《The Military-industrial Scientific Research System of the Academic Master》 Chapter 1 Reborn in 1996, design a fighter jet! (New book request Chapter 1: Rebirth in 1996, design a fighter jet! (Please read the new book) In a classroom at Beijing University of Aeronautics and Astronautics, Chang Haonan was sitting on a chair, looking blankly at a pile of aircraft design drawings spread out in front of him. I have three students who look like two boys and one girl. Am I not in Base 29 testing the JF-22 ultra-high-speed wind tunnel that will be put into use soon? Chang Haonan thought to himself: Where is this? The surrounding walls are slightly worn, and the bottom one meter near the ground is painted green, especially in areas that are often exposed to the sun. ?Two huge ceiling fans were humming overhead, and there was no sign of an air conditioner. The blackboard next to it is actually a black cement board instead of the common green board made of epoxy resin and polymer alloy. It has turned white due to long-term use and wear. Even sitting in Chang Haonan''s current position, he can see it. I don''t know what''s written on the side. He was quite sure that there was no such place in Base 29. Chang Haonan''s eyes quickly focused on the wooden desk in front of the blackboard. There was a school emblem hanging in front of the desk, which was a pattern he was very familiar with. Beijing University of Aeronautics and Astronautics, my alma mater. He raised his hand and pinched the right side of his cheek, and then confirmed that this was not a dream. Haonan, Haonan? One of the boys with curly hair and a slightly fat figure leaned over and gently patted Chang Haonan on the shoulder. "Are you okay? Why did your face suddenly turn pale? And you have been stunned for five or six minutes since just now. If you find it too difficult, just say it, and the brothers will not laugh at you." ?Chang Haonan turned his head to look at the other person, and it took him a few more seconds to find this face from distant memories. Old Wu? Chang Haonan asked tentatively: How come you... ??The person he just spoke to was his roommate when he was in college, named Wu Yifan. The two had different ambitions but had a good relationship. The latter entered the business world after graduation and gained a considerable fortune. only What appeared in front of Chang Haonan was the image of Wu Yifan when he was young. At that time, his hair was still very thick, and there was no scar at the corner of his eye that was later chopped off in retaliation by a competitor. "Hey, Haonan, even if you really find it difficult, there''s no need to pretend that you don''t know Lao Wu. Even if we can''t design a supersonic fighter, there''s still no problem in designing a glider. There''s no shame in it." Another tall and thin man said The boy showed a helpless smile: "And I think you should take a break. You''ve been staying up late these days, right?" ?This sentence finally fully awakened Chang Haonan''s memory of the scene in front of him. Dont worry, Im fine. He took a deep breath, and then looked down at the drawings on the table in front of himit was a J-7, or to be more precise, the design drawings of the MiG-21, a copy of the J-7. This happened in the second semester of his junior year, that is, in the first half of 1996. He was greatly stimulated by the dispute between China and the United States at the beginning of the year, so he decided to study aircraft design, which accounted for 10 credits. In the course, an improved fighter jet was designed using the J-7 as a prototype. The three people in front of him are classmates in the same course group as him. Except for Wu Yifan, who is not interested in this major but is determined to go into business, the tall and thin man named Zhou Shuwan is the other big figure in the group besides himself, and his father is a senior researcher at the 601 Institute. This matter Only a few people know about it. ? Zhou Shuwan also entered Institute 601 after graduation, and later served as a designer of a certain type of carrier-based aircraft subsystem. As for the girl who has never spoken, her name is Zhang Man. She is a petite, sweet and cute beauty with above-average academic performance. Since Zhou Shuwan has always liked her, he decided to let her join the group. However, Zhang Man actually had no feelings for Zhou Shuwan and just kept holding the latter''s thigh. He got high marks in all experimental courses and group assignments, but Chang Haonan was not familiar with her, and they lost contact after graduation. ?Such a group actually only has 2.5 people, but now that the team formation stage is over, it is no longer possible to replace them casually. Regarding Chang Haonans idea of ??designing a supersonic fighter, the three people naturally felt that it was completely impossible. They did not object directly. They just found the design drawings of the J-7 prototype MiG-21 and said that since they want to improve, they should at least fully understand the design prototype. ??If Chang Haonan can calculate the aerodynamic performance of the MiG-21, then they agree to accompany him to continue the adventure. If not, then follow Zhou Shuwan''s idea to design a glider with a large aspect ratio. ??Is it just the result... After all, people have their limits. For Chang Haonan, whose talents on the original timeline are generally just hard work, this matter is indeed beyond his capabilities. In the end, he had no choice but to design a glider with three other people as agreed. Although this course got a good score in the end, it has become a regret that Chang Haonan has always had. As for the current situation, he should have returned to his college days nearly 30 years ago, and it happened to be at this critical moment. Calculating the performance of the MiG-21 is not a problem at all for Chang Haonan now. Because in addition to the work experience from later generations, the moment Chang Haonan saw the complete design drawings, a [scientific research guidance system] suddenly appeared in his mind After he comes up with a reasonable and closed-loop project idea, the system can spend a certain amount of [scientific research points] to determine what to do and how to do it in each next step, and give him the corresponding abilities. Simply put, this system is equivalent to a tutor who is responsive and provides guidance. ?The moment he saw this system, Chang Haonan almost fainted with excitementafter all, everyone who has studied for a graduate degree hopes to have such a mentor. Of course, if 10 times the scientific research points are consumed, the system can directly give the correct or optimal result, but as someone who has actually led a project, Chang Haonan knows very well that this is by no means the most efficient way to use it. ?Translating the results in his mind into reality also requires time and energy. Even if he stays awake, he will not be able to output many specific scientific research results. Moreover, the system''s scientific research points probably do not support such a squandering. More importantly, he is not the only scientific researcher in China. ??If you can drive the efficiency of the entire Chinese scientific research system by solving key problems or providing methodologies with the help of a super mentor like the system, then the power you will unleash will be hundreds of times greater than if you were alone. ?However, it is too far to talk about this in Chang Haonan''s current state, so he decided to redeem his past regrets first. Scientific Research Points: 10 Theoretical level (full level LV5): LV2 (0/10000) Engineering experience (full level LV5): LV1 (0/1000) Management ability (full level LV5): LV0 (0/100) Comprehensive ability: LV1 Projects in progress: 0 Projects that can be carried out: 1] The ability value level is not high. But this is a good thing. It means that for the system, the knowledge Chang Haonan mastered before his rebirth was very rudimentary. The levels here are obviously based on the upper limit that humans can reach, not on the current era. In other words, the future is promising! Looking at the system panel, a bold idea came to his mind. Even though he himself knew it was unreliable. But now that we have a system, we have to give it a try after all... Design me a J-20! ? Dont worry about whether China could build the J-20 in 1996, just decide whether its handsome or not! Stealth, canards, dual-engine heavy combat, DSI air inlet, active phased array radar... You must know that the YF22 has not yet completed its test flight at this time! However, Chang Haonan''s YY was poured cold water on him not long after he started. Insufficient competency level and no available ideas for the project Obviously, his idea about the J-20 is just an idea at best, and it completely fails to meet the "reasonable and closed-loop project concept" required by the system. It makes sense to think about it, just like a graduate student who has just started graduate school and asks his instructor to teach him how to design a fifth-generation fighter jet. Obviously, he is still slightly lacking in ability and experience. We still have to modify the MiG-21 based on the existing equipment... Chang Haonan had no choice but to return his attention to the MiG-21 design drawing in front of him. The system now only has 10 scientific research points and must not be used indiscriminately. There are indeed many deeply improved models of the MiG-21 in later generations, but some of these designs require a lot of computational simulation work. Chang Haonan does not know that based on the scientific research in 1996 What kind of plan can he implement given the conditions and his current abilities. ?So the ideas of Zhou Shuwan and the others are actually correct. It is better to understand the MiG-21 first, and by the way, check the hardware level of Beijing University of Aeronautics and Astronautics in the mid-1990s. Use CATIA to model the MiG-21, and then use the finite volume method to simulate the aerodynamic characteristics of the aircraft. Chang Haonan thought silently in his heart. Technology points consumed to improve the project: 1 point, 10 points consumed to directly provide the project results. Do you confirm the launch of the MiG-21 modeling and simulation project? ?Chang Haonan took a deep breath and clenched his fists suddenly. Its done! Confirm! Improve the project! A large amount of information quickly poured into his mind. Although he still didn''t know what the result of this problem was, he at least knew what to do next and how to do it. Thats it, I understand it completely.jpg After another half-minute of silence, Chang Haonan spoke again: "I have thought of a way. Believe me, we can design even a fighter jet." "Haonan, do you... really have an idea?" ?Zhang Man placed an enamel cup filled with hot water on the table in front of Chang Haonan and asked with a slightly skeptical tone. On the side of the enamel cup is an air force emblem and an inscription from the instructor: "Establish a powerful people''s air force to defend the motherland and prepare to defeat the invaders." Chang Haonan specially asked his father to get it. He has been carrying it with him since then and has been using it for many years. As a person whose main goal was just to get high scores, Zhang Man naturally felt that the idea of ??designing a fighter jet was a fantasy from the beginning. But after all, Chang Haonan''s usual grades were among the best, and the course design work was indispensable for the latter''s contribution. She also didn''t want to object directly and make the relationship too tense. ?That''s why I came up with the idea of ??asking Chang Haonan to analyze the aerodynamic characteristics of the MiG-21, hoping to make the other party retreat in spite of difficulties. ?There is no exam in this course, and the course design assignment will directly affect their final grade, and she doesnt want to go crazy with it. "Thank you..." Chang Haonan picked up the cup and drank the water in it. Then he grabbed the MiG-21 design drawing, folded it and put it in the bag next to him. Lets go to the computer room! This book has been internally invested and signed, please read it. With the current Qidian mechanism, recommendations before new books are put on the shelves only rely on follow-up reading data, so readers are kindly requested to take a few minutes to read to the end of the book. Kneel down and thank you! ? (End of this chapter) Chapter 2 Computational Fluid Dynamics Simulation Chapter 2 Computational Fluid Dynamics Simulation In 1996, it was an era when you had to wear shoe covers when entering the computer room. Computers were a new thing. Of course, students personal computers were almost non-existent. Even the schools computer room could not be used unless approved by the college or a higher level. You can only use your student ID card for up to one hour a day. At this time, Chang Haonan was sitting in front of a computer of unknown brand, looking at the familiar yet unfamiliar pictures on the monitor. The classic fluid dynamics calculation software Fluent is a relatively new version compared to 1996. ??The oldest fluent is just a partial differential equation solver and does not even have a meshing function itself. In that case, the workload will be several times more. ?Although Chang Haonan can perform smooth operations with system buffs, the computer itself in 1996 was really unable to respond smoothly, and what he lacks most at the moment is time. ?Even so, the 3D modeling process still requires additional software, such as Dassault''s CATIA. Now Ye Qing is really back, in a double sense. Chang Haonan thought to himself as he looked at the CRT monitor, trackball mouse and win95 interface in front of him. Haonan, when did you learn these things? Wu Yifan, standing behind Chang Haonan, had curiosity in his eyes. ? What he is concerned about is of course not the simulation modeling work that Chang Haonan is doing per se, but the latter''s extremely skilled use of computers. He knew a big boss from Huaxia Renmin University. He made more than 200,000 yuan through computer programming when he was a sophomore, and he became his idol for a time. "Of course when you go to contact business outside the school." Chang Haonan said without looking back. ??And Zhang Man and Zhou Shuwan, who were also standing behind Chang Haonan, had their jaws almost dropped with disbelief on their faces. Compared to Wu Yifan, who was hardly interested in his studies, the two of them knew how difficult it was to model a complex structure like an aircraft, even if they just transferred the things they had already drawn on the drawings to the computer. Even for a novice, this is an astronomical amount of work. ?However, all this was so easy in Chang Haonan''s hands. As his fingers flew around on the keyboard and mouse, a fighter model with a large delta wing and a conventional layout gradually appeared on the computer screen. Equivalent wing model, completed Full aircraft aerodynamic model, completed ? halfway through, the computer room management teacher came over to remind them that the time was up. Wu Yifan, who was afraid that Chang Haonan would be disturbed, decisively added an hour of his own time to the computer. Later, Zhou Shuwan and Zhang Man also contributed their student ID cards. Inlet duct modeling ?Engine modeling Under the "guidance" of the system, Chang Haonan almost entered a state of selfless work. When he finally completed the required modeling work, he realized that several hours had passed. "Is this... the end?" Zhang Man stared at the screen in front of her in stunned silence. Although she had just watched the entire modeling process, she was still impressed by the fact that it took four hours to create a three-dimensional model with such high precision. There is a sense of unreality. "Strictly speaking, of course not." Chang Haonan stretched out and leaned back on the chair: "But our course only requires aerodynamic design, so we don''t care about airborne equipment, internal structures, etc. Anyway, we know that this plane can definitely fly." "Awesome, Brother Nan, I don''t think even the professors in our college are more skilled than you, right?" Zhang Man did not hesitate to praise Chang Haonan at all, and his name has also changed. . ??Originally I thought the big guy in the group was Zhou Shuwan, but it turned out that Chang Haonan, who seemed a little crazy before, was the real hidden boss! No, Xueshen! How can Xue Shens madness be called crazy? Thats just ordinary people not understanding Gods thoughts. If we only talk about simulation, its pretty much the same. ?Chang Haonan reached out and touched his thick hair, leaned back on the chair, and showed a confident smile. He is not just boasting. There may not be anyone in the world who is more skilled than him in this regard. "But what we were talking about before was to calculate the performance of this aircraft?" Wu Yifan scratched his head. Although he also saw that Chang Haonan was powerful, he really didn''t want to increase his own strength. "Of course, but the calculation process will be more time-consuming, so this time I only calculated the performance of the inlet part. Next, I only need to use the finite volume method to solve the Euler equation for the flow field outside the body, and use the finite volume method for the flow field inside the inlet. By solving the N-S equation, you can obtain more typical inlet performance data. ?Chang Haonan saved the model file and opened fluent to prepare for the next step. For grid generation of complex shapes, partitioned structured grids or overall unstructured grids can be used. Partitioned structured grids have high calculation efficiency, but the degree of automation of grid generation is low, while the characteristics of unstructured grids are opposite. As a "scientific research mentor", the system naturally taught Chang Haonan all these two techniques, but the latter needed to choose one of them to output to the computer in front of him. Although the new version of the software in 1996 can already divide the grid, the function is not very complete. Considering that the performance of computers in this era is still slightly different from that of more than 20 years later, Chang Haonan finally chose a computer with higher computational efficiency. former. "Unit No. 27, it''s time for you guys to board the computer again, this time..." At this critical moment, the computer room teacher''s voice came from the door again, and this time they no longer had another student ID card to use. . Use mine. A cold female voice sounded from the row behind Chang Haonan. Several people turned around and saw a tall girl with long hair shawl, wearing a light blue dress and round glasses stood up and handed over a certificate with a red cover. He handed it to the computer room teacher: "I got off the plane here, and it''s theirs after that." That certificate was obviously unusual. The computer room teacher just glanced at it and turned around and walked out of the computer room without even writing anything down in the notebook in his hand. "Thanks" After all, he was a big help, so after the computer room teacher left, Chang Haonan quickly thanked him, but after he spoke, he was not sure whether the other person was a teacher or a student. Yao Mengna, a second-year Ph.D. student, should be considered your senior. Yao Mengna gave a brief self-introduction, left the computer she had just used, and came to the side of Chang Haonan and others: "As long as you don''t get off the computer, you can keep using this computer, and you don''t have to worry about anyone disturbing you again." Thank you so much, senior sister, we... ??Wu Yifan thanked him quickly with a smile on his face, but he was interrupted in the middle of his words: "It''s okay, I just want to see how you plan to continue. Are you going to conduct a fluid dynamics simulation of the entire machine?" Obviously Yao Mengna is also very interested in the modeling that Chang Haonan is doing, but because the four people just spoke in very low voices, she could not hear the specific content clearly. Chang Haonan nodded: "Yes, we are going to use Fluent to numerically solve the fully viscous Nevi-Stokes equation." ?Yao Mengna''s eyes widened slightly after hearing this answer. She really hadn''t thought about these people, or that this one who looked like an undergraduate was going to play so big - she had already noticed these people in the row in front of her just now, and naturally knew that all the work was done by sitting in front of the computer. Completed by this person. In fact, even Yao Mengna, who is in the second year of her Ph.D., has only just begun to gradually come into contact with computational fluid dynamics (CFD) simulations of aircraft. "You don''t mind if I look over there, right?" Although Yao Mengna''s tone was questioning, she sat on a chair next to her before Chang Haonan could answer: "Maybe I can still be of some help." Having said that, Yao Mengna herself didnt actually have a particularly clear idea. She mainly wanted to find some inspiration through Chang Haonans approach. At this time, digital design and computer simulation are still new things to aviation designers across China. ?While the two were talking, Chang Haonan had imported the just-completed modeling into Fluent and started meshing the finite volume method. "Ah" Then its time for him to perform. Fluent in this era does not yet have a beautiful graphical interface and a large number of preset models that can be directly called. Especially for complex simulations such as supersonic fluid dynamics, it can only complete part of it. ?However, this does not stump Chang Haonan, who already knows all the next steps. Since the existing software can only complete part of the work, use Fortran language to write an algorithm for numerical solutions to partial differential equations. ?? Then operate Fluent to complete the lazy part by calling external programs, and then use scripts to realize automated operations. Yao Mengna, who was watching from the side, had a relatively relaxed attitude at first, but after just closing her eyes and yawning, she realized that she could no longer keep up with her thoughts. ?Especially Chang Haonan''s code input speed almost took off, leaving her with no time to clearly see the function of each piece of code, let alone write down the entire process. "that" Yao Mengna spoke hesitantly, wanting to ask Chang Haonan about his specific numerical simulation ideas, but for a moment she couldn''t bear to ask the undergraduate question directly, so she had to use a more euphemistic way of saying it. Can we get our thinking together? My thoughts are a little different from yours. Okay, tell me your thoughts first, and let me see if there are any problems. Chang Haonan was completely immersed in work again, and he had only been reborn for a few hours, so he subconsciously thought that he was still leading interns in the research institute. "ah?" ?Yao Mengna almost broke through with one sentence. No, what do you mean you should check to see if there is any problem? Do you really regard yourself as the standard answer? ?Are you so confident? And most importantly She couldn''t think of a complete idea at all! ?Yao Mengna took several deep breaths in succession and patted her chest again before she could catch her breath. Nono need, just tell me what you think, and Ill just compare it myself. (End of this chapter) Chapter 3 Are all undergraduate students so good these days? Chapter 3 Are all undergraduates so good these days? "That''s okay, then you can take note of it." Chang Haonan didn''t think much and continued to type on the keyboard without looking back. At this moment, his work also entered the final part. Yao Mengna didn''t care about anything else at this time, and quickly took out a pen and notebook to record. However, Chang Haonan, who had the most contemptuous attitude in the world, made the other three people dumbfounded - Is this the real boss? ??Teach a second-year PhD student directly as a second-year undergraduate student? ?Wu Yifan suddenly regretted that he had not studied hard in the past three years. After writing the last line of code, Chang Haonan pressed the middle button of the mouse and dragged the programming interface back to the top. His programming format was very standardized, and he did not write comments just to save time. In addition, the code was not too much. So it is very simple to talk about. Considering the limitations of computer performance and the symmetry of the model, half the model is used for calculations to save resources. The mesh near the wall can locally increase the density... The inviscid flux adopts the second-order Up-wind Roe-FDS format The turbulence model adopts the k-SST two-equation model. Taking into account the high temperature effect of the gas, the thermal complete gas model considering variable specific heat is used in the calculation..." The molecular viscosity is calculated using Sutherlands formula, adiabatic no-slip and solid boundary conditions are adopted for the wall surface, and pressure far field and pressure outlet boundary conditions are adopted for the inlet and outlet respectively. When each residual indicator decreases by at least two orders of magnitude and the export flow basically remains unchanged, the calculation can be considered to have converged After spending a lot of time explaining his simulation ideas, Chang Haonan directly mobilized the program to start calculations for the modeling he had just done, and almost habitually said to Yao Mengna, who was still writing fast: "Specific programming statements and grids I wont talk about the division operation. People who have studied in graduate schools should know it. ??? Yao Mengna raised her head in confusion. ??Chang Haonan''s words simply stopped her. What does people who have studied as graduate students should be able to do? How can anyone teach me this kind of thing step by step now? I almost always figure it out myself, okay? ??And am I a graduate student or are you a graduate student? ?Okay, Yao Mengna admits that the undergraduate student in front of her is indeed a bit better than herself in simulation... Im so angry, but theres nothing I can do. ?But...is this really something that undergraduates can do? ?Her eyes glanced at the student ID card that Chang Haonan placed next to the keyboard. ?? is the color of undergraduate students. ?She even quietly opened the outer page of her student ID card to check it. ?Chang Haonan, Class 9302, Department of Aircraft, School of Aeronautical Science and Engineering, Beijing University of Aeronautics and Astronautics, is a junior this year. But...how is this possible? Putting aside computational fluid dynamics, even writing code itself is not that easy. ?Most students only started to learn about "computer" after entering their freshman year. Considering that they only have up to one hour of operating time per day, very few can perform simple programming. unless Unless he has been exposed to these things before going to college. ?Yao Mengna was obviously not the only one who had such thoughts. Zhang Man on the other side looked at Chang Haonan and his eyes gradually changed. You need to know who were the people who could buy a computer at home in the mid-1990s? Lets not say you have to be rich or noble, at least you have to have something. In fact, Chang Haonan had realized that his attitude just now seemed a bit wrong, but looking at Yao Mengna not far behind him, he really didn''t know what to say about it. So I had to stay silent and let this matter pass as soon as possible. Fortunately, the awkward atmosphere did not last long. "It''s already dinner time. I''ll buy food for you." Zhang Man looked at the clock on the wall and offered to help with errands: "Senior sister, do you want one too?" Before Yao Mengna could answer, Zhou Shuwan stood up next to him: "I''d better go. It''s quite far from the canteen, and my pace is faster." ?This sentence made Chang Haonan, who had completed the programming and was just waiting for the computer to run the results, shake his head helplessly. Zhou Shuwan did have true feelings for Zhang Man, but the latter... Neither agreed nor refused, so he was hung up for four years. Chang Haonan is not sure what happened next, but the two people must not have gotten together, because Zhou Shuwan, like himself, was still unmarried more than 20 years later. In short, licking a dog will not end well. Dont get me wrong, Chang Haonan has never been a licker. He was just focused on work when he just graduated. Later, he became somewhat successful at work, got older, and traveled all day on business, so... ?Of course, he will not be stupid enough to directly stop the other person from doing anything. A person who is immersed in love will not realize that he is being played like a monkey. On the contrary, he who is trying to dissuade is likely to be in trouble. ?Let''s wait until we have the opportunity to make some insinuations. If we still don''t understand, we can only respect and bless it. In the end, Zhou Shuwan couldn''t defeat Zhang Man and made the latter trot to the canteen to buy food. "Strange...she usually asks me to go, what happened today..." Zhou Shuwan muttered with some confusion as he looked at Zhang Man''s leaving figure. "Uh..." Wu Yifan, who had seen a similar situation for the first time, put his hand on his forehead and sighed. Whats wrong? Zhou Shuwan heard Wu Yifan sigh and thought there was something wrong with Chang Haonan''s simulation, so he quickly came over, but the screen seemed to be similar to before, with a bunch of codes and data that he couldn''t quite understand. ?At this time, even Yao Mengna, who was originally looking like a loser, couldn''t help but raise her head and glance at Zhou Shuwan with hopeless eyes, and then showed an expression of an unteachable child. In fact, the workload of this simulation is not large. Chang Haonan''s purpose is just to calculate the original performance of the MiG-21, especially the total pressure recovery coefficient of the inlet under several typical working conditions, and the wing at different altitudes. And the lift coefficient under the angle of attack and the control efficiency of several rudder surfaces, and then make the body model. After all, according to his plan, no changes will be made to the rear fuselage of the aircraft. It will be used directly when the time comes. ??And considering the limitations of hardware performance, he only asked the system to output the performance parameters of a few design points, and did not directly run the flow field curve as he was used to before rebirth. However, despite this, by the time Zhang Man bought the rice, the calculation was still only partially completed. What are these... parameters? Zhang Man distributed a foam lunch box and disposable tableware to everyone from the bag in his hand, while looking at the screen in front of Chang Haonan with wide eyes. As a student majoring in Beijing Airlines'' ace major, Zhang Man could understand what these results probably represented, although she had not followed Chang Haonan''s idea of ????simulating it just now, but she still asked with curiosity and admiration. "Well, the static pressure distribution at specific points on the inlet wall under different airspeeds and angles of attack, the Mach number distribution at typical positions of the axial interface, and the drag coefficient at different incoming flow Mach numbers can be calculated. The average total pressure recovery coefficient of the airway, as well as the total pressure distortion. ?In addition, if you make these data into charts, you can also draw the flow field structure at the design point. Of course, the calculation is only more than halfway done now, so you have to wait. " After Chang Haonan finished speaking, he stood up with the lunch box in his hand and prepared to go to the empty classroom next to him to eat - letting Zhang Man bring the lunch box into this building was probably the limit of the management teacher. If the latter could see five people Sitting in front of the computer to eat, I''m afraid my blood pressure will explode and I will faint. (End of this chapter) Chapter 4 Next step (seeking further study) Chapter 4: Next step (please follow up) ?But perhaps it was because his body was seriously lacking rest before he was reborn, coupled with an afternoon of sitting and hunger, Chang Haonan suddenly felt light-headed when he suddenly stood up, and then the edges of his vision gradually turned black... Fortunately, Wu Yifan, who had quick eyesight and quick hands, stretched out his hand to support him from behind: "Haonan, you probably haven''t slept much these days. Don''t be too anxious. There is still a lot of time for course design, so don''t rush for a day or two. " Brother Nan, you can go back and take a rest after dinner. You can leave data graphing and performance analysis to us. ?Zhang Man''s expression of concern did not seem to be fake. The four of them were both prosperous and devastated as the same course design team. Naturally, she would be worried about the new person she had just embraced. ?Furthermore, although the latter tasks are also very tedious, they are not very technical and are not difficult for junior students when the data is already available. As an experienced person, Zhang Man deeply understands that being in a group with a big boss does not mean that he can do nothing. Although it is easy at the time, there is a high probability that there will be no next time. On the contrary, if you take the initiative to share some tasks, you will most likely gain the favor of the top academics. "No, this is the original design data of MiG-21. Now I just compile the calculation program and verify whether it can run smoothly. In this way, after our design is completed, we only need to slightly modify the model and grid mode. You can do the calculations. By the time they were talking, they had already walked to the next classroom. Chang Haonan opened the lunch box in his hand and answered without raising his head. ?Two meat dishes and one vegetable dish with white rice was considered a good meal in the 1990s. ?Leave aside what Zhang Mans personality is like, this kind of fair and thin girl doesnt really fit in with his aesthetics. If I have to say... ?Chang Haonan glanced at Yao Mengna, who was eating quietly opposite. ?So he discovered that only his box contained two meat dishes. This Zhang Man can only be said to be a little scheming, but not much. "That''s it...forget it, let''s eat first." Zhang Man, who knew he had just acted in the wrong place, had a somewhat embarrassed expression on his face, but he returned to his original state in an instant. Are you going to modify the design of the aircraft later? Yao Mengna also heard what Chang Haonan said just now, raised her head and asked. Yes, this is a big assignment in our aircraft design course. When Haonan first said he wanted to design a supersonic fighter, we thought it was unrealistic. But we didnt expect him to be so powerful. ?Zhou Shuwan is definitely an honest man, and even praised Chang Haonan in front of his goddess. ?After seeing the latter''s smooth operation, the other three people no longer had any thoughts of questioning Chang Haonan''s ideas. Its quite an idea. When I first took this course, I designed a low-wing transport aircraft, and I got full marks in the end. Yao Mengna raised her head slightly, seeming to miss her past undergraduate days: "In fact, according to my experience, as long as you can complete the design process without making mistakes, you can almost get full marks." ?Of course, Yao Mengna was just stating a fact and had no intention of bragging. In her opinion, for students like Chang Haonan, getting perfect marks in course design is just something that comes easily and is not worth mentioning at all. ?However, invisible pretense is the most deadly. This sentence still made Zhou Shuwan and Wu Yifan look at each other. After all, if it weren''t for Chang Haonan, they really wouldn''t dare to say that they could come up with an error-free design, even if it was the simplest aircraft as Zhou Shuwan said. By the way, things cant be saved in the schools computer room. How are you going to bring Haonans program back? After more than ten seconds of silence, Zhou Shuwan brought the topic back to their design project. Chang Haonan, who had been eating rice with his head down, was sorting out the next step in his mind. Since he did not let the system directly give the design results, after determining the general direction, the specific details still had to be optimized manually. In fact, it means making several different designs, and then testing their key performance at the design point to see if you can find some rules, and then slowly fine-tune them. These are all very experienced operations. So after hearing Zhou Shuwans question, Chang Haonan answered almost without thinking: "Who among you brought U..." At this point, he realized something was wrong. Where did he get a USB flash drive in 1996? So he quickly changed his words: "Which of you brought a floppy disk? Our program is not big. We separate the model''s engineering files and the CFD simulation code." Just save it to two floppy disks. The four of them looked at each other in silence. ?These days, everyone doesnt even have their own computer, and few people would spend money to buy storage media like floppy disks. "I have two empty floppy disks here. I''ll lend them to you first." Finally, Yao Mengna spoke: "But remember to return them to me after you use them." ?Chang Haonan took the floppy disk from the opponent''s hand. Yao Mengna''s name, as well as the college and office where she was located were written on the disk. Sister Yao is from Academician Du Yishans research group? Zhang Man next to him came over and took a look. Then asked in shock. "Yes, Academician Du is my mentor." Yao Mengna replied calmly, flipping a few strands of hair that hung in front of her forehead to her shoulders, as if it was just a trivial matter. Zhang Man and Zhou Shuwan''s eyes widened almost at the same time. Academician Du Yishan is a Beidou-level figure in the field of aerodynamics in China. Although he is no longer responsible for specific aircraft design projects, the connections and resources behind him cannot be underestimated. ?In this era of tight scientific research funding, having such a mentor means being exposed to more topics, which also means many more opportunities than others. ??And Yao Mengna is also a student of Du Yishan. You should know that academician students and academician research group students may sound similar, but in reality they are very different. Zhou Shuwan, who had already determined to further his studies due to family reasons, was immediately full of admiration for this senior student, and began to hesitate to ask the other research groups standards for recruiting students. Zhang Man, who was next to him, had already begun to think about how to build a good relationship with this senior. Only Chang Haonan and Wu Yifan were completely indifferent to this. The former is still considering how to arrange the next work. After all, each new design requires re-modeling and calculation of the nose module. Although most of the code does not need to be rewritten, it is also a very time-consuming task, and he It is impossible to be lucky enough to meet Yao Mengna in the computer room every time. As for the latter, he has no interest in this major at all. At this time, he is thinking about a business deal that he will go out to discuss in the next two days, and he did not even hear the conversation of the other people just now. After dinner, Chang Haonan waited for a while and let the computer run out all the calculation results. After receiving the system''s [Project ended successfully] prompt, he copied the files to two floppy disks, and then He rubbed his sore eyes and breathed a sigh of relief. On the one hand, the preliminary work is finally completed, on the other hand, it also proves that this system... Its really awesome! (End of this chapter) Chapter 5 J-7 modification plan Chapter 5 J-7 modification plan What are we going to do next? ?Zhou Shuwan watched Chang Haonan turn off the computer with still unfinished thoughts. He used to think that he was quite talented in academics, but today he really saw what it means to have a better life than others. "Then of course I go back to sleep. I have stayed up late for several days. If I don''t catch up on sleep, I will die suddenly." Chang Haonan took out two floppy disks and carefully put them into his school bag. Then he stood up and stretched his muscles: "Old Wu is right. There is still time to design the course. There is no rush in this day or two." ?After returning to the dormitory, Chang Haonan took a hurried shower and fell asleep almost as soon as he touched the pillow. Maybe it was because he hadnt had a good rest for too long. In short, when Chang Haonan woke up, it was already noon the next day. ? He ??almost habitually wanted to go to the bedside to touch his mobile phone to see if there were any WeChat messages. After grabbing it, he realized that he had returned to 1996. Fortunately, it is a Sunday, so there is no need to worry about going to class. "Haonan, what did you do last afternoon? When we came back in the evening, we could hear your snoring from outside the door. You were silent in your sleep for more than two years." As soon as Chang Haonan sat up from the bed, a voice came from his upper bunk. He raised his head and saw a boy with short hair, holding a covered book and reading. ?Chang Haonan remembers that his name was Huang Zhiqiang and his grades were very good, but he really didnt have any more specific impression. Hey, I have been busy with the course design these days. I must be too tired. Im really sorry. Chang Haonan said and picked up his washbasin, cup and towel from the shelf next to him. Unsurprisingly, Wu Yifan is not in the dormitory. He has lived outside most of the time since his sophomore year. Course design? Huang Zhiqiang put down the book in his hand and looked at Chang Haonan below: Do you really want you two undergraduates to design a fighter jet? As one of the top students in the class, Huang Zhiqiang is well aware of the difficulty of designing a supersonic aircraft, and he also knows Chang Haonan who lives in his lower bunk very well. ??The opponent cannot be considered a talented player, not to mention that there are two losers in the course group, Wu Yifan and Zhang Man. There are only two people who can actually play a role. Its enough, its not too complicated. Chang Haonan was thinking about which improvement plan to choose, and he just waved his hand and answered casually. After saying that, he trotted away from the dormitory, leaving Huang Zhiqiang with a stunned look on his face as he disappeared through the door. "It''s really crazy..." Huang Zhiqiang shook his head and picked up the book again to study. "Zhiqiang, you said...he can''t really design it, can he?" Liu Ran, who was also reading a book on the upper bunk opposite, asked. Tah, just them? Huang Zhiqiang sneered, looked around to make sure there was no one else in the dormitory, and then continued: "You see, so many members of the academic department and academicians can only copy homework according to the shabby designs designed by the Soviets, if you ask me. , they are all trash, not to mention a few of them. After finishing speaking, Huang Zhiqiang paused for a moment, turned over the book in his hand and showed it to the other person. The content inside is actually in English. "I asked my sister to mail me an aircraft design manual from the United States. There are many things in it that are not in our textbooks, and the teacher never taught them in class. Are you still designing an aircraft?" Huang Zhiqiang said with a look of disdain. expression. He originally wanted to go abroad after graduating from his bachelor''s degree, but Beijing Airlines'' government-sponsored undergraduate study abroad quotas are not available every year, so he had to settle for a postgraduate degree in China first. After graduating from his master''s degree, there will be more quotas to study abroad for a doctoral degree. Quite a few. Of course, the premise is that he cannot participate in confidential projects during his master''s degree. It seems it has to be you, Brother Qiang. Liu Ran was relieved when he heard what he said and quickly gave Huang Zhiqiang a thumbs up. The dormitory soon became calm again. ?However, even though Huang Zhiqiang said this, Chang Haonan''s calm tone and actions just now lingered in his mind, making him unable to concentrate. "Do they have any other trump cards that I don''t know about?" Huang Zhiqiang frowned slightly and thought in his heart. On the other side, after washing up as quickly as possible, Chang Haonan changed his clothes and prepared to go to the cafeteria to have lunch first, and then go to the classroom to meet the other three people. After all, the course design assignment still involves a lot of writing, drawing, and simple calculations, which he cant handle on his own, and the extra three hours of computer time are crucial. When Chang Haonan arrived at the classroom where they had agreed to arrive, Wu Yifan and Zhou Shuwan were already waiting inside. However, the three of them waited for another ten minutes and did not see Zhang Man until the agreed time passed. shadow. ?At this time, everyone didnt have mobile phones, so there was no way to contact Zhang Man, and there were no short videos in Moments to view. All we could do was sit and wait. Speaking of which, Haonan, the software you used yesterday was called fluent? Wu Yifan, who had been dazed just now, suddenly asked. "Yes." Chang Haonan nodded: "You should at least listen to it in class. Although we have not learned this software, we should have been introduced to it before." Ah? Is that so? Wu Yifans expression was a little confused. "No, I remember that computer simulation software was introduced in the design methodology course in my senior year. I had seen it in the senior''s book before." Zhou Shuwan also turned around and joined the topic: "Hao Hao Nan, youre afraid you thought we had learned it all when you were studying on your own, right? ?Chang Haonan rubbed the back of his head in embarrassment. He only roughly remembered that he had been exposed to fluent software during his undergraduate period, but he had completely forgotten how old he was. Sorry, sorry, Im late. I just went to the library to look for some information and didnt pay attention to the time. ?At this moment, Zhang Man, carrying a schoolbag and a huge cloth bag in his hand, finally appeared at the door, panting. Chang Haonan curled his lips. He never liked people who had no sense of time, but he didn''t say much: "Now that we''re all here, let''s get ready to start the next step." Well, regarding the improvement plan for this aircraft, I have found some design plans that can be used as a reference. I wonder if Brother Nan is interested in hearing about it. "ah?" ?Chang Haonan really didn''t expect such an incident. It seemed that the other party''s lateness was not entirely due to personal factors. "Since Brother Nan has analyzed the performance of the MiG-21 prototype yesterday, our next step should be to determine the general direction of improvement, right? Brother Nan?" Zhang Man raised his head again and faced Chang Hao Nan blinked. Yes, thats right. Chang Haonan was completely unmoved and just nodded. "The J-7, a copycat model of the MiG-21, is the main fighter aircraft that our country''s aviation industry department can provide to the air force in large quantities now, and even in the future, but in any case, it has been almost 40 years since the prototype was put into service. So my idea is to use the existing mature technology to improve the combat effectiveness of the improved model as much as possible within the capabilities of the aviation department. Having said this, Chang Haonan lowered his head and looked at the enamel water glass he had on hand, took a deep breath and continued: "The feeling of powerlessness we had when we faced the Nimitz and Independence at the beginning of this year cannot be repeated again. Even before his rebirth, even though many years had passed, Chang Haonan still remembered the anger and powerlessness he felt when he saw the news. (End of this chapter) Chapter 6 Arent you bullying honest people? Chapter 6 Arent you bullying an honest person? The other three people looked at Chang Haonan with his fists clenched. Of course they knew that the latter decided to make his coursework more difficult because of this incident. What they didnt know was that Chang Haonan almost became an air force pilot, but during the physical examination, it was found that his teeth were malocclusion, so he was dismissed. "But Haonan, if this is the case, it''s not just an aircraft design issue." Zhou Shuwan has been influenced by it at home since he was a child, and he understands nature better than others: "Based on the existing mature technology, we must also consider production Manufacturing issues, but we are still college students after all, and we have no way of knowing what the specific level of my countrys current aviation manufacturing technology is? Chang Haonan looked at Zhou Shuwan next to him and stood with his hands behind his desk: "From the beginning, I was not prepared to just make a design that could not be implemented." According to common sense, what Zhou Shuwan said is certainly correct. However, as a person who was reborn more than twenty years later, he himself went beyond common sense. In fact, at the very beginning, when it came to improving the J-7, the first thing Chang Haonan thought of was the FC1 Xiaolong fighter derived from the modified "Super 7" project. This aircraft was completely unrecognizable in appearance. There is no shadow of the original model. But after seeing the true performance of computers in this era yesterday, he realized that without supercomputing resources, it would be extremely difficult to design the DSI air inlet with an ordinary PC. Needless to say, other parts of the body have also been greatly modified. At the moment, the best aviation engine that can be produced independently in China is the turbojet 13F, which is really not enough to propel a third-generation fighter jet. There is no other way, the food must be eaten one bite at a time, and scientific research must be done step by step. The development of the aviation industry is not an overnight process. As he is still an undergraduate, he has limited resources and cannot maximize the efficiency of the system. ?At the same point in time in the previous life, Chang Haonan''s ambition was indeed to design a model that could equip the People''s Air Force to improve its combat effectiveness. But now that he has been resurrected and even has the help of the system, this J-7 improvement plan is of greater significance to him as a stepping stone. A stepping stone to a wider world. Therefore, in addition to showing a certain degree of advancement, the design plan must also be short, fast, and down-to-earth enough to be completed within the time specified in the course design assignment, and reflect one''s current overall understanding of the development of the aviation industry. Chang Haonan remembered that the teacher of his course was named Liu Hongbo. He was a very young professor. Shortly after the start of the next semester, he was seconded to participate in the airworthiness certification and technical improvement work of Y7-200A, which was later the MA60 passenger aircraft. . ?The time is just after the end of their graduate student promotion process. So many of Professor Lius students also directly or indirectly participated in related work. They are all opportunities. What Chang Haonan needs most now is exactly this kind of opportunity. After determining the basic principles of the improvement plan, Zhang Man was the first to speak. "Brother Nan, I just checked some existing ideas for improving the MiG-21 or J-7 in the library." Zhang Man said, putting his schoolbag and cloth bag on the table, and then took out a lot of material. "The first is the improvement plan our country has already had, which is to replace the large delta wing of the MiG-21 with a double delta wing, reduce the average chord length of the wing, increase the aspect ratio, and focus on improving the aircraft''s mid- and low-altitude maneuverability. However, because The air intake has not been improved, so the nose cone still does not have enough space to accommodate the radar, so let alone beyond visual range, it does not even have all-weather combat capabilities. " ? Zhang Man pulled out a three-dimensional view of the J-7E and placed it in front of Chang Haonan - it was active equipment after all, and detailed design drawings were unavailable. Then he secretly glanced at the latter''s expression with his peripheral vision. ?After discovering that there was no change, Zhang Man decisively pushed the drawing aside and took out another document. This one was much more detailed and even contained a lot of specific data. "The second one is the MiG Design Bureau''s own improvement, that is, the MiG 21MF and MiG 21 Bis. While the overall aerodynamic layout remains unchanged, the body is enlarged, the intake nose cone is increased, and a radar is installed inside. However, The price is that mobility will be greatly reduced. I think this idea is good. Zhou Shuwan stood up and looked at the drawings on the table. "In the late 1980s, we also designed a J-7C with a similar idea, but in the end only a dozen were produced. I think we can improve it on this basis, further increase the size of the nose cone, and add the current radar The technology is definitely stronger than it was back then, and it is even possible to launch radar-guided air-to-air missiles like the PL-4. In 1996, the Thunderbolt 4 had already been discontinued, and the Thunderbolt 11 was still in the difficult process of imitation. However, this did not prevent students from the Aeronautical and Astronautical University from dreaming of a new weapon with a longer range. However, Zhang Man next to him confirmed through Chang Haonan''s expression that this was not the idea the other party wanted when the latter was only halfway through speaking. Therefore, as soon as Zhou Shuwan finished speaking, she immediately expressed the opposite opinion: "I think this is not in line with the idea that Brother Nan just put forward. There are too few changes to the aircraft. Choosing this option really looks down on us. Brother Nans ability. And Zhou Shuwan, who was still in high spirits just now, was directly denied by his goddess without any shame, and even got involved in the recognition of Chang Haonan''s ability, so he was embarrassed on the spot and looked at Zhang Haonan. Man, then looked at Chang Haonan who frowned slightly next to him. Originally, when Zhang Man took out a lot of information and started sorting out his ideas, Chang Haonan''s impression of her had actually improved greatly. Not to mention whether it was useful, but at least she showed that she would take the initiative to help you with things. I don''t mean to stand by and watch. But her subsequent words and deeds quickly destroyed the positive image she had finally built up in Chang Haonan''s mind. You should know that although this big assignment is a group of four people, when it comes to grading, not everyone in the group will get the same grade. Instead, the group assignment will be graded based on the contribution of each member to the work. float. Chang Haonan, who has been identified as the big player, and Wu Yifan, who is already ready to paddle and does not care about the results, naturally rank at the top and bottom of the contribution rankings. Therefore, the only room for discussion is who ranks between Zhang Man and Zhou Shuwan. two. Whether it''s flattering or charming, these are all part of a person''s abilities. Chang Haonan himself is not good at this, but he will never look down on people who are good at it. As for the emotional problems between Zhou Shuwan and Zhang Man, that has nothing to do with him. Its okay to be an outsider. ??But just now, while Zhang Man was flattering him by watching his words, he also didn''t forget to step on Zhou Shuwan secretly. This nature was different. ??If Chang Haonan directly expressed his agreement with Zhang Man''s idea at this time, it would be equivalent to being used as a weapon by the latter. It is true that Zhou Shuwan is an honest person, but an honest person cannot be bullied like this. This will affect unity. (End of this chapter) Chapter 7 The plan is finalized【Kneel down and beg to read】 Chapter 7 The plan is finalizedKneel down and beg to read On the contrary, the reason I dont choose this option is that it changes too much. Chang Haonan''s words made Zhang Man''s smile freeze on his face. "Remember what I just said? It needs to be based on existing mature technology. Although this enlarged version of the solution does not seem to change much in appearance, if it is implemented in manufacturing, the entire body will have to change, and a stronger aero engine will be needed. , This is not in line with our principles. Zhou Shuwan''s face next to him finally looked a little better. He didn''t care much about his idea being rejected, but he was just worried that Chang Haonan really misunderstood him. "After all, we have received some professional training. When we see a design drawing, we can''t just rely on intuition to see the appearance like we did when we were freshmen. We should be able to think of something deeper." After Chang Haonan said this, he looked up. Zhang Man glanced across from him. "Hey, I can see something profound. It''s not like you don''t know. I haven''t passed 80 points in any professional courses except English. For technical matters, just listen to Nanshen. Zhang Man, what are you doing? Is there any other plan?" ?Wu Yifan''s words were just right to ease the situation, which not only gave Zhang Man a step down, but also prevented the relationship between her and Chang Haonan from getting too tense. ?After being beaten a little by Chang Haonan, Zhang Man quickly returned to his original bright and bright expression, as if nothing had happened, but he did not make any small moves and just pulled out the last piece of information. In fact, compared with the previous two real materials, what Zhang Man showed this time was just two photos. "There is another one here. It is a technical verification aircraft of the MiG Design Bureau. It is called Ye8. There is no detailed information. From the photo, it seems that the nose air intake has been directly changed to the belly air intake, and additional A pair of front wings Before Zhang Man finished speaking, Chang Haonan directly picked up one of the photos and looked at it. The Ye8 aircraft itself has more changes than the MiG-21, and also involves the issue of three-wing surface control. It is also not a design that can be completed in a short time, but the pictures on the table helped him recall a kind of J-7 The unpopular improved model - J-7FS. An improved design that changes the nose air inlet of the J-7 to a mandibular air inlet, but leaves the rest of the fuselage, especially the rear fuselage, unchanged. Since this project was completely self-funded by 611 Institute and had no initial users, and the research on the mandibular air inlet was not in-depth enough at that time, only one prototype was built for flight testing and then nothing happened. ?However, Chang Haonan knew that the potential of this improved model was actually quite large. ??More importantly, the research on the mandibular air inlet itself is of great significance. Because future air-breathing hypersonic aircraft will also use similar but more advanced air inlets. ? Before Chang Haonan was reborn, he was preparing to test a hypersonic missile design using a mandibular three-dimensional inward inlet at Base 29. According to the timeline, this modification should not have been released in 1996, or it might not have even started. Improve the air inlet design of the J-7 aircraft so that it can adapt to larger-sized radars and ensure that the flight performance is at least not weaker than the original model. The specific idea is to change the nose inlet to a dual-module mandibular inlet to free up space in the nose for the radome. At the same time, the radome can be used as a conical front body and integrated with the air inlet to achieve The first-level compression of the flow is a downward-directed external compression method. The inlet duct achieves two-stage compression of the airflow, which is an internal compression method directed toward both sides and upwards, while the rest of the body remains unchanged. " As Chang Haonans ideas continued to improve in his mind, the system also gave new prompts: Consumption of science and technology points for improving the project: 8 points, 80 points for directly giving project results. Are you sure to carry out the J-7 aircraft inlet improvement project? "Confirm!" Almost the same as yesterday, the moment after Chang Haonan confirmed the project, a large amount of information appeared in his memory almost in the form of imprints. Although he had not been exposed to a lot of knowledge for many years, But it feels as if it has been used thousands of times before. In other words, the system can not only provide specific steps to complete a project, but can even improve Chang Haonan''s related abilities at the same time. ? And this ability will not disappear with the completion of the project. For example, the ability he acquired yesterday to skillfully operate the fluid dynamics simulation software of this era and directly write programs in Fortran language to solve partial differential equations still exists. ? It''s just that if you want to achieve the inhuman operation with incredible efficiency like yesterday, you still have to rely on the buff provided by the system for the ongoing project. "Haonan, are you going to choose this one?" Zhou Shuwan also took another photo and looked at it: "But isn''t the design change of this three-wing surface even bigger?" No, its just that the idea is similar to this. Chang Haonan shook his head Ye8s plan has the air inlet designed in the belly of the fuselage, which has resulted in a major change in the entire body structure. We can advance the air inlet to a position almost flush with the bottom of the nose and design a mandibular air inlet. Chang Haonan took a pen and paper and drew a simple diagram, and at the same time expressed his design ideas in as simple and popular a way as possible. "This can ensure that the length of the air intake is close to the original design, and the part after the 1 cross-section of the body does not need to be modified, and we can also use the radome as part of the air intake mechanism for the overall design, consisting of a conical radome Pre-compress the gas to improve the overall air intake performance." The reason why these words are wasted is naturally not due to Chang Haonan''s attribute of being a teacher. Rather, according to the design method provided by the system, one first needs to manually determine the half-cone angle of a cone-shaped precursor, and then the corresponding inlet design can be calculated. Optimal solution. In other words, the inlet/cone front body combinations designed under different half-cone angles are quite different. ?However, Chang Haonan does not know how many half-cone angle corresponding design solutions will work best after being installed on the J-7. In the field of design, choosing initial values ??depends largely on experience, but Chang Haonan, as a military screw before his rebirth, had no experience in mastering the overall design of a model... So he needs to make several different plans, simulate their performance when combined with the J-7 body, and then explore the rules, and finally find the best performance option. ?This process involves a lot of work, but a lot of it is actually repetitive work with little innovation, so it can be completed by three other people, while Chang Haonan himself concentrates on the most critical part. Firstly, this can improve efficiency, and secondly, it is in line with his vision of the future use of the system, so it can be regarded as a preview. This way the workload is indeed much smaller, and many parts can even be used in common with the original model. ?Zhou Shuwan hammered his fist on the palm of his other hand, making a crisp sound: "Haonan, please tell me what to do next. We will all obey your command!" Thanks to [asking jung] for the 1,000 starting coins Thanks to [Tongle Piti] for the 500 starting coins and 1 monthly pass Thanks to [fhtvbn] for the 2 monthly passes (End of this chapter) Chapter 8 A whole new approach to design! 【Kneel down and beg to read】 Chapter 8 A new design method! Kneel down and beg to read ?At this moment, the classroom door was pushed open, and four more people walked in from the outside. This teaching building is shared by their entire School of Aeronautical Science and Engineering, so it is not surprising that there are other students in the classroom. If it is before the end of the semester, there may even be twenty or thirty people in the same classroom at the same time, so they are concentrating on their research. The four people involved in the plan didn''t care at all. Haonan? The leader of the four people who just came in was Chang Haonans upper bunk Huang Zhiqiang. Naturally, he recognized the former at a glance: You are also doing course design here? In fact, Huang Zhiqiang came here specially. Since the beginning of the semester in March this year, Chang Haonan has been bitter and resentful. Almost everyone in the dormitory knows that he wants to design a fighter jet. ??But for Huang Zhiqiang, Chang Haonan in that state is not worth worrying about. He knows very well where the opponent''s upper limit is, and a person''s ability will not be improved because of anger. And he didn''t think that was anything to be angry about. ?However, Chang Haonan''s uncharacteristically light-hearted attitude this morning made him feel a little uneasy, so he decided to "reconnaissance" to see how far the former had achieved. "Yes, Lao Liu''s class is not sloppy..." Chang Haonan did not raise his head, but continued to draw a sketch of the air inlet and the nose part on the paper, preparing to tell the other three people what they needed to do. matter. In addition to the 10 credits of the aircraft design course, which is second only to the graduation project and will greatly affect the average grade point, Liu Hongbo will also invite many big names in the college to serve as judges in the defense session of the final course design. . ?These people are often also the judges during the admission interviews for graduate students who are exempt from examination. There is usually only about a month between the two events. So any student who is interested in further study must devote 120% of his energy to this course. The four people who just came in put the tools and books they brought on a table not far away. Then Huang Zhiqiang, the leader, slowly walked over to Chang Haonan: "By the way, how far have you progressed?" The design plan has just been selected, so its early. ?Chang Haonan still didnt look up. ??He really had no impression of Huang Zhiqiang, and he didn''t take him seriously at all. What I want to say next are just some preliminary parts of the design work, so I dont care about being heard by others. And whether you can understand it or not is just a matter of words! Zhang Man, on the other hand, was very wary of the approaching Huang Zhiqiang, and quietly took a step to the side, blocking the latter a few steps away from the table. ? Huang Zhiqiang tried several times, but because the aisle between the tables and chairs was so narrow, he was ultimately unable to get over the obstruction. "cut" Although there was no way to take another step forward, the petite Zhang Man could not block his view. Huang Zhiqiang easily saw the two black and white photos on the table and the sketch that Chang Haonan was drawing by hand, so of course I think this is preparation for reproducing the design through photos. ?This immediately made him feel relieved again, he shook his head and turned to leave. "Sure enough, big trash can only teach little trash. In the end, you have to copy it from the Soviets. Besides, aircraft design is not a sketch. What can you design based on two photos?" Huang Zhiqiang thought to himself, and sighed that he had just Some are too unfounded. At this time, Chang Haonan didn''t know that he had been scolded by others. He had already finished drawing two schematic diagrams and took another piece of paper to list the steps on it. The other three people also quickly took out their notebooks and pens to take notes. They still remember the way the second-year Ph.D. student, whose tutor is an academician himself, obediently took notes in front of Chang Haonan yesterday. "The process is roughly like this. Because we are integrating the air inlet and the front fuselage, I will first select five different design initial values, which are the cone front body, or the half cone of the radome. "Angle." Chang Haonan pointed to the tip of the radome on the sketch and marked it with an alpha symbol: "What the three of you have to do is help me determine the design parameters corresponding to each initial value." ?More than twenty years later, this process can be completely handed over to computers, but at this time, at least under their current conditions, many things still have to be calculated by hand, especially the relevant engineering manuals. Zhou Shuwan and the other three nodded like chickens pecking at rice. Here are the steps. Ill explain them first. If you dont understand anything, be sure to ask. ?Chang Haonan said and wrote (1) on the paper. The first step is to set the cone precursor busbar, fix the initialization half cone angle and perform dimensionlessization according to the cone length. "The second step is for me to do. Average the flow field Mach number in the area near the inlet entrance as the baseline flow field design to calculate the Mach number. Because this is still an airplane after all, so the subsequent design points should be Choose around Mach 1.6, not too high. The third step is to take the intersection of the three-dimensional internal transformation line of the inlet duct in the longitudinal symmetry plane of the cone precursor and the generatrix of the cone precursor as the installation positioning point, and calculate the axis of the incident inner cone shock wave in the inlet duct and the relationship between the axis of the cone precursor and the cone precursor The angle between the axes is used as the installation angle of the air inlet, and the specific calculation method is..." In the fourth step, the shape of the upper lip of the inlet is obtained by the intersection of the inner cone shock wave incident on the inlet and the lower surface of the cone precursor, and the shape of the inner lip is obtained by the intersection of the incident inner cone shock wave of the inlet and the lower surface of the cone precursor. The intersection of the longitudinal symmetry planes gives..." The fifth step is also done by me. Based on the three-dimensional shape of the inlet entrance, streamline tracing is performed in the selected reference flow field to generate the internal profile of the inlet..." "The air inlet calculated according to these five steps is theoretically the optimal design at the half-cone angle. As for which of these designs is more effective after being installed on the MiG-21 fuselage, we need to do what we did yesterday. Im going to do a CFD simulation. When the time comes, Ill run out the results, and you guys will be responsible for organizing the data and making charts, so we should be able to find the optimal solution intuitively. ?Of course, among the steps given by the system, there is a process of going to the wind tunnel at the end, but Chang Haonan simply ignored it. ??If he could directly apply for resources like a supersonic wind tunnel, would he still be able to modify the J-7 here with three undergraduates? ?After Chang Haonan wrote the last step on the paper, he threw the pen aside, stood up and looked at the three teammates in front of him: "Do you understand?" ?There was a moment of silence "Well...I understand some of it, but I''m not sure what I didn''t understand about the parts I didn''t understand." Zhou Shuwan scratched his head with a troubled expression: "Let''s go to the library first, and then we''ll start calculating first. If I cant figure it out, Ill ask you again. "Okay." Chang Haonan nodded, and then packed his things on the table into his bag. Zhou Shuwan helped Zhang Man sort out the large amount of information she brought almost out of habit. The four of them Get up and leave quickly. ??This classroom is not very large, and Chang Haonan did not deliberately lower his voice when he spoke, so the four Huang Zhiqiang sitting next to him also heard the content clearly. Brother Qiang, did you hear what Chang Haonan and the others were discussing just now? One of them approached Huang Zhiqiang and asked in a low voice: What do you mean, they seem to have some ideas? ?Hong asked this question, Huang Zhiqiang frowned and glanced at the teammate next to him with some displeasure. He didnt understand either! (End of this chapter) Chapter 9 There is also a gap between academic masters! Chapter 9 There is also a gap between top academics! When Chang Haonan first started talking, Huang Zhiqiang didn''t actually pay attention, but soon he realized that the other party was definitely not someone who had "just selected a design plan", but had already determined the specific design steps and calculation ideas. . As for the subsequent calculation steps, since Chang Haonan explained it with his own hand-drawn sketches, Huang Zhiqiang, who could not see the pictures, was naturally completely confused. Not only that, he has never even heard of many of the terms Chang Haonan said! "I think some of them are just talking nonsense..." Another person in the group whispered: "I have never heard of a lot of things he said in class." After hearing these words, Huang Zhiqiang''s face finally looked a little better. I only heard them talking about things like the cone front body and the air inlet, which seemed to be somewhat interesting... Liu Ran was sitting slightly closer to Chang Haonan and the others, but he still heard a few key words. Hearing this sentence, Huang Zhiqiang suddenly remembered that when he was reading the English design manual before, he seemed to have seen similar content in it. ?Thinking of this, he quickly took the book out of his bag and quickly flipped through the pages. Holy shit, Brother Qiang is still awesome, its all in English, I can understand this. But at this time, Huang Zhiqiang turned a deaf ear to the compliments around him, and just lowered his head and quickly flipped through the book. An integrated design method of finlet and conical fore body Thats it! Huang Zhiqiang quickly turned to that part of the book based on his memory. "The integrated design method of the inlet and cone front body was first applied by Webster and Bucy in the design of supersonic cruise missiles and achieved very good results. However, the design method is still not mature enough and requires a lot of computer simulation. Simulation is very difficult..." Seeing this, Huang Zhiqiang''s eyes widened instantly and his pupils trembled. He quickly turned to the next pagethere were some basic design ideas and steps written there. ?After spending a few minutes translating the awkward and difficult English in the book, Huang Zhiqiang realized that the content above was probably consistent with what Chang Haonan just said. ?Obviously the other party is not making nonsense. "How is it possible?" Huang Zhiqiang''s breathing suddenly became heavy, and he said to himself in an unbelievable tone. This is a design idea that is said to be very difficult and immature in design manuals from the United States! When Huang Zhiqiang saw it at the time, he thought that no one in the whole of China would have thought of such an ingenious design method, and probably no one would have the ability to conduct the computer simulation required for such a design. ??But just now, Chang Haonan, an ordinary undergraduate student at Beijing University of Aeronautics and Astronautics, explained the design process very clearly, and it was even more complete than the content in the manual! And at the end it seemed to be mentioned that he had conducted a CFD simulation yesterday? Huang Zhiqiang is naturally familiar with such computer-aided design tools and probably knows how much work is involved. "This...this is impossible..." Huang Zhiqiang muttered to himself again with trembling lips, and then turned to look in the direction where Chang Haonan and the other four left just now, his eyes full of doubt. But when he focused his attention back on the book again, he suddenly became happy again - the last sentence in the book said that there is currently no very accurate way to obtain the capture area of ??the air inlet and the three-dimensional dimensions of the entrance in the integrated design. shape, so this step still relies heavily on experience. It is obviously impossible for Chang Haonan and other undergraduates to have experience in this field. So even if you design a similar shape, it can only be regarded as a semi-finished product at best, or you can just draw an air intake structure and it will not get high scores. Huang Zhiqiang knows very well that what Professor Liu Hongbo hates most are students who are clearly lacking in ability and refuse to keep their feet on the ground. Forget it, lets finish our design first. Huang Zhiqiang took a few deep breaths, forced himself to be calm, and then took out various materials and tools from his bag. ? Their team is planning to design a twin-buoy light seaplane based on the Pilatus PC-6 aircraft, which can be used for tourism, fishery management, water patrol and other tasks. The reason why I chose this was mainly because the book Huang Zhiqiang got contained an identical design case, and the calculation steps only needed to be slightly refined. ?According to his idea, this design should be enough to stand out from a bunch of works that are essentially just semi-finished products or aircraft models. The other side. Noise is naturally prohibited in the reading area of ??the library, but the library of Beijing University of Aeronautics and Astronautics has set up some separate small classrooms around the reading area, where meetings or group discussions can be held. At this time, Chang Haonan and the four of them were Sitting inside, there are various engineering calculation manuals from the library on the table - in this era when even calculators are not very popular, various empirical coefficients in engineering calculations, and even approximate values ??obtained by commonly used square root operations You need to look up books to get the solution. ?One afternoon passed, and under the guidance of Chang Haonan, except for Wu Yifan, who had a very weak foundation, the other two people finally managed to master the calculation method of the entire process. "I..." Wu Yifan scratched his head and felt a little embarrassed that he could not play his role: "Well, you just leave all the writing and drawing work to me. I am really not good at calculating these things." In this era, even graduation thesis has to be written by hand, let alone this kind of course design, so the final design plan and design instructions must be implemented on paper, and Wu Yifan happens to be able to write beautifully with a pen. ?This is one of the reasons why he has hardly studied since his freshman year but has never failed a class. ?Chang Haonans own workload is determined, so the remaining work content is distributed among the other three people. So he looked to Zhou Shuwan and Zhang Man for advice, and the latter two said there was no problem. "It''s already very late today. Do you want to go out for a meal? I''ll treat you." Wu Yifan looked out the window at the darkening sky and touched his stomach. All three of them looked at Chang Haonan. Okay, thats it for today, lets go eat. Chang Haonan also knows that too much is too little, and besides, there are still more than three weeks until the course design deadline, so there is really no need to worry. More importantly, he was hungry himself. ?Ten minutes later, four people appeared in a roast duck restaurant next to the school. "Speaking of which, Brother Nan, why didn''t you pay attention when you were explaining your ideas to us in the afternoon? Huang Zhiqiang and the others have been eavesdropping, and I found out." After ordering, Zhang Man asked with an unhappy look on his face: "Those people are really outrageous." "Eavesdropping, you have to be able to understand it!" Chang Haonan was immediately happy: "I told you directly in front of the sketch, did you understand it at that time?" "I..." Zhang Man showed a somewhat embarrassed expression: "I don''t understand, but you are different. You are all top students. What if he understands it and then copies our design?" "Huh..." Chang Haonan shook his head in an incomprehensible manner and replied slowly: "There are also gaps between top academics." (End of this chapter) Chapter 10 J-8 vs. F22? Chapter 10 J-8 versus F22? ?Although Chang Haonan himself just said it casually out of emotion, for the other three people, this was simply pretending to be invisible. There was a burst of applause and cheers in the private room. Nan Shen is awesome! Nan Shen Haki! ?Chang Haonan quickly reached out and pressed it down to show his low profile. In fact, in less than two days from his rebirth yesterday to today, he has found that not only is he physically much younger, but his mentality seems to be closer to that of a twenty-year-old than a forty-year-old. "I''m really young again..." Chang Haonan looked at his wrinkle-free hands and finally had a sense of reality about rebirth: "Then go and make up for those regrets, whether it''s the country''s or your own. of." At this time, Zhou Shuwan suddenly reached out and patted him: "Nan Shen, don''t think about curriculum design while eating. The development and construction of the army does not miss a meal." Chang Haonan came to his senses and realized that the roast duck had already been served. Obviously, the other party thought he was still thinking about the plane. ??If there is any advantage in the 1990s compared to more than 20 years later, it is probably that the Beijing roast duck of this era is generally not as bad as it was later. The taste of any restaurant can be guaranteed. ?Of course, the price is really exaggerated. It is basically difficult for people like Chang Haonan, whose average monthly living expenses are less than 200 yuan, to afford it. ?The four of them were chatting while eating, and the content was naturally mainly about various anecdotes and gossip. Chang Haonan just listened most of the time, and only rarely would interject. After all, these are just things that happened in the past for the other three people, but they are already quite distant memories for him. ?At a certain moment when the four of them were silent, Chang Haonan clearly heard the conversation coming from the private room next door. Hey, have you heard about it? The new generation fighter jet from the United States, the F22, seems to be about to make its first flight. One sentence instantly attracted the attention of Chang Haonan and Zhou Shuwan. ??And since the two big guys in the group were not ready to continue chatting, Zhang Man and Wu Yifan naturally did not continue talking. Isnt it several years since its first flight? Another slightly deeper voice said. That is the prototype YF22. It is said that the one that will fly for the first time next year is the mass-produced F22. I estimate that it will be put into service soon. A third, somewhat sharp voice explained. "Well, then... looking at the situation at the beginning of this year, we can''t even deal with the third-generation fighter jets F14 and F18. If this new generation of fighter jets enters service, wouldn''t it be... that the gap is even bigger?" It was the deep voice that spoke again. person, but this time there was some anxiety in his tone. Should our countrys latest fighter jet be the J-7E from 1990? "Yes, but that plane doesn''t even have a radar. It can only fight during the day, so what''s the use?" The first person who spoke just now burped after saying: "The only ones who can fight beyond visual range are from the old school. The Su-27 my brother bought was too little, and the J-8B was not much either. Then there was a sigh. "Let me tell you, if the J-8-3 can be put into service in two years, with its high-altitude and high-speed capabilities and new radar, it may not be able to compete with the new American aircraft!" Just dream, no matter how much improvements are made to second-generation machines, if you can barely beat a dozen third-generation machines, youll be considered worthy. "But... even if we can fight one more, this was not the case back then. From the War of Resistance to the War of Resistance to the Aid to Korea, we never took advantage of the equipment." "The Air Force is different after all. During the War to Resist US Aggression and Aid Korea, our MiG-15s fought against F86s, although The pilots are inexperienced, but at least the aircraft are of the same generation. The United States even has equipment like the F9F that is not as good as ours. ?Two days ago, Chang Haonan was still in an era where the WS15 had been installed on the J-20 for test flights. At this time, he suddenly heard the talk of the J-8 fighting the F22. There was even a vague sense of time travel. It took him a moment to realize that this was not a trance. "How come our country''s aircraft manufacturers can''t even build a third-generation aircraft? After spending so much taxpayers'' money, the pilots still have to fly the J-7 to compete with others with bayonets. What a coward! What a bunch of losers..." Thats right, it was a pity that the F16 was not introduced back then. Then F16/J79 is just a monkey version. Its no pity. Americans are not good at all ??The voices chatting next door were already slightly drunk. ?Chang Haonan saw Zhou Shuwan''s fist clenched suddenly, and then slowly loosened. ??The words of the people next door were very unpleasant, but from their conversation it was clear that they did not hate the Kuomintang, they were just disappointed or even despaired because they saw the huge gap between them and their powerful enemy. ??Although the topic there quickly switched to the upcoming Atlanta Olympics, the atmosphere among the four Chang Haonan was still somewhat affected by this. Nan Shen, you said that if the F22 enters service immediately, what measures can we take to deal with it? Zhou Shuwan drank the beer in the cup in one gulp and turned to Chang Haonan and asked. "It''s not that fast." Chang Haonan shook his head and said in a very confident tone: "The difference between the YF22 and the F22 is very big, and after all, it is a new generation of fighter jets. Even the old Americans have to learn a lot of things little by little. Historically, the F22 did not officially enter service until 2005. At this time, China''s military industry had actually passed its darkest moment. However, in the nearly ten years before that, the Raptor in a test flight state had put great pressure on China. Indeed, a little bit is a lot. Sigh I hope so. Zhou Shuwan sighed. Dont worry, there will be, there will be. Chang Haonan patted the other partys shoulder: So arent we working hard for this? Wu Yifan and Zhang Man did not participate in the discussion throughout the whole process. The former really did not understand these matters and could not intervene, while the latter was completely unable to empathize with the emotions of Chang Haonan and Zhou Shuwan. Zhang Mans parents are not well-educated, but they have been doing business since the late 1980s, and the family is not short of money. However, in this era, being rich does not mean being knowledgeable. Therefore, from the first day she went to college, she only thought about one thing - how to use the platform of Beijing Airlines to climb higher and see a wider world. In the world, it is best to go abroad. But studying abroad, at least in 1996, was not a matter of having enough money. Of course she could accept it at her own expense, but if she didn''t have the means, she wouldn''t be able to spend it even if she had money. That''s why Zhang Man chose to cling to Zhou Shuwan''s lap in the past few years, just to get good grades and find ways to get recommendation letters from the school. She could not understand why some people would view the United States as an enemy. ?Of course, although he thinks so in his heart, Zhang Man will certainly not be stupid enough to say it. He even nodded in agreement from time to time when Chang Haonan and Zhou Shuwan were talking. In the past few years, she had completely mastered Zhou Shuwan in this way. Chang Haonan certainly seemed more difficult to deal with, but it was already the second semester of his junior year anyway, and Zhang Man only needed to ensure that he scored 10 credits in aircraft design. Just get good grades in the course. The time to decide whether to graduate or study abroad is between the end of your junior year and the beginning of your senior year. Therefore, the scores for the graduation project with the highest credits in your senior year and several other courses are not important. (End of this chapter) Chapter 11 Senior sister suspects that life is over [please read] Chapter 11 The senior sister suspects that she is alive [seeking for follow-up reading] In the first half of 1996, even the security situation in Beijing was not very good, so they did not eat too late and left the hotel before eight o''clock. Wu Yifan went to the house he rented off campus, and the other three Naturally, people go back to school together. In university dormitories in the 1990s, entertainment activities were far less abundant. Chang Haonan remembers that there were a few roommates in his dormitory who particularly liked playing cards. Except for a period of time before the exam, they basically had to play cards every night. So he did not choose to go back to the dormitory directly. Instead, he went to the public phone booth and called home. Chang Haonan almost cried when he heard the voices of his parents when they were young again. ?In order to prevent the second elder from hearing anything unusual, he hung up the phone without chatting for too long, saying that he was going back to the dormitory to rest. ?It took almost ten minutes for Chang Haonan to finally calm down and then decided to go to the library again. ?This time it is not for course design, but there are several newspaper racks in the rest area of ??the library, which will provide the latest newspapers and magazines. Having just been reborn, he has basically no memory of recent events, and there is no developed Internet in this era, so that is the most convenient place to get news. A few minutes later, Chang Haonan moved a stack of newspapers and sat on the bench next to him. ??He only needs to know a general idea of ??something when reading the news, so that it doesnt seem strange to know nothing. Therefore, he gulps down the news and flips through it very quickly. The aftermath of the incident at the beginning of the year is still lingering, and many news reports are still related to it. Some military publications are comparing the military power between China and the United States. In this era, the results naturally need not be said. Multiple shootings occurred in succession last month. The last module of Mir, the Nature module, was launched into orbit and successfully docked, completing all construction work of the space station. They are all very contemporary content. ?Just when Chang Haonan saw the crash of Valuje Air Flight 592, a familiar voice suddenly came from behind him. Junior Chang? You look very relaxed today? He turned around and found that it was Yao Mengna, the senior sister he had met in the computer room that day. "It''s about combining work and rest. Students in our new era have to read books about sages and see things outside the window." Chang Haonan looked up at his watch and found that it was almost 10:30 pm when the library closed, so he stood up and turned around. He put the books and newspapers back into their places one by one, then put on his bag and left the library with Yao Mengna. ?The total distance from the newspaper area to the library entrance was less than 20 meters, and Yao Mengna secretly glanced at Chang Haonan no less than five times. She came here today to find some information about CFD simulation. A project being carried out by the research team was not going well. She and two other people tried for a long time but failed to find an efficient calculation method. So when she saw Chang Haonan just now, Yao Mengna almost subconsciously walked over and said hello. Subconsciously, she thought that this junior undergraduate student might be able to solve this problem. But when the question came to her lips, Yao Mengna still hesitated. First of all, the problem this time was much more complicated than the previous simulation that Chang Haonan conducted in the computer room. Secondly... Chang Haonan really caused her huge psychological trauma last time. ?However, in the end, she decided to temporarily put aside her own dignity issues for the sake of the research group''s project. Junior, can I ask you a question related to computational fluid dynamics? After hearing this question, Chang Haonans first reaction was disappointment. ??He originally thought that Yao Mengna noticed his handsome appearance and kept peeking over here, but it turned out that the other party was attracted by his inner wisdom. Why cant it be more superficial? ?However, he nodded calmly: "Okay, let''s talk." "I am studying an aeroelastic instability problem that considers large geometric deformation factors for the aircraft wing, but it is very inefficient to solve the N-S equation and the Euler equation using a similar idea to your day, and we have tried several results, The error is also relatively large..." "Wait a minute." Upon hearing this, Chang Haonan raised his hand and interrupted Yao Mengna''s question: "What kind of wings are they?" "Uh..." Yao Mengna was stunned: "I just want to ask about the simulation idea. Does this have a big impact?" "There is a huge difference between a delta wing, a swept wing and a straight wing with a high aspect ratio." Chang Haonan replied expressionlessly: "Of course your research group may have confidential topics, if it''s not convenient to tell me... " "There''s nothing inconvenient about making the project public!" Yao Mengna clearly understood what Chang Haonan meant, and immediately didn''t care whether she was a junior or not. It is a straight wing with a large aspect ratio. We also tried to improve the Dewey-Hodges equation, but the results were not ideal either. "That''s normal." Chang Haonan shrugged, as if it were a matter of course: "The aeroelastic instability problem of a large aspect ratio straight wing is most likely a flutter problem. Computational Fluid Dynamics (CFD)/Computational Fluid Dynamics (CFD) The structural mechanics (CSD) coupling method is not suitable for this aspect of analysis. Wing flutter has become a fatal problem almost since the birth of aircraft. It is a self-excited vibration of the structure caused by the interaction of aerodynamic force, elastic restoring force and inertial force. That is to say, once flutter occurs, it is a self-continuous movement without the action of external force, and the vibration amplitude will become more and more severe, usually causing irreversible structural damage to the aircraft within a few cycles. ? This problem is especially obvious on large aspect ratio wings. "This..." Yao Mengna opened her red lips slightly and looked at Chang Haonan beside her. She thought about countless possibilities, but she never expected that she would go in the wrong direction from the beginning. And such a mistake was pointed out by an undergraduate almost without thinking. ?Her entire worldview was almost shaken. For a moment, Yao Mengna even began to doubt whether she had ever attended this university. Chang Haonan quickly spoke again: "The large aspect ratio wing can be regarded as a beam wing in structure, so the unsteady aerodynamic force can be calculated by the dipole grid method based on subsonic speed. According to the linearization theory, the unsteady linear small perturbation velocity potential One of the basic solutions to the equation is the acceleration potential dipole. Therefore, for a wing that vibrates simply harmoniously in the airflow, an acceleration potential dipole p/p can be distributed on the wing. At this time, the normal value on the wing is The washing velocity amplitude must satisfy the corresponding vibration boundary conditions, so that p can be solved. Of course, this method is only suitable for linear problems. Chang Haonan, who noticed Yao Mengna stopped, also stopped and looked back at her: "Do you understand?" This tone again Yao Mengna''s breathing suddenly became heavy. His fists are hardened. but Skills are not as good as others, and you are willing to be inferior. She finally chose to reconcile with herself. Understood, since we have to use the dipole grid method, wouldnt it be better to use the MSC.NASTRAN software? Yao Mengna was able to deeply participate in the big project of the research group in the second year of her Ph.D., so she is certainly not an ordinary person. Before, she was just the tip of the iceberg. Besides, the dipole grid method is not a new theory. Now that she is awakened, she quickly understands it. understand Chang Haonans meaning. She felt that she should have found a way. It seems that my college experience has not been in vain... Yao Mengna comforted herself in her heart. However, Chang Haonan''s next sentence poured cold water on her newly ignited hope: "The default MSC.NASTRAN should not be easy to use. If you really want to do it well, I''m afraid you need to modify it with DAMP language rules. The solution sequence provided within the software can only be developed through secondary development, but if I cant see the actual problem, I probably cant tell you anything more specific. ?Yao Mengna looked up at the bright moon in the sky. Although it was already late May, she felt that her mood could be described in a lyric. ?Snowflakes are falling and the north wind is blowing ?The world is vast~~~ (End of this chapter) Chapter 12 Money making ability is also very important Chapter 12 Money making ability is also very important Chang Haonan actually had few classes in this major by the second semester of his junior year, so although the next day was a Monday, he still had half a day free in the afternoon. Zhou Shuwan and Zhang Man even skipped a lesson in the morning and calculated the design plan corresponding to the half-cone angle of the first precursor in the library. Therefore, after class, Chang Haonan went to the cafeteria for a simple After eating two mouthfuls of food, I took the calculation results and the student ID cards of four people and went straight to the computer room. However, things did not go as smoothly as Chang Haonan imagined. The next task is not difficult for him, but it is not easy for computers in this era. Especially the fifth step of the design work, which is to generate the internal profile of the air inlet, needs to be completely done by the computer. . So after he spent 4 hours on the machine today, he finally built the nose model of the first plan, without even having time to combine it with the fuselage. ??And the capacity of the two floppy disks that Yao Mengna lent them was already running low. After all, the capacity of each disk was only 2.88MB, and two of the project files would be full. "When I have resources in the future, I must get the USB flash drive out in advance. It''s so troublesome..." Chang Haonan, who was politely asked out of the computer room by the management teacher, shook his head and thought to himself. ??While having dinner in the cafeteria, Chang Haonan told the other three people about the situation. ?There is no problem in completing it before the deadline, but Zhang Man and Zhou Shuwan dont have to work so hard. Accordingly, considering that the time from completion of the design plan to delivery is very short, Wu Yifan, who is responsible for the text, needs to start early and complete the design work in parallel with Chang Haonan. ?Of course, the latter has the final say on what to write and how to write. Wu Yifan only needs to be a ruthless writing and drawing machine. ??While Chang Haonan was eating and assigning tasks, Yao Mengna was also chatting with two classmates in her laboratory about the progress of the project at another dining table not far from them. Although Chang Haonan made her doubt her life last night, as a doctor, her first reaction after encountering a problem she didn''t know was of course not to give up, so she went to the library today to borrow some information about the DAMP language and Occasionally. I also looked for some information on the Internet about the book on the pole grid method. Although it is definitely impossible to fully understand it in one day, I can at least confirm that this idea is worth trying. "Dipole grid method..." Sitting opposite Yao Mengna was a well-mannered boy with thick hair that didn''t look like a doctor: "Junior sister, are you really sure? Although the CFD/CSD coupling method we used before was very inefficient, After constantly revising the method, the accuracy has actually been continuously improved. When the project time was already over half, I rashly started over from scratch..." Fang Bo, we all know that there is no future in continuing to make small repairs according to the original idea. Yao Mengna put her chopsticks on the dinner plate, raised her head and looked at the boy named Fang Zhen in front of her. Although the accuracy is improved by 15-20% compared to the initial result, which can indeed be used to solve the problem, such a large amount of calculation requires manual parameter adjustment and calibration for each calculation example. In essence, it is to shoot the arrow first and then draw the target. It has no guiding significance for engineering practice. As scientific researchers, we should not be satisfied with this, especially now that I am sure that the dipole grid method is feasible, but we just need to learn some new things. Although Fang Zhen, who has a PhD in his third year, looks to be only one year older than Yao Mengna, who has a PhD in his second year, the latter skipped the master''s stage and studied directly for a doctorate, so Fang Zhen is actually much older. ?However, when it comes to matters related to research, let alone senior brother, even when facing mentor Yao Mengna, she will never give in easily. Seeing such a posture, another short and thin girl next to him quickly changed the topic: "Speaking of which, Senior Sister Yao, how did you suddenly come up with this new idea? I have never heard you say it before, just look at you I brought back a bunch of books from the library today." Compared with the two Ph.D.s Fang Zhen and Yao Mengna, the girl named Xia Tian is only a first-year master''s student. It doesn''t matter which technical route she takes. The top priority is to stabilize the two pillars of the team. They must not be allowed to get angry. ?However, this casual question made Yao Mengna freeze on the spot. "Yes... I asked about it from a senior who happened to have done a similar project before." Yao Mengna took a deep breath and touched the tip of her nose and replied. Originally, Yao Mengna was not a face-conscious person, so it was nothing to say that she heard it from her junior students. But firstly, this doesnt seem convincing enough, and secondly... Chang Haonan''s tone, like that of a teacher treating a primary school student, really made her unbearable. "Senior? Are there other research groups in our school working on similar projects?" Fang Zhen was also stunned. You must know that in these days, even undergraduates are rare, and the number of graduate students is even less. Between research groups in a college They all know a little bit about each other. "Oh, he was my senior when I was an undergraduate. He is no longer at Beijing Airlines." Yao Mengna had to bite the bullet and continue to make up. Fortunately, neither Fang Zhen nor Xia Tian asked further about this issue. "Then let''s do this. Junior sister Xia Tian, ??you can take over the CFD/CSD work. Anyway, Yao Bo and I have already set up the framework for this. All we need to do is follow the steps. The two of us will try to see if we can get through the dipole. "The grid method." Fang Zhen quickly found a compromise: "This will at least ensure that there will be results by the end of the year. It would be better if the new method can work." Since Du Yishan has many things to do every day, he is not in school most of the time. The other teachers in the same group are very young and have not even stayed in school as long as these Ph.D.s. Therefore, as a senior brother, Fang Zhen has to do a lot of work in addition to scientific research. Assuming some management responsibilities makes him appear conservative in many cases. Okay, lets do it like this. Yao Mengna nodded, accepting the compromise plan. Only Xia Tian, ??who had not yet had time to express her position, was dumbfounded. The situation reversed so quickly that it completely exceeded her imagination. How come I, a first-year master''s student, was assigned to be responsible for CFD/CSD? The words are divided into two ends, and the matter is divided into one side. To Chang Haonan''s expectation, he did not see Wu Yifan all day long the next day. According to the agreement, the latter should go to the computer room to start writing the manuscript. There was still nothing all day long on the third day. ?This even made Chang Haonan a little worried. In his impression, although Wu Yifan was not interested in professional content, he would still do what he promised to others. ?Early on the fourth day, just when Chang Haonan was already hesitating whether to find a counselor or even call the police, Wu Yifan finally appeared. Nan Shen, didnt you say before that the computer time and floppy disk storage space were not enough? Wu Yifan mysteriously took off his schoolbag and put it on the table, then opened the zipper towards Chang Haonan. "I got a laptop and a new box of floppy disks." ?Chang Haonan looked shocked at the IBM classic three-color mark in front of him. ? He ??suddenly felt that it was not a bad thing to have such a friend who was obsessed with business and did not care about studies. Where did you buy it? Chang Haonan turned on the computer and saw that the keyboard first split into two parts as the screen opened, and then came together again. IBM701C is almost a collectible model in later generations. If you want to buy it at this time, it is estimated to cost tens of thousands of yuan. tens of thousands of yuan in 1996! "When I was running a business, I met a senior from Huaxia Renmin University. He is a senior this year. He opened a restaurant outside and suffered heavy losses, so he used the computer to help me withdraw funds. In the past two days, I asked him to use the two coins you used. The software is installed. Chang Haonan seemed a little familiar with the story Wu Yifan told, but he no longer had time to think about it. He quickly took out his laptop and took out the two floppy disks containing engineering files. Open the liver! (End of this chapter) Chapter 13 You told me this is called J-7? Chapter 13 Did you tell me this is called J-7? In the following more than half a month, Chang Haonan has maintained a selfless working state: getting up early in the morning, in addition to attending class, he has been conducting design calculations and performance tests on several types of air intakes. Since there is no longer a limit on computer usage time, the progress is faster than initially expected. After Chang Haonan designed a satisfactory new nose, he also conveniently changed the large delta wing of the J-7 prototype into a double-winged one. Delta wings to enhance maneuverability at subsonic speeds. ?Although this improvement has been implemented on the J-7E, it is an active equipment after all. Chang Haonan cannot easily get the design drawings, so he still has to spend time to redesign a similar one. After all the design work was completed, Zhang Man even drew two imaginary drawings of this modified version of the J-7 for air combat based on the 3D model built by Chang Haonan. The course design defense is somewhat similar to the graduation project defense, except that the scale is much larger. The scene will be set directly in a large classroom, with dozens of students from the entire major sitting in the back, and several judges including Liu Hongbo sitting in the back. a row. In this era, classrooms were not generally equipped with computers. There was only a writing projector, which could project drawings placed flat on the carrier glass onto a large screen. The effect was actually similar to using a projector to display PPT, but you needed to prepare paper. Content matters. Under normal circumstances, neither other students nor the judges and teachers have seen the design plans of each group before, so a good-looking rendering can leave a deeper first impression on the audience. Soon, it was time for the defense review of the course design assignment. ??When Chang Haonan came to the classroom, it was almost full of people, so he had to take the other three people to find a seat at the end of the classroom by the window. ??They are all third-year undergraduate students. Although they have almost taken professional courses, it is not easy for everyone to complete an aircraft design from scratch, even the simplest design. Hence, generally speaking, the scoring of this assignment will focus more on whether the design ideas and design processes of each group are correct. After all, there are very few groups that can completely design a real "aircraft". Unsurprisingly, the designs of the first few groups are quite satisfactory. They are basically model-sized remote control aircraft, and many of the calculation examples are even directly copied from textbooks. ? Such an assignment will not get high marks, but it will not make any big mistakes. The judges questions are also step-by-step, and a group can be finished in about fifteen minutes. ??The somewhat dull atmosphere lasted until Huang Zhiqiang''s team came on stage. Huang Zhiqiang personally placed a thick book of bound design instructions on the table in front of the judges. Seaplane? Its interesting Liu Hongbo finally became interested and put on the glasses that had been on the table before. ??The other three teachers also cheered up almost instantly. At the same time, another person also placed the design drawing under the condenser of the writing projector. ??Although the projection images of this era were not very clear, one could still make out that the drawing showed an airplane with twin pontoons underneath the fuselage, which immediately triggered a burst of whispers from the students behind. This is...a seaplane? It seems to be able to carry people. Yes, look at the dimensions marked on the paper. The plane is 10 meters long. Let me try. As expected of Huang Zhiqiang, he really dares to do it..." Speaking of which, I remember someone said they wanted to design a fighter jet? That should just be said. I think it would be very difficult to design a truly manned aircraft. A fighter jet I cant even think of it. ?? Huang Zhiqiang stood on the podium in silence for a few seconds. Although he could not hear what the people behind the classroom were saying specifically, it was not difficult to imagine the shock and admiration of other students at this time. He enjoys this feeling. "Good morning, judges. The design of our team is a 2.5-ton seaplane that can carry up to 6 passengers." "The overall design of the aircraft is as follows, using a simple, reliable and stable double pontoon structure... " Firstly, we will introduce the appearance characteristics of seaplane floats and their impact on fluid dynamics... The theoretical calculation method of aircraft floats is as follows. The specific calculation process can be found on pages 23-25 ??of the design instructions..." The shape and frame design of the buoy are shown in the figure. The specific process of calculating the external load of the buoy can be found on pages 32-37 of the design instructions..." It has to be said that Huang Zhiqiang does have something special. Although the structure of this seaplane is unremarkable, his design process is very detailed and complete. He even made specific requirements for the mechanical properties of some key parts and carried out the overall design. The performance estimation should be said to be a fairly complete design plan. It took Huang Zhiqiang just half an hour to introduce his plan. When he said thank you to the teacher and classmates, the whole classroom burst into warm applause. Including Chang Haonan, everyone applauded, sincerely. Brother Nan, why are you applauding them? Isnt your design much better than that seaplane? Zhang Man clapped his hands absentmindedly twice and stopped. "It is not easy for four people to design to this level in less than a month. Although the entire body part obviously draws on existing mature designs, if you can figure out the double pontoons, you can at least be considered a master. The level of students." Chang Haonan commented very objectively. Brother Nan, you almost designed our fighter jet by yourself, isnt it even more powerful? Well...its naturally different. Facing Huang Zhiqiangs design plan, the four judges only asked two simple questions. The main reason was that the design description was very detailed and they really couldnt find any faults. Next group, Chang Haonan, Zhou Shuwan, Zhang Man, Wu Yifan! After hearing his name, Chang Haonan took a deep breath and stood up, picked up various materials on the table and walked to the podium. When he passed by Huang Zhiqiang, he seemed to feel that the latter was using a slightly provocative way. looked at him. ?Chang Haonan shook his head with regret. Huang Zhiqiangs ability is indeed very strong, but after this period of contact, he can feel that there is a problem with the other partys mentality. ?But now is not the time to worry about others, Chang Haonan also put his design description on the table in front of the judges. The thickness is only about half that of Huang Zhiqiangs book. ?After seeing this design description, Huang Zhiqiang was completely relievedthe design content of a fighter jet was only so thin that it was enough to show that it was an unfinished semi-finished product. Stable! "Improved J-7?" Liu Hongbo frowned as he looked at the title written on the cover. On the one hand, he felt that this group of students might be trying to fool around with a half-finished product. On the other hand, there was another picture under the title. The sketched renderings look... Its not like the J-7 anyway. "Dear judges and classmates, our team''s design is a deeply improved model of the J-7 fighter jet." While Chang Haonan was speaking, Wu Yifan had already projected another colored rendering of Zhang''s comic onto the big screen. superior. ?This amazing topic, combined with the pictures on the big screen, almost directly ignited the atmosphere of the entire classroom. Holy shit, are you really designing a fighter jet? Can you be more awesome than Huang Zhiqiang? Have you finished the plan? Dont just design a rough shape, right? Ive read a lot of books, so you cant fool me. Why does the J-7 look like this? Are you kidding us? (End of this chapter) Chapter 14 This can no longer be described by the word academic master. Chapter 14 This can no longer be described by the word academic master. Chang Haonan did not delay for too long. After Liu Hongbo turned back to maintain order, he started his explanation: "In view of the shortcomings of the J-7, the main fighter of the People''s Air Force, which has poor all-weather combat capabilities and does not have beyond-visual-range combat capabilities, our team changed the nose inlet of the original model to a mandibular inlet, leaving the nose The space can install a radar with a diameter of no more than 560mm, and the aircrafts flight performance is equivalent to or better than that of the prototype. "In addition, with the rapid development of supersonic aircraft, the boundaries that separate the aircraft from the power unit, internal flow and external flow have been broken. Therefore, during the design process, we adopted a chin-type inlet/conical front body integrated design The scheme, verified by computer simulation, shows that the inlet/conical front body/engine matches well, reflecting the advantages brought by the integrated design. The design ideas are now explained as follows. The calculation process is located on pages 14-15 of the design description. Calculation Fortran language programming and Fluent software were used in the process..." The performance analysis of the integrated model of the inlet/cone front body is completely carried out by computer. The simulation ideas and methods are as follows..." In order to test the reliability of the calculation method used, this article conducts numerical verification using the double ellipsoid model whose detailed performance data is given on pages 213-217 of the textbook. The results are shown in the figure. Under different incoming flow Mach numbers and different incoming flow attack angles, the results calculated in this article are in good agreement with the experimental data, which shows the credibility of the calculation method used in this article The judges just listened at first, but soon they realized that the design was highly complete and well-thought out, and was by no means a half-finished product. So they began to read the design instructions in front of them, and discussed in low voices from time to time. When Chang Haonan started to talk about the specific design process, the four people even opened their notebooks at the same time and started recording quickly. Of course, the four professors are all involved in CFD simulation. They do not have to copy everything Chang Haonan said like Yao Mengna. They only need to write down some interesting ideas. But for other students in the back of the classroom, such a scene was already shocking. On the stage, an undergraduate student was talking nonstop. In the audience, the four judges were taking notes? As for the specific content of what Chang Haonan said, not many people care about it. Can''t understand it anyway. Huang Zhiqiang, who was full of confidence in himself just now, was even more stunned when he saw this scene - apparently the reason why the design instructions were only half as thick as those of their group was because there were a large number of steps that were not, or did not need to be, reflected on paper. As for the three-dimensional shape design of the inlet entrance that the design manual in his hand said "needs to rely on experience" to complete, Chang Haonan directly showed an exquisitely drawn half-mold schematic diagram, using only two sentences to convince several judges He nodded repeatedly. ?Just because he can''t understand doesn''t mean that the teachers can''t understand. Chang Haonan''s ideas are obviously recognized. "After the design was completed, we compared the aerodynamic performance before and after the improvement. At a speed of Mach 1.5, the angle of attack was in the range of 0 to +10 or the sideslip angle was in the range of 0 to 6. The total airway pressure recovery coefficient reached above 0.950. The speed is Mach 0.8, the total pressure recovery coefficient within the same angle of attack or sideslip angle range reaches above 0.968, and within the flow coefficient range that matches the engine, the maximum total pressure distortion index does not exceed 0.14. The performance of the new inlet design at subsonic speeds is improved by about 3% to 8% compared with the original design, and the performance improvement between 1-2 times the speed of sound is more than 10%. "Compared with the MiG 21MF inlet design that enlarges the intake nose cone and installs a radar, the performance in the full speed range is improved by at least 23%, and the conical front body can accommodate a radar with a maximum caliber of 560mm. According to Existing models are estimated to be enough to lock on fighter-sized targets at a distance of about 30-40 kilometers. ?Although the previous content is obscure and difficult to understand, the students here can still understand the data indicators mentioned at the end by Chang Haonan. ?Hence, the silence in the back of the classroom when the design process was discussed quickly started to boil again. ?In the mid-1990s, beyond visual range combat was the most urgent issue for the Air Force. It can be said that whether there is a beyond visual range combat capability is the difference between 0 and 1. Because of this, for a long time, "pointed aircraft" that can be equipped with large-diameter radars have been synonymous with advanced. Only a small number of J-8B and Su-27 have this feature. Today, they actually saw an improved J-7 that also had the same characteristics and could be installed with radar! Dont look at the figure of 30-40 kilometers, which seems small. You must know that the AIM7F air-to-air missile, the main force of the US military in the 1990s, has a maximum range of only 40 kilometers in a head-on attack. On this basis, the Aspad and Aspaid purchased by our country from Italy The imitation Thunderbolt 11 has a range of only 30 kilometers, so this 560mm nose is enough for now. Not to mention that on this basis, the flight performance of the aircraft has not been reduced, but has been improved! If this improved version of the J-7 is paired with the Thunderbolt 11, it will be almost the same as the F16! The F16 can fly more than 30 kilometers with the AIM7. Most people who study aviation still have some understanding of the air force. Well, there may be a certain gap in terms of range, after all, the size of the aircraft. The other person seemed to be more rational, but there was obviously excitement in his tone. "Hey, what''s the problem with short range? We don''t bully others like the Yankees. Let me see, if we can have 200 at the beginning of the year, no, we can have 100 of these improved J-7s. Those two The aircraft carrier certainly wouldnt dare be so rampant! ?This sentence instantly won the unanimous approval of the people around him. Although our country''s aviation industry is still relatively backward, the supply of J-7 can still be opened up. However, the current model of J-7 has lagged behind when it was manufactured, so it can only maintain a small amount of production. For a time, although everyones views were not unified, almost everyone in the classroom began to discuss the aircrafts performance, cost, manufacturing difficulty and even the prospect of equipping the troops. In fact, not only the students behind, but also several judges and teachers began to consider whether this improved model really has the possibility of being put into practice? "Xiao Chang, although your design still has some room for improvement, personally, I have nothing to ask. If I were to take charge, I would definitely not be able to come up with a better solution than this." Professor Li Guang, the oldest of the four judges, took off his reading glasses and said, looking at Chang Haonan with relief in his eyes: "So I want to ask, do you think there are any problems that need to be solved in the manufacturing of this aircraft? "?" ?This is almost impossible to give a higher evaluation. You must know that this course only requires aerodynamic design, and manufacturing issues are not included in the assessment scope. Chang Haonan has already been prepared for this. "Hello Professor Li, we have considered this issue at the beginning of the design. 60% of the parts of this improved model can be used in common with the original model. The performance requirements of the new parts generally do not exceed the level of the MiG 21MF. However, considering the weight of the radar, in order to maintain aerodynamic balance, some composite materials need to be used to reduce weight in the air inlet and radome, accounting for approximately 2% of the total material of the aircraft body. Composite materials with a dosage of 2% are not new to the Chinese aviation industry. They have already had experience with the J-7M, J-8B and J-H-7 before. So this answer is basically equivalent to "there are no problems that need to be solved", but it seems not modest enough to say so directly, so I found a problem that is not a problem. I think if conditions permit, can we build a scale model and go to Mianyang to try it in a wind tunnel? ?Liu Hongbos voice was not very loud, and he said it to three other teachers, but someone still heard what he said. Mianyangs wind tunnel is not just a small experiment in a school laboratory. Going there to test, even if it is just a scale model, means that the plan really has the potential to take root. You must know that this is just a course design for the junior year! ??The discussion that had been silent started again, but this time, more people''s attention shifted to Chang Haonan. Obviously, the word academic master is no longer enough to describe such a person. (End of this chapter) Chapter 15 We generally call it a school bitch Chapter 15 We generally call it a school bitch ??In a corner at the back of the classroom, Huang Zhiqiangs gloomy expression was incompatible with the lively atmosphere in the classroom. The seaplane designed by his group had been completely forgotten by everyone. He suddenly felt a little bitter, but it was followed by anger. When he was a freshman, the school made computer courses compulsory. Huang Zhiqiang clearly remembers that Chang Haonan at that time was not even very proficient in using the keyboard. The schedule of professional courses in the first semester of the sophomore and junior years in the Aircraft Department was like hell. There was not even enough time to sleep every day. Moreover, Chang Haonan basically attended classes and self-study with everyone at that time, so it was impossible for him to have time to study computers on his own. ?Under such circumstances, how come he suddenly became proficient in computer programming and computational simulation in the second semester of his junior year? ?Hence, Huang Zhiqiang naturally thought of a possibility - they found foreign aid. After all, when he designed a seaplane, he copied the calculation examples in the American design manual. The design of a fighter jet is intricate. How could it be done so clearly without an experienced boss? ?Following this line of thought, he quickly remembered that he overheard Zhou Shuwan talking on the phone at home. The latter''s father seemed to work in the 601 Research Institute. Everything is right! Huang Zhiqiang excitedly slapped the table. Fortunately, the classroom was quite chaotic and everyone''s attention was focused on the aircraft design in front, so it did not attract too many people''s attention. "Brother Qiang, what are you doing?" A member of the same group next to him still noticed his emotional change. "Hmph, these people are trying too hard." Huang Zhiqiang snorted: "If they only come up with a design plan, it can be said to be a burst of inspiration, but these things related to manufacturing even take into account the issues of materials science. This is not something that four people can make, but it looks like...the work of those research institutes, and the father of Zhou Shuwan in their group happens to work in the 601 Institute." Boss, you are saying that their plan came from somewhere else... Another team member immediately understood. But if thats the case, why is Chang Haonan the leader of their group? Liu Ran, who lives in the same dormitory as Huang Zhiqiang and Chang Haonan, is relatively calm, and he doesn''t want to make the relationship between roommates too tense. "It''s just a matter of diverting firepower. I''m afraid Zhou Shuwan doesn''t want to be too high-profile." Huang Zhiqiang is convinced of his analysis just now, so naturally he won''t care about these minutiae: "After all, if the course design itself can get high marks, then the entire group''s The grades wont be bad, and more importantly, I can show my face in front of the reviewing teachers. Speaking of this, Huang Zhiqiang gritted his teeth again. If Chang Haonan''s group hadn''t stepped in, his design would have stood out from the crowd. At the same time, Chang Haonan has also finished his presentation. According to custom, the review teacher has to take each group''s design description back and read it completely. After all, the finished product designed by most people is completely invisible, and the score can only be judged by the correctness of the design process. ?But no one would doubt that their group would get the highest score, or even a perfect score. Since the atmosphere in the entire classroom had been aroused, Liu Hongbo simply announced a break and waited until everyone calmed down before continuing. Almost as soon as Chang Haonan stepped off the podium and returned to his seat, he was surrounded by several classmates in his class who usually had good relationships with him. Haonan, you dont show your real face. If I had known that you were so good at computers, I should have recommended you to participate in the digital modeling competition last semester. The person who spoke was Chang Haonans class monitor, a Mongolian man with average grades but a good person. He was highly regarded among his classmates. I was a scumbag in elementary school last semester. Recommending me to go would hurt the college. Chang Haonans answer was not false, but it still attracted a burst of cheerful boos from around him. "Anan, we generally call people like you a school bitch, and you will be scorned." Another classmate came up and patted Chang Haonan on the shoulder: "Besides, I estimate that you should have received full marks in this course. Look. With this attitude, the postgraduate students who are exempted from the examination must be stable, why dont you express this? The words "graduate student without examination" made Huang Zhiqiang, who was not far away, panic in his heart. You can directly study for a master''s degree or even a doctorate without taking an exam. As an institutionalized process, it has only been ten years at this time. According to regulations, the number of places cannot exceed 5%. Specifically for their aircraft department, there are usually 3-4 people, so the competition is quite fierce. fierce. ?This is exactly what he is aiming for, ??Although his previous results were still first in the year group, Chang Haonan, Zhou Shuwan and others were not much worse than him, and today''s incident will obviously become a huge bonus during the interview process. We cant let this happen. Huang Zhiqiang clenched his fists and secretly determined to go to Teacher Liu Hongbo to report the cheating behavior of Chang Haonans group. ?At this time, Liu Hongbo in front walked out of the classroom with a glass of water. ? Huang Zhiqiang gritted his teeth and asked another student in the same group to follow him out. ??If he just used anonymous reporting letters, he might not be able to attract attention at all. And if he reported directly, it would be suspected of discrediting his competitors, so he had to use other methods. Even if their performance cannot be affected, at least it will leave an unsolvable knot in the minds of the judges and teachers. When it comes time to recommend the interview, this may become a factor that affects the outcome. ??The crowd around Chang Haonan quickly dispersed. After all, this was just a course design demonstration. Everyone had their own things to do, and it was impossible to hang around others all the time. ?At this time, a short and thin figure sat next to him. Haonan, no, Brother Nan, no, Nan Shen You have something to say. Chang Haonan replied while starting to search for information about the person in front of him in his memory. ??Li Yan, a native of Liao Province and a fellow villager of Chang Haonan, is not in the same class as him, but after all, they have a relationship with each other, so they are familiar with each other. ??But its also the type that we have no contact with after graduation. "Nanshen, do you think the improved J-7 designed by your team can really be equipped for military service?" When Li Yan asked this question, his eyes were fixed on the cartoon rendering on the table, with a look in his eyes. It seems to be shining with light. At this time, Chang Haonan vaguely remembered that Li Yan''s father seemed to be an air force pilot. No. Chang Haonan decisively gave a negative answer. After hearing this answer, Li Yan''s eyes gradually dimmed. We will be better equipped. Is there anything better? Li Yan looked at the design in front of him in disbelief. ?His father is a J-7 pilot. In fact, he is a pilot of a very rare model - the J-7C. ?This new aircraft, which was only equipped with the army two years ago, has greatly sacrificed its maneuverability just for the sake of all-weather combat capabilities. Zhang Yan heard his father and colleagues complain more than once during the holidays that the performance of the new aircraft was not as good as the old model. So in his opinion, Chang Haonan''s improved model is almost perfect. Of course. Chang Haonan nodded. (End of this chapter) Chapter 16 About the student I liked suddenly becoming my junior brother Chapter 16 About the student I liked suddenly turned into my junior brother In fact, in 1996, the first prototype of the J-10 was nearly completed, and the localization of the Su-27 was also in full swing. The People''s Air Force''s blueprint for the light and heavy configuration of the next three generations of aircraft was already very clear. In this case , it is impossible to equip a large number of deeply improved models of the J-7. ?So even if his design is really implemented, it will only be used for foreign trade at most, replacing the status of the J-7MG in the original timeline. Chang Haonan, who has been through it all, knows this very well, so he decided to use this model as a stepping stone from the beginning. And judging from todays situation, it works well. Of course, you cant tell Li Yan these things. Project No. 10 and No. 11 are both top secrets of Tianzi No. 1. At least he, a junior, shouldnt know too many details. After a 15-minute break, the second half of the defense review continued. However, after the presentations of Huang Zhiqiang and Chang Haonan, everyone basically had no patience to look at the imperfect semi-finished designs. Professor Liu Hongbo, sitting in the first row, was a little confused. ??While fetching water in the water room just now, he overheard several students saying that the J-7 improved plan came out of 601 and was not the work of Chang Haonan and the four of them. Judging from the previous defense process, Liu Hongbo didn''t really believe this statement. Whether it was Chang Haonan who made the main speech, or the other two students, a boy and a girl, who gave supplementary explanations of the calculation process, they all showed that they had a strong understanding of the design plan. own understanding. If you just copy a design drawing, it is impossible to reach this level. But he had to think about this possibility. On the one hand, the design description they submitted does have the style of those in the aviation industry. On the other hand, this thing is really too big. The level of students'' grades and even whether they cheated in course design are trivial matters, but if a plan from the Aircraft Design Institute really leaks out, it would be a big trouble. Even if there was a one in 10,000 possibility, Liu Hongbo would not dare to ignore it completely. ??But having said that, if a high-profile interrogation and investigation is conducted just for this one in 10,000 possibility, then no matter what the result is, it will have an adverse impact on several students. He is also thinking about letting Chang Haonan be his graduate student! Until he returned to the office after class, Liu Hongbo was still in a dilemma. Senior brother, although your hair is indeed very thick, you may still become bald if you keep growing it like this. A clear female voice suddenly sounded from the door. Liu Hongbo himself is also a student of Academician Du Yishan. He just became independent from the latters research group last year. In addition, he is only in his early thirties, so the academicians students are accustomed to calling him senior brother. "Oh, it''s Junior Sister Yao. I see that you are all busy with the 7-200 new wing recently. Why do you have time to come to me today?" Liu Hongbo turned around and looked at the door. Standing there was Yao Mengna. Mr. Du went back to school today, arent you going to meet him? Yao Mengna asked, leaning on the door frame. Liu Hongbo''s face lit up when he heard this, and he suddenly felt like a new village had a bright future. Because it suddenly occurred to him that the matter could be investigated by Academician Du Yishan. With the latter''s connections, he only needed to make a call to Institute 601 to get it done. "Let''s go, I just have something to ask Mr. Du." Liu Hongbo picked up all the design materials handed over by Chang Haonan''s group from the table, and quickly left the office with Yao Mengna. Half an hour later, Du Yishan and Liu Hongbo were the only two people left in Du Yishans office. "Xiao Liu, I''m afraid you didn''t just come here today just to look at me." Du Yishan sat back on his chair and pointed to a pile of things in Liu Hongbo''s hand: "I have something in my hand, and I''m going to give it to you." Did I assign a task? "I still can''t hide it from you, teacher." Liu Hongbo put the information in his hand on Du Yishan''s desk with a smile on his face: "This is a big assignment handed in by a group in this aircraft design class." ? ? ? "Big assignment ? I remember, don''t you always ask Li Guang and the others to be judges together?" Du Yishan unscrewed the thermos cup in his hand, but found that the water in it was already cold, so he handed it to Liu Hongbo who was standing next to him. Pour some hot water: "What, the four of you don''t agree?" Liu Hongbo handed the thermos filled with water back to Du Yishan: "That''s not true. In fact, we all agree that this plan is perfect." Oh? Then Id like to take a look. Du Yishan finally became interested. As he spoke, he used his other hand to open the first page of the design description. An improved version of J-7? Du Yishan smiled and remembered the time when he was surveying and mapping to imitate the J-7 when he was young. Its rare to have the courage to try a supersonic fighter jet, and the rest of your life is formidable. Liu Hongbo did not answer this time, mainly because he really didnt know what to say. ?This design is not as simple as having courage at all. Sure enough, after turning to the third page, Du Yishan''s expression became serious and the thermos cup in his hand was placed on the table. When he turned to the fourth page, the academician had already taken out a sharpened red and blue pencil from the pen holder and began to write and draw on the draft paper next to him. About half an hour later, Du Yishan finally raised his head and asked, "Is this really an undergraduate design?" This is exactly why I came to you Later, Liu Hongbo told Du Yishan what had happened and his concerns in short words, and said that he had called after returning to the office to inquire. There was a student named Zhou Shuwan in the group, and his father was indeed in the 601 in Shengjing. Research institute work. "From the writing style, we can indeed see some shadows..." Du Yishan lowered his head and thought for a moment: "But after the 601 Institute completed the surveying and mapping of the basic type of J-7, it quickly handed over the follow-up tasks to the Rongcheng 611 Institute and the Rongcheng Institute of Technology in accordance with the requirements of the superiors. Building 648 forts was already 30 years ago. Du Yishans meaning is very clear. Theoretically, it is unlikely that the 601 Institute will have an ongoing J-7 improved project. "Forget it, just to be safe, I''ll make another call to confirm." Du Yishan hesitated for a moment, picked up the receiver of a red telephone on the table, waved his hand to Liu Hongbo to wait outside the office temporarily, and then dialed a number . A few minutes later, Du Yishan''s voice came from the office: "Okay, come in." Liu Hongbo opened the door again and saw Du Yishan leaning on a chair, holding the reading glasses he had taken off in one hand, and holding the design report in the other hand. With his knowledge of his teacher over the years, he knew that this was a sign that Academician Du was in a relaxed state. It should be no problem. ??It''s just that Du Yishan''s next words made him feel like he was struck by lightning. Xiao Liu, I think Chang Haonan can come to me to study for graduate school. Well, like Xiao Yao, its okay to make an exception and let him directly study for a doctorate. "ah?" Liu Hongbo looked confused. How come the student I just fell in love with in the morning will become my junior brother at noon? (End of this chapter) Chapter 17 Favored by academicians [recommended above, begging to pursue it] Chapter 17 The Favor of Academicians [Recommended above, I beg to read it] On the other hand, Chang Haonan still didnt know that his stepping stone had achieved results far beyond expectations. ? He ??was catching up on sleep in the dormitory at this time - he had been suffering from liver failure for more than half a month, and even though his physical condition had returned to the most energetic state of his early 20s, he really felt a little unbearable. Until a rapid knock on the door woke him up. "Huh?" Chang Haonan reluctantly opened his eyes, and then spent about two seconds to make sure that he was the only one in the dormitory, so he reluctantly got out of bed and opened the door. Standing outside the door is Yan Lu, the counselor in charge of the entire aircraft department. Fortunately, he has no habit of sleeping naked. Sister Lu? Yan Lu is not much older than the junior students and has a good personality, so everyone usually calls her Sister Lu or Sister Lu. ?There is no woman who doesnt like to be called younger. ?However, although she has no airs in front of students, Yan Lu is the counselor in charge of the entire department after all, and she rarely directly interacts with a specific student. So its quite rare for her to appear here. Classmate Chang Haonan, Academician Du just called my office and said he wanted you to come to his office. Yan Lu''s tone was a little excited. Although Du Yishan didn''t tell Chang Haonan what to do just now, judging from the other party''s tone, it shouldn''t be a bad thing. ?In addition to being a counselor, Yan Lu is also the deputy secretary of the Youth League Committee of the college, so if the students can achieve something, she can also be credited with it. At least it can be included in this years Youth League Committee work report. "Academician Du...Academician Du Yishan?" Chang Haonan was even stunned when he heard the name. To be honest, he had never thought that he could rise to the top by relying on course design and be favored by Du Yishan, but when things really developed in this direction, he was still in a daze for a moment. "Who else could it be? You quickly change your clothes and ride my bike over there." Yan Lu looked at the basketball uniform that Chang Haonan was wearing as pajamas. Although it was not a formal occasion, she was dressed like this to meet the academician. Still a bit much. "Oh...oh, okay, I''ll change right away." Chang Haonan closed the door with his backhand, quickly changed into a set of shirts and jeans, and then put some things he might need into his bag and carried it behind his back. ?Previously, his plan was to follow Professor Liu Hongbo to improve the Xinzhou 60 after receiving a graduate degree in the second half of the year, but now the person extending an olive branch suddenly became Academician Du, which made Chang Haonan feel a little hopeful. ?Ten minutes later, Chang Haonan rode a women''s bicycle downstairs to the aircraft building. Classmate Chang Haonan! Before he could park his bicycle, he heard a familiar voice coming from not far away. When he looked up, he saw that it was Professor Liu Hongbo waiting for him at the door of the building. "Teacher Liu." "Sigh..." Liu Hongbo''s first reaction after seeing Chang Haonan was to sigh. Looking at the complicated expression of Professor Liu in front of him, Chang Haonan was a little confused for a moment. Many possibilities flashed through his mind in an instant. "Just call me senior brother from now on." Liu Hongbo turned around and walked into the building with a bitter look on his face: "Let''s go, I will take you to see Academician Du." ??I''m so stupid, really, I just knew that Academician Du could prove Chang Haonan''s innocence with just a phone call, but I didn''t know that he would actually steal my student... Chang Haonan naturally didn''t know what kind of ups and downs Liu Hongbo had experienced in the past half day, but he quickly followed him to Du Yishan''s office on the fourth floor. "Hello, Academician Du." "Classmate Chang Haonan, right?" Du Yishan showed a kind smile and stretched out his hand to motion to another chair in front of him: "Sit here and chat." Liu Hongbo, who was next to him, had long been accustomed to this and sat on a sofa against the wall. I have just seen the design of our group, and it is very well done. Du Yishan gave a rare high evaluation for him right out of the gate. I see the division of labor written in this design description. Are you responsible for the overall program control and all computer simulation work? Yes. Chang Haonan nodded. Now is definitely not the time to be modest. Tell me what you think. How did you come up with the idea of ??designing a fighter jet? After Du Yishan finished speaking, he picked up the thermos cup and took a leisurely sip of water. Faced with this problem, Chang Haonan of course told the truth: "Because of what happened at the beginning of this year, I feel that we cannot always let others bully us. Since the air force is not strong enough, then I want to design an aircraft that can quickly improve combat effectiveness. " After hearing the answer given by Chang Haonan, Du Yishan''s eyes changed slightly. Such a simple emotion, but it is no longer common in this age when people''s minds are changing. Whats more, the student in front of me not only has simple emotions, but is also able to transform emotions into persistent actions. This reminded him of the colleagues he had when he was young. "Compared to strong enemies, we are still relatively weak now." Du Yishan put the water glass aside: "But as long as I have your energy and mobility, it is not impossible for me to catch up with them." "Of course, and I believe that day will not be far away." Chang Haonan replied firmly. Du Yishan did not continue this topic, just smiled and continued to ask: "So, after you had the idea of ??improving the J-7, how did you come up with the idea of ??taking the mandibular air intake route?" The critical moment has come! ?Chang Haonan took a deep breath and gave the explanation he had thought of for a long time: What the J-7 currently lacks the most is its beyond-visual-range combat capability, so my starting point is to leave a nose space for the aircraft to install a radar. "The idea of ??enlarging the nose cone has almost reached its end on the MiG-21bis and my country''s J-7C, so I considered directly changing the original nose air intake method, and the mandibular air inlet has the least impact on the overall structure of the aircraft. kind of. In subsequent simulations, I found that because the outer compression flow field of the nose radome is difficult to match the inner contraction flow field of the inlet, there is a problem that the compression of the side wall of the inlet is stronger than the compression of the upper wall. At the same time, the inner cone-shaped incident shock wave of the inlet intersects with the cone-shaped precursor to generate a crescent-shaped upper front edge, resulting in high pressure on both sides in the near-wall area near the upper front edge of the inlet. The transverse pressure gradient on the symmetry plane forces the boundary layer developed from the cone precursor to converge toward the symmetry plane of the inlet, thereby forming a low-energy vortex structure that develops downstream, seriously reducing the overall performance of the inlet. " "So I considered that instead of designing the aircraft and the power unit separately, as well as the internal flow and the external flow, the radome was designed as an integrated design as the conical front body of the inlet, using the longitudinal symmetry plane to face the transverse pressure gradient on both sides. , to realize the displacement of the conical front body boundary layer to reduce the impact of the front body boundary layer on the inner flow path of the intake duct, which is the idea reflected in my design description. " ?Chang Haonan was, after all, a genuine aeronautical engineer before he was reborn. He did not only know the things that were taught to him systematically, so the answers he gave were clear and well thought out. From the initial indicator requirements, to the subsequent trial and error encounters, then to the discovery of the problem, and finally to the solution of the problem, a complete closed loop of thinking is formed. This is the mental journey that only the real designer himself can explain clearly. It will not be written in any design instructions or manuals. When Chang Haonan finished explaining his design, Du Yishan''s eyes were full of approval. Thanks to [book friend 150309065732434] for the reward of 500 starting coins Thank you to [Wushuang Wushen] [This cannot be closed yet] [fhtvbn] [Honghualang] [LeeEnfield] for your monthly ticket support! (End of this chapter) Chapter 18 The idea of ??hypersonic speed Chapter 18 The idea of ??hypersonic speed "Xiao Chang, Xiao...Professor Liu told me before that you had a very deep and clear understanding of this design during the defense. To be honest, I didn''t believe it, but now I can see it." Du Yishan cheerfully picked up the design plan of Chang Haonan and others on the table: "It''s like the waves behind the Yangtze River push the waves ahead. I, an old man like me, can hardly keep up with the ideas of you young people." Academician Du was very complimentary. I just used some simulation methods to make an improved model design. There are still many things I need to learn from seniors like you. Chang Haonan This is not a random compliment. In fact, Du Yishan still played a vital role in the aviation industry until the new century, and played an important role in the development of a certain type of transport aircraft. "Ha, it sounds nice to talk." Du Yishan has obviously read this design report many times, and he immediately turned to the content about the performance test: "What do you think is the biggest advantage of the mandibular air intake designed by you? What? Or is there any other place besides being on this plane? ?This question shocked Chang Haonan, and he secretly sighed that Academician Du''s vision was really good. He only spent two or three hours at most reading the design instructions before discovering the greater potential of this design. "In fact, we have discovered in simulations that the new air inlet has more obvious advantages at higher speeds than the traditional design. Although the maximum speed of the improved J-7 can only reach Mach 2.0, we still have higher speeds. Some calculations were conducted on the flow field distribution and performance at speeds. The results show that this inlet design can maintain a total pressure recovery coefficient of more than 0.73 up to the speed of Mach 3.5-4.0 and the inflow angle of attack of 6. , and if the design point selection is specifically optimized for high speed, the performance can be even higher. Can it reach Mach 4? ?Du Yishan had made qualitative judgments based on experience before, but after all, his eyes were not in a wind tunnel, so he still couldn''t see the specific data. Well... we have calculated up to Mach 4. At higher speeds, the current calculation and simulation methods are not suitable. The methods need to be improved, and better equipment is needed. In other words, what Chang Haonan means is that this design still has potential that can be tapped, but it cannot be tapped due to current conditions. "As for the use, I think in the short term, we can consider combining it with a liquid fuel ramjet engine and using it on missiles with a speed of Mach 3-4. In the long term, if we need to develop and use scramjet engines for flight in the future, This design idea should also be useful for preliminary research on air-breathing hypersonic aircraft with speeds above 5 times the speed of sound. ?This time, Du Yishan''s eyes were a little shocked. In 1996, China had not even fully developed a subsonic cruise missile using a turbojet engine. ?Under such circumstances, this junior undergraduate student has actually begun to consider making technical preparations for supersonic cruise missiles and even hypersonic cruise missiles. ?Although it is not that no one is doing preliminary research in this area, those are basically still in feasibility analysis or theoretical research. This air inlet design, and more importantly, this integrated design idea, can even be counted as part of engineering practice. ?It is a pity that with the current strength of Chinas aviation industry, there is no way to carry out more in-depth system development work. Looking at the expression of Academician Du Yishan in front of him, Chang Haonan knew that he should be stable. Sure enough, after about a minute of ideological struggle, Du Yishan put the design instructions in his hand back on the table next to him, raised his head and asked Chang Haonan: Xiao Chang, I wonder what your plans are for your future? Not far away, Professor Liu Hongbo closed his eyes in painhis last glimmer of hope was shattered. As a student of Du Yishan, he knew very well that what he just said was a standard question before an academician prepares to recruit disciples. Faced with this problem, Chang Haonan almost did not think twice: "Since I have chosen Beijing Airlines'' aircraft system, it is natural to continue my studies and use scientific research results to help the development of our country''s aviation industry!" He has already taken this path in his previous life without a system. Now that I have come, it is even more impossible to change my mind. "Well... your course design can be used as a graduation project with a slight modification. I can be your graduation project tutor." Du Yishan nodded: "As for the future, I have two suggestions. I wonder if you are interested in hearing it? " Although this is a question, if someone is really not interested in answering, they would be stupid. Of course, please give the lecture, Academician Du. ?Chang Haonan took a deep breath and tried to calm down his excitement. "First, I can make an exception for you to apply for a place to study abroad on a government-sponsored basis. It may be in the UK or the United States. If you are willing to take this path, then in your senior year, focus on overcoming the language barrier. This way You can adapt to the environment as quickly as possible. ?Du Yishan was only halfway through his proposal when Liu Hongbo on the other side wanted to get up and seemed hesitant to speak. Although government-sponsored students studying abroad must return to their country to work according to regulations, in this era, there are quite a few people who never return after going abroad. In fact, most people do not intend to break the contract at the beginning, but after arriving abroad. After seeing better living, working and even scientific research conditions, I finally chose to stay outside. Although publicly-sponsored international students who refuse to return to their country need to repay all state-funded expenses in accordance with the agreement and pay an additional 30% liquidated damages, with the current income gap between domestic and foreign countries, this money is not considered at all for those who stay in European and American countries to work. What. Therefore, Liu Hongbos philosophy has always been that if the students themselves have the idea of ??going abroad, he will not object, but if the students do not have the intention to do so, he will not take the initiative to mention it. He was really too afraid that the good young man he had fallen in love with would never come back. ?Especially for a genius like Chang Haonan, who can be said to be one in a million. If he goes abroad, he will definitely be the target of the other country''s struggle. Even if he wants to come back, it may not be that easy. "Second, this is also an exception. You can choose to join my research group and skip the master''s degree and directly study for a doctorate. Compared with going abroad, you can get exposed to more practical projects here, but the conditions are indeed not the same as others. It cant be compared, it will be harder. If you choose this, I will let you participate in some key projects as soon as possible. "Of course, if you have other ideas of your own, I will try my best to help. In short, the choice is yours." I choose the second one. Chang Haonan replied looking into Du Yishans eyes. ?This was his original idea, to prove his ability through course design and participate in specific projects as soon as possible, but the actual situation went more smoothly than he had previously expected. You really dont want to go abroad? Du Yishan smiled and asked again: If you go abroad for further study, you can still build the country when you come back. In fact, if Chang Haonan did not have this system, he might really choose to go abroad. After all, in this era, no matter which company is Britain, the United States, France or Russia, they are far ahead of the domestic in aviation. After going out, he only needs to learn something and return to the country. Its all valuable experience and knowledge afterwards. But with the help of the system, this gap no longer exists for Chang Haonan. If he goes abroad, he will contribute knowledge to others instead of learning knowledge. This is contrary to his original intention. (End of this chapter) Chapter 19 I choose to stay [Kneel down and beg to pursue reading! 】 Chapter 19 I choose to stay [Kneel down and beg to read it! Yes, I want to stay with Beijing Airlines. ?Chang Haonan repeated his choice again. "Of course there are benefits to going abroad, but as a Chinese, I can''t come into contact with any core projects abroad, and the experience I can gain is limited. Moreover, I have been reading some European and American professional journals and books in the library. To be honest, I dont think the gap between us is so big that we need to learn something abroad that we cant learn at home. ?Du Yishan stared at Chang Haonan with a determined look for about half a minute. Then, you are welcome to join my research group. After hearing these words, Chang Haonan finally showed joy: "Thank you, Academician Du." Still called Academician Du? Thank you, Teacher Du! An old man and a young man sit opposite each other, forming a harmonious picture in the afternoon sun, as if they are the inheritance of two generations of Chinese aviation people. However, Professor Liu Hongbo, who was heartbroken next to him, couldn''t stand this. After hearing Chang Haonan say that he would not go abroad, his heart dropped, and he found an excuse to escape. ??Although it is only a verbal agreement reached in the office, it is impossible for a person in Du Yishan''s position to let go of Chang Haonan''s pigeons, so the latter''s decision to go direct can basically be regarded as a certainty. Du Yishan was obviously in a good mood to have such a talented student: "Xiao Chang, have you ever thought about writing this integrated design method as a paper and publishing it?" Even if it is research related to confidential projects, a considerable part of it can still be published after being declassified, let alone such content that has nothing to do with the specific project. Just like many patent authors hide some key steps in public documents or deliberately write them incorrectly, authors of papers in the engineering field are not always so honest and sometimes use some means to keep key content confidential. necessary industry exchanges. Chang Haonan naturally understood the truth behind this, but he still had to pretend that he didn''t understand it. Of course I have thought about it personally, but the content involves active equipment after all... Haha, its great that you have this string in your mind. Du Yishan smiled more times this afternoon than he had in the past week. It was obvious that the student in front of him made him very satisfied. "But firstly, this research itself is not confidential, it is just a methodological thing, and you can also refer to the declassification process to hide some content related to specific data. Secondly, I read your design description, and the key point is As for the simulation program, this does not need to be published publicly. If anyone within our system is interested in this, they will naturally contact you. " In that case, I will go back and revise it and adjust it to the format of the paper. Chang Haonan agreed directly. Its not that he had to do anything with this paper, but from the beginning, Chang Haonans idea was to spread the knowledge and experience that the system taught him. As an undergraduate, the best way is to publish a paper. ??The problem is still there, engineering research will always be a castle in the air if it does not involve specific projects. Successful project experience is always more credible than a paper alone. But Chang Haonan can''t tell the academician directly, I know that the 611 Institute is preparing a similar J-7 improved design, please contact me. Leaving aside Du Yishans reaction, the 611 Institute itself may not yet know how to change it. Go ahead and remember to give it to me after youve made the changes. Du Yishan handed the design instructions on the table to Chang Haonan: You have to do this quickly. It will be good for you if you can be hired before the start of the next semester. From Du Yishans point of view, it is now approaching the end of the junior year. If the paper can be published before the end of this semester, it will be of great help to the interviews for postgraduate students who are exempt from examination and the scholarship evaluation for this academic year. ?Of course he can go beyond the college level and force people to leave, but Chang Haonan''s own performance is good, so there is no need to do such bad things. Du Yishan even wondered whether he should add his own name at the end of the paper. As a scholar with a certain reputation internationally, his name can at least make editors take a serious look at the content of the paper instead of discarding it directly. As for the quality of the paper No need to worry at all. Chang Haonan stood up and took the design instructions with both hands: "Then I won''t disturb Teacher Du. I will bring it to you after the changes are completed." After leaving the office, Chang Haonan took a special look at the system and found that his scientific research points had been restored to 6 points. The system gives scientific research points based on the upper limit of the impact of scientific research results. ?His design plan currently has very limited actual influence, so it has only received 5 scientific research points. If Du Yishan was not one of the people who saw the design description, this number would probably be even lower. But if this result has a greater impact in the future, then new points will be earned. Correspondingly, if a result creates a sensation when it comes out, it can obtain a large number of points at once, but it will be more difficult to obtain points through the same result in the future. Therefore, although his starting point is different from that of Du Yishan, Chang Haonan also hopes that his paper can be published as soon as possible. In addition, he also gained a measly 5 experience points in [Management Level]... After all, I just took three undergraduate students to do a big homework. Engineering Experiencegained 20 points. Theoretical ability has not changed. After all, as a person who came back from more than 20 years ago, Chang Haonan did not use any "new" theories for himself in this process. ?Looking at Chang Haonan''s leaving figure, Du Yishan felt as if he was back when he was young, full of inexhaustible energy. ?So after thinking for a moment, he decided to go to Liu Hongbo''s place to see if there were any other works that would impress people this year. Of course, he doesnt expect to find a second Chang Haonan. For a junior undergraduate, being able to complete the design process without making any mistakes is already a pretty good prospect. Xiao Liu. Du Yishan opened the door of Liu Hongbos office holding a thermos cup: Are there any other works worth seeing in this sessions course design? Liu Hongbo almost cried when he heard this. Of course, he still had Huang Zhiqiang''s design instructions in his hand. Although he couldn''t compare with Chang Haonan, it was definitely a perfect score compared to previous years. However, this second best option seems to be blocked by Du Yishan... But Liu Hongbo is a person who cannot lie. He knows that he will never be able to deceive the teacher in front of him. There is also a very complete design, so I am going to give it two full marks this year. Please sit down and rest for a while, and I will get it for you. After a while, the designs from Huang Zhiqiangs group were placed in front of Du Yishan. Another complete design? ?Du Yishan happily sat on the sofa and started reading. However, this time, he gradually frowned while reading. Liu Hongbo also quickly discovered that something was wrong with Du Yishan''s expression. Different from the seriousness when he first saw Chang Haonan''s design, the academician''s face now looked more like...angry? Teacher, whats wrong with this design? Go to my office. On the second bookshelf on the right side of the table, there is an English book with a green cover. Bring it over. Du Yishan said in a deep voice. ?Although he still didnt know what happened, Liu Hongbo immediately took back the book according to the other partys wishes. During the defense review, did you ask any questions about this design? Du Yishan raised the carefully bound design description in his hand. I asked about some calculation details, but the design description was already very detailed, so I didnt ask any more questions. An ominous premonition flashed through Liu Hongbos mind. Come and take a look at this. ?Du Yishan said, turning the book to the end, and then handed it to Liu Hongbo. (End of this chapter) Chapter 20 The sons and daughters of China have many wonderful ambitions [please read it! 】 Chapter 20: Chinese people have many ambitions [Please read it! "This is..." Liu Hongbo took the book and glanced at it twice. The expression on his face quickly turned to shock, and after turning back a few pages, it turned to anger. There is a "Design Calculation Example" chapter at the end of this book, in which the design process of a small seaplane is almost exactly the same as that submitted by Huang Zhiqiang! Although considering the difficulty of this course, Liu Hongbo does not prohibit students from referring to calculation examples in textbooks or other books, but they need to be marked according to the references. Too many references will have a negative impact on grades. ??Huang Zhiqiangs design description naturally did not indicate it. Besides, this situation can no longer be called a reference, it is completely plagiarism! And he actually wanted to give this assignment full marks before! Liu Hongbo suddenly felt that he had been fooled. "Forget it, you can handle this matter. I''ll go back first." Du Yishan''s good mood was completely ruined by this incident. He got up and left Liu Hongbo''s office without even taking the book. A few minutes later, Liu Hongbo picked up the phone receiver on his desk with a gloomy expression. Hello, is this Teacher Yan Lu? Please make another trip and ask your classmate Huang Zhiqiang to come to my office. "It doesn''t matter. I''m always in the office. You can wait no matter how late it is." ??Although Liu Hongbo had already made a rough guess about the situation, after all, it was related to a student''s grades and even his future, so he decided to suppress his anger first and called Huang Zhiqiang over to ask more detailed questions about the design ideas. ??If the latter can describe a closed-loop thinking process like Chang Haonan did just now, then he can think of it as a coincidence. But if not, that''s a different story. ?In this era, papers still had to be submitted by hand, so Chang Haonan, who left Du Yishan''s office, went directly to the stationery store to buy a stack of manuscript paper, and then went straight to the library. As for Yan Lus bicycle Its better to do it later, I believe Sister Lu will understand. Chang Haonan found a secluded place to sit down, took out the Hero 100 pen that his father gave him when he was in college from his stationery bag, and wrote the title of the paper he had already thought of on the manuscript paper. Research on the integrated layout of dual-module mandibular inward-turning air inlet/conical front body Abstract: In order to achieve a good match between the internal contraction flow field of the three-dimensional inward turning inlet and the external compression flow field of the conical precursor, a double-moduleschininward-type inward-turning inlet/conical precursor (Double-moduleschininward- turninginletandconicalforebody (DCII/CF) integrated design method, a novel DCII/CF integrated layout of juxtaposed inlets is obtained. For this layout form, we carried out... Handwritten papers are actually very simple to write. The troublesome thing is drawing. You need to draw it by hand on graph paper and then paste it on. It is not pasted with Ctrl+V, but with glue and physical paste. Fortunately, this is only the first draft, and Wu Yifan has already prepared the required charts before, saving Chang Haonan a lot of effort. Since he was already familiar with the content in the past half a month, Chang Haonan did not spend much time and only took about four hours to complete it smoothly. It was already evening at this time. Chang Haonan estimated that Du Yishan had probably already got off work, so he decided to send it over tomorrow. Looking at the 10 pages of manuscript paper that had been filled in front of him, he stretched contentedly. Speaking of which, its time to contact my family again. ??Chang Haonan called home the day after he traveled through time, but at that time he couldn''t control his emotions at all, so he only chatted for a few words and hung up in a hurry. Thinking about it, after getting used to it for such a long time, it should be no problem. ?Other than that... He is almost out of money. ?Originally, its almost time for a holiday now, so all I have to do with the remaining money is hold on for a few more days and then buy a train ticket to go home. But this summer vacation, he knew that he would most likely not have time to go home. So this matter must be discussed with the family in advance. ?Chang Haonans father, Chang Yuanchao, is a policeman, and his mother, Zhou Li, is a high school Chinese teacher. Yes, he was Chang Haonans Chinese teacher and head teacher in high school. ?He was able to get into Beijing University of Aeronautics and Astronautics, and it was indispensable for Ms. Zhou Lis dual mental and physical encouragement. Supposedly, such a family situation is not bad, but unfortunately my father has always had the attitude of raising children in poverty and raising daughters in wealth, so even after he went to college, he never had enough money. ?After packing all the materials and papers into his schoolbag, Chang Haonan went to the public phone booth again, took out the IC phone card with the Yellow River pattern printed on the surface, and dialed his home phone. Hello, is it brother? ??A slightly immature female voice rang on the phone. It was Chang Haonan''s younger sister, Chang Jiayao, who will be in her third year of high school in the second half of the year. Its me, why are you at home today? ?Its not dinner time yet, so Chang Jiayao shouldnt finish class so early. Brother, today is the weekend Since Teacher Liu Hongbo only borrowed the lecture theater for today, the defense review was forced to be scheduled on Sunday. However, Chang Haonan had experienced too much in the afternoon just past, so he forgot about it. Okay, are your parents at home? No, Im working overtime. Ill cook for myself at night. Chang Jiayao replied with a somewhat aggrieved voice. ?Police officers are naturally busy day and night, and high school teachers may not always get a break on weekends. It is normal to be away from home. "Okay." Chang Haonan''s mood was a little complicated, not just because of the cost of living, but because he did have a feeling similar to a hometown shyness: "How is Jiayao''s recent studies?" ?This is almost a question asked subconsciously, because Chang Haonan, who has returned from rebirth, actually knows the situation of his sister. It will definitely be no problem to get into college, but it is basically impossible to get into a school like Beijing Airlines. "Oh...that''s it. If you don''t go to college, it will be no problem to go to university anyway." Chang Jiayao herself was very open-minded: "But brother, I want to ask you something." "What''s up?" ??Although Comrade Chang Yuanchao has always shown a preference for girls over boys, this has not greatly affected the relationship between Chang Haonan and his sister, except that when he was a child, he often cheated his sister of pocket money. You studied airplane design in college? Yes, the Department of Aircraft. Chang Haonan nodded and quickly searched his memory. He did not recall that his sister had shown any interest in his major. Brother, have you ever seen a moving airplane? Chang Jiayaos tone was a little excited. Of course I have. ?Chang Haonan''s answer came out of his mouth. ?But after he said this, he realized that he had probably never seen it before. Beijing Airlines has a famous aircraft museum, but the planes in it are obviously not flyable. What about the pilot? Brother, do you know the pilot? I know a few. Since they had already said they had met before, Chang Haonan simply pretended to be: Why, you are already looking for a boyfriend at such a young age? Brother, dont talk nonsense! Chang Jiayaos voice slapping the table came from the receiver: I...I want to participate in the Air Force recruitment next year. Chang Haonan was completely silenced with one sentence. ??He didn''t remember that his sister had such an incident in the original timeline. (End of this chapter) Chapter 21 Technology serves the country Chapter 21: Serving the Country with Technology "elder brother?" After a few seconds of silence, Chang Jiayao broke the silence first. Why do you suddenly have such an idea? ?Female pilots are not recruited every year in this era, but Chang Haonan does know that next year, in 1997, the army will recruit the seventh batch of female pilots. ?Therefore, Chang Jiayao''s idea is most likely not a temporary hothead. I think the possibility of me surpassing you in the college entrance examination score is basically non-existent, but you failed to recruit pilots back then. If I can succeed, it will be considered as surpassing you in another aspect. Is that why? ?Chang Haonan is a little unbelievable. In his impression, Chang Jiayao is not a very competitive person. Chang Jiayao was silent for a long time before replying: "After I entered high school, the teachers had only two reactions when they saw me for the first time. Some would call me Teacher Zhou''s daughter, and more would She will call me Chang Haonans sister. Chang Haonan lives in a county town, and he is the best student in that high school since its establishment. Obviously, although Chang Jiayao is more favored at home, she did spend two years of high school life in the shadow of Chang Haonan. "If this is indeed your decision after serious consideration, then I support your idea." Chang Haonan changed the microphone to the other hand: "But you must not drop your studies because of this. There are also performance requirements for recruitment. , and its still very high, probably similar to the main line. In the 1990s, the later one was called Key Undergraduate Education and the second one was called General Undergraduate Education. "Well, I know." Chang Jiayao replied seriously: "But I...I''m afraid that our mother won''t agree with this. You...can you help me play the drums when you have time?" No problem. Chang Haonan nodded. After hanging up the phone with his sister, Chang Haonan took a few minutes to recover from the shock. Obviously, due to the influence of some unknown factors, or maybe because of this well-timed phone call, Chang Jiayao made a completely different choice from her previous life. The airflow generated by the butterfly''s flapping wings has gradually begun to have an impact. Then let me stir up a more violent storm Chang Haonan looked at the sunset on the horizon and muttered to himself, then took out his phone card, got on his bicycle, and rode quickly towards the canteen. Even with the help of two wheels, when he arrived at the canteen, he found that it was already full. In the end, I had to order a large potato shredded burrito to eat on the way back to the dormitory in the cart. By the way, I returned Teacher Yan Lus bicycle. When he walked to the door of the canteen, he saw a familiar figure. ?That was Yao Mengna who was also about to leave the canteen, with a man and a woman beside her. And the other party obviously noticed Chang Haonan not far away. Considering that he was now considered a prospective student of Academician Du, he planned to go over to say hello and acknowledge his relationship first. Yao ?However, before he could speak, he saw Yao Mengna turning her head and leaving quickly in the other direction. ??? Such a strange reaction filled Chang Haonan''s head with questions, but for a while he couldn''t think of any way he had offended this future senior sister. "Obviously the last time we met was normal..." Chang Haonan scratched his head, sighing in his heart that women are indeed troublesome, and took a bite of the burrito in his hand.????It tastes good, but its a pity that there is no meat in it. Chang Haonan did not find Yan Lu in the office in the dormitory area, so he had to park the bicycle downstairs and lock it, then put the key in a conspicuous place on her desk, and finally wrote a note under the key on a piece of paper. Whewwhat a beautiful day. Chang Haonan put his hands in his pockets, humming softly to the melody of "Tell the World, Tell the Future" that did not exist at this time, and prepared to go back to the dormitory to catch up on his sleep. But he met an unexpected person at the door of his dormitory building. Old Wu? ??Wu Yifan has not been back to the dormitory for more than a year. It is easier to see him here than to see Du Yishan in the aircraft department building. Nan Shen, I just went to the dormitory to look for you. Whats wrong? Chang Haonan was stunned. The relationship between the two is good, but because they have different pursuits, they rarely talk about important things. I have something to do here, and I want Nan Shen to help me. Wu Yifan looked around like a thief and made sure no one was nearby before he came over in a low voice and said: "There is a new domestic air-conditioning brand that wants to replace the axial flow fan of their first indoor unit with a domestic one. I know a boss who makes air-conditioning parts and wants to take over this order, but after testing the samples provided, the other performance was OK, but the noise was extremely loud, so he wanted to find someone knowledgeable to help improve it. ?Although fans and aircraft do not seem to have a direct relationship, the essence of aerodynamics will not change, so this can be done. ? And considering that in the previous J-7 improved project, Chang Haonan has gained experience in programming and simulation using computers of this era, and the system may not even need to be launched again. But this life is very troublesome. ??Still with the same problem, the current fluent cannot generate a clear static pressure distribution cloud diagram. It needs to be calculated point by point and then drawn by hand on graph paper. The shape of the fan blades is extremely unfriendly to this process. Old Wu, its not that easy to do this with Fluent The boss said he could give you five thousand yuan, and well split it 28/20, and you get 80% after tax. Wu Yifan interrupted Chang Haonans casting movement with one sentence. So you are right to come to me, others may not be able to do it. Chang Haonan took a deep breath and rounded out what he just said: "Do you have all the information and computer with you?" "Why are you in a hurry? I just came to ask for your opinion. After I go back, I have to sign a contract before starting work. Although the boss and I have known each other for a long time, I am not afraid of ten thousand, just in case." ??Wu Yifan rubbed his hands as he spoke: "If everything goes well, I will bring you the information at noon tomorrow, as well as a computer and a deposit." "make a deal." Hearing Chang Haonan''s answer, Wu Yifan finally breathed a sigh of relief and said half-jokingly: "I thought someone like you, who is dedicated to serving the country with technology, would refuse." "You are so narrow-minded." Chang Haonan waved his hand and said sternly: "I use my technology to help domestic brands win the market and earn my share of the money. Why can''t I use my technology to serve the country? You can make this kind of money If you dont make money, I wont make money. Should we let those compradors and foreign companies make money? Before Chang Haonan was reborn, he had seen too many people with twisted mentality. Some academicians would be criticized for wearing brand-name clothes or even looking at the luxury cars on the booth. It was as if scientific researchers were not counted as long as they made money or wanted to make money. Its the same as making a contribution to the country. Similar ideas are also found in other fields. In the final analysis, it is to raise the standard of patriotism to the level of a saint who has no desires and desires, thereby dividing the vast majority of people into another camp. (End of this chapter) Chapter 22 Academician, please do the graduation project [Please follow up! 】 Chapter 22 Academicians please do your graduation project [Please follow up! ??Wu Yifan just acted as a middleman and could get 1,000 yuan without doing any specific work. ?However, Chang Haonan knew that he couldn''t do this kind of work that required skill in all aspects, so he didn''t feel jealous. After returning to the dormitory, everyone was there except Wu Yifan who had just left. Haonan, I heard that you were specially called over by Professor Liu this afternoon? The speaker was Liang Hao, the eldest brother in the dormitory and a member of the dormitory card club. At this time, they were sitting together as usual, holding cards in their hands, but everyone''s attention was drawn to Chang Haonan. . Yeah, what did Professor Liu tell you? Another person directly put the playing cards in his hand on the table: Have you been asked to go to his graduate school? The mentality of the few of them is basically just out of curiosity about the incredible academic master in their dormitory. ?Although all college students who graduated in 1997 are no longer allocated, because the number itself is very scarce, it is not difficult for Beijing Airlines undergraduate students to find high-paying jobs after graduation. In fact, a few years ago, many graduates did not like the assigned jobs and chose to sign contracts directly with employers, especially foreign companies. In this environment, many students have no idea of ??continuing their studies from the beginning. Wouldnt it be great to make money directly after graduation? ?Hence, even if Chang Haonan really gets a postgraduate placement, the most people can say is that he is really awesome. Let alone jealousy, the feeling of envy is actually not very common. Its just that this group of people obviously does not include Huang Zhiqiang. He was on the upper bunk and pretended to read a book seriously without raising his head, but he had already pricked up his ears and paid attention to the conversation going on below. "That''s not true. In fact, Professor Liu and I didn''t even exchange a few words in the afternoon." Chang Haonan took off his schoolbag and lay directly on his bed: "And I probably won''t go to his graduate school." "Ah?" The three people next to the table were shocked. One of them even dropped the cards in his hand: "Why? In the morning, I felt that Professor Liu wanted to accept him as a disciple on the spot, so why not let him go now? Are you a pig?" Huang Zhiqiang, who was sitting on Chang Haonan''s upper bunk, was elated when he heard this answer. ??He was worried that his approach in the morning was too tactful and might not be effective, but he did not expect that Professor Liu Hongbo was incredibly efficient and found out the "truth" in just a few hours. As for what happened in the afternoon, he guessed that Liu Hongbo probably called Chang Haonan over and gave him a strong scolding. "Hey, are you worthy of snatching my recommendation quota?" ??Huang Zhiqiang could no longer suppress the smile on his face, so he had to turn around and face the wall to avoid being seen by other people. At the same time, Chang Haonan also realized that several roommates might have misunderstood, but at this moment, the dormitory door was knocked again. ?Everyone looked at each other in confusion. In the end, Liang Hao quickly put away the poker cards on the table and on the floor, then stood up and opened the door. Its Sister Lu again. Is Huang Zhiqiang in the dormitory? Professor Liu Hongbo wants to see you. Yan Lu stood at the door and did not go inside. In summer, when there are many people in the boys dormitory, the smell is indeed not very good. "Huh? I''m here!" Huang Zhiqiang jumped up from the bed almost instantly: "Wait for me to change clothes, and come over right away!" From his point of view, it was natural that after Professor Liu Hongbo discovered Chang Haonan''s "true face", he wanted to negotiate with him about recommending graduate students. By the way, Sister Lu. Chang Haonan turned over and looked at Yan Lu outside the door: I left your bicycle key on your desk for you, remember to pick it up. "I''ve got it." Yan Lu stretched out her hand and shook the key in her hand: "Huang Zhiqiang, you can also ride over. Professor Liu told me that he was looking for you in the afternoon, but you were not in the dormitory at that time." While saying these few words, Huang Zhiqiang had already changed his clothes. Before going out, he looked at Chang Haonan with a slightly contemptuous look, which made the latter a little confused.????After handing the key to Huang Zhiqiang, Yan Lu did not leave immediately. By the way, Chang Haonan, what did Academician Du say when he came to see you this afternoon? With one sentence, the air in the entire dormitory became quiet, as if you could hear a pin drop. The playing cards Liang Hao had hidden behind his back fell to the ground. But he didn''t pick it up. Du...Academician Du? Liu Ran, who was looking down at a magazine, raised his head in astonishment. As a member of the team, he certainly knew what Huang Zhiqiang did in the morning. Although he did not participate at the time, he did not stop it. Liu Ran''s family background is average and he is ready to work after graduation. He followed Huang Zhiqiang simply because he wanted to get high marks with less worry, so that his transcript would look better and he would have some advantages when looking for a job. So his mentality has been very stable today. But when he heard Yan Lu''s words, Liu Ran still couldn''t hold himself tight. Yes, Academician Du called this afternoon and said he was looking for Chang Haonan, and Professor Liu later called and said he was looking for Huang Zhiqiang. This dormitory of yours is really awesome. Yan Lu is just the messenger, so she can only blindly guess the purpose of the two bosses. Academician Du wants me to do my graduation project in his name. After all, the matter of studying for a Ph.D. has not yet been determined in terms of procedures. Chang Haonan''s character will not publicize it everywhere, so he only talked about the graduation project. ??However, as a veteran who has been with Beijing Airlines for three years, everyone basically knows what this means. It was not Liu Hongbo who let Chang Haonan go. But he was intercepted by Academician Du... Im sorry, Haonan Nanshen! Even Liang Hao was a little envious this time: Youre so developed! A student who can become an academician is already very good. As for Chang Haonan, the academician took the initiative to invite him there. This is a completely different level again. Liu Ran, who was in the upper bunk next to him, couldn''t help but sigh and shook his head slightly as he thought about Huang Zhiqiang''s performance this morning. Obviously, not only did his team leaders plans come to nothing, but he might have even made wedding clothes for othersafter all, if Huang Zhiqiang hadnt done that, Professor Liu might not have alarmed Academician Du. Thisits unreasonable not to invite guests. The dormitory quickly started to boo. ?This can also be regarded as a traditional program for college students. Whether it is getting out of singles, winning a prize, guaranteeing a graduate degree, or other things worthy of celebration, the host must express it in some way. It doesn''t matter what you eat, the main thing is that there must be such a process. Dont worry, Ill be with you. Chang Haonan lay on the bed, waved his hands, and said in a slightly tired tone: But now you have to let me have a good sleep. (End of this chapter) Chapter 23 Stealing the chicken will lose the rice Chapter 23: Stealing the chicken but losing the rice At the same time, Huang Zhiqiang on the other side was not in such a good mood. ?Originally, he thought that Liu Hongbo would ask him to go over and discuss graduate studies directly. However, after entering the office, he was asked a lot of questions related to course design. ??And these questions are very strange. For example, why you want to design a seaplane. What was your thinking when you first started designing? Have you encountered any difficulties and how did you solve them? In short, it seems to have little to do with the design itself. Fortunately, he had read the design manual many times, and many questions could be solved directly using the contents in it. The awkward conversation lasted for almost half an hour before Liu Hongbo finally let him leave the office. Damn it, this guy didnt even look at our design plan. After leaving the teaching building, Huang Zhiqiang got on his bicycle and muttered to himself. Because many of Liu Hongbo''s questions just now were actually written in the design instructions, he had to answer them again exactly as they were. ?However, he quickly found what he thought was a reasonable reason: Maybe he doesnt understand the design process at all, so he brought me here ??That''s right, in fact Huang Zhiqiang has always looked down on teachers like Jinghang. In his opinion, these people themselves know little about aircraft design, so how can they teach students? The reason why I continue to waste time here is just to find a stepping stone so that I can go abroad to a better school in the future. Forget it, never mind... ??Huang Zhiqiang quickly decided not to consider this strange thing anymore. Anyway, the threats from Fang Haonan and Zhou Shuwan had been eliminated, and he would have one of the guaranteed graduate positions in the department anyway. ?However, ten minutes later, when he returned the bicycle to Yan Lu and returned to the dormitory, Liu Ran quietly dragged him to a corner of the corridor. Brother Qiang, let me tell you, Chang Haonan... "What? Du Yishan?" Huang Zhiqiang frowned, and his slightly narrowed eyes were full of confusion. He doesnt understand. ??You can obviously see that the fighter plan could never have come from those people. Why can''t Liu Hongbo and Du Yishan just see it? Is their level really that bad? Or ? Huang Zhiqiang clenched his fist, gritted his teeth and punched the wall next to him. Brother Qiang? Liu Ran looked at Huang Zhiqiang, who was already a little stunned, with a look of disappointment in his eyes. ?Compared to Chang Haonan, who was personally recruited by Du Yishan but still maintained a calm demeanor, Huang Zhiqiang''s current appearance is really far behind him. ??The reason why he took the other person to come out alone to talk about this matter was to prove that there was nothing wrong with the design plan of Chang Haonan''s team. We all met in the same dormitory without looking up, so there was no need to make the relationship so tense. ??But Huang Zhiqiangs ideas are obviously different from his. "Students, they''re all just students..." Huang Zhiqiang shook his head: "Oh, even though I knew it was copied, I just knew how to protect my feathers, a bunch of idiots who can''t even understand the design of a hydroplane..." Having said that, he still planned to study at Jinghang University after all, so he could only vent to the void, then left Liu Ran behind and returned to the dormitory alone with a gloomy expression. Behind him, Liu Ran sighed softly, and then shook his head helplessly. The next day, nine o''clock in the morning. ?Du Yishan is sitting at his desk, holding his chin in one hand and holding a red pencil in the other. What was placed in front of him was the first draft of the paper that Chang Haonan had just handed in. Although the overall content is very different from the previous design description, it is not easy to organize it into the format of a paper in just one afternoon. After all, it has to be written again. ??Furthermore, Du Yishan originally thought that as an undergraduate had little experience in writing papers after all, there would be many areas for him to revise. However, it didnt. ?Chang Haonan''s writing style is quite skillful. Du Yishan estimated that he had to read at least hundreds of papers in related fields before he could achieve such an effect when he first started writing. In the end, he only made some changes in the data that needed to be hidden, and left the other parts untouched. "What a good young man who has both talent and hard work... I''m embarrassed to add his name." Du Yishan put the pencil aside, picked up the water glass and leaned back on the chair, taking off his glasses and rubbing himself. corner of the eye. As he gets older, he can already feel that his energy is getting less and less every year. The other side. ?Chang Haonan soon waited for Wu Yifan at the entrance of the library. ?Following the latter was another man who looked a little older, carrying a portfolio made of brown paper in his hand. This is a technician from the company I mentioned before and the bosss brother-in-law, named Hao Dagang. This is the boss I invited to help you solve your problem, Chang Haonan. Wu Yifan briefly introduced the two to each other. ?In this era, the identity of the boss''s brother-in-law has not been given certain stereotypes, and it basically means the "boss''s confidant". "Hello, classmate Chang." Hao Dagang''s attitude was quite polite, and he handed the file bag in his hand to Chang Haonan: "This is the relevant information about our fan blades. Take a look at it first. If we are sure it can be done, we will sign a contract. The latter found a bench and sat down, pulled out the information inside and started reading it. This leaf shape was designed by...you yourself? Chang Haonan originally thought that he would see some kind of NACA standard blade shape, or simply a blade that was drawn at random, but the information not only provided a design drawing, but also detailed the design method of the blade shape. Obviously, the technical personnel of this company are not aimless. "Yes, I designed it together with my boss. Although it is very good compared with other domestic brands, it is still noisy compared with Fuji Electric products." Hao Dagang said with a little unwillingness in his tone: Because it is a new air conditioner model, the fans that everyone brings out are also new designs. On the one hand, we cannot get samples from Fuji, and on the other hand, we dont want to keep copying others. "It is a combination of two Bezier curves and two arcs, with a total of 16 modeling parameters, which is very flexible." Chang Haonan nodded repeatedly and couldn''t help but praise: "Your mathematics level is quite good. " Although from the perspective of later generations, this is not a very good design, but compared to most of the peers in this era who only copied the standard leaf shape, it is already rare to have one''s own ideas and designs. (End of this chapter) Chapter 24 Parametric reconstruction of blade airfoil and stacking lines Chapter 24 Parametric reconstruction of blade airfoil and stacking line You are worthy of being a top student of Beijing Airlines. You can tell at a glance, but I cant compare with you. I started working right after I went to a technical secondary school, and then I came out to do business with my brother-in-law. Hao Dagang waved his hand. "I''m being modest. The previous technical secondary schools were no easier to pass than the university entrance exams." Chang Haonan looked at the blade design in his hand: "If you think of nothing else, the wicker leaf shape that combines two Bezier curves is really very good. Its better than many undergraduate students. ?Wu Yifan next to him suddenly felt that there was something wrong with these words... Sigh... Whats the use of all this? Its not that I cant beat Fuji Electric. Although I dont like notebooks, I cant beat a small fan. Hao Dagang touched the top of his head and sighed: "I wonder if you can improve it?" Unknowingly, his address to Chang Haonan has become you. Well...Although Bezier curves are used a lot in aircraft airfoils and turbine machinery, the problem is still quite obvious. Chang Haonan replied: "First, it cannot make local control modifications. Any changes will affect the entire curve. At least half of the 16 parameters in this design are not independent; second, it cannot accurately express quadratic curves such as arcs, so regardless of No matter how you adjust the parameters, the smoothness cannot be guaranteed at the connection points between Bezier curves and arcs on the leaf profile. ?Seeing that Chang Haonan spoke eloquently, Hao Dagang''s face was full of excitement and anticipation: "It seems you have an idea?" ?Chang Haonan nodded and looked at Wu Yifan next to him: "Old Wu, sign the contract." Strictly speaking, Chang Haonan should be regarded as a subcontractor, but Party A of this subcontractor had the knowledge and consent. After signing, Hao Dagang took out a kraft paper envelope directly from his bag and stuffed it into Wu Yifan''s hand. Deposit, RMB 1,000. At this time, it is not a small sum of money. The latter opened the envelope and checked the amount of money, then took out two "four heads" and put them into his pocket. Finally, he handed the envelope to Chang Haonan together with the remaining money. The deal was concluded. Ill leave it to you two to optimize the blade shape. This time our boss is determined to win the order for Changhong air conditioners. I hope you can take care of me. After Hao Dagang put away the contract, he stood up and hugged Chang Haonan and Wu Yifan directly. He seemed to be a bit of a gangster. ?But it is reasonable. If you are doing business in this era and dare to run around with cash, you will always have something after all. After sending Hao Dagang away, Wu Yifan took off the schoolbag behind him and handed it to Chang Haonan: Nan Shen, how long will it take to do it? "It''s hard to say, but it will only take about a week." Chang Haonan took the backpack, which contained a laptop and floppy disk that he had become very familiar with over the past half month. One...week? ??Wu Yifan''s hands shook. Fortunately, Chang Haonan had already grabbed the strap of his backpack, otherwise the computer inside would have collapsed before it could exert its full value. They told me that the original plan took more than two months to design. Well, their basic design is actually good. I will use non-uniform rational B-splines (NURBS) to parametrically reconstruct the fan blade airfoil and stacking lines, and just make a few improvements. Non-uniform...what? ??Wu Yifan suddenly felt that not only did he not learn well in his professional courses, but he might not have learned Chinese well either. It seems like you didnt attend class well last semester. Teacher Shi Fa taught you all about computer-aided geometric design. ?In order to adapt to his current status, Chang Haonan spent half a day reviewing the classes he had taken in the previous semesters. It was impossible to make any mistakes this time. "Huh? What the heck..." Wu Yifan suddenly felt a pain in his body. If he had listened to the class well last semester, he would have earned five thousand yuan now instead of just one thousand yuan. But this illusion was soon extinguished. Dont think too much. Teacher Shi only teaches the theoretical basis. The difficulty lies in the implementation. Chang Haonan patted Wu Yifan on the shoulder. In fact, this is not the first time that Chang Haonan has done this job. At the beginning of the 21st century in the previous life, he also used a similar method to design an axial flow fan with almost the same size for the Changhong Group. ?The predecessor of Sichuan Changhong Group was, after all, a military industrial enterprise that manufactured fire control radars. Although it later became a private company, it is still inextricably linked to the aviation industry. It is not unusual to entrust the latter to help with technical research. "Okay, I can''t earn your money." Wu Yifan shook his head and resigned, then took out a notebook from his pocket, wrote down a series of numbers, and tore off a page. This is my pager number. Once youre done, just ask the paging station to send me a completed message. By 1996, Chinese display pagers were already very popular. They could not only display numbers, but also receive short messages with a limited number of characters, similar to the Youth Lite version of SMS service. ??Chang Haonan had already put on his bag and walked towards the library. He just waved his hand behind to indicate that he heard. ??Although the exam week in the second semester of the junior year of the Department of Aircraft Science is very leisurely, it does not mean that the same is true for other majors and grades. ?Hence, the library was undoubtedly overcrowded, and there were even many people sitting on the floor. So after borrowing a few reference books, Chang Haonan had a simple lunch and went to the computer room again with his things. Even though he didnt use the system this time, his work efficiency was still quite high. After all, he had a serious scientific research background in his previous life. How could he not even be able to complete such a small project. It''s just that it was supposed to be a step-by-step process, but after doing it, Chang Haonan began to feel a little dissatisfied. He was less than thirty years old when he worked on the project for Chang Hong. He was a newly graduated engineer. After that, he went through twenty years of experience and completed an overall design under the guidance of the system. The height has naturally far exceeded that of the past. Its done, and the performance should meet the requirements, but... Chang Haonanqie went out and took a look at the design document - there was no standard format for doing a project for a small business, so he directly used the electronic version of the design document, and then just saved it on the computer and gave it to Wu Yifan. The design object is, after all, just an air conditioner blade, and the rotational speed and gas flow rate are not very fast, so there are a lot of approximations and omissions in the design document. Its not transparent enough Chang Haonan said to himself in front of the screen. ?These approximations and omissions are certainly acceptable in the field of home appliances, but now he has some new ideas. You should be able to do better. Axial fan can essentially be regarded as a simple compressor. As an impeller machine, since the air flow in the compressor is a dilation flow, flow separation is more likely to occur and is more serious. ??Although axial fan blades with stable working conditions do not need to consider stall or surge issues, efficiency losses due to the continuous development and accumulation of the end arm boundary layer, as well as noise caused by refraction of the boundary layer, still exist. In the past, because most OEMs only required fans to meet flow requirements and were not very strict with efficiency, noise and other requirements, no one paid attention to this issue. But now that they have to fight with Fuji Electric In terms of performance It seems that we can refer to some design ideas of aircraft engine turbine compressors? (End of this chapter) Chapter 25 Thoughts inspired by fan blades Chapter 25 Thoughts inspired by fan blades ?Chang Haonan thought this way, and saved the completed first version of the design file, and then copied a copy to another new folder. No matter what field you are in, as long as you are a drawing dog, you must bear in mind the six words "save diligently and keep many files". Because this is the experience gained by countless ancestors with **** lessons. Folder renamed: Blade Design 2nd Edition. Even though Chang Haonan gained some status before his rebirth, he could only be regarded as a cog in the aviation industry. He did not have much experience in aero-engine structural design, but he still knew some basic theories and methods. So it is equivalent to practicing on this low-difficulty project. It is impossible to apply flow separation active control technology to such a small fan. It is better to consider starting from the blade shape. In this case, you can consider changing the original radial blade design to a swept blade... Select three points in the blade spanwise direction and use Lagrangian interpolation to obtain the equations used after the model is updated. The distance from the rotor center to each blade section must also be constrained to ensure that the blade area cannot increase after the design changes..." ?Chang Haonan pulled out a piece of scratch paper from the side and began to outline the steps on it. The first step is to define the three points from the leftmost to the rightmost on the straight blade as A\'', B\'', and C\'', and the corresponding three points A, B, and C on the curved blade. Let A and The coordinates of point A\'' are the same and set as the origin, and then Lagrangian interpolation is used for the three points of the curved blade. In the second step, add a constraint to the coordinates of point C, that is, the length of the connection between AC cannot exceed the original straight blade radius R, otherwise it will cause friction with the inner wall of the duct. The third step is to use Isight to integrate ICEM-CFD and Fluent to numerically optimize the blade design and ensure that the swept area of ??the curved blade is equal to that of the original straight blade, and the airfoil chord length and placement angle at each radius section remain consistent. As for this optimization process, it is another process that requires finding rules and optimal solutions through trial and error. After determining the basic idea, the remaining work is only one word. liver! ?Chang Haonan reopened CATIA and began to make modifications based on the first version of the blade. ?However, as the design of the second version became more and more perfect, his movements slowed down. The main value of simulation is to find direction. After all, it cannot completely replace experiment. ?In the absence of insufficient theoretical basis, relying on luck to reduce the consequences of experiments and forced simulations has been proven by the Boeing 737max in later generations. When designing the improved version of the J-7 before, the final step given by the system was to blow the wind tunnel, but it was just not possible due to objective conditions. Hence, Chang Haonan used a double ellipsoid model to verify the credibility of the calculation method despite the systematic endorsement. ?Besides, it is just a course design after all, and there is no need to actually produce a product. But this fan is different. There is neither systematic guidance nor a standard model with known performance to verify the simulation method. And I was going to take my stuff to confront Fuji Electric. ?Especially after he carried out the curved design of the improved first version of the blade, the applicable simulation methods have changed. This makes it more difficult to accurately obtain the improved performance. Not only did Party A feel unsure about what he was doing, but Chang Haonan, the designer, also didnt know how much he had improved after being so busy. You still have to find a place to do the experiment. He saved the second version of the design on the screen, and then realized that it was completely dark outside. Looking at the time, its almost time for the computer room to close. "I''ll go find Academician Du tomorrow and see if he can help me find a place to conduct experiments..." Chang Haonan stretched out and started to put the things on the table into his schoolbag, and secretly felt lucky that he went to the cafeteria for lunch. Lunch, otherwise I might faint from hunger now. The public security in this era is far from what it will be in the future, where you can go out and wander around in the middle of the night with peace of mind.?????In order to prevent students from getting into trouble, the school is strictly closed at night. So even though Chang Haonan had 800 yuan in cash, he couldn''t find a place to eat. Having no choice but to go to bed hungry. Early the next morning, Chang Haonan took a simple shower and went to Du Yishan''s office with his computer on his back. Hey, Xiao Chang? ?Du Yishan was startled when he saw that the person who came in was Chang Haonan. He looked at the phone he just picked up and thought to himself, why didn''t he call out before the other person came? Teacher Du! Chang Haonan was not angry and moved a stool directly to sit next to Du Yishan. "How do you know that I have finished revising the thesis?" Du Yishan tidied up the manuscript in front of him and pulled out Chang Haonan''s thesis from the pile of books next to him. "Well" "There is almost nothing I can change about your paper." Du Yishan just asked casually, so he continued without waiting for Chang Haonan to answer: "In this case, it would be inappropriate to put my name on it." "Teacher Du, what are you talking about..." Chang Haonan was interrupted by Du Yishan in the middle of his words: "Do you think I am not the fifth author of an article?" Then...you hang up the call? ?Du Yishan''s hand reached out to the triangle ruler placed on the table. "No, no, no, I''m just kidding..." Chang Haonan quickly stopped him. "You will be contacted for writing and communication. If people within the aviation system are interested in this thing, they can contact you." Du Yishan sorted out the manuscript paper in his hand: "In this case, if you want to send the paper out as soon as possible, You can consider the Journal of Aviation co-sponsored by our school and the Chinese Aeronautical Society. Are you just submitting it to the journal of your own school? If you say it out loud, it may seem a bit watery. If you polish this article, it will be submitted to the Progress of Aeronautics and Astronautics Science. Its a bit aggrieved. ? Progress in Aerospace Sciences, also known as Progress in Aerospace Sciences, is the top journal in the field. Although in principle only review articles commissioned by the editor-in-chief will be accepted, articles with significant pioneering significance submitted by veterans in the field will also be included exceptionally, which shows the importance of Chang Haonan''s article in Du Yishan''s eyes. The latter had previously considered adding his name at the end for this reason, otherwise the editor would have just glanced at the author and title and thrown it into the trash. Although the Journal of Aeronautics and Astronautics already has an English version, it has not been included in SCI in this era, and the quality is indeed inferior. ?However, for Chang Haonan, with more than 20 years of experience and systematic guidance, he doesnt care too much about where the paper is published. As long as it can be seen by your own people. "It doesn''t matter. I believe that the contribution of our China Airlines people is not reflected in the paper." Chang Haonan replied without hesitation: "The purpose of publishing this article is also to communicate with my own people. The Journal of Aviation is here Its enough. Chinese journals in the field of engineering, especially top Chinese journals such as Journal of Aeronautics and Astronautics, are still read by people in the industry. ??If what Chang Haonan has produced is a basic result in the field of mathematics or physics, then he will definitely publish it to SCI without hesitation, because I am afraid that even his own people will not read the Chinese journals in these fields... "It''s good to have this attitude. But you don''t have to hide what should be published." Du Yishan smiled happily. He found that he had underestimated the consciousness of the undergraduate in front of him: If there are really results that cannot be published even after declassification, it will be written as a national defense report. At that time, it can be recognized as an equivalent paper, and it will still be counted against you. ?Chang Haonan did not answer, just smiled and nodded. Compared with these, he is still looking forward to what kind of butterfly effect the content of the paper will trigger. (End of this chapter) Chapter 26 Issue a patent Chapter 26: Issue a patent By the way, Teacher Du, this is actually why I came to you this time... ?Chang Haonan took out a floppy disk from his bag and handed it to Du Yishan. After looking at it twice, the latter inserted the floppy disk into the computer next to him. ??Although Du Yishan is very old, his ability to accept these new things is not bad, and his computer is naturally equipped with various engineering software. This is the compressor ? ?The fan blades have changed a lot after adopting a large number of curved and swept designs. At first glance, Du Yishan thought that this precious student had designed a compressor blade by himself, but after taking a closer look, he quickly discovered that something was wrong. If nothing else, the size alone doesnt match. This is a fan blade that I improved using certain design ideas in the aviation field. Fan blade? Du Yishan glanced at Chang Haonan behind him: You take the job from outside? "I can''t hide anything from you, Teacher Du..." Chang Haonan quickly extended his thumb. "Okay, okay, stop flattering." Du Yishan waved his hand: "I''m not that kind of old timer. Scientific researchers rely on their own knowledge to earn income. This is allowed by the policy and is also advocated by the school. But you have to pay attention. The first is not to delay the main business, and the second is not to fall into the enemys sugar-coated bullets. Tell me, what do you want me to do for you? Chang Haonan quickly expressed his thoughts: "I now want to find a place to actually test the performance changes of the fan before and after the improvement, mainly efficiency and noise." "Well...I can write a note. Our college happens to have a fan duct test bench, which is together with the low-speed airfoil wind tunnel. You can use it." Du Yishan said, pulling out a stack of manuscript papers from the bookshelf and tearing off one of them. One: "But I can only wait until after get off work, and can''t delay other people''s normal work." ?Chang Haonan quickly took the note and thanked Du Yishan. By the way, Xiao Chang. Just when Chang Haonan was about to leave the office, Du Yishan suddenly called him from behind. If your improvement is really effective, remember to submit a patent application first and then hand over the plan. There are teachers who have suffered from this before. As a science and engineering university, Beijing Airlines naturally has its own metalworking center. On the one hand, it provides students with metalworking training, and on the other hand, it processes various things from glassware to metal parts for research groups in need. There was no 3D printing these days, so it was very troublesome to produce individual plastic parts. So in the end we had to adopt a compromise solution, which was to mill out a metal part and then cover it with a layer of plastic. For the research Chang Haonan is planning to conduct, apart from the heavier metal parts that may cause greater noise, there is no other impact. After spending 180 yuan and waiting for a day, Chang Haonan got the six fans that were expedited. 1 original design, 1 improved first version design, and 4 second version designs using different bending methods. I have to say that the craftsmanship of the old masters is indeed excellent, and the shoddy workmanship problem that he was most worried about did not arise because of the urgent need. Especially, the mass distribution of several fans is very uniform, which is very important for fans that need to rotate at high speed for a long time. If the center of gravity is not on the axis of the fan, it is equivalent to eccentric rotation, which will have an impact on life and performance, let alone accurate data. It is night, the moon is dark and the wind is high, which is a good time to do experiments. Since the national standard GB/T1236 for air ducts for industrial ventilator testing has not yet been promulgated, the current testing equipment is basically diverse. Fortunately, the basic principles are the same, so Chang Haonan spent about ten minutes to figure out the test operation method, and then used unskilled movements to install the first fan on the speed control motor, and then put the pressure on the U-shaped tube Insert the meter into the static pressure hole. As for the dynamic pressure, it can be read directly with a pitot tube pressure gauge. There is no way, he really hasn''t used such a simple device in some years. Just as Chang Haonan was clumsily replacing a throttling loading plate with a 20% flow area, the door of the laboratory suddenly opened. "who!" "who is it!" Two voices shouted almost at the same time. ?Especially Chang Haonan, who was concentrating on the experiment, was almost frightened. Who are you? Why are you in this laboratory? ??The man who walked in from the outside was a gentle boy who looked a little nervous. After all, the public security was not good these days, and no one could say whether there would be a thief in the school. And Chang Haonan felt that the other party seemed a bit familiar. I am an undergraduate student of our school. I came here to take a test. Academician Du Yishan signed the permission. ?Chang Haonan quickly identified himself to avoid misunderstanding. ?Sure enough, after hearing his explanation, the other party''s mood obviously relaxed a lot: "Academician Du?" Uh...yes, my supervisor for my graduation project in the second half of the year is Academician Du. While speaking, Chang Haonan finally completed the replacement of the throttling loading plate, and then handed the other party the note from Academician Du in his pocket. "Huh?" Unexpectedly, after seeing Du Yishan''s signature, the other party''s expression became more confused, and he touched his hair with one hand: "Why didn''t I know?" "you are" "You don''t have to. My name is Fang Zhen. I am a graduate student in Teacher Du''s research group and am in the third year of my PhD." Although Fang Zhen was still a little confused, Du Yishan''s signature on the note was definitely authentic, and it seemed unlikely. Some people pretend to be academicians and students just to borrow the laboratory. But he is the senior brother of the laboratory. Why didn''t anyone tell him about the new junior brother? "My name is Chang Haonan. I just made an agreement with Academician Du two days ago that he... will come to our group to do the graduation project." After Fang Zhen introduced himself, Chang Haonan finally remembered that he had met him in the cafeteria the day before yesterday. At that time, he He was walking with Yao Mengna and another short girl. "Teacher Du generally doesn''t want to be a graduate undergraduate, so...although I don''t know why it was confirmed so early, you should already be our future junior brother." Fang Zhen said, walking up and shaking hands with Chang Haonan. . I will not officially join the group until the end of this exam week. Academician Du should be preparing to introduce me to everyone then. Chang Haonan checked the experimental equipment one last time, turned on the power after confirming that there was nothing wrong, and then continued: "The day before yesterday, I saw you and Senior Sister Yao Mengna at the door of the cafeteria. I wanted to say hello, but I didn''t catch up." Do you know Yao Bo? ?Fang Zhen suddenly felt as if he had become an outsider in the laboratory. Yes, I have discussed some academic issues with her. Chang Haonan nodded. Well, Yao Bo is very good. He skipped the masters degree and went directly to study for a Ph.D., which is an exception. It will really be beneficial for you to communicate more with her. Fang Zhens words were not false. After changing the simulation calculation method according to Yao Mengna, although the progress was almost reset, after nearly a month of trying, he was very sure that it was the right direction. In terms of ability, Fang Zhens self-confidence is not much weaker than Yao Mengnas. But when it comes to enthusiasm for scientific research and the courage to move forward, he knows that he is indeed much worse. (End of this chapter) Chapter 27 Are you Yao Mengnas senior? Chapter 27 Are you Yao Mengnas senior? ?Chang Haonan thought about the two encounters between himself and Yao Mengna, and felt that the other party seemed a little dull... ?However, he was not prepared to refute the senior brother he had just met on such a trivial matter. Hmm Indeed, she learns things quite quickly. Fortunately, the topic about Yao Mengna came to an end soon. Junior brother, are you testing the performance of some turbine blades? Fang Zhen looked at Chang Haonan, who was lowering his head to record data. No, its just an ordinary fan blade, but it uses some aviation engine design ideas. Its a good exercise for yourself. Chang Haonan told the truth. Although he only took this job because he wanted to make a lot of money at first, yesterday afternoon, he began to try to use the blade curved/swept design to control flow separation, and after simulating several different designs, he really got the idea. The control of flow separation within an impeller has led to some new understanding. Senior brother, you are here so late to do an experiment? Chang Haonan replaced a 30% throttle plate with a larger opening with a much more skillful movement than before. Thats not true. I left a book behind when I was using the low-speed airfoil wind tunnel during the day. Come and get it. Fang Zhen said, holding up a book about the DAMP language in his hand. "Huh?" Chang Haonan instantly caught the cover of the book and asked almost subconsciously: "You are quite efficient. Have you already started secondary development of MSC.NASTRAN?" "Huh?" Fang Zhen felt that he had used more interrogative words in the past ten minutes than in the past month: "How do you know we are doing this?" ?Chang Haonan scratched his head. "Uh... when I met Senior Sister Yao last time, she told me that you were using the CFD/CSD coupling method to do straight wing flutter analysis, but the efficiency was very low. I suggested that she try the dipole grid method. But we need to use DAMP language for secondary development of the software, and I didnt expect that you have already started doing it. ??However, Fang Zhen, who was holding a book opposite, was more surprised than Chang Haonan: "You mean you told Yao Bo this method?" "Yes." Chang Haonan nodded, and then told Fang Zhen the knowledge points he told Yao Mengna that day. For a time, the only sound left in the entire laboratory was the whirring sound of air flowing through the air dryer. Fang Zhen opened his mouth several times, but thousands of words were stuck in his mouth, and he didn''t know what to say. Finally, after about half a minute, Fang Zhen asked the first question with difficulty: "So you are Yao Bo''s senior?" "what?" ?This time it was Chang Haonan''s turn to look confused. "It''s nothing..." Fang Zhen suppressed his laughter very hard: "How about this, junior brother, you should join the team as soon as possible to familiarize yourself with the environment. I will go to the office tomorrow to clear a window seat for you with the best sunshine." "Yeah, that''s okay." Chang Haonan originally planned to take a few days off during the exam week and adjust his schedule, but since the other party has extended the invitation, it would be good to give him a little more time to adapt: ??"Then I''ll tell Teacher Du first and wait until the exam Tuesday. Join the group after the first exam. No problem, Teacher Du will definitely agree. The smile on Fang Zhens face could hardly be concealed. In order to prevent Chang Haonan from seeing his expression, he quickly turned his head slightly and happened to see the inconspicuous fans on the table next to him. At this time, the experiment on the first prototype fan blade shape has been successfully completed. ?Chang Haonan carefully replaced the second fan, which is the first version of the improved design. After restarting the power supply, even though this is not a semi-anechoic chamber for detecting noise, the difference from the previous one can be heard by human ears alone. The noise is obviously smaller. Theres something about the design of your fan. Fang Zhen leaned over and stared at the fans. Strictly speaking, they were four fans with curved blades and stared at them for a long time. "Can I pick it up?" As a graduate student who has been working in the laboratory for 6 years, he knows that samples must not be touched without permission from others. Just be careful not to fall. Chang Haonan is not afraid of being spotted. If Fang Zhen could analyze his design and calculation methods with just one pair of eyes, he would have become a protected object of the country long ago. This is...a forward-curved and forward-swept blade design? Fang Zhen asked with some uncertainty. In the field of engineering design, bending and sweeping are two different definitions. In fact, flow control is almost an eternal topic in aeroengine design, or turbine machinery design. The idea of ??controlling flow by changing the geometry of the cascade flow channels has been around since the 1960s and 1970s. Its just that for a long time, it has relied more on experience and intuition, lacking sufficient theoretical tools for guidance, so it is not surprising that Fang Zhen understands this. What Chang Haonan wants to do is to conduct a systematic study on the stacking forms of curved and swept blades on the basis of summarizing experience, so as to provide direction guidance for the design of other forms of blades in the future! ?Of course, this can only be said to be the beginning. Well, I am going to test the efficiency of different sweep effects on the impeller. Of course, this is just a fan, and the gas flow rate will not be very high. Chang Haonan had his hands busy while he was talking. He quickly changed to a new piece of graph paper and continued to draw on it. "You..." Fang Zhen originally wanted to say that it is too early for you, an undergraduate who is completing your project, to study this kind of topic. It is better to start with more practical problems first. But he quickly recalled the talent and learning ability that Yao Mengna showed when she first joined the group two years ago. And the undergraduate student in front of me... ?Although it has not been confirmed yet, Fang Zhen basically believes that the flutter simulation idea came from Chang Haonan. In other words, it may be more powerful than Yao Mengna... So he finally decided to shut up. "I don''t understand you monsters very well..." Fang Zhen shook his head and thought to himself. Senior brother, what did you just say? Chang Haonan turned around and looked at Fang Zhen, who was dazed on the spot after saying only one subject. Ah, I want to say that you have enough time to finish this project? Undergraduate graduation project is said to last one academic year, but generally speaking, excluding the time when you go home during the winter vacation and the time when you first start to get started, it actually only lasts four or five months, and it is usually something short and quick. This is not my final project. Chang Haonans final project is actually completed. "ah?" Fang Zhen became even more nervous. Even Yao Mengna spent more than five months in the laboratory to come up with the final result. After all, no matter how talented you are, some operations or experience-based things still need time to be polished. When he just entered the door, Fang Zhen saw Chang Haonan operating the equipment, which was not very skillful, so he subconsciously classified the latter as someone with rich theoretical knowledge but lack of practical experience. But on second thought, it would be nice to have someone who specializes in theory and simulation, which can save a lot of energy from other people in the laboratory. ?The only pity is that the current domestic foundation in this field is very weak, and there is not even much data. It may take a long time to produce results. ?But it doesnt matter, the undergraduate thesis is neither archived nor published. ?So Fang Zhen has even thought about giving some of his unpublished results to Chang Haonan for use first. At that time, his good impression of his senior brother will definitely increase gradually, and then... Then you can hand over all the simulation parts of your paper to him! Plan pass! Then Ill go back first. Junior brother, dont forget to lock the door when you finish the experiment. Fang Zhen gently put the fan back in place and left the laboratory in a good mood. He is going to bring a huge "surprise" to Yao Mengna. (End of this chapter) Chapter 28 We will have better things! Chapter 28 We will have something better! ?Chang Haonans experiment continued until dawn. The previous simulation and experimental results are exactly the same in terms of rules, which proves that his direction is correct, but the calculation accuracy in specific cases still needs to be improved. ?The best version has an efficiency increase of more than 25% compared to the original design, and the noise is reduced by an astonishing 10 decibels. Dont underestimate this number. Decibel is not a linear value. A 10-decibel reduction is basically equivalent to a drop to half of the original value in the perception of the human ear. This is already an exaggerated improvement. When doing testing in a semi-anechoic chamber, he could almost only hear the sound of the motor. ? Chang Haonan straightened his aching waist and moved his body slightly, listening to the crackling sound of his joints. ??His attention had been on the experiment just now, so he didn''t feel anything. But now that he relaxed, a sense of fatigue swept over his body instantly. Back in the dormitory, he fell asleep at the speed of light again after touching the pillow. This has almost become the norm since Chang Haonan was reborn. Perhaps it can be regarded as one of the benefits brought by the system. After all, he has had insomnia since high school. When I woke up, it was already afternoon. After simply washing up, Chang Haonan was going to change his clothes, then find an empty classroom to write out the patent document, and then go to the patent office to submit it. Just as he was about to go out, he happened to meet a few roommates who pushed in from outside. They must have just returned from lunch. Nan Shen, have you read this months magazine? "Magazine?" ?Chang Haonan has been sleeping since early this morning, so of course it is impossible for him to work hard. In fact, from the time he was reborn until now, he went to the library to read the latest news the night he was eating roast duck, and then he has been busy with design work. It says that our navy may need to buy two new destroyers. Liang Hao said, pushing a magazine he was holding over: Thats the first article. ?At this time, Chang Haonan also came to his senses. It should be about the two modern-class destroyers. If we can really buy these two ships, we will at least have a way to deal with the aircraft carrier. Liang Hao was obviously very excited about this. What use are two broken ships from the Soviet Union? The missiles above have a range of just over 100 kilometers, and they have to be sunk without even being able to see the shadow of the aircraft carrier. Huang Zhiqiang glanced at Chang Haonan next to him, and climbed into bed with a nonchalant expression: "Besides, the American Arleigh Burke has served sixteen ships. Have you heard of Aegis? It can stop any aircraft or missile, if you ask me. , dont dream about dealing with other peoples aircraft carriers. The inappropriate cynicism made the atmosphere in the dormitory a bit awkward. After this period of contact, Chang Haonan has roughly recalled that this Huang Zhiqiang is a standard exquisite person according to later generations, but it was rarely particularly obvious in the past. Perhaps I was stimulated by him recently, so I became a little jumpy. You really dont need to be too excited about this. Chang Haonan smiled nonchalantly and returned the magazine to Liang Hao. He never took the other party seriously from the beginning, and there were quite a few such people even after more than twenty years. Huh? I thought you should be the happiest one. ?Liang Hao was obviously a little surprised by Chang Haonan''s reaction. Lets see, in a few years we will have something better. After Chang Haonan finished speaking, he left the dormitory directly with the schoolbag containing the computer on his back. The review of utility model patents generally takes 6-9 months, so Chang Haonan naturally cannot wait for the results to come out before giving out the plan. Fortunately, patents are calculated based on the filing date, as long as you make sure to submit it earlier than others. ??If this is a formal horizontal topic, then the ownership of this patent should actually belong to the funder. But then again, setting up a horizontal topic cannot be as simple as five thousand yuan. In short, after spending two days going to the patent office and passing the final exams of the two elective courses, Chang Haonan finally contacted Wu Yifan through the pager. Considering that the house the other party rented off campus was still some distance from the school, after hesitating for a moment, he inserted the phone card back, opened the notebook he carried with him, and dialed his home number. "Hello?" When he heard his father''s voice again, his mood was much calmer than last time. Hello, Dad, its me. Yes, its exam week, but there are no important exams this semester. You are talking about the aircraft design course. There is no final exam in that course. There is a course design, which is the course I mentioned before about designing fighter jets. Well, of course its been designed, and I dont care whose son I am. "...It''s like this. Because of the course design, there is now an academician of our college, who is the former member of the academic department. He thinks that I have good potential and wants me to join the research group in advance to participate in research, so I will not go back during the summer vacation. Next time I should go back during the Spring Festival next year. Money is fine... I still have some money, so dont worry, I should have a scholarship in the second half of the year, dont worry. By the way, Jia Yao told me before that she wants to participate in next years recruitment. Has she told you about this... Oh well, whats Dads idea..." Well, I also think that Yaoyaos intention should be respected, but the prerequisite is that she must have thought about it herself and not regret it after making the decision... Thats it for now, no more chatting, I have a classmate who came to see me... ?Chang Haonan hung up the phone, closed his eyes and took a deep breath, then pulled out the IC card and opened the door of the phone booth. Wu Yifan was already waiting outside at this time. Nan Shen, you are really awesome. I originally thought that one week was an exaggeration, but it turned out to be less than four days "That''s right, don''t look at who we are..." Chang Haonan said, taking off his schoolbag and handing it to the other party: "The final design plan is in two floppy disks, and I wrote labels on them respectively." "Okay, but Nan Shen, the final payment may have to wait for a while. The contract states that it must be settled after they win the bid." Wu Yifan was a little worried that Chang Haonan was thinking too much about money: "But if you need money urgently, If so, I can give you some money first." ?Brothers have to settle accounts clearly. Although the two of them usually have a good relationship, they still need to be clear about matters involving money. No need, how can I still not trust you? Chang Haonan punched Wu Yifan on the shoulder and said with a smile. ?Wu Yifan in his previous life had made hundreds of millions of dollars, and he didn''t deny that these old classmates, who didn''t have much money in their pockets, could still be trusted in terms of their character. ?Besides, judging from the fact that he can easily buy a second-hand Jiujiuxin laptop, he won''t think much about these few thousand yuan. After handing the things to Wu Yifan, Chang Haonan took another look at his system. Since this fan has not had any impact yet, the number of research points remains unchanged. But [Engineering Experience] has become 60/1000, an increase of 40 points! (End of this chapter) Chapter 29 The regret of domestic passenger aircraft Chapter 29 The Regrets of Domestic Airliners You know, the J-7 improved design completed by Chang Haonan only provided 20 points of engineering experience. Although this fan used some aero-engine design ideas, it cannot be regarded as a big project after all, even if it is added with The experiment only took two days. ?The only possible explanation is obviousa study that has been experimentally implemented and finally implemented will gain more experience than a study that only performed computational simulations. It is quite reasonable. So if you want to accumulate experience quickly, you have to get in touch with actual projects as soon as possible. You have to join the group as soon as possible! ?Thinking of this, Chang Haonan turned back to the public phone booth and dialed the number of Du Yishan''s office. ?Early the next morning, in the Aircraft Department Building, in the student office of Du Yishans research group. Junior brother, this is your place from now on. ?Fang Zhen brought Chang Haonan to a desk by the window and patted him on the shoulder. It can be seen that this table has been specially taken care of. Although mottled marks can still be seen on the table legs and drawers, it can be seen that the green velvet cloth covering the tabletop and the transparent glass pressed on the top are all new. Up. Okay, thank you, senior brother. Chang Haonan said as he put some of his personal belongings, such as pen holders, cups, draft papers, etc. on the table. Junior brother, you can read the books or the materials on the bookshelf over there first. Just be careful not to get them dirty or broken. Ill go and get started first. After arranging Chang Haonan''s position, Fang Zhen returned to his position and started working hard. The former came to the bookshelf, ready to look for materials related to the wing flutter analysis. ?His luck was good, and he quickly found two file boxes labeled "Yun-7-200A Passenger Aircraft Wings" on the second floor of the bookshelf. ??Although Yao Mengna did not clearly state the object of their research that day, it seems that the only one that can be matched at this point in time is the passenger aircraft project later known as the MA-60. MA-60 is the first domestic passenger aircraft designed to fully adopt standards that are in line with the worlds advanced levels. It can basically be regarded as the starting point of Chinas modern passenger aircraft industry. ?But on the other hand, the first time means no experience, so this model actually left a lot of regrets in the original timeline. Overly conservative wing design is one of them. This time, he was prepared to make up for this regret personally. ?After spending half a minute confirming that there were no words such as "confidential" on the two file boxes, Chang Haonan returned to his desk holding the two boxes of information. Brother Fang, what step have you taken on the subject of flutter analysis of large aspect ratio wings? ?Fang Zhen raised his head and immediately saw the file box in Chang Haonan''s hand. "Following Yao Bo...oh no, following your previous ideas, we completed the finite element model of the wing on the MSC.NASTRAN software, and then calculated the first five natural modes and natural frequencies of the wing. Now Yao Bo and I am trying to perform flutter analysis using p-k method and v-g method respectively." It must be said that as students of Du Yishan, Fang Zhen and Yao Mengna do have something. It has been less than a month since they changed their new ideas, and they have to learn and do at the same time. Their progress is already quite good. Chang Haonan was secretly glad that he had asked this question in advance, otherwise he would have wasted a lot of time on repetitive work. What, junior brother is going to help us finish the rest of the work? Fang Zhen asked half-jokingly. Well... you should be almost done with the linear flutter analysis. Im going to try to see if I can get rid of the nonlinear part. ?Chang Haonan''s answer made Fang Zhen, who had just lowered his head, instantly look at him again. Linear analysis and nonlinear analysis are the same word, but the applicable theoretical foundations are vastly different. In some special cases, the elastic deformation amplitude of the aircraft wing will be very large. At this time, the relationship between strain and displacement is no longer linear. The linear theory based on the small deformation assumption that Chang Haonan and Yao Mengna said before is no longer applicable. , new theoretical tools are needed for guidance. There is no particularly reliable method in engineering. You must know that once flutter is induced, the best result is permanent damage to the aircraft structure. If you are not careful, the aircraft will be destroyed and people will be killed. There is almost no way to save it by pilot skills like stalling or spin. Therefore, a correction is generally added directly to the linear analysis results and a sufficient safety margin is left in the results. Of course, if you have unlimited money and time, you can build every type of wing and pile up test flight data to achieve miracles. But apparently even Americans cant bear this consumption... This is also one of the reasons why wing designs are generally conservative. Chang Haonan opened his mouth to do nonlinear flutter analysis. ?Although the previous linear analysis ideas were provided by him, using the dipole grid method is, after all, a summary of the existing theory. ??Nonlinear analysis relies heavily on the engineering experience of the analyst In short, Fang Zhen doesnt think Chang Haonan has really made any breakthrough in this area, but he will not dampen the opponents enthusiasm. Thats okay, you can try different correction methods. When the linear analysis results come out, we can compare them with the experimental results and make the correction factors more accurate. This time, Chang Haonan did not answer, but lowered his head and silently picked up the pen. As a reborn person, he knows very well that the current wild approach that relies on correction factors cannot be accurate. Furthermore, all flutter analyzes in this era are based on the overall calculation of the wing as a fixed structure. But in fact, there are aerodynamic control surfaces such as **** and ailerons on the wings of the aircraft. They also have an impact on the aeroelasticity of the wing. More importantly, later aircraft designers have proven that the distribution of aerodynamic loads in the aircraft flow field can be changed through the control torque generated by the deflection of the control surface, thus destroying the original self-oscillation coupling mechanism and making the entire closed-loop system regain its normal state. to stability. ?The principle is actually very simple: The motion signal of the aircraft is input to the control system through the sensor, and the control signal generated by the control system is input to the actuator to cause the deflection of the control surface. The control force generated by the deflection of the control surface is finally fed back to the aircraft, thereby suppressing the unstable vibration of the system. . So it is also called chatter active suppression. ?The biggest advantage of this idea is that there is no need to modify the wing design at all, just upgrade the flight control and sensors. According to the experience of later generations, it is not a problem to increase the critical speed of flutter by about 10%. What he has to do now is to reproduce everything in his memory! ? Time passed by, and after the regular breakfast time, a few more people walked into the office. Fang Zhen gave a brief introduction, but at this time Chang Haonan''s thoughts were already immersed in the materials spread out on the table. He simply said hello and continued to write and calculate on the draft paper. Because he discovered that the wing design provided in the information had far greater potential than he had previously imagined! What a great idea ?Compared with the wing actually installed on the MA-60, the wing in front of you is lighter, has a larger aspect ratio, and also has a winglet. This means lower flight resistance, faster flight speed and lower fuel consumption. For a passenger aircraft that is ready for commercial operations, this is the core competitiveness. Of course, as a price, the aerodynamic characteristics of such a wing are more complex, the design is more difficult and risky, and it is more prone to flutter. ? Perhaps it is for this reason that in the previous life, MA60 finally chose the original conservative plan. But now, such a regret will never happen again! (End of this chapter) Chapter 30 One day, solve the puzzle! Chapter 30: Solve the problem in one day! After almost a whole morning passed, Chang Haonan finally put down the pen in his hand. On the draft paper next to it, the mathematical theory and analysis process for nonlinear flutter analysis of the wing are densely listed, as well as the aerodynamic servoelastic modeling method that takes into account aerodynamic control force. ? ? Next, you only need to spend some time modifying the flutter analysis module of MSC.NASTRAN to start simulation calculations. ?At this time, the door of the laboratory was pushed open again, and a tall figure wearing a dress appeared at the door. I just brought you lunch when I came back from the computer room. Come here to get it! Its Yao Mengnas voice. Thank you Yao Bo! Long live Yao Bo! ?Everyone else in the office rushed to the door as fast as possible, leaving only Fang Zhen and Chang Haonan still there. Yao Bo, a new person came to our laboratory today. Didnt you bring him food? Fang Zhen said with a sly smile on his face. Newcomer? I dont know, who is it? ?Yao Mengna squeezed through the crowd with difficulty and placed a lunch box on Fang Zhen''s table. Im your senior. Fang Zhen ignored the lunch box on the table and pointed at Chang Haonan who just raised his head. Senior? Yao Mengna looked in the direction pointed by the chopsticks in Fang Zhens hand with a confused look on her face. Chang Haonan also looked at the two doctors on the other side of the office blankly - he had heard the term "senior" from Fang Zhen the night he first met him, but because he was busy doing experiments, he quickly understood it. Forgot about it. Howhowhow is it? Yao Mengnas cheeks turned pink almost at a speed visible to the naked eye. ?At this time, other people who had received their own portions of lunch boxes also returned to their seats, and soon noticed Yao Mengna''s strange expression. Why does Senior Sister Yao look at Junior Brother like this? Xia Tian picked up a piece of green pepper from the lunch box and stuffed it into his mouth, asking curiously. Chang Haonan curled his lips. ??Its just a junior brother, what the **** is a junior brother... "Maybe...maybe it''s because I met the senior I haven''t seen for a long time..." Fang Zhen was laughing so much that he almost fell on the table. Ah? Isnt this the junior who will be a senior in college next semester? Several other people in the office had gossipy eyes twinkling. ?The first person to react was Xia Tian. After all, she had dinner with Yao Mengna and Fang Zhen that day. Oh, hes the one ?Xia Tian covered her mouth with one hand and didn''t even notice that the potato slices she had just picked up fell off. ?That very effective simulation idea was actually told to Yao Mengna by this junior fellow who was only in his junior year! Junior sister Xia Tian, ??whats going on? Everyones eyes turned to Xia Tian. "summer!" ?Yao Mengna raised her eyebrows and clenched her fist fiercely into the air in front of her. Xia Tian, ??who was about to explain, shrank his head and immediately retreated. ?However, as the senior brother, Fang Zhen was "not afraid of power" after all and told the whole story. By the time he finished speaking, Yao Mengna had already leaned back on her desk to pretend to be an ostrich, not raising her head no matter how she screamed. The society is dead.?????In short, I regret it very much. Very regretful. It was just a casual comment at the time. Who would have thought that he would become a junior fellow student in the same laboratory... When she thought about having to be classmates with her for at least three years in the future, Yao Mengna felt that the whole world had become gloomy. "Don''t be like this, don''t be like this." Chang Haonan really didn''t expect that Yao Mengna would give herself such a title: "I shouldn''t be that old." After saying this, I couldnt hold back my laughter. I ate a lot for breakfast, and Im not hungry yet. Junior brother, just eat my share. ?Fang Zhen, who had finally laughed enough, stood up and placed the unopened lunch box on his table in front of Chang Haonan. ?This also allowed him to see the dozen or so pieces of draft paper scattered on Chang Haonan''s table. . Huh? Fang Zhens expression suddenly became serious: This is...Lagrangian-Green strain, and...Kirchhoff stress tensor...Are you trying to rewrite the dynamic equations of the wing structure under nonlinear conditions?" Senior brother is awesome, you can tell at a glance. Chang Haonan put down the pencil in his hand, and then gathered the spread out draft paper. Fang Zhen was a little smug when he heard this compliment, but then he immediately realized it - if he understood it, he was very powerful, so wouldn''t Chang Haonan himself, who derived the equation, be even more awesome? Who is this sentence praising? Ahemlets not talk about this for now, where are you going? Forget it. Chang Haonan arranged the draft paper and put it aside, and then opened the lunch box on the table, with the same expression on his face. The short answer and the flat tone seem to be talking about a trivial matter. ??But Fang Zhen knew what this junior brother was doing in the morning, so after hearing these three words, his whole body was immediately excited. Is it over? Fang Zhen reached out to the pieces of draft paper with almost trembling hands: Can I take a look? Just take a look. Chang Haonan was concentrating on cooking and replied without raising his head. ?About twenty minutes later, Fang Zhen was still standing there like a sculpture, but his expression had changed from the relaxed and carefree expression at the beginning to a frown. Not only does the mathematical knowledge involved in the later content become more profound, but more importantly... ?Chang Haonan must have entered the state, so when it came to the last few pages, the handwriting on it was really a little bit dramatic. Senior Brother Fang Zhen, what are you looking at so seriously? ?At this time, everyone had finished eating and was about to enter lunch break, but Fang Zhen standing behind Chang Haonan looked extremely eye-catching. Our junior has derived the generalized aeroelastic equation under nonlinear flutter conditions... Although there were two pages of content that he didnt quite understand, Fang Zhen still understood the final conclusion. Chang Haonan was eating his rice when he heard Fang Zhens words, but he still took the time to add: Not just that, but also the aeroservoelastic system state space equation that takes into account the wing control surface, so that the effect of the flaperons can be taken into account in the wing modeling. Those two sentences made the entire laboratory fall into a dead silence. ? Even Yao Mengna, who had been pretending to be an ostrich just now, raised her head, and even the flush on her face faded a lot. They certainly know what the generalized aeroelastic equation means. As long as this equation is solved and then processed very simply, the critical speed of the nonlinear flutter of the wing can be obtained. As for the equation Chang Haonan mentioned later, not many people care about it. Its not that everyone doesnt understand, but at this time, active flutter suppression is not yet an obvious science, so introducing movable control surfaces into wing modeling seems to be a thankless task. But actually, that was the focus of his work this morning! Thanks to the book friend [Lost Pigeon] for the 2000 starting coin reward (End of this chapter) Chapter 31 Brand new engineering model Chapter 31 A new engineering model At this time, Fang Zhen also returned the draft paper to Chang Haonan: Junior brother, can you tell me the content of the last few pages? I really cant see clearly what you wrote... ??He finally realized that he had underestimated the other party''s ability before, and he was actually planning to use some of his achievements to make a graduation project for others... Fang Zhen was extremely glad that he did not say this out loud at the time, otherwise he would probably be even more embarrassed than Yao Mengna now - if what was written on the paper was correct, then what Chang Haonan had achieved in the three hours just this morning, It is bigger than the three years of his Ph.D. combined. Everyone in the laboratory has gathered around. Hmm Im in a state of mind when I write this. Its really a bit confusing. Of course Chang Haonan didnt know what Fang Zhen was thinking, so he just took it and took a look: In this paragraph, I want to linearize the wing model at the static equilibrium position and calculate the linearized mode of the wing in the trim state..." Assuming that the static deformation of a large aspect ratio wing under given flight conditions and self-weight is u, and the wing vibrates slightly at the static equilibrium position, the displacement of each point on the wing can be expressed as..." "For a large aspect ratio wing model that takes geometric nonlinear factors into account, after extracting its nonlinear orthogonal modes, the motion equations of the structure can be converted to modal coordinates based on the modal superposition principle. The specific form is paper That equation with the number 33 on it. Then rewrite it into the Laplace domain and introduce artificial damping g. By selecting a series of appropriate modes, the generalized aeroelastic equation in the frequency domain can be established..." ?Although this is not a purely mathematical problem, it undoubtedly requires a deep mathematical foundation. Therefore, when Chang Haonan was halfway through his lecture, everyone except Fang Zhen and Yao Mengna had already withdrawn. Can''t understand! The two doctors who had listened to the whole story looked at each other and saw shock in each other''s eyes. They understood it and found no logical loopholes in the whole process. So the next step is to modify the program, analyze the wing flutter situation according to the theory on the draft paper, and calculate the flutter critical speed. ??If the calculated results and actual results can match... That means Chang Haonan has created a new engineering model. Although it cannot be called a complete theory, it is definitely an achievement that can leave its name in the history of the aviation industry. It only took one morning! Ill do the programming! ?Although he is a relatively conservative person in character, this does not mean that Fang Zhen does not have dreams. ??And if you can participate in the verification process of this model, his name Fang Zhen may also appear in some future textbooks or manuals. No doctor can resist such temptation. ?Hence, Fang Zhen seemed to be more anxious than Chang Haonan himself. Almost instantly, he rushed to sit down in front of the computer desk not far away and pressed the power button at the same time. There are three public computers in the student office, but because the building has not been renovated, they can only be connected to the LAN. If you want to connect to the public network and want to check information or download something, you have to go to the computer room. ?This is also why Chang Haonan met Yao Mengna in the computer room on the day he was reborn. You dont need to change the wing model, right? Fang Zhen said, clicking on a project file and showing Chang Haonan a look at the wing model and mesh division. "Of course it needs to be changed. Flaps and ailerons must be modeled separately, and the previous methods of calculating the first to fifth order natural vibration shapes have also changed. The static displacement of the wing structure under the action of its own weight must first be calculated and the displacement column vector output Ug, perform static aeroelastic analysis on the root-fixed wing model, output the static aerodynamic influence coefficient matrix Q, and then..." Repeat the above steps until the obtained static aerodynamic force no longer changes within the error range. At this time, the output structural node displacement array is the nonlinear static deformation of the wing model under its own weight and given flight conditions..." At first, Fang Zhen confidently listened to the calculation process described by Chang Haonan and prepared to program the calculations, but soon he showed a confused look, and finally fell back, leaning on the backrest slightly decadently. superior. ?Although I understand what Chang Haonan means, many of the theories required for the solution steps are not directly preset in the aeroelasticity module of the MSC.NASTRAN software. For example, the most critical step is to replace the default linear mode in the module with a linear mode.?????As he had just learned the DAMP language for a short time, he really did not have the confidence to modify this module. ?The opportunity to leave a name in the history of the aviation industry seems to have just passed away... Yao Bo, why dont you come and give it a try? ?Fang Zhen looked at Yao Mengna behind him "I" ?It seems that the other party''s situation is similar to mine. ?This made him feel a little relieved. As for Chang Haonan... Fang Zhen no longer regards the former as a normal person. Forget it, Ill do it. Chang Haonan placed the last piece of scratch paper next to the computer. On it were written the six steps of the analysis process. ?Fang Zhen, who was granted amnesty, quickly gave up his position and secretly swore in his heart that he would never be so impulsive again. Shame on you... ?Fang Zhen secretly glanced back at the other people in the office. Fortunately, everyone was taking a lunch break or doing their own work, so no one noticed what was going on here. Chang Haonan, who was sitting in front of the computer, had already begun the process of reconstructing the analysis module code. ?Although there is no efficiency blessing provided by the system, as a veteran in this field, his movements are still relatively smooth. Soon, Fang Zhen and Yao Mengna moved two small benches, holding notebooks on the left and right, and sat behind Chang Haonan and started taking notes. Yao Mengna was even a little touched in her heart - she had seen Chang Haonan''s exaggerated programming efficiency in the computer room before, so she almost subconsciously thought that the other party had deliberately slowed down this time so that she, with a weak foundation, could understand it. Although this junior may sometimes act like he needs a beating, he is actually quite enthusiastic. He seems to be the type that is cold on the outside but hot on the inside ?Yao Mengna was thinking this while staring at the lines of code that appeared one after another on the screen. ??Out of the corner of her eye, she could just see Chang Haonan''s side face illuminated by the CRT monitor. And from this angle...it seems to look pretty good. When Fang Zhens notes reached the fourth page, Chang Haonans program was finally modified. The next step is to modify the model and then import it for calculation. Belongs to a field where slow work produces fine work, and the technical content is not too high. Junior brother, Fang Bo and I will do the work of modifying the modeling. You go and take a rest. Yao Mengna noticed that Chang Haonan''s face looked a little tired, so she patted his shoulder lightly and said. "Okay, I''m going to take a nap. I''ve finished the program. After you build the model, you can import it and try to calculate it to see if the results can come out normally." Due to staying up all night like crazy some time ago, his biological clock is indeed a bit messed up now, and it will take some time to adjust it back. (End of this chapter) Chapter 32 The result is out Chapter 32 is out ?Chang Haonan was woken up by a burst of cheers. He opened his eyes with some struggle and stared at the rotating ceiling fan on the ceiling for a second. At this time a voice shouted: "The results are out!" ?After sitting up, he realized that not only Fang Zhen and Yao Mengna were standing in front of the computer, but even Du Yishan didn''t know when he came here. ?Unlike Yao Mengna and Fang Zhen who were staring closely at the calculation results, Du Yishan was holding the pages of manuscript paper in his hand and had read them over and over several times. Compared to the two doctoral students, Du Yishan''s theoretical foundation and experience are naturally better, so even though the writing above is a bit sloppy, he still fully understands the content. ??But at the age of seventy, he actually had a feeling of enlightenment because of these few pages of draft paper! Exquisite! ?Du Yishan flicked a few pieces of draft paper with his left hand, turned around and looked at Chang Haonan, who had woken up. Xiao Chang, your modeling idea is so exquisite! "Based on the transonic small perturbation theory, the nonlinear finite element is combined with the nonlinear beam model to calculate the impact of geometric nonlinear factors on the aerodynamic characteristics of large aspect ratio wings, and the aircraft is also considered during modeling. The factors of the aerodynamic control surface in the wing structure are not only flutter problems, but this idea can even be used to solve other design problems. " Twenty-two years have passed since the Dewey-Hodges equation in 1974. Finally, another big step has been taken in the field of nonlinear flutter analysis, and it was taken by us Chinese! ?Others in the laboratory looked at this scene in stunned silence. In almost everyones impression, Du Yishan always looks as stable as Mount Tai. ?But now, he was pacing back and forth in the laboratory with a few pieces of manuscript paper in his hands with excitement on his face. Teacher Du, lets take a look at the simulation results first. Finally, Chang Haonan reminded him, which brought Du Yishans attention back to the computer screen not far away. One of the most important results of flutter analysis is the "flutter critical speed". Under ideal circumstances, once the aircraft reaches this speed, it will induce wing flutter. Therefore, the higher the data, the better, indicating that the wing is less likely to flutter. Vibrate. However, the flutter critical speed is not calculated directly. Instead, the V-g diagram and V-f diagram must be drawn based on the calculation results before making a judgment. Fang Zhen and Yao Mengna have already started to do this. A few minutes later. Teacher Du, junior brother, weve figured it out. Fang Zhen put the pencil on the table and stood up with a piece of paper, but his expression looked a little solemn: When considering nonlinear geometric factors, the critical speed of flutter is 157m/s, which is 10m/s higher than the data speculated by the British expert, but..." When the number 157m/s was said, I dont know if it was Chang Haonans illusion. He always felt that the atmosphere in the laboratory suddenly solidified for a moment. British expert? ?Chang Haonan noticed that Fang Zhen just mentioned these four words. Speaking of which, although he has solved the entire problem, because he came here and started working since early in the morning, he is only focused on the technical issues related to the project and has no idea about the ins and outs of the project itself. In the last life, Chang Haonan missed the postgraduate entrance examination, so he spent the entire first semester of his senior year preparing for the postgraduate entrance examination. His graduation project was also done with an unknown young teacher, so he missed the opportunity to participate. ?These experiences related to flutter analysis were accumulated when he later participated in a certain long-endurance UAV project. Oh, junior brother, its only your first day in the group, so you probably dont know these things yet Finally, Fang Zhen gave a brief introduction to the project. Since this is the first time that China has designed an aircraft with complete reference to international standards, and directly used many subsystems from European and American companies, Institute 603 has invited many foreign experts in related fields as consultants, including an aeroelasticity expert. Analyzed by Englishman Hogent. When designing new passenger aircraft, the 603 Research Institute referred to the experience of the Y7-100 aircraft and designed the wing that Chang Haonan and the others are currently analyzing. However, during the feasibility evaluation process, this wing design with advanced concepts and excellent performance was rejected by Hogent, because based on his own experience, he calculated that the critical flutter speed of this wing is only 147m/s, which is 530km. /h. For an aircraft with a maximum cruising speed of 510km/h, this is almost equivalent to leaving no safety margin. A slight dive of the aircraft may induce flutter. Considering that China Aviation Industrys experience in this area is almost zero, the first model to connect with the international market must naturally focus on safety. Hence, the 01 aircraft currently undergoing airworthiness testing is still equipped with a set of relatively conservatively designed wings to ensure safety. But the designers of Institute 603 are not reconciled, because according to the current design, the Y7-200A has no advantage at all when facing propeller regional airliners of the same level as ATR42/72. With the same performance, why would others abandon mature aircraft to buy your new model? The only way is to go the cheap route. ?However, the low-cost route means low profit margins, and low profit margins will lead to a lack of funds for subsequent upgrades of the aircraft. In the end, it will be slow step by step, and it will be left behind by those foreign peers. So the 603 Institute still hopes to make some advantages in performance. ?At this time, with the last glimmer of hope, I found Du Yishans research team. So thats it. After hearing the whole story, Chang Haonan suddenly realized that in later generations, he really didnt know that such a story existed. "I heard from people at the 603 Institute that if this wing can be replaced, it can achieve a drag reduction effect of about 5%. Combined with the reduced weight, the overall fuel consumption can be reduced by almost 8%. For airlines, This is already a huge attraction. Fang Zhen looked at the calculation results in his hand and said with some regret. Although our calculation result is higher, it is equivalent to 565km/h, which is still not enough safety margin. China''s current national standard CCAR25 requires that at least 15% of the flutter critical speed be retained. Alas Yao Mengna rubbed her temples and sighed, but she still raised her head and comforted Chang Haonan: "Although this wing was ultimately proven not to meet the requirements, your method of analyzing nonlinear flutter should still be fine. When the time comes, we will find opportunities to verify it on other models, and we will definitely get good results. " "etc" Chang Haonan feels a little speechless about the current situation - his performance is obviously not over yet, why do these people all look like they have failed... Brothers and sisters, dont worry, there is still room for saving this wing. ?Yao Mengna and Fang Zhen looked at Chang Haonan for an instant. (End of this chapter) Chapter 33 This result cannot be made public! (2-in-1) Chapter 33 This result cannot be made public! (2-in-1) ?However, the surprise in Fang Zhen''s eyes only lasted for a moment. "Junior brother, if you want to redesign the wing, it will definitely affect the whole body. The overall structural characteristics of the aircraft will be changed, and it may also involve a higher level of materials and manufacturing technology, both in terms of cost and capability... " Fang Zhens concerns are actually justified. Because products dont grow on their own on the shelf. No matter how miraculous abilities Chang Haonan shows, things in the engineering field must eventually be implemented into production and manufacturing. But this field cannot be promoted by the flash of inspiration of one or two geniuses. ? Even if you have prepared raw materials, machinery and equipment, and a full set of technical documents, just cultivating workers who can adapt to new equipment and new technologies will not be achieved overnight. The wing design scheme in their hands has basically reached the current upper limit in this regard. ?But this time, before Chang Haonan could explain, Du Yishan spoke first. I think according to the calculations written by Xiao Chang, we should consider using active suppression methods without modifying the wing design? Although he has long passed the golden age of doing research, Du Yishan is experienced and well-informed after all, so he can see far more from those ten pieces of draft paper than two PhDs. Yes, Teacher Du is right. Chang Haonan nodded and continued: We can use model predictive control (MPC) theory to handle the constrained control system through rolling optimization and feedback correction to achieve active suppression of chatter. Thats why you need to consider the influence of the flaperons and do aerodynamic servo elastic modeling? Yao Mengnas eyes lit up. She was just thinking about why Chang Haonan did this. ?At first I thought it was just the other partys obsessive-compulsive disorder causing trouble, but I didnt expect that there was a greater purpose behind it. ?Thinking of this, Yao Mengna sighed softly in her heart. At the beginning, she still felt a little unwilling to admit defeat towards Chang Haonan. But now... Recognize the reality. Chang Haonan nodded: "Of course, but there is no need to re-simulate this time. Just apply an MPC control signal to the wingtip acceleration curve just calculated. I have already written the specific control rate into the program before." He has already said this. How can the two doctors not understand? Fang Zhen quickly came to the computer again and began to process the data. The next ten minutes felt like ten hours. After applying MPC control to the wing, the flutter critical speed increased to...175m/s. Fang Zhen''s voice was trembling. Thats no problem, 175m/s is equivalent to 630km/h, and the safety margin is almost a quarter. Chang Haonan''s mentality at this time was very stable: "So our passenger aircraft can completely use this new wing design!" ?However, this time it was Yao Mengna who was worried. After hesitating for a few seconds, she spoke in a voice that only four people could hear: "But teacher, Junior Brother Chang, this is a brand-new engineering model after all. Professor Huo Jint is a foreign expert hired with a lot of money by the Haojing 603 Institute. The results are so different at once. Do you think they can really dare to use it?" "?" ?Oddly enough, Yao Mengna was usually fearless when doing scientific research, but this time she was a little worried for the first time. "foreign expert?" At this time, Du Yishan also recovered from the initial excitement: Huh, what happened to the foreign expert? Does what he said as a British person must be right? As he spoke, he stretched out **** and knocked on the table next to him: "Since the 603 Institute has given this project to us, it means that they at least have this idea and the courage." Then our topic is... basically finished? Fang Zhen next to him couldn''t even believe what was happening. You know, just one day ago, he and Yao Mengna were still struggling with the idea of ????nonlinear simulation. One day later, this problem was easily solved by a new undergraduate student who joined the research team. By the way, the problem of the wing flutter critical speed being too low was also solved. You have to take your time to complete the project. At least the final report needs to be polished. Du Yishan looked at the paper with the calculation results written on it in front of Fang Zhen and said: I will go to Haojing in person tomorrow and explain the situation clearly to Comrade Zhou Yonghang and Comrade Yi Yuanhe. This is not just a problem of an air wing, nor is it just a passenger aircraft project. Zhou Yonghang is now the director of Haojing Institute 603, and Yi Yuanhe is the chief engineer. They must sign and agree to replace the wings and conduct flutter tests again, a risky test subject. Chang Haonan next to him remained silent, but he was already overjoyed in his heart. As an academician, Du Yishan no longer holds a front-line position, but his influence is still there after all. If he comes forward, there is a high probability that the 603 Institute will choose to believe this result and conduct a series of subsequent flight tests. Once the test shows that there is no problem with this method, Chang Haonan, its creator, will definitely be noticed and can at least participate in the MA-60 follow-up project. ?Compared to his initial plan to start with Professor Liu Hongbo and then gradually get in touch with the MA60 project, the progress has been made many times faster. "It''s just Xiao Chang." Du Yishan pulled a chair and sat next to Chang Haonan: "Your model involves our specific model design, and it has a wide range of applications. It will play a role in the entire aircraft design, especially in the field of passenger aircraft design. It has a huge effect, so... Im afraid it wont be suitable for public release in the short term. ?Chang Haonan was stunned. "what do you mean" Obviously, since Du Yishan just expressed his intention to go to Haojing in person, he must not be prepared to hold on to this result. Hence the only possibility is Let the 603 Institute conduct verification first. If it is confirmed to be feasible, it will become the internal design material of our national aviation system. Du Yishan took off his glasses, wiped them with his clothes and put them back on: Only this kind of internal material, very few people can see it. "It doesn''t matter, Mr. Du." Chang Haonan smiled and replied in a nonchalant tone: "I have told you before that I think the value of our China Airlines people is not reflected through papers." How could he be satisfied with gaining a little fame in the academic circle after reviving his life with the system? ?The top priority is to find ways to get access to higher-end projects as soon as possible, obtain more resources, and help China''s aviation industry, and even the overall industrial development, get on the fast track. The paper is just a means to him, not an end! The previous improved design of the J-7 was said to be a second-and-a-half-generation improved model, and it was just a course design assignment, so it was necessary to use the influence of the journal to let others see it. The meaning and importance of the engineering model he created today are completely different. It can completely rely on the ongoing MA-60 project and be promoted internally as advanced experience. This weight is much larger than a paper. You must know that this kind of engineering model that can be widely used, even in large companies such as Boeing, Lockheed Martin, and Rolls-Royce, is definitely a secret that will not be disclosed to the public casually. As for China Aviation Industry, which does not have such a strong financial background, it has to maintain these few unique skills. ?Hearing Chang Haonan''s decisive answer, Yao Mengna looked at him with a hint of understanding in her eyes. Fang Zhen next to him lowered his head, showing a thoughtful expression. As for Du Yishan, he just patted Chang Haonan on the shoulder and nodded slightly. ?Of course he could see that his student was not hypocritical when he spoke, and this was not the first time that the other party had made a similar statement. In 1993, Jinling University was the first to put forward the mandatory requirement to publish SCI papers for doctoral graduates, and other schools quickly followed suit. By 1996, a trend of thesis-based theory had gradually begun to form. Of course, from the perspective of ensuring the quality of graduate training, this cannot be said to be a bad thing. However, it is inevitable that engineering disciplines such as aircraft design, which are not so easy to produce papers, will be affected. In this context, it is even more rare for Chang Haonan to have such an awareness. After being satisfied, Du Yishan suddenly had a bold idea Perhaps we can allow such capable and determined students to participate in some projects in advance. It can also be regarded as injecting some rare fresh blood into the Chinese aviation industry. ?But before that, we still have to let the 603 Institute verify the correctness of Chang Haonans model. Otherwise it may not be convincing enough. ?Thinking of this, he took out a bunch of keys from his pocket and handed them to Xia Tian next to him: Xiaoxia, go to my office and get some floppy disks and copy the project files from the computer into them. Ill use them tomorrow. ?There is no small matter in the project. Even if he is already an academician, he still has to provide enough real evidence to reassure the 603 institute. ?Xia Tian moved quickly, and within a few minutes he came back with a floppy disk box, then sat in front of the computer and started copying data. ??Although the capacity of a floppy disk is only 1.44 or 2.88MB, its read and write speed is lower, usually more than ten to twenty KB/s, and it is also unstable. So it takes several minutes to fill up a disk. Taking advantage of this moment, Du Yishan walked to the side and looked at the calendar hanging on the wall: After I come back from Haojing, we will have a team meeting in the afternoon the day after tomorrow. Lets make some preparations in the past two days. Then he turned to Chang Haonan and said alone: "In addition, Xiao Chang, computer-aided design and simulation should be the future development direction of our field. In these aspects, my age''s ability to accept new things is not as good as your young people, so I want you to give everyone a system Talk about this knowledge." As soon as Du Yishan finished speaking, before Chang Haonan could react, Yao Mengna took over the words: "Teacher Du is right. I have always had this idea before. Junior Brother Chang has a very high level in computer simulation. Sometimes a few words of guidance can open up people''s minds. If he talks to us just once, everyone''s progress will definitely be improved." It will be bigger. ?Although after this days work, everyone in the laboratory already knows Chang Haonan, very powerful. But only Yao Mengna has actually consulted Chang Haonan and knows how powerful he is. Being able to know something yourself and being able to tell it are two different things. Being able to speak it out and being able to explain it clearly in a simple and profound way are two different things. ?In order to reach the third level, one must not only be superb, but at least be able to master it. The two times Chang Haonan told her, although his attitude and tone always made her grit her teeth with anger, the effect was indeed very good. ?In addition, Yao Mengna also wanted other people in the research team to experience the feeling of being overwhelmed by their IQ when receiving guidance from Chang Haonan. Share the blessings together and bear the hardships together. "Hmm... no problem." Chang Haonan rubbed his nose and replied: "The effect may not be very good if you just explain it. I can find a calculation example to demonstrate it on the spot." Teaching more people what he already knows or what he has taught systematically and exerting collective strength has been his strategy since his rebirth. Now that it was Du Yishan who took the initiative, it was naturally impossible for him to refuse. "In this case" Du Yishan lowered his head and thought for a moment, and quickly thought of a feasible solution: Its not good for so many people to be together in the computer room. Ill go find a laptop and everyone else will report normally first. Then take a break and then you can give a demonstration to everyone. At the same time that the content of the group meeting was finalized, Xia Tian finally completed the copying of the materials. ?So Du Yishan put away the floppy disk box and prepared to leave the office. But at this moment, Fang Zhen suddenly called him from behind: Teacher Du, we were going out to have a meal tonight to welcome the junior brothers who have just joined the group. Now it seems that the welcome banquet will turn into a celebration banquet. Do you want to come with us? Chang Haonan next to him was also stunned. No one had told him about this incident before. It should be a surprise prepared for him. Its just that today he brought a bigger surprise to everyone in the research team. "Forget it, I won''t join in the fun. Without me, an old man, you young people can''t even have fun..." ?Du Yishan didnt even look back. Halfway through his words, he suddenly realized something: Oh, do you mean you want me to reimburse you? Fang Zhen and Yao Mengna nodded together. Then keep the invoice until the group meeting is over. If everyone makes good progress this semester, I will reimburse you in full. In these aspects, Du Yishan is basically not stingy. Even when he was young a few years ago, he would organize autumn outings for the research team every year. "oh-" Thank you, Teacher Du! Long live Teacher Du! Goodbye, Teacher Du, we wont send you off! ?While everyone was making noises, Chang Haonan checked the changes in the system. For him, there is nothing new in today''s output, so the two ability values ??of theory and management have not changed, only the engineering experience has increased by 10 points. But for this era, he has created a completely new and quite influential engineering model today. So even though it has not yet been verified and implemented, the scientific research points have been directly increased by 20 points. So the current situation of the system becomes: Research Points: 26 Theoretical level: LV2 (0/10000) Engineering experience: LV1 (70/1000) Management ability: LV0 (5/100) Comprehensive ability: LV1 Projects in progress: 0 Projects that can be carried out: 1] (End of this chapter) Chapter 34 Key decisions [seeking reading] Chapter 34 Key Decision [Seeking further reading] Early the next morning, Du Yishan took the first flight of the day to Haojing, and then met Director Zhou Yonghang and Chief Engineer Yi Yuanhe at Institute 603. The former had already called two people last night and asked them to set aside a whole morning. After meeting, Du Yishan directly took out a floppy disk containing explanatory materials that he had compiled overnight. ? ? We are all engaged in technology, so there is no need to waste any words. Zhou Yonghang and Yi Yuanhe quickly realized the value of the contents of the floppy disk. Scientific research is nothing more than discovering and solving problems. But when we really want to do something, there are often a lot of things to do. It is quite difficult to find a place to start from the chaos. ? Zhou Yonghang and Yi Yuanhe are both experienced and experienced engineers, but after reading this idea of ????solving the problem, they still feel a sense of unreality. Generally speaking, the development of engineering models is relatively gradual. New methods that have just been born are always immature. When solving practical problems, they often need to be supplemented by old methods or experience. The set of things displayed on the screen in front of them were started from multiple directions at the same time, and finally converged on the key issue of wing flutter analysis. In this process, a series of secondary engineering problems including incremental finite element analysis, aero-servo-elastic modeling and model predictive control were simultaneously solved. It is as if this method has always existed, and has even developed and become mature after ten or twenty years, but they have never heard of it before. Its a bit like the feeling when I first came into contact with calculus. It has to be Academician Du. Zhou Yonghang leaned back on the large backrest of the seat and said in an admiring tone: If I hadnt known that this was a new method created by you, I might have thought Before he finished speaking, he was interrupted by Du Yishan: "I didn''t create this. At Du''s age, if he wants to come up with something new in terms of methodology, I''m afraid he won''t be able to do it." "That is" Yi Yuanhe next to him looked curious. He is one of my students. The waves behind the Yangtze River push the waves ahead. ?Du Yishan hesitated for a moment, but ultimately did not reveal the identity of Chang Haonan, an undergraduate student. He was afraid of scaring two old colleagues. It is not too late to wait until this method is verified. Lao Du, if this engineering model is verified, Im afraid ?Zhou Yonghang looked at the computer screen in front of him and hesitated for a moment, but finally continued: Im afraid it can be regarded as the most outstanding achievement of China Aviation Industry in the field of aircraft design methods. Coming from the mouth of the director of Institute 603, these words can naturally be regarded as extremely high praise. Thats why I came to you. ?Du Yishan didnt make any meanderings, put the tea cup in his hand on the table in front of him, and got straight to the point: Do you dare to verify this engineering model on the Yun 7-200A project? The two people sitting across from each other looked at each other. ?This question is difficult to answer. They did not find any problems in terms of derivation method and simulation calculation process. However, the two men and Du Yishan had different starting points for thinking about the problem. Especially Yi Yuanhe. This is determined by the different positions of several people. Since the 941 (Manned Spaceflight) Project, Chinas engineering projects have gradually established a main tone: The chief engineer makes the decision and the chief engineer is responsible. Any matters related to Yun 7-200A will be made by Chief Engineer Yi Yuanhe. Correspondingly, if something goes wrong after this engineering model created by Chang Haonan and recommended by Du Yishan is applied to aircraft design, it is not them who need to bear direct responsibility, but Yi Yuanhe.?????That is, the unity of rights and responsibilities. ??If you put Du Yishan in that position, he must have the same idea. ?Yi Yuanhe lit a cigarette, put the filter tip into his mouth and took a long puff. ??If this model only involves nonlinear flutter analysis, there is actually nothing to worry about. First blow a wind tunnel to verify the accuracy of the model, and then conduct a test flight if it passes the test. The risk will always be smaller. But this flutter is actively suppressed... It has only been more than ten years since the concept was first proposed in the West. It hasnt even really been used in aircraft design yet. ??Since it involves the action of the aerodynamic control surface, it is difficult to verify it through a blow tunnel. Because the scaled-down wind tunnel model simply does not have an aerodynamic steering surface, even if it is made, it cannot be controlled according to the control rate written by Chang Haonan. As for the full-size model The Y-7 aircraft has a wingspan of 29 meters, and after replacing the new wings, it is nearly 35 meters. It is really impossible to find a wind tunnel of this size. So it has to be tested directly after theoretical verification. This risk is huge. You must know that there is only one verification aircraft currently undergoing airworthiness testing. ?In addition to being responsible for the verification of this project, this single aircraft is actually a verification of CCAR25, Chinas new airworthiness regulations that are in line with international standards. ??If something goes wrong, it will be a small matter for him to be infamy for thousands of years, but it will be a big deal for him to delay the development of the entire Chinese civil aviation and aviation industry. Yi Yuanhe lit a second cigarette. Du Yishan, who also served as chief engineer, knew how much pressure there was in this situation, so he just stared at the flickering cigarette butts through the swirling smoke, and did not rush to speak to urge him. ??More importantly, as he said in the lab yesterday. Since the 603 Institute has reluctantly launched this project, it shows that there are expectations and pursuits for this new passenger aircraft. ??It would be fine if the results given by Du Yishan are as unfeasible as those of Hogent. But now this opportunity is right in front of them, and they cannot turn a blind eye. The silence between the three people lasted for almost half an hour. Until Yi Yuanhe finished smoking his sixth cigarette, which was also the last cigarette in the pack. "From my personal point of view, of course I hope to use more advanced designs, otherwise it will be difficult for new aircraft to open up the market. If we just buy a few of them to follow the lead of domestic airlines, it is not the result we want. ?Perhaps because he smoked too much in a short period of time, Yi Yuanhes voice was a little hoarse: But we still have to be scientific and not act recklessly. After finishing speaking, Yi Yuanhe put out the cigarette **** in the ashtray, stood up and walked to the window, looking at the track outside: We will proceed in two steps. First, we will improve the current No. 01 demonstration aircraft to verify the effect of active flutter suppression. After passing the test, we will replace it with a new wing and conduct a full-state test flight. As the chief engineer, it is impossible for him to make drastic improvements to an aircraft that is already in a test flight state just by patting his head without verification. Being able to make this decision was already under a lot of pressure and risk. After all, there is often only a thin layer of window paper between being bold and promising and being blind and reckless. Who can be sure that the score will be exactly right? (End of this chapter) Chapter 35 Guaranteed postgraduate quota [seeking further study] Chapter 35: Guaranteed postgraduate quota [seeking further reading] ?Two flowers bloom, one on each side. ?At Beijing Hang University, Chang Haonan did not go to the office that day. On the one hand, after he solved the biggest problem of the entire research group yesterday, everyone was very happy to eat, drink and play in the evening. In addition, with the large number of people, they were not too worried about safety issues, so they stayed until midnight, and there were two He drank too much and became a bit drunk. ?So Fang Zhen simply announced that he would have a day off the next day. On the other hand, Class 93 of the Aircraft Department is organizing a once-a-semester final grade meeting this afternoon. According to the school''s official plan, it is still within the examination week and has not yet come to vacation. But because the Department of Aircraft Science has fewer classes and fewer exams this semester, the results of even the junior year students have been released, but they havent had time to print out their transcripts yet. And this is the last summer vacation before graduation. After entering the workforce, most people do not have such leisurely and happy time as two long vacations a year. In addition, for schools in the north, the summer vacation is inherently short, usually only about a month. Therefore, junior students generally want to leave school as soon as their transcripts are issued. Whether you go home or contact your workplace, your mind is no longer on campus. So the school has been relatively open-minded and acquiesced to each department''s scheduled vacation time being moved forward. Two o''clock in the afternoon. In a large classroom in the No. 1 teaching building, students participating in the grade assembly came in one after another and signed in at the door of the counselor in charge of their class. Chang Haonan came a little late this time. When he entered the classroom, the seats in the back rows were already full. Haonan, when I was in the office before, I heard that you got full marks for aircraft design. Its amazing. While Chang Haonan was signing in, counselor Liu Chenchen whispered to him. ?Although the university has class teachers, they are all part-time professors of the school, and their presence is basically zero. Chang Haonan only vaguely remembered that at the beginning of his freshman year, the class teacher took the whole class out for a hot pot buffet, and then he never showed up again. Hence, all work related to class management will basically fall on the heads of counselors. But in this case, a well-established counselor like Yan Lu would definitely be too busy, and the school would not be able to hire temporary workers to supervise students. Hence the term administrative postgraduate research. That is, after graduating from a bachelor''s degree, you will stay in school as a counselor for two years, and then study for a master''s degree for three years. Of course, although this way of postgraduate guarantee has slightly lower academic performance requirements, it has very high requirements in other aspects such as student work and social practice. In short, it is not easy. Liu Chenchen, who is in charge of classes 9301 and 9302 of the Aircraft Department, is such a 2+3 counselor. Since she is actually a student herself, she has a good relationship with the classmates she is responsible for. Is that so? It seems that I have good luck this semester. After obtaining Du Yishan''s guarantee, the results are actually not very important to Chang Haonan. ??But such a flattering answer turns out to be a very high-end pretense in the eyes of others. "Perfect scores cannot be explained by good luck." Liu Chenchen sighed, his petite body lying on the table: "I really envy you academic masters. If my grades could be better, I wouldn''t have to waste these two days. years. Liu Chenchen''s stature is similar to Zhang Man''s, both only over 1.5 meters tall. But unlike the latter who is good at talking, Liu Chenchen can show a strong aura when needed. It''s probably like having a 1.5 meter loli figure with a 1.7 meter face. "Actually, it''s not bad." Chang Haonan was also a little unsure whether to comfort him at this time or not: "Sister Chenchen, if you are professional, having such two years of experience may be better than directly studying for graduate school." ?This kind of 2+3 counselor positions are randomly assigned and will not necessarily be sent back to the college. ?For example, Liu Chenchens undergraduate and masters majors were both in industrial foreign trade and belonged to the School of Management. However, in the 1990 version of the professional catalog implemented at this time, management was not yet an independent subject category, so students at Beijing Hang School of Management were all awarded engineering degrees. Alas...how is it possible? We are studying industrial trade, but the employer doesnt care about this. While the two were chatting, several other students who arrived later also completed signing in, including Zhou Shuwan and Zhang Man. Just when Chang Haonan and others were about to find a seat as far away from the front as possible, Liu Chenchen folded the filled sign-in form and put it in his bag and stood up: Lets go, Sister Lu just asked me to take you guys to the front and sit down. About ten minutes later, Yan Lu, who was in charge of the entire aviation department student affairs, led another woman in her fifties to the podium. The grade assembly has officially begun. "Students, this should be the last time I hold a grade assembly for you Class of 93. Considering that many students will start looking for jobs next semester, today I have specially brought some information about corporate recruitment, as well as information about our majors. Relevant industry trends Yan Lus professional ability is really not to be said. After she temporarily added such a content to the grade assembly that was originally just a formality, almost all the students immediately cheered up and became serious. ?Although there is no systematic talk about autumn recruitment and spring recruitment at this time, some large companies, especially foreign companies, will indeed start recruiting graduates for the next year from September to November. Hence this part is also the top priority today. ?Yan Lu kept talking for almost an hour and a half, and her voice was already hoarse before she finally stopped. Teacher Zhou Hong will talk about some issues about learning. After saying this, Yan Lu finally breathed a sigh of relief and gave up the podium to another teacher who had just followed her. Chang Haonan then remembered that Zhou Hong seemed to be the teacher in charge of the teaching department of their college. Students, I think you are all tired, so I will keep the story short. ?Zhou Hong spread out the pieces of paper in front of her and said: This semester, there is only one professional course, and there are very few students who are failing the course, and there is also a student who got full marks in this aircraft design course One sentence made almost everyone look at Chang Haonan who was sitting in front. ?Of course, everyone here has seen Chang Haonans course presentation, and actually had psychological expectations for this matter, so they were not particularly surprised. However, some students started to discuss quietly. Well, in retrospect, the seaplane designed by the previous group is also very good... Yes, it would have been a perfect score in previous years I can only say that there is no harm if there is no comparison. I am indeed a little unlucky... To be honest, these students should feel sorry for Huang Zhiqiang. But to the latter, who was already mentally shattered, this sentence turned into a mockery of him. So much so that he didnt even hear a lot of what Zhou Hong said later. Finally, according to the practice of our college, students who rank in the top five in their majors with average grades will be able to enter the examination-free postgraduate interview stage, and 3 of them will eventually be recruited. One sentence made the audience instantly quiet. ??Although the matter of admission to graduate school has nothing to do with most people, everyone will be curious about who entered the final interview round. ??Huang Zhiqiang, who was still gritting his teeth just now, now had a smile on his face again. In his opinion, although Chang Haonan stole some of the limelight in his course on aircraft design, the gap in performance should not be huge. Relying on the advantages accumulated in the past, he should still be able to rank first in the major. "So this year the five people from our aircraft department who have entered the postgraduate interview stage are: Chang Haonan, Zhou Shuwan, Li Yiqing, Tao Ran, and Zhang Man. Please stay with the five after the class meeting. There are a few forms that you need to fill out. " Applause broke out in the large classroom as usual. ?Only Huang Zhiqiang''s body swayed slightly and stayed in place, as if there was silence in his ears. (End of this chapter) Chapter 36 Trapped in a cocoon Chapter 36: Trapped in a cocoon In fact, only a few people will really pay attention to the performance rankings of this major. For most people, it is enough to know who is a good student and who is a bad student. If there is a question that they cannot understand or a lab report that they cannot write, it is enough to know who to borrow the answer from. ?Hence, not many people thought it was particularly strange that Huang Zhiqiang was not included in the list of those exempted from the exam. After Zhou Hong read out the list of five people, he was ready to disband and go back to the dormitory. Liu Ran glanced at the livid Huang Zhiqiang from a distance. After a moment of hesitation, he followed several other roommates and left the classroom. The other two people in the same group as Huang Zhiqiang quickly came over. Brother Qiang, is there something wrong with this list? Hearing these words, Huang Zhiqiang finally recovered from the previous state. At this time, he clenched his fists and his whole body was trembling. No, I must ask about this matter! Looking at the five people sitting at the front who were filling out the postgraduate application form under the guidance of Zhou Hong, Huang Zhiqiang almost burst into flames and quickly stood up and came to the side of the podium. Teacher Zhou, can I see the transcript? ? Huang Zhiqiang suppressed his anger and asked Zhou Hong in front of him. Transcript...Which class are you in? Aircraft Department 9302. Zhou Hong does have a transcript of all majors divided by class. It is said that the grades of each course are students'' privacy and cannot be shown to others casually. However, in this era, these things are not taken seriously, so after hesitation, he still found it. The transcript of class 9302 was handed over. ?The anxious Huang Zhiqiang almost grabbed it. Fortunately, Zhou Hong''s attention was all focused on the five people filling out the form, and he didn''t care about Huang Zhiqiang''s reaction at all. Fiftyfifty-nine points? The moment Huang Zhiqiang saw his results, his mind went blank. ? He ??had thought before that he might not get a full score, but the worst-case scenario was around 95 points. As for 59 points Its impossible to think about it. ?Since entering college, Huang Zhiqiang has been able to get scores of around 85 in even the ideological and political courses he hates most, and all professional courses start with at least 90 points. Obviously, the reason why he did not enter the postgraduate interview was obvious. Excluding physical education and general education courses that are not included in the grade, the total credits earned in the first three years of the aviation department were only in his early 70s. A course worth 10 credits only scored 59 points, which directly lowered his average grade by 5 points. So many points. You must know that the gap between the dozen or so people at the top is not very big. Even though he was ranked first in the professional rankings before, he was directly dragged out of the top five. ?Thinking of this, Huang Zhiqiang quickly checked the results of the four members of Chang Haonan''s group. Sure enough. ??In addition to Chang Haonan himself who scored 100 points, Zhang Man and Zhou Shuwan scored 95 points and 90 points respectively, and Wu Yifan also scored 85 points. ?Such a high score made Zhang Man, who was originally outside the top ten, directly become the fifth in the major, and Chang Haonan, who was already doing well, directly counterattacked and became the new first in the major. Looking at the Arabic numerals on the transcript, Huang Zhiqiangs eyes almost burst open, and his eyes were filled with blood. "Ah" ? Huang Zhiqiang, who was extremely angry, laughed dryly, and then raised his head, ready to see how the "culprit" Chang Haonan would react now. Scorn? Sneer? Hypocritical concern? The moment before he looked up, Huang Zhiqiang thought of many possibilities. However...??Chang Haonan still had such a calm expression, filling in the last form in front of him leisurely. During the whole process, she didnt even raise her head to look at him. ??The biggest ridicule in the world is that you regard others as your biggest opponents, thinking that the other party has all their tricks and you are one step behind. As a result, they actually don''t even bother to look at you. ?? Huang Zhiqiang looked at the scene in front of him and suddenly felt his eyes go dark. Fortunately, he was standing next to the table, so he almost relied on instinct to find a place to sit down without falling directly to the ground. Actually, Chang Haonan cannot be blamed for this. Since returning from rebirth, he has never regarded Huang Zhiqiang or anyone in the same grade as his opponent. ?His goal from the beginning was to find ways to get in touch with actual projects as soon as possible. Not to mention the help of the system, even if there was no help from the system, the knowledge and more than 20 years of memory brought back by Chang Haonan were enough to attract Liu Hongbo''s attention in this aircraft design course. Its just that the effect is not as exaggerated as it is now. In fact, Chang Haonan was noticed by Du Yishan thanks to Huang Zhiqiang''s wave of reports. In other words, in the past month, Huang Zhiqiang has been tossing and turning, but he is actually fighting against the air. ?Chang Haonan didn''t take the move at all. ??Even now he doesn''t know that Huang Zhiqiang made so many little moves against him later. Because its really... not affected at all. So the situation can be summed up as follows... You fell down before I could exert any force.jpg Please, you are weak.png Of course, if Huang Zhiqiang knew this, he would be so angry that he would vomit blood. ?After all, this feeling is similar to that on the night of the wedding, when the husband is exhausted from all the hard work, but the wife thinks it hasnt even started yet... In short, it is a great shame and humiliation. ?But at this time, Huang Zhiqiang, who had just recovered from the black eyes, could not think about this. There was only one thing in his mind. Go find Liu Hongbo and discuss it! However, when he rushed all the way to Liu Hongbo''s office and asked him almost in a questioning tone why he only scored 59 points for his course design, the latter did not answer. He just put down the pencil in his hand and used a Looking at him with a strange look. How could Huang Zhiqiang have the time to think about the meaning of this look in his heart? Besides, he had already preconceived the idea that Liu Hongbo could not understand his design at all, so how could he think elsewhere at this time. ?So this silence was naturally interpreted by him as a guilty conscience. "Teacher Liu, I need an explanation. The performance of our group in that demonstration class was seen by all the students in the 93rd grade aircraft department. How about we go to the classmates to comment and see if our design should only be 59 points! ? Huang Zhiqiang, who thought he had the upper hand, said even more aggressively. Seeing the other party behave like this, Liu Hongbo sighed deeply in his heart, and at the same time he was a little lucky. ??If Du Yishan hadn''t seen the clues about the course design that day, he would most likely have recruited such a psychologically distorted student into the research group. ? Even if this person does have certain abilities, there will be endless troubles. I dont care if I go to my classmates to comment. Liu Hongbo stood up, walked to the cabinet next to him, dug out Huang Zhiqiang''s course plan, put it on his desk, and then pulled out a book with a green cover from the bookshelf next to him. But you have to think carefully, if this matter comes out, it may not be as simple as just 59 points in a course. After saying this, he opened the book and flipped it to the end, putting it together with the course design instructions he had just found. The moment he read the contents of the book, Huang Zhiqiangs face instantly changed from red to pale. (End of this chapter) Chapter 37 J-7E Chief Designer’s Shock [Seeking further reading] Chapter 37 J-7E Chief Designers Shock [Seeking further reading] Later that day, inside the 611 Research Institute in Chengdu. 59-year-old aircraft designer Lu Yuying had just returned to his office after dinner. As the chief designer of the J-7E aircraft, he can now be considered successful. ?This deeply improved version of the J-7 has been well received by the troops and may soon be exported to other countries in exchange for valuable foreign exchange. Lu Yuying himself is quite satisfied with this model. But satisfaction does not mean satisfaction. With the completion of the finalization of the J-7E, he has already begun to think about how to improve the J-7 in the next step. As a member of Institute 611, he certainly knows that Project No. 10 is currently progressing smoothly. But whether it is from the perspective of project risk prevention or simply from the perspective of export, the J-7 still has the potential to continue to improve. ?However, Lu Yuying encountered difficulties when it came to improving his ideas. There is no doubt that it is already the second half of the 1990s, and there is no way out for continuing to develop day fighters. ??However, the all-weather model J-7C/D that was developed simultaneously with the J-7E was not successful, and the evaluation of the troops was even worse than the former. ??So relying on enlarging the body and sacrificing maneuverability in exchange for extremely limited over-the-horizon detection capabilities... No way! ?Hence, Lu Yuying quickly began to consider new design ideas. The space in the nose of the aircraft is freed up to install the radar, and the air intake is placed elsewhere. ??But after trying several solutions, either the performance failed to meet the standard or the changes were too large. In short, he was not satisfied. ??In recent months, Lu Yuying has been studying a way to intake air into the lower jaw, but the design of this seemingly simple structure is quite difficult. The radome on the nose part will interfere with the oncoming flow and affect the normal operation of the air intake. ?Most design drafts dont even make it to completion. The only relatively successful one, after blowing through several wind tunnels, it was found that the intake distortion at certain speeds and angles of attack can even exceed 0.3, which will undoubtedly make the WP13F engine''s already less than adequate performance To add insult to injury. Now I come back to work overtime after dinner, just for this matter. Just when Lu Yuying took out the key and was about to open the door, he noticed an envelope stuffed in the mailbox on the wall at the door. ?Taking it out, I saw several large characters printed on the kraft paper: The editorial team of "Journal of Aeronautics and Astronautics". As one of the reviewers of this magazine, he naturally has some review tasks to complete every year. ?Lu Yuying is not averse to reviewing manuscripts and never procrastinates. Whenever she receives a manuscript, she will try to read it as soon as possible. He is not going to make an exception this time. Its just a pity that I wont be able to advance the work at hand this whole night. "well" ?Lu Yuying sighed and walked into the office with the envelope. After pouring himself a glass of water, he returned to his desk. Light the desk lamp and slowly open the envelope. Research on the integrated layout of dual-module mandibular inward-turning air inlet/conical front body The moment he saw the title, he was even stunned for a momenthe thought he was looking at a report submitted by his own designers. "interesting" ?Lu Yuying immediately cheered up. After all, this is exactly what I am currently studying. He subconsciously turned to the last page to confirm and found that the author was from Beijing Hang University. The first author and corresponding author are the same person, Chang Haonan An unknown name, Lu Yuying shook his head. ??He has at least heard of several relatively high-level professors at Beijing Airlines. It seems that this is most likely an ordinary or even a bit watery paper. After all, one of the organizers of Journal of Aeronautics and Astronautics is Beijing Airlines. If people from your own school submit articles, the editorial department will take care of them to some extent. However, the reviewer''s duty still made him put aside his inner contempt and continue reading seriously. What if it can bring some inspiration... However, when he read the summary on the first page, he realized that he had been preconceived. This design not only provides a good displacement effect of the precursor boundary layer for the internally turned inlet, but also effectively avoids the interaction between the precursor boundary layer and the internal flow field of the inlet in the traditional mandibular inlet layout. interference." ?This sentence almost directly touched Lu Yuyings heart. He has been tortured by the interference between the precursor boundary layer and the internal flow field of the inlet for half a year. The author of this article claims that he has solved the problem. When M=0.8, the total pressure recovery coefficient is not less than...0.942. ??When Lu Yuying saw the last value in the summary, the right hand holding the pen trembled violently. A drop of ink was thrown on the glass of the table, but he didn''t notice it at all. Compared with his previous designs, it is more than 10% higher. ??What Lu Yuying didn''t know was that this result that he couldn''t believe was even after being specially "handled" by Chang Haonan and Du Yishan. But this number is enough for him to look forward to the following content. He turned the paper to the second page. After a ridiculously short introduction, the author started to introduce the design ideas and methods directly without any nonsense. ?Ten minutes have passed twenty minutes One hour ??When Lu Yuying read the last page of the paper and raised his head again, the hour and minute hands of the clock on the wall had overlapped. He actually read the paper for almost six hours without knowing it! The notebook on the right hand side is already filled with densely written content, some of which are things that I dont quite understand yet, some of which require calculation or wind tunnel verification, and some of which are simply sighs. for example: It not only ensures the capture of the high-energy mainstream, but also discharges the low-energy flow near the wall out of the inlet, wonderful! and so on. ?This paper is ten pages long, but the sentences are concise, concise and concise, and there is no trace of word count. Its all dry stuff. And the idea of ??finding and solving problems is very clear. ??? Rao is a 59-year-old comrade of his, and he has to sigh at the rigor! It seems that although the author is unknown, he seems to have some engineering experience. ?Lu Yuying thought so. When the paper is officially published in a journal, the author''s photo and introduction will be attached at the end. However, this is the job of the editorial department, and the reviewers cannot see it during review. So Lu Yuying didnt know who this Chang Haonan was. I can only make a rough guess, maybe it is a young talent that Jinghang recently poached from a foreign university. These days, a lot of Chinese people are traveling abroad, and few choose to come back after going out. ?So if this is the case, it is quite a rare thing. ??Moreover, after reading the entire text, Lu Yuying has realized that the content of the paper should have undergone a similar declassification process, with some data and processes hidden. ?So after going to work tomorrow, he plans to call Beijing Airlines to see if he can communicate with the author himself. Only after obtaining complete information from the other party can the next step of wind tunnel testing be started. Because paper reviewers are only responsible for examining the research process and ideas, and are not responsible for the authenticity of the data itself. But as an aircraft designer, he has to ensure that the data he obtains is complete and true. Of course, judging from the rigor of the process discussed in this paper, Lu Yuying is relatively optimistic about the results. (End of this chapter) Chapter 38 end of school year Chapter 38 The end of the school year That evening, Chang Haonan and the other three people who had passed the postgraduate interview followed the "customary" and invited their classmates with whom they had good relationships to have a meal. ??It''s still BJ Roast Duck, but the quality of the restaurant is much higher. Jin Jude. ??This century-old brand has not lost its reputation in this era, and it does still have real skills. The price is really outrageous. At first glance, I thought it was back to 2023. ?However, neither Zhou Shuwan nor Zhang Man are short of money. As for Chang Haonan, he only got the 800 yuan deposit a few days ago, and he is quite wealthy. In fact, it stands to reason that all dormitories are for eight people, so three people should have 21 roommates alone. ??But on Chang Haonan''s side, Wu Yifan took leave in the afternoon and did not come to the meeting, so he could not be contacted. Liu Ran said he was ill and did not come. Huang Zhiqiang has been missing since the grade meeting. As for Zhang Man, her personality is really not popular among girls. In addition, there are only a few girls in the aviation department, and there are several non-majors in her dormitory, so she doesnt even have a roommate. Only 6 people came from Zhou Shuwan''s side. The only one who didn''t come was because he bought a ticket for the evening and had disappeared. Considering that Zhang Man was the only girl in the whole situation, it was not good, so everyone gathered together and simply called Liu Chenchen, who was about to end his term as a counselor and go back to graduate school. Although Liu Chenchen has a strong aura, he usually has no airs. Now that I am about to return to my status as a student, there is no burden, and I will soon get along with the others. Since the reason for the treat was Baoyan, the topic quickly and naturally turned into a discussion about the future. I heard from Sister Lu before that Nanshen has been recruited by Academician Du Yishan. What about you two? Do you have any ideas? In just a few words, Liu Chenchen''s name for Chang Haonan had also changed. Well... I still have some self-awareness. Even though I got the interview, I will definitely not be able to get a job in the end, so Im not going to bother with this. Im going to go directly to the teacher to get a recommendation letter and go abroad at my own expense. ??Although there is an interview in the process of postgraduate entrance examination, if there are no special circumstances, it is based on the ranking of the written examination, so what Zhang Man said is not a problem. But Zhou Shuwan next to him was shocked after hearing this. Manman, you... Obviously, before hearing this sentence, this guy thought Zhang Man really had thoughts about him. Now that the results of professional courses in junior year have been settled, there is no need for the latter to continue pretending. In fact, if we really talk about it, although Zhang Manren is a little green tea and a little scheming, in fact, in the past three years, he has not done anything harmful to Zhou Shuwan, the spare tire. After all, Zhang Man is a rich young woman, and she cannot be considered a scumbag. It is nothing more than asking the latter to give lectures, borrow notes, copy experimental reports, and help with major homework in several professional courses. Perhaps the most egregious thing was that before handing in the assignment in the aircraft design course, she called out "Brother Wan" several times to get Zhou Shuwan to agree to write her name second after Chang Haonan. Its just that Zhou Shuwan, who has devoted all his feelings to Zhang Man, is really hard to accept. What about you, Wanshen? Liang Hao next to him poured a glass of beer for Zhou Shuwan and patted the latters shoulder. In fact, almost everyone who knows Zhou Shuwan knows what Zhou Shuwan means to Zhang Man, but this kind of thing... There is no way to persuade. We are going to go to graduate school with Professor Liang Wenchang. He is an expert in aircraft life-saving systems. I am more interested in this field. He made the same choice as Chang Haonan did in the life before his rebirth. After Zhou Shuwan finished speaking, he raised his neck and drank the beer in the cup in one gulp. By the way, Sister Chenchen, arent you going to graduate school next semester? What is your research direction? Chang Haonan noticed something was wrong in the atmosphere and quietly changed the subject. "Is this a major in industrial foreign trade... You also know that in fact, many things are false, and research can''t produce anything." Liu Chenchen didn''t drink, so he took a glass of grape juice: "We 2+3 graduated from the undergraduate program I decided on a mentor at that time, and I found Teacher Yang Huimei. She is more experienced in this field, and with her I will have the opportunity to directly participate in foreign trade activities, and maybe travel abroad at public expense. " Jinghang''s industrial foreign trade major mainly refers to the equipment manufacturing industry. In today''s era, it is industrial foreign trade at best, but it is actually industrial procurement at worst - basically only buying things from foreign countries. As for the others, only one has the idea of ??preparing for the postgraduate entrance examination, but it is obviously too early to consider the issue of tutors now. Reviewing mathematics and English is the right way. In short, after a lot of discussion, the last normal semester of undergraduate studies has come to an end.??? Early the next morning, Chang Haonan came to the laboratory on time. After he overfulfilled the task of wing flutter analysis, his days became leisurely. ?Although there is still an unfinished report, this work has been handed over to the experienced Fang Zhenlai, who did not even ask Chang Haonan and Yao Mengna to help. Of course, Du Yishans research group has other projects, but most of them are closer to the kind of private work that Chang Haonan took on before, and they are not even directly related to aviation, such as performing two-phase dynamics analysis on fluidized beds. ?There is no way, these days even the research groups of academicians have to rely on these "irrelevant" projects to earn funds. As for the group meeting in the afternoon, there was actually nothing to prepare for. His plan was to talk about some basic theories first, and then directly use the MiG-21 model to conduct a live demonstration and talk while doing it. So Chang Haonan turned on the computer and prepared to continue studying the impact of swept blades in turbine machinery on the separation structure in the expansion cascade. While improving the fan before, Chang Haonan had already remembered that the influence of swept blades on gas flow performance could be applied to the design of compressor fan blades of aeroengines. ? Its just that Chang Haonan, who didnt have much contact with aerospace research in his previous life, didnt know much about its mechanism and rules, so he still had to do some preliminary exploration in this area. Otherwise, it is impossible to come up with a reasonable and closed-loop project idea, and even if you want to use the system, you will be unable to do so. However, just when he was about to start finalizing the numerical simulation plan, the phone in his office rang. The person who answered the phone was Xia Tian. Hello, hello Rongcheng 611? Yes, this is Beijing University of Aeronautics and Astronautics, but we... Xia Tian originally wanted to say that our teacher hasnt arrived at the office yet, but the other party directly said that the person he was looking for was Chang Haonan. Junior Brother Chang, Im looking for you on the phone. It was just someone, and Xia Tian had no intention of covering the receiver, so Lu Yuying on the other side clearly heard the address to Chang Haonan. ?This made him confused for a moment. Did Beijing Airlines recruit two people from the same research group abroad at once? Before Lu Yuying could think about this issue clearly, Chang Haonan had already answered the phone: Hello, hello, Im Chang Haonan. At this point, Lu Yuying had no choice but to announce her home address and the purpose of her visit. When he expressed that he wanted to learn more about the integrated design method mentioned in the paper, Chang Haonan, who was opposite him, agreed without hesitation. ?This actually surprised Lu Yuying. After all, in his opinion, since you have dealt with it when writing the paper, you must want to hide something. So much so that he was mentally prepared for difficult negotiations or even direct rejection. In fact, Lu Yuyings idea is not wrong, but Chang Haonan is prepared to be cautious about foreigners who may read this article. It doesnt matter if youre one of your own. ??But no matter what, it is very inconvenient to talk about such complicated things on the phone, and inter-provincial calls in this era are not cheap at all. ?So the two directly made an appointment to meet and communicate. ?Of course, the meeting place must still be Beijing Airlines. (End of this chapter) Chapter 39 I, a junior, give lectures to the whole college! Chapter 39 I, a junior, give lectures to the whole college! That afternoon, we were in a small conference room on the top floor of the aircraft building. A total of more than a dozen teachers and students from Academician Du Yishans research group were sitting around the oval conference table, watching Yao Mengna drawing pictures on the blackboard while talking about her research content this semester. ?No matter whether you have a masters degree or a doctorate, one thing that every graduate student cannot escape is Group meeting. Since scientific research takes a long time and there is no regular standardized evaluation like exams, the instructor needs to keep track of the progress of his graduate students through regular reports. Of course, this also means giving some pressure, asking graduate students to come up with something every once in a while, and not to overdo it, otherwise it will be difficult to end up not being able to graduate. But in the final analysis, group meetings are still informal communications within the research group, and the frequency and form depend on the instructor. ? Du Yishans research group, or Du Yishan himself, does not like to hold group meetings. He usually prefers to let each student report individually. In addition, the postgraduate students in the group generally have a more proactive attitude towards scientific research, so the frequency of group meetings is basically only once at the end of each semester. According to past custom, after this group meeting, graduate students who have no important projects during the summer vacation can go home for the holidays. So the atmosphere in the conference room is generally relatively relaxed and cheerful now. The above is the main work I have done this semester. I would also like to thank Dr. Fang Zhen and Junior Brother Chang Haonan who helped me during the research process As Yao Mengnas report was completed, a burst of warm applause erupted in the conference room. Generally speaking, undergraduate students and first-year master''s students who are completing their projects are not required to speak in group meetings. So normally, the group meeting would basically end here. But this time, there is a second half. Ahem Du Yishan cleared his throat: "Well, students, the first half of our group meeting is over. You can take a break for fifteen minutes. When you come back, let Chang Haonan demonstrate how to carry out efficient and accurate computer simulation and auxiliary design through actual calculation examples. As his words fell, everyone in the conference room stood up one after another, preparing to move their bodies, or go out to use the toilet or something. But when Xia Tian opened the door first, the scene outside was so frightening that she subconsciously took two steps back and almost fell to the ground ??There was a large group of people surrounding the door in darkness. At a rough estimate, there must be twenty or thirty people, and some of them were very old, and they could be identified as teachers at a glance. "This is" Others in the conference room also noticed something strange outside. At this time, a familiar figure of Chang Haonan quickly entered the conference room from outside. It is Liu Hongbo. Xiao Liu? Whats going on outside? ?Du Yishan was a little confused about the situation for a while. Uh...Teacher Du, thats it. Liu Hongbo raised his arm to wipe the sweat from his forehead, and then explained: "I heard from Junior Brother Fang Zhen yesterday that there will be a small lecture on computer simulation in the second half of your group meeting today, so I thought of bringing a few students over to listen together. But while I was waiting outside, I I met a few other teachers, and when they found out about it, they all went back and called a few of their students, and just like that... it spread. " At this time, another teacher from outside the door also poked his head in: Academician Du, we... But he stopped mid-sentence, because the small classroom in front of him obviously couldn''t accommodate the large group of people outside. ??But if I just go back like this, I would still be a little unwilling to do so. After all, it was Academician Du who hired him, so his level must not be bad. Forget it, Xiao Liu, please contact the dean and tell him that I want to organize a temporary meeting of several research groups from the Department of Aircraft and borrow the newly built multimedia classroom. ?Du Yishan had no intention of hiding anything, but the current scale has indeed far exceeded his initial expectations.??? About twenty minutes later, the group moved to the multimedia classroom in the next building. Mainly because there is an LCD projector here that was not very common in 1996, the kind that can be directly connected to a computer. ?The huge crowd attracted more teachers along the way. Among them was even Tang Lintian, the dean of the School of Aeronautical Science and Engineering. After personally delivering the key, he did not go back directly, but followed him to find a seat to sit down. ??In short, when Chang Haonan sat on the podium with his laptop in his arms, the classroom in front of him, which could accommodate almost 200 people, was already more than half full. When Du Yishan agreed to give a demonstration the afternoon before yesterday, his mentality was still "it''s just a group meeting, what kind of scene have I not seen?". but now I have never seen this scene before. Although he had led many interns before his rebirth, he had never given lectures on such a large occasion. There were quite a few professors in the college. So to say that I am not nervous at all would be a lie. But Chang Haonan also knew that he would have to face this kind of situation sooner or later in the future. And the level will be higher. So theres nothing wrong with exercising in advance. ?Thinking of this, he felt a lot calmer. ?Du Yishan, who was standing next to the podium, noticed Chang Haonan''s nervousness at the beginning. But just as he was about to go up and say some words of comfort, he found that the latter had already adjusted himself, so he just sighed secretly in his heart, and then picked up the microphone next to him. Everyone who is here to listen, please find your seat as soon as possible. The second half of todays group meeting will begin soon. The academician spoke, and the effect was immediate. The whispers below quickly disappeared. But most people still looked at Chang Haonan with curiosity or suspicion. Although most people had guessed before they came that it was unlikely to be Du Yishan himself giving the lecture, the general estimate was that he invited experts from outside. And Chang Haonans face Its really too young. Looks even younger than most of the graduate students here. Good afternoon, teachers, and fellow seniors. According to Teacher Dus arrangement, I will briefly share with you some knowledge of computational fluid dynamics and its application in solving engineering problems. ?This first sentence clearly confirms his student status, and since everyone is called senior brother and senior sister, they must not be senior graduate students. Tang Lintian, who had just opened his notebook, frowned slightly for a moment, and then showed a dumb smile. ?Du Yishan would definitely not joke casually, so he judged that there were some deviations in the process of word-of-mouth transmission of the news. It was supposed to be just a study progress report, but it was misrepresented as a lecture ?Thinking of this, Tang Lintian closed the notebook in front of him again. ?Of course, the academicians face still had to be given, so he didnt leave midway and was still prepared to listen carefully. Before talking about practical applications, I have to talk about some basic theories... ?Contrary to most people''s expectations, Chang Haonan did not directly start demonstrating the modeling and calculation process on the computer. Instead, he picked up a piece of chalk and walked to the blackboard. (End of this chapter) Chapter 40 Listen well! Chapter 40 Listen well! Chang Haonans presentation at this group meeting was originally mainly for graduate students in his own research group. Even in Du Yishans research team, not all of them are people like Yao Mengna or Fang Zhen. Most people have a relatively poor foundation in this area. ??If we start directly talking about the simulation calculation process, for these people, it is basically equivalent to just looking at the facts. People often dont understand things that they dont understand at all. At best, you can just sigh and say how awesome it is afterwards, and you wont really learn anything. Thats why he planned to start with the theoretical part at the beginning. But just now when he saw many teachers sitting in the audience, Chang Haonan did feel shaken for a moment. ??? Will these well-established professors get bored of lengthy explanations of basic theories? Would you like to show off your skills in simulation first? But the sentence Du Yishan just said mentioned two very crucial words: Audit. No matter how many people are sitting below, except for members of the same group, they are all listening. ?This made him finally decide to continue with the original plan. "We know that the force of a fluid acting on an object can be recorded as a function of 7 independent variables, F=f (l, , , U, , , c), where l represents a certain representation of the object Length, as the characteristic length studied, represents..." After dimensional analysis, the force F on geometrically similar objects of the same type can be recorded as..." Lets discuss the dimensionless parameters appearing in the above formula in turn At the beginning, Chang Haonan was indeed a little nervous. But as the explanation continued, he quickly entered the state, and the chalk in his hand quickly wrote down one calculation after another on the blackboard. Even people with relatively weak theoretical foundation can form a complete cognitive system for computational fluid dynamics simulation as long as they follow his ideas. This is the power of knowledge given by the system. In the last life, Chang Haonan was certainly very familiar with the application of computational fluid dynamics. But when it comes to these theories, they can only be regarded as understanding at best. After being reborn and receiving system buffs, this theoretical knowledge seemed to be engraved in his mind. Chang Haonan actually felt that this basic theory was of little use, and it did not delay its application anyway. But when the projects to be done later became more and more complex, he realized that this view was so wrong! ?If you dont master the basic principles, you will always be following in the footsteps of others. In fact, this cannot be said to be Chang Haonans problem alone. The period from the late 1980s to the early 1990s was the period when the aviation industry was most impacted by new knowledge. A large number of theories and technologies that had not been exposed before poured into the country in a very short period of time, and they came from both the Soviet Union/Russia and the West. Most of the time, the professors giving lectures on stage and the students listening in the audience are still in the learning process. Hence, the college students of his generation, except for some truly gifted and talented people, have learned a bit... extensive but not sophisticated. That''s why Chang Haonan chose such a more transparent way of speaking. On the other side, Tang Lintian, who was listening below, had realized that there was something wrong with his judgment just now. ??Although I havent talked about the specific application part yet, such solid theoretical ability is definitely not something that a novice who needs to report learning progress in a group meeting can possess. At this time, what Chang Haonan talked about finally entered the numerical simulation part. "The direct numerical simulation method is to directly solve and calculate the N-S equation numerically. This method does not require approximate processing of turbulent flow, so its calculation results are more accurate. However, in most cases, this solution method is too computationally intensive. Huge, completely unrealistic given current computer capabilities. For indirect numerical simulation methods, there are two main branches, namely the Reynolds average method and the large eddy simulation method "The turbulent kinetic energy and dissipation rate equations of the RNGk- model of the Reynolds average method are very similar to the standard k- model. By integrating the previous equation 47, the impact of the effective Reynolds number (vortex scale) on turbulent transport can be accurately understood , which aids in the simulation of low Reynolds number and near-wall flow problems..." ?Unconsciously, Chang Haonan had filled the four huge blackboards in front of him with writing. Tang Lintian is deeply immersed in simulation. He also knows all the things Chang Haonan talks about, so he can devote some energy to paying attention to the status of other people around him. Comparing to the basic physics content just now, even some teachers do not understand the theoretical part about simulation thoroughly in this part, so many people have already opened their notebooks and started taking notes. As for the graduate students who were brought here, let alone them. ??They are all continuing their studies after graduating from a bachelor''s degree. How could they not realize that the computer age has arrived? However, after all, there are only a few people who can rely entirely on self-taught. ?Most people just hang around in front of the gate of this field without being able to enter, or they reluctantly get in but don''t get the point. In this case, a systematic theoretical explanation almost from scratch is nothing less than a guiding light for these people. ?At this time, almost an hour and a half had passed since Chang Haonan started his lecture, but most people in the classroom still maintained their rapt attention. For Tang Lintian, this was even more surprising than the content of the story itself. As a professor who often teaches students, he knows very well where the limits of the classroom are. A class lasts 45 minutes, and most people can only concentrate for 30-35 minutes. After that, even good students will be more or less distracted. But in the current classroom, 90 minutes have passed, and this has not happened at all. ?Tang Lintian also opened his notebook. ?However, what he recorded was not the knowledge points taught by Chang Haonan, but a recollection of the latter''s teaching methods from the beginning to the present. ?About ten minutes later, looking at the contents of the notebook, he shook his head with some self-deprecation. ?Just now I just listened to the lecture and I didnt feel anything. Now after I listed out the other persons ideas, I realized that being able to explain complex knowledge in a simple and profound way depends entirely on the other persons profound theoretical skills. ?Even if he wants to turn these things into lesson plans, it will take a lot of effort. ?However, Chang Haonan has been standing in front of the podium to explain without writing! ?Thinking of this, Tang Lintian suddenly became curious. How can a beginner make progress after listening to the entire explanation just now? Coincidentally, sitting next to him was a boy who looked like a student and was wearing a shirt. At this time, the latter had already taken notes on about the fifth page. ?So while Chang Haonan was erasing the blackboard, Tang Lintian stretched out his pen and lightly touched the other person''s arm, preparing to ask him how he felt after hearing this. Unexpectedly, the boy didn''t even raise his head, he just shook his arm and said in a very impatient tone: Dont move and listen carefully! (End of this chapter) Chapter 41 How about trying the honey trap? Chapter 41 How about trying a honey trap? Tang Lintian, who was almost elbowed in the face by the boy sitting next to him, showed a somewhat embarrassed smile. He is a good-natured person, he is not angry at all, he just feels a little embarrassed. Fortunately, after looking around, I found that everyone was either taking notes or looking at the blackboard, and no one else noticed what just happened. ? Tang Lintian breathed a sigh of relief and fell into thinking again ?Although his attempt to strike up a conversation was unsuccessful, his original goal was still achieved. Judging from the other party''s reaction just now, it is obvious that the gain is not small. ?This suddenly gave Tang Lintian some ideas. He planned to wait until the group meeting was over and go to Du Yishan to ask about the student''s situation. ?Perhaps ?Should you consider directly hiring someone to stay at the school after graduation? ?Being able to join Du Yishan''s research group, his scientific research ability is definitely not good, and his lecture level is still so high, it is simply a treasure. If by then we can cultivate a large number of the aviation talents that the country is most in need of... ??Tang Lintian''s thoughts have gradually begun to let himself go. But if you are a doctor, just giving a lecturer title may not be very attractive... ?Thinking of this, his excitement quickly turned to worry. In this year, there is no institutional policy for directly appointing associate professors after doctoral degrees. Let alone the dean, Principal Jinghang cannot make this decision alone. You have to work as a lecturer for at least two years before you can start applying for review. And because of limited funds, the salary of university faculty and staff is also relatively low. So overall, the appeal is actually quite limited. ?Hence, Tang Lintian has already begun to think about what other attractive conditions the college can offer. Prioritize housing allocation? Resolve the Beijing household registration? ?After thinking for a long time, Tang Lintian still couldn''t figure out a safe way. For a doctor with such a strong ability, if he goes to a foreign company, it may not be a problem to earn more than 100,000 or even 20,000 to 300,000 a year. In the two years that I wasted working as a lecturer, I had almost earned a house and a household registration in the capital. Why dont you try a honey trap? ?Tang Lintian rubbed his chin, his thoughts becoming increasingly inconsistent. Just when he was already thinking about whether there was any young female teacher in the college who could tie him up, Chang Haonan finally sat back in front of the computer and officially started to demonstrate the calculation examples of computational fluid dynamics simulation. Compared to the theoretical explanation just now, everyone is more interested in this part. Naturally, this also includes Tang Lintian. ?So he had to put his thoughts aside for the time being and return his attention to the curtain in front. At the same time, he turned the notebook to a new page, ready to see what the other party''s skills were in the field of practical applications. The process of computational fluid dynamics simulation can be roughly divided into the following six stages. Chang Haonan said as he opened the 3D modeling software on his computer and continued to preach while it was loading: Conduct three-dimensional modeling of the research object, establish the simulation calculation domain, mesh the calculation domain, determine the calculation model, solve the calculation and post-process the simulation results. A real simulation project would take at least a few days if it started with three-dimensional modeling, so it was naturally impossible for Chang Haonan to go through the entire process. Long before the group meeting started, he had already thought about the detailed distribution of this part of the content. "This computational simulation process is covered in many relevant guide books. Because today''s time is limited, I will focus on some details and key points in the simulation. These are some of my personal experiences. They should not be found in textbooks. of these contents. Chang Haonan said this casually, but it made some teachers below who usually just read textbooks feel a little ashamed. "After establishing the 3D model, you must remember to make necessary corrections to the model, otherwise problems may occur during the meshing process. For example, the model on the screen now is the nose part of an aircraft. We need to correct it. A small section of the radome head was solidified to make it suitable for volume meshing..." "According to my experience, the quality of the three-dimensional volume mesh must be at least 0.25 to enable more accurate simulations. Therefore, for complex models, do not directly generate the volume mesh. My personal habit is to set the line mesh first, and then Set up the surface mesh to generate a surface shell mesh, and then use the shell mesh to generate a volume mesh..." Because Chang Haonan directly used the engineering files from his previous work on the J-7 improved model, there were very few parts that required him to actually get started with the operation. However, this did not affect the excitement of the process, but instead freed up his energy to focus on the operation steps. The more difficult and error-prone areas will be explained in detail, and the demonstration will be focused on them. ?Most of these contents have nothing to do with the system, but a lot of experience that Chang Haonan himself summed up during more than 20 years of stumbling in the previous life. For the vast majority of beginners who are listening to the lecture below, it does not make much sense to repeat to them the "optimal problem-solving process" provided by the system at that time. On the contrary, the experiences and lessons of these predecessors are what they need most. ? Anyone who has done research or written code knows that the most desperate and painful time is when you clearly know that there is a problem, but you have no idea where the problem is. ?Hence, these "wrong question collections" shared by Chang Haonan quickly aroused a lot of resonance among the audience. Some people even realized their previous mistakes on the spot. Tang Lintian, who was taking notes, was even more frightened. Many of the simulation techniques and key points that Chang Haonan just talked about were things he had never even thought about. Some of them have never been encountered before, and some of them have been encountered before, but they didnt even know that they did something wrong before. In numerical simulation, it is very likely that errors will collide and lead to correct conclusions, but these concealed errors will not really disappear, and sooner or later they will explode in other projects. ??He simply couldn''t imagine how this young man who was clearly only in his twenties could have such rich experience. ?This further strengthened Tang Lintian''s determination to keep Chang Haonan in school. "After completing the calculation, if you want to further determine the accuracy and reliability of the calculation results, you can also conduct an independent verification of the impact of the number of grids on the accuracy of the calculation results. However, this is not a necessary part. In addition, now Its getting late, so I want to stop here today. I hope what I just reported can bring some inspiration to you, thank you all! As Chang Haonans final words of gratitude fell, the whole classroom suddenly burst into endless applause. (End of this chapter) Chapter 42 Break the rules, go straight! Chapter 42 Breaking the rules and going straight! ?Although Chang Haonan has always said that he was sharing and reporting, the more than three hours of content just now was regarded by almost everyone as a lecture. And it is a very high level of teaching. The contempt and doubts about Chang Haonans young face at the beginning were all wiped away. ?However, the group meeting obviously will not end simply like this, because before the applause has completely ended, many people have already raised their hands to indicate that they want to ask questions. ??Taking advantage of this moment, Tang Lintian left his seat and found Du Yishan who was sitting in the first row. The latter also memorized several pages just now and is currently summarizing and organizing these contents. Academician Du, I have something to ask you. Tang Lintian whispered, and at the same time pointed to the outside of the classroom, indicating that he wanted to go outside to talk alone. ?Du Yishan looked at his watch, then at Chang Haonan who was answering questions on the podium, but got up and followed him out. Dean Tang, I just have something I want to tell you. The two of them came to the door of the classroom and stood still, but it was Du Yishan who spoke first. Please speak. It goes without saying that Du Yishans status in the academy was so important that Tang Lin Tiangang had to swallow his own problems first. What do you think of the seedling inside? It seems that Academician Du, you have the same idea as me? This sentence made Tang Lintian''s eyes light up, and he immediately rubbed his hands excitedly: "It''s true that heroes think alike." This reaction was something that Du Yishan couldn''t handle. ??Because he had already asked the college for a spot for direct PhD study the year before, he was a little embarrassed to speak again this time, so he was prepared to be a little tactful. ?The question just now is actually just a less straightforward way to get to the topic. But what does thinking like me mean? What do you think of my students? ?Who has the same views as your hero? "etc" Du Yishan, who was a little confused, quickly raised his hand to stop Tang Lintian, who was still excited and was about to say something: "I haven''t said what I want to do yet." ) Tang Lintian slapped his thigh and made an expression like "I don''t know what you think?": I understand, I understand, you want to keep good talents in our school. Obviously, neither person realized that the other person was not on the same channel as themselves. Ouyou, the two of us really want to get together. ?Du Yishan didnt expect that the other party had the same idea as him, but it was good this way, it would save him a lot of talking: Thats it? As long as he can pass the postgraduate recommendation and avoid the interview, we will make an exception and let him skip the masters stage and directly study for a doctoral degree. Tang Lintian, who had heard the first half of the sentence, almost subconsciously prepared to take over everything. After all, if Academician Du made a statement, there was still a high chance that his student would stay in the school. As for what needs to be solved by him as the dean, it is nothing more than some treatment issues. But before he even started to express his position, something was wrong. ? ? "Go beyond the master''s level and study for a doctorate?" ? ? ? These words even made Tang Lintian''s brain freeze for a short period of time. After taking a few seconds to think about the meaning of this sentence, he finally realized that he might have misunderstood it just now. ?But the focus is no longer on this. He is an undergraduate? ?The administrative affairs of the college are mainly managed by the secretary. As the dean, Tang Lintian may not even know how many students there are in the college. It is too normal for him not to recognize Chang Haonan''s academic stage. Yes, you will be a senior in college next year, so I asked you if you are a good prospect. ?Du Yishan nodded, showing a satisfied expression. The surrounding ambient temperature seemed to have become higher in an instant. There is nothing to say about Academician Dus vision, but if you want to study for a doctorate directly..." Tang Lin Tianxin said that this was not just a good seedling, but a monster, but it was not easy for him to make such a request to the principal twice in three years. But Du Yishan didn''t care about this. He hesitated a little when he heard Tang Lintian''s answer, and immediately put on a serious expression: "I have to make it clear to you, Xiao Chang has already published a paper in the Journal of Aeronautics and Astronautics, and also helped the 603 Institute to complete a project. His score is the first in their class this time. You just have a good theoretical foundation." Ive also seen that students like this dont happen every year. In fact, Chang Haonan''s paper has only been submitted for a little more than a week and is still in the review stage. ?However, based on the quality of that paper, this statement cannot be considered a lie. It will be only a matter of time before it is published. "If he really wanted to just study for a master''s degree, then Xiao Chang could definitely go to a better school. I had to personally come forward to get him to agree to stay with us and directly study for a doctorate. Don''t you, Dean Tang, think this is such a great thing. If you really want to study abroad, you can still get a bachelors degree abroad. If you dont go back, it wont be just our school that will lose. ?Du Yishans words were of a very high level, and all the parts that can be directly verified are absolutely true, but elsewhere he was bluffing a lot, and it was also laced with serious workplace PUA. ???In short, after Tang Lintian heard this, he felt ashamed of his hesitation just now - facing such a genius, you can''t even do such a small thing as making an exception and applying for a direct PhD, so why are you so embarrassed to be the dean? ThenIll go find the principal tomorrow. Huh, thats pretty much it. ?Du Yishan showed a satisfied expression after getting what he wanted, then unbuttoned the top button of his shirt and stretched his aching neck. When the two returned to the classroom, Chang Haonan happened to be answering Professor Liu Hongbo''s question. The latter was recently studying the wind load effect of very large oil tankers through computational fluid dynamics methods. For this purpose, the existing CFD software needed to be restructured. Compile. "The compilation of solvers and libraries can be done through the wmake compiler. Wmake requires a file list during compilation. In addition to the icoFoam.C source file and the createField.H header file, the files and options files are also required during the compilation process. make file..." ?Du Yishan and Tang Lintian saw Chang Haonan draw a tree diagram of the file structure on the blackboard at the door. This is C++...can he program? ?Tang Lintian suddenly doubted the authenticity of what was happening in front of him. Otherwise, you think I would just pull this old face off and apply for an exceptional opportunity to directly study for a Ph.D.? Du Yishan said and found a seat near the door to sit down: You can ask Liu Hongbo about programming. He has done a lot of research. In fact, he discovered Xiao Chang and recommended it to me during class. Tang Lintian didnt believe this sentence at all. He was almost certain that Du Yishan snatched the person away. At this time, Chang Haonan happened to have finished answering Liu Hongbo''s question. Although the enthusiasm for asking questions in the audience was still undiminished, it was indeed a bit late. In addition, he was worried that Chang Haonan''s physical strength might not be able to bear it. Du Yishan had no choice but to go on stage in person and give a brief summary. This was a brief summary of the scale of this event. The grand group meeting came to an end. (End of this chapter) Chapter 43 New model Chapter 43 New Modification The action at Institute 611 was quite rapid. Two days later, Chang Haonan met Lu Yuying who rushed to the capital by plane. After the team meeting yesterday, he opened the system and took a look and found that the scientific research points had become 36 points. Obviously, although he was talking about things that had been done before, the audience below was no longer 4 professors but more than half of the college, including many influential professors, so he still received 10 scientific research points. ??As for Lu Yuying, who is sitting in front of him now, although there is only one person, his influence is no less than that of the hundreds of people yesterday combined. In fact, when Chang Haonan just received the call from this person yesterday morning, he even felt for a moment that he was not a liar. After all, his paper has not been published yet. Even if I later figured out the whole story, I still felt a little confused. ??Lu Yuying''s name may not be well-known outside, but it is well-known within the aviation system, especially the aviation system of this era. Since the J-7C/D model is not a success, and Song Wencong has served as the chief designer of Project 10, he is currently the person with the most say in the J-7 series of aircraft models. ??Although the purpose of publishing the paper was to be seen by people within the aviation industry, Chang Haonan really did not expect that the first person who contacted him would have such weight. Hello, Chief Master Lu. Comrade Xiao Chang, nice to meet you. After meeting, the two shook hands and then sat in a small conference room specially arranged by the college. ??Although Lu Yuying has a high status in the aviation system, his identity is sensitive after all, and it is difficult to publicize his itinerary. Therefore, the only people on Beijing Airlines who know about this matter are Du Yishan and Tang Lintian. The latter really didnt expect that only ten hours later, he would see this student again on such an occasion. In fact, even Tang Lintian didn''t need to know, but Du Yishan suddenly said last night that he was rushing to Shengjing for a meeting, so he left the reception to him. Since we had already communicated on the phone yesterday, Chang Haonan came prepared. After sitting down, he took out several floppy disks containing engineering documents from his schoolbag, as well as the complete calculation instructions that were handed in first. An assistant next to him opened the laptop and inserted the first floppy disk, while Lu Yuying put on his glasses and began to flip through the paper document. Comrade Xiao Chang, Im a little curious. Since you deliberately concealed part of the content in the article published in the journal, why did you bring it out so readily now? ?Lu Yuying raised her head slightly, looked at Chang Haonan sitting opposite and asked. It is no boast to say that the design methods I reflected in these engineering documents should be considered relatively advanced in the world, so at least in a short period of time, we cannot just let foreigners learn them casually. " ?This is not the first time Chang Haonan has been asked similar questions, so he answered almost without thinking: And now that you are asking in person, Commander Lu, I have no reservations. After all, these studies are originally intended to enable China to build better aircraft. After hearing these words, Lu Yuying''s slightly narrowed eyes suddenly widened a little. No wonder he was shocked. Chang Haonan''s thoughts would have been normal 20 years ago or 20 years later, but in the mid-1990s, it was indeed quite rare. After being silent for a long time, Lu Yuying nodded: "You are worthy of Comrade Xiao Chang to have such awareness!" ?This somewhat lackluster sentence made Chang Haonan a little confused. Why did the other party suddenly act like he had known him before? In fact, since Chang Haonan already knew Lu Yuying''s name, when the two talked on the phone yesterday, they introduced themselves very briefly. In addition, Du Yishan, who is the tutor, did not show up today, so just like Tang Lintian yesterday, Lu Yuying still does not know Chang Haonan''s true identity as a student. He always thought that the other party was a young teacher poached from abroad by Beijing Airlines. . And in this year when others are rushing to go abroad, it is natural to choose to return home voluntarily and show such a high level of awareness. ?This is where the slightly strange exclamation just came from. After all, Lu Yuying was very familiar with the J-7 aircraft, and had already done some research on the design of the mandibular inlet before, so it only took about forty minutes to read the technical documents provided by Chang Haonan. Comrade Xiao Chang, the degree of completion of your design... indeed far exceeds my imagination. "General Manager Lu was very impressed. Although I am very confident in my integrated design of the inlet/cone front body, when it comes to the overall design of the aircraft, it can only be regarded as the beginning. Many details need to be designed." Improve and optimize the hole data, so..." Before Chang Haonan finished speaking, Lu Yuying waved her hand: "I can see this without saying anything, but it''s amazing that you can come up with such a preliminary design plan without the relevant hardware. If I hadn''t seen it with my own eyes, I wouldn''t have believed it. of." As for the subsequent work, we people in the aviation industry system are not people who live for a living. Do we have to wait for others to feed us everything? Hearing this, Chang Haonan also laughed. Indeed, in the last life, without the help of his plug-in, didnt the comrades in the aviation industry build the J-20 15 years later in 2011? I did underestimate their ability to act just now. So, I dont know what your thoughts are on this design plan Chang Haonan asked tentatively again. Although the initial purpose of using it as a stepping stone has been exceeded, he will never mind getting one fish and two fish to gain more scientific research points and experience points. ?Due to lack of relevant experience in the previous life, the J-7FS project actually had a strong experimental meaning from the beginning. The S in the model name FS means "test". But now, with the more complete design method provided by myself, I wonder if there is a chance to turn the J-7FS into the J-7F? To tell you the truth, I do have a few more ideas about the design of the radome, that is, the cone front body, and I would like to ask Comrade Xiao Chang for your opinion... In fact, Lu Yuying already had a relatively clear plan in mind when he saw the paper for the first time. After seeing the engineering documents provided by Chang Haonan, he was even more delighted to discover that the actual performance potential of this design was actually greater than what was written in the paper! ?So he had a bolder idea, which was to further increase the diameter of the radome to 600mm to install a new model of pulse Doppler (PD) radar under development. As for the increased weight, it can be compensated by changing the radome wall structure from a solid half-wave wall to a lighter C-shaped sandwich. ??But considering that in this design, the radome itself is still part of the air intake structure and is responsible for first-level compression of the incoming flow. So this seemingly small change may affect the whole body. ?Thats why I wanted to ask Chang Haonans opinion. Obviously, Lu Yuying is serious about this model. (End of this chapter) Chapter 44 Fuji Electric’s small moves [please read] Chapter 44 Fuji Electrics small moves [Please read] ?At the same time that Chang Haonan and Lu Yuying were exchanging design plans, they were in a closed factory area on the outskirts of Fucheng City, Sichuan Province. ?Two men, one tall and one short, with a bit of a charlatan attitude got out of a slightly dilapidated Changhe CH6320 van. ?The short man among them looked powerful at first glance, and he was carrying a camouflage bag in his hand. ?Judging from the specially reinforced carrying beams and the handles deeply embedded in the palm of your hand, the contents inside must be quite heavy. But in this mans hands, it was as easy as a ball of cotton. The tall man who followed him had a tough face and sharp edges, and his figure was much thinner than the former. But if you look carefully at his palms and forearms, you can see the traces left by long-term practice of foreign martial arts. Definitely a more difficult character to mess with. At this time, a woman wearing a black women''s suit trotted over from a distance. After standing still, perhaps because she seldom exercised strenuously, the woman bent over and took several breaths before she finally recovered. You two should be Boss Yan and Mr. Hao, right? I am Gu Lin from the Technology R&D Department of Changhong Group. You can just call me Secretary Gu. That''s right, of the two people who got off the car, the shorter one was Hao Dagang, who had had a relationship with Chang Haonan before. The other one was called Boss Yan, but he didn''t look like a boss at all. Yan Wenbin. Hello, Secretary Gu, we are here to find Engineer Wang Luoyong. "I know, it was Minister Wang who asked me to pick you two up. Please come with me." Gu Linchao turned around and led the two of them towards the R&D center not far away. ?Ten minutes later, Yan Wenbin and Hao Dagang, led by Gu Lin, finally arrived at the door of Wang Luoyong''s office. ??But before Gu Lin could make a move, the door in front of the three of them suddenly opened, and a man in a suit and leather shoes walked out, with a defiant look on his face. Then he pushed past the skinny Gu Lin and went straight down the stairs. At this time, Wang Luoyong also heard the movement at the door, raised his head and saw the three people outside. Okay, Secretary Gu, go ahead and do your work first. ?Wang Luoyong put down the multimeter in his hand, stood up, and waved to Gu Lin, who was standing at the end. Okay, Minister Wang, call me if you have anything else. ?After watching Gu Lin leave the office, Wang Luoyong turned back to the two people waiting next to him. Uncle Yan, have you brought your new fan sample? In fact, the reason why Yan Wenbin was able to get a second chance after failing in the first bidding was that in addition to Changhong Group''s idea of ??increasing the localization rate of parts and components, it was also inseparable from Wang Luoyong''s role in it. role. Yan Wenbin was a scout when he was young. He once saved the life of his battalion commander, Wang Luoyong''s father, during the war. It is also for this reason that although Yan Wenbin is not a few years older than Wang Luoyong, the latter still calls him Uncle Yan. "I brought it, it''s all in Xiao Hao''s bag." Yan Wenbin pointed to the camouflage bag that Hao Dagang had just placed on the ground: "There are some specialties in it for the old battalion commander. We have a tight schedule this time. Maybe I dont have time to go see him specifically. ?Wang Luoyong unzipped the camouflage bag. In addition to a few wooden boxes containing fan samples, there were some packaged mountain goods. Dont worry, we understand the rules. Its not something valuable, otherwise I wouldnt dare to bring it to you. Yan Wenbin laughed as he watched Wang Luoyongs careful inspection. "Uncle Yan, you don''t know that the last time the bidding was postponed, our technology research and development department was under a lot of pressure. Fuji Electric''s public relations department is very powerful, so I have been careful lately, for fear of being caught. So You must not leave these things with me. ??Wang Luoyong said as he took out the wooden box, stood up, took Yan Wenbin and Hao Dagang and walked outside the office: Lets go, lets go to the testing center first. "Is it so serious?" Hao Dagang asked in surprise: "Shouldn''t it be your boss who has the final say on what brand of parts to use?" Yan Wenbin next to him saw some clues from Wang Luoyong''s tone and expression. After the last bidding, Wang Luoyong told him that as long as the improvement plan they submitted this time was not much worse than Fuji Electric''s model in terms of performance and provided some advantages in cost, Changhong Group would choose Domestic fans as an alternative. ?That''s why he asked Wu Yifan to find someone to optimize the fan performance. Dayong, has the situation changed again? Yan Wenbin asked tentatively. "Sigh..." Wang Luoyong put on the blue work clothes used for testing and sighed. He hesitated for a moment before replying: "Uncle Yan, I didn''t expect that the Japanese would do so many tricks..." "what happened?" Hao Dagang and Yan Wenbin spoke almost at the same time. After the previous announcement of the extension of the bid validity period, suddenly a local company in Sichuan Province called Hongxiang Electric Machinery Factory also submitted a new design sample. The technical specifications are almost identical to the Fuji Electric model. Butwhat does this have to do with the Japanese you just mentioned? Hao Dagang looked at Wang Luoyong, who was bowing his head in silence, and Yan Wenbin, who had a serious look on his face. He still didn''t understand the situation: And if there is such a company in your local area, why didnt they participate in the last bidding? "this" ?Wang Luoyong scratched his head, and after confirming that there was no one else nearby, he explained in a low voice: "The original Hongxiang Motor Factory went bankrupt in 1992. Now this is a joint venture company established with Fuji Electric. It is said to be a joint venture, but in fact it is an assembly plant. I took it apart during the inspection before and found that the blades and bearings were all damaged. I bought it directly from Fuji Electric. Can this be considered domestically produced? Hao Dagang was dumbfounded after hearing the explanation. ??If Chang Haonan heard this conversation, I''m afraid he would be familiar with this word game of disguising imports as domestic products. But for Chinese companies in this era, this trick is still very unfamiliar. ?After hearing Wang Luoyong''s answer, Yan Wenbin''s face showed an expression of sudden realization. Changhong Group is a local state-owned enterprise managed by Sichuan Province. Obviously, Sichuan Province has sufficient motives to require Changhong Group to choose a provincial company to become a parts supplier. Whats more, the performance of the parts provided by others is inherently better. After two rounds, the advantage on his side was reduced to one advantage. Wang Luoyong is obviously very helpless about this: "Although the structure of the axial flow fan is very simple, after all, the final production process is local in Sichuan Province, and Fuji Electric is only a second-tier supplier. On paper, it can indeed be counted as domestically produced, but in fact everything, including The technicians who work with us are all from Fuji Electric. So when we first came here, the person who walked out of your office was a Japanese? Hao Dagang thought of the man he met at the door of Wang Luoyongs office not long ago. Fuck the Japanese, they are just a Japanese comprador, relying on all the technologies provided by Fuji Electric to make fun of me... Wang Luoyong was obviously a little angry when he mentioned this matter: The original director of Hongxiang Electric Machinery Factory contracted the factory at a low price during the restructuring, and then declared bankruptcy and liquidation. He accepted the capital injection from Fuji Electric to establish the current joint venture Hongxiang Electric Machinery Factory. MD, what a scum ?After hearing the identity of that person, Hao Dagang, who was already more arrogant, subconsciously wanted to spit, but he held it back thinking that he was still in his office building. (End of this chapter) Chapter 45 Fan design with dimensionality reduction Chapter 45 Fan Design for Dimensionality Reduction Strike "Then...then we have no chance?" ??Yan Wenbin''s face was full of unwillingness. Not only because he has invested a lot of energy and cost in this project, but also because he originally planned to use this order from Changhong Group to build the reputation of his Owl brand motor in the industry. "That''s not necessarily the case." Wang Luoyong shook his head: "Given the size of our Changhong Group, we still have some say, so there is no room for maneuver." Uncle Yan, if your Owl Motor products can surpass Fuji Electric in both performance and cost, then we will have the confidence to convince the superiors. In the final analysis, this matter was because the method of creating opportunities for Yan Wenbin by extending the bidding deadline was too crude. Therefore, Fuji Electric discovered the key to the problem and then seized the loopholes in the localization rate statistics method. Just stole the house. In addition, the Changhong Group is not completely reasonable, so they dont dare to speak too loudly. But if Yan Wenbins Owl Motor can produce a more convincing sample than Fuji Electric, then the situation will be completely different. At least from the perspective of Wang Luoyong and Chang Hong Group, they have the capital to argue with their arguments. "But" As a veteran who only went to junior high school, Yan Wenbin is not very technical, but he participated in the entire bidding process last time, and he still has a rough estimate of the gap between his own products and Fuji Electric. Although he did not know the term marginal effect, his past experience in the army told him that it is easy to improve training results from unqualified to qualified, but it is more difficult to improve from qualified to excellent. After passing the excellent line, he wants to continue to improve. , then it will take even more hard work. The product produced by Fuji Electric is obviously the result of continuous improvement. Therefore, although Hao Dagang was full of praise for the college student who optimized the design, Yan Wenbin found it hard to believe that someone could make the performance of the fan surpass that of the opponent in less than a week. ?However, Hao Dagang next to him seemed more confident: Brother Yan, I think we may not have no chance. I have read the design document provided by Brother Chang, and it makes some sense. After hearing this, Yan Wenbin had no choice but to nod his head and said to Wang Luoyong next to him: No matter what, we are here, lets do a test first and see the results before talking. Uncle Yan, brother Hao, come with me. ??Wang Luoyong picked up the small wooden box with the fan next to it and walked into the test workshop with Yan Wenbin and Hao Dagang. ?Although he also wanted to help with this matter, there was really nothing he could do now. Forging test data, on the one hand, he didn''t bother to do it, and on the other hand, it was completely useless. It was only a matter of time before he was discovered. And more importantly, if we rely on this method to increase the localization rate, wouldn''t it be no different from that of Hongxiang Motor Factory? Its just that the specific process of counterfeiting is different. ?With such regret and guilt, Wang Luoyong placed the wooden box in his hand next to the test equipment, and then opened the lid. There are 6 fan samples neatly stacked inside. Should I say it or not, your injection molding process has made a lot of progress? Since the fan is placed vertically, Wang Luoyong cannot see the blade style at first glance, but even with just a glance, Wang Luoyong can notice the improvement of the manufacturing process. Actually, the process itself has not changed much. On the one hand, the proficiency of our workers has improved. On the other hand, the mold manufacturer said that the manufacturing difficulty of this new blade shape is relatively low. As for technical matters, Hao Dagang naturally gave the answer. ?Wang Luoyong nodded, then randomly pulled out a fan from inside and prepared to install it on the motor of the air duct test bench. ! The moment he saw the shape of the fan blades, he couldn''t help but exclaimed: Your leaf shape is indeed a bit novel. I have worked in Changhong for so many years and I have never seen a similar design. There is no praise or irony in this sentence, it just feels... very fresh. We found someone from Beijing Airlines who studied aircraft design to do this. He may have some different ideas in this regard. Hao Dagang was not surprised by Wang Luoyong''s reaction. In fact, when he saw this leaf shape for the first time, he had similar thoughts to Wang Luoyong. ??But after reading the technical documents provided together, although he did not fully understand it, he at least believed that the other party did have his own complete calculation ideas, rather than just making a strange and exaggerated design to attract attention. Learn to fly? ?In this era, the aerospace field still has a somewhat otherworldly tone, so it is not common for relevant technologies to be "decentralized" to the general civilian field. It is normal for Wang Luoyong to be surprised by this. Well, I have a distant relative whose child is studying at Jinghang Airlines. He said he has a classmate who is pretty good. ??The person who spoke this time was Yan Wenbin, who had been silent just now. ?While several people were chatting, Wang Luoyong did not delay his movements at all. At this time, he had already begun to test the first fan he had just taken out. Yan Wenbin and Hao Dagang stood behind him, nervously waiting for the test results. As the data was recorded on the graph paper one by one, the performance curve of this new fan gradually took shape. Logically speaking, a series of calculations need to be performed later to obtain the final required data. ??But Wang Luoyong has tested the samples brought by Fuji Electric many times before, so... Oh my god...is this data real? ?Wang Luoyong murmured in an unbelievable tone. The direct result of the fan test is the curve of the total pressure coefficient and fan efficiency with respect to the flow coefficient. Generally speaking, different blade designs will have advantages in different flow coefficient ranges, so the so-called advantages and disadvantages are actually a process of performance trade-offs. . But this time is different. ? Yan Wenbin brought this sample with a somewhat strange blade shape. In the entire flow coefficient range he tested, its performance had the advantage of rolling crushing level. ?Especially under the most common working conditions of axial flow fans, the efficiency is even astonishingly more than 15% higher than that of Fuji Electric products. To say that you are crushing is to be modest, it is simply a dimensionality reduction attack! "How is it going?" Seeing Wang Luoyong''s unusual behavior, Hao Dagang quickly stepped forward and asked. "I" ?Wang Luoyong looked at Hao Dagang''s eager eyes, but he couldn''t say any words of praise for a while. ?This result was so exaggerated that he was a little worried that there was something wrong with his test just now. Brother Hao, dont worry, wait until I finish testing all these samples. After finishing speaking, Wang Luoyong quickly replaced the second fan in the box, then called another technician from the next door office and asked him to take the first fan to the semi-anechoic room to measure the noise level. ??However, Yan Wenbin, who had always seemed a little anxious before, calmed down, patted Hao Dagang on the shoulder and whispered: Dagang, I think the result may exceed our expectations. (End of this chapter) Chapter 46 Aviation technology to protect you Chapter 46 Aviation Technology to **** you ? Yan Wenbin and Hao Dagang had been waiting at the test center until it was time for dinner. Wang Luoyong finally measured all the data of the six fans. Uncle Yan, I have to admit, when you said you had found someone who designed an airplane for help, I didnt take it seriously at first. ??Wang Luoyong held the test reports of the six groups of samples in his hand and let out a convinced sigh: But now I regret a little bit. I didnt learn to build airplanes when I was in college. The design of this fan is simply... simply amazing. So the performance is better than that of Fuji Electric? ??Although he could roughly guess the meaning of Wang Luoyong''s words, Hao Dagang, who was afraid of having an empty rejoicing, made sure again. Not only is it better than Fuji Electric, I even think that this is the best solution for our air-conditioning working environment. That...means we might win the bid? ?Hearing Wang Luoyong''s answer, even Yan Wenbin, who had been tense all the time, smiled. Thats so humble, Uncle Yan. Its not time to get off work yet, so Ill go find the general manager right away. While Wang Luoyong was talking, he had already stuffed a sample fan and the test report into his briefcase: Your samples are 15% more efficient than Fuji Electric, and the noise is at least 5-6 decibels lower, and the price is only 80% of theirs. Today, the King of Heaven is here, and we at Changhong Group will also use your products! Eighty percent? ? Yan Wenbin and Hao Dagang looked at each other: During the last bidding, our quotation should only be 50% of Fuji Electrics, right? I said 80% success! Wang Luoyong took off his work clothes and waved to the two of them: Competition in the air-conditioning industry has been very fierce in recent years, so OEMs often lower prices with upstream suppliers. If they quote higher prices now, they will have more room for maneuver at that time. After Yan Wenbin heard this, he nodded thoughtfully and said nothing more. He also knows that this kind of thing is definitely not something he can say to anyone casually. If it weren''t for his relationship with the other person''s father, Wang Luoyong, an employee of Changhong, might have to help the group lower the price. Before leaving, Wang Luoyong called Gu Lin over again and asked her to take the two of them to eat first and then stay at the guest house within the group. After all, it is a major event involving the entire groups new generation product line, and it will take a few days to complete the decision-making process. Subsequently, Wang Luoyong almost ran all the way to the door of general manager Zhao Xin''s office. As the head of the group''s technology research and development department, he is naturally qualified to directly meet with the senior management of Changhong Group. Mr. Zhao, we have a solution, we have a solution! Out of breath, Wang Luoyong took out the test report from his briefcase and placed it on Zhao Xin''s desk. The latter also had a technical background and was the chief engineer of Changhong Group before taking over as general manager, so he didn''t find anything unusual about Wang Luoyong''s performance. He just handed him a bottle of water and told him to take a breather and rest. He picked up the report without thinking about it. After looking at it for a while, Zhao Xin frowned slightly. Minister Wang, I remember that Boss Yan from the Owl Motor Factory is a comrade-in-arms with your father? Facing this question, Wang Luoyong, who had just finished half of a bottle of water, was stunned for a moment. Obviously, Zhao Xin has long known about the relationship between himself and Yan Wenbin. Then he immediately realized the meaning of Zhao Xin''s question. Mr. Zhao, the results of this report are indeed a bit... exaggerated, but I assure you that there is absolutely no falsehood at all. Several colleagues from the technical department were also present when I was doing the test, and they can also prove it. After hearing Wang Luoyongs explanation, Zhao Xin nodded slowly. It''s not that this explanation is very convincing, the main thing is that he has also realized that for technicians like Wang Luoyong, forged reports will not have such outrageous data. But this performance, especially efficiency After the initial shock, Zhao Xin gradually calmed down. He knew that he could not show more doubts about his capable generals at this time, so after hesitating for a moment, he raised his head and asked: Do you know how they made improvements? I remember that during the last bidding, the performance of the samples provided by this Owl Motor Factory was worse than Fuji Electric. They said they found experts in aircraft design from Beijing Airlines and optimized the blades based on the ideas of designing aircraft engines. ??Wang Luoyong actually didn''t hear too many details from Yan Wenbin and Hao Dagang. He only knew that he had found someone from Beijing Airlines to help, but this did not delay him from processing the actual situation. ?Even by some mistake, he actually misunderstood Chang Haonan''s thinking at that time. "Airplane engine?" ?After hearing this answer, Zhao Xin''s expression gradually became subtle: Minister Wang, do you think our entire new generation product series can use this as a publicity stunt? ?These days, the vast majority of Chinese people have never flown or even seen an airplane. So airplanes are still a mysterious thing to them. It is perfectly appropriate to use this kind of thing as propaganda. By plane? ?Wang Luoyong instantly beamed with joy. Since Zhao Xin had already begun to consider publicity issues, there was no need to say more about the final choice of fans. For a moment, the news report about fighter jets he had seen on TV came to his mind. Mr. Zhao, why dont we use the words aviation technology to **** you in our advertising slogan? Okay! Just use this plan! Okay! Just use this plan! In the Haojing 603 Institute, 600 kilometers away from Fucheng, chief engineer Yi Yuanhe held a test flight report in his hand and clapped his thigh excitedly. ?After receiving the data and materials from Du Yishan a few days ago, he and director Zhou Yonghang started modifying the Y-7-100A aircraft almost overnight. Since the first phase of the plan does not require replacement of the wings, it is just a feasibility study on active flutter control. Therefore, in order to improve efficiency, the flight control engineer did not even rewrite the entire flight control, but followed the control rate provided by Chang Haonan. , an active flutter control system was made separately for the wing and installed on the 01 flight test verification aircraft. Of course, this is only a temporary change for flutter test flight. If it can be proven that this active control logic is indeed available, then when the new wing is installed later, this system will still have to be integrated into the new flight control program. Go. In short, after several days of hard work, the upgraded and modified No. 01 aircraft finally completed the flutter test flight again this afternoon. The process went smoothly. Active vibration control is feasible! Thanks to the book friend [Danqing Mozi] for the reward of 700 starting coins! Thanks to the book friend [33021208462734] for the 100 starting coin reward (End of this chapter) Chapter 47 Active flutter control, success! Chapter 47 Active flutter control, success! ?After passing the first phase of verification, Yi Yuanhe immediately organized manpower and began preparing to replace the No. 01 demonstration aircraft with a new wing, and made corresponding adjustments and upgrades to the flight control for the new wing. As for the director, Zhou Yonghang, he went directly back to the office and prepared to call Du Yishan to inform him of the exciting news. ?But just when he picked up the receiver of the red phone on the table, a bald white man walked in from the door. Director Zhou, what happened? I saw that No. 01 had just performed a test flight, and then your people dragged it into the workshop instead of the hangar. Is there any malfunction? Dont worry, Mr. Hogent, Unit 01 is in very good condition. Zhou Yonghang put down the phone and looked at Hogent, who was panting slightly because he went upstairs too fast and was a little nervous, and said with a smile. He also took out a teacup and gave the latter a glass of water. Hodget was obviously relieved after hearing this answer, took the tea cup and sat on the sofa next to him: Since there is no problem, why should the aircraft return to the final assembly workshop? After all, this is the critical stage of airworthiness certification, and it is best not to make changes to the technical status. As a technical consultant for the 7-200A aircraft, Hogent does not have to bear any responsibility, but as a senior engineer of British Aerospace Corporation, he still has to consider his reputation in this industry. So he does not want to see the risk of extraneous matters or delays in this project. It is impossible to change the wings of an aircraft, a huge change that can be seen at a glance, and there is no need to hide it, so Zhou Yonghang, who sat back behind his desk, answered directly: After detailed technical demonstration, we decided to upgrade the No. 01 aircraft with a newly designed wing. Considering that the new wing can bring huge performance advantages, a slight delay in the airworthiness certification work is acceptable. New wings? Hawking, who had just breathed a sigh of relief, stood up again and even spilled a little of the water in the cup: But I have told you before that the new wing will easily induce flutter when installed on the aircraft, and safety cannot be guaranteed at all! I understand that you want to build a passenger aircraft with advanced performance, but before you want to run, you must at least learn to walk. Such recklessness may lead to the crash of the aircraft and the death of people! ?Hodgets Chinese is very good. He only uses English when discussing technical issues because he is worried about inaccurate expressions, so these two sentences really made him speak with a bit of momentum. "Mr. Hogent, of course we are not reckless. In fact, the test flight just conducted was to verify a new technology of flutter control, so now we have the ability to replace the aircraft with new wings while ensuring safety. When he said this sentence, Zhou Yonghang simply felt more relaxed than ever before. To be fair, among the foreign experts invited by 603, Hawkint from the UK is considered the most responsible one, and he is not shy about imparting some of his experience to Chinese engineering personnel. ??But no matter what, these foreign consultants usually look at China Aviation Industry with a more or less condescending attitude. Who makes you lag behind others? But this time the situation is completely different. What others are still on paper, we have already realized. ?This experience Comfortable! New technology for chatter control ??The expression on Hogent''s face changed: "But I am the technical consultant responsible for the aerodynamic analysis of this model. Why am I completely unaware of such a major improvement? How does this new technology work? How can I ensure that the subsequent airworthiness certification work is carried out safely?" "Mr. Hogent." ?This series of questions made Zhou Yonghangs expression become serious: It is true that you are the technical consultant responsible for aerodynamic analysis, but according to the contract, the final decision on aircraft design rests with us. Your job is only to solve the technical problems raised by us. We are not obliged to inform you of all the details of the aircraft design. As for the principles and implementation methods of new technologies, these are the technical secrets of our Chinese Aviation Industry. I dont think Mr. Hawking can just hand over the core technology of your British Aerospace Corporation to us, right? "this" ?Hokgent was speechless by Zhou Yonghang''s two words. After opening his mouth, he couldn''t say anything else. After sending Hogent away, Zhou Yonghang, who was in his sixties, almost jumped back to his desk and picked up the phone receiver again. Lao Du, its successful, weve succeeded here! After the call was connected, Zhou Yonghang was so excited that he didn''t bother to introduce himself. In addition, his voice was slightly distorted. Du Yishan was even stunned for a moment before he realized who was on the other side of the phone. Is it is it Lao Zhou? Did you verify the active vibration control successfully? ?Although I had great confidence in Chang Haonan before, when he really heard the news, the latter''s voice was still a little trembling. After all, this is the first time that Chinese people have been at the forefront of the world in aerospace engineering applications. For these older generation aviation people who have learned and imitated step by step, how can they express their feelings clearly in words? Yes, we have just conducted a test on Unit 01, and the results are indeed the same as the data you got that day. It can increase the flutter critical speed by at least 10%! Zhou Yonghang on the other side of the phone was also excitedly wandering within the length of the phone line: We have already started to replace the wings and flight control of the aircraft, so that the performance of the new Y7-200A will definitely surpass that of the ATR42, and we can finally make a turnaround! No, this is not only a turnaround for the Y7-200A model, but also a turnaround for our 603 Research Institute and even our China Aviation Industry! Lao Du, you didnt see the look on his face just now when the Englishman Hawkint came to ask me what was going on with the new wings. I said it was a technical secret and I had no comment. In the past, foreign experts blocked our technology. I never expected that I, Zhou, would have the opportunity to say this to foreigners! ?Zhou Yonghang talked endlessly into the phone for several minutes, and there were some tears in his eyes at the end. ??Like Du Yishan, he is an old technician who has followed the new China''s aviation industry from scratch, and he is really looking forward to a day when he can feel proud. Although many parts of this Y-7-200A are made in foreign countries, even the prototype of this aircraft is copied. But at least, now we finally have our own core technology on it. A thousand miles begins with a single step. (End of this chapter) Chapter 48 [Please read it! 】New boat, set sail Chapter 48 [Please read it later! New boat, set sail ?After venting his excitement on the phone, Zhou Yonghang finally calmed down. He recalled that Du Yishan seemed to have said on the day he came to 603 Institute that the flutter analysis work of the wing and the subsequent control rate design of the active stability control system were all completed by one of his students. Lao Du, when the Y-7-200A aircraft is replaced with a new wing and completes its first flight, I will definitely give you and your student credit for it! ?Du Yishan and Zhou Yonghang on the other end of the phone are also old acquaintances. How could they not know what the latter is thinking: Oh, you are so proactive about asking for credit. Do you think you are interested in my students? "Don''t say that. Your students and my students are all students of the country." Zhou Yonghang, who had his mind exposed, did not feel embarrassed, but continued: Besides, Qi Laodu is now relegated to the second line, and he doesnt have a main model in his hands. Such a talented young man still has to go to a first-line unit like us to gain experience after graduation. ?However, Du Yishan was completely unmoved: You old fox, I can hear the abacus in your heart even in Shengjing. But this time you must have miscalculated. This student is only in his third year of college this year and is still a few years away from graduation. You probably wont be able to benefit from him before you retire. Junior year? Zhou Yonghang, who sat back on the chair on the other side, looked like he had seen a ghost: "Don''t lie to me. I have read the technical documents. There are many things in them that are not covered at the undergraduate level." "If you don''t believe it, you can come to our Beijing Airlines and have a look. It won''t do any good if I lie to you about this kind of thing. Besides, how can you be called a genius if you have to wait for everything to be taught in class? Take a graduate course in advance for your undergraduate degree. There are quite a few students every year, and I can only say that they are indeed geniuses. Although he said this, Du Yishan could also understand his old friend''s mood. Even he himself was repeatedly shocked by Chang Haonan when he first came into contact with him. "Really a junior?" Zhou Yonghang heard that Du Yishan''s tone did not sound like he was joking, so he could only sigh and said with some pity: Theres really nothing we can do about it. Its still ten years before I graduate with a Ph.D., so I cant wait any longer Few people know that Chang Haonan made an exception and went directly to study for a doctorate. Therefore, Zhou Yonghang calculated the time according to the normal master + doctorate process. ?However, at this time, Du Yishan changed the topic: "But Lao Zhou, you were right just now. Such a talented young man really needs to go through first-line project experience before he can become a great person." "oh?" ?Zhou Yonghang felt that things seemed to be turning around, and he suddenly became interested: "What do you think?" "Well...I need you to do me a favor." Du Yishan thought for a moment and replied: But to start with, although I am indeed prepared to let him participate in major projects in advance, your new passenger plane is not good and is not qualified. Are you going to let him Considering that Du Yishan was having a meeting in Institute 601, and that he actually felt that the Yun 7-200A project was not qualified, Zhou Yonghang guessed what the other party was thinking almost immediately. "Just guess it, no need to say it." Du Yishan knew that Zhou Yonghang would definitely understand what he meant, so he did not let the other party continue: "Just tell me whether you can help me with this, right?" There was silence on the other end of the phone for a few seconds. Tell me, what do you want me to do? Huaxia Aviation Industry is a whole. Although there will be some competition between various institutes, Zhou Yonghang, as an old comrade, is not so narrow-minded that he only cares about the interests of his own 603 institutes and one family. Du Yishan was not polite when he saw this, and directly expressed his thoughts: Dont wait until the new wing completes its first flight. Havent you already determined that the active flutter control method is feasible? Now find a way to turn it into advanced experience as soon as possible and publicize it within the aviation system. By the mid-1990s, Project 83 was no longer as important as Project 10 and Project 11, but it was definitely not something Du Yishan could do in just one sentence. He must at least prove that this undergraduate student has sufficient ability. For such a large project, just a paper in an aviation journal is definitely not enough. That''s why Du Yishan needs to let the 603 Institute publicize the results of active chatter control first. By then, Chang Haonan, as the main contributor to this advanced experience, will have a completely different weight. Okay, Ill get someone to do it right away. ?Zhou Yonghang understood what Du Yishan wanted to do after a little thought, so he decisively agreed to the latter''s request. Originally, he planned to end the call like this, but then he remembered something: By the way, Lao Du, after the Y7-200A was equipped with new wings this time, it has actually been completely transformed compared to the old Y7. So I think it is inappropriate to continue to call it this name, both from a technical perspective and from a future market perspective. Please help us think of a new name. " ?The imitation prototype of the Y-7 aircraft is the An-26 transport aircraft put into use by the Soviet Union in the late 1960s, and both names have a relatively average reputation. Especially in the late 1980s and early 1990s, China Civil Aviation quickly lost interest in continuing to operate the Y-7 and Y-8 series transport aircraft after it came into contact with new aircraft such as the Tu154M, MD80, and Boeing 757-200 that were put into use in the 1980s. The improved version of the Yun 7-100 developed by 603 on the basis of the Yun 7 was quickly eliminated after a short period of service. So Zhou Yonghang actually had the idea of ??changing the name of the new passenger plane and starting over. He just caught up with the opportunity of this major wing modification. As long as he proposed it, he would probably get approval. "give a name to" ?This problem really stumped Du Yishan. Mainly, the naming of aircraft in China in the past was really not fancy. It was just a simple aircraft type-numeric number, such as Yun-8, Qiang-5, J-H-7, etc., so almost no one has ever thought about this issue. Forget it, theres no rush in this matter. Just give me a call when you have an idea. Thats okay. I have time to ask Xiao Chang and the others for their opinions. Young people have more flexible ideas than us. ?After ending the call with Zhou Yonghang, Du Yishan made a direct call to Beijing Hang University. The first thing, of course, is to tell Chang Haonan that his active vibration control system has successfully passed the verification. ?However, Chang Haonan actually knew the news, so he didn''t show too much surprise. Because he happened to be looking at the system panel before, and then found that his scientific research points suddenly increased from 36 to an astonishing 76. Obviously, of the few things he has done so far, only chatter analysis and active chatter control methods may have such a huge impact. ??It''s just that this reaction made Du Yishan look at Chang Haonan a few times - Mature and prudent, neither arrogant nor impatient, he is definitely a person who can accomplish great things. So he quickly turned the topic to the second matter, which was to give the Y-7-200A aircraft a new name. This surprised Chang Haonan. Mainly because I didnt expect that this matter would happen in advance and it would fall on me. After thinking for a moment, Chang Haonan finally decided to use its name on the original timeline. Teacher Du, I think since this is the first passenger aircraft designed by China in accordance with the new international standards, we might as well call it Xinzhou. (End of this chapter) Chapter 49 J-7F [Recommended for the critical period, please read it! 】 Chapter 49 J-7F [Recommended for the critical period, please read it! One morning a week later, inside the wind tunnel testing center of the 611 Institute. ?Lu Yuying sat in the control room, waiting for the newly put into use wind tunnel to complete all the debugging work required for the inlet duct test. At his hand was the hastily produced scale model. After the meeting with Chang Haonan, Lu Yuying flew back to Chengdu almost non-stop with all the information provided by the former, and then quickly arranged for his engineers to work in two shifts 24 hours a day to start the final improvement of the design plan. . Since Chang Haonan has almost completed all the theoretical foundations and simulation tools required for the integrated design method of the air inlet/front fuselage, the entire initial design and proportional model manufacturing process has changed from the repeated obstacles some time ago and has been carried out successfully. Very smooth. In addition, considering that almost all of these technical materials are in electronic form, it is logical that Lu Yuying also tried computer-aided design in the completion process of this new J-7F plan. ?In the first two or three days, due to various reasons such as lack of proficiency in software operation and even some veteran engineers not knowing how to use computers, the progress was not even as good as the traditional method. However, after Lu Yuying withstood the pressure and replaced a group of young people, the efficiency advantages of computers gradually began to be reflected. ? Even many comrades who complained at the beginning expressed their unwillingness to use pencils and drawing tablets again after adapting. Under the buff of such multiple factors, within a week, they even came up with two versions of the design that were slightly different. What is being tested today is a version called the J-7F2. Not long after, an engineer wearing light blue overalls walked in holding a report: Reporting to Mr. Lu, the wind tunnel inlet test system has been calibrated. The repeatability accuracy of the flow coefficient, total pressure recovery coefficient and distortion index are all within the range required by the design specifications. It is fully capable of undertaking formal model tests. Okay, lets get started. ??As Lu Yuying signed his name on the report, the wind engineers began to prepare intensively. Each working time of a supersonic wind tunnel is very short. Depending on the speed of the test, the long time can only reach tens of seconds, and the short time may only be a few milliseconds. If you want to fully test an aerodynamic design, it often takes months or even years. ??However, since the changes to the J-7F are not major, Lu Yuyings focus of testing this time was only the nose and air intake. Coupled with the simulation tools provided by Chang Haonan, the selection of test conditions is also targeted, and the number of tests required is only a fraction of the usual number. ?So early in the morning on the third day after the test started, Lu Yuying, who was sleeping in the office, was called to the wind tunnel center by a phone call. Mr. Lu, the difference between the wind tunnel test results and our previous calculation results is very small. There is no problem with this design! After seeing Lu Yuying, the engineer who had been on duty at the wind tunnel came over excitedly holding the test report: "The design method you brought back from Beijing this time is simply amazing. It can almost match the intake air flow rate below 70%, and this performance is simply inferior to our previous designs. Heaven and earth! ?Lu Yuying took the report and turned directly to the final conclusion. Okay, okay! Although he only said three words, it is not difficult to see from his trembling hands and facial muscles that this senior aircraft designer is also in great excitement, but with a higher concentration. Its a pity that there are currently no conditions for TPS model simulation in China. The accuracy of the simulation results of our ejection model under higher intake air flow conditions is average, so we can only do this. ??The young engineer who just brought the report said with regret. As for the wind tunnel, it doesnt mean that you can immediately use the full capabilities of a piece of hardware. In addition to the wind tunnel itself, the model used for the experiment, the way the test data is obtained and post-processed, and even the way the model is supported will all affect the accuracy of the test. Take the model just mentioned as an example. The TPS model, which has been widely used in developed countries since the late 1980s, except that the internal exhaust cannot simulate high-temperature gas, other conditions are very similar to those of real engines, which can save a lot of test flight hours. . Even for an ejection model with a relatively simple structure, the Siberia Chaplekin Institute of Aeronautical Science and Technology can achieve 100% intake air flow simulation through rich design experience. With the same model, the 611 Institute can only simulate 70%-80%. Its very helpless, but this is the foundation of Chinas aviation industry. Step by step, our countrys foundation is indeed weaker in comparison, but as long as we dont give up the pace of catching up, we will one day be able to make up for all these gaps. When Lu Yuying said this, he almost subconsciously thought of Chang Haonan whom he met at Beijing Hang University. ??If he was still 1% doubtful before, now looking at the report in his hand, he is completely convinced that the other party is the kind of peerless genius who can single-handedly promote technological progress. The next step is to build a prototype and then prepare it for test flight. ?Lu Yuyingzhi said proudly. But Mr. Lu, our funds for this project... are almost running out. The engineer next to him warned carefully. Because this new J-7 variant has not found a launch user, the R&D funds so far have been squeezed out by the 611 Research Institute itself. It is barely enough for paper design and wind tunnel testing, but if you want to actually build one A plane is just a drop in the bucket. It doesnt matter, there will be a seminar this afternoon for the project leaders of our institute and the nearby brother factories. I will solve the money problem. ??Lu Yuying said as he put the report in his briefcase into his briefcase and hurriedly left the wind tunnel test center. In the afternoon of the same day, Lu Yuying directly brought two versions of the J-7F design drawings, wind tunnel model and wind tunnel test results to the venue. The preliminary design of the improved J-7F is currently going well, and the wind tunnel test results show that its flight performance is significantly improved compared to the current J-7E... Last year, that is, in 1995, Israel upgraded a batch of deeply improved models called MiG-21 Lancers for Romania. This proves that many countries still need a low-cost second-generation improved fighter jet "Taking into account the market prospects, we have specially designed two sub-models, namely the J-7F1 with a radar diameter of 520mm, which can be directly upgraded from a MiG-21F or J-7M fighter jet, and the J-7F2 with a radar diameter of 600mm, but must be newly manufactured. During the development of the J-7F, we cooperated with Beijing Hang University and tried to adopt a fully digital design method for the first time, which greatly accelerated the design process. At the same time, we can also accumulate experience for the digital design of other models in the future To sum up, we believe that although the J-7F model has not launched customers, it has good market prospects and technical value, and can be considered for research and development in the form of self-raised funds. After Lu Yuyings introduction, the audience fell into silence for a few seconds. Thanks to the book friend [Danqing Mozi] for the 500 starting coin reward Thank you book friend [Xiao Xiao Zhen Zhen] for the 100 starting coin reward (End of this chapter) Chapter 50 Rob someone Chapter 50 Robbery In the context of market economy, self-funded research and development by state-owned enterprises or scientific research institutes was nothing new in the 1990s. But there is really no precedent for the aviation industry system. After all, the cost of developing a type of aircraft can easily reach hundreds of millions of yuan, and fighter jets are not like cars and home appliances that can enter the civilian market. When exported, international relations must be taken into consideration and cannot be sold casually. It''s very difficult. Hence, it is difficult for factories, which are generally strapped for cash, to decide to risk so much money. ?? But most of the people present today are from technical backgrounds. They know that the improved J-7F that Lu Yuying just came up with does have very little risk and is very marketable. In fact, after the Romanian MiG-21 Lancer mentioned by the latter was replaced with a new Israeli-made radar, the matching radome was designed and manufactured by the China Aviation Composite Materials Special Structure Research Institute. The director of this research institute is sitting in the first row. Even the 611 Research Institute itself has tasted a lot of benefits from the export of the J-7M in recent years, otherwise it would not have started developing the corresponding export model J-7MG immediately after the J-7E entered service. Comrade Lu Yuying, can you estimate how much money and time it will take to complete the model in your drawing? An expert from Liyang Engine Company first broke the silence. In terms of research funding, it is estimated to be between 40-50 million yuan. As for the time, I am confident that the first flight of the prototype can be achieved within a year! ?Lu Yuying replied almost without thinking. As the project leader, he has thought about this problem countless times. ?Originally, before getting help from Chang Haonan, the answer to this question was still 80 million yuan and 2-3 years. But after going to Beijing Hang University, Lu Yuyings confidence was completely different from before. This time, the silence was even longer than before. ?After more than ten seconds, a person sitting in the second row asked in a dry voice. Is it RMB? ?This somewhat nonsensical question made the atmosphere in the venue, which was originally serious and somewhat depressing, suddenly become a lot more relaxed. There were even a few faint bursts of laughter coming from behind. ??However, it is actually reasonable to ask this question. In any case, spending 40-50 million yuan to design a new aircraft, even if it is an improved version of an existing model, does sound a bit exaggerated. Of course its RMB, and thats a relatively loose estimate. I think the design of this model is almost complete, so as a deeply improved model, is there any subsystem that requires the technology developed by our brother factory? ??The person who spoke this time was the director of the Institute of Composite Materials and Special Structures. Apparently, he has already begun to consider the issue of prototype manufacturing. And this issue was considered earlier by Lu Yuying or Chang Haonan. Currently, there are only three places where new technology applications are involved. One is the need to use a C-type sandwich structure composite radome in order to reduce weight. The second is the need to develop small radars corresponding to 520mm and 600mm calibers based on the 1471G radar. The third I hope to replace it with a newer model of integrated cockpit display. Neither is a difficult technology to conquer. In other words, it can actually rely on existing technology. ?Lu Yuyings words seemed to turn on a switch, and the experts and leaders who were originally silent below began to discuss almost simultaneously. Obviously, some people already think this risk is worth taking. The overall design is nearly completed, and there is not much technical risk. As for cost With nearly 10 factories, it is not difficult to raise 40 to 50 million yuan. A few minutes passed, and the discussion in the audience not only did not end, but became more and more intense. The next ten minutes seemed as long as more than ten hours to Lu Yuying on the stage. In the end, the factory leaders who participated in this meeting reached a consensus. Agree to continue to promote the research on the J-7F project in the form of self-raised funds! After the meeting, Lin Yichun, the secretary of the 611 Institute, approached Lu Yuying who wanted to go outside to find two bananas to fill her stomach because she had not had time to have lunch. "Lao Lu, the completion level of your J-7F project was still very low when we held a meeting last month. But the plan you came up with this time, let alone the rapid improvement in completion level, although it is still the same as before. The mandibular air inlet, but I also have a technical background, and I can see that the design ideas are completely different, not to mention the digital design that you have not had much contact with before. " Speaking of this, Lin Yichun looked up and down at Lu Yuying in front of him: You just mentioned that you cooperated with Beijing Airlines in terms of design. Is it possible that you got some treasure from there? Regarding Chang Haonan''s matter, Lu Yuying had no intention of hiding it, but the time on the stage was already tight, so it was impossible to spend too much time introducing the specific situation of Beijing Airlines. Baby...this description is correct. ?Lu Yuying threw the banana peel in her hand into the trash can: He is a student of Academician Du Yishan. The integrated design method of the mandibular air inlet and the cone front body, as well as the program for supersonic fluid dynamics simulation, are all from his handwriting. "one person?" ? Lin Yichun showed an expression that Lu Yuying expected - he himself should have had the same disbelief on his face when he first communicated with Chang Haonan. I know this sounds very unbelievable, but it is indeed the case. This student named Chang Haonan has solved the problem that has troubled us for nearly a year alone. ??Lu Yuying sighed and replied: "To be honest, when I first met him, I felt a sense of frustration." "Well, it seems that he is indeed a genius..." Lin Yichun reluctantly digested this somewhat shocking news: "But how did you get in touch with him? Academician Du Yishan... should be closer to 601 and 603, right? " He submitted a paper on Aviation Progress, and I happened to review it. Lu Yuying raised his head slightly and recalled: We already knew each other when we received the J-7 surveying and mapping data. ?Some things are just such a coincidence. ??If Chang Haonan had not submitted to the Journal of Aeronautics and Astronautics, and if he had not happened to become a reviewer, it would have been three or four months at the earliest before he saw the article officially published in the journal. Lin Yichun gently touched his chin and fell into deep thought. After a long time, he raised his head and asked: Speaking of which, Academician Du should have been relegated to the second line for a few years. He shouldnt have any overall design in progress, right? ?Lu Yuying nodded in confusion: "There should only be some vertical topics related to subsystems." So the genius you are talking about currently does not have a broad enough stage for him to show his abilities, right? ?At this time, Lu Yuying understood the meaning of his own strengths no matter what. This is trying to rob someone. You mean, we can... Since your J-7F project is carried out with our own funds, we need to be much more flexible in terms of personnel arrangements and use of funds. Many things only need to be notified once and do not require approval from the head office. ?Lin Yichun obviously has some plans: "So we can consider giving Academician Du''s research team a big project, one worth 500,000 or even 800,000, and then let them deeply participate in the J-7F project. As long as there is such a relationship, when they graduate later, It wont be difficult to get him to our office. ??Lu Yuying really wants to say that you have a dirty mind when it comes to administration. But he couldn''t say it. Its not because Lin Yichun is his leader. mainly He himself liked this method very much. (End of this chapter) Chapter 51 [Please read it! 】83 Project (Part 1) Chapter 51 [Please read it later! 83 Project (Part 1) On the other side, after agreeing to Du Yishan''s request, Zhou Yonghang of the 603 Research Institute also moved quickly. It took less than ten days to develop "flutter simulation and active control of large aspect ratio straight wings" as an advanced technology The technical achievements were declared. Chang Haonan''s name is impressively ranked first among the completers. There is no need to say much about this publicity effect. So after returning to the capital from Institute 601, Du Yishan almost immediately found Liang Zhuoping, the chairman of China Aviation Industry Corporation. Mr. Du? Liang Zhuoping was stunned for a moment when he saw Du Yishan at the door, and quickly stood up to greet him: I was just looking at the advanced technology results submitted by Institute 603. It can be said that you have made an immortal contribution to our Chinese aviation industry this time. Hey, dont flatter me. Du Yishan waved his hand towards Liang Zhuoping and sat on the sofa next to him: You should have seen the list of completers. As the project manager, I added my name at the end. ?This achievement was all made by students. As an old man of my age, there is no need to compete with young people for the limelight. " ??Who is Liang Zhuoping? After hearing Du Yishan''s answer, he continued without changing: You cant say that, Mr. Du, werent you the ones who trained the talents who completed the project? This is also your credit. While speaking, he took the thermos and tea can from the side and made a cup of tea for Du Yishan who had just sat down. ?After several rounds of conversations just now, Liang Zhuoping has roughly guessed the purpose of Du Yishan''s trip, which is probably related to the other party''s students. This made him feel relieved. With the changes of the times, many factories that used to provide support for the aviation industry have been transformed into private enterprises. But these businesses are still run by the same people as before. In order to get orders from the aviation industry, these companies are trying their best to get orders from the aviation industry. People often come to Liang Zhuoping and ask him if he can designate a certain company as a supplier. Given his status, most of them can''t create much pressure. But if Du Yishan also does this, it will indeed be a bit troublesome. The student with the first name, Chang Haonan, has just joined our research group, so if you insist on saying that I have trained the talents, then I am a bit embarrassed. ?Du Yishan decided not to continue going around in circles with Liang Zhuoping: Zhuoping, how long do you think it took him to finish the subject in Institute 603? "Since Mr. Du asked this, the answer must be very short." ?Liang Zhuoping sat back in his office chair, leaned on the back of the chair and thought for a moment: One month? Its too long. Du Yishan smiled and shook his head. One month is still long? Liang Zhuoping raised his eyebrows and couldnt help but sit up straight. He was also an engineer in the past, but later moved to a management position, so he has some understanding of these technical issues even if he is not proficient in them. According to the materials submitted by 603, the implementation of this achievement in aircraft design is not complicated, but the principle is very sophisticated and involves a large number of basic mathematical theories and computer simulation applications. The workload of the development process must be considerable. So one month is actually an estimate that he thinks is very exaggerated. "Then... half a month?" ??? Du Yishan still shook his head. It cant be a week? ?Liang Zhuoping was already a little overwhelmed. Even he thought this answer was ridiculous. A week, even if you don''t sleep, it''s only 168 hours. Unless the entire development process makes no detours, you can''t even think about it. One day. Du Yishan stretched out a finger: On the first day he joined our research group, he sorted out the theory of nonlinear flutter simulation and active flutter control. ??If this answer came from someone else, Liang Zhuoping''s first reaction would probably be to drive the other person out directly. ?Only a charlatan would dare to speak such nonsense. But this is Du Yishan after all. ?The reason in his mind told Liang Zhuoping that this matter could never be true, but his emotions also told him that as a senior academician, Du Yishan would not be free to come and have fun with him. ?After a few minutes of his brain running rapidly, Liang Zhuoping finally found an answer that was acceptable both rationally and emotionally: Could it be that...he had actually studied this for a long time, but he just gave this result to you as a gift on the first day he joined the team? As a result, Du Yishan directly vetoed: Impossible, Yun 7-200A, oh, it should be called Xinzhou 60 now. Although it is not a confidential project, he was just a junior undergraduate student who was still taking classes before joining the group, and it is impossible to have access to relevant data. Third year undergraduate? With a clang, the lid of the cup in Liang Zhuoping''s hand fell directly onto the table. ?Although the cup held in the other hand did not fall, a lot of water spilled out, soaking the shirt on his body. Since he accepted Chang Haonan as his student, everyone Du Yishan saw almost behaved the same way when they heard the other person''s identity. So he was already used to Liang Zhuoping''s performance. "Yes, this is the first project he has come into contact with. No one has even told him how to complete a project before. In this case, he solved it completely on his own in one day." ?Du Yishan put the tea cup in his hand on the table and looked at Liang Zhuoping, who didn''t even think of wiping off the water stains on his shirt: So I came here today just to tell you about this student. Seeing that the fire was almost done, Du Yishan put forward his idea straightforwardly: "Such a student, both in terms of theoretical foundation and talent in engineering applications, is something I have never seen before. If he is allowed to take graduate classes step by step like others and then do ordinary topics, I think it will not only be beneficial to Its a loss for him, and its also a loss for our Chinese aviation industry. Having said this, how could Liang Zhuoping not know what Du Yishan meant. Do you want to put him on our side and directly participate in the project? Du Yishan nodded: "There is another thing you may not know. A few days ago, Lu Yuying from the 611 Institute went to Beijing Hang University to talk to Chang Haonan and exchanged some issues about the design of the mandibular air inlet. It should be with them Related to the new J-7 model that is being designed. J-7F? Is the 611 project also related to him? Liang Zhuoping only learned about such a project two days ago. However, because the factory raised funds by itself, the head office only had the right to know, so the information submitted was relatively simple and did not mention all the technical details. At this time, the balance in his heart has clearly tilted: Then... what Mr. Du means is to ask Comrade Xiao Chang to help the 611 Research Institute develop this improved J-7 model? Of course not. The J-7F was self-funded by Chengdu. If I wanted him to participate in that project, I wouldnt have come to you. As he spoke, Du Yishan stood up and walked slowly to Liang Zhuoping''s desk. He looked at his former subordinate and now the head of China Aviation Industry: I want him to participate in the 83rd Project! (End of this chapter) Chapter 52 Project 83 (Part 2) Chapter 52 The Eighth-Third Project (Part 2) The 83rd Project? After hearing the name of this project, Liang Zhuopings expression changed slightly and his tone became slightly hesitant: "this" You also know the importance of the August 3rd Project. Im afraid this matter cannot be decided by myself. I didnt ask you to have a talk. ?Du Yishan smiled instead after hearing Liang Zhuoping''s answer. ??If the other party takes over all aspects of this kind of thing, that is what you need to worry about. "You should communicate with Institute 601 about this matter. If necessary, you can conduct an expert review of the results submitted by Institute 603. Just follow the procedures. I''m not trying to put a burden on you. Go in, Xiao Changs ability is clearly reflected in the results, theres no need to be sneaky. "Um" ?Liang Zhuoping held his chin and thought for a while, and finally nodded: "Mr. Du, I can handle this matter, but there are two points that must be determined in advance." Tell me. Du Yishan nodded. He knew that when things got to this point, there was basically no problem. With the successful experience of MA60 as a foundation, no matter what the review is, it will definitely pass easily. "First of all, in recent years, in principle, we have no longer engaged in forced shift operations, so we can only first hand over the project to your research team from the 601 Institute, and then you can select members of the research team to participate in the project as Party B. If he wants to become our official employee, he will have to wait until he graduates." The so-called compulsory transfer means that if the country believes that a certain type of talent is urgently needed for a certain position, it can directly transfer the job without the consent of the person and the original unit, and the transfer will be done together with the establishment. ?However, on the one hand, it is very inhumane to do so. On the other hand, in addition to the talents who are really in urgent need, there are also many people who are passing the job or even have ulterior motives to enter positions with better pay or more critical positions through forced transfer. Hence, by the 1980s, this situation rarely happened anymore. "Of course that''s no problem. Besides, even if you want to ask Xiao Chang to go there, I''m not willing to give it to you." Du Yishan sneered: "As for after he graduates... I don''t think you may be able to invite him." ??Although Chang Haonan''s current ability is already amazing, Du Yishan is very sure that this is by no means the opponent''s limit. ??Once given the opportunity to show off his skills on a big stage like the August 3rd Project, Chang Haonan''s takeoff will probably exceed everyone''s imagination. ?Liang Zhuoping nodded. According to Du Yishan''s previous description, he certainly knew that the other party was a genius, but in his position, the rules were the rules. "The second point is a clich. All projects related to the August 3rd Project are deeply classified projects. The relevant results cannot be published publicly, and all participants cannot go abroad or work in foreign companies before the end of the confidentiality period. "You know, this kind of restriction can have an impact on a student, so everyone involved in the project needs to agree to it and sign a document." Haha, you dont have to worry about this at all. Du Yishan smiled and waved his hand: "Xiao Chang has told me many times that he believes that the contribution of Chinese aviation people is not reflected in the paper. The article he sent to the Journal of Aeronautics and Astronautics is completely fine even if it is submitted to the progress of aerospace science in the United States. , including before joining my research group, I also gave him the opportunity to study abroad at public expense. What do you think he answered me? "What?" Liang Zhuoping raised his eyebrows and asked curiously. He said he didnt think the gap between us and foreign countries was so big that we had to go abroad to learn something that we couldnt learn at home. "Okay! That''s a good answer!" After hearing this, Liang Zhuoping slammed the table with excitement and stood up: "Mr. Du, after hearing what you said, I am already looking forward to meeting Comrade Xiao Chang. One side. After finishing speaking, he realized that he had lost his composure, and quickly sat back on the chair again: However, according to what I just said, Institute 601 will hand over the subject to your research group. In this case, there should not be only one person who can participate in the project, so this matter may not only involve Xiao Chang. "no problem." ?Du Yishan immediately agreed. If you want to participate in key national defense projects, the confidentiality policy is naturally an iron law that must be followed. And he already had a plan in mind. ?After Liu Hongbo and several other teachers went out independently, the size of Du Yishan''s research group was not very large, and there were only two people studying for Ph.D.s. Among them, Fang Zhen will graduate next year, and it may be difficult for him to keep up with Chang Haonan in terms of ability. So if nothing else happens, the second candidate can only be Yao Mengna. In fact, when he first met Chang Haonan through the design description, Du Yishan always felt that his and Yao Mengna''s talent levels were about the same. ? But it didnt take long for the former to easily solve the MA-60s wing flutter problem, proving that it was in another dimension entirely. But no matter what, Yao Mengna is definitely not a height that ordinary people can reach casually. ??And after all, she has more project experience and can help Chang Haonan on issues other than technology. ?After confirming these basic matters, Liang Zhuoping picked up the receiver of the phone on his desk and dialed a number. Hello, Commission of Science, Technology and Industry for National Defense, Im looking for Director Zhou Lin. Hello, Director Zhou, I am Liang Zhuoping. I have a somewhat immature idea regarding the advanced technological achievements reported in this years 603 program. Yes, this result is definitely world-leading, so I think we can consider allowing relevant personnel from Beijing Hang University to go one step further and participate in some key national defense projects? "Well...I have already talked with Academician Du. There is no problem with their willingness and ability. As for the specific project...the 83rd Project should be more suitable." "The specific arrangements still need to go through the process. What I mean is to arrange a small-scale review meeting as soon as possible, let the 601 Institute send people to participate, see what technologies in related fields need to be solved urgently, and then submit them in the form of projects. To Academician Dus research group. Dont worry about confidentiality issues, Academician Du is also an experienced aviation expert, and we will provide relevant training to all personnel directly involved in the project to ensure that there are no mistakes. After hanging up the phone, Liang Zhuoping breathed a sigh of relief. ??The attitude of the Commission of Science, Technology and Industry for National Defense seems to be much more positive than he imagined. ?He raised his head and looked at Du Yishan opposite the desk: Mr. Du, you may have to work overtime with me in the next few days. Thank you to the book friend [Ye Luo Nian Whale Luo Jiu Xiao] for the 2000 starting coin reward Thanks to book friend [Wuhan Qing] for the 100 starting coin reward (End of this chapter) Chapter 53 Overtaking on a straight road [Please read more! 】 Chapter 53: Overtaking on the Straight [Please read it later! At the same time, over there at Beijing Hang University. Since it is already the summer vacation, the master''s students in the research group have returned home one after another. Only Fang Zhen, Yao Mengna and Chang Haonan are still in school. Fang Zhen is preparing to complete the project conclusion report on wing flutter analysis in one go. Yao Mengna plans to stay in school and continue to learn computational fluid dynamics simulation. As for Chang Haonan Actually, it was because he predicted that Du Yishan would find a project for him to join, so he waited at school. So in the past few days, he has continued to study the effect of blade shape on the separation of boundary layer airflow inside the cascade under different conditions. ?If there is any actual gain, it is a letter from the editorial board of Acta Aeronautica Sinica, stating that his paper has been directly accepted and will be officially published in September. He and Wu Yifan paid him the remaining balance of 3,200 yuan. ?It means that the previous fan design should have successfully defeated Fuji Electrics competing products. ?Of course, the impact of this incident was limited after all. It only increased Chang Haonan''s scientific research points by 4 points. Fortunately, whether it was the design of the fan or the wing flutter analysis project for the 603, he relied entirely on himself and did not ask the system to help. So now he has a total of 80 scientific research points in his hand. Even if he faces some more complex problems, it should be enough to solve them if he has an idea. ?But the leisurely fishing life did not last long. ?One morning four days later, Du Yishan suddenly called and asked the members of the research team who were still at the school to prepare for an expert review meeting that afternoon. ?Fang Zhen and Yao Mengna were both confused when they heard the news. After all, they were completely unprepared, and they had never seen such a rushed academic conference. Chang Haonan, who had been mentally prepared, had roughly guessed the true situation of this so-called "review meeting". It is estimated that a project is coming to your door. ??And this posture doesnt look like an ordinary project. Even though he had been mentally prepared in advance, when Chang Haonan saw the situation inside at the door of the conference room, he subconsciously took a deep breath and his eyes widened in shock. ?The room is not large, with only two tables. There are not many people inside, only four including Du Yishan. But he happened to know two of the other three people. They are Liang Zhuoping, chairman of China Aviation Industry Corporation, and Yang Fenghao, deputy director of the 601 Institute and chief designer of the J-8-3. Since the 83 Project was established much earlier than the 941 Project, which clarified the chief engineer''s responsibility system, the chief designer is equivalent to the person in charge of this model. The last one is a woman. Although I have never seen her before, since she can sit with the previous ones and chat and laugh, she must be of a different status. Such a configuration, even if there are only four people, is enough to be called a big scene! At least Chang Haonan had never seen such a battle before his rebirth. The first person invited in was Fang Zhen. ?But he only stayed in there for less than fifteen minutes before he came out. Chang Haonan''s mentality was relatively stable, but Yao Mengna next to him quickly stepped forward: "What did we talk about? The content of the project?" "Well... not exactly." Fang Zhen''s expression was still a bit confused: "In addition to questions related to our group project, I also asked a lot about the textbooks I studied before. Fortunately, I still remember most of it, and there are some things related to computational fluid dynamics, which I am not familiar with, but you two should be good at it. " After a brief chat, Yao Mengna was called in for the second time. She stayed in there longer, probably more than 20 minutes. When Yao Mengna was asked about the situation inside, she obviously hesitated for a moment. Its almost the same as what Senior Brother Fang said just now, but in the end the white-haired expert named Yang asked me if the flutter simulation project we did for the 603 can be used on combat aircraft. ??Yang Fenghao''s name was not very famous in this era, so it was normal for Yao Mengna not to know what the other person did. What did you say? "My junior brother told me this before. When we studied high-aspect-ratio straight wings, we regarded the research object as a beam wing and then used the dipole grid method. Generally, combat aircraft are delta wings or rear-mounted wings. Sweeping wings cannot be applied mechanically. " As she spoke, Yao Mengna cast a grateful glance at Chang Haonan. By now, anyone could tell that this gesture was unusual. It was said that it was a review meeting, but it was actually more like an interview, so answering one more question must be beneficial. Finally it was Chang Haonan''s turn to go in. Actually, putting him as an undergraduate at the end actually explains something. ?After Chang Haonan sat down behind the table near the door, although the movements of the four people opposite him did not change much, he could clearly feel that there were some subtle changes in the atmosphere of the scene. After a brief opening session, the exchange between the two parties quickly got to the point. The previous questions were all raised by Liang Zhuoping, and they are no different from Yao Mengna and Fang Zhen. But when Chang Haonan said that he was recently studying the topic of using blade sweep design to control the vortex structure within the turbine machinery cascade, the eyes of the other two people next to him almost lit up at the same time. ?Especially the woman who Chang Haonan didn''t recognize at first almost immediately raised her own questions. According to the introduction at the beginning, she is the director of the System Engineering Department III of the Commission of Science, Technology and Industry for National Defense, with a surname of Zhou. You also have research on compressor design? "Yes." Chang Haonan nodded: "Although there are indeed some differences between the overall design of the aircraft and the aerodynamic design, the theoretical principles of fluid mechanics and the engineering methods of computational simulation are universal." Actually, its not just compressor design, but I think the same applies to related materials and manufacturing processes. As the saying goes, nothing can change without departing from its roots. If we can master the basic theories and methodologies, we can conduct cross-border research in a broader scope. Totally possible." "Take compressor blade manufacturing as an example. One of the major difficulties is that during CNC milling processing, irrecoverable deformation will occur due to clamping force, cutting force, internal stress and other reasons, which will affect product quality. This problem is generally considered to be only Rely on processing experience and material upgrades to solve the problem. But in fact, it is completely possible to use the mathematical functional relationship between flow stress and deformation parameters such as strain, strain rate, and temperature to establish a constitutive model of the material, so as to numerically calculate the deformation of the blade during the processing, thereby achieving Higher processing accuracy and more stable product quality. Another example is the turbine blades of aero-engines. Due to their long-term operation under strong thermal shock and complex cyclic thermal stress conditions, they have higher requirements than compressor blades and need to be manufactured by investment casting. However, through traditional The experience + trial and error method of optimizing process parameters is very inefficient. As a late-developing country with insufficient experience and funds, it is very difficult for us to rely on this method to surpass others. " But the investment casting process can essentially be summarized as two processes: mold filling and solidification. The former is a flow process we are familiar with, while the latter is a heat transfer and phase change process, plus the process similar to the milling process. After comprehensive consideration of stress and strain issues, the entire process can still be numerically calculated, thereby achieving precise calculation and control of the casting process and greatly improving efficiency. ??When Chang Haonan said this, the eyes of the four people opposite him, including Du Yishan, had changed. ?This juniors ambition far exceeds everyones imagination: It is good both in design and manufacturing. ?Overpass the experience accumulation and trial and error part that consumes the most time and money, and directly explain everything using mathematics and physics. This way, the gap with developed countries can be narrowed in all aspects with limited resources. Even the corners Wrong. Overtaking on a straight road! (End of this chapter) Chapter 54 The organization has decided Chapter 54 The organization has decided ??If Chang Haonan just expressed this idea, it could only be regarded as "dare to think" at best. But judging from what he just said about the manufacturing of compressor blades and turbine blades, he is definitely not talking nonsense. At least it can be proven that he has conducted quite in-depth research on these fields that seem to have nothing to do with aerodynamics. Being able to achieve this step can actually be said to be standing at the top of the pyramid. ? And what he said just now, "As long as you master the basic theory and methodology, you can conduct broader cross-border research" gave the four senior experts opposite a sense of enlightenment. And Director Zhou of the Commission of Science, Technology and Industry for National Defense instantly felt that he had found a treasure. As the department in charge of the scientific research and production of aviation and shipbuilding military products, and the department that plans, coordinates and connects national defense scientific research, production and construction, the Third Department of Systems Engineering is in great need of such an all-round talent who can guide in the general direction. She even had the urge to ask Beijing Hang University to assign him directly to the Commission of Science, Technology and Industry for National Defense after he graduated. ?But her reason told her that now was not the time. No matter how beautiful the words are, in the field of engineering technology, it is impossible to convince the public by relying on paper talk. If nothing can be made, everything is in vain. So the young genius in front of me still needs to go through the experience of specific model projects. ?Thinking of this, Director Zhou looked at Yang Fenghata next to him. As the model chief engineer, the latters considerations are obviously more specific and practical. ??Although he also saw Chang Haonan''s talent, he continued to ask his own questions. Comrade Xiao Chang, in the idea you just mentioned, it should rely heavily on numerical calculation methods, but for some problems such as complex flow fields, have you considered the amount of calculations required in the numerical simulation process? ?This question may sound a bit awkward, but it is actually very practical. It is now June 1996. Half a year later, in December 1996, Intel will build ASCIRed, the highest-performing supercomputer at the time, with a calculation speed of 1.338 trillion times per second. As for China, the fastest supercomputer in 1996 was the Dawn 1000A, with a calculation speed of only 4 billion times per second. For comparison, before Chang Haonan was reborn, the A15 processor on the iPhone 14 had a calculation speed of 15.8 trillion times per second. One mobile phone is equivalent to 12 of the worlds best supercomputers. So the amount of calculation is indeed an issue that must be considered. But this obviously could not faze Chang Haonan, who had been prepared for this. Of course I have considered it. ?Chang Haonan stood up directly this time, walked to a blackboard on the side wall, and picked up a piece of chalk. Since you mentioned the problem of numerical simulation of complex flow fields, lets take the oscillatory motion of a delta wing under a dynamic flow field with a large angle of attack as an example. ?Yang Fenghata raised his eyebrows and subconsciously sat up straight. ?Chang Haonan did not choose this issue randomly as an example. This is a very valuable question for the ongoing J8-3 project. And the opposite person, Yang Fenghata himself, is very proficient in aerodynamic analysis at large angles of attack. So he must be very interested in it. Of course, the identity of the chief designer of the J-8-3 has not been publicly publicized at this time. In the opening stage, he was only introduced as an expert from the 601 Institute. Therefore, Chang Haonan ostensibly chose it just because of the other party''s question. That''s just the problem. "If the CFD method is used to directly calculate the dynamic flow field at large angles of attack, the computing resources and computing cycles required will be very large. Therefore, a simpler model that can directly predict the important characteristics of the system is needed instead, that is, the model reduces the Order...???So I designed a signal-based reduced-order model, the Volterra series model, with reference to the nonlinear identification and modeling process of electronic circuits. The basic principle is: for the time domain discrete Volterra Series, the output y(n) of any input u(n) can be expressed in the following way..." Chang Haonan said and wrote a long multiple convolution on the blackboard. "It can be seen that if all the Volterra cores of the system are obtained, then the response to any input of the system can be obtained. Considering that the length of the series and the model memory length increase rapidly with the increase of the core order, it is not conducive to Volterra To identify the Volterra core, we truncate the part above the second order, and then perform wavelet compression on the remaining Volterra core..." After he erased the blackboard and filled it up again for the sixth time, he finally finished explaining the reduced-order method that could greatly simplify the calculation process. Liang Zhuoping and Director Zhou, who had been out of technical positions for a long time, looked more confused. But the eyes of Du Yishan and Yang Fenghao were almost full of... fanaticism. The flow field calculation of a delta-wing aircraft is inherently much more complex than that of a straight wing. ? Let alone numerical calculations, even analysis is quite difficult. So it mainly depends on experience. ??And if you want to gain experience, you have to spend money on a lot of wind tunnel testing and test flights. It will take a lot of time. ??If the reduced-order model that Chang Haonan just wrote on the blackboard can work, it will undoubtedly save a lot of trial and error and bumps into obstacles. This is simply tailor-made for the J-8-3. And it is a completely new engineering model. Even, this time it can be said to be engineering theory. Because this idea of ??reducing the order of the model is not limited to Volterra series, it can be extended to more fields. Of course, this still needs to be verified. ?However, with the previous project of 603, everyone is still optimistic about the verification results. In other words, within one month, Chang Haonan produced groundbreaking results twice. This undoubtedly shows that what he mentioned before about mastering basic theories and methodologies is not groundless. It''s just that some theories may need to be put forward by himself. ?Yang Fenghata had an idea at this time: I will decide this person! He turned his head and consulted the other three people with his eyes. All received a positive answer. Comrade Xiao Chang, there is now a key national defense project assigned to Academician Dus research group. Are you interested in participating in this project? ??Although judging from Du Yishan''s description and the recent contact with Chang Haonan, Yang Fenghao is basically 100% sure that the latter will agree, but the process will eventually go ahead. Before you make a decision, we need to explain that if you choose to participate in this project, there will be certain restrictions on subsequent work, going abroad, and publication of results... Chang Haonan naturally knows these contents very well. After all, his actual working time in China Aviation Industry is not shorter than that of Yang Fenghao. So after the other party finished speaking, he agreed almost without thinking, and then signed an informed document. So, Xiao Chang. After Chang Haonan signed his name, Du Yishan left his seat and walked up to him: The organization has decided that you and Xiao Yao will jointly represent our research group to participate in the research and development of the 83rd Project! (End of this chapter) Chapter 55 Please also ask Gaoming [for further reading! 】 Chapter 55 Please give me some advice [Please follow up! For this result, Chang Haonan had basically expected it when he first saw Yang Fenghao. This has far exceeded his expectations a month ago. Compared to the MA-60 project, the difficulty and importance of the 83 project are undoubtedly much higher. Correspondingly, the influence and weight are much greater. This also means that he is one step closer to the goal he set at the beginning of his rebirthto rely on the system to drive the efficiency of the entire Chinese scientific research system. ??As for Yao Mengna, it is reasonable to follow her. She has strong abilities in three-dimensional digital modeling and control law design. She is the most in-demand talent in the entire aviation industry at the moment. After all, in the original timeline, Chinas first aircraft model that fully realized digital design, drawings and assembly was the JH-7A, and the project would not be officially approved until 1999, three years later. ?Liang Zhuoping took out a document from the briefcase next to him. Comrade Xiao Chang, this is a document about the confidentiality of the project. If you have no objections after reading it, just sign on the last page. Chang Haonan took a brief look at it and found that it was not much different from the one he signed when he joined the company after graduating from his doctorate in his previous life, that is, not to say anything that should not be said, not to ask about secrets that should not be asked, and not to involve secrets in private letters. No need to use ordinary postal mail to convey secrets, etc. It''s just that in 1996, only a few cities in the country, such as Beijing, Shanghai, and Yangcheng, were connected to the Internet. There were even fewer people with the conditions to access the Internet, so the network security issue that became a top priority had not yet been solved. be included in it. In addition, there are restrictions on the publication of some results. If there is confidential content, it needs to be declassified. If the confidentiality is too deep to be declassified, it can be written into a national defense report. ??These are all normal contents. Chang Haonan turned to the last page, decisively signed his name, and then handed the signed document back to Liang Zhuoping. So, Comrade Chang Haonan, lets get to know each other again. I am the chief designer of the 83rd Project. On behalf of the entire project team, I welcome you to join me. Yang Fenghao was obviously in a good mood. He stood up and shook hands with Chang Haonan: "At this stage, the testing work of Project 83 is going quite smoothly. There are two main parts that need your help. One is to digitize our previous paper design drawings to facilitate subsequent improvements and finalize the design. After that, we will, of course, provide manpower to work with you in connection with the manufacturing unit. "The second is to use your knowledge in computational fluid dynamics to provide more accurate guidance for the next test flight work and speed up the test flight efficiency. We now have a large number of flight hours spent exploring test flight conditions. In fact, It has caused a certain amount of waste. As for the more specific project details, you have to wait until you arrive in Shengjing to find out. Thank you, Commander Yang, for your trust. I will do my best. ?Although it was the first time for Chang Haonan to experience such a scene, he had been mentally prepared for it, so he still remained unfazed. At this time, Du Yishan came forward again, patted his shoulder and encouraged: Xiao Chang, you have a great future. Work hard at Institute 601. Project 83 is a very promising project and there is plenty of room for you to show off your skills. Hearing such a sentence, Chang Haonan felt mixed emotions in his heart and could only smile and nod in return. In fact, in 1996, as Yang Fenghao said just now, the research and development progress of Project 83 was relatively optimistic. The 01 and 03 prototypes had already launched intensive test flights in Yanliang, and the 04 that had just rolled off the assembly line was verified. The aircraft is also undergoing factory test flights, and everything seems to be going very smoothly. Therefore, in Du Yishan''s view, as long as this project proceeds step by step, there will be no major troubles. Even if the WP14 engine that is the most worrying is not progressing smoothly, it can be temporarily replaced by the WP13F engine. Similar situations have not happened in the past. Didn''t happen. But as a reborn person, Chang Haonan certainly knew that in the original timeline, Project 83 ended with regrets and was turned into a technical reserve. The supporting WP14 engine also lost its installed model. Although the research and development was not directly terminated, the attention it received plummeted and it failed to complete its mission of replacing the WP13 series. The reasons for this are of course very complex, including both the impact of insufficient technology and non-technical factors. For example, in January 1997, when the No. 04 full-state prototype just mentioned was transferred to Yanliang, the end of the landing runway was being renovated, so a trench was dug. The tower did not know about this, and the pilot was Visibility was poor and the aircraft could not be detected visually, which eventually led to the aircraft''s landing gear breaking. After overshooting the runway, it hit a tree and was completely damaged. The prototype No. 05 that was then rushed to be produced caught fire and crashed in the air due to engine failure in 1999. Two prototypes were lost within two years. This, combined with the slow progress of test flights caused by the damage of No. 04, eventually led to the discontinuation of Project 83. . Of course, this all happened in the last life. This time, Chang Haonan is confident that these regrets will never happen again. Comrade Xiao Chang, Professor Du is right. This time it was Director Zhou who spoke: The August 3rd Project should be just the beginning for you. We look forward to you playing a greater role in the progress of our Chinese defense industry. ?That afternoon, Lu Yuying, who was sitting at her desk in Chengdu 611 School, picked up the receiver in high spirits and dialed the number in the office of Professor Du Yishan of Beijing Hang University. Just yesterday, after discussions with 9 units including the 611 Institute, Northwest Optical Instrument Factory, and Liyang Engine Company, they were unanimously optimistic about the export prospects of the two J-7F models. At the same time, they can also share the Project 10 project to a certain extent. risk, so we decided to jointly raise 65 million yuan to support the research and development of new models. ?This is a full 30% more than the 50 million he said at the previous meeting. ?In this era when funding for national defense scientific research is not abundant, having money means having confidence. ?So after discussing with secretary Lin Yichun, the two finally decided to allocate 1 million yuan to provide Du Yishan''s research team with a project on the overall design of a mandibular inlet aircraft. In fact, the meaning is obviously to ask the other party to send Chang Haonan over. Hello, who is this? ??The call was quickly connected, and Du Yishan''s voice came over there. Lao Du, its me, Lu Yuying, the chief model engineer of the 611 Institute. At this time, there were only a few model chief engineers in China, so the two of them naturally knew each other. After a few simple greetings, Lu Yuying went directly to the topic. He said that the 611 Institute currently has a self-funded project. If he wants to give the other party''s research group an overall design topic, he needs to ask Chang Haonan to come to the 611 Institute to participate in the project. The total funding is 1 million yuan. ??When Lu Yuying finished saying the number 1 million yuan, he leaned directly on his office chair, thinking about Du Yishan''s reaction after hearing this number. Uh, Lao Lu, Im really sorry, we cant take on this project now, youd better hire someone else. (End of this chapter) Chapter 56 Head to Shengjing! Chapter 56 Heading to Shengjing! Lu Yuying was confused. ??He just imagined a lot of Du Yishan''s reactions after hearing about the project funding, but this one was not included. "Lao Du, this... this is a big project with a funding of 1 million yuan. Are you sure you just want to give it up so casually?" ?For a moment, he even felt that he had just said the wrong amount. "It''s not that I don''t want it anymore, but you asked Chang Haonan to participate. This is really impossible. Our research team has also taken on another project, and he will go to Shengjing soon." Du Yishan said in a troubled tone said: Otherwise, there is a doctor in our group, and he and I will go to your place to help? No, no need Lu Yuying was filled with bitterness when she heard this sentence, and she didnt even know how she said goodbye to Du Yishan and hung up the phone. In short, he only had six words in his mind. Obviously it was me first ??Although Lin Yichun, who had been sitting next to him, was the first person to propose ways to bring Chang Haonan over, he was more open-minded than Lu Yuying at this time. After watching the latter hang up the phone, he stood up and patted the other party on the shoulder: "It doesn''t matter. If we don''t have a chance this time, there will be a next time. Besides, as long as your thinking doesn''t slip, there are always more solutions than difficulties. Even if he is at Institute 601, if we encounter any problems, we can still go to him for consultation. , China Aviation Industry is a family after all. "Sigh..." Lu Yuying still felt a little pity: "If I can get his assistance, I am even confident that the prototype will be launched in about half a year." "this" ?Lin Yichun hesitated for a moment, and then said something that was not sure whether it was comforting or not: Actually, you dont have to feel too sorry. After all, even if we really bring Chang Haonan here, originally...we originally planned for him to mainly go to Project No. 10 to help. ??? Lu Yuying suddenly felt that the world was full of malice towards him. The other side. ??Yang Fenghao rushed back to Shengjing after the meeting, while Chang Haonan and Yao Mengna still had to stay at the school to go through some procedures, so they needed to stay at Beijing Hang University for one more day. On the morning of the third day, Du Yishan personally drove the two people to Nanyuan Airport in Beijing. Although the airport in the 1990s already had a security check process, the whole process was relatively sloppy, so it didnt take long for the two of them to take their luggage and walk into the cabin of a Tu154M passenger plane under the guidance of the staff. In this year and age, apart from the more urgent business trips like theirs, you have to be quite wealthy to be able to afford a plane ride. In addition, the route from Beijing to Shengjing is not a popular route, so until the plane started taxiing, None of the cabins were full. ?After a short taxiing, the Tu-154M flew into the sky at an angle that was very characteristic of a fighting nation. ?Yao Mengna, who was sitting next to Chang Haonan, was a little restless, and her breathing was much larger than usual. She didn''t know whether it was because of excitement or nervousness. Junior brother, have you ever flown on a plane before? ?Perhaps to divert her attention, Yao Mengna turned to Chang Haonan next to her and asked. HmmIve never sat in this kind of car before. Chang Haonan gave a somewhat ambiguous answer. Before his rebirth, flying was of course a very common thing for him, but riding the Tu-154M was indeed a quite novel experience. Although I have studied aircraft design for 7 years, this is my first time to fly. Yao Mengna moved closer to the porthole and looked at the buildings and roads below that were getting smaller as the plane climbed: How long will it take us to get from Beijing to Shengjing? About an hour and a half The routes Chang Haonan has taken the most are from Beijing to Shengjing and from Beijing to Rongcheng. The flight speed of airplanes in twenty years will not be much faster than now, so he answered almost without thinking. . By this time, the plane had climbed to the cruising altitude. Due to the clouds, Yao Mengna could no longer see the situation on the ground. I thought we were going to take a train yesterday, so I searched for it and found that the train takes almost 10 hours to get to Shengjing. Teacher Du and Mr. Yang are not worried. Chang Haonan shook his head: There are so many people on the train and at the train station, and any accident may happen. After all, planes are safer and faster. Trains in the 1990s were simply synonymous with chaos. If you had to take one, you had to make complete preparations in advance, such as sewing money on the inside of your underwear, or bringing a quilt with you and sewing a bunch of small pockets inside the quilt. , and then put valuables in it, etc. In short, it can be easily eaten and wiped clean by others if you are not careful. ?Given the importance of Chang Haonan and Yao Mengna, it is naturally impossible to let them take this risk. "Yes...faster." Yao Mengna stared ahead blankly and repeated in a somewhat sad tone. After a long time, she looked at Chang Haonan next to her again: "I don''t know when we in China will be able to build something like this." This is how a passenger plane comes. Tu 154M is a 160-180-seat mainline passenger aircraft. Shortly before Chang Haonans rebirth, in 2023, Chinas first self-produced mainline passenger aircraft of the same class, the C919, was officially put into commercial operation. Of course, in 1980, the Y-10, which seemed to be in the same class as the Boeing 707, made its first flight. But it is not enough to just build a plane that can fly into the sky. In the aviation field, the design and manufacturing difficulty of civil aviation aircraft is actually higher than that of military aircraft. Since passenger aircraft, especially mainline airliners, may spend half of their time in the sky every day, they need to have higher reliability, longer airframe life, higher structural strength, better fuel economy, and more flight hours per flight hour. Low average maintenance hours In short, large civil aviation aircraft are indeed the master of aviation industry technology. Even if Chang Haonan has the experience and knowledge of future generations and has systematic help, there is really no way to give an accurate timetable. Just because a person can be full by eating five loaves of bread does not mean that he can only eat the fifth loaf of bread. Take it step by step. ?Chang Haonan looked at Yao Mengna next to him: Isnt this the goal we should strive for together? Yao Mengna finally showed a smile: "Right." ?After the plane landed at Shengjing Taoxian Airport, a 212 jeep with a white license plate took the two directly to No. 601 House. ?Yang Fenghao, who came back early, came to the door to greet him personally. We have already arranged the accommodation for the two comrades. It is a single dormitory with a shared bathroom on the first floor and no kitchen. At noon, you should first familiarize yourself with the location of the canteen, dormitory area and office area. You can take a rest in the afternoon. There happens to be a project progress seminar within our office tomorrow evening. If you are interested, you can go and attend. Listening to Yang Fenghao''s introduction along the way, Chang Haonan only had one thought in his mind: J8-3, here I come! (End of this chapter) Chapter 57 Change of thinking Chapter 57 Change of thinking Since both Chang Haonan and Yao Mengna were in the best physical condition in their early twenties, and the flight only took about an hour and a half in total, they did not feel tired from the journey. While on the road just now, the two of them had already agreed that they should start familiarizing themselves with the work as soon as possible after arriving at the 601 Institute. ?Of course, it was Yao Mengnas idea to become familiar with her work. For Chang Haonan, this kind of work of being a screw for a large project is simply not familiar, so what he wanted to do was to demonstrate the value of their research group as quickly as possible. Mr. Yang, we rested almost all the way here on the plane, so our idea is that its best to start working this afternoon. Yao Mengna decisively rejected Yang Fenghaos suggestion to let them rest for a day. Wellmy plan is to let you know the specific project situation through tomorrows seminar. There is a big difference between doing projects in school and doing projects here. You may not have any idea about the overall design of aircraft before. After Yang Fenghao finished speaking, he touched his chin and thought for a moment: Well, since you are so motivated, I will take you to the computer room after lunch to get to know the other members of the digital design team. The computer room of Institute 601 is in a relatively remote building. There are four big words "Computing Center" hanging on the outer wall of the building. This is a title that will not be outdated even after more than 20 years. ?According to Yang Fenghaos introduction, this was originally prepared specifically for digital design, which shows that the institute still attaches great importance to it, but so far, the progress of the digital design team is not very optimistic. The two of them followed Yang Fenghata and walked in. As the chief designer of the Eighth San Project, Yang Fenghata''s appearance naturally caused a commotion. A few minutes later, an engineer of medium height, who looked to be in his 30s and wearing glasses, jogged all the way to the three of them. before. "Mr. Yang, why... why are you here suddenly?" "Let''s go to forestry, don''t be nervous. I''m not here to check your progress this time." Yang Fenghao said, taking a step to the side, stepping aside half of his body and introducing to Chang Haonan and Yao Mengna: This is the leader of our digital design team at Institute 601, Engineer Lin Shikuan. ?At this time, Lin Shikuan noticed that there were two people following Yang Fenghao. These two are experts in digital design and computational fluid dynamics that I invited from Beijing Hang University this time, Dr. Yao Mengna and Dr. Chang Haonan. Chang Haonan is still an undergraduate at the moment, but his decision to study directly for a Ph.D. is basically confirmed, so its not a big problem. You dont want to be considered experts, just call us by our names. Chinas digitalization of aircraft design is still in its infancy. We are all students, lets communicate and learn from each other. ?Yao Mengna said this very well. ? Judging from Lin Shikuans performance when he met Yang Fenghao just now, due to the fact that the progress has not met expectations for a long time, the morale of the entire digital design team may have some problems, and there may even be some fear of difficulties. Especially in front of the model chief engineer, he was completely unable to hold his head up. Yao Mengna''s answer took everyone''s feelings into consideration and did not further stimulate Lin Shikuan''s already sensitive and fragile psychology. After three people shook hands, they were considered to know each other. Thank you, Mr. Yang, for still thinking about our digital team. I am very honored to have two experts from Beijing Airlines to help. ?Lin Shikuan was indeed much more relaxed than when they first met. Then forest workers, please familiarize them with the general situation of the project first. If you have any questions or need, please contact me. ?The Eighth-Three Project is currently in the research stage. Yang Fenghao can be said to have many things to do every day. Naturally, it is impossible to stay here forever, so after arranging two people, he turned around and left the computing center. Dr. Yao, Dr. Chang, please come with me. In the next more than two hours, Lin Shikuan first took the two of them to visit the computer room equipment, and then began to introduce their work during this period. In fact, this digital design group was established in early 1995, less than two years ago. In other words, when their group was established, the 01 demonstrator aircraft of the J-8-3 had already made their first flight. ?Hence, Lin Shikuans and his teams tasks in the first phase had little to do with design. They mainly focused on converting past paper design drawings into more intuitive geometric modeling, which was a lot of work. However, this task, which seemed very simple at the beginning, they have not completed for nearly a year and a half, let alone using digital technology to improve the aircraft later. ?So Lin Shikuans meaning is also very simple. He hopes to at least help them find out which step made the mistake. Chang Haonan happens to know the answer to this matter, because in the original timeline, after he graduated, he happened to catch up with the stage when the entire Chinese aviation industry was fully transforming from traditional design methods to digital design. These problems Lin Shikuan encountered , he also encountered it. Simply put, digital design is far more than just replacing a drawing board with a computer, but a complete set of design ideas. ?But just when he was organizing his words and preparing to speak, Yao Mengna next to him got ahead of him. Actually, I know how to solve this problem. ?Chang Haonan subconsciously turned his head and looked at the other party. When I was a PhD student, I tried to digitally design some simple aircraft, and I encountered the same problem as you. "this" Several engineers, including Lin Shikuan, looked at each other with half surprise and half doubt in their eyes. After all, the problem that had troubled them for a year and a half and made the digital design team unable to raise their heads in front of the aunt in the 601 canteen, others immediately said they could solve it after hearing it. It is indeed a bit exaggerated. In fact, let alone Lin Shikuan and others, even Chang Haonan felt a little surprised. He did not expect Yao Mengna to have experience in this area. Our countrys aircraft shape design has always followed the Soviet path. After the aerodynamic configuration design, the entire aircraft shape is mathematically modeled, and the theoretical shape is expressed entirely using mathematical formulas, that is, in a non-parametric way. ?Yao Mengna walked to the blackboard next to her in three steps and two steps at a time, picked up the chalk and wrote a few formulas on it. European and American aircraft appearance design focuses on geometric representation and uses parametric polynomials to express the overall aircraft shape curve, She drew another section of Bezier curve, and then wrote the quadratic formula of Bezier curve. Originally, these two methods actually have their own advantages and disadvantages. If the designers mathematical skills are good enough, the mathematical formula method will be more accurate in describing the shape of the aircraft. "But the design software you are using now is CATIA bought from France. If you apply Soviet design habits to European design software, the final result will naturally be very awkward, and more importantly, there is no way to modify it through parameter adjustment. It completely fails to reflect the advantages of digital design. So you have to change your thinking habits and restore the aircraft design through surface curve theory. Only in this way can you get better results, which will be helpful for subsequent design improvements and even assembly and manufacturing processes. After saying this, Yao Mengna threw the remaining half of chalk into the chalk box very gracefully, and then turned back. What came into view were several people with almost identical expressions. ?(|||) (End of this chapter) Chapter 58 Project Progress Chapter 58 Project Progress Lin Shikuan and others also graduated from prestigious schools, and their abilities are naturally quite good. Therefore, after Yao Mengna pointed out their problems, they almost immediately understood what they should do next, and then immediately started working on a new round of work. . By the way, please give me a copy of your previous aerodynamic modeling. Chang Haonan looked at the few people who were back at their work stations and said quickly, fearing that they would delete the previous design files if they were slower. Before? But didnt you just say that ?Lin Shikuan turned back to look at Chang Haonan in confusion. It is really troublesome to modify the design, but I am going to do a fluid dynamics analysis on the original design, so as long as the accuracy of your model is high enough, it will be fine. After hearing Chang Haonan''s explanation, Lin Shikuan showed a relieved smile on his face. ?That was Party Bs expression when he found out that the scrapped project he had done before could still be used as waste. Thats definitely no problem, we can still guarantee this. Also, Team Leader Lin, do you have any modeling of the aerodynamic shape of the A-bomb? ??The Aspid air-to-air missile introduced by China from Italy is generally referred to as the A bomb internally. It is currently one of the only two missiles of the Chinese Air Force that can attack beyond visual range. "Well... we are not doing the surveying and imitation work of the A bomb, so the three-dimensional modeling has not been done yet." Lin Shikuan thought for a moment and then said: "But there are two-dimensional parts that were retained when converting the paper drawings to digital. design diagram." Thats fine, anyway, the aerodynamic modeling of the A bomb is very simple, I did it myself. A few minutes later, Chang Haonan sat in front of a computer by the window with two floppy disks in his hand. The digital design team did not receive much attention due to the delay in producing results. The entire team, including Lin Shikuan himself, only had five people, so there were many empty seats in the computer room. ?Yao Mengna also took the opportunity to sit in another seat closest to him. Are you ready to start aerodynamic analysis of the whole machine? "The whole aircraft is not in a hurry. That will take a while. I''ll do the wing part first." Chang Haonan said that he had already opened CATIA and started to process the model before analysis. As he worked quickly with his hands, the three missile pylons that had been modeled before were gradually "installed" under the left wing. The aerodynamic shapes of most aircraft are close to left-right symmetry, and the performance of computers these days is really bad. Therefore, half of the model can be taken for analysis, and the other side is left alone. I think... you should use the A bomb as an example to demonstrate to them. ?Yao Mengna looked at Chang Haonan''s movements and couldn''t help but recall the first time the two met. The other party was also using CATIA to model a MiG-21. But she didnt know why, but she never saw Chang Haonan show that kind of inhuman operating speed again. Hmm thats okay too. As soon as he finished speaking, several people from the digital design team quickly moved chairs and sat around Chang Haonan. Even Yao Mengna, who made the suggestion in the first place, barely reacted. ?In fact, someone just noticed Chang Haonan''s extraordinary work efficiency, but they were worried that the latter was not an employee of the 601 Institute. It would be impolite to come over to watch, and it seemed to be stealing from his teacher. ?Now that I have the consent of the rightful owner, there is no need to worry. "Before we parameterize discrete data, we must first consider the fitting problem of discrete data. The fitting problem can be divided into two methods: interpolation and approximation..." Because Aspad is an air-to-air missile designed by Italians, its surface is originally expressed in the form of parametric polynomials. The modeling process is not complicated, so Chang Haonan focused on how to use parametric polynomials to construct curves or surfaces. In fact, some excellent data parameterization methods are themselves secrets kept secret by major European and American aircraft manufacturers. Chang Haonan can only introduce some principles and techniques based on his own understanding and the experience of later generations. "Since the expression of surface patches in software generally adopts the form of four-sided patches, the expression of triangular surface surfaces will cause the edges to degenerate into points. This form of triangular surface patches is a fatal problem in digital appearance design. trap, which leads to a situation where the normal vector is zero near the degenerate point." This is generally not a problem in the appearance design stage. The crisis breaks out in the structural design stage because of the emergence of zero normal vectors. Structural parts cannot be operated or even configured, causing the entire related design process to be completely overturned. ??When Chang Haonan talked about how to deal with the large number of triangular surfaces in aircraft design, he heard a loud gasping sound like surround sound coming from behind him. ??The feeling is probably similar to when a programmer faces a mountain of code that he wrote ten years ago without line breaks or comments, but must debug it. Obviously, the mistake just mentioned hit the target directly, and Im afraid thats how they dealt with this problem. Therefore, after he said that the solution was to "spread the vertices of the triangle into two points, and deform the triangular surface into a quadrangular surface within the allowable tolerance range," four of the six people immediately returned to their seats. The modifications began, leaving only Lin Shikuan and one other person to stay in place. In fact, when Chang Haonan later participated in the appearance design of the JH-7A, he was fooled by the same mistake, and it took several months to completely rework it. Thats why he still remembers it. Fortunately, Lin Shikuan and his team''s previous progress was not fast, and the amount of tasks that needed to be changed was acceptable. By the way, Dr. Chang, you suddenly want to model the A-bomb, isnt it just to give us a few lectures? ?Seeing that Chang Haonan''s modeling work was finished and the aerodynamic models of the two missiles were hung on the hangers under the wings, Lin Shikuan scratched his head and asked. Of course not. In fact, I am planning to use the CFD/CSD coupling method to analyze the aileron control performance, wing load distribution and structural elastic deformation of the aircraft when it is loaded with bombs. With ammunition? Lin Shikuan was stunned for a moment: But Project 83 has not yet started test flights with bombs. Digital design and aerodynamic simulation are originally intended to guide the design and test flight work, and of course they must be completed before the test flight. ?Yao Mengna, who had been silent just now, put one hand on her forehead with a helpless expression on her face. "this" ? Lin Shikuan certainly understands this truth, but the actual situation is that their digital design team has been catching up with the project progress since its establishment, and over time, it has almost formed a thinking inertia. "Not only that, according to my previous research on the aerodynamic characteristics of the delta wing, when this aircraft flies with bombs at supersonic speeds, the aerodynamic control surface, especially the aileron control efficiency, will be drastically reduced due to the interference of the wing surface airflow, so I Now we need to use simulation to verify it and see how it can be improved. "ah?" ?Lin Shikuan''s expression was almost dumbfounded. (ѡ) (End of this chapter) Chapter 59 There is room for improvement on this wing Chapter 59 This wing still has room for improvement Previously, their digital design team could not even catch up with the progress of the project and fell further and further behind. But today, in just one afternoon, Chang Haonan has already directly started to look for the design problems of the 83rd Project and considered ways to improve it? ?This feeling is as if the student with the lowest grades in the class suddenly came first and had to give lectures to the top students in the class. Its almost like a dream. In fact, the reason why Chang Haonan was so confident was naturally because he knew that this problem existed in the August 3rd Project, and also knew that when he later designed the J-8F, some small changes were made to the wings to adapt to the size and A heavier air-to-ground weapon. It''s just that this time, he was no longer satisfied with just repeating the improvements made by later generations. Judging from the situation in the late 1990s, the J-8 actually has considerable potential. The People''s Air Force also needs an aircraft type to complete high-altitude tactical reconnaissance and interception missions. Of course, in the original timeline, the level of China''s aviation industry was still relatively low at this time. Later, when it developed enough to continue to tap the potential of the J-8F, it was already around 2010, which was indeed a bit late. But there is still a chance for Chang Haonan, who returns to 1996! Um...is there anything we can do to help? ?Lin Shikuan asked weakly from the side. ??If what Chang Haonan said is true, then this is an excellent opportunity for the entire digital design team to make a comeback. ?Even if it turns out that the other party''s worries are unfounded, there will be no problem. There is nothing to lose anyway. When this group was first established at the beginning of last year, because it did not require frequent trips to the workshop and climbing up and down to draw drawings by hand, it became a hot topic for a period of time. As the group leader, Lin Shikuan could even get one from every meeting. Front row seats. ??But as time went by, their status, which had never been able to produce convincing results, also declined day by day, and Lin Shikuan himself was embarrassed to sit in the front. ?Until recently, he always found a corner to hide in a meeting, for fear of being called on by the leader in front of him. Just like a graduate student whose progress is not optimistic during group meetings. Help Chang Haonan originally didnt expect what he needed, but after two clicks of the mouse, he discovered that the systems pointer style had changed from a familiar pointer to a small funnel that was constantly rotating. Before the advent of Windows 7, this cursor indicated that the system was busy and the user should wait. Do you have any better computers here, such as workstations or servers? There are two SUN workstations, but we usually only use them when performing complex calculations. Lin Shikuan replied. SUN...is for UNIX system? In the second half of the 1990s, with the continuous development of Windows NT and Linux systems, Unix has shown signs of gradual decline, but after all, it has advantages in security and stability, so it still has a fairly high stock. Of course, simulation software such as Fluent and Nastran can also be run in a Unix environment. Even for a long time, full-featured Fluent could only run on Unix. But Chang Haonan is not skilled in this. Its Unix, we have a manual, but its still very troublesome to use. No, please take me there. Chang Haonan pulled out the floppy disk from the computer. ? ? "Can you still use Unix?" ? ? Yao Mengna''s eyes sparkled with curiosity. I have studied some open source Linux systems, so there should be no problem in operation. "If I hadn''t seen your student ID card before, I couldn''t believe you were only in your twenties." Yao Mengna shook her head and sighed: "Sometimes I wonder if you have 48 hours a day, otherwise how could you learn So many things? It mainly depends on reasonable arrangement of time, and of course maybe a little bit of luck. ?While Chang Haonan was talking, he quietly spent 5 points in the system to start a new project. Carry out aerodynamic derivative and flight load analysis on the J-8 aircraft with bombs in the Unix environment, and study the influence of parameters such as aerodynamic type, flight dynamic pressure and angle of attack on the steering surface control efficiency In an instant, a large amount of knowledge about the Unix environment poured into Chang Haonan''s mind. Fortunately, he already knew the content related to aerodynamic simulation, so he did not find it too difficult to bear. At this time, Lin Shikuan, who was leading the way, suddenly asked in a slightly curious tone: "I know Linux, but what does open source mean?" Chang Haonan only realized after hearing this question that the concept of open source was only officially born in 1998. "Uh...it means free. After all, Unix requires a fee and is very expensive. It is impossible for computers in ordinary places to install this kind of system." Chang Haonan was not a programmer in his previous life. He didn''t know much about the details of these definitions, so he agreed casually. past. Fortunately, at this time, the three people also came to the room with the workstation next door. Lin Shikuan seemed to want to ask something else, but in the end he did not ask. He just walked forward and turned on the power of the workstation with unskilled movements. . As an operating system based on the command line, no one had developed beautiful graphical interfaces for Unix and Linux in the 1990s. Therefore, after turning on the workstation, Chang Haonan saw a monotonous command line interface. ?However, with the help of the system, although Chang Haonan actually saw Unix for the first time, he was able to use it with ease. Although this is not the first time I have experienced this feeling... fantastic. ?Although Lin Shikuan and his colleagues have been working in the wrong direction for the past year and a half, they are definitely not scratching the surface. They modeled the structure of the J-8-3 aircraft wing very carefully, saving Chang Haonan a lot of effort. The native version of fluent in the Unix environment has a GAMBIT pre-processing software specifically used for meshing, which allows it to skip the extremely long and boring meshing process to a certain extent and determine the mesh around the wing. The calculation starts directly after the flow field model. ?Yao Mengna looked at Chang Haonan who was operating the workstation, and felt as if she had returned to the afternoon when the two met for the first time. Lin Gong, when we came here in the morning, Mr. Yang said that our institute will have a project progress seminar tomorrow night. Is this something that all teams of the 83rd Project must participate in? After a while, Chang Haonan looked at the program that was being calculated in front of him, and turned back to Lin Shikuan, who had been watching behind him, and asked. Yes, this is the largest meeting of the entire project team once a month. When mentioning this matter, Lin Shikuan''s expression quickly fell: "Not only do each group have to send people to participate, but they also have to report on their work progress." Obviously, for him in the past, this kind of time was basically equivalent to a public execution. "Well... that''s good." Chang Haonan stood up from the chair and stretched his muscles: "Then when it comes to the meeting, can I speak on behalf of the digital design team?" (End of this chapter) Chapter 60 Amazing words (two in one) Chapter 60: Shocking words (two in one) "Of course there is no problem with that, but I have to know what you are going to say first, so that I can be prepared so that if any problems arise, I won''t be unable to step down." ?Lin Shikuan agreed to Chang Haonan''s request without much thought. Mainly because he was about to have a psychological shadow on speaking. After all, others are reporting on **** progress in their work. Even if there is nothing worth saying, everything is going well. Such a comparison makes their group very useless. Its nothing, its just that I have basically determined that the existing wing design needs to be modified to a certain extent. As for the specific data, I am still calculating it. If nothing else, I will probably get it by this time tomorrow. ?This breaking news almost made Lin Shikuan gasp for breath. ??He did think that Chang Haonan could help them fight a turnaround, but he never expected that it would turn around so quickly... "Dr. Chang, modifying the wing design is not a trivial matter. Are you...are you sure you can come up with a feasible modification plan in just one day?" "No, no, no, I misunderstood. Of course, it is impossible to know how to modify the wing in one day." Chang Haonan waved his hand and explained: "But it is enough for me to confirm that there is a problem with the wing and it must be modified." Cough cough cough ?Lin Shikuan, who had just managed to catch his breath, held it back again. ?This time Chang Haonan did not continue to make shocking remarks, but quietly waited for him to recover. "But what you just said is half right. If you use traditional design methods, then modifying the wing is indeed a matter that affects the whole body. But if digital design can be realized, then such a magnitude of modification will not delay Too much progress. But the Eighty-three Project has not yet achieved fully digital design. Lin Shikuan said, rubbing his chest that had just stung due to a violent cough. So Lin Gong, you have to speed up the progress and let other teams of the 83rd Project see that the digital design team is not only not a burden, but can also help them greatly improve their efficiency. Chang Haonan''s words made Lin Shikuan''s eyes suddenly brighten. Youre right, Dr. Chang, youre right The latter turned around and strode out of the room, returning to the computer room where everyone was just now. Work overtime tonight! ?The day passed quickly. After dinner the next day, Lin Shikuan took Chang Haonan and Yao Mengna to a large conference room. After all, every group involved in the 83rd Project in the 601 Institute must participate in the progress seminar. Some groups with more complex work even have to send several people over. As soon as the three people entered the door, Yang Fenghao, who was sitting at the head of the long conference table, noticed this. Xiao Chang, Xiao Yao, how do you two feel about being in the digital design team? Has Lin Gong helped you get familiar with the work? Lin Shikuan almost rolled his eyes when he heard this question - he didn''t feel that these two people needed him to work with them. In the past day or so, he had been led by the other party to make a lot of progress. It is no exaggeration to say that this day and a half has done more work than they have done in the past year and a half. After all, after working overtime last night, everyone in the team was convinced that they were finally heading in the right direction. We have been working on it for more than a day and feel pretty good. The forest workers are very efficient. We just didnt find the right direction before. ?Chang Haonan took the opportunity to help Lin Shikuan and others explain, and then received a grateful look from the latter. ??He had already thought about using the system to improve the power of the entire Chinese scientific research system when he was reborn. But this can only be done step by step. ? Chang Haonan, who was a military screwdriver in his previous life, had no decent management experience at all. Although he had taken charge of several projects, they did not require any complicated division of labor and collaboration, so that the system evaluated his management ability at level 0 and 0 experience. ?This digital design group with a simple structure, generally young members, and no pretensions or baggage is just right for a novice like Chang Haonan to hone his management and organizational skills. Thats why he tried to find ways to boost the self-confidence of Lin Shikuan and others. In fact, since yesterday afternoon, the system has shown that Chang Haonan''s management ability experience has been slowly increasing, and it has reached 15 o''clock just after receiving Lin Shikuan''s gratitude. ?While the three of them were talking to Yang Fenghata, other participating project members also entered the conference room one after another. After everyone sat down according to previous habits, the seminar officially started soon. Since Chang Haonan had never been exposed to J-8-related projects before, and the August 3rd Project was indeed legendary to this generation of military workers, he listened to the whole process with great interest. In general, the test flights of the three prototypes went smoothly, but some groups also mentioned some problems. ?For example, the WP14 engine is still immature and may induce surge under certain circumstances, especially at high speeds. However, the probability of this problem occurring is very low, so the specific reasons still require further investigation. ? It is still WP14. The engine life, especially the life of the turbine blades as hot-end components, is not ideal and there is still room for improvement. ? In addition, as a typical second-generation high-altitude and high-speed interceptor aircraft, there are problems with the stall angle of attack in a specific speed range and the available overload at large angles of attack. It needs to be limited by the flight control software to avoid entering a stall or spin state. ??Also, the fire control equipment group stated that the imitation progress of the Aspad-made PL11 air-to-air missile matched with the 1471G radar is so slow that they simply do not have enough ammunition for over-the-horizon attack testing. ?Finally, there is a somewhat peculiar problem. When the J-8-3 uses the innermost pylon of the wing to launch PL8 air-to-air missiles, there is a certain probability of causing the engine to stop. The reason for this matter is not complicated. The smoke and dust generated when the propellant of the PL8 missile is burned is very heavy, and the interference with the air inlet when the inner pylon is launched may lead to insufficient air intake or turbulent air flow. ??Its just that this is the same problem as the slow progress of the previous PL11 missile, which needs to be solved by the missile research and development unit. As for the problem of the WP14 engine, it is also not something that the 601 can handle. However, even considering the worst possibility, the J-8-3 can temporarily use the WP13F engine with a slightly smaller thrust, so that it will not be completely unable to reach the sky. Hence, after listening to the previous report, both Yang Fenghao, who presided over the meeting, and the team responsible for these tasks felt relatively comfortable. Then finally, let the digital design team talk about their progress. ?Yang Fenghata looked at Lin Shikuan, who was sitting in the back corner of the conference room. Since the digital design team is unable to guide aircraft design, they have almost become outsiders of the 83rd Project, and have been placed at the end of the report for a long time. ?But this time, it was not Lin Shikuan who stood up, but Chang Haonan, who was holding a report in his hand. To most of the people in the room, this was a new face. And usually, when the digital design team gives a report, it means that the workshop will end soon and everyone will relax. Many people have already begun to chat quietly among themselves. The information design team has completed an aerodynamic simulation of the J-8-3 aircraft in the past period of time. "According to our calculation results, when the aircraft carries two Aspad air-to-air missiles on the two outermost pylons at the same time, the aileron efficiency will drop sharply under large angles of attack, large aileron deflection angles and large dynamic pressures. There is even aileron reversal. The venue, which had been noisy just now, fell silent for an instant. As soon as these words came out, not to mention the other people present, even Yang Fenghao, who was already aware of Chang Haonan''s ability, first thought that there was an error in the simulation. After all, these two people only arrived at No. 601 at noon the day before yesterday, and it was less than 60 hours until now. In fact, Yang Fenghao originally planned to introduce them to the project members after the seminar ended today. ??This is the first time Chang Haonan himself has faced such a scene. Now almost everyone''s eyes are focused on him, with suspicion, confusion and even confusion in their eyes. But at such times, it is more important to show confidence and decisiveness. So he only paused for about two seconds and then continued: "Based on engineering experience, we can qualitatively know that the changing trend of aileron efficiency and roll rate with dynamic pressure is closely related to the aileron deflection angle and flight angle of attack, but the traditional linear aerodynamic analysis method cannot simulate such results. Therefore, aerodynamic analysis at high speeds and high angles of attack can only be based on experience, supplemented by a large amount of wind tunnel and test flight data. "But during the analysis process, we introduced external nonlinear aerodynamic forces and considered the elastic deformation of the wing structure, and successfully simulated the effects of angle of attack, wing load and aileron deflection on the aerodynamic efficiency of the wing. The final result The result is that once the aileron deflection exceeds 10 for an aircraft with 4 A bombs at Mach 1.4 speed and 12 angle of attack, aileron reaction will occur. ?Chang Haonan''s explanation made Yang Fenghao loosen his mind. He knows very well that nonlinear aerodynamic and structural analysis are the areas in which the other party is best at. Even when he agreed to invite Chang Haonan over, it was because of his outstanding abilities in these aspects. 603 The problem of wing flutter of the Y7-modified passenger aircraft also took one day to solve. ?After a brief hesitation for a few seconds, Yang Fenghao coughed twice, drawing everyone''s attention to him. Let me introduce, this is Dr. Chang Haonan, who I invited from the research group of Academician Du Yishan of Beijing Hang University to assist in the work. His specialty is the use of numerical methods for aerodynamic simulation and structural simulation. ??The venue that had been silent just now gradually became filled with whispers. ?Most people dont know what happened over there at No. 603 University, but the names of Beijing Hang University and Du Yishan are still somewhat convincing. At least it should be much more reliable than 601 Institutes own digital design team. Therefore, after Yang Fenghao pointed out Chang Haonan''s outsider status, everyone''s attitude towards him changed from complete disbelief to hesitation. Theoretically speaking, Chang Haonans explanation just now is indeed tenable. Aileron refers to a small movable wing surface installed on the outside of the trailing edge of the wing tip. Its main function is to generate rolling torque through differential deflection to make the aircraft perform roll maneuvers. It is one of the most important control surfaces of the aircraft. . And if the rolling moment generated by the aileron and the moment generated by the elastic deformation caused by the aerodynamic force on the wing cancel each other out, the aileron will not be able to continue to control the roll of the aircraft. When the flight speed continues to increase and exceeds the reaction speed, the rolling moment generated by the aileron will be less than the reverse moment generated by the wing deformation under the action of aerodynamic force. That is, when the pilot wants to control the aircraft to roll to the right, the aircraft will roll to the left due to the reverse torque. This is a very critical problem for formation flying and air combat. The simplest solution is naturally to limit the rudder operation of the aircraft in the flight control software - since the aileron angle will be counterproductive if it exceeds 10, then I write a command to prevent the aircraft from deflecting to more than 10 in the corresponding speed range. is enough. In fact, many aircraft did this. Even earlier aircraft would simply lock the aileron deflection angle through the mechanical structure to avoid danger from the source. ??However, the problem is that although this method ensures flight safety, it also limits the maneuverability, making the aircraft almost become an iron rod that can only make small movements at high speeds. ??If what Chang Haonan said is true, it means that the maneuverability of an aircraft with bombs will be severely limited at 1.4 times the speed of sound. For an interceptor aircraft, this is obviously not good news. Dr. Chang Haonan, I would like to ask, which method did you use to calculate the impact of wing elastic deformation on efficiency? As far as I know, there does not seem to be a reliable empirical algorithm to deal with this problem? On the other side of the conference room, a balding middle-aged engineer wearing a half-sleeved shirt raised his hand and asked. You are right, there is indeed no reliable formula to deal with it, but this is exactly the area that the CSD/CFD coupling method is good at solving, First, we calculate the aerodynamic performance of the wing under selected flight conditions based on the original aerodynamic model. At this time, we still treat the wing as a rigid model for analytical calculations. Then, the obtained aerodynamic load on the fluid node on the wing surface is interpolated to the structural model node through the equivalent node method, and the structural deformation of the wing under this load is calculated. "The third step is to obtain the new coordinates of the wing''s characteristic points based on the structural deformation for grid regeneration, establish a new aerodynamic model and then perform the next round of aerodynamic calculations. Repeat the above process until the convergence conditions are met, usually after 6-8 calculations. You can get convergence results. After the above three steps, the rigid lift and elastic lift of the wing under these two conditions can be obtained, thereby calculating the aileron efficiency under the selected flight conditions. Finally, by analyzing the lift coefficient and deformation of the wing under various calculation models and flight conditions, the relationship between them and aileron control can be obtained. If necessary, I also brought detailed calculation results. " Yang Fenghao''s expression became serious at this time. He waved to one of his assistants next to him, who then came to the back of the conference room, took a few pieces of paper from Chang Haonan''s hand, and then placed them one by one on the projector. under. ?Several line graphs were projected onto the screen. "this" The idea of ??the iterative method should be correct, but if the result is really like this, the project progress will probably..." I didnt expect that the digital design team could really come up with something. Regardless of whether the result is right or not, at least thats what it looks like... Obviously, although it is impossible to draw a conclusion based on what Chang Haonan said alone, everyone in the conference room has begun to take this calculation result seriously. (End of this chapter) Chapter 61 Then let’s take a test flight [Please read it! 】 Chapter 61 Lets take a test flight [Please follow up! ?At the front row of the conference table, Yang Fenghao and several other project team leaders gathered together to communicate quietly. ?Before the August 3rd Project, the J-8B had conducted flight tests with four PL8 short-range air-to-air missiles. Based on the results at that time, the adverse impact of the missile on the steering surface efficiency was within an acceptable range. ?However, Aspad is a beyond-visual-range air-to-air missile with a large volume and weight. This is the first time for China Aviation Industry to come into contact with related design issues. As Chang Haonan said just now, aerodynamic analysis at high speed and high angle of attack is still based on experience. Since I have never seen it before, I cant say that I have any experience, let alone analyze it. ?Similar to the situation at the time of the MA60, problems involving the rudder surface are difficult to restore using the wind tunnel alone. ??And if you directly follow Chang Haonan''s calculation results to conduct a flight test in one step, the risk will be relatively high. The safest way is of course to conduct a large number of test flights, starting from relatively mild flight conditions, and gradually approaching the theoretical position where the aileron reaction occurs, so as to maximize safety. But in this case, the progress may be delayed by weeks or even months. So several people discussed it for a while, but could not come up with a solution that everyone thought was feasible. In the area behind the conference room, the discussion became even more lively. Even Chang Haonan had a lot of people gathered around him, looking at the report he brought over. In fact, what was just taken to the front and projected onto the screen through the projector was only the final conclusion he reached after highly condensing and summarizing it. In order to reach this final conclusion, he analyzed many problems in the past day and a half, some to verify the accuracy of the algorithm, and others to provide data for the calculation of aileron efficiency. These analyzes cannot be said to have any guiding significance for the already highly completed August 3rd Project, but for the designers around Chang Haonan, compared to the somewhat shocking conclusion just now, it is the content they are more familiar with that attracts them. More powerful. This part of the calculation is...the pressure difference between the upper and lower wings when the aileron deflects? ?An engineer with thick glasses and gray hair picked up a few pages of the report, looked over them several times, and then asked in a somewhat surprised tone. "That''s right, this is the upper and lower wing surfaces at the three positions of 15%, 65% and 95% of the wingspan when the ailerons are deflected up and down 3 and 5 respectively under the flight condition of Mach 0.6 speed and 10 angle of attack. Pressure difference distribution map." ?Chang Haonan raised his head and glanced at the contents in the opponent''s hand, and showed a smile that seemed to succeed. ?What the opponent held in his hand happened to be a wing pressure difference cloud map he made to show off his skills. ??Originally, the computer output was just an ordinary line graph composed of discrete data points, but he spent about three hours plotting the data on the line graph on the cross-section of the wing. For people who are used to seeing scatter data, seeing this kind of three-dimensional cloud image for the first time is no less shocking than seeing a movie for the first time. "This data is quite similar to the results we obtained during previous test flights. Upward and downward deflection of the ailerons has the opposite effect. Downward deflection increases the lift and drag on the wing, while upward deflection reduces the lift and drag on the wing. " A middle-aged female engineer next to him leaned over to take a look and commented: "And Dr. Chang''s expression is very intuitive, especially the trend is easy to see." Yes, this is also one of the advantages of our digital design and simulation. Chang Haonan nodded and replied: "We can clearly see that the difference in lift on both sides of the wings causes the aircraft to roll, and the difference in the resistance of the wings on both sides will cause the aircraft to deflect and cause sideslip. After sideslip, an aileron roll will be offset. The effect of torque is reduced, thereby reducing the control efficiency of the aileron. When the speed and angle of attack are relatively low, mainly in the subsonic range, this drag is the main reason for weakening the aileron efficiency, but in general the impact is very small, and it can be reduced through differential ailerons. alleviate this problem. Having said this, Chang Haonan took out another page from the report in his hand and handed it over, and then continued: Once it enters the supersonic range or flies at a high angle of attack, the moment generated by the elastic deformation of the wing will rapidly increase, becoming the main factor affecting the aileron efficiency, which is what I said before. "Looking at this table, after considering the wing elasticity, the aileron should have provided a clockwise rolling moment, but it is obvious from the calculation results that the bending moment of the left wing root is smaller than that of the right wing root. , which shows that the aircraft in this state generates a counterclockwise rolling moment around the roll axis, that is, aileron reaction occurs. " As Chang Haonan''s explanation continued to deepen, he could even feel that the attitudes of people around him towards the digital design team, and even towards digital design itself, were changing at a speed visible to the naked eye. The main reason is that the several simulation results that Chang Haonan produced in succession are consistent with the test flight results they obtained before, and the gap is not big. ?This is real persuasive power. ? Many people still had a dismissive or disdainful expression when they first came over, but after listening to his explanation carefully, their expressions or eyes changed dramatically. At this time, Yang Fenghao and others also ended the discussion and motioned everyone to return to their positions. Dr. Chang, now I really obey you. After the crowd around Chang Haonan gradually dispersed, Lin Shikuan, who had just been squeezed out, sat back down next to him with admiration on his face: "The gray-haired old man just now is named Xu Jin. He has always felt that our digital design team is a complete waste of project resources. Every time we have such a meeting, he will target us intentionally or unintentionally. As a result, he only asked one question this time. , and then didnt say a word. Old comrade, its understandable that you have concerns about new things, but as long as you can present strong enough facts, I believe anyone who pays attention to science can be convinced. Chang Haonan did not look up, but replied while sorting out the report that had just been disrupted. ?At this time, Yang Fenghata in front of the conference room also spoke again: "I think after the exchange and discussion just now, everyone should be able to see that the issues raised by Comrade Chang Haonan are worthy of our serious consideration, so our next focus is to verify the aileron reaction effect when bombs are loaded. When will it appear?" ??If Yang Fenghao had made such a decision twenty minutes ago, he might have encountered some objections, but after circulating the report just now, everyone has some trust in Chang Haonan''s simulation calculation results. Just like this, the finalization of the design of the 83rd Project will inevitably be delayed. However, just when everyone was worried about the progress of the project, Chang Haonan spoke up again. I think the test flight verification work on aileron anti-effect can be divided into two stages. If it goes well, it should not delay too much progress. (End of this chapter) Chapter 62 I want to go to heaven Chapter 62 I want to go to heaven With one sentence, everyone''s attention once again focused on Chang Haonan behind the conference room. Only this time, he could hardly feel the suspicion in everyone''s eyes. After clearing his throat, Chang Haonan revealed his specific plan: The risks we face now mainly come from the uncertainty of how far the results of computer simulations differ from reality, so it can be verified in two steps. The calculation of aileron efficiency is essentially a flow field analysis, so we first select a working condition that ensures safe test flight, such as 1.2 times the speed of sound and an elevation angle of 10, and then I calculate the flow rate of the wing surface in this case. flow field distribution and then conduct a test flight. If the results obtained from this test flight are consistent with the calculation results, it means that there is no problem with the accuracy of the calculation results. The next step can be more radical and conduct a test flight directly near the operating point where aileron reaction occurs. ?This idea was actually inspired by the previous 603 Institute, which also used a similar method to divide the active vibration control technology into two steps, speeding up the verification progress while controlling the risk within an acceptable range. ?Of course, it is acceptable, but after all, it is not as reliable as the most conservative successive approximation method, and Yang Fenghata, as the chief designer, still needs to bear a certain amount of pressure. As soon as Chang Haonan finished speaking, a young-looking engineer not far away asked: This method is indeed feasible in theory, but your first step is to verify the flow field on the upper surface of the wing under the loaded bomb state. How should you proceed? Since the sensor technology in the 1990s was not advanced enough, it was difficult to measure the flow field distribution on the entire wing surface in real time. In many cases, it was necessary to judge based on the subjective feelings of the test pilot. ?Wind tunnel models are okay, but the degree of restoration cannot be compared with test flights. Its just that this question doesnt even require Chang Haonan to answer. Engineer Zhao has just joined the work two years ago, so he may not know much about some things. Our 601 Institute has already had experience in solving such problems. ??This time it was the old engineer Xu Jin who opened his mouth to explain to Chang Haonan. In fact, he has no prejudice against digital design itself. After all, people who engage in aircraft design cannot really be antiques. He just thinks that Lin Shikuan and others just waste money and do nothing. So after he just saw the report brought by Chang Haonan, he was very curious about how far the other party could achieve it. When we were working on the J-8B before, Commissioner Gu relied on sticking wool on the fuselage to observe the airflow on the surface of the fuselage, and solved the buffet problem that had troubled us for a long time. Now we can use the same method again. The title academician only began to appear in October 1993. Before that, it had been called academic member. Therefore, it is normal for older people to be unable to change it for a while. Chang Haonan looked at Xu Jin who was not far away and looked forward to it, and continued to add with a smile: "Engineer Xu is right. You can choose a few representative points on the wing surface to stick wool on, and then find a two-seater aircraft to fly beside it. This way you can intuitively observe the airflow at the corresponding location. After the test flight is over, we will be able to draw a conclusion by comparing it with my calculation results. And of course Xu Jin is not the only one who agrees with this idea. Divided into two steps... This idea is somewhat similar to the advanced results reported by Haojing some time ago..." ?Seeing that someone in the conference room had already mentioned the matter of Institute 603, Yang Fenghao also took advantage of the situation and said: Actually, everyone here may not know that the main person who completed the result just declared by the 603 Institute is Dr. Chang Haonan. One stone stirs up a thousand waves. ?Although many people have heard about the MA-60 project, they still dont know some details because it has not yet reached the end of the year for internal publicity. Except for a few leaders such as Yang Fenghao, no one at the 601 Institute knew that the first person to complete the results of the 603 Institute was actually from Beijing Hang University. It turned out to be him Its really impressive to be the first finisher at such a young age... ?These front-line engineers, who are also engaged in confidential work, may not pay too much attention to who published what paper. ??But the advanced results evaluated by the Aviation Industry Corporation of China or the Commission of Science, Technology and Industry for National Defense are definitely something that everyone is keen on. Being able to put a name on it is something worth writing about for many people, but Chang Haonan looks like he is no more than twenty-five years old, but he is already the first person to complete it. ??Waiting for the discussion to calm down a little, Yang Fenghao tapped the table lightly with the pen in his hand: Considering that we already have the experience of the brother research institute, I think the method proposed by Comrade Chang Haonan should be feasible. Lets do it like this. As for the candidates to fly with the plane... Since I am responsible for the calculation, let me do this heavenly work as well. ?When he first proposed this plan, Chang Haonan had already thought about doing it himself: ?In addition to the sense of responsibility, another less important reason is that he really wants to experience the feeling of flying in a fighter jet. The conditions now are much better than those of Mr. Gus time. I can bring a camera up there and take pictures of the airflow pattern on the wing of the prototype. ?When Gu Yongfen was designing the J-8B, he brought a telescope for on-site observation. However, in 1996, cameras with optical zoom capabilities were already quite popular, and it was possible to take photos and keep them for later analysis after returning to the ground. ??Yang Fenghata briefly communicated with the two deputy chief designers next to him, then raised his head and said: "We agree in principle on this matter, but we have to ask the comrades from the Air Force test flight unit to do a physical examination on you and make sure you are fine before you can get on the plane." Chang Haonan naturally had no objection to this. During the Air Force''s physical examination for recruiting pilots, he only failed in one item: misaligned teeth. ?What was originally an ordinary and routine progress seminar became extremely enriched by the appearance of Chang Haonan and lasted for six hours. When all the details of the verification work were finalized, it was already close to midnight that day. "The situation regarding the wing efficiency test has been decided first. After the meeting, Dr. Chang and Dr. Yao, as well as the digital design team, will come up with the simulation results of the flow field as soon as possible. As for the aircraft problem, I will contact the comrades in the Air Force. , ask them to borrow a JJ-7." ?Yang Fenghata concluded in a hoarse voice: As for comrades from other groups, lets continue with the work at hand. If the aileron reversal problem is verified by then, we will discuss solutions. The meeting is dismissed! (End of this chapter) Chapter 63 stronger than them Chapter 63 Stronger than them After the seminar, Chang Haonan was not surprised to be surrounded by a group of people again. In addition to those who come to him to discuss fluid dynamics simulation issues, there are also some people who are very interested in the situation of MA-60. ?Even Yao Mengna and Lin Shikuan who were with him were asked a lot of questions. So it was not until about one o''clock in the morning that Chang Haonan and the three finally "escaped" from the conference room. ? Lin Shikuan, who had not encountered such a battle for a long time, moved his somewhat stiff body and took a deep breath with pleasure. Even though I am following Chang Haonan, I still feel like I am surrounded and asked questions. Cool! ?But as soon as he thought about it, he felt a little worried again. Dr. Chang, can the flow field simulation analysis you just mentioned at the meeting really match the test flight results? Over the past year or so, Lin Shikuan and his engineers have actually been working very hard to learn from the advanced experience of their foreign counterparts. Even though information technology is not developed and there are technical barriers in the field of engineering simulation, they are still Read a lot of literature and technical manuals. You cant really blame them for not making any outstanding achievements. After all, China has no foundation in this area. So Lin Shikuan is very clear that even Americans who are at the forefront of the world in aerodynamic simulations cannot guarantee the accuracy of numerical calculation results. They can only say that there are no problems with the laws. However, Chang Haonan is ready to directly challenge the comparison between numerical calculation results and test flight data! "Is it completely consistent? Of course I dare not say, so we need to test the flight." Chang Haonan shook his head: "But if you can choose the right simulation method, it is not difficult to control the average difference to about 5%. " ?This data shocked Lin Shikuan so much that he even forgot to continue walking and stood still in place. In the field of engineering design, an error of 5% is an accuracy that is undreamed of. You cannot find two identical leaves on a tree, nor can you find two identical air currents on the earth. Even if the same aircraft is used for two consecutive test flights, there may be a few percent difference between the data obtained. Butbuthow was this done? Lin Shikuan asked in an unbelievable tone: We have also communicated with the French and Americans, and even they cannot achieve this level. Could it be that they are hiding their secrets? This is not a technical detail, there is no need to hide it. Chang Haonan waved his hand: Besides, as long as you refer to their aircraft design cycle, you can roughly estimate that they really cannot achieve this level of accuracy. But, have you ever thought about Speaking of this, Chang Haonan suddenly stopped and turned around to face Lin Shikuan behind him: What they cant do, doesnt mean we cant do it too? Or is it that we are stronger than them? "this" ?Lin Shikuan stared blankly at Chang Haonan, who had his hands in his pockets. He could feel that what a confident spirit was hidden under the other person''s calm appearance! We are already stronger than them! ?How many people in the 1990s could say this from the bottom of their hearts? However, Chang Haonan didn''t just say it. ??His tone and expression when he said this sentence seemed to have a kind of magic that made others believe that he could really do it. ?Yao Mengna, who had been walking alone in front, subconsciously looked back because of these words. ?The other party''s image seemed to grow taller at this moment. ?Of course, what neither of them know is that for Chang Haonan, who returns from 2023, having this kind of thinking is really normal. Looking at Lin Shikuan who was stunned, Chang Haonan smiled, turned around and continued walking towards the dormitory. The former finally reacted at this time and quickly caught up to Chang Haonan: You are right, we can be better than them, but in terms of aerodynamic simulation... Among other things, the software we use is written by French and Americans. In fact, for people living in this era, it is very normal to have this kind of thinking. ??Be it Yao Mengna or Lin Shikuan, their patriotism may not be any worse than Chang Haonan''s. But feelings are on one side and reality is on the other side. Faced with the huge gap, it is easy for people to lose hope after being hit one after another. Chang Haonan can become that hope. Software, after all, is just a tool. He shrugged and replied: Those who build tools are not necessarily the best at using them, just like those of us who build airplanes may not necessarily be able to fly airplanes. After a pause for a few seconds, he continued to add: But what you said makes sense. After all, other peoples tools are not the most convenient. Sooner or later, we can also use our own tools. reasonable and well-founded. ?Lin Shikuan nodded after hearing this: Well, I hope you are right. If you need any help during this period, just let me know. Our entire digital design team will listen to you. Of course, Chang Haonan was not prepared to be polite to the other party. After all, he was still counting on gaining more management experience through these people. "The flow field simulation itself can be done by the two of us. Your task is to follow the idea mentioned by Yao Bo the day before yesterday and produce the digital structural diagram of the entire aircraft as quickly as possible. This will greatly improve the performance of the wing when it is improved later. efficiency." In the original timeline, the J-8F added an additional pair of wing blades in order to straighten out the turbulent flow field on the wing surface after carrying bombs. From an engineering point of view, this was of course the method with the least impact on the overall design. Later, The Americans encountered the same problem when developing the EA18G. The solution was to simply add a pair of wing knives. ?However, this does not mean that there are no better solutions. A better plan means more changes. If digital design methods are not adopted, the delay to the project progress will be very serious. We must do it as soon as possible. When Lin Shikuan said this, he hesitated. A few seconds later, he turned around and walked back in the opposite direction. Eh? What are you doing? Yao Mengna, who was walking together, didnt react for a moment. Go and work overtime. "this" Yao Mengna looked at Lin Shikuan who was gradually walking away, and then at Chang Haonan next to her. Arent we going along? The latter shook his head neatly: I know the progress well, and calculation and simulation rely on inspiration, so I have to rest well. Three days later, when a J-7 aircraft borrowed by Yang Fenghao landed on the runway of Beiling Airport, Chang Haonan also handed the calculation results of the wing flow field into the hands of the former. ? Such speed almost caught the project team by surpriseno one expected that the simulation results would be available within three days. In fact, this is because two people spent one day converting the numerical results output by the computer into a more intuitive flow field distribution map, otherwise two days would be enough. ?Yang Fenghata looked at the simulation results in front of him and took a deep breath: Change your schedule and fly in advance! (End of this chapter) Chapter 64 Im so lucky Chapter 64 I really went to heaven After a physical examination confirmed that there were no physical problems, Chang Haonan, wearing a flight suit and a flight helmet, carefully climbed into the front cockpit of the J-7 aircraft with the help of ground crew members early the next morning. As a training aircraft, the rear cabin of the JJ-7 has a higher level of flight control authority. Sitting there was the most experienced flight instructor in the army, named Zhang Jiujiang. ?A few dozen meters away from the J-7, a fighter jet with a slender body was also ready to fly. ? It is the No. 03 prototype of the J-8-3, and it is also the first of the two full-state verification machines in the original plan. To be honest, this is the first time Chang Haonan has seen the J-8 fighter jet with his own eyes. Although it is not comparable to the J-10, J-16, J-20 and other advanced models he had seen before his rebirth, in this era, especially when it is parked near the J-6 or J-7, the visual effect is outstanding. Its no wonder that he got the title of Cai Guoqing in the Sky. ?According to Chang Haonan''s calculation conditions, the No. 03 prototype has two Aspaid air-to-air missiles hung under each of its left and right wings. ??They are all models that have restored the weight and size. After all, the total number of missiles purchased from Italy is less than 80. Every time they take off, their lifespan will be consumed even if they are not launched. Naturally, it is impossible to even out 5% of the number for test flights at one time. Chang Haonan put on the oxygen mask according to the training before boarding the plane, took a deep breath, and closed the canopy to the left. ??The sound of the howling wind outside and the sound of the power supply truck and the gas supply truck working suddenly became much quieter. As a light aircraft, the cockpit of the J-7 was much smaller than he imagined, so that just sitting in it felt cramped. Engineer Chang, after taking off, you must be careful not to step on the rudder with your feet, and dont touch anything on the aircraft panel. Zhang Jiujiang was in the back seat while doing the final inspection before the flight and said: After taking off, I will try my best to ensure that the plane is as stable as possible, but after all, this is a small plane, and it will still be a little bumpy if it encounters airflow. If you feel uncomfortable in any way, you must tell me immediately. No problem. Chang Haonan gestured backward to indicate that he understood. As soon as he finished speaking, the No. 03 prototype next to him had released its brakes and started to slide slowly, and quickly passed in front of Chang Haonan. ?Compared with the J-7 he was riding on, the J-8-3 is indeed a very huge aircraft. This new aircraft of yours should be equipped with troops soon, right? Zhang Jiujiang looked at the back of the No. 03 verification aircraft slowly going away, and suddenly asked Chang Haonan. The latter thought for a while and felt that he should be able to solve all the pitfalls encountered in the 83rd Project. In fact, in the original timeline, if the unlucky No. 04 prototype had not been damaged due to completely non-technical reasons, even if the reliability of WP14 was not optimistic, the J-8-3 might have finally been finalized in a technical state similar to the J-8F service. Maybe, the current progress is pretty good. Thats great, we now dream of more advanced fighters. After hearing Chang Haonans answer, Zhang Jiujiangs tone became significantly lighter: Its a pity that the number of J-8B and Su-27 is too small now. For people within the aviation industry system and the Air Force, these are certainly no secrets. Can the J-8B still be considered an advanced fighter? Chang Haonan said with a dumb smile. "Alas, you don''t know how much those of us who fly J-6 and J-7 envy those J-8 troops." Zhang Jiujiang said and also put on the oxygen mask on his face: "At least they can fly one or two every time For an hour, we sometimes make bigger moves and have to return in half an hour. Chang Haonan really wanted to tell the other party that there should be a large number of heavy-duty fighter jets in service in a few years, but it was obviously not possible to say this now. It was appropriate, so the atmosphere in the cabin fell silent for a while. Fortunately, the No. 03 prototype in front had already taken off at this time, and the tower informed Zhang Jiujiang that it was ready to enter the runway. As several surrounding auxiliary vehicles evacuated one after another, Zhang Jiujiang slowly pushed the throttle valve to keep the engine speed at about half, and then released the brakes. Chang Haonan, who was in the front seat, only heard the roar of the turbojet engine gradually increasing, and then the plane began to slide amidst a sudden pushing sensation. ?Although he had flown a lot in his previous life, this was the first time he had such a broad view. There is still some freshness. ?But soon, as the plane began to speed up and prepare to take off, Chang Haonan felt as if there was a huge force pressing his whole body on the back of the seat, making it difficult for him to even breathe. The JJ-7 took off at a very high speed, so the rolling phase lasted for a relatively long time. But in the final analysis, it is just a light aircraft, and it was still very light when it finally took off from the ground. Engineer Chang, how are you feeling? Do you have any symptoms such as dizziness or stomachache? ?Zhang Jiujiang looked at Chang Haonan in front of him who had remained motionless and asked with some worry. It doesnt matter, I feel good, its just the first time to go to the sky from this angle, it feels a bit...new. Soon, the J-7 broke through the speed of sound at an altitude of 11,000 meters. The vibrations at high subsonic speeds disappeared instantly, and the aircraft became stable. Pay attention to the rearview mirror, the prototype is slightly lower than us. Zhang Jiujiang reminded. ?Chang Haonan raised the camera hanging on his body and pointed it to the right, always ready to press the shutter. ?Zhang Jiujiang is indeed one of the best flight instructors in the army, and he has perfect control of speed and position. Under his control, the relative speed between the two aircraft was only about 10 kilometers per hour. The J-7 even performed a smooth and slow barrel roll maneuver, providing Chang Haonan with an excellent shooting opportunity. Half an hour later, the two planes landed smoothly. Chang Hao went down to the ground and handed the camera in his hand to Yang Fenghata, who was already waiting next to the tarmac. The photos were quickly imported into the nearby computer, ready to be compared with Chang Haonans calculation results. "Why don''t you come and witness it with your own eyes?" Yang Fenghao looked at Chang Haonan, who was leaning next to the boarding ladder with a calm expression. Chang Haonan showed a confident smile after hearing this: No need, I already knew the result when I saw the No. 03 prototype in the sky. Waiting until the other party turned around, he quickly reached out his hand and rubbed the back of his thigh, which was a little weak ??I didnt feel it when I was on the plane. Just now when I landed on the ground, my legs were a little weak, and I almost made a fool of myself in public by not being able to stand. After all, it was a bit too exciting to experience supersonic flight in a fighter jet for the first time. Just when Chang Haonan finally managed to regain control of his legs and was about to try to stand up straight, a burst of cheers suddenly broke out from the crowd surrounding the computer not far away. Thats right! Its completely right! Chang Haonans simulation analysis results are almost completely consistent with the real flow field distribution shown by the red thin lines in the photo! (End of this chapter) Chapter 65 Remarks on the launch Chapter 65 Remarks on the Release This book will be officially put on the shelves at 12 noon tomorrow. Thank you very much for your great support to let this book come here all the way. ?Especially being able to jump directly to Sanjiang from the third round push is indeed beyond my own expectations. ?As we all know, the first order is the lifeblood of a book and is related to a series of subsequent recommendations after it is put on the shelf. So I hope that all readers will appreciate it and give me a first subscription, at least not to make the results too ugly. ?As for the update issue, the daily sales of 5 chapters are guaranteed to be 10,000 on the day it is released. If the first order can exceed 2,500, it will continue to be 10,000 the next day. On this basis, for every additional 500 you order for the first time, you will get an additional 10,000 per day. If a reward is given, the helmsman will add one update, the leader will add three updates, and the alliance leader will add five updates. We have never seen a higher reward, and we dare not say anything about it, otherwise it will appear that we lack self-knowledge. As we all know, it is not easy to write for academic masters. The number of papers I read every day for writing books is almost 50-50 compared to the number of papers I read for work, so the daily limit should be 4,000 to 6,000 words. There is not much to say, please subscribe, please reward, please vote! ?Your support is the motivation for me to stay up late! (End of this chapter) Chapter 66 Solution【Please order first! ! ! 】(15) Chapter 66 Solution [Please order first! ! (15) After confirming that there is no problem with the accuracy of Chang Haonan''s simulation method, the remaining work is to conduct a few more test flights to obtain detailed data on the aircraft when aileron reaction occurs. With the efforts of the test flight team, the two prototypes 03 and 04 took off in turns, and it took only five days to complete all the test flights. It was finally proven that Chang Haonans calculation was completely correct. When the airspeed and elevation angle of an aircraft with bombs reach a certain value, aileron reversal will occur. In fact, even if the mount is adjusted to be closer to the actual combat status of two Aspade plus two Thunderbolt 8, this situation is still unavoidable, but it will appear later. As the test flight work ended, Chang Haonan''s system status also changed. Research Points: 85 Theoretical level: LV2 (0/10000) Engineering experience: LV1 (70/1000) Management ability: LV0 (65/100) Comprehensive ability: LV1 Projects in progress: 0 Projects that can be carried out: 1] Compared to before, it has gained 10 scientific research points and up to 50 management experience points. It can be considered a good harvest. The afternoon of the day when the complete test flight data was obtained. Its still the same conference room, with the same people as last time. ?Just because of Chang Haonan''s unusually outspoken behavior, today he, Yao Mengna and Lin Shikuan were directly invited to the seat near Yang Fenghao in front of the conference table. ?This time, the atmosphere in the venue became much more solemn Aileron reaction occurs at less than twice the speed of sound, and the corresponding deflection angle when aileron reaction occurs is only 10. The corresponding roll rate is less than 30 per second, and it takes 3 seconds to perform an ordinary 90 roll away action. This is completely unacceptable for an interceptor aircraft that focuses on high-altitude and high-speed capabilities. So everyone ruled out the answer of limiting flight performance through flight control from the beginning. The wings must be modified. ?In 1996, people were not so shy about smoking in public places, so not long after everyone entered the conference room, the whole room became filled with smoke. ?Chang Haonan hated the smell of smoke very much, so he moved slightly closer to the window. The first person to speak was of course Yang Fenghao: "Don''t be discouraged. Since the problem exists, it is better to find it as early as possible. The earlier, the less progress we will delay. So from this perspective, it is the first time that Comrade Xiao Chang and Comrade Xiao Yao joined the August 3rd Project Project Team. After that, its a great gift for us. After a moment of silence, I dont know who was the first to take the lead in applauding. Then there was thunderous applause. ?This sentence not only praised Chang Haonan and Yao Mengna, but also boosted the morale of the entire project team. After the applause gradually subsided, Yang Fenghao continued: "In order not to delay the test flight progress of Project 83 as much as possible, I decided to transfer the No. 03 prototype to Yanliang early next month according to the previous plan, and conduct a test flight that does not involve the project with bombs first, while the No. 04 verification aircraft will be kept. At Factory 112, preparations are being made for modification. Considering this, the No. 03 aircraft can no longer be regarded as a full-state verification machine. Therefore, after the wing problem is solved, a No. 05 verification machine will be built using backup parts, and a full-state verification flight will be carried out together with the No. 04. In this way, we can have relatively ample time to improve the wing. A few minutes later, Liu Ming, the deputy chief designer sitting first on Yang Fenghata''s left hand side, finally spoke. "Comrades, according to the data obtained from the test flights in the past few days, the reason for the aileron reversal is not complicated, but is the common problem of boundary layer accumulation." "The simplest solution is to flow horizontally on the wing. Add a pair of wing knives for dramatic locations." ?Chang Haonan nodded slightly. The engineers of Institute 601 indeed chose the same solution as later generations. In fact, from the current perspective, it is indeed the best way. ?During the flight of an aircraft, the airflow on the upper surface of the wing will automatically flow toward the wingtip, and accordingly, the boundary layer will gradually accumulate toward the wingtip. The accumulated airflow will eventually separate at the wing tip, and this separation process will bring a large shear force, causing obvious elastic deformation of the wing, thus causing aileron efficiency to decrease or even become counterproductive. ? To avoid this situation, the simplest way is to add a pair of baffles on the upper surface of the wing to block the lateral moving airflow. That is, wing knife. ?However, some people still put forward different opinions But Mr. Liu, the current J-8-3 already has two pairs of wing blades on its wings. If we add another pair, would it be a bit..." Although the wing blade is simple and effective, it is not without cost. The essence of its working principle is to break the leading edge vortex early, thus reducing the lift coefficient and stall angle of attack, which still has a certain impact on flight performance. ??Moreover, designing too many wing-wing knives will not look good in terms of appearance. Is it possible to consider merging three sets of small wing blades into one large set of wing blades, like the J-6? another person asked. ?However, it was quickly rejected: That can only reduce a little weight, but it will have a greater impact on lift and over-stall capabilities. For an aircraft as big as the J-8-3, the gain outweighs the loss. The heated discussion lasted for about half an hour, but there was still no solution that everyone agreed on. Finally, someone turned their attention to Chang Haonan, who had been looking down at the report in his hand without speaking. Dr. Chang, since you discovered this problem, do you know if there is a better solution? The conference room gradually became quiet. ?Chang Haonan stood up and walked to the blackboard with test flight results and design drawings. First of all, I want to tell you some good news. Chang Haonan turned around, looked at the engineers in front of him and said: After the efforts of the entire digital design team in the past few days, the parametric modeling of the aerodynamic and structural design of the J-8-3 prototype has been basically completed, so the time spent on modifying the design should be lower than expected. Another unusual result. The optimization design of the aircraft aerodynamic shape requires the evaluation of various aerodynamic shapes, so the aircraft aerodynamic shape needs to be repeatedly modified in order to improve its aerodynamic performance. Once you have a parametric model, you can drive changes in the geometric model by changing the design parameters, thus greatly shortening the geometric model modeling cycle. ?Lin Shibuan''s people had been working on a task for a year and a half without making much substantial progress, but Chang Haonan was able to solve it in less than ten days after coming over. Although the latter did not mention his name, almost everyone agreed that this was a manifestation of his deep hidden merit and fame. There was another round of applause. ?Chang Haonan stretched out his hand and pressed it down to signal to keep a low profile: As for the improvement plan for the wing, I do have an immature idea. Chang Haonan picked up an unsharpened pencil and drew on the design drawing and continued: The idea of ??adding a pair of wing blades is okay, but according to my simulation results, the area with the densest cross-airflow on the wing surface is near the trailing edge of the wing. Therefore, I think that the existing upper and lower aileron hinge fairings can be expanded into trailing edge wing blades. This increase in dead weight is almost negligible, and the look and feel is closer to the original bi-wing blades. At the same time, leading edge devices, such as leading edge **** or leading edge slats, can be introduced into the wing design. This can not only compensate for the impact of wing blades on the lift coefficient and stall angle of attack in the medium and low speed range, but can even greatly Improve the aircrafts low-altitude and low-speed performance! (End of this chapter) Chapter 67 Leading edge slats (25) Chapter 67 Leading edge slats (25) As we all know, the J-8 series fighter jets have poor low-altitude and low-speed performance. ?In addition to the poor performance of the turbojet engine itself at low altitude and low speed, a more important reason is that due to objective reasons, the aircraft chose a rather simple wing configuration during design. There is no leading edge device, and the trailing edge is just the most common traditional flap. Since the flow of this kind of flap is easy to separate from the suction-producing side, the wake is not stable. Flow separation occurs on the flap at medium deflection angles, and the lift-increasing capability is very average. ?But from another perspective, a low starting point means there is a lot of room for improvement, which is not necessarily a bad thing for the current Chang Haonan. Only this time, there is no experience for future generations to draw from. Hence, he has not yet decided whether to install leading edge **** or leading edge slats. The leading edge slat has a better lift effect, but the structure is more complex and it also brings greater noise. ?Of course, this is just a general rule, and the specific performance must ultimately be implemented at the design level. In general, there are advantages and disadvantages between the two, and it mainly depends on how to choose. Hearing Chang Haonans idea of ??extending the aileron hinge fairing into a trailing edge wing blade, almost everyone present brightened up. But when they heard about the leading edge lifting device, many people showed expressions of hesitation. Finally, Liu Ming concluded: Comrade Xiao Changs idea about the design of the wing knife is indeed very good. As for the leading edge lifting device Liu Ming and Yang Fenghao, who was sitting in front, looked at each other: Actually, when the 83 Project was still in the pre-research stage, around the end of the 1980s, we collaborated with the French company Dassault to design a leading edge slat, which was intended to be used to improve the J-8-2 aircraft at that time. This is something Chang Haonan has never heard of before. Yes, Mr. Gu also said at the beginning that if the J-8 can be equipped with a suitable set of leading edge slats, the overall performance will not be weaker than that of the Mirage 2000. Yang Fenghao also recalled: It happened to coincide with the honeymoon period of our cooperation with the French in the aviation industry, and a joint study was launched, probably at the same time as the Peace Model Project. ??When Yang Fenghata mentioned the words "model of peace", the air pressure in the entire venue instantly dropped a little. That story can be called a shame for Chinas aviation industry. In the mid-1980s, nearly US$600 million in currency value was wasted. Two aircraft were detained for several years without reason before they were returned to the country in parts. Some pro-American media in later generations even shamelessly promoted this plan as the so-called "starting point for the modernization of China''s aviation industry"! In fact, a large part of the reason why the August 3rd Project was established and received so many resources was because of the shameful failure of this model peace plan. We want to build a fighting machine, a fighter plane that can prove that we can do it without the help of Americans! Hmmhow was the design completed at that time? Chang Haonan asked. Honestly, its not that good. Yang Fenghao shook his head: We have been working with Dassault engineers for about two years, but the final design version still failed to achieve the performance that the French originally expected. "On the one hand, the structure is a bit too complex, and on the other hand, there is a lack of sufficient design tools. During wind tunnel testing, we found that there is always interference between the leading edge slats and trailing edge flaps, resulting in a lower lift effect. Only when its flap. This result was not what Chang Haonan expected. ??The biggest gain from Sino-French cooperation is that our country learned a complete set of aviation industry standards from the other country, and finally formed a complete national military standard in the air force field with reference to French military standards. But specifically in terms of technology, there are really not many results that can be achieved, that is, there are only a few types of Z-9 helicopters and Sidewinder anti-aircraft missiles. The design of the Agosta 90B submarine proved to be completely inferior to Kilo. ?Super Hornet helicopters have been tinkered with for nearly 40 years. In the end, a new model was almost designed from scratch before being deployed on a large scale under the name of 8G/L. ? ?The 100mm naval gun, which was considered to be able to unify the main gun types of large and medium-sized surface ships, was even more of a sinkhole. After only being briefly equipped with about a dozen ships, the 100mm caliber was completely replaced by the 130/76 caliber. Its not that the French are deliberately doing bad things, its actually that they themselves were walking on these crooked roads back then... In short, given these precedents, it does not seem very surprising that a leading edge slat design does not work well. ?But having said that, Dassault is indeed experienced in the design of large delta wings. From Mirage 3 to Mirage 2000, a variety of classic tailless delta wing aircraft were designed by Marcel Dassault. So Chang Haonan is somewhat interested in the design they gave. Mr. Yang, I wonder if there are still archives of Dassaults designs from back then? Are you going to improve their slat design? Yang Fenghao asked, playing with the pen in his hand. It may not be an improvement. Chang Haonan shook his head: You may need to start the design from scratch, but its always good to refer to the experience of the French. The performance of slats in increasing lift is better than that of leading edge flaps. As for the design, I think that since ten years have passed, many problems that could not be solved back then may not be problems now. ? ? When Chang Haonan first arrived at the 601 Institute a dozen days ago, if a young man in his early twenties dared to boast that he would complete a slat design that even the French had not done, I am afraid most people would have scoffed. But now, considering the amazing abilities that Chang Haonan has shown before, the first reaction of most people in the venue is that this thing may be possible! About an hour later, the long-dusted leading edge slat design data was taken out of the data room of Institute 601 and sent to the conference room. For such a serious work as aircraft design, the so-called design data cannot be just a design drawing, but two boxes filled with calculations and explanation documents. ?Of course, Chang Haonan does not need to see all of these things. His focus is firstly on the design plan itself, and secondly on what difficulties the French and the 601 Institute encountered back then, so that they could not even complete the paper design process. However, when Chang Haonan opened the overall design drawing and saw the complicated three-stage leading edge slat design, he almost subconsciously uttered a curse word. Oh my god, why is this a plan? Thats right, Chang Haonan had seen the slat design that was almost exactly the same as the one on the drawing before he was reborn. But it was neither on the Chinese plane nor on the French plane. But on a plane in India The LCA "Tejas" fighter was designed since 1983 and was not put into service until 2016. Its tailless delta wing layout was designed by Dassault. The leading edge slats of LCA are this precise and complex three-section structure. ?Now it seems that 80% of the time it was Dassault who perfected this semi-finished product after returning and stuffed it directly into LCA... (End of this chapter) Chapter 68 The courage to tear down and start over (35) Chapter 68 The courage to push back and start over (35) ?Chang Haonans subconscious complaint just now naturally aroused a burst of curiosity. Dr. Chang has seen similar designs before? Someone came into the conference room and asked curiously. Thats not true, I can only say that I have a certain understanding. Chang Haonan quickly went back to make up for it: "This three-stage slat is more suitable for use on French fighter jets with a tailless delta wing layout. It works together with the two-stage elevon on the trailing edge to guide the airflow between the wing root and the vertical tail. form a vortex. "But our J-8-2 has a conventional layout, and there is a horizontal tail at the back. The advantages of this design cannot be used. Instead, the drag and dead weight are increased for no reason. It is normal that the effect is not good. No wonder Mr. Yang just said This design is too complicated. ?After hearing this judgment, many people nodded in agreement. The cooperation with Dassault was in the mid-1980s. At that time, the Chinese aviation industry could only be said to have just begun to try to truly "design" rather than just imitate a fighter jet. Many things were indeed blank, and in 1996 this year At least everyone has some experience by now, and can naturally see the problems with this plan. ??Yang Fenghao stood up and came to the two boxes containing information. He very skillfully found a relatively new design document and handed it to Chang Haonan: "The complexity is secondary. After the French withdrew, we also tried to make some improvements. We only retained the two sections of the three-section slats on the outside of the wing, and then changed the structure to an ordinary one-section, so that the dead weight was reduced. But the interference problem between the ailerons and **** just mentioned has not been solved yet. Chang Haonan opened the thick document. Judging from the date of 1990 on it, it should be the improvement mentioned by Yang Fenghao. But at this time, he had basically made a judgment about the problem. Although the application of leading edge slats has a long history, as a relatively simple and crude lift-increasing device, aircraft designers have long been focused on two main points: the length of the slats and the position of the slats. As for that slat There is relatively little research on the "seam" that actually plays a role. Of course, this is mainly because before the mid-1990s, there was really no condition to conduct too detailed research on complex flow fields. Everyone only knew the basic principles of slats and their effects on improving low-speed maneuverability and high angle-of-attack performance. Another half an hour passed, and Chang Haonan directly skipped the calculation design part, and finally found what he wanted in the final wind tunnel test data. Mr. Yang, I can make this slat design! He closed the design document and returned it to its original position in the data box, then raised his head and looked at Yang Fenghata beside him: However, Im afraid its not enough just based on the conditions of our 601 institute. The conditions of 601 Institute are not acceptable? Liu Ming next to him could not help but widen his eyes. Yes, from the design document that Mr. Yang just took out, we can summarize several major issues in the slat design. ?Chang Haonan turned around and walked to the blackboard again, but this time he picked up a piece of chalk, and then turned the blackboard to the side with nothing on it: "First, for multi-segment airfoils with large flap deflection angles, even if the incoming Mach number is not high, limited supersonic flow may appear on the upper surface of the leading edge, and there will be interference in the transonic zone and shock wave boundary layer. In other words, In other words, even if the slats only activate at subsonic speeds, it will still involve the most complex transonic flow field simulation. Second, the wake of the upstream wing section is often mixed with the boundary layer on the surface of the downstream wing section. The resulting shear layer is a mixed boundary layer, and there is no ready-made empirical formula for use. "The third and most fatal thing is that when the trailing edge flap deflects, a separation bubble will form at the trailing edge of the main wing. If the leading edge slat deflects at the same time, then the mixed boundary layer and flow separation will appear at the same time, and There is interference between the two lifting devices on the leading edge and the trailing edge. Chang Haonan drew a classic three-section wing model of leading edge-main wing-trailing edge while talking, and then began to mark the flow conditions involved in the upper surface of the wing when the two devices work together. Thats true. Especially the third point you mentioned, Comrade Xiao Chang, was something we couldnt figure out when summarizing our experience and lessons at that time. Yang Fenghao nodded with emotion. On the one hand, he remembered the difficulties he encountered when designing this leading edge slat. On the other hand, he was amazed that Chang Haonan could condense the entire design in such a short period of time. The most critical question. Being able to find the main problems in complex real-life situations is already a very rare ability. So, since there is interference between the slats and the flaps, it may not be enough to just improve the former. Chang Haonan drew a circle on the wing model he just drew and continued: "I plan to treat the two as a whole and carry out a more detailed integrated design, comprehensively considering the following five factors: trailing edge flap deflection angle, trailing edge flap chord length, leading edge slat deflection angle, overlap amount, and slot width. Variables, completely overturn the entire plan. "In addition, after the design is completed, I am also planning to consider adding a set of parallel blades to the trailing edge of the leading edge slat as a flow deflector to guide the energy of the incoming flow into the vicinity of the wing surface and increase the wall boundary layer. The anti-separation ability further inhibits the occurrence of stalling. "But in this way, we need to solve the Reynolds average N-S equation through numerical methods for CFD simulation. The amount of calculation is very huge. It may take a long time to get the results just relying on the few workstations in the computing center, so I hope that by research Come forward and apply for use of the supercomputer! ?At the conference table not far away, Yang Fenghao leaned on the back of his chair and looked at Chang Haonan, who was holding chalk and high-spirited. ?For the first time, he felt that he might be old. Its not because of how the body functions, but... The vigor that I had when I was young is gone. ?According to his idea, since the No. 10 and No. 11 projects are already advancing rapidly, it is enough for the J-8-3 to only be responsible for the high-altitude and high-speed interception missions it is good at. But Chang Haonan is obviously not satisfied with this. He hopes to optimize this aircraft in all aspects, which is essentially obsolete before it enters service. For this reason, the existing wing design will be modified extensively. To tear it down and start over again. For designers in any field, it is quite courageous to dare to say these four words. Theres a lot of work, risk and responsibility behind this. ?Yang Fenghata doesnt like risks. But this time, he was somewhat moved. ?Furthermore, from the first time he heard the name Chang Haonan to now, the other party has shown miraculous abilities many times, which is also an important bargaining chip that affects Yang Fenghata''s judgment. ?Of course, for such a serious and influential decision, you still have to ask questions clearly first. So what technical approach are you going to use to complete the integrated design of this slat-flap? (End of this chapter) Chapter 69 Supercomputer (45) Chapter 69 Supercomputer (45) ?The reason why Chang Haonan dared to say such things as tearing it down and starting over again was naturally because he was 100% sure about improving the wings. While just flipping through the design documents, he had already asked the system to start a new project. [Based on the parametric modeling of the existing wing design scheme, the differential evolution algorithm is used to conduct an integrated optimization design of the trailing edge **** and leading edge slats to reduce the number of gaps and various airflow interference effects in the lift-increasing system, and improve Lift-to-drag ratio at low speed, especially at low speed and large angle of attack] Consumption of 15 points. ? Being able to start the project in the system means that there is no problem with the idea So after hearing Yang Fenghaos question, he expressed his plan without hesitation: This requires the parametric modeling provided by the digital design group to play a role. "I plan to post-process the results of CFD flow field analysis first, extract the required performance indicators, and use them as the objective function of the entire optimization problem. Then I will use the Kriging method to select sample points to establish a surrogate model, and then combine the surrogate model with the difference Evolutionary algorithms for coupling ??The method Chang Haonan talked about is basically the same as the model reduction method he talked about when he first met Yang Fenghao at Beijing Airlines, but the specific implementation methods are different. Of course, this is not surprising. CFD flow field calculation is an ever-changing thing, and its principle is to solve the Reynolds average N-S equation. ??The remaining methods and models are all because the N-S equation does not have an analytical solution in most cases, so it is necessary to develop a numerical solution method with high accuracy and low computational cost. ?Most people with an engineering background may not have a strong theoretical foundation. These things should be solved by mathematicians and physicists. ?So looking at the derivation process that Chang Haonan densely wrote on the blackboard, most of the people in the conference room were confused. But the final conclusion can be understood by everyone. This algorithm written by Chang Haonan can greatly improve the convergence speed of the optimization algorithm, and the increase in independent variables has little impact on the amount of calculation. Thats why he dared to optimize up to six independent variables at the same time! At the same time, hearing Chang Haonan''s answer, Yang Fenghao also recalled the amazing feeling he felt when he first saw this young man. ?The other person is worth the risk. So he stood up directly from his seat: Just do it! "Xiao Chang, I will apply for you to use the Sugon 1000 supercomputer. You should complete the algorithm and related programs in the past few days. If there is any test data needed, let the entire August 3rd Project team assist you." After saying this, Yang Fenghao turned around and faced another direction: "The wing structure research team has a heavy burden this time. The leading edge **** are movable rudder surfaces and require certain modifications to the wing structure. After the overall design of Chang Haonan''s slats is finalized, Complete the layout of relevant pipelines and hydraulic mechanisms as quickly as possible to ensure that manufacturing of the slats and **** can begin as soon as possible after the improvements pass the test! "The flight control project team must also pay attention to the work of Chang Haonan. We are designing a fighter jet, not a passenger aircraft, and cannot allow pilots to manually operate the slats, so you must modify and adapt the flight control system to maximize the new capabilities. The advantage of design comes! "In addition, since it has been determined to make design modifications to Units 04 and 05, we will simply not stop working on them and optimize other parts that were previously inconvenient to change, especially the intake duct professional team. You and Lets discuss it together with the 606 Institute. There should be room for optimization in the matching of the inlet and the engine. Of course, the premise is that it does not affect the improvement of the wing. Er-engineering design team Overall design team As an experienced designer, after determining his determination, Yang Fenghao began to assign tasks to various design teams participating in the August 3rd Project in an orderly manner. Chang Haonan is undoubtedly the core role of the entire improvement plan. ?His work currently has the highest priority, and other design groups need to cooperate. I have never experienced such treatment in my previous life. After clarifying the work that each group is responsible for, Yang Fenghao slowly scanned the entire conference room: Do each group know their tasks? If you have questions, ask them now! ?His posture of standing in front of the conference table and arranging work is indeed somewhat general-like. This may be a sign of a relatively high level of [Management Ability]. "clear!" Almost everyone answered together. ??Then, Yang Fenghao once again turned his attention to Chang Haonan beside the blackboard: "Xiao Chang, during this time, I will send Yang Xia, the deputy director of the Secretariat Office, to you to assist you. The Secretariat Office of our institute is also a confidential office, so her confidentiality level is very high, and she can handle all administrative matters. She is the agent. If you need to contact the institute if you have confidential information, you can contact her through her. Obviously, this is already a very high level of attention. Mr. Yang and the comrades of the project team please rest assured and ensure that the task is completed! ?Chang Haonan also quickly expressed his stance at this time. Looking at him subconsciously standing at attention, Yang Fenghao also showed a slightly relaxed smile on his originally serious face: "Don''t put too much pressure on yourself. As far as the requirements of Project 83 are concerned, the design of the leading edge slats is the icing on the cake. You can detect in advance the problem of aileron reversal when the aircraft is loaded with bombs. For this project, it is Its already a huge contribution. ??Although Yang Fenghao himself believed that Chang Haonan was capable enough to complete this change, as the project leader, he still had to provide sufficient support in terms of psychological construction. This support varies from person to person. ?Some people are poor at self-motivation, so extra pressure must be applied to prevent them from working too hard. Some people are the complete opposite. They often intensify themselves and need to be given a relatively relaxed environment to maximize their effectiveness. ?In Yang Fenghao''s view, Chang Haonan obviously belongs to the latter. Dont worry, Mr. Yang, I have confidence in myself. ?After the meeting, the entire August 3rd Project project team started operating around the wing improvement plan proposed by Chang Haonan like a sophisticated machine. Yang Fenghata was very efficient. As the person in charge of the Eighth-Three Project, he certainly had very high privileges in resource allocation, so it only took him a few days to apply for the Dawn 1000 from the National Intelligent Computer Research and Development Center. Supercomputer usage time. Chang Haonan himself used this time to write the user-defined functions (UDF) needed for the first stage of calculation in advance through Fluent''s open user interface. When he got to the supercomputer, he only needed to compile the UDF and embed it into the shared library. , and then execute it directly. As for the further work, we need to wait until the first stage of calculation is completed before the mechanism changes. All is ready except for the opportunity. (End of this chapter) Chapter 70 Differential Evolution Algorithm (55) Chapter 70 Differential Evolution Algorithm (55) Do you want to come with me? In the computing center, Chang Haonan carefully put the hard drive containing the data into a box while asking Yao Mengna, who was processing a batch of mechanical data next to him. The latter raised her head and hesitated for a while. It could be seen that she also wanted to take the opportunity to return to the capital, but in the end she shook her head. It is true that following Chang Haonan to the computer research and development center can definitely gain something, but Yao Mengna knows very well how many pounds she has - She has learned a lot from Chang Haonan during this period, but the bottleneck is that she does not have many opportunities to try it out. Therefore, it is even more necessary to apply new knowledge down to earth. "No, I plan to stay here to help Lin Gong and the others continue to promote the matching of digital design and production and manufacturing processes. In addition, I also want to take advantage of this opportunity to optimize the entire machine of Project 83 to slightly change the canopy. " Canopy? Chang Haonan raised his head curiously. ?The other party has never disclosed such an idea before. "Yes, I looked at the photos you took in the sky and found that the traditional three-piece windshield has a very poor field of vision. Comrade test pilots in the Air Force had similar reactions, especially after installing a HUD. It was even worse. Left and right There is almost a blind spot of about 30 in front. So I was thinking if I could change the front windshield of the canopy into an overall arc type, the field of view would be much better. ?Yao Mengna nodded and took out two photos from the notebook next to her. One is for the J-8-3, and the other is for the Su-27. "I specifically consulted with Mr. Yang, and he told me thoroughly that in the No. 11 project where we introduced and domestically produced the Su-27, there is a complete set of AO120 plexiglass technologies required to manufacture an integral arc-type front windshield. As for the small batch trial production during the flight test phase, it can be completely solved by relying on the small amount of finished AO120 materials currently saved. Obviously, this is not a hot-headed decision, but a well-thought-out and proven feasibility. Chang Haonan just asked casually, and he is also happy to see that capable researchers like Yao Mengna and Lin Shikuan can solve problems alone through their learned abilities after receiving his help or guidance. Well, I wish you all the best. Same for ?. ??Yang Xia, the deputy director of the Secretariat Office assigned by Yang Fenghao to Chang Haonan, is a woman in her forties who looks very capable. ?Under her arrangement, Chang Haonan basically didnt have to worry about anything along the way. He checked into a guest house of the Chinese Academy of Sciences very smoothly, and came to the Institute of Computing Technology early the next morning. Using a supercomputer is different from an ordinary PC. You do not have to actually enter a data room filled with cabinets. In fact, it is impossible for outsiders to just go in there. ??As for directly connecting the computers brought from outside to the server physically... ?Although it is technically impossible, if you really dare to do this, you will probably be able to secure the iron rice bowl provided by the country for the rest of your life. ?The kind that you cant even think about. ??However, compared to later generations where you can directly apply for and log in to the cluster remotely, at this time only specific computers can connect to the supercomputer through xshell or ssh. "Dr. Chang, I''m waiting for you at the reception office at the door. If you have anything, you can call my pager." ?Because Yang Xia was not a technician, she did not follow him into the work area on the second floor. ?Under the guidance of the internal staff of the institute, Chang Haonan came to the door of an office with several terminal computers. ??But there was no one inside. A few minutes later, with the sound of hurried footsteps, a young woman with a bun trotted over. Huh are you Dr. Chang Haonan? The woman looked at Chang Haonan who was leaning against the wall and waiting, and asked breathlessly. Yes, I am. ?Chang Haonan nodded, and then looked directly into the office beside him. Its not that he doesnt want to say hello or say a few words. ?? But if you dont turn your head and pretend to look at the scenery, its really difficult to take your eyes away from the opponents chest that is surging from running... Sorry, Im Xu Yang, a researcher at the Institute of Computing Technology. There was a small problem in the computer room just now, so it was delayed for a while. ?This self-introduction shocked Chang Haonan and turned his attention to the other party again. Researcher of the Chinese Academy of Sciences is not a casual title, but a serious professional title. Perhaps high-level. ? And the Xu Yang in front of him looked like he could not be more than 30 years old at most. ?Twenty years later, a senior person under 30 years old may not be very rare, but this was 1996. ?Now Chang Haonan finally knows how those people who heard that he was just an undergraduate felt before. Its really so terrifying ? Xu Yang, who was opposite him, seemed to have long been used to this kind of reaction from others. After briefly introducing himself, he led Chang Haonan into the office. The task I received is to assist you in completing the entire calculation, so which part do you need my help with? I have already written the basic calculation program, but it would be better if you could help me complete part of the parallel computing development using MPI. With systematic guidance, of course Chang Haonan can write himself, but no matter how efficient he is, he is still an individual. It would be great if he could have more power. " It would be much easier if you also know programming. How do you bring the data? Tape, floppy disk or... ?Chang Haonan took out the box containing the hard drive and a calculation instruction from his backpack. ?Although he himself does not need this thing, there are other people involved in the August 3rd Project, and files need to be kept, so he still needs to write one. Huh, the hard drive is pretty good. ? Xu Yang took the hard drive, plugged in a cloth-like PATA interface data cable, and then helped Chang Haonan open another terminal. Two people can read the files in the hard disk at the same time, so they can work at the same time without affecting each other. Genetic Algorithm? Not long after opening Chang Haonan''s program, Xu Yang saw some clues. No, its another...differential evolution algorithm? Have you started using the differential evolution algorithm for optimization? ?Her tone was obviously very excited. Do you know this algorithm? Chang Haonan was also stunned. In fact, he was not even sure whether this algorithm was born in 1996. Wellactually I studied for my PhD at Berkeley. Strictly speaking, I participated in the development of this algorithm. "ah?" The shock that Xu Yang brought to Chang Haonan was probably not much different from what the latter brought to Du Yishan before. "But when my teacher originally thought of this algorithm, it was just to solve the fitting problem of Chebyshev polynomials, and it was only completely developed last year after I had graduated. This is the first time I have seen it in other countries. Application in the field, has the domestic field of intelligent optimization algorithms developed to this extent? " ?Looking at Xu Yang with a surprised face, Chang Haonan didn''t know how to answer for a moment. There should be another update for the leader later. (End of this chapter) Chapter 71 My choice to return to my country was indeed the right one (for the alliance leader fla Chapter 71 My choice to return home was indeed the right one (15 more updates for leader flankerr) Fortunately, Mr. Xu Yang still remembered his own job. He was shocked and did not continue to ask questions. Instead, he quickly devoted himself to the development of parallel computing programs after seeing Chang Haonan''s optimization ideas. Since the parametric modeling, sample point selection and establishment of the kriging surrogate model have been completed before, there is not much work left for Chang Haonan and Xu Yang to complete on site. Even so, it took the two of them almost ten hours to completely complete the development and inspection of the optimization program. After all, in addition to optimizing the five independent variables of the three-section wing itself, Chang Haonan also added a flow deflector, making it extra difficult for himself. ? ?After checking the code one last time to confirm that it was correct, Xu Yang pressed the Enter key, submitted the calculation task, then leaned back in his chair and exhaled a long breath. The next step is to wait for the results to come out, and then decide whether it is necessary to perform a separate optimization calculation on the design parameters of the flow deflector according to the situation. "Is your canteen here... still open at night?" Chang Haonan asked hesitantly, looking at the moon that had risen into the sky outside the window. From the intense work in the morning until now, he is really hungry. The big cafeteria is closed, but I can treat you to Xiaozao. Xu Yang raised his wrist and glanced at the time, then replied. You still have a small stove? Of course, at least half of us are night owls, and the canteen is packed by midnight. Xu Yang said, loosening his bun, and then arranging his hair slowly: It just so happens that I also have some questions about the differential evolution algorithm that I would like to ask you. After some time, Chang Haonan, Xu Yang and Yang Xia sat around a table in the small cafeteria of the Institute of Computing Technology. The big fan next to them was blowing wind in this direction, barely breathing in the hot summer night. Brings a bit of coolness. I must admit that this morning, I still looked down upon you too much, thinking that you just expanded the application scope of the differential evolution algorithm. Xu Yang changed into a mid-sleeve floral shirt after leaving the office area. At this time, he was stirring the noodles in the bowl in front of him with chopsticks and asked Chang Haonan: But after reading the entire calculation program and explanation, I discovered that you have actually fundamentally expanded the theoretical basis of the differential evolution algorithm. Can you tell me what you think? ?Chang Haonan did not answer immediately, but glanced at Yang Xia next to him. Since the Chinese Academy of Sciences asked Xu Yang to assist it with calculations, there must be no problem with the latter''s confidentiality level. ??But after all, there are many people in a place like the cafeteria, and he was not sure whether he could discuss the problem for a while. Xu Yang, who was on the opposite side, naturally saw the reason for Chang Haonan''s hesitation. Dont worry, I understand the rules. I will only ask about things related to algorithm theory, not your specific project. At the same time, Yang Xia also nodded slightly, saying that if the discussion was only in the theoretical category, it would not be classified, and the Institute of Computing Technology itself was also a confidential unit. After confirming that there was no problem, Chang Haonan finally spoke: "As one of the developers of the differential evolution algorithm, you should know that it mainly uses the differences between candidate solutions to generate new individuals, so it has huge advantages in global search speed and global search capabilities. My optimization process involves many Its an independent variable. It should be normal to think of this method, right? After hearing this answer, Xu Yang raised his head and glanced at Chang Haonan with a strange look. After a while, he spoke again: "Do you want to test my theoretical foundation, or do you just want to hear me praise you?" She did not give Chang Haonan time to interrupt again, but continued directly: The differential evolution algorithm is originally designed to solve continuous optimization problems, and it is an unconstrained optimization algorithm, but what you are facing is a combinatorial optimization problem with constraints. So I have been thinking today about what I would do if I were to face this problem. "My final answer is to use "subtraction" and "addition" defined based on continuous nature to calculate the difference vector. However, although this idea is barely feasible, it lacks an operation method for the characteristics of the combinatorial optimization problem, and repairs must be introduced. Operations can ensure the feasibility of candidate solutions during the evolution process. But your idea is completely different. You optimize or design three new differential optimization algorithms from the perspective of the algorithm itself. "Today I roughly understood the first one, which is based on position rather than the traditional addition and subtraction operation based on numerical values. In the crossover stage, a crossover operation based on arrangement is introduced to avoid destroying the good structural blocks formed and ensure understanding. Convergence quickly. As for the other two, I can only understand them roughly. I even dare to say that even if you show your calculation program and design instructions to my teacher, he wont be able to fully understand them in a short time. How are you, are you satisfied with my compliment? Xu Yang put his chopsticks on the edge of the bowl and looked at Chang Haonan playfully: Besides, you met me today. If someone else saw your code without a single comment, he would probably be furious. "I" ?Conscience of heaven and earth, Chang Haonan definitely did not have the two meanings that the other party thought just now. He just simply didnt know how far the intelligent algorithms had developed in 1996. Its really not convenient to explain this at the dinner table. To put it simply, my optimization of the differential evolution algorithm is divided into three stages, corresponding to three different types of engineering application scenarios. Chang Haonan smoothly mixed a clove of peeled garlic into the noodles, and then continued to explain: "The first is the first one. You have already seen some of the key points, but not all of them. To speed up the evaluation of solutions and further improve the optimization performance, I also designed a fast combination heuristic method based on the idle time increment matrix. Local search strategy As for the second algorithm, in order to improve the diversity of the PDE population, avoid unnecessary repeated searches, and jump out of local extreme values, the tabu search is combined with the permutation-based discrete differential evolution algorithm Different from when he taught fluid dynamics simulation at Beijing-Hangzhou University, Chang Haonan did not originally understand the theory of this differential evolution algorithm, but just learned it through the system, and it was limited to the three types used in the wing optimization process. , so although it is not a problem to apply it, it is indeed difficult to explain it in a simple and profound way. ??In the end, the two of them chatted until the staff in the canteen started cleaning and getting ready to get off work. Chang Haonan couldn''t fully explain it clearly, so he had to say that he would do it next time. In short, these things are difficult to explain clearly in a short period of time. If you are interested, I can write you an explanatory document on differential algorithm optimization after I return to the guest house. ?In fact, even if there was no such thing, he was going to go back and carefully sort out the content related to the differential evolution algorithm. ??Although the system will only provide knowledge directly related to the project, Chang Haonan himself is not a complete novice. He can draw inferences from one example and deepen his understanding through his own learning ability. Xu Yang on the other side seemed to be still digesting what he just heard from Chang Haonan, so he just nodded blankly, and after a while he said with some emotion: I didnt expect that in the past few years since I was studying abroad, my domestic colleagues would not only catch up with the worlds first-class theoretical level, but also be ahead of them in terms of technology application. They are far ahead! It seems that I made the right choice to return to China after graduation... ?Looking at Xu Yang, whose thinking was gradually beginning to change, Chang Haonan thought for a moment, and finally decided... Let her be. r(st)q (End of this chapter) Chapter 72 Return to Beijing Airlines (add 25 updates for leader flankerr) Chapter 72 Return to Beijing Airlines (Added 25 updates for leader flankerr) With the cooperation of two people, it only took about 20 days to complete the design optimization of the heavily modified new wing of Project 83. The final simulation results show that the improved wing can greatly improve the maneuverability of the aircraft. The position where the aileron reaction occurs when the bomb is loaded is greatly delayed. The stall angle of attack and the available overload at large angles of attack are also significantly improved. improve. Of course, the specific performance data will not be known until the wind tunnel test is completed and the new wing is built and installed on the No. 04 demonstrator for test flight. In fact, if the Eighty-three Project is simply replaced with double delta wings, then there is potential for further improvement in performance in this area. But this deviates from the original intention of the development of the J-8 model. You know, the performance of the 1471G radar that the Bayan San Project is expected to replace is almost comparable to the APG66 (V). It may even be directly replaced with the 1473 type derived from it in the future, which is the same radar of the J-10, plus It is a twin-engine heavy interceptor, so the cost is not low. With both Project 10 and Project 11 progressing smoothly, Project 83 can only be positioned as a specialized high-altitude, high-speed interceptor aircraft for the People''s Air Force. It will follow a differentiated competition route. It is not easy to build two third-generation aircraft. things. So all changes currently made must be to optimize other performance as much as possible while ensuring its high-altitude and high-speed capabilities. ??If it is turned into an aircraft with no obvious strengths and weaknesses, it will have no advantage at all compared to the future J-10 and J-11. ?Under the guidance of this idea, combined with the current level of China''s aviation industry, Chang Haonan asked himself that he was already the best in wing design. ?In addition, while waiting for the calculation results, he also completed the explanatory document he had promised Xu Yang and handed it to him on the last day before leaving the Institute of Computing Technology. Originally, Chang Haonan was supposed to follow Yang Xia back to Shengjing after finishing work here. But if we count the days, its only a few days before Beijing Hang Universitys postgraduate interview is recommended. Although based on his current achievements, even if the confidential part of the 83rd Project is excluded, he can only rely on the first grade point in the whole grade, a paper in the "Journal of Aeronautics and Astronautics", and most importantly, the 603 application. As the first person to complete advanced technological achievements, this interview is just a formality. But this cutscene still has to go. Just like more than 20 years later, a professor from Beihang University became an astronaut and had to hold group meetings and preside over students'' graduation defenses in the space station. At this time in 1996, there were not many places with Internet access. The upper limit of the Internet speed was generally 56K, and in better conditions it could reach 128K. It took a while to open the simplest web page, so online interviews and so on... Dont even think about it. Of course, considering Chang Haonan''s special situation, the college also said that if he really can''t come back, he can use a camera to record a video of a few minutes and play it on site. ?However, he himself is in the capital now. After the wing improvement is completed, there seems to be nothing special to worry about in a short period of time. ??More importantly, the very act of using video to participate in an interview has a sense of beauty that is worthless. ?So after thinking about it again and again, I decided to explain the situation to Yang Fenghata and go back to school to take care of the direct examination. Sister Xia, I want to have a phone call with General Master Yang. ??Although this call has nothing to do with the specific content of the wing improvement, it involves the schedules of him and Yang Xia, so it is safer to contact them in a confidential manner. "Telephone? But we will go back to Shengjing tomorrow or the day after tomorrow." Yang Xia looked at Chang Haonan with confusion and asked. "Well... I have something to do at my school, so I may need to stay in the capital for a few days." ??Yang Xia was assigned the task of assisting Chang Haonan, so she would not interfere with the other party''s decision. She just led the latter to an office at the Institute of Computing Technology, where there were several red phones. You can use whichever one you want, Ill wait for you outside. After finishing speaking, Yang Xia turned and left the room. Chang Haonan quickly called Yang Fenghaos office and explained the situation to the other party. Of course thats no problem. The reply over there was also very pleasant. After all, Chang Haonan is not from Institute 601, and in the past month or so, he has made great contributions to the entire August 3rd Project. ? Even just discovering wing design flaws in advance is equivalent to saving several months of time on the project. Not to mention that he directly solved this problem and even optimized the low-altitude and low-speed control problem that has troubled the J-8 for many years. In that case, Ill ask Engineer Xu Jinxu to come over and help you, and let him and Yang Xia bring the data back. Obviously, due to the importance of this data, Yang Xia cannot bring it back alone. It must be accompanied by a second person with the same secret level. ?Xu Jin is the old engineer Lin Shikuan mentioned before, and he met Chang Haonan at the first progress seminar. The arrangement was quite thorough, so the latter naturally could not have any objections. In addition, perhaps considering that after the wing design improvement work is completed, it will take some time to manufacture a new wing, Yang Fenghao even specially approved a half-month holiday so that Chang Haonan can concentrate on handling the school affairs. Have a good rest. ?Of course, if there is an emergency, you still have to make sure you are on call. ?So, the next morning, after completing the handover with Xu Jin, who had rushed to the capital after a long journey, Chang Haonan finally returned to Beijing Hang University. ?It is already mid-August, just in time for the freshman class of 1996 to register Due to military training, they arrive at school about half a month earlier than the old students. ?As a result, the school entrance was crowded with some bewildered new students as usual, as well as parents who came to see off their students. Chang Haonan finally managed to squeeze into the school after a lot of effort. Hello, classmate, do you need... Before he could recover, he heard a somewhat familiar voice. Old Wu? Chang Haonan raised his head and saw Wu Yifan standing under a parasol on the side of the road, obviously thinking that he was a new student with a suitcase in his hand. Im going, Nan Shen? ??The other party obviously recognized Chang Haonan: "Why are you here so early this year?" ??Then he immediately realized something and answered himself: "Oh, yes, you have to prepare for the postgraduate interview..." "Ahem... don''t talk about this." Chang Haonan waved his hand: "What are you doing?" Not far behind Wu Yifan, there were twenty or thirty students who looked like they were sophomores or juniors at the beginning of school. ? There are three tables placed a little further away, filled with several cardboard boxes, which look like IC phone cards, tape recorders, electric kettles and other small things. Well, Im not as capable as you. I let Academician Du decide to go to graduate school, so I can only take advantage of this opportunity to make a little money... Thats it for today, Ill continue to add more tomorrow (End of this chapter) Chapter 73 special treatment Chapter 73 Special Treatment ?Under Wu Yifan''s low-pitched explanation, Chang Haonan finally knew what medicine was being sold in the other party''s gourd. College students in this era, especially those from rural areas or small cities, are often the first in their families or even within a village to be admitted to college, so sometimes they never think of preparing some necessities for campus life in advance. The former is eyeing business opportunities in this area. On the day when freshmen registered, he directly found dozens of students from the club with average family conditions, and asked them to take the initiative to help the freshmen carry their things and take them all the way to the dormitory area, as if they were guiding them to know the way. ? Along the way, these students will, as seniors, impart some experiences of university study and life. ??Of course, the subtle advertising link is indispensable. However, both the identities of Beijing Hang University students and the experiences they teach are indeed true. In addition, there is no online shopping at this time, and people are relatively honest (good) and simple (cheating). Therefore, a considerable number of freshmen and parents are out of touch. In order to save trouble and trust, they will directly buy things they dont bring with them from these seniors. Wu Yifan is naturally the supplier behind it. ?If he is lucky, he can earn thousands of yuan in one day, and even students who are hired as coolies can earn a hundred yuan for living expenses. Quite an exaggeration. Chang Haonan smacked his lips, thinking that it was no wonder that the other party was able to earn a nine-digit net worth in the original timeline. This vision and execution ability are indeed something that ordinary people cannot learn. The two did not chat for too long. As registered students and parents gradually poured into the school, Wu Yifan and the "salesmen" he hired gradually became busy, while Chang Haonan returned to the dormitory with his suitcase. Since there is still more than half a month until the school starts for old students, Chang Haonan is the only one returning to school now. After taking a short nap to replenish the sleep he had been severely lacking during this period, Chang Haonan wandered to the vicinity of the aircraft building. The time and candidates for the postgraduate interview have been posted on the bulletin board at the door. The interview itself is conducted by the entire college together, but the final ranking is conducted separately for each major or department. As the most important college in Beijing Airlines, the total number of interviews for Aeronautical Science and Engineering is about twenty. ?Twenty years from now, a major with a similar number of people can easily support twenty graduate students. But in 1996, this number was still a bit staggering. But what is even more surprising is the selection of judges responsible for the interview this time. In addition to the old faces headed by Professor Liu Hongbo, there are also Dean Tang Lintian and two academicians! One of them is naturally Du Yishan. The other one is Liu Zhenxiang, an aviation power expert, chief engineer and first chief designer of the Gas Turbine Research Institute. ??Of course, he is also a professor at Beijing Hang University. ? If you count the time, he should have just been elected as an academician of the Academy of Engineering for successfully presiding over the SB-101 aero-engine high-altitude simulation test bed project, fulfilling his vow to "never leave the ravine until a high-altitude platform is built." He is also the first academician in the field of aviation power in my country. ?The high-altitude platform can simulate various flight conditions within the entire flight envelope of the aircraft on the ground and conduct tests on the engine and its components. It can be understood as a wind tunnel in the engine field. If there is no own high-altitude platform, the engine must be sent abroad for testing before being installed and tested for flight. In this way, the best result is that foreigners will know the performance of the engine earlier than the people who design the engine. ??If someone else secretly causes trouble and manipulates the test data for you, then you will basically never be able to figure out the engine. This is how Japan in later generations was miserably deceived by the United States. From this perspective, Liu Zhenxiang can be said to be the founder of all Chinas aviation development projects from Turbofan 6 to Turbofan 10 to Turbofan 15.?????My grass Chang Haonan looked at the notice on the bulletin board and sighed involuntarily. The Gas Turbine Research Institute and the 29 base he worked at during his lifetime were both in Mianyang, but they were not in the same unit or even in the same system. Even so, Liu Zhenxiangs name is definitely resonant. ? And unlike Du Yishan, who retired early, Liu Zhenxiang still took on some front-line work until the 2020s. I just dont know how the first flight of the turbofan 15 will go But since the high-altitude platform experiment went well, there shouldnt be a big problem. ?According to the original plan, the J-20 with the fourth-generation engine should make its first flight at the end of June 2023, but Chang Haonan came back before that time. Hey, Xiao Chang? ?Just when Chang Haonan was standing in front of the bulletin board and feeling alone, a familiar voice came from not far behind him. I was just thinking about asking your counselor Yan to find you. It was Du Yishan who just walked out of the building. Of course, Chang Haonan had notified the other party in advance of returning to school, but when most people did not have mobile phones, one could only rely on luck to find a person''s specific location. "Teacher, are you looking for me if you have something urgent?" Chang Haonan was stunned, thinking that he should have nothing else to do this time except for the postgraduate student''s recommendation to avoid the interview. Its not an urgent matter, I just wanted to tell you that Im going to change my place of residence. Du Yishan walked down the steps at the door with a smile and gestured to Chang Haonan to follow him: "This is also what Dean Tang and I want. We will give you a special room in the newly built faculty and staff residential building in the school." Staff housing? This The newly built residences in 1996 were no longer the kind of tube buildings, but the more common unit buildings later, with two or three households in each unit. The conditions were much better in comparison, but resources were very scarce, like Tang Lintian. All kinds of deans may not be allocated in the first batch. Chang Haonan was really flattered to be able to squeeze out such a place for him to live alone. "Don''t think too much. It''s just like giving you a single dormitory. Property rights cannot be given to you unless you stay in the school to teach after graduation. If you have faculty status, then there will be no problem in terms of regulations." Hearing this, Chang Haonan realized. ??This is to take advantage of the fact that he has not graduated from undergraduate degree and his net worth is not yet exaggerated, so that he can be given some benefits in advance, so that it will be more convenient to retain him in the future. ?This is like investing. The same money is invested in angel round and B round, and the equity that can be exchanged is naturally different. ?However, Du Yishan saw his great enlightenment and thought he was hesitating, so he continued: "Don''t worry too much. Ph.D. students in our school can live in single and double rooms with higher standards. Considering that the project you are participating in is too special, if you live in the doctoral student dormitory where people come and go, many The time may be inconvenient, and the college will also be worried. ?Chang Haonan looked at the bulletin board not far behind him. ??He really wanted to say that the interview for exemption has not even started yet, and he will directly handle things according to the treatment of doctoral students. Does it mean that he is personally appointed? But then I thought about it, I was already called Chang Bo Chang Bo over there in 601 Institute, so it seemed that there was no need to be more pretentious about such details. ?Furthermore, even if you dont have property rights for the time being, dividing a house is still very attractive. Okay, thank you teacher and Dean Tang. (End of this chapter) Chapter 74 Postgraduate interview Chapter 74 Postgraduate interview In the next two days, in addition to preparing some relevant materials, Chang Haonan moved some of his belongings from the dormitory to his new residence. There are some differences between interviews and defenses. For example, you dont need to prepare a lot of relevant materials in advance. You just need to answer whatever the other person asks you. The postgraduate interview is scheduled for an afternoon a week later. Since it is an interview, naturally everyone goes in one by one. ?According to the stroke order of his surname, Chang Haonan ranked quite low, so he was not in a hurry. By the time he arrived at the scene, most of the people in front of him had already finished. Not long after, the defense secretary came out and called his name. Next, Chang Haonan. ??When Chang Haonan walked into the interview room, the seven interviewing teachers adjusted their sitting postures almost at the same time. Especially the two people sitting in the middle, Liu Zhenxiang and Du Yishan. One put on the glasses that had been placed casually on the table, and the other opened a thick notebook in front of him. ?From Chang Haonan''s perspective, you can see that there are a lot of small words written densely in the book. Obviously, the purpose of the two people coming here today is very clear. The dozen or so people in front of them did not arouse the interest of these two big guys. This posture is already quite impressive. Many students perform abnormally due to nervousness after coming in. But its not a problem at all for Chang Haonan. If nothing else, the "review meeting" he experienced before going to 601 Institute more than a month ago was not bad at all. So after standing in front of the table, Chang Haonan looked as usual. Please sit down, classmate Chang Haonan. The first person to speak was Tang Lintian. ?Originally, this kind of job should have been done by Liu Hongbo and several others, but this time due to the existence of two academicians, the previous F4 interview for postgraduate research was probably not even able to get a chance to speak. ?According to the interview process, there will first be an examination of some professional knowledge, followed by the reading and translation of professional English fragments. These two parts are naturally no problem for Chang Haonan, and Liu Zhenxiang and Tang Lintian are not interested in this, so they ended hastily in less than ten minutes. The third and final link is free questioning. For most people''s postgraduate interviews, this part is basically equivalent to a chat session. The interviewer will just ask two questions, such as future research interests, and then it will be over. But Chang Haonans situation is obviously different from that of most people. This time, Liu Zhenxiang, who had been silent just now, finally spoke: "Classmate Chang Haonan, I have read the relevant technical documents submitted by the 603 Institute on ''Flutter Simulation and Active Control of Large Aspect Ratio Straight Wings'', so I have a few questions that I am interested in, and I would like to take advantage of them. Ill ask you this opportunity. I dont think its appropriate to read it, please tell me. "When conducting aero-servo-elastic modeling of the research target wing, you introduced two approximation methods in the Laplace domain for the aerodynamic matrix. The second one is based on the known reduced frequency point in the frequency domain. The corresponding aerodynamic coefficient matrix is ??used to calculate the undetermined coefficients, but this does not seem to be used in subsequent technical documents? " Liu Zhenxiang said that he had read the technical documents, and it was obviously not as simple as just flipping through them. Not only saw it, but also understood it. ??Although he is not an expert in aeronautical engineering and structural mechanics. An awesome boss is like this. He knows everything about the relevant fields. This questionI need a piece of chalk. The defense secretary quickly brought it in from outside. In fact, Chang Haonan himself has never seen the specific documents reported by 603. ?However, relying on his understanding of the model he "created", he quickly gave the answer to the question: "That''s right. The aerodynamic influence coefficient matrix Q(k, M) obtained based on the dipole grid method is a function of the reduction frequency k and the Mach number M. It belongs to the frequency domain aerodynamic force, but we want to obtain an aerodynamic servo elastic system. The state space model requires converting the aerodynamic expression from the frequency domain form to the time domain form. " "At any point in this conversion process, the two methods I introduced belong to a substitution relationship. Among them, the second one you mentioned, with the smallest error, the expression of the aerodynamic force F is F=q [Q1X(t)+Q2X\''(t)b/v+Q3X\''\''(t)b^2/v^2+E1Y1(t)+E2Y2(t)+E3Y3(t)+E4Y4(t )]. The prerequisite for minimizing the error is that the relationship between the undetermined coefficients must satisfy J/Q=k=0 ?Chang Haonan wrote a series of formulas on the blackboard, then turned back and said: "For computers, the second approximation method will have higher fitting accuracy, but since the order of the space equation will also increase, the computational burden will be heavy. Therefore, the 603 Institute chose to use the first method throughout the process. , should take into account the practical factors of calculation amount. After hearing this answer, Liu Zhenxiang nodded. To be honest, until the beginning of this interview, he was dubious about the authenticity of Chang Haonan''s ability. ?Mainly because someone in his twenties, who has not yet graduated from a bachelor''s degree, can preside over an advanced achievement in the aviation industry system as the first person to complete it. It is really... A bit outrageous. ?But now the facts are before us. Chang Haonan''s explanation is very clear. He is equivalent to giving 603 institutes two choices, one with slightly lower accuracy but less calculations, and the other with higher accuracy but more calculations. Its just that Party B finally chose the former one. There is no problem with the theoretical calculation process. ? And there are no reference materials in the whole process. I can write quickly on the blackboard after just thinking for a moment. It can only be done by people who know this model very well. Then, there is another question. Liu Zhenxiang turned the notebook to another page: "Have you ever considered applying similar models to the rotor blades of aeroengines? Many advanced foreign engines have begun to use small aspect ratio rotor blades to reduce the number of compressor stages and reduce the failure rate, but then The chattering problem has become serious again. Hmm Chang Haonan lowered his head and pondered for a moment. Logically speaking, this issue has nothing to do with his previous research. But it is related to the design issue of turbine blade sweep that he plans to study later. So I happen to have some ideas. "good" Of course, Liu Zhenxiang knew that his question was unreasonable, so after seeing Chang Haonan''s expression and posture, he closed his book and prepared to end the interview. But as soon as he said the first word, the latter raised his head again: The model constructed using the dipole grid method has poor versatility and can only be used to describe straight wings with large aspect ratios, so it certainly cannot be directly used in the field of compressor design. But I think we can try to use the energy method to perform a full three-dimensional unsteady flow calculation, obtain the unsteady average accumulated work on the blade, and judge whether stall flutter has occurred in the blade based on the sign of the total accumulated work..." The first order data can only be seen at noon, so the update will be in the afternoon as usual. (End of this chapter) Chapter 75 It’s really straight this time (Added 3 updates for leader flankerr Chapter 75 is really straightforward this time (Added update 35 for leader flankerr) ?This question originally came to Liu Zhenxiang''s mind, and Chang Haonan himself was only in the brainstorming stage, so the two of them just conducted a qualitative analysis in a few words and ended the topic. ?As far as postgraduate interviews are concerned, they have been taking a bit long. Liu Zhenxiang re-closed the notebook in front of him with satisfaction: "Although the idea you just mentioned is not perfect yet, I am very optimistic about this direction. The Turbine Research Institute is currently studying the analysis method and evaluation basis of rotor blade flutter. You know, the equipment there is all newly passed. Acceptance, if..." Ahem Cough cough cough ?Only halfway through his words, he was interrupted by Du Yishan and Tang Lintian coughing almost simultaneously. Are you kidding me? They just used a loaned housing quota to give them a sweet spot the day before yesterday. Now you, 624 House, are going to directly poach people? Want some face? At this point in the interview, there is no need to continue. Originally, the interview process for the insurance graduate program is more of a formality. As long as there are no big surprises, interview scores will be based on the average score of the required courses. The reason why there was such a big battle this time was because Du Yishan applied for Chang Haonan to directly study for a doctorate. On the other hand, Liu Zhenxiang, who had just returned to Beijing Airlines from Sichuan Province, was very interested when he heard that there was such a student. I expressed interest that I must come and take a look. He said he wanted to take a look, but in reality, as the dean, Tang Lin didn''t know. But the latter''s status was far different from that of Liu Zhenxiang, so he gave Du Yishan, who was also an academician, Pull them over to prevent others from poaching the good seedlings. Just put together a ProPlus version of the interview review team with a total of 7 people. "Okay, the interview is over here. Go back and wait for the announcement." Tang Lintian put down the pen in his hand and waved to Chang Haonan, indicating that he could leave. Chang Haonan thanked him and was about to turn around and leave when he was stopped by Du Yishan from behind. "By the way, when this is over, I guess...30 minutes later, you can come to my office." Lao Du, Bole did a good job. Looking at Chang Haonan closing the door and leaving, Liu Zhenxiang signaled the defense secretary not to call the next person, but unscrewed the lid of the thermos cup next to him and said to Du Yishan next to him. It is definitely a blessing for the country to have such a talent and to use it for oneself. Bole is not me, this student was discovered by Hong Bo and recommended to me. ?Du Yishan smoothed his silver hair and pointed at Liu Hongbo who was immersed in writing comments next to him. He was obviously in a good mood. Liu Hongbo, who was immersed in writing a review, paused when he heard this sentence. What? recommend? ??There is probably still a huge gap between this statement and the actual situation. Its obviously you who always snatched people away from me, right? And in front of me, the rightful owner. ~tui Recommended to you? ?Just when Liu Hongbo couldn''t help but criticize his teacher, Liu Zhenxiang, who was sitting on the other side, praised him: "Young people have good vision and awareness." An invisible sharp knife penetrated Liu Hongbo''s heart. ??But no matter what, he definitely couldn''t continue to pretend to be an outsider, so he had to raise his head and showed an expression that seemed to be crying and laughing: "Academician Liu, thank you very much. If I had to train a student like Chang Haonan myself, I would probably have a hard time, so I thought of introducing him to the teacher." How could Liu Zhenxiang not guess this when he looked at Liu Hongbo''s expression? The whole story behind this, while secretly thinking that this old friend of his was indeed playing dirty tricks, he continued: Xiao Liu, dont feel aggrieved about this matter. As you just said, it will be very difficult for you to train a student like Chang Haonan. Actually, this statement is not accurate. Even Lao Du and I would have a hard time cultivating such a student. What he needs is not training, but opportunities. Lao Du can provide a larger platform for him to exercise and display himself. In this regard, you will definitely not be able to do it. In the end, this kind of genius will only be buried. While speaking, Liu Zhenxiang glanced at Du Yishan next to him, and suddenly felt that he should consider taking a back seat and start focusing on cultivating students. Of course, the latter also noticed the look directed at him. Heh, just jealous. "Okay, let the next student come in. Let''s finish quickly. Don''t let Xiao Chang wait too long." ?Du Yishan waved his hand to indicate that the topic should be suspended for now, and then said to the defense secretary next to him. After Chang Haonans defense, the subsequent defense process will naturally be much faster. ?So it only took about twenty minutes to get it all done. As for the results, there is no doubt about it. ?Du Yishan found the one belonging to Chang Haonan from a pile of interview transcripts, and handed it to Tang Lintian: As for the matter of directly studying for a doctorate, Ill leave it to Dean Tang. Dont worry, Ill take care of it. Tang Lintian put the transcript into his briefcase and glanced at the calculation process that Chang Haonan left on the blackboard next to him: Actually, if he could produce such results three months earlier, he could consider applying for graduation early this year. "Heh..." Du Yishan chuckled beside him: "I don''t know who was so coy and unwilling to help when I said I wanted him to directly attack the doctor?" "This..." A trace of embarrassment flashed across Tang Lintian''s face: "I was very ignorant at that time, how could I have seen such a student..." The atmosphere in the conference room instantly became relaxed and cheerful. On the other side, Chang Haonan, who had finished the interview, met Zhou Shuwan on the stairs to Du Yishan''s office. ??The latter was also a member of the postgraduate interview, so naturally he came to the school in advance. ??However, his expression was not very good. Considering that Zhang''s name was seven strokes and Zhou''s was eight strokes, he probably met Zhang Man again when he was just waiting for the interview. Haonan, have you finished the interview too? Yes, Academician Du asked me to wait for him in his office. Chang Haonan quickened his pace and the two of them walked up the stairs together. So you have been working on projects in school during this period? ?Although Zhou Shuwans father also works in the 601 Institute, he seems to be participating in the concurrent J-8IIACT project, so he may not have met Chang Haonan. Besides, such military-related projects are confidential, and even his own son cannot talk nonsense about them. So it is normal for Zhou Shuwan to know nothing about this. Yes, a passenger aircraft project over there at the 603 Institute. Chang Haonan nodded. The MA60 model is not sensitive, and he was indeed involved. After all, even the advanced results reported by 603 had his name on it. ??Except for special projects such as nuclear weapons, participants in most classified projects cannot always remain isolated from the world, so half-truths and half-falsehoods are the correct posture for confidentiality. Otherwise, if a person obviously works in the aviation department but remains silent about the projects he is working on, then even a fool can guess what you are doing. I found that I dont know how to read the first subscription... So Ill update the alliance leaders first, and ask the editor tomorrow... (End of this chapter) Chapter 76 Pay attention to the engine (additional update for leader flankerr Chapter 76: Pay attention to the engine (added update 45 for leader flankerr) After parting ways with Zhou Shuwan, Chang Haonan didn''t wait too long when he saw Du Yishan and Liu Zhenxiang coming from the stairs carrying something. The three of them walked into Du Yishan''s office together. Xiao Chang, I heard Yang Fenghao tell me two days ago that you helped them identify a hidden danger in the overall design just over a month ago? The two academicians are both people within the aviation system, and have directly or indirectly participated in the 83rd Project, so they can naturally talk about this issue. Yes, its about the efficiency of rudder control. Chang Haonan nodded: But its not difficult to solve. This is his contribution in an upright manner, and there is nothing to be ashamed of. "Isn''t it difficult to solve?" Du Yishan and Liu Zhenxiang looked at each other: "I heard that the 601 Institute has revised the overall design once, and is even preparing to build a new full-state prototype for this purpose. This news is Not small." Oh, this is because Senior Sister Yao and I made some other modifications to the aircraft, especially to improve the aircrafts large elevation angle operation performance at subsonic speeds..." Chang Haonan then spent a few minutes briefly explaining the work he had done at the Institute of Computing Technology of the Chinese Academy of Sciences in the past twenty days. After listening, Du Yishan looked at Chang Haonan sitting on the sofa opposite and fell into silence. Even though he has a lot of life experience, he still doesnt know what to say when faced with this situation. ?He suddenly felt that language was such a weak thing that he could only express his current mood through silence. ?In the past, the progress of program improvements like this was basically measured in years, or at least in months. But since accepting a student like Chang Haonan, the unit "tian" seems to have become more common. Even occasionally you can see the hour count... "well" "well" Two almost identical sighs sounded at the same time. Du Yishan glanced at Liu Zhenxiang, and it could be seen from the latter''s expression and eyes that he had the same idea as him. "The waves behind the Yangtze River push the waves ahead..." ?But this sadness only lasted for a moment. Both of them knew very well that at their age, no matter how high their hats were, they were already at the end of their scientific research careers. The future must belong to young people like Chang Haonan. When young people are strong, the country will be strong! After a long period of silence, Du Yishan finally spoke again, but this time it was a different topic: Xiao Chang, from your perspective, do you think the August 3rd Project can make breakthrough progress before the end of this year? Breakthrough progress Chang Haonan is keenly aware that this problem is unusual. ?So he did not choose to answer immediately, but thought about the general situation of the entire August 3rd Project - not only what he knew now, but also what he knew in his previous life. Neither of the two academicians bothered him. A few minutes later, Chang Haonan raised his head again: I think if we just talk about the J-8-3 aircraft, we should be able to make a relatively optimistic progress this year. In fact, the design of the Eighty-Three Project is already very complete, and the only risk lies in the imperfect turbojet 14 engine. "Although the test flight progress of the full-state prototype has been delayed to a certain extent due to the major modification of the wing, through my previous work, I have basically figured out the situation of this aircraft, which can be fully solved through calculation and simulation. Obtain more precise test flight conditions and improve test flight efficiency. "Considering that there are still more than four months until the end of the year, it may still be difficult to finalize the design, but it should not be a problem to complete the test flights of the main subjects." After listening to Chang Haonan''s analysis, Du Yishan raised his hand and touched it. Touching his temples: You just said about the J-8-3 aircraft, do you mean that you think there will be problems with other parts? Well...then its naturally an airborne weapon. Chang Haonan thought for a moment and replied: "I heard from comrades in the 601 Institute that the progress of imitating the Thunderbolt 11 is not optimistic, and the number of Aspad imported from Italy is very small. If this is the case, even if we have a new fighter jet, we will still face problems. Organic and inelastic situation. The field of airborne weapons and ammunition is an almost completely unfamiliar part to him. Although everything is possible with the system, his energy is limited after all, and it may be difficult to spare in the remaining more than 100 days of this year. Take the time to think about air-to-air missiles. Is this what you think? Thats right. Chang Haonans tone was full of confidence. At this time, Liu Zhenxiang, who had been listening silently just now, suddenly interrupted: Regarding the situation of Turbojet 14, Xiao Chang, you can do more snacking after you go back to 601 this time. "Appreciate further details." ?Chang Haonan cheered up instantly. As a leading figure in the field of aviation development in my country, although Liu Zhenxiang has not directly participated in the turbojet 14 project, his judgment is obviously very valuable. In this matter, the progress of my work is a bit slow. Liu Zhenxiangs tone contained a hint of self-blame: "When the turbojet 14 was being designed overall, the high-altitude platform at the Turbine Research Institute was still in the development stage and its functions were not perfect, so there was no condition for comprehensive ground testing, especially in the absence of complex air intake conditions at high Mach numbers. " Although the turbojet 14 has not had any very serious accidents on the J-8-3 in recent years, neither we nor the 606th Institute are still relieved. "I heard Lao Du say before that you have also done some research in the field of flow channel simulation of impeller machinery. Originally, even developed countries in Europe and the United States highly rely on testing and experience in this regard, but I think if you come here If you do, you might find something. Obviously, Chang Haonans previous brilliant experience in the MA-60 and 83 projects gave Liu Zhenxiang full confidence in him. Is that so? ?After listening to Liu Zhenxiang''s explanation of the ins and outs, Chang Haonan immediately felt a little unable to sit still. Teacher, Im going back to Shengjing early tomorrow morning! ?Originally, he chose to go back to Beijing Airlines to rest for a few days. The main reason was that he felt that there was nothing urgent to do in the future. But now that he has a goal, it is not appropriate to stay in the capital anymore. Okay, Ill prepare a ticket for you tomorrow. ?Du Yishan nodded. When he heard Liu Zhenxiang talk about the engine problem just now, he knew what his student would do next. After saying that, he stood up and walked to a cabinet in the corner of the office. He opened the cabinet door and took out a brand new black computer bag and handed it to Chang Haonan: This was purchased from abroad some time ago. It is the latest model this year. Consider it an undergraduate graduation gift from me, the teacher, in advance. ?Chang Haonan unzipped a corner of his computer bag and looked down. ThinkPad560. The pioneer of portable thin and light notebooks. Of course, this is all from the perspective of 1996. The weight of 1.9kg and the thickness of 3cm are quite exaggerated in this era. ??If this was another gift, Chang Haonan might choose to refuse. But he really needs a laptop of his own. Then thank you, teacher. It doesnt matter. If you can use it to make more contributions to scientific research, that will be the best thank you to me. (End of this chapter) Chapter 77 Sliding test (55 added for leader flankerr) Chapter 77 Sliding Test (Update 55 for leader flankerr) ?Chang Haonans flight was still scheduled for the next morning. Its still the same Tu 154M. ??Its just that this time he was alone, and his luggage included an extra computer bag than last time. Almost at the same time that he was about to leave school. On the outskirts of Shengjing, on the tarmac of Beiling Airport, personnel from the 601st Flight Test Station and the Air Force Maintenance Team were surrounding the No. 04 prototype that had just been pulled out of the assembly plant, checking the technical status of the aircraft. Test pilot Fu Guoxiang was sitting in the cabin, making final preparations before the flight. ?After downgrading Unit 03 to a non-full prototype and sending it to Yanliang, Factory 112 and Institute 601 established a "Youth Commando Team" to prepare for the upgrade of Unit 04 in three shifts. Finally, after receiving Chang Haonan''s calculation results, it took only one week to complete the production and replacement of the new wing. Of course, although the No. 04 aircraft has not changed much except for the wings, it was returned to the factory for major surgery after all. Therefore, according to Yang Fenghata''s requirements, all pre-flight inspections must be based on the new ones. Model standard to complete. In other words, Unit 04 is about to make its second first flight. However, according to Yang Fenghata''s arrangement, the aircraft will not actually take off this morning, but will first conduct three rounds of ground taxiing tests. ?This is also a treatment that only a brand-new model of aircraft can have. This plane deserves his caution. The more important reason is that Yang Fenghao received a call from Du Yishan yesterday, saying that Chang Haonan decided to return to Shengjing today. After thinking about it, he finally decided to put the official test flight in the afternoon. After all, Chang Haonan is the proposer and most important executor of this improvement plan, so it is appropriate for him to be a witness. In fact, Yang Fenghata initially estimated that the modification work on the No. 04 prototype would take about two weeks, so he had just approved half a month''s leave with a stroke of a pen, thinking that he would be able to catch up when Chang Haonan came back. Test flight. It''s just that the efficiency of the youth commando team was beyond his imagination. ? What is extremely coincidental is that Chang Haonan chose to return to No. 601 School early after only one week of rest without knowing anything about these circumstances. "Perhaps this is the bond of fate?" Yang Fenghao thought to himself as he looked at the yellow-skinned No. 04 prototype not far away. ?At this moment, deputy chief designer Liu Ming came from a distance and interrupted his thoughts. Mr. Yang, all preparations before taxiing have been completed and everything went well. Do you want to start testing? ?Yang Fenghao habitually raised his wrist and glanced at the time. Even though he knew that there was actually a time on the flight test station that was several orders of magnitude more accurate than his own mechanical watch, this habit had been maintained for many years. Lets get started, lets go to the tower. ?Following Yang Fenghata''s order, the testers and equipment that had just surrounded the No. 04 prototype began to evacuate, leaving only the power supply vehicle and air source vehicle needed to start the engine. Fu Guoxiang in the cockpit heard the instructions from the radio at the same time. He closed the hatch, moved his neck slightly, then put on an oxygen mask, started the two engines with the help of external power supply, and pushed Throttle the valve and allow the rpm to stabilize at 20%. ? This is not the first time Fu Guoxiang has driven the J8-3. He was even responsible for the last first flight of the No. 04 prototype, so all this is familiar to him. According to the test flight process, the first part of the taxiing and rolling experiments is to test the stability and maneuverability of the aircraft''s ground motion at speeds of 20 and 55km/h respectively, corresponding to branch line taxiing and turning under normal conditions and crowded apron. gliding in state. The second stage is to test the aircraft''s deflection correction ability under medium speed taxiing at speeds of 80 and 160km/h. Fu Guoxiang, who was familiar with the road, completed all the subjects in the two tests in a short time, and everything went smoothly. Then comes the third step, high-speed taxiing, testing the performance of the aircraft''s relevant rudder surfaces at 240-320km/h, approaching take-off speed, and the balance of the aircraft when the front wheel is raised. Ordinarily, if this was really a brand new model, it would be impossible to complete these three links of testing in one day. ?However, the new model is not a new model after all, and many common minor problems with new machines do not exist on this prototype. Careful inspection before the test flight is to ensure that nothing goes wrong, but once the test flight process is entered, efficiency issues must be taken into consideration. At the end of the runway, Fu Guoxiang finally pushed the engine speed to 50% and released the brakes. The number displayed below the speedometer keeps getting bigger amidst the roar of the engine. ?Before conducting this test flight, someone had told him that the improved aircraft''s takeoff and landing performance would be better, so Fu Guoxiang controlled the attitude and speed of the aircraft very carefully. But the actual situation far exceeded his expectations. ?When the taxiing distance was close to 700 meters, it was obvious that the aircraft had a very obvious tendency to lift off the ground. Fu Guoxiang then gently pulled the control lever to prepare for the wheel-lifting test. Suddenly, he felt a very brief cycle of overweight and weightlessness. Obviously, at that moment, his entire plane should have left the runway for an instant, and then was pushed back by his belt lever like muscle memory. Fortunately, his test flight experience and skills were very good, so he did not make an early first flight. The main reason is that the sensors required for taxiing tests are different from those required for flight tests. Even if we fly up now, we cannot get complete data. The takeoff distance of this plane is about 100 meters shorter than before. Fu Guoxiang quickly made a judgment and reported the situation to the control tower. At the same time, Yang Fenghata, who had been waiting here since just now, also put down the telescope in his hand. Previous wind tunnel tests have shown that if other parts remain unchanged and only new wings are installed, the take-off speed of the aircraft without combat load can be reduced by about 12% from nearly 400km/h to about 350km/h. level, the take-off distance will also be reduced accordingly. ?Although it is still incomparable with third-generation aircraft, considering the design of an interceptor aircraft, the 12% improvement is already quite exaggerated. After all, such changes are achieved without affecting the high-altitude and high-speed performance of the aircraft at all. ?Many comrades did not even dare to believe this result, so they slightly lowered their psychological expectations at the discussion meeting before the first flight. However, according to what the pilots just reported, the actual performance improvement of the aircraft is even better than the wind tunnel test results! ?Yang Fenghata smacked his lips and looked out the window at the No. 04 prototype that had finished testing and was taxiing to the tarmac. ??If we just talk about the indicator of takeoff speed, it is not actually the core performance of an aircraft. But it can reflect the lift level of the wing from the side, as well as the low-speed maneuverability that is very important for a fighter jet. He cant wait to see the data from the official test flight in the afternoon. Three chapters of the three helmsmen will be added tomorrow. If you ask the editor tomorrow and the first order is 2,500, then the day after tomorrow will continue to add 10,000. (End of this chapter) Chapter 78 J-83, its second maiden flight! Chapter 78 J-8-3, its second first flight! ??Yang Fenghata and others are not the only ones paying attention to this test flight. In another assembly workshop of Factory 112, technicians Artyom Trusov and Alexander Mosin from the Sukhoi Design Bureau are assisting their Chinese counterparts in the final pre-factory verification of the J-8IIACT stabilization verification machine. . ?While resting near the door of the factory building, they naturally witnessed the entire process of the sliding test. The aircraft test flight itself is actually nothing worth keeping secret. The main reason is that it is such a big airplane, and the turbojet engine is so noisy that it really cant hide anything. Not to mention the people working in Factory 112, even ordinary people living around can see them casually. The real secret is the detailed data obtained from the test flight. In fact, the fact that these two Sukhoi engineers were able to take a break at exactly this time, and to rest for several hours at a time, was simply specially arranged by Yang Fenghao. There is not only a morning session, but also an afternoon session later - What we want is for them to see the first flight of the No. 04 prototype! ?At noon that day, Tu 154M landed at Taoxian International Airport, and Chang Haonan got into the familiar 212 jeep again. Only this time, the car did not go to No. 601 Hospital, but directly sent him to Beiling Airport. ? Then Chang Haonan, who had not yet recovered, saw the No. 04 prototype ready to go on the tarmac in the distance, and he was so shocked that he almost exploded. I c...detian, have you already changed it? You must know that prototype production is different from entering the mass production stage. Because the production has not yet been finalized, the efficiency is generally much lower. It can be seen that Institute 601 and Factory 112 are definitely fighting for their lives for this matter. During this period, all the departments in the institute have never turned off the lights. Wearing a blue overalls, Yao Mengna stood at the door of the jeep and said, probably because she was going to the workshop, her long hair was hidden in a hat. "Come with me, the first flight ceremony is waiting for you." Yang Fenghao directly opened the co-pilot''s door and sat on it: "This is your wing. You should witness its first takeoff with your own eyes." As for the accidental lift off the ground in the morning, the latter was certainly not prepared to talk about it. Chang Haonans original intention of coming back early was to verify whether there were any problems with the design of the turbojet 14, but after all, he was not willing to miss the first flight of the new J-8-3. ?Yao Mengna also got into the back seat on the other side, and the jeep sped towards the tower. ?When passing near the No. 04 prototype, Chang Haonan signaled the driver to slow down and specifically stuck his head out to pay attention to its wings. He wants to keep this shape in his mind This is the first project he has actually designed after his rebirth. In the past, whether it was the J-7F or the MA-60, although he played an important and even core role in both, he still could not be called "in charge of the design." But this new wing can. Twenty minutes later, everything was ready and the real first flight was about to begin. The test pilot is of course Fu Guoxiang. ?Under his control, the aircraft taxied to the ready-to-fly position at the end of the runway with ease. With this mornings experience, he has basically figured out the taxiing and take-off performance of this aircraft. ?Hence, after receiving the takeoff order, Fu Guoxiang did not choose a conservative long-distance taxi as usual for the first flight of a model. Instead, he directly pushed the throttle valve to maintain the engine speed at a higher level than in the morning. A faint orange-red high-temperature gas gradually appeared at the tail nozzles of the two turbojet 14 engines, and the air behind the aircraft also experienced optical distortion due to the sudden increase in temperature. ?After confirming that the speed was stable, Fu Guoxiang released the brakes. The aircraft instantly appeared in a slightly lowered nose attitude and began to accelerate and taxi on the runway. After gliding about 500 meters, Prototype No. 04 lifted up almost directly in front of the tower with a light gesture, straight into the sky! This distance Yang Fenghao, who was in the highest row of the tower, stretched out his palms flat on his forehead to block the sun. Although his telescope was in the hands of Chang Haonan next to him, he could still clearly see the rolling distance used for this test flight. It was much shorter than the one in the morning. "About 600 meters?" Chang Haonan temporarily put down the telescope in his hand. Absolutely, its shortened by more than 10% compared to before the improvement. Yang Fenghao was still a little excited: "We discovered during the wind tunnel test that the shape of the trailing edge of your slats should be optimized, and the resistance it brings when starting is very small. Now it seems that the actual situation should be even better than the wind tunnel results. ?This time Chang Haonan just smiled and did not answer. In fact, in the total design cycle of about 20 days, he spent almost half of the time optimizing this part. The biggest problem of leading edge slats compared to leading edge **** is that the induced drag during startup is relatively large. ??It would be fine if this aircraft had great flying capabilities, but the thrust of the turbojet 14 is not good at low altitude and low speed, so the drag should be reduced as much as possible. ?At the same time, Fu Guoxiang, who was preparing to fly around the field in the cockpit, had also discovered that this improved version of the aircraft was significantly different from the previous one. He has flown almost every improved model of the J-8, from the earliest J-8 Bai to the J-8-2 with air intakes on both sides to the current J-8-3. But each of the previous ones will become very difficult to control when the speed drops below 400km/h. In fact, the lift coefficient and available angle of attack of the aircraft are not ideal. ? ? Pushing the stick a little will cause it to drop due to insufficient lift, and pulling the stick will cause the angle of attack to be too high, leading to a more dangerous stall or even spin. ?There is only an extremely narrow operating range that can maintain the aircraft in a controllable level flight state. If you encounter another external airflow interference... ?Then this interval is likely to disappear directly. So in the past, after taking off an airplane, one would increase the speed of the airplane to at least 450km/h as soon as possible to reduce the risk of maneuvering the airplane. But the feeling today is completely different. At speeds of 350-400km/h after takeoff, the aircraft''s control efficiency and flexibility far exceeded his expectations. The stick movements he was accustomed to before almost scared him, who had experienced many battles. Fu Guoxiang can feel very clearly that 350km/h is definitely not the limit of this aircraft. ?According to general custom, the first flight of an aircraft model usually does not even retract the landing gear, and the flight time is basically about 15-20 minutes. ?However, the situation of No. 04 is different after all. In addition to flying around and passing through the field, this test flight was also arranged to conduct several tasks to test the available overload under different angles of attack. Obviously the R&D team has great confidence in the aircraft. ?So Fu Guoxiang finally decided to request a lower-speed pass from the test flight station. After a few seconds of silence, a reply came over the radio. Approval is requested, but the passing speed shall not be less than 285km/h. (End of this chapter) Chapter 79 Stronger than Mirage 2000! Chapter 79 is stronger than Phantom 2000! Fu Guoxiang subconsciously held his breath. This is a speed that the old model J-8 could not even imagine. In the past, it had only tried it when it was flying stall performance. ?However, for the current aircraft, since the test flight station allows him to try it in the first test flight, it means that this speed is still relatively conservative. "receive." Soon, everyone presentincluding of course the two Sukhoi engineers who were watching the excitement from a distancewitnessed the No. 04 demonstrator performing a low-altitude pass with an angle of attack at an extremely low speed. ?After the roar of the engine gradually faded away again, the human voice that had just been covered up suddenly started to boil again. At that speed just now, why do I feel that...it may not even be able to reach 350? 350? ?Perhaps because the engine sound just now was too deafening, everyone who had not yet recovered subconsciously raised their voices a lot: How can there be 350? This is definitely not even 300, and it is flying smoothly without any feeling of struggle! Its not just the speed. Did you just notice the attitude of the aircraft? It maintained a controllable angle of attack of at least 15 while passing through the field. We are all engineers of 601, and we all have a good idea of ??the maneuverability of the J-8 at low speeds in the past. It can theoretically fly at a speed of 300km/h, but the aircraft in that state will be visibly unstable and extremely dangerous. How could it be possible to look as calm and leisurely as just now? This performance...is a bit outrageous. Dont be anxious, this is not really the first flight after all. There should be other test flight projects. After the test flight is over, lets see how much the overall performance can be improved! For fixed-wing aircraft, it is certainly a big problem to fly fast, but if you really want to fly slowly, the difficulty is not much easier. It is even more difficult to maintain effective control of the aircraft at extreme speeds such as very fast or very slow, and even ensure a certain degree of maneuverability to cope with air combat. Especially for a second-generation fighter, it is a matter of trade-offs. Didnt you see that in order to allow the aircraft to have both high-speed and low-speed performance, the United States, the Soviet Union and other countries all chose an extremely complex variable sweep wing structure at a certain period, which resulted in a certain degree of loss at the expense of huge dead weight and reliability. Take care of both. It was not until the third-generation fighter jets represented by the F15 and Su-27 that a more acceptable balance point was found. As a second-generation aircraft, the J-8-3 cannot fully achieve the level of a third-generation aircraft, but judging from today''s performance, it is absolutely not a problem to say that the overall flight performance is that of a 2.75-generation aircraft. ?Yang Fenghao, who was standing in front of the window, did not speak. He just patted Chang Haonan on the shoulder and shook the latter''s body heavily. it is more than words. ?Compared to Yang Fenghata who was simply surprised by the performance of this aircraft, the reborn Chang Haonan had completely different feelings when faced with the scene of the J-8 passing through the field at low altitude. The low-altitude and low-speed performance of the J-8 was a difficult problem for any Chinese aviation person or even any Chinese military fan in the original timeline. The collision in 2001 left too many regrets that can never be made up for. "Now, our aircraft should no longer have such defects..." Chang Haonan looked at the horizon outside the window, the corners of his eyes slightly moist. At this time, Yao Mengna, who was standing on the other side, just turned her head. As Chang Haonan said to Du Yishan and Liu Zhenxiang on Beijing Airlines yesterday, with his help, the progress of the test flight process can be greatly accelerated. ?This is one of the reasons why Yang Fenghao dared to directly arrange complex subjects for Fu Guoxiang in this test flight. ? In short, this first flight, which was not considered the first flight, lasted nearly an hour and ended smoothly with a puff of smoke rising when the rear wheel of the No. 04 prototype touched the runway. Lets go to the tarmac! The flight test data will naturally be collected and processed by the personnel at the flight test station. The most important thing right now is to welcome the test pilots on their triumphant return. ?Ten minutes later, Prototype No. 04 slowly stopped at the designated area on the apron. Fu Guoxiang turned off the engine, waited for the canopy to be opened, and then waited for the ground crew to move the boarding ladder. In the process, he had already seen the crowds of people coming from a distance. Even though it was not the first time for most members of the 83 Project to experience the first flight of an aircraft, everyone was still extremely excited when they saw Fu Guoxiang who had just climbed out of the cockpit. On the one hand, the performance of this improved aircraft is really good and somewhat unexpected. Many people did not dare to believe the data blown out of the wind tunnel last night. But after the test flight, although the detailed data has not yet been compiled, at least in terms of stall speed and take-off distance, it is visible to the naked eye that it is better than the wind tunnel results. This is a rare situation. On the other hand, the improvements were made a little too quickly for everyone involved. From proposing improvement ideas to finalizing plans to manufacturing, final assembly and first flight. It only takes a little over a month in total. And this is not a small change, including the new wing designed by Chang Haonan, the canopy designed by Yao Mengna, and a series of upgrades in avionics and cockpit human-machine functions. What is the concept? In the past, this level of improvement would have taken less than a year to complete the process. So even though each process has been checked and confirmed many times, everyone just... I feel a little unsure. A bouquet of flowers was delivered to Fu Guoxiang''s hands. Since this is not a new model after all, there are no leaders at the scene. Chief designer Yang Fenghao and Chang Haonan, who led this improvement, hugged him respectively in the center of the crowd. How does the plane feel? ?Yang Fenghata asked. In matters such as test flights, data is only one aspect. The pilots subjective feelings are actually also very important. The first words Fu Guoxiang spoke shocked everyone around him. Much better than the Phantom 2000! You must know that Fu Guoxiang once went to France for training and exchanges, and he actually flew the Mirage 2000. What he said was quite convincing. ?Of course, the Mirage 2000 is still a quasi-third-generation fighter based on the second-generation fighter and redesigned according to the standards of the third-generation fighter. But compared with typical second-generation aircraft such as the F4 or MiG-21, it is still very different. You know, about ten years ago, the Chinese Air Force even considered introducing the Mirage 2000B/C. Now, our new aircraft has already surpassed us even in areas where it is relatively weak. Considering that the Frenchs latest fighter jet Rafale has not yet officially entered service at this time The same thought appeared in the minds of many people present: ??The fighter jets of the Chinese Air Force may soon no longer be the weakest among the Wuchang. Additional update as usual in the afternoon (End of this chapter) Chapter 80 Sukhoi Company’s decision (forever F4U for the helmsman) Chapter 80 Sukhoi Companys Decision (Additional update for the helmsmans eternal F4U) In addition to the greatly improved low-altitude and low-speed maneuverability, Fu Guoxiang also spoke highly of the aircraft''s new cockpit. Especially the integrated front windshield. ?This made Yao Mengna, who had been silent beside her just now, also very happy. After a long time, the crowd surrounding Prototype 04 gradually dispersed, preparing to return to their jobs. ?Yang Fenghata called one of his secretaries from the side: Let the canteen prepare a few more dishes and lets celebrate a little tonight, especially for Comrade Xiao Chang! Theres no need to drink. We have to analyze the test flight data in the evening. We may have a meeting tomorrow. Well wait until the aircraft design is finalized. ?Chang Haonan walked at the end of the team and took a look at the current situation of the system. Research Points: 120 Theoretical level: LV2 (0/10000) Engineering experience: LV1 (370/1000) Management ability: LV1 (100/1000) Comprehensive ability: LV1 Projects in progress: 0 Projects that can be carried out: 1] Unsurprisingly, this is his biggest gain since his rebirth. 50 scientific research points, 300 engineering experience points, and 135 management ability points. ?Chang Haonan is temporarily unable to perceive the effect of improving his management ability by one level, but the increase in scientific research points is real. Especially when he is about to verify the overall design of the turbojet 14. While there was a lot of joy here, the two Sukhoi engineers who were specially arranged to "accidentally" witness the entire first flight process were obviously thinking about more. Artyom, did you see the low-altitude pass that the plane just made? Mosin leaned against a wall and gently touched his beard: How fast do you think it was? "I know what you mean." Trusov did not waste time to answer the question directly, but answered directly: "Although it is not clear what kind of changes they have made, the performance of this new aircraft is obviously better than It was much stronger before. The two Russians certainly have no way of knowing the ins and outs of the modifications to the wing design. In addition, the entire posture created by Yang Fenghata looked like the first flight of a new model, so none of them thought that the aircraft was actually just modified from the previous prototype, and they all thought that the 601 Institute had tinkered with it. new model. Although this type of aircraft was designed by them themselves, it is indeed somewhat similar to our Su-15. ? Mosin is older than Trusov. He participated in the later improvements of the Su-15 aircraft: "In the 1980s, we installed double delta wings on many Su-15TMs, which greatly improved the aircraft''s maneuverability. However, when the aircraft just flew over our heads, we could see that it still retained the large "Delta Wing." If there are no big changes in the overall design, it should be that they have adopted some lifting technology. We are too far away to see the details clearly. ??Trusov shrugged, and then looked at his old friend next to him with wary eyes: "Don''t you want to take a closer look? I don''t want to cause trouble." ?Although two people were hired to improve the technology of the J-8IIACT, other models were naturally kept secret from them. Do you think Im stupid... Besides, no matter how much improvements are made to this aircraft, its still a second-generation aircraft, and theres nothing worth seeing. Mosin shook his head decisively: What Im thinking is, are they sending a signal by flying a new model with significantly improved performance at this time? ?Trousov on the side obviously doesnt want to think too much about these things: "How about reporting this matter to the country through the consulate and letting the higher ups take care of it? The two of us rely on technology to make a living, so it''s useless to think about it. But I just heard vaguely that there is a celebration banquet in their cafeteria tonight. Food It should be much better than usual. After hesitating for a few seconds, Mosin was obviously convinced: Thats okay, then Ill make a call, and you can go to the cafeteria to get me something to eat. ?In this way, the news of "a new J-8 improved test flight" was quickly spread back to Russia. ?Due to the time difference, when Shengjing planned to have dinner, the time in Moscow happened to be just after lunch. In Sukhoi Design Bureau. ?A middle-aged man walking in a hurry walked into the office of Mikhail Simonov, the chief designer of the Su-27 aircraft and the current head of the Sukhoi company. ? ? "Misha, you are here, please sit down first." ? ? ? The man''s name is Mikhail Pogosyan, who is considered Simonov''s student and successor. ?After the former gradually withdrew from front-line work due to age and energy issues, he has gradually begun to actually lead the technical department of the Sukhoi Design Bureau. Simonov got straight to the point: "Misha, our negotiations with the Chinese on the transfer of Su-27 aircraft technology must be accelerated. You tell Kurbsky that we can make decisions regarding the specific content of the transfer and the number of aircraft to be purchased. There must be concessions, but the price, especially the transaction method, must be guaranteed. "Boost?" ?Pogosyan was a little confused by Simonovs sudden statement: In fact, the master and the apprentice had certain differences on the matter of arms sales to China. Simonov has always been very tough, especially regarding the Su-27SK that imports parts for assembly, which is the contract number of J-11A. He has always insisted on killing at least 200 aircraft. The negotiations between the two parties have not progressed smoothly. Pogosyan believes that instead of wasting time and energy on such things, it is better to use some concessions to exchange funds faster, and then invest in the development of new models of aircraft. Thats right, speed up. Simonov nodded: "To be specific, we agree to transfer the production line of the two-seat Su-27UB together and no longer restrict them from replacing core components such as radar, engine and airframe materials. Of course, we will certainly not be responsible for the technical problems that arise after the replacement. , lets make this clear. Why... why did you suddenly... Come and take a look at this. Simonov said, picking up a brief newspaper from the desk and handing it to Pogosyan. The above is naturally about the first flight of the new aircraft of the 601st Institute. "new model" Pogosian probably understood why his teachers attitude had changed 180. ?But he was still a little confused: But teacher, even if according to the above, the performance of Chinas new aircraft has improved greatly, they currently have no way to produce usable beyond-visual-range air-to-air missiles. Whats the use of just one aircraft? ?Mainly, even he felt that the concession mentioned by Simonov just now was really too big. Its not that these conditions must not be met. At least You have to add money. Thats what Im worried about Simonov let out a long sigh, then stretched out his hand and tapped rhythmically on the table: You know, they actually discussed the Beetle radar issue with the Fazatron Research Institute before, and also negotiated with Ermao on the introduction of R27 air-to-air missiles, and now they have built an airframe with good performance... ?Pogosians expression also became solemn. ?Originally, both sides were actually very anxious. ?Sukhoi Company is facing economic pressure and is eager to get money to revitalize the situation. ??As a heavy-duty fighter with a maximum takeoff weight of more than 30 tons, the Su-27''s help to China''s aviation manufacturing industry is also obvious. This is also the main reason why the two sides were able to stalemate ??Both think that the other party will be unable to hold back at first. But now, even if China still has difficulties with weapon systems, it can completely turn to purchasing key components and obtain certain beyond-visual-range air combat capabilities in a short period of time. They may not be so anxious. As for the money to buy radars and missiles, not even a single ruble went into the pockets of Sukhoi. ?Thinking of this, Bogosian couldn''t sit still anymore. Ill go find Kurbski right away! (End of this chapter) Chapter 81 Turbojet 14 (magic flying for the helmsman luppp002 Chapter 81 Turbojet 14 (Additional update for the helmsmans flying magic luppp002) (two in one) Due to major changes in the design of the No. 04 and No. 05 demonstrator aircraft, the day after the first flight of the No. 04 aircraft was completed, Yang Fenghata quickly presided over a work meeting involving different factories of the 83rd Project. Coordination meeting to determine the current technical status of the 83rd Project. Different from the previous progress seminars that were only held within 601 institutes, this meeting was of a higher level, covered more and wider fields, and had several times the number of participants. In general, the improvement work related to the wing is progressing very smoothly. While Chang Haonan was designing the slats, the wing structure research team successfully arranged the relevant pipelines and hydraulic mechanisms for the leading edge slats into the main wing structure at the expense of reducing the volume of the wing fuel tank by about 5%. The entire improvement project saved the most time. ?Lin Shikuans digital design team also connected with Factory 112 and successfully introduced digital manufacturing technology into the improvement and production process of the new wings of the 04 and 05 prototypes. ? This allows Factory 112 to start production preparations for the new wing almost simultaneously with wind tunnel testing after obtaining complete design data. Within a few days of wind tunnel testing, the flight control design team calculated the aircraft control rate under slatted conditions as quickly as possible and made corresponding modifications to the previous flight control system. They have accumulated considerable experience in the design of analog and digital fly-by-wire flight control in the past J-8ACT and the J-8IIACT active control technology demonstrator aircraft that will soon make its first flight, so their capabilities in this area are quite reliable. . ? It is precisely because of all the above reasons that the No. 04 prototype was able to complete improvements and make its first flight again in such a short period of time, and the key components of the No. 05 prototype have also begun production. The new overall arc windshield led by Yao Mengna has also completed the structural design and installed the first sample on the No. 04 prototype. She is assisting Factory 112 in designing a new molding and clamping system control software to ensure Improve the quality of molded parts and reduce the scrap rate. ?However, if it were all good news like this, then Yang Fenghata would not actually need to convene this meeting. The problem still lies in the flying hair matching work. After the work docking between the air intake professional team and the 606 office responsible for the WP14 engine, they still have not been able to find out the root cause of the engine''s possible smoke-inhaled shutdown after the missile on the inner pylon was launched. Objectively speaking, the working conditions of the engines of the PL8 or PL11 missiles are indeed very bad when they are launched - When the 612 Air-to-Air Missile Research Institute in Luoyang developed the Pili 8 air-to-air missile, there was no smokeless propellant that met the performance standards in China, so the pyrotechnic effect of this missile when launched was very spectacular. Coupled with the WP14 engine, which is not very stable to begin with... This is a problem caused by the weak aviation industry system. China is not alone in the world in using smoke or micro-smoke propellants. In fact, as long as the aircraft and engines are properly designed, a small amount of primary smoke composed of carbon particles and metal oxides will not affect the launch platform. For countries with strong aviation industry, even if a certain link in the equipment system is not perfect, it can often be made up for by leaving margins in other aspects. But for China in the late 1990s, every link in the equipment system was not perfect, and it was already very difficult to meet its own design targets. Therefore, once something went wrong, it was difficult to count on other parts to help fix it. When the topic came here, the warm atmosphere at the beginning gradually turned serious. Fortunately, although China''s aviation industry system lacks capabilities, it at least has unified leadership and there has been no mutual criticism between different systems. ?At this time, Institute 601, Institute 606 and Institute 612 are a whole, and there is no use in shifting the blame. The key is to find ways to solve the problem. Since it is currently impossible to determine where the specific problem is with the engine, we might as well change our thinking. Finally, a comrade from the overall design team put forward his own idea: The detachment method of the missile on the innermost pylon can be changed from the slide rail type to the ejection type or the drop type, which can reduce the smoke density faced by the engine, thereby reducing the failure rate. Chang Haonan, who was sitting in the first row of the conference table, wrote this question in his notebook and frowned slightly as he thought about it. ?This comrades idea is certainly feasible. The missile needs to be tightly connected to the aircraft through the lead frame and suspension beam. The so-called slide launch means that the missile is ignited directly on the launcher and relies on its own thrust to slide along the track and leave the launcher. As for ejection and drop-type launches, the missile first leaves the launcher through the ejection mechanism or its own gravity, and then ignites in mid-air. Since the missile is already at a certain distance from the carrier aircraft when it is ignited, the impact on the latter will naturally be much smaller. In fact, these two methods first appeared to launch heavy air-to-ground missiles that were relatively noisy when ignited. ??There is no problem in dealing with the similarly noisy Pili 8, as well as the future Aspad or Pili 11/12. But everything has a price. ?These two methods have strict requirements for overload during launch, and as a weapon used in close combat, the Thunderbolt 8 often needs to be launched under conditions of large overload. So if this method is really adopted, it basically means that the inner pylon can only carry mid-range air-to-air ammunition or auxiliary fuel tanks. More importantly, Chang Haonan doesnt like to avoid questions like this. Although the smoke concentration of the Thunderbolt 8 is very high when it is launched, it can be launched normally on the previous J-7E and J-8B. The R27 medium-range air-to-air missile, which also does not use smokeless propellant and is more noisy when launched, can even be launched directly under the Su-27''s inlet. So no matter what, WP14 must have flaws. Even if the immediate problem is solved by changing the launch method, the two unstable engines will still be a hidden danger. It must be changed! ?The truth of this matter is not complicated. Chang Haonan can see it, and other people participating in the work coordination meeting can naturally see it too. Furthermore, changing the missile separation method actually does not require any changes to the aircraft itself, just changing the guide frame, and it does not even require the participation of any unit in the August 3rd Project. Hence this proposal was ultimately chosen as a fallback option. On the other hand, due to the major changes in the wing design, Project 83 has an additional prototype. It is expected that the number of test flights will be more than originally planned. The 606 Institute and the inlet professional team will also have the opportunity to solve the problem. Investigate the cause. Of course, the safest way is to give up the turbojet 14 and go back to the slightly inferior but proven turbojet 13F2. But not only the 606 Institute, but also other people involved in the August 3rd Project were unwilling to do this. The reason why China''s aviation engine development has been bumpy is that, in addition to its weak foundation and the high difficulty of aviation engines becoming the crown jewel of the industry, another important reason is that our aviation engines have always been used as corresponding aircraft. The project exists in conjunction with it. This is not only true for imitations, but also for self-developed models. If the aircraft project is discontinued, the corresponding aviation development projects will also be discontinued. This has resulted in almost no back-and-forth between different types of aviation engines, and each project has to start from scratch for scientific research institutes. In fact, let alone every project, a project with the same code name may be overturned multiple times at different stages due to completely different performance and technical requirements. This lesson is particularly unforgettable for School 606. In 1963, in order to improve the H-5 bombers that were heavily equipped at the time, the 606th Department, under the leadership of Wu Daguan, developed the No. 950 engine based on the turbojet 6, which was later named the turbofan 5. Compared with the turbojet 5 originally used by the H-5 Engine A increases fuel consumption by 35% and reduces fuel consumption by 30%. In 1970, Turbofan 5 completed ground testing, and its performance in all aspects fully met the requirements. Although there was still a gap compared with the world''s advanced level, it was a successful first step. However, in 1973, as the Air Force gave up its plan to continue improving the H-5, the already highly completed turbofan 5 project was also discontinued. ?The Turbofan 6 project, which was initiated slightly later than the Turbofan 5, also had a bumpy journey. After four launches, four shutdowns, five changes in design goals and design location changes, it finally came to nothing with the J-9 project. The turbojet 14 "Kunlun" supporting the August 3rd Project is the first Chinese aircraft engine to have completed its own design, trial production, testing, and successful installation and flight test. It is also the first aircraft engine with completely independent intellectual property rights. . Although the performance of this engine is average in all aspects, everyone has feelings for such a "single seedling" of the aviation power system. ??If you choose to use the old model at this juncture, even if it is only temporary, it will definitely have an adverse impact on the Turbojet 14, which has finally reached the test flight process. So at the end of the meeting, Yang Fenghao decided to let the inlet professional team and representatives from the 606 Institute go to Yan Liang first to look for ideas to solve the problem. The 03 prototypes that had just moved over and the ones that had passed before The 01 prototype aircraft is undergoing frequent test flights there and can provide more data. Other groups are cooperating with Factory 112 to complete the production of 05 prototypes as quickly as possible. Throughout the second half of the meeting, Chang Haonan was thinking about his next plan. ?He returned to Shengjing early this time just to verify the design of the turbojet 14 engine, especially the compressor structure. If you want to continue to promote the progress of the 83rd Project, the engine must be an unavoidable part. ?Furthermore, if the progress of the Turbojet 14 can be straightened out, it will be a good start for China''s aerospace industry. No matter what you do, you need positive incentives. Just like when you are studying, if there is a progress bar, if you can increase your score by a few tenths of a percent by reading a book and doing questions, then the number of good students will probably be much greater. So first use the fastest speed to create a usable finished product. Even if the performance is not bright, it will produce good feedback. ?This hard nut must be broken down! So after the meeting, Chang Haonan directly found Yang Fenghao. The latter was discussing something with a solemn-looking middle-aged man. Hey, Xiao Chang. ??Yang Fenghao noticed Chang Haonan walking towards him, then patted the other person opposite him and introduced: Here, Lao Yan, this is the Xiao Chang I told you about just now, Chang Haonan. ?After hearing Chang Haonan''s name, the man immediately turned his head and looked him up and down: Comrade Xiao Chang, I heard Mr. Yang say before that the technical improvement of the 83rd Project was directed by a young man in his early twenties. Today I finally saw him in person! ?The other party took the initiative to shake hands with Chang Haonan, but the expression on his face was still very ugly. At this time, Yang Fenghao spoke to Chang Haonan again: This is Yan Zhongcheng, the leader of the power joint research team of our August 3rd Project and the chief designer of the turbojet 14 engine. Chang Haonan suddenly realized. ? Judging from the current progress of the 83rd Project, Yan Zhongcheng, as the general person in charge of the power system, is indeed facing a lot of pressure. Hello, Yan Gong, I have admired your name for a long time. ?Of course Chang Haonan had heard of Yan Zhongchengs name before he was reborn. ??Although the turbojet 14 developed by him was not successful in the original timeline, the QD128 gas turbine for power generation developed on its basis has successfully entered the marketization stage and was even successfully exported. It can be regarded as a success in another field. After the three of them exchanged pleasantries, Yang Fenghao changed the subject and said to Chang Haonan: I remember when we first met at Beijing Airlines, you mentioned that the theoretical principles of fluid mechanics and the engineering methods of computational simulation are universal, and you are also conducting research in related fields of compressor blade design and manufacturing. So Lao Yan and I were talking just now about transferring you to the Power Joint Research Team to do some work with Institute 606. What do you think? What are your opinions? ?Of course I have no opinion. It would be better to say that Chang Haonan was just thinking about how to open this conversation with Yang Fenghao, but now he no longer has to worry about it. ?Hence, he agreed to the arrangement almost without hesitation, and his decisiveness surprised Yan Zhongcheng next to him. The latter looked at Chang Haonan again, who was standing upright in front of him, and said in a solemn tone: "Xiao Chang, before making a decision, I still have to give you a vaccination first." "The Turbojet 14 is our country''s first complete attempt to develop an aero-engine model from scratch. The foundation in this area is weaker than the fields you have been engaged in before, and there are more difficulties, and... you may also face life dangers. , so I hope your decision is well thought out." In fact, Yan Zhongcheng himself almost died in an engine test accident, so this life-threatening danger is definitely not a threat. "Well, the joint power research team is expected to decide on the candidates to go to Yan Liang the day after tomorrow. You can give me the final answer at that time." ?Chang Haonan originally wanted to express his position directly, but after looking at the other party''s expression, he did not speak in the end and just nodded. Yan Zhongcheng was obviously worried that he would make impulsive choices and underestimate the difficulties he would face, which would lead to some emotions appearing later. This situation can be said to be not uncommon. Instead of wasting words and explanations, it is better to wait for two days so that the other party can feel at ease. Okay, Ill think about it. The first order should have exceeded 2,500, and it will continue to increase day by day tomorrow. (End of this chapter) Chapter 82 engine failure Chapter 82 Engine Failure ?Chang Haonan did not really need to wait for two days. Because at the same time that the work coordination meeting was held in Shengjing, something happened to Yan Liang. The time goes back to half an hour ago. ? Test pilot Lin Tingguang is flying the No. 01 prototype of the J-8-3 for the planned high-altitude and high-speed test flight project. Although the subsequent two full-state prototypes No. 04 and 05 will be equipped with new wings, this does not mean that the test flight data of the two non-full-state prototypes No. 01 and 03 are meaningless. In fact, unless the overall design is completely overturned like the Su-27 prototype T10, even if there is a change in the aircraft design, it will only be necessary to use a new prototype to supplement some related subjects. Even if the change seems obvious. ?For example, the No. 01 and No. 03 prototypes of the FC1 Xiaolong fighter jet still use the boundary layer baffle inlet. Only from No. 04 did they switch to the DSI inlet. ??Another example is that the six ribs above the air inlets of the J-10 No. 01 and No. 03 prototypes really only serve as structural reinforcements, but the arrangement was adjusted on the mass-produced models to increase the spoiler effect. ?The content that Lin Tingguang wants to test today has nothing to do with the wings, but to find the ultimate flight envelope under the current matching design of the flight engine Like all other equipment, the worse the working condition of the engine, the more likely it is to malfunction. When the working conditions reach a certain critical value, the failure rate becomes unacceptable. The level of this critical value also determines the performance of the engine. But like all other equipment, there is often a difference between the paper performance of an engine determined during design and its actual performance after it is manufactured and installed on the aircraft. For some engines with better stability, such as F110 or F404, the difference between the two will not be too big for the time being. But for some engines with poor stability, such as the TF30 or the early F100, paper performance has almost no reference value. And the performance of the same engine installed on different aircraft is sometimes very different. TF30 performs well when installed on the F111, but is a complete disaster when installed on the F14. So it is necessary for the flight test team to accurately determine where the actual limits of the engine are. On the one hand, it is to let the pilots of combat units know how to ensure that the aircraft is in normal working condition and reduce the accident rate. On the other hand, it also produces enough data and gives it to the engine design and production units so that they can make more targeted improvements. The turbojet 14, at least the current technical state of the turbojet 14, is undoubtedly the latter engine with poor stability. So the test flight work requires even more care. In the cockpit of prototype No. 01, Lin Tingguang pushed the throttle lever with his left hand gently, watching with his eyes as the flight speed on the HUD slowly exceeded Mach 1.8. This is the speed he needs to maintain for the rest of the test flight. Preparing for a yaw maneuver test flight. The voice of the tower commander came from the earphones. Received, yaw maneuver test flight. ?After Lin Tingguang repeated the command, he began to use his hands and feet together, carefully coordinating the control amount of the stick and rudder, so that the aircraft gradually began to enter a sideslip state. Began to enter a sideslip. Lin Tingguang took a deep breath and reported to the tower. Every second that follows feels like a century. Flight conditions with sideslip angle have exceeded the adjustment range of the adjustable sloping plate air intake, so the intake air flow distortion is very serious, which especially tests the stability and reliability of the engine. Strictly speaking, this is a posture that should be avoided during normal flight. But just like subjects such as stalling and spin, "abnormal" flight is inherently normal for the special group of test pilots. ?Under the control of Lin Tingguang, the No. 01 verification aircraft successfully maintained a side-sliding flight attitude for more than ten seconds, and then smoothly leveled off. During this period, everything was normal. Very good, the subject is completed, prepare to return. Please note that there is a strong crosswind in your current flying airspace. The voice of the tower commander also became noticeably more relaxed. The most dangerous part of this test flight has been completed. Received, ready to return. ?Lin Tingguang in the cabin also breathed a sigh of relief, and at the same time began to slowly close the throttle, controlling the speed of the aircraft to slowly decrease to Mach 1.1. However, just when everyone thought they were done, he suddenly heard a "bang" sound coming from the right air intake, and then the right engine speed dropped sharply, and the shaking feeling in the cockpit became violent. The right engine failed and lost thrust. Although he faced an aircraft malfunction at a high speed, long-term training allowed Lin Tingguang to calmly report the current problem and start thinking about troubleshooting. He slowly and almost subconsciously closed the throttle, then adjusted the aircraft''s attitude to turn left and descend, aiming in the direction of the airport runway. If it is just an ordinary engine that stops in the air, it still has enough speed. As long as the airflow drives the engine speed again, it should not be difficult to recover. ?However, soon, a warning about the abnormal temperature of the right engine stopped him from restarting the engine in the air. There is definitely something wrong. An engine that has been damaged is definitely not expected to be restarted. ?Lin Tingguang looked at the altimeter that kept falling, his brain running rapidly, constantly thinking about the current situation he was facing. In the headset, the tower has even given instructions to allow parachuting. Although the J-8-3 aircraft has two engines, if a fire occurs in one engine, it is likely to affect the other engine, or even disintegrate in the air. tragedy. The pilot will not be held responsible for parachuting at this time. ??But as a test pilot, Lin Tingguang was unwilling to give up. In addition to saving the aircraft itself, the fault data generated by this test flight is also very valuable. If it can be brought back intact, it will be of great help to the next improvement work. So he hesitated for a few seconds. ?It was in these few seconds that Lin Tingguang discovered that as he gradually closed the throttle and stopped supplying fuel to the engine, the temperature of the right engine was being controlled. And he still has a certain altitude. If handled properly, it is entirely possible to return to the airport and land. No. 01 is preparing to return to the airport for landing. ?This sentence implies the risk of sacrifice at any time, but Lin Tingguang''s tone seemed as if he was just describing what he had for breakfast. The commander in the tower narrowed his eyes slightly and opened his mouth several times, but in the end he did not speak to affect the pilot''s judgment. He just asked the emergency response team to prepare to set up a blocking net and prepare fire trucks and ambulances to deal with possible emergencies. Affection. The aircrafts hydraulic system failed, but the landing gear was extended. The good news is that the loss of hydraulic pressure means that it will become extremely difficult to control various rudder surfaces, but lowering the landing gear at least means that as long as the aircraft touches the ground, safety can basically be guaranteed. (End of this chapter) Chapter 83 Rush to Yan Liang Chapter 83 Rushing to Yan Liang Not long after, prototype No. 01 finally appeared in the sight of everyone at the tower. ?Through a high-powered telescope, the commander could see that the right fuselage of the aircraft had been deformed, and the tail nozzle of the right engine was also severely damaged. However, there was no structural damage visible to the naked eye on the inlet part, so it is unlikely that the accident was caused by a bird strike. The altitude is 120, the speed is 427, the visual condition of the tower is good, the attitude of the aircraft is stable, but the descent rate and approach speed are slightly faster. ?Lin Tingguang used all his strength to pull the control stick and pull the aircraft out of a shallow dive. Since the descent rate and landing speed cannot be guaranteed at the last moment, he must let the thicker rear landing gear land first, even though this may face some risk of stalling. At this moment, Lin Tingguang only had the runway and his plane left in his world, and nothing else. Even the sound of the tower commander reporting flight data in the headphones gradually became blurred. ?At the moment when the plane was about to land with the last few meters in altitude, Lin Tingguang opened the plane''s parachute in mid-air. The wheel made contact with the runway and a burst of white smoke rose up. ?Opening an umbrella in the air at the last moment before landing is a trick that the Soviet instructor taught Lin Tingguang when he was learning to fly the Su-27, but he had never tried it on other aircraft before. ??But anyhow, this risky move dropped his landing speed to a safe range and allowed him to use almost the entire length of the runway. In the end, the No. 01 prototype stopped just a few dozen meters in front of the already deployed blocking net. ??The emergency response brigade, which had been on standby for a long time, also rushed forward. The fire truck began spraying water on the right engine, which was still smoking slightly. The rescue team opened the cockpit cover from the outside and lifted Lin Tingguang out of the cockpit. "I''m fine, I can walk on my own..." Lin Tingguang took off his flight helmet and tried to stand up, but in the end he was thrown directly onto the stretcher. However, judging from his voice and the intensity of his struggle, he should be fine. ??The tower, which had been filled with a heavy atmosphere just now, instantly burst into cheers. For personnel in the flight department, saving the aircraft is worthy of celebration. The news that a dangerous situation occurred during the test flight, resulting in the final emergency landing of the No. 01 prototype, quickly spread to Shengjing. Just as the work coordination meeting had just ended, Yan Zhongcheng said that Chang Haonan would be given two days to think about the final decision. When the three people heard the news, the expressions on their faces were stagnant. ?Especially Yan Zhongcheng, he closed his eyes in pain. Although there has not yet been a final determination of the cause of the failure, according to the judgment of Yan Liangs test flight commander, the engine should have failed in the air. And it is not caused by external reasons such as bird collisions. This was undoubtedly a major blow to him and the entire 606 Institute. A few seconds later, Yan Zhongcheng took a few deep breaths, opened his eyes again, and looked at Chang Haonan next to him. The latter was also looking at him. There shouldnt be two days left for me to think about it slowly. ?Chang Haonan''s tone was not wavering at all: Lets go to Yanliang together. Yan Zhongcheng nodded slowly. ?Such setbacks have not changed the other party''s mind, so there is no need to worry about anything anymore. That night, more than 20 people, including Yan Zhongcheng and Yang Fenghao, took a Y-7 plane and landed at Yanliang Airport. Prototype No. 01 was towed into the maintenance hangar immediately after landing, and the maintenance staff also completed the ground inspection. Soon, Li Zhengqi, the head of the flight test center, came to Chang Haonan and others with a ground crew member carrying four thick crutches and two horizontal bars. This is Sergeant Major Lin Gang, the most experienced ground service veteran on our side. In 1996, the soldier''s service regulations had not yet been changed. Lin Gang''s military rank was the fourth-grade sergeant major, the highest among the thirteen fourth-grade soldiers. ?Lin Gang saluted, then turned to Prototype 01 and began to report: "According to the preliminary inspection conducted so far, visual inspection of the left engine''s first-stage compressor revealed 13 pieces of damage to varying degrees, and the tie rod connecting the hydraulic actuator rocker arm of the adjustment plate and the rear adjustment plate was broken at the root of the earring bolt; the engine and air intake The road transfer section was misaligned; using a borescope, it was found that the left and right engine splitter rings were torn. " After Lin Gang completed the report, Li Zhengqi added the situation described by the test pilot: The pilot reported that the engine malfunctioned during the afterburner shutdown process after exiting the high surface speed. There was no obvious air pulsation sound from the engine inlet before the malfunction. "When the fault occurred, the aircraft''s surface speed was relatively high, the M number was near 1.1, and the altitude was greater than 2km and less than 6km. The inlet ramp was involved in the work. When the pilot controlled the throttle to decelerate, the aircraft experienced axial impulse and was forced to push for a short time. Throttle phenomenon, the temperature of the right engine rises sharply in the early stage of the failure, and there should be a fire phenomenon. " ifier A sound of breathing came from the crowd. ?Such serious engine damage, if it is not a bird strike, it may only be surge. Simply speaking, surge refers to the reciprocating air flow caused by the separation of compressor air flow, producing high or low amplitude oscillations along the axis of the compressor. By analogy, it is a bit like an engine "coughing", but this kind of cough is extremely contagious. Once surge occurs somewhere in the compressor, it will affect the entire stage or even multiple stages in a short period of time. The blades affect the working condition of the entire compressor and cause irreversible damage to the compressor structure. And if, like this accident, surge occurs during the afterburning process, the compressor can easily generate negative pressure during the "coughing" process, causing the ultra-high temperature gas in the combustion chamber to reversely flow back, eventually destroying the entire engine. . And if the pilot''s handling of the surge is not reasonable and timely enough, the fuel that has not been fully burned in the combustion chamber will be discharged backward, and spontaneous combustion will occur behind the turbine after encountering high-temperature gas, which may burn the entire aircraft. So Lin Tingguang''s emergency decision after the accident was almost perfect, and the entire failed engine was almost completely preserved, which is considered a blessing among misfortunes. After having a hasty dinner, the joint power research team devoted themselves to analyzing and sorting out the test flight data. Among them, people from Institute 606 are responsible for the engine part, while people from Institute 601 are responsible for the intake duct part ??Although judging from the current situation, this accident is not directly related to the airway, the rules and regulations are such that we must not let go of any possible loopholes. For the surge problem, the most important task is naturally to determine the location of the first surge based on test flight data. This is a job that relies heavily on experience, and Chang Haonan knows that he can''t help much. ?But naturally he would not just watch the excitement when he chose to follow Yan Zhongcheng and fly all the way to Yan Liang. So he asked his comrades at the Flight Test Institute for the flight status data before and after the surge accident of the No. 01 prototype. As for the compressor design data of the turbojet 14 engine, thanks to the digital and parametric modeling that has been completed before, I brought it with me when I came from Shengjing. There may be many factors that induce surge, but there is only one fundamental reason, or the essence of surge, which is the flow separation of the airflow on the back of the compressor blades, and this separation increases with the rotation of the compressor impeller. The high-speed rotation develops to the entire cascade passage. Thats right, it happens to be the flow separation problem of turbomachinery that Chang Haonan has been studying before. So he decided to try to calculate the unstable working boundary of the engine while the comrades of the joint power research team were looking for the fault location. There are three more updates to be posted in the afternoon (End of this chapter) Chapter 84 Unstable work line Chapter 84 Unstable Work Line The first and most core step of this task is to find the common working conditions of various components of the turbojet 14 engine and establish a common working equation. This is exactly the part that Chang Haonan probably knows how to do. ?So he found Lin Gang, the person in charge of Yan Liang, borrowed a workstation from the flight test institute, and entered a selfless working state. Time is everything now. In order to improve efficiency, the system must be used to help. Therefore, the top priority is to clarify the complete solution to the entire problem in order to form a project in the system. ?Thinking of this, Chang Haonan pulled out a piece of draft paper from the side. The calculations related to flow separation in turbomachinery are quite complicated, and it is not his best field, so it is safer to write about it. Directly analyzing the engine component-level mathematical model is definitely not something that computers of this era can accomplish, and it is not necessary. Therefore, the second step should be to reasonably simplify the model. (1) Continuous flow between components ?Chang Haonan wrote down the first principle on paper. (2) Power balance of compressor and wheel on the same shaft..." (3) The rotational speeds of the compressor and turbine on one shaft are equal..." (4) When the tail nozzle is operating subcritically, the static pressure at the far front and at the nozzle exit section is atmospheric pressure. Therefore, the pressure change in the engine flow channel should meet the conditions of balancing the degree of supercharging and expansion..." ?Every time he writes a few pieces of content, Chang Haonan will make an attempt. After he used the fourth piece of paper, the system finally responded: [Technology point consumption for improving the project: 10 points, directly giving project results consumption points: 100 points. Are you sure to carry out the unstable working line calculation project of the turbojet 14 engine? It finally happened ?Chang Haonan slowly took a deep breath. Confirm! Improve the project! The whole night passed quickly. ?When the morning sun slowly rose from the horizon the next day, the joint power research team, led by Yan Zhongcheng, finally completed the non-dimensionalization of the test flight data and the drawing of the surge waveform curve. The next work is to find the position that first induces the abnormality among the large number of complicated curves. The main significance of this work is twofold. First, it can provide directional guidance for subsequent high-altitude station simulations and try to reproduce the fault. The main purpose is to determine the cause of the surge, whether it is a design flaw, a manufacturing flaw, or simply too poor air intake conditions. Second, if the compressor needs to be improved later, then this surge induction position is the starting point for modification. ?Engine design is of course a matter that affects the whole body, but no matter how complicated the task is, there will always be a starting point. Just like the thread in a ball of wool. Yan Gong, why dont you go and take a rest first? A young engineer looked at Yan Zhongcheng, who was looking at the data carefully and his eyes were red, and asked with concern. The latter held his waist with one hand and held the mouse with the other hand to mark several abnormal operating points on the compressor''s boost coefficient and flow coefficient diagrams, and directly rejected the proposal without looking back. No need, at least find out the problem first, it shouldnt take long. For him who is experienced, this work is not particularly difficult. As time passes, the ins and outs of the surge problem are becoming increasingly clear in Yan Zhongchengs mind. You all come here. He waved his hand behind him and called several other engineers who were in the same room with him. By the way, why dont you see Dr. Chang who came with us? Because I stayed up all night processing data, and Chang Haonan was not a member of the power joint research team, it would not be a waste to miss him when working, so it was not until Yan Zhongcheng sent a message to everyone to come over that everyone realized the lack of a person. Yeah, it seems like I havent seen anyone else since last night. You didnt run away to rest by yourself, did you? Forget it, lets go look for him later, and listen to Yan Gongs assignment of tasks first. ??Everyone gathered around Yan Zhongcheng and looked at the enlarged data graph on the CRT monitor. The latter picked up a pencil from the side, gestured on the screen and said: Look, I have separated out the surge oscillation loop. The above O-A, A-B, B-R and R-O are the four stages of the surge process. When external disturbances cause the compression system to enter a surge state, in the first part of O-A, because the pressure rise provided by the compressor cannot balance the pressure established in the rear part, under the action of strong back pressure, the pressure flows through the compressor The gas flow rate drops sharply, but due to the lag in dynamic response, the pressure behind the compressor changes slowly. In some cases, such as when the compressor pressure is relatively high, the instantaneous flow rate of the compressor can be reduced to zero, and even reverse flow occurs. When the instantaneous flow rate reaches the minimum value at point A, corresponding to the system pressure at the rear of the compressor, since the flow rate flowing in through the compressor is much smaller than the flow rate flowing out through the pressure regulating valve, in the second part of A-B, the flow rate flowing into the compressor The flow continues to increase while the rear pressure gradually decreases. "For the current valve opening, the instantaneous flow rate at point R is undoubtedly too large. That is to say, the pressure rise that the compressor can provide at this time is much less than the pressure drop required by the pressure regulating valve for the same flow rate. Therefore, the pressure regulating valve is Under the restriction, the flow rate through the compressor must be reduced again, while the pressure at the rear of the compressor continues to rise, and the instantaneous operating point of the compression system is approaching the original stall starting point O again. " The biggest difficulty of this work is to find and isolate this oscillation ring. Now that Yan Zhongcheng has completed this step, other young people in the joint power research team can naturally understand what he is talking about. Everyone who was a little tired after staying up all night instantly regained their energy. ??The engineer who was the first to notice Chang Haonan''s absence showed an expression of enlightenment: So point O is the initial unstable operating point of the system. We need to find out the earliest position in the compressor that meets the operating conditions shown at this point, which is the earliest surge-inducing point where flow separation occurs? Thats right, so everyone needs to find this location as quickly as possible and let the institute do a breathing test to see if the problem can be reproduced! Yan Zhongcheng threw the pencil on the table next to him and stood up from the chair. For a moment, he suddenly felt a sense of hypoxia coming from his brain, and at the same time, his eyesight went black. This is caused by long-term irregular work and rest, overloaded work, and sudden standing up after sitting for a long time just now. ?However, Yan Zhongcheng used one hand behind his back to support the table in time, so it didn''t show too obviously. In order to divert the attention of others, he forced himself to continue assigning a task: Also, Ill meet with the comrades over at Institute 601 later and bring the flow data of the air inlet for reference. "clear!" (End of this chapter) Chapter 85 The surge position can be calculated! Chapter 85 The surge position can be calculated! After Yan Zhongcheng waved his hand to continue working, the people around him finally dispersed and returned to their working positions. Then he stood there and rested for almost half a minute before he finally recovered from the lack of blood supply just now. ? Yan Zhongcheng took a long breath, then picked up the thermos cup next to him and took a deep sip of strong tea, and then prepared to join his men in the next stage of work. The result is at this time. With the sound of rapid footsteps, a figure rushed in from outside the office. "I found it!" Yan Zhongcheng, who had just regained his composure, was still thinking a little slowly. He stood there for a few seconds before he realized that the man waving a few pieces of paper was Chang Haonan. ?Others who were immersed in work were also attracted by this sudden sound and turned their heads. What did you find? Chang Haonan took a few breaths before handing the calculation results to Yan Zhongcheng at the table: I calculated the theoretically earliest position where flow separation occurs, which is on the blades of the secondary rotor of the high-pressure compressor! ! ! ?After hearing this sentence, the first reaction of most people in the room was to be confused - Chang Haonan was not with them just now, nor did he take away the test flight data related to the engine. There is no condition for surge analysis at all? Figure it out? Yan Zhongcheng reacted the fastest. He quickly took the pieces of paper from Chang Haonan''s hand and put on the glasses he had just taken off. However, he only saw the first page and showed an expression of astonishment. You...have you forward simulated the process of this surge failure? Yes. Chang Haonan nodded and continued to explain: According to my calculations, when the accident occurred, flow separation occurred first in the secondary rotor blades of the high-pressure compressor, and then quickly spread to the entire high-pressure compressor, inducing axial low-frequency oscillation of the airflow in the rear combustion chamber and turbine. Finally, it affects the front low-pressure compressor section. Yan Zhongcheng did not answer. He just lowered his head and continued to look at the calculation results in his hands. ?Of course he can understand these things on the paper. In other words, if it were not for a driving monster like Chang Haonan, Yan Zhongcheng would be the person with the deepest understanding of turbine engine performance digital simulation technology in China at this point in time. none of them. When he was studying in the UK more than ten years ago, he did research in this direction. ??He even developed a modular turbine engine steady-state and transient performance simulation tool with his mentor, which was at the absolute top level at the time and was even used by some research institutions for version updates to this day. However, in China in the early 1980s, there was no foundation in this area at all. Therefore, after Yan Zhongcheng returned to China, he still took over the overall design work of 606 Institute and was unable to continue exploring in the field he was good at. In other words, the reason why he was able to return home so easily was because the other party recognized that his greatest ability was impossible to display in China at that time. Thats why we didnt block it too much. By the time some conditions were finally met in the mid-1990s, Yan Zhongcheng had not been exposed to related technologies for more than ten years. If he wanted to pick them up again, it would be almost like starting from scratch. Nevertheless, his knowledge base is still there after all. So when Yan Zhongcheng saw Chang Haonans simulation calculation ideas, what was once engraved in DNA was instantly inspired. To put it simply, the whole night''s work he led the engineers from the 606th Institute was a backward analysis of the working conditions when the fault occurred, given the known fault symptoms. Chang Haonans simulation uses the flight conditions of the aircraft and the structure of the engine to calculate forward where the weakest part of the compressor is in the process from normal operating state to surge state. ??Although both seem to be able to find the location where surge is induced, the efficiency of the two methods and their help in understanding the root cause of the fault are simply not the same! There was silence in the entire office, except for the sound of Yan Zhongcheng turning papers from time to time. About twenty minutes later, he finally read all the contents on the pages in his hand. The calculation process is perfect. Then only the result verification is left. ?As long as the position calculated by Chang Haonan matches the working condition of point O he found on the oscillation ring, it means it is the correct answer! ?At this time, Yan Zhongcheng was very glad that he did not relax from work in the past night. Otherwise, if a young newcomer comes up with the results and they dont know anything about it, that would be shameless. Lets put aside the work at hand first and verify whether the working conditions of the secondary rotor of the high-pressure compressor are consistent with the O point we just found! ?After hearing Yan Zhongcheng''s voice, other people in the room just woke up from a dream and quickly returned to work. ?Although they still dont know what Chang Haonan brought, judging from the performance of Yan Zhongcheng on the opposite side, it must be very important in solving this problem. Time passes minute by minute. Yan Zhongchengs heart is very complex. ??If there are no problems with Chang Haonan''s calculation process and results, it will not only be equivalent to finding the problem, but it can even be directly used to guide the subsequent improvement of the engine, so as to eat two fishes. But on the other hand, this also means that the compressor design of the turbojet 14 is flawed. Because if manufacturing defects cause surge, then the results obtained by simulation methods will definitely not be consistent. Given a result to verify, it is essentially equivalent to verifying the answer, and the workload and difficulty of the work are naturally much smaller. Hence Yan Zhongcheng did not wait too long. Yan Gong, we are absolutely right. It is indeed a problem with the secondary high-pressure rotor! ?An engineer pointed at two data curves that almost overlapped on the computer screen and said excitedly. The whole house was in an uproar. Can...really be able to calculate it? So, he went out to find a place to do calculation simulation last night? "Compared to this...he directly analyzed the cause of the fault in just one night. This is the most outrageous..." On the other side, Yan Zhongcheng took a long breath after hearing the result. Its like an exam. While waiting for results, it is often more painful than after knowing that the score is not good. In any case, there is finally a definite result. The next work is to calm down and start preparing to improve the compressor. Xiao Chang, this time, you are really our hero! Yan Zhongcheng held Chang Haonans hand with a tired look on his face: Go and rest first, there is still a lot of work to do later. (End of this chapter) Chapter 86 long range reconnaissance Chapter 86 Long-range reconnaissance Just when Chang Haonan and the joint power research team finally found and verified the cause of the fault overnight. Across the ocean, Robins Air Force Base, Georgia. Colonel Jason Brooke, deputy commander of the 78th Air Base Wing, was holding a paper cup filled with coffee, leaning leisurely on the back of the sofa, looking at his old friend behind the desk at the far end of the room, who is also the commander of the 93rd Air Control Wing. Brigadier General Thomas Stephens. Tom, have you heard? The new Chinese aircraft that looks like a narrow-mouthed bottle had a serious accident during its test flight yesterday. Jason and Thomas were classmates when they were in flight school. In addition, the 78th Air Force Base Wing has a special nature (it does not have an aviation unit, but is responsible for maintaining and operating the entire air base). Therefore, although the two have different military ranks, they have never been above each other. The subordinates looked at each other. New aircraft? You mean the one they gave to Grumman to improve? The 93rd Air Control Wing has been focusing on European missions in the past few decades, so Thomas does not know much about the situation in East Asia. But nearly ten years ago, when he was just an ordinary pilot, he had seen an aircraft that was somewhat similar to the Su-15 at Grumman by chance, so when he heard this sentence from his old classmate I still have some impression after speaking. I think Jason was talking about something else. The speaker was an Army colonel sitting on the other side, Mitchell Schelling. After Grumman sent those two aircraft back, they started a new in-depth improvement project. The internal code name should be Project 83. However, judging from the situation yesterday, the progress was obviously not smooth. ? Jason picked up the cup and took a sip of coffee: A cousin of mine who works in the Defense Intelligence Agency told me yesterday at the bar that someone saw an engine of the plane spraying fire in mid-air. It was probably an engine accident, and it was very serious. As I said before, in the final analysis, things like aircraft test flights cannot be hidden. And the noise made by Prototype No. 01 yesterday was actually a bit too big. This is not surprising. I have seen that kind of aircraft by chance before, at Factory 42 in California. Although I only saw it from a distance, I have to say... it is very rough. Thomas said as he took out a box of cigars from the drawer, took one out, and carefully trimmed it with cigar scissors. It seems that after all these years, they have not made much progress. Jason shook his head and replied with a smile. Time can change a lot of things. Thomas slowly burned the cigar on the flame of a butane lighter, then put it to his mouth and took a puff: But time alone cannot teach a monkey to use tools. Okay, I admit that your metaphor is very appropriate... "Ha ha ha ha" The happy laughter of three people rang out in the office. After a while, Jason, who calmed down again, continued: "But having said that, although their own aircraft pose no threat to us, those Flankers bought from the Russians are another matter. They have a long range and are very maneuverable. They may be a threat to the humble people. trouble." "The flanker is indeed a powerful opponent, but only in the hands of the Russians themselves." Thomas put the cigar in his hand again and watched the light blue smoke curling up: "I have seen the navy According to the report given by the Intelligence Bureau after the confrontation at the beginning of this year, the Chinese Air Force has no experience in operating third-generation fighter jets. Their pilot skills are immature, and their dispatch rate is also very low. Many maintenance tasks even require the Russian side to send personnel. conduct." ?Hearing what Thomas said, Jason raised his head and thought for a few seconds: "You may be right, but even if only one aircraft is dispatched, the Flanker''s range is enough to follow any aircraft of the 93rd Wing throughout the entire journey, making it impossible for you to perform your mission well." As for the voyage, there is actually no need to worry. Colonel Mitchell, who had not spoken for a while, cleared his throat and then explained: "According to intelligence obtained through satellite reconnaissance and some special means, the Su-27''s oil and electricity equipment and other support systems are completely incompatible with the original facilities of the Chinese Air Force. They currently only have one battalion-level service equipped with all Russian equipment at Suixi Airport in Guangdong Province. The support team, in other words, those flankers cannot operate away from this airport, and our main mission area is to the east, and there are only some imitation MiG-21s with short range in this direction. Compared to the mere 40 Flankers, the top brass is more worried about the dozen or so S300 anti-aircraft missile battalions deployed near the eastern coastline, ? Thomas put the cigar in his hand on the lid of the box, waited for it to go out naturally, then raised his head and looked at the two old friends: In the past few years, we have obtained several sets for testing through the CIS countries, but what China has in hand is an updated version after major changes. The evaluation results...at least it will not be weaker than the Patriot PAC2. No weaker than patriots Doesnt this statement sound like a threat? ? Jason''s cold joke was not very clever, but it still made Thomas and Mitchell laugh. All three of them participated in the Gulf War and are very aware of the amount of water contained in Raytheon''s propaganda about the Patriot missile. Most of the Patriots'' provable results during the entire war were accidentally shooting down the coalition''s own aircraft. The most they shot down were 3 F16s and 2 Tornados in one week. Correspondingly, many coalition pilots will not hesitate to launch missiles to destroy their own patriots after being targeted. ? Thomas, who had a higher military rank, was the first to regain his serious expression: "No joke, we tested the oldest S300PT. Aircraft such as A6 and F15 are very threatening within a range of 60-70 kilometers, and the improved model sold to China by the Russians can double the range. The kill envelope even exceeds that of our Ham missile." The AGM88 "HAM" anti-radiation missile is specially used to attack enemy radar facilities. The combination of EA6B or EF111 and AGM88 is the most powerful weapon for the US Navy/Air Force to break through the imaginary enemy air defense network. ??And a weapon that can pose a threat to carrier aircraft beyond the range of Hamm will undoubtedly arouse the vigilance of the US military. Yes, this is why the Joint Chiefs of Staff requested to send the latest reconnaissance aircraft that have just entered service to Kadena. We need to conduct reconnaissance on the anti-aircraft missile sites deployed around the capital and Shanghai. ?Colonel Mitchell stood up and looked at a brand new four-engine large jet on the tarmac not far away through the huge floor-to-ceiling window in front of him. ?The E8C "Joint Surveillance Target Attack Radar System" developed on the Boeing 707 passenger aircraft platform has just been officially put into service in June this year. It is also the only model in the US military that is dedicated to ground reconnaissance. ?The long strip radar located under its belly can detect and track vehicle-sized ground targets more than 150 kilometers away. For a long time to come, it will be the most advanced ground target surveillance aircraft in the world. In fact, Mitchell, who is an Army officer, appears here precisely because of this E8C. After all, this model was jointly developed and used by the Army and the Air Force. "Well, I wish you all the best. I have to arrange for manpower to serve the most advanced baby." ? Jason drank the last bit of coffee in the cup, threw the paper cup into the trash can nearby, then stood up, straightened his clothes, and left Thomas'' office. (End of this chapter) Chapter 87 aviation power issues Chapter 87 Problems with Aviation Power On the other side, Hao Jing and Yan Liang. After completing the analysis of the engine surge failure, Chang Haonan finally made time to rest for a few hours. ? There are still some comrades in the power joint research team who are inspecting and analyzing the damage to the No. 01 prototype to confirm the specific impact of the failure and eliminate other possible causes of the accident. It is estimated that it will have to wait until tomorrow morning. ?Of course Chang Haonan does not need to complete this job. ?But his task is far from over. Finding the problem is, after all, only the first step in a long journey of thousands of miles. The key is to solve the problem. Although both the compressor of the turbojet engine and the air-conditioning fan he studied before can be classified as "turbine machinery", the difference between them is similar to that of the Pilot 1 and An-225, which also belong to the "aircraft" category. After dinner, Chang Haonan took a walk around Yan Liang''s factory while thinking about the next plan. Since he has a work permit from the August 3rd Project on his chest, he can naturally move freely throughout the entire site. Only a few buildings or rooms require additional permissions, and normal walking is obviously impossible and there is no need to go to such places. . So along the way, Chang Haonan''s thoughts were completely focused on aeroengines. The traditional idea of ??steady wall flow pattern has been used in the current turbine machinery design system. Once the flow separation caused by the airflow expansion flow in the compressor occurs, it is no longer within the scope of the above flow pattern. Since conditions other than wall flow have not been considered from the beginning, it is almost inevitable that the flow will be turbulent or out of control under non-design conditions. From this perspective, the most direct and effective way is to increase the stall margin and delay the occurrence of flow separation by changing the blade design. In particular, the turbojet 14 is an existing design. If modifications are to be made, the original design ideas must be retained. ?After a period of research on swept blades, Chang Haonan is confident that this problem can be solved quickly. As long as the efficiency of the 410 factory responsible for engine manufacturing can keep up, it will not have a particularly significant impact on the progress of the Eighth-Three Project. But for the Chinese Air Force, which is about to enter the third-generation aircraft era, the Turbojet 14 can only be a transition after all. It cannot hold up the future sky of a great country. ?Chang Haonan''s thoughts flew to further places involuntarily. J-10 and J-11, both third-generation aircraft have the same target power. Turbofan10. But he borrowed a popular joke on the Internet before he was reborn. Is the 1996 Turbofan 10 coming? Tathagata. It is truly the Tathagata. ?At this time, nearly 10 years have passed since the establishment of the Turbofan 10 project, but what about the progress of the project itself... Basically there is no progress. Or Schr?dinger''s progress. The turbofan 10 project established in 1987 and the turbojet 14 were developed almost simultaneously. With no experience in engine design, even second-generation engines such as the turbojet 14 have obvious traces of patchwork and reference, let alone the case of the turbofan 10. Although the design goals have not been changed and the design location has been changed as many times as the Turbofan 6, it is inevitable to overthrow and restart the overall design plan many times. Even the original plan that was used for reference was changed midway. At this time, the Turbofan 10 should be in the process of a certain design plan being reset to zero. Actually, this is quite normal. The steady wall flow pattern mentioned earlier has its limits after all. On this theoretical basis, it is almost impossible to design a compressor with high pressure ratio and high load. Because flow separation itself has two sides. Chang Haonan once again thought about the field of aircraft design that he was more familiar with and experienced. About twenty years ago, the design idea of ??aerodynamic distribution of aircraft shape crossed from "steady attached flow pattern" to "steady/detached vortex mixed flow pattern". That is, from suppressing flow separation to utilizing flow separation Intentionally creating a high-angle-of-attack decoupling flow pattern for the aircraft, and using the concentrated vortices generated by flow separation to obtain additional vortex lift. This not only greatly increases the lift of the wing, but also greatly expands the range of the wing''s angle-of-attack, making the aircraft''s performance unprecedented. A leap. It is reflected in the products that fighter jets evolve from second-generation aircraft to third-generation aircraft. Can this idea be introduced into the aerodynamic design of the compressor? ?This idea jumped into Chang Haonan''s mind almost without warning. Of course, its difficult. Because it is necessary to fully understand the flow inside the cascade, especially the rules of separation flow. A common path taken by scientific research is from complexity to simplicity, and then from simplicity to complexity. First, abstract the specific natural phenomenon into a simpler model, and obtain a basic understanding after conducting research. Then gradually cancel the assumptions made, modify and expand on the basis of the basic understanding, until finally the answer to the complex specific phenomenon is obtained. A comprehensive understanding of. Typical examples are from Newtonian classical mechanics and Maxwellian classical electromagnetism to relativity and quantum mechanics. As for boundary layer flow, we have just completed the from complex to simple stage. In terms of numerical simulation, it can probably only achieve two-dimensional steady calculations, and there is even some distance from quasi-three-dimensional calculations. Chang Haonan''s brain felt a little swollen when he thought of this vast amount of knowledge. ?Before he was reborn, he was not a powerful person. He only knew a lot of things but didn''t know why. The above mentioned are only issues in the field of aircraft engine compressor design. ?In addition, there are combustion chambers, turbines, fans, bearings, tail nozzles... After the design is completed, it must be implemented into manufacturing. The system''s capabilities are undoubtedly powerful, but there are two limitations. One is the need for points, and the other is the need to have a certain theoretical foundation first and complete the construction of a basic thinking framework before a project can be formed. ?Although at the beginning of his rebirth, Chang Haonan had already realized that his own strength alone was completely insufficient. But he still underestimated how quickly the pressure would come. ? ?Chang Haonan let out a long breath. There still has to be a team, and it must be a team with me as the main player. ??In addition to the "output" process of promoting the new models and new theories he has developed, he also needs an "input" process. That is, let others be responsible for constructing the basic thinking framework, or at least provide him with sufficient theoretical knowledge. Opening the system panel, Chang Haonan shook his head mockingly when looking at the person with only level 1 engineering experience. Before rebirth, I only took on small projects with no more than 4 people including myself. After being reborn, I have only taken along a few people like Lin Shikuan so far. There is progress, but not enough. ?Thinking of this, he stopped and prepared to walk back. ?The current work of improving the turbojet 14 seems to be a good opportunity. (End of this chapter) Chapter 88 The rapid progress of MA60 Chapter 88 The rapid progress of Xinzhou 60 Just when Chang Haonan turned around, a buzzing sound suddenly came from a distance. It is not the high-frequency whistling sound of a turbofan engine. He subconsciously turned around and saw a small black dot slowly descending from the horizon. Yanliang Airport is used for the 603 in addition to the test flight institute. Except for the Y-7 they took when they came here before, there are very few "normal" models appearing here. Curiosity made him stop and watch. ?The plane''s approach speed was not slow, and Chang Haonan''s eyesight was not bad when he was young, so it didn''t take long for him to see the twin-propeller plane. At first glance, the appearance is not much different from the Y-7 they rode that day, but it is not painted, so it is obviously not a mass-produced aircraft. ?Because of the setting sun, Chang Haonan raised his hand to block the dazzling light and squinted his eyes slightly. Then he saw that the plane was equipped with a pair of wings that he was very familiar with. He said he was familiar with it, but he had never actually seen it with his own eyes before. Even on the design drawings, he had only seen it for a day. But to some extent, it was that day that gave him the opportunity to participate in the August 3rd Project. ?Although the wing design itself was not made by him. Thats right, this should be a MA60. but Why is there an unpainted MA60? ?Chang Haonan smoothed his hair, his legs began to move almost involuntarily, and he walked towards the test flight site over there. ?According to his memory, during the entire airworthiness test flight process, there was only one demonstration aircraft of the MA-60 in flying condition, and that aircraft was painted with a very distinctive painting. ??When the plane''s wheels touched the ground and made a "squeak" sound, Chang Haonan also crossed a bush and saw the situation inside the airport. A group of people are standing on the tarmac. As the plane slowed down the runway and onto the taxiway, he heard a cheer from the crowd. ?Looking at the posture, it looks similar to when the No. 04 prototype of the J-8-3 made its first successful flight a few days ago, but the scale is much smaller. After all, the weight of Xinzhou 60 is far inferior to that of the 83rd Project. Relying on the certificate he carried, Chang Haonan successfully entered the test flight area. There are no big names here, so there are only normal confidentiality requirements and no additional security requirements. Chang Haonans current confidentiality level is high enough. He lingered around the tarmac for a while, watching the plane taxi to the tarmac before the test pilot received a hero''s welcome. Originally, as an outsider, he should have left after watching here for a while. But among the crowd that was dispersing after the welcome ceremony, a very familiar figure to Chang Haonan appeared. Chang Haonan? "Uh...Professor Liu?" Chang Haonan touched his nose and looked at the person in front of him who was walking towards him with the same surprised look on his face: "What a coincidence, you are here too?" The visitor is naturally Liu Hongbo. They are all students of Mr. Du, just call me senior brother. Liu Hongbo waved his hand: You should know that our team is responsible for the design of this models engine nacelle, so I was also called here for the first flight ceremony. At the beginning, Chang Haonan actually wanted to say that he didnt know, but his focus was quickly shifted to the keywords in the second half of the sentence. Okay, Senior Brother Liu, but did you just say first flight? ?Theoretically, the first takeoff of every aircraft after leaving the factory can be regarded as its first flight, but Chang Haonan knew that the other party probably did not mean this. ?Just when Liu Hongbo was about to open his mouth to explain, a tall and thin old man walked behind him. "Hong Bo, this is..." Chang Haonan''s work ID card is still hanging on his chest, but the font on it is not obvious. General Engineer Yi, this is Chang Haonan, a student of Academician Du. Within the aviation system, Yi Yuanhe''s name is not as well-known as Song Wenchong, Yang Wei, Sun Cong or Luo Yang. In fact, Chang Haonan had not paid attention to who the chief engineer of the MA60 was before his rebirth, so he spent about It took half a second to search the other party''s name from memory. ?That was the day he completed the wing flutter analysis, and Du Yishan said he was going to find one of the two people in Haojing. ?But before Chang Haonan was about to speak, Liu Hongbo turned around and introduced: This is Yi Yuan and Chief Engineer Yi, the person in charge of the Xinzhou 60 project. Its interesting to say that although Chang Haonan helped the entire project team solve one of the biggest issues, and although Yi Yuanhe declared Chang Haonan as the first completer of advanced technological achievements, the two had never met before. Hello, Mr. Yi. Comrade Chang Haonan. Yi Yuanhe came up and held Chang Haonan''s hand. He really didnt expect that the other party would be so young. ?So after a long silence, he spoke again: "Although this is the first time we have met, you should be considered as the most important contributor to the fact that the MA60 project has come to this day." ?This first sentence made Chang Haonan feel a little embarrassed. Youre overly complimentary and you just made some small contribution. ? He ??is not a person who is shy about admitting his credit. The reason why MA-60 can be equipped with this more advanced new wing is indeed because of his precise calculations and a set of active control laws that can greatly increase the vibration speed. But compared to the entire project, he really cant say that he deserves the most credit. There is still a big gap between giving a control rate and designing a flight control system. ?Perhaps he can be worthy of this kind of evaluation in the August 3rd Project or any subsequent projects. Looking at the young face in front of him, Yi Yuanhe smiled slightly: Young people dont need to be so modest. Although you didnt design anything for this aircraft, your precise calculations made the whole project come alive. As he spoke, he looked back at the plane that had just stopped for a short time. After the pilot left, a group of engineers began to go up and record the flight data. ? Even if there are not many subjects in the real first flight, even a little more flight data is valuable. "Well?" "The MA-60 is the first aircraft in the world to use fused winglets. Compared with traditional single-piece winglets, it has better effects and is more difficult to design." Yi Yuanhe said with a hint of tone. With a little pride: Our engineers completed this design independently, but if it werent for you, it would not be installed on the aircraft. So, you built a new verification aircraft? No, that verification aircraft had been put on a new wing for test flight more than a month ago. Yi Yuanhe shook his head: This is the No. 01 prototype of the MA-60. The verification machine and the prototype machine may sound similar, but they have completely different tasks. ?Some projects are even subdivided into technical demonstrator, engineering demonstrator and prototype machine. ? By analogy with the automobile industry, a demonstrator is equivalent to a concept car and a prototype is equivalent to a prototype car. Because of the demonstrator aircraft after the wing was replaced, we directly received an investment and an order for 8 aircraft from Beijiang Airlines, as well as an intention to cooperate from the Italian company AgustaWestland. !! Brothers, Im really tired of it. Ill take a day off after two chapters, and Ill update the new helmsman tomorrow. (End of this chapter) Chapter 89 italian olive branch Chapter 89 The Italian Olive Branch ?In the original timeline, Beijiang Airlines did establish a fleet of propeller regional passenger aircraft, but it used ATR42. ? MA-60, which is mainly of original design, is indeed an aircraft with no merits, and it was already in the 21st century when it was actually put into operation. In the end, it didnt even have a drink of soup. ?But the point is not the order for these eight aircraft, but the olive branch extended by the Italians. This is likely to be a huge opportunity for Chinas civil aviation industry. "Agusta Company?" Chang Haonan was stunned: "They are not...helicopters..." This was indeed the case in the past, but judging from the conditions they offered, they were very sincere and it didnt seem like there was anything fishy. ?Yi Yuanhe, Liu Hongbo and Chang Haonan were walking near the tarmac. The setting sun stretched their shadows. After analysis by the head office, I think they may want to use this opportunity to enter the Chinese market. The performance of their products is even better than that of Eurocopter, but its just the cost, tsk tsk The cost problem may not be impossible to solve. Liu Hongbo, who was walking on the other side, said while arranging his clothes: After all, they are directly negotiating with China Aviation Industry Corporation. If they can have a production line... ??While the other two people were discussing the helicopter production line, Chang Haonan raised his head slightly and recalled it. ?AgustaWestland, before his rebirth, was already called AgustaWestland. It was an Italian company mainly engaged in the design and manufacture of various helicopters. ?Representative models such as AW109 and AW139 will be the absolute main force in Chinas police helicopter series in the future. At this time in 1996, this company should be considering a merger with the British company Westland. It was this merger that changed the company''s product prefix from "A" to "AW". ??However, from the perspective of hindsight, this Italian-British cooperation cannot be considered a very successful one. After lengthy negotiations, the two companies reached an agreement in 2001, but the joint operation only lasted three years. By 2004, all the shares of AgustaWestland were re-bought by the Italians at a high price. Went back. ??Since then it has been operating under the Finmeccanica Group. "etc" ?Thinking of this, Chang Haonan seemed to have found some clues. MA-60 is a 40-60-seat propeller regional passenger aircraft. This market segment is not currently large, so there are very few players in it. The most important model, the ATR42, was jointly developed by Italy and France. The participant on the Italian side is Alenia Aerospace. ??It is also one of the subsidiaries of Finmeccanica Group. Everything seemed to become clear. Speaking of which, what are the conditions for AgustaWestland? Will it jointly develop with us? "Yes, but the overall design of the MA-60 has been basically finalized, so they will only provide some help in aircraft manufacturing technology and aviation materials, and will also inject a sum of research and development funds. This is also the part that the head office is more interested in. ." Yi Yuanhe nodded. There is no way. At this time, China''s economy can only be considered to have just entered a rising period. To put it nicely, there is a lot of room for improvement. Therefore, funds for low-priority projects like MA-60 are quite tight. They...didnt ask to participate in other aspects of the design? Other aspects? Yi Yuanhe was stunned when he heard this question, and then he guessed the meaning of the other party''s words: "Are you worried that your technology on the wing will be stolen?" "Well..." Chang Haonan lowered his head and thought for a moment: "Well, I''m mainly analyzing what they want." "You don''t have to worry about this. Don''t say that they didn''t ask for such a request at all. Even if they did, we wouldn''t Maybe I agree." Yi Yuanhe chuckled and waved his hand: China Aviation Industry only has such a unique skill at the moment. Mr. Liang and the others are holding on to it until its too late, unless they can also come up with some equivalent technology to share. ?This idea coincides with that of Chang Haonan. What about the final production, is it joint production or... Build a final assembly line in China and Italy respectively. Except for the core components that each is responsible for, they are all produced in their respective countries. It seems that their ambitions in this field are not small... Hearing this, Chang Haonan roughly understood the purpose of the Italian side. Ambition? Are you referring to our domestic helicopter market? Liu Hongbo is still thinking about helicopters. No, no, no, its not a helicopter, nor is it Chinas domestic market. Chang Haonan shook his head: Finmeccanica Group can be regarded as an Italian state-owned enterprise, and one of its two core companies cooperates with France to develop ATR42, and the other cooperates with us to develop MA60. "Considering that the Saab 2000 in Sweden has very weak competitiveness due to cost and runway requirements, that is to say, in this segment, no country in the world can escape from letting the Italians earn money no matter which model they choose. money." Furthermore, the final assembly of the ATR42 was completed in Toulouse, France, which did not provide many employment opportunities in Italy and had limited help for the development of the industry in Italy. In the 1990s, this information was not very well-informed, so Chang Haonan spent some time at the end to introduce the specific situation of Finmeccanica. After listening, Yi Yuanhe and Liu Hongbo showed expressions of realization almost simultaneously. After all, Italians ability is another matter, and their team level is definitely first-rate. You mean, the other party is very optimistic about the future development of this market segment? The expression on Yi Yuanhes face gradually changed from surprise to joy. In fact, the reason why 40-60-seat regional aircraft were chosen as the starting point of China''s civil aviation industry has nothing to do with any market assessment and user research. It is entirely because in the early 1990s, domestically produced passenger aircraft could be achieved. There is only one Y7 that imitates the An24. There is no choice. So when Yi Yuanhe, the chief engineer, heard the judgment that this market would have great development in the future, he naturally felt unintentional. Yes, especially Southeast Asia and South America, areas where land transportation is inconvenient and navigation distances are relatively short, and some mountainous European countries should also consider it. "if it is like this" ?Yi Yuanhe was pacing with his head down, one hand constantly rubbing his chin. This is his habitual action when thinking about problems. Perhaps we should report it to the head office and try our best to promote this international cooperation? At least according to the current conditions proposed by the other party, there is no harm to us. ??As an outsider, it is naturally impossible for Chang Haonan to directly help Yi Yuanhe make any decisions, but he knows very well how to influence the other party. Moreover, if possible, I suggest further accelerating the test flight of MA-60, preferably in time to participate in the Paris Air Show in the middle of next year. (End of this chapter) Chapter 90 Improved turbojet 14! Chapter 90 Improved Turbojet 14! Attending the Paris Air Show? Yi Yuanhe raised his head again and looked at Chang Haonan. ? Paris-Le Bourget International Aerospace Exhibition, the largest, most prestigious and oldest international aerospace exhibition in the world. ??For Chinese aviation people, the Paris Air Show is not unfamiliar. In fact, as early as the 37th Paris Air Show in 1987, the aviation industry sent a delegation to participate. ?However, most of the exhibits are models, and their technical level is relatively backward. Generally speaking, the focus is on participation. Thats right, and its not just participation. If we can reach cooperation with Italy, even if its only in name, then we are fully qualified to apply for a real aircraft flight show. After saying this, Chang Haonan noticed a glimmer of light flashing in Yi Yuanhe''s eyes. Obviously, the other party has been persuaded. Therefore, Chang Haonan continued to pursue the victory: And, if successful, this will be the first time a domestic aircraft performs a flight performance at a large-scale air show, which will be helpful both for obtaining airworthiness certificates from the European Aviation Safety Agency (EASA) and for entering the European market in the future. Yi Yuanhe''s breathing suddenly became heavier. As an old engineer, he knew very clearly that Chang Haonan was trying to draw a cake. A prototype has just completed its first flight, and he has already planned to seize the European market... ??But knowing that he knew it, Yi Yuanhe couldn''t help but start to seriously think about the possibility that the other party had just said. After all, this cake is so delicious. Looking at the other party''s expression, Chang Haonan knew that he had succeeded. From the beginning of the 1990s until the end of the 2008 Olympic Games, a very important, and even the most important, theme of China''s foreign exchanges was "showing its own image." ?This matter would have felt completely unnecessary in the 2020s before Chang Haonan was reborn, but if we look at the reality at the turn of the century, it is actually very necessary. In this context, it is "the first time" for an aircraft designed and manufactured by China to perform a flight demonstration in a core European city like Paris. It is definitely an achievement that is enough to put Yi Yuanhe, or at least the MA-60 project, in the history books. On the other hand, EASAs airworthiness certificate is even more important. ? Aircraft models that have not obtained airworthiness certificates cannot be registered and operated in the corresponding areas. ?However, aircraft manufacturing itself is a highly monopolized and highly protective industry. Whether it is the United States or Europe, they will never let you pass the airworthiness certification casually. After all, these standards themselves are part of the monopoly barriers and cannot be easily broken through. ?Until Chang Haonan traveled across China, there was only one small aircraft in China, the Y-12F, that had been certified by the FAA. As for EASA, there is not even a single approved model. This has greatly affected the commercial performance of ARJ21 and C919. Now, the course of history has been slightly changed because of the existence of Chang Haonan, a butterfly. The original MA60 was completely unable to compete with the ATR42. In 1996, Europe and the United States generally had a relatively dismissive attitude towards China. ?This is not a bad thing to a certain extent, because it is easier to make a fortune quietly and do things that would not be possible in the next twenty years. ?For example, through cooperation with Italy, we can open up the joints of EASA airworthiness certification. ? Even further, promote mutual recognition between the upcoming CAAC airworthiness certification standards and EASA standards. ??If this matter can be successful, then as long as a model is certified by China, it will automatically be deemed to have passed European certification. Almost solves the problem once and for all. After all, as the saying goes, first-rate companies make standards, second-rate companies make brands, and third-rate companies make products. The same thing is actually happening between countries. From Huaxia products, to Huaxia brands to Huaxia standards, it took almost 40 years on the original timeline. Now, Chang Haonan hopes to speed up this process with his help. ?Yi Yuanhe, as an old aviation man, can naturally think of these things. But the matter is big. Although he is the chief engineer of MA-60, he cannot decide matters other than the project. I need to discuss this matter with Comrade Zhou Yonghang. ?Yi Yuanhe stopped: "However, no matter what the outcome is, Comrade Chang Haonan, I think your suggestions are valuable." After finishing speaking, he turned around and walked in the other direction. He tried hard to control his expression to avoid showing his joy and eagerness in front of these young juniors. But the pace that was much lighter than before still exposed his true thoughts. The only two people left walking side by side were Chang Haonan and Liu Hongbo. After Yi Yuanhe left, the two of them didn''t know what to talk about for a while. The matter of MA-60 has just been discussed, but the nature of Project 83 is different, so it is obvious that we cannot talk about it casually. In the end, it was Liu Hongbo who took the lead in breaking the silence. Sometimes I feel like you are a monster. He looked up at Chang Haonan and shook his head slowly: "When I met Junior Sister Yao at Teacher Du''s place the year before last, I thought that was almost the limit. As a result..." "Is this..." Chang Haonan smiled slightly: "Thousand-mile horses often exist, but Bole does not always exist." Liu Hongbo''s mood suddenly improved a lot. Perhaps I should apply to take an extra course next semester? ?He thought so. Chang Haonan did not stay in Yanliang for too long. The comrades who inspected the No. 01 prototype moved quickly. The power joint research team flew back to Shengjing again early the next morning, leaving only a few people behind. Take care of some less important follow-up tasks. ??Yang Fenghao did not hold another large-scale meeting this time, but gathered several people, including Chang Haonan and Yan Zhongcheng, in a small conference room. Has the problem been identified? Fine. Yan Zhongcheng nodded: When the engine is operating in a large flow path in the transonic speed range, due to the rapid retraction of the throttle lever, the engines afterburner fuel supply decelerates sharply, resulting in a larger engine drop pressure ratio. The engine severely throttles the high-speed compressed gas at the compressor, and the compressed gas instantly flows up in the form of a shock wave, congesting the inlet flow path and the engine compressor flow path. Abnormal flow separation begins from the secondary high-pressure rotor, and then expands. to the entire compressor, causing the compressor efficiency to decrease rapidly and cause surge. So...is it definitely a design problem? Yes. Yan Zhongcheng nodded with a serious expression. Failure to conduct a complete high-altitude platform test on the ground will eventually bring hidden dangers. Now, the hidden danger has turned into an accident. A long silence followed. I need a serious answer to the next question. Yang Fenghao glanced at the people in front of him like an arrow: Is there still a chance for the turbojet 14 to catch up with the design finalization of the 83rd Project? There was another moment of silence. Although we have found the location where the surge occurs, which is the starting point for the next step of design optimization, according to common sense, I am afraid it will take at least about half a year, unless..." Yan Zhongchengs voice was a little dry, and then he raised his head and glanced at Chang Haonan next to him: I think Comrade Xiao Chang should be able to provide a lot of help. The helmsmans update will be in the afternoon as usual (End of this chapter) Chapter 91 We are all under your command! (Added for helmsman fhtvbn Chapter 91 We are all under your command! (Additional update for fhtvbn, the helmsman) ??Yang Fenghao looked at Chang Haonan, who had been bowing his head in thought just now. The latter has been looking at the raw data retrieved from the No. 01 verification machine since he was on the plane. ? He ??wanted to say that in fact, the turbojet 14 should not only face design issues. Because he did a simple calculation last night, and compared it with the flight record data just now, he found that although the compressor structure of the Turbojet 14 has heavy traces of patchwork, the designer obviously knew this, so he still left it at the beginning. Sufficient surge margin. On the general characteristic curve of a compressor, the distance between the common operating line and the surge boundary line is the surge margin of the compressor, which reflects the stable operating range of the compressor. Perhaps due to choosing a more conservative common working line, the turbojet 14 is not bad in this regard. However, when the No. 01 prototype was rapidly recovering oil, the degree of instability in its working state still exceeded the original design threshold, thus inducing surge. ?Of course, from the perspective of surge control, as long as the surge margin is large enough, the occurrence of surge can eventually be avoided. ?Its just that the surge margin is like the human bodys immunity, and the reason that causes the engines extremely unstable working condition that no one knows yet is equivalent to a pathogen. Improving immunity can certainly prevent illness to a certain extent, but it is by no means a permanent solution. If the pathogen cannot be eliminated, the risk will still exist. Furthermore, it is not transparent enough to solve the problem. ?But before he could think of a clue, he heard Yang Fenghaos question: Comrade Xiao Chang, do you have any opinions on the improvement of turbojet 14? ?Chang Haonan did not expect that he would be called so bluntly. It seemed that Yan Zhongcheng was indeed quite anxious. ?So he had to put aside further matters for the time being and solve the immediate problems first. When a persons fever reaches 43C and he is about to become pregnant, the most important thing is to cool down the temperature first, and the root cause can be dealt with later. Well, Teacher Du should have told you before that I have indeed studied the control problem of flow separation inside the turbomachinery. "I have read the research of Professor Wang Zhongqi of Bingcheng University of Technology. The circumferential bending of the blades can well control the secondary flow in the blade channel, thereby controlling the flow separation, so I am planning to start from this aspect, but... something more thorough is needed. The test data is enough. ???Everyone who was sitting around a small conference table just now could not sit still after hearing Chang Haonan''s attitude. They stood up almost at the same time. What about the specific experimental content, and...what preparations do we need? If someone else had said that sentence, it would not have caused such a reaction. After all, the experimental cycle related to compressors is long and costly. The term "sufficient" data generally means that it will take several months or even years. It takes time to gain. But Chang Haonan is different. He has created so many miracles in the past two months that everyone has almost forgotten about the experimental cycle. Chang Haonan, who had one hand on the table, was frightened by the sudden appearance of several people. After a brief hesitation, he had no choice but to stand up. So there was a strange scene in the small conference room where a group of people were standing for a meeting. "The current research on the impact mechanism of curved swept blades on improving compressor performance is relatively qualitative, and there are differences in the flow conditions of transonic and supersonic compressors, so I need to use the original design of the turbojet 14 as a basis to conduct research on the curved blades. The accumulation rules of blades and swept blades are studied separately." After obtaining regular results, carry out top forward sweep modification and bottom forward bend modification, change the sweep height and sweep angle, bend height and bend angle to obtain different sweep and bend design solutions, and then select them through numerical simulation. The optimal comprehensive improvement results are applied to the blades of high-pressure compressors. In fact, this idea is similar to the J-7 improved design plan that Chang Haonan made when he first crossed over. They first looked for the rules, then made plans based on the rules, and finally found optimization in the plans. ? Its just that this time, both the workload and the importance of the work are far greater than before.?????So he needs the help of more resources. The first step is to study the rules, and we can speed up the progress through numerical simulation and experiments simultaneously. The third step is the same, but there is no shortcut in the middle step of coming up with a design plan. It requires a lot of manpower and testing. The process also requires the production of physical objects. In this regard, comrades from the 606 Institute and the 410 Factory need to work together. " In fact, it means asking a large group of engineers to complete the work previously completed by Zhou Shuwan and Zhang Man. ?Yang Fenghao looked again at Yan Zhongcheng on the other side, and Zhong Shihong, the technical director of Factory 410. If we follow Comrade Xiao Changs plan, you will need to mobilize some people from your respective units to accept his command. Yan Zhongcheng and Zhong Shihong looked at each other. The two of them have been working in this field for many years, so they naturally know that the division of labor between factories and offices is not an easy task to accomplish, not to mention that Chang Haonan probably has no experience in this field at all. It can be said that most of the engineers in Institute 606 have heard of Chang Haonan. But the skilled workers in Factory 410 are from a completely different system, and they may not necessarily know who Chang Haonan is. Mr. Yang, if we just transfer people to Comrade Xiao Chang, Im afraid the effect will not be very good. So after a brief thought, Zhong Shihong first spoke out about his concerns. ?Mainly because he himself was parachuted into the 410 Factory from outside before, and many management problems were experienced personally. ?A place like a factory is a bit like an army. Workers, like soldiers, may not necessarily have a high level of education, but they have their own internal chain of contempt. Fortunately, Zhong Shihong had a background in welding, and finally relied on a few unique skills to gradually win over the entire factory. ??But looking at Chang Haonan''s fair appearance, he probably didn''t seem to be able to do such crafts as turning, milling, grinding, boring, forging and welding. What Minister Zhong means is... "I think that in terms of production and manufacturing, it is better to set up a research team directly under your leadership, with you as the team leader, Comrade Xiao Chang as the deputy team leader, and Mr. Yan and I as team members, directly under the command of Comrade Xiao Chang ! "this" Even Chang Haonan was shocked by this proposal. He really wanted to make a breakthrough in management capabilities, but this breakthrough seemed a bit too big. ?From being in charge of Lin Shikuan''s group of 6 people, to being in charge of 606 Institute and 410 Factory? Although it is only temporary. I think this method is worth a try. Unexpectedly, Yan Zhongcheng next to him also nodded: "Comrade Chang Haonan is very knowledgeable in numerical simulation of separated flows. I have put aside this aspect for more than ten years, and I just want to pick it up." "I" After hearing the two peoples statements, Yang Fenghao was naturally very happy. He didnt even ask Chang Haonan for his opinion. Instead, he came over and patted him on the shoulder directly: Then these two old guys of mine will all be under your command from now on! (End of this chapter) Chapter 92 Theoretical level improvement (two-in-one) Chapter 92: Improving the theoretical level (two in one) ?Perhaps it is due to the attempt when he was just reborn, or it may be due to the fact that his management ability has improved from a blank LV0 to LV1. ? In short, the subsequent formation of the key research team and the process of assigning tasks to the 606 Institute and the 410 Factory were much smoother than Chang Haonan''s own imagination. After all, the abilities and experience of the engineers who can work in these places have been tested, which is much easier than bringing two undergraduates, Zhou Shuwan and Zhang Man. When introducing calculation methods and experimental content, it is basically easy to understand. ? So that night, the team responsible for the research on the forward sweep of the upper end of the first part of the moving blade and the positive bending of the lower end had already started working. ?After assigning the last part of the tasks, Chang Haonan finally dragged his tired body out of the temporarily assigned office and prepared to go back to his residence in No. 601 to take a rest. From the day the No. 01 prototype had the accident until now, he has not had a sound sleep. There are still many problems left for him to solve. Many parts are not simple even with the help of the system. Even if the experimental part has been stripped out, the numerical simulation part alone cost him 50 points. The main limitation is naturally the level of computers in this era. The flow field complexity involved in each of the plans he gave is different. The swept blades have modifications with different sweep heights and sweep angles. The curved moving blades also have modifications with different bending heights and bending angles. Without going through the system, Before optimization, the number of automatically generated meshes for each blade was around 900,000. Let alone 1996, even in 2006, it is definitely a number that can make people''s blood pressure rise immediately after hearing it. And the pressure on this matter is greater than the previous improvement of the wing design. ?While the No. 04 prototype is being refitted with a new wing, the two prototypes No. 01 and No. 03 are still undergoing non-stop test flights, but certain adjustments are needed to the test subjects. But the engine, as the heart of the aircraft, had an accident as big as the last one, which almost resulted in the complete loss of the No. 01 prototype. It was obviously impossible to continue the test flight until the problem was solved. Every day that is delayed on this will cause immeasurable damage. ? Chang Haonan exhaled a breath of turbid air, feeling the already cool evening breeze in the late August night in the north, and couldn''t help but quicken his pace. Just as he was about to enter the dormitory building, the guard on duty at the door suddenly called him from behind. Permanent worker! ??Although Chang Haonan is not a formal employee of the 601 Institute, most non-technical staff cannot figure out the more complicated twists and turns, so they are basically referred to as x work. Is there something wrong with this comrade? Chang Haonan stopped when he heard his name, turned around, and saw a security guard in uniform who looked about the same age as him running out of the guard box with something in his hand. This is a letter sent to you. Because I didnt write the specific dormitory number, I left it with the doorman. "letter?" ?Chang Haonan took the brown paper envelope from the other party in a daze, and could not see clearly what was written on it in the dim light. Not many people know about his work at Institute 601, and those who know about it seem to be able to contact him directly through Yang Fenghao. Excuse me, comrade. It doesnt matter, just come to me and sign to confirm receipt. A few minutes later. With a soft click, Chang Haonan opened the dormitory door. The first thing he usually does after coming back exhausted is to throw himself on the bed and lie down for half an hour without thinking. But today, after a brief struggle when going upstairs, Chang Haonan decided that he still had to see what was going on with the letter. Light up the desk lamp. ??Although it had been several months since his rebirth, and he had gradually become accustomed to this era without mobile Internet, seeing a letter with a stamp still made him feel a strange feeling. The sender column is filled with "Xu Yang, Institute of Computing Technology, Chinese Academy of Sciences". The pen writing is very beautiful. No wonder ?Chang Haonan said to himself while opening the letter. I know that he works in the 601 Institute, but there seems to be no way to contact him by phone and I need to send a letter. It seems that he is the only one. The folded letter contained nearly 20 pages, and the thickness made him frown. Forget it, tear it all down, lets take a look at what she wrote and then rest ?Because he opened the letter so quickly, he didn''t even have time to recall whether there was any **** plot that flashed through his mind at that moment, before he saw the title at the top of the first page. "Research on an Extended Kalman Filtering Algorithm Improved Based on Differential Evolution Algorithm" Abstract: The extended Kalman filter has been widely used in various fields such as engineering practice. However, this algorithm brings errors due to the assumption that the process noise is fixed, and the accuracy is not high. An improved EKF algorithm is studied, which mainly improves the filtering accuracy by assuming that the process noise is obtained by filtering results and observation results, and then using a differential evolution algorithm to optimize the obtained process noise variance... The results show that the improved extended Kalman filter algorithm reduces the state estimation bias and obtains a relatively ideal filtering effect ifier I kind of regret opening this letter ?Chang Haonan rubbed his swollen temples, put the letter on the table, stood up and left the bedroom. He was going to make a cup of strong tea. I''m afraid tonight''s rest will be ruined again. Hours later. Chang Haonan looked at the letter paper that had been marked with red and blue pencils and the notebook full of writing next to it, and drank the last sip of the bitter tea in the thermos cup. It can only be said that Xu Yang is indeed a doctor who returned from UCB and personally participated in the development process of the differential evolution algorithm. ?Judging from the level of ability shown by the other party, it doesnt seem to be an exaggeration to say that she has a system similar to mine. The ability to draw inferences from one instance is quite powerful. The content of this letter is not too complicated: After seeing Chang Haonans improvements to the differential evolution algorithm, Xu Yang proposed a new idea and wanted to discuss the feasibility and application prospects with the latter. Simply put, filtering is the operation of filtering out specific band frequencies in signals. It is an important measure to suppress and prevent interference. It is almost an essential process for all activities that require the emission of electromagnetic signals. In fact, the least squares method learned in high school mathematics is a classic filtering method, but since it only considers the relationship between measurement and state, the stability of this method is not good. Later, the Kalman filter method was born for linear systems whose noise obeys Gaussian distribution. Due to its high efficiency and accuracy, it soon became one of the most widely used filtering methods in engineering. ??But because the original Kalman filtering method was only applicable to linear systems, many people later made certain expansions on this basis so that this well-received filtering algorithm can also be used in nonlinear systems. The most typical one is the extended Kalman filter algorithm (EKF), which first uses Taylor series to expand the system equations and ignores second-order and higher-order terms above the second order. At this time, the nonlinear system is close to a linear form. , and then use the standard Kalman filter algorithm to estimate the state of the system. Obviously, the calculation amount of the EKF algorithm is not large, and it is not difficult to implement. However, EKF is prone to serious oscillations and even divergence in strongly nonlinear systems. By the mid-1990s, the engineering community had basically seen the limits of the EKF algorithm and began to think about improving the EKF algorithm or creating a new Kalman filter algorithm. The new algorithm proposed by Xu Yang uses an improved differential evolution algorithm to select the variance of the process noise before filtering, which greatly reduces the state estimation deviation and can rely on a slightly larger calculation amount than the traditional EKF algorithm. Achieve accuracy far beyond that of the EKF algorithm. As an aerospace engineer, Chang Haonans previous understanding of filtering algorithms was limited to the application level, and he did not have a deep understanding of the basic principles. However, if he only looked at the process of optimizing process noise through differential evolution algorithms, it should be no problem. ?? He raised his head and looked at the horizon that was already turning fish belly white. The tiredness that had just been suppressed by the strong tea finally came over. ?Chang Haonan decided to take a break and find a few books to study thoroughly before replying. On the one hand, the optimization work on the blade shape design of the turbojet 14 compressor has just begun. Most of the work at this stage is completed by engineers from the 606 Institute. Moreover, because of the existence of the system, the code written by Chang Haonan does not require debugging as long as the idea is correct. This ability that envies countless programmers determines that the most time-consuming part for him is not programming, but waiting for calculation results, so there is Enough time to do it. On the other hand, although the algorithm Xu Yang came up with has no effect on the current engine improvement, it is the basis for a series of technologies such as precision-guided weapon strapdown seekers, radar data links, and missile inertial navigation system calculations. They are all closely related to the Pili 11 semi-active radar-guided air-to-air missile, a copy of the A-bomb that Chang Haonan was previously pessimistic about. It is organic and has no ammunition, and it cannot form combat effectiveness. ?If it can be realized, it may be of great help in solving the problem of insufficient target test accuracy that has plagued it for a long time. ??Its almost like Im dozing off and Ill give you a pillow. Perhaps the weapon system of Project 83 can also see hope within this year... This was Chang Haonan''s last thought before falling asleep. The next morning, Chang Haonan left the dormitory after washing up and planned to go straight to the library, borrow some materials and continue to study the idea proposed by Xu Yang. Especially the second half of the section related to Kalman filtering. But when he went out with high expectations, he happened to meet Yao Mengna who had also just opened the door to the room. The two looked at each other. Why is Team Leader Chang going out so late? Dont you need to prepare meeting materials in advance? Yao Mengna locked the door with a hint of teasing in her tone. After hearing this, Chang Haonan was stunned for a moment, and then slapped his forehead heavily. Being a manager requires getting used to. Having been a screwdriver for decades, he is already inexperienced in this area. In addition, after reading letters all night, his mind was filled with algorithm-related things. As a result, he almost forgot about today. About the morning meeting. This meeting was even proposed by him last night. Fortunately, I was reminded by Yao Mengna when I went out today, and the entire task assignment process was in Chang Haonan''s mind, so it would not delay the important matter. ?However, he still controlled not to show any annoyance. He just took a breath and pointed to his head. No need, I have all the knowledge in my head, just start assigning tasks when I get there. ?However, the duration of the final morning meeting exceeded Chang Haonan''s estimate. It was not until after lunch time that he found the information he wanted from the library and returned to a computer room specially set aside for him in the computing center. ?Since it was clear that the idea was feasible, Chang Haonan did not even need to use the system. He quickly found the part he wanted from the pile of data he received. Actually, with the current system level, there is no way to carry out two projects at the same time, so he can only rely on himself this time. For almost an entire afternoon, Chang Haonan has been analyzing and calculating ideas on draft paper. "often" ??When Yao Mengna opened the door and came in to ask him to have dinner, she only saw a figure writing furiously from behind. After hesitating for a moment, she pursed her lips and gently closed the door again. ?At this time, Chang Haonan had completed the entire calculation process and took out a stack of letter paper from the side to write a reply. ??The scrawled content on those draft papers just now, even if he were to read it himself the next day, he might not be able to understand it. In the original timeline, the unscented Kalman filter algorithm (UKF) was developed to solve the problem of large linear truncation error in the EKF algorithm. Chang Haonans original idea was to use this algorithm combined with the noise variance optimization proposed by Xu Yang, which should be a very important breakthrough in the field of information extraction. ??However, as he gained a deeper understanding of the algorithm, he discovered that the theoretical mathematical derivation process of the UKF algorithm was not rigorous, and after several calculations and simulations, it was proved that the numerical value in a high-dimensional state was still not stable enough. ??While just learning and researching the Kalman filter method, a flash of inspiration gave him a more subtle idea: "Huishu is informed that the idea of ??using the improved differential evolution algorithm to automatically adjust the variance matrix of the process noise matrix is ??quite novel. After numerical simulation calculations, it has been proved that it has good estimation accuracy. However, there are still some problems in the EKF filtering algorithm itself. question" Since EKF needs to obtain the Jacobian matrix, the specific form of the nonlinear function must be known exactly, and black box encapsulation cannot be achieved. Since the derivatives of the nonlinear functions of the state equation and the observation equation cannot be obtained in many practical problems, it is difficult to obtain the Jacobian matrix. "According to Bayesian theory and Spherical-RadialCubature rules, the integral in the Cartesian coordinate system can be converted into a spherical-radial integral, and a set of deterministic sampling points can be used to perform state estimation through the propagation of nonlinear equations. The specific Proceed as follows:" Step 1: Determine the initial value of the filter: X0=E(X), P0=E[(X0-X0)(X0-X0)^T] "The second step is to calculate the volume point at time k-1, P(k-1|k-1)=S(k-1)S(k-1)^T, where S(k-1) passes through P( k-1|k-1) Choleski decomposition is obtained. For the volumetric Kalman filter algorithm, the point set and the corresponding weight w are..." Time passed by minute by second. At the beginning, Chang Haonan still needed to write for a while and then stopped thinking for a while. But as the calculation process progressed, his whole idea became more and more smooth, and he seemed to have entered into something. A state similar to "flow". So when he finally wrote "Reply now, leave the rest for later" at the end of the letter and signed his name, he saw the dinner packed by someone on the table next to him. I used to think that forgetting about food and sleep was a figure of speech Chang Haonan thought of himself who forgot to sleep last night and forgot to eat tonight. He smiled and shook his head, then folded the letter and put it aside. ?While opening the lunch box, he glanced at his system panel and then froze on the spot. Scientific Research Points: 110 Theoretical level: LV2 (500/10000) Engineering experience: LV1 (270/1000) Management ability: LV1 (100/1000) Comprehensive ability: LV1 Projects in progress: 1 Projects that can be carried out: 0 Because this is the first time since his rebirth that his experience in [theoretical level] has increased. And its 500 points at a time! You should know that the things he wrote have not even been read by the second person, and have not had any real impact yet. It seems like Ive done a really big job this time ?Chang Haonan leaned back on the chair, opened the disposable chopsticks, rubbed the sore back of his neck and muttered to himself. I was driving late on the road just now. I always thought that the UKF algorithm was proposed in 2000, but today I saw that it was proposed in 1991, so the subsequent plot about the improvement of the Kalman filter method has to be adjusted, but now the details have been Straighten it out again, no problem. (End of this chapter) Chapter 93 Blessing in disguise Chapter 93 A blessing in disguise While Chang Haonan was thinking about ideas for improving the Kalman filter algorithm, the entire 83 Project team was certainly not idle. Instead, according to his deployment, they started working intensively on the impact of swept blades on the flow in the expansion cascade. A study of the effects of separation conditions. Because I already have mature ideas and research methods, there are not many parts that require a flash of inspiration in the whole process. The main thing is to be step-by-step and careful and meticulous. With the help of Chang Haonan and the entire digital design team, the efficiency of experiments such as static pressure distribution and limit flow spectrum has been greatly increased. Since simulation methods can be used to predict the results, or at least the changing trends of the results, it is necessary to actually conduct The number of tests has been reduced by almost an order of magnitude compared to before. Even so, after all, every experiment requires the 410 Factory to actually manufacture the required compressor blades, so the improvement of the entire engine cannot be completed overnight. Of course, for 606 institutes that are used to working on a yearly basis, this work progress is almost like a dream. Even Yan Zhongcheng was shocked by the smoothness of the test process. In short, according to Chang Haonan''s initial estimate, it would take about twenty days to come up with an improvement plan. ??If it werent for the fact that at the end of the first week, Yao Mengna accidentally saw an article from the Journal of Aeronautics and Astronautics. The time goes back to when Chang Haonan had not yet joined the 83rd Project research group. In Bingcheng, more than 500 kilometers away from Shengjing. Ph.D. student Zhang Donglin is using the classic ROTOR37 blade to study the impact of tip clearance height on the flow field in the Aerodynamics Laboratory of Bingcheng University of Technology. In fact, it is similar to Chang Haonans ongoing project, except that the research content is relatively rough. ?? And because of the lack of support from simulation methods, the research methods of their research group are still based on traditional large-scale experiments. In addition, the funds are not very sufficient, so the efficiency is not high. Senior brother, theres another power outage in the laboratory. ?Zhang Donglins junior brother puffed out his cheeks and opened the office door with a depressed look on his face. "I know." Zhang Donglin pointed to the two computers in the office that had been shut down due to a power outage: "But there is nothing we can do, we can only wait." For China in the mid-1990s, power shortage was still a major problem plaguing the whole society. In fact, until about 2010, for many non-first-tier cities, power supply interruptions in residential areas due to insufficient power were still a relatively common thing. Relatively speaking, Bingcheng University of Technology, as a university directly under the Commission of Science, Technology and Industry for National Defense, naturally has a very high priority in terms of power supply. Even so, except for some particularly important laboratories that have independent power supply lines or even self-provided generators, power outages are still a difficulty that needs to be faced frequently. So Zhang Donglin was not too surprised. He just looked at the two computers and muttered: "I just hope that the data in the computer will not be lost due to a sudden power outage..." ?His junior brother also lay down on the two chairs spliced ??together next to him. In that case, senior brother, let me catch up on some sleep first. If you call me, call me again. Because the summer vacation is not over yet, there are only two of them in the whole office. Junior brother and Zhang Donglin have always had a good relationship, so they are more relaxed. ? Zhang Donglin, who was also swept away by fatigue, nodded, but almost instinctively lay down on the table. About an hour later, the two of them were woken up by a phone ringing. Their tutor, Professor Lin Haijun, said that a new batch of blade samples had been sent from the school''s metalworking center and they were asked to pick them up. ?The phone ringing meant that the power supply had been restored, so Zhang Donglin asked his junior brother to go back and do experiments while he began to inspect the batch of blades.? ? ? Then he saw a scene that made people hypertensive. ??Due to some stains on the paper design drawings during the handover process, the worker responsible for the production process mistakenly opened a chordal channel on the surface of the blade that penetrated the suction and pressure surfaces. ??More than 30 blades in this batch were all scrapped. Fortunately, he checked it carefully before signing for it, otherwise if he had just signed his name, the loss would have to be borne by the research team. The blades used for basic research in the school are naturally unlikely to be made of special expensive materials like those actually used in aerospace engines, but even so, it is still a large expense for their young mentors. ?After taking a few minutes to stabilize his mentality, Zhang Donglin contacted the instructor using the phone number of the director''s office of the Metalworking Center. ?The youngest associate professor in the school still has some status after all. After some battles, the Metalworking Center finally promised to re-manufacture a batch of blades for them. However, due to production scheduling issues, it would take an extra 4-5 days. ?Since these blades that have been processed into scrap products have been sent, no one is willing to take them back. Therefore, Zhang Donglin, who was a little worried about the progress of his graduation, returned to the laboratory depressedly, casually placed the scrap blades in the corner, and then returned to the office to continue sorting out his previous experimental data. This minor incident was quickly forgotten. Until noon the next day, the junior brother hurried in again. Brother, our experimental equipment may be broken. ?Zhang Donglin felt as if his heart stopped beating for a second. Whats wrong? I replaced a new set of blades, but the experimental data is very abnormal compared with the previous series. New blades? Zhang Donglin was stunned for a moment, and then realized that he had forgotten to notify the junior brother who was doing the experiment after putting the damaged batch of blades in the laboratory yesterday. ?This finally made him relax, who was nervous just now, and waved his hand towards his junior brother who was standing at the door. "I forgot to tell you that the blades piled next to the cabinet behind the door are scraps accidentally processed by the metalworking center. It is normal for the data to be wrong when you install them." Waste...waste? ??Junior brothers surprised voice made Zhang Donglin raise his head again: Yes, you should pay attention when installing the blades. There is a slit on the side. But senior brother, judging from the experimental results, the performance of those blades... is very promising, but the fluctuation is very serious. "Um?" He briefly thought about the papers and reference books he had read in the past, and did not recall that anyone had studied the impact of chordwise slits on the pressure front edge and trailing edge of a blade. After all, intuitively, this will only cause the flow field inside the compressor to become more turbulent. ?However, Zhang Donglin, who has been studying for a doctorate for three years, understands that it is in these things that are usually ignored due to intuition that new discoveries are more likely to be found. Take me to see it. (End of this chapter) Chapter 94 How can I know that it is not a blessing? Chapter 94 How to know that it is not a blessing ?When Zhang Donglin saw the experimental data recorded by his junior brother, his first feeling was that he was a little confused. But after all, he has been studying for a doctorate for three years, and he quickly found something valuable from the messy numbers. "interesting" ??Although as his junior brother said, the stability of these sets of experimental data he made is very poor. But if you ignore the huge variance and just take the average value, you can still find that when the Mach number Ma=0.40 and the angle of attack are 0, 3 and 6 respectively, the corresponding total pressure loss coefficients are reduced by 7.0% and 32.1 respectively. % and 32.3%, the average airflow turning angle increased by 4.02, 3.59 and 1.78, and the stable working range increased by 3.5 angle of attack. Obviously, this is quite an amazing progress. ?However, the calculation method of "ignoring the variance and taking the average directly" is obviously difficult to achieve, and Zhang Donglin has to make sure that the result can be reproduced and is not due to some kind of misoperation. Looking at the experiment notebook in front of him, he took two deep breaths in succession: Junior brother, I want to see the process of your experiment just now. Can you repeat it exactly as it is? Ah...of course, no problem. In the next two hours, Zhang Donglin watched his junior brother perform repeated experiments with skillful movements while taking out a notebook to record some of his thoughts and ideas. With such exaggerated fluctuations, the experimental results are naturally different from those just now, but the overall pattern remains the same. ?The chordal groove accidentally opened during manufacturing can indeed improve the performance of the compressor to a considerable extent, especially the performance under large intake angle of attack. ? Judging from the few sets of data currently available, the faster the air intake speed and the larger the angle of attack of the compressor, the more obvious the improvement effect will be. In addition, Zhang Donglin also wrote down several factors that may affect performance, such as the location (height) of the slit, the shape and angle of the slit, etc. ?However, before he finished writing the last part, he knew that this issue might be difficult for the small research group he was a part of to fully study. ?Compared to the blade tip consistency and stacking line that they are currently focusing on, there are actually so many independent variables related to this slit that it feels a bit outrageous. ??More importantly, the compressor experimental equipment at Bingcheng University of Technology can only support typical subsonic research at the maximum Mach number Ma=0.59. With some tangled feelings, Zhang Donglin found his mentor Yu Fei. Howhow is this possible? After seeing the data in the experimental notebook and listening to Zhang Donglins analysis, Yu Feis first reaction was almost exactly the same as that of his students: "This kind of chordwise slit will cause the small flow turbulence with low total pressure and the mainstream with high total pressure to meet. The velocities are added on the vector. The velocity of the mainstream fluid decreases and the velocity of the wake fluid increases. This process will produce serious consequences. How could the mixing loss and total pressure loss coefficient be reduced instead? In addition, the volatility of this original data is too great. I estimate that the correlation coefficient may not even be 0.7. How dare you directly average this kind of data? But I asked my junior brother to repeat this experiment again, and the results still show the same pattern. Zhang Donglin did not intend to give up this opportunity: And you also have to consider that although blade slits will increase mixing losses, they can also play a blowing role and delay the large-scale boundary layer separation of the blade cascade. There should be competition between these two effects. The relationship is right! The master and apprentice looked at each other in silence for a few seconds. As mature scientific researchers, they know that it is impossible to solve the problem by bickering here. Yu Fei held his chin with one hand and beat the beat on the table with the other hand almost unconsciously. After thinking for a few minutes, he spoke again: You know that the flow loss inside the compressor is still almost a mystery to us at present. If we want to study this problem from a mechanism perspective... I am afraid it will be difficult to get the answer. But if we do an experiment He did not say it directly, but even Zhang Donglin knew that the laboratory at Bingcheng University of Technology did not have this capability. ?The office fell into silence again. "In this way, you first design a set of experiments and do everything that can be done in our laboratory. Considering that the research in this area is still basically blank, I think if we put more effort into it, we can publish an article Journal of Aeronautics or Aerodynamics shouldnt be a problem. But...the effect of such research should be discounted, and we simply cant do the supersonic or even high-subsonic compressor part. I think..." "I know what you mean," Zhang Donglin was interrupted by Yu Fei raising his hand before he finished speaking: "How to deal with the following matters depends on the results you make next. If it cannot be determined below the classic subsonic speed, then this direction is basically equivalent to being blocked. It is safer to return to the original position as soon as possible. on the route. And if the experimental results show that your two ideas are correct...then this will be a major breakthrough in the field of compressor design. ?Hearing the last few words, Zhang Donglin''s eyes lit up: A major breakthrough? ??As a doctoral student at Bingcheng University of Technology, he knows the weight of these four words very well. "But... don''t be too happy too early." Yu Fei looked at Zhang Donglin who looked like a fox with his tail raised and said: As you just said, we have limited hardware conditions here and cannot do more in-depth research, so I am going to report it to the Commission of Science, Technology and Industry for National Defense and let them organize manpower to conduct a comprehensive evaluation. "That''s why I just asked you to take advantage of this time to quickly conduct experiments and formulate an article to send out. On the one hand, it is possible for you to directly participate in the projects of the National Defense Science and Technology Commission, and on the other hand, you can at least leave something for yourself. Besides, arent you just one essay short of graduation requirements? ?This last sentence convinced Zhang Donglin, and he decided to solve the immediate graduation problem first, and then consider how much more he could dig out from his unintentional discovery. So, after two months of experiments, submissions and waiting, a paper titled "Numerical Analysis of Blade Cascade Characteristics after Slotting from Pressure Surface to Suction Surface" appeared in the Journal of Aerodynamics. ?Almost at the same time, Yu Fei reported this paper as a key achievement to the Commission of Science, Technology and Industry for National Defense, the direct superior of Bingcheng University of Technology, saying that this achievement has the potential for further follow-up research. Should it be said, the efficiency of Zhang Donglin and Yu Fei is still a bit slow. ??If we follow the normal administrative process, this topic will still come to the 606 Institute in a roundabout way, but there is a high probability that it will not be able to keep up with the technological improvements of the Turbojet 14. Fortunately, one day after work, Yao Mengna went to the library to borrow a book and read it. She noticed this paper and borrowed it out of curiosity and took it back to the computer room. (End of this chapter) Chapter 95 Yao Mengna’s discovery Chapter 95 Yao Mengnas discovery ?Yao Mengna lent out the "Aerodynamics News" purely out of interest. She saw an article with an interesting summary. Written by a Ph.D. from Bingcheng University of Technology. By opening a jet slit between the suction surface and the pressure surface of the blade, the high-speed airflow on the pressure surface can be directed to the suction surface through the jet slit under the action of the pressure difference, injecting energy into the low-speed area of ??the suction surface, thereby delaying the separation of the boundary layer. When she first saw this place, Yao Mengna was a little shocked. ?This method has a simple structure, is easy to operate, and does not require additional energy injection. If the effects mentioned in the abstract can be truly achieved, it can be said to be a revolution in compressor internal flow control technology. An article of such weight seems not to appear in a mere journal of Aerodynamics. After all, even if this journal is published in China, it cannot be considered the top in the aerospace field. ?Furthermore, considering that this is just a basic research article that does not involve specific models, there is no problem in submitting it to relatively well-known foreign journals such as ACTAAstronautica or Advances in Space Research. You must know that according to the current achievement evaluation system, even the top Chinese Journal of Aeronautics and Astronautics is not at the same level as the latter two. ?Thinking of this, Yao Mengna turned over the pages carefully, preparing to see the specific contents inside. ?At the same time, a name that appeared very frequently around her recently came to mind almost involuntarily. There cant be people like him who dont even care about papers ? Yao Mengna had heard about Chang Haonans abandonment of Progress in Aerospace Sciences, the top journal in the industry, from Du Yishan. ?At that time, all she could think about was emotion and admiration for the other persons awareness. ?However, as her understanding of Chang Haonan deepened, she gradually realized that in addition to the issue of awareness, a big reason for that matter was that a paper in the top journal in the industry may indeed be nothing to the former. Thinking of this, Yao Mengna finally realized that her thoughts seemed to be wandering a little too far, so she shook her head and forced herself to return her attention to the magazine in front of her. ?After spending about half an hour carefully reading the following content, she understood why this seemingly high-level article was posted so casually The verification part is really inadequate. Not only are the data in the experimental part fragmented, but the range of experimental conditions chosen is also very narrow. There is not even a systematic study on the impact of the properties of the jet slit on compressor performance, let alone more complex flow field simulation and theoretical analysis. "What a pity" Yao Mengna shook her head. It was not difficult for her to think that the reason for this situation was limited by the objective experimental conditions. After all, there is not enough research funding at this time, and the research groups of major universities are mainly focused on making money to make ends meet. In the past, she would probably just write down the main conclusions of the article in a notebook, and then tell her mentor when she saw him. Even for Du Yishan''s research group, experimental funds are still tight. Without project support, there is no condition to conduct this level of experimental verification. "but" After hesitating for a moment, Yao Mengna stopped putting the magazine back on the bookshelf and borrowed it. She plans to use numerical simulation to verify the content of this article. After returning to the calculation center, she immediately found Lin Shikuan who was busy performing parameter fitting and flow spectrum calculations on blades with different curved sweep designs according to Chang Haonan''s guidance. Although the entire digital design team is from the 601 Institute, considering that the 606 Institute has almost no experience in numerical simulation, and the 83 Project is a whole, Yang Fenghao still assigned them all to Chang Hao. Nan is responsible for managing the engine research team. "Forest worker, I need you to borrow a workstation and...well, one or two people." Do you have any new tasks coming from Dr. Chang? ?Lin Shikuan was startled when he heard Yao Mengna''s request. He thought it was some new job at Institute 606, and rubbed his forehead that was swollen from long hours of work with some distress. Although the basic principles of numerical simulation are the same, their entire team, including Chang Haonan and Yao Mengna, has less than ten people in total, but they have to bear the entire improved computational simulation part, which is really stressful. "Well...this time it has nothing to do with him. It''s just my own idea." Yao Mengna shook her head: "It''s about the design of the compressor blades." After finishing speaking, he seemed worried about saying too much, so he added: "But it hasn''t been verified yet, so it''s hard to say what the result will be." ?Lin Shikuan showed a slightly troubled expression. Among the duo sent by Beijing Hang University, although Yao Mengna''s brilliance is not as dazzling as that of Chang Haonan, so much so that the entire August 3rd Project has a faint tendency to work around him, but if it specifically refers to the digital design team, Yao Mengna is influenced by On the contrary, I need more help. Mainly because the latter is really good at parametric design. So he wanted to do this favor to the other party. But right now, his manpower is indeed very insufficient, and Chang Haonan''s progress is very tight. It doesnt matter if we open another workstation, but we really cant spare the manpower. As you know, parametric fitting mainly depends on the workload. Lin Shikuan replied with some confusion: "But I suggest you ask Dr. Chang for help. You should be more familiar with him than I am. In terms of numerical simulation, his efficiency alone can at least equal that of a company." Thats...okay. Yao Mengna was actually not sure whether she could really dig out anything useful from that article, so she didn''t force it and just asked for the key to another computer room where the workstation was kept. After opening the workstation, she entered a series of command line statements with unskilled movements, then flipped the journal in her hand to the page she wanted to read, and took out the scratch paper and a red and blue gun from the bag she carried with her. pencil. I dont know when Yao Mengna started putting a pencil sharpener and a large number of red and blue pencils in her schoolbag, but the ballpoint pen she was used to using had not been taken out for a long time. ?However, she seemed unaware of this change. The missing parts of this article are first the cross-sectional shape of the jet slit, and then the location of the slit The flow problem inside the compressor naturally still involves solving the Reynolds average N-S equation, but for impeller machinery, it should be switched to the rotating coordinate system..." After all, she was someone who had experienced a lot of training around Chang Haonan. Yao Mengna quickly wrote out the basic simulation ideas, and started meshing, model selection, and boundary conditions determination on the computer according to her own ideas. Then, her work progress got stuck here. (End of this chapter) Chapter 96 Why are you doing research? Chapter 96 Why do you study it? The boundary conditions encountered in turbomachinery are among the most complex in the field of CFD. Since the boundary layer approximation is invalid in many cases, these equations must be solved as a coupled system. And there are a large number of flow, heat transfer and geometric parameters in the turbomachinery flow: Mach number, rotation speed, intake angle, Reynolds number, Thoma coefficient, Richardson number, Prandtl number, blade pitch, bending torsion, aspect ratio Based on these parameters, Yao Mengna also introduced a jet slit that had never been tried before, further increasing the independent variables of the internal flow field of the compressor and making the simulation more complex. ?So as the computational simulation program was gradually completed, she gradually realized that the process she had just written down on paper was not very feasible in actual operation. Mainly because Yao Mengna conducted a simulation attempt using an experimental group with the simplest slit, and found that the required convergence time far exceeded her expectations. In fact, Lin Shikuan and others also encountered similar problems, but they were later solved by Chang Haonan, who achieved accelerated convergence through methods such as local time steps, multigrids, and implicit residual smoothing. However, these things are still a bit complicated for people who are just starting out in the field of numerical simulation. In addition, the time is tight and the tasks are heavy, so in the end the latter person is responsible for writing the relevant programs. This put her in a bit of trouble. If you ask your junior for help ?Yao Mengna does not object to working with Chang Haonan. Or rather, she enjoys working with Chang Haonan. And she also knew that with the other party''s ability, it shouldn''t take too long to solve this problem. But Chang Haonan is now not only in charge of the digital design group. ? There are so many things related to the improvement of Turbojet 14, and his previous management experience is insufficient. During this period, he really feels a little overwhelmed. Yao Mengna is often required to do some things on his behalf, and he is in a state of severe lack of sleep almost every day. ?On the other hand, Yao Mengna also has some selfish motives. Before meeting Chang Haonan, she always thought that she should be a genius. In fact, most people around me feel this way. But in recent months, everything has changed. ?The appearance of Chang Haonan and his exaggerated performance in the wing flutter analysis project almost directly broke her heart. But fortunately, we finally adjusted... At least that''s what she thought for a time. You are just an ordinary person, and there is nothing wrong with ordinary people. Yao Mengna told herself this. ?However, a persons obsession for more than 20 years cannot be given up casually. ?Although she has accepted the fact that she is not as good as this new student, she still wants to do something entirely on her own. Its not easy to ask others for help with everything...and hes really overburdened recently. ?This reason was so impeccable that Yao Mengna easily convinced herself. She decided to refer to the program written by Chang Haonan before and try to see if she could solve this problem alone. ??At the same time that Yao Mengna decided not to seek outside help to verify and expand the content of the article, Yu Fei, the mentor of Zhang Donglin, the author of the paper, also entered the office of the dean of the college. Previously, due to the dual limitations of the metalworking center''s processing capacity and their laboratory experimental conditions, Zhang Donglin only spent a month to obtain data results that were not very good. ??However, the editors and reviewers of Acta Aerodynamics showed extraordinary interest and efficiency, and it took more than two months for his paper to be published. This gave Yu Fei confidence to a considerable extent. Although Journal of Aerodynamics is not a top journal in China, it is, after all, managed by China Aviation Industry Corporation and sponsored by Beijing University of Aeronautics and Astronautics. Being recognized by its editorial board seems to be equivalent to taking the most critical step. As long as you can get a separate project sponsorship, you can definitely show off your skills in this direction. Zhang Donglin may even get the opportunity to stay in school after graduating with his Ph.D. and continue to engage in research in related fields with him. ??In short, when Yu Fei opened the office door, he was even imagining that he would be promoted to full professor for completing the project... Then, he saw his dean, who was wiping sweat with a handkerchief, and two other unfamiliar faces, a man and a woman, sitting next to him. This is Associate Professor Yu Fei who applied for that topic before. The dean first introduced to the two people next to him, and then turned to look at Yu Fei: "These two are comrades from the Commission of Science, Technology and Industry for National Defense. They are responsible for reviewing and approving your project application with me." Sun Xianmin. Ling Na. The two of them shook hands with Yu Fei and announced their names at the same time. ?The latter, who was immersed in the excitement of having **** just now and has not fully recovered, did not notice that their attitudes were a little cold. The four people quickly moved to a small conference room. The dean coughed twice and spoke first: Associate Professor Yu, let me first report on the general situation of the project you applied for. No problem, Yu Fei picked up a piece of chalk and walked to the blackboard. He had made full preparations before coming here, and he was naturally confident at this time: High-performance engines require compressors with higher efficiency and boost ratio, resulting in an increase in stage load and flow loss In previous experiments, our research team accidentally discovered that grooves on the blade surface can effectively improve the flow separation inside the compressor..." We have currently studied the flow of planar stator cascades and tried radial jet slits that open from the suction surface to the pressure surface and chordal slit structures that do not open up the two pressure surfaces Relevant research results have been published in the Journal of Aeronautical Dynamics. We believe that opening jet slits on the blades to reduce losses and improve the load bearing capacity of the compressor is a very feasible route, so we hope to get a Grant money to study this. After finishing these contents almost in one breath, Yu Fei turned his attention to the three people opposite. The air became quiet. The next half minute seemed as long as half a century to Fei. In the end, it was Ling Na who spoke first: Uh... This is an associate professor. According to the requirements, the project application submitted should have a complete literature review. Yu Fei was stunned: I have said before that this phenomenon was first discovered by our research team in experiments. No one has studied it at all. How can we write a literature review? Hearing this answer, Ling Na and Sun Xianmin looked at each other, and then continued: With all due respect, the correlation of the experimental data you obtained is really poor. Its difficult to get the results you just mentioned... "Both of you, in the field of engineering, the correlation coefficient of 0.82 can already explain some problems, at least it can prove the value of continued research." Yu Fei frowned, but still forced himself to answer patiently: Furthermore, our experimental equipment and the accuracy of blade processing cannot meet the requirements for more precise experiments. This is why I submitted the project in the hope of applying for more funds. As you said, the accuracy of your experiment is very poor, so how can you be sure that this result is not caused by the error of the instrument? This time, Sun Xianmin, who was sitting opposite, showed a slightly sarcastic look: You cant find any literature in the relevant field. It doesnt mean that you are original. It just means that others dont think this kind of research is meaningful at all. "If you want to apply for a special project, you must at least provide convincing evidence. Otherwise, don''t waste everyone''s time here. I would say that young people should not be too ambitious and be more down-to-earth. Go and see What are the directions that developed countries are focusing on? Dont hide in your own world and do those useless things! Yu Fei clenched his fists instantly. (End of this chapter) Chapter 97 Theres a bright future Chapter 97 A bright future This...Commissioner Sun, its my fault for not checking the application documents carefully. Just when Yu Fei could hardly help but stand up and argue, the dean, who had been sitting next to him without speaking a word, noticed his excitement and quickly spoke up: But what Associate Professor Yu just said is not unreasonable. No one has studied it, which means we have originality. If a limited amount of funds could be allocated for more detailed preliminary demonstration, I think we would be able to produce results with higher precision and better consistency. ?Seeing the dean speak, Sun Xianmin''s expression softened slightly, and the atmosphere in the entire conference room was not as tense as before. Ling Na next to her spoke again: "Dean Ji, you know that the Science and Technology Commission has a complete set of procedures for establishing projects and appropriating funds for college teachers. We can understand that young teachers are fearless, but scientific research funds are limited after all. Here In this case, we can only give priority to research topics that are proven and have less risk. Obviously, although the person responsible for singing the red face has a much better attitude than Sun Xianmin, he has no intention of letting up on this matter. "This is obviously an opportunity to overtake in a corner." Yu Fei obviously still refused to give up and was ready to continue struggling, his tone also full of sorrow: You keep saying that you are paying attention to the directions that developed countries are paying attention to, but there are only so many ways to increase the compressor pressure ratio. What are the developed countries studying? Increasing the tip speed, increasing the blade camber angle, and modifying the geometric structure! "Their research on the basic field of air flow inside the blade is at least 20 to 30 years ahead of us, not to mention blade materials and manufacturing processes. If we keep following others like this, how can we narrow the gap with them? difference?" Associate Professor Yu, the idea of ??catching up with the English and American satellites is no longer feasible in todays era. Sun Xianmin leaned back on his chair and tapped the table lightly with the pen in his hand: "Our entire department receives hundreds of project applications every month, and the content of each one is similar to what you said. They all say that they can catch up with the international advanced level, but we can''t just approve hundreds of them just because of these. With RMB 10,000 in scientific research funding, no one can bear this responsibility. Yu Fei''s mind started to heat up and he almost blurted out: "Take responsibility? If you are afraid of taking responsibility, then doing nothing is the safest thing!" ?However, the last trace of reason allowed him to control himself and just opened his mouth. ?Although I still had thousands of words in my mind, I didnt continue speaking after all. Obviously, the two sides are not considering the same thing at all. He is talking about the realization of technological prospects, while the other party is concerned about the implementation of specific responsibilities. It has nothing to do with right or wrong. There is no point in continuing to dwell on this. ?No one can convince anyone. ?So the approval defense ended hastily in a slightly embarrassing atmosphere. ?Sun Xianmin and Ling Na even refused Dean Jis request to stay with them for dinner. "well" After sending the two people away, Yu Fei sat on the sofa in the dean''s office feeling a little disappointed. He is a relatively pure scientific researcher. ??This feeling of having clearly grasped a thread among thousands of threads, but being unable to continue due to non-technical reasons, and watching the opportunity slip away from your hands little by little, is very bad. More importantly, Yu Fei could not accept the thinking of the two people just now. Scientific research itself should be a process of constant trial and error, and finding a way out after encountering obstacles again and again. Failure itself is valuable to science. If you simply refuse to approve funds or projects because you are worried about failure, it is tantamount to giving up food because of choking. ?On the other side of the office, Dean Ji is sitting behind his desk. ?Looking at Yu Fei who was like a deflated rubber ball, he raised his head and thought for a moment, seeming to be struggling with a decision. Finally, after a few minutes, he turned his attention to Yu Fei on the sofa again: Teacher Yu, in fact, the concerns of the two people just now are not unreasonable. There are some things you may not know. At the beginning of this year, the Science and Technology Commission appointed people to conduct an inspection on the completion of projects in several directly affiliated schools. "Project verification?" Yu Fei raised his head: "Isn''t it done every year? Do you need to write a year-end summary report?" "Of course it''s different." Dean Ji shook his head: "You and I both know how much water can be put into the year-end summary report, or even the final report, and the higher-ups naturally know it too." So at the beginning of the year, we sent expert teams to each school for verification through random inspections. Yu Fei has never undertaken a vertical project issued by the Science and Technology Commission before, so he naturally knows nothing about it, but he can guess the general situation even from Dean Jis tone: The result...is not optimistic? "It''s not just pessimistic, it''s just chaos..." Dean Ji picked up the cup and took a sip of water, hiding his expression well: I cant say too specific things, but in short, the group of people who were responsible for the review and appraisal of previous projects have left a lot, like the two people who just came, they are all new ones. "this" ?After thinking about it like this, although Yu Fei still felt very unhappy, at least he felt that the behavior of the two people just now was not so illogical. But from another perspective, I am afraid that for a long time to come, the project approval process under the Science and Technology Commission system will become extremely strict. He also knew that the feasibility study of his project application was not very complete. ??And if you want to make groundbreaking results, there is no way. ?Of course, in the final analysis, everything is caused by insufficient funds. That means...there is no hope at all? Yu Fei''s voice was dry, and even became a lot shriller as he spoke. Although this was a question, he actually had no hope, so his voice was low as if he was talking to himself. While speaking, he stood up in a daze and prepared to leave the office. Not necessarily These three words pulled Yu Fei''s body back to the sofa. I have also read your project application. Although the data is a bit rough, there is indeed a prospect. I happen to have an old buddy, and one of his students has recently been studying computational fluid dynamics analysis. It is said that the calculation results are very reliable. If you are willing to cooperate, I can contact you. "You know, experiments in the field of aerodynamics are time-consuming and costly. Even if the computer simulation methods there are not as accurate as they say, at least they are short and cost-effective, and they can improve your experimental data. " Yu Feis eyes lit up when he heard this. "No problem at all!" (End of this chapter) Chapter 98 emergency takeoff Chapter 98 Emergency Takeoff The old man mentioned by Dean Ji is naturally Du Yishan. As for the old mans student, there is no doubt that he is Chang Haonan. In normal times, this kind of cooperation is not particularly complicated even if it is carried out across schools. It is just that there will be some entanglements in the ranking of final results and contributions. But the problem is that the two people in the research group, Chang Haonan and Yao Mengna, who are the best at numerical simulation, are already highly bound to the 83rd Project. Even now they are dealing with the problem of turbojet 14 engines. Since Yao Mengna''s research on compressor blade slits was conducted privately, no one else knew that the unremarkable article published in Aerodynamics had entered her field of vision, and it must have been very Soon they will enter the vision of Chang Haonan and Yan Zhongcheng. ?Du Yishan quickly found Liu Zhenxiang, who had been working in the field of aviation power for many years. Although the latters research focus in the past ten years was actually aero-engine testing simulation equipment rather than the aerospace engine itself, he quickly saw the potential of Yu Feis research direction. ?Of course, the word potential alone is definitely not enough for Yu Fei to directly join the 83rd Project. Even with Du Yishan''s personal recommendation, Chang Haonan passed the review by solving the wing flutter problem for the MA60 and became a member of the core circle of the entire August 3rd Project. . You should know that on the second day after he and Yao Mengna arrived in Shengjing, they were led by Lin Shibuan to participate in the project progress seminar. ?This kind of meeting seems to be very frequent and inconspicuous, but there are still only a few people who can actually participate in the meeting. ? Even many engineers from the 601 or 606 Institute who were not deeply involved in the August 3rd Project did not have such a high right to know. So after discussing it for a period of time, Du Yishan and Liu Zhenxiang decided to let Yu Fei participate as a peripheral researcher. In other words, he can cooperate with Chang Haonan (or Yao Mengna), but he will not join the project team for the time being. Confidential information above a certain level involved in the scientific research process needs to be declassified before it can be sent to him. ?Although the 83rd Project is advancing at an unprecedented speed, some things will come faster. The fifth radar regiment of the East China Sea Fleet Aviation Force. Report to the battalion commander, the signal has appeared again! A radar soldier shouted excitedly behind him. ??The major officer who was resting on the table suddenly woke up when he heard these words, rubbed his bloodshot eyes, and came behind the radar soldier. The circular display of the early warning radar showed an echo signal lingering about 150 kilometers away from the coastline. Still no transponder on? An aircraft transponder is an electronic device mainly used for air traffic control. When it receives a radio interrogation signal, it automatically responds so that secondary radar on the ground can learn the position of the aircraft. According to regulations, civil aviation aircraft must turn on their transponders when flying in the air. No, and its still on the route that appeared several times before. This is not the first time this strange plane has appeared. ?Based on the battalion commanders experience, even with such an old-fashioned radar, he was able to determine that it should be a Boeing 707. ? And the previous few times, it had flown on the route from Tokyo to Manila in an orderly manner. Except that the transponder was not turned on, its performance was no different from that of a civil airliner. ??The radar battalion commander certainly considered the possibility that this was a reconnaissance aircraft. After all, it is a common tactic of the NATO air force to disguise a reconnaissance aircraft as a passenger plane, or to use fighter jets to cover it. In most cases, the reconnaissance party does not have the guts to fire on such a target. ?However, the P3C that is common near the eastern sea area cannot fly at this speed, and the E3 early warning aircraft or RC135 reconnaissance aircraft have obvious changes in appearance, so the echo signal will be larger. ?The battalion commander really couldnt think of anything else besides a Boeing 707. So the superiors just asked them to pay more attention and report back if there was any abnormal behavior on the plane. Of course, for similar situations, the safest way is to take off a fighter jet for visual tracking and confirmation. In this way, the situation can be accurately identified and emergency measures can be made for possible unexpected situations. Such as driving away or disturbing. But for the aviation units in the 1980s and 1990s, even a seemingly simple matter such as emergency takeoff in the face of air conditions was not easy to organize. Whether it is the aircraft readiness rate, pilot experience or the capability level of the ground handling units, the speed of aircraft dispatch will be limited. Of course there is another important reason, which is money. The aviation force does not have enough funds to maintain 1-2 aircraft in a hot state on standby at any time. Hence, by the time the aircraft is ready to take off, the target aircraft is already far away from the coastline. ?But today, the situation has changed somewhat. Battal Commander, the plane has deviated from the route. The sharp-eyed radar soldier was the first to notice the anomaly in the target position on the display: It seemed to have lowered its flight altitude, and thenstarted to turn back? "This is not turning back..." After all, the battalion commander was well-informed. He knew that this zigzag route was either anti-submarine or reconnaissance. Obviously, it is impossible for an aircraft to conduct anti-submarine warfare at an altitude of 9,000 meters. Set the target, Ill report it to my superiors! ??The battalion commander took out the military cap from under the rank on the shoulder of the camouflage uniform and put it on his head, and then quickly ran out of the command room. In this era when even the concept of flat command is immature, the chain of command under normal circumstances is quite complicated. Fortunately, it was not the first time that plane appeared, and the aviation force of the East China Sea Fleet had made some preparations to deal with it within its capabilities. ??The plane has been hovering near that location. It''s just that every time you make a 180 turn, you will get slightly closer to the coastline. This gives naval aviation units an opportunity. About twenty minutes later, two J-7HH fighter jets, each carrying a PL-8 air-to-air missile, took off one after another and flew quickly towards the eastern coastline. The J-7HH is actually a J-7B that can carry PL-8 missiles and has been improved for use in high-salt environments. Radar naturally does not exist. Pilots can only rely on a pair of eyes to search for targets and rely heavily on ground command during combat. ?As for the early warning radar in the VHF frequency band, the detection range is far enough and even has certain anti-stealth capabilities, but the detection accuracy is indeed not ideal. ??Coupled with the lack of data link, relying on voice guidance itself has errors. So after guiding the two J-7s to the target, the remaining work can only be done by the two pilots themselves. Fortunately, they were lucky today. The weather was fine and cloudless, and the sun was in a favorable position. After conducting a search for about 10 minutes, wingman Chen Haisheng suddenly saw the dazzling reflection of the metal skin under the light at the low 8 o''clock position of his aircraft. "I saw!" About the update: I have been on a business trip these days, so I can only update twice a day for the time being. There should be another wave of updates after I return next week. In addition, I am considering whether to consolidate the update time around five o''clock in the afternoon. (End of this chapter) Chapter 99 Rebirth of Turbojet 14 (Part 1) (2-in-1) Chapter 99 The Rebirth of Turbojet 14 (Part 1) (2-in-1) After determining the target position, the two aircraft simultaneously performed a roll away and soon came to the vicinity of the suspicious aircraft. As usual, they sandwiched the target one to the left and one to the right for accompanying flight confirmation. . "Eagle 01 reports that we have discovered an aircraft..." Lin Kang, the lead pilot, looked at the aircraft not far away through the cockpit glass with a narrow field of vision. On the surface, this looks like an ordinary Boeing 707, but the stars and stripes on the vertical tail and the eye-catching letters "WR" under the flag undoubtedly indicate that it belongs to the US Air Force. ??Although the entire Chinese aviation force does not have a serious special aircraft at this time, Lin Kang, who has served for nearly 20 years, has never given up using various channels to collect various information about the imaginary enemy air force. Although this is supposed to be the job of intelligence services, not fighter pilots. ?This gives him some relatively obvious advantages when conducting similar accompanying flight verification tasks. ?For example, at this moment, he knew that "WR" represented the 93rd Air Control Wing from Georgia. But he did not find a similar model in his memory. After slightly lowering the altitude, Lin Kang finally saw the huge long fairing under the belly of the opponent''s aircraft. A reconnaissance aircraft on the Boeing 707 platform, it should be an electronic reconnaissance model, but it is not RC135. This is the first time I have encountered it. Understood, keep flying with it, and report immediately if it makes any further movements. ??A slightly nervous voice came from the radio. In fact, if the near-face-breaking conflict at the beginning of the year hadn''t woken up some people, there might not even have been an emergency takeoff in the face of aerial reconnaissance. ?The Chinese military, which is relatively immature in the field of sea and air confrontation, is actually not ready to face similar incidents in terms of technology and experience. ?Pilots like Rincons generation do not lack courage. But there is only courage. Courage alone is not enough. Compared with clearly defined territorial boundaries, the situation in the maritime and air domains is much more troublesome. The legal status of the airspace over the exclusive economic zone is a rather complex issue. There is no doubt that this is not airspace. Relevant provisions of international law state that flying or navigation in this area must respect the sovereignty, national defense and security of the other country, etc. However, these vague and metaphysical provisions are not operable. ?Hence, when countries face similar situations, they generally use non-force means to interfere and expel. Non-force means. It sounds harmonious and much safer. But just like in martial arts novels, the level required to open mountains and crack rocks is often not as good as the ability to retract and release freely. In actual operation, this is much more difficult than opening fire to shoot down the target. The plane still maintained its original route after turning a 180 turn. Requesting interference with the targets flight path! ?Lin Kang roared into the radio. Whether it is from the perspective of national dignity or intelligence security, he is unwilling to allow such a reconnaissance aircraft to fly for a long time more than 100 kilometers away from the coastline. There was a rustling sound from the earphones for a few seconds, and then a steady voice. Requesting approval, but the other party has not entered the airspace and cannot use weapons! Lin Kang naturally understood the relevant principles, but the commander of the 4th HNA Division on the other side of the radio was still worried that his best pilot would be impulsive, so he emphasized it again: Also, be sure to keep yourself safe! ?Lin Kangs mind flashed through many cases that he had seen in books or internal materials like a revolving lantern. Most of them came from the Soviet Air Force. ?In addition to more extreme cases such as the scalpel in the Barents Sea, the Soviets, who were extremely experienced in confrontation, naturally had other ways to deal with provocations from the NATO air force. ?For example, for heavy aircraft like Su-27 or MiG-25, when two engines with a total thrust of more than 20 tons turn on afterburner, the airflow ejected will affect most aircraft. ?Lin Kang didnt know if his little plane could do it, but he decided to give it a try. ?After a brief communication with Chen Haisheng on the other side, he adjusted the position and attitude of the aircraft, and pushed the throttle lever to the end with his left hand. The turbojet 7BM is really not an engine with excellent performance. The number displayed on the tachometer increased unhurriedly, which made the J-7''s action of passing by the reconnaissance aircraft almost lack of any aggression. ?Lin Kang again controlled the aircraft to keep flying in front of the target, but the mere 6.5 tons of afterburner thrust was really difficult to effectively interfere with a Boeing 707 platform aircraft. Correspondingly, the atmosphere in the cockpit of the E8C was much more relaxed. They were certainly no strangers to Lin Kangs actions to interfere with flight. Before 1991, the two had faced similar scenes countless times over Eastern Europe. But at that time, the situation was much more intense. ?Even once, an RC135 piloted by the captain, Lieutenant Colonel Albert, was interfered by a Su-27 at close range, and both right engines stopped in the air. ? It was 1988, and the entire crew was only about to die on the spot in the last 300 meters. Look at this little plane, it seems to be saying hello to us in a friendly way. ?The co-pilot looked at the fighter jet that looked very similar to the MiG-21 not far in front of him and couldn''t help but reveal a bright smile. Then it seems we should return the gift as a sign of friendship? ??Albert gently turned the steering wheel in his hand left and right, making a motion of shaking the wings. ??The three people in the cockpit burst into cheerful laughter. "I think the pilot must have received our goodwill." The flight engineer behind said. Lin Kang in the J-7 cockpit looked through the rearview mirror and saw the aircraft behind him shaking its wings provocatively. This movement made by a 150-ton aircraft cannot be called agile, but it undoubtedly means that it is in control of its flying attitude and is not affected at all. As if he was laughing at the little plane in front of him that was overestimating its capabilities. "grass" Even though Lin Kang had been well-educated since he was a child, he couldn''t help but curse in a low voice when he saw this scene. ?He reached out and touched the emergency fuel release switch in the air. When a large amount of aviation kerosene is released in a concentrated manner, it will give the following aircraft the feeling of being peeed. In addition to the psychological impact, it will also interfere with the pilot''s vision. Before flipping the switch, Lin Kang habitually looked at the plane''s fuel gauge. ?At the same time, the division commanders voice came from the radio again. Eagle, report remaining fuel. ? ?Lin Kang exhaled a sigh of relief. The remaining 40%. As a light fighter, the fuel capacity of the J-7HH has always been a huge problem. The maximum takeoff weight of the J-7 is only about 8.5 tons. In the transition state with an auxiliary fuel tank, the ideal range is less than 1,400 kilometers. By comparison, the Su-27 can carry nearly 9 tons of fuel alone, which is heavier than the entire J-7 aircraft. The distance from the airport to the mission airspace is removed, as well as the extremely high fuel consumption when flying with afterburner. There is really not enough fuel for Lin Kang to squander. Even according to the current situation, they will have to return in about ten minutes. Obviously the reconnaissance plane behind saw this and acted completely unhurried. Get ready to return, there will be two planes from the air force brotherhood to take your place. The division commanders voice was also full of reluctance ??The Air Force took off with the same two J-7s, and they also encountered the same problems as Lin Kang and Chen Haisheng. Facing the reconnaissance plane that was obviously malicious and loitering not far from their door, they had no choice. But if you are not willing to give in, what can you do? The performance of the aircraft will not change due to the subjective initiative of the pilot. J-7, in any case, can no longer hold up the sky of a huge country like China. Compared to the earth-shattering event at the beginning of the year, this incident did not cause much of a stir in the media on both sides of the Pacific. For most people, this is a very ordinary day. But for others, it is not. The news quickly spread within the scope permitted by the confidentiality level. Anyone with a clear eye can see that there is no problem with the naval aviation''s response. The problem is not having the right equipment. ? No matter how good the Su-27 is, if it does not have the corresponding aviation industry strength to provide maintenance and support, it will not be able to exert sufficient combat effectiveness. Even flying around is very difficult. And the aircraft produced by ourselves are really difficult to use. About a week later, at the end of a regular meeting, Yang Fenghao produced a press release. Of course, what happened will not be written clearly in it, but people here have basically heard about it. What makes everyone feel dazzled is the last sentence of the draft. Make full use of the accessibility of existing equipment, solve problems such as equipment deployment, network chain construction, and multi-domain support, and maximize the combat performance of equipment to promote the overall improvement of combat effectiveness..." ?Although it talks about positive things like military training and preparation for war on the surface, there is bitterness and helplessness between the lines. Comrades, every word here is poking our spines... ??Yang Fenghata looked at the members of the Turbojet 14 modification attack team and said in a slightly sad tone. The entire venue was silent for a moment. It was Chang Haonan''s intention to show the draft, but it was more appropriate for Yang Fenghao to say some things. Compared with high-profile mobilization rallies, this method has obviously better motivational effect. As the saying goes, you should be polite after hearing it, and be brave after knowing your shame. Although no one took the initiative to express their opinions, the work efficiency of the entire research team has risen to a higher level. The next night, the Mach number contour maps and wall limit flow spectra corresponding to several typical rotor/stator blade stacking line designs were sent to Chang Haonan, who had been waiting for a long time. In the original plan, this should be the last part of the regular research step. After this, you can start optimizing the compressor blade design to maximize the surge margin. ?However, he did not feel any relief from this. Because last week, Du Yishan from the capital contacted 601 institutions. A research team from Bingcheng University of Technology found that flow loss can be reduced by opening a gap between the pressure surface and suction surface of the compressor blade. Relevant experimental data were quickly mailed to Chang Haonan. After receiving the information, he spent one night conducting a simulation on an ideal stage35 compressor model. Combined with the data provided by Associate Professor Zai Fei, it can be determined that this phenomenon is real. However, it is always simple to study a single independent variable on an ideal model. To apply it to actual design, more realistic factors need to be considered. ?Especially after the turbojet 14 compressor blades were improved by Chang Haonan, they will inevitably have a large number of bending, twisting and sweeping designs, which in turn leads to a huge gap between the actual flow field and the ideal two-dimensional flow field. Looking at the data submitted in front of him, Chang Haonan faced such happy troubles for the first time There are so many ways to improve performance, should we use them all? Compared with the swept design which focuses on increasing surge margin, blade slits can also reduce the total pressure recovery loss caused by the compressor, especially at a certain angle of attack. Although it has little effect on the maximum thrust of the engine on paper, it can significantly improve the performance and stability under harsh air intake conditions. This is what the J-8-3 needs most at present. Only children make choices As an adult, he naturally wants it all. But on the other hand, Chang Haonan had never come into contact with jet slit-related theories even before his rebirth. This was completely new knowledge to him. Since the current project being carried out by the system only considers modifying the blade shape, if you want to temporarily add a new independent variable, you have to rely entirely on yourself. With Chang Haonan''s current proficiency in numerical simulation, this job is not impossible. But without the work efficiency buff provided by the system, there is no guarantee of progress. Fortunately, this trouble did not last long. Because early the next morning, Yao Mengna found Chang Haonan who had been sleeping in the computer room for two nights. Junior, regarding the issue of blade slits, I have a few areas where I need your help. Help? ?The sleepy-eyed Chang Haonan turned his head back in confusion, his bloodshot eyes startling the latter. After a few seconds, he finally came to his senses: Wait...meaning you have already studied it before? This is definitely an unexpected surprise. Well, actually before Teacher Du contacted us, I had already seen the article published by Tao Feis research group in a journal, and I have been studying it for about two weeks, but..." Speaking of this, Yao Mengna was a little embarrassed and smoothed her hair: Its just that Ive been stuck in the accelerated convergence part of the simulation method, so the data I got is very limited. Originally, I wanted to see if I could complete research on a topic independently without relying on your guidance, but...compared to my own obsession or face, the progress of the project is more important. ?Although Yao Mengna found many reasons to convince herself not to ask Chang Haonan for help, people can''t deceive themselves. ?She knows very well that the most important reason is her obsession with proving her ability Even if you cant compare, you cant be left too far behind. What really made Yao Mengna decide to let it go was the draft that Yang Fenghao took out at the end of yesterday''s meeting. When she read the last paragraph, she realized that she seemed a little too narrow-minded. There are many ways to prove yourself and there are many opportunities. At this critical moment, we must focus on the overall situation. I should have told you about this when I received Teacher Dus call last week. Im sorry. No, its okay, or rather, you came at the right time. ?Chang Haonan stood up and strode to Yao Mengna''s side at the door: Take me to see your results. After such a long period of cooperation, he probably knows Yao Mengnas abilities in the field of numerical calculations. Since the other party said that the part he was stuck on was that he did not know how to accelerate convergence, it means that the entire simulation idea should be OK. If improvements can be made on this basis, the amount of work that needs to be done will be much smaller. Perhaps even some useful analytical conclusions may have been drawn. The two of them soon arrived at another computer room not far away. Its all in this. Yao Mengna pointed to the workstation that was still on and in the process of calculation: Im really new to numerical simulation in the unix environment. Can youcan you slow down the operation a little bit later? I want to see where my problem lies. "Of course you can, but... don''t rush the operation now. I''ll take a look at the data you calculated during this period." Chang Haonan said as he walked forward, stopped the ongoing simulation process, and called up the previous results for analysis. (End of this chapter) Chapter 100 Rebirth of Turbojet 14 (Part 2) (2-in-1) Chapter 100 The Rebirth of Turbojet 14 (Part 2) (2-in-1) ?Chang Haonan has good luck. Or it can be said that Yao Mengna is very lucky. Although due to the problem of convergence speed, she did not actually get many complete results. ?However, Chang Haonan still found an unexpected joy in it. And it is done with the naked eye. ?In the numerical simulation of aeroengines, due to the very complex structure of the multi-stage axial flow compressor, it is very difficult to directly perform numerical calculations on the multi-stage axial flow compressor, and there are many limitations in modeling and calculation. ? Even if you force the calculation, it will not be possible to understand the vast number of results overnight. Fortunately, after this period of training, Yao Mengna has become very proficient in model simplification. Since the multi-stage axial flow compressor is composed of many "stages" with similar structures, the interaction between multiple stages can be ignored during the study, and a single stage can be calculated and analyzed. Optimizing a single stage means that the entire compressor has been optimized. The flow inside a single stage is still relatively complex, and further simplification is usually required. Neglecting the work done by centrifugal force on the fluid, and assuming that the flow at different heights along the radial direction is the same, the three-dimensional flow in the "stage" can be simplified into two-dimensional primitives. level flow. For most aerospace engines, including turbojet 14, a basic stage of the compressor consists of a moving blade cascade and a stationary blade cascade. Hence this numerical simulation, which is only half-way through, the research object is very clear. ?Chang Haonan did not spend too long to discover the key points. Senior sister, go and call the forest workers. The priority of the blade slit problem needs to be raised. If our efficiency is high enough, we should still have time to use it on the turbojet 14. ??As he spoke, he took out a notebook and pencil from his pocket and began to record some key data on the screen, obviously preparing for a big fight. "ah?" ? Yao Mengna, who felt guilty that she had delayed her progress, had been standing cautiously behind her. After hearing Chang Haonan''s request, she raised her head unexpectedly and was stunned for about half a second before she realized what she was doing. Oh...Okay, Ill go right away! After saying that, he turned around and ran out. ?In her expectation, Chang Haonan would start making modifications immediately after reading the code. If he was in a good mood, he would probably make modifications while explaining his ideas to her. However, she never expected that the other party would find something useful directly from the incomplete calculation results that she thought were of little value. She recalled that the first thing Chang Haonan did after entering the door was to stop calculating and then immediately start analyzing the data. Junior brother, does he actually trust me so much... Yao Mengna felt a touch of emotion in her heart, and her steps became more brisk, and her originally heavy mood became much lighter. Even after he opened the office door, his tone of voice when talking to Lin Shikuan couldn''t help but have a slightly rising tone: Forest worker, Chang Bo wants you to come over there! Oh, okay, Ill go gather a few other people. ?Lin Shikuan quickly got up and went to find his other subordinates. ?From Yao Mengna''s unstoppable smile, he logically concluded that there must be something good going on. Perhaps the progress of compressor improvement has accelerated again? The research progress is ahead of the schedule. He could not even dream of it before. But it is indeed something that has happened frequently in the past month or two. So much so that although the wings and power of Project 83 have been or are undergoing radical improvements, the overall progress of the project has not fallen behind because of this. ?Thinking of this, Lin Shikuan''s own mood improved a lot, because the fatigue caused by working overtime in recent days was almost gone. Although since Chang Haonan and Yao Mengna came to this computing center, his status as the team leader has almost existed in name only, but after all, he has legs to hug, and other people in the 83 Project have gradually changed their view of their digital design team from contempt to contempt. Got respect. ?In this case, not only did he not feel like he was being "emptied out" at all, he even wished he could give up his position in exchange for the two great gods being able to protect him all the time. In short, on this ordinary morning, the entire computing center seemed to be filled with a happy atmosphere. ?So when Yao Mengna and Lin Shikuan and others returned to the computer room, Chang Haonan turned around and saw several smiling faces appearing side by side. ?He tugged at his hair in confusion. You...are you happy about anything today? After all, in recent times, as the deputy leader of the temporary research team who actually presides over the work, he himself feels that he has gone too far in pushing team members. ?Especially for a few people in the digital design team, they are under a lot of pressure because they have to look down and not look up every day. It has been a long time since I showed such a relaxed smile. ?Chang Haonan certainly didnt know how much drama Yao Mengna had added to herself in just a few minutes. Because at the beginning, he really looked at the data with the mentality of digging for gold in shit. The original purpose is just to see where the latter has been calculated, so that subsequent improvements can be made. It''s just that he actually found it. The progress has been accelerated again, of course its worth being happy about. Lin Shikuan replied without thinking: We are ready for the next stage of work! Chang Haonan nodded, assuming that Yao Mengna had just understood what he was doing and told Lin Shikuan and others, so he didn''t ask any more questions, turned around and walked to the blackboard on the other side of the computer room to prepare for allocating tasks. Having a positive attitude is always a good thing. Now we need to put aside the work at hand. Chang Haonan knocked on the blackboard, attracting everyones attention: "I need to calculate the Mach number distribution, static pressure distribution and limit streamlines of several typical design points under the two-dimensional element level model before and after the gap between the blade pressure surface and the suction surface, plus the blade tail The entropy distribution of edge. The specific calculation method is no different from before, and because it is a simplified model, it should not be difficult, but the workload will be more. As soon as Chang Haonan said this, he heard a gasp of air coming from behind him. ifier The smiles of Lin Shikuan and others froze on their faces: Both moving parts and stationary parts are counted? The moving blade cascade and the stationary blade cascade play different roles in the compressor, so the previous calculation of the wall limit flow spectrum of the blades with different swept designs brought almost double the workload, which was very torturous. No need, just count Jingzi. Chang Haonan made a gesture on the compressor structure diagram hanging on the blackboard: I looked at my sisters previous calculation results. In the model of the same compressor stage, the effects of stator slits and mover slits are almost the same, so she helped us reduce the workload by half. "I" Yao Mengna had an expression on her face like "Why didn''t I know I was so powerful?" But I felt the grateful looks from everyone, and knew that now was not the time to explain. After calming down a little, she gradually realized that the gap between herself and this junior brother was not just in the ability of numerical simulation. Whats more important is the mentality. Because they are too eager to prove themselves, they only focus on the goal at the end point, but ignore other results that may occur during the research process. ?Thinking of this, Yao Mengna''s expression became serious.????She knew that she had not been like this before. ??If we follow the plot analogy of martial arts novels, her recent state is a bit like being possessed. If it cannot be discovered and corrected in time, the development may even lead her to go astray on the road of scientific research. ?Yao Mengna looked at the keyboard in front of her and breathed a sigh of relief: Fortunately ?Just as Yao Mengna was introspecting, Chang Haonan, who had been arranging tasks smoothly just now, suddenly stopped. "etc" ?While muttering to himself, he walked back to the monitor of the workstation and looked at the data on the screen again. A few minutes later, he took out his pencil and notebook again, and began to calculate on them while everyone behind him looked at them blankly. It is of course impossible to calculate the complex numerical simulation process by hand, but the post-processing of the numerical simulation results is still within the range that the human brain can complete. ? Many people have a feeling when they are in school that even though a question, especially a difficult problem, has been solved, they can still deepen their understanding in the process of explaining it to others. Even many details that you didn''t notice when you were solving problems will be noticed again. ?Chang Haonan has just entered such a state. In a flash of inspiration, he seemed to have thought of a better way to groove. Ten minutes later, Chang Haonan stopped writing. Senior sister, according to the research of the research group at Bingcheng University of Technology, after the blades are slotted, will there be obvious performance advantages only when the angle of attack is relatively large? ?Although she didn''t know what she was going to do, Yao Mengna still nodded. She has almost memorized the content of that article: "When Ma=0.4 and the incoming flow angle of attack is 0, the total pressure recovery coefficient is only improved by 7% compared to not notching, and if the Mach number is increased to Ma=0.6 , when the incoming flow angle of attack is 0, the total pressure recovery coefficient of the slotted blade is reduced by about 1%. "That''s right." Chang Haonan excitedly slapped the pencil in his hand on the table: "Comrades, I need to revise the task I just assigned!" After finishing speaking, he came to the blackboard again. The basic principle of this jet gap is that the mixing loss competes with the blowout effect. When the mixing loss is greater, the total pressure recovery coefficient decreases, and vice versa. Chang Haonan said as he picked up the chalk and slightly modified the blade diagram on the blackboard, changing the original straight jet slit into two corners. We can use these two arcs with different concave and convex directions to form an S-shaped jet slit. The S-shaped slit is a convergent expansion channel, which can further accelerate the air flow and improve the jet effect. Moreover, the modified air flow inlet and outlet direction is closer to the mainstream direction, and can also reduce the mixing loss. ?The people below stared dumbfoundedly at Chang Haonan, who was in front of the blackboard, modifying the design on the spot using pen calculations. They have become accustomed to this person''s various magical operations, but they still feel a sense of unreality when faced with this situation. In the end, it was Yao Mengna who understood her meaning first: So this S-shaped jet slit can have a very good effect even in level flight? Thats right. ?Chang Haonan''s own tone was also filled with excitement. ?Such a flash of inspiration is of course not uncommon when there is help from the system. However, this research on jet seams was not included in the system generation project. ??And it was not a field that he had been involved in before his rebirth. In other words, it appeared entirely due to the improvement of Chang Haonan''s own abilities. ?After such an "epiphany", Chang Haonan became more comfortable with the improvement work of the turbojet 14. ?According to the original fault analysis, the location where the surge was induced was above the secondary rotor blades of the high-pressure compressor. ?Hence, his subsequent curved sweep design optimization was mainly aimed at the moving blade cascades of a total of 7-stage high-pressure compressors, and no overly complicated modifications were made to the stationary blade cascades whose main function is to compress the incoming flow. As it happens, that magical S-shaped jet slit can be set on the stator blade cascade. This makes it possible to divide labor in two parallel ways. Development progress*2 ?So only half a month later, an almost brand-new turbojet 14 engine design was finally presented to everyone. Although due to project schedule issues, the design of the combustion chamber and turbine has not changed. However, as one of the three major components of the core engine and the most criticized part of the turbojet 14 in the past, the high-pressure compressor part has been completely changed. ?Submitted together with the design plan, there were also schematic diagrams of the compressor performance and flow field structure that Chang Haonan and his digital design team spent more than a week working out. And the most fundamental purpose of this large-scale design improvementcompressor universal characteristic curve. Compared with before the improvement, the surge margin has increased by a full 25%. Even if severe operating conditions similar to those of the last No. 01 prototype occur again, the new turbojet 14 engine can maintain normal operation on the common operating line without causing surge. ??More importantly, after a lot of modifications, the compressor design of the turbojet 14 no longer shows any trace of the P11-300 and "Spey". It truly becomes our own engine. Yan Zhongcheng stretched out his hand and tremblingly touched the computer screen with the overall design drawing of the compressor. This is Kunlun. This should be our Kunlun Chang Haonan stood aside and looked quietly at Yan Zhongcheng, who was almost in tears. ?In the original timeline, due to limitations of objective conditions, although the turbojet 14 engine was not discontinued along with the 83rd Project, it was not until almost ten years later that a relatively stable design was developed. By that time, the J-8 series had been discontinued, and the Chinese Air Force no longer needed a turbojet engine with a thrust of 7.5 tons. ??Although the QD series gas turbines based on the turbojet 14-core engine have achieved certain success in the field of power generation, it can be regarded as giving this ill-fated aerospace engineering project a justifiable end. But there are still regrets after all. Such a regret will never happen again. There can be no more. The business trip is over, updates will be resumed next week (End of this chapter) Chapter 101 Can I go to the air show? Chapter 101 Can I go to the air show? ?After confirming that there were no problems with the improved design plan, Yan Zhongcheng signed his name on the document confirming the production of two improved turbojet 14 engine prototypes. As mentioned before, due to the very complex structure of the multi-stage axial flow compressor, even Chang Haonan has no way to conduct accurate calculations and simulations of a jet engine with a complete structure and without model simplification. So the specific performance of this new reborn turbojet 14 still needs to go through a series of tests to know. The two prototypes, code-named 010001 and 010002 respectively, were produced for high-altitude and aerial platform testing respectively. Generally speaking, the time required for this process can range from a few months to a few years. Fortunately, the turbojet 14 that has undergone major changes is still a turbojet 14 after all. Although the test items are indispensable, the test process will definitely be faster than A truly new engine is faster. If you count the time ?Chang Haonan was stunned for a moment, and then realized that he didn''t even know what day it was today. Habit is indeed a terrible thing. Because he has always grabbed his phone to look at the date for the past ten years, so even though he has been reborn for several months, he still often forgets the specific date. ?Especially in recent times, he has been working overtime continuously in a windowless computer room, which has made him almost lose the concept of day and night. Thinking of this, Chang Haonan turned his head and prepared to take a look at the calendar hanging behind him. At this time, Yao Mengna was standing behind him, and she happened to be casting her gaze in this direction. The two of them looked at each other. ?The other person''s height is almost the same as him, completely blocking his sight. ?But before Chang Haonan could adjust his position, Yao Mengna lowered her head as if she knew what he wanted to do. Today is September 13th. Chang Haonan quickly ran through the basic processes of ground and air simulations in his mind, as well as how long each project is expected to take. If everything goes well, we should still be able to catch up... Because he was so focused on thinking, he didn''t even notice that he whispered what he was thinking. What can catch up? ?Yang Fenghata, who was standing nearby, asked in a somewhat puzzled tone: If you are talking about the finalization node, there are still nearly two years left. With your efficiency after joining the project, it shouldnt be a problem, so dont worry. After speaking, he patted Chang Haonan on the shoulder, indicating that he could relax. ?The stereotype Yang Fenghao refers to naturally refers to the design stereotype. According to the "Conventional Weapons and Equipment Development Procedures" issued by the four ministries and commissions in 1995, the development of conventional weapons and equipment is divided into the demonstration stage, program demonstration, engineering development stage, design finalization stage and production finalization stage. ?Chang Haonan and the others are currently in the engineering development stage. Under normal circumstances, after the design is finalized, small batch trial production can be arranged and equipped with troops. As for the finalization of production, it can only be completed after problems are continuously discovered and solved during the process. It is difficult to give a specific time point. Taking into account the production process, sometimes the replacement speed is very fast. Therefore, in actual operation, the small batch production of many weapons and equipment models is not "small" at all, and there may even be situations where the products have completed the entire life cycle and are withdrawn from active service but have not yet completed production. So in most cases, when a project reaches the design finalization stage, it can basically be considered complete. Other people around him also cast their eyes with affirmation and approval. If the modification of the wing design only made him somewhat famous within the 601 Institute, then the design modification of the Turbojet 14 spread the name Chang Haonan to almost the entire project team of the 83rd Project. . "Uh... no, there is really no big problem with the design." Chang Haonan shook his head and said that this was not what he was thinking about: Im wondering, if the test results of the turbojet 14 go well enough, will the J-8-3 be able to catch up with this years air show? Thats right, this is the main reason why Chang Haonan has been closely following the progress of the August 3rd Project from the beginning. Xiangzhou Air Show, also known as China International Aerospace Expo, will become one of the top six air shows in the world in the future. But when we first applied for this air show, the core starting point was actually that Xiangzhou City, with a population of just over 900,000, wanted to apply for the construction of a super-standard airport with a 4,000-meter runway. ?There has to be a reason. ? As a result, Jinwan International Airport was successfully completed, but the air show that served as the reason was not officially approved until 1995. So much so that the domestic aviation unit was almost unprepared for this. In the end, they only sent a J-7MG, the export version of the J-7E, for a flight demonstration, and a J-8IIM, which had just made its first flight at the beginning of the year, for a ground display. ?Even so, Chang Haonan still clearly remembers the excitement and excitement when he and a group of classmates saw the J-8IIM in a magazine. After all, this aircraft using Russian-made avionics can launch R27 air-to-air missiles like the Su-27. Later, when I started working, I learned that a J-8IIM flight show was originally scheduled. However, the exhibitor''s left engine stopped mid-air during the transfer flight to Xiangzhou, and had to go to Jiangcheng for an emergency landing. In the end, another aircraft temporarily took over. , the flight show was naturally cancelled. It was not until the second air show in 1998 that the J-8IIM and the J-H-7, known as FBC1, made up for this late performance. Therefore, in the original timeline, the most dazzling stars of the first Xiangzhou Air Show were a Su-27 and a Su-30MK on static display. But this time, the situation is different after all. The heavily modified J-8-3 and the turbojet 14 with more stable performance. ?Although it is still unable to fully compete with the third-generation heavy fighter on the card, at least it will not be completely overshadowed by others. Air show? Everyones first thought is basically that Chang Haonan got the time wrong because he worked continuously for a long time. ?When mentioning air shows in this era, the first thing that comes to mind is definitely the Paris Air Show and Moscow Air Show held in odd years, and the Farnborough Air Show and Singapore Air Show held in even years. ? Among them, the Singapore Air Show is held in February of even-numbered years, so it is impossible to make a mistake. However, the Farnborough Air Show in the United Kingdom, which is held from the first to the second week of September every year, is closer in time. But the Farnborough Air Show was just held two days ago? Someone next to me reminded him in a low voice. Its not Farnborough, Im talking about Is it Xiangzhou? ??Yang Fenghata was the first to react. Yes, Xiangzhou Air Show. ?Chang Haonan nodded and continued: Our August 3rd Project is a competitive machine that has been personally instructed. If it can be unveiled at our countrys first air show, it will definitely be very exciting. Hearing this sentence, the eyes of everyone present instantly lit up. Who doesnt want the aircraft he or she develops to attract worldwide attention? "If I remember correctly, the Xiangzhou Air Show should open in early November, which means there is still time left for us..." Less than two months. (End of this chapter) Chapter 102 Production preparation Chapter 102 Production Preparation ??When Yang Fenghao said that he only had less than two months to prepare, many people''s expressions turned to regret. Although the aircraft for the air show do not have to be finalized. In fact, it is a common practice in countries all over the world to display models that are in the process of flight testing. However, it is still necessary to ensure that the model has basic stability and reliability. sex. Its originally about showing your face, but it would be bad if your **** is exposed. ?However, it is already mid-September, and they have not even started manufacturing the prototype of the improved turbojet 14. ?Looks like its going to be hard to catch up But no one was willing. It would be fine if no one mentioned it, but after Chang Haonan mentioned the matter of participating in the air show just now, the idea has taken root in everyone''s mind. I think Comrade Chang Haonans idea is completely feasible. After a long time, Liu Ming, the deputy chief designer on the other side of the room, was the first to speak up: We can be prepared for this matter with both hands. If the test work of the improved turbojet 14 goes well, then after installation, we can at least catch up to the end of the air show, which is enough for us to conduct a flight show. Hearing these words, the people in Institute 606 all showed somewhat embarrassed expressions. The words "all goes well" have never happened in China''s aviation power field. Although the improvement work this time is progressing very quickly with the help of strong foreign aid, the expectations set by everyone are still relatively realistic. ?However, Liu Ming naturally prepared a second plan: "In addition, even if the testing work of the improved turbojet 14 has not been completed by then, we can still settle for the next best thing and use the old model engine to transfer the aircraft to the ground for ground display, which can be regarded as giving China a chance to compete. The atmosphere in the conference room suddenly became lively again. This should work Indeed, the original turbojet 14 is still fine if it is just flying around..." The ground demonstration is also here, which at least shows that we can still build the aircraft even without the help of the Americans..." We are all engaged in military industry and have some understanding of the current situation. In the conflict at the beginning of the year, facing a powerful enemy at its peak, we were indeed at a disadvantage. So now we need an opportunity to boost people''s hearts and morale. ??The Xiangzhou Air Show is obviously a good choice. ?Yang Fenghao also turned to look at Chang Haonan: "what do you think?" Chang Haonans plan is naturally to complete the simulation test of the new engine as quickly as possible, and then conduct a flight demonstration in one step. But he never liked to talk too much, and the plan proposed by Liu Ming also took into account various situations and there was no problem, so he nodded: We must prepare for the best and prepare for the worst. After a pause for about a second, he continued to explain: That is to say, the prototype production and testing of the new turbojet 14 engine must be carried out as quickly as possible, but the psychological construction must be done so that it can only be displayed on the ground. ?Yang Fenghao, Liu Ming and Yan Zhongcheng had a brief exchange and all expressed their agreement. Then, I will communicate this matter with my superiors. Yang Fenghaos tone became serious: The 606 Institute pays attention to the connection with the 410 Factory, and the production progress of the two test prototypes needs to be improved. Yan Zhongcheng handed the document he just signed to the secretary next to him, then stood up: No problem, because this improvement only involves the compressor part, so the 410 Factory only needs to re-manufacture the compressor part according to the new plan, and I will handle the docking work myself. With the issuance of instructions one after another, the entire Project 83 project team started to get busy again. According to Yang Fenghao and Yan Zhongcheng, Chang Haonan actually does not need to do anything during the prototype production stage, so he can rest for a few days. After all, anyone can see that during this continuous period of time, he was actually the one with the biggest workload. "You are now a major contributor to our August 3rd Project. If I tire you out, Lao Du will probably come to me to fight for your life." ?Yang Fenghao held the teacup and said to Chang Haonan cheerfully. Since he took over the charge of the August 3rd Project, he has not been as happy and relaxed as he has been in recent times for nearly ten years. Although they discovered two design flaws in the wing and engine in just over two months, the problem was solved quickly and easily because of Chang Haonan. ?Chang Haonan did not reject the kindness of the two seniors, but he still made a new request: Its okay to take two days off, but I still want to find some time to go to Factory 410 to see the production and manufacturing process of aviation engines. In his last life, he did not have much knowledge about the field of aviation manufacturing. As a military screw, this is understandable. He only needs to complete his own work. But now, as his influence on the entire Chinese aviation industry is growing, there are naturally more and more things that need to be paid attention to. Of course, for the original turbojet 14, the manufacturing process and material level are not considered shortcomings - after all, there is still a more backward design level to cover the bottom. But for the improved turbojet 14 and the turbofan 10 that must be overcome in the future, production and manufacturing are a completely unavoidable problem. You must prepare for a rainy day. ??Although Yan Zhongcheng didnt know what Chang Haonan was thinking, he still nodded decisively: After all, you are the main designer of the new turbojet 14. Of course there is no problem in going to the 410 factory. However, if you want to enter the production workshop, considering safety issues, no matter who we are, we must follow the arrangements of the person in charge of the workshop. Thanks to the work of the digital design team, the improved compressor has been fully parameterized during the design process. Therefore, the connection between the 606 Institute and the 410 Factory was very smooth. Chang Haonan only rested for two days before he was informed Production work on the prototype has officially begun. The person responsible for taking Chang Haonan to visit the production process was Zhong Shihong, who had met him once before. The latter is also a member of the turbojet 14 modification attack team, but because Chang Haonan was mainly responsible for numerical calculations and blade design, he did not have much contact with him. Is this the production of new compressor blades? Chang Haonan looked at the CNC machine tool in front of him. A piece of blank was being processed inside, but he couldn''t see what the product was yet. Thats right, its a compressor rotor blade. Zhong Shihong nodded: "Actually, you also know that because the compressor is a cold-end component, it is generally not difficult to produce. It is mainly milling. The key points are mainly machining accuracy and stress relief. Relatively speaking, it is still a hot-end component like a turbine. End parts are more difficult to process, but there are currently no production arrangements for this. It doesnt matter, Im just here to intuitively experience the production process of aero-engines, so that I can consider the convenience of manufacturing in advance when designing in the future. It would be best if possible. While the two were talking, Chang Haonan noticed out of the corner of his eye that in an inconspicuous corner of the workshop, there seemed to be a lot of finished products piled up. But the blade detection area should be in the other direction. "What are those?" Chang Haonan asked, pointing in the direction of the corner. Additional updates will be made in the afternoon as usual (End of this chapter) Chapter 103 Creating problems (Additional updates for monthly ticket financier flankerr Chapter 103 Creating Difficulties (Update 18 for monthly ticket financier flankerr) Following the direction pointed by Chang Haonan, Zhong Shihong quickly saw the leaves piled in the corner: Oh, those are basically waste products that have been damaged or failed to pass the test, and are judged to be unusable. Scrap? Chang Haonan was stunned: There are so many? ?Although it was far away, he could still vaguely see clearly. There were at least hundreds of leaves there. For a factory with full production capacity, this quantity may not be much, but in recent years, the army''s order quantity has been insufficient, and production has to be divided between Zhucheng and Shengjing, so a large part of the 410 factory''s production capacity is at in idle state. After this calculation, the yield rate does not seem to be optimistic. Is it said that the production of compressor blades is not difficult? Wellits actually not much. These are the amounts accumulated in the past six months, and they also include Turbojet 13 and Turbojet 7. They are all piled up there. Zhong Shihong explained as he took Chang Haonan over directly, and then picked up a leaf from the ground: Originally, these things should be disposed of regularly, but one of our engineers is currently studying the use of surfacing technology to repair these damaged scraps, so we left some of them for him. Are these just part of it? The latter was a little dumbfounded by the spectacular sight in front of him. After a while, he asked: Then what is our overall yield rate? Well...the pass rate of one-time CMM inspection is about 60%, but there is still part of the remaining 40% that can be saved. Overall, it can reach about 80%, and in good times it can reach 85%. As the Minister of Technology, Zhong Shihong naturally knew these data very well and reported the answer almost without thinking. At the same time, he casually handed the blade he just picked up to Chang Haonan. So high? What about these The latter turned it over and looked at the waste product in his hand, but it was really difficult to see what was wrong with the naked eye. The yield rate only considers the processing process. Zhong Shihong fixed the hat on his head: Most of the blades here are damaged during assembly and testing. At present, most compressor blade materials are only martensitic stainless steel, and at most low-grade ordinary titanium materials such as Ti-6Al-4V are used. We are familiar with the milling of these materials, and at most add a few stresses. The release process only affects some production efficiency. "But you know, our country''s aero engines borrow a lot from Soviet design, so some riveting structures are used in the assembly process of blades, discs and casings. The material of these aviation fasteners is generally Soviet-labeled B16 titanium alloy. That is, Ti-3Al-5Mo-4.5V, which is relatively new to us and is prone to problems in production, processing and assembly. " Thats it Chang Haonan understood clearly and secretly wrote down what Zhong Shihong said. Chinas research on titanium alloy materials itself is not too late. Titanium alloys such as TB2 and TC4, which are used in large quantities in the aviation field, were basically domestically produced in the 1960s and 1970s. ?Including the 16 just mentioned by Zhong Shihong, its domestic model TC16 titanium alloy was also born around 1990. But the problem is that just a piece of material is useless. Producing titanium alloy rods is only the first step in a long journey of thousands of miles. To take a step back, even for the latest brands of products such as the United States'' Ti1100 and Russia''s B36, the blanks themselves do not restrict exports. As long as they are willing to spend money, they are not difficult to buy in most countries (such as India). However, each different material, due to its different physical and chemical properties, requires corresponding treatment and processing technology before it can truly become a usable product. These processes are almost impossible to obtain through imitation, and they are also the real technical barriers. Obviously, Factory 410 is stuck in these two links. Subsequently, Chang Haonan visited several other processes under the leadership of Zhong Shihong, but he was always thinking about the pile of waste products just now. Finally, when he saw the riveting assembly process mentioned before, he couldn''t help but ask: "Speaking of which, since our compressor is already a completely new design, shouldn''t we consider abandoning the riveted structure and completely switching to mortise and tenon joints? Moreover, it can also reduce the work of the compressor by forming a transition fit or a small gap fit between the tenon and the tenon groove. The vibration of time is also higher. Although it was Chang Haonan''s first time to watch the production process of an aero-engine live, he knew very well with the knowledge and experience of later generations that even in Soviet-made engines, the use of rivets as blade fasteners was definitely a gimmick. Coincidentally, this is the engine used in the R11F-300 engine introduced with the J-7. This question really made Zhong Shihong look at Chang Haonan with admiration.?????At least it shows that the latter is not just coming to the factory to show off, but actually has a certain understanding of production and processing. "Of course we have considered replacing riveting with tenon joints, but the processing of dovetail tenon is very difficult, and the pressure surface tenon as the assembly reference requires broaching, which requires a special combination broach. Due to the ban on sales, currently There is no way to purchase in bulk through formal channels. Obviously, when God closes a door, he often seals the windows. ??So for the Chinese military workers who are groping forward in the ups and downs, if they want to find a way out, they have to find a way to lift the roof. Its forbidden to sell... Chang Haonan raised his head again and looked around, and found that most of the processing equipment here was imported from Germany or Japan. ??Although the famous Paris Coordinating Committee was disbanded in 1994, its list of prohibited items was inherited by the Wassenaar Agreement almost intact, and the embargo pressure faced by China has not diminished. You must know that Batumis embargo list lists nearly 600 more items for China alone than for the Soviet Union before its disintegration. For example, high-precision multi-axis machine tools can be exported to the Soviet Union, but not to China. Yes, in fields such as mechanical processing, there is indeed a big gap between us and developed countries. Zhong Shihongs tone was full of helplessness: We have also tried to use domestic cutting tools to replace imported ones, but neither the processing accuracy nor the service life meet the requirements, and they can only be used to process some things that do not require high precision. Having said this, he turned his head and looked at Chang Haonan next to him, and said half-jokingly: "During this period, I sometimes think, if there is a talent like you in our industry, it will be great." Thats good. Is this... ?Chang Haonan really wanted to say that it might not be impossible. After all, according to the current progress, the development of turbofan 10 will have to be officially put on the agenda as early as next year or the year after next. At that time, there must be many production and manufacturing problems that need to be solved by him. ??But after thinking about it, I finally didnt say it. For one thing, he doesnt know much about this field. On the other hand, the achievement conversion efficiency in the field of mechanical processing is also relatively low. So even with the help of the system, it is difficult to achieve breakthroughs in a short period of time like fluid dynamics simulation. In this case, it is better to let Zhong Shihong emo for a while first As long as I have no expectations, everything is a surprise. Besides the problem with the blade fastening method, do our factory have any other difficulties in the manufacturing process? ?Chang Haonan''s tone seemed to be just asking casually, but in fact he wanted to determine which aspect of knowledge he wanted to learn next. If you really want to say it, there are difficulties everywhere. Its difficult to pass every pass, and its difficult to walk step by step. Zhong Shihong smiled bitterly and shook his head: "But if I must say it, the current one is the manufacturing and testing of aircraft engine casings. Because it is a large overall thin-walled part, it is very difficult to cast. The current use of no-margin investment casting method has good yield and production efficiency. Very unsatisfactory. The other thing is the turbine blades. Because they are hot-end parts, the material requirements are much higher than those of the compressor. The turbine blades like the turbojet 14 also have air film holes that are required for active cooling, which is also very confusing to process. Headache." The third one is Listening to Zhong Shihong''s inventory one by one, Chang Haonan felt that his head was a little big... I''m going to my parents'' place for dinner tonight. I''ll add a chapter first, and the rest will be added in the next few days (the monthly ticket holder voted 83 times, so 8 chapters will be added) (End of this chapter) Chapter 104 New engine rolls off the production line Chapter 104 New engine rolls off the production line In fact, the reason why Chang Haonan was so anxious to come to the 410 Factory to check the engine production situation was that in addition to having an understanding of the domestic aviation power production level so that he could make some arrangements in advance, another very important reason was that he also remembered When I checked the test flight data of the No. 01 prototype before, I found that the working status of the two turbojet 14s on board was very unstable. If this phenomenon occurs only on the faulty unit, it can be considered as a sign before surge. However, the actual situation is that similar phenomena exist in both engines, even the two engines on the No. 03 prototype that Chang Haonan later went to check specifically. ??And the amplitude of instability is different. ?This situation means that the problem most likely lies in the manufacturing process. Although after increasing the surge margin of turbojet 14 by a full 25%, he can ensure that state fluctuations of this magnitude will not induce surge again. But its not enough. Surge margin is somewhat similar to the margin left in performance. The surge boundary line is the theoretical limit, and the common operating line is the artificial performance boundary set to ensure safety. The more stable the engine''s working condition, the shorter the distance between the two curves, which means that more actual performance can be "squeezed out" while the theoretical limit remains unchanged. After some previous improvements, the performance potential of the turbojet 14 is actually greater than before. So if the unstable factor can be found and solved, the actual performance of this engine can be further improved. ?But this matter is obviously not that easy. When Chang Haonan left the production workshop, it was already late at night. ??As a person who is not deeply immersed in the field of mechanical manufacturing, he really failed to find out which step caused the problem. We can only wait until the testing phase or even the later small batch trial production phase to slowly explore the problem. Fortunately, even if there are subsequent improvements in manufacturing, they will still be in the category of production finalization, so they will not affect the current work. ? One morning a few days later, a Y-8 transport plane painted in gray and white landed on the runway of Beiling Airport in Factory 112. The turbojet 14 prototype numbered 010001 had rolled off the production line from Factory 410 the night before and was shipped here overnight. It almost pinned the hopes of the entire 606 Institute and the entire August 3rd Project. In fact, when this engine was assembled and tested off the line, everyone had already discovered that it was different from the original design The weight of the entire machine under the national military standard has been reduced from the original 1150kg to 1040kg. The weight reduction of 110 kilograms may not seem like much, but for an aeroengine, every kilogram of weight is worthy of careful calculation. Not to mention it was reduced by 10% in one go. Even if other performance remains unchanged, the weight reduction alone is enough to bring the performance of the turbojet 14 to a new level. Whats even more exaggerated is that the main optimization direction of this improvement is not weight reduction. This 110 kilograms can only be regarded as a gift. Since the gifts are already so surprising, how could everyone not look forward to the performance of the engine itself? ?Yang Fenghao, Yan Zhongcheng and Chang Haonan stood together and watched as the engine, which had invested thousands of people''s efforts, was fixed on the pallet and then slowly entered the cabin of the Y8. In the northeastern morning in mid-September, there was already a hint of chill in the air. ??Yang Fenghao was wearing a leather jacket, put his hands into his sleeves, and asked Yan Zhongcheng next to him: "The last time I sent this old guy to Fucheng, it was nearly eight years ago, right?" ? ? ? "Yeah..." Yan Zhongcheng nodded, tightened the cotton clothes wrapped around him, raised his head slightly, and seemed to What are you remembering: "At that time, the high-altitude platform of Institute 624 was still under construction. The air intake distortion test, plateau and high and low temperature start-up tests could not be done. Functional tests could only simulate conditions below 20,000 meters, so many things could only be installed in adventure equipment. It can only be tested on prototype No. 01. "This time, we can make up for the content that we didn''t have time to do before, especially the plateau low-temperature starting capability, which should be the top priority for our model." Although Yang Fenghata is not an aviation power expert, as the entire Eighth Three The person in charge of the project is still very online in controlling the direction of the project. The air defense of the Tibetan Plateau remained an extremely daunting problem until the first decade of the 21st century. Although the innate altitude of Xigazi Airport allows our military aviation forces to theoretically gain an altitude advantage of three to four thousand meters as long as they take off, maintaining the normal operation of the aircraft at an altitude of 5,000 meters is itself a problem that has never been studied by anyone. subject. ?This situation did not improve until the infrastructure construction from the interior to Qinghai-Tibet was improved and the airstrip in Xikaz was expanded into a full-fledged air force base. As for the current 1990s The Triplesonic Squadron was also equipped with the MiG-25R reconnaissance aircraft that symbolized their name. Although these aircraft are no longer able to exert their full strength due to their age and insufficient maintenance, they can still come and go freely with their height and speed. Hearing this, Chang Haonan turned slightly and said: In fact, after this improvement, the starting efficiency of the turbojet 14 in plateau environment will also be improved. "You even changed the starter?" Yang Fenghao said with surprise in his tone. He did not remember such an item in the list of improvements he had seen before. No, but the compressor rotor is lighter than before, and the total pressure recovery coefficient has increased. Chang Haonan shook his head: This can compensate to a certain extent for the reduced air density and insufficient oxygen content. ?This explanation made Yang Fenghao''s eyes flash with surprise. Obviously, there is one more gift, and it is still so satisfying When a turbine engine is started from a standstill, it must rely on external power. Since there is no relative airflow flowing through the engine at this time, if oil is supplied to the main combustion chamber for ignition at this time, the engine will only be burned without causing the engine rotor to rotate. When the engine is in a plateau environment, the mass flow of air sucked into the engine or starter is smaller than during normal startup on a plain, and the power of the starter is significantly reduced, the rotor accelerates slower, and the cold running phase of the engine is extended, which can easily lead to startup Failure, even in the case of insufficient air flow, entering the idle state in advance and damaging the engine. ??However, the reduction in the quality of the compressor blades can reduce the adverse effects of low-efficiency starter power reduction and allow the rotor to reach the specified operating speed faster. It is equivalent to improving the plateau startup efficiency. After thinking for a moment, Yang Fenghao turned to Chang Haonan and Yan Zhongcheng with a happy face: Xiao Chang, Lao Yan, after you get to Fucheng, you must complete all the data for the plateau startup test. This is very important. After saying this, he seemed to feel that it was not enough, so he continued to add two more sentences: Its okay even if it delays some progress. I estimate that our J-8 export plan may be implemented at this air show. (End of this chapter) Chapter 105 High altitude platform simulation Chapter 105 High altitude platform simulation ?Due to the long distance between Shengjing and Fucheng, the prototype aircraft was transported by a basic Y-8 model with a longer range but without a modified airtight cargo compartment. So Yan Zhongcheng, Chang Haonan and others had no choice but to take another Boeing 737 and arrived in Fucheng a little later. ??Nanjiao Airport was still a military airport closed to civil aviation at this time, but as employees of the aviation industry system, their planes could naturally land here directly. ?Through the port window, Chang Haonan saw that the Y-8 that had taken off before was parked next to the runway. A group of people in camouflage uniforms were unloading the engine from the cargo compartment and preparing to load it onto a flatbed trailer next to it. ?The plane came to a slow stop at the end of the runway, and a ramp truck slowly drove over. Perhaps its because passenger planes dont land here very often, so it took the driver several attempts to get it right. After the cabin door opened, Chang Haonan did not get up in a hurry as usual. It wasnt until everyone else had left that he walked out of the plane at the end of the team. He took several deep breaths in succession, feeling the familiar smell in the air. Fucheng, is back again ?Standing at the top of the gangway, Chang Haonan gazed at the green mountains in the distance with some feeling. ?This is also the first time he came to Fucheng after his rebirth. ?Although it is not Base 29, it is still somewhat touching. ??However, this emo mood did not last long. A familiar voice quickly woke Chang Haonan out of his memories. Why do I feel like you, junior brother, are not very interested and are still worried about the manufacturing process? Its Yao Mengna. She had just been waiting at the door of the cabin. Chang Haonan shook his head: Thats not the case. With the improved surge margin of the turbojet 14, as long as nothing happens like swallowing water and hitting birds, the reliability will definitely be no problem. Of course, he also told Yao Mengna that the engine test flight conditions were not stable enough. I didnt expect the other party to give any answers. I mainly chatted while waiting for the results in the calculation center. But surprises always appear unexpectedly. Do you think there is a relationship between the unstable operating conditions of the Turbojet 14 and the problem that the improved inner pylon may cause the engine to stop after launching the PL-8 missile? One word made Chang Haonan take back the steps he was about to take. The days of improving the compressor were really dark, and missile launch was really a small problem compared to the turbojet 14, so if Yao Mengna hadn''t mentioned it, he would have almost forgotten about it. Tell me what you think? I dont have a complete idea, but I just feel that there should be a connection between the two things, or the underlying root cause may be the same. ?Yao Mengna shrugged. "Well" ?Chang Haonan tried to continue thinking along this line of thinking, but he still couldn''t find any clue for a while. Anyway, lets go there first, dont let Mr. Yan and the others wait too long. Yao Mengna said, reaching out her hand as if she wanted to grab the wrist of the person next to her, but she still hesitated for a moment in the middle of the action. It turned out to be empty. Chang Haonan, who didn''t notice the little movement of the senior sister, quickly walked down the gangway and caught up with the crowd not far ahead. Yao Mengna had no choice but to curse in her mind for her indecisiveness at that moment, while trotting after the other party. ?The group of people got into two blue and white Coasters parked near the apron. At the same time, the engine installation has also been completed on the other side. The entire convoy began to drive towards Institute 624, the Gas Turbine Research Institute where Liu Zhenxiang worked before. ?Due to time constraints, Yan Zhongcheng took out his notebook on the road and began to assign tasks to the core members who were in the same car with him. Comrades, our high-altitude platform test has a total of 13 tasks. According to the order of execution, they are calibration test, air performance test, start-up and restart test, thrust transient test..." "The most important thing here is item 8. The intake distortion test, which simulates the situation that may induce surge, is a key link in determining whether our engine improvement is successful this time, so I decided to let Comrade Xiao Chang do it. Responsible for carrying out "Comrade Xiao Chang, the contents of the first six tests have little to do with our improvements this time. Although they still have to be done according to regulations, the process should be faster. During this period, you can first set the conditions for the intake distortion test. Designed "After completing the eighth item, we need to split into two. One team will continue to conduct the second half of the test, especially the plateau and high and low temperature starts. They must produce the most rigorous and detailed data, and the other team will go to Yan Liang, ready to conduct aerial platform test..." ?Under Yan Zhongcheng''s methodical command, when the group arrived at their destination, they already had a clear idea of ??their tasks for the next period of time. With the help of the staff of the 624 Institute, the first prototype of the improved turbojet 14 was fixed on the thrust bench of the SB101 high-altitude platform that night. ??Due to the experience and lessons learned by Yan Zhongcheng himself at the cost of half his life, no one is allowed in the test cabin during the aviation engine test. Therefore, Chang Haonan could not directly see the working scene of the turbojet 14 that he had improved. Fortunately, the data is read almost in real time. The first step of the test, which is the high-altitude platform calibration test, was quickly completed. ?The thrust bench was then sent into the test chamber. The tail nozzle of the turbojet 14 engine is aimed at the exhaust cooling device at the rear. ?The air supply and extraction systems of the high-altitude platform start working at the same time. The high-speed airflow provided by two DA3500 compressors is cooled and sent into the pressure stabilizing chamber. ?The engine started successfully, and the scream of the turbojet engine could be heard even in the operating room outside the test chamber. Aerial performance testing begins. The first thing to measure is naturally the standard bench thrust. Sea level altitude, incoming flow angle of attack 0, incoming flow speed Mach 0.4, ready to start testing. ?The engineer almost instinctively began to read out the test conditions according to the process. This should be a rather boring step for an engine whose main improvement is to increase surge margin. Because everyone is too familiar with the envelope of the turbojet 14. Almost everyone here can draw it with their eyes closed. The standard bench thrust should be 69.6KN. Although the design goal of the turbojet 14 is an engine with a thrust-to-weight ratio of 6.5, in actuality, the thrust-to-weight ratio calculated according to the national military standard has always been around 6.2-6.3. ? Considering the current status of aviation power in our country, there is nothing unacceptable, as long as the stability is acceptable. ?The engineer who had just read out the test conditions was thinking this way when the thrust data read by the thrust bench appeared on the screen in front of him. Let me see As the engine speed continues to increase, the thrust curve finally stabilizes at The engineer in front of the computer screen couldn''t help but widen his eyes. The pen in his hand fell to the ground. ??The crisp sound also attracted the attention of other people nearby. Bench thrust force73.5KN! Additional updates will be made in the afternoon as usual (End of this chapter) Chapter 106 The most powerful vortex jet! (Added for monthly ticket financier flankerr Chapter 106 The strongest turbojet! (Additional update 28 for monthly ticket owner flankerr) 73.5KN, according to the expression custom in the field of aviation power, is roughly equivalent to 7500kgf (kilogram force). Combined with the 1040kg dead weight of the improved turbojet 14, it is not difficult to calculate that the thrust-to-weight ratio of this engine at sea level is as high as 7.2. ?This number even made Yan Zhongcheng, who had always maintained his composure, twitch the corner of his mouth slightly. ?But he still held back his laughter in the end. Ahem Are you sure you can stabilize this thrust data? Have you not broken through the common operating line? Due to the "performance margin" mentioned before, aero-engine performance can be improved through aggressive measures, at the expense of reduced lifespan and reduced reliability. Especially for engines that are still in the prototype testing stage, because there are no restrictions at the control system level, it is easy to operate beyond the limit. "This...thrust data is currently very stable, and the general characteristic curve data needs to be calculated." While speaking, the engineer who had been observing the data had already taken another laptop from the side and started analyzing the data on it. Chang Haonan was not particularly surprised by this figure. When he conducted simulations after completing the design, he had already roughly calculated that the improved compressor could provide about 10% performance optimization, and the actual product''s performance exceeded this level. Not at all normal. But there were already a few people who couldn''t sit still and didn''t have any important work at hand. They wanted to get up and go over to watch. Dont be impatient and finish this round of air performance test first! Yan Zhongcheng didn''t react on the surface, but judging from his slightly trembling and hoarse voice, he was by no means so calm inside. Its certainly not that he doesnt want to celebrate. In fact, although in accordance with the standard requirements, about 10 different inlet total pressure state points should be selected for testing during the high-altitude simulation assessment test to correspond to the average operating state of the engine within the test range. ??However, the data to be tested this time is only the most common sea level thrust. If the data can be stabilized at a certain state point, there should be no problems. After all, the speed range to be simulated is only Mach 0.4-0.6. But in the past few decades, he has experienced too many failures. There have even been cases where the engine was in normal working condition and seemed to have very stable performance one second, but suddenly suffered a major accident the next second, causing the prototype to be completely destroyed. There have also been times when equipment malfunctions caused errors in the real-time readings on the computer, and it was only after the experiment that it was discovered that the joy was in vain. So he really didnt dare to relax mentally at all until the entire experiment was over and he saw the official results of the final output. ?Time passed by minute by second, and the entire operating room could almost only hear the whistling sound of high-speed airflow flowing through the impeller machinery, and the password of the test conductor. Start adjusting the total inlet pressure, step size 6.0kpa, 15 measurement status points The maximum thrust test is completed, adjust the throttle lever position to the maximum continuous position Quickly adjust the throttle lever to switch between the maximum continuous and minimum afterburner states. When the experiment finally reached this point, even Chang Haonan felt a little nervous. ?Thrust transient itself is a separate test subject, but in fact it will also be involved during other tests. Just like now. As for the rapid oil recovery under afterburning, the No. 01 prototype aircraft induced surge during this process. Fortunately, both the sound of the engine and the numbers displayed on the computer screen only fluctuated for a moment, and then returned to normal. "Turn off the afterburner and adjust the throttle lever to the middle..." The engineer in charge tried to keep his voice calm. Finally, the last data point in the last flight idle state has been recorded. Steady-state performance test, end... As the last command was given, everyone''s attention returned to the equipment in the center of the operation room. Long pieces of graph paper were slowly spit out from the special printer. Before one end of the paper fell to the ground, it had already been taken away by impatient people. ?As long as the high-altitude platform is activated, it will be a gold-eating beast. For Chinese military workers who are eager to dig out money from their teeth, it is naturally impossible to have the luxury of testing only one maximum thrust at sea level in one test. Other data is equally important. ?Furthermore, everyone wants to know what kind of overall performance this engine with a maximum thrust of 7500kgf will give. ?At almost the same time, the engineer who had just used his laptop to process data in real time also completed his work and began to compare the compiled data report with the curve on the graph paper. "Wow-" After about a few minutes, maybe more than ten minutes, the first voice finally broke out from the crowd. This is actually a...turbojet engine? This data is even more powerful than J79 Too conservative, this is completely out of the same performance dimension as J79 ??As more and more graph paper recording data is printed out, the atmosphere in the control room becomes more and more lively. Listening to the discussion and admiration of his engineers, Yan Zhongcheng finally breathed a sigh of relief. The clenched fists were slowly loosened, and there were even a few blood marks on the palms of the hands dug by nails. ?Finally, the engineer who first reported the maximum thrust data squeezed out of the crowd with the test report in his hand that had not yet been bound. Mr. Yan, Dr. Chang, this is a performance report. Data has been randomly tested against the original records, and no problems have been found. Yan Zhongcheng spread out a dozen pages of reports on the table in front of himself and Chang Haonan. Then he knew the source of those exclamations just now. Not only has a maximum thrust of 73.5KN. Fuel consumption rate under maximum afterburner is 0.207kg/(Nh) Middle thrust 48.3KN Fuel consumption rate under intermediate thrust state is 0.088kg/(Nh) Total boost ratio 18.6 Total air flow 66.4kg/s As an aviation power expert, Yan Zhongcheng naturally knows the significance of these numbers. ?No wonder someone just said this doesnt look like a turbojet engine. The typical second-generation turbojet engine J79 has a maximum afterburning thrust of 80KN, but it is a behemoth weighing 1800kg. The R11F300, a replica prototype of the Turbojet 7/13, has a curb weight similar to that of the Turbojet 14, 1100kg, but the maximum afterburner thrust is only 60.3KN. In fact, let alone these old-timers, even if the U.S. military served in the 1980s, the third-generation turbofan engine F404-400 equipped on the F/A18 fighter jet, with 71.2KN afterburning thrust/983kg curb weight, is only It was on par with the Turbojet 14 in front of me. If compared in all aspects, apart from the fact that the fuel consumption of the turbojet engine cannot be reduced due to the limitations of physical principles, so there is still a gap in fuel consumption and efficiency, the improved turbojet 14 can completely compete with the F404-400 A tie. From a technical perspective, it is definitely the most powerful turbojet! (End of this chapter) Chapter 107 One month, twelve years (I got up) Chapter 107 One month, twelve years (I got up) Looking at the data report in front of him and Chang Haonan who still seemed calm and relaxed next to him, Yan Zhongcheng turned around subconsciously and left the control room pretending to be nonchalant. He didnt want his tears to be seen by too many people. Twelve years. Twelve years have passed since the Kunlun engine project was officially established in 1984. For China Aviation Industry, which has never successfully developed an aerospace engine from scratch before, there are too many things to learn and lessons to make up. This project has been ill-fated from the beginning. Even Yan Zhongcheng himself cant remember exactly how many problems he has faced in the past twelve years. At the beginning, the combination of the three-stage low-pressure compressor of the turbojet 13 engine and the first seven-stage high-pressure compressor of the downsized "Spey" engine did not match. The engine would enter surge almost immediately as soon as it was started. They had to redesign the fourth stage of the compressor, and finally the engine could start working normally. Later, because the temperature in front of the turbine of Turbojet 14 was higher than that of Turbojet 13, which far exceeded the endurance of the turbine blades themselves, they had to use active film cooling technology for the first time on the high-pressure turbine. ??Due to no engineering application experience, Factory 410 was unable to produce qualified products with air film holes for several years. Root fractures of high-pressure turbine blades were almost the main part of Yan Zhongcheng''s nightmare during that period. Following this were oil leakage from pipelines, oil interruption, and low afterburner ignition success rate... ??If the story of these twelve years were written into a book, the most appropriate title would be "Learning Engine Design and Manufacturing from Scratch". It can be said that the entire research and development process of the Turbojet 14 is a cycle from one setback to another. ?At first, Yan Zhongcheng would feel excited because he led his team to overcome a certain technical problem. But soon, he no longer had similar emotions. Because the solution of one problem often means more problems. It was like groping forward in the moonless and dark night, not even knowing if I was on the right path. Thinking of this, Yan Zhongcheng sighed, leaned against the wall of the corridor at the door, put his right hand into the collar of his shirt, and touched a scar on his left shoulder. That was left over from a failed test run. ?The fan blades flying in the explosion almost cut off half of his left arm, so that to this day, he cannot lift his left hand for a long time. Many people left midway. To be honest, Yan Zhongcheng understands. ?What these people are afraid of is not suffering, hardship or even bloodshed, but losing hope and direction. ?This is why he had to let Chang Haonan think clearly before deciding whether to join the power joint research team. Because it takes extraordinary courage to plunge headlong into the dark night. ?But it was obvious that he underestimated this young man after all. ?The other party is not afraid of the long night at all, because he himself is the torch that lights the way forward. Now, there is light. The road is clear. In the control room, Chang Haonan certainly knew why Yan Zhongcheng chose to leave alone when everyone was celebrating. As a reborn person, he knows the latter''s experience in the development process of the Turbojet 14. It only took more than a month from the accident of the No. 01 prototype to coming up with a new design with performance comparable to the F404 engine. There is of course systematic help and the reason why a reborn person is prophetic. However, without Yan Zhongchengs twelve years of persistence, Chang Haonans one-month miracle would not have happened. Compared to the sentimental Yan Zhongcheng and the calm Chang Haonan, the emotions of most people in the control room were much simpler. Excited and happy. There was great joy. For the vast majority of engineers in Institute 606, this is even the first time in their careers that they have experienced the feeling of success. Prior to this, the best aeroengine China could produce was the turbojet 13. The technical level is roughly the same as the J79 in the early 1960s, but the overall performance is even weaker. The turbojet 14 in front of them has already pushed the J79 several positions away. It can even be compared to the F404 in the mid-1980s to a certain extent. Fifteen years leap! Of course, this calculation method is definitely not accurate enough. F404 is just a less dazzling product in the overall development process of the US aviation industry, and it is far from the limit of that era. The Turbojet 14 is the only seedling growing in the still barren soil of China''s aviation industry. ??It is probably too optimistic to say that the gap between China and the United States in the field of aviation power has been narrowed to less than ten years. But, so what? The huge technological breakthrough is real. For the first time, China has its own aviation power. And you must know that a project like the Kunlun engine does not only represent one model. If all test projects can be successfully completed, a series of new products can be developed based on the mature core machine of the Turbojet 14. The development of the entire China aviation power industry will benefit from this. Project research and development also pays attention to positive feedback. In the past few decades, aviation engine models have been used as supporting equipment for aircraft models. Coupled with insufficient investment, the aerospace power field with already weak foundation has become even worse. In many cases, even if a complete set of technical data from the Soviet Union is obtained, they can be copied. There is a certain gap between the performance of the finished product and the original version. Looking back at the aircraft industry, the first J-5 was assembled in 1956. Two years later, in 1958, the J-1, which was completely designed independently, successfully made its first flight. ??Although the JJ-1 only built 3 prototypes and did not achieve mass production, that was mainly due to changes in the flight training system and... The 410 factory is unable to provide qualified Ejection 1A engines. Although there are limitations from various objective factors, such a sharp comparison between the two makes it even more obvious that the aviation power department is a bit "not up to par". ?In the following nearly 40 years, this kind of engine "holding back" has almost always been accompanied by the development of the entire Chinese aviation industry. So much so that those who engage in aviation development feel a bit unable to hold their heads high. But this time, the situation is different. The original design of Project 83 is at the level of a normal second-generation aircraft. Even after some improvements by Chang Haonan, it can be regarded as a "quasi-third generation" at most. ?The turbojet 14 provided by our aviation power department is also a "quasi-third-generation" engine with performance that is close to that of the F404. Not only is it not lagging behind, it is even ahead of the aircraft models to some extent. Finally feel proud for once! ?But at this moment, someone among the people celebrating each other suddenly realized something. The person who presided over the modification of the compressor design this time is also called Chang Haonan. The person who presided over the modification of the aircraft design before was also named Chang Haonan. How do you feel..." ?The man scratched his head and looked at Chang Haonan, who was looking down at the test report outside the crowd. As an ordinary engineer at Institute 606, he certainly had not participated in the wing design modification work undertaken by Institute 601. He had only heard about it in exchanges with colleagues. ifier This cant be the same person (End of this chapter) Chapter 108 Turbine front temperature Chapter 108 Temperature before turbine ?At the same time, Yao Mengna was sitting on a chair in the corner of the control room, almost out of everyone''s attention. From the surface, she seemed to be staring at Chang Haonan''s profile in a daze. ?Well, thats actually true. ?But the reason for being in a daze is not that he is attracted by the latter''s appearance and becomes a nymphomaniac. Rather, after witnessing the high-altitude platform test process just now, an inspiration flashed through her mind. But he didnt have time to catch it. I just vaguely felt that the inspiration just now was related to my junior brother. Yao Mengna believes that visual stimulation can stimulate the subconscious mind and remind herself of useful things. ?Well, its all for scientific research. In short, when she really caught the inspiration again a few minutes later, she even felt a little disappointed. Damn it, I cant find any other excuse to lie to myself... Forget it, business is more important. ??Yao Mengna shook her head slightly and put aside the messy thoughts in her mind for the time being. Then she stood up and walked quietly along the edge of the room to the computer that recorded the test data. In fact, on the way off the plane, she was thinking about the unstable operating conditions of the turbojet 14 that Chang Haonan mentioned before. Now she has an immature but logically self-consistent guess. It just needs some data to confirm. Soon, she found the inconspicuous project from the vast sea of ??records Combustion chamber outlet temperature/turbine front temperature. "very good." ?Yao Mengna, with her eyes fixed on the screen, raised the corners of her mouth slightly and murmured softly. However, the excitement only lasted for a moment. ?After clicking in to check, she found that the data inside was incomplete. ?This indicator is very important in the design and manufacturing process of combustion chambers and turbine blades, but is generally not a focus in high-altitude bench testing. The main reason is that it is really difficult to measure. The accuracy of non-contact measurement is not high, and the technology is not mature enough. The engine even needs to be specially modified for testing. Contact temperature measurement requires the insertion of armored thermocouples. One or two is not a problem, but if you want to obtain a complete temperature field, there will be many points that need to be measured. A large number of thermocouples themselves will affect the internal flow field of the engine. Produce interference and affect working status. So as long as the engine''s core indicators such as intake air flow and thrust are normal, and there are no problems with the turbine''s operating conditions, the temperature in front of the vortex will not be measured frequently. At most, we can only give the data of 1-2 sampling points as shown in front of us to ensure that no over-temperature accidents will occur. But she needs more comprehensive data. After a few seconds of hesitation, Yao Mengna finally decided to talk to Chang Haonan about the matter first. ?With the lessons learned from the last blade slit design, she will not allow the project progress to be delayed again due to her own reasons. Junior brother. Yao Mengna bypassed the crowd that had just finished celebrating and came to Chang Haonan: I would like to conduct an overall measurement of the temperature field in front of the turbine during the subsequent air performance test. Temperature in front of turbine? Chang Haonan raised his head and glanced at Yao Mengna in front of him, then quickly flipped through the report in his hand, and quickly found the page with the corresponding data. The maximum temperature in front of the turbine is 1575K, which does not seem to exceed the design tolerance, and from the overall working condition of the engine, it is also..." Halfway through speaking, Chang Haonan suddenly paused. Do you think there will be a problem with the temperature distribution in front of the turbine? Thats right. Yao Mengna nodded firmly: The data obtained now are only the results of sampling at two points at the center and edge of the turbine. If it is a generally radially symmetric temperature field, there is certainly no problem with this measurement method, but the turbine blades themselves have an active cooling function. "If the air film formed on the surface of the turbine blade is not uniform enough, the cooling effect will fluctuate. At around 1600K, even a temperature change of only 20-30 degrees will significantly change the physical properties of the blade and affect the overall operating conditions of the engine. stability. ?Chang Haonan turned to the back of the test report in his hand while listening to Yao Mengna''s thoughts. ?Sure enough, unstable operating conditions similar to those on the No. 01 and No. 03 prototypes were discovered from the data. Fortunately, this time he has reserved enough surge margin, so even during the thrust transient, no fault occurred. However, the sensor still faithfully recorded the dramatic fluctuations in the compressor mass flow rate and boost ratio at the moment when the throttle lever state changed. I think it is indeed possible... Looking at the report in his hand, Chang Haonan realized that he had fallen into a misunderstanding. Because the position where the operating condition fluctuations were initially recorded was the compressor. Later, the part he presided over the modification was also the compressor. So he always felt that the problem lay in this part. But something like an aircraft engine affects the whole body. The principle of film cooling is to introduce a secondary air flow from the hole on the wall in a high-temperature environment to the mainstream, allowing this cold air flow to bend downstream under the pressure and friction of the mainstream, and adhere to a certain area of ??the wall, resulting in a lower temperature The cold air film isolates the wall from the high-temperature gas and takes away part of the radiant heat from the high-temperature gas to the wall of the part, thereby cooling and protecting the wall. ?This process requires the extraction of low-temperature air from the compressor as a cooling fluid, so it will directly affect the air flow inside the compressor. Chang Haonan certainly knew the principle, but after all, it was not his previous profession, so he did not think of it for a while. Thank you for reminding me, senior sister. ?Chang Haonan quickly packed up the reports on the table and prepared to go outside to find Yan Zhongcheng. In the entire bench test, he was only responsible for the intake distortion test related to compressor improvement. The person in charge of other test subjects was still Yan Zhongcheng himself, so if the test items were to be temporarily added, the latter''s signature would be required. Its okay, as long as I can help. Yao Mengna wanted to hug the other person, but after thinking about it, it seemed that it was not the right time, so she had to put down her half-raised arm. It would have been nice if I had come here when the test results first came out Fortunately at this time, Yan Zhongcheng, who had just left the control room, pushed the door back in without letting Chang Haonan notice her embarrassed expression. Mr. Yan, regarding the air performance test that will be conducted later, senior sister has come up with an idea... Given the ability that Chang Haonan has shown so far, this suggestion was naturally passed very smoothly. In 1996, there was no very reliable non-contact online measurement method, so the staff of the 624th Institute installed a batch of armored thermocouples on the high-pressure turbine guide overnight. After the three-hour experiment, the raw data was quickly given to Chang Haonan. The subsequent analysis results proved that Yao Mengnas previous guess was completely correct. At maximum afterburner thrust, the temperature field at the engine turbine inlet is distributed parabolically along the blade height, that is, the temperature at the blade tip and root is low and the temperature at the middle position is high, which is consistent with the design law. But as the engine speed gradually decreases, the unevenness of the temperature field in front of the turbine begins to increase. The unevenness reaches its highest level when the throttle lever is near the "minimum afterburner" position. ?This is exactly the same situation recorded by the two prototypes during the test process - the most severe fluctuations in operating conditions occurred during transonic acceleration or deceleration. Thats right! (End of this chapter) Chapter 109 choice Chapter 109 Choice In the control room, the few people who saw the results for the first time looked at each other. Air film hole cooling is a well-established black technology in this era. Foreign countries have blocked this technology so strictly that in the past ten years, only one paper in the related field has been published in the world - that is The article that originally proposed the concept of film cooling. ?According to basic physical principles, the size, distribution, and most importantly, the shape of the pores of the air film will affect the heat dissipation effect. However, China in the late 1980s undoubtedly did not have the ability to conduct in-depth research. Similar to the flutter active control method proposed by Chang Haonan that was hidden by the 603, the specific design method of the turbine blade air film hole is also unknown to companies such as Rolls-Royce, General Motors, Pratt & Whitney or Leurica-Saturn. secret. ?There is no way to learn from it. Therefore, Yan Zhongcheng and others chose a very conservative round hole design when designing turbine blades. The cooling effect can only be said to be unsatisfactory. Fortunately, the temperature in front of the turbine of the Turbojet 14 is not extremely high. The point is that the design process is relatively simple and there will be no mistakes. Furthermore, if it is a design flaw brought from the mother''s womb, its performance will be relatively stable, but to a very poor extent. But this is not the case. So the problem lies in the manufacturing of turbine blades. Or to be more precise, it should be during the process of air film hole processing. The separation system of factories and offices commonly used in aviation systems does ensure that resources are concentrated in their respective key directions under the background of relatively difficult conditions. However, the loosely coupled collaboration method between the design office and the main engine factory determines that there is essentially no communication between the two parties. of mutual affiliation. Although Factory 410 needs to cooperate with the work of Institute 606, it does not obey the management of the latter. ?The people who came to Fucheng with Yan Zhongcheng this time were all engineers from the 606 Institute. They generally had little knowledge of the manufacturing process, and faced this problem for a while. The chief engineer responsibility system was established a few years ago to a large extent to solve this problem, and it has shown good results from the subsequent situation. However, the August 3rd Project and the Kunlun Engine, which were already established in the mid-1980s, did not have such a team. . ?After all, it is rare for someone like Yang Fenghata to be able to lead the overall situation as the chief designer. Not only does one need to have sufficient prestige, but more importantly, the superior must be willing to provide support later. Xiao Chang, I remember that you should have visited the 410 factory before coming to Fucheng this time. Did you find any problems? I mainly mean...the management level? After a while, Yan Zhongcheng asked. ?Of course he himself often goes to the 410 factory, but as a model chief engineer and a "brother unit leader" his goals are too big, and even if he goes there, he may not be able to see anything. Chang Haonan shook his head: "For the two newly assembled engines, only the casing and compressor parts are newly made. The combustion chamber and turbine at the back are all previously produced parts. At least from the perspective of the production and assembly process of the compressor blades, it can be calculated Its very organized. He suddenly remembered the pile of blades piled in the scrap area of ??the workshop. That afternoon in the restaurant of the production workshop, Zhong Shihong once explained in detail the manufacturing and testing standards of compressor blades. ?Although I cant remember the specific data, the other party said that these standards were determined after nearly 30 years of exploration. So he opened his mouth and added: Air film hole manufacturing is completely new to our aviation manufacturing field in China. I think it is possible that they have overlooked some key points. ?The atmosphere fell into silence again. Theoretically, this is not a serious enough flaw to be fatal. ?However, everyone here just experienced such an excitement yesterday, a joy that finally made them stand up and sing. A second-generation engine has a performance close to that of a third-generation turbofan. The Turbojet 14 in front of us is currently the treasure in everyones hearts in 606. Even if there is only one in 10,000 chance that something will go wrong, everyone wants to eliminate possible hidden dangers. Once bitten, twice shy. ?The Turbojet 14 has experienced too many ups and downs. ??It would be okay if they were always in darkness, but now they have seen the light of hope. No one wants to lose it again. Perhaps, the 410 Factory can send the No. 02 prototype that has been finalized for testing. Maybe it is an isolated case? Finally someone suggested. You can also try replacing a new high-pressure turbine? Listening to the increasingly noisy discussions around him, Chang Haonan suddenly realized a problem. It seems that everyones focus has gone astray. The person who initially wanted to find out the cause of the unstable engine working condition was indeed himself. But now these people around us seem to be more persistent in eliminating hidden dangers. ?Hmm...perhaps even paranoia, or fanaticism. A bit similar to Yao Mengna from the previous period. ??Its just that this time its really possible that the progress will be delayed. In fact, what Chang Haonan was most worried about before was that the engine had some unknown structural defects. If thats the case, simply improving the surge margin to treat the symptoms will definitely not work. So after truly identifying the problem, he himself breathed a sigh of relief. First of all, it has been proved that this problem is not fatal, and secondly, subsequent production improvements will not affect the design finalization task. ?If conditions permit, he is of course willing to continue digging deeper to satisfy his inner perfectionism as a scientific researcher. ?However, engineering things are never perfect and must be considered comprehensively based on the actual situation. Even the rockets used for manned spaceflight can only achieve 99.8% overall reliability instead of 100%. ?Risks are not scary, only when risks are out of control. Furthermore, for a power such as the Turbojet 14 that can be used on the two main fighters, the J-7 and J-8, schedule delay itself is a risk. The choice between soundness and efficiency is like walking a tightrope. ??The layer of paper between being bold and promising and being blind and reckless was finally placed in front of Chang Haonan. ?Perhaps even he himself has not realized it, but he has unconsciously begun to think about issues from the perspective of overall project management. It seems more appropriate for Yan Zhongcheng to come forward and speak out about this matter? Looking at the people who were having a heated discussion, Chang Haonan hesitated again. If it had been left to the past, he would probably have made such a decision eventually. But this time, something different seemed to be urging him in his mind. Comrades, the high-altitude platform test cannot be interrupted and should continue as planned. ?Chang Haonan stood up almost without any control of his mind and said these words. So that he first heard a familiar voice, and then realized that it was himself who had spoken. Everybody in the control room looked at Chang Haonan, the only one standing. Including Yao Mengna. (End of this chapter) Chapter 110 I just added the national military standard Chapter 110 I added the national military standard In her impression, this junior fellow student was always very confident in the technical field, but always lacked some momentum when communicating with others. Fortunately, the other party''s ability is really ridiculously strong, and everyone who can always directly use the research results to defeat him is convinced. ?In this case, the original lack of aura becomes advantages such as "elegant, easy-going" and "approachable" in the eyes of others. Today is the first time that Yao Mengna has seen the other party be so decisive, even with a slightly domineering side. After saying the first sentence, Chang Haonan''s brain went blank for a moment. Fortunately, his performance just now made everyone think that he was having emotions. Now that the matter has come to this, we can only continue talking. Chang Haonan calmed down when he thought of this. ?He took a deep breath and spent about half a second organizing the next words: As engineers, everyone should be aware of the risk control theory. Judging from the current situation, this unknown manufacturing defect has not broken down the redundancy left in our design process. At least in the current test, the working condition of the engine has not been abnormal because of this. So there is absolutely no need to disrupt the progress of the design finalization. After all, this also involves whether Project 83 can be displayed in a complete form at the air show. "Prototype No. 02 has been sent to Yanliang. We are just waiting for the high-altitude platform test here to be completed before we prepare to go to the 086 platform for air testing. The 601 Institute is also adjusting the fuel tank layout of the aircraft to adapt to the lighter 220 Kilograms of two engines. These works affect the whole body. If we stop, it will also have an impact on the work of these brother units. Of course, the problem cannot be left alone, but it can be solved one after another during the production and finalization process. I can understand that everyone is not willing to take risks after seeing the performance of this engine, but comrades, the sky of the motherland does not leave us enough time to pursue the limit. As the main proposer of the turbojet 14 compressor improvement plan, these words come from Chang Haonan''s mouth, and the persuasiveness is naturally completely different. The entire control room became quiet again. Some people soon stood up to express their agreement. After all, everyone understands the truth, but most people are still in the excitement of yesterday, so their ideas are confused. ?Of course, the final decision still has to be made by Yan Zhongcheng: Since it is confirmed that there is a problem in the manufacturing process, I will first contact Comrade Zhong Shihong and ask him to conduct a self-examination of the turbine blade production process to at least ensure that the current manufacturing process can be completed with quality and quantity. "As for us, Comrade Xiao Chang is right. Judging from the current situation, the testing work should continue. Moreover, the comrades from the 624th Institute said that there is an improved turbojet 13 on the Zhucheng side to follow us. Doing testing, so keep the original plan unchanged. If there are no problems, then go back and prepare for tomorrows startup and restart tests. At the insistence of Chang Haonan and Yan Zhongcheng, the ground test of Turbojet 14 continued as usual. In the following half month, a series of sub-projects such as start-up and restart, plateau and high and low temperature, thrust transient, afterburner on and off, and engine control system were successfully completed with the cooperation of 624 institutes working overtime. There were no further surprises worth mentioning. And Chang Haonan was not idle during this period. He is conducting the intake distortion test design that he is responsible for. In fact, this can almost be said to be the most complex and difficult link in the entire high-altitude platform test. Other test subjects only test the performance of the engine. The primary problem faced by the intake distortion experiment is actually that there is no standardized standard. ??Although Yan Zhongcheng actually only asked Chang Haonan to test the surge condition of the engine when he first arrived in Fucheng to assign tasks, the strict intake distortion test is definitely not equivalent to the forced surge test. After all, in addition to extreme situations such as surge and rotational stall, the more common situation of intake distortion will directly affect the performance of the engine. This is especially true for fighter jets that often perform over-stall maneuvers with large angles of attack and large sideslip angles, and even launch missiles/rocket weapons during these maneuvers. ??The missile launch exhaust smoke that has been bothering the J-8-3 before can also be regarded as a type of air intake distortion. ?So if you want to evaluate the stability of the engine, you must at least first define what stability is, what indicators can determine stability, and how to measure these data... The entire Chinese aviation industry currently knows almost nothing about this. The Turbojet 14 is actually the first Chinese engine to reach this stage. In 1994, based on the introduction of the American ARP1420 and AIR1419 standards, my country issued GJB/Z64-94, which is the "Guidelines for the Assessment of Import Total Pressure Distortion of Aviation Turbojet and Turbofan Engines." ?However, this guideline lacks the necessary support of experience and test data, as well as calculation procedures and engineering methods. It can be said that it has no operational value. In the original timeline, this problem was not solved until the late 1990s, when Russian compatibility theory and analysis methods were systematically introduced. It is already the new century to truly set the standards. The Turbojet 14 certainly cannot wait until that time. So Chang Haonan decided to do it himself. ?Of course, this does not mean that he alone has to complete the contents of the entire national military standard. But at least give it a good start. In short, when Chang Haonan placed a nearly 100-page "Aeroengine Inlet Distortion Test and Evaluation Method" in front of Yan Zhongcheng, the latter''s eyes almost bulged out in shock. You wait, you wait. Yan Zhongcheng put down the half-filled water glass, rubbed his pounding heart, and stopped the young man in front of him who was about to start a long speech. He felt that he needed to slow down. Too many surprises can sometimes turn into shock. ?After about half a minute, Yan Zhongcheng finally felt that he had calmed down. "You...have designed a complete set of experiments in accordance with national military standards?" Thats not the case. Chang Haonan shook his head decisively. The strict intake distortion experiment involves matching the engine and the intake duct. Firstly, there is not so much time for the current Eighth-three Project, and secondly, the objective conditions of the 624 Institute It also does not yet allow for complex distortion simulations. ?For example, the exhaust smoke when the missile is launched will not work. "Oh, it''s fine if you don''t have it... No, it doesn''t matter if you don''t have it. We can do it step by step..." Yan Zhongcheng picked up the water glass again and took a sip of water. I just supplemented the engineering and calculation methods regarding temperature distortion and pressure distortion in the national military standards. Coughcough cough (End of this chapter) Chapter 111 Intake distortion test Chapter 111 Intake Distortion Test This time, what Chang Haonan did quietly was definitely a big job, and its impact was naturally not as simple as making Yan Zhongcheng choke. It is one thing to design an individual trial, but another thing to come up with a set of universal and unified regulations that apply to the entire industry. "Fill?" ? Yan Zhongcheng, who finally regained his breath, gave up his plan to drink water and opened the "Aeroengine Intake Distortion Test and Evaluation Method" in front of him. He had to see how much Chang Haonan had added. Classification of destabilizing factors Evaluation specifications for aerodynamic stability Numerical calculation methods during aerodynamic stability analysis The influence of experimental factors on distortion characteristics Comprehensive assessment of aerodynamic stability in the engineering design stage ifier Of course, it is impossible to read all the more than one hundred pages of documents in a short time, but just a glance at the table of contents has already made Yan Zhongcheng pinch his teeth in shock. ? Regardless of what the content looks like, the logic of the writing is absolutely clear. Since the ARP1420 and AIR1419 standards that were introduced (copied) were fundamentally not suitable for Chinas aviation industry system that was born out of the Soviet Union and France, a lot of the content in it was very blunt and confusing, like a book Mathematics textbooks that are poorly translated and lack content are equally frustrating. The assessment method written by Chang Haonan not only contains a lot of practical guidance, but also corrects or redefines many inappropriate parts of the original standards. Xiao Chang. Yan Zhongcheng finally took a sip of water safely, and then slowly said: I cant do anything about what you wrote, nor am I qualified to evaluate it, so I have to report it. ? He ??is very clear that many of the specific contents in this method involve a lot of professional knowledge outside the field of overall aero-engine design, and it is not enough for one person to do it alone. And more importantly, it is the national military standard. Even if it is not complete yet, it is a serious national standard. Once the content is written in, it will guide all engineering practices in related fields. In other words, in the future, any new models of aero engines or gas turbines that need to be tested for air intake distortion must be conducted within this framework, and even involve a series of work such as subsequent type certification. At any time, the formulation of national standards related to any industry is followed by countless exchanges of interests and bloodshed. Although China''s aviation industry is completely under the unified leadership of the state and there will be no exaggerated plot of physical business war, this weight is definitely not something that Yan Zhongcheng, the model chief engineer, can handle. So whether from the technical level or the management level, it requires an entire expert group and the endorsement of the Commission of Science, Technology and Industry for National Defense. I know this. Chang Haonan, who was sitting opposite Yan Zhongcheng, took out a bulging file bag from his bag. After opening it, there was a stack of documents that had not been bound: I have already prepared relevant documentation and data from the engineering design process, but if we want this method to be truly convincing, we still have to do it on our turbojet 14. Of course, the intake distortion test of the turbojet 14 engine will still proceed as planned. Yan Zhongcheng picked up the pen in his hand and tapped the table as usual: But according to the general process, there will be a standard review soon after I submit the report. In order to ensure that the progress of both parties is not delayed, the on-site conductor of the test still has to be replaced by another person. He can still distinguish the priorities of things. ? Based on the performance of the turbojet 14 in the past period, it can basically ensure that the test process goes smoothly, and there are not many things that need to be handled on site. Therefore, it is even more important for Chang Haonan to prepare for the standard review personally.?????"If it were another person..." Chang Haonan also knew that he had no skills at all times, and the efficiency of taking care of both sides would be even lower. Therefore, he glanced at Yao Mengna, who was sitting next to him and had been silent. After thinking for a while, he gave his answer: Let my senior sister come. She has also participated in the design of relevant experiments and the determination of standards during this period. She is the most suitable candidate besides myself and you. Putting Yan Zhongcheng next to himself is definitely not a compliment. In fact, in the original timeline, before GJB/Z64-94 truly formed its guidance capabilities, the only person in China who had relatively systematically designed the asthma test was Yan Zhongcheng. Its just that the water-spraying method he used was not as stable as the plug-in method later introduced from Russia, so it failed to become a standard in the end. Xiao Yao ?When he heard Yao Mengna''s name, Yan Zhongcheng''s first reaction was that she was a bit too young. ?But immediately he realized that Chang Haonan in front of him was actually younger. The next life is to be feared Yan Zhongcheng sighed secretly in his heart and nodded at the same time, agreeing with the candidate proposed by Chang Haonan: Thats fine, let her do it, itll be a bit of exercise. The two of them made arrangements for Yao Mengna clearly and clearly. "ah?" The latter was originally just appreciating the temperament that Chang Haonan inadvertently revealed when communicating with Yan Zhongcheng, but he never expected that it would suddenly affect him. Wait, why is it me... ?Yao Mengnas first feeling after learning about this decision was panic How come I, a third-year Ph.D. student who helps my junior fellow student, was suddenly assigned to be the on-site commander? After all, such an arrangement not only means recognition for her, but also means shouldering huge pressure and responsibility. It is completely different from simply doing technical research. Xiao Yao, dont refuse this matter. Yan Zhongcheng turned around and looked at Yao Mengna, who was still confused: You are all the future pillars of China Aviation. You must be good at and dare to take responsibility. This experiment is not difficult and risky. Just think of it as training for you. The corner of Yao Mengna''s mouth twitched slightly, thinking that there was no point in giving a doctoral student practice skills under a key project of the Science and Technology Commission, but Yan Zhongcheng had already reached this point, and she could no longer refuse, so she had no choice but to nod and agree. Guaranteed to complete the task! Even though it was not her intention, with her serious character, now that she has accepted this task, she will definitely try her best to complete it to the best of her ability. ?So Yao Mengna looked at Yan Zhongcheng opposite, and then at Chang Haonan beside her. The latter''s eyes seemed to be full of encouragement. This made her emotionally stable a lot. Then...Ill go back and prepare now. Dont be too stressed. You can go to the control room to simulate the test process tonight. If you have any questions, you can ask me or Xiao Chang. Yan Zhongcheng, who noticed the nervousness in the female doctor in front of him, continued to half-joke in a relaxed tone: Otherwise, after the review expert team arrives in two days, we may not have as much time to do. (End of this chapter) Chapter 112 Our own standards! Chapter 112 Our own standards! Yan Zhongchengs report quickly attracted the attention of the Commission of Science, Technology and Industry for National Defense. That evening, General Ding Gaoheng, director of the Science and Technology Commission, convened experts in the aviation field in Beijing and held a small but high-level internal symposium. Of course, among the invitees were Du Yishan and Liu Zhenxiang who were flying on Beijing Airlines. As academicians, the two of them were naturally provided with special cars, but Liu Zhenxiangs organizational relationship was still with Institute 624, so he had to squeeze into the back seat of the same car as Du Yishan. You are quite well prepared. Du Yishan glanced at Liu Zhenxiang, who was carrying a bulging briefcase. The latter put the bag casually between the two of them and said with a smile: Your precious student, there is quite a stir this time. The people from Fucheng called me last night and told me that they were preparing to apply for a standard review, but I didnt expect that it would directly alert the Science and Technology Commission. Hehe, this brat caused such a big thing, but everyone knew about it before me. In the end, it was me, the mentor, who was kept in the dark. Du Yishan had a cold face, but the joy in his tone could not be hidden at all. ?Like a child who just got a new toy. Although he talks about it, he still can''t help but take it out and wave it in front of his friends. And he also deliberately pretended to be casual. ?There is no doubt that Liu Zhenxiang is the friend who was dazzled: Okay, okay, I know you have a great student. Once the matters over at Institute 624 are settled, I will also transfer the organizational relationship back to Jinghang as a professor Actually, when Chang Haonan officially studies for a Ph.D. next year, you can also be his associate tutor. Du Yishan looked sly. Go, go, go, is that the same thing... Liu Zhenxiang suddenly regretted that he had just rejected the proposal from the Science and Technology Commission to send a car to pick him up, and chose to ride in the same car with him. ?But then again, since Chang Haonan has also shown extraordinary abilities in the field of aviation power, it seems that it is not impossible to put a name on it? Associate tutors are of course nameless and unpleasant to hear, but if you can be a joint training tutor... ?That can be considered at least half a student. ?Looking at the street scene speeding past outside the window, Liu Zhenxiang couldn''t help but start thinking about this possibility. The seminar was held in an inconspicuous conference room of the Committee of Science and Industry. The number of participants was not large, and they were only seated in two rows. ?There was only a bottle of water in front of everyone, and there were no meeting documents. It was not until about ten minutes after the scheduled start time of the meeting that two staff members finally walked in in a hurry and handed a black briefcase to Ding Gaoheng, who was sitting at the head of the conference table. Comrades, we only received the report at noon, so todays symposium is indeed held in a hurry. Ding Gaoheng said as he took out two documents from his briefcase and handed them to the first person on his left and right hands respectively: "These two copies were just brought over from Fucheng by the confidential personnel, "Guidelines for Evaluating the Inlet Total Pressure Distortion of Aviation Turbojet and Turbofan Engines." Since I was in a hurry and did not have time to print more copies, I would like to trouble you to circulate them to all the experts. , Comrade Liu Zhenxiang will also brief us on the relevant situation." ?Given the current status of everyone in the conference room, they rarely encounter things that need to be circulated, but it also illustrates the importance of this matter from the side. Total pressure distortion evaluation I remember it was GJB/Z64-94? Yes, but that standard really has no operational value ????When they heard Ding Gaoheng name the two documents, a group of experts below also began to discuss in whispers. Since it was a short-notice meeting, most people only knew that they were coming to attend a symposium related to the aviation industry, but they did not know what the specific content was. About twenty minutes later, the file was finally transferred to the end. The conference room became quiet. Like Yan Zhongcheng before, although there is not enough time for everyone to read the contents, for these industry insiders, they can roughly judge the value of this thing with just two glances. Ahem Liu Zhenxiang coughed twice: This guide was compiled by the 606 Institute during the high-altitude bench test of the improved turbojet 14 engine, and they are now conducting the intake distortion test according to the steps. We know that the year before last, we issued our own national standards based on the introduction of American standards, but in terms of specific engineering applications, the 1994 standards still have some shortcomings. For example, we dont know what impact different forms of distortion spoilers can have on compressor stability, how much steady-state and dynamic distortion intensity the same distortion spoiler can produce, and whether the integration time scale affects the stability margin. influential" This guide issued by the 603 Institute based on the turbojet 14 engine testing experience addresses the issues of ambiguity in the 1994 standard and incompatibility with my countrys aviation industry system at both the operational and theoretical levels. Supplement and correction. Hearing this, even Ding Gaoheng, who was sitting in the first place, showed a helpless smile. The formulation of national military standards requires approval from the Commission of Science, Technology and Industry for National Defense. In the early 1990s, faced with an almost blank standard system in China, the biggest problem faced by the Science and Technology Committee was not even that it didnt know how to establish standards, but that it simply didnt know what standards needed to be established. So the principle at that time was to ignore the specific content first, rely on borrowingism to occupy the pit, and establish a standard system. To make an analogy, it is probably like building a library from scratch. Because I have no experience, I have to follow the example of other libraries and first determine the book classification method and required books. As for the specific books, I can slowly fill in them later. ?In this case, Liu Zhenxiangs comment that GJB/Z64-94 still has some shortcomings really saved the Committee of Science and Industry enough face. After all, it is actually a shell, equivalent to a fake book placed on the bookshelf to occupy a place... "I think this guideline is already very operational. You can consider sending an expert team to the 624 Institute to confirm the ground test results of the turbojet 14, and rely on the content of the guideline and existing engineering experience to evaluate the GJB/Z64- The operation and evaluation specifications in 94 are modified to better conduct distortion experimental evaluation technology research. ? This kind of internal small-scale symposium was relatively casual in nature, and Liu Zhenxiangs status in the field of aviation power was very transcendent, so he did not make any meanderings, but directly expressed his attitude after the introduction. I think the person who wrote this guide did not want to revise the old standards. As soon as Liu Zhenxiang finished speaking, another expert sitting at the end of the conference table expressed a different opinion. He flicked the document in his hand: Because I am the last one here, I have some advantages and can see more time than all the comrades. "The 1994 standard was formulated based on the ARP and AIR series of general specifications. It has a strong British and American style in the evaluation method. For example, it uses a distortion network to simulate a typical distortion flow field and studies the impact of distortion on stability by describing the maximum instantaneous distortion. The influence of compressor surge or stall is established and the maximum dynamic distortion is established. On the one hand, this method is very costly and cumbersome. On the other hand, it does not fit well with my countrys existing aero-engine design system. "But the guide we just looked at has a completely different idea. It uses the turbulence degree in the engine inlet comprehensive distortion index to evaluate pressure distortion. The test method also uses the plug-in board that Academician Liu once proposed in 1986. Simulation method, but the plate shape should be optimized and discussed. "More importantly, in the last part of this guide, it also mentions the comprehensive aerodynamic stability assessment method in the engineering design stage. I took a brief look at it and it is definitely something that can be written by someone with experience in engine design. It is a guide. Very strong." So this is by no means a tinkering with the 1994 standard. We should treat it as a brand new standard that belongs to China! (End of this chapter) Chapter 114 The market cannot buy technology (two-in-one) Chapter 114 The market cannot buy technology (two-in-one) After getting through the phone, Du Yishan explained the current situation very simply and expressed that he wanted to hear the other party''s opinion. ?Of course, some content related to Ding Gaohengs identity has been hidden. Mainly, he was worried that if Chang Haonan knew that the director of the Science and Technology Commission was present to observe, it would affect the latter''s judgment. Or make the other person feel apprehensive when speaking. After hearing this, Chang Haonan''s first reaction was actually a bit confused. Even confirmed it with Du Yishan: Sowhats happening now is that because of the document I submitted, experts are arguing about which standard system should be chosen? Thats what happened, so I called you to see what you think as an author. Du Yishan gave an affirmative answer: "I have already read the contents of the document. From the theoretical basis to classification instructions to engineering experience and operating methods, it is very systematic and complete, so what you submit is definitely not just a technical manual, but a complete Analyze and evaluate the system. In this case, you must have had your own ideas about Chinas standard system during this process, right? "Well" Chang Haonan on the other side of the phone was speechless. He wanted to say that he didn''t. ??As a person whose main work experience before rebirth was in the 21st century, it is almost instinctive for him to use the autonomous system of later generations that was developed with reference to Russian and French technologies. So when I wanted to write this evaluation method, I never thought it would trigger such an exaggerated reaction. ?The original intention was to write a technical manual to make the GJB/Z64-94, which was impossible to start engineering, more complete and more usable. ??However, since Du Yishan has already figured out the plot in his own mind, it is impossible for Chang Haonan to slap his teacher in the face. And after the formers reminder, he has already realized the problem. At this point in time, since the domestic production plan of the MD90 is progressing smoothly and rapidly, the industry still has very strong illusions about the other side of the ocean, believing that it can completely rely on the US aviation industry system and use the "market for technology" approach. Improve your capabilities in the aviation field. Although the two countries had a serious naval and air confrontation at the beginning of the year, most people outside the military and military industry were not so sensitive to this matter. In fact, not only the civil aviation industry, this illusion actually exists in almost all fields. ? It was not until 1999, 2001, and even 2019 that I was subjected to all-round suppression that I was awakened bit by bit by painful lessons. The market cannot buy technology. This is true for all industries, whether it is automobiles, aviation, chemicals, or electronics. ?Giving the market away without technology will only allow others to eat up the market and suppress your technology at the same time! If you cannot find your own system, relying on others will only lead to a dead end. ?Of course, in 1996, it was a fool''s errand to immediately change people''s minds. In fact, even Chang Haonan himself in his previous life gradually changed after going through such a process. ?But everything must have a beginning. And this time''s accidental collision may be a good opportunity. Thats right, teacher. After thinking about this quickly in his mind, Chang Haonan made a decision: Actually, I already had this idea some time ago, so when I was improving the aviation engine stability evaluation system this time, I specifically restructured the standard part based on the actual situation of the current domestic aviation industry. Although this is only a small part of the entire industry standard system, because it coincides with the high-altitude simulation test of Turbojet 14, I think this is a good entry point. If Chinas aviation industry wants to develop, it must have its own, independent development system. I hope to prove this through the Kunlun project. Over the phone, Du Yishan and Ding Gaoheng looked at each other, and they both saw surprise in each other''s eyes. ?Although Chang Haonan did not directly state which party he supported, from his just answer, it is obvious that his position is to make major changes to the existing standards. Or simply put, start from scratch. ?Even more radical It is not just about GJB/Z64-94, but also about reconstructing the standard system of the entire aviation industry and unifying the things that were originally pieced together. Neither of them thought that an undergraduate who had not yet graduated would think about issues from such a high level. ??And it really made him think about something. Thinking of this, Du Yishan asked a second question with strong interest that was not originally planned: "This is indeed a good idea, but Hufei is currently cooperating with McDonnell Douglas to produce the MD90 passenger aircraft, and the progress is quite good. If drastic changes are to be made to the standard system, how should such cooperation projects be handled? Do you think about it? Have you passed?" Of course Ive considered it ?Chang Haonan quickly organized his words while talking about less important content. He had never thought about the Hufei and McDonnell Douglas project before, and there was no need to think about it, because in a few months, the first thing Boeing would do after acquiring McDonnell Douglas was to disrupt the project and have it destroyed. MD90 related technical information from China. The meaning is very obvious. Even if you dont want this model, it is impossible for you to get the relevant technology from China. ?Of course, Boeings methods are very clever. They first stated on the surface that "the acquisition will not affect the cooperation on the main line project. As long as Hufei is willing to continue to work, Boeing will continue to provide support." But then he turned around and announced that he would completely close the McDonnell Douglas production line in the United States by the end of 1999 and would no longer develop new McDonnell Douglas family aircraft. . ?This move directly led to the collapse of the global civil aviation industry''s confidence in the MD series passenger aircraft. Even if Shanghai Aircraft Corporation built the aircraft, it would not be able to find customers at all. ??If domestic airlines rely on subsidies to internally absorb the problem, then building an aircraft will cost nearly 100 million yuan. ?As a result, the public opinion that "it is better to build than to buy" once again gained the upper hand, and finally Hufei had no choice but to proactively stop the project. During the ten years of cooperation, in order to adapt to the American system represented by McDonnell Douglas, Hufei has given up the standards and experience formed during the Yun-10 period. Now that MD90 production has been stopped, the American system has not adapted. In the end, the attempt was all in vain. In fact, the mainline aircraft project to jointly produce the MD90 went astray from the beginning. The aviation manufacturing industry is a technology-intensive industry that can provide a large number of high-paying jobs and cultivate a group of skilled workers and engineers. ?These talents will also be helpful to the development of China''s own aviation industry in the future. From this perspective, there is no problem in manufacturing aircraft for others. ??And the more produced, the better. It would be best to produce the entire aircraft in China. However, in the MD90 project, OEM production is only a small part. The real focus is that someone wants to fully bind the entire aviation industry, at least the civil aviation industry, to the United States. This is not going to end well. ? Even if it is really established, it is just a flower shelf that will fall down as soon as it is pushed. Not to mention China, even Japan, a die-hard brother of the United States, has suffered a **** blow on this road. ??Every time there is any sign of a breakthrough, he will be suppressed from all directions with fatherly love. By that time, if your entire industry system is completely dependent on the other party, you will naturally be unable to fight back. Chang Haonans idea is that long-term pain is worse than short-term pain, and there is no need to drag it out until 1999 like in the original timeline. It would be a good thing to cut off from the US aviation industry system earlier. ?Save these three years and use it to improve your own system, or even go back and do pre-research on new models. Wouldnt it be good? Independence is the only right path. But there is no way to say this directly. On the one hand, Chang Haonan, as a person with no background in commercial law, makes such a headless judgment directly, which is outrageous and unconvincing. On the other hand, Chang Haonan really doesnt understand these things. He only knows that Boeing finally successfully acquired McDonnell Douglas. As for the exchange of interests and infighting... Sorry, I dont know. So in the end, he decided to adopt a more diplomatic approach. Teacher, I think that in terms of specific technologies, it is necessary to absorb or introduce advanced foreign experience. It will also help us quickly narrow the gap, but this is not inconsistent with us establishing an independent aviation industry system. "I have seen a story about the Ermao Black Sea Shipyard in a magazine before. After the disintegration of the Soviet Union, the No. 0 dock of the shipyard at that time was the Ulyanovsk aircraft carrier, which was about one-third complete. The West has been worried It will be completed after the turbulent period." Soon a company from Norway approached the Black Sea Shipyard and ordered two cargo ships with a displacement of 100,000 tons, but they needed to be built according to Western standards, and only the currently occupied No. 0 slipway in the entire shipyard could build this size. ship." Ermao finally decided to dismantle the Ulyanovsk to make room for it, and let the Black Sea Shipyard adopt Western shipbuilding standards to transform the slipway in preparation for the production of new orders. But after the aircraft carrier was demolished, the Norwegian company suddenly announced the cancellation of the order, and after paying a liquidated damages, there was no news again. The Black Sea Shipyard abandoned its shipbuilding capabilities and experience under Soviet standards and failed to obtain new orders, so it quickly lost its ability to build large ships. After telling this story, Chang Haonan stopped talking any more. He knew that Du Yishan would definitely understand. In fact, many people know the story of this Black Sea shipyard. ?The American approach to the MD90 project is almost a reset of the original version. What you are playing is a conspiracy. ?However, although the method is not new, it is very easy to use. ?Chang Haonan was able to detach himself and sort out the whole thing, not because he was smarter than others. Simply because he figured it out and knew the direction of future development. ??Just as Chang Haonan was thinking, the faces of Ding Gaoheng and Du Yishan on the other side of the phone became serious. They certainly knew what Chang Haonan wanted to express. It is nothing more than that China Aviation Industry is also facing the same situation as the Black Sea Shipyard. The MD90 is the two freighters ordered by the Norwegian company. Okay, I understand what you mean. Du Yishan took a deep breath, knowing that todays call should end here: The Science and Technology Commission will consider this matter comprehensively, and you will promote the simulation test of the Turbojet 14 as soon as possible. If you want to expand the evaluation standard to a new standard, sufficient engineering data is necessary. Okay, teacher. "Then you go ahead and do your work first. The subsequent decision will be issued in writing and we will discuss it then." After finishing speaking, he hung up the phone, then raised his head and looked at Ding Gaoheng across the desk again. The atmosphere of silence lasted for about a few minutes. Ding Gaoheng lit up a cigarette again and took a puff this time, but his movements were not very skillful. This student of yours is indeed very different. Todays situation is completely beyond my expectation. Du Yishan waved his hand: I thought this would be an engineering-focused conversation In any case, the possibility raised by Comrade Xiao Chang cannot be ignored. Ding Gaoheng took another puff of cigarette: If this is really the case, all we can do is make up for it. Obviously, after talking to Chang Haonan, he had made a decision. The MD90 project has even started production of parts and components. It cannot be stopped without any reason. How are you going to deal with it? ??Although this is a question, judging from Du Yishan''s expression, he obviously already has his own idea and is just checking the answer with Ding Gaoheng. Mr. Du is asking questions knowingly The latter threw the cigarette **** into the ashtray and rubbed his dry lips: Comrade Xiao Chang also said just now that introducing advanced foreign experience is not inconsistent with our establishment of an independent aviation industry system, so... Change the focus of the mainline aircraft project to digesting and absorbing key technologies, and summarizing and accumulating experience in the assembly and manufacturing of large civil aviation aircraft. We will also use these in the future. When the adjournment time ended and the meeting resumed, the atmosphere became completely different. Ding Gaoheng, who previously sat at the top and never expressed any attitude, almost got straight to the point. He said that the construction of a new and independent aviation industry standard system is imperative. Many of the old standards are just to solve problems when objective conditions are insufficient to form a basic framework system. Nowadays, with the advent of technology, In order to improve the development and progress of the system, consideration should be given to completely supplementing and replacing inappropriate content. As the director of the Science and Technology Commission, the weight of his statement is naturally completely different. The second half of the meeting took less than half an hour. ?Although several experts on Hufei chose to reserve their opinions, they still agreed to start preparations for the establishment of a new standard. The advantage of the system of the Commission for Science, Technology and Industry for National Defense is that although there may be different opinions during the discussion process, after the final decision is made, the entire system can still ensure that it works together. So an expert group of 10 people headed by Liu Zhenxiang was set up that night. Their tasks are twofold. The first is to go to Fucheng to follow the testing of the Turbojet 14 and conduct a more detailed review of the "Aviation Engine Inlet Distortion Test and Assessment Method". Second, if the approval is successfully passed, then GJB/Z64-94 will be reconstructed on the basis of the "Method" to establish a new gas distortion test standard that is adapted to China''s actual conditions as a new standard for the aviation industry. starting point of the system. ??The hurricane caused by Chang Haonan''s butterfly is becoming more and more violent. The extra update is still in the afternoon (End of this chapter) Chapter 115 Expert review (for last month’s monthly ticket financier flankerr Chapter 115 Expert Review (Added update 38 for flankerr, the monthly ticket holder of last month) The next afternoon, another Boeing 737 landed at Fucheng Southern Suburban Airport. The expert group on the plane was naturally formed just last night. Liu Zhenxiang, who led the team, walked down the gangway first, with a look of exhaustion and excitement on his face. After the meeting last night, the 10 members did not even have time to go home before the Commission of Science, Technology and Industry for National Defense began to prepare for the standard approval work overnight. After all, the assessment method submitted by Chang Haonan seems to be quite complete. They also hope to start work immediately after landing, and it is best not to waste any time. Until I set off for Nanyuan Airport, I finally came up with a feasible working method. So from yesterday to now, Liu Zhenxiang only rested for about two or three hours on the flight just now. The dazzling afternoon sunlight made him squint his eyes slightly. For him, Fucheng is almost like a second home. In the past nearly twenty years, he has hardly left here except for necessary meetings. In front of me was a very familiar scenery, and a minibus specially sent by the 624th Institute to pick up the airport. There were several receptionists from the 624 Institute standing at the door of the car. The first one saw someone getting off the plane and ran up quickly. Academician Liu, welcome home. Although Liu Zhenxiang is no longer responsible for presiding over the work of Institute 624, his prestige and status here will not change. The two then shook hands. ?After a few simple greetings, the other party may have seen Liu Zhenxiangs tired look that he couldnt hide: Should we arrange for the comrades in the expert group to take a break first? Liu Zhenxiang wanted to refuse directly, but he still looked back at the other people following him, hesitated for a moment and asked: How are the preparations in the office for the review? Comrades from the 601st Institute are ready to start the review at any time, and the intake distortion test of the turbojet 14 engine will also be conducted later today. "oh?" Hearing these words, the fatigue on Liu Zhenxiangs face was almost instantly wiped away: In this case, we have to hurry up. Get in the car, dont slow down because of us. The review meeting was held in a two-story building not far from the control room of the high-altitude simulation test bed. But as the absolute protagonist of this review, Chang Haonan did not appear at the door of the venue until the last moment. He is still wearing the blue work clothes he wore during the experiment. Even the sweat on his face has not been wiped off. ?However, no one cares about this. Everyones attention is focused on the materials prepared for themselves. After all, these things were all completed in 624, so the content is much more detailed than the one submitted to the Commission of Science, Technology and Industry for National Defense, and even includes some test data of the Turbojet 14 for theoretical proof. More importantly, finally there is no need for ten people to read two books together... The performance of this turbojet 14...isnt it for launching satellites? Soon someone noticed the jaw-dropping data written in the document. "The thrust-to-weight ratio in the bench state is 7.2... This data on paper is higher than the RD33 used in the MiG-29, and the fuel consumption is not much higher. Is it reliable..." "Don''t just look at the thrust-to-weight ratio at sea level. Look at it. The envelope range it draws still has obvious characteristics of a turbojet engine. Overall, it is still worse than the third-generation turbofan, and it does not look like the result of a satellite. This difference is too small. I think the only two test items left in the test project are air intake distortion and full life test. No wonder we have to submit the test standards at this time..." As the only person in the expert group who is familiar with Chang Haonan, Liu Zhenxiang did not participate in the discussion about the performance of the turbojet 14, but took advantage of a short period of time before the review meeting began to come to the former: Xiao Chang, you can be said to be a blockbuster this time. Almost the entire Commission of Science, Technology and Industry for National Defense is paying attention to this project review. No wonder there is such a big battle... Chang Haonan looked at the 10 seats divided into two rows in front of him, and he did not expect it to be of this size. After receiving the evaluation guide you sent yesterday, the Science and Technology Committee immediately held a symposium. When it came to whether to start a new approach to new funding standards, the exchange of opinions was quite fierce. Later, Director Ding directly expressed his position, saying that if Chinas aviation industry wants to develop, it must have its own and independent development system... Liu Zhenxiang did not know that Ding Gaoheng and Du Yishan had contacted Chang Haonan during the recess. He just assumed that the former had his own plans and did not express his position at the beginning. He just wanted to hear everyone''s thoughts. "etc" ?Liu Zhenxiangs narration just now made Chang Haonan more and more wrong. ??Why does the speech made by Director Ding of the Science and Technology Committee at the meeting feel so familiar, as if I have heard it somewhere... Oh, it turns out I said it myself. ?Thats okay. But the person who called yesterday was obviously Du Yishan... ?Chang Haonan gradually formed a guess in his mind. Mr. Liu, did my teacher also attend the meeting you mentioned? He asked cautiously. Of course, but he is not an expert in the field of aviation development. In addition, he is old and has concerns about avoiding suspicion, so he did not join our review team. ifier ?After hearing this answer, Chang Haonan''s facial muscles twitched slightly. ??When Du Yishan was on the phone yesterday, there were indeed other people present. Fortunately, after recalling it, he determined that he didn''t say anything out of the ordinary. Judging from Director Ding Gaohengs subsequent statement, the other party should still agree with his idea. ??Its not surprising if you think about it carefully. The formers father-in-law presided over the national science and technology work in the 1950s and 1960s, commanding many key national defense projects such as two bombs and one satellite. He was called a marshal in the science and technology community. Having such a background, you will naturally be more inclined towards self-reliance. ?However, the person in charge of the Science and Technology Committee has been convinced before the review meeting began. Why does it seem that he feels personally appointed... Dont put too much pressure on the review. Just follow your preparations in advance. ?Seeing Chang Haonan''s expression changing constantly, Liu Zhenxiang thought he was a little nervous because of the unexpected high level of attention, so he patted the former''s shoulder lightly: "Of course, national standards involve not only technical aspects, but also industrial policies, development routes and even national strategic decisions, so wait a while and the expert group may ask questions related to these aspects, so you should not feel any psychological burden. , Speak your mind boldly. Chang Hao Nanxin said that my courage yesterday was so bold that you cant even imagine it, but on the surface he just nodded: I know, dont worry, Academician Liu. In short, this is how the expert review of the "Aeroengine Inlet Distortion Test and Evaluation Method" began. (End of this chapter) Chapter 116 A new starting point for the autonomous aviation industry (two-in-one) Chapter 116: A new starting point for the independent aviation industry (two-in-one) Because the preparation time is very short and there is still a lot of data to be obtained, Chang Haonan has not conducted any rehearsals before. Fortunately, the entire assessment method was basically completed by himself. Although the aviation industry standards involved have not yet been written out, they have been deeply rooted in Chang Haonan''s mind. So I came prepared. Experts, I will give a detailed description and explanation of the contents of the Guidelines for the Assessment of Inlet Total Pressure Distortion of Aviation Turbojet and Turbofan Engines. Chang Haonan stood next to the projector screen, looked at the ten expert panel members in front of him, took a deep breath, and officially started his introduction. The first part is naturally the definition. ?Although the people sitting here are all experts in the field of aviation power, this link is still essential. Because what he is introducing is a "standard". And it is the standard that created the world. Just like books running on the same text or cars running on the same track. Before this, 10,000 people can have 10,000 interpretations of a certain concept in their minds, but after that, they must be unified. Standardization is the cornerstone of science and the romance of science. The aerodynamic stability of an aeroengine refers to the ability to maintain the working state of the engine relative to disturbances based on aerodynamics, regardless of factors such as engine structural strength Because the highest pressure ratio point and highest efficiency point of the high-performance compression component are very close to the stability boundary; and in order to ensure its stable operation, the surge margin is set so that the boosting capacity that the compression component can provide is not fully utilized. To some extent, it is equivalent to wasting the design potential of the engine..." For compression components, the characteristic diagram shown in Figure 1.3 is divided into a stable operating area and an unstable operating area, and the dividing line can be defined as the surge boundary "There are many types of destabilization factors that affect the aerodynamic stability of the engine, and their effects on the engine are also different. Some destabilization factors increase the common working line of the compression components, and some destabilization factors move the stability boundary of the compression components downward... " Chang Haonan projected a characteristic diagram of compression components onto the screen and introduced it carefully with a long pointer in his hand, while the ten experts below were also busy writing and carefully recording the content they were interested in. "To this end, I analyzed and counted a large number of engine instability failures that have occurred in the past, and summarized 16 types of stability degradation factors in the evaluation specifications, including pressure distortion, temperature distortion, shock wave, wind gust, Reynolds number change, switch-on/ Disconnect the afterburning force and unsteady heat transfer..." Considering that there are many types of destabilization factors, I divided them into four major categories according to the mechanism that affects the engine surge margin, and established mathematical models of their impact on engine aerodynamic stability: steady-state destabilization factors, dynamic process Class destabilization factor, intake distortion class destabilization factor, statistical class destabilization factor. "For the first three types of destabilization factors, numerical calculation methods are used for quantitative analysis and evaluation; for the fourth type of destabilization factors, statistical normative values ??will mainly be used to evaluate them. Below I will focus on the third type, which is the air intake Detailed engineering methods are given for the evaluation of distortion-type destabilization factors..." ??If it were Chang Haonan who had just been reborn, it would still be quite difficult to explain even a part of such a rather complicated set of standards. But in the past few months, especially since joining the 83rd Project, his past shortcomings in engineering experience have been strengthened, so he can easily explain some slightly obscure content with calculation examples or illustrations. Furthermore, Chang Haonan currently has a unique advantage. It was he who really participated in the Turbojet 14 project. The first engine model in China that has gone through all testing processes. Although I didnt participate from the beginning, it was enough. ?After communicating with Du Yishan on the phone yesterday, Chang Haonan began to consider restructuring the standard system of the entire aviation industry. As a person who has experienced the second decade of the 21st century, only he knows how great it is for engineers to have a completely independent set of technical standards. Many development processes can be completed using encapsulated standard models as easily as building blocks. By analogy, its like writing programs in assembly language or even machine language in the past, but now you can suddenly use high-level languages ??directly. Therefore, when introducing the idea of ????numerical simulation, he specially drew a pie for the members of the expert group present: It should be noted that this evaluation guide is not only an operation manual for aerodynamic stability testing, but also a part of the aerodynamic stability analysis system of aeroengines. "When our standards in the field of aerodynamics are complete and accurate enough, we can establish a simulation system suitable for multiple types of engines to evaluate the impact of various destabilization factors on engine aerodynamic stability, allowing users to choose packaged The standard model is assembled into the target engine for simulation, thereby guiding the design process of the inlet matching the engine..." When Chang Haonan talked about this, several experts on the other side had already expressed enchanted expressions. Of course they know that this is something that has not been written yet. But this cake is so delicious. China''s aero-engine project has long been used as a supporting aircraft project and lacks technical continuity. Therefore, the pre-research and design process of each new model is like going through a disaster, requiring a lot of repetitive work, wasting a lot of time and In terms of funding, the results are often not good. ?The experts sitting here have all experienced this helplessness, so they hope that the idea proposed by Chang Haonan can come true. You must know that modular numerical simulation and simulation of engines is something that developed countries, including the United Kingdom and the United States, have never thought of. ?In this era when most people want to follow the footsteps of the United States or Europe, it is not easy to have such an "out of the ordinary" idea. Some people have even begun to imagine the impact this simulation system will have. The explanation is gradually coming to an end. ...If the local surge margin SM1 is required to satisfy [max (SMP^2, SMA^2) + SMW^2] + SMT + SMW>SM1, then the local surge margin calculation is required to compensate for temperature distortion The method is After obtaining the local required stability margin of each destabilizing factor, the local required stability margin of the non-random factors is considered by the algebraic sum method, and the local required stability margin of the random factor is considered by the sum square root, so that Get the total required stability margin. Among the several typical operating conditions considered, the one with the smallest remaining stability margin is the weak link in the engines aerodynamic stability design, and is also the object that needs to be optimized during the engineering design stage. Speaking of this, he directly released a diagram of the total required stability margin of the turbojet 14. It clearly states that when flying at high altitudes or when the afterburner on/off conditions change, this is the weakest link in the stability of this engine. Consistent with the data obtained during the test flight. ?Chang Haonan turned around and bowed slightly to the members of the expert team. This is the end of my introduction on the aerodynamic stability testing and evaluation methods of aeroengines. I have done a little bit of work. Thank you all. There was a brief silence. About a few seconds later, the first round of applause from someone unknown rang out. Subsequently, the entire conference room was instantly filled with applause. ??Although the members who entered the expert group were all those who expressed their support for setting new standards at yesterday''s Science and Technology Committee symposium, no one expected that Chang Haonan''s work had been completed to such a high degree. At this point, everyone knows that the first standard that belongs entirely to China Aviation Industry is about to appear. ?Of course, the routine question-and-answer session is still indispensable. Its just that the atmosphere is completely different from ordinary review meetings. Under normal circumstances, the nature of the questions raised by the review team is more similar to "questioning", which requires the people on the stage to explain, clarify or correct things that were not explained clearly before, or there were omissions or even mistakes. Somewhat similar to a graduation defense, but much more serious in nature. After all, national standards cover a wide range of areas and have great influence, and there is no room for sloppiness. Therefore, sometimes, this questioning process may even last more than a daybecause problems may be discovered and need to be corrected off-site. So it is not uncommon for the review meeting to last for ten days and a half. However, in Chang Haonan''s case, because the introduction he just gave was extremely complete, and he also had the experience of a real project such as the Turbojet 14, the style of the question-and-answer session this time was more like...asking for advice. After all, too many new concepts, theories and engineering methods have been introduced at once. Comrade Chang Haonan, in the evaluation guide document you provided, it was mentioned that a plug-in plate distortion simulation device is installed at the compressor inlet. Why should this plug-in plate be set as a single crescent plate? The first person to ask a question was a middle-aged engineer who didn''t look too old. Judging from the name tag on the table, his name was Lin Yuang. At yesterday''s meeting, it was he who was the first to propose that a new standard should be established based on the assessment guide, rather than making minor improvements based on the old 1994 standard. It is precisely for this reason that Lin Yuang pays great attention to every detail that Chang Haonan talks about. As the initiator, he must ensure that nothing goes wrong. ? Many people with an engineering background are more troubled by issues involving principles. ?However, Chang Haonan''s theoretical foundation is relatively solid, and he has collected a lot of data in the past few days, so he walked steadily to the blackboard next to him without any panic, picked up the chalk and drew four simple diagrams, and at the same time explained: In the test of Turbojet 14, we tried four different plug-in distortion simulation devices, including single-piece crescent shape, two-piece crescent shape, circular ring shape and sector shape. "According to the results obtained, the four design schemes are relatively close in their ability to generate distorted flow fields, but Scheme 1, which is a single crescent plate, involves the fewest independent variables and only has one baffle height H. For the early stage, Numerical simulation and optimization work for stability during the engineering design phase is more beneficial. For example, during our renovation of the turbojet 14 compressor, we specifically considered optimizing the surge margin Following this, another person asked: In the test operation method in the guide, you mentioned that it is necessary to use a plug-in distortion simulation device to gradually increase the distortion intensity until the engine enters an unstable operating state, in order to obtain the stability margin and Coefficient of distortion sensitivity, does this mean that an engine must be destroyed every time a stability assessment is performed? " "This depends on the condition of the engine itself. Theoretically, for a well-designed aeroengine, the distortion index can be adjusted to bring it into a rotating stall state that will not cause permanent damage to the structure, but this requires a lot of experiments. and simulated data as support. Facing this slightly sharp question, Chang Haonan did not change his expression and still had a confident smile on his face: "This is what we hope to do in the future, which is to use the flow data at the compressor inlet to determine the condition of the engine during the flight of the aircraft. When there are signs of surge, we can remind the pilot or even actively adjust flight attitude to avoid more serious instability failures. Furthermore, stability evaluation is part of the extreme capability test, just like the static test of the aircraft and the full life test of the engine, so damage to the test object is originally planned. The questioner nodded, obviously agreeing with this explanation. During the flight tests of most models, prototype No. 02 will not be seen, because generally No. 02 will be a static test machine, and the last part of the static test of the whole machine is to Aircraft destruction as termination condition. Although it may sound a pity, it is essential. Chang Haonan answered several questions in a row that followed fluently. Finally, after more than four hours of marathon review, Liu Zhenxiang, the leader of the expert group, wrote the words "agreed to pass" on the submission and signed his name. Subsequently, nine other people also signed, which was regarded as the official approval of the evaluation method at the level of the Commission of Science, Technology and Industry for National Defense. After going through some subsequent approval processes, it will be officially "regularized" and become a standard. According to the numbering convention, it will be named GJB/Z64A-96. This is a name worth remembering. ?Although it is inconspicuous, it is the starting point for China''s aviation industry to get rid of external dependence and truly move towards independence. ?After the review work is completed, the expert team will not leave Fucheng immediately, because one of their first-stage tasks is to track the testing of the turbojet 14. It can be regarded as an intuitive understanding of this set of evaluation methods. ??When Chang Haonan led ten members of the expert team into the control room of the high-altitude test platform, Yao Mengna''s expression, which was originally calm, became a little stiff. ?Even if he is a student of Academician Du Yishan, not everyone can face the expert group sent by the Commission of Science, Technology and Industry for National Defense without changing his expression or heartbeat like Chang Haonan. ?This battle is just right for an undergraduate student. But its a bit too big for a PhD student. What''s more, she always felt that she was just helping Chang Haonan, and she was not very confident in on-site command. Otherwise...you will still be in charge this time? ??While several members of the expert team were pulling Liu Zhenxiang to ask questions, Yao Mengna approached Chang Haonan who was taking a big gulp of water. Its okay, dont be nervous, just follow the steps. Chang Haonans voice was already hoarse. The review meeting that lasted from afternoon to evening almost exhausted all his energy: The conductor of the test in the past few days has always been You. Now if I change the person on the spot, I need to start the running-in all over again, which is inappropriate. ?Seeing the rare nervous expression on the senior sister''s face, Chang Haonan patted her shoulder to encourage her. As a result, the other party seemed to become more nervous... I posted it last night when I forgot to set it...I will update it in the evening as usual (End of this chapter) Chapter 117 Demand from Pakistan Railway (for monthly ticket financiers last month fl Chapter 117 Demand from Pakistan Railway (Added update 48 for flankerr, the monthly ticket holder of last month) ??If not compared with a cheater, Yao Mengna is definitely a big-hearted person among her peers. ??Furthermore, the stability of the turbojet 14, which has been replaced with a new compressor, has indeed improved a lot compared to before, and there were no surprises during the previous tests. ?So after getting over the initial nervousness, she gradually calmed down and stood in the command position in the control room again. Xiao Chang, if this intake distortion test ends successfully, will you do a full life test next? Liu Zhenxiang sat down next to Chang Haonan and asked as he looked at the staff who were debugging the equipment. As the person in charge of the SB101 high-altitude platform project, he is naturally very familiar with the related technologies of aerospace ground testing. However, similar to the total pressure distortion assessment, China currently does not have a unified standard for the entire high-altitude simulation test. Basically, it is The aviation design unit tests several agreed-upon items. ?There are actually very few people like Yan Zhongcheng who can think of more than a dozen test projects and still do them all. This is the problem caused by inconsistent standards. If the chief designer has no experience, many problems may not be noticed until an accident occurs. We have set up a total of 13 test subjects, but they are divided into two parts. This intake distortion test is the eighth item and the last item in the first part. As Liu Zhenxiang, basically nothing in the aviation power field is kept secret from him, so Chang Haonan answered directly after thinking about it for a while: Because the Turbojet 14 is not a brand-new engine, and there is still a certain amount of pressure on the schedule, after the first part of the test is completed today, the aerial platform at the flight test institute will begin flight tests. "Such as plateau and high and low temperature starting tests, environmental icing tests, and the full-life test you just mentioned will be carried out simultaneously with the flight test after the No. 03 prototype is delivered. Anyway, the test flight of the 83rd Project is currently underway. It also doesnt involve the cold or plateau environment. Yes, your testing process can be said to be quite complete. Liu Zhenxiang nodded slightly, with some praise in his tone, and then changed the subject and asked: Then do you want to continue to follow Yan Liang for testing? Chang Haonan shook his head: "I probably won''t participate in the aerial platform test, but the No. 04 demonstrator in Shengjing will soon be equipped with a new engine for test flight. You know, I have participated in both wing and power changes involved in the full prototype. So I have to show up no matter what. Thats it "Do you... need my help with anything?" Chang Haonan heard the helplessness in the other party''s tone. "Well, this time I just took advantage of the news you made. I want to combine our own engineering experience to formulate the standards for ground simulation testing and evaluation of the entire aero-engine. It would be best if you could help me. Obviously, after the Commission of Science, Technology and Industry for National Defense decided to build an independent aviation industry system standard, even Liu Zhenxiang, who is no longer responsible for the specific work of Institute 624, has ideas in this regard. In other words, there are a few Chinese aviation people who, from the bottom of their hearts, do not want to have a set of standards applicable to the actual situation in their country. Its just that we didnt have this condition in the past. ?And Chang Haonan is naturally happy to see this situation. After all, this is in line with the goal he set at the beginning of his rebirth - Drive the efficiency of the entire Chinese scientific research system by providing key technologies and methodologies. ??If he were to write a complete set of national military standards related to the aviation industry, he would probably not be able to finish them within a few years. ?But now it only took Chang Haonan a few days to mobilize a large number of big guys like Liu Zhenxiang to invest in building independent system standards, and the efficiency is naturally thousands of times higher. ??And it can also train a group of new scientific researchers. So he finally rejected the other party''s invitation because he was too pressed for time. Otherwise, wouldnt all of the above mentioned exist? Well, it seems we are going to lose one new force. ?Chang Haonan''s rejection did not make Liu Zhenxiang too disappointed. He also knows that the progress of the 83rd Project must be a top priority now. ?Moreover, the difficulty with new standards is actually at the beginning, how to get decision-makers to make up their minds. Chang Haonan has already completed this part. "But Lao Du was right about you. In just a few months, you have been able to make achievements in both the outflow and inward flow of aircraft. To be honest, I have never seen such a genius as you." No, noif I have to say it, you told me at school to pay attention to the engine problem. Liu Zhenxiang burst into laughter upon hearing this answer. He did say this at the time, but his original intention was just to improve some data. I didnt expect that Chang Haonans attention would almost turn the entire aviation power field upside down. ?But, well done! At the same time that the 624th Institute was preparing for the intake distortion test, the 132nd Factory, also located in Sichuan Province, was at the same time. ?Lu Yuying is waiting for a group of guests who are about to arrive Pakistan Air Force delegation. In fact, they can be regarded as old friends to the 611th Institute, the 132nd Factory, and the China Aviation Technology Import and Export Company that led the team. In 1965, the United States, which was worried that India would completely fall to the Warsaw Pact camp, rejected Pakistans request for arms sales at the most critical moment, and the latter had no choice but to purchase Chinese equipment. By 1971, including exports and aid, China had provided a total of 230 J-6 fighter jets, which had received good reviews during use. In the following two decades, although Pakistan has never given up purchasing advanced fighter jets from the United States and France, Chinese models such as the J-6, Qiang-5C, K8 and J-7P have always existed in their equipment sequence, and through the The overhaul and modification of the J-6 initially established its own aviation industry. With such a relationship, it is nothing new for a delegation of the Pakistan Air Force to visit China and visit the aviation industry sector and even the air forces active equipment. But this time, the other party came in a hurry. So much so that the 611th Institute only received the notice from Huaxia Aviation Technology three days ago, and the content was very little, and only very hasty preparations were made. Fortunately, the main foreign trade model they plan to promote next, that is, the J-7MG, happens to have a prototype that is still undergoing basic testing after rolling off the assembly line at the 132 Factory, so it is not too timid. Compared with the J-7P currently equipped by the Pakistan Air Force, the combat effectiveness of the new model has increased by at least one-third. The J-7MG is actually the export model of the J-7E, so Lu Yuying, who is the chief engineer of the latter model, is naturally a more suitable candidate to come forward. Soon, a convoy of four minibuses and two jeeps stopped not far away. ??A middle-aged woman wearing a suit got out of the passenger seat of the Beijing 212 car and came to Lu Yuying. Hello, Chief Master Lu, I am Yang Huimei, the representative responsible for the reception and negotiation of China Aviation Technology. "Hello." ?Lu Yuying and Yang Huimei shook hands. ??While not all the people from the Pakistani delegation got out of the car, he quickly confirmed the situation with the latter. I wonder what the purpose of this delegation is here? The information given to me above is also relatively vague. Yang Huimei combed her hair and replied with some distress: But I communicated with their team leader on the way here, and I feel that they are making a big move this time, and they are not just planning to buy existing shelf products. "That" It seems they want to cooperate with us to develop a type of equipment more suitable for their national conditions, or to further develop their own aviation industry, but this is just my speculation. (End of this chapter) Chapter 118 We need better airplanes (2-in-1) Chapter 118 We need better airplanes (2-in-1) ??While communicating with Yang Huimei, Lu Yuying paid special attention to the members of the Pakistani delegation who got off the four minibuses. Looking closer, I did find some differences. Although most people are wearing military uniforms, compared with previous times, the proportion of air force officers in this delegation is significantly higher, and judging from their appearance and age, many of them look like active pilots. It is normal to bring a few pilots to experience flying when you come to buy an airplane. However, because most of the senior officers of the Air Force are pilots, it is rare to see so many young faces. ??Seeing the members of the Pakistani delegation getting off the car one after another, Yang Huimei couldn''t help but leave them alone. But before turning around, he still said to Lu Yuying: "In short, the situation this time is indeed special, and the superiors also attach great importance to it. Before I came out today, Deputy Commander Shen Tianfeng of the Air Force specifically set the tone and said that China and Pakistan would deepen exchanges in military technology and training." Looking at the other party''s leaving figure, Lu Yuying knocked on her head in distress. As an engineer and technician, he does not like this ambiguous statement. It would be nice if a precise range could be given, like aircraft design. Unfortunately, this is almost impossible in the field of foreign exchange. Since 1988, the two countries have confirmed their intention to cooperate based on the Super 7 project, a deeply improved version of the J-7. However, due to differences between the two sides on the technical aspects of the fighter aircraft, and the Pakistani interest in the middle turning to the F16, the project stagnated for a long time. It was not until the year before last, that is, in 1994, that Pakistan, which had no hope of purchasing the F16 due to US sanctions, re-started formal negotiations. ?But at this time, their requirements for the aircraft have changed from a "low-end fighter to serve as a starting point for the F16" to a "main fighter that can replace the F16." The initial plan of the Super 7 program, the J-7CP obviously cannot meet this requirement. ??If a new aircraft were to be designed according to Pakistan''s technical requirements, the amount of work and cost would be much greater. For both China and Pakistan, the associated risks will also increase exponentially. So a more in-depth cooperation model is needed. However, it is the aviation industry sector that has the final say in deepening cooperation between countries. In short, the progress of the negotiations has been stagnant until today. At this time, he suddenly said that he wanted to deepen communication How deep should it be added? Project No. 10? ?Dont even think about it, its absolutely not allowed to be seen. No matter how good Pakistan is with China behind the scenes, they are still a U.S. ally in black and white, and they cant just shake everything off. But what next? Looking at the opponent''s posture this time, it is definitely not as simple as buying another batch of J-7s. And it also involves cooperation in the field of aviation technology, which is even more sensitive and troublesome. Several projects currently being carried out by 611 Institute involve various technologies and subsystems, which ones can be sold and which ones cannot... ?Lu Yuying has no idea about these issues. In fact, not only Lu Yuying had no idea, but because China was still immature in equipment export at this time, even the people in China Aviation Technology had no idea. But no matter what, the matter has come to this, and we can only bite the bullet. After all, the military is still tightening its belt and living a hard life. The entire military industry sector is seriously short of orders and even needs to convert military products into civilian products to maintain its livelihood. Although the situation is much better than the most difficult period in the 1980s, funds in all aspects are still tight. ?For example, the J-7F fighter jet, which is currently in charge of Lu Yuying himself and is progressing quite gratifyingly, has a total project allocation of only 50 million yuan. ??If it weren''t for a very accidental opportunity that allowed him to contact the reinforcements through a paper, which greatly reduced the development cost of the aircraft, I am afraid that this deeply improved model may not have reached the end. So in this case, all the more thoughtful military industrial companies have turned their attention abroad. ??If you can get orders from foreign customers and exchange them for foreign exchange, then even if all of these funds may not belong to the unit, at least a considerable part can be left to solve some urgent problems. We can only take one step and see one step at a time ?Lu Yuying took a deep breath and walked in the direction of the delegation. An officer led by also stepped forward. This is Chief Engineer Lu Yuying of the Aviation Industry Chengdu Aircraft Design Institute. He is responsible for the development of multiple improved models of J-7 aircraft. ?Yang Huimei, who was standing beside the two men, first introduced Lu Yuying''s identity to the officer, and then turned slightly to face the latter: This is the deputy chief of staff of the Pakistan Air Force and the leader of the Pakistani delegation, Major General Shahid Latif. The two shook hands. ?Latifs opening method is very unique: Before I was grounded because of my age, the last model I flew was the J-7MP fighter designed by you. At that time, it was definitely a pretty good aircraft. Its a great honor to receive such a comment from you, Mr. Major General. ?Just like all parents like to hear others praise their children, Lu Yuying, a designer of 611 Institute, naturally also enjoys it. The official language of Pakistan is Urdu, but the vast majority of people actually use English, so communication between two people does not require an interpreter. ?Of course, Latif also understood what he meant. It was a pretty good airplane back then, but the implication is that it is somewhat behind the times now. This is also an undisputed fact. The J-7MP is essentially a J-7B that has been retrofitted with a large number of Western equipment and can use French-made R550 air-to-air missiles. It was still visible in 1984 when it was first delivered, but now in the mid-1990s, regardless of flying Neither the performance nor the on-board equipment can keep up with the times. ?So Lu Yuying followed Latif''s original plan and walked towards the final assembly workshop of Factory 132 with Latif and a large delegation of almost forty people behind him. ?There is parked there a J-7MG that has rolled off the assembly line but has not yet had time to transfer to Yanliang for test flights. Since we are not sure what the other partys fundamental purpose is, it will never go wrong to start with some more conservative projects. Of course, Lu Yuying did not forget his identity as a "salesman" and kept introducing this 611 Institute''s current flagship model to the other party on the road: Mr. Major General, since the J-7MP uses a lot of Western equipment, and the overall performance is now slightly lagging behind, we have discontinued this model and are preparing to export a new improved model, the J-7MG. The wings of the new aircraft have been changed from the large swept delta wing in the past to a double delta wing. The inner wing sweep angle is 57 and the outer wing sweep angle is 42. It also has front and rear edge maneuverable **** and is equipped with turbojet. The maneuverability of the 13F engine has been improved by at least one-third compared to the previous model..." While talking, the group of people had already arrived outside the assembly workshop and saw the J-7MG parked inside through the open door. ??Yang Huimei is a foreign trade expert. She doesnt know much about airplanes. In fact, if she hadnt gained some knowledge in the past 24 hours, she wouldnt even be able to tell the difference between the J-6 and J-7 equipped by the Pakistan Air Force. Only a strong 5 because the nose is pointed and easier to recognize. But she understands people''s hearts. When Lu Yuying first introduced the technical features of the new aircraft, Latif was still quite interested. But when he saw the real J-7MG machine parked in the workshop, although there was no obvious performance, the slightly slumped facial muscles still revealed a feeling of disappointment. ?After hinting Lu Yuying several times to end his long story quickly, Yang Huimei had no choice but to interrupt him directly: Commander Lu, I see that there are many pilots from the Pakistan Air Force in this delegation. I wonder if we can let them sit in the cabin and experience it for themselves? Lu Yuying was stunned after hearing this, and then nodded. That is certainly possible. For aircraft prepared for export, the cockpit experience is a very important and common process. ?Besides, the J-7MG has no secrets at all, and it must be sold out after all. ? Judging from the past arms sales relationship between China and Pakistan, it would be no problem even for the latters pilots to experience flying aircraft into the air. The accompanying translator quickly translated Yang Huimeis words to the members of the delegation. ?After seeing Lu Yuying nod in agreement, after a brief exchange, a middle-aged pilot who looked to be in his 40s and had a big beard walked out of the crowd. ?But people in South Asia tend to look older, so he should actually be a little younger. ?Latif glanced at him, and then introduced in a very proud, even a bit showy tone: This is Lieutenant Colonel Mohammad Sami, the best ace pilot of our Pakistan Air Force. He has flown all models from J-6 to F16, and has achieved a total of 7 air combat results. "really not bad." Lu Yuying didn''t react on the surface, and just motioned to the staff nearby to move a boarding ladder from the staff of the 132 factory nearby, but she couldn''t help but comment in her heart. Due to the special geographical location and practical conditions, the Pakistan Air Force has rich combat experience, especially air combat experience. Most of the time, it is against a weak enemy and a strong one, and it is by no means a result of abuse. ?After Latifs introduction, Sami saluted Lu Yuying crisply, and then got into the cabin with the assistance of several ground staff. ?Another person who had been following Sami also climbed up the boarding ladder and observed the situation inside the cockpit. ??It''s just that this man is wearing an army''s khaki military uniform, which is quite conspicuous among the navy blue. Just when Lu Yuying was about to step forward to introduce the specific upgrades of the cockpit of this aircraft compared to the old J-7M, Major General Latif appeared next to him and patted him on the shoulder. Mr. Latif? ?Latif glanced at the person standing on the boarding stairs, as if to confirm that the other person''s attention was not here, and then whispered: "Mr. Lu, our pilots have actually experienced your army''s J-7E fighter jet many times. Frankly speaking, it does not meet the current requirements of our army." Obviously, this means to be ready to speak openly. ??Although Lu Yuying couldn''t figure out why the other party''s attitude suddenly became clear, it was always a good thing. So what do you want specifically? he asked in a voice that only two people could hear: Not only this time, when your country was negotiating the Super 7 project before, the requirements it made were also very ambiguous. The reasons for this are very complicated, but today I can clearly disclose to you that our requirements are divided into two parts. ??Latif speaks English very fast. Fortunately, he does not have the heavy accent common in South Asia. Lu Yuying can understand everything: First, in the short term, preferably before the end of next year, we will obtain a model with better performance than the J-7P and Mirage 3. It only requires pure procurement and does not involve technology transfer. "The second is to obtain a fighter jet with comprehensive performance and development potential that is not weaker than the Mirage 2000C and preferably close to the level of the F16C within a maximum period of 5-8 years. Our Kamra Aviation Complex is required to participate in the research and development process. And at least have the ability to be responsible for aircraft final assembly and intermediate maintenance. Before the end of next year? Lu Yuying was stunned when he heard this time point, and then thought about it in his mind. ??If another amount of funds can be injected to improve some work efficiency, the J-7F project he has on hand seems to be able to meet this requirement. "If you think the performance of the J-7MG is still insufficient, we currently have a deeply improved model of the J-7 that is about to be completed. By changing the nose air intake to the chin air intake, it frees up the ability to install a 600mm diameter radar. " The design is about to be completed...can we keep up with the progress? Latif was also obviously interested. "We have adopted a, uh... special design method, so there are not many changes compared to the original model. If nothing unexpected happens, there will be no problem in completing the first flight early next year, because they are all mature subsystems, and the test flight progress will be very fast. What about the airborne weapons system? Can it be replaced with a radar made in Italy or France? "Well" ?Lu Yuying hesitated for a moment: If it is a pure purchase and does not involve joint research and development, since the initial investment is borne by us, the time and capital costs of hastily replacing new airborne equipment will be relatively high. And Mr. Major General can rest assured that the avionics equipment produced in China is also compatible with the Aspaid air-to-air missiles produced in Italy. ?This explanation is half true and half false. In terms of the improvement of the J-7, the localization rate is so tight, and the economic account is indeed one aspect. As a light fighter, the price of the J-7 cannot be set very high, and the prices of subsystems from Italy or France often reach sky-high. ?For example, the J-7MP that was previously exported to Pakistan used a lot of foreign technology. If the cost was calculated according to the official exchange rate, it would even lose money... ?? At that time, due to the urgent shortage of foreign exchange, and the J-7M was also tasked with opening up overseas markets and building a reputation, it was possible to exchange Chinese currency for U.S. dollars even at a loss. But it would be unwise to do such a thing now. ??However, there is another layer of consideration that Lu Yuying did not mention. That is, after entering the 1990s, as the relationship between China and the West turned cold, foreign trade projects involving third-country technology encountered too many non-technical obstacles. Both China Aviation Technology and the aviation industry often faced this problem. And consume a lot of energy. And it will also bring huge default risks. ?Hearing this explanation, Latif showed a somewhat troubled expression. The problem of matching the 208 radar and the Aspad medium-range bomb was not solved until the end of 1995, less than a year ago. Lets not talk about whether the reliability problem has been completely solved. Lets talk about this 208 radar. It is an early monopulse radar, and its performance is really poor. Because the pulse Doppler system is not used, although the detection range on paper is more than 30 kilometers, the interception range, detection accuracy, and anti-interference... It can only be said that the problem of presence or absence has been solved. Compared with the earlier 204 radar, it can finally achieve the ability to lock on targets and guide attacks. In short, there is a lot of room for growth. Actually, our J-7F does not have to be produced from scratch. ?Seeing the other party''s delay in giving an answer, Lu Yuying also knew that he had to come up with some substantial chips. It can also be obtained by upgrading the J-7P/MP series fighters already equipped by your army. The difference is that the diameter limit of the radar is reduced from 600mm to 520mm, and the flight performance will even be improved. "oh?" ?Latifs eyes really lit up. Im a little busy today, I wonder if I can add another chapter (End of this chapter) Chapter 119 Unfathomable needs Chapter 119: Unfathomable needs As the saying goes, there are no products that cannot be sold, only prices that cannot be sold. The performance of the US$4 million J-7 is lagging behind, while the US$2 million J-7 is durable and reliable. Although the fundamental purpose of Latif''s trip is not to seek a limited improvement of the J-7, if the more than 120 J-7P/MPs equipped by the Chinese Air Force can be upgraded at a lower price, , it can be regarded as an unexpected surprise. No matter how poor the performance of the 208 radar is, it is still better than the old model of the British-produced Sky Guardian, which is read as a fire control radar and written as a radar range finder. Lu, if the J-7F can really achieve the performance you mentioned, I am willing to lead a team to inspect it again after its first flight. ?Latifs words cheered up Lu Yuying. For a device that is self-funded and developed without starting users, the biggest worry is that it cannot find customers and the money spent in the early stage is wasted. Although he is very confident in the performance of this improved model, military sales may not always be related to the product itself. As the chief designer who insists on launching a new model despite all objections, it is unrealistic to say that there is no pressure on him. ??And now the intentions of **** at least show that his original decision was correct. ?However, before Lu Yuying could respond, Latif changed the topic and continued: But you and I both know that as a light aircraft, the improvement potential of the J-7 is ultimately limited. In the long run, we still need a more advanced multi-purpose fighter that can conduct beyond-visual-range air combat. ?Lu Yuying was silent for a moment, and then asked tentatively: Are you planning to use the Mirage 2000 against your old rival? He has already recovered from what the other party said. Such a hasty move, which also specifically emphasized the beyond-visual-range air combat capability, is obviously targeted. Not just ?Latif was about to speak, but the crowd watching around the J-7MG had gradually dispersed, and the man who had just been standing on the boarding ladder also walked down. ?So he swallowed what he said, and then walked away pretending that nothing happened. ?But it doesnt matter, Lu Yuying has already obtained a considerable amount of information from the exchange just now. It is not just an intended modification order for the J-7F. It should also be of some help to the FC1 fighter project negotiations that have been wrangling for several years. But Latifs strange behavior just now made Lu Yuying a little concerned. So he found the person in charge of Factory 132 and arranged a test flight for the pilot named Sami. Although **** people obviously have little interest in this model, the process still needs to be followed. ??And more importantly, Lu Yuying wanted to talk to Latif while observing the test flight. ?However, he did not succeed, and the latter''s attitude returned to the previous cold look. How is it, have you felt the opponents pulse? ?Yang Huimei walked up behind Lu Yuying and asked. I have some clues, but the opponents team leader behaves strangely ?Lu Yuying nodded, and then immediately shook his head: There are so many of them coming here from ****, it shouldnt be possible just to visit Factory 132. Have you arranged any other itineraries for aviation technology? Of course, the above meaning is to allow the Pakistani representatives to have an overall understanding of the current level of Chinas aviation industry. Yang Huimei said and took out a small book from her bag: So in addition to our 611 Institute and 132 Factory, we should also go to... uh, Fucheng Gas Turbine Research Institute, Hongdu 650 Institute, and the Liyang Factory in Zhucheng. Obviously she is not very familiar with these names. The schedule is so intensive? Lu Yuying was also stunned. ??He thought that at most he would only arrange for the other party to visit the province. After all, due to the third-line construction, Sichuan Province is also a place with a relatively dense aviation industry. ?Yang Huimei sighed softly, rubbed her forehead that was swollen due to fatigue and explained: It is said that the negotiations between us and Pakistan on an aircraft model have reached a technical stalemate. The other party insists on using some foreign... uh, parts? Or something similar." Although she had spent some effort to improve her aviation knowledge before this trip, it was obviously not enough. We generally call it subsystem. Lu Yuying understood what she meant. After all, although he did not participate in the negotiations on the Super 7 project, as a person from the 611 Institute, he had heard about it. In fact, although the current negotiations are still based on the Super 7 framework, they are essentially a completely different project. "In short, although we are still not sure what they want this time, the superiors still decided to demonstrate our capabilities. Judging from other business negotiations I have conducted before, if the zero... subsystem is purchased from a third party, Then we can only make a small amount of money at most, and if there are some fluctuations in the exchange rate, we may not even be able to recover the money." "All right" ??Lu Yuying understands, but is not very adaptable to this kind of cooperation where there is not much candor between them. From another perspective, of course, this is what is fascinating about international relations. Forget its too far away, but Im going to follow you to Fucheng, where the Turbojet 13FII is about to enter ground testing. Of course thats no problem. Naturally, the next morning, Lu Yuying, who followed the Pakistani delegation to Fucheng 624 Institute, met Chang Haonan again. Originally, the first phase of the turbojet 14 test had been successfully completed. According to the plan, most people from the 606 Institute, including Chang Haonan and Yao Mengna, were supposed to leave Fucheng by plane early that morning and return to Shengjing to ensure 03 and 04 No. 1 prototype was replaced with a new engine and tested for flight. But after all, the Turbojet 14 is the first model to systematically complete high-altitude simulation tests here after the SB101 high-altitude platform was built. Many of the test subjects are conducted for the first time in China, and the whole process is extremely rare (for this time The smooth sailing for China Aviation Industry has really given the comrades working together in Fucheng a lot of experience. Therefore, Liu Zhenxiang came forward on behalf of the 624 Institute, hoping that Yan Zhongcheng and Chang Haonan could stay one more day to sort out their previous information related to test subject design and process arrangement for reference for the models to be tested later. Of course, it can also help Liu Zhenxiang himself, who is preparing to formulate ground simulation testing and evaluation standards for aero-engines, reduce some of his workload. ?So when the two met, Chang Haonan and Yao Mengna were assisting several Liyang factory engineers in modifying some process details in the control room. ??He heard a noise coming from outside the door. The moment he raised his head, he happened to see Lu Yuying walking in with the **** delegation. (End of this chapter) Chapter 120 Three-year window period Chapter 120 Three-year window period Comparing to Chang Haonan who recognized Lu Yuyings identity at once, the former even took a few seconds to confirm that the young man in front of him was the Jinghang undergraduate student who had met him once. Its not that Chang Haonans handsome face is unrecognizable. In fact, according to Lu Yuying''s concept, the other party''s research field should be related to aircraft aerodynamic design and should have nothing to do with the field of aviation power. You... still know about aircraft engines? Facing this simple question, Chang Haonan was a little unsure of how to answer it for a while. Well, I know a little bit One sentence attracted strange looks from several people nearby Good guy, you know a little bit, but what level are we at? ?However, these words must not be said, so several people turned their attention to the test plan on the table again. General Master Lu, you are here this time... ??Although he used a questioning tone, Chang Haonan looked at the group of foreigners walking in and basically made a guess. As long as it is not in the process of testing, the control room of the high-altitude platform itself is not a secret. Abroad, this is a place where many reporters can come in and take photos. ?Although the country is not so open, it is still no problem to bring some potential customers to visit. After all, SB101 is the first in Asia, marking that China has the ability to completely independently develop and test aero engines, which is definitely a long-term success. He just couldn''t tell which country those people were from. To Chang Haonan, everyone in that area seemed to be dressed similarly. Come here with a delegation from the Pakistan Air Force, you know, some... arms sales matters. Lu Yuying replied. You will bring it yourself? ??If Pakistan has the intention to purchase the J-7F, then it is normal for Lu Yuying, as the chief model engineer, to receive and introduce the model at the 611 Institute, but in any case there is no reason for him to be followed by a technician to Fucheng. No, no, no, the leader is a comrade from China Aviation Technology, over there. Lu Yuying pointed to another corner of the room: "My name is Yang Huimei." ?The name Chang Haonan was very familiar. He felt that he had heard it somewhere, but he couldn''t remember it for a while. ?This is also an area where a reborn person will occasionally be troubled. When faced with something that is impressive but not familiar, he first needs to figure out in which life he has come into contact with it. ?But now is not the time to dwell on such minutiae. Is Pakistan interested in your J-7F project? In the previous life, due to many reasons such as the slow progress of this project and the immature design of the mandibular air intake, a batch of J-7MGs were finally purchased for transition in the late 1990s. Now, thanks to his presence, things may have changed. Dont say that. Lu Yuying waved his hand: Your paper, as well as the data and methods provided, will contribute no less to this project than mine. Anyway, having intentional users is a good thing. ?Chang Haonan did not continue to dwell on the details. Strictly speaking, the original purpose of the Pakistani delegations visit this time was not to purchase a batch of improved J-7s. Then...are you here to discuss cooperation on Super 7? ?If Chang Haonan remembers correctly, the negotiations on the FC1/JF17 project did not make significant progress until the end of 1997, and the final agreement was signed in 1999. It seems like that, but in fact its certainly not the case. Lu Yuying shook his head again: "Their visit seemed aimless, and they fully accepted our arrangements, so neither I nor the aviation comrades were sure of the other party''s true intention of this visit." He then spent about ten minutes. , told Chang Haonan what happened when he met the Pakistani delegation for the first time yesterday at Factory 132. ?Especially the slightly strange behavior of Major General Latif. ??Although the latter is currently helping 601 with projects, we are all part of the aviation industry, so there is nothing that cannot be said about these things. "Well" ?Chang Haonan touched his chin, lowered his head and fell into deep thought. He was very concerned about what Latif said to Lu Yuying. ??The so-called "a fighter with development potential no less than that of the Mirage 2000C and preferably close to the level of the F16C" would naturally refer to the Xiaolong if it develops normally. But there are some other details. There is no doubt that arms sales to Pakistan have always been an important part of Chinas military industry. But in fact, due to special historical reasons, Pakistans choice of military equipment, especially air force equipment, has been wavering for a long time. On the one hand, Pakistan has relied heavily on the support provided by the United States for a long time after its founding, which has led to the former forming the habit of using American system equipment. But on the other hand, as an arms supplier, the United States is not reliable. Since the second India-Pakistan War in 1965, Pakistan has often been subject to Western arms embargoes. Although the embargo is nominally aimed at both India and Pakistan, the Indian army does not rely on the West to provide equipment, so this is actually a naked deviation. ? So starting in the 1960s, Pakistan gradually introduced equipment made in China and France to offset risks. ?However, in terms of positioning, American-made equipment is still the main force, while other equipment can only be regarded as "spare tires." ?Until the end of the Cold War, Pakistan''s status plummeted due to the loss of the need to fight against the Soviet and Eastern blocs in Central Asia. In the early 1990s, the United States directly interrupted the delivery of a total of 71 F16 fighter jets in the second and third phases of the Peace Arch Plan, seized 28 that had been produced, and did not return the $685 million payment that Pakistan had already paid. ?This has made some forces in the Pakistani military that were already dissatisfied finally determined to get rid of their dependence on the United States. General Latif is obviously a member of this group. In fact, Shahid Latif is the person in charge of the Pakistani side of the future joint fighter development project between the two countries. But as a loose nation that is essentially a confederation of tribes, this idea is difficult to achieve consensus. ?Especially since the Sharif and Bhutto families can reap huge benefits from international aid, they are unlikely to be willing to do so. ? Whats even more troublesome is that Pakistans domestic intelligence agency, the Inter-Services Intelligence Agency, was entirely organized and trained by the CIA. They only obey the leadership of Islamabad in name only, but in fact they are part of the CIA intelligence network. ?Latifs strange behavior was probably also to avoid the informant from the Inter-Services Intelligence Agency in the delegation. In the original timeline, due to various reasons, Pakistan did not gradually get rid of Western control until the 2010s. However, there are still rampant separatist forces in the country that are interfering with its cooperation with Eastern powers. ?However, Chang Haonan knew that the situation was not irreversible. Two years later, in 1998, General Pervez would take the sword to Luo, drive out the two major families, and become the actual controller of Pakistan. ?As for the stance and tendencies of this legendary figure, it is enough to know that he is officially called "an old friend of the Chinese people." The three years from 1998 to the September 11 incident in 2001 was a short window of time for the development of relations between the two countries. Of course, China in the previous life failed to seize this opportunity due to national strength issues. As a result, after 2001, Pervez was pressured by the United States, which returned to the Middle East, and was forced to change the direction of its national policy. ?But now, the situation is different after all. (End of this chapter) Chapter 121 Bai Yueguang and (for last month’s monthly ticket financier flankerr Chapter 121 Bai Yueguang and... (Update 58 for last months monthly ticket financier flankerr) As a technician, Chang Haonan is not able to influence too many policy things at the moment. But its okay to go with the flow. Just exporting the J-7F is definitely not enough. After straightening out his thoughts, Chang Haonan said directly: Pakistan is now looking for us again, largely because the F16 fighter jets it purchased previously were impounded, causing problems with the update of its main air force equipment. Of course I know that. Lu Yuying replied with a normal face: So we are also negotiating on the FC1 project jointly developed by both parties. If nothing else happens, it may be produced on their side. No, thats not enough. Chang Haonan shook his head firmly: As a model jointly developed by the two countries, although the overall design of Xiaolong is almost completely completed by China, it is still inevitable to fight in all aspects from the demand end to the production end. Historically, the Xiaolong was not delivered to Pakistan for service until 2007. The gap of more than ten years was unacceptable for a country with heavy air defense pressure. ??But this is not a technical issue, so Chang Haonan can''t do much. Xiaowell, the FC1 may theoretically meet Pakistans needs, but in the final analysis it is still a light fighter of the same level as the Mirage 2000, and cannot compete with the F16 from a psychological and value perspective. "In addition, after all, they have owned F16 fighter jets, so no matter what kind of demand they put forward on the surface, they actually still want a product that can benchmark the F16 in various aspects, such as range and bomb load. There are also beyond-visual-range combat capabilities. Hearing this, Lu Yuying''s expression suddenly changed slightly, and then asked in a half-joking tone: Are you planning to steal business from us? A question silenced the atmosphere between the two for about ten seconds. I dont blame him for thinking this way. After all, whether it is the J-7F or the FC1, it is expected to be a light fighter with a medium-sized engine and a maximum take-off weight of about 10 tons. Compared with the F16, there are all-round gaps. ?So, does China currently have an export aircraft with stronger power, longer range, larger bomb load, and the ability to perform beyond visual range combat? In fact, there is. ??It is to replace the J-8B with Russian-made avionics and the J-8IIM that can launch R27 air-to-air missiles... Chang Haonan has been working for the 601 Institute in recent months. ?So in Lu Yuyings view, doesnt this connect? Nothats definitely not my intention. ?Chang Haonan put one hand on his forehead and shook his head. ?The conscience of heaven and earth, he is just summarizing what has not happened yet. In 1999, Pakistan lost the Kargil conflict around the Line of Actual Control in the disputed area. Its air force was suppressed almost entirely, and its ground forces also suffered heavy losses under attacks from precision-guided munitions. After entering the 21st century, the Indian army began to equip the heavy multi-purpose fighter Su-30MKI. ??If there is no intervention, then in 2001, in order to realize the strategy of returning to the Middle East, the United States will upgrade a batch of previously seized F16s and return them to the Pakistan Air Force, which is already imminent. Subsequently in 2006, the latter will continue to purchase a batch of 18 F16C/D fighters and some second-hand F16s from Middle Eastern countries, forming a total of about 80 aircraft. For a medium-sized country, the required air force equipment is ultimately limited. The F16 happened to occupy this ecological niche at the critical moment in the early 21st century and became a key bargaining chip that influenced the attitude of the Pakistani military, especially the air force. ? It was not until 2022 that the J-10CP, which could replace the F16, finally entered service with the Pakistan Air Force. But this time is a bit too late for both China and Pakistan. "After all, the J-8 is also a second-generation aircraft, and it specializes in high-altitude and high-speed interception missions. It will not be more attractive to Pakistan than the J-7F, and it cannot replace the F16." Chang Haonan carefully organized his words while explaining. : Just...for example, for them, F16 is like Bai Yueguang, whom they had a crush on for a long time but failed to pursue when they were young. Its a feeling they cant let go of after many years. So its useless to reason at this time. The best way is to provide an alternative to F16 and let them transfer their emotions to this new equipment. From this perspective, let alone the J-7 and J-8, even if the Russians sell them the Su-27, it will be too different from the characteristics of the F16. After hearing these words, Lu Yuying''s eyes changed. This must be someone with a story ?Yao Mengna, who was standing nearby and was just eating melon, turned her head and looked at Chang Haonan with sharp pupils. This person talks about these things with great clarity, but why does he usually behave like a piece of wood? ?However, although the metaphor is strange, Chang Haonans meaning is not difficult to understand. What are the typical characteristics of F16? Single-engine, single-seat, medium-sized, belly-intake, multi-purpose ?Isnt it a coincidence? 611 Institute actually has one, or there will be a model that is almost compatible with them soon. You mean... ?Lu Yuying made a "ten" sign in front of Chang Haonan with the index fingers of both hands. The latter nodded. The overall performance of the J-10 is definitely not weaker than that of the F16C/D. Even though it is the main equipment of the Air Force, it is impossible to sell the same model immediately after entering service, but even if it is slightly downgraded in avionics, it can definitely crush the early F16A/B currently equipped by the Pakistan Air Force. You must know that the AN/APG60 radar equipped by the latter does not have continuous wave irradiation capabilities and cannot even use radar-guided air-to-air missiles. It can only use AIM9 for within-line-of-sight combat. At worst, it will come with a mid-term repair and upgrade service later. ? Judging from the current trend, Chang Haonan is very confident that he can raise China''s scientific and technological strength, especially its aviation technical strength, to a higher level in a few years. At that time, there will be no need to be secretive about the technical status of the first version of the J-10. ?Thinking of this, Chang Haonan continued to add: "This model is the absolute main force for Pakistan. The number of equipment cannot be large. There is no need to worry about affecting future FC1 sales. Moreover, it is only arms sales and does not involve technology transfer, but it can greatly affect Pakistan''s decision-making balance. Its a sure-fire deal. ?Lu Yuying was convinced by Chang Haonan without much hesitation. ?In addition to the fact that the latter idea does make sense, the profits from exporting third-generation medium-sized fighter jets are far beyond those of the J-7 or FC1. ?Of course, the decision-making power on this matter does not lie with the two of them, nor even with China Aviation Industry Group. But as a senior designer of the 611 Institute, Lu Yuying can definitely make some preparations in advance. ?For example, during the research and development process, a version using the 1471G radar can be developed simultaneously, or a large number of legal ammunition in the Pakistan Air Force''s inventory can be adapted and optimized. After all, its all about people. (End of this chapter) Chapter 122 Are you free tonight? Chapter 122 Are you free tonight? The meeting with the foreign delegation can only be regarded as an episode. For Chang Haonan, the most important thing right now is to continue to follow up on the 83rd Project. From the previous aero-engine stability evaluation standards, it can be seen that with his open-minded attitude and future perspective, the safest route is to gradually increase his influence through the development of technology. ??If it were not for the excellent performance of the turbojet 14 after improvement, it would not be so easy for the Science and Technology Commission to make up its mind on establishing an independent aviation industry system. In the following days, the August 3rd Project Team maintained three-front operations at the same time. ?Some people stayed in Fucheng to continue the second-stage full-life test and other test subjects. By the way, they assisted Liu Zhenxiang in supplementing and revising the aviation engine ground simulation test standards. Another group of people are in Shengjing, responsible for adapting the two turbojet 14 prototypes newly produced by the 410 Factory to the No. 03 prototype of the J-8-3. Shortly after the surge accident, the No. 03 prototype Transition back to Shengjing, ready to replace the new power before continuing the test flight. The workload of this task is much greater than expected. The weight of the two new engines is more than 200 kilograms lighter than before. In order to balance the weight, the 601 Institute had to make minor modifications to the fuel tank distribution of several prototype aircraft. Therefore, until Chang Haonan and Yan Chengzhong returned to Shengjing from Fucheng, the flight engine matching work of the No. 03 prototype was not completely completed. At the same time, on the day that the 624 Institute completed the first phase of ground simulation testing, another turbojet 14 prototype that had already been sent to Yan Liang was hung on the No. 086 aerial test platform of the Flight Test Institute, and the first test was carried out. Aerial platform testing. Compared with the high-altitude platform, this aerial platform modified from Figure 16 can simulate some more realistic working conditions and is an essential process in the high-altitude test of aeroengines. Although the 606 Institute is already full of confidence in the improved turbojet 14, it still needs to wait until the test flight of other aircraft is completed before the assembly test can be officially started on the No. 03 prototype. ?So before that, Chang Haonan''s work became a lot easier. He only had to take time to go to the assembly workshop and follow up on the completion of the two full-state prototypes 04 and 05. ?This is exactly what he wants. Even though he had already visited Factory 112 once when the No. 04 prototype made its second first flight, he had never taken a closer look inside the workshop like he did when he went to Factory 410. After returning to Institute 601, Chang Haonan decided to rest for a night. Although he lived in a guest house for two people in Fucheng, the conditions were pretty good in this era, but unfortunately, he met a roommate who snored heavily, and the work was very intensive, so he had to work hard during this period. Suffering from mild sleep deprivation. Now that I have finally returned to my single dormitory, I have to make up for my sleep no matter what. ?However, Yao Mengna, who was traveling with her, was in high spirits. Junior brother, are you free tonight? Before they parted ways at the stairs, she called out to Chang Haonan who was about to take out the key and open the door. "night" ?Chang Haonan hesitated for a moment. There is no plan for the itinerary, but I dont really want to go out. Although he worked very hard, according to the custom of later generations, he was essentially a homebody. Although it cannot be called social fear by any means, if possible, people generally prefer to stay at home. ?However, this moment of hesitation changed its meaning in Yao Mengnas eyes ?Her original intention was to ask Chang Haonan if he wanted to go out for a meal together. When she was in Fucheng, she lived with a married female engineer, who introduced her to many places near 601 that were suitable for two people to eat. But just after she blurted out that question, Yao Mengna almost immediately realized that she had said something sarcastic. What does "Are you free in the evening" mean? This sentence can obviously have many meanings depending on different understandings. As a girl with both business intelligence and always online, Yao Mengna always pays attention to her speech and behavior. ??It''s just that when facing Chang Haonan, his originally bright mind often slows down a beat. This symptom has probably become more and more obvious since the incident with the senior student... Its too disgraceful Yao Mengna was upset. How can you say such outrageous things? ? And now it is impossible for her to explain it, as that would only make it darker and darker. ??I can only pray that my junior brother, as a qualified piece of wood, will not think too deeply... The best outcome is for the other party to tell you directly what she wants to do. This explanation makes it less obvious that there is no three hundred taels of silver here. However, she was afraid of what would happen. She saw Chang Haonan who was silent, lowered his head in contemplation, and looked like he was in a dilemma. In fact, the question just now would not cause any ambiguity at all under normal circumstances. Unless someone has some evil thoughts. ?So the latter actually didnt think too much, he was just worrying about the time he planned to use to catch up on sleep. But Yao Mengna next to her was already feeling guilty, and when she saw this scene, she felt numb all over. Then she heard her junior brothers answer: Ive been too busy during this period, so Im going to take a rest alone at night. ?Mainly because of the fatigue after the sudden relaxation, Chang Haonan was already a little over the top, so much so that he opened the door and walked into his dormitory without even thinking of asking the other party''s purpose. "not me" ?Yao Mengna, who stayed in the corridor, looked at the door that was slammed shut in front of her, her mind already turning into a ball of mush. A person rests alone...why does he emphasize a person? Has he ever wanted to go somewhere else? He doesnt think Im a casual woman And he seemed to have rejected me? "This is different from the plot my best friend told me before..." ?She didn''t even know when she opened the door. Anyway, by the time she realized it, she was already lying on the bed. ?The last time I felt so embarrassed was the last time. "well" ?Yao Mengna wished she could have slapped herself five minutes ago. She looked at the palm that had been raised in the air, and finally slapped it **** a stuffed bear beside the pillow. On the other side, Chang Haonan quickly changed into pajamas after returning to the dormitory and threw his entire body on the bed. I seemed to have forgotten to ask my senior sister what she wanted to do with me at night In a daze, he also vaguely felt that something was wrong. Forget it...no matter, I have to go to Factory 112 tomorrow morning to check on the final assembly situation. Then Ill ask my senior sister to go with me. She should be familiar with it..." (End of this chapter) Chapter 123 The J-11 settled in advance Chapter 123 The J-11 settled in advance Early the next morning, Chang Haonan, who had regained his energy, met Yao Mengna again in the cafeteria. Its just that when he was about to use his chopsticks, the other person had already eaten half of the meal. Senior sister, I... ?However, before he could say the invitation to go to Factory 112 together, Yao Mengna interrupted him quickly without even raising her head: Um...junior brother, I have something else to do, please take your time. ?Then he took the dinner plate and ran away decisively. Sometimes, although escaping is shameful, it is useful. ?For example, Chang Haonan didn''t see Yao Mengna''s already red face that was about to bubble. "Well" He looked at the plate in front of him and thought about it. In fact, only what happened yesterday was unusual. Just because I didnt ask her what she wanted to do? ?Chang Haonan took a bite of the fried dough sticks and was a little confused. Senior sister doesnt seem to be such a narrow-minded person In this era when there is no mobile network and most people do not even have mobile phones, it is still difficult to accurately contact a person who is neither at home nor at a fixed place of work. So in the end, Chang Haonan did not do any useless work, but directly contacted He Ming, the deputy chief engineer in charge of the final assembly of the 83rd Project at Factory 112. ??Although according to the permissions indicated on the former work permit, you can basically walk sideways in several factories in Shengjing, but for a unit of the size of Factory 112, if there is no one to carry it, you are likely to get lost inside... Chang Haonan took a car directly from the airport to the test runway last time, so he was still relatively unfamiliar with the overall situation of the factory area. But even so, he could see that Factory 112 was making some big move. ?The factory area is almost full of various transportation vehicles, and several large workshops look like they have been renovated. ?Furthermore, the security level within the entire factory has also improved to a higher level than before. Although it is not as simple as three steps to one post and five steps to one post, Chang Haonans work permit was checked three times just in the time it took him to walk from the door to the administrative office building of the factory. Comrade Xiao Chang, long time no see. ?He Ming seems to have been waiting at the door of the building for some time: "The commotion you have created in Fucheng is not small. Even those of us engaged in complete aircraft production have received warnings from above, saying that we must build an independent aviation industry system based on our own realities. " I havent heard such an encouraging statement in more than ten years. ??Although He Ming does not look too old due to his thick hair, he has actually worked at Factory 112 for more than 30 years, and even participated in the domestic manufacturing of the J-6A aircraft. I think the Science and Technology Commission should have had such a plan for a long time. The things Academician Liu and the others came up with dont look like they were unprepared. Chang Haonan replied: The turbojet 14 successfully completed the test according to our own standards, which gives the superiors enough confidence to move forward with this matter. Even though Director Ding quoted exactly what he said on the phone during the meeting, But if you think about it carefully, Chang Haonan does not feel that he can have an impact on this fundamental policy direction with just one word. Because this kind of thing is not something that can only be decided upon by the Science and Technology and Industry Committee. Confidence is good... What we have been lacking the most in these years is confidence. He Ming raised his head, his tone full of emotion: You are still young and have not experienced many things. Sometimes, those who stand in our way are our own people. When you encounter a slight problem, you should resort to the theory that it is better to buy than to build, and it is better to rent than to buy. At this time, it is very important to have this booster given by you. Chang Haonan looked at He Ming next to him, whose mood was fluctuating, and felt that it was time to change the topic: "By the way, let''s not talk about the turbojet 14. When I first came here, I saw something big happening in the factory?" "You don''t know?" He Ming was stunned when he heard this question, and then thought of something: Oh yes, you have been in Fucheng during this period, so you may not have heard of it. At the beginning of this month, we formally signed an agreement with Russia to transfer the Su-27 production license, so a large amount of technical data and production equipment will be shipped here. Chang Haonan was also surprised when he heard this answer: Su 27...have the talks been concluded? ?If he remembered correctly, the agreement was originally two months later and was not officially signed until December 1996. Yes, Sukhoi suddenly made a huge concession, so the negotiation process went a lot smoother. He Ming said this with a smile in his tone: And speaking of it, this matter still has something to do with you. "How come... I don''t know this myself?" Chang Haonan felt as if he was suddenly out of touch with the world. When the No. 04 prototype flew for the first time, Commander Yang specially asked several Sukhoi technical consultants from Factory 112 to watch the whole process. Then within a few days, I heard that the agreement there was successfully signed. " At the end of the day, contract negotiations are useless if you dont have any cards in your hand. The improved J-8-3, even if it is not a king bomb, is at least four 2-level fighters. Whats more, it was created out of nothing when the card game was nearing the end. The effect is naturally immediate. Unfortunately, I came a little late and only got two months... ?Chang Haonan nodded, but he still felt a little regretful. ??If Project No. 10 is the beginning of Chinas realization of freedom of fighter jet design, then Project No. 11 is the starting point of Chinas realization of freedom of fighter jet manufacturing. A heavy fighter with a maximum takeoff weight of 33 tons. Even if a full set of design information and raw materials are prepared, it is still a huge challenge to actually build the aircraft. There are not many shortcuts in manufacturing, and time and investment are both indispensable, so if we only start two months in advance, the actual impact may be... etc At this time, Chang Haonan suddenly remembered that He Ming seemed to have said just now that Russia had also made concessions on the content of the agreement, so he asked again: As for the content of the contract... As Chang Haonans status in Institute 601 has risen, he naturally has the right to know about these things. ??If he had asked this question when he first arrived in Shengjing, he would probably only get a blank look. "According to the contract, Factory 112 will produce a total of 118 single-seat Su-27SK and two-seat Su-27UBK in the next 10 years. The first batch of 14 airframes will all be provided by Russia. Subsequently, we will gradually transition to completely manufacturing them ourselves. "The engines, radars and electronic equipment required by the aircraft are subject to separate subsystem procurement contracts. Except for the first two batches of 28 aircraft, Russia does not restrict us from replacing the airborne equipment of the other 90 aircraft and can provide necessary assistance. Of course the cost is extra. In addition, the Su-27 and its derivatives we produce cannot be exported to third countries. The specific contract content is of course much more complicated, so He Ming only selected the most critical parts. ??But this was enough to make Chang Haonan almost drop his jaw. Compared with the rather harsh conditions on the original timeline, the content of this agreement can now be called a philanthropist. ? It is no longer important that there is an additional Su-27UBK production line and the reduction in the number of airframes that must be provided by Russia. The latter item without restrictions on the replacement of airborne equipment on 90 of the aircraft is the full operating space. This means that Project 11 can even embark on the path of "production and improvement" from the beginning, without having to delay it for nearly 10 years like in the previous life. (End of this chapter) Chapter 124 The best Su 27 is in China (for monthly ticket financier flan Chapter 124 The best Su 27 is in China (update 58 for monthly ticket financier flankerr) Chang Haonan raised his hand and stroked his hair, which was already a bit long because he hadn''t cut it for more than two months, and sighed: I fuck ??Although Chang Haonans mother, Ms. Zhou Li, is a Chinese teacher, his Chinese scores have always been at a relatively poor level, and the system does not seem to have the ability to increase literary literacy. In short, he could not think of any more accurate words to express his feelings at this time. ?But I am uneducated, so I can get around the world with just one word. ?After a long time, Chang Haonan finally asked again: "Such a good condition... Old Maozi won''t do anything else, right?" Its not that he is narrow-minded, its actually the content of the agreement mentioned by He Ming that made him feel unreal. ? Just like if someone introduces an investment method that can earn 50% annualized income without losing the principal, then anyone in their right mind would have to think about whether they need to install a national anti-fraud APP... ?Before Chang Haonan was reborn, some colleagues were actually deceived by this trick. The money was never recovered in the end. It is true that Russia does not have much dark history in its cooperation with China. But if the cooperative Party B is switched to India, the situation seems to be different... I still have vivid memories of the fact that I bought an aircraft carrier for 1 yuan and then spent nearly 2 billion U.S. dollars on modifications. This question made He Ming think seriously for a while, but in the end he shook his head: "Probably not. On the one hand, the agreed payment method is based on the project node. The smoother our progress, the faster they can get the money." "On the other hand... the comrade in charge of the negotiations said that even with the current conditions, the other party was more anxious than us when the agreement was finally signed, so it was not a big problem." Of course, the core is still our 112 Factory. Although there is a technical gap with Komsomolsk City, it is not a blind eye. Even if they are really playing some tricks, at least they can see it. "makes sense." Hearing He Mings answer, Chang Haonan also chuckled: When the production of the first 28 aircraft is completed, there will not be many things that require Russian guidance. Just to open up the production line, we shouldnt need 28 aircraft. According to my experience, 16 to 20 aircraft are enough. He Ming judged as he led Chang Haonan down the steps: "The focus is still on the 90 aircraft at the back. The foundation of the Su-27 aircraft is very good, but the airborne equipment is a bit behind. If it can be improved on the basis of the original model, it can further exert its combat effectiveness, but this requires you to work on the overall design. people are worried. Although Factory 112s business is aircraft manufacturing, and He Ming is the engineer in charge of final assembly, as an aviation veteran from the 1960s, he has some understanding of the entire industry. After all, Chinas first aircraft design office was established in Factory 112. His ideas coincided with Chang Haonan''s. As a large country with a combined land and ocean area of ??more than 12 million square kilometers, China undoubtedly needs a heavy-duty air superiority fighter with excellent range and maneuverability. ??If the Chinese Air Force wants to complete the gorgeous transformation from a homeland defense type to a both offensive and defensive type, it also needs a multi-purpose air platform with sufficient power and bomb load. Su 27 can undoubtedly satisfy both requirements. Its just that parts other than the platform itself can be replaced with Chinas own stuff. ? Among other things, the nearly one-ton N001 radar must be replaced first, and the Soviet watch shop must also be converted into a glass cockpit. In fact, even Lao Maozi himself cant stand these two artifacts on the Su-27. If the disintegration of the alliance had not led to the cessation of research and development, the Su-27SM, which uses flat-panel slot antennas and digital telex, should have almost entered service. ?Thinking of this, Chang Haonan felt that he needed to arrange the plans after the August 3rd Project. Project No. 10 and Project 11 actually left a lot of regrets in the previous life.?????So if possible, his idea is "I want them all". ?But this requires him to be a master of time management, otherwise if he cannot take care of both the left and right, the effect will be even worse. I wonder how our factory sets the timetable for opening up the four-stage production line? Aircraft manufacturing is a job that is no less complex than aircraft design. The transition from fully imported to fully domestically produced aircraft, or any complex mechanical product, actually involves three to four different stages. The first step is to assemble the aircraft with large parts imported from the original factory and open up the "complete aircraft assembly line". ?Assembling aircraft may seem low-tech, but in fact there are not many countries that can take this step. The second one is the assembly of large parts from imported medium-sized parts, and the assembly of imported low-piece parts into assemblies. Depending on the complexity of the aircraft, this may be one or two steps. For most countries, reaching this point is basically the end. The so-called "self-developed" aircraft in many countries can only go so far. The last step is to produce low-parts parts from rough materials, open up the parts production line, and then produce the entire aircraft step by step to achieve complete localization of the aircraft. This He Ming thought for a while: The original agreement stipulated that the final assembly of 2-4 aircraft should be completed by the end of next year, and the entire production line of the airframe section should be completed by the end of 1999. But thanks to your contribution, now there is another node, which is to complete the replacement of the entire aircraft production with domestic standards before the end of 2001, and completely turn the Su-27 into something that meets the standards of the Chinese aviation industry! Of course, in addition to the aircraft itself, another task is the localization of ground support equipment. Otherwise, with the third-generation aircraft alone, the corresponding service capabilities cannot keep up, and there is no way to form combat effectiveness. Well Chang Haonan thought about it in his mind: The progress requirements are not tight, so it should still be enough Whats too late? ?He Ming''s tone was a little curious. Of course its aircraft improvements. Chang Haonan shrugged: After the final assembly line is opened, the digestion and absorption of parts production can be carried out at the same time as technological improvements. As for airborne equipment, especially electronic equipment, it can be independently researched. Its just that if you do this, your factory will be under greater pressure, especially in terms of cooperation with Russian technical personnel. He Ming, who was next to him, turned his head and glanced at him, and answered after a few seconds: If I hadnt known what you had been doing in the past three months, I would have thought the person who came up with this idea was crazy "But...improving while producing is indeed a way. I will mention this idea to the factory after I go back and try my best to cooperate with your work. As for the Russian technicians...there is always a way, and the improvement work must be led by me. Im afraid that by the time these 118 aircraft are built to the end, even their own people wont be able to recognize them Hearing these words, Chang Haonan couldn''t help but think of the situation before his rebirth, and it was really in line with He Ming''s expectations. I think it should be like this From now on, the best Su-27 will definitely be born in China. It should be Chapter 6 of the monthly ticket financiers update (End of this chapter) Chapter 125 If you want to engage in military industry, you can’t just engage in military industry Chapter 125 If you want to engage in military industry, you cant just engage in military industry ?After just chatting with He Ming about the localization of the Su-27, now looking at the final assembly of the Project 83 prototype, Chang Haonan inevitably felt a bit boring. Sorry, J-8-3, I already like J-11 now... Heh, man. Of course, the work that needs to be done still needs to be done. Whats more, this can also lay a solid foundation for his next work. With the two long-standing problems of wing design and aviation power that have plagued the 83rd Project being solved, there are not many opportunities for Chang Haonan to continue to shine in this project. After a series of test flights, the technology should be finalized soon, followed by batch 00 production and test equipment, and then production finalization... In short, it is mainly just some step-by-step work. ?If nothing else happens, starting next year, he will gradually shift his work focus to two third-generation aircraft models. The current level of China''s aviation manufacturing industry is that it is not a big problem to cope with the second-generation combination of J-8 and turbojet 14. However, there is still a long way to go to completely solve the production problems of third-generation fighter jets and even third-generation aviation power. way to go. Therefore, Chang Haonan will not only continue to work with several design institutes in the future, but also inevitably deal with several corresponding manufacturing plants. Its also a good thing to get familiar with things in advance. In the huge assembly shop, there are two J-8Bs that have not yet been delivered to the Air Force, and three J-8-3 prototypes that are in different stages of equipment. ? No. 03 has completed the modification, No. 04 is waiting for the new engine to arrive, and No. 05 is about 50% complete in its final assembly. "Currently, the final assembly of several prototypes of the 83 Project is still based on the manual assembly mode based on frame positioning, but the parts production process has begun to be connected with the digital design team of the 601 Institute, which has reduced some of the time from drawing to production. " ??He Ming led Chang Haonan to a platform on the second floor while introducing: "In the past few months, Dr. Yao, who came with you, and Engineer Lin from the 601 Institute have been coordinating the digital design and final assembly process with our factory. When we enter the mass production stage, we should introduce New technologies such as automatic docking and digital measurement have improved production efficiency. "However, the main problem now is production. The orders given to us are too few. On average, we cannot produce one new aircraft per month. Even if we use manual assembly, more than half of the production capacity will be idle. It does not reflect the potential of digital final assembly at all. Advantage comes. The workshop was empty, and you could hear some echoes when you spoke, as if to confirm He Ming''s complaints about the lack of orders. In fact, the lack of orders affects not only the efficiency of the factory, but also the quality of production. Speaking of this, He Ming''s eyes also darkened: Especially if we are about to switch to a new production method. If we dont have enough production volume to get familiar with it, Im worried that not only will it not achieve good results, but it will also trigger some resistance. In the real world, improving manufacturing technology is not like in the game, where you will receive a buff directly after you light up the technology. Especially for highly complex industries such as aerospace, the process of upgrading from handicraft to industry is very tortuous. ?In the transitional stage of transformation, it is very likely that not only will the scale advantage of industrialization not be brought into play, but the ability to craft products in the handicraft era will also be lost, resulting in a decline in production capacity and a decline in product quality. ?At this time, you need to withstand the pressure, quickly accumulate experience on the basis of optimizing the management model, and get through the pain period in the shortest possible time. There is obviously a huge difference in the accumulation of experience between building 10 aircraft in a year and building 10 aircraft in a month. How else can we say that production relations should correspond to the development of productive forces. "well" Chang Haonan also sighed helplessly: "Take your time, this matter cannot be solved by you and me in a short time, and compared with other old state-owned enterprises, the situation of Factory 112 is not bad. Aircraft manufacturing is a special industry after all, and even in the most difficult times, orders have never been cut off. ??Furthermore, although China''s aircraft manufacturing capabilities are lagging behind those of developed countries, compared with other industries, they are still low in dimensionality reduction. The products produced by the military-to-civilian conversion, such as aviation brand washing machines and Shenyang Fei brand buses, are also selling well. With the efforts of both parties, the basic operation of the entire factory was barely maintained, at least there was no large-scale layoffs. But thats about it. As for how moist it is, it doesnt exist. Thats what I say, but... He Ming raised his head slightly and looked at the mottled roof of the workshop and the red flag of the "Youth Commando" hanging on the wall next to it: "Back then, many workers were assigned to the Songling Machinery Factory to produce refrigerators, washing machines, and motorcycles. At that time, I told them that sooner or later they would be called back to continue building aircraft. But now more than ten years have passed... " He did not continue. But it is obvious that a considerable number of those old workers may not be able to return to Factory 112 until they retire. Chang Haonan next to him could only remain silent. ? In his last life, he officially entered the military industry in 2003. Although he was still at a low ebb, at least he had passed through the real darkest moment. He could understand He Ming''s feelings, but for something that he had never personally experienced in his entire life, it was still a little short of empathy. More of a little emotion. The military industry is, after all, an industry with an extremely limited market and requires massive blood transfusions to survive. Even the United States, as the world''s largest arms dealer, will only export 50 to 60 billion U.S. dollars in arms exports per year by the 2020s, with the bulk of it still being purchased by its own military. Traditionally speaking, from the industrial revolution to the early and middle periods of the Cold War, the military industry was undoubtedly in the leading position in the development of science and technology. However, with the continuous development and advancement of science and technology, the complexity of engineering technology is also increasing, and the funds, manpower and organizational capabilities required to achieve technological breakthroughs in a field have skyrocketed. ?However, annual military investment is limited after all, and it is difficult to sustain such a huge comprehensive investment based on the scale of the military industry alone. ?Hence, the cornerstone of the entire science and technology field has gradually become more and more civilian-oriented, especially represented by emerging industries such as aviation, semiconductors, and information technology. ?For example, in later generations, the United States lost almost all of its civilian shipbuilding industry. Even though it still maintained huge investments every year, its ability and level of building warships still experienced a collapse-like decline. Chang Haonan suddenly remembered the business of designing axial flow fans that Wu Yifan had contacted him before. ?Although the matter is small, it is a good direction. The path of military-civilian industry integration will eventually be pursued in the future. ? Its just that it is no longer about diverting the production capacity of military factories to produce civilian products to compete with others for business, but about promoting the mutual integration of technologies in the military and civilian fields. ??If you want to engage in military industry, you can''t just engage in military industry. Thanks to book friend [flankerr] for the 30,000 starting coin reward! (End of this chapter) Chapter 126 next step Chapter 126 Next Plan Chang Haonan did not stay in Factory 112 for too long. After all, there were only 5 aircraft parked in the entire assembly workshop, and the parts production line was not in operation. There was not much that could be seen. Back at No. 601, he happened to meet Yang Fenghao while having dinner. Did you go to Factory 112 today? The latter glanced at the work badge hanging around Chang Haonan''s neck and roughly guessed his schedule today. This is generally not needed inside a 601 institute. Yes, lets take a look at the final assembly of the three prototypes. Chang Haonan put down the spoon in his hand and nodded. Just looked at the three prototypes? Yang Fenghao took a sip of soup and showed a smiling expression: Didnt you see anything else? UhFactory 112 is receiving materials and equipment related to Project 11, so I justdropped in to take a look. After Chang Haonan said this, he inexplicably remembered what He Ming had said before, that two Sukhoi engineers were specially allowed to "peep" during the test flight of the No. 04 prototype, which finally prompted Russia to make huge concessions. . How come it feels...a bit similar? In an instant, he realized. This has been arranged for me! And it is clearly arranged. After returning from Fucheng, I immediately received an itinerary to Factory 112. After arriving at Factory 112, I "happened" to see preparations for the localization of Su-27 being in full swing, including what He Ming had talked about with himself about the J-11. Outlook for subsequent improvements Is this also part of your plan, Mr. Yang? ?So according to the routine, the following should be... Xiao Chang. ?Yang Fenghata really spoke just right: "In the past few months, you have made outstanding contributions to the August 3rd Project. It can be said that without you, the progress of this project would have been delayed for a long time. After the design and finalization work is completed, I am ready to In the name of this, apply for a commendation or award for yourself. Chang Haonan was also surprised when he heard this. ?This is not exactly the same as the advanced technological achievements reported to him by 603. Honors are a kind of recognition of achievements. But its not just recognition of results. The relationship is quite subtle, but in short it will be quite helpful for his future development. ?Especially when the other party said that the application must be made in the name of the institute, it must be at least at the level of the Aviation Industry Corporation of China or the Commission of Science, Technology and Industry for National Defense. As a person who spent twenty years in the aviation industry system as a screw in his previous life, Chang Haonan is not very good at dealing with people. But he is not stupid. ?It doesnt matter if you dont speak well, the key is not to make the wrong direction If you dare to say "I don''t think I am worthy of such an honor yet," then your superiors will dare to actually give the award to someone else. It should be your own thing, there is nothing to be embarrassed about. At this time, what is needed is not humility, but a statement. Thank you, Mr. Yang, for your recognition of my work. I will definitely... Before Chang Haonan could finish the long paragraph he had organized in his mind, Yang Fenghao waved his hand to stop him from continuing: Okay, okay, your style of speech is similar to the way I used it when I first started working. The former shut up decisively. As long as the meaning is in place. "You also know the importance of the August 3rd Project. Commendation is indispensable to you no matter what, but the weight of honor... To be honest, sometimes it depends on luck." Speaking of this, Yang Fenghao suddenly changed the subject: I wonder, Xiao Chang, what are your plans after the project at 601 Institute is over? Obviously, here comes the real point. The previous set of combo punches were all paving the way for this problem. First, I asked you to see the third-generation heavy fighter that is about to be domestically produced. Then I clearly arranged the honor for you. Finally, I asked you what your next step is. I just have the words "I want to win you over" written on my face. The method is old-fashioned, but it works. Very useful, at least in general situations. Whats the next step ?Chang Haonan pondered for a while. He was not worrying about whether his choice would affect his honor level, but he was really thinking about it. For the Chinese Air Force, Project 83 can only solve the current urgent needs. If we want to face the air defense pressure in the new century, we still have to focus on the third-generation fighter jets. "So, I will definitely participate in Project 11. During the day, He Gong told me the content of the Russian agreement, which is very beneficial to us, especially since it can replace the airborne equipment of 90 of the aircraft, and the operating space is very large. big." Hearing this, Yang Fenghao''s brows finally relaxed. At the beginning, he agreed to let Chang Haonan and Yao Mengna join the August 3rd Project, more or less for the sake of Du Yishan and Liang Zhuoping, and his expectation for the two people was just to "help a little bit." ?But soon, he realized that his psychological expectations were terribly wrong. First discovered the aileron reversal problem, and then redesigned a set of leading edge slats to improve the aircraft''s low-speed performance. Finally, it even solved the compressor design flaw that had plagued the Turbojet 14 for several years... More importantly, Chang Haonan is not only extremely capable in his own work, he can even drive the efficiency of the entire August 3rd Project team. This is very rare for a young man in his early twenties. Simply a treasure boy. Therefore, when Yang Fenghao learned that the ground simulation test of the Turbojet 14 went well, and even asked the Science and Technology Commission to develop an independent aviation industry standard, he decided to let Chang Haonan do it at all costs. Stay after the engineering design is finalized. As for Yao Mengna Even with a piece of wood, it can be seen that she has some thoughts about Chang Haonan that go beyond friendship. So as long as we can keep the latter. However, just when Yang Fenghao felt that he was sure of victory, Chang Haonan continued: However, after having the experience of participating in the August 3rd Project during this period, I hope that I can jump out of specific projects and solve some methodological problems that are in short supply in our aviation field. Look beyond specific projects? ??Yang Fenghata felt that his heart might not be able to bear such ups and downs. Yes, I want to try to solve some universal problems related to third-generation fighter jets, such as flight-propulsion integrated control in the field of flight-engine matching, flight control digital design, surge monitoring, etc. ?Chang Haonan frankly expressed his thoughts: Of course, these technologies will eventually be implemented on specific models, so I have to trouble you to leave a place for me in Project 11. Huh Yang Fenghao breathed a long sigh of relief. Of course, although I am not in charge of Project 11, I can still make a decision on this request. (End of this chapter) Chapter 127 Why did I suddenly have more papers published? (two together Chapter 127 Why do I suddenly have more papers published? (2-in-1) Because of the tug just now, when Chang Haonan said goodbye to Yang Fenghao and left the canteen, he could already see a crescent moon hanging in the sky. On the way back to the dormitory, he suddenly thought of Yao Mengna who was acting a little strange this morning. By the way, what did she want to say last night Just when Chang Haonan was hesitating to ask the other party specifically, another familiar voice came from the side. Permanent worker! This is the familiar plot again. Even the person who walked out of the security booth was the same young man from last time. Chang Gong, your letter. Is it mine again? ?Chang Haonan took the envelope and took a look at it through the dim street light at the door. Its still the same envelope as the last time. ??Although I cant see the words clearly, its obviously from Xu Yang. She probably has some new ideas about differential evolution or Kalman filtering algorithms. "sorry to bother you." ?Chang Haonan nodded to the security comrade to express his gratitude, and then went upstairs back to his residence. ?While taking out the key to open the door, he heard the sound of the lock cylinder turning behind him. Looking back subconsciously, it was Yao Mengna. ?She was standing at the door now, holding an aluminum electric kettle in her hand. ??Although it can be plugged in to boil water, the electricity bill is very expensive. Secondly, the power of this thing is as high as 1500-2000W, which is a huge electricity burden for this old dormitory building, and may cause the fuse to burn. So when there is water in the boiling room, most people will still turn on the water directly. ??The unexpected stare lasted for about half a second, and finally ended with the latter''s cheeks turning red and running away. Why does she feel like...shes avoiding me? ?Chang Haonan touched his nose in confusion. ?However, he thinks he has one advantage, that is, he is quite self-aware in terms of emotional intelligence, so he never guesses other people''s thoughts - It is better not to guess if you are too smart and guess wrong. So just go into the house, close the door, and lock it in one go. Then he took the letter and sat in front of the desk in the bedroom again. Open the envelope. As expected, it was another pile of letter paper, but it was divided into two parts. One of the thicker ones is even in English. And its printed. Chang Haonan took a deep breath when he saw this scene. Looks like I have to make another cup of tea He stood up again, picked up the water glass and tea leaves next to him, and thought rather helplessly: If you do this a few more times, Im afraid a conditioned reflex will form. Since moving into this dormitory, Chang Haonan has only taken out this bag of tea twice. All because I wanted to read Xu Yangs letter. When he came to the living room and saw the thermos bottle, he remembered that the half-filled bottle of water in it was from before he went to Fucheng, and it had already been cold. I had no choice but to put the things in my hands aside, pick up the thermos and go out to fetch water. There are only two boiling water rooms on each floor of the tube-shaped dormitory, which are located at the two corners of the U-shaped building. Chang Haonans dormitory is located in a U-shaped section. ?So it was not unexpected to meet Yao Mengna again on the road who was returning from fetching water. "that" After the two people passed each other, the latters voice came from behind him: "There is no water in the boiling water room. Let me give you some." The volume of a kettle is roughly equivalent to two thermos bottles and a little more. Ohthen thank you, senior sister Chang Haonan said as he put the thermos bottle on the ground, and then took the kettle from the other party''s hand. By the way, senior sister, when I returned to the dormitory yesterday, you asked me if I was free. Is there something wrong? ?Yao Mengna trembled when she heard this question at first. ?But looking at his quite natural movements and expressions, she finally relaxed a little. It seems that he really didnt think much about what happened yesterday ?So Yao Mengna took a deep breath and answered almost as fast as flying: Oh, its nothing. I wanted to ask if you have time to go have dinner together. Thats itas long as its not a work matter. "ah?" Just as she was thinking about what this sentence meant, Chang Haonan had already picked up the filled thermos bottle again: Im also worried that Ill miss something important because of my break. ?Yao Mengna heard a sound of gnashing her teeth, and it took her a moment to realize that it was coming from her. The fist is hard. She suddenly regretted giving the half pot of water to the piece of wood in front of her. A few minutes later, Chang Haonan sat back at the desk with a cup of strong tea. Due to his rather special field of work, Chang Haonan had few opportunities for academic exchanges with foreign colleagues in his previous life. ??So although his English is not very bad, he has memorized it by rote for the exam. He can understand literature and so on, but it just requires a lot of thinking. So Chang Haonan almost instinctively put the English one aside and opened another one first. When the time comes to Wang''an, seeing the words is like meeting each other. [Inspired by the documentation you provided last time, I tried to apply the differential evolution algorithm to the cascade water, thermal power dispatch optimization during this period, and transformed the dual-objective optimization problem into a single-objective optimization through the cost penalty factor and trade-off factor. problem, and relied on trade-off factors to make preference trade-offs between the two goals, and achieved quite good results...] Because the power department is very urgent in urging the progress of the project, I have not been able to discuss this matter with you in advance, but I have written your name and specific contribution on the list of people who have completed the project... ?The letter itself is very short, and it only took Chang Haonan about a minute to read it. Attached is a conclusion report of the scientific research project. "Using Differential Evolution Algorithm to Optimize Water, Thermal Power Systems and Dynamic Environmental Economic Dispatch" There is still a big difference between a thesis report and a thesis. If anything, it is somewhat similar to the abstract and summary of a paper. In short, it does not explain the research content in great detail. ??However, Chang Haonan, who already had a deep understanding of the differential evolution algorithm, quickly saw the general technical route of this project. Although the source of inspiration was the instruction document he wrote before, Xu Yang further introduced the Gaussian perturbation operation operator and the local search operation operator, which is actually half a new algorithm, not to mention that she also independently completed the cascade water and fire A series of other work such as mathematical model of power system dispatch optimization. ??Although it is not possible to deduce the Riemann Hypothesis from 1+1=2, it is at least the level of understanding differential equations after learning calculus.?????Its really awesome... About ten minutes later, Chang Haonan put down the letter in his hand, leaned back on the chair and admired sincerely. Simply put, as Chinas economic development level continues to improve, the power shortage problem across the country has become more and more serious. It is very costly and environmentally unfriendly to rely on thermal power plants alone to fill these gaps. Therefore, the country has planned a series of large and medium-sized water conservancy projects including the Three Gorges. However, hydropower generation is limited by the capacity, water level and dry season of the reservoir, and cannot provide stable power supply throughout the year like thermal power. Therefore, corresponding thermal power is needed for peak shaving. Xu Yangs research is precisely to optimize the load distribution of hydropower stations and thermal power stations in various time periods within a given period of time, so as to minimize resource consumption. On this basis, it is also necessary to reasonably adjust the reactive power equipment to meet the thermal stability of the line, the transient stability of the transmission power and the safety constraints of the node voltage, so as to reduce the active network loss of the power system, improve the voltage quality and stability Enhance. That is to say, it is necessary to ensure both high efficiency and high safety. The above two indicators are usually contradictory to each other, so this problem has actually plagued the power sector for a long time. ??This project completed by Xu Yang will undoubtedly be of great help to the future national power transmission system. It can be said that it is a perfect realization of Chang Haonans idea at the beginning of his rebirth. Propose a basic methodology or research direction yourself, and other researchers will conduct specific and application-level research on this basis. As for the names on the list of people who completed the project, he didn''t particularly care. It would be great if everyone could be as good as her... Chang Haonan thought a little unrestrainedly, and at the same time focused on the other letter printed in English. This time, the content is in a very formal paper format. ANewMethodfortheNonlinearTransformationofMeansandCovariancesinFiltersandEstimators A new method for nonlinear transformation of means and covariances in filters and estimators. Then he noticed that in the author column under the title, there was an identical mark in the upper right corner of the names of Chang Haonan and Xu Yang. #These authors made equal contributions to the work of this article. Ah this Chang Haonan scratched his head when he saw this line of small characters. This means...I suddenly have an extra paper published? With the help of an English-Chinese dictionary, Chang Haonan read the entire article in about three hours. After all, a lot of it is his own content, so the reading efficiency is much faster than last time. ?This paper continues the discussion between the two previous people, and the content is naturally about a new Kalman filter algorithm and the post-processing of its results. And on the basis of theoretical derivation, a lot of experimental verification parts have been added. ?There was another piece of paper attached to the back of the paper. In addition to asking Chang Haonan for his opinions on the content as usual, Xu Yang focused on asking his opinions on the direction of submission of this paper. Submit an article ?Chang Haonan put down the pencil in his hand, picked up the cup and took a sip of tea. As a Ph.D. graduate from Berkeley, Xu Yangs thesis writing skills are much better than Chang Haonans. If the latter wants to write an article in a foreign language, he must first write it in Chinese and then translate it. The article in front of him is obviously written in English from the beginning. Even an English layman like Chang Haonan can see its coherence. and professionalism. ??So this time he made almost no changes to the paper, except to name the filtering method as CubatureKalmanFilter (Volume Kalman Filter). Its not that I havent thought about pretending to be big and naming it directly with the last names of two people, but after all, this algorithm does not break away from the scope of Mr. Kalmans thinking, and it is not easy to directly remove peoples names. Anyway, there will be opportunities in the future. As for the content of the paper Based on the numerical approximation and recursive state estimation of Gaussian integral using the spherical-radial integration criterion, of course many extensions can be made. ?For example, the accuracy can be further improved by using the spherical simplex criterion to process the spherical integral and the moment matching method to process the radial integral. Or introduce covariance constraints and cost functions to expand the application scenarios of Kalman filtering to strongly nonlinear systems and non-Gaussian process noise systems, etc. But these are all things at the application level or expansion level. The paper itself is already very groundbreaking. If too much redundancy is added later, it will be superfluous. The longer the article, the better. Whats more, because the derivation process is very detailed, this article is already twenty pages long including references, which is not short in the field of control theory principles. As for the rest Always give other people, or your future self, a chance to write a water thesis. The key is where to publish it. ?Different from the previous article that studied the integrated layout of the inlet and cone front body, the current paper is close to pure theoretical research, and there is no confidentiality. More importantly, its application scope is very broad, not just in the aviation field. Domestic cybernetic theory research has just started, and there are no decent journals at all. No matter how good the content is, no one will read it if it is posted on a junk platform. In the end, it will delay the application of new theories. So if you want to be seen by as many people as possible, you still have to consider submitting to journals under IEEE or IFAC. ?Thinking of this, Chang Haonan knocked his head in distress. In this era of underdeveloped information, there is no way to open a browser and enter Du Niang or Google Niang, enter "what journals are there in the field of control science" and get the results directly. In fact, the entire Shengjing City has just gotten involved in the Internet. ??The reason why Xu Yang wrote to ask about this matter is that her field of study is computer science and she doesnt know much about the control field. ?As far as Chang Haonan''s own memory is concerned, he only knows two top journals, IEEETransactionsonAutomaticControl and Automatica. ?Especially the former, before Chang Haonan was reborn, if he could publish an article on it, he would directly become a prominent figure in the field of control. ??He once plucked up the courage to try to submit an article before graduating with his Ph.D., but unsurprisingly, he failed. The only response was a fixed-format automatic reply email. Then its up to you... ?Chang Haonan took out a pile of letter paper from the drawer, picked up a pen and started writing a reply. In addition to the usual polite greetings, I just want to briefly talk about the situation of this journal. As a top journal in the industry, it naturally has its own characteristics. For example, the submission process is more complicated than that of its peers. Fortunately, Beijing has generally been connected to the Internet, so Xu Yang does not have to submit articles through transnational letters. In fact, if possible, Chang Haonan also hopes to have a sufficient series of domestic journals that can bear the weight of this paper. ?Various standards and evaluation systems formulated by Western academic circles are themselves part of technological hegemony. ?Of course, this kind of thing cannot be accomplished by just thinking about it. Given the current level of scientific research in China, even our own people will not read domestic journals. Many people even translate foreign papers and publish them directly in them. In the original timeline, it was probably after 2010 that a journal with a certain international influence appeared in China. The so-called third-rate companies make products, second-rate companies make brands, and first-rate companies make standards. The same is true for scientific research. Chang Haonan made some calculations. With the current efficiency, he dare not say that at a larger level, in some subdivisions, it will take three to four years to catch up with or even surpass the international advanced level, and to understand the "product" clearly. It shouldn''t be big. At this point, you can consider relying on the Chinese Academy of Sciences or Beijing Hang University to create a journal with international influence. ?Everything is difficult at the beginning. As long as you can achieve a qualitative breakthrough from 0 to 1, the subsequent quantitative superposition will not be a problem. As for longer-term things, such as establishing an evaluation standard to replace SCI, it will probably have to wait until Chinas overall scientific and technological strength leads the world. But the day will come. (End of this chapter) Chapter 128 Full status test flight (added for monthly ticket holder flankerr Chapter 128 Full Status Test Flight (Added update 78 for monthly ticket financier flankerr) Since the Turbojet 14 is not a new aircraft, and the previous ground simulation tests conducted in 624 have been very complete, the aerial platform at the flight test institute only needs to undertake a few test flight subjects such as mid-air restart and thrust transient. Thats it. The testing process went well and did not last too long. So a week after Chang Haonan returned to the 601 Institute, the installation test flight of the improved turbojet 14 engine was finally about to officially begin. Since it was already late October and there were only two weeks left before the opening of the first Xiangzhou Air Show, he and Yang Fenghao and others jointly came up with a quite radical test flight plan - Let two aircraft No. 03 and No. 04 conduct flight tests at the same time. As a prototype that was not in full condition due to being rolled off the production line too early and had no time to be replaced with a new wing, the No. 03 aircraft will remain in Shengjing and will be mainly responsible for verifying the matching degree between the inlet and the engine, as well as the aerodynamics. Overall stability. In fact, this is also the last "stumbling block" facing the August 3rd Project. The real full-state prototype No. 04 will go directly to Yanliang after completing a basic test flight at Beiling Airport to continue the original planned test subjects including avionics and fire control systems. According to the original plan, these contents should have been completed gradually in the past month, but it was delayed due to the accident of the No. 01 prototype. ?This solution can ensure the flight test progress, but it puts forward higher requirements for the final assembly efficiency of Factory 112. Lao He, the two engines for prototype No. 04 have been shipped to you from the 410 factory. ??Yang Fenghao looked at He Ming sitting across the conference table and asked in a serious tone: Under the premise of ensuring quality, please tell me, when will the final assembly of prototype No. 04 be completed at the earliest? He Ming held his chin with one hand, lowered his head and thought for a few seconds: Minimum two days, maximum three days. ?This answer made Yang Fenghata and Chang Haonan look at each other, and they both saw surprise in each other''s eyes. Even though the last time the latter went to Factory 112, the No. 04 prototype in the assembly shop was already in a state where only the engine was not in place, but two days still sounds a bit exaggerated. The basic design of the J-8 aircraft is derived from the J-7, so it naturally inherits many of the latter''s problems. For example, if you want to disassemble the engine, you almost need to remove the rear half of the fuselage first. Of course, compared to the J-7, the J-8 at least makes the rear fuselage into a whole composed of several large parts, but in general it is still a rather complicated task. ?Especially as a prototype machine, after each process is completed, there is a more complicated inspection process than that of a mass-produced machine. Thats right. In the process of communicating with the comrades in the digital design team, we have also refined some relatively advanced quality control methods. He Ming saw the concerns of the two people opposite him, so he opened the notebook in front of him and began to explain: Although we were limited by hardware conditions during the final assembly of the prototype and were unable to upgrade to digital means, we still referred to the five-station quality control model. The first station is responsible for cable laying and installation, the second station is responsible for pipeline installation and cleaning, the third station is responsible for finished product installation and electromechanical debugging, the fourth station is responsible for engine installation and hydraulic debugging, and the fifth station is responsible for flight control debugging and finished product handover. Separate quality thresholds are set after each station to strengthen the process control of the final assembly process. The zero rate of receiving problems between stations is 100%. Delivery to the next station is not allowed until the processing is completed, so as to ensure that product quality is controlled. " So after receiving the two engines, we only need to complete the work of another four or five stations. Two to three days is enough. In that case, lets make this decision Just when Yang Fenghao was about to make the final decision, a rapid knock on the door suddenly interrupted everyone''s discussion. Mr. Yang, theres an urgent call from the security department of the Central Office of the Communist Party of China. Several people in the conference room looked at each other. This is not a unit that you often come into contact with. Ill pick it up. ??Yang Fenghata stood up and left the conference room after speaking. The day for the test flight soon came. ?Chang Haonan, Yang Fenghao and He Ming stood at the door of the factory, watching two slender and graceful aircraft slowly passing in front of them. Due to the sudden phone call, the aircraft responsible for this test flight was temporarily changed to No. 04. Compared to the No. 03 prototype which was simply equipped with a new engine, the No. 04 prototype which has been deeply modified has much stronger performance in all aspects. ?The test pilot sitting in the cabin is still Fu Guoxiang. There were still a few empty seats on the aircraft tractor in front, but none of the three people sat on them. Instead, they followed the plane on both sides and walked step by step to the end of the runway of Beiling Airport. The taxiing test was completed yesterday, and all they have to do today is test flight. Test flight in full condition! ?This is the third time Fu Guoxiang has performed the "first flight" of this aircraft. But this time the situation is a little different. On the one hand, it is the test flight subjects he wants to complete, and on the other hand... Fu Guoxiang closed the cockpit cover and glanced at the tower not far away from him. ??Today a special leader will come to watch. No. 04, prepare to take off. He gathered his thoughts and focused on the dashboard in front of him. No. 04, permission to take off! ??A slightly unfamiliar voice came from the radio, speaking slower and with a slight Jianghuai accent. The takeoff process has become almost instinctive for a senior test pilot like Fu Guoxiang. Start the engine, push the lever, wait for the speed to stabilize and then release the brake. But this time, having already formed muscle memory, he found that the tachometers of the two engines had stabilized at about 3/4 long before he released the brakes according to his past habit. Obviously, the stability of the engine has been significantly improved compared to before. What happened after releasing the brakes confirmed his suspicion. ??If the last test flight, the aircraft only showed "lightness" at low speed, then this time, Fu Guoxiang really felt "powerful". ?Using a driving analogy, in the past, after stepping on the accelerator of the J-8-3, the gearbox took two to three seconds to react before downshifting at a very slow speed. After installing a new engine, once the accelerator is stepped on, the entire vehicle will quickly complete the downshifting, fueling and acceleration operations in one go. Therefore, although the total thrust of the two engines on paper has only increased by more than 1 ton, the response speed of the power has undergone earth-shaking changes. ?Several routine low-altitude and low-speed test subjects were quickly completed, and Fu Guoxiang finally received a request from the radio to conduct a supersonic flight test. (End of this chapter) Chapter 129 This is the real interceptor! (2-in-1) Chapter 129 This is the real interceptor! (2-in-1) From the moment he got into the cabin, Fu Guoxiang was already looking forward to the high-altitude and high-speed test flight. As a test pilot, he naturally read the performance report of the aircraft when making ground preparations. The above shows that the performance of the new engine replaced by the No. 04 prototype is very obvious when the flight altitude is more than 20,000 meters. If nothing else, the available thrust alone has increased from less than 4 tons to about 6 tons. Fully 50%! Generally speaking, due to changes in factors such as air density, temperature, and oxygen content, the performance of aeroengines will decrease as flight altitude increases. This situation will be more obvious at altitudes above 10,000 meters. ? Data such as sea level thrust can be used as a reference for aircraft engine performance, but it may not be of much value. It is nothing new for two engines with similar thrust on paper to have twice the performance parameters after they are installed and launched into the air. The original turbojet 14 is obviously a model whose actual performance is not so optimistic. As an interceptor aircraft, the J-8 naturally tends to optimize high-altitude and high-speed areas. But this optimization is relative. It can only be said that compared with other aircraft equipped by the Chinese Air Force at the same time, the J-8 has better high-altitude and high-speed performance. But if compared with counterparts in other countries, the results are not very optimistic. For example, as the most important performance of the interceptor aircraft, the maximum speed of the J-8 and J-8B is actually only 2.2 times the speed of sound. Not to mention that compared with monsters like the MiG-25 that have flown above Mach 3, even the F4 and MiG-23, which are not primarily tasked with interception, are stronger in this data. What''s more, due to the power response problem mentioned earlier, fast top speed does not mean fast acceleration. The original J-8''s overall performance at high altitude was still relatively clumsy. As a simple missile launch platform, it is barely enough, but... Until now, the only missiles China can use for the J-8 are the more than 50 Aspads imported from Italy. In fact, Fu Guoxiang is one of the few people in the Air Force who still believes that it is necessary to equip new J-8 aircraft after learning about the existence of Project 10 and Project 11 ?Before joining the flight test unit, he served in the Air Force of the Rongcheng Military Region for a long time and flew both the J-6 and J-8I models. ?Due to the particularity of the geographical terrain in this direction, the Chinese Air Force has long been able to maintain a year-round presence at airports below 3,000 meters. Although the plateau radar station with an altitude of 5,374 meters has a superior view and can capture the signal and issue an early warning almost as soon as the target takes off, in the face of the MiG-25R reconnaissance aircraft equipped by South Asian countries, the J-7 company taking off from Rongcheng or Licheng The range is not enough. Although the J-8I can pose a certain threat, when it slowly climbs and then accelerates to fly over, it often can only eat the exhaust of two R-15 engines... ?This has led to the other partys harassment operations becoming more and more rampant over the past decade, sometimes even deliberately provoking deep into the airspace. ?One of Fu Guoxiang''s comrades had an accident while trying to use power jump tactics to launch missiles beyond the maximum ceiling, and eventually had to leave the combat unit. So today, after experiencing the surprise brought by these two new engines, he cant wait to fly to the speed and altitude that should belong to this aircraft and explore the limits. Prepare to start supersonic flight test. ?Fu Guoxiang repeated the command from the tower, and then followed his past habit of slowly pushing the throttle valve with his left hand and pulling the lever slightly with his right hand to allow the aircraft to enter a shallow climb. ??He noticed that the response of the tachometer needle was still the same as when it was on the ground. Any movement of the throttle valve can be reflected in the change of the engine thrust in a very short time. And it can be seen from the instrument status that even at the moment when the afterburner starts to work, the engine data are still maintained within a relatively stable range. This gave Fu Guoxiang great confidence. ? ? If it is the previous No. 04 prototype, in order to ensure the stability of the engine''s working condition, the process of the throttle valve from the middle thrust to the maximum thrust needs to be controlled within 20-30 seconds. But this time, he pushed the throttle to the bottom almost twice as fast as usual. The throttle valve has been pushed to the maximum thrust state. Fu Guoxiang''s voice sounded in the tower. Only about 10 seconds passed before he was given the order to conduct the supersonic test. There was a burst of warm applause among the lay audience present, but it was immediately interrupted by the elder waving his hand. Dont disturb the comrades in the technical unit. The command room became quiet again. How is the condition of the engine? The test flight commanders voice was a little nervous. He was also a test pilot before he was grounded due to age. He once participated in the test flight of the J-8B model, so he is very familiar with the techniques of stable thrust and afterburner. The time just used was too short. Report to the tower, I have exceeded the speed of sound, the current altitude is 11670, and all engine data are very stable. ?Fu Guoxiangs steady voice continued to be heard, but everyone could tell that he was suppressing his excitement: The power response of the aircraft is much more agile than before, and... the thrust at the current altitude is also stronger, and my speed increases very quickly! ?Before the official test flight, everyone involved in the test flight will go through multiple briefings to understand the theoretical data of the aircraft. On the one hand, the results obtained through calculations and simulations often do not match the actual situation. On the other hand, many properties are difficult to quantify on paper. Hence, what the test pilot reported was definitely beyond most peoples expectations. ?However, while everyone is still digesting everything that has just happened, the No. 04 prototype has reached a new speed and height node. The current altitude is 16500 and the speed is 1850. That is to say, it has exceeded 1.5 times the speed of sound. Although the test flight will be tracked by radar throughout the entire process, ground radar can only give the ground speed of the target, and the more valuable data for an aircraft is the airspeed. So under normal circumstances, the data will still be based on the pilot''s report. For more advanced test flight systems in later generations, the ground tower can detect the status of the aircraft in real time. However, at this time, detailed test flight data can only be obtained after the aircraft returns. Fu Guoxiang in the cabin had left the sound far behind him. In front of his eyes, the number displayed on the speedometer had reached 2480, and was still increasing at a very fast speed. ?This aircraft has reached similar speeds in past test flights, but at that time, it was already very difficult to continue accelerating. Altitude 20500, surface speed 2590. This is the theoretical maximum ceiling and speed of the old J-8 in the past. In fact, on any aircraft, these two indicators cannot be met at the same time. In other words, the No. 04 prototype is far from reaching its limit. Request to continue the test flight! Fu Guoxiang finally experienced the performance of a real interceptor aircraft! ?This request made the commander inside the tower hesitate for a moment. Although the prototype No. 04 cannot be regarded as a serious "first flight" this time, it has just been replaced with a new power system. It is actually responsible for the flight test of the turbojet 14 as a carrier platform. Logically speaking, this first flight should not be too extreme a test. Not to mention that there are leaders visiting. ?Even the current altitude of 20,000 meters and the speed of Mach 2.2 have exceeded the original test flight plan. However, according to Fu Guoxiangs report, the current altitude and speed should be far from reaching the limit for this aircraft, and based on the previous high-altitude platform and aerial platform test results, there is indeed the potential for further attempts... After a few seconds of confusion, he turned back and looked at Yang Fenghao and Chang Haonan who were waiting behind him. First check the working conditions of various systems of the aircraft at the current altitude and speed. Yang Fenghao stretched out a hand and pressed it on the back of the commanders seat: Especially to see if the engine can provide stable power supply, this is very important. Fighters consume a large amount of electrical energy during flight and combat. Under normal circumstances, the IDG generator driven by the main engine generates electricity. But the engine has its limits after all, and the total power it can provide is only so much. If the aircraft is allowed to fly close to the limit for a long time, or the engine is not stable, insufficient power supply may occur. Later generations of F35 fighter jets have been troubled by this problem. They were unable to maintain the equipment on board and operate at full power at the same time. There was no solution until Chang Haonan was reborn. So, if the power supply can still be maintained normally, it at least means that the engine is still in a relatively comfortable working condition. The command command was quickly given to Fu Guoxiang in the air. As a full-state prototype aircraft, the 1471G radar is naturally installed on the No. 04 aircraft. ?Compared to the 208A monopulse radar on the J-8B, which is essentially a range-finding radar modified, the performance of the 1471G is much better. ??This is China''s first X-band airborne pulse Doppler radar. It has (at least theoretically) downward-looking capabilities for the first time and can guide semi-active radar-guided missiles to conduct over-the-horizon attacks. No matter how you say it, for an aircraft like the J-8, it meets the needs. ?However, as a price, the power consumed by turning on the radar is much higher than in the past. The radar is powered on and the self-test is successful. When the radar is turned on at an altitude of 20,000 meters, if a target drone is not specially set up, it will naturally not be able to search for anything. But as long as it can work normally, at least it means there is no problem with the power supply. Chang Haonan and Yang Fenghao looked at each other and looked happy after hearing the news. ?Compared to the aircraft body and aerodynamics, which were designed and tested entirely by their own hands, the 1471 series of radars developed by the 14th Institute of Electrical Engineering is a factor that is not completely controllable. But since the self-inspection can be completed at an altitude of more than 20,000 meters this time, it means that at least there is no problem fundamentally. As for the 11 air-to-air missile... Strictly speaking, airborne weapons are not included in the August 3rd Project. ?However, judging from the current situation, it is really possible to encounter an "organic and no bomb" situation. ?Of course these are things for later, you have to eat your food one bite at a time. The problem of missiles cannot be solved by 601. The top priority is to continue to complete test flights. The test flight is allowed to continue, but the maximum speed must not exceed 2900. ?Chang Haonan lowered his head and said next to the tower commander. ?According to his simulation calculations of the performance of the J-8-3 after the engine change, it is no longer the power factor that limits the aircraft''s maximum speed, but the airframe. When an aircraft flies at supersonic speeds in a dense atmosphere, the friction with the high-speed airflow will cause the surface temperature of the aircraft body to rise sharply, which will lead to the weakening of the structural strength of the body''s material structure and a reduction in stiffness. ??For an airframe structure like the J-8-3, which uses aluminum alloy as the main material, Mach 2.5 is basically the limit speed to ensure safe flight. If you want to continue to make breakthroughs, you have to put a lot of effort into the body materials. For example, the MiG-25 made extensive use of VNS-2 high-nickel martensitic steel and VNS-5 high-molybdenum and high-nitrogen austenitic steel, two aerospace-specific structural steels that were considered black technology at the time, in the body structure. Their material density is It is more than three times that of aluminum alloy, so it is almost equivalent to a T72 tank flying in the sky when fully fueled and loaded with ammunition. The SR71, which is even faster, uses a large amount of aviation titanium alloy. At the same cost, due to the ductility of the material, oil will leak until the aircraft is "heated" to a normal state. In short, even if the cost and technical difficulty are not considered, for an aircraft like the J8-3 that is oriented towards the 21st century, there is no need to pay a high price in order to break through 2.5 times the speed of sound. When the plane''s speed reached 2800, Fu Guoxiang finally discovered that the numbers on the instrument were rotating slower. He was already at an altitude of 22,500 meters, and the thin air caused the plane to gradually stop climbing. Since the sunlight cannot be fully scattered, the sky above Fu Guoxiang no longer appears blue, but gradually turns into dark black. Achieve speed 2890, prepare to slow down and descend altitude. If you choose to exchange speed for altitude, you can probably reach about 24,000 meters, but that is not today''s test flight project anyway. ?Moreover, due to the huge fuel consumption during afterburner flight, the fuel in the plane no longer supported his continued squandering. He has courage, but he is not reckless. ??Everyone who had just stayed in the tower and was not responsible for command tasks had already arrived near the apron. The accompanying photographers set up long guns and short cannons and aimed them at the runway. ?Ten minutes later, the slender figure of Unit 04 gradually appeared from the horizon, gradually descending and approaching the runway. ? ? Thanks to the new wing designed by Chang Haonan, the approach speed of the aircraft is much slower than before, and it looks more stable. The rear wheel touches the ground first. When the rubber came into contact with the runway, a puff of smoke rose up and a sharp "squeaking" sound was made. The parachute was then deployed. The plane finally stopped steadily at the end of the runway. ??The entire Beiling Airport was suddenly drowned in cheers. As usual, there will be another chapter in the afternoon (End of this chapter) Chapter 130 Air show preparations (Additional updates for monthly ticket financier flankerr Chapter 130 Air Show Preparations (Added update 88 for monthly ticket financier flankerr) Soon, Prototype No. 04 was towed back to the tarmac by a tractor. The crowd has been waiting here for a long time. ?Chang Haonan stepped forward, raised his head and touched the air intake of the plane. I dont know if it was his hallucination. Although it had been landing for a while, the surface of the skin seemed to still retain the heat generated during the previous supersonic flight. It''s not hot, just warm. Just like how he felt inside at this time. Compared with Yang Fenghao, He Ming and others in the crowd nearby, Chang Haonan has only been exposed to the 83rd Project for a few months. It is difficult to say that he has a deeper affection for this aircraft than others. But correspondingly, after resurrecting his life, he knows too many regrets that others do not know, and too many difficulties that only he has experienced. The feeling here is hard to describe. ? As an aircraft model, the J-8-3s status in the Chinese Air Force may not be very important. But as an aeronautical project, it can become a symbol. ?Especially because the turbojet 14 as its standard power has successfully passed the verification, it can be regarded as a breakthrough in the field of aviation power. For the first time, China has an aircraft engine that is entirely its own! Out of the corner of his eye, Chang Haonan noticed Yan Zhongcheng walking around the wing to the back half of the plane. While most people''s attention was focused on the slowly opening canopy, he gently touched the main wing. A kiss on the skin between the tailplane and the tailplane. That is exactly the position on the body used to fix the two turbojet 14s. The ground crew who came from the other side placed a boarding ladder on the left side of the aircraft cabin. Although the test flight just now was very extreme, there were actually no major overload maneuvers arranged throughout the process. Therefore, Fu Guoxiang did not bear much pressure on his body, and he could easily get out of the cabin and get down to the ground. For an experienced flyer like him, it is naturally impossible for his legs to become weak after landing like Chang Haonan. ?In addition to routine welcomes for pilots such as flowers and applause, on an occasion like today, leadership speeches are naturally indispensable. The crowd that had just been scattered around the plane gradually gathered. The specially arranged scene in front of the camera ended quickly. But no one had the intention to disperse. Because everyone knows that in the current context, some words cannot be said on the scene. ?So after the camera leaves, the real content of the speech comes. "Project 83 is a good start, and it came very timely. I said before that even if we are trousers, we must do it. You have done a good job and did not let us be trousers. And I have heard from the person in charge of the negotiations for Project 11 Comrades have said that their negotiation process has also been beneficially influenced by you. " "Relying on others will never work. Not the Soviet Union, not the United States. We can only rely on ourselves." Ten years ago, in 1986, we also used the J-8 and spent US$500 million to cooperate with the United States. "Later, we sent two planes there and invested more than 200 million US dollars in money. However, as soon as they imposed sanctions, our planes were detained and the money was not returned to us." Speaking of this, the voice in the autumn wind seems to be a bit desolate: Comrade Zongtang and I said at that time that we must avenge this! "But it''s hard to say this, or frankly speaking, we don''t dare to say it, so the external statement has become, we have to fight for this tone." ?????????But we ourselves must know in our hearts that this is revenge, no. Its just the hatred of Project 82, the hatred of the Yinhe incident, and the hatred of the two aircraft carrier battle groups! Even if we dont say it, we Chinese people must keep it in our hearts! "This model should be publicized and cheered up by the people across the country. Comrade Yang Fenghao previously submitted an application, saying that he wanted the J-8-3 to be unveiled at the air show next month. This request should be unreasonable from a policy perspective. The question, of course, is whether it is technically mature or not, and it is up to your aviation industry department to make your own judgment. In every sense, the first test flight of the No. 04 prototype after the engine replacement was a complete success. As for participating in the first Xiangzhou Air Show, it was naturally decided. ?Of course, it is not easy to temporarily change the exhibition plan. After all, this is the first air show, and the organizers of the air show lack experience in dealing with such emergencies. ?So, Chang Haonan, whose engine improvement work finally came to an end, was dragged into the ensuing work coordination meeting. ??But for him, this can be regarded as an adjustment in life. In his previous life, he was preparing for the postgraduate entrance examination. He was so busy every day that he could not find the time to go to the southernmost part of the motherland, so he missed the very memorable first Xiangzhou Air Show. ?In this era when media consultation is not developed, the inability to visit the scene in person means that we can only see extremely limited photos and scenes through newspapers and TV. Even after entering the Internet era, when Chang Haonan searched for the 1996 air show, the information he could find was still very limited. This has become a small regret for him. But this time, he could not only be present in person, but even be present as a staff member of the exhibitor. How to put it this way, its a bit like the feeling of a fan being reborn and going back in time to marry his idol. The air show has doubled the exhibition area allocated to us, so the J-8IIM that was previously scheduled to participate in the exhibition can be displayed on the ground together with the J-8-3. ??While Yang Fenghata was introducing the situation, he pulled out a form from the side and placed it on the projector platform. The above is the air shows sequence arrangement for the air performances of different exhibitors. "As for the air show, because the air show only lasts for six days, and the weather in the last two days was not very good, the arrangements are very intensive, and there is really no extra time for us. However, the exhibition said that they can arrange it for us. On the afternoon of the opening day, he was the first one in the audience. I see that in this performance sequence, behind us is the J-7MG from the 611 Research Institute, and the third one behind us is the Su-27 and Su-30 dual-plane performance by Sukhoi. Someone across the conference table made a comment: Is it possible to consider pushing the Sukhoi companys performance to the next day, and then bring the Jinmeng aerobatic team to the front? The atmosphere in the room suddenly became lively. Obviously, there are many people who agree with, or at least agree with, this plan. No matter what, the J-8-3 cannot break away from the overall design of second-generation aircraft. Moreover, it only has one aircraft and can only perform stand-alone performances. Judging from the organizers schedule, the flight performances of the two Flankers may be superior in terms of time and excitement. ??If the two performances are arranged on the same day, it is likely that all the limelight of the day will be taken away by the latter. Relatively speaking, the Jinmeng Aerobatic Team is just a civilian performance team using four propeller aerobatic aircraft. No matter how exciting the performance is, it is impossible to compete with the J-8-3 and J-7MG. but Do you really want to do this? (End of this chapter) Chapter 131 Show me the climb rate of the J-83 Chapter 131 shows the climb rate of the J-8-3 ??Yang Fenghata did not respond immediately, but held his face with one hand and fell into thinking. ?This concern is certainly valid. The J-8-3s participation in the exhibition can only be used to find potential foreign customers for at most two points, and the remaining eight points are dedicated to cheering up the Chinese people. But if it is put together with the Su-27 flight performance, then this effect... He looked at the deputy chief designer Liu Ming and Chang Haonan who were sitting on both sides of him As the latter''s role in the August 3rd Project grew larger and larger, the latter''s seats in meetings also increased. From the beginning, he could only huddle in the corner of the conference room with Lin Shikuan, but now he can be assigned to a meeting The position at the edge of the table has now become stable at the front. ??Although he may not stay in the 83 Project Team for a long time, this feeling... Its still cool! After all, not to mention sitting in this position in my previous life, even if I occasionally attended a meeting, at most I was just a spectator. Its not even attendance. I think it would be self-defeating. ?Seeing Yang Fenghao''s posture, Chang Haonan felt that it was almost time for him to speak: The Xiangzhou Airshow is not only a matter for Xiangzhou, but also for China as a whole. This year is the first time it will be held. It is the time when we need to gain reputation the most. On the one hand, the arrangements for the air show have been basically finalized. If there are any temporary changes, it will be detrimental to the exhibitions reputation. On the other hand, even if the performance of the two Flankers is postponed to the next day, it seems that it will not have a direct impact on us, but it will not make any difference to those who follow the air show. As a late-developing country, we are currently unable to produce an aircraft that surpasses the Su-27. There is nothing to be ashamed of. Going to the air show is originally to show our progress. Being timid in the face of competitors and still trying to make extravagant moves seems like we are deceiving ourselves and others and are not confident enough. Chang Haonans words quickly had an effect. ?Those who were still able to stay in the military industrial units in 1996 had more or less the energy to refuse to admit defeat. ?Now, just in time for the successful test flight of the No. 04 prototype after the engine replacement, the long-term depression has finally been released, and the morale has naturally improved. Once again being stimulated like this, the effect will be immediate. Some people immediately stood up to express their support: Chang Gong is right! Dont care about the performance of the Su-27, it must not lose its momentum! There are also extensions based on Chang Haonans analysis: Another point is that our J-8-3 and Su-27 are performing on the same field, so the pressure should be on Sukhois side. One sentence woke up more people. Yes, that makes sense Really speaking of the performance effect, Su 27s win is nothing, but if it is not as good as us, then it will be a big loss. In fact, the person who made this suggestion at the beginning did not have any bad intentions. He could only say that caring would lead to chaos, and he wanted the best performance for his own aircraft. So everyone quickly reached a consensus on this matter. "In this case, let''s determine what items need to be arranged in this 20-minute flight show." ?Yang Fenghao said and turned a page of the notebook in front of him: After all, this is still a new aircraft, and it will take some time for the pilots to adapt to it. The atmosphere in the venue suddenly became lively again. If an airplane performs...super maneuverability? ?Although everyone is engaged in aircraft design, they are not actually experts in flying itself. Not surprisingly, someone immediately raised objections: "It would be too risky to use a prototype aircraft that has not yet been designed and finalized to engage in super maneuvers. And I also know that the Su-27 will most likely perform the most classic Cobra maneuver. We cannot use our own shortcomings to attack each other''s strengths. We have to think about what we have What unique advantages do you have? ?This speech was obviously very pertinent, so everyone started brainstorming along his train of thought. Unique advantages...but the things we are better at cannot be performed at air shows. Our ceiling is higher than theirs, but... The flight show itself is of a special nature. In order for the audience to watch it with the naked eye, it must be low-altitude and low-speed subjects, and the flight overload cannot be increased very much. ?This is really not friendly enough for a high-altitude, high-speed aircraft. Chang Haonan was also a little troubled at this time. The improvements he had made to the J-8-3 in the past few months were mainly focused on the maneuverability under low-altitude and low-speed flight conditions, allowing the aircraft to fly to 2.4 levels that he could not even imagine in the past. Doubling the speed of sound is actually a matter of piggybacking. ??But with the foundation of the second-generation aircraft, no matter how good the low-altitude and low-speed maneuverability is, you really have to compare it with the Su-27 with a lifting body design... That''s not the case after all. ?While he was thinking about possible performance content in his mind, he lowered his head and looked at other content arranged in the air show, trying to find some inspiration from it. Su-27 and Su-30 fly against each other In an instant, an idea flashed through Chang Haonan''s mind. Actually, if I have to say it, we still have advantageous projects... The No. 04 prototype can be allowed to focus on some vertical maneuvers, especially large-angle climbs. After replacing the new engine, the thrust-to-weight ratio of the aircraft will exceed 1 when taking off without weapons. ??Of course everyone present is well aware of the basic performance of the aircraft, but some people still have concerns: Vertical maneuverability... But the thrust-to-weight ratio of the Su-27 is even higher. It is really better than the climb rate. Unless it goes above 15,000 meters, it still wont be able to take advantage. This is true in common sense, but compared with other performance, there is still a certain room for operation in this aspect. ?Chang Haonan adjusted his sitting posture and said to the person who just spoke: I saw the performances submitted by Sukhoi. They were all performed by two machines, and the whole performance was very long. This means that the two aircraft have to load more fuel when taking off. Moreover, the single-seat Su-27 aircraft has to cooperate with the movements of the two-seat Su-30 during the performance and cannot exert its full performance. Everyone is an expert, and after Chang Haonan mentioned something like this, they will naturally understand what is going on. For almost all fighter jets, the two-seat version requires extra weight and space to accommodate an extra pilot and corresponding operation and life support equipment, so its performance will be weaker than the single-seat version of the same model. Some. Depending on the specific model, the difference is probably between 5% and 10%. But the Flanker family is an anomaly. Due to its iconic nose design with a depressed angle, the "back seat" of the tandem two-seater model Su-27UB is strictly behind and above the front seat, and the height difference between the two pilots is huge. ?This design brings unparalleled visibility to the back seat (which is useless in most cases, and is essentially to accommodate the huge radar), but it also greatly increases flight resistance accordingly. ?This is not over yet, because the heightening of the cockpit will affect the vertical fin efficiency and directional stability, so the two-seat version has been replaced with a larger vertical fin... ?In short, after a lot of hard work, the flight performance of the two-seat Flanker is far worse than that of the single-seat version. It is generally believed to be about 15% or even higher. Not only that, our performance time is relatively short, so there is no need to bring half a full amount of fuel according to the normal routine, and we can also reduce some weight. Calculated inside and out, at least from a physical perspective, it should be able to produce vertical maneuverability that is not inferior to those of the two Flankers! (End of this chapter) Chapter 132 In the news? Chapter 132 was in the news? ?This work coordination meeting lasted from the morning to the evening of the second day after the first flight of the No. 04 prototype. Even lunch was a box lunch ordered directly from the canteen. There is not much content directly related to the air show, but the J-8-3 is an aircraft in the process of test flight after all, so it will also involve many test flight subjects that must be completed before the opening on November 5. ? ? Thanks to the numerical simulation methods that Chang Haonan is good at, the test flight progress of Project 83 is very fast, and the number of sorties required to complete the same task has been reduced by half or even two-thirds compared with the past. But this puts forward higher requirements for the selection of test flight parameters and process arrangement. For him, it also means greater pressure. Fortunately, with his past experience and the help of the system, he can still cope with it. ?Chang Haonan even likes the days when he has such a heavy burden on his shoulders. By the way, the system ?Thinking of this, he quickly opened the system panel while walking back to his dormitory. The No. 04 prototype equipped with a new engine successfully completed its test flight yesterday. This aero-engine improvement project that has lasted for several months has finally reached an important node. According to the characteristics of the system, this time can generally be regarded as completing the task. Research Points: 260 Theoretical level: LV2 (1000/10000) Engineering experience: LV2 (270/10000) Management ability: LV1 (600/1000) Comprehensive ability: LV1 Projects in progress: 0 Projects that can be carried out: 0 As he expected, the number of projects in progress has returned to 0. ?However, the reward for completing this project was indeed beyond expectations ? 150 scientific research points, 500 theoretical experience points, 1000 engineering experience points and 500 management experience points. ? ?Chang Haonan took several deep breaths in succession before he managed to calm down. ?According to the instructions given by the system when you are just reborn, the number of scientific research points and three experiences gained each time are directly related to the impact of the scientific research project. He knows that the Kunlun engine project is very important to China. But it is obvious that in the judgment of the system, this improved turbojet 14 is even more important. ?At the same time, inside a tube building apartment in Liucheng City, Liaoning Province. Chang Jiayao, who had just had dinner, was sitting in front of the color TV she had just bought at home, preparing to enjoy the rare relaxation time for high school seniors. Born in 1980, she was basically one of the last "legal" second-born children in the local area. She was also a girl, so she was loved by her mother Zhou Li and her father Chang Yuanchao. ?In addition, Chang Jiayao is really studious and obedient, so even though the college entrance examination is approaching, she is still allowed to watch TV for a while every weekend night. As the time came to seven o''clock in the evening, the picture of three primary color light beams flying over the earth appeared on the TV on time. News Feeds. In the mid-1990s, there weren''t many TV programs. People like her who could only watch TV twice a week were obviously not the audience for TV series. In the end, what Chang Jiayao was most interested in became the news. The first news today is the special content of Shengjing Aircraft Industry Group. In 1996, Xinwen Broadcasting realized for the first time all-day broadcasting, additional content and live broadcast. Therefore, the efficiency of news arrangement was much improved compared to the past. ? ?Accompanied by the anchor''s pleasant voice, the news footage showed a graceful fighter jet speeding away and then lightly leaving the ground... ?Perhaps most girls will not feel anything about this kind of news, but Chang Jiayao, who has decided to participate in the recruitment next year, is different after all, so she stares at the TV screen with relish. Since most of the test flight was completed at high altitude, ground cameras could not capture much. After showing the footage of the plane taking off and several low-altitude subjects, it was followed by landing, and then the test pilot left the plane and received a hero''s welcome... Suddenly, Chang Jiayao noticed a figure next to the air intake. ?While most people were paying attention to the test pilot, the man reached out and touched the side of the plane. Even though the definition of the picture tube TV was quite average and it was just a back figure, Chang Jiayao almost relied on instinct to recognize that it should be her brother Chang Haonan. Dad! Mom! Chang Jiayao quickly poked her head out and shouted to Chang Yuanchao, who was cleaning up in the kitchen, and Zhou Li, who was preparing lesson plans in the bedroom: I saw my brother on TV! As soon as he finished speaking, with a few footsteps, the couple rushed into the living room almost at the same time at an unprecedented speed. ??The pot brush in Chang Yuanchao''s hand was even dripping with water. "where?" "It just passed by, but wait a minute, there might be more." Chang Jiayao''s tone was a little regretful. "Is this... reporting on Shengjing''s affairs?" ?Zhou Li asked, pushing up her glasses on the bridge of her nose. Yes, its a test flight of a new model of aircraft. When talking about new aircraft, Chang Jiayaos eyes seemed to be shining with stars. When she learned about the pilot recruitment policy before, she knew that there were currently only female pilots flying transport aircraft in China. ??But this does not affect Chang Jiayao''s expectation that she can fly on a fighter jet. After all, there is always a first for everything. ?Especially after reading Lilia Litvyaks story in a book, she even put a white rose sticker on her pencil case. At this moment, the figure just now appeared in the picture again. It''s just that this time it appears from one side. Its a pity that I still havent seen the face. "This is it!" ?Chang Jiayao jumped directly in front of the TV, pointed at the screen and said. This Chang Yuanchao scratched his slightly bald head: Did you see his face just now? "No." Chang Jiayao shook her head decisively, and then said in a very firm tone: But you can also recognize thats my brother from the back! "It makes sense to say it''s him, but... Xiaonan didn''t tell us that he went to Shengjing, right?" Zhou Li''s tone was filled with uncertainty. At this time, the next news was broadcast on the TV, so Chang Jiayao also sat back on the sofa. Whats the matter? Missions of this type must be confidential. You cant talk to us casually on an ordinary phone. She had no doubts about her own judgment. Stop it, hes only in his senior year at the beginning of school. Even if he does have some confidential tasks as you said, its his turn to be an undergraduate to do it Chang Yuanchao did not go to college, but he was quite knowledgeable. He immediately rejected his daughters judgment: Its probably because Xiaonan didnt come back during the summer vacation, and you missed him a little bit. "But" Chang Jiayao wanted to say something else, but in the end she just pursed her lips and did not speak. Okay, its already the end of October, and Brother You will definitely be back from winter vacation Zhou Li touched her daughter''s head, turned around and left the living room first. That night, Chang Jiayao, who was lying in bed, was still thinking about the scenes on the TV news. An idea suddenly appeared in her mind. If the recruitment is successful, will I have the opportunity to fly the plane designed by my brother... (End of this chapter) Chapter 133 Possibility of a 100-ton airliner (for flankerr Chapter 133 The possibility of a 100-ton passenger plane (Added update for flankerrs reward) ??The next week flew by like a flash, and it soon came to two days before the opening of the Xiangzhou Air Show. In order to adapt to the military''s updated equipment naming habits after entering the 1990s, and to make it easier to communicate and understand when facing possible foreign customers, the final product of Project 83 was officially named - J-8C. Chang Haonan, Yao Mengna and others, as technical support staff of the exhibitors, naturally arrived at Xiangzhou in advance and stayed at a hotel near the Jinwan District International Air Show Center according to the arrangement of the exhibitors. ?This high-end hotel can be said to have been specially built for the Xiangzhou Air Show. Exhibitors, media, and invited guests all stayed here. The first Xiangzhou Airshow was not divided into professional days and open days as it was later. From the first day, everyone could buy tickets to visit. So people who eat melons can actually live here. ??Its just that among ordinary people in this era, there are not many people with enough money in their pockets to make a special trip to watch the air show, and even fewer can afford to stay in this hotel. At the 14th Air Show in later generations, Chang Haonan also came here during his vacation. As it turned out, the hotel was fully booked a month in advance. ?Yang Fenghao, the chief designer of the aircraft, did not follow. It is said to be "technical support", but aircraft designers are really of little use in this situation. ? ?The focus is still on the technical workers from Factory 112 and the ground staff from Beiling Airport who came with them - Xiangzhou Airport is a purely civilian airport, and it is impossible for anyone to maintain fighter jets from various countries, so these tasks need to be done by exhibitors. ? It''s okay if you''re in the country, you just need to send someone. If you go to a foreign country, especially a place where the aviation standards are very different from your home country, you have to bring your own support equipment and even aviation fuel. Otherwise, it can only be displayed on the ground. ?Take the Warriors Aerobatic Team as an example. When they perform abroad, they will be followed by at least one IL-76 transport aircraft for accompanying support. So going abroad to participate in an exhibition may seem simple, but in fact it is quite a test of a countrys aviation industry level. Twenty-six years Chang Haonan, who was lying in bed, originally wanted to take a rest, but memories about the past or the future flowed out slowly but continuously like fine sand in a funnel, making him unable to sleep no matter what. Chang Haonan, who was tossing and turning and unable to sleep, simply gave up the idea of ??resting, got up and went to the window to open the curtains. ?Out the window is the 4,000-meter-long 4E-class runway at Xiangjiang Airport. ?There was a faint roar of airplanes from the horizon. ?Chang Haonan raised his head and looked into the distance. A formation composed of an Il-78 tanker and two Flankers are aiming at the runway and slowly descending. As one of the few foreign exhibitors that can conduct actual flight demonstrations, they occupied a large part in the early publicity of the air show. Relatively speaking, the J-8C, which decided to participate in the exhibition at the last moment, failed to obtain any publicity resources. After all, in this era where print media and radio and television are the main communication carriers, ten days is still too short. Higher in the sky behind them, there is also a twin-engine medium-sized passenger plane circling. ?After thinking for a while, Chang Haonan finally remembered that it should be a Tu-204S, which is the cargo aircraft type of Tu-204. Tupolev has always hoped that this model can open up China''s civil aviation market. To be fair, for an aircraft that completed its first flight in 1990, the Tu-204 was not considered backward in the early 1990s. But the timing of this first flight is destined to be a tragedy. ??Without the support of the Warsaw Pact market, this single model cannot compete with the well-established Boeing or Airbus families, not to mention that they do not have enough funds to further optimize the aircraft. For domestic airlines, there is absolutely no reason to introduce a new aircraft that has no special advantages in performance and is not compatible with the maintenance and support system of Boeing, Airbus and McDonnell Douglas. So Tupolevs efforts were in the wrong direction from the beginning. Because if we think about it differently, this model can still be seen as a military special aircraft platform. No matter what, it is better than Figure 154M and Yun 8... ??More importantly, if the various data of the aircraft can be adjusted to comply with the standards of the Chinese Aviation Industry, it can also be used as a practice for manufacturing 100-ton passenger aircraft. ? It is already early November, and Hufeis MD90 production project has basically entered the countdown to life. ?In the original timeline, after the MD90 production line was stopped, the Ministry of Aviation placed its hopes on the Europeans, hoping to produce a 100-seat AE100 small mainline passenger aircraft in China. The result, of course, was unsurprisingly nothing. ?Later, Airbus took the AE100 design directly and built the A318 passenger aircraft almost intact. ??In short, after several twists and turns, the aircraft production line that was upgraded at a large cost had to be used to provide tools and equipment for the Airbus aircraft assembly line in Tianjin. Even more valuable skilled workers with experience in large-scale aircraft manufacturing also had no choice but to resign or change careers because of the loss of orders. It also means that the technical system that was barely built after many twists and turns since the Yun-10 project collapsed. Compared to Yun 10 itself, this is a more heartbreaking loss. There has been a technological gap for more than ten years since then. The largest aircraft that China can produce on its own has always been the 60-ton Y-8. It was not until the C919 No. 001 prototype rolled off the assembly line in 2015 that Shanghai Aircraft Corporation resumed its mainline passenger aircraft assembly capabilities. In fact, both Airbus and Boeing are at their peak right now, and it is impossible for them to agree to complete the main part of aircraft production in China. As for switching to using Chinese standards to produce aircraft... Laughing to death, there was nothing so good in my dream. But Tupolev was in trouble and it was different. ?Except for Figure 160, as long as you give money, you can basically give whatever you want. With the precedent of Sukhoi Design Bureau making concessions on Project 11, there is no need to worry about the Russians being as stubborn as in previous lives. Furthermore, since it involves the adjustment of production standards, it is inevitable to cooperate with Chinese technical personnel. In this way, we can also learn a little bit from the design of large aircraft. ??After all, Chang Haonan cannot provide others with proficiency like the techniques in the novels about cultivating immortals. The projects he will face in the future will only become more and more complex, and it is unlikely that the main work will be completed by one person like improving the design of wings or compressors. In the field of engineering, experience is at least as important as theory. Otherwise, Britain and the United States, which were once infrastructure madmen and major shipbuilding countries, would not have lost these capabilities in such a short period of time. "Um" Chang Haonan looked out the window at Tu 204S, which was already sliding to the ground, and a clearer idea emerged in his mind. Its still a win-win situation. A win-win situation means I win twice. (End of this chapter) Chapter 134 All living beings (two in one) Chapter 134: Appearances of Living Beings (Two in One) ??While Chang Haonan was watching the Tu-204S in the distance slowly sliding into the parking space from the runway, in another room downstairs from him, Yao Mengna was also sitting on the bed and staring out the window. ??Its just that her eyes were not focused on any particular place, it looked more like she was simply... In a daze. So much so that even though her colleagues in the same room called her several times in a row, there was no response The travel standards arranged by 601 for Chang Haonan are already at the same level as those of Yang Fenghao and others, but most people still require two people to live in a standard room. It wasnt until the other party patted her on the shoulder that she finally came back to her senses. What are you looking at? So focused. ?The woman who lives with Yao Mengna is the same female engineer who was on a business trip to the 624 Institute last time, named He Meiying. ?The latters husband also works in the 601 Institute, but he is mainly responsible for security work, so naturally he cannot go on a business trip with him. By the way, after you returned from Fucheng last time, did you make an appointment with your regular workers? He Meiying asked casually while sitting on another bed while wiping her wet hair with a towel. Gossip is human nature. What''s more, the gossip between two young people in 601 School has become very famous in recent months. ?Although there is no such saying in this era, the reality is that many people in the same office as He Meiying are waiting to talk about this CP. "Ah I" ?Yao Mengna never expected that the other party would ask a question of this level, and she was immediately speechless. Ah, what, could it be that the last time you asked me about places suitable for two people to eat near 601, you were just to treat others? The fighting capabilities between married women and unmarried women are not at the same level at all. As a person who has experienced this, even if He Meiying does not have much direct contact with Yao Mengna in her daily work, it is enough for her to understand what this young girl is thinking. "No, I...I didn''t make an appointment." Yao Mengna said, feeling her cheeks feel a little hot. "ah?" This time it was He Meiying''s turn to look shocked. She even stopped wiping her hair with her hands. After a while, she hesitated and asked: He refused? Thats not the case. Yao Mengna shook her head and replied in a dejected tone: Or I dont have the chance to invite you at all. The day I returned to No. 601 Office, I asked him if he was free, and the result...he simply said no..." He Meiying took a deep breath. He said no, and then you didnt try again? Her tone was quite full of hatred, and it was hard to say who she was targeting. Perhaps its both. He has been busy with the air show since then Oh my God He Meiying sighed and held her forehead helplessly: You two are really Then she raised her head and looked at the time on the wall clock next to her: Its just about time for dinner, and we shouldnt have much to do during the air show these days. If you go find him now, it will definitely be fine. He Meiying was also worried that her CP would not be BE. "I..." Yao Mengna''s tone was a little shy: "I was just thinking about what clothes to wear better." ?At this time, He Meiying noticed three dresses of different colors and styles on Yao Mengna''s bed. She frowned: Did you only bring these dresses? Thats not true. Yao Mengna lowered her head and took out a few more sets of clothes from the suitcase: But I think these three styles look better. Is there something wrong with them? Thats not true. I just think that judging from Chang Gongs usual behavior, he might prefer you dressed like this. He Meiying shook her head, stood up and walked to the bed next to her, picking out a pair of jeans and a white shirt. Even though they are part of two sets of clothes respectively. A few minutes later, Yao Mengna stood in front of the mirror after changing her clothes. In fact, based on her appearance, it is a bit difficult to make herself look bad. ?However, this outfit does have a slightly different feel when mixed together. At least the advantage of leg length is very obvious. Thank you, Sister He, then I will Just as Yao Mengna was about to change her shoes and go out, she was pulled back by He Meiying. Are you going to go out like this? "if not?" The former glanced down to make sure that he had not missed anything. He Meiying was too lazy to talk nonsense and pulled her aside, pressed her down on a chair, and then dug out the makeup box from her luggage. Just sit here and dont move. An hour later. ??When the doorbell of Chang Haonan''s room rang, he was summarizing his somewhat detailed thoughts on a piece of paper. In the nearly ten years from the mid-1990s to the beginning of the 21st century, China''s military construction has gone through many detours. The reasons are naturally very complicated, including simple technical problems, too unrealistic ideas of Party A users, various obstructions and sabotage by internal and external enemies, and even various coincidences. Therefore, not everything can be leveraged by Chang Haonan. He needs to promote and use his influence as efficiently as possible. There is only some finishing work left in the 83rd Project. The subsequent projects, including the 10th and 11th projects, will probably be much larger and cover many more areas. Due to the existence of the system, he does not have to invest all his time and energy in one direction, but can run in multiple threads. ??But the human brain is not a computer after all, and even if it is a computer, multi-core optimization also tests the level of the software. For example, in the works of a Swedish game company, there are many cases where one core is difficult to use and seven cores are difficult to watch. So he needs to roughly divide the projects he can think of into several priorities - First of all, it must be the third generation of aviation power, which is the turbofan 10 engine. As the heart of an aircraft, the aviation engine can be said to be the foundation of an aircraft model. Not to mention that a good third-generation engine core can also expand into a complete steam turbine family. ?However, although the Taihang project was established in 1987, it was still basically in a state of uncertainty by 1996. The overall design plan had been changed and revised but was not finalized, let alone the application of various new technologies later. This is an absolute problem. Even with the help of the system, it cannot be solved by changing the compressor design in half a month. The second step should be the production of large-sized structural parts for aircraft, that is, heavy-duty die forging presses. The titanium alloy frame of the Su-27 is made of two parts that are forged and formed separately and then welded together. ??But on the one hand, titanium alloy welding is inherently difficult, and on the other hand, the production efficiency and yield rate are far inferior to direct integrated forging. The titanium alloy structural parts of later J-20s are made in this way, so it is better to get used to it first. ??Moreover, if we really plan to completely open up the production line of 100-ton mainline passenger aircraft starting from rough materials, this will be an unavoidable technical threshold. It is a big job, and it is a big job in the physical sense. Even if the design drawings are taken out, it will be difficult to implement it in less than a year or two. These two projects can be expected to take a long time, so if you have the opportunity, start as soon as possible. The development of airborne weapons must be considered and put on the agenda, and the freedom of medium-range missiles cannot be achieved after 2010 as in the previous life. ?There are also helicopters, both the army and the navy have huge gaps. The Z-8 cannot be used unless it is torn down and started over, and the Z-9 is too small and has insufficient potential... There is also an urgent need for large transport aircraft, but with the current strength of Chinas aviation industry, it is indeed unrealistic to build a 200-ton strategic transport aircraft in a short period of time. So you can first consider taking out some chips and get some IL-76s from the Tashkent factory, which can also be used as early warning aircraft and tanker platforms. The funds saved by Project 11, including the money saved from buying Su-30MKK in the future, should be sufficient. ??If you want Maozi to stop working as a foreigner, you must have a little father (such as a loving father) or a little mother (such as Ye Er) who can whip him from behind. In addition, since we have a good special machine platform, corresponding models must also be arranged. But there is no technical reserve in these areas. The real starting point for China''s special aircraft should be the 8J maritime surveillance aircraft, which will not enter service until two years later. The airborne equipment is still imported from the United Kingdom. Relatively speaking, among Western countries, the United Kingdom and Germany are two relatively good partners, and they are much more reliable than the others. But no matter what, Britain and the United States are a conjugated father and son, and the effect of using British radar to deal with American threats can be imagined. In short, after conducting a systematic analysis, we can only say that there is a lot of room for progress in China''s industry. ?Thinking about it this way, it is simply a miracle that the J-20 can take flight in 15 years. ?Because he was too focused on the analysis just now, the doorbell rang several times in a row before Chang Haonan woke up from the brainstorm. ??When he opened the door and saw Yao Mengna at the door, he was still thinking about anti-submarine aircraft and electronic warfare aircraft. The brain switching process takes time. But this moment of sluggishness changed its meaning in the eyes of the latter. Thank you, Sister He ?Yao Mengna secretly thanked He Meiying for his help just now, and waved her hand in front of the other person''s eyes. At this time, Chang Haonan also came to his senses. Senior, do you have something to do with me? Lets go have dinner together. ?Yao Mengna learned her lesson this time and went straight to the point without even using questions. According to He Meiying, since the other party likes to be passive, then simply dont give him a chance to choose. Thats fine, I just saw a good restaurant on the first floor of the hotel, so Ill go there. Although Xiangzhou, especially near the airport area, has been eager to prepare for the opening of the air show, it is no better than twenty years later. ?It''s already around five o''clock now, and it will definitely be dark by the time we have dinner. It''s somewhat dangerous to walk outside in an unfamiliar place. The first floor of the hotel ?Yao Mengna hesitated for a moment. She has visited that restaurant. There are no single rooms, only a lobby, and the environment is quite noisy. It is actually a little different from the "date" scene in her dream. But she thought about it and felt that her junior brother looked at her straight when he opened the door just now, which means that the wood has finally opened up. So if there is a first time, dont worry about the second or third time in the future. The hall will be the hall... So he chose to nod in agreement. But soon she felt a little regretful. Because Chang Haonan''s attention didn''t seem to be on her. In 1996, China could hardly be called an aviation power, but at least it could be considered an aviation power. Especially in terms of demonstrated potential. ?Hence, this first Xiangzhou Airshow naturally received a lot of attention. Some people are looking forward to further opening up this market that has not yet been fully developed, while others are looking forward to seeing the hope of the aviation industry taking off at this air show. ?Two people, an old man and a young man, carrying professional photography equipment and looking like journalists, were sitting in another seat near Chang Haonan and Yao Mengna. Brother Liu, your article was quietly published in todays newspaper before the air show started. Its quite positive. "It''s a warm-up. As journalists, we must dare to make judgments. Moreover, this air show has attracted a lot of attention. Even the sales of newspapers have skyrocketed in the past few days. The editor-in-chief also said that more prints will be printed. This is all performance. ah." The older reporter replied with a look of imparting life lessons. "Brother Liu, I read the analysis you wrote and said that our country''s new aircraft may be unveiled at the air show. How do you know this? I see that in the information provided by the exhibition, there is only one J-8IIM and one J-7MG? " The young voice just now continued to ask. Hey, how can I, an ordinary person with an average head, know this? Its all based on analysis. Hearing this, Chang Haonan''s expression became a bit astonished. The J-8Cs participation in the exhibition was a temporary decision. At that time, the promotional materials had been almost completed, and it was obviously unrealistic to recreate it, so the exhibition organizers proposed to treat it as a surprise. Chang Haonan thought for a while and felt that since the J-20 debuted at the 2016 air show with his face half covered while holding the lute in one hand, it seems that it is not unreasonable for me to plagiarize the wisdom of future generations, so he directly talked to Yang Fenghao and The exhibition organizers discussed and designed a more stunning and sudden appearance method. So even though the J-8Cs participation in the air show was not kept secret, few people should know about it. ??It would be pretty awesome if someone could analyze it through some clues. At this time, the reporter known as Brother Liu spoke again, but his voice was much softer than before. If Chang Haonan hadn''t had extraordinary hearing, it would have been difficult to hear clearly: Analysis, you have to grasp the key contradictions. The point is not what is at the air show, but you have to figure out what people who buy newspapers want to see. "Because of what happened at the beginning of this year, everyone in China who pays attention to this air show is hoping to come up with something to cheer up. At this time, you have to do what you want. If you bite the bullet, there will definitely be a new aircraft as a surprise. The more mysterious the statement, the better. Its just a prediction anyway, so what if its wrong? "That" Such an answer was obviously completely unexpected by the young man sitting opposite him: So now so many people believe that there will be a new plane, if it doesnt happen by then, wouldnt everyone be very disappointed or feel like theyve been cheated? Brother Liu curled his lips and said in a nonchalant tone: "So what if you are disappointed? Let me tell you, if that situation really happens, others will only think that the people who built the airplane are not living up to expectations. It has nothing to do with our newspaper. The real deal is to earn the sales volume during the past few days during the exhibition." of" ?Chang Haonan suddenly felt that the expression on his face at this time should be very exciting. (End of this chapter) Chapter 135 Gorgeous appearance (additional update for flankerr’s reward) Chapter 135 A gorgeous appearance (additional update for flankerrs reward) ??When Chang Haonan returned his attention to Yao Mengna sitting opposite, he found that the latter''s mood seemed to be much lower than before. After thinking about it, he felt that it was probably because his senior sister also heard the conversation between the two reporters just now. ?For people who have never experienced the Internet era and have not seen the limits of these media, the words of the old reporter are indeed very uncomfortable. Therefore, Chang Haonan feels that as a man, he should take the initiative to find some topics that can make the other party happy: Senior sister, how do you think everyone will react during the flight show tomorrow afternoon? ?Yao Mengna used chopsticks to turn over the food on the plate in front of her, and she couldn''t help but think silently in her heart: "I chose it, I chose it..." ?This is how I finally maintained my dignity. But she actually didnt hear the second half of the conversation between the two people next to her. Since there have been newspaper reports, the audience should be looking forward to the appearance of the new aircraft itself. Since this topic has been discussed, Yao Mengna also thought about it seriously for a while before replying: However, even if they can guess the aircraft model, they will never be able to guess its performance. Besides, there are other things in our exhibition area. ?Although there are also wall-climbing parties in this era, due to the speed of information transmission, the test flight status of the J-8C will not be known to too many people. "Indeed, these two people are quite right..." Chang Haonan shook his head helplessly. No matter what the starting point of the journalist surnamed Liu was, he really got into trouble. On the opening day of the air show, Chang Haonan got up early and arrived at the main venue at the International Air Show Center at dawn. As the host, the preparation time left for China Aviation Industry is longer after all. Unlike many exhibitors who arrived yesterday afternoon or even evening and need to set up their booths overnight, so he simply took advantage of the fact that there were not many people. Walked around the venue. Since the main body of China''s export of air force weapons and equipment is China Aviation Technology Import and Export Co., Ltd., the aviation industry group personnel who came to the exhibition this time, no matter which research institute or manufacturing plant they belong to, all claim to the outside world that they are personnel of the aviation technology company. , including indoor exhibition halls and outdoor exhibition areas, are also arranged together. The Xiangzhou Air Show is not the first air show in China, but it is the first air show in China that arranges actual displays and flight performances. It is completely different from the Beijing Air Show, which only has an indoor part and is nicknamed the "model show". Not on the same level. Hence, all factories in the aviation industry have basically come up with their own products. In addition to the J-8IIM of 601, Hongdu Institute of 650 brought Qiang 5M attack aircraft and K8 trainer aircraft, Bingcheng Institute of 602 brought Z-9 helicopters, and Chengdu Institute of 611 brought J-7MG... ?Even Chang Haonan saw something in the outdoor exhibition area that was definitely not exhibited in the original timeline Prototype No. 02 of MA-60. In fact, let alone participating in the exhibition, there was no such aircraft in the previous life. Whats even more exaggerated is that the display panel in front of this aircraft even has the logos of China Aviation Industry and Italys AgustaWestland printed on it Obviously, after replacing with a new wing design and having a core competitiveness focused on fuel economy, this regional passenger aircraft project is progressing quite smoothly. At the most conspicuous place in the aviation industry exhibition area, which is also closest to the runway of Xiangzhou Airport, there is still an empty space. There is a slender cylindrical object covered by a rainproof cloth next to the empty seat, and the display board in front is also covered with thick white paper. ?This is of course prepared for the J-8C that has not yet appeared. As for the foreign exhibitors, Chang Haonan also found some differences. Its still AgustaWestland. They brought two general-purpose helicopters, the A109 and A119. The latter even just completed its first flight last year, which is considered its first public appearance. It is enough to see that they attach great importance to it. You should know that the current Xiangzhou Air Show is not as good as it will be in the future. Although it has received a lot of attention, foreign countries, especially Western countries, mainly just watch the show, and the exhibits they bring are mainly models. ?Even some Western media stated very bluntly in their reports that the historical value of the Xiangzhou Air Show is higher than its commercial and technical value The meaning is very clear. The air show held by China is just the same as ours 20 or 30 years ago. It looks like a cultural relics exhibition. Similar ridicules in the previous life continued even into the first decade of the new century. Wandering around, when Chang Haonan returned to the exhibition area belonging to the aviation industry, the sky was already bright, and staff from other research institutes had also arrived one after another. There are even many acquaintances of Chang Haonan among them. For example, Lu Yuying from the 611 Institute and Yi Yuanhe from the 606 Institute. ?But now is not a good time for small talk. Because there have been more reporters and exhibitors coming from Haojiang, as well as tourists coming from Xiangzhou City and even surrounding cities. Even though Chang Haonan knew the appeal of the Xiangzhou Air Show, the scene in front of him far exceeded his imagination. In fact, it far exceeded the imagination of the air show organizers. In order to cope with this air show, Xiangzhou specially built a new two-way six-lane highway. It is said that the locals scolded it for a long time and thought it was impossible to use it. ?However, the road is now almost impassable with vehicles coming and going. Until almost noon, many people are still stuck on the road and unable to enter the venue. Not only that, there are no fences around most of the aircraft on display, because the original plan was to rely on staff to maintain order. There was no official food and water for sale on site, and there was not even a rest area with seats in the huge venue... In short, despite several years of preparation, the first Xiangzhou Air Show still opened in such a somewhat chaotic scene. Not surprisingly, even though Chang Haonan was at the backstage of the staff, he could hear the complaints from the tourists around him. Also because of the "warm-up" by media people including but not limited to Lao Liu, most people''s expectations for this air show are already full, even though the two Flankers are parked in a very conspicuous position near the airport runway. , but most visitors who come to visit will still rush to the Chinese exhibition area first after entering. As a result, it can be seen at a glance that there seems to be nothing that can be called a "surprise" in the venue. The only relatively new one is the J-8IIM, but anyone who often pays attention to air force equipment has already known about it, and has even seen this aircraft in magazines and reports. "what the hell" In the crowd, a young man with a camera hanging around his neck curled his lips in dissatisfaction. He took a leave of absence from school after seeing the article in the newspaper. ??Even spent a lot of money to stay in the hotel closest to the air show center. ?As a result, after arriving at the scene, my enthusiasm was completely dampened as if a bucket of ice water had been poured down my head. Where are the new planes ?However, even though he was here, he still took a few photos without interest, and then prepared to go to the Russian exhibitor''s exhibition area next door. I only brought two rolls of film in total, so I cant waste it on these things. The young man shook his head while talking to himself. ?However, at the moment he turned around, a sharp roar that became increasingly louder suddenly came from the air behind him. He turned around and saw only a slender fighter jet slowly growing in size in his field of vision. ?While passing over the venue, the plane made a special swing from side to side, as if to say hello to the crowd on the ground. ??It was also through this action that some sharp-eyed people saw the eye-catching red fonts printed on the side of the cabin. J-8C. (End of this chapter) Chapter 136 J-8C, aerial performance Chapter 136 J-8C, aerial performance ?This is exactly how Chang Haonan arranged for the J-8C to appear after coordinating with the exhibition party. Like the J-20 at the 2016 air show, it did not land at Xiangzhou Airport before the air show, nor did it make any announcement. Instead, it waited until the opening ceremony was over and flew directly over to start the performance! After the performance, the plane will land on the runway of Xiangzhou Airport, and then, under the eyes of tens of thousands of spectators, it will be transferred from the runway area by a tractor to the space reserved in advance in the exhibition area. For the air show organizers, such an unusual appearance is definitely a big test. But its definitely a highlight! So, after careful consideration and consultation with Xiangzhous superiors, Zhan finally agreed to this seemingly crazy plan. Under the control of Fu Guoxiang, prototype No. 04 flew over Xiangzhou Airport at a speed of slightly more than 250km/h. This is a very slow speed for a second-generation aircraft, so the slightly harsh scream of the turbojet engine lasted for a long time before gradually fading away. But for the audience at the scene, the sound was so beautiful! I seem to have seen...J-8C on the side of the plane just now? There were people nearby who were not sure about what they saw. Mainly no one expected that the so-called "new aircraft" would appear in front of everyone in such a way. J-8C, should it be an aircraft built in the August 3rd Project? After the Air Forces naming method was changed, letters instead of numbers were used to distinguish different sub-models. This aircraft can actually come to the exhibition? I remember that this summer, there was news from Haojing that a second-class accident had occurred, which should have happened to the J-83. It was only three months ago. In this era when the threshold for obtaining information is relatively high, many people in the military fan community are a little wild. ?Although there may not be channels to obtain completely true information, a lot of things can indeed be analyzed and inferred through some small traces. Coupled with the fact that he spoke so eloquently, many people around him did believe him. Im stupid? Is there still such a thing? Then there wont be any problems with this plane, right? ??The person who just spoke instantly became the focus of attention in a small area, which made him feel like he was being praised by the stars. ?At this time, I have to say something more: I dont know. The previous second-class accident was said to be an engine failure. Let me tell you, this aero engine is a long-standing problem for China..." ??The young man holding the camera in his hand frowned slightly. He was just looking up at the new plane that suddenly appeared. When he remembered to open the lens cover and lift the camera, he could only take a picture of the plane''s anus, which made him a little unhappy. Secondly, the half-full bottle of water next to him who kept chattering away made him feel a little noisy. ?The man was still talking to the people around him: "I''m not talking nonsense. When I copied the J-7, because my relationship with Lao Maozi broke down, I didn''t get all the technical information. The copied turbojet 7 and the improved turbojet 13 had a lot of problems. Just two days ago. The thing is, Hainan Airlines in Qiong Province crashed two J-8Bs at one time due to engine failure, which is definitely a high accident rate. " The turbojet 14 on the J-8C borrows a lot of the design of the turbojet 13, and it feels... not very reliable. What he said was so mysterious that it was difficult to tell whether it was true or not. Many people know about the accident at Lingshui Airport a few days ago, but not many details have been leaked out, so being fooled by him, coupled with the embellishing of the news by the people around him, is like the airplane that just performed. It really looks like it could crash at any time... ? ? ? "Stop talking nonsense!" ?The young man finally couldn''t bear it anymore and retorted loudly to those around him: Dont you all watch the news? A week ago, the Xinwen Broadcast broadcast a special feature on Institute 601. There were many test flight scenes in it, indicating that the problem with this aircraft should have been solved by that time. Are you...Teacher Xi Boyang? What he didnt expect was that someone in the crowd recognized his identity. I have read your work and interview in Aviation Knowledge Magazine. Obviously, this is a fan of his. In fact, although Xi Boyang is only a college student who has not yet graduated, he has been contributing articles to major military magazines for two or three years thanks to his good photography skills and, of course, the equipment and travel support provided by the factory directors father. Many classic photography works were created by him. ?The other party was slapped directly in the face, and naturally he couldn''t lose face. But just when he was about to retort, the familiar roar sounded again. Everyones eyes turned to the sky again. ?That J-8C is back. ?Obviously, the low-altitude pass just now was just the appetizer, and now is the main meal. The aircraft performed a crisp 450 roll flight almost directly above the runway of Xiangzhou Airport, and then connected to an extremely tight small-radius circle in a horizontal space. The smooth flight attracted bursts of cheers from the audience on the ground. . Since the large delta-wing aircraft itself has a small moment of inertia, and the flap part that provides the rolling moment has been specially redesigned by Chang Haonan, the improved J-8C has a huge improvement in roll rate. As for the stability of the aircraft, it is related to the thrust-to-weight ratio and lift coefficient. It has also benefited a lot from the two major changes in the past few months. Although this is still a relatively weak part of the performance, for the audience of the air show, the scene that just happened was already very shocking. ? People at the scene have more or less seen the J-6 of the aerobatic team perform similar actions, but the size of the J-8C is almost three times the size of the former, and it is naturally not at the same level in terms of momentum. ? And someone like Xi Boyang, who is a little more professional, can even see some clues while pressing the shutter crazily at the sky. ??? Taking advantage of the sound of the engine to decrease slightly, he excitedly analyzed the people around him: Look, this aircraft didnt even lose altitude when doing this set of maneuvers, which shows that the power level is quite good! Ive seen the old J-8 fly before. It doesnt roll so fast at all, and it loses altitude very badly when circling. After half a circle, it has to change to level flight and climb. In this era of print media, Xi Boyang''s name appears frequently in major military magazines, and he is still relatively well-known. In addition, the flight performance just confirmed this judgment, so more and more people began to believe his statement. As for the other person who was still talking nonsense before, when the J-8C just flew back, he had already disappeared into the crowd. (End of this chapter) Chapter 137 Amazing skills Chapter 137 Shocking the Four with His Skills Due to a real lack of experience in organizing such a large-scale exhibition, the exhibition organizers did not arrange any explainers in the huge venue. They relied entirely on paper materials produced by exhibitors and the knowledge reserves of the visitors themselves. But military fans are not the only ones who come to visit the air show. ??Some are organized collectively by work units, others live nearby and come to join in the fun, and there are also reporters like Lao Liu who need to travel to collect materials for work, etc. ??If these people don''t explain it, they can basically just watch the fun. So the crowd around Xi Boyang became more and more dense, and even quickly formed a quite obvious gathering area. ?However, the main purpose of his trip is still photography, and the engine noise when the plane takes off makes it impossible to hear other things. ?? So after the J-8C completed the circling action just now, Xi Boyang raised the camera again and rotated the zoom ring on the lens at the same time. In the era of film cameras, photographers could not check the shooting results in real time, but based on past experience, he knew that he should have obtained several good panoramic photos, and the next step was to capture some details. This time, the No. 04 prototype was obviously accelerating as it flew over. It is not often that you have your head shaved by a fighter jet flying at a height of less than 100 meters. Therefore, the J-8C, which rushed towards the venue like a tiger descending from a mountain, gave the audience a great sense of oppression. Many people even held their breath subconsciously. ?However, experienced people like Xi Boyang know that it is impossible for the performance plane to really fly over the convention and exhibition center. The crowds here are too dense, and if an accident occurs, the consequences will be immeasurable. I just dont know how this plane will change its flight path? ?His right index finger gently rested on the shutter. As if to answer the question in Xi Boyang''s mind, Prototype No. 04 suddenly made a lever movement, and the attitude of the entire aircraft changed from horizontal flight to vertical upward almost instantly. At the same time, the roar of the two engines became more and more deafening. People can even see the high-temperature gas behind the aircraft''s tail nozzle, as well as circles of dazzling Mach rings. Are you going to make...a cobra? ??When the attitude of the aircraft changed, many people immediately thought of this super maneuver named by Pugachev. But as a second-generation aircraft, this seems a bit outrageous. No, its not super maneuvering, this is a single aircraft climbing at a high angle! And the aircraft is still accelerating! ? Xi Boyangs voice was completely drowned out by the roar of the engine and the cheers around him. But the plane was still accelerating while flying vertically upward, which everyone could see. Not everyone understands what this means In fact, before this, the Chinese Air Force had not equipped an aircraft with an actual thrust-to-weight ratio exceeding 1. The paper thrust-to-weight ratio of the specially improved J-6 aircraft can be close to 1, but for an aircraft to take to the sky, it must be equipped with a pilot and aviation fuel, so the actual thrust-to-weight ratio is lower. ??The first mass-produced fighter jet capable of accelerating in vertical climb should be the F15. The single-seat versions of the F16, MiG-29 and Su-27 can also do this. As a "quasi" third-generation fighter, the Mirage 2000 is not good at power. The Harrier fighter''s vertical takeoff and landing relies on ground reflection airflow, and its thrust-to-weight ratio in flight has not exceeded 1. So, behind those four third-generation aircraft...it seems to be this J-8C. However, even if you dont know the twists and turns, it doesnt matter. This large-angle climb followed by a 360 rotation on a vertical plane is visually shocking enough, and it is actually an important part of the era of machine gun combat. tactics. If the pilot is not absolutely confident in the performance of the aircraft, the pilot will not complete such a maneuver at low altitude. Here I go, the climb rate of this plane just now... was a bit exaggerated. ??The first person to recognize Zi Boyang''s identity just now held a telescope in his hand and couldn''t help but sigh. The other person next to me seemed to know more. "Not only the climb rate, but also the wing surface response of this aircraft is very agile. It is not at the same level as the J-7 and J-8 I have seen before." There is also the engine. From the beginning of the performance to now, even just through the sound, you can hear that the aircrafts engine thrust has been changing. Such frequent changes in the throttle valve position indicate that the reliability of the power is very high. Then the person who first said there was a second-class accident in Haojing was all nonsense? Probably, otherwise it has only been three months from August to now, and it would be difficult to even complete the fault analysis, let alone improve the engine... ?While the two people were discussing each other, Xi Boyang had already used up his first roll of film. While he opened the film compartment as quickly as possible, took out a new film from the bag and put it in, he recalled the details he had just seen through the lens. ?After changing the film, he immediately adjusted the optical zoom ratio in a targeted manner, focusing on a few parts that he had not seen clearly just now. Sure enough The wing of this aircraft is different from the old J-8B! It uses leading edge slats! The engine...there is no visible change in the engine, but the part connecting the fuselage and the tail nozzle is also different from before. In the gap between the two performances, Xi Boyang''s voice was transmitted to the ears of the people around him. This aircraft is very different from the previous J-8B, and it has nothing to do with Grumman! This is... completely our own, a new aircraft! When Xi Boyang finally calmed down, he realized that the film he had planned to use for the day had been taken in just ten minutes. Just as he lowered his head and regretted his impulsiveness just now, and was thinking about whether to break through the crowd and go back to the hotel room to get new film, there was some commotion in the direction of the air show center near the airport. ?Due to the dark crowd, Xi Boyang couldn''t see clearly what was happening over there. But the cheers of the crowd soon gave the answer. ??The J-8C just landed on the runway of Xiangzhou Airport after the flight show! Xi Boyang suddenly remembered that he had just seen a somewhat unexpected open space in the exhibition area of ??China Aviation Industry. Obviously, this has been arranged long ago. Just as he speculated, soon, a trailer towed the No. 04 prototype that had just landed away from the end of the runway. The on-site security personnel pulled up two human walls, allowing the tractor and the aircraft to pass through the middle, and finally stopped at the empty space. ?Two staff members wearing the uniforms of China Aviation Technology Company appeared immediately and tore open the stuck part of the sign in front. ? Xi Boyang, who had already taken a good position, was the first to see the big words written on the first line of the display board J-8C fighter jet and the turbojet 14 engine it uses. "Um?" This way of writing obviously means that the exhibit is not just one aircraft. He raised his head again, and then noticed something tightly wrapped next to him. The two people just walked over and lifted up the rainproof cloth on the surface. An aerospace engine was presented in front of everyone. line (End of this chapter) Chapter 138 Chain reaction caused by turbojet 14 (Part 1) Chapter 138 The chain reaction caused by turbojet 14 (Part 1) In fact, this is not the new turbojet 14 actually installed on the No. 04 prototype, but an old engine put on a new casing. Specially designed to be displayed at air shows for people to see. ??Its not that Im afraid of leaksafter all, you cant see what the core structures of the high-pressure compressor and turbine look like from the outside. ??Moreover, if aviation design can be copied at a glance, then Chang Haonan may not get the chance to show off his skills from the beginning. Our country has a physical version of the Soviet Union''s last turbojet R29-300. The initial target of the J-10 was to imitate the turbojet 15. If it was so easy to copy, it would have been copied a long time ago. ?Mainly because Factory 410 has built a total of 6 new engines so far, all of which are installed on three prototypes... It''s just that no one knows this secret except Chang Haonan and a few other people. So, when the "true face" of the Turbojet 14 was revealed from under the rainproof cloth, there was still a sound of admiration or cheers all around. In the 1990s, it was not very common to display a real aircraft engine like this even at foreign air shows. This is an unprecedented first time in China. ? It is even the first time for many people to see what a single axial flow turbojet engine looks like. ?Looking at the densely packed and complex pipelines on the surface of the casing and the neatly arranged layers of low-pressure compressor blades, everyone felt basically confused. ?Although I cant understand it, its so complicated, so precise, and I love it In short, if there were not security personnel with live ammunition watching, I am afraid someone would have rushed up to hug and lick me on the spot. As a decent person, Xi Boyang did not keep staring at the Taiwan Airlines, but quickly paid attention to the specific content on the display board. Then, he showed a shocked expression of "Are you kidding me?" The maximum afterburner thrust is 7500kg, the intermediate thrust is 4930kg The total boost ratio is greater than 18? The total engine weight is less than 1100kg? The first turning period is not less than 150h? Holy shitis this data serious? Why did I remember that I said before that the design target of the turbojet 14 was only 7 tons of thrust? ??If mood can be embodied through symbols, Xi Boyang feels that his head should be full of question marks now. Teacher Xi, this data is... very impressive? ?Someone next to me couldn''t help but ask. After all, not everyone understands aviation power so deeply. More than just awesome Xi Boyang subconsciously wanted to lift the camera, but then remembered that the film had run out, so he had no choice but to put it down again, and explained to the person next to him: If you dont look at the inherent shortcomings of turbojet engines such as fuel consumption and lifespan, the performance is almost the same as the F404 turbofan engine newly developed by the Americans in the 1980s. ?After his comparison, more people can understand. F404is the one used on F18? Thats right. So if you calculate it this way, the performance of this J-8C is about the same as that of the F18? Thats not an analogybut in short, in terms of aviation development level, it is not an exaggeration to say that it has jumped 20 years compared to the past. Not far from Xi Boyang, two people with media badges were looking at the fighter jet that had just stopped in front of them with complicated expressions. Brother Liu, I knew you were joking with me last night, so No, I didnt ?Brother Liu really wanted to say that I was really just guessing, and I had no intention of hiding anything. But even he himself found it unconvincing. Forget it, dont be stunned, hurry up and take pictures, I will teach you how to write a manuscript when you get back. By the way, remember to check the condition of the American F18. I thought I heard someone say it is similar to this. Since most tourists were crowded near the China Aviation Industry exhibition area, and more people were still stuck on the road, other parts of the venue seemed a bit deserted. Inside the Russian exhibitor''s exhibition hall, a tall, slender, gray-haired middle-aged man looked at the dense crowd not far away and asked the people next to him: The plane that was performing the flight just now is the new model that Artyom and the others reported before, right? It is Mikhail Pogosyan who is gradually taking over the baton of Sukhoi Company. Yes, they named it J-8C. It sounds like it is an improved version of a simple enlarged version of the MiG-21. No, Alyosha, there is no trace of the MiG-21 on that plane. Pogosian shook his head: As for the naming... I think its just a cover-up during the research and development process, just like our original Figure 22M. You mean they are trying to deceive Americans? There is no technical connection between Figure 22M and Figure 22. The name was changed just to avoid treaty restrictions. ?Obviously in Bogosian''s opinion, this aircraft called J-8C is probably similar. "I can''t say for sure, but I know that about ten years ago, the Chinese were tricked by the Americans on this plane before they came to find us." Pogosian shrugged. ? ?The man called Alyosha is actually named Alexei Bulatov. He is not actually Sukhoi Company, but a senior engineer of the Rulika Design Bureau. ?He lowered his head and hesitated for a moment, as if he was recalling the flight performance just now: Misha, after our performance is over, I plan to go to the Chinese exhibition area to take a look. The vertical maneuverability of the aircraft just now, especially the climb rate, is very good. I think it is at least better than the MiG-23ML. It may be due to the replacement of new power. The turbojet 13 that China has widely used in the past is still essentially an improved version of the R11F-300. Although Bulatov is a senior engineer at Ryulika, he does not know much about the products of his peer and competitor Tumansky Design Bureau. Strange, it is clear where the limits of this engine are. Hmmnew aircraft, new engines, why have they suddenly become enlightened in the past year ?Pogosian rubbed his brow in confusion: "It seems that Mikhail Petrovich is right. Fortunately, we did not delay it any longer. After the funds are in place, the new Su-27 improved version must be put on the agenda." Compared to this, I think finding new customers is the most important thing. Judging from Chinas development speed, they may not buy complete machines from you soon. ??Bratov takes a longer-term view. You are right, but fortunately not all countries are like them... ??? Or Im adding more updates for flankerrs reward. ? (End of this chapter) Chapter 139 Chain reaction caused by turbojet 14 (middle) Chapter 139 The chain reaction caused by turbojet 14 (Part 2) The stunning appearance of the J-8C undoubtedly gave the first Xiangzhou Airlines a good start. Coupled with the subsequent flight demonstrations of the J-7MG and two Flankers, the topic on the first day was immediately full. ?Especially because of Chang Haonan''s arrangement, the J-8C seemed to be even comparable to the Su-27 in terms of vertical maneuverability, which made almost all visitors to the exhibition extremely excited. ??Even not that many people paid attention to the traffic jam that lasted until three o''clock that afternoon. ??The entire China Aviation Industry exhibition area was crowded with people because of this, and the momentum was not inferior to that of Sukhoi. ? Even "regular" exhibits such as Qiang 5M, JJ 7 and Zhi 9 have also received many opportunities to appear on the scene. In short, he has a very long face. When the exhibition was closed in the evening, Chang Haonan noticed that the corners of the air show directors lips were grinning almost to the base of his ears. This is a real political achievement! ??Also smiling were the comrades in Chinese aviation technology. ?Although holding an air show has many considerations such as showing the level of the aviation industry to the outside world, boosting morale internally, and promoting the development of tourism, fundamentally speaking, it is still to make doing business more convenient. ? Under normal circumstances, a relatively large order cannot be decided on the spot like buying a car. The contract details can only be finalized after many rounds of negotiations. At best, an air show can be used as an official announcement opportunity. However, some small and medium-sized orders are still relatively random, and sometimes they are not much more advanced than shopping for clothes. ?At this time, the role of the signboard comes into play. ? And the J-8C that has attracted so much attention today is undoubtedly this brand. Even though most countries wouldnt really want to buy an interceptor in the mid-1990s, the J-8Cs flight performance was indeed spectacular. The performance of the two flankers at the back was equally impressive. So, the J-7MG that took off in the middle was also noticed by the exhibitors from many countries. 611 also put in the same effort into arranging the performance content. Since it is impossible to compare with the J-8C and Su-27 in terms of overall performance, lets focus on highlighting its agility as a light fighter. ??Anyway, really wealthy people are not the target customers of this aircraft. Based on similar logic, most people who look at the J-8C and J-7MG will also take a look at other models that are only arranged for ground display. ?Especially the Z-9 brought by Bingcheng, everyone can tell at a glance that it is a dolphin. Compared to the French''s habit of speaking loudly, China''s offer is much kinder. After some operations, several small countries have indeed expressed their intention to purchase, and some countries have even contacted China Aviation Technology Company through formal channels. After closing the exhibition, Chang Haonan first took someone to confirm the preservation of his exhibits, and then prepared to go back to his room to rest. He was also looking forward to how the news today would report the opening of the air show. But as soon as he reached the door of the hotel, he was stopped by people from the aviation technology company. The other party said that a buffet dinner had been arranged in the banquet hall on the top floor of the hotel. ?Chang Haonan originally wanted to refuse. Its not that Im dissatisfied with the format of the dinner, its mainly because its the first day of the air show, and theres always a feeling of opening champagne at half time ??But before he could figure out how to evade it, a woman who looked a little familiar to him stood up from the aviation department: I heard from General Master Lu, Chang Gong, you are still a doctor from Beijing Hang University, right? "Well" ?This question made Chang Haonan hesitate for a moment, but in the end he chose to answer truthfully: Actually, I have to wait until next year to start my PhD As a result, as expected, several other people on the other side received shocked expressions. The woman who just asked the question looked normal and continued to introduce herself: Let me meet you, my name is Yang Huimei, and I am also a graduate tutor at Beijing Hang University. Then he took the initiative to shake hands with Chang Haonan. Although the latter is still an undergraduate in theory, he obviously cannot be treated as an ordinary student. ?After hearing Yang Huimei''s name, Chang Haonan finally remembered that he should have seen her in the 624th Institute. ??Its just that I had been communicating with Lu Yuying at that time, so I didnt have any direct dealings with her. And he had heard this name before is Liu Chenchens chosen graduate tutor. It seems that this person does have a certain status in the field of industrial trade. It turns out to be Teacher Yang, hello, hello. Since Yang Huimei has already revealed her identity as a teacher in her school, Chang Haonan also knows that if she refuses again, it will seem a bit awkward: Teacher Yang, should I go back to the room and change clothes first, and then go to the banquet hall? ?Yang Huimei smiled and nodded: Of course, our arrangement is to start at half past seven. Then you can just go to the hotel staff with your work badge and they will take you in. In addition, please invite your office and other members of Factory 112 to come with you, so I wont notify you one by one. Her family understands her own affairs. After more than half a month of hard work, she is no longer the pure layman who could only distinguish the model of an airplane by its pointed or flat nose. ?Furthermore, the aviation technology company also sent specialized technical personnel. ?So Yang Huimei knows very well that todays wave of traffic was largely brought about by the flight show at the beginning. People from Shengjing must be invited. "no problem." ?Chang Haonan nodded. In this era when material conditions are not particularly rich, being invited to have dinner in such a high-end hotel banquet hall can be regarded as a benefit to a large extent, and most people will not refuse. Im relatively familiar with the people at Factory 112. Let me inform them. You just need to inform the comrades in the factory. After entering the elevator, Yao Mengna, who had been standing half a step behind Chang Haonan, suggested. ?It was also at this time that the former realized that there was no WeChat or DingTalk at this time, and he could only notify each room by knocking on the door or making a phone call. The workload was really not small. There is no way. Although I have been reborn for several months, the subconscious mind of the previous ten years is still very strong and cannot be completely wiped out so easily. Thats my trouble. When Chang Haonan returned to the room, it was almost 7 pm. He took a shower as quickly as possible and then turned on the TV. Today is Tuesday, November 5th, the 25th day of the ninth month of the lunar calendar. Welcome to the Xinwen Lianbo program. First of all, I will introduce you to the main content of todays program..." Dear viewers, todays Xinwen Lianbo program will take about 55 minutes Fortunately, I didnt miss the opening of Xinwen Lianbo. As he expected, the first news was the opening of the Xiangzhou Air Show. ?The first scene after cutting out of the studio is the J-8C performing a flight performance. Compared with the few inconsistent scenes in the previous 601 special program, this time, CCTV did not spare the camera at all. Except for the initial clearance and the final landing part, the flight show, which lasted for nearly 10 minutes, was released without any landing. He then took photos of the entire China Aviation Industry Exhibition Area and introduced the development process of the 83rd Project. In particular, it was emphasized that the J-8C that performed the flight performance today was completely designed by my country, fully adopted my country''s independent technology, and fully adopted my country''s aviation standards. Three perfections. The inner meaning is self-explanatory. (End of this chapter) Chapter 140 Chain reaction caused by turbojet 14 (Part 2) Chapter 140 The chain reaction caused by turbojet 14 (Part 2) ?Because he had read everything related to the Xiangzhou Air Show, Chang Haonan arrived at the banquet hall at almost half past seven. ?As a result, as soon as he walked to the door, he found that there was a bigger TV, and the news network was also playing on it... Obviously, everyone has the same idea as him. Especially the representatives of the air show organizer, the smiles on their faces could no longer be hidden. ?There are not many opportunities to listen to CCTV and brag about your own rainbow fart. What''s more, the blowing lasted nearly half an hour this time. I dont know if it was arranged in advance or what, but when Chang Haonan walked into the door of the banquet hall, the entire banquet hall gradually burst into applause. At first, only a few people took the lead, but soon other voices were completely drowned out. Chang Haonan was still a little embarrassed. This is not to be pretentious, I really rarely experience such a scene. Mainly at the 601 Institute, he basically attended technical meetings, and there was rarely such warm applause. After the applause subsided a little, Lu Yuying walked out of the crowd holding a half glass of champagne. "Comrade Xiao Chang, as well as other comrades present and participating in the August 3rd Project, congratulate you and thank your J-8C for successfully conducting this wonderful flight performance, which gave our Chinese aviation industry a sigh of relief and also won the Enough attention! After finishing speaking, he raised his glass to signal, and then drank it down in one gulp. Considering that this was only the first day of the air show, and there was still work to do later, this was the only toasting session. ?Chang Haonan has a good capacity for drinking, but he doesnt like drinking, so he only drank half a glass, and then replaced it with white grape juice of a similar color. ?Shortly after the dinner officially started, Lu Yuying wandered next to Chang Haonan again: "Xiao Chang, to be honest, this air show is thanks to your J-8C. If we had followed the original plan, we would have been crushed by Lao Maozi at home." ?This kind of thing is the same as sports competitions. No one wants to be completely defeated by others at home. With the current situation, although it is difficult to say that they have defeated Sukhoi, it is like the national football team playing Brazil. If you don''t lose, you will win. So Lu Yuyings excitement is definitely justified. Its not just us, the J-7MG also performed very well, fully demonstrating the dexterity of the new aircraft. At this time of celebration, it is natural to compliment each other: Especially for countries that have used the old MiG-21 or J-7M before, it should be easy to see the performance improvement of this new aircraft. Chang Haonan is not completely bragging. In the original timeline, the J-7MG was the main model exported by China for a long time before Xiaolong. Yes, many old MiG-21 users are very interested in this model and even contacted comrades from the aviation technology company through official channels. ?Lu Yuying smiled and nodded: In addition, we also exhibited a scaled-down model of the J-7F this time, and many countries asked about the detailed performance, as well as the first flight and delivery schedule. You are also responsible for this. Has someone placed an order today? Chang Haonan asked somewhat unexpectedly. During the day, he spent half the time fishing in the backstage of the exhibition, and the other half pretending to be a tourist visiting the exhibition areas of other countries, so he did not pay much attention to the situation in the Chinese exhibition area. However, in the original timeline, the first Zhuhai Air Show did not achieve anything in terms of export sales. Strictly speaking not yet, but it will be soon. "According to my observation, Sri Lanka and Namibia should take action soon." As soon as Lu Yuying finished speaking, another person next to him also intervened: Namibia is indeed a promising customer, and their representatives also contacted us and expressed interest in the Z-9 and Y-12 models. Chang Haonan, who heard the voice, turned around and saw an unfamiliar face. ?But since he mentioned straight 9 and lucky 12, he must have come from Bingcheng. Li Xianzhe, deputy chief designer of the 602 Institute. ?The other party took the initiative to introduce himself, then put down the plate in his hand and continued: Originally, for this air show, the Y-12 only brought a model, and the Z-9 was not scheduled to fly. We were all prepared to participate. Im also very grateful to you two for your performance, which finally brought us some potential customers. Chang Haonan also had some impressions after talking about this. As a young country that was only born in 1990, Namibia does not have a strong sense of presence. But it is also due to its late independence that its overall domestic situation is relatively stable. Relying on its rich mineral resources, its economic development is quite good in Africa. ? And Lu Yuying and Li Xianzhe had no problem with their vision. Namibia later became a loyal user of Chinese weapons, and most of the main equipment of its army, navy and air force came from China. ?However, there is definitely no way to say these words directly, so Chang Haonan can only give a hint: "Actually, the potential markets in many third world countries are quite large, such as Namibia. I have read in books before that they have quite abundant reserves of jewelry-grade diamonds, as well as resources such as agate, copper and tin. It is a new country and has the need to build independent national defense capabilities. Li Xianzhe also nodded in agreement: Their representatives were indeed very targeted. They also asked us whether we have an armed helicopter developed based on the Z-9, one that has both combat capabilities and the ability to transport people. After chatting for a while about the export of weapons, Lu Yuying suddenly changed the subject: Speaking of this, I have always wanted to ask during the day, are the performance data of the Turbojet 14 on your exhibition board real? Are there any false standards? Is there a false mark...there must be one. Chang Haonan pondered for a moment: The thrust data of the engine is accurate, but the total boost ratio and first flip cycle are marked a little lower, and the weight is also written dozens of kilograms more. Oh, thats pretty good too "etc?" ?? Lu Yuying didnt react until he was halfway through speaking: Oh, reverse virtual mark, right? Ashamed. Chang Haonan showed a shy smile: It is essential to be on guard against others. After all, it is a public display, so some data should be written a little more conservatively. Lu Yuying, who finally recovered from the shock, was speechless. ?These days, everyone is eager to raise the data, but Chang Haonan directly did the reverse operation. ?However, even after the reverse virtual standard, according to the performance data on that exhibition board, the Turbojet 14 is definitely a very powerful medium-thrust turbojet. Damn it, let him pretend. Lu Yuying, who didnt know how to evaluate it, had to start talking about business again: How much do you think the performance can be improved if the turbojet 14 is installed on the J-7F? (End of this chapter) Chapter 141 When robbing people, you can’t use martial ethics Chapter 141: When robbing people, you cant use martial ethics As the design work of the J-7F comes to an end, the specific performance indicators of this aircraft are gradually being determined. Overall quite surprising. If I have to be critical, the only shortcoming is the power. The turbojet 13FII is indeed a usable model, but it is still somewhat unsightly when installed on the J-7F. On the one hand, the fuel consumption of the turbojet 13FII is relatively high, and a fuel tank in the original lower jaw part is occupied by the air inlet, which makes the already poor range even worse. ???The original J-7 is just a day fighter that relies heavily on ground guidance. Its short range is barely acceptable, and it cannot do without the search range of ground radar anyway. ??However, the improved J-7F has strong independent combat capabilities, but its short legs are more restrictive. On the other hand, with the sudden addition of fire control radar, a large power consumer, the power supply capacity of the engine has also become relatively tight. ? So after seeing the dreamy performance data of the Turbojet 14 during the day today, Lu Yuyings first thought was Got to find a way to fit it on my plane! The size and weight of the Turbojet 14 are smaller than those of the Turbojet 13, so there is no problem in installing it. Chang Haonan thought for a moment and then replied: "But the new engine has a larger flow rate and a boost ratio that has nearly doubled, so the original air inlet design may need to be adjusted. And because the weight of the rear part has become lighter by almost 100 kilograms, it will have to be redesigned. Adjust the center of gravity of the entire machine. "Hmm..." Lu Yuying lowered his head, flicked the goblet in his hand, and at the same time calculated the current project progress and the time points to be grasped in his mind: Its not difficult to adjust the center of gravity. After all, its getting lighter, not heavier. Just add some fuel to the tail. But according to the design method you proposed to integrate the air intake and the cone front body, if we want to change the design of the air intake, I am afraid that it will affect the whole body, and the workload will be huge. When we received the Pakistani delegation before, we had promised to complete the first flight before June next year. I am worried... Hearing this, Chang Haonan also frowned slightly. ?There are only eight months left, and even considering the production of prototypes, it doesnt seem to be particularly stressful. At what stage has the J-7F project progressed now? The design of the original plan has basically been completed, and a J-7B aircraft has been found to prepare for modification. It was originally expected to start at the end of this month. "That" ?Chang Haonan was about to speak, but was interrupted by Lu Yuying: "If it were just a general engine model change, there should be enough time, but after all, the core engines of the turbojet 14 and the turbojet 13 are completely different. Our 611 Institute has never been exposed to this model before and knows nothing about its air intake characteristics. I know. The matching of the engine and the intake duct is a quite complex issue. If you simply insert a new engine into it, the performance will be affected at best, and the failure rate of the engine will be greatly increased at worst. Of course, this is also related to the design level of the inlet and the stable working range of the engine. The more positive examples are MiG-23 and F16. The former can be matched with AL21 and R29-300 engines, and the latter can be matched with F100 and F110 engines. The typical example on the opposite side is the TF30 above the F14. The performance of this engine on the F111 fighter-bomber was not satisfactory, but after it was installed on the F14, it was disgusting. Coupled with the variable-sweep wing design with explosive reliability, there were only 632 F14s in service. The number of crashes in his career was as high as 144, making him the second generation widow maker after the F104. So Lu Yuyings concerns are not unreasonable. It would be great if there was someone who is familiar with both the turbojet 14 and the various aspects of the J-7Fs performance to help. After saying the last sentence, Chang Haonan finally understood. ?Good guy, were you waiting for me? What does it mean to be a person who is familiar with both the turbojet 14 and all aspects of the J-7Fs performance? ?Just give me your ID number and thats it. "Mr. Lu, your speech art is really superb." Chang Haonan''s tone made it difficult to tell whether he was really expressing his appreciation. Hey, Im not just talking nonsense. Lu Yuyings expression on the opposite side did not change. Ever since he failed to rob someone last time, he realized that when doing this kind of thing, being thick-skinned is king: In June, I went to see Lao Du, and he said that you had already started to participate in the August 3rd Project. After all, it had to be on a first-come, first-served basis, so we couldnt say anything else. But now, I think the August 3rd Project should be almost over... Obviously, he has figured it all out. In fact, this is exactly what Chang Haonan himself is considering. The first stage of Project 11 is that Factory 112 uses large parts produced by the Gagarin Aircraft Factory for final assembly of the aircraft, and Institute 601 translates and transforms the design data provided by the Sukhoi Design Bureau. This process does not require Chang Haonan''s help, so he is indeed planning to participate in the No. 10 Project after putting down the work related to the 83rd Project. Another reason is that due to problems with the underlying flight control architecture, the J-8C cannot, or does not have time to achieve integrated flight and thrust control. Its aircraft control and engine control are still performed separately. The J-10 has a real fly-by-wire flight control from the beginning, or a digital fly-by-wire flight control. Although it has not yet realized the integration of flight thrust, it has the potential in this regard, and Chang Haonan has plenty of time. The J-7F project is obviously a good transitional step. It shouldnt be a problem for me to help. ?Chang Haonans decisiveness in agreeing surprised even Lu Yuying: As for the specific form of cooperation, it will be determined between 611 Institute and Academician Du. If nothing else happens, it should still be carried out in the form of project application. Then its settled. The two of them clinked their glasses. Li Xianzhe, who was left standing next to him, watched the whole process almost dumbfounded. ? After he learned that Chang Haonan was not an employee of 601 Institute, but a person from Beijing Hang University, it was not that he had not thought about asking him for help. But for one thing, Bingcheng really cant come up with any decent projects to attract people. ?The Y-12 is just an inconspicuous five-ton small transport aircraft, and the Y-9 has no clear follow-up modification plan. ?Even if there is one, it is unlikely to be a big project. Secondly, he didnt expect that someone would directly grab someone at the dinner party. Not decent at all. ?After Chang Haonan put down the wine glass in his hand, Li Xianzhe began to consider whether he should probe the other party''s tone first. ? He ??knows that Bingcheng has an ambitious 10-ton tri-service general-purpose helicopter plan. Although it can be said that the plan is not yet complete, it can still be used to draw pie. ??If the other party is interested, you can consider trying to get it after you go back. Hafei Automobile has been selling very well in the past two years, and there is still some idle funds... The more Li Xianzhe thought about it, the more he felt it was worth a try. ?However, when he turned his attention to Chang Haonan again, he found that there was another person standing in front of him. "ah?" (End of this chapter) Chapter 142 New frigate (Part 1) Chapter 142 New Frigate (Part 1) The appearance of Turbojet 14 as a separate exhibit during the air show was quite unexpected. Not to mention that it also provides quite detailed and exaggerated performance data. ? And the J-8Cs dazzling performance in the flight show can also prove from the side that the numbers on the display board are at least not completely fabricated. Therefore, in addition to aviation industry insiders like Lu Yuying, it has also attracted the attention of many comrades in other systems. ??Although the Xiangzhou Air Show has Aerospace Expo in its name, it may be to expand the audience, so the specific business of exhibitors is not strictly limited. ??? In short, many units that have nothing to do with aerospace have also sent people to help, and they all bear the name of aerospace technology group. This has created the miracle of the Aviation Technology Group not only selling aircraft, but also selling guns, artillery and tanks. ?Of course, as the Xiangzhou Air Show grew in scale, this situation became less and less common, and everyone put on their real vests and went out to do activities. ?The Shipbuilding Industry 701 Research Institute where Lin Qing works is one of the brother units that came to help. ??It is impossible for something like a naval ship, even the smallest speedboat, to be transported to the convention and exhibition center. In addition, they also knew that they were supporting actors, so they just brought a batch of models with rough workmanship and set up a few indoor booths without thinking about how they could really do any business here. As for the staff who came with them, they basically did whatever they wanted, except for taking turns leaving two people to watch the booth to prevent things from being stolen. ?So Lin Qing himself watched the entire J-8C flight show and witnessed the moment when the true face of the Turbojet 14 was revealed from under the rainproof cloth. But it is different from the other onlookers who are just watching the fun. ?At that moment, he felt that his trip was well worth it. Because in the past year or two, Lin Qing has been responsible for planning the technical route of the new generation of guided missile frigates After entering the 1990s, with the development of the national economy, military expenditures gradually became more abundant, and naval equipment procurement funds were no longer limited to buying a frigate a year as in the past. Naturally, there was some pursuit of new equipment. At that time, the navy''s latest frigate was the 053H2G, called the Jiangwei class by NATO. Although it was equipped with both anti-ship and anti-aircraft missiles, the configuration of 6 YJ-8A and 6 Hongqi 61 can only be said to solve some problems, especially in the rear. Its performance is unparalleled. As for anti-submarine Excuse me, what is anti-submarine? Moreover, this model is based on the 053H2 designed in the early 1980s, and the potential for further development is already very small. In the past two years, 701 Institute designed an export-type frigate for the Chinese Navy, which verified that the limit of this hull is basically 2400 tons, it is no longer possible to meet the future needs of the Navy. A completely new frigate design is imperative. From the very beginning, the technical plans for the new frigate were divided into two routes. The difference mainly lies in power and the choice of anti-aircraft weapons. ??One is to further enlarge the hull based on the 053H2G, continue to use the Pierstik 16PA6V series diesel engine as power, and the weapon system is directly copied from the 052 type destroyer, with a full load displacement of about 3800-4000 tons. The other is more thorough. It refers to the design plan provided by Russia to our country in the early 1990s. It uses gas turbines as power and 4 sets of "Long Glove" short-range air defense missiles (actually Sea-based Doyle) for point air defense, with a full load displacement. About 4200-4500 tons. It is almost at the same level as the Type 052 destroyer. ?Both designs have their own pros and cons. The technical risk of the first option is relatively low. Most of the systems on the ship are mature technologies that our country has mastered, but the combat effectiveness and development potential are relatively low. In particular, France refused to transfer the technical data of the Pierstik diesel engine STC system, resulting in the low power of the domestic 16PA6V-280-STC diesel engine, which is only equivalent to the 12PA6V-280-STC originally produced in France. Four units are needed to provide sufficient power. motivation. The second option is undoubtedly better in performance and has greater potential. Full combustion power can bring inherently lower noise and faster speed. It has inherent advantages in anti-submarine warfare. 4 groups of 8 vertical launchers The air defense system is also much more reliable than an 8-unit Haihongqi 7. However, as a price, full-combustion power is bound to be inferior to diesel engines with lower idle fuel consumption in terms of extreme range. Moreover, the 30 sets of land-based Tor M1 anti-aircraft missiles introduced by China last year have just begun to be delivered. In order to digest and absorb relevant technologies and then develop corresponding The sea-based version will take at least a few years, during which time it is likely that external procurement of weapon systems will be required. Generally speaking, Lin Qing, as a designer of Party B, still prefers the second option. ?Engineers naturally hope that the plans coming out of their hands will be perfect. However, the good times did not last long. Not long after these two design plans were proposed, General Electric cut off the supply of LM2500 gas turbines. Even the original 113 ships were almost not built, and it was even less likely to come up with sufficient quantities for use. On the frigate. Almost at the same time, the aeroderivative fuel project based on Spey turbofan engine also came to an end. Originally I planned to walk on two legs, but now both legs are broken. The momentum for the gas turbine project was completely lost. ?Just before the Zhuhai Air Show, Lin Qing had almost given up on his original idea, prepared to choose a diesel power solution, and led his staff into the overall design stage. ??However, the turbojet 14 at the air show gave him hope again. During the day, Lin Qing had already asked insinuatingly that the team leader from Shengjing was the youngest-looking **** man named Chang Haonan. So after the dinner started, he came directly with a strong purpose. Comrade Chang Haonan? ?Seeing Chang Haonan end the conversation with Lu Yuying, Lin Qing hurriedly came to the former''s side. After all, he was asking for something from someone. Although the man in front of him seemed to be about the same age as his son, he still introduced himself in a very polite tone: Hello, I am Lin Qing, deputy chief engineer of the 701 Design Institute of Shipbuilding Industry. This is my ID and work badge. Uh...Hello, Comrade Lin Qing. Chang Haonan was a bit unresponsive to such an overly formal speech, and he never expected to meet someone from the shipbuilding industry system here: I dont know why you came to me... Oh, thats right, I saw the turbojet 14 engine you brought over during the day, so... I have a few questions that I dont know about, so why dont you ask me? Its not that Lin Qing just wanted to be arrogant. In fact, the question he wanted to ask was indeed a bit sensitive. If he didnt identify himself at the beginning, it would be difficult to continue the topic. ?Chang Haonan looked at the ID in front of him and verified the other party''s identity. He is indeed a big boss. Its okay, please. Also, just call me Xiao Chang. (End of this chapter) Chapter 143 New frigate (Part 2) Chapter 143 New Frigate (Part 2) This question may be a bit presumptuous, but is the design and manufacturing of the turbojet 14 completely completed domestically? Being polite as before, Lin Qing quickly returned to his straight-forward habit once he started discussing serious issues. The reason why Spey''s aero-engine modification is not going forward is ultimately because the Spey MK202 itself is a British engine. It will not do anything good to think about modifying the gas turbine before the aero-engine prototype is fully understood. result. If the design of the Turbojet 14 was entirely made by China''s own people, this problem would not exist. Of course. Chang Haonan nodded without hesitation: The original design of the compressor part was based on the R13F-300 and Spey MK202, but later it was discovered that the coordination between the high and low pressure compressors was very poor, and there were still hidden dangers after many modifications, so a comprehensive redesign was recently carried out. It has nothing to do with before. In fact, he has already been mentally prepared to face similar problems. On the one hand, this engine is indeed a bit exaggerated compared to Chinas past level of stumbling even in imitating aero engines. On the other hand, there are indeed many cases of using foreign designs and imported parts to make them domestically produced. In many cases, it is exposed when there is a problem with the product in the hands of users, or there is a sudden lack of parts supply after being sanctioned. There is no reason for Party A not to worry. In that case, is it possible to design a light ship gas turbine based on the turbojet 14-core engine? Lin Qing finally asked the question he wanted to know most. Aeronautical diversion is burning After talking about this, Chang Haonan finally realized that no wonder people from the Ship Research Institute were interested in aero-engines: Technically speaking, with the performance data of the turbojet 14, it should be no problem to change it to a power gas turbine of about 13 MW, but... I wonder if you can disclose your specific use? Chang Haonans understanding of naval equipment is mainly out of interest. In his impression, after the two Type 052 destroyers, the Navy seems to have not started construction of the next ship using gas turbines until the new century. ?Lin Qing hesitated for a moment. The two sides do not belong to the same system after all. ?However, considering that the confidentiality level of the other party should be sufficient, and if the turbojet 14 aero-derivative combustion plan is really to be adopted, there may be many opportunities for cooperation in the future, so I still speak truthfully: We are currently selecting a power source for the navys new generation of main battleships, and the ship installation target is a 4,000-ton frigate. After finishing speaking, perhaps because he was worried that this type of ship was not heavy enough, he drew another picture on the back: If the performance meets the requirements, destroyers with larger tonnage in the future may also use the same power. A 13-megawatt gas turbine is definitely not enough to be used on a destroyer. Im afraid 4 main engines would have to be piled on top of 6,000 tons. Chang Haonan replied with a smile: But if a 4,000-ton frigate uses a gas turbine, it should be about the same as the American Perry class? ?With his rich experience in pie-making and pie-eating in the past, he can naturally see that destroyers equipped with the same power are a big pie. But it doesnt matter. The 4,000-ton frigate obviously refers to 054/054A. Although he didn''t know much about the twists and turns in the development process of naval equipment, judging from the other party''s intention, this gas turbine solution should be the first choice. However, there was no reliable gas turbine model at this time in the previous life. That''s why it was switched to a diesel engine power solution. ? And more than 40 ships of this model had been built before his rebirth, so even if only this model is installed, there is absolutely no problem in terms of quantity. Lin Qing was not embarrassed after being exposed, and nodded simply: "Yes, the general idea is similar to Perry, a universal frigate that is relatively low-cost and can be built quickly." ? ? ? "But we may choose a larger aspect ratio than the Perry class, paying the price of some hull space. Higher speed. In that case, it shouldnt be a big problem. Chang Haonan briefly recalled the general data of the Perry class, and then answered very confidently: The Perry class has a displacement of 4,100 tons and is equipped with two low-power versions of LM2500, totaling 30 megawatts. Our two gas turbines can also reach approximately 26 megawatts. When paired with two diesel power generation auxiliary engines, the power is sufficient. Lin Qing''s eyes flashed with excitement. Although the young man in front of me seemed to be a bit too generous, after all, the turbojet 14 was already on display at the venue, and he seemed to have some understanding of marine power, so I really gave him one. An inexplicable sense of reliability. In this case, I wonder if you have any plans to carry out aviation modification and fuel injection? Or we can apply to the Shipbuilding Industry Corporation and conduct a public bidding. Now you should be the only one with this level of technology in the country. ??Now the new frigate program has reached a critical juncture, and it is about to decide on the specific technical route and enter the overall design stage. Generally speaking, after starting the overall design, there is no turning back. So Lin Qing was very anxious, very anxious. Even if Institute 606 cannot deliver a finished product immediately, he hopes that the other party can at least provide a sufficiently credible solution and relevant technical information, so that his client, the Naval Equipment Department, can believe in the feasibility of the gas turbine solution. Well...In fact, the 606th Institute has already begun work on aviation modification and combustion. Its just that the current improvement target is a gas turbine for power generation using natural gas as fuel, which is somewhat different from the power engine you need in terms of performance requirements and main combustion chamber structure. ? Similar to the situation in the previous life, after the installation and test flight of the Turbojet 14 came to an end, Yan Zhongcheng began to design the aeroderivative fuel plan. From the perspective of hindsight, this is actually a job he is better at. In the original timeline, the QD128 as an industrial gas turbine was far more successful than the turbojet 14 as an aeroengine. As for giving priority to power generation gas turbines rather than power gas turbines, it is basically industry inertia. Since about 20 years ago, our country has modified and produced industrial gas turbines such as WJ-6G, WP-6G and WZ-6G based on aero engines. They are used for self-generated power generation in oil fields, petrochemicals, posts and telecommunications and other departments. They are considered domestic gas turbines. Few market demands. In this era of serious fragmentation, as a person in the aviation system, Yan Zhongcheng did not know that Shipbuilding Industry was designing a gas turbine-powered frigate. Fortunately, Chang Haonan knows now. For Lin Qing, this was completely a surprise. So he immediately asked: If there are sufficient funds, Comrade Xiao Chang, can you estimate how long it will take to come up with a prototype that can be tested? (End of this chapter) Chapter 144 Possibility of air diversion (additional update for flankerr Chapter 144: The possibility of aviation modification (completed for flankerrs additional updates) Well...let me think about it. ?Chang Haonan did not immediately answer Lin Qings question. It is not difficult to modify a gas turbine for power generation under the premise of fully mastering the design of the core aircraft engine. Industrial gas turbines have almost no requirements on volume and weight, and natural gas in this era is very cheap. Most users are also large natural gas producers such as oil fields. The higher the fuel consumption, the higher the fuel consumption. Therefore, the performance trade-off is mainly based on power, compared with aero engines. orientation is very close. So while switching fuel from jet fuel to natural gas may seem like a big change, it actually requires only a few changes, namely those required to switch from liquid fuel to gas. But the power gas turbine is different. On the one hand, its performance trade-off is mainly based on thermal efficiency. After all, the fuel that can be carried on board is limited. The higher the thermal efficiency, the longer the endurance time. The operating conditions need to be optimized first. On the other hand, marine fuel is mainly light diesel, which has much poorer fluidity than aviation kerosene, and is more troublesome than using natural gas. In addition, Chang Haonan will soon be involved in the improvement of the J-7F and the No. 10 project, and most of the specific design work is expected to be completed by the 606 Institute alone. In short, it is difficult to achieve the efficiency achieved when optimizing the turbojet 14. After careful consideration, Chang Haonan finally spoke again: There are two main ideas for aeroderivative combustion of dual-rotor turbojet engines, and the main differences are in the air intake mechanism. "The first is to remove the exhaust nozzle, use the dual-rotor structure as the gas generator of the gas turbine, and then equip it with a matching power turbine; the second is to remove the entire low-pressure component and redesign the new low-pressure compressor and low-pressure compressor Turbine, using a new low-pressure turbine to drive a new low-pressure compressor and directly drive the load, thus eliminating the need for a power turbine. " If you are rushing to a certain time point and are in urgent need of a design plan or prototype, I think Institute 606 can first use the first idea to come up with an early model for you to conduct overall technical verification. "This time should be very fast, about half a year, or no more than a year at most, but it will definitely be worse in terms of fuel economy. We will use the second idea to upgrade and improve it later. Anyway, even the overall design of your frigate is It hasnt started yet, but I can definitely catch up, how about it? Lin Qing, who heard the news, couldnt believe it was true: Can it really be completed in one year... in one year? ? Judging from his slightly trembling tone, this question is obviously not questioning Chang Haonan''s ability. The latter smiled and nodded: "The foundation of the turbojet 14 engine is very good, especially since it uses a more advanced annular combustion chamber instead of a simpler annular combustion chamber from the beginning. The fuel atomization is through a pneumatic atomization fuel nozzle and a venturi tube. The two-stage cyclone cup with a sleeve structure can take advantage of the strong shear generated by the venturi tube pre-filming and the double cyclone to make the atomization, evaporation and blending processes stronger. " "So if the requirements for fuel economy can be relaxed, the overall changes will not be very large. In addition, it is a medium-sized engine. The design is very compact, and there is no need to spend too much energy to reduce the size of the gas engine. The volume and workload are not huge, and one year is enough. That would be great, that would be great Lin Qing, who was overjoyed, quickly picked up the cup and took a sip of wine before she managed to prevent herself from losing her composure due to overexcitement: As long as gas turbine power is available, the rest will be small problems, all small problems Oh, by the way, Comrade Xiao Chang, you only talked about the design part before. What about production? Do you need to import foreign parts or raw materials during the production process? Chang Haonan took a few seconds to recall what he saw when he visited Factory 410. "If I have to say, some imported equipment needs to be used in the manufacturing and testing process, but the parts and materials are all produced by us. Therefore, although we are not sure what the final allocation price will be, the cost is definitely acceptable. control, and can save valuable foreign exchange. ??He knew very well the meaning of Lin Qing''s question just now, so he emphasized the last two sentences. . In 1996, the countrys foreign exchange reserves were only US$110 billion, not long after the trade deficit phase ended. National production means low cost. It doesnt matter even if the local currency value of the transfer price is more expensive than the import based on the exchange rate. ?Whether you are willing to admit it or not, in this era, currencies such as the RMB and the US dollar and the British pound are indeed not in the same status at all. Sure enough, after hearing this answer, Lin Qing put down the wine glass and held Chang Haonan''s hand with both hands: Comrade Xiao Chang, you are simply our savior! Just like every aircraft design institute hopes that its products will be used as the main equipment of the Air Force, the Naval Ship Research Institute also hopes that its ships will become the flagship model of the Navy. Of course, in this field, 701 is the only one with almost no external competition. But as a model chief engineer, you always have to have dreams. Who doesnt want to see the ships he designed spread across the three major fleets, sailing across the oceans under the flag of the Peoples Navy? To achieve this, the first condition is that the number of buildings cannot be too small. A model like the 052, which built two ships but ended hastily, can only be used as a star ship and cannot become a backbone force. The construction quantity is obviously closely related to the cost. Under the same conditions, the cost of construction and use of gas turbines is definitely higher than that of diesel engines. However, many key components of the Pierstik diesel engine still need to be imported from France. If the gas turbine can be fully domestically produced, the situation will be different. The local currency is more expensive if it is more expensive. But the import quota in military equipment funds is limited. If it is used here, it will be cut off a little there. ?The money saved on imported diesel engine parts can be exchanged for a few anti-submarine helicopters, or regional air defense missiles, supersonic anti-ship missiles and other things that the navy most urgently needs. "It doesn''t matter." Chang Haonan could not bear the sudden enthusiasm and silently withdrew his hand: Although I am not a person in the ship system, both the air force and the navy are our peoples military. I am also very happy to be able to help our brother units. ?Lin Qing''s expression changed slightly, and then she solemnly thanked him. In fact, for a long time, there has been fragmentation among military industrial units of different systems. ?Especially during the 15 years from the mid-1970s to the early 1990s, some frictions inevitably occurred in the process of each company "making its own way", and the mutual exclusion was quite serious. ?Ten years ago, shipbuilding industry would not have come to help the air show co-organized by the aviation industry. By the mid-1990s, although the situation had improved a lot, like a family that had just had a quarrel, the lack of communication between them was still inevitable. Otherwise, Lin Qing would not know anything about the situation of Turbojet 14. If this cooperation between 701 Institute and 606 Institute can be achieved, it may be an opportunity to break the ice. However, Chief Engineer Lin, I hope you can promise me one thing, to Office 606. Just when the two were about to end their conversation, Chang Haonan remembered something he had seen in internal materials before: What happened with the Type 055 destroyer must never happen again. (End of this chapter) Chapter 145 Type 055 destroyer twenty years ago Chapter 145 The Type 055 Destroyer Twenty Years Ago The 055 Chang Haonan is talking about is naturally not the behemoth of later generations with a displacement of 12,800 tons and a 112-unit vertical launcher. It is an 8,000-ton general-purpose guided missile destroyer that was developed in the mid-1970s and is required to have air defense, anti-ship and anti-submarine capabilities at the same time. ability. According to the plan, the combat effectiveness of a single 055 ship should at least exceed the combined combat effectiveness of a 051 and a 053K. In this project, Chinas aviation industry system made the first attempt to install an aeroderivative gas turbine on a ship. In 1974, the Haojing 430 Factory improved a marine gas turbine with a maximum power of 16MW based on the turbojet 8 (power of the H-6), preparing to be used as the power plant of the Type 055 destroyer, and prototypes were carried out in the following years. Trial production and improvement. ?However, given the industrial level of our country at that time, even if this kind of gas engine was improved, it would still be difficult to be directly used on an 8,000-ton naval ship. It just so happens that the British Rolls-Royce Company is willing to sell Oprins TM3B gas turbine to my country. Although this model is not advanced in the world, its technical route is compared with the modified combustion model of turbojet 8. It is a relatively easy target for reference and learning for the Chinese gas turbine industry, which already has initial experience in development and production. Rolls-Royce has not been aggressive in technology transfer. But similar to many projects of that era, just when China and the UK had completed program selection and technical negotiations and were preparing to enter the substantive delivery process, General Electric, which was competing with the UK for the world''s ship gas turbine market, suddenly intervened. feet, indicating that it can provide the LM2500 gas turbine with more advanced performance. Our country finally accepted the solution provided by General Electric. ??The subsequent story is just as surprising as it is unexpected. LM2500 was completely out of reach for China back then, and it had no ability to digest and absorb it. Subsequently, Turbojet 8 was discontinued because it lost the technical reference for improvement, and the development route of self-developed gas turbines was forced to be suspended, resulting in the fact that the gas turbine power units of naval ships could only rely on the United States. Finally, with the latter''s ban, the source of China''s gas turbine power was completely cut off. If Chang Haonan had not made earth-shaking changes to the Turbojet 14, causing it to be put into use nearly ten years ahead of schedule, and coincidentally attracting Lin Qing''s attention, the Chinese Navy would have to wait until the next time a ship gets gas turbine power. The Type 052B destroyer that entered service in 2004 is No. 168. The GT25000/DA80 obtained from Ermao was an industrial gas turbine used for power generation or pipeline compression drive during the Soviet period. It was never considered for ship power. It can be said that it has no merit except that the maximum power reaches the standard. Even though it was later domestically produced The technological improvements are only barely usable, which is a huge regret in the original timeline. The reason why Chang Haonan mentioned the old 055 story to Lin Qing at this time was to emphasize that the turbojet 14 refueling project must not make the same mistake again. Hearing Chang Haonan''s words, Lin Qing showed a surprised expression at first, probably because he didn''t expect that he would be so familiar with the affairs of Old 055 at his age, and then quickly nodded heavily: Dont worry, Comrade Xiao Chang, times have changed. "As long as I am still in the position of chief model engineer, I must continue to push this project forward. Your aviation engine has proven itself on the aircraft, so I think what domestic gas turbines need most is trust and Chance." Although the heavy traffic jam during the day lasted until three o''clock in the afternoon, so that many foreign exhibitors who came from Haojiang missed the entire flight show, the incident caused a considerable sensation after all, and the news broadcast in the evening It also spent a lot of space on special reports, so by that night, everyone who should know the news already knew almost everything. ?However, compared to the cheers and various chain reactions in China, the performance of the J-8C caused much less waves abroad, especially in the West. For them, this is just a second-generation modified fighter after all, and it does not seem to have much value worthy of attention. It can also be said that at this time in 1996, the Western world did not feel that China could bring any threats or challenges to them from the bottom of their hearts. In the eyes of most Westerners, China at this time was basically just a market with great potential. ?Only some people who are engaged in the aviation industry or air force research, as well as reporters who originally struggled to know how to use enough space to report on this air show, are more concerned about this. ?While Chang Haonan was attending the dinner, the foreign exhibitors and reporters who had been traveling all day were finally sent back to their hotel in Haojiang. A man returned to the room, threw his backpack aside, and then leaned back on the bed. Obviously, the day just passed made him feel very tired. A few minutes later, the door was opened again, and another person walked in carrying the same style of equipment bag. Alex, how was your harvest today? The man lying on the bed pushed himself up with difficulty and asked his companion. Too bad, our car didnt take us to the air show until two oclock in the afternoon. Everything was already over, the opening ceremony, the air show, I missed all the parts worth writing in the report. ??The man named Alex was obviously in a state of panic. He was holding his brown-red curly hair with one hand and his face was full of annoyance: What about you, Allen? If you cant take any pictures, we may be criticized by the old woman in the editorial department again Thank God, my driver is very good and delivered me to my destination on time. Allen said, rubbing his sore legs: So I was lucky enough to take photos of the Chinese aircraft during the flight show, but my camera memory was full at the end, and I really regretted not bringing a traditional camera that uses film... It doesnt matter, as long as there is an air show, thats enough. ? Alex moved his arms and shoulders. He had been sitting in the back seat of the car, which was not spacious, for almost the whole day. He felt that his body was almost no longer his own: I heard on the way back that Chinas official news today was specially extended by twenty-five minutes to report on this air show, especially the air show after the opening ceremony. "Well...the photos and videos I took are all in the bag. You can take them out and take a look." Allen pointed to the equipment bag he had just placed on the ground: To be fair, as far as a second-generation fighter jet is concerned, the overall performance of that aircraft is quite good, and in some aspects it is not even weaker than the Russian Su-27. "So I think, for the Chinese people, this aircraft should be really important, just like... just like our mysterious fighter jet back then." The mysterious IIC is the second jet fighter designed by France after World War II. It is also the first fighter jet whose performance is no less than that of its American and Soviet counterparts. It has a milestone significance for the development of the French aviation industry after the war. Obviously, Chang Haonans little trick worked very well and successfully caused the French reporter to slightly misjudge the J-8Cs flight performance. (End of this chapter) Chapter 146 French reaction Chapter 146 French Reaction I dont know if Haojiang can receive TV signals from China. If possible, I think I would rather see what their own official video looks like. Alex did not touch Allen''s equipment bag, but took off his coat and put on his slippers, and turned on the TV in another corner of the room. ?The above happens to be a replay of the news broadcast that day. Thats right, thats it. ?He pointed at the screen and said. Even though he couldnt understand what the announcer was saying, Allen, who had been lying on the bed just now, got up and came to the TV. Damn, this angle is so good, the view is not blocked at all. Where did they set up the camera? ??The French journalist gave a high evaluation from a professional perspective. In fact, the CCTV filming location was on the roof of the hotel where Chang Haonan and the others stayed. ? Its just that this super-magic machine, which was later called Xiaobailou, has not been discovered by too many people at this time. At this point, Allen was stunned for a moment, and then quickly started the TV recorder placed below: This material is much better than what I shot, I have to record it ??The two of them had an exquisite division of labor during this trip. To put it simply, Allen was mainly responsible for photography, while Alex, who had served as a pilot in the French army, was responsible for writing. So the latters main focus at this time was on the TV screen. He was not able to witness the whole process of the flight performance live, so he urgently needs to find inspiration by watching the recording. How do you think this aircraft compares to our aircraft? After being silent for a long while, it was Allen who spoke first: Furthermore, since they have unveiled this model at the air show, they probably have export considerations. Will it compete with the Mirage 2000? ? Alex flew many models before retiring due to injury, so he naturally has a better say in this kind of thing. These issues mentioned by Allen are obviously a better entry point for them as a French media. ?At this time, the flight show replayed on TV was in the most exciting stage of vertical maneuvers, and Alex didn''t even hear the voices of his companions behind him clearly. It wasnt until after several consecutive actions were completed and the plane reaccelerated to accumulate energy that he finally turned around: "Sorry, Alan, I was too focused just now. What did you ask?" ??Allen had no choice but to repeat the question again. Compared to Mirage 3 and Mirage F1, it is definitely much stronger. As for Mirage 2000 Alex held the TV and thought for a while, as if he was recalling his past days on the plane: "Its agility is still a little worse than the Mirage 2000. Specifically, its instantaneous turning ability and roll rate are slightly weaker. However, the power level of this aircraft is very strong and impressive. The overall maneuverability should be improved. Stronger, if possible, I would like to see the engine model equipped on this aircraft. The engine of the Mirage 2000 is its most significant shortcoming. As an aircraft with a normal take-off weight of nearly 14 tons, which is basically the same level as the F16, it is equipped with an M53-P2 engine with only 9.5 tons of thrust, which is almost the same as that of all third-generation aircraft. The second worst. As for the issue of export sales... I am not very worried. Maneuverability is only one part of the overall performance of the aircraft. "We can''t see the radar model of this aircraft yet, but what is certain is that currently the Chinese do not have their own medium-range air-to-air missiles, let alone precision-guided weapons suitable for ground attacks. No country will want to pay for it. He used the money to purchase an interceptor aircraft that can only operate within visual range. Alex once flew a Mirage 2000 to participate in the Gulf War and has a very deep understanding of the importance of beyond visual range combat and the multi-purpose capabilities of aircraft. Most of the people who will buy Chinese or French equipment are small and medium-sized countries. It is impossible for them to have enough manpower and material resources to build special fleets with different functions. It is best to equip only one type of fighter jets and then cover everything from air interception to All missions including ground bombing. From this point of view, the Mirage 2000 is basically the replacement of the F16. Countries that are unable to buy the F16 for various reasons or are unwilling to buy the F16 will basically consider Dassault''s products, let alone the J-8C, even if the Su-27 The status of these two models will not be threatened in the short term. As a reporter, Allens understanding of this aspect is basically at the level of an enthusiast, so he will naturally agree with Alexs judgment. ?However, his rich experience in the media industry is unmatched by the latter: "But they are developing very fast. I still remember that it should be 1987, when China came to participate in the Paris Air Show for the first time, and I was also present at that time." To be honest, the things they brought there at that time were simplyalthough I dont want to comment like this, they were completely scrap metal, at most only at the level of around 1960. There is no need to worry too much. Maybe in 10 years they will be able to come up with a newer generation of fighter jets, but by that time we will definitely have been equipped with newer Rafale fighter jets, and we may even have fourth-generation aircraft like the F22. ??As a pilot who has flown Dassaults family of tanks from the Super Mystique to the Mirage 2000, Alex is obviously very confident about Frances future fighter development: In contrast, I feel that the helicopter they exhibited this time has a greater impact on us. Helicopter? Since he ran out of storage space halfway through the photoshoot, Allen spent almost half the afternoon fishing and did not visit the indoor exhibition hall of the aviation industry. ??On the contrary, Alex, who did not catch the exciting part, looked at all the exhibits on the Chinese side. A replica of the AS365 Dolphin, almost identical, with two turboshaft engines, a 4-blade rotor, and a ducted fan tail rotor He was carrying a camera that used film, so he couldn''t take out the photos immediately, so he had to describe it roughly in words: I hope the aerospace company did not forget to impose restrictions in the contract they signed with China. Otherwise, if they sell helicopters that are exactly the same as ours at a lower price, I am afraid it will have a big impact on the market. Actually...even if you sign a contract, its probably difficult to completely restrict it. Allen doesnt think there is any real restriction on something like a contract: Israel has also exported copies of our Super Mystery and Phantom 3 before, but in the end it was nothing. The arms trade does not need to comply with many commercial terms. Okay, you have a point. Alex shrugged: But you reminded me that I have already thought about what I want to write in this column. "oh?" Alan, who just lay back on the bed, suddenly sat up again: What do you want to write about? I would like to thank the short-sighted fools in the Ministry of Defense and Congress on behalf of the Chinese people. Because they destroyed the Mirage 4000 project, our air force will soon become the weakest among all major countries in the world! ?Alex suddenly danced and roared. "Uh... calm down first." Allen was frightened by his companion''s exaggerated movements and stepped back. At the same time, he thought of a way to comfort him as quickly as possible: Looking on the bright side, no matter what, there are still British people who can give us the bottom line. Unexpectedly, Alex became even more excited: You actually think that the UK can be considered a major country in the world? (End of this chapter) Chapter 147 The Russians are a little confused Chapter 147 The Russians are a little confused At the same time, in the hotel next to the exhibition center, representatives of several Russian exhibitors were also gathering together to watch the videos and pictures taken by TASS reporters. Other than China as the host, Russia is the most fully prepared for the Xiangzhou Air Show. A typical example is that they also discovered that the rooftop of this hotel was the best vantage point for filming air shows, especially flight performances, and therefore contributed sufficiently complete and clear image data. Correspondingly, their judgment of the current situation is much more reliable than the French. For a second-generation aircraft, the maneuverability, especially the vertical maneuverability, of this aircraft is truly amazing. Although Bogosian witnessed the whole process of the J-8C flight show on site, the exhibition area he was in at the time was obviously not as good as the view in Xiaobailou. What''s more, the camera also has the ability to zoom in and can capture some more details. s things. Look. ?Pogosyan paused the video tape being played in front of him, pointed at the wing of the aircraft that was circling in a small radius on the screen and said: This aircraft will open the leading edge slats to increase lift during low-speed flight. If I remember correctly, this structure did not exist on previous Huaxia models. "We can''t see clearly the specific design of the slat structure from the video, but from the flight attitude and the timing of activation, we can still infer that the trailing edge of this slat should be specially optimized for low-drag orientation, so the available speed range Its relatively large, and the speed of the aircraft here is at least 450km/h, but it can still work. ??As the head of the Sukhoi design department, Pogosian analyzed the J-8Cs wing improvement principles almost as soon as he saw the video. Not only does the previous model not exist, Artyom Trusov and I have been working at the Aircraft Research Institute in Shengjing for more than a year, helping them optimize the flight control of the digital fly-by-wire stabilization demonstrator aircraft. The speaker was none other than Alexander Mosin, who had previously reported the flight performance of the J-8C to Sukhoi: "The J-8C aircraft they displayed this time has made its first flight several years ago. In fact, there is no similar design on the previous verification aircraft of this model. This slat seems... as if it was suddenly Its the same design. I think this is unlikely. Since all the design work of the J-8IIACT has been completed, Trusov and Mosin, who have no work to do for the time being, were invited to Xiangzhou together: "Almost all China''s aircraft in the past were produced under license or copied from our models, and they did not have leading edge slat designs, so this should be a completely new attempt for them and will definitely require a lot of effort. Only test flight data can optimize such good results. "Mosin and I just happened to see that test flight. They must have been testing this new wing configuration for a long time. You must know that it was already September. If it was really a completely new design, it would be impossible. Putting it on the air show just two months after it was installed is too risky and completely inconsistent with the Chinese peoples style of doing things. "But" ??Mosin wanted to refute something, but was interrupted by Alexey Bulatov who had not spoken next to him: No matter how long it took them to use it, judging from the flight performance, the effect of this leading edge slat is quite good. However, no matter how excellent the aerodynamic design of the aircraft is, abundant power is the fundamental guarantee of maneuverability. So compared to the wing design, the power of this aircraft shocked me more. He said as he took out a bunch of photos from his bag, picked out one and handed it over. ??This was taken by him in the China exhibition area. After the exhibition closed, he found a photo studio and had it developed in a hurry. I made some notations in Russian on it so you can take a look at the performance of this engine. "According to the data on the exhibition board, the thrust-to-weight ratio of this engine has reached 6.82, and the total pressure ratio is even greater than 18, which shows that it has a very efficient compressor." "In addition, I also need to emphasize that China uses The thrust-to-weight ratio calculation method is similar to the French military standard. Compared with our and American standards, the calculation result will be lower. If we follow our calculation method, the thrust-to-weight ratio of this engine should exceed 7. " Isnt that... almost the same as the RD33 engine on the MiG-29? The representative of the Tupolev Design Bureau who was participating in the exhibition took the photo with a look of disbelief on his face and stared at it for a long time: A turbojet engine? Buratov nodded: If you only look at the thrust-to-weight ratio, it is like this. Although the common problem of turbojet engines is definitely still there, it is already very exaggerated. Is it possible that they have deliberately inflated the data? ?It is basically a common practice all over the world to add some water to the data during the export and display process. Moreover, the data written on the display board in the picture is indeed a bit too shocking. Buratov knocked on the table next to him: "You have just seen the performance of that aircraft, especially the vertical maneuvering part. At medium and low speeds, you directly pull the stick to climb at a large angle, and then complete a 360 turning flight. Without sufficient power, it would be impossible. Such a risky endeavor. So even if there is a certain false standard, the water content will not be very high. I even think that the data on this display board is probably true. It is not difficult to understand why when they introduced the Flanker production line, they required our approval to improve the aircraft during the production process. ?Pogo turned off the TV and sat back on the sofa next to him: Moreover, during the performance today, they played a little trick to make the maneuverability of this aircraft look as good as our Su-27, which stole a lot of the limelight. According to the schedule, we will have a flight show tomorrow. The previous plan was just to repeat the show this afternoon, but now we have to come up with something new. The Su-27/30 will definitely be Sukhoi''s main fighter for export revenue for a long time in the future. Pogosian''s design department is still counting on the export of aircraft to generate funds to continue to support the design of new models, so it is impossible for him to accept being replaced by one. The second-generation aircraft stole the attention. Do you have any ideas? ?After hearing this question, Sergei Lozko from the Ilyushin Design Bureau suddenly lit up his eyes: If it is just to demonstrate the maneuverability of the aircraft, then just leave the Su-30 on the ground and only let the single-seat model with better performance carry light fuel to perform. But I have a better idea. (End of this chapter) Chapter 148 Ilyushins ambition Chapter 148 Ilyushins Ambition Originally, Lozko and the Ilyushin Company team he led were not here to participate in the air show, but to protect the air show. They did not bring any models planned for the exhibition, only an Il-76 transport aircraft carrying aviation materials and personnel and an Il-78M tanker used to provide fuel to the exhibiting aircraft. ??But that doesnt mean Ilyushin doesnt want to do something at the air show. China purchased 14 IL-76 transport aircraft from Russia in two batches in the early 1990s to form a strategic transport fleet of the Air Force. But this transaction has nothing to do with Ilyushin Company. All 14 aircraft were delivered directly from the Russian armys active equipment. The plane was sold, but no money was made. In fact, at this time, the Russian Federation still has some concerns about exporting such a large transport aircraft with a take-off weight of 200 tons. But Ilyushin Company had no worries, or in other words, it was too late to worry. Seeing that Sukhoi and Mili (which designs and produces Mi 8/17/171 helicopters) were resurrected on the spot with the large orders signed with China, they not only restarted the development of new models, but even started to develop helicopters in Novosibirsk. The aircraft manufacturer has opened a new production line, and Ilyushin is also jealous. The main reason is that the problems they face are more troublesome than all other peers - As its absolute flagship product, the final assembly workshop of the IL-76 is not in Russia, but in Tashkent, Uzbekistan. In the past, everyone was from the same country. The design bureau was in Moscow and the manufacturing plant was in Tashkent. There was no problem. The right was to upgrade the industry in remote and backward areas. But its different now. First of all, after the disintegration of the alliance, the situation of several Stanton countries is much worse than that of Russia. If the assembly plant is allowed to continue to be abandoned, then the Tashkent plant will probably not be able to produce new Il-76s in another two years. Secondly, just earlier this year, Uzbekistan and NATO entered into a "Separate Partnership Plan", showing a tendency that worries Moscow. ?For insurance purposes, Ilyushin Company plans to build a new Il-76 final assembly line at the Voyager SP factory in Ulyanovsk to absorb workers from Tashkent. And this takes time and money. The best way is to find a customer, a big customer, and sell more than ten or twenty brand-new IL-76s. This way, we can retain the workers in Tashkent to buy time, and get enough funds to build new production lines. But there is a huge obstacle to this approach. IL76 was too successful. As a strategic transport aircraft, the Il-76''s take-off and landing requirements are almost as low as those of tactical transport aircraft, and it can even use non-paved runways. Simply put, it has the load capacity of C141 and the usage conditions and cost of C130. Hence, more than 850 were built. All other strategic transport aircraft models in the world combined do not reach this number. But now, after the disintegration of the Russian Air Force, there is no need for so many strategic transport aircraft. So the biggest opponent of Ilyushin Design Bureau today is itself before 1991. The only way is to promote new models. ?Now, Ilyushin Company finally sees an opportunity. The Il-78M is a large aerial tanker designed based on the Il-76 platform. Compared with the old model IL-78, its biggest feature is the redesign of almost the entire wing box structure and the elimination of the cargo door at the rear, which greatly increases the fuel capacity and also loses the cost of removing the oil storage tank. The guest transport aircraft has the ability to carry cargo. More importantly, it could not be modified from the IL-76 and was produced in very small numbers before the collapse of the Soviet Union. ?In the video of the flight show just shown, Lozcot specifically observed that the nose part of the J-8C was equipped with a non-retractable fuel pipe. Obviously, this shows that the Chinese Air Force has a need to expand the combat radius of fighter jets. During the Soviet period, the aerial tanker Figure 16N modified from the Figure 16 was also equipped. Therefore, Lozko knew very well that the limit of this model was less than 20 tons of oil. If the refueling area was slightly further away, the oil volume could easily drop to Below 10 tons, it basically only has symbolic aerial refueling capabilities. And the Ilyushin 78Ms maximum oil delivery capacity is 106 tons 85 tons even at a distance of 1,000 kilometers. Who can resist an air nanny with this capacity? In fact, what Lozko wants to sell to China is a deeply improved model of the IL-76, the IL-76MF. It is equipped with four PS90A engines of the same model as the Tu 214, the fuselage is lengthened by 6.6 meters, the maximum payload is increased from 48 tons to 60 tons, and it still has an astonishing range of up to 5200km at the maximum load. More importantly, its prototype completed its first flight last year, and it is by no means a piece of cake. Its a pity that I didnt bring it with me this time. Tell me what you think? ?Pogosyan turned and looked at Lozko behind him. We can divide the flight show into two parts. Lozko organized his words a little and said: First of all, the Su-27 alone will carry the minimum amount of fuel and conduct the first part of the flight performance. Then let our IL-78M tanker take off and refuel the Su-27 in the air at the air show. After the refueling is completed, we will perform the second part of the performance. Originally, neither the single-seat Su-27S nor the two-seat Su-27UB were designed with fuel pipes. The same applies to the previous aircraft named Su-30 but essentially just Su-27UB with a different livery. ??But this time at the Xiangzhou Air Show, Sukhoi brought two aircraft belonging to the Gromov Test Flight Institute, not the Russian Air Force They all happen to have the ability to receive oil in the air. Aerial refueling? The representative of the Tupolev Design Bureau next to him scratched his head: "What is there to perform? Although it is very difficult, I think most people may not be able to feel it." Of course Lozko couldnt clearly say that he was trying to demonstrate the performance of his own aircraft: As far as I know, the Chinese Air Force has only put into service the first aerial tanker modified from the Tu-16 last year. The number is small and the performance is not enough. So, whether it is for ordinary people in China, the Chinese military, or even aviation technicians, aerial refueling is a very new thing. Many people should have never seen such a scene in the past. Air shows are about one person having nothing but oneself, and having others has oneself is the best, so my method will definitely work very well. ?This explanation was perfect, and no one could think of a better way for a while, so they all agreed. Very good, then I will contact the air show organizer early tomorrow morning and make some changes to the afternoon performance schedule. Pogosian said as he took out a notebook from his pocket, wrote down the contents of Lozko''s proposal, and then raised his head again: Also, before the meeting ends, I have one more informal matter that I would like to hear your opinions on. (End of this chapter) Chapter 149 Sukhois ambition Chapter 149 Sukhois Ambition Although all Russian aviation companies actually participated in the Xiangzhou Air Show independently, both in terms of the size of the Sukhoi Group and Pogosyans own position in the group, he can be regarded as half "Leader" role. After all, in the past few years, Sukhoi has dealt with China the most and has the largest transaction volume. So as soon as these words came out, everyone who was already preparing to go back to rest turned their attention to Bogosian sitting on the sofa again. "I don''t know if you have noticed that at this air show, all the military industrial units participating in the China Airshow used the same name. I consulted the translator in the team and the official name should be China Aviation Technology Import and Export Co., Ltd. " After his reminder, everyone in the room began to seriously recall the Chinese staff they had met throughout the day. Mosin, who had the most leisure time all day, nodded first: It seems to be the case. Their staff all wear the same style of clothes, and the styles of work badges are also very similar. "So...their entire aviation industry system has a company dedicated to external affairs that is responsible for military trade and military technical cooperation?" It was Bulatov who reacted faster and captured what Bogosyan really wanted to express. Thats right, thats it. Seeing someone catch his words, the latter continued excitedly: I have to say that the Chinese people really have great ideas in doing business. Their aviation industry system basically copied our previous system, and they also underwent corporate restructuring later, but in actual operation, they still implemented the model of separation of factories and offices. "After experiencing the past few years, everyone should be able to understand that our research institutes and manufacturing plants, which used to be only responsible for aircraft design or production, are not good at commercialization, even if we put on the cloak of enterprises. If you fight on your own in the military trade market, you will often suffer losses. ??This last statement really resonated with most people in the room. Before the disintegration of the alliance, arms exports were the responsibility of a large professional department, the General Administration of Engineering of the Ministry of Foreign Trade. When a country submits an application for weapons procurement or assistance, the foreign affairs department will transfer it to the General Administration of Engineering for review and approval, and then negotiate with the State Planning Commission on detailed issues such as export prices and supply methods. The military production department only needs to manufacture and deliver weapons and equipment as required after receiving production tasks and allocations. But after 1991, these design bureaus and research institutes, which were originally responsible only for technical work under the Military Industrial Committee and the nine defense industry ministries, were thrown directly into the cruel international competition almost without preparation. ?Unsurprisingly, almost no one knows how to do business, how to negotiate, how to sign an agreement, how to deliver... ?The luckier ones, such as Miri Helicopter Plant Joint Stock Company and Sukhoi Aviation Group, can still make ends meet with their high-quality and low-priced flagship products. Those who are less fortunate, such as Yakovlev, Ilyushin and Kamov, are unable to find sales for their products. It is difficult to even pay daily necessities, let alone pay wages to employees. Misha is right. ??Lozko''s tone was a little lonely: The employees at the Ilyushin Design Bureau have not received full wages for several years. Comrade Yurasov almost searched for all the connections to barely keep the entire design team from disbanding. ?The person he mentioned is Andrei Vladimirovich Yurasov, the chief designer of Il-76 and Il-78, and the current head of Ilyushin. ?Others'' faces were somewhat gloomy. Although the most difficult time after the disintegration has passed, for these people who have been burdened with countless honors, just surviving is not enough. So, Comrade Bogotsang, what do you mean by the informal things you just mentioned? Finally someone broke the somewhat depressing atmosphere. I want to refer to the Chinese peoples approach, and these companies we are working on will jointly establish a company similar to the General Administration of Engineering, recruit professionals from those who were responsible for negotiating export prices in the past, and focus on the foreign trade business of aviation equipment. " Pogosian finally revealed his true purpose: "Of course, the mission of this company should be to provide consulting or services, and it will certainly not have the same management and decision-making power as the General Administration of Engineering." ? ? ? "In this way, we can at least concentrate our efforts on improving professionalism and bargaining in the negotiation process. We can also seize more opportunities in the global market and even conduct some bundled sales. For example, some countries may need both fighter jets and helicopters, so we can provide them with a package solution. After he finished speaking, the room suddenly fell into silence again. ?This proposal is too heavyweight and is closely related to everyone involved and the collective behind each person. Everyone needs some time to digest and think. ?Everyone knows that it is absolutely not the case that Bogosian would take the initiative to propose such a thing, at least it is not just because he wants to help his brothers with good intentions. Once the company he mentioned is established, it will monopolize the export of Russian aviation products to a large extent. Even though the people here are from technical backgrounds and dont know much about business, after years of hard work, they still understand the importance of channel construction. ? And the Sukhoi Group, which has the largest share and the most experience in foreign arms sales in the past, will definitely have a considerable say in it. It can even be used to exert influence on other companies in the same military industry. ?Your own company loses its independence, which of course is something no one wants to see. On the other hand, as Pogosyan said, the benefits of this model are also obvious. ?Its certainly uncomfortable to have channels in the hands of others, but if you dont have channels at all, its better than being suffocated to death with the goods in your hands. Looking at the uncertain faces of everyone in front of him, Bogosian naturally knew what everyone was thinking. ?He did not talk nonsense, but continued to speak straightforwardly: "Don''t worry, when the country is on the right track, such a company will definitely not be able to continue to exist independently. It will definitely be taken under federal ownership, or even become an independent department again, so there is no need to worry that it will grow bigger and in turn affect you. company." The meaning is very clearI, Bogosian, have done this because I have higher pursuits besides business and engineering technology. Dont worry that I will use this to let the Sukhoi Group control or annex other fraternal units. In fact, the inner balance of most people is already in a state of swing. People like Lozko who are already hungry are even more ready to agree, but are just embarrassed to be the first to speak. So as soon as this sentence came out, someone immediately borrowed Po Xias donkey: "In this case, I think this proposal is the best. Past experience also tells us that we still need to concentrate our efforts to achieve great things." After the first person agrees, there will be no psychological burden for others to follow: Although I cannot make the final decision on behalf of the company, I will convey the matter to Comrade Yurasov as it is, and I believe he will agree. Lozko stood up for the second time. I will hold a meeting immediately after I return and I am confident that this plan will be passed. The third person to express his position was the representative of Tupolev Company. "me too!" "agree!" Bogosian finally showed a satisfied smile when he saw this scene: Dont rush to make a decision. We are only having a preliminary discussion of intentions now. More specific cooperation details will have to wait until we return to China to discuss. Then, thats it for today. I wish everyone a good dream at night. (End of this chapter) Chapter 150 Fight the fire, the wings are icy! Chapter 150: Fighting the fire, the wings are frozen! ?Just as Russia was re-planning the flight show for the next day, Chang Haonan no longer had the energy to continue paying attention to the Xiangzhou Air Show. No one expected that Chang Haonan''s next work place would be neither the Shengjing 601 Institute, which still needed to finish the August 3rd Project, nor the Chengcheng 611 Institute, which had already extended an olive branch to him and was just waiting for project review and approval. So, let alone Bingcheng No. 602 who only chatted with him at the end of the dinner. Rather, it was the Nanzheng 182 Factory that had not even appeared at the air show. After the dinner on the first day of the air show, Chang Haonan, who was already lying on the bed and about to fall asleep, was suddenly awakened by a rapid ringing of the doorbell. The visitor is a local staff member from Xiangzhou, and should be the organizer of the air show. After confirming the identity of the person outside the door, Chang Haonan sleepily opened the door a crack. He was a little angry when he was woken up. "anything?" As a result, the other party''s words made him sleepless: Comrade Chang Haonan, there is a call from Nanzheng, saying that I have urgent matters to see you. Did you come from Nanzheng? ?Chang Haonan was stunned for a moment. He did not remember that he had any interactions with them there. Should I go down and answer the phone? The person outside the door shook his head: No, this call is confidential, its an internal call, so youd better change your clothes, were going to the Xiangzhou Municipal Party Committees Confidentiality Office. Okay, just wait for me. Nearly an hour later, Chang Haonan, who was pulled out of bed, finally rushed to the confidentiality office and contacted Du Yishan on the other end of the phone. Xiao Chang, the Science and Technology Commission has issued an urgent task. I need you to go with me to the Nanzheng 182 Factory. Factory 182...is Shaanxi Fei? When Chang Hao originally started working, Factory 182, like Factory 172, had become the aircraft manufacturer corresponding to the 606. Its presence in the field of aircraft design was quite weak, so it took him about a second to realize that it was the other party. Where are you talking about. Yes, Shaanfei. Du Yishan on the other side of the phone said in a serious tone: "Just this evening, a special model Y-8 aircraft that had just been refitted suddenly lost its pitch balance when it was preparing to land after a test flight. Although it did not cause a first-class accident due to the low altitude and the timely response of the crew, the aircraft was still affected. "Severe damage was caused, and it is initially suspected that the aircraft suffered icing on the wings." The technical capabilities of Factory 182 are relatively limited, so we have applied for foreign aid. We need our help to identify the specific causes of the accident and improve the aircraft. Before tomorrow morning, there will be a Boeing 737 landing at Xiangzhou Airport. You can take that plane to Nanzheng. We will talk about the rest after we arrive. Hearing this, Chang Haonan was also shocked. Yun-8''s wings were icy. In the original timeline, this was a long-standing problem that had plagued the Chinese Air Force for nearly 40 years, and it resulted in extremely heavy losses. For example, on June 3, 2006, an Air Police 200 early warning aircraft crashed while performing a mission. All 40 people on board, including the crew, died. 34 of them were senior engineers who were testing radar and electronic equipment. For China''s aviation industry, Developments in electronics have dealt a heavy blow. He even knew some of the victims. According to the investigation, although the cause of the accident was also non-technical factors such as overloading of the aircraft (a lot of additional test equipment was installed), the main reason was the instability of the pitch axis caused by ice on the wings. Obviously, the problems encountered by Nanzheng this time should be similar. Okay teacher, I understand. See you tomorrow. After hanging up the phone, Chang Haonan was in a daze. ? He ??is not sure whether the accident in 1996 existed in his previous life. After all, it was just a second-class accident with no casualties, and it may not be reported and publicized. ??But this is undoubtedly a chance for redemption Including the June 3 air crash, at least 4-5 Y-8s crashed due to the same or similar reasons in the first 20 years of the 21st century alone. Even if Chang Haonan has changed many things after his rebirth, at least in the next ten years or so, the People''s Air Force will not be able to completely eliminate this model. ? It will also be almost the only medium-sized special aircraft platform available in the aviation industry before the Tu-204/214 realizes localization. Therefore, if the problem of Y-8 wing icing can be completely solved now, a lot of unnecessary losses can be avoided. ?Those outstanding pilots and engineers can continue to shine in their jobs... This night, Chang Haonan suffered from insomnia. ?After getting on the Boeing 737, he finally rested for a while on the plane. Until I was woken up by the wheel touching the ground and the subsequent sound of brakes. After the plane stopped, Chang Haonan strode out of the cabin. The cold wind in early November blew on him, making him shiver involuntarily, and he suddenly woke up at the same time. "teacher." ?Du Yishan has been waiting beside the gangway for some time. ?After walking closer, Chang Haonan noticed that his eyes were bloodshot. He probably didn''t sleep all night last night. Come with me and go see the plane first. ?Teacher and student got into a jeep next to them, one on the left and the other on the right. After I called you yesterday, I led the comrades from Factory 182 to conduct an all-night data analysis, and we have basically clarified the cause of the accident. As a veteran of the aviation system, Du Yishan, despite his advanced age, still has strong abilities in these areas that require experience: Due to initial design issues, the Y-8 only used engine hot air for heating on the leading edges of the inlets, wing leading edges and engine guide blades, while only the tail leading edges, propellers and hub fairings were heated. Electric heating device. "When the aircraft was approaching landing, the environmental conditions were an atmospheric temperature of 2C, a humidity of 71%, and a temperature dew point difference of 4C. It happened to be in the most icing conditions. The horizontal tail of the aircraft quickly formed ice, but due to the operation 8 There is no convenient way to observe the condition of the tail, so when the pilot realizes that the horizontal tail condition is wrong, it is too late to turn on the electric heating de-icing device. " "According to our calculations and analysis, the supply of hot air to the engine is sufficient, so there will be basically no icing on the main wing and engine inlet. However, the problem of icing on the tail wing is more complicated, and the Y-8 modification progress is very fast. Its urgent that you use simulation methods to improve efficiency and minimize the number of aircraft for flight testing. ??Just as Du Yishan was introducing the situation to Chang Haonan, the jeep had already arrived in front of a large parking shed. There is a strange-looking plane parked inside, or rather lying on its side. ?Although the appearance is indeed that of the Yun-8 at first glance, the navigator cabin in the original nose part has been replaced by a bloated "big nose". This is a Y-8J maritime surveillance aircraft. In other words, it is a platform planned to be transformed into a transport 8J warning aircraft! (End of this chapter) Chapter 151 Yun-8s wing is icing, causing a big problem Chapter 151 Yun-8s wings are frozen, causing a big problem In 1996, our country spent a huge amount of US$66 million to purchase 8 sets of Soushui-2000MS radars from the United Kingdom. It was planned to be installed on the Y-8 platform and handed over to the naval aviation for use in searching for surface targets to guide fighter-bomber attacks. 7 launches anti-ship missiles to attack. In the end, a total of 4 Y8J maritime surveillance aircraft were produced. ?These four aircraft were also our countrys only space-based long-range detection capabilities at the turn of the century. Performance...can only be said to be unsatisfactory. But at least the problem of availability has been solved, and this kind of aircraft also has certain command capabilities, allowing our army to accumulate a lot of experience in the tactical arrangement and use support of real early warning aircraft in advance. Because the radar purchased from the UK has not yet arrived, the Y-8Y in front of Chang Haonan is actually just a platform model waiting to be modified. The main task at this stage is to conduct test flights in various environments to obtain sufficient flight data. At this time, the aircraft parked in the hangar had already suffered obvious damage. The improved nose radome and nose landing gear were almost in disfigurement due to the impact during landing. Fortunately, the cockpit and wing parts were relatively intact, so the crew members only suffered some injuries, and there is still the possibility of subsequent repairs. There are already many staff from Factory 182 inspecting the aircraft here. ?Seeing Du Yishan and Chang Haonan walk into the hangar, a burly middle-aged man walked up and said in Mandarin with a slight Hunan accent: Academician Du, we have restored and simulated the flight data during the landing process according to your analysis, and found that it is completely consistent with the actual situation. "In addition, we have just temporarily transferred a Y-8F from the assembly workshop, which can be used to cooperate with you in testing. The data on An-12 surveying and imitation and the design drawings of several subsequent improved models have also been prepared. Our 182 Factory has obtained it from us. From now on, no, everyone from General Manager Wang on down will obey your orders! ?Originally, Chang Haonan had no impression of the person in front of him, but he immediately reacted after hearing his accent. This is the chief designer of a series of future improved models of the Y8 platform, Liang Shaoxiu. Since Chief Engineer Xu Peilin, who was originally responsible for the Yun-8 prototype to Yun-8C, retired last year, the 182 Factory, which has relatively weak technical strength, can only take the lead at this time. Just when I was at my most desperate, I encountered such a fatal accident. At my age, Im almost the same as your Commander Xu. I can analyze problems well, but I cant keep up with young people in other aspects. Du Yishan waved his hand, and then gestured to Chang Haonan beside him: This is my student, Chang Haonan. I think the main work of this improvement should be completed by him. "this" ?Liang Shaoxiu looked at Chang Haonan, who was younger than himself, and hesitated for a moment. But soon he remembered that he had seen this name before: Ohthe one from 606 Institute that applied this year The design of the J-8C has not yet been finalized. After all, it is a confidential project and will not be promoted in a particularly public form. Therefore, Chang Haonan is now more well-known as the first person to complete advanced technological achievements. ?This kind of title has almost no influence outside, but it can be used as hard currency within the aviation system. Hello, Mr. Liang, its a pleasure to work with you and the comrades of Factory 182. ?After the experience of the August 3rd Project, Chang Haonan''s [management ability] has improved, and he has gradually become accustomed to dealing with similar scenes. He is no longer the small character in his previous life who was a little nervous even attending seminars. Hello, Comrade Chang Haonan, its great to have Academician Du and your help, thank you. "The time pressure we are facing now is very tight. The Yun-8J is developed on the basis of the fully air-tight Yun-8C. The improvements do not involve the wing part of the aircraft, so this accident is a serious issue for the entire Yun-8 model. A big problem." "We are about to deliver a batch of new models of Y-8F to Postal Aviation. If the hidden danger of icing on the wings cannot be properly solved, users may refuse to accept them. The export orders we are negotiating with Persia will also be affected. Influence." "Well... I can''t guarantee anything about time, but I will definitely achieve the fastest efficiency." Chang Haonan nodded: "How about we take a look at the design information first?" "Okay, follow me." ?Looking at Chang Haonan''s confident look, Liang Shaoxiu, who was originally anxious, also calmed down a lot. Actually, Chang Haonan knew the crux of the Y-8 wing icing problem. ??Its just that he has never come into contact with information related to Yun 8 in this life, so it is too inconsistent to directly confirm his chest... Simply put, the design of the de-icing system of the An-12/Yun-8 aircraft is not reasonable enough. ?Taking the horizontal stabilizer with the most serious ice problem as an example, it only has an electric heating de-icing system that is distributed on the entire horizontal tail surface and is evenly exposed to rain and dew. Moreover, this system only has one highest current mode available. ?In the Soviet Union, considering the climate conditions near the Arctic Circle, this design is still barely usable. Anyway, the temperature is low enough, and the current is high. ? Even so, the flight safety record of the An-10/An-12 is quite poor. In China, where the temperature is relatively high, if the heating system is turned on for a long time before it freezes, it will cause the insulating glue layer to heat up rapidly and carbonize, further causing a short circuit and burning through the tail skin. So the pilot must turn on the electric heating device only after confirming that there is a risk of ice forming on the horizontal tail, or even when ice has already begun to form. ?Even so, there are risks. Because the ice thickness at different parts of the wing is different, but the heating power of the deicing device is average. It is very likely that the ice has not been removed in some places and the insulation glue layer in some places has begun to be damaged. Of course, there are some experts who can rely on experience to prevent icing in advance by turning on the heating device for multiple short periods of time, but this obviously should not be a requirement for ordinary pilots. As for the main wing of the aircraft, as Du Yishan said before, due to the use of a more efficient aerothermal anti-icing system, there is really no need to worry about anti-icing capabilities. But it is definitely not without problems. ?Gas-thermal de-icing requires extracting high-temperature and high-pressure gas from the engine combustion chamber as a heat source, which will inevitably affect the power of the aircraft. Therefore, on the premise of meeting the de-icing capacity, the total amount of gas used should be reduced as much as possible to maintain engine performance. However, the design of the Yun 8 system also highlights the idea that great power can produce miracles You should know that aircraft are most likely to encounter wing ice during takeoff, landing, and low-altitude and low-speed flight. The engine also needs to output enough power, or be prepared to output enough power. At this time, if you pump out 10% of the high-temperature and high-pressure gas at a time to remove ice, how can the power be guaranteed? ?Moreover, the environment of low-altitude and low-speed flight is inherently complex, and artificially adding a high-speed airflow blowing on the wing surface will only further increase instability. ?All of this makes the Yun8s already poor low-speed performance even worse. By the way, Commander Liang. After walking out of the hangar, Chang Haonan suddenly stopped Liang Shaoxiu in front of him: It would be better to have an expert in meteorology to assist us, which would be much more efficient. Thank you brothers for your support. The best-selling selection will be posted tomorrow, with more updates! (End of this chapter) Chapter 152 Isn’t this better than the weather forecast? Chapter 152 Isnt this better than the weather forecast? Meteorology expert? ?Liang Shaoxiu was a little surprised by Chang Haonan''s request. The flight support department in the factory area will have some positions responsible for weather forecasting, but they can only be regarded as technical personnel at best and do not require relevant professional background. They can take up the post after short-term training. They definitely do not meet the requirements represented by the word "expert". . We may not be able to find anyone who meets your requirements in Nanzheng, but we can ask Jincheng University for help. They often guide us in weather forecasting. This is best. Chang Haonan nodded. At this time, the two of them had entered the data room next to them. All the information related to Yun 8 is stored here. Liang Shaoxiu said, looking at the rows of filing cabinets in front of him. As a transport aircraft that has been imitated since the 1970s, the various related design materials are naturally entirely on paper, and many of them are even original in Russian. Although under the promotion of Chang Haonan, 611 Institute, 601 Institute and 112 Factory have successively begun to try to digitally design and produce new models, the relevant experience and technology have not yet been promoted throughout the aviation industry. In addition, Factory 182 is relatively remote and has just changed its management. It is already short of manpower and has to deal with the design and manufacturing of two improved models of Yun 8F and Yun 8J at the same time. It is even more incapable of actively tracking the advanced experience of these brother units. This is not only a problem of Factory 182 itself, but also a situation faced by many third-tier construction units. ?Except for a few who were particularly successful, and some who were lucky enough to leave the third tier and move back to big cities, most third-tier factories had a difficult time in the 1980s and 1990s. Those like Factory 182 that were able to survive into the 1990s can be considered rare. Liang Shaoxiu and several engineers skillfully took down a thick stack of materials packed in bags from one of the shelves. Then the second pile, the third pile... Since what needs to be modified this time is not just the aerodynamic shape, but also involves structural changes inside the fuselage, although there are only two parts that need to be processed: the main wing and the horizontal tail, it is still the number of drawings Chang Haonan has handled. The most ever. Actually, from the time we started copying the An-12, we had some concerns about the Soviet-style de-icing device on board. Liang Shaoxiu, who was out of breath from the continuous carrying, quickly opened the file bag and said to Chang Haonan: But the conditions here at that time were really poor. Even if we had technical data and prototypes, we could hardly do mapping and imitation. We also had to take into account the gap in aviation manufacturing, and there was no time to make major changes to these parts. Although the Y-8 is a copy of the An-12, the two aircraft are actually even different in sizethe fuselage of the former is about 1 meter longer than the latter, in order to reduce the difficulty of the production and assembly process. What about the back? After all, there are so many improved models of the Y8, especially the Y8C which has an airtight cargo compartment. Are there not some remedial measures in this regard? ?Although Chang Haonan knew what the problem was with the Y-8 de-icing device, that was already the experience he gained on the majorly modified platform that would later be called the Y-9. As for what happened from the basic model of Y8 to the third type of Y8 platform, he didnt know much about it. "Of course." Liang Shaoxiu finally found the part about the wing de-icing device from the pile of drawings, and laid it out on the drawing board in front of the two of them. On the original An-12, a total of five icing warning devices were only installed on the left side of the nose and above the engine inlet. We later installed two cameras in front of the horizontal tail, allowing the mechanics to monitor them in real time through a monitor. Monitor the condition of the horizontal tail, and if ice is found, quickly turn on the electric heating device and retract the **** to abort the landing process, and then land again after the de-icing is completed. Icing on the horizontal tail not only means that the pitch stability becomes worse, but also when the main wings enlarge the flap angle during landing, the airflow will also have a downwash effect on the horizontal tail, causing the nose to press down sharply, which often means a dive crash at low altitudes. But this change requires the data cable to penetrate the cabin from the bottom, so only the Y8 basic model and Y8B models that use non-airtight cargo compartments can be installed..." "Well" ?Chang Haonan held his forehead helplessly. Sounds like a very green solution. Is it useful? There must be some. After all, the oldest batch of Y-8s had never heard of any accidents due to icing on the wings. But it certainly cannot continue like this. Furthermore, the main users of the Y-8J, as well as a considerable number of future Y-8 platform special aircraft, will be naval aviation, and the environment in which they perform their missions is even worse than that of the air force. HNA aircraft, even land-based HNA aircraft, often need to be redesigned. Well, its a bit crude indeed. Liang Shaoxiu also felt a little embarrassed after introducing the situation, and scratched his head in embarrassment: So on the Y-8F-400 currently being designed, our initial idea is to design three sets of electric heating systems with different powers for the horizontal tail. At that time, the pilot will decide which set of equipment to turn on based on the specific situation..." However, because of this accident, our improvements must be completed in advance so as not to delay the progress of the Yun-8J project and the delivery of orders for several future aircraft, so... I can only trouble Academician Du and you. After listening to the other party''s narrative, Chang Haonan thought for a while, then picked up a sharpened red and blue pencil from the table and came to the drawing board. An engineer next to him had the insight to lay a piece of white paper on top There is no blackboard or chalk in this room, so this is the only way. Theres nothing wrong with your idea, but I think its a bit too conventional. Chang Haonan drew a schematic diagram of the wing section on the paper in front of him as quickly as possible, then turned around and looked at the engineers of Factory 182 in front of him: "I have a more radical method, which can not only completely eliminate the hidden danger of wing icing from the root, but also greatly improve the take-off, landing and low-speed flight performance of the Y-8." ? ? ? "That is, by controlling the aircraft''s operating environment , the overall design and the flow field structure during flight, calculate and analyze the icing conditions on the wing surface, and then adjust the distribution of de-icing heat sources in a targeted manner based on the analysis results. " "Configure stronger electric heating devices or gas outlets in places that are more likely to freeze, and make the opposite change in places that are less likely to freeze. Use good steel on the blade, which can reduce high-temperature gas and The loss of electrical energy can also improve the actual effect of de-icing, and pilots do not have to worry about damaging the aircraft if they turn on the heating device in advance. " ?Chang Haonan added content to the schematic diagram he just drew while talking. ??Although he obviously has no talent for painting, he still made everyone understand his ideas through the combination of verbal descriptions. ??The dozen or so people standing opposite did not speak, but their eyes when looking at Chang Haonan changed somewhat ??If the idea of ??the person in front of you can really be realized, it will be equivalent to solving the two biggest shortcomings of existing models at once. You should know that although the An-12 and C130 appear to be the same level of aircraft, the performance of the former, especially the take-off and landing performance under heavy load conditions, is far weaker than that of its opponents. The Y8 is limited by the level of the domestic turboprop 6 engine, which is even worse than the An 12. This makes it difficult to compete with the American C130 and the French-German jointly developed C160 in the international market. But its all too good to be true. ?Especially the key step, predicting the ice formation on the wing surface, sounds like a fantasy. Just kidding, even a city''s weather forecast is not very reliable these days. It''s almost as accurate as direct divination. You actually said that you want to simulate the extremely complex icing process within the scale of an airplane wing? The atmosphere in the data room was silent for a few seconds. Finally, Liang Shaoxiu came to his senses first: So...you said you wanted to find a meteorologist just to do this? Yes, I need to model and simulate the typical weather conditions common to aircraft during flight, so some knowledge of meteorology is required. Chang Haonan nodded and replied. Is it really possible to make very accurate predictions with our current technical conditions? Soon, a second person asked the question that everyone was most concerned about. After all, this idea is a bit of a tightrope walk. Once you understand it, it''s okay. But if you get it out of hand, it will become good steel to use on the back of the knife. ??In case the heat source distribution is completely unrelated to the actual ice accumulation situation, it will even be inferior to the original stupid method. Comrade, dont panic. Chang Haonan smiled and raised his palm, making a downward movement: I will talk about my specific ideas later. Youd better prepare paper to take notes, because there is a lot of work that requires your participation. ?His confident posture and tone obviously affected other people. After a brief noise, a dozen engineers had already picked up their notebooks and raised their heads to look at the drawing board again. Wing icing can be divided into two independent processes. ?Seeing that everyone was ready, Chang Haonan immediately got to the point: First, supercooled droplets or ice crystals in the air adhere to the surface of the wing and flow. This is a fluid mechanics problem. The second is that the liquid droplets captured by the wall undergo a phase change and form flakes of ice accumulation on the surface of the wing. This is a thermodynamic problem. "Although strictly speaking, if these two processes are considered together, it will be an unsteady process, but in the calculation and simulation process, a quasi-steady calculation strategy can be used. That is, the air flow field and the water droplet flow field are only calculated There is a one-way coupling, and both flow fields are considered unchanged when performing phase change calculations." Based on this principle, the entire calculation process can be divided into the following steps. ?Chang Haonan wrote a big (1) on the white paper next to him. First, generate the computational mesh required for flow field solution on a clean geometry or icing geometry. Secondly, the flow control equation is used to simulate the flow around the aircraft, and data related to the movement and icing of water droplets, such as the velocity field, air shear stress at the wall, pressure gradient, and convection heat transfer coefficient, are obtained. "Then, based on the air flow field, the movement trajectory of the water droplets is solved to obtain the impact characteristics of the water droplets. Based on the air and water droplet flow fields, the ice thickness of each control unit on the wall is solved through the icing heat and mass transfer model. Finally, the ice thickness is used to calculate the new ice geometry. Of course, because we only need to consider the de-icing problem, the fourth step does not need to be done. "Based on the numerical simulation of icing, the numerical simulation of anti-icing needs to calculate the wall and water film temperatures with anti-icing heat flow input. At the same time, depending on the anti-icing method, the relationship between gas, liquid and solid also needs to be considered. Thermal coupling process between As the explanation progressed, more and more formulas were written by Chang Haonan. ??The eyes of Liang Shaoxiu and others across from him also gradually changed from curiosity at the beginning to confusion, and finally turned into shock and shock! They understood. Not only did I understand it, I even thought it made sense and was feasible! (End of this chapter) Chapter 153 Multibody dissipative particle dynamics Chapter 153 Multi-body Dissipative Particle Dynamics Sounds like... its really possible? If it can be done, then our aircraft will be very powerful... ?After the previous explanation, Liang Shaoxiu and others also abandoned their skeptical attitude. ?Of course, just because you understand something, doesnt mean you know how to do it. ?Just like answering questions in middle school, it is one thing to be able to understand the answers, but it is another thing to be able to do it yourself next time you encounter it. ?Most people with ordinary engineering backgrounds are not very proficient in mathematics and physical theory. From an objective reality perspective, even if there are people who can truly integrate scientific theory and engineering practice and make innovations and breakthroughs, it will be difficult to retain them given the conditions in Nanzheng. ??Its not that Nanzhengs geographical and climatic environment is not good, the key is the scientific research conditions. Who can survive if one thing is outstanding and the other is not available? So it is still necessary for Chang Haonan to complete the previous part of the model algorithm, and then the engineers of Factory 182 will complete the subsequent testing, analysis and parameter adjustment process with a large workload. Thats it, Commander Liang. After explaining his basic ideas, Chang Haonan took two steps forward and put the pencil back on the table: Help me find a few people who are skilled in computer graphics. It doesnt need to be too many, just four or five. Lets electronically design the main wing and horizontal tail first, so that we can do numerical simulations of related issues later. ?However, Liang Shaoxiu looked troubled when he heard this question: "This...I''ll try my best. Even including myself, I''m afraid not many people are proficient in computer graphics." Chang Haonan was dumbfounded for a moment, but he could understand it after thinking about it. Being proficient in using computers and being proficient in using computers to draw are, after all, two different concepts. As big as Institute 601, the digital design team only had twenty or thirty people when it was first established. Later, as Lin Shikuan and others failed to achieve results, this number even dropped a little bit to the seven that Chang Haonan and Yao Mengna had in the past. indivual. The entire computing center is deserted. ? It was not until digital design and manufacturing proved to be of great value in the improvement process of the J-8C that some people were sent back to Lin Shikuan. So far, they have only returned to the original level. ?For many older engineers, they may be able to learn to use computers, but it is difficult to make fundamental changes in their engineering thinking. The 182 Factory has a serious talent gap. Today''s main force is either too old or too young. In this era of great technological change, it will definitely encounter some difficulties. Its okay to be a little less skilled. Its just a way to learn some experience. In the field of aircraft design, I will definitely take this path in the future. But the candidate must at least ensure that the work is done seriously and meticulously. This kind of basic work must not go wrong, otherwise the whole thing may have to be overturned later. Although Factory 182 has a relatively weak technical foundation, its work efficiency is still worthy of recognition. Within a few days, according to Chang Haonan''s request, Professor Lin Guofan, who had long-term cooperation with them, was invited from Jincheng University. Even if an expert is invited from outside the aviation system and has long-term cooperation and is authorized to access classified military-related projects, it is impossible to just let him enter the data room that is almost being used as an office. So Chang Haonan met Lin Guofan in a conference room with relevant information. Hello, Professor Lin. The two people who met for the first time shook hands. I dont know who this is... ?Beside Lin Guofan, there was another woman who looked less than forty years old. I am Guofans lover, Zhu Lan, who is also a professor at Jincheng University and studies surface physics. I heard from him that your topic this time is related to my research direction, so I came here with the above application. Then, thank you both. The three of them quickly ended their simple greetings, and then Chang Haonan put the information on the table and spent about 20 minutes briefly introducing his thoughts on the prediction of wing ice accumulation. The two professors looked at each other, and finally Lin Guofan spoke first: Comrade Xiao Chang, you dont mind if I call you that. Chang Haonan shook his head slightly to indicate that it didnt matter. It does make sense in theory to calculate the phase transition through kinetic and thermodynamic means when the properties of supercooled liquid droplets or ice crystals and the parameters of the aircraft wing are known. Im afraid there will be some difficulties in implementing it. Compared to Liang Shaoxiu and others, Lin Guofan and Zhu Lan are much more proficient in this area, so they can immediately take into account many details that laymen do not know. When an aircraft encounters moist and cold air during high-speed flight, the first problem is the impact of droplets on rough solid surfaces. Although it is true that the VOF or LSM method can be used to calculate the wing surface after Euler grid or Cartesian grid processing, but for large deformation problems such as high-speed impact, the numerical simulation system cannot guarantee that it can be calculated on all grids. A well-posed interpolation function can be constructed. Even if this step is forcibly completed, when the grid is deformed, it is difficult to ensure that the deformed grid is not singular. " Not to mention that if you want to find a numerical solution to the N-S equation in this case, the amount of calculation is quite exaggerated. Even with supercomputing, it may take several years to complete. ??Lin Guofan finished a long paragraph, and Zhu Lan next to him helped her husband to smooth things over: Perhaps Comrade Xiao Chang has any new ideas on the problem of liquid-solid surface interaction? In this case, we can exchange research content. ?The atmosphere suddenly fell into an eerie silence for a moment. Chang Haonan, who was sitting diagonally across from the couple, did not react immediately. Comrade Xiao Chang? ?Zhu Lan asked softly again. Chang Haonan''s daze only lasted for a very brief moment before he recovered, making Zhu Lan even doubt whether he had seen it wrong just now. Oh, what Professor Zhu just said is right, I do have a new idea to calculate the surface interaction of liquid-solid high-speed impact. "ah?" ?This time it was Lin Guofan and Zhu Lan''s turn to be confused. ?Especially the latter. What she just said was just to make her husband''s rebuttal seem less blunt. She didn''t really think that Chang Haonan would have any in-depth research on surface physics. In the end, people really have it? Thinking of this, Zhu Lan couldn''t help but pay more attention to the young man in front of him, and his expression gradually became serious. Actually, Chang Haonan did not. He really almost overturned the car just now ??Although I have accumulated 260 scientific research points by completing several large projects in succession after my rebirth, people are always greedy. In addition, Chang Haonan has indeed completed a lot of projects by his own ability in the past few months without relying on the system, so he began to think about whether he could gather the wool of the system. ?After forming a closed-loop idea, if you want the system to provide more specific research methods, you need to spend scientific research points. If time is urgent and you want to get the answer directly, you will even have to spend 10 times the points. But before that, the system will make a judgment on Chang Haonan''s idea. If it is not feasible, it will directly prompt that a closed loop cannot be formed. If it is feasible, it will ask whether to spend scientific research points. And this free feature is actually priceless. Because it can at least determine the general research direction without going wrong. ??If the paid version system is a perfect tutor that responds to requests and provides guidance, then the free version system is a pure tutor who gives you a research direction and then no longer cares about you. But its better than nothing. So this time, Chang Haonan used this method to confirm that his thinking was correct, and then prepared to see if he could solve a problem that was not his area of ??expertise by himself and limited foreign aid. The result... ??Of course, he decisively spent 30 points to restart the plug-in, and then used a light cough to cover up the momentary abnormality that his brain showed when it received a huge amount of information. Then he spoke again: As Professor Lin just said, the VOF method and the LSM method are based on the assumption of fluid continuity, and their physical basis is the N-S equation. They do have shortcomings when dealing with the situation where supercooled droplets freeze after impact with solids. But we can completely change our thinking and use the multi-body dissipative particle dynamics method to conduct numerical simulation research on this problem based on Newtons mechanical equations and dissipation-fluctuation theorem. I dont know...what do you think, Professor Zhu? (End of this chapter) Chapter 154 Universal ice accumulation model Chapter 154 Universal ice accumulation model Multi-body dissipative particle dynamics ?Zhu Lan repeated the noun and raised her hand to straighten her hair. This is an unconscious action she does when she is thinking. As a professor of surface physics, Zhu Lan has naturally been exposed to computational simulations related to molecular dynamics very early. This naturally also includes dissipative particle dynamics (DPD), a numerical simulation method that has only been proposed in recent years to deal with mesoscopic particle motion. But what is this multi-body dissipative particle dynamics? The elementary particles in DPD are not originally single atoms or molecules in molecular dynamics, but coarse-grained particles that represent molecular groups. Since it eliminates the trouble of describing all molecules in molecular dynamics, the degree of freedom of the system is greatly reduced, and the amount of calculation is also reduced exponentially. It is very suitable for research at the mesoscopic scale or the macroscopic scale of a certain scale. ?However, this "certain scale" refers to 100nm in the field of molecular dynamics, and will not exceed the order of 1m at most. ??If multibody means to continue to expand the scale of research, then it means increasing the number of molecular groups that need to be studied, which is contrary to the original intention of establishing the DPD method... Unable to resolve her confusion, Zhu Lan finally decided to "not be ashamed to ask" - neither she nor Lin Guofan were from within the aviation industry system, so they naturally had no impression of the name Chang Haonan. So in their opinion, the person in front of them should be just a young engineer from Factory 182 who is mainly responsible for improving the deicing device of Yun 8. At least thats the case for now. Okay, is there any relationship between the multi-body dissipative particle dynamics you are talking about and the dissipative particle dynamics I am familiar with, and what is the difference? In fact, at this time, Chang Haonan had just sorted out the knowledge that suddenly poured into his mind. Regarding the basic principles of MDPD, he only knew about the basic principles of MDPD about two minutes earlier than Zhu Lan, who was sitting next to him. The biggest difference is that MDPD has transformed the state equation and obtained a new control equation based on it. "The conservative force in DPD is a purely repulsive force, and its size decreases as the distance increases. Particles controlled by such a force will continue to move away from each other and eventually fill the entire calculation space, forming a mass of density, temperature and other substances with uniform thermodynamic properties. After speaking, Chang Haonan took the pen and paper from the side and wrote down the state equation of DPD. ?p=kT+A^2 The reason for doing this is not only to make it easier for Lin Guofan and Zhu Lan to understand, but also to deepen Chang Haonan''s own understanding and to sort out the theoretical principles of MDPD. "The highest-order term of the fluid density in this equation of state is a quadratic term, and the equation of state used to describe the internal pressure of the liquid needs to contain the cubic term of the fluid density. Therefore, this form of state equation cannot essentially be numerically simulated with Fluid systems with free liquid-air interface." Hearing this, Zhu Lans eyes suddenly lit up: Although Chang Haonan has not introduced any new knowledge yet, he was able to clearly explain DPD, which is still a cutting-edge theoretical framework so far, and directly pointed out its biggest problem. It is obvious that he has really studied this issue. It is not the kind of civil science who only wants to prove Goldbach''s conjecture after learning 1+1=2, or the novice engineer who wants to get started quickly just by brainstorming. ??If just now, the couple still had a somewhat condescending view and wanted to see how much valuable things such a young engineer could say. ?So now, at least Chang Haonan has been regarded as a colleague who can engage in equal academic exchanges. Lin Guofan next to him also sat up straight involuntarily: So the new method you just mentioned can solve this problem? For Lin Guofan, who focuses on applied research, the significance of this matter is even greater. Because the simulation of DPD is a bit too ideal, it can almost only be used for gaseous systems and full-pipe systems where the fluid evenly fills the entire restricted confined space. In the real environment, there are not many situations that meet these two requirements. Almost all research objects are in open spaces and have free liquid-gas interfaces. Of course. Chang Haonan tapped the pen on the paper in front of him: While researching the literature, I found that by combining cubic spline curves and improving the weight function in DPD, we can obtain a conservative force form that can freely convert attraction and repulsion according to different distances, thus ensuring the stability of the model. Particles can gather together at a certain density to form particle clusters similar to condensed droplets..." After adding the higher-order term of fluid density to the equation of state of the conservative force, the equation of state of MDPD is obtained. Chang Haonan said and wrote down the last step of the calculation process on paper, which is the transformation result of the conservative force equation: ?p=kT+A^2+2Br^4^2(-c) After completing the last symbol, he showed a satisfied smile, and then gently put the pen aside. Based on its control equation, it is possible to numerically simulate real droplets. After all, the two professors from Jincheng University are really talented. Although they were a little confused when they first faced an unknown concept, they quickly grasped the key points. "As long as the trajectory and impact characteristics of water droplets can be calculated, it will be easier to understand the phase change process on the solid surface." After understanding Chang Haonan''s explanation, Zhu Lan''s frowning eyebrows gradually relaxed. Come on: In addition, I think a series of algorithms such as time iteration and boundary condition settings need to be determined later. In this regard..." Obviously, after seeing a brand new dynamic theory, she could not wait to try its application in engineering practice. Comrade Xiao Chang. ?Lin Guofan directly interrupted his wife mid-sentence: If there is anything else we need to do later, you can just assign the work. The theoretical improvement of MDPD and the algorithms involved in the specific implementation process can be completed by me, while the specific design of the aircraft de-icing device can be left to Chief Engineer Liang and his colleagues. Chang Haonan looked at the pieces of paper filled with formulas in front of him and said slowly: But I also want to take a longer-term view, rather than just focusing on the Yun8 model. "That is, use this theory to establish an ice accumulation model that can adapt to different environments and airfoils, or not just wings, but any solid surface. In this way, subsequent users only need to provide the characteristic factors of the environment and By studying the physical modeling of the object, the corresponding ice shape growth process can be obtained. Lin Guofan, who was sitting opposite, was so startled by such an ambitious goal that his breath froze: Do you want to come up with a tool for predicting ice accumulation that can be used worldwide? Be aware that the aviation industry is not the only one that will be affected by ice damage. A variety of fields such as electricity, highways, railways, and construction are actually troubled by this. However, due to the instability of climate conditions, it has always been difficult to predict the time, location and specific form of ice damage, and naturally there is no pre-control. Often only when ice damage occurs or is about to occur, a large number of manpower can be dispatched for inspection and repair. Not only is it inefficient, it is also very difficult and dangerous. ??And if Chang Haonan''s ambition can really be realized, then both in the design process and in the use process, targeted prevention can be achieved. For a meteorologist, it is simply a dream come true. Thats right. Chang Haonan nodded: Of course, we dont need to be so radical at the beginning, just deal with a few typical scenarios within our country. However, the environmental factors here are quite complex, such as inflow speed, droplet diameter, inflow water content, ambient temperature, etc. I dont know much about this aspect. Professor Lin needs to be responsible for research and determination. When he was cheating just now, he tried several different expression methods several times, and found that if all the development processes were completed by himself, it would require too many scientific research points, so in the end he chose to just let the system guide him. Do the most challenging and groundbreaking parts of it yourself. No problem, this is exactly what Im good at. ?Lin Guofan already showed an eager expression: In addition, nationwide work cannot be completed overnight. On-site inspections are required in many places. I can first determine the environmental factors in autumn and winter in the Qinling Mountains to ensure that there are no problems with your finalization work. Nanzheng, where the 182 plant is located, is located in the Qinling region, and autumn and winter are also the most common periods for wing icing. Wellthats perfect. ? Chang Haonan just said that he was too self-indulgent in the excitement, and almost forgot to finalize the movement 8F and movement 8J. It is already urgent. Its also a credit to Lin Guofan that he still remembers the needs of Factory 182. As for Professor Zhu Zhu Lan was a foreign aid that was not included in the plan, so Chang Haonan thought for a moment before continuing: "In addition to active de-icing methods such as expansion or heating, it is also important to make the surface of the object less likely to freeze, so I want to test the anti-icing capabilities of materials with different surface structures and roughness. the difference." No problem, we are currently studying the impact of solid surface columnar and hemispherical microstructure on liquid wettability, and some ideas and results can be transferred here. Very good. Chang Haonan stood up and took a deep breath: Then lets start right away! (End of this chapter) Chapter 155 three times the speed of sound Chapter 155 Three Times the Speed ??of Sound Being "loaned" to Nanzheng to solve problems before the August 3rd Project was completed was definitely an accident. ??But the turmoil in this world will not stop because of such an accident. ??Just when Chang Haonan was trying to help 182 Factory solve the long-standing problem of wing icing and prepare to give the Y-8 a new lease of life, a new conflict was also brewing in the South Asian subcontinent. The flight briefing room at Parvatipur Air Force Base, Bareilly District, Uttar Pradesh. ? Lieutenant Colonel Sumit Mukherjee, the pilot of the 102nd Squadron, was sitting on a chair, listening to the squadron leader in front of him describing on a map the relevant information about his next mission. As the most special unit in the entire country''s air force, the ranks corresponding to all positions in the 102 Squadron are one or even two levels higher than those of other units. Even among the ordinary ground staff, there are many officers. ? They only had a total of 8 unarmed aircraft - 6 MiG-25RBK and 2 MiG-25RUS. But this is enough. ?Over the past decade or so, the 102 Squadron has conducted countless bold approaches and even cross-border reconnaissance, but no opponent has ever been able to pose even one effective threat to these aircraft. Also because of the characteristics of the MiG-25, this unit is nicknamed "Three Sonics" within the Air Force. ?But today, as a veteran pilot who has experienced many battles, Mukherjee is still full of doubts about the route drawn by the squadron leader. According to the plan, after taking off, he would first fly a certain distance westward, raising the flight altitude to more than 23,000 meters, then turn north over Aligarh, cross the border for about 170 kilometers, and then make an emergency flight. Turn around, fly west again, cross the entire plateau area and enter Kashmir, and finally make a big circle near Iba before returning. Although the range of the MiG-25RB is theoretically sufficient to complete this flight, the range of nearly 1,800 kilometers also means that it cannot use the afterburner mode as desired, and more than 70% of the range of this reconnaissance activity is not within its own airspace. , need to guard against risks at all times. Squadron leader, why cant we divide the mission into two and execute them separately? After listening to the briefing, Mukherjee asked the squadron leader standing next to the briefing board: Or you can take off two planes at once, but thats too extreme. Well, this is what the superior requested, and the order came directly from New Delhi, without specifying the specific reason. ??The squadron leader put down the instruction stick in his hand, walked to Mukherji''s side, and continued in a lowered voice: But I heard that its because the device you hang under the belly of the aircraft can only read and write data a maximum of 6 times before it becomes scrapped, so the higher-ups want to maximize its use every time you take off. The two of them turned their heads almost at the same time and looked at the MiG-25 on the tarmac not far away that was undergoing pre-flight inspection. ?Hung under its belly is a streamlined object that looks a bit like an auxiliary fuel tank, but is larger. So what the **** is that thing and it feels so bad flying with it. In fact, this is another reason why Mukherjee feels a little annoyed. He only knows that this thing is some kind of auxiliary equipment for reconnaissance, but it is definitely not something made by Russia, because the MiG-25 carrier aircraft can only control it to start or stop working through a post-modified lever switch, and cannot control it. Make any other adjustments. No pilot would want such a thing beyond his control to exist on his plane. ? Moreover, it will also affect the aircrafts ultimate flight performance, making it impossible for the MiG-25 to break through three times the speed of sound as their squadrons name suggests. The squadron leader shrugged and explained in an uncertain tone: "The Americans sent it, saying that it can conduct radar mapping of the terrain and record all the radar signals scanned." "So this is a pod that can conduct active and passive radar reconnaissance at the same time?" ?Mukherjee raised his bushy eyebrows. They did not purchase the two radar reconnaissance models of MiG-25RBV and RBS, so in the past they could only conduct daytime optical reconnaissance of targets. ??Although the reconnaissance aircraft itself is difficult to intercept, it is not difficult to prevent simple photographic reconnaissance, as long as the most primitive camouflage method is used. ?Especially because the opponent also has a radar station at an altitude of more than 5,000 meters, which can track them from the moment they take off. Even when facing the MiG-25, they have about 20-30 minutes of warning time. So their main purpose of conducting cross-border flights in the past was not so much reconnaissance as provocation. After all, we suffered a big loss more than 30 years ago. But if there is such a pod, the situation is completely different. ?Most optical camouflage methods are ineffective for SAR radar, not to mention that this thing can also capture the opponent''s radar signal characteristics, which is a very important technical parameter in air-ground confrontation. Yes, the version I heard is that the Americans learned that China has deployed a new anti-aircraft missile regiment in Shigatse. They think it may be S300PMU1, and they want to obtain relevant evidence to put pressure on the Kremlin. The squadron leader continued to talk about some rumors he heard when he went to the headquarters for a meeting: New Delhi hopes that while carrying out this mission, it can also conduct a reconnaissance of our old opponents, especially near the actual control line and...their nuclear plants. Mukherjee stroked his mustache: Sounds like a dangerous place, and theres even an anti-aircraft missile site? "There is nothing you can do about it. If your route is not more radical, they may not turn on the aircraft at all, and the significance of this reconnaissance will be lost." The squadron leader gently patted Mukherjee on the shoulder: Furthermore, that position is still dozens of kilometers away from your route. As long as you keep flying at an altitude above 23,000 meters throughout the whole journey, it is impossible to enter its killing envelope. Whats more, we still have speed, you can save the afterburner just in case. ??The ultimate range of most long-range air defense missiles is achieved by using high-throw ballistics, that is, after launching, the missile first enters a high altitude, and then falls from the sky, exchanging potential energy for kinetic energy to "smash" towards the target. The advantage of this is that it can ensure that sufficient speed and overload are still retained at the end of the trajectory. But when faced with a target whose flying height is close to the top of the ballistic trajectory, it will perform relatively weakly. The two of them wanted to talk about something more, but saw that the planned take-off time was approaching. I have to prepare for the flight. Mukherjee stood up from his chair. ? MiG-25 pilots have to wear a very complex anti-gravity suit before taking off, so the preparation time is much longer than that of ordinary tactical aircraft. Brother, I wish you all the best. The squadron leader saluted Mukherjee. (End of this chapter) Chapter 156 Multiple interceptions (two in one, 5000 words) Chapter 156 Multiple Interceptions (two in one, 5000 words) ?Later that day, near Mansehra, an important town at the southern foothills of the Hindu Kush Mountains. ??Radar operator Captain Arshad Khan had just completed the change of guard with the colleagues in the previous group and sat on the chair in front of the radar operating station. As the closest anti-aircraft missile site to the Kashmir region, it has been used as one of the most important nodes in the defense of Iba since the 1990s. It is equipped with a battalion of Hongqi 2B A surface-to-air missiles introduced from China. This model, which had shot down U2 many times, was no longer considered advanced in the mid-1990s. The poor performance of its imitation prototype S75 Dvina in the Gulf War even forced the Chinese Air Force to pull it out again. The easily jammed Type 59 100mm anti-aircraft gun turned the anti-aircraft missile regiment back into an air defense regiment to deal with air threats under strong electromagnetic interference. But in any case, this kind of liquid-fueled, anti-aircraft missile that even needs to be refueled before launch has a pretty good shooting height and range on paper, and the warhead is huge, and it does not need to hit the target very accurately. Since the position itself is about 4,000 meters above sea level, this missile once hit an astonishing height of 28,000 meters in test firings. ??For the Pakistani army, which is still unlikely to encounter high-intensity air threats like the NATO coalition forces, this is already the best anti-aircraft weapon they can use. At least it can provide some practical sense of security to the big shots in Yburgh. ?However, in the past year or two, the situation in Kashmir has obviously eased a lot. This may be because Indias main weapons source country is in chaos and many equipment cannot be repaired and maintained smoothly. ?Arshad yawned, turned around and slightly turned up the volume of the radio placed on the table behind him. ??A match of his hometown cricket team was being broadcast there. After the following rounds of competition, the scores of the two teams increased alternately, and the battle was very fierce. If this continues, the game may fall into a draw. A fellow in charge of communications next to him was also paying attention to the score on the radio, with a bit of regret in his tone: Our start had a great advantage. As two countries with the same roots in the South Asian subcontinent, the discipline of the Pakistani army is basically on par with that of its old rivals. It is not a big deal to slip out of the army while on duty. As a result, as soon as the correspondent finished speaking, the home team of the two players completed a beautiful pitch and successfully sent out one of the opponent''s batters. I think if you say a few more depressing words, we might win. ?Arshad joked with his companions and glanced back at the radar screen out of habit. A bright spot appeared on the screen and he suddenly became excited: Wait a minute, theres a signal near the eastern border. What boundary? The next round hasnt started yet. The correspondent was still immersed in the game. It was not until Arshad turned off the radio that he finally came back to his senses: Eastern border? Then why are you so nervous? The east side of Kashmir is the border area with China, which is basically in a completely free-range state. Their focus is still near the military demarcation line, which is also the place where the opponent''s air force most often carries out cross-border provocations. But the altitude of this plane is 18,000 and the speed is 1,100. ?Arshad stared at the radar screen and frowned slightly. ?This is by no means a height and speed that a civil aviation aircraft can reach, but judging from the trajectory of the other party, it is indeed just flying along the border line in a regular manner. Maybe its a Chinese Air Force fighter jet patrolling The correspondent''s voice became softer and quieter midway through his speech. It was obvious that this explanation was difficult to convince even himself. We have served here for 6 years. How many times have you seen their fighter jets in this position? ?Arshad rolled his eyes: No matter what, let the launching unit prepare first, refuel in advance, and then notify the battalion commander. An important upgrade of Hongqi 2BA is the improved fuel tank. Although it still needs to be filled with fuel before use, it at least increases the lifespan. Therefore, the permission to refill the fuel command is delegated from the battalion commander himself to the officers on duty. ?Of course, the launch order must still be given by the battalion commander. The combat command room suddenly became busy. By the time this series of command and reporting processes were completed, the aircraft had already flown close to the actual control line. Hope its just a false alarm ??The correspondent sat back in his chair and muttered to himself as he looked at the bright spots on the radar screen. Almost as he said it, the target that was originally flying along the border suddenly changed direction and headed straight towards the north side of the southeastern dividing line. ?Feeling a little dizzy, Arshad suppressed the urge to gag his fellow countryman''s mouth and ordered in a deep voice: "Quickly notify Peshawar Base and Kamla Base and let them prepare to intercept the target!" ?At the same time, Lieutenant Colonel Mukherjee, who was sitting in the cabin of the MiG-25RB, was happy because his little cleverness just now worked. He did not rush directly into Pakistan''s actual control area from the northernmost part of Kashmir. Instead, he disguised himself as a patrolling Chinese fighter jet and suddenly turned the direction of the plane''s nose when he was about to reach the actual control line. About a minute after he crossed the border, he received a notification that he had been tracked by an S-band fire control radar. The RWR (Radar Warning Receiver) showed that the source of the threat was SNR-75, but Mukherjee knew it was definitely It''s the kind of Chinese imitation model. Just about 30 minutes ago, another radar with almost identical signals scanned him, but it was too far away to complete the lock. Obviously, the legendary S300 does not exist. He made an extra circle because of an air defense system that may just be an improved SAM 2, wasting nearly half of the fuel and nearly an hour. Fortunately, I deceived them, otherwise it would still be a bit dangerous to rush directly to the anti-aircraft missile position... The lieutenant colonel said to himself happily. ? He ??certainly could not have known that the sluggish reaction shown by the other party was simply due to the radar operator''s negligence. Within a few breaths, the MiG-25 climbed to an altitude of 22,000 meters, and the speed was still maintained at around 1,100km/h. Due to tight fuel, Mukherjee could only turn on the afterburner at the most critical moment. The Pakistani missile operators on the ground showed incredible efficiency and completed launch preparations in the shortest time through various operations that did not comply with the manual. ??The commander of the air defense battalion was still reporting for instructions, but he found that the MiG-25 still had no intention of turning after crossing the entire Kashmir, but continued to rush towards Ibao. He only hesitated for half a second at most before giving the launch order. From the hexagonal launch position, two missiles shot straight into the sky with thunderous sounds and dazzling firelights. Solid fuel boosters can give missiles good acceleration capabilities. Although highly toxic nitrogen-containing fuels are inconvenient to use, they at least work for a long time. Inside the MiG-25 cabin, the sound of the RWR instantly turned into a continuous high-frequency buzz, which often meant that the missile had been launched and was flying towards itself. "So fast?" ?The other party''s reaction speed surprised Mukherjee. He pushed the throttle valve as fast as possible. It was obviously not the time to worry about fuel. The battalion commander in the command room looked hopefully at the two anti-aircraft missiles on the screen that were getting closer and closer to the target. For a moment, he was already imagining the scene when he was awarded the medal. But the good times did not last long. The speed of the target displayed by the radar was getting faster and faster, exceeding twice the speed of sound in a short period of time. 2.2 times the speed of sound? A drop of sweat appeared on the battalion commanders forehead. ? This speed and height obviously indicate the identity of the opponent. This is not the first time that he has had a battle of wits with the MiG-25, but before that, the opponent had only been active in the Pakistani-controlled area of ????Kashmir, and had never been so rampant. If it continues to accelerate, it will be out of our killing range. ?Arshad''s tone was a little annoyed and a little scared: It...will it really fly over Iburg? "No...uh...I mean, I don''t know, I hope not." ??The battalion commander wiped the cold sweat from his head, and the face reflected on the radar screen had turned pale. After all, 2.2 times the speed of sound is really not a number worth mentioning for the MiG-25: Has the aviation force already taken off? Already notified. ?Arshad nodded. ? He ??felt that his battalion commander seemed to be overreacting, and at the same time he secretly made up his mind that if the people above found out, he would truthfully admit his mistakes, and he would never implicate other people under any circumstances. However, in fact, he underestimated the seriousness of the situation. In the entire army, only the battalion commander himself knew what his anti-aircraft missile position was protecting. ??It is not Yibao as everyone generally thinks, but a nearby top-secret nuclear industry facility that is currently producing high-purity weapons-grade enriched uranium. If something goes wrong there, even if he dies a thousand times, it wont be enough to atone for his sins. ?But at the same time, Mukherjee in the MiG-25 cabin was not feeling well either. The electronic reconnaissance pod under the belly of the aircraft had a greater impact on flight performance at high altitudes than he expected. Not only was the aircraft unable to accelerate to more than 3 times the speed of sound, it even took some time to break through 2.3 times the speed of sound. RWR can only provide radar signals. In fact, the pilot has no way to know where the missile aimed at him is. After a few seconds of fighting between heaven and man, the huge psychological pressure still caused Mukherjee to make several consecutive sets of small left and right maneuvers. ?At extremely high speeds, even this action caused the aircraft''s overload to instantly exceed 3.5g. Fortunately, the aircraft was strong enough, and Mach 2.3 was far from degrading the performance of the body''s materials due to heat. The missile''s booster rocket motor can only work for a short time, and after that it can only continue to fly to the target through inertia. ?Hongqi 2''s situation is slightly better, but only relatively speaking. The liquid-fueled main engine is really underpowered, and its top speed is not even much faster than the MiG-25. Mukherjee''s actions forced the two missiles to continuously modify their courses, which quickly ran out of energy as they had lost power and were still climbing. ??The air defense battalion commander in front of the radar screen watched helplessly as the two missiles began to drop high one after another, and the closest one was more than two thousand meters away from the target. ?But there is hope He didn''t know why the MiG-25 didn''t use the simplest method to accelerate away, but the few maneuvers just now were not without cost. In addition to causing the target''s speed to briefly drop below Mach 2.0, it also caused the flight direction to change. yaw. ?? Now the opponent needs to make a small radius turn that will inevitably lose altitude and speed in order to re-target Iborg, and this leaves a theoretical interception window for the aviation unit. Correspondents are continuously reporting the situation to Peshawar and Kamra to assist them in directing fighter jets to conduct interceptions. The two Mirage 3EPs of the 7th Squadron and the two J-7Ps of the 14th Squadron had already taken off as soon as they received the report and were approaching the target from two directions. ?A little further away, two F16As of the 9th Squadron have also taken off and are ready to come to assist in the battle. The MiG-25 has a set of camera equipment installed on its nose and does not have a radar, and it is impossible to communicate with the base at such a long distance. Therefore, Mukherjee does not know how many aircraft are on the way to intercept him, but he is After realigning the direction, he made an extremely sophisticated response based on his experience. Climb, not accelerate. ?Including the F16ABLOCK15, no aircraft of the Pakistan Air Force can launch radar-guided medium-range air-to-air bombs, and no aircraft can fly above 21,000 meters. They are destined to be helpless against real high-altitude targets. However, if you increase the speed blindly, on the one hand, it may lead to insufficient fuel; on the other hand, if you are completely blind, you may even hit the face of the intercepting aircraft head-on. ?At that time, it was impossible to save the gods. What a seasoned bastard ? Lieutenant Colonel Mohammed Sami, who was driving the Mirage 3 lead plane, heard the other partys actions on the radio and cursed angrily. He relied on his rich experience to completely guess the opponent''s route. To this end, he took his wingman and made a special circle after takeoff. Now he was almost directly in front of the opponent''s flight direction. If the opponent is a daredevil who is superstitious about speed, then he will enter the missile range in about 3 minutes. The temperature of the MiG-25''s skin when flying at high speed is amazing. Even the older infrared-guided combat missiles can capture the heat on the skin. The heat source does not have to be cut into six o''clock before firing like when facing ordinary targets. But now, he knew that the interception should have failed. Soon, the two J-7Ps trying to pursue the target were the first to give up the attack due to lack of fuel. ?Although the F16 in the distance had captured the target''s signal with radar, the AN/APG66 radar was unable to guide the over-the-horizon attack, so it had to give up. Only Sami and his wingman made a single jump to an altitude of approximately 2,500 meters below the target and fired a salvo of Magic air-to-air missiles. But close combat rounds were not designed to be fired in such an awkward position. Due to insufficient muzzle velocity and the need to climb, the four missiles lost their stability almost as soon as the rocket engines stopped working. The only gain was that the traces of the MiG-25 were captured with a camera gun, which at least saved some for the Air Force. face. A few hours later, several pilots involved in the interception, as well as the commander of the anti-aircraft missile battalion, were gathered together and received from the Air Force Staff Headquarters. It was supposed to be a high-level situation report. Thanks to the desperate launch unit regaining a lot of time, no one knew that Arshad almost missed the target because of a half-game, so although the atmosphere was a bit heavy, the attitude above was generally positive. of. After all, the equipment gap does exist objectively, and it is quite difficult to see each other within visual distance. A short period of time before the meeting, the captain of the 9th Squadron, Colonel Badla Islam, who also participated in the interception, found Sami who was a little lost. Well done, honey badger. The two had served in the same unit for a long time, and Honey Badger was Samis codename at that time. But his superiors obviously prefer Islam who obeys orders, so his official career is much better than that of Sami, and he can always stay in the F16 unit. Forget it, let them run away. Sami was obviously not satisfied with just taking pictures of the target with a camera gun. I think this is not a bad thing. ??Islam whispered into Samis ear and said: Especially at this time. "How to say?" Sammy raised his head and looked at his old friend next to him. He is a fairly pure pilot, or more bluntly, a combat fanatic, but is far less sensitive than Islam in other matters. When you went to China to attend an air show last time, did you see their new fighter jets? The Xiangzhou Air Show has ended for a few days, and the air show during the opening ceremony has already been spread everywhere. Of course, but what we are looking at is actually another deeply improved version of the J-7. Should I show you its model photos? Islam nodded: Indeed, we have always regarded Chinese equipment as alternatives or cheap substitutes in the past, and the main force of the air force has always been Mirage 3EP and F16. But this time, do you think the big shots in Yburgh still have a choice? The words of his old friend made Sami think. He is just insensitive, not stupid. "Hmm...you mean we might buy higher-end Chinese fighter jets, such as the J-8C?" "But on the one hand, China itself does not yet have radar-guided medium-range air-to-air missiles, and its interception capability may not be stronger. On the other hand, even to deal with the threat of the MiG-25, the introduction of a high-altitude and high-speed interceptor aircraft is very important to us. Doesnt seem like a good choice either. You are right, but these are technical issues. ??Islam''s tone is a bit hateful: But for our country, the choice of main fighter jets must not only consider technology. The Chinese are much more reliable allies than the United States and France. Thats true. Sammy agreed with this statement. Look, there will be big changes soon. Islam said and patted Sami on the shoulder: General Pervez may go to Kamla Base for inspection in a while. Remember to behave in front of him. Dont be too deliberate. Its enough to let him remember you as a person. Pervez? Sammy was stunned for a moment when he heard the name: Isnt he from the Army? "Don''t worry about it. You must remember this. I have never tricked you before...at least not on the ground." Islam is not a very good pilot. Teaming up with him in an air battle is almost the same as fighting alone. ??However, in all fields other than flying, he has done quite well, and there is nothing to say about his treatment of his subordinates and friends. Well, its true, its up to you. Updates will be added in the afternoon as usual, thank you book friends for your help in recommending ? (End of this chapter) Chapter 157 Save the Army 8 Chapter 157 Saving the Great Military Luck 8 In the following period, with the help and guidance of Chang Haonan, the prediction results of the ice accumulation morphology on the surface of the Y-8 main wing and tail wing were quickly produced. ?In the cold wind of late November and early winter, in the final assembly workshop of Factory 182, a group of people were surrounding the transport 8F that was being pulled out as a research object. Not far from the aircraft, there are two drawing boards on which three views of the Y-8 main wing and horizontal tail are drawn. ??If you look closely, you will also find that there are several irregular lines outlined in different colors around the edge of the wing. Since the problem of wing icing involves flight safety, the work of the entire 182 factory has slowed down during this period, especially the test flight of Y8J, which was directly stalled due to the last second-class accident. According to the schedule, the first two sets of SouShui-2000MS radars purchased from the UK will be shipped back to China soon. Although in the preliminary preparations in the past few years, the radar part has been simulated using equal-weight counterweight models, which verified that the flight performance of the aircraft will not be too seriously reduced due to the installation of radar, it is necessary to install real electronic equipment When getting on an airplane, a series of issues such as energy consumption, vibration, working environment, and electromagnetic compatibility must be considered. These can only be tested by a genius. Hence, if the test flight cannot be restarted when the radar is shipped back to China, it will have a very negative impact on the time it takes for the equipment to become combat effective. ?At one time, some people even thought that they should build a simple multi-stage electric heating device according to the initial plan, and wait until the next model to slowly consider a more complete de-icing system. In the end, Liang Shaoxiu resisted the pressure and fully supported the basic research subjects of Chang Haonan and several others. Only then did he see practical results today. "Comrades, after nearly half a month of work, two professors, Lin Guofan and Zhu Lan, and I have completed the simulation and prediction of the growth of ice accumulation on the wings of the Y-8 aircraft, and have also determined the corresponding heating and de-icing system load. Chang Haonans first words caused a burst of applause in the huge assembly workshop. No matter what attitude the people standing here had towards this research before, since the results have been obtained only half a month later, there is nothing to argue about. ??If you are not worried about the project progress not being able to meet the deadline, who wouldnt want a system that is more effective and can improve flight performance? The four red, orange, blue and green lines in these two pictures respectively correspond to the ice accumulation on the wing section after the aircraft passes through the ice area for 120 seconds under different severe climate conditions. The conditions of Factory 182 are really limited. There are no digital projectors in Beijing or Shengjing. If you use slides, the resolution will be relatively low. On the other hand, there is no way to project such a large drawing, so we have to On the drawing board, let everyone gather around and look at it. So under the worst weather conditions, ice accumulation is mainly distributed on the lower surface of the wing? ?Some people immediately saw the clues. In the mid-1990s, due to objective reasons such as insufficient performance of ice detectors, not to mention China, the world''s research on ice damage during flight was still in a barbaric era. Among other things, even the natural icing test, which has become very popular in later generations and has even become one of the standard procedures for civil aircraft airworthiness certification, does not yet have a particularly unified and scientific standard. ?Americans basically rely on the fact that the temperature in the Great Lakes region is low enough and the water vapor is abundant enough to find similar clouds to fly in. As for other countries, they are even more impressive. Fortunately, the flight conditions of most jet aircraft are already on the edge of the icing area, so the number of air accidents related to ice accumulation in civil aviation is still within an acceptable range, and most of them are regional passenger aircraft such as the ATR72. Smaller general aviation aircraft such as the Cessna 172 will have a relatively limited impact. So the results of this simulation are indeed somewhat counterintuitive to most people. "The flight speed of the Y-8 aircraft is already relatively fast among propeller aircraft. According to our research, when the inflow speed exceeds 75m/s, supercooled water droplets will have a greater impact on the wing surface. There is a probability of impact rollback, rather than normal spreading viscosity, so the upper surface of the wing with faster airflow is relatively clean. "Furthermore, even if ice forms on the upper surface of the wing, since the faster incoming flow speed corresponds to a smaller incoming flow angle, the ice shape will mainly be frost ice without overflow process. The adhesion ability is very poor and the ice surface The shape is very similar to the shape of the wing, and the damage to the life ice is much weaker than that of the leading edge and lower surface. " If this is an aircraft flying at a relatively slow speed, such as the Y-5, then the ice accumulation area to focus on will become the leading edge and upper surface of the wing. Chang Haonans explanation was clear and clear, and the engineers surrounding him quickly understood: So we, or almost all the de-icing devices that were developed based on experience for large propeller aircraft in the past, actually missed the point? Yes, a lot of energy is wasted. ?Chang Haonan nodded, then picked up the pen again and pointed at the horizontal tail part: "Another point is that the degree of ice accumulation on the aircraft will weaken as the chord length of the wing increases. That is, the closer to the outside of the wing, the less likely it is for ice accumulation to occur. This can also explain why ice accumulation occurs on the horizontal tail. Often more serious than the main wing. "According to our research, in quite a few cases, ice on the wing not only does not cause a decrease in lift, but also provides an additional positive pressure area due to the strong vortex formed in the back area of ????the ice. For an aircraft with a normal layout, For example, there will be a strong bowing moment, which is why the previous Y-8J had an accident. " After Chang Haonan, there were Lin Guofan who introduced the impact of meteorological factors on ice accumulation problems, and Zhu Lan who introduced the microstructure design of the wing surface. ?This small-scale seminar held in the assembly workshop lasted until the night of that day, and even dinner was delivered by someone from the canteen. ?As the three people''s explanations continued, a new set of ice accumulation theories was gradually laid out in front of all participants... Then, as long as we provide different de-icing designs in different areas of the wing according to different ice accumulation conditions, we can greatly improve the anti-icing capability and improve energy consumption levels. According to our calculations, after applying the cylindrical surface microstructure designed by Professor Zhu Lan to the leading edge of the wing where the ice accumulation is the most serious, under the working conditions corresponding to these four lines, the amount of electric heating required for each meter of the wing to de-ice The system power requirements are 160W, 465W, 992W and 1430W respectively, while the converted thermal powers of the gas thermal de-icing system are 128W, 402W, 817W and 1265W respectively. Even if a 50% safety margin is considered, it will save 65% of electrical energy and 85% of thermal energy compared to the previous Soviet design. Especially the latter, when the hot gas de-icing device is turned on, it can directly increase the engine output by about 8%! When Chang Haonan said this, he dropped the pencil in his hand on the table in front of him: So, comrades, our next job is to design the corresponding two sets of de-icing devices based on the calculation results, and match them with the internal structure of the wing, so that the veteran Yun-8 can be given a new lease of life! Note: In this chapter, the issue of flow velocity on the upper and lower surfaces of the wing is explained using Bernoulli''s principle (high flow velocity brings low pressure) that appears in middle school textbooks. But strictly speaking, people still don''t fully understand the question "why airplanes can fly." There are several different schools of thought regarding the specific source of wing lift. (End of this chapter) Chapter 158 You must do the airworthiness certification yourself! Chapter 158: You must do airworthiness certification yourself! After obtaining the most difficult basic research results, Factory 182 is naturally capable of completing the work of improving the de-icing system and wing structure design on its own. It is an aircraft design and manufacturing group with a design department. It cannot rely on outsiders for such basic work. ?However, this does not mean that the work of Chang Haonan, Lin Guofan and Zhu Lan has come to an end. Because like all other aircraft design work, the anti-ice capability also needs to be tested. As a result, several people had to face the same situation as when the Turbojet 14 was doing the ground stability test before - there was no test standard. And this time its not just domestic standards that dont exist. As mentioned before, in the mid-1990s, everyone was relatively unrestrained in dealing with aircraft anti-icing. Only the United States Federal Aviation Administration (FAA), which had the best testing conditions, had a set of anti-icing and airworthiness regulations in the FAR-25 part. sexual requirements. As far as I know, the only domestic aircraft that has undergone systematic icing tests is the Y-12B, which was carried out in the United States in 1986. ??Liang Shaoxiu gently stroked the stubble on his temples and said to the other three people sitting at the conference table: "A few years ago, I heard the engineer who led the team give a report. The whole process was very bumpy, and I was often deliberately made difficult by them. The verification process can also be said to be... full of dangers." "The content of their airworthiness test is not perfect. In many cases, they rely on the intuition of random meteorological engineers to get into whichever cloud group is more pleasing to the eye. As for the evidence collection of the icing and melting process, it is even different from ours. The original method is similar, it is done with several cameras fixed on the outside of the aircraft. Chang Haonan shook his head: "After all, the Y-12B is just a 5-ton, 20-seat, small aircraft with a maximum speed of 300 kilometers, and it is not in line with mainstream aircraft levels. The market prospect is very limited, so as long as you spend money, the FAA will not be too stuck. But this is not a long-term solution after all. Lets not mention that the Y-8 is a military model. If we want to build an aircraft to compete with Boeing in the future, will the FAA continue to provide us with airworthiness certification? ? Having passed the turbojet 14 engine test before, he finally established China''s own aviation industry standards through the Commission of Science, Technology and Industry for National Defense. It is definitely impossible to go back to the Americans for work. ?But before Chang Haonan could further express his thoughts, Lin Guofan next to him couldn''t hold it in any longer: "Not only that, I have been studying air crashes that have occurred in various countries around the world due to weather problems. In the past three years from 1994 to now, there have been seven or eight air crashes in the United States alone due to icing on the wings, and the accidents are even more No less than a hundred times, there is clearly a disconnect between the FAAs airworthiness requirements and the actual situation. On the other hand, FAR25 only stipulates what an aircraft should do, but does not stipulate a more specific how it should do it. For aircraft designers and pilots, the guidance is not clear enough. As a meteorologist who is involved in the aviation industry to a certain extent, the latter has the deepest understanding of this aspect among the few people - In many cases, when a person studies too deeply in a certain field, he sometimes ignores the macro vision of the entire industry. On the contrary, interprofessional researchers will have some advantages in this regard. I think that in the foreseeable future, we should be unlikely to sell Y8 to the United States, and more importantly, the research we did during this period is exactly in this area. I think we can refer to the FAAs requirements. , and come up with a more complete and guiding standard based on my countrys actual situation! ?Lin Guofan''s eyes almost glowed when he said this. After people reach a certain stage, they will always have some pursuits other than material things. In fact, there are not many opportunities to become famous in the field of traditional meteorology. You still have to follow the general trend and participate in some key projects and projects. In the past half month, he felt that he had at least found the right direction. Conduct ice accumulation morphology simulations across the country and even the world! As long as Chinas aviation industry continues to develop, it must cross the safety hurdle. ??If the thinking is broader, the analysis objects are not necessarily limited to aircraft. High-rise buildings, transmission lines, bridges and tunnels, etc. are all within his business scope. ? It may be a bit too much to say that your name will go down in history, but you can still hope to leave a strong mark in the industry and have your name appear in future textbooks. Its exciting just thinking about it. Chang Haonan opened his mouth and looked at Lin Guofan opposite him with some surprise, who seemed to be trapped in his own world. ?The other party has already said everything he wants to say. Simply a perfect replacement. ?According to his experience, when a man shows that kind of intoxicated expression, it is most likely that he is in some YY secondary plot, where he becomes famous and even saves the world. There is no way, a man is a young man until he dies, and it is not like he has never had sexual **** with something similar before he is reborn. ??The somewhat awkward atmosphere lasted for a few seconds until Zhu Lan, who couldn''t stand it anymore, reached out and quietly pinched her husband''s waist. If thats the case, I think we can let Dr. Chang be the first person to complete the project and apply to the Science and Technology Commission for a big project. Liang Shaoxiu is quite familiar with this method of playing in the aviation system. Their 182 Factory is now almost at a critical moment of life and death due to lack of funds and talents. If they can get such an eye-catching project, they will definitely get some funds and policies. of tilt. But after saying that, he felt a little guilty. For such a big job, even if Chang Haonan or even Du Yishan''s names were guarantors, the superiors would probably not trust them to hand it over. ?So Liang Shaoxiu gritted his teeth again: If it really doesnt work, we can also bring in the 603 Institute. As far as I know, the MA-60 project will go to the United States next year for airworthiness certification testing according to the original plan. "etc" Zhu Lan, who had been silent just now, seemed to have heard something extraordinary: You want Comrade Xiao Chang to be the first person to complete the project? Will this... As a professor-level figure in the same mixed system, she naturally knows all about the twists and turns. Although Zhu Lan now recognizes Chang Haonan''s ability, in her opinion, if you want to apply for a project from above, it is best for the first person to complete the project to have a more influential name, so that the approval process will be much faster. . ??Although she couldn''t think of anyone in Factory 182 who could be called "influential," Chang Haonan in front of her was a bit too young anyway. Of course Liang Shaoxiu next to him could also understand the meaning of Zhu Lan''s words. At this time, Chang Haonan must not be allowed to explain himself. ?That would be bragging about oneself and not looking decent enough. So he quickly interrupted Zhu Lan in mid-sentence: Professor Zhu, you dont know something. Comrade Changs mentor is Academician Du Yishan. Furthermore, Comrade Chang himself is already the first completer or co-first completer of several key projects of the Science and Technology Commission. ?The conference room fell into silence for a moment. ?Zhu Lan and Lin Guofan first looked Chang Haonan up and down, and then looked at each other in unison So it turns out that the young geniuses we always thought were the real talents? (End of this chapter) Chapter 159 natural freezing test Chapter 159 Natural Freezing Test Ahem Even though Chang Haonan was quite thick-skinned, he couldn''t bear the three burning glances, so he quickly continued what Liang Shaoxiu had just said. Im afraid that the FAA approval of Xinzhou 60 will be put on hold. The 603 Institute is now in contact with a European company. As for the airworthiness certification work... with the participation of European companies, we can strive for EASAs airworthiness certificate. But as I said just now, when it comes to standards, we dont rely on others for anything, so we must still focus on ourselves. As someone who has indirectly participated in the design of MA60, he will still have a clear idea of ??the future direction of this project. In 1997, it failed to get airworthiness certification from the FAA. After that, it could only be used in China and a few third world countries for many years. In the end, my grandma didn''t care about it, and my uncle didn''t love it. It was rejected even if it was used as a patrol aircraft by the Coast Guard - like this The plot that happened on the original timeline cannot be repeated in this plane. Originally, Chang Haonan had been worrying about what kind of entry point he would use to make today''s China Aviation Industry give up its dog-licking behavior towards the FAA. However, during the previous turbojet 14 test, that phone call came from the Commission of Science, Technology and Industry for National Defense. It seems to have solved the problem for him. ? He ??heard Du Yishan say that the focus of the Shanghai Aircraft Manufacturing Plant''s production of MD90 aircraft has changed from "accepting and learning the full set of American aviation industry standards" to "digesting and absorbing key technologies and accumulating experience in the final assembly and manufacturing of large civil aviation aircraft." Considering that AgustaWestland has begun negotiating specific model cooperation matters with China Aviation Technology, the future development focus of the MA-60 should shift to Europe. Thats good, thats right! ?Lin Guofan is excited again. He is now as enthusiastic about formulating independent standards as Chang Haonan: "Standards can only be developed and improved through continuous practice. After all, the Y-8 is a military transport aircraft. Many of its design orientations are different from those of civil aviation. It is impossible to completely transfer its test flight experience to other aircraft. Not conducive to further promotion. So it would be great if we could have a serious civilian model like the MA60. In fact, what he is talking about is the issue of military standards and civilian standards. Although the two can be the same in many places, there will be some differences after all. ?For example, military aircraft can accept higher performance at the expense of certain reliability, and the indicators of environmental protection, emissions, and economy are not strict. The civilian model is completely different. Anyway, lets start with the natural icing test. Chang Haonan tapped the table lightly with the pen in his hand, and finally brought back the thoughts that several people had just let go: To form a set of universal standards for the entire aircraft that meets the requirements for all models is completely different from conducting icing tests on only the wing part of a single model, and the workload must be at least one order of magnitude greater. We have to solve the two problems of what to test and how to test at the same time, and at the same time, we must try our best to provide some guiding data and opinions on anti-icing work. Once we talk about practical issues, we need to think more rigorously, and we definitely cannot talk as freely as when we were just thinking about the future. The four people began to think about the next plan from their own professional perspectives. Actually, Chang Haonan had a bigger ambition that he had not yet said - In the mid-to-late 1990s, Europe and the United States experienced a series of air crashes caused by ice accumulation, which even affected public confidence in the civil aviation industry. Especially Europe. This is a critical time period. ??The newly formed European Union is not the brain-dead organization it was more than 20 years ago. European countries, including the United Kingdom, are still somewhat conceited and unwilling to follow the lead of the United States on the other side of the ocean. In this matter, China and Europe have common interests. ? So he wants to use the natural icing test, an airworthiness certification project that has a great impact on flight safety, as a breakthrough to try to promote comprehensive equivalence and mutual recognition of the two sets of standards of CAAC and EASA through AgustaWestland. ?If successful, it means that aircraft models that obtain airworthiness certificates in China can be sold directly to Europe in the future. Taking into account the demonstration effect of EASA, probably no one will have to worry about sales in places other than North America. It can be regarded as a milestone development for China Aviation Industry. After ten minutes of careful consideration, Lin Guofan, who regained his composure, spoke first: I think we still need to determine a basic work process according to the priority of things. "fair enough." Liang Shaoxiu said and took out a piece of paper from the side: We have now identified several main factors that affect aircraft ice accumulation, so the next step is to determine the airspace and atmospheric conditions requirements for natural icing test flights, such as temperature, water droplet diameter and liquid water content, based on this. " ?Chang Haonan then continued to add: "Regarding this, it is best for Professor Lin to study the distribution of ice accumulation in our country at different time periods and at different heights in advance, compare it with foreign climate conditions, and set several different anti-icing levels, otherwise there will be nothing. Isnt it a joke if we set standards and the test cannot be completed in our own country? In fact, the reason why natural icing experiments in later generations are almost monopolized by the FAA is that, in addition to their earlier research in this area, another big reason is that the natural environment is suitable and the weather forecast is accurate. ?It is very difficult to prevent the aircraft from accumulating ice at all. ??But it is more difficult to get the aircraft to accurately accumulate ice according to preset conditions. It cant be too cold or too hot, it cant be too dry or too humid, the air flow cant be too strong or too weak In short, the Great Lakes region is basically the place with the highest ice accumulation frequency in the world. This is certainly not a good thing for flight safety, but it is a treasure trove for flight testing. A test that would take months to complete elsewhere could be completed in a week at the FAA. ?As far as the situation in China is concerned, there is definitely no such a chosen place as the Great Lakes region, but it is definitely not impossible to find an airspace that meets the conditions. If you dont have enough talent, you have to work hard to make it happen. Then we can only rely on meteorologists to make accurate forecasts. Dont worry, my research team has been tracking the climate conditions in northwest China for nearly 20 years, and we still have some experience in these aspects. ?Lin Guofan waved his hand rather boldly and took over the job. Then, our 182 factory, and the 603 factory that may join in the future, can be responsible for designing a standardized aircraft parameter measurement system... I could continue my research on passive de-icing methods Oh, by the way, I almost forgot the most important thing. The application for the natural freezing test project must be submitted as soon as possible, otherwise by the end of the year, all projects will be busy being reviewed, and it may be postponed until next year. ?Chang Haonan reminded Liang Shaoxiu next to him. "no problem." The latter nodded: I will start preparations after I go back today and try to get the project completed before mid-December! Thats it, lets go back and complete the preliminary preparations first. This matter cannot be rushed. It should require the cooperation of many brother units later. The meeting is dismissed! (End of this chapter) Chapter 160 AgustaWestland wants in-depth cooperation! Chapter 160 Agusta wants in-depth cooperation! Liang Shaoxius project application was quickly submitted to the Commission of Science, Technology and Industry for National Defense, and was also copied to 603 institutes, inviting them to participate in standard formulation and airworthiness certification work. This time, the Science and Technology Committee''s mentality has been much calmer. They did not gather the aviation leaders of the entire imperial capital for a meeting in a small dark room. Ding Gaoheng only organized an internal discussion. Furthermore, after the last route dispute, "establishing one''s own aviation industry standards" has become the main tone recognized by the top, so naturally there are fewer heated debates. The main concern for everyone is that in such a short period of time, the aviation industry has submitted a second application for the establishment of a new national standard. "Director Ding, our main certification team is currently at the 624 Institute to follow up on the GJB/Z64A-96 standard for aviation engine stability testing. If there is a new task at this time, I am afraid it will have to be dominated by the aviation industry system''s own people. , this 182 factory was originally a backup for the 603 institute and the 172 factory. I am worried that their technical strength cannot keep up with the requirements..." For these big guys in the front row of the Science and Technology Commission, this is definitely a happy trouble. In the past, their daily routine was to worry about not having enough money, not having enough technology, and not being able to pass the project... ?This is the first time that I have worried about too many excellent projects like today. Then are you considering letting 603 Institute take the lead Someone has come up with the simplest solution. ?However, it soon encountered opposition: "But Nanzheng has already completed a lot of preliminary work. If we step in midway and hand over the project leadership to others, what do you want the factories in the aviation industry system to think?" I dont think I need to worry about technical capabilities. Ding Gaoheng smiled and waved his hand, which showed that he was in a good mood during this period: You can take a look at the other project description submitted by Factory 182 to see who was the first person to complete it. There was a sound of paper turning in the conference room. Chang Haonan Because the last closed-door symposium was very tight and high-level, most people present did not participate, so the name may not have left a deep impression. However, there is one person who is obviously always paying attention to Chang Haonan''s development trends. That was Zhou Lin, who had met him once before: Chang Haonan is a student of Professor Du Yishan of Beijing University of Aeronautics and Astronautics. He was the first person to complete the Testing and Evaluation Method of Aircraft Engine Inlet Distortion submitted last time from 624 Institute. Isnt that right, Director Ding? Ding Gaoheng picked up the tea cup and took a sip of water, while nodding leisurely: Thats right. People on both sides of the conference table looked at each other. Are they the same person, or...the same name? Its no wonder that some people would ask this slightly strange question. Although aerodynamic stability and aircraft environmental tolerance both involve the field of aviation safety, they are not closely related. And more importantly, there was only about three months between the two events. No way? Can anyone really complete two pre-research plans with different directions in three months? "It should be the same person. This name... doesn''t seem to be very common, and the work unit written above is also Beijing University of Aeronautics and Astronautics." Someone turned to the end of the project description, where the basic information of all the main participants was written. ifier Hearing various expressions of wonder and disbelief coming from around him, a smile appeared on Zhou Lin''s face. After all, if we really want to talk about it, she also had a share of the credit for enabling Chang Haonan and inserting him into the aviation industry system. If the latter can do more good things, she can easily take credit for it. If he can produce the same quality of work as the previous evaluation method, then there will be no problem in letting 182 Factory take the lead with such a person in charge. "In addition, I propose to transfer some technical personnel from Bingcheng who have participated in the Yun-12B project. Although our standards are different from the FAA, our experience is always the same." But at this time, it is not possible. In case someone comes up with some other ideas: "Although I don''t really want to think about this possibility,...will it involve some academic ethics issues? After all...it is indeed a bit unbelievable." Although this sentence is not very straightforward, it is obviously suspected that the aviation industry department is trying to gain the reputation of Du Yishan''s close disciples. Everyone. At this time, Ding Gaoheng knew that he had to stand up and express his position: "Judging from the several projects that Comrade Chang Haonan has participated in, the progress has developed by leaps and bounds only after he joined, and the relevant units involve multiple agencies such as 601, 606, 624, etc., so there is no evidence for this Its better not to talk about it casually. Even if its our internal meeting today, it may affect our unity. Moreover, people who engage in basic theoretical research have achieved success in multiple seemingly unrelated fields at the same time. It is not unprecedented in the history of our country to have such all-rounders. After saying this, the atmosphere in the venue suddenly stopped. ?Those who can sit here will naturally know who Ding Gaoheng is referring to. The only aerodynamics and applied mathematician Guo Yonghuai who has participated in three major projects, including two bombs and one satellite, at the same time. On December 5, 1968, while returning to Beijing from the test base, he died in a plane crash. ??This air crash can be said to be a major setback in the field of my country''s aerospace theoretical research. After a long time, a voice sounded again: Comrade Yonghuai died in a plane crash, and the projects our new generalist, Comrade Chang Haonan, is responsible for, whether it is aero-engine stability or aircraft anti-icing, happen to involve aviation safety. It can be regarded as a kind of inheritance... ?This sentence finally livened up the dull air a little. "The airworthiness certification work for aircraft anti-icing and de-icing has been decided as follows. Factory 182 will take the lead, with Institute 603, Factory 172 and Institute 602 assisting." Ding Gaoheng tapped the table with two fingers: In addition, report to the higher authorities and ask the meteorological department and the Air Forces air traffic control unit to cooperate. As long as the aircraft takes to the sky and does not affect the safety of the route, the airspace application related to this project must be given a green light! Director Ding, there is one more thing. Just after Ding Gaoheng made his decision, a deputy director in charge of external technical cooperation came over and said: The model that 603 participated in the airworthiness certification is the MA-60. During the previous air show, AgustaWestlands technical staff had decided to cooperate with our aviation technology company after visiting and test-flying the aircraft. The specific form is to invest US$95 million and be willing to be responsible for the development and manufacturing of on-board comfort equipment, such as pressurization, air conditioning, noise suppression and cabin lighting systems, on the condition that they build a final assembly line in Naples. This condition is very sincere, so although some details have not been finalized, the opinion of the Ministry of Aviation Industry is to approve the cooperation. Then when we are dealing with such a big thing as type airworthiness certification, we cant leave Agustas people to do it on their own. It should not be said, but the Italians are good at taking sides. After confirming that the MA60 would surpass the ATR42 in the critical indicator of fuel economy, Finmeccanica Group asked its subsidiary Alenia to cooperate with the French Aerospace Company to develop new models; AgustaWestland, which is mainly responsible for the helicopter business, directly cooperates with the cash-strapped China Aviation Industry. Considering that the MA-60 is already a highly developed aircraft, the latter wisely did not make outrageous requests such as participating in the overall design of the aircraft. Instead, it took over the cabin equipment with China''s weakest capabilities. past. ??Different from civil aviation passenger aircraft and military transport aircraft, comfort is second only to safety in importance, and is probably as important as fuel economy. You may win, but I will never lose. Can Italians be this efficient? Ding Gaoheng was quite surprised. But he made a decision after just a little thought: Since its a passenger plane, theres nothing to hide. The ugly daughter-in-law has to see her parents-in-law. "I think Alenia''s technical staff can be allowed to visit the MA60''s natural icing test and listen to their opinions. However, when negotiating the contract, we must make it clear that the development of the anti-icing system is entirely by We did it ourselves, so the Italians need to follow the instructions. Yes! I will convey it after the meeting. (End of this chapter) Chapter 161 Let our planes no longer fear frost and snow (2-in-1) Chapter 161: Let our planes no longer fear frost and snow (2-in-1) Half a month later. ?Nanzheng, at the 182 Liulin Airport under the clear sky. ?Two propeller planes, one large and one small, are parked at the end of the takeoff runway, waiting for weather conditions that meet the test requirements to arrive. They are naturally the Y-8F that has been modified and the MA-60 prototype that transferred from Haojing a week ago. On their wings and tails, red, black and yellow ice thickness scales have been drawn In the case of insufficient accuracy of ice accumulation detectors, data can currently only be obtained through video and high-speed camera capture. Under the leadership of Chang Haonan and Lin Guofan, Factory 182 and the School of Atmospheric Science of Jincheng University have achieved amazing work efficiency. The former took only more than ten days to move the key area deicing system calculated by Chang Haonan from drawings to reality, while the latter has established special meteorological monitoring and control stations in Jincheng, Qinling and northern Xinjiang regions - based on the past few years. After ten years of experience, the above places are statistically the places with the highest ice accumulation frequency in the entire China. ?However, after everyone waited for a few days, the weather was cloudless and beautiful throughout the northwest. Under normal circumstances, this is the most suitable climate condition for flying, but the natural icing test flight is to "face the difficulties" and create difficulties even if there are no difficulties. The current environment seems a bit embarrassing. Everyone, check the functionality of all anti-icing systems on the aircraft again! Liang Shaoxiu held a big loudspeaker in his hand and shouted to the staff on the other side of the plane. Mr. Liang, we have inspected it three times today, especially the hot gas de-icing system. Frequent starting of the engine will also affect the service life..." ??The deputy next to him whispered a reminder with black lines all over his forehead. ?Before conducting real natural icing tests, according to the certification standards established by Chang Haonan, Lin Guofan and others, the aircraft first needs to verify the function, safety and performance characteristics of each anti-icing system in dry air. But since it has been sunny lately, this process has been done too many times. It doesnt matter, I guarantee it will be foolproof, just check it a few times and there will be nothing wrong. In fact, Liang Shaoxiu himself knew that doing this would not have any practical effect, but if everyone was kept idle, it would lead to anxiety or laziness. It was better to find something to do and exercise instead. "Chang Gong, in fact, based on our previous experience in icing test flights in North America, it is difficult to accurately analyze the characteristics of clouds in the airspace above 1,000 meters by relying on ground weather stations alone. It is best to have a weather detection aircraft to search for Suitable test airspace. An engineer seconded from Institute 602 said next to Chang Haonan. The latter rolled his eyes: The truth is this, but if you want to modify a weather detection aircraft, you need to pass the natural icing test first, and if you want to pass the natural icing test, you need a weather detection aircraft..." ?The engineer scratched his head and said nothing more. Everything is difficult at the beginning Chang Haonan changed his posture, put his hands in his sleeves, looked up at the sky at an angle of 45 and sighed. ?At this time, a piece of English with a strong Italian accent came from the side: My friends, are you really kidding me when you conduct natural freezing experiments in a place that is 1,500 kilometers away from the coastline and has no large water system? The speaker was a tall, thin Italian named Rosi Colombo, the head of the delegation sent by AgustaWestland to follow up on the airworthiness certification. Its not surprising that he thinks so. The natural environment of southern Shaanxi and the Great Northwest is indeed slightly different from the Great Lakes region of North America. ?Seeing that someone was questioning his professional ability, Lin Guofan, who was originally a soft-spoken person, immediately became furious: Of course, according to my research over the past ten years, from November to December every year, the frequency of ice accumulation in the airspace of the Qinling Mountains and northern Xinjiang is above 50%. Mr. Colombo, you have to learn to be patient, be patient! Obviously, everyone was very anxious because they were unable to conduct experiments for many days in a row. Looking at the two people who had become somewhat angry, Chang Haonan quickly reconciled the situation: Professor Lin, dont be anxious. Everything will be clear when we find the freezing weather. Mr. Colombo is not a stubborn person. Look, he has already changed his clothes. This sentence is said in English, so Colombo next to him can also understand it When he first arrived in Nanzheng a few days ago, this guy wore a serious velvet suit and insisted that it was part of his professional image. ?But within two days, he honestly put on a cotton-padded jacket with the aviation industry logo. ??Now I can very skillfully imitate Chang Haonan and others by putting their hands together to keep warm. Colombo looked down at his cotton clothes, pants and shoes, and opened his mouth without saying anything else. As the bickering between several people came to an end, the atmosphere around the runway became dull and boring again. ?At this moment, a rustling sound suddenly came from the walkie-talkie placed on a table next to it, which immediately attracted the attention of almost everyone. The signal transmission stability of this old-fashioned analog walkie-talkie is very poor. After being connected, you have to wait for a while before you can hear clearly what is being said on the other side. The Qinling Weather Station reported that it was found that icing clouds that may meet the conditions are forming at an altitude of 1200-1500m. The airspace range consists of the following five coordinate points: 106.108E, 32.473N, 105.906E, 32.459N ? Lin Guofan grabbed the pen and paper on the table next to him, wrote down the most important data on it, and then quickly gave his judgment: The designated airspace range is about 12,000 square kilometers, but judging from the speed of cloud formation, the time window left for us is not very long, and it may only be enough for one test flight. The best meteorological conditions for natural icing tests are "snowy". Therefore, if the clouds are too thick or the temperature is too low and it starts to snow, there will be no test flight conditions. Everyone looked at each other, and finally turned their attention to Chang Haonan: Comrade Xiao Chang, let me decide whether I want the YUN 8 to go up first or the Xin Ao 60 to go up first? Since the airspace is large enough and the time is short, there is no need to prioritize. I think it is better to have two aircraft test fly together. This way, the possibility of successfully collecting data is greater. The responsible comrade from Institute 603 and Liang Shaoxiu from Factory 182 looked at each other, and then nodded at the same time: Okay, lets take a test flight together! Lin Guofan next to him also raised his head at this time: I have heard from comrades in the United States before that they will have random meteorological engineers there to make specific decisions based on the actual situation after the plane arrives in the predetermined airspace? The engineer from Institute 602 was stunned for a moment, then nodded: Yes, the flexibility and judgment accuracy of the ground monitoring mode are not enough. It would be much more efficient for meteorological engineers to follow the aircraft. At this point, he hesitated again: But to be honest, the FAA made this configuration based on their in-depth understanding of the meteorological conditions in the Great Lakes region and more than ten years of experience. Our natural icing test has just started, and in terms of safety..." ?Lin Guofan waved his hand and directly interrupted the other party''s worries: "Yu Li, the FAA has been tracking the meteorological conditions in the Great Lakes region for more than ten years. I have also been tracking the meteorological conditions in the Qinling Mountains for more than ten years. If Americans can do the same thing, can''t I do it? Because Our natural icing experiments have just begun, and we need to take some risks to speed up the progress of the experiments. "Yu Qing, I have participated in the whole process of the de-icing system design of the Y-8 aircraft. Going to the sky with me can also give more confidence to the crew members participating in the test flight. Comrades Xiao Chang and Xiao Liang are engaged in aircraft design. Zhu Lan They are engaged in surface physics. Instead of letting them increase the risk in vain, it is better to let me go up and be of some use. " I have made up my mind on this matter and there is no need to mention it again. ?At this time, Colombo, who was confused, understood what happened through a translator. After a brief moment of shock and the embarrassment of being slapped in the face, he hurriedly rushed over: I want to get on the plane too! "you?" ?Chang Haonan and Liang Shaoxiu both turned their heads and looked at Colombo. ??Although as a partner, the latter, representing AgustaWestland, can get permission to take off with the aircraft, the natural icing test is after all one of the only three Class I risk subjects. One less person to go to the sky means one less risk. Dont worry, Ive done natural icing tests with the A109 helicopter, Im experienced! Colombo clapped his chest and promised: Furthermore, according to the contract, I must follow all test flight projects in order to receive the full bonus given to me by the headquarters. After confirming the crew members on each plane, the two planes that had already completed pre-flight preparations took off one after another under the command of the tower. The Qinling area is not far from Nanzheng, so not long after Chang Haonan and others returned to the tower, they received a report that two aircraft had entered the test flight airspace: It was found that there were large-scale stratus clouds in the airspace, and the weather conditions above the stratus clouds were fine, which met the basic conditions for the icing test flight. The tower commander began to issue instructions one by one according to the requirements of the test flight manual in front of him: Check the working condition of the test equipment. ?The pilots clear voice soon came from the radio: Report No. 01, all test equipment is working normally. Report No. 02, all test equipment is working normally. Turn on the atmospheric parameter detector. Checking atmospheric parameters ?This time the interval between receiving responses is a little longer: The cloud top height is 1800, the atmospheric liquid water content is 0.7g/m, and the average diameter of supercooled droplets is 35 microns, which meets the requirements of the continuous maximum icing test. Request to start vertical cloud detection. Request approval. ?Due to the lack of satellite communication means, after the plane enters the water vapor-rich clouds, the quality of the call between the crew and the tower will drop sharply. Chang Haonan and the others can only hear a squeaking noise. Vertical detection of clouds requires the aircraft to enter the cloud from above, descend to the bottom of the cloud, and then climb out of the cloud. It records the changes in liquid water content in the cloud during the change of vertical altitude and determines which altitude is most suitable for conducting the test. The entire process only lasts approximately It takes about 2 minutes, and the anti-icing system will be turned on throughout the entire process, which theoretically will not affect flight safety. ??Still, not being able to stay in real-time contact with the plane is a bit nerve-wracking. Finally, the noise on the radio disappeared. ?Lin Guofans voice reached everyones ears: The cloud base height is 1200, the liquid water content in the atmosphere is 4.5g/m, and the average diameter of supercooled droplets is 105 microns. I plan to conduct natural icing test flights at 1500 and 1200 altitudes, each lasting 15 minutes, corresponding to Category 4 and 3 anti-icing capabilities in the airworthiness certification standards. Obviously, he wanted to take advantage of the rare weather conditions in these months to complete all the test flight projects specified in the manual at once. According to the interim standards formulated by Chang Haonan and Lin Guofan, the anti-icing capabilities of aircraft are divided into 4 categories. Categories 1 and 2 correspond to imperfect ice protection capabilities, and flights are only allowed when the weather is fine and there is no risk of ice accretion or a weak risk of ice accretion. Category 3 corresponds to the icing conditions in most airspace in the northern temperate zone. Aircraft meeting this requirement can basically fly safely under all normal climate conditions. Category 4 anti-icing capabilities are equivalent to additional questions, and only aircraft expected to be used in environments with more severe ice accumulation risks need to be completed. ??The tower commander looked back at Chang Haonan who was standing behind him. The latter hesitated for a few seconds, then nodded. Test flight plan approved! After receiving the news that the plan was approved, the two planes turned around and plunged into the thick clouds. Soon, a dense layer of thin ice formed on the surface of the plane, blocking everyone''s view of the outside. Under normal circumstances, aircraft will deliberately avoid this obviously very dangerous airspace, so whether it is an engineer taking off randomly or a experienced test pilot, this can be said to be a quite special experience. ?Especially the navigator cabin on the nose of the Y-8, the 270 field of view is completely surrounded by ice. The navigator reported that he felt like he was in an Eskimo igloo. ?However, as the ice becomes thicker and thicker, the freshness gradually wears off, and the pilots already feel that the aircraft is becoming more and more difficult to control. In the cabin at the back, Lin Guofan was staring at the picture on the laptop screen, for fear of mistaking the position of the ice thickness scale. ?According to previous simulations conducted by Chang Haonan, in normal configuration and level flight, the ice thickness on the unprotected leading edge of the aircraft wing should reach 7cm to meet the test standard. The ice accumulation conditions have met the requirements, and the maneuvering flight test has begun! Since it was impossible to communicate with the tower in the clouds, Lin Guofan could only give instructions to the two aircraft together. Wait a minutethis is crazy. Colombos voice came over the radio: I just saw on the computer that the water content in the outside atmosphere has exceeded 4g/m! This... This is four times higher than the data stipulated by the FAA! You are right, Mr. Colombo, but we are not the FAA, we are CCAR. ?Lin Guofan said into the microphone in his hand. But...but why is it so extreme? There is no such extreme situation except for blizzard weather, and it is impossible for the plane to take off in a blizzard day! There was some trembling in Colombo''s voice, as if he regretted following him at this moment. Of course its for safety. Dont worry, we have the best anti-icing system in the world to ensure your safety. "Besides, it''s too late to say anything now. We can''t throw you out of the cabin." After Lin Guofan finished speaking, he did not talk to Colombo again, but directly ordered: Start to hover horizontally and steadily. The pilots of the two planes carefully controlled the rudder surfaces and allowed the planes to start a stable circling of 40 to the right. I...I saw the wing buffet of this aircraft was very large. Is it really...is there no problem? Colombo in the MA60 cabin asked the mechanic next to him with a pale face. The latter looked up calmly and glanced at the screen of the other camera, then looked back at the laptop in front of him: "It doesn''t matter, that''s our active vibration control system at work." Active vibration control? ?Perhaps because of nervousness, or perhaps because of the cold, Colombo seems particularly talkative today: "" "Yes, just like... uh, just like active noise reduction, using controllable flutter to offset uncontrollable flutter. This is also the core technology of our MA60. Haven''t you seen the brochure of our aircraft? , its all written above. Who would go to see that kind of advertising thing? You are probably the first aircraft manufacturer to make the promotional brochure and flight manual the same thing... Colombos teeth are already chattering. "It seems that we still have a lot to learn from you in this regard..." ?At the same time, Lin Guofan on another plane had operated a high-speed camera to capture all the required ice growth images. Compared with the previous computer simulation results, it is almost completely consistent. ? He breathed a sigh of relief. To say that I wasnt nervous about taking off would be a lie. In fact, until he was capturing the ice accumulation just now, Lin Guofan found that his hands were shaking slightly. ?However, the design of the aircraft anti-icing system is based on the simulation of the severity of ice accumulation at different locations. Since the simulation results have no problems, it means that the entire de-icing device should also have no problems. The circling flight and roll subject is over, turn on all de-icing systems! The atmosphere inside the control tower of Nanzheng Airport was a little anxious since it had been unable to contact the crew for nearly half an hour. ?Every second is as long as an hour ?Having confidence in the anti-icing system is one thing, but not being able to hear the pilots voice is always unsettling. Especially Zhu Lan, who was worried about her husband, had been standing in the corner like a sculpture for a long time. Unit 01 report. The sudden clear voice of dialogue made everyone look happy. The maneuvering test flight procedures in the landing configuration, standby configuration and approach configuration have been completed. The anti-icing system is working normally and fully meets the test flight qualification criteria. Our two-aircraft formation is ready to return! Zhu Lan, who was leaning against the wall, suddenly relaxed and fell directly onto the sofa next to him. Liang Shaoxiu, who had been tense for more than half a month, was completely relieved and called the deputy next to him: Notify the manufacturing workshop to replace the other three Y-8Js with new anti-icing systems as quickly as possible. The finalization schedule of the equipment must not be delayed! Chang Haonan, on the other hand, set his sights in the direction of the final assembly workshop. ?There are several other transport-8F platforms parked there waiting for delivery. He stood in front of the floor-to-ceiling windows of the tower and murmured in a voice that only he could hear: In this way, it turns out that the tragedies in history will never happen again..." (End of this chapter) Chapter 162 Medium range air-to-air ammunition Chapter 162 Medium-range air-to-air ammunition The situation is similar to the situation during the ground test of the Turbojet 14. After the Y-8 and MA-60 complete the anti-icing capability test flight, there is still a lot of desk work to be done in order to convert the interim standard into a real national standard. ?However, these matters will naturally be completed by the standard approval personnel of the Science and Technology Commission. For Chang Haonan, his mission at Factory 182 is over. ? So the day after the natural icing test ended successfully, he got on the plane to Dingxin with 70 scientific research points awarded by the system, 500 theoretical experience points and a cash reward of 20,000 yuan provided by Factory 182 - Although I have decided to participate in the two projects at the 611 Institute, everything must have a beginning and an end. The No. 05 prototype of Project 83 has already rolled off the production line and begun flight testing. Seeing that it has reached the most critical stage of finalizing the design of the J-8C, he cannot leave at this time, both publicly and privately. As for why it was Dingxin instead of returning directly to Shengjing, it is because the last test flight subject of the J-8C before the design was finalized was weapon system verification. The National Weapons Appraisal Range responsible for missile testing is located in Dingxin, which later became known as Chinas Area 51. ?When Chang Haonan''s plane landed at Suzhou Airport and taxied to the parking lot, he was startled by the huge crowd outside the port window to pick him up. ?In addition to old acquaintances in Shengjing such as Yang Fenghao, Yan Zhongcheng, and Zhong Shihong, there seemed to be many people whom he had never met before. ?Judging from their clothing, they dont even look like members of the aviation industry system. Comrade Xiao Chang, welcome back! ?Yang Fenghao stepped forward, held Chang Haonan''s hand tightly, and then looked up and down: If the comrades from the Aerospace Industry Corporation hadnt sent a special letter to express their gratitude this time, we wouldnt have known that you had such in-depth research in the field of control science and kept it hidden. The latter was stunned when he heard this, and then realized that the unfamiliar faces next to him should be comrades from the aerospace system. Engage in missiles. When he co-authored the paper on differential evolution and volumetric Kalman filtering algorithms with Xu Yang, Chang Haonan had considered that the content in it would promote the development of guided weapons in our country. After all, it is normal for various factories within the aviation system to second each other to help solve problems, but it is really not feasible to jump directly to the aerospace system while being named on the 83rd Project. On the one hand, the fragmentation between various systems in this era is quite serious, on the other hand... Even on the other side of the ocean, it is unlikely that a person would be allowed to hold core technical positions at both Lockheed Martin and Boeing. So this is the best solution he can think of as he is currently very busy. ?However, the efficiency of the Aerospace Industry Corporation did far exceed Chang Haonan''s expectations. After all, it had only been two and a half months since he last wrote a reply to Xu Yang. In the meantime, excluding the time spent by the latter on submission and review by the magazine editor, even if you count from the time the paper was accepted rather than published, it would still be at most nothing by now. It took more than a month. ?This Pili 11 was created? ?However, Chang Haonan''s doubts did not last long. Through the words of the people around him, he quickly learned the whole story. Just a week ago, the Second Bureau of Shanghai Machinery and Electronics contacted the 601 Institute and stated that they had solved the inaccurate line-of-sight angular velocity signal extraction that had troubled the Perak 11 for many years, and when the missile-machine distance was far away, the straight-wave spurious signal seriously affected the return response. The problem of wave detection sensitivity. To put it simply, one of the two problems that existed in the past will lead to inaccurate shooting - excessive guidance error, and the other will lead to the missile not being able to hit far - the semi-active radar guidance cannot be fired and ignored, so the missile loses contact with the carrier aircraft. Will directly enter the self-destruct program. The Italians are quite particular about doing business. Although China ultimately purchased only two batches of less than 80 Aspaid air-to-air missiles, Alenia''s technical staff still transferred the missile bodies, propellants and warheads. A lot of relevant technical information. In fact, there is information on the control system and seeker, but after all, we want to imitate the Thunderbolt 11 instead of replicating the Italian Aspaed. The adapted radar fire control is our own, so it is naturally impossible to copy this thing. This becomes the only part that requires technical research. In the past few years, the Second Bureau of Mechanical and Electronics and the 607 Institute have also solved a series of basic problems such as excessive noise of the continuous wave illuminator (CWI), too long time for the seeker to obtain target information, and poor cross-linking stability of missile-machine data. . In short, only the two hard bones mentioned above are left. ??So the paper published by Chang Haonan and Xu Yang was a timely help for the comrades of the Second Bureau of Mechanical and Electrical Engineering, which directly brought the Aspade imitation project that had been delayed for 8 years to see the light of day. No wonder they sent a team of nearly a hundred people to Yan Liang to directly participate in the target shooting experiment. After chatting with everyone, Chang Haonan finally saw the Thunderbolt 11 undergoing missile-aircraft matching tests next to the hangar of the flight test institute. lined up, 10 pieces in total. In the past, this was a number that could not even be dreamed of. There are currently less than 60 rounds of Aspad that can be used by the J-8. At present, it can only be adapted to the R27E of the Su-27SK, so more than a hundred have arrived, adding up to a maximum of just over 200. 10 rounds are used in one target test? Its funny, if you dare to make such a request, the chief of the Air Force will dare to jump off the building to show you. So in the three medium-range missile target shooting tests we conducted before, a total of 11 missiles were fired. Four of them missed the target. Its good to have free mid-range bullets. ?Chang Haonan stepped forward, bent down and gently touched the electrical interface of one of the missiles. Although as early as three years ago, the People''s Air Force had used the imported Su-27 and R27 to achieve the first beyond-visual-range target shooting at a distance of 40-50km, it was the first time that China''s own aircraft were used to launch China''s own medium-range missiles. . also definitely has milestone level significance. ?Standing next to Chang Haonan, Guo Liqiang, deputy chief designer of the PL-11 missile, happened to hear the former talking to himself just now. Of course no one in 1996 had heard of "xx freedom", a very common meme in later generations. This made Guo Liqiang''s eyes light up: Comrade Chang Haonans idea is very good. Medium-range bullets are free. Well, this idea is good! "In the past, although we could manufacture our own aircraft, we had to buy missiles from the Italians. Later, when they stopped selling them, they destroyed one and lost the other. Foreigners laughed at us for being ''organic and without bombs'', and it was hard for us to refute. But now, the situation is different. Our own air-to-air missiles can fire another round after firing. The Air Force can fire as many as it wants! ??Yang Fenghata, who had already walked to the other side to confirm the test results, just returned to the crowd at this time. After thinking for a moment, he called an assistant next to him: Let the publicity department pay attention and consider quoting this statement in press releases or even titles. ?Chang Haonan, who was just expressing his feelings at first, was a little embarrassed to be coaxed so suddenly. ?But he soon felt relieved. In these days when news report titles are basically limited to declarative sentences, and even the shock word has not been invented yet, just scraping out some scraps from the era of self-media will probably shock people no less than the one after the transformation. Turbojet 14 (End of this chapter) Chapter 163 Let’s try the J-8C Chapter 163 Lets try the J-8C In the hangar, an aircraft with a radome painted green has completed electrical testing and begun to hang bombs. The J-8D was officially put into service at the beginning of this year. Compared with the old model, the biggest improvement is the increased ability to receive fuel in the air. There have not been many updates in other aspects, especially the electronic equipment. The new continuous wave irradiator was replaced just to adapt to the domestic Pili 11 missile. ??The pilot responsible for this target practice is called Feng Lin. He has participated in almost all test missions since the introduction of the A-bomb. At this time, he was reporting on the pre-flight preparations to Yang Fenghata and Guo Liqiang. I still want to thank you comrades in the aerospace system for finally satisfying Lao Fengs wishes over the years. ??A captain officer at the trial training base next to him said with emotion. "ah?" ?Chang Haonan looked at the other party with a confused expression. There is a hint in this words that others are going to lose. Lao Feng will reach the age of grounding in two months. He has told us several years ago that he hopes to personally shoot our countrys own radar bombs before the grounding. ??The young captain said as he took out a cigarette, put it under his nose and smelled: As a result, this Perak 11-year-old just heard that there is such a thing, but there is no sign of it. We all thought that he could not catch up. But...hey, you came at the right time. Before Chang Haonan could say anything more to this guy who was obviously from Jinmen, the sound of the target shooting experiment getting ready to begin came from the loudspeaker. Plane No. 19 is preparing to start taxiing. Please ask irrelevant personnel to evacuate the runway area. ?Flight safety is no small matter. Regardless of the people who design airplanes or missiles, they are all irrelevant personnel at the airport. So he followed the others and retreated to the command center of the tower. For Chang Haonan, this was not the first time he watched a fighter jet take off from this position with the best view. The novelty at the beginning had long since disappeared, so his attention was quickly drawn to a piece of equipment that was considered huge in this era. CRT display attracted. The above display should be the situation detected by ground radar. Unit No. 19 has entered the test airspace and the radar is activated normally! ??On the radio, Feng Lin''s voice was unusually calm. ?The tower commander is also reporting the situation to the test pilots in real time. The drone has taken off and is expected to enter the target area in two minutes Estimated to enter the target area in one minute The drone has entered the target area and can start searching for the target! ?This time, the radio was silent for a moment before Feng Lin''s answer came: The radar failed to intercept the target, please reconfirm the target location. One sentence made everyone in the tower feel excited. ?Perak 11 is a semi-active radar guidance. If the radar cannot even intercept the target, there will be no need to conduct any weapons tests. The target is located directly in front of you at 12 oclock, 17km away. There was also some tension in the commander''s voice. ?Chang Haonan frowned slightly. He probably already remembered what the problem was. Logically speaking, this is a target shooting test of a new missile. According to the conventional process, a mature model should be used as the carrier aircraft. Wait until the missile is finalized, and then use new aircraft to attack it. But the situation of J-8B/D is quite special. ?Their seemingly huge nose is still stuffed with the ancient 208A fire control radar, and its detection capability is not much farther than the visual distance of the pilot on a clear day. Thats not all. Although the power of this radar is very low and the detection range is long, its power consumption is very high. The generator power of the old model turbojet 13 is only a pitiful 6kw, which is not even enough to provide power at the same time. The radar and the improved continuous wave illuminator provide enough power... In short, based on past or future experience, the ultimate working distance of this combination after it goes to space is just over 10 kilometers. Although it has barely reached the threshold of "beyond visual range", its practical significance is not very great. The ultimate range of Thunderbolt 8 is 15 kilometers... ? In short, the effective range of the Thunderbolt 11, which is about 40 kilometers, is completely wasted. Even from an exam perspective, it is difficult to pass. Since it takes several seconds from the radar interception of the target to the launch of the missile, if the interception distance is only a little more than 10 kilometers, there is a high probability that by the time the missile is launched, it will not meet the minimum shooting distance requirements in the assessment project... ?At this time, Feng Lins report also verified Chang Haonans guess: 12km, radar captures target! Obviously, it is not that the radar is faulty, but simply that its performance is too poor. A few seconds later, Feng Lins voice sounded again: Missiles ready! But at this time, the target distance displayed on the big screen was only 9km. ??The tower commander had no choice but to order: The launch distance does not meet the test requirements, the launch procedure is aborted! Missile target testing is not a one-time deal. As long as both the missile carrier aircraft and the target drone have sufficient fuel, the test can be repeated multiple times. However, until the target aircraft ran out of fuel and crashed, Feng Lin''s No. 19 aircraft failed to complete the target lock at a distance of 15km three times in a row. Ten minutes later. ??The No. 19 aircraft carrying two PL-11 missiles landed on the runway of Dingxin Airport and was towed back to the hangar by a tractor. Staff from Institute 601 and the Second Bureau of Electrical and Mechanical Engineering came here again, but the atmosphere at the scene became much more depressing than about an hour ago. ??When Feng Lin climbed out of the cabin, even Chang Haonan standing far away could feel the regret in the old pilot''s mood. Under normal circumstances, it takes several months from the time a target test fails to the time the problem is identified, solved, and then the next target test is conducted. At that time, Feng Lin, who had reached his age, obviously no longer had the opportunity to participate in the experiment. Mr. Yang. Chang Haonan squeezed through the crowd and came to Yang Fenghao, who was about to communicate with the pilot: The failure of this target test is obviously a problem with the aircraft. The output power of the continuous wave irradiator is not enough, which makes it impossible to intercept the target at a long enough distance. In this case, why not just let our J-8C prototype shoot this bomb? Feng Lin, who looked gloomy, naturally brightened up. If he just changed the plane and re-tested, it should not take a few days before he would have a chance to realize his wish. ?Yang Fenghata just lowered his head and thought silently. The people on both sides of the Mechanical and Electrical No. 2 and No. 607 Institute looked nervous. After all, the problem was on their side. But if the new machine is equipped with new ammunition..." The leader of the trial training base next to him was a little hesitant. The last time they equipped the new aircraft with new ammunition, they used the J-8B to test-fire the Aspider. As a result, all three shots missed the target, which has left a psychological shadow... Chang Haonan also knew that his proposal seemed a bit out of tune, so he found a small blackboard from the side and repeated the analysis he just made while writing. Finally, he specially concluded: "The J-8C is not only equipped with the 1471G radar with better performance, but more importantly, the turbojet 14 after our improvement can drive a generator with a power of up to 18kw, and the two generators have a total power supply capacity of 36kw, which is the current power supply capability of the J-8C. Three times the size of 8D! Sufficient power supply is also the main reason why I think the J-8C is fully capable of serving as a target test carrier! These two sentences became the last two straws that affected the decision-making. ?Yang Fenghao thought for a moment and nodded slowly: Even if the worst happens, its just another remaining bullet. Theres nothing to worry about! Remaining bomb section is an optimistic statement from the trial training base regarding the result of the aircraft landing with bombs due to failure to complete the test. Lets try the J-8C. (End of this chapter) Chapter 164 Thunderbolts shook the sky! Chapter 164 Thunderbolt shook the sky! As preparations for the new test began, the trial training base became busy again. The missile-machine adaptation work that was done on the No. 19 aircraft had to be done again on the No. 05 prototype parked in the hangar next to it. In particular, the 1471G pulse Doppler radar on the J-8C is basically a product of two eras from the monopulse radar on the older model. Not only is the main beam completely different, but the arrangement of the continuous wave illuminator is also very different, so the radar needs to be analyzed separately. Perform compatibility debugging with CWI-F. This is also a new challenge for the ground staff at the trial training base. Until three o''clock in the afternoon of the next day, with the cooperation of multiple units such as the 601st Institute and the 14th Institute, the No. 05 prototype of the J-8C finally completed all preparations for the target test overnight and mounted two test missiles. Use bombs to prepare for takeoff. The test pilot is naturally Feng Lin. Since this is the first round of target testing, for the sake of safety, the scheduled launch distance this time is still 10-15km, and the targets are still two conventional HB170B subsonic unmanned target drones. ?This model can carry corner reflectors, has sufficient RCS area, is easy to be intercepted by radar, and its flight altitude and flight speed are within the most comfortable killing range of most anti-air weapons. It is a basic subject in training and testing. ?Although in Chang Haonan''s view, it is a bit overkill to let the combination of J-8C and Thunderbolt 11 fight this kind of thing, but everything must be done step by step, and you can''t just shoot the supersonic physical target drone right away. Although several prototypes of Project 83 have undergone multiple rounds of test flights and even made a splash at the Xiangzhou Air Show, the trial training base has only tested the No. 03 prototype without major modifications before. After all, things seen on TV are not as intuitive as in person. ??So today Feng Lin''s crisp take-off action with bombs still aroused waves of admiration in the tower command center. ?Of course, for everyone in Institute 601, especially Chang Haonan, this kind of situation has been seen too many times. ??Everyone didn''t even have any mood swings, they just stared at the CRT monitor showing the empty situation information. Unit No. 05 has entered the test airspace and the radar is activated normally! ?All preparation procedures seem to be exactly the same as last time. ??However, experienced commanders are still keenly aware of some subtle differences. ?For example, the pilot reported that the radar had been activated about two minutes earlier than before, so that the target aircraft had just completed preparations for takeoff at this time. So, we had to wait for a while before reporting the target situation to the pilot: The drone has taken off and is expected to enter the target area in two minutes! "receive!" Everything seems to be back on track. ?However, a minute later, when the commander made the second report on the radio, the situation changed somewhat. The drone is expected to arrive in one minute Unit No. 05 reports, 35km, radar intercept target! ??The commander who was interrupted mid-sentence held the intercom in his hand and was stunned for about a second. He has been working as a tower commander at the trial training base for nearly 10 years and has never encountered such a situation. The distance of 35km did not surprise him. After all, when the Su-27 was shooting targets before, he found that the target was even much further away. ??The key is the angle. Generally speaking, the search range of a fighter jet radar is a sector with the aircraft nose as the center. For mechanical scanning radar, the search capabilities of different areas within the sector range will not differ much. But target tracking, or target interception, is different. ?This process requires that the center of the radar beam always illuminates the target, and the illumination angle of the beam changes as the target moves to obtain the angle information of the target relative to the radar antenna. When the target is on the line of sight, which is the axis of the fuselage for most fighter jets, the angular tracking error is 0. The greater the deviation from the axis, the lower the tracking accuracy and the greater the difficulty of interception. ?When Feng Lin reported intercepting the target this time, the target drone was still at about 40 from the No. 05 prototype, and its altitude was also more than a thousand meters lower. It can even be regarded as a target shooting test while looking down. When radar detects mid- and low-altitude targets that are lower than itself, it will be interfered by ground clutter, and it will be more difficult to intercept the target. Therefore, downward shooting is generally completed as an advanced subject. ??Just by chance, the combination of J-8C + Thunderbolt 11 made it more difficult for them to fly into the sky for the first time. To say that the Air Force of this era does not have much experience, the trial training base has only tested two aircraft with beyond visual range combat capabilities, the J-8B/D and the Su-27. Not to mention the performance of the former''s 208A radar, it has proven through yesterday''s 12km target capture that it is completely unable to adapt to the actual combat needs of the 1990s. ??The latters N001 radar detection range is indeed far enough, but other than that, it has no particularly outstanding advantages... So except for Chang Haonan, no one could have expected that the target acquisition process of this target test would be so smooth. In fact, this is one of the many benefits of installing a new engine. In addition to more abundant power, better engines can also drive high-power generators to provide more abundant energy for airborne equipment. Increasing power cannot solve all problems, but if you want to solve any problem, you must have enough power as a guarantee. ?This thing is the same as the power supply when assembling a computer host. I can do without it, but you cant live without it. ?The power supply is large enough, and the freedom of DIY is large enough, so that we can afford high-performance processors and graphics cards... In short, Huaxia Aerospace engineers in 1996 had not yet experienced the pleasure of abundant power supply, and they were still fussy about subsystem energy consumption design. In addition, the sudden explosion of the turbojet 14 was not originally included in the August 3rd Project Plan. ??The result is that more than half of the total 36kw power generation power on the current full version of the J-8C is actually not used. Even so, it is enough to give everyone in the trial base a long experience. The shock left to everyone did not end. Before the tower commander could make any response, Feng Lins voice came over the radio again: Missiles ready! ?From the radar intercepting the target to the continuous wave illuminator starting to work, to missile preparation, the entire process took less than half the time before. Obviously, everything has improved a lot compared to the last trial. ?? Guo Liqiang, the leader of the Second Bureau of Electrical and Mechanical Engineering, stood behind the commander, not even daring to take a breath. His hands clenched into fists were hidden in his sleeves, but both sleeves were trembling slightly. Unit No. 05, the target has not yet entered the missile envelope, waiting for the launch order! ?The commander finally reacted and issued the first such order in his life Although the on-paper range of the Thunderbolt 11, or Aspad, is almost 40km, this number is the theoretical data that can be achieved when the carrier aircraft and the target fly relative to each other at 1.2 times the speed of sound at an altitude of 10,000 meters. At present, the height of the No. 05 aircraft and the target drone are below 5,000, and the speed is maintained at subsonic speed. 35km is obviously beyond the reach of this kind of missile. In fact, as a model whose main research and development work was completed in the late 1970s, Aspad has indeed fallen behind in these hard indicators. ??Its just that the performance of the radar provided by China was too poor, so it didnt even bother to pay attention to the effective range of the missile itself. About half a minute later, Feng Lin finally received permission to shoot. ?A missile was ignited from under the wing of No. 05 aircraft, then quickly flew away from the pylon, and flew towards the distant target under the guidance of the signal provided by the continuous wave illuminator. ?The target test area is not far from the airport, so ground radar can track the entire process. ?Under the gaze of hundreds of pairs of eyes in the tower, the signals representing missiles and the signals representing target drones got closer and closer, eventually overlapping together and scattered into several randomly scattered targets. hit. (End of this chapter) Chapter 165 The future development of Thunderbolt 11 Chapter 165 The future development of Thunderbolt 11 The target test naturally cannot end with just one shot. So a second target drone took off immediately afterwards. ?Even at the request of Yang Fenghao and Guo Liqiang, the trial training base further lowered the target''s flight altitude. But it was still accurately hit with almost the same process. The target drone confirmed the shootdown! ??As the commander''s voice sounded, thunderous applause erupted in the tower command center. Medium-range interception capability up to 25 kilometers. If we talk about the range alone, it is only at the level of the United States and the Soviet Union in the 1960s and 1970s. But it means that Chinas aviation industry has truly broken through the threshold of beyond visual range air combat. Although more advanced active radar-guided air-to-air missiles that can fire and forget to a certain extent have emerged, the AIM120 and R77 were in service in 1991 and 1994 respectively. It is only a few years ago that fighter aircraft from various countries have The main weapon is still the same semi-active radar guidance model as the Thunderbolt 11. Whats more, these 25 kilometers were shot while looking down. So overall it is not considered backward. Thank you so much. Finally relaxed, Guo Liqiang turned around and shook hands with the test participants from Institute 601 one by one. He stayed in Chang Haonan for a particularly long time. The trial training base is a place where the media does not often appear, so many of the innermost thoughts can be said without any scruples. Comrade Xiao Chang, although you have not directly participated in the research and development of Thunderbolt 11, you can definitely be regarded as our great hero and savior! Halfway through speaking, Guo Liqiang''s tone even choked with sobs. ?This is definitely not a fake mood swing. Like almost all units in the military industry, the Second Bureau of Mechanical and Electrical Engineering has not been having an easy time in recent years. The only way they can change their fate is to develop the Thunderbolt 11 and then export it with Chinese fighter jets. ?In the arms trade, ammunition is certainly not as conspicuous as equipment, but in terms of profit margin and transaction volume, the former is often the largest. After all, the contract price of an aircraft includes maintenance for the next few years or even more than ten years. If the customer is not willing to upgrade the model, it is often a one-time deal. But the ammunition is different. ?That is a consumable item. Even if there is no war, maintaining basic training consumes a lot every year. For most countries that do not have decent military industrial capabilities, if they want to replenish their supplies, they can only buy from the original sellers. So Pili 11 can become a cash cow for the Second Bureau of Electrical and Mechanical Engineering. ?Of course, the premise is that there must be relatively advanced fighter jets that can be sold. Otherwise, if someone buys a bunch of Q-5s or J-6s, they wont consider mid-range ammunition at all. Correspondingly, the aviation industry system will also benefit from the finalization of Thunderbolt 11. After all, it is already the mid-to-late 1990s, and fighter jets without beyond-visual-range air combat capabilities can no longer find much market. All in all, everyone is happy. That evening, everyone who participated in the test held a small celebration banquet in the guest house of Dingxin Base. After drinking for three rounds, Chang Haonan himself felt fine, but looking at Guo Liqiang next to him, he seemed to be a little unable to stand. ?If the drinker is in the mood, it will definitely be useless if you just tell him not to continue drinking. So while the latter was still awake, Chang Haonan pulled him directly to the door of the guest house and chatted about missile-related topics. Mr. Guo, there must be no problem with this target test of Pili 11. I wonder which direction you are going to go next? After hearing what was serious, Guo Liqiang put down his glass of wine and seemed to have sobered up more than half: Well... the development of semi-active radar guidance should have come to an end, so my initial idea is to replace the seeker and further develop two models, B and C. Type B is infrared guidance and type C is active radar guidance. In addition, the current range of 40 kilometers is too short. If new propellants can be replaced, it should not be a problem to extend it by another 50% on this basis. "Um" Chang Haonan thought for a moment after hearing this. In fact, Guo Liqiangs judgment on the general direction has no problem. Increase the range and upgrade the guidance method. This is exactly what Ermao has done to improve the R27 series missiles after the alliance disintegrated. The final products of the latter, the R27AE and R27EM, have actually undergone earth-shaking changes compared with the earlier models. But God is not as good as man. Just as the R27 cannot compete with the R77, which has a higher starting point, no matter how much it is modified, on the Chinese side, the 612 Institute of Air-to-Air Missile Research Institute in Luoyang has already begun research on active radar guidance. Technical preliminary research. According to the historical process, Dong Bingyin, the chief designer there, should be collecting R77 technical information from the Signal Flag Design Bureau at this time, and after eliminating the unnecessary and unnecessary, applied it to the model he was responsible for, and finally came up with a better version around 2006. The PL-12 active radar-guided air-to-air missile. Now that Chang Haonan exists, this process will only become faster. The foundation of the PL-11 is essentially equivalent to that of the AIM7. If you want to compete head-on with the PL-12, there is basically no hope, even if the active radar seeker is replaced. The only way out is to change the track. ?Thinking of this, Chang Haonan organized his language a little: I wonder if you have ever considered expanding the application scenarios of Thunderbolt 11? "How to say?" ?Although Guo Liqiang is considered a person from the aerospace system, Chang Haonan has indirectly helped a lot, so he is also willing to listen to the latter''s opinions. Its not just air-to-air missiles that are in short supply now. ?Chang Haonan picked up the cup and took a sip of the white grape juice that Yao Mengna had just secretly replaced. Then he stretched out his other hand and took inventory one by one: "The Air Force''s airport air defense force only has twin 37 anti-aircraft guns and pitifully few red flag 61 anti-aircraft missiles with outdated performance. They can completely develop a missile similar to the red flag 7 but with a lower cost based on the Thunderbolt 11. Short-range air defense missiles are provided to the air defense missile troops of the Air Force. "In addition, the PL-11 is relatively large among air-to-air missiles, which is a disadvantage. But if we change the idea and replace the missile with a passive radar seeker, it can become a missile with a larger range by virtue of its larger warhead. An anti-radiation missile of about 40 kilometers, and it is very fast. Even if it is not as good as the Hamm, it is definitely better than the Moxa. " "besides" At first, Guo Liqiang just regarded it as a casual chat between colleagues. However, as Chang Haonan talked more and more, his expression gradually became serious. In the end, he put down his wine glass, took out a notebook and took notes seriously. . (End of this chapter) Chapter 166 McDonnell Douglas, gone? Chapter 166 McDonnell Douglas, gone? Just when Chang Haonan and Guo Liqiang were chatting animatedly, Yao Mengna suddenly hurried out of the guest house and patted the former on the shoulder. Senior sister? ?Chang Haonan turned around, and what caught his eye was Yao Mengna''s pretty face that looked a little red under the influence of alcohol. ?But the latter is talking about business this time: The teacher just called and said he was looking for you. "Find me?" ?Chang Haonan was stunned for a moment. After sorting out the cause of the accident of the Y-8 prototype, Du Yishan did not stay in Nanzheng for long, but quickly returned to BJ. The subsequent work of determining the airworthiness certification standards was mainly completed by him and Lin Guofan. of. It is normal for the J-8C to complete such a big target test for the first time. It is normal for the old man to call and congratulate him. However, the news of the successful target test should not be spread back to the capital so quickly. Secondly, it is already past ten o''clock in the evening. Indeed, Some are too late. ??The last time Du Yishan called him at night was at the Xiangzhou Air Show, and he called him directly to Nanzheng. ?Thinking of this, Chang Haonan immediately said goodbye to Guo Liqiang, who was more than half sober, and followed Yao Mengna to the mailroom of the guest house. Dingxin is actually a unit affiliated with the military, so all external communications are internal lines, and basically any phone call has a sufficient level of confidentiality. Hello, teacher, I am Chang Haonan. ?Du Yishan on the other side of the phone was straightforward. "Xiao Chang, not long ago, we received a piece of news. Boeing and McDonnell Douglas announced their intention to cooperate. Both parties agreed to complete the merger and acquisition in the form of a share exchange. McDonnell Douglas will become a wholly-owned subsidiary of Boeing." For most Chinese people who pay attention to the aviation industry, and even most people, this is an unexpected thing. After all, these two companies hold too important positions in the field. Although McDonnell Douglas''s global market share has declined rapidly since the 1990s, and has now dropped to about 10%, even ranking below Airbus, which came from behind, but it is still an established aviation giant, and the centipede will not die. , the foundation of technical strength and influence is at least still there. More importantly, the F15 and F18 fighter jets developed by McDonnell Douglas are also the absolute main force in the equipment sequence of the U.S. Air Force and Navy, as well as many other important models such as KC10 and MD95. In addition to aircraft manufacturing, McDonnell Douglas actually provides financial services in the aviation field, including aircraft manufacturing financing, equipment leasing, etc. Many aircraft manufacturing companies in countries with certain aviation industries, such as Brazil, Canada, South Korea, etc., require high-level services. Rely on services from McDonnell Douglas to stay afloat. As the acquirer, Boeing now occupies more than 60% of the world''s civilian passenger aircraft market share. After merging with McDonnell Douglas, its position in the military aviation field will be comparable to Lockheed Martin, and it will be promoted to a horizontal player. A super giant enterprise spanning the military and civilian fields. ? No matter from which aspect you look at it, this incident will cause a major earthquake in the industry. Therefore, even though he had already returned from a meeting with the Commission of Science, Technology and Industry for National Defense, it was not difficult to feel Du Yishan''s shock from his tone. After hearing the news, Chang Haonan''s first reaction was to turn his head and look at the calendar hanging on the wall of the mail room. December 15, 1996. Obviously, the storm he has caused is not enough to affect the United States, so this day has not changed. Boeing acquires McDonnell Douglas? ?Chang Haonan tried to put some shock in his tone. ?However, this incident was expected for him after all. It is difficult for someone without professional training to fake that feeling. Moreover, he had drank a lot just now, which also reduced his ability to mobilize emotions. In short, the tone of this sentence is a bit strange. Chang Haonan then added his own judgment: "It seems that the Americans are determined to integrate the domestic civil aviation industry and are ready to compete with Airbus." You dont seem particularly surprised by this? Du Yishan didn''t think too much about it. He simply felt that he, a student, was a little too calm when facing the news. Fortunately, Chang Haonan has already thought of his words in this regard: "Well, last month, McDonnell Douglas lost to Boeing and Lockheed Martin in the Joint Strike Fighter (JSF) project selection, and failed to be shortlisted for the final demonstrator stage. I think this was the last step that broke the camel''s back. It was a straw, but at that time I was not sure who McDonnell Douglas would eventually sell himself to. ?McDonald''s ability to sustain itself was largely due to large orders from the US military. ??However, they are now completely excluded from JSF''s large-scale project, which is conservatively estimated to have a budget of hundreds of billions of dollars. They are not even allowed to drink soup. This is a very heavy blow to the company and investors. More importantly, a decision that can be approved by the Congressional Budget Agencies is inherently a gesture. They were ready to give up on McDonnell Douglas. Well, your guess is right. This matter has a great impact. The Committee of Science and Technology, the Ministry of Machinery Industry and the Civil Aviation Administration may not be able to sleep in the next few days. Du Yishan on the other side of the phone rubbed the corners of his sore eyes. The several consecutive meetings in the afternoon were already too much for him as an old man, so he decided to finish talking about the most important things quickly and then go to rest: After you finish your work in Dingxin, you will come back to the capital first. Director Ding from the Science and Technology Commission wants to meet you. "see me?" This was somewhat beyond Chang Haonan''s expectations. Even though he had already met the more senior leaders when he was in Shengjing, judging from Du Yishan''s words, it seemed that Director Ding Gaoheng wanted to talk to him alone. ?This is a completely different concept from meeting during a meeting or ceremony. Yes, in fact, Director Ding had this idea after you took out the aviation engine total pressure distortion evaluation guide and expressed your intention to establish an independent aviation industry system. Du Yishan did not say clearly that the other party was listening when he made the call, although Chang Haonan had already guessed: Its just that at that time, all parties had not yet reached a unified opinion on this matter, and many people were even making some small moves behind the scenes. We were worried that it would have an impact on you, so we put it on hold for the time being. "Now the general direction above has been basically set. In addition, this time McDonnell Douglas was suddenly acquired by Boeing, which will definitely involve some issues in the production of domestic MD90 passenger aircraft. It is difficult to explain things that are too complicated on the phone, so Director Ding thinks we should talk to you directly." Chang Haonan took a deep breath after hearing this. It would be a lie to say that I am not excited. In the past period of time, he has indirectly changed the historical direction of many things through technological means. ?However, the efficiency is always relatively low, and it is not completely controllable. ?This time the situation is different - ??Although he has no official status at this time, it can only be an informal private meeting. But there is no doubt that six months after his rebirth, he finally got the opportunity to directly influence the direction of decision-making for the first time. Good teacher. Dingxin just completed the first target test of the J-8C against the Thunderbolt 11 today. Two shots hit two, and it was a complete success. I dont need to follow the whole process for the subsequent tests. I will try my best to fly back to the capital tomorrow. (End of this chapter) Chapter 167 I have to gather some wool no matter what. Chapter 167 I have to collect some wool no matter what The afternoon of the next day. Beijing, in the office of the Director of the Commission of Science, Technology and Industry for National Defense. Ding Gaoheng was looking at several meeting minutes on the desk in front of him with a frown. Obviously, he was in a bad mood, and the air pressure in the room dropped a little because of it. ??A secretary-looking person stood cautiously next to him, holding several other documents in his hand, wondering whether he should hand them over. As a cadre with a technical background, Ding Gaoheng has a good temper, and even seems to lack of decisiveness in some matters. It must be an unusual thing to make him so angry today. Just leave the documents with me and go and rest. After hearing this, the secretary finally breathed a sigh of relief, gently put the documents in his hand on the corner of the table, and quickly turned around and left the office. TMDwhat a bunch of useless trash! ?After the secretary closed the door, Ding Gaoheng punched the table in front of him. ??The old comrade leaned back on his chair slumpedly and let out an extremely rare blow. ?Until the cigarette in his hand was almost burnt out, he straightened up again, put out the cigarette **** in the ashtray, then picked up the documents that the secretary had just put on the table and started to read them again. Sigh...they will have to wait and see for themselves day by day. Self-reliance is probably no longer a factor in their minds. Ding Gaoheng shook his head and sighed helplessly. As the director of the Commission of Science, Technology and Industry for National Defense, there are some things that he cannot decide alone. Especially when it comes to the civil aviation industry, the problem of bullish management is quite serious. Although he can rely on his own background and the special status of the Science and Technology Commission to dominate it, no matter how hard it is, a ministerial-level unit cannot truly Make it clear. ??More importantly, Ding Gaoheng, who is a precision instrument professional, knows almost nothing about international trade and business regulations. Based on his own intuition, he believes that as the fastest growing market in the world''s civil aviation industry, China will definitely suffer a big loss if it does nothing about Boeing''s merger with McDonnell Douglas. But if we really want to say that we can do something, there really is no idea. The only thing that makes him feel lucky is that a few months ago, due to the aero-engine stability evaluation standards, the civil aviation industry''s "self-centered" development policy was smoothly determined. Taking advantage of the establishment of an independent standard system, the above-mentioned The focus of the mainline aircraft project in Shanghai has changed from the complete introduction of the American civil aviation industry system to the digestion and absorption of technology, and the accumulation of experience in the assembly and manufacturing of large civil aviation aircraft. Because of such changes, the higher authorities stopped a huge investment of nearly 1 billion, which was able to recover some losses. ??Just when he was distressed about this matter, there was a knock on the door of the office. "Come in!" Ding Gaoheng took two deep breaths and prepared to put away the documents on the table. ??It''s just that this movement stopped halfway. The one who pushed the door open was naturally his secretary. But there were two other people standing outside. One of them is Du Yishan. ?Following him was a young man who was dressed inconspicuously, wearing a work uniform that seemed to be issued by the aviation industry. ??Although I have never met him before, it is not difficult to guess the identity of the other party. "It''s Lao Du." Ding Gaoheng, who recognized the person, finally showed his first smile since this afternoon, and re-spread the half-received documents on the table. Yes, I guess you are getting angry in the office right now. ?Du Yishan took off his cotton coat and hung it on the hanger by the door. At the same time, he also gave up half of his body to Chang Haonan behind him: This is Chang Haonan, my student, the previous guide for the evaluation of the inlet total pressure distortion of aviation turbojet and turbofan engines, as well as the operation and certification standards for aircraft natural ice accretion tests, and..." Okay, okay, how can I not know this? Ding Gaoheng waved his hand, interrupting Du Yishan''s spell-casting chant, and then turned his eyes to Chang Haonan. Comrade Xiao Chang, your name has appeared very frequently in my place during this period. I dont even need Teacher Qi to introduce it, I can recite it by heart! Hello, Director Ding, its an honor to meet you here. The past six months since his rebirth have been more colorful for Chang Haonan than the previous forty years, so he has now experienced many battles and has seen a lot. So much so that in front of the director of the Commission of Science, Technology and Industry for National Defense, he had to deliberately disguise himself to appear a little reserved. Ding Gaoheng motioned for the two of them to sit on the sofa next to him, then asked his secretary to pour two glasses of water, and then got down to business: I wont say too many polite words. I asked Old Duterte to call you here this time because I want to hear what you think about the Boeing and McDonnell Douglas matter. Chang Haonan already knew the theme of this meeting as early as last night. Moreover, Ding Gaoheng''s background also determined that he was not a person who liked to meander, so he almost did not hesitate to say that he had already organized it in his mind. Content: Overall, this is definitely a bad thing for us. The development level of my countrys aviation industry, especially the civil aviation industry, is still relatively low. Although there is great market potential, in a short period of time, the civil aviation market will definitely be dominated by foreign aircraft models. In this case, the merger of Boeing and McDonnell Douglas will, on the one hand, cause us to lose a major model supplier, and on the other hand, it will make Boeing even more dominant, and may even squeeze out Airbus and completely monopolize the market. possible! In fact, Chang Haonan, who understands the development of later generations, certainly knows that Airbus has developed extremely rapidly after entering the 21st century and will not really be overtaken by Boeing. On the contrary, it has a tendency to overtake Boeing in the field of passenger transportation. But at this time, he naturally had to be as alarmist as possible. Sure enough, after hearing Chang Haonans judgment, Ding Gaoheng nodded slightly: This is exactly what Im worried about. If one day we can only buy passenger planes from one company, Boeing, wouldnt it mean that we have to agree to whatever price they want? But it seems that we cant do anything about this matter. After all, Boeing and McDonnell Douglas are both American companies, and the merger is a family matter..." Hearing these words, Chang Haonan knew that it was time for him to play his role. Ding Gaoheng obviously wanted to do something subjectively. Just go with the flow. ??Although he is not proficient in the business field, he is still clear about the general direction of the Boeing-McDonnell Douglas merger. There is actually a lot of room for maneuver here. So he quickly replied: Director Ding, it is true that they are two American companies, but this cannot be considered an American family matter. ?Sure enough, Ding Gaohengs eyes lit up. ?Chang Haonan continues to strike while the iron is hot: We are not the only ones affected by this incident. The reaction and actions from the Europeans will definitely be greater. This time, we have allies! (End of this chapter) Chapter 168 Some people are just arrogant Chapter 168 Some people are just arrogant In the original timeline, there was an extremely exciting and intensive game between the EU and the United States regarding Boeing''s merger with McDonnell Douglas. Although the European Union at this time was still very immature, with no euro even issued and only 15 member states, the fighting power that broke out under the ideal of European integration was extremely strong. European countries were riding on the wind of victory in the Cold War and were very ambitious, feeling that as long as It is not a problem for Europe to unite and be on an equal footing with the United States on the other side of the ocean. Under the guidance of this kind of thinking, the EU certainly cannot sit back and watch Airbus''s two main rivals merge into one and concentrate their efforts against itself. Therefore, although Boeing and McDonnell Douglas have no subsidiaries in Europe, the European Commission Jurisdiction was exercised on the grounds that the merger and acquisition parties were selling products to airlines in the EU and would have a significant impact on the European Economic Area''s large business jet market. The United States believes that according to the EU-US agreement of that year, the Federal Trade Commission should decide whether the merger is feasible, and the European Commission needs to respect the decision to unconditionally approve the merger. There are no certain rules for the application of laws outside the territory. It is always a matter of public opinion and public opinion. The final result still depends on negotiation, or the outcome of the game. In the Boeing-McDonnell Douglas merger case, faced with the EU''s obstruction, the United States was even prepared to retaliate by restricting flights and detaining airliners. Not to be outdone, the EU also threatened to impose huge fines on Boeing''s business operations within the EU. There is even a complete ban on the registration of Boeing aircraft in EU countries. ??The final result is nothing more than a step back for both parties. The EU approved the merger of the two companies to proceed normally, while Boeing made a series of commitments to prevent restrictions on competition, including huge concessions in the market and technology patents. Do you think Europe will turn against the United States? ?After hearing Chang Haonan''s statement just now, not only Ding Gaoheng, but also Du Yishan, who had been sitting next to him and had been drinking tea, showed a somewhat surprised expression. "Of course it will. The biggest victim in this matter is the EU, and they will definitely not be willing." Will this merger fail due to the EUs opposition? But both Boeing and McDonnell Douglas have already announced it? ? Ding Gaoheng spoke much faster than before, obviously very interested in this issue. "Well...that shouldn''t be the case, but the EU will definitely put forward corresponding conditions to obtain sufficient benefits for itself in this merger, and this should also be the direction we strive for." Chang Haonan did not speak too harshly. After all, according to his professional background, making some directional predictions can be regarded as knowledgeable or exhaustive, but if everything that happens later is explained clearly It''s obvious, but it''s hard to explain. So we still focus on aspects related to the aviation field: Compared to the EU, we still have fewer bargaining chips, but after all, we hold such a huge market in our hands, and there is no reason for Boeing to be manipulated by Party B. "Now Airbus is developing rapidly, and the Tupolev Company in Russia is also actively looking for foreign users for new models such as Tu-204 and Tu-334. Of course, we cannot really turn to Europe. Or Russia, but its okay to use them to pull some strings with Boeing. What about the specific method of operation? Under what name will we or the EU use to interfere in the domestic commercial activities of the United States? Ding Gaoheng asked very detailed questions, which showed that he really wanted to find an opportunity to harvest some wool for China. ?However, Chang Haonan on the sofa next to him felt more and more strange. At the beginning, he felt that those rather basic questions were testing himself. But after several back-and-forth exchanges, we found that this was not the case. ?The other party seems to be really unclear about many things. Consulting in this era was far less developed than in later generations, and there were huge information barriers between different majors or industries. ?Moreover, the Cold War has only ended a few years ago, and the thinking of most people, especially the older generation, is still stuck in the era of confrontation between East and West. ?Hence, it is normal for Ding Gaoheng, an old engineer who has been engaged in technology for half his life, not to know much about the competitive relationship between Europe and the United States, as well as these business rules. ?However, nearly two days have passed since the official announcement of the merger between Boeing and McDonnell Douglas. Whether it is the Commission of Science, Technology and Industry for National Defense or other relevant departments, there must have been relevant discussions or meetings on this matter. Logically speaking, there should be consultants or experts who specialize in this area to give relevant advice. Even if these people are limited by the factors of the times, they cannot be as accurate in everything as the reborn Chang Haonan, but at least they will not let a person of the level of the director of the Science and Technology Commission not know everything. ?Chang Haonan raised his head slightly and let his eyes naturally scan the surface of Ding Gaoheng''s desk. ?There is a pile of papers spread out there. ?Although I cant see the specific content clearly, I think it must be related to this merger and acquisition incident. Its very strange anyway. But he couldnt ask directly, so he could only use a circumstantial approach: I think the best place to start is with antitrust or anti-unfair competition regulations. As long as Boeing and McDonnell Douglas conduct business in a region, they must abide by local competition laws, otherwise they will face fines or market restrictions. "But for something more specific, I think... there should be more professional people responsible for making suggestions, right?" Sure enough, when Chang Haonan said these last words, Ding Gaoheng''s brows suddenly frowned, revealing a trace of imperceptible sullenness. He did not answer immediately, but looked down at the meeting minutes on the desk in front of him. After a long while, he raised his head again. Lets take a look, the suggestions given by more professional people are all here. As he spoke, he picked up a few documents from the table, sorted them out and handed them to Chang Haonan. There is no title on the cover, only the classification level, but there is no top secret. Except for one secret, everything is secret. This shows that these are only consultations and discussions at the ministry level, and no final decision has been made to be reported to higher levels. ?Of course, even if that kind of thing is formed, Chang Haonan will definitely not be able to see it at present. He opened one of them. Du Yishan, who was next to him, also came over. The master and apprentice frowned almost at the same time. Then the second, third... The frown deepened. Looking at the several documents in front of him, Chang Haonan finally understood. Not only did I understand why Ding Gaoheng was already keenly aware of the room for maneuver in the Boeing-McDonnell Douglas merger, but he also acted as if he had no understanding of the matter. I also understand why China in the previous life did not respond to this incident, and even continued to invest in the MD90 manufacturing project after the incident. Some of the conclusions given in these meeting minutes are really outrageous. After some analysis, I believe that given the current balance of power between China and the United States, it is barely appropriate to judge that it is not appropriate to respond to this matter. In fact, if we dont consider that the EU has made such a big move, this response cannot even be said to be wrong. But there are still people who think that the merger of Boeing and McDonnell Douglas is a good thing for China? Some even said that they should support the merger decision of the two companies in exchange for Boeing''s continued support of McDonnell Douglas'' aircraft production line in China. They even believed that if additional investment could be continued, there would be a chance to replace the MD90 production line with the more promising Boeing 737 Production line. Chang Haonan almost laughed when he saw it. ??If this kind of person doesn''t have a problem with his brain, then he has a problem with his butt. ?McDonnell Douglas was able to actually hand over part of its aircraft manufacturing technology because it was at a critical moment of life and death and needed the help of the Chinese market. Even so, the most critical aircraft structural design and aero-engine related technologies for large aircraft are still in their own hands. ??After acquiring McDonnell Douglas, Boeing will occupy 70 to 80% of the world''s civil aviation market, and it would be damned if it would talk to you about technology transfer. Do you really think that someone is doing charity? As for the other parts except the conclusion, it is even more unsightly. ?Some people have almost written it on their faces that they received black money from Boeing... ?Chang Haonan took a few deep breaths and restrained his urge to curse. As a junior, he must not behave too inappropriately in Ding Gaoheng''s office. That will not only fail to solve any problem, but will also reduce the persuasiveness of the previous judgment. Director Ding, although these suggestions... all have some truth, the starting point seems to be a bit one-sided. High emotional intelligence: The starting point seems to be one-sided. Low emotional intelligence: There is a high probability that the **** of these guys is not on our side. Its indeed a bit one-sided. Ding Gaoheng can naturally understand the meaning of Chang Haonans words: Thats why Im here to find you today. I hope to hear some voices from other perspectives. ?Chang Haonan also understood. ?The other party wants some more professional opinions that can guarantee their position. But he had no answer ? Even if you dont consider the issue of maintaining the personality, he really cant say anything more. At this time, Du Yishan, who had been silent just now, suddenly spoke: Actually, within our aviation industry system, there are a group of people who often deal with foreign customers. I think we can ask their opinions. ???Also in the afternoon, Im sorry that Im really not in a good state these past few days. I feel very tired after writing for a while. (End of this chapter) Chapter 169 Give up your illusions and prepare to fight! Chapter 169 Give up your illusions and prepare to fight! Chang Haonan was stunned when he heard this. ?This time it was Ding Gaoheng who reacted first: Where is the aviation technology company? Thats right. As he spoke, Du Yishan put down the document in his hand that made him a little hypertensive after reading it, picked up the tea cup again, took a sip, and then continued: In the past nearly two decades, all our negotiations on arms sales with Western countries, especially European countries, have been conducted through them. Although the nature of the arms purchase trade is quite special and is certainly different from normal foreign trade of civilian goods, after all, they have more dealings with foreigners and are much more professional than those of us who are purely technical. More importantly, its not long before your Science and Technology Committee reports the results of the discussion. I think it may not be easy for you to find other professionals who have no problem with their position. Hearing this last sentence, Ding Gaoheng showed a slightly embarrassed expression. Obviously, as the director of the Science and Technology Commission, he actually needed two "outsiders" to remind Boeing of the impact of the McDonnell Douglas merger, which is definitely not a shameful thing. But then he lowered his head and looked at the meeting minutes on his desk that were either avoiding important points and talking nonsense, or directly supporting others. He really couldn''t say anything to refute. Wellit seems thats the only way it can be. Ding Gaoheng leaned his upper body back on the back of the seat, but his mood now is at least much better than before: There is one more thing, Comrade Xiao Chang. Since you also think that neither we nor Europe can really stop Boeing from acquiring McDonnell Douglas, I would like to hear your opinion on the future of the MD90 aircraft production line in Shanghai. ?Chang Haonan organized the documents in his hands and put them back on Ding Gaoheng''s desk: I dont think you can hang yourself from a tree like MD90. ?After determining the main tone of his answer, Chang Haonan took another look at Ding Gaoheng behind the desk. ?The other party looked like an old god, without showing much emotion. But this is a good thing for Chang Haonan. So he continued: The technical level of McDonnell Douglas is inferior to that of Boeing, and once Boeing completes the acquisition, they will definitely not continue to invest in the development of the MD series passenger aircraft product line. In this way, even if Boeing wants to be a good person, By fully fulfilling the commercial agreement signed by McDonnell Douglas, we will only produce a batch of passenger aircraft that will have no follow-up development and whose commercial prospects have been sentenced to death. "Furthermore, because the raw materials and aero engines of the MD90 aircraft still need to be imported, and maintenance and support must also rely on the United States, so we can''t even use these aircraft for military use. In this way, it can be said that building one will cost us a fortune. shelf." Ding Gaoheng nodded after hearing Chang Haonan''s answer and lit a cigarette at the same time: "But together with Hufei''s production line and final assembly line, we have invested nearly one billion yuan. In any case, the information and experience provided by McDonnell Douglas in the early stage are solid, and it has also made it difficult for us to cultivate We have created a group of engineers and technical workers who have mastered the assembly and manufacturing technology of large aircraft. We must give them something to continue doing. Otherwise, wouldnt all the previous investment have been completely wasted? In fact, Ding Gaohengs concerns are justified. Because this is exactly what happened after Hufei struggled for several years in the previous life. ??Although it is impossible for Chang Haonan to know what happened in that timeline, he will certainly not allow the tragedy of the Hufei Factory to happen again this time. So he immediately said what he had been thinking about since attending the Xiangzhou Air Show: "We have now begun to build our own aviation industry system, so it is best to produce a passenger aircraft designed according to our country''s standards. This will be more helpful to our own civil aviation industry in the future." ? ? ? "And around the world, there are technological capabilities "Only the United States, the European Union, Brazil and Russia have developed a complete passenger aircraft." The United States and the European Union are in an absolutely dominant position in the current civil aviation market, and it is unlikely that they will agree to produce aircraft according to Chinese standards. As for Brazils aviation manufacturing industry, it is completely dependent on the subsidiary industrial system that exists in the United States and does not Be independent and autonomous. Chang Haonan mentioned Brazil purely unintentionally. After all, Embraer still has a very high status in the field of regional passenger aircraft and business jets. But when Ding Gaoheng heard this, he suddenly sighed: In fact, in the mid-to-late 1980s, when we proposed to cooperate with McDonnell Douglas to develop the civil aviation industry, the target of pursuit was Brazil. So thats it? ?This sentence contains a lot of information, but it also explains a lot of Chang Haonans doubts. The rise of Embraer is actually an example of moving from OEM production to cooperative development, giving up technological independence in exchange for integration into the European and American aviation industry systems, and ultimately becoming bigger and stronger. Considering that this is almost the only successful example of a third world country in the civil aviation industry, this path is indeed extremely confusing. So it is not difficult to understand that we took this as an example to make the decision to cooperate with McDonnell Douglas and integrate into the aviation industry system. The only problem is that todays Embraer has nothing to do with Brazil except its name. Its success has nothing to do with Brazil either. The Brazilian government currently only owns 1.45% of Embraers shares. Even most of the jobs provided by this company are not in China, but in the United States and Europe. Yes, some people thought that it would be good to follow Europe and the United States to drink soup like Brazil. Ding Gaoheng took an unprecedented long puff of smoke and slowly blew the smoke into the air in front of him: But within a few years, Americans showed their true colorslet alone drinking soup, they didnt even want to give us the chance to lick the bottom of the bowl! Its a pity that some people dont know whether they cant see it or they pretend to be confused because they understand, so they have been dragging their feet on such a fatal matter for nearly ten years. The air in the office was quiet for a moment. Theres nothing we can do about it. Chang Haonan, who came back more than 20 years ago and has experienced the era of all-out trade wars, naturally has deeper feelings in these aspects: With 1.2 billion people, even one more mouthful of soup can kill Americans. "Besides, we can''t feed these billions of mouths just by relying on the soup and bones donated by others. Therefore, it is absolutely impossible for us in China to survive in the world by treating other people as dogs. Apart from snatching meat from other people''s mouths, There is no other way out. We must give up our illusions and prepare to fight! (End of this chapter) Chapter 170 The interests behind airliners Chapter 170 The interests behind the passenger plane After all, the discussion about Embraer was just a side issue, so it didnt take long for the topic between the three of them to return to the large aircraft production line at Hufei. No matter what, Hufeis final assembly line and production line must be maintained as much as possible. This is the main tone set by the above. Ding Gaoheng''s words made Du Yishan next to him let out a long sigh of relief. In the latter''s view, if the top management hopes to preserve Hufei''s large aircraft production capacity, then at least there should be nothing to worry about in this regard. The most is to continue production at a loss, or to switch to some less advanced models to practice. Thats all. In the most difficult period of the year, various manufacturing plants in the aviation industry basically survived in this way. But this is not the case for Chang Haonan, who knows the subsequent plot. He knows very well what certain people are capable of doing in both positive and negative ways. The civil aviation market in China is the size of thousands of mainline aircraft. And in order to ensure safety, Chinese airlines, especially passenger routes, will rarely operate old aircraft that are too old. So this is still a market that is forced to refresh every 8-10 years. As for the external procurement of aircraft, whether it is Boeing or Airbus, there is a huge chain of interests hidden behind it. If nothing else, the public relations expenses incurred by these two companies every year amount to ten figures. Once China is able to manufacture its own passenger aircraft, especially mainline passenger aircraft. Even if the design of the passenger aircraft is still foreign, and even if the model is not that advanced, Chinas civil aviation market will definitely use aircraft produced by itself first. Like those MD82s procured in the past few years, and the MD90s originally planned for the future. As a result, the space left for other companies to compete freely will become smaller. At the same time, it also means that the profit space left for those compradors will become smaller. And this is what those people dont want to see. Hence, internal enemies are even more active than external enemies in disrupting the development of the independent aviation industry. They will never give up just because of the tone set above. Sure enough, Ding Gaoheng then said: What the Civil Aviation Administration of China means is that if the MD90 project loses its prospects due to Boeings acquisition of McDonnell Douglas, then we can consider the AE100 passenger aircraft solution that Airbus has been recommending to us in the past two years... Hearing this, Chang Haonan sneered inwardly. The operation is exactly the same as the original timeline. ?This AE100 project has not even been announced at this time. The reason why Airbus came to Shanghai Airbus is because it is not sure whether there is a market prospect for a mainline aircraft the size of a regional aircraft, so it just wants to find a partner to share the risk. Once the project improves, we will definitely find a way to get rid of the latter. ? It is true that China and Europe have common interests in the Boeing-McDonnell Douglas merger. But when it comes to developing an independent aviation industry, its a different story. What happened in the previous life also proved that this idea was not successful. After abandoning Shanghai Airbus, the A318 passenger aircraft that Airbus took out only sold about 80 aircraft and was hastily discontinued. Airlines that bought this model also quickly chose to sell it. Retired. In fact, a 100-seat passenger aircraft is a complete clown for Chinas passenger flow density, and it is impossible to support the demand for major domestic routes. Furthermore, the take-off weight of the AE100 is only 60 tons, which is overkill for Hufeis production line. In short, choosing AE100 to inherit the MD90 project can be said to be the worst solution. It is even worse than biting the bullet and continuing to make MD90 at a loss. Other than deliberately sabotaging China''s aviation industry, I can''t think of any other reason. Ding Gaohengs words just now continue: As Comrade Xiao Chang said just now, we have no initiative in choosing to cooperate with Airbus. The companys current growth momentum is very strong, and there is no need to completely produce an aircraft in our country. But the only forces I can mobilize currently are related to the Science and Technology Commission system. There is no way to compare with civil aviation in terms of resources. Obviously, Ding Gaoheng needs more sufficient reasons to prove to his superiors why the AE100 path is unworkable. And this is actually a super-outline question for him. Because in the field of civil aviation industry, especially in terms of development routes that have nothing to do with specific technologies, there is no such thing as the Commission of Science, Technology and Industry for National Defense. ? It was entirely because of the aviation industry standards controversy that Chang Haonan caused a few months ago that Ding Gaoheng and the Science and Technology Commission had the opportunity to enter the game in an all-round way. He himself is engaged in aerospace and missiles. There is no chance of buying in these two fields. Obviously there is no room for compradors to survive. Naturally, he has never experienced such a scene. ? It is not surprising that a foreign aid with a reliable position and excellent professional knowledge is needed. I''m afraid this is the main purpose of finding Chang Haonan and Du Yishan. The discussion just now on how to deal with the Boeing-McDonnell Douglas merger should only be regarded as an additional question. It''s just that Chang Haonan made a fool of himself with the additional questions. Now, he is about to complete the required questions. I saw this AE100 solution at the Xiangzhou Air Show this year. I also consulted some Airbus technical staff. Chang Haonan must not directly yell at Ding Gaoheng in his office for harming the country. That would be too offensive and might cause unnecessary trouble to the director of the Science and Technology Commission if heard by outsiders passing by. But he couldnt directly predict the fate of the AE100 without any basis, so he had to start from the air show he just participated in: "First of all, Airbus has only produced one model, which has not even entered the overall design stage. Judging from my professional perspective, no matter how efficient the engineers are, it will take 2-3 years to complete the process from design to design. The entire process of mass production, so even in terms of project progress alone, it is impossible to follow the MD90 project that may be terminated at any time. " "Secondly, according to the data given by the other party at the air show, the AE100 only has 100-110 seats, which is about two-thirds of the A320, but its occupation of airport resources is at the same level as the latter. In terms of operating costs There is no advantage. There may be demand for some European routes with less passenger traffic, but it will definitely not become mainstream here. " "Finally, it comes back to the issue just mentioned. It is obviously impossible for Airbus to build a new aircraft in accordance with my country''s aviation industry standards. This means that if Hufei chooses the AE100 project, it will have to accept another Brand-new manufacturing and assembly standards may not be beneficial to the development of our countrys aviation industry in the long run. Ding Gaoheng nodded repeatedly after hearing a few words, obviously quite satisfied with this set of answers. But Chang Haonan knew that this was still not enough. When discussing this kind of practical problem, you cannot just raise the difficulties without giving solutions. So the Science and Technology Commission still needs to come up with a more feasible plan. (End of this chapter) Chapter 171 Tupolev is also an option Chapter 171 Tupolev is also a choice "Based on the current situation, we can consider asking the Aerospace Technology Group to contact Tupolev personnel and discuss the use of the Tu-204 and Tu-334 models by introducing Su-27 technology and production lines. Issues with domestic manufacturing. "Compared to Airbus, Tupolev''s situation is obviously much worse, which also means that it is easier for them to compromise in negotiations. In addition, we already have experience negotiating with Sukhoi, and there should be hope that They improve the aircraft according to our country''s standards, and our technical personnel can also participate in this process, and we can also give this aircraft our own code name like the J-11." Obviously, when Chang Haonan said this, Ding Gaoheng''s eyes suddenly lit up. The MD90 produced in China can only be called MD90, but the Tu 204 produced in China can have its own name. Dont underestimate this difference. For an era when national self-confidence is at its lowest, this is definitely quite attractive. So Chang Haonan continued to strike while the railway was hot: "More importantly, the Russians will not restrict the uses of these aircraft we manufacture. Even if the civil aviation side breaks out and refuses to accept these aircraft, the military can be a strong backing. The Tu-204 is a better special aircraft than the Y-8 Platforms, reconnaissance, anti-submarine, early warning, electronic warfare, and VIP transportation can all be modified on the basis of this model. Obviously, Ding Gaoheng is already moved. There is another benefit that Chang Haonan did not mention clearly, but everyone is well aware of it - Only the trade negotiations with Russia can be fully decided by the Aviation Technology Group and can avoid the interference of other forces. Because most of the connections in related industries on the Russian side are in the hands of aviation technology, there is no need to worry about others getting in the way. And its more efficient. ? It is already December 16th, and there is only about half a month left before relevant units submit response plans to their superiors regarding the Boeing-McDonnell Douglas merger incident. Therefore, the sooner the better. If we can reach even the most preliminary consensus with Tupolev on key issues such as model improvement and technology transfer during this period, it can greatly improve the effectiveness of the Science and Technology Commission on this matter. Persuasion and voice. ?Thinking of this, Ding Gaoheng could no longer sit still. ?He pressed the long-burned cigarette **** in his hand into the ashtray, then stood up: Lao Du, Comrade Xiao Chang, originally I was going to keep you for dinner in the canteen of the Science and Industry Committee today, but now it seems that the situation is urgent and I have to go and prepare for a meeting right away. It doesnt matter, business is more important. Du Yishan smiled and waved his hand: "But I have to pay for this meal here. After you solve the problem at hand, I will bring Xiao Chang over again. You can''t default on the bill." Not only will we not default on our debts, but if this matter can really be properly resolved in this way, then Comrade Xiao Chang can be said to be a great contributor to our countrys aviation industry! Ding Gaoheng had already put on his coat and was getting ready to go out as he spoke: When the time comes, I will personally ask for credit from him! That statement is final. Its a deal! Chang Haonan was still immersed in great joy until he followed Du Yishan and left the Science and Technology Commission. Compared with the request for credit that Ding Gaoheng said, what excites him more is actually what happened today Finally, I have the opportunity to speak out what is on my mind. Ever since he saw the Tu-204 at the Zhuhai Air Show, things about domestically produced large aircraft have been lingering in his mind. ??If you have unlimited scientific research points and time and energy, the best solution is naturally to put aside all foreigners and build a passenger aircraft series that matches the A320/330/350/380. But as far as the current objective conditions are concerned, this can only be an idea. In fact, even if the full set of technical information of the A350 or A380 is presented, China today does not have the ability to manufacture an aircraft of this size on its own. So we still have to proceed step by step. But overall technological weakness does not mean that some advanced key technologies cannot be developed. ?With the promotion of Chang Haonan, Huaxia is fully able to verify some new key technologies in the localization process of Tu-204, thereby improving its capabilities in the field of large aircraft design and manufacturing Thats right, just like the J-11. This is another reason why he hopes to cooperate with Tupolev. After all, Airbus or Boeing cannot be expected to allow others to tamper with the design of their aircraft. At this time, Du Yishan patted Chang Haonan on the shoulder: Lets go, I didnt take you to have a meal at the Science and Industry Committee this time, Ill treat you to a meal there. ??As he spoke, he pointed to a Jinjude restaurant across the street. On the other side, after seeing off the master and apprentice, Ding Gaoheng quickly asked his secretary to make several calls in succession. Later that day, the leaders of the Aviation Industry Group and the Aviation Technology Group, as well as several representatives who had been responsible for negotiating important projects in the past, gathered in a conference room of the Committee of Science and Industry. ??This is the same room where the last symposium was held. You must all already know about Boeings acquisition of McDonnell Douglas. ?After making up his mind, Ding Gaoheng also showed his card as the director of the Science and Technology Commission and said straight to the point: "We cannot sit idly by and do nothing about this matter. We must win some benefits for China." After hearing this statement, the faces of several other people present at the meeting became serious, and they appeared to be sitting upright. Comrades from the aviation technology department, I will assign you two tasks now. The first is to use some of the contacts we made during the past arms trade to test the European sides attitude towards this matter, and if possible, follow their methods to formulate a negotiation strategy suitable for us. I understand, Director Ding, I will personally take charge of this matter. A senior negotiator from Aviation Technology Group said while recording: However, our country currently does not have an anti-monopoly law and can only consider applying anti-unfair competition law, so... it may be weaker than the EU during the negotiation process. Ding Gaoheng nodded: The bottom line of our negotiations is to require Boeing to transfer some parts sold to China Airliners to our domestic production. The proportion may not be large, but it must be there. As for better conditions, we will see if we can get them in time. Obviously, it is impossible for a person who can sit in the position of director of the Science and Technology Commission to have no ideas of his own. ??Of course we should find Tupolev for cooperation, but we should also try to recover the losses that can be recovered from Boeing. After confirming that no one had anything else to say, Ding Gaoheng continued: "The second is to contact Russia''s Tupolev Company as quickly as possible and ask them about co-production and improvement of passenger aircraft. But don''t let them see that we are in a hurry. It will be good if we can confirm our intention before the end of the year." "Comrades from the aviation industry department, I need you to write a report on the development of the civil aviation industry within a week. I don''t care what you write in the middle. The conclusion must be to oppose the AE100 aircraft project that Airbus wants to cooperate with us. "in addition" As Ding Gaoheng''s instructions were issued one by one, the entire Science and Technology Commission system began to operate accurately and efficiently. (End of this chapter) Chapter 172 Imagination of high-thrust turbofan engine Chapter 172 Imagination of high-thrust turbofan engine ?At the same time, the master and the apprentice had already finished dinner in Jinjude and sat on the special car returning to Beijing Hang University. Xiao Chang, according to the current progress, the J-8C should be able to complete the design and finalization soon. Do you have any ideas about the future research direction? After the car started moving, Du Yishan asked Chang Haonan next to him. ?The drivers who can drive for Du Yishan are also specially arranged, and work matters can naturally be discussed in the car. "I think the experience of participating in the 83rd Project during this period is very good. It can not only ensure a certain degree of freedom in research directions, but also deeply participate in the project development process, so it is best to continue using this model. Go down." ?Chang Haonan almost immediately gave the answer he had thought of for a long time. I guessed you would choose this way. Du Yishan smiled and continued: "During the time after I came back from Nanzheng, the 611 Institute asked me many times, both overtly and covertly, saying that they wanted you to come over and help them match their new models. What do you think? " In addition, this time Chengdu said that they would apply for horizontal projects for us, and we would have more freedom in the use of funds. This sentence is not very clear, but Chang Haonan can naturally understand it. The so-called horizontal projects are actually research projects signed directly between enterprises and university research groups, without going through ministries, local governments or other national agencies, so management will be much easier. ?For example, according to the regulations of some schools, up to 30%-50% of the horizontal funds can even be directly allocated as "project team commission", and the remaining balance can be used as project research funds. This item is definitely not included in the general vertical project funding. Although there are various ways to create clever names, after all, they are not as comfortable as just money. ? Du Yishans emphasis on horizontal topics is obviously to express the sincerity of the 611 Institute. ?But in fact, these details were already agreed upon by Chang Haonan with Lu Yuying in Xiangzhou, so they did not surprise him. "Of course it''s no problem to do the 611 project. Their J-7F is now considering replacing it with a turbojet 14, and our country''s No. 10 independent third-generation aircraft is also being developed there. Rather, this is my next plan. In that case, I will give a definite reply to 611 tomorrow. Du Yishan said as he raised his watch and looked at the date: Today is December 16th. If everything goes well, the design finalization appraisal may be scheduled around New Years Day, so you can consider waiting until after the Spring Festival to directly join the work of 611. However, Chang Haonan shook his head: "There is no need to wait until after the Spring Festival. I can start working immediately after I return to Shengjing." In the past, we were limited by objective conditions and could only focus on the flight engine matching. But this time, I am going to change my mind and try to design with the aviation engine as the center. "So even if I am doing a project for 611, I plan to go to Shengjing first to follow up on the aviation development situation. After all, our second-generation power turbojet 14 and third-generation power turbofan 10 are both produced by 606 and 410 factories. In charge. Turbofan 10 ?Du Yishan took off his glasses, took out a piece of chamois leather and gently wiped the lenses, then put them back on: Do you think that with the current progress of Project 10, there is still hope for Turbofan 10 to catch up with its first flight? ?In terms of project establishment time, the Turbofan 10, known as the "Taihang", is actually not much later than the Turbojet 14. However, with China''s current aviation power level, even the development of a turbojet with a thrust-to-weight ratio of 6.5 is stumbling. In the end, it was Chang Haonan who came to the rescue with a plug-in, let alone one that is expected to have a thrust-to-weight ratio of 7.5-8. A high-thrust turbofan.???? So what is the current progress of this project... Basically there is no progress. Chang Haonan was able to modify the Turbojet 14 in a few months. In addition to the system as a backing, the more important reason is that the model itself has a high degree of completion. He only needs to build on the original design. Just modify it. ?Furthermore, the requirements for materials and manufacturing of the turbojet 14 are relatively low. As long as he comes up with a good enough design plan, even if the 410 factory is a little less efficient, he can still build what is on the drawing. But the Turbofan 10 is a different story entirely. According to the original timeline, the J-10 would make its first flight in March 1998. It is now December 1996, and the No. 01 prototype equipped with the AL-31FN engine is actually close to rolling off the assembly line. ?Even if the car is turned on, Chang Haonan cannot build a brand new third-generation model from scratch in 14 months. Honestly speaking, it would be quite difficult for him to actually start designing the turbofan 10 within 14 months When the Taihang engine project was established, there was a serious lack of preliminary research. To put it bluntly, it means something big and quick. This has resulted in that although the project has been put on the table, many preliminary preparations have not been completed. So Chang Haonan shook his head very simply: I heard that the progress of the No. 10 project at the 611 Institute is pretty smooth. After all, the Turbofan 10 has to start from scratch. It is probably impossible to catch the first flight. ?However, before Du Yishan could answer the question, the topic changed again: But just like the J-8C, it will first make its first flight in an incomplete state, and then later install new domestic power and adjust the inlet design to catch up with the finalization node. I think this is still promising. "The overall performance of the AL31FN engine is acceptable, but in any case, it is a Russian design after all. It is impossible for the Salyut Design Bureau to adjust according to our needs, or to customize the performance details of the engine. Its always a bit boring when you send a matching job. ?This answer is obviously beyond Du Yishan''s expectations, especially the part about letting the turbofan 10 catch up with the J-10 design finalization node: Tell me about your specific plan? Chang Haonan did not give his answer immediately, but lowered his head and thought for a few minutes: "First of all, high-thrust turbofans are still too far ahead of our current aero-engine research level. I could feel it when I modified the turbojet 14 before. The current design ideas, design tools, material levels, and process levels are all Its not enough, so when I return to Shengjing this time, the focus will definitely be on the turbojet 14. After all, the J-7F is a single-engine aircraft, and its aviation engine requirements are somewhat different from the J-8C, so some parameters need to be fine-tuned. In addition, both the 606th Institute and the 410th Factory can accumulate some experience in the production and improvement process of the turbojet 14. Including myself, we also need to further improve our understanding of aviation power. This can also be regarded as technical preparation for the Taihang project. "So after completing the flight engine matching work for the J-7F, I should first participate in the preparations for the first flight of Project No. 10. Just when I was studying the stability of the flight engine in Fucheng, I used to follow the wing flutter. With the same idea of ??control, we have conceived an active engine surge prediction and suppression system, and we can take this opportunity to actually test the feasibility. " After hearing this answer, Du Yishan secretly breathed a sigh of relief. ?For just a moment, he began to worry that he, a talented student, might be a little drifting because his experience in the 83rd Project was too smooth. However, judging from the plans Chang Haonan made for himself, he still maintains a calm and objective assessment of himself and the level of China''s aviation industry as a whole. Its really unfounded worries. Then follow your plan. (End of this chapter) Chapter 173 EDM Chapter 173 Electrical Discharge Machining After both parties confirmed the details of the project and confirmed that they had no objections to the preliminary plan drawn up by Chang Haonan, Chang Haonans 611, who was worried that Ye Changmengduo would be robbed again, submitted the project as quickly as possible. Even though it is the busiest time at the end of the year, this project still got the green light from the Science and Technology Commission, and the entire process was completed in just a few days. ?When Chang Haonan took the plane back to Shengjing, an engineer from the 611 Institute who had participated in the J-7F design work was already following him. There were only some scattered test flight subjects that needed to be completed at the trial training base in the Eighty-three Project. There was no work that Chang Haonan needed to complete, so after landing, he rushed directly to 606, which was responsible for the performance adjustment of the turbojet 14 engine. graduate School. ?Compared with the J-8C equipped with two engines, the J-7F, which is lighter, smaller and has a single engine, requires its own power to have higher reliability and lifespan, but does not require high thrust. For this purpose, the 606 Institute has specially developed a new model, the turbojet 14B. There are not many specific changes. The main changes are to reduce the temperature in front of the turbine, sacrificing about 5% of the thrust, in exchange for a lower failure rate, and to increase the first turnover period from 150 hours to 250 hours. At the same time, the power of the generator supporting the engine was increased from the original 18kw to 20kw. After all, there is only one engine, but it has to drive a KJL7 radar with high power, and some margin must be left to cope with other subsystems. ?Correspondingly, the model originally installed on the J-8C was named Turbojet 14A This job is not difficult. Therefore, although the chief designer Yan Zhongcheng has focused on the design of the aeroderivative gas turbine of the Turbojet 14, others in the Kunlun engine project team still rely on the designs left by Chang Haonan. Experience completes the improvements. Such efficiency was far beyond Chang Haonan''s expectations, and after some inspections, he determined that there was nothing wrong with the design of the turbojet 14B. For China Aviation Industry in the mid-1990s, it was very gratifying to be able to fine-tune engine performance to this extent at once. Factory 410 has started to produce a prototype of this model. If there are no problems in the factory test, it will be sent to Chengdu for installation and matching in about two years. ?This change is very small, especially for sub-models that reduce performance. Generally, there is no need to conduct complete ground and air platform tests as before. However, Chang Haonan was not happy for long. One morning two days later, he had just finished breakfast when he was stopped by Liu Dan, the deputy chief designer in charge of model improvement. Chang Gong, the news from the 410 Factory is that the turbojet 14B prototype broke down during the factory test. After hearing these words, Chang Haonan, who was still a little sleepy, suddenly woke up. He took several deep breaths in succession to calm himself down. Engine problems at this stage are not necessarily a bad thing. Furthermore, the failure was not an accident, which means the situation was not particularly serious. Lets go and have a look at Factory 410. The group soon arrived at the 410 Factory not far away. The person responsible for the reception was Chang Haonans old acquaintance, Zhong Shihong, the Minister of Technology. He led everyone to the testing workshop behind the production workshop. An engine is being installed on the test bed. ?The overall structure here looks a bit similar to the SB101 high-altitude platform of the 624 Institute, but it does not have the ability to simulate a high-altitude environment. It is just a place to fix the engine and test whether it can work properly. From the outside, this turbojet 14B has no damage. It also verified Chang Haonans previous guess that the problem should not be serious. The final assembly of this prototype was completed the afternoon before yesterday. Routine factory testing began in the evening, and the problem was quickly discovered. Zhong Shihong walked to the control room next to him and called up the relevant test data: "When the engine is at maximum thrust but the afterburner is not activated, the working condition of the compressor will fluctuate violently without warning. As of this morning, an alarm appeared in the combustion chamber. We shut down the engine to cool down and then checked. , it was found that the first stage turbine blades had been damaged, but the test time had only passed less than thirty hours. We have conducted many rounds of troubleshooting, but in the end we still couldnt find out the cause, so we can only contact you to see if we can determine what the problem is. After hearing this introduction, what the 606 Institute is most worried about is not the prototype itself, but the turbojet 14A that has entered small batch production. After all, it is related to the design and finalization of the J-8C. However, it seems that this point has been estimated for a long time. Before anyone else asked, Zhong Shihong said that several turbojet 14A produced at the same time did not have similar problems and the test was completed very smoothly. ?This made Chang Haonan feel relieved, but also quite confused. ?Most of the parts of the turbojet 14B are exactly the same as the turbojet 14A, so a large number of parts from the same batch will be directly used for assembly. ?The result is that there is a problem with the model whose parameter orientation is low performance and high reliability? ?This suddenly reminded Chang Haonan that when doing ground simulation tests for aviation engines in Fucheng, Yao Mengna''s test process of the temperature field distribution in front of the turbine seemed to have similar results. When the throttle valve is near the minimum afterburner and maximum thrust, the temperature field distribution is the most unstable. If you continue to increase the thrust, the situation will gradually get better. ?At that time, everyone could only locate the problem in the process of air film hole processing, and did not find a more specific reason. ?Chang Haonan slowly walked to the test bench and picked up the damaged turbine blade from the table. Because it uses air film holes for active cooling, it is covered with dense circular holes, which is extremely unfriendly to patients with cryptophobia. Minister Zhong, how do you process these film cooling holes when you produce turbine blades? After hearing this question, Zhong Shihongs face showed a hint of pride involuntarily: "The diameter of these small holes is only 0.25 to 0.30mm, which is difficult to process mechanically, so we can only use EDM deep hole processing technology. Our 410 factory specially changed the flow electrode of the 100A EDM machine tool into a hollow rotating copper for this purpose. The electrodes allow the coolant to flow in the copper tubes, and the technical problem of short electrode life is overcome and the turbine blades of the Turbojet 14 are manufactured. " Hmmis this the mainstream processing method in the world now? "That''s not true. Western countries generally use electrohydraulic beam machining. However, our country''s foundation in the field of electrochemistry is too weak, and related equipment is restricted and cannot be purchased. We have no choice but to use EDM drilling. this road." Zhong Shihong said and shook his head: However, the entire other processes of turbine blade manufacturing, including testing standards, are strictly in line with the worlds advanced levels, so you can rest assured in terms of quality. The testing standards are also based on them? Hearing this, Chang Haonan finally came to a realization. Then I probably know where the problem is. (End of this chapter) Chapter 174 Process issues Chapter 174 Process Issues You are saying that there is something wrong with the EDM process? Zhong Shihong next to him showed an expression of disbelief: But the turbine blades of the Turbojet 14 were produced in the same way in the past, and there were no similar failures? It may not be a problem with the processing technology itself. Chang Haonan habitually raised the turbine blade in his hand and pointed it at the light source, but it was obviously impossible to see anything with the naked eye, not to mention that this was a scrapped part: I think it is more likely that there are omissions in the post-processing and detection process. "this" Zhong Shihong still cant accept this explanation: "Turbine blades are the core components of the hot end of aeroengines. For this purpose, we have specially set up a set of inspection procedures to inspect the position, diameter, residual stress and deformation of the openings, as well as the burrs and flash edges of the openings. Only if they all pass can be installed on the turbine disk. So, although the yield rate of manufacturing turbine blades is not high, I think the quality of the product can be guaranteed. ?Looking at Zhong Shihong beside him who was explaining the quality inspection process quickly, Chang Haonan hesitated for a moment and did not directly express what he had just thought. I need a metallographic microscope with a probe. It is meaningless to argue here. The correct way is to find a sample and test it again. We do have a metallographic microscope here, but this scanning probe An engineer in charge of testing next to him shook his head: Multifunctional probes cannot be produced domestically for the time being. If they are imported, high-end optoelectronic instruments and equipment cannot be purchased by our military industrial units. Hearing this answer, Chang Haonan shook his head helplessly. ??In this era, China''s technological backwardness is all-round, and many things are due to inadequacy. It is difficult for him alone to solve such systemic problems in a short period of time, and he can only think of other ways. What about other units? Do you know which universities or scientific research institutions have this type of equipment? ?In the era before Chang Haonan was reborn, a place doing scientific research would only have a few similar electron microscopes, so he rarely paid attention to this kind of issue. Perhaps you can ask Lianhai University of Science and Technology or Lianhai Medical University? Ill get in touch. The inspection engineer just turned around quickly and left. ??Although Zhong Shihong had different views from Chang Haonan, he did not stop him. The ultimate goal of everyone is the same, which is to solve the technical risks that caused the turbojet 14B to malfunction. No matter whose opinion is correct, everything will be known once the test results come out. The two universities that needed to communicate were not affiliated with the Commission of Science and Industry, and after all, there were still confidentiality issues with the turbine blades of the Turbojet 14, so the communication between the systems took a lot of effort. Until dinner that day, the 410 Factory Biancai received a clear answer. Lianhai Polytechnic has a metallographic inspection microscope that meets the requirements, but according to the agreement reached with the foreign company when purchasing it, this equipment and all related accessories cannot be moved, so the samples need to be brought there for testing. In the 1990s, there were not many people flying. Even for official or business trips, most people only chose to fly when traveling far away. Therefore, even though Shengjing and Lianhai are both large-scale cities, they still do not fly every day. flight. Therefore, it was not until a few days later that Chang Haonan and Zhong Shihong boarded a plane to Lianhai with several engineers and two finished turbine blades randomly selected from the production line. A Cessna 208, nicknamed "Caravan". Small aircraft that are not even considered regional aircraft are actually generally used in general aviation abroad. In fact, Chang Haonan didnt even recognize the plane at first, but simply thought it looked familiar. It was not until he boarded the plane that he glanced at the escape manual placed behind the front seat before taking off and determined the specific model. I also remembered the familiar source When I was reborn more than half a year ago, in Liu Hongbos aircraft design class, the seaplane design presented by Huang Zhiqiangs group was based on this aircraft. It''s just that the one he''s riding now is an extended one that can accommodate 14 passengers. I didnt know before that Northern Airlines had so many small Cessna aircraft. As the plane took off and climbed, Chang Haonan looked down from the port window and discovered that there were many identical models parked on the apron next to them, all with the same paintwork. Many airlines have been doing this over the years. Zhong Shihong, who was sitting next to him, wrapped himself in the blanket he asked from the flight attendant before getting on the plane and replied: There are also slightly larger branch line models that are also very popular, such as the MA-60 that you have participated in before, Bombardiers CRJ200, and Embraers EMB145 that has just been put into operation. There are a lot of them. Chang Haonan was shocked when he heard this statement: Wouldnt it cost money to operate so many small planes? ??It''s not possible to do any serious work on the plane these days, so the two of them can only pass the time by chatting. How could it be? Zhong Shihong also asked in confusion: The current mainstream prediction for air passenger transport in the new century is to use small short-distance passenger aircraft to gather passengers to regional central cities, and then use super-large passenger aircraft to connect these central cities. The demand for regional aircraft and general aviation is expected to be very large. So in the past two years, Embraer and Bombardier have been developing a new generation of regional airliners, the ERJ190 and CRJ700, while Boeing and Airbus are focusing on ultra-long-range mainline airliners. After being reminded by the other party, Chang Haonan finally remembered that in the 1990s, there was a trend that the future development direction of passenger aircraft would be very big or very small, which made several major technology manufacturers And took many detours. It was not until the new century came that everyone discovered that the reality was completely different from their imagination. No one wants to go through so many transfers and will try their best to choose direct flights. Moreover, the growth rate of air passenger traffic is much faster than expected, especially in places like China and North America. Even the route between two non-major cities, It is also worth flying with a small mainline airliner. ? So ultra-long-range or ultra-large giants such as the Boeing 777 and Airbus A380 quickly fell out of favor. Before Chang Haonan''s crossing, there were very few passenger flights operated by these models. As for the regional airliner that once had high hopes... ? It is not difficult to see some clues from the fact that Bombardier and Embraer sold themselves to Airbus and Boeing respectively. Of course, if we only look at the results, 150-180-seat models such as the Boeing 737/Airbus A320 have always been the absolute rulers of the market. However, in a short period of time at the turn of the century, they were The status in the minds of companies and aircraft manufacturers has indeed had some twists and turns. And this seems to be an opportunity that can be exploited. (End of this chapter) Chapter 175 remelted layer Chapter 175 Remelted Layer What he just thought about is actually very simple. ??It is to find a way to get aircraft manufacturers to agree to produce some important parts of "non-important models" in China while they are focusing their main efforts elsewhere. Main frame, landing gear, wings and even fan blades. On the one hand, it can provide many high-end manufacturing jobs in the country. On the other hand, it can also allow more aircraft manufacturers to gain experience in manufacturing passenger aircraft parts in advance and train some skilled workers. ?Shanghai, to be honest, is not a suitable place for manufacturing. Its too expensive for every inch of land. ?Although Hufei cannot move anywhere at will, once the production of domestically produced passenger aircraft increases, parts production will definitely have to be allocated to other factories under the aviation industry. The ARJ21 and C919 on the original timeline adopted this form, with scattered production in various places, and finally completed assembly and testing in Shanghai. ?In this life, the localization rate of domestically produced large aircraft will definitely be higher than in the previous life, and the number of companies and factories involved in the entire industry chain will also be greater. Just relying on one Figure 214, which has a high probability of not having a very high output, will definitely not be able to feed so many factories. So the earlier you prepare for this, the better. If it can be successful, then units such as Factory 112, Factory 132, Factory 410, Factory 172, and even the cities where they are located will benefit from it. ?However, Chang Haonan is not the kind of person who likes to open champagne at halftime, so on the surface he still chatted with the other party calmly. You know a lot about this. The aviation manufacturing industry and the air transportation industry can be considered to be two fields that have almost nothing to do with each other. Although Zhong Shihong is the director of the technical department of Factory 410, the things he mentioned earlier about civil aviation obviously did not come from his usual work. . Of course, Ive loved airplanes since I was a child. When Zhong Shihong said this, his face was filled with memories of his childhood: When I was in elementary school, I watched a movie about air combat with adults. Because of my poor health, I knew I would definitely not be able to be a pilot, so I always regarded this as a hobby. Later, when I got the opportunity, I applied for transfer from Factory 103, which was engaged in mechanical equipment, to Factory 410. A story similar to Chang Haonans. Because he couldnt fly a plane, he chose to build one. But when you work in the 410 Factory, you rarely see a complete aircraft, right? The former asked with a smile. Indeed, most of the time I am immersed in the workshop, dealing with aviation engine parts. Zhong Shihong smoothed his hair: But another reason why I chose to transfer here is that there are more civil aviation aircraft here in Shengjing. I have saved a little money over the years, bought a camera and often go to the airport to take pictures..." As the two of them chatted, the plane quickly landed at Lianhai Airport. ?However, transportation and communication in this era were not smooth. It was not until that afternoon that the group finally met Professor Zhou Zexuan, the director of the Analysis and Testing Center of Lianhai University of Technology, after looking in several wrong places. You guys had a hard time on the road. Professor Zhou took the two turbine blades and looked at them over and over: To perform metallographic inspection on the inside of these... uh, small holes, right? What magnification is required?" Its best to measure inside and around the hole. First use 200x and 500x magnification to look at the overall appearance. If problems are found, then look at the specific details. No problem, this is quick. Because of confidentiality issues, Zhou Zexuan did not ask students to help. Instead, he put on gloves himself, wiped the surface to be tested with alcohol, and then immersed the sample in the reagent. ?While waiting for the chemical erosion, Chang Haonan asked something that he had been curious about on the road: Speaking of which, Professor Zhou, since foreign manufacturers prohibit you from moving the instrument, they probably want to restrict the specific use of the equipment. If you test it directly for us, wont there be any risks? Hearing this question, Zhou Zexuan sneered directly: "Restrict the specific use of personal P. After the equipment is purchased, unless they send someone to watch here at all times, there is no way they can know what we have done with it." The reason for writing this kind of clause is, firstly, to make us feel disgusted. Secondly, and most importantly, we are worried that users will go to third-party manufacturers to buy wearing parts and perform repairs, which will cause their profits to be damaged. Some parts have no technical content at all and cost only a few yuan at most. The Gringo Lion Costs thousands of dollars each. If you dare not use theirs, they will refuse to provide you with after-sales service. If you can buy domestically produced equipment that you can use, who would be willing to suffer this kind of anger..." Chang Haonan understood immediately. "I see" Similar to the sanctions imposed on certain institutions and schools in China in previous lives. ??For example, prohibiting you from using certain software. Everyone knows that this will not have any real impact - the original ones are all pirated. But just doing this gesture makes you feel sick. To be honest, it is the high-priced accessories and services that cause greater losses. Before his rebirth, he had also heard that many faults of imported equipment were actually not difficult to repair, but the contract required that the original factory engineers had to deal with it. The price was extremely high, and the efficiency was extremely low. Work often had to be stopped for half a minute because of trivial matters. months or even longer. ??Everyone chatted about other topics, and soon the chemical erosion process was over. ??As the director of the Analysis and Testing Center, Zhou Zexuans work efficiency is unparalleled. It didnt take long to get the optical detection results. Several black and white photos printed on paper. ?Zhong Shihong was the first to come over, followed by others in the same group, and Zhou Zexuan was quickly surrounded by people. "Um" The latter pondered for a moment and finally gave his own judgment: The material around the hole has a uniform shape, and no cracks are found. Only a very weak uneven surface can be seen under 500 times magnification, which should be left by post-processing processes such as polishing. Zhong Shihong next to him was obviously in a good mood after hearing this comment. But before he could be happy for a few seconds, the next words made his heart suddenly lift: As for the inner wall of the small hole...the light is not very bright, but at 200 times magnification, some white strips or blocks can be seen. The shape of the inner wall of the small hole that has not been chemically etched is similar to that of the small hole here. It has strong corrosion resistance..." ??Zhou Zexuan put down the two pieces of paper in his hands when he said this: "I speculate that there should be a remelted layer structure that has not been cleaned, but the specific situation, especially the thickness of the remelted layer, cannot be seen. If you are willing to pay additional testing fees, you can use a 2500x electron microscope for further testing! " (End of this chapter) Chapter 176 Inspiration brought by drinking water ( Chapter 176 The inspiration brought by drinking water ( Zhong Shihong, who was smiling just now, froze in place with a strange expression. Other people who came with him also showed various expressions of surprise and uncertainty. ?Chang Haonan was the only one among everyone present who was not particularly surprised. The situation was similar to what he had expected. Electro-hydraulic beam machining is an electrochemical machining method. In principle, micro-cracks and remelted layers will not be produced in the formed pore structure. The main problem is that the local edge quality is not stable enough, so the detection adapted to this processing method will Focus on the area around the orifice. ??However, EDM is still thermal processing in nature, and recasting will inevitably occur during the drilling process. Although the high-pressure internal flushing liquid inside the hollow electrode can quickly wash away part of the molten material during processing, the remaining part may still produce a remelted layer with very irregular thickness after cooling, affecting product quality. If the processing method is changed without corresponding improvements in the inspection process, problems will naturally arise. ? Its just that in actual operation, the relationship between the thickness of the remelted layer and the processing current, pulse width and environmental parameters is very close, so Chang Haonan did not dare to insist on this result before seeing the test results. But it works now. There is no problem with the cost, and we hope to get the test results as soon as possible. ?Zhou Zexuan nodded and took out two turbine blade samples from the optical inspection table next to him: The Electron Microscopy Center currently has ongoing tasks, but your situation is special after all. I can apply to jump in the queue. After finishing speaking, he turned around and left. With Zhou Zexuan''s operation, everyone did not have to wait too long to get the results of the electron microscope test. "We randomly selected 16 air film holes on the blade for testing. The results showed that the average thickness of the remelted layer in the holes was 25 microns, but the situation of each small hole varied greatly. The thinnest one was only 14 microns, and the thickest one was 14 microns. Its 45 microns ??As Zhou Zexuan read out the results of the test report little by little, Zhong Shihong''s face became darker and darker. He is not a person who cares about face, but this slap in the face came too quickly... After all, he had vowed a few days ago that Factory 410 would definitely have no problems with EDM drilling technology. Chang Haonan''s performance was as normal as ever. He took the report from Zhou Zexuan and looked at it. After making sure that there were no other issues worth noting, he handed it to others. The air in the room became a little anxious. "this" Even though he is very reluctant to admit it, as Chang Haonan initially guessed, there was a loophole in the post-processing and quality inspection process. ? What makes Zhong Shihong even more ashamed is that Factory 410 had previously received a letter from Yan Zhongcheng and others from Fucheng, requesting a self-examination of the production process of engine hot-end parts. But they just re-sampled according to the usual testing procedures, and restarted production after finding that there were no problems with the results. Hence, the quality problems existing in the processing of the inner wall of small holes have been missed. The evidence is right in front of you. Since you are wrong, you have to admit it. "After we return, we will hold a factory-wide workers'' meeting. We need to review this matter." ?However, the 611 Institute is very urgent for the turbojet 14B. After all, it involves Feifa matching work, and there is also pressure from foreign users who have expressed their intention to purchase. So before reviewing, you still have to solve the problem first. The evening after returning to Factory 410, the first thing held was a small-scale technical seminar. Based on the current domestic situation, it is definitely hopeless to switch to electro-hydraulic beam machining in the short term. Therefore, we have no other choice but to find a solution based on EDM technology. Zhong Shihong set the tone at the beginning: "Hey Gong, can you consider reducing the thickness of the remelted layer during the processing by reducing the current intensity or shortening the pulse width?" ?Those sitting here are all old technologies. Now that the problem has been determined to be the remelting layer, some basic principles are still not difficult for everyone. The middle-aged man known as He Gong is called He Tao, who is the section chief responsible for the EDM drilling process. Unfortunately, there is still a distance between the basic principles and actual operation. He Tao shook his head decisively: "The material processing of turbine blades is inherently difficult. Although reducing the current intensity can alleviate the remelting problem, it will affect the accuracy and position of the opening. The current current of 8 amps is already what we have determined after testing in our section. Minimum current to maintain processing quality. As for shortening the pulse width, that is beyond our control. We need to replace it with better and more precise electrodes, and the clamping equipment also needs to be replaced..." He did not continue, but the conclusion was already very obvious. ?Nowadays, this EDM small hole processing machine tool was developed after several years of hard work in the 410 Factory. Where can I find more advanced equipment? The manufacturing industry is sometimes like this. A single move can affect the whole body. Even if the principle is very simple, it often takes a long time to achieve a breakthrough if you want to implement it on the production side. Since there is no way to reduce the thickness of the remelted layer during processing, we can only consider the post-processing process. ?Zhong Shihong looked at another engineer. ?The other party coughed twice slightly, and then said: "I just looked at the test results of the electron microscope. The current 0.2mm reamer can only remove the burrs and residue on the inner wall of the small hole. Judging from the metallographic structure of the remelted layer, it is very hard and cannot be reamed through mechanical means. Completely removed. "In addition, turbine blades themselves are thin-walled parts that require high deformation. The mechanical reaming process is very difficult and very inefficient. There are hundreds of holes in the phosphor film on each product. If every small hole is processed If you do it again, I''m afraid it won''t take 100-200 working hours. Calculating, one engine will take about two months. " The progress of the discussion came to a standstill for a while. Deep hole processing is always a difficult problem in the mechanical manufacturing process. Due to its special working environment, turbine blades have more stringent manufacturing requirements. The number of air film holes is large and the diameter is small, so many commonly used polishing methods cannot be used. In fact, with the technical strength of Factory 410, it cannot even detect the thickness of the remelted layer. This is also an objective factor why they have not discovered this problem before. Chang Haonan, who had been sitting next to Zhong Shihong since the beginning of the meeting, had not spoken. He listed several major current problems one by one on the notebook in front of him. First of all, there must be something with high enough hardness so that the remelted layer can be removed. According to the results of the discussion just now, steel reamers cannot meet this requirement. The second thing is that this process cannot cause damage to the blade itself, and the clamping process should be simple enough. Finally, the processing efficiency must be high enough. It is best to be able to process hundreds of air film holes on a blade at the same time rather than one by one. Chang Haonan, who had no idea for a moment, almost unconsciously picked up the cup in front of him and took a sip of water. The fried meat with sprouts for dinner was a bit cumbersome... At this moment, a flash of inspiration suddenly flashed through my mind. It seems...this process is somewhat similar to mouthwash, or teeth cleaning? Can we consider using water... No, what about using fluid doped with high-hardness abrasives to remove the remelted layer? I cant contact the editor, lets talk about 174. The general content is that the existence of the remelting layer was discovered through testing, and by the way, the protagonist was asked to brainstorm the layout issues related to the production of large aircraft. (End of this chapter) Chapter 177 Revolution in the field of finishing (Happy National Day!) Chapter 177 Revolution in the field of finishing (Happy National Day!) After grasping this fleeting thought, Chang Haonan suddenly felt that the road was getting wider. The hole diameter (tooth gap) of 0.3 mm is an unwieldy size for a reamer (toothpick), and the microstructure inside the hole is also very unfriendly to the reaming process. ??Moreover, the reamer has to rotate after all, so it cannot be made of a material with high hardness but brittleness, otherwise it will easily collapse. Just like a toothpick that breaks easily during use. But to change the idea, process ultra-high hardness corundum or diamond into powdery objects with a particle size of about 100 microns or even smaller, then mix them with water or oil or other fluid matrix, and pressurize them The air film holes flowing through the blades can completely meet all the conditions written on the notebook. This is the idea behind the dental rinse used by many people in later generations. Comrades, I have an idea. ?Chang Haonan put down the water glass in his hand. Everyones eyes turned over instantly. ?Although he is not an engineer at Factory 410, he does not seem to have any experience in the manufacturing field. But in the past six months, Chang Haonan has created too many miracles on the J-8C and Turbojet 14. Enough for everyone here to ignore his intellectual background. I thought of a new way of grinding. Chang Haonan stood up as he spoke, walked to the blackboard not far behind him, picked up a piece of chalk, and drew something similar to a funnel on it: "The general structure of this equipment should be like this. There are two symmetrical cylinder-shaped containers. The parts and fixtures are fixed in the channel between the two containers and the piston in the cylinder squeezes the abrasive to flow back and forth. The relationship between the abrasive fluid and the surface to be processed The flow between them can produce grinding effect. ?His drawing skills are average, and many of the proper nouns in mechanical processing are not used strictly enough. Fortunately, the audience below are all knowledgeable, and they can still understand the schematic diagram on the blackboard even after drawing and talking. Sandblasting process? Soon someone said a noun: "It is said that in Germany, this method is used for polishing when manufacturing internal combustion engine cylinders, but it mainly relies on the impact of the spray material on the surface of the workpiece. There are certain requirements for the particle size and size of the abrasive, which is difficult to use in our application. Above the air film holes of this size. This process name is new knowledge to Chang Haonan. He has not been exposed to it before, but from the other party''s words, he still heard the difference between his own thinking: So we cant copy these processes directly. Chang Haonan also drew a key symbol on the abrasive part inside the container: "The fluidity and controllability of pure solid abrasives are too poor. During the processing process, they will inevitably cause damage to the parts of the turbine blade surface that do not need polishing. So my idea is to use very fine hard particles, such as Silicon carbide, white corundum, and diamond are mixed with related liquids to form a paste-like, semi-fluid medium as an abrasive. " "As the saying goes, water has no shape. Such soft abrasives can automatically drill into the holes that need to be polished under pressure like a liquid without having much impact on the outer surface. Don''t talk about our straight-through air film holes. , even curved holes and special-shaped holes with more complex internal structures can be processed using this method! After finishing a large paragraph of content, the whole conference room was silent. Everyone, including Zhong Shihong, began to seriously think about the feasibility of the ideas on the blackboard. ??Although the hand-drawn chalk drawing itself is slightly abstract, the ideas contained in it are obviously extremely valuable. Grinding, similar to turning, milling, planing, etc., is also a typical cutting processing method. However, as human beings'' requirements for surface smoothness increase and the emergence of various non-planar and non-axisymmetric parts, it is difficult for traditional grinding machines to meet the increasingly bizarre industrial requirements. ?Especially the concave and convex surfaces and curved channels, which cannot be effectively processed by ordinary tools and molds. This is also a recognized problem in the field of finishing today. The answer currently given by developed countries is electrochemical grinding. It is said to be grinding, but in fact what really works is the electrolysis process. The workpiece to be processed is used as the anode of the electrolytic cell, and polishing is achieved under the condition of electricity through the difference in chemical potential between the metal matrix and the impurity layer on the surface. Obviously, this requires an extremely strong electrochemical level. As long as the control conditions fluctuate slightly, intergranular corrosion can easily occur, causing the entire product to be scrapped. ??If Factory 410 has this ability, it would be better to use electro-hydraulic beam processing from the beginning to avoid the formation of a remelted layer from the root. In fact, this is also a common problem in Chinas manufacturing industry today. ? Its not that a certain key technology is not up to standard, its that everything is not up to standard. With so many things going on, its even difficult to find a quick and effective starting point. The 410 factory is just a microcosm of it. This leads to the fact that even if some technological breakthroughs are made, such as EDM drilling technology, there are still shortcomings in other aspects of the entire process, and the final product is often still unsatisfactory. Chang Haonans idea is equivalent to making the shortest board of the barrel longer. If it can be realized, the 410 factory will definitely not be the only one to benefit. The entire machining industry, and even the entire manufacturing industry, will directly benefit from this! I think this idea...is worth a try! ?The first person to speak was the engineer in charge of the product post-processing section: But according to my experience, the core technology of this process should be the formula of soft abrasives and the pressure parameters during grinding of different workpieces. If we have to start from scratch in this aspect, we may have to be prepared for a long and difficult battle. According to common sense, his concerns are obviously justified. ?This thing is somewhat similar to materials science. It is difficult to determine the direction directly when you first start researching. You often need to cast a wide net to try your luck. ?For example, the composition, proportion, and particle size of the abrasive particles, as well as the viscosity and chemical properties of the abrasive matrix, etc., all need to be tried out bit by bit. As the research process becomes more and more in-depth, we will gradually find some rules and reduce blindness to a certain extent. ?However, there happens to be an unconventional person here. Dont worry about that. The most troublesome part in the eyes of others is actually what Chang Haonan is best at: Regarding the development of soft abrasives and the control system during processing, I can use some simulation methods to initially determine the most feasible research direction. The progress should be much faster than you expected. But other parts of this grinding equipment, especially the tooling fixture and the mechanical structure that specifically implements the piston extrusion in the cylinder, need other people to help me complete it. After Chang Haonan finished speaking, he gently put down the chalk in his hand. What came into view were a dozen faces full of stunned expressions. This...can also be simulated? Additional update (End of this chapter) Chapter 178 Seiko Project (2-in-1) Chapter 178 Seiko Plan (two-in-one) The person who asked the question was Yao Mengna. She just felt like she was back to that night when she just met Chang Haonan, when he explained with a flat face why the CFD method could not be used to simulate the vibration problem of straight wings. ?Yao Mengna once thought that after such a long period of hard work, at least she would not encounter such embarrassing scenes again. But apparently she still slightly overestimated herself. When the subject was extended to another field, the distance between the two seemed to be suddenly widened again. It really doesnt work using traditional methods. ?Chang Haonan rotated the blackboard 180 to the other side. In fact, he had only just sorted out his ideas about using the discrete element method to numerically simulate soft abrasives, and had tried it out through the system. [Based on discrete element theory, establish a three-dimensional model of abrasive particles, set the size, shape, concentration and density of the model, consider the coupling effect between fluid and abrasive particles, and establish abrasive particles and abrasive particles, abrasive particles and fluid, abrasive particles The contact model with the inner wall surface simulates the force and movement of abrasive particles in the fluid, predicts the movement rules of discrete phase abrasive particles, analyzes the removal mechanism of workpiece material by abrasive particles during abrasive flow polishing, and predicts the effect of abrasive flow polishing...] Although the discrete element method has been created in the 1970s, the attention it has received so far is basically limited to the field of geotechnical engineering, and is far less widely used than the continuous element method. The result was naturally a success. Consumption of science and technology points for improving the project: 25 points, 250 points for directly giving project results. Are you sure to carry out the research project: Soft abrasive polishing and material surface removal mechanism based on discrete element method? This time, Chang Haonan did not hesitate for too long and chose to confirm. On the one hand, this is not an area that he is good at, and more importantly, due to the technical zero principle that triggered quality problems, not only the production of the turbojet 14B, but also the turbojet 14A has been temporarily stopped. Now he is preparing to The four batch 00 J-8Cs delivered to the troops for trial have already started work in the workshop of Factory 112. No one wants to see the completed airframe unable to be delivered because it has to wait for the engine. On the other hand, the control theory paper published on IEEETransactionsonAutomaticControl allowed him to directly obtain up to 100 scientific research points and 2500 theoretical experience points, so there is no harm in splurging on the points. In an instant, a huge amount of knowledge and experience poured into my mind. Even though he had had this experience many times, he was still fascinated by the feeling of being filled up. Chang Haonan took a deep breath, raised his hand to gently support his swollen head, and continued as if nothing happened: As we all know, whether it is the finite element method or the finite volume method, an important basic assumption is that the dielectric material under study is in a continuous state. "Under this assumption, the physical properties of materials can be expressed by continuous functions. These functions that express physical properties are usually called physical equations. By combining the physical equations of the material, the equilibrium equation of the problem, the boundary conditions and the initial conditions, we can Obtain the governing equations of the problem and obtain numerical solutions under specific conditions. However, this type of numerical method has great problems when dealing with bulk materials composed of a large number of solid particles, because each particle in the granular material moves independently, which means that each unit node is likely to undergo large deformations. and displacement. But we can completely change the perspective and focus on the detailed description of the contact behavior between particle objects, between particles and boundary models, and the overall balance relationship, that is, discrete element thinking. Relate the contact behavior between objects with the momentum balance equation of the system, establish a differential equation of motion for each particle unit, and the motion equations of all particles describe the overall motion law of the discrete system. "The main research process, I currently judge, can be divided into four steps. The first is to use mathematical language to describe the surface shape, movement and wear of the boundary model, and the second is to make judgments on the contact between the particles and the complex boundary model..." Chang Haonan talked about some basic theories for about twenty minutes, and then found that most of the people below looked at him with clear eyes. Fortunately, there are still a few younger engineers, and Yao Mengna is thinking seriously, and it seems that she understands at least part of it. that''s enough. Similar to the situation at Institute 601, there are not a few people who need to cooperate with him in numerical simulation work. More people still have to be responsible for specific equipment development work, that is, to actually design and manufacture an adaptive software. The abrasive grinder comes out. As for the issue of discrete element simulation, interested comrades can talk to me in detail after the meeting. I probably need 3-4 people to help me with the programming and numerical analysis process. As for the remaining machine tool design part, I think we may need to find some external assistance. After all, the main business of Factory 410 is to manufacture aerospace engines rather than machine tools. It would be okay for them to make some technical improvements, but it would be a bit too difficult to build a new grinding equipment from scratch. This is not difficult. Zhong Shihong, who saw the dawn of a solution to the problem, instantly became energetic: Shengjing No. 1 Machine Tool Factory has always been a cooperative brother with us. They should be more experienced in this area. In particular, the development of abrasives and control systems have been completed by regular workers, and the rest is purely mechanical. As for the specific method of cooperation... Zhong Shihong lowered his head and thought for a while: "I think the cooperation between the two factories is not enough. If this equipment can be developed according to Chang Gong''s ideas, it will be a huge encouragement and promotion for the overall development of our country''s manufacturing industry. It just so happens that it is the end of the year. so" My opinion is to urgently apply for a project from above, called the Precision Works Plan. The goal is to systematically improve the production and manufacturing levels of various manufacturing plants in our aviation industry system! Obviously, Zhong Shihong also has some ambitions hidden deep in his heart. For him, even if the main person to complete this project can only be Chang Haonan, as the leading initiator and the director of the technical department of the 410 Factory, as long as it can be successful, the benefits will definitely be indispensable. From a larger perspective, if this new finishing method can be quickly promoted, it can also solve the urgent needs of many brother units. ?Although the original intention of proposing this idea was just to polish the inner wall of the air film hole, its application range is obviously very wide. ? Even if we only consider the field of aviation manufacturing, there are a large number of variable-diameter pipe parts, such as fuel and oil pipelines, fuel injectors, air guide holes, etc. The production efficiency and yield rate of each type are long-standing problems. Very good, then... lets do it. ?Chang Haonan has already experienced the benefits of doing this kind of project before. ?Funds and manpower are sufficient, and various resources applied for are basically given priority to ensure a green light all the way. More importantly, the personnel subsidies are very generous. Even Factory 182 can give out a bonus of 20,000 yuan at a time, let alone Factory 410. ? He ??considers himself not a person with strong material desires, but who wouldnt want to earn more money while completing projects. ??For such an urgent matter, it is of course impossible to wait until the project is approved before starting construction. So the next day, before Zhong Shihong started writing the application report, several key personnel from Shengjing No. 1 Machine Tool Factory had already arrived at Factory 410. The team was led by a fat, middle-aged engineer named Han Youde who looked to be in his forties and looked elegant. ?After hearing Chang Haonans complete idea about the new grinding equipment, he was stunned for about a second. Then he spoke a somewhat obscure foreign language phrase almost subconsciously. ?Chang Haonan didnt understand, but it wasnt English anyway. Fortunately, the other party reacted quickly, picked up a sharpened pencil from the table, and started drawing directly on a piece of drawing paper. ?Compared to Chang Haonan of the abstract school, Han Youde''s painting skills are obviously much better. Although it is a schematic diagram that does not even use a ruler or compass, it is still horizontally, vertically, and very regular. "often" Chang Haonan. Someone gave a just-in-time reminder. I came into contact with the equipment described by Comrade Chang Haonan more than ten years ago when I was studying in East Germany. Directly translated from German, it is called fluid abrasive processing, or abrasive flow processing. ?While Han Youde was speaking, he did not stop moving his hands. In a few minutes, the general outline of a machine appeared on the paper. The principle of this grinding method is not difficult, and the equipment is also very simple. Except that the fixture needs to be customized according to the parts to be processed, I can complete the design of other parts in about four to five days. Master Chang Haonan himself heard more than one gasp ? also includes his own. "So fast?" Similar questions are usually asked by others to confirm to him, but now the situation has changed and it is his turn to ask. The main reason is that this efficiency is indeed a bit too exaggerated. "Because this abrasive flow processing method is actually not a new technology. As far as the machine tool itself is concerned, it is almost the simplest type. There are no high-speed rotating parts or high-pressure parts. It does not even require any design. Even if I am in If you copy the equipment that East Germany saw, it will not fall behind in another twenty years. ?Han Youde threw the pencil on the table: The real difficulty of this process lies in the design of the abrasive ratio and control system. Such a good idea has never been widely used abroad. There are very few people in China who even know about it. This is why. "Due to the inherent defects of soft abrasives, they have to be specially designed for almost every different workpiece. The machine I saw in East Germany was used to process a high-pressure common rail pipe. We can look at the equipment casually, but the abrasives The recipe is top secret, and it is said that it took them almost two years to find the optimal solution for that part. It doesnt matter, this part of the job is what Chang Gong is best at. Someone next to me interrupted. Looking at it this way, I think this craft is quite interesting. Hearing the words of the people around him, Han Youde raised his head and glanced at Chang Haonan next to him. ?But he didnt say anything, he just nodded calmly: Anyway, its not easy to come up with this idea without seeing abrasive flow equipment before. Lets get started. Although the project entities are 410 Factory and Shengjing No. 1 Machine Tool Factory, these two companies obviously do not have enough conditions for Chang Haonan to do numerical simulation. Fortunately, the current focus of work on the 601 side has been shifted to Project 11. The computing center is mainly responsible for digitizing the Su-27 design data together with Russian experts. There is no large-scale calculation work to be done for the time being. ?So after going round and round, I finally went back to No. 601 to borrow a few workstations and three people including Lin Shikuan. Although the discrete element method is quite different from the continuous finite element method in terms of theoretical basis and calculation ideas, numerical simulation is an ever-changing thing after all. Several people who already have the foundation did not let Chang Haonan spend too much chalk. and tongue, you can roughly understand the work that each of them has to accomplish. ?Especially for Lin Shikuan, it has been like a sudden enlightenment in recent months, and he has made rapid progress. When we first met, he didnt even understand how to digitize paper materials, but now he can draw inferences and put forward some of his own understanding. ?After receiving her mission, Yao Mengna did not leave immediately, but approached Chang Haonan: Junior brother, I think this contact judgment problem only requires a neighbor search and then an intersection test. It doesnt seem to take as long as you arranged? If we talk about the matter, it is indeed true. The air film hole on the turbojet 14 is a circular hole, the flow path is very simple, the grid construction and the selection of boundary conditions are easy, and the calculation amount is not large. ?Chang Haonan has opened the workstation at this time and is verifying the algorithm according to the ideas he has written long ago: But I have some further ideas. "The Korean worker at the machine tool factory was right when he said that soft abrasives need to be designed individually for each workpiece. This is not difficult for us to achieve. However, most corporate engineers have average theoretical knowledge and we cannot expect them to learn it from scratch. Discrete Element Fundamentals and Computer Programming. "So, I plan to develop a three-dimensional particle discrete element simulation software that is relatively easy to use based on the ideas I used when doing CFD. This process has great application potential. Only by lowering the learning threshold can more manufacturers use it. Benefit. Hearing this answer, Yao Mengna''s red lips moved slightly, but she couldn''t make any sound. She just stared at Chang Haonan''s profile for a while. I dont know when she started, but she liked to peek at each other from this angle. ?Obviously he is his junior disciple, but not only does he have a stronger scientific research ability, but he even thinks about things from a different perspective. "well" After a short while, Yao Mengna sighed softly, turned around and left with a complicated expression. (End of this chapter) Chapter 179 Domestic Sibei is saved! Chapter 179 Domestic Sibei is saved! With the help of the system, the entire numerical simulation process went more smoothly than Chang Haonan expected. The design of the discrete element simulation software took about a week, but sharpening the tool did not waste time cutting wood. The software created under the system buff was very efficient. It was quickly based on the actual conditions of several typical workpieces and comprehensively considered the processing efficiency. and polishing effects to find the optimal solution. The abrasives are silicon carbide particles with an average particle size of 400 mesh, and the fluid is made of aviation kerosene as the base, with a certain amount of suspending agent, emulsifier and antioxidant added. ?This formula is very versatile and can be used for most deep hole and variable-diameter pipe workpieces. Chang Haonan even spent an extra day to complete the design of the PLC program. ?This procedure is also the top priority of the abrasive flow processing system. Because soft abrasives are not as "obedient" as grinding wheels, it is easy to cause over-processing. That is, after the remelted layer has been removed, the base material on the inner wall of the air film hole continues to be ground, eventually causing the workpiece to be scrapped. A good PLC program can avoid this problem to a large extent. On the other side, although Han Youde looks a little arrogant, he does have real talent and practical knowledge. It only took him three days to complete the overall design of the abrasive flow equipment. When Chang Haonan combined the abrasives and PLC program When it was done, the equipment of Shengjing No. 1 Machine Tool Factory also went offline while the masters worked in three shifts overnight. ?Zhong Shihong has been so happy these days that his face is almost smiling Since the application he submitted has been approved, the Seiko Plan has officially been established. ? And considering the huge impact that this plan may have in the future, the higher-level departments directly promoted it to a national-level project led by the Committee of Science and Industry. ?Even Chang Haonan, who has no official position, was designated as "General Technical Advisor" by Ding Gaoheng. As the flagship of the entire plan, this abrasive flow processing equipment has naturally received considerable attention. ?The grinding process may seem inconspicuous, but it is actually an essential part of the finishing process. So almost all the units participating in the Seiko Project sent technical personnel to see with their own eyes the new tricks produced by Factory 410. In the following day, the raw materials on the list were purchased one after another and transported to the 410 Factory. After a series of processes such as emulsification, stirring, and blending, they finally formed a lead-gray paste-like semi-solid, which was then poured into the prepared abrasive tank. among. Operators begin the final technical inspection before starting up the equipment. Since there were so many onlookers and they had to maintain a necessary safe distance from the production equipment, many people could only take a glance at it from a distance. That black thing is the core technology they developed? An old engineer with half white hair was a little doubtful. Soft abrasives look like a lump of half-melted ice cream, and they really dont look that good. ??And in general understanding, the process of "grinding" is to use a harder thing to remove a softer thing. Soft abrasives will indeed have an impact on the traditional concept. ? Judging from the temporary pass hanging around his neck, he comes from Bingcheng Boiler Factory. ?This factory does not burn boilers, but makes boilers. Most of the coal-fired boilers used for power generation in the country and many power boilers supporting steam turbines come from here. Recently, they are bidding for a power boiler production project for a new guided missile destroyer, but they have been troubled by insufficient processing and manufacturing capabilities, and several key indicators cannot meet the requirements. At this most critical juncture, the news came that the Science and Technology Commission was presiding over the launch of the Seiko Plan. Bingcheng Boiler Factory almost rushed to get on the bus at the last moment before closing, and it did not know much about the situation at the 410 Factory. few. Yes, I heard a report last night. They said it can increase the polishing efficiency of irregular surfaces by more than five times, and it can also handle difficult workpieces such as deep inner holes and variable-diameter pipes. The other engineer next to him from the 408 Factory of Shaanxi Diesel Heavy Industry was much more comfortable. Their situation is similar to that of Bingcheng Boiler Factory. Recently, they were responsible for the licensed production of MTU diesel engines, but the crucial localization rate indicator was stuck at a threshold and could not make further breakthroughs. So after learning that This Seiko project required participation from the first moment, and a large amount of project funding was also provided. "I''ll go, 5 times...can''t it be a satellite?" Lets see, it shouldnt take too long. ?While the onlookers were discussing, the trained technical workers had completed loading and setting the processing program. ?This process was originally planned to be operated by Chang Haonan himself, but the latter believed that the advantages of this "fool-like" software could be better demonstrated by workers with ordinary education levels. A lubricating oil elbow on the turbojet 14 is tightly fixed by a clamp Factory 410 itself does not have the ability to conduct metallographic inspection of the inner wall of the air film hole, so in order to more intuitively demonstrate the ability of abrasive flow processing, Zhong Shihong and Chang Haonan finally decided to make a variable-diameter bent pipe that is equally difficult to process. To get the "first blood" of this device. To be precise, it should be half a piece, because a part was cut off from the front and will be used to compare with the situation after processing. The start button is pressed, and the compressor makes a buzzing sound. ? There seemed to be no change at first, but after about ten minutes, toothpaste-like waste abrasive began to be squeezed out from the preset drainage holes around the clamp. The workers who had been waiting for a long time next to them immediately began to fill in the prepared new abrasive. Processing continues. No one present felt bored.????For such a complex workpiece polishing process, it is normal for it to last several hours. After about 50 minutes, the clamp is opened. ? ? There seems to be no change in the appearance of the workpiece after being washed with aviation kerosene. Its less than an hour...Isnt there not enough time? If its five times more efficient, its pretty much the same... Operators were not disturbed by these discussions: Get on the cutting machine! ??The inner diameter of the lubricating oil pipe is enough to directly insert the probe into it for surface roughness testing, but from an intuitive perspective, it is definitely better to cut it directly. The two workpieces, polished and unpolished, were quickly divided into two parts. Under the factory lights, you can see the difference even with the naked eye. The inner wall of the workpiece on the left is so bright that it can almost be used as a mirror. Of course, for the sake of rigor, the tests that should be done still need to be done. The inner wall of the workpiece before polishing has an average roughness Ra value of 1.466. ?Chang Haonan personally went into battle and read out the first test result displayed on the screen. ??The crowd of onlookers who were still discussing just now also returned to silence. Everyone is waiting for his next words. Inner wall of the workpiece after polishing, average roughness Ra value=0.367! The surrounding area was boiling almost instantly Im a good boy Can it really be so fast? ?On the other side of the crowd, several men wearing aviation industry work clothes looked at the machines in front of them with almost glowing eyes. As a brother unit within the system, it is natural for them to receive some special treatment when visiting, so they can observe the entire process from a better angle and closer distance. Zhang Gong, this A younger engineer said in a voice trembling with excitement: If this can be used, Sibeis localization should..." Obviously, they came from the 430 factory in Haojing. ??Although the introduction and assembly of the Spey MK202 engine was completed in the mid-1970s, due to various reasons, the actual localization work went through many twists and turns, and it was not until 1995 that it passed acceptance. ?It is said to be "localization", but in fact, the localization rate of Sibei at this time is only 70%, and a large number of core components are still imported from stocks more than ten years ago. Yields are low and unsustainable. ?Originally, when the Sibei technology was introduced, there were many conflicts between Haojing and Shengjing. But as the original Spey engine on the JH-7 gradually reaches its end of life, the pressure on the former is also increasing day by day. ?Especially since the Turbojet 14 made big news at the Xiangzhou Air Show some time ago, it would be absolutely false to say that I am not jealous or envious. So Factory 430 did not care about the issue of face and directly sent over a group of engineers responsible for the Sibei localization project. It should be a big step forward! The middle-aged man known as Zhang Gong said and punched the air in front of him: It is better to ask the 410 Factory to do things than to ask the British to do things. Ill go find Zhong Shihong myself! (End of this chapter) Chapter 180 PlayerUnknowns Battlegrounds 430 Factory Chapter 180 PlayerUnknowns Battlegrounds 430 Factory There is no doubt that the machining results of the live demonstration were an unprecedented success. The lubricating oil pipe that was cut on the spot directly brought the atmosphere of the scene to the extreme. The Ra value of 0.367 has even exceeded the minimum requirements for mirrors in this era. Even in this kind of exchange meeting where everyone is an industry insider, it is still very important to catch peoples attention with a shocking program effect. Otherwise, there would not be all kinds of exhibition boards and posters that have been carefully crafted with countless efforts at those academic exchange meetings. In fact, although many units have shown themselves to be actively participating in the Seiko Project, a considerable number of them are particularly active simply because the project is directly led by the Science and Technology Commission. Put simply, it means making a gesture of support. ? Like Shaanxi Diesel Heavy Industry 408 Factory, there are even fewer people who directly express their willingness to pay and help. During the process of processing just now, Chang Haonan carefully observed the surroundings and found that there were still many representatives sent by the factory who did not quite believe that this plan could really produce anything. ?However, this situation was within his expectation. ?In this era, or even twenty years later, when it comes to the field of finishing, people generally think of countries such as Japan, Germany, and Switzerland. ?If the ideological stamp is so easy to remove, it wont be considered a stamp at all. ?Under such an environment, it can be said that Zhong Shihong dared to take the initiative and propose this fine work plan, which can be said to be an extremely courageous act. This is also the main reason why Chang Haonan chose to support the other party Its time to disenchant everyone. Minister Zhong, after today, Factory 410, and of course you, will probably become the leader in the field of finishing in the entire Science and Technology Commission system. ?Chang Haonan came to Zhong Shihong not far away and said in a half-joking tone. Hey, its okay for others to say this, but when you say it, youre flattering me. ?Zhong Shihong looked at the fiery processing site and couldn''t hold back the smile on his face. ?But he was not carried away by joy: Brother, you are the technical general advisor of the Seiko Project. My family knows my own affairs. My project application was approved and I was able to receive such attention because of your light. Old clock! ?At this moment, a deep voice came from behind the two of them. Chang Haonan turned around and saw an engineer about the same age as Zhong Shihong trotting over. Lao Zhang? The latter is obviously very familiar with this person: Factory 430 sent you directly here? The two shook hands directly after meeting. Chang Gong, let me introduce to you. This is Zhang Zhenhua, the technical director of Haojing 430 Factory. Zhong Shihong took the lead in introducing the identity of the visitor to Chang Haonan. Hey, the position of your Minister of Technology has been vacant for several years. Whats the difference between being a principal and a deputy? You cant mess around with that either Zhang Zhenhua chatted briefly with Zhong Shihong, and then took the initiative to shake hands with Chang Haonan. ??Although he didn''t know the young man in front of him, since Zhong Shihong chose to introduce his identity first, it showed that the other person''s status was not low, and he was definitely not an ordinary engineer from the 430 Factory. Lao Zhang, this is Comrade Chang Haonan, the technical general advisor of Seiko Project. The overall idea of ??the abrasive flow processing equipment we are showing today was proposed by Chang Gong. Chang Haonan ?Zhang Zhenhuas eyes widened instantly when he heard the introduction. ??This name is now quite famous in the aviation industry system, not to mention that he also holds the title of general consultant. Sometimes, even if the same person wears a hat, even if it is just a hat without much real power, his status in other people''s hearts will be completely different. "I heard that you, Mr. Chang, played an important role in the technical improvement of the turbojet 14 in the 606 Institute this time?" Zhang Zhenhua has not forgotten why he came here. ??Reminiscing about old times with Zhong Shihong is just a way to get into the topic. The core is still to find a way to revitalize the localized Sibei. The technical level of Factory 430 is inferior to that of Factory 410, and the research and development capabilities of supporting institutes are better than nothing. This domestic Sibei project is a matter of life and death for them. ?Thousands of mouths in the whole factory are waiting for food. ??If self-rescue fails, we can only consider stripping off assets and employees like Factory 420 and then selling the land... ?However, the economy of Haojing is not as developed as that of Chengdu. Even if you want to sell yourself, you may not be able to get a good price. So the pressure on Zhang Zhenhua is not small at all. In his eyes, Chang Haonan standing in front of him could save lives! Well...it has played some role. Chang Haonan nodded. Although his words were not too obvious, it was equivalent to recognizing Zhang Zhenhua''s statement. ??The latter almost couldn''t hold back the surprise in his heart, and bit the tip of his tongue to prevent himself from losing his temper due to excitement. After taking a few deep breaths, he decided to get straight to the point. The unhappiness between Factory 410 and Factory 430 actually happened more than 20 years ago. For the generation of Zhong Shihong and Zhang Zhenhua, it was not something that was unspoken. Besides, completing the project is more important. Lao Zhong, General Counsel Chang, I hope to obtain some technical support on aero-engine design and manufacturing within the framework of the Seiko Plan. Of course, in terms of funds, we can float it upward based on the internal allocation price. Nowadays, all factories have basically been transformed into enterprises, so even among fraternal units, accounts must be settled clearly. The two people across from each other looked at each other. ??The meaning in Zhong Shihong''s eyes was very clear, that is, let Chang Haonan make the decision. The latter can certainly guess what Factory 430 is going to do when it comes to ask for help at this juncture. It is nothing more than that the Turbofan 9 project is in trouble. ?This was originally the purpose of the Seiko Project, so it was naturally impossible for him to refuse. ?Especially since this project has just started, it needs to achieve some results quickly. The Seiko Plan is now led by the Science and Technology Commission. ?Zhong Shihong, who proposed the project, is already very satisfied with it. On the contrary, Chang Haonan began to feel that this was not enough. Because he remembered that just six months later, in June 1997, a strategic scientific research plan that would affect the next two decadesthe National Key Basic Research and Development Planwould be born. Later it was often referred to as the "973 Plan". If you do it properly, you can definitely get a free ride on this. ? Once successful, it will be a huge benefit to both the Seiko Project itself and Chang Haonan himself as a technical consultant. But now that the Turbojet 14 is close to being finalized after all, it has already had its share of the limelight, and it is difficult for the Seiko plan that has just been approved to gain popularity. ??As for the Turbofan 10, it has not yet been revealed, and it is almost impossible to produce anything that can be called a "result" within half a year. ?At this lean time, assisting Factory 430 in promoting the localization of Sibei is not only helping the other party, but also helping yourself. So Chang Haonan nodded directly: How about we talk in detail after dinner? As soon as these words came out, the two people next to him showed expressions of surprise and surprise respectively. Arranging a separate time for communication instead of having a casual chat at this exhibition clearly shows that Chang Haonan attaches great importance to the situation at the 430 factory. This kind of attention was obviously something that even Zhang Zhenhua himself did not expect. Let alone Zhong Shihong. (End of this chapter) Chapter 181 A few things about Turbofan 9 Chapter 181 A few things about Turbofan 9 ??Although he didn''t quite understand why Chang Haonan was so interested in the domestic Sibei from Factory 430, Zhong Shihong didn''t ask any more questions. He knows that he should unconditionally support all decisions of the general technical advisor. At least that is the case if it does not seriously affect the interests of the 410 factory. So that evening, the two met in a small conference room with several technical backbones sent by the 430 factory. Zhang Zhenhua spread out some of the technical materials he brought on the conference table. General Counsel Chang and Director Zhong, the main work our factory is currently doing is to strive to localize the SPEI MK202 engine introduced in the past in accordance with the deployment of superiors. This model is currently planned to be named Turbofan 9 Qinling. At present, the navy and air force aviation units recognize the combat capabilities and cost-effectiveness of the JH-7, and hope to equip more aircraft of this type, so there should be a lot of turbofan 9 equipment in the future. He spent a few minutes briefly introducing the status of the Turbofan 9 project. ?Of course this link is mainly for Chang Haonan. After all, he is only in his early 20s, so normally he shouldnt know much about things in the late 1970s. ?Chang Haonan was also happy to take some time to listen to it, otherwise it would be difficult for him to explain where his knowledge about Turbofan 9 came from. Besides, there are some secret history-level things in it that he really didnt know before. In short, Zhang Zhenhuas idea is to directly purchase equipment or engage in cooperative research and development through investment. First, he can imitate the original Sibei MK202 to solve the urgent needs of the JH-7. Then, if Chang Haonan still has extra energy, , then it would be best to give the Turbofan 9 a radical improvement just like the Turbojet 14. "Um" Chang Haonan looked at the information about Sibei on the table and did not immediately give a positive answer. Instead, he touched his chin and thought for a while. ?This moment of hesitation made Zhang Zhenhua, who was sitting opposite, feel nervous again after he had just relaxed a little. Fortunately, he studied the previous experience of this general counsel in the afternoon and found that the latter had participated in the formulation of a series of independent aviation industry standards and seemed to have a strong obsession and persistence in self-reliance. ? And this kind of people are often the most disdainful of the argument that it is better to buy than to rent than to build. ?So he gritted his teeth and continued: "Many people now have the opinion that they should go directly to Rolls-Royce and buy hundreds of SPEI engines for the JH-7, but we still feel that if we trust this core equipment that affects national defense security to foreign countries, Especially when it comes to purchasing from Western countries, its somewhat unreliable. Of course Chang Haonan knew that the other party was trying to provoke him with words, so he immediately waved his hand: Dont worry, I will definitely support the continued push of Turbofan 9. But the specific operation is still somewhat different from what you think. ?Zhang Zhenhua felt that he needed to keep some quick-acting Jiuxin Pills on hand. "what do you mean" ?Chang Haonan organized the language slightly: No matter who was right or wrong in the debate in the 1970s, from a current perspective, the technology of SPEI MK202 has indeed lagged behind. Except for the two indicators of military fuel consumption and maximum thrust on paper, Speys performance is not even comparable to the finalized turbojet 14A. And more importantly, its upgrade potential has been squeezed out. The ring-tube combustion chamber and excessive bypass ratio have fundamentally limited its use in fighter jets. So, the only use of this model at present is to be equipped on the JH-7 model. ?After hearing this, Zhang Zhenhua nodded helplessly. Although he is unwilling to admit it, what Chang Haonan said is all true. Spe''s design is really too old, and even in the era when it was first introduced, its performance was very average. Its thrust at medium and high altitudes is not even as good as the turbojet 7. ? It is also for this reason that the overall performance of the British version of the Phantom-F4K fighter equipped with a turbofan engine is not as good as that of the American version of the late-model Phantom equipped with a J79 turbojet engine. ? 20 years ago, it could be said that Speys design concept was at least advanced, but now, especially after the emergence of the turbojet 14, the situation has changed. ?At this time, Chang Haonan changed the topic and said: But what you just said is right. The domestically produced Sibei, or turbofan 9, plays an irreplaceable role for the JH-7. So, I hope to use a more resource-efficient way to help you get the Turbofan 9 out, and also make subsequent upgrades. ?Although there is no such concept at the moment, Zhang Zhenhua feels that he should be PUA, and there is evidence. ?But he had no other choice. Tell me about it. ?Seeing that the heat was almost over, Chang Haonan stated his ultimate goal: I hope to use the Turbofan 9 project to verify some manufacturing technologies. Technical verification? ?This statement made Zhang Zhenhua look a little confused. Neither Qinling nor Kunlun can meet the needs of third-generation fighter jets, so the project to develop third-generation high-thrust turbofan engines must be put on the agenda as soon as possible. ?Chang Haonan stood up and paced slowly while giving an explanation. Not only for Zhang Zhenhua, but also for Zhong Shihong. We must admit that we lack too much technology in this area. With our current capabilities, it is difficult to complete even the design work, let alone the other parts behind it. "But if we have to wait until the preliminary design of the turbofan 10 is completed and we start to solve the manufacturing problems when we start manufacturing the engineering prototype, then the cycle is a bit too long, and the time spent focusing on the design is equivalent to a waste. Half of it. So I plan to synchronize these two processes, or nearly synchronize them. While improving the design plan, I will also verify and improve some new technologies that may be used in the production and improvement of turbofan 9. According to my thinking, the design of the Turbofan 9 should not change much compared to the Spey MK202, but as our manufacturing technology advances, it may gradually use precision-cast receivers and parts without margins. A series of new things such as fans and single-crystal turbine blades made of new materials. Of course, in the process, its performance will definitely be improved compared to the original version. Zhang Zhenhua understood. ?Zhong Shihong also understood. ?Chang Haonan is playing a big game. ?At the expense of slightly sacrificing the design finalization progress of Turbofan 9, we ensure that the more important Turbofan 10 will achieve higher research and development efficiency. ?If all goes well, the small batch production stage can even be entered immediately after the design is completed, greatly shortening the time required for production finalization. Verification of Turbofan 9 as Turbofan 10 Zhang Zhenhuas fingers tapped the table gently and rhythmically: Factory 430 is supporting Factory 410. It doesnt sound good to talk about it, but it doesnt do any harm to us. Even if the design process needs to be modified frequently and the production finalization is delayed due to differences in the design process, it will still be much faster compared to the timetable of General Counsel Chang, compared with us working behind closed doors. ?These words are more like he is convincing himself and others in the 430 factory. "I agreed!" (End of this chapter) Chapter 182 The future of JH-7 Chapter 182 The future of JH-7 ?After such a long preparation, it was almost natural for Zhang Zhenhua to agree to the suggestion made by Chang Haonan. In that case, lets start discussing some specific technical issues. ?Chang Haonan sat back in his seat again. Having experienced later generations, he knows very well that technology research and development is a two-way process. Although there is definitely a problem with the comprador mentality that buying is worse than renting, but on the other hand, users have invested money and decision-makers have taken the pressure. If the R&D unit is unable to let them receive positive feedback for a long time, then others will have no regard for independent research and development. It is normal to hesitate about something. So whether it is the 430 factory or Chang Haonan, who is preparing to take part in the 973 project, they have to quickly come up with something short, flat and fast. It does mean that I am eager for quick success, but this is the rule of doing projects. This is also the rationality of the trade, industry and technology route. First do business, achieve a certain amount of primitive accumulation, and survive, and then develop new technologies and products, sell them, and find new profit growth points. ?Its just that some people are just doing it and they only focus on primitive accumulation and forget all the work and skills behind it. But Chang Haonan is obviously not such a person: "Abrasive flow machining is just the beginning of the Seiko Plan, but grinding has always been our shortcoming, so I think this technology should be able to solve your immediate needs, and at least produce some results. First, we can solve the vortex Save this fan 9 project. "So, Director Zhang, can you tell us in detail about the various problems encountered in the localization process? We will analyze and analyze which of them can be solved in a relatively short period of time. We will focus on the key problems first, which can also be considered as a report to the higher-level departments, and The aviation unit has some confidence. As for those that cannot be dealt with immediately, we can make a list first. The same problems may also be encountered in future turbofan 10 projects. We will prioritize them in the order of easier and then harder as the key research and development directions of the Seiko Plan. In addition to deep holes and thin tube workpieces, there are indeed many problems faced in processing. Zhang Zhenhuas complexion also relaxed slightly: "For example, the high-pressure turbine bearing of an engine uses a floating ring sealing device. When the bearing temperature rises during use, the oil remaining in the sealing ring will coke, causing the floating ring to get stuck, causing friction with the shaft body, and the sealing effect will decrease. Soon, the ground crew had to clean the structure almost after every flight, but the actual lifespan was still only about half of the expected, so the imported parts were consumed quickly. " "But the manufacturing process of this floating ring is very demanding. It took us almost two years to produce a qualified product, but now the production speed is also very low. The first batch of installed Sibei machines has just reached the intensive overhaul period, and the output It cant keep up with the consumption at all, and the troops are very dissatisfied. As he spoke, he pulled out one of the papers from the pile of documents he brought, pointed to an inconspicuous ring-shaped part on it, and said: "This is it." "In addition, there is a locking piece at the root of the high-pressure rotor blade of the fan of Spey MK202. Its function is similar to the two pins on the R15 engine. It is used to fix it with the tongue and groove. This is also a consumable part that is in great demand in the army. We ourselves Because the roughness of the manufactured locking plate is not up to standard, it is easy to change the natural vibration frequency of the blade. When the blade is close to the maximum speed, resonance occurs and damages the engine. As a result, many pilots do not dare to push the throttle when flying the overhauled Flying Leopard... " I mentioned more than ten items in a row, all of which are problems that have troubled 430 Factory for a long time. Imitation, especially when there is a lack of technical data, actually has many unique troubles. Especially when it comes to materials and processing techniques. This is not even simply a matter of technical ability. Even in countries with a higher level of materials science, it is difficult to achieve a 1:1 restoration based on the finished product in hand. The processing method is the same. ??The British only transferred technology and equipment, and did not send people to teach them step by step like Maozi did back then, so many areas that needed experience had to be explored bit by bit. Chang Haonan looked down at the pile of drawings spread out in front of him and quickly sorted out the priorities in his mind: "As for the floating rings, rotor lock plates and bearing **** you mentioned, they are all similar to the processing of pipelines and deep holes. Our new abrasive flow processing method can completely handle it, but it only needs to be replaced with new abrasive formulas and PLCs. Control procedures, you dont need to worry about this, you can send people to the 410 factory for further study. ?Zhang Zhenhua breathed a sigh of relief after hearing this answer. ??The problem that Chang Haonan said can be solved immediately is the most critical part. ?Dozens of JH-7s are in urgent need of wearing parts, and these aircraft are the absolute main force of the naval aviation force at the moment. ??Once a large-scale den is discovered, it will be a big deal that will break the sky. ?This is why the proposal to buy another batch of second-hand Spey MK202 will be considered by the above. ? Being able to meet the overhaul and maintenance needs of these aircraft now is a turnaround for Factory 430. ?However, he soon showed a worried look: "Chang Gong, if these parts are ground using your new process, the consumption of soft abrasives should be very large, right?" He still remembered the technical document he had seen before, which stated the use of abrasives. Lifespan ranges from 0.5-8 hours. ??When I watched the processing process on site during the day, it was true that waste abrasives continued to be discharged from the fixtures. Factory 410 even specially arranged a worker to replenish the consumed abrasives. Hmm...thats true. Chang Haonan naturally has no need to hide anything in this regard: The specific length of time it can be used depends on the material of the workpiece to be processed, but in short, it must be replaced frequently, otherwise the expected effect will not be achieved. Then the cost of this abrasive... Zhang Zhenhua stroked his hair a little embarrassedly: I see that there is silicon carbide in the abrasive formula. It seems to be quite valuable. I remember that our country still needs to import it. There is no way, the 430 factory is really tight in terms of money, and the turbofan 9 has been unable to be manufactured, while the turbojet 8 is only equipped on the H-6, and its usage is very small. It was then that Chang Haonan understood what the other party was worried about: "Director Zhang doesn''t have to worry about this. The silicon carbide that needs to be imported is electronic-grade semiconductor silicon carbide. The abrasive we use is the most common silicon carbide for coatings and construction. It can be made domestically. The purchase price is per ton. Its less than a thousand dollars. Is that so? Zhang Zhenhua, suddenly enlightened, was completely relieved. But, Director Zhang. ?Chang Haonan picked up a pencil and lightly tapped on one of the drawings: I have some personal thoughts about Turbofan 9. Please tell me! Zhang Zhenhua immediately opened the notebook in front of him This is Chang Haonans personal opinion. This is the personal thought of the person who transformed the Turbojet 14. ?Got to take notes quickly! The 603 Research Institute should be developing a deeply improved version of the JH-7, right? ?This matter should not be a secret within the aviation industry, but Chang Haonan still used a question. Yes, the current JH-7 is mainly used by the navy. The air force has invested a lot of money because the combat concept is more complex, hoping to obtain an improved model with better performance. ? Zhang Zhenhua nodded. The connection between Factory 430 and Institute 603 was quite close. Moreover, they were also the suppliers that provided power to Feibao, so they naturally knew this: However, the 603 Institute hopes to use fully digital design for this project. There is a shortage of talents in this area, so the progress is not very fast. He does not mean that. ?Yao Mengna, who had been sitting in the corner without speaking, suddenly lit up as if she had thought of something. ?But no one noticed her thoughts at this time. Chang Haonan naturally knew what the JH-7A was about, so he continued almost without thinking: The Air Force has higher requirements for ultra-low-altitude penetration in complex terrain. Although the Flying Leopard is a twin-engine aircraft, when flying at ultra-low altitude, even if only one engine stops, it is still easy to cause irreparable accidents. In this case, why not take this opportunity to completely solve some of the problems you just mentioned, which can also be regarded as eliminating some hidden dangers in flight safety. ??Although generally speaking, SPEI MK202 has little potential for comprehensive optimization, we still cannot ignore a seemingly small defect that directly affects reliability and lifespan. ?Moreover, it is not troublesome to modify them, and they will not even affect the whole body. In the previous life, many JH-7 aircraft malfunctioned at ultra-low altitudes, and the performance of the second-generation ejection seats they equipped was poor, which ultimately led to multiple Category 1 flight accidents. Like the Yun-8 aircraft with ice on its wings, it is also one of the greatest surprises in the history of the aviation industry. The model of Turbofan 9 was originally gradually improved through accidents. (End of this chapter) Chapter 183 China does not agree to the acquisition Chapter 183 China does not agree to the acquisition The discussion, which was originally planned to be only about an hour, lasted until late at night. "The sealing device of the high-pressure turbine bearing can be changed from a floating ring type to a grate-tooth type. Although the theoretical sealing effect will be worse, it will not be affected by coking, and will not cause oil leakage due to friction with the bearing. risk." The method of fixing by tenon pieces is not very strong after all. You can consider designing a vibration damping block at the root of the blade to reduce vibration stress ?Chang Haonan combined the memories before rebirth, as well as the knowledge and experience after rebirth, and proposed many detailed modification plans for Sibei MK202. Zhang Zhenhua naturally recorded them one by one. Factory 430 was originally an enterprise mainly engaged in manufacturing, and the R&D department has always been in a dispensable state. It is only in recent years that it has begun to recruit people and build a team, which can be used to improve the turbofan 9 Gain some experience in the process. While the Seiko plan continues to advance in an orderly manner. Across the ocean, Washington, D.C. In an office in the Herbert Hoover Building, 1401 Constitution Avenue. ? Commerce Secretary Michael Kantor is sitting behind his desk, holding a several-page briefing in one hand and an unlit cigar in the other. He has read the contents of the briefing over and over three times. You two, I think your plan may encounter some unexpected resistance. ?? Kanter raised his head and looked at the two people sitting on the sofa in the reception area opposite. Harry Stonecipher, current CEO of McDonnell Douglas. ?Phil Condit, current CEO of Boeing. ?Two people stomping their feet together can make the global aviation manufacturing industry tremble. "out of expectation?" ?Stonecipher crossed his legs nonchalantly, obviously not caring too much about Kanter''s position: "Is there anyone in the two houses of Congress and the Pentagon who will raise objections? This matter is good for them." ? It seems to be heard from his tone that the CEO of McDonnell Douglas is not dissatisfied with the merger of his company, but is actually a little... Cant wait. In fact, Boeing''s merger with McDonnell Douglas can be said to be a decision jointly promoted by the two companies, or the management of both parties led by Condit and Stonecipher. In addition to unifying the aviation manufacturing industry in North America and enhancing competitive advantages, another important reason is that it can quickly increase the stock price. ?Just half a month after they announced the merger news, Boeing''s stock has soared by more than 10% despite no operations. McDonnell Douglas, or in other words, McDonnell Douglas''s executives, did not suffer. ?According to the agreement between the two companies, after the merger is completed, 1/3 of the board seats of the new company will be reserved for the management of the original McDonnell Douglas Company, and Stonecipher himself will serve as the general manager. In addition, when Condit retires in the future, he has a high probability of becoming Boeing''s next CEO. Both parties were very happy. ?Stonecipher, who personally benefited the most from it, is naturally dissatisfied when he suddenly learns that the merger process may be frustrated. Not from home, Harry. Kanter put down the documents in his hands, took out a cigar from the drawer, and patiently trimmed the cigar in front of him while saying: The European Commission has made it clear that it opposes the merger of your two companies. They believe that it will affect fair competition in the EU business aircraft market. "But it was part of the plan, nothing to be surprised about, Kanter." Condit cleared his throat and said: "As we have said before, the Pentagon and the Ministry of Justice will stand by our side and put pressure on the European Commission. In the worst case scenario, we can also use Delta Air Lines and Continental Airlines to We will make some concessions in terms of our exclusive supply rights. Anyway, after the merger, we will quickly abandon the McDonnell Douglas product line. ? Stonecipher, who was sitting next to him, didnt react much to the fact that his companys product line was abandoned. As a professional manager, he actually doesnt care about the company, as long as he maximizes his own interests. But now the Europeans have an extra ally. While speaking, Kanter burned the cigar with pine wood chips, put it in his mouth and took a deep breath. The Chinese people will stand with them. Although there is no official statement yet, in many informal situations, they have shown their determination in this regard and will govern this merger in accordance with the Anti-Unfair Competition Law. "How can it be?" ? Stonecipher stood up suddenly: In recent years, we have invested in several consulting companies in China, specifically responsible for finding influential experts and asking them to provide research results that are in line with our interests. He had been preparing for this merger for a long time, and he did not expect such an unexpected event. Anyway, Harry, it happened. Kanter, who was smoking a cigar, also stood up, walked to Stonecipher, and patted him on the shoulder: We have to solve this problem. Condit, who had a sinister look on his face, tapped the armrest of the sofa rhythmically with one hand: Although Chinas aviation industry is still very backward, the potential of the civil aviation market is very great. If they are tied to Europe, it will be equivalent to handing over this market to Airbus, which is absolutely unacceptable. As the CEO of Boeing, although he does not quite believe that the Chinese will really completely crowd out Boeing and let Airbus dominate, he must also consider that even if the other side of the ocean only shows such a tendency, it will be enough for investors to have an interest in Boeing. My confidence has hit rock bottom. The ensuing stock price plunge was absolutely unbearable for him. ?At this time, Stonecipher also calmed down a little. After thinking for a moment, he realized that the other party still left a lot of room for maneuver: Since the Chinese people have not chosen the same public stance as the EU, it means that things are still turning around. They are not really planning to stop us, they just want to get more benefits from this process. Those who can reach the position of CEO of McDonnell Douglas naturally have enough brains and can quickly find a reasonable direction of speculation: I dont mind talking to them to see what their conditions are. Anyway, with the level of their aviation industry, Im afraid they wont be able to threaten us before the end of the next century. But I mind. ??Kant turned around, walked to the glass window of the office, looked at the white house in the distance, and continued after a while: "Europeans are fine, but if we negotiate with the Chinese on this matter, it means that we recognize that China is a force on an equal footing with America, and it means that our business operations are subject to Chinese laws. Restriction means we have to make concessions to a foreign country. No matter what the outcome is, as soon as the negotiations start, it means we have lost. What should we do? Should we put the merger on hold? ?? Stonecipher is not to be outdone. As a businessman, he doesn''t care about these illusory things. "Of course that''s impossible." Kanter waved his hand to signal the other party to calm down. ? Boeing''s merger with McDonnell Douglas is a consensus reached by all major forces in the United States. It is impossible for him as the Secretary of Commerce to stop it. But you must be prepared for the lengthening of the front line. It may take half a year or more to resolve this matter. (End of this chapter) Chapter 184 alienation plan Chapter 184: Divorce plan It depends on the patience of both our boards of directors, but as long as it doesnt delay for too long, I think it shouldnt be a big problem. Stonecipher sat back on the sofa again and looked at the back of the figure standing in front of the window: "But you seem to have a plan. Are you planning to sanction them again?" He has no hostility toward China, and of course he has no favorable impressions. As long as the goal can be achieved, he will do anything. For the Ministry of Commerce, economic sanctions are obviously the most direct and convenient way. "Of course not. In your eyes, is this the only way we can do it?" ??Kant turned back to look at the two CEOs of large companies angrily and amusedly, and asked in a slightly exaggerated tone. The two did not answer directly, but it was not difficult to see from their eyes that this was what they thought. Ahem Kanter, who felt a little embarrassed, coughed several times to change the subject: "What Phil just said is right. China''s market potential is very large, not only in the aviation industry, but also in other industries. And unlike Europe and Japan, their products are almost no threat to us, and they can only export some Cheap labor, its a perfect market and we cant give it up. "The confidence of China and Europe to confront us on this matter lies in the strong complementarity between the two. China needs advanced aircraft produced by Airbus, and Airbus also needs to quickly occupy market share. Therefore, we have to do The purpose is not to exert direct pressure, but to undermine the relationship between China and Europe. Actually, Kanter has another reason that he didnt mention. That is, since mid-1996, the White House began to gradually change its attitude towards China''s accession to the WTO, from the previous strong obstruction to conditional support. On the one hand, this is because major American companies, especially the emerging high-tech companies behind the Donkey Party that have developed with the Internet boom, hope to get a share of the rapidly developing Chinese economy. There have been several scandals in recent years, such as the Whitewater Incident. The president himself hopes to make China''s entry into the WTO an important political achievement in his second term. Kanter is keenly aware of this trend, so he is unwilling to have too large a conflict with the other party in the commercial field. But Michael, since the end of the Cold War, Europe has lost the threat from the other side of the Iron Curtain and has become less obedient, especially their businesses that relied on our assistance to recover. Condit''s tone contained a bit of dissatisfaction. After all, without the Marshall Plan, Europe would still be in ruins until now. Where would there be so many rivals that could compete with him: We can see the potential of the Chinese market, and Europeans can naturally see it too. If you want to drive a wedge between them, it may not be that easy. "Of course we can''t expect to start from the commercial level. Those European companies are probably dreaming that this matter will make a bigger fuss." Kanter, who sat back on the office chair, shook his head and put out the half-burned cigar: But thanks to the existence of NATO, we have some more direct ways to influence them. Can the Pentagon agree to repeat what happened at the beginning of last year? ?? Stonecipher showed an expression of disbelief. Although China undoubtedly suffered a loss in that incident, the United States was actually under great pressure and it was simply unfeasible to do it again in a short period of time. Why us? ??Kante showed a somewhat playful smile: The year is 1997, Harry, and its been a very interesting year. "Although European companies no longer care about this, I think there must be some London aristocrats who are still living in the dream of an empire where the sun never sets, and want to do something at this point in time to satisfy their ridiculous of self-esteem. ?It took the other two people a few seconds to realize what Kanter was talking about: "That''s it? No other actions?" ????Obviously, they are not very optimistic about this plan. As long as the Chinese people can suffer a humiliating loss, thats enough. ? Kanter looked confident: "You are not the only ones who have arranged consulting companies and foundations in China. We also have them, and the Pentagon also has them. At that time, we can arrange some experts with sufficient weight to focus on inciting their national sentiment through the media and set off a wave of anti-British and anti-European sentiments. , at this time, you can ask those who have benefited from you to propose reducing cooperation with Airbus. They had no choice. A set of serial schemes made Stonecipher and Condit fall into deep thought at the same time. ?This plan is to trick others into taking advantage of the fire, and at least there is no risk to them. ??If it succeeds, it will be equivalent to weakening the bargaining chips of both Europe and China at the same time. Even if it does not succeed, it will be nothing more than a waste of a few months at most, and then we can consider negotiations. The merger and acquisition process of two very large companies is originally calculated in years, and this time can still be delayed. But there is another point that worries them. That sounds reasonable, but Michael, theres a question that Im wondering if youve ever thought about. ?Condit showed a somewhat strange expression: Fifteen years ago, the British were almost defeated by the Argentines in the South Atlantic. Are you sure they still have enough strength to threaten the Chinese? All your assumptions are based on the fact that the Chinese people will suffer, but if it is the British who are embarrassed in the end, I dont think the EU will suspend cooperation with China because of this. Stonecipher, sitting on the adjacent sofa, also agreed: "Not to mention the EU, even British companies will probably not be affected. Companies such as Rolls-Royce, Marconi, Unilever and Rio Tinto have grown very rapidly in China in recent years. Their business in China has grown very rapidly. I wont lose the opportunity to make money just because of this. No, no, no, you misunderstood what I meant. ??Kante waved his hand and then explained: I dont want the British to start a war like they did back then. What I want is a successful provocation that can become a trigger to destroy the relationship between them. This is enough. "for example?" For example, in the South China Sea, where the Chinese navy and air force cannot reach, we conducted several exercises with neighboring countries. The huge office fell into silence. The two CEOs looked at each other and exchanged their opinions in a low voice. Well, your plan is worth a try. But the patience of the board of directors and investors will not be unlimited. If we cannot see persuasive changes within half a year, then we will consider solving the problem through negotiations. (End of this chapter) Chapter 185 Batch 00 J-8C, delivered to the troops Chapter 185 Batch 00 J-8C, delivered to the troops On the other side, after removing the remelting layer on the inner wall of the air film hole and solving the biggest hidden danger of unstable turbine blade operation, the two models of turbojet 14 have finally successfully entered the mass production stage. ? Similar to Chang Haonans previous speculation, after the replacement of newly produced engines, the problem that the inner pylon cannot launch the PL8 and PL11 air-to-air missiles in a guide rail manner has also been solved. The J-8Cs of batch 00 were also delivered to the troops for trial in the first week of 1997 before the official start of aviation training. For a new model, it cannot be considered a success at this time. It is a bit like the tasting process when buying fruits at the market. Only after the user is satisfied will the actual batch order be placed. ??If we leave it to Western countries, at this stage, we can already beat gongs and drums to promote it. ??Anyway, people and investors cant figure out the difference between the stages of delivery, service, and formation of combat effectiveness. It looks awesome and can make the stock price rise. However, here in China, on the one hand, our tradition is still relatively low-key. On the other hand, we have to admit that in the past few decades, there are generally more problems discovered during the military trial process, and there is even a lot of rework and even redesign. . Although after entering the 1990s, with the continuous improvement of technology and management level, the vicious quality problems or design defects that would lead to the return of troops have gradually decreased, both parties A and B will still tacitly avoid opening champagne at halftime. After all, China''s military industry system has no pressure on stock prices, so it is not too late to celebrate when it is officially put into service. So for this actually significant delivery, in the end, only a small celebration ceremony was held at the entrance of the final assembly workshop of Factory 112. ?Of course, no matter how small the scale, Chang Haonan must be among those invited. The J-8C has been able to reach this point so quickly and smoothly, not entirely, but at least largely due to its incredible work efficiency in the past six months or so. Without such a person present, no one else would dare to use their chopsticks. ?Amid the cheers of the crowd, a brand-new fighter jet with a big red flower hanging on its nose was pulled out of the assembly workshop. Followed by the second and third planes... Before his rebirth, Chang Haonan complained countless times that this decoration was really rubbish. Its just that when he actually stood at the scene, he unexpectedly found it a bit pleasing to the eye. ?This kind of day should be a little more festive. A total of 6 J-8Cs were quickly arranged in a semicircle around the delivery site. He Gong, I remember that I said before that only 4 aircraft would be delivered this time. Why are there two more aircraft? Chang Haonan applauded and turned his head to ask He Ming, the deputy chief engineer of the 112 Factory next to him. The two had met once before and chatted about many details about the introduction of the No. 11 Project technology. ? During this period, he has been immersed in the study of soft abrasives and has not paid much attention to the final assembly of the aircraft. There are two more that were delivered to the naval aviation force and were assigned to production tasks last month. I estimate that the J-8C may be equipped with both the navy and the air force this time. After He Ming''s reminder, Chang Haonan noticed that the two planes furthest away from him were painted differently from the other four, and there were several Party A representatives who were entering the venue wearing navy blue double-breasted jackets. Navy winter dress. HNA can actually spend so much money? Its not that Chang Haonan looks down on naval aviation. You must know that 1997 was the lowest point in the ratio of military expenditure to GDP since the founding of the Peoples Republic of China. The total was less than 82 billion yuan, and even less was allocated to each service. ?Especially for the Navy, which burns the most money, and buying a ship often costs ten figures. It is not enough, and one penny can be broken into two halves. The shore-based naval aviation is originally in a relatively embarrassing position. In terms of actual functions, it is not much different from its counterparts in the air force. The greatest value is to retain the establishment and leave a thought for the aircraft carrier dream that seems to be relatively illusory at present. Therefore, What''s more, my grandma doesn''t love me and my uncle doesn''t love me. In most cases, I can only equip some older models. ?Like this, new aircraft can be used directly after delivery. Except for the JH-7 specially prepared for them, it has basically never happened again. It may also be affected by what happened at the beginning of last year. The army has a strong demand for new aircraft. He Ming speculated: "In addition, the J-8C is, after all, a model completely designed and manufactured by us. It can be compatible with the logistics, maintenance and training systems of older models to a certain extent. Both pilots and ground staff can switch over quickly, and its combat effectiveness is better than that of traditional second-generation aircraft. Its a lot better. Although the aircraft itself is a bit more expensive, the subsequent use cost is actually not high. After the speech at the ceremony, Chang Haonan met Liang Zhuoping again. The last time the two met, it was in the small conference room of Beijing Hang University. In order to determine whether Chang Haonan is eligible to join the 83rd Project. ?That was the first time in his two lifetimes that he faced the head of the aviation industry system alone. To say that I was not nervous at all at that time would be absolutely false. ?But now, the situation is completely different. On the one hand, Chang Haonan has completely proven his ability in the 83rd Project. ?On the other hand... Ding Gaoheng from the Science and Technology Commission is so taller than you that I dont know where he is. I chatted and laughed with him... Ahem In short, in the past six months or so, Chang Haonan has transformed not only his ability, but also his mentality. Comrade Xiao Chang, thank you for your hard work. ?Liang Zhuoping shook Chang Haonan''s hand tightly: Honestly, when I approved you to join the Eighth-Third Project last year, I never thought you could play such a big role. Considering your contribution to the design of multiple models during this period, as well as your contribution to the overall development of my countrys aviation industry, the head office has decided to make an exception and award you an award! ?When Du Yishan mentioned the name Chang Haonan for the first time, he said that after he graduates with his Ph.D., Liang Zhuoping may not be able to hire him. At that time, the latter didn''t quite believe it, and just regarded it as the other party''s compliment to his student. ?However, now it seems that there is no flattery, and it is obviously a lot more modest - ?According to this situation, there is no need to wait until you graduate with a doctorate. After you graduate with a bachelor''s degree, the various systems under the Science and Technology Commission will compete to grab people... Liang Zhuoping has heard that the Shipbuilding Industry Corporation and the Aerospace Corporation are considering long-term cooperation with Beijing Hang University. Although generally speaking, the party A who contributes money in a cooperative relationship is the father, this cannot be generalized. ?If Party B like Chang Haonan is willing to do one more project for you in the future, it will bring great benefits. ?Just like the J-8C, MA-60 and Yun-8J. ?So Liang Zhuoping will never let go easily. Fortunately, he was on a first-come-first-served basis. Although the other party was not an employee of the aviation industry system and could not participate in the assessment and evaluation according to the normal process, he was still working on projects in the aviation industry after all, so he was determined to seize the opportunity at the end of the year. Get some support. ?But now Chang Haonan can treat this kind of thing calmly. After all, its just a commendation. So I just thanked him very warmly on the surface. This scene happened to be seen by Yang Fenghao who was following not far away. He felt that Liang Zhuoping was a bit stingy in handling this matter. (End of this chapter) Chapter 186 naval aviation Chapter 186 Naval Aviation ?After a brief exchange of greetings with Liang Zhuoping, Chang Haonan found an excuse to get away and chatted with representatives of the navy and air force respectively. You want to talk together? That is obviously impossible. Although it is an extremely rare exception like in this book that the army and navy have to differ in the direction of tightening the screws, but as the saying goes, there is no first in literature and no second in military affairs. In places like the army, there will always be competition. Therefore, there will be a bit of tension between colleagues in different military services. This is true for special warfare, aviation, and even the cooking squad. ??The air force''s pick-up unit is the Third Regiment of the First Aviation Division. ??This unit was equipped with J-8E in the past, and it is stationed close to Shengjing. It is not surprising that it was selected as a trial unit for the 00th batch of new aircraft. The pilot leading the team is named Zheng Liangqun. He had actually served as the deputy division commander of the 1st Division two years ago. This time he returned to the old unit to serve as the commander-in-chief of the entire replacement task specifically for this batch of new aircraft. The navy''s pick-up unit still surprised Chang Haonan. The 25th Regiment of the 9th HNA Division. When he heard this number, Chang Haonan was stunned for a moment. It turned out to be you. almost came out of the mouth. ?However, his subconscious words obviously caused some ambiguity: ??The two pilots responsible for picking up the plane looked at each other awkwardly: Comrade designers, please rest assured, we promise to maintain the aircraft at all costs! "Well" ?This reaction made Chang Haonan feel confused for a moment. ?But then he reacted. Just a few months ago, during a joint training exercise between this unit and another brother unit, two J-8Bs collided and crashed due to weather conditions. ?The other person probably thought he was talking about this just now. ?This misunderstanding naturally needs to be explained, but the real reason cannot be told ?That thing hasnt happened yet. Furthermore, Chang Haonan would not let it happen. Finally, it took him half a second to find another reasonable explanation: I believe that the pilots will care for the aircraft as much as they care for their own lives, but I didnt expect that your division farthest from Shengjing would come to pick it up. The 25th Regiment is stationed at Qiongzhou Lingshui Airport. Not only is the environment high in salt and humidity harsh, but the distance from the manufacturing plant is almost the furthest in the country. During the trial process of new aircraft models, the troops will need technical support from manufacturers to some extent, and it may also involve the transportation of some urgent spare parts. However, the transportation and logistics of this era are far less developed than later generations, so even if it is not entirely based on the principle of proximity, it is generally not applicable. Troops that are too far apart will be selected. ?These words really made the two pilots relax again: There is no way. Our regiment is the best at flying J-8s among the naval aviation, and there is an urgent need for aircraft with longer range in the South China Sea. Are you more concerned about the range of this plane? ?Chang Haonan was a little surprised. In fact, thanks to the redesigned turbojet 14A engine with lower fuel consumption and the addition of more than 100 kilograms of fuel for trimming, the J-8C in the final design state can reach 3,000 with three auxiliary fuel tanks. The maximum range is about kilometers. Although this number is still far from the 4,000 kilometers of the Su-27SK, the J-8C also has the ability to receive refueling in the air that the latter does not have. After a single in-flight refueling, the range can be extended to the same 4,000 kilometers. For China Aviation Industry, which has only produced short-legged aircraft in the past, this is actually a huge progress. Its just that the Peoples Liberation Armys current aerial refueling capability can only be said to have solved the problem. The H-6 cannot even feed a J-8C at a slightly farther distance, and it has no experience in establishing an aerial refueling area. So in terms of range, The advantages are overshadowed by huge improvements in flight performance and airborne weapons systems. ? ? Several Air Force pilots just mentioned more about the amazing flight performance at the Zhuhai Air Show and the over-the-horizon combat capabilities of the new radar, officially named 1472, when paired with the Thunderbolt 11. "Of course, our main opponent is the Su-22M3 equipped by Annan. This kind of aircraft has average air combat performance, but their airport is closer. Many times we fly over and have to return after a short time. Comrades of the Surface Ship Force They have complained to us many times and they need strong air support to back them up." Thats it. Chang Haonan nodded clearly. As far as the situation in the South China Sea is concerned, it is difficult to solve the problem just by increasing the range of the aircraft stationed at Lingshui Airport. Even if it is equipped with the Su-27/30 or the future J-11, it will be difficult to cover the entire sea area, and long-term flights are difficult for the aircraft. Its also a challenge in terms of the pilots energy and stamina. ??It is still necessary to build island airports closer to the front, or carrier-based fixed-wing aviation on aircraft carriers. So he quickly changed the subject: Aside from range and flight performance? Are there any other issues that you think need to be resolved as soon as possible? As a party, collecting feedback is an important part. Most of the time, users dont actually know what they want, but they know what they dont want. "Um" ?One of the younger pilots hesitated for a moment, but finally answered: I thought maybe a new two-seater aircraft was needed. We have many pilots who have never experienced supersonic flight before entering the combat force, and the J-8 is a single-seat aircraft, so many things can only be taught on the ground and explored by oneself The JJ-7 was only officially equipped with troops in 1994. The production volume was not large, so it has not yet been rolled out in the pilot training process. On the other hand, Chang Haonan, who has experienced flying in a JJ-7, also knows that it is definitely not an excellent training aircraft. The instructor in the back seat has almost no forward vision. The subsonic flight performance is very poor and the supersonic flight range is short. They often land after not training many items. Moreover, the airborne weapon system is also behind the times and cannot carry out complex air battles. train There is also the bomb load, or the pylon. Another pilot also joined in: Seven pylons are too few, even Annans Su-22 has eight, and the space under the wings of the aircraft is very small, and even larger weapons cannot be hung... In short, Chang Haonan gained a lot from this day. First-hand feedback from pilots represents the most real pain points. ?These problems are definitely impossible to modify on the already designed J-8C, but they can be used as the focus of future work. ?In addition, after the handover ceremony, his work at Institute 601 will come to an end. ??, it is almost a month away from the Lunar New Year in early February. Although the school is on holiday, Chang Haonan does not plan to go home so early. It just so happens that Factory 410 has also shipped the two turbojet 14B machines needed for the J-7F prototype to Factory 132. So after thinking about it, he decided to get on a United Airlines Tu154 and head to Chengdu, ready to see what else he could do during the period before the year. (End of this chapter) Chapter 187 J-7, super evolved! (2-in-1) Chapter 187 J-7, super evolution! (2-in-1) On the plane, Chang Haonan, who finally had some free time, covered himself with a blanket and took a glass of juice from the flight attendant in military uniform. ?Yao Mengna went back to school directly and did not go to Chengdu with her Since it is a project, desk work such as year-end summary must be indispensable. With his current status, he definitely doesnt have to do these tasks himself. I can only do some hard work for Senior Sister. So Chang Haonan, who had nothing to do, was ready to summarize what he had gained during this period. Because of the smooth development of the Seiko Plan and the putting into use of abrasive flow processing equipment, Factory 112 and 601 were able to legitimately use a sum of 60,000 yuan from the project funds as a commission and reward him personally. ?In addition, before leaving, Yang Fenghata came to him specifically and said that the awards given by the head office were not enough to convince the public, and that he would continue to apply for honors in line with the latter''s contributions. ??Although Chang Haonan will not change his plans because of these external things, he has to admit that Yang Fenghao is obviously good at winning people''s hearts. After the August 3rd Project achieved phased results, the 112th Factory and the 601st Institute in Shengjing were not only engaged in Project 11th, a major project involving at least 3-4 sub-models, but they were also working on a stealth flying-wing drone. Human and machine conduct technical pre-research. This is a self-funded project. Compared with the J-7F, the funds are certainly much more generous, but considering its rather ambitious goals, it is not difficult to predict that it will face many difficulties. ??And if we can get the help of strong foreign aid, the progress of these two projects will obviously be accelerated a lot. Apart from material rewards and the trivial commendation, for Chang Haonan, what is more important is the system. ?Perhaps because the Seiko Project created too much noise, this time he directly received up to 125 scientific research points, as well as a large amount of experience points, especially in management: Research Points: 500 Theoretical level: LV2 (3500/10000) Engineering experience: LV2 (1000/10000) Management ability: LV2 (0/10000) Comprehensive ability: LV2 Projects in progress: 0 Projects that can be carried out: 2 After the theory, engineering and management levels are all upgraded to level 2, the comprehensive capability assessment of the system is also upgraded by one level. The obvious benefit is that now two projects can be carried out simultaneously. But Chang Haonan still remembers that when he was just reborn, he once thought with some mischievous thoughts about letting the system help design a J-20. The response received at the time was [the level of capability is insufficient and there are no available ideas for the project] In other words, in order to carry out a project, in addition to having a closed-loop and feasible idea, there are also requirements for the level of the system. Its just that his research has always been more down-to-earth, so he never saw the same prompt again. But as he gradually begins to get exposed to more advanced research content represented by third-generation aircraft, the improvement of comprehensive capabilities will obviously bring many benefits. A few hours later, Tu-154 landed on the runway of Chengdu Shuangliu Airport. Chang Haonan naturally has feelings for Sichuan Province, where he lived and worked for more than ten years before his rebirth. But he has actually not been to Rongcheng that much. Instead, he has been to mountain cities that have not yet been upgraded to municipalities. Fortunately, the 611 Institute directly sent Lu Yuying to pick him up at the airport. ??When Chang Haonan was led by the other party and saw the car that looked almost identical to the BJ212 Jeep, except that the tail was slightly longer, he couldn''t help but sigh that there might be some kind of tacit understanding within the aviation industry system. Unexpectedly, after hearing his thoughts, Lu Yuying smiled and waved his hands: Comrade Xiao Chang, you may have made a mistake this time. This is not a BJ212. "oh?" ?Chang Haonans understanding of cars basically stops at a few well-known brands. But after all, the road to the 611 Institute is not close, so he really needs some topics to kill time, and it is not difficult to guess from the other party''s tone that this car may have come from a third-tier factory in the past. It was a period that he had never experienced but was quite interesting. I am interested in history, so I dont mind hearing an introduction related to it. ?Lu Yuying patted the bridge in front of her, turned back and explained to Chang Haonan: This car is called JC121A. It is produced locally in our Sichuan Province and is called Yema Bailu. It is a replica of BJ121. Many official cars in the province are of this model, or the better JC212. Local production...is it your 611 factory or 132 factory..." ?Chang Haonan tightened the coat wrapped around him as he spoke. ??This car, which looks to be quite old, is leaky when running. It has no heating equipment, so it can only rely on people to resist the humidity and coldness in the winter in Sichuan. ??He was certainly used to this kind of climate in his previous life, but this was the first time his body had spent the winter in the Yangtze River Basin, and he was still not used to it. Thats not the case. ?Seeing him like this, Lu Yuying took out a pair of gloves from nowhere and handed them over, motioning to Chang Haonan to put them on: The Yema Bailu was led by the Chengdu Auto Repair Factory and worked together with four automobile manufacturing and maintenance companies. However, Factory 132 produced some parts for them in the most difficult years. "Before the 1990s, the development momentum of light vehicle factories has always been good. Unfortunately, in recent years, good foreign cars have continued to come in, and joint ventures have been established to produce them. The prices have also become lower and lower. It has been difficult to sell such low-end brands. For Chang Haonan, this kind of thing is not new. After all, similar plots will continue to be played out in the next ten years. ?Furthermore, judging from his experience along the way, the quality of this Mustang and Egret car is indeed unflattering. For areas that do not directly affect national security, some things should be let go. China''s automobile industry must develop, but Chang Haonan''s own energy is limited and he cannot do everything himself. He can only rely on channels such as the Seiko Plan to spread the technological achievements of cutting-edge projects faster. As for who can benefit from this wave of technological dividends, it all depends on their own efforts and luck. After all, the fate of a factory must not only consider its own struggles... Chang Haonan and Lu Yuying chatted about various things about this car, Chengdu, and the aviation industry, and finally arrived at the 611 Institute before the sun went down. "Now the comrades in charge of Project No. 10 are following the final assembly of Prototype No. 01 in Factory 132. The place is a little deserted, but our J-7F project team is here, and we have arranged a simple reception for you, Comrade Xiao Chang. ceremony." Perhaps he was worried about being rejected, so the latter continued: In addition to our 611th Institute and 132nd Factory, there are other fraternal units involved in the project, especially comrades from several factories on the Zhucheng side. They all came here specially. "I also want to meet the comrades who built the city. It''s not easy for them." Chang Haonan nodded slightly: "But I still want to go to my residence first and pack my luggage." If you just look at the map, Zhucheng does not seem to be much more remote than Chengdu. However, due to a series of factors such as history and topography, the economic level of the former is much worse. The 648 and Guizhou are both products of third-tier construction. Compared with its brother units, the development of Fei (the merger of 130 Yunma Factory and 162 Shuangyang Factory) is naturally not as satisfactory. At present, we can only rely on the JJ-7 model to maintain the production line and research and development capabilities without interruption. ?Hence, when Lu Yuying proposed the export-oriented J-7 improved plan, the city builders chose to join in almost without hesitation. Considering that most of the future production capacity of Factory 132 will probably be placed on the production of J-10, Guifei Factory has a good chance of getting the production task of the new J-7 model, and Institute 648 can also use this project to train its team. ?In this most difficult moment for the military industry, only by finding a way to survive can we persevere until the day of dawn comes. No problem, Ill take you there right away. The conditions are definitely no worse than those at 601. ?Lu Yuying patted Chang Haonan on the shoulder, and then motioned to the driver to drive towards a side road. The dinner was held in the guest house of 611. The scale is not large, at least not as much as after the successful test launch of Thunderbolt 11. After all, it was a celebration. Not surprisingly, not long after the banquet started, after Lu Yuying introduced Chang Haonan to everyone, the topic gradually turned to aircraft design. Comrade Chang, we saw the turbojet 14B engine just shipped from Shengjing yesterday. Can you tell us about the difference between it and the old model in terms of inlet matching? The person who spoke was an engineer from Liyang Factory. He had met Chang Haonan before when he was doing high-altitude platform testing at 624. As one of the participants and investors in the research and development of the J-7F, Liyang originally hoped to use its own turbojet 13FII engine as power. But after seeing the turbojet 14 ground test with their own eyes, they immediately realized that it was a new model that could make a leap in aircraft performance. ??However, recognizing the reality clearly is a matter of recognizing the reality clearly, and there is still a point of being unwilling to do so. Mainly in the transonic range, the overflow resistance of the inlet. ?Chang Haonan put down the cup in his hand and explained to the other party: In order to improve the overall performance of the engine, the final turbojet 14 engine has a boost ratio of 18.6, which is basically between a typical turbojet of less than 15 and a typical turbofan engine of greater than 20. "Since the main installation target of the turbojet 14 was initially determined to be the J-8C with a high-altitude and high-speed orientation, the jet velocity was increased by increasing the temperature in front of the turbine and redesigning the afterburner to maintain its operating condition of more than twice the speed of sound. The performance is at the cost of using a lot of new materials, but the lifespan is almost no improvement compared to the old model. "However, the designed maximum speed of the J-7F aircraft is only about Mach 2.1. It is assumed that under combat conditions, the speed is mostly in the subsonic to transonic range. An excessively high jet speed is meaningless for our model, so I When designing the turbojet 14B, 606 was specifically required to reduce the temperature in front of the turbine and the jet velocity in exchange for longer life, higher reliability and lower fuel consumption. "But there was a problem. The original inlet was designed by me based on the flow characteristics of the turbojet 13F engine. It was too big for the turbojet 14B. The air flow captured by the inlet lip was even larger than The sum of the flow rate and the exhaust volume required by the engine will push out the positive shock wave at the lip, causing the intake duct to work in a subcritical state for a long time, resulting in a large overflow resistance. " I dont know if I explained it clearly? ?His explanation was concise and concise. In just a few sentences, he explained the parts that need to be optimized in the next step of the J-7F. In fact, it is not impossible for 611 Institute to complete this work alone, but it requires a little exploration of the appropriate starting and matching sweet spots, which is far less efficient than Chang Haonan, who understands the air intake characteristics of the aircraft and engine at the same time. ??After all, we still have to rush to the first flight node. ??The engineer who just asked the question didn''t want to embarrass Chang Haonan, so he simply nodded, then raised his cup and gestured to Chang Haonan. In this case, Comrade Chang Another young engineer from the 611 Institute spoke up. Just call me a regular worker. Among people of the same generation, Chang Haonan is still more accustomed to this title. Okay, then Chang Gong, since the key to the inability to match the old intake duct and the engine is that the intake air flow is too large, can we directly design a few bleed holes to increase the bleed volume of the intake duct? No, of course not. After hearing this question, Chang Haonan shook his head solemnly, then looked around and found a blackboard in the corner of the scene. He walked straight over, picked up the chalk and drew an abstract entry on it. Airway diagram. The reason why he paid so much attention to it was because he remembered that his previous research on the mandibular airway had suffered a lot of setbacks in this place. "In the subsonic state, there is no problem with the method you just said, but in the transonic range, the normal shock wave of the inlet wave system is located outside the inlet lip, between the free flow tube boundary and the wedge plate surface , cant reach the position of the air vent at all. It would not be a big problem if it were an adjustable air inlet like the J-8C, but the shape of the air inlet of the J-7F is fixed and there is no way to adjust it according to different speeds. The entire air intake structure design must be optimized. ?Chang Haonan put down the chalk and turned around. What he saw was a group of people either bowing their heads in deep thought or looking suddenly enlightened. By the end of the banquet, it had already begun to look like a technical seminar. In order to make the atmosphere less bad, Chang Haonan put on a more relaxed expression and tone: Besides, dont you think the previous design was a bit too ugly? Its like...a toad with a big mouth. After switching to the new design scheme, although the overall appearance is still the same,... at least the mouth is not as big as it is now, and it needs to be coordinated a lot. ?This description immediately enlivened the atmosphere at the scene, and some people laughed involuntarily after hearing it. In fact, the design of the mandibular air inlet is indeed inferior in aesthetics, but the J-7F and the US military''s F8 and A7 are all fine. ?The real breakthrough in aesthetics is the X32 fighter jet, which has not yet been released, which is a technology demonstrator launched by Boeing to bid for the JSF project. ??Toad''s mouth is also used to describe this model. The X32 ultimately lost to Lockheed Martin''s X35. One of the very important factors was that pilots from the three services expressed their unwillingness to fly such an ugly aircraft into the sky, which would affect morale too much. ??Lu Yuying also raised his glass very appropriately at this time: Then I wish our new model can evolve successfully with the help of Comrade Chang Haonan! Evolution successful! Everyone present echoed in agreement. (End of this chapter) Chapter 188 MiG-21 modification that even mom can’t recognize (2-in-1) Chapter 188 MiG-21 modification that even mom cant recognize (two-in-one) Since I had to work the next day, the reception banquet did not last until too late, and I drank very restrainedly. ?Most people still maintained a very clear consciousness after the show, such as Sun Huizhong, deputy chief designer of 648 Institute, who flew from Zhucheng to Chengcheng just yesterday afternoon. ??He didn''t speak the whole time, just quietly listening to Chang Haonan''s explanations to other people''s questions. ??Although he had heard about this young genius from many channels, Sun Huizhong felt that he had to see it with his own eyes. So now, the only chief engineer of the 648 Institute only has admiration in his heart. Permanent worker! After leaving the guest house, Sun Huizhong called Chang Haonan from behind and followed him quickly: ?Chang Haonan turned around and saw a man with half-white hair standing behind him. "May I ask you are" ?Although it sounds like he has done a lot, it has only been half a year since he traveled across time, and he didnt have time to interact with too many people. As an ordinary military engineer in his previous life, he also had limited connections, so except for a few well-known big names, most of the faces were unfamiliar. Sun Huizhong, who came from City Construction 648. The two shook hands under the dim street lamp. ?After taking a closer look, Chang Haonan discovered that the other person did not seem to be particularly old, and was probably in his early thirties. The reason why he grew old early was probably due to congenital reasons or too much pressure. Chang Gong, I would like to ask some more questions related to hair matching. After all, it was already very late, and Sun Huizhong was staying in the guest house, which was not in the same direction as the dormitory area, so he didn''t make any detours and directly explained his purpose. ?Chang Haonan would naturally not refuse this kind of thing: "Please say." We want to develop a two-seat aircraft based on the J-7F. Sun Huizhong does not shy away from the idea of ??borrowing ideas from brother units. After all, the design team of Institute 648 has only three digits in total, and its experience and level are indescribable. In this case, there is no shame in choosing to copy assignments: "But I heard from comrades here in Rongcheng that the J-7F''s air inlet and front fuselage are integrated designs completed by you. Modifications to the fuselage will seriously affect the air intake efficiency, so I would like to ask, what do you think? How feasible is this plan? "It is indeed the case. The high air intake efficiency and stability of the J-7F are based on the primary compression of the incoming flow by the nose part. If you want to convert it to a two-seater, you will inevitably have to perform some modifications to the front fuselage. A major change would almost require a complete redesign. ?Converting a single-seater to a two-seater may seem simple, but the workload is not small. For some relatively small aircraft, one more pilot will have a significant impact, and the more sophisticated the aircraft''s aerodynamic design, the smaller the operating space left for such changes. The J-7F has occupied both sides, which is particularly troublesome. So Chang Haonan thought about it for a while and quickly gave his opinion, even though it was a basin of cold water: "When I designed this model, I just wanted to give the J-7 a true beyond-visual-range combat capability. I didn''t think about letting it take on more complex functions, so I didn''t leave much margin. If it were changed to a two-seater I personally dont like it. ?At that time, he had just traveled through time, and he just wanted to quickly create a short and fast project to attract the teacher''s attention, so that he could quickly participate in a specific model project. In fact, Chang Haonan still hasn''t figured out how he crossed the level of Professor Liu Hongbo and directly attracted Du Yishan''s attention. In short, the final effect was much better than expected. So thats what it is ?Sun Huizhong, who was standing opposite, lowered his head slightly and showed a somewhat regretful expression: "We originally planned to further improve the J-7, and are currently doing pre-research work on wing selection and air inlet matching. After coming into contact with the J-7F project, we originally thought we could have a better reference, but unfortunately When the other party said this, Chang Haonan suddenly remembered the conversation he had with the two pilots of the 25th Hainan Airlines Regiment at the J-8C delivery ceremony. They said that the army currently lacks a useful high-level training aircraft. To solve this problem, designing a new advanced trainer aircraft from scratch is of course the best way, but currently there is no such solution in terms of funding or technology. If nothing else, we cant get two small-thrust or one medium-thrust turbofan engines. ?Besides, there are not that many abundant funds at the moment. ??However, it is still feasible to use the redundant digital fly-by-wire technology of the J-8IIACT, combined with the medium-thrust, excellent-performance turbojet 14, to develop a model based on the J-7. The final product of this idea in later generations was Coach 9, which happened to be the product of 648 Institute. Chang Haonan is fully capable of making it born in advance, and... Become more perfect! So he changed the subject and said to Sun Huizhong, who was already preparing to say goodbye: Since you have such an idea, you might as well be bolder. Hearing this sentence, the latter''s eyes suddenly lit up, and he raised his head and looked at Chang Haonan: You also think we need a new advanced trainer aircraft? ??Although the plan based on the J-7F technology has been rejected, Sun Huizhong is very happy to get approval for the idea of ????this training aircraft. You must know that the conversion rate of pre-research results is actually very low. Sometimes out of 10 pre-research plans, only two or three will eventually become formal projects that can be carried out, and even fewer may achieve positive results in the end. The two pre-research reports they submitted previously were rejected due to lack of depth. Therefore, Institute 648 also has internal concerns about the plan for this new advanced trainer aircraft ? ?Bite the bullet and continue will require more investment, and no one dares to guarantee that the army will definitely want it. This is inherently a risk for them with small families and small businesses. ? Even Sun Huizhong, who originally proposed the idea, didnt have much confidence. You must know that although he holds the title of deputy chief designer of the 648 Institute, this is entirely because there is really no talent in the institute, so he is replaced by a person who is less than 30 years old and has not led any model design. You are young and have no successful experience, so you will naturally lack confidence. So when he heard Chang Haonan express his support, Sun Huizhong was quite excited. Although the former is younger, judging from what happened at the dinner just now, he definitely has real talent and knowledge, and he played a very important role in the 83rd Project. His stance is definitely weighty. Of course, JJ7 was created by you, and you should be very aware of the flaws. ?Chang Haonan nodded, not showing any mercy because the person in front of him came from No. 648: "The low-speed performance and visibility from the back seat are so poor. During takeoff and landing, instructors even need to make their own periscopes to observe the situation ahead, and the potential is not enough. It is barely enough to train pilots of the J-7 and the old J-8, but our air force is making great strides. Its entering the third-generation machine era, so this model definitely wont be able to take the lead for a long time. In fact, the JJ-7 model was supposed to only play a transitional role, and it would be gradually replaced with new trainer aircraft after entering the new century. But like many other pieces of equipment in this era, it gradually became the main piece of equipment. Due to various reasons, the planned new training aircraft never arrived. In the end, the JJ-7, as an essentially basic second-generation aircraft, was actually produced until 2017... Alas...thats so right. ?Sun Huizhong sighed softly: With your words, we can feel more at ease as we continue to carry out preliminary research. You just said that you are currently working on wing selection and inlet matching. What is the specific progress? Coach 9 is not a star model. Chang Haonan only knows that it was not officially put into service until 2011 in the original timeline, and does not know much about the development process. "At present, it has been initially determined to use a double delta wing similar to that of the J-7E. As for the air inlet... it has not yet been decided. I originally wanted to refer to the mandibular air inlet, but you just said that it is not feasible, so... maybe we need to think about it again. think." ? Sun Huizhong was a little embarrassed when it came to this. After all, it sounded like this aircraft was borrowing models from its brother units from head to toe... Chang Haonan didn''t care about this. What he was thinking about now was how to tell the other party the design plan in his mind. Its not just about letting 648 institutes simply copy the answers. It is better to teach them to fish than to teach them to fish. It is better to let them gain experience from it. ?Besides, he only has a preliminary concept of Coach 9 now. More detailed information can only be obtained through calculation. In short, there is definitely no way to come up with the design plan tonight. So Chang Haonan considered the sentence: "Actually, when I was designing the J-7F, I also considered another option. However, compared to the J-7, the changes were too big and there was no way to directly upgrade from the old aircraft, so the design work was only carried out a little. If you are so willing, after I finish processing the changes to match the new engine of the J-7F, I can work with you to improve the plan... This was a complete surprise to Sun Huizhong. So before Chang Haonan finished speaking, he quickly expressed his agreement: Of course, I can apply to the institute to transfer some key members from the design team. ? Sun Huizhong never thought about letting the other party go to the 648 Institute from the beginning. On the one hand, anyone with a discerning eye can see that Chang Haonan''s visit to 611 this time is just a side trip to engage in the J-7F, and participating in the No. 10 Project is probably a serious matter. This new training aircraft is not an important project, and it is impossible to take up too much time and energy on it. . On the other hand, among the cities corresponding to the major designs of the aviation industry, Shengjing, Haojing and Rongcheng are definitely the best. Ice City, Porcelain Capital and Hongdu are also okay, but the geographical conditions for building the city are really good. It''s worse. Thats it for now, lets talk about it after the matter on 7F is over. Chang Haonan nodded as he spoke: In addition, the people who are transferred must at least master some basics of digital design, so the efficiency will be much higher. No problem, Ill call tomorrow. ?At this time, Sun Huizhong already had excitement on his face: Thank you so much, Chang Gong! The next day, Chang Haonan started working non-stop. Random events, in the first half year, the team led by Lu Yuying was not idle, and had almost completed the design of parts other than the air intake and the nose. For him, he has actually gone through the J-7F design process once, and now replacing a new engine is nothing more than taking the entire project team to go through the process again. At the beginning, three undergraduate students were able to complete the preliminary design within three weeks, and now it is no longer a problem. ?Furthermore, the equipment level of the 611 computing center is no worse than that of Shengjing. In short, with the cooperation of Chang Haonan and the project team, the complete design plan of the J-7F was successfully produced after half a month. Compared with the original version of the design, in addition to narrowing and shortening the air inlet to make the aircraft look more coordinated, the cockpit windshield was also changed to an arc type based on Yao Mengna''s experience when improving the J-8C, which greatly improved It improves the pilot''s field of vision and adds a set of 140-liter fuel tanks at the root of the vertical fin, which improves the range even more than nothing... As for the remaining work, naturally it was to send the drawings to Factory 132 and ask them to build two prototypes. A J-7F1 upgraded from the J-7B, and a newly manufactured J-7F2. ?However, it is now the end of January. No matter how efficient it is, the first flight will have to wait until after the year. As for the rest of the year, it will naturally be left to Sun Huizhong and 648 Institute. They have been waiting here in Chengdu for half a month, and have also participated in the improvement work of the J-7F, which can be regarded as accumulating some experience. Computing center, inside the server room. ?Sun Huizhong placed a pile of information on the table in front of him: Chang Gong, this is the main result of our current pre-research, and its all here. ?Several comrades from Institute 648 gathered around the square table and looked hopefully at Chang Haonan, who was focusing on the drawing in front of him. In the process of improving the J-7F, they have seen what work efficiency is. So now, I basically have unlimited confidence in the latter. After a long while, Chang Haonan raised his head again: Since it is a training aircraft, it is not suitable to use a single inlet design. He picked up a red and blue pencil, took out a piece of paper from the side, and drew a front view of an airplane on it: Whether it is the nose, belly or lower jaw, the single air inlet must be arranged on the axis of the fuselage, occupying the height space. This makes it difficult to arrange a rear cockpit with a height difference, so the air intake on both sides must be selected. " Considering the structural characteristics of the J-7 itself, it is not appropriate to make too many changes to the rear fuselage, so basically we can only consider the design of the under-rib air inlet. In addition, as for the wings, there is nothing wrong with the choice of double delta wings, but the design of the J-7E is still too rough as of now. ?Chang Haonan put down his pencil and motioned for everyone to come to the workstation: "There are two types of double delta wing plane shapes: one has fixed front and rear wing sweep angles, which is the straight-sided double delta wing on the J-7E. The other type has a fixed front wing sweep angle. The angle will gradually increase from a certain angle until it is 90 parallel to the fuselage. In this case, the essence of the front wing is close to an extremely large-area side wing, and the shape of the rear wing will also become The swept wings with a smaller angle are like those of an F18 fighter jet. He called up the 3D model of the wing that he had made a few days ago while waiting for the calculation results, and then continued: "From a styling perspective, the distance between the front wing vortex and the rear wing vortex of the latter scheme will be larger. At a larger angle of attack, the position of the vortex rupture point has been advanced to the front wing surface. In the middle, the separated flow formed after the spiral vortex breaks up is affected by the increasing local sweep angle and re-forms a rather compact vortex structure. " "Such a separated vortex structure distribution allows the latter solution to still generate considerable vortex lift after the front wing vortex breaks. In other words, the aircraft''s stall angle of attack and lift coefficient will increase, and the maneuverability at large angles of attack will be reduced. , especially the rolling maneuverability is better. As a price, the resistance of this solution is much greater than the first solution, and the maximum speed of the aircraft should be difficult to exceed 1.5 times the speed of sound. Speaking of which, Chang Haonan finally put together several preliminary parts to form the shape of an airplane: "But for a training aircraft, as long as it allows students to experience supersonic flight, the maximum speed is not the core performance. Using it in exchange for a comprehensive improvement in high angle of attack performance is definitely a sure-profit deal. Of course, more detailed numerical calculation work has not yet begun. The specific design plan and the extent to which it can ultimately be optimized are not yet known, so this is also our main task in the following period. ?However, most of the people around him didn''t hear these last two sentences. Because everyones attention has been attracted by the aircraft model on the screen Although it has not yet been designed in detail, it is very rough and uncoordinated. but ?Two-rib air intakes, swept wings with large edges, a large cockpit with good visibility due to the free space, and even a nose that can fit a small radar... ??If we look at the J-7F, we can still see a little bit of the original model. Even if the designers of the MiG Design Bureau were brought over to see the aircraft in front of them, they would never recognize it as an improved version of the MiG-21! (End of this chapter) Chapter 189 The idea of ??DSI air intake Chapter 189 Concept of DSI air intake This plane ?After staring at the screen for a long time, Sun Huizhong finally spoke again: I think the potential of this aircraft may not only be limited to being a training aircraft, but may also be used part-time as a light attack aircraft. He is now occupied with thinking of ways to build a plane that is in greater demand. ?It would be best if they could also be sold to foreign customers. ?At this time, the status of companies that can earn foreign exchange for the country can rise like a rocket. In addition to being used for teaching, the two-seat fighter jet can also be used for extra pilot operations that have nothing to do with operating the aircraft, such as searching for targets and controlling precision-guided weapons. Although these functions can also be concentrated on single-seat aircraft, there are still risks in allowing pilots to multitask. So it seems to be a pretty good choice to let an advanced trainer aircraft with good flight performance perform part-time ground attack missions. The cost is low after all. But after all, it is the same size as the JJ-7, so the bomb load and range may not be too optimistic..." Another person raised his own concerns. Isnt it better to be 5 stronger than the current equipment? ?Someone immediately retorted: And it can also be equipped with radar and precision-guided weapons. What precision-guided weapons do we have now? Wellthere will always be Sounds of discussion soon erupted all around. Well...actually, we can make some fine-tuning on the same platform. As soon as Chang Haonan, who was in the middle position, spoke, the others quickly fell silent, waiting for his next words: "For example, try to further increase the wingspan and reduce the sweep angle, so that the area of ??the outer wing section is increased and can accommodate an additional set of fuel tanks to increase the range. Then, by installing different onboard equipment, two sub-models can be developed. For customers with different needs. In a country like ours, there may no longer be a need for light attack aircraft in the future, so you can purchase an advanced trainer type, which means that the rear cabin only retains higher-authority driving functions, and there is no need to install radars and mount large-size ammunition. " Will there be a follow-up model of Qiang 5? ? Sun Huizhong was a little surprised by this judgment: I have a classmate who works in Hongdu and said that they are considering a new attack aircraft project. Chang Haonan nodded: Times have changed. For a big country like ours, the future will be dominated by multi-role fighter jets, with at most a few fighter-bombers included. The positioning of Qiang 5 is completely different from the currently common Su-25 and A10. It has no armor and poor low-speed performance. This model was designed to carry nuclear weapons to carry out low-altitude and high-speed penetration missions that are destined to go without return. However, due to limited technical conditions, the ammunition to go with it has never been released. The Hurricane One is actually just a nuclear trigger. Therefore, the attitude of using the remaining heat and the Army''s long-term lack of dedicated armed helicopters allowed this weapon to be used. The top cylinder of the model is responsible for tasks such as close support. At this stage that is about to enter the new century, there is no room left for light attack aircraft in the air force sequence. So, what about besides the advanced trainer type? Someone brought the topic back. "Although our country no longer needs it, some foreign users, especially users in third world countries in Asia, Africa and Latin America, their main combat targets are basically rebels or terrorist...guerrillas, so there is still a place for this kind of aircraft. , you can purchase the combat training model, install more advanced airborne equipment in the rear compartment, such as multi-function displays, and leave two relatively large hanging points for hanging some air-to-ground missiles. Is this possible? " The rest of the people showed expressions of surprise or realization. This idea was not very popular in the mid-1990s, but after entering the 21st century, as the cost of fighter jets soared rapidly, many small countries began to consider giving up establishing an air force with air combat capabilities (it couldn''t defeat it anyway, so it was better to simply Abandoned treatment), and turned to trainer/attack aircraft and integrated patrol and attack drones as the main models. "Of course, in the next period of time, I will work with you to improve this plan and optimize the design of several key parts. When you master the design method, you can also adjust the aircraft according to actual needs and future test flights. Make subsequent adjustments. ?Chang Haonan turned around and looked at the few good seedlings sent by 648 in front of him and said. ?After more than half a year of experience, he has gradually become accustomed to the computer basics of people in this era, and there will no longer be the same mistakes as when he taught Yao Mengna. Before rebirth, all graduate students must have been quite proficient in numerical simulation and knew one or two basic programming languages. But in 1997, most designers only had some familiarity with a few common modeling and fluid calculation software. They had only read a book and used it themselves, which was considered a rarity. ?This situation will probably last another two or three years, and it will not be fundamentally relieved until the same batch of students like Chang Haonan graduate with a master''s degree or a doctorate. We all listen to you! Everyone, including Sun Huizhong, showed excitement instantly. We are all people who can enter the aircraft design research institute, so we naturally know the difference between a full meal and a full meal. ??This kind of opportunity for a big boss to teach you how to design an airplane is not available to everyone. Not to mention learning all the other party''s abilities, even if you learn 30% to 40%, it will be enough for 648 to come up with some new tricks. Well, I have just explained the overall design of the aircraft, so let me first systematically introduce the theoretical basis and basic steps of digital design... ?In the next two hours or so, Chang Haonan gave the engineers of Institute 648 a lesson that was roughly equivalent to an introduction in an empty conference room with a blackboard nearby. Fortunately, these college students who graduated in the 1990s or even the late 1980s have much more solid theoretical foundations than later generations, so this aspect is not difficult. They are just like Lin Shikuan and others at the 601 Institute and need to change their thinking. Considering that everyones experience is not enough, we still have to proceed step by step in terms of design difficulty. No matter what, we must first come up with the specific design plan as soon as possible, so that the superior units and users will have confidence. "So we can use a more traditional bulkhead air inlet in the first version of the design, and the design of the side strips and wings can also be a little more conservative. We can slowly use it after the project is actually applied for, or even after the first prototype flies for the first time. on some more radical technologies. After saying this, he put down the chalk with a thirsty mouth, picked up the cup and took a swig of water. In fact, it is quite normal to use an aircraft specifically to verify a certain technology. ?For example, in the United States, the technical verification of the DSI air intake was carried out on a modified F16block30. The Soviet Union also verified the axially symmetrical appropriate number of nozzles on a modified Su-27UB. ??Its just that Chang Haonan wanted to be more efficient and created Coach 9/FTC2000 in the process. Are you so sure that the Air Force will approve our model proposal? Obviously some people are not confident enough. After all, 648 Institute has had little successful experience in this area in the past. Of course, thats what Im going to say next. ?Chang Haonan turned the filled blackboard to the other side: In the final version of the design plan, I plan to use a boundary layer-free supersonic inlet, which is the DSI inlet. "On the one hand, this can reduce the weight of the aircraft by about 130-150 kilograms. On the other hand, and more importantly, this project with a lower overall risk is also used for verification. If the technology is mature, it can be used in Project 10, or even More future fourth-generation fighter jets. With this second reason, and the fact that the Air Force really needs a new type of advanced trainer aircraft, I think it should be a sure thing to formalize this model. (End of this chapter) Chapter 190 persian tomcat Chapter 190 Persian Tomcat DSI air intake? Although related concepts have been proposed very early, they were obviously not very common in 1997. Therefore, Sun Huizhong thought for a while before searching for relevant knowledge in his mind: "I remember...a few years ago, the United States built some kind of advanced compact air intake system. It seems that this is what they were studying?" Thats right. Chang Haonan nodded. In an era of underdeveloped information, he was really impressed that the other party knew this: Actually, I have applied the central idea of ??the DSI air intake in previous designs. While speaking, he had drawn a cross-sectional schematic diagram of a DSI air inlet and a baffle air inlet on the blackboard: On the J-7F, I used the nose radome as a cone-shaped precursor instead of a complex partition to process the incoming flow once to prevent low-energy flow from entering the air intake, which greatly improved the air intake efficiency. But in fact, the standard semi-conical shape is not very precise in controlling the flow field, so a more complex fan-shaped lip design is still needed to improve the ability to exclude the boundary layer, which will bring great resistance. , on the other hand, it will increase the volume of the air intake and add back the weight saved by eliminating the partition. Hearing this, another engineer next to him seemed to think of something: I have indeed seen a photo of the F16. Although it is a bit blurry and it is still black and white, the air intake is indeed similar to the one on the blackboard. The shape is quite exaggerated, a bit... a bit like the toad mouth you mentioned before. ??And Sun Huizhong''s thinking is obviously more in-depth: So, the key to the design of this DSI air intake lies in the shape of this... bulge near the lip? The following content was completely beyond the scope of Chang Haonan''s painting skills, so he simply did not continue the meaningless attempt. Fortunately, we are all professionals, and we can explain everything with words alone: "Yes, the bulge compression surface of the DSI inlet is designed based on the waverider principle. Its basic shape is still a conical surface, but several tracking points need to be selected from the leading edge line, and these tracking points need to be selected in the flow field. The point starts to trace downstream of the flow field, and the flow surface formed by these traced streamlines is the bulge compression surface. Although this process is not difficult to say, the numerical calculations involved are quite complicated. I also need to sort out my ideas, so I cant rush it for the time being. I will first complete the overall design according to my previous plan. In fact, Chang Haonans idea is similar to his previous idea for Turbofan 9, which is to conduct research on certain key new technologies in advance for subsequent key models. Last time it was for the Turbofan 10, and this time, it is undoubtedly for the J-10. Since in this time and space, the J-8C has successfully completed the design and finalization and been delivered to the troops for trial use, third-generation aircraft, especially single-engine medium-sized third-generation aircraft like the J-10, can now completely put aside their pursuit of speeds above Mach 2.0. , and instead focus on optimizing overall performance at medium and low speeds. ? Now that the No. 01 prototype of the J-10 has reached the final assembly process, it is naturally impossible to tear it down and start over. However, the new DSI inlet design can still be used on subsequent full-state prototypes. As long as his efficiency is high enough. After all, the shape of the air inlet of the J-10 itself has undergone a major change. In the full-size model in 1991, an air intake similar to that of the F16 was still used. At the prototype stage, it was replaced with a two-dimensional adjustable inclined plate inlet that focused more on high-speed performance. The previous generation Xiaolong only really used the DSI air intake design from the No. 04 prototype. In addition, the design plan of the No. 01 prototype will not be wasted. It can definitely be exported. China does not need the high-speed capability of the J-10, but it does not mean that other countries do not need it either. Most countries have only one type of main fighter aircraft. This model needs to cover everything, so an old design with relatively good air intake efficiency in the entire airspeed range would be more suitable. Just when Chang Haonan was taking advantage of his limited time a year ago to conduct research on new aircraft and new designs in Chengdu, the 410 Factory in Shengjing welcomed a group of guests that Chinas military industry had not seen for a long time Delegation from Persia. Led by Brigadier General Mark Welsh, Chief of Staff of the Persian Air Force. Among the people responsible for reception, Zhong Shihong, who is responsible for technical work, is naturally indispensable. In fact, during the Xiangzhou Air Show in early November last year, the Persians had already shown a strong interest in several models. The subsequent development did not exceed the expectations of the aviation technology group. They quickly received the information that the other party hoped to use in the military. request for cooperation in sales. ?Its just that no one expected that the one that Persia first expressed interest in was neither the J-8C nor the J-7F, but the Turbojet 14. So under the leadership of Zhong Shihong, the Persian delegation spent about a day visiting the final assembly workshop of the 410 factory and part of the production workshop Again, if the Erharma can be done when you look at this thing, then the previous life of Huaxia will not be able to take out a stable turbofan 10 ... Brigadier General Welsh, I wonder what kind of fighter jet you plan to use our aircraft engine to adapt to? ?Zhong Shihong almost subconsciously thought that the other party was going to buy an engine. As the factory owner, he does not need to think about "whether it can be sold". That is the task of the Science and Technology Commission and the Aviation Technology Group. ?Furthermore, although the Turbojet 14 is a top-notch aviation engine for China, if you really want to compare it on a global scale, it is actually not a particularly extraordinary black technology. If someone buys it, there is nothing it cannot sell. In this era, China''s military industry has not yet reached the level of being selective about its customers. ?But he was obviously wrong. After hearing the question through an interpreter, Welsh shook his head decisively: No, Mr. Zhong, we are not here to buy your engines. After all, to be honest, considering the current level of the aviation industry in Persia, it may be difficult to fully produce fighter jets. We want to entrust you with the overhaul of a batch of turbofan engines. When he first heard this answer, Zhong Shihong thought it was a mistake in the translation. But he soon realized what the other party was saying: Are you referring to the TF30 engines on your F14s? Thats right. ??Welsh turned around, looked at several turbojet 14 engines being assembled in the factory and said: You should know that the combination of TF30 and F14 does not perform satisfactorily in terms of reliability. Although our pilots have been very careful when driving, failures such as engine surge often occur. Over the years, the spare parts previously purchased have been exhausted. After all, the number of parts obtained through special channels is limited, and the quality and quantity are unstable. The F14 is our main model, so we thought of seeking technical help. (End of this chapter) Chapter 191 Persian Air Force Rebirth Plan (2-in-1) Chapter 191 Persian Air Force Rebirth Plan (2-in-1) What Brigadier General Welsh, you should know that building your own engine and overhauling an engine from another country are completely different things, especially when it comes to parts replacement. ?Zhong Shihong did not directly take over everything: I can only say that from a technical point of view, there should be no insurmountable technical obstacles for us with the TF30, but as for the specific situation, I am afraid we need to wait until we see the actual situation of the engine before we can make a judgment. Sometimes it is this calm attitude that is more reassuring, so Welsh nodded immediately: Of course there is no problem. You can send some technical personnel to Isfahan. This is also one of the exchange conditions we have reached with your countrys aviation technology group. ?This sentence is a bit strange. In principle, as a company that collects money to perform services, there seems to be nothing special about Aviation Technology Group to provide services at customers'' designated locations, and there is no "exchange condition" involved. ?However, considering that the Aviation Technology Group is essentially the vest of the aviation industry, and the latter is closely connected with the Commission of Science, Technology and Industry for National Defense and even the entire military system, Zhong Shihong estimates that there are some twists and turns behind this that he is unaware of. But he did not ask any more questions in front of Welsh, but continued to introduce to him several engines mainly produced by the 410 factory, of course the main ones were the turbojet 14. In fact, the job of engine overhaul is not much easier than building a new engine. What''s more, it is a new model that has been completely untouched in the past. It requires sending people to go on business trips and even opening additional molds to make some spare parts that need to be replaced. , the workload must be quite huge. However, no matter how you say this is just a maintenance business after all, the Persians came to Shengjing instead of Rulika-Saturn. Obviously, it was not because the former''s technology was better but because of the cost, so it was impossible to charge too high a price. , it can only be regarded as making hard money. But selling engines is different. Although the aviation manufacturing industry cannot yet achieve the same level of assembly line production as some low-end manufacturing industries, the scale effect does exist. For a mature aviation engine that has been finalized, the cost and man-hours required to build 100 units is only about 1.5 times that of building 50 units, but the profit gained from selling it is twice the actual amount. What''s more, this is still an export. Although the Persians are not as big as dogs, they must still pay in hard currency. If it doesn''t work, you can still exchange it for oil. With the continuous development of the national economy, China began to transform from a net exporter of oil to a net importer in 1994. In the following two years, the import volume expanded rapidly, and there was a faint trend of oil shortage. Under this situation, what can be done Getting crude oil can be considered a great achievement. ? In short, no matter what, as the management backbone of Factory 410 and one of the main persons in charge of the Seiko Project, Zhong Shihong can definitely benefit from it. ?However, Welsh showed very little interest after talking about overhauling the TF30. The interest he expressed in the turbojet 14 seemed to be just to come to the 410 factory to confirm their technical level. Zhong Shihong, who was born as a technical worker, thought that he was not very good at selling words, so after discovering this, he did not continue to pester, and instead began to quietly mention the excellent performance of the J-8C and J-7F. ??Welsh said that he had seen the J-8C''s flight performance at the Xiangzhou Air Show on TV and was full of praise for its performance. But he still didnt show any intention to buy it. ?This time its completely out of the question. ?However, Zhong Shihong did not give up just like that. After dinner, he found the leader of the aviation technology group who came with the Persian delegation. ??Although one is in a technical position and the other is in an administrative position, they are both from the aviation industry system after all, so the two chatted together within a few words. ?Zhong Shihong leaned on a railing outside the guest house, took out two cigarettes from the cigarette case, then gave one to the other party, and took out a lighter to light them respectively. After a set of smooth movements, he successfully brought out the topic he wanted to talk about: This group of Persians came all the way to China just to visit our 410 factory? "Of course not. They have arranged a trip of about ten days this time. If you ask me, they are really good at picking the time. Even if it is half a month later, I will not be able to go home to celebrate the New Year''s Eve." ??The team leader next to him took a long puff of cigarette and blew out a smoke ring into the air. ??In front of his own people who have a sufficient level of confidentiality, the team leader can finally complain with confidence. Hey, those of us on the front line are really working hard. Zhong Shihong, who was deeply touched by this, nodded. Due to the nature of work in Factory 410, he often cannot go home for holidays. These words brought the distance between the two closer. So Zhong Shihong strikes while the iron is hot: Where are they going to go next? They didnt have any plans themselves. They just specified that they would come to Shengjing first and then to Factory 182 in Nanzheng. We will decide the rest of the itinerary. Factory 182? ?This final destination surprised Zhong Shihong. After all, in the aviation industry system, this can only be regarded as an inconspicuous place, and its presence is probably similar to that of the Yunma Factory that built the city. "Well, there are two Y-8Fs they ordered over there, but they have been delayed in delivery due to the improvement of the aircraft. This time I just received them together and flew them back." So thats what it is Zhong Shihong nodded and put out the half-smoked cigarette on the iron railing: Then what are you going to do? The leader smokes slower, so the cigarette **** is still burning: "Let''s go around from north to south and east to west. The Persians don''t seem to be interested in buying aircraft. They just want to do some work on upgrading the old aircraft to extend their life. They promised that we can send them out. Technicians and pilots are familiar with the performance of U.S. military aircraft at close range. Old aircraft upgraded The keyword finally appeared. ?So Zhong Shihong took advantage of the situation and continued to ask: By the way, besides the F14, what other models do the Persians have? Cant this one model take the lead? In this era, information was relatively limited, and information was basically obtained through television and newspapers. However, no media seemed to be interested in the air power of a medium-sized country, and there were very few relevant reports. ?The last time Persia became the focus was the Iran-Iraq war, but it is difficult to find news from 10 years ago. ??On the contrary, those in the Aviation Technology Group who have direct contact with foreign personnel can obtain a lot of first-hand information. ?As expected, the team leader gave the answer almost without thinking: "There are not many F14s. There are only about fifty or sixty of them still flying now. The main force is still nearly 200 F4Ds and F4Es, and there are more than 100 F5s. They are all our old friends. There is not much research value. The above Im still more interested in F14, after all He did not continue, but the following content was obvious After all, a year ago, the two aircraft carriers, the Nimitz and the Independence, which brought huge pressure to the Chinese military, carried the main aircraft model F14. ?But Zhong Shihongs attention is obviously elsewhere. F4 and F5 After muttering a few words, his eyes suddenly lit up. The F5 fighter is a twin-engine light fighter that competes with the MiG-21. The reason why the twin-engine engine is still lightweight is because the J85 engine it is equipped with is actually a model originally planned to be used on cruise missiles. The afterburner thrust of a single engine is only 1800kg. Without afterburner, it is even worse, 1300kg. The two engines together are less than half the thrust of the turbojet 14. Of course, the size is also very small. The F5 aircraft is generally relatively compact. In short, the Turbojet 14 is indeed too big if you want to force it in. But F4 is different. In the standards of second-generation fighter jets, the F4 is an absolute "heavy fighter". The maximum take-off weight is nearly 30 tons and is powered by two J79-GE-17 turbojet engines. The thrust of the J79 is 8100kg, which is similar to the turbojet 14, but its weight is as high as 1800kg and the thrust-to-weight ratio is very low. It is a typical early second-generation turbojet engine.?????Isn''t this right! It is not difficult to insert a small engine into a large body. The remaining problem is how to get the Persians interested in this plan. ?Zhong Shihong quickly thought of a way If there is no demand, then create demand. I have an idea about the next itinerary. I wonder if you would be interested in hearing it? ?He turned around slightly and asked the leader casually. ?Unsurprisingly, the other party readily agreed: Okay, you are professionals after all. "For those of us who manufacture aircraft and aviation engines, we have seen too much that they are all the same. There is not much difference. You can just arrange a few representative visits, such as Factory 112 and Factory 172. " ?Although this sentence contains some personal information, it is indeed correct. ?So the team leader thought for a moment and nodded, indicating for him to continue. In your free time, I suggest you take them to the 607 Research Institute, the Aviation and Missile Institute, and the Second Mechanical and Electrical Bureau of the Shanghai Aerospace Corporation to take a look. I think they will be very interested. After a lot of twists and turns, Zhong Shihong finally said what he finally wanted to say. Institute 607 is engaged in radar, and its most famous product is the JL10 airborne fire control radar. The Aircraft Missile Institute and the Second Electromechanical Bureau are engaged in missiles. The formers representative work is the YJ-8 anti-ship missile, while the latter designed the PILE 11 air-to-air missile that has just completed final target testing. In addition, there is a person from the 410 Factory here who is responsible for building engines. The Persians came here this time, obviously to update their fighter jets. In addition to life extension and overhaul of the airframe and engine, I am afraid it will also be necessary to equip the AN/AWG9 radar with new airborne weapons. Although the AIM-54 has a long range and is powerful, its intended combat targets are, after all, only large aircraft with little maneuverability such as the Tu-22 bomber and the Kh22 long-range anti-ship missile it launches. After various countries, especially the Persians mortal enemies Goudahu and the Kingdom of David, have entered the third-generation machine era, the Phoenix seems a bit too cumbersome. ?Furthermore, these missiles imported from the United States also have fewer rounds, and the remaining number may not be enough. ?In this case, it is logical for them to find new air-to-air missiles for the F14. As it happens, the Thunderbolt 11 of the Second Bureau of Electromechanical Engineering and the AIM7 Sparrow are quite related. Compared with the R27 from Russia, the fitability is obviously much better. ?However, even if these can be achieved, the benefits will not fall on the 410 factory. ?Zhong Shihongs real target is the more than one hundred F4E fighter jets. The age of the aircraft is generally only about 20 years, and the flight time of the Persian Air Force is not long. Coupled with the dry climate, the life of the aircraft should be quite sufficient, and there is great potential for modification. This is why he added a 172 factory in Haojing to his recommended itinerary The JH-7 is produced here. When Chang Haonan and Chang Haonan had a meeting with Zhang Zhenhua from Factory 430, he remembered that the latter said that recently many JH-7s were just in need of mid-term overhaul and were being returned to the factory in batches for maintenance and upgrades. So when you visit the 172 Factory, you will definitely see the JH-7. As a Gulf country, Persia obviously has a need for an air-based anti-ship missile launch platform, and the F14 is not qualified for these tasks. ?Furthermore, the Persian Air Force, which values ??these heavy fighter jets, will not be willing to let them do such dirty work. It is of course impossible to buy an airplane directly. On the one hand, the export of fighter-bombers with a longer range is relatively sensitive, and the price is probably not within the range of customers. On the other hand, before the turbofan 9 is completely domestically produced, even China itself cannot build a new JH-7, and it really has no way to sell it... But that doesn''t matter. By this time, the delegation had already seen Feibaos upgraded JL10A radar, the same model of YJ-8 anti-ship missile, and the same model of Pili 11 air-to-air missile... You must know that the data bus of the Chinese Air Force also refers to the 1553B standard. ??As long as the above things are stuffed into the F4E body, you can get more than a hundred multi-purpose fighters that can both air combat and anti-ship at a very low cost. In other words, the JH-7 wearing an F4 shell. You must know that the JH-7, which was just put into service that year, has repeatedly suppressed the F4EJ of the Self-Defense Forces over the East China Sea. ??There really can be more than a hundred of these things. Not to mention being invincible in fighting all over the bay, at least it can make any warship within 500 kilometers of the Persian coastline weigh its importance. ?Who can not be jealous? As long as Persia shows interest in this upgrade plan, then Dear, the power generation and performance of the J79 engine are too poor, and it cannot exert its full performance. Why not upgrade the power by the way? The free interior space can also add more than a ton of fuel, and the range can be raised to a higher threshold... ??If a computer DIY player from 20 years later can see this scene, then he will probably be very familiar with this set of words. Put in the card with a budget of 3,000, and add money to increase it to 28,000... In short, this set of processes accurately grasps human psychology, and the final solution is really high-quality and low-priced. The upgrade cost of each aircraft is only about two million US dollars, but it can improve the air force''s combat effectiveness to a new level. ?Combined with Persias special geographical location, it even has a certain strategic deterrent effect. Well...the Missile Institute and the Second Bureau of Electromechanical Engineering are not part of our system. If you want to go, Im afraid you have to apply to the Science and Technology Commission..." ??The team leader seemed to be talking to himself or to Zhong Shihong. ?When he saw the other party, he was still a little hesitant, but the latter simply told him everything he had just thought. ?Of course, some non-important parts have been omitted. The atmosphere between the two was silent for a full minute. ??The team leader looked at Zhong Shihong in shock: Zhong Gong, would you like to consider working in our aviation technology group? I am just for the development of the countrys military industry and energy security. Zhong Shihongs face did not change. No matter what, your idea is great. I will contact the Science and Technology Commission tomorrow. Just wait for my good news. The two parted quickly. Zhong Shihong, who was walking back to his dormitory, happily reviewed the operation he had just performed. Whipshot 14, Pili 11, JH 7 Fuck, Chang Gong is so awesome. he concluded. (End of this chapter) Chapter 192 Drones can also be used (for the monthly ticket fee of last month) Chapter 192 Drones can also be used (Added update for flankerr, the monthly ticket holder of last month) On the other hand, Chang Haonan, who is in Chengdu, still doesnt know that his research results have begun to have an impact on the geographical pattern. ? In the last few days of the year, he has been assisting, or it can be said to be guiding the engineers of the 648th Institute in the overall design of the advanced training aircraft that has not yet been named. ? Without considering the most troublesome part of the DSI air inlet for the time being, the difficulty of this work mainly lies in the shape design of the side strips and wings. Even without Chang Haonan, the remaining parts can be completed by just a few other people. As for digital assisted design, the situation is similar to the previous one at 601, mainly due to lack of experience and the incompatibility of old ideas and new design software. Fortunately, the people sent here by 648 are all young people and do not have too heavy burdens, so they can learn faster in this regard. In one week, most of the design process has been completed. Although this is still a long way from a complete plan, Sun Huizhong and others are also genuine aircraft designers. No matter from the perspective of professional dignity or from the perspective of training their own abilities, it is impossible to wait for Chang Haonan to feed them. In the mouth. ?Besides, the rest of it really just needs to be done step by step. ?Before parting, Sun Huizhong specially invited Chang Haonan to have a meal at the guest house to express his gratitude. Chang Gong, regarding this project, should I apply to my superiors immediately after I return to the institute? Two aircraft designers got together, and the topic naturally returned to aircraft. People who engage in science and engineering often behave very boringly. But it is these boring people who provide the most basic driving force for technological progress and social development. Not for now. Chang Haonan waved his hand: If you apply now, on the one hand, it is approaching the end of the Spring Festival, so it is easy to put it on hold and forget about it when the new year comes. On the other hand, the importance of this project has not been reflected yet. "Don''t be anxious when you go back. When it''s time to celebrate the New Year, celebrate the New Year and perfect the plan. I should find a suitable time after the year to submit the pre-research application for the DSI air inlet. After that, you can apply for this higher education project. Come on. If you cooperate with me, you will basically be sure of success." ??In this era where you can''t wait to break a penny into two and spend it, you still need to pay attention to some skills when applying for a project. ?According to Chang Haonan''s experience, if you say "I want to build a new advanced training aircraft and study the DSI air intake by the way", then the higher-ups will first consider whether I really need a high-level training aircraft. The answer is often no, after all, old models are not unusable. As a result, JJ7 was produced until 2017 in the previous life. But if you say "I want to study the DSI air intake and build a new advanced training aircraft", then this is a technical research tied to the No. 10 Project. The high-level training aircraft is a by-product, and the probability of passing it will be extremely high. few. After all, the J-10 really needs a DSI air intake. Okay, its all up to you. ??After this period of contact, Sun Huizhong was convinced of Chang Haonan''s patience, so he immediately nodded in agreement. In addition, I think you should not just limit your attention to advanced trainer aircraft. You can also give full play to your advantages and try to exert strength on other tracks. ??Although factories in the aviation industry system are not having an easy time in this darkest hour before dawn, the combination of 648 Institute and Guifei is also in a particularly bad situation. Before his rebirth, around 2017, Chang Haonan had witnessed the big battle when Guizhou Airlines was working on FTC2000G. The entire factory, from the general manager down, had food and accommodation at their posts, setting a speed record from design to first flight. According to their own words, this is the model that determines the future and destiny of the group, and there is no room for any delay. The fighting spirit of aviation people in the mountains is still there. So now Chang Haonan is ready to help them in advance. What advantages do we have? ?Sun Huizhong was so shocked by these words that he almost couldn''t hold his chopsticks. "Things always have two sides." Chang Haonan was also made to laugh a little by the other party''s reaction. ?According to normal standards, 648 Institute really cannot find any advantages, but if you look at it from another angle, it is not necessarily so... "It is true that you have insufficient design experience, but this also means that there are not so many rules and historical baggage, and you can learn new ideas and new concepts with ease. You can see that you are learning digital design very efficiently these days, compared with 601 and 611." Comrades are much faster. "Also, your talent team construction is relatively weak, but small scale is not necessarily a bad thing. A small ship can be easily turned around, and everyone''s interests are relatively consistent. There are not so many problems related to the food and clothing of millions of workers." In addition, your location is indeed relatively remote, but relatively speaking, it is also cleaner Listening to Chang Haonan''s high EQ remarks, Sun Huizhong showed a somewhat strange expression: Chang Gong, are you sure you are complimenting us? ??If he himself was not born in 648, he might believe it just by hearing these words... Ahem...Of course Im complimenting you, Im not joking. Chang Haonan also realized that he had let himself go a bit at the end, so he had to cough twice to cover up his embarrassment: "Your shortcomings in engineering experience, as well as the aerodynamic and structural design of complex aircraft systems are obvious. Even if you have this advanced training aircraft project to practice, if you really want to compete with big brothers like 601, 603, and 611, I''m afraid you won''t be able to win. Its cheap, and outstanding talents in this field will be concentrated in a few large research institutes. To be honest, the gap in this area will only get wider. ?Sun Huizhongs face gradually became serious: But this is the law of the Matthew effect. It may be difficult for us to reverse the situation by ourselves. Even though he didn''t want to admit it, he knew that these were correct. Even if they can survive for a while with the help of Chang Haonan, it will be difficult for them to keep up with the overall development pace of China Aviation Industry. Their final fate is likely to be merged into a brother unit. Thats why I said, let you try to exert your strength on other tracks. ?Chang Haonan tapped the table twice with his fingers: Aerodynamics and structure are shortcomings, so dont make too complicated designs in these two aspects. The simpler the aerodynamics, the better. Dont build the aircraft so big, and there will be much fewer structural problems. "You can focus on recruiting talents in communications, radio and electronic information engineering, and pay enough attention to related fields. As far as I know, the aviation industry system recruits relatively few people in these majors every year. If you make a time difference, you should Its easy to get a first-mover advantage. Uh the aerodynamics are simple, and its still a small airplane Can such a product really be competitive if its built? ?Sun Huizhong looked to the opposite side in confusion: I mean, even if we want to build a general aviation aircraft, it seems difficult for us to compare with Hongdu. The Y-5 should be absolutely dominant now. Its not navigation, its drones, like the American Pioneer and the Predator. Actually, this is something Chang Haonan has been thinking about for a long time. With the exception of a few exceptions, the "aircraft" part of most drones is actually very simple, and can even be said to be crude. It would be a bit overkill for those powerful ones to do it. ? And everyone is blank in the field of remote communication control. If they are at the same starting line, it may be that small units like 648, which are still under pressure to survive, develop faster. "Of course, our country''s current satellite resources are still relatively limited, and it is not realistic to achieve ultra-large-scale control through satellite communications. But even if we only rely on signals from ground stations, it is enough to control drones within a range of several hundred kilometers. Some simple flying moves." Drone ??This term is of course not unfamiliar to Sun Huizhong. It is not too late for China Aviation Industry to come into contact with drones, and there are even several models in production now. But those are basically various types of target drones, or derivative models based on target drones. To put it bluntly, they are the various descendants of the BQM-34 Firebee drone. The pioneers or predators mentioned by Chang Haonan are completely different ideas. (End of this chapter) Chapter 193 First sight of J-10 (Part 1) Chapter 193: First sight of J-10 (Part 1) To put it simply, drones in the past did not seriously consider the advantages of having fewer pilots. They were basically designed according to the smaller manned drones and performed some tasks that had a high probability of no return, but were not complicated. It''s just a high-risk mission. But after entering the second half of the 1980s, the positioning of drones began to change. Engineers and the military gradually discovered that without having to consider the pilot and a series of related systems such as life support and input and output, they could freely determine the size of the aircraft according to its mission requirements. ?Especially for aircraft used for reconnaissance, patrol and other purposes, the mission load itself is not large. After getting rid of the burden of the pilot, only a small aircraft can meet the requirements. Correspondingly, the power level and fuel consumption required by the aircraft are also greatly reduced, which in turn brings lower operating costs, longer endurance time and stronger site adaptability. ?Some can even take off without a specially paved runway. Take the "Pioneer" unmanned reconnaissance aircraft specially used for reconnaissance as an example. Its length and wingspan are only about 5 meters, and its take-off weight is less than 200kg. However, it can fly at a speed of about 100 kilometers for up to 9 hours. This is for an aircraft. It is almost unimaginable for a conventional manned reconnaissance aircraft. Whats even better is that this kind of aircraft only uses a gasoline engine of less than 30 horsepower. The entire aircraft hardly involves any specialized aviation subsystems. Therefore, it does not require maintenance by professional ground crews. Basically, it can be maintained wherever vehicles can be maintained. Maintain this drone so it can be used by Army units at the division and brigade level. This means that aviation reconnaissance resources that used to require extremely complex cross-service coordination processes and were highly likely to be unavailable are now directly integrated within the organization and are almost readily available. ?Which commander wouldnt want it? In this regard, our country is still basically blank. ?After being opened up by Chang Haonan, Sun Huizhong suddenly felt that everything was dark and bright: I will report to the institute after I go back. It just so happens that universities have not graduated yet this year. We can take advantage of this opportunity to organize a UAV flight control research laboratory. The latter smiled from ear to ear, poured himself another glass of beer and drank it all in one gulp: The young people who have just graduated now are very good, they are much better than we were back then! ?While speaking, he glanced across the dining table inadvertently. "Well" ?Chang Haonan touched his nose slightly embarrassed. Obviously, during this period, a certain undergraduate student behaved in a somewhat inhumane manner, which gave him some unrealistic illusions about the level of new graduates. ??But looking at Sun Huizhong in excitement, he decided not to attack other people''s optimism for the time being. ?Some truths still need to be understood through the cruel education of reality. After bidding farewell to several engineers from the 648 Institute, Chang Haonan''s mission in Rongcheng was basically over. The remaining work on the J-7F needs to wait until the two prototypes are off the production line. However, for the comrades who have worked hard at Factory 132, I am afraid that a considerable number of them will have to spend the New Year at their jobs. As for the theory he has been conceiving to predict surge or other engine failures by detecting intake-related data, it requires a huge amount of data for research. It is not a theory that can explode in a short time. Something that produces results. ?Chang Haonan was walking in the courtyard of No. 611 rather aimlessly. ?It is the 23rd day of the twelfth lunar month, and several workers in logistics uniforms are hanging colorful **** made of paper on the street light pole nearby. Logically speaking, he is not an employee of the aviation industry, and school has already been on vacation. If there is no work here, he should be able to go home. But a kind of emotion called "I feel more timid when I''m near the countryside" bothers Chang Haonan all the time. From the perspective of people in this timeline, he just hasn''t been home for a year. However, for Chang Haonan himself, although the two old people were still alive before his rebirth, they were already in their seventies. Now when he returns home, he will see his parents in their prime and his seventeen-year-old sister. Its a completely different feeling. Of course he wants to go home. But when it comes to being able to go back at any time, there is an inexplicable tangle. What would it be like to see your parents who have not yet aged after entering the house? Would you like to bring some gifts to your family? What is the first thing you say after entering the door? ?These questions kept lingering in his mind and became more and more disturbing as the time for his return home approached. Comrade Xiao Chang! A familiar voice sounded. is Lu Yuying. Chang Haonan raised his head and realized that he had unknowingly arrived near the computing center where he had been working during this period. Its New Years Day today, havent you gone home yet? Lu Yuying walked out quickly. I just sent away 648 Sun workers and the others, but I havent decided when to go home yet. Chang Haonan calmed down and found a reason to deal with it: After all, there are still some finishing touches to be done before the year. Lu Yuying was stunned when she heard this answer. Of course he didnt know the complex emotions in the other persons heart, so he believed this statement of course. Then he made a logical guess: Comrade Xiao Chang, are you planning to go to Factory 132 to have a look? "Well" Chang Haonan was also stunned when he heard the question. ??During this period, he was so busy that he didn''t even have enough time to sleep, so he didn''t originally have this idea. But now that we have said this, it seems there is nothing wrong with going to Factory 132 to see the J-10 prototype in the manufacturing process. Indeed, Unit 01 of Project 10 should be almost completed, right? I have long wanted to see the third-generation fighter jet designed by our country. Hey, if you want to go, just tell me directly. You are not considered an outsider, and the level of confidentiality is enough. It is just a matter of calling a taxi. The J-10 is definitely a landmark page in the history of China''s aviation industry. Although Lu Yuying himself was not directly involved in the No. 10 project, when talking about related topics, his words and expressions still reveal uncontrollable pride. : Come with me, the two of us will go there together. In the evening of that day, under the leadership of Lu Yuying, Chang Haonan finally walked into the final assembly workshop of Factory 132. Prototype No. 1001 is currently undergoing final assembly, and a lot of airborne equipment has not yet been installed. But as a reborn person, he has been able to identify almost all the basic features of the entire aircraft The wing combination of a canard and a delta wing, a wasp-waisted design in the middle of the fuselage, a huge vertical fin at the tail, two ventral fins and speed brakes... Chang Haonan''s breathing became heavy involuntarily as he looked at the staff busy around the plane. As one of the main equipment of the Chinese Air Force, Chang Haonan naturally saw the J-10 with his own eyes before his rebirth. ??I also had a close encounter with it in the Aviation Museum. But it feels completely different now. He is in the assembly workshop of Factory 132! This fighter jet, which is a legend for China, has not yet made its first flight. Its not even finished yet. And he will have the opportunity to directly participate in the research and development of Project No. 10 and become a witness to this story. Or...promoter! (End of this chapter) Chapter 194 First sight of J-10 (Part 2) Chapter 194 First sight of J-10 (Part 2) In the busy crowd, someone soon noticed the two people who had just walked in from outside. Lao Lu? ??Lu Yuying is quite well-known in the 611 School, so even though she is wrapped in a cotton coat, she is still easily recognized. One of the middle-aged men with a square face and half-white hair took two steps forward. Then he also noticed the young face following him, and spent about half a second thinking about it, finally confirming that he had not seen the other person before. ??Although the 611 family has a big business and it is impossible for everyone to know each other, being able to be taken into the 132 factory by Lu Yuying in person is obviously not a casual role. ?Then the answer is obvious. This must be Comrade Chang Haonan. Hello, Mr. Xue, its an honor to meet you here! ?This time, Chang Haonan directly recognized the other party''s identity. Chief engineer of Project No. 10, Xue Chishou. After establishing a new management model in 1994, the chief engineer became the final decision-maker and person in charge of the entire project. Equivalent to a big leader. The chief designer is more concerned with specific technical issues. "I have heard from Lao Lu and Lao Song before that there is a very capable rising star from Beijing Airlines, and he was invited to come to our 611 Institute, but he has been nailed to the 132 Factory for this period of time. I didnt have time to go back to the office to see you while dealing with the problem. Xue Chishou patted Chang Haonan on the shoulder, his tone full of kindness. Thats why I asked Mr. Lu to bring me here to meet with your seniors in charge of Project No. 10. Under the exchange of pleasantries, the people who were actually meeting for the first time quickly became familiar with each other. Lao Song happens to be on a business trip these two days, so we can only wait until the next meeting to get to know each other. Xue Chishou said with regret, and then pointed to a slightly younger engineer behind him who was checking data in front of a laptop: The deputy chief designer of Project No. 10, Yang Wei, is very capable and should be able to speak a common language with you. Hello, Comrade Chang Haonan. ?Yang Wei temporarily stopped what he was doing and shook hands with Chang Haonan: I have heard about the situation in Haojing and Shengjing before and solved many long-standing problems, but I still didnt expect you to be so young. I have also admired your name, Mr. Yang, for a long time. Facing Yang Wei at close range, who was still in his early thirties, Chang Haonan would be lying if he said he wasn''t excited. ??This man is a real boss and a genius. I graduated from junior high school at the age of 15 and took the college entrance examination without even attending high school for a day. I was admitted to Northwestern Polytechnical University. After graduation, I worked in the aviation system. It took only 7 years to become the director of the research office and deputy chief engineer of the model. ?Chang Haonan once even doubted whether the other party was also cheating. Otherwise it is really difficult to explain this career that is like the protagonist of a novel. Hey, we can be roughly considered to be of the same generation, so theres no need to be so polite. Just call me Yang Gong, or just call me by my name. ?Yang Wei waved his hand and replied. From his point of view, he naturally felt that Chang Haonan was just giving a casual compliment. After all, although he has been involved in several key models and has been promoted very quickly, his status as deputy model chief engineer should not be well-known within the aviation industry. ?If you really want to talk about it, he is probably not as famous as Chang Haonan, who was the first person to complete advanced technological achievements three times in half a year. Mainly because this efficiency is a bit exaggerated. There was even some gossip about whether this person might be Du Yishan''s illegitimate son.??? ??The routine polite process did not last long, and the topic of the group of people quickly returned to the fighter jet in front of them. Although we have never met before, your integrated internal and external design method, as well as some simulation and computer-aided design ideas, have actually been of great help to us. ??Yang Wei took Chang Haonan to the computer next to the plane. ?The above shows the CFD simulation results at the entrance of the J-10 air inlet under certain operating conditions. I think the calculations Yang Gong is doing should have already been studied in this area. Sharp-eyed Chang Haonan noticed that in this model, the six connections between the air inlet and the body have shown different angles. The prototype aircraft that is about to complete final assembly is still the original design. In other words, Yang Wei has noticed that the six ribs, which were originally used for structural reinforcement, can actually play a role in rectifying and pulling vortices, further reducing intake buffeting and ensuring stable air intake under harsh conditions. sex. And has begun to carry out corresponding optimization design. ? Its just that he cant predict the future after all, so he obviously needs to be more conservative when it comes to changing the design of the prototype. ?Especially because this is the icing on the cake, the priority must be lower than the node of ensuring the first flight. ? ? Together with other improvements proposed during the test flight process, it will be better to wait until the No. 03 prototype is manufactured (02 is a static verification machine and will not be used for test flights). This is the trend of the future after all. ?Yang Wei nodded and admitted: But your paper did give me a lot of inspiration, otherwise the calculation results would not go so smoothly. Its a pity that the No. 10 project was established relatively early, and most of the design materials are in paper form. If you want to fully realize digital design and manufacturing, you have to wait for the next model. In fact, both the J-8C and J-7F, which Chang Haonan personally handled, can be regarded as half-way computer-aided designs. Although they have produced very significant results, they are not as transparent as projects started from scratch. It doesnt matter, just think of it as accumulating experience first, and then consider digital design from scratch when designing the J-10S later. J-10S, also known as the two-seater version, in the original timeline, was the first model for Yang Wei to take the lead as the chief engineer. Actually, we are already trying to design the two-seater model at the same time, but due to the limited size of the design team, the progress is still slower. ?Yang Wei nodded: "But if you can join in later, the work in this area should be faster." Chang Haonan did not answer directly this time, but quietly looked at the No. 01 prototype, which was about 70 to 80% completed, and mentally summarized the changes he planned to make later. ?In addition to replacing the DSI air inlet, the most important thing is to replace the domestic turbofan power and realize full digital control on this basis. The second step is to upgrade the surge monitoring and control module in the flight control As a single-engine fighter, the J-10 has higher requirements for engine stability, and the demand for this capability is also the most urgent. Finally, there are some details. In the previous J-10, there were many things that were not fatal, but were still a pity. He planned to improve them all. When will the final assembly of this No. 01 prototype be completed? ?Chang Haonan asked Yang Wei next to him. For a brand-new aircraft with more than 60% new technology application, it is naturally impossible to start test flights immediately after final assembly. There is still a lot of ground testing to be carried out. All the plans mentioned above, in addition to verifying relevant technologies in advance, must rely on these test results to be carried out. It can be said that there is nothing more he can do before the prototype rolls off the assembly line. If everything goes well, it will be between April and May this year. ??Yang Wei gave the timetable almost without thinking. (End of this chapter) Chapter 195 International bad guy Chapter 195: International Traitor According to Chang Haonan''s understanding, Project No. 10 did not encounter any major setbacks during the final assembly stage of the prototype. Hence the timetable provided by Yang Wei should be accurate. The expected completion time of the J-7F prototype happens to be in May. As an improved version of a mature model, the J-7F does not require particularly complicated ground preparations and can be ready for test flight soon. So he quickly made arrangements in his mind for his itinerary after the Spring Festival. Go back to school first to deal with graduation matters, take a short break, and then go back to 611 in April and May to collect data and continue to promote research on surge prediction theory. Perfect. After satisfying his desire to see the J-10 and getting the information he wanted, Chang Haonan did not stay for too long. He checked the progress of the two J-7Fs before leaving Factory 132. For the final assembly stage of the prototype, he is an additional existence that plays no role. Staying in the workshop for a long time will only affect the work efficiency of others. By the way, Mr. Lu. The two of them got on the JB121, which had air leakage from all sides. When they were about to walk out of the factory gate, Chang Haonan suddenly had an idea and asked Lu Yuying next to him: Factory 132, or any of our 611 places that dont sell any cultural and creative products? Since Chang Jiayao wants to be a pilot, it seems that she can get an aircraft model produced by the aviation industry as a gift to her. What are cultural and creative products? Obviously this concept had not yet emerged in the 1990s. So Lu Yuying asked with a confused look on his face. ?However, he still motioned to the driver to pull over to the side of the road and stop. Well they are cultural and creative products, some gadgets related to our business, such as bookmarks, water cups, stationery, and aircraft models produced by aircraft manufacturers, etc. with the logo of our aviation industry. Chang Haonan, who was sitting in the back seat, explained it in as simple and understandable a language as possible. Wellwe probably dont have any business in this area Chang Haonan understood it after thinking about it for a while. In this era, most people are still struggling to make ends meet, and the military fan group is relatively weak in both quantity and purchasing power. Naturally, the aviation industry system cannot think of such a revenue-generating business. Furthermore, model culture has not yet developed much. In the eyes of many people, this thing should only be played by children. ?However, after a little thought, Lu Yuying came up with a solution: If you really want it, you can ask a worker to make one for you. Anyway, everyone is familiar with those types of aircraft, so it shouldnt take long. Models like the wind tunnel are also made in the factory. Thats okay, the comrades workers are already busy enough during this period, so we wont cause them any extra trouble. Lets go back first. The car started up again and drove slowly towards the 611 office. The reason why Chang Haonan chose to refuse was only for one reason. The more important reason was that before he was reborn, he had seen those white metal molds used in wind tunnels. The restoration and craftsmanship were very good, but they were completely the original color of metal. , the beauty is average. ??And places like the edges of the wings are as sharp as blades and can be easily cut. It seems that I have to think about whether I can buy other gifts. ?At this time, the driver who had been driving silently spoke: Chang Gong, in fact, this kind of thing should be sold in your capital city. In many cases, origin is not determined by where ones hometown is, but by where one works, or where ones organizational connections are. As a person from Beijing University of Aeronautics and Astronautics, Chang Haonan is naturally considered to be someone sent from Beijing. The capital? "Yes, I have driven a car for a visiting foreign delegation before, and I heard from the receptionist at the Aviation Technology Group that there is a shop specializing in souvenirs at the Beijing headquarters. If you are interested, you can go and have a look." The driver replied. "I see." This is a direction that Chang Haonan has never thought of before. He originally planned to go home directly from Rongcheng, but it seemed that he could also go back to school on the way. ??Anyway, he doesnt need to pay for the travel expenses himself, and there is an apartment over there that although he has no property rights, it is considered his. Since I got the key, I have only lived here for less than ten days in total. The novelty has not worn off yet. By the way, that store shouldnt be open to the public only, right? Chang Haonan remembered that some of the literary works he had read seemed to have settings similar to foreign-related shops. The kind that only accepts foreign currency and is not open to locals. ??As a result, he received a blank look from Lu Yuying: Even people my age know that the special retail business disappeared last year. How come... "Well" Chang Haonan, who was a little embarrassed, raised his hand and touched his nose: I have been busy studying in the past few years. I have never been out of school, so I dont know much about these things. ?The actual reason is of course that he has not been reborn last year, and he has never been to that kind of super large shopping mall in his previous life. Thats right, otherwise you wouldnt be able to learn so much. Lu Yuying immediately believed this statement: Its God who rewards those who work hard! ?The sigh made Chang Haonan feel a little embarrassed. ?Chang Haonan flew back to the capital on the next day''s flight. The first thing I do after I get home is to clean the house that I havent lived in for several months. ?The body of a young man is indeed different. Twenty years later, after such a flight, he would definitely be so tired that he would fall asleep after returning home. How could he still have such abundant energy??????Then... Since I have been away for such a long time, there is no way there will be anything to eat at home. ? And its getting late now. In the 1990s, the service industry had just gotten rid of the slogan Dont beat customers, so there werent many shopping malls open late at night. At least Chang Haonan didnt know where to find one near the school. So I still have to go to the cafeteria for dinner. Since it is already winter vacation, most students have left school and gone home, so the cafeteria has also closed for dine-in meals, leaving only a window to take care of those students who stay in school for various reasons, as well as the very few who have no home. The teacher is a hard-working teacher who cant cook. The result is that the queue length here is no less than usual... ifier ?Chang Haonan looked at the people in the team and realized that he didn''t bring a lunch box. ?Thinking about the hundreds of thousands of dollars in his bankbook, he finally decided not to go back and spend five cents to buy a disposable lunch box. Then he met a fat man with curly hair here. A lunch box. The latter handed over the dime coin in his hand. Old Wu? ?Chang Haonan silently took back the five cents he had taken out. Brother Nan? ?Wu Yifan turned around, also looking shocked. After a few seconds, he turned his head back again: Two lunch boxes. ?Ten minutes later, the two people carrying the food left the canteen together. Would you like to go to my place and eat together? The two people who have a good relationship haven''t seen each other for more than half a year, and they really have a lot to talk about. But Chang Haonan is going to buy gifts for his family tomorrow. This kind of thing will most likely take a whole day in 1997. It still doesnt work. I have to get up early tomorrow and prepare to go back and have an early rest. Chang Haonan shook his head as he walked: By the way, Lao Wu, do you know how to get to AVIC International Building by bus? "Where is that?" ??Wu Yifan, a person who is not prepared to engage in his own profession, is naturally confused. Well, its just... I got stuck mid-sentence. AVIC International Building is near the Bird''s Nest. But the Olympic bid has not been successful yet, and there is no Bird''s Nest at all. ?Other than that, Chang Haonan didnt know any other landmark buildings around itthe first time he went there was in 2007. ?Wu Yifan who saw this scene probably understood: Forget it, do you know the approximate location? In Chaoyang District, outside the North Fourth Ring Road, which is currently under construction. Thats fine, Ill send you there tomorrow. "You give" Chang Haonan was stunned: How do you send me off? "hey-hey" ??Wu Yifan showed a smile and pointed to a red car parked not far away: I got a car. After all, I am in my early twenties. Even if I can usually behave more diplomatically, I will still show some emotions in front of my best friends. It''s a kind of showing off, but it''s obviously not malicious. "ah?" ?Chang Haonan knew in his previous life that Wu Yifan made his first pot of gold in his last school year. But I didnt expect the barrel to be so big. You must know that the price of a car in the 1990s was even higher than that of more than 20 years later, often costing hundreds of thousands or even hundreds of thousands, not to mention the converted purchasing power. Even low-end Korean cars like Hyundai and Daewoo are worth a house in Beijing, let alone models like Audi, BMW, and Buick. The two of them walked to the car. It is square and square, and looks pretty good. Not bad, Lao Wu, this car is quite beautiful, what brand is it? Lada 2107 is a Lao Maozi car. I received it directly from them. It cost less than 50,000 yuan. I originally wanted to sell it, but in the end I didnt want to part with it and kept it for myself. Speaking of his favorite car, Wu Yifan is obviously very interested. I fuck Comparing to the car in front of him, what Wu Yifan just said shocked him even more: Are you a cheater? (End of this chapter) Chapter 196 Want me to write teaching materials? Chapter 196 Want me to write textbooks? International prostitution, a special industry that lasted throughout the 1990s. ?High risk and high reward, wandering on the edge of the law and even life and death, but you can often make a lot of money for one vote. In his last life, Chang Haonan also chatted with Wu Yifan about what he was doing in the first place, but at that time the latter only said that he was doing some second-level dealer work. now think of it It really cant be considered a lie. It is true that I am also a second-rate dealer. Its just that he didnt expect that the other party could play such a big role. Ahem ??Wu Yifan opened the car door, tied the plastic bag containing the lunch box and placed it on the passenger seat: This statement is not very accurate. We are qualified and have followed formal customs declaration procedures and paid taxes, so we should be called cross-border traders. Okay, cross-border trade merchant, what exactly do you do for cross-border trade? For Chang Haonan, it doesn''t matter how he is called, even if he is not really qualified. The role played by the gangster group before the 21st century was generally positive, both for us and Maos side. There are a lot of them. The exports are mainly food, daily necessities, clothes, shoes and socks, and wine. The imports are generally heavy industrial products such as machine tools and automobiles, as well as aircraft parts and speedboats. Airplane parts? ?Chang Haonan found it hard to imagine that this classmate who was doing major homework with him more than half a year ago had already started reselling airplanes. Of course, on the other hand, it would be hard for Old Wu to imagine that the classmate who led him to do his homework more than half a year ago has already begun to design a real aircraft... We all have a bright future. "Yes, but my partner is responsible for such big things. He is very courageous and has strong connections. I just want to make a small profit. Otherwise, I would have driven a Mercedes instead of using a Lada." Thats it ?Chang Haonan nodded. ??It is indeed reasonable. Wu Yifan is very capable but has an average background. I am afraid it will be difficult to grow big in such a short time by working alone. In other words, do you have anything suitable as a gift for the older generation? After all, this is the first time in my life to see my family, so I should buy some rare things if I dont have any shortage of money. Then it depends on who you are going to give it to, Academician Du? No, no, no. Chang Haonan quickly denied it, and then explained: Send it to my parents. If you want to give it to your parents, you should be there soon. Let me think about it... ?Wu Yifan, who was already in the car, raised his head slightly and tapped the steering wheel with one finger. ?Seeing that he failed to give an answer for a long time, Chang Haonan realized that Lao Wu should be thinking based on his past economic conditions. The price is easy to negotiate, so we dont have to be so strict. ??Wu Yifan glanced out of the car window in surprise, his expression probably similar to when Chang Haonan saw the car just now. In this case, I have a Rocket watch, the brand Gagarin wore when he went to heaven, and a pen, which is an imitation of the Parker 51, but the workmanship is very good. Okay, how much is it? Give me a total of 200 yuan. No problem, can you bring it to me tomorrow? ?This price is not expensive by any means. A watch and a gold pen, even if they are domestic brands, cost about three to four hundred. I will pick you up at the school gate at nine oclock tomorrow morning and take you to the AVIC International Building. I will give it to you when the time comes. After saying goodbye to Lao Wu, Chang Haonan carried the already a little cold meal and prepared to go home. The faculty and staff residential area is actually built together with the former dormitory area. It is currently only the first phase of the project, and the old-fashioned tube buildings will gradually be replaced by apartments in the future. Therefore, most of the people living in the whole place are faculty and staff of Beijing Hang University. Now that the New Year is approaching, there will be more and more people. ?Chang Haonan met an acquaintance as he was approaching the gate. Classmate Xiao Chang! Classmate Xiao Chang! ?Because the voice was a bit unfamiliar and he was wearing a cotton hat covering his ears to protect himself from the cold, he didn''t realize that someone was calling him until the second call. Dean Tang? ??The visitor is none other than Tang Lintian, the dean of the School of Aeronautical Science and Engineering at Beijing Hang University. Chang Haonan had only met him twice before, during the final group meeting and postgraduate interview. ??However, first of all, Tang Lintian looks quite distinctive, and secondly, the unit building where he lives now was specially arranged by the other party, so he left a deep impression on him. Its already this time, havent you gone home yet? After all, Tang Lintian has been a leader for a long time, and he is very skillful in asking questions from the beginning. When he said going home, he naturally did not mean going back to his residence, but his hometown. Obviously, although he is the dean of the college, Tang Lintian is not someone inside the aviation industry system, and he is not very clear about Chang Haonan''s specific whereabouts in the past six months. Im going back soon. I have been working on projects in Haojing, and I just recently completed the tasks planned years ago. Chang Haonans external cover has always been that he is participating in MA-60 and related airworthiness verification projects. This may well explain his absence from school for long periods of time. Even better, because I was previously responsible for the development of aircraft anti-icing systems and the compilation of airworthiness certification standards in Nanzheng, 603 Institute actually sent a vague letter of thanks to Jinghang University. He immediately confirmed the content of his work. Mr. Du values ??you very much. Tang Lintian stopped and turned around to look at Chang Haonan, who was half a head taller than him. He couldn''t tell whether it was expectation or envy in his eyes: Work hard, the future of the aviation industry is yours. The current conditions are much better than what we had back then! At this time, it is natural to cooperate with the leaders statement: Dont worry, Dean, I will work hard. The two of them started walking side by side towards the inside of the community. Xiao Chang, there are two more things that I have to tell you on behalf of the college. ?Tang Lintian''s tone became slightly more solemn. "You say." First of all, in November last year, the college confirmed that you were the recipient of this years Science and Technology Committee scholarship. The certificate and 1,000 yuan bonus are all with me. I will give them to you tomorrow. Thank you to the college for recognizing my achievements. Of course, it was impossible for Chang Haonan to cheer for such a thing now, so he was just polite. And according to his intuition, that was definitely not the point. Sure enough, Tang Lintian continued: The second thing is more important. The college is planning to open a new course for graduate students entering next year, which is your class, to introduce the application of finite element ideas in aircraft structure design. This is the first course of its kind in universities across the country, and it will involve a lot of software and programming content. "this" ?Chang Haonan really wanted to ask himself if he didn''t have to take this course, but he didn''t know how to ask. ?However, the other persons next words were completely beyond his expectation: So for the sake of the college, I hope you, Xiao Chang, can write the last two units of this textbook. Chang Haonan stopped and looked at Tang Lintian beside him stiffly: "I?" Compile teaching materials? (End of this chapter) Chapter 197 Write your own textbooks Chapter 197: Write your own textbooks Yes, after discussion with the academy, we unanimously believe that you are the most suitable and qualified person to write this part of the content. ?Tang Lintian replied with a matter-of-fact expression: The related fields of computational fluid dynamics and computational structural mechanics are still relatively new topics in China. Although various research institutes and universities are spontaneously carrying out research in this area, from the perspective of talent training, relying solely on This format is clearly not enough." "If we want to develop the aviation industry, our education must keep up with the development trends of the times and add systematic courses to the training programs for graduate students and even undergraduate students. What you said at that group meeting was very good. , many students and even teachers have reported that they want you to give lectures directly. ?This sentence frightened Chang Haonan quite a bit. He had already packed his timetable so much that he would definitely not have the energy or time to go to class, at least in a short period of time. "Dean Tang, this is not possible. I will only be a doctoral student after I enter school next year. How can I be qualified to take classes? Besides, the MA-60 project is now in the most critical period of obtaining airworthiness certification, and I cannot abandon Hao Jing. Theres work over there. "Don''t be anxious. It is precisely because of your actual situation that I advocate letting you directly participate in the preparation of teaching materials, so that you don''t have to worry about running in both directions." Obviously, Tang Lintian understands the window opening theory ??If you feel that the room is too dark and you need to open a window, you will definitely not be allowed to do so. But if you advocate removing the roof, they will mediate and be willing to open the windows. But Dean Tang, I think this kind of applied courses may not actually require textbooks in the traditional sense, right? The two of them walked slowly towards the community again. Before his rebirth, Chang Haonan often took care of new graduates. According to their general feedback, the teaching of this kind of thing is basically based on practical operations, and the teacher can at most give out printed handouts. "Regarding this issue, we have also asked computer science teachers, and the opinions they gave are similar to what you just said. If we talk about applied things now, it may be completely different by the time students graduate, so many teachers No textbooks are needed at all. The matter of adding new courses and compiling teaching materials is obviously not a whim of one person. Tang Lintian has already considered the issues raised by Chang Haonan: Its just that the college still feels that our situation is still different from that of the computer side. "The Internet industry has developed rapidly in recent years, and communication at home and abroad is relatively smooth. I don''t mean to look down on anyone, but I think that in their industry, only a very small number of people should be responsible for basic low-level research, and most people should They only need to complete very superficial work step by step without knowing the reason. "Our situation is different. The aviation industry is generally quite closed, especially in the past few months. I don''t know what happened. The Science and Technology Commission suddenly started to spread rumors without warning, saying that we would establish our own aviation industry. Industrial standards have stopped many projects to convert American standard documents. Ahem Being cueed off guard, Chang Haonan almost choked on his own saliva. Tang Lintian, who didnt know the inside story, didnt care and continued to explain: "In short, this is certainly a good thing in the long run, but for our graduates, each of them may have to participate in the task of laying the foundation. As a university, at least at the level of graduate education, we cannot be satisfied with To only train some operators, you still need to focus on some theoretical aspects, and what I want you to complete is the basic part of computational fluid dynamics. Xiao Chang, you must not hide your secrets at this time. The last sentence was naturally said in a half-joking tone, with a hint of excitement. After Tang Lintian finished speaking, he turned his head and looked at Chang Haonan again, waiting for the latter''s answer. He knew that he should not be rejected. ??If the other party was really stingy, there wouldn''t be that group meeting that caused a commotion in half the college. In fact, this is indeed the case. Although this is a somewhat troublesome task, Chang Haonan is ready to take on the next step. Tang Lintian obviously has a very long-term vision. This course and this textbook are also beneficial to achieving the goals that Chang Haonan set for himself after his rebirth.????????????????????????????????????????? ????????????? Although it will be painful when you are in school, it will definitely benefit you throughout your life after entering the workplace. As for why there was no such course in the previous life... Perhaps its because I couldnt find a suitable author. But before agreeing, there are still some details that need to be confirmed: So the basics are put at the end? Chang Haonan still remembers that Tang Lintian said at the beginning that he would write the "last two chapters". Perhaps because he didnt expect that the other partys focus would be here, Tang Lintian was stunned for a moment, and then nodded: The first version is expected to be like this, and the course sequence can be flexibly adjusted by then. On the one hand, if the postgraduate courses start smoothly, our plan is to use the same textbook in undergraduate courses. However, undergraduate courses will definitely focus on application, so there will still be some relatively simple content in the front. On the other hand, we are also a little worried that what you write is too difficult. Putting it at the front of the textbook will make students fearful of difficulty, and..." ?Tang Lintian touched his head awkwardly: And we have to consider the passing rate after all. If everyone really doesnt understand, we can temporarily exclude the last two chapters from the exam, but we cant ignore the first content, right? You are really thoughtful This reason also amused Chang Haonan. ??But it is reasonable. Its the first time, so its inevitable that we dont care about the severity. In case of 70%of the subjects, students and colleges cannot be affected. It is said that in later generations of schools, if the failure rate is too high, they will take the root sign of the students'' scores and then multiply them by 10 to make the results look better (36 points is enough to pass, 100 points is still 100) , I dont know if its true or not Theres no way, its all lessons learned from the past ?Tang Lintian shook his head with emotion, obviously having lingering fears about something. Are there any specific requirements for the content of these two units? No, you have to believe in yourself. In this field, let alone our school, I believe that no one in the country dares to say that it is more authoritative than you! Tang Lintian, who was originally asking for help, waved his hand and directly gave Chang Haonan the greatest degree of freedom: As long as the topics are computational fluid dynamics and computational structural mechanics, you can do whatever you want with the rest. So, what do you think about it? Having said all that, Chang Haonan has nothing to worry about. He took a long breath and watched the long white breath rising slowly under the dim light: Okay, Ill take care of this part. (End of this chapter) Chapter 198 queens fleet Chapter 198 The Queens Fleet After agreeing to the invitation to co-write textbooks, Tang Lintian took out a ballpoint pen and a notebook from the inner pocket of his cotton-padded coat, wrote something on it, and then tore off the page: This is my pager number, as well as my home and office phone numbers. If you have anything you want to ask, you can contact me at any time. ?Chang Haonan subconsciously wanted to give the other party his contact information. Then I realized that I didnt have one at all So I had to take the note, fold it and put it in my pocket: Okay, Dean Tang, I will contact you if I have any questions. At the same time, Chang Haonan got the opportunity to write a book for the first time in his life. ?Permanent Joint Headquarters, Northwood, Kent, UK. ??A man in the uniform of a rear admiral knocked on the door of the office of Jock Slater, the First Sea Lord and Chief of the Royal Naval Staff. Sir Jock, are you looking for me? Yes, Alan, sit down first. Jock stood up, took out a bottle of wine from the cabinet next to him, and poured half a glass for himself and the visitor. ??Although there is a big gap in official ranks between the two, they both come from naval families, and their families are familiar with each other, so there is not a strong sense of alienation. Its 1997 now. ?This seemingly unreasonable sentence made Alan West, who had just received the wine glass, a little confused: Wellactually, its already the second month of 1997. Obviously, he had no intention of getting to his superiors. Jiao Ke, who was speechless, had to choose a more straightforward way of expression: If nothing else happens, the United Kingdom will lose another piece of land this year. You mean...Hong Kong Island? ?This time West understood, but not completely: But wasnt that something that Mrs. Thatcher decided on more than ten years ago? Thats true, but things are changing after all. ??Jock held the wine glass and sat back behind the desk gracefully. ??Although the other party still didnt guess the point of the conversation, at least he got on the right track: Prime Minister Major is asking us to do something before it becomes irreversible. "this" The people in the West were dumbfounded when they heard this sentence, and the wine glasses they raised to their lips also stopped in mid-air: "what can we do?" Such as sending out a fleet. ??West''s hand shook and he almost spilled the wine in the glass. ?For a moment he thought that at least one of himself, Sir Jock, and the Prime Minister had gone mad. After about a few minutes, the rear admiral regained full language skills: Thisthis is crazy. With all due respect, Sir, we are all nuclear countries, and China is not Argentina. At least they have much more missiles. After saying this, West added in his heart: And even without missiles, we cant survive just iron bombs. In 1982, he was serving as the captain of the frigate Enthusiasm. ??In that war, the Zeal was hit by five 1,000-pound MK17 unguided bombs by Afghan attack aircraft penetrating at low altitude. ??If it werent for the fuse setting problem that caused only two explosions, Im afraid it would be a different person sitting here today. "Of course I know this, so I never said I would send a fleet to go to war." ??Jock shook his head and drank all the liquid in the cup: The Conservative Party is in a very bad situation now. If nothing is done to save support, it may fail soon. So he hopes he can be tougher on this matter. "Why don''t you just find an excuse to delay it? Can''t the cabinet secretary even do this now?" West said with some disapproval: Isnt that how they coldly treated our request for more funding? Actually, there is another reason. Jock, who was pushed back, also realized that the reason he gave was indeed not very convincing. After hesitating for a moment, he continued: Some members of the royal family also hope to use this to divert public attention. Britain needs a publicity victory to suppress the public opinion storm caused by the prince and princess. Theoretically, the royal family under a constitutional monarchy should be just a mascot. But this is obviously not the case. Propaganda victory ? ? West picked up his glass again and added an accent to the word "promotion", and then imitated the tone of a character in a certain TV series and said a famous line: ItistomakepeopleBELIEVEBritainisdefended? Obviously, he has gradually caught up with the rhythm. Thats right, so we dont need to get close to the coastline. We just need to drive the fleet over, show force at a place beyond their reach, and then return. ??Jock gently fiddled with the globe on the table as he spoke: You know, if the Chinese navy wants to go to the ocean, it will take at least several months to prepare, so it is impossible to react. But if the distance is too far, wouldnt there be no threat at all? They dont have to deal with it at all. ?? West is still a bit confused about the specific plans. The admiral stood up again and came to a huge world map posted on the wall: "Regarding this, the Pentagon will exert some influence and arrange for Annan''s army to conduct joint exercises with us. The location...it will be placed here." ?His finger pointed to a place not far from the coastline of Annan Kingdom: The ownership of this sea area is controversial. Annan has always hoped to develop the deep-sea oil and gas fields nearby, so it approached BP. So we have to go over and support them? ??West also came to the front of the map. Its no big deal, lets each take what he needs. ??Jock turned around and looked at West next to him: We can kill two birds with one stone. We can not only help BP win this project, but also disgust the Chinese people and give an explanation to the royal family and the Prime Minister. With our support, Annan will be more confident. Anyway, the exercise area is nearly 900 miles away from their Qiongzhou. According to intelligence, the Chinese have no sea and air power worth mentioning in this direction. At most, they can dispatch some old-fashioned frigates or speedboats without any risk. So, you are going to let me lead this fleet? By now, West could guess the purpose of calling him here. Faced with this question, Jock did not answer directly, but changed the subject: Alain, if I remember correctly, you have been serving as rear admiral for five years, right? ??West''s eyes suddenly lit up. ?This naked statement can no longer be regarded as a hint ??As long as you can complete this unchallenging task, promotion to an official position is just around the corner. So, has the specific composition of the fleet been determined? Obviously, he has accepted this mission by default. Not yet, what do you think? On professional issues, Jock decided to consult the frontline commanders for their opinions. Since we want to influence public opinion, the size of the fleet must be large, otherwise the impact will not be enough. ? West immediately began to analyze: "We must have an aircraft carrier. If we want to set off soon, the Excellence should be in a seaworthy condition. The Sea Harrier aircraft performed very well last time. Its performance is not inferior to Annan''s MiG-21, so we can take the opportunity to promote it. " "Type 42 destroyers have a mediocre reputation, but they show cowardice when carrying them. They can be replaced by Type 22 frigates, Beaver, Cornwall and Campbelltown. Although they are frigates, their displacement is 4,900 tons, which is larger than all Chinese combat ships. Its completely possible to suppress them. "Although we will not really do anything to Hong Kong Island, we still need to make a sufficient posture. We will incorporate the Dreadnought dock landing ship, and then bring a few medium-sized landing ships and marines, and follow the instructions for landing on the Falkland Islands. With scale preparation, the cost of using these ships is very low, and they can also increase the size of the fleet, which is very cost-effective. There are also supply ships. The newly commissioned Victoria Fort should be able to perform tasks..." ? West''s business level is really nothing to say. He almost arranged a fleet that considered all aspects carefully on the spot. Since it is just a fleet cruise with no actual risks, it is natural to make the Royal Navy look more majestic. ??It would be nice to clear the air from the 1982 loss. (End of this chapter) Chapter 199 Superior soft sleeper Chapter 199 Senior Soft Sleeper After hearing the specific plans for the fleet, Admiral Jock Slater nodded with satisfaction. As the de facto supreme commander of the Royal Navy (the nominal commander of the Royal Navy is the Queen or the King), he certainly hopes that the fleet he sends out will be well-organized and sail thousands of miles, so that the world can once again see the shadow of the empire on which the sun never sets. . But the reality requires that he must consider the cost of this operation and cannot make it difficult for the Secretary of Defense to do so in the House of Commons. Even if the Conservative Party looks like it wont be able to bounce back for a few months, ? Wests deployment happened to be able to satisfy his boss and, of course, the vanity of the royal family while keeping the operational budget at a relatively low level. No media would waste space listing every ship in the fleet. In fact, those reporters may not even know the difference between different types of destroyers and frigates. So the report will only say "a huge fleet of more than 30 ships, including the aircraft carrier HMS Excellence, HMS Beaver, frigates HMS Cornwall and HMS Campbelltown, and the landing ship HMS Dreadnought..." ?Hence, both lizi and face are obtained. There is nothing wrong with your arrangement in general, but we cannot make a decision yet on which warships to send out. Alan, write a written plan to me as soon as possible after you return. ? Slater returned to the desk, took out a newspaper dated December 31, 1996 from the drawer and handed it to West: "Be careful not to have too obvious tendencies in the conclusion. At the beginning, just emphasize the effect of naval operations on improving public morale and support. You can refer to Thatcher''s example and previous opinion polls conducted by the Guardian. The result is this." The latter took the newspaper and found a shocking headline written on it: "This is the final chapter of the British Empire". Obviously, for a media like the Guardian whose position is leaning towards the opposition party, it is definitely not too big a deal to watch the excitement. "In addition, remember to add a chapter in the middle of the text to explain the possible risks of this operation and remind decision-makers to consider it carefully. I suggest you sandwich this content between the specific equipment list carried by the fleet and the personnel composition. The middle part? ? West, who had not yet moved his attention away from the report, was stunned: But generally speaking, the format Before he finished speaking, he was interrupted by Jock waving his hand: "This part must be added, otherwise if something happens then, they will put all the responsibility on our Royal Navy. But if it is placed in too conspicuous place, I am worried that the minister will look forward and backward again, just in case of equipment The lists and personnel lists are all filled with tables and figures, and the minister will never look at them, so it is safest to be caught between them. After explaining, he looked to the opposite side meaningfully: "understood?" ? West thought for a moment, then nodded with surprise. ?Just at that moment, he suddenly figured out something - From the beginning, Jock said a lot of things that had little to do with the military field, and also put himself directly responsible for writing the action plan submitted to the Secretary of Defense. He obviously meant to support him. As for why you choose yourself... In addition to the close relationship between the two families, it is probably also because they are half a generation apart in age. ??The Admirals second son is currently serving as the captain of the Type 23 frigate HMS Somerset. The Type 23 is mainly used for anti-submarine warfare and its tonnage is not as good as the older Type 22. Some of its weapon systems are not yet stable, so West just considered it purely from a business perspective and did not intend to take any of this model into consideration. ?But now I need to change my mind. He is used to the straight-forward style within the army, but he is not really stupid, otherwise he would not be able to get the position of rear admiral. Some things are more appropriate for me as a subordinate and fleet commander to raise. Got it, Sir Jock. ?? West folded the newspaper in his hand and tucked it under his arm, then put on his military cap again: The plan can be completed within a week, and I will consider the fleet list for this mission in detail. The plan just now seems to lack some cutting-edge combat forces that represent the future of the Royal Navy. The two of them showed a tacit smile at the same time. You go and do your work, Im going to Westminster. ?Chang Haonan encountered a big or small trouble. He forgot how terrible the Spring Festival Transport, especially the Spring Festival Transport in the 1990s, was. As a prefecture-level city, Liucheng certainly has an airport, but the scale is too small, and the economy is not very developed, so few airlines choose to open routes here. At the beginning of the 21st century, due to airworthiness issues, Sanyan Airport was suspended for a period of time. In 1997, although the association was still nominally responsible for civil aviation business, there were only two flights per week, one to Beijing and one to Shanghai. Unfortunately, the next flight is on New Year''s Eve. Unable to wait, Chang Haonan finally decided to buy a sleeper ticket and go home. Compared with hard seats, the environment of sleeper carriages is better because the density of people is lower, so theft is not so rampant. Of course, its just that its better and more limited. ??However, there is no 12306 these days. Chang Haonan only remembers that the railway system operated a telephone booking system, but as a reborn person, he had long forgotten the long series of numbers, and secondly, there was no phone installed in his home. Had no choice but to give up. "well" Chang Haonan looked at the calendar on the wall, and while sorting out the gifts he just bought from Lao Wu and AVIC International Building today, he lamented that he had been so busy in the past six months that he had almost lost his common sense in life, and he also comforted himself by the way - There are probably not many people who can afford sleeper tickets these days. Even during the Spring Festival travel season, there should not be no car to ride on. ?At this moment, there was a sudden knock on the apartment door. Opening the door, Tang Lintian was standing outside. Dean Tang? ?Chang Haonan was a little surprised to see the person coming. After all, it is a house allocated by the school, so it is normal for the dean to know everyone''s address. But after all, we only met last night. The relationship between the two of them seems to have not reached the level of casually visiting each other to have a meal when it is almost time for dinner. ?However, he quickly invited Tang Lintian in and poured two more glasses of water. Youre here, and Im not prepared at all It doesnt matter, I just represent the college to express my condolences to our young researchers. The two sat down on the sofa and chatted about some issues related to the textbook. But Chang Haonan was very sure that Tang Lintian did not come here specifically to discuss academic matters. Sure enough, after a certain small question was over, the latter changed the topic without any trace: Xiao Chang, I remember you are from Liucheng? Thats right, a county town below Liucheng. Tang Lintian obviously couldn''t remember it, but went to check the student information. Otherwise, he would have mentioned it yesterday if he had something to do. ?Of course Chang Haonan would not expose this kind of thing. ?However, the other partys next question was beyond his expectation: Have you bought your train ticket home? "Uh...not yet. I''m going to buy it tomorrow and take the sleeper home." A guess gradually formed in Chang Haonans mind ?Is it possible that someone just gave me a pillow when I fell asleep? ??Tang Lintian did not disappoint him. He turned around and took out a ticket from his bag. ?Cardboard tickets full of period characteristics, but the shape and color are slightly different from common ones. Considering your situation, the college has arranged a high-end soft sleeper ticket for you. Tonights train does not go directly to Liucheng, so we bought it for Jinxi, which is next to Liucheng. Chang Haonan has seen a lot, but when he saw this ticket, he couldn''t help but feel a little shaken in his heart. He has heard about high-end soft sleepers. The kind with only two bunks in a private room. ? Expensive is the second priority. In the 1990s, even if you had money, you might not be able to buy this ticket. In the same train, the environments of premium soft sleepers and hard seats are basically two different worlds. Intellectually speaking, he knew very well that Tang Lintian was trying to win over him on behalf of the academy. After all, the other party didn''t hide it either. From this apartment building, which is nominally a dormitory, but he can automatically get the property rights as long as he obtains faculty status, to the book he talked about yesterday, it is enough for him to leave a mark in the education world. The teaching materials and gestures have been very adequate. ?However, it must be admitted that this ticket was indeed sent to Chang Haonan''s heart. Thank you, Dean Tang. You really helped me solve a big problem. Our county happens to be closer to Jinxi. There was no need to be pretentious. He took the ticket directly and thanked him solemnly. It doesnt matter, you are a very valuable asset to our college, and it is our responsibility as administrators to provide a comfortable and safe environment for talents like you. ??Tang Lintian stood up and spoke in a clear and concise manner: "Okay, the ticket has been delivered to you, so I won''t stay any longer. You can also have a good rest. There is no need to go out to deliver it." ??Despite what he said, Chang Haonan still sent the person to the entrance of the corridor. When you succeed, you will find that you are surrounded by good people. When he returned home, he looked at the premium soft sleeper ticket in his hand, and for the first time he had a profound understanding of this sentence. In his previous life, Chang Haonan studied for a Ph.D. in Beijing Airlines and stayed there for a total of 12 years. In fact, he did not have a deep impression of Dean Tang. Basically, they were two people who lived in the same space but had no intersection at all. Including the entire college level, there is actually no sense of existence. ?Mediocre, ordinary, fulfilling the obligation to educate a student, there is nothing to criticize. ?Originally, a doctorate degree looks rare outside, but it is just like that in universities, especially universities at the level of Beijing Airlines. ??But throughout his life, both the college and the dean himself, as well as famous bosses such as Du Yishan, Yang Fenghao, Yan Zhongcheng, Lu Yuying, and Yang Wei, all showed extraordinary kindness and even love to him. There are many among them who had not received very good reviews before he was reborn. It''s not that they are different in this new timeline. But Chang Haonan himself has become different. (End of this chapter) Chapter 200 700MW hydropower unit Chapter 200 700 MW Hydropower Unit ?On the other side, Tang Lintian did not go home directly after leaving Chang Haonan''s residence, but went to his office in the college. He turned on the desk lamp, sat in front of the desk, and stared at a red-headed document on the table for a few seconds. The content is to require the School of Aeronautical Science and Engineering of Beijing University of Aeronautics and Astronautics to issue a resume about Chang Haonan, as well as a description of work and study status. ??If that were the case, it wouldn''t be enough for Tang Lintian to run to the office without even bothering to eat dinner when the Chinese New Year was approaching. What really concerned him was the title of the document: Communist Youth League ZY and National Youth Federation. These are two organizations that do not have a strong presence, but have actual influence, especially within universities. The document does not include the reason for making the above request, nor does it explain whether it is possible or whether the person needs to be notified. ??However, Tang Lintian knew that if a person could make the two parties jointly issue a document asking for file inspection, he would either be making a big mistake, or he would be preparing to take off from the same place. Considering Chang Haonans actual situation, the first possibility can almost be ignored. It was his own decision not to tell Chang Haonan about this for the time being. ?On the one hand, it is safer to do this. You can keep the news and wait until the future to inform you, but if you say it out, you can''t take it back. ?On the other hand, it can also make his previous solicitation behavior appear less utilitarian. I found a treasure... ?Tang Lintians hands trembled slightly. Even though it was not the first time he had seen the contents of the document, he still couldn''t restrain his excitement when he thought about the possible consequences of this incident. So much so that I took several deep breaths to calm down. Then I took out a pen and college paper and began to consider the words word for word. The situation statement needs to be written by him, the dean, and then reviewed by the D committee at both levels of the school. ?This job should not be difficult, just say whatever you want and it will be done. ??With the huge energy of the two departments, it is impossible to investigate the situation only from the Beijing Hang University side. Carrying out small actions is completely a suicide attempt. ?However, Chang Haonans situation is quite special. ?Judging from the file, his academic performance in the past few years has been good, but not particularly amazing. Other than that, there is nothing worth mentioning. The entries for winning entries, student work, etc. are all blank. Compared to the amazing abilities he has shown in the past year, his previous life experience seems a bit too ordinary. After thinking for a moment, Tang Lintian wrote eight words of high emotional intelligence on the scratch paper. Extensive knowledge and apprehension, accumulation and accumulation. This is the tone of today. Of course Chang Haonan did not know that Dean Tang was losing his hair in order to write a beautiful statement for him. After getting the train ticket, he quickly packed his things, took a taxi and went straight to the Beijing Railway Station. Senior soft sleeper tickets can use special waiting rooms and entrances, which also saves a lot of trouble. Needless to say about the situation before his rebirth, after his rebirth, Chang Haonan basically travels by plane. For a place like the waiting hall where people are mixed, even if he has the awareness of precautions, he may not have the ability to take precautions. In short, he arrived at the No. 16 premium soft sleeper carriage on the ticket and found his own sleeper compartment. There was already a middle-aged man sitting inside who was reading a newspaper. Hello, comrade. ?The other party folded the newspaper and placed it on the table, and moved his body slightly to the side to make a space for his luggage: "Hello." ?Chang Haonan put the two bags he brought with him into the suitcase. Since the toilet of the high-end soft sleeper is located inside the box and occupies a certain amount of space, only one sofa can be placed opposite a group of bunk beds. "My waist is not good. I need a place to lean on when I sit for a long time. How about I sit on the sofa and leave the lower bunk to you?" This man looks familiar. "no problem." ?Chang Haonan sat directly on the bed opposite. You look quite young at your age. I wonder which unit your young comrade is employed in? He is indeed a talkative person. Fortunately, neither the tone nor the way of speaking are annoying. Since he wont be able to get there until tomorrow morning, Chang Haonan doesnt mind doing oral gymnastics. Its not a high-level job. How about you from Beijing Hang University? Although those who could sit in such a box these days had to have some status, they were not within the aviation industry system after all, so he just signed up for school vaguely. Shengjing Heavy Machinery Factory, oh, it should be called Shengjing Heavy Machinery Group now. I am the one who runs the business. My surname is Jin, and my name is Jingui. Gui means longan. What is your surname? Before he could react, the other party had already handed him his business card. ??The title written above is Director of the Supply and Marketing Department of Shengjing Heavy Machinery Factory. No wonder he is so good at talking. It is estimated that the company has just completed the group restructuring, and these things have not had time to be replaced. The noble surname is Chang, the ordinary one is Chang. ?Chang Haonan did not give his full name, but just accepted the other party''s business card. Shengjing Heavy Machinery Group later merged with another company to form Northern Heavy Industry Group, and he has a cousin who works here. In 2020, Northern Heavy Industries produced a 100% fully domestically produced shield boring machine for the first time, which is considered to be one of the relatively good transformation and development among the old state-owned enterprises in Northeast China. The two soon started chatting all over the place. ?Then the topic unsurprisingly turned to the business of Shengjing Heavy Machinery Group. This made Chang Haonan finally breathe a sigh of relief. ?Most of his work involves secrets, and there are too many things to talk about. If you really want to talk about it, you have to use your brain to make it up. Now it is better to focus on listening to what the other party has to say. At least if NHI has any confidential business, it must be very few. ?Jin Gui is indeed a good talker. From the time he started the train, he talked all the way to Qinhuangdao, but he didn''t let Chang Haonan interject a meaningful word. So when the former suddenly asked a question, he was even stunned for a moment. Teacher Chang, do you know that our country seems to have launched a precision engineering project recently? Seiko Project? Yes, I heard my colleague from Bingcheng Boiler Factory mention it before, but our group is not affiliated with the Science and Technology Commission and has no access at all. ?Jin Gui nodded, and then asked cautiously: I heard that Jinghang University is a school under the Committee of Science and Industry. I wonder if there is any chance to get involved? Have never participated. Chang Haonan shook his head without changing his expression, picked up a melon seed from the table, cracked it open, and threw the skin of the melon seed onto a piece of waste paper next to him: Our school doesnt do much research on processing and manufacturing. Maybe you can ask Bingcheng University of Technology? ?This is not a lie, because the title of general technical adviser still belongs to non-staff personnel for the time being. ?According to Ding Gaoheng, there is really no way to grant such high authority to someone with a high school degree. In any case, he has to wait until Chang Haonan obtains dual undergraduate certificates (graduation certificate and degree certificate) before becoming a full-time official. "What a pity" ?Jin Gui shook his head helplessly. Why do you ask this suddenly? ?The other persons question just aroused Chang Haonans curiosity. ? At the same time, he also realized that the Seiko Plan must be promoted as soon as possible, otherwise it would still be limited to only circulate among companies affiliated to the Science and Technology Commission and companies directly connected with the Science and Technology Commission. ?Equipment manufacturing companies like Shengjing Heavy Machinery Group not only need help from the Seiko Plan, but also contribute to the Seiko Plan. It is a pity that they cannot find ways to participate just because of divisions. "To be honest, we are cooperating with Bingcheng Turbine Factory to launch a satellite and build the first domestic 700-megawatt hydropower unit. We have solved many technical problems so far, but in terms of forging and cutting of large workpieces , the difference is still quite large. ?This was not considered a trade secret, so Jin Gui just told the whole story. Actually, there are not many people in the industry who know about this, but most of them are prepared to laugh at them. 700 MW ?Chang Haonans hand holding the melon seeds stopped in mid-air. At present, there is basically only one place that has demand for hydropower units of this power. Three Gorges? I wonder if anyone can guess what award the protagonist will win? (End of this chapter) Chapter 201 Heavy duty hydraulic press required! Chapter 201 A heavy-duty hydraulic press is needed! Thats right, the Three Gorges. ?Jin Gui nodded: According to the plan, the current first phase of 14 units will be purchased from Germanys Voith and Siemens, the United States General Electric, Frances Alstom and Switzerlands ABB, and we will start to consider the digestion and absorption technology for the second batch. Localization. However, the factory still feels that this thing cannot just be waited for and depended on. The relationship between Big Brother and us at that time was very difficult. In the end, it was not the backer but the dependence on everyone, not to mention these foreign companies now. So we started trying to research some key technologies ourselves a few years ago. At first we just thought about doing pre-research, so that we can have some confidence when we bid for localization later. At least we wont follow others when they play tricks. A fool doesn''t know. " "But as we continued to do it, we found that except for the bearing part, which had no technical reserves and needed to be imported, we seemed to be able to try to do the rest ourselves. It just so happened that the factory''s performance in the past two years was good, so we approved a fund. The project is underway. After hearing this, Chang Haonan could not help but feel a little admiration: So thats what it is Bearings, especially ball and roller bearings, are indeed a long-standing problem for China. In the previous life, when Northern Heavy Industries built large-size shield machines, the main bearings were also the last to be manufactured by companies including Northern Heavy Industries, the Institute of Metallurgy of the Chinese Academy of Sciences, and Luoyang Xinqianglian. Several units cooperated to conquer it. ? So it was extremely difficult to make other parts of ultra-high-power hydropower units famous in the 1990s. Jin Gui, who was sitting opposite, continued: So far, the overall progress is pretty good, but the two areas just mentioned cannot be solved by a single factory. We need an overall plan from the superior department. Chang Haonan certainly knows that large forgings and machined parts are difficulties in the equipment manufacturing industry, but he is still prepared to hear more specific opinions from industry insiders. Is this difficult? ? He ??knows how to bring up the following topics very well, not to mention that the person he is talking to is a person who has a strong desire to speak, so it doesnt take much effort at all. ?But this time, the other party did not give an immediate answer like he had done in the past few hours. Instead, he lowered his head and pondered for a while, so that Chang Haonan thought that this question was more sensitive. Its a difficult question, or rather, its not exactly a difficult question. ?Jin Gui unscrewed the lid of the thermos cup and took a sip: "Since you are an airplane manufacturer, you should also understand that it is easiest to manufacture something of medium size. No matter you want to make it very large or very small, the difficulty is very high. For example, the Boeing 747 is definitely much more difficult to manufacture than the Y-5. "The turbine end cover we are going to build, as well as the runner hub, the finished product is nearly a hundred tons in size. Especially the runner, because it has to directly bear the impact of water flow, the requirements for the strength of the hub are very high, and because When working in water, martensitic stainless steel must be used..." "In short, it cannot be manufactured through repeated processing like a blacksmith forging iron. It must be forged and formed with a large enough equipment in one go. This kind of equipment is very complex and involves many different disciplines and fields. It must be It is only possible to achieve this through the integration of national resources by a department like the Ministry of Machinery Industry. ?Chang Haonan nodded clearly. ?In fact, it is just like the Nikolaev Shipyard cannot complete the Varyag aircraft carrier on its own. Fortunately, China still has objective conditions. Its just that research funds in various fields are not abundant nowadays. If you want to carry out such a project with high initial investment, you must come up with some sufficient reasons and go to the higher authorities for special approval. Big enoughhow big must it be? ?This problem is not that Chang Haonan is pretending to be stupid, but that he really wants to know more so that he can go to Ding Gaoheng for a project later: I see that aircraft manufacturers also use super-large forging equipment to make parts such as landing gears. Isnt that enough? Jin Gui shook his head decisively: Its not enough. You should be talking about the 30,000-ton die forging press in our country, or another 12,000-ton free forging press. They are both single seedlings. Even though he is the director of the supply and marketing department, Jin Gui talks about these things as if he is familiar with them: "To put it into perspective, that 30,000-ton machine is already one of the 15 most powerful die forging presses in the world. Germany and the UK are only at the same level as us, but if you want to build the one we designed Wheel hub, its not even enough. ?Before Chang Haonan was born again, he had seen on the news that China had the world''s largest 80,000-ton die forging press, but he really didn''t expect that there would be a 30,000-ton press in the 1990s. Its not enough. If you want to create it, you must at least... He suddenly paused when he said this, and leaned back in his chair to think for a few seconds: It needs to be at least 50,000 tons. If we leave some margin, it would be safer to start with 60,000 tons. 60,000 tons Chang Haonan secretly wrote down this number, and at the same time he felt a little unsure. The later 80,000-ton die forging press was put into trial production only in 2013. ??As Jin Gui said just now, large-scale equipment involves too many fields, and the equipment manufacturing industry is an industry that requires a lot of accumulation. It would be difficult to replicate it under the current situation. Now we only have 30,000 tons, so this is a doubling. In the field of our aircraft, if the maximum take-off weight is doubled, the technical difficulty is quite great. The current foundation of our country..." Well...I cant be 100% sure about this. ?Jin Gui gently touched his chin: But I know that in the late 1980s, Qinghua University designed a 65,000-ton heavy-duty die forging press and had done a lot of production preparations, but it was stopped midway. "I''m not sure what the specific situation is, but at least related technologies, such as pressure cylinders, pressure storage cylinders, and drive motors, must have been pre-researched. In short, the technology in this area is definitely not blank, otherwise we would not be able to do it from the beginning. There wont be any ideas. This is definitely a huge surprise for Chang Haonan. The heavy-duty forging press can perform hot die forging and isothermal superplastic forming of difficult-to-form materials such as aluminum alloys, titanium alloys, high-temperature alloys, and tungsten powder alloys. Therefore, it is widely used and can be used in almost all industrial fields such as nuclear energy, petrochemicals, and shipbuilding. Play a role. ??Of course, it also includes aerospace. ?For example, it is needed for the manufacturing of large aircraft landing gear, airframe load-bearing frame, landing gear, large rocket forging rings, etc. Once built, it can be used for tens or even hundreds of years. It will definitely serve the present generation and benefit the future. After getting the information he wanted, Chang Haonan calmly chatted with Jin Gui about other more relaxed topics, but his mind was already thinking about how to implement this big project. Although he has made considerable contributions in the past six months or so and has been registered as the director of the Committee of Science and Industry, such a big job that can be said to involve the entire manufacturing field, let alone It was him, not even Du Yishan, or even Ding Gaoheng himself, who could decide in one sentence. Among other things, feasibility studies and cost recovery cycles must be done. The only good news is that due to Chang Haonan''s personal influence, the current domestic large aircraft project should not die suddenly as McDonnell Douglas was acquired in the previous life, and the planned production model is also likely to be upgraded from the 70-ton MD90 to The 100-ton class in Figure 214. Therefore, after this heavy-duty forging press is built, it can be guaranteed to have continuous use, and it will not be left idle after making a few hydropower unit parts. But this is not enough. At least not enough insurance. (End of this chapter) Chapter 202 go home Chapter 202 Going Home ??Jin Gui didnt know Chang Haonans identity until he got off the bus the next morning. But the latter has secretly remembered the other party''s needs and will definitely give him a surprise in the future. In the 1990s, due to the lack of communication means, under normal circumstances, holidays were really holidays, rather than working from home. ??Chatting with Jin Gui on the train can only be regarded as an unexpected gain. Even if Chang Haonan wanted to do something right away, he couldn''t find enough people. So the original plan remains unchanged and we will continue to go home for the New Year. After struggling until the evening of the same day, he finally returned to his hometown A typical small northeastern county that has become somewhat dilapidated. Before rebirth, after Chang Yuanchao and Zhou Li retired, they moved to downtown Liucheng at the strong request of Chang Haonan and Chang Jiayao. In fact, if the two elders were not nostalgic and unwilling to go too far, the brother and sister originally planned to arrange for them to retire in Qiong Province, known as the fourth province in Northeast China. Including before his rebirth, Chang Haonan has actually not been back here for more than ten years. So much so that it even took him a while to find the right location after he got off the bus at the gate of the Family Courtyard of the Public Security Bureau. Since it has already passed the 23rd day of the twelfth lunar month, there is a New Year atmosphere both on the street and in the compound. I met several people who could call him by name on the road, but Chang Haonan couldn''t remember any of them, so he had to pretend to be enthusiastic and deal with them casually. ?Standing at the door of the familiar yet unfamiliar Tongzi Tower, Chang Haonan was holding his luggage in his hands, but he was a little unable to move forward. He planned to sort out his emotions first. ?But before he could adjust, he heard a crisp voice coming from above his head: "elder brother-" ?Chang Haonan subconsciously raised his head and saw a head sticking out of a window on the third floor. He waved his hand towards the stairs. Even though its a bit unfamiliar, I can still recognize it. Its the way my sister looked in my memory when she was in high school. Chang Jiayao''s shouting dispelled her timid feeling of being close to home. ?As for my family, why are you thinking so much? ?Chang Haonan strode in and went upstairs. ?The door of the house has been opened, and Chang Yuanchao is waiting at the stairs, wearing a green police uniform shirt with all the logos removed. Xiaonan. The father in front of me is less than 50 years old and in his prime. The father in my memory has gray hair and a much thinner figure. Chang Haonan took a deep breath to stop the soreness in the corners of his eyes. "dad." The two images gradually overlapped. He walked up and wanted to give her a gentle hug. ?However, Chang Yuanchao opposite him obviously couldn''t feel the mixed feelings in his son''s heart. He is a traditional father figure and is not very good at expressing his feelings for his children. Besides, for him, the separation between father and son was only a year. There is definitely a need to miss it, but it doesnt seem to be such an exaggeration. "Hey, eh, haven''t you been back for the whole summer? What''s going on?" ?Chang Yuanchao stretched out his hand to block Chang Haonan, and took the travel bag carried by the latter with his other hand: Lets go, your mother has prepared the meal and is waiting for you to come back. ?Chang Haonan followed his father and walked into that small home, but full of warm memories. Xiaonan, change your clothes, wash your hands and eat. ??Zhou Li was wearing casual clothes. She put the two bowls in her hands on the table while greeting her. Inside is Chang Haonans favorite braised noodles. Chang Yuanchao followed closely behind and entered the house. After closing the door, he put the slippers he had prepared on the ground. ?At this time, Chang Jiayao also rushed out of the house and took the two bags together. Brother, you are finally back. Looking into his sister''s eyes, Chang Haonan knew that she still had half a sentence left to say: Did you bring me a gift? ?He nodded while changing his clothes: "Yes, I''m back. I brought you gifts, which are in my schoolbag." Chang Jiayao''s eyes lit up. ?However, she did not open the bag in her hand in the end. She is still acting like a spoiled child, but she still has basic manners. In the end, Chang Haonan took out the prepared gifts himself. Oh~ Chang Jiayao was obviously very satisfied with the airplane model in the box. You kid...dont spend money randomly... ?Zhou Li, who took the gift box, was too honest and criticized spending money indiscriminately, but her face was full of smiles. ?However, when he saw the pen in his box and the watch that Chang Yuanchao took out at the same time, his expression suddenly froze: Xiao Nan, where did you get so much money? ?Although she works and lives in a small county town, Zhou Li still has some discernment. At least she can see that these things are not cheap. ?With Chang Haonan''s monthly living expenses, unless he really needs to drink northwest wind, he will definitely not be able to save so much money. ?In this era, although a few hundred yuan is no longer a huge amount of money, it is definitely not a small amount. Especially for a student. Scholarships issued by the school, as well as bonuses given to research groups for projects. ?Chang Haonan explained calmly. He did not lie. It was indeed a bonus given to the research team for the project. Its just not issued by the research team. ?In order to increase credibility and make Zhou Li completely relieved, Chang Haonan also took out an award certificate from his schoolbag. It is the Science and Technology Commission scholarship mentioned by Tang Lintian before, with a total of 1,000 yuan. ?Of course he can understand his mother''s reaction, which is that she is worried that she will take some evil ways to make money. Sure enough, after seeing the signature and seal on the certificate, Zhou Li immediately felt relieved. The son has come out She muttered in a brisk tone while walking into the house and replacing the pen she had been using before. On the other side, although Chang Yuanchao had been silent, he had already put the watch on his wrist quickly, and began to think about how to make colleagues pay attention to the watch in a less deliberate way, and how to lead the conversation. Go to the source of the table... In fact, Chang Haonan originally considered buying a unit-style commercial house for his parents in the county town. ??Although this Tongzilou has many warm memories, it does not change the objective reality of poor living conditions. It''s fine for one or two people, but it''s really not a pleasant experience for a whole family of three or four to squeeze into an area of ??about 20 square meters. ?However, looking at the second elders reaction, he decided not to reveal the fact that he still had a huge sum of six figures in his bankbook Afraid of scaring them. take it easy. Fortunately, Chang Jiayao will also go to school in the second half of the year, so the family will be a little more relaxed. After collecting their gifts, the whole family sat together and started eating dinner. By the way, brother, I thought I saw you on the news before. Chang Jiayao looked at the news playing on the TV and said: Around the end of October, when I was reporting on the Shengjing Aircraft Manufacturing Factory, there was a figure from behind next to an airplane, who looked very much like you. Chang Haonan even took about two seconds to remember that it was during the full test flight of the J-8C. He touched the still hot skin after the plane landed. He was indeed quite surprised that his sister could recognize him from his back. ?However, Chang Haonan still had to maintain the consistency of his previous statement, so he still shook his head: Probably not, our research team is at the 603 Institute, which is Haojing, and is responsible for the domestic regional passenger aircraft project. "All right" Chang Jiayao, who did not get the answer she wanted, sounded a little disappointed, and seemed to be half-convinced about the explanation: I thought you designed that beautiful fighter jet. In fact, her guess is quite close to the facts. Im just saying, no matter how powerful your brother is, we cant let a student who hasnt graduated from a bachelors degree just touch an airplane. ?Chang Yuanchao had an expression that said, "I''ve guessed it a long time ago." ?Chang Jiayao opened her mouth and wanted to say something. ?At this moment, a piece of news attracted the attention of the two brothers and sisters: A passenger plane crashed while landing in the Alps. The specific cause of the crash is still under investigation. (End of this chapter) Chapter 203 Working on it (new folder) Chapter 203: Working on it (new folder) The accident occurred on an EMB120 manufactured by Embraer, a regional propeller airliner with a maximum passenger capacity of only 30 passengers. In most cases, an air disaster of this magnitude does not attract much attention. The aircraft of this era are not as reliable as they are in the 21st century. The aviation accident rate is still relatively high, especially for small propeller aircraft. On the other hand, as the 1990s was the era of the fastest development of the civil aviation industry in Europe and the United States, accidents tended to be handled in a low-key manner. ?But this time the situation is rather special. Because the plane was circling for landing, it first yawed, and then crashed directly into the airport in an almost vertical attitude. The crash site was only a few dozen meters away from another Airbus A340 taking off. . ? Nearly 400 passengers carried by the latter witnessed with their own eyes the entire process of their brush with death. And there are several flights that have just landed or are preparing to take off on the tarmac further away. So it became breaking news. The main focus of the media is that the plane''s final flight attitude was so strange. Is it possible that the captain did it deliberately and was aiming to hit the A340 on the runway? The world is not peaceful... Chang Yuanchao raised his head slightly and looked at the small TV screen: It would be unthinkable if this really happened... As a policeman, he is very sensitive to such incidents that may cause heavy casualties. Especially when it comes to aviation safety. ?There are two children in the family, one is already building an airplane, and the other wants to fly an airplane. ? Even if you have never flown in an airplane in your life, or even seen an airplane up close, parents will always pay more attention to the industry in which their children are engaged. As he spoke, Chang Yuanchao glanced at Chang Jiayao opposite with a slightly worried look. As for the latter''s desire to be a pilot, although neither of them raised any objections due to Chang Haonan''s insinuations during that period, it would be absolutely false to say that they were not worried. Zhou Li next to her also showed a complicated expression: Alas...what is this for? Although in Chang Haonan''s view, it is obviously too early to draw conclusions about the cause of the accident, in this era where everyone is relatively simple and has not experienced the infinite reversal of the self-media era, subconsciously, the first Treat the news you hear as fact. Its not necessarily the pilots intention. Chang Haonan shook his head and quietly changed the topic from the report about the J-8C to the news content being broadcast in front of him: "It is still difficult to investigate this kind of accident. In many cases, it takes months or even years. This happened last night. I am afraid that even the post-accident handling work has not been completed yet." Cant? Chang Yuan, who was holding chopsticks in his hand, stopped and said: Isnt it just on the news that they were considering the possibility of a terrorist attack? However, Chang Jiayao was not biased by the reports: My brother studies airplanes. You still cant believe what he says? Chang Yuanchao choked back with one sentence. He has never been able to do anything about his daughter. "Dad, think about it, even when you investigate a case, you have to investigate it for a long time when the case is complicated. After the plane crashed, almost nothing was left, so it is even more troublesome to investigate. , it will take some time just to find the fragments and restore the flight status during the last period. Chang Haonan used examples that his father was familiar with, and lamented that people in this era generally have a... how to say. The beauty of innocence that has not been bombarded by information in the Internet age. Chang Yuanchao, who was left speechless by a pair of children, had no choice but to lower his head to eat, and at the same time whispered to himself: "Then this report is really irresponsible. We don''t dare to say who is the criminal before we solve the case..." He does not mean that. ?This sentence made Chang Haonan think of a lot of things. In the timeline before his rebirth, China was indeed developing well in the fields of economy, science, technology and military affairs. But the media, or the field of publicity The performance is indeed not satisfactory. Especially in the first ten years of the 21st century, there were all sorts of things that were confusing black and white, and some media were almost obviously paid to smear their own countries, which caused a very bad social impact. Of course, we also created a series of famous jokes about the rounder moon in foreign countries such as the American domineering little passport and the German conscience sewer, which eventually became a joke. But if possible, Chang Haonan would rather these memes not appear. Although people later talked about the Tomb Sects public intellectuals with a mocking attitude, only those who have experienced that era know how terrifyingly lethal this group of people was. ? It wasnt until about 2015 that self-media gradually emerged, and it was only through a large number of patriotic creators who were initially called self-organized five that the situation was somewhat restored. But this is just to try to keep the last propaganda front and not lose it. ?This question made Chang Haonan a little lost in thought. He remained silent until after dinner, when he was pulled out of his thoughts by Chang Yuanchao''s words. Xiao Nan, go down for a walk? Chang Haonan glanced at the completely dark sky outside the window and the icy and snowy environment. Now? At night...almost eight oclock? Chang Yuan subconsciously touched the watch on his left wrist with his right hand, feeling that it was indeed a bit excessive. ?Of course the more critical issue is that its so dark outside now that you really cant meet any acquaintances. Forget it, Im going to uncle Qi Xias house to sit there. I havent played chess with him for a long time After saying that, he took off his coat from the hanger at the door, put it on himself, opened the door and walked out. The only advantage of a Tongzi building, especially one that is like a family building for a work unit, is that the neighbors are familiar with each other, so it is very convenient to stop by to relieve boredom. Of course, from another perspective, entertainment methods in this era are really scarce. ?Twenty years later, retired Chang Yuanchao and Zhou Li quickly reduced the frequency of finding people to play chess and square dance after learning to play certain sounds. Sitting on the bed in the living room, Chang Haonan looked around at the dilapidated house in front of him. With the pitiful area of ??the Tongzi Building, it was already the limit to have two bedrooms and one living room separated from each other. Therefore, after they became too old to sleep with their sister, Chang Yuanchao and his wife set up a bunk bed in the living room and separated the two bedrooms. Gave it to two children respectively. ?At this time, Zhou Li was washing dishes in the kitchen. ?Chang Jiayao was playing with the airplane model in the room. ?From the moment he walked into the house, Chang Haonan''s mind has not stopped. He was either chatting or thinking about things. ?Now that I feel relaxed, I was even a little at a loss for a while. ?There is an unknown TV series playing on the TV, but Chang Haonan, who has returned from rebirth, is not in the habit of watching TV. And the clarity of the 14-inch fluorescent tube screen is really annoying. After thinking about it, he sadly discovered that I can only work overtime. ??The content of the two unit textbooks that Tang Lintian was promised to Tang Lintian has not yet been written. ?So Chang Haonan took out the laptop from his travel bag, plugged it in, and turned it on. After thinking for a moment, he first created a new blank document, right-clicked and renamed: In this way, the most important part of a project is completed new folder. Then he got stuck. (End of this chapter) Chapter 204 Challenge the MiG-25! Chapter 204 Challenge the MiG-25! The reason for getting stuck is also very simple. Writing textbooks is different from writing a paper. ??He cannot assume that readers are all industry insiders with a certain academic foundation and go straight to the point after a brief abstract and introduction. Just like now, if he wants to talk about computational simulation, he must first talk about what computational simulation is and how to carry out computational simulation. In short, when Ms. Zhou Li walked out of the kitchen after washing the dishes, she saw her precious son staring blankly at a shiny screen. Xiaonan? The mothers voice finally made Chang Haonan react: "Um?" You are ?Zhou Li walked to the bed and looked at the machine in front of Chang Haonan with curiosity. A computer? Its so small? Thanks to the countrys emphasis on education, most middle schools already had computer rooms and (at least on paper) computer courses in the 1990s, so Zhou Li, as a teacher, has naturally seen computers. ? Its just that laptops are still a new gadget for most Chinese people in this era. Well, yes, its called a laptop. My instructor gave it to me to facilitate my work. ?Chang Haonan looked away from the screen and looked at his mother not far away. Anyway, I worked overtime just now because I had nothing to do. Now that I have no ideas, I might as well give it up for now. ?Zhou Lis attention did not stay on the computer for a long time, but she looked like she was hesitant to speak: Xiao Nan, mom has something to ask you. "You say." ?Chang Haonan sat slightly on the edge of the bed and made room for his mother. You specialize in aircraft, then... Halfway through speaking, Zhou Li turned her head and glanced at Chang Jiayao''s bedroom door: Tell me the truth, is being a pilot dangerous? ?Perhaps because of the news that night, she was obviously worried about Chang Jiayao''s choice again: "Your dad has been a policeman for most of his life. To be honest, every time he is on duty, although he knows that there is not much going on in this small county, he still feels a little worried." Now that he is old enough and has transferred to an administrative position, he no longer has to work, and Jia Yao is going to be a pilot again. This Looking at his worried mother, Chang Haonan didn''t know how to answer this question for a moment. He cannot deceive the other party that piloting is a safe profession. But he doesnt want to worry his parents too much or destroy Chang Jiayaos dream. After the phone call shortly after she was reborn, the brother and sister talked about this matter several times. Chang Haonan was very sure that his sister was not acting on a whim. Whether he wants to get out of the shadow of his older brother, or he really likes it, or he yearns for flying. In short, Chang Jiayao is indeed preparing very seriously. Even arranged a daily exercise plan for myself. Mom, nothing is absolutely safe. ?After being silent for a long time, he managed to organize his words. The first thing to do is to stabilize Zhou Lis mood: Based on our countrys current policy, we will not arrange for female pilots to fly fighter jets. Zhou Li''s complexion improved slightly. ?Although she doesnt know much about airplanes, even if she only reads the news, she can probably tell that those small airplanes that move violently are more dangerous than the large, steady airplanes. "If you are just flying a passenger plane or a transport plane, the safety factor is generally very high. Think about it, if it were so easy to get into trouble, no one would be willing to travel by plane. But in recent years, the number of civil aviation passengers has been increasing. Its a lot. Chang Haonan slightly changed the concept. There is still some difference between military transport aircraft and civilian transport aircraft. ?But thats not important. The plane that crashed in the news just now Sure enough, its still because of this. Its because there are few air accidents that its on the news. In this case, Chang Haonan had no choice but to resort to sophistry. In order to prevent Zhou Li from having time to think clearly, he quickly continued his analysis seriously: Although the cause of the accident is still uncertain, there are only a few reasons why the plane crashed at the airport. ?Chang Haonan stretched out a finger: Either the pilot did it on purpose, as the news speculated, but it has nothing to do with flight safety. In this case, flying ones own plane is more secure than flying. ??The half-joking tone made Zhou Li''s mouth corners rise slightly. "Either it is a mechanical failure, such as engine shutdown, which is related to ground inspection. Our domestic airlines are much more serious about this than foreigners, and there is nothing to worry about." ? ? ? "Or there is another possibility: external conditions. , such as ice on the wings. When Chang Haonan said this, his heart suddenly thumped. ??The crash situation of this EMB120 does seem a bit like a certain Y-8 in the previous life... ?But now he didnt have time to think about it, so he quickly continued: It just so happens that I study passenger aircraft flight safety. In this regard, our countrys level is much higher than that of Europe. Hearing what Chang Haonan said, Zhou Li''s eyes widened in surprise. ?Since the 1980s, a large number of products and cultures from developed countries in Europe and the United States have been imported in an almost barbaric and out-of-control manner, which has had a huge impact on China. One of the most intuitive effects is that the Chinese people have gradually lost confidence. And it is all-round and subtle. ?Even a teacher from a small county like Zhou Li cannot avoid it. ?When she heard that China''s research level was higher than that of Europe, even if this sentence was said by her own son, her first reaction was disbelief. Are we? Better than Europe? "Of course." ??In any case, the worried look on Zhou Li''s face has faded a lot, so Chang Haonan naturally strikes while the iron is hot: This is the direction your son and I are researching. I dont dare to talk about it in other fields. When it comes to dealing with ice on the wings, if we take second place, no one dares to take first place! At the same time that Chang Haonan was dispelling Zhou Li''s concerns about the occupational risks of pilots at home. Kashmir, Skardu Airport. Two fighter jets with slender bodies appeared on the horizon with the roar of getting closer and closer. The lighting lights on the landing gear and the red left and right green wing lights indicate that they are descending to the desired height and have lowered the landing gear and are ready for landing. The landing lights on the airport runway have also been turned on. A few minutes later, the two planes landed on two runways of 3,600 meters and 2,600 meters respectively. After the plane came to a stop, the ground staff who had been on standby for a long time rushed up with auxiliary vehicles and dragged the two planes into the reinforced aircraft castle at the end of the runway as quickly as possible. With the bright lights inside the aircraft fort, one can recognize that these are two of the four J-8Cs that the 1st Air Division just received at the beginning of the year. ? ? A group of soldiers with East Asian faces quickly began various inspections after landing, and took off a total of 8 PL-11 air-to-air missiles hanging under the wings for maintenance. ?Another group of ground staff, generally bearded, pulled up the gangway and were ready to repaint the aircraft. ?Zheng Liangqun and Chen Jialiang climbed out of the cockpit with some difficulty. The two are the deputy division commander and chief of staff of the 1st Kong Division respectively, and have been stationed in Tibet Province for a week before. In fact, in terms of age, they are no longer suitable for toiling in plateau airports for a long time. ??But there is no way. The J-8C is originally a new equipment, and there are not many pilots who can drive it skillfully and use semi-active radar bombs. And the training level of the Chinese Air Force in the mid-1990s is hard to describe. Even basic night flight training can only be carried out by a small number of backbone aviation regiments under the leadership of regimental commanders. ?So after sifting through it, we couldn''t find any young pilots who met the requirements, so we had to let two veterans take over. As for why they drove fighter jets all the way to this strange land just before the Chinese New Year. Naturally, it is in response to the three-sonic squadron that has become increasingly rampant in recent months and has repeatedly penetrated the airspace of the two countries for reconnaissance and retreated unscathed. ?After being locked by the surface-to-air missile array during their first reconnaissance, they optimized their flight route and chose to avoid the fixedly deployed Hongqi 2B A missile array. ?As a result, the only anti-aircraft missile with theoretical interception possibility has lost its effect. ?However, the previous rounds of failed attempts were not without success. At least they allowed the Pakistan Air Force to roughly grasp the activity patterns of the opponent''s reconnaissance aircraft. One of the very important ones is For some unknown reason, the top speed of those MiG-25s seems to be limited, so they usually choose 2.2 times the speed of sound and an altitude of 23,000 meters to cut in from the direction of northern Afghanistan, and then maintain level flight until they turn eastward near Jammu and return. Of course, for aircraft such as Mirage 3 or F16A, knowing this information is meaningless. They have no means to shoot down the opponent. ??Except for Sami taking a photo during the first interception, they could only see the contrail clouds left by each other in the subsequent times. ??However, after the J-8C was delivered to the Chinese Air Force for trial use, the situation was different. ??Although the J-8C only flew above the ceiling of 22,500 meters during test flights, it will further drop to about 21,000 meters after loading bombs. ??However, the Pili 11 missile, which is semi-active radar guided and has a head-on attack range of about 30 kilometers, still gives the opportunity for ambush and interception. (End of this chapter) Chapter 205 Hunting flying foxes Chapter 205 Hunting flying foxes Although the long flight and altitude sickness made Zheng Liangqun and Chen Jialiang a little tired, it was not time to rest yet. Since this plan is highly confidential, the relevant combat plans are completely formulated within the Skardu base by senior staff members. All documents related to the plan content are prohibited from being taken out of the base. No personnel can learn about it until they arrive at the Skardu base. All contents of the plan must also not be left until the combat operation is completed. Even the two pilots who performed the mission only knew roughly the purpose of their visit, but did not know the specific details of the plan. So they had to go to a briefing first and meet with the Pakistani Air Force pilots who were also involved in this operation and were responsible for cooperating. Fortunately, the other party''s ground staff arranged the vehicle thoughtfully so that they no longer had to walk a long distance. ?In a conference room in the underground control center of Skardu Airport, a dozen ground commanders wearing military uniforms from both countries sat face to face on both sides of a long conference table. "Report!" With a crisp command, the two Chinese pilots appeared at the door of the conference room, stood at attention, and raised their hands to salute everyone in the room. After everyone arrived, the combat meeting began quickly. ?A Pakistani Air Force Brigadier stood up, took out a thick stack of documents from his briefcase, and then distributed one copy in front of everyone in order. ??Although it is bilingual in Chinese and English, the translation quality is indeed somewhat difficult to describe. Zheng Liangqun and Chen Jialiang both learned English on the fly after receiving this mission. Two middle-aged men in their 40s spent their lives chewing words day and night, which means they can understand some of the simplest words. Command password. Fortunately, the brigadier general then stood on the podium and began to give a detailed introduction to a large-scale map. The two people put on the headphones in front of them, and the voice of the Chinese translator came from inside. At its core, the plan is not complicated. ?Although the missile launch site of the Hongqi 2A is difficult to move easily, its new fire control radar improved from the SNR-75 Fange actually only requires a trailer and a power supply truck to be taken away. The MiG-25 of the Triple Sonic Squadron is the oldest MiG-25RBK. It is not equipped with a radar and has not undergone subsequent upgrades. Its radar warning receiver (RWR) can only sense that it has been locked, but cannot know whether there is a missile. Even if it is launched, the ground radar located east of the Military Demarcation Line cannot see the situation of the Hindu Kush Mountains across the high mountains. So the pilot is almost blind in the cockpit. ??As long as the fire control radar is set up in the middle of the MiG-25''s new route, the opponent can make the opponent think that a new anti-aircraft missile site has appeared here, and thus make one more turn to avoid possible interception shots. ?According to previous experiences, due to some unknown reasons, the Indian Army''s MiG-25 will lose very serious speed during the turn. This is the opportunity for two J-8Cs. ?Of course, this is easier said than done. Since the air forces of the two countries do not have joint command capabilities or common data links, they need to rely on voice guidance. The J-8C and MiG-25 fly at more than twice the speed of sound almost the entire time. By reporting coordinates by voice, the aircraft can Traveling a few kilometers away, the range of the airborne radar is relatively narrow, so it is easy to miss the target. To this end, the Pakistan Air Force has designed an extremely complex airspace division table. Two pilots can put it in a transparent sleeve on their thighs before taking off. When the time comes, the ground only needs to report an airspace division table consisting of two letters and one Arabic numeral. The code is enough. ?Of course there are other parts of the combat plan that are used to deceive the enemy, but this part will be completed entirely by Pakistan and has nothing to do with China. There is no need for any nonsense in the combat meeting. It will be over after everything that needs to be said is said. What was finally determined was the operation code name. Very straightforward OperationKilltheFoxbat. Chinese, bat hunting operation. ??Chen Jialiang put away the combat plan that was handed to him, stood up and prepared to meet the Pakistani colleagues who were cooperating with them. ?However, Zheng Liangqun next to him was still sitting there, frowning and staring at the papers in front of him. Old Zheng? Old Zheng? After calling twice in a row, he finally reacted. Why are you so dazed here? You are too tired today? Chen Jialiang''s tone was full of concern. ? High-altitude flying is actually quite costly for pilots, especially since the Chinese Air Force lacks experience in this area, and pilots are especially required to recharge their batteries. Thats not the case. Zheng Liangqun, who had lowered his head and said nothing just now, shook his head: I just think this plan is a bit... too complicated. "We have conducted high-altitude and high-speed performance tests before. With two Thunderbolt 11s, it is enough to fly to 21,000 meters and Mach 2.2. In fact, we only need to lay ambushes on its previous routes, power on, lock and launch the missiles in the shortest time. Thats fine, theres absolutely no need to resort to such tricks. Is this... Hearing what the deputy division commander said, Chen Jialiang also felt a little strange: "I think it may not be entirely due to technical reasons. For a mission like this, as long as you participate in it, you will make a contribution, and you will not be able to get away with receiving awards for meritorious service. I am afraid that the surface-to-air missile troops and aviation forces on the Pakistani side are not willing to just be spectators, right? " Besides, this is an extra layer of insurance, and it can make it easier for the two of us and save us two hours of flying. Double 21 is an altitude of 21,000 meters and a speed of Mach 2.1. In the past, this was an indicator that could only be achieved on paper. After receiving the J-8C some time ago, their division achieved it for the first time in combat status. "how to say" ?Zheng Liangqun is still a little hesitant: Their plan feels to me like the nine-stage taper of the Japanese Navy during World War II. In many places, they bet on the enemy to act according to their own ideas. "But the reality is not the Romance of the Three Kingdoms. There is no such scheming Zhuge Liang, so the plan should be concise and concise. If it is too complicated... it can easily lead to problems." I didnt expect you have research on the navy? ??Chen Jialiang smiled and patted his old comrade on the shoulder and said comfortingly: "This kind of thing is not something you and I can decide. We can only make all preparations and strive to be foolproof at the execution level." Thats what you said. We should make a list of possible unexpected situations when we get to the residence later At this time, a colonel wearing a Pakistan Air Force flight uniform came over with an interpreter and interrupted their discussion: Hello, two Chinese friends who have come from afar. Speaking, he first saluted them. The deputy division commander and division chief of staff both hold the rank of colonel, equivalent to brigadier general, so naturally the other party salutes first. "Hello." The two men immediately stood up and returned the courtesy. Badra Islam, the commander of the 9th Squadron, will... cooperate with you in the battle. ?This sentence has lost its tone after being translated, but even if you dont understand English, you can still hear some embarrassment in his words. The participation of the Chinese Air Force in the battle is naturally top secret and cannot be revealed. Therefore, if the MiG-25 is really shot down, a Pakistani pilot will be required to come out and claim the result. Obviously, this colonel named Islam is the super lucky person who was selected. If all goes well, he will only need to take off the plane, fly according to the route, fire two missiles and then land, and he will be able to receive the highest medal. ?But this has nothing to do with the two Chinese Air Force pilots. ?Zheng Liangqun and Chen Jialiang quickly started a conversation with Islam, and the content was naturally inseparable from the air battle. ??For the Chinese Air Force, which has had no combat experience for many years, it is a very valuable opportunity to come into contact with foreign military colleagues who have actually participated in air combat. The four of them left the underground control center all the way, got in the car and headed to the pilot dormitory on the other side of the airport. ?When passing the reinforced machine fort on the road, Islam signaled the driver to slow down, rolled down the window at the same time, stuck his head out and stared at the two J-8Cs that were removing the Chinese Air Force emblem for a long time. (End of this chapter) Chapter 206 J-8C, first victory! Chapter 206 J-8C, the first victory! I specially found the video tape and watched the flight performance of this kind of aircraft at the Xiangzhou Air Show. Islam, who shrank back, rubbed his cheeks that were a little stiff due to the cold wind and said: I thought that video had special effects, it was so... unforgettable. ?This somewhat sudden compliment made the two Chinese pilots sitting in the third row of seats at a loss as to how to respond. ??The trip abroad was urgent, and the superiors did not specifically emphasize confidentiality discipline, so they did not know whether they could discuss the detailed aircraft performance with friendly pilots. ?? Chen Jialiang gave a somewhat stiff answer: Its really good. We just had our first flight training. I was shocked when I pulled the stick at low altitude. So its really an interceptor, right? ?Perhaps worried about some ambiguity, Islam added another sentence after the translation: I mean, generally speaking, the range of advantages of aircraft performance is relatively limited, especially it is difficult to take into account both high-speed and low-speed segments at the same time. ?This sentence posed another problem for the two people behind. Chen Jialiang''s face was almost frozen. Well... we have very good aircraft designers in China. They have optimized low altitude and low speed while ensuring the interception performance of the aircraft. You can rest assured. At the same time, thousands of kilometers away, Chang Haonan, who was about to go to sleep, suddenly sneezed for no reason. After everything was ready for the bat hunting operation, it didnt take long to wait. Thursday, February 6, 1997, the 29th day of the twelfth lunar month, the Chinese New Years Eve. The MiG-25 of the Triple Sonic Squadron is here again. The radar station at an altitude of 5,374 meters captured the target as soon as the other side took off, and then reported it to the Skardu base through the newly established communication mechanism between the two countries. After all, it was my first time and I was not very proficient, so it still took a little time. ?But its not a big problem. ?Zheng Liangqun and Chen Jialiang, who had already put on full flight suits and were on standby, climbed into the cockpit as quickly as possible after receiving the order. The pre-flight inspection had already been completed by the Aviation Industry Group staff who came with them. The Chinese ground staff wearing Pakistani military uniforms nearby had also undergone intensive training and quickly evacuated the power supply vehicle and air supply vehicle after waiting for the engine to start. Everything went in an orderly manner. About five minutes later, almost at the ground radar station, it was reported that the MiG-25 was turning in the airspace of Afghanistan and preparing to enter the airspace of Pakistan. At the same time, the two pure white paints were painted with only 01 and 02 low-visibility paint on the fuselage surface. The degree-numbered J-8C aircraft lifted off the ground lightly. In order to ensure better flight performance, Zheng Liangqun specifically requested that each aircraft carry only two PILETS 11 when taking off. ?According to his opinion, the difficulty of shooting down the MiG-25 mainly lies in overcoming the speed and altitude. Therefore, if four missiles cannot hit the target, then four more missiles will not work. It is better to remove some loads so that the aircraft can fly higher. ?According to the plan previously formulated by Pakistan, the two planes quickly flew into the scheduled interception airspace and waited for the next order. Griffin team, the target has crossed the Hindu Kush Mountains, and the estimated time of contact with the enemy is 140 seconds later. ??A brief command in English came over the radio. In this operation, two J-8Cs will be disguised as Islam''s 9th Squadron aircraft, so the code name was also changed to "Griffin" of the 9th Squadron. Griffin 01 (02) received. The two of them answered almost simultaneously, turning on the radar at the same time, preparing for interception operations. Everything seems to be going according to the original plan. 20 seconds later, the fire control radar that had temporarily changed its deployment position captured the target. In the operations cabin, Captain Arshad Khan switched the radar to tracking mode. He almost caused a catastrophe last time and decided to wash away his shame this time. However Five seconds later, the radar that had completed locking suddenly lost its target. ??The captain was startled into a cold sweat and quickly switched back to the search mode. After discovering the target, he locked it again. After another 5 seconds, the radar lost the target again. ?Arshad felt that he was about to faint. He quickly picked up the phone and reported the situation to the command center. "Calambar cannot track the target! Repeat, Calambar cannot track the target!" ??The originally relaxed atmosphere in the command center suddenly became tense. ?The two J-8Cs also received the information subsequently. Since the fire control radar could not lock the target, the MiG-25 did not change its direction, but continued to fly at the original altitude and speed. ?This piece of English was not among the predetermined command commands. Zheng Liangqun only understood a few words in it, but from the urgent tone on the radio, he knew that what he was worried about was coming. Report target position and prepare for interception. While speaking, Zheng Liangqun had already pushed the throttle valve directly to the maximum afterburner state. Those tricks are really unreliable. In the end, we still have to compete for height and speed. ?He thought in his heart. Fortunately, the radar station did not panic and quickly reported the new target position. ??160 seconds after receiving the first interception command, two aircraft finally appeared in front of the MiG-25. It was 20 seconds later than the expected enemy contact time, and the direction was not directly opposite. ?But there is still a chance. At a distance of 20 kilometers from the target, Zheng Liangqun changed the fire control radar from search mode to tracking. The response speed of the 1472 radar is very fast. According to past experience of target shooting, within a few seconds, the words "approved to launch" will appear on the HUD. ?However, the radars of both aircraft also lost their targets a few seconds later. "Um?" Zheng Liangqun, who was almost about to pull the trigger of missile launch, was dazed for a moment. The wingman also reported the same situation, the target would be lost after a few seconds of locking. Fxxk Zheng Liangqun subconsciously said the only word he had ever learned to express strong emotions. At this time, his plane had reached a speed of Mach 2.3, which was slightly faster than the MiG-25, and a slightly lower altitude of 21,500 meters. However, if he waited for a while, he would miss the most advantageous angle. I could try a jump and try using the cannon. Chen Jialiang proposed a somewhat crazy plan. After all, the difference in height is only more than 500 meters, so theoretically it is possible to compete. ?The only problem is that a power jump is not a normal way of flying, and in addition, the gun must be fired during the flight, which may cause the aircraft to crash and kill people. No, we have another way. A somewhat unfamiliar voice appeared on the radio, and it took Zheng Liangqun about half a second to identify it as a radar engineer from the 14th Institute of Electrical Engineering. Since the J-8C is still in the trial stage, in addition to ground staff, many technical personnel from the factory were also brought in this time. Under the multi-function display, which should be the second from the right, there is a button labeled anti-drying. Press it and try it. Since it has only been a month since the aircraft was installed, even Zheng Liangqun, who is the backbone of the trial, has not tested all the functions of the aircraft. ?But he did it anyway. Then try to lock the target again. ?At this time, the two J-8Cs were only about 16 kilometers away from the target, but they were about to enter a tail pursuit state. Fortunately, the radar tracking status is stable. A few seconds passed without losing the target. The words "Permission to launch" appear on the HUD. ?As the two pilots pulled the triggers, two Thunderbolt 11 rounds were shot out from the launcher, dragging thick smoke and flames. The huge initial speed given by the carrier aircraft allowed them to quickly accelerate to Mach 4.7, which was faster than the paper data. At the same time, the pilot Major Palak Chopra sitting in the cabin of the MiG-25 was no longer as calm as before. ?The pod he carried on this mission was the latest improved pod of the US military. In addition to the same reconnaissance function as before, it can also perform adaptive azimuth interference on the fire control radar. Simply put, electromagnetic waves can be deceived through side-lobe interference, allowing the radar to lock on a false target in the wrong direction. ?Of course, this kind of target cannot exist stably like a real aircraft, so the opponent''s radar will soon lose its lock and will not foolishly launch missiles at false targets. But it is enough. Just now he had relied on this function to avoid being locked by two radars. ?However, the constant sound of alarms in the cabin now clearly reminded him that the plane had been locked. ??And the signal source is located at the three o''clock direction at the same height as yourself. Chopras first thought was: Do they have a plane that can fly so high? ? He ??knew all the equipment of the Pakistan Air Force very well, and it was absolutely impossible for him to have anything that could fly to an altitude of 20,000 meters. The second thought is: How did their radar get rid of the jamming so quickly? ?However, at this critical moment, he didn''t bother to think about anything more, and quickly followed the standard operation of avoiding air interception, turning towards 9 o''clock and lowering the altitude. ?The cockpit visibility of the MiG-25 was very poor, and he could not see what was behind the aircraft, but the RWR siren never stopped. Obviously the opponent not only has enough flying height, but can also keep up with him at speed. ?And he didn''t even know what it was that was following him to urge him to die. Fear gradually began to overwhelm Chopra''s sanity. As a MiG-25 pilot, he has never experienced such a life or death crisis. If hit Chopra knew that no ejection seat in the world could save a pilot''s life at Mach 2. Even the most advanced K36DM has a safe ejection limit of only Mach 1.5. He was afraid. ?At the last moment before being hit, the MiG-25 reduced its altitude and speed to a relatively safe level. Zheng Liangqun, who was following closely behind, saw the light of fire when the target was hit. After flying over, he discovered that the opponent''s pilot had also parachuted. "I think we can send a search team to see if the other pilot is still alive, and..." He turned his head and looked at the spinning and falling wreckage of the enemy plane: And the target finally reduced its height and speed, so the wreckage may be relatively complete. The command hall over the radio station was already filled with joy. After calming down a little, the leading major general of the Chinese Air Force found the engineer from the 14th Institute of Electrical Engineering who had just snatched the microphone from his hand. Xiao Guo, why is that button you asked Lao Zheng to press so powerful? The engineer named Xiao Guo was obviously very excited at this time, and he immediately started talking about it: This starts from a cybernetics paper we saw a few months ago... Chang Haonan, who was making dumplings with Zhou Li thousands of kilometers away, sneezed again for no reason. (End of this chapter) Chapter 207 Seize the jamming pod! Chapter 207 Seizing the jamming pod! What paper? ??The team leader patted the engineer named Guo Lin on the shoulder, trying to bring some authority into his tone, but the unstoppable smile on his face made his efforts in vain: Stop being so secretive and tell me quickly! Fortunately, the latter is not a light-hearted person, and he quickly gave a further explanation: That happened when we were working on the cooperation between Thunderbolt 11 and radar with the Second Bureau of Electromechanical Engineering. "One of the problems of Thunderbolt 11 in recent years is that the line-of-sight angular velocity signal extraction is not accurate. The farther away the missile is from the aircraft, the more serious the direct wave spurious signal is. The echo signal cannot be detected up to 20 kilometers away. Until the end of last year, At that time, a comrade from the Second Bureau saw an algorithm paper published in a foreign journal and used the theory in it to solve these two problems by updating the filtering method. " At that time, our 14th Institute discovered that for some specific deceptive active electronic interference, after multiple target echoes appear in the tracking gate, the filtering method can also be used to process the original echo and the new echo, and then By comparing the two processing results with the original memorized target motion data, the real target can be determined. The major general standing opposite was a little confused by the lot of proper nouns in this paragraph, but he was an Air Force officer after all, and he still had concepts about things like filtering and echo, so he understood it. Seven, seven, eight, eight. ?However, Guo Lin has obviously entered the state, and is even ready to challenge the team leader in front of him with more in-depth knowledge: The specific implementation principle is actually that the radar pulse repetition period is known. Under normal tracking conditions, when the radar is relatively close to the target, the target echo will be earlier than the echo of the previous period..." Okay, okayI already know that the model you mentioned is very powerful. The major general quickly raised his hand to interrupt: But since this mode can solve deceptive interference, why do we need to set a separate button? Wouldnt it be better to directly add it to the radars default working mode? ? Guo Lin, who was only halfway through his words, still had more to say, but after all, he was facing a general, so he stopped talking: Because turning on this mode will affect the response speed and refresh rate of the radar, it is best not to turn it on when there is no anti-drag interference. After hesitating for a moment, he added: "Actually... because there are very few studies on towing interference in China, and they are basically at the theoretical or laboratory stage at most, so although we have built this function, we have never had the opportunity to test it. Before this time, it was still not very Make sure it works..." "etc" Even though he had little understanding of the theoretical content of the other party, the major general leader quickly grasped the key points of this passage: The drag interference you mentioned is the reason why the radar lost its target after locking it for the first three times? The Chinese Air Force officers in the 1990s must have paid close attention to the Gulf War. In that war, both sides used a lot of electronic warfare capabilities. The coalition used electromagnetic interference to disable the Iraqi air defense system, and the Iraqi army in turn used electronic warfare equipment to resist the coalition''s precision-guided weapons, forcing the latter to dream. After returning to Annan, I had no choice but to resort to the old method of carpet bombing to solve the problem. So even though he was a little impatient with Guo Lin''s unfocused way of speaking just now, when he heard an electronic interference mode that "has not been studied much in China", he immediately became sensitive. I wasnt sure yet, but since the anti-drying mode works, it should be. Young engineers are still in the excitement. After all, it has been nearly 30 years since the last time the Chinese Air Force shot down a target in actual combat. It can be said to be a record-breaking first victory, and he himself unexpectedly played a key role in this process: "Current fire control radars basically use the Doppler effect to detect targets. This is a speed tracking system, and velocity gate drag jamming can give the radar false speed information, allowing the radar to track a false target. The radar field of view in the tracking state is very narrow, and it will naturally unlock within a few seconds. " ?This time his explanation was concise and concise. Did the MiG-25 have this capability at that time? ?The Major General was a little surprised that this complex-sounding thing would appear on an interceptor fuselage designed in the 1960s. ?This question really hits a blind spot. When everyone is busy celebrating, it is indeed easy to miss such details. So Guo Lin on the opposite side also hesitated: "I think... there shouldn''t be. Although the relevant theory emerged not too late, pulse Doppler radar was not widely used in the 1960s. There seemed to be no demand for it, and the level of electronic engineering did not support it. " At this time he also realized the problem. Is there another electronic warfare aircraft in the airspace? ?Such an unconventional guess left the team leader speechless. He waved his hand and was about to say something when he saw a Chinese officer wearing the uniform of a lieutenant of the Pakistan Air Force trotting over: The report from the Gryphon is that the target deliberately controlled its speed and altitude before being shot down, so the opponents pilot had parachuted out, and the aircraft was generally well preserved during the fall. Hearing this sentence, the two people who were chatting about the electromagnetic interference issue brightened up almost at the same time. Logically speaking, if the aircraft is hit by an air-to-air missile at 2.2 times the speed of sound, the aircraft will directly disintegrate at high altitude, and the resulting debris will probably fall within a radius of tens of thousands of square kilometers. Coupled with the fact that there are complex terrain and inaccessible mountainous areas nearby, it is simply impossible to completely search for the wreckage based on the organizational capabilities of the Israeli-Palestinian Army. ??Moreover, if too many people are involved, the news may be leaked. ??But if the target crashes as a whole, even if it falls into pieces after landing, the splash range will always be limited, and the manpower and material resources required will be much less. ??The major general adjusted his military uniform, which was not quite fitting, and quickly made a decision: "This matter cannot be delayed. You should immediately inform Pakistan of the situation and ask them to send a reliable airborne force and helicopters over. Be careful not to let the news leak out, especially not to let their Inter-Services Intelligence Agency know." Also, if you find the pilot who parachuted, dont make it public. In that country I will report it domestically, but the situation is urgent now. If we delay it, it may only increase the number of variables. We can only cut it off first and report later. Hearing this decisive answer, the lieutenant was stunned for a moment, then stood at attention and saluted: "yes!" I think the questions we just had will be answered soon. The team leader looked at the lieutenants leaving figure, took two deep breaths in succession, and then turned to look at Guo Lin: If we finally find the kind ofjamming equipment you mentioned on the wreckage of that plane, is it possible to imitate the same equipment with our current technical capabilities in China? Then he may have felt that his request was a bit excessive, so he added another sentence: The functions are the same, but some requirements for specific performance can be relaxed. ??Guo Lin held his chin with one hand and lowered his head slightly, but his eyes that kept rolling proved that his brain was thinking rapidly. After about a few minutes, he finally answered: "Electronic components such as ADCs and FPGAs are actually off-the-shelf products that everyone uses, and the design and printing of PCB circuit boards are not a problem. In fact, what we lack in China is specific algorithm development and corresponding programming and Parameter debugging capabilities, even if there are samples, can only provide a certain reference value unless they are particularly complete. " Hearing the end, the team leaders mood dropped. He thought that this thing could be done in a relatively short time, just like the replicas of captured missiles and drones. ?However, the solemn atmosphere did not last long. But speaking of which, our countrys recent progress in this theory should be very rapid... ?Guo Lin seemed to suddenly remember something: After all, the influential paper I just mentioned was written by two Chinese people. Although interference and anti-interference are not exactly the same thing, it seems that there is no commonality in algorithm research. So you can ask for foreign aid? The team leaders heart was filled with hope again. "I can''t guarantee it, but... I can try it after I return to China." ?Guo Lin felt a lot more relaxed when he thought of this: It just so happened that the 601 Institute asked us if we could build a larger radar and install it on the aircraft. Now the total power supply of the two turbojet 14s, 36kW, has been wasted. If we can get a set of jamming equipment, we can try to install it on it. (End of this chapter) Chapter 208 hello 1997 Chapter 208 Hello, 1997 ?Later that day, on the other side of the world, in Arlington County, Virginia. ?The new Defense Secretary William Cohen, who took office less than half a month ago, has just walked into the office and is preparing to handle some of the work left behind by his predecessor. For the past dozen years, he has served on the Intelligence Select Committee. ??Although it sounds like the name of an intelligence agency, it is actually a clerical position connected with a think tank. It has nothing to do with intelligence business, and it cannot even be regarded as a federal department. Of course, there is indeed a lot of oil and water in it. ?However, this also means that his previous experience cannot provide him with much help in his new position in the defense field, so he is still in a bit of a hurry. ??Cohen looked at the pile of documents and forms in front of him, feeling somewhat helplessly grateful that things had been calm recently and nothing particularly difficult had happened. ?However, before he could relax, there was a knock on the office door. "Come in." Without raising his head, Cohen thought that he might have found the document from somewhere. As the only member of the Elephant Party in the current Donkey Party government in the United States, he is not surprised that he has encountered some difficulties and obstructions. Some of the troubles were even pitfalls deliberately dug for him by his predecessor. Mr. Minister, this is an urgent message from the military attach in New Delhi. The secretary puts a document on his desk. Its an urgent call, its an urgent call again, why cant everything happen... ?Cohen muttered as he casually opened the folder. Then he took a long breath of air, and the temperature in the whole office seemed to be a little higher. Obviously, this time it was not someone deliberately trying to cause trouble for him, but something really happened. Contact General Shalikashvili, I want to meet with him. About half an hour later, a Caucasian officer wearing the rank of four-star general came to Cohen''s office. John Shalikashvili, 13th Chairman of the Joint Chiefs of Staff. General, I need an explanation. ?Cohen handed the document just now to the other party. At first, he was a little angry. In the 1990s, the United States had not yet gone crazy with the issue of identity, so in Cohen''s view, it was understandable that it would cause him some obstacles due to the donkey-elephant dispute, but making such big news in order to exclude him was a bit outrageous. Line. ?But soon, he discovered that the admiral sitting opposite also had a look of astonishment on his face, and seemed to know no more than he did. I cant explain anything, Mr. Minister. ?The gray-haired John handed the document back to Cohen: "If my guess is correct, this should be an action carried out by Langley, but...something happened, so our military attache will know." Then the two of them were silent together. How could the Air Force not know about this kind of professional aviation reconnaissance equipment? About a minute later, Cohen asked with some distress. Mr. Secretary, you know that the CIA has extensive intelligence authority. Shalikashvili shook his head helplessly: Many reconnaissance equipment, such as this pod and even U2S reconnaissance aircraft, are their assets. The Air Force only operates them on their behalf. There is no need and of course no authority to conduct terminal management. ? ?Cohen threw the folder onto the desktop with a snap: Then this matter Leave it alone. The admiral shook his head: This matter has nothing to do with us. If they get involved, if anything happens in the future, they may blame it on our military. "But according to what this document says, the pod they lost seems to be very advanced. Does it really matter?" Cohen, who has just taken office, is still a little worried. Whether it is advanced or not is something Langley should consider, Mr. Minister. The Chairman of the Joint Chiefs of Staff still insisted on his opinion: In addition, it said that the pod was hung under a MiG-25, and that plane was suspected to have been shot down. "So there is nothing to worry about. Although I am from the Army, I also know that a high-altitude, high-speed aircraft will disintegrate directly after being hit, breaking into thousands of pieces. From the airborne equipment to the pilot, it is impossible to leave anything behind. The whole thing." Besides, to put it another way, Langley also has internal connections with the Inter-Services Intelligence Agency, which is better than ours. ??Cohen looked down at the document and frowned. He was not impressed by the third reason given by the other party. Even if the so-called insider relationship exists, I am afraid it is no longer useful for some reasons. Otherwise, why bother with aerial reconnaissance? But the first two statements are quite reasonable. Well, youre right, General. The new minister thought of all the troubles his colleagues had caused for him in the past half month, and finally decided to listen to the opinions of professionals and ignore the matter. ??The turmoil in the South Asian subcontinent is destined to only affect a small number of people. For the vast majority of Chinese people, the most important thing today is obviously the New Year. Chang Haonan, who was at home, did not know that he had been targeted by the electronic industry system. At this time, he was sitting around with his family, making dumplings and watching TV. ??The Spring Festival Gala of this era is still relatively eye-catching. In addition, since he was reborn, he has basically been working intensively, so he is happy to idle his mind for a while and only occasionally answer some questions raised by his sister. ??At this time, Kung Fu TV just started to play a sketch called "The Dark Willow and the Bright Flower". ?Chang Haonan suddenly felt that his past memories began to attack him. Because this is a short story about blind date. ?Of course, the theme must still be the story of spring. But the scene that cant be resisted is a blind date. As expected, when she was halfway through, Zhou Li stopped what she was doing and turned her head to look at Chang Haonan. Xiao Nan, you will be 23 years old after the Chinese New Year. In the Northeast, this era is generally said to be empty. Mom, my 22nd birthday hasnt even passed yet ?Chang Haonan replied helplessly. ?No matter what others think, he has lived his whole life again, and he only feels that he is so **** young now. 23 is really not a big deal, but its time to think about my girlfriend. As expected, Zhou Lis topic still ended here: We are not in that era now. We can get married as soon as our parents ask us to meet each other. Why cant you date a girl for several years after you meet her? It just so happens that the daughter of our neighbor when we lived in a bungalow... ?Chang Jiayao was beside her with her head down and laughing. ?Chang Haonan was speechless. ??He completely couldn''t understand how the relationship between neighbors in the past could be maintained for so many years. ?But before Chang Haonan could figure out how to politely refuse, Chang Yuanchao, who had been concentrating on making dumplings just now, raised his head in astonishment: You mean the daughter of Lao Hes family? Yes, whats wrong? Zhou Li looked at her husband with some confusion, as if she was wondering why he reacted this way. Lao Hes family is going to Fujian Province to work with relatives during the Chinese New Year, didnt you know? ?This time it was Zhou Li''s turn to look shocked: I dont know, I met Lao Hes wife a few days ago. Chang Yuanchao shook his head: Lao He and his wife have decided to be laid off during the restructuring of their factory, and her daughter cant find a good job here, so were just going to go south as a family. ??Zhou Li took a long time to recover from the shock: "Lao He''s wife didn''t tell me this. She specifically asked us about Xiaonan''s situation. I thought she wanted to bring the two families together." Chang Yuanchaos expression changed after hearing this. As a policeman, he immediately understood the other party''s plan. "Lao He''s wife... is not good. We cannot marry her." ?Zhou Li also turned around later and realized that the other party wanted to tie up Chang Haonan and stopped mentioning the blind date. Chang Haonan, on the other hand, never thought about agreeing in the first place, so he had no feelings about this matter. It''s just that, for the first time, he intuitively felt the impact of the layoff wave. For a family, it may mean leaving their hometown. The fireworks outside the window went off. The year 1997 is coming soon. (End of this chapter) Chapter 209 Arrange a special flight! Chapter 209 Arrange a special flight! ?The first New Year after Chang Haonan''s rebirth passed in such a dull atmosphere. Originally, he planned to stay at home for the Lantern Festival before returning to school. But the current situation does not allow him to be offline for such a long time. After all, with greater ability comes greater responsibility. There are too many places where Chang Haonans help is needed. On the evening of the third day of the Lunar New Year, when the family was watching TV after dinner, the phone suddenly rang. The person who answered the phone was Zhou Li. Hello, who is this? ?At first, Chang Haonan didn''t care. After all, the person who called home was basically either a relative or a colleague looking for Chang Yuanchao or Zhou Li. No one he knows probably knows his home number. ?However, the mothers next words made Chang Haonans breath hitch: Yes, Chang Haonan is here. More than nine months later, this familiar feeling is back! It smells like working overtime! Sure enough, after a few seconds, Zhou Li said again: Then Ill give him the phone, please wait a moment. Then she covered the microphone with her hand and looked at Chang Haonan on the sofa: Xiao Nan, there is a man named Yi Yuanhe, who said that he is an engineer at Haojing Institute of Aviation Industry 603, and he wants to see you if there is something urgent. ?Chang Haonan nodded with a complicated expression and stood up to take the phone. Mr. Yi, Happy New Year. Happy New Year, Comrade Xiao Chang. ?Yi Yuanhe''s voice on the other end of the phone was also a little embarrassed. After all, even if calculated based on their working days, the third day of the Lunar New Year is only half of the holiday. What''s more, Chang Haonan is still a student and enjoys the winter vacation at school. Im really sorry that I have to disturb you during the Chinese New Year... Mr. Yi, lets not talk to each other. Chang Haonan smiled bitterly and replied: If it wasnt something urgent, I guess you wouldnt go to all the trouble to find my home phone number, right? ?He just vaguely remembered that before entering freshman year, there would be a home phone number when filling out the file. ?However, this requires checking the files to find out. In addition, it is still the Spring Festival holiday, and the school''s administrative staff should not be at work. It must be quite troublesome to check the files. Thank you, Comrade Xiao Chang, for your understanding. It is indeed urgent, regarding the anti-icing system and airworthiness certification standards we have done before. "Well" Hearing this, Chang Haonan suddenly had a guess in his mind. ?This incident is probably related to the plane crash I saw the day I just returned home Because from the perspective of investigation, of course there are many possibilities that could cause the air crash. But if the ice accumulation problem is really taken as the starting point, the characteristics of the accident are actually very consistent with the situation where the ice thickness on the wing exceeds the threshold during landing, and the anti-icing system does not work properly, causing one side of the wing to lose lift. At the moment, the MA60 is in full swing and the 603 and 172 factories are preparing to enter this model into the European market. Obviously, they will take this suspected ice accident very seriously. ??The only thing that made him a little confused was that China was generally a country where ice damage was not serious. The poor record of Yun 8 was simply because the original design was really bad. ?Furthermore, the MA-60 is still far from being finalized, and it has already conducted test flights under four types of ice damage conditions before. This matter does not seem to be urgent these days. ?But in any case, even if the MA-60 is not a confidential project, talking about too many technical issues on the phone is obviously not a good choice. So, what exactly do you need me to do? Chang Haonan goes straight to the point. The Science and Technology Commission will arrange a flight from Liucheng to Haojing tomorrow. We will discuss it in detail after you come over. Yi Yuanhe is obviously not prepared to talk too much at this time. "division" Chang Haonan was a little surprised, and those three words almost blurted out. ? The Science and Technology Commission is not the leading party in the MA-60 model itself. It allows them to specially use resources to arrange the aircraft, which shows that there may be more things behind it. This made the remaining resentment in Chang Haonan''s heart turn into curiosity and expectation. Okay, lets see you tomorrow. After Chang Haonan finished speaking, he hung up the phone. Xiao Nan, is there something going on at school? ?Zhou Li, who was standing behind her, asked cautiously. Ah, yes, there is an emergency at the project, and I was asked to go back tomorrow. Looking at his mother''s expression, Chang Haonan felt a little apologetic in his heart. After all, this time he returned home after a year, but he only stayed for less than a week. Chang Jiayao, who was still sitting on the bed just now, suddenly jumped out of bed and ran back to the house after hearing this. After returning from Chang Haonan, something happened to this little girl. She stayed in her room for a particularly long time. I think this is a good thing. Chang Yuanchao next to him looks at the problem from a different perspective: "Like when I was in criminal investigation, didn''t I often get called away during holidays or in the middle of the night? Now that I''m sitting on the bench as an in-house clerk, I feel at ease." "So calling Xiao Nan back at this time not only shows that the situation is indeed urgent, but also shows that they value him." "You''re still embarrassed to mention it in advance." ?Zhou Li turned back and glared at Chang Yuanchao: You were not even in the hospital when I gave birth to Xiaonan ? Feeling his wife''s resentment, the latter quickly grinned and retreated into the sofa. ?But those words just now clearly convinced Zhou Li. Chang Yuanchao, who is almost 50 years old, naturally thinks about ending his career safely, but Chang Haonan is only in his early twenties. It is when he is young and wants to work hard, so he really cannot let go of the opportunity he gets. "If you leave tomorrow...then I''ll buy you a ticket now. Are you going to the capital?" ??Zhou Li said as she walked to the door and took off her coat from the hanger. No need to buy a ticket. ?Chang Haonan waved his hand to stop his mother who was about to go out: Time is very tight, I will fly directly tomorrow. ?Zhou Li, who was halfway through her clothes, stopped immediately: "Flying? Well...that must be quite expensive, right? Besides, it seems like planes to the capital don''t come every day." "It doesn''t matter, there will be... there will be a temporarily arranged flight, I will just take that flight when the time comes." ?Zhou Li was obviously stunned when she heard this explanation. Chang Yuanchao, who had just retracted, also sat up straight again and looked back at Chang Haonan, who was still standing next to the phone. The two of them had a bit of shock in their eyes. Certainly not because of flying. From their point of view, their sons are already designing airplanes, so flying is not much more than eating and drinking. The focus is on the temporary arrangement. Generally speaking, you have to pay for the travel expenses back to school yourself. ?Of course, this is after all, calling people away in the middle of the holiday, so it is reasonable for the superiors to be directly responsible for solving Chang Haonan''s itinerary problems. ??However, the couple who have worked in the system of a small county town for half their lives, the most they can think of is to reimburse their travel expenses. ?After all, it is still an afterthought. You have to pay for it yourself first, and then you can get the money when you get back with the ticket. The process is often not so smooth. ? ?Its not surprising that if you meet an inexperienced cashier or accountant, your card will be stuck for several months or even half a year. So Zhou Li was just making arrangements to buy tickets. But Chang Haonan told them directly this time There is a plane, and it is specially arranged for his itinerary. The old couple naturally have no concept of chartered flights. In their understanding, this is a private plane. What kind of person does it take to have a private plane? The couple actually dont know this issue clearly. ??But at least the biggest official they have ever come into contact with, the Secretary of Liucheng City, definitely does not have one. ?But the son in front of me is there. After a long time, Zhou Li hung the clothes back on the hangers, the shock in her expression still not completely gone. Your dad is right, Xiaonan, you are ready to make a career (End of this chapter) Chapter 210 A request for help from the European Aviation Safety Agency Chapter 210 Request for help from the European Aviation Safety Agency ?Chang Haonan spent one night packing his luggage. Zhou Li made dumplings overnight. It is a tradition in the north to get the dumplings on the car and the noodles on the end. Although I took a plane this time, the principle is still the same. The next morning, the three of them had breakfast at dawn Although the plane arranged by the Science and Technology Commission would obviously wait for him to board before taking off, Chang Haonan decided to leave early so that he could have an afternoon to understand the situation after arriving in Haojing. ?According to his speculation yesterday, it is obvious that the problem that needs to be solved by himself is not just the MA60 model. There is no harm in arriving early to give him more time to prepare. Pay attention to your health outside and dont be too tired. ??Zhou Li stood at the door and straightened Chang Haonan''s clothes, who had already put on his backpack. ?Compared with Chang Haonan''s memory of the previous times when he went home, it may be because he has proven himself now, so his parents'' instructions have nothing to do with study and work, and the focus is instead on topics such as paying attention to rest. ??Of course, find a girlfriend as soon as possible. At this time Chang Yuanchao also came forward, holding an envelope in his hand: Also, spend money where you should. If its not enough, just call home and your mother and I will remit the money to you Just from the thickness of the envelope, it can be seen that the money inside is much more than what I brought with me when I went out several times before. No need to pay, Dad. Chang Haonan did not accept it, but pushed the envelope back: We are paid for our projects, as well as project bonuses and scholarships, which are enough for me to spend on myself. "Hey, take these with you as well." In the end, Chang Haonan still couldn''t resist his father, and the latter stuffed the envelope into the inner pocket of his coat: If you had taken the train, we wouldnt have been able to bring you so much money, but it should be safe to take the plane. Poor families are rich, so its okay to bring more money. Click ?Just when Chang Haonan had picked up his travel bag and was about to go out, the door of the bedroom on the other side suddenly opened. Chang Jiayao walked out of the room a little shyly, with her hands behind her back. Jia Yao, Im leaving. You study hard at home and dont let your parents worry too much. Chang Haonan looked at his sister who lowered her head and said nothing and asked. Brother, I... Chang Jiayao, who had always lowered her head, walked to the door, suddenly stood on tiptoes, stretched out her hands and put a hat on Chang Haonan''s head. I knitted a woolen hat for you, um... I had a lot of work last night, so its a bit ugly, but... ?Chang Haonan touched the top of his head. Why are you a little moved? ?So before her sister finished speaking, she reached out and gently rubbed the other person''s head. Since it was given by you, I will definitely wear it no matter what. Chang Jiayao raised her head after hearing this and suddenly expressed her determination to Chang Haonan: Dont worry, brother, I will definitely get into flight school this year! Okay, I believe you. After saying goodbye to his family, Chang Haonan took a taxi and went straight to the airport. Sanyan Airport is a dual-use airport for military and civilian purposes, and this time he went directly to the military aviation side. The plane that came to pick him up was also a Challenger 601 belonging to United Air Force. ? It is a very rare business jet in China. It was bought back in the late 1980s and specially used for transporting VIPs. However, this main function was quickly replaced by the CRJ200 with better performance, so several Challenger 601s were often used to run short and medium-distance charter flights in the system. ?However, the decoration and configuration inside the aircraft still retained the previous style, which also gave Chang Haonan the experience of flying a business jet for the first time in his life. Among other things, since the cabin pressure of a small business jet can reach close to 1bar (standard atmospheric pressure), while the cabin pressure of an ordinary passenger aircraft is only about 0.7-0.8bar, after getting off the plane at Hokyong Airport, he could hardly feel the pain of the journey at all. The feeling of fatigue comes. Although I didnt care much about this because I was young, there is still a big gap between being able to hold on and not feeling it. MD, this thing is good ?Before Chang Haonan walked down the gangway, he looked back at the small plane and thought in his mind: When the conditions are met in the future, we will have to do the same in China. At the same time, a group of people and three cars were already waiting not far from the parking space. Among the people who came to pick up the plane, in addition to Yi Yuanhe and Zhou Yonghang, who were expected, there were also Liang Shaoxiu, who came from Factory 182, and had previously participated in the formulation of airworthiness standards for anti-icing capabilities and related test flights, and students from Golden State University. Lin Guofan and Zhu Lan, as well as a lieutenant general, were people Chang Haonan had never seen before. ?Judging from his position, he should be the leader of this team. Fortunately, when Chang Haonan approached, the thin general stretched out his hand first and introduced his identity: My name is Huai Guomo, deputy director of the Commission of Science, Technology and Industry for National Defense, in charge of foreign technical cooperation. "I have heard Director Ding mention your name many times before, saying that Comrade Chang Haonan has made an indelible contribution to the development of our country''s aviation industry, especially in terms of independence. Today I saw that he is indeed a young talent." ?This sudden rainbow fart actually made Chang Haonan himself a bit confused. To be reasonable, he should praise the other party in turn at this time, but the problem is that Chang Haonan has never heard of the name Huai Guomo before, so there is nothing to brag about. In the end, I had no choice but to praise the entire Science and Technology Commission: No, this is what we as Chinese technicians should do. Furthermore, without the strong support of the Science and Technology Commission, it would be impossible to achieve anything. ??After some pleasant greetings, everyone got on the Coaster minibus located in the middle of the motorcade. Director Huai, is calling me here this time related to the plane crash in the Alps a few years ago? ?Chang Haonan quickly got to the point. Thats right, you guessed it correctly. Huai Guomo, who was sitting in the front row, turned around and replied with approval: Although the number of victims in this air crash was small, the impact was very severe. Furthermore, during the subsequent rescue and disposal process, another A119 helicopter also had an accident at almost the same location. Fortunately, the height of the aircraft was not high, so the death toll was not increased. Is it because of the ice? ?Chang Haonan has basically confirmed his guess. An aircraft accident may also be caused by mechanical failure or human factors. The accident of two planes at almost the same location can only be caused by the weather. Before the investigation report is released, it may not be rigorous to say this, but it should be the case. Professor Lin should be more professional in this regard. ? Lin Guofan on the other side took over the conversation: "The winter of 1996 to 1997 was a record-breaking cold winter, and the water vapor in the Alps was relatively abundant. So I speculate that the meteorological conditions, especially the content of supercooled droplets at near-earth altitudes, may far exceed the previous standards, and even It is possible that the current meteorological monitoring capabilities of many airports will be exceeded, resulting in underestimation of icing risks in route planning. Of course, the core problem is that the past certification standards for anti-icing and de-icing capabilities did not consider this situation, and were naturally not prepared to deal with it. ?This explanation is technically very reasonable and in line with Chang Haonans previous thoughts, so he nodded: The kinetic and thermodynamic properties of supercooled large droplets during collision and freezing are indeed different from ordinary water droplets. Actually, I personally think that the flight should be grounded under such weather conditions, but if the MA-60 is needed, the de-icing equipment can also be improved..." ?Before he finished speaking, he was interrupted by Huai Guomo: "Comrade Xiao Chang, I called you here this time not to continue to improve the MA-60, but because we have received a cooperation application from three parties: France Aerospace, Finmeccanica Group and the European Aviation Safety Agency. " "Oh, judging from the wording of their letter, it can also be directly understood as asking for help from us." "ah?" ?Chang Haonan didnt even react for a while: Will the Europeans lower their profile and come to us...to cooperate? (End of this chapter) Chapter 211 As expected of you, Chang Gong (209 Chapter 211 As expected of you, Chang Gong (Chapter 209 has been released) After a series of technical research and standard formulation started at the end of last year, China is now at the forefront of the world in the fields of ice accretion analysis and simulation, as well as anti-icing system design. There is no doubt about this. ?But Chang Haonan never expected that the arrogant old European people of the Ten-Three-Three-Star Banner would admit this in such a short period of time. Its so bizarre. ? This was the 1990s, when the idea of ??a great European union was at its peak. Not to mention China, the EU even dared to challenge the United States. ??The euro that is being prepared for issuance is one of the weapons that challenges the financial order of the U.S. dollar. ?In Chang Haonans impression in his previous life, these Europeans, especially Western Europeans, generally do not look back until they hit the wall. ?Only when you are desperate will you admit that others are better than you, and you will have to be tough-mouthed for a longer period of time. ?For example, some European countries have been building their own railways for more than ten years without making any progress, so they have to ask China Railway Construction to do the construction. At the same time, they do not forget to say a few nonsense words such as "affecting national security". ?This performance simply exceeded cognition. Ah, at the beginning, we were actually surprised. After all, in the past, we have seen how difficult it is for Europeans to deal with projects such as the J-7M. As the deputy director in charge of external technical cooperation, Huai Guomo can understand Chang Haonans shock: "But in the recent period, on the one hand, we have cooperated 50:50 with AgustaWestland on the MA-60 project, instead of simply introducing other people''s technology. On the other hand, we have also been involved in Boeing''s acquisition of McDonnell Douglas In terms of matters, we chose to side with Europe, which not only enhanced mutual trust, but also established a relatively long-term communication channel. This time can be regarded as the total harvest of the previous hard work. As for the specific situation, we will have to wait for a while to arrive at the place. Discussed with people from Europe in detail. At this time, Yi Yuanhe, who was sitting at the front and had been silent just now, suddenly said: Director Huai, these things you mentioned seem to have something to do with our Comrade Xiao Chang? The sudden words caused the whole car to fall into a brief silence, leaving only the sound of the engine and the hum of the wind outside the window. It seems...thats really what happened. Everyone has always known that Chang Haonan has done a lot of things in the past year, but because the business span he is involved in is so large, most of them are classified projects, and after all, he is just a rising star who suddenly broke out. It takes less than a year to produce results at a time, so no one does a systematic sorting out. But today, when Yi Yuanhe said this, the people in the car suddenly came to their senses. From the new wing that can almost be said to give the MA60 a new lease of life, to the overhaul of the turbojet 14, which led to the establishment of independent aviation standards during the test, to subsequent research on the aircraft''s anti-icing system, and at Boeing The acquisition of McDonnell Douglas, and even the entire development strategy of domestic large aircraft... One link after another, they are all connected! The connection between Chang Gong is quite good Liang Shaoxiu said in a half-joking tone. Wherever, some have caught up. Chang Haonan waved his hand: I can only say that this independent development route is suitable for our aviation industry, and I just pushed it at the right time. This is not modesty. When he was just reborn, he really didn''t think about such long-term things. He was just preparing to make some technological breakthroughs with the help of his own experience and the system. ??Its just that as more and more projects are involved, the impact has gradually accumulated. ?For example, when doing high-altitude platform testing in Fucheng, the original intention of Chang Haonan to propose the establishment of a new standard was mostly to make it easier for him to use the knowledge from his previous life. If it weren''t for a group of people who still persisted in the path of self-reliance even in the most difficult times, if it weren''t for Ding Gaoheng and others who immediately took it from the "Guidelines for Evaluating the Import Total Pressure Distortion of Aviation Turbojet and Turbofan Engines" If we seize the opportunity, this matter may be limited to aviation engine stability evaluation, or even limited to the turbojet 14 model itself. Of course, since that time, Chang Haonan has indeed begun to consciously focus on some key directions that will affect the overall aviation industry project. But as for the current matter, it has indeed been affected by many black swan events, so much so that Chang Haonan himself did not expect Europeans to lower their profile so quickly. You cant say that. Its Chang Gong who has raised our level in order to seize these opportunities. ?Zhu Lan, who was sitting next to Lin Guofan, gently smoothed the hair beside her ears, and then turned around and chimed in: For example, this time, if we hadnt conducted a natural freezing experiment with the Italian named Colombo last year, even if they were interested in foreign cooperation, they would have gone to the Russians at most and would not have been able to find us. These words are quite high level. ??Not only did she praise Chang Haonan along with others, she also emphasized her husband''s role in front of Huai Guomo without naming her. In short, it was another round of mutual appreciation. For a time, the carriage was filled with a happy air. ?Chang Haonan was a little embarrassed by the series of compliments. ?Some things can be mentioned inadvertently and let others know. However, if mentioned repeatedly, it will appear too deliberate. Besides, the two key figures, Ding Gaoheng and Du Yishan, knew what he was doing. This is enough. So he changed the subject following what Zhu Lan just said: Speaking of which, Professor Zhu just mentioned Rosie Colombo, does this matter have anything to do with him? Hearing this question, several other people in the car who had participated in the natural icing test flight all smiled. Finally, Liang Shaoxiu explained: "Chan Gong may not have paid attention to the situation here since he left. Our old friend Mr. Colombo was transferred to the parent company Finmeccanica after returning to China and is currently responsible for the international aviation cooperation business." He was the first to propose this time that he could cooperate with us in anti-icing technology and airworthiness certification under natural icing weather conditions. No wonder it is so. Chang Haonan suddenly realized. In fact, factional struggles and conflicts are also very serious in large foreign companies. For example, after Colombo, who was born in AgustaWestland and was responsible for cooperation with China, took up the post of international cooperation in the parent company, he would naturally make the resources in his hands more inclined. The project I was responsible for in the past was the MA60. In this way, Colombo''s personal interests will be tied to China''s interests and become at least a relatively reliable ally. It''s just that in the 1990s, most management majors in China were still praising the seemingly lofty management concepts and complicated system construction of Western large companies, and there was not much research on these truly useful things. , and therefore suffered a lot of losses in terms of personnel rotation. It wasnt until around 2010 that I gradually came back to my senses and started to build a more systematic network of people. After thinking for a moment, Chang Haonan concluded: "In this case, I think we have to find a way to operate the Colombo line in the long term. It would be best to make his position there higher. It will be good for us." (End of this chapter) Chapter 212 You cant do it, we can do it! Chapter 212 You cant do it, but we can do it! Chang Gong, do you want to direct the personnel appointments of Finmeccanica Group? Liang Shaoxiu asked with a smile. "I was serious." ?Chang Haonan answered in a very calm tone. ?Even the atmosphere in the carriage became serious. Everyone focused their attention on him again, ready to hear what he had to say: "For example, during the cooperation process, if he comes forward, we can consider making some concessions on non-core issues, and if it is someone else, we will insist on the conditions, so that when there is any further cooperation in the future, We can also occupy some advantageous positions. "As for our old friend Colombo himself, because he was promoted and raised on the bonuses we gave him, his foundation lies in the cooperation project with China. When it comes time to choose a partner, he even If you only consider your own interests, you will tend to us, just like this time." After saying this, the people in the car basically had tacit expressions of understanding. ??Everyone is in a mixed system, so they naturally understand this routine. Even if they have never used it, they have at least seen it before. Its just that no one has thought of using the same method on foreigners in the past. Of course, from another perspective, China''s bargaining chips were really limited before, and there were no opportunities for technical cooperation in the true sense. The so-called "cooperation" was essentially exchanging money for technology, which was indeed not very practical. Have the initiative. Huai Guomo did not participate in the discussion just now. He just looked at Chang Haonan not far behind him from the corner of his eye. ?Before setting off on this trip, he had heard this name many times from his old superior Ding Gaoheng, as well as some things related to the latter. However, at that time, Huai Guomo paid more attention to Chang Haonan on the technical level, thinking that he should be an engineering genius. This time he specially invited the latter here because the upcoming negotiations involved a large number of Issues related to anti-icing and de-icing require professional attention. But after seeing the other person today, and after being reminded by Yi Yuanhe just now, he realized that although this student-like junior was young, his vision, or overall view, was very vicious, and his temperament was also very mature. It can be seen from Chang Haonan''s layout in the past year. As a technical genius who had little influence at first, he did not rush to express his determination and shout slogans as soon as he came up. Instead, he worked step by step, allowing his superiors to first see the possibility of independently developing an aviation industry system, and then after the merger of Boeing and McDonnell Douglas The necessity of this work has been proven. The subsequent development was a matter of course. Looking at it this way, it seems that the entire Science and Technology Commission is involved in his calculations... It wasnt until the convoy arrived at its destination that Huai Guomo, whose thinking had completely changed, ended his brainstorming. He came to a conclusion: Chang Haonan should also be involved in the negotiation process. After getting off the car, Huai Guomo immediately made this request to Chang Haonan. This is exactly the arrangement that Chang Haonan himself hoped for. The first round of negotiations was scheduled for the afternoon of that day. ?Chang Haonan temporarily borrowed a suit and followed the Chinese negotiating team at the back. The only person who had ever met him was Rosie Colombo, a representative of the Finmeccanica Group. Naturally, he would not focus too much on a person in the corner of the negotiation table. Besides, it doesnt matter if you are recognized. In technical cooperation negotiations, it is reasonable for me to bring a technical person with me, right? In short, this is how the first formal contact between the two parties began. Generally speaking, both sides do not expect to achieve any breakthrough results in the first round of negotiations. They mainly want to get familiar with each other and reveal some specific information. Sometimes some verbal quarrels will be added to establish the tone of the negotiation. Soon, Chang Haonan got and guessed a lot of the news he wanted from the few words expressed by the other party. Simply put, the core reason why Europeans are so easy to talk to this time is because of the pressure from the United States. ??The so-called pilot''s statement that the collision was intentional was completely a smoke bomb used to confuse the media. In fact, within a few days after the accident, investigators suspected that the ice on the wings was caused by weather factors. This is quite critical for the European aviation industry. ?About two years ago, in 1994, American Eagle Flight 4148 crashed near Chicago O''Hare International Airport while circling for landing in an attitude almost identical to that of this accident. The accident model happened to be the Italian-French joint venture ATR72. The cause of the accident given by the FAA was that the average diameter of supercooled water droplets in the area at that time exceeded 100 microns, and the largest was even 2 millimeters, which far exceeded the standards and requirements related to icing and anti-icing in existing standards. Hence, the flight encountered sudden formation of supercooled clouds and water droplets during flight, resulting in a mixture of rough ice and clear ice on the fuselage. The expansion de-icing device on the ATR72 aircraft was completely incapable of dealing with this level of ice accumulation, but the pilot did not know this. Instead, he opened the **** according to the normal procedure and prepared to lower the nose of the aircraft for landing. The following plot is relatively close to those crashed Y8s in China. The aircraft, which was already close to its limit, lost its balance due to the action of lowering the **** and fell to the ground. Obviously, although there has not yet been a formal investigation report on the EMB120 air crash, considering that this aircraft, like the ATR42, uses expansion de-icing as the main de-icing method, I am afraid the results will be similar. This is where the FAA gets into trouble. Two air crashes caused by supercooled large water droplets (SLD) icing weather conditions occurred intensively within three years. Obviously, they can no longer be regarded as small-probability events. Therefore, the FAA proposed to update the part of its airworthiness certification standards related to anti-icing, which is Appendix C of FAR-25, to include the mixed icing conditions of freezing fog/rain and ice crystals & supercooled water droplets, which is 100 microns. Level droplet diameter certification content. ?At this time when public attention is extremely high, the reason for using aviation safety, a big stick full of accuracy, is naturally not just because the FAA has good intentions. ?As far as the field of aircraft ice accretion is concerned, whether in theory or engineering, Americans have always been far ahead of the world (at least before), relying on the advantageous climatic conditions of the Great Lakes region. As for the new conditions they proposed this time, European aviation companies would not have time to study them on their own. ? Even JAA (the predecessor of EASA) has difficulty in conducting independent review. Once the standard is adopted, the entire European aviation industry will be subject to the FAA in this regard for at least a few years. The condition proposed by the United States is that if the EU can approve the merger of Boeing and McDonnell Douglas, they will suspend the proposal of this amendment. ? Faced with this kind of card-making game, the EU, which is still ambitious today, is naturally unwilling to give in. But there seems to be no good way to deal with it. Just when everyone was at a loss, Rosie Colombo, who had just been promoted to the parent company, told about his experience in participating in natural icing test flights, and said that China''s Golden State University has conducted in-depth research in this area and has even been able to Stably track qualified meteorological conditions and conduct airworthiness certification. Thats why this negotiation took place. The conditions proposed by the European representatives are that considering that both parties have the same interests in the Boeing-McDonnell Douglas merger, they hope that China''s CAAC can work with the JAA to delay the amendments proposed by the FAA and establish a joint laboratory. The ice accumulation situation and anti-icing methods of supercooled droplets with a diameter of 100 microns under climate conditions were studied. Chang Haonan laughed directly at Pu Chuxin''s condition. ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ??As for the conditions for joining forces to delay the FAA, they are fair, but also stupid. ?At present, the world''s attention on air crashes has not passed, and aviation safety is politically correct. Speaking the opposite at this time will undoubtedly have a negative impact on the public relations image. Of course, this is a negotiation scene after all, and it cannot be unorganized or undisciplined, so Chang Haonan wrote a note with his thoughts and handed it to Huai Guomo, who was sitting in the middle of his negotiating table, and quickly got a hint that he could speak. We believe that instead of delaying the revised standards proposed by the FAA, it is better to focus on anti-customers. Since they want to conduct research on the 100 micron level, we will get there in one step and directly propose to conduct anti-icing research and airworthiness certification under SLD climate conditions! ?Colombo across the street was stunned for a moment when he saw Chang Haonan''s face, and then his eyes widened suddenly as he apparently remembered his identity. SLD climate conditions? The representative sent by JAA is named Anne Valette. At this time, she is looking at Chang Haonan with a slight frown: The research object of SLD conditions is an order of magnitude higher, reaching the millimeter level. There is no technical reserve in this area. Have you ever considered how the FAA will respond if it is not scared back? Obviously, she thought Chang Haonan meant to bluff. However, it is not. Ms. Valette, strictly speaking, you dont have SLD-related technical reserves, but we do. ?Chang Haonan sat up straight and said slowly. (End of this chapter) Chapter 213 some little oriental shock Chapter 213 Some small Eastern shocks ?Chang Haonan''s loud words made the entire negotiation venue quiet down instantly. In fact, before this negotiation, the Chinese side did not know the specific reason why the European side suddenly came to cooperate, so there was no way to prepare in advance. It could only call in relevant technical personnel to show off their skills. So except for Huai Guomo, who had just seen the note, and Lin Guofan, who had participated in the research, everyone showed expressions of disbelief for a moment. ??People here in China dont know that they are so awesome. Even the recorders on both sides had trouble deciding how to record this content, so they had no choice but to raise their heads and look at the speaker who seemed to be "talking wildly". The European delegation on the opposite side quickly started discussing in whispers after a brief moment of silence. ?One of the old men with silver hair and glasses stared at Chang Haonan for a long time before he asked. Im sorry, I need to confirm again. When you talk about SLD conditions, do you mean supercooled droplets with millimeter-sized particles? ?This person also looks like a technician, mainly because his eyes do have the look of a mad scientist after seeing his research subject. Of course, and I can reveal some more precise information here. Chang Haonan, who had already expected to face similar questions, nodded almost without thinking and replied: Specifically, we have conducted theoretical and engineering studies on the phenomenon of large-scale droplets ranging from 400 microns to 1 mm in size impacting solid surfaces at high speeds. "The current results show that the icing mechanism of large-scale droplets is very different from that of ordinary droplets below 100 microns studied in the past. Some basic assumptions in the past, such as ''the water droplet impact process does not produce thermal motion'', do not work under SLD conditions. Therefore, it is necessary to create a new set of research methods and even a theoretical system. After hearing what Chang Haonan said, the white-haired old man obviously became more excited: Then what method did you use to explain the influence mechanism of typical critical ice shapes on changes in airfoil aerodynamic performance? In addition, from the perspective of airworthiness and safety, is there any method to evaluate the specific aerodynamic characteristics of airfoils after icing..." Ahem ?Before he finished asking a series of questions, he was interrupted by a light cough. It is simply outrageous that such a question could be asked at the negotiation site. ?Chang Haonan narrowed his eyes slightly and glanced at the name tag in front of the other party Fernando Lorenzo. Chang Haonan vaguely remembered that he had read a paper written by this person in his previous life, but he could not remember what it was about. "Mr. Lorenzo, I think I need to remind you that this is not an academic seminar, but a negotiation site. If you are really interested in these issues, then I will be happy to talk to you after an agreement between us is reached. Your technical staff share these research results. ??The few words just revealed are just to convince the European delegation that China has really studied the SLD icing problem. Judging from the other party''s reaction, there is no doubt that the purpose has been achieved. ?Then of course he can''t reveal any more information. When Chang Haonan said this, Lorenzo also realized that the situation was not right and showed a somewhat embarrassed expression. ?However, as the technical advisor of the delegation, he did not have decision-making power, so he turned to look at Rosie Colombo and Anne Valette sitting in the middle with questioning eyes. Although Aerospace France and Airbus also sent representatives to participate in this negotiation, as peers and competitors of China Airlines to a certain extent, they were obviously not as good as Finmeccanica and JAA in this negotiation based on cooperation. The two people play a greater role, so these two people are considered the core members of the delegation. ?However, even for Colombo, who has participated in the entire MA-60 icing test, the amount of information he came into contact with tonight was indeed a bit too much. ??If what the Chinese said is true, then their research in the field of icing and anti-icing has even reached the front of the Americans. They had never thought about rebelling against General Yijun before, so they were naturally unprepared for the relevant negotiation conditions. ? And neither Colombo nor Valette are full-time technicians. They only have some understanding of SLD-related fields, and it is impossible to make an impromptu decision on the spot. So the two looked at each other and saw the same meaning in each other''s eyes. As for the idea just put forward by your delegation, we need to report it to the European headquarters, and we are unable to give an accurate answer for the time being. After being shocked by Chang Haonan''s blow to the head, Valette''s tone was no longer as sonorous and powerful as it was at the beginning. Her speech means that she is ready to end this round of negotiations. Considering that the things that both parties want to discuss are no longer on the same level, and China also needs to confirm some technical details with Chang Haonan and Lin Guofan, this is actually the only way out. Its just a matter of seeing which side cant hold back first in the end. It is naturally best for Europe to take the initiative now. So the first round of negotiations came to an end. Then naturally there will be a dinner party that has been arranged long ago. ??Although after determining the reason for the other party''s request for cooperation, Huai Guomo and others had many questions to consult with Chang Haonan and Lin Guofan, but they still had to complete the necessary procedures. During the dinner, in addition to his old acquaintance Colombo, Chang Haonan also chatted with Fernando Lorenzo and learned that the other person was a professor from the National School of Roads and Bridges in Paris, and his research direction was fracture mechanics and fluid mechanics. French universities are relatively casual in their naming. Although this National Road and Bridge School sounds like a junior college, it is actually one of the top 100 science and engineering universities in the world. In the 1990s, it was better than all schools in mainland China. The rankings are all high. Chang, have you, China, built an icing wind tunnel like NASAs? Lorenzo is obviously still very interested in the research Chang Haonan just mentioned. "Professor Lorenzo, icing wind tunnels like the Lewis Center are indeed important, but their main role is still focused on testing the aerodynamic characteristics of the airfoil after icing. The research we are currently conducting is more basic and is based on past experience. The process of cold droplets hitting the surface begins, deducing the entire process of ice formation. Chang Haonan held up the wine glass filled with white grape juice with one hand and made several gestures in the air with the other hand: "Limited by the current wind tunnel technology, the influencing parameters that can be obtained by the experiment, the scope of the experiment, and the versatility of the research methods are all limited. Therefore, in this field, we mainly rely on computational fluid dynamics technology for numerical analysis and key analysis. Conduct test flights under research conditions. Flight test directly after numerical calculation Lorenzo looked incredulous: Wouldnt that be very dangerous? Its really dangerous. What the old professor didnt expect was that Chang Haonan admitted this point directly: So we will first select the most reliable working conditions for test flight. After verifying that the simulation results within this range are OK, we will gradually increase the severity of the test flight environment. ?This series of answers are half true and false. Even if Lorenzo goes to Colombo later for verification, it is impossible to find out anything fishy. For example, they have actually only conducted test flights in a 100-micron level supercooled droplet environment before, but the theory that Chang Haonan and Lin Guofan worked out before can indeed predict the icing situation under SLD conditions more accurately, but it requires some analysis. Theories and hypotheses are adjusted. I didnt go on a test flight just because SLD actually has a very extreme climate, and its basically a once-in-a-century climate in China. It is not impossible to adapt the aircraft to such conditions, but it requires all-round efforts from airfoils to skin materials to anti-icing devices. The cost is extremely high and it also affects the performance of the aircraft. It is really better to strengthen the level of weather detection. Once this kind of weather is discovered, the flight will be immediately grounded - In fact, this is also the prevailing method in later generations. ??But now that the FAA is going to use SLD as a bargaining chip 15 years in advance, Chang Haonan doesn''t mind giving them a little Eastern shock. (End of this chapter) Chapter 214 Huaxia Aircraft goes to the world! Chapter 214: China Aircraft goes global! Lorenzo was obviously blindfolded and remained stunned in silence for a while before asking again: "In this case...how many flights do you have to fly to complete a research project?" You must know that the cost of test flights is much higher than that of a wind tunnel, not to mention that icing is not a 100% chance to seize every takeoff, and a large number of sorties will definitely be wasted. He thought he didn''t mean to look down on others. In fact, judging from what he had seen in the past few days, Huaxia should not be so rich and wealthy. It does require a lot, so as I said just now, we can only study 400 microns to 1 millimeter, and there are still many details that need to be further improved and excavated. Chang Haonan took a sip of grape juice without changing his expression: "If this negotiation can proceed smoothly, we can consider jointly building an icing test center like NASA. Of course, it is for SLD research after all, and the equipment must be more advanced. The results of the research will be shared by both parties. " Build together? ?Lorenzo on the opposite side felt that there might be a pitfall in this statement. Thats right, you provide the money and we provide the technology. ?Chang Haonan was not prepared to hide his purpose. In fact, if Ms. Valette had not just quickly proposed to suspend the negotiations, he would have planned to bring this matter up in one go today Give Fucheng an icing test wind tunnel for free. After all, Valette had just made a mistake with his mistake, and JAA had almost no technical reserves in the field of icing and anti-icing research under SLD conditions. Of course, she can''t be blamed for this. The original negotiation plan did not include this part that Chang Haonan improvised, which was equivalent to a sneak attack. But in any case, since the core technology needs to be provided by China, it is reasonable for you wealthy Europeans to provide some money to support some research hardware, right? "this" In fact, according to Lorenzo''s idea, if the Chinese people can really achieve the research level they claim to have in the research on the icing mechanism, this matter will be agreed to. ?But after all, he couldn''t make a decision, so he had to end the topic a little abruptly: This issue still has to be decided during the negotiation process between the two parties. Anyway, its a pleasure to meet you today, Professor Chang. After finishing speaking, he raised his wine glass and clinked the glasses with Chang Haonan. "You''re too anxious. I''m not a professor yet, I''m just...well, I''m studying for a doctorate, but I''d like to lend you some good advice." The latter replied with a chuckle. I saw the translator beside me relay this sentence to Lorenzo, and then the old professor who was drinking almost choked because of this sentence. After the dinner meeting, members of the Chinese delegation quickly returned to the hotel they had arranged and held a meeting overnight. Comrade Xiao Chang, none of you here have read the note you just wrote to me. Why dont you just talk about your thoughts? After a simple opening, Huai Guomo, as the host, directly raised the topic to Chang Haonan Comrades. ?Chang Haonan pulled the desktop microphone in front of him from the side: "In the past few years, although there have been differences between the European and American aviation industries, the common interests and demands are still greater than the contradictions. For a late-developing country like us, it is very difficult to break the situation, so this negotiation is a once-in-a-lifetime opportunity for us. Opportunity." "Comrade Xiao Chang, I remember that you were opposed to in-depth technical cooperation with Europe at the beginning, not to mention that we still have the technical advantage in terms of icing and anti-icing."??????? This kind of unrecorded internal meeting does not have so many rules, so Someone in the venue quickly raised a question directly: So what can we gain from this collaboration? Or what do you think we should ask for? "Technical cooperation is of course not the core issue. If it can be achieved, let JAA pay for the construction of an icing wind tunnel for both parties. Of course, the location must be chosen domestically. It can also be regarded as adding to our aviation infrastructure. If it cannot be achieved, then it depends on us. Its not a problem for me, its just that Europeans may need us to help with design for a long time to come. ?Chang Haonan waved his hand and replied. When he said the last sentence, that is, the Europeans wanted to ask China for help in designing aircraft, everyone in the room smiled knowingly. No matter which result, it sounds so wonderful. ?But this is not over yet. After Chang Haonan paused for a few seconds, he said the next sentence: More importantly, I hope that through this negotiation we can achieve reciprocity and mutual recognition of civil aviation products between our CAAC and the European JAA. If this can be achieved, we can even consider making some concessions in specific technical aspects. The conference room, which had been noisy just now, suddenly fell silent. ? Several people who had just picked up their water glasses and were about to drink water subconsciously stopped. ?At this time, everyone finally knew why Huai Guomo agreed to Chang Haonan''s idea at the negotiation site that was somewhat radical and did not conform to the usual tone of negotiations on China''s side after receiving the note. ?This temptation is indeed too great. ? With AgustaWestlands investment and participation, it is almost certain that the MA-60 will have difficulty obtaining European airworthiness certification. But what Chang Haonan said is not a matter of two models at all. ?If the relevant agreement is indeed signed, then all aircraft manufactured by China in the future will be equivalent to passing the JAA''s certification as long as they pass its own airworthiness certification. It is extremely important for the development of the entire civil aviation industry. Although EASA has not yet been formally established, the influence and recognition of its predecessor JAA are also constantly increasing, and it has a tendency to rival the US FAA. For many countries that do not have independent certification capabilities, one aircraft has obtained European and American certification Aspect-certified aircraft will obviously be more acceptable. So this not only means that Chinas passenger aircraft will be able to enter the European market in the future. The Middle East and Southeast Asia are equally significant. Especially the former. Those airlines owned by the tycoons in the Middle East, such as Qatar Airways and Emirates Airline, are still in the development stage and have not received much attention from major aviation manufacturers. ??But these airlines are really good examples of the poor young people who have lived in Hedong for 30 years and Hexi for 30 years. Chang Haonan, who came back from more than 20 years ago, is very aware of the exaggerated scale they will develop in the future. ? Among other things, Emirates has the largest Airbus A380 fleet in the world, with 123 aircraft! ?This is the result of canceling a large order. The original plan was to buy 163 aircraft. Needless to say, the rest of the small planes are not to be mentioned, and the big investors dont even blink an eye when buying them. This is a market that makes people drool just by looking at it. (End of this chapter) Chapter 215 Cutting a hole in the airworthiness barrier Chapter 215: Making a Hole in the Airworthiness Barrier After receiving this kind of heavy news, people need time to brew their emotions. So Chang Haonan deliberately remained silent for a little longer. He could even clearly hear the heavy breathing of the two people next to him. Although people here still dont know how terrifying the aviation market will develop in the next twenty years, just thinking about it, the Chinese will one day be able to sell aircraft to Europe, it is enough to make these old people The military industry and old aviation industry are very excited. Even Huai Guomo, who had already understood Chang Haonan''s general thinking through that note, felt his heartbeat slow down at this time. One second, two seconds As time gradually passed, Chang Haonan could see that more than one person wanted to speak. They have many questions to ask. But for a while no one could make a sound. In the end, it was Yi Yuanhe, an old comrade who had experienced great storms, who recovered first. ??Although he was also looking forward to the prospects described by Chang Haonan, he still forced himself to calm down quickly despite being well-informed. Because this kind of extremely wide-ranging thing is often countless times more complicated than brainstorming when it is actually started. Especially in this era, JAA is still an organization without mandatory binding force. Comrade Xiao Chang. Yi Yuanhe took a sip of water first to suppress the slight trembling caused by excitement: Promoting equivalence and mutual recognition of civil aviation products between China and Europe is a very complicated task, and to be fair, it has almost no benefit to them. Are you so sure that you can convince the other party in the negotiation? "Although I have not had much contact with people in the civil aviation system, I think the biggest bargaining chip in our hands should be the huge potential of China''s aviation market. But this card has been used against Boeing and McDonnell Douglas before. Now facing Europe, we only have Im afraid its hard to match them with ones own icing and anti-icing skills, right? ?Although this question seems to be throwing cold water on it, it is indeed the actual situation. It is not that other people are unaware of this fact, they are just too caught up in the short-term excitement to think about it in detail. Now that it was brought up by Yi Yuanhe, other members of the surrounding delegation gradually returned to reality. In the final analysis, Chinas own aviation industry is not developed enough. ??If you can build a mainline passenger aircraft that is sufficient for the domestic market entirely by yourself, you will be able to take the absolute initiative in this game without even having to perform very well. Unfortunately not. And this will not happen in a short time. A pair of eyes, either doubtful or expectant, focused on Chang Haonan. ?Seeing this situation, Huai Guomo, who was sitting in the main seat but only said one sentence at the beginning of the meeting, showed a somewhat playful smile. In fact, he had considered this issue when he saw the note. ?Originally, he should not have agreed to engage in such an extraneous matter. But the chat with everyone on the road made him finally make a different decision Since Chang Haonan has previously proved that he is not just doing things casually with a hammer and a stick, but has a systematic idea for the development of the aviation industry, then it is better to believe him! The worst case scenario is that the progress of the negotiations will return to zero. We have just talked about the first round, and it is acceptable even if we start over. Now, Huai Guomo looked at Chang Haonan next to him who looked like he had everything under control, and knew that he must have made the right bet. This young man is indeed thoughtful. Its just that, perhaps because the atmosphere was not in place yet, I didnt say it out loud. ?So he put down the tea cup in his hand and took the initiative to give the other party a greeting: What Mr. Yi said is indeed a big issue, but I think Comrade Xiao Chang may have already considered it? Chang Haonan originally felt that the heat was almost over, and was about to explain, but he happened to use the **** given by Director Huai to come down: If we want Europe to completely liberalize, the current chips are really not enough. But I didnt say that we should achieve full reciprocity and mutual recognition in one step. Suddenly enlightened. You mean, we need to do it in stages? Someone asked. Yes, its like boiling a frog in warm water. ?Chang Haonan nodded confidently, and then analyzed methodically: "Main line aircraft such as the 737 and A320 are the lifeblood of the European aviation industry, and Airbus will be very sensitive to this level. If we directly talk about comprehensive reciprocity and mutual recognition, it will only irritate their nerves and make negotiations difficult. It will not be small, and it may even directly lead to the breakdown of the temporary alliance formed due to the McDonnell Douglas Boeing incident. This risk is too high and the gain outweighs the loss. "But we can do it step by step. What Europe is most worried about right now is ATR. If the FAA questions the existing anti-icing standards or even the entire expansion deicing technology, then their flagship product, the ATR42/72 aircraft, is likely to be It lost a large amount of market share in a short period of time and was occupied by Bombardier C-8 from the North American faction. ?At this point, someone has already understood what he meant: So in order to compete with North America, the Europeans will not bite the bullet in the regional airliner field? Thats right. Chang Haonan was in a good mood when he saw someone talking to him. He tapped the table with his fingers: Airbuss business does not involve regional aircraft. As for the remaining Fokker and BAE companies, they have long since passed away. As long as ATR is willing to make concessions, JAA has no reason to obstruct it. "We can use the maximum takeoff weight or the maximum number of passengers as a reference standard. This time we will first reach a mutual recognition of airworthiness certificates for small and medium-sized aircraft with 50 tons and less than 100 seats with JAA. As a price, we can provide ATR42/ 72 Aircraft independently designed an anti-icing system that can adapt to certain SLD conditions, and licensed a basic weather forecast and icing risk determination software to JAA for free, which is the one I developed together with Professor Lin Guofan. Wait...basic model? ? Lin Guofan, who was suddenly cueed, looked confused: Didnt we only make one version? Did you also secretly make an advanced version? "of course not" ?Chang Haonan covered his face: "But they won''t know, they will just think that we have better ones, and Professor Lin is indeed iterating new algorithms and versions, right? Even if we borrow a high-end version, we will develop it later. Come out and pay it back. The conference room burst into laughter again. After all, the loan metaphor is apt. At this time, Huai Guomo ended the topic: Well, Comrade Xiao Chang has just introduced his ideas in detail. The old general swept the whole place with sharp eyes: "Although we are still only working on mutual recognition of small aircraft, everything is difficult at the beginning. This time is equivalent to tearing a hole in Europe. When we build larger aircraft in the future, we can talk to them about further adaptation. With mutual recognition between airlines, the difficulty should be much lower. So, I think, although there are certain risks and difficulties, it is still worth a try. With Huai Guomos endorsement and Chang Haonans persuasive explanation just now, the entire delegation naturally determined the direction of the next negotiations and unanimously approved the decision to appoint the latter as the temporary deputy leader of the delegation. When the voting results came out, a warm current surged in Chang Haonan''s heart. Its not that the temporary deputy head of the delegation is very important. It is a kind of passion. From Chang Haonan''s rebirth to now, he has indeed done a lot of things, changed many models, and even the fate of many people. But when it comes to the opportunity to directly reverse the history of the previous life, this is the first time! (End of this chapter) Chapter 216 If there are no conditions, create conditions! Chapter 216 If there are no conditions, create conditions! ?Those who have not experienced ARJ21 and C919 in the previous life will not know how much China has suffered in obtaining airworthiness certification. It does not mean that if you use the subsystems provided by Europe and the United States, others will give you a green light in terms of airworthiness certification. ? Airbus and Boeing are doing well in their monopoly business, so how can they easily allow a third company to participate? ?Although models that have not been approved by EASA and FAA will not be unsaleable, it is indeed very difficult to find large foreign customers. But the most regrettable thing is not that there was no opportunity from the beginning, but that there was an opportunity but failed to seize it. In fact, in the late 1990s, China had already established quite good relationships with airworthiness certification agencies in many European countries. It had the opportunity to make some breakthroughs while taking advantage of the process of reorganizing JAA into EASA. ?However, Chinas accumulation in the aviation industry in the previous life was indeed too weak, and it was unable to produce any practical technologies that Europe urgently needed like it does now. More importantly, in the original timeline, in the years at the turn of the century, the domestic civil aviation industry, including the entire CAAC, was in the midst of huge turmoil caused by the failure of the highly anticipated MD90 manufacturing project. , is wavering on whether to build domestically produced passenger aircraft, what kind of domestically produced passenger aircraft, and whether to move closer to FAA or EASA standards. In the end, this time window was completely missed. After passing this village, there is no such store. By the time the domestic passenger aircraft project, which was pushed by many parties, finally came to fruition, EASA had long since stabilized and established airworthiness barriers similar to those of the FAA, leaving no room for outsiders to operate. Now, due to Chang Haonans own intentional or unintentional operations in the past few months, as well as the occurrence of a series of black swan events, an opportunity to solve this hidden danger from the source has appeared in front of him. Must succeed! After the general direction and basic ideas are determined, the only thing left is the specific work. I judge that judging from the current situation, the European side should be tempted by Comrade Xiao Changs idea of ??focusing on guests during the last negotiation. Huai Guomo opened the minutes of the first negotiation in front of him and analyzed the crowd: But they will definitely have concerns, especially about our technical level in the field of icing and anti-icing, which is the core of the entire plan and a part that Europe has absolutely no control over. Chang Haonan has naturally considered this issue. So after Huai Guomo finished speaking, he took over the topic: "It must be admitted that the overall level of China''s aviation industry is not as good as that of Europe and the United States, so from an objective point of view, this concern, or prejudice, is reasonable. Then what we have to do is to use facts to prove our strength. Eliminate their prejudices!" Use facts...that is to say, we need to directly conduct a demonstration test for them? Use our aircraft to fly around in SLD climate conditions? ??The person who is most enthusiastic about the issue of mutual recognition of regional aircraft is Yi Yuanhe. After all, this is directly related to whether the MA-60, which he is responsible for designing, can have a good market: "But in this case, MA60 must be further improved. The current anti-icing system design still only considers the 4 types of capabilities in our new standards, that is, the average diameter of supercooled droplets is 100 microns, and the maximum diameter is 100 microns. Not larger than 200 microns." Lin Guofan, who was sitting on the other side, also added: "It''s not just a problem for airplanes. Generally speaking, if the humidity is high enough to form millimeter-sized droplets, it will have snowed long ago. Therefore, the climate condition of SLD itself is rare, even in the Great Lakes region. Its already mid-February and its almost impossible to find suitable test airspace in the country. After hearing this, Yi Yuanhe quickly asked: Generally speaking, when will the climate conditions meet the requirements? Basically, there are only three months from the end of October to the end of December every year. Lin Guofan, who has been tracking domestic low-altitude meteorological conditions for twenty years, replied almost without thinking: And it depends on luck. But we cannot wait another ten months. The revision of the airworthiness standards for SLD is an urgent matter and cannot be delayed until the end of the year. There is no need to wait until the end of the year, or in other words, there is no need to wait for the naturally occurring SLD climate. ?Seeing that several other people had already refined the most critical issues through their words, Chang Haonan went straight to the topic: If there are no conditions, create conditions. We can artificially create an environment that meets the requirements. ??If it were left to normal times, the following people would have already begun to discuss this idea. But everyone sitting here, at least all the technicians, have seen Chang Haonans ability in solving the ice problem on the Y-8 wing. Not only have wild ideas, but also the ability to turn ideas into reality. So everyone is waiting for him to give further explanation. ?Chang Haonan stood up, pulled out a blackboard placed in the corner of the conference room, and then drew a simple drawing on it. An airplane dragging a long hose. After finishing, he gently threw the chalk into the box next to him and turned around. Although it is very abstract, people here can still recognize it. It should be an H-6. We can modify a H-6 as an icing water jet specially used to artificially simulate ice cloud test environments. Because the original design is already quite mature, there is no need to retest the aerodynamic part of the aircraft, only some new equipment needs to be replaced. "For example, the original oil storage tank is changed into a water storage tank, the engine''s pressurized air is used as the air source, and the original refueling drogue is changed into a set of flat nozzle arrays to distribute the pressure air and water flow from the air and water system. The air port and water port of each nozzle are supplied to atomize water and form supercooled water droplets in the external low-temperature environment, thereby achieving the purpose of artificial ice clouds. "The only problem with this improvement is that the size of Hongyou 6 is still too small and the water storage capacity is not large enough. I calculated that it can only work for a maximum of 20 minutes per takeoff. For those icing subjects that require long-term testing Its still a bit short, but the SLD test is originally about short-term high-intensity icing, so... its completely sufficient! "The core of the entire renovation project is the nozzle array. Based on my personal experience, I will temporarily set it as a multi-layer array composed of multiple two-fluid micro-mist nozzles. The crossbar is a double-layer nested air-water pipeline. The cross-section It is circular, the middle keel rod and the frame rods on both sides are only used as support structures, and the cross-section is elliptical. As for the specific array parameter settings..." Chang Haonan lowered his head and considered the computational difficulty of this problem: Give me two to three days and I should be able to give you the design result. (End of this chapter) Chapter 217 Modification of H6 that uses up the alphabet Chapter 217 The modification of H6 that uses up the alphabet ?This idea of ??using artificial water spray to simulate icing conditions is not Chang Haonans first initiative. In fact, the first icing experiments conducted by humans were completed on the ground by using an elevated icing spray tower to create artificial ice mist. In the 1970s, the U.S. Air Force began to use icing sprayers modified from C-130 transport aircraft. However, due to the atomization capability of the nozzles at that time, it could only be tested within the speed range of 200km/h and the altitude range below 1000m. Therefore, most The time is spent testing helicopters. ?The new spray system designed by Chang Haonan can support a wider range of uses and can fully test propellers and even subsonic jet aircraft. After all, it is no problem for the H-6 to fly at 700-800km/h. ?Everyone immediately saw the potential of this thing - If there is a larger transport aircraft in the future, it can even be moved up to obtain a longer spray duration, which will greatly change the current situation in the past that natural icing tests can only depend on the weather. You must know that in the past, the reason why the United States was the dominant player in the field of aircraft icing research was because they could conduct test flights almost 8-9 months every year, while other countries did not have this condition. Should this aircraft also have a control system to form water mist of different diameters by controlling the flow rate and the air pressure change of the nozzle? ? Lin Guofan, a meteorology major, was the first to ask his own question: Yes, the control system can be accommodated in the former refueling pod. Chang Haonan nodded: As for the controller He looked at the schematic diagram drawn on the blackboard and hesitated: Perhaps we can only force him to stay in the original position of tail gunner... The early version of the Tu-16/H-6 has a cabin at the tail that can accommodate one person for operating the self-defense turret. Hongyou 6 has eliminated the tail gun, but this position was retained because it could not be used, just to accommodate the controller of the spray system. The only problem is that the comfort is relatively poor. This model is very important to us, even apart from the European delegation. Huai Guomo directly gave the final decision this time: Since it is modified from the H-6 and it is an icing test aircraft, I think it is better to temporarily name it H-6J. What does Comrade Xiao Chang think? "Well" In fact, logically speaking, naming is not important, just put a number at will and that''s it. However, for the H-6, the situation is quite special. Before Chang Haonan was reborn, the H-6J was a missile-carrying aircraft developed to self-bomb the 6K. Although this may not still be the case in today''s timeline, it still feels strange to Chang Haonan. I think this single-letter suffix should be reserved for combat aircraft of the aviation force. The English name for the icing water jet is Airborne Icing Tanker, which is also called H-6AIT. This makes it easier for Europeans to understand. Facing the different opinions put forward by Chang Haonan, Huai Guomo did not persist: That makes sense, then just do what Comrade Xiao Chang says! The code name is really not important. Then he said in a half-joking tone: However, by leaving so many letters for the aviation unit, does Comrade Xiao Chang think that our H-6 can still be modified into so many models? Chang Haonan almost couldn''t hold back his laughter when asked in one sentence - Where did J come from? In later generations, even the 6N has been released... He suddenly remembered a famous scene he saw on TV: You must no longer use Figure 16 now, right? .gif Ahem, just in case, just in case. After the meeting, Chang Haonan naturally took Lin Guofan, Liang Shaoxiu and other technical staff to the 603 Institute and began to design the H-6AIT transformation plan. ?Yi Yuanhe and other members who were originally responsible for the MA-60 project need to come up with a new anti-icing system that can ensure the safe flight of the aircraft under SLD conditions for at least 10 minutes. ?After sending everyone else away, Huai Guomo quickly reported the negotiation status and the delegations decision to the Science and Technology Committee on the internal phone. ?When Ding Gaoheng on the opposite side heard that "it was decided to temporarily modify a H-6 to conduct artificial simulated icing flight tests under SLD climate conditions", he immediately burst into hearty laughter. Im afraid Chang Haonan came up with this idea, right? "Yes, it''s him, and he just said in the meeting that it only takes up to three days to design the core set of flat nozzle arrays in the transformation plan, ensuring that the H-6ATI can fly at 700-800km/ At a speed of h, water mist with a diameter between 20 microns and 1 mm can be generated normally. Huai Guomo also smiled when he answered, obviously in a good mood: In fact, Director Ding, even the mutual recognition of airworthiness certificates for small and medium-sized aircraft with Europe was proposed by Comrade Xiao Chang on an ad hoc basis at the negotiation site. I guessed it was this guy. Although there are a lot of resources that need to be mobilized, there is not much worry in Ding Gaohengs tone: In the past, if I agreed to such a bold idea, I probably wouldnt be able to sleep well in the next few days, but Chang Haonan...its worth letting him give it a try! So about the Hongyou 6 he wants Huai Guomo, who was a soldier, knew very well that before an aircraft is delivered to the army, it is an asset of China Aviation Industry Corporation. The Science and Technology Commission can dispose of it with a note. But once it is delivered, it becomes military equipment and is required. Can only be mobilized upon receiving orders from superiors. Although the leaders of the Science and Technology Commission all have military ranks, and Ding Gaoheng is even a general, he is actually a professional and technical officer and does not have command authority, so he needs to apply to a higher level. ?However, Ding Gaohengs answer was decisive: "give him!" "I will contact the higher authorities to make arrangements regarding the aircraft. In addition, this reciprocal and mutual recognition is very important. Subsequent negotiations should consider this issue as the core. Without losing independence and autonomy, all the parties within the Science and Technology Commission system and aviation All industrial-related resources can be deployed by you! In fact, in the timeline after Chang Haonan''s rebirth, the greatest advantage of the development of China''s aviation industry, especially the civil aviation industry, was not even the various advanced technologies he developed. ??But starting from the rewriting of GJB/Z64-94, the Science and Technology Commission gradually took the lead in the development of civilian models in its own hands. Compared with the Civil Aviation Administration of China, which has a variety of interest demands and has too many foresights and hindsights in the aviation industry development decision-making process, the Science and Technology Commission, taking the lead, can at least ensure that the basic line of independent development of the aviation industry is unswervingly implemented. ?Although China''s foundation is relatively weak, it is better to concentrate its limited resources in one place than to disperse its forces and fight independently. Perhaps because he was still worried about Huai Guomo, Ding Gaoheng thought for a moment and then gave him a reassurance: "Don''t be too stressed. This is a once-in-a-lifetime opportunity for us. Be bold. If there is any responsibility, I will bear it!" Hearing these words from his old superior, Huai Guomo, who was over sixty years old and had experienced many storms in his life, felt an unprecedented excitement in his heart. It seems like I have returned to the time when I was young. Yes, I promise to complete the task! (End of this chapter) Chapter 218 Already have an idea Chapter 218 Already has an idea No one knows how many phone calls Ding Gaoheng made that night and how many people he woke up from their sleep. In short, on the afternoon of the next day, a H-6 that had just been delivered landed on the runway of Yanliang Airport, and was quickly dragged into the assembly shop to prepare for modification. There is not much time left for them. Fortunately, the aircraft already has complete pipelines and control systems, and this part only needs to be slightly improved. ? What surprised Chang Haonan was that a little later than the arrival of Hongyou 6, another Boeing 737-300 slowly appeared on the horizon. Flying from Shengjing. ?Although at first glance it looks similar to the painting of most civil aviation aircraft, there is a parallelogram-shaped national flag painted on the vertical tail. ?Similar to the Challenger 601 business jet he took when he came to Haojing a few days ago. A special plane for important personnel of the 34th Air Division. Is there a leader coming? Chang Haonan, who had just completed the on-site inspection of the H-6 in the assembly workshop, was confused for a moment. ??The standards of this negotiation are indeed very high, but even according to the principle of reciprocity, Huai Guomo''s level is definitely enough, and there is no need for a higher-status figure to show up in person. ??And the security level around the airport is completely different from that at Beiling Airport. His doubts were quickly answered as the Boeing 737 landed and began taxiing a few minutes later. The people who walked out of the plane turned out to be a group of old acquaintances. Senior sister? Forest worker? ?Chang Haonan quickly recognized the two people who walked out of the cabin first. One is naturally Yao Mengna, whom I havent seen for more than a month. The other one is Lin Shikuan, the leader of the digital design team who was led by Chang Haonan and his colleagues for several months when he was in Institute 601, and now can barely take charge of his own duties. Dr. Chang! ??After seeing Chang Haonan, who was wearing an aviation industry work jacket and standing not far from the parking space, Yao Mengna couldn''t help but smile, but she still remained a little reserved and only sped up her pace slightly. ??But Lin Shikuan didn''t pay that much attention. He walked down the gangway quickly, stretched out his hands and shook Chang Haonan''s hand: Happy New Year, Dr. Chang. Its a pleasure to work with you again. ?Among the employees in the aviation industry who have worked with Chang Haonan, only Lin Shikuan always called him Dr. Chang because of his initial habit, and he obviously respected him more. On the one hand, the two of them have been working together for significantly longer. On the other hand, Lin Shikuan and his entire digital design team have also grown from semi-abandoned children that even the cafeteria aunts disliked after Chang Haonan and Yao Mengna arrived at No. 601. Now there is a rising star in the entire institute. It can be said that Lin Shikuan''s entire life has changed because of Chang Haonan. Junior brother, long time no see. Happy New Year. Yao Mengna also walked down later, but almost subconsciously stood opposite Lin Shikuan, side by side with Chang Haonan. Happy New Year to you too, senior sister. Behind the two of them were more than two dozen engineers from the 601 Institute who had participated in the improved design of the J-8C. ?This time Chang Haonan finally understood. It should be that the Science and Technology Commission played a role. It was worried that the strength of the 603 Institute alone was not enough to complete the research and development of the H-6AIT aircraft and the improvement of the anti-icing system of the MA-60 in such a short period of time, so it directly transferred the 603 institute, which had no urgent tasks at the moment. Lin Shikuan and others came to support him. As for this Boeing 737 special plane ??If combined with the Challenger 601 that was sent here, it does have some profound meaning - Chang Haonan didn''t know exactly what he was going to do when he came here before. He was arranged to take off from the military part of the Twin Towers Airport and take a specially dispatched business jet. He just felt a little flattered. However, in both cases of transporting people, no aircraft from the civil aviation system was rented. Apparently there are confidentiality considerations. ?Although Chang Haonan has always been far away from the world, he knows very well that the development of the aviation industry is not only a technical issue, but also a route issue. ? Judging from the current situation, Ding Gaoheng and the Science and Technology Commission system are obviously better. For him, this result is obviously a reassurance. At this time, Yi Yuanhe also stepped forward and thanked the fraternal units for their support on behalf of the entire Haojing factory. Mr. Yi is so polite, why dont you thank me? After all, our China Aviation Industry is not a family... ?Lin Shikuan said as he followed Chang Haonan and Yi Yuanhe towards the office building of Factory 172. ?His words were not entirely polite. At least Chang Haonan had seen with his own eyes in his previous life that when Institute 601 held celebrations, many bigwigs from Institute 603 and 611 came. In the 1990s, the first group of people involved in the aviation system had not all retired, and the relationship between them was actually closer. ?Besides, the Science and Technology Commission has already stepped in to coordinate, so how can we not give face??????This is the advantage of using your energy in one place. After the greetings ended, the group also arrived at the office space prepared for them. ?Lin Shikuan turned to Chang Haonan again: Chang Gong, you will be the one to assign work to all of us. Is this... Chang Haonan briefly analyzed the current situation: For him, it is not difficult to design the planar nozzle array. Moreover, with the help of designers from the 603 Institute, as long as some key parts are sorted out, the rest of the numerical simulation part only needs to be run by the computer. On the contrary, the analysis of wing icing conditions and aerodynamic effects under SLD conditions requires more manpower to complete. Lets go to the design office first. Ill briefly explain the current situation to you Then, Chang Haonan spent about 10 minutes introducing the two tasks before him. Of course, they only talked about the need to design a new icing water jet and modify the MA 60 to adapt to harsher climatic conditions. The construction period is very urgent and must be completed within a week, and the issues related to the China-EU negotiations were ignored. All parts. Its not that I dont trust Lin Shikuan, Yao Mengna and others. Its just simply unnecessary. ?The fewer people who know about this before the negotiations are finally settled, the better. "So my arrangement is to leave three to four people to help design the flat nozzle array and change the original refueling control system to a water spray control system. Lin Gong, Senior Sister Yao, and the remaining comrades need to Help improve the work of MA60. ?After hearing the work arrangements, Lin Shikuan stretched out his hand to push up his glasses and asked hesitantly: There is no problem in improving the design, but... after the design is completed, we still have to manufacture it. Is one week really enough? Of course its not enough to make new ones. ?Chang Haonan replied simply and neatly: But I have done some small calculations last night and found that when the lift-increasing drag-reducing airfoil encounters large-grained supercooled water droplets, the lift coefficient decreases more significantly. "Due to limited time, I only tested it once with 100 microns and 500 microns. The result was that it was fine at 100 microns, but at 500 microns, the ice on the leading edge slats made the flow boundary layer on the upper surface thicker. Moreover, the size of the standing vortex behind the slats becomes larger, and the lift coefficient decreases by 54.6% within 180 seconds of ice formation. The ice formation on the winglets causes the flutter characteristics to change, and the effect of the previously designed active flutter system weakens. The flutter speed is directly reduced by 15%. "No matter how good the de-icing system is, it can''t save this situation. So if you want the aircraft to fly normally under extremely harsh conditions, you have to use the previous more conservative wing. As long as the 172 factory is on it Just renovate it. They are both SLDs, but they are also different. ? ? Droplet diameters of 100 microns and 1,000 microns are both called SLD, but their effects on aircraft are obviously completely different. ?The reason why Chang Haonan wanted to simulate conditions of 500 microns or even higher severity was to show off his skills in the faces of Europeans, so he did not hesitate to modify the aircraft specially for this purpose. As for the model that is truly market-oriented, it will naturally use the new wing. Unless there is a customers explicit requirement to fly in extremely bad weather. That is the scope of the special aircraft business, and such users can naturally accept the corresponding performance loss. In fact, in the past life, even before Chang Haonan was reborn, no aircraft in the world could pass the whole aircraft icing test method to verify the compliance of supercooled large droplets, mixed phases and ice crystal icing conditions. So the normal configuration combined with the Category 4 anti-icing and de-icing capabilities in Chinese standards is absolutely sufficient to cope with normal flight conditions. ?The Americans are just making cards out of thin air now. Improving the accuracy of weather forecasts is the right way to go. ??If you have to take off in a snowstorm with high humidity, the gods will not be able to save you. After explaining, Chang Haonan put down the chalk and looked back at everyone: Do you understand everything? Looking at the key data and mathematical models written by Chang Haonan on the blackboard, the members of the 603 institutes participating in the meeting collectively performed a dumbfounded performance - ??Didnt we just receive the mission yesterday? ?Its only been one night? I thought it was just the beginning? How come you have even compiled the phased research results? Be a human being! ?After a while, an engineer finally raised his hand weakly: "Chang Gong...do you mean you already have an idea?" Chang Haonan smiled and nodded: Of course, well go to the computer room to talk in detail later. Lin Shikuan, who was already used to this, immediately curled his lips, thinking that you young comrades from Institute 603 still dont see much of you, and the regular workers were shocked like this before they even showed their most inhuman side... too young! (End of this chapter) Chapter 219 Why is it me again? Chapter 219 Why is it me again? ?Perhaps because the pressure from the Americans was really great, the European delegation also changed its usual style of shoving the blame and completed the communication with the headquarters in only three days. Fortunately, Chang Haonan and others are more efficient and have basically completed the design work of two key projects. The next manufacturing part will naturally be assisted by Lin Shikuan and others. In addition, in the previous life, it was the 603 Research Institute and the 172 Factory that were the first to try the full digital design in the JH-7A project, which shows that they already have some technical reserves in this area, let alone worry. So the second round of negotiations continued immediately. When the delegations from both sides entered the venue, Colombo, who had some friendship with China, came over: Chang, you look very tired, as if you just had a date with two...or more women last night. It can only be said that he is an Italian as expected. Chang Haonan had looked in the mirror to see his own condition before setting off. Naturally, he knew that the two huge dark circles under his eyes could not be covered at any cost, but it was impossible to admit that we had improvised a set of things to do in the past three days. Testing equipment and a test machine, he had no choice but to roll his eyes at the other party and did not answer. ?However, judging from Colombo''s expression, he may have interpreted Chang Haonan''s speechlessness as acquiescence... In short, after everyone sat down, accompanied by a brief polite greeting, the intense negotiation began again. This time, Chang Haonan sat directly next to Huai Guomo. The job of talking nonsense is naturally done by other professionals, but after all, the idea of ??exchanging technology for airworthiness was proposed by him, and it can hold up the scene at some critical moments. ?Although he was really sleepy, he still managed to pull himself together and listen to the exchanges between representatives from both sides. The European side has shown interest in the preemptive strategy, especially ATR and JAA, and even agreed in principle to the joint construction of an icing wind tunnel. They only proposed that a certain number of European scientists must be guaranteed to work there without visas. , and the wind tunnel equipment must be purchased from Europe. ??They are being harassed by Bombardier and the FAA these days, but others are holding up the banner of aviation safety but dare not speak out publicly. The situation was once very passive. Although Airbus is directly under less pressure, if the airworthiness regulations on supercooled large water droplets are really passed, they will definitely not feel better. Several later sub-models of the A330 and A340 have not yet completed airworthiness certification. ?Furthermore, the price offered by the United States to delay the regulations from taking effect is to unconditionally approve the merger of Boeing and McDonnell Douglas. This is something that has a direct impact on Airbus. So at least they are not opposed to it. As for the money, Airbus has plenty of it, and they dont provide the bulk of it. ?However, when Huai Guomo proposed mutual recognition of civil aircraft products with a maximum take-off weight of 50 tons and below and a load capacity of 100 seats and below, the other party still hesitated. After a short discussion that came to no conclusion, Anne Valette said they needed a 30-minute adjournment. ?This is not beyond Chinas expectations. After all, airworthiness certification is indeed a big deal. ?Although JAA currently does not have the mandatory power on member states, that is, after JAA decides to mutually recognize each other, in theory, the domestic certification standards of each member state can still refuse to connect with CAAC. But obviously not too many countries will sing this opposite tune. ?Furthermore, they have already prepared a more comprehensive and complete institution EASA at the EU level. By that time, it will be mandatory... So as long as the other party does not refuse without reservation, it is a good thing. Comrade Xiao Chang, how much do you think we need to pay to get them to agree to mutual recognition? Huai Guomo asked Chang Haonan, who was rubbing his eyes next to him, with some worry in his tone. After all, Ding Gaoheng has given extremely high authority and said that he does not need to be afraid of taking responsibility. If the negotiation fails, he will be embarrassed to face his old superiors. The latter cheered up and stretched out his hand to reassure him: It shouldnt be too much. Ill find a way to let them see with their own eyes our strength in the field of aircraft icing and anti-icing. The difficulty of negotiation will definitely be reduced a lot. Hearing this, Huai Guomo did not respond immediately. He just stared at Chang Haonan for a while, and then said with emotion: I dont mean to distrust you, but it took you three days to come up with an improvement plan for two aircraft... Its simply incredible. Its really not easy these days. Chang Haonan, who was tired, showed a satisfied smile. With the continuous growth of management experience and life experience, he has learned how to express his happiness and pride without being shy, without appearing to be arrogant: But the foundation has been laid in the past. For example, the body structure of the H-6 does not need to be modified at all, and the MA-60 can also use the previous wings to make minor repairs... It is finally completed. Huai Guomo also noticed Chang Haonans fatigue: Thank you for your hard work, why dont you ask the staff to find an empty room for you to take a rest, and Ill have someone call you before the adjournment is over. The latter is indeed a little unable to hold on. "fair enough." Half an hour later, the negotiations resumed. The first person to speak was Airbus representative Augusta Schneider, who had never expressed his position before: As for the mutual recognition of airworthiness certification, I think you must admit that this is something that does not bring much benefit to us. ?This doesnt sound nice, but its true. After a pause, he continued: "But the conditions you offered are only to give ATR a higher-level anti-icing design and to authorize a set of so-called icing simulation software and the corresponding basic database. It is difficult for me to think that this is a reciprocal transaction. ??Schneider had another half-sentence left unsaid: Especially for us at Airbus. Airworthiness certification restricts operation rather than flight. In other words, if an aircraft does not obtain a JAA airworthiness certificate, it just cannot be registered in a member country, and it does not affect the jurisdiction of the aircraft of this type operated by other countries within the jurisdiction of the JAA. Flying and taking off and landing. Even just agreeing to mutual recognition of the airworthiness of regional airliners is equivalent to a certain degree of recognition of the level of China''s aviation industry, allowing more countries to dare to purchase aircraft produced by China with confidence. Therefore, although Airbus has no products of 50 tons/100 seats or below, Schneider does not think that the Chinese can come up with aircraft that threaten the A320 or A330 in a short time, but anyone can see that this is the beginning. It is best not to create opponents for yourself unless there are enough benefits. Although this Schneider seemed difficult to deal with, he did not refuse directly. I suppose, Mr. Schneider. Finally it was Chang Haonan''s turn to speak: You may have misunderstood the value of that software, or that database. ?Schneider waved his hand impatiently: Mr. Chang, we have also developed the same ice type prediction software, and we still have some understanding of this aspect. Although it has certain reference significance, it cannot be said to be of much value for engineering applications. "Well, we have an old saying in China that what you hear is false, but what you see is true." ?Seeing that the heat was almost there, Chang Haonan directly put forward the idea that he had planned for a long time: We are preparing to conduct an icing flight test under extremely harsh SLD conditions these days. How about you select a few representatives to see with your own eyes our technical strength in this field? ?This slightly abrupt proposal did not even allow the other party to react for a while. Flight test? JAAs Valette couldnt believe his ears. Mainly because I have never seen this happen during negotiations. Thats right, for the flight test, you can choose two or three people to go up with one of our MA60s to undergo the SLD climate test where the average diameter of supercooled large droplets is 400 microns and the maximum diameter is 500 microns. After a pause, he added: Of course, we have 100% confidence in ensuring the safety of testers, but because the situation during the test may be quite...spectacular, I recommend that participants be mentally prepared. ??The other delegation did not completely kill this matter in the half-hour discussion, but was prepared to see how much chips China was prepared to pay. Therefore, after a brief exchange, they agreed that they could go and see it first. At least look at how much the Chinese people are worth. We agree in principle to participate in your natural icing test. ??Valette said crisply: As for the specific candidates selected... For a time, all eyes in the entire negotiation scene were directed at the same person Rosie Colombo. whaaaaat? Colombo looked around in confusion: Why is it me again? (End of this chapter) Chapter 220 Does my software still have this function? Chapter 220 Does my software still have this function? In fact, it is completely reasonable for everyone to think of Colombo first. After all, he was the one who followed the MA-60 prototype No. 01 during the natural icing test flight that complied with the Category 4 requirements of the CCAR standard last time. Whether it is from the experience of following test flights or the familiarity with Chinese testers and testing processes, they are all worthy of the title. Besides, the MA-60 aircraft also belongs to your Finmeccanica Group. So Colombo cannot escape no matter what. In fact, when he was in AgustaWestland, he also participated in many natural icing experiments of helicopters. If the normal conditions were left alone, he wouldn''t necessarily be afraid. But the experience of following the entire flight during the last round of tests was so unforgettable that for a long time after that, Colombos main nightmare was seeing the ice-covered wings outside through the portholes due to violent trembling. Vibrated and broken. And this time the weather conditions turned out to be even worse. ??More importantly, he has just been transferred to the parent company and received a promotion and salary increase. He has not even had time to find a lover to have fun, and he is really unwilling to risk his life again. ?Its really hard to think about it. It is said that Chinese people all adhere to the golden mean and are not so adventurous? In a few seconds, Colombo''s expression changed from sadness to happiness. ?However, he also knew that now that the matter was over, if he wanted to continue in this industry, he would not be able to refuse. Ahem Colombo moved his shoulders unnaturally and struggled to smile. ??Instead of being chased away from the shelves, it is better to come forward: "I completed a natural icing test flight with the Huaxia team a few months ago, and I also worked with Professor Lin, Mr. Chang, and Mr. Liang, so I am one of the candidates this time. There should be no problem, right?" " ?Chang Haonan and the others actually don''t care who follows them, as long as what the person says after getting off the plane can convince the public. Colombo is still an acquaintance after all, so they naturally have no objection. Others on the European side were even more eager to see someone "volunteer" to take on this task, and they immediately voted unanimously. ?However, after Colombo said a few words of thanks to everyone, he continued: "In addition...China said that we can send two or three people to participate in the experiment. For the sake of fairness, why not divide this opportunity equally among the representatives of the three parties?" ?This is very well said. First of all, we regard the quota for this follow-up test as a rare opportunity, and propose that the three most important parties in the European delegation: JAA, Finmeccanica and Airbus each obtain one ?Since you dragged me into the water, stop standing on the dry shore and get wet together. ?Sure enough, everyone who was watching the excitement turned their attention to Schneider and Valette next to them. Unexpectedly, the former immediately used his ultimate move: "I have severe symptoms of airsickness. As you saw on the way here, why not let Professor Lorenzo represent our Airbus company? He happens to be an expert in body mechanics and fluid mechanics. You can see it even on the plane. More stuff to come." Although Fernando Lorenzo is not young, his thirst for knowledge about unknown things has not diminished at all. When he was young, he was probably the only one among the people who really regarded this trip as a good thing, so when he heard someone recommend him I was so excited afterwards that if I hadn''t taken into account my status as a member of the negotiating delegation, I would have jumped up to express my agreement. ?Schneider, who was still frightened, finally felt relieved, and at the same time subconsciously raised his hand to loosen the knot of his tie. ??The wave of disaster that just happened in Colombo almost took his breath away. Valette, the leader of the JAA team over there, is not so lucky. Her situation is similar to that of Colombo. She was promoted not long ago and has not had time to establish her own team and prestige. Moreover, among the people she brought with her, There is no scientific madman like Lorenzo who is eager to volunteer, and he will not go even if he names others. ?Everyone knows that even if the negotiations are successful, the main credit must belong to the three team leaders.? ? ? ? Just kidding, what are you doing with a few thousand francs a month? I agree with Mr. Colombos opinion, then I will have to participate in the JAA myself. ? So in this somewhat weird atmosphere, the European candidates to participate in the flight test were determined. For the Chinese delegation, the main purpose today is to get the Europeans to agree to participate in the subsequent test flight process. Or to put it more bluntly, give yourself a chance to show off your skills. ?Now that the main purpose has been achieved, Huai Guomo began to make a concluding speech, preparing to end this round of negotiations: "In this case, our second round of negotiations will be here for the time being. If nothing else happens, the icing test will be scheduled for three days. During this time, we will send special personnel to take charge of Mr. Colombo, Ms. Valette and Loren The itinerary of the three professors. ?Perhaps because the negotiations were generally going very smoothly, the old general was in a good mood. He looked at the foreigners opposite and added: "As for other members of your staff, considering the issue of confidentiality, it is best not to go out alone. If necessary, we can arrange some visits together. Haojing is the birthplace of our Chinese civilization. More than 8,000 years ago, the Chinese nation The ancestral grandmother of the Huaxu family and the female leader of the Huaxu Kingdom, her hometown is Huaxu Town in Lantian County, Haojing. It was also the ancient capital of the Thirteenth Dynasty, and you will not be disappointed. " Since this negotiation needs to be hidden from the FAA and even some forces in China, this European delegation is not large in number and is not very high-level, so it is easy to arrange. ? Many scenic spots and historic sites in later generations were not open to public ticket sales in this era. Moreover, this was just after the new year, so there would not be many domestic units organizing visits, so it was completely possible to book the venue directly. Although Chang Haonan himself absolutely believed that there would be no problems with this test flight, no matter from the perspective of aviation safety science or from the perspective of the three Europeans themselves, it was impossible to get on the plane and participate in such a type of risk. test flight subjects. Therefore, during the few days waiting for the completion of the aircraft modification, Chang Haonan and Lin Guofan''s mission was to introduce to Colombo and others the preliminary work they had carried out to prepare for the test flight without leaking the secrets, and to dissuade them. Of course, the main thing was Concerns of both Colombo and Valette. Are you really not even going to do wind tunnel testing? Colombo looked at the calculation results given by Chang Haonan on the computer screen. Although it clearly stated that level flight without **** for 5-10 minutes under SLC conditions would only result in a 22% reduction in the wing lift coefficient. For light load conditions, There is no risk of accidents for the MA60, but the computer program in front of him is a black box after all, so he still can''t completely relax. Chang Haonan called up the icing simulation program again, output a few parameters and started the calculation, then turned around and said: Actually, Mr. Colombo, with all due respect, even if we did do wind tunnel testing, it would make no sense at all. Professor Lorenzo should know that even the best NASA icing wind tunnel in the world can only create the ultimate conditions of 35 micron water droplet diameter, 50m/s airspeed and minus 30C ambient temperature. " Lorenzo next to him nodded, expressing his approval of this statement. Chang Haonan then said: But the extremely harsh conditions we are going to test this time are 400 micron water droplet diameter, 114m/s airspeed (equivalent to 410km/h) and -30C temperature. So, wind tunnel simulation is the same whether we do it or not. Why not take a look at our simulation results. After finishing speaking, he took a step aside with his hands behind his back, revealing the computer screen that had just been blocked behind him. Chang Haonan did not run the parameters just now, so this time the software only needs to spend a short time to retrieve the results from the database and then render them into graphics. ?However, the GPU of computers in this era is still too poor. It is really troublesome to build a 3D module alone, so Chang Haonan simply left an interface to display the calculation results directly through CATIA''s 3D modeling tool. So what was displayed in front of the three Europeans was actually a CATIA interface, but a simulation diagram of the icing shape of the wing was clearly drawn on it! "this" Lorenzo, who has always been a scholar, seemed to have seen a ghost. He pointed at the screen in front of him and was speechless for a long time. After a while, he pointed at himself again, and then pointed at the screen again, as if the language module was temporarily blocked. It''s generally sealed. Just when Chang Haonan was worried and curious, hesitating whether to pinch the old gentleman, Valette next to him spoke: Professor Lorenzo, the software you developed also has this function? At this time, the old professor finally recovered his ability to speak: I...I dont know either? (End of this chapter) Chapter 221 Exporting industrial software to Europe takes turns Chapter 221: Exporting industrial software to Europe, things are changing! Chang Haonan naturally didnt understand French. After being reminded by the translator who was holding back his laughter, he finally figured out the ins and outs of this matter Professor Fernando Lorenzo was fully involved in the development of CATIA software throughout the 1980s and early 1990s. Apart from Francis Bernard himself, the president of Dassault Systmes, he was the only person responsible for all versions from version 1 to version 1. 4. People who are familiar with Windows platform and UNIX platform software. ??If Bernard is the father of CATIA, then Lorenzo can also be regarded as CATIA''s uncle. ? Its just that he did not have a senior position within Dassault, so starting in 1993, he was poached by Airbus while holding a teaching position. At this time, Chang Haonan finally remembered that Lorenzo''s paper that he had read in his previous life was about aerodynamic simulation and optimization analysis in 3DCAD software. ?And it is not difficult to understand that when such a person sees that the software he has created has functions that he does not even know about, he behaves as if he has seen a ghost. ?This time, this time it was Guan Gong who used a sword in front of the door, and it even frightened Guan Gong himself. Looking at Lorenzo with an expression of "I don''t understand", Chang Haonan quickly explained: This is not a function of CATIA software. We just left an interface on the software we developed and output the shape of the result through CATIAs 3D module to save computing resources. Huhno wonder ?Hearing this statement, Lorenzo finally calmed down a little bit, but the next wave of stormy waves quickly followed - There are many icing prediction software in Europe and the United States, from the most widely used LEWICE to ONERA in France, CIRA in Italy, DRA in the UK, FANSAP-ICE in Canada, etc. But I have never heard of any software that can fully display the ice form directly through 3D models. (Actually, in 1997, the first version of LWICE3D was almost completed, but the performance and effects were terrible, and the user scope was basically limited to a very small number of institutions in North America.) Can I play with this model? ?After a long silence, Lorenzo asked tentatively. Chang Haonan nodded: Of course, the operation is the same as CATIA. At present, this interface only displays the results, and there is nothing that cannot be shown. Besides, this software will be sold commercially in the future, and we are not afraid of letting others see it. The real core part is the icing mathematical model and corresponding database established based on actual icing phenomena. In this regard, the more users (even pirated users) who use your own software, the more beneficial it will be for subsequent development. At the end of the day, although software is easy to pirate, it is not easy to copy. Not to mention these engineering application software, even if it is available on almost every computer, the seemingly most common Office office suite and its domestic competitor Yinshan WPS are still difficult to fully use in all application scenarios after decades of version iterations. instead of the former. ? Colombo put on his glasses and walked to the computer, held down the mouse and slowly dragged the 3D model displayed on the interface. ?Due to computer performance, in the eyes of Chang Haonan, a reborn person, the response of the screen is slow, with almost three lags per second, but for people of this era, they don''t care about such minor problems as delays and lags. ??Although 3D modeling and rendering as a visual representation technology have appeared since the 1970s, combining this function with the output module of engineering calculation software has indeed opened up a new track. Although I have used CATIA in the past, I never thought it could be used like this... ?Colombo held his left hand in the accurate gesture of Italians when speaking, and sighed to the two companions next to him. "Me too." ?Three Europeans gathered in front of the small screen, like primary school students seeing a computer for the first time. While looking at the icing simulation results in novelty, they uttered various exclamations in English, French or Italian. ?Chang Haonan stood behind them, smiling at Lin Guofan next to him as if his plan had succeeded. He knows very well how to deal with these old stubborns from Europe. There is no need to fix the empty ones. Just shoot them on the face with something they have never seen before, preferably to create the effect of Grandma Liu entering the Grand View Garden. As long as these old Europe lose their dignity in front of you, the momentum behind them will be much weaker. And this software certainly does not disappoint. "so" A few minutes later, the three people who had had enough fun turned around almost at the same time: "This is the software you said you would license to us before?" "Yes, that''s it, paired with the basic version of the database." Looking at the three faces in front of him, Chang Haonan knew that he was basically stable: "If we sign an agreement, JAA, Airbus, Finmeccanica and ATR will be able to use the software for free before the agreement expires, but other users will still have to pay. Of course, we may also choose to contract with a company Cooperate with local distributors to maintain commercial operations of the software in Europe. Basic version...means there is also a premium version? Lorenzo simply skipped the latter part and accurately captured the key. The results you see now are simulated through the basic version of the database. As for the advanced version... it contains more typical climate characteristics and some cutting-edge airfoil data, and it will be more efficient to use. ?Chang Haonan continued to seduce the other party step by step according to the plan. So how do we get the premium version? The old professor continued to follow Chang Haonan''s guidance and asked. Hmmthis Even though this so-called advanced version does not actually exist yet, Chang Haonan still pretended to be embarrassed: To be honest, Professor Lorenzo, the export of advanced software may be restricted by some of our countrys policies. ?This sentence is even more nonsense. At present, Chinas legal rights regarding software have not been fully defined, let alone any export regulations. ?This was 1997, who dared to think that China could sell software abroad... But the three people in front of me obviously dont understand this: What are the restrictions set by the policy? Anne Valette was stunned for a moment: "Mr. Chang, if the negotiation is successfully completed and the agreement is signed, we will be considered a partnership. Shouldn''t we be more open to our partners?" Chang Haonan chuckled after hearing this ?After going around in a big circle, he finally found the opportunity to say what he wanted to say: "Since you said we are a partnership, I will be blunt." For a long time, many high-end industrial equipment purchased by our country from Europe, such as cold heading machines, stamping machines, and CNC machine tools, can only process products with second-level or even third-level precision. They are obviously the same hardware, and our companies also It cost the same amount of money, but the functions of the industrial control software are limited. "We Chinese people are naturally willing to treat our partners with an open mind, but in the face of such chilling differential treatment, we can only adopt some reciprocal measures..." And there is no difference in core functions between our basic version and advanced version, but the richness of the database is different. Compared with the practices of some of your companies, it is already very benevolent. After finishing his words, Chang Haonan glanced at several people. Even though he was the youngest, he still made the three opponents look embarrassed at the same time even though he held the moral high ground. "this" Of course they know that what Chang Haonan said is true. ?However, this is obviously beyond the scope of the negotiating delegation. "Of course, I also know that this kind of thing is not something that your delegation can change. It can only be said that each has its own difficulties, but we should seek common ground while reserving differences and not let these difficulties affect our cooperation, right?" Chang Haonan did not expect to change the status quo through such an incident. ??This is just the first step to fight against unequal contracts, and someone has to take it. At present, it is just an icing simulation software, and it is naturally impossible to shake so many European industrial companies. However, the day will come when the offense and defense can change. Yes, I hope this cooperation with you can be successfully completed. With the steps provided by Chang Haonan, Colombo also ended the somewhat anxious topic just now. Obviously, the balance in the hearts of the three people has obviously begun to tilt. (End of this chapter) Chapter 222 H-6AIT Chapter 222: 6AIT Lets not talk about the software for now, I have another question. ?As a scholar, Lorenzo is still relatively thin-skinned, and he still has a slightly embarrassed look on his face at this time: I just noticed that in your numerical calculation results, the icing position on the wing surface seems to be farther back than normal, and also much higher. Is that so? "Is such that." Chang Haonan nodded: "Through our previous laboratory research, we found that it only takes about 0.001 to 0.1 seconds from the collision of the SLD with the airfoil to the completion of the icing process. This shows that the impact and icing of supercooled large water droplets has experienced a much longer process. The fast and complex thermodynamic process is completely different from the mechanism in general research in which droplets of tens of microns first form a water layer and then undergo a phase change through two-phase heat transfer. " He also followed Lorenzos question back to the technical discussion. I have just finished what I want to say. Although it is impossible to achieve any immediate results, it can at least make the EU begin to feel the pressure. It begins to feel that some Chinese companies are very dissatisfied with this discriminatory policy and have responded. means. The underlying logic of everything in the world is common. For example, if you seek peace through struggle, you will survive peacefully; if you seek peace through concessions, you will perish peacefully. ? Struggle can be for peace, blockade can also be for communication - Only when you can achieve peer-to-peer technical blockade, others will be willing to put down their posture and engage in equal exchanges with you. This is why the simple "market for technology" route is unlikely to work. So this is what you calculated using a new heat transfer and power model? Yes, our software can handle everything down to 1,000 microns. Chang Haonan said, reaching out and patting the hummingly running server host next to him: We will print out the 3D simulation diagram on the computer and send it to the three of us later. When we get on the plane, you can observe for yourself whether the actual icing conditions are consistent with our calculation results. Lorenzo frowned, realizing that things were not simple. During the first round of negotiations, Chang Haonan mentioned the need to create a new set of research methods and even a theoretical system. At that time, he thought it was the other partys research vision and something he wanted to work with them to complete. ?The result now seems to be that this is someone elses research summary, and there is no need for foreign aid at all... ??Moreover, the young man in front of me dared to say that he asked them to take the results and compare them on the spot. He was obviously very confident in the accuracy. Lorenzo even has reason to believe that the Chinese side may have already conducted many similar flight tests, and this time it was just a reenactment for them to show off their skills. I have to say that although the old professor thought about a lot of intermediate content that did not exist, the final result was indeed correct. Its about showing off your skills and your face! ?However, this time he was very self-aware and did not continue to ask about the details. He just secretly calculated in his heart how big the gap between the two sides was in this field... Instead, Colombo then asked his doubts: "By the way, Mr. Chang, you said before that the conditions we want to test this time are 400 micron water droplet diameter and -30C temperature. But the last time we did a natural icing test flight, I remember it took more than two weeks to wait until it was right. " As a mid-level company employee from AgustaWestland, although Colombo has been in management positions for some years, he was originally from a technical background. He is very aware that the test conditions mentioned by Chang Haonan are very difficult to occur even in the Great Lakes. It is even rarer to find in other places in several years. It was indeed the EMB120''s unlucky fate that it happened to hit a cloud mixed with supercooled liquid droplets and ice crystals. Of course thats impossible. Chang Haonan was worrying about how to move the topic to the next part more naturally, but when Colombo asked this question, he almost fell asleep and handed him a pillow: "In fact, although SLD has a wide range, only supercooled droplets below 200 microns are common. However, we have some new technical means this time, and we no longer need to wait for God to do as we did in the past." "New technical means refer to..." ?Colombo''s tone was a little hesitant. He was not sure whether the other party would reveal so much information. But this is what Chang Haonan was waiting for: Its useless to say more. Anyway, you have already obtained the results of the icing simulation. Next, I will take you directly to see our new technical means. Hearing these words, the other three people all showed somewhat surprised expressions. ?No one expected that Chang Haonan, who had always been wary of them, would be so easy to talk to this time. Three of you are coming with me. When leaving the computer room, the staff did not forget to give the printed simulation results to several people. ?A group of five people, plus three special service personnel and translators who were accompanying them, got into two military green 212 jeeps. Ms. Valette in the back seat showed a look of pain. On the way here, she was in great pain because of the air leakage from all sides and the lack of comfort in the car. Chang, you can obviously produce an aircraft like the MA-60, why dont you put the same effort into building a car that is at least more normal? ?Wallette held the passenger seat in front of him tightly with both hands to resist the bumps, and at the same time complained to Chang Haonan who was sitting in the passenger seat. ? This question confused the latter. In his impression, the European delegations itinerary after arriving in Haojing did not include a test ride on the MA60. Ms. Valette has been on our new boat 60 before? ??Valette nodded and replied in a slightly louder voice than usual: At the Xiangzhou Air Show last year, I experienced it inside the cabin. Although it didnt take off, it was definitely much more comfortable than the current car. Is this... ?Chang Haonan really didnt know how to answer for a while. You cant tell your foreign friends that because our different industrial sectors are still relatively fragmented, it will take a long time for the technological achievements of the aviation system to be applied to the automobile industry... In fact, China originally wanted to arrange a few better imported cars for the other party, but the Science and Technology Commission considered that Haojing was not a particularly developed city at this time, and a group of luxury cars suddenly appeared on the street. It would attract unnecessary attention, so I simply gave up and transferred a few 212 cars in good condition from the 603 factory and the 172 factory to get rid of the problem. Thats because AgustaWestland is responsible for all cabin comfort and ergonomics systems of MA60 Fortunately, Colombo on the other side suddenly interrupted, and Valette did not continue to dwell on this issue. ?However, this topic also reminded Chang Haonan of what he had talked about with Minister Jin on the train home. ?Originally, he was preparing to promote the Seiko Plan when he returned to the capital after the Spring Festival holiday, but he was temporarily called to Haojing in the middle of the trip. The next few days were so busy that he almost forgot about it. About half an hour later, the two cars finally drove into Factory 172 and stopped at the entrance of a final assembly plant. Well, then, please allow me to show you the most important equipment in this icing test. Chang Haonan opened the car door and got out of the car first. He pointed his finger into the factory: H-6AIT. (End of this chapter) Chapter 223 The dignified Airbus actually wants to buy Huaxia Aircraft? Chapter 223 The dignified Airbus actually wants to buy Huaxia Aircraft? From where everyone got off the car, they could already see a seemingly unremarkable mid-wing jet aircraft parked in the huge workshop. Everyone here is a professional. Even three Europeans know the H-6 prototype 16. AITIcing Simulator? This time, it was Colombo who reacted first, and then showed a disappointed expression: This is your secret weapon? As a former AgustaWestland employee, Colombo has experience that many people working on fixed-wing aircraft do not have. This includes using various artificial icing simulation methods to verify the helicopter rotor anti-icing system, so icing simulated aircraft is not new to him. ?Wallet, who was separated by a mountain, showed a little curiosity. In her opinion, this aircraft with pods under the wings is more like an aerial tanker. ??Only Lorenzo, who was well-informed, did not show any emotion. He just put his hands behind his back and stared at the position at the tail of the refueling pod where the refueling drogue should have been. ??A bulkhead-style device is being installed there at this time. ?Chang Haonan was not dissatisfied with Lorenzo''s tone and expression. ??He knows the principle of suppressing first and then rising. The more the other party thinks this plane is ordinary now, the easier it will be to be shocked later. Mr. Lorenzo, this is not an ordinary AIT aircraft. Please follow me, three of you. ?The group of people walked slowly into the final assembly workshop. The modification of the H-6 was almost completed, and only some necessary modifications were left to the positions of the original tail gun shooter cabin and the communications module. Rossi, you should have seen that C130-modified icing simulator in the United States, right? Lorenzo, who was following Chang Haonan, asked Colombo next to him in a low voice in unskilled Italian. The latter replied almost without thinking: Of course, the A109s rotor de-icing system was tested with the assistance of that aircraft. So what was the airspeed you were testing at? ? Lorenzo has only heard about C130AIT, so he doesnt know many details. Airspeed? Colombo was suddenly asked: Let me think about it, we dont pay much attention to this data when testing helicopters... Because the helicopter does not rely on its own speed to provide lift, more attention will be paid to the rotor speed during icing test flights. After a few seconds, he replied in an uncertain tone: About 110 knots, which is about 205km/h After hearing this answer, Lorenzo nodded thoughtfully. This is the injection device we specially developed for simulated icing tests under SLD conditions. H-6 is actually not a very big aircraft. Coupled with the design of the mid-wing, Chang Haonan can reach out and touch the position of the refueling pod: "The side length after full expansion is 1.5 meters. It is composed of a total of 68 two-fluid micro-mist nozzles, which can spray an average particle size between 25 microns and 1 mm at a maximum speed of 750km/h and an altitude of 5,000 meters. Uniform water mist with a deviation of no more than 20%. It was similar to what Chang Haonan had expected. As professionals, the three Europeans quickly understood it after hearing the introduction. ?Especially Colombo, who was a little disappointed and disdainful just now, the corners of his mouth twitched obviously a few times. For a time, the only sound left in the entire workshop was the sound of the motor when the power tool was started. "Etc., etc" ?Colombo finally realized at this time why Lorenzo had asked himself those slightly abrupt questions just now. ?If he had read Mr. Lu Xuns works, he would definitely have the following emotion: Im so stupid, really, I only knew that there are icing simulation aircraft in the United States, but I didnt know that the one in front of me is even more awesome... ?This H-6AIT can be said to be completely different from the C130AIT he had seen in North America before. The latter can only be used at low altitudes within a very narrow speed range around 200km/h (the stall speed of the C130 is about 185km), so it can basically only be adapted to the normal flight conditions of helicopters. ??And the Chinese peoples test object this time was a serious fixed-wing aircraft. The test conditions they previously set were an airspeed of 114m/s, exceeding 400km/h. According to Chang Haonan, this aircraft can even work normally at a speed of 750km/h. ??If this data is not particularly exaggerated, let alone propeller aircraft such as the MA-60, even the icing test flight of a jet aircraft can be completed with this aircraft. After all, based on past experience, wing icing mostly occurs at medium and low altitudes and at medium and low speeds. There is basically no need to consider ice damage in flight conditions exceeding 750km/h. This is great. Mr. Chang, at a temperature of -30C, wont the water in the pipes freeze? As the representative of JAA, Valette next to him didnt know much about these specific technical details, so he just asked based on instinct. But this problem hit Chang Haonans heart. Ms. Valette asked very well, this involves our exclusive technology. ?As he spoke, he patted the shell of the refueling pod and made a crisp sound: "I just said that this injection device contains 68 two-fluid micro-mist nozzles, which are nozzles that can inject gas and liquid at the same time. Under working conditions, water will flow through the inside of the double-layer concentric hose, and the outside will be drawn from the engine. Extracted high-temperature exhaust gas package. On the one hand, this can prevent water from freezing in the air and clogging the pipes. On the other hand, it can also use the principle of ejection to control the diameter of the ejected droplets by adjusting the air supply. ? Lorenzo and Colombo, who were more knowledgeable, looked at each other. This is another piece of equipment whose principle is simple to say, but requires a huge amount of test data to be optimized before it can be put into engineering applications. Just like the previous icing simulation software. It is very difficult to copy it quickly once you get the physical object. It sounds like it can indeed meet the experimental requirements, but I dont know if this nozzle can create a large enough volume of supercooled water and air mass. After all, we have to cover the entire aircraft? ??Lorenzo used a more tactful way to get out what he wanted to know. Chang Haonan can naturally hear the other party''s purpose, but this is what he planned to tell them: "It''s enough. According to calculations, this spray device can form a water mist area with a cross-sectional size of 50 meters x 50 meters at the rear. If three sets of equipment can be installed on the left and right wings and the tail of an aircraft at the same time, then the cross-section can be Expanded to 120 meters x 40 meters, even an Airbus... er, Boeing 747 is enough. " ? He ??almost blurted out Airbus A380, and then remembered that he had not decided on the name yet. ?Chang Haonans seemingly casual introduction is actually very targeted. If we say that Chinas commitment to designing an anti-icing system for ATR42/72 is giving it a fish, then jointly conducting research on icing and anti-icing with Europe is giving it a fish. ?Then this plane directly contracted a fish pond. ?This allows Airbus and JAA to bid farewell to the Great Lakes in North America and conduct ice test flights of aircraft in Europe. ?This matter will not be very attractive to the EU that will not be able to support the wall 20 years later, but it was different in the 1990s. The EU these days is a bit like a person who has just come of age. It is eager to prove that it can completely separate from the United States in various fields and at all levels, so it urgently needs this kind of contracting fish ponds. They will definitely be interested. After all, the world has been suffering for a long time. Thats right, Chang Haonan is planning to sell his system! Mainly because he knew that in about five or six years, Boeing would use a KC135 to modify a similar product. Then the French, who also owned the KC135F, quickly caught up with the progress. ?Mainly AIT aircraft can be used for decades after being built. The water spray system is sufficient anyway, and there will be no technological iterations. There is no need to hold on to Boeing in the end. Sure enough, after hearing Chang Haonan''s answer, the muscles on their faces twitched slightly, apparently trying to suppress their overly excited expressions. ?Probably the same time Jim Harker died halfway through the memoirs of the former prime minister. In short, after finishing todays visit, Lorenzo found Schneider who had a great time that evening. Their aircraft will allow us to completely solve the FAAs monopoly problem on natural icing test flights! Perhaps because he was afraid that he was not convincing enough, he added another sentence: The water mist area of ??120 meters 40 meters can even be used to complete the test of our planned A3XX aircraft! A3XX, the predecessor of the future A380. You mean we can have long-term cooperation with China in natural icing test flights? ??Schneider, who was a little tired from a day of visiting, turned out to be interested: But what is the difference between this and cooperation with the FAA? The initiative is not in our hands anyway? Lorenzo shook his head: No, I mean, we can buy a plane like that and take it home, and we can do the test flight ourselves! (End of this chapter) Chapter 224 Test starts Chapter 224 The test begins It is absolutely impossible for Airbus to buy aircraft from China. ?Schneider rejected it directly without hesitation: Let alone China, even Boeing cant do it. As a manager, he needs to consider many more issues than Lorenzo, who is purely technical: "Not to mention that from a legal perspective, it is impossible for a civilian Tupolev bomber to pass operational approval. Even if we take a step back and the JAA gives special permission on this matter, we cannot afford to lose that person. Its like the president of Mercedes-Benz will never travel in a BMW. At least not until retirement. But its really important to us ?Lorenzo scratched his head. He also realized that the other party was right. And even if you dont consider the face issue, the modification potential of a medium bomber is indeed not large enough. If three nozzles are really installed at the same time, the water tank in the aircraft may be exhausted in less than a few minutes, even if the test time required by SLC conditions is far away. If it is shorter than normal, there is a high probability that a complete test flight will not be completed. ?In addition, we must also consider that it was not many years before the end of the Cold War. If European people saw a plane that looked almost exactly like Figure 16 passing over their heads, it would most likely cause panic. Anyway, lets not rush this matter. After all, before the test results come out, its possible that the Chinese are just bragging. ??Schneider stretched his aching body and yawned again: I think its not too late to discuss this matter until were sure how credible they are, what do you think? Okay, youre right. Lorenzo, who himself also realized that his opinion on buying a plane was somewhat unreliable, could only nod his head: But Im already looking forward to the day of the test flight. Two days later, on the tarmac of Yanliang Airport. ?After three days of continuous modifications day and night, the second prototype of the MA-60 and the H-6AIT icing water jet were parked not far away from each other. The surrounding auxiliary vehicles have completed their work and are currently being evacuated in an orderly manner. For engineers from the 603 Institute and the 182 Factory, this is not the first time they have experienced natural icing test flights. They went to Nanzheng to conduct a full-process test two months ago. Only this time, the test faced by the aircraft and the pilots was significantly greater. ?Lin Guofan originally wanted to get on the H-6AIT to operate the water sprinkler in person, but Zhu Lan strongly opposed it. The two argued about this many times, and it ended with Professor Lin finding it difficult to fit into the narrow tail turret due to his stout figure. Eventually one of his students volunteered to take on the task. Speaking of which, why cant the refuelers position in front of the tail turret be set up as a water spray operator? The space there is obviously larger and the visibility on both sides is better. ?Looking at the two planes undergoing final preparations, Lin Guofan put his hands in his pockets and looked still regretful that he could not fly to the sky in person. "Well... that position was originally a radio operator. Because the icing test process requires close cooperation between the two aircraft and the tower, we reset this position on the AIT model, so the only thing left for the controller is the past The tail gunner''s position." ?Chang Haonan shrugged and explained. At this time, three Europeans who had changed into aviation industry cotton coats also walked over from a distance. Similar to Colombo when he came to China for the first time, Valette was initially unwilling to put on these bloated clothes. ?However, after experiencing the February morning in northern China, I decisively gave up my tough words and took off my slim-fitting windbreaker. Lin, Chang, you two...wont you go up with us? ?Colombo looked at Chang Haonan and Lin Guofan, who were chatting on the side with their hands folded and had no intention of boarding the plane. Their already pale faces turned even paler. Theres no other way, we want to go up too. Chang Haonan raised his sleeves and gestured to the MA60 parked on the other side: "But I have said before that according to the simulation results, the operating conditions of this test will reduce the lift of the aircraft by about 22%. Considering that some safety margin must be left, the aircraft can no longer accommodate the two of us. A man." What he said was clear and upright. Colombo opened his mouth several times in a row, but he didn''t think of how to answer. ?At this time, the H-6AIT, which had completed preparations, had slowly started up with a huge roar, leaving the parking space and taxiing towards the take-off runway. Believe me, everything is calculated and there will be no problem. Looking at Colombo with a colorful expression, Chang Haonan patted his shoulder and comforted him: Well, in order to express my blessing to you, I will personally send you to the plane. You gave this plane new wings? As the distance got closer, Colombo, who was very familiar with MA 60, quickly discovered the difference. ?The large-aspect-ratio wing with winglets that provided a huge performance advantage is gone, replaced by an ordinary wing that looks unremarkable. Of course, you dont think that an aircraft can fly in harsh climates that far exceed the lower limit of SLC conditions without paying any price, right? Chang Haonan replied in a matter-of-fact tone: "Actually, this type of wing is customized for some customers who have special anti-icing needs. Under normal circumstances, such exaggerated performance is not needed at all. This time it is a coincidence that you can catch up with the opportunity. Its rare. ?Chang Haonan deceives people without changing his face or heart. Is that so? Colombo took a look at Chang Haonans calm expression, and finally chose to believe what he said: ?The five people separated next to the aircraft ramp. Then Chang Haonan and Lin Guofan returned to the command center at the tower, while the other three boarded the aircraft and found a seat to sit down. Lorenzo, who couldn''t wait to observe the test, sat directly next to a Chinese engineer who was operating a computer. Since the aircraft''s portholes would also be covered with frost during the icing test, he could only observe the results from the aircraft through a camera placed outside. Observe the condition of the wings in the heading direction. As a cabin designer, Colombo, who is familiar with the cabin environment, sat in the front position, where the noise and vibration felt were relatively small. Wallette chose to sit with him. As the two all-composite, low-noise four-blade propellers began to rotate, the No. 02 prototype gradually began to accelerate. The sound in the cabin is much quieter than the ATR72 I rode in before ?Perhaps out of nervousness, Valette took the initiative to open up the topic for the first time today. Of course, the cabin environment is something we at AgustaWestland are responsible for, and China has also redesigned the shape of the propeller blades to further reduce the intensity of the noise source ??Just as Colombo was explaining to the French beauty beside him, everyone on the plane felt overweight for a moment - The plane has taken off! (End of this chapter) Chapter 225 Huaxia’s research level leads the way! Chapter 225: Chinas research level leads the way! Since the test environment is artificially created with an aircraft this time, there is no need to go through the long and luck-based "ice-finding" process before. Instead, you can fly directly to the preset test airspace. ?So it didn''t take long before Colombo could already see the H-6AIT in low-speed level flight on the left front through the port window. I must admit that as an Italian, this is a very novel experience. He knew that when the experiment started, he would no longer be able to see anything through the porthole. After a moment of hesitation, he decided that at least he could not fish the whole time, so he and Valette moved behind Lorenzo''s seat. From their position, the laptop screen can also be seen. The picture is divided equally into six parts. After a brief identification, Colombo recognized that the top two images showed the ice thickness scales on the leading edge deicing sleeves of the left and right center and outer wings, the middle two images showed the full view of the main wings on both sides, and the bottom two images The block image shows the condition of the horizontal tail leading edge de-icing sleeve and the horizontal tail leading edge wingtip. Apparently, a total of 6 cameras are installed outside the aircraft, aiming at the 6 most important positions. Are they so confident in their predictions? Colombo thought to himself as he looked at the high-definition surveillance footage for this era. Since he finally chose to board the plane, it shows that he still has confidence in the anti-icing system designed by Chang Haonan. But the level of the anti-icing system is one thing, and it is another thing to accurately calculate the location and even the shape of the ice. ?If we have to make an analogy, the former is equivalent to using a machete to remove bones. Although it is not easy, it is still within the acceptable range of ordinary people. The latter is equivalent to using the Qinglong Yanyue Sword to carve radish flowers, which is a completely otherworldly skill. Therefore, Colombo''s original expectation was that the Chinese would play some visual tricks. Anyway, during the icing test, there was no way to see outside directly through the side windows. As long as the camera was blurred a little and the angle was a little different, it would be enough. The visual effects are disruptive. ??Anyway, as long as the plane completes the entire process, it''s hard for them to say anything. As a former project dog, Colombo himself has never painted a pie, so he can understand this kind of behavior of adding a little water. ?Furthermore, cooperation with China is the foundation of his career in Finmeccanica Group. Last night, he had even thought about how to avoid the important points in the report and finally concluded that he should agree to sign the cooperation agreement. However, look at the current situation... It seems that they are not planning to do any fancy things, but want to do it for real? Colombo''s mind is a little confused. On the one hand, the report he thought up in advance after being up half the night last night may be invalid. On the other hand, he is also a little worried that these Chinese people may be overconfident. In case of this kind of sharp picture, if it is played, the only way to rely on him alone can not save it anyway. ?Colombo, who was thinking wildly, raised his head and tried to distract himself by looking left and right. This action caused him to collide with Valette''s eyes next to him. The latter has never tried natural freezing before, and his expression showed a little nervousness. ?Several Chinese engineers are conducting final inspections before the icing test. They have rehearsed countless times in the past few days, and they move quickly and cooperate with each other tacitly. For a time, apart from the buzzing sound of the propellers outside, there were only brief Chinese passwords left in the cabin. The cloud droplet spectrum probe, two-dimensional cloud particle probe, and two-dimensional precipitation particle probe are working normally! The atmospheric temperature probe, speed sensor, and external image monitoring system are in normal condition! AIT aircraft reports that it is ready for fogging operations! Colombo could not understand Chinese, and due to the problem of the aircraft''s capacity, there was no translator to follow him on this trip, but the calm voices of these people alleviated his worries a lot. Suddenly, the cabin radio sounded simultaneously with the ongoing radio conversation in the cockpit. The difference from before is that this time it is in English. ? ? Several engineers who were walking around just now also returned to their seats as quickly as possible and fastened their seat belts. Get ready to enter the artificial supercooled water mist environment! Countdown 321 Before Colombo could mentally prepare himself, the entire plane rushed straight into the white clouds and mist! According to rough estimates, for every 100 meters of altitude increase, the temperature will drop by 0.6C. At an altitude of 4,500 meters in February, the temperature is -30C! ?At such low temperatures, the water droplets broken up by the high-pressure gas at the nozzle enter a supercooled state almost as soon as they enter the atmosphere. ? Supercooled water is still liquid, but in a metastable state. When subjected to certain external disturbances, it will freeze rapidly. Just like a wing impact at moderate speeds. The average diameter of water droplets is 404.5 microns, the temperature is -31.7C, and the airspeed is 110 meters per second, which meets the SLD test conditions! The Chinese engineer in front specially reported the situation in English. The data can also be clearly seen on the screen of another computer in front of him. It is indeed a true SLD condition! I dont know if it was due to psychological effects, but Colombo even heard the rattling sound of ice forming on the surface of the planes skin. The cabin glass was covered with a thin layer of ice at an almost unprecedented speed, blocking everyone''s view. He had no choice but to turn his attention back to the laptop screen in the row in front. Suddenly, the Italian felt his right hand being grabbed.? ? ? ? is Valette sitting next to him. At this time, she closed her eyes tightly and pursed her red lips slightly. She was obviously nervous because of the overly stimulating effect of the show. Heh...woman. Colombo shook his head, but did not throw away the other party. ?At this moment, a French sentence from the front broke the warm atmosphere of this weirdness. Is ice starting to accumulate so soon? Colombo was awakened and quickly concentrated his attention, only to realize that within ten seconds of his distraction, about 10 millimeters of ice had already appeared on the leading edge of the main wing! No wonder the two planes had accidents before they barely had time to react... Lorenzo, who was sitting in front, muttered to himself as he looked at the thickness of the ice layer that was growing almost at a speed visible to the naked eye. ??Although the results of the American Eagle investigation have come out, the impact of the cold words on the paper is not at the same level as the shocking images before our eyes. ?Colombo hurriedly used his free left hand to take out the schematic diagram of simulated icing conditions given to them by Chang Haonan the other day from the inner pocket of his coat. ??Although the black and white printed image is not particularly clear, the edges of the ice shape can still be identified through the difference in grayscale. Lorenzo also held up his share of results to the computer. As time passed, clear ice gradually began to appear not only on the leading edge of the wing, but also on the upper and lower surfaces of the wing A type of ice that is irregular in shape and poses a greater hazard to flight safety. The icing location is indeed further aft and is more evenly distributed on the upper and lower airfoils. But judging from the outline, it is quite different from the simulation results on paper. ?Lorenzo and Colombo breathed a sigh of relief at the same time. It does not mean to take pleasure in others'' misfortune. But only part of the predicted results are correct, which is more in line with the reality. Of course, even this is quite impressive, and the simulation results can directly guide the specific design of the deicing system. No wonder the Chinese people are so courageous ?Colombo thought this while preparing to fold the paper again. "etc" Lorenzo''s eyes suddenly widened. On the surface of the original clear ice, loose, white and opaque frost ice appeared again. Such a change made Colombo, who was already relieved, have to hold himself back. Because these newly emerged frosts seem to be growing in a shape similar to the simulation results. "No way" He raised the piece of paper again and shook Valette''s arm next to him: Annie, Anne? Look ahead! The latter was already pale at this time, but he slowly opened his eyes after hearing someone calling his name. Then he saw Colombo and Lorenzo who were stunned. Are they really exactly the same? C`estincroyableRocambolesque! At this time, the pilots voice also sounded in the cabin: Icing time is 500 seconds, the lift of the aircraft has dropped by more than 20%, turn on the de-icing system! ??When a group of people got off the plane, Chang Haonan noticed that Colombo and Valette''s hands were holding together. ?But its normal to think about it. When people are afraid, their heartbeat will speed up and more adrenaline will be secreted. If there is someone of the opposite **** next to you at this time, it is easy for your own consciousness to mistake it for a heartbeat feeling. ?This is why young couples like to watch horror movies together. ??And the ice experiment just now was much more exciting than a horror movie. Besides, an Italian and a Frenchman, haha. Reasonable, very reasonable. Lorenzo, who was following them, had a completely different style of painting. He was holding a notebook and pen in his hand, recording something quickly. While writing this down, he excitedly said to himself: Its too strong...This is really too strong! (End of this chapter) Chapter 226 They have to thank us! Chapter 226 They still have to thank us! Chang Haonan, who had been waiting on the tarmac for a long time, was a little confused when he saw Colombo and Valette who were the first to get off the plane. In the week since arriving in Haojing, he has made plans one after another, just to defeat these European guys with an impressive show of skills at this time today. And the couple who got on the plane to follow the experiment actually took this opportunity to get together? Damn itthey wont be busy talking about love the whole time, right? Chang Haonan rubbed the palms of his hands in his sleeves and thought. Even showed a somewhat panicked expression for the first time after his rebirth. He can accept failure of the plan, but never accept failure in this way. You are a master of stupid tricks, right? Fortunately, Lorenzo, who appeared at the end of the team, finally let him breathe a sigh of relief. TNND, it seems that Europeans also have reliable ones... Chang Haonan, who secretly cursed, still maintained a smile on his face and walked enthusiastically towards the test participants who got off the plane. The Chinese engineers who got off the plane had already begun to celebrate each other by high-fiving or hugging each other. To Chang Haonan''s surprise, the first person to take the initiative to talk to him was Colombo, who was still holding the hand of the woman next to him, or strictly speaking, being held by the woman next to him. When the two of them passed each other, he slapped Chang Haonan''s shoulder hard with his free right hand: "Chang, I have to admit that before today, I always thought your statement was watery." Colombo said as he took out the piece of paper with the icing simulation results printed on it again from his pocket: I dont understand, how on earth did you accurately calculate the existence of the layer of frost on the surface of the ice, and... not only the location, but also the shape is exactly the same? Looking at the expressions of the Italians in front of him saying "I don''t understand" and "This is not scientific", and clearly not wanting to believe it but having to believe it because of what he saw with his own eyes, Chang Haonan even thought of what Quentin said on the Conan show. The "awesome" scene. And Im afraid that Colombo will also suffer from the same problem. Fortunately, the other party does not speak Chinese. Its physics, I used physics, my friend. Chang Haonan deliberately replied in an exaggerated tone: As long as you master the correct physical laws and write appropriate algorithms, you can do the same. Also, Im glad you remembered your job when you were on the plane. Speaking, he glanced at the hands held by the two of them. Colombo had just been immersed in the echo of "unbelievable" that came to his mind when he saw the final ice form. His whole body was as dizzy as if he had seen someone perform a fireball technique. Only then did he notice his hand. It was unexpectedly still being held by Valette. Ahem He coughed twice in embarrassment, then took out his hand and put it behind his back, as if nothing happened: It sounds very simple from what you said. If I hadnt known how complicated ice research is, I might have believed it. Chang Haonans explanation just now is basically a correct nonsense, similar to telling you the basic rules of Go and then letting you play against AlphaGo directly. But he said this on purpose, because he was clearly tempting the other party to engage in technical cooperation. Because this kind of thing is simple in principle but difficult to implement, it is the most difficult to overtake through some tricky corners. A conspiracy! And this is something that Europe cannot refuse. ?At this time, Valette next to him had also sorted out his emotions. Since she was actually paddling the whole way and was not very technical, she was the least directly shocked among the three. Although through the performance of Lorenzo and Colombo, she could also realize that these Chinese people must have developed a very amazing technology, but as a negotiator, Valette still maintained a basic calm: "Mr. Chang, your performance today is indeed perfect. As an individual, I am very grateful to have this opportunity to experience the entire process of an aircraft being covered by ice in the cabin. I believe that such an experience will be beneficial to our management." Regarding the future work of JAA, as for the requirements you raised in the last round of negotiations, we will give a final answer after further discussion. An official statement finally restored a sense of "negotiation" between the two parties. After all, I almost forgot where I was sitting in Colombo just now. ?However, this feeling only lasted less than five seconds before it was broken again by Lorenzo who came forward later. Chang, this is simply magic. The old professor held up the piece of paper in his hand and said: At the current level of research, even if the numerical calculation method is used backwards when the ice shape is known, there is no way to restore it to such a similarity! The second sentence that follows is even more important: "I have a merciless request. I hope you can make a copy of the images taken by the six cameras on the plane just now. I want Schneider to see what real icing research is. Believe me, there is nothing. Its more convincing than those videos! ??Valette is just a black eye ??Good guy, just now Colombo just tilted its **** towards the Chinese side, old sir, you are already at the level of directly embroidering the red flag... Correspondingly, Chang Haonan, who had watched the whole drama, was so excited that he wished he could apply for a medal for Lorenzo. ?It took him all his life not to laugh out loud, and he almost gave himself internal injuries: In principle, this kind of video should not be released to the outside world. Chang Haonan replied with difficulty: But considering our partnership, I can apply to my superiors for an exception, and someone will send the videotape to you in a while. In normal times, this kind of nonsense would probably not fool anyone. But now Lorenzos mind was already occupied by the scene on the plane just now. He had no time to analyze these, so he immediately took the initiative to shake hands with Chang Haonan: Thank you so much for your permission, I will keep that tape for the rest of my life if I can, its amazing Youre welcome, just think of it as a gift to wish our cooperation a success. Chang Haonan held Lorenzo''s hand tightly with both hands and bit his lip - His mind is now filled with the famous scenes in Uncle Benshan''s "Selling Kidnappers". Valette, who almost gave up treatment, couldn''t stand it anymore and quickly dragged the other two people away from the scene. After confirming that the three of them were far away, Chang Haonan finally couldn''t hold it any longer. O "what are you laughing at?" ?Lin Guofan came up from behind and asked curiously: Why dont you go celebrate with everyone? ??The student who volunteered to fly could no longer stand on his legs after emerging from the tail turret, so he had been bombarding 6AIT without knowing what had just happened. Nothing, Im thinking about what terms to add to the agreement during the next negotiation. Chang Haonan straightened up and answered. ?This answer stunned Lin Guofan: Isnt it too much to add more clauses? After all, in his view, it is extremely rare to get the other party to agree to mutual recognition of airworthiness for regional aircraft. Chang Haonan shook his head: Its too much, they still have to thank us... (End of this chapter) Chapter 227 Big aircraft industrial park! Agreement reached! Chapter 227 Large Aircraft Industrial Park! Agreement reached! ?On the other hand, Lorenzo finally got the few videotapes he had been thinking about before leaving Yanliang Airport. Since uninvited people are not allowed to enter here, Schneider and other key members of the European delegation can only wait outside. ?These people could only see two planes taking off one after another and landing after a while. At least they all flew back. But the specific situation is still unknown to everyone. After all, the entire icing test was completed at an altitude of 4,500 meters. ?So after seeing Colombo and the other three people appearing at the airport gate, the group of foreigners waiting in the lobby suddenly stood up and swarmed around the exit. How is the test going? Have the Chinese really conducted experiments under SLD conditions? How far did the icing conditions on the aircraft differ from their predictions? What is the H-6 that took off with me for? ?Everyone had questions they wanted to ask. There was a lot of noise and various languages ??were intertwined, making it impossible to hear anything. In the end, Schneider took control of the situation, and as a representative asked the question that everyone was most concerned about: Based on what you saw on the plane, what kind of research are the Chinese people doing on icing and anti-icing? ?This question is quite technical, and Colombo is very self-aware and not prepared to answer it. Ms. Valette had given up the treatment and covered her forehead with one hand, signaling Lorenzo to have a quickie. So everyone looked at the old professor and Airbus engineer who was holding a large box of video tapes in his hand. Lorenzo thought for a few seconds, then shook his head. ?This reaction relieved Schneider: Let me just say, the Chinese people were probably bragging before. How can it be possible to make accurate predictions with the current technical level..." ?However, before he could finish speaking, Lorenzo continued: With my ability, it is completely impossible to estimate how high their research level is. ??? ?This answer is obviously beyond everyones expectations. Professor, what do you mean? Someone who was outspoken asked directly. Lorenzos expression kept changing, as if he was hesitant to speak. In the end he just lifted the box in his hand. I cant explain this matter clearly in one or two sentences. Lets go back to the hotel and talk in detail. That afternoon, everyone in the European delegation watched the entire video tape that Lorenzo had brought back in a temporarily borrowed conference room. ?Of course, the three simulation results pictures Chang Haonan sent to them were also circulated over and over again. So you are saying that they are really far ahead of us in this regard? ??Schneider''s voice was a little dry, and his tone was full of disbelief. Based on the news brought back from Colombo, as well as insinuations from multiple channels, they basically determined that China has certain advantages in the design of anti-icing and de-icing systems. More importantly, it has a complete set of airworthiness certification and testing systems related to anti-icing and de-icing. Otherwise, they would not have sent such a delegation to negotiate with China. But before coming to China, everyones understanding of this advantage basically stayed at the level of definitely better than us, but probably not as good as those in North America. Even before today, the common view was that China and North America might have their own advantages and disadvantages, and could provide an opportunity for equal negotiations with the FAA. As a result, Lorenzo told them directly today that the Chinese peoples research level in this field is not at the same level as Europe or the United States. According to his original words: "Based on my cognitive ability, I can''t calculate how big the gap is between us and them, nor can I estimate how long it will take for us to develop to this level. I can only say that if we don''t cooperate, There will be no possibility of catching up within five or six years. As for the future..." ?Lorenzo thought for a moment: That depends on the development of computer performance. Theoretically, we can use CFD methods to achieve similar effects, but the amount of calculations is simply unimaginable and is enough for supercomputers to calculate into the 22nd century. So we really need to do joint research with them? Schneider raised his head and looked at the other people, seemingly asking for advice. With all due respect, Schneider. Colombo suddenly interjected: Actually, anti-icing research, especially anti-icing research under SLD conditions, is not usually a particularly important field. "But at this juncture when the FAA uses aviation safety issues to attack us, there is only the lesser of two evils. The Chinese are at least not an imminent threat to us, and Boeing and McDonnell Douglas will merge without paying any price. , but its a fatal thing. ?Whether it is from the interests of the Finmeccanica Group or from Colombo''s own personal interests, he has very good reasons to promote the smooth progress of this negotiation. At this time Lorenzo also added: "In addition, icing simulation is a field that spans many disciplines. The ability shown by the Chinese people shows that they must also have made great achievements in basic physics and computer science. In short, if we can cooperate with them, we will not Suffer." This time its a real win-win. Schneider''s expression was wonderful for a moment. After Lorenzo said what he just said, he paused for a moment and talked about the AIT aircraft: "In addition, I paid special attention to the conditions during this test. The conditions they simulated using the AIT aircraft were indeed very realistic. The diameter of the artificially produced supercooled droplets was uniform, and the water mist formed could last for a considerable period of time. time, it has the potential to be used for icing test flights of larger aircraft! ?For a moment, Valette even worried that Schneider would die in this round of bombings. ?However, the latter did not really just focus on sightseeing in the past few days. After thinking about it for a while, he came up with his own plan: As for the AIT aircraft, it is not feasible to directly purchase an improved version of Figure 16, both technically and based on market feedback. But after communicating with the Toulouse headquarters in the past few days, I believe that we can produce one or two of our own AIT aircraft based on the Airbus A330 or A340 platform by purchasing subsystems or technologies from China. ?After watching the video Lorenzo just shot, everyone also knows what this AIT aircraft is. So another Airbus representative went on to say: Their H-6AIT looks a lot like an aerial tanker, so I thought... maybe we can also develop an aerial refueling model during this process? I think many countries will be very interested. This is an eye-catching proposal. ?So someone responded immediately: If this is the case, then I suggest choosing the A330 platform. The twin-engine configuration is more economical and will be more competitive than the KC135 or KC10 In short, this matter has been settled. ?In the third round of negotiations two days later, Schneider predictably put forward a requirement for the introduction of six AIT systems to retrofit two A330AITs. Even though Chang Haonan had been vaccinated in advance, Huai Guomo almost couldnt help but agree immediately when faced with this condition This is exporting aviation products to Europe! Its still Western Europe! The famous Airbus actually wants to buy core subsystems from China! Except for a few people who were already mentally prepared, other representatives from China were even stunned by this request. The first reaction was to look eagerly at Huai Guomo and Chang Haonan in the middle. ?Hurry up and agree to this? ??Its definitely a big deal that will be on the 7pm news! ?However, Huai Guomo, after all, had experienced many battles, and finally restrained himself, secretly signaling Chang Haonan to make up his mind. Although the AIT system is not on our list of technologies prohibited from export, it is not easy to go through the approval process for external sales. The latter cleared his throat, and his first words stunned many people in China. What is the list of technologies prohibited from export? Why didnt I know there was such a thing? Fortunately, the people who can sit here still have some professional skills in negotiation. Moreover, now everyone can see that their side has the advantage and quickly realize that they are preparing to raise conditions. Sure enough, Chang Haonan continued: But if the name of export is changed to cooperative production, then almost the entire process can be omitted, and work can start immediately. With all due respect, Mr. Chang. Schneider shook his head: You have indeed made great achievements in the field of icing and anti-icing, but as far as the level of aviation manufacturing is concerned, I dont think it is possible to carry out the cooperative production you mentioned. ?This is not a lie. For an aircraft of the A330 level, let alone production, China currently cannot even do final assembly immediately. After a pause, he continued: But if you are interested, the AE100 project we talked about before would be fine..." ? It must be said that Schneider is quite talented. This is because he can still think of talking about the AE100, which has basically cooled down, and prepares to make another fortune. ?However, Chang Haonan directly interrupted: Mr. Schneider, due to changes in the development path of our countrys aviation industry, the AE100 no longer meets our actual requirements, so there is no need to continue talking. Let Airbus design aircraft according to Chinese standards. There was no need to even mention it, so he simply stated his requirements directly: However, although we are not interested in producing AE100, we are very willing to become a parts supplier for Airbus aircraft. With the current development speed of my countrys air transport market, the number of passenger aircraft that need to be purchased in the next ten or even decades will definitely be a huge number. I think Airbus should be very willing to eat part of the cake. And if some parts produced in my country can be used on aircraft sold to my country, I think it will definitely be beneficial to the competitiveness of your companys aircraft models. Of course, you can send someone to verify the suppliers qualifications and the quality of the parts. Schneider did not answer right away because this was not his remit. But both he and Chang Haonan knew that Airbus would not refuse this request. After all, not all parts of an aircraft are full of technical content. What Schneider naturally wants to do is to increase sales by leaving the relatively large parts with low technical content and low profit margins to China. What Chang Haonan thinks is that as long as Airbus experiences the production capabilities of China, the profit-seeking instinct will inevitably prompt them to move more and more production links to China. After all, it was like this in the previous life. He just advanced the process by a few years. On the one hand, although these European standard parts cannot be directly used in future Chinese large aircraft, the experience of engineers and workers can help the development of the future aviation industry. On the other hand, it must be admitted that these days, even the parts that Europeans think have lower profit margins are still a sweet potato for China, and can also solve the urgent mass employment problem. Hence, Chang Haonan is preparing to take this opportunity to lay out a large aircraft industrial park in advance! Its time to get the J-10 (End of this chapter) Chapter 228 The organization is testing me! (2-in-1 Chapter 228 Organization This is testing me! (2-in-1) That evening, the European delegations reported the situation to their superiors. ?Chang Haonan and Schneiders feelings are not wrong. Since all parties involved got what they wanted, they quickly gained a higher level of empowerment this time around. ?As a result, in the fourth round of negotiations that followed the next day, China and Europe finally reached an agreement on the basic content of the agreement. ?However, this kind of thing involving more than a dozen countries and several very large international companies is not about going to the wet market to buy vegetables. Even with Chang Haonan''s efforts (and of course deception), the two parties are generally in a state of meeting each other halfway, but it involves the formulation of new standards, the selection of new suppliers and even the formation of new business alliances. The legal and technical details are overwhelming and far beyond the scope of the current two delegations. So all they can do now is to reach an "intent agreement" similar to project planning or research outline, and first tie the partners together with a piece of paper. As for the subsequent details, naturally professionals in various fields will be responsible for completing them. . As it happens, the professionals related to icing and anti-icing research are Chang Haonan and Lin Guofan. And this is also the most urgent matter at the moment Once such a high-profile multi-party cooperation officially begins, it is impossible and unnecessary to keep it as airtight as during the negotiations. Therefore, before the FAA reacts, they must counterattack in the aviation safety field where they think they have the advantage. An army. So Chang Haonans work in Haojing is not over yet. However, unlike the previous situation where he had to take on the main role, in the follow-up negotiations, he only had to sit on the scene and be a mascot of the town. To a certain extent, it was a short vacation, which made up for the lack of Spring Festival. After that, the rest time was wasted by being taken out of the house. At the same time, due to Chang Haonan''s operation, many contents were added to this agreement that did not exist in the original plan. ?For example, Airbus will select some Chinese companies as suppliers of its subsystems. In subsequent contacts with Airbus executives, the latter even stated that as long as China can provide enough orders, they can consider building the planned "Airbus Asia Final Assembly Center" in China. If combined with Chang Haonans idea of ??a large aircraft industrial park, the whole thing would have been a commendable event throughout the 1990s. ?Hence, the levels of representatives from both sides who came to Haojing were getting higher and higher. ??The previous head of the delegation was only Huai Guomo, deputy director of the Science and Technology Commission, but now even some leaders of ministries and commissions came as ordinary members. Just like Ding Gaoheng. Chang Haonan was enjoying his leisure time during this period, and he didn''t pay any specific attention to the long list of new delegations. Therefore, when he heard someone calling his name while driving on the street after dinner one day, he couldn''t even pass the sound immediately. Identify the other person''s identity. Director Ding? Chang Haonan turned around. Because his brain had just been in a state of relaxation, he hesitated for about half a second before he recognized the person in casual clothes in front of him as Ding Gaoheng. What a coincidence, you also eat after meals? ??The latter''s tone was relaxed, as if it was a casual chat after an ordinary encounter. "Uh... Director Ding, do you have something to do with me?" ?Chang Haonan is 100% sure that todays meeting is no accident. Because Hou Ding Gaoheng was accompanied by another person who looked about the same age as him, but his clothes were not casual at all. ??Although I cant recognize this persons identity, judging from his temperament, he is a big shot with dual identities of scholar and leader. Evidently he came prepared. There is indeed something going on, but Im not the only one looking for you. Ding Gaoheng was not surprised when Chang Haonan pointed out the purpose of his trip. He just turned his head slightly and introduced to the person next to him who had never spoken before: This is the one youve always wanted to meet, Lao Dus student, Chang Haonan. Hello, Comrade Xiao Chang, my name is Song Jian. ?The other party came forward, took the initiative to shake hands with Chang Haonan, and said in a slightly funny tone: I have heard your name from Director Ding and Academician Du many times before, and I have always wanted to meet you. But I heard that you are a busy man and have been away from the capital from the second half of last year to now, so I had no choice but to come to Haojing in person. ?Song Jian may have really just been joking when he said this, but for Chang Haonan, it was not easy to accept. ?But before he could speak, Ding Gaoheng next to him patted the former on the shoulder: "Hey, Old Song, you are not being honest. I have told you several times before about Xiao Chang''s return to the capital. It was obviously because you had something to do and you couldn''t come to our Science and Technology Committee. How could you pass the responsibility on to this young comrade? Where''s your body?" Ding Gaoheng and Song Jian were born in the same year. They also went to study in the Soviet Union at the same time. After returning to China, they worked together at the Second Branch of the Fifth Research Institute of the Ministry of National Defense, my country''s first missile research institute. They had known each other for a long time and had a good relationship. Therefore, they later After being exposed, the reporter just waved his hands cheerfully: Well...I am the director of the National Science and Technology Commission. It is hard to make a special trip to your Commission of Science, Technology and Industry for National Defense to meet with someone..." After exchanging pleasantries, the three of them started to walk on the road together. Comrade Xiao Chang, I heard from Lao Ding in the past two days that it was you who came up with the idea of ??building a large aircraft industrial park during negotiations with the European side? After chatting for a few words, Song Jian went straight to the topic. "Yes, my idea is to rely on Airbus and the more orders from Party A that may be obtained in the future, to focus on developing a group of companies that have the ability, or at least the potential to become upstream suppliers in the aviation field, and pool their strength into Together, we will focus on key technologies and create a demonstration industrial cluster that can achieve large-scale effects! ?Chang Haonan nodded and directly moved out the report about a certain aviation industrial park that he remembered from his previous life. As someone who has experienced the 2020s, even if he has never been involved in a publicity position, the Internet slang in his mind is enough to cope with some scene talk: On the one hand, this is to prepare some technical and industrial development for our own large aircraft manufacturing, and on the other hand, we also want to cut a piece of the big cake of civil air transportation! ? ? These words were not considered pretty in later generations, but Song Jian nodded repeatedly. After all, in the 1990s, industrial clusters were still a new concept in the world: Exemplary industrial cluster...not bad...it is indeed a jack of all trades. It seems that if our Comrade Xiao Chang reaches the publicity post one day, he will also be able to play a big role! ?This was originally just an unintentional sigh, but Ding Gaoheng next to him seemed to suddenly remember something: Dont say anything, Lao Song. Last year I accidentally read a commentators article titled How to Allow the Air Force to Achieve Freedom of Intercepting Beyond Visual Range. It seems to have been inspired by Comrade Xiao Chang. About the large aircraft industrial park, the three of them kept talking from the roadside of Factory 172 to a conference room, and the time lasted until that evening. Comrade Xiao Chang, I am very surprised that someone can come up with such a grand and industrially guiding idea. Song Jian, who was sitting on a sofa and holding a tea cup, sighed: But I didnt expect that the person who proposed this idea was actually you. ?This sentence really made Chang Haonan a little confused: Director Song, where do we start with this? The first time I heard your name was from Lao Ding at a high-level discussion on the development direction of the civil aviation industry. When Song Jian said this, he took a tactical drink of water and paused: "Old Ding''s... Oh, actually, it may be that your idea seemed very radical at the time. Although it is a more euphemistic way of saying it, it is essentially equivalent to overturning the various standards accumulated from the MD82 to MD90 projects in the past ten years. , so theres a lot of resistance. It wasnt until the end of last year, when McDonnell Douglas was suddenly acquired by Boeing, that the resistance it encountered finally became smaller. "After such a process, many people, including me, believed that you would be opposed to the plan to introduce the Airbus assembly line. But later we found out that it was you who proposed the whole thing. . ???After hearing this, Chang Haonan suddenly realized. This is "taking sides". ? Its just that the Science and Technology Commission behind him has been smooth sailing during this period and has almost completely captured the entire aviation industry system, so he has no awareness of this. After all, we are surrounded by our own people. ??If Chang Haonan prepares to shine in the field of aviation industry all his life, there is nothing wrong with it. But not long ago, he was still thinking about how to extend the scientific research results he has developed now and the various scientific research results derived from them to more fields. ??If it is labeled in such a unclear way, it will be very detrimental to subsequent plans. Director Song, this large aircraft industrial park is completely different from previous McDonnell Douglas cooperation projects, including Airbuss AE100 project that has no sincerity at all. ?Chang Haonan knew that he should not express his position in a hurry at this time. On the one hand, the Science and Technology and Industry Committee is indeed the most solid backing for him to exert influence. In the presence of Ding Gaoheng, only a fool would choose to draw a clear line. On the other hand, although he has no impression of Song Jian, the director of the National Science and Technology Commission, since Ding Gaoheng can bring him alone to meet him, it means that the two people should at least have the same attitude on core issues. So he still chose to discuss the matter from a technical perspective: "Whether it is the domestic MD90 or the AE100, a big premise is that for this model we must switch the development of the entire aviation industry, at least the civil aviation industry, to other people''s tracks and become a member of other people''s systems. This means We have to lose our autonomy to a considerable extent. For example, when McDonnell Douglas cooperated with us, they directly asked us to renovate the factory buildings and production lines in Shanghai, directly wiping out everything we accumulated during the Yunnan 10 period, so don''t say this If the two projects cannot be implemented, even if they can be implemented, it will be a loss-making business in the long run. "But this time, Airbus did not specify what we are going to do. According to the supply agreement, as long as the quality of the parts we provide meets the standards, they will agree to use them on passenger aircraft sold to our country. We and the Europeans are in a reciprocal exchange. , Its just a business deal and it will not damage the development of our own aviation industry, so I naturally have no objections. In fact, this has also been Chang Haonans attitude all along: The technology itself is irrespective of its source. ?In any case, there is certainly nothing wrong with moving the passenger aircraft final assembly process that was originally done abroad to China. The problem lies in the fact that some people are trying to gain self-respect from foreign countries and want to completely kill the independent aviation industry by taking advantage of the opportunity of producing foreign models. In the final analysis, China''s civil aviation industry, at least for a long time in the future, will inevitably have foreign models as its main aircraft. ? And even if the countrys passenger aircraft series develops in the future, it does not mean that it must use a 100% domestically produced fleet A single model certainly has benefits such as security and convenience, but it also means that risks cannot be shared, which is equivalent to putting eggs in one basket. For example, in the previous life, after the Boeing 737MAX was grounded due to structural risks related to flight safety, companies such as Ludao Airlines that use an all-Boeing fleet were caught off guard and had to urgently purchase Airbus A320neo. To train and recruit relevant engineering and technical personnel, it is better to use both models from the beginning. ?Havent you seen that airlines in the United States and Europe will also purchase models produced by each other (of course there are also airlines like Alaska Airlines that are pure Boeing). In this case, it is better to keep part of the profits in the country. ?Assembling airplanes is better than making shirts and socks, right? In the future, China will even be able to provide various subsystems and components to North American OEMs that use imperial specifications. Now anyway, Europeans still use metric units... ?Sure enough, after hearing Chang Haonan''s explanation, both Song Jian and Ding Gaoheng''s expressions relaxed a lot. "Xiao Chang, regarding this large aircraft industrial park, where do you personally think it is more suitable to place it? Shengjing? Haojing? Rongcheng? Or somewhere else?" Ding Gaoheng changed the subject and brought the chat directly to the site selection for the industrial park. Chang Haonan shook his head decisively: "Considering that the messy cooperation between Hufei and McDonnell Douglas has not yet been cleared up, in order to avoid unnecessary associations among people, and of course to avoid some people who want to hide the truth and occupy the magpie''s nest, I personally I think this industrial park should not be placed in these core cities where we have our own model layout. As soon as he finished speaking, Song Jian seemed to have been waiting for this answer, and almost immediately said: In that case, Comrade Xiao Chang, in which city do you think this aviation industrial park should be located? ?This question made Chang Haonan stunned. He looked at Ding Gaoheng next to him and found that the other person was also looking at him with very interested eyes. Even added fuel to the fire: As the proposer of the entire plan, Comrade Xiao Chang, your opinion is also very important. Hand on Chang Haonan directly. First of all, he really did not consider the location of the project, because from a technical perspective, it is not important, even if it is located in Tongliao. Secondly, he never thought that the two people in front of him would ask him this question. Because if you think about it, on a non-technical level, the impact of this answer may be too great. This is the aviation industry. Even if it is just starting out and can only do some non-core or even sideline businesses, that is still the aviation industry. In the 1990s, even companies such as daily chemicals, textiles, and electronics factories were prime targets for attracting investment. ??Many state-owned enterprises that are in good operating condition and can actually be sustained have been given away as trading chips in this process. ?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? Now, a large aircraft industrial park is in front of us. How many jobs can this thing bring, how much economy can it stimulate, how many talents can it attract, and how much consumption can these talents promote... ?Chang Haonan doesnt know, but there must be many. So many that he didnt dare to just name a few cities casually. Although the final decision-making power certainly does not fall to him, it does not even fall to Ding Gaoheng and Song Jian. But the sentence just now made it almost clear that his opinion will be stabbed above. This is no longer the era of two bombs and one satellite. ?Even if Chang Haonan wanted to learn from his predecessors and remain anonymous, he still couldn''t do it. Among other things, all the honors he received outside of school were listed under the MA60 project. The main reason is that at the beginning, no one thought that such a small twin-engine propeller regional aircraft could involve so much follow-up, so Chang Haonan himself, Du Yishan, and Ding Gaoheng all used the MA60 as their actual work The shield comes. So this matter must be known sooner or later, at least by some people. Of course, there is no need to mention the importance of the four words "Up to Heaven to Listen". The organization is testing me... Chang Haonan thought to himself as he looked at the two old foxes smiling brightly in front of him. (End of this chapter) Chapter 229 Putting burdens on young comrades Chapter 229: Putting burdens on young comrades Regarding the proposition given just now, Chang Haonans final answer was that he hadnt thought about it yet. Not only is it an excuse, but it is also true that I didnt think carefully about it. It is true that there was an Airbus aircraft assembly line in Jinmen in the previous life, but it was far from the scale of forming an industrial cluster, and it has no reference significance. Before Chang Haonan was reborn, the aviation industry was indeed preparing for a new large aircraft assembly base, but it was to serve China''s own model C919, so the candidate list was naturally all cities with already developed aviation industries such as Fuyan and Xinzheng. , Shengjing, Rongcheng, etc. are contrary to the principles he set before. But apart from these cities where he often travels on business, Chang Haonan really didnt go to many other places before his rebirth. It is no exaggeration to say that the success of the industrial park can even directly affect the development speed of subsequent domestic large aircraft projects - Superior leaders are also human beings and they also need confidence. If even an aviation industry base whose main business is to provide supporting services cannot be established with the strong support of the state, then when faced with the subsequent greater investment demand for domestically produced aircraft and the slower speed of transformation of achievements, it is inevitable that drummer. So even without taking into account any non-technical factors, this is a difficult decision to make. Whats more, the development of the national economy has been one of Chang Haonans key considerations from the beginning. ??If he considers some selfish reasons, he would like to put this industrial park in a non-coastal area. After all, judging from the development situation in previous generations, coastal provinces, especially the eastern coastal provinces, are indeed relatively developed. Even an additional aviation industry cluster can only be regarded as the icing on the cake. But for some inland areas, it is a timely help. However, things are not that simple. The unsuccessful experiences of Guifei and Shaanxi have shown that arranging high-end industries in remote areas will only reduce their attractiveness. Not only will they fail to stimulate the local economy, but they will also detract from the industry itself. Get a ride in. The trade-offs involved are impossible to determine in a flash for an ordinary engineer who has only been a project leader in his previous life. ?Most people who have been in technical positions for a long time have a common characteristic, or it can be said to be a shortcoming, that they are good at planning but not good at making decisions. The same is true for Chang Haonan. Technology often has an optimal solution or at least a better solution. In fact, it rarely really requires the so-called "decision-making power". Choosing between a clear choice of good and bad requires no decision-making at all. But if you want to have greater influence, this is an indispensable part. The system cannot help in this regard after all. Only he can overcome it by himself. After hearing Chang Haonan''s answer, Ding Gaoheng and Song Jian, who were sitting on the other side, both looked like "it''s just as I expected." You, boy, are indeed a student that Du Yishan can like. Ding Gaoheng leaned on the sofa with his upper body, assuming a sitting posture like a boss after he had completely relaxed: Although there is still a gap between the flexibility of the body and Lao Du back then, in terms of the sensitivity of positional awareness, I can basically learn it as a master. ?This passage obviously involves some of Du Yishan''s past history. Although he is very eager to gossip in his heart, Chang Haonan knows that now is not the time to ask this. He did not answer, because Song Jian obviously had something else to say. Sure enough, the other party followed Ding Gaoheng and spoke: "Xiao Chang, the matter of the Large Aircraft Industrial Park is indeed very involved. I can understand your caution in this matter. For an individual, it is indeed a good choice to protect yourself wisely." Chang Haonan was not surprised that part of his thoughts had been seen through. The two people opposite had never experienced any big storms. If they couldn''t even see this, it would be a ghost. "But have you ever considered that, on the one hand, as the proposer of the entire project, you have been in this bureau from the beginning, and it is impossible for anyone to replace your role in it. In fact, if not Because we really cant find a position for you before graduation, you may even directly participate in the final decision-making. On the other hand, Comrade Chang Haonan. Song Jian paused for a moment when he said this, and he directly called Chang Haonan by his full name, and his tone was more serious than before: "You should also realize that when Director Ding and the Science and Technology Commission took over the baton of the entire civil aviation industry, you are no longer just a technician engaged in research. We are now in a rapidly developing but blind During this period, the struggle over the path forward was even more intense than the competition in the technical field, and the aviation industry is just one area where the contradictions are more obvious. I think you should be very clear about this. " "The position of the right to speak is there. It doesn''t exist just because you close your eyes. This is the same as fighting. If we don''t occupy the position, the enemy will occupy it. At that time, the situation will be passive. " ?This statement is very straightforward, but it does not reveal the identity of the so-called "enemy". Given Song Jians identity and position, the most he can say is this. Chang Haonans previous speculation was obviously correct. He should stand with Ding Gaoheng on the issue of whether to be independent. As for the location of the industrial park, Im not worried about that. ??The dignified director of the National Science and Technology Commission has already said this, so Chang Haonan has to take a stand no matter what. What''s more, those few words Song Jian just said reminded Chang Haonan. ?Staying silent is not a solution to the problem, it is just equivalent to giving up the right to speak to others. Since he had already decided to do something big when he was reborn, there was no reason to back down when things came to a close, whether it was for public or private reasons. "After all, this matter is related to the layout of the entire national economy. Even if I provide suggestions, I cannot rely on patting my head, so I need some time to think about it. But please rest assured, the two directors, I will never give up on maintaining the independent development route. Back off." This last sentence obviously hits the key point. With your words, we feel relieved. Ding Gaoheng nodded with satisfaction and took up the conversation again. After a moment of hesitation, he suddenly said to Chang Haonan in a slightly lower tone: Besides, this time Lao Song and I are not trying to embarrass a young comrade like you by relying on our old age, but it was the intention of the higher-ups during the meeting a few days ago to put a burden on young comrades like you. Xiao Chang, I think you should know the meaning of this sentence. As soon as the words fell, the entire conference room fell into silence. ?Chang Haonan could hear his own heartbeat. Of course he knows what this sentence means. ?The words "to bear the burden" are usually followed by "to build a platform" and "to pave the way." (End of this chapter) Chapter 230 "973" plan Chapter 230 973 Plan Ding Gaoheng can only say this much about this kind of thing. As for how high this "top" is, Chang Haonan can only guess. In short, the round of dialogue just now was obviously a bit of a test and temptation. Judging from Ding Gaohengs reminder just now, Chang Haonan feels that his performance should not be bad. ??Its just that even he didnt expect that the follow-up to this matter would come so quickly ?After Chang Haonan digested the hints given by Ding Gaoheng just now, Song Jian actually started a new topic on the spot. Comrade Xiao Chang, I came to Haojing to see you this time. Actually, I have a second matter. Is there anything else? ?Chang Haonan felt that his heart might not be able to bear it. Dont be nervous, this time its not that complicated. Its basically a purely technical issue that you are familiar with. Looking at Chang Haonan who looked like a formidable enemy, Song Jian explained with a smile: "Just in the past few days, superiors have decided to use our National Science and Technology Commission as the competent unit to carry out a key basic research and development plan aimed at solving major scientific issues in national strategic needs. The plan is to start from the second half of this year or next year. Mainly for basic scientific research in cutting-edge high-tech fields. As for the scale and level...it will not be smaller than the 863 plan, and it should even have a similar official abbreviation, called the 973 plan. After finishing his words, Chang Haonan did not have any obvious reaction. On the contrary, Ding Gaoheng was so shocked that his eyes widened: Are you going to make such a big noise? ??He had roughly known about such a rumor before, but he only thought it was a medium-scale plan at the ministry level. However, according to what Song Jian just said, the State Science and Technology Commission is only the competent unit and main implementation department, indicating that the level of the plan is even higher. As for the benchmark 863 plan, it was even more unexpected. ?That is a national plan that will definitely enter the history books. Song Jian nodded slightly: "The current expectation is that it will continue for three to four five-year plans, that is, by the second decade of the 21st century, it will not only target domestic frontiers, but even include a number of achievements in the mainstream direction of the world''s scientific development frontiers. The important and original achievements must be kept secret from the two of them, and the superior leaders have great expectations and concerns about them. What about the specific research scope? Ding Gaoheng said seriously. Lao Ding, dont worry, this is exactly what I am going to say next. ?Seeing his reaction, Song Jian smiled and waved his hand: "Currently, a total of 8 key parts have been demarcated, including agriculture, energy, information, resources and environment, population and health, materials, comprehensive intersection and important scientific frontiers. The comprehensive intersection part includes key science in the comprehensive field of engineering, technology and science. question." "However, as Xiao Chang said just now, such a big matter cannot be decided at once. It must be fully demonstrated in advance. Therefore, from a cautious perspective, our Science and Technology Committee hopes to consult some professionals for their opinions. Lets see what research directions can be included. "I am so anxious to meet you, Comrade Xiao Chang, because of this. The several projects he has recently completed range from fluid mechanics to structural mechanics to control science, thermodynamics and even meteorology, which are fully in line with multi-disciplinary Cross-cutting characteristics. Soam I the professional being consulted? ?Chang Haonan looked calm on the surface, but he was still quite happy in his heart. ??Its almost like Im dozing off and Ill give you a pillow. The key basic scientific research plan mentioned by Song Jian is naturally the 973 plan that he has been thinking about since years ago. As the name suggests, this project was first proposed in March 1997. ?If you calculate the time, it is right now. Song Jian nodded: "That''s right, in the field of multi-disciplinary interdisciplinary research, China has just started and has not yet formed a complete theoretical system. However, your research covers a wide range of areas and is considered to be the most recent one. Therefore, as the competent authority of this institution, The person in charge, I hope you can give some specific opinions. "I see..." Chang Haonan felt enlightened and quickly introduced the Seiko plan, which was now basically on the right track: "Actually, at the end of last year, the 410 Factory in Shengjing and I felt that the current domestic basic manufacturing field was weak, and applied to the Science and Technology Commission for a project focused on improving precision machining capabilities, called the Seiko Plan, which should be considered Part of the integrated field of engineering technology science. Is there still such a thing? ??This topic really aroused Song Jian''s interest. He sat up straight and looked at Ding Gaoheng next to him with questioning eyes. Obviously, he had not heard about the Seiko Project from the latter. From a small perspective, Song Jian and Ding Gaoheng, who have a very good personal relationship, do not even know the status of key projects in each other''s departments. This is obviously one of the many unfavorable consequences of separation. , which is also the part that needs to be optimized in the future. This is indeed the case. I specifically requested expedited approval for this project at that time. Ding Gaoheng nodded, indicating that he knew about this matter, and then replied with a helpless expression: "But before you came out today, you were so mysterious that you never told me what key basic scientific research plans your National Science and Technology Commission has. Our Science and Technology Commission has tens of thousands of projects and plans underway at the same time. How could we know you wanted to hear this? ? ??Song Jian had no choice but to retract his somewhat accusing gaze after such a clear explanation, and looked at Chang Haonan again: So, Comrade Xiao Chang, I wonder how you plan to connect this Seiko Plan with the 973 Plan that our National Science and Technology Commission is preparing? ??If there was someone else sitting in front of him, Song Jian would not even ask this question. Because the answer is nothing more than to revise the original research content and add both sides at the same time. There are no rules prohibiting this. As long as enough results can be delivered in the end, it doesn''t matter even if the same person joins several more projects in the same research field. ??However, from Song Jian''s limited understanding of Chang Haonan, it can be seen that the latter is a very flexible person, otherwise he would not have turned what was originally just an ordinary cooperation negotiation with Europe into what it is now. So he was quite looking forward to the other party''s answer. And Chang Haonan did not disappoint him. "The Seiko Project itself is something that focuses mainly on the application technology level. The two main results it has achieved so far are the soft abrasive polishing machine that Comrade Han Youde of Shengjing No. 1 Machine Tool Factory and I were mainly responsible for completing. The other is the later Strictly speaking, the new milling and planing integrated alloy cutter head developed by another project participant, Hualian Heavy Industry Co., Ltd., cannot be regarded as basic scientific research in nature, and is not suitable for direct participation in the 973 project. " "However, science and technology in the same field are inherently two sides of the same coin. The Seiko Project can be used as a channel to refine scientific issues, and it can also be used as a window to output technological achievements. For example, in the process of researching new machine tools, we discovered that domestic machine tools The reason why the accuracy is not as good as that of imported equipment is that in addition to the common material problems, or to be precise, the material processing technology problems, the bigger problem lies in the design. " Design field? ?Song Jian and Ding Gaoheng looked at each other. Both of them are engaged in missiles and are not professionals in this field, so they put on a posture of being ready to listen. "Design is of course a very wide range. Our country is not lagging behind in some areas, such as the aerodynamic design of aircraft, and can even be on an equal footing with developed countries in Europe and the United States. But in the field of structural design, especially heavy or high-precision equipment In the field of structural design, there are still obvious gaps. ?When talking about technical issues, Chang Haonan gradually entered the state again: Lets take the machine tool we have studied before as an example. We found that the two most obvious problems are the vibration and stress of the machine bed and spindle during the working process. As a result, the product accuracy and machine tool life are far less than the design expectations. "However, after disassembly and inspection, it was found that the manufacturing accuracy of these two parts did not exceed the design allowable tolerance. We even later ordered parts of the same model with higher precision standards from foreign companies, but the results still did not improve. Finally, after our inspection of the machine tool The simulation of the stress situation under working conditions revealed that there was a problem in the overall design of the machine tool structural parts. Now, the first-class foreign machine tool design companies have begun to use numerical calculation methods to carry out static and dynamic analysis, and use multi-body topology methods to carry out structural design and optimization of high-precision machine tools, but domestic related theoretical research is still in its infancy. " ??After Chang Haonan finished speaking, he noticed that Song Jian gave him a pupil tremor on the spot. In fact, the previous content related to machine tools was indeed summarized by him during this period, but the subsequent summary of the research direction directly copied the naming of the second phase of the previous 973 plan... But it doesnt matter, different paths lead to the same destination. ?This time it was Ding Gaoheng who reacted first: "Xiao Chang, although I don''t know much about the field you just mentioned, this uses numerical calculation methods to carry out statics and dynamics analysis, and uses multi-body topology methods for structural optimization. Isn''t it... you are better at it? part? Chang Haonan smiled and rubbed his hands in embarrassment: Bu Cai has indeed dabbled in this area, and has achieved some research results, such as the design improvement of the J-8C wing structure and the turbojet 14 high-pressure compressor structure Song Jian''s pupils trembled even more violently. (End of this chapter) Chapter 231 Dean, I want to write a textbook! (2-in-1) Chapter 231 Dean, I want to write a textbook! (2-in-1) After the topic about Project 973 came to an end, the conversation between the three people also ended quickly. The two directors personally sent Chang Haonan out. Song Jian watched the latter disappearing around the corner and said with emotion: The waves behind the Yangtze River push the waves ahead...the little comrade Lao Du found is indeed extraordinary. Until now, the shocked look on his face still had not completely faded away. Ding Gaoheng turned his head and glanced at his old friend next to him: When I first met him, his behavior was similar to yours, and I will gradually get used to it. The latter reached out and brushed the white hair from his temples, and shook his head gently: Im old my ability to accept new things is poor, and I cant keep up with young people like them "There is no need to think this way. According to my observation, Xiao Chang''s situation should not represent the average level of young people today. We old guys still need to shine." To be honest, if young people are strong, the country will be strong. I hope there are more young people like this The two sat back on the sofa in the conference room while chatting, and they didn''t seem to have any intention of leaving. ?After a short while, Song Jian seemed to suddenly remember something and asked suddenly: By the way, Comrade Xiao Chang should graduate in June this year, right? "graduate?" Ding Gaoheng couldn''t react to the sudden topic. He nodded after about two seconds: "Yes, I graduated with a bachelor''s degree in June this year. I heard that Lao Du has been approved and will skip the master''s degree and study directly for a doctoral degree at his own school. In addition, President Shen Shiyuan of Beijing-Hangzhou has made a statement that he will do so within the scope of his authority. , try to shorten Chang Haonans PhD study time. After hearing the answer, Song Jian raised his head and stared at a corner of the ceiling and thought for a moment: How long does it take to complete a PhD today? If special arrangements are made, the degree can actually be awarded immediately after admission. Ding Gaohengs answer this time was almost without thinking, and he had obviously already considered this issue: "However, Lao Du and Xiao Chang themselves felt that this was too much of a movement. After all, although Beijing Hang University is a school under the supervision of our Science and Technology Commission, the awarding of degrees, especially the awarding of doctorate degrees under special circumstances, must still go through the Ministry of Education. Yes, these people... are not very reliable, and it is normal for them to have such concerns. " "So the current plan that Lao Du and I have settled on is to give Xiao Chang a treatment equivalent to that of a professor while he is studying for a Ph.D., but it will still be calculated according to the shortest time for a doctoral degree in a public full-time university under normal circumstances, and the award will be awarded after two years. Bachelor of Science." Such an arrangement made Song Jian nod repeatedly: "Well...you should have thought more carefully. This is indeed safer." "Why do you ask this suddenly? If you have thoughts about Xiao Chang, I''m afraid Lao Du and Jinghang University won''t let him go so easily." Ding Gaoheng asked with a somewhat curious tone. Sophisticated Song Jian saw through the other party''s true thoughts at a glance: Heh, Im afraid you, the old boy, also have ideas about him, and Im afraid Ill beat him to it Then the conversation changed again: However, I do have the idea, but Im not bold enough to recruit Chang Haonan directly to the Science and Technology Committee. "oh?" Ding Gaoheng raised his eyebrows when he heard the topic of interest: Are you ready to give Xiao Chang a heavy burden? Song Qing waved his hand: "We two old fritters shouldn''t pretend to be ignorant here. Who doesn''t know that at our level, we are also building a ladder when we are carrying a burden? I think you are just jealous that I have a 973 in my hand that has been decided by the top. plan" After a verbal retort, he then said seriously: The reason why I just asked you about Xiao Changs graduation date was because I wanted him to be a member of the first expert advisory group of the 973 Project. One sentence almost made Ding Gaoheng, who was drinking water tactically, almost choke. "Don''t worry, after listening to what you just said, I also realized that it was a bit too hasty." Looking at his somewhat embarrassed old friend, Song Qing smiled and consoled him: The list of members of the expert advisory group needs to be made public. The sudden appearance of a person without a professional title among a group of professors and researchers is really eye-catching. Ding Gaoheng finally recovered at this time: Ahemthen I really want to thank you on behalf of all the members of the Science and Technology Commission ?But before he could breathe a sigh of relief, Song Qing continued: "So I decided to set up an expert advisory group in each field to track, understand and guide project implementation in addition to the expert advisory group responsible for development strategy research and consultation on major issues. The size is about 4-5 in each field. Then invite Comrade Chang Haonan in, so that he can have a serious identity without revealing his personal identity. " ?This operation directly shocked Ding Gaoheng next to him. The Science and Technology Committee specially made dumplings for a dish of vinegar In order to give Chang Haonan a legitimate reason to participate in the 973 plan, a whole series of positions were directly created! On the other hand, the Science and Technology Committee, although it has given many material rewards to others in the past period, there is really no opportunity to formally arrange a position. ? ?The general consultant of the Seiko Project is considered a non-staff member. Moreover, even if Chang Haonan turns his hat into a full-time job after a few months of graduation, it is obviously impossible to compare with the 973 project that has received support from above. ?This made Ding Gaoheng feel a sense of crisis instantly. He originally wanted to say something more, but at this time, the door of the conference room was suddenly pushed open from the outside. Several plainclothes staff members with ordinary clothes but extraordinary temperament walked in. There was an older man following behind them. They both stood up at the same time: ?On the other side, Chang Haonan, who returned to his residence, still didnt know that he had been clearly arranged. He is currently taking stock of his gains during this period after the end of the year. Because the negotiation with Airbus created so much noise, he directly received up to 100 scientific research points, 1,000 engineering experience points, and up to 3,000 management ability points after signing the agreement of intent between the two parties. The overall status of the system has also become: Research Points: 600 Theoretical level: LV2 (3500/10000) Engineering experience: LV2 (2000/10000) Management ability: LV2 (3000/10000) Comprehensive ability: LV2 Projects in progress: 0 Projects that can be carried out: 2 Such panel data gives Chang Haonan a lot of confidence. ?Especially if you have accumulated as many as 600 scientific research points, it is even enough to allow the system to skip steps and directly give the results of part of the project in critical moments. So after resting for a few days in Haojing, he began to rethink what he had promised Tang Lintian before, which was to write the last two units of the book "Application of Finite Element Thought in Aircraft Structural Design". ? It turns out that the system does not regard writing a book as a project. In other words, the plug-in has failed. ?But that doesnt matter. Chang Haonan also has his own past experience, as well as the theoretical knowledge he has learned after his rebirth from various sources including but not limited to systems, books and journals. He can try to make a systematic summary of the application of the finite element method. ?According to his original idea, there were only two chapters anyway. One chapter could be devoted to computational fluid dynamics and the other chapter to computational structural mechanics. First introduce some basic concepts, then write down a few calculation examples, and finally leave some homework after class. But the more this work progressed, the more he found that what he wrote was still not basic enough. The textbook is originally intended for beginners, and they were beginners in the 1990s. Many people only start learning to use computers at the undergraduate level. There are also many undergraduate training programs for engineering majors that do not include the content of partial differential equations. The receptivity of these groups must be taken into consideration. If three new proper nouns need to appear in order to explain a proper noun, it at least indicates that there is a problem with the order and logic of the content arrangement. As a result, more and more content was written in the original two chapters... Within a few days, the content space reserved by Chang Haonan exceeded one hundred pages. ??However, he has only just written about the inf-sup conditions for the analysis of incompressible media and structural problems. This is the result after deleting a lot of content and exercises. ?So after much thought, Chang Haonan gritted his teeth and stamped his feet, and decided to give up doing the dojo operations in the snail shell and directly let himself go. Lets start with vectors, matrices and tensors! This is followed by an introduction to basic concepts of engineering analysis and mathematical modeling of engineering systems. Then there are methods for solving mathematical models of discrete systems and continuous systems. How the finite element method is constructed Construction and calculation of isoparametric finite element matrix Nonlinear finite element analysis based on solid mechanics and structural mechanics Methods for solving characteristic problems ?After Chang Haonan spent a few days outlining the outline, he finally realized how big a hole he had dug for himself. Two chapters? Laughing to death, both books may not be finished. Finally, he called Tang Lintian directly. Luckily, the other party happened to be in the office and the call was connected almost instantly. Hello, Dean Tang, I am Chang Haonan. Chang Haonan didnt talk nonsense and got straight to the point: Regarding the preparation of new textbooks on finite element analysis, it is really difficult if we follow the current thinking..." Tang Lintian on the other end of the phone couldn''t sit still: "Xiao Chang, calm down first. If you have any difficulties, the college will try its best to help you with customer service..." ?What he is most worried about is that Chang Haonan gives up his career, and the value of the entire course may be greatly reduced. ?Tang Lintians ambition is to promote this course, or at least this textbook, nationwide. As a result, the latters next sentence is even more heavyweight: Dean Tang, the length of two units is really not enough. I hope you can approve it and let me write a textbook directly! Chang Haonan looked at the outline he had listed in his notebook. The first-level and second-level catalogs that he had thought of so far were listed for 7 pages. ?Even if you want to write a book, I''m afraid it has to be divided into two volumes for normal use, otherwise I''m afraid it will be printed as a brick. So he immediately added: Wellone volume may not be enough, so it needs to be divided into two volumes. ?There was silence on the other side of the phone for a moment. Dean Tang? ?Chang Haonan called out again tentatively. Although Tang Lintian has no control over the matter of writing a book, if he wants to use the written book as a teaching material, he will naturally need the cooperation of the other dean, and may even need to adjust the undergraduate training program to achieve this goal. Seamless connection in teaching. Otherwise, wouldnt it be just self-entertainment? "ah?" Tang Lintian finally reacted: Write a bookor two? He has no objections to Chang Haonan''s ability to improve his strength on his own. As for the orderliness he showed when he gave lectures to most of the college last time, there is no need to worry about the quality of the teaching materials he writes. The only problem is schedule. ?Chang Haonan is indeed very strong, even stronger than most professors in the college. Tang Lintian knows this very well. But people who have never actually written a book can easily underestimate the difficulty of this matter. ?Especially for someone with a bright mind like Chang Haonan, he may have already typed up the draft when creating a new folder. ?As a result, when I actually started writing, I discovered that writing a book is not just as simple as piling everything in my mind onto paper. Then it just fell apart. ?So Tang Lintian asked in a more tactful tone: "But it''s almost March now. Even if we arrange for your first-year graduate students to take this course in the second semester, there will only be one year left and two volumes of textbooks... Xiao Chang, you can really finish it. "?" Hearing this question, Chang Haonan smiled: Dean Tang, I made this call just because I knew I couldnt finish writing. I am writing textbooks for our own college. Arent you prepared to give me a few people to help? This was also his second purpose for contacting Tang Lintian. If we follow the outline decided in the past few days, the total length of the two volumes will be at least 700-800 pages, which will also involve a large number of charts and formulas that are difficult to input and typeset. If Chang Haonan were to type it by hand, I''m afraid I may not be able to finish it after I graduate with a PhD. It is natural to find some foreign aid. He has indeed never done anything like writing a book before. But I have never eaten pork, and I have always seen pigs running away. Before his rebirth, Chang Haonan knew that there were many books, especially textbooks, where the chief editor actually did not write or only wrote a very small part of the specific text, and was only responsible for designing the overall structure and checking the content. ??Of course there are also people who are completely hands-off shopkeepers, but that falls into the category of academic ethics issues. ?Given the current situation, he himself must still be actually responsible for some theoretical content, but other less valuable tabulation, drawing and character input functions can be left to others. ?Chang Haonan''s time is still relatively valuable, and it is difficult to spare a large amount of time to do this kind of thing. How many people are there... ?Tang Lintian hesitated for a moment: Writing textbooks requires some experts after all, otherwise you have to teach the content first You cant be too old, otherwise typing on a computer will not be as fast as handwriting After some consideration: Well, how about I ask Teacher Liu Hongbo and his research team to help you with this work? Professor Liu Chang Haonan was stunned when he heard the name. In less than a year, Liu Hongbo has completed his transformation from his teacher, to his senior brother, and will soon become his subordinate. ?.jpg But it is indeed a good choice. ?As long as the other party has no objections, Chang Haonan will naturally welcome: Okay, thats it. (End of this chapter) Chapter 232 A celebration party for the three gates! (2-in-1) Chapter 232 The celebration party of the three gates! (2-in-1) When Liu Hongbo received the task of "helping Chang Haonan complete the compilation of a finite element method course textbook" about a week later, he agreed with almost no psychological fluctuations. Having gotten used to it. Besides, now its just a matter of helping his fellow juniors. They have the same seniority, but the age gap is a little bigger, so its not embarrassing. ??He was just very lucky that Du Yishan came out halfway and snatched Chang Haonan away from him ??If it hadn''t been for this kind of thing, now he would have become a thief for his own students. ?Oh, he cant even be considered his student, because Chang Haonan is still technically studying for an undergraduate degree. In short, if that happens, he may not be able to continue to work in the education world. As for what made Chang Haonan write a book, put his name on it and reach the top of his life... Liu Hongbo never thought about it in that direction. It is not just a matter of academic ethics. But before anyone does this kind of thing, he must weigh the other person''s weight Look at the circles Chang Haonan is currently in contact with. It can be said that there are scholars who talk and laugh, but there are no idle people in the contacts. ?Even if this kind of person becomes his graduate student, it is absolutely impossible to be manipulated. Didnt you see that even Du Yishan seldom asks about Chang Haonans projects now... At any rate, the former has paved a lot of roads with his own influence. ??If it had been him, Liu Hongbo, he would have written the words "moral and unqualified" on his forehead. ??It will only embarrass both teachers and students. So its better to be brothers. He still has this self-awareness. Liu Hongbo, who returned to the office, spread the two-page fax he got back from Tang Lintian on the table and breathed a sigh of relief. What is written on the paper is the outline and basic ideas determined by Chang Haonan for that textbook. Start with vectors? He read it over and over again, but still felt that the content was a bit too lengthy. At least the contents of the first three chapters should have been covered in the basic courses of the first and second year undergraduates, so there seems to be no need to repeat them here. After thinking for a moment, Liu Hongbo picked up the two pieces of paper on the table, walked out of the office quickly, and came to his laboratory. It was already the fifteenth day of the first lunar month. Although there were still a few days until the school officially registered and started, many students had already returned to school early. "Teacher Liu." ?Three graduate students who were busy in the laboratory saw their supervisor who suddenly walked in. They said hello casually and continued their work. As a relatively young professor, Liu Hongbo himself often appears in the laboratory, so students are not surprised. But the purpose of his coming today is quite special. I have a question to test you. Liu Hongbo came to the blackboard at the other end of the laboratory, picked up a piece of chalk from the side, and wrote a two-dimensional matrix =[1, -1, -1, 1] on the blackboard. When he turned around, he saw three confused expressions. Teacher Liu, this is to... ?The three students who came back early to start experiments are all senior masters or doctoral students, and they are already a little unfamiliar with the exam format. Whats more, Liu Hongbo has never played this trick in the past. Suppose in the plane stress analysis, the stress measured at a point in the non-primed coordinate system is the on the blackboard. Now you are asked to establish its components in the primed coordinate system. What would you do? ?The three students looked at each other for a few seconds, but this kind of question obviously didn''t stump them, and one of them quickly wrote the answer on the blackboard. ?\''=PP(T) Where P=[cos, sin, -sin, cos]. "very good." Liu Hongbo nodded with satisfaction: Then lets change to a slightly more complicated problem. He erased the things on the blackboard and drew a beam fixed to the wall. This is a beam with bending stiffness EI, the load per unit length is P, and the spring stiffness at the other end of the beam is k. Now we need to use four finite difference nodes to establish the control equation of the beam response. This time, no one could give the results quickly. In fact, from the looks in the eyes of the three students, Liu Hongbo knew that they should be very confused about this issue. After a while, the boy who had just written the answer said with confusion: Teacher Liu, is there any connection between these two questions? They At this time, Liu Hongbo suddenly realized that he could not give a systematic answer in words. Simply put, the first question can be seen as the theoretical basis for solving the second question. This explanation is obviously unsatisfactory. Teacher, I remember you said in class before that the theoretical basis for an airplane to fly is only Newtons third law proposed in 1687, but it was not until 1903 that humans built the first airplane The other person''s tone was obviously slightly dissatisfied. "you''re right" Liu Hongbo stared at the blackboard for a few seconds, then patted the student next to him on the shoulder: Its okay, you can continue your work. After saying that, he strode out of the laboratory under the eyes of three incomprehensible eyes. In fact, what Liu Hongbo raised was just the simplest linear analysis problem in rigid body mechanics. If these students are given enough time, they should not be unable to solve it. But the reactions of the three of them just now show that for an inexperienced person, the distance from basic mathematical knowledge to practical engineering applications is not as close as he had imagined before. In other words, Chang Haonans design of the knowledge structure of the textbook is right. The first three chapters are not useless parts. The density of knowledge in university classrooms is often very staggering, and there is not much time for students to slowly think and react. If the textbooks are written in a simpler way, it will easily lead to students getting stuck somewhere and never following the course again. The situation of not thinking in class. So there is a saying - In math class, I bent down to pick up a pen. When I raised my head again, it was as if I was listening to heavenly scriptures. ?Perhaps its because compared to other people who compile textbooks, Chang Haonan himself is still a student, so he grasps these pain points more accurately. Liu Hongbo shook his head and sighed as he walked: MD, thats outrageous. He was originally planning to continue to subcontract the basic content to his graduate students to write. But now I have changed my mind. Obviously, Chang Haonan, a junior fellow student, has a big thigh that can be embraced not only in academia, but even in the education world. So he decided to write the book in person. Just think of it as a way to experience Professor Changs educational thoughts in advance Liu Hongbo told himself this as he opened the office door. In fact, Chang Haonan originally planned to take advantage of his time in Haojing to write out part of the framework before collaborating with Liu Hongbo. This will make it easier for the other party to understand your overall ideas in this book, and save a lot of work on later revisions. But God is not as good as man, so he just wrote the beginning part, and one night he received a call from Ding Gaoheng. Director Ding? Xiao Chang, pack your personal belongings immediately and come back to the capital with me tomorrow morning. Back to the capital? ?The other persons words made Chang Haonan a little confused: But arent the negotiations here not over yet? "Now the most important things have been basically decided, and the things in the capital are much more important. You must be present." Ding Gaoheng did not clearly state the purpose of his trip to Beijing on the phone, but it sounded obviously very urgent. So Chang Haonan subconsciously thought that there was another technical problem that needed him: Okay, let me prepare. Also, can you tell me what kind of work it will be? Its also good for me to prepare in advance. Hearing this answer, Ding Gaoheng let out a hearty laugh: Why, can the call I made just be to assign you a task? Chang Haonan rolled his eyes and said, isn''t it... ?Of course he wouldnt say it out loud yet. Isnt this a conditioned reflex? When I was celebrating the New Year at home at the beginning of last month, I answered a phone call around this time after dinner, and I was called to Haojing. This time... its an unexpected situation, an unexpected situation... Ding Gaoheng was somewhat embarrassed when talking about this matter. After all, it was he who recommended Chang Haonan as a technical consultant to the negotiating delegation. ?At the beginning, we only wanted to let the latter play some check-in role, but no one expected that it would actually open up a whole new world for China''s civil aviation industry. ?At least the regional airliners built in the future will be able to carry both Chinese and European certifications. As long as their technical level is excellent, they will not have to worry about lack of sales. Brand effect is like this. Even if it is exactly the same thing, it will be more easily recognized if it has a **** standard brand. As for the aviation industry, Europe and the United States are the first countries to develop, so naturally they have the most recognition. From this perspective, Chang Haonan can be said to be the hero of the entire Chinese aviation industry this time. Dont worry, its a good thing to call you this time. Youll know after you come back to the capital with me tomorrow. Ding Gaoheng said comfortingly to the other end of the phone while thinking about what benefits he should offer to compete with the National Science and Technology Commission for people. Of course Chang Haonan doesnt really have any opinions: In that case, Ill wait for the good things Director Ding will bring tomorrow! The person responsible for taking Ding Gaoheng and Chang Haonan back from Haojing was a Boeing 737-300 of the 34th Air Division. To the latters surprise, their plane landed directly at the airport in the western suburbs of Beijing. Since the opening of Terminal 0 of Beijing Capital International Airport in 1958, it no longer undertakes any civil aviation business and has become a specialized military airport. Chang Haonan had never done anything earth-shattering in his previous life. Although he had done a lot of work after his rebirth, the time was still too short after all. In fact, he had not seen any big occasions, so the call he received last night was obviously inappropriate. After the ordinary phone call, he actually thought about many possibilities. ?However, judging from the scene of picking up the plane in front of him, the battle this time seemed to be much bigger than he expected. Not to mention the BJ2020 and other common small cars at the front and rear of the convoy in the distance, parked in the middle were several exquisitely crafted black luxury cars with square heads and square heads. Even if Chang Haonan doesnt know much about cars, he still knows them. Nissan Duke King V6. It can be regarded as Nissans last generation luxury car. ?Of course, there are even Mercedes-Benz S600s in the army these days, but they will not appear here, but in the hands of some military companies. ? And according to the course of history, there is not much time left before "no business is allowed", and many military companies have already begun the process of liquidation or divestiture. In short, in this year, the specifications of a fleet of several Dukes and Kings are already quite good. After getting off the plane, Chang Haonan followed Ding Gaoheng and got into a vehicle in the motorcade led by several staff members wearing casual suits. Director Ding, we are going... ?After getting in the car, Chang Haonan looked at the luxurious accessories inside the car with some restraint. ?This kind of treatment is the first time in his two lives combined, so you cant blame him for not letting go. Having already arrived here, Ding Gaoheng naturally had nothing to hide. After straightening his clothes, he replied simply: Jingshan Front Street. ?Chang Haonan was stunned. This place name is quite unfamiliar to him who has returned from more than 20 years ago. Ding Gaoheng next to him also saw that he failed to understand, so he added another explanation: It is the three gates. ifier ?Now Chang Haonan knew It is now early March 1997. The Bayi Building at No. 7 Fuxing Road, which he was familiar with in his previous life, has just broken ground at this time, so Junwei''s office is still at the third door. ?Thinking of this, Chang Haonan felt his heart beat a few times unsatisfactorily. ??The highest-level meeting he has attended before was the internal commendation meeting of the Aerodynamic Research and Development Center. Now he has directly participated in a big event. To say that he is not excited at all would be a lie. Just kidding, how many people have never even entered the county in their entire lives. ?Whats more, we were picked up by a motorcade this time. So theres a meeting? Ding Gaoheng nodded: "Yes, a small-scale commendation and celebration meeting. Of course, the semi-public statement within the army is to celebrate the official installation of the J-8C aircraft. You will know the more specific situation when you arrive." ?Chang Haonan did not continue to speak, but turned to look at the roadside buildings passing quickly outside the car window to stabilize his somewhat fluctuating emotions. ? ?The commissioning of just one type of aircraft will not lead to a celebration party at the three-seat gate, even if the J-10 is built. And it has only been three months since the small-scale trial installation of batch 00. According to the training frequency of the aviation force in the 1990s, the troops may not even be able to fully understand the functions of the aircraft, and it should not be officially put into service so soon. . But since this statement is semi-public, it should not be a complete fabrication. It must also be related to the J-8C model. In other words, in the three months since he left Shengjing, something terrible might have happened! (End of this chapter) Chapter 233 Captured the electronic warfare pod? Chapter 233: Captured the electronic warfare pod? When Chang Haonan and Ding Gaoheng arrived at the conference hall on the first floor of Sanzuomen together, they were more sure of what they had just guessed on the way. Because in just a glance, he had already seen many familiar faces. ??Yang Fenghao, Yan Zhongcheng, Zhong Shihong and other old colleagues who were deeply involved in the August 3rd Project need not be mentioned. There are also other comrades from the 112th Factory, 601st Institute, and even the 611th Institute, as well as many figures wearing military uniforms. ????????????????????????????????????????????Ha ? After getting a little closer, it was not difficult to find that a total of 6 pilots who had participated in the 00 batch pick-up before were all listed. ?In addition, a group of test pilots such as Fu Guoxiang who have been deeply involved in prototype flight tests are definitely indispensable. Simply put, representatives from all parties related to the August 3rd Project were sent here. A huge banner with red background and white text was hung above the rostrum at the entrance. The printed text was to celebrate the official delivery of the J-8C aircraft to the army. This was a semi-public statement, probably because this kind of scene still required photos after all. Send out press releases. ?Perhaps because todays theme is celebration, the atmosphere in the entire venue was relatively relaxed. Even when Ding Gaoheng walked in, everyone did not act too restrained. Of course you still have to have the basic etiquette that you should have. Director Ding. ?Yang Fenghata and others who were sitting not far from the door stood up one after another. Then they saw Chang Haonan, who was following Ding Gaoheng and had just changed into a suit in the next room. Permanent worker? How do you... Zhong Shihong, the youngest among them, still lacked concentration and subconsciously blurted out in shock. Chang Haonan''s appearance here is of course something that everyone can expect, but the appearance of Ding Gaoheng really surprised many people. You must know that these three gates are important military areas. Even if you have a pass, it is absolutely impossible to enter and exit casually. Moreover, everyone here is picked up by a special car. There are detailed plans for the order and time of arrival. Basically, there will be no two differences. People coming over encountered this situation by chance at the door. Even if there is, there will be a delay when entering the door. So there is only one possibility, that is, in the original arrangement, Chang Haonan accompanied Ding Gaoheng. The director of the Commission of Science, Technology and Industry for National Defense can be said to be the head of the entire national defense science and technology industry. Almost all the people without military status in the venue today are Ding Gaohengs subordinates. Chang Haonan seemed to have a close relationship with the latter. This is serious. People who have been deeply involved in the August 3rd Project, especially Yan Zhongcheng and others who went to 624 to do the turbojet 14 engine test, more or less know that Chang Haonan used an aviation industry standard to help the Science and Technology Commission win the entire civil It is a matter of jurisdiction over the aviation industry, so it is expected that he has a close relationship with the Science and Technology Commission system. But it is one thing to have a close relationship with the Science and Technology and Industry Committee, and it is another thing to have a close relationship with the director of the Science and Technology and Industry Committee. ?Furthermore, Ding Gaoheng has another level of identity Although Nie Shuai himself passed away four years ago, his influence in the military industry has not faded. ??Yang Fenghao, Yan Zhongcheng and others are relatively calm and do not show their emotions easily, but when they look at Chang Haonan, they also look at Chang Haonan with a bit of different attention than in the past... Why, it shouldnt be too surprising that Comrade Xiao Chang came to attend this celebration, right? ? Ding Gaoheng used a slightly joking rhetorical question to put Zhong Shihong''s little gaffe away. ?The latters mind was spinning fast enough, and he quickly added something: Of course not. On our way to the capital, Mr. Yang also said that if Comrade Chang Haonan was not present at the celebration related to the August 3rd Project, we couldnt even use chopsticks! He praised several people without leaving a trace in one sentence, and also changed the topic to Chang Haonan''s contribution to the August 3rd Project. Yang Fenghata next to him also nodded. After all, he did say this: Yes, without Comrade Xiao Changs outstanding contributions in wing design and aerodynamic improvements, the 83rd Project would have been delayed for another year or two. Yan Zhongcheng, whose facial muscles are relatively stiff due to an injury when he was young, can only maintain a serious face most of the time, also showed an extremely rare smile, and joined the lineup of praise for Chang Haonan: To be honest, I, the chief designer, have gone back and looked at Xiao Changs improvements to the high-pressure compressor part of the turbojet 14 over and over again. I always see new things and learn new things every time. ?Although what they said was true, Chang Haonan had to be humble no matter what when facing this kind of scene; "Mr. Yan''s words are enough. The turbojet 14 can improve the performance of the current quasi-third-generation engine. It cannot be achieved by optimizing the high-pressure compressor alone. There is indeed potential in the combustion chamber and turbine. In this regard, at most I am standing on the shoulders of giants. The correct way to be humble is not to say that your own work is not important, but to say that the work of others is also important. This is especially true when a big leader is around. Okay, this good celebration party will turn into a technical seminar again if you continue like this. Ding Gaoheng smiled and waved his hand, ended the routine opening of the compliment session with some words, then said that he still had something to do and turned to leave. ?In order to prevent the conversation from getting cold feet, and more importantly, to satisfy his curiosity along the way, Chang Haonan took this opportunity to ask questions about the true purpose of the celebration. "you do not know?" ?Yang Fenghata and the others on the opposite side looked at each other: Last month, oh, on New Years Eve to be precise, Deputy Division Commander Zheng Liangqun led a two-plane formation to successfully intercept and shoot down a MiG-25 reconnaissance aircraft on the west side of the Ladakh Mountains. As it happens, Deputy Commander Zheng is here today. I can ask him to tell you the details of the battle after the celebration is over. Chang Haonans eyes widened when he heard the news for the first time: Is there such a thing? No wonder they formed such a huge formation. ?In the original timeline, the MiG-25s of the 102nd Squadron stationed at Parvatipur Air Force Base have always been China''s major concern in the southwest plateau area. ?The other party relied on the height and speed of its aircraft to repeatedly invade and even cross the airspace to conduct reconnaissance or simple provocation missions. Until those MiG-25s were retired due to disrepair, they did not encounter any effective interception means. But now, with the technical support of Chang Haonan, the situation has obviously changed. ??The triple-sonic squadron, which still thought it could rely on its high altitude and high speed to be invincible, finally encountered an opponent that could defeat them. ??And the ace unit of the 1st Air Division is really good-looking, using two aircraft that the pilots are not completely familiar with to complete this shootdown that can be said to be proud of. For Chang Haonan, although as a scientific researcher he cannot go into battle to kill the enemy personally, it is exciting enough that the aircraft he developed can participate in it. What you want is a sense of participation. Not only that, you may not believe it even if you say it. ??Yang Fenghata, who has gray hair, is also very happy when he talks about this topic. For him, the J-8C''s achievements are like his own children becoming famous, so he is naturally very happy: Because our pilot chose the right time to intercept, the speed and altitude of the MiG-25 had already dropped when it was shot down, so the pilot was still alive and the wreckage of the aircraft was relatively intact. Plane wreckage Chang Haonan touched his chin: The wreckage of the MiG-25 is nothing, but if it can be recovered, it would be a good commemoration. After all, it is the first victory of our aviation unit in nearly 30 years. Unexpectedly, Yang Fenghao shook his head and explained: Of course the MiG-25 itself is not important, but there is a very powerful electronic warfare and radar reconnaissance pod hung under that aircraft, an American product! Chang Haonan, who was a little unfazed just now, immediately became energetic: So that pod is now ?Yang Fenghata showed a pure and happy smile that was somewhat inconsistent with his age: In our hands. (End of this chapter) Chapter 234 jamming pod, reverse engineering Chapter 234 Jamming pod, reverse engineering Our pilots did a great job... Chang Haonan, who was in a good mood, immediately made a fist-to-palm fistfight, which made a loud bang that attracted a lot of attention in the venue. ?For a moment, he even wanted to use the word "awesome" to comment, but he still swallowed the words forcefully. After all, this is Sanzuomen, and some of the less elegant oral habits have to be restrained. ?However, the sound just now attracted the attention of several pilots on the other side of the venue. Those who are capable of flying airplanes naturally have good eyesight, so even from a distance of tens of meters, someone quickly recognized Chang Haonan. So a few minutes later, several more people gathered around the latter and joined the discussion. Chang Haonan had an encounter with Zheng Liangqun when batch 00 was delivered for trial a few months ago, but at that time he chatted more with two comrades from the 25th Regiment of the 9th HNA Division. Congratulations to Deputy Commander Zheng for achieving the first over-the-horizon shootdown of the Chinese Air Force. It also gives credibility to the products of our aviation industry! The shooting down of Zheng Liangqun broke many records of the Chinese Air Force. The most direct one was the first actual combat result since 1967, but "the first in thirty years" is definitely not as good as the real "first". . "Hey, what did Chang Gong say? It''s obviously your equipment that gives us pilots the opportunity to display our abilities. If there were no new aircraft that were just installed, then even if we caught the time window for the MiG-25 to attack, we would only be able to It may be beyond our reach. It can be seen that the pilot comrade opposite is trying his best to suppress his smile, but obviously the effect is not very good. After all, even Yang Fenghata was as happy as a child when talking about the achievements of the J-8C, let alone Zheng Liangqun who personally shot down the MiG-25. Which fighter pilot wouldnt want to paint a real downed mark on the side of his plane? What''s more, as Chang Haonan just said, this is the first beyond visual range battle result. The Chinese army began to equip aircraft with theoretical beyond-visual-range combat capabilities in the mid-1980s. For nearly 10 years now, there are very few pilots who have even shot over-the-horizon aerial targets. And he, Zheng Liangqun, has already achieved a result. . Far ahead of its peers! It is definitely an achievement that can enter history. ??Maybe even give him a chance to spread his experience and training methods across the military From now on, all pilots in the navy and air force will be at least half of his apprentices. ?Just thinking about it is exciting. Now Zheng Liangqun wants to say to someone when he sees him, "How did you know I shot down a MiG-25?" However, due to the special nature of going abroad to fight, he cannot share this joy with most of the people around him. Even this time I have to receive the honor in other names, which makes me feel very uncomfortable every day. Whats going on with that pod? Have you started researching it? Can we use it as a reference to reverse engineer one? Chang Haonan, who has had similar feelings, knows the pain of holding back the feeling of accomplishment and being unable to express it, so he quickly threw out several questions like a barrage. Satisfying my curiosity is just a way of doing it. The main purpose is to create an opportunity for Deputy Commander Zheng to express himself. Sure enough, when he finally faced a group of people who didnt need to cover up and had someone to set up a ladder for them, Zheng Liangqun, who usually didnt talk much, quickly started chatting: The MiG-25s of the 102 Squadron are only the most basic RBK and RUS types. They originally only had daytime photographic reconnaissance capabilities. Although they are difficult to deal with, the actual threat from Zhenli is not that great. "But the last few times they flew were obviously not normal optical reconnaissance routes. Later we shot down the plane and captured the pilot and found out after a first interrogation that they had somehow hooked up with the United States. The CIA had attached a MiG-25 A multifunctional pod that can perform active and passive radar reconnaissance at the same time, it can not only perform SAR scanning, but also automatically detect and collect radar signals. "so smart?" ?Chang Haonan knew that he only needed to be a good supporter at this time. Zheng Liangqun nodded and continued: "That''s not all. When we were preparing to intercept this time, they also launched electromagnetic interference several times in a row. Whether it was a surface-to-air missile position or our interceptor aircraft, they would lose their target when they switched to tracking mode and prepared to launch missiles. The pod was also responsible for the trick. The captured pilot said it could create a false target for the radar. " Then how did you shoot him down in the end? Was it with a machine gun? Of course not, using machine guns at that altitude is too risky, and the effect is not good. Zheng Liangqun did not reveal that they had really considered this life-threatening plan at that time. After all, it was not used in the end. It seems hypocritical to say this. Chen Jialiang, who had been waiting eagerly beside him, finally got a chance to interject: Speaking of which, I later heard an engineer from the Electronic Technology Group say that in the end we were able to overcome electromagnetic interference because of your inspiration, Chang Gong. "because I?" ?Chang Haonan was a little surprised that the topic was suddenly brought to him. "Yes, an engineer named Guo from the 14th Institute told us that he was inspired by one of your papers and designed an anti-tow interference mode on the J-8C''s 1472 radar to reduce some of the radar refresh rate and detection. At the expense of distance, we could avoid the influence of deceptive interference, and then we fired two PL-11 rounds and knocked down the MiG-25. " ??Chen Jialiang gestured with his hands in mid-air, introducing the most exciting part of the entire battle to Chang Haonan and others. Later, together with the paratroopers of the Pakistan Air Force, we found the pilot and the wreckage of the plane near the shooting point. Zheng Liangqun, who had been robbed of the conversation for a long time, took advantage of every opportunity to answer the question: The most valuable pods have been secretly transported back to China and handed over to the military industry department for research. As for reverse imitation... it depends on them. Anyway, we really hope to have a similar equipment. ?After a lot of wonderful stories, Chang Haonan finally heard the information he wanted to know most This rather powerful jamming pod must have just begun to be studied. In other words, there is still room for him to play a role. So which unit is in charge of this matter now? ??If this thing is within the aviation industry, that would be the best, but if not, it may have to be contacted through Ding Gaoheng''s relationship. Of course its our Electronic Technology Group. ?At this moment, a young voice came from the side: ?Chang Haonan turned his head and saw a man wearing glasses, probably in his early thirties, and with hair that did not look like an engineer coming over. Guo Lin, from the 14th Institute of Electrical Engineering. After a brief self-introduction, the two shook hands. "I am very happy to see one of the founders of the volumetric Kalman filtering method here. The paper co-authored by you and Researcher Xu, Chang Gong, gave us a lot of inspiration. Our radar can overcome interference and seize the target this time. I also want to thank you. This is nothing, academic research should be exchanged. At this time, Chang Haonan was obviously not concerned about this matter: "I wonder if I can..." Before he could tell his purpose, Guo Lin, who had already guessed what he wanted to say, replied directly: Of course you can participate. In fact, even if we dont find a chance to chat in person today, we were planning to invite you two to join this project. After all, there should be no more authoritative person in the country in the field of control engineering theory. The two of us? ?Chang Haonan noticed that Guo Lin opposite him was looking behind him and subconsciously turned around. A woman about the same height as me was standing there with her arms folded. Researcher Xu? It was Xu Yang who had worked with Chang Haonan for a while when he was optimizing the wing design. Dr. Chang, long time no see. (End of this chapter) Chapter 235 Accidentally became an industry leader Chapter 235: Became an industry leader by accident Since that collaboration at the Institute of Computing Technology, although the two have exchanged letters and even co-published a top-level paper in the field of control, they have never met again. From what Guo Gong said, we should have another chance to cooperate? ?Chang Haonan lightly shook Xu Yang''s extended hand. Yes, Im looking forward to it. The latter raised his hand to straighten the messy hair around his ears, and nodded with a slight smile. In every sense, Xu Yang is undoubtedly a genius. In the past twenty years, she has never met a peer who can adapt to her in cooperation, and she often needs to interrupt. Only by waiting for the work at hand, or even assisting others, can progress be progressed normally. Even her supervisor when she was studying abroad at Berkeley often felt that she couldn''t keep up with her ideas after her second year of Ph.D. ?? Xu Yang doesn''t mind if he works harder and takes on a larger proportion of tasks, but it is very frustrating to have his thoughts frequently interrupted because others are lagging behind when he is concentrating on his work. So she gradually became accustomed to a simpler way of cooperation, that is, taking charge of the entire project herself, and then assigning small tasks to others that would not affect the integrity of her own work. This way of working actually requires subordinates rather than colleagues. Therefore, during the period after joining the Institute of Computing Technology, Xu Yang had almost no interaction with other researchers except for a few graduate students under his guidance. What deep cooperation. Until I met Chang Haonan. For the first time, she experienced what it was like to have someone who could keep up with or even be slightly ahead of her peers. In short, its cool. Very happy. When encountering a problem that is difficult to solve, there is actually another person who can communicate with me on the same frequency. So during this period, Xu Yang has really missed the days of working with Chang Haonan. And the latter will naturally not exclude cooperation with such a top-notch scholar in all aspects: Then I wish us a happy cooperation. With your help, I believe our research on the jamming pod will go very smoothly. ?Seeing the scene where the two people quickly reached a consensus, the happiest person was Guo Lin: How about I report to the superiors and submit a project application as soon as I return to Jinling this time and invite you two to join us? There was a hint of impatience in his tone, fearing that the two great gods would change their minds after they returned. "good." ?Chang Haonans answer was very brief. Okay, then Ill be waiting for your news. On the contrary, Xu Yang, who seems to be a little shy about strangers, gave more positive feedback. "But it''s a coincidence. The paper we wrote was probably seen by the 2nd Bureau of Mechanical and Electrical Engineering and you 14 at the same time as soon as it was sent out. Then it was applied to the Thunderbolt 11 missile and 1472 radar projects respectively, and finally they were used together. Installed on the J-8C. Chang Haonan looked at Guo Lin, who looked delighted, and casually found an excuse to continue the topic. However, this sentence surprised Xu Yang next to him: No, Dr. Chang, it was your suggestion to submit to IEEETransactionsonAutomaticControl. Why did you make it sound like you didnt know the status of this journal in the industry? ?The other partys reaction made Chang Haonan a little puzzled: Of course you know, you know, its a top journal in the industry, but there are always several top journals in the field of control. Will the research institutes of the Electronic Technology Group order it as soon as possible? In this era, there is no such thing as publishing a manuscript in advance on the Internet in advance. In particular, the domestic Internet construction has just begun to cover large and medium-sized cities, and the network hardware construction of many academic institutions has not even caught up. If you want to gain access to foreign countries, First-hand academic information often requires purchasing paper publications by mail. Even if we do not take into account the high price of foreign publications and cross-border postage, this process still takes a long time, which often makes it difficult to quickly follow the most cutting-edge international research progress. Unless it is through human express delivery or fax, this method cannot be used on a large number of journals in a wide-spread manner. "Well" After hearing Chang Haonan''s answer, Xu Yang put his forehead with one hand helplessly: It seems like you really dont know how big a stir this paper has made in the industry... Chang Haonan was really confused now. In his impression, although an IEEETransactionsonAutomaticControl article can indeed give the author some status in the control field, it does not seem to be enough for Xu Yang to perform like this. Upon seeing this, Guo Lin quickly took over the topic appropriatelyXu Yang is, after all, the other author of the paper. If she were to speak, it would inevitably sound a bit self-proclaimed. At this time, an outsider needs to appear: Chang Gong, the paper you two published is the first time that it has been published in a top journal in the industry by Chinese authors affiliated with Chinese scientific research institutions. It must be of extraordinary significance to those who control us in China. This is something Chang Haonan never thought about at all. Is that so ? He ??has not done much research on the development history of domestic control disciplines, and he does not know what level the current Chinese researchers are generally at. As a result, it accidentally created a domestic first. Since this is the case, it is not surprising that the industry attaches great importance to this paper, so that they use some cost-effective methods to ensure that they see it as soon as possible. ??Guo Lin nodded, with a little envy and admiration in his eyes: Not only that, the cover theme of the magazine in which the paper was published was called Bringing the Kalman Filter Method Back to Life. Is it even on the cover? As a scientific research dog for two lifetimes, Chang Haonan is very aware of the difficulty of getting a paper cover. Of course only refers to top journals. ?The covers of some water magazines can be published by paying money. What''s more, in order to make money, they will put one cover, two covers, and three on the same publication to get more fish. This is not included. "Yes, occupying the cover of top journals is a rare thing in China. The two factors are superimposed. This paper has actually been highly discussed in China and the Chinese academic circles in the United States since it was accepted. So just now As soon as I saw the magazine, someone brought back a few copies. But I remember that to be on the cover, we have to pay additional page fees, and we also have to do the cover style design ourselves? Chang Haonan still feels a little unreal. The IEEETransactionsonAutomaticControl, which he tried his best not to publish in his previous life, is now on the cover without any notice. Although the content of the paper did draw on the wisdom of some later generations, the core content still came from him. Of course I did these. Xu Yang lightly shrugged his shoulders and replied: "Originally I wanted to call the 601 office to find you, but they said you were on a business trip. I needed to go through the formal process and contact my work unit to inform you of the specific destination. They were pressing me very hard at the time, and I definitely didn''t have time to go through this process. So I dealt with it alone. You wouldnt blame me for taking matters into my own hands, would you? Of course not. Chang Haonan quickly shook his head: "Or rather I should thank you..." "Thank you... No need. Anyway, all the expenses have been reimbursed. I just ran a few errands." "So... Chang Gong, you didn''t care about the article at all after it was submitted, right?" ?Guo Lin asked incredulously. ??He felt that if he wrote such an awesome article, he would definitely want to pay attention to the reaction of the editorial department every day. Uhhow to say ?This question made Chang Haonan think about it for a moment: Actually, the initial research on this direction was just to solve the problem of the coupling of the J-8C leading edge slats and flaps. The paper was also proposed by researcher Xu for publication. I just added some content to it by the way..." Ah this? ??Guo Lin felt that the corners of his mouth were twitching uncontrollably. His worldview seemed to be crumbling. Thanks to the book friend [Old Bookworm Potato Knife] for the 5,000 starting coin reward~ (End of this chapter) Chapter 236 Nine-star general and father of aircraft carrier Chapter 236 The Nine-Star Warlord and the Father of the Aircraft Carrier ?Chang Haonan''s answer just now and Guo Lin''s subsequent reaction triggered good-natured laughter from everyone, including Xu Yang. ?However, the discussion quickly returned to the topic related to the jamming pod. Guo Gong, where is your research on that pod now? ?Chang Haonan asked a question that he and Xu Yang were both concerned about. It has just begun, and there is no progress yet. Even the restoration is only halfway done. ??Guo Lin also put on a relatively serious expression when he was talking about business: "Although the MiG-25 that was shot down had an average height and speed and was more than completely smashed, it happened to crash on a ridge in the Ladakh Mountains, causing the wreckage of the aircraft, and of course the pod, to be distributed separately. In the three valleys, the situation on the Pakistani side was more complicated, and we did not dare to mobilize too many unreliable troops to search the mountains, so it took a long time to find most of the key parts. " "At present, we can only analyze the situation reported by the combatants during the operation. Let''s not mention the function of radar reconnaissance. In the electronic interference part, it is certain that there is at least one relatively powerful velocity gate drag interference, and more parts need to be Waiting for the disassembly results to come out. I dont think this is the only function. Xu Yang lowered his head and thought for a moment, and then replied: "Although I don''t know much about military radars, current pulse Doppler radars should all have the ability to measure distance and speed at the same time. As long as the relationship between distance and speed integral is used, it can fight against separate speed drag interference. As for the two J-8Cs being bothered for so long. Chang Haonan, who has more than 20 years of experience than everyone present, knows more about this: "Tow interference is generally combined with false Doppler frequency shift interference and Doppler frequency shift flicker interference, which are frequency-shift interference functions that are specifically designed for PD radar coherent accumulation technology, so that the radar speed tracking wave gate is between the two interference frequencies. The real target speed and displacement cannot be stably captured, and the interference effect cannot be overcome by comparing the integral data alone. " But if so ?Chang Haonans explanation did not completely eliminate Xu Yangs doubts: "I''m afraid that the pod must be very large, and the power consumption must be quite alarming. Whether it is using a traveling wave tube phase-shifting amplifier or a CNC phase shifter to achieve carrier frequency shifting, it is inevitable that the harmonic level will If it is too high, the effective interference power will be reduced. In addition, miniaturization of these two things is currently relatively difficult. ?Guo Lin shook his head: It is indeed not small, but most of the space is used to accommodate a synthetic aperture radar antenna, and the space used for electronic jamming equipment is not large. At this time, Chang Haonan noticed that there were many people outside the conference room. It was obvious that the big boss who entered the room at the end was about to come forward, so he quickly made a brief summary: "Anyway, what Researcher Xu just said makes sense, so our core goal in studying this trophy should be to understand how it can effectively interfere with PD radar, and try to imitate and improve it. It is best to equip it. On our own aircraft, more than half of the 36kW power supply of the two J-8C engines is idle. In fact, Chang Haonan already had some guesses about this pod after hearing Guo Lin''s description. The incident of shooting down the MiG-25 was one of the butterfly effects brought about by his rebirth. There was no previous experience for reference, but the effect of this jamming pod sounded very close to that of the one often hung on the wingtips of the Su-27. Those two L005S active electronic countermeasures systems. L005S is quite compact and consumes little power, but it has always had good results even until the beginning of the 21st century. The key is that it does not use traditional traveling wave tube amplifiers or numerically controlled phase shifters, but uses digital The radio frequency memory (DRFM) implements direct digital synthesis (DDS) to complete digital frequency shifting. Yes, Big Brother was already able to produce components such as DRFM and FPGA in the mid-1980s. It was basically only behind the United States and did not rely on black magic to achieve electronic warfare capabilities. Whats more abstract is that when the Su-27s flight control was still using analog fly-by-wire, its supporting jammer had already been fully digitalized. Of course, it has been another 10 years since the L005S was finalized, and the United States is still the super devil in the field of semiconductors. There must be other black technologies in that pod, but the basic principles may not change much. Because in the previous life until Chang Haonan was reborn, the principle of deceiving and interfering with radar was still in this set of things. Its just that the level of algorithms and components has improved. ??It''s just that Chang Haonan can only think about these things in his mind at the moment. ??At this time in the timeline, he has never even seen the L005S pod on the Su-27 (the two aircraft at the air show did not have it), so it would be too fake to directly pick out other peoples principles... ?At this moment, a piece of exciting music suddenly played in the conference room. "Hours of Glory". It is often used as background music for various celebrations or ceremonies. ?Sure enough, a staff member soon reminded the attendees to return to their seats and the ceremony was about to begin. ??The people who still had unfinished thoughts had to temporarily separate. ?However, according to the agenda, the leaders speech and award ceremony will not be very long, and there will be a dinner afterwards, so there is still a chance. ?According to the previously assigned seats, Chang Haonan and Xu Yang were actually next to each other, and both were in very forward positions. ?But it makes sense to think about it. They are almost the only two people in the audience who are not members of the military, nor are they affiliated with state-owned enterprises such as the aviation industry or electronic technology group. In fact, that paper is quite influential in the control academic community around the world. ?Xu Yang, who was wearing high heels, followed Chang Haonan and whispered to him. "How to say?" The two of them found their seats and sat down while communicating in a voice that only the other party could hear. After the paper was published, my supervisor when I was studying in the United States contacted me directly and asked me if I was interested in teaching at Berkeley. It would be best if I could bring another author with me. ?Xu Yang''s words almost frightened Chang Haonan who had just sat down. For a moment, he even wondered if the other party was sent by someone to instigate rebellion. But this idea was quickly dismissed. Even if he wanted to instigate rebellion, it would be too stupid in this situation, and Xu Yang didn''t offer any very attractive bargaining chips. Not like. So you refused? Chang Haonan asked while maintaining a calm tone. As expected, Xu Yang nodded: Of course, otherwise I wouldnt have had the chance to come here. Originally, the conditions he offered were quite good, but after thinking about it, I still feel that I would rather work with you, Dr. Chang Obviously, there is something in this. ?But Chang Haonan didn''t have time to think about it carefully. Because all his attention was quickly attracted by the two people who had just walked in and sat in the middle of the rostrum. ?He knew both of them. Or to be precise, I have seen them all. in the photo- ?Todays battle is indeed huge! (End of this chapter) Chapter 237 First Class "Operation Bat Hunt" Commemoration Chapter 237 First Class Operation Bat Hunting Commemorative Medal Even though Mr. Wang and Mr. Liu were present, it was a celebration and commendation meeting after all, so the overall atmosphere was relatively relaxed. The first is, as usual, words of praise and encouragement. ??The two leaders are both people who have been on the battlefield. They also speak with a full military temperament, and their tone is sonorous and powerful, without any sloppiness. Since there was no live broadcast, and the attendees were all pure people who had been screened over and over again, people on and off the stage also showed their true feelings without hesitation. ?Especially Mr. Wang, who has gray hair but is still energetic. Although he has retired, on such a special occasion, it is most appropriate to invite him to come out and provide some encouragement to the younger generations. After all, he is an old man who is known as the "Nine-Star Warfighter" and has shot down and damaged 9 enemy planes in total. It can also be regarded as reflecting the inheritance of the People''s Air Force. "In sixty-seven years, that is, exactly thirty years ago, the J-6s of the 70th Regiment of the 24th Air Division shot down an F104G fighter jet off the coast of Chongwu. Since that time, our air force, including the naval aviation of course, has had 30 We havent achieved any results in air combat in years. Mr. Wang behind the podium put down the speech he had prepared, looked at the packed venue in front of him, and began to improvise: "A few years ago, before I retired, many people questioned whether our Chinese pilots had forgotten how to fight? Especially after 1991, such voices became more and more frequent, even Some of our own people have gradually come to think this way. In the past, this was an unanswerable question because we couldnt convince others with words alone. But now, our heroic comrades and commanders have proven that this idea is wrong and absurd! Our Air Force is still a team that rejoices when it hears a battle, is brave and tenacious, and will win if it dares to fight! "Only a year ago, when we faced the provocative F14s and F18s, we could only take off hundreds of J-6s to deal with it with sheer numerical superiority. But the Air Force is a high-tech branch, and courage alone is not enough. For a country the size of China, it is not enough to just buy planes from abroad. "Fortunately, in the past six months or so, comrades from the military industry system have brought many surprises, especially last year''s Xiangzhou Air Show. I went there on the first day and saw the flight performance of our J-8C fighter jets after the opening ceremony. It was very exciting. Wonderful." "At that time, I told Comrade Lin Hu, who was traveling with me, that if I were 30 years younger, I would like to fly on it myself. He replied that it was a pity that this kind of aircraft did not have a two-seater model, otherwise I could try it now. " Chang Haonan off the court smiled knowingly when he heard this. Mr. Lin, who is not present today, is 70 years old this year. If there are no big changes in the timeline, he will really have the opportunity to fly a Su-30 to perform some stunts at the Moscow Air Show in a few months. . ?But thats all for later. There is some room for adventure in two-seat aircraft with the help of an instructor. The air forces of many countries even have special open day activities, and two-seat aircraft take some public figures to experience flying for publicity, but single-seat aircraft only have one pilot. If something goes wrong, it is completely irreversible, so the control of flying qualifications will be very strict. No matter what your status is, if you do not meet the requirements, you will not be allowed to fly. After praising the performance of the J-8C, Mr. Wang turned the topic to the pilot: "Of course, the plane is good on the one hand, but our comrade pilots are also good. Some technical essentials are well mastered in training, but when it comes to facing enemy planes, they all forget it as soon as their minds get hot. And this time I have read the mission briefing. It is not easy to stay calm and not be impulsive or make mistakes for the first time. In this regard, you are much better than me. " "The first victory our brigade achieved that year was a Meteor F.MK8 shot down by Comrade Liu Delin. It was an old model from the end of World War II. At that time, we were flying a MiG-15, which was the most advanced fighter jet in the world. Taking advantage of the fact that four of them hit one, the enemy knew they couldn''t beat it, so they just ran away and didn''t fight back at all. In this case, our four planes shot down all the shells, and we were lucky enough to shoot down the enemy plane. " When Wang Lao said this, he laughed: "When I first saw the shadow of the enemy plane, I was thinking about pulling the trigger and firing. I forgot everything I learned. I didn''t even think of using the halo sight. When I reacted, I realized that all the shells were empty. But that was the first time. Gradually, everyone gained experience and became more proficient in their skills. Later, some of the best were even able to hit targets that could not even be tracked by the sights while flying diagonally at supersonic speeds. "In today''s air combat, there are fewer opportunities to use cannons. They all use missiles and beyond visual range attacks. Frankly speaking, our aviation force has little experience in this area. If I remember correctly, until this year At the beginning of the year, the total number of pilots in the entire army who have fired medium-range air-to-air bombs has just exceeded double digits. Therefore, the two pilots who participated in the battle this time, your experience is very valuable. I hope you can summarize some methods. Promote the essentials of beyond-visual-range air combat throughout the entire army! After the leaders speech, the awarding ceremony was naturally held. Zheng Liangqun and Chen Jialiang, who participated directly in the battle, as well as the team leader who took overall command, undoubtedly received first-class merit. Other commanders and combatants who participated in the bat hunting operation also received second- and third-class merit awards respectively. Originally, according to Chang Haonan''s estimation, the ceremony should be almost over here. Because first, second and third class merit are internal honors of the military system, people like them who do not wear military uniforms cannot get them even if they have extraordinary achievements. As for the rewards from their respective units or personnel departments, they obviously have nothing to do with todays theme. However, after Zheng Liangqun and others received the medals and returned to their seats, Mr. Wang picked up another red-covered document, and then turned his eyes to the other side of the venue: The following commemorative medals will be awarded to local comrades who have made outstanding contributions in this bat hunting operation! First of all, the list of people who have won the third-class Bat Hunting Operation commemorative medals will be announced! Hearing this sentence, Chang Haonan was briefly surprised, and a glimmer of light flashed in his eyes. His heart was moved. ??Which man didnt have the dream of making meritorious deeds and receiving awards when he was young? Although strictly speaking, medals, medals and commemorative medals belong to three things. And in the vast majority of cases, medals > medals >> commemorative medals. ?The first two must be rewards for some kind of meritorious service, while the conditions for issuing commemorative medals are often much looser, somewhat similar to participation awards. But everything is special. The participation award also depends on what you participate in. ?For example, the Bat Hunting Operation medals this time are specially designed for special purposes. There is no shop like this in this village. The gold content is obviously much higher. ??And looking at this situation, a commemorative medal is actually divided into first, second and third grades. It must be with the intention of rewarding, but because there is no way to directly issue military medals to local personnel, so I have to take advantage of such a loophole... In short, there are many people who have received third-class medals, such as Zhong Shihong from Factory 410, Lin Shikuan from Institute 601, and even Xu Yang. ?Chang Haonan didn''t hear his name. ?This made him feel relieved After all, if you get a third-class medal, it really means thank you for participating. Chang Haonan had never even thought about not being able to get through to the third class. Just kidding, I still have some confidence. The number of people who received second-class commemorative medals was much smaller, and they were all key personnel directly involved in the August 3rd Project. After these people received the awards and returned to their seats, Mr. Wang finally picked up the third document on the podium: The people who have received the first-class Operation Bat Hunting medal are Although he had already guessed in his mind, Chang Haonan was still a little nervous in anticipation. Aviation Industry 601 Research Institute, Yang Fenghata. As the chief designer of the entire August 3rd Project, he deserves the title. Electronic Technology Group 14 Research Institute, Guo Lin. For some people who dont understand the situation, this name seems a bit unfamiliar, but in fact it was him who judged the type of interference on the two J-8Cs in the flash of lightning, and was able to successfully shoot down the one that was about to escape. MiG-25 in Pakistani airspace. Aviation Industry 606 Research Institute, Yan Zhongcheng. Its not surprising either. And the list should look like it is sorted by the number of strokes in the surname. And Chang Haonan, School of Aeronautical Science and Engineering, Beijing University of Aeronautics and Astronautics! (End of this chapter) Chapter 238 The Navy also wants new equipment Chapter 238 The navy also wants new equipment Lao Wang finished reading and closed the document in his hand. Since people from the aviation industry system were not the only ones attending the celebration today, many people were a little surprised by the name just like Guo Lin. ?However, when Chang Haonan''s name was said, several areas of the venue almost immediately burst into warm applause. ??Of course they are comrades from the aviation industry, electronic technology and test pilot units. ?No one knows better than them how much contribution Chang Haonan made in the process of finalizing the design of the J-8C and finally entering service. So they also gave the most powerful support at this time. When the dust settled, Chang Haonan himself breathed a sigh of relief. Satisfied! Congratulations, Dr. Chang. Xu Yang, who was next to him, applauded and congratulated Chang Haonan in his ear as he was about to stand up: Looking at everyones reaction, it should be considered a success. The latter was also immersed in the excitement of receiving such a level badge for the first time in his life. He was not pretentious. He nodded slightly and thanked the other party for the congratulations. Then he left his seat and followed Yan Zhongcheng to the stage. . For the first two medals, the staff will directly deliver a wooden box with a lid to the recipient, and then open the box and take a group photo. After all, there are so many people, so if we come one by one, we probably wont need to prepare a dinner party. This time, several leaders who attended the celebration party personally presented awards to the four people. ?Chang Haonan watched in a daze as Mr. Wang took out the golden medal from the packaging box. It is the style of lapel (hanging on the chest). He breathed a further sigh of relief. Although in terms of shape, large ribbons and collar ribbons are of a higher level than collar ribbons, there is a tendency for collar ribbons to become too common in China. Secondly, the ribbons are too long and are not stable to wear, which leads to the final wearing failure. The effect is a bit like an athlete''s medal... In short, judging from Chang Haonan''s superficial aesthetics, the scarf is better. Mr. Wang stepped forward and fixed the pin on the back of the medal to his left chest, and then the two shook hands. Comrade Xiao Chang, I heard about you from Director Ding. You are young and promising! I would also like to thank the organization for allowing me to put my abilities on a platform and for giving me full trust. Even though his brain function has not fully recovered, Chang Haonan can still respond to this standard answer. "The future of the People''s Air Force needs young talents like you. To be honest, the conditions we can provide now are not enough..." The award ceremony was not a good place to chat for a long time, so Mr. Wang just gave a few words of encouragement. After returning to his seat, Chang Haonan still couldn''t help but look down at the golden medal pinned to his chest several times. The chapter body uses design elements such as five-pointed stars, swords, flags, rays of light and the Great Wall. In the center of the circular chapter surface, there is a MiG-25 aircraft pattern broken into two parts. Clear intention and direct expression. Although the design is nothing new, it doesnt matter. Earth to the extreme and natural tide. Besides, the value of this thing lies in the meaning behind it. In short, its a pleasure.??? After all three levels of commemorative medals have been awarded, the first half of the entire event, that is, the commendation ceremony, has ended. The dinner that follows will be much more flexible and free in form. ?Of course, the banquet will definitely not be held in this large conference room. So there is about half an hour left for everyone to make their own arrangements and change places. Mr. Wang has retired after all, and he has no airs. Along the way, he was asking about the light and heavy third-generation fighter projects. "If there are no surprises, the first prototype of Project 10 will probably complete its first flight between the second half of this year and the beginning of next year. However, because the turbojet 15 has not been developed and the turbofan 10 has not made much progress, it will only be done for the time being. It can use Russian-made aviation power. Of course, we have considered leaving a margin when designing the inlet and flight engine matching. In the future, we can replace it with domestic power of similar size. " Xue Chishou, chief engineer of the 611 Institute, reported from the side. The results achieved by the J-8C are both pressure and motivation for him. In fact, since about 1995, Project No. 10 has become the most important project of the Air Force. It can obtain more resources than in the past, but it also means that they must not let go of the chain. Fortunately, some subsystems planned to be installed on the J-10, such as radar and data bus, have been verified on the improved J-8C, which can be regarded as a reduction for Project 10, which was originally expected to use more than 60% of the new technology. risk. Mr. Wang nodded with satisfaction, then turned to the other side: What about Project 11? The answer this time was He Ming, who had taken Chang Haonan to visit the final assembly workshop of Factory 112 before: "According to the plan, the first two aircraft to be assembled by Factory 112 will be rolled off the production line by the end of this year at the latest. Many problems in the manufacturing process, especially those in the digital drawing and production process, have been solved before, so in this regard The efficiency is faster than initially expected, but in terms of production and manufacturing, the comrades from the 601 Institute should want to make some modifications to the aircraft with the engineers from Sukhoi, and Mr. Sun knows more about this." When He Ming said this, Chang Haonan followed everyone''s gaze and discovered Sun Cong, who was not too inconspicuous among the crowd. Oh, thats right, we plan to improve a process method and a design issue of the Su-27S aircraft in the process of opening up the parts production line. "The first thing is about the large-sized titanium alloy load-bearing partition frame of the aircraft. Gongqingcheng has always used the method of manufacturing two small-sized parts first and then welding them. However, the yield rate of this welding technology is currently very low. It is low, and more importantly, it will bring a lot of unnecessary dead weight, so we hope to change it to integrated molding. "In addition, in order to compromise with the original N001 radar, the Su-27 has a weak performance area in the transonic speed section. Originally, the width of this section was actually very narrow and had little impact, but the original flight control restricted the entire speed section across the board. The maximum angle of attack and available overload, we are prepared to achieve precise control of the available angle of attack through digital fly-by-wire and centralized flight computers, truly unleashing the maximum potential of the aircraft design, without causing the aircraft and engine to exceed the safety envelope, and It can maximize the maneuverability of the aircraft..." ??Although Sun Cong was talking about the J-11s problems, everyones attitude towards it was still positive The problem wont exist just because you dont talk about it, and now at least someone is starting to think of a solution. Especially the few comrades in the Air Force pilots who were following behind. They come from Mr. Wangs old unit, the 3rd Air Force Division, and are also the first unit in the army to switch to Su-27SK. They have a deep understanding of the problems mentioned by Sun Cong. It''s just that the Chinese army is still at the stage of being useful, so it is mainly thinking about how to overcome difficulties. ?At this moment, another cheerful voice sounded from around the crowd: Comrades in the military-industrial system should not favor one over the other. When will we consider purchasing some new equipment for the navy? Mr. Liu? As the "Father of Aircraft Carriers" of China, Mr. Liu''s contribution to naval equipment construction and his affection for the navy are beyond doubt. ?Now I see my old comrade-in-arms happily looking forward to the future with his subordinates. If I say Im not jealous, that would be a lie. (End of this chapter) Chapter 239 A new frigate with full combustion power (for the monthly ticket holder last month) Chapter 239: New frigate with full combustion power (an update for the magic flying for last months monthly ticket financier, please vote) Hey, Lao Liu, we are all comrades from the aviation industry system here. If you want to poach someone, you cant do it in front of me, right? There is a ten-year age difference between the two seniors. Strictly speaking, they are not the same age. However, they have worked together for a while, and both have or are about to leave their positions. They are basically using their remaining energy, so this joke can still be made. Hey, if you say this, the situation is too small, isnt it? Mr. Liu had obviously already prepared a countermeasure and replied almost without thinking: Look, since our navy and air force are all one family, by the same token, even if the aviation industry and the shipbuilding industry are not related by blood, they are at least cousins, and they should help each other out. Mr. Wang next to him didnt have any objections to this at first. After hearing this sentence, he was immediately amused: Its not impossible to help, but what they can probably do is give priority to the delivery of naval aviation orders. This doesnt matter. Anyway, HNA cant buy many aircraft a year... Before there were aircraft carriers, the status of shore-based naval aviation was indeed a bit useless. Although the military''s life is gradually no longer as tight as in the past, one or two new ships must be purchased every year, so it can be allocated to The funds used by the aviation force are not enough. The two new aircraft previously given to the 25th Regiment of the 9th Division can be said to be money squeezed out of the teeth. Chang Haonan noticed that slightly behind, Zheng Liangqun patted his colleague in navy uniform with a compassionate look on his face. ?Lies will never hurt, the truth is the sharpest knife. Even Mr. Liu was speechless for a moment. ?However, he was not here to ask for aircraft from the naval aviation today, so he simply waved his hand and ended the topic: "We can talk about the delivery of the aircraft slowly, but when I went to the 701 Institute for inspection some time ago, I heard from their chief engineer that the power system of the navy''s new generation frigate is entrusted to the comrades of the Aviation Industry Group. " Hearing this, Chang Haonan finally understood. At the Xiangzhou Air Show before, he had accidentally met Lin Qing, deputy chief engineer of the 701 Research Institute of Shipbuilding Industry. The two had discussed the feasibility of choosing a gas turbine power solution on the new frigate, but because he was later An urgent call was made to Nanzheng to solve the icing problem on the Y-8''s wings, so we did not follow up on the matter. ?Now it seems that Chief Engineer Lin must have communicated with the 606 Research Institute and the 410 Factory in Shengjing after he returned. After all, this kind of matter is related to the fundamental design route of the navy''s main battle equipment in the next twenty years or even longer. It is impossible for people to make a decision directly based on a conversation with Chang Haonan at a dinner. Is there such a thing? Lao Wang is obviously very interested in this matter. Yan Zhongcheng, who is responsible for the general design of the turbojet 14, is naturally also the chief designer of subsequent aeroderivative models. He nodded and replied: "That''s right. A few years ago, Deputy Chief Engineer Lin of the 701 Research Institute made a special business trip to Shengjing for this matter. He saw our design of using a turbojet 14-core aircraft for aeroderivative combustion, and finally decided to build a new aircraft. The power solution using an all-gas turbine should now have been selected and entered into the overall design stage. "Gas turbines are a good thing. They have strong power, small size, low noise, and fast response. When I was young, those destroyers using steam turbines took several hours to start from cold engine. But for the new Type 052 destroyer, the gas turbine only takes It can be started in about 10 minutes and is much easier to maintain. Liu, who has a background in the navy, is naturally knowledgeable about this. He has visited many naval ships in Western countries and is very clear about the gap between domestic and foreign countries in this regard. The photo of Mr. Liu standing on the USS Raider (Forrest-class CV61, not the CV4 of World War II) looking at the SH3 Sea King anti-submarine helicopter was spread almost all over the Internet in his previous life, and it also became the first sign that China must develop an aircraft carrier. One of the driving forces. He then gave reassurance to comrades in the aviation industry system: "Now the United States has banned the sale of the LM2500 to us, but gas turbines are definitely the future development direction. We still have to continue to work on it. Your turbojet 14 aeroderivative combustion has a bright future. The navy must strongly support it and will never do it again. Repeat the same mistake as when the Turbojet 8 aircraft was modified and burned! Well...this is a good thing. Mr. Wang was also in a good mood after hearing Yan Zhongchengs answer: "In the past, our financial resources were not strong, and the various scientific research systems were always dispersed and worked independently. The separation between each other was too serious, and a lot of energy was wasted. If we could all communicate with each other like now, the efficiency would definitely be better. It can be lifted a lot. Obviously, the old man is also deeply aware of this situation. Speaking of this matter, it has something to do with our Comrade Chang Haonan. Yan Zhongcheng also mentioned Chang Haonans name in front of the two leaders very appropriately. After all, the latter is equivalent to raising a hand when the entire Kunlun project is in the most critical situation. Moreover, he is very close to Ding Gaoheng. Now that he has the opportunity, he will naturally return the favor: "Comrade Lin Qing told me that the reason why he thought of our 606 Institute so quickly was because he saw the J-8C and Turbojet 14 exhibited at the Xiangzhou Air Show, and then went to see Comrade Xiao Chang at the dinner on the opening day. , only then did we confirm the existence and feasibility of the turbojet 14 aviation modification and combustion plan. "oh?" Lao Liu and Mr. Wang focused their eyes on Chang Haonan at the same time. Especially Mr. Liu, after looking up and down, he directly praised: Young comrades have an overall view of the big picture. They look far ahead and dont just look at the one-third of an acre of land in front of them. This is something that many old comrades who have walked out of a hail of bullets cannot do. ??Although Mr. Liu and Ding Gaoheng have the same military rank, their positions are a whole level higher. Such an evaluation is naturally not unusual. "They are all contributing to the country. I also happened to meet Comrade Lin Qing at the air show. Our country is too big, the distance between the research institutes is relatively long, and the current information transmission efficiency is not high enough, so it is inevitable that there will be There are situations where there is poor communication or even working behind closed doors. I believe that with the development and progress of information technology, this situation will become less and less. " Based on Chang Haonan''s experience before his rebirth, he didn''t know much about a person of Mr. Liu''s level. It was the first time they met after his rebirth, and it was almost impossible to find out the other person''s pulse, so he didn''t do what he did in Ding Gaoheng a few days ago. Unlike Song Jian''s clear position, he used a relatively euphemistic term to attribute the main problem to the technical level. In fact, from a certain perspective, this is also true. Before entering the Internet era, unless there was an institutionalized and systematic information sharing platform, we could only rely on telephone, telegraph and word of mouth, even if we wanted to engage in cross-system cooperation. It''s often out of motivation. ?Given the status of the two seniors, no matter how much they admire Chang Haonan, they can only say this. Too much praise for a young man from their mouths can sometimes become a fetter. So the conversation quickly moved in other directions. After chatting for a few more minutes, Mr. Liu and Mr. Wang temporarily left the three gates and did not continue to the banquet venue. The atmosphere among everyone suddenly became much more relaxed. (End of this chapter) Chapter 240 Aircraft diversion is also difficult (Part 1) Chapter 240: Aircraft modification is also difficult (Part 1) Not all the participants were qualified to follow the two leaders all the way, so when Chang Haonan and the others were led to the banquet hall by the staff, the vast majority of people had been waiting here for a while. ??Several comrades belonging to the navy and air force quickly found their comrades, leaving only the scientific research people on Chang Haonan''s side gathered together in twos and threes. At this time, there was still some time before the banquet officially started, so everyone was not in a hurry to take a seat. Speaking of which, Mr. Yan, did 701 mention other design elements of the new frigate? Chang Haonan is quite interested in this model, which he already knows will be typed as 054 and become the new generation of main battleship of the People''s Navy. The main reason is that it will be very different from the 054 and 054A in the previous life. Well, Deputy Chief Engineer Lin did say that, but I dont know much about ship design, so I only heard a general outline except for the parts related to the power system. Yan Zhongcheng stretched out his hand to straighten his hair, and showed a slightly stiff smile: "The plan of Institute 701 is to have a displacement of 4,500 tons and a long forecastle deck. The first three ships will directly use the 6-seat 8-unit 3K95 short-range air defense system imported from the Antai Scientific Research and Production Complex. It is said that it is being developed with the Army. The purchased 9K331 field air defense system has the same origin, which will reduce the pressure on ammunition production units after the introduction of production lines or imitation in the future. Obviously, after seeing the true hero of the short-range air defense system, the Doyle M1, both the army and the navy no longer look down on the Red Flag 7, which is copied from the Sea Sidewinder. The corresponding localization process will obviously start earlier than in previous generations. This is of course a good thing. At least the big brother of the army, which is under heavy air defense pressure, does not need to wait until 2013 to finally start equipping the Hongqi 17. ?Of course, whether Big Brother has enough funds to buy it is another matter. The navy can also obtain the derived Haihongqi 17, which provides a solid final barrier for various ships and builds an ecological niche similar to the vertical ESSM in advance. ??Its just that the curious revolver hanger on the 3K95 still needs to be removed and replaced with the same 8-gun launch box of the same model as the Land-based Doyle. ?However, Chang Haonan was still a little surprised by this uncoordinated configuration: With 48 rounds of ammunition, thats so much? ??Although the performance of the 3K95 system is much better than the Sea Sidewinder/Haihongqi 7 installed on the 052 destroyer, the 9M331 missile it is adapted to is a short-range point air defense system with a range and firing height of only 12km and 6km respectively. ?Different from the more regional air defense missiles that are better, this last shield, which can only protect itself but cannot hold an umbrella, seems to have no need to pack in as many as 48 rounds. ?What kind of scene is this? Can the terminal interceptor fire so many rounds? It is impossible to send just one frigate to such a big scene. ?Of course, if the British saw this configuration, they would definitely cry with envy. ??As long as there are several sets of similar things, it will not be possible for people to sink and damage so many ships on the Falklands. According to Deputy Chief Engineer Lin, this new model of ship has reserved room for modifications for future upgrades. For example, there is enough space on the front deck and inside the hull to accommodate 3S90M with a depth of no more than 5800 mm or similar performance. The vertical launch system is equipped with a total of 6 channels of anti-aircraft missile illuminators on the ship, so several more launch devices were designed. At this point, Yan Zhongcheng paused, gently touched his temples, and after thinking for a moment, he continued: "Although this is what he said publicly, I personally feel that these explanations are far-fetched. Our aviation system sometimes does things like leaving space margins, but if that is the case, there is no need to fill all these places. " "The real reason may be that the frigate they built is indeed a bit big. Its full load displacement and hull size are similar to the 052 destroyer that just entered service. If there is no way to increase the utilization rate of the hull, it proves that it is necessary to design such a The large hull space may cause some resistance. ?After hearing this speculation, Chang Haonan immediately remembered a program he had seen on TV in his previous life. A well-known military commentator said that in the 1980s and 1990s, there was indeed a force that purposefully obstructed the development of naval equipment in the name of excessive investment and impacting the economy. Now it seems that it is not just a matter of speculation. . In today''s timeline, due to the smooth finalization of the turbojet 14, Shipbuilding Industry Group, which is more confident in marine power, is also more radical in the design of new frigates. According to Yan Zhongcheng''s description, it should be a relatively A model with better foundation and greater potential than the previous 054/054A. Of course the resistance will be greater. After all, in the eyes of some people right now, your Chinese navy is actually preparing to equip a model with performance and size that is better than similar ships of the US military in one step. Even if it is just a less eye-catching frigate, it is a "treason" and transgression. Behavior. "Hmm... As you said, it is indeed possible. Fortunately, the two major components of power and ship power should be able to use domestically produced subsystems, so that the actual cost can be reduced a lot, and the opposition will be weaker. " Yan Zhongcheng glanced at Chang Haonan in surprise: "When Deputy General Lin talked about this matter with me, he said almost exactly the same thing as you. But what he meant was to allocate part of the foreign exchange quota that was originally expected to import key parts of diesel engines to enhance the anti-submarine system, otherwise it would be a waste of full-fuel power. High speed and quietness. Yes, it seems that he is indeed going to benchmark and surpass Perry in all aspects. After briefly learning some information about the new frigate, Chang Haonan brought the topic back to Yan Zhongchengs old profession: "The 701 Institute has such a bold idea and wants a little bit of every function. The power requirements for us are quite high." "It is indeed not low, but according to Xiao Chang''s previous communication with Shipbuilding Industry, we have already come up with a Remove the exhaust nozzle, use the dual-rotor structure as the gas generator of the gas turbine, and then equip them with a simplified design of the power turbine for technical verification. Factory 410 will start producing prototypes soon, no surprises If it can be delivered in mid-June of this year, let them start the ground test first, which will also increase their confidence in us. " Yan Zhongcheng nodded, then raised his hand to check the time: Lets go, find our place first, and then we can chat slowly after we sit down. Naturally, the formal banquet at Sanzuomen cannot be in the form of a buffet like the previous ones that Chang Haonan has attended. They are all served at separate tables and according to the menu. High-end is indeed higher-end, but it is not. Its too convenient to talk about things. Of course, the original intention of holding a celebration banquet is not just to let you talk about things... Chang Haonan and Yan Zhongcheng are still old acquaintances in the aviation industry. ?In addition, there is Du Miao Xu Yang from the Institute of Computing Technology. A group of people sat down according to the name tags placed on the table. Mr. Yan, now that the turbojet 14 has been finalized, do you have any ideas about taking over the Taihang project next? The person speaking was Luo Yang, who is currently in charge of the overall project No. 11. This person''s name is naturally very familiar to the reborn Chang Haonan. In the last life, after the ship successfully completed China''s first aircraft carrier-based aircraft landing mission and returned to port, Luo Yang, the commander-in-chief of the J-15 development site, died in the line of duty due to sudden acute myocardial infarction and sudden cardiac death. ?Of course, in 1997, he is still at his most youthful and powerful: "According to the agreement, Project 11 does not include the matching AL31F engine. We are thinking that since this aircraft will become our own J-11 in the future, it will not be a problem to import aviation engines from the Russians, including I think the situation on Project 10 should be similar. It would be best to switch to domestic power at the same time as the J-8C, so that we can make some targeted improvements to the aircraft." For Luo Yang, who is responsible for the overall project, it is of course best to complete these things in one step to save having to do it twice in the future, so he is very concerned about the progress of the domestically produced third-generation turbofan 10. ?But Yan Zhongcheng waved his hand: I probably wont be directly involved in the Taihang project. Now that Im getting older and my old injuries have recurred, my body is really struggling. He was seriously injured while doing engine testing before. He didnt feel it when he was young, but as he got older, some stubborn diseases gradually appeared, especially in autumn and winter: I plan to continue to engage in aviation-to-gas conversion projects in the future, and it will be good to use some of the remaining heat. Compared with the Turbofan 10, which almost completely restarts the stove (in fact, it has not yet been determined where the stove will be and what kind of stove is needed), the work intensity of the aeroderivative fuel project is much lower, and in fact it is not It is closer to the research direction that Yan Zhongcheng was better at in the past. ?? Luo Yang and Sun Cong both showed a somewhat pity expression, but when they saw Chang Haonan sitting next to them, they breathed a sigh of relief. ?Even if they are not responsible for aviation power, they still know a lot about the role this young man played in the shaping process of the Kunlun engine. ?? And Project 11 has an inconspicuous advantage. The Su-27 aircraft has a very good air inlet foundation, and the aircraft itself is large, so there is quite a lot of room for engine replacement. ?In addition, twin-engine aircraft inherently have a higher safety margin. In short, as long as the final product is not too bizarre, they can try it first. If it doesn''t work, they can even consider installing an AL31F and a turbofan 10 at the same time, so that even if there is a small problem with the latter, it will not cause any problems. Too serious consequences... Speaking of aeroderivative gas engines, Mr. Liu happened to mention it just now. I wonder how the modification progress of the turbojet 14-core engine is going? ? Sun Cong did not continue to dwell on the topic of turbofan 10, but took advantage of the situation and asked about gas turbines. We have developed an initial prototype for testing on the 701 Yan Zhongcheng had no choice but to repeat what he just said before continuing to add: Our final plan is to remove the original low-pressure components, redesign a low-pressure compressor and low-pressure turbine, and then directly drive the load. This can reduce the size of the gas engine and improve fuel economy. For ships powered by full combustion, It is said to be very useful. However, it will take some time to make this final version of the design. We have found several candidate solutions through preliminary numerical calculations, and then we will optimize them and compare their performance. " ? Xu Yang, who was sitting next to Chang Haonan, had not spoken since he saw Chang Haonan and others entering the banquet hall. He just listened quietly to the conversations of others. ??Although she usually participates in similar activities within the Chinese Academy of Sciences, she is used to being alone and not actively participating in topics. But today, especially when Chang Haonan, whom he regarded as a valuable partner, also participated in discussions from time to time, Xu Yang suddenly felt that it was not good for him to stay outside the topic. By coincidence, I just talked about numerical calculations. is the direction in which she is good at. (End of this chapter) Chapter 241 Aircraft diversion is also difficult (Part 2) Chapter 241: Aircraft modification is also difficult (Part 2) In terms of numerical calculations, if we need assistance from our Computing Technology Research Institute, we can also provide some supercomputing resources. Xu Yangs voice is unfamiliar to everyone except Chang Haonan. ?So Yan Zhongcheng looked at the opposite side and was stunned for a moment, and then replied: It would be great to have supercomputing resources, but the key factor affecting our progress is not the amount of calculation, but the limitations of software functions and algorithms. ?This time Xu Yang really became interested: "How to say?" Although the core parts of aeroderivative gas turbines are readily available, marine gas turbines and aircraft engines are still very different in terms of use environment, performance trade-offs, cost control, etc., so it is not enough to copy them completely. Because everyone here is his own, Yan Zhongcheng answered quite completely: For example, warships will have strict requirements on noise and vibration, especially if anti-submarine is the main mission goal, it will be even more stringent, while aviation engines have relatively small restrictions in this regard. Another example is that warships may sail in polar cold waters for a long time, and the gas turbine air inlet must overcome the icing environment. However, because jet aircraft are fast enough, there is almost no need to consider this problem. "This part of the work also involves more than a dozen multi-physics coupling effects such as acoustic vibration, heat, and thermoacoustics. If we want to achieve accurate calculations through current simulation modeling software... on the one hand, it will be very difficult, and on the other hand, considering the current The computing speed of our countrys supercomputer may take longer than building a few prototypes according to the old method. "And this is only a problem faced in the design stage itself. Good designers need to consider the convenience and economy of subsequent production, maintenance, and repair work during the design process. Because gas turbines are not sensitive to their own weight but are sensitive to life and cost. , so Liming Factory plans to use 1Cr16Ni2MoN martensitic stainless steel to produce blades through hot forging. When designing, we cannot only focus on performance like aviation engines do, but also consider the adaptability of blade size and shape to the process, otherwise it will be Theres a problem with the manufacturing plant. During the hot forging process, the interaction between material deformation, heat transfer and structural evolution greatly limits the application of the finite element method in the hot forging process that needs to fully consider the influence of microstructure. It is also a complex multi-physics field. The comprehensive process Yan Zhongcheng is worthy of being one of the early explorers in the field of computer simulation in China. Although he has been left behind by the times because he has not been exposed to the world''s top experience for a long time, he can still organize the work in a clear manner when he really wants to do it. The idea is clear. ?This long paragraph first stunned Xu Yang, and then quickly inspired her fighting spirit. Providing help but not being asked for it was definitely the first time for Xu Yang that a big girl got on the sedan chair. Although current software and algorithms do not support the simulation of such complex multi-physics fields, there are still many methods that can overcome this problem to a certain extent She thought she could attract the curiosity of others, especially Chang Haonan, by raising this topic. But everyone seemed to have a mediocre response to this, and the main character lowered his head and fiddled with his chopsticks in a daze. In the end, it was Yan Zhongcheng who took over the topic so that there was no silence: I know how to split these problems into ordinary single-field or dual-physics couplings to solve, but this requires a lot of work to model and write codes, and the hard requirements for calculations are not that high. " "this" ? Xu Yang was a little surprised that the man in front of him who looked to be in his sixties could actually have this ability. She is actually a very pure person, so she immediately respected Yan Zhongcheng: Do you also do research on multiphysics modeling? Its hard to talk about any research. These technologies didnt exist when I was studying in the UK, so I didnt learn them. Yan Zhongcheng said this and looked next to Xu Yang: "Actually, this also requires the experience and complete notes left by Comrade Chang Haonan in the previous design improvement work on the turbojet 14. During this period, I took advantage of my position and often took them to read and think about, that is, Gradually I understood something further. Dr. Chang? ?This was somewhat beyond Xu Yangs expectation. She is of course aware of Chang Haonan''s level, but it is one thing to be capable, and it is another thing to be able to teach or inspire others. In fact, the more talented a person is, the less good he is at this aspect. Similar to asking Jordan to be a coach You just need to take off and wait for your opponent to fall before shooting. Chang Haonan, who was wandering in his mind, suddenly heard someone calling his name, and subconsciously raised his head: "What''s wrong?" I wonder, Dr. Chang, if you have any specific ideas about this type of multi-physics simulation modeling calculations? ?Although this occasion is not academic enough, Xu Yang still can''t restrain his curiosity and wants to hear the other party''s thoughts. On the one hand, it is to communicate with each other, and on the other hand, I also want to see who of the two is better at this aspect. However, Chang Haonan shook his head directly: I dont have any specific ideas, because the current tools actually only support the simulation of two-dimensional fields. No matter how sophisticated the method is to split the specific problem, many variables will be ignored, and the accuracy of the results can be imagined. There are still many problems to follow. A lot of adjustments need to be made based on experimental data and experience. ?When he first heard this answer, Xu Yang felt a little disappointed for a moment. But her intuition told her that Chang Haonan probably hadn''t finished speaking yet. Sure enough, after a pause, the latter continued; For example, the classic phenomenological model that expresses flow stress through hyperbolas, and the high-temperature flow stress model that expresses material parameters as polynomials are purely mathematical models that do not consider the microscopic mechanism in the deformation process of metal materials. The influence of macroscopic deformation parameters such as deformation temperature, strain rate and strain amount on flow stress is known. Therefore, for each material, even if only one of the elemental components changes, it must be started all over again. " What I was thinking about was whether we could find a way, at least from a physical perspective, to describe the thermal deformation behavior of the same type of material and, further, develop a new tool, I mean a software, to do that. Three-dimensional finite element numerical simulation, for example, establishing a coupling analysis system of deformation-temperature-structure evolution for the martensitic stainless steel just mentioned, so that the effects of deformation parameters on the temperature field, strain field and microstructure field can be studied at the same time without splitting. The impact is obviously more instructive for actual production process design and optimization. Ah this ??For the first time, Xu Yang felt that his thoughts were being thrown away by others. ?It was like under the apple tree that influenced physics, while she was still busy picking up apples, others were already thinking about why the apples fell from the tree... (End of this chapter) Chapter 242 We must have bottom-line thinking on key technologies Chapter 242: Have bottom-line thinking on key technologies So...Dr. Chang, you already have plans in this regard? ?Xu Yang''s voice was a little dry, but she didn''t care about that much anymore. ??If the idea just mentioned by the other party can come true, it will definitely trigger a major earthquake in the field of numerical computing applications. We cant talk about the plan yet. We can only say that we have some preliminary ideas, but we are still a little far away from the plan. We need to fill in some theoretical and experimental gaps. ?Chang Haonan shook his head. Even with systematic help, he would not be that awesome. This should be a somewhat lengthy, step-by-step process. After all, if he alone, or a few people around him, conduct experiments and collect data, he may not be able to optimize what he wants in the next life. So a wiser choice would be to create the most basic version first, and then rely on the entire industry to provide feedback and upgrade step by step... ?It seems to be similar to the thinking of some car companies before his rebirth. New car launches are all cake, and all features have to wait for OTA. Ahem In short, although there is some controversy in the cycling circle, the routine itself is not problematic. As the functions of software become more and more complex, it is gradually becoming unfeasible in terms of technology and cost to release a so-called "complete version" in one step. Instead of forcing a semi-finished product with comprehensive functions but poor reliability, it is better to specialize first Focus on polishing a few specific modules, gain users and reputation, and then gradually expand. And he just borrowed a little bit from the Internet thinking more than 20 years later. "Numerical simulation of multi-physics coupling is still a blank in the world. As far as I know, only a few schools have some very simple tool kits. If a breakthrough can be made in this area, it will definitely be possible." A major event that affects the entire industry! ?Xu Yang looked at Chang Haonan beside him with bright eyes. This is true, but the first step is to be down-to-earth. ?Chang Haonan expressed his thoughts: "First, we simulate several commonly used single physical fields such as heat transfer phase change, structural mechanics, fluid mechanics, and electromagnetic fields, as well as weak simulations involving 2-3 physical fields such as convection diffusion, convective heat transfer, thermoelectric coupling, and fluid-solid coupling. Once the coupling problem is solved, we will gradually tackle more physical fields and stronger coupling problems. But if thats the case Xu Yang frowned slightly when he heard this: "Dr. Chang, you should also know that almost all single-physics simulations now have relatively mature solutions, and weak coupling problems with low nonlinearity can also be solved through brief coupling or full coupling. I am afraid that for new It wont be very attractive to users What she said certainly makes sense. Human beings are all inert, and they will stay the same if they can. This is especially true in the engineering field. ?Before Chang Haonan was reborn, there were even some engineering software that had not been updated for many years and only supported Windows 98 system, so that their research institute had always kept an old computer that could be called a cultural relic. But the problem is that, similar to the situation of civil aircraft airworthiness certification, if you dont seek changes now, and you want to do the same thing in the future, the price you pay will be hundreds and thousands of times higher. Chang Haonan, who has experienced this once, is very clear about this. On the one hand, it is early 1997. Although related industrial software in Western developed countries has been developed for about 20 to 30 years, it has just begun, or has not yet begun to think about commercialization. Everyone is still on the same page. On the starting line. On the other hand, in China, only universities, research institutes and state-owned enterprises that use commercial software extensively are places that can be reached by administrative orders, and relevant software ecological barriers have not yet been established. In fact, China''s own semiconductor industry and software industry were not established very late. They have already improved in the early 1980s. The gap with Neon is about 5 years. Although it is not advanced, it can still be regarded as advanced. Formed its own set of industrial systems. However, like many industries, the budding trends have been suppressed. Without top-down support and without a mature business model, scientific research, education, and industry were quickly isolated. Hardware manufacturing plants have become assembly lines that provide cheap labor for foreign companies, and the software industry has completely become a vassal of others. A large number of software engineers who originally developed software independently have become ordinary low-level code farmers. Only some research institutes and schools are left to continue research, but they are also unable to support themselves. After losing their ecology, they are increasingly disconnected from actual production. It was not until more than 20 years later that due to various reasons, we finally paid attention to this aspect again. In fact, a similar situation also occurred in Maozi after its disintegration. In 1990, the electronics industry in Mao Xiong was probably equivalent to the level of the United States in 1985. But by 2000, they were still stuck at the level of Americans in 1985, and completely missed the explosion of the information industry in the 1990s (actually it was even worse, because they didn''t even have the opportunity to follow other people''s standards). It was also more than 20 years later, due to sanctions, that the industry was revived. By that time, it had already lagged behind the advanced level for many years. In short, it was difficult for people in 1997 to understand the bitterness and sorrow involved. For Chang Haonan, who was reborn, it was not too late to make amends. ? He ??really doesnt know anything about semiconductors now, so he should start with industrial software. If we only consider it from a technical perspective, Researcher Xu is right. Chang Haonan used a more euphemistic term. After all, no matter how talented a person is, it is difficult to transcend the times. It is normal to have the same thoughts as just now. Xu Yang could naturally tell that Chang Haonan had different opinions from hers, but considering the other party''s ability, she just showed a curious expression: But industrial software is not entirely a technical issue, otherwise there would be no Wassenaar Agreement. Now that we use foreign software, we really dont feel any inconvenience other than the language barrier. But thats because many software have not yet been commercialized, or are in the process of expanding the market in the early stages of commercialization. But if we continue to let These foreign companies are attacking our city and territory unscrupulously, and there is no telling what will happen in the future. Right now, everyones starting point is pretty much the same, but the information industry is developing so fast. The more users an industrial software has, the more information feedback the developers will get, and a database with larger quantity and higher quality will be formed. In order to develop a more usable data model. If we cannot keep up with this step, we will not be able to keep up with each step. If one day in the future, some industrial software suddenly appears in the Wassenaar Agreement, we will think about it then. Its more difficult to chase and accumulate data from the beginning. The powerful words made the atmosphere around the whole table become a little heavy. Xu Yang, who was a little unimpressed just now, his pupils trembled sharply after hearing this, as if he had seen a new continent. She would choose to return to China from the United States in the early 1990s, and there was naturally no shortage of feelings about her family and country. But many things are not just about feelings. The struggle on the scientific and technological front is also a struggle, and it requires skills and strategies. In this regard, obviously no one can compare with Chang Haonan, who has experienced the trade war era. Actually, we have made a breakthrough in the export of industrial software. Looking at the people who were lost in thought, Chang Haonan once again dropped a bombshell. ??Anyway, the people sitting here have sufficient authority. Industrial software...export? ?Xu Yang, who was outside the aviation industry system and had no idea about China''s negotiations with Europe, felt that for the first time in his life, his mind was a little out of his depth. You must know that Chinas software industry is still at a stage where it is not clear how to localize the UI interface. Why was it exported? Chang Haonan nodded: Yes, this is a small software that predicts the icing probability and ice type of aircraft in humid and cold environments. It is not our first creation, but its function is definitely better than any foreign competing products, and it is sold to Europeans. This shows that as long as we can create unique functions or features, we can completely defeat others in the software field! Actually, considering this was at the dinner table, he still had half a sentence left to say ??Anyway, the performance of everyone''s products now relies on defense. Even if what we make is a defense, as long as it is made into chocolate flavor, some people will pinch their noses and eat it. ?At this time, on the other side of the dinner table, Sun Cong, who had been listening to the conversation between the two just now, suddenly said: "I have heard about this matter, but I have never been sure whether it is true or not. Now that Comrade Xiao Chang has said it, it is indeed a huge breakthrough..." With the praise, Chang Haonan naturally took it up: Of course, this time we have indeed taken advantage of a rare opportunity to create discord between Europe and the United States. No one can guarantee that other software in the future will have such a good response internationally. However, what I want to say is that in terms of including but not limited to industrial software, we must have bottom-line thinking and cannot let others hold our necks! (End of this chapter) Chapter 243 Jinling, 14th Institute of Electrical Engineering! Chapter 243 Jinling, 14th Institute of Electrical Engineering! I think what Comrade Xiao Chang said makes sense. The first person to clearly express his support was Xue Chishou, who was in charge of Project No. 10 of the 611 Institute: "Bottom line thinking is a good word to use. Thinking back on the development of our country''s military industry, to sum up, it is a process of constantly improving bottom line thinking. Although my understanding of business is limited to setting up a stall and selling noodles, I think the principle should be similar. ?This sentence made everyone who knew the inside story laugh, but the expressions on their faces did not become relaxed because of the smile When Project No. 10 was just launched, it was the most difficult time for China''s military industry. In order to subsidize the team''s funds and maintain the living expenses of the project team members, the chief designer Song Wencong and the chief engineer Xue Chishou both led a team to sell them after work. Noodle fundraiser. ?Of course they are not the only ones, except for the really young Chang Haonan and Xu Yang, everyone sitting around this table has experienced that era. ??Looking back on it now, it is certainly a joke, but for everyone at the time, it was the darkest moment. Fortunately, everyone has experienced strong winds and waves, so we wont emo for too long on such occasions. Xue Chishou just paused and continued: When doing business, of course there is a contract, but I think a contract is similar to a treaty. If you really dont have any countermeasures, people wont abide by it. I can only say that as expected of an old comrade, I still see clearly in these aspects. Everyone else nodded. As the deputy secretary of Institute 601, Luo Yang, who is actually in charge of the work, even expressed his position directly: Take Fluent, which has just been promoted and applied in recent years. Anyway, there are still few project files accumulated. If there is a domestic substitute with similar functions and performance, our 601 Institute will definitely be willing to use it instead. ?In addition to the working relationship established between Chang Haonan and 601, Luo Yang himself actually graduated from Beijing Airlines and is considered a senior of the former. Be it public or private, he should support this matter unconditionally. ?While a few people were talking and chatting, the dinner party officially started. ? What should be said has been pretty much said in the previous meeting, so there is no complicated process now. Mr. Wang and Mr. Liu each said a few words of blessing and expectation and took their seats respectively. ?Of course, in the middle of the banquet, they still have to go to some representative tables to express condolences. Just like Chang Haonan and the others. I just saw your discussion was very lively. Lao Liu slowly drank the white wine in the small cup in his hand and seemed to be in high spirits. Yes, we were just talking about industrial software, and Comrade Chang Haonan made a statement, saying that we must have bottom-line thinking when it comes to key technologies! Xue Chishou, the oldest among the group, briefly summarized what Chang Haonan meant just now. After hearing the report, Mr. Liu was unexpectedly stunned for a while, as if he had thought of something. After a while, he picked up the glass in his hand again, added half a glass of wine, and then clinked glasses with Chang Haonan alone. After drinking it down again, he turned around and left. Looking at the retreating figure, someone suddenly whispered: Mr. Lius regret is that he didnt promote our own aircraft carrier project, right? For a moment, Chang Haonan almost thought that he had returned to more than 20 years in the future, but then he realized that what the other party was talking about was that Mr. Liu was about to retire. But for himself, this sentence obviously has a different understanding. In the previous life, just over a year before the No. 16 ship was commissioned, Mr. Liu passed away in January 2011. After all, he never saw the day when the first Chinese aircraft carrier was commissioned. "It doesn''t matter, we Chinese military workers pay attention to passing on the fire from generation to generation, he will definitely see it." ?Chang Haonan put down his cup. ?However, the matter of aircraft carriers is a bit far away for China, whose current largest combat ship is less than 5,000 tons. Secondly, the people sitting here are all people from the aviation industry system, and they really dont know much about it. So everyones topic quickly returned to several key models currently being promoted. But among them, Luo Yang glanced at Chang Haonan who was diagonally opposite, showing a thoughtful expression. In short, the celebration banquet ended with a pleasant discussion on academic and industrial development. When leaving Sanzuomen, Xu Yang specifically found Chang Haonan and handed him two pieces of paper, one of which had his office phone number and pager number written on it. Dr. Chang, lets leave each others contact information. Its almost the 21st century, and the efficiency of writing letters is really low. At the end of the sentence, she couldn''t help but smile. When I wrote the first letter, I made this decision because I really couldn''t contact Chang Haonan by phone. As a result, the two of them communicated through letters several times, and even sent a message in this way. This article is not the top publication of their main business. Phone number ?Chang Haonan didn''t know how to answer for a while. ?In this era, not many people have access to mobile phones, and most of them have landline phones. Since his job requires him to travel around, he rarely stays in a fixed place throughout the year. Ill leave you the laboratorys landline number first, but I rarely stay in the laboratory, so you may need to transfer the call a few times. ? Xu Yang nodded and took the note from Chang Haonan: Dont you need a pager? In fact, since last year, that is, the second half of 1996, the pager business has begun to decline significantly, especially in big cities like Beijing, which has been severely affected by the price reduction of mobile phones. ?However, in the pre-Internet era, this phenomenon could not be fed back to users very quickly, so many people still used pagers as their main method of contact. Well...I havent bought it yet. If I really need it later, I might just buy a mobile phone. Before his rebirth, Chang Haonan was an ordinary poor student. He took the initiative to make phone calls to contact his family. Naturally, he would not spend a lot of money to buy a pager. After his rebirth, Chang Haonan basically didn''t run around. Even during his breaks, he basically stayed in the dormitory or at home where he was not difficult to find, so there has been no relevant demand. ??More importantly, he knew that pagers would be eliminated in big cities in about a year or two at most, so it was naturally impossible to buy them now. You cant tell, Dr. Chang is quite rich. Xu Yang smiled and folded the note paper and put it in his bag: Then please contact me more proactively in the future. "No problem at all." ?Chang Haonan suddenly felt that he couldn''t cope with the other party. After leaving Sanzuomen, Chang Haonan naturally returned to his home near the school. According to his original plan, he should spend a few days to discuss the teaching materials with Professor Liu Hongbo. In addition, he had been fishing in Haojing for a while, so he went directly to the meeting early the next morning. We arrived at the long-lost college building. ??When Fang Zhen, who came to the laboratory early, saw Chang Haonan standing at the door, he even showed a moment of confusion. Junior brother? Why are you here? Shouldnt it be normal to come to the laboratory... ?Chang Haonan showed a dumbfounded expression. Of course its normal for us to come to the laboratory. Fang Zhen stood up without saying a word, picked up the thermos next to him and poured a glass of water for Chang Haonan: Junior brother, drink water. He decided to take advantage of the situation by taking advantage of the situation and at the same time maintain a good relationship with the other party. In fact, Fang Zhen is a complete outsider and knows almost nothing about what Chang Haonan did during this period, but even the limited information that can be revealed is enough for him to see that his junior brother is extremely Extraordinary people. Hey, okay, thank you, senior brother. I dont know why junior brother came to the laboratory this time... ?Unconsciously, Fang Zhen''s tone sounded a bit like he was talking to Du Yishan. ?Chang Haonan took the water glass and took a sip: Oh, lets talk to Senior Brother Liu Hongbo about compiling textbooks. Teaching materials? You and senior brother... compile teaching materials together? Even though Fang Zhen had already completed all the courses, this incident still shocked his soul greatly. Yeah, because our graduate students will need it in the second half of the year, so its still a bit urgent. So its still a postgraduate textbook? Fang Zhen is already a bit incompetent. Good guys, you should compile your own teaching materials, right? Why dont you just go to class... ?But Chang Haonan came at the wrong time. Liu Hongbo took half a day off today because of family matters and would not come back until the afternoon. ?And Guo Lins efficiency far exceeded his imagination At noon that day, Chang Haonan received a formal letter from the 14th Institute of Electrical Engineering, inviting him to participate in a research project on a new type of electronic jamming pod. The plane to Jinling will take off in a few hours. (End of this chapter) Chapter 244 Preparing to replicate electronic warfare pods Chapter 244 Preparing to copy the electronic warfare pod As one of the economically developed key cities in the Yangtze River Basin, Jinling actually has many flights to the capital every day. Logically speaking, Chang Haonan just needs to ask the college to buy him a plane ticket like he did when he first went to Shengjing. But after experiencing a series of previous events, Chang Haonan is naturally no longer that unknown little person. ?For example, the most obvious point is that in order to ensure safety, all his air travel will be handled free of charge by United Airlines, which has an Air Force background. Chang Haonan himself was happy to save the trouble and boarded a Boeing 737 aircraft operated under the name of flight CUA353 in the afternoon. This flight is real. It flies from Beijing to Chancheng via Jinling, but it is not open every day. The three airports it passes through, Nanyuan, Daxiaochang and Shadi, are all military-civilian airports under the jurisdiction of the military, which is very suitable for Chang Hao. Nan traveled without making too much noise. Xu Yang, who was going to Jinling with him, also took advantage of the opportunity and experienced the first-class cabin operated by United Airlines. ?However, the price of her air ticket still has to be paid by the 14th school, but it only costs the price of economy class. ?Of course, despite the name, by the late 1990s, first class on most short-haul aircraft had essentially become business class with upgraded hardware. Why is the Electronic Technology Group so rich? Can they buy first-class flights for both of us? ? Xu Yang put away his carry-on luggage and then felt the seats that were more spacious and softer than those in the economy class. She didnt know the inside story. She was only told about the upgrade when she came to the airport to exchange her ticket, so she naturally thought it was an arrangement made by Jinling. Its okay, although Dianke Groups benefits are indeed good, I dont have to spend money to fly. Besides, even if we dont upgrade, they cant sell many tickets here. ?Chang Haonan said as he flattened the seat to nearly 180 and prepared to take a rest. ?In this era, there are only a few people who can afford to fly, and even fewer passengers are willing to spend money to buy higher-class cabins. ?As a result, those who ended up flying first class were mostly people like Chang Haonan who didnt spend any money, or at least people like Xu Yang who were upgraded without spending money. Is it OK without spending any money? After two days, Xu Yang has become accustomed to the various surprises brought by Chang Haonan, so he did not show any surprise, but only said half-jokingly: Had I known there would be such a good thing, I would have joined your Aviation Industry Group after returning to China. Obviously she thought this was a welfare within the aviation industry system. Chang Haonan did not clear up the other partys misunderstanding, and replied in the same joking tone: Its not too late if you want to join... When the plane landed, the 14th Institute of Electrical Engineering naturally arranged a dedicated person to pick him up. It''s just different from the common 212+Coaster configuration here in the north. Jinling uses the 212+Iveco Deyi which is very local. ? Before Chang Haonan was reborn, this kind of light passenger car had few users except for centralized procurement and use as a special vehicle chassis. However, from the 1990s to 2010, Iveco was a popular model all over the country. ?As expected, the person leading the team was Guo Lin, who had met Chang Haonan and the others. Guo Gong moved very quickly. I thought I would have to wait for a few days. The three of them shook hands and then got in the car. Xu Yang sat in the same double row seat as Chang Haonan very naturally. As soon as the people in the office heard that we were going to invite you two, they approved the note without saying a word, for fear that something would be delayed. ??Guo Lin motioned to the driver in front to drive: Should we take a break first or what should we say? ?Chang Haonan turned his head and looked at Xu Yang beside him, who just shrugged to show that he didn''t care. After you put your luggage away, lets take a look at the pod first. Researcher Xu and I wanted to see what this high-end American gadget looks like along the way. "no problem." ? ? 14th Institute of Electrical Engineering is only about 20 kilometers away from Dajiaochang Airport. In the 1990s, there were basically no traffic jams, and it only took about half an hour to reach the destination. After getting off the car, the two entered a building under the leadership of Guo Lin, and then turned around several times before finally seeing the captured pod and 14 more in a place that should be the basement. of other staff. ?The workplace is not a place for small talk, so after just a brief exchange of greetings, Chang Haonan and Xu Yang put on anti-static lab coats and had close contact with their research subjects for the first time. In the past few days, we have basically completed the splicing work of these fragments. Although the function is definitely no longer restored, at least the overall appearance should not be much different from before it was broken. ?Guo Lin followed behind the two and introduced. The moment he saw the pod, Chang Haonan was basically sure that his previous guess was correct. Leaving aside the synthetic aperture radar antenna in the middle, this is an electronic jamming device based on digital radio frequency memory (DRFM) technology. Xu Yang next to him also found the key point almost at the same time: There is no traveling wave tube or CNC phase shifter in this. If you are sure that you didnt miss it during the search, then this thing should use a relatively new all-digital design. It is no different from Chang Haonans judgment. The latter did not do it rashly, but asked the staff nearby to remove the fairings that partially blocked the view, revealing the true appearance. But...the design of this pod is so bloated. ?Xu Yang frowned slightly when he saw the whole interior, and seemed a little puzzled. When we were searching in the mountainous area, we also felt it was very strange, but we can be sure that at least no large pieces were missing. This thing should have been designed to look like this. ??Guo Lin explained from the side. Chang Haonan, who was circling the pod wreckage, was also surprised. Having lived through the Internet age, he has seen pictures of the insides of the AN/APS-154 Synthetic Aperture Radar (SAR) pod and the AN/ALQ-99 electronic jamming pod. Although the lower half is basically empty, the equipment is filling up. There is still a level of about 60%. But the thing in front of me is at least 10 meters long, and only the front and rear ends and the middle section are equipped with equipment, and the rest are empty shells Possibly due to power supply or weight constraints, the SAR antenna inside the pod is only about 4 meters long, which does not fully utilize the space. Logically speaking, this kind of tactical equipment should be as compact as possible. Anyway, lets use an optical amplification device to take a look at the circuit design. I see that the memory has been smashed, so there should be no possibility of restoring the program code. ?Chang Haonan decided to put aside his doubts for the time being and start from a more reliable place. ??When he first entered this laboratory, he was worried that any special equipment would be needed, but the circuit boards that were the core of the interference part were not large in size and only required an ordinary optical microscope. High-end scientific research often requires only the simplest tools. Phase accumulator, waveform memory, low-pass filter, reference clock Even though Chang Haonan has never seen these component models from the 1990s, it is still not difficult to judge their functions through some appearance features and vague inscriptions on the surface: Yes, this board is a direct digital frequency synthesizer. "Under the control of the reference clock, the phase accumulator linearly accumulates the frequency control word K, and the obtained phase code (n) addresses the waveform memory (ROM) so that it outputs the corresponding amplitude code, which is passed through DAC and low-pass filtering Then the corresponding analog signal can be output. ?Chang Haonan looked up from the binocular microscope and found Guo Lin next to him and his colleagues looking at him with incredible eyes. "What''s wrong?" This...can...be seen directly? ??Guo Lin looked at Chang Haonan, who looked as if he was just eating and drinking, and then at the huge pod that had just been put together next to him. He suddenly felt that his previous work seemed a bit in vain... (End of this chapter) Chapter 245 Radar jamming technology based on digital radio frequency Chapter 245 Radar jamming technology based on digital radio frequency ?The faces of the other people standing behind Guo Lin were also very exciting. Intuitively, they dont quite believe that someone can directly judge the design principle of the circuit in such a short time. Mainly because its too fast. ?Those who can enter the 14th Institute of Electrical Engineering are somewhat capable in circuit design. But when you really get a circuit board that has never been touched, is inherently damaged, and has a lot of new components, it will still take a few days to analyze it no matter what. ??If you are facing this kind of military circuit board with many non-standard parts and electromagnetic shielding packages, you may have to collect some materials specifically. After all, in this era, the transmission of information is really not smooth. And Chang Haonan''s performance gave them the first impression that it was... Looking at a circuit board that is already very familiar to me. In this way, many intermediate processes can be omitted, and judgments can be made directly as long as some typical characteristics are found. But how is this possible? ?This pod was probably secretly produced by Raytheon Company. From the time it was captured to the time it was secretly transported back to Jinling, the number of people with knowledge of it was also controlled within a very limited range. Chang Haonan, who just arrived at Institute 14 today, has never had the chance to see the real thing even though he had heard a few words from Guo Lin before. But on the other hand, the person who said this was Chang Haonan after all. ??And Xu Yang next to him did not express any objection. If someone else made such a judgment, it would definitely be considered as lying. But the situation of these two people is different. Although algorithm theory, software programs and circuit hardware can be regarded as three different fields, they are all under the category of control engineering after all. After all, he wrote a paper that was on the cover of IEEETransactionsonAutomaticControl. In short, its quite confusing. It should be said that these peoples guess was not wrong. Chang Haonan was able to use a microscope to see the working principle of the jamming device, naturally not because he had the Sharingan, but because he had already made a guess before, and now he was just verifying it. Or to be more precise, it is just to add some rationality to one''s own judgment. Otherwise, if you just tell the result directly at a glance, I am afraid it will be difficult for others to believe it. In fact, he has taken advantage of the times. In later generations, this kind of DDS can be integrated into an integrated circuit with a side length of no more than two centimeters, instead of a palm-sized circuit board like the one in front of us, which is definitely not something that can be seen with an ordinary optical microscope. ?Of course, it seems that it is still a bit beyond Guo Lins ability to accept. But it doesnt matter, it can be explained. ? He ??just described it in words, which was indeed not intuitive enough. Moreover, everyone else was not mentally prepared and probably didnt hear the whole story. Its normal to be dubious. Actually, although this board looks very complicated, the core principle is not difficult to understand. You are just scared by the origin and packaging specifications of this thing. Chang Haonan took the circuit board off the microscope stage and gently put it back in place: Is there a blackboard? I can draw a picture of the principle and it will be easy to understand. Guo Lin is the one who believes in Chang Haonan the most among the people except Xu Yang. He just listened to the judgment given by the latter completely, but because he spoke too fast, he still didn''t fully understand it. Now he naturally wants to catch him. Live this opportunity. Something is available, its right next door. ??More than a dozen people came to a small conference room nearby. Only Xu Yang did not follow immediately. After explaining it in a low voice to Chang Haonan, she picked up a few other circuit board fragments and observed them alone.??? ? Sometimes Chang Haonan wonders whether the blackboards used by enterprises affiliated to the Science and Technology Commission system are purchased centrally. In short, this room, this blackboard and this chalk made him dream back to House 601. Although this direct digital frequency synthesis sounds like a scary new concept, we should all be able to understand the workflow. Chang Haonan said and drew a simple schematic block diagram on the blackboard: This is what it looked like after I deleted all the non-core components on that circuit board. ??He didn''t even need to repeat his previous explanation, and the engineers from the 14 institutes surrounding the blackboard showed a look of understanding. This is the role of peeling off the cocoon. ?Just like some math problems, you can''t find the idea at all when you do it for the first time, but after reading the answer or listening to the teacher explain it once, you will find it very simple. So the function of this thing is to perform carrier frequency shifting with higher efficiency? Soon someone figured out some important links. Thats right, the DDS (Direct Digital Synthesizer) itself is just part of a Field Programmable Gate Array (FPGA). Perhaps taking into account electromagnetic compatibility and stability issues, this FPGA was designed to be very large, and even three layers of circuit boards were stacked to achieve all functions. Chang Haonan picked up the chalk again, added a dotted box around the picture he had just drawn, and wrote the three letters DDS inside. Then he drew several other components on the blackboard and connected them into a larger area. circuit. "I see!" ?Guo Lin, who was standing closest to the blackboard, was particularly excited: "The input radar radio frequency signal is mixed with the system local oscillator, and down-converted to an intermediate frequency signal through band-pass filtering (BPF); after the intermediate-frequency analog signal is mixed with the precise local oscillator and low-pass filtered (LPF), a baseband analog signal is obtained; ADC Under the control of the sampling clock, analog-to-digital conversion is implemented, and the output digital signal is stored in RAM; during the forwarding process, the read data is reconstructed into a baseband analog signal after being filtered by DAC and low-pass filtering; this reconstructed signal is consistent with the system local oscillator After mixing, the frequency is upconverted into a radio frequency interference signal..." At the beginning, Guo Lins analysis was very smooth, but later on, he realized that something was wrong: It feels like...it feels like theres a module thats not being used? Chang Haonan nodded: "Well... this should be a transformation module used for orthogonal down-conversion processing, used to convert one intermediate frequency signal into two orthogonal components. As for the specific algorithm and the ultimate purpose of doing so, we still have to wait until Dr. Xu I can analyze it while analyzing it, but if I have to guess, it may be to increase the bandwidth at a low sampling rate to ensure the interference effect on low-frequency radar..." As soon as he finished speaking, Xu Yang, wearing a lab coat and without even taking off his goggles, pushed the door in from the outside and came to Chang Haonan: This should be an orthogonal dual-channel DRFM that can process two orthogonal components at the same time. Under the condition of the same sampling rate, the bandwidth can be doubled..." As soon as she finished speaking, she found that everyone in the room was looking at her with strange eyes. Or, to be more precise, he looked at the small blackboard behind him. ?So Xu Yang turned around subconsciously: Hey, so youve seen it too? Thats not true. ?Chang Haonan waved his hand and put the chalk on the table next to him: I reasoned it out. ??The understatement made the whole room quiet for a moment. "All right." A few seconds later, Xu Yang nodded with a complicated attitude: No matter what, theres one thing I still cant understand. According to this schematic diagram, there is no need to design the pod to be so bulky. It can be about 6 meters in length, so that some ordinary tactical aircraft can also be mounted normally. (End of this chapter) Chapter 246 Can it interfere with GPS? Chapter 246 Can GPS be interfered with? ??Concerning Xu Yang''s question, Chang Haonan couldn''t figure out the mystery for a while. The L005S electronic jamming device, which has a similar principle to this thing, is quite compact and can even be hung on the wingtips of the Su-27. The United States'' level in the field of integrated circuits is obviously much higher than that of its big brother in the north. It seems that there is no need to create such a little bit. Silly, big, black and thick design. But for this kind of problem involving engineering practice, there is absolutely no future by relying on brainstorming alone. It is still necessary to build a prototype for experimentation. And despite the fact that it took Chang Haonan and Xu Yang half an hour to analyze the hardware structure, in fact, even if 14 Research Institute only relied on itself, it would only take a few more weeks to complete. ??To truly replicate the electromagnetic interference function of this pod, a series of issues such as software design and functional debugging need to be solved. Fortunately, with such a reference, the process from circuit principle to circuit design should be easy to follow. So next ?Guo Lin subconsciously turned his head and looked at Chang Haonan beside him. Next, we will first test the parts of the wreckage that are not completely damaged, and then design something with the same function based on our analysis to see if we can fully restore the effect of the American pod... ?Chang Haonan arranged the next tasks in an orderly manner. ?After his management ability increased to lv2, he has gradually become accustomed to leading a team of 10-20 people, so he seems quite comfortable at this time: Because we can no longer analyze and decode the software part of this device, we can only design the FPGA algorithm ourselves. Fortunately, Researcher Xu should be very good at this aspect. Xu Yang, who had been suppressed by Chang Haonan for a whole day, finally found what he was good at and readily agreed: "No problem. Digital signal processing should mainly involve distributed algorithms (DA). In addition, if the performance of our components, especially DPRAM, is not enough, I can also assign a DA implementation structure to multiple independent N In the lookup table of parallel DA, the table size is reduced and some hardware resources are saved. " It would be great if it could be like this. Chang Haonan might be a little more worried if others took over everything, but Xu Yangs foundation in algorithm theory is still credible. The efficiency of the two thighs far exceeded Guo Lins previous expectations. He could hardly wait to start researching the next step of the plan, so he rubbed his hands excitedly: Then lets start work after dinner? Theres no need to be so anxious Chang Haonan looked at Guo Lin who looked very motivated and said with a smile: Just follow the usual pace. We are not rushing to meet any deadlines. It is important to maintain long-term and efficient work. Oh, thats right ?Guo Lin scratched his head: Besides, you two have just arrived, and we havent caught the wind yet, so we let you start work. A burst of laughter erupted in the not-so-large conference room. In short, after confirming the next schedule, everyone changed into casual clothes and prepared to go upstairs for dinner. Chang Gong, Researcher Xu, although Beijing roast duck is very famous, the way we eat this duck in Jinling is also unique. You must try it. As he was about to walk out of the door of the building, Guo Lin, who was in a good mood, said to the two people following him. ?Chang Haonan is already used to being regarded as a native of the capital. As for Xu Yang... Judging from her accent, she should really be a native of the capital. "good." When facing most people, the latters communication method still emphasizes conciseness and conciseness. Chang Haonan, who was standing next to him, did not answer, but looked back blankly at the building behind him. Speaking of which, your R&D building actually has two underground floors? Even though Guo Lin didnt know why Chang Haonan suddenly asked this, he still answered truthfully: "That''s right, but the ventilation in the underground part is not very good and is rarely used. It is for this reason that the institute decided to put the pod there to prevent it from being hit by people who don''t know the inside story." ?Theoretically, everyone who can enter the building should have a sufficient confidentiality level, but in this kind of thing, it is always right to be careful. To everyone else in the know, this was an ordinary arrangement. But it was different in Chang Haonan''s mind. Place a high-tech gadget captured from the Americans in the basement. There were so many factors involved in this matter that it was difficult for him not to think of a rumor that had been widely circulated in his previous life. A rumor related to the Balkans and F117. Although judging from the later decrypted content, this statement is probably completely fabricated, but the incident that occurred near the turn of the century can definitely be regarded as one of the eternal regrets of the vast number of Chinese people in the previous life. Speaking of which, have you, the 14th Institute of Electronic Science and Technology of China, ever researched other interference devices before, such as...interfering with satellite navigation signals? After thinking for a moment, Chang Haonan finally found a less out-of-the-box question as an entry point. Our main direction is radar, so we will do more research on anti-interference. Guo Lin, who had no idea what was going on, just thought the other party was chatting casually and immediately shook his head: "That is to say, in fact, in our country, whether it is interference or anti-interference, we are mainly studying passive factors, such as environmental clutter. Before, active interference and anti-interference methods basically only had theoretical preliminary research. Now this is considered Real project implemented for the first time. Chang Gong thinks that the design idea of ??the jamming pod can also be used to interfere with satellite transmissions? Oh, thats not the case. Chang Haonan pretended to be nonchalant and replied: "Frequency shift interference is aimed at the coherent accumulation technology used in PD radar signal processing. It is not very useful for interfering with satellite navigation signals. At most, it can only be used to simulate the Doppler frequency shift characteristics of the received signal. It is not considered a Core Technology." "I was just thinking when I saw that pod, if our equipment, or key locations that need to be protected from satellite-guided weapon attacks, could be equipped with a similar portable jamming device, would it be possible to avoid repeating... uh, again? Are you going to make the same mistake as the Iraqi army in 1991? In this era, Chinese peoples understanding of modern warfare basically comes from the Gulf War, or strictly speaking, from various legends about the Gulf War. Although most of these legends have nothing to do with the reality, but in the At times like this, it''s quite useful to take it out to temporarily block the gun. Dr. Chang, if you are just going to interfere with GPS civilian receivers, there is actually no technical difficulty, because the signal characteristics are all public. You only need to simulate a navigation signal with the same characteristics but stronger power. ??This time it was Xu Yang who spoke: However, the source code of military GPS is kept confidential, and more and more accurate signal recognition technologies will be used. Im afraid we need more sophisticated control theories and algorithms. Obviously, this is not a direction that can see immediate results. But fortunately, Chang Haonan still has time. About a little more than two years. Of course I know this, but after the current radar jamming pod project comes to an end, GPS jamming can be considered as a future research direction. (End of this chapter) Chapter 247 Components stuck in neck? not a problem! Chapter 247: Components stuck? not a problem! ?At about the same time, across the ocean in Arlington County, Virginia. ??The new Defense Secretary William Cohen, who has gradually straightened out his work, received another piece of news related to the previously shot down MiG-25. bad news. ?This time, the intelligence came from the Defense Intelligence Agency (DIA). ?About twenty minutes ago, DIA Director Lieutenant General Therese Henrion knocked on the door of the Defense Ministers office in a hurry, and then handed a document with an encryption stamp to the latter. What Cohen had been most worried about had finally happened. Based on reliable intelligence, the Chinese side found the wreckage of the downed MiG-25, and then seized the core part of it, the active and passive radar reconnaissance/jamming pod belonging to the CIA, and transported it back to the country. "About a month ago, General Shalikashvili assured me that considering the speed at which it was shot down, this plane, as well as all the equipment and pilots on it, would be shattered into pieces, and it would be impossible to search and search them completely. recovery." Mr. Minister of Defense felt that his temples were pounding, and he took several deep breaths before calming down a little - ?In the past few months since he took office, he has not only been wiping the **** of his predecessor, but also of his colleagues. Almost every day he has encountered all kinds of things that make people''s blood pressure rise. But this time the limit was exceeded. ??Although Cohen had previously successfully put all the blame on the CIA for its incompetence through a subtle blame-shifting operation, if the relevant technology is really leaked, it will ultimately be the military that will suffer the most. No one wants to face an enemy that cannot be locked on during a dogfight. ??And once a situation arises in which he is unable to deal with the enemy, it is he who will be scolded and questioned in the end. ?This is why CIA acting director George Tenet is also sitting in Cohen''s office at this time. "Regarding this point, our analysis result is that considering that it is impossible for the Chinese side to overcome our radar jamming equipment, the final downing of the MiG-25 may have been a very close and long-lasting visual range battle. The final attack is accomplished by cannon or infrared-guided missiles. ??In this era when things are not yet correct enough to cause chaos, Henrion can become the first female director in the history of DIA and work steadily for three years, and her professional skills are naturally unparalleled. She has already prepared answers to the questions these ministers may ask: So the Indian MiG-25 pilot had enough time to reduce its flying altitude and speed. When it was finally shot down, the aircraft was probably not in the high-altitude, high-speed state as previously speculated by General Shalikashvili. Henrion, who was born in the navy, is not specialized in this air force knowledge, but she still asked experts in the field to give her several lessons before coming here, which was enough for her to deal with the more layman civilian defense minister. "All right" Even though he had the urge to blow the head off the Tenet dog in front of him, Cohen still endured it. Now that things have happened, all he can do now is try to stop the loss: Is there any way to save it, such as asking our insiders to find a way to steal the pod wreckage? ?This question almost caused the blood pressure of the two intelligence chiefs on the opposite side to explode: "First of all, Mr. Minister, our informant is not omnipotent. He can only confirm that the pod wreckage has entered China, but he does not know where it is currently stored." Henrion explained to his whimsical boss with a helpless face: Secondly, that pod She looked at Tenet, who was called over by Cohen and didn''t speak for a long time because of some reasons. The latter also followed the trend and said: That pod is nearly 10 meters long and weighs almost a ton. Even if it has been smashed, it would be difficult for one person to steal it out. ?In fact, Cohen realized that the idea was a bit outrageous just now, but now he is the one who has the sense, so his momentum is not weak at all: Okay, lets assume that the Chinese have obtained a relatively complete pod, and then they should copy a similar model? Well...we at the CIA are willing to provide some remedial measures. Tenet also knows that the trouble his department has poked is a bit big. If the defense chief in front of him really insists on this matter and refuses to let go, then he may never be able to get rid of his nickname as acting director, so his attitude is quite good. : "The CIA can provide the jamming signal pattern of that jammer and pay you for targeted upgrades. In this way, even if the Chinese imitate an identical thing, it can ensure that our radar will be almost unaffected." "It sounds good, but what if the Chinese change the interference signal pattern?" Because of his past work experience, Cohen is very good at bargaining in negotiations. He pointed out the problem with Tenet''s method almost to the point. "In that case, the DRFM circuit on the jammer needs to be reconstructed. According to the judgment of our radio experts, the Chinese people should not have this capability within a few years. Their semiconductor and information industries have been in decline for about 10 years. They were destroyed by their own people and have not recovered yet. Of course, Tenet can''t let Cohen continue to open his mouth. He has made a lot of concessions this time: In fact, it is almost impossible for the Chinese to copy it exactly. There are some semiconductor devices in that pod that only Texas Instruments can produce, and their export is completely prohibited. The Chinese have no way to find substitutes. Having said all that, Cohen also knew that he was unlikely to take advantage of anything more. ??However, being able to get funds from the always stingy CIA to give the navy and air force aircraft a small upgrade is a good thing worth having two more drinks when he goes home at night. "Okay, but our military still needs to think more long-term. Upgrading radars must still be done, and the funds must come from your CIA. Everyone knows that you have your own small treasury and can bypass Congress. "make a deal." ?Although he felt that the other party''s request was still a bit outrageous, Tenet had no other choice at this time. After all, his control was still in the hands of others. Fortunately, the CIA''s funding sources are extremely complex, and even the IRS cannot fully trace them. It is not impossible to extract hundreds of millions from them. In fact, Tenets confidence is not without reason. ?In about a week that followed, Chang Haonan and Xu Yang led engineers from the 14th Institute to complete the entire analysis of the electronic warfare part of the captured pod. According to the plan, the next step should be to build a prototype and test the effect. However, the progress is stuck at this step. "Other parts are easy to say. Most of the components can be found in the civilian market. We only need to repackage them according to military regulations. The remaining ones can also be replaced with Russian or domestic products with poor performance. It will not cause any problems. Fatal impact." Xu Yang held the completed circuit design diagram in his hand and said to Chang Haonan in an extremely annoyed tone: "However, as we analyzed on the first day, this pod uses quadrature dual-channel amplitude quantization DRFM, and its core part is an analog-to-digital converter (ADC) with an extremely high sampling rate. I briefly checked , found that only Texas Instruments can produce it in the world, and there is no record of exporting it to the outside world. " "If we don''t use this high-speed ADC, the response speed of the entire pod to radar waves will become very slow, and even bugs will directly occur and must be restarted. Considering that it often takes less than a minute for anti-air missiles to lock to launch and hit. , this is absolutely unacceptable. Obviously, this feeling of having gone through all the previous processes but being unable to take the last step due to hardware reasons is not a good feeling. Can you consider not using orthogonal dual channels? Guo Lin next to him wanted to settle for the next best thing. In that case, the effect on broadband radar signals will be very bad, and it will have almost only laboratory value. ?Xu Yangs answer is equivalent to a death sentence for this idea. How could they spend so much effort just to create a technical verification device? Actually, it is not necessary to use a single high-frequency ADC. Chang Haonan gradually formed an idea in his mind, and after systematic verification, he found that it was feasible. Do you have any idea? Xu Yang raised his head and his tone became excited again. At least worth a try. Chang Haonan said as he pulled a piece of paper from the side and spread it on the table in front of him. (End of this chapter) Chapter 248 Frequency division multi-channel to avoid high-specification components Chapter 248: Frequency Division Multi-channel, Avoiding High-Specification Components When the rest of the people saw this, they also gathered around the table. If the dual-channel signal adopts an orthogonal design, it can essentially double the instantaneous bandwidth. Although DRFM has reduced the performance requirements for ADC and RAM compared to single-channel DRFM, it is still not enough. thorough." But we can consider giving up the idea of ??phase-divided sampling or time-divided sampling, and design multiple narrow-band DRFM subsystems, split according to frequency bands, and mix each channel with a voltage-controlled oscillator (VCO) to output a baseband analog signal. Processed by a narrowband DRFM subsystem, the bandwidth requirements for DRFM can be almost completely avoided, and the sampling frequency can be reduced to a fraction of the original. ?At this time, the pencil in Chang Haonan''s hand seemed to Guo Lin like a magic wand. The intersection between the tip of the pen and the paper continued to produce miracles as the former drew pictures. ??This time the circuit principle is more complicated, so Chang Haonan spent a while drawing it before finally completing it. This design is indeed feasible in theory, but if so much hardware is added to the project, each new part will bring system errors, and the superimposed noise floor and signal distortion must be very serious. Compared to Guo Lin who was still analyzing the schematic diagram, Xu Yang had already begun to think about the feasibility of this idea: "Among other things, the inconsistency between these channels requires phase level compensation. For dual-channel systems, you can also consider sharing a reference clock to achieve inter-channel coherence. This avoids the need for high-standard ADCs. and RAM, but as the number of channels increases, the requirements for the reference clock will increase, and we still cant build this thing. "The multi-channel technology that uses a reference clock that you are talking about is generally used on oscilloscopes. The DRFM architecture of the jammer is much more complex than that of the oscilloscope. Not to mention us, the Americans probably will not be able to take this route by relying solely on clock performance. The reason why this idea is considered feasible by the system is naturally because Chang Haonan has already considered this issue. So what we have to do next is to compensate for various error factors respectively. For example, a combination of calibration and compensation can be used to correct the distortion of the sampled data at the baseband, and suppress the amplitude-frequency characteristics and group delay characteristic errors in each channel, thereby ensuring that the reconstructed signal is close to the original signal. What about the phase difference problem? There are not many tricks to the phase difference, but it can be measured, or very accurately estimated, so that corrections can be made in advance. Chang Haonan explained as he wrote amidst the astonished eyes of those around him: "Suppose we send a broadband pulse signal with a **** of k through the digital-to-analog converter. The signal reaches the RF input end through the feedback branch. After going through the combiner, band-pass filtering, down-conversion, and low-pass filtering, it is collected by the DAC The signal processor performs STRETCH deskew processing on the original transmitted signal. Due to the delay difference between the two signals, a single frequency output f will be obtained. This frequency can basically represent the delay amount in the input-input process. t=f/k. "It''s that simple?" An engineer next to him was surprised to find that he could understand. He originally thought that he would be faced with a set of theories that were like a heavenly book, and then he would need to go back and study for a few days to understand it. Im just going to talk about the principle now. Its definitely simple, but later we need to consider the compensation algorithm in detail, and the workload is still quite big. Chang Haonan put down his pencil and shrugged. Guo Lin next to him had the insight to hand over a cup of tea at the right temperature. Passing tea to the boss.jpg The regular worker takes a drink of water. Chang Haonan picked up the cup and drank it in one gulp: "Of course, even under the most ideal conditions, it is impossible to completely eliminate the errors between multiple frequency bands. Especially for broadband cross-channel signals, the signal distortion generated at the intersection of frequency bands must exist in principle. , and the more they are stacked, the more they are, so we cannot make it unlimitedly with twenty or thirty channels, otherwise we may not even be able to pass the power-on self-test. "My current plan is to use the 350Mhz bandwidth DRFM that we can produce and can stably package, and get 10 parallel channels. In this way, even if the bandwidth loss at the frequency band junction is included, we can basically achieve a bandwidth coverage of about 2.5Ghz. " Thats not a lot The main business of Institute 14 is radar, so it is naturally sensitive enough to this kind of thing: As long as it can cover the frequency range of 6.5-9Ghz, it is enough to handle the C-band and X-band signals used by most air radars. Although the center point of the X-band is 10Ghz, considering the attenuation problem, in fact most radars will not use too high a frequency. 9Ghz is enough, and in the field of communications, the lower edge of the X-band will extend to 7Ghz. Nearby, the 6.5-9Ghz option can also provide precise directional interference to certain specific satellite communications. If the reconstructed signal compensation algorithm is done well enough, there should be potential in this area. Xu Yang can still keep up with Chang Haonan''s thinking in his own field of expertise. "The biggest problem now is that the size and weight of the equipment will be larger than the dual-channel orthogonal design, and it is also difficult to control the heat and power consumption. It is difficult to make a self-defense pod like L005 that does not occupy heavy-load mounting points. No need to think about it, fortunately, the performance of our thing is much better than the L005. If there are two of them on an aircraft in a formation, it can basically cover the entire fleet. " Chang Haonan casually drew a flat and long pod on the paper, and then drew a small fan-like thing on the head: However, we are still using it on airplanes anyway. Adding an impact generator on the head can solve some of the power supply problems. As for heat dissipation, it can also be solved by introducing low-temperature air conditioning into the air. As he spoke, he drew an outline similar to an airplane on the paper, but his drawing skills were so average that it was hard to tell whether it was a J-8C or a J-H-7. "In this case, do we have our own EA6B or EF111?" Looking at the concept map on the paper, an engineer standing behind Guo Lin suddenly said, his tone full of joy. It can be said that since the Gulf War a few years ago, for radar researchers like them, the two above-mentioned special electronic warfare aircraft have become the big devils that they think about day and night and hope to defeat. ??Although they still havent completely figured out how to defeat the enemy, now... Can you think of him as having created his own Great Demon King? Hmm Speaking of our pod alone, forwarding frequency shift interference is currently the mainstream technology route, and it is not bad in terms of functionality. Chang Haonan looked at the outline drawing on the draft paper in front of him and replied: But if you really want a dedicated electronic warfare aircraft, you will need to make major changes to the aircraft platform itself. It is almost useless to just hang two pods on an ordinary fighter aircraft. However, on the bright side, our imaginary enemy does not pay much attention to the construction of air defense systems due to its confidence in its air force, so the intensity of air defense suppression operations faced by our army is not as high as that of EA6B. In fact, having two such pods mounted on the J-8C or J-H-7 is closer to the effect of the F16CJ Wild Weasel in the US military. ?Of course, even this is enough to keep No. 14 Institute happy for a long time. Even though he has been reborn for nearly a year, Chang Haonan is still subconsciously used to directly comparing the things he creates with powerful enemies on the other side of the ocean. But for most people such as Guo Lin, this is something they dare not even think about no matter how optimistic they are. Being able to achieve "the enemy is strong and we have it" instead of "the enemy has it and we have nothing" is already a dream that many people hope to realize throughout their lives. But there are not exceptions. As a person of this era, Xu Yangs thinking is much broader: Its a pity that the flexibility of this set of tools to process broadband signals is average. It can only allocate resources equally to each channel, and there is no way to flexibly allocate frequencies to a specific narrowband frequency band based on the characteristics of the detected radar signal Chang Hao Nanxin, who was standing next to him, said that you dare to think about it. This is a function that was only implemented in the later third-generation electronic jammers such as EA6B and EF18G. ?However, he did not want to make the comrades of the 14th Institute think that the role of more advanced components could be replaced by structural upgrades alone because of his operation, so he followed the trend and continued: "No way, this is determined by the level of hardware manufacturing. The difficulty of creating a batch of 100% consistent components is no lower than building a high-resolution and high-sampling rate ADC, so in order to compensate for the distortion, some functionality must be paid. At the end of the day, we still have to find a way to re-develop our own semiconductor industry. Just relying on speculation will definitely hit the ceiling in advance. " Everyone who heard this sentence looked at each other. This is not a problem that their Department of Electrical Engineering 14 can solve. It doesnt matter, this kind of thing doesnt happen overnight. ?Chang Haonan also understands that things must be done step by step. Just like the previous layout of the civil aviation industry, if you want to influence this large-scale industry, the core is to find a starting point. If you just say directly that I want to engage in the XX industry, there will definitely be no future. Lets not think about things that far away. Since the principle works, we should be able to get an engineering prototype for testing in the next step? It can be seen that Guo Lin is already hungry for the thing drawn by Chang Haonan - When he first realized that high-standard components must be used and China was embargoed from importing them, he once thought that the project he had high hopes for was going to fail. Now it is possible to use domestic components with relatively backward technical indicators to achieve the system indicators of high-end products. It was definitely an unexpected surprise. Engineering prototypes must be made, and two must be made at the same time. Chang Haonan glanced at the fragmented remains of the pod on the long table not far away: Lets make a compact version according to our own design, and then reproduce an American oversized pod in its original size. I want to see whats wrong with it (End of this chapter) Chapter 249 Americans always like to compromise Chapter 249 Americans always like to compromise ?? Just as Jinling Electrical Engineering Institute 14 has thought of ways to overcome the insufficient performance of available components and started trial production of engineering prototypes, the China-EU multi-field negotiations that have been going on for more than half a month have finally come to an end. After all, the tone has been set, and the entire negotiation process has been smooth for both parties. The results of the negotiations that Chang Haonan led before leaving have even begun to show their influence After suffering a moderate setback in Ho-kyung, Ms. Anne Valette, the EU representative sent by the Joint Aviation Authority (JAA), did not even wait for the end of the negotiations before choosing to return to Brussels with Colombo, and then quickly Taking over the negotiations between JAA and FAA. ?Facing China, I am submissive, facing the United States, I strike hard. In fact, the European side has been quite passive in previous confrontations. The previous head of delegation was also sent by JAA, but this person specialized in business negotiations and had almost no understanding of aviation technology. In addition, the other party occupied In order to maintain the moral high ground of aviation safety, they once chose to resort to procrastination, hoping to wait until the heat of the crash had passed before bargaining with the FAA. ??However, the Americans are not just for nothing. After discovering this, they quickly started their propaganda machine. For a while, major North American media and even some European media influenced by Wall Street capital began to publicize this matter overwhelmingly. During this period, Europe also tried to launch a counterattack in the media field. The BBC and France 2 urgently produced a documentary to report on the Valuje Airways Flight 592 accident that occurred last year and shocked the United States. ?The original intention of this behavior is to show the audience that "your FAA is not a good bird when it comes to aviation safety. The air crashes caused by neglect of management are much more serious than our JAA." However, the operation was so fierce that although it did have a certain effect in the first few weeks, the situation soon turned into shooting itself in the foot. Because as early as last year, that is, in August 1996, three months after the crash of Valuje Airways No. 592, the then FAA Administrator David Hinson, who was born in the Elephant Party, had already resigned. The acting director who succeeded him, Jane Garvey, was a donkey party member. ??And the latter was unable to obtain a formal appointment at this time due to the obstruction of the Xiang Party. As both a public enemy and a private enemy, Garvey was clearly happy to step on his predecessor''s heels. As expected, she quickly stood up and said that it was precisely because of the painful lessons brought by that accident that the FAA learned a lesson and began to pay more attention to civil aviation safety. The whole world should also take Valuje Air as a warning and put everything in place. The possibility of causing a safety incident is nipped in the bud. There is no mention of JAA in every sentence, but everything is JAA ??We sacrificed a director because of the plane crash, do you have to think about it too? Even worse things are yet to come. As the incident gradually unfolded, some TV stations began to say that Valuje Flight 592 proved that McDonnell Douglas''s passenger aircraft had design and safety hazards, and that Boeing''s merger with McDonnell Douglas was not to monopolize, but to allow aircraft design and manufacturing The former, whose quality is excellent, integrates the civil aviation industry throughout North America to improve the overall safety of the civil aviation industry. JAA was shocked from top to bottom by this extremely shameless argument. ?However, having lost the advantage of their right to speak, they can only watch as more and more people begin to recognize this statement. ?If this trend continues, in a month or two, opinions supporting the merger of Boeing and McDonnell Douglas will probably become mainstream in Europe. The European Union, which is almost desperate, even thought about cooperating with the troubled Russians. Unfortunately, the dry and cold Russian climate is very difficult to form supercooled clouds. Therefore, although the sky over Lake Baikal may be the coldest after the Great Lakes, Ice flight is a holy land, but they really don''t do much research in this area. In short, by the time Valette finished his negotiation mission with China and returned to Europe in mid-March, JAA was already overwhelmed by these matters and almost ran out of room for maneuver. So she can definitely be regarded as taking orders in danger this time. In fact, at the beginning, the negotiating delegation sent to China did not have high expectations. After all, even with the endorsements of Colombo and AgustaWestland, few Europeans would believe that China, which had never been able to build a serious passenger aircraft before, would surpass them in a segment that has received little attention, such as aircraft anti-icing and de-icing. Even ahead of Americans. Even Valette himself didnt believe it before he personally boarded the Ma-60 and flew into the extremely harsh supercooled clouds and witnessed the entire process from icing to safe de-icing. But now that she has returned to Europe, she is completely different. Perhaps inspired by Chang Haonan''s negotiation methods, the newly appointed Valette changed his past JAA delegation''s avoidance of the important and favored the light. He was directly at the negotiation site and under the lens of countless media, he took out a document on improving aircraft anti-icing safety standards in an all-round way. upgrade standards. After the accident at the beginning of the year, JAA teamed up with a number of authoritative scientific research institutions to urgently launch an in-depth research project on how aircraft can maintain flight safety in an SLD environment. This is a new standard based on research results, and we hope to implement this more advanced solution around the world, at least in Europe and North America. Subsequently, Valette opened the first page of the standard and showed the dense charts and figures under the camera. It seems that he is preparing to announce the contents on the spot. This time it is the turn of the FAA delegation on the opposite side. In fact, research on the impact of SLD environments on flight safety is still in its infancy, let alone how to ensure the flight safety of aircraft in SLD environments. The reason why we have been using this thing to exert pressure is that we have realized that Europes research level in this field is far inferior to our own, and we cannot figure out their true intentions. So although the FAA has been using the media, it has never actually announced the specific content of its requirements. It is to leave a room for compromise when the time comes. But in their eyes, Valette''s move was like holding a bag of explosives and preparing to die together. ??If it were really mandatory for all aircraft to pass the icing simulation test flight in the SLD environment, no matter whether Boeing or Airbus, it would take at least five to ten years, and they would definitely not be thinking about launching any new models. So, when it comes to this, it is the Americans who are the first to give up. They changed the subject before Valette could speak and quickly adjourned the meeting. (End of this chapter) Chapter 250 Improved JH-7 inspired by Chang Gong Chapter 250 The improved JH-7 inspired by Chang Gong ?The dramatic changes in the negotiation situation caught everyone except those familiar with the matter by surprise. On the other side of the ocean, Director Garvey, who had been re-elected early due to the pressure of public opinion, found his immediate boss overnight. Rodney Slater, the newly appointed Secretary of Transportation only half a month ago, reported the situation to the latter. Has the delegation confirmed the contents of that standard? Slater, who has only been in his new position for half a month, is still in the process of getting familiar with the work and is obviously unprepared for it. The JAA declined to provide us with a complete version of the standard, but there is an outline containing all key elements. ?Garveys face looked a little haggard. After all, she was also picked up from the big bed in the mansion by her subordinates: "They increased the original level 3 climate conditions to level 4, requiring all civil aviation aircraft registered and operated in Europe to pass the newly established level 4 icing test. Our people have read the content of the level 4 standard. , the evaluation is that Europeans are completely crazy..." Higher than our current standards? Slater asked in disbelief. ?Garvey, who was sitting opposite him, nodded: Much higher. Taking the most intuitive supercooled droplet diameter as an example, the current test standard is greater than or equal to 40 microns, and the level 4 standard they set requires greater than or equal to 100 microns. Is it possible that they are also bluffing? "It''s unlikely. Although the outline is not complete, it also contains a lot of technical content such as feasibility analysis and risk assessment. After our engineers read it, they determined that at least they were not making it up out of thin air. It should be Really well researched. The atmosphere was deadlocked for a while. In the past few months, there should be no European models conducting ice tests in the Great Lakes region, right? After a few minutes, Slater asked again. No, the last European model that completed trials with us was the A340-313, which was completed early last year. ?Although he had only just officially taken office, Garvey was already well aware of these matters. After answering this question, she almost immediately realized what the other party meant How do Europeans do research? We cannot rush this matter. It is best to find out the details of JAA first. The bottom line given by Boeing and McDonnell Douglas is that the merger operation must start before the end of this year. So we still have time. ??Although Slater is not familiar with the business of the Department of Transportation, his personal ability is still there, and he quickly provided a relatively stable solution. Subsequently, in order to reassure his subordinates, he revealed another secret to them: "In addition, Minister Kanter (Ministry of Commerce) also specifically told me about this matter before. He said that other arrangements have been made. If nothing else, China and Europe will form a temporary alliance to oppose mergers and acquisitions. , should be broken down, or at least weakened, by July this year. If it can be like this, that would be great. Garvey looked overjoyed when he heard the news: "The most troublesome thing at the moment is actually that Huaxia, which has huge market potential, and Airbus, which is developing rapidly, are mixed together. They need each other and have the same interests. This makes it very difficult for us. If we can separate them, the difficulty of defeating them will be different. It will be much smaller. ?The latest progress in the negotiations between JAA and FAA immediately became the headlines of major media. The news naturally spread back to China quickly. However, for the vast majority of Chinese people at this time, airplanes and civil aviation are too far away from them. After all, most people have never seen what an airplane looks like up close in their lives, let alone flying or building an airplane. . Hence, it has not attracted much attention in society. But for those who participated in the negotiations and development testing throughout February, this is definitely an event worth remembering. Hua Xia Aviation people, for the first time, relied on their own strength to have a direct impact on the development of the world''s aviation industry. We are no longer a dispensable force in the aviation industry, but will soon become one of the players eligible to enter and share the pie. As the work in Haojing gradually comes to an end, the negotiators and technicians who gathered in this central city last month are preparing to return to their jobs. But Yao Mengna found Du Yishan at this time. Teacher, I apply to stay in Institute 603 for a period of time. ?This request made the latter, who was already packing his things, stunned for a moment: Tell me what you think? "Here at the 603 Research Institute, there is an improvement plan for the JH-7 aircraft. The project has been completed. During this period, I have had some contact with Comrade Tang Changhong, the chief designer of the project, and learned that their ideas for improving the aircraft are similar to what I did in 601 last year. The parts Im involved in are relatively close, so there should be room for me to play a role. Yao Mengna was obviously not impulsive, but had already done some research on the work she planned to complete. I know that the Air Force and the 603rd Research Institute want to develop an improved version of the JH-7. In fact, the project application has been pending with the head office for several years. ?Du Yishan stopped packing his things and sat on the chair next to him; "But as far as I know, this model uses a turbofan 9, which is a purely domestic Spey MK202 engine, and there is no substitute at all. And because the power has not been available, modifications to the aircraft itself have been delayed. Lao Feibao was a model funded by the Navy. Later, the Air Force thought it had good performance and wanted to install it, but many indicators did not meet their requirements, so this improvement plan was created. ? Its just that at that time, even the Flying Leopard, which was already in service in the Naval Aviation Corps, could not find enough spare parts to maintain the engine. It was impossible to build a new aircraft, so it was shelved. ?Du Yishan is mainly worried that his students will be cheated. But Yao Mengna still insisted: "Teacher, you are right. This project has indeed been in a state of almost stagnation before. However, the Seiko project launched by Junior Brother Chang at the 410 Factory last year pushed forward the progress of Sibei''s localization. Later, we are also preparing to develop the turbofan 9 The above has verified some technologies of the Taihang project, so General Manager Tang is relatively optimistic that some improvement plans will be tested now. Is that so? In the past six months or so, Du Yishan has indeed not paid much attention to the situation of the JH-7: So, do you know what the next specific plan is for Xiao Tang and the others? He pointed to another chair next to him, indicating that he could sit down and speak slowly. "The 603 Institute and the 172 Factory are now relying on new processing technology to carry out mid-term upgrades for a large number of old JH-7s whose engines are in the first overhaul period. They took this opportunity to coordinate with the military to upgrade two relatively new aircraft from the South China Sea Fleet. airplane." Yao Mengna also took the opportunity to sit next to Du Yishan: "The changes currently planned include the introduction of a serrated design and slats on the leading edge of the wing to improve maneuverability in low-altitude flight, equipping the 1553 data bus to upgrade the past centralized fire control program to a bus-decentralized fire control, and upgrade The cockpit structure improves the pilots visibility and increases the aircrafts ability to receive fuel in the air. In this case, it is indeed the work you did in Shengjing... ?Du Yishan was obviously somewhat convinced. ?Seeing this situation, Yao Mengna quickly continued to add: More importantly, they are preparing to fully use digital design and manufacturing technology from scratch on this improved model for the first time, and they need manpower to help complete modeling, aerodynamic and structural analysis and other tasks. This sentence obviously worked. Digital model building is really your strength. After thinking for a moment, Du Yishan finally nodded: Then if you really want to participate, its not a bad idea to stay in Haojing for a while. ?However, he then continued: But Xiao Yao, there is one thing that I need to tell you. "You say." If nothing else happens, Xiao Chang will receive a grand prize in two months. The topic was suddenly brought to Chang Haonan by Du Yishan: I was planning to find a reason for you two to have a holiday together after he comes back from Jinling. ?Especially the second sentence at the end was already an explicit match between two people, which made Yao Mengna blush a little. "teacher" Du Yishan waved his hand and interrupted his student: "I will speak frankly on this matter." Everyone now, even if they only know a little bit about the inside story, knows that Xiao Changs future is limitless. There are already many units that dont even pretend to be pretending, and have begun to openly grab people. So Yu Gong, I hope I can find a way to keep him in Beijing Airlines, and you should be the peer with the closest relationship with him, Yu privately ?He glanced at Yao Mengna next to him: You dare to say that you have no idea about Xiao Chang? I only learned about it in the past two days. This time I went to Jinling to do a project, but there was a senior researcher from the Chinese Academy of Sciences with him. She was very young and female. When it was time to talk, Yao Mengna, who was still a little shy, calmed down: I know her name is Xu Yang, from the Institute of Computing Technology. ?This answer was completely beyond Du Yishan''s expectations. Then you still... The old academician looked shocked. Teacher, it is precisely because of this that I chose to apply to stay in 603 to work on projects. Yao Mengna looked at Du Yishan calmly: Even if Junior Brother has the idea of ????finding a partner, do you think that with Junior Brothers character, can I influence his choice by staying next to him? One sentence stopped Du Yishan. Although he had a harmonious relationship with his lover, like most people of that era, he actually got married first and then fell in love. As a person born in the 1920s, he must admit that he does not understand much about emotions. Love is not about two people staring at each other, but looking in the same direction. ??When the word love was mentioned, Yao Mengna''s eyes were still a little dodgeful, but her tone was very firm: Teacher, although this is difficult, I have to look in the same direction as him. (End of this chapter) Chapter 251 technology for technology Chapter 251: Technology for technology Like almost everyone in China, Chang Haonan learned through TV news that the negotiations between JAA and FAA had reached a deadlock while taking a rest after eating. Under the previous working conditions, everyone definitely didnt have much time to watch TV, but after the two pods were transferred to the manufacturing process, they also had a less busy life. For this incident, the 7pm news on this day was specially extended by 5 minutes. ? Judging from the situation mentioned in the report, the Americans, who had always had an aggressive attitude and wanted to make the investigation results public as quickly as possible and revise aviation safety standards based on the cause of the accident, suddenly began to think twice. ??For him, who participated in almost the entire negotiation process, he could naturally tell at a glance that this was because JAA, who had received the confidence buff, caught the opponent off guard. But for the other people in School 14, there is nothing fishy about it. ?However, immediately after this seemingly unremarkable news, there was a piece of news that could be called explosive. A package agreement on technical cooperation in the aviation field has been reached between China and the EU. ??This is not the simple "cooperation" in which China paid for foreign countries to help with research and development, as before, but a true "cooperation" in which each takes what he needs. ?Due to time constraints, it is of course impossible for the report to mention the entire content of the agreement between the two parties, but it includes the two most critical parts. That is to say, the two parties will jointly establish an aviation meteorological research center to enhance the safety of aircraft in harsh weather conditions, and Airbus will build its planned "Asian Final Assembly Center" in China. The project location has nothing to do with aviation manufacturing. The construction of the factory buildings and supporting facilities were all completed by Huaxia. Construction of the final assembly center will start before December 31, 1999 at the latest. After completion, it will be jointly managed by China Aviation Industry Corporation and Airbus. It is expected to reduce the cost of passenger aircraft products sold to East and Southeast Asia by approximately 6% to 8%. . The mutual recognition of regional aircraft airworthiness standards between CAAC and JAA did not appear in the news this time because the matter is of great importance and there are still some detailed technical issues being discussed. ?However, even the part that has been revealed so far, combined with the TV picture of Ding Gaoheng, representatives from JAA and Airbus gathered around and signed the contract happily, is shocking enough. ?At first glance, outsiders might think that this is similar to the situation of the McDonnell Douglas MD82 final assembly line established in Hufei more than ten years ago. ?However, as long as you are a little knowledgeable or a little sensitive, you will find several key points behind the news. ?For example, this time it is no longer the Civil Aviation Administration of China that comes forward to negotiate and sign agreements with the European side, but the Commission of Science, Technology and Industry for National Defense. In other words, the department responsible for planning and coordinating the development of the civil aviation industry in China has been officially switched. ??If there are more discerning people, they will realize that placing the Airbus Asian final assembly center in China, although it can reduce costs to a certain extent, will definitely benefit China more overall. The European side will definitely not be charitable. Any agreement that can be reached must have parts that are beneficial to both parties. Hence, the only possibility is that the previous content of cooperation in building an aviation meteorological research center is actually more beneficial to Europe. This is a great thing. In the past twenty years, including Chinas own people, whenever they mention industrial advantages, it is nothing more than two repeated points: huge market potential and a large number of labor forces. When it comes to cooperating with foreign countries, these two trump cards come back and forth. Basically, there is no bargaining power. We can only engage in market exchange for technology where the initiative is in the hands of others. Of course, it is foreseeable that if Airbus aircraft are assembled domestically, they will have a greater advantage than Boeing aircraft assembled in Seattle, thereby gaining more market share. However, this kind of share growth that is completely in line with market rules is essentially different from the content in past agreements. In the framework of market-for-technology, China must ensure that the sales volume and profits of foreign products do not fall below a certain target. ??If this requirement cannot be met, money must be spent directly from the finance to make up for it. Pretty overbearing terms. But often you have to sign even if you dont sign. As a result, this time, the agreement reached by the two parties did not mention the market share part at all, and there was no mention of "market for technology" in the report. ?Every word or sentence in the 7pm news was not randomly determined. So, many people must have begun to wonder about the changes in the situation behind this.??????Speak up, Chang Gong. ?Guo Lin, who was also watching TV, asked Chang Haonan who was sitting next to him: Some time ago, several key members of our 14th institute suddenly received an order to go on a business trip to Haojing for a period of time. Is it related to this matter? ?Although Dianke Group is not a member of the aviation industry system, the relationship between the two is undoubtedly very close. The modification of the electronic equipment of the H-6AIT involved the participation of many electrical engineering engineers, probably the people Guo Lin mentioned. So be it. Chang Haonan nodded: "This is a once-in-a-lifetime opportunity. We currently estimate that we can lead the world in the field of aviation meteorological safety. However, the JAA happened to be very troubled by this issue, so this agreement can be signed like this." smoothly." ?? Today is no longer the era of secret diplomacy two hundred years ago. Things like negotiations need to be kept secret during the process. Now that the agreement has been signed, there is nothing that cannot be said as long as it does not involve specific technical details. This final assembly center...is located in Shanghai again? Guo Lin also has some knowledge about aviation matters. After Boeing announced its acquisition of McDonnell Douglas, it was obvious to the naked eye that the MD90 model had no development prospects, so it was logical to think that it was intended to be given to Hufei. The manufacturing plant needs to find a new home so that it won''t fall apart because it can''t find orders. "No, the specific location has not been decided yet, but in short, in order to prevent some people from deceiving the superiors and affecting the development of our own domestic aviation industry, we must choose a place where there has not been much aviation industry layout to build a new factory. " Chang Haonan learned during a meeting at Sanzuomen a few days ago that the site selection principle he told Ding Gaoheng had been finalized by higher-level leaders. Completely starting over? Thats a big project. Xu Yang sat across from the dining table and could only see the TV screen through a somewhat awkward posture. Fortunately, the news had ended, so she turned back: When I was in school at Berkeley, my mentor and I went to McDonnell Douglas factory in Long Beach. If we wanted to build a production base like that from scratch, I think it would be very difficult to do it in less than 5 to 10 years. ? Berkeley and Long Beach are both in California. As a PhD student in the field of control engineering, it is normal for Xu Yang to have the opportunity to visit. "There is no way. The lessons learned from the McDonnell Douglas project were too painful. At that time, some people thought that having this project was enough, so they threw away all the money they had saved in the past to build a new system that was in line with American standards. The result is now There are chicken feathers all over the place. Chang Haonan, who was playing with chopsticks in his hands, sighed and replied: "Shanghai Aircraft Corporation, as the currently designated independent industrial base for large aircraft, must not be tortured like that again. The equipment, workers, and management can''t stand it. Rather than bothering to compete with those ''own people'', we might as well simply This will completely eliminate their desire to guide foreign capital to occupy the magpie''s nest." There are actually such people? Unlike Chang Haonan and Guo Lin, who have been on the front line of the project for a long time, Xu Yang''s work experience can be called simple. After graduating from Berkeley, he returned to the Academy of Sciences. Before meeting Chang Haonan, he did mostly basic research, even the computer room door. They dont really need to publish it, so they naturally dont know much about the inside story of these industries. Where is this going Chang Haonan waved his hand: "But let''s not talk about it for now. In short, we didn''t plan to build a factory the size of Long Beach in one step this time. We first kept the aircraft assembly business in our hands. As long as Airbus has experienced our In terms of production efficiency and quality, more parts production will definitely be transferred later, and it will not be too late to slowly expand the scale by then. " ?After hearing this answer, Guo Lin on the side suddenly realized something incredible: Chang Gong, do you think our production efficiency can be higher than that in Europe? This matter had basically become a consensus before Chang Haonan was reborn. Did you know that Tesla Motors, which was once on the verge of bankruptcy, counterattacked after the completion of its super factory in Shanghai? There was a sharp contrast... ?But in 1997, few people dared to believe this kind of thing. After thinking for a moment, he gave a relatively conservative judgment: Its definitely not possible at the beginning, but you wont be able to say for sure in a few years. De-industrialization in Europe is now very strong. The impact of this kind of thing is almost irreversible and will be reflected very quickly..." What if the Europeans change their mind midway, just like McDonnell Douglas? After all, there are many dreams and long nights. The construction of this assembly center is not expected to start until three years..." ?Ever since hearing Chang Haonan talk about the concept of bottom-line thinking at the Sandaomen dinner, Xu Yang''s vigilance in this regard has almost increased exponentially, and it even feels a bit like cutting everything into black. Its unlikely. This time its different from McDonnell Douglas and Paragon Peace. Its not a market exchange for technology, nor is it simply spending money to buy technology. Chang Haonan has already considered this issue: "As Dr. Xu said, these two approaches are actually unreliable. If people don''t want to play with you, they won''t play with you. But now we are exchanging technology for technology, not unilaterally asking for others. Airbus wants to You have to think carefully before doing anything. The aviation meteorological research center is going to be built in China. If the agreement is really invalidated, all the investment will be in vain..." (End of this chapter) Chapter 252 When setting up early warning aircraft, we must be prepared for any dangers. Chapter 252: We must be prepared for early warning aircraft Technology for technology ?Guo Lin repeated the concept mentioned by Chang Haonan. In the past, this was certainly something that China would not even dare to think about. But now its done. And its actually a behemoth as famous as Airbus and Boeing. The conversation between the three people was held in the internal kitchen of No. 14. Anyone who can enter to eat here has a high level of confidentiality. In addition, the topic is something that has been broadcast on the news, so there is no special avoidance of other people. So, just as they were about to pack away the dishes and leave, two people who had been sitting in a corner not far away got up and walked over. One of the older ones took the lead and asked: Sorry to excuse you, is this Comrade Chang Haonan? The eyes of the three people were attracted almost at the same time. Yes, I am Chang Haonan, may I ask who you are Academician Wang? Before Chang Haonan finished speaking, Guo Lin stood up directly next to him, and at the same time called out the other party''s identity almost incoherently: "Why do I have no idea...why did you suddenly..." ??Although Chang Haonan and Xu Yang were still a little confused, when they heard Guo Lin''s name, they stood up to show respect. Academician Wang came to our 14th Institute this time to inspect the pre-research status of several new radars. Everything was kept simple and no one not involved in the project was notified. The person following him was Luo Qun, the deputy director of the 14th Institute. He had appeared several times during this period, mainly to express condolences and provide welfare, so Chang Haonan was deeply impressed. You just sit down, Im here to have a chat with Comrade Xiao Chang. As soon as the person known as Academician Wang finished speaking, Luo Qun moved two chairs from the side, and the five people sat back at the table again. It was at this moment that Chang Haonan finally realized the identity of the other party. ? Wang Xiaomo, an academician of the Academy of Engineering, was born in the Electronic Technology Group. Chief designer and general consultant of China''s three future early warning aircraft: Air Police 200, Air Police 500, and ZDK03. At present, he should be serving as the executive vice president of the Institute of Electronic Science, which just matches the title given by Guo Lingang. The status of the 14th Institute within the Electronic Technology Group is similar to that of the 601st Institute/112th Factory within the aviation industry. Many of its brother units were branched off from it during the third-line construction period. Therefore, although Wang Xiaomo is considered to be from the 38th Institute, he was actually in the 14th Institute when he was young. Worked. ?This name was naturally familiar to Chang Haonan, but this was the first time he saw a real person who was less than 60 years old and still in the prime of life, so he didn''t recognize it for a while. Are you...Academician Wang Xiaomo? Even though he had basically confirmed his guess, Chang Haonan still asked out of politeness. "you know me?" ?Wang Xiaomo was a little curious. He asked himself whether his reputation had not spread beyond the electronics system. I couldnt recognize you at first, but Guo Gongs name just now made me guess it. Ive heard stories about the development process of 383 radar before, so I know your name. ?Chang Haonans tone was neither humble nor arrogant, but a few words shortened the distance between the two The 383 three-dimensional radar is Wang Xiaomo''s proud work in the mountains of Guizhou Province. It has also won the first prize of the National Science and Technology Progress Award. Even though he is now considered successful, hearing young people mention this model still makes him feel better. few. ?This is like a father hearing others praise his child. It is impossible to be unhappy. ?Of course, another important reason lies in the person who said this.? ? ? ?It would be impossible to have the same effect if an ordinary engineer from the 14th Institute were here. I had a meeting with Chief Engineer Liang Shaoxiu of Nanzheng 182 Factory a few days ago, and learned about your name, Comrade Xiao Chang, and some other things from him. ??Wang Xiaomo first explained why he could recognize Chang Haonan, and then continued: I just heard you chatting, and it seemed like you were talking about exchanging technology for technology? ?Hearing this question, Chang Haonan calculated the timeline for the development of China''s early warning aircraft as quickly as possible. Obviously, Wang Xiaomo was attracted by the topic of technology introduction. Or, to be more precise, I should have been attracted by Chang Haonans words, It is neither reliable to buy technology with money nor to exchange it with the market. ? It is now March 1997, which happens to be the Ring Project, that is, shortly after the project of combining the IL-76 airframe and the Davidson "Falcon" system for an early warning aircraft was officially established. At present, it is probably in the radar design and production stage after the overall plan is finalized. ??According to the declassified information from previous lives, Wang Xiaomo himself is not so optimistic about this cooperation. He has repeatedly proposed to arrange domestic supporting research and development simultaneously, and cannot pin all his hopes on foreign parties. Later events proved that he was right. In 2000, David unilaterally tore up the contract and stopped the research and development project. ??Although they fully refunded the funds paid by China in advance, even if the losses caused by inflation between 1992 and 2000 are not taken into account, the many years of delay are difficult to make up for. Now, Wang Xiaomo is sitting in front of Chang Haonan, and has already shown his concern. When God gives you a good opportunity, you have to do something. Yes, use our technology to exchange the opponents technology, so that we have a trump card in our hand, so that the opponent dare not flip the table casually. Chang Haonan did not have the opportunity to change the topic, but followed the other party''s question and answered. From what Comrade Xiao Chang says, does it mean that you dont trust the European side? There wasn''t much emotion in Wang Xiaomo''s tone. If it were another person sitting here talking to him, it would probably take a while to judge his stance. But it is not necessary for Chang Haonan, who knows the direction of history. He clearly knew that the other party had already started planning for simultaneous development at this time, so his attitude should be the same as his own. Its a relationship of interest and cooperation. Its not about trust or distrust. Lets be prepared. After all, our aviation industry has suffered losses in this regard before. Of course it is impossible for Chang Haonan to jump directly and say that the Kingdom of David will not be reliable after three years. He can only start from the side: From being a model of peace back then to assembling the MD82 aircraft, we have tried both ways, buying it with money and using the market for it, but the result was a **** blow, losing my wife and losing the army. "So now we have learned from the experience. Although the overall level of the domestic aviation industry is still relatively backward, there is a qualitative change between having and not having it. There is no problem in introducing advanced foreign technologies and concepts, but the principle of walking on two legs cannot be lost. , it is necessary to ensure that independent routes and models are not affected. Wang Xiaomo, who is in his sixties, naturally cannot be as happy and angry as a young man, but after hearing an answer that was almost completely similar to his own, he couldn''t help but feel relaxed, and his whole expression and posture were also relaxed. few. ?Of course, both of them know that this is the end of the topic. ??The tone of the ring project was set in the early 1990s, and even the money had been given out. Not to mention Chang Haonan, not even the chief engineer Wang Xiaomo himself could say that he wanted to terminate the cooperation at this time. This is something that the latter has always been troubled about - Although domestic supporting research and development continues to advance, it is not an established part of the ring project. No project means no money. ??But after hearing what Chang Haonan said about the big airplane walking on two legs, Wang Xiaomo suddenly had a bold idea. (End of this chapter) Chapter 253 High and low matching of early warning aircraft Chapter 253 The high and low matching of early warning aircraft I heard from Engineer Liang that at the end of last year, Comrade Xiao Chang, were you responsible for improving the anti-icing design of the Yun-8J and Yun-8F400 aircraft? From the perspective of others around him, Wang Xiaomo seemed to have suddenly changed the topic to a completely irrelevant direction. But for Chang Haonan, he can almost guess what the other person is thinking. Since it walks on two legs, a completely autonomous model must be developed at the same time. Mobilizing a large amount of manpower and material resources to do simultaneous supporting research and development for the ring project is indeed a duplication of work. Even if the Science and Technology Commission provides support to Wang Xiaomo, it will be difficult to obtain more financial support within the framework of the original project. But let me change my name and say that the cost of a large-scale early warning aircraft based on the IL-76 platform is too high, and the aircraft cannot be produced domestically, so the production quantity must be limited. Now we need to rely on existing technology to design a cost-effective medium-sized early warning aircraft to spread the equipment. You You have nothing to say, right? ?In this day and age, the four words "high cost performance" have an unusual magic power for the military. "Yes, there were flaws in the anti-icing design of the Lao Yun 8 platform in the past. Under low temperature and high humidity conditions, it is easy for ice to form during flight. Once the **** are opened again, it may cause the downwash airflow to interfere with the horizontal tail, resulting in An accident occurred due to instantaneous height loss..." Chang Haonan made a simple gesture in mid-air with both hands, but it was obvious that several electronic engineers who had not studied aircraft design could not immediately understand the specific principles. ?But at least the conclusion is understandable The improved Y8 is now much safer than before. "When I communicated with Comrade Liang Shaoxiu before, he told me that even after installing the radar module, the Yun-8J can still ensure sufficient maneuverability. I wonder if Comrade Xiao Chang can estimate the stability of the Yun-8 platform. Performance, especially heading stability... uh, how much redundancy is there?" Wang Xiaomos question involves a circuit term. Of course, Chang Haonan could understand that he wanted to ask how much modifications the aircraft could endure that would destroy its aerodynamic design. ??However, there is no indicator that can quantify this concept in the aviation field. So he also asked directly: Do you want to transform the early warning aircraft based on the Yun-8 platform? Thats right. ?Wang Xiaomo nodded: "The only large aircraft that our country can produce completely on its own now are the Y-8, the H-6 and the H-5, but what about the latter two... The H-6''s magazine is too small and it is impossible to arrange equipment and personnel inside, and the H-5 is too early It has been discontinued, and the performance is really not good, so the only possibility is a Yun 8. " Even though there were only five of them left in the canteen, it was inappropriate to talk about the early warning aircraft here. So a few people, led by Luo Qun, went to a small conference room on the top floor of the administrative building. I wonder if Comrade Xiao Chang has ever heard of the ring project that our country cooperates with the Davidic Kingdom? After sitting down, Wang Xiaomo asked first. "coming" Chang Haonan thought that he finally let the other party bring the topic to this point. Although he had made several rounds of predictions just now, they were all done in his own mind. From the perspective of outsiders, he did not necessarily know much about the early warning aircraft. So you still have to pretend at this time: I just heard something, please tell me. At this time, Guo Lin looked around and found that other than himself, everyone in the conference room was either a leader or a guest, so he had to get up and pour a few cups of tea, and handed them to the other people. "Well... this matter started in 1992. Affected by the Gulf War at that time, the superiors approved a total budget of 1 billion US dollars. They wanted to find the David Kingdom to introduce their Falcon phased array radar technology. Several of our own early warning aircraft came out..." Subsequently, Wang Xiaomo spent more than ten minutes introducing the ins and outs of the entire early warning aircraft cooperation project to Chang Haonan and Xu Yang, who were unaware (at least that''s what he thought). One billion U.S. dollars? Change to 4 aircraft? Even Xu Yang, who had seen a lot of the world, was also shocked by this number. ?Including Chang Haonan, he was a little stunned when he heard this number now. In his previous life, he had heard about the US$160 million advance payment and liquidated damages, but he didn''t actually have a very intuitive concept. ?Now, after doing so many projects in the 1990s, I realize what a terrifying amount of money this is. An aircraft with a unit price of US$250 million. This was the mid-1990s. The two modern-class destroyers purchased from Russia last year have a displacement of nearly 8,000 tons and come with a lot of technical information. Each ship only costs 400 million US dollars. J-7F, the R&D expenditure of the entire project is less than 10 million US dollars. Although the country''s foreign exchange reserves are no longer as stretched as they were in the 1980s, they are definitely not wealthy. The allocation of such a large sum of money at one time is indeed enough to show how much the 1991 war brought to China. . "The price is indeed relatively high, but there is nothing we can do about it. At that time, our technical foundation was worse than it is now. The only countries in the world that can sell our early warning aircraft technology are David and Russia. But Lao Maozi''s A50U is a machine-sweeping radar after all, and It was not that advanced, and coupled with some tendencies from above, I finally chose the Kingdom of David. ?Wang Xiaomo picked up the cup and took a sip of tea: "And if we can really replace these four aircraft, the 1 billion will be just 1 billion. After all, the large early warning aircraft is strategic-level equipment. The money is not wasted. What I worry about is that others are playing tricks with us and taking advantage of this The project destroys our independent development route. If someone breaks the contract directly, even if they compensate us a sum of money, we will not be able to get back the lost time. " When he heard this, Chang Haonan almost wanted to stand up and applaud. They all guessed correctly. ?In the original timeline, China''s radar industry was able to explode at the beginning of the 21st century, which was absolutely inseparable from this old man''s keen foresight. ?He overcame all difficulties and still persisted in the path of domestic supporting research and development. Even in 1998, another IL-76 aircraft was obtained at a low price through some channels, and preliminary verification research on the modification of the early warning aircraft platform was simultaneously started in China. This was the miraculous efficiency of the Great David''s default in 2000 and the refusal to deliver the first early warning aircraft, which had almost completed its transformation. At the end of that year, the Air Police 2000 project was completed and officially put into service with the army in less than 7 years. Afterwards, the United States assessed that the Ring Project probably delayed Chinas early warning aircraft project by 3-4 years. ?With no one cheating to help, this can be regarded as minimizing the loss. ? Its just that in this life, Chang Haonan is confident that the losses in the past few years will no longer exist, and even the world-leading air police series models will be released ahead of schedule! Judging from the past experience of our aviation industry, your concerns may be justified. ?Chang Haonan gave the other party a small compliment. Thats why our Electronic Technology Group is thinking of using the existing domestic technical strength and combining what we have learned from others over the years to develop a lower-grade medium-sized early warning aircraft in parallel. "In this way, it would be best if the Kingdom of David doesn''t cause any trouble. Our early warning aircraft will be used as a supplement to the ring project. If something goes wrong, at least there will be a model of our own that can cause trouble. When Daliang comes, he wont be unprepared at all. Until now, all developments have been within Chang Haonans expectations. However, Wang Xiaomo then changed the topic and lightly tapped the table with two fingers: "That''s why I went to see Comrade Liang Shaoxiu before to see if Yun 8 had potential in this area, and he recommended you to me, saying that there should be only one comrade named Chang Haonan in the country who could give a confirmation in a short time. conclusion." "Originally, I was planning to go to the capital after leaving the 14th Institute, but I happened to meet him here today." (End of this chapter) Chapter 254 Air Police 200, wedge tail antenna Chapter 254 Air Police 200, wedge tail antenna ?Although what Liang Shaoxiu said was not wrong, this plot development was something Chang Haonan never expected. ? It seems that due to word-of-mouth spread among aviation industry insiders, the speed and scope of his reputation are beyond imagination. ?This is also a good thing. The higher his reputation, the easier it will be to achieve the goal he set at the beginning of his rebirth. Besides, as a normal person, Chang Haonan''s mood naturally improved a lot after hearing others make such comments about himself. As for Wang Xiaomos problem... For him, this is not even a problem. After all, the Air Police 200 in the previous life was designed on the basis of the Y8 III platform. Now, after a round of additional improvements, the performance of the Y-8F-400 in all aspects, especially safety and low-speed maneuverability, far exceeds the former. Naturally, it is more suitable as a special aircraft platform including early warning aircraft. Of course, if the plan that Chang Haonan designed with Ding Gaoheng can be completed normally, then after entering the new century, China should be able to complete the design improvement and localization of the Tu 204/214 passenger aircraft. By then, there will be no need The veteran of Yun 8 continues to take the lead. Hence, there should not be as many models using Category III platforms as in the previous generation. ?But these are all things for later. At present, we can only consider building a dojo inside the snail shell of Yun 8. ?From the perspective of hindsight, the design of the Air Police 200 is not perfect, and there are still many areas that can be improved. This also leaves room for Chang Haonan, who is not satisfied with simply replicating previous designs, to play. The only thing he needs to determine is the current level of China''s radar technology. The electronics industry is already developing at a fast pace. Just because the 14th Institute of Electronic Science and Technology in 2002 was able to build an early warning aircraft radar does not mean that the 14th Institute of Electronic Science and Technology in 1997 could also do it. Therefore, after a brief hesitation, Chang Haonan still did not take care of everything and chose a relatively cautious response: Although I am very grateful to Liang Gong and Academician Wang for your trust in me, I definitely need some more detailed information before I can make a judgment on this matter. After all, the core of developing early warning aircraft is radar. The Y-8 platform does have considerable modification potential from a structural and aerodynamic perspective, but whether it can be implemented depends on whether the Electronic Technology Group can come up with a sufficiently compact radar. " At this point, he paused for a moment and then added an example: For example, a disc-shaped radome with a diameter of more than ten meters like the ring project you just mentioned cannot be installed on the Yun-8. It is too big. ??Although he did not receive any direct guarantee, Wang Xiaomo still sensed a very positive meaning from Chang Haonan''s tone and attitude. It shows that the feasibility of modifying the early warning aircraft is actually very high in the latter''s mind. It is only because of the instinctive rigor of engineers that they did not give a direct conclusion. ?This made Chang Haonans evaluation in Wang Xiaomos heart even higher After all, he is an academician of the Electronic Science and Technology Group, and he has not intuitively felt the other party''s abilities like Du Yishan and others. ??Although he has Liang Shaoxiu''s endorsement, after meeting him today, the young academician still felt a little guilty because of the young man in front of him. ?Engineering is not the same as theoretical research. On the one hand, it requires experience, and on the other hand, it also requires a calm mind. Both of these often need to grow slowly over time. A bit like doctors and teachers, an image that is too young always makes people feel unreliable at first. Now, Chang Haonan has at least proven that he has no shortcomings in the latter aspect. Trust is built step by step in this way. This is what I think about the design of radar antennas. Wang Xiaomo took out a few pieces of paper from the briefcase he carried with him, obviously prepared: "Based on our current technical level, in order to ensure that the radar has a detection range of about 300 kilometers for targets with an RCS of 5 square meters, about 2,000 T/R components are needed. Uh... Xiao Chang, what should you know? Is it called T/R component? ?Seeing Chang Haonan nod, he continued: "Combined with the packaging process, if you want to arrange these two thousand T/R components on an array, the size must be 8.5*0.6m. In this case, as you just said, the disc radome and The three-sided array structure will definitely not work. Speaking of this, Wang Xiaomo turned over the calculation of the antenna size on the first page, revealing the overall plan concept on the second page. As expected, it was exactly what Chang Haonan was familiar with. ?But he still had to pretend to be slightly surprised: Is it a balance beam antenna? "Yes, in fact, the Saab 340 early warning aircraft that the Swedes first flew two years ago already used such a structure. Although there are 60 blind spots directly in front and behind the aircraft, the antenna can be installed vertically on the aircraft. The entire antenna structure The weight can also be reduced to less than 1 ton, which should be more convenient for your aircraft design department. " If an 8.5-meter antenna is installed like this, it should be acceptable. ?Chang Haonan saw that the heat was almost there, so he was ready to reveal the more complete plan: But I have a slightly different idea. Sure enough, Wang Xiaomo showed an interesting expression: "Tell me." Actually, I also paid attention to the situation of some Saab 340s at that time, so I did some calculations in my spare time. ?Chang Haonan picked up a pen from the side, and at the same time, Guo Lin also placed a piece of paper in front of him. Hand the paper to the boss.jpg There is no such thing as paying attention to the Saab 340AEW. This model first flew in 1994. At that time, Chang Haonan had not yet been reborn. He was just a sophomore who worked hard but had average talent. ??Its just that this kind of thing is obviously what he said. First of all, even in terms of the balance beam design, Saabs solution is very poor. They chose a radar cabin bracket solution that has the greatest adverse impact on the aircraft. As he spoke, Chang Haonan drew several different radar installation methods on the paper with a large stroke of his pen. The yaw stability derivative of the plan A bracket selected by Saab 340AEW is positive and has an unstable effect, but this situation will not occur in the other three plans. "But the point I want to say is not this, but this type of balance beam antenna. No matter how it is designed, it cannot avoid the bracket causing side wash at the vertical tail, interfering with the direction of the vertical tail flow, and at the same time, the blocking effect of the bracket is reduced. Regarding the incoming flow speed on the vertical tail, it can be said that the damage caused by this bracket to the directional stability is even greater than that of the radar antenna itself. " Is that so? For those who are not majoring in aviation, this conclusion does sound a bit counter-intuitive at first, but the problem of aerodynamics is like this, and some inconspicuous small places are of great importance. Thats right. ?Chang Haonan nodded, and the movement of drawing lines on his hand was also very fast: "To make up for this loss of stability, we not only need to design two large ventral fins on the tail, but also consider raising the vertical tail part. If it is a large aircraft like the IL-76, that''s it, but the Y-8 has the largest The take-off weight is only 60 tons. After modification, it will have a great impact on the structure. Further adjustments to the airframe will be required, which will be too much work. " "So we might as well open up our minds and simply get rid of this obstructive bracket, connect the radar array directly to the fuselage, and let the antenna itself serve as a supporting structure. This way, the impact on directional stability and the resistance it brings will be smaller. Moreover, a larger array area can be obtained. In addition, a ''hat''-like structure can be added on top of the side-view antenna to install two antenna arrays in the front and rear directions. Although the performance is definitely not comparable to that of the side view, at least it can be considered achievable. 360 full coverage. Although this will still have some impact, it can be offset by adding two ventral fins, and there is almost no need to make major modifications to the overall structure of the aircraft. ?Practice makes perfect when it comes to painting, because during this period he often used similar methods to present plans, so the things he painted now were at least less abstract. At least Wang Xiaomo can understand it at a glance. In fact, the plan proposed by Chang Haonan is basically the "wedge tail" antenna of the previous American E737 early warning aircraft. It can be regarded as a comprehensive upgrade of the traditional balance beam plan. ?The only disadvantage is that the weight of the wedge-tail structure is much larger than that of the balance beam, so it cannot be installed on a platform that is too small. ?However, perhaps the only advantage of the Y-8 as a special aircraft platform is its large load capacity. The Boeing 737 has a load capacity of 16 tons, and the Y-8 can carry 20 tons. A few hundred kilograms more is not a problem at all. In short, if the Air Police 200 can use this design in advance, it will definitely bring about huge performance improvements. Its also good news for pilots. You must know that early warning aircraft are generally not easy to fly. (End of this chapter) Chapter 255 "9910" project Chapter 255 9910 Project ?Wang Xiaomo lowered his head and looked at the new plan drawn by Chang Haonan on the paper for a long time: It is indeed much better than the original balance beam structure. In fact, for electronic engineers like them, the shape of the main antennas is a back-to-back rectangular double-sided array. There is no difference whether the antenna is set up or directly connected to the aircraft body. The main difference between the two configurations is in the aircraft. aerodynamic design. But this novel structure still interests Wang Xiaomo: It seems that Comrade Liang Shaoxiu is right. You have already prepared the overall design of the early warning aircraft. I cant talk about preparation, it can only be regarded as some habitual attention. Chang Haonan put the pen aside, picked up the cup and took a sip of the slightly cold tea: What I just said are still qualitative conclusions. If you really want to start doing project feasibility analysis, you will definitely need more rigorous quantitative calculations. ?This is really not being modest. Before his rebirth, he had not actually participated in the research and development of traditional concept early warning aircraft, but for a period of time he cooperated with the 601 Research Institute in the research of long-endurance unmanned early warning aircraft. Because UAVs do not need to consider the cabin to accommodate personnel, the design logic from the beginning is almost completely different. For example, conformal arrays can be arranged more conveniently. Chang Haonan only did some research on manned-machine platforms at that time. Even made a prediction of the flight performance of the E737 early warning aircraft. ?Now that I think about it, I still regret itif I had known earlier, I would have just chosen the Luck 8 platform, which would have saved me a lot of trouble. The feasibility study must be done. We can prepare it now, and when we find a suitable opportunity, we will submit the project. After confirming the modification potential of the Yun 8 platform from Chang Haonan, Wang Xiaomo was also in a good mood. As he spoke, he quickly organized his manuscripts on the table and put them back into his briefcase: Besides, Comrade Xiao Chang, you are not from the Electronic Technology Group. We distinguish between public and private affairs. This early warning aircraft has not yet been cleared up, and I have no position to ask you to do voluntary labor for us, so Xiao Luo. Luo Qun, who had been hiding next to him just now, was suddenly called by his name and stood up quickly: "arrive!" Your 14th Institute should issue a tender for the aerodynamic and structural performance analysis of the aircraft platform as soon as possible in the name of Guorui Technology. Let Comrade Xiao Chang bid in the name of the research group after he returns. Dont let the comrades in the aviation system suffer. Luo Quns eyes were full of meaning, and he glanced at Chang Haonan opposite him with envy. ??If this kind of preliminary demonstration work were left within them, and they would directly assign people to do it, and at most give some bonuses, how could there be such a big battle? ?But now that Wang Xiaomo has spoken, it is impossible for him to have any opinions on this matter. After all, if you think about it from another perspective, if the Electronic Technology Group in turn works for other brother units, it will not be a waste of work: "yes!" ?Chang Haonan has no reason to refuse. The cost of preliminary demonstration may not even reach one thousandth of the total project cost, but it is a large amount of money for the research team and himself. You can talk about dedication, but you cant just talk about dedication. By the way, Academician Wang, is that a direct negotiation? Luo Qun, who had just sat down, confirmed with Wang Xiaomo. The latter nodded: Yes, the bid invitation process is too long, we have to hurry up. The so-called bid negotiation refers to a non-public bidding, which is completed through one-to-one negotiation between the purchaser and the purchased party. In essence, it is price comparison procurement, while the invitation to bid is a competitive bidding in the general sense. In the 1990s, the Bidding and Bidding Law had not yet excluded this form from bidding. ?Although it is expected to be a "low-cost" model, that is compared to the Torus Project, which costs US$250 million per unit. Early warning aircraft, or early warning aircraft using active phased array radars, are fundamentally not cheap. An upfront R&D investment of several hundred million yuan is required. Even for Wang Xiaomo, the executive vice president and academician of the Institute of Electronic Science and Technology, a project involving this level of funding is definitely not something that can be initiated just by writing a report. ?It''s better to have a name or catch up with something. ?For example, the success of the Ring Project was due to the Gulf War. Chang Haonan, who has been immersed in the military industry system for many years, naturally understands this. ?But actually he had just the right name in mind, but he was a little short on time: Academician Wang, I wonder how efficient we are in producing this kind of phased array radar antenna now? Not very quickly. ?Wang Xiaomo gave the final answer very simply. He now truly regards Chang Haonan as an equal partner: "The production of semiconductor components itself is actually good, because they can be used with other radars, so there is some reserve. However, the packaging of T/R components requires the use of high-silicon aluminum alloy. Now we can only process it through manual milling. The output and yield rate are average. Like the antenna structure you just mentioned, two large and two small four-area arrays, it requires at least 5,000 components. Even if it takes half a year to produce, including final assembly and debugging...8-10 components The month should be relatively safe. ifier ?This answer is indeed somewhat beyond Chang Haonan''s expectations. ?But having said that, it is quite remarkable that the Electronic Technology Group in 1997 was able to build this thing on its own. And this production capacity problem can also explain why in the original timeline, China had the first early warning aircraft using active phased array radar, the Air Police 200, in 2006, but it was not until 2016 that the first type of early warning aircraft with active phased array radar was equipped in batches. Source phased array radar for fighter J-16. ??Wang Xiaomo next to him, although he was eager to get the project approved immediately, but as an elder, he still comforted himself and said: After all, the early warning aircraft is a strategic project, Comrade Xiao Chang, dont be too anxious. Actually...I was wondering if this early warning system could hitch a ride on the 9910 project..." ?Chang Haonan also expressed his thoughts directly. Project 9910, as the name suggests, is a huge project in preparation for the military parade in October 1999. Although for a long time, this name was mostly used to refer specifically to the prototype of the Type 99 tank, in fact, all the equipment participating in that military parade, from aircraft and tanks to clothing, shoes and hats, all belonged to Project 9910 part. For mature equipment, the focus of this project is to ensure supply, but for some models that are under development, being included in this project means that they are on the fast track of development. Many key models have benefited from it in previous generations. Even Wang Xiaomo, who has seen many storms, was also shocked by this idea: Its already March 1997, and there are only 30 months left before the acceptance of Project 9910. This aircraft..." He did not continue speaking, but just looked down at the briefcase in his hand. The meaning is obvious. This aircraft is still in the state of a sketch without even a project. According to his past understanding of the aviation industry system, let alone finalizing it in 30 months, it may be difficult to even make its first flight. Not to mention the process of project approval. Even if we calculate at the speed of special projects, it will always take four to five months, which will only leave about two years for research and development. In fact, if the progress of the radar system can be kept up in time, there should be no problem in the design and modification of the aircraft platform. ?Chang Haonan is still a little unwilling to miss this opportunity. The military parade is definitely the most exciting celebration, especially for those who pay attention to the military. ?Due to limited conditions in the previous life, the most important achievement of the Chinese Air Force in the 9910 project was to establish a decent support system for the Su-27 aircraft, finally allowing these aircraft to transfer from Suixi Airport to other stations for operation. He was ready to make up for this small regret. Not only the Air Police 200, if possible, he even wants to stuff the J-10 and J-11 into it! (End of this chapter) Chapter 256 Find 38 aircraft to rent! Chapter 256 Looking for 38 borrowed planes! ? Wang Xiaomo finally could not resist the temptation and decided to follow Chang Haonans suggestion and try his best to follow the 9910 project. In this case, many things that were not urgent at first become urgent. Comrade Xiao Chang, since we want to take the 9910 project as the goal, then your preliminary project demonstration..." Dont worry about this. After the bidding is over, I can start construction directly in Jinling, and the calculated results will be directly taken to the wind tunnel at Fucheng 29 base for testing, so that the two sides can proceed nearly simultaneously. ?Chang Haonan was naturally prepared. ??He has done this kind of parallel processing of multiple tasks within the limit of time more than once before, and now he is familiar with it. What''s more, from the perspective of the aviation department, adding a wedge tail is not too complicated compared to adding a disc, and does not require frequent docking with the wind tunnel testers. In fact, in the previous life, it only took about 20 months for the Air Police 200 from project establishment to first flight. If it were not for the unexpected air crash, it would have been in service earlier. Although that was done when a lot of technology had been accumulated before the project was established. But now Chang Haonan has more trump cards, which are completely justified. After all, it was just a demonstration before the project started, not a big job, so a few people only spent half a night to determine the overall direction of the matter. For Chang Haonan today, this kind of thing is already familiar and does not require the help of the system at all. Especially the data of Yun 8 itself has been digitally entered by Liang Shaoxiu and others from the 172 Factory. It can be called directly. Just put the T-shaped antenna Just add the two parts of the tail fin and the tail fin, the actual workload is not too much. What''s more, although Xu Yang and the engineers at the 14th Institute of Electrical Engineering have never studied aircraft design, they have learned algorithms to some extent, so they can still help. The most time-consuming part is probably waiting for the results. The current computer performance cannot keep up with the demand. So in the next period of time, we can take advantage of every opportunity to analyze the aerodynamics and structure of the wedge-tailed early warning aircraft - Although some tricks have been used to reduce the demand for hardware performance when designing the pod, so there are no insurmountable obstacles in the trial production process, the electronic jamming pod is a new thing for the 14th Institute after all, and it has never been The packaging technology borrowed from the captured pod still needs to be adapted. Therefore, with the basic design already completed, it is expected that the two engineering prototypes, one large and one small, will still take about half a month to be manufactured. This is because there is no need to consider external aerodynamic modifications and other issues during the prototype stage, which reduces a lot of unnecessary work hours, otherwise it would take longer. In short, a few days later, when Chang Haonan handed over the demonstration report with numerical calculation results and several wind tunnel test data to Wang Xiaomo, who had not even had time to leave Jinling, the first sentence the latter subconsciously asked was: Have you prepared the report a long time ago? Chang Haonan naturally told the truth about this: Thats not true. Although I have been studying this T-shaped antenna for a while, I really started to analyze it only after I communicated with you that day. But its only been ten days? ?Wang Xiaomo looked at the calendar next to him: "No, it took nine and a half days. How come the data in this report is so detailed? I have worked with people from the Aviation Industry Corporation of China before, and it has never been so fast." To put it aside, at the beginning of last year, when we were revamping the No. 713 electronic equipment testing machine, we had to wait for a month just to blow up the wind tunnel. This was the efficiency we achieved after I urged Director Ding many times. Therefore, looking at the old academician in front of him with an expression of "either you are trying to trick me or they are trying to trick me", Chang Haonan felt that he had to explain to the former colleagues (and future colleagues) of the 29 Base who had never met him: "Academician Wang, it''s like this. If you want to do a complete wind tunnel test for a new model of aircraft, it will indeed take several months or even years. Even for a model like No. 713 with minor modifications, it will only take a month. Its normal. "But after all, we are just demonstrating now, and because of the support of my calculation data, the wind tunnel test conditions can be selected more accurately, without having to slowly approach it in a large range as in the past. In a 100-hour wind tunnel, 90 hours may be spent on debugging. Now it may only require 10 hours of debugging, and the efficiency will naturally be higher. ?The No. 713 verification machine just mentioned by the two men is an equipment verification platform that was improved from the Yun-7 and belongs to the 38th Institute of Electrical Engineering. In terms of reputation, it is far inferior to the No. 079 Yun-8 verification platform that later conducted many radar equipment verifications for the J-10 and J-11, and it is even worse than the No. 769 Tu-204 verification platform that later performed verification for the J-20, but it is China''s Beginning in this field. In fact, when Chang Haonan came here today, in addition to handing the demonstration report to Wang Xiaomo, his other purpose was to borrow this plane. And its for jumping in line! So thats it? ??Wang Xiaomo, who knew that the distance between the lines was like a mountain, felt a little strange, but he did not continue to ask further. But he immediately realized a problem. loss! Wait a minute, according to what you said, the wind tunnel that used to take 100 hours can now be completed in 20 hours. Then in the contract we signed before, the equipment fee and labor time fee are... Chang Haonan naturally cannot let go of this kind of problem: Academician Wang, your Electronic Technology Group has a big business, so you definitely wont care if these hundreds of thousands of dollars are not... On the one hand, the contract has been signed and there is no reason to change. On the other hand, the advance payment from Dianke Group has been divided among several units and individuals involved in the work. ?However, Wang Xiaomo never really thought about getting the money back. After joking with Chang Haonan for a while, he turned his attention to the report in his hand: The writing is very skillful, it doesnt feel like its my first time "Bonus, no prizes, I''ve read a lot before, so I can get started faster when I start writing..." Chang Haonan did not dare to talk about other things in his previous life. The hard work of writing reports highlighted his rich experience. Although it was more than 20 years ago, the writing style of the aviation industry system has not changed much, and it can be seamlessly connected. Then he followed Wang Xiaomo''s progress in reading the report and began to introduce the contents. "The T-shaped antenna will cause the cruise resistance of the entire aircraft to increase by about 9%, and move the focus of the entire aircraft backward by about 2.5% of the average aerodynamic chord. However, we can solve this change by adjusting the distribution of equipment in the aircraft, and combined with the tail fin to bring With a resistance of 2%, the economic cruising speed of the wedge-tail early warning aircraft will be about 40-50km/h lower than that of the Y-8 prototype. " "In terms of flight stability, the T-shaped antenna and the ventral fin itself will enhance the directional stability of the aircraft, but the former will also destroy the contribution of the tail to directional stability. Generally speaking, after the modification, the yaw moment coefficient and lateral force The derivatives of the coefficients with respect to the sideslip angle decrease by 0.009 and increase by 0.0005 respectively, indicating that under the action of appropriate ventral fins, the directional stability of the entire aircraft has reached an acceptable state..." ??Although Wang Xiaomo is not a professional in aircraft design, he quickly understood the entire content of the report based on the data charts and Chang Haonan''s explanation. With this report, the probability of project approval will increase a lot. The old academician looked pleased and closed the report again, then put it back into the briefcase with other materials. ?Chang Haonan realized that it was time to borrow the plane: Academician Wang, I have a heartfelt invitation when I come this time... ?Wang Xiaomo, who was in a good mood, was unguarded: "You said, as long as I can do it personally and it doesn''t violate the principles, I can mention it." Ahem Chang Haonan was not polite: We hope to borrow the No. 713 electronic equipment verification machine from the 38th Institute. It will be used probably next week. ?Wang Xiaomos movement of organizing his briefcase suddenly stopped. (End of this chapter) Chapter 257 Come and be my deputy chief engineer! Chapter 257 Come and be my deputy chief engineer! ?The reason why Chang Haonan wanted to borrow the No. 713 electronic equipment verification machine is also very simple. He wants to test the two jamming pods that are about to be completed. Anything that is going to go to heaven cannot be tested only on the ground. ??Moreover, many of the air search and fire control radars that jamming pods mainly face do not have ground search modes. What''s more, pulse Doppler radar also has the characteristic of filtering out low-speed targets. Fixing the pod on the ground and then shining it with a radar will definitely not get any useful data. Therefore, after confirming that the equipment can work normally after being powered on, and that there are no problems with circuit design and programming, aerial platform testing is necessary. Under normal circumstances, everyone is a unit under the Committee of Science and Technology. Although the 38th Institute took the lead in building No. 713 machine, after all, it is a chess game across the country, and others will not be unable to use it. However, what Chang Haonan just said was "it will be used next week." This means jumping in line. Although Institute 14 and Institute 38 belong to the same group and are very close to each other, they still have to settle accounts clearly. Whats more, in such a large industry as Electronic Technology Group, cooperation and competition coexist between different institutes. Under normal circumstances, it is quite difficult to jump in line. ?However, if Wang Xiaomo nodded, the situation would be different. After all, in addition to being the executive vice president of the Institute of Electronic Science, he was also the founder and old director of the 38th Institute of Electronic Science and Technology. Unit No. 713...should be testing a seeker now. What are you going to use it for...?" Academician Wang, you should know that Researcher Xu and I came to Institute 14 this time for the captured pod ?Although this matter is highly classified, Wang Xiaomo definitely has the authority. Of course I know that. ??Wang Xiaomo nodded, the expression on his face revealed some confusion, but there was a bit of surprise in his tone: But wasnt that thing shipped back at the end of last month? Did you repair it so quickly? If the feasibility study report that had just been released 10 days ago was still something that an outsider dared not comment on casually, then this project of researching jamming pods belonged to his old field, and he was fully aware of the implications. How much work there is. What''s more, he has also seen the pod. Although the report stated that "the wreckage is relatively complete," that was obviously based on the standards of a plane crash. ? Judging from the standards of electronic products, it can definitely be called to pieces... So everyone never thought about fixing it from the beginning, they just thought about whether they could research something, preferably replicating the function of creating false targets for PD radar. But according to Chang Haonans words in front of me, is this an extraordinary performance? Hearing Wang Xiaomos speculation, Chang Haonan quickly denied it: Its definitely impossible to repair it. The storage inside the pod has been severely damaged, and many of the components in it are high-end goods that are strictly embargoed by us and cannot be purchased on the market. Such an answer made Wang Xiaomo feel a little disappointed. After all, he had really expected it for a moment. But at the same time, I was disappointed and a little relieved It seems that my understanding of airborne electronic equipment is not wrong. However, this complicated feeling did not last long. Because Chang Haonan said the next sentence: We have preliminary studied the pod, and then modified it according to the existing domestic technical level, and built two with the same function. It is expected to be produced and tested next week. The atmosphere in the room fell into silence for a moment. ?Wang Xiaomo looked at Chang Haonan in front of him with puzzled eyes and muttered in his heart: Is there something wrong with my understanding of the onboard electronic equipment? That thing is actually very simple? ?After a long while, he asked again: Have you always done projects so quickly? "Well" Chang Haonan didnt know how to answer this question for a while: "It''s not bad. It''s not very fast. The main reason is that I have learned some basic theories of control, which happen to match the emergency response logic of the pod. In addition, the work efficiency of the comrades is also very high." At first glance, these words sounded It is modest, but the way he speaks indirectly shows the speaker''s leadership status. In this case, your testing process shouldnt take too long. Wang Xiaomo, who gradually came out of the shock, quickly nodded in agreement: I will contact you right away. You can go to Yanliang for a test flight at any time next week, and the 38th Institute will do its best to cooperate. After all, this is his old work unit, so he still has some respect. ?Chang Haonan quickly thanked him. Then thank you so much for giving us this convenience. There is no need to thank you. These are key projects related to national defense and security. You are not giving yourself any personal gain. ?Wang Xiaomo waved his hand: However, I also have a condition. "You say." When this early warning aircraft project is finalized, you have to come and serve as my chief engineer. ??Wang Xiaomos current wave is also one of the most prominent ones. "ah?" ?This time it was Chang Haonan''s turn to be confused: The project chief engineer should not be you Halfway through his words, he suddenly remembered that because AWACS is closely related to both radar and aviation fields, a unique dual-chief engineer system seems to be implemented, that is, a chief engineer of the Electronic Technology Group and a chief engineer of the aviation industry. As expected, Wang Xiaomo explained: "The chief engineer is indeed me, so I can only grieve you for publicly displaying the title of deputy chief engineer, but you will not be missing in terms of authority. During this time, I have found that it is difficult for people from our electrical engineering background to work in a short period of time. I can understand the needs of the aircraft design itself within a certain period of time, so I will take the lead in planning, and the specific tasks will be coordinated by the deputy chief engineer assigned by both parties. " Before Chang Haonan could answer, he added: "Don''t say you can''t do it. Although I don''t have an aviation background, engineering has its inherent commonality. I''m pretty sure that you are better than at least most of the aerospace engineers I have worked with, and you definitely have this ability. Take up the burden peacefully. Actually, after a very short period of thinking, Chang Haonan had no intention of refusing. No matter how efficient it is, even if the 9910 project is successful, project establishment is still a very troublesome task. It is the end of March. Under normal circumstances, it would take until July-August to officially launch the project. At that time, he already had a bachelor''s degree. ?Mainly before graduating from bachelor''s degree, Chang Haonan actually had a high school diploma. Even if his name is now on it, he is likely to be able to do special things, but being a deputy chief engineer with a high school diploma is still too eye-catching. Its the same as graduating immediately after enrolling for a Ph.D. Its not that its impossible, its mainly that its not necessary. ?Chang Haonan''s current ability to mobilize resources within the Science and Technology Commission system is probably no less than that of a mid-level model chief engineer. ?But its not bad if you have a bachelors degree. Many designers become famous first and then obtain higher degrees. I''m just a little sorry for Liang Shaoxiu who is far away in Nanzheng. In the original timeline, this position should have been his... Okay, I agree. ?Seeing Chang Haonan nodding, the smug Wang Xiaomo became excited: "That''s it. In the project report submitted, I have been temporarily confirmed as the project chief engineer, Comrade Xiao Chang, and Comrade Liang Shaoxiu from the 182 Factory as the first and second deputy chief engineers of the aviation industry respectively. Zhou Qun and Wu Manqing Comrades, how about being our first and second deputy chief engineers in electronic technology?" ?Of course Chang Haonan has no objection. ?The joining of Liang Shaoxiu means that he does not have to be tied to this early warning aircraft project all the time. He only needs to solve some key technical problems. ?Furthermore, although the design of up to four deputy chief engineers has slightly reduced the value of this position, this is still the first time in his two lives that he has received such an opportunity. To say that I am not excited is absolutely nonsense. In short, the flight platform test and the early warning aircraft project were settled together. (End of this chapter) Chapter 258 Jamming pod test! Chapter 258 Jamming pod test! The two pod prototypes were completed several days earlier than previously expected. ?This is not a surprise. After all, anyone who has been Party B knows that when writing a deadline, you must add a period of grace on top of the normal progress just in case. ?Chang Haonan and Xu Yang came to the production workshop from the dormitory area as soon as they received the news. ?Two pods, one large and one small, are lying quietly on the brackets specially designed for them. Although the engineering prototypes are still in a very rough state, they can still give a glimpse of what they will look like in the future. Theres nothing much to say about the large pod. Its just a proportional copy of the captured product, with only components and part of the program code replaced according to Chang Haonans design. The synthetic aperture radar that originally occupied the middle position of the pod has been handed over to another group, and this test does not involve the radar reconnaissance part, so it was replaced with a counterweight block of equal weight and size to prevent The pod was too heavy at both ends and too light in the middle, causing structural problems in the air. The small pod sells much better because it was designed to be carried by tactical aircraft under the wings, so it was designed into a long strip with arcs around it. And in order to ensure compactness, an impact generator with a smaller volume and power was chosen, which was installed at the rear of the pod through two air inlets instead of at the head to avoid interference with the transmitting antenna here. The overall appearance is similar to the K/RKL800 large electronic jamming pod (export model KG800) that was commonly equipped on heavy fighters and bombers in previous generations. The only price is that it cannot be completely powered by itself like that large pod, and needs to be supplemented by a carrier aircraft. ?However, it is not a problem for the J-8C with a power generation of 18kw*2 and the JH-7 with a power generation of 15kw*2. Not to mention the domestic Flanker family, which will have a power generation capacity of 30kw*2 or even higher in the future. Good stuff, good stuff. Chang Haonan patted the pod shell in front of him, which looked a bit like a semi-finished product, and felt quite satisfied. In the previous life, the Chinese navy and air force suffered losses from American electronic warfare equipment in the naval and air confrontation for a long period of time. ?Although they only have one more interference pod now, everything is difficult at the beginning. With the breakthrough from 0 to 1, it will be a matter of course from 1 to 10 or even to 100. By the way, where is Guo Gong? Chang Haonan was just about to call for people to conduct ground power supply and signal input and output tests, but after looking around, he found that Guo Lin was not there. In fact, everyone rushed over temporarily after receiving the news, and many people had not yet arrived. However, Guo Lin usually has food and accommodation at the residence, so he is always the first to arrive when something happens. Today It was a bit strange that I didn''t see anyone else for such a big thing as the pod being offline. Guo Gong...I dont think Ive seen Guo Gong today? Someone thought for a moment and said. I remember that Guo Gong seemed to say two days ago that his younger brother came to Jinling to join him. Maybe he was arranging for family members? Just as everyone was talking to each other, a panting Guo Lin finally appeared at the door of the workshop. Have you all arrived? ??Guo Lin took a look and found that among the more important people, he was already the last to arrive. He couldn''t help but explain: A relative came to the house. He took half a day off today and just came back from outside. Chang Haonan didn''t have much idea to gossip about this kind of thing. After Guo Lin calmed down his asthma, he announced the start of the test. Prepare for the first round of testing, step wave frequency shifting, jammer starting modulation frequency 1MHz, interval 0.4MHz, interference-to-signal ratio 8dB, 10-segment pulse The ground test does not really use a radar to illuminate, but directly inputs a simulated signal into the system to detect the output. Considering the resolution of the detection equipment, in order to facilitate observation, the frequency of 10Ghz is not really used. In fact, it is equivalent to a basic program debugging process, which mainly detects the basic logic and algorithm functions of software and hardware. The process is not complicated, but it is time-consuming. According to the pre-assigned tasks, several staff members quickly began to adjust the settings of the jammer and signal generator. ?Chang Haonan also walked aside, ready to view the waveform displayed on the oscilloscope screen. At this time, I happened to hear the conversation between another engineer and Guo Lin. How are you going to arrange Xiaoyu? From this tone, the two of them should be relatively familiar with each other. Combined with the fact that someone just mentioned that Guo Lin has a younger brother who came to defect to him, it is not difficult to guess Xiaoyu''s identity. Lets find him a job as a helper first, and well see if theres a more suitable job later. ??Guo Lin sighed softly and replied. "Don''t worry too much. Your brother has such a skill as a carpenter. How can he still worry about not having enough to eat here?" Another person expressed relief: "When this period of busy work is over, I will ask your sister-in-law to go to Nanjing Automobile to inquire about it. They said before that the shortage of workers is severe." Its not a matter of whether we have food to eat or not. Hearing the comfort from his friend, Guo Lin had a wry smile in his tone: "He changed his age when he graduated from junior high school when he was 15 years old. He took over from my father and worked in our cable factory. If you really want to look at his household registration, he is actually my brother. He has never left the factory for 14 or 5 years, and now suddenly After receiving the notice of being laid off, I was afraid that he would not be able to change his mind..." Another helpless story under the tide of the times. ?Chang Haonan suddenly remembered the Lao He family mentioned when his parents said they would arrange a blind date for him during the winter vacation. ??Although he has no memory of the name, the experiences of dual-income families should be generally the same. In fact, even many single-income families cannot afford it. In this day and age, it is definitely not possible to support a large family with just one person''s income. At this moment, with a beeping sound, the test officially began. Everyone then devoted all their attention to the data and equipment in front of them. Oh...the quality of this fake target is very high. ??Xu Yang stood behind Chang Haonan, looking at the signal waveform displayed on the oscilloscope, his tone full of excitement. Yeah, no wonder, ground radar and the radar on our aircraft will be fooled..." Chang Haonan nodded: Seven false targets, 10s, 14s, 18s, 22s, 26s, 30s, 34s, and except for the first one which is slightly weaker, all the signal characteristics are stronger than the real target. I am a radar and I am also confused. ?Chang Haonan recorded all the data, and then quickly issued the order again: Prepare the second segment, piecewise linear function frequency shift, starting modulation frequency 1.5MHz, interval 0.4MHz, frequency modulation **** 20KHz/s, interference-to-signal ratio 8dB, 4-segment pulse A completely different signal appeared on the oscilloscope. Different from the large number of false targets just now, this time, the signal peak of the real target was covered up by a dense multi-segment coverage interference. This is a mode that the original pod does not have, and it works well for some radars whose absolute power is not strong enough. ??Xu Yang lightly shook his fist in the airit was she who came up with the idea of ??joining this mode. Reproduction does not mean copying the original, but improving and developing on the basis of the prototype. The ground testing process ultimately lasted a full day. At each predetermined test frequency, the results were very successful. As for more complex tests, since the microwave anechoic chambers of the 14th institute are still under construction, the real results can only be seen in the sky. Lao Guo, prepare to fly to Yanliang! ?Chang Haonan recorded the last data on the paper, raised his head and said to Guo Lin next to him. (End of this chapter) Chapter 259 Nice to meet you, Researcher Xu Chapter 259 Nice to meet you, Researcher Xu Okay, Ill get ready right away! ?Perhaps inspired by the great success of the test, Guo Lin''s depression as he came in the morning had long since disappeared. Although the success of the ground test is only equivalent to the first step in a long journey of thousands of miles, it can be regarded as a good start in any case. China has not failed to make attempts to develop electronic warfare aircraft in the past, and has also developed usable models on the IL-14, Tu-4 and H-5 platforms, but overall they have not been successful. On the one hand, these aircraft are basically equipped with simple clutter jammers, which are already unable to cope with the electronic equipment of the 1980s and 1990s. On the other hand, the performance of these platforms themselves is insufficient and the target characteristics are large, making it difficult to fight with other air force forces. The aircraft cooperated, so a few were equipped to verify the tactics, and then nothing happened. Spears and shields always complement each other. The long-term absence of electronic jamming systems has led to a lack of understanding in the field of anti-jamming in China. The final result is that a few EA6Bs used the simplest injection jamming to generate a large number of false targets and were paralyzed. The air defense of almost the entire eastern coastal area is the "94 South China Air Conditions Abnormal Incident". This incident even led our country to consider introducing a complete "border" campaign-level automatic air defense command system from the recently disintegrated Russia, which could integrate almost all weapons belonging to the homeland defense air force, but in the end the cost was too high. And give up. After that, although the army strengthened training on countering electronic interference, it was difficult for a clever woman to make a meal without rice. Without upgrading the equipment system, what could be done was really limited. In the following two years of frequent confrontations, although there was no There will be big chaos like that in 1994, but generally speaking it will still be difficult to withstand. Just as the previous failure of the J-7 to intercept the E8A was a shame for the aviation industry system, for the electronic technology that produces almost all the main radars of our military, the feeling of being repeatedly played with is definitely not good. They have been looking forward to a turnaround for many years. This time, China will be able to directly obtain electronic warfare equipment that matches the world''s leading level. It can not only cause reciprocal deterrence to the other party. More importantly, after having your own spear, the next step is to forge a stronger shield. The work efficiency of the Flight Test Institute is still high enough. ?That evening, Guo Lin, who called to inquire, received a reply stating that they were ready to send a Y-8 and a Tu-154 to Dajiaochang Airport. As soon as the 14th Institute of Electrical Engineering completed preparations, they would be notified of their departure. I found that the efficiency of the aviation system this year is much higher than before... ?An engineer who was obviously more senior said this after hearing the news: I remember that in the past, this kind of test could be arranged for us two weeks later, which was considered fast. When we followed Director Ben to test the 1471 radar, we had to wait for more than a month before it was arranged. After all, the flight test institute is not a department dedicated to serving a certain unit. In addition, electronic equipment testing involves different system coordination issues compared to general test flight, so it is rarely so efficient. After all, there are regular workers involved, so its normal for them to pay more attention to it... ??Guo Lin glanced at Chang Haonan sitting next to him with a grateful expression. A burst of applause followed. Ahem Chang Haonan was confused by the sudden compliment, so he had to explain: This matter although it has something to do with me, its not what you think Since the beginning of this year, the Science and Technology Commission has been trying to implement a platform for direct communication and information transfer between different systems. In the past, for work like this that required the cooperation of our aviation and electronic systems, each piece had to be done separately. Processing and reporting will naturally be troublesome. Now major companies have established teams specifically to coordinate this type of work, so the efficiency has become higher. " This matter was discussed by Chang Haonan and Ding Gaoheng after the Seiko Plan was officially established. The original intention at that time was actually to say that at a higher level, such as the Science and Industry Commission system and the Ministry of Machinery Industry, such a set of mechanisms should be established. Communicate projects, requirements and research results, so that one side will not be anxious due to lack of certain technologies, while the other side will have developed related technologies but not know where to apply them. ??But what Chang Haonan did not expect at the time was that the divisions in this era did not only exist at the ministries and commissions level, but also the situation was similar between different enterprises under a ministry. Thats why we made this attempt. The effect seems to be pretty good so far. Marketization is indeed a good thing. Many things that were difficult to coordinate in the past have become much smoother when contracts and transactions are put directly on the table. ?According to the popular saying in his previous life, Chang Haonan can be regarded as implementing a wave of changes "above the neck"... Anyway, thanks to Chang Gong, we will immediately contact the 38th Institute to see when their test platform will be free of flight time... Obviously Guo Lin still doesnt know that Chang Haonan has reached a deal with Wang Xiaomo. "No need to contact you." The latter waved his hand and glanced at the project team members sitting around the conference table: "I have communicated with Academician Wang before that the 38th Institute will let us jump in line to use the No. 713 aircraft. Anyway, our test does not require modifications to the aircraft itself like radar testing, so now as long as everyone here has nothing to do, We can fly to Yanliang at any time for matters handled in Jinling. Hearing this, Guo Lin looked at Chang Haonan with completely overjoyed eyes Shocked, how many things do I still dont know? Its not too late, well set off tomorrow! ??Guo Lin is actually also impatient, but it''s just that the professional requirements of an engineer mean that it''s hard to see it at ordinary times. As for preparing for a business trip Its funny, engineers from the 14th institute travel on business for an average of about 200 days a year. They have long been used to it and dont need to prepare at all. UhLao Guo, whats going on at home After the meeting, the engineer who had chatted with Guo Lin during the day turned sideways and asked in a low voice that only a few people nearby could hear. "It''s okay. I''ve already rented a house for him on the east side of Dazhong Bridge. I''ll just wait until he has stabilized his job for a while before bringing my younger siblings over from his hometown. He''s almost 30 years old, so I don''t need to worry about that much." ?Guo Lin shook his head and said there was no need to worry. ?For Chang Haonan, going to Haojing, Shengjing or Rongcheng now can''t be called a business trip, it''s just going home. ?These three places even have dedicated long-term residences for him. So when the Tu-154 that Chang Haonan and others took landed at Yanliang Airport in the evening of the next day, he planned to go back to rest directly after getting off the plane to recharge for the next day''s test. But he found a somewhat familiar figure among the people picking him up at the airport. Senior sister? Chang Haonan still didnt know about Yao Mengnas decision to stay in Haojing. He was a little surprised and allowed the other party to give him a gentle hug: Shouldnt you go back to the capital? No, I applied to the teacher to stay here to help 603 Research Institute and 172 Factory improve some existing models. The latter took a small step back and replied. Existing models...have you already started to modify the JH-7? ?There are not many models that 603 can modify these days, so Chang Haonan naturally guessed the correct answer easily. But this improved project was obviously established several years earlier than in history. Thats right, but because of the problem with Turbofan 9, we are just pulling out two old aircraft for modification testing, which should be completed soon. ?Yao Mengna said and looked behind Chang Haonan. Another woman was walking up the gangway. This should be Researcher Xu? Xu Yang, who had just stepped forward, was stopped. He had not yet realized why the person in front of him, whom he had never met before, recognized him. Hello, Im Xu Yang. ?She hesitantly stretched out her hand and shook it. "Nice to meet you." Yao Mengna said with a smile. (End of this chapter) Chapter 260 JH 7MLU? Chapter 260 JH-7MLU? Well, nice to meet you too, but I dont know what to call you yet Even though the other partys tone and expression were very cordial, Xu Yang still felt an inexplicable chill all over his body. Perhaps I have gotten used to the weather in Jinling during this period. The temperature here in Haojing is a bit low. It seems that I will need to wear more clothes tomorrow..." She could only tell herself this in her heart. Yao Mengna is Chang Haonans senior sister. When we were working in Shengjing, we heard him mention you before, so I have always wanted to see the abilities of my senior. Yao Mengna still maintained her decent smile when introducing herself. It wouldnt hurt to meet him, but this...Dr. Yao, it seems he is not in charge of the same project as us..." Xu Yang was keenly aware that the other party had a slight hostility towards him. Although he didn''t know where it came from, he still gave a calm reply almost relying on intuition. Mainly because the title "senior" sounds a bit harsh for no reason. ?She is obviously less than 30 years old, but when she is called like this, she sounds like she is seventy or eighty... Chang Haonan, who was standing aside, thought that the two of them were familiar at first, but as he looked at them, he realized that something was not right about the atmosphere. As for what was wrong, he couldn''t tell for a while. But he instinctively thought something should be done: Speaking of which, why dont we get in the car first? After all, we still have testing tasks to do tomorrow ?Chang Haonan originally wanted to go to his residence to rest early today, but Yao Mengna took it directly; Junior brother, do you want to take a look at our modification progress? ??If it were left to other people, Jie Feng Washing would definitely have to eat, but Yao Mengna knew Chang Haonan''s character. When you have a lot of work to do, if you invite him to dinner, you will most likely be turned down. But it would definitely not be possible to ask him to go to the assembly shop to see the aircraft. Modification progress? ?Chang Haonans reaction was not at all what Yao Mengna expected: Its only been a little over three weeks since I left Haojing, and you have already started to modify it? ?This is actually a bit of a double standard. After all, he himself has achieved similar efficiency more than once. ?But now that I hear other people say this, it is indeed a bit outrageous if I think about it carefully. Its so **** fast This speed is indeed very good compared to normal, but compared with you, junior brother, it is still far behind..." As she spoke, Yao Mengna opened the car door and motioned for Chang Haonan to sit in. Then he followed suit and sat in the back row. This frees up the co-pilot. ?Different from the general situation where the boss is seated in the right back seat, powerful organizations such as the military generally regard the co-pilot as the main seat, because the officer who takes the car out will usually sit here. Xu Yang seemed to know this difference, so he hesitated for a moment, and finally knocked on the car window. Ill go to the guest house with them first, and Ill see you at the test tomorrow. In fact, so far she has only enjoyed the smoothness of working with a genius. Although I am also very interested in the aircraft Yao Mengna mentioned, it is not within my professional scope after all. I can only take a look at it, so it is better to have a good rest and reserve enough energy for tomorrow''s test task. After a brief farewell, the car in which Chang Haonan and Yao Mengna were riding quickly separated from the others and drove towards the final assembly workshop of Factory 172. Soon, a brightly lit factory building came into view, with two huge fighter-bombers parked quietly inside. The JH-7 is actually a very huge aircraft, almost the same size as the Su-27. Compared with the J-8C, which has dual engines and a single vertical tail with the same intake ducts on both sides, it is similar in length, but the overall appearance is more substantial and powerful, especially The two unusually thick splayed rocker landing gears on the left and right have a more murderous feel compared to the latter''s straight strut landing gear installed under the wings. Its just that the two current planes really dont show much murderous intent ?One of them has been almost completely disassembled, leaving only a basic body. Although the other one is more complete, many key parts such as wings have not yet been installed. Chang Haonan could tell almost at a glance that the progress of the latter aircraft was actually faster, because it was already very different from the previously mass-produced JH-7. Have you modified the ability of the JH-7 to receive refueling in the air? He asked, looking at an air refueling pipe on the right side of the nose of the plane. Yes, although the current range is already good, the lift-to-drag ratio of this aircraft is still not very good. Users reported that the range will be severely reduced when combat mounts are installed. ?Yao Mengna explained as she followed Chang Haonan out of the car, and then slammed the door shut: Although we dont have many tankers in total now, after discussing with Mr. Tang, I decided to leave a message to the troops. Obviously, at least during this period of time, she was able to be her own person and chat and laugh directly with the model chief engineer. The two of them walked into the assembly workshop one after the other. As the distance from the plane got closer, Chang Haonan quickly saw more details. The current installation method of this fuel pipe is relatively simple. It is similar to the 9-17 MiG 29SMT. A foldable fuel pipe set is installed directly outside the original skin, forming a relatively obvious bulge. Rather than the more common design that can be completely retracted into the machine head. ??However, it is definitely better than the fixed filling pipe. More importantly, there was no such incident in the timeline before his rebirth. The JH-7 never had the ability to receive fuel in the air from the beginning to the end. Chang Haonan has never even seen the JH-7 after his rebirth, nor has he talked about improvement plans or anything like that. This means that China''s aircraft upgrade project has changed from its previous life without his direct intervention. It also means that his hard work has not been in vain for more than half a year. It has indeed led to the development of a large number of engineering and technical personnel. In addition, the integrated windshield that was originally seen on the JH-7A also appeared in advance, replacing the original three-piece windshield with poor visibility. Considering that during the August 3rd Project, Yao Mengna had already made a similar one. work, so he should indeed be very proficient. Besides the fuel pipe and canopy, are there any other improvements? ??The degree of completion of these two aircraft is really not high, and Chang Haonan can''t see any more clues. "Of course, we are currently planning to upgrade the original 232H radar to enhance its anti-interference capability and add a continuous wave illuminator. The JH-7 is now the only treasure in the Navy''s hands that is second only to the two J-8Cs in terms of performance. Only if you can play semi-active ammunition..." In addition, these two aircraft will also upgrade the 1553B bus and distributed weapons management system, and replace the monochrome LCD display in the cockpit with a color one. For the first time, Yao Mengna felt that she had endless things to say in front of Chang Haonan, and she no longer had to be an almost unilateral listener like in the past. Chang Haonan next to him has been attracted by this last sentence. ? Having a data bus means that the aircrafts mounting capabilities can be easily upgraded to become a qualified multi-functional air tactical platform. The compact version of the electronic jamming pod they are about to test will need just such a platform in the future. So is this the template for the new JH-7 model? ?Chang Haonan raised his hand and patted the antenna of the 232H radar. "Of course not. After the Turbofan 9 can be mass-produced, the newly built J-H7A will have more upgrades, including a new model of radar, a four-redundancy flight control system, etc. Now it is just based on the original. The improved model will undergo a technical verification, and if there are no problems, the old aircraft may be gradually upgraded to this standard during the mid-term maintenance. " Yao Mengna replied. So these two aircraft cant be called JH-7A now? Yes, if there must be a different name, then according to the habits of foreign military, it can be called JH-7MLU, Mid-LifeUpgrade, mid-life upgrade. (End of this chapter) Chapter 261 Radar interference, electromagnetic shield! Chapter 261 Radar interference, shield of electromagnetism! While the two were chatting, they had already walked to two wings that were placed on the shelf and had not yet been put back together. Thats right, senior sister. ?Chang Haonan stared at the wing in front of him for a long time, then suddenly turned around: When you modify these two aircraft, remember to enhance the data transmission capabilities of the electrical interfaces on the pylons. After a pause, he added: If the space inside the old wing is really not enough, at least the two racks No. 3/7 should be specially upgraded and connected to the multi-function display in the back seat. Ah, of course there is no problem with this. There is still room for upgrading just two racks. Compared with the previous situation where she was only responsible for the 83rd Project, Yao Mengna is now responsible for a lot more work. She can even be considered to be leading the overall situation together with Tang Changhong. Naturally, she has a much more comprehensive understanding of the modification situation: But if you specifically upgrade the pylon...are there any special ammunition that need to be mounted? In 1997, China''s airborne weapon models were still quite poor. The only precision-guided munition currently used by the JH-7 was the YJ-81 missile with a range of 50km. Due to its poor ability to deal with clutter, it could basically only be used for anti-ship. During launch Previously, there was no need to communicate much data with the carrier aircraft. In fact, the YJ-81 can even be launched without target information and try its luck after the terminal radar is turned on. "Ammunition... about the same" Strictly speaking, jamming pods should probably be regarded as equipment, but if we use a more literary term, it is not impossible to regard electromagnetic waves as invisible ammunition: The thing we came here to test this time, if it is built normally, should be able to be installed on the JH-7. I know. Yao Mengna nodded. Senior sister, do you need any technical help? ?Concerning the choice of electronic warfare platform, Chang Haonan couldn''t help but ask. "It''s nothing so far. In fact, the upgrade plan we have decided on is very conservative. It is almost all the things you brought me to do in Shengjing before, so in general it is going well. According to the current plan "Probably next month we will be able to modify these two aircraft and hand them over to the troops for trial use." ?Yao Mengna had a touch of pride on her face. If at the beginning, she chose to stay in Haojing in order not to be thrown too far away by Chang Haonan''s footsteps, then after nearly a month of work, she has begun to have a deep understanding of the two aircraft that were born by her own hands. Some feelings arose. The aerial test of the pod was carried out on the afternoon of the second day when it was cloudy but without rain. The main reason is that there are currently no corresponding transportation and storage standards for the engineering prototype. After it was airlifted to Haojing by a Y8, it needed to be completely inspected, which was delayed for half a day. After lunch, Chang Haonan finally saw the rather mysterious No. 713 electronic equipment verification platform at the end of the tarmac. At this time, its nose is carrying a black radome. Judging from its appearance, it should be the 1473 radar used in testing the J-10. It is also the model planned to be replaced by the JH-7A in the future. ?However, Chang Haonan''s pods do not need to occupy the most precious nose space. The small pod can be hung under the wing, and the large pod can be hung under the belly of the fuselage. Chang Haonan and the others, who had just finished the ground inspection, were not far away watching the ground crew install the two pods on the Y-7. Compared with the test flight of the aircraft itself, this kind of electronic platform test basically does not pose much risk to the pilots, so the overall atmosphere is relatively relaxed. The three pilots shook hands with Chang Haonan and Guo Lin in turn, and then turned to board the plane. With the roar of the engine, No. 713 left the runway trailing two faint lines of black smoke and gradually disappeared into the clouds. Normally, for this kind of test, it is best to take off several fighter jets as jammed targets, so that the height and location of the test can be basically unrestricted to avoid affecting residents or other equipment on the ground. But these days, there are only a few aircraft in China with beyond-visual-range combat capabilities, and it is definitely impossible to lend them out casually. In addition, Chang Haonan and the others have a very tight schedule, so in the end they had to use the name of joint air-ground training. Let the artillery sighting radar of a nearby anti-aircraft artillery regiment serve as the imaginary enemy of the "Blue Army". After climbing to a sufficient altitude and entering level flight, aircraft No. 713 quickly turned its nose and flew northeast to the scheduled test zone in Hongnong City. The anti-aircraft artillery regiment of the 139th Division of the 47th Army is stationed there. At the same time, Shen Yan, the commander of the anti-aircraft artillery regiment, was standing behind the command position slightly nervously, looking at the 18 Type 74 double 37mm anti-aircraft guns arranged in a semi-circle on the preset position in front of him. ??This is equipment that other similar units in the army can''t wait for. Although the appearance is similar to the previous Type 65 Double 37, it has added a 1035 analog commander, a two-meter rangefinder and a 10-type gun sighting radar. The anti-aircraft gun itself is also equipped with a servo motor, which can automatically acquire and solve Target Zhuyuan does not need to rely on human power to drive the height machine and steering machine. Other than having to be towed by a truck and spending time setting up positions, it seems that there is not much difference from those modern fully automatic anti-aircraft artillery systems. ??Moreover, Shen Yan also specially sent an anti-aircraft artillery battalion with the best training results in his hands. In fact, he himself was the battalion commander of this battalion in the past. Because he led the team to the top spot in a military district-level competition, he was promoted to deputy regimental commander and eventually to regimental commander. Although he had long known that the actual purpose of the so-called joint training was to test the flight test academy, the opponent was not the Air Force that he had always expected to compete head-on, but whatever. ??This era''s army is really tough. The anti-aircraft artillery regiment rarely even has the opportunity to practice target drones, and most of the time they can only practice in the air. Now that there are live people flying real planes to practice with them, Shen Yan simply couldn''t ask for it. ??Anyway, the fighting spirit of the commanders and fighters at all levels has been aroused, and he has promised that if the confrontation exercise is successful, the whole regiment will be given extra meals at noon tomorrow. As the estimated exercise time approaches, Shen Yan raises his hand to look at his watch more and more frequently, and from time to time he also glances at the radar screen not far away. Obviously, he was also a little nervous. On the other hand, the working group of the Flight Test Institute who had been standing behind him had a stable mentality. They are not soldiers. They are only responsible for faithfully recording everything that happens. They will not and cannot have Shen Yan''s competitive spirit. Report, radar found targets, number 6, direction 34, distance 20km, altitude 1000, speed 350! The radar operators loud report broke the silence in the command post. Originally, due to the existence of the automated command system, this step is not needed. ?However, considering that there were still flight test institute personnel on site who might not be able to understand the radar data, I still reported it. 6? Shen Yan''s expression froze and he turned back to look at the engineers in casual clothes. The leader shook his head and said that our flight test institute did not have that many aircraft of the same type, and only one took off. TMD Hearing this answer, Shen Yan knew that his radar was interfered with. The operator skillfully followed the standard procedure, but it did not work. The target is only 14 kilometers away from the position. Calculate all the elements for all targets, and let the rangefinder prepare for manual processing. Even if you are blind today, you will still be blinded! ?Shen Yan took off the hat on his head and held it in his hand. He picked up the walkie-talkie with his other hand and ordered. As a commander who has been rated as excellent by the entire army, he naturally has a set of things that he can adapt to changes, rather than a rookie who is at a loss without technical equipment. ??The originally silent position suddenly became heated. Soon, several targets on the radar flew into the extreme shooting range of the anti-aircraft gun. It is a simulated shooting anyway, there is no need to consider the damage efficiency, as long as the theoretical range is sufficient, you can shoot. The antiaircraft artillery positions were organized in groups of three and fired several rounds under the command of radar. The smooth cooperation between staff in different positions made Shen Yan''s face finally look better. But the good times did not last long, and observers reported that they did not see any targets flying over. Report to the leader, the radar shows that the target aircraft is in the air! ??The radar operator''s voice sounded again. Obviously, all the six he caught just now were false targets. Quick, get ready to reload! ?However, as soon as he finished speaking, a small black spot appeared from the horizon in the 34th direction, and continued to grow in size in everyone''s field of vision. ??The observer with a rangefinder in his hand quickly reported the type of aircraft. A Y-7 has a speed of about 350 and a slant range of about 3km. ?At this time, Shen Yan''s face turned completely pale ??If this was on the battlefield, and what flew over was not a slow transport plane but an attack plane, his battalion-level air defense position would probably be wiped out. (End of this chapter) Chapter 262 Win or lose, find problems Chapter 262 Victory and defeat, problems discovered ??The staff of the Flight Test Institute behind Shen Yan did not show any particular signs of adding fuel to the fire. They just immersed themselves in recording all the data and situations just now. ?Of course, this behavior itself has caused considerable harm to the formers heart. But the testing process is not over yet, so no matter how uncomfortable Shen Yan feels, he still has to command the troops to complete the next tasks as planned. As for technical and tactical issues, we can only wait until the end of today. ??Moreover, judging from the skilled performance of the battalion commanders and fighters under his command just now, there may not necessarily be no chance of a comeback in the next few tests. There are definitely limits to the capabilities of the radar, but whether the test is successful or not is a matter for the aviation industry. As the commander of the anti-aircraft artillery regiment, Shen Yan is only thinking about how to put the simulated " "Enemy plane" was shot down. ??While the plane was circling around, he lowered his head and thought for a while, then picked up the walkie-talkie again and called the battalion commander who was sweating on the position: Let me tell you, let the gunner stay in the fighting position the whole time this time. If there are still 6 false targets in the first round, then dont fire until the real targets appear later! ??The battalion commander, who was already a little panicked, heard the regimental commander''s calm voice coming from the intercom, and his mentality instantly calmed down a lot. He began to re-direct the troops to reload and reset the artillery, waiting for the next round of testing to begin. In fact, Shen Yan is suspected of taking advantage of a test loophole by doing this. On the one hand, he has already experienced electromagnetic interference and knows what kind of situation he is about to face. On the other hand, in order to ensure safety, the Y-7 aircraft cannot simulate the real situation. The attack aircraft''s low-altitude and high-speed penetration could only fly over slowly at mid-altitude, which also gave Bisuan Zhuyuan and manual cannons enough time. ??If the target is a Q-5 or JH-7, in fact, even with radar assistance, it is even difficult to make the muzzle keep up with the approaching angular speed of the target by manpower alone. ?Several engineers from the flight test institute saw all this, but did not interfere with Shen Yan''s command. After all, they are not really a blue force engaged in confrontation. They are only responsible for recording the situation of the radar when facing interference. Regardless of whether the latter''s tricks are successful or not, they will not actually affect the test results. About ten minutes later, the transport plane, which was a little clumsy because it had two pods attached, returned to its "attack route". Everything seemed to be a repeat of the last time, except this time there were many more soldiers operating anti-aircraft guns on the position. Report, radar found target! The radar operator reported loudly again. A smile finally appeared on Shen Yan''s face. ??If the other party still uses his old tricks, he is sure to earn back his face this time. ?However, two seconds passed, but he still did not hear the voice reporting specific information about the target. "what happened?" ?Shen Yan, whose heart sank, turned around, strode behind the radar operator, and looked at the circular screen in front of him. "why is it like this?" What appeared in front of him was not the same number of fake targets as last time, but abnormal signals spread across an entire long strip of area! Try it and see if it can be locked? Shen Yan, who was relatively confident just now, was completely at his wits end this time. Although he did not shoot out all the ammunition at the false target like the first time, the direction of the entire position was now in chaos on the radar screen, and he could not even determine the specific direction of the target''s attack. Even in air defense operations during World War II, advance warning of the approximate direction, altitude, and time of enemy aircraft''s attack was needed. National radars with good conditions can also have full-time air defense lookouts who can conduct reconnaissance several kilometers away from the position, or even in the middle of the enemy aircraft route, in order to leave enough reaction time for the air defense forces. If the anti-aircraft gun observer had to wait until the anti-aircraft gun observer could see the target with his naked eyes before reacting, it would be too late. Just like it is now. As expected, the Y-7 appeared in a different direction than last time. And the height is even lower than last time. So much so that a rangefinder looking in one direction wouldn''t even be able to spot it in the first place. ??When the 18 anti-aircraft guns adjusted their direction and aimed their muzzles at the target, the opponent had almost flown over the position. Obviously, the best outcome is for both parties to perish together. But even if Shen Yan used the lowest standard in his heart to judge, he couldn''t tell himself that this was a successful defense. You must know that the division-affiliated anti-aircraft artillery regiment is responsible for the air defense mission of an entire division-level position. Only one battalion can be deployed in each direction. If the opponent replaces one of his battalion-level positions with one aircraft, it means that the whole The division faced follow-up air attacks in this direction with its doors wide open. TMD! Shen Yan punched the table next to him. ?At the same time, Chang Haonan, who is in Yanliang, is also following up on the trends at the test site. Although specific data needs to be analyzed after all tests are completed, the basic situation can still be obtained in real time through the phone. In fact, the two simulated attacks of aircraft No. 713 used two frequency-shifting interference modes of the pod: advanced false target interference and multi-coverage interference. Of course, the pod can also combine these two modes to generate false targets while using covering signals to shield the real targets. But from the effect point of view, there is no need to repeat it. The range of the Y7 is not outstanding, not to mention that it also carries two pods, one large and one small. When the report of the successful test came out on the phone, the atmosphere in the entire conference room became heated. ?This at least proves that with a leading architecture, it is possible to replace high-performance components that are temporarily unavailable with multiple components with lower performance. The idea is no problem. The test of the No. 1 pod is here first, and the next round will start testing the effect of the No. 2 pod! Chang Haonan suppressed the same excitement and ordered to the phone. ? Pod No. 2 is the redesigned, more compact pod that can be mounted by most tactical aircraft. This is the product that Chang Haonan really has high hopes for. Unlike the situation on Yan Liang''s side, everyone on Hongnong''s anti-aircraft artillery regiment position, including regiment leader Shen Yan, became depressed. Even though I knew that there were still two sets of tests to be completed, after exhausting all methods to catch the target, the previous fighting spirit inevitably began to dissipate. From now on, its just a matter of cooperating with the Flight Test Institute to complete the test tasks step by step. Even the radar operators voice was much quieter when he reported the detection of a false target again. However, just when Shen Yan thought he was about to repeat the plot of the first test, the situation suddenly changed. Captain, the interference has suddenly become weaker! "what happened?" Shen Yan was instantly refreshed. The echo intensity of the false target has become weaker, and I can distinguish the real target from it! The operator replied while adjusting the equipment quickly. Quick, all attention, automatic fire mode, ready! Yun-7 is, after all, a target with a large radar reflection area and almost no maneuverability. Although the interference effect has not completely disappeared, the affected radar has still completed locking at a distance of about 5km. Target in range! Fire! Two rounds of simulated shooting were completed quickly. According to the general exercise settings, this was considered a complete shootdown. In the fourth round of testing that followed, the situation was almost the same. Although the multi-coverage interference initially successfully obscured the aircraft''s position, it was still locked at a distance of approximately 6 kilometers. Although this distance seems very close, you must know that the Aim 10 is not a very good radar that can be caught at a distance of 5-6 kilometers. So when facing more advanced and more powerful models, The situation is obviously not optimistic. ?At this time, the atmosphere on both sides turned around. Captain, do we think we have won half the battle? ??The radar operator took off his earphones and looked at Shen Yan, who had just taken turns hugging the regiment command team. The latter looked back: It counts, it counts, they say we are anti-aircraft defense and nine out of ten air defenses, now we have defended four times and only missed two, it counts! Ahemthen tomorrow Inform the cooking squads of each company to prepare to kill pigs tomorrow and provide extra meals for the whole group! "ah?" The face of the Secretary General of the Regiment Canteen, who had been beaming just now, froze for a moment, and then he showed a pained expression... On the other side, Chang Haonan, who had just learned that the interference effect of the No. 2 pod was not satisfactory, fell into deep thought. The No. 1 pod tested before was the large pod that was copied 1:1 according to the captured model, and everything was normal. ? Pod No. 2 is completely the same from an equipment point of view, but its performance is somewhat inferior. Unit No. 713 has specially strengthened its power supply capacity for electronic equipment testing. It is definitely not caused by insufficient energy... Hiss... Do we really have to be cautious when modifying the original design? (End of this chapter) Chapter 263 Adults choose everything they want (2-in-1) Chapter 263 Adults choose everything (two in one) For the engineers of Institute 14, the current situation is generally a mixed blessing. The success of Pod No. 1 can be regarded as a guarantee, at least it allows everyone to confirm that they are going in the right direction. So now the No. 2 pod faces at most an engineering design problem, and it may even be a minor problem with the manufacturing or assembly process. This will have to wait until the test data and the radar data from the anti-aircraft artillery regiment are returned before slowly checking it. ?However, for Chang Haonan, achieving this step is obviously not enough. When he first arrived at the 14th Institute, he used the system to analyze the working principle of the captured pod, so this step was definitely not wrong, and it was the scaled-down version of the No. 2 pod that truly represented his own work. So no matter what, he still hopes to solve the problem quickly. About 20 minutes later, aircraft No. 713, which had completed the test, landed steadily on the runway of Yanliang Airport. Soon, the two pods, one large and one small, were dismantled by the ground crew and moved to a workshop specially arranged for No. 14 for testing. Subsequently, Guo Lin and others began to disassemble the pod and check whether there were any problems with the component installation, while Chang Haonan and Xu Yang removed the test equipment on the aircraft. It can faithfully record the working conditions of various airborne equipment during the entire flight just now. In the first two rounds of tests, that is, when the No. 1 pod was activated for interference, everything was normal throughout the process. But when the No. 2 pod was opened, the situation became very strange. ?At the beginning, that is, when the pod has not captured the radar waves directed at itself, the data is still normal. This shows that there is no problem in the power-on step. However, when the aircraft entered the detection range of the artillery sighting radar and the jamming pod actually entered working status, an abnormality occurred at the signal receiving end. This is true for both the third and fourth rounds of testing. ??And as the distance to the radar body approaches, or as the energy emitted by the jammer increases, the signals recorded by the pod''s receiving end become increasingly chaotic. Chang Bo. Just as Chang Haonan frowned and stared at the signal map on the screen, Xu Yang''s voice suddenly sounded from behind him: Enlarge the signal of the last minute of the receiver and take a look. Chang Haonans content about signals and control was actually slowly taught by himself after he was reborn. ?Of course, thanks to the knowledge the system has given him in several related projects, he is able to handle general application problems with ease. However, compared with people like Xu Yang who have a professional background, they are still slightly lacking in basic skills training. ?Just like now, Chang Haonan may not be able to react faster when he needs to find the real problematic part from a bunch of complicated lines. ?But one advantage he has is that he can listen to what others say. So I immediately followed Xu Yangs request to enlarge and process the last minute records of the last two rounds of testing. "look here." Xu Yang pointed at one of the curves: The amplitude of this curve is very low at the beginning and is almost invisible, but it will increase every cycle from its appearance, and in the end it will even be about the same intensity as the gun sight radar wave received by the receiver. As soon as she said it in such a concise manner, Chang Haonan immediately grasped the key point: So it interferes with the input signal of the entire pod, causing the output signal to be abnormal, and the interference effect on the radar becomes worse..." Wait, this is a self-oscillating signal? Thats right. ?Xu Yang snapped his fingers: So the situation is very clear. The problem is not with the components. We can stop Guo Gong and others from continuing to investigate. ? Chang Haonan slapped his forehead with some annoyance, and then called Guo Lin and others who were busy analyzing the circuit board on the other side. If it is just a simple interference signal, then there are actually countless possible sources. ?For example, some part of the process in DRFM is not good, or there is a problem with the sampling clock of a certain channel during the frequency division multi-channel sampling process, etc. ??But none of these problems can create a positive feedback self-oscillation signal. ??The only possibility is that the isolation between the pod''s transmitting and receiving antennas is not high enough, and the high-power interference signal emitted by the transmitter is coupled from the receiving antenna into the receiver. The people at the 14th Institute also have a professional background. Although if they were asked to find the problem on their own, they would not be able to see it at a glance like Xu Yang, but it is definitely not difficult to understand Chang Haonan''s meaning when there is an explanation. So thats what it is ??Guo Lin also smoothed his hair in surprise: But we have obviously implemented polarization isolation? ?The so-called polarization isolation means that the transmitting and receiving antennas are arranged in an orthogonal manner, with one vertically polarized and the other horizontally polarized. Theoretically, there will be no crosstalk between the signals between the two antennas. ?However, because it is impossible to achieve truly perfect orthogonal polarization when implemented in engineering, it will still be affected to some extent. This shows that our polarization isolation is not high enough. When the distance between the carrier aircraft and the radar antenna approaches a certain level, the power of the transmitter will burn through the polarization isolation, affecting the normal operation of the receiving antenna. Haonan put down the mouse in his hand, looked at the No. 1 pod not far away and replied: And I also understand why Raytheon designed the pod to be such a large size "really" Xu Yang, who was the first to raise this question and has been troubled by it, also showed a look of understanding: They couldnt solve the problem of polarization isolation, so they used the simplest and crudest physical isolation method. As long as the distance between my transmitting and receiving antennas is far enough, I wont be afraid of being affected. Now that the problem has been clarified, the next step is to find a solution. In fact, the idea is quite logical. After all, there are actually only three commonly used sending and receiving isolation methods. Spatial isolation, polarization isolation and time isolation. The first type is physically impossible due to the size limit of the pod, and the second type cannot be realized due to technical problems. Naturally, the third type is left. ?So Guo Lin expressed his thoughts: What if the all-receiver-all-transmit mode is abandoned and the time-sharing working logic of transmitting and receiving is adopted, such as full-pulse store-and-forward interference, or short-pulse store-and-forward interference? Xu Yang had naturally thought about this, but she still shook her head resolutely: "Then the advantage of our jammer is gone. The short-pulse storage and forwarding jamming only uses a short section of the radar signal to cycle end-to-end. If forwarded, the false target signal generated will become very wide, and a slightly more advanced radar can easily distinguish true and false targets. " "As for full-pulse store-and-forward jamming, although the target generated is very real, the false target will lag at least one pulse width behind the real target echo. It is okay to deal with some airborne narrow-width radars, but if it is against something like the Patriot, For linear frequency modulation pulse compression radar, if others directly use a width of 60 microseconds or even 100 microseconds, then our false target will be directly behind the real target by 10-15 kilometers, and it will not be able to confuse the enemy at all. " After Xu Yang blocked the last way out, Guo Lin really couldn''t think of any other way. MD, it makes sense for Americans to build such a big thing...its so difficult... ??Guo Lin patted the huge pod No. 1 next to him. ?This guy, which is nearly 10 meters long and about 1 meter in diameter, is a behemoth that cannot be carried by most tactical aircraft. In addition to the MiG 25/31, it is really difficult to find a suitable tactical platform as a carrier for it. The largest equipment mounted on the Su-30 in the previous generation was the BrahMos with a length of 8.4 meters and a diameter of 670mm. The record for the Su-34 is the Kh-47M2 Dagger, which is 7.5 meters long and has a diameter of 1.2 meters. In other words, only Su 34 can barely hang up. But lets not say that China does not have a model corresponding to the Su-34. Even if it does, the sealing of the belly mounting point is too high. The front is blocked by the classic drooping nose of the Flanker family, and the two sides are blocked by two incoming air intakes. The airway is blocked and is not suitable for placing interference pods that require a large amount of receiving and transmitting electromagnetic waves. How about we change our thinking? After a few minutes of silence, someone next to me finally suggested: Perhaps there is no need to design this thing as a pod. "I heard that the institute''s research progress on the active and passive SAR radar is also pretty good. Can we consider combining the electronic jamming and electronic reconnaissance functions into one, integrating them into the Y-8 or H-6, and building one directly? When the integrated electronic support aircraft comes out, the Air Force will definitely like it." ?This model is very close in concept to the later Gaoxin 12/Yun 9DZ electronic warfare aircraft. As he said, the Air Force really likes it. Although it is difficult for this kind of aircraft to follow the formation of tactical aircraft to fight together and destroy the opponent''s air defense network with physical means like the EA6B or EA18G, it can at least provide cover in a relatively safe place. It is better than simply relying on low-altitude penetration to try your luck. ??Moreover, in non-wartime patrols and confrontations, larger platforms are more capable than Flying Leopards or Flankers. In the previous life, the Chinese Navy and Air Force made very good use of the long airtime advantage of the high-tech series aircraft (the range of the Y8/9 platform is actually not far, but the economic speed is relatively low), and responded by repeatedly allowing the Air Self-Defense Force to take off at super intensity. This method has greatly weakened the combat readiness level of the opponent''s main fighters such as F15J/DJ. ? So that some time before Chang Haonan was reborn, Air Force was already considering using the F2, which was originally designed for ground-to-sea attacks, to conduct air interception missions. That seems to be a good result. Especially now that China urgently needs to deploy naval and air forces in certain directions to declare its presence. But just when some people were moved by this idea, Chang Haonan, who had been turning his back to everyone and calculating something on the computer, suddenly turned around: Of course we need to develop integrated electronic support aircraft. But tactical electronic warfare attack aircraft cannot be just abandoned. Children only make choices, adults only say I want them all. But Chang Gong, the self-interference problem after the pod size is reduced is difficult to deal with..." Someone whispered. In fact, Chang Haonan just perfected the inspiration that flashed through his mind on the computer, and then used the system to test whether it could form a closed loop. ??The fact that he has not received systematic professional training is his disadvantage, but it is also his advantage. Compared to Guo Lin and others, Chang Haonan''s thinking set is obviously much less. The final answers are all feasible. ? Its just that this time he did not continue to build a new project through the system. Instead, he decisively chose the glorious free prostitution after confirming that the idea was okay. ?If possible, Chang Haonan still hopes that this matter can be completed by "himself" in the true sense. Its not just for the challenge, but also to exercise your own abilities, especially theoretical experience. He discovered a long time ago that when completing tasks of similar difficulty, the scientific research points obtained without using the system are not much different than using the system, but the ability value and experience obtained are completely different. ?This is easy to explain. After all, the knowledge I have gained bit by bit must be more solid than the knowledge gained directly from the system. After his rebirth, his engineering experience and management abilities have made great progress, but although the [theoretical level] has also gained some experience points, it still remains at the LV2 level. Of course, there is the factor that upgrading from LV2 to LV3 requires up to 10,000 experience points, but in any case, as the level of the projects he participates in becomes higher and higher and the content becomes more and more complex, Chang Haonan has begun to feel that the theoretical level of LV2 is somewhat beyond his capabilities. . ?For example, the multi-physics simulation modeling software mentioned when I chatted with Yan Zhongcheng at the Three Doors Celebration Banquet. He thought for a long time and started some theoretical construction in his spare time, but without exception he failed to form a complete and feasible idea. So it is necessary to "brush" some theoretical level experience points. ?But just when Chang Haonan was about to speak, a younger engineer suddenly took over the conversation: Actually, I think we should consider the pod and aircraft platform as a whole. ??The former almost choked as the words were blocked in his mouth, but he still motioned for the other person to continue speaking. "Our current idea is to hang two pods with the same function on the aircraft to superimpose the interference power. But in fact, this is not necessarily necessary. It can be done... For example, on the left side, the pod is only responsible for receiving the signal illuminated by the radar. , then processed by the aircrafts computer, and then the pod on the right is responsible for transmitting the interference signal..." "In fact, the entire aircraft is designed as a flying pod. In this way, even an aircraft with a relatively small wingspan like the J-8C is almost 9 meters long, and there is an entire fuselage in the middle as a shielding isolation. It is completely OK. Meet the requirements for spatial isolation. Hey guys, open your mind. ??If the atmosphere at the scene was not quite serious, Chang Haonan would even want to applaud. ?The other party''s words reminded him that it was very likely that in the past, when the electronic warfare aircraft of the United States and the Soviet Union faced similar situations, they used similar ideas to avoid the self-interference problem that occurred in simultaneous transmitting and receiving jammers. In addition to poor flexibility (an aircraft must be significantly modified, the two pods hanging on an ordinary aircraft are completely useless), this idea can only interfere with an angle of approximately 45-60 on one side of the aircraft fuselage ( The jamming signals of most jammers are effective in an arc-shaped area of ??90-120 straight ahead), so apart from the strict requirements on heading, it is not a big problem. Its actually a pretty feasible solution ??If it weren''t for the fact that Chang Haonan already had a better solution in his mind. Ahem...the problem of self-interference is indeed difficult to deal with, but it may not be insurmountable. (End of this chapter) Chapter 264 Intermittent sampling successive loop forwarding interference Chapter 264 Intermittent sampling and successive loop forwarding interference Everyones attention was once again drawn to Chang Haonan. Changgong, you mean... ??The engineer who just proposed to design different functions for the two pods and then divide the work and collaborate also looked over. He really felt that his plan was quite perfect. ?Although it can be regarded as opportunistic in a certain sense, it is at least opportunistic with a relatively high technical level. I think it is feasible to let the receiving and transmitting antennas work in a time-sharing manner just mentioned by Gong Guo. Chang Haonans words made Xu Yangs eyes widen. ?That expression basically says "I read a lot, you can''t fool me." ?But he went on to say: "However, the two traditional methods, whether full pulse or short pulse, work based on a time width of the captured radar signal. Even the latter only uses a small section of the radar signal to perform head and tail analysis. For consecutive cyclic forwarding, a new receive-calculate-send process will not be started until the next time interval. But we can use the radar to transmit a signal with half the pulse width as an interference signal while keeping the overall structure of the current hardware unchanged. Half width? ?This slightly surprising proposal initially caused some moderate ripples among the crowd. ?However, some people soon realized that this approach seems to be feasible in theory. Especially for chirped pulse compression radars, which are increasingly common. ?However, even in the United States, electronic warfare is still in the barbaric stage of development, and I have never heard of anyone systematically demonstrating this. "However, if we still use the previous method of sampling first, storing the signal and then waiting for half a cycle before forwarding, then it will only change the lag distance of the false signal from 10-15km to 5-7.5km. This distance is suitable for both radar and radar. Its not deceptive to the operator, and it doesnt function as a cover for the real target. The one who spoke was still the engineer from before, and he obviously still wanted to struggle with his plan. You are right, so I choose not to go through this storage process. ?This statement is even more shocking, because a significant advantage of digital jammers based on DRFM compared to jammers that use traveling wave tubes to achieve phase modulation and frequency shifting is the ability to store frequencies. Of course, strictly speaking, it does not go through a complete storage process. ?Chang Haonan revised his statement again. ??Guo Lin, who was already familiar with this scene, immediately took out a pen and paper from the briefcase he carried with him and handed it over. He knows that what he should do at this time is to watch the big man''s performance and see what he can learn from it. If you have a chance, you can be a compliment. ?Chang Haonan also habitually took it directly and started to draw the schematic diagram. ??However, the content this time is relatively simple, just a simple coordinate axis. "My idea is that after the receiver intercepts a large time-width radar signal, it only samples a small section of the signal with high fidelity and processes it immediately, and then forwards it to the transmitter, and then samples the second section and processes it for forwarding. A period of time is cycled in this way, and the sampling and forwarding work alternately until the end of the large time-width signal. "The jammer''s receiver and transmitter work in time-sharing within the entire pulse width, which can perfectly achieve time isolation, and since each sampling time and forwarding time are the same, it can capture exactly half of the radar''s transmitted pulse, achieving what I just said half-width signal interference. This is the benefit of not having a fixed mindset. Compared with the sampling half-cycle-forwarding half-cycle model, Chang Haonan''s proposal actually only shortens the cycle of this process, but the effect of generating false targets is very different from the former. Let alone operating in full cycle units. ?But of course this little cleverness is not all. The real core technology lies behind: "In addition, the processing algorithm here cannot continue to use simple direct forwarding methods, which will only generate a main and false target that is exactly the same as the real target and 2-3 realistic fake targets that are of confusing value. The rest is It has no real value." But if we use repeated forwarding or circular forwarding in the interference algorithm..." (You will not be interested in these two algorithms) "In this way, a large number of realistic false targets with strong amplitude can be generated within 2-10 microseconds before and after the real target. This form is very suitable for accompanying electronic warfare aircraft for team jamming or tactical aircraft for self-defense jamming. Specifically, The false target generation characteristics can also be adjusted to suit different combat environments by changing processing parameters in the pod control software. Chang Haonan put down the dull pencil in his hand and looked up at the crowd. Hmm In this case, we need to replace it with a new FPGA, but other than that it seems that everything can be done based on the original circuit. After hearing the idea of ??"intermittent sampling and successive loop forwarding interference", Xu Yang almost immediately thought of the key points for improvement. "In addition, it is best to modify the antenna structure and replace it with an Archimedean spiral antenna. The two arms are fed with equal amplitude and anti-phase. This way, bidirectional circularly polarized radiation can be obtained in a wide frequency band, and the input of the antenna within a wide frequency band can be obtained. The impedance remains unchanged. Chang Haonan continued to add. "Understood." Guo Lin next to him had already written down several pages of notebooks. Although his reaction was slower than that of Xu Yang, he was still an engineer with formal training and had already begun to think about how to minimize the impact on the engineering design of the pod. Modifications to complete this prototype upgrade: "The replacement of the antenna and FPGA is not complicated in operation. I can even do it manually. I can send these requirements back to Jinling and have the corresponding components built and sent over. We can replace them on site. As for the middle ones, In a few days, we can focus on testing the No. 1 pod. What Guo Lin proposed is basically the most compact plan in terms of time. ? There is no way, time waits for no one, and after all, Unit 713 was borrowed from the 38th Institute, so it is not easy to keep it and not return it to others, so every day is faster. Everyone quickly reached a consensus and continued the experiment according to the above plan. The No. 1 pod is not without value. Although the algorithm proposed by Chang Haonan is very clever, in the end it is still a compromise. If we really want to talk about actual performance, it cannot be achieved when the component specifications are consistent. It is comparable to the former which relies on widening the spatial distance to achieve isolation of sending and receiving, and can work in all-receiver and all-send mode. Sometimes, big is really good. Hence, there is no need to use the intermittent sampling scheme on the integrated electronic warfare aircraft of the Y-8 platform where space is not tight. "In addition, I went to the 172 Factory last night to have a look. They happen to have a JH-7 that is almost finished with its mid-life upgrade. After our No. 2 pod is tested on the No. 713 aircraft, it can be directly installed on the Flying Leopard. On the platform, lets take a look at the actual effects of team interference mode and self-defense interference mode. After all, relying on a Y-7 simulated attack aircraft is indeed too outrageous. After the solution has been come up, the atmosphere in the entire meeting room is no longer as heavy as it was at the beginning. If I want to use the JH-7 for testing again, I feel like I have to find another brother unit to cooperate. An engineer said in a joking tone: "I just heard from the people at the Flight Test Institute who went to the 139th Division Anti-aircraft Artillery Regiment to test that their regimental commander suffered a considerable blow after the first two rounds of tests, and our No. 2 pod was not effective until the second half. It just calmed down a little bit. ?There was a burst of cheerful laughter. You really cant take advantage of Big Brother in the Army. Chang Haonan also smiled and waved his hand: And this time we are in a hurry for testing and cannot contact other troops. The artillery sight radar is not a particularly good imaginary target. Next time we will try to find an air defense missile regiment of the Air Force to try the effect! Actually, its not that I dont want to write a few more words (an entire formula without spaces only counts as 1 character, and theres actually no way to quantify the number of words). The main reason is that after the revision, Qidian cannot recognize some special symbols and Greek letters, resulting in all the garbled characters and characters being sent out. question mark (End of this chapter) Chapter 265 Chkalov aircraft factory Chapter 265 Chkalov Aircraft Factory ?At the same time that Chang Haonan and the engineers from the 14th Institute of Electrical Engineering were busy designing the new FPGA required for the No. 2 pod, they were preparing to conduct ground input and output tests again. Three time zones away, Tashkent, an oasis city located in the desert area of ??central Eurasia, is preparing to welcome a group of somewhat special guests A high-level delegation from China for arms purchase negotiations. ?Of course, there is nothing attractive about Uzbekistan itself. However, the Chkalov Aviation Production Complex, which is connected to the Ilyushin Aviation Group, is located here. At the peak of Big Brother, it could produce more than 70 large transport aircraft every year, as well as a larger number of small and medium-sized transport aircraft or passenger aircraft. . ? Its just that now, the factory has not received any decent new orders for nearly two years. ? Even several aircraft that had been built before were parked alone in the assembly workshop because no one was finishing the work. ?In order to retain the idea of ??reselling these aircraft, the factory even has to regularly spend material and financial resources to maintain them. In fact, it is almost time to untie the pot. Including the Ilyushin Group itself, the situation is already in danger. ?After the last Xiangzhou Air Show, Mikhail Pogolans proposal to establish a company specifically responsible for the foreign trade of aviation equipment quickly gained unanimous approval among several major Russian aviation industry companies. As a result, in January 1997, United Aviation Technology Export Co., Ltd. of the Russian Federation was formally established. ?Among them, the ones with the most say are naturally the Sukhoi Group, which initiated this matter, and the Miri Moscow Helicopter Factory, which has made a fortune in recent years. ??The first thing Ilyushin Group did after all the dust settled was to quickly invite a Chinese delegation to visit the Chkalov factory. ? Sergey Lozko, who visited Xiangzhou last year as the leader of the accompanying security team, and has now been promoted to the director of the groups marketing department, is very aware of the other partys current needs. In the civilian field, judging from its operations in the past six months or so, China is clearly preparing to break away from the US aviation industry system that it has been considering in the past, and instead intends to develop a new set of things on its own. In the military field, they are also facing tremendous pressure from their old rivals across the ocean. They urgently need to change the state of relative armament in the past ten years and quickly build an army with acceptable combat capabilities. ?Furthermore, Chinese people are not the kind of people who can only see everything in front of them. They are more accustomed to long-term calculations, so there will also be demand for some technologies and equipment that "may not be useful for the time being, but will definitely be useful in the future." These are all opportunities for the struggling Ilyushin Group. Lozko is not the only one keeping an eye on this delegation. ?According to the agreement during the assembly of the Aviation Export Company, other major participating members such as Tupolev, Sukhoi, Kamov, and Yakovlev also sent representatives to accompany them, ready to see if there were any opportunities that could be missed. ?In addition, the mayor of Tashkent, Shokaiti Mirziyoyev, also joined the queue to pick up the plane with his own team. ?Before the alliance was disbanded, the Chkalov Aviation Factory was almost the pillar industry of the entire city and even the entire Uzbekistan, and it made a huge contribution to the local economic development. As the number of orders has plummeted in recent years, the local economy has also been directly affected. So the latter also hopes to keep some orders from China locally. Even if not talking about profits and taxes, it can at least solve part of his urgent employment problem. The two people have a common appeal in this regard. But thats where it ends. As a senior executive of the Ilyushin Group, Lozko knows very well that it is impossible to leave aircraft manufacturing capabilities in an uncontrolled place for a long time. In the long run, new production lines must be established in Russia. Today, taking orders is just to maintain The Chkalov plant only has experienced workers and engineers. Once the situation improves and the new plant is built, most of the production capacity and even employees will be taken away. Mirziyoyev, who represents the local forces, certainly does not want to see such a situation. He hopes to keep Ilyushins production capacity in Tashkent. Two strangers waited on the tarmac of Tashkent International Airport for about twenty minutes with the pick-up team, and finally saw a large, four-engine wide-body passenger plane emerging from the light clouds and slowly descending. Il 86? ?Chkalov Factory Director Kucherov, who was standing behind Lozko, was the first to recognize the model of the aircraft: And it should be a new aircraft that was just delivered to Voronezh the year before last. The wings and the front and rear sections of the fuselage were all manufactured by our factory. Mirziyoyev, who was standing nearby, was attracted by these words and looked over here, and blurted out in surprise: "After 1991, have you delivered new aircraft to China?" Obviously, his knowledge of the situation at the Chkalov Factory was limited to the surface, and he had no idea what had happened in the past few years. In fact, Mirziyoyev was originally an important member of the open and liberal factions after the disintegration of the alliance. Although he once worked as a mechanical engineer, he has been out of technical positions for a long time. In addition, he has just taken office, so he is not so Knowing the current situation of the factory is understandable. ??But this still made Director Kucherov frown slightly unhappy. After 1991, the Chkalov Factory and the Ilyushin Group broke away from their affiliation and turned to cooperation. As the director of the factory, he naturally became the focus of the struggle between the two parties just mentioned. Both sides hope to win his support, and the unintentional question just made obviously made the local faction lose a lot of points in Kucherov''s heart. Lozko naturally would not miss this opportunity, and replied calmly from the side: "Yes, in 1992, China''s Beijiang Airlines purchased three IL-86 aircraft from us. At that time, in order to solve the livelihood problems of several manufacturing plants, some parts were specially distributed to Kazan and Tashkent for manufacturing. This should be one of them. In fact, the Il-86 was first completely produced by the Voronezh factory, but the scale of the factory was relatively small. When preparing to upgrade equipment to manufacture a newer generation of Il-96 passenger aircraft in the late 1980s, a considerable part of the production capacity of parts was transferred Arrive at Meletz PZL factory and Chkalov factory. The fact that they specifically chose to take this plane here should be a signal of goodwill. Lozko straightened his suit and looked up at the passenger plane that had landed in the distance and was about to enter the taxiway, with an excited look on his face: "We must seize the opportunity. This time I have talked with Minister Vladkov of the Ministry of Foreign Economic Relations. As long as the price offered by the Chinese is sincere enough, he will not set the price for the Chkalov factory''s products. Exit Threshold. A few minutes later, the IL-86 numbered B2016 stopped steadily in front of everyone. The first person to come down the gangway was a general who looked to be of a certain age. It was Huai Guomo who had previously completed the negotiations with the EU delegation with Chang Haonan. Most of the members of the delegation following him were also wearing military uniforms. Lozko, who was already prepared, took the lead to greet him: Welcome to you, I am the head of delegation of United Aviation Technology Export Company, Sergei Lozko, and the director of marketing department of Ilyushin Group. Huai Guomo, deputy director of the Commission of Science, Technology and Industry for National Defense in charge of foreign military and technical cooperation. ?The two parties spent a few minutes getting to know each other, and then boarded a convoy arranged by Tashkent locals, preparing to go to the Chkalov Aircraft Factory. As the main large aircraft production base before the disintegration of the alliance, it can actually directly take off and land aircraft of the size of the IL-86. ??But Mayor Mirziyoyev played a little trick. He planned to take the Chinese delegation to see other valuable places in the city on the way. If the other party is willing to invest, thats even better. Even if he wanted to buy it directly, he could offer a relatively low price. ??By the way, you can also make a fortune from it. ? Its just that this plan obviously did not take into account the identity of the delegation members. ? The Commission of Science, Technology and Industry for National Defense is not responsible for commercial affairs. Moreover, China in 1997 was not like twenty years later. It really could not spare any spare money for foreign investment. ??It just so happened that Huai Guomo, the person in charge of China this time, had a technical background and had a lot in common with Lozko, who was also an engineer. So on the way to the destination, Mirziyoyev did not even have much chance to intervene in the conversation of the other two people. (End of this chapter) Chapter 266 IL 114? Did you make something wrong? Chapter 266 Il 114? Did you make something wrong? ??The convoy circled the streets of Tashkent for more than an hour before finally arriving at the Chkalov Aircraft Factory in the east of the city. The atmosphere inside the extended Mercedes-Benz that was lively just now began to become a little heavy the moment it drove into the factory gate. Through the side window glass, Huai Guomo could clearly see the tall workshops in the factory, the vast runway, and several old-model Ilyushin aircraft parked randomly on the tarmac not far away. Everything tells the glorious past of Asias largest aircraft manufacturer. But as long as you pay a little attention, it is not difficult to see through the decorative flowers and plaques a few pieces of broken glass on the side of the factory building, as well as the weeds growing out of the cracks in the stone slabs on the ground. ??Although it has only been a little more than five years since the alliance disintegrated, the general level of superficiality can no longer even cover up the slight dilapidation and desolation that has been revealed here. ??The convoy slowly passed a row of IL-62 aircraft in varying conditions. Judging from the condition of the aircraft, no one had maintained them for a long time. On December 25, 1991, these aircraft may have been sent here for overhaul or upgrade, but everything that followed made them lose their users and were forced to stay in this inland Gobi city forever. ?Perhaps noticing Huaiguomos gaze, Sergei Lozko broke the air that was about to freeze at the right time: These are old models that your country is very familiar with. They are outdated today. I will show you some of Ilyushins latest aircraft later. The Chinese entourage quickly translated this sentence to Huai Guomo. The latter was stunned for a moment, and then laughed heartily: Okay, lets wait and see. A few minutes later, the mighty motorcade stopped at the door of the No. 2 final assembly workshop of the Chkalov Factory A large factory with the capacity to produce hundreds of aircraft per year is naturally unable to put all models in the same place for final assembly, as that would be difficult to improve efficiency. After getting off the bus, the first thing was a brief welcome ceremony. ??As the leader of the Chinese delegation, Huai Guomo naturally had to go through the three-step standard process of shaking hands, speaking, and taking photos. Finally, I received the bouquet and gifts from the dressed-up Uzbek girl. Chkalov Factory obviously put some thought into it. ?But his attention was not on that. I haven''t felt it from a distance, and now I can feel the amazing scale of the factory. Although the two assembly workshops are separated by number, the buildings themselves are actually connected together. From Huai Guomo''s perspective, the entire production building can be said to be continuous, like a hill. As the leader of the Science and Technology Commission in charge of the national defense industry, he has naturally seen the aircraft manufacturing factories in China in the past. But I have to say that arriving here today has refreshed his understanding. ??Although he had concealed his surprise well, his absent-minded state was still noticed by Lozko. Fortunately, he just thought that these Chinese soldiers didn''t like red tape very much and just wanted to get to the point as quickly as possible, so he didn''t think much about it and just motioned to Kucherov next to him to quickly end the process. When a group of people actually entered the assembly workshop, they felt an unconcealable sense of desolation. At a glance, more than a dozen semi-finished aircraft with varying degrees of completion were parked on the ground in an orderly manner. In the corner on the other side of the factory were several fuselages and wings that had not yet entered the final assembly process. As for other parts , and machines and equipment are even more difficult to count. However, only two of the aircraft that looked nearly complete were surrounded by assembly frames, with several workers climbing up and down with tools. ?Huai Guomo, who came from a technical position, quickly realized that they were not assembling aircraft, but only performing necessary maintenance. As a complex industrial product with a complex structure and an extremely large number of components, the final steps of aircraft assembly are difficult to complete with any automated equipment and are highly dependent on experienced workers. However, human control of position, especially long-distance position points, is obviously not accurate enough. Therefore, in order to improve the accuracy and efficiency of aircraft assembly, engineers will design based on a model''s positioning point position, positioning method, fixation method, shape and other factors. Develop specialized aircraft assembly frames. For frame-assembled aircraft, without this equipment, the final assembly process is simply impossible. Obviously, except for the two lucky ones, the other semi-finished products should already be in a semi-abandoned state. Seeing this scene, Huai Guomo felt his heart bleed. ?Although these aircraft may not look big, in terms of quantity, they are almost equivalent to China''s entire year''s production. But as he moved forward, the full view of the two planes gradually appeared in his field of vision. An extremely familiar feeling arises spontaneously. ?Hai Guomo frowned, and a model that he had seen in the information when he was negotiating with the European delegation flashed through his mind. Is this thing similar to MA60? Huai Guomo turned his head and asked Liang Zhuoping, the chairman of the Aviation Industry Corporation of China next to him, in Chinese. You cant blame the former for not having much impression. In fact, before Chang Haonan helped 603 Institute to make major changes to it, which greatly improved its commercial competitiveness, the MA60, or the past Yun7-200A, was basically a small machine. transparent. And more importantly, before this year, although this model was nominally a dual-use model, it was actually managed by the Civil Aviation Administration of China, and it only took three months for the Science and Technology Commission to fully take over. Hai Guomo spent more than two months dealing with negotiations. ?However, before Liang Zhuoping could answer, Lozko, who was walking at the front, had already arrived next to the plane, turned around and introduced: "This is an IL-114M that is about to complete final assembly. It has 60 seats and a maximum take-off weight of 21 tons. It can fly 1,000 kilometers at a speed of 500km/h when fully loaded and 2,800 kilometers under a commercial load of 3.6 tons. The performance is completely comparable to the European ATR42, which is a very good regional airliner... Pay attention to the cables on the ground and dont fall. "In terms of positioning, this model is planned to replace the past An-24, which is the Y-7 transport aircraft produced under your country''s license. It also has a certain inheritance relationship with the old model in terms of technical details and flight operations, regardless of the manufacturer. Users can adapt quickly..." Obviously, Lozko had done some homework before this trip. But not much. ? He ??knows that Chinas civil aviation industry is in urgent need of advanced models. There are a large number of old aircraft such as Y-7 in service on the front line, and the aviation manufacturing industry is also undergoing transformation and upgrading. ??As long as this trip can be carried out one year in advance, the IL-114M in front of us will be extremely attractive to China, which is struggling to even transport the 7-200A. However, when MA60 has already secured an Italian partner and is about to obtain airworthiness certificates from 15 EU countries, it seems a bit inappropriate for you to tell us this again... Mr. Lozko. ??Taking advantage of the opportunity when the other party finished speaking, Huai Guomo interjected with a complicated mood: I thought maybe I should reveal some secrets to you in advance. "What?" Evidently, the Russian is fashionable and feels good about himself. "According to the agreement reached between China and the EU some time ago, the MA-60 passenger aircraft improved by our aviation industry on the Y-7 platform should soon enter the European market, so there may not be much demand for the model you just mentioned. " After the translator translated the sentence into Russian, there was silence. Lozko suddenly felt a little dizzy. (End of this chapter) Chapter 267 Let’s take a look at the big plane in the distance, family Chapter 267 Lets take a look at the big plane in the distance, family members ?? Regarding the mutual recognition of airworthiness of regional aircraft between CAAC and JAA, there is no official news released yet, and the last agreement disclosed by the two parties in the media did not include this item. Hence, all Russian personnel, including Lozko, were completely unprepared for this incident. The initial reaction was of course shock. ?Although almost all members of the delegation have dealt with China, some of them can even be called veterans, and they are well aware of Chinas development over the years. But how did this suddenly switch to the episode about selling planes to Europe? ??I always feel that a lot of plot has been omitted in the middle? We are all professionals in aviation, not to mention that Chinas aviation industry was originally born out of the Soviet Union. Logically speaking, there should not be such obvious mistakes. ?Of course, Huai Guomo also played a little word game here. What he actually said was that it can be exported to Europe. The airworthiness mutual recognition process between the two parties has basically reached the final stage of retreat. Negotiations on the substantive content have been completed. There are only some procedural issues that need to be determined and communicated. If we move quickly, these will be announced to the outside world. God''s work. As soon as the documents are signed, the MA-60 that has passed the airworthiness certification in China can be legally sold to Europe for registration and operation. As for how much it will sell, and when this model, which is still in the test flight process, will be delivered, that is another matter. ?But even so, it was enough to confuse the Russians on the opposite side. After being shocked, Lozkos first feeling was confusion. He even stopped introducing the aircraft further and went directly to the staff of United Aviation Technology Export Company who was responsible for external technical tracking to ask about the situation. This person is an engineer who used to work in the Antonov Design Bureau. He worked in China for a period of time more than a year ago, and later switched to the Yakovlev Design Bureau. The answer he got was that he didnt know what was going on. The other party said that when he went to work in China, the latter obviously did not have the ability to design and manufacture advanced aircraft. At that time, the best aircraft it could produce on its own was just the Y-8, which was a copy of the An-12, which was roughly equivalent to that of the 1970s. initial technical level. ?Its just that some people are happy and some are sad. Compared with the frightened and even a little panic on the part of the Ilyushin Group, the representative of Tupolev who was hidden in the crowd shone brightly. ??IL 114 is basically the lowest link in the civil air transport system planned before the alliance was disbanded. The reason why Lozko came up with this model first was that it was similar to the previous An-24 in specifications and had relatively low technical difficulty. The production lines that produced An-12 and An-24 in the past were also easy to convert and could be produced relatively quickly and quickly. As a result, I think it should be easier to impress the Chinese side. The production cycle of higher-level aircraft is longer, and the corresponding costs and parts that require cooperation between the two parties are also greater. Even if the Ministry of Foreign Economic Relations does not set restrictions on technology exports, it will probably be difficult for China to do so in a short time. See the effect. ??This kind of complex project involving cooperation between the two countries will easily lead to nightmares if it is delayed for too long, especially in this type of industry with high investment and long return cycle. ? This is the conclusion given by United Aviation Technology Export Company after appointing a special person to analyze the assembly of MD82/83 aircraft and MD90 aircraft by Hufei. But now, the situation is obviously different from our previous expectations. ??Although it is not clear how the Chinese did it, they are obviously not interested in small aircraft of the Il-114 level. And Ilyushin Company does not have a larger model. Following the next step is the Il-96, which has a maximum takeoff weight of nearly 300 tons. Obviously a bit out of class. In the middle is the opportunity for their Tupolev Group. The words were divided into two parts. On the side of the Chinese delegation, Huai Guomo did not care about the short-term chaos that the other party fell into. Instead, he walked forward with Liang Zhuoping and took a closer look at the most completed Ilyushin 114M. Although the MA60 can be considered a relatively successful model overall, in order to enter the civil aviation market, many key subsystems still use Western shelf products. ?For example, two Pratt & Whitney PW127Js are used for power. ??Although Pratt & Whitney has not been acquired by Raytheon these days, it is still impossible to obtain a license for a model equipped with this engine to be used directly for military use. As for the same level model from China... Turboprop 5A, lets not mention it... ?However, Huai Guomo certainly did not show too much interest on the spot. He just remembered the model number on the nacelle on the side of the engine. TV7M-113. It should be a product of Klimov Design Bureau. You can have some private contact after you go back. At this moment, the Russian delegation finally figured out their thinking. ??Lozko found Huai Guomo again: I wonder how you solve the airworthiness certification issue for commercially operated aircraft exported to Europe? Compared to the issue of aviation technology, this was what puzzled him. A few years ago, Russia also tried to engage in aviation cooperation with Europe, but the results were not smooth. The main reason is that there are too many countries over there. Negotiating with more than a dozen countries at a time would make everyone feel numb. ?As long as you have enough chips, it is not difficult to deal with France and Germany, the two leaders, but there are always some small countries that will jump out without warning and cause trouble. Obviously controlled by the other side of the ocean. Now that China can overcome this problem, they are really curious. ?Of course there is also some envy mixed in. Well...According to the requirements of the EU, the details of the current negotiations cannot be made public yet, but it should not be long before..." Huai Guomo used the Europeans as a shield, and then changed the subject: In addition, since you invited such a large team like us to come here, you must not be able to bring out only this kind of regional aircraft. How about we open the skylight and speak openly and show some sincerity directly? Lozco, who just now felt that he had a clever calculation, was mercilessly slapped in the face. Now he is also a little embarrassed and hurriedly got off the donkey: "Of course not. In fact, this is just the beginning of this trip. I just didn''t expect that you could come up with a model comparable to the ATR42 in such a short period of time. As for your sincerity... please follow me. Lets go to the No. 1 assembly shop to have a look. Actually, our model cannot be said to be equivalent to ATR42. Huai Guomo followed the other party and said casually. "oh?" ??Lozko thought it was the Chinese who had some special negotiation skills. The main reason why we can enter the European market is that we are more advanced than them. If you also have development needs in the field of regional aircraft, we can reach some technical and policy cooperation, of course, on the basis of equal exchange. ?After the signing of the last agreement with Europe, Huai Guomo has also experienced how comfortable what Chang Haonan calls "technology for technology". ??At least now they are on equal footing, playing tricks on each other. In the past, when introducing technology, China was basically in a passive position, being completely manipulated by others, and could occasionally gain some advantages. ?Especially when I heard Chang Haonan talk about the story of three Europeans who wanted to buy a "premium version" of software but were politely rejected. To sum it up, its a pleasure. Ahem ??Lozko almost went dark. Good guy, I havent sold anything yet, but the other party has taken the initiative to do business. But at this time, no matter what he said, he looked like a clown, so he had to speed up his pace and walked into the wider workshop No. 1 with a large number of people behind him. Huai Guomo took a deep breath and his expression finally turned serious. ?Several IL-76 transport aircraft that have been completed or will be completed soon are parked inside. Judging from the relatively new condition of the machine and the assembly frame next to it, they should not have been abandoned yet. In other words, they are all equipment that can be obtained immediately. ?This is the scene he wanted to see when he led the team this time! (End of this chapter) Chapter 268 The God of Wealth of the Air Force Chapter 268 The God of Wealth in the Air Force The Chinese Air Force currently has 14 second-hand IL-76T/TD transport aircraft purchased from different channels. ?Four of them are set aside to be modified into early warning aircraft. Although there are very few in number, they are not new machines and the related tactics are not very proficient yet. But after all, the military has been able to experience the performance of large transport aircraft. It is easy to go from frugality to luxury, but it is difficult to go from luxury to frugality. Can not go back. At a load that is three times that of the Y8, it can fly three times as far as the Y8! The long-distance transport aviation arm submits its annual year-end summary, which can be summed up in one sentence. The big plane smells so **** good, hurry up and get more! ?However, the voice of the troops is high. Considering China''s stretched military expenditure in the past few years, it really cannot afford to introduce more IL-76 or other large transport aircraft. In addition, large transport aircraft are still not as urgent as several advanced fighter models also equipped by the Air Force, so this matter has been shelved. But in 1997, the situation changed somewhat. The secondary reason is that due to a series of events in 1996, total military expenditures soared by nearly 10 billion yuan as planned. ?At the same time, because the development leadership of several civil aviation models was taken back to the Science and Technology Commission system, there were billions more on the books. The main reason is that when the 1997 annual budget was compiled, everyone was surprised to find that because many expensive projects such as the J-8C, Kunlun engine and Thunderbolt 11 were completed ahead of schedule in the second half of 1996, there was a large number of The project R&D and equipment procurement costs that were originally planned were saved. The total amount of this money is not more than the previous two, that is, it is on the level of several billions. But there is a considerable part of the foreign exchange quota. In the 1990s, this was very popular. Mainly due to the huge amount of money saved during the introduction of No.11 Project technology ?According to the original psychological expectations of China, including technology transfer, equipment, materials, labor and other costs, the total contract amount that needs to be paid to the Russian side during the entire project period is probably between US$7 billion and US$8 billion. The one-time payment to be made in 1996-97 is nearly US$1.5 billion. However, Sukhoi made huge concessions during the negotiation process last year, lowering the purchase unit price and at the same time reducing the number of aircraft that China was required to purchase directly from Russia. As a result, this expenditure was actually reduced by one-third from the original plan. About one. This means that in 1997 alone, there was almost an extra US$500 million that could be spent on introducing other technologies or equipment from abroad. This can be regarded as a windfall. Just in time, the Ilyushin Group and the Chkalov Factory jointly invited a delegation from China to visit. The Air Forces thoughts naturally became more active. ?This is how the trip led by Huai Guomo came about. ?Before departure, Ding Gaoheng listed and summarized these things at a small internal meeting held by the Science and Industry Committee. The original intention is to improve everyones self-confidence. But as soon as the table was displayed on the big screen, someone noticed the bright spot. It seems that the same name is vaguely behind these things... Whether directly or indirectly, Chang Haonan played a very important role in it. In this regard, Ding Gaoheng commented humorously: It seems that our little comrade can still be regarded as the God of Wealth of the Air Force... At the beginning, when Huai Guomo came to Tashkent this time, he even wanted to bring this "God of Wealth" with him. ?The latters whimsical thinking and overall perspective in the previous negotiations with the European Union made him quite unforgettable. ?Unfortunately, after asking, I found out that the other party was helping the Electronic Technology Group deal with a difficult issue and could not escape for the time being. After careful consideration, he still believed that it was more important to let Chang Haonan solve technical problems. After all, in the several times mentioned earlier, the latter was also solved through technical means. After a brief fugue, Huai Guomo''s attention returned to the two rows of large aircraft parked in the factory. ?Kucherov, who had not spoken much just now, finally came to the front: There are now a total of two Il-78 tankers in our factory that have been basically completed. Only the Il-78 tankers that need some preparation work are left, which are the two farthest from us. Following the direction of the factory director, Huai Guomo saw two aircraft at the end of the queue with the words CCCP spray-painted on their fuselages. Lozko next to him opened his mouth, as if he wanted to say something, but in the end, no sound came out. Although the Chkalov Factory does not have the ability to manufacture aircraft from scratch, it has no problem completing these semi-finished airframes. From a legal perspective, it is certainly possible to discuss what proportion of the aircraft remaining in the Chkalov factory belongs to the Ilyushin Group. ??But that doesnt make sense. The disintegration of the alliance is a mess. How many things can be snatched from the chaos depends on each person''s ability. Now even if he comes up with tricks, Kucherov cannot hand over these things parked in the assembly workshop. ??At this moment, we are at a critical moment when the Ilyushin Group and the local forces in Tashkent are competing for the legacy of the Chkalov Factory. There is no need to offend the key figures among them with these bits and pieces. Under the leadership of Kucherov, we walked near the Il-76 final assembly line. The first four aircraft are also IL-78s, and the completion rate is about 70%. With sufficient financial support, they can all be completed within half a year. "The first, that is, the four Il-76TDs we are passing by now are military transport types. They are about half complete. The main reason is that the power system is not yet in place. If the Perm Engine Factory can provide enough D30KP2 engines, then it will be very Fast, at most... one and a half to two years." Why are these four planes taking so long? Liang Zhuoping, who was following Huai Guomo, asked curiously. After all, the complexity of IL-78 is actually higher than that of IL-76. Because we cant produce so many aircraft at the same time as before, we have to queue up, and those at the back will naturally be slower. ??Kucherov did not conceal this matter - although he had made a lot of superficial efforts to welcome the arrival of the Chinese purchasing delegation during this period, the current situation of the factory was still obvious to those who knew the inside story at a glance. Even if he didnt say it, Chinese people would be able to understand everything just by spending a few days wandering around Tashkent and talking about everyday things. This No. 1 workshop used to be able to assemble 12 200-ton large aircraft at the same time, but now... it can only guarantee 3-4 aircraft. The old factory directors voice was a little lonely. ?However, he turned around and assured Liang Zhuoping and Huai Guomo: "Even so, our cost performance and efficiency are already very high. No other place in the world can guarantee to provide you with 10 brand-new strategic transport aircraft within two years, and the price... can be discussed later. " ?This is not a lie. In fact, there are only three suppliers in the world that can provide strategic transport aircraft. ?Among them, McDonnell Douglas or Boeing''s C17 will definitely not be sold to China. Antonov does not have the ability to produce the An-124. Moreover, due to the restrictions on take-off and landing conditions, there is no competitive relationship between the An-124 and the IL-76. ?Chkalov Factorys only competitor is actually the 800 Il-76s it built in the past. ??If the price is too high, it is entirely possible for Chinese people to turn around and buy used goods. You must remember that this was only the beginning of 1997, and the second-hand aircraft in the hands of the CIS countries were in good condition. Not to mention, the Uzbek Air Force itself has a dozen unused Il-76s waiting to be sold. As for the business of overhauling the Il-76, it can be completed by places such as the Belarusian 571 Aviation Repair Plant, and the competition is fierce. Why leave it until later, I think we can start talking today. With the efforts of the profitable Mirziyoyev, the negotiations between China and the Chkalov factory on the current 10 aircraft went very smoothly. They did not even need to sit at the negotiating table. They were directly on an Ilyushin 76. A verbal agreement was reached in the cabin. Since the factory was in a hurry for money, and these aircraft were originally free for Uzbekistan and did not involve any research and development expenses, the price of a package of 10 aircraft was only US$108 million without worrying about it. ?Of course, for China in this era, this is already a huge deal. But if someone saw this price in Chang Haonan in Yanliang, they would definitely call it outrageous. Seventeen years later, in 2014, China purchased three second-hand IL-78s from Ermao, with a unit price of US$45 million. Even if the inflation rate over the years is calculated, the new machine with a unit price of 9.6 million can indeed be regarded as a clearance sale. ?Of course, the two parties still held a brief ceremony the next day and finalized the formal contract. After all, they are worried that the other party will regret it. ?However, subsequent negotiations with the Ilyushin Group and the Chkalov Factory on the purchase of the new Ilyushin 76MF transport aircraft progressed slowly from the beginning. To put it bluntly, second-hand aircraft are assets of the past alliance, and they can be sold at low prices. But new aircraft, especially those that have just completed their first flight and have not yet been fully finalized, are another matter. ?Lozko has set the unit price of the aircraft at US$33 million each, and must purchase at least 36 aircraft in the next 10 years. ?Hai Guomo has no objection to this quantity, but the unit price of US$33 million is still too high for China. Project No. 11 has saved a total of almost 2 billion U.S. dollars. You cant just hand over more than half of it to Ilyushin by changing hands, right? This is external procurement in a pure sense and does not involve technology transfer. After several days of confrontation, neither side was willing to give in. ?So the negotiations reached a deadlock. How about we contact that comrade, the God of Wealth, and ask him if he has any opinions? After the end of countless rounds of negotiations, Liang Zhuoping put forward his own suggestions while talking and laughing. (End of this chapter) Chapter 269 Drive the tiger to swallow the wolf, An 70 and Il 76 Chapter 269: Driving away tigers and devouring wolves, An 70 and Il 76 When Chang Haonan first learned that he had a telegram, he was still a little confused. ?The right to know belongs to the right to know. It only means that he has the authority to know. It does not mean that someone will specifically inform him of everything - That is the kind of treatment only supervisors have. So Chang Haonan didn''t know about the various things that happened in the Science and Technology Commission during this period. ?Furthermore, the method of transmitting information via telegraph also gave him a sense of illusion as to whether he had traveled forward again. ? It is now the mid-to-late 1990s. Although the telegraph service still exists, there are basically no people using it, so that this is actually the first letter he has received in his two lifetimes... ?However, when he got the telegram manuscript from the confidential room of Factory 172, all his doubts were solved. In some areas of encrypted communication, telegraphy still has its place. Until more than 20 years later, some armed forces stationed in remote locations still retained telegraph operators and telegraph transmitters just in case. ??This is an extremely long message that can bankrupt an ordinary employee on a commercial telegram. The content is so detailed that it took Chang Haonan a long time to read it from beginning to end, even if he read it ten lines at a time. After reading the first two pages, his first reaction was: Holy shit, am I so awesome... Although Chang Haonan knew that he had done a lot of things in the past nearly a year, as a technician, his main concern was what difficulties he had overcome and how much time he had saved compared to his previous life. For this series of operations, I havent thought much about how much money I can save the country. But in this telegram, Huai Guomo inadvertently mentioned somewhere that the funds for purchasing these large aircraft were saved from the No. 11 Project. That is to say, if we only count foreign exchange, it will be at least at the level of one billion U.S. dollars. Not counting RMB. ?Its no wonder that even he himself feels a little surprised by the attention he has received in recent months. ?According to the goal he set for himself when he was just reborn, he was to increase his influence enough to influence the direction of policy within 3-5 years. Now it seems that it will be achieved in almost a year. Although this impact is still brought about through indirect means. ?However, Chang Haonan was in a good mood and decided to have a good meal to celebrate in the evening. ?However, the content behind the telegram made him a little bit dumbfounded. This time the Committee of Science and Industry sent such a large delegation, naturally it was not just to buy 10 aircraft that were about to be completed, but also to reach a longer-term cooperation with the Ilyushin Group and to conduct preliminary discussions with the Tupolev Group. The contact paved the way for the domestic passenger aircraft plan proposed by Chang Haonan. But now, due to differences between the two parties on price and payment methods, the negotiation progress has stalled on the second step. It was not that the Chinese delegation had not thought about negotiating with Tupolev or Perm first, and using the competitive relationship between these companies to create a prisoner''s dilemma, but the other party changed their past attitude of fighting each other and gave him the answer The caliber is surprisingly consistent. After a few days of getting to know each other, the former learned that Damao had established a new company that was responsible for the export of aviation equipment and technology. Therefore, they could exchange what they had, and the effect of the divide-and-conquer strategy was greatly reduced. Although Huai Guomo did not explicitly make any demands in the telegram, but only asked Chang Haonan if he had any thoughts on this situation, considering that it mentioned many times that the test flight of the New J-8C last year had a role in promoting the negotiations on Project 11 , the meaning hidden between the lines is actually very obvious - Xiao Chang, can you do that job again last year? Chang Haonan looked at the manuscript paper and pen left by the director of the confidential office in front of him, and wanted to write two words: No. There are limits to human abilities. He was able to complete the August 3rd Project in a short period of time because the technical difficulty of this project is within the reach of China''s current level. But a strategic transport aircraft. Sorry, this is outrageous. Its not a matter of advanced or not, just the feature of big means that the difficulty is high. ? Structural design has never been an area that China Aviation Industry is good at. Let alone the 200-ton class, in the previous life, when designing the 40-ton ARJ21, a lot of foreign aid was invited. Even if Chang Haonan spares all his scientific research points and comes up with a design, Factory 172 will not be able to turn the drawings into a real aircraft. You dont have the ability to know. Heavy-duty die forging press, skin stretching machine, hot press forming machine, directional solidification furnace, high-precision CNC machining center Nothing at all. Chang Haonan also wants to do the big plane thing, but he has to take his time and can''t think about eating a fat man in one bite. ?He shook his head and was about to pick up a pen and think of a more tactful way to show that he really couldn''t do it. But when he had finished writing and was about to write the main text, an idea suddenly flashed in his mind. At this point in time, there may not be no chance at all. The big hair is not enough, there are still two hairs. You can absolutely drive away the tiger and devour the wolf. ??There is a very suitable model that can be used to promote this strategy. 70. As the deputy director in charge of foreign military technical cooperation, Huai Guomo must know this model. But people of this era may not know some of the details. ?The first prototype of the An70 made its first flight in 1994, but crashed after colliding with an accompanying An72 during a test flight in 1995 due to non-technical reasons. Antonov almost lost his pants before building a second prototype, which rolled off the assembly line at the end of last year. Chang Haonan cant remember exactly when this aircraft made its first flight. It should have been in April or May 1997. ?In the original timeline, Da Mao was still vacillating between the model Tu 330 and the An 70, which was still completely self-developed but had to be started from scratch. It would have to wait until about the second half of 1997 before starting joint development with Er Mao. But he had read the memoirs of a member of the An70 design team in his previous life. ?At this time, the Antonov Group was already in trouble internally and externally. The higher-ups only wanted to sell off various high-quality assets quickly and at low prices without caring about their lives. There were still tens of thousands of employees below who were waiting for their wages to be paid. ?The design team even thought about packaging and selling all the technical information of the entire project if someone could offer 800-1 billion US dollars. The comprehensive transportation capacity of the An-70 is definitely not as good as the Il-76, but looking only at the maximum load capacity, it is still 47 tons, which is equivalent to the early Il-76. And its not just a new aircraft, its a completely new design from the ground up. ??If we can seize this time window, we can put enough pressure on the Ilyushin Group. ?Thinking of this, Chang Haonan quickly changed his previous thoughts and reorganized the language. Of course, judging from past history, Ermao is not a good partner for long-term cooperation due to the high degree of instability in the domestic situation and the fluctuations between left and right. So the first choice strategy is to use two cents to make a big one. ??But if Ilyushin really can''t get enough oil and salt, we can also consider transferring as much An-70 related technical data as possible in the relatively stable period of the next few years to prepare for the subsequent domestically produced large transport aircraft. Its just that if you do this, many of Chang Haonans previous plans will be disrupted. After all, the number of scientific research points he can use is limited, and the system can only process two projects in parallel at most. The most efficient way is definitely to proceed step by step. There should be more in the evening (End of this chapter) Chapter 270 passive radar detection Chapter 270 Passive Radar Detection Even though Chang Haonan had reduced the length of the telegram as much as possible, he still ended up writing about two to three thousand words. And almost every sentence must be carefully considered. After all, many of the details come from the memories of previous lives, so there is definitely no way to write them down directly. In order to increase his persuasiveness, he had to say that the maximum takeoff weight of the An-70 is only three-quarters of the IL-76MF, making it an easier reference in the future. Happily, the core of this proposal, Antonov''s lack of money, is easy to explain. Just say its a guess. Everyone can guess it anyway. It''s just that Chang Haonan knew very clearly how short of money they were, so he dared to make such a bold-looking plan. When this operation was completed, the telegram was handed over to the director of the confidential office who had been waiting outside. The whole afternoon had passed, and it was just dinner time. ?Standing in the cool breeze of early April, the tiredness caused by being bored in the confidential room for an afternoon disappeared in an instant. ?Chang Haonan remembered that a few hours ago, he decided to have a good meal. After hesitating for a moment, I felt that it was a bit outrageous to eat alone. ??Having received many high bonuses (by the standards of this era) and eating and drinking without having to spend any money himself, he can now be considered a wealthy man. ?Finally, he changed direction and prepared to go back and call in the comrades from the 14th Institute who came to Yan Liang on a business trip, and of course Xu Yang. As for the name, lets just say to boost morale and prepare for the next round of electronic warfare pod testing. Anyway, if we count the days, Jinling should have something shipped over. But when he pushed open the door of the research room, he found that everyone inside was already beaming with joy, as if they knew in advance that someone was going to treat them tonight. Everyone, how about we go out for dinner tonight? Although he was a little curious, Chang Haonan, who was in a good mood, decided to talk about the important things first. ??Then he received a dozen looks with the same confusion and surprise: Chang Gong, didnt you go out in the afternoon? "yes." ?Chang Haonan nodded. Then how do you know Guo Gong has thought of a good idea? Yeah, Dr. Xu also thinks his idea is fine. And we simulated it on the previous circuit, and its completely feasible. Everyone was saying something to each other, and Chang Haonan finally understood that this was probably a mistake. So, whats the idea? He took off the scarf around his neck and hung it next to him, walked to Guo Lin and asked. Lin Shikuan from Institute 601 has already become a digital design engineer who can take charge of his own role under the guidance of him and Yao Mengna. He has solved many problems for the aviation industry when Chang Haonan has no other skills. ??It would be nice if it could be reproduced in the 14th Institute of Electrical Engineering. Ahem Hearing Chang Haonans question, Guo Lin instantly became excited. After such a long time, its finally my turn to show off. He instantly switched to sitting upright. Unfortunately, there was no one with enough eyesight to hand over the pen and paper, so I had to take it from the table next to me, which lowered the B level of this set of actions a lot. I thought of a way to specifically confirm the enemys location by detecting the radar signals emitted by the enemy. A specific location? Including distance? ?Chang Haonan instantly became interested. The technology of passive tracking of radar radiation sources has been used in Suppressed Air Defense Operations (SEAD) since the Vietnam War. However, in fact, until the mid-1990s, this detection could only obtain the target''s orientation information, but could not Directly determine the distance between ourselves and the enemy. Of course, for general anti-radiation missiles and electronic interference, this is not a problem, because even if I dont know the target distance, as long as I always follow the direction of the radar wave, I can always find the signal source. However, with the continuous advancement of air defense technology, the signal detectability of the radar itself is constantly decreasing, and the radar emission source can even work while moving at high speed. This results in the traditional single-station passive positioning being unable to continuously and stably track the signal emitted by the radiation source. As a result, a huge registration deviation occurred, and the efficiency of hard-killing radars through the combination of passive detection and anti-radiation missiles declined sharply in the 1990s. ?For example, the AGM88 Hamm could kill almost indiscriminately in 1982, but by 1999, facing the southern army with weaker resistance, the hit rate dropped to a horrific level. ?This situation has also given rise to the third generation of electronic warfare aircraft represented by EA18G. ?Now that Guo Lin said that he can solve this problem, Chang Haonan was indeed a little shocked. Uhthats not possible. ?Guo Lin scratched his head in embarrassment: But radar signals can be sorted in a complex electromagnetic environment and the most threatening one can be effectively identified. This is at least much better than our current method, which can only intermittently obtain target signals. "oh" ?This answer made Chang Haonan''s newly heightened thirst for knowledge drop back slightly. ?But its not bad, at least its an improvement: "tell me the story." "That''s right. A few years ago, someone proposed a transformation algorithm based on harmonic suppression of the autocorrelation function, which can transform the pulse signal TOA from the time domain to the PRI domain, effectively suppressing the harmonics of the real PRI of the pulse signal. , that is, if we assume that the TOA of each pulse is the ideal unit shock function ..." Wait a minute, wait a minute. Chang Haonan directly stopped Guo Lins introduction: I know the PRI, we can go straight to the next paragraph. Uhok. Guo Lin next to him also realized that he was a little carried away and tried to introduce this basic knowledge to the other party, so he quickly collected his thoughts and continued: In short, as the pulse TOA of the jittered PRI signal increases, the PRI algorithms error in the pulse phase factor will continue to increase. In addition, the accumulated pulses of the jittered signal will be dispersed into different PRI boxes. "So I thought that this algorithm can be improved in two ways. One is to introduce the concept of a variable time starting point to avoid errors caused by phase factors, and the other is to use overlapping PRI boxes for anti-shake processing... In short, I The designed process looks something like this. He was obviously prepared. He took out a beautifully drawn flow chart directly from underneath and handed it to Chang Haonan. At this time, the latter had forgotten what he was thinking about going to eat on the way. He picked up the piece of paper and lowered his head to think. After looking motionless for more than ten minutes, Chang Haonan finally raised his head again and looked at Guo Lin next to him: The idea is very complete, its pretty good for a person to think of it like this. "I''m not the only one. Other comrades have also helped me correct some things these days. Fortunately, judging from the test results, the repeated frequencies of the three groups of signals can be identified simultaneously through an improved PRI transformation calculation, and There are no false PRI peaks, and the processing capabilities for strong jitter signals have been greatly improved. ??Guo Lin was a little embarrassed and smoothed his hair. ??He intentionally did not consult Xu Yang and Chang Haonan before this afternoon, just to see if he could figure this idea out at his own level. Its a good idea. However, just identifying target signals and using electronic jamming for soft kills may not be enough in the battles facing the new century. I am a straightforward person who likes to cut grass and roots. If I dont blow up the enemys radar, it is always a hidden danger. ?Chang Haonan put down the paper in his hand: But having said that, your idea inspired me. "On the basis of being able to effectively sort radar signals in complex environments, there is no need for us to focus on anti-radiation operations... We should be able to use some means to allow aircraft to use passive radar to directly have the ability to detect and track targets. , I mean, even if the target does not have the radar turned on, of course it would be better if it is the target with the radar turned on. " Ah this? Guo Lin''s expression became a little stiff. ?Chang Haonan also noticed that the other party seemed to be a little bit shocked: "However, your algorithm still has academic value. If it is published, it may be difficult to publish it in professional control journals, but there is still hope for journals that intersect aerospace and control disciplines, such as IEEE Transactions, Aerospace and Electronic Systems." Is it really okay to publish this? As an employee of Institute 14, I am still sensitive to this. No problem, the PRI algorithm itself is not a new thing, and it is quite basic research. Instead of holding it in your own hands, it is better to publish it so that more people can see it. The key to implementing it into a specific model is the part I just thought of. ?This time Guo Lin was hit even harder. (End of this chapter) Chapter 271 Hunting hunters, annihilating Hongdian 7 (10,000 per day) Chapter 271 Hunting Hunters, Annihilating Hongdian 7 (10,000 per day) Fortunately, Guo Lin is used to this situation. Whats more, according to Chang Haonan, its not a big loss if you can publish a good journal. At least it can be used when evaluating senior professional titles in the future. I need some time. Chang Haonan had already formed a general outline of this idea in his mind, but the more he dug deeper, the more he realized the complexity of this thing. It was definitely not something he could calculate on the spot in this conference room with a piece of paper and a pen. of: Researcher Xu, do me a favor, this time it may be a bit complicated. No problem, what do you need from me? ??Xu Yang stood up and followed Chang Haonan to the nearby computer room. Improve some algorithms, of course its just some of my ideas now Only Guo Lin and others were left looking at each other. Guo Gong...what we are going to do next is... ?Another colleague who was quite confident with Guo Lin was also confused by this sudden change of situation. Sigh...lets sort this thing out first. According to Chang Gongs advice, publish IEEE Transactions, Aerospace and Electronic Systems, which can be considered a small top journal... Yan Liang received brand new components from Institute 14 the next day, but Chang Haonan asked that the modification work on the No. 2 pod be put on hold for the time being. ??He has proven the feasibility of this new theory through the system, and the next step is to implement the algorithm model step by step. Once completed, it can greatly improve the performance of the planned JH-7 electronic warfare aircraft. It is even possible to rely on this technology to directly track targets beyond the normal radar detection range! Four days passed quickly. ?Chang Haonan and Xu Yang gathered everyone from the 14th Institute back into the research room. You should all have read the paper on volumetric Kalman filtering that Researcher Xu and I published? Chang Haonan skillfully took the new pen and paper from Guo Lin and asked the engineers around him. ?Everyone nodded: Of course I have. Theoretically, by applying the CKF algorithm to the nonlinear observation equation, radar registration bias correction and target state prediction can be achieved. Combined with maximum likelihood estimation, target data can even be processed in batches..." Chang Haonan first briefly introduced the ideal situation, which is not difficult for everyone to understand. But in actual applications, we will definitely miss some signals, and there will be a lot of clutter in the area. The CKF algorithm is actually not that easy to use. So faced with this reality, instead of blindly trying to avoid these irrelevant third-party clutter, we should find ways to use them to enhance passive detection of targets. Using third-party clutter? ?Another engineer behind Chang Haonans eyes lit up: "I have a younger brother who serves in the submarine force. I heard from him that during the Cold War, nuclear submarines from the East and the West had a tactic, which was to lay a mine at a known location and then detonate it at a specific time. Using the sound waves generated by the explosion of the mine, the entire An active sonar detection of targets in the area without exposing oneself is much better than pure passive sonar. ??Someone can compare his ideas in this way, which is a bit surprising to the former: "Yes, the mine you are talking about is our third-party signal source. It can be a civilian weather radar, a signal tower, or even radar waves emitted by other friendly or enemy forces in the area. But the stronger and more regular the signal, the better the effect will be. Of course, Researcher Xu and I also combined the sequence difference histogram method to further improve the PRI algorithm mentioned by Guo Gong. The combined effect of the two methods will be a surefire success in electronic warfare. "However, the speed of naval warfare is measured in minutes, while the speed of our electronic warfare is measured in microseconds, and targets often have speeds of hundreds or thousands of kilometers per hour, so the accuracy and speed of our data processing are fundamentally different. requirements. So I call the set of things Im going to talk about below the theory of stochastic finite sets (RFS) Chang Haonan said and took out a calculation process for the thickness of almost a book from under the table. ??Guo Lin was so shocked by this scene that he almost exploded. First of all, lets define what a random finite set is. ?This time, everything he wants to say has been typed out on paper, so he saves the time of writing and drawing: "For a locally compact Hausdorff separable space E, the set composed of all finite subsets in it is expressed as (E). Then, a random finite set on E can be defined as a measurable map :(E) "For an RFS, the number of elements is expressed as ||, which is the potential of RFS. In addition, the elements in RFS are disordered, that is, the necessary and sufficient conditions for RFS and RFS to be the same are: (1) ||=| |, (2) If the element ʦ, then ʦ䡱 "In short, if we design a radar, including post-processing software, and implement this model in engineering, we can passively detect targets without actively emitting radar waves, and achieve effective monitoring and control. track." ??When Guo Lin handed Chang Haonan the brewed tea for the eighth time, the theoretical explanation that lasted for more than four hours finally came to an end. Any more questions? Silence. The only sound that could be heard throughout the room was the hum of the fluorescent tubes. ?Chang Haonan took a sip of water. He knew he needed to set aside some time for everyone to think. After all, even Xu Yang, even himself, who was cheating on the system, had to go through it for a while before he fully understood it all. "Well" The first person to speak out was Guo Lin: "If you think about it this way, wouldn''t it be quite invincible? As long as our radar backend has enough computing power, even stealth targets can''t escape?" And this should not only be an electronic warfare method, all targets can be detected using this method. ?Another person also replied with a look of astonishment. Of course thats the case. ?Chang Haonan put down the water glass and nodded: "But you just said that you need to have enough computing power first. In reality, of course it is not that beautiful. Moreover, since the third-party radiation source or the target radiation source is not controlled, passive radar cannot guarantee continuous operation, or it requires someone who has the courage to do it. The sacrificed units on our side are used as sources of radiation for this radar, such as large drones or something..." In short, judging from our current actual situation, it is best to combine passive positioning technology to play a role in counterattacking the opponents SEAD operations. Is it also effective on ground radar? Logically speaking, this technology that relies on radar to detect targets should be mainly used for air defense. No, no, no, you didnt understand me. Chang Haonan shook the pen in his hand: Its not a SEAD operation, its an anti-SEAD operation. When they want to hunt our radar, even if our ground radar is jammed, the radar waves emitted can still be regarded as an effective third-party radiation source for detecting the other partys electronic warfare aircraft. The mantis stalks the cicada, but the oriole follows behind. It just so happens that the JH-7 in Factory 172 is at the end of its transformation. If we move faster, we can actually verify this strategy on it. "So...we have developed a countermeasure algorithm for electronic warfare?" ? Guo Lin never expected that the countermeasures that the 14 institutes had been pursuing for several years would be realized through this method - You can interfere with me, but I can also just kill your whole family. Today is 10,000, so its time to celebrate Double 11 (End of this chapter) Chapter 272 control electromagnetic power Chapter 272 Control of electromagnetic power ?The idea put forward by Chang Haonan sounds quite unrestrained at first glance, but if you think about it carefully, it is not outrageous. Because electromagnetic interference, at least injection and forwarding electromagnetic interference, is an interference mode that can only be dealt with after receiving radar waves, it is almost powerless against passive detection methods that do not emit electromagnetic signals themselves. In fact, choosing the JH-7 as a platform is a no-brainer. The poor maneuverability and large radar reflection area determine that it will become a relatively conspicuous target. If the opponent has an early warning aircraft to command it, it will be easy to detect and intercept this aircraft that is wandering outside the battlefield and ready to move in advance. . The power supply of 2*15kw is relatively insufficient, and will also become a shortcoming when facing real high-intensity electromagnetic confrontation. But now China has just begun to localize the Su-27, and as for the stealth aircraft, there is not even a shadow of it. There is only one kind of heavy-duty tactical platform that is suitable for use. It''s better than Yun 8... ?But on the other hand, the electromagnetic waves emitted by enemy early warning aircraft can also be used as passive detection methods, and if there is an anti-radiation air-to-air missile with a long enough range... ?Honestly laughing, what kind of early warning aircraft is this? I am flying an early warning aircraft! In short, although there is no perfect weapon in the world, a variety of imperfect weapons can still produce unexpected effects if they are coordinated properly. Actually, this model also has potential for the detection of low RCS targets, that is, stealth targets, that Guo Gong just mentioned. Xu Yang, who had been listening quietly to Chang Haonans explanation just now, also added: However, this requires some more unique technologies, such as the tracking before detection (TBD) algorithm, which uses rough data without parameter extraction, or point measurement data processed by a parameter extraction algorithm with a very low detection threshold, to estimate the target likelihood. The ratio function is accumulated directly or indirectly, thereby improving the signal-to-noise ratio of the passive radar. "Dr. Chang and I tried several ideas and found that the current iteration-based TBD algorithm can only process one frame of data at a time. It has basically no operational value in terms of data accumulation speed or calculation amount. After I return to the institute, I will focus on research in this field and strive to produce a feasible result within one to two years. ?Specifically, in terms of majors in control science and algorithm theory, Xu Yang is not even worse than Chang Haonan after he cheated. In addition, the latter''s main business is aviation after all, so he took on this task without hesitation. ?Anti-stealth is an urgent issue for countries around the world. Considering that China currently does not have the conditions to build a super-large radar station such as Donhe 2N, which relies on force to defeat skill, it can only put more effort into the aspect of making a big difference. Enough, enough. Guo Lin, who was shocked by the efficiency of Chang Haonan and Xu Yang, looked at the pile of paper on the table filled with dense formulas and charts. It was hard to imagine what kind of state they were in during the past few days. Work: Its enough to be able to do this at this stage For 14 institutes who originally just wanted to study the captured pod and do a wave of reverse engineering at most, this was definitely an unexpected surprise. First, we created a tactical pod that is smaller in size and has more functions, and then directly made an earth-shaking update to passive detection technology and radiation tracking technology. Even though the main achievers of these achievements are probably from Beijing Hang University or the Institute of Computing Technology of the Chinese Academy of Sciences, the final implementation of product development and production can only be left to them, Electronic Technology Group. Anyway, with this thing, next time we meet EA6B, we will definitely not repeat the mistakes of 1994! ??The engineer who just used the submarine tactical analogue passive radar detection also spoke again. ?Chang Haonan remembers that his name was Lin Boyuan. The air incident in 1994 was a long-lasting pain for the entire Chinese Air Force and the entire Electronic Technology Group. Generally speaking, this kind of injury takes a long time to heal slowly. But there are exceptions. For example, it took Chang Haonan a week to cure it now. But for now it can only be treated as a temporary solution. If you want to cure the root cause...it is simple. When you have the opportunity, just use a similar method to teach the other party the same lesson. ?Of course, no matter how sophisticated the algorithm developed by Chang Haonan and Xu Yang is, it still has to be implemented in equipment and programs. So after the former confirmed that everyone basically understood what he just said, he began to assign tasks in an orderly manner: Then we will divide it into three parts to jointly advance the progress of the project. "Gong Guo, take a few people back to Jinling and add two sets of antennas and back-end software to the 1472 radar equipped on the J-8C to give it passive detection capabilities. Install it on the aircraft for testing. I will work with the 112 Factory With some coordination, you can directly take one of the finished products that have not been delivered to them and make modifications, which will be faster. " "good." ??Guo Lin agreed quickly, and then selected four from the other 14 people who came over, and then said to Chang Haonan: After all, Jinling is the base camp of our 14th institute. I can find other foreign aid after I go back, so the rest of us can stay here. "fair enough." Chang Haonan looked at the staffing in the conference room and found that there was indeed a shortage of people if the troops were divided into three groups: "All the remaining comrades from the 14th institute, you are responsible for modifying the hardware part of the No. 2 pod according to the plan we have decided before. The improved PRI algorithm we proposed this time only requires rewriting the algorithm software of the pod. , this part of the work can be completed by Researcher Xu. Xu Yang did not answer, but nodded slightly. In the end, its me. During this period, I will return to my old profession. ?Chang Haonan deliberately put a hint of joking in his tone to ease the overly serious atmosphere in the conference room: The JH-7 we plan to use as an electronic warfare platform is an old aircraft that needs to be renovated, so there are a lot of minor chores to be dealt with. If I participate, the progress should be much faster. Is there anything else you would like to ask? ?With the improvement of management capabilities and experience, Chang Haonan''s effectiveness in issuing instructions has gradually improved. Everyone shook their heads and said no. "That''s it. This model is very important. It is an important link for our army to seize electromagnetic control power in possible future wars. If it can be put into service one day earlier, it will have a huge effect on the formation of comprehensive combat effectiveness." As usual, Chang Haonan made a brief summary and mobilization. The right to control electromagnetism? ?This strange and novel expression immediately attracted the attention of many people. But the good thing about Chinese is that even if you encounter a new word that you have never heard of, you can understand it based on the literal meaning alone. So everyone soon understood what it meant. ?Just like air and sea control, so-called electromagnetic control is the ability to control electromagnetic wave signals within the entire battlefield. In the past, China was dominated by others in this aspect and had almost no power to fight back. But this time, this model, tentatively designated as the "JH-7", will become the symbol of the counterattack! (End of this chapter) Chapter 273 Flying Leopard, regain a new life Chapter 273 Flying Leopard, regained his life ?After assigning the tasks, everyone quickly got back into the intensive work. Chang Haonan had not participated in the improvement work of the JH-7 before, so Yao Mengna volunteered to take over the task of briefing him on the progress of the project. As an aircraft that is not a completely new design, the JH-7 has no extra space inside the fuselage to insert other electronic equipment, so it can only remain roughly the same. The difficulty in the transformation process actually mainly comes from the relatively high intensity of the past few years. Body deformation caused by use. ?Especially when it comes to some important structural parts, if you build a new one completely according to the data on the original design drawing, you may not be able to replace it. ?This is actually a common problem faced when refurbishing second-hand mobile phones, or mid-life upgrades, and it is also why it often takes longer to overhaul one than to build a new one. In the future, engineers will generally use 3D laser scanning and 3D printing to solve this type of problem, but in 1997, Chang Haonan and the others could only rely on manual measurement of deformation and the experience of veteran workers to solve this problem. Another more troublesome thing is caused by the foundation of the old aircraft. When the JH-7 was being designed, the Chinese Air Force had only a few aircraft equipped with radars, and had never considered such a lofty upgrade as an electronic warfare modification. Hence, there is not enough space reserved for transmission lines, and the aircraft power supply is not modular in design. ? ? Yao Mengna and the others had no choice but to let several subsystems share the same power line and common ground line during the early transformation. As for the space problem of the aircraft, although the structure of the aircraft cannot be significantly modified, we can dismantle some unnecessary equipment, and at least install the receiving antenna for passive radar into the aircraft. Chang Haonan can do without other things for the time being. Anyway, this JHD-7 is planned to be closer to an air defense suppression combat platform like the F16CJ used to perform SEAD (of course there is anti-SEAD on the Chinese side) missions, and similar to the EA6B and A full-time electronic warfare aircraft like the EA18G will definitely have to be newly designed on the future J-11 platform. But as the basis for the entire improvement, the signal receiving antenna of the passive radar cannot be omitted. Unnecessary equipment? ?Yao Mengna and Tang Changhong, who were standing next to the plane, were both stunned. There is no unnecessary equipment on something like an airplane. Just like a machine gun. Chang Haonan said as he walked forward and patted a double-barreled 23mm cannon on the lower right corner of the JH-7 fuselage. The nose position must still be reserved for the original flat-panel slot antenna, so we need two antennas responsible for passive signal reception in the lower hemisphere and the upper hemisphere respectively. We can slightly modify the vertical tail of the aircraft on the top, and install it on the bottom where the cannon was originally. In fact, this is also a common practice for several later electronic warfare aircraft. After all, with the development of the times and the advancement of close combat missile technology, there have been fewer and fewer air combats where cannons can be used. As for letting electronic warfare aircraft go into dogfights, even normal people cant do it... But if the cannon is removed, will the combat capability of the aircraft be affected..." Tang Changhong, the general person in charge of the new model of Feibao, is still worried. This is not just a matter for the aviation industry sector. In the mid-to-late 1990s, the training methods and organizational capabilities of the aviation force were far less flexible than they would later be. It can even be said to be a bit dogmatic. ?For example, at the beginning of this year, the Air Force conducted new tactics training, which required mobilization at the entire military level. Of course this is also a no-op solution. Since the overall training level of the aviation force has been difficult to describe in the past thirty years, if such strict restrictions are not implemented and the basic skills are clarified first, it is impossible to know how many mistakes will be made. In this environment where the Chinese Air Force has not even completed missileization and has only a few dozen aircraft with beyond-visual-range combat capability, gunfighting is the main or even the only combat for quite a few units. Way. Hence, in the training syllabus, both air and ground shooting from machine guns account for a large share. If you now create an aircraft without cannons, it means either updating the training standards, or developing a completely new syllabus for electronic warfare aircraft as a new aircraft category. Training standards involve assessment standards, and assessment standards involve assessment results. In peacetime, assessment results are closely related to a series of personnel work such as awards, job promotions, etc. In short, a single move can affect the whole body, which is far from being summed up by "If there are no machine guns, then there will be no training." Lets take a longer-term view. Its not the 1970s anymore. Missiles have undergone earth-shaking changes compared to those years. Besides, its impossible for electronic warfare aircraft to engage in combat. Chang Haonan certainly knows the twists and turns involved, but as the complexity of aviation operations continues to increase, more flexible training and organizational methods are imperative. ?If that doesn''t work, you can also throw this single aircraft together with the Y-8 platform special aircraft of the North Sea Fleet. In short, as long as the thinking does not slip, there are always more solutions than difficulties. Tang Changhong held the side of the plane and lowered his head to think. On the one hand, what Chang Haonan said does make sense, and in recent years, the aviation forces of the Navy and Air Force have indeed updated their combat methods and training methods. On the other hand, there really is no better solution. The landing gear bay of the JH-7 is designed inside the fuselage. The advantage is that it frees up wing space for large-sized ammunition. The disadvantage is that it takes up a considerable part of the fuselage space. There is really no free space left. If you do not dismantle the cannon, you can only dismantle the pylon on the center line of the belly. More troublesome. So he nodded in the end: Okay, lets change it according to your plan. "In addition, the overall power supply strategy needs to be modified. It is expected that the No. 3/7 rack set aside for the electronic warfare pod and the radar system will share the 115V/400Hz AC power supply on the engine, and the remaining equipment will use another one to avoid Because drastic changes in the power of electronic warfare equipment cause impact conduction interference. Also, the power supply network must use a two-wire system and a shielding method. The control cables of each subsystem must be shielded and the ground wires must be shielded. Wave protection sleeves must be used and the ground wires must be assembled 50cm apart to ensure good grounding..." Chang Haonan talked about the experiences he could think of one by one. These were summed up in more than ten years of work in his previous life. As for many things in engineering, if there is no master to guide you, you will only make progress if you suffer a loss. For example, the issue of separately supplying power to the weapon system and the electronic warfare system was because in a certain model he participated in, the passive jammer launcher and another active jammer launch system initially shared the same "bucket E bus bar" "Power supply, and the latter will produce impact interference when powered on under certain circumstances, causing the primer of the interference bomb launcher to be fired, resulting in accidental projectiles. ?This fault that "the aircraft will automatically release infrared decoys as soon as the jamming system starts working" troubled the project team for a long time. It was finally discovered that it was caused by the internal resistance coupling of the public power supply. In short, with Chang Haonans not-so-deep involvement, the final stage of the J-Handian-7 modification work was progressing smoothly. ??Now there is only the last piece of the puzzle left before a complete "Wild Weasel". Anti-radiation missiles. (End of this chapter) Chapter 274 Old models also have new spring Chapter 274 Old models also have new spring The general anti-radiation missiles used by China in the previous life were the kh31P and the YJ-91 developed on its basis. ?The range exceeds 150km, the speed is Mach 3.5, and the 100kg super large warhead can destroy the entire radar even if the opponent shuts down and runs away. ??It is a hero among anti-radiation missiles. ??But this thing doesn''t seem to be very complicated. In fact, it requires an integrated ramjet engine that China cannot yet make. It is not a model that can be built quickly and flatly. Therefore, when the Thunderbolt 11 completed the air-to-air target test at the Dingxin base, Chang Haonan took the opportunity of the celebration banquet to mention to the staff of the Second Bureau of Electromechanical Engineering that the relatively thick body of this model could be used to modify a Light anti-radiation missiles are coming. Because air-to-surface weapons have an inherent advantage in gravity potential energy, and they do not need to be as fast as air-to-air missiles, they can replace slow-burning propellants, and the range should be much better than the 30km of Thunderbolt 11. More importantly, it does not involve too many new technologies and can be produced and equipped with troops in a short period of time. Let the aviation force have something to use first, and then get familiar with the tactics. Although it is said that it is better to let people wait for equipment rather than let equipment wait for people, the actual situation is that if you do not have even the most basic abilities, void practice is likely to go in the wrong direction, and it is better not to practice at all. I just dont know if there is anyone promoting this anti-radiation model and what the progress is. The Second Bureau of Mechanical and Electrical Engineering is a unit of the aerospace system. Chang Haonan has not dealt with them much so far, at least not familiar enough to get all kinds of information by just making a phone call, so he simply entrusted Guo Lin, who has returned to Jinling, to inquire. . As time goes by, this electronic combat flying leopard that everyone has high hopes for is increasingly revealing its final image on the drawings. Since most of the aircraft modification work had been completed before Chang Haonan got involved, and the amount of subsequent modification work was not large, it soon came time to return to the blue sky. ?Of course, test flights are quite serious matters, and its not just about finding a pilot to fly around in the sky. ? Relevant data recording and collection work, as well as flight safety assurance, require assistance from the flight test institute. If there are too many people, you will need to queue up. When Chang Haonan went to apply, he was told that a new model aircraft was going to be transferred to Yanliang for testing that afternoon, and there were also foreign delegations visiting the test flight process, so it would take three days at the earliest before it would be their turn. JHD7. The time is not long, so I can afford to wait. ?However, Chang Haonan is still a little curious about which model is going to be exported. ? ? In the 1990s, apart from the clichd J-7M, the other highlight of China''s air force equipment exports was the K8, which was also deeply customized according to the needs of various countries. ?This small, straight-wing, subsonic aircraft is very suitable as a low-cost ground attack aircraft. For example, some Southeast Asian countries will require the ability to mount British-made aerial bombs. ?Other than that, there are some bits and pieces like Y-12 and Z-9, but these models basically do not involve modification, so there is basically no need to fly to Yanliang. ?So before he left, he asked the director of the dispatching office: Do you know what model it is? The one that came in the afternoon. As soon as the plane lands, basic information such as the model is no secret even to the surrounding wall-crawlers, so Chang Haonan can naturally ask directly. A new variant of the J-7 from the 611th Institute, the tentative number is J-7F. Hearing this answer, Chang Haonan was stunned for a moment. He is familiar with the J-7F. ?Although he was not directly involved in the overall design of this model, the mandibular air intake that was the core of the improvement plan was the starting point for his journey after his rebirth. And the matching work of the inlet and the turbojet 14B engine was completed by Chang Haonan. I just didnt expect the efficiency of Factory 132 to be so high. It was only in early April and the prototype had already been built. Even if this aircraft uses almost no new technology, the speed of building a new aircraft in more than two months is really impressive. The other party probably thought he wanted to contact the other party to jump in line, so he continued to answer: "However, the foreign delegations coming here are quite big, so it may be difficult to jump in. Besides, your model is not convenient for exposing too much in front of foreigners. They can enter the parking area directly. If they see it, The details are bad. Oh, thats not what I meant. Chang Haonan waved his hand: Just asking to see if I can meet anyone I know here. Thats probably a mystery. I remember that you seemed to be The director of the dispatching room seemed to suddenly realize something when he said this: Hey, I remembered that you are not from the 601 Institute. Why is it that you have a share in the J-H-7 being modified by the 172 Factory? Chang Haonan had only been to Yanliang once before, the time when the No. 01 prototype of the J-8C made an emergency landing due to surge, so the dispatch room naturally thought he was from 601. "Well... I can''t be considered as a member of Institute 601. If I have to say it, I should be regarded as some kind of foreign aid..." Chang Haonan couldn''t explain his current somewhat awkward status for a while, so he had to explain vaguely, and then found an excuse to go for lunch and escape. That afternoon, the first thing to arrive was a Boeing 737. A group of foreign soldiers wearing blue fur coats walked out. ??It seems that Pakistan is the only country that uses sweaters as jackets and hangs various military rank accessories on them. ?Then the identity of this foreign user is self-evident. After all, in the original timeline, they also purchased a batch of 57 J-7PGs around this time. ??The cost of the current J-7F is not much higher, but its combat effectiveness has been significantly improved. For a country with a small area, it can even be used as a small F16, so it is normal for it to be favored. ?Shortly after the Boeing 737 landed, an aircraft that Chang Haonan had only seen on the drawings provided by himself or Lu Yuying landed lightly on the runway of Yanliang Airport. Perhaps because there was a flight show the next day, this prototype marked 02 did not retain the original color of metal or composite materials like most aircraft during the test. The all too common yellow-green camouflage. What is even more unusual is that the plane flying to Yanliang actually carried two PL8 and two PL11 air-to-air missiles under the wings, which were directly displayed in front of everyone in combat mode. Generally speaking, prototypes are not so eager to test weapon systems in the early stages of test flight. This is obviously a special arrangement when facing customers. ?Especially those two PL11 semi-active air-to-air bombs. ??On New Year''s Eve this year, two J-8Cs shot down a MiG-25, proving the performance of this missile. At least not worse than mainstream foreign models such as AIM7 and R27. Chang Haonan doesnt believe it if the Pakistan Air Force, which almost witnessed the interception with his own eyes, had no idea at all They dont have any aircraft that can hit medium-range bombs yet. Depending on the customer''s choice, the J-7F can be equipped with David''s EL/M2032 small pulse Doppler radar, or the KLJ7 radar, a similar product being developed by the 14th Institute of Electrical Engineering. Both are capable of locking onto typical fighter-sized targets at a distance of 30-40 kilometers and guiding the PL-11 to attack. For many small countries in the 1990s, this was a direct attraction. Sure enough, Chang Haonan noticed that when the plane slowly passed through the taxiway, the foreign soldiers on the tarmac not far away burst into cheers almost in unison. Apparently it works well. (End of this chapter) Chapter 275 The aviation industry has made a lot of money this year Chapter 275 The aviation industry has made a lot of money this year Since there are foreign customers present, it is inevitable that the accompanying personnel of the Aviation Technology Group and the 611 Institute will have a dinner to entertain them that evening. ?But before that, Chang Haonan still took advantage of his free time in the afternoon to find Lu Yuying who was preparing for tomorrow''s test flight in the temporary hangar. As the chief designer of the J-7F, it is impossible for him to be absent at such an important time. Comrade Xiao Chang? Suddenly seeing Chang Haonan in this place, Lu Yuying was also quite surprised: Why are you here with Yan Liang? I heard that you went to Jinling 14th Institute to support the project? I was at the 14th Institute before, but the products they have there also need to be tested, so I need to use the No. 713 aircraft from the Flight Test Institute, so I came here. Chang Haonan looked over the opponent''s shoulder and looked at the J-7F behind him that had just finished its ground display and parked shortly: Mr. Lu, you are very efficient. In less than three months, you have already built the second prototype. Its a small plane with a simple structure. Besides, its thanks to you. ??Lu Yuying took off the greasy woolen gloves on her hands and put them aside, patted Chang Haonan on the shoulder and said: "Because the overall structure has not changed much, many parts do not need to be modified. You can just use the backup parts in the factory. In addition, this is not actually the second aircraft. It is just the first prototype of the newly built J-7F2, 02 In fact, it is a representative model. "Furthermore, Pakistan bought 80 aircraft this time. This model was built with our own funds. In addition to handing over and retaining funds for use, part of the profits can also be distributed to employees as benefits. Factory 132 Naturally, I am very motivated. In recent years, many peoples families have only been able to eat meat once during the holidays. They are so poor..." The latter also remembered at this time that the 611 Research Institutes plan for the J-7F was divided into two types: the F1 type, which was upgraded from the old aircraft, and the newly manufactured F2 type. They all bought the F2 type? ? Chang Haonan doesnt know much about the economy, but his impression is that the situation in Pakistan in the 1990s was not optimistic. Otherwise, General Pervez would not have gone to Luogu with a sword... At this time, it was already 1997, and some signs of the famous Asian financial crisis had already emerged, especially in some small countries, which even began to be negatively affected. ??He also thought about whether he could take advantage of this opportunity to make a fortune, but he really had no knowledge in the relevant field. He only knew that it probably broke out in July this year and lasted until nearly the millennium. At this time in his last life, he had just confirmed that he had successfully passed the postgraduate entrance examination, and was working day and night to complete the project. Naturally, he had no time to pay attention to these news. Later, he worked in technology for half a lifetime, and he never looked back to understand the ins and outs of this storm. In short, I regret it, very much. ?But there is nothing you can do about it, human energy is limited after all. ? And it seems that China did not suffer badly in this round of financial crisis in the previous life, otherwise Chang Haonan would not have no impression at all. ??But it has to be said that Pakistan is very courageous to be able to buy such a large number of fighter jets in one go despite the cold wind blowing in its economy. "That''s not true. There are 48 new aircraft, and the remaining 32 are refurbished J-7Ps that were previously exported. If the results are good, there may be additional orders for the F1 type later. However, this time there will be flight demonstrations and actual aircraft experience. Naturally, the F2 model has better performance. Turning around, Lu Yuying, who had just walked to the side of the plane, shook her head: In addition, according to the information disclosed by the Aviation Technology Group, a considerable part of the payment paid to us by Pakistan this time was paid by the Gulf countries. Gulf countries Chang Haonan followed the other party, and the image of a big dog owner wearing a white turban appeared in his mind: "Even if you know this kind of news, there is something in the Aviation Technology Group." ??It is not uncommon for these countries that are extremely wealthy in the physical sense to directly use their money to support the armies of other countries, but it is usually done secretly. After all, it is not an honorable thing for both parties, and there is no need to publicize it with great fanfare. In fact, it cannot be regarded as knowing. ?Lu Yuying thought for a moment and replied: The main thing is that the money we received, in addition to the normal international payment methods, also included a considerable amount of US dollar cash. This form is so unique that it is not difficult to guess the source of the money..." Fine ?Thats no wonder.????In this kind of arms business, collecting payment has always been a long-standing problem. ???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? With the payment in arrears, this is already considered a basic operation. In the end, it''s not impossible to change to bartering. Not only poor countries like to play this game, but also some rich countries. The big dog owners are a breath of fresh air. Not only did he spend generously and never defaulted on payment, but he also paid for everything in hard currency. So everyone likes to do business with them. Speaking of which, the fact that the Gulf countries suddenly spent such a large amount of money indicates that they have any other ideas for our other equipment in the future? ?Chang Haonan''s thinking quickly spread out. ??The princes are indeed generous, but they are not mindless boys who spend money. The money they spend has a purpose. But it is indeed a bit unrealistic to say that these rich people are interested in the J-7F. It seems that it can only be explained as having ideas for other equipment. After all, Saudi Arabia, a typical representative of the Gulf countries, did buy a number of big guys from China. This is it...I hope so too. Hearing this conjecture, Lu Yuying turned around and said with a smile: "But I think it''s more likely because they want to check the Persians. You know those countries'' armies, although their equipment is very good, but their combat effectiveness...there is indeed a lot of room for improvement." ?This statement is really a bit high in emotional intelligence, but after all, they are also potential customers, and it is not easy to say anything too harshly even behind their backs. After a little thought, Chang Haonan was very sure that this had not happened in his previous life. At that time, Pakistan urgently purchased a batch of J-7PG to deal with the threat of its old rival in Kashmir. Hmmit seems that the Persians have made some moves recently? Persia Just as Lu Yuying was about to answer, he was stunned: "you do not know?" "Do not know what is this?" ?Chang Haonan looked at the other party with an expression that he should know and was a little confused. Oh, I forgot, you probably havent returned to Shengjing during this time. Lu Yuying walked around the wing and came to the engine and said: "Just last month, Persia found 601 Institute, 410 Factory and 112 Factory and placed a big order to overhaul and upgrade their 24 F14As and 112 F4Es. It is the largest order ever received by the aviation industry. One of the orders, no matter what happens in Persia and Saudi Arabia, we will definitely make a lot of money this year. " Can Persians pay directly in U.S. dollars? ?This big news made Chang Haonan a little dizzy. In the previous life, China also upgraded a batch of F4s for them, but the amount of the project was very small and definitely could not meet the description of this "largest order in history". "That''s not possible, but the news I heard is that they directly exchange oil. In the past two years, the country has changed from oil export to oil import, and it coincided with the high oil price at the beginning of this year. Although this order is not as good as directly earning US dollars, it is still It can save a lot of foreign exchange. In the 1990s, the oil price of more than 20 US dollars per barrel was already very high in everyone''s mind. I wonder if people at this time knew that before Chang Haonan was reborn, the international oil price had hit nearly 150 US dollars per barrel in 2008. What would it feel like to record (The content of the next chapter needs to be adjusted, so it will be updated in the afternoon or evening) (End of this chapter) Chapter 276 Tame air currents Chapter 276 Taming the airflow ?While the two were circling the plane and chatting, the ground staff from the 611 station had also begun to perform maintenance on the plane. Although the J-7F has undergone a complete overhaul in appearance, it is still a MiG-21 in essence, and its performance in terms of maintainability is still relatively average. ??The biggest improvement is the use of a side-opening radome at Chang Haonan''s insistence, so that there is no need to take the trouble to remove the entire nose cone and place it on the ground when maintaining the radar equipment. ?He reached out and touched the air intake lip and radome that he had optimized and designed by himself. ?Although the aircraft in front of me is different in details from the one shown in Professor Liu Hongbos class nearly a year ago, the overall structure is still very similar. ??Most of the projects that Chang Haonan has handled so far are key technology research and development or modification of old models. After all, the feeling of "the aircraft I drew has landed on the ground" is different from the J-7F. From a relatively close position, he could already see that the aircraft''s radome actually contained an old radar. Is this 208A? At present, China''s radar models are still on the eve of a technological explosion. There are only a few models that can be installed. Among them, there are models that can be truly called "radar" rather than range finders, and can also guide semi-active radar bombs. Except for the 1471/1472 on the J-8C, basically there are only 208A left. ??This is the radar equipped on the J-8B in the past. This model was used by the Air Force for the first time to successfully complete the Aspider target shooting test. Yes, the 1452 small-diameter radar originally planned to be developed by the 14th Institute is still undergoing ground testing and cannot be installed for the time being. However, we have to demonstrate the beyond-visual-range interception capability this time, so we can only use this first. Speaking of this, Lu Yuying seemed to suddenly remember something: Would you like to take a photo? This time we specially brought a camera. ?Chang Haonan hesitated for a moment, and finally nodded: Also good. I just happened to call the pilot comrade over, and Im going to take a group photo with the outsiders later. Hearing what Lu Yuying said, Chang Haonan noticed that in addition to the ground staff, there were also some staff who were not wearing work clothes, but were still busy. He has already seen banners and traditional arts of the aviation industry such as big red flowers in the hands of these people. Finally, Chang Haonan and Lu Yuying took a single photo standing on the side of the opened radome. At this time, a pilot wearing a blue cotton jacket trotted over from a distance, carrying a white flight helmet with a red star in his hand. ??The pilot is not fine after getting off the plane. He still needs to hand over to the ground and fill in the flight record. Judging from his appearance, he must have just come from there. Chang Haonan originally felt that he had already asked about everything he wanted to know before, and he did not want to participate in the group photo with foreign parties, so he was planning to go back and rest. But as the pilot got closer, he found that the other person turned out to be a familiar face. Comrade Zhang Jiujiang? The person who came here was the flight instructor who took Chang Haonan to the sky in a J-7 when he first participated in the 83rd Project to observe the air flow separation condition on the surface of the No. 03 prototype. In this day and age, there is no contradiction between the two identities of senior flight instructor and test pilot. But this meeting was quite surprising. Zhang Jiujiang, who was directly called by his name, also stared at Chang Haonan for a few seconds. It was not until he walked closer that he remembered the latter''s identity: Are you the... engineer from the 601 Institute? Have you ever flown on my plane? Uh...yes, we worked well together that time. As soon as Chang Haonan nodded, he heard Lu Yuying interrupt next to him: Old Zhang, Xiao Chang cannot be considered a 601 person ?This topic is already considered a daily topic for the former, but Lu Yuying feels that she should emphasize it, lest the other party forget the promise she made to 611 years ago. ??Although this commitment has nothing to do with his project. "Don''t worry, Mr. Lu. During this time, when I was helping them modify the JH-7 at Factory 172, I specially requested a lot of data from the test flight of the prototype that year, which can be used later when studying active stability control technology. of." Chang Haonan looked at Lu Yuying who looked nervous, and naturally understood the meaning of the other party''s words, so he quickly spoke to comfort him. Active stability control This term is indeed a bit general, and it is not even possible to directly determine which subsystem of the aircraft the technology is used in. This is something I have been thinking about since I completed the flutter analysis of the MA-60 wing for 603 last year. Chang Haonan, who knew this was a brand new concept, explained: Since the flutter of the wing can be controlled through active means, can a similar idea be used to control, or at least predict the engine surge in advance? "Later, when I was responsible for improving the turbojet 14, I discovered that before the engine entered the surge state, there were actually some observable characteristics inside the compressor. If we could intervene in time at this time, we could improve the performance to a large extent. Avoid entering abnormal operating conditions, or at least maintain a spinning stall, so as not to cause damage to the engine and the aircraft itself. " The eyes of Lu Yuying and Zhang Jiujiang who were standing next to them lit up after hearing this explanation. Engine surge is one of the most undesirable faults for both aircraft designers and pilots. Since it is a self-excited oscillation of the air, once it actually enters the surge state, it is too late to save it. ?Especially when flying at low altitude, high speed or with heavy g-load, if power is lost and the aircraft becomes unstable, there is a high probability that there will be no time to deal with it and the aircraft will be destroyed and everyone will be killed. It just so happens that surge is prone to occur under these circumstances. Many first-class accidents are caused in this way. For pilots, even if they discover the problem just one or two seconds in advance, they can avoid accidents to a large extent. If this is the case, would it be possible to install a sensor inside the compressor... Zhang Jiujiang is naturally the most excited. Its not that simple. Chang Haonan smiled and shook his head: "On the ground or on the test bench, the external airflow is relatively stable, and the accuracy of capturing abnormal conditions is relatively high. However, under real flight conditions, especially for fighter jets that require frequent large overload flights, even if no occurrence occurs Surge, the flow conditions of the compressor are also relatively chaotic, and if you just put a sensor, the false alarm rate may be very high. " For automatic control systems, the severity of false alarms and missed alarms is at least the same. So you are going to verify this system on the J-10? ??Although Lu Yuying is not responsible for Project No. 10, he is naturally concerned about the projects of the same institute. "Yes, in order to achieve active stability control, the premise is to integrate flight and propulsion. The most promising one at the moment is the J-10 that uses a three-axis four-redundant digital fly-by-wire flight control system. And on the other hand, Single-engine aircraft also have higher safety requirements. In fact, the J-10 itself has achieved full-envelope first-level flight quality and no scruples control at the aerodynamic level. What Chang Haonan wants to do is to achieve this at the aviation power level. ?But he had another reason that he didnt say ?The air inlet of the Su-27 is a bit too simple, and it is possible that data under some specific circumstances cannot be collected... (End of this chapter) Chapter 277 sea ??and air confrontation exercises Chapter 277 Sea and Air Confrontation Exercises ?Chang Haonan''s explanation directly raised the expectations of the two people opposite. It is also equivalent to saying that he will definitely not let go of the 611 pigeons, which can be regarded as a reassurance for Lu Yuying. I cant help it, even though its a painted cake, its really delicious. Its a pity that I probably wont have the chance to fly to Project 10 After a long time, Zhang Jiujiang sighed and said with a hint of regret. ?Although he has flown almost all types of aircraft currently equipped by the Air Force, the J-10, as the first third-generation aircraft designed and manufactured by China itself, naturally has a very different meaning. Every person doesnt want to experience it whenever they have the chance. Is Instructor Zhangs age okay? ?Chang Haonan took a look at the opponent''s condition. He looked like he was in his 40s. Even if he was in the fighter force, he could still fly for about five years. "I am 39 this year, so my age is not bad, but I was temporarily seconded from the aviation school because the test flight team was short of manpower. After the selection results of the new batch of test pilots are announced in two months, I will return to Kuancheng to work as a flight instructor. " ?Zhang Jiujiang put the flight helmet in his hand on the table beside him and explained to Chang Haonan: If all our aviation schools use J-10 for air combat training, then we probably wont be able to rely on it in the next ten years or so. "I see" There is really nothing we can do about this situation, and we cannot interfere with the personnel changes of the Air Force. Moreover, judging from Zhang Jiujiangs accent, he should be from the Northeast. Staying at Kuancheng Aviation School may not be a bad choice. If you cant fly a new-generation fighter jet, you still have a chance to fly a new-generation trainer aircraft. The three of them chatted for a while. Chang Haonan saw that the members of the Pakistani delegation who had just gone to the guest house to rest had appeared in the infield one after another, and said goodbye to Lu Yuying and Zhang Jiujiang. When he left the infield, he happened to meet the director of the dispatching room again. Good afternoon, Director Yang, we meet again. "afternoon" ??The other party seemed to be thinking about something while walking. Halfway through his subconscious reply, he realized that the person walking out of the infield was Chang Haonan, whom he had just met in the morning: Engineer Chang? Do you know the people from the 611 Office? The tone was full of shock. Oh I have collaborated with them on projects before, so I know a few people. After hearing this answer, Director Yang couldn''t stand it. As a veteran who has worked in Yanliang for more than ten years, he has certainly seen the kind of big boss with connections throughout the system. But I have never seen anyone of this age. ?According to Chang Haonan''s age, he is generally a hard-working young man who has just entered the industry. It would be good if he can recognize all the leaders of Party A who work with his research team. And wandering around the infield as struttingly as the person in front of you is definitely not as simple as knowing "a few" people. ?However, if others wanted to keep a low profile on this kind of thing, he would not be stupid enough to expose it directly. He would just secretly remember this slightly younger face in his heart. This boy has a lot to do in the future.jpg In fact, the leaders at Yan Liang knew the general situation of Chang Haonan. Its just that the former has been involved in the aviation industry system project through Du Yishan and Yang Fenghao from the beginning, so apart from direct business contacts, he has never had any contact with middle-level cadres like Director Yang... ??As for the J-7F''s flight performances and ground demonstrations, it lasted for three days in total. Chang Haonan also had the opportunity to intuitively appreciate the performance of his "pioneering work." In the last life, when Chang Haonan actually started working, the few J-7C/Ds had been retired, so he had not seen the flight performance of this model. But he has seen the J-7B and J-7E in huge numbers. The newly manufactured J-7F2 is equipped with a double delta wing similar to the E-type. It trades a certain high-speed performance for better maneuverability at high subsonic speeds, at least within the visual range of the telescope. It can be seen that compared with the lighter J-7E, this model does not fall behind in terms of turning radius and climbing ability. As for beyond-visual-range combat capability, let alone it, it is completely the difference between 0 and 1. Thinking about it, Im still a little proud. Of course, in the past few days, the people responsible for improving the Flying Leopard were not idle, but jointly began to design the entire test flight process. Compared with all Chinas past aircraft, the JH-7 has two completely new functions. ??One is to carry out forwarding interference to C-band or X-band radars with frequencies in the 6-9Ghz range, and the other is to achieve passive detection with the help of third-party non-cooperative electromagnetic wave signals. Both of these items need to be tested. ?At present, the largest number of air defense systems equipped by the Chinese army is the Red Flag 2 and its various improved versions. The fire control radar used works in the S-band. The American pod was designed with band optimization based on the old Soviet-made anti-aircraft missiles, so it can operate in the S-band. When Chang Haonan chose the interference range, he naturally had to target the Patriot system''s AN/MPQ-65 radar and Standard 2 system AN/SPG62 illumination radar. The newly introduced S300PMU1 system does have a C-band radar, but these few systems are currently deployed around Beijing and Shanghai, and are still in the training stage of tactical tactics. They have not yet fully formed combat capabilities, so they cannot be used casually. Pull away. As for directly conducting tests around the two core urban areas, don''t even think about it - if the electromagnetic interference capability does not meet the standards, it will be fine. If the interference effect exceeds expectations, it will make big news. ?So after going back and forth, the flight test institute finally set its sights on a new model that Chang Haonan also handled - the Y-8J air surveillance aircraft. The SouShui 2000MS radar bought from the UK happens to work in the X-band. ?Although the original design intention of the Yun-8J was to cooperate with the JH-7 to search for sea targets, this model has had certain air search capabilities from the beginning. It is also a preliminary exploration of the Chinese Navy''s use of early warning aircraft. Another advantage is that the Y-8J belongs to the naval aviation force like these JH-7s, which can avoid the cross-service coordination problem that is quite troublesome in this era. This is a way to achieve multiple goals with one stone. ??Guo Lin, who had already rushed back from Jinling, looked at the plan on the paper that had been revised many times: But we also need a third-party signal source, which is not limited to any band, to test the effect of passive radar. Lets go with Yun-8J and find a naval radar station. ?Someone next to me suggested. The representative from the Flight Test Institute shook his head: But there is no way for the naval radar station to be moved inland. It is better to get a radar directly from your Electronic Technology Group. If you put it that way, it would be a bit troublesome to move the radar from Jinling to the northwest... At this moment, Chang Haonan, who had not expressed his position just now but just lowered his head in thought, suddenly raised his head: In fact, we dont need to limit our sights to the inland. "How to say?" Everyone looked at Chang Haonan at the same time. It is absolutely possible to conduct testing at sea. Anyway, for a long time in the future, whether it is the Jianhongdian 7 or the Yun 8J, the imaginary use environment is outside the coastline, and the electromagnetic environment at sea is also relatively clean. One more thing, I remember that we have a fleet of ships visiting outside? One sentence made everyone look at each other in shock. At this time, there is no search engine that can instantly find relevant news. Fortunately, in units within the system, there is always no shortage of newspapers, and people quickly found relevant news. Thats right, a destroyer and frigate formation will set off in March to visit Southeast Asian countries and is expected to return this weekend. What about the specific ship configuration? ?The man looked down at the newspaper again: No. 113 Daocheng was put into service last year, and No. 542 Ngee Ann was put into service in 1994. The configuration of one 052 and one 053H2G. In 1997, it was the strongest destroyer and frigate combination that the navy could produce. In this case, both ships have air detection capabilities. ?Chang Haonan confirmed his thoughts: So, if the navy is willing, it can take advantage of our electronic warfare test to conduct a joint sea-air confrontation exercise while the formation is returning home. (End of this chapter) Chapter 278 I am an army alone Chapter 278 I alone am an army ?This suggestion instantly opened the minds of everyone in the conference room. ?In the era before Chang Haonan was reborn, it was commonplace for the navy to engage in long-sea training, and it was basically the norm for the navy to have two or three fleets of ships performing missions in the ocean. But in the late 1990s, this was a scene that was unimaginable. Since the long-term "equipment maintenance costs" are really only enough to maintain the basic existence of equipment, not to mention ocean voyages, the ship fleet does not even have many opportunities to go to sea. This further leads to insufficient personnel training and experience. As a result, most training subjects can only be carried out in ports or even on shore. Normal formation navigation is often a big job for the navy that requires senior officers to lead the team. As for the more complex tactical exercises, there are even fewer. In many cases, coordination at the fleet or even service level is required to complete. ?Although some attention has been paid to training in the past two years, the situation obviously cannot be changed overnight. The key is poverty. ?Although military expenditures are rising, they are basically rising in the procurement costs of the most urgently needed equipment, and other places can only rise slightly later. In this context, it is obviously a rare opportunity to take advantage of the return of the visiting fleet and aircraft testing to conduct an exercise without spending extra money. ? And in terms of publicity, this kind of multi-arms confrontation, even in a truly complex electromagnetic environment, can be regarded as close to actual combat. So it stands to reason that the Navy should not have any objections. ?No one has any opinion on this. The following are some details. So we are going to use JH-7 and Yun-8J to fight against the Ichigo-Ichigo formation? Isnt it a bit too bullying..." ??Guo Lin asked hesitantly while looking at the newspaper in front of him. This is a configuration that the navy has always had high hopes for, so its not surprising that he thought of it immediately. ??The most conspicuous place in the newspaper was a black and white photo, which was a photo of two ships taken at the Sattahip naval port in Siam. ?According to reports, there were a large number of visitors, especially the local Chinese community. It is a ship from home after all. However, as the most advanced models of the Chinese Navy, the Haihongqi 7 and Hongqi 61 equipped by the two are still only short-range point air defense equipment with an effective range of no more than 10 kilometers, and can only attack one target at a time. Basically, they only have theoretical capabilities. air defense capabilities. ?For them to face the electronic warfare aircraft that symbolizes the highest level of China''s current electronic warfare, and add an air surveillance aircraft, there is really no "confrontation" value. "That would be of little value, either to us or to the fleet." Chang Haonan naturally took this aspect into consideration, so he immediately shook his head: "My plan is to simulate that our warship formation is attacked by an imaginary hostile sea attack aircraft group. Electronic warfare aircraft will come forward to protect the formation, and use the electromagnetic waves emitted by the ship-borne long-range warning radar to find the opponent''s command through passive radar positioning means. machine, and then shot it down in one fell swoop. ?As far as maritime conflicts that may break out at this stage are concerned, this is the real situation that the Chinese Navy, which seriously lacks regional air defense capabilities, is more likely to face. And the configuration of both parties after such adjustment is obviously much fairer. ?Although the Y-8J has only one aircraft, it essentially simulates an attack group. As long as two ships continue to appear within its radar search range for a period of time, it can be determined to be destroyed. ?Of course, there are only one or two interesting simulated attack aircraft that actually take off behind the Y-8J, and any more will not be able to fly. ?However, in order to add some actual combat atmosphere, you can consider launching a few low-altitude target drones simulating anti-ship missiles, so that the two surface ships have something to do, so as not to act as an atmosphere team throughout the whole process. ??Another reason why Chang Haonan didn''t say it just now is that the revised plan can prevent a senior commander on the Daocheng from being too embarrassed when traveling with the formation. In short, this idea was quickly set as a final test plan for submission. For laymen like them in military command, the plan can only go as far as this, and the more detailed parts can only be completed by the navy.??? Two days later, the application for this confrontation exercise was approved as expected. So, Chang Haonan and others, who had everything ready, took a Y-7 and followed the JH-7 to a military airport in Donglai. With the participation of Chang Haonan, the first Y-8J, which was completed nearly two years earlier than the original timeline, was delivered two months ago to the 4th Regiment of the 2nd Hainan Division, the only special aircraft unit in the army. try out. Although this regiment currently only has 8 aircraft (the other 7 are Y-8X patrol aircraft and Water H-5), it is still the treasure of the entire naval aviation force. This can be seen from the conditions of their guest houses. After a half-day rest, preparations officially started. Since it is an exercise, there must always be a process of coordination and deduction by the director before starting. ??High-fidelity exercises like Zhu Rihe''s without any prior plans are a no-brainer these days. If you dare to do it, you will cause trouble. You havent even learned how to walk yet, so you definitely cant expect to be able to run just by taking one step at a time. ??And in the final analysis, the confrontation exercise is just a sideshow. After all, the main purpose this time is to test the JH-7 and the No. 2 pod. From the perspective of cooperating with the test, the other two parties involved must also know what the general process is. As a brand-new equipment, the Y-8J was personally driven by regimental commander Shen Tao, who served as the blue force in this exercise. He was also accompanied by two H-6Ds from the regiment next door to the same division. They will be responsible for simulating two formations of attack aircraft launching an attack on the red side. Actually, it fires two target missiles modified from the Eagle 6. This is also the most expensive part of the entire exercise. ?There is no other way, conditions are limited, we can only let one aircraft act as an army. As for the red side, apart from the two warships in the plan, there is only the JH-7 that Chang Haonan and the others brought over. Are you sure you want to challenge three of us with one plane? Shen Tao knew that the two warships with only short-range air defense capabilities were not qualified to participate in the confrontation. He turned his head and glanced at the fighter-bomber parked on the apron outside the window. From the appearance point of view, compared with the normal JH-7, it only has a few more exposed antennas. Although he is the leader of the special aircraft regiment, he has also cooperated with the J-H-7 of the neighboring troops before, and he knows very well that apart from the name "Fighter-Bomber" and the fact that it has good maneuverability, this aircraft does not have any reliable capabilities. The main problem with air-to-air capabilities is the lack of radar with excellent performance, which makes it impossible to capture targets in time in the open sea. Therefore, although the three aircraft on his side are not capable of air combat, the criterion for winning the exercise is that the Blue Army will win as long as they complete the simulated attack, so Shen Tao does not feel that he will lose. The main reason is that since taking over this Y-8J, he has conducted several simulated attack trainings. The performance of the water-searching 2000MS is really good. It can easily detect frigate-sized targets on the water 200 kilometers away, combined with the range of up to 150 kilometers. With the Eagle Strike 6, there is no need to get close to a risky distance. ??It is basically a fantasy to rely on one aircraft to find three aerial targets within a radius of several hundred kilometers. ?Chang Haonan nodded very firmly: Actually, when we were making the plan, we originally wanted to add a fighter **** formation to your blue army, but your superior said that he didnt have a fighter with a long enough range for simulation, so he had to give up. ?At this time, the Hainan Airlines fighter force stationed on the Jiaodong Peninsula only had short-legged J-7s and even shorter-legged J-6s, and they basically had to return shortly after taking off. ?Shen Tao almost didnt know how to answer with such a confident statement. "Okay, then I want to see what tricks you can do with that plane..." (End of this chapter) Chapter 279 Thought he was the protagonist, but actually he was a supporting role Chapter 279 Thought he was the protagonist, but actually he was a supporting role According to the return itinerary of the visiting formation, the exercise is expected to start at noon the next day. Considering that ship 113 belongs to the North Sea Fleet and ship 542 belongs to the East China Sea Fleet, the two ships will part ways soon after entering the waters of Zhejiang Province. Therefore, in order not to delay the scheduled schedule, the exercise area was chosen outside the Shengsi Islands. Before that, the four aircraft and more than a dozen pilots participating in the performance naturally had to prepare intensively, but for Chang Haonan and other technicians, there was nothing to do for a while. ?So Chang Haonan took this opportunity to walk around the group''s unique seaside tarmac. Since the Shuihong 5 equipped by this group does not have the ability to take off and land on land, it looks a bit like an airport exclusively for helicopters at first glance. Except for a huge gentle **** leading directly to the sea, there are no runways or taxiways. and other facilities. The leader of the regiment, Shen Tao, was preparing for the noon exercise at this time. Accompanying the visit was the chief of staff of this unit, named Luo Huichuan. Chief of Staff Luo, these water bombers look like they havent taken off in a while. ??After Chang Haonan wandered around several planes for a while, he patted the dust on his hands and said to Luo Huichuan next to him. "There is no way, the funds are limited, we can only prioritize the attendance of a few Y-8Xs, and more importantly, like other aircraft, even the old H-5, we know what to do after takeoff, but this H-5 , besides taking off and landing, I really dont know what other subjects I can practice. ?The latters tone was quite helpless: "When it was originally equipped, it was said that the main function of this model was anti-submarine patrol, and it could also carry missiles for anti-ship operations. As a result, after so many years, the anti-submarine equipment has not been in place, and it has no submarine search capability at all. As for anti-ship, The originally expected YJ-1 missile was blown up halfway..." As for maritime search and rescue and firefighting... I can do it, but this requires the cooperation of surface ships and local units to practice, and most of the time we dont have this condition..." Is that so? ?Chang Haonan reached out and patted the huge pontoon under the wing. He didn''t expect that there was such a layer. The sense of existence of Water Board 5 is too low. He only stays at the point where he has heard of it. As for the rebirth, he never remembered that there was such a category of water aircraft ... "My hometown is in the Daxinganling forest area. During the fire in 1987, I happened to be on vacation at home. At that time, I was also responsible for organizing nearby militia and reserve forces to participate in firefighting. So when I was assigned here at the beginning, I thought I wanted to fly a seaplane instead, but our group leader at the time persuaded me not to do so. In fact, it wasnt that there was anything wrong with the seaplane, it was mainly that the water bomber 5 was not very good..." Chief of Staff Luo thinks seaplanes will still be useful in the future? ?This seemingly random question made Luo Huichuan hesitate for a moment, and then nodded after thinking for a moment: "Seaplanes are definitely still useful, but there is no need to develop them for combat purposes. Except for the lack of runway requirements, they are not as good as transporting 8 in all aspects. It is better to put down the burden in this area and be responsible for maritime search and rescue, fire extinguishing, and other related matters. Transport where there is no runway. From this perspective, it is not us who should be equipped with seaplanes the most, but the comrades on the South China Sea Fleet. Their supply needs for islands and reefs are very high, and there are not enough supply ships..." In the 1990s, China did not have the miraculous ability of nature to create an island later. Many islands and reefs were only guarded by stilt houses, and the larger ones had at most a similar dock. As for airports and so on... Only in dreams. From the conversation, Chang Haonan discovered that Luo Huichuan seemed to know the situation in the South China Sea very well. Its not the kind of understanding through briefings and news, its more like actually going there. Chief of Staff Luo has been to the south before? "Well, that time in 1990, I went with the troops to support the South China Sea Fleet. At that time, I flew H-6D and went over the islands and reefs several times. The conditions for the comrades in the garrison were really difficult. At that time..." Luo Huichuan then said something. What I saw and heard at that time. It wasn''t until the troop horn sounded, which meant that the planes participating in the exercise were preparing to take off, that the two finally ended the conversation and returned to the tower as quickly as possible. As the "offensive party" set in the exercise, the Y-8J and the two H-6Ds driven and commanded by Shen Tao naturally had to take off first. Since both aircraft have a range of more than 3,000 kilometers, according to the setting, they can freely Choose the height, angle and timing of your attack. This is also the blue sides biggest reliance this time Since the two ships on the red side do not have medium and long-range air defense capabilities, as long as the aircraft cannot quickly locate the position of the 8J and simulate "shooting it down", it means that it cannot prevent the launch of the attack. Approximately 40 minutes later, the JH-7 that stayed behind took off alone. ? also means the official start of the exercise. At the same time, on the sea about 300 nautical miles away from the coastline of Zhejiang Province, the formation composed of Daocheng and Ngee Ann was sailing northward one after another. In the Combat Command Center (CIC) of the Daocheng, a group of mid-level and senior naval officers were gathered around a three-person platform, staring closely at the circular display screen in the middle. The Type 052 destroyer is the first Chinese ship designed with CIC and is also equipped with a domestic ZKJ-4B-II combat command system. Although it can only achieve centralized command and decentralized control, it is already a qualitative leap compared to the past command model where old warships needed to convey the captains commands one after another. ??The people sitting here are all quite experienced ship commanders, and they know the performance of their ships very well. The Beaver 2C radar responsible for guiding the Haihongqi 7 and the 341AG radar responsible for controlling the four dual 37mm naval guns can only play a role at the last moment of the terminal interception. The only thing they can rely on right now is the two 571Hs on the hangar at the rear of the ship. The coordinate remote surveillance radar provides some early warning information. In fact, the formation commander Yang Shuyu was a little confused when he received the instruction to conduct a sea-air confrontation exercise on the way back. Because according to the exercise plan they received, except for the final section where they had to shoot empty targets, it seemed that the two ships only needed to do soy sauce throughout the whole process. They were strictly ordered by their superiors not to communicate with the naval aviation units on the Red side. In fact, due to the lack of data links, in this era there is no way to communicate between ships and fighter planes even within the same navy... Is it possible that our formation is not the protagonist of this exercise? After thinking for a period of time, Yang Shuyu finally figured out some ways. For a moment, my thoughts suddenly became clear. "Looking at it this way, the positioning of our two ships is actually the target..." (End of this chapter) Chapter 280 A battlefield without smoke Chapter 280 A battlefield without smoke ??Aggrieved, but the exercise tasks that should be completed still had to be completed, so Yang Shuyu, who finally found his position correctly, handed over the command to the captain standing next to him. ??The latter then skillfully directed the ship formation to conduct a series of air defense preparations. After all, no matter what the outcome of the exercise is, they will still hit the last two missile targets. ??It is not easy for the surface ship forces of this year to get the opportunity to hit real targets instead of simulated operations. ?Yun-8J and H-6D are both aircraft with large targets, and their flying heights are several kilometers when searching or attacking the sea. They are the targets most easily captured by radar. ?So not long after, the two-coordinate early warning radar at the top of the hangar captured two targets, one large and one small, at a distance of about 200km. ?This destroyer has only been in service for a year, but many of its officers were transferred from its sister ship Bingcheng, so it is quite experienced. For example, the radar commander quickly judged from the signal characteristics that there should actually be three targets. Among them, the closer and larger one was two aircraft flying in formation. Since the 517H radar is a meter-wave radar, it has the inherent ability The accuracy is insufficient, so the two targets cannot be completely distinguished. ?Early warning radar, at least in this era, really only provides early warning and cannot complete delicate tasks such as guiding anti-aircraft firepower. ??The radar operator stared at the target on the screen for a while and continued to judge: Judging from the flight speed and altitude, they should be two large aircraft. It is speculated that they are H-6Ds sent by the 2nd Division. Although the dual-coordinate radar cannot provide specific altitude information of the target, a target that can be detected 200 kilometers away is obviously unlikely to be flying at a low altitude. So what can we do now? ?Yang Shuyu looked at the air targets getting closer and closer on the screen in front of him. Shipborne radar air defense is still a new thing to most of the older generation of naval commanders, and they dont know much more than young people. This is the main reason why he just gave the captain of the 113th ship full command. . Wait for the target to launch weapons, and then use active jamming to see if it can prevent the missiles terminal radar from locking on us. If not, prepare for hard-kill interception. ??The radar chief didn''t mention shooting down the enemy plane at all. Hai Hongqi 7 has a maximum range of 10 kilometers against aerodynamic targets. In the 1990s, no serious anti-ship weapons could be launched within this range. Hence, the purpose of point air defense weapons from the beginning is to intercept incoming missiles, not to deal with the launch platform. Even if optical channels are included, it can only deal with two targets at a time and is powerless against saturation attacks. However, it can still resist one or two sporadic anti-ship missiles, which is better than the Type 42 of the Royal Navy. This is too passive Yang Shuyu, who was standing in the middle of the CIC, had experienced what it felt like to have a black eye in a naval battle. It was 20 years ago when he served on the ship. At that time, the navy''s combat scenario was still to fight with the opponent''s bayonet at sea. It didn''t matter if the perception ability was slightly different. But today''s war patterns are ever-changing. Even if the courage of the commanders and soldiers remains unchanged, if the technical level is as good as the If not, I''m afraid it will be difficult to have a chance to fight with a bayonet. "Actually, the situation of our ship is quite good. At least it has a radar configuration with clear echelons of far and near, which can clearly see the source of threats. On the 519 ship I served in the past, there was only one 354-type sea radar that could barely be used for low-altitude use. Searching, the rest can only rely on the eyes of the observing hand..." ?Although the radar commander looks young, he has quite a wealth of service experience and knowledge: If you want to take the initiative in air defense operations, you must at least be equipped with long-range air defense missiles like the S300 or Standard 2. ?This kind of thing would be inappropriate for a captain to say, but it would be okay for a grassroots commander like the radar chief to say it. ThisIm afraid it will take some time. ??The good mood brought about by Yang Shuyu''s ship''s visit has also become a lot heavier. He thought that not only the U.S. Navy on the other side of the ocean had nearly 40 cruisers and destroyers in service that could launch long-range air defense missiles, but even the Maritime Self-Defense Force across the sea had equipped three Kongang-class ships with regional air defense capabilities. . ??However, the Chinese Navy has to wait another one to two years to obtain the first outsourced modern-class destroyer, and its air defense capabilities are far inferior to the former two. ?Of course, as a senior commander, he would not show this emotion on his face, but he was already planning in his heart how to give the People''s Navy a real regional air defense capability in a relatively short period of time. We should have entered the attack range of Eagle Strike 6. Shortly after, the silence in CIC was suddenly broken: But the radar didnt see anything being emitted. According to the exercise plan, the H-6 will launch target missiles modified from the YJ-6 at them. ??If it is launched before being counterattacked, then the blue team will be judged as the winner, because they simulate an attack group consisting of 20-30 missiles, and it is impossible for two surface ships to completely intercept it. ??And if there is a counterattack before the launch, the red team will be judged as the winner. However, in order to provide the ship with an opportunity for air defense training, the two target missiles will still be fired, but it has nothing to do with the outcome of the exercise. Is it too far away to see clearly? Probably not...Wait a minute, a new target suddenly appeared on the radar, right between us and the three blue fighters. ??The voice of the radar operator redirected everyone''s attention to the screen in the middle of the CIC. Sure enough, there was a signal that was not very obvious and was flying in a direction away from the two ships. Is this the support force of our red side? Just a plane? It shouldnt be that big. Its probably because there are several of them stacked on top of each other, so the radar cant see it clearly. But this target is within the search range of the 360 ??radar, so the resolution shouldnt be that bad. ??The director only informed them of the basic plan for the exercise, but did not disclose the troop deployment of both sides, so the CIC fell into a discussion. At this time, the captain has also seen some clues: Forget it for now, Chief Gunner, be prepared to intercept the target drone. I think the success or failure of this exercise should have nothing to do with our two ships, but the interception of the target missile later must not be missed! Just as the Daocheng and Ngee Ann were preparing to intercept the incoming target drones, in the air, at a level invisible to everyone, a battle between electromagnetic waves had been going on for some time. The water-searching 2000MS radar on the Y-8J aircraft discovered the radar signals of the two ships 250 kilometers away. According to the plan, Shen Tao asked the crew to guide two H-6Ds flying at a slightly lower altitude to prepare to attack the target at a distance of about 100km. ? ? It was originally the original function of this aircraft to stay outside the enemy ship''s air defense circle and guide low-altitude anti-ship missile carrier aircraft. The effect seems to be quite good now. ??If it is not the cumbersome H-6D but the JH-7 that can fly sea-skimming at low altitude, then the two surface ships should only find the attack aircraft group climbing to altitude and preparing to launch missiles in the last half minute. For the next few minutes, everything seemed calm. So much so that for a moment he thought it was more like a simple simulated attack on the sea. But the good times did not last long. Just when the two bombers were about to enter the attack range, the radar operator behind the cabin suddenly reported that they had lost the signals of the two ships. Lost signal? Shen Tao, who was controlling the plane to fly on a zigzag route, was stunned for a moment: How does the radar behave? The signal in the sector area of ??about 5 where the target is located is overloaded, and the anti-interference mode does not respond. Obviously, they were interfered by the red team''s interception unit. ? Shen Tao was a little confused and glanced at the threat warning device on the dashboard. It did not display any other signal sources, only two meter wave and one centimeter wave signals from the side. ? He ??was very convinced that it was the search radar on the Type 052 destroyer and Type 053H2G frigate. These days, surface ships and aviation forces cannot communicate directly. Excluding the possibility of cheating by the director, the red side aircraft can only use radar if they want to detect them. ??But first of all, the air detection range of the 234H radar on the JH-7 is only about 70 kilometers. It is not easy to find three aircraft in the huge exercise airspace. ? Secondly, if it is scanned by an X-band fire control radar, the radar warning device should give a prompt. Could it be caused by natural phenomena? Shen Tao began to doubt his judgment just now, so he asked the back cabin in a somewhat uncertain tone. ?But before the other party could answer, he received a report on the radio from the pilot of the H-6D lead aircraft about 70 kilometers away. Their Type 245 radar was also unable to lock on to the target due to strong electromagnetic interference! Hell After thinking for a moment, Shen Tao gave up the idea of ??continuing to fly the zigzag search route, but turned the nose of the aircraft and flew directly in the direction of the target. ?This decision brought quick results. Although the interference has not been eliminated, the radar warning device shows that at the 2 o''clock direction of Y8J, there is an X-band radar signal that is still in search mode. (End of this chapter) Chapter 281 Old rival, F4EJ comes to join in the fun Chapter 281: Old rival, F4EJ comes to join in the fun TMD, I finally found you According to the setting of the director (actually due to the range limit of J-6/J-7), the blue side commanded by Shen Tao does not have **** fighters, so even if the opponent''s approximate location is known, it cannot send a plane to intercept it. But he can choose to avoid its edge. Although I dont know what kind of black technology the other party used to interfere with its own radar from outside the beam at such a long distance, the red teams take-off time was nearly 40 minutes late. The H-7, after traveling in such a large circle, could still approach itself from the east before the H-6D launched its attack. Calculated based on the flight speed and distance, afterburner must have been used in the middle, and it was obviously impossible to retain too much fuel. Although semi-active medium-range missiles generally have a range of more than 30 kilometers on paper, at low altitudes where the air density is higher and in a tail-chasing state, it is quite remarkable that they can hit a target 10 kilometers away. This is definitely something the director also agrees with. will be taken into consideration. So he should be safe now. ??And as long as it drags on for a while, the other party will be forced to return! Shen Tao made what he thought was the most reasonable judgment. However, the actual situation on the other side was slightly different from his speculation. Almost as soon as they entered the exercise area, the two test pilots on the JH-7 discovered the traces of three blue fighters through passive radar ??The electromagnetic waves emitted by the two two-coordinate radars on the destroyer are powerful and stable, and they are simply the most perfect third-party signal source. Another benefit of passive radar is that it can detect targets without aiming the transmitting antenna of the aircraft nose at the target. ?Perhaps because the electromagnetic environment is relatively clean, the actual effect even exceeded Chang Haonan''s initial calculation on paper. However, since forwarding jamming requires first receiving the opponent''s radar signal and then transmitting the jamming in the original direction, it cannot protect targets whose angle ranges are too different. Therefore, after discovering the target, the J-Handian-7 pilot can only choose First lower the altitude and fly at an ultra-low altitude to avoid alerting the enemy, and then seize the opportunity to cut between the opponent''s aircraft and your own ship and activate the jamming pod to give the blue team a surprise. Thats exactly what they did. And judging from the subsequent inexplicable route adjustment of the Y-8J, electromagnetic interference should have had a very good effect. What should we do next? ??The weapons controller in the back seat asked the pilot in front on the radio. According to the combat scenario before the start of the exercise, in addition to the jamming pod, they also carried two PL-11s, two PL-5s and three auxiliary fuel tanks. They could take a blind look at them without knowing that they were getting closer and closer to the interceptor. The two nearby H-6Ds carried out simulated attacks. ?But on another level, the directors mission requirements for the red team did not actually require them to shoot down the incoming blue aircraft. It just said that they would win if they could successfully interfere with the carrier aircraft before the missile was launched. ??And now that they have enough fuel left, they can stay in the middle of the blue bombers and their own ships to maintain interference. In other words, according to the rules, the red team has actually won. But because they are currently flying at a low altitude, they cannot conduct normal radio communication with the tower to determine the results of the exercise. The three blue planes did not seem to have any intention of evacuating the exercise area. ??If you climb rashly, the destroyer and frigate formation behind will lose cover. ??In case the opponent takes advantage of this moment to launch a simulated attack, the outcome is still unknown. So the four participating aircraft and the two warships, who were confused and didn''t know what was going on, were frozen like this for several minutes. What is the Blue F-8J doing? Its almost flying out of the exercise area towards the coastline. ? ? The results of passive radar detection can currently only be displayed on the multi-function display in the back seat. Therefore, unlike the situation in most aircraft, the weapons controller has more control over the situation than the pilot. Its been flying to the west? Since the active radar on the nose of the aircraft was not turned on, there was very little information on the HUD in front of the pilot. However, judging from the comments of his comrades later, the situation was indeed quite strange. Thats right, oh, now the direction has changed slightly, as if something is chasing behind. The weapons controllers description made the pilot a little worried: Never mind, the interference has lasted long enough now, lets climb. After saying that, he made a lever action, and the aircraft''s altimeter began to rotate rapidly. As the flight altitude gradually climbed, the radar warning equipment of the JH-7 suddenly had a new response. Wait a minute...this is not the signal characteristic of SouShui 2000. ??The military controller said and pressed several buttons on the panel. ?The jamming pod has the function of analyzing radar signals. If the results match the existing models in the database, the radar model will be output directly. ??Its just that this database has not yet been formed and only stores a few radar features. But these are just a few that are just right. "The result displayed here is...AN/APG66." Furthermore, the passive radar also shows that there are two very close formation targets about 80 kilometers behind the Y-8J. F16? The pilot blurted out subconsciously. The most typical installation target of AN/APG66 is F16A/B. But this is not a model that is often encountered over the East China Sea. So he quickly changed his judgment: No, its F4EJ. Fuck, the road between enemies is narrow today. ?At this moment, the two people in the cockpit figured out everything that had just happened. ?Yun-8J does not have warning equipment that can display all radar models like the JH-7. It must have regarded the X-band signal of the APG66J as a red interceptor. With its back to the target, the SouShui 2000 located on the nose of the aircraft obviously cannot see the target. The F4EJ is located more than 250km away from the Daocheng, which has exceeded the detection range of the 517H radar for targets the size of typical fighter jets. Not to mention the two H-6Ds, they have no air sensing capability at all. Finally, this place is located over the high seas, far away from the coastline, and shore-based radar cannot grasp the air conditions in real time. So this resulted in such a strange scene. ?Before the JHD-7 was scanned by the opponent''s radar beam side lobes, everyone failed to detect it by mistake, or ignored the two F4EJs that came to join in the fun. ?Although it sounds a bit outrageous, this is a true portrayal of the Chinese Navys air surveillance capabilities. This is how it was when there was no regional air defense capability or early warning aircraft. Only relying on ground radar and land-based aircraft will never truly lead to the deep blue. (End of this chapter) Chapter 282 False targets to deter the Air Self-Defense Forces Chapter 282: False targets to deter the Air Self-Defense Force Fortunately, the JHD-7 had climbed to an altitude of 8,000 meters at this time, and the radio communication that had just been interrupted was restored. ?So the two pilots reported the situation as quickly as possible to the base command center in Donglai. ??Although the place they were in belonged to the high seas, the behavior of the two F4EJs rushing towards the Y8J could be regarded as an active provocation. ?Of course, on the high seas, there is no rationale in the final analysis. In the end, it usually comes down to who has the bigger fist. ??This is not the first time that the JH-7 of the Naval Aviation has met with the F4EJ of the Air Force. Judging from past experience, if we only consider the performance factors of the aircraft, it does not mean anything to the opponent. ?However, at this time they are still hanging various bits and pieces such as electronic warfare pods and auxiliary fuel tanks, which will undoubtedly have a serious adverse impact on flight performance. ??More importantly, this is a prototype aircraft that is in the process of flight testing, Du Miao. So the base commander asked them not to venture within visual range. But it would seem a bit out of character if he just ran away in such a dejected manner. Can you send some fighter jets to deal with it? Inside the tower, a staff officer suggested. Luo Huichuan, chief of staff of the 4th regiment, shook his head: The range of our aircraft is too short. It wont take long to follow us before returning. At present, we can only contact the Air Force and ask them to take off two J-8s... This is obviously not a good idea. The issue of the dignity of naval aviation is still secondary. The main problem is that cross-service liaison and reinforcements are too complicated in this era. Due to the lack of information technology, there is no horizontal liaison mechanism. It needs to be reported to the naval command department first, and then contact the Air Force. , and then pass the order to the corresponding aviation unit. By the time this round of procedures is completed, I''m afraid the day lilies will be cold. After a few seconds of stalemate, Chang Haonan, who was in charge of technical support, suddenly said: Its better to let the electronic warfare aircraft scare the other side. Anyway, the distance between the two sides is still very far, and it will take some time to get within the visual range. Furthermore, even with the electromagnetic interference from the opposite side, it is impossible to seize our plane. The initiative must be mine. In principle, the JH-7 has not yet been delivered, so it belongs to the flight test institute. However, as far as the current situation is concerned, it is obvious that the naval aviation is responsible for unified coordination and command. ??Moreover, although the Flight Test Institute is a unit under the aviation industry, the test flight brigade to which the test pilots belong is a serious military order, so it is impossible for Chang Haonan to directly issue instructions at this time without overcoming the on-site commanders. ?His two sentences seemed casual, but they happened to address the issues that everyone at the scene was most concerned about. So the balance that was still swinging in the heart of the base commander gradually began to tip to one side. Are you sure that the jamming pod will also be effective against the F4EJ radar? When he asked this question, it actually meant that a decision had been made. Just need to find a more sufficient reason for yourself. AN/APG66J is a typical X-band pulse Doppler radar. It is the most typical target for the jamming pod we designed, and the jamming effect should be better. Such an answer obviously gives the other party a reason. Well, let them go up and try first, but they must pay attention to the distance and dont get too close. The base commander took the opportunity to agree to Chang Haonans suggestion just now. ?Of course, it is impossible to handle such a big thing by yourself. Reporting to superiors is still indispensable. However, reporting the situation and handling emergencies can be completed at the same time without delaying each other. After the order was issued, the two pilots in the JHD-7 were naturally the most excited. As test pilots, they are undoubtedly the elite among the elite in the military. But at the same time, it also means that there will be a lot less front-line experience. As a result, they caught up today. ??With the two F4EJs so disrupted, the exercise will definitely not be able to continue. ??Of course judging from the results, the red side undoubtedly won. A few minutes later, the two H-6Ds without air-to-air capabilities quickly returned as required. The Shen Tao crew, who had always thought that the red plane was chasing them, finally came to their senses after receiving the order and directly turned 180. Welcoming him. TNND, so embarrassing... Shen Tao, who was flying the plane, felt aggrieved in his heart. ?????????????????????????????????????????????????????????????????????????????????????. What''s more serious is that if the base command hadn''t contacted him in time and issued instructions, people might have thought that they were the two fighter jets he was afraid of today. ?Then he may not be able to hold his head up for the rest of his life. ?Thinking of this, Shen Tao felt scared for a while. ?His aircraft is unarmed, but the SouShui 2000MS radar can capture fighter-sized targets at a distance of about 80 kilometers, and has certain mapping capabilities. If compared, it can barely be regarded as an ultra-low-end version of the E8. The sea-air struggle in peacetime is definitely not just a matter between fighter jets. Red Square No. 01, there are two target aircraft, located at my 11 oclock direction, 65km away, you can... Since there is no data link, Shen Tao can only report the positions of the two F4EJs to the pilots on the improved Flying Leopard via radio. ??Although the two sides still had to compete with each other 10 minutes ago, the red and blue sides still had to compete with each other when facing their old rivals, the Air Self-Defense Force. ?However, his information report was interrupted only halfway through: Blue Square 01, your aircraft only needs to ensure that the radar continues to illuminate the target. Our aircraft can obtain the targets location information on its own without reporting. ??The test pilot''s flat voice came over the radio. ?However, if you listen carefully, you can still feel a hint of trembling in the tone. Obviously he was also suppressing the excitement in his heart. But this answer was completely beyond Shen Tao''s expectations. "ah?" At this time, the JHD-7, which was coming at high speed, finally flew within the main beam range of the two F4EJ radars, then turned around and turned its nose towards the other party - The transmitter antenna of the electronic jamming pod is directional and has the best effect within a range of 60 to the left and right of the aircraft nose. ?Then, the backseat military controller adjusted the jamming pods working mode from the previous coverage to deception. That is, a mode that generates a large number of false targets. Then, just wait for the other partys reaction. At the same time, more than 60 kilometers away in the air. ??Third Airman Koichi Sakato and Second Airman Yamamoto Sakuta were driving the formation leader aircraft towards a large air target detected by radar at high speed. In fact, their two planes were just conducting routine flight training, and in the middle of the flight, they suddenly received a report that a Chinese aircraft was operating nearby. At the end of the 1990s, it was the peak of the Air Self-Defense Force''s strength, and it even didn''t pay much attention to the Chinese aviation force. ?So Kato almost didnt hesitate and flew towards the target airspace with his wingman. Everything that happened next was pretty much what he expected. ?After turning on the search radar, they quickly discovered a large target flying along a zigzag route, presumably a patrol aircraft on a transport aircraft platform. The other party seemed to realize that he had been discovered, so he turned around and ran away. Kato Hikaru was not in a hurry, he just followed behind slowly. ?However, just a few minutes ago, the plane that had been escaping suddenly made a 180 U-turn and rushed directly in the direction of the two F4EJs. ??If this is the case, there is nothing to worry about. Fighters will not suffer any loss when dealing with patrol aircraft. ?However, before Kato Kuzuo could be happy for too long, eight densely packed target signals appeared on the radar interface in front of him in an instant! The balance of power between the two sides has undergone a 180 reversal, from the previous 2 vs. 1 to 2 vs. 9 in an instant. To say that we are not panicking is definitely a lie. Kato Hikari''s hand holding the joystick shook slightly. Satoru Yamamoto in the back seat even exclaimed: Where did the Chinese send so many planes from? (End of this chapter) Chapter 283 slipped away Chapter 283 slipped away For a time, the two F4EJs were in a dilemma. Under such an absolute numerical disadvantage, it takes courage to continue the confrontation. ?But after all, they were the ones who took the initiative just now and rushed towards us in a menacing manner. If they turned around and ran away without even seeing each other now, it would seem too embarrassing... ?Kato Hikaru initially thought about whether to request reinforcements from the 302nd Air Force at Naha Base. However, the current deployment of air forces still follows Cold War habits. The aviation units located in the southwest are not elite and their combat readiness level is relatively low. Considering that the base is still about 400 kilometers away from this airspace, even if reinforcements are sent, it will probably take about half an hour to arrive. If you want to take off the F15J with better performance, it may take longer. According to the current speed at which the two sides are flying towards each other, visual contact will enter in three minutes at most. Even if everyone maintains restraint, they will be 2 versus 8... At the end of the day, you cant take advantage. Furthermore, the fuel consumption of fighter jets during violent maneuvers is much higher than that of normal level flight. Before reinforcements arrive, both sides may have withdrawn their troops. In the cockpit, Kato Kuzuo secretly cursed the ground radar station that had just provided him with target information for being unreliable. What they said about only three large planes was really believed in their lies. At this moment of confusion, the voice of the wingman pilot came over his radio: Could this be their trap from the beginning? What trap? One sentence made Kato Koichi, who was already in a state of facing fewer enemies and more, even more nervous. "This...I can''t say, maybe they want to introduce us to fighting within visual range, and then rely on the numerical advantage to prevent us from flying back, or use a camera gun to take a few photos of us being bitten, you know, in This situation is difficult to avoid in a melee. ??If Kato can be a little calmer, he should be able to hear that the wingman has no clue about this and is just guessing now. ?But the content of the other partys wild guess hit exactly what the former was most worried about. The Self-Defense Forces are essentially government agencies, while the Self-Defense Officers are essentially civil servants. This sentence is not only describing their training level, but also describing their organization method and operating logic. Its a mistake to do too much, and its good not to do anything. ??If what the wingman just said really happened, Kato would have to bear the blame. ?Thinking of this, he suddenly felt that it would not be a shame to turn around and go back... ?But before that, the posture and preparations for passing the blame still need to be sufficient. The opponent has a huge numerical advantage, and your concerns are indeed justified. Kato slightly pulled the throttle with his left hand to continue decelerating the aircraft, and at the same time changed the flight direction slightly to avoid a head-on collision with the opponent''s aircraft group shown on the radar: "We can''t fight them now, call for reinforcements, and delay for a while." He knew that all conversations would be recorded by the onboard equipment, which could be used as a tool for him to explain his actions if there was any trouble later. After saying this, Kato adjusted the airborne radio to the satellite communication channel and prepared to communicate with the Naha base behind. Base, this is COSMO356. The situation you reported just now is wrong. We found 8 more Chinese fighter jets near that large aircraft. They are presumed to be J-8s. Please support us! However, a few seconds passed, but no reply was received on the radio. ?Aware that the situation was getting increasingly out of control, Kato endured his inner uneasiness and called again. Still no response. At this time, Yamamoto Kakus voice came from behind: It appears that our satellite communications are being interfered with? How is it possible? This is communication equipment that was just upgraded last year. Compared with before, the frequency band was even specially switched. Kato Hikaru subconsciously denied this statement. But it seems that no other explanation can be found. After a few seconds of hesitation, he asked his wingman to try calling again. ??There was also no response. "What the hell..."??Kato Koichi was able to persist at a 2 vs. 8 disadvantage before, mainly because he had the support of two flying teams behind him. The range and overall performance of the F4EJ exceed that of China''s main model J-6 and J-7, not to mention the slightly distant Nittahara base and the world''s most advanced F15J, which have absolute advantages in terms of quantity and performance. But now, for whatever reason, this advantage no longer exists. On the radar, the Chinese fleet is only less than 30 kilometers away from its own two-plane formation... This is over the high seas, we are training normally, its just an accidental encounter. As long as we fly back safely, no one will know what happened here. As the saying goes, nothing is difficult in the world, as long as you are willing to give up. After some mental construction, Kato Koichi convinced himself to forget about the thoughts he had when he came to find trouble about twenty minutes ago, and then took a deep breath: Lets return. The two planes performed a 90 roll simultaneously, then turned rapidly and deviated from their original route. At the same time, dozens of kilometers away, the SouShui 2000 radar on the Yun 8J immediately captured the opponent''s movements. They retreated. Shen Tao also heard the report coming from the back cabin. Are you really scared away? This is a quite surprising result. In fact, he was even ready to make visual contact with two F4EJs just now. As a result, the other party suddenly became timid. As a veteran Hainan Airlines pilot, Shen Tao has naturally had contact with the Air Self-Defense Force. Although the training level is far inferior to that of the US military, so that experienced radar soldiers can distinguish whether the target is an F15J or an F15C just by looking at the track, but no matter what, relying on more advanced weapons and equipment and the old father behind him as a backup, Kong Zizi has brought a lot of trouble to China''s aviation forces in the past few years. ??It was indeed the first time that he had seen this kind of situation where the two parties turned around and ran away without even seeing each other. Havent even heard of it before. As a result, today, a chance encounter that was considered unexpected for both parties actually revealed the other party''s original shape. Such a difference made Shen Tao think about whether the passive defense strategy in the past was a little too conservative. ??Although the performance of the electronic warfare aircraft was indeed very good, in the previous confrontation exercise, the radar on the Y-8J was rendered useless. Presumably, the two other aircraft also suffered similar interference. ?However, this is definitely not a reason to run away from the enemy. Attributing the reason to the lack of courage of the opponent''s pilots seems to be slightly more reasonable, and it is also more in line with the writing habits of our army''s post-war summary. But Shen Tao has a deeper idea about this A well-known senior general of our army once said that if the commander does not understand the environment and is not prepared for the enemy''s attack when the enemy suddenly attacks, then even if he is usually brave, he will be helpless and have to do three things. Of the sixteen strategies, running is the best strategy. In his opinion, this is the core of the problem. Hong Kong has no plans or preparations to deal with emergencies like today. They have better radars and more early warning aircraft to provide more complete air surveillance capabilities, but in essence, their adaptability is quite average. In the final analysis, the other side has always been fully prepared to take the initiative to provoke, while China is in a relatively passive situation. But this time, the offense and defense have changed. So, if we can take more proactive sorties like today (actually it can only be regarded as normal maritime training), will it be able to disrupt air self-sufficiency and reduce the sea and air pressure faced by the eastern direction? ?Shen Tao gritted his teeth and decided to start writing as soon as he returned. ??Of course the flight commander alone cannot make a decision on this kind of thing. But a report from a flight commander can make more people start thinking about this issue. (End of this chapter) Chapter 284 Review Chapter 284 Review After struggling for such a long time, the two H-6Ds that were the first to leave the exercise area have returned and landed, and the Y-8J and JH-7 have basically run out of fuel. ?The ground handling capabilities are still relatively limited these days, and the reliability of the aircraft itself is also average. In most cases, it is difficult to take off again immediately after a dispatch. So it is obviously unrealistic to continue to conduct confrontation exercises. Fortunately, although there were extraneous matters, except that the destroyer and frigate formation failed to obtain the planned opportunity to shoot low-altitude targets with live ammunition, the overall situation was considered satisfactory. The naval aviation forces practiced tactical coordination during sea attacks. Chang Haonan and the others verified the effects of the electronic warfare pod and passive radar twice on their own Y-8J and the opponent''s F4EJ. Even before the JHD-7 has entered service, it has already demonstrated its powerful combat capabilities and has a bright future. A world in which only surface ships were injured has been achieved... On the other side, inside the tower in Donglai, when Shen Tao''s report that the enemy planes had retreated ended, everyone in the 2nd Hainan Division, the 14th Electrical Engineering Institute, and the Flight Test Institute had already begun to congratulate each other on a small scale. Among all the people, Chang Haonan gained the most. In addition to gaining a large network of contacts within the Dianke Group, what is more important is the improvement of the system panel properties. Research Points: 900 Theoretical level: LV2 (8500/10000) Engineering experience: LV2 (4000/10000) Management ability: LV2 (3000/10000) Comprehensive ability: LV2 Projects in progress: 0 Projects that can be carried out: 2 Its hard to say whether todays wave is a test, an exercise, or an actual combat, but in short, the system directly determines that both passive radar detection and forwarding jamming projects have been completed. After subtracting the expenses of having the system help improve the project, we still made a net profit of 300 scientific research points. Furthermore, perhaps because the development and improvement of stochastic finite set theory was involved during the project, the experience value of the [theoretical level] in the system skyrocketed by 6,000 points. However, [Engineering Experience] and [Management Ability] have not increased much. This may be because although these two projects are not easy, most of the tasks of transforming theory into engineering design are completed by members of the 14th Institute, and from start to finish The size of the team directly involved in the project is not large, and it does not test Chang Haonan''s management level too much. But in any case, the system is now very close to achieving a new breakthrough. Theoretical level is the only attribute that has not been upgraded since his rebirth. Although the accumulation of experience points within the same level will also enhance abilities, judging from his past experience, the effect is far less obvious than the effect of level upgrading. This made Chang Haonan look forward to it. ?Of course, such a big matter involves a distanced battle with Kongzi, an old rival, and it is obviously impossible to have no sequel. Especially for those in the naval aviation side, there must be a lot of desk work waiting for them. ?About half an hour later, the JH-7 prototype that made the spotlight today landed on the runway of the Donglai base. Following that, the slightly slower Yun 8J also landed smoothly in the twilight that was gradually sinking to the west. Everyone held a brief welcome ceremony on the tarmac for several triumphant pilots. Subsequently, the staff who followed from the flight test center took off the two electronic warfare pods and placed them on the bracket next to them In addition to the No. 02 pod that was first brought to Yan Liang from Jinling by Chang Haonan and others, when Guo Lin and others returned to the 14th Institute to work on passive radar antennas, they also built a brand new 03 according to the improved technical status. No. pod. ?This pod is functionally the same as No. 02, but in order to better reproduce and analyze the electronic warfare test process, a recording device is specially added to it, which can store all data under power-on working conditions. After the ground crew took apart the lower half of the fairing of the pod, Guo Lin personally took out the recording equipment in pod No. 03 and handed it to Chang Haonan next to him. Chang Gong, Guo Gong. ? Luo Huichuan, who was beaming with joy, and Shen Tao, who had not yet taken off his flying helmet, walked over from the other side: You comrades on the scientific research front are the biggest contributors to our ability to scare back our childhood this time. In the evening, there will be extra meals in the base canteen, so you shouldnt be busy at this time. Why dont you come and try our air service stove? Although it is not yet time to open the champagne with great fanfare, it is still necessary to celebrate on a small scale within the units participating in the war. ??You must attend this kind of occasion, but Chang Haonan still wanted to know what had just happened in the sky as soon as possible, so he thought for a moment and replied: "Well...you guys should go over there first. We analyze the data quickly and should be finished before dinner time." Although several pilots will definitely write corresponding reports later, even those who have witnessed it, their subjective judgments are different from what actually happened. The objective situation may not be completely consistent, especially since the two pods playing the leading role today are highly automated equipment. Even the weapons control officer in the back seat may not know what is going on. "Okay, I''ll ask the staff to find a nearby place for you." Luo Huichuan looked around and found a young officer with the rank of lieutenant not far away. The people were led by the latter to a conference room. ?Chang Haonan connected the hard drive in the storage device to the computer, and then opened the data file in it. Considering that the electronic jamming pod may work for several hours at a time, in order to reduce the data volume as much as possible, the simplest recording method was adopted when designing this recording equipment. The cost is that the format of the file after opening is a mess. Fortunately, everyone is a professional. Although they are a little big-headed, they can still see some clues quickly. "Look, the first recorded P-band signal is obviously the long-range warning radar on the 052 destroyer. The characteristics of this slightly weaker S-band are not very obvious, but the direction of the signal source is exactly the same as the previous P wave. It should be the TSR-3004 imported from France..." When it comes to the specific radar field, Guo Lin is still very expert. But in the following paragraph, why is the data almost blank? There are only some clutters that are obviously reflected from the sea surface. ?Someone on the other side pointed to the approximately ten minutes in the middle and wondered. Thisshould be the aircraft flying at ultra-low altitude to avoid detection. In this case, the radar signal coming from a large angle above cannot be directly captured by the pod due to the shielding of the aircraft body itself. After a little thought, Chang Haonan quickly thought of the answer: "After all, our JH-7 is modified based on an old aircraft. The compatibility between the body and the pod is not very good. If we want to redesign the electronic warfare platform, we can add a set of vertical tails or the back of the aircraft. Receive antenna to solve this problem. "I see" ??The person who just asked the question also suddenly realized. He is an engineer from the 14th Institute of Electrical Engineering and has not done much research on aircraft. This situation should be specially marked and let them pay attention when it is officially delivered to the troops for trial later. It shouldnt be a big problem. When flying at ultra-low altitude, you are not very afraid of the radar above your head. The main threat comes from the ground. Everyone said something to each other, and the discussion on this issue soon came to an end. Here, a very strong X-band signal is SouShui 2000. ??Guo Lin turned down a few more pages of the data file: And from this time, the pod began to release covering interference. I speculate that at this time, the aircraft should be between the Y-8J and the destroyer and frigate formation. There will be no changes for a long time ?Most mice in this era did not have a scroll wheel. He could only drag the scroll bar on the right side of the interface to turn the data pages at a reasonable speed. Finally, we have arrived at the place that everyone is most concerned about. "Look, the pod''s working mode switched from coverage to deception. It should have come into contact with F4EJ in the early days." The pod generated a total of 14 false targets, 7 of which were high-fidelity holiday targets ?Chang Haonan found the most critical pieces of information as quickly as possible. In other words, in the eyes of the two F4 pilots, they were facing eight of our fighters at that time, so they turned around and ran away? The person who said this sentence was obviously very happy because he had successfully tricked the other person. Its not just thattheres a weaker X-band signal behind it. Chang Haonan, who continued to look down, speculated: I guess it was sent by their satellite communication equipment. That means the two planes later tried to call for reinforcements, but due to our interference, they lost contact with the base. ?Now, everything is revealed. (End of this chapter) Chapter 285 Regional air defense cannot be delayed any longer. Chapter 285: Regional air defense cannot be delayed any longer After the data analysis, according to the original plan, I was going to attend the dinner. ?However, no one expected that that night, Yang Shuyu, who had just disembarked from the Daocheng, took a Boeing 737 and rushed to the Naval Aviation Base in Donglai. ??Accompanying him were several officers from the island city ship. Following this, several other helicopters of different models arrived. ??Because they improvised during the exercise and successfully frightened off the evil-minded Kongzi F4EJ, it was only natural to celebrate on a small scale, and no one could say anything was wrong. So after Yang Shuyu arrived, he drank half a cup symbolically to show his encouragement and recognition to those who participated in the war today. Of course, the superior leaders did not even bother to rest and came all the way from the island city, the home port of the North Sea Fleet. It could not be to participate in such an extra meal that was not even a celebration banquet, but it was related to what happened this afternoon. In fact, it is to hold a summary meeting, where all parties share experiences and lessons learned. So after dinner, all relevant personnel sat back in the conference room just now. ?Yang Shuyus opening is very straightforward: "I rushed over immediately after disembarking. In addition to congratulating you, more importantly, I wanted to express my own feelings about today''s confrontation exercise while the experts in electronic technology and aviation industry have not left. There was a routine round of applause, but he immediately raised his head and lowered his head, indicating that there was no need to engage in such a formality, and then continued to preach: "First of all, I would like to thank the comrades on the military-industrial front. It is you who have allowed me, an old navy man, to experience first-hand what war looks like under modern high-tech conditions. In the past, although I had a general concept in my mind, it was always superficial on paper. , its better to go there in person today. The surface ships we participated in this confrontation exercise are the most advanced and youngest destroyer and frigate in the entire military. Their combined age is less than 4 years. "But these two warships, which represent the upper limit of our navy''s combat effectiveness, could only stand by and watch for a few hours this afternoon, unable to do anything, and unable to help at all!" Actually, it is somewhat inaccurate to say that we stood by and watched, because we only saw the first half of the exercise, and saw a maritime patrol aircraft and two bombers. And the two Japanese planes with malicious intentions did not appear on the radar screen the whole time! ?Speaking of excitement, Yang Shuyu''s voice became a little higher, and at the same time he tapped the table with **** sadly. ??The island city ship commanders sitting on the other side of the conference table also looked heavy. Obviously, this feeling of not being able to control your own destiny is quite uncomfortable. "Judging from the results, our response was good and we succeeded in driving away the enemy plane. However, if the red side''s electronic warfare aircraft had not inadvertently captured the signal from the F4EJ radar, it would have taken some time for us to notice the situation. Abnormal, if it is in actual combat, this is a huge hidden danger. " ?Due to U.S. restrictions, the F4EJ and F15J equipped with air self-equipped equipment have all had their ground-to-sea capabilities cancelled, but the risk is always there. ?This time its F4EJ, what if its F18 next time? ?Yang Shuyu paused. . After the warship returned to port, he quickly learned the general process of the whole thing through the command headquarters'' exercise report, so he continued after a few seconds: "Of course, this cannot be said to be the responsibility of our comrades. The radar on the Daocheng cannot see the target the size of a fighter jet 250 kilometers away, and our maritime surveillance aircraft also cannot detect those two targets due to angle problems. plane." However, there is no reason for war. In any case, we seriously lack air surveillance and regional air defense capabilities, and this will also be the focus of the next construction of our navy. After speaking, Yang Shuyu glanced at all the faces in the conference room and motioned for everyone to express their opinions freely. Since the venue for the meeting was chosen at the naval aviation facility, it was natural that Shen Tao, as the host, was the first to express his stance: "Judging from the use of the Y-8J maritime surveillance aircraft in the past period, this kind of aircraft with only forward radar is still more suitable for sea search. As for air detection, firstly, the blind zone is too large, and it is easy to be intercepted like today. The opponent''s aircraft exploited the loopholes, and secondly, the radar optimized for surface ships did not have enough detection distance for air targets. Therefore, I think that in order to improve our military''s air defense surveillance capabilities, we still need to have a real early warning and command aircraft. " When it comes to early warning aircraft, Chang Haonan is not sleepy. ?Yang Shuyu came here specially today, obviously to bring the front-line troops and engineering and technical personnel together and directly feedback the actual needs of the former. "Regarding the early warning aircraft project, Dianke Group is already advancing. The current plan is to walk on two legs. The ring project that has already paid the payment will continue to cooperate as it is. At the same time, it is striving to establish a medium-sized early warning aircraft completely developed with domestic technology. Achieve a high-low mix and spread the risk. Medium-sized early warning aircraft Chang Haonans speech really aroused Yang Shuyus interest: Where is this project now? Is there an expected timetable? There are only four early warning aircraft in the ring project plan, and the Air Force is the one who paid for it. Obviously, it is impossible to allocate one to the Navy. Moreover, if the early warning aircraft does not form a large scale and can be dispatched at any time in one direction, it will not be very practical. big. So the Navy actually has a demand for a more cost-effective early warning aircraft. The approval process is under way. If nothing goes wrong, the project will probably be successfully approved in the second half of this year. As for the timetable...it should not be a problem to complete the first flight within 2-3 years. If there are sufficient funds, we can even join the 9910 project. This answer is obviously very targeted. When you doze off, I will hand you a pillow. Yang Shuyu just nodded slightly after hearing this and seemed to have no other expression. However, the secretary behind him lowered his head and started recording something. The success of the JH-7 allowed the naval aviation force to experience for the first time the pleasure of customizing an aircraft according to its own requirements. Therefore, Chang Haonan''s attempt to attract investment in the Air Police 200 project has most likely been successful. So what about besides the AWACS? ?After a brief silence, a senior officer with a lower rank next to him spoke: "After the two Sovremenny-class destroyers purchased are delivered, our surface ship air defense capabilities will be greatly improved, but compared with real regional air defense, such as the Ticonderoga class, or the King Kong class, or even the Russian Navy The Kirov-class still has a relatively obvious gap. The main shortcomings are the lack of high-performance search radar, quick-response missile launch system, and centralized air defense command system, especially radar. In air defense operations, being blind can be difficult. no." ?This is said more euphemistically. Actually, if classified in a rough way, an air defense system only has three parts: command, radar and missiles. There is no barrel effect, because it is a plate. They are all shortcomings. After all, the Hyundai class is originally positioned as a low-level chore ship in the Red Navy. It does not have anything fancy on it, from steam turbine power to the short-range but powerful 3M80 "Sandfly" supersonic anti-ship missile, and The 3S90 air defense system, which also has a very short range and average response speed, is just a makeshift system. For the current Chinese Navy, it is considered a treasure, but compared with others, it is indeed not worth mentioning. (End of this chapter) Chapter 286 Aegis Chapter 286 Aegis I remember that the 14th Institute of Electronic Technology Group should have a sea-based phased array radar project, right? ?After the topic came to the air defense of surface ships, Yang Shuyu asked Guo Lin and others. ?With his position, he naturally knows about the existence of these projects, but he may not be very clear about the specific progress. Unless it is a key model in your own field of competence. ??Guo Lin obviously did not expect that the Electronic Technology Group he represented would be mentioned so suddenly, so he was taken aback for a moment, but then nodded quickly: "Yes, we call this radar Star of the Sea. The specific model is tentatively designated as Type 346. However, it is still in the process of transitioning from technical pre-research to the official start of the project. Director Zhou Wanxing should be in charge. I roughly know that the current technical route is active phased array, and T/R components use bipolar silicon components. If it can be produced domestically in the future, or a stable channel can be found to import gallium arsenide, then gallium arsenide-bipolar components can be used instead. Extremely silicon hybrid devices. Haizhixing is considered the number one project among the current 14 institutes. Guo Lin has also done work such as determining technical indicators, so although he is not involved now, he still knows some general parameters. What about the number of T/R components? Although the Chinese Navy currently does not have a phased array radar, there are obviously naval officers who are ahead of the curve in the equipment and at least have some understanding of the relevant basic knowledge. Of course, for a professional like Guo Lin, such a question is still too general, and it is not easy to answer, so he lowered his head and organized his words for a while before speaking again: "It is too early to discuss the number of T/R components now, and it is not too important, because first the specific size of the radar array must be determined based on the ship design given by the shipbuilding industry, which in turn involves your navy''s future plans. The overall plan for an anti-aircraft destroyer is obviously different between a five-thousand-ton ship and an eight-thousand-ton ship. "If we estimate based on the average that a single array is 4*4 meters square, then when using bipolar silicon, the number of components can be about 3500-4000. After upgrading to gallium arsenide-bipolar silicon hybrid devices, it should It can be increased to around 5,000. Due to difficulties in engineering practice such as packaging, heat dissipation, and electromagnetic shielding, when the area of ??the radar array increases to a certain level, it is difficult for the number of T/R components to grow simultaneously with the size of the array, so the Air Police 200 has 5 An array of more than square meters can contain nearly 2,000 components, and the 16 square meters of the 346 is only twice as many. Of course, there is also the factor that the working environment of airborne radar is more conducive to heat dissipation. In short, it is not a simple mathematical problem. Then this radar should be considered relatively advanced in terms of technical level? Yang Shuyu is relatively familiar with foreign military equipment. Especially since 1994, Lockheed Martin began to put the Navy''s Advanced Distributed Combat System (DANCS) developed based on Aegis Baseline 5.3 into export, although it was impossible to sell it. It was given to non-allied countries, but many basic parameters were still disclosed, which gave China a conceptual understanding of regional air defense ships. "Based on the previously determined overall performance, it is at least at the same level as the Baseline 7 version of Aegis, which is also being developed in the United States. The main reason is that there is a gap in the research and development level of our semiconductor components and the performance of data processing computer chips. It shows the mechanical advantages of active phased arrays compared to passive arrays. ?Although Guo Lin still had some pity in his tone, it was from the perspective of an engineer, who felt that he could not convert technical advantages into performance advantages. However, for these naval officers here... ?This TM is simply a blessing from heaven! ??China''s newest warship, the Daocheng, which was put into service last year, is even slightly inferior to the second batch of Charles Adams-class ships after the No. 14 ship in terms of air defense capabilities alone. The latter was a ship commissioned in the mid-1960s. ?As a result, someone suddenly said that they are developing an air defense system that can compete with the new version of Arleigh Burke in the future. ??It feels like a poor boy who has been in poverty for twenty years suddenly learns that he is the only illegitimate son of a rich man. "So... Engineer Guo, I wonder when this Sea Star system is expected to be finalized and put into service, or at least a prototype will be built?" ??The person who asked this question obviously didn''t know these details before, so even his voice was trembling with excitement. "According to the plan when the project was established, it will be finalized in about 10 years." Guo Lin answered without thinking, but then he raised his head and glanced at Chang Haonan sitting opposite, and hesitated: If we estimate based on a more optimistic scenario, it can probably be shortened by a few years. In fact, just recalling all the things that have happened since he met Chang Haonan, Guo Lin felt that if the other party could participate in this thing, it would be conservatively estimated that it would take four or five years to win it. This time is mainly because the comprehensive test ship to be used for testing is still in the shipyard and it is not known when it will be delivered, and the time required for the intermediate modification, prototype manufacturing and other processes cannot be compressed, otherwise I am afraid Shorter. But thinking about it, he couldn''t go overboard and make this decision for Chang Haonan. After all, the latter seemed to be very busy now, and he was from the aviation industry system. It was impossible for him to abandon his job and devote himself to the great electronics and shipbuilding industry. Coming... Ten years Although intellectually speaking, this time should be considered quite reasonable. After all, it took the United States 12 years to develop Aegis. But after all, we have just drawn an almost perfect pie, and now we know that even the wheat used to make the pie is They haven''t been planted yet, and they have to wait 10 years before they can be eaten, so there will be some disappointment. Even Yang Shuyu feels this way. ?So he asked with some reluctance: Then if we reduce some technical requirements, for example, we can temporarily use passive phased array antennas, is it possible to shorten some development time and let the troops have something to use first? ?This idea is basically to run quickly in small steps, and everyone here is familiar with it. ?However, Guo Lin shook his head directly after hearing this: "No, in fact, although the active array is more advanced than the passive array, they are technically branches in two different directions and are not on the same line. Our Electronic Technology Group has been in the field of electronic scanning since the beginning. If we go in the direction of active arrays and go back to passive arrays now, it will distract our research and development efforts. " "And the biggest problem facing Star of the Sea now is not actually the active array, but some more basic parts. For example, the most basic one, the antenna array structure requires a composite material box, which uses aluminum honeycomb sandwich panels and Aluminum alloy diaphragms separate thousands of honeycomb-shaped diamond spaces for T/R components. Large-diameter aluminum alloy fasteners are used to rivet composite materials and aluminum alloy parts. We have now completed all of these processes. No." "Another example is the reflective panel of the antenna array, which is the benchmark for the entire phased array radar structure. To manufacture this thing requires a 4-meter by 4-meter aluminum alloy billet. The current solution can only be imported from the Samara Aluminum Plant, but Rusals grade is different from the Alcoa grade we are used to using in the past, and its mechanical properties need to be re-estimated, or we can use two domestically produced 4-meter by 2-meter 70 aluminum plates for tailor-welding, but the welding requirements are not up to standard..." Even just listening to Guo Lin describe these problems, all the officers present expressed their confusion. Obviously, the engineering problems involved are far more complex than ordinary people think, and they are by no means something that can be built by working overtime in a short period of time. Wang Xiaomo and Chang Haonan mentioned it before when they talked about the design plan of the early warning aircraft. At present, the high-silicon aluminum alloy required for the phased array radar array can only be processed in China through manual milling. The processing efficiency and yield rate are average. For It is not satisfactory for a balance beam or wedge tail antenna. At present, the square antenna area of ??the 346 radar is at least three times that of the Air Police 200, and then a ship needs 4 sides... It may not be possible to work by hand alone. In fact, what Guo Lin did not say is that these processing problems can only be regarded as relatively less complicated among the difficulties faced by the Star of the Sea project. The more troublesome part is the design. ?However, those contents are more professional and profound. Even if they are spoken, few people present will be able to understand them. ??And judging from Yang Shuyu''s expression, what he just said has had a good enough effect, and there is no need to continue with the long speech. So forget it. Todays protagonists are, after all, our comrades in the Navy. (End of this chapter) Chapter 287 The province of the province, the flower of the flower, bomb 6 and then change it Chapter 287 The province of the province, the flowers that should be spent, it can still be used after changing it in H6 For the next period of time, we will mainly discuss naval tactics and tactics that Chang Haonan is not specialized in. Generally speaking, as a high-tech military service, if the level of naval equipment cannot be effectively improved, it can only rely on the role of subjective initiative... It can only be said that there are, but not many. Although some people at the meeting also proposed quite advanced ideas such as realizing data communication between naval ships and naval aviation aircraft, leveraging their strengths and avoiding weaknesses, and at the same time taking advantage of the wide search range of shipborne radar and the fast response speed and large interception radius of fighter units, but In the final analysis, this kind of cooperation needs to rely on high-performance data links. For the Chinese army, which does not even have a few communication satellites and can only rely on short-wave radio stations for voice communication, the effect does not seem to be that obvious... In fact, the current Chinese aviation force cannot even guarantee communication with the base once it flies to a distant place. ?This problem is not very obvious in the east direction. After all, most of the time the longest flight is about 400 kilometers, but the problem will be bigger in the south direction. "Is it possible to refer to the practices of the United States and the Soviet Union during the Cold War to develop a communication relay aircraft that flies 200-300 kilometers away from our coastline and is specifically responsible for handling aircraft and aircraft, aircraft and bases, and even the things just mentioned? , data communication between aircraft and surface ships? Soon someone came up with a new idea. For both parties in the Cold War who are obsessed with the theory of nuclear victory, a "Treaty on the Peaceful Uses of Outer Space" is absolutely impossible to truly reassure them. Various fancy space anti-satellite weapons have never stopped being developed, and can only be The survivability of space-based equipment running on fixed orbits is not reliable in the context of the possibility of overturning the table at any time. Therefore, in order to ensure that after a nuclear war begins and all communication satellites fail or are destroyed, our nuclear submarines can still receive instructions, both sides are equipped with equipment such as E6 or Figure 142MR, which are specially used to forward various signals from high frequency to low frequency. communication signal. ?Of course, it is now the 1990s, and the situation China faces is completely different from what it was back then, but the idea of ??equipment seems to be something we can learn from. ??So the topic returned to the area that Chang Haonan is familiar with. Everyones attention has also turned to a few people in the aviation industry. Just talking about the communication relay itself, its not that difficult. Chang Haonan, who had not spoken for a long time, sat up straight and said to the officer who had just asked the question: "But now the only models that can be used as relay platforms are the Y-8 and the H-6. The air time and range are not enough. If you subtract the time from takeoff to the mission area, I am afraid that the effective cruise time is only two or three hours. This is not good for Its too short for a continuous mission like communications relay. Furthermore, the survivability of these two platforms is also very average. When our aviation strength is insufficient, it is easy to be threatened by the enemys air force and forced to leave the mission area. "In addition, the ceiling of large aircraft is relatively low, basically no more than 10,000 meters. Within this altitude range, long-wave communication is fine, but the transmission distance of our commonly used VHF and UHF signals will be greatly affected by the environment. , the stability is very poor, and it is not conducive to the implementation of this tactic. ?Chang Haonan''s answer was reasonable and well-founded, which made everyone who thought they could see hope feel a little discouraged. In fact, not to mention that not long after the forbearance period ended, the Chinese military had just begun to increase its military expenditures. Even the United States and the Soviet Union at the peak of the Cold War were unable to maintain such a set of things for a long time. They could only be used as a last resort emergency measure. use. Without having to consider a world war, if you want to achieve long-distance relay communications, satellites are more cost-effective. ?As long as it is launched, there will be basically no cost for at least 5-10 years. Compared with aerodynamic platforms that start burning money as soon as they take off, it is simply a dimensionality reduction blow. So this topic obviously cannot be continued. And the time has reached close to midnight. ?Yang Shuyu raised her wrist and looked at her watch, then stopped the topic in a few sentences, and ended the experience summary symposium with a brief summary speech. Although no important decisions were made on the technical side, through todays experience, the naval participants reached a consensus on one thing If conditions permit, more simulated confrontation exercises should be conducted. What you learn in exercises is far more real than what you learn from books or classrooms. If you can''t afford it on a large scale, you can do it on a small scale. For example, like today, two aircraft are used to simulate two fleets. ??If the training funds are really not enough, you may even consider not sailing and just carry out the training in the port. After the meeting, Chang Haonan was about to leave, but was stopped by Yang Shuyu. Comrade Chang Haonan, right? I heard Lao Ding mention you during the meeting at the beginning of the year. ?This sentence made the former stunned for a moment, and then he realized that Lao Ding should be referring to Ding Gaoheng.????Apparently, the other party knew him before today. As to why this matter was not mentioned in the meeting just now, it is hard to guess. ?However, Yang Shuyu did not pay attention to Chang Haonan''s momentary trance, but continued: Lao Ding told me at that time that there was a young comrade in the aviation system who not only had excellent technical ability, but also had great ideas about the direction of the overall situation. ?At the time of his rebirth, Chang Haonan would definitely have been excited and even a little hot-headed if he had been praised in person by someone of such a status. ?But now... To be honest, Im already used to it. After all, I have talked and laughed with people at the level of great elders, and my state of mind is completely different. ?Hence, he did not make any obvious response, because the other party left him alone to say this, and there must be more to it. Sure enough, Yang Shuyus next sentence went directly to the point: So, I have a matter here regarding the introduction of naval aviation equipment, and I would like to hear your opinion. "When we were discussing Project 11 with Sukhoi last year, we brought forward the intention to purchase a batch of improved Su-27s, which are multi-purpose fighter jets they call Su-30. We just signed a contract some time ago. The Air Force 76 We have 24 aircraft. "When signing the contract, the Russian military representatives should have intentionally revealed to us that they could draw a batch of Tu-22M3 bombers from the active equipment and sell them to us at a low price together with the Kh22 anti-ship missiles. Do you think this deal is satisfactory? Need to push forward? Obviously, after Yang Shuyu intuitively felt the pressure brought by air power, he became somewhat interested in this bomber, which was far more powerful than the H-6D. Chang Haonans focus is elsewhere. ??Although the procurement of Su-30 by the Navy and Air Force overlaps in time with Project 11, there is actually no connection between the two. In the original timeline, the contract for these 100 aircraft would not be signed until the end of 1998, and delivery would not begin until the beginning of the 21st century. But in this life, due to the butterfly effect caused by him, the time point has been advanced by nearly two years, which should be much earlier. Form combat effectiveness. Aircraft come second, but the R77 medium-range missiles and Kh31 air-to-surface missiles introduced with the Su-30 are indeed good things. The seeker of the former directly contributed to the birth of the Thunderbolt 12, while the latter''s domestically produced model Eagle 91 It has become one of the most important tactical air-to-ground missiles of our army. As for those pictures 22M3... "no need." Chang Haonan shook his head directly: "For today''s air defense systems, the use of bombers for supersonic penetration has long been unable to pose an actual threat. In the future, except for those with stealth capabilities like the B2, all bombers will essentially evolve into missile carriers. Only The two data of range and bomb load are more important. "The Tu-22M3 has a range of about 7,000 kilometers and can carry three Kh32 missiles. Although this data is much stronger than our current H-6D, if the H-6 can be further improved, it should be able to achieve a similar level. , there is no need to waste precious foreign exchange here. When it comes to introducing things to the outside world, Chang Haonans principle has always been to ride a bicycle to the barthe province of the province, the flowers that should be spent. Dont aim for everything, just what suits you best. The navy and air force need immediate combat capabilities, and it is difficult for the aviation industry to produce third-generation aircraft in a short period of time, so the introduction of a batch of Su-30s with better performance can make up for the shortcomings. Furthermore, as an improved version of the Su-27/J-11, the Su-30 can be seamlessly connected to the future Chinese Air Force''s Flanker fleet in terms of tactical use, and can also share the same system in terms of maintenance and support, without bringing any burden. However, the introduction of the Tu-22M3 means that an additional supersonic bomber support system will be established, which may even have an adverse impact on the subsequent H-6 improvement plans of the 172nd Factory and the 603rd Institute, which is not worth the gain. Is there still potential for the H-6 to be tapped? After hearing Chang Haonans answer, Yang Shuyus first reaction was surprise: I mean, I know that Haojing is improving the H-6G and H-6H based on the H-6D, but the range and bomb load of these two models are still far behind the Tu-22M3. G-type and H-type have indeed changed a lot. Chang Haonan showed a smile that only he could understand: But thats definitely not the limit of the H-6. (End of this chapter) Chapter 288 How could I, an undergraduate student, become a supercomputer? Chapter 288 How come I, an undergraduate, became the director of the Supercomputing Center? The two of them talked until late into the night. ??In the end, Yang Shuyu was persuaded and decided to report to the higher authorities and invest the funds that had been applied for but were idle into the research and development of a medium-sized early warning platform. ?Using an early warning aircraft in the early years, even if it is just a wedge-tail structure, is obviously more cost-effective than buying a regiment of second-hand bombers. After all, the former is to solve the problem of whether or not, while the latter can only be regarded as a limited technological upgrade at best. Moreover, you only need to spend local currency and do not need to use precious foreign exchange quota. Its just Figure 22M3, not Figure 160. ?However, when Chang Haonan said the name Air Police 200H almost out of habit, Yang Shuyu immediately raised his hand to interrupt him. No, this is a bad name. "ah?" ?Such a reaction immediately stunned Chang Haonan, and his brain thought quickly but he couldn''t figure out what was wrong with it. ?In his previous life, he had never heard of the navy being particular about naming. "Most of the aircraft in the past were developed for the Air Force, so when it comes to the models used by the Naval Aviation, it''s okay to add an H after it to indicate the Navy. But this time it''s the same as the JH-7, but our Navy pays for it. Research and development cannot be named in this way. ?Yang Shuyu lifted his upper body off the back of the seat and said very solemnly: The model we use is called Air Police 200. If the Air Force also wants to equip it in the future, let that model be called Air Police 200K! There is quite a sense of joy in the tone of singing as a transformed serf. Although Chang Haonan didn''t quite understand the idea of ??competing among the military services on even such small details, he could accept it. Anyway, its the uncle who gives the money. In previous projects, he didnt have to worry too much about these things, but this one was different. ??You still have to hold the title of deputy chief engineer. In fact, in addition to the Tu-22M3, another introduction that Chang Haonan wanted to prevent was the two S300F (Rif M) air defense systems that were later installed on the Type 051C destroyer. The 051C model, in the original timeline, was mainly used as a means of technical backup and risk sharing. It was started and built almost simultaneously with the 052C and entered into service to ensure that even if the latter did have a problem, the Chinese Navy would not be without ships. Available. ?From the perspective of the time, this double insurance idea was of course no problem and very necessary. But for Chang Haonan, who was very sure that there would be no problems with the Haizhixing radar system, spending hundreds of millions of dollars on a double insurance policy that was bound to be useless was indeed a bit too extravagant. Of course, another function of 051C is to ensure that there will be no interruption in my country''s technical route in the direction of steam turbines, paving the way for future aircraft carrier power. Its just that this function does not necessarily have to be completed at such a high price. ?However, in the eyes of outsiders, his current main business is still limited to the aviation industry, so the questions raised by Yang Shuyu were all related to aviation, so Chang Haonan was unable to find a suitable opportunity to start the topic throughout the whole process. Ill have to talk about it later when I have the opportunity. According to the original plan, Chang Haonan should fly back to Yanliang with everyone from the 14th Institute of Electrical Engineering and the Flight Test Institute the next day, and then transfer to Rongcheng to cooperate with the project team of Project 10 to complete what he said before That active stability control system. But early the next morning, he suddenly received a call from Du Yishan. Xiao Chang, how is your test in Donglai going? In this era, a small-scale friction with the Air Force will certainly not be publicized with great fanfare. In addition, it happened less than 24 hours ago, and the tone has not been set yet. Therefore, even if the classification level is sufficient, Du Yishan was not informed of this incident and only thought that Chang Haonan was testing the electronic warfare aircraft as planned. It has been successfully completed and the results are exactly as expected. ?Chang Haonan also kept his stories short and did not reveal too much about the past few days on the phone. "That''s good." Du Yishans voice seemed to contain some trembling feeling of suppressed excitement: "After you have finished dealing with things there, put down other things and go back to the capital. There is a very important event during this period. The time has not been set yet. You may be required to attend at any time. If relevant research is put on hold, You can take it back to school to do it. "but" Chang Haonan originally wanted to say that it would be more convenient to follow the No. 10 project team in Chengdu, but as soon as he said this, Du Yishan continued: "Because of your work during this period, the school realized the importance of numerical simulation in the field of aircraft research. Therefore, at my suggestion, at the beginning of this year, our school purchased a supercomputer and established a high-performance computing center. Trial operation will begin soon Teacher, I will go back to school as soon as possible. ? It can be called a very important activity by Du Yishan. It is probably not a casual thing, and the level must be similar to the last time at Sandaomen, so I still have to go back. It has nothing to do with any new supercomputer. Due to the temporary modification of the itinerary, Chang Haonan waited for an extra day in Donglai before taking a lifetime free United Airlines flight back to the capital the next morning. It was Du Yishan who personally took him back to school. Teacher, what do you mean by that important activity? In fact, Chang Haonan was more concerned about the level of the super mathematician in the school, but after meeting and saying hello, he felt a bit too impatient to speak directly, so he decided to find another topic first. Of course, I can also satisfy my curiosity by the way. Its nothing, its just that the country is going to organize an event that reflects the new era of contemporary youth. As a youth representative of our school, you may attend and you may have a speech or something. ?Based on intuition, Chang Haonan believed that Du Yishan did not disclose all the facts to him. But he also knew that he wouldn''t be able to get anything out of him by forcefully asking, and besides, there was no way such a thing would be harmful to him, so he gave up and just took advantage of the situation to bring the topic to supercomputing. When will the high-performance computing center you told me about yesterday be opened? It is currently being debugged. Is it expected... It will be at the end of the month. The computing center will be hosted by our college for the time being. After you enroll as a doctoral student, I plan to let you take charge of this matter." Of course, you are a full-time doctor and there is no way to set up a staff for you, so you can only manage it as the acting director at the moment. Du Yishans answer was beyond Chang Haonans expectations. Teacher, its okay to let me use the supercomputer, but if you ask me to take care of this computing center, Im afraid that in terms of energy... "I know what you mean." Du Yishan turned his head and moved his eyes from the scenery outside the car window to Chang Haonan: "There are dedicated administrators responsible for specific administrative work, which is similar to the current computer room model, except that the access is more strict, so you don''t have to worry about it, but as the acting director, I will decide what to do next, which is good for you. " "This is the first supercomputer in the country that is independently operated by a university. It is a benchmark. I estimate that other schools will follow suit soon. The person in charge of the supercomputing center of each university will basically be their trump card major. When the time comes, you will definitely come to Beijing Airlines for experience and research. It will be more convenient for you to have a good relationship with these colleagues in the process. " "Although you are my student, and logically you will have some natural advantages in this area, but you achieved results too early and too fast. I think your body is still strong, so if you want to go further as soon as possible, you still have to consider Build your own network, do you understand what I mean? These words made Chang Haonan become serious and nodded immediately: I understand, teacher. "It''s good to understand. You are very capable, and although you are not so versatile in dealing with people, at least you are not as arrogant and disgusting as some people. Sometimes I feel that you don''t look like you are only in your early twenties. " After making sure that Chang Haonan understood his intention, Du Yishan''s tone relaxed a lot: In short, no matter what, you have such conditions. As long as you can win over some supporters, the road ahead will easily become wider and wider. (End of this chapter) Chapter 289 I thought he was here to assist me (Riwan Chapter 289 I thought he was here to assist me (every day!) ?What Du Yishan just said about going further is actually considering the possibility of Chang Haonan being an academician in the future. ?In the unspoken rules of the Academy of Sciences, if a senior academician like the former dies, unless there is really no successful student among his students, there is a high probability that there will be someone who can "replace" the academician''s position. ??As for whether you can get the title of "senior" again after being promoted to continue this cycle, that depends on your ability. ? Judging from Chang Haonan''s ability, it is estimated that he will be eligible for selection within a few years. However, the speed is too fast, and there is no chance to replace himunless something happens to Du Yishan. So its best to grab a spot on your own. At this time, good interpersonal relationships, if not the decisive factor, will at least be a plus. ?Of course, in Chang Haonan''s case, it was only a matter of time before he put on that hat. But for this kind of thing, it is better to evaluate it sooner rather than later. It is best to evaluate it directly in the first year to save worry and effort. At the same time, it can also leave the opportunity of replacement to those who need it more. Thats right, teacher. Looking at the car driving on the road next to the school, Chang Haonan suddenly remembered something: Do I have to spend a few days working on a graduation thesis? No matter what level the two people discussed just now, it cannot change the fact that he is still an undergraduate. And he is an undergraduate who is about to graduate. You must know that his classmates are probably all worrying about their graduation thesis. Chang Haonan naturally cannot avoid this process, but what worries him is that he has too many achievements and most of them are confidential. For a while, he had difficulty in choosing, and he didn''t know where to pick up some scraps. ?Du Yishan was also happy when he heard this question. The main reason is that there is indeed a small difference in height between the two connected topics. Its rare that you still remember. I thought you had forgotten about your graduation thesis. "This...how can it be done? We still have to go through the process." ?Chang Haonan scratched his head and showed a somewhat embarrassed smile He did forget it before. But you remembered it a bit late. The college requires the graduation thesis to be submitted the day after tomorrow. You can handwrite or print it. ?Du Yishans next words made Chang Haonan take a breath of air. The temperature in the car has risen a lot. Then...it seems like its not too late? Follow DDL, every Party B is familiar with it. ??There is only one problem with science and engineering papers, that is, writing is not very time-consuming, but the process of drawing pictures, making tables and writing formulas is extremely cumbersome, so Chang Haonan felt a little guilty for a while. ?But even though he said this, he was very sure that even if he really couldn''t hand it in on time, the other party would definitely have a way. Haha, forget it, I wont scare you anymore. ?Seeing Chang Haonan''s somewhat helpless reaction, Du Yishan showed a smile that was somewhat inappropriate for his age, and then explained: "You may not have time to work on your graduation thesis. I have already thought of it, so during the time when you went to Jinling to do the project, I asked your senior brother Fang to take out some moderately difficult topics from his research and use them as your undergraduate work. Of course, you have to adjust and revise the specific content of the paper yourself. Senior Brother Fang? Chang Haonan was stunned: Isnt this... bad? ??Undergraduate theses in this era have not yet been put into the database, so many people actually copied them directly. But Chang Haonan just might not be able to catch up with DDL, but it''s not that there is nothing to write. It''s really... unnecessary. Hey, theres nothing wrong with it. ?Du Yishan waved his hand: "The project that Fang Zhen is working on now continues along the direction of your previous research. You have laid a solid foundation for him. There is a lot of work in it that actually has to be counted on you. Besides, the undergraduate thesis is not It will be published, and even if it is written, it will not affect his doctoral thesis next year. Is that so? Chang Haonan met Fang Zhen once before going to Jinling, but he only stayed for a short time before being asked to leave, so he didn''t have time to talk about research directions and other things. But if the latter continues to study in the field of computational structural mechanics, then the situation is indeed as Du Yishan said, and he cannot take advantage of the other party. Du Yishans special car drove slowly into the campus of Beijing Hang University, turned a few corners and parked in the parking lot behind the aircraft building, which was actually on the roadside. ??In the morning in Beijing in early April, the cold is already much weaker than in winter, so you can already see some students walking or exercising outside from time to time. But the number of people we saw along the way today seemed to be too many, and they all gathered outside the college building. What day is it today? I feel like there arent usually so many people at the door? ?Chang Haonan and Du Yishan had some difficulty getting through the crowd. "Today is the re-examination for the postgraduate entrance examination. You can''t just forget about it just because you are exempted from the exam, right?" ?Du Yishan straightened his clothes that were a little messy just now and replied half-jokingly. Postgraduate entrance examination re-examination This is a term that can be said to have shattered time and space for Chang Haonan. He stopped walking up the stairs and turned back to look at the dark crowd outside the building. For a moment, I seemed to see myself in the crowd in my previous life. Xiao Chang? ?Du Yishan, who had already reached the platform on the first floor and a half, noticed that Chang Haonan was not following him, so he turned around and called out, and then pulled the latter out of his fugue. Chang Haonan quickly followed up with three steps and two steps at a time. Whats wrong? Do you know anyone in there? No matter how unrestrained his mind, Du Yishan could not guess what his student was really thinking just now. He just thought he saw a familiar face. ?In this era when college students are not common, it is quite low probability to meet someone you know among those who are about to enter the threshold of graduate school. Thats not true. Chang Haonan shook his head: I just remembered that a year ago, my biggest dream was to be one of them. This is definitely not false. One year ago now was the eve of his rebirth. For Chang Haonan at that time, it was already quite good to pass the postgraduate entrance examination and continue his studies. How could he dare to think that he would get the opportunity to make an exception and go directly to the doctorate? . I saw your course design assignment at Liu Hongbos. It was actually a complete coincidence. Du Yishan also recalled: "So, it can be said that both of us are very lucky. It is probably due to fate. However, with your ability, even if you go to work under another teacher, you will only lie dormant for a few more years at most, and you will get up sooner or later." The two of them opened the door to the student office of the research group while chatting about what happened last year. Because it was a weekend, only Fang Zhen stayed inside. Yao Mengna went to Yanliang yesterday because she still wanted to follow up on the improved JH-7. As for the other masters, they were generally not particularly desperate. ?Compared with the last time Chang Haonan came back, the biggest change in the research team is that there is an extra computer on almost every table The 14th Institute of Electrical Engineering is indeed very wealthy. After half of the project funds they gave to the research team were allocated to Chang Haonan personally, they still had spare money to carry out a large-scale upgrade of office equipment. "teacher." Fang Zhen raised his head and looked at the door: There are still junior brothers? Well, how are you preparing for the graduation project I asked you to prepare for Xiao Chang? ?Du Yishan moved a chair and sat next to Fang Zhen. The latter''s expression immediately became tense. ? Anyone who has studied in graduate school knows that it is never a wonderful experience to have a supervisor sitting next to you, even if you have done everything well. "Everything... is ready. It is a part about the design of thick blunt trailing edge blades. Junior brother can just change it according to his own writing habits. Of course, the theoretical part also uses a lot of things that junior brother has made before. " Fang Zhen said as he took out two floppy disks from the drawer and handed them to Chang Haonan in front of him: One contains documents, and the other contains attachments. He still remembered that when he first saw the person doing experiments in the evening in the laboratory, he also thought about letting him use his expertise in computational simulation to help him, and then share part of his doctoral thesis in exchange. . The result is now But he became the assistant for this junior brother who has not yet graduated from a bachelor''s degree... Oh, I cant say that yet. ?The one who did the killing was Yao Mengna, and he wasn''t even qualified enough to do it. "well" Fang Zhen sighed secretly, with mixed feelings in his heart. "I thought he joined the group to assist me..." In fact, I want to intersperse some interesting daily life, but I am a handicap in this regard, and I really dont have any ideas. But in fact, if you sort out the timeline, you will find that the protagonist does not keep spinning all the time, but only on rest days. Everyday I pass by a series of ellipses... (End of this chapter) Chapter 290 Patents make money Chapter 290 Patents make money Thank you, senior brother, please worry about me during this time. ?Chang Haonan simply thanked him and put the two floppy disks into his bag. Where is the word? ?Fang Zhen quickly waved his hand. He had basically no airs as a senior brother before, let alone in front of this monster: If it werent for you, my junior brother, I probably wouldnt have finished my graduation thesis yet. How could I be as relaxed as I am now There was a lot of gratitude at the end of the sentence. This is completely sincere. When he and Yao Mengna were responsible for performing wing flutter analysis on the MA-60, Fang Zhen led the research team into a dead end. If it weren''t for Chang Haonan''s miraculous rescue, he would have been able to conclude the problem hastily along the original route. . Based on their research situation at the time, it could only be regarded as application-level research based on existing mature technologies and theories, with almost zero innovation. It would not be a big problem to graduate a few masters, but it obviously did not meet the requirements for doctoral training. Now, although the core technology of the generalized aeroelastic equation under nonlinear flutter conditions was developed by Chang Haonan and has been named by Du Yishan and asked not to be published publicly for the time being, this is equivalent to opening up a scientific research path. A new direction, just pick up some scraps nearby, and change the application field to engage in interdisciplinary research, it is enough to write a doctoral thesis. Actually, if we really talk about the workload and difficulty of the work, it may not be greater than before. This is the dividend that pioneers in the field can reap. ?Some young mentors who have made such breakthroughs in theoretical aspects can even rely on one of their own achievements to provide proof for their Ph.D.s within a few years, so that they can graduate on time. Anyone who has received a Ph.D. knows how attractive this is. As a result, it is easy to form a siphon effect, attracting several batches of the best students to lead a research group. Of course, Chang Haonan has not found a mentor yet, and Du Yishan has been flying for most of his life and is already considering landing. So the first person the former took to fly became his senior brother. ?While a few people were chatting, another sleepy-eyed man yawned and pushed the door in from the outside. It is summer. ??Its the masters student who worked on the project with Fang Zhen and Yao Mengna. Then she saw three people sitting in the office. Senior...brother? Although she and Chang Haonan haven''t seen each other for a few months, they have been hearing that the latter has made many achievements in the 603 Institute. In addition, even Fang Zhen often talks about whether his doctoral thesis was entrusted to others. The other party''s blessing was such that Xia Tian even hesitated when calling out this title. I feel that calling me junior brother is no longer respectful enough. But there doesnt seem to be any other name for it. ?At this time, Du Yishan also stood up again: I have a meeting to hold in the morning, so you guys should be busy first. Xiao Chang, come with me to get the key, and then you can take a look at your new office over there at the High Performance Computing Center. New office? Mine? Hearing Du Yishan talk about this, Chang Haonan noticed that his workstation in this room was still the same, and there was no computer of the same style like others. We cant let the people in charge of the computing center sit in the same room with us. If word spreads, it will seem like we are short of a room at Beijing Airlines, and many things will be inconvenient. Fang Zhen next to him smacked his lips, with some envy in his tone. Xiao Fang is right. Even if you dont go there often, the place must be reserved. In fact, even the computer room equipment and other equipment have been shipped, but the manufacturers engineers are still doing final debugging, so there is no way to officially open it. Du Yishan also explained. Chang Haonan only learned that he was appointed as the person in charge of the computing center on the way. He never expected that even the office matters had been settled. He was stunned for a moment before nodding, and then followed Du Yishan out again. "well" Watching the old man and the young man leave, Fang Zhen sighed in confusion: "Think about it, when my junior brother first joined the group last year, I personally helped him clear up his position. It turned out that it was less than a year. They have already moved to independent offices, and I havent even graduated from my Ph.D. Looking at the bright side, he hasnt even enrolled in the Ph.D. program yet. ?Xia Tian patted Fang Zhen on the shoulder, looked in the direction of the door and replied. Fang Zhen became even more depressed after hearing this: Ill just assume you were comforting me just now About half an hour later, Chang Haonan appeared in the student office of Du Yishan''s research group again. Junior brother? Why are you back again? Xia Tian poked her head out from behind the huge CRT monitor and asked curiouslybecause she was relatively short, her whole body would be blocked by the computer when she was sitting. Obviously she thought Chang Haonan would definitely use the new personal office. After all, who doesnt want a separate work space? ?Chang Haonan waved his hands and sat back in his seat: Forget it, that office has just been renovated, and the smell is so strong that its going to kill me, and construction is still going on around it. All the noise makes me have a headache, so I went to identify the door and ran away. At this moment, Fang Zhen also suddenly remembered something. He stood up and found a document bag from the bookcase next to him, and then came to Chang Haonan: By the way, junior brother, you came back just in time. I have a project here that needs to use a patent you registered before. My patent...the one that designs the way the blades curve and sweep? ?That was registered last year when Chang Haonan took advantage of his free time to do private work for a company. According to international practice, if a patent is issued during the research process, the person who completed the patent will be the name of the researcher, and the owner will be the name of the person who funded the project. ??If it is a vertical topic, then write the name of the organization. Horizontal topics are usually enterprises. Of course, if the researcher conducts the project at his own expense, it belongs to him alone. Chang Haonan''s situation was quite special. Firstly, he was a small company and he didn''t pay much attention to patents. Secondly, he didn''t have enough money to sponsor a complete project. ?The five thousand yuan is just Chang Haonans hard work fee and Wu Yifans intermediary fee, and it certainly cannot be calculated according to research funds. In short, a series of reasons led to the ownership of the patent finally falling into the hands of Chang Haonan. "Yes, this project requires the use of a high-altitude swept-blade propeller. The design is very similar to the one in your patent. Party A considers that there may be legal risks in the future, so let me talk to you about the issue of patent royalties. ??As long as it is not an essential standard patent, patent royalties are a matter completely decided by negotiation between the two parties. No one can control whether it is a free license or a sky-high price. Thats no problem. What are they planning to do with this propeller? How much are they prepared to pay? ?Chang Haonan is a layman who is still interested in money. He fastened the computer he had taken out and took the portfolio from Fang Zhen beside him. There are many ways to collect patent royalties, and Chang Haonan naturally has to choose the one that is more beneficial to him. For example, for products with large shipments, such as ordinary motors and centrifuges, you can first charge a relatively low entry fee like Qualcomm will do in the future, and then charge each product a certain proportion of the selling price. Commission. ??And if the output is very small, it is better to negotiate it once and for all, and save the trouble of annual verification later. (End of this chapter) Chapter 291 Stratospheric airships and the international internet Chapter 291 Stratospheric Airships and the International Internet "Well... As far as our relationship is concerned, I won''t go around in circles. The patent budget given to me is 50,000, authorized for two years, and can only be used on a specific model of propeller blades." Fang Zhen directly gave a fairly sincere number. ?A license like this with a very short license period and very restricted scope and method cannot command a too high price. Of course, if you find a lawyer who specializes in patents and fight with the other party, it is probably not a big problem to pay a few thousand to ten thousand, but it seems that it is not necessary. After all, there is still a relationship with Fang Zhen. Furthermore, in the 1990s, domestic intellectual property management was in a state of chaos. If the other party was pushed into a hurry, they would directly infringe the rights. The cost of litigation for Chang Haonan was also very high. So its good to be like this. The amount and licensing method are fine, but with this high-altitude swept-blade propeller, do you want to generate electricity in the sky? ?Chang Haonan opened the portfolio. It contained basically some legal documents and did not involve much technical content. Due to the principle of propeller propulsion, no matter how high the design efficiency is, problems of insufficient thrust and lift will occur at high altitudes where the air is thin. Therefore, unless a propeller aircraft adopts a particularly exaggerated aspect ratio, whether it is a piston or a turboprop, The ceiling is basically around 10,000 meters. ?Only a few cheaters like propeller-fan engines can further break through the height. He remembered that in his previous life, he had the wild idea of ??bringing wind turbines into the air with a floating balloon, using the strong winds in the troposphere to generate electricity, and then transmitting it to the ground, so he asked this question. ? Its just that this idea has little value from the perspective of engineering practice. If you really take on a similar project, the best option is to grab the bucket and run away. Thats not true. The project Im working on now is to work with a team engaged in meteorological research at Zhejiang University to design a high-altitude airship that can remain in the stratosphere for a long time. ?Seeing that Chang Haonan was interested in his project, Fang Zhen simply pulled a chair and sat next to the former: Because it may take two or three months to go up, and it needs to move within a certain range to track meteorological conditions, so it must have a certain degree of autonomous power. Although the meteorology of Zhejiang University has declined in recent years, since the founder of modern Chinese geography and meteorology was their former president, its reputation is still there, and it should not be a fake project to deceive people. High-altitude airship This unexpected term plucked a certain string in Chang Haonan''s mind: How high? ?During the summary meeting held in Dongnae the day before yesterday, someone proposed to build a communication relay aircraft to solve the problem of data transmission beyond 600 kilometers due to the current insufficient number of communication satellites. When chatting with Luo Huichuan before, he also mentioned that the reason why aviation units rarely fly to the depths of the South China Sea in recent years is that in addition to the limited range of aircraft, another big factor is that it is difficult to communicate with them after flying far away. Get in touch with the base in Qiong Province. It shows that this demand still exists. ??And not only for military use, this type of equipment can also provide emergency communication support in the face of emergencies such as major natural disasters. ??Its just that the cost of building a few aircraft was too high and the effect was limited, so it didnt take shape. But now thinking about it, if we abandon the fixed-wing platform and use airships instead, it seems that the ideas will suddenly open up. "They want to study something called the quasi-zero wind layer of the stratosphere. The height is about... 22km to 28km. Near this range, the east-west wind changes, and the north-south wind component is also very small. It can use less energy and power. Achieve regional residence or trajectory planning of the aircraft at a cost. For example, the airship we are designing now has a load capacity of about 16 to 25 times in seasons with zero wind layer compared to seasons without zero wind layer. Very exciting data. Although it may be difficult to deploy a radar on it, it should be enough if it is just used as a communication relay. In other words, the appearance of this zero wind layer is seasonal? ?Chang Haonan raised his eyebrows. If this is the case, the situation will become a bit complicated. Engineers still prefer stable phenomena. "This is what they are preparing to study. It can currently be determined that there is a stable zero wind layer from the end of May to the beginning of September in the area around 10 north latitude near Qiong Province, with the average wind speed not exceeding 5m/s. This data is also The standards I used when designing airships. As for the more specific theoretical part, they told me something like El Ni?o-Southern Oscillation, but to be honest, I didnt understand it at all. If you are interested, I can put that Ill give you my contact details. "I have" In fact, the first person Chang Haonan thought of just now was Lin Guofan. The two had cooperated quite well when making aircraft icing predictions, and the other person was also a meteorology expert and should know more than himself. But this project has not yet been completed by Zhejiang University. In academia, it is almost a taboo to reveal the results that others are working on but have not yet published publicly. It is a taboo to dig up people''s ancestral graves, which is very damaging to the reputation. So he thought for a moment and finally nodded: Okay, senior brother, please help me contact them and tell them that there is a research on application level that needs to be cooperated with them. Both Beijing Hang University and Electronic Technology Group will participate. ?Although he has not yet made contact with the 14th school, Chang Haonan still brought the other party in with determination. ?Mainly because these days, Dianke Group is a relatively wealthy owner, and their name will be more attractive. Why do you need me to contact you? Just send them an email. ?Fang Zhen pointed to a computer next to him. ??This is the one on which Chang Haonan calculated the wing flutter model before. Is the laboratory connected to the Internet? Chang Haonan blurted out, and then he felt that this question seemed a bit similar to "How is the war on Reach?" But there is no way. Since he started participating in the 83 Project last summer, he has not spent much time in school, and he knows almost nothing about the situation in the laboratory. Yes, it happened at the beginning of the year. Fang Zhen nodded, stood up and opened the computer next to him, as well as the cat hanging on the wall next to him. The latter then made a creaking dial tone: Not just laboratories, but also places such as classrooms and libraries are connected. It is said that the school plans to provide Internet access to student dormitories next year, but they will all be charged by the hour. The second half of the 1990s was a period of extremely rapid development of the Internet in China. On April 20, 1994, China officially connected to the international Internet, but there was only one 64K international dedicated line in the country. By 1995, only a handful of large cities across the country, such as Beijing, Shanghai, and Pengcheng, were connected to the Internet. However, until Yinghaiwei was founded, there were still no ordinary users. By 1997, almost all large and medium-sized cities had Internet connections. He hasnt paid attention to it for more than half a year, so the changes have naturally been earth-shaking. ?Chang Haonan stood up and sat in front of the computer connected to the Internet. In the 1990s, it was still illegal to use a router to connect two or more computers to share the network. Although many people did it secretly, it was definitely not feasible to do it with great fanfare in the laboratory, so the computers on other workstations were Can''t access the Internet. Is it a domestic network or a foreign network? This is what Chang Haonan is most concerned about now. He wants to develop multi-physics simulation software in the future, and research in this area needs to refer to many foreign research results. There is absolutely no future in relying on paper journals alone. ??If you can only access the intranet, it doesn''t mean much. ?In this era, the internal and external networks are physically isolated, and it is not like in the later days to get a VPN and be able to access it casually. "What?" Fang Zhen turned around, with a look of confusion on his face. ??The most he usually uses the computer is to send emails, and he doesn''t care much about it. ?Chang Haonan had no choice but to rely on his own memory and change the way he asked the question. "Uh... the first three digits of our dial-up phone number are 163 or 169?" 163 is the Internet, and 169 is the domestic network. Its 163, which is very expensive. I heard from the teacher that it costs 6 yuan an hour. I suggest you edit the content of the email before sending it online. very good. ?Chang Haonan secretly celebrated in his heart. Finally, it has a bit of a modern meaning. (End of this chapter) Chapter 292 web of science Chapter 292 webofscience Although Huaxia sent its first email in the 1980s, in fact, until the mid-1990s, due to network hardware conditions and cost constraints, this method of contact was not popular in China. Even in 1995- During the rapid development of the Internet in 1997, the popularity of email was still half a beat slower. In Chang Haonan''s impression, it was not until around 2000 that scientific research institutions such as universities and research institutes began to use it on a large scale. Zhejiang University actually thought of leaving an email address for Fang Zhen, which is still at the forefront of the country in this regard. It can only be said that it is worthy of being the Internet (9) Internet (6) capital of the future! In the end, Chang Haonan spent about 10 minutes on this 56kbps bandwidth network and finally sent the email with difficulty. ??Before the rebirth, if the network were to be this slow, the operator''s phone number would probably be blown up. But for him, who has been away from the Internet for nearly a year, the requirements for the Internet have been reduced from "smooth" to "just have it." In 1997, what else do you need for a bicycle? After sending it, Chang Haonan did not immediately disconnect from the Internet as Fang Zhen said. Instead, he entered several foreign academic database URLs that he thought were established earlier and tried. Just kidding, even if he keeps half of the funding provided by 14, the remaining half will be enough for the laboratory''s half-year expenses. What''s wrong with going online? As he expected, most of the websites he was familiar with were blank. But fortunately, and to Chang Haonan''s surprise, when he entered the URL of webofscience with almost no hope, the computer did not directly pop up a prompt that the domain name did not exist. After the progress bar read for a full minute, a familiar web page finally jumped out. Holy shitthis database was established in 1997 ?Looking at the crude login interface in front of him, Chang Haonan even felt a little moved Finally I saw something familiar. WOS at this time must have just been established, and it was far less content-rich and fully functional than later generations. Chang Haonan spent a long time looking for it on the web page, and even refreshed it twice, but he couldn''t find the entrance to register an account. ??Of course, even if he can register, this database still requires authorization to view. ?However, it is not difficult to obtain authorization. ?Before Chang Haonan was reborn, Beijing University of Aeronautics and Astronautics had already entered the U.S. sanctions list, but in 1997, it is estimated that only some researchers from universities on the other side of the ocean had heard of such a school in the East. I am afraid that many of them are known through the paper co-published by Chang Haonan and Xu Yang. ??And in order to capture more markets during this period of rapid expansion of the Internet, the United States has also adopted a very open attitude in terms of network access. ?So basically its not difficult to get access to these academic databases as long as the school comes forward. ?Thinking of this, Chang Haonan couldn''t sit still. He turned off his computer and cat, grabbed his coat from behind his chair, and prepared to leave the office. As for the email reply from Zhejiang University... ?People in this era generally do not have the habit of checking their mailbox twice every day after going to work and before getting off work. Moreover, today is Sunday, and it will have to wait until tomorrow at the earliest. Brother, remember to check your email for me tomorrow, and if the other party replies to the email, remember to contact me ?Chang Haonan originally wanted to remember to contact me, but he immediately realized that the other party actually had no way to contact him. Forget it, Ill come over by myself tomorrow. Maybe I should buy a mobile phone He thought this after leaving the office. Confidential matters must not be discussed on the outside phone, but as his business becomes more and more busy, a communication tool that allows people to contact him anytime and anywhere has become more and more important. Moreover, after completing these horizontal projects started last year, Chang Haonan only has a small amount of 200,000 in bonuses and labor fees. Although he is certainly incomparable with those wealthy businessmen who do business, he can still be regarded as a person. This is a considerable amount of money, and at the same time, the price of an ordinary mobile phone has gradually dropped to less than 2,000 yuan, which is no longer completely out of reach for ordinary people. ?While thinking about this matter, Chang Haonan had already arrived at the door of the dean''s office in the same building. Although it was the weekend, Tang Lintian was still inside. For schools like Beijing Airlines, there is no inequality between colleges. The School of Aeronautical Science and Engineering is the core of the entire school. Not only are other majors generally set up around its needs, but the dean of the school will also have a stable position as vice president. ??So things like applying for a database can be done directly by contacting Tang Lintian. When he saw Chang Haonan knocking on the door, Dean Tang''s face instantly turned into a flower of joy. ?This somewhat exaggerated reaction even made the former feel a little chilly, and he hesitated for half a second before walking into the dean''s office. And the door was specifically left open. Dean, I... ??As a result, before Chang Haonan could express his intention, the other party stood up directly and pulled him to the sofa next to him. Then he stood up and took out a silver jar from an inconspicuous small compartment in the lower right corner of the filing cabinet on the other side. Xiao Chang, you have earned a lot of face for our school and our college this time... ??Tang Lintian took out the tea leaves from the jar, picked up the kettle, brewed it himself, and placed it in front of Chang Haonan. ?With this set of flowing movements, combined with the expression on his face, those who didn''t know it would have thought that Chang Haonan was some big leader who had come down for inspection. UhI ?Chang Haonan didn''t react for a while. Mainly because there are so many things that he has done recently to bring glory to the school and college, and for a while he didnt even know which one Tang Lintian was talking about. Academician Du has already told you that when the time comes to deliver his speech, he must mention the name of our school. ?Now he understood that it should be the matter of attending the event as a youth representative. Du Yishan had told him about it in the car before. "Of course. After all, our school has provided me with such a good platform. I have never forgotten the well-digger. Moreover, I am also the representative of our school. I must mention a few words." The straightforward statement made Tang Lintian feel relieved. Then Chang Haonan found the opportunity and told him the reason for his visit today. After finishing speaking, he picked up the teacup, prepared to moisten his throat, and then systematically described the value of this database. As a result, Tang Lintian next to him didnt even blink: I will tell the principal tomorrow to apply, apply immediately! (End of this chapter) Chapter 293 Changs model Chapter 293 Changs Model ?When he walked out of Tang Lintian''s office, Chang Haonan still felt a little unreal. ? He ??worked from school to research institute in his previous life, but he had never experienced this kind of efficiency in doing things. From entering the door to greeting to making the request and finally getting the agreement, it took less than 10 minutes in total. Even when we left, the tea was still warm. ?Standing in the corridor of the aircraft building, Chang Haonan was a little confused about what he should do in the afternoon. ?Before talking to Tang Lintian about the database, he had been thinking about buying a mobile phone and applying for a number. ?Two of the three major operators that everyone will be familiar with do not yet exist at this time - China Mobile will not be established until 1999, and China Unicom will not be established until 2000. In 1997, only China Telecom provided commercial mobile phone services. This company only became independent from the General Administration of Posts and Telecommunications in 1994. It has only been three years since then. It still has a strong official institutional atmosphere, such as not working on weekends. So this matter can only be done tomorrow. The computer room was still being renovated, so there was nothing he needed to deal with. ?After thinking for a moment, Chang Haonan remembered that just before he left, Tang Lintian asked insinuatingly about the progress of compiling the textbook... Finally he decided to go find Liu Hongbo. According to the impression from his previous life, this teacher almost never had a day off before he got married. As expected, it only took more than ten minutes. After searching several places where the other party often appeared, Chang Haonan found Liu Hongbo in the student office. Teacher Liu, good afternoon. Even though the two of them always addressed each other as seniors and juniors when they met, after all, they were in front of other people''s students. Chang Haonan thought about it and decided that there was no need to put on the airs of this senior uncle. ?Furthermore, in fact, the title Teacher Junior brother? Liu Hongbo himself didnt care about this. He was surprised when he saw that the person coming was Chang Haonan: "You came back at the right time. I just have a lot of questions to ask you." About the textbook? ?Chang Haonan wanted to know why the other party was so distressed. Speaking of which, he did not do it properly. The original plan was to come back and help compile the textbooks after finishing his work in Haojing. However, there was a project suddenly coming up at the 14th Institute, so in the end he had to let Liu Hongbo do it himself. I worked hard for two months. "Yes, I have almost finished the first five chapters according to the outline and ideas you gave me, which is from the introduction to the linear analysis of solid mechanics and structural mechanics. But starting from the sixth chapter, junior brother... are you really sure? Do you want to include the content of nonlinear finite elements? I tried to show it to first-year graduate students, but no one could understand it..." Liu Hongbo handed a piece of information he was holding to the student, and then took Chang Haonan back to his office. It should be said that this efficiency is quite good, because the latter outline has a total of twelve chapters, of which the last chapter is a program example. You can just copy and paste it, leaving eleven chapters. In terms of length alone, nearly half of it has been completed in two months. ?Of course, if you consider the difficulty of compilation, it may only be about a quarter... On the desk, the computer screen is showing a densely packed pile of tubes that are constantly winding and stretching. Chang Haonan remembers that this thing seemed to be called a three-dimensional pipe. It was a screen saver that many people liked to use back then. Due to mechanical problems with CRT monitors, if the screen remains motionless for a long time, the electron beam will bombard the same position of the phosphor layer for a long time, causing accelerated aging of the screen. Various screen savers are designed to prevent this from happening. But for Chang Haonan, this is indeed a long time ago. Only certain brands of OLED screens will experience similar screen burn phenomena in later generations, and screensavers have gradually become a historical term, although Juhardware still retains it in Windows 11. Of course Liu Hongbo didn''t know that Chang Haonan was thinking about so many things during the few seconds he stared at the screen. He shook the mouse twice to end the screensaver and then entered the password. The content displayed on the screen is replaced by a Word document. ??But this page only has a title. General Methods of Nonlinear Analysis ?There is a blank space below. I have rewritten this part for the third time. No matter what ideas I use, the feedback I get is basically the same, I just cant understand it. Liu Hongbo, who looked distressed, pulled Chang Haonan to his chair and asked the latter to sit on it. Then he moved a stool to the corner and sat next to him: I think we can start directly talking about solving the equilibrium equations later, skipping the nonlinear analysis part? "In addition, there is a section below, finite element analysis of heat transfer, field and incompressible fluid flow problems. I think this chapter has nothing to do with the theme of our textbook. These aspects are rarely used in the aircraft design process. " "besides" Obviously, Liu Hongbo was very careful in the process of writing this textbook. Otherwise, he would just pile up all kinds of theories and get some examples at random, and that would be it. He would not encounter these troubles at all, let alone make any suggestions. ?However, these designs of Chang Haonan are naturally well thought out, and many of them are pitfalls that he and his colleagues have stepped on before. "How about that? The three prerequisites for linear analysis are that the displacement of the analysis object is infinitely small, the material has linear elastic properties, and the boundary conditions remain unchanged throughout the process. But for most problems, especially those involving large deformations , this assumption simply does not hold. ?Chang Haonan immediately shook his head. He would never give up the corresponding request because of the difficulty. Because life is not a game, there is no story mode difficulty option, and if it is not taught in school, it can only be learned at work. At that time, it was not as simple as passing a subject. "Not to mention, when I did the wing flutter analysis for the MA-60 last year, I used a combination of nonlinear finite elements and nonlinear beam models. If you haven''t even learned the basic theory, how can you solve the practical problem? When there is a problem, you will definitely suffer a big loss. But we must also consider the acceptance level of students. Liu Hongbo tugged at his thick hair: "The model you proposed is now called Chang''s model in our industry. That is to say, the teacher suppressed the original results and did not publish them publicly. Otherwise, you would probably be a fellow of the American Society of Civil Engineers... You can''t count on everything. The students all have the same standards as you. I dont have that thing Chang Haonan waved his hands and was about to say that he was not interested, but suddenly he noticed a question: Wait, why the Institute of Civil Engineers? (End of this chapter) Chapter 294 Writing a textbook is really a beautiful thing. Chapter 294 This textbook is really a beautiful thing. Because todays civil engineering often has nothing to do with soil and wood, but the study of structural mechanics, which happens to be in great need of results like yours. Liu Hongbo shrugged and replied. "All right" After a brief digression, Chang Haonan quickly returned to the textbook: In short, no matter what, we still need to lay a good foundation, so that even if we cant apply it in the future, at least we wont make a big mistake when we go to work and apply what we have learned. Furthermore, if we graduate students from Beijing Hang University cant even understand nonlinear finite element analysis, then others shouldnt laugh at us to death? The last sentence was obviously very lethal. After hearing this, Liu Hongbo immediately stopped expressing his objections: But we have to find a way for students to continue learning. "This is a matter of teaching material arrangement. If you ask them to do nonlinear analysis of universal states, of course they will get confused. We can lower the threshold a little and take it step by step." Chang Haonan pushed the keyboard stand back under the table, then took a scratch pad and a pen from the side, and drew a table with a few strokes: "In the first step, we first analyze the problem where only the material is nonlinear and other assumptions remain linear. In the second step, we extend the problem to nonlinear materials and large displacement but small strain. Finally, we consider universality. A completely nonlinear problem..." As for the specific arrangement of the content of this chapter, it should also include more examples, and try to let them understand some relatively simple things from these examples, such as deriving the incremental motion equation of continuum mechanics..." As he spoke, he wrote down an equation with a not complicated structure on the paper: Ҧ(0)^(t+t)(i)u(i)dV(0)^(t+t)R=f(t+t)^Su(i)^SdS(0)+ f(t+t)^Bu(i)^dV(0) "If we can guide them to this step, then whether it is only material nonlinearity, or the complete Lagrangian form and the updated Lagrangian form, they can be easily obtained through transformation, or they can be deepened in two chapters. Understanding when analyzing basic structures such as frames and thin-walled rods. "Well" Looking at Chang Haonan who was writing furiously, Liu Hongbo felt confused for a moment: I know this equation, but the derivation process...would you like to write it down in more detail? ?Many years later, almost all engineering students will remember the names Chang Haonan and Liu Hongbo unforgettably. When I was in school, my feelings towards these two textbook editors were basically gnashing of teeth. ?However, after entering the workplace, they often invariably take out this textbook that often appears in their nightmares. Some people even burn incense on that book before running the simulation program also designed by Chang Haonan, hoping that the ancestor will bless everything well. ??However, few people know that during the writing process of this sacred book in the field of engineering simulation, the second editor also went through a mental journey that was very similar to the one they had during class... Of course, writing a book cannot be explained clearly in one afternoon. Chang Haonan talked from afternoon to evening before sorting out the basic structure of Chapter 6 for Liu Hongbo, and then based on his experience during this period. Through the work, a series of after-school exercises that have been declassified but are still very practical have been refined. ?In his previous life, when Chang Haonan was in school, he was very troubled by the random difficulty gradient design of the after-school exercises. Some of them could be calculated with almost no effort, while others were difficult to get right even if he thought about it. Whats even more despicable is that the answers to many of the exercises are also very unintentional. So there is a poem that says: That is to say, it is easy to see the commonplace, just follow the example above. The answers to the exercises are left here so that it is not difficult for the readers to prove themselves. The opposite is true in the same way, and the inference is naturally established. Omitting the process QED, it can be seen from the above that the proof is complete. So, even though he was given a lot of complex exercises, he still considered them carefully and at least wrote down his solution ideas in the answers in detail. Its really kind. In fact, the process of writing textbooks is not just an output process for Chang Haonan. Since the sources of his theoretical knowledge are complex, including but not limited to what he learned from various papers in his previous life, what he learned at work, what he learned after his rebirth, and what he learned from the system, even from a personal perspective, he needs to do this. An opportunity to sort out your own knowledge system. The intuitive result of this kind of sorting out is that after several hours of discussion with Liu Hongbo, the system''s [theoretical experience] actually increased slightly by 300 again, reaching 8800 points. ?This made Chang Haonan want to go to the other party to communicate with him the next day.?????But this is just thinking about it. Even though Chang Haonan only lectured for one afternoon, it would take more than ten days at the fastest to convert what he said into a textbook and then input it into the computer. You can only do it slowly. The following week was the calmest period since Chang Haonan was reborn. In addition to the daily routine communication with Zhejiang University about the feasibility of replicating a stratospheric airship in the zero wind layer to provide information relay services, the only thing worth mentioning is that Chang Haonan finally put his long-cherished project into practice. I applied for a mobile phone number. ?At this time, you cannot open a card at any time like you did later. Instead, you have to register personal information and pay a deposit, and then wait for about a week before you can get the phone card and mobile phone. Ericsson GH337, 1,700 yuan. ?The cheapest style chosen by Chang Haonan. It looks like a walkie-talkie, and the screen is too small. When this model first entered China in 1994, the price was close to 10,000 yuan. However, the development of mobile phones in this era was almost as fast as the Internet. With the advent of models with a series of new functions such as color screens, flip keyboards, polyphonic ringtones, etc. , the price of the old model is almost the same as diving. But its enough. In the end, mobile phones these days are really just "mobile phones", unlike smartphones more than 20 years later, which have almost become a personal information terminal. Therefore, as long as the network standard does not become outdated, there is no need to upgrade to a new model. necessary. ?Although Ericsson GH337 is old, it is the first GSM mobile phone to enter China, so Chang Haonan can choose an 11-digit number starting with 139 instead of the 7-digit number of the analog network. It also means that the number can be used forever if he wants to. This is undoubtedly good news for Chang Haonan who is too lazy to bother. ??When he walked out of the telecommunications business hall for the second time with the phone card installed, his inner emotions were quite complicated. On the one hand, this made him feel as if he was closer to the era before his rebirth. On the other hand, it also means having to bear the side effects of mobile phones - Jobs are coming to your door faster. It can be said that it was not what Chang Haonan expected. Apart from the tentative dialing, the first phone call that actually came to him to ask about something was from Du Yishan. It was when Chang Haonan was having lunch at home one day. The other party said that the equipment debugging work of the high-performance computing center is nearing completion. According to the school''s arrangement, when it is officially opened in three days, he, the acting director, needs to personally run a program. ?The logic is similar to that of a supervisor shoveling the first shovelful of soil when a construction project breaks ground. Anyway, its just a good start. It doesnt necessarily need to be complicated, but in short, there must be no bugs. In short, it must be prepared in advance. (End of this chapter) Chapter 295 Am I a godfather? Chapter 295 Am I a godfather? Chang Haonan has been struggling for a while about what program to run on China''s first university-operated supercomputer. What he is best at is of course programming to calculate numerical solutions to partial differential equations, which is also the essence of all numerical analysis and computational simulation processes. ??But on the one hand, this kind of procedure is generally complicated. On the other hand, it is impossible for all those attending the ceremony to be industry insiders, and outsiders will certainly not be able to understand it, and they may not think that this kind of thing that will output a bunch of dry parameters in the end is very powerful. So he finally decided to change his mind. The most simple way is to run a helloworld. This is the first demonstration program in the book "C Programming Language", which is extremely classic and can be called the programming bible. Affected by this, almost all programming teaching around the world will use the output helloworld as a starting point for students to get started. ? Any programmer may not use C language, or may not like C language, but he has basically written a program with similar functions. ?However, in 1997, computers had not yet become a required course for college students across the country, so basically only experts knew the ins and outs of it. Even if this program is written in assembly language, it only takes about twenty lines, and high-level languages ????such as Java and Python (Note 1) can be completed in one line. Succinct and powerful. Experts will only smile knowingly when they know you are making fun of it, and will not dislike the simplicity of this program. However, although laymen do not understand, but just from the perspective of watching the fun, they will also feel that this is very consistent with China''s current development theme towards the world. . very perfect. Chang Haonan, who finalized the plan, quickly wrote a simple unveiling ceremony process based on his previous life experience and handed it to Tang Lintian ?Although Du Yishan has been dealing with Chang Haonan on this matter, if it really comes down to the administrative work of providing money and people, it is best to have Dean Tang handle it. As for the details after the general framework is in place, Chang Haonan does not need to worry about it. ?Although it is not yet possible for the school to assign him a secretary in a big way, there will always be someone responsible for these things. According to the original plan, in the next three days, Chang Haonan only needs to prepare a slightly more formal suit (paid for by the school, of course), and then read the script of his speech on the day of the unveiling, so as not to get stuck on the spot or read the wrong words into the script. . As for the rest of the time, I mainly work with Fang Zhen to optimize the design of the stratospheric airship that is being developed with Zhejiang University. Of course, Chang Haonan no longer needs to do this kind of work himself. He only needs to give guidance on the key points of some algorithms. ?Although it has only been a short year since they were reborn, many people''s abilities and destinies have already been changed by Chang Haonan. Just like Fang Zhen, at this time last year he couldn''t even figure out the dipole grid analysis of a beam-type wing. But this year, although it seems that Chang Haonan and Yao Mengna are falling further and further behind, they have actually already fallen behind. He has become one of the top experts in aerodynamic analysis and optimization. Otherwise, Zhejiang University would not have crossed half of China to find him as an airship. ?This feeling, for a person like him who has experienced two lives, is simply not a good feeling. At five o''clock that night. Brother, please be busy first, Im going home. Chang Haonan looked at the wall clock on the wall and confirmed that it was time to get off work. He quickly closed the lid of his laptop, stood up, put on his clothes and prepared to leave. ??? Taking advantage of his free time these days, he had to experience what it was like to work a nine-to-five job that he had never experienced in his entire life. "good" Fang Zhen just raised his head and said a word. Before he could say a few words, he heard a knock on the office door. Then a timid voice sounded outside. Hello, is Teacher Chang Haonan here? This sentence stunned Fang Zhen, Chang Haonan and Xia Tian in the office. Then they all looked at the door. ?There were three people standing there, two men and one woman. ?Judging from his age, he is similar to Chang Haonan and Xia Tian, ??but much younger than Fang Zhen. They should all be students. I am Chang Haonan, but I am not a teacher yet. Although he was a little curious about the purpose of the visitor, he still put his clothes on the back of the seat again. In any case, there is basically no hope of getting off work on time. You are looking for me... ?Perhaps it was Chang Haonan''s answer and his too young appearance that made the three visitors a little at a loss. After about ten seconds, the girl who first knocked on the door opened her mouth to explain again: "Ah... we are students from the Department of Computer Science and Technology of Yenching University. We are here to ask you for advice on the universal application of differential evolution algorithm (DE) in constrained optimization problems. This is the responsibility of the three of us. Student ID card, and this, is the situation statement written by Teacher Yang Fuqing for us, stamped with the college seal... The three of them took out a lot of documents and information at once. ??He even caught a glimpse of two panda cigarettes, which were very popular in this era, in one of the people''s bags. It is estimated that it was originally intended to be given as a gift to "Professor Chang Haonan", but his real age is obviously slightly different from the expectations of the other three... Chang Haonan didn''t care much about this. On the contrary, he didn''t know how to deal with it if the other party really wanted to show it, so he pretended not to see it and directly took the other party''s ID and the letter explaining the situation. Yan Da It must be admitted that Beijing Airlines and Yanda are not schools at the same level. The former is of course very important in the aviation industry system, but no matter which country it is in, industry and academia are two separate circles, and the former is generally at the lower end of the contempt chain. So Chang Haonan was a little happy to meet three Yan university students who came here to ask for advice. Because he suddenly had a bold idea. Since the fate of many people and projects has been changed because of him. ?What about schools? Now there is only one year left until May 1998... Who said that the C9 alliance cannot become the C10 alliance? Of the three, the girl who keeps talking is called Lin Zhi, and the other two boys, one tall and one short, are a bit taciturn. The tall one is named Song Tingyu, and the one who is slightly shorter and fatter is called Jian Feiang, who looks a bit like Wu Yifan. They came here because they wanted to participate in this years International Competition on Evolutionary Algorithms (ICEO) in Indianapolis. ?Yang Fuqing, who wrote this note, should be an academician with qualifications close to that of Du Yishan, but neither she nor the three students specifically mentioned this, probably because they were afraid of being misunderstood as using their reputation as an academician to pressure others. This competitionif it were overseas, I would definitely not be able to attend Although it was not stated explicitly in the letter, it can still be seen from the meaning between the lines that Yang Fuqing seemed to want to directly ask Chang Haonan to be their instructor. Normally speaking, this kind of job of leading a team to compete abroad is definitely a good job. Not only can you go abroad for a tour at public expense, but if the students you lead get good grades, it will also be a huge bonus for the teacher. But Chang Haonan''s situation is special after all. Whether it is from the perspective of confidentiality or safety, the organization will not let someone like him go abroad casually, and he himself is not worried about the situation on the other side of the ocean. Well... Teacher Yang said before coming here that if you have something to do and cant leave, you can just use the name of your instructor. Judging from Lin Zhis reaction, Chang Haonan is 80% sure that this was her own temporary thought. However, in most cases, such competitions do only require the presence of instructors, but not all of them. Well, lets talk about your specific problems. ?Chang Haonan has completely given up on the idea of ??going home from get off work. "That''s right. In May last year, that is, before you published that paper, DE had already achieved good results in the first ICEO held in Nagoya. There were five test functions at that time, namely the ball model f (x)=(i=1.n)(xi-1)^2, xi[-5, 5], classical Griwank function (Note 2)..." When talking about professional topics, the short Suga Feian changed his slightly dull look before and stepped forward to fluently introduce to Chang Haonan the situation of the first competition last year and the expected results of the second competition this year. Involved directions, etc. In the three bags of information they brought, there was a box of floppy disks containing the complete algorithms submitted by all the contestants last year. "Um" ?Chang Haonan inserted a floppy disk into the floppy drive. ??While reading the tape, he casually asked the question he was curious about just now: Why do you think of coming to me? And the proposer of the DE algorithm should be at Berkeley. Are you so confident in defeating their local students? ??Two men and one woman looked at each other, with strange smiles on their faces. "often" Just call me Chang Gong or Dr. Chang. "Dr. Chang, although Professor Stern and Professor Price are indeed the fathers of the DE algorithm, after all, they are only preparing to determine the coefficients of the Chebyshev polynomial. It is you and Researcher Xu who really popularized this algorithm. , so now in the industry, especially in the circle where we are preparing to participate in the second ICEO, you are generally called the godfather and godmother of the DE algorithm..." ?This answer almost made Chang Haonan stop. Hey guys, have I become a godfather? 1: These languages ??are called high-level languages ??just by convention, and it does not mean that they are more powerful than assembly language and machine language. As the saying goes: Having studied real variable functions for ten times, I feel disheartened by functional analysis. The random process passes randomly, and assembly language cannot compile it. It can be seen that assembly language is still difficult to learn 2: Original test questions: (End of this chapter) Chapter 296 Combining theory with practice Chapter 296 Combining theory with practice Of course, Chang Haonan also knew that the godfather mentioned by the other three people did not actually mean the same thing as the godfather in the mafia movie. Rather, it refers to a person who, in a religious context, is given a Christian name when he is baptized and promises to undertake his or her religious education. The general meaning is that although the two Berkeley professors gave life to the DE algorithm, Chang Haonan and Xu Yang were the ones who gave the DE algorithm the soul. Considering that very few Chinese people would speak in this way, what the other party said should still have a certain degree of credibility. For Chang Haonan, it is also a good thing to make a name for himself in the fields of engineering theory or algorithms that have nothing to do with confidential projects, which is equivalent to giving him an excellent disguise. Truth and falsehood are the secret of confidentiality. Otherwise, as a person who has done nothing on the surface, your status will jump up like a rocket. It is not difficult for someone with a little bit of brains to figure out the reason. ?At this time, the files in the floppy disk are also read out. ?Chang Haonan opened one of them. "This is the algorithm from Princeton University that won the first place in last year''s ICEO competition. The file below is from Kyoto University that won the second place. Since Nagoya University did not participate, they were considered last year''s host. These two schools will also participate in the second place this year. It should be our main competitor. Lin Zhi introduced it in a timely manner from the side. First place...let me take a look. ?Chang Haonan opened the first program file inside. "The optimization efficiency of these two algorithms is indeed very high. Last month we used the optimized DE algorithm to improve the efficiency of these five test functions. Although it has been greatly improved compared to last year''s third place result, I still cant compete with them, so I thought Id trouble you to see if theres any further way. Suga Feiong said and picked out another one from the floppy disk box: This is the result of our design. "Don''t worry, let''s take a look at theirs first. They are quite capable of being so much faster than DE." Actually, Chang Haonan was a little surprised when he heard that the differential evolution algorithm only came in third place. Even before he made improvements and optimizations, the efficiency of DE should in most cases exceed the simulated annealing algorithm that was more popular in this era and the genetic algorithm that was about to become popular in the original timeline. Considering that the test functions we just looked at are all normal, there is nothing weird about them. Getting third place is either because the contestant is not good at studying, or there are some other reasons ??If there really was such a powerful algorithm, it would have become famous in the academic community. Because the competition time was limited and the test function was not complicated, Chang Haonan finished reading it in no time. Of course, normally after reading it, you have to analyze and test the key parts, but with his current theoretical level, which is close to LV3, he can save the previous step to a large extent. "this thing" Chang Haonan frowned and first tried to run the Michalewiczs function in the test question. It is a relatively uncommon kind of benchmark function, at least in this era, because it is a single-objective optimization function that contains several local minima and planar regions, in which all z values ??are almost equal. For absolute Most algorithms are not friendly. The results were very good indeed. "We have tried several methods, but we can''t achieve their high efficiency. You can run the fifth test function again, and the results are even more exaggerated. Therefore, in the past year, some people have always suspected that these two groups were responsible for the test. Because of the fraud, the organizers only released all the relevant documents under pressure last week. Song Tingyu, who had not spoken just now, said in a hoarse voice. This also explains why they insist on choosing DE even though they know that there are more efficient algorithms. Its not because they are admirers of the DE algorithm, but because they always thought others were cheating. ?But no matter what, their choice was correct. Because Chang Haonan had already understood the little tricks played by the other party. Comparing suspected cheating with real cheating, after all, it is still a bit less interesting. No need, I probably understand what they did. ??He said, opening the second-ranked file and browsing it faster than before. Huh????Ling Zhi''s surprised voice was just halfway out, and she quickly covered her mouth. They originally planned to come over today and hand the things over to Chang Haonan, and then go back and wait for news for a few days. Just now I was ready to take out the gifts and leave. The result was announced on the spot? As long as we change the testing method, these two algorithms will be revealed. ?Chang Haonan moved his body and began to build a new mathematical model. ?Minf(r,n)=-(i=1,m)R(ni) s.t.g1(r,n),g2(r,n),g3(r,n) 0ri1niZ+1im Although they had no background and only had a few broad mathematical formulas, the three of them were worthy of being selected by Yan to participate in international competitions. One of them, Feian Suga, quickly saw the practical problems corresponding to this model: Should this be a reliability redundancy calculation for a series system? Chang Haonan has not even written the notes on the physical quantities represented by each symbol, so it can still be seen. On the one hand, it shows that his mind is really moving quickly, and on the other hand, it also shows that he must have done a lot of homework in the past. Physics is not pure mathematics. No matter how smart a person is, if he encounters a physics problem that he has never been exposed to before, he will not be able to see through it at a glance. Yes, but dont underestimate this simple series system. Since they already understood it, Chang Haonan was happy to save himself the trouble of explanation. After running the first algorithm to start optimizing, he nodded and replied: "There are many complex equipment, such as the over-protection system of gas turbines or internal combustion engines, which correspond to this model. How to squeeze out the potential of the equipment as much as possible and compress redundancy without affecting the safety of the system has become the optimization goal of engineers. In the past, this matter could only be accomplished with experience. Therefore, giants such as Siemens, Mitsubishi Heavy Industries, General Electric, and Ansaldo entered the industry earlier and accumulated richer data and experience. Even with the same skills, With technologically advanced hardware equipment, their unit performance indicators are also much better, which brings them more customers, which in turn provides them with more feedback data, forming a virtuous cycle. Therefore, under this model, later No one can ever surpass them." "But with the efforts of algorithm engineers like us, this kind of control problems have gradually begun to escape the realm of pure experience in recent years. We can get some theoretical guidance to speed up the development efficiency of control systems, which also gives us those who have not caught up. It is possible for countries in the Industrial Revolution to catch up from behind. Actually, what Chang Haonan said is exactly what he has been doing in the past year Not only through his forward-looking vision, but also through technical means to improve scientific research efficiency, so that limited funds can play a greater role than others. After hearing these words, the three people next to him were startled at the same time, and then showed different expressions, but they were all obviously thinking. In the late 1990s, the computer major in China was prosperous for a few years, but the foundation was shaky. During this period, the popularity of the accounting major was quite blind. The real first-mover bonus period was already in the early 1990s. It was in the past, and the computer industry hadn''t really developed yet. As a result, these students graduated just in time for the collapse of the Internet bubble, and their encounter was almost similar to the group of people who studied biology at the beginning of the 21st century who listened to the nonsense that "the 21st century is the century of biology". ?Except for a few big guys, most people will not be able to survive the industry explosion in more than ten years, and have already changed careers. Entering school under this background, even undergraduates from a school like Yan University may not actually know the use of what they learn. Many people are simply used to studying hard, or they pass the exam without studying hard at all. With very high scores, I chose the major with the highest score. After all, even in the information age more than 20 years later, college entrance examination candidates understanding of university majors is still low enough for college entrance examination registration and career planning to become an independent industry, let alone now. The three of them were actually just sophomore undergraduates, and had not seriously considered issues such as the use of what they had learned before. ?Now that I heard Chang Haonan say this, I really felt something for the first time. ?While a few people were talking, the optimization algorithm running on the computer came to an end. ?But unlike the previous times, it doesnt really output anything. There is no need to continue. ?Chang Haonan stopped the program and opened the log file, and quickly found the crux: There is a problem with the method of handling constraints, so it cannot converge, and it will not output a valid solution no matter how hard it is run. Three faces of shock.jpg "You see, although these two functions cannot be regarded as cheating, they actually take advantage of the competition system. The first-place algorithm is only suitable for componentized competition verification functions. It cannot be called a general optimization algorithm at all. It is almost incapable of solving complex practical problems. The ability of the second place is slightly better, but it needs to calculate the Latin square, which is not suitable for situations with too many parameters and has great limitations. In other words, the top two are test-oriented algorithms that are completely designed for competitions. Chang Haonan analyzed: Of course, from the perspective of competition, general algorithms are not nobler than them, but personally, I still hope that the development of algorithmic science can be closer to the actual application level, and... When he said this, he hesitated for a moment, because the following content was indeed entirely his inference, but he finally said it: And based on your description, I estimate that this competition may add some restrictions on this behavior, such as adding a non-standard model or function to the test process. In short, Chang Haonan became the last person to leave the laboratory that night. (End of this chapter) Chapter 297 The Seiko Plan is gradually gaining momentum, and the third-generation aviation Chapter 297 The Seiko Plan is gradually gaining momentum, and the third generation aviation engine is being prepared! Chang Haonan initially thought it was just an interlude when he guided three YSU students in the International Evolutionary Algorithm Competition. It was not until the day of the unveiling ceremony that Du Yishan took two academicians, Yang Fuqing and Wang Yangyuan, and introduced Chang Haonan to them, that the latter realized that this incident might have a deeper impact. To outsiders, Academician Yang may be more famous for founding a company called Beida Jade Bird. But for those in the know its a different story. Due to special historical reasons, the achievements of many academicians in our country may not be particularly dazzling when viewed internationally. In the late 1960s, Yang Fuqing presided over the development of the operating system of the "150 machine", the first million-time integrated circuit computer in China. ? Wang Yangprin presided over the development of the memory of this computer during the same period, which directly shortened the gap between domestic semiconductors and the world''s leading level by almost 10 years in the mid-1970s. Those were 10 years in the semiconductor field! Although the performance of the 150 machine is almost nothing to mention in the world, it is only one percent of the fastest computer computing speed at that time, but it is an important milestone in the development of electronic computers in our country. In a special period, it completed the work for the aerospace industry and The nuclear industry safeguards its mission. It is no exaggeration to say that the emergence of these two people at the same time directly increased the influence of Beijing Airlines'' computing center to a level similar to that of the recently completed National High Performance Computing Center in Luzhou. ?Of course this is also a signal to the outside world - The state encourages universities with the ability and resources to establish their own supercomputing centers. Due to Chang Haonan''s relatively special status, the scale of the ceremony was not large, and it was even held indoors. But the specifications are very high. ? ? Some well-known schools in Beijing basically send their leading experts and professors to participate. Of course, Chang Haonan is still self-aware. Most of them should come here for Yang Fuqing and Wang Yangyuan, not for themselves. ?But no matter what, the scene is already profitable. ??Although this is not the first time to participate in this kind of event, it is indeed the first time to be the protagonist, or to be the protagonist in the capacity of a leader. ??I still feel a little bit nervous in my heart. Fortunately, the manuscript arranged for him was very considerate. The characters were written in very large words, some were error-prone or unfamiliar, and even pinyin was specially noted at the end. As for the assembly language program that outputs helloworld, it is the most stable. ?The machine will not be nervous. In short, everything went well. After the ceremony, there was a regular luncheon. As Chang Haonan expected, after the two academicians chatted with him for a few words, they saw a huge flow of people approaching from a distance. The former is still a little uncomfortable with this kind of scene, but the other two are obviously used to it. ??Yang Fuqing took out a notebook from her jacket pocket, quickly wrote down a few numbers, then tore it off and handed it to Chang Haonan. This is Lao Wang and Is office, as well as our home phone. If Xiao Chang you need any resources in the computer field in the future, we can try to help. ?Chang Haonan quickly took it into his hands. Thank you, Academician Yang. ??Now he is not as excited as he was when he first met Du Yishan at this time last year, but being able to get his personal phone number is obviously equivalent to a kind of recognition. As for why the other party made such a high gesture, Chang Haonan was a little confused for the time being. In short, it cannot be as simple as helping the three students recommended by Yang Fuqing two days ago. The people present today were all adults. Even if they were present for the sake of two academicians, they would not be able to do something stupid like leaving Chang Haonan alone. Therefore, it took him almost ten minutes to finally accept the entire A round of congratulations. Chang Haonan breathed a sigh of relief and squeezed out of the crowd, ready to take a rest and find something to eat. ?One good thing about being a leader is that you only need to show up for such activities. ?However, as soon as he put a piece of beef on the dinner plate, another man who looked quite young appeared next to him. Hello, Chang Gong. ?Chang Haonan turned his head helplessly, preparing to accept the other party''s routine congratulatory message. However, the other persons next sentence was: My name is Wei Yongming. I am a graduate student majoring in precision instruments at Qinghua University. I would like to discuss with you topics related to process optimization and process control of metal thermal processing. ??Although Chang Haonan has realized that he has indeed gained some fame in control theory, his first reaction was still surprise. Metal thermal processing? ?This field is not something Chang Haonan has ever been involved in, and in my impression, Qinghua University is not known for its expertise in metal material processing technology-related fields. Yes, this is part of a large project our school received from the 410 Factory this year, and it has been included in the key development targets of the Seiko Plan. Hearing this, Chang Haonan understood. No wonder he found me. ??He still has the title of general consultant of Seiko Project, and he is waiting to become a full-time employee after graduation in two months. ?You still have to listen to it. After all, it is part of the job. ??And he also wanted to know to what extent the Seiko Project has developed in the past six months or so. Why dont we go and eat and chat next to each other? ?Chang Haonan suggested as he lowered his head and glanced at the meatloaf on the plate. A few minutes later, the two people sat at an inconspicuous long table nearby. "This project is mainly divided into two parts. One is to upgrade the previous EDM drilling equipment of the 410 factory to develop a micro-EDM CNC machine tool. The second is to develop a new investment mold for high-niobium titanium aluminum alloy materials. Precision casting process. "We have completed the EDM part relatively smoothly so far and have entered the prototype development stage. However, we have encountered some difficulties in the latter part because the investment casting process involves the effects of force, heat, and electricity at the same time, and the materials The performance and crystal phase are inherently affected by the elemental composition, and there are too many independent variables. We have almost exhausted all the methods we can think of, and still cannot simulate the entire continuous or even semi-continuous casting process well. " After Wei Yongming introduced the situation, Chang Haonan immediately understood what Factory 410 was going to do. Due to the successful completion of the Turbojet 14 plan, they are upgrading equipment and preparing for the production of third-generation turbofan engines! Needless to say, the electric discharge machining system, the temperature in front of the turbine of the third generation will increase to 1200C, requiring more complex active cooling technology. In addition to being more difficult in design, it is also a huge challenge for processing. The high-niobium titanium aluminum alloy mentioned in the second item has become one of the indispensable materials for advanced aviation engines due to its advantages of high melting point, high strength, high modulus and low density. In other words, after ten years of repetition, Turbofan 10 has finally taken its first real step. This is a small step for the 410 Factory, but a big step for China''s aviation power industry. (End of this chapter) Chapter 298 Multiphysics simulation Chapter 298 Multiphysics Simulation ?Thinking of this, Chang Haonan suddenly felt that the name Wei Yongming seemed a bit familiar. He was quite sure that this was the first time he had contact with Qinghua University since his rebirth. Then it should be someone who has heard it in the previous life. "Casting process testing requires a lot of financial resources and time, and as you know, these two things are what we lack most now. At present, the United States, Japan and Russia, the pioneer countries, have been researching titanium-aluminum alloys for many years. We rely on traditional means to It is difficult to catch up with them in a short time, but the decoupling method we are currently using has basically reached a dead end, and the project team has great differences in the subsequent route selection. " After briefly introducing the current situation and the difficulties faced, Wei Yongming asked Chang Haonan with expectant eyes: "So, I am here to ask you, with the current technical means, is it possible to simulate the casting process on a computer through numerical calculations like fluid mechanics or structural mechanics? " Although he is only a master''s student, his summary ideas are clear and organized. He is definitely deeply involved in the entire project, rather than someone who simply started. ?His question even stumped Chang Haonan for a while. Actually, this is not the first time that the latter has faced similar problems. Yan Zhongcheng mentioned before at the celebration party of Sanmen that Liming Factory plans to use 1Cr16Ni2MoN martensitic stainless steel to produce aeroderivative gas turbine blades through hot forging, but there is a gap between the deformation, heat transfer and organizational evolution of the material. The interaction greatly limits the application of the finite element method in hot forging processes that need to fully consider the influence of microstructure. In the discussion about the Star of the Sea radar some time ago, Guo Lin also mentioned that a big problem faced by 14 is that the large-diameter active phased array antenna on the ship is exposed to sunlight, wind load, salt spray erosion, etc. Under the influence of environmental loads, the antenna array will inevitably undergo structural deformation, deteriorating the antenna radiation performance, and requiring more power to be consumed to achieve the same transmit power. However, increasing the input power will bring greater thermal power consumption. In addition to wasting the already precious electric energy on the warship, temperature-sensitive T/R components and array power supplies will also cause performance temperature drift, resulting in T The excitation current output by the /R component changes, further deteriorating the radiation performance of the antenna. ?Although these issues may seem unrelated and involve completely different fields, the dilemmas faced by everyone are the same - Compared with aircraft aerodynamics and structural design, which basically only need to consider the influence of mechanics, they are designed to involve more physical fields, and they have a very close impact on each other. For the currently popular calculation and analysis methods, there is no way to simultaneously Calculate and optimize so many physical quantities. In traditional calculation methods, when nonlinear conditions are introduced, the calculation needs to iterate among multiple sets of partial differential equations many times in order to obtain convergence. However, casting problems involve material nonlinearity, geometric nonlinearity, and boundary nonlinearity at the same time. Iteration The extremely low efficiency means that the calculation time needs to be measured in months or even years, and there is a high probability that the final result will be divergent. ??And if these physical fields are separated and calculated separately, the coupling effect is ignored, causing the simulation results to be completely unable to fit the actual situation. As far as existing technical means are concerned, there is no solution to this problem. So what Chang Haonan has always wanted to do during this period is to write a new, comprehensive multi-physics simulation modeling software. But this requires high theoretical support, at least beyond the current era. This is also the reason why he urgently wants to upgrade the system''s theoretical ability level to LV3. After taking some time to summarize the language, Chang Haonan gave his answer in a cautiously optimistic manner: "Traditional decoupling methods, including the recently developed indirect coupling methods, can only deal with weak coupling problems between multiple physics fields. Strong coupling problems cannot be directly decoupled, so it is meaningful to continue to try in this direction. Its really not big. "For example, the casting process you just mentioned involves a fluid-solid coupling. Only under the assumption of small deformation, this is a weak coupling problem, because the flow channel will affect the fluid, but in turn the fluid will affect the flow channel. The effect can be ignored, and such problems can be solved by decoupling. But the casting process doesnt fit this hypothesis Wei Yongming''s eyes dimmed slightly. Obviously, he hoped to continue using numerical calculations. Because this is the only possible way for China to achieve technological leap forward. Yes, but its not completely hopeless. Chang Haonan nodded: I am developing a fully coupled solution method. If it goes well, then... ?If multiphysics simulation can be summarized into a mathematical problem, it is actually solving a system of partial differential equations with a high degree of nonlinearity. However, since engineering only requires numerical solutions and does not require analytical solutions, the overall difficulty should be relatively good. ?In addition, in the original timeline, FEMlab was renamed COMSOL Multiphysics in 2005 and officially entered the field of multi-physics simulation. The time span is 8-10 years, and LV3 level theory should be enough to cope with it. What''s more, things like engineering software always need to collect data for version iteration. It is impossible to expect that the first release will be perfect. Even if only the most basic force-thermal coupling can be achieved at this stage, for almost all industries, It can be called a huge help. If everything goes well, there may be some phased results in the second half of the year. He still did not choose to open the champagne at halftime. Wei Yongming, who was a little disappointed just now, suddenly became excited: So, can we continue to use numerical analysis to shorten the research cycle? ??If someone else drew such a pie, he probably wouldn''t even look at it seriously. But who has the final say? Before coming on this trip, Wei Yongming had certainly done some homework. ? Judging from past experience, the phased results mentioned by the general counsel are generally not phased. It is the kind that can be directly solved by putting it in a topic. Of course, or rather, this is the ultimate goal of my research on algorithms and control theory. ?Chang Haonan smiled and nodded. Life sometimes has some wonderful symmetries. For example, he just told three students from Yenching University a few days ago about something similar. Now I said it again to a student of Qinghua University. If you want to do your job well, you must first sharpen your tools. Although waiting for about half a year may cost you some time, it is worth it in exchange for higher efficiency in the end. ? As a scientific research dog working on projects in his previous life, Chang Haonan chose the second half of this year as the time node, naturally taking into account the actual situation faced by Wei Yongming and others - Scientific research projects must submit phased summary reports at the end of the year. ??If he supports this software until next year, the project team is likely to choose to return to the traditional route under schedule pressure to ensure that the report at least has content that is easy to write. ?Experiments are of course necessary, but the cost of experiments lacking theoretical guidance is indeed too high for China today. (End of this chapter) Chapter 299 Won an award Chapter 299 Winning the Award ?But this time, Chang Haonan was obviously a little worried. ?After hearing his words, Wei Yongming almost immediately thought about what to do next: If a breakthrough can be made in numerical calculation methods within one to two years, I will have a way to convince the project team to continue in this direction. "oh?" Chang Haonan became interested when he heard this: In this project of yours, are there other parts that have nothing to do with the casting process? Being able to make such a statement, it is obvious that he still has enough results in hand to cope with the mid-term review. And it can be done without Chang Haonan''s software. ?Of course this is also Party Bs usual routine - The progress cannot be shaken out all at once, it must be kept in a steady flow, and a part of it should be held in the hand just in case. Just like writing, you cannot send out all the manuscripts at once. You need to keep some in your hand in case of glitches or emergencies. Otherwise, like some authors, you have to take out your mobile phone to code words between meetings to prevent interruptions. . "Well... it can''t be considered irrelevant. We are planning to build an embedded operating system for the equipment used in these two projects that can be fully operated and maintained independently. When we go back, we can adjust the priorities and put this matter at the front. It will probably take at least a year. Wei Yongmings words are astonishing. If he can really accomplish this, the influence will be at the same level as the new software Chang Haonan just mentioned: "I have inspected many CNC machine tools used by domestic manufacturers in the past two years, and found that many foreign industrial control software locks our permissions at the system level. Even if we do not consider after-sales issues, it is difficult to unlock it. In the contract for purchasing the equipment, They are all overlord clauses. Many problems that can be solved by just a technician must be paid a lot of money to fly their engineers from abroad to deal with them, which costs thousands or tens of thousands of dollars every time. I dont think this can continue. "In the past two years, due to the release of the Chinese version of Windows 95, we have lost a battle in the desktop operating system. Although the embedded operating system is not eye-catching, it actually has a greater impact on production and life. We must not treat it as such anymore. This thing has been handed over to others. When talking about the latter part, Wei Yongming''s tone was filled with sadness. Autonomous embedded operating system...based on linux? Chang Haonan can only understand the code aspect at best, and cannot understand anything that is too profound. However, judging from the subsequent historical development, Linux is definitely a good thing. By the 2020s, almost all embedded systems have been unified into There are two routes: win and linux. Speaking of the fields he is most familiar with, Wei Yongming suddenly became energetic again: "Not entirely. The current Linux as an embedded system has many flaws. The most insurmountable thing is that some industrial control equipment does not have a memory management unit installed, and Linux cannot run on these devices. In addition, some have MIPS or ARM architecture processing installed. The adaptability of computer equipment to Linux is not good, so our plan is to rely on the upcoming version 2.0 of Linux as the kernel source file to design a new system specifically for the micro-control field. " When he said this, Chang Haonan suddenly remembered why he was so familiar with the other person''s name. ? Wei Yongming, the developer of MiniGUI, Chinas first embedded operating system that supports graphical user interface. Many industrial control equipment, medical instruments and ToB terminals use this system. In his previous life, despite the lack of external support, he still completed the initial development of MiniGUI in 1998. Now relying on the platform of Seiko Project, it is obvious that he has great potential. Im not an expert in operating systems. ??Chang Haonan naturally couldn''t say what he was thinking, so he would become a great dance master. On the other hand, he also hoped to keep Wei Yongming within the framework of the Jinggong Plan instead of letting him go out to fight alone: "But if your new system can gain user approval in the two directions of micro-EDM and investment casting, then I am willing to incorporate it into the framework of the Seiko plan as a whole, so that the following plans will be involved Terminal equipment can choose to use your new system to circumvent the discriminatory policies of foreign manufacturers and possible sanctions. For an operating system, the importance of the software ecosystem is at least as important as the system itself. Take the desktop system for example. Before Chang Haonan was reborn, all the computers in their organization had been replaced by the domestically produced KylinOS from Windows. However, at the very beginning, a large number of software had not been adapted to Linux, so additional software was required. Bring a personal Windows computer to work properly. Chang Haonan has no influence on desktop matters now, but in the late 1990s, the domestic industrial control software industry was still in its infancy. If the Seiko Plan can guide top users to choose, or at least be compatible with domestic systems, it will be beneficial to the future development will be a big boost. Even the future hardware industry can do this! If this is really the case, I would like to thank you very much, Mr. Chang. ?Chang Haonans commitment is undoubtedly a shot in the arm for Wei Yongming. In fact, since he started paying attention to free software and Linux operating systems a few years ago, he has always had the idea of ??designing a new system based on them. However, he suffered from insufficient conditions and made slow progress until he participated in this project at the beginning of this year. Only then was a platform high enough to do this was obtained. In less than three months, he completed more content than the previous two years combined. This is just the support provided by two projects. If the entire Seiko Plan... ??Wei Yongming even dared not think about the situation at that time. The conversation with Wei Yongming once again strengthened Chang Haonan''s sense of urgency to promote multi-physics simulation research. The requirements for production and manufacturing capabilities of the August 3rd Project that he participated in before were not much higher than those of the JH-7 already in service and the old J-8 in the past. In other words, the main shortcoming of the wooden barrel was the design, so it could In a matter of months, a complete transformation was achieved very quickly. As the third-generation fighter jets, Project 10 and Project 11 are completely different. Their overall leading performance relies not only on advances in aerodynamic design and avionics, but also puts forward requirements for aircraft production that are much higher than in the past. Even without considering the long-term shortcomings of aviation power, these two models in the previous generation still relied on a considerable part of aviation materials and key components imported from abroad for a long time, so it was difficult to roll out production until the 2010s. Now, with the help of Chang Haonan, their finalization time must be much earlier than the original timeline. If they are still unable to be mass-produced due to manufacturing problems, then the significance of this advance will be greatly reduced. I still need to encourage Professor Liu... On the way back to the office, Chang Haonan thought for a while and found that compiling the textbook was the fastest way to gain a lot of theoretical experience. So it is true that we still have to take advantage of Liu Hongbo. ?This made him speed up his pace. ?However, before he could find Liu Hongbo, he was stopped by Du Yishan and two men in black suits at the entrance of the corridor. Hello, Comrade Chang Haonan. ?One of them stepped forward and took the initiative to shake hands with Chang Haonan. ??If Du Yishan wasn''t right next to him, and he was using honorifics when speaking, Chang Haonan would have thought that he had done something outrageous and was about to be punished... ?However, the development direction of things was completely opposite to what he thought... We are here to send you the award certificate and the invitation letter to the award ceremony. You need to sign to confirm receipt. "Award certificate?" What award? Chang Haonan looked at Du Yishan with a mysterious smile in the distance and asked in confusion - How come I dont know that I won the award? (End of this chapter) Chapter 300 Chinese Youth May 4th Award Chapter 300 Chinese Youth May 4th Medal (two in one) Chang Haonan briefly reviewed and found that almost half a month had passed since Du Yishan called him back from Donglai, but no one had clearly told him what the "ceremony" that he was asked to participate in was. . After working on it for a long time, it turned out to be an awards ceremony. It has been almost a year since his rebirth. Although he has made a lot of achievements and won a lot of honors from the aviation industry system and even the military, it is only the first time that such a serious ceremony needs to be held. twice. The first time was to celebrate the bat hunt. It is a coincidence that Chang Haonan was kept in the dark at that time. It was not until Ding Gaoheng was pulled to the scene that he learned the whole story. It seems to have become a tradition. Neither the two staff members nor Du Yishan answered Chang Haonan''s surprised question. Instead, they took him to Tang Lintian''s office and solemnly handed him a beautifully framed red envelope. Obviously, this is to leave the surprise of the lottery to the winner himself. There was no name of the award written on the surface of the envelope, but before opening it, Chang Haonan noticed that the organization that issued the envelope was printed in two lines of small characters in the lower right corner - Communist Youth League ZY and National Youth Federation. ?His hands shook involuntarily. In the eyes of many people, these two names may not have enough presence in daily life. But within the system, especially in government agencies and scientific research units, he still has quite a status. An award that allows these two companies to jointly issue... ?Chang Haonan already had some guesses in his mind. In the 1990s, envelopes did not have the quick-release design that is common in later generations, so he picked up a letter opener from Tang Lintian''s pen holder and quickly cut open the envelope. Inside is a red-covered certificate and an invitation letter. The certificate has the emblem of the Communist Youth League printed on it, as well as two lines of thin gilded fonts: Chinese Youth May 4th Medal Certificate The content in the certificate is concise and to the point. Awarded to Comrade Chang Haonan the Chinese Youth May 4th Medal There is no need for any other explanation, and there is no such clich as this certificate is issued as an encouragement. Not needed at all. Fifteen words are enough to reflect the value of this certificate. ??Even if we only look at the level of the issuing organization, the first-class "Bat Hunting Operation" medal he received before is not inferior. ??But this is a serious medal after all, and it is the kind that can be said openly. At this moment, the other four people in the office heard Chang Haonan''s suddenly heavier breathing. ?No one can remain completely calm at such a time. Dont talk about being a human being in two lifetimes. In his last life, he lived for more than forty years, and the highest honor he received was just being an outstanding researcher at the research institute level. The bosses are indifferent to honors, mostly because honors that are important to ordinary people are not worth mentioning to them. Why does the Nobel Prize have to be notified to me only a few minutes before the draw? ?One of the important reasons is to prevent the winner from showing off after knowing it in advance and destroying the authenticity of the Nobel Prize. In fact, before today, Chang Haonan did estimate that he might get some awards for his contribution to many projects last year, but at best he would think about it within the aviation industry system, and at most the Commission of Science, Technology and Industry for National Defense system. It is indeed a bit of an unexpected surprise to rush directly to the specification of the May 4th Medal. You should know that 1997 was the first time this award was awarded. ??Although there is no rule that the first winner is more noble than the subsequent ones, from a historical perspective, the name of the first winner is still more valuable. ?Compared to the huge scale of 20 or 30 people later, the number of winners in previous years was usually only five or six. ?However, Chang Haonan has rich life experience after all. After the initial surprise and excitement, he quickly took two deep breaths to calm himself down a little, and then raised his head. Thank you both for coming here. I remember just now that you said there was something I needed to sign? "That''s right, there is a receipt at the back of the invitation letter. Just sign it and give it to us after confirming whether you can attend. If you attend, it is best to arrive at the venue about two hours in advance. There will be staff to guide you to the backstage. Get in position." "no problem." Chang Haonan turned the invitation letter to the end, checked the "confirm participation" option, and then signed his name. Just kidding, Du Yishan called him back specially for this matter, how could he have no reason not to participate. After signing, the two staff members who came to announce the good news were quickly sent away. ?Chang Haonan put the certificate and invitation letter back into the envelope and carefully put them into his bag. How about it? I didnt owe you anything by calling you back this time, right? ? Judging from the demeanor of old man Du Yishan, he obviously knew about it early on, but he just wanted to leave a surprise for Chang Haonan, so he didn''t explain it. Tang Lintian probably subconsciously felt that Du Yishan must have said it before, so he played riddles with the latter for a long time. ?In this way, it is not difficult to understand why Chang Haonan behaved like that when he saw Tang Lintian for the first time after returning. The first May Fourth Medal did not have a collective award. Hence, the unit where the award-winning individual belongs is also an important focus. ??If Chang Haonan can say a few more good words for the school when delivering his acceptance speech, even if it does not bring any direct benefits, at least it can leave a good first impression on all participants. I really didnt expect it before... When I saw those two people in black clothes at the entrance of the corridor just now, I thought I had made some mistake... I was shocked. Chang Haonan zipped up his schoolbag and touched his chest, which was still beating fast, and replied. ?Although there was a bit of fright in the process, I have to say that the more frights there are, the better. Du Yishan showed a smile of success and patted Chang Haonan on the shoulder: "Okay, I''ll prepare my acceptance speech after I get back. But what I said above is that the commendation conference is still based on showing the vitality of you young people, so there is no need to be too serious. At this level...just control yourself. " Although that is said, according to the meeting schedule, the total time left for their winners to speak is only 20 minutes, which translates into less than 4 minutes for each person. In fact, there is not much room for performance. It was not until after sending Chang Haonan away that Du Yishan noticed Tang Lintian sitting behind the desk next to him with a frown on his face. Old Tang? It wasnt until his name was called several times that the latter finally reacted. "What are you thinking about? I see your eyebrows are all squeezed together." While talking, Du Yishan walked to a filing cabinet nearby, fumbled for a while, and took out a silver jar from an inconspicuous little grid in the lower right corner. ??It was the precious tea that Tang Lintian brought out to treat Chang Haonan that day. Im thinking, if this trend continues, when Dr. Xiao Chang graduates in two years, what conditions will we have to offer to keep people... Well...theres nothing I can do about it. ?Du Yishan grabbed some tea leaves into two glasses, then picked up the thermos and started making tea. At the same time, he admitted very simply that there was nothing he could do: "But as far as Xiao Chang''s situation is concerned, I still suggest that you expand your structure a little bit. His value is not limited to our school at all. If you are willing to stay, that would be better. If there is a better platform or place to go, , then I think we should also encourage and support. Of course I know this, but...well, I wonder if you have heard some rumors that the higher authorities are planning to build a number of world-leading first-class universities around the turn of the century? Du Yishan was stunned for a moment, then shook his head: "This is the first time I heard about it. Isn''t there already a 211 project?" As a senior academician, he does not pay special attention to school administration matters, so naturally he has not learned about this matter that has not been announced yet. "It''s different. The standards this time are much higher. According to relatively reliable reports, the current leading schools are Qinghua University, Yanda University, Fudan University, Jiaotong University and Zhejiang University. In the future, four to five more schools may be added as the first batch of schools. , our Beijing Airlines is still a little behind them in terms of strength and influence, judging from the current situation, but if Xiao Chang can be sure to stay at the school to teach..." "etc" Du Yishan, who was listening next to him, interrupted Tang Lintians explanation: Forget everything else, Zhejiang University... we dont seem to be far behind them, right? Arent they all science and engineering universities? Its pretty much the same now. ?Tang Lintian shook his head helplessly: But their application for the merger of the four universities has been approved. Next year, or the year after at the latest, you will be able to see the old Zhejiang University ?Du Yishan was speechless. As a person born in the 1920s, he certainly knows the ins and outs of this. In 1952, Zhejiang University was split into five in an extremely tragic split. In addition to being divided into four single-discipline universities, it also transferred its trump card mathematics major to Fudan. The loss was second only to that of the school next door. Jinling University. ? And if the current four schools can really be merged into one, there will be no doubt about their competitiveness. ?But thinking of this, a strange idea suddenly came to Du Yishan''s mind: For this new first-class university project, Zhejiang University merged its three separate schools. ??As for Beijing Airlines, the first thing that came to mind was to keep Chang Haonan as a teacher... So in other words, the value of Xiao Chang is probably equal to Zhejiang Agricultural University, Zhejiang Medical University and Hangcheng University combined? ThatI didnt say that. Tang Lintian said as he picked up the cup in front of him and took a sip of tea. This tastes It was then that he saw the tin can he thought he had hidden in Du Yishan''s hand, and his eyes widened instantly: Xiao Chang, did you even tell you where I put the tea? Dont blame others blindly. ?Du Yishan skillfully put the tea can back into place: "You wish the whole college knew about this place, but others don''t dare to take it out casually." The next night, a special car took Chang Haonan directly from Beijing Airlines to the Great Hall. In his last life, he had been here a lot. In fact, this place can be rented for money when there are no major events, and many halls are also open to the public. But this time being invited as a winner, the feeling is naturally completely different. ?The person in charge of receiving Chang Haonan is a female staff member named Hu Shanshan, who is about 30 years old, has short hair, and is very capable. After getting to know each other briefly, Hu Shanshan took Chang Haonan to the backstage of the auditorium with tens of thousands of people. The first thing I did after arriving was... make up. There is no way. In terms of the brightness of the stage spotlights, the effect of going on stage without makeup in videos and photos is similar to that of black people... Just when Chang Haonan was helplessly enduring the makeup artist applying some strange things to his face, Hu Shanshans voice came to his ears again: If you need it, we can type your acceptance speech onto a teleprompter, but you have to prepare the manuscript for us in advance. ?However, this was Chang Haonan''s first time facing such a situation. He didn''t think about the teleprompter at all, so he didn''t bring any manuscript with him. Forget it, its only six to seven hundred words. If you remember, the total time you arranged to speak is only three and a half minutes, so you cant say much. No wonder those two people asked him to arrive at the venue two hours early yesterday. The makeup process alone took almost an hour. ?Chang Haonan felt that his whole face had become a lot heavier, and he didn''t even dare to make big expressions. In the end, it was under Hu Shanshan''s guidance that he slowly got used to wearing makeup. After getting the clothes ready and getting familiar with the process of the whole ceremony, its time to officially start. ?Two hosts, one male and one female, took the stage and announced the start of the award ceremony. For Chang Haonan, this is a childhood memory coming true. At the time of his rebirth, one of the two people had long since died, and the other had retired and only appeared once a year when he moved China. Since this is the first award, after introducing the leaders present, the host also emphasized the significance of establishing the Chinese Youth May 4th Medal. "The purpose of establishing the "China Youth May 4th Medal" series of awards is to establish and publicize advanced models of contemporary youth, guide and inspire young people to actively participate in reform, opening up and socialist modernization, and achieve new progress in the "three-step" development strategy of modernization , make achievements and grow healthily in the great practice of new victory..." Let me announce the list of winners of the first Chinese Youth May 4th Medal "The position of loving the army and practicing martial arts is sacred, and serving the motherland is extremely honorable. He gave up his status as a national cadre with a salary of several hundred yuan, and chose to join the army as a college graduate, becoming a soldier with a monthly allowance of only a few dozen yuan. Inheriting the tradition of the "Good Eighth Company" and continuing to write a new chapter for the glorious company, we invite you, the squad leader of the Eighth Company of the Special Guard Regiment of the Shanghai Military District of Jinling Military Region, to be promoted to the East!" "When she was young, she held up a sky for the children in the mountains. From a 4-and-a-half-year-old toddler to a 13-year-old boy, from life to study, she worked as both a teacher and a childcare worker... The second winner, Houhe, WFTJZ Autonomous County Substitute teacher at Xiangdingping Single Teaching Point, Song Fangrong! The third winner, Liu Xiao! The fourth winner, Li Bin! The drill bit gnaws at the rock. The work object is hard, and the work spirit must also be hard. This is the spirit of the people in Qingtang Oilfield, and also the spirit of Huaxia Petroleum people Qin Wengui, senior engineer of Qingtang Petroleum Administration Bureau! Since Chang Haonan''s surname has as many as 11 strokes, he is the last one to appear in most ceremonies that do not have a ranking order. He has gotten used to it, and he can better hear the deeds of the five people in front of him in the background. I have to say, they are all very impressive. ?For example, in front of him is Qin Wengui. ??When Chang Haonan first saw this white-haired man who looked about the same age as Du Yishan, he thought there was something wrong with his definition of "youth". It took the makeup artist a long time to dye his hair into a younger-looking black. ?As a result, after hearing his story, I found out that the other person was just 38 years old this year. ?This shows how difficult the working conditions of oilmen in the Gobi Desert are. After reading Qin Wenguis deeds, it was naturally Chang Haonans turn. He thought that he would be able to face all this calmly today since he was mentally prepared. ??But when the female hosts solemn voice sounded, Chang Haonan still couldnt help but pull the tie around his neck The rapid breathing made him feel a little hypoxic. Next, is the youngest of our winners this time. "Airplanes once changed the entire world, and he is determined to change airplanes. With his young hands and mind, he will equip Chinese aircraft with Chinese wings. One day, your name will be along with the tracks made by China. Flying all over the seven continents and four oceans..." Let us welcome the sixth winner, Chang Haonan, a student from Beijing University of Aeronautics and Astronautics! (End of this chapter) Chapter 301 Then say something (2-in-1) Chapter 301 Lets say something (two in one) ?Like previous times, the reasons for the award given to Chang Haonan are mainly focused on three aspects: MA-60 project, aircraft anti-icing system design and control theory research. The former is a project that he has always claimed to be involved in, while the results of the latter two have even had a lot of international influence. ?This way, there is no need to reveal his true contribution to the military industry, and the award will not become too obtrusive. Of course, being able to do this kind of work is mainly due to the fact that Chang Haonan has completed so much work this year that he can pick out some of them that do not need to be kept secret and still be able to hold up various honors. Although after the signing of the package agreement between China and Europe, he has been busy with work related to electronic warfare pods and electronic warfare aircraft, and has not been deeply involved in subsequent relatively complicated and mundane administrative work. However, from the Commission of Science, Technology and Industry for National Defense It is not difficult to know the general progress of the project from the few words passed down. More importantly, due to the cooperation between China and Europe, the merger of Boeing and McDonnell Douglas has still not made substantial progress nearly five months after it was announced. Boeing''s stock price was raised due to this news at the beginning of this year. As a result, it has gradually declined, and is even about to return to the state at the beginning of December last year. ?This is definitely not good news for Boeing CEO Phil Condit, who carries the stock price KPI. It is also very uncomfortable for McDonnell Douglas, which is already half-dead and in urgent need of Boeing funds to save its life, to continue to drag on. Judging from the response from Hufei, many McDonnell Douglas staff have already been unable to receive their salaries in full. The Commission of Science, Technology and Industry for National Defense has also organized efforts to take advantage of this last opportunity to retain as much MD90-related technical information as possible. Although there is a high probability that this project will not be able to continue, as a mainline passenger aircraft with a take-off weight of more than 70 tons, which is equivalent to the mainstream level in the 1990s, there are still many technical details worthy of China''s current study and study. The curtain on the side of the stage slowly opened, and Chang Haonan emerged from the darkness and walked slowly under the spotlight in front of the stage. Although the name of this award contains "youth", according to the generally accepted international definition, anyone under the age of 40 can be included in the category of youth, so the other winners are basically in their 30s. Even though the audience had already received a copy of the winners deeds before the opening ceremony, they still had an unreal feeling when they saw Chang Haonan on stage. When he appeared on the scene in his early twenties, he even made the other people look a little less like "youth". ? Another winner, Song Fangrong, is only 24 years old, but due to the difficult working environment, she looks much more mature than the 22-year-old Chang Haonan. What''s more, when the list was read out, Chang Haonan''s title was actually student. ??The tone set from the very beginning for this award was to be a stage for young people, so everyones positions are relatively ordinary. Engineers, substitute teachers, technicians, monitors But "student" is still somewhat eye-catching here. In other words, the achievements that the host just read on stage were actually achieved before he entered society... The organizers have obviously taken this feeling of the audience into consideration. Or rather, they intensify this feeling specifically for the audience. Because when Chang Haonan appeared on the stage, the slogan "A strong young man will make a strong country" was directly displayed on a screen in the background, and he was immediately relegated to the youth category... There was thunderous applause in the venue, accompanied by the music melody of the "Road to Success" symphony. But he could still clearly hear the heartbeat coming from his chest. From the beginning of the rapid, then slowly and gradually. When Chang Haonan walked to the center of the stage, his heart felt peaceful. Following this was a brief speech from each person. ?Chang Haonan also understood why the time for this link should be compressed to a total of about twenty minutes. Because the educational levels and expressive abilities of the winners vary, it is unrealistic for everyone to give a long speech of more than ten minutes on stage, even with a teleprompter. So much so that when we arrived at Chang Haonan''s place, the time was actually a few minutes longer than expected. Maybe it was an emergency response, or maybe it was a small surprise specially arranged for him, the youngest winner. In short, after he finished his usual thank you and left the podium to wait to receive the award, the host asked him many questions. asked a question. "When the list of winners was just announced, I noticed that many comrades in the audience were surprised by your age, especially many comrades with children at home. They must want to know how you grew up. Can you tell us about it? What about this process? In fact, it can be seen from the style of the Spring Festival Gala that the style of such ceremonies in the 1990s was relatively relaxed and even unorganized. What''s more, today''s commendation meeting was not broadcast live, so adding a question temporarily was not considered. No big deal. There is no standard answer to this kind of question, as long as it does not make a general mistake. So Chang Haonan calmed down and picked up the microphone that had been placed on the stage again. When I was in high school, my ideal was to become a pilot. Unfortunately, although I passed the physical test during the recruitment, I was rejected during the reexamination because of a minor dental problem. In the end, I had no choice but to take part in the unified college entrance examination, and thats when I came to Beijing Airlines Since it is a youth honor awarded by the Communist Youth League, many schools in Beijing sent student representatives to attend tonights award ceremony. ?Chang Haonan''s words will undoubtedly leave a very deep impression on them. At the beginning, I had no interest in scientific research... ?Chang Haonan basically told the truth about his life experience since college, except for his rebirth. In fact, he was a person who studied very hard, but in the previous timeline, his talent was the limit. So even if the middle part is omitted, it doesn''t seem abrupt. In the eyes of others, it is nothing more than a story about a young genius who has accumulated a lot of experience. ?Of course, speaking on such occasions is not just for show-off. Lets talk about what China lacked most in the mid-to-late 1990s. Apart from money, its probably confidence. And there is a systemic lack of confidence. In this era, even the most determined and optimistic person in this era cannot possibly compare to Chang Haonan who came back from more than 20 years later. ??So he changed the topic and suddenly talked about the excitement that the conflict brought to him early last year. Like all of you, I was angry, but anger means nothing. So I began to wonder if I could do something of practical value. At that time, the school had an aircraft design course. "That was my first real contact with a complete aircraft design project. Although the completion was still rough due to time constraints, it made me realize that I still seem to have a little talent in the field of engineering design... " His modification of the J-7 in his big assignment is known to everyone in the grade and even the entire major, and of course it can be talked about. "I am very grateful to Beijing Hang University and my mentor, Academician Du Yishan, for giving me the opportunity to participate in the Xinzhou 60 project. In this project, I completed a project that was judged to be impossible by foreign experts. It was also at that moment that I Suddenly I had a bold idea, that is, our Chinese aviation industry does not have to follow others, but can create something that others do not have..." I was lucky, and I soon encountered such an opportunity. By coincidence, our wing anti-icing theory was recognized by the European Joint Aviation Administration..." Chang Haonan''s speech began to time out halfway through his speech, but the host received a request from the backstage - don''t control the time, let him continue speaking! ?The audience in the audience did not show any signs of being distracted or impatient, but listened attentively. Listening to Chang Haonan''s calm tone, he spoke about one item of heart-stirring content. "..."?????"Finally, what I want to say is that people''s abilities may vary, but their attitudes and responsibilities do not. When a person chooses to shoulder his responsibilities and do his part, no matter what, he will be You can be called a hero in your own world! When these last words fell, the applause in the venue was several times louder than when he took the stage. ?Moreover, it lasts for a long time. ??Chang Haonan''s words are by no means an unfounded expression of sorrow for spring and autumn, but an inner reflection from looking back on his own two life experiences. A rebirth has changed a lot of things. But he has not changed the direction he chose. ?This sentence is not only addressed to the audience in the audience, but also to Chang Haonan himself in the previous life. Then, of course, the awards were given. Because certificates have been sent to the six winners in advance, only one medal needs to be awarded today. On the ceremonial staff''s tray, there is an exquisite mahogany box. The medal is golden, with a half circle of wheat ears on the lower half and five five-pointed stars engraved on the top. The middle pattern shows two people, each with one hand, holding a torch together. ? Symbolizes the fire and fire, endless life. The leader of the regiment who presented the award took out the medal with his own hands and put it on Chang Haonan''s chest. Another very familiar person. The speech I just made was very good. The other party shook hands with Chang Haonan. Looking forward to you bringing us more surprises, Comrade Chang Haonan. After the ceremony, there will naturally be other celebration activities for the winners. That is, a dinner party. ?So after returning to the backstage to take off their makeup, they couldnt just leave right away. "When I saw Comrade Chang Haonan for the first time, I was really shocked. He looked too young. I thought everyone would be about the same age this time. But it turned out great. I was better than him and Comrade Song Fangrong. Its more than one round. ?Qin Wengui, who was sitting on the sofa in the lounge, looked at Chang Haonan and couldn''t help feeling a little emotional. Yes, he is still a student. When I see him, it reminds me of the time when I was in college... We are all old. Gong Judong, who was wearing military uniform, could hardly relax. If you really want to say that, then I am actually a student now. Dont count me among the old people. As the only female among the winners, Song Fangrong''s makeup removal was more complicated than the others, so she still lay next to her, but she still said it in a half-joking tone. She has been studying for an adult undergraduate degree at the Hubei Provincial College of Education for the past two years, so she said this. ?Of course, its just a joke. Everyone knows that the student status of two people is not the same concept. Chang Haonan, who was slapped with rainbow farts by several people, quickly waved his hand: Dont say that. I come from a family of intellectuals and Im just lucky. If I really want to talk about my spirit, I still have to learn from you. ?This is absolutely true. His working conditions are simply not much better than those of several others. Especially Qin Wengui and Song Fangrong. Comrade Chang Haonans name has been very popular in our industry for a while. Before today, I always thought he was an old professor or an old technician. ??The person who spoke this time was another winner, Li Bin, who was in his 40s. He was born as a technician and was relatively inarticulate. His previous acceptance speech had taken the shortest time. You dont work at the Shanghai Hydraulic Pump Factory, so how can you still be connected with the aviation system? Qin Wengui, who is also an engineer at a state-owned enterprise, was a little surprised by this. Comrade Chang Haonan has served as a consultant for several projects our factory has participated in. The application of the new process he developed has solved many problems that we have been worrying about for several years. What Li Bin is talking about should be the soft abrasive processing technology developed by Chang Haonan to solve the problem of polishing the air film hole of the turbojet 14B engine blade. ?In the past half year, this technology has been promoted to the first batch of factories participating in the Seiko Plan for process inspection. Judging from Li Bins feedback, the effect should be good. "Then you have to hurry up. The industrial pumps used in our oil fields are almost all Rexroth, Ebara, Wilo, Kawasaki...all imported. It would be great if I could replace these brands with those from your factory before I retire..." ?? Qin Wengui had also washed off the temporary hair dye he had just used, and returned to his gray-haired state. Even though its not the first time Ive seen it, this look is still quite shocking compared to the others. It is hard to imagine what he has experienced in Qingtang these years. We will try our best. Li Bin nodded, and then as if he suddenly remembered something, he turned to Song Fangrong who had just finished removing her makeup and asked: By the way, Comrade Xiao Song, is there any age limit for the adult undergraduate program you just mentioned? My classmates are generally about the same age as me, but there is no clear limit on how old they cannot be. Song Fangrong was stunned for a moment when she was suddenly called, and replied while wiping her face: Are you going to study too? Yes, I recently took over the soft abrasive process developed by Comrade Chang Haonan. The things inside are much more complicated than before. It is a bit difficult for me to accept it at my current level..." ?Chang Haonan did not interrupt during the whole process, but quietly listened to the conversation of several other people. More and more people are changing their life trajectories because of him. (End of this chapter) Chapter 302 There is no way to keep a low profile (2-in-1) Chapter 302: No way to keep a low profile (two-in-one) The dinner party exceeded almost everyones expectations. ?Nearly all of the people whose names I often heard on the news network appeared. ?Of course, Chang Haonan, who already knew this period of history, was not very surprised by this. ?Due to various complex historical and practical reasons, although China in the early days of the founding of the People''s Republic of China followed the Soviet Union in many aspects, it did not establish a complete and rigorous merit system like the latter. Not even an army, let alone ordinary citizens. Except for the three major medals awarded in 1955the August 1st Medal, the Medal of Independence and Freedom, and the Medal of LiberationChina had never officially established any medals until 2011 in the previous life. ?For a long time, the only merits awarded in an institutional and standardized manner were first-, second- and third-class merit medals issued within the military and police systems. ?Subject to jurisdictional issues, it is impossible for non-military and police officers to obtain credit even if they have great achievements. ??You can only use other methods to hit the sidelines. ?That''s when Chang Haonan got the somewhat weird first-class "Bat Hunting Operation" commemorative medal. According to regulations, first-class merit is an honorary title. However, the awarding of honorary titles is also not systematic, and an exclusive title is often customized based on the recipient''s deeds. In a good way, this can be regarded as a privilege. But at the operational level, it will actually cause a lot of trouble. For example, there is no way to intuitively reflect the matter of receiving an honorary title. You cant carry your certificate with you wherever you go. For another example, if a person obtains two honorary titles, there is no provision stipulating which of them comes first and who comes last. In principle, there is no distinction between high and low honorary titles. ??However, both in perception and in reality, there is obviously still a gap between the "Patriotic Army Elite Model" and the "Volunteer Army First-Class Hero", which are both honorary titles. As for honors outside the military and police system, it is even more confusing. Some award-winning organizations even only issue awards without keeping records, resulting in many honors that sound noble but actually have no value at all. ?This has caused a psychological gap for the winners themselves. Whats more terrible is that it has spawned many criminals who take advantage of this loophole to commit fraud. ?In an era of insufficient information, leaving a province is similar to going abroad. I said in Province A that I was the recipient of the **** honor in Province B, and there was no way to check it. ?This situation lasted until the late 1980s, when it finally began to change. The All-China Federation of Trade Unions has established the first medal that is systematically awarded to all citizensthe National May Day Labor Medal. It also stipulates that among the winners, the proportion of front-line grassroots workers cannot be less than one-third. The Chinese Youth May 4th Medal that Chang Haonan and the others received was the second one. ?In this special period when people''s minds are changing, launching a standardized national merit system will undoubtedly be conducive to ideological and spiritual construction. In particular, youth is a top priority. Therefore, this first May Fourth Medal awarding ceremony must be grand and far beyond the standard. ?Hence, not only were the leaders in attendance astonishing, but also the media who came with them were all well-known. Obviously, this matter will receive unprecedented publicity. In short, when the entire celebration was over and Chang Haonan returned home, it was already close to midnight that day. He looked at the certificates and medals on the table, took out his mobile phone and entered a series of phone numbers. This is Chang Haonan''s personal habit. He will not open champagne at halftime until everything is finally settled. Now that the ceremony has been completed, it is natural to inform the family of the good news. ??But looking at the time displayed in the upper right corner of the phone screen, he hesitated and still did not press the dial button. Its too late, well talk about it tomorrow. After several hours of excitement, as soon as you relax, the first thing that comes over you is naturally exhaustion. In addition, he didnt have a good rest last night because he had to prepare his acceptance speech and familiarize himself with the ceremony process, so Chang Haonan just changed his clothes and lay down on the bed to sleep. At this time in 1997, even wired networks were not yet popular in China, and mobile networks were a thing whose concept was not very clear. Therefore, it would not be like in the future. After the ceremony here, the media over there would immediately release the online version of the news and put it on the Internet. Hot search. At this time, Huaxia TV had just completed a major equipment upgrade and replacement. It was in the process of switching from recorded news to live news, and its response speed was also not that fast. Generally speaking, newspapers and radio are the fastest responders to news. Therefore, the next morning, when Zhou Li, who was far away in Liucheng, was the first to arrive at the office, she simply cleaned her work station, poured hot water and habitually threw a few newspapers inserted on the door handle on the table. , the whole person was stunned instantly. She accidentally caught a glimpse of the headline of one of the newspapers: The All-China Youth Federation of the Communist Youth League of China decided to award six young people the Chinese Youth May 4th Medal for the first time ?Of course, if it were just like this, it wouldn''t make Zhou Li lose her composure. But there is a line of slightly smaller words below the large and conspicuous title ?Chang Hao, Nan Qin Wengui, Li Bin, Liu Xiaogong, and Fangrong of the Eastern Song Dynasty won the honor. In the officially released news, the order of the names of the six people was changed. It is no longer in the order of the strokes of the surname, but in the order of the medals received. What Chang Haonan got was the No. 1 May 4th Medal. So it is ranked first. Zhou Li put the cup on the table, took out her glasses from her bag, put them on, and checked again. ??This name at the top of the list...why does it feel a bit familiar? Oh, it seems that my sons name is Chang Haonan... The news is accompanied by photos of the winners. But because it is a black and white photo printed with ink, I can only say... It can be seen that they are six humanoid creatures. ?However, from the body shape, Zhou Li felt that the man standing in front of a twin-engine propeller plane in the first photo seemed to be her son. Then she glanced at the text again. Chang Haonan, male, born in 1976, from Liucheng, Liaoning Province, student at Beijing University of Aeronautics and Astronautics Obviously, everything is correct. The huge surprise made Zhou Li feel dizzy, and she sat down directly on the chair. A few seconds later, not believing her eyes, she pulled out a few more newspapers from underneath. "Guangming Daily" Same news, front page headlines. "China Youth Daily" Same news, on the upper right side of the front page, one of the double headlines. "Reference News" ??Still the same news, still the front page headlines Obviously, she was not hallucinating. After the huge surprise, Zhou Li felt calm instead. Even a little panicked. ?Since she was very young, Chang Haonan has always been very competitive, which is the pride of both her and Chang Yuanchao. ?But this time, I was a little too ambitious. Zhou Li doesnt know yet what level this Chinese Youth May 4th Medal is. But it is obviously not an ordinary thing for all newspapers to report it with front-page headlines. She subconsciously wanted to contact Chang Haonan directly to confirm the matter and send congratulations, but for a moment she didnt know how to express it... As time passed by, the previously deserted campus gradually became lively. ?Zhou Li decided to take a few classes today first. Chang Haonan''s achievements are mainly due to his own efforts. As a parent, the help he can provide after his children go to college is really limited. ?She secretly warned herself that at this time, she must not get carried away. As the mother of a person who has been on the front pages of major newspapers, I still have to be more reserved. Otherwise, you will be embarrassing your son. ?However, there are some things that she can''t just keep a low profile if she wants to... ??A colleague who almost arrived at work on time and was almost late came in and mentioned this matter to Zhou Li who was busy preparing lessons: Teacher Zhou, on the way to work today, I listened to the radio and said that there was a big prize given out yesterday, and there was a winner with the same name as your son... ??Chang Haonan, as an outstanding graduate four years ago, still retains some popularity in the school. ?The other party''s words instantly drew all the attention in the office to Zhou Li. Teacher Zhous son? I remember your name is Chang Haonan? He was admitted to Beijing Airlines from our school, right? Soon someone noticed the pile of newspapers that almost no one was interested in. The headline on the front page of todays newspaper seems to be the same thing... The Chinese Youth May 4th Medal seems to be a very high-end award. Let me seeits really called Chang Haonan At this point, Zhou Li had no choice but to raise her head, take a deep breath, and then replied in the same tone as usual: It is indeed the same as my sons name. Thats him. ?Zhou Li''s answer instantly silenced the noisy office just now. Including the colleague who first mentioned this matter just now, everyone looked at her with almost simultaneous expressions of astonishment. ??The former was just looking for a topic to chat about, and he never thought that Chang Haonan in the news was actually Zhou Li''s son. After all, when you listen to the radio on the way to work, you naturally dont listen very seriously. Not to mention the other people who were just joining in the fun. ?Each office has only one copy of the newspaper ordered by the work unit, and no one will read it at all. Only the first person who comes to work will take a glance at it when he takes it off. So for a moment, everyone even thought that Zhou Li was playing along with their joke. ?However, at this moment, the office door was pushed open violently, and a lean, panting middle-aged man in a suit appeared at the door. Its their principal, Jiang Zhichao. Principal Jiang? Someone shouted. ??Jiang Zhichao took a few breaths and walked up to Zhou Li in three steps at a time: Teacher Zhou, Comrade Zhou Li, and classmate Chang Haonan received the May 4th Medal. Why didnt you tell your work unit about such a big happy event..." OK, now there is no need to doubt it. It must be true. After all, Zhou Lis name has been changed to you... As a principal, Jiang Zhichao is quite satisfactory, neither good nor bad. In the six or seven years since he took over as principal, although the school has been steadily declining, anyone with a discerning eye knows that this is a problem caused by the general environment and has little to do with any individual. ?The only thing worth mentioning is that this person prefers to flatter others, but generally speaking, this has nothing to do with ordinary teachers in the school. Its just that todays situation is obviously unusual. Because the person he was trying to flirt with became Zhou Li... Everyone''s expressions instantly switched to shock. ?Of course, there is also envy. After all, those who are still working as ordinary teachers at their age, no matter how high their professional titles are, have basically reached the end of their career. Therefore, most of their thoughts and expectations are placed on the next generation. ?Although I dont usually compete openly with my children, a little bit of comparison is still unavoidable. It''s just that this time, Zhou Li''s next generation is really a bit foul... After a short pause, Jiang Zhichao continued: Well, you see, I am not qualified as a principal. It wasnt until Director Shen of the Education Bureau called my office that I found out that our school had such an alumnus with a long history... Uh,...Principal Jiang, I actually only found out about this matter after reading the newspaper in the morning. Xiaonan didnt notify me either. I guess he is still resting and didnt have time to contact us..." Facing Jiang Zhichao with a smile on his face, Zhou Li didn''t do anything special. She has a clear understanding of herself. Even after seeing the report that her son won the award, she has never thought that mother is more valuable than son. But this obviously did not trouble Jiang Zhichao, and he immediately changed his perspective: He is neither arrogant nor impetuous in the face of honors. He is worthy of being a son trained by Teacher Zhou..." In short, after a series of rainbow farts, Principal Jiang finally expressed his intention: Teacher Zhou, I remember... Xiao Chang should graduate from undergraduate degree this year? Unconsciously, even the name Chang Haonan was changed. Thats right, but he has already passed the selection process for postgraduate students who are exempt from the examination and will continue to study for postgraduate studies in the second half of the year. ?Zhou Li''s inadvertent answer stabbed the hearts of all her colleagues in the office. ?Those who have older children can only shake their heads helplessly and wonder why other peoples children can be so defiant. As for those whose children are younger and have not yet taken the college entrance examination, they are already thinking about how to learn from Zhou Li. ?However, Jiang Zhichaos focus is not here: "What I mean is that the summer vacation for the graduating class should be much longer than usual. If your Xiaonan is free during the summer vacation, I wonder if you can let him go back to school and give a message to the juniors?" Hearing this request, to be honest, Zhou Li was moved. As a mother, when her child has achieved such a proud achievement, she naturally hopes that he can return home in fine clothes and make the whole family look good. ?However, her reason still prevented her from nodding directly, but slowed down her hand: "This... I can convey this to him for you, but Xiaonan is an adult after all, and he is also very busy outside. Even during the Chinese New Year this year, he only stayed at home for less than a week, so I can''t make this decision for him. ?This impeccable answer made Jiang Zhichao unable to continue to dwell on this topic, so he had to change the subject: Thats fine. The school also wants to respect Xiao Changs own opinions. But Teacher Zhou, theres one more thing. Director Shen of the Education Bureau will come in person to deliver the good news later, so I would like to see... can you link up the morning class with other teachers? ?This request was reasonable, and a math teacher next to me volunteered to take over the two free classes in the morning. Looking at Zhou Li and Jiang Zhichao leaving, a teacher who was about the same age as the former sighed with emotion: It would be great if my son could be as successful as Mr. Zhous son... Mr. Zhou, you have a good way to teach your children... This is not what I admire most about Teacher Zhou. ?Another slightly younger teacher sitting in the corner followed and said: If you were put in Teacher Zhous position today, when Principal Jiang asked the children to come back to speak, would you be able to hold back from nodding like she did? A question made the entire office fall into silence again. ?After a while, someone sighed again: Teacher Zhou, you have a good way of teaching your children... Thanks to the book friend [who is just a runner] for the leader who rewarded me. Its just that the end of this month is really busy, so the update will be completed next month! (End of this chapter) Chapter 303 Youthful (2-in-1) Chapter 303 Youthful Spirit (two in one) When Chang Haonan woke up from his sleep, it was already the afternoon of the same day. There is no other way. Participating in such a large-scale ceremony is more tiring than staying up all night in the computer room for a week. Furthermore, after rebirth, while acquiring the system, he seemed to have a sleep time storage function activated. Able to sleep for long periods of time at a time and then use very little sleep to maintain energy over the next few days. ?Or the other way around, you can take out a loan first and then repay the debt. Having magical skills as a worker belongs to this category. In short, after looking at his watch, Chang Haonan was not particularly surprised that he slept for more than ten hours at a time. Yesterday, because it was already late at night when I got home, I didn''t call home. Therefore, after washing briefly, the first thing Chang Haonan did was to pick up his mobile phone and prepare to dial. After unlocking it, I discovered that there were already many missed calls on it. Thats not surprising, after all, most of the day has passed. ?Chang Haonan briefly looked through the call records. In addition to the expected calls from Du Yishan and Tang Lintian, there were also several unfamiliar numbers. Have been beaten more than once. At this time in 1997, the SMS service had not yet been launched in China, so the mobile phone was really just a mobile phone. If the call could not be made... ?Then it wont be possible to get through. ?You can only wait for the other party to see it and reply. Considering that it was still almost time to get off work, there was a high probability that no one would answer even if he called home, so he called Du Yishan back first. The subject of the latter''s call was very simple. One was to express formal congratulations to him, and the other was to praise his performance last night. Xiao Chang, your speech last night, when you answered the hosts question and ended up running out of time, really touched everyones heart! ?Du Yishans tone was filled with rare excitement: "Many media came to the school today and wanted to publish the full text of your speech yesterday. I told them that the part where you answered questions was added temporarily, so there was no speech. The first reaction of those reporters was Do not believe" "This is normal. After all, you are only 22 years old this year, and you have already achieved more than many people have achieved in their lifetime. However, when you gave your acceptance speech, your words were very mature. If we didn''t know the inside story, we would have thought that you were being punished. What kind of advice from an expert..." ?Chang Haonans first reaction was surprise. The main reason is that the entry point chosen by these media is indeed unique. ?But it makes sense if you think about it carefully. As Du Yishan said, Chang Haonan in this timeline has only lived for 22 years. Making such a high-profile statement is indeed inconsistent with his seemingly high-speed and unparalleled resume. ?Such a contrast between youth and maturity will naturally attract the attention of many people. It was obviously impossible for Chang Haonan to truthfully explain that the passage was actually addressed to himself in his previous life, so he could only pass it on in a vague way: "It''s nothing, just some personal reflections. If the school needs it, I can sort it out..." After all, he had studied at Beijing Airlines for two lifetimes, and he still had feelings for the school, so he didn''t mind helping out if he could do something like this. "Then there''s no need for you to go to the trouble again. The organizers of CCTV will naturally release records of this kind of thing, but it will be a little slower. I''m afraid this report on the May 4th Medal will last at least a week. , not in a hurry. Continuous coverage for a week? Chang Haonan had just opened the refrigerator door and was about to take out a few eggs to make tomato scrambled eggs when he stopped what he was doing. "Yes, starting from today, there will be a three-minute special section in the Xinwen Network that will last for seven days. There will be a general report tonight. The content in the next six days will correspond to the personal deeds of your six winners. Du Yishan said cheerfully: "Of course, all the submitted materials related to your work in the past year have been screened by the school and the Science and Technology Commission, and the scope is strictly controlled to the parts that will not be leaked after being made public. In addition, I I have asked the publicity department to send you a copy after the draft is completed, and you will review it again and make sure it is OK before it will be officially released. " ?The battle was huge, but considering the weight of the May 4th medal, it was worth it. In this era, there is too little guidance in the right direction. As for the content of the report, Du Yishan was involved in checking it, so Chang Haonan was not very worried: Teacher, you have considered everything carefully. If you can do this, it is naturally the safest thing to do. At this point in the conversation, the former revealed a little secret on the phone: "It is precisely because of your special situation that the order in which your personal deeds are introduced, including the order in which you appeared at the previous awards ceremony, is specially arranged to be based on the strokes of your surname instead of the medal number, so that it is logical. I will put you at the end of the queue to give the program producers and the host at the time more buffer time. The fact that these modifications were made specifically for Chang Haonan obviously shows the importance he receives. After a short pause, Du Yishan continued: In addition, because it will involve the personal experiences of several of you, there should be a brief one-on-one interview later. When are you free in the past two days? I should be at home these two days, so you can come to me at any time, just work with their working hours. Generally speaking, Chang Haonan doesn''t like to participate in these things. ?But this also depends on the situation. CCTVs exclusive interview is worth it... ?This is not just a matter of winning honor for oneself, but more importantly, it also involves building his influence and voice. The simplest example, today Chang Haonan can already influence the development route of equipment construction and aviation industry to a considerable extent. But if it had been a year ago, when he had just been reborn, how could anyone care about how an ordinary college student guided the country? ? It is impossible to even have a channel to make suggestions, let alone have any impact. Only after he has proven his ability by completing projects one after another, can his opinions be considered to have real value. The accumulation of personal honors and improvement of status also have basically similar effects. "In this case, it''s better to hurry up sooner rather than later. I''ll ask the reporter over there to come to you in the afternoon. This way, if there is any need to make any changes later, there will be enough time left. Remember to listen to the phone and wait for the other party to arrive. Ill contact you again ?After finalizing some follow-up publicity matters with Du Yishan, the second person Chang Haonan contacted was naturally Tang Lintian. What the latter wanted to say was not much different from Du Yishan, so after learning that the interview had been arranged, he just chatted for a few words and hung up the phone. Then came the numbers that Chang Haonan had not remembered. In this era, there were not all kinds of rampant phone scams, so calling back an unknown number usually did not cause any problems. The first call, judging from the area code, was from Beijing. The call was connected, and the other party directly identified himself and said that he was the number one guest house in the aviation industry. ?This made Chang Haonan stunned for a moment, and then he realized that it was probably someone who was on a business trip to attend the ceremony last night who called him. After stating his name, the other end of the phone asked him to wait for a moment in a clear tone. It was obvious that the caller was well prepared for his call back. A few minutes later, a strong voice sounded: Xiao Chang, you performed very well at the ceremony yesterday. You really gave us aviation people a face and cheered up the whole China! ??Although the call quality in this era is relatively average and the sound signal loss is large, Chang Haonan still heard it immediately. It is Yang Fenghao. "Mr. Yang was so impressed. I was able to think of those things on the spot thanks to some of my reflections while participating in the 83rd Project. In the final analysis, I still have to thank you and all the seniors for providing me with good opportunities. and platform, including my ability to win the award this time, I still rely on my seniors and colleagues. ?This kind of private conversation is not the time for pretentiousness and pretentious talk. ?Chang Haonans gratitude to Yang Fenghao came from the bottom of his heart. ?While attending the ceremony yesterday, Chang Haonan saw on a table the relevant information of several people competing for medals. In the column of his recommended unit, he filled in: China Aviation Industry Corporation (main) and Beijing University of Aeronautics and Astronautics (associate). It is enough to show that even if Yang Fenghao did not play a decisive role in this matter, he should at least be one of the initiators. After all, at the end of last year, the other party personally promised that he would recommend a grand prize to him. ?Chang Haonan had some understanding of the chief engineer''s character in the past. ?Has a hot temper, even a little quaint, but is straightforward and does what she says. If I tell him to recommend it, I will definitely give it to him. Its just that I never thought it would be so big before. There are no outsiders here now, so Ill just say it straight. ?Faced with Chang Haonan''s thanks, Yang Fenghao did not shirk it. "I actually asked Liang Zhuoping to apply for this award at the beginning. Of course, comrades from Fucheng, Rongcheng, and Haojing also provided you with a lot of application materials, but in the end, it was you who actually won the award. "Myself, it is said that the six of you were selected from nearly a thousand people this time. The competition is quite fierce." "Of course, do I recommend you to go up? I also have selfish motives. In the future, you will become a famous person, but you must remember to help us more with the projects of our institute. In the second half of last year, with you at that time, the speed of advancing the project Its amazing. When I think about it now, it feels like a dream. Lin Shikuan and others from the digital design team talk about you all day long. I think I just framed your photo and hung it on top of the door of their computing center..." ?There was a burst of hearty laughter from the other side of the phone. There is no need to hang it outside the building... Even though he knew that Yang Fenghao was most likely joking, Chang Haonan still quickly stopped him. What is your identity? Hang the photo outside. ??Having a life that is too long to last is a yes. Dont worry, they are there for you. ?Yang Fenghata also laughed: You can come back to Shengjing when you have time. You are from Liucheng, so we are still fellow villagers. Even if there is no project, you can come back to visit relatives. In fact, at the beginning of this year, when Yang Fenghao first proposed to apply for the May 4th Medal to Chang Haonan, his plan was to attract the latter, and then take advantage of the fact that he was close to the water and wait for him to graduate. He came straight into the job. However, the plan could not keep up with the changes. Chang Haonan played a big game in the next four months, causing his name to quickly spread among high-level personnel within the Commission for National Defense Science and Industry, and more eyes were fixed on him than before. There are already many times more. On the one hand, the importance of this May 4th Medal recommendation to Chang Haonan suddenly dropped - you 601 do not recommend it, and there are many people lining up waiting to recommend it. On the other hand, Yang Fenghata is very courageous, but in the face of so many colleagues, he is also a little afraid of public outrage. In short, by the time he was on the phone with Chang Haonan, he had already completed a self-reconciliation and chose to settle for the next best thing. After all, given the capabilities of the other party, as long as they can put more thought into their project, not to mention directly leading to the finale, it can at least produce a huge boost. ?And Chang Haonan can naturally guess Yang Fenghao''s thoughts. ?This kind of thing can be considered a win-win situation. ??Although he hopes that he can develop some tools or methodological things to promote China''s scientific and technological and industrial development in a more even way. But the project must still be done. Technical work is his foundation. Even if he has gained a certain reputation and status, he must not lose it. Whats more, Chang Haonan has not had the experience of leading a project alone until now. In the field of engineering, this is ultimately a shortcoming. ? Many people have a misunderstanding, that is, they think that the step-by-step rules in this industry will limit the development of real talents. actually not. Even if you start with a max-level account, you still need to grow. Whats more, directly participating in the project will bring a lot of convenience. If nothing else, take the multi-physics simulation topic he has been studying recently as an example. Even if he does build the software after a while, the first problem he will face is how to promote it. Relying on administrative orders is of course one way, but in terms of effect, it is definitely not as shocking as him personally going out and using his own software to complete a large project. Successful experience is always the most convincing thing and is more useful than the statements of a hundred academicians. Just like Chang Haonan''s earliest achievement, that is, the Chang''s model of the wing derived from the MA-60 project, it has now been promoted almost within the entire aviation industry system. If there is no need for confidentiality, I am afraid that other industries will also Start adopting. ??The phone calls after Yang Fenghao all had the Haojing area code on the other side. Apparently it is 603 schools. As to why there are so many That was naturally because Yi Yuanhe, who represented 603, Guo Lin, who represented 14th Institute, and Yao Mengna and Xu Yang, who represented themselves, called separately. Fortunately, they basically just expressed congratulations, so they basically just chatted for a few words and ended. ?Perhaps the news that Chang Haonan finally woke up and started to call back was spread by someone unknown. After ending the call with Xu Yang, he no longer needed to take the initiative to call back Because new calls are coming in all the time. Rongcheng Institute 611, Fucheng Institute 624, Nanzheng Factory 182, Zhucheng Institute 648, and even Chang Haonan worked in the previous life, and in this life, they only have some work contacts in the 29 base... Even though quite a few of the phone calls were just to express brief congratulations, and only Xue Chishou from the 611 Institute chatted with him for a while, in the next hour or so, Chang Haonan still felt that he was in an unprecedented hurry. I finally understand the concept of "red people" that Yang Fenghao just mentioned. ??He has never looked forward to the activation of the text messaging function as much as he did at this moment. In the age of text messages and WeChat, many people with whom the relationship is only casual or work-related can send a text message to congratulate them. And he only needs to edit a response text message to send out a group message, instead of being like now, still having a dry mouth after drinking two large glasses of water. ?Shortly after the endless ringing of the phone finally came to an end, Chang Haonan received the news that he was ready to start the interview. Originally, he was a little nervous facing the one-on-one interview with CCTV. But after experiencing the indiscriminate bombardment just now, it seems to be nothing. Desensitization reaction, right Chang Haonan cursed while changing his clothes. ?Ten minutes later, when Chang Haonan saw a well-known host in the school conference room who was often called his sister, but was actually almost 20 years older than him, he was initially surprised. Later, after explanation, I found out that although this interview is not a special interview program and will not be broadcast in its entirety, there may still be some clips added to the report. In addition, it shows unprecedented attention, so it is impossible to randomly send any People come here. I have to say that the professionalism of the team sent by CCTV is no problem. Even though the host knew nothing about aviation, the entire interview process made Chang Haonan feel extremely comfortable. The series of questions were concise and powerful, but not intrusive. ??This is in sharp contrast to a certain female host who later interviewed Academician Ding Zhongli. At the end of the interview, the other party suddenly asked about what Chang Haonan said at the ceremony last night. "You are the youngest interview subject I have ever faced. Generally speaking, when people face a young talent, they always expect him to be more high-spirited or more public. But your performance last night But it showed us a different state. ?This time, Chang Haonan could not use joking to cope with the situation. So he lowered his head and thought for a while. ??The host did not interrupt, but quietly waited for the answer. After about ten seconds, Chang Haonan raised his head again: Personally speaking, I think youthfulness is not unruly, arrogant, or arrogant, but it means maintaining sincerity after thousands of sailings. (End of this chapter) Chapter 304 Separate futures (two-in-one) Chapter 304: Separate futures (two in one) In fact, this paragraph was not included in the original interview schedule. It was completely a question that the host Ni Ping just added on an impromptu basis. Mainly out of curiosity. ?Although she did not go on stage to host last night''s award ceremony, she still watched the whole process behind the scenes as a backup host. ?The most impressive part is naturally the section where Chang Haonan answered the question. Although many people at the time took it for granted that it was a link that had been prepared long ago, and Chang Haonan''s answer was naturally memorized, but as one of the core staff members who participated in the entire preparation of the program, Ni Ping knew very well that the question was between the two. It had been deleted from the first round of preparations a few months ago. The reason why I brought it up to ask again was because a leader responsible for awarding awards was delayed on the road that day, and the host was asked to postpone the timetable by five minutes. So Chang Haonan definitely didnt know that this problem existed before going on stage, let alone prepared in advance. ?That speech should be his own thoughts. ?This is where the problem just arises. Ni Ping didn''t even expect to get a serious answer at first, because the photographers next to him had already started to pack up their equipment and prepare to leave. Guests with a little experience in interviewing will know that the questions asked by the host at this time are often in the form of To relax your mind and bring the relationship closer, you do not necessarily need to answer in the same way as during the interview. ? Its just that Chang Haonan always remembers a classic line from a certain British drama at this time-all microphones should be regarded as open. Therefore, after he thought about it and said that sentence, Ni Ping, who had always been quick to respond, was distracted for an unprecedented moment. On the one hand, it does have some philosophy in it. ?On the other hand, she subconsciously felt that the other party seemed to have something in mind. ??Although I dont have a clue as to where it refers specifically, the statement that after thousands of sails, still maintain sincerity, it seems to be describing a person in his forties or fifties... Fortunately, no matter what, the subtitle of the subsequent report should be considered. ?Furthermore, this time, Im afraid it can also arouse some resonance in a wider range. The decision of Taiwan to choose Chang Haonan as the main publicity target is indeed correct... After coming back to his senses, Ni Ping smiled and responded: You said it very well. Although time cannot be turned back and age cannot be reduced, peoples mentality can completely return to their youth. Thank you very much for taking the time to be interviewed by us. The two stood up and shook hands as a farewell: "It doesn''t matter. We should cooperate with the publicity. Besides, this is a win-win situation for us." ?Chang Haonan said a little politely. After the interview, Tang Lintian originally planned to stay with the other party for a meal. On the one hand, he wanted to take this opportunity to develop media relations. On the other hand, Ni Ping is indeed quite popular these days. Unfortunately, they did not sell the show. Instead, they declined on the grounds that the program production cycle was tight and the materials they received needed to be returned to the station immediately for processing. "well" ?Looking at the backs of everyone from the program production team getting into the car and leaving, Tang Lintian sighed with a sense of loss: Xiao Chang, if you had spoken just now, I guess they would have been able to stay. Uhit shouldnt be that big of a deal, right? ?Chang Haonan was actually a little glad that Ni Ping and others refused. ?It''s already past six o''clock now. If we really want to eat this meal, I''m afraid we will have to stay up until midnight. ??He was also thinking about calling his family and relaxing again after he got back. By the way, theres something I forgot to tell you just now. ?Tang Lintian suddenly turned around and looked at Chang Haonan. Winners of the May 4th Medal will receive a bonus of 200 yuan, which has been distributed to the school. The corners of the latter''s mouth twitched slightly. Even in 1997, 200 yuan was not much. Of course, the important thing about this award is that it is an honor. Even from a utilitarian point of view, the various benefits that will be brought about by the long-term success are by no means comparable to a few hundred dollars. However, Chang Haonan did not expect that this benefit would come so quickly. Just when he was adjusting his mood and preparing to say something, Tang Lintian added another sentence: "Of course, the 200 yuan was given by the Communist Youth League. The school and the college took into account your contribution this year and decided to give you a special scholarship. In addition, the Beijing government also expressed its gratitude to you. Congratulations and condolences, and we have given you a certain reward. ??This breathy way of speaking is definitely intentional. Chang Haonan also experienced the feeling of riding a roller coaster. Fortunately, although he also likes money, he is still relatively calm on the surface and does not make a fool of himself. "The school contributed 50,000 yuan, and the capital contributed 10,000 yuan. The three bonuses add up to a total of 60,200 yuan. However, there are still some procedures to go through. You can keep a bank account of your own and we will complete the process as soon as possible. , give you the money." Dean. ?Chang Haonan said in as calm a tone as possible. "What''s wrong?" Do you need me to chase Teacher Ni and the others back? Since the dinner party has fallen through, Tang Lintian has not continued to retain Chang Haonan. He probably also considered that he should still have many people to contact, and he also has a lot of work to arrange later. ?As a dean, there is such a prominent figure in his college, so naturally he cannot just pass by. The quality of being low-key can be considered an advantage in a person, but it should never appear in an organization. ?This is not a problem for Tang Lintian himself, but also involves bringing honor to the entire college, school, and even Chang Haonan himself. So in the end, Chang Haonan left the aircraft building alone again. ?Just a few steps out, he saw many students walking in the opposite direction from him in groups. Many of them are familiar faces from the past. ?It is just after dinner, but even so, the number of people on campus seems to be much more than usual... Haonan! Just when Chang Haonan was a little confused, a voice suddenly came from the side. He turned around and found that it was several people who were in the same dormitory as him. To be precise, five people. ??Except for himself, it was normal for Wu Yifan to see no one in school, and Huang Zhiqiang was not seen either. ??Although we havent contacted each other for a year, we are roommates after all, and there is still some affection between us in our past and present lives. ?So Chang Haonan stopped and said hello to the other party. I havent seen you in person for the past year. Why do you feel like you are busier than Lao Wu? The roommates all knew that Chang Haonan changed to a single dormitory after getting his bachelor''s degree, but they didn''t know that he moved directly into the faculty apartment, let alone what he was doing now. Well, as you can imagine, Academician Du is very busy and the projects are not in the capital. During this period, I basically traveled twice a week, once for three days and once for four days. The humorous description made everyone laugh out loud. Then there was some pleasantries. Chang Haonan naturally couldn''t talk too much about himself, but fortunately, other people in the dormitory talked more, and he and Chang Haonan talked a lot about other people in the same grade. ?For example, Huang Zhiqiang failed the course, so he is now retaking it. He also has to complete the final project at the same time, and was rejected during the re-examination for the postgraduate entrance examination. His life is quite chaotic. Fortunately, Liu Hongbo showed some mercy. Liu Ran and other other team members just passed by with low scores and did not die together. ?Zhou Shuwan has also entered the laboratory, but his development is closer to the normal line and he is still helping his senior brother. ??On the contrary, their former counselor Liu Chenchen, because he speaks good English and can speak some French, seems to be traveling all day long like Chang Haonan, working on projects with his mentor. Zhang Man got an offer to study directly for a PhD at the University of Birmingham. There is an aerospace engine laboratory sponsored by Rolls-Royce. Although international students will definitely not be able to participate in any core work, as long as they can get in, they can even participate in some peripheral projects. , which is also quite an impressive resume after returning to China. "It''s just that I personally feel that she might not come back..." Another person shrugged and said half-jokingly. Strictly speaking, there is no evidence for this speculation. Even in Chang Haonans previous life, he actually didnt know where Zhang Man went or what he did. But there is still some rationality. After all, I am going abroad at my own expense. Even if I dont come back, others cant say anything. These days, how many public-sponsored international students are living abroad after graduation... Even though the country originally sent people out with the idea that one out of ten would come back with a profit, expectations are expectations and this does not justify some people to stay outside. As for the older people in the dormitory, although they have not continued their studies, fortunately they have all found decent jobs. ?For example, Liu Ran obeyed the assignment and went to a power plant in his hometown As to why people who study aircraft design are assigned to power plants... Dont ask, asking is a characteristic of the times. The job allocation for undergraduates can at best ensure that it does not go astray in general. For example, people who study mathematics will not be allowed to be copy editors. The rest depends on fate and whether they are tough or not. ?But Liu Ran himself thinks it''s pretty good. His family''s conditions are average, and if he''s close to home, he can spend less. ?The eldest brother in the dormitory, Liang Hao, jumped out and went to a company that had just restructured and switched to wind power. ?The other people have basically gone to private companies and foreign companies. There is no way, it is impossible for undergraduates to enter any core positions, and for ordinary employees, the income gap is really too big. What''s more, it''s almost May 1997, and anyone with any brains has already felt the cold winter brought about by the mass layoffs. After a conversation, Chang Haonan asked the question he had just asked. Speaking of which, I see that many people are walking that way today. They are going to... "you do not know?" Liang Hao showed a somewhat surprised expression: I just received a notice this morning, saying that there will be some kind of graduate education conference in the evening, and all the graduating students of the school must participate. Even Lao Wu who is outside the school said that he will come back. "You... didn''t expect that students who become academicians have such benefits, and they don''t have to participate in such boring things." Liu Ran, who was not very close to Chang Haonan before, also made a joke. "Well...I did not receive the notification. Maybe Academician Du pushed it for me." ?The former touched his chin awkwardly. ?According to his perception of the morality of the middle school, this education conference is absolutely inseparable from the May 4th Medal. The ceremony last night was not broadcast live, but there must be video clips. One day is enough to spread the word... As college students, there is no TV in the dormitory, and it is impossible to read newspapers all day long, so it is normal for these people not to know that Chang Haonan won the award. Of course, we should know it soon. After all, Chang Haonan did not go to the Laoshizi Conference with several other people. I educate myself, so there is no need. After returning home, the first thing Chang Haonan did was naturally to call home. The phone only rang once and was picked up. Brother, you are really in the news this time! Chang Jiayao''s voice made Chang Haonan couldn''t help but hold the receiver slightly further away. Well, yes, I won an award. I originally thought about telling you about it last night, but it was already past midnight when I got home, and I got up late today, so I put it off until now. Its okay, just treat it as a surprise for us. Chang Jiayao on the other end of the phone is very open-minded about this: When my mother came to me and told me about this at noon today, I still didnt believe it Halfway through speaking, Zhou Lis voice was heard from the distance again. She must have turned on the speakerphone: "When you came back during the Chinese New Year, we just felt that you were doing well outside, but it turned out that you were so promising. I just arrived at the work this morning, and I picked up a few newspapers. The six of you were all on them. Reports After get off work this evening, all the county leaders came directly to our house to offer condolences, and your father, the director of their municipal bureau personally called their office and said they would give them a bonus ??Neither Zhou Li nor Chang Yuanchao showed off this matter when they were outside, but after all, their son is so powerful, they will definitely be happy after returning home. ??And because I have been holding it in for a whole day, my excitement may be higher than when I first learned the news in the morning. Xiaonan is still awesome... he is worthy of being my son, Chang Yuanchao... Chang Yuanchao''s voice sounded a little drunk. He might have drank some during dinner. Normally, Zhou Li would never allow him to drink at home, but today''s situation was special and she made an exception. After studying abroad for so many years, I didnt spend much money at home..." Because Chang Yuanchao had made meritorious service while on the front line before, Chang Haonan and Chang Jiayao were both qualified to attend the police academy with very low scores in the college entrance examination, which was regarded as a kind of care for the children of those who had made meritorious service. ?However, this kind of quota is limited, so if the child at home does well in the exam and does not occupy it, the bureau will issue a bonus. It probably means "Thank you for leaving opportunities to your children for those who need them more." ?Judging from Chang Haonans score in the college entrance examination, he naturally got the top grade, 3,000 yuan. Including this time, it does cover a large part of the expenses in the previous three years. Also, the organization asked your dad if he wanted to be transferred to the city bureau, but he refused. This old man is really..." Before Zhou Li could finish her complaint, she was interrupted by Chang Yuanchao: I went to the municipal bureau and became my deputy section chief. It was no big deal. Besides, I asked you if you wanted to go to the province to teach in key areas and you didnt go either..." Obviously, the old couple had a good sense of what they could and should not take. ?The former was not angry at all before he finished speaking. He waited for his husband to finish speaking before explaining on the phone: "Xiaonan, that''s all your dad and I are capable of. If this wealth is given to us, we won''t be able to keep it. Let me save the key points. What if the students are better than me? It doesnt matter if you have the worst grades and Im being laughed at. If youve delayed other peoples children, theyll stab you in the back..." Chang Haonan originally wanted to speak out to comfort his mother, but after thinking about his very poor Chinese language performance in high school, he really didn''t have any position to say it. Zhou Li did not give him a chance to organize his words, and then continued: "In addition, I think that we have so many people at home who come to express condolences and report the good news. The impact of this award should be great. You are more capable than the two of us, but you must also pay attention to it outside. The more proud you are, the less likely you are to Get carried away, take the rewards given to you by the organization as you should, but some of them are more personal, so you have to think carefully..." As people who have experienced special times, Zhou Li and Chang Yuanchao are quite sensitive in this regard. ?Of course they actually underestimated their sons influence. ?Before winning the award, he had already had a pleasant chat with leaders at the Science and Technology Committee and the Science and Technology Committee... Dont worry, Mom, Ive got it figured out. ?In order to reassure Zhou Li and consider confidentiality issues, Chang Haonan did not say too much about his specific situation, but just agreed: This time, the school and the city have given out a lot of bonuses. When I go home during the Chinese New Year this year, I will change your house to a house with better conditions. Tongzilou is too inconvenient..." This was an idea he had during the Chinese New Year this year, but at that time it was really not easy to explain how so much money came from, so he had to give it up. Now that we have the name of the May 4th Medal, it can be used to explain it. "Nonsense, we have two iron rice bowls, and you still need to support us? Besides, your sister has passed the physical examination for flying. If she does go to flight school, it will be sponsored by the state. It won''t cost a penny from the family. If you have money, you can save it." Get up and prepare to buy a house and marry a wife then..." Mom, I havent reached the legal age for marriage yet ?Chang Haonan replied somewhat helplessly. Although everyone generally says that he is less than 23 years old now, this is because northern areas are used to counting false years. In fact, Chang Haonan is still under 22 years old and cannot get married... Get ready first. If you really have a good eye on things like marriage, it will be very fast, like your dad and I..." When the topic came to this field, Chang Haonan knew that it was time to end todays call. (End of this chapter) Chapter 305 Inspiration has arrived! Chapter 305 Inspiration is here! At the same time that Chang Haonan was walking home just now. On the other side, in the college auditorium, the graduate education conference organized by Tang Lintian and held simultaneously by all colleges in the school is about to begin. The 1990s are no longer what they were 30 or 40 years ago. On the one hand, people''s hearts are floating, and not many people are willing to listen to these sermons. On the other hand, as the older generation gradually retires, the level of ideological education work has declined sharply. In short, basically few people are willing to participate in activities with this theme. Whats more, its only for graduates. ??Some students who have found jobs in private companies around the capital have already started internships at this time. ??Had it not been for the worry about graduation certificates, I am afraid that not even half of the people present might have attended. ?Even if we force people to come here, most peoples attention is not on the stage at all. ??Its true that I dont have a smartphone to play with at this time, but its actually difficult to control things like secretly reading a novel down there. ??So the counselor in charge of hosting the meeting just maintained order for a while and announced the start of the meeting. According to the normal procedure, the leader present should give a speech first. But the situation today is a little different. The lights in the venue quickly dimmed. ?This made the students who were looking down at the novel feel a little dissatisfied. But a projector soon came on. Immediately afterwards, an advertisement sound came from the surrounding speakers. Easily identify authenticity and enjoy the real Liuliangye It can both supplement calcium and help calcium absorption, Longmu Bone Strengthening Granules, Jiangcheng Minjian Nearly everyone looked up in surprise. Apparently, a TV program is playing on the curtain. Watching TV is still a relatively mainstream form of entertainment in this era. It naturally attracts everyones attention. ?However, some people immediately saw that this was CCTVs advertising content before Xinwen Lianbo. Hey, isnt this CCTV 1 Many people suddenly became less interested. It took you a long time to force everyone to come here just to watch todays news broadcast? MD, its better to let us find a place to look by ourselves. I even ran back from my unit in Miyun today... ??The teacher who presided over the meeting had no choice but to turn on the microphone and speak a few words, and then he barely calmed down the various resentments in the stands. ?Although even watching the news is better than listening to a few old men reading on the stage, it can only be said that the benefits are very limited. A few minutes later, a picture of a watch with a gold frame and a white dial appeared on the screen. Fiyta will tell you the time Then there is a piece of familiar music and the hosts familiar announcement. A lot of people have begun to whisper under the cover of the speakers. Yesterday, with the approval of the ZGZY and the Communist Youth League ZY, the newly established Chinese Youth May 4th Medal completed its first selection. The six young people who finally won the award were the squad leader of the Eighth Company of the Special Security Regiment of the Shanghai Garrison District of the Jinling Military Region, and the public award..." Li Bin, worker and section chief of Shanghai Hydraulic Pump Factory Students from the School of Aeronautical Science and Engineering, Beijing University of Aeronautics and Astronautics ??The moment Chang Haonan''s name and the unit he belonged to were read out, there was a moment of silence in about half of the venue. The host has just said that this is the first issue of a series of special reports. It mainly introduces the background and significance of the establishment of the May 4th Medal, as well as the selection method. Therefore, it does not elaborate on the deeds of the winners. But its no longer important. ??Although everyone sitting in the venue has little social experience, their IQs must be high to be admitted to Beijing Airlines. It is not difficult to feel the magnitude of this honor from the words used by the host to introduce the May 4th Medal. The School of Aeronautical Science and Engineering occupies almost half of Beijing Airlines, and because of Chang Haonans extraordinary performance in the aircraft design course last year, basically everyone in the entire school has some impression of him. People from other majors, or who are not familiar with Chang Haonan, dont feel deeply about it. At most, they express emotion that there is such an awesome person around them. But these people in the same class or even the same dormitory were shocked in a completely different way. Liang Hao, who had been chatting with a few people next to him just now, suddenly widened his eyes and raised his head suddenly. The words written at the bottom of the screen proved that he had heard correctly. No, wait... Wu Yifan next to him was even more unbelievable. After all, the two met once a year ago. At that time, he had no idea that his roommate was already so awesome. Is this Chang Haonan the Chang Haonan we know? "There is no other person with this name in our profession..." Liu Ran raised his hand to straighten his hair, and almost involuntarily looked at Huang Zhiqiang, who was sitting alone in a corner. The distance is a bit far and I cant see the latters expression clearly. After the cheating in course design was exposed, several people in the same group basically cut off contact with Huang Zhiqiang. Even Liu Ran, who lives in the same dormitory, can only see each other when sleeping at night. He still remembered that just a year ago, the two people seemed to be competing for the same thing, but now... It seems that we are no longer in the same world. No, thats not right. A year later, Liu Ran suddenly realized. ??If you carefully recall that incident in the past, it was actually Huang Zhiqiang who was causing trouble from beginning to end, while Chang Haonan actually didn''t even show a gesture of fighting back. In other words, the latter may not even know that someone is doing some small tricks behind the scenes from beginning to end. ??No one has exerted any strength at all, so you just trapped yourself in a cocoon and killed yourself. ?Thinking of this, he smacked his lips with emotion. Obviously, the two did not compete in this year. They were not on the same starting line from the beginning... Wu Yifan, who was sitting next to him, felt happy after the initial shock. NND, we have to find a way to invite this kid out to celebrate He thought in his mind. ?In the past few years, although the two have different interests, they have maintained a pretty good personal relationship. About a year ago, we collaborated on a business and made a small profit. ?Wu Yifan, who has been working hard in the business world for several years, knows very well that in matters such as building relationships, icing on the cake is definitely not as good as providing help when the time is right. ?Hence, although I didnt have any utilitarian ideas at the time, from the perspective of hindsight, it was definitely a successful investment in favors. ?Now Chang Haonan can be said to have ascended and become an immortal on the spot. For him, there are absolutely only advantages and no disadvantages. ? Even if it seems that you dont need the other party for anything now, your connections must have been established in advance, and the more, the better. It will be too late if you dont think of it until you are using it. Compared with this, Zhou Shuwan, who was sitting in the other row, was relatively calm. ?After completing his postgraduate studies, he also started working on projects with his mentor. Although he was always a junior, he had heard about Chang Haonans deeds. ?Especially the recent negotiations with European parties, which even made Airbus prepare to purchase Huaxia subsystems for the first time, are equivalent to a shot in the arm for all China Airlines people. ?So its not a surprise to win such a grand prize. As for jealousy, there is no such thing. Generally speaking, people only feel this way about people who are slightly stronger than themselves. When doing group work last year, Zhou Shuwan had already realized the gap between the two. To put it a bit exaggerated, it is the distance between man and God. Better than normal. ?The sudden memory of what happened last year also made him involuntarily cast his eyes on Zhang Man, who was sitting not far away. After that dinner, Zhou Shuwan finally realized that the other party actually didn''t like him. But feelings are not so easy to let go of. In short, there are bound to be many people who have trouble falling asleep tonight for various reasons. ?Of course this does not include Chang Haonan himself. For him, after the CCTV interview ended in the afternoon, the matter was over. ?Of course, the 60,000 yuan bonus that has not yet arrived is a small sum, but he believes that Tang Lintian cannot lie about this kind of thing. There is nothing to worry about. Free time is always short. After two days of rest, Chang Haonan once again devoted himself to the compilation of the textbook. In the pain of Teacher Liu Hongbo, the theoretical experience of the system increased slowly at a rate of dozens of points every day, and soon approached the critical point of upgrade. ?However, what he never expected was that it was not the textbook that ultimately led to this upgrade, but a paper he accidentally saw. A thesis in applied mathematics. Translated into Chinese, it is "Research on Dimensionality Reduction of Strongly Nonlinear Partial Differential Equations Based on Variable Separation". First plus one more, not in the 5th more of the alliance, it should be sent (End of this chapter) Chapter 306 Dimensionality reduction problem of nonlinear partial differential equations Chapter 306 Dimensionality reduction problem of nonlinear partial differential equations ??Although Chang Haonan''s award has given the school a lot more publicity work to do, Tang Lintian will naturally not forget what he promised a few days ago. ?Within a few days of effort, the external network connected to the school could already access several of the more mainstream academic databases. About half a year ago, when Chang Haonan began to seriously consider writing a new simulation modeling software, he realized very clearly that the study of multiphysics, especially strongly coupled multiphysics problems, is essentially a study of nonlinear partial differentials. Solution of systems of equations. But when this kind of thing is implemented in the engineering field, it is often not as simple as a sentence. Especially considering that the computing speed of todays supercomputers is not optimistic. There is no way to obtain analytical solutions for most partial differential equations. At least in a short period of time, we can only work on numerical solutions. ? Many solutions that are very aesthetic in mathematics may not be practical. Traditionally, the dimensionality reduction of dynamic systems of nonlinear partial differential equations mainly uses methods based on variable discretization, typically such as the finite element method, the finite volume method and the finite difference method, which can be called the three masters in this field. But there are not no other ideas. For example, Chang Haonan accidentally saw this paper when he was resting in the computer room one night. ??Although the article is in the field of applied mathematics, it was published in a seemingly unrelated journal in the field of chemical engineering. ChemicalEngineeringJournal A magazine that would be considered famous more than ten years later, but at this time it was just a humble magazine that had just been launched. The reason why he was attracted to click in and download it at a speed of several kilobytes per second was mainly because the summary was so attractive. The current commonly used finite difference method and finite element method can only obtain high-dimensional ordinary differential equation systems for dimensionality reduction of nonlinear partial differential equation dynamic systems. In the past forty years, system reduction based on variable separation has become more and more difficult. The dimensional method has been developed rapidly. Under certain conditions, it can avoid some essential problems caused by the spatial discretization method and reduce a type of nonlinear partial differential equation dynamic system to a lower dimension, which facilitates rapid analysis, calculation and optimization. And the implementation of active controllers can be applied to numerical analysis of common mechanical and thermal coupling problems in the field of chemical engineering..." Although the specific issues involved have nothing to do with aircraft design, the mechanical and thermal coupling mentioned in it is originally the most basic and most urgent issue that Chang Haonan currently faces. ?This excerpt simply spoke to his heart. He believed that when Lu Yuying saw his paper for the first time in Rongcheng a few months ago, the sense of transparency in his heart was nothing more than this. A few minutes of download time has never been so long. Chang Haonan stared at the progress bar on the screen and clicked on the document almost as soon as the download was completed. "It is well known that any continuous function can be approximately represented by the expansion of the Fourier series sequence. Based on the above principles, the space-time affinity variables in nonlinear partial differential equations can be expanded into an infinite-dimensional space basis function set and its corresponding The form of the series sum of time coefficients is: ?X(z,t)=(i=1,)Ʀi(z)xi(t) where xi(t) represents the time coefficient corresponding to each basis function i(z)..." Its really basic. Space-time variable separation technology is not a new thing. It can be found in any mathematical physics method or similar textbook. However, it is generally believed that partial differential equations suitable for using the separation variable method should have certain forms and characteristics, such as linear and homogeneous. , separable, coefficients only depend on one variable, etc., which greatly limits the application of such methods. ?So Chang Haonan quickly skipped this part and looked directly at the third section, which is often the first section of the text: In order to explain the dimensionality reduction method of dynamic systems of nonlinear partial differential equations in detail and clearly, this section uses the parabolic nonlinear partial differential equation system as the object for explanation... "coming!" His spirits perked up when he saw the content he was interested in, and even the slight sleepiness he felt just now disappeared instantly. The boundary conditions and initial conditions are: where x(z, t) represents the space-time state variable, and is a continuous function on the infinite-dimensional Hilbert space defined on the space region [a, b]. Represents the spatial coordinates, z[a, b] represents the spatial coordinates, which is the subspace on the real number domain defined by the process, t[0,) represents the time variable Finally, the expression form of the above nonlinear partial differential equation system in Hilbert space H([a, b]) can be obtained: x(z,t)/t=Ax(z,t)+Bu(z,t)+(x,z,t) x(z0)=x0(z) ??Two simulation examples are given below, namely the dimensionless Kuramoto-Sivashinsky equation in one-dimensional space, and the temperature and pressure field of a non-isothermal tubular reactor... "Well...there''s something..." Chang Haonan saw the back and nodded with understanding. "In general." He took out a piece of paper from the printer next to him and began to summarize to himself, First, select an appropriate space orthogonal basis function and use space-time separation technology to separate the space-time variables of the dynamic system of nonlinear partial differential equations, that is, expand the space-time affinity variables of the system on the selected or obtained orthogonal space basis function , substitute the expansion into the original system and combine it with the nonlinear Galerkin method..." An hour passed quickly while he was writing and drawing. ??Although the object used to illustrate the theory in the article is only a very simple parabolic system, the two application examples cited later are indeed quite good and worthy of the author''s boast in the abstract. This article is even worthy of submission to a higher-impact journal. The reason why it appears here is most likely because the author and the editor-in-chief are from the same school and received an invitation to submit a manuscript. In fact, at the end of the summary, Chang Haonan also discovered parts that the author himself had not written. This method in the article can not only be applied to heat transfer and flow field calculations, but with slight modifications, it can even be used to deal with mass transfer problems and the chemical reaction process itself. In other words, all the characteristics involved in the chemical production process can be included. ?Of course, the fact that it was not written down may not mean that the author did not discover it. It is possible that he was saving something to prepare another article... But...there are still problems. ?Chang Haonan looked at the three pieces of draft paper in front of him that were already filled with writing. Although it can be applied in a wide range of fields, it does not mean that the method mentioned in this article is a master key and can be directly transferred to the scene Chang Haonan needs. "Using eigenfunctions as spatial basis functions combined with the weighted residual method to reduce the dimensionality of the nonlinear partial differential equation dynamic system can obtain a finite-dimensional ordinary differential equation dynamic system to approximate the infinite-dimensional dynamics of the original system, but essentially linear methods are still used Approximation is still not enough for real strongly nonlinear problems. However, if other spatial basis functions are used in the dimensionality reduction process, such as Fourier sequence functions and orthogonal basis functions, it may be dynamically related to nonlinear partial differential equations. The characteristics of the system itself are irrelevant ?Thinking of this, he turned his head and glanced at another room next to him where a supercomputer was placed. ?There is of course no problem in theory, but if we really start to calculate... Since the computing center that I am responsible for has just been opened, there are not many projects currently using it. However, the load on this supercomputer has been reduced to a very high level. ??If we leave it ten years later, it may not be impossible to calculate it according to the ideas in the article, but with the current domestic supercomputing level, I am afraid it will take several years to calculate the force-thermal-electric coupling level of the phased array radar array... Whenever I have the time, I will create a test version. It will definitely not work. What if we use the balanced truncation method or the optimization method... The pen tip in Chang Haonan''s hand began to slide on the paper again. Soon, the fourth and fifth pages of draft paper were also filled with writing. The sound of creaking equipment was heard in the computer room. The moon outside the window climbed from the horizon to the mid-air, then gradually set, and finally ushered in a rising sun. "I see." (End of this chapter) Chapter 307 Theoretical level LV3, try your best! Chapter 307 Theoretical level LV3, a small test of your edge! ?Just when he had just used up the last piece of paper in the printer''s paper tray, Chang Haonan finally caught in his hands the seemingly absent thoughts that had been in his mind before. ?After finishing everything on paper, looking back, he realized that it was all so obvious. ?Most of the content has actually been done by predecessors, and has even remained in textbooks for dozens or hundreds of years. Very lucky, he was the one who finally found this last and most important piece of the puzzle. ?Of course, from a purely mathematical perspective, there are still many loopholes. Even if it is published as a paper in a journal in the field of mathematics, it may not be approved. Because it contains a lot of his own experience summaries and even conjectures. But thats not important. For the field of mathematics, all results must be rigorous. The review process of an academic paper is likely to take several months or even longer without touching on the theoretical framework of the paper''s topic. However, for the computer field, especially the computer field in the 1990s, a few months is almost equivalent to the development from prehistory to modern times. How can it be possible to wait for you to slowly review it. So it is not uncommon to apply immature ideas first and then gradually improve them. As for what to do if a problem is discovered during the application process... ?Wouldnt that be better? Programs are originally made up of **** and bugs. If problems are discovered, they should be fixed. Perhaps some new breakthroughs can be made in the process of revision. A certain station A was established and developed due to this situation. In the final analysis, Chang Haonan is currently in the field of applied science, not basic science. ?The results he achieved this time, if fully expanded, would almost be enough to bring the field of engineering computing into a new world. After suddenly relaxing, a feeling of sleepiness suddenly hit me. ?Even though he had "stored" a period of sleep before, the continuous rotation of this period, combined with the all-nighter just now, still put him in a weak state. Under normal circumstances, he should take a nap and wait until he is well rested before continuing his work. But Chang Haonan is different. Since we already have the idea of ??forming a closed loop, it means... Can be hacked. ?So he opened the system panel. Then, I captured the changes in an instant... Scientific Research Points: 1000 Theoretical level: LV3 (8800/100000) Engineering experience: LV2 (4000/10000) Management ability: LV2 (3000/10000) Comprehensive ability: LV2 Projects in progress: 0 Projects that can be carried out: 2 ?Having been stuck at the theoretical level of LV2 for a year, I was upgraded unknowingly in one night. And after upgrading, 8800 experience points are still maintained. In other words, the round of brainstorming just now directly brought up to 10,000 points of theoretical experience. ?This may be the reason why he suddenly had a flash of inspiration at a certain moment. Just because this result only exists in his mind and has no obvious impact, the number of scientific research points has only increased by a mere 100 points. But dont be in a hurry. ?Chang Haonan tried to get the system to start a project with his own ideas. Of course, it is impossible to start writing simulation modeling software in one step - that is not a task that can be completed by one person. Even if the system directly outputs the results, typing the code by himself is enough to cause tenosynovitis. Just trying to further improve this method to adapt to more types of partial differential equations. As expected, passed smoothly. And it only costs 50 research points. Generally speaking, the higher the degree of completion of the ideas he inputs into the system, the fewer things he needs to do with the help of the system and the fewer scientific research points he consumes. 50 points, indicating that although the subsequent work is complicated, it actually does not involve too much creative part. When Chang Haonan finally walked out of the room, everyone in the computing center was startled by his messy hair, vicissitudes of life, stubble, and slightly pale face. ?Especially Tang Lintian, who happened to be here waiting for the results. Just kidding, his plan to take the school to a new level depends entirely on the man in front of him. If he gets tired, he won''t have anywhere to cry. "Xiao Chang, what are you..." Speaking, he quickly took two steps forward and supported Chang Haonan, who was a little unsteady in his steps. What have you been doing? Nothing. I spent two days studying the dimensionality reduction problem of nonlinear partial differential equations and got some results, so I forgot about it. The two of them sat on a bench together in the lobby of the computing center. Then you wont even be able to eat or drink water these days ?Tang Lintian has already begun to think about whether to call an ambulance. Of course thats impossible. I have bottled water and biscuits in my office, but I havent slept much... Chang Haonan rubbed the sore back of his neck and replied. In fact, his whole body is a little sore now. In the end, Tang Lintian was still a little worried, so he called an assistant over, and the two of them took him home together, and even gave him a meal from the canteen. One day later. Beijing Airlines, in a conference room in the aircraft building. ?Du Yishan, Liu Zhenxiang, Tang Lintian and Liu Hongbo sat together and listened to Chang Haonan in front of him explaining the new method he had conceived on the blackboard. ?Of course, considering Chang Haonans current level in the field of numerical computing, this obviously cannot be regarded as a defense. ??There are few people left who can be judges for his defense. It can only be said to be a small-scale report. ?After Chang Haonan wrote the last symbol on the four blackboards, he turned around and was greeted by silence. Fortunately, excluding the confused Liu Hongbo, the other three people were all looking down at their notebooks, obviously understanding at least the main part of it. Xiao Chang, I kind of understand your idea...but with all due respect, if you want to publish a paper, Im afraid it will be difficult to publish it in a journal with a high impact factor... ?Although Tang Lintian is not an academician, he is actually the earliest to come into contact with the field of numerical computing, so he is the first to raise his head. ?According to the principles set by Chang Haonan and others, this kind of methodological and tool content that does not involve specific projects should still be published in order to improve the efficiency of diffusion and application. Just like the previous paper on differential evolution algorithm. ?Although the whole world can see it, the ones who benefit the most are obviously the Chinese side where Chang Haonan and Xu Yang are located. Far more cost-effective than holding it in your hand. But Chang Haonan nodded: I know that there is too much empirical content and speculation, and it is difficult to pass the strict review process, so this time, I am not planning to publish it. Then what do you mean I am going to write a brand new software to deal with simulation modeling problems of strongly coupled multi-physics fields, and the set of things on the blackboard is one of the tools used by this software. This is the first time that the latter has expressed his idea of ??writing software on a formal occasion. "But this is a big project, much bigger than the aircraft icing simulation software I worked with Jincheng University before. Moreover, engineering software is not a one-time deal. It needs continuous optimization and upgrades in the future, so I need a A complete project team must be sustainable for a long time, as well as funds and servers. ?Du Yishan and Liu Zhenxiang also raised their heads and looked at each other. If this is the case, Xiao Chang, the traditional research group model may not be suitable. After all, Liu Zhenxiang was experienced and quickly realized what Chang Haonan needed. You need a company, a company that is supported by the school, the Science and Technology Commission, or even higher-level units. A company This is something Chang Haonan has not thought about. He does not understand business management and the various laws involved, but as Liu Zhenxiang said, this is the most appropriate method for a software that requires long-term maintenance. Seeing Chang Haonan who was a little undecided, the latter continued: "But don''t worry about the company''s affairs. I suggest you find a project first, get affiliated with it, and then take the lead in completing it, just like how you rewrote our country''s aviation standards through the Turbojet 14. Prove to the superiors that you proposed The value of this method will be less, and more resources will be obtained. Do you have any goals? ?This problem is much simpler, and Chang Haonan even had a plan in mind. "This method can handle the coupling effect of mechanical and thermal dual physical fields. You can contact the Chengdu 611 Institute. I have promised them a long time ago to apply an active stability control technology that can reduce the risk of engine surge on Project 10, which happens to involve to related issues. (End of this chapter) Chapter 308 Cutting-edge technology, but not cutting-edge enough Chapter 308 Cutting-edge technology, but not cutting-edge enough ?? Lu Yuying was originally promised to do active stability control and surge prediction for the J-10. It was actually before the Spring Festival this year. However, due to frequent accidents after the new year, Chang Haonan has never been able to fulfill his promise. ?Furthermore, since Lu Yuying is not actually involved in Project No. 10, this matter has not yet started until now. It still needs to be communicated with Song Wencong or Xue Chishou who are actually responsible for Project No. 10. ?Of course, with Chang Haonan''s current popularity and influence, there is no need for Du Yishan to do this for him like he did a year ago. After the meeting, he quickly dialed the number of the 611 institute. Of course, it was impossible for the operator on the other side to decide on such an important matter. Therefore, after explaining his identity and purpose of coming, the call was transferred several times before a young male voice sounded on the receiver again: Chang Gong, you are such a busy person, why dont you think of contacting us. If Mr. Lu hadnt mentioned this when I met you in Yanliang, we would have thought that you would let us go. ?Chang Haonan quickly recognized the identity of the person who answered the call. Deputy chief designer of Project No. 10, Yang Wei. When he first saw the J-10 that had entered the final assembly state at the 132 Factory in Rongcheng, the two had met once before. "How can I? I always keep my word, but there are too many things going on during this time, and I can''t get away from it." Facing the other partys half-joking ridicule, Chang Haonan also chose a more relaxed way to respond, "This is not something I just promised you when I had some free time, and the first thing I thought of was to make a phone call." The series of disturbances caused by Chang Haonan in the past two months have basically shocked the entire Science and Technology Commission system. As the deputy chief engineer of the project, Yang Wei naturally cannot know anything about it, so he didn''t really have any dissatisfaction just now, just as a Just a few jokes between acquaintances. That''s right, although the two had only met once and the conversation lasted less than five minutes, in Yang Wei''s heart, Chang Haonan had already been classified as an "acquaintance". For a super genius like him, the depth of friendship is not mainly determined by the length of time they have known each other, but by seeking a compatibility in spirit and ability. Coincidentally, Chang Haonan is one of the few people who can meet his requirements. ?Furthermore, although the age difference between the two is more than ten years, it is not to the extent of being separated by a generation, and it is easier to get along with each other. "It doesn''t matter, just remember us. The final assembly of the No. 01 prototype of Project 10 has been completed. We are conducting system inspections of the entire machine and preparing for a series of ground tests before the first flight. We need you to use your expertise. When helping to define testing and test flight conditions. Obviously, the progress of Project No. 10 has been rapid during this period, and the positions of Song Wenchong, Yang Wei and even Chang Haonan have been arranged. ?Just wait for him to pass before starting work. Its just that this time, Im afraid they wont be able to do what they want right away. Chang Haonan directly stated his intention: Gong Yang, Im afraid we have to put the matter of determining the test conditions on hold for a while. Im contacting you today because I have a new idea that can greatly improve the stability of aeroengines. Aerodynamic instability control of aircraft engines? ?Yang Wei over there was stunned for a moment after hearing Chang Haonan''s answer. But in this regard, we have made some restrictions in the flight control... As a third-generation fighter jet that uses all-digital fly-by-wire, the J-10 naturally considered the safety risks caused by the failure of a single-engine aircraft engine at the beginning of its design, so it was not unprepared in this regard. But only halfway through speaking, Yang Wei''s voice gradually became quieter. Nothing else, the person on the phone who suggested a "new idea" was Chang Haonan after all... Even though he had never worked with the latter before, Yang Wei had basically heard of the names of people, the shadows of trees, and various deeds about this young genius. In short, what would allow such a person to make a special phone call to contact me would not be the traditional aviation engine instability control strategy. But for more specific things, it is impossible to talk on the phone. So he changed the subject: Well, Im afraid its hard to explain the technical details over the phone. Ill arrange a business trip to the capital as soon as possible to listen to your thoughts. How about that? This reflects the change in Chang Haonan''s current status. ? A year ago, in this case, the only possibility was that he would fly over to find someone else. How could it be possible for his deputy chief designer to make a special trip for one of his ideas? But now, Yang Wei made this decision almost naturally. ?Of course, this is not because Chang Haonan meant to put on airs. In fact, the performance of the new supercomputer assigned to him by the school is really good, and 611 schools do not have the same level of equipment... In short, it smells really good! As a top engineer, Yang Wei is naturally very efficient in his work. After only two days, he arranged his work in Rongcheng and came to Beijing Airlines accompanied by several entourage. The two met in a conference room that Tang Lintian had arranged with a high enough level of confidentiality. Chang Gong, nice to meet you again. "me too." The two exchanged a few brief greetings and then got straight to the point. Then...let me introduce some relevant ideas about active control of compressor instability. ?Chang Haonan opened the laptop on the table and the projector not far away. Then a blank picture appeared on the curtain hanging on the wall That''s right, a year later, he made a PPT using the ancient version of office. ?Before rebirth, if Chang Haonan was asked to make a list of the things he hated most, then doing PPT would definitely be in the top five. But after returning to 1997, Chang Haonan thought about it and found that nothing could replace the role of PPT in this situation. Because with a large number of charts, handwriting will only require more work, and it is not as intuitive as PPT. According to my personal understanding, at present, the internationally advanced aviation engine instability control strategy is based on the instability control line. As Chang Haonan clicked the mouse, an engine operating curve chart appeared on the screen. Since the instability boundary is highly uncertain and will be affected by many factors such as flight attitude, environmental factors, aging of engine parts, etc., in order to ensure that the engine always operates within a safe range, a rule is determined during the design stage of the engine control system. The fixed boundary, that is, the instability control line, takes into account the stability margin loss of the engine under the worst operating environment and can ensure that the engine is away from aerodynamic instability. " When the pilot determines that the aircraft is at risk of aerodynamic instability, or when the sensor detects that the engine has crossed the instability control line and sends a reminder to the pilot, a short-term stability augmentation system can be manually activated to reduce fuel supply within a specified period of time. By adjusting the exhaust valve, adjustable guide and nozzle area, the engines working condition can be kept away from the unstable operating line. ??When this accompanying picture was released and after listening to Chang Haonan''s short two-sentence summary, Yang Wei knew that his trip would not be in vain. Because the other party got their current plan right as soon as they came up. He nodded: "Yes, this is the instability recovery control system we plan to apply to the J-10. Of course, we still need to cooperate with the Rulika Design Bureau that provides power to improve the aircraft''s full authority digital electronic control (FADEC) system. , this should also be the most cutting-edge stability control technology currently used in third-generation fighter jets abroad. If you compare the situation in the past, it is indeed very cutting-edge. ?After hearing Yang Weis answer, Chang Haonan showed a smile: But, its not cutting-edge enough. (End of this chapter) Chapter 309 Boss Yang Wei’s shock Chapter 309 Boss Yang Weis shock Having said this, Chang Haonan stood up directly, came to the side of the curtain, and said while gesturing on the picture: In fact, we can see from this picture that the closer the area is to the instability boundary, the higher the compressor boost ratio. The higher the boost ratio and the higher the efficiency, the higher the performance of the engine. However, the existence of the instability control line makes it impossible for the engine to operate in the area between the instability boundary and the instability control line. However, most of the time, the engine can operate stably in this area. It can be seen that the existence of the instability control line actually exists. This prevents the engine''s performance from being fully utilized." "The short-term stability augmentation system is a form of open-loop control and requires the pilot to manually turn it on. This means that pilots with relatively conservative flying habits may activate the system before the engine actually reaches the instability control line, further reducing the engine speed. Performance potential, and pilots with aggressive flying habits may not turn on this system until the engine has entered a state of aerodynamic instability. Often, at this time, the engine''s working condition has begun to be damaged and enter an irrecoverable stall, which greatly affects flight safety. discount." After explaining the shortcomings of this traditional method, he sat back in his seat and clicked the mouse to release the next page of PPT: So when I was working on the 83rd Project last year, I began to consider whether we could use a more precise method that would have less impact on engine performance to control engine stability. Finally, I summarized two new methods not long ago. The methods are stability seeking control and active surge control. "The former integrates the engine stability check into the engine''s control system and determines the instability control line position through real-time assessment of engine stability, rather than the worst-case scenario assumed during design, allowing the control system to minimize the stability margin. , thereby improving engine performance. And the latter... Before introducing active stability control, please allow me to mention a brand-new concept named by myselfsurge precursor. Surge precursor ??Yang Wei''s eyes seemed to flash with a light: You want to predict surge in real time? ?It can only be said that the boss is the boss. Although he was facing a completely new concept, he still realized what Chang Haonan was going to do in the shortest time. ??The few people who followed Yang Wei immediately showed expressions that were almost horrified. The essence of surge is a positive feedback self-excited process. That is to say, once a certain part starts to surge, unless it is stopped and restarted immediately, the surge will be "infected" to the entire system in a very short time. inside the engine and cause irreparable damage. In other words, for traditional methods, when you detect abnormal engine data, it is actually too late. ??It is several orders of magnitude more difficult to accurately predict surge than to accurately predict the weather! In fact, even after surge has occurred, it is quite difficult to reversely find the operating point that induces surge from the data recorded by the engine control system. Chang Haonan himself should have some experience of this. So ??How much knowledge of fluid mechanics do you need to dare to boast that you can predict surge in real time? Thats right. Facing Yang Weis question, Chang Haonan just nodded lightly and replaced it with another picture: After analyzing and summarizing a series of surge failure data that occurred on the J-8 and J-H7 aircraft, I noticed that during the stall initiation process before the surge occurred, there were some small amplitude The disturbance waves are formed from the stable flow field, and their influence is very weak. It is almost impossible for the pilot to intuitively feel it. However, if there is no interference with the working state of the engine at this time, these disturbance waves will continue to strengthen and start at the beginning. At the end of the process, it turns into a rotational stall and then develops into a surge, so I call these disturbance waves a surge precursor. Therefore, my idea is to detect these surge precursors through a series of sensors and waveform processing technology, and then add additional disturbances to the flow field to suppress the formation or development of stall precursor waves and delay the occurrence of rotational stall. When Chang Haonan talked about this, the other people looked at him as if they were looking at a monster. It is equivalent to a person saying that I not only want to accurately predict the weather at a certain time six months from now, but I also want to control the weather at this time through technical means. ?This theory sounds a bit like extreme tightrope walking, let alone its direct application in the engineering field. Safety margin is almost the core element of engineering design, but Chang Haonan actually directly stated that he wanted to keep the safety margin to the minimum while ensuring the highest safety... ??I can only take a breath of air. As for the boss, he once again showed how extraordinary he is. ?Yang Wei touched his chin and pondered for about half a minute, and the first reply he gave was: I have actually done some research on this surge prediction before. ?This time it was Chang Haonan''s turn to be shocked. "You are too young, so you may not know, but many elderly people in the 611 Institute know that around the 1990s, because they were all engaged in civilian industry, I didn''t think it was interesting, so I very seriously considered working abroad. " ?Chang Haonan was even more shocked. ?This TM must be retained, otherwise the loss will be incalculable... "Anyway, during that time, I paid attention to some cutting-edge research done by foreign universities, which was... quite far from engineering. Two professors named Moore and Glazer proposed an axial flow compressor entering a rotating stall. The state model includes three physical quantities: flow coefficient, pressure coefficient and rotational stall amplitude, which is generally called the MG model. " What was said later did not exceed Chang Haonan''s expectations. ?This MG model is basically the starting point for all surge prediction research. After a short pause, Yang Wei continued: "This model is relatively easy to use in academic research and small experiments, but when it comes to the engineering field, three physical quantities bring three systems of partial differential equations, and the degree of nonlinearity is very high. I once asked a friend who specializes in mathematics After consultation, he said that I can use one called..." Galerkin method? All this has entered Chang Haonan''s rhythm. "Yes, the Galerkin method, and then select a cubic curve as the characteristic curve, convert the system of partial differential equations into a system of ordinary differential equations and then solve it. But I personally tried it and found that the amount of calculations involved is unimaginable. Moreover, the accuracy of the final results is not high. In short, there is no application potential so far..." After listening to this introduction, Chang Haonan felt a little ashamed and said to himself that you cant call this a little research at all. You have already done half of my work... ?But on the surface, he just coughed twice: Actually, the MG model you just mentioned is the starting point of my entire idea. Its just that I have recently produced some research results on numerical solutions to strongly nonlinear partial differential equations, which can be used in the optimization and subsequent solution process of the MG model. ??Yang Wei, who had been calm and composed just now, finally couldn''t hold himself any longer. Do you still have research on mathematics? (End of this chapter) Chapter 310 Two plans of J-10! (For the leader [die Chapter 310 Two plans for the J-10! (Add 15 more updates for the leader [the free agent]) Generally speaking, even if people with an engineering background are good at mathematics, it is often at the application level, and few people are also good at researching mathematics. In fact, Yang Wei himself has quite good mathematical skills, but when it comes to cutting-edge topics in the field of numerical computing, he still needs the assistance of some experts. Its not worth talking about any research... Chang Haonan wiped the slight sweat on his forehead because he had just spoken for several long paragraphs: Many parts of my research process involve solving nonlinear partial differential equations, but there are currently no very easy-to-use tools, so I tried to see if I could develop one myself. If you really want to talk about it, because there are many assumptions and experience summaries in it, the serious mathematics community still does not admit that our kind of research belongs to mathematics..." ?Yang Wei was speechless for a moment. Looking at the sincere face in front of him, a young man who was more than ten years younger than himself, he suddenly felt that he had met his match. ?The other people looked at Chang Haonan with complicated expressions, and then at their deputy chief engineer next to them. ??The latter, after all, had graduated from junior high school and entered university directly. As a result, he did not do well in the exam and only went to Hokyong Institute of Technology... Ahem Lets not mention this. Lets continue talking about your modification and solution methods for the MG model, as well as the overall plan. ?Chang Haonan nodded and turned the PPT to the next page. The new model I modified is not much different from the original MG model in the derivation process. I only need to modify the pressure rise coefficient through the compressor. The biggest difference lies here. ?Chang Haonan pointed to a box with a cross in the middle behind the compressor. ?After realizing that his artistic level was indeed difficult to save, Chang Haonan gave up on refining his drawings and instead used more schematic diagrams. The main focus is to maximize strengths and avoid weaknesses. "This is a component that I temporarily call a closely coupled control valve, or CCV. We assume that there is no gas mass storage between the compressor outlet and the CCV, so a pure pressure drop can be created at the compressor outlet for simulation The impact of our main control stability control strategy on the entire engine operating state. Speaking of this, Chang Haonan released the improved derivation process of the MG equation step by step below. ?\''=(W/H)/(4B^2)(/W-1/Wt())H/lc ? J\''=J(1-(/W-1)^2-J/4-1/^24W/(3H)) In this formula, when J=1, it can represent a pure rotational stall and there is no risk of evolving into surge. When J=0, it is a pure surge, which is what we most need to avoid. condition" Obviously, Yang Wei kept up with Chang Haonan''s thoughts throughout the process and recorded it quickly in his notebook. Although aircraft design and aero-engine design belong to two different sub-disciplines, for a top boss like him, after mastering one of the fields, he will naturally have a certain understanding of the other. Moreover, the maneuverability of third-generation fighter jets, especially some third-and-a-half-generation fighter jets, has shown leaps and bounds. The propulsion system needs to withstand much larger flight attack angles and sideslip angles than before, and the air intake distortion problem it faces is compared to The problem is much more serious for second-generation fighter jets, which also puts forward higher requirements for the design matching of aircraft and engines. It has become an irreversible trend for aircraft designers to also understand engines. As one of the leaders, Yang Wei was naturally prepared for this change. After he stopped writing, he lowered his head and thought for a few seconds before raising his head: "There is a problem here, because the problem of rotational stall must be taken into consideration, so even under certain working conditions, the compressor speed cannot be set to Therefore, the tangential velocity at the center radius of the compressor rotor is no longer constant. How to solve this problem? " ?Chang Haonan looked at the part where the other party pointed out the problem: Re-establish a dimensionless constant =UdT/R, so that the dimensionless constants of the compressor inlet and outlet channels can be obtained through very simple calculations..." At the beginning, others can follow the ideas of these two people, but later on they can only pick out some parts that they are good at and listen to them. After confirming that there were no problems with the aerodynamic stability model, Chang Haonan moved on to the next part: After completing the engine modeling, the relevant parameters can be determined through experimental data to fit an engine operating curve that is as close to the actual situation as possible, so as to accurately predict the engine instability phenomenon. "I see" After the theoretical part is solved, the remaining problems will be specific to engineering practice. ?Chang Haonan closed the PPT that had been placed on the last page and started the final summary. There are not many websites that can search for pictures these days, and he can''t find photos of the AL31FN, the target engine used by the J-10. As for the turbofan 10, there are not even complete drawings. There is really nothing to put on it. of: "For example, inside the inlet duct, to detect the initial disturbance of compressor instability, the current preliminary plan is to use the harmonic Fourier coefficient method and the traveling wave energy method. As for which of their specific effects is better, it will only be tested at that time. Just found out. "In addition, active stability control, in the final implementation of the control step, still needs to be modified on the engine. The closely connected control valve mentioned in the previous modeling process is designed and added to the back of the compressor. It is ideal. Under such circumstances, this system can make the compressor instability state manifest as a rotational stall at most, without developing into surge. It can even change the compression characteristics of the compression system through the closed-loop control of the CCV, thereby... changing the compression system The stable operating range extends beyond the surge boundary and remains stable for a period of time! ?Yang Wei could remain calm in the previous part, but this last part made his right hand shake violently, and he almost couldn''t hold the pen in his hand. In other words, through the design of the aircraft control system and limited modifications to the engine structure, the engine''s working limit can be exceeded! ?Although Chang Haonan said that this kind of chicken-blooded state should not be maintained for a long time, in the ever-changing air battle, the power advantage, even if it only lasts for one minute, can sometimes determine the outcome. But the only problem now is... The engine needs to be modified. The functions of this system are indeed very tempting... ?Yang Wei closed the notebook and slowly leaned back on the back of the seat, with a deep regret in his tone: However, this tightly connected control valve...AL31FN is Liulikas design after all. Even if he cooperates with us, considering a series of issues such as project docking, it may be difficult to produce a finished product in a short time. ?However, Chang Haonan naturally thought of this problem a long time ago and waved his hand directly: It doesnt matter. It doesnt have to be done in one step. It can be divided into two steps. "When using a Russian-made engine for the first flight, we can remove the CCV of the hardware and keep only other parts. First install a youth version, which is a simplified version, and use the most basic and automatic way to adjust the throttle valve to adjust the intake air. Intervening according to the situation, although the effect is slightly worse, at least it can expand the engine envelope to a large extent and ensure flight safety under extreme conditions. " When the domestic third-generation high-thrust turbofan engine matures and is replaced, the full version of the active stability control system can be used. ?This explanation stunned Yang Wei: "Your system has very high requirements for flight engine matching. Let''s not say whether the turbofan 10 can be developed before the J-10 is officially put into service. Even if it is developed, the design of the inlet will probably have to be significantly changed... " Chang Haonans answer was even more self-liberating: Its just a big change! "You can refer to Xiao... uh, what we did when we were working on the August 3rd Project, we first built two non-full-state prototypes using the existing design, and evaluated and tested the overall situation of the aircraft structure, aerodynamics, flight control, etc., and then waited until After the domestic matching engine is released, we will come up with a second version of the design with a modified intake duct. In this way, we only need to test the power and active stability control system, and nothing will be wasted..." At first, Chang Haonan wanted to say Xiaolong out of habit. After all, it was the most classic model that had its air intake changed during the test flight. However, considering that the project had not yet been completed at this time, he changed his mind midway. . ?Yang Wei, who was sitting opposite, had a look of disbelief on his face ?Hello guys, our 611 Office asked you to help with Project No. 10. This is great. You can directly show your sense of ownership and change the progress of our entire project, right? (End of this chapter) Chapter 311 Boss, be my deputy! Chapter 311: Boss, be my deputy! Logically speaking, as one of the main persons in charge, it would be unreasonable for an outsider to intervene in one''s own project like this, and the idea of ??building two versions of the prototype sounds a bit crazy at first glance. However, as Chang Haonan just said, the first version of the design can actually verify the overall aircraft and most of the subsystems. The second version only needs to check for deficiencies and fill them in, and it will not cause too much waste. The final design If the full version of the aircraft can really achieve active stability control as Chang Haonan said, the benefits will be huge... ?Yang Wei admitted that he was a little tempted. ?Seeing him bowing his head in thought, Chang Haonan knew clearly that this was a sign of a person in tangle. So he added a heavy chip to the opponent''s inner balance. As for the second version of the design of Project No. 10, I actually had contact with the comrades from Guizhou Airlines at the beginning of this year. ?Sure enough, topics related to the project quickly aroused Yang Wei''s interest. He raised his head and looked at Chang Haonan with some confusion. Guihang is a brother unit supported by the 611 Research Institute and the 132 Factory in Chengdu, so he is naturally familiar with it, but so far it has only been able to produce some two-seater JJ-7s, both in terms of design and production capacity. , none of them have the possibility to participate in Project No. 10. "At that time, they wanted to develop a new generation of advanced trainer aircraft based on the JJ-7. I gave them some support in terms of overall plans and simulation technology. If nothing else happens, after the basic design is come out, I will prepare this An attempt was made to apply the DSI air intake in this project. After entering the 1990s, the aviation industry painfully reflected on the experiences and lessons of the previous two or three decades and summarized a set of relatively low-cost and low-risk technology verification models. Except for particularly critical and special technologies like digital telex, which require a specially built J-8IIACT for verification, most new technologies can be verified in the development process of existing models in small steps to share risks. . In the previous life, due to a series of technical development and organizational management reasons, this principle was not well implemented. There is no other way. There are too few projects and the development progress is slow. We can only seek to accomplish all the results in one battle. ?For example, the J-10 has no choice but to intensively apply more than 60% of new technologies, which is actually quite risky. But now, due to the role played by Chang Haonan, the August 3rd Project was successfully finalized, and more importantly, the development of aviation technology was streamlined, allowing this principle to finally be carried forward. ? Including the J-10, which has just completed final assembly and has not yet made its first flight, subsystems and technologies such as radar, power supply, and integrated front windshield have all been verified in advance on the J-8C. Therefore, although the emergence of Chang Haonan has greatly accelerated the development of Huaxia science and technology, especially aviation technology, this not only did not lead to an unstable foundation, but also reduced the risks of many projects on this timeline. Chang Haonan is now talking about applying DSI air intake technology on an advanced trainer aircraft that has no difficulty in development. It is obviously to prepare for the second version of the design of Project 10. DSI air intake Yang Wei was stunned for a moment by this term, and then he reacted: Oh, you are talking about the convex hull inlet, right? At the beginning of the 1990s, it was even difficult for China to systematically track the cutting-edge international aviation technology, so there was also a lack of a unified idiomatic translation for these new terms. Chang Haonan nodded: Yes, these two translations mean the same thing. This is a design that has been highly discussed in the past two years. Research in the United States has just begun. An F16 was specially modified to verify this thing. ??Although no relevant projects have been launched in China at this time, it is naturally impossible for people like Yang Wei to turn a blind eye to this: "It is said that the JSF, another fourth-generation aircraft they are currently developing, plans to apply this technology. Are you... sure you can be ahead of the Americans? And if the improved version of the JJ-7 has air intake in the nose, are you ready? How to install the convex hull, uh, the DSI air intake? " Of course its not the nose air intake. When I communicated with comrades from the 648th Research Institute before, the overall plan has been changed to a dual-intake design under the ribs. Seeing that the other party had shown strong interest, Chang Haonan shook his head and continued to explain: The DSI air inlet utilizes the waveriding principle and the characteristics of the conical flow itself to blow out the boundary layer of the fuselage by relying on the pressure gradient on the compressed curved surface. This eliminates the need for boundary layer partitions, relief systems, and bypass systems. Several parts are lighter than ordinary air intakes and have a smaller radar reflection area. As long as they are designed properly, the performance will definitely be greatly improved. " "The only problem is that this kind of air inlet is completely fixed, so the optimization range is relatively narrow. However, considering that the aviation force does not need Project 10 to undertake any high-altitude and high-speed interception missions, it only needs to choose the transonic speed of Mach 0.7-1.5. Just optimize the speed section..." This is another benefit brought by the smooth finalization of the J-8C into service. The J-10 does not have to do everything, it only needs to be responsible for the parts that a normal third-generation aircraft is best at. "However, just analyzing this kind of thing on paper is not very convincing. After all, Project 10 is a new advanced training aircraft project. I plan to use it as China''s F16ICON to meet the training needs of the aviation force. , it can also be regarded as a technical verification for the subsequent improvement design of Project No. 10. ?Historically, the verification of the DSI inlet was originally completed on the Xiaolong, but at present, the Pakistan Air Force seems to be very satisfied with the J-7F, and it is likely to have some impact on the advancement of the subsequent Xiaolong project. ? And even if everything goes well, it will take 1998 for the two countries to complete the debate on technical and tactical indicators and finally transfer the project to the development stage. ?In any case, Chang Haonan couldn''t afford to wait for a year, so he had to use his subjective initiative and launch a project to verify it. Hearing this, Yang Wei, who was sitting opposite, finally realized ??Oh, no wonder Xiaozi just said that he wanted to make a major change. The co-author even helped us choose the form of the air intake for the second version of the design... You have figured it all out, right? At the end of the day, I am Party A and you are Party A? However, although there was a suspicion of cheating, Party B, who was originally only invited to assist in the structural and aerodynamic analysis before the first flight, actually sent two such gift packages, and both of them were the J-10 as a medium-sized single-engine fighter. Much needed partsreliability upgrades, engine envelope expansion, and weight reduction. ?Its really hard to refuse. After a battle between heaven and man, he decided to temporarily forget his dignity as Party A. Okay, what do we need to do with the 611? I mean, all that you just said, active stability control, and the DSI air intake. ??Yang Wei pressed out the tip of the ballpoint pen again and opened the notebook. Step by step, the DSI air intake can be done a little later. Concerning the follow-up plan, Chang Haonan has already prepared the draft: "Both the instability prediction system and the stability management system require a large amount of data support, and I plan to complete the relevant algorithm and control rate design in one to two months. It is impossible to always run both ends, so now I need you to send Several people who are familiar with the overall design of Project 10, especially the flying hair matching design, came to assist me. "for how long?" Even though Yang Wei thought he was used to the outrageous behavior of the guy in front of him, what he heard in his ears still made him feel a little unbelievable. One to two months. ?Chang Haonan was used to dealing with this kind of scene when he was working at the 83rd Project: This way, without delaying your progress, you can integrate this system into the flight control before the engine ground test begins. The reason why Chang Haonan was in such a hurry was because as a reborn person, he knew through later declassified information that the reason why it took more than a year from the offline of the J-10 prototype No. 01 to its first flight was not mainly because of the rumors. Guangzhou''s three drops of oil (the inspection after the discovery of the three drops of oil only took about ten days), but due to two blade damage problems occurred during the ground test, which took a lot of man-hours to repair, and finally adjusted the air intake Some details were passed. ??If this incident can be avoided, the first flight of the J-10 can actually be advanced to the second half of 1997. Of course he can also go to the 611 Institute and find ways to perfect the relevant designs in advance. But doing so also takes a lot of time. In contrast, it is better to develop this active stability control system in advance to avoid the two blade damages. In this way, not much time will be wasted, and the designers of the 611 Institute can discover and solve the problem by themselves. After all, there are some things in the engineering field that you can only appreciate if you miss them. ??And today, Chang Haonan no longer needs to provide himself with enough prestige through several successful problem analyzes and improved designs as he did when he first joined the 83rd Project. ? Putting your name there is enough. ?For example today, he just made a PPT, combined with a simple narrative, which was enough for the 611 Office to take his suggestions into consideration. ??Yang Wei certainly doesnt know what will happen to the J-10 in future tests, but he knows very well that the system developed by Chang Haonan can provide huge room for fault tolerance. In the worst case scenario, it may even give the entire project a chance to come back to life. ??For this reason, it wont hurt even if the testing progress is delayed for a few months. Now, the other party actually said that there is no need to waste time... "How about this." ??Once something like really fragrant happens for the first time, there wont be any psychological burden the second time, so Yang Wei quickly made a decision. Of course, the one who is most familiar with the overall design of Project No. 10 is President Song, but he has to stay in Rongcheng and be responsible for managing the president. The next one is me. How about I stay here and be your deputy? ??It''s all for Project No. 10, what about Party A and Party B, so narrow-minded! (End of this chapter) Chapter 312 IL-78 coming to China Chapter 312 Il78 who came to China As an unknown ordinary senior engineer in his previous life, Chang Haonan was able to find a big man like Yang Wei as his deputy after just one year of restarting his life. Even though it was only temporary, Chang Haonan felt secretly happy for a long time. Over the next month, the software part of the active stability control system gradually turned from idea to reality at an unprecedented speed. During this period, the world was also in turmoil. ? ? In the eastern part of Qingtang Province, 1,500 kilometers away from the capital, four white-painted J-8C fighter jets flew across the sky over the Gobi Desert at high speed. Captain Wang Wei, pilot of the 25th Regiment of the 9th Naval Aviation Division, is sitting in the cabin of No. 12 aircraft. While maintaining formation flying with his teammates, he also has to identify landmarks through the cockpit glass on both sides. For the Chinese aviation force, in this era when there is no domestic navigation system, even a long-distance transfer flight that sounds very simple is very difficult to actually execute due to the positioning issues involved in unfamiliar airspace. The naval aviation, whose mission attributes are different from those of the air force, is even weaker in this regard. ? Among other things, it has been seven years since Wang Wei graduated from aviation school in 1990. This is the first time he has flown deep into inland airspace. Therefore, even though the experienced division commander Tang Yiping led the team, the other three pilots were still a little nervous. They flew from Qiong Province to here without any landing. The fuel level was already tight, so there must be no mistakes in navigation and positioning. Whats puzzling is that although there was no in-flight refueling during the whole process, all four aircraft were equipped with in-flight refueling pipes. ?This non-retractable design has a simple structure, but if it is not refueled, the resistance it brings will actually shorten the voyage. Fortunately, what they were most worried about did not happen. After continuing to fly in the same direction for about 15 minutes, an unclear but still coherent voice came from the radio, indicating that the base had captured their signal and asked them to adjust their position. 145 direction and began to descend in altitude. The airport has only one runway, so you have to land in two batches. The tower commander said at the end. ??According to the 1984 Warsaw Pact-organized Shield 84 exercise, a runway could take off 72 fighter jets in 5 minutes. ??But this kind of high-end gameplay is not necessary in peacetime, and secondly, it is basically unthinkable for the Chinese aviation force at this time. So Wang Weis No. 12 aircraft and his wingman No. 13 aircraft need to make an extra circle over the airport. It was this circle that made him notice that in the parking area in the distance, there happened to be two huge transport aircraft being slowly pulled into the hangar. Wang Wei, who is familiar with almost all Chinese and foreign air force equipment, quickly determined the model: Are there two more IL-76s here? This airport, located in Qabqia Town, Gonghe County, does not have permanent aircraft on weekdays. There is only one establishment at the regiment level, but the actual scale is only stationed at the battalion level, so all aircraft must have transferred from other places. . At this moment, he suddenly had a feeling that this was definitely not the "long-distance transfer flight training" mentioned by the division commander at the training mobilization meeting before takeoff. Moreover, look at the side, there are power supply trucks and gas supply trucks parked next to two hangars. There must be other aircraft present. It looks like the battle is huge this time. Zhao Yi, the pilot of aircraft No. 13, also replied. ?At the end of the 1990s, joint training of multiple aircraft types required approval at the military district level before it could be carried out. What''s more, those two IL-76s definitely do not belong to the naval aviation. There are only 14 IL-76s in China, all of which belong to the 19th Air Force Division stationed in Hubei Province. So this could be an inter-service exercise ?Wang Wei was thinking this way in his mind. That would be even more shocking. But for a pilot like him who wants to make progress, it would definitely be a good thing if he has the opportunity to compete with his colleagues in the Air Force. Its just not clear what these two transport planes are for... ?At this time, instructions came from the radio for them to prepare for landing. The two had no choice but to return their attention to the cockpit, adjust the flight direction and attitude, and descend to prepare for the approach. After a smooth and light landing, ground crew quickly followed up and took away the parachutes thrown away by the two planes. The two planes entered the taxiway and drove slowly to the parking area not far away. As Zhao Yi speculated just now, Wang Wei also quickly saw the situation inside the other two hangars from the ground point of view. Parked there were a strange-looking Y-8 with a big nose and an ordinary-looking J-H-7. The four J-8Cs in their group also stopped in the designated area according to ground guidance. Four 212 jeeps followed closely and towed the plane into four other hangars after the pilot got off the plane. Commander, we flew 2,000 kilometers to get here this time. Im afraid its not just a simple transfer training, right? ?Wang Wei tentatively asked Tang Yiping, who had just taken off his flying helmet. The latter took the flight record handed over by the airport staff and prepared to sign it, then turned his head and showed a smile: Its a good idea. Youll know about it soon. Come on, come to the meeting with me. After saying that, he walked straight to an inconspicuous small building next to him. ?While passing the two hangars where large airplanes were parked, Wang Wei couldn''t restrain his curiosity and took a serious look inside. Then he instantly realized that there was something wrong with his judgment just now. ??This aircraft has three white pods hanging under the outside of the wing and on the left side of the tail. ?Although he has never actually carried out aerial refueling, as a top student in aviation school, he once simulated this process in a trainer aircraft and an H-6, and he also has some understanding of the relevant equipment. Are these two IL-78s? ??The shocked Wang Wei instantly exclaimed. He was very convinced that neither Chinas air force nor naval aviation had ever had such strategic-level equipment before. And if you take a closer look, you will find that one of the two aircraft in front of you is painted with a sky blue fuselage and white belly paint commonly used by the Chinese Air Force, while the other one is actually wearing a somewhat mottled Soviet Air Force paint. , but the national flag on the vertical tail was painted out in a rather sloppy way. In the blink of an eye, he also figured out why his four planes had to carry oil receiving pipes, a piece of equipment that had never been used before... This is to carry out special training. If there is aerial refueling, it must involve ultra-long-distance flight, otherwise it is completely unnecessary. As for things related to their 9th Haihang Division and the need for ultra-long range... It can only be related to the South China Sea. ?Wang Wei became excited instantly. (End of this chapter) Chapter 313 Multiple arms unite for embankment building action! Chapter 313 Multi-arms unite for embankment construction operation! ??When Tang Yiping took Wang Wei and three other people into an underground conference room, there were already many people sitting inside, and even the circle of chairs placed against the wall was almost full. Fortunately, as front-line pilots, they will always have some "privileges", so there is still enough space on the edge of the long conference table. ?So a few people quickly took their seats, then placed their flight helmets neatly in front of the side, and took out notebooks and pens from the backpacks they had brought with them to prepare for recording. On the podium, a senior colonel officer in uniform of the Air Force was facing a laptop computer, sorting out materials unskilledly. When he saw that all the participants had arrived, he finally raised his head. ?Wang Wei remembers this person. I saw each others photos at a study meeting within the army. 899196604091904/10012130/8d5390492ba2c917504b29edf071cdeag2bTMj2eP2NcRv****g"> ??It''s just that the specific deeds of this person were not mentioned at the time. He only said that he had studied tactics and practiced hard in the process of changing to new equipment. It is difficult to extract any valuable content from these clichs alone. Division Commander, this seems to be the one who was commended by the whole army before... He whispered to Tang Yiping next to him for confirmation. "That''s right, Deputy Commander Zheng Liangqun of the 1st Air Division. He was also present when we picked him up at the beginning of this year. I guess... he will be promoted to division commander soon." I dont know why, but Wang Wei heard a little envy in the latters tone. ?Mingming Tang Yiping had already been the division commander a few years ago. He originally wanted to ask again, but suddenly he heard an officer announcing the beginning of the meeting, so he had to give up temporarily. Zheng Liangqun on the podium cleared his throat and looked at the dozens of mid-level and senior officers sitting densely under the stage. If he had to describe how he felt now, it would be "refreshing". Although he has received many commendations in recent months and held several advanced deeds report meetings, he even led a team to the northwest a few days ago to participate in the first open red-blue confrontation exercise organized by the Chinese Air Force. The future is bright. But he has always had a regret, that is, although sometimes he tacitly agrees on and off the stage, in most cases, he is unable to clearly explain the results he achieved over Kashmir. Let alone tell people the whole process in detail. But today is different. ??Although this underground conference room was dark and cramped, and there were not many participants. ??However, when he was preparing the speech, he received an order from his superiors, indicating that there was no taboo on the topic this time. Finally I can satisfy my desire for expression that has been suppressed for months. "Hello comrades from the Navy and Air Force, my name is Zheng Liangqun. This time I am here to share with you some of my experiences in training, exercises and combat based on my personal experience of leading the troops to modify the new J-8C fighter jets in the past few months. lesson" ??It may seem like an ordinary opening statement, but Wang Wei captured a key word from it Combat? ??This is not a word that can be said casually, especially since the other party is a star figure in the military aviation in recent months, and it is even more impossible for him to make such a low-level mistake... First, lets take a look at the J-8C flight envelope chart sent to us. Zheng Liangqun called up several pictures put together on the screen. The complicated lines on them drew the envelope of the aircraft at several typical altitudes. There are many such pictures in the flight manual, but even for pilots, in most cases there is no need to memorize all the envelopes at an altitude of one thousand meters - that is the task of the flight control computer. "I can assure all comrades here that you can boldly squeeze the aircraft to the edge of the envelope without worrying about the stability of the engine or wing operating system. In fact, from my own experience, The envelope of this aircraft at medium and low altitudes, especially at an altitude of 3,000-5,000 meters, is even somewhat conservative..." "During exchanges with brother units equipped with Su-27 aircraft, I found that it is really difficult for the J-8C to gain an advantage against mature third-generation aircraft at altitudes below 12,000 meters. However, the advantage of the J-8C is that it does not need to rely on any imported aviation materials, fuel and equipment. , the ground crew is also more familiar with our own aircraft, and the result reflected in the exercise is that the dispatch rate is almost three times that of theirs..." "The radar of the aircraft is the part I want to emphasize. Its detection range of clean airspace at medium and high altitudes is slightly inferior to that of the Su-27, but its downward-looking ability below 5,000 meters is much stronger, and it can detect ground clutter and sea waves. Clutter also has better filtering capabilities. The resident engineer of Dianke Group introduced to me that this is because of the application of a brand-new filtering algorithm... In short, this should be more meaningful to comrades in the naval aviation..." ? ? " Due to the oversized wings of the Thunderbolt 11, its range performance at medium and low altitudes is poor, but its advantages will be reflected after reaching an altitude of more than 15,000 meters. This was demonstrated when Comrade Chen Jialiang, Chief of Staff of the Division, and I shot down the Triple Sonic Squadron. The MiG-25 played a very important role in combat..." ?Wang Wei turned his head again and looked at Tang Yiping next to him. ?Although I had guessed it through some clues just now, when someone else actually said it personally, the feeling was completely different. And the one that was shot down was the MiG-25. ?It goes without saying that this model is legendary. Faced with the overwhelming superiority of the coalition air force in the Gulf War, it was still able to come and go like the wind. The shock that such a plane was shot down in an understatement was absolute to Wang Wei. He finally understood why his teacher''s tone just now was filled with envy. This is the first victory achieved by the aviation force in more than 30 years. Isnt it something to envy? Zheng Liangquns report lasted about an hour. For the four pilots of the 9th Hainan Division, it has indeed benefited a lot. Due to problems with the organizational form and training resources of the naval aviation forces, there is indeed a certain gap between them in terms of technical and tactical levels compared with the Air Force''s fist units such as the Air Force Division. Whats more, others have practical experience. After the report, Zheng Liangqun left the meeting first, but the whole meeting had no intention of ending. A few minutes later, a naval aviation leader stood on the podium, looked down and slowly said: Comrades, next, I will introduce the background and basic situation of this multi-arms joint exercise. "Just a week ago, the British Navy announced that it would form a task force code-named Wave 97 to deal with what they called ''something happened on Hong Kong Island,'' and would also hold a joint naval and air exercise with Annan near Nanci Island. This is a naked provocation! The major general who spoke clenched one hand into a fist and knocked twice on the table in front of him. At the same time, the PPT projected on the screen also switched to an introduction to the Hailang 97 fleet. A total of 34 ships, including one cruise ship and one aircraft carrier. For the Chinese Navy in this era, it is indeed quite large. Fifty years ago, our predecessors opened fire resolutely in the face of the Amethyst, ending the history of imperial powers engaging in gunboat diplomacy against us. And now, at this moment when everyone is watching, we cannot let the British plan succeed! "So, according to the instructions of the superiors, this time, our navy and air force will cooperate. The main task is to prevent this wave 97 task force from sailing into the waters outside Hong Kong Island when we are not prepared. By the way, it can also be used by the Royal Navy. Lets take a look and let them realize the reality. Its already dark on the empire where the sun never sets. A somewhat sudden joke finally relaxed the tense atmosphere in the venue. "30 kilometers to the north of this airport is Qinghai Lake, which can simulate sea surface conditions to a certain extent. We have gathered comrades here from all over the country today, and we plan to conduct a targeted special project in the next few weeks. Special training. Since the British called the fleet they came to stir up trouble with, the troops came to cover it up with water and earth. The code name of our mission is...Operation Embankment! Additional updates for the leader [who is just a walk-on] (2/5) (End of this chapter) Chapter 314 Shave the Britishs heads! Chapter 314: Shave the Britishs heads! For Wang Wei, everything was explained now. The naval aviation force was urgently requested to relocate to the Gobi Desert, the IL-78 aerial tanker that didn''t even have time to change its paint, the "big-nosed" Y-8 that looked like it belonged to a special aircraft unit, and the aircraft whose main business was maritime The attacking JH-7 It is a perfect configuration for dealing with a fleet 1,500 kilometers away from the homeland. The only problem is that the number of each model, especially the J-8C aircraft, which is the main anti-aircraft force, is relatively small. ?This makes it difficult for him to be optimistic. ?It is the tradition of the Chinese aviation force to attack more with less, so Wang Wei has nothing to fear. This is just a high-tech war. In many cases, problems cannot be solved without fear. ? Judging from the fleet configuration just projected on the screen, the fleet sent by the Royal Navy this time has only one light aircraft carrier, the HMS Excellence, which can carry about a dozen Sea Harrier FA.2 fighter jets. However, even so, this is still a threat that cannot be ignored. This latest model of Sea Harrier is equipped with Blue Vixen radar and AIM120 active mid-range bombs, although due to the poor performance of the aircraft itself, it is difficult for this combination to perform as well as the F15 The effect is good, but for the Chinese Air Force, which has not even deployed semi-active mid-range missiles, the advantage still exists after all. Especially in the current combat scenario, the opponent''s fleet is still on the defensive. ??Sea Harrier aircraft may seem a little inadequate as an offensive method, but the task of providing air defense umbrellas to the fleet can still be completed. ? Relying on radar with a longer detection range and better flight performance, it is not completely impossible to defeat semi-active bombs against active bombs, but the basis of all this is that the quantity cannot be at a disadvantage. At this time in 1997, the Air Force''s Su-27 had an absurdly low readiness rate and still did not have the ability to transition. What''s more, cross-service cooperation was an almost new topic for China. Simple cooperation such as aerial refueling was still needed. If the fighters really want to cooperate with each other, there might be some trouble. So if the naval aviation is to be used as the main force in this embankment building operation, then the only ones that can be used for air control are their four aircraft... The only solution is probably to cut in from high altitude? ??Wang Wei simply drew a tactical diagram on the notebook in front of him. ?Although he is still only a captain, he is usually happy to think about some issues that only more senior commanders would think about. Judging from the advantageous performance range of the equipment on both sides, if they enter the battlefield from more than 20,000 meters, then descend to conduct a simulated attack and then return, the opponent will indeed be helpless - the Sea Harrier with bombs can hardly climb to More than 12,000 meters, and it is impossible for any air-to-air missile to make up for the height difference of nearly 10,000 meters. Just do this with the J-8C, which cannot mount anti-ship missiles, and the actual threat it brings is actually not high. Just when Wang Wei''s brainstorming reached an impasse, the commander on the podium finally talked about the specific combat plan. "The instructions from our superiors did not specify how we should deal with this fleet. So, my understanding is that we can do everything except not fire." So, our plan is to learn from the advanced experience of the Red Navy aviation and let the fighter formations fly at ultra-low altitudes to directly shave the heads of the British aircraft carriers! With one sentence, the pen tip in Wang Wei''s hand directly scratched the paper, leaving a black mark on the paper below. "grass" Very good, very wild idea. ?Wang Wei, who had just been thinking about entering the venue at high altitude, thought to himself with some embarrassment. The so-called shaving of ones head means shaving ones head quickly from a very low height, which can give people a strong sense of oppression. ?However, even the Soviets are not always able to successfully break through fleet defenses and achieve this step. "The area where Britain and Annan are conducting exercises is 1,470 kilometers away from Lingshui Airport in Qiong Province. Considering that we need to keep flying low in the second half of the journey and may be able to deal with it for a period of time over the opponent''s fleet, we need comrades from the Air Force. Establish an aerial refueling area here." The pointer points to a long strip of area on the map about 650 kilometers south of Qiong Province. Aerial refueling area. In the past, this was a term that Wang Wei had only seen in books describing foreign military operations. ??Now it actually appears in their own mission briefing. "We will send a Y-8J warning aircraft and a Y-8X maritime patrol aircraft to approach the target area from a 60-degree direction and an altitude of 8,000 meters to attract the attention of the opponent''s carrier aviation. However, the Y-8 platform does not have the ability to receive refueling in the air and is subject to It is difficult to defend themselves after a threat, so they will end up staying about 200 kilometers away from the opponent''s fleet, retreating before the enemy carrier-based aircraft arrive, and delaying it for as long as possible." The main attack mission is carried out by four aircraft of the 9th Hainan Division. One of them needs to carry a photo reconnaissance pod to record the entire process during the low-altitude flyover. Hearing this, except for Tang Yiping, who most likely knew the plan, the other three pilots looked at each other, and then they saw the eagerness to try on each other''s faces. Obviously, everyone wants to do this kind of work of showing their face by themselves. ?Of course, the premise is that you can really break into the sky above the opponent''s deck. If you get entangled halfway, you will be the one who is embarrassed. "Considering the complexity of this mission, we have reached cooperation with two universities and the 14th Institute of Electronics, and used existing mature technology to temporarily develop a high-altitude airship used as a communication relay, so even if you keep Flying at low altitude, you can still maintain contact with the command center throughout the entire process..." At this point, the mission commander was silent for a few seconds to give others some time to think and record. Then, comes the real highlight of today: In addition, during the mission, you will also receive full accompanying cover from an electronic warfare aircraft. ?This sentence truly stirs up a thousand waves with one stone. Some people even exclaimed: Electronic warfare aircraft? The Chinese Aviation Force is indeed equipped with relatively simple electronic warfare aircraft such as the HQ-5 and H-D-5, but regardless of their combat methods, flight performance or range, it is impossible for them to "accompany" the J-8C four-aircraft formation throughout the entire process. Yes, this is the latest model recently developed by our military industry department. It should still be in the stage of exploring tactics, but now that the British have caught up, its time to use them to test the effect. "According to our previous tests, after turning on the jamming, this JH-7 can disable most C-band search radars and X-band fire control radars that are not particularly powerful. Therefore, it can greatly reduce the British fleet''s Reaction time." "From what we have obtained so far, the combat ships in Wave 97 include one aircraft carrier, two Type 42 destroyers, two Type 22 frigates and one Type 23 frigate. The rest are transport, landing and supply ships. Among them, Type 22 and Type 42 are both early versions and pose relatively little threat to the formation. " "Of course, this does not mean that we can sit back and relax. It is always people, not equipment, that determine the outcome of a war. This also applies to our opponents. If we take it lightly because we have superior equipment, we may still be defeated. Others have seized on the flaw, and now the comrades are gathered in this Gobi Desert for training, in order to make everyone familiar with the tactics of this operation faster..." ?While speaking, the PPT on the screen was also switched to the next page. ?The above is a JH-7 that looks ordinary. ? ? Its just that it uses a black radome similar to the new batch of J-8C, instead of the green one of the old J-H-7, and the front windshield of the cockpit has also been changed from a three-piece to a one-piece one. It was the one that several people had just seen outside. Of course, it can be seen from the picture that the antenna and wing design are slightly different from the old model, and the cannon seems to have been cancelled. ? This kind of dedicated electronic warfare aircraft, which is on the same platform as combat aircraft and can provide cover for the entire fleet, Wang Wei has only seen in books describing foreign military operations... As a pilot who participated in the confrontation at the beginning of last year, he was 100% sure that our side definitely did not have these equipment at the time. Otherwise, it would have been taken out long ago, and it would not have been embarrassed by the opponent''s several EA6Bs. ifier ?Wang Wei touched his head. ?Its only been a little over a year, so when did all these equipment come out? For a moment, he felt that he couldnt understand the peoples army he was in... (End of this chapter) Chapter 315 See again J-10 Chapter 315 See J-10 again After Zheng Liangquns report, the meeting lasted for about an hour and a half before ending. As for the content of the second half, it is mainly about assigning specific tasks to different units, as well as the technologies that need to be trained recently. ?Of course, no matter how tight the time is and the tasks are heavy, there is still no shortage of time in this afternoon. Flight safety is no small matter, and it is foolhardy to ask a pilot who has just completed a long-distance transfer to drag his tired body to practice more. So after all the contents of the meeting were over, a mobilization dinner was arranged, which could be regarded as allowing the different units and even the commanders and fighters of different services involved in this operation to get familiar with each other. Nevertheless, after having just received such a large amount of information, everyones focus is naturally on the task to be performed. I said, this mission design, no matter whether it can be completed or not, it sounds really encouraging..." After the meeting, Zhao Yi, who picked up his flying helmet again, whispered to Wang Wei next to him, The incident of Hailang 97 was actually reported in the news a few days ago. I thought this time it would be the same as before, and we would let the surface ship force take the lead, and our aviation force could only watch..." Such whispers did not escape the ears of the division commander Tang Yiping not far away. "Before...you thought we wanted to do it before?" The latter turned around. Although his tone was still serious, the expression on his face still revealed his joy. "The J-6s we equipped in the early 1980s didn''t have enough fuel to fly anywhere. Later, even if we switched to J-8s, they would just fly around the islands closest to Qiong Province. It''s not like it is now. After one refueling in the air, the range can be counted up to 4,500 kilometers... You guys have to work hard, refueling in the air is not easy, but to complete this mission, you must practice it in these two weeks! " "yes!" Guaranteed to complete the task! On the way to the canteen, Wang Wei applied to Tang Yiping, and then he and the other two pilots took a special detour to the hangar where the IL-78 and JH-7 were parked. Since joining the flight school, the former has been exposed to aircraft for more than 10 years, but he has never seen a huge aircraft like the IL-78 before. He raised his hand and touched the radome under the cockpit in front of him. In order to retain the take-off and landing capabilities at frontline airports and in harsh weather conditions, the navigator cabin is still retained even on the latest model IL-76/78. Therefore, the radar on the nose of the aircraft is squeezed to a lower position and becomes a One of the classic features of this model of transport aircraft. Its so big... Zhao Yi, who was following Wang Wei, also sighed sincerely. He even had to raise his head nearly 90 to see the plane''s high vertical tail. Im afraid this plane can refuel our entire brigade Hearing this sentence, the ground crew wearing a large green flower camouflage and carrying a blue Air Force rank laughed twice: This aircraft can refuel other aircraft with a maximum of 65 tons of fuel. A group of 12 aircraft... Its about right. In most cases, aerial refueling cannot completely refill the fuel tank like on the ground, so an average of 5 tons of fuel per aircraft is definitely enough. It would be great if we built this plane ourselves ?Wang Wei looked around at almost a platoon of ground staff who were climbing up and down to perform inspections and maintenance on the aircraft and said. Zheng Liangquns initial report also mentioned that even if the paper performance of a completely domestically produced aircraft is lagging behind that of imported aircraft, it will still have certain advantages after comprehensively considering maintenance support and dispatch rate. In the final analysis, war is a process of attrition, and independent production means that there is no need to worry about being manipulated in the process. Whats this? Another ground attendant who came over to drink water held up his hat and interjected: "When I first joined the army, the aircraft I served was a C46. You may only see this kind of aircraft on TV now. One time I saw the nameplate of an aircraft and it turned out that it was produced in 1943. At that time, our aircraft maintenance department The captain told me that the plane flew over the hump route..." Wang Wei and others turned their heads and saw a second-level noncommissioned officer carrying three thick canals. This basically requires more than 20 years of military service. Although no matter how high-ranking the non-commissioned officers are, they are still soldiers and need to be commanded by the commander in the command sequence. But now they are not even in the same military branch. Wang Wei and the others are very young, so there are naturally a lot less people talking among them. "Later, I was transferred to other units, and the aircraft type I was responsible for became the domestically produced Y-7, and then the Y-8, until I switched to the IL-76 in the first two years... Almost twenty years have passed in the meantime. Bar." So at this rate of development, I guess no matter what, our country should be able to build a transport aircraft similar to this one before you ground it... While the relevant forces of the Navy and Air Force were busy preparing to give the British a huge surprise, Chang Haonan, with the full assistance of everyone in the 611 Institute, has also entered into the development of the surge prediction system for the first version of the J-10 the end of. Since it is impossible to temporarily modify the AL31FN engine, the current strategy can only be to reduce the fuel supply and intake distortion by closing the throttle and forcing leveling once a surge sign is detected, so as to avoid irreversible surge. vibration state. It is not a complete version yet, but it is still usable. Especially during the test flight, it is simply a life-saving talisman. More than half of the aircraft lost by China Aviation Industry during test flights were caused by engine surge. Therefore, after completing the basic control logic, Chang Haonan''s position was relocated from Beijing Hang University to Rongcheng. After all, it still needs to be integrated into the J-10 flight control. So, a few months later, Chang Haonan saw the No. 1001 prototype again in the final assembly workshop of Factory 132. Compared to the last time we saw it, Unit 1001 is already in a fairly complete state. ?Just because it has not yet reached the stage of flight testing, the aircraft still retains its original large area of ??silver-white structural color, which is somewhat different from the yellow leather paint commonly seen in the field. Xiao Yang, Xiao Chang. ?Song Wencong, who had been stationed for a long time, stepped forward. From his bloodshot eyes and messy hair, it could be seen that he must have been spinning around for a while. After all, Deputy Chief Engineer Yang Wei, who was originally responsible for a considerable part of the on-site work, was kidnapped halfway by Chang Haonan, and the burden on his shoulders will naturally become heavier. Im really sorry, Mr. Song, for borrowing from our Mr. Yang for such a long time. ??Chang Haonan''s greetings made everyone in the workshop chuckle. "It doesn''t matter." ?Song Wencong held Chang Haonan''s hand and replied with a smile: We are not afraid that you will ask for people or things. We were worried that you would forget Project No. 10..." ?After a few words of chatting and laughing, everyone quickly returned to the topic: "After the aircraft came off the assembly line, we have already conducted tests on the electrical and hydraulic systems. According to the schedule, the engine start test will be carried out next week. However, if you need it, you can also postpone it slightly. Project No. 10 is now The Tianzi No. 1 project in the aviation industry would rather go slow than make mistakes. " Thats not necessary. Chang Haonan shook his head and walked to the air intake of Unit 1001. "The engine ground start test does not actually use the aircraft''s own flight control, but is equivalent to plugging in a test computer, so it only needs to write the active control system into the test program. As for the integration with the flight control...can it be done by Mr. Yang took the lead and carried out it simultaneously with our testing, which is safe and does not waste time. " Hearing this, the three heads of the 611 institute, Song Wenchong, Xue Chishou and Yang Wei, looked at each other a few times. Well, since you are confident, Comrade Xiao Chang, then the testing process will be arranged as you said! (End of this chapter) Chapter 316 The first ground test of the J-10 (for the alliance leader Chapter 316 The first ground test of the J-10 (added 35 updates for the alliance leader [the runner]) Compared to integrating a new set of things into the flight control, the workload of just rewriting the test program is obviously much smaller. After all, the engine start test process does not involve the behavior of any wing action surface, only the throttle valve is a degree of freedom that needs to be considered. ?Of course, at the hardware level, Factory 132 still needs to install some sensors inside the air intake of prototype No. 1001. Fortunately, it is not a big job that requires breaking the muscles and bones to dismantle the aircraft. In short, with the joint efforts of everyone, four days later, all preparations were completed for the first engine start test of Project 10. Just in time for the day before the planned date on the schedule. Engine testing has extremely high requirements for the site. During the testing process, a strong negative pressure area will be formed in front of the inlet, and behind the micro-nozzle is a high-temperature and high-pressure area. Therefore, it is impossible to continue to complete it in the original assembly workshop. It needs to Drag it to a dedicated testing site. This will be the first time that the Project 10 prototype is exposed to the sun. Xu De, the person in charge of the final assembly of the No. 1001 prototype and the deputy chief engineer of the No. 10 Project, led the workers to conduct a final inspection of the aircraft. After confirming that it was correct, he and military representative Wang Guangyan signed their names on the record sheet. How do you feel now? ?Chief Engineer Xue Chishou looked at the aircraft tractor that was carefully reversing, and asked Xu De, who had just put down his pen next to him. Its almost the same day as my daughters wedding day The latter raised his hand and gently patted the edge of the plane''s wing. But, there is still a difference. Whats the difference? I hope this daughter will go back to her parents home less often. ?Xu De replied cheerfully while taking off his gloves. It is inevitable that the prototype machine that has completed final assembly will be returned to the final assembly workshop for maintenance and modification, but if it is reworked too many times, it is definitely not a good thing. Several ground crew members jumped off the tractor and fixed the front wheel of the aircraft to a long tow bar. Project No. 10 is not only a new aircraft, but also a new supporting aircraft tractor. In the past, Chinas aviation forces and various aircraft manufacturing plants basically used Dongfeng Daka, 212 Jeep and tractors to tow aircraft. For some small planes, sometimes even a car is not even used, and manpower is used directly. For those old-fashioned second-generation or second-and-a-half-generation aircraft, this has nothing to do with it except that it is inconvenient and looks rather rustic. However, as a third-generation aircraft, the J-10 is still relatively delicate. Since ordinary civilian vehicles are not specially designed, a large amount of resonance will be transmitted to the body during the towing process, which may affect the operation of some subsystems. For this reason, Factory 132 spent huge sums of money to import this low-structure special aircraft tractor. Today is June 2nd? Chang Haonan, standing on the other side of the plane, noticed a calendar hanging on the wall not far away. Yes, Childrens Day was just celebrated yesterday. ??Yang Wei was wearing work clothes, and his eyes were squinted by the sunlight coming directly from the factory door. His attention was focused on the metallic plane in front of him, and he answered this seemingly nonsensical question in a half-joking tone, Chang Gong, although you are indeed very young, you may still be a little old for Childrens Day. ?Chang Haonan did not answer, just smiled and shook his head. June 2, 1997, in the previous life, was the day when the first prototype of the J-10 was completed and rolled off the production line. On the current timeline, although the manufacturing of the prototype of Project 10 has been accelerated due to various reasons, this day has become another important day for the prototype of Project 1001. For a large project like the J-10, it is impossible to keep its progress and basic design secret. In fact, as early as 1994, satellites captured blurry pictures of early full-size models. In 1996, the U.S. Office of Naval Intelligence even An imaginary picture of China''s third-generation aircraft that is quite close to the real situation has been released, and it is predicted that it will enter service around 2003. Hence, as the aircraft was slowly pulled out of the workshop, the group of people simply opened up and followed on both sides like guardians, walking towards the test workshop in the other direction of the factory. ?Xue Chishou simply rode a 28-inch large bumper and was the pioneer at the front of the taxiway. No one got on the bus prepared for them. Song Wencong was walking in front of Chang Haonan. He seemed to suddenly remember something in the middle of the road. He slowed down and asked the latter: I heard from Xiao Yang in the past two days that you are going to wait until Dawn gets out the turbofan 10, and then directly use the DSI inlet on Project 10? Facing this old man who has devoted his whole life to the Chinese aviation industry, Chang Haonan still did not boast too much: "Currently we can only say that we have this idea. We will have to test the performance and suitability of the DSI inlet on Guizhou Airlines'' new trainer aircraft later before we can draw a final conclusion. After all, modifying the inlet design is not a trivial matter. , we cant take risks directly on Project No. 10. There are improved models from previous generations, so he certainly knows that DSI air intake is feasible. For a medium-sized single-engine fighter, the high-speed performance trade-off has no practical significance at all. It is far less practical than reducing the weight of more than 100 kilograms and reducing the drag coefficient by a few percent. But the J-10B/C is, after all, a design that only appeared in the 2010s. The conditions in all aspects are much better than those in the 1990s, so Chang Haonan also needs a relatively simple project to practice his skills on, and then he can learn from the J-10. This can also minimize the impact on the project schedule. About an hour later, prototype No. 1001 finally arrived at the engine test station. ?Everything here has been ready as early as last month, just waiting for this plane, which has gathered the efforts of thousands of people, to be in place. The ground around here has been swept, right? ?While the staff was fixing the aircraft, Chang Haonan confirmed with Zhou Ziquan, director of the flight test station and person in charge of the flight test. He knew that the previous generation of J-10 had lost two AL31FNs during the engine test start-up process, but he had no impression of the specific reasons, so he could only strive to do his best in every aspect. Under other circumstances, such a straightforward question would actually be a bit offensive, but at this moment, no matter how careful you are, Zhou Ziquan naturally understood and nodded in reply: It has been cleaned, not only once, but also tested with a metal detector to confirm that there are no metal debris in the environment. In addition, we also... Just as the two were discussing the various preparations before the test, a report came from the work station that the aircraft had been fixed, powered on and hydraulic preparations were completed. Everyone exited the test site in order and stood in another small room separated by bulletproof glass to watch. The leaders looked at each other, and finally handed the walkie-talkie to the chief designer Song Wenchong. It is most appropriate for him to make the beginning. Song Wencong looked at the old guys (and a young guy) in front of him, nodded, and slowly picked up the walkie-talkie: Project No. 10, Prototype No. 1001, engine ground test, start! An engineer in the operating room next to him pressed the start button. Suddenly, a roar resounded throughout the entire testing workshop. Even though they were separated by a thick protective wall, Chang Haonan and the others could still hear a little bit. After a few seconds, the engine speed gradually stabilized and reached the idle state with minimum thrust. Start successfully! ??This test is naturally not just to test the startup, but also to check the working status of the engine under different working conditions. Although the AL31FN is a relatively mature design, testing the engine itself on the bench is one thing, and installing it on the aircraft and matching it with the inlet is another. Speed ??increase, 20% 30% 40% The specific command commands that follow will of course be issued by Zhou Ziquan. ?Following his clear and sonorous voice, the engine on prototype No. 1001 also steadily and gradually increased its operating speed. ?However, when Zhou Ziquan reported 70% of the instructions and the operator continued to push the throttle valve, an alarm suddenly appeared on the test computer screen! Almost at the same time, the throttle valve opening was forced back to the 40% level. ?Such a sudden change caught most people present off guard. Report! Throttle valve opening suddenly decreased! Computer alarm! There was a hint of panic in the operator''s voice. The calmest among them is naturally Chang Haonan. He knew that his equipment was working, so he pushed through the crowd and came to the door of the control room, explaining inside: The active stability control system detected the signs of engine surge, so it forcibly intervened in the throttle control! A new month has begun. Please vote for me, brothers. (End of this chapter) Chapter 317 coincide Chapter 317 Coincidence ?The test engineers present almost all turned their attention to the door. Surge precursor? ?One of them gently pushed up his glasses on the bridge of his nose. ??Now Chang Haonan''s name has gained a certain reputation in the industry, so he hesitated a little at first. ??But after repeatedly confirming that there was no obvious abnormality in the curve displayed on the computer screen, I decided to show my spirit of not fearing authority: But the data we collected just now is normal... No problems were found? Yes, if the working curve is abnormal, fluctuations should be seen in the working Reynolds number and compressor flow... In the end, it was Xue Chishou who had the final say: No matter what, stop the engine first! Even if the engine is running at idle, it is still working under high temperature and high pressure. If a problem does occur, the consequences will be serious. "yes!" ?The chief engineer who was able to make the final decision spoke, and the somewhat overwhelmed atmosphere in the control room finally dissipated a little. The roar in the test workshop gradually weakened and eventually became quiet. A group of people looked solemnly at the fighter jet in the test workshop that glowed with metallic luster under the light. Export the data and let Chang Gong and Yang Gong lead people to analyze the situation first. After a few seconds of silence, Song Wencong spoke first. The only people who participated in the entire development of this active stability system were Chang Haonan and Yang Wei, so this matter naturally had to be completed by them. Lao Xue, Lao Song. At this time, another man wearing a long-sleeved shirt and looking a little sick said: Should we try driving again? After all, the comrades at the test station are right. We didnt observe any signs of failure just now. ?Chang Haonan briefly thought about it in his memory, and then confirmed that he had no impression of this face. But being able to address the chief engineer and chief division in such a casual way obviously shouldn''t be ordinary people. ??However, Xue Chishou''s first reaction after turning around and seeing the person coming was surprise, and then he quickly walked up to him: Old Yang? Why did you come back from the hospital again? The visitor waved his hand to indicate that it was okay: Didnt I hear that you have started ground testing? How can my body get better even if I stay in the hospital? Why dont I come over and take a look. Xue Chishou sighed upon hearing this and opened his mouth but in the end he said nothing. ?After a while, he turned sideways again, stretched out his palm to indicate the direction of Chang Haonan and introduced: Lao Yang, this is... I know Comrade Chang Haonan, Ive heard about it in the hospital. ??The man cheered up, walked up to Chang Haonan, looked at it for a few times, and then stretched out his hand: "My name is Yang Baoshu, Comrade Xiao Chang. A young talent is better than seeing it a hundred times." ?This name made the latter suddenly realize it, and then he felt a little sore at the corner of his eyes ?Yang Baoshu, general manager of Rongfei, was diagnosed with advanced lung cancer in 1995, but still continued to work despite the illness, and died of the disease in 1999 on the original timeline. Mr. Baoshu, hello. On this occasion, Chang Haonan couldn''t say much else, so he stretched out his hands and shook the other person''s hand tightly. Xiao Chang, I have just asked the on-site engineer to understand the situation. I dont mean to take it personally, but if no obvious signs of failure are observed, can the test be repeated? After getting to know each other, Yang Baoshu quickly returned to the topic. If the problem just now can be reproduced, it wont be too late for us to stop the test and take it apart for inspection. ?If it makes sense, Yang Baoshus suggestion is actually okay. In matters like fault identification, it is actually difficult to say who is right and who is wrong. Problem recurrence is indeed a part of solving the problem. After all, the probability of problems with the sensor or algorithm itself is not small. One test alone cannot explain too many problems. But Chang Haonan had read the script, and he knew that this engine did have problems during testing in the previous life. And now that his active stability control system has alarmed again, he definitely can''t take any more risks. Maybe something will really go wrong next time the test reaches 40% or 50%. Surge prediction can only predict surge caused gradually due to normal intake distortion. If the aircraft suddenly hits a bird or inhales a large foreign object, even the gods will not be able to save it. Dont worry Mr. Baoshu, we havent reached the stage of dismantling the aircraft yet. ?Chang Haonan can only choose to stabilize the opponent first, "The current test system integrates the latest technology I developed. It can predict the upcoming surge or rotational stall through small-amplitude disturbance waves with certain characteristics. The comrades at the test station will bring the data later. I can conduct an on-site analysis and make targeted troubleshooting or improvements if hidden dangers can be found. If not, I can restart the test run and it wont take too long. ?Hearing that there was no need for extensive rework, Yang Baoshu finally breathed a sigh of relief and did not raise any further objections. ?About half an hour later, a staff member of the test flight station walked out of the test control room carrying a laptop. Chang Gong, the test data just now is all in it. ?Chang Haonan took the computer and connected the power supply to the socket next to it. Everyone in the room came behind him as quickly as possible and formed a tight semicircle. In the end, a few people in the inner circle voluntarily squatted down so that everyone could see the small screen. Everyone here can be said to be an expert in the field of aerospace engineering. ?Whether they believe Chang Haonans statement or not, everyone wants to see what this surge sign is about. ?After several rounds of data processing within the software, only a few curves are now left among the originally numerous and complex curves. Those who are familiar with it can see that what Chang Haonan just did was to separate the components of the measurement signal at a specific frequency. "look here." Chang Haonan pointed to one of the curves and said, "The component of the engine operating curve modal wave at the surge characteristic frequency was absent at the beginning. It suddenly appeared when the test reached 540 seconds, and then gradually increased. By the 580th second, it was detected by the surge prediction system. After monitoring, the throttle opening was forcibly closed, and after 20 seconds, this component disappeared again. " "this" ?Of course everyone can understand a curve, but many people still dont understand why this curve is related to surge. ?At this time, Yang Wei, who also participated in the entire software development process, turned around and briefly introduced the basic working principles of the system to other colleagues. "Let me explain, when the engine is far away from the surge boundary, the system has a strong attenuation effect on small random disturbances inside the system. At this time, even if there are some disturbances, they will be quickly wiped out and will not continue. Deterioration. As the engine stability margin decreases, the system''s damping to small random disturbances also gradually decreases. When the stability margin is reduced to a certain extent, small random disturbances within the system will occur into a more stable frequency. Modal wave initial disturbance Starting from 580 seconds Someone noticed the timestamp Chang Haonan just mentioned, compared it with the test log recorded by another computer, and then shouted in surprise: Wait a minute, Commander Zhou gave the 70% command at 570 seconds, which means that at 540 seconds, when the routine analysis started to show abnormalities, the throttle should still be at the 60% position! As soon as these words came out, a discussion broke out among the surrounding crowd again. Obviously, it is not the action of pushing the throttle valve to 70% that induces the surge precursor, but there are hidden dangers earlier. Or, it may be that the surge prediction logic of this active stability control itself has problems. On the one hand, although Chang Haonan has now gained a certain degree of popularity, most people at the scene have not worked with him before, so what they hear is false after all. On the other hand, the basic principles that Yang Wei just introduced are indeed quite complicated in mathematics. Most people can only understand them roughly. It is naturally difficult to agree with them from the bottom of their hearts without a thorough understanding. Fortunately, several key persons in charge, including Xue Chishou and Song Wencong, had a deeper understanding of Chang Haonan. After a brief discussion, they ordered the suspension of this startup test. The Chinese people pay attention to getting off to a good start. The first trial ended in an anticlimactic manner. Although many people present obeyed the order, their emotions were still affected. ?At this time, a loud voice sounded from the outside of the crowd: Well, there is no need to overhaul the aircraft as a whole first. I can get into the air intake and see the condition of the fan and low-pressure compressor blades! (End of this chapter) Chapter 318 An engine was saved! Chapter 318 Saved an engine! ??Everyone was attracted by the voice and turned their heads to find that the speaker was a particularly short and thin man. If it were him, then "getting in and taking a look" seems to be a feasible option. Comrade, which unit are you from? Why do I feel like Ive never seen you before? ?Yang Wei looked at the man who volunteered and felt a little strange. Logically speaking, such a distinctive person should leave an impression upon meeting him. My name is Lin Hui, and I am an engine structural design researcher at the 606 Institute. I was seconded to the flight test station here just last month to carry out support work related to the ground testing and first flight of Project 10. ?The other party reported their identity. When Comrade Lin Hui was transferred here, Xiao Yang was at Beijing Airlines, so its normal that he hasnt seen him. Xue Chishou also explained. ? Lin Hui, who had already begun to change into work clothes at this time, continued: "In the second half of last year, I followed Chang Gong in the 606 Institute to perfect the design of the turbojet 14 compressor. At the beginning, we also had many opinions on his decision to completely overturn the high-pressure compressor design and start over. But later It proves that Chang Gongs decision is completely correct. So this time I believe that there is nothing wrong with the conclusion he gave, but I think some comrades still have concerns about the judgment of regular workers. Aircraft disassembly and maintenance is a delicate job, and we cannot let everyone work with emotions. ?These words made the real owner Chang Haonan a little embarrassed. ?However, he also knew that at this time, Lin Hui''s choice to stand up was quite beneficial. In-situ inspection is the method with the least interference from external factors and the most convincing method, because the disassembly of the aircraft itself will inevitably have a certain impact on each component. Sometimes it is difficult to determine whether some small traces are from the test or the disassembly process. left in. Soon, Lin Hui, who was well prepared, walked into the testing workshop with a flashlight and a camera. A group of people followed closely behind. I saw him looking at the rectangular air inlet of prototype No. 1001 for a few times, then holding up his hands, half of his body got in deftly. Within a few seconds, the whole person had climbed completely into the air intake. I have to say that the rectangular adjustable air intake still has obvious advantages at this time. If it is a DSI, the bag at the lip of the air inlet must block people. A few minutes of silence followed. There are somestrangewhite marks on the surface of the fan blades! There are also some on the inner wall deep in the air inlet. The condition of the low-pressure compressor...cant be seen clearly..." The sound coming from the air intake had a very thick echo, which made everyone''s hearts sink. ?Especially Xue Chishou and Song Wencong, the two of them almost lost their composure and lay directly on the side of the air intake. The former even shouted directly inside: Xiao Lin, can you determine the nature of those white marks? Are they injuries or something else? "Wait a moment" ?Lin Hui turned around with some difficulty inside, held the flashlight in his mouth, and used his free hand to wipe hard at the junction between the root of the air intake and the engine. These marks can be wiped off. It should be some kind of... powder. I cant see clearly whether there is any damage. I collected some white things, you can take a look when I go out later... A few minutes later, Lin Hui, who was already sweating profusely, finally emerged from the air intake again, holding a piece of paper in his hand. "that''s it." There is some fine silvery white dust on the paper, mixed with some metal wires and the like. "What is this..." Song Wencong dipped his finger into it and put it in front of his eyes, frowning and observing. Like metal scraps? Some people soon speculated. Zhou Ziquan, director of the flight test station, felt dizzy immediately, and then stood up and assured categorically: I guarantee my party spirit and personality that there are absolutely no foreign objects in the test workshop. We have even controlled the dust indicators, and metal debris is absolutely impossible! Regarding this point, before the start of the test run, everyone personally conducted a check. Indeed, as he said, the on-site environment fully complied with the test requirements. "Anyway, this proves that the hidden danger does exist. Let''s take these powders for testing first to see if they are metals, and if so, what metals they are." Although Xue Chishou was under great pressure visible to the naked eye, he still gave the command calmly: The remaining people, take the aircraft back to the assembly workshop and prepare for a thorough investigation! At this point, no one expressed any objections. ?So the married daughter returned to her parents home in only half a day. As witnessed by almost everyone participating in the test, the assembly shop showed amazing efficiency and dismantled several important parts of the aircraft that night. The most important thing is naturally the engine. ?Although Factory 132 does not have the ability to completely disassemble and assemble turbofan engines, it is not a problem to disassemble and inspect just a few parts such as the fan and the first three-stage blades of the low-pressure compressor. Report to Mr. Xue, after inspection, it was found that different amounts of white powder were found on the engine fan blades and the first two stage blades of the low-pressure compressor. After cleaning, flaw detection was performed, and no obvious signs of damage were found. "The fourth-stage blade of the AL31FN low-pressure compressor corresponds to a set of 400 chute casing processing annular chambers, so we cannot disassemble this part for the time being. However, considering that the surface of the third-stage blade is normal, it indicates that the on-site treatment is timely. , the impact is controlled within a small range. The report by Xu De, the person in charge of the general assembly, immediately relaxed everyone''s tense hearts. In any case, the engine did not suffer irreversible fatal damage. The results of the tests on those powders came out almost at the same time. These powders are titanium aluminum alloy chips, the main components are Ti-8Mo-8V-2Fe-3Al, and Ti-6Al-4V. ?Lin Hui handed the test report in his hand to Xue Chishou, "From the composition point of view, it should be a mixture of TC4 alloy and TB3 alloy that are widely used in aviation fasteners. There were even large-sized debris with a particle size of about 1 mm at the end of the inlet. If the experiment was continued at that time, , if these debris enter the engine, the consequences will be disastrous. " Liulika has only delivered the first batch of two AL31FNs to Factory 132. One is installed on Machine No. 1001, and the other is planned to be used in Machine No. 1003 being manufactured (No. 02 is a static testing machine and does not require subsystems outside the installation structure). ? ?If one is scrapped during the ground test, then even the best result will have to postpone the subsequent first flight. If a serious accident occurs to the engine, it may even cause damage to the prototype itself, and the impact will be immeasurable. After reading the summary report, the conference room fell into silence. After a few minutes, someone finally spoke. I think Chang Gong should be allowed to say a few words. "I feel so too." "I agree!" This 606 Institute engineer (whose name is not Lin Hui, of course) who took the initiative to ask to go in and inspect the engine blades after the first test run is real. It can be said that in reality, this person''s carefulness largely saved the life of the engine. If the first prototype of the J-10 takes to the skies with this very hidden problem, the consequences may not be as simple as destroying two engines. I pay tribute to these senior engineers. (End of this chapter) Chapter 319 Foreign matter in the air intake, hidden danger solved! (for alliance Chapter 319 Foreign objects in the air intake, hidden dangers solved! (Additional update 45 for the leader [the free agent]) Actually, Chang Haonan doesnt have much to say. Now that the problem has been identified, the natural next step is to solve the problem. Aircraft manufacturing is an extremely complex industrial process. Even more than 20 years later, many steps are still highly dependent on manual operations. In this process, it is almost impossible to produce metal remnants such as broken rivets and metal shavings. situations to avoid. But under normal circumstances, firstly, according to regulations, parts should be inspected and cleaned before the end of each step in the final assembly process. This step should be able to remove most foreign objects on the surface of the workpiece. Secondly, even in some difficult cases, There are still some fish that have slipped through the deep holes that were inspected and cleaned, and they cannot easily get into the air intake. As for the fact that prototype No. 1001 was not inspected and cleaned inside the air intake before delivery... Chang Haonan glanced at the 132 factory representative who lowered his head and did not even dare to express his anger, and felt that the possibility was probably relatively low. ?Given the importance of Project No. 10, all inspection processes must be repeated many times during the final assembly process. ?Furthermore, even if we only judge from logic, if the quality management of Factory 132 can be so outrageous, then similar accidents should have happened long ago. ? Thinking of this, Chang Haonan quickly ran through the aircraft manufacturing process he had learned from Factory 112 in his mind, and then stood up. Before he could speak, and no one knew who started it, there was a burst of applause in the conference room. It was sparse at first, but almost instantly it became like a flood. ?Chang Haonan raised his hand and pressed down, but it had no effect. He noticed that the eyes of the participants, especially those from the test flight station and assembly workshop, had changed significantly compared to the previous days, and even compared to this morning. ?That''s the difference between "hearing that someone is awesome" and "realizing that someone is really awesome." It wasnt until about a minute later that the applause finally subsided. First of all, judging from the content of the inspection report, the metal debris attached to the end of the inlet and the engine blades can basically be determined to come from the drilling and nailing process during the riveting process. Although this is a problem that everyone is already aware of, when it was formally summarized at the meeting, many people still felt a little bit in their hearts. Especially Xue Chishou. ?As the chief engineer, he will inevitably be held responsible if such a large quality defect occurs during the production and manufacturing of the prototype. ?Of course, he has also been mentally prepared for this. ?However, just when Xue Chishou was about to make some self-criticism, Chang Haonan immediately changed the subject: But I think this is not a problem caused by the lack of implementation of production responsibilities or quality inspection rules. The main reason should be at the technical level. ?This sentence made many people feel a little calmer in their uneasy hearts. "Compared with the various types of J-7 aircraft produced by Factory 132 in the past, Project 10 has unprecedented complexity in process and design, and the standards for production and testing cannot be improved overnight. In other words, many aircraft that were not available before The problematic operating procedures and production regulations may cause problems now. "So, in view of the current situation, I think there are two tasks that should be carried out immediately. One is to conduct a thorough inspection of the aircraft and conduct a thorough inspection of the excess objects that accidentally fell into the body cavity during the skin riveting process. To fix the leak, the second is to comprehensively check the design of the aircraft and find out where the foreign matter in the aircraft cavity enters the air intake. After the brief speech, Chang Haonan returned to his seat. ?Although he was invited to serve as a consultant for Project No. 10 and has considerable authority and say in the project, he is not an internal staff member of the 611 Institute and the 132 Factory after all, and he certainly cannot say too much about more specific responsibilities. That is a matter for their organizational department. I would like to add two more points. Xue Chishou slightly brought the microphone in front of him, "No matter what the cause of the problem is ultimately investigated, the main responsibility lies with me, so everyone should not have too much psychological burden at work. In addition, after the investigation is completed, corresponding production plans must be formulated based on the characteristics of the J-10 Rules and regulations ensure that no excess material is allowed to enter the body cavity in any process of production in the future. The meeting is dismissed! After clarifying the next tasks and taking the reassurance given by Xue Chishou, the haze of the failure of the first test run was finally cleared away, and everyone quickly started follow-up work according to the arrangements at the meeting. Not to mention that Factory 132 turned around and directly launched a "Quality Culture Month" construction activity. On the side of Factory 611, the inspection speed of the air inlet design was faster than Chang Haonan thought. ??Early on the morning of the third day, he had just finished breakfast and came to the office when he received a call from Yang Wei: The connection between the air inlet and the body cavity has been found. So fast? Ill be there soon. A few minutes later, Chang Haonan found Yang Wei buried in a pile of drawings in a design room Since the design of Project No. 10 began in the early 1990s, and the basic design was completed before Chang Haonan was reborn, there was no opportunity to use digital design technology. At present, Institute 611 has begun to organize some manpower to absorb relevant experience from Institutes 601 and 603, but this work is destined to be impossible to complete in a short time. So I still have to turn over the paper drawings slowly. "Chang Gong, I confirmed several times yesterday that the J-10''s air inlet has no physical connection with cavities such as the wings and the fuselage frame. Even if foreign matter remains in these parts, it is absolutely impossible to be sucked into the air inlet. , so I changed my mind this morning, look here. ??Yang Wei said and pointed to several places near the entrance of the air intake. "In order to ensure effectiveness and reliability under various working conditions, the binary three-wave system adjustable air inlet contains several spherical one-way valves. The manufacturing process of this component is to install the spring, bracket and valve inside the shell Then it is closed directly, which is a part that cannot be decomposed after it is offline. " I asked the manufacturer responsible for manufacturing this valve and learned that they used to use a simple kerosene flushing method to clean it. However, after analysis, this method is not good at removing foreign matter that may remain inside the housing. "Under normal circumstances, this valve should be closed during engine operation, but if something is stuck in the bearing part, it will cause poor reset. In this case, the strong negative pressure inside the intake duct is likely to cause the inside to Suck out the metal foreign objects! Chang Haonan took several design drawings of the air inlet and the spherical one-way valve, spread them out on the table and observed them carefully for a few seconds. ?Then he remembered that he had seen a similar structure before. Wait a minute...shouldnt this thing have a dedicated cleaning spindle? Special mandrel? ?Yang Wei was stunned: They didnt mention it. They said it was a direct high-pressure fluid flushing method. "Well" Chang Haonan realized that the cleaning tool he had seen in his previous life should have been produced during the process of solving the problem after the J-10 failed two consecutive test runs. Fortunately, the structure is not complicated, and he can easily come up with the design drawings by working backwards on site. Do you have a computer? It has drawing tools. Theres one next door, Ill take you there. ?At noon that day, Chang Haonan handed a printed drawing to Yang Wei. The principle of this equipment is as shown in Figure 2. Before cleaning, use the mandrel shown in Figure 3 to push in, push open the valve 10, and then use reverse pressure to flush..." ??Yang Wei was stunned as he listened to Chang Haonan''s introduction. After a long time, he took the drawing from the latter and said with emotion: I used to think that I was somewhat competent in engineering. Now it seems that we still have to continue to pursue progress... (End of this chapter) Chapter 320 Ground test acceptance, as well as the General Equipment Departments Chapter 320 Ground Test Acceptance and the Birth of the General Armament Department After determining the crux of the problem, the supporting manufacturers quickly received relevant instructions to update the product process. At the same time, they were sent the set of drawings drawn by Chang Haonan. Since there was no need to make any improvements to the workpiece itself, just three days later, several new spherical one-way valves were delivered to Factory 132, which had already disassembled the aircraft and was conducting a comprehensive inspection of the aircraft cavity. ??Although it has been determined that the cause of this engine test failure is not within the body, the results of the entire round of inspections are still quite shocking. Thanks to the upgraded new testing equipment, the foreign objects detected by Factory 132 from various deep holes and narrow cavities include but are not limited to broken rivets, bolts and nuts, metal shavings... In short, although it does not directly affect flight safety, it is definitely not a good thing. Furthermore, considering that all aviation industry system manufacturing plants use the same old processing and quality inspection standards, then I am afraid that the situation of several other brother units is not much different... In the past, those old second-generation machines were relatively rough and had low craftsmanship and quality requirements, so the problem might not be that big. Now everyone is busy switching to the production of a new generation of combat or auxiliary aircraft, and it is unacceptable to continue like this. So the Quality Culture Month activity of Factory 132 was quickly extended to the entire system... Leaving aside this movement, which has a far-reaching impact on the future development of the aviation industry, for the No. 10 project team, the next core task is to restart the previously interrupted engine operation. Prototype No. 1001 was once again pulled out of the assembly workshop and delivered to the test workshop of the flight test station. It is still the original work station and the previous preparation process. ?Although Chang Haonan has not been working for a long time, the number of projects he has actually participated in is even comparable to that of Song Wencong, the oldest person here, so he is naturally familiar with these processes. Except for some parts that must be signed by the relevant person in charge of the 611 Office, he can direct many contents. ??More importantly, with the performance of turning the tide during the last test run, the staff of both Factory 132 and the test flight station paid more attention to Chang Haonan''s opinions, and would even take the initiative to come to him to ask for help. Just like last year in Shengjing. He can get a higher starting point, but prestige must be established slowly. Is the same engine used this time? Chang Haonan looked at the No. 1001 prototype that was being finalized through the thick window glass and asked Yang Wei next to him. "Yes, your surge monitoring system worked in time last time and controlled it before the engine speed increased to 70%, so some really destructive large remnants have not been sucked out, only a small amount of metal debris. It affected the first two stages of compressors. After inspection, there was no structural damage and they can continue to be used. " The latter smacked his lips and replied with trepidation, "It''s really scary... The blades of the AL31FN engine are actually quite resistant to foreign objects. Without your system, even if the ground test car is completed, the engine has been irreversibly damaged, and there is a high probability that it can still be used. The disease persists. If there is no problem with the apparent data, we may not dismantle the aircraft for inspection. If the prototype aircraft comes into the sky with such hidden problems..." ?This is a cognitive problem that will inevitably be encountered in the process of cross-generation upgrades, such as propeller to jet, subsonic to supersonic, mechanical flight control to fly-by-wire flight control... ?This type of upgrade is no longer entirely a quantitative change brought about by technological progress, but involves completely new areas that have never been explored in the past. It is normal for some mistakes to occur and even to pay some price. ?In the original timeline, this hidden danger was eventually discovered by Lin Hui, who volunteered to get into the intake duct to inspect it, and was solved at the cost of scrapping two AL31FN engines. Now with the help of Chang Haonan, Project No. 10 did not cause too serious losses in the same place. The saving of two engines is secondary. More importantly, it is conservatively estimated that the first flight node will be advanced by at least half a year as a result. Thats good. In this way, the progress of Unit 1003 will not be affected. After the first flight, the progress can be accelerated..." ?While the two were talking, the engine of Unit 1001 had been successfully started again and was running at idle speed. 10%20%30% Following Zhou Ziquan''s command, the engine speed increased steadily, and soon reached the last threshold of 60%. Zhou Ziquan, holding the walkie-talkie in his hand, took a deep breath. Although intellectually speaking, the problems that caused the failure of the previous experiment have been completely eliminated, there is still a bit of a psychological shadow when we get to this place. Chang Haonan, who was not far away, noticed that the other party''s forehead was covered with a layer of fine sweat. ??In mid-June, the temperature in Chengdu was already quite high. Everyone was wearing the required long-sleeved work clothes and crowded into a control room that didn''t even have air conditioning. The environment was indeed quite bad. The speed is increased by 70%! There was not much nervousness that could be heard in Zhou Ziquans voice. As a test commander, he must be a good "Dinghai Shenzhen". On the screen of the data recording computer, the engine speed was stable at around 70%. Everything was normal, and the surge monitoring system did not alarm again. Although it was not yet time to open the champagne, the operator in front of the computer had his mouth corners raised unconsciously. The following part is naturally a matter of course. Speed ??increase, 100%! When the engine finally reached full power and ran smoothly for five minutes according to the test standards, the entire control room finally erupted in cheers. Turning it on will not further increase the speed. It only injects fuel into the high-temperature gas in the afterburner behind the turbine for supplementary combustion to increase the gas flow rate. Therefore, the engine startup test of the prototype is completed when the speed reaches 100%. . The afterburner test needs to be carried out on a more open runway, and is usually put together with the rolling test before the first flight, which is a later matter. The roar in the workshop outside gradually stopped. As the engine speed and thrust return to zero, the power supply to the entire machine is released, which also means that this test is officially over. Song Wencong, who finally had a smile on his face, picked up a loudspeaker from the side and shouted loudly at the scene: Now, I announce that the engine start test of the J-10 aircraft was a complete success! The surging crowd quickly surrounded Chang Haonan, and then... I dont know who took the lead, but in short, he was lifted up and thrown into the air... After celebrating, Chang Haonan, who finally broke away from the crowd, straightened his messy clothes and found Song Wencong and Yang Wei who had already gathered together to analyze the data. Once the ground test is completed, can the preparations for the first flight and the setting of the estimated timetable be put on the agenda? It goes without saying that the significance of the J-10 to China''s aviation industry is no less important than the first "Type 56" fighter that rolled off the production line 40 years ago. Therefore, Chang Haonan is naturally looking forward to sending the No. 1001 prototype into the sky as soon as possible. "The progress of the flight control upgrade here is relatively optimistic. The active stability control system written by Chang Gong uses very sophisticated mathematical principles, so the control idea is not too complicated and there are no particularly difficult parts to handle. It is expected that by the end of this month, It will be done by the beginning of next month at the latest. ??Yang Weis ability in flight control goes without saying. Even Chang Haonan would be hard-pressed to catch up without cheating. Subsequently, Song Wenchong also raised his head and added: "Well, the No. 02 ground verification machine has been completed. I contacted the comrades from the Strength Institute two days ago. They will rush over from Haojing to complete the ground vibration test and static test of the whole machine, and then pass the National Defense Science and Technology After acceptance by the Working Committee and the General Equipment Department, preparations for the first flight can begin. This process will not take too long. According to my experience, if it goes well, it will be expected to be from August to September. For the people of China Airlines of his generation, it is a surprise if there are no surprises in the ground test, so the current efficiency can definitely be regarded as an unexpected surprise. General Armament Department? ?Chang Haonan caught a noun from the answer just now. When the August 3rd Project was carried out before, the only party responsible for accepting these processes was the Science and Technology Commission. In his impression, the General Armament Department at this time was still a part of the General Staff Department, so work including the acceptance of key military projects was carried out by the Chief of General Staff. This position was not specifically responsible for military technology, so Reviews are generally only conducted during finalization and delivery to the troops. The independent General Armament Department should not appear for another two years. "Yes, the newly established department of the military in April this year is responsible for the research, development, production, and use of weapons and equipment in the entire army. In other words, all kinds of things used in war, except clothes, hats, shoes, and socks, are all They manage. Speaking of this, Song Wencong said in a joking tone: Speaking of which, the idea of ??setting up such an organization has long been in the mind, but the fact that it can move so quickly is largely due to you. "Clam?" Chang Haonans head is filled with questions. Since he was reborn, he had not had much direct interaction with the military system. How could this be related to him? "Originally, Director Ding Gaohengding should have resigned from the Science and Technology Commission at the end of last year, but because of you, the superiors believed that the Science and Technology Commission is currently in a stage of rapid development and change, and it is not suitable for a sudden change of generals, so even the transfer order was not The Minister Cao Gangchun who got it suddenly had no place to go, and his original position was already occupied by someone else. In the end, in order to solve this personnel problem, the General Armament Department, which had been discussed for two years but was still in the process of being established, was simply replaced. It''s been pulled..." (End of this chapter) Chapter 321 paris air show Chapter 321 Paris Air Show It was the same day that the J-10 completed its engine ground start-up test. 8,500 kilometers away in the north of Paris, over Le Bourget Airport, a twin-engine propeller aircraft with a white body and painted Chinese and Italian flags on the left and right wings was aiming at the runway and slowly descending under the command of air traffic control, preparing to fly. landing. On the plane was a XAC delegation led by Yi Yuanhe, chief engineer of the 603 Institute. ??This trip was specially invited to attend the 42nd Paris Air Show that is about to open. What they were flying was naturally the star product brought by the aviation industry this timethe first Chinese aircraft to pass the airworthiness certification of all 15 EU member states, the MA-60. For those familiar with the situation, what is more concerning about this model is that among the 15 countries, five countries, France, Germany, Belgium, the Netherlands and Luxembourg, have directly recognized the airworthiness of regional aircraft in the form of mutual recognition. Approved the review report made by China CAAC. This is a feat worldwideairworthiness mutuality can greatly reduce unnecessary administrative processes and waste of resources, and increase the speed of the development of the aviation industry and the iterative upgrade of civil aviation aircraft models. ? FAA and JAA have discussed the feasibility of a similar approach, but it failed to take shape due to fierce competition and differences of opinion between the two parties. No one would have thought before that it was Europe and China that first figured out the feasibility of this route. Most people in the industry are optimistic about this, because since this agreement, which is obviously more beneficial to China, can be signed, it will inevitably mean that the European aviation industry represented by Airbus has obtained a sufficient share in the booming Chinese market. . In the minds of many Europeans in this era, they should become the second pole in the world independent of North America. Therefore, as long as Boeing can do it, they can negotiate with China, Russia, or even India. Of course, many media and commentators believe that although airworthiness certification is a beneficial thing, considering Chinas aviation technology level, Europe is most likely making a bad move. ??If a large number of problems or even accidents occur in the certified Huaxia aircraft models, it will be a huge blow to the European aviation industry, which is already in a period of rapid development. In short, its a mixed bag of praise and criticism. ?This is also one of the main purposes of allowing MA60 to fly over thousands of miles after six stops. ?After the agreement between China and Europe was reached in April of this year, Paris, one of the two major air shows in Europe, extended an olive branch under the instigation of Airbus and Alenia Aerospace. Although this is not the first time that China has participated in the Paris Air Show, as a special invitee this year, the specifications and treatment it received are obviously completely different. The organizer has arranged an area of ??about 1,000 square meters next to the C position of the exhibition area as the exhibition location of China Aviation Industry. The area is not large, but it is a prime spot with the densest flow of people. To this end, Factory 172 specially accelerated the final assembly progress of the No. 03 prototype, and finally made this new aircraft catch up with the air show schedule. A few minutes later, MA60, numbered B6003, touched the ground lightly, decelerated and entered the taxiway, and finally stopped at the prepared position according to the guidance. Around it, other Chinese models that had set out earlier and arrived by sea had been arranged. ?Yi Yuanhe got off the plane and shook hands with the team leader Lin Weixuan who was already waiting here. Preparations for the air show are in place, and we are just waiting for our star to arrive! ?Lin Weixuan looked at the MA60 that had just stopped the propeller and said. Organizationally, please rest assured that we will definitely present the aircraft in its best condition to our European counterparts and audiences! According to the plan, MA-60 will have a 15-minute flight demonstration opportunity on the morning of the second day of the air show. This is also the main reason why Yi Yuanhe, as the chief engineer, must follow him in person. Okay, okay, okay! This is the first time that China is not participating in a foreign air show as a supporting role. Lin Weixuan, who has been in this industry for decades, was naturally very excited. He said three good words in a row, and then pulled Yi Yuanhe to Go to the side, Let me show you the overall situation of this air show. In order to repay the goodwill of the organizers, the aviation industry did not bring any imitation products like the Z-9 this time. Therefore, apart from the many models presented as usual and the MA-60, the only real ones at the exhibition were the aircraft. 12. K8 and J-7MG. Originally, China Aviation Technology hoped to let the J-7F participate in the exhibition, but this model is so popular that in addition to launching user minibuses, several countries have shown strong interest in it. The current two prototypes have also There were test flights and demonstrations, and they were really exhausted and couldn''t spare any time. The main strength of Factory 132 was concentrated on a few J-10 prototypes, and they couldn''t come up with new aircraft for a while, so they had to give up. Since the air show is about to open, most of the exhibitors have completed the layout of their exhibition areas, and the two of them were able to preview the unique skills of their international counterparts in advance. The core position of the air show is naturally left to the French. Two huge four-engine dual-aisle passenger aircraft occupy most of the space in the field of vision. They are two new variants of the A340, A340-500 and A340-600. ?According to the information on the exhibition board, these two models are 320-seat and 380-seat respectively, and the range can still maintain the same 13,500 kilometers of A340-300 or even longer. Tsk tska 370-ton airplane can fly 13,500 kilometers ??Yi Yuanhe looked at the two passenger planes in front of him, then looked back at the MA60 parked in his own exhibition area not far away, with a bit of envy in his eyes. We still have a long way to go "Take your time, you have done a pretty good job. Not to mention going further, even last year, we would never have dreamed of having an aircraft pass the European airworthiness certification... You, Lao Yi, deserve most of the credit. " Lin Weixuan next to him opened his mouth to console him. Its a great achievement...I dare not say that... Hearing this comment, a young face appeared in Yi Yuanhe''s mind, and he quickly waved his hand. This era belongs to young people now, so we can use some of our remaining energy. ??Although Chang Haonan''s participation in the MA60 project is public information, it is impossible for everyone to know the details of his specific contributions, so Lin Weixuan only regarded Yi Yuanhe as being modest and did not ask more questions. In addition to passenger aircraft, another highlight of the French exhibition area is the Rafale fighter jet, which is still in prototype form. ?There are not many opportunities to observe other countries'' fighter jets at close range, so Yi Yuanhe also moved closer to take a look. This design is so weird... Its obviously a big airplane, but why does the air intake compress the nose so much? It feels like the space left for the radar is about the same as the J-7F in the 611th Institute... Yi Yuanhe pushed up his glasses and was a little confused about the design of Rafale. ?However, it is naturally impossible for anyone to answer this kind of question. His own specialization is not in fighter jet design, so he did not get any results after looking at it. The exhibition areas of several other European countries were relatively boring. Only the EF2000 Typhoon fighter jet presented by the United Kingdom was a highlight, and the rest were basically familiar old faces. Due to the merger of Boeing and McDonnell Douglas, they were completely absent from this air show, so the position that was usually arranged opposite, where they competed with Airbus, was left to me. Do you want to go and see it? Lin Weixuan suggested, sensing that Yi Yuanhe was a little uninterested. (End of this chapter) Chapter 322 The Russians also envy us (die for the leader) Chapter 322 The Russians also envy us (Added update 55 for the alliance leader [a side hustler]) ??The Russian exhibition area is located on the other side of the taxiway from France. Since it is customary to prepare it for Boeing and McDonnell Douglas, the area is really large. ??The old guys also lived up to the organizer''s arrangements. They basically took out the best stuff at the bottom of the box. Located in the center of the exhibition area is an IL-96-300 that was absent from the last Xiangzhou Air Show. ?Although it is smaller than the Airbus A340-500/600, it is a serious four-engine wide-body passenger aircraft anyway, and it can barely match the alignment mechanism. As for the other Tu 204-100S, it is an old friend whom I met last year. ?However, Yi Yuanhe was more interested in the latter this time. As the chief model engineer of the 603 Institute, he had heard some rumors from the Science and Technology Commission level before. After the superiors have given up hope on the MD90 project in cooperation with McDonnell Douglas, in order to continue to promote the domestic large aircraft industry, and more importantly, to maintain Hufei, which has acquired certain capabilities, from falling apart, the current plan is to refer to the 11th The project model gradually introduces the production line of Figure 204/214, and requires the Tupolev Design Bureau and the Aviation Industry Corporation to cooperate to standardize and customize domestically produced passenger aircraft according to requirements. Considering the current predicament of the Tupolev Design Bureau, this proposal is obviously quite feasible. Of course, China''s technological accumulation of large aircraft is even weaker than that of fighter jets. It may be difficult to obtain extremely favorable conditions for its own operations like Project 11. ?But no matter what, it will definitely be easier to talk to than Boeing after acquiring McDonnell Douglas in the future. With the attitude of going to see something, Yi Yuanhe walked directly over Lin Weixuan, who was half a step in front of him, and walked to the Tu 204. ??There are fewer staff in the Russian exhibition area than expected. Basically there are only a few staff who are watching the venue to clean and maintain order. What is even more surprising is that after seeing their IDs and confirming that they were fellow exhibitors from China, the other party directly invited them to get on the plane and have a look. Generally speaking, unless the passenger aircraft at the exhibition are in a very early stage, they will be open for viewing, but such enthusiastic invitations are indeed rare. Yi Yuanhe was not polite. He had studied in the Soviet Union and could speak Russian. After a brief communication with the Russian staff, he took Lin Weixuan directly to visit the two planes. Especially the cockpit. The cockpits of the IL-96-300 and the Tu-204-100S use almost the same style design and avionics equipment. Although the gap with their Airbus and Boeing counterparts is still relatively obvious, from the perspective of the mid-to-late 1990s , not entirely behind the times. The only fly in the ointment is that both aircraft still retain the design of a three-person crew, that is, the pilot, co-pilot and mechanic, while the two new models of Airbus A340 I just saw opposite have been upgraded to a two-person crew. . For passenger aircraft that need to be operated commercially, one more person is a huge expense. ?Yi Yuanhe tried to sit in the main driving position in Figure 204 and held the steering wheel in front of him to feel it. Can the cockpit be upgraded to a two-person cabin? He turned around and asked the Tupolev Company staff behind him in Russian. The latter nodded: The company already has relevant plans, and it is expected that the next major upgrade model will use a two-person cockpit. According to industry slang, this answer is basically equivalent to not being able to do it in a short period of time. After all, given the current situation of the game, God knows when the next big version will be released. ?But just when Yi Yuanhe was about to say something, the other party added: However, we are planning to launch a sub-model using all Western equipment, the Tu 204-120. The basic performance is similar to our Tu 204-100S, but the degree of automation will be higher, and of course the price will be more expensive. Yi Yuanhe shook his head. Changing avionics may be more attractive to some Western or pro-Western customers, but as far as China is concerned, the introduction of the production Tu-204 was originally to avoid risks and obtain complete 100-ton aircraft manufacturing capabilities. If it is for advanced To choose a large number of Western subsystems is to sacrifice the basics and pursue the last. In any case, there are still a large number of aircraft with three-person crews in civil aviation, so it is not unacceptable in a short period of time. ?As long as the price of the plane is right. ?Thinking of this, he asked again: Then this model is the Tu 204-100S. How much does each aircraft cost? ??The seemingly simple question actually stunned the Russian guy next to him.?????Actually, this is separated by lines such as mountains. ?Yi Yuanhe is an expert in aircraft design, but he actually doesnt know how to sell aircraft. In aircraft transaction contracts, the bare metal price is often only a small part of the total price, while the bulk is other services included in the contract, such as pilot and ground crew training, parts supply, warranty methods and warranty periods. ?So not talking about these and only talking about price is a hooliganism. ?However, he finally got a less precise answer. According to the purchasing habits of general airlines, the price of spare parts and maintenance services is approximately between 32 million and 39 million U.S. dollars. Later, Yi Yuanhe realized that he actually had no relevant concept. So I had to switch to Chinese and ask Lin Weixuan, who was confused because he couldnt understand the Russian conversation: Old Lin, the person just now said that the price of their aircraft is about 32 million to 39 million U.S. dollars. How does it compare to a mainline passenger aircraft? The latter then knew that Yi Yuanhe had just made an inquiry. If its less than 40 million...its pretty cheap. After thinking for a moment, Lin Weixuan replied: We purchased a batch of Boeing 757-200s last year. The overall performance is similar to this Tu-204, and the price is US$74 million per unit. Airbuss latest A321, 80-ton class, has a unit price of more than US$70 million. This is a very intuitive comparison. There must still be some water in the quotation given by the Russians. If localization can be completed in the future, the cost can be reduced even lower. At that time, it can even be used as a cargo aircraft or a special aircraft platform. So Yi Yuanhe secretly recorded this matter in his mind. In addition to the two large aircraft, the Russians also brought a latest Flanker demonstrator aircraft numbered 711, and a front-line bomber named Su-32FN. As a military aircraft, it is naturally not open to the public like a passenger aircraft, so we can only take a look at it from a distance outside the fence. ?Both aircraft have a three-wing design, especially the 711 aircraft which also uses a three-dimensional vector nozzle, which will surely make a huge leap in maneuverability. Perhaps it can also be used as a future improvement direction for Project 11 After leaving the Russian exhibition area, Yi Yuanhe took out a notebook and wrote down all the things he had just thought about. ?However, when they walked around the air show site and returned to the location of their own aircraft, they discovered a scene that made people laugh and cry - A group of old men with ID badges of Russian exhibitor staff, like Yi Yuanhe and the two just now, gathered around the MA60 display board with great interest and stopped to watch, and it sounded like they were having a rather heated argument. discuss. No wonder there werent many people over there just now, and they all came to us after a long time ?Yi Yuanhe straightened his clothes and walked forward, but in the middle of the mess, he heard a few words in Russian clearly. The display board says that this type of aircraft has passed the airworthiness certification of all 15 EU countries. I want to know how they did it? "Not only that, a colleague of mine went to Tashkent to receive Chinese customers before. I heard from them that China and Europe directly signed a mutual recognition of airworthiness certification for regional aircraft below a certain take-off weight and number of seats. That means that in the future, China Models that have passed the border inspection can be directly operated in Europe. The tone of the second voice was full of envy: It would be so comfortable if this condition were given to us... In an instant, Yi Yuanhe suddenly realized something. China does not have any leverage in terms of large aircraft technology. But there are places outside technology. And its crucial. (End of this chapter) Chapter 323 Those who wish take the bait Chapter 323 Those who are willing take the bait ?Thinking of this, Yi Yuanhe quietly took off the ID tag hanging around his neck and put it in his pocket, and motioned to Lin Weixuan next to him to do the same. ? Then he pulled the latter closer to a distance that would not attract much attention, pretending to observe the Y-12 next to him, but his attention was still focused on the crowd of onlookers in front of the MA-60. ? When he was visiting the opposite exhibition area, Yi Yuanhe also had a glimpse of the regional aircraft Il-114 brought by Ilyushin Company from a distance, which is generally at the same level as the ATR42 and MA-60. ?At the time, I didnt pay much attention to it. After all, the market for 40-50-seat regional propeller airliners is already quite limited, and it is impossible to operate many overlapping models at the same time like mainline airliners. But if you look back and think about it carefully, this shows that the idiots also have export needs for regional aircraft. Of course it is impossible for China to cultivate a competitor for itself, but the MA-60 is considered a relatively small level even among regional aircraft. You must know that in the previous package agreement signed with the EU, the upper limit of mutual recognition of airworthiness was 100 seats and 50 tons, which has basically touched the edge of small mainline passenger aircraft such as the Airbus A318... ?Yi Yuanhe felt that he should pay attention to whether the Russian side, especially the Tupolev Design Bureau, had relevant models that met the requirements. ?Although the path of exchanging technology for technology is currently unworkable, exchanging policy for technology can be regarded as everyone getting what they need, and it is always a lot more proactive than just providing money. ?Yi Yuanhe listened with open ears and became excited, but it was painful for Lin Weixuan next to him who did not understand Russian. ? Out of curiosity, he could only watch a group of Russians enthusiastically watching his plane. For him, the general leader of the air show, it is a good thing that foreigners are interested in one of his participating models, and if a photo of this scene is taken, it can be used as a highlight in subsequent publicity. ??But no matter how good the photo is, it must be accompanied by corresponding text. The people who promoted the propaganda this era still have a little bottom line. There is no picture of the beginning, and the rest is all relying on this kind of hard work. ?Therefore, after scratching his head for a long time, Lin Weixuan finally couldn''t hold back his instinct of seeking knowledge and gently patted Yi Yuanhe on the shoulder: Lao Yi? What are those Russians talking about? They also want to buy our planes? The latter, who was lost in thought, turned around and breathed a sigh of relief when he realized it was one of his own: Thats not the case. They also have similar models. Lao Maozis economy is in dire straits and aviation fuel is not valuable. The advantage of our aircrafts low fuel consumption cannot be fully utilized. ?Yi Yuanhe waved his hand and denied Lin Weixuan''s somewhat outrageous guess. This makes the latter feel a bit regretful. You should know that Russia is also Europe in a geographical sense. In May this year, Airbuss decision to purchase icing water spray simulation equipment from China caused a huge uproar in the aviation industry system. The frustration that had been suppressed by aerospace colleagues was wiped out. ? And if the whole machine can be exported to Europe... I simply dont dare to think about it. ?However, Yi Yuanhe immediately changed the topic: "What they are interested in should be the agreement we have reached with Europe. Someone just proposed that they want to obtain EU certification indirectly by obtaining our airworthiness certification, especially for some subsystems where they have certain advantages. As long as they pass the approval Guan can become an international supplier. I just want to ask you, is this operation feasible according to the detailed terms in the agreement? As a person who specializes in technology, he can only have a general understanding of aviation regulations and related policies. Real details still need to be asked to professionals. After hearing this, Lin Weixuan frowned and thought for a moment, then shook his head: "No, the mutual recognition objects stipulated in the agreement are limited to complete aircraft products developed by enterprises within our mainland. As for subsystems, they can only be certified in the form of being installed on regional model aircraft that meet the requirements, and for products that clearly exceed The EU has the right to review the aircraft design based on aviation common sense. What is a design that clearly transcends aviation common sense? Yi Yuanhe was a little confused. For example, replacing the MA-60 with two 10-ton thrust turbofan engines. ?This clause is obviously to prevent someone from using this loophole to gain mutual recognition for products outside the scope. What if it is a jointly developed model? For example, if we cooperate with Russia to design a new regional airliner, does it fall within the scope of the agreement? This is something Yi Yuanhe has been thinking about since just now. Since the Russians are interested in this matter, it means there is talk. ? Even if Figure 204 itself is not within the scope of the license, it can still be used as a bargaining chip. There is no express provision ?This question obviously made Lin Weixuan''s brain enter an overclocking state, so he answered after a while: "But I think we have to at least play a major role in it." This is a good request and should be resolutely implemented. Hearing the answer he wanted, Yi Yuanhe finally smiled. Old Lin, go and prepare the MA 60 display materials again, and create a separate page to introduce the main contents of the agreement. Ready again now? ?Lin Weixuan had an expression on his face that said, "I''m afraid you''re not kidding me." In this era, everyone has limited experience in participating in foreign exhibitions. All promotional materials for China are prepared in China one month in advance and then brought over. The Paris Air Show will open tomorrow, allowing him to get a brand new set in one day. When I came out, it was indeed a bit more intense. Yes, its very important. If you cant make it tomorrow, you must be ready before the flight show the day after tomorrow. Yi Yuanhes attitude is very tough. Okay, Ill contact the local chamber of commerce to see if it can be expedited in France. ?Lin Weixuan, who realized the seriousness of the matter, also put away his smile, nodded solemnly, and then immediately turned around to leave. But he was called from behind again. In order to take care of audiences around the world, write in several more languages, especially Russian, which must be added! Facts have proved that DDL is indeed the primary productive force. ??When the air show officially opened at noon the next day, Central European Time, the display panel that originally stood in front of MA60 had turned into five large pieces connected together. In addition to the performance of the aircraft itself, the content also includes an introduction and explanation of the manufacturer and legal issues. It clearly states that regional passenger aircraft with 100 seats or less than 50 tons designed and produced by China Aviation Industry Corporation can directly fly in the EU. Registered and operating in 15 countries. ?With a sharp roar, the Su-37 prototype numbered 711 began its flight performance. For the onlookers watching the air show, what is more interesting to them is naturally the fighter jets. ?Due to the absence of the American manufacturer, the YF22 prototype that was once rumored to be displayed failed to appear. Naturally, the Su-37 became the star that received the most attention at the scene. As a dazzling work of Sukhoi Company, it did not disappoint the audience. It displayed a series of jaw-dropping movements such as pendulum, tail rush, falling leaves and so on at a very low height, which attracted bursts of cheers and applause. However, just when most people''s eyes were focused on the sky, Valentin Klimov, the model manager from Tupolev Company, stopped in front of the small Chinese exhibition area and stared at the company. I looked at the five large exhibition boards together for a long time. He clearly remembered that when he came over at noon yesterday, there was no such detailed introduction. Chinese exhibitors even thoughtfully prepared all six United Nations working languages. ?This makes it difficult for Klimov not to suspect that the other party is fishing in a targeted manner. But even so, he was attracted by the last part of "Legal Questions". There is nothing I can do, the bait is too fragrant and I cant help it. Suka ??Klimov pushed up his glasses, and he, who was always well-mannered, uttered a classic Russian quintessence: The Chinese are actually able to negotiate this kind of agreement. Did they bribe all the members of the European Parliament... (End of this chapter) Chapter 324 Tupolev and MiG decide to sell themselves Chapter 324 Tupolev and MiG decide to sell themselves ??Although it is difficult to understand how the Chinese did it, a photocopy of the last page of the agreement signed by both parties was posted on the display board. Considering that Paris is also the territory of a core member state of the EU, the possibility of using EU resolutions to swindle here is still not very high, which is why Klimov does not believe it. This is a big deal for the Tupolev Company, which is already going crazy. ?So he jogged all the way back to his country''s exhibition area and pulled Vladimir Kravchenko, the somewhat idle head of MiG''s commercial department, in front of the MA-60. After the disintegration of the alliance, the Sukhoi Company, which had lost its restrictions, opened up its supply of heavy-duty Su-27 fighter jets to almost all countries willing to pay, directly seizing almost all of the blue ocean market, and MiG''s corresponding product MiG Although the price of Ge 29 can be a little cheaper, it is far from its big brother in terms of performance and potential. ?As long as these two types of aircraft are put together, even a layman who knows nothing about aviation will know which one to choose. In the end, only a very small number of users who really couldn''t afford it, or who thought there was no need to use a heavy fighter, chose the MiG-29. Having made money, Sukhoi quickly invested the funds in improving its leading products and launched a series of new sub-models such as the multi-functional Su 30 and the improved Su 27SM, which made it impossible for MiG to catch up. . ?Su 37, who is flying freely in the sky at this moment and attracting many eyeballs, is also one of them. Few people know that the aircraft numbered 711 is not actually a mass-produced model, but a demonstrator in a high-mobility technology demonstration project, used to test the application of vector engines with increased thrust and three-wing static stability. After adding all the technologies that can be used, such as the stable design and cockpit side bars, to what level can the maneuverability of an aircraft be improved? ?But this is not important anymore. By 1997, MiG itself had lost all hope. It realized that it had no future by continuing to export fighter jets, and began to consider transitioning to other tracks. The commercial machine department that Kravchenko is responsible for is an unfortunate product of this idea. MiG had almost no experience in designing passenger aircraft or transport aircraft. With the alliance disbanded and no investment left, it would be a complete fantasy to create a commercial model from scratch. So we can only choose to stay together with Tupolev Company, a fellow sufferer. It was during this process that Kravchenko and Klimov met. To put it simply, the content of the cooperation between the two parties is the transformation of MiGs Nizhny Novgorod factory into the production of Tupolev passenger aircraft. Unlike the situation of Sukhoi and MiG, Tupolev did not obtain a factory belonging to his own group during a series of reorganizations in the early 1990s. The Aerostar SP in Ulyanovsk and the Kazan Aircraft Manufacturing Association in Kazan are independent units and are not subject to Tupolev''s control. To make matters worse, after China showed its willingness to purchase the new Ilyushin 76MF/78MF in bulk a few days ago, anyone with a discerning eye can already see that Ilyushin Company will definitely move the production line originally located in Tashkent back to China. ??So the two young men began to flirt with Ilyushin at the speed of light, which made Tupolev, who had no orders for the time being, panicked and angry but had no solution. In order to win over at least one of the manufacturing plants, Klimov finally signaled that he could export the Tu-22M3 bomber to friendly countries. A few years ago, the Chinese Air Force delegation showed some interest in this model. At first they thought this operation would have immediate results. ??However, in the past, you ignored China, but today''s China is beyond your reach. The other party actually said that they are no longer interested in medium bombers. If they can sell the Tu-160, they can consider it. ??Its so funny, lets not mention that it is impossible for this thing to obtain a federal export license. Even if Yeltsin doesnt care, Tupolev will not be able to build a new aircraft at all now. ?So after what he thought was his trump card failed, Tupolev also panicked - ??If we can maintain complete aircraft design and manufacturing capabilities, it may not be impossible to make a comeback in the future. But if it degenerates from an aviation production complex into a mere design institute, it will basically be completely finished. So the two companies, which were on the verge of despair, hit it off and decided to move Tupolev''s passenger aircraft production line to Nizhny Novgorod, so as to maintain a relatively stable production capacity. ?The idea is very good and the execution process is smooth.????The only problem is, there are still no orders. ??A few scattered orders from China can only barely sustain the company''s life, and it is far from being able to come back to life. After losing the relatively closed market of the Economic Cooperation and Development, although Tupolev''s several new models of passenger aircraft are not far behind in terms of performance, they are obviously no longer able to compete with Boeing and Airbus'' complete model series. Whats more, there is also the barrier of airworthiness certification. With the disintegration of the alliance, Russia''s reputation among many third world countries has plummeted, but few countries are willing to purchase a passenger aircraft model that lacks European and American endorsement. Hence, seeing that China and Europe have mutual recognition of airworthiness, Klimov is basically equivalent to a person who is about to drown suddenly having an oxygen bottle placed on his face. ??On the other hand, Kravchenko, who was pulled over by him, was calmer. "Vasha (Valentin''s nickname), I understand you are anxious, but it has been clearly stated above that the scope of mutual recognition of airworthiness only includes regional aircraft, and they must be designed and produced by companies within mainland China. , we can''t take advantage of this loophole..." "Why not?" ??Klimov turned around and looked at Kravchenko with a determined expression. Actually, when China went to Tashkent to inspect the Il-76 production line, China had private contact with one of our representatives and expressed its willingness to produce Tu-204 series passenger aircraft in their country based on the form of the Su-27. The other partys requirements include the transfer of a full set of technology property rights and the improvement of the aircraft in accordance with Chinese standards, so the company was still hesitant..." Its not that you wait... Kravchenko was stunned when he heard this: In the field of commercial aircraft, arent we partners? How come I dont know about this at all? Also, if you move the passenger aircraft production line to China, what will happen to our companys factory in Nizhny Novgorod? Also, if even the design standards are modified in accordance with Chinas requirements, can your aircraft still be called Tu-204? Wouldnt it be completely sold to them? ?Faced with such a one-button three-combination, Klimov knew that he was in the wrong and was not easy to answer, so he skipped the first question. Ahem There is a saying in our hometown that once you have decided to sell your business, you should enjoy the process. Now our company is about to go bankrupt. We are just selling a few aircraft models. I believe that even if Comrade Tupolev is still alive, he will not have any objections..." "Don''t worry MiGs. First of all, with the level of China''s aviation industry, it is impossible to achieve complete domestic production right away. At most, the final assembly process should be completed first. You can continue to produce parts and subsystems for at least the next ten years. It is not impossible. way out. Besides, as long as the sales of the models are opened, the domestic market will still have to purchase them. Will they not have to be produced in Nizhny Novgorod? No matter what, we have to survive first..." ??Klimov is very eloquent, but it is a pity that he does not know the Chinese existentialist master Mr. Yan Baichuan, otherwise he would have to say "Existence is everything, everything is for existence." Kravchenko opened his mouth. He subconsciously wanted to refute the other party''s statement, but found that there was no way to do so. ?After briefly running through Klimovs logic line in my mind, it even makes sense. ?So it took Kravchenko a few seconds to excuse himself. I understand, you are right. (End of this chapter) Chapter 325 Figure 334 passenger plane and PL-12 air-to-air missile Chapter 325 Figure 334 Passenger plane and Thunderbolt 12 air-to-air missile ??Despite convincing himself to accept the other party''s idea, Kravchenko quickly thought of another question: One more thing, the take-off weight of the Tu-204 is 100 tons, which is completely outside the scope of their agreement... ?However, for the thoughtful Klimov, this kind of thing has naturally been considered before. Picture 204 is their request, of course we also have our conditions... ?He replied with a look of hatred on his face, "The overall design of Figure 334 can be slightly reduced, and then bundled together for negotiation. Anyway, it is impossible for China to directly fly to a 100-ton mainline passenger aircraft in one step. There is an aircraft two levels lower for training, and they must also Will not refuse. Figure 334 is a large regional passenger aircraft with a take-off weight of 45 tons and a seating capacity of 95-110. Compared with traditional regional aircraft such as EMB145 and CRJ200, the biggest advantage is that it uses the same standard cabin as mainline aircraft. Therefore, The comfort is much better than competing products. Since it uses the same series of cockpit configurations as the Tu-204/Il-96, the control convenience and glass degree are both good. ?Of course, the three-person crew was also inherited. Fortunately, the price is as low as ever, only about half of that of aircraft of the same class. ?And as long as 10 seats are cut off and a wholly-owned subsidiary is established in China to engage in first-hand joint research and development, it can fully comply with the requirements of the Airworthiness Mutual Recognition Agreement. Kravchenko next to him almost couldn''t hold back after hearing this answer. ?It doesnt matter if you sell yourself, its still buy one, get one free. Others only ordered one, but you just took out a pair of sisters... He sighed heavily in his heart Its so hateful! Why can''t our company come up with such a model... ? ? MiGs only commercial model aircraft currently available is the MiG 110 designed two years ago, but its positioning is highly similar to the MA60 (MA=Modern Ark) currently in front of us. I am afraid that the Chinese people will not buy it. Fortunately, Klimov does not really intend to completely abandon this hard-won business partner. "Varoja, if we can really reach such an agreement with China, then your factory will be responsible for providing parts for assembly and production technical guidance, and I''m afraid it will last for a while, so after returning to China this time, You may need to mobilize your staff." "this" Kravchenko looked to the side with surprise and a little more emotion. ?Although he is an executive of MiG, he also knows a thing or two about the situation of his old rival Sukhoi. ? As the saying goes, it took forty years for Hedong and forty years for Hexi. This time is not as good as it was in the 1950s. If there is an opportunity to work in China, wherever mobilization is needed, they will rush to go. ?The other party said this, obviously to give them a hand at this critical moment. At the same time that they finally determined this matter, with the gradually amplifying roar, the Su-37 finally completed its performance and landed steadily on the runway behind them. On the other hand, it was not until the next day that Chang Haonan was watching a briefing in an office of the Commission of Science, Technology and Industry for National Defense while watching the opening ceremony performance of the Paris Air Show on TV news - ?After completing the **** for the engine ground test of the No. 10 Project in Chengdu, he returned to the capital with no work at hand. I took the graduation certificate and degree certificate by the way. ?With his current situation, it is definitely not necessary to attend the graduation ceremony on site, but the certificate must be handed over to him. Now, it is the day after he officially received his bachelor''s degree. At last its not a high school degree. As a reborn person, Chang Haonan knew that the Su-37 was just for verification. The relevant technology would be used in the Su-35BM and then the mass-produced Su-35S. In addition, he had seen many of its flights in his previous life. Performance, so naturally I am not very interested. ??The reason why he came over specifically to read the briefing was because he was paying attention to two other things. First, at this air show, the Beriev Aviation Technology Complex () and the David Aircraft Manufacturing Company (IAI) signed a contract. The former will be responsible for improving a mass-produced A50 early warning aircraft. It is used to replace the Falcon radar system developed by the latter. The final customer is the Chinese Air Force. It also means that the "Ring Project" has officially entered the prototype manufacturing stage. Although Chang Haonan now has considerable influence, it is impossible to stop a project that has already signed a contract and paid a deposit with just one mouth. All he can do now is follow up on the relevant situation and strive to launch the air police as soon as possible. 200 early warning aircraft, so as to prevent IAIs behavior of releasing pigeons from affecting the overall progress of Chinas early warning aircraft business. ? To take a step back, in this contract, although IAI eventually breached the contract, faithfully completed the aircraft design work and left a lot of technical data, which can be regarded as saving trouble for the future Air Police 2000. Second, Dong Bingyin, the model chief engineer of the Luoyi Air-to-Air Missile Research Institute, also known as the 014 Center, led a team to contact the Russian Onyx Design Bureau at the air show and formally determined the project to jointly develop active radar-guided medium-range air-to-air missiles. The two parties will launch the project on 9B -1348 seeker, we will jointly develop a new 9B-1103M seeker, but the missile body will be completed independently by both parties. ?This project has actually been advanced for a long time, and even the overall design of the missile is close to completion. However, it has been self-funded by the 014 Center before, and it was not officially established until recently. ?In the original timeline, the final result of this cooperation was the two air-to-air missiles, the R77-1 and the Thunderbolt 12, which can be called twins from the same mother. In fact, due to the fact that there are too many high-priority projects at the front and that China''s airborne weapons developed relatively smoothly in the previous life, Chang Haonan has not focused on airborne weapons since his rebirth. I think about it this time because when I was in the 611 Institute, I suddenly saw Yang Baoshu, who was in the advanced stage of lung cancer. Because Dong Bingyin, the chief engineer of Perak 12, also died of a heart attack in June 2000 due to overwork. Compared to Yang Baoshu, who has no chance of recovery, this person''s situation still has a chance to be saved. ?Of course, Chang Haonan himself is very busy now, and it is no longer possible to spare energy to directly intervene in the Thunderbolt 12 project. However, as we did with Thunderbolt 11, it can still be done by providing some key technologies. ?While he was thinking about this matter, the door of the conference room was suddenly pushed open. The person who walked in was Huai Guomo, deputy director of the Science and Technology Commission, wearing a summer uniform. Director Huai? Chang Haonan put down the information in his hands and raised his head, and found that the other party was still holding a large pile of portfolios. Apparently he wanted to talk about something, so he quickly stepped forward to take it and put it on the table. Its not about the deputy director of the Science and Technology Commission, but the main reason is that Huai Guomos health is not very good and he is really struggling. I heard from the teacher before that you led a team to conduct inspections in Uzbekistan and Russia "I''m back now. I came here today just to talk to you about this matter." Huai Guomo took out his handkerchief and wiped the sweat from his head, then sat on the chair next to Chang Haonan. Just as he was about to say something, he caught sight of the information on the table out of the corner of his eye. Perak 12...Lao Dong has been working on this project for almost 5 years, and it has finally been achieved..." As the deputy director of the Science and Technology Commission, he naturally knows about the existence of this project. In fact, Huai Guomo witnessed the ground power test of PILI 12 at the end of last year. Why, are you also interested in this project? Additional update for last months monthly ticket holder [RockU Unruly Soul] (End of this chapter) Chapter 326 Passenger aircraft, C808 and C909 Chapter 326 Passenger Aircraft, C808 and C909 Its not really an interest. Chang Haonan shook his head slightly. The Paris Air Show is, after all, the largest aviation show in the world today. I just want to track the trends in our country and see if there is any place where I need to provide technical support within my capabilities. There is no way, he can''t just jump into the trap and say, "I predict that General Master Dong will face a disease in three years'' time, and I''m currently trying to think of ways to help him avoid the disaster." ??Now we are almost entering the 21st century, and the craze for researching special abilities has long passed. Saying such words may only be regarded as amusement or curse. So in the end we can only give an answer with full compatibility. Fortunately, Huai Guomo just asked casually and didn''t pay much attention to this matter. ?Although the purpose of his visit this time is also related to the Paris Air Show, the focus is still on the large aircraft project that the entire Science and Technology Commission is paying close attention to. Although the merger between Boeing and McDonnell Douglas has not yet been settled, Europe and China also know that it is impossible to finally stop this kind of thing. It would be of no benefit to everyone to really break up with the Americans, so they have begun to consider their own The conditions put forward. The long-pending merger has caused far more damage to McDonnell Douglas than to Boeing. The MD90 project of Hufei has basically stalled, and many engineers sent by the United States have been recalled to work in the country or even dismissed. ?After investigation, the working group sent by the Science and Technology Commission concluded that the resources currently received were not enough to manufacture a complete passenger aircraft, so the entire Shanghai Aircraft Company once again fell into a situation of halting work and waiting for materials. It''s just that this time, anyone with a discerning eye can see it. I''m afraid I can''t wait. Huai Guomo slowly took out one piece of information from the file bag in front of him and placed it on the table: This morning, news came back from Paris. After the air show closed last night, people from the Tupolev and MiG families took the initiative to contact us. ?Chang Haonan perked up and picked up the information closest to him from the table. is a summary of the meeting. ?Similar to all negotiations, the first contact is just to test each other''s requirements, so there are no clear conditions involved. But judging from the fact that almost a quarter of the questions asked by Russian personnel, especially Tupolevs team leader, were about the agreement between China and Europe, it is obvious that they are greedy for the huge power hidden behind it. market. "Director Huai, I understand Tupolev, but MiG..." Chang Haonan flipped through the twenty-odd pages in his hand to the end, but he didnt find that the entire project had anything to do with MiG Company. ? He ??did know that the other party had several passenger aircraft projects in the late 1990s, but they were basically in the drawing-out stage. The only MiG-110 that had been launched also coincided with the positioning of its own MA60. "Oh, because in the future Tupolev''s commercial aircraft will be produced at MiG''s Nizhny Novgorod factory, so if we really reach an introduction agreement like Project 11 with the other party, then MiG people will also participate. Huai Guomo, who had just returned from an inspection trip to Russia, naturally knew the most about some details. Is there such a thing? I dont remember that they have a manufacturing plant in Kazan... In the original timeline, the MiG company, which failed to find a stable market for the improved MiG-29, eventually declined completely, while Tupolev relied on dozens of orders for the Tu-204 in Russia and the support for the MiG-29 at the turn of the century. Da Mao managed to survive on the dozens of Tu-160s he got back from Er Mao for repairs, and managed to survive until the new Tu-160M2 order was placed. As for what happens next, Chang Haonan doesnt know. "Because of our previous contact with Ilyushin, the two factories in Kazan and Ulyanovsk have begun to move frequently, preparing to take over the business in Tashkent and switch to the production of the new model IL-76MF, Tupolev There are no orders here, so we have no choice but to make preparations. MiG is also in trouble. " Huai Guomo suddenly laughed when he said this: "About this, Xiao Chang, you were right before. You can count everything one by one." "I" Chang Haonan was a little confused by the sudden compliment. He didn''t even know about these things before, and he really couldn''t see anything... Fortunately, Huai Guomo continued: "Comrade Yang Shuyu from the Navy has already told us that Tupolev relaxed his tone to us and said that Tu-22M3 bombers could be exported. This matter was very controversial at the time, and representatives of the Navy and Air Force were immediately He couldnt make up his mind, but in the end you helped him determine his objections. In hindsight, this should be a move for Tuju to save itself. With the order, it can seize at least one factory to maintain production capacity and wait for changes. "As a result, Tupolev did not expect that we, who had some interest in Tu-22M3 in previous years, did not respond at all this time, catching them off guard. No, the attitude towards passenger aircraft has softened. " Chang Haonan suddenly realized. ?Tupolevs current situation is actually similar to that of Hufei, both of which are facing the situation of being forced to suspend production due to lack of orders. And because they do not have their own production capacity, once production ceases, supporting factories are likely to find another way to make a living. The aviation manufacturing industry, once it stops for a few years, is not that easy to recover. ?Furthermore, customers who were originally willing will definitely be affected after discovering that you have lost your production capacity. So from a purely logical point of view, it was indeed Chang Haonan''s original words that led to Tupolev''s current crisis, which in turn prompted them to actively extend an olive branch in the field of passenger aircraft. Of course, the details in between are all imagined by Huai Guomo. In fact, Chang Haonan simply felt at that time that a simple supersonic bomber would not significantly improve the combat effectiveness of our army when the range and bomb load were not significantly improved. Thats all. But no matter how you say it, the result is always good, and it does make sense. So he accepted it logically: "There is no way, our financial resources are limited now, so we can only choose the most important models first. Judging from the current situation, we must obtain the production capacity of a medium-sized passenger aircraft to help Shanghai Airline maintain its business The production line, workers and team are the top priority. ?Since the leadership of the civil aviation industry was also taken over by the Commission of Science, Technology and Industry for National Defense in the second half of last year, Hufei, which is responsible for the production of large aircraft, has naturally been fully integrated into the system management of the Commission. ??People have already accepted the letter of nomination, so naturally they need to be given some sweeteners. You can''t just enter the military industry system and you can''t even get orders. It will be ugly to say it out. Of course, having said that, at this time in the last life, Hufei was still wavering between two completely dead-end directions: continuing to develop the MD90 and turning its head to produce the AE100. Now it is much stronger. Yes, but in addition to the Tu-204 that we are focusing on, Tupolev has also proposed another model, which is a regional aircraft with about 100 seats, the Tu-334. Huai Guomo said and pushed another piece of information in front of Chang Haonan. "When I went to inspect, I saw this model there. It''s not very big, and its take-off weight is a little smaller than our Y-8. It''s over 40 tons, which can basically suppress the upper limit of the mutual recognition agreement we reached with Europe. , the other party probably also wants to use us to obtain the airworthiness of European models, so that even if it cannot be sold to the EU, it will be easier to export to third world countries. " What we are considering is, is it possible for us to build a 40-ton regional airliner all by ourselves? Obviously, after experiencing various surprises in the past year, the Science and Technology Committees ideas have become wild. After all, the 60-ton Y8 has been built, and the 40-ton regional airliner seems to be able to handle it. Chang Haonan was a little embarrassed when he heard this idea. ?Although he has been cheated, it is not the kind of violent cheat that turns directly into a violent cheat. The Basic Law still needs to be abided by. ?The design principles of passenger aircraft and military aircraft are completely different. Since comfort and economy issues must be taken into consideration, the difficulty is actually much greater than that of military aircraft of the same level. Apart from anything else, the ARJ21-700, which was basically the same level as the Tu-334 in its previous life, received a lot of foreign technical support. It was designed starting in 2002, and it was not until 2006 that the construction of the first prototype began, and it was delivered for operation in 2015. . Even if Chang Haonan focuses his subsequent work on passenger aircraft, based on China''s current overall technological level, this process will take at least three or four years. I''m afraid Hufei won''t be able to wait until that time. ?So he thought about his words and replied: If you spend a few years designing, its not necessarily impossible "But based on the current situation of Hufei, the top priority is to put a model into production as soon as possible to re-establish the confidence of employees, especially front-line workers. This year is catching up with the wave of layoffs from state-owned enterprises. If the factory falls into a long-term shutdown, I am afraid it will have to Peoples minds change. "Um" ?The angle mentioned by Chang Haonan made Huai Guomo fall into a brief thought: Also, there is one more thing. He continued to increase his bets, "Similar to the situation with the AL31F engine on Project 11, because the PS90 engine used in Figure 204 has a wide range of installation targets, the Perm Engine Factory may not be willing to transfer power system-related technology to us, but the D436T1 engine on Figure 334 You can definitely fight for it and get it together with the plane." "The reason is easy to explain. In order to comply with the requirements of the Mutual Recognition Agreement on Airworthiness between China and Europe, the localization rate of the aircraft must be maintained above a certain level. For the Tu334 model, Tupolev is definitely better than us. Dont worry, and the Ivchenko-Progressive Design Bureau is only breathing its last breath now, so the resistance should not be great. D436T1 is a 7.5-ton high-bypass turbofan engine of the same level as the CF34-10A. The most valuable thing is that it is almost the only model that has an advantage in fuel consumption compared to its American counterparts. Moreover, it is difficult for Ermao to obstruct the technology transfer of D436 like the D18 or D36 engines, because the intellectual property rights of this engine are a mess. The Ufa Engine Industrial Complex and Salyut Aircraft Engine Company also control about half of the production capacity. and property rights. ?????????????????????????????????????????????????????????????????????????????????????????????????????????????????? This is something Soros will soon experience. In short, if this operation is successful, it will save Chang Haonan at least two to three years of effort. Such a bargaining chip obviously easily persuaded Huai Guomo: This is indeed a big problem, I will report your opinions to it... "By the way, if the contract is generally signed according to these conditions, then the future Tu-334 and Tu-204 will become highly customized, and our country can obtain fully intellectual property models, just like the J-11, we should also have our own Do you have any ideas about the name? Is this... ?Chang Haonan couldn''t help but smile. The naming method of Huaxia''s large aircraft in the previous life is actually good and can be directly copied: Airbus planes start with A, and Boeing planes start with B, so well use C, which happens to be the first letter of China. We in China value nine, so the first mainline passenger aircraft produced by the Shanghai Aircraft Factory can be called C909, just like Boeing, followed by 919, 929..." As for the branch line, the grade is still a little lower after all. You can settle for the second best and use 8. The first one is called C808, which is also an auspicious number..." While the two were chatting and laughing, the naming method of Huaxia C-series passenger aircraft was decided. (End of this chapter) Chapter 328 Shangda Tianting (for last month’s monthly ticket financier [Ro Chapter 328 Up to Tianting (Added update for last months monthly ticket financier [RockU Unruly Soul]) Since 1994, the State-owned Assets Administration no longer existed as an independent department, until the State-owned Assets Supervision and Administration Commission, which is familiar to the world, was established in 2003. In the intervening nine years, the personnel and organization of state-owned enterprises have been jointly managed by multiple departments. Among them, ZY Enterprise Working Committee is the main one. ??The State Economic and Trade Commission is even more influential. Its predecessor was the State Economic Commission, which was as famous as the State Planning Commission in the era of planned economy. It was responsible for the execution level of the entire national economic work. It goes without saying about the Ministry of Finance. ?At the end of the 1990s, there is basically only one thing that can allow these three departments to jointly issue a document, and that involves the disposal of major state-owned assets, organizational changes in state-owned enterprises, or personnel appointments. The disposal of state-owned assets has nothing to do with Chang Haonan and the others, and the personnel appointments that can directly report to the three ministries and commissions are at least the level of the first and second leaders of large enterprises. Even if Chang Haonan goes against the grain, it is impossible for him to do it at the age of 22. To take up such an important position, it is only possible to involve the second item, which is the change of corporate organization. Opening the letter paper, I saw that it was indeed the case. Letter for soliciting opinions on the reform of the national aviation industry management system ?Chang Haonan was stunned at first, and then suddenly became enlightened. ?According to the original timeline, in 1999, the current China Aviation Industry Corporation was split into two, becoming Aviation Industry Group One and Aviation Industry Group Two. If you calculate the process, it is almost time to solicit opinions now. Judging from the results, this separation is definitely a failure. Even if the original head office is split into two, we are still a large central enterprise under the leadership of the Commission of Science, Technology and Industry for National Defense and belonging to the State-owned Assets Administration. Not only can it not achieve the expected goal of improving efficiency through free competition, but it has also dispersed the original Weak strength. As an asset-heavy, high-tech industry, the aviation industry cannot improve efficiency simply by relying on free competition. ?Since entering the second half of the 1990s, the trend in the global aviation manufacturing industry has been large-scale integration. Naturally, it is not a wise choice to split up at this time. Finally, after about ten years of turmoil, in November 2008, Group One and Group Two merged again and re-established Aviation Industry Group Co., Ltd., returning to the path of resource integration. So Chang Haonan must have objections to this matter. As for whether this opinion is really useful, it depends on the operation and, of course, some luck. He does have a certain voice and influence now, but it has not expanded to the extent that he feels that he can influence the general direction by just saying something. The content is a bit long, please sit down and read it slowly. ?Du Yishan motioned to Chang Haonan to sit on the sofa first, then took out a tin tea can that Chang Haonan was familiar with from the drawer and started making tea Since the entire academy knew the location of his treasured tea, Dean Tang immediately destroyed it. ?Later, the tea can arrived in Du Yishans office. ?This letter was indeed longer than Chang Haonan imagined, so it took him almost half an hour to read it. After raising his head, his first question was: This letter...are you sure it was sent to me? It is not surprising to have such doubts. Originally, Chang Haonan felt that as a young expert with a small reputation within the aviation industry system and still maintaining a very close relationship with the Science and Technology Commission, Chang Haonan felt that even if such a big thing as the restructuring of the aviation industry was just a formality, he would ask for advice from himself. It is normal to have some opinions. But after reading it, I discovered that it involves far more than that. Simply put, the letter mentioned three things. One is what Chang Haonan just thought of, splitting the Aviation Industry Corporation into two. Second, Huai Guomo and Ding Gaoheng both told Chang Haonan before that a large aircraft industrial park independent of Shanghai Aircraft should be established to undertake the aviation manufacturing industry transferred from Europe and the United States and outside the Chinese standard system. The third is to restructure the entire civil aviation industry. After entering the second half of the 1990s, the era of unreasonable profiteering in the civil aviation industry ended. Major airlines competed to lower prices in order to compete for passenger flow. However, when a large number of aircraft and aviation materials needed to be imported, and management levels did not improve significantly, Companies such as Northwest Airlines have fallen into insolvency. Northern Airlines and China Southern Airlines are in slightly better conditions, but they are still losing money. Although the remaining Caiyun Airlines and Southwest Airlines are doing well, their scale is too small and it is not worth it. Maintain a high-level management team. Therefore, the above plan is to integrate Air China, China Eastern Airlines and China Southern Airlines as the main bodies, and integrate the current nine airlines directly under the Civil Aviation Administration into three major aviation groups, which will also facilitate competition with foreign airlines. In fact, there is a very close connection between these three things. ??Due to Chang Haonan''s intentional or unintentional efforts in the past year, the domestic civil aviation industry has not entered the state of being in the same state as it was in the late 1990s. Although the currently available models are a MA-60 and a Y-12, having signed an airworthiness mutual recognition agreement with Europe and conducting cooperation with Europe in the field of aviation meteorological safety, with me as the main one, obviously I still gave a warning to my superiors. A powerful shot in the arm. Hence, there is a huge difference between the Aviation Industry Corporation split plan and the original timeline. According to the statement in the letter, Group 1 will retain the current situation of the head office unchanged, and will branch out to Group 2 to take over the entire Hufei Group, as well as the commercial aviation departments of the two major aircraft manufacturing groups, Haojing and Bingcheng, which is independent of Hufei. The large aircraft industrial park will also be managed by the Second Group after its completion. Simply put, one group is mainly responsible for military use, and the second group is mainly responsible for civilian use. It is indeed much more reasonable than before. At least Chang Haonan cannot judge the pros and cons immediately. The relationship between the civil aviation restructuring and the other two events is because it involves a rather special airline. China United Airlines. At this time, there is only about a year left before the "military is not allowed to do business" incident. Many enterprises with the military as the main body have begun to liquidate or restructure. Among them, as heavy asset industries, they also operate companies including the Il-76. United Airlines, which has many military transport aircraft in its fleet, is naturally one of the key targets of attention. According to the meaning of the letter, United Airlines is also handed over to the aviation industry group II after the separation. This can ensure that even if the performance of domestically produced civil aviation aircraft is slightly worse, especially in terms of operating costs, there will not be no users at all. , it can be regarded as the country stepping forward to provide a guarantee for China''s civil aviation industry, which has finally started to take off after many twists and turns. Absolutely big move. ??And its a combination punch. You must know that the large aircraft industrial park did not exist in the previous generation, and the reorganization of civil aviation was not carried out until 2002. ?Now we have to put three things together to complete. ?Such a century-old plan that will affect the development of the aviation industry, and now a solicitation letter was given to him. When Chang Haonan finished reading the letter, he was indeed in a trance for a moment. Although the Science and Technology Commission said a few months ago that his opinions would be taken into consideration when selecting the location for the large aircraft industrial park. However, there are some differences between taking it into consideration and issuing a formal letter. That''s why I had the question that just popped out of my mouth. Of course its for you, thats what it says on the envelope. Du Yishan smiled and patted Chang Haonan on the shoulder. "You can also see that this incident will have a great impact. The only people in our school who received this solicitation letter are you, me and Liu Zhenxiang. I met with Academician Liu this morning and felt that we should come up with one Come to a unified opinion. However, the deadline for the reply given above is August 31, so there is no need to rush. We will all go back and think about it carefully, and we will meet again then. ?Chang Haonan put the letter in his hand back into the envelope and nodded. Okay, teacher. ? Tang Lintian, who was sitting on the sofa not far away, looked at Chang Haonan, who had his back turned to him, and shook his head helplessly. ??When he received three envelopes with the confidential personnel this morning, he thought that the third one besides Liu Zhenxiang and Du Yishan was for himself. result NND, the gap between humans is sometimes greater than that between humans and dogs. ??Tang Lintian, who was a little sad and angry, thought this way. (End of this chapter) Chapter 329 Nominated by the person in charge of a state-owned enterprise, a 3 million project Chapter 329: Nomination of the person in charge of state-owned enterprises, three million project (4K) "By the way, teacher, Dean Tang, I came to you this time mainly for another matter..." After receiving the letters sent to the college by the three ministries and commissions, Chang Haonan finally found the opportunity to explain the purpose of today''s visit to Du Yishan and Tang Lintian: I received another letter yesterday from the Committee of Science and Technology, inviting me to serve as a member of the expert advisory group in important scientific frontier areas of the 973 Program. While speaking, he unfolded the letter he had taken out as soon as he entered the door and handed it to Du Yishan in front of him. I would like to ask your opinions on this matter. ?Du Yishan took it in his hand, lowered his head and browsed it from beginning to end, and then motioned to Tang Lintian, who was sitting on the sofa not far away, to take a look. The latter just glanced at it quickly and returned it to Chang Haonan. He knew that he couldn''t get involved in such matters. Chang Haonan came to ask because people respected him as the dean, but when Du Yishan was also present, there was no need to make any statement. Besides, there is no way to refuse this kind of thing. ??What worries Tang Lintian the most now is that as Chang Haonan''s title continues to grow, he has become more and more worried about gains and losses. ??If such a talented future Ph.D. doesnt want to stay after graduation, then the school will basically be unable to provide any corresponding bargaining chips... Du Yishan, who was behind the desk, picked up the tea cup. He didn''t answer until Tang Lintian had finished reading: "You can make your own decision on this matter. As long as you have spare energy, I still recommend that you proceed. I judge that the 973 Project will be the highlight of the country''s scientific research for at least the next ten years. If you can be in it Taking on a position, even if it''s not a management position, can be beneficial to both you and the school." Also, although the 973 plan is a project hosted by the Science and Technology Committee, you can rest assured that Ding Gaoheng is not that narrow-minded. Besides, the relationship between the two departments is already relatively close, so there will be no problems with the Science and Technology Committee. A few months ago, Chang Haonan guessed from the exchanges between directors Ding Gaoheng and Song Jian that the two parties had a close relationship. This time it was completely confirmed. In fact, this invitation letter was not sent through the school like the solicitation letters from the three ministries and commissions just now, but was sent directly to Chang Haonan himself, which can already explain a lot of problems. ??This time I came to Du Yishan specifically, on the one hand to get reassurance, and on the other hand to respect the instructor''s right to know. You cant let the other party find out through an internal announcement that one of your students has become a consultant for the 973 project. ?Then Du Yishan must be considered a joke in the education circle... In this case, I will go back and write a reply to the Science and Technology Committee first. After getting the answer he wanted and receiving an unexpected gift package, Chang Haonan stood up and said goodbye to Du Yishan and Tang Lintian. Well, remember to think about those three things seriously when you go back. ?Du Yishan put back the lid of the cup in his hand, his expression showing uncontrollable joy ? Judging from the current trend, Chang Haonan is no longer just able to inherit his mantle. At the same time, the State Economic and Trade Commission. Ding Gaoheng, dressed in casual clothes, is sitting in the office of Wang Yuzhong, director of the Economic and Trade Commission. At hand is a half-open briefcase, the contents of which have obviously been taken out. There are three documents on the latter''s desk. From the National Science and Technology Commission, the Commission of Science, Technology and Industry for National Defense and the Chinese Academy of Sciences respectively. Old Ding, its very difficult for me to make such a request now... ?Wang Yuzhong put out the cigarette that was almost burning his fingers in the half-full ashtray, raised his head and replied with a distressed look on his face. I wont come to you personally for things that are not difficult to handle. Ding Gaoheng seemed to have anticipated the other party''s reaction, and replied calmly, "The proposal submitted by the Academy of Sciences has made it very clear that the software industry is one of the weakest technical fields in our country. It is also listed as a key development direction in both the 863 Plan and the 973 Plan, and the software industry and The traditional industry, even the computer hardware industry, is different. It needs to continuously iterate, fix and upgrade versions and content, otherwise it will become obsolete very quickly. So if you want to continue operating and compete with similar foreign products, you still need a company. Considering the overall situation of national modernization, it is best for such a company to be established as a wholly state-owned company and then delegated to a reliable company. Comrade is responsible for operation and management. Seeing Ding Gaoheng continue to insist, Wang Yuzhong lit another cigarette, took a deep puff, and then continued to answer: "Old Ding, I understand all the things you said, but the current state-owned enterprises are in charge of three heads. I cannot have the final say alone. Moreover, this year and the next two years are the most critical and chaotic stage of the transformation of state-owned enterprises. At present, The principle is to not build new buildings if possible, and wait until this round of clearing out and restructuring is over. This is not just for you. Even if it is as large as a telecommunications company, it wants to spin off the mobile communications business and establish two new companies. It was pushed to 1998 because of this matter. "Furthermore" The latter hesitated for a moment, turned the top document to the last page, then turned it around, facing Ding Gaoheng with the printed side: The person in charge of the company recommended by the Academy of Sciences was born in 1976 and is still under 23 years old. Although our countrys laws do not clearly stipulate the age of company managers, is this age a bit too exaggerated? ??The personal information printed on it is naturally that of Chang Haonan. ??If we trace the origin of this matter, we have to go back to the previous days. After the ground start-up experiment of the J-10 successfully passed the relevant acceptance by the General Armament Department and the Commission of Science, Technology and Industry for National Defense, due to some twists and turns during the start-up process, and many quality problems were discovered during the re-inspection of prototype No. 1001, Chief Engineer Xue Chishou and Rongfei General Manager Yang Baoshu wrote a report specifically to the Science and Technology Commission and the General Equipment Department. In fact, the core meaning of this report is to summarize experiences and lessons, and to request disciplinary action. It is a standard operating procedure after a major accident hazard occurs. On the one hand, problems and setbacks encountered in scientific research work are objectively unavoidable. In addition, the two people''s proactive attitudes did not cause any irreparable losses. On the other hand, during the acceptance process, Chang Haonan and Lin Hui, who were not members of the 611 Institute and the 132 Factory, and participated in the entire fault detection and troubleshooting process, both made it clear that they believed that this could not be regarded as a liability accident, but only due to the level and experience of China''s aviation manufacturing. Technical problems caused by deficiencies. Hence, in the end, no organizational treatment was carried out for Xue and Yang. However, in the reporting materials and acceptance materials, it was mentioned that Chang Haonan has recently made some research results in the field of numerical solutions to strongly nonlinear partial differential equations, and based on this, he developed a new generation of fly-by-wire flight control system. Surge prediction and active stability control systems for aircraft. Whether it was a reciprocation from Chengdu or a factual report, in the summary document afterwards, they directly stated that it was precisely because of the system developed by Chang Haonan that problems were discovered in advance and dealt with promptly during the trial run of the prototype. Only then did prototype No. 1001 be saved, and it can be said that the entire Project No. 10 was saved. In short, the calculation method developed by Chang Haonan is directly improved. This contribution is huge. At almost the same time, Du Yishan did not go through Beijing Hang University, but through the Academy of Sciences, and jointly submitted a proposal with several other senior academicians to establish a company with complete state-owned assets specifically responsible for the development and maintenance of software in professional fields. And Chang Haonan serves as the general manager, or the person in charge in other names. The company''s first product after its establishment will be a set of multi-physics comprehensive simulation modeling software also developed under the leadership of Chang Haonan. This type of software has repeatedly proven its effectiveness in almost all scientific research fields in the past year. of great value. ??That is, the document that is currently in Wang Yuzhong''s hand, making him look confused. Since the Economic and Trade Commission is not directly responsible for scientific and technological research, and most of the information about Chang Haonan is kept confidential, at least it will not be publicly publicized. Therefore, Wang Yuzhong, the director of the Economic and Trade Commission, has no impression of this name. He just won the first Chinese Youth May Fourth Medal. ?However, since Ding Gaoheng is here, he naturally cannot give up easily: "So our Science and Technology Commission and the Science and Technology Commission have also issued documents proving that although Comrade Chang Haonan is young, he has made significant contributions to national scientific research in multiple projects and is fully capable and qualified to serve as a small and medium-sized state-owned enterprise. The person in charge of the business. He pointed to the other two documents placed on the other partys desk: The Science and Technology Committee has hired Comrade Chang Haonan as a member of the expert advisory group in important scientific frontier fields of the 973 Project. Our Science and Technology Committee will soon hire him as the general consultant of the Seiko Project. Isnt this not qualified? Having said this, Wang Yuzhong also understood that there was no way he could completely reject it today. Leave aside the influence of the two ministries and commissions, even Ding Gaoheng himself still has some face. Whats more, theres also the letter of recommendation from the Academy of Sciences. ?Although there are only a few names signed at the end, they can make the whole of China tremble when they are read out. Forget about Du Yishan, Song Jian, Wang Xuan, and Lu Yongxiang. How did you invite Mr. Qian out? There are a total of 35 academicians of the Academy of Sciences and Academy of Engineering, and you directly selected 5 of them. Is this a reasonable stance? What does it mean to use force to oppress others? In short, I cant afford to offend him. But then again, how difficult is it to establish a new state-owned enterprise under the current situation of multi-party management... ??Wang Yuzhong, who was caught in the middle, felt like his head was getting big. Old Ding, dont continue to make things difficult for me. I think its better to do this. After lowering his head and thinking for a long time, he finally came up with a plan that had the best of both worlds. "A newly established state-owned enterprise is indeed not operable at the moment. The enterprise working committee that currently manages the organization and cadre team of state-owned enterprises is a new organization that has just been established for more than a month. All energy is basically focused on the reform of the aviation industry. Even if I do this for you, it will probably take a year and a half to two years to complete the entire process. This is still the most optimistic situation. If there are some secret obstructions or unexpected situations in the middle, it won''t count. Hearing this, Ding Gaoheng obviously wanted to say something more, but Wang Yuzhong raised his hand to stop him. The latter paused for a moment and continued: "So my idea is to find a local state-owned enterprise that is currently preparing for restructuring with a similar business scope. After the liquidation is completely completed, the Academy of Sciences will take over and operate it as a collectively owned enterprise for a period of time. If it really has a huge impact on the national economy, After the state-owned assets management model is straightened out, it will not be too late to upgrade it to a directly managed central enterprise. Moreover, in this way, the appointment of your 23-year-old person in charge does not need to be approved by the enterprise working committee, and only needs to be reported. " If this model is used, the new enterprise will be completely finalized by the end of this year or early next year at the latest. As for the period in between..." ?Wang Yuzhong hesitated for a moment. "Our Economic and Trade Committee has a Technology Progress and Equipment Department, which is responsible for guiding and promoting the construction of technological innovation mechanisms and the cooperation of industry, academia and research. Although because of the existence of your Science and Technology Committee and their Science and Technology Committee, this department had almost no actual business in the past, but its authority There are still some. In the name of joint development of industry, academia and research, we can allocate 200...er, 3 million yuan to you for the early development of software. " "I read what the Academy of Sciences report means. The company was established mainly to deal with subsequent product maintenance and upgrades. That means that the development work should be carried out in the form of a research group or a project team. When the development is completed, the company over there should also It has been transferred to the Academy of Sciences, so it can be seamlessly connected, how about it? ?Seeing that the other party proposed such a plan, Ding Gaoheng knew that it was almost the limit. Negotiation is nothing more than the art of compromise. Now that someone has taken a big step back, he cannot give in even an inch. As for the allocation that Director Wang mentioned, I dont know when Ding Gaoheng stood up with his briefcase and prepared to leave, then turned back and asked. At this time, Wang Yuzhong also realized that he had let go a little too fast just now, and he could actually pull back and forth a few more times. But if he said it out loud, it would be like throwing water away. He still had to face it, so he had no choice but to bite the bullet and give a guarantee: I will expedite the approval process for you, and the first payment will be received within a month! Ding Gaoheng, who won a three-million-dollar project, finally put a smile on his face: Then its a deal! One word is settled ?Wang Yuzhong showed a smile that looked like he was crying and watched the other party leave. Then he breathed a long sigh of relief and fell down on the back of the seat: This director is too **** hard to be... Note: There are a total of 34 academicians of the Chinese Academy of Sciences and Chinese Academy of Sciences in Three Dimensions, but in order to avoid harmony, the important role Du Yishan can only use original characters, and he was also included, so there are 35. (End of this chapter) Chapter 330 As a member of the 973 Project expert group, I would like to mention Chapter 330 As a member of the 973 Project expert group, it is reasonable to make some suggestions, right? The next ten days were a rare and relaxing time for Chang Haonan. In addition to officially receiving the two titles of being a member of the 973 project expert group and the general consultant of the Seiko Project, which are well-edited and well-paid, the only thing worth mentioning is that the textbook co-edited by him and Liu Hongbo has been proofread and delivered to the publishing house. Printed. ?But this doesnt require Chang Haonan to do anything, so during this period, apart from comforting his younger sister Chang Jiayao who is anxious about the college entrance examination every day, the most important thing he does is to write a proposal report on the project in the second half of the year - Thats right, in the 1990s, the college entrance examination was held in early July. It was not until 2003 that it was changed to the beginning of June, which is what people later became familiar with. As for the recommendations for the second half of the year, there are two main contents in the report. First, in synchronization with the No. 10 and No. 11 projects, the overall design of the turbofan 10 "Taihang" engine was officially started. Although the establishment of the third-generation high-thrust turbofan engine is almost the same as that of the turbojet 14, the latter can still rely on some references to advance stumblingly, while the former is completely like a tree without roots and water without a source. In short, it has been almost ten years now, and although I have done several designs, they are all unreliable on paper. The aviation industry and the 606th Institute naturally know their own level, so they have been focusing most of their energy on the less difficult turbojet 14. The few members who are focused on the turbofan 10 also conduct technical pre-research and track cutting-edge research. Lord. Fortunately, I didnt spend much money, so its not a loss. Now, the engineers of the 606 Institute have accumulated a lot of experience and data in the process of improving the turbojet 14 in the past year. The level of national economic development has also made great progress compared with ten years ago. In addition, Chang Haonan Its own capabilities are not the same as a year ago, and it can be said that it has the foundation to officially start the development of the turbofan 10 engine. On the other hand, the progress of China''s two third-generation fighter jets, one light and one heavy, has exceeded expectations. The J-10 has completed the ground engine start-up test and is basically certain to be able to make its first flight in the second half of the year. The two J-11 fighter jets that will be assembled by the 112 Factory were originally expected to It will be completed and rolled out by the end of the year, but judging from the current progress, it can probably be completed three to four months ahead of schedule. ?Although it seems that there is no possibility of the supply of AL31F/FN being cut off at present, Liulika-Salute has always refused to transfer engine technology. It is always not an option to rely on foreign countries for the core power of domestic third-generation aircraft for a long time. Hence, no matter in terms of conditions or needs, it is imperative to develop a new generation of turbofan engines! At the end of the first report, he also listed some related key technologies. For example, full three-dimensional digital collaborative design and numerical simulation, new generation active cooling technology, single crystal material development and casting, high-temperature alloys... Um I dont know if I dont have a column, but I dont know if I have a column. ?But theres nothing we can do about it, its hard to get through it. Fortunately, not all of these things need to be solved by Chang Haonan himself. Writing this, Chang Haonan suddenly remembered the solicitation letter he saw this morning. Although it is a little more reasonable than the situation in the previous life to divide military and civilian use into the first group and the second group, it is not much more reasonable..." He stopped writing and began to think about issues related to the reform of the aviation industry. ??If we want to really pay attention to aviation power, it would be better to do it in one step and directly separate the China Aero Engine Group in advance and be responsible for the research, development and manufacturing of aviation power. This is also the aviation system before Chang Haonan was reborn, and it is also the method adopted by the mainstream foreign aviation industry powers. After all, there is a big difference between aircraft design and aviation engine design. Chang Haonan was able to switch seamlessly because he played the game. It does not mean that other practitioners need to do the same. "This idea can be improved later..." Chang Haonan pulled a piece of paper from the table, wrote the idea on it, and then continued to write a second proposal. The content is about the heavy-duty die forging press that Chang Haonan has been considering since the Chinese New Year. Related basic research topics can be directly placed within the framework of the 973 plan, and then the results can be linked to the Seiko Plan. It just so happened that he could speak on both sides. In fact, during the production of the airframe of the No. 1001 prototype of Project 10, Factory 132 has changed the free forging process commonly used by the Chinese aviation industry in the past to the die forging process. The body frame of the J-11 is still provided by Russia. However, at the celebration meeting of the three gates, the 601 Research Institute already stated that they and Sukhoi have determined the improvement of replacing the original tailor welding method with die forging. The idea is that this can shorten a lot of production hours and also reduce some weight from the originally overweight body. But the body of the J-10 with a maximum take-off weight of 20 tons is basically the limit for the existing 30,000-ton die forging press in China. Whether it is the J-11, or a future domestic passenger aircraft, or what Jin Gui on the train mentioned 700MW hydropower units obviously require larger models. Since these things have been going back and forth in Chang Haonan''s mind countless times, his ideas have been flowing like a spring. It was only when he was preparing to write about key technologies according to the format of the previous letter that he finally got stuck. The first requirement directly related to the heavy-duty die forging press is the multi-physics simulation modeling software. ?But thats not bad. As long as the investment is raised, it wont take long to get the first version out. The key is that Chang Haonan does not have enough information at hand. According to Jin Guis previous statement, Qinghua University developed a 68,000-ton heavy-duty die forging press about ten years ago. ??If you look at it from the perspective of completing the project as quickly as possible, then it''s obviously much quicker to build on that than to start from scratch. Although it is not the largest in the world at 68,000 tons, it is definitely enough for now. ?The temptation to put it into production a few years earlier is obviously much greater than a title. Besides, the 80,000-ton one in the previous life will be built sooner or later. ? Its just that Chang Haonan didnt know how complete the design of that die forging press was and what kind of technical route it adopted. Qinghua University is not a university within the system of the Commission for Defense Science, Technology and Industry for National Defense. Chang Haonan''s only interaction there currently is Wei Yongming, who he had a relationship with before, but the latter is only a master''s student now, and he should still be in Shengjing. Being on a business trip, I''m afraid I can''t be of much help. ?With his current title, it would be okay to send a letter to inquire through official channels, but the speed would be too slow. ?Thinking of this, Chang Haonan screwed on the cap of the pen in his hand and called Du Yishan. As a senior academician, the latter should have some acquaintances in Qinghua University. I have opened an activity in the book review area to win some coins by participating in posts. Although it is a mosquito leg, everyone can still participate. It seems that there are not many people so far, and you can almost get it if you click... (End of this chapter) Chapter 332 Save China’s machinery manufacturing industry Chapter 332 Saving Chinas Machinery Manufacturing Industry ?Chang Haonan hesitated for a moment. In fact, he really didnt dare to guarantee it. ?After all, this thing requires a lot of investment, and the largest domestic production before was 30,000 tons. Now it has more than doubled, which is not in line with the spirit of gradual progress and small steps. ?However, considering the current support for the aviation industry from above, we are still 80-90% sure. Among other things, with this thing, many parts of Airbus and Boeing aircraft, such as landing gear and fuselage bulkheads, can be produced domestically. After hearing this answer, Shen Hong''s spirit even recovered a little instantly. ?However, Chang Haonan and Yan Yongnian both know that as an old man, Mr. Shen''s energy is limited after all, and it is not a good thing for him to continue to exert himself like this. ?So he changed the topic specially, and after chatting about something light, he left the other party to rest alone, got up and left the room. Mr. Shens energy is limited and he is very old, so I still need to add a lot of things in between. After closing the door, Yan Yongnian whispered to Chang Haonan. Compared to Shen Hong, who held an important position in the First Machinery Department, Yan Yongnian, who directly presided over the design of the die forging press at that time, obviously knew more about some details. ??And now that he is less than 60 years old, he has more energy to explain these things to Chang Haonan. Professor Yan, please tell me. Chang Haonan originally did not expect the 90-year-old Shen Laozhen to work hard with him throughout the whole process. Being able to contact Yan Yongnian through the latter was already the main purpose of the trip. Actually, only part of the information about this die forging press is in our Qinghua University. ??As a result, Yan Yongnians first words made Chang Haonan unable to stand still: Part of it? He originally thought that the other party wanted to add some technical issues to him. Under normal circumstances, the drawings involved in the same project will definitely be stored centrally, so it is normal for all of them to be in Qinghua and all of them not to be in Qinghua. There is usually a story behind this kind of separate storage. ?At this time, Shen Yiqing brought over two cups of tea, led the two of them to the sofa, and then turned back and entered another room. Compared to going outside to pave the road, Mr. Shen''s living room is more suitable for the two of them to communicate. "right." Speaking of this matter, Yan Yongnian nodded helplessly and continued, Originally, because the completion level of the entire project was actually very high, all relevant materials were stored in the original Archives of the First Machinery Department. "After Mr. Shen retired from the leadership position, he rarely asked about the affairs of the department. Those of us who were in charge of the project also went our separate ways to do other things, so for many years, no one stopped. Pay attention to these things. ??His words were very tactful, but Chang Haonan could still understand the implication. The actual meaning was that Shen Hong''s group had lost power that year and it was difficult to control the situation in the ministry. So part of... is missing? ?The other party shook his head: Its not lost. It was probably between 1991 and 1992. I think it was around the time when Lao Maozi was just disbanded. An American company said it wanted to buy a complete set of original materials related to our project..." Well, its a familiar plot again. Similar routines were almost always unfavorable when facing the immature Eastern camp. You dont even need to use any off-board moves. As long as you pay a very low deposit and liquidated damages, you can take away the key content of your information. ? Many times, even a few percent of the data is missing, which can have a devastating impact on project progress. Of course, this requires the "cooperation" of some internal personnel, otherwise it will be difficult for the other party to determine which of the vast amounts of information are the most critical parts in a short period of time. ??While Yan Yongnian was picking up the cup and drinking water, Chang Haonan guessed: I guess they paid a deposit and only took part of the information before choosing to breach the contract? ?Although it is used in a question, the tone is almost determined. Yan Yongnian next to him stared at him for a long time before sighing with emotion: Sigh... If only they could have such a long-term view as you..." Although he did not answer directly, he basically accepted this statement. "When Mr. Shen told me about your situation before, I thought that although you have many titles, you are still too young and it would be difficult for you to take on this responsibility. Now it seems that I made a mistake..." Chang Haonan waved his hand indifferently: Although Im quite capable, I really dont have a long-term perspective on this matter, because the data on Yun 10 back then also lost key parts, so I have experience He specially added an accent to the word "lost". In fact, until the first decade of the 21st century, it was widely circulated that when McDonnell Douglas signed the MD82 final assembly project with Hufei, it required Hufei to completely transform the Y-10 production line and destroy all relevant data. Actually, even if you think about it, its impossible. It is true that the production line was dismantled and completely renovated, but McDonnell Douglas never mentioned transporting 10 data in the contract. They all gradually drifted out in the following years. ??Of course the claimed reason must be that it was lost due to poor storage. Due to the extremely frequent organizational adjustments and changes in the past decade from the late 1980s to the beginning of the 21st century, it is difficult to even hold accountable the loss of some data. Yan Yongnian glanced at Chang Haonan with the eyes of a brother in distress: "In short, after that time, in the name of scientific research, I transferred all the transferable parts to Qinghua University for storage. If necessary, I can lead the research team to join this project, even if it is a hand-in-hand OK." "The heavy-duty die forging press is something that Mr. Shen and Cao Chunxiao and we have always been unable to let go of. Now that Mr. Shen is older and Mr. Cao is in Hongdu, I am the only one who can help them realize this idea. Think about it..." Of course, the latter could not give up such an important new force, and he was not from the Ministry of Machinery Industry, so he did not need to worry too much about forming cliques, so he answered directly: Dont worry, as long as this die forging press project can be restarted, you and your research team will definitely play an important role in it. The big projects that Chang Haonan will be deeply involved in later include the No. 10 Project, the Turbofan 10 engine and the heavy-duty die forging press. Whether it is from the perspective of cultivating technical strength or from the perspective of his own lack of skills, it is impossible. Completely shoulder to shoulder. We still need to establish the project first Yan Yongnian put down the cup in his hand as he spoke, obviously still having trouble letting go of the past. Many times, internal resistance is greater than the technical difficulties we face... Fortunately, the situation in your Science and Technology Commission should be much better. As a member of the Science and Technology Commission system, Chang Haonan was naturally unable to respond directly to such comments, so he could only reply noncommittally: "In the future, there will be more and more projects involving large-scale equipment, and it is impossible to remain under the Science and Technology Commission system. If we don''t occupy some positions, others will. We still have to face the problems we have to face. So taking this opportunity, I considered incorporating some of the power of the Ministry of Machinery Industry into the project. ??Everyone Chang Haonan has come into contact with so far has relatively high confidence in the Science and Technology Commission. Mainly because the predecessor of the Commission of Science, Technology and Industry for National Defense was led by veteran comrades Zhou Gong, Nie Shuai and He Shuai. It is truly upright and trustworthy. ??But no matter what, the Science, Technology and Industry Committee has the prefix "military" after all. Especially after the military is not allowed to do business, it is inconvenient to directly come forward on many matters, and there is no way to cover everything. Still needs a local institution. However, in the original timeline, influenced by the "sunset theory of traditional industries" and the "sunset theory of traditional industries" and the "retreat of the state and the advancement of the people" ideas that became increasingly popular in the late 1990s, next year, that is, in 1998, the Ministry of Machinery Industry and the Ministry of Metallurgical Industry will They were directly abolished and eventually evolved into the Machinery Industry Federation and the Iron and Steel Industry Association respectively. Dont underestimate the changes in the last few words. The latter two are just private guild organizations without any administrative capabilities. The loss of assets caused by this process is second. The bigger trouble is that the mechanical industry R&D system and industrial intelligence system that have been operating for many years have collapsed. The entire physical manufacturing industry has lost the ability to coordinate a game of chess and can only enter a passive state of fighting independently. ? It was not until 2008 that China, which suddenly woke up from the financial crisis, established the Ministry of Industry and Information Technology again. Although the name contains "industry", since the machinery and metallurgical related departments have disappeared for 10 years, the Ministry of Industry and Information Technology can actually only be established with the Ministry of Information Industry as the team. For a long time, there was not enough coordination for the development of the manufacturing industry. ability. It can be said that this strategic misjudgment is the most severe blow to the development of China''s manufacturing industry. ?Of course, China is not the only one who has taken this detour. Most developed countries in the world have left, and they have gone more thoroughly than China. But no matter what, its better not to take this detour. Therefore, Chang Haonan has another thing that he has never stated clearly but wants to accomplish Save the Ministry of Machinery Industry and the Ministry of Metallurgical Industry, which are about to be disbanded. Brothers, when you participate in the wool harvesting event, remember to bring pictures... dont just write a sentence (End of this chapter) Chapter 333 Peoples Navy, move forward Chapter 333 Peoples Navy, moving forward ?Of course, Chang Haonan did not disclose this kind of ambition to anyone, including Du Yishan. It was actually a hasty decision to disband the Mechanical and Metallurgical Department. In 1997, he had not even written a word about it, so he certainly could not say it directly. Secondly, Chang Haonans own influence is still mainly within the Science and Technology Commission, and now he talks about how he wants to treat other departments at the same level, which always feels like meddling in other peoples housework. ?Even though he actually wanted to intervene It is a pity that the two ministries and commissions were directly disbanded, but the original situation is indeed no longer in line with the requirements of the times. ?So the best way is to build the Ministry of Industry and Information Technology in advance and integrate the functions of the Ministry of Machinery Industry, the Ministry of Metallurgical Industry, the Ministry of Electronics Industry, the Ministry of Posts and Telecommunications, and even the Commission of Science, Technology and Industry for National Defense. It cannot be done overnight, so do it gradually. ??But this cannot be said in advance, otherwise it will inevitably be seen as an attempt to manipulate the Science and Technology Commission to annex brother units and become a dominant company. The impact is too bad. It is more efficient to do it quietly by yourself. Yan Yongnian next to him naturally didn''t know Chang Haonan''s true inner thoughts, but this project was originally intended to focus on the latter. Others were willing to bring the power of the Ministry of Machinery Industry to play with him. He had no objection at all, but just reminded some of the things. Obstruction and sabotage from within. Lets take advantage of it, and times are different after all, so there is no need to be so pessimistic. Chang Haonan replied with a normal expression, Anyway, its a pleasure to work with you, Professor Yan. The two shook hands and exchanged contact information, and then prepared to say goodbye to Shen Yiqing. Before leaving, the latter brought them some bacon dried at home as a return gift for their arrival. While waiting for the other party to take action, Chang Haonan noticed a piece of news in the newspaper ? A British fleet transited the Suez Canal on a planned visit to a series of South and Southeast Asian countries. He took another look at the date of the newspaper. More than half a month ago. Today is June 20th. This reminded Chang Haonan of the origin of this British fleet. Wave 97 task force. Also exists in the original timeline. Chang Haonan could not remember exactly which ships were in it, but he still remembered that this should be the largest single fleet assembled by the Royal Navy after World War II. Even larger than the one sent out to the Falklands in 1982. In the original timeline, the Chinese Navy really had no ability to intervene with the main part of the fleet that was more than a thousand kilometers away. It only sent a frigate to prevent two of the ships from trying to rush into the waters near HK on the evening of June 30. plot. Its a tie. Both parties felt that it would be disrespectful to talk about this matter, so they chose to keep a low profile for a long time. ?However, although the content written in this newspaper does not directly criticize the British for provoking, people who are knowledgeable can still see some clues from it. In short, there are thorns in the cotton. After returning home, Chang Haonan specially dug out the newspapers he had saved in recent days. Sure enough, I found the follow-up from the day before yesterday. This fleet has passed through the Strait of Malacca and entered the waters near Annan. And there will also be a joint exercise with the Annan Navy. Compared to the wording on the newspaper used to wrap the bacon, it was already much harsher. In fact, Chang Haonan estimates that if it were a different country, a different time, and a different format, this matter would probably be handled in a low-key manner. But the British drove nearly 40 ships to the surrounding waters to cause trouble in June. Basically, this is all the key points to hit China. Because the war of 1840 was fought in the same way. Thanks to Chang Haonan''s efforts, the equipment level of the Chinese army has improved to a certain extent compared to this time in the previous life. However, judging from the map, the exercise area chosen by the opponent is not close to the mainland of China. A rough measurement is about 1,500 kilometers. . For the Chinese army in this era, it is indeed a bit beyond their reach. After all, the combat radius of the aircraft is not just cut in half. If the necessary consumption during the mission is included and some margin is left, it can be one-third to one-fourth. As for the surface ship force... It can only be said that the influence brought by Chang Haonan has not radiated to them yet. So based on the situation in the previous life, Im afraid its not optimistic. ?He suddenly became curious, what will happen in the next 10 days? ?It can only be said that although Chang Haonan has a high level of confidentiality in the military industry system, he is not a soldier after all, and it is impossible for him to understand many internal situations in the army in real time. ?For example, the Air Force has expedited the introduction of two Il-78 tanker aircraft and conducted joint training with relevant naval aviation units in Qingtang Province for more than a month. In the next few days, this mixed aviation force, which was temporarily formed for this purpose, secretly transferred from the northwest Gobi to Lingshui Airport in Qiong Province, the southernmost part of the motherland, in batches. Together with the naval surface ship forces who also participated in the embankment operation, they will teach the self-righteous British an unforgettable lesson. June 23rd at 7 a.m. The two warships set sail in the light morning fog, blowing their horns, and left Zhanjiang Port with the assistance of barges. They are the Type 051D destroyer Jingjiang and the Type 053H frigate Rongzhou. 899196604091904/10013529/b3ae9bd921af79aaab590001816c7851rnS7sObp809d9B1.jpg"> From the perspective of combat effectiveness alone, this one-wheel drive aircraft carrier is naturally inferior to an aircraft carrier plus two-wheel drive aircraft and three **** aircraft in the Hailang 97 fleet. In fact, the combined displacement of the two ships is just over 5,000 tons, not much larger than a Type 22 frigate. But at this critical moment, no matter how great the disadvantage is, there is absolutely no reason to retreat. What''s more, before setting off, they had received clear information that this mission would be covered by their own aviation units. This is unprecedented in history. In the past, it was basically impossible for the shore-based aviation force to bring any effective support. It could only fly around once and then return. But this time, the superiors specially arranged for all the commanders and fighters participating in the mission to visit the Lingshui Airport in Qiong Province. ????Although the people in the surface ship force don''t know much about aircraft, they can still tell the size. ?A dozen fighter jets and fighter-bombers, at a glance, are much larger than the J-7 or Q-5 that were common in past exercises. According to the comrades accompanying the tour, these aircraft can also be refueled during flight, so they can fly to the scheduled mission sea area 1,500 kilometers away and stay there for about half an hour. Half an hour, although it doesnt sound like a long time, is enough to do a lot of things. ?Especially for some veteran commanders and combatants, in some maritime conflicts they have participated in, the really intense part from beginning to end usually lasts about this time. Finally, we no longer have to worry about those Annan Su-22s This is the first thought of many people. At the end of the tour, two large tankers that were almost five stories high were completely beyond the imagination of many people. Although the People''s Navy has been facing a situation of weak enemies and strong enemies since its establishment, it has nothing to fear now. But it is better to build up all-round confidence before setting off. (End of this chapter) Chapter 334 Eagle over the South China Sea Chapter 334 Eagle over the South China Sea June 30, 14:30. Lingshui Airport, Qiong Province. In the afternoon light, six tactical aircraft were parked on the tarmac next to the runway, lined up. Ground crews around are skillfully connecting cables and compressed air pipes to the aircraft from the power supply truck and air supply truck parked nearby, preparing to complete the preparations before takeoff. A little further away, four J-8D fighter jets belonging to the Air Force were undergoing a similar process in the hangar. Since the Air Force model aircraft did not specifically consider the use in a salt spray environment in the painting and surface treatment of some parts, they would appear more vulnerable at such a seaside airport, so they squeezed the host''s four J-8Cs. Temporary parking area. The two large Il-78 tankers, which also belong to the Air Force, really do not have the facilities to match their size, so they had to be wrapped in raincoats and parked outside. According to the plan, in order to avoid coordination problems caused by cross-service command, these air force aircraft will not directly participate in the combat plan, but will go to a location about 650 kilometers south of Qiongdao to establish a refueling area to meet the naval aviation forces who are insufficient in fuel during the return journey. formation. ?At the same time, the flight briefing room is located under the tower at the end of the runway. ?Nearly 40 crew members participating in the embankment building operation had just finished lunch and began pre-flight preparations. ?Everyone has already become familiar with the relevant mission details through countless trainings and simulations. Compared with the earliest plan, the biggest change is that in the past month or so, Factory 172 and Electronics 14 have shown amazing efficiency in delivering the second JH-7 that has been modified and tested to the troops ahead of schedule. It gives the attack formation more flexible operating space. Hence, a total of 6 aircraft will be split into two parts when approaching the opponent''s Wave 97 fleet. Division commander Tang Yiping will fly No. 10 aircraft and lead another No. 11 aircraft and the newly delivered electronic warfare aircraft with tactical number 21 to maintain the original flight altitude to attract the attention of the enemy fleet. The other two J-8Cs, plus the first J-Handian-7 with tactical number 22, will descend to ultra-low altitude at a distance of 50-60 kilometers from the target. They are the most important and risky in performing this mission. MissionFly over the opposing fleet and photograph the British reaction. ?Captain Wang Weis No. 12 aircraft will carry a photo reconnaissance pod in the belly to record the entire process. An hour later, at 3:30 in the afternoon, the pilots who had finally determined their respective missions completed their changes and boarded their own planes. As a suspect, a transport 8J first started its engine and taxied to the runway. According to the operational concept, it has no self-defense capability and will not fly directly into the mission airspace. Instead, it will hover at the edge of the combat radius of the Sea Harrier aircraft, attracting the attention of enemy carrier aviation, and if necessary, use that aircraft. The SouShui 2000MS radar imported from the UK indicates targets for friendly forces. Although the 164 Jingjiang ship and the 552 Rongzhou ship that left port five days ago are already close to the mission sea area, they will complete the search and tracking of the enemy fleet, and may not necessarily need an aircraft with an already tight range to find needles in the haystack, but this 8J is actually It also shoulders the task of conducting a tactical training exercise at a higher level. That is to simulate an early warning aircraft and command 6 other naval aviation aircraft that are directly involved in combat. ?Of course, the command is also simulated, and the real orders will always be issued by the tower at Lingshui Airport. But for the Chinese Air Force, which was exposed to air command posts for the first time, this was also a huge leap. To this end, Kang Shijun, deputy chief of staff of the Naval Aviation Department, who had just recovered from serious injuries and returned to the team, specially boarded the plane to take charge. Set the call channel to 55.7 MHz. The sound of instructions from the tower came from the headphones. "receive." Wang Wei in the cockpit of Unit 12 spoke calmly and at the same time adjusted the radio frequency to the location required by the tower. This is a band commonly used for ionospheric scatter communications. It is impossible for the Chinese Navy to deploy a data link system within a month, so direct communication between the **** fleet and the aviation force is still not possible. However, thanks to a communication relay airship placed at high altitude in the name of "meteorological research", The tower can act as a communication medium between the two. After finishing what he was doing, he raised his head again and watched the transport 8J leave the runway and disappear into the distant horizon. That is exactly the direction due east. Wang Wei knew that just 700 kilometers away, preparations for a ceremony that all Chinese people had been waiting for for nearly a century were being intensively prepared, and all their efforts in the previous month and in the next few hours had the ultimate goal. It is to protect this. at all costs. "Yuejiang, received news from the fleet ahead. They came into contact with an RN warship at 908'' north latitude and 11212'' east longitude. It was determined to be a Type 22 frigate, and the radar captured 4 fixed-wing aircraft taking off. Post-climb target signal. Received from Yuejiang. ??Tang Yiping''s voice could no longer remain calm. ??Although the opponent''s main fleet was not directly captured, since even the low-altitude search radar on the 051D could see the Sea Harrier that had just taken off, it meant that the aircraft carrier was not far away.????It''s time to take off. Six aircraft that had been prepared for a long time started their engines almost at the same time. The pipelines connected to the aircraft body were then quickly removed. Yuejiang, please take off. Permission to take off, and I wish you a triumphant return. The 12 engines roared simultaneously and drove onto the taxiway one after another. ?Three planes led by Tang Yiping took off first, and then it was the turn of the other three planes led by Wang Wei. After finally getting into the take-off position, the latter took a deep breath and then put on an oxygen mask. ??Due to his excellent performance during the training in Qingtang Province, he was finally selected to carry out the photo-taking mission with a reconnaissance pod. This is what Wang Wei has dreamed of since he joined the embankment construction task force. As a pilot, his cultural level is higher than that of the soldiers on warships or tanks, so he knows that the Chinese Navy and the Royal Navy are closely related. Although it is not a good thing. Not just the one in 1840. ?Also in 1953, the newly born People''s Navy used a gunboat converted from a transport ship to drive away an RN ship trying to stir up trouble outside the mouth of the Guangdong River. That was the navys first foreign war after its establishment. Now, more than 40 years later, he is more than willing to teach the short-memory British a lesson once again. ?Wang Wei slowly pushed the throttle all the way with his left hand, and then released the brake. As the body of the aircraft shook slightly, the fighter jet began to accelerate rapidly. ?Just a few hundred meters later, he felt the plane''s strong tendency to raise its head, so he pulled the plane up. ??The captain looked back and made sure that his wingman Zhao Yi had also taken off with him. Only the No. 22 JH-7 was still taxiing on the runway. ?But this was originally part of their training results. Three aircraft of two types share the same runway. ?Although it has been about 4 months since he installed this new aircraft, Wang Wei still feels an unreal feeling every time he takes off. The performance improvement is too obvious. ?In previous confrontation training, when faced with the combination of the Blue Armys J-7E and J-8D, they were able to compete one-on-one. Although the appearance is not much different from the J-8B he drove in the past, as a pilot, he can feel that these are two completely different models on the inside. The new J-8C does not have the clumsiness that an interceptor should show at low altitudes and during takeoff and landing. Even though it now carries two auxiliary fuel tanks, a photo reconnaissance pod and two of nearly four air-to-air missiles, it can still take off with only a short runway. ?Engines with more thrust certainly play a role. But it is said that most of this is due to the slit on the leading edge of the wing. If this is indeed the case, then the designer is really a genius, using such a simple method to solve the most troublesome problem on the old model. ?Wang Wei returned his attention to the front, thinking this while retracting the landing gear. Deputy Chief of Staff Kang Shijun encountered an accident during a flight training in August 1996 and was injured while parachuting. This name may not be familiar to book friends, but you must have heard of a young pilot student named Dai Mingmeng in the back seat of the J-6 he was driving. (End of this chapter) Chapter 335 Sea Harrier takes off Chapter 335 Sea Harrier Takes Off ?Later that day, about 50 nautical miles northeast of Nanci Island. ??A huge fleet consisting of more than thirty ships is slowly sailing due north. On the aircraft carrier Excellence in the center of the fleet, Fleet Commander Rear Admiral Alan West is sitting in the Combat Information Center (CIC), his eyes fixed on the circular radar screen in front of him. Since about 20 hours ago, two old Chinese warships have loomed near the fleet. But this is not a point of particular concern to the Major General. An inconspicuous signal is displayed at the edge of the screen. It looks like a slow passenger plane or transport aircraft, but from the zigzag route it flies, it is not difficult to judge that it is conducting a sea search. Task. The Invincible-class aircraft carrier referred to the experience of the Soviet Union when preparing its budget, and deceived the parliamentarians in the name of an "all-deck command cruiser." This decision resulted in the ship paying the price of reduced combat effectiveness in many aspects, but At least it brought a CIC that far exceeded the tonnage standard of this ship. ?After the data link system was upgraded in the early 1990s, the commander sitting here can see the targets searched by other ships in the entire fleet. This is particularly important for the Royal Navy, which experienced heavy losses in 1982. ?? Also upgraded after 1982 was the radar equipment of the Type 42 destroyer. ?But even so, West is still a little worried. After all, as the captain of the sunk frigate Enthusiasm, he had a close brush with death. And now the major general in a high position already knows that the Type 42, or the entire Royal Navy fleet''s air defense problem, actually only retains dedicated long-range warning radar and fire control radar, but it was later proved that such a configuration saves money. place, but it is difficult to connect during combat. ??A common situation is that the long-range warning radar has clearly seen the target, but the fire control radar cannot accurately lock it and can only watch. This is not a problem that can be solved simply by upgrading equipment. ?But there is good news. The newly added Type 23 frigate HMS Somerset can make up for this problem to a certain extent. During several small-scale maneuvers along the way, Alan had to admit that he had some past prejudices against this new model and its captain, Dorsem Slater, the son of the current First Sea Lord. The Su-22 of the Annan Air Force simulated the low-altitude penetration strategy of the Super Etendard many times in an attempt to break through the air defense network, but was successfully intercepted every time, including several simulated anti-ship missile targets. This made the major general feel somewhat relieved. What made him even more troubled was that many people in the country regarded this operation as a royal parade like a century ago, without any sense of the seriousness of a military mission. As a result, this fleet, which was quite professional and capable when setting sail, was required to include various unnecessary non-combat ships along the way. Originally, according to the Rear Admiral''s plan, one Fort Victoria and one Fort Rosalie logistics supply ship were enough to sustain the operation. After all, there would be more than a dozen ports to stop along the way, and most of the supplies could be on shore. conduct. ?However, now, the fleet has expanded to nearly 40 ships, more than half of which are unplanned transport ships and oil tankers. Most of them do not even have the ability to resupply during travel and can only rely on helicopters to lift and transfer supplies. Reasons include, but are not limited to, some trust relationships to fill ships in which descendants of the family hold positions, hoping to add to their resumes, and some companies register their almost abandoned small cargo ships as oil carriers to join the fleet to obtain Special royal subsidies for participating in the royal parade. Thats right, from the very beginning, the Conservative cabinet followed the standards and caliber of the Royal Parade in its propaganda. ?This operation allowed them to quickly boost their already precarious support rate and delay the suspense over the distribution of parliamentary seats that should have been settled in early May for two months. As a professional naval commander, West naturally refused to do this at first, but many companies have high-level and even royal connections behind them, which is not something he can manage as a mere major general. ?This situation reached its peak five days ago when a royal cruise ship full of tourists joined the group. The entire fleet is now more like a tourist group. Alan, this target is nearly 300 kilometers away from us, and you have been staring at it for almost 10 minutes. A man of similar age came up from behind West, patted him on the shoulder and said. The former showed a slight expression of disgust on his face, but it was only fleeting. Vice Admiral Michael Boise, who is rumored to be the next First Sea Lord to succeed Jock Slater. ?This kind of rumor is actually a leak before the appointment, and it is often extremely accurate, so West is not willing to offend such a popular person. Sir, before the Zealot and Sheffield were sunk, the fleet was monitored by a P2 patrol aircraft wandering around the edge of the defense zone for such a long time. ?Every detail about Falklands will echo in West''s mind in this life. ?This answer made Boise frown. ?In the process of appointing the new Sea Lord, the biggest obstacle he encountered was that some people pointed out that he had no experience in commanding or even participating in any major maritime missions. ?His forced intervention in the middle this time was to silence this critical voice. And now someone is mentioning this matter in person, which will undoubtedly make the Lieutenant General feel unhappy. So he simply replied: If you are really afraid of this target, you might as well take off a formation to verify it. We cant analyze anything even if we just watch here. ? West turned his head slightly and glanced at Boise behind him with his peripheral vision, but did not give any direct response. The latter joined the fleet with the royal cruise ship. In fact, Michael Boise is closer to a political officer than a naval admiral. ?The most unbearable thing for West is that the lieutenant general himself has no such consciousness. Since joining the fleet, the latter has taken a helicopter to the aircraft carrier Excellence to stay for a few hours almost every day. Theoretically, as the fleet commander, West should have the highest command authority. But when a person with a higher military rank, a knighthood, and a high probability of becoming the next Sea Lord stands in the CIC, it is difficult for him not to be disturbed. The same is true for other people in CIC. ?For example, sitting opposite the Rear Admiral, Colonel Lejar Dennis, the captain of the aircraft carrier Excellence, who had been silent just now, suddenly said: General West, before setting sail, I specifically read the detailed information on the Chinese navy and air force provided by the intelligence department. "The Su-27 aircraft with the longest range of the Chinese military currently has a very low readiness rate and can only be stationed at an inland airport. The remaining aircraft do not pose any threat to us in terms of range or performance, so they can only dispatch one aircraft at most. Its just a patrol aircraft with no attack capabilities, so even if a group of Sea Harriers are sent out, it shouldnt matter. Even if we send them out, whats the use? ?? West shook his head, "The target position is almost at the edge of the Sea Harrier''s combat radius. Even if we take off, the aircraft only needs to retreat slightly to avoid direct contact with our aircraft." Such an argument is naturally untenable. ?The purpose of the eviction mission is to drive away the opponent''s aircraft. As long as the target retreats, the goal is achieved. Actually, this is just a temporary rhetoric used by West to deceive Boise. The real reason is that there were originally 14 Sea Harrier FA.2 fighter jets on board the Excellence, but 4 aircraft are currently undergoing maintenance due to recent continuous exercises, and the other two have just taken off and are planning to conduct a sea battle with the Su-22 of the Annan Air Force. During the attack drill, there were only 8 usable aircraft in hand. Considering that the two Sea Harriers carrying out sea attack missions would soon return, West was unwilling to send out additional aircraft at this time. Since there is no angled deck, the Sea Harrier can only take off vertically when an aircraft is preparing on the deck. ?That blank time is almost negligible. Another coincidence when HMS Enthusiasm and HMS Sheffield were sunk was that a group of Sea Harriers on a bombing mission just happened to return from their missions, resulting in the fleet being unable to obtain effective cover for a long period of time. The incoming aircraft were actually detected by radar in the final stage, but except for the rifles in the hands of the sailors, the entire fleet could not find any weapons capable of performing air defense tasks. ?However, West''s excuse was able to deceive Boise, but he could not convince Dennis next to him. ??The latter hesitated, but finally decided to support Boise, who had a higher military rank. ?And the reason West just gave is indeed comparable to lying to a fool. "We don''t need direct contact. According to the situation sheet, the only one in China that can perform this kind of mission is a patrol aircraft improved on the basis of the An-12, and the radar it uses is exported by our country. In fact, Its the same model used by our ships early warning helicopter. Is there such a thing? ?? Boise was immediately attracted by the news. "so what?" So the Sea Harrier can carry an interference pod. Although it is an old model that was put into service many years ago, it can only inject interference to the front in a fixed way, but at least it is very effective for our own radar. ? West realized it might be hard to say no anymore. ?However, he still made a last-ditch effort: Perhaps you are right, Colonel, but after all, that is what you saw before we set sail. It may be different now, and the efficiency of our intelligence department is also..." ?However, this time he was interrupted directly by Boise: Major General, even though you have sailed around half of the region, it has only been five months. Do you think the situation in China will change drastically in such a short period of time? "this" ??West could not answer. Because according to common sense, 5 months is really not enough time. As for the efficiency of our countrys intelligence services Lieutenant General quickly stepped forward and sat opposite West in a very oppressive posture: They are not the Soviet Union. ?At this point, West really has nothing more to say. Because to say the least, they are not in a state of war, and they have not entered any country''s territorial waters yet. Although everyone knows that this is a provocation, it does not violate any international conventions. Even the major general himself cannot imagine what other response China can do other than sending warships to follow around. In fact, those two old ships had no deterrent effect on the fleet at all. Many people on the cruise ship even used them as backgrounds to take photos. The nuclear submarine that had been hiding under the sea also simulated many torpedo attacks. ?If he continues to insist on his own opinion, he will only look like a persecution delusional person. Okay, let the two Sea Harriers go over to take a look at the situation and try to force the target away. ??West sighed and decided to compromise. ?However, after thinking about it for a while, he added another sentence: Take off another Sea King MK2 early warning helicopter, just in case. 899196604091904/10013742/e3b088289014daf15d7e370b6f8a62e6a1r1r8j9Jbwz04u.jpg"> (End of this chapter) Chapter 336 Electromagnetic interference, nightmare repeats itself Chapter 336: Electromagnetic interference, nightmare repeats itself ?At almost the same time, two three-aircraft formations of the Chinese Naval Aviation Force had arrived about 400 kilometers away from the mission sea area. Yuejiang, we have just received news that the Jingjiangs radar has discovered that the enemy has taken off two planes heading towards the 45th direction. They should have been attracted by the North Star. ?The radio station came with a tower commanders announcement that I hadnt heard for a long time. Polaris is the code name of the Y-8J. ??The ionospheric scattering communication that was relayed once through the stratospheric airship did not disappoint them. Although there was some distortion, the conversation could still be heard clearly. In fact, this conversation at a distance of about 1,100 kilometers should have broken the distance record for VHF communications conducted by the Chinese Aviation Force. Its just that no one cares about such minutiae now. What they will do next is something that will be recorded in the history of the navy and even the entire people''s army. The North Star side should be able to handle it, right? Zhao Yi, who was following the team at the end, was obviously a little worried about the athletes who were alone and had no ability to defend themselves. Although it is unlikely that a direct conflict will break out between the two sides, a flexible tactical aircraft actually has many ways to interfere with the movement of large aircraft, and the Sea Harrier just meets this requirement, and the flight stability of the 8-level aircraft is not very good. platform. Yuejiang 13, dont be distracted. ?Wang Wei quickly reminded on the radio. ?However, he added later: Polaris will not be in direct contact with the opponents aircraft, so there is no problem. For these aircraft that perform overflight missions, the fewer aircraft remaining on the Excellence, the more conducive to completing the mission. At present, it can be confirmed that the other party has released 6 aircraft. ?But before Wang Wei could get happy, another news came from the tower: The Jingjiang also reported that the radar detected a very low-speed target, which should be a helicopter, hovering over the opponents fleet. Helicopter Tang Yiping, the lead pilot at the front, was thinking about the current situation rapidly. ?Helicopters appear hovering over the fleet. A common situation is anti-submarine warfare or search and rescue of people who have fallen into the water. The latter possibility makes little sense to them, and the Chinese Navy did not send submarines to participate in this mission. Could it be an early warning helicopter? Wang Wei''s voice suddenly sounded from the UHF radio used for short-distance communication. He proposed a new possibility. ?In this year, early warning helicopters are quite unpopular equipment. If Wang Wei hadn''t read the Royal Navy''s war history materials before taking off, even he might not be able to remember them. If this is the case, it is not a big trouble. Although the range of early warning helicopters against air targets is not long, after all, they are not launching anti-ship missiles today, but flying over the opponent''s fleet. ??If you really allow the other party time to react, there may still be complications. Yuejiang 21, Yuejiang 22, you guys exchange covering positions. ?After a few seconds of thinking, Tang Yiping made corresponding adjustments to the deployment. ? ?The latest delivered aircraft No. 21 has a third fixed electronic warfare device above the vertical tail, so that it can interfere with the aircraft above the original blind spot and has a more comprehensive function. The price is that the heading stability is slightly weaker than before, so in the initial plan, it was not allowed to follow the low-altitude formation. ?But I cant care about that much now. At 17:10, in the afterglow of the setting sun, the aviation formation entered the search range of the opposing fleet. ?Two electronic warfare aircraft reported almost at the same time that they received the S-band signal from the left front. It should be the long-range warning radar on the British fleet. ?In order to compensate for the far range of the X-band fire control radar and double as a search radar, the Royal Navy''s long-range warning radar chose a relatively high frequency. ?This compromise ultimately proved that the accuracy could not meet the needs of replacing the search radar, and the effective range of the warning radar was affected. And today, it exhibits another flaw. ?As a third-party signal source, this higher-frequency S-band will be more conducive to passive searches by Chinas electronic warfare aircraft. They "borrowed" each other''s radar waves and saw the low-speed signal hovering over the fleet, as well as four targets returning at a speed of 300 knots in a slightly farther distance. It should be the four Sea Harriers that took off before. This is simply an unexpected surprise. Since the two warships were being held at a slightly greater distance and out of visual contact with the opposing fleet, the two JH-7s were even ready to use radar to actively search. But now, this unnecessary step is eliminated. ?The location of the Sea King helicopter must be above the fleet. Tang Yiping quickly calculated the time in his mind, and then issued a new command: Yuejiang 12, you speed up now, its best to pass by while the other party is recovering the aircraft! "receive!" ?Wang Wei, who received the order, understood what the division commander meant in a flash of lightning. ??It is impossible for the Sea Harrier to take off in a short distance while the Excellence is busy recovering four aircraft, and the bomb load and combat radius in the case of vertical takeoff are very limited. So now is basically when the opponent''s entire fleet is at its weakest. ?According to the revised plan, aircraft No. 10, 11 and 22 continued to maintain their original flight status, while Wang Wei led the other three aircraft to lower their altitude to completely avoid the opponent''s warning radar. In the CIC of the Excellent, Major General West looked at the three rapidly approaching target signals on the radar screen, and suddenly had the urge to strangle himself 40 minutes ago and Captain Dennis in front of him. No matter what happened in the past five months, the Chinese must have got a plane that can fly here. Long-range warning radar can only see the presence of something, but cannot accurately determine the location of the target. ?Now, the four planes have run out of fuel and are in urgent need of landing, without even leaving enough space for the Sea Harrier on the deck to take off. But no matter what, he had to deal with it. ?? West knew that although it was Boise who interfered with the command, but if something really happened, he, as the fleet commander, would definitely be the one to take the blame. ??He can only be thankful that he was cunning enough to keep a Sea King MK2 in the sky in advance. Notify the aviation department to let the four aircraft on the deck take off vertically, and the early warning helicopter will direct them to the interception target! Major General, our electronic detection equipment did not sense that the other party was using radar, so they should not be able to determine the accurate position of our fleet. The deputy next to him reluctantly found a piece of good news. ?However, before West could breathe a sigh of relief, CIC received another report from the early warning helicopter. Their radar couldn''t see the target! (End of this chapter) Chapter 337 Break through the interception and fly over the aircraft carrier! Chapter 337: Break through the interception and fly over the aircraft carrier! Cant see the target? ?When he heard the news, West''s brain shut down for a moment. So far, the Rear Admirals naval service experience can be said to be rich and colorful. ?For example, when the Zeal was sunk fifteen years ago, when he was still a lieutenant colonel, he watched two A4 attack planes fly over, drop bombs, and hit the target. This is not an opportunity that every commander has. But facing the situation in front of him, he still couldn''t make a judgment for a while. ??The warning radar has clearly detected that a flying object is approaching at high speed, but the early warning helicopter, which is supposed to have a better view, reported that it found nothing. Could it be that its not a Chinese plane, but a UFO? At the end of the 1990s, it was the time when UFO fanaticism was at its most intense, and even West, as a naval admiral, was not immune to some influence. Fortunately, the radio operator quickly reported the subsequent situation and did not let the fleet commander continue to think wildly: Sea King reported that they encountered electromagnetic interference, and there were all clutter signals in that direction! ?? West didnt know whether to be happy or worried for a moment. On the one hand, the Chinese are always easier to deal with than the aliens. But on the other hand, this means that the other party has mastered quite powerful electronic jamming capabilities, at least not weaker than the US military in 1991. When both sides clearly have no intention of engaging in conflict, electronic warfare is almost the trump card in the confrontation. ?At the same time, this also means that the Sea Javelin anti-aircraft missiles in the fleet will not be able to lock on the target. At this moment, the target distance displayed on the radar screen was close to within 150km. ??The rear admiral no longer thinks about where the Chinese managed to assemble an aircraft with such a long range, and where they obtained the electronic warfare technology that can blind their own early warning aircraft. He could only use all the strength at hand to survive this wave first. ??As West''s order was issued, the deck of the USS Excellence aircraft carrier entered an unprecedented busy state. It should be said that the Royal Navy has demonstrated a training level consistent with that of a veteran maritime overlord. The aviation department quickly coordinated to divide the four aircraft preparing to land into two batches to free up two available take-off and landing points. At the same time, the auxiliary fuel tanks of the other two Sea Harriers on standby were removed so that they could meet the weight requirements for vertical take-off. . ?Just a few minutes later, the two aircraft piloted by Major Ian Watson and Captain Randall Brown completed the take-off procedure, successfully switched to level flight mode, and flew towards the target location. ??The voice of the commander on the early warning helicopter came over the radio: Clover, the other party may have implemented electromagnetic interference. Our X-band radar cannot see the target, but we also did not find the target using radar. You may be able to take advantage of this. In 1983, when Watson was still a rookie, he encountered a radio failure that prevented him from finding the aircraft carrier and landed on a passing cargo ship just as he was running out of fuel. Since then, four-leaf clover has become his call sign. "receive." Watson turned on the radar and tried it, and found that, as the early warning aircraft said, the direction of the target was full of clutter. Although this indicated that there must be something, it prevented them from using the AIM120 air-to-air missile as their trump card. In the vertical takeoff state, his onboard fuel was only enough to fly about 270 kilometers at economical speed, so he didn''t have much time to struggle. In the end, the major decided to follow the advice of the early warning aircraft, turn off the ineffective radar, make a slight circle, and approach the enemy from the side. He knew that the cockpit visibility of most Soviet-made fighter jets was very poor, so it was difficult to detect the presence of targets on the sides, especially on the sides and below, without using radar. If you are lucky enough, you can even cut directly into the opponent''s back hemisphere and gain a huge first-mover advantage. ?As long as it can be delayed for 8-10 minutes, it will be enough to clear the take-off deck and allow other planes behind to take off in the normal way. Major, after engaging the enemy, remember to determine the model of the enemy aircraft. It is best to use a camera gun to leave image data. It may be useful after we return. ??The order this time came directly from West in CIC. The current situation seemed to be back on track. The two Harriers should be enough to entangle each other, so he began to wonder what model the Chinese had sent out, which could fly nearly 1,600 kilometers. Perhaps they are not planning to fly back at all? ? Lieutenant General Boise, who had been a little nervous by the tense atmosphere in the CIC, finally found a chance to speak again. In his opinion, the situation should be under control. But this joke that he thought was funny did not receive any response. Even the captain who was on his side before did not look at him. The three planes changed direction and passed towards our two Sea Harriers. Colonel Dennis looked at the radar interface and said in shock, "But didn''t Clover and the others turn off the radar?" When neither side used radar, they should have kept a blind eye, but the response made by the other side was obviously targeted. Who knows what witchcraft they used... ? West, who was a little exhausted, shook his head. Anyway, at least they didnt continue to rush towards us. The Chinese plane probably doesnt have much fuel left, and it wont last long before it returns. At this point, the major general finally breathed a sigh of relief and leaned his upper body back on the backrest. A few minutes later, Watson, who had just received the warning, had made visual contact with the target at a distance of about 30 kilometers from the fleet. ??However, the three-plane formation of the Chinese Air Force occupied a favorable position with its back to the setting sun, making it difficult for the British pilots to look directly at the target. ??But despite this, the major still vaguely saw that there was a model with a slender body, which looked very similar to the old acquaintance Su-15 in terms of outline. Of course, China does not have such an aircraft, so it should be their own J-8B. After judging the target information, Watson felt a little relieved. Under normal circumstances, the overall flight performance of an interceptor aircraft is the worst at the current flight altitude of about 8,000 meters. If it really falls into a circle, then with the good nose directivity and the high stability performance brought by the high thrust-to-weight ratio, There should be no reason why Sea Harrier should be at a disadvantage. Everything developed as he expected. ?The other three aircraft seemed to have no intention of continuing to fly towards the fleet, but calmly entered into a dogfight with him. Come on, monkeys At the moment when the planes from both sides passed by each other, Watson said to himself. However, just as he rolled 90 to prepare for a large-angle instantaneous disk, he suddenly saw three other long tails at a lower altitude than himself, streaking across the sea, heading towards the sea. Extending in the direction of the fleet... No, they dont just have three planes! The major shouted into the radio: Fleet, there are three other planes passing in your direction, be careful to intercept them! On the other side, Rear Admiral West, who suddenly received this report on the aircraft carrier, jumped up from his chair. He grabbed the microphone as quickly as possible and asked the entire fleet to prepare close-defense weapons. Rationally speaking, he believed that the other party would not actually fire on him. But the memory of the past allowed him to complete a series of instructions almost uncontrollably. ?However, it was too late. ?In mid-air, Wang Wei in the cockpit had already seen the mast rising from the sea level in the distance. He knew that was the goal this time. In the mission briefing, there was no further explanation of the "flyby" action. ?Theoretically, the reconnaissance pod he carries can take photos in a 65 range to the side. As long as the image of the target fleet can be recorded in the camera, the mission should be completed. But Wang Wei has some higher requirements for himself. ??He hoped to pass directly above the opponent''s aircraft carrier Excellence and take pictures of the opponent''s flight deck. That must be a very precious image. ?The height of the flight formation dropped to an astonishing 30 meters. Fortunately, the nearby sea was calm and there would not be a sudden big wave. In order to ensure the imaging effect, the three aircraft reduced their speed at the last moment when approaching the target. ??If you are still flying the old J-8B, it will be difficult for him to maintain level flight at a speed of less than 400km/h. But this magical aircraft actually maintained a speed of about 300km/h at ultra-low altitude and flew stably. ?Wang Wei adjusted the course one last time and pointed the nose of the aircraft towards the aircraft carrier deck in the center of the fleet. ??He could even see the two Sea Harrier fighter jets on the flight deck preparing to take off, as well as the crew members looking up at him in shock or horror. (End of this chapter) Chapter 338 The frightened British man (thousands of suns, please give me the moon Chapter 338 The Frightened British (10,000 per day, please vote for me) ??At the same time that Wang Wei was leading the formation to break through the air defense circle, a high-standard dinner was going on in the top hall of the Royal Cruise Ship. Since this ship does not belong to the Royal Navy at all, the series of calls on the fleet radio just now did not affect the happy atmosphere here. As for the frequent take-off and landing of fighter planes, this has happened frequently in recent days. Most passengers would gather at the window with interest at first to watch, but they soon lost interest. Although some passengers who are a little knowledgeable or interested in the navy will still pay attention, the high-end banquets and upper-class social circles are obviously more attractive. Journalist Ingrid Seward and her colleague and childhood friend Mark Spencer were sitting in a corner drinking. ??The two of them came to this ship through several connections. They originally wanted to catch a few big shots and dig out some news. As a result, although the big shots found a few, they never found a chance to get close. Looking at the frowning Seward, Spencer picked up the wine glass, touched her gently, and then comforted: Think on the bright side, at least we have the opportunity to personally participate in this voyage. Believe me, even just a few issues of the memoirs will sell the newspaper for a few days after we go back. ?Originally, when this fleet first visited, its influence was not so great. It was only later that as I visited many former Commonwealth countries along the way, I really gained a lot of face, which reminded many British people of the imperial cruise more than 70 years ago. After all, this was the most powerful time in the history of the British Empire. Just like the Chinese people will never forget the Han and Tang Dynasties, every British person also pretends to have an imperial dream. But the female reporter next to her did not become happy because of this: After all the trouble to get on this boat, how can we possibly recoup our money by just selling the newspaper for a few days? ?She said and drank the wine in the glass: Actually, I originally heard that this cruise would involve some people related to the royal family Member of the royal family? ?Spencer''s voice unconsciously lowered a lot. In the past two years, almost all news about the royal family has been highly sensitive: I just heard that there is royal support behind this fleet trip. Because now we need some exciting topics to dilute the scandal of the royal family... At this time, a pair of young men and women in bright clothes walked over. The two of them changed to another topic in perfect agreement. Hello, can you take a photo of me and my fiance? Obviously, the other party saw the camera bag next to them. "Can." Seward glanced at Spencer sitting next to him with complicated eyes, and then agreed. Just by the window, with the warship behind as the background. ?The man and woman stood by the floor-to-ceiling windows of the banquet hall. ?Seward adjusted the camera casually, then squatted down and started focusing. In fact, there is no necessary connection between journalists and photography, and interview journalists like her rarely need to press the shutter themselves. The camera is just part of your professional image and just in case. However, the moment she focused the viewfinder on the two people, she discovered that a plane was approaching from the stern of the Excellent in the distance outside the window. Even as a military illiterate, Seward knew over the past few days that the Royal Navy''s carrier-based aircraft landed vertically, and there was no such approach procedure. The reporters intuition allowed her to quickly adjust the focus and take a series of photos. ??If someone who didnt know the situation saw this scene, he might think it was a carrier-based aircraft preparing to land. In fact, even Wang Wei himself on board No. 12 had the urge to put down the landing gear and give it a try. ?But in the end, I still maintained my sanity. ?A ski-jump aircraft carrier without an angled deck does not have enough space to complete a go-around. Furthermore, he really hasnt practiced before. If something goes wrong, everything up to now will be over. The moment the plane passed over the aircraft carrier, he pressed the photo button of the reconnaissance pod. ?At the same time, I noticed from the corner of my eye that the ground staff next to the Sea Harrier aircraft below subconsciously lowered their heads to dodge. ?This is also the deterrent effect brought by the action of "shaving one''s head". This is especially true for the Royal Navy, which once sank several ships with iron bombs dropped by low-altitude attack aircraft. ?Thinking of this, Wang Wei suddenly had a bold idea in the blink of an eye. Before departure, their superiors told them that they could jettison the auxiliary fuel tanks on the aircraft if necessary. The original intention of this sentence is obviously to express when air combat or acceleration is required. But if it is extended, then Wang Wei feels that now can also be regarded as a "necessary time." He turned the weapon selection **** to the outermost position with the words "auxiliary fuel tank". The moment the plane left the bow of the ship, the two auxiliary fuel tanks under the wing of No. 12 fell off like two bombs. The moment they touched the water, they bounced back up and floated several times before finally diving in. nautical miles. At this time, the JH-7 backseat pilot who was flying over from the other side of the fleet raised his camera and recorded this rare moment from a third-person perspective. I really want to try what it feels like to land on an aircraft carrier if I have the chance... ??Wang Wei, who completed the flyby mission, turned back and looked at the increasingly smaller aircraft carrier in his field of vision and thought to himself. After all, for any naval aviation pilot, boarding an aircraft carrier is the ultimate dream. ?At almost the same time, in the banquet hall of the Royal Cruise Ship, Seward, who had taken several photos of the plane, was preparing to refocus on a pair of lovers posing in front of the window. But at this time, some knowledgeable people have noticed the anomalies in the distance. Oh God, thats not our plane on the aircraft carrier! An exclamation instantly attracted the attention of the entire banquet hall, and almost all eyes were immediately turned to the window. ? Its just that in the absence of equipment, most people cant actually tell the aircraft model clearly, let alone the distance of thousands of meters. As if to answer everyone''s confusion, the man had just finished speaking. Before anyone could ask his doubts, another slender fighter jet flew from the outside of the Royal Cruise Ship at a much closer distance at the same exaggerated height. Pass. ?Whether it was intentional or not, the plane even deflected its fuselage slightly to show tourists two large, two small and four missiles hanging under the wings. Now, people with good dynamic vision can see it. Because there was a pair of five-pointed stars with red ribbons on both sides painted on the underside of the wings of the plane. Even those with little military knowledge can tell that this is definitely not the logo of the Royal Navy or Air Force. "It seems...is the Chinese Air Force?" At the end of the day, there are people who are more knowledgeable. ?But another sharp female voice immediately sounded: Look! That plane dropped two things. Are they bombs?! ??Everyone who was already dumbfounded focused their sights in the distance again, and happened to see the scene of two things "floating" on the sea. ??Haunted screams instantly echoed throughout the banquet hall. ??The orchestral music that had been playing just now came to an abrupt end. ?At this moment, only Seward and Spencer maintained their composure. They know that their trip is worth it! The 815-pointed star logo with two wings was indeed called the Air Force aircraft emblem when it was named in 1949, but in fact it is used by both Hainan Airlines and Army Airlines, and the name has not been changed... (End of this chapter) Chapter 339 Triumph Chapter 339 Triumph Rear Admiral Alan West, aboard the USS Excellence, left CIC in the last half minute. As the fleet commander, there is nothing he needs to do under the current situation. At the moment when he saw three Chinese fighter jets rushing towards the fleet, the major general''s mind almost went blank. ?What appeared in front of my eyes were the menacing figures of two A4 Skyhawk attack aircraft. ?This made him suddenly have a vision of returning to the frigate Enthusiasm 15 years ago. Whats even more outrageous is that the plane that flew over the aircraft carrier actually dropped two auxiliary fuel tanks into the sea when it left... ?This is basically equivalent to riding on the face and taunting directly. But he had no choice. Everybody is numb. ?After a few breaths, West finally recovered from his sluggishness. Fortunately, compared to the ground staff scattered on the deck, the major general standing motionless outside really has the demeanor of a big boss who remains unchanged despite the collapse of the mountain. He just hopes that this matter will not have a big impact on public opinion. Otherwise, if he does not go further in the future, he may not even be able to keep his current position. ?Just as this thought came to his mind, he caught sight of the royal cruise ship about 1 kilometer away from the corner of his eye... ??Although the major general has not been there personally, he knows that there must be many good journalists up there if he thinks about it. He felt he had to do something. After returning to the CIC, West glanced at Colonel Dennis, who was also pale, and Lieutenant General Boise, who didn''t show much, but also lowered his head and remained silent. To be fair, based on the tactical proficiency and technical capabilities displayed by the opponent''s six aircraft, on the premise that they could not fire, even if the two Sea Harriers used for verification and evacuation had not been sent out, nothing would have happened. Variety. The key to the problem is that we are not mentally prepared for this and underestimate the enemy. Second, the aircraft carrier is at its weakest moment when the four returning carrier-based aircraft are landing. ?Thinking of this, the major general couldn''t help but feel a little sad. ?The other party did not use radar during the whole process, and by extremely coincidence, they caught the critical moment when our own fleet was recovering the aircraft and the deck was in the most chaos. It can only be said that even God is not on the side of the Royal Navy this time. ?However, this does not stop him from planning to use some spring and autumn techniques in the report to shift part of the responsibility, preferably the main responsibility, to Boise. As for what offended the future First Sea Lord It''s so funny that I don''t have time to think about the future, let alone the fact that I may not be able to handle it right now. ?After such an incident, whether Boise can still be the First Sea Lord is a question. If you offend, you will be offended. The key to the problem now is that he needs to win the support of another key figure, Captain Dennis. ?Furthermore, try your best to save some face of the Royal Navy. ? ? After calming down a little, West took over the command of CIC again. ??Although his heartbeat and blood pressure are now racing, he must appear calm and indifferent. Let each ship in the fleet report on the air defense situation just now. ??In this kind of confrontation, where there is no misfire, there is actually no predetermined outcome. The main thing is to fight in the end to see who can''t hold back. Because if the attacker really insists on flying over your fleet, they will be able to rush in after all. Its just that if you are under the lock of anti-aircraft fire throughout the whole process, doing this is completely self-defeating. So the first thing the Major General thought of was to see if any ship in the fleet had completed the lock before the opponent broke through. ??As long as the radar information map of the locked state is released, the other party will be embarrassed. However, there was still confusion over fleet radio. ?Most of the young commanders of the destroyers and frigates had not experienced the 1982 war, and many were panicked when faced with such a scene. ??And the sea javelin on the Type 42 destroyer is unable to respond to such a close target. After a few seconds, the major general finally received the first decent answer. From the captain of the Somerset, Dortham Slater. He said that the 910 guidance radar equipped with the Seawolf air defense missile was never able to lock the target. It barely completed tracking until the opponent was almost close to visual distance. However, due to the obstruction of other ships and the influence of sea clutter and electromagnetic interference, the signal was very weak. Unstable and will unlatch after a few seconds. ?So he switched to the manually controlled TV channel at the last moment. Although it was too late to complete the optical tracking, he was able to capture the opponent''s back in the aiming frame as he left gracefully. The captains of several other ships did not even have time to make such a response, and almost watched the scene where their own aircraft carrier was almost ejected. ??West let out a long sigh and sat down on the chair a little slumped. When you are tired, destroy it. Fifteen years have passed, and the situation of the Royal Navy seems to be no different from what it was then... ? ? Capturing the opponent''s back, let alone not being able to lock it at all, even if it is locked, it can only be regarded as "post-action air defense" at best - Others'' attack has been completed, and our side will suffer a loss of blood no matter what. Notify Captain Slater and ask him to save the relevant video and image data. In any case, something is better than nothing. In the Royal Cruise Ship on the other side, the commotion caused by the two "bombs" just now continued. After all, the plane that flew past the window just now showed them the weapons it carried. In fact, the current J-8C does not have sea attack capabilities. Only two J-Handian-7s in the entire fleet symbolically carry one YJ-81 anti-ship missile each. Its just that most people cant tell the difference between drop tanks, bombs, air-to-air missiles and anti-ship missiles. Especially after someone shouted that there was a bomb. ??At this time, there were no mobile phones that could take photos and videos anytime and anywhere, and the cameras in the hands of Seward and Spencer did not have video functions, but they still had a tacit understanding of recording the scene with photos and tape recorders respectively. Some people panicked, some hid under the table with their heads in their hands, and some even rushed out to prepare to lower the lifeboat... The various aspects of all sentient beings are undoubtedly revealed. Seward even had a press release in mind. It wasnt until about a minute later that a more knowledgeable passenger squeezed onto the stage in the center of the banquet hall and loudly told everyone through a microphone that they were probably just two auxiliary fuel tanks and not bombs, and the farce finally ended. ?The men and women at the scene tidied up their suits or dresses again, and returned to the banquet with unsettled moods. It seemed that nothing had happened, and only the fragments of wine glasses and dinner plates that had not been cleared away by the waiter on the floor told of the chaos just now... At 17:48 on June 30, 1997, under the eyes of most of the passengers on the Royal Cruise Ship and the fleet commander Rear Admiral Alan West, a fighter jet with the August 1 red five-star painted on the vertical tail and the tactical number 81192 The 8C fighter jet almost passed by the Royal Navy R06 aircraft carrier HMS Excellence. In the cockpit of Unit 12, Wang Wei naturally didnt know that his act of dropping two auxiliary fuel tanks almost triggered the other fleet commanders PTSD. It just feels very refreshing and transparent. Since he arrived at the training base in Qingtang Province more than a month ago and heard that the British were going to send a fleet to provoke at this time, he has been thinking about what he should do to vent his anger. Now its finally done. ?Wang Wei took a look at his fuel gauge. Due to a more fuel-consuming ultra-low-altitude flight, the remaining fuel was already a little tight. Therefore, after leaving the range of the opponent''s fleet, he quickly led the fleet back to the normal cruising altitude. Yuejiang 10, how is the situation over there? ?After calming down his excitement slightly, Wang Wei was able to spare his energy to pay attention to the division commander who had attracted the attention of the opponent''s carrier-based aircraft. Yuejiang 12, everything is going well for us. We have been dealing with the two Sea Harriers for a while. They didnt lose anything. They probably ran out of fuel just now and escaped from the battlefield. The voice on the other side of the radio was slightly breathy, and it was obvious that it was not that calm. ??And flying with heavy g-load is indeed a burden for a pilot of Tang Yiping''s age. ?However, in any case, this embankment-building operation achieved near-perfect success at both the sea and air levels. Okay, the mission is over, regroup and prepare to return! (End of this chapter) Chapter 340 Western journalists who run fast Chapter 340 The fast-running Western reporter An hour later, the six aircraft participating in the operation finally entered the refueling area set up by the Air Force in advance. ?Under the guidance of the operator, the pilot soon saw the IL-78 tanker ahead with its red and green navigation lights flashing. Aerial refueling at night is definitely like dancing blindfolded on the tip of a knife. If the docking fails, the refueling drogue may even be torn off. ?This thing itself is not bad, but the fuel warning lights of several aircraft have been on for a while. If they can''t refuel, they will definitely not be able to fly back to the Lingshui base. Fortunately, everything was safe. All successfully connected. ??The UPAZ-1 refueling pod equipped on the IL-78 began delivering fuel to the six aircraft at a rate of approximately 1,600 liters per minute. ?Wang Weis heart, which had been hanging just now, was finally relieved. Since the belly auxiliary fuel tank was replaced with a photo reconnaissance pod, its fuel capacity was the least optimistic among the entire mission formation. It could only last for about 10 minutes at most before it began to receive fuel. Its finally continued now. Yuejiang 12, I happened to take a photo of you when you threw the auxiliary fuel tank into the middle of the opponents fleet. I will give you a souvenir after you return. ??The voice of the pilot in the back seat of No. 21 came over the radio. That is, the JH-7 that followed him and flew over the opponent''s fleet. This was not part of the initial mission plan, but the two pilots of aircraft No. 21 used to be the main force of the East China Sea Fleet aviation force. They often had various "friendly exchanges" with the Air Self-Defense Force and discovered each other during the mission. I often let the F4EJ backseat pilot, who was doing nothing most of the time, take photos with a camera to collect evidence, so I built one for myself. ??The only fly in the ointment is that this camera, which is mainly used to take pictures of the Self-Defense Forces, is actually from Olympus. Thank you, its very memorable. Yuejiang 12, you threw two auxiliary fuel tanks at their fleet? Tang Yiping, who had been listening on the radio channel but never spoke, suddenly asked. Ah...yes, Commander. ?Wang Wei gave an explanation that he had already thought of: I carried one less auxiliary fuel tank than you guys, so in order to reduce fuel consumption on the return trip, I threw away the two empty auxiliary fuel tanks, which can reduce resistance. ??It is naturally impossible to deceive Tang Yiping with such nonsense. Even if it is really necessary to dump the auxiliary fuel tank due to insufficient fuel, doing so at ultra-low altitude will only increase the risk. But he decided not to expose this little trick. China''s aviation unit has been held back for too long with no results. Originally, it would have been fine if it had always been in this state, but at the beginning of this year, the Air Force suddenly started a big operation in Kashmir. As one of the few people who know the inside story, it is understandable that the young guys in the Naval Aviation Corps are itchy. It was just an auxiliary fuel tank, and it was not like two bombs were actually dropped. ??With such a shameful thing, the Royal Navy''s first thought is definitely to cover the lid and make peace with it. There is absolutely no reason to make a big deal about it. ?Of course not in China either. The current overall trend in relations between China and Europe, including the United Kingdom, is to warm up. This kind of thing may be a big deal for the military, but at a higher level it is just a minor episode. ?Although he felt it was a pity, Tang Yiping felt that it was a lot more balanced when he thought that Deputy Commander Zheng, who shot down the MiG-25, was not publicly publicized. ?After the aerial refueling was completed, everyone returned to normal level flight. The next 40 minutes of the return journey seemed extremely dull compared to this exciting night, so much so that it was a bit boring. ??However, for Seward and Spencer on the Royal Cruise Ship, the real excitement has just begun. After experiencing such an incident, although the dinner party on the top floor was still going on, most people no longer had the excitement they had before. The two reporters who were already sure that they had got the explosive information had long forgotten about the big shots on the ship. After filling their stomachs with a few bites of food, they returned to their suite as quickly as possible. After the frightening 30 seconds just ended, the entire fleet fell into a headless state for nearly an hour. Until recently, the huge fleet began to gradually turn around and sail south. The USS Excellence aircraft carrier recovered four Sea Harrier fighter jets from two directions, but did not take off new aircraft to pursue the Chinese aircraft that had left Technically speaking, this is simply because the Sea Harrier, which can only fly at most about 900km/h when loaded with bombs, is simply impossible to catch up with the opponent''s 6 supersonic aircraft in retreat. There is no need to make useless efforts. But from a journalistic perspective, this kind of thing can be interpreted in ten thousand ways. As for which one to adopt, it depends on the judgment of the media... What did you just take pictures of? ?In the living room of the suite, Spencer asked excitedly as he took out the laptop he had brought on board and turned it on. At the beginning, it was a plane approaching an aircraft carrier. What happened behind it? It was so chaotic. I wasnt really sure. I was taking pictures based on instinct. Seward next to him said as he took out a roughly square memory card from his camera. But well find out soon. ?Then he gently slapped Spencers extended hand away: Ill do it myself, youre too messy, and youll be in trouble if it breaks. This is SanDisks new card. I spent 1,600 pounds to buy it, and the editor-in-chief actually said that they can only reimburse me half of the cost at most This CF card with a capacity of up to 16MB was absolutely astonishing in 1997. Although it could only hold about 30 photos of average resolution together with the body storage, it was not suitable for most paper media. It''s enough for use. Look, this is the first plane. It almost wiped the deck and flew over the Excellence..." This is the one closer to us in the back. I even captured the missiles under its wings. Oh my god..." ?Siward''s voice trembled slightly. ? ? Coming from a writing business, she is actually not very good at taking pictures, but today, somehow, this camera seems to be like a divine help. More than half of the 30 photos are of great news value. You even clearly captured the aircrafts emblem and serial number. I think the editor-in-chief must like this photo very much. Spencer also praised next to him, "The one nearby is 81193... I think I should probably find an expert to explain the meaning of this group of numbers after I go back." No, we cant wait until we go back. Seward shook his head and said this was too slow: We will get the first draft out tonight and send it back to China via satellite network, so that the editor-in-chief can finalize the main tone of the report The Guardian, where the two work, is not a neutral media, so many reports must make choices. "etc" Spencer next to him said suddenly, and at the same time he reached out and took Seward''s hand that controlled the mouse, pulled the photo back to the front, and then zoomed in: The screen shows the Chinese plane just flying over the aircraft carrier. Look, this man standing next to the fence on the Excellent... "this" ??The resolution of digital cameras in this era did not yet support this level of magnification. The two could only guess from the other''s uniform that this might be fleet commander Rear Admiral Alan West. Inna, do you think he was calm or panicked? ?Spencer, who retracted his hand, asked in a half-joking tone. ?Siward looked back at him: Wellit depends on whether Major General West supports the Conservative Party or the Labor Party (End of this chapter) Chapter 341 July 1st Chapter 341 July 1st On the other side, Lingshui Airport in Qiong Province is 1,600 kilometers away. The 12 aircraft involved in the operation landed smoothly on the runway one after another. What greeted them was naturally a celebration ceremony that had been prepared long ago. However, because it was at night, the scale was not large. They only had a few bouquets of flowers and some ribbons and other decorations. ??There were also reporters from the People''s Liberation Army Newspaper who came specially from the capital to take photos of the members of the task force. The background is naturally those fighter planes that have just returned to the tarmac. Compared with the previous overseas operations, although this time there is a high probability that it will not be made public and high-profile, at least there is no need to hide it even within the military system. Praise must be reported when it is time to report it, and relevant publicity materials must also be prepared. ?Ground staff also surrounded us immediately. Other aircraft are not in a hurry, but the camera pod hanging on Wang Wei''s No. 12 aircraft must be taken down immediately. The film bin inside is the most important result of this mission and needs to be handed over to the General Staff Intelligence Bureau as soon as possible. It was only when they were able to relax completely that everyone suddenly remembered that there was an unsung hero who was not directly involved in the entire operation but was equally important. The aircraft is shipped with 8J. ??In addition to attracting firepower and searching for targets in case of need, it should also conduct simulated command of the mission formation. Although in order to avoid causing interference to other pilots, the commanders in the Y8J will not enter the radio channel, which is basically equivalent to just playing a single-player game. But even so, for the Chinese army, air command is a brand new stand-alone game that has never been played before. You still need to pay attention to it. ?Especially after such a mission that was extremely close to actual combat, everyone had an intuitive understanding of the role of air command. ?The two JH-7s actually took on the command role during the embankment building operation. In addition to their traditional electronic jamming, they also used radar signals to trace the target''s exact location when surface ships were unable to maintain contact with the enemy''s main fleet, and used the passive radar detection function to sense two approaching aircraft in advance. The intercepted Sea Harrier thus commanded the formation to respond promptly. Even without a data link, just relying on a backseat weapons controller for voice command has already played such a great role. ??What does the full version of the early warning system look like? By the way, how is the situation over there at Polaris? ??Tang Yiping, who had already packed his equipment, found his chief of staff from the crowd after the celebration ceremony. After hearing this question, the other party was stunned: I dont know yet, but when Deputy Chief of Staff Kang came back, he said that he would conduct a unified mission summary tomorrow morning, so we should know by then. At this point, he paused again, and after making sure there was no one around him, he continued in a low voice: But after Polaris landed just now, I saw that the faces of the crew members seemed not to be very good. It may be that they encountered some special circumstances. Is there such a thing? Tang Yiping glanced at the "Big Nose" patrol plane parked opposite from a distance. ?Due to range and mission setting issues, this aircraft returned a few hours earlier than their other 12 aircraft, so it had completed post-flight preparations and was covered with the iconic camouflage tarpaulin. "Um." The division chief of staff nodded: But ignore them for now. This mission must be a complete success. The celebration drinks for you have been arranged. We will go directly there later. The political commissar has specially arranged a TV at the scene. You must watch it when the time comes! As he spoke, he patted Tang Yiping heavily on the shoulder: We have successfully completed the **** work. Although we cannot arrive at the scene, we still have to witness such a big event with our own eyes! This celebration banquet was only arranged within the division, so it was not a grand occasion. ??The highest-level leaders present were the political commissar of the division commander of the 9th HNA Division and Deputy Chief of Staff Kang Shijun of the Naval Aviation Department. ?But precisely because of this, the atmosphere at the scene was harmonious and natural. As the person who performed the key flyby mission, Wang Wei naturally became the focus of attention at the scene. Of course, it is impossible for a pilot on a combat readiness training mission to drink alcohol, but one round after another of beer still made him feel a little full soon. Fortunately, everyone was quite measured and quickly ended the drinking party. Brother Wang, I promise to take your photo. ??The weapons control officer from the East China Sea Fleet Aviation Force handed Wang Wei the photos that had been developed in a hurry after landing. Even specially enlarged it. Many comrades who had not been given the opportunity to participate in the operation immediately gathered around. Since the banquet has been going on, they have only heard some fragmented descriptions, and it is not clear what exactly happened this evening. ? In the photo above, it is the scene where Wang Weis No. 12 aircraft just flew over the aircraft carrier Excellence and dropped the two auxiliary fuel tanks under the wings. Naturally, it attracted a burst of cheers and jeers from the crowd. If the two auxiliary fuel tanks were replaced with bombs, this aircraft carrier could be sunk ?Of course it is impossible to say this kind of thing publicly outside, but when everyone is one of our own people, there is no restriction. The J-8s auxiliary fuel tank is 760 liters. Even if it is converted into two 500kg bombs, a light aircraft carrier may not be able to carry it..." ?Wang Wei quickly waved his hand: If its time to take action, its definitely not possible to fly over the opponents head and bomb like this. This time its just a gesture, a gesture I remember that in 1982, several British warships were sunk by iron bombs bombed from the air. Brother Wang, this time, I am afraid it will give some people nightmares. ??The weapons control officer in charge of taking photos also seized the opportunity and joked. ??Everyone in the joy did not notice that Tang Yiping also poked his head in from the outside and saw this photo. This photo can be developed again, enlarged, and hung in the Teachers Hall of Honor ?The division commander''s voice caused the others to fall into silence for a moment, but they soon realized that the other party did not mean to criticize them. Besides, when you look at Xiao Wangs flying altitude, it looks like hes landing on an aircraft carrier. ??The division chief of staff who was following Tang Yiping also pointed at the photo and said. Chief of Staff, dont tell me, I really had the idea of ??putting down the landing gear and rubbing it, but there were too many people on the deck, so I didnt have a chance..." ?Wang Weis answer triggered another round of cheers Alaslanding on the aircraft carrier ??This topic was suddenly mentioned, and Tang Yiping couldn''t help but sigh a little when looking at the photo: Speaking of which, in the 1980s, we even considered introducing an Invincible-class aircraft carrier like the Excellence from the United Kingdom. One sentence can temporarily silence the noise around you. ?This story is relatively unfamiliar to most of the young people present. ?Seeing that many people were interested, Tang Yiping continued: "At that time, it was still the so-called honeymoon period. Many things could be bought, such as the engine used by the Flying Leopard, the electronic equipment of the J-7M, and the 051S destroyer, which was just short of finishing. They all came from the British. Back then, This combination of light aircraft carrier and vertical take-off and landing aircraft is still very attractive. Its just that later on, one was that their price was too high, and the other was that our relationship with the West was not that good, so this matter was never mentioned again. Now it seems that this kind of light aircraft carrier is nothing more than that Someone in the crowd answered. You cant say that either. ?Tang Yiping shook his head: Although it is definitely not as good as a serious large or medium-sized aircraft carrier, even a vertical short take-off and landing aircraft like the Sea Harrier is much better than a helicopter. Take this operation as an example. If our JHD-7 hadnt discovered in time that the Zhuoyue was recovering the aircraft, and took advantage of the opponents weakest moment to take action, Im afraid it wouldnt have been so smooth. "If a navy really wants to go to the ocean, then aircraft carriers are still indispensable. It''s a pity that I have to be grounded in two years. Carrier-based aircraft... I will definitely not be able to catch up, but I am still very optimistic about you guys. Young people have opportunities..." In the relaxed chat, time flies by minute by minute. At 11:42 pm, the political commissar turned on the TV on time. The ceremony officially begins Everyone fell silent. Arise, you who do not want to be slaves I dont know who started it. Everyone present gathered in a semicircle and watched the five-star red flag and redbud flag rising slowly amid the national anthem. ?That is exactly what they are fighting for. (End of this chapter) Chapter 342 In the end, I couldn’t escape the lecture. Chapter 342 In the end, I still cant escape the lecture. Of course it was not only the commanders and fighters of the 9th Hainan Division who were watching all this on TV. Chang Haonan, who was far away in the capital and still didn''t know what happened in the past half day, also gathered at Du Yishan''s home with Tang Lintian and Liu Hongbo. While waiting for the ceremony to begin, several people had been busy making dumplings. Lamb meat stuffed with carrots. Although the ticket system has been abolished in 1997, it is not easy for most ordinary families to enjoy such a big meal of meat dumplings. At least it was not until the end of last year that Chang Haonan received his first bonus from Factory 182, and finally said goodbye to the days of having to calculate expenses for food every day. Hey! The mutton in Academician Dus house is really not spicy at all! Tang Lintian picked up the enamel basin filled with stuffing, put it under his nose and smelled it. "Of course, Yan Liangchu brought this from his hometown in Tongliao. Who of you wants it?" ?Du Yishan, who was sprinkling flour on the rolled-out dumpling wrappers next to him, said. Liu Hongbo had just washed his hands and walked into the living room. Hearing Yan Liangchu''s name, he casually interjected: "Speaking of Dr. Yan, I was planning to call him here today, but it turns out that he has been on a business trip to Shengjing recently. He said he was working with the 601 Institute and the Sukhoi Bureau to build a database of aircraft load spectra. , to solve some structural reliability design issues in the original plan of Project 11. Chang Haonan, who had not interrupted just now but was adjusting another pot of stuffing while paying attention to the TV screen, was also attracted at this time, and blurted out in surprise: You started working on Project No. 11 when you were a doctoral student? Strictly speaking, the title + doctor is generally used to refer to people who have obtained a doctorate, but have not engaged in related work, and therefore have not been able to obtain relevant professional titles. But in environments such as universities and research institutes, whenever a person joins a job, he must have a professional title such as engineer or lecturer. Therefore, in most cases, Dr. This is the PhD candidate who is about to study. Over time, it became a convention. So his first reaction was: Are there any experts? As soon as Chang Haonan finished speaking, Du Yishan was fine. Tang Lintian, who was opposite him, immediately stopped moving his hands and looked at him with an indescribable look. ?Its okay for others to say this. You, Chang Haonan, are the people who have already launched several big projects without even graduating from a bachelor''s degree. Is this good? not good. ??Tang Lintian opened his mouth, as if he wanted to say something. But he didnt say it out loud. ?Young people dont follow martial ethics, so the old man like him didnt know how to answer for a while. ??And Liu Hongbo, who was trembling when surrounded by three big guys, simply covered his face and lowered his head. Who am I, where am I, I am an ordinary university professor, why do I want to join this bureau... NoI mean Chang Haonan, who saw this scene, also realized that the wording he just used was somewhat inappropriate, so he made up for it a little: Ive been busy with the 973 project recently, so I want to get to know you... Du Yishan understood Chang Haonans feelings better and explained directly: "Yan Liangchu''s situation is different from yours. He is a college student of workers, peasants and soldiers. After graduation, he worked in the Aircraft Strength Institute for more than ten years before taking the postgraduate entrance examination. Although this institute is affiliated to the Ministry of Machinery Industry, in recent years, because of their old The industry is in a recession, and his main business is research on aircraft and rocket structures, so he is already a very experienced aviation veteran. "Furthermore, when he went to Shengjing this time, he was encouraged or inspired by you. Based on your previous results, he came up with a set of spatially distributed load testing technology. It just so happened that 601 over there because of you and In the case of Xiao Yao, we started to accept outstanding graduate students from universities into the project team. At this point, he couldn''t help but glance at Liu Hongbo, who had just raised his head. So the latter lowered his head again. ??Tang Lintian, who had just recovered from the indescribable situation, also nodded: Indeed, for this matter, Dr. Yan ended the project that he had been working on for three years and started a new project of compiling the load spectrum. His attitude was quite determined. This is a good thing, we just want to make Chinas Su-27 better than Lao Maozis own! ?Chang Haonan kept making dumplings in his hands, but his joy was already beyond words. ?Just after Du Yishan talked to Tang Lintian, he also recalled Yan Liangchu, who was also later evaluated as an academician. After entering the 21st century, Chinas important aviation projects, including fourth-generation fighter jets and large aircraft, have basically involved him. ? Whats more coincidental is that the technology used by Chang Haonan on the MA60 was originally overcome by Yan Liangchus research team.??????But that was around 2010. Now, the other party has been influenced by Chang Haonan''s results and embarked on the same track as the previous life ahead of schedule. In short, looking at it this way, the two of them seem to be quite destined. ?Of course, this is not the only reason why Chang Haonan is happy. More importantly, as his own achievements continue to increase, it has led to more and more other people and even progress in other research fields. ?The biggest benefit of this is that Chang Haonan, who has few skills, does not need to personally participate in many repetitive projects. For example, the results he previously achieved in Project 83 can be applied by others to the two third-generation aircraft projects and the upgrade of the JH-7. The technology developed in Project 10 can also be applied to Project 11. Inside, work efficiency is greatly improved. ?This is also the reason why Chang Haonan can now stay in Beijing and focus on basic research projects such as die forging presses and simulation software for a period of time. Otherwise, it would be like when he was just reborn, just rushing around would have been enough for him. ?Although there is still some fire-fighting work, at least the same type of fire basically only needs to be put out once. By the way, junior brother, what are your plans for the second half of the year? Liu Hongbo raised his head for the second time and asked cautiously, Our textbook is ready for publication. If nothing else happens, your graduate students should be the first batch of students to take this course In fact, this sentence has two meanings. First, if you are free to come to class, can you teach directly for me? Second, if you are unwilling to attend class, then for the sake of all of us, you should not come to class. But this expression is still too euphemistic. So Chang Haonan thought that Liu Hongbo wanted him to attend a few classes and then make an evaluation. The second half of the year...should be quite busy. Chang Haonan thought for a while and then replied: "There are two plans that I will take the lead or focus on. In addition, I will also participate in the higher education aircraft and Project 10 at Guizhou Airlines, and the early warning aircraft jointly developed by the 14th Institute and the 603 Institute, but the early warning aircraft I dont know when it will be approved The names of these projects made Liu Hongbo sweat on his head The current ranking of my junior students is basically on par with senior professors in some fields. The only difference between him and a great academician like Du Yishan is that no one has paid him to name him yet. ?But looking at this posture, its very fast. After all, if you think about it, it seems that all the opinions put forward by Chang Haonan eventually became at least a project. Some have even become ministries or even national-level plans. ??Who wouldnt be greedy after seeing this success rate... After a pause, Chang Haonan continued: However, since you have spoken, Senior Brother Liu, most of these projects will be in the capital in the second half of the year, so I can still find time to attend a few classes... Liu Hongbos head was sweating more: No, what I mean is, this...if Junior Brother you are sitting below and I am on the stage, I wont dare to speak..." So can you... show me two lessons first? Before Chang Haonan could react, Tang Lintian and Du Yishan on the side also joined in. Its just two lessons. With Xiao Changs level when you taught simulation before, you can take it casually, dont have any worries... Yes, Xiao Liu is your senior brother after all, please help me... Looking at the three people who were perfectly connected, Chang Haonan seriously suspected that tonight was a set up... But since others have said so, what can he do? Had no choice but to nod in agreement. ?But I emphasize again, at most its only one section. In the end, Liu Hongbo agreed without even hesitating. This made Mr. Lu Xun''s words ring in Chang Haonan''s ears. Chinese people always like to compromise MD, I was tricked! (End of this chapter) Chapter 343 Even after victory, we must learn from our experiences and lessons Chapter 343: Even after victory, we must draw lessons from our experiences With the declaration of "You can lay off, we will take over", the entire handover ceremony reached its climax. These days, even in the capital, there is no ban on setting off fireworks, so at this time, bundles of fireworks exploded in the air outside the window, making the night sky look like day. Good guy, the atmosphere tonight is almost the same as during the Chinese New Year. Chang Haonan held a colander in his hand, put the dumplings that had floated in the pot into a basin, and then looked at the colorful flames outside the window. Thats different. Liu Hongbo, holding soy sauce, vinegar and chili oil in his hand, responded next to him: The Spring Festival happens every year, but today will be gone in the past. The other three people laughed dumbly. That is indeed the case. Even though Hong Kong Island is not the first or the last place to be reclaimed, its symbolic significance is really great. After all, a century of national humiliation began here. You said, this British man didnt do anything behind his back tonight? Facts have proved that when a group of people talk about this kind of topic together, whether they are retired old men or academicians and professors, they feel the same. "There should be, but I think we will all have ways to deal with it. After all, the flag has been raised successfully, so what else can go wrong." Du Yishan has quite a lot of life experience, and he immediately came to a conclusion that was very close to the truth. ?Chang Haonan thought of the news he saw in the newspaper a few days ago: "I read in the newspaper before that the British sent a large fleet over, but it seems to have been in the South China Sea and did not dare to continue to provoke further north. I don''t know if they will do anything tonight." "Should I say it, although our air force equipment has made some progress, the navy does still owe a lot. Not to mention aircraft carriers, there seems to be no larger surface ships." When it comes to the fleet, Liu Hongbo is obviously interested. Men can treat warships as wives. There are a few people who dont like the navy. Speaking of this air force equipment, our Comrade Xiao Chang plays the most important role in it..." ?Du Yishan picked up a dumpling and said cheerfully. ?This day, which attracted worldwide attention, seemed to pass peacefully. Excitement and celebration are always short-lived. The next day, everyone has to devote themselves to work with more ambitious goals. Two days later. In a conference room at the Lingshui base, all members who participated in the embankment construction operation sat together again. Its just that this time its the summary session after the mission. Originally, the naval aviation department was planning to hold a meeting early the next morning. ??However, the impact of the embankment operation has obviously been beyond the scope of a certain military service. After all, Air Force aviation, naval aviation, surface ship forces and even the Marine Corps on standby are all involved. ??More importantly, in the early morning of July 1, the British side sent someone to deliver a secret note. ?Only a very few people know the specific content. However, combined with the fact that the British parliamentary election, which had been deadlocked for nearly two months, suddenly showed a one-sided trend, many Conservative MPs even actively chose to give up their seats, allowing Anthony Charles Blair to become the 51st Prime Minister with an unprecedented advantage, and China Both China and the UK chose to handle this matter in a completely low-key manner. There is obviously some ulterior connection behind this. ?Furthermore, all the internal publicity that had been prepared was stopped, and everyone directly involved in the operation was asked to write a written report on the situation. So the whole next day, everyone was racking their brains and busy with this matter and failed to make time for a meeting. It was not until the warships Jingjiang and Rongzhou, which also participated in the operation, returned to port that a larger summary meeting was held at the Lingshui base. The meeting was chaired by Yang Shuyu, who had participated in the air-sea joint exercise before and had personally experienced the power of electronic warfare aircraft, and Shen Tianfeng, who was dispatched by the Air Force. Although the specifications are very high, it is still a summary of experience after successfully completing the task, so the atmosphere is still relatively lively.?????The first step is to set the final tone of the task. Following this is a review of the entire process. Then the results are summarized. Very traditional three-in-one. ??Of course, awards to those who participated in the mission are also indispensable. "Taking into account the good results achieved in this operation, the organization finally decided to award first-class collective merit to three units: the 25th Regiment of the 9th Naval Aviation Division, the 4th Regiment of the 2nd HNA Division of the Naval Aviation, and the 39th Regiment of the 13th Air Force Division. Tang Yiping, Wang Wei, Zhao Yi and other eight people who directly participated in the flyby mission received first-class individual merit..." As Shen Tianfeng read out, everyone had a smile on their face. After putting down the documents in his hands, he explained: "Comrades, here I am just making an announcement. Due to the special circumstances of this mission, the official documents for your meritorious service, as well as medals, bonuses and certificates, need to be awarded at the end of the year. I hope everyone can understand. " ?This is naturally not a big deal, even the order was read out, and the People''s Liberation Army will not blackmail anyone''s medal. ?However, after this process ended, the entire summary meeting did not end. A photo was then displayed on the big screen. A photo of the aircraft carrier deck taken from an oblique downward perspective. There are two Sea Harrier aircraft in preparation for take-off. And a dozen British sailors with different expressions and movements. Apparently, this is one of a series of photos taken by the photoreconnaissance pod. ??Although Wang Wei had reduced the speed as much as possible at that time, it was a very low-altitude flyby after all, and the angular speed was too high, so the clarity of the photo was still not enough to clearly see the person''s appearance. But one can still feel their panic and panic. Our camera pod took a total of 18 photos related to the opponents fleet. This is the best one selected by the General Intelligence Bureau. ?Yang Shuyus words were full of pride, Not only them, but I also think it was a good shot. The British came with a fleet. They originally wanted to scare us, but what happened? They themselves were scared away. What does this mean? When the leader uses a question, there are two possibilities. First, he will answer it himself later and ask questions. Second, he needs a supporter. Now it is obviously the second case. So someone in the venue said: It shows that imperialism is a paper tiger! Many people chuckled. For a long time, especially in the past few years, the confidence to say this was actually not sufficient. But its different today, its very satisfying. "This sentence is true. It is indeed a paper tiger. History and reality have proven countless times that as long as we are not intimidated, the enemy will be afraid." However, when speaking of this, Yang Shuyu changed the subject: However, a paper tiger is still a paper tiger. This is from a strategic perspective. From a specific and local perspective, we still need to pay attention to it. Comrades, although we can say that we have achieved a complete victory in this embankment building operation, we still have a lot of experience and even lessons to learn. The atmosphere in the venue suddenly became serious. Next, let me ask Comrade Kang Shijun, who also participated in this mission and served as the commander of the Yun-8J warning aircraft, to say a few words! (End of this chapter) Chapter 344 Go ask the experts to help Chapter 344: Ask experts for help ?Among the secrets of victory summarized by the People''s Army, there is one: "Learn war from war, and summarize war from experience." It can be understood as a more advanced version of not being arrogant in victory and not being discouraged in defeat. This is also a fine tradition that our army has inherited to this day. Therefore, when Kang Shijun picked up the microphone next to him and sat up straight to speak, everyone in the venue, including several leaders on the podium, took out pens and notebooks to take notes. Dear leaders and comrades, my name is Kang Shijun, so I wont introduce myself too much. During the embankment building operation, the No. 9301 Y-8J maritime surveillance aircraft I commanded, codenamed Polaris, was responsible for attracting the attention of the opponents carrier-based aircraft, searching for the location of the target fleet, and conducting simulated command of the tactical aircraft formation performing the mission. "According to the plan, our aircraft will operate at the edge of the opponent''s carrier-based aircraft''s combat radius to avoid direct contact with the enemy and delay its return as much as possible. However, during the actual execution of the mission, our aircraft was intercepted by the enemy''s carrier-based aircraft. The two Sea Harrier fighter jets suffered severe electromagnetic interference when they were about 80 kilometers apart and about 220 kilometers away from the opponent''s fleet. Even after switching several modes according to the usual training methods, it was still ineffective. " "Because our aircraft lost its target, after continuing to fly for 30 seconds, it chose to turn to direction 45 according to the backup plan, and then flew in a zigzag route. After 10 minutes, the interference disappeared and the radar working status returned to normal. Then it returned due to insufficient fuel. There was no visual contact with enemy aircraft throughout the entire process. Throughout the entire mission, our aircraft completed the task of attracting the attention of the carrier-based aircraft, but due to the failure of the radar, it was unable to command the combat aircraft Since the mission experience of Yun 8J was generally relatively simple, and Kang Shijun also maintained the conciseness and ability unique to soldiers when speaking, it only took about ten minutes to conclude this summary. ?However, in just these ten minutes, the entire venue fell into silence. ?Just before his speech, although everyone had become serious, they still had the mentality of winning a great victory, and the excitement had not passed yet. ?Now, Kang Shijun''s report was like a bucket of ice water falling down, making everyone completely regain their composure. Just because the results are good, it does not mean that there are no problems. First of all, I feel that after all, everyone fought a good battle, and it was a tough battle, so there is no need to make the atmosphere too heavy because of this incident. ?Yang Shuyu, who was still presiding over the meeting, broke the silence: "However, as the Y-8J is an important part of our navy''s anti-ship operations, the reason why such a big problem occurred in this mission that is closest to actual combat still needs to be clarified. Next, we are going to hold this Zhuge Liang meeting. I want to hear Lets hear your thoughts from the grassroots commanders and fighters who are on the front lines. Actually, our crew made some summaries after returning home, and the engineers from the electronics group on site also analyzed the data we brought back. The speaker was Shen Tao, the commander of the 4th Regiment of the 2nd Hainan Division and the captain of the 9301th flight 8J. "I participated in the confrontation exercise organized by the Navy a few months ago. The red team on the other side at that time was the No. 22 JH-7 that also participated in this mission. It also implemented very successful electromagnetic interference against us, causing me to The aircraft lost its target at the last moment of guiding the sea attack, but the characteristics of the interference we encountered this time were completely different from those before. " Judging from the situations encountered during the mission, Electronics Group engineers believe that the other party should have implemented some kind of very targeted interference. Targeted jamming ??The pilot of one of the JH-7 frowned slightly when he heard this. In terms of organization, these two electronic warfare aircraft are also affiliated to the 4th Hainan Airlines Regiment like the Yun-8J. However, because the ground support team at the Donglai base does not have the ability to maintain the JH-7 platform for the time being, these two aircraft were transferred to Qingtang. Before participating in intensive training, I had been parked at Factory 172. Even the four pilots were temporarily loaned from the East China Sea Fleet Aviation Force, so they were not very familiar with their nominal commander Shen Tao. "But you were more than 200 kilometers away from the British fleet at the time. Targeted jamming relied heavily on reconnaissance parameters. At this distance... whether it was their shipborne radar or the airborne radar on the Sea Harrier, it was difficult to accurately detect you. , it shouldnt be so obviously affected. As electronic warfare pilots, they have also gained a lot of relevant knowledge during this period, and understand that interference with radar, especially small and large interference, is actually not harmful. easy. ?Some relatively smart interference methods such as convolutional deception interference and motion modulation interference require not only the stable interception of radar signal characteristics, but also the accurate acquisition of target position, speed, height and other information. In other words, for radars with little difference in performance, the anti-interference ability of air platforms is inherently better than that of land-based/sea-based platforms. ??The weapons controller of another No. 21 JH-7, the one who took the photo of Wang Wei, expressed a different opinion: "But if they use cover jamming, then we will definitely be affected. But the actual situation is that our passive detection radar only found a very clean S-band, which is the long-range on several destroyers and frigates in the opponent''s fleet. The signal emitted by the warning radar..." Even after more than a month of joint training, most pilots can only say that they have a basic concept of electronic interference and cannot grasp the specific principles. Therefore, they can only look at a few things with some confusion. A quarrel between two special aircraft pilots. However, the results are very obvious. It is that they failed to argue to a final result. In terms of electronic warfare, if you really want to be an expert, I know two of them After several major combat forces were already thirsty, Commander Shen Tao suddenly proposed a compromise opinion: Why dont we ask a foreign aid to ask? Shen Taos suggestion quickly won unanimous approval from the participants, so the discussion on the disruption to sports naturally came to an end. Then the next topic comes. ?Yang Shuyu took out a photo from the briefcase he carried with him and placed it on the slide base. An unclear outline was displayed on the big screen. But everyone from the navy can still see some clues. It seems like a submarine? Thats right. ?Yang Shuyu nodded, This was taken by someone near the Bab el-Mandeb Strait, and it was determined to be a Trafalgar-class attack nuclear submarine, which is in the fleet of Wave 97. But we didnt find it the whole time. Its the end of the year, and my own project also needs year-end settlement and progress reports, so it should be difficult to update in the second half of the month... (End of this chapter) Chapter 345 You still can’t rely on outsiders for key equipment. Chapter 345: You still cant rely on outsiders for key equipment ??For the Chinese Navy in 1997, if the air defense capability required Nuwa to patch up the sky, then the anti-submarine capability was still waiting for Pangus creation Basically equivalent to non-existence. As to how bad it is specifically... In short, until the first decade of the 21st century, the propaganda of anti-submarine warfare in our military''s propaganda materials mainly focused on the excellent hearing of sonar personnel... ??The two warships Jingjiang and Rongzhou dispatched this time have neither anti-submarine helicopters nor towed sonar. Not only can they rely on hull sonar to search for submarines, but the only weapons that can attack submarines are rocket depth bombs... ?In the entire South China Sea Fleet, only the "new" destroyer 166 Xiangzhou, which was commissioned six years ago, is equipped with a set of DUBV-43 towed variable depth sonar imported from France. ?However, its main function is to conduct testing and technical verification. Due to the limited performance of the sonar itself and the huge noise of the ship, the actual submarine search capability is better than nothing, so that this set of things was directly dismantled during the modification after entering the new century. Not to mention the torturous service capabilities of the 051 series ships, the 166 ship is currently in the maintenance and overhaul period after the last voyage and is simply unable to perform this mission. After hearing the news, the captains of the two surface ships didn''t look very good. ??With the protection of comrades from the naval aviation, the tops of surface ships are indeed much safer than in the past, but the threat from below has not weakened at all. They are not afraid of fighting the enemy with all their might. Its just that this invisible opponent doesnt even have a chance to fight. When they thought that their warship might even be under the surveillance of the opponent''s nuclear submarine throughout the whole process, the two of them felt their scalps go numb. The Type 601 and Type 675 sonar equipped on our ship, even in the previous test state, the detection distance for Type 033 submarines is only 6km Although the reality was very cruel, He Hu, the captain of the Jingjiang, could only bite the bullet and report the situation at that time. "Furthermore, because the Type 22 frigate sent by the other party to confront us is very fast and the speed change is very flexible and agile, in order to ensure that the ship can speed up quickly, our ship has to keep the boiler at a high power level, causing the ship to make noise Its too big. In fact, it doesnt have the conditions to turn on the sonar equipment At the end of the sentence, his voice became much softer. Because no matter how you sound, it sounds like you are shirking responsibility. But this is the reality. This is true for steam turbine ships, not to mention the Rongzhou using a diesel engine. The noise and vibration of an internal combustion engine traveling at high speed will only become more terrifying. The leader sitting on the stage naturally saw He Hu''s concerns. Comrade He Hu, dont have any psychological burden. We are all materialists. The objective situation is the objective situation. Speak out boldly. "Report, I spent some time on the North Sea Fleet''s destroyer Ice City last year. I think that if we really want to strengthen our anti-submarine capabilities, we must first consider adding a gas turbine in terms of power, so that we can search for submarines at medium and high speeds. capabilities, and the other is aviation anti-submarine capabilities. The search capability of an anti-submarine helicopter is at least equivalent to 2-3 surface ships..." He Hu was encouraged to express his thoughts. In a word, it is difficult to make a meal without rice. This high-tech battle still requires new equipment. ?Of course, with his position as a captain and a captain, these words can only be said. ??Everyone knows that the navy''s current desire to build new ships, especially new ships powered by gas turbines, is not a matter of military spending at all, but that after the supply of the LM2500 gas turbine was cut off, it could not even find a reliable power source. ??If domestic manufacturers had not urgently conquered the repair and remanufacturing technology of some wearing parts, even the No. 052 No. 2 ship would not have been built. Because it is necessary to provide spare parts for the No. 1 ship. However, for Yang Shuyu, this is not the case. Because there is currently a new frigate project that is at the final stage of program selection. Two options, one is full diesel power and build a smaller version of 052. The second is full combustion, or at least diesel-fuel alternating power, which is a completely new thing. Party B, who is responsible for the design, is unabashedly inclined to recommend the second option. The advantage is that the potential is greater and the localization rate of the power system is higher. The foreign exchange saved can even buy a batch of 27PS anti-submarine cards at a ratio of 3:1. helicopter. But it is not without risks. Even the prototype of the domestic gas turbine is still in the manufacturing stage. If the specifications fail to meet the requirements, there will be no substitutes and we will have to completely overturn it and start over. On the other hand, although the domestic production rate of the Pilstick diesel engine is average, it is something that is immediately available and has been used smoothly, and there will definitely be no mistakes. And if converted according to the exchange rate, the price is cheaper. Anyone with a discerning eye can see that at the current rate of development, the country''s foreign exchange shortage may not last for many years. When such ships are mass-built, there is a high probability that such a strict foreign exchange quota system will not be implemented. So the navy was still hesitant. ??But under today''s situation, Yang Shuyu''s heart moved a little. Generally speaking, such a decision related to the overall development of equipment is definitely not decided by one or two people, and a small person like He Hu has no way of exerting any influence. But if the balance of the game is in the middle, even the weight of a hair can sometimes be enough to change the overall situation. The other side. ?Unsurprisingly, an encrypted letter was delivered to the capital the next day. ?According to the requirement of "not reading and handling secrets in unclassified places", Chang Haonan was taken to a conference room of the Commission of Science, Technology and Industry for National Defense. "I think we can consider setting up a permanent office for you here. If you have military-related matters that are inconvenient to handle at home or school, you can come to us to work." Huai Guomo, who accompanied Chang Haonan, said in a half-joking tone. ?Now that the Ministry of Science and Technology has assigned Chang Haonan an official title as the 973 Project Expert Group, the Science and Technology and Industry Committee must express something as Chang Haonan''s "native family". ?Although Chang Haonan thinks this opinion is good, he still doesn''t feel embarrassed to ask for it. In fact, he may not be able to come to the Science and Technology Committee twice a month. It is too luxurious to have a separate office. Besides, its a bit high-profile. It doesnt suit his character. Hai Guo Mo did not force it, anyway, there are many opportunities later. He just handed the letter to Chang Haonan, and then sat on a sofa in the corner of the conference room. Let me go...this British man is indeed dishonest... After reading the entire content of the letter, Chang Haonan leaned back on his seat and muttered to himself. ?Having said that, there was no anger or solemnity on his face, but a mysterious smile. Rubbing his swollen forehead, Chang Haonan picked up the paper and pen he had prepared long ago from the conference table and began to think about the wording of the reply. What, you figured it out now? ??Huai Guomo on the other side of the room was already prepared to wait for several hours or even half a day, but in the end, he didn''t even sit down to warm his buttocks, and he seemed to have settled the matter... ?This efficiency is truly astonishing. This...of course it cant be something I just started thinking about. Since the other party asked such a question, he must know the content of the letter, so Chang Haonan directly gave an explanation: This is something I have thought about before at the Institute of Electronics 14. Chang Haonan said and began to write: Actually, they have made things complicated. In this case, it is obvious that the Harrier that the other party took off brought electronic jamming equipment, and it should be a very old type of simple noise jamming equipment. Huai Guomo was born in chemical engineering and didnt know much about electronic information technology, but these basic things were not difficult to understand, so he was stunned when he heard: Then isnt the British technology very powerful? Their previous pods were more effective than the electronic warfare aircraft we just put into service, and the Sea Harrier shouldnt have professional electronic warfare modifications, right? "That''s not the case. Although it is generally believed that noise interference power requires a lot of power and is an imprecise cover interference, as long as the precise signal carrier frequency and bandwidth characteristics of the radar can be obtained, targeted interference can still be carried out. This does not mean that The opponents technical level is higher than ours. Chang Haonan, who was writing furiously, shook his head. "For normal electronic jamming equipment, this kind of operation requires analysis after intercepting the signal, which requires very high algorithms, especially the current agile frequency radar, which is even more difficult to handle. However, the SouShui 2000MS is originally a British product. They must have a standard answer, so they can skip this most difficult step." Its equivalent to the math test steps having been written out, and they just have to calculate the answer at the end. Of course, the results will come out quickly, but it doesnt mean they have the ability to calculate the question from scratch. ?His original intention at the beginning was actually to comfort the somewhat panicked Deputy Director Huai. But after saying the second half of the sentence, the other party seemed to be even more panicked... (End of this chapter) Chapter 346 Its the Prime Minister who really didnt lie to me. Chapter 346: The Prime Minister really didnt lie to me Its no wonder that Huai Guomo had such a big reaction. ?In many of the Navys combat scenarios at the turn of the century, the role played by the 8J was almost always at the core of combat operations. Whether it was the initial low-altitude penetration of a JH-7 aircraft fleet or the subsequent large-formation assault after the Type 22 missile boats came into service, this kind of maritime surveillance aircraft is required to perform target search and relay guidance tasks. Although this method has limited effect against opponents with aircraft carriers, it is after all the only advanced tactic that the Chinese Navy can use in this era. As a result, this time, he was directly interfered by the other party! ?When it was decided to import eight SouShui 2000 radars, the country also thought that the British might do something with the equipment. ?However, at that time, everyones understanding of electronic warfare was not deep enough, and they did not have this string in their minds. The main concern was that the other party would compromise on the performance and functions of the equipment, which was the so-called "monkey version" of export. After all, we have suffered such losses when doing business with Americans in the past ten years, such as F16/J79 and the like. At the time of signing the contract and subsequent acceptance, we also took special precautions in this regard. It turns out that peoples current routines have evolved. ?The exported equipment itself has no problem, but others hold the key to countering you. Fortunately, this is just a confrontation. If it is really a conflict or even a war, it will be discovered at the end of the matter that others can easily disable one''s most critical radar even if they use equipment from twenty years ago. The consequences will be serious. ??Although there is no longer much conflict between China and the United Kingdom, especially the United Kingdom that has completed the change of leadership, it is well known that the secrets of the British are completely open to the United States... ?This is not the end yet. Huai Guomo quickly thought of something more fatal. Yun 8J was still just a transitional product in the original plan. but. Ring Project. ?That is a strategic project related to the improvement of the Air Force''s combat effectiveness in the next 15-20 years. From radar to command terminals, as well as electronic countermeasures equipment, a full set of equipment from the Great Patriotic State is used. ??The British are not reliable, so how can David be reliable? ? It is a trivial matter that the budget of more than one billion has been wasted. The key point is that the research and development progress of the early warning aircraft may be delayed for several years or even longer. Thinking of this, Huai Guomo almost broke into a cold sweat. Is there any solution to this situation, I mean, remedy? He asked solemnly. The problem with the Ring Project is that the contract on China''s side has already been signed, and the advance payment of 350 million has been paid. If the contract is terminated now, we will be the ones who breach the contract. This is another reason why Chang Haonan did not rush to stop this project before (the first reason is that this kind of strategic project cannot be stopped just because of one person) - ??Anyway, he knew that the David Council would take the initiative to breach the contract later, and China would not suffer much loss in terms of money. As long as it ensured that the domestic early warning aircraft project was promoted without delaying time, it would be fine. "There is no trick, the only way is to completely modify the hardware, at least the transmitting circuit part, which is equivalent to fundamentally changing the signal characteristics of the radar, so that it will not be predicted in advance by the other party, just like this time, even if it was originally No matter how strong the electromagnetic interference is, there will still be a delay of several seconds before the interference can be re-implemented after we switch modes. However, judging from the feedback from the crew, the opponent''s countermeasures arrive almost simultaneously. It is obvious that they know everything..." When Chang Haonan said this, the pen in his hand suddenly stopped He just realized something. Of course he knew about the Wave 97 task group, but why did an aircraft originally belonging to the North Sea Fleet Air Force encounter the British fleet in the South China Sea? Director Huai. ?Chang Haonan looked at the other side of the conference room: "Did something happen two days ago? The letter just said that a Y-8J was intercepted by a British carrier-based aircraft, but I think this kind of thing will not happen for no reason." ? ? "You don''t know?" ? ? ? Huai Guomo was confused at first when he heard this question, but after a moment, he slapped his thigh fiercely. "Blame me, blame me, forget that you are not an official staff member of our Science and Technology Commission... Because the impact of this matter is too great, the current scope of publicity is very limited... Of course Xiao Changqian and Academician Du can know, but it will not be officially disclosed Do not disclose the information to others before." Obviously, this is a big deal. ?Chang Haonan nodded to express understanding. "In fact, a few months ago, when the Hailang 97 fleet set sail, the Navy and the Air Force jointly formulated a set of response strategies. Simply put, it was to replace it with new equipment. In fact, it was the Navy after the J-8C and JH-7 The aviation force is the main force, to scare the British who come to stir up trouble." "On June 30, one of our three-aircraft formations directly broke through the air defense of the opposing fleet and flew over them. A pilot named Wang Wei even dropped it near their flagship, the aircraft carrier Excellence. Two auxiliary fuel tanks..." Huai Guomo spent about ten minutes recounting what happened that day. Chang Haonan was immediately happy: Is there such a thing? Compared to the previous interception of the MiG-25 of a triple-sonic squadron, although this time it did not bring any direct results, it was much more exciting in terms of appearance. After all, the Indians were our defeat 35 years ago, so it seems logical to attack them again now. But the British are different. ??Although the British army suffered several small losses in the face of the People''s Liberation Army, overall, as an old empire, even if it has declined now, China still feels proud after doing so all of a sudden. Especially at such an important time. ?It can be said that a century of humiliation has been wiped away. Its a pity that we cant publicize it. After being excited for a while, Chang Haonan said with regret. After all, it is better to be happy alone than to be happy together. No matter how happy you are, if only one person knows about it, you will not be happy for long. There was nothing we could do about it. Originally, at least it could be made public within the army. Even the manuscripts of commendations and publicity were written, but the next day, the other party suddenly sent us a note..." Why, are they still planning to continue causing trouble? ?Chang Haonan raised his eyebrows, a little surprised. Generally speaking, in this kind of thing, you have to accept the loss. Anyway, there will be no real losses. At most, a few relatively vulnerable people will be frightened into mental illness. This is also the ideological construction of the opponent''s army. If the work is not done well, it has nothing to do with us. On the contrary, they are here to de-escalate. Huai Guomo waved his hand: "The things here are more complicated, involving the change of their parliament, and more importantly, the scandal of the royal family... In short, the new one in the UK is the Labor Party, and they have also benefited a lot from this incident, so Very willing to do business with us and develop relationships. So although there were some interludes in the middle, judging from the results, we achieved a complete victory under a combination of circumstances, no matter on which level. ?Chang Haonans first feeling was that he was speechless. "Yes, Prime Minister" Don''t lie to me. ??This group of people are really willing to do anything to secure their positions. But for China, it is obviously a good thing. In this era, Britain still has many areas worthy of cooperation. (End of this chapter) Chapter 347 Get a heavy-duty die forging press! Chapter 347 Build a heavy-duty die forging press! It seems that it can be regarded as accomplishing multiple things with one stone. This news obviously put Chang Haonan in a good mood. This is often the case in Western countries. Only if you show corresponding strength, they will be willing to talk to you on an equal footing. If you remain polite all the time, others will easily mistake your good intentions for weakness. ?This just frightened the British once, and they rushed to improve relations. In fact, it is cheap. ?But no matter what, we still have to fight for the power we can get. ??Although the relationship between Britain and the United States is a conjugation of father and son, in the late 1990s, Daiying was still more thoughtful, and he was not the clown that he was later. Lets get it right. After all, Huai Guomo was a man who had seen many big storms. He was just shocked by something he had never thought of before, and he lost his composure a little. ??Even for a moment, I thought about rushing out of the door, directly finding Ding Gaoheng and asking to report to the boss. ?However, he quickly regained his composure in the end. Chang Haonan was still sitting calmly. It was really outrageous to act surprised in front of people of this generation. There is no rush to spend these few hours. So I sat down again and chatted with Chang Haonan about the British reaction to this matter: In fact, at the very beginning, the purpose of this operation was just to protect July 1st and prevent the other party from provoking. As for what happened later, it was actually a complete surprise to us. ?Chang Haonan has never been a big chess player, so he doesnt feel like an idol is ruined by this explanation: No matter what, opportunities are always reserved for those who are prepared. Now that we have caught up, it is ours. ?This sentence of course contains two aspects. One is the army''s precautions for this matter. Second, he assisted the aviation industry and electronics industry in developing corresponding equipment in advance. Indispensable. Actually, there are some unconfirmed rumors. Huai Guomo gently touched his chin and said in a gossipy tone: It is said that the divorce between their prince and princess two years ago has become a big deal recently. In order to divert public attention, many companies with royal background have invested in supporting the Wave 97 fleet. "Now this fleet has failed to show its face, but instead has exposed its butt. If we make the matter public, it will be tantamount to slapping the Queen across the face. That''s why this time their conservative party has almost surrendered. Chang Haonan had no way of knowing about this kind of thing in his previous life, so he just treated it as a story. ?But he remembered that it seemed that the Princess of Wales was indeed going to die soon... In about two months, she will be killed in a car accident. As to whether this car accident was an accident or not, thats all open to debate. ?Of course, this matter has nothing to do with Chang Haonan. Having worked as an engineer for most of his life in his previous life, he also lacked research on the British aristocratic system and issues related to the royal family. So just go through it in your head. Just wait and see the news then. The reply to the 9th Hainan Division was full of technical issues, so it was not long and was written quickly. As for the ring plan, Chang Haonan believed that he did not need to say anything. ?From Huai Guomo''s pale face just now, he knew that the other party had already drawn inferences from one example and realized the risks of cooperating with David to develop early warning aircraft. We are all decent people and there is no need to explain many things clearly. Xiao Chang, I heard from Lao Du that the tasks on your shoulders will be quite heavy in the second half of the year. Huai Guomo stuffed Chang Haonan''s reply into an envelope and put it into his briefcase, but had no intention of leaving. Instead, he chatted with the latter about work issues in the second half of the year: "What are your priorities? If you need help from the Science and Technology Commission, just ask us directly and we will try our best to meet your needs." Facing this important issue, Chang Haonan''s expression suddenly became solemn. He took a rough look at the situation in front of him. Priority is not a simple sequential ranking. Although almost all projects at hand are inseparable from the support of the Science and Technology Commission, for Chang Haonan, who has completely streamlined the work process, most projects only need to be advanced step by step within the existing framework, and at most, some technical support will be given at critical moments. Just help. The big job is only the turbofan 10 and the die forging press. Considering that there are two baskets, the Seiko Project and the 973 Project, some research related to the turbofan 10 that is not easy to classify can be put into it. In fact, Turbofan 10 can barely be regarded as the first engine project in the history of China Aerospace Power that is separated from the specific aircraft model to a certain extent. ?Although its status is still as a supporting project for the J-10 and J-11 projects, at least it is no longer a one-to-one complete affiliation, and it has also received independent funding and R&D teams. More importantly, since Projects 10 and 11 are generally relatively stable, there will be no chance that the engines will suffer as a result of the aircraft model being aborted. Furthermore, after the Turbofan 10 is finalized, it may even be used as an opportunity to separate the aerospace research and development into a new independent company to completely solve the structural problems of aerospace power research and development. ?But thats all for later. In short, although the Turbofan 10 project has many technical obstacles, there is nothing to change in terms of organizational structure for the time being. The biggest trouble still comes from the die forging press. This project will to some extent involve a game between the interests of some departments. ? And unlike aviation engines or aircraft, there are already clear units responsible for research and development tasks. Everything has to start from scratch. ?Thinking of this, Chang Haonan raised his head and looked at Huai Guomo opposite: In terms of priority, the first thing I should do is to cooperate with Professor Yan Yongnian from Qinghua University to develop a heavy-duty die forging press of no less than 68,000 tons based on a semi-finished product solution in the 1980s. I have talked with Academician Shen Hongshen before and learned about some problems with the original design of Qinghua University. Considering our current technical strength and the international situation, we should be fully capable of making it. There are three main issues that Mr. Shen said before, one is the body structure, the other is vibration control, and the third is hydraulic oil. ?The first two are areas where Chang Haonan is good at, and where his planned multi-physics simulation modeling software can come into play. As for the third one... ?Chang Haonan really doesnt understand chemical engineering. Of course he can learn now with the help of the system, but it may be difficult for him to find time recently. At this time, the olive branch just extended by the British is very useful. ? British Petroleum (BP) has a brand called Castrol, which is as famous as Shell and Mobil in the field of industrial oils. ?In this kind of non-core technology, it doesnt hurt to rely on borrowingism first. ?Concerning this matter, the recommendation report written by Chang Haonan a few days ago has not been finalized and submitted, so apart from him, only a few people including Du Yishan, Shen Hong and Yan Yongnian know about it. ?However, Chang Haonan did not keep it secret during the inquiring process, so Huai Guomo must have heard some rumors and did not show too much surprise. On the other hand, heavy-duty die forging presses are indeed an indispensable part of many national key projects. If it cannot be produced domestically, then the manufacturing of many core components will have to be done abroad. ?Chang Haonan''s choice is also a timely help for the Science and Technology Commission, so there is no reason why he should not try his best to help. So, what do you need us to do for you? It was added today (End of this chapter) Chapter 348 Jiangcheng Heavy Machine Tool Factory Chapter 348 Jiangcheng Heavy Machine Tool Factory To be honest, Director, you really need some help from the organization. ?At the critical moment of the key project, Chang Haonan will naturally not be polite. "Manpower and funding are all necessary conditions, so I won''t mention them additionally. In addition, the first step is to assign the research and development and production tasks of the die forging press to a company, and it must be a reliable and combat-effective company. On the one hand, it is easier for enterprises to establish projects, and on the other hand, the equipment can be put into production quickly after completion. " That is, he dared to make requests in this way. On the one hand, it is the trust of the Science and Technology Commission in him, and on the other hand, Chang Haonan is confident in his efficiency in using funds and promoting projects. ?Sure enough, Huai Guomo just nodded, then took out his notebook and pen to record it. After that, he raised his head and said: "It''s okay to be affiliated with a research institute or company, but Xiao Chang, I have to explain to you that our Science and Technology Commission does not have much technical strength for machine tool research and development, and they are all scattered under various groups. Most of them can only handle small things such as machine tool application and maintenance, and may not be too familiar with heavy equipment such as die forging presses. "Among them, only the Ordnance Industry Corporation is relatively powerful. They have a Jiangcheng Heavy Machine Tool Factory, which was one of the 156 key projects aided by the Soviet Union. Up to now, it has produced about 5,000 units of various processing equipment. In the past, it also supplied I have exported a lot from friendly countries, so I have some basic knowledge..." Chang Haonan didnt know much about the situation in Hubei Province. Before his rebirth, he vaguely remembered that Jiangzhong had a pretty good market share in shipbuilding and wind power, so he naturally had no objections: "As long as you have relevant production experience, it will be fine. As for research and development, it will definitely be led by me and my comrades from Qinghua University. After all, this die forging press is not starting from scratch. What we have to do is mainly to conquer the last few key technologies. Problems and further optimization of the overall design, the rest is engineering. But Huai Guomos expression did not become relaxed: "Xiao Chang, don''t be too optimistic. Since 1993, due to changes in the market competition mechanism, Jiang Zhong has been losing money year after year. Now, the factory''s situation is quite serious. You may want to ask the weapons industry for the specific situation. , but last year alone, they lost nearly 20 million yuan, 20 million yuan..." ifier Hearing this situation, Chang Haonan also scratched his head. The number 20 million is actually not too much to say it is too much. Especially for him who comes from the aviation industry. After all, for the Ring Project mentioned just now, the advance payment for the first aircraft alone is US$350 million. If Factory 112 builds a J-8C fighter jet, even the allocation price will be close to this amount. But for a second-tier enterprise, this number is really quite a lot. After all, according to what Lu Yuying said before, 10 research institutes and manufacturing plants, including the 611 Research Institute and the 132 Factory, have raised a total of more than 40 million yuan in funding for the development of the J-7F model. ?Jiang Zhong lost half of his money in one year, which is really not a good sign. ?In addition, as a large enterprise that has experienced prosperous times, this kind of loss is not more important in terms of money. It means that there are problems within the factory. Heavy-duty die forging press, a powerful and important tool of the country, must not make any mistakes during the production and subsequent manufacturing process. So its definitely not just a matter of just finding a factory of sufficient scale and throwing it over. ?The most direct way to prevent China''s overall planning department for machinery manufacturing from being dismantled is to prove that "machinery manufacturing is a sunset industry" is a false proposition. ??Although there are some external factors for the abolition of the Ministry of Machinery Industry and the Ministry of Metallurgical Industry, if the industrial manufacturing industry can achieve trillions of revenue every year as it was more than 20 years later, this idea will not exist at all. ?However, this hole is really too big, and even if Chang Haonan was wrong, it would be impossible to fill it in a short time. You must know that before he was reborn, in the first quarter of 1996, all state-owned industrial enterprises were in a state of net losses after their profits and losses were offset. Just improving the efficiency of a few factories and enterprises cannot reverse this trend. So he could only settle for the next best thing and prove that "high-end machinery manufacturing is not a sunset industry." Considering the limited time, this heavy-duty die forging press is basically the only turnaround point. After thinking for a moment, Chang Haonan spoke again: Director Huai, I think I need to know more about Jiang Zhongs current situation in more detail. "That''s easy to say. I''ll ask the Ordnance Industry Corporation to submit a report as soon as possible. It shouldn''t take a few days." ?This kind of request was nothing to Huai Guomo, so he agreed immediately. But Chang Haonan shook his head: No, although I can grasp some basic information about Jiang Zhong by reading the report, it is still not intuitive enough. I was wondering if I could go to Jiangcheng in person to see the specific conditions inside the factory. No investigation, no right to speak. This is a famous statement made by a great man. The most direct way to investigate is to see it with your own eyes. In fact, considering Jiang Zhongs current situation, Chang Haonan knew without asking that everyone from Jiangcheng City to Hubei Province, to the Ordnance Corporation and even the Commission of Science, Technology and Industry for National Defense had definitely been there to see it. But the goals of the leadership of these departments are too big, and every move is under the spotlight. I am afraid that as soon as the schedule is arranged, the factory will know in advance. ? In addition, people with scientific research or administrative backgrounds often lack the concept of industrial production, and the other party is well prepared, so it is even more difficult for them to understand the real situation. So after much deliberation, Chang Haonan himself was the most suitable candidate. Facing this request, Huai Guomo hesitated. Its not that he was afraid that Chang Haonan would see something. Mainly worried that he is too young and inexperienced. ? Huai Guomo himself has a technical background and understands the difference between a laboratory and a factory very well. Although Chang Haonan has spent a long time on the front line of production and scientific research in various factories, the aviation industry system is his hometown after all. He can have some relationship with Du Yishan in most of the management positions, and he also has a very strong military background. , the situation is relatively simple. Although Jiang Zhong was included under the Ordnance Industry Corporation, it was still in a transitional stage. The overall operation was still relatively independent, closer to the traditional appearance of an ordinary local state-owned enterprise. Now we are facing the impact of large-scale enterprise restructuring and layoffs. People''s mentality has changed and the situation is quite complex. ? Let alone a young man in his 20s with a technical background, even some veterans who have worked their way up from the grassroots level are relatively numb when facing this kind of situation. Prior to this, leaders at all levels have visited Jiangtong for inspection or on-site work no less than 30 times, but they still have not been able to fundamentally solve the problem. Furthermore, being fooled is a trivial matter, but being tricked is a big trouble. ?At present, within the Commission of Science, Technology and Industry for National Defense, Chang Haonan has been designated as one of the most critical personnel for the development of national defense technology, and there is absolutely no room for mistakes. About this, I need to report to Director Ding before I can make a decision. (End of this chapter) Chapter 349 We are also people who can sneak into security. Chapter 349: We are also the ones who can get into the security guard ?Chang Haonan understands the other partys concerns. But there is no better way at the moment. The matter of heavy-duty die forging presses must not be left to the Ministry of Machinery Industry. On the one hand, they are now in danger of crossing the river. ?On the other hand, after Shen Hong retired, Chang Haonan could not communicate directly with the other party''s leaders like he did in the Science and Technology Committee or the Science and Technology Committee. ?As long as the Commission of Science, Technology and Industry for National Defense takes the lead, he will be the main person in charge of the project. Compared with the marginal positions such as "consultant" and "technical director" before, Chang Haonan, who now has a serious degree, estimates that he will have to get a deputy chief engineer for the last time. Of course, the power is great, but with it, the responsibility is also great. ??If this kind of obvious problem is not figured out in advance, the hole left will have to be filled by himself in the end. Sooner or later. So Chang Haonan had to find a way to make Huai Guomo relax: Director Huai, I know that in the current environment, the situation of state-owned enterprises like Jiang Zhong should be quite complicated. So when I go this time, I will mainly focus on investigating the situation. I will not interfere too much with their production and management work on site, and I will try to avoid contact with the local forces in Jiangcheng. In any case, the die forging press is a century-old project for the manufacturing industry. If I dont go and take a look at the company responsible for the manufacturing task, I still wont feel relieved. As a reborn person, Chang Haonan knows that no matter how bad Jiang Zhongs current situation is, at least more than 20 years later, it will still exist as a wholly-owned state-owned enterprise affiliated with the Ordnance Industry Group. It means that the situation is definitely not irreversible. ?Besides, his purpose is to ensure the smooth progress of the die forging press project, not to revitalize the entire Jiangzhong. So the burden is not that heavy. Hearing Chang Haonan''s additional explanation, Huai Guomo''s frown relaxed slightly. ? What he is most worried about is that the former oversimplifies the situation and is caught off guard. It seems that this should not happen now. "How about... I go there with you?" Chang Haonan quickly shook his head: Director Huai, the reason why I want to go there by myself is because I dont have any important administrative duties now, and my goal is relatively small. If you follow me, Im afraid that as soon as our itinerary is finalized, preparations have already been made over there... Huai Guo Mo also had a wry smile on his face. Because he knows it is true. "Anyway, going to Jiangzhong is different from going to the aviation industry. This matter must be reported to Director Ding first, but I will also convey to him what you just said." In order to enhance his persuasiveness, after returning home that day, Chang Haonan finished the proposal report on the die forging press project and handed it over to the Science and Industry Committee the next day. Because there is still a lack of understanding of many places, the final relevant technology and project development plans have not been completed. So it is not a rigorous project application. However, the previous content on the necessity and feasibility of the project has been completed long ago. In short, perhaps due to Huai Guomo''s tendency, or perhaps Chang Haonan''s report played a role, the Science and Industry Committee agreed to his plan to inspect the Jiangcheng Heavy Machine Tool Factory four days later. Its just that this time, the situation is a bit special. ?After signing the relevant documents needed along the way and handing them over to Chang Haonan, Ding Gaoheng picked up the receiver on his desk and made an internal call. Hello, office, Im Ding Gaoheng. Call the people I arranged this morning to come over, yes, my office. After ending the call, he pressed the receiver and thought for a while, then raised his head and looked at Chang Haonan who had just put away his things: "Xiao Chang, although you told Lao Huai before not to make too much noise, in the final analysis, you are going there on behalf of the Science and Technology Committee, and it is impossible to let you go alone because of circumstances and reasons. That would be too unfair. Thats right. So I have arranged a few accompanying staff for you. Two are chief staff members of the General Research Office of the general office to assist you with some administrative and liaison work, and... ?Only halfway through speaking, there was a knock on the door behind Chang Haonan. Four people were standing outside the door. "come in." Ding Gaoheng introduced their identities to Chang Haonan in turn. The two people wearing only suits and shirts are the two chief clerks just mentioned. One is named Lin Baohua and the other is named Fan Wenkang. ?? Their actual role is to be Chang Haonan''s secretaries. However, after the organizational reform in the 1980s, this term is no longer used as an official title below a certain level of government agencies. Hello, Mr. Chang. On this trip, Chang Haonans official identity was the chief engineer of a key project of the Science and Technology Commission. Its not considered a lie. At most, it is equivalent to a loan in advance. The other two are worthy of being from the agency. Although the surprise in their eyes was about to pop out the moment they saw Chang Haonan when they entered the door, there was no hesitation in their movements and expressions. Hello. The latter stood up and briefly shook hands with the two of them. Chang Haonan was a little surprised as to the other two who were still wearing coats. "These two are the security personnel I specially applied for. They are responsible for accompanying you to protect Xiao Chang''s personal safety." With his current official status, it is naturally impossible to arrange regular security personnel. ??Ding Ding Gaoheng still arranged two of them in a special way, which shows that he attaches great importance to this industry and Chang Haonan himself. In fact, it is reasonable. At the end of the 1990s, the overall public security situation in society could be said to be quite unstable. Before, he went to highly closed military-industrial enterprises and research institutes. He had his own defense force, so it didn''t matter whether he was around or not. But this time is different. Hello, Mr. Chang, my name is Hong Kun. One of them, who was stout and slightly taller, stood at attention first and saluted Chang Haonan. ?Hong Kuns appearance is more in line with the image of a security guard in public perception. With his size, Chang Haonan had no doubt that if something happened, the other party would be able to carry him on his shoulders and run away. The other person is relatively thinner, has a rather delicate complexion, and looks a bit gentle. Reporting to Mr. Chang, my name is Zhu Yadan. ?This sentence actually stunned Chang Haonan for a moment. Then I realized that the reason why this person looks like a white-faced scholar is because she is actually a woman... Its just that the whole persons hairstyle, appearance and dress are all very neutral, so Chang Haonan didnt think about it from the beginning. "this" ?Chang Haonan looked at Ding Gaoheng. Its not that he has any gender discrimination, its just that the configuration of four men and one woman seems inconvenient. Experience in the security department, in many cases, it would be more appropriate for a female comrade to take the lead. After all, you are not going to fight. To be honest, Chang Haonan still doesnt quite understand. But he knew that professional matters should be left to professionals, so he didn''t say much. Its just a matter of arranging an extra room when you get there, its not a big problem. After arriving in Jiangcheng, except for Comrade Hong Kuns decision on matters related to security, everything else must be subject to Comrade Chang Haonans arrangements. Do you understand? Ding Gaoheng said seriously to the four people standing next to him. "clear!" "Well, Xiao Chang, United Airlines has been arranged for you. Your flight will be early tomorrow morning. You can stay directly at the Science and Technology Commission tonight, which will save you an extra trip. As for your personal belongings, Everything will be provided for you. "good." ?Chang Haonan didnt show any pretense and agreed directly. (End of this chapter) Chapter 350 Troubled old state-owned enterprises Chapter 350 Old state-owned enterprises in trouble Even though he is ready to conduct on-site research, he still needs to understand some situations before that. Otherwise, even if he knows some production-related technologies, he will definitely be blind when he goes there. As the subject of inspection, Jiangcheng Heavy Machine Tool Factory will naturally not leave Chang Haonan and his team alone, and will definitely send someone to accompany and introduce them. But if everyone just follows the other partys lead and takes a quick look, its not a survey, but a trip. So that night, Chang Haonan, who was staying in the guest house, asked Huai Guomo for some relevant materials about Jiang Chong. To his surprise, the information sent by the reference room was only a stack of less than thirty centimeters. Is that all? ?Chang Haonan received it in his hand, looked over it over and over, and then confirmed with the two data clerks. Although it has only been around since the 1990s, it seems to be too thin for a factory with a few thousand employees. Yes, all the files you want related to production and operations from 1991 to the present are here. One of the leaders nodded and handed him a folder and a pen, indicating that he had received the materials by signing on them. Chang Haonan, who wrote down his name, wanted to ask something more, but the other two were just ordinary clerks in charge of files, so they probably couldn''t answer the question. Fortunately, this problem did not bother him for too long. The date of creation will be clearly marked on the cover of the file. Most of them occurred during the extremely intensive period from the end of 1996 to the beginning of 1997. This is true including the earliest one in 1991. Obviously, this is because Jiang Chong is in the process of transforming from a local state-owned enterprise under Jiangcheng City into a subsidiary of the Ordnance Industry System, so only part of the files have been sent to the Science and Technology Commission for preservation, and more should still be in Jiangcheng local area. As for why this is the case... ?Chang Haonan opened the first file on the top. Then, he was stunned. Holy shit, this balance sheet situation...is it serious? ?According to the situation in the files, this Jiangcheng Heavy Machine Tool Factory is a complete hot potato for the Ordnance Industry Corporation! Due to successive years of losses, the factory''s total liabilities have even reached nearly 500 million yuan, while the company''s net assets are less than one-fifth of this figure! A huge hole of more than 400 million! You must know that after 1993, in principle, companies will no longer be rescued through direct fiscal allocations. Therefore, if Jiang Chong is really completely transferred to the Ordnance Industry Corporation, then the latter will have to bear this huge debt. . Even if the arms industry has been enjoying a relatively prosperous life relying on arms exports in recent years, there is absolutely no way it can easily fill such a big hole. ?Of course, this companys net assets do not include land. ?However, the real estate industry, especially in the central region, has not yet been speculated. The value of land use rights has developed from the concept of land use rights in 1995 to now, that is, renting out houses originally belonging to enterprises to open shopping malls and restaurants. Due to the environmental characteristics of large state-owned enterprises, even if these commercial places are opened, the main consumers are enterprise employees. However, under the wave of layoffs, these people have little spending power, so even if they are included, the situation will not be much better at all. go. Because of this, the Ordnance Industry Corporation hesitated on this matter, and the ownership change was stuck. The result is that Jiang Zhongs name is already on the enterprise directory with the Science and Technology Commission, but in fact the other party has not actually been included in the management. In this chaotic era, it is not particularly outrageous. Its definitely not good news for Chang Haonan, who wants to hand over the heavy-duty die forging press to Jiang Zhong. ??When Chang Haonan closed the last file, which was from 1996, the bright moon was already hanging high outside the window. You dont really want me to save this company He rubbed his slightly swollen temples and couldn''t help but think of a certain TV series he had watched several times before he was reborn. People need to be self-aware. Chang Haonan knew that he was neither engaged in office struggles nor in business operations, so he quickly put this idea out of his mind. You can only go over there to see it. In this day and age, there is something to be said for being able to owe 500 million yuan ?Chang Haonan yawned and looked at the calendar next to him. July 6th. The day before the college entrance examination. Even though it was a little late, he thought for a moment and decided to call home. According to Chang Haonan''s own experience, it is impossible to go to bed so early the night before the college entrance examination. The person who answered the phone was indeed Chang Jiayao. ?Perhaps because of nervousness, her voice was a little different from usual. ??Although you have passed both the physical examination and the political examination, you still have to pass the key points in the cultural examination if you want to complete the admission. Judging from her previous mock exam scores, although they met the requirements, they were not particularly safe. During the phone call, Chang Jiayao told many stories about the brothers and sisters when they were young. To be honest, Chang Haonan could not remember most of the details clearly, but he still managed to chat for a while. Until Zhou Li''s voice sounded in the background, telling Chang Jiayao to rest. Even if you can''t sleep, you should lie down and don''t be too excited. Why is Jia Yao acting like an old lady today? She keeps talking to me about past things... Chang Haonan, who finally breathed a sigh of relief, complained to Zhou Li, who had just picked up the phone. It is not easy to recall things that happened more than forty years ago for him. The latter sighed softly: Hey... Xiaonan, do you still remember that when Jia Yao was in junior high school, she had a classmate named Lin Yanping? Uhdont remember. Just kidding, Chang Haonan can''t even remember his junior high school classmates. There is a girl who has a good relationship with Jiayao and often comes to our house to play. She is tall and very beautiful. When Zhou Li said this, Chang Haonan finally remembered something, but he couldn''t match the person with the name. It seems that I have some impression...whats wrong? He was a little worried that Zhou Li would introduce him to his girlfriend again. Its just that this time it was obvious that something had gone wrong. "Her family conditions are average. After graduating from junior high school, she did not continue schooling and went to work in our local brewery. As a result, she was laid off and lost her job last month. Because of her short working experience, she did not receive much subsidy. The girl couldn''t think about it the past two days. Just...he jumped into the river. Fortunately, a young man from your father''s workplace passed by when he was off work and rescued him..." It is indeed a tragedy. ?Chang Haonan had never heard of this matter in his previous life. ?However, similar situations are actually not uncommon in this era. It was one of the things in Zhou Li''s description that made him a little concerned. Mom, I remember that the profitability of that brewery seemed to be good, but why did it suddenly start to lay off workers? ?Chang Haonan said this because when he was on a business trip in Shengjing last year, he often saw this beer on display in stores. For a county-level brewery, it can definitely be considered a prosperous business if it can sell its products to provincial capitals. I dont know this ?Although gossip spreads quickly in a place like school, it is still relatively closed-off in nature. Whats more, as a teacher, Zhou Li doesnt care much about such things. If you really want to know, you can wait until Dad comes back from his training in the city bureau and ask him. He especially likes to drink the beer from that factory. Since his mother couldnt tell anything, Chang Haonan didnt continue to dwell on this matter: Okay, then mom, you should go to bed early. You have to accompany Jia Yao to take the exam tomorrow... (End of this chapter) Chapter 351 Investigate Jiangcheng! (4K) Chapter 351 Investigating Jiangcheng! (4K) ?Early in the morning the next day, Chang Haonan and his group of five people had breakfast in the canteen of the Committee of Science and Industry, and then took the bus to Nanyuan Airport as planned. In the late 1990s, there were basically no traffic jams after Beijing exited the Second Ring Road. However, Nanyuan was relatively remote and the road conditions were quite poor, so it still took a lot of time along the way. ?So taking advantage of this opportunity, Chang Haonan simply held a small meeting with the two chief staff members who were accompanying him. In fact, it can be seen that Ding Gaoheng put a lot of thought into the selection of his entourage. These two people are not of high rank, especially in a large organization like the Science and Technology Commission. Even after leaving their office, no one may notice that these two people are missing, which satisfies Chang Haonan''s desire to keep a low profile and A request for a surprise attack. But after all, they are still people from the ministries and commissions, and they are from the General Research Office of the General Office. In the past, they have done a lot of local research and inspections under the leadership. Although they have not taken on any important tasks, they have quite a lot of experience. If necessary, the newbie Chang Haonan can be given some experience. Lao Lin, Lao Fan. ?Chang Haonan turned around and motioned to the two people who were behind him to sit opposite him - ??The car they were riding in was a custom-made minibus. Although it looked ordinary on the outside and its mechanical quality was not very good, the interior had been modified and had a special place for face-to-face meetings and work. Two people quickly stepped forward. Mr. Chang, are you looking for us? Last night, the office director, their direct superiors, and the two directors of the System Engineering Department III and the Personnel and Education Department held a small meeting for them, repeatedly emphasizing this trip and Comrade Chang Haonan himself. importance. So even though they are almost twice as old as the latter, Lin Baohua and Fan Wenkang still dare not neglect them at all. Both of them were workers, peasants, and soldiers. They had no background in the agency, and their abilities and academic qualifications were not outstanding. If they continued to develop in this step-by-step manner, they would be retired as assistant researchers at most in their lives. Following Chang Haonan this time will largely determine whether there is room for them to continue to improve in the second half of their careers. In fact, this is one of the reasons for choosing them. Being from a rural area in the north, I have few interpersonal relationships either in Beijing or Jiangcheng, so it is relatively difficult for me to express my own position. Yes, I would like to hear about relevant work experience. ?Chang Haonan looked away from the information and looked at the two people in front of him. You must have participated in similar research trips in the past. In your opinion, what are the common problems faced by local state-owned enterprises like this? ?Lin Baohua and Fan Wenkang looked at each other. In the end, it was the former who spoke first: Mr. Chang, we used to be ordinary attachs who handled miscellaneous matters and were not responsible for summarizing the research results. As a person who is no younger than these two people, Chang Haonan naturally knows what the other person is thinking. It is just that it is currently impossible to judge which attitude he, as a team leader, towards state-owned enterprises is leaning towards, so it is difficult to speak. But it is impossible for him to really express his position first, otherwise he will only hear the exact same opinions as his own. ?So he decided to change his mind and told the story he heard from Zhou Li last night. The matter of a county brewery is obviously closer to life than an important enterprise like Jiang Zhong. It can also be considered as a way to bring the distance between the two parties closer. After finishing speaking, he added another sentence at the end: You are just not responsible for summarizing the written results, but after traveling to so many places, its impossible that you dont have any of your own ideas and judgments, right? ?Once these words were spoken, it was no longer appropriate to remain silent. What''s more, Chang Haonan has already found steps for them in front. Mr. Chang, we have never been to a large enterprise like Jiangzhong before, but we still know a lot about the situation in small local factories at the county and town levels. Fan Wenkang tactfully explained the reason why the two did not express their stance at first, and then changed the subject: "Before 1993, the production and operation of these low-level local enterprises were still based on the directive indicators issued by the superior authorities. Some of them had flexible ideas and implemented a contract management responsibility system in the form of production organization to mobilize the enthusiasm of employees. But in the final analysis, it still operates under the planned economy and closed market system of the past. "After the transition in July 1992, the business logic of the company has changed. It has to operate independently, be responsible for its own profits and losses, and directly face the pressure of market competition. Mr. Chang, you are also from a science and engineering background, and your academic qualifications are much higher than ours. You must know the impact of industrial scale. The advantage is that it is impossible for these small factories that operate independently to compete with those large enterprises or foreign companies. " After saying this, he paused for a moment and glanced at Lin Baohua next to him. The latter understood immediately and continued to add: "In addition to what Comrade Wenkang just said, there is also the fact that the internal scale of these enterprises is too bloated. You just said that you thought the closed brewery was very profitable. In fact, seeing their products in the provincial capital only means that they are selling well. , the revenue is high, but the profit after deducting costs is really not certain. Two years ago, when we went to a company in Henan Province to investigate, it was not even a county or town, but a municipal-level collective enterprise. We found that there were more than 1,900 employees in the factory, and only about 700 people were directly involved in production. There are about 200 people responsible for handling necessary administrative affairs, and the remaining more than 1,000 people are in service positions that have nothing to do with production and operation, such as police stations, government canteens, supply and marketing cooperatives, children''s schools, nurseries, etc. TV stations, hospitals and even bathhouses. "Take the police station and the hospital, for example. There is one inside and outside the enterprise, only one mile apart. But one is only in charge of the hospital and the other is only in charge of the street. It is a complete duplication of construction, such as police, doctors and nurses. The personnel are okay, and duplication is just duplication, but one more department means one more administrative team, which is an unnecessary burden for the company and society..." There is also the management aspect, there are too many people to do things After the conversation started, the two of them gradually lost their initial worries and told Chang Haonan a lot about their past work knowledge and experiences. Some things he knew before he was reborn, and some things he didnt know. In general, although we are talking about small factories with a few hundred employees, companies of Jiang Zhong''s size must also face similar difficulties because they are small but big. I just dont know to what extent they have solved the problem so far. Its the familiar Boeing 737 again, and its the familiar business class. ?Several people arrived at Jiangcheng Tianhe Airport before noon that day. According to Chang Haonan''s request, he will make a time difference. ?Tonight, Jiang Chong will receive a notice saying that someone will go over to investigate the situation tomorrow. ?So the people who are arranged to pick him up now will naturally not be their people, but the Hubei Provincial Office of National Defense Science and Industry. Two original imported Pajero V33s. This actually surprised Chang Haonan. ??Although the Science and Technology Commission is a behemoth that manages the world and the local area, at the provincial and municipal levels, the presence of local science and industry offices is actually relatively weak. The main reason is that relatively well-known large-scale military industrial enterprises such as Shengfei and Rongfei are under vertical leadership. The local science and industry office cannot directly manage them. However, those local military factories that only have numerical numbers have gone bankrupt in recent years and have been transformed. The transformation and reform have long lost the glory of the past. Not to mention ordinary people, some grassroots workers dont even know about such an organization. So its not easy for them to find two such new cars... The person in charge of the reception was Qin Xueming, the deputy director of the Organizations Publicity Department. This is determined before departure. Director Qin, right? Hello. ?Chang Haonan shook hands with the person who was trotting over. In terms of rank, in fact, the five people on the former side are lower than Qin Xueming. But on the one hand, the standard of people who come from the capital is automatically raised by half a level to one level, which is considered an unwritten custom in various places. On the other hand, although Chang Haonan does not have an administrative position, it is obviously impossible for ordinary people to bother Ding Gaoheng to personally call the office of the director of the Science and Technology Office. ??Moreover, this man won the first May Fourth Medal just two months ago, and served as the chief engineer of a certain project at the age of less than 30 years old. Director Ding did not say what project it was on the phone, nor did he say whether it was a major project or a subsidiary project. But combined with the two, at least for people within the Science and Technology Commission system, it is not difficult to see that this person has a bright future. Mr. Chang, hello, hello. ??Qin Xueming stretched out his two hands to hold Chang Haonan''s hand: "Yesterday, I heard from our Director Fu that a young talent is coming to Jiangcheng for research today. Let us prepare in advance to cooperate with your work. Come on, Mr. Chang, get in the car first." Chang Haonan and two guards were in a car. Lin Baohua, Fan Wenkang and another staff member from the local Science and Industry Office shared a car. As he spoke, Qin Xueming opened the door for Chang Haonan, and then turned around and got into the driver''s seat. Director Qin is the driver himself? Chang Haonan, who was sitting in the back, really didnt expect it. ?However, Qin Xueming, who was about to start the fire, seemed to have misunderstood, thinking that Chang Haonan thought the specifications were not formal enough. "Mr. Chang, there is nothing we can do. There are 35 people on staff in the Hubei Provincial Science and Industry Office. The director of our Organization and Propaganda Department was transferred last month and took the driver with him. Now the entire department is just our two deputy directors and There are three clerks, and I am the only one who can drive. Besides, this is also based on the requirements of the superiors, so as to narrow the scope of the informants as much as possible. " ?Chang Haonan quickly expressed his understanding and reassured the other party. The car started and slowly drove onto the main road leading to the city. Mr. Chang, its almost time for dinner. Do you want to go to our Hubei Province-style Grand Chinese Restaurant? ?Chang Haonan felt a little headache. He is not a person who is very good at rejecting others. So this kind of enthusiastic attitude was difficult for him to cope with. Its just that this head cannot be opened. On the one hand, Chang Haonan doesn''t have much confidence in his self-control. Today''s meal doesn''t matter, but if he goes all the way up, it''s hard to say whether he can refuse the sugar-coated bullets. On the other hand, the most outstanding thing about the trip to Jiangzhong is that it was a surprise attack. Even the Office of Science and Industry responsible for the reception only received the notice last night. Today is a critical stage to make up for the time difference. I must go there first. Ive already eaten on the plane, and Im not hungry yet. Lets go look around Jiang Zhong first. Fortunately, Qin Xueming didn''t bother, he just nodded and continued to concentrate on driving. ?From Tianhe Airport to No. 112 Zhongbei Road, where Jiangzhong Factory is located, you have to cross the Yangtze River in the middle. This should be considered the old town of Jiangcheng, right? Chang Haonan asked Qin Xueming as he looked at the historical buildings and the lively business atmosphere on the roadside. "That''s right, one of the three old towns. It has a history of more than a thousand years. The place where the first shot of Xinhai was fired is not far from here, about... five or six kilometers away. If Mr. Chang is interested, wait until the business is done. , I can take you to see it. The latter has just realized that this trip must be about work, so while getting closer to each other, he also emphasized that the important things should be done first. ?But of course that''s not what Chang Haonan was thinking about. Then the shops and buildings in this place are very valuable, arent they? He blurted out the question while thinking, and then he realized that the way the question was asked and the tone were a bit like the black-hearted imperial envoy in a costume TV series, so he quickly added: I mean, the business environment around the Jiangzhong factory seems to be quite good. Fortunately, Qin Xueming didnt think in that direction. After all, the land here is indeed very expensive. Even if he packed up the Hubei Provincial Science and Technology Office and sold it, he couldnt afford it: "Of course, this is the west side of East Lake, the central city, Jiangcheng University, Hubei University, Qu Yuan Memorial Hall, and several large shopping malls are nearby. As for the specific price, I don''t know. The state prohibits us civil servants from doing business. " After a pause, he added: Neither my wife nor my children. A few minutes later, the Pajero turned a corner at a traffic light intersection. This is Zhongbei Road, Jiang Zhong is in front. ??Qin Xueming looked at the huge area in front of him and said. ifier ?Chang Haonan lowered the side window glass and slightly stuck his head out to take a look outside. ?As soon as he walked by, it was obvious to him that he saw many restaurants, small commodity markets, flea markets and even a medium-sized comprehensive department store on the street fronting Jiangzhong. Can we have lunch here? He looked towards Qin Xueming in front of him on the left. "At this" The latter was also stunned: Theres nothing wrong with it, its just that the environment is a bit According to popular opinion later, this place was a bit too down-to-earth. I think its pretty good, just eat whatever you want. ?Chang Haonan said it was okay. ?So the group of people parked the car a little further away, changed into casual clothes and walked back again. The hotel looks a bit rundown, but the decoration inside is pretty good. Especially a single room. Its not magnificent, but at least its not out of class. A meal for eight people cost 210 yuan. I didnt drink, Chang Haonan invited me. The main reason is that this hotel does not issue invoices, so Qin Xueming cannot reimburse... ?At this time, the latter''s salary is only a little over a thousand, so it''s not easy for someone to pay one-fifth of it for just one meal. Boss, the price of this dish is quite affordable. When paying, Chang Haonan took out three one-hundred-yuan bills and handed them to the landlady, complimenting them casually. This is absolutely sincere. When you enter this kind of private room, you must not compare it to the standards of a home-cooked restaurant. 8 people ordered 6 dishes, all of which were hard, and cost over 200 yuan. ??Even in Shengjing, I dare not think about it, let alone the capital city. The rent is low. They are all old buildings in Jiangzhong Factory, so the rent is very cheap Subsequently, Chang Haonan asked a few other people to get back to the car first, and took only two guards to walk around a few shopping malls nearby. The situation is similar. The price levels are clear, there is a lot of customer flow, and no invoices are issued. The situation here seems to be somewhat different from what he expected yesterday. Even though it is located near a factory, its customers are not just company employees. Even if it is not as good as the same type of shops in the capital, it is by no means empty. (End of this chapter) Chapter 352 The Tricks of Jiangcheng Heavy Machinery Factory (4K) Chapter 352 The Tricks of Jiangcheng Heavy Machinery Factory (4K) That night, Chang Haonan and his party stayed in a guest house arranged by the Office of Science and Industry. There is no need to open an extra room. Because both Hong Kun and Zhu Yadan said they could live in one room because they would take turns to rest at night during the mission. ?Chang Haonan''s room is at the end, so anyone who wants to go must pass through the doorways of the other two rooms. ? He ??felt that this seemed a bit too sensitive, and not getting enough rest might affect tomorrow''s tasks during the day. ?However, Hong Kun said that they have been accustomed to this way of rest after training, and the security work is not the most careful but more careful. Considering that the person in charge of safety work arranged by Ding Gaoheng is Hong Kun, Chang Haonan is not prepared to say anything more on this matter. Everyone is doing it for his own good. Fortunately, one night passed and nothing happened. The next day, Chang Haonan officially went to Jiangcheng Heavy Machine Tool Factory with a group of eight people according to the original plan. The person who led the team to welcome him was naturally Jiang Zhongs deputy factory director, named Lin Xu. This year, the management model of state-owned enterprises has been changed to the factory director responsibility system. However, Jiang Zhong''s factory director resigned two years ago due to performance issues, and the candidate for the new factory director has not been formally documented, so he is considered Jiang Zhong''s. The number one. Director Lin, hello. Hello, Mr. Chang, we only received a notification at noon yesterday that a technical expert from the capital was coming to our factory for inspection. We were short of time and we really didnt provide good hospitality. ?Lin Xu walked up and shook hands, then expressed with an embarrassed look, So the banners and slogans are, firstly, too late to prepare, and secondly, you may not know that our factorys current income and expenditure situation is not optimistic, and it is true that we do not have much spare funds. ?These words almost burned the CPU of Qin Xueming, who was following behind and was just a driver. He has been working in the system for 20 years and has never seen this kind of gameplay. In the past, when there were enterprises under the Science and Industry Office, he also went to inspect them. ?Those factory directors and secretaries, no matter how bad the company''s situation is, are eager to use their family funds to carry out face-saving projects. ???As a result, the first thing Lin Xu, the factory director, said when facing the researchers appointed by his superiors was "Our factory''s current revenue and expenditure situation is not optimistic"? Is there really such an honest person? Do you still want to get involved in the system? However, Chang Haonans reaction was very ordinary: "It doesn''t matter, I didn''t give any instructions originally, but there is a project at the Aviation Industry Port, which requires a super-heavy CNC vertical milling lathe of more than 15 meters. I heard that your factory is currently the only one in China. model, so come and take a look. In fact, on the plane to Jiangcheng yesterday, he also thought about whether he would encounter the local factory director who looked down on the technicians sent by his superiors and tried to fool him by substituting them, but he was exposed on the spot and pretended to be fake. In the end, under his guidance, he led the entire factory to turn losses into profits and take off. But after thinking about it again and again, I feel that it is unlikely. When he received the May 4th Medal before coming here, some of his deeds were made public. ?Although it is not as scary as the actual situation, it at least shows that he must have a science and engineering background. Secondly, after all, he is known as the chief engineer of a certain project. No matter how young he is, he can still intimidate people. ?Of course, if such a factory suffers long-term losses, the other party must try to trick it somewhere. But it wont be such a blunt method. ?After meeting with Lin Xu today, I found that my guess was indeed good. ?The honesty shown by the other person is shocking. Anyway, since you are here, Mr. Chang, I will always take you to visit our Jiangzhong. Although there are some difficulties at the moment, we are also trying various ways to overcome them. ??Lin Xu said as he took Chang Haonan and his group to the door of the building closest to the factory entrance: Lets start from the factory history museum of our factory. ?Chang Haonan did not interrupt the route arranged by Lin Xu. He wanted to see what the other party was planning to do. But the latter had no intention of delaying time. After fluently introducing Jiang Zhong''s history, he directly brought Chang Haonan and the others into the production area. Although Jiang Zhong''s name is "Jiangcheng Heavy Machine Tool Factory", in fact, his business scope has not been limited to manufacturing machine tools, so the related equipment is extremely complicated. If he hadn''t stayed in Factory 112 and Factory 410 for a long time, even I also studied with Zhong Shihong, the technical director of Factory 410, for a period of time. I''m afraid if I really walked in, I would be dazzled. I think Chang always has a background in research. Have you ever been to a factory in a traditional industry like ours before? While in the changing area, Lin Xu asked seemingly unintentionally. Ive never been to one of this scale. ?Chang Haonan gave an unclear answer. This is the final assembly workshop of machine tools. After putting on work clothes and safety helmets, everyone came to the first workshop. To Chang Haonan''s surprise, there was no chaotic or even dilapidated scene like he had imagined. Although from the perspective of a reborn person, the layout of this workshop still has problems such as unclear classification of raw material areas and semi-finished products areas, serious crossover of logistics lines, too long material handling distances and duplicate routes, but it is a building built in the mid-1990s. For the factory, this is not something worth criticizing. The only problem is that the number of workers working here is a bit small, causing the entire workshop to be deserted. "The super heavy-duty CNC vertical milling lathe you want to buy, the corresponding model in our factory is CKX53160-1, 16-meter level. In the past, we have manufactured two units for the electric power departments of Guangxi Province and Hunan Province. We have one on hand that was abandoned by a customer after breach of contract. If you order the semi-finished products now, they can be delivered in the first half of next year at the earliest. Director Lin, the performance of your flagship product should be quite good. With such a high technical level, why cant the factory benefit from what you just said? Well...whats the point of having a high technical level? I always have my say and dont hide the situation from the organization. Speaking of this, Lin Xu sighed helplessly: Such flagship products like these are all produced by us, by gathering together some experienced master craftsmen, engaging in production contracting, assigning responsibilities to each person, and using a manual workshop model. Otherwise, they would all be semi-finished products. Does it take more than half a year to complete? "But this whole method is to put it bluntly, it is a production war. It is okay if the output is small, but there is no way to use it on mass-produced things. In addition, now that the old masters have retreated, there are still people who usually go out to take on private work. , the new young people are impatient and unwilling to learn skills, and even this kind of precision workshop is becoming less and less efficient. " "Mr. Chang, you also have a background in science and engineering. You know that modern industry pays attention to standardized production. If we work intensively like ours, the cost of each piece of equipment is much higher than imported ones, and the quality is almost the same as others. What you bought is It is difficult to import this type of machine tool, so there is still a market for it. Others that can be bought from abroad have no one come to us at all. Now this workshop is the most used place in our factory. " Have you ever thought about improving the management level through some methods? Its a pity to let such a large factory be abandoned like this. ?Chang Haonan turned into a speaker and answered the sentence just right. Of course I have thought about it. In fact, this has been my main job in the past few years as the factory director. ??Lin Xu said as he took Chang Haonan and others outside the workshop. There was a small room here filled with various propaganda posters. "We refer to the ISO9001 quality system introduced from abroad to strengthen the optimization of the company''s quality management model. We even specially invited experts from Japan to implement a comprehensive quality management system throughout the factory, so that every employee, not just the quality inspection department, can Participate in quality management work. In addition, it has also introduced the 6sigma theory, which is currently the most popular among large international companies, to use data in customer, process management and improvement to make objective evaluations, and to use standard deviation in mathematical statistics to achieve data as the basis..." Speaking for forty minutes in a row. It can be heard that Lin Xu is definitely not memorizing things from a script. He has his own understanding of management. In many places, he directly used examples or even data from his own factory or some internationally renowned companies. You must know that this is not the era of information explosion more than 20 years later. Some middle managers do not have any real information in their minds. As long as there is a search engine, they can be PPT gods of war. ?The things Lin Xu talked about are quite valuable in this era. So, Director Lin, now that you have introduced such a complete management system, what do you think is the main reason for our factorys loss? ?This sudden question made Lin Xu show some frustration: Its nothing more than the old problems of state-owned enterprises. "No matter how good the management method is, in the final analysis, it depends on people. State-owned enterprises have complicated relationships and overstaffed people. Young people want to get by with their iron rice bowls, and old people spend three days in the factory fishing and two days drying nets. I am more active than anyone else in taking on private work, but I have a lot of administrative staff, but my efficiency is not high. I have cleared out some shops along the street for rent, but I cannot rent them at a high price due to customer flow and policy issues..." ?Chang Haonan appeared to agree on the surface, but he had already half figured it out in his heart Even if Siemens is moved here today, the management methods cannot escape from the things posted on the wall. A few years ago, when the management system of state-owned enterprises was in chaos, there would be all kinds of constraints and strife, which would lead to constraints. But now under the factory director responsibility system, the factory director himself seems to know more about management and technology than anyone else, and in the end he actually... Such a result? ?At the same time, Chang Haonan also understood why Deputy Director Lin has been able to maintain his position despite consecutive years of losses. Because judging from the latter''s performance just now, any individual who comes here will feel that the factory''s losses are crimes other than war crimes. It might be even worse if the factory manager is replaced by someone who doesnt know his stuff. In fact, judging from the data, after the former factory director left, although he did not make the factory better, he at least managed to stop the decline. As for the reason Lin Xu just mentioned... ?Those words can convince many people. Because this was the direction of public opinion at the end of the 1990s. State-owned enterprises are the original sin. No one would dispute this. But this did not convince him. Because the problems mentioned by Lin Xu are actually common problems among large-scale enterprises. ?In her previous life, Chang Jiayao did not take the road of recruiting students. After graduation, she changed jobs in several well-known large factories. Chang Haonan can say with certainty that the above situations are not lacking. So, those are certainly problems, but they are certainly not the fundamental problems. Deputy Director Lin is indeed very capable. Faced with an inspection by someone who was very likely to understand technology, he resorted to the trick of focusing on business management issues, avoiding the important and taking the light. ??If another person came here and was deceived by him in such a series, he would definitely believe it. The next question is why Jiang Zhong''s balance sheet is what it was before. The debt of 500 million yuan cannot be faked, but even if it does not include real estate, Chang Haonan has seen the equipment in these workshops so far, and it is impossible to estimate that it is only tens of millions of yuan. ?Thinking of this, he pretended to be unintentional and asked: I heard that our factory seems to be transferred to the Ordnance Industry Corporation? ?Lin Xu was stunned for a moment, then shook his head: There was such a talk at the end of last year, but after our factory submitted the balance sheet, there was no follow-up. I guess it was because we were frightened by our debt of more than 500 million yuan..." 500 million in debt? Chang Haonan pretended to be surprised: Im from an aviation background and dont know much about mechanics, but with these factories and equipment, Im afraid I can offset quite a bit of it. Is it so difficult to get rid of it? You dont know something. ?Lin Xu brought Chang Haonan to a row of equipment covered with raincloths: "Many of the equipment in the factory were imported from places like East Germany, Romania, and Czechoslovakia. After 1991, many of the manufacturers even disappeared, and maintenance and guarantees were not in place. In addition, as mentioned just now, state-owned enterprises have no employees at all. I dont know how to take good care of equipment. When I first came to take office, I didnt even look at the workshop. I spent several months making great efforts to rectify it and stopped many operations that were simply destroying the equipment. Then these scrapped equipment are just left there? Chang Haonan opened a corner of the raincloth and found that it was indeed a machine tool. Judging from the nameplate, it was an SC2000 vertical lathe produced in Romania. Theres no way. Its easy to report equipment as damaged, but the procedures for scrapping it are very troublesome. Besides, even if these things are worthless, they can still cost over 100,000 yuan when calculating assets and liabilities. Its better than nothing. ??While Lin Xu was answering, he looked at several other devices. AKODAW250G CNC floor-standing boring and milling machine produced in Czechoslovakia. ZSTZ-10H gear grinding machine from East Germany. SI50 internal cylindrical grinding machine from East Germany. ??It is true that as Lin Xu said, they are all quite old equipment. Even though machine tools have a relatively long service life, these models are really not worth the price, not to mention they are broken. Until he saw a very familiar device ?The soft abrasive polishing machine designed by Chang Haonan himself. Is this one broken too? ?He asked, pointing to the device. "Yes, I just purchased it at the end of last year. As a result, last month, there were problems with over-grinding and insufficient abrasive passing rate. The manufacturer came to inspect it many times, but it was never completely repaired, so they took the blame. Pushed to our technical staff, we are currently arguing with them. Hearing this answer, Chang Haonan didn''t know what expression he should put on for a while. He knows a lot about the equipment he built himself. ? This problem has occurred within a few months. The only possibility is that during the initialization process of the PLC program, abrasives that do not correspond to the corresponding label are used for forced calibration. It is also simple to repair. Just replace a set of nozzles and at most a set of valves. It is absolutely impossible for the repair to fail. Chang Haonan raised his head and looked around at the dozens of machine tools and equipment around him. This is the case for a workshop. In the entire factory area, there must be at least two to three hundred pieces of equipment that are classified as damaged or scrapped. He suddenly understood. (End of this chapter) Chapter 353 Keep your feet on the ground, starting from saving Jiangcheng Heavy Machinery Chapter 353: Keep your feet on the ground, starting with saving Jiangcheng Heavy Machinery! (Ten thousand a day, please give me a monthly ticket~) How can a large factory with nearly 10,000 employees reduce its total assets to less than 100 million? The answer is right in front of Chang Haonan. ??Although he can''t check other equipment one by one, he can definitely see the big from the small. ?It is probably common practice to deliberately damage originally good equipment and then turn these equipment that can be completely repaired into scrapped models. As for the next action, it is actually not difficult to guess. ?An insolvent company with huge losses is not worth much money, whether it is a debt-for-equity swap or an MBO (management buyout). ??As long as it takes a while to get the weapons industry to give up the idea of ??taking over, they can get it at a very low price. When the time comes, these "scrap" equipment can be repaired and turned into high-quality assets again. At that time, whether it is put back into production as primitive accumulation, or simply liquidated at a low price and wait to sell the land, you can still make a lot of money. This is why Lin Xu hinted at various problems in his factory when faced with a money-distributing boy who was clearly sent by his superiors to deliver orders. ??But through a very clever method, he took away all his own responsibilities. You should know that there are no relevant provisions in the Kung Fu Criminal Law. When the director of the factory was appointed, he could still be accused of poor management or sabotage of production. If he were given a set of actions to make the golden cicada escape from its shell, he would not even be held accountable afterwards. ?Thinking of this, Chang Haonan felt a little frightened. ?Such a smooth operation, coupled with the Ministry of Machinery Industry and the Ministry of Metallurgical Industry that will be disbanded next year... The damage caused is simply incalculable. At this time in his previous life, he was still a rookie squatting in the laboratory to learn how to do experiments. He had no energy or ability to pay attention to these things. Only through some fragments of information did I get a general understanding. Now, when Chang Haonan is really involved in it, for the first time after his rebirth, he feels the insignificance of being in the torrent of the times. The general environment is like this, and it cannot be changed by one person. Let alone him, Ding Gaoheng, or even larger leaders can''t do it. At the end of the 1990s, various places were even scrambling to set targets for corporate transformation. It means that at least a certain quantity must be sold every year. Failure to meet the standard will affect the assessment. ?The original intention is of course to find ways to get rid of non-performing assets and reduce the burden. ??But Im afraid no one can tell how many bad assets like Jiang Chongs have been created. After calming down, Chang Haonan realized that his past thoughts were still a bit naive. ?Hence, he was not ready to break up with Deputy Factory Director Lin right away. Struggle also requires strategy. Lets not mention that this is on someone elses territory. In the general environment of the late 1990s, if tit-for-tat started happening, something might happen. More importantly, even if we attack now, it will not have any effect except to vent our anger. ?Chang Haonan has not forgotten the fundamental purpose of his trip. That is to examine whether Jiangzhong has the ability to undertake heavy-duty die forging presses. You can do as much as you have the ability to do. The more things you can keep, the better. You must know that these equipments are already in a scrapped state on the list. If Lin Xu and others are alerted, they can completely destroy them before they are officially included in the Science and Technology Commission system. ?On the other hand, he also needs to continue to investigate to see what extent this factory has reached. ??If we just go back and let the weapons industry take over, I''m afraid we will suffer a big loss. Chang Haonan calmly put the rainproof cloth back on, then patted the dust on his hands, assuming that he was ready to call it a day. Seeing that Chang Haonan did not continue to worry about the problems with the machine tools, Lin Xu who was opposite him finally breathed a sigh of relief secretly. He only received the notice last night that some chief engineer was coming to investigate, and there was no time to make too many preparations. ?The other party has a science and engineering education background, and is also the winner of this years May 4th Medal. There is definitely no way to fool him. Fortunately, he checked the person''s background and found that he must have just graduated from a bachelor''s degree. He estimated that even if he knew some technology, he mainly had textbook knowledge and had no contact with actual production. Thats why I thought of starting from the perspective of business management and production organization as I just did. ?As expected, the young college student was stunned. But the biggest flaw is the machine tools. Even though he probably didnt know much about the other persons education background, it was impossible not to panic when Chang Haonan really opened the rainproof cloth and looked at each person one by one. After all, according to his estimation, if he could acquire this factory through management buyout and then sell it, the money he would receive in the end would be at least tens of millions. TMD, Im still better at it after all ?Lin Xu wiped the sweat on his forehead, whether it was due to the heat or nervousness, and secretly rejoiced in his heart. A scholar cannot defeat an experienced old fox like him. Director Lin, what you said at the beginning was to gather experienced workers in the factory to engage in production battles. Can you demonstrate it tomorrow? ?Chang Haonan walked back to Lin Xu and asked him: Anyway, things like super-heavy CNC end milling dont cost much. As long as it can be made, whether it is made by hand workshop or assembly line, it is acceptable to us. As for the price...its hard to say. This gives the latter a bit of a headache.????For Lin Xu, naturally he did not want to take over this business. But the other party''s request is reasonable and reasonable, so it is difficult to reject it directly. Otherwise, not only will he face pressure and doubts from the Science and Technology Committee, but also the factory will be appeased by him. Employees who think that buying out their seniority and leaving is a good way out may also have to Come up with other ideas. "I''m afraid it will be a little difficult tomorrow... The factory can''t pay wages right now, so many workers don''t come to work." Lin Xu''s mind was racing, thinking of ways to deal with the past, "As a deputy director, I don''t have much ability. I have been working hard just to prevent the situation in the factory from deteriorating further. It''s really hard for me to ask the employees to be on time. If you want to start centralized production, you have to call people back first. ??He was sure that Chang Haonan did not have a leadership position and did not know much about organizational management, so he was not afraid to say something bad about himself. ? ? If we had just been reborn more than a year ago, Chang Haonan, whose management ability was level 0 and had only managed a project team of 5 people at most, might not have been able to do anything. But now Chang Haonan has evolved a long time ago. "It doesn''t matter. If you can organize production normally, after the contract is signed, we can pay 60% of the advance payment in cash." Director Lin, if its not convenient for you to say this, I can ask the secretary to do it for you and publicize it at the Workers Family Court, which should arouse their enthusiasm. 60% of the advance payment is still in cash, which of course is not something he has the final say. In fact, there is no such thing as purchasing a vertical milling lathe. But this does not affect Chang Haonan''s nonsense. Because he was sure that the other party did not dare to let him do this, and would not really advertise that big business was coming to his door. ?Sure enough, Lin Xus face stiffened: There is no need to bother with regular work. Since you can get money, everything will be easy. I will organize the Propaganda Department to mobilize manpower tonight and give you a production demonstration tomorrow. In that case, lets settle it first. ?Chang Haonan nodded sincerely, Thats it for todays itinerary. Ill come back to take a look at the production situation early tomorrow morning. Hearing these words, Lin Xu finally relaxed completely. ??He has already made a basic picture of Chang Haonan in his mind, confident that there are 10,000 ways to reduce the yield rate and production speed so that this college student will give up the idea of ??buying equipment from here. Mr. Chang, its almost time for dinner, why dont we go have a casual meal nearby? ?No matter what he thinks in his heart, Lin Xu still does a good job on the scene As the factory director, why can''t you be more proactive when someone sends a life-saving order to the factory? It is precisely because of these details that he has been able to create an image for himself in the past few years that he "worked hard to save the factory, but fell short due to systemic problems." Going nearby? ?Chang Haonan thought of the restaurant yesterday that was ruined on the outside but golden on the inside. "Yes, we have been increasing revenue and reducing expenditure in the past two years. We have rented out some stores to the public to open stores. We will sometimes support the business. Otherwise, people will not make money and they will cancel the lease in the new year. In the end, the factory will suffer the loss. " ?Lin Xus words were very high-sounding. Isnt it said that the factorys efficiency is not good? Its not good to go out to eat and drink. ?At this time, Chang Haonan can only use his own performance level. Hey, Mr. Chang, compared to this big order you brought us, its just a light meal. The ingredients are all local specialties and it doesnt cost much. Chang Haonan didnt have to go to Qin Xuemings invitation yesterday morning. But if we continue to shirk this situation now, it will seem a bit strange. Fortunately, we went to another hotel. ??The situation is similar to the previous one. It looks ordinary from the outside, and there are tables in the lobby similar to that of a small restaurant, but the conditions of the private rooms inside are quite good. Zhu Yadan and Hong Kun did not enter the private room, but sat outside to make it easier for them to be on guard. However, Qin Xueming and three other people from the local science and industry office did not enter the hotel at all Nominally, we have to wait for the chief outside. ?The impression given to Lin Xu is that these people are not close confidants, so they cannot participate in many things. The actual situation is that Qin Xueming and the others, at the request of Chang Haonan, entered almost every store on this street yesterday and asked questions for fear of being recognized... ?This meal, for a total of 10 people and 10 dishes, was perfect. To be fair, some of the "local specialties" on the table will be enough for the shop owner to stay there for a few years after being left there for more than 20 years. ?Chang Haonan specifically asked the two guards outside to pay attention to the checkout situation. ?After the dinner was over, Zhu Yadan deliberately slowed down a little. "Mr. Chang, the total cost of the check was more than six hundred and seventy. I didn''t hear the last number clearly." ?After getting in the car, she turned around and reported to Chang Hao Nanhui in the back seat: But the store issued an invoice to them. Qin Xueming, who was holding a piece of glutinous rice chicken next to him, quickly swallowed what was in his mouth: Mr. Chang, when we asked yesterday, the boss made it clear that we would not open it. I understand, lets go back after Director Qin finishes eating. ?Chang Haonan nodded clearly. Obviously, there is a difference between strangers and familiar customers. ??If you say that these stores have nothing to do with Lin Xu, you wont even believe it. Ill probably finish this chapter tomorrow. (End of this chapter) Chapter 354 production demonstration Chapter 354 Production Demonstration ?After driving for a while, Chang Haonan signaled Qin Xueming to stop on the side of the road. Hong Kun, get off the car now and go to Jiang Zhongs family area to squat for a while to see how Deputy Factory Director Lin plans to mobilize the workers to work. In 1997, the penetration rate of wired telephones nationwide was less than 10 per 100 people. This still has to include the number used by institutions and businesses. ??In a factory like Jiang Chong''s, only a very small number of workers'' homes can install telephones, so if you really want to notify someone of something, you can only use the most traditional method. ?Either shouting through a loudspeaker or knocking on doors from door to door. But, if Xiao Zhu is the only one ?Hong Kun was obviously worried about his job as a security guard. "It doesn''t matter. You don''t have to wait there for too long. The workers have rested early. If Lin Xu really goes to the family area to mobilize, it won''t be too late. You just have to come back before midnight. This is the travel fee. You can take a taxi." ?Chang Haonan took out two pieces of money and handed them to the other party. Normally, taking a taxi in the middle of the night in this day and age would be a challenge for both drivers and passengers. ?However, there is obviously no need to worry about Hong Kuns safety. ?Before boarding the plane at Nanyuan Airport, Chang Haonan noticed that the two of them brought quite complicated procedures and handed something to the crew members for safekeeping. ??Although I didnt ask in detail, it was obvious that he was armed. Guaranteed to complete the task! Early the next morning, Chang Haonan arrived at the Jiangzhong factory about half an hour earlier than the time agreed last night. It is certain that Lin Xu will find a way to interfere with it, but this does not mean that todays production demonstration is meaningless. ??This trip for investigation was very urgent, and even the request to visit the production process was only made by Chang Haonan last night yesterday afternoon. ?In such a short period of time, it was quite difficult for Lin Xu to gather a team of people. It was impossible to have time to arrange any too detailed means, and the habits formed by people over a long period of time are not so easy to change. So we can still see a lot of things. Mr. Chang, its so early. ??When the two cars of Chang Haonan and his team stopped at the entrance of the production area, Lin Xu, neatly dressed in work clothes, was already waiting here. Obviously, he arrived earlier. Where is it? Director Lin, wasnt it earlier? ?Chang Haonan enthusiastically began to chat with the other party. "Hey, Mr. Chang doesn''t know something. For many processes in our Jiangzhong, especially the thermal processing process, the production cannot be completely stopped, otherwise it will take a long time to restart, so the speed will always be low. Produce some products with high versatility. ?While Lin Xu was promoting production-related common sense to Chang Haonan, he motioned for the latter to follow him: "But since what you want, Mr. Chang, is heavy machine tool equipment, today''s production demonstration must not fool you with bulk goods. You have to switch to some difficult products. This process will take almost half a day. I can''t let you do it here." It was running out, so I mobilized a group of veteran workers to start work in advance. By now, we should be able to start production soon. " Is that so? I really didnt know this before. Chang Haonan, who had already made up his mind to watch the other party''s performance, showed an expression of sudden realization. Well, then you should have told me when I made the request yesterday. If the objective conditions limit it, it is perfectly fine to postpone it even for one more day. Lin Xu, who was walking next to him, thought to himself that he should not postpone it for another day. He had a long night and many dreams, but on the surface he still looked diligent and hardworking. He shook his head and said helplessly: Sigh... The whole factory is waiting for your order to be made. Yesterday I went to the family area to inform them that a leader came to the door with business for advance payment, and many people rushed to come to work..." ?Looking at Lin Xus acting skills that could win an Oscar, Chang Haonan secretly sighed. ??If he hadn''t sent someone to squat in Jiang Zhong''s family area for several hours last night, he might have believed it. Hong Kun returned to the guest house at about 11:30 p.m. and reported to Chang Haonan that he had waited until most people turned off their lights and did not see anyone announcing anything on a large scale. I did see a few people who followed Lin Xu during the day to look for people in certain buildings, but most of them only stayed for a few minutes and then left. Only two people stayed for a particularly long time. In a three-shift factory, a production team must have at least 100 people. Even one-on-one precise door-to-door visits cannot be so fast. It would be nice if someone rushes to come. Chang Haonan nodded: This shows that workers are still motivated to produce. Its just that the efficiency was too low before and they couldnt see any money, so they naturally worked hard all day long. Lin Xus face changed slightly when he heard this, and after calming down, he quickly added: "It would be great if all orders were like yours, with 60% advance payment and cash visible to others. Unfortunately, most customers, let alone advance payment, wish they had to pay for their goods in arrears for several months. It was only given slowly and sometimes even in installments..." While talking, the group of people had already walked into the workshop located in a corner that they had not visited yesterday. This is the starting point of our production process, the casting area, and it is also one of the places that most masters need to keep an eye on. The casting area is divided into a production support room, a production management room, a melting workshop, a molding workshop, a sand core workshop, and a cleaning room. workshop" Excluding his character, Lin Xus abilities are indeed good. Twenty years later, he will definitely be a top product manager. The knowledge related to production is readily available, and it is also possible to evade important issues in places that are not easily noticed. ?Those who understand technology and management should not be too relaxed if they want to fool a quasi-expert who even knows some relevant knowledge. Chang Haonan is almost certain that after completing this set of processes today, the pass rate of the final product will be quite ugly. When everyone entered the workshop, the molten iron produced by the cupola was already stored in the power frequency furnace. Can this kind of molten iron be sent directly for casting? Another half-understood question that can be asked with a half-full bottle of water. No, some alloy materials need to be added to adjust the composition of the molten iron. ?Lin Xu shook his head and replied. ?Chang Haonan''s performance just now was completely in line with his expectations. I knew some relevant basic knowledge before coming here, but I didnt know the more detailed production process. There is nothing much to say about the high-frequency furnace. Even a newcomer who has just joined the factory can understand it as long as he follows the operation manual. Lets go and look at the later parts. As soon as he finished speaking, a man ran over from the workshop next door. There is something wrong with the core shooting machine, and we have asked the maintenance team to eliminate it. The power frequency furnace must maintain power and must not let the temperature drop! ?Lin Xus face darkened slightly. Mr. Chang can rest assured that core shooting machine failures are generally minor accidents, and the lost working time is only 30-40 minutes at most. The maintenance team arranged today is the most experienced, and it should be eliminated faster. As a visitor, Chang Haonan showed no emotion and just motioned to Lin Xu to lead the way. Lets go and have a look. In the sand core workshop, a group of obviously older workers were gathered around a piece of equipment. Whats going on? Why did it fail at the most critical time? "The little kid who was on duty a few days ago hadn''t inspected the equipment for who knows how long. One bearing got stuck. Fortunately, he discovered the problem in time and stopped the equipment. No more serious consequences occurred. All he had to do was clean it and re-oil it. " One of the people turned around and reported. ?As Lin Xu said just now, it was not a big accident. Production restarted after 25 minutes. It seems that the craftsmanship of the old masters is still trustworthy. Chang Haonan looked back at the sandblasting machine and said to Lin Xu, who was taking him to leave. "These are the backbones who have worked in the factory for more than ten or twenty years and are most affectionate to the factory. They are also in the prime of life. But... alas... it is not an option to continue like this. I can''t stand here every day. Watching them in the workshop, there are so many processes, and I cant be alone. The words were full of helplessness. It seems that Director Lin was right when he said yesterday that management methods alone will not work. In the end, the problem still lies with people. After Chang Haonan said this sentence, which seemed to agree with the other party''s words, he added the second half of the sentence in his heart: Its just you, the factory director, who has the problem. ??In the 25-minute troubleshooting just now, although the operation seemed to be smooth and smooth, Chang Haonan still saw many unreasonable operations. For example, pre-repair work is not fully covered. The problem of insufficient bearing cleaning should be discovered in advance before starting work. Another example is the simple oiling at the end. The maintenance worker just hastily injects new oil into the oil can and finishes it after reaching the liquid level. However, at the 410 factory, the standard operating procedure is to completely squeeze out the old oil with new oil, so as to avoid the impact of contaminated old oil on the equipment. In addition, in this workshop, the working conditions of the belt conveyor used to transport sand are also quite poor, and its rotating mechanism and driving mechanism are almost half buried in waste sand. ??It can only be said that I was lucky that I didnt call the police today. (End of this chapter) Chapter 355 a big show Chapter 355 A big drama It was already the afternoon when the entire foundry production area stumbled through the entire production process and brought 15 finished castings to the final inspection workshop. ?This production efficiency really makes people frown when they see it. And after inspection, it was found that 6 of the 15 finished products did not meet the production requirements. With a yield rate of 60%, it is also a heavyweight. Some cases have excessive shrinkage and porosity in castings, some have excessive thermal deformation, and some simply have insufficient sand cleaning. The situation is exactly the same as what Lin Xu said yesterday. It can be made, but it depends entirely on the manual workshop model. There are indeed many problems. Even if factors that deliberately hinder production are excluded, some workers, even older workers, display poor habits. There are also some problems that Lin Xu attributes to "system rigidity", which are actually technical defects. For example, temperature condition control during the casting process. If you want to do this kind of thing based solely on human experience, it is completely foreseeable that the yield rate will be low. Furthermore, because many new equipment are classified as "end-of-life", we have to temporarily use old or even non-standard equipment to recharge, which also greatly affects production efficiency. In short, Chang Haonan already has a rough idea. Beside him, Lin Xu looked at the 15 workpieces lined up in front of him. Although he had a solemn expression on his face, he was overjoyed in his heart. With this kind of performance, not only will this business not be successful, but after Chang Haonan returns to report, I am afraid that the Ordnance Industry Corporation will completely give up its attempt to take over this company. As for himself. As long as the ownership of the factory is still with Jiangcheng, he can secure his position in Diaoyutai. Actually, Chang Haonan wanted to see what kind of wonderful performance Lin Xu would have if he still insisted on placing an order under such circumstances. ?But that would be a bit too fake. Director Lin, its really not my fault, but our production level... ?Chang Haonan looked very embarrassed. "After all...it can still be made." ? Lin Xu still looked nervous on the surface, as if he was afraid of losing this big business. "And Mr. Chang, that is, I, Lao Lin, am an honest person and don''t like to play tricks. If you go to other companies and take a look, no matter how glamorous they tell you on the surface, if it is really implemented in the production process, then The performance is not as good as our factory. At this point, he paused and put on a rather sad expression: To be honest, if the factory cant be dismantled, it wont even be able to pay the bank interest. At that time, it will have to be liquidated as non-performing assets in accordance with the citys requirements... Clean it up... I remember Director Lin, you said yesterday that there is nothing going on in the weapons industry, isnt it? Already having an idea of ??how to solve the problem, he continued to cooperate with the other party''s performance. Hey...the weapons industry is still an old state-owned enterprise. In addition to its large scale, it cant be any better than us in management. They must not be sure of such a big business. ?At this point, Lin Xu finally relaxed and started talking to Chang Haonan about things that had nothing to do with production. "But if no other state-owned enterprise is willing to take over us by the end of this year, according to regulations, we can carry out transformation and reform for the whole society. If the higher authorities can allocate part of the money to subsidize us, I guess there will still be some enterprising bosses willing to take over. Give it a try. Private enterprises have relatively high vitality, and they all feel that if they get their hands on them, they can be revitalized... Chang Haonan realized that he was still too naive and lacked a comprehensive understanding of the people represented by Lin Xu. What he had been thinking before was that such a seemingly insolvent enterprise might be sold off at a price far below its actual value. ??As a result, not only did they not even think about providing any money from the beginning, they even had to make another fortune from it! ?The reason is quite good Your company is already insolvent. Even if I take it over with Zero Yuan Gou, I will still owe money to the bank. How can I be willing to do this if you dont add some benefits? Its really interconnected... Chang Haonan looked at Lin Xu who was spitting next to him and seemed to want to "persuade" himself to place an order. He had already greeted this person''s eight generations of ancestors in his heart. Director Lin, I have also seen the difficulties in your factory, but we also have relevant regulations on equipment procurement. I cannot have the final say alone. ?He interrupted the other person''s eloquence: "In this case, after I go back, I will discuss it with my superiors and see if I can give you a special deal and make the contract delivery period and price more relaxed. How about it?" Generally speaking, this kind of thing is said. Once you come out, there is basically no business to discuss. Then its best. If we can take down this equipment, we can hold on for a while longer to delay the change... Lin Xu, who had been pretending for a long time, finally showed a smile, "Then for lunch, let''s..." For Chang Haonan, he has seen everything he wants to see, and he is no longer willing to continue acting with Lin Xu: Mr. Lin entertained us very well last night. Besides, our schedule is very urgent and we have to go back in the afternoon, so lunch is not necessary. However, just when Chang Haonan and his group had just left the workshop and were about to go to the parking lot, a group of people suddenly rushed out from the side. Probably dozens. All of them are women. ? Judging from his age and appearance, he should be a factory employee. Or the employees family members. ?At this time, Zhu Yadans role comes into play. She stood up directly and blocked several people who wanted to pounce on Chang Haonan, allowing the latter to retreat under Hong Kun''s protection. ??Lin Xu, who did not receive such treatment, was instantly surrounded by the crowd. Needless to say, the purpose was written on the wooden boards in their hands. Ask for money. ?According to what Lin Xu said yesterday, Jiang Chong had already stopped paying wages a few years ago. After he took office, he reluctantly resumed paying 25% of the basic salary as a living allowance. But as the factory continued to lose money, it became increasingly difficult to make money. Factory Director, I heard about the business early this morning. Can we pay the wages owed to us this year? "Director, we are all skilled. Even if we leave the factory, we will not die of hunger. If the factory is really hopeless, then don''t drag it here, just buy out our working years, so that our family can stop thinking about it. Director of the factory Director of the factory Fortunately, the main target of these people is not Chang Haonan. Lin Xu spent nearly an hour trying to get rid of the debt collectors with the excuse that the order had not yet been signed, and the promise of another 25% living subsidy at the end of this month. Make Mr. Chang laugh. ? Lin Xu, who finally solved the crisis, readjusted his clothes a little embarrassedly. Didnt Jiang Zhong initiate the layoff process for workers? ?Chang Haonan couldn''t tell for a while whether this was self-directed or acted, or whether it was just a coincidence. It has started, and the first two batches have been completed, with a total of more than 600 people. ?Lin Xu wiped the sweat from his face and explained, But buying out seniority also costs money. Our factory has thousands of people, and according to the plan, more than half of them have to be laid off. The total compensation is tens of millions, and we definitely cant afford it on our own..." Obviously, he is further thinking of ways to lower the expected valuation of the factory. Because this means that in addition to the more than 400 million hole on the balance sheet, the factory actually has a large amount of "hidden liabilities". Anyone who wants to take over has to reconsider the financial and personnel risks. ?Chang Haonan glanced meaningfully at the leaving crowd in the distance, and shook hands with Lin Xu. Director Lin, I believe there will be a solution. The latter only thought that these words were comforting him, so he nodded: Yes, there will definitely be. (End of this chapter) Chapter 356 Comrade Xiao Chang’s management skills Chapter 356 Comrade Xiao Changs management skills Chang Haonan and his party did not have much luggage, so after leaving Jiang Zhong, they went directly to the airport without even returning to the guest house, and returned to the capital that evening. ? Early the next morning, Chang Haonan, who had written out a research report of tens of thousands of words (a typed version of course) overnight, came to the office of Ding Gaoheng of the Commission of Science, Technology and Industry for National Defense again with sleepy eyes. Xiao Chang, how was your experience in Jiangcheng this time? Ding Gaoheng, who had just started work at this time, asked while sorting out the documents that were delivered to his desk in the morning. To tell you the truth, Director Ding, they have put on a great show for me in the past three days! ?Chang Haonan said, taking out the rather thick report from his bag and handing it over. A big show? Hearing this statement, Ding Gaoheng was stunned for a moment, then put down the red and blue pencil he just picked up, took the report and started reading it. The situation over there is not optimistic? To a certain extent, it can be said to be shocking, but for our Science and Technology Commission, it may not be entirely a bad thing. Chang Haonan said as he took the kettle from the side, filled Ding Gaoheng''s thermos with water, and then poured himself another cup. The temperature of the water inside is just right. ?With a position like Ding Gaoheng''s, there will be dedicated people responsible for handling these daily chores before going to work, so Chang Haonan also took advantage of it. The former was still scanning ten lines at a time, but when it turned to the third page, its scanning began to slow down obviously. Equipment that could still be used is scrapped, lowering production efficiency, renting out high-premium land in the city center at low prices, deliberately lowering the amount of assets, and exaggerating the insolvency situation..." The expression on Ding Gaoheng''s face gradually became serious. What a good method... In this way, after a while, you can get the high-quality assets that originally belonged to the country without paying a penny..." He put down the report that he had read more than half of, and leaned back on the back of his seat: I have heard fragmentary statements from the Ministry of Finance in the past, but this is the first time I have seen such a complete and systematic report on the situation. ? As the head of the Commission of Science, Technology and Industry for National Defense with a technical background, Ding Gaoheng is far less sensitive to this type of issues than veterans who have spent their entire careers working in agencies. ?Of course, the more important thing is that one should not seek political advice if one is not in his position. ?Although the Science, Technology and Industry Committee also manages some companies, it is actually only the leader at the business level, and there are only five companies in total at the moment. Aviation Industry Corporation, Shipbuilding Industry Corporation, Ordnance Industry Corporation, Nuclear Industry Corporation and Aerospace Industry Corporation. ?Just from the name, you know that it is impossible to face the problem of overall ownership change. During the self-reliance stage of the military industry system for more than ten years, some factories did do a good job in converting the military into civilians. Now due to policy reasons, it is necessary to carry out the restructuring of factories into enterprises. However, the nature of the enterprise has not changed. So there is really no need for Ding Gaoheng to put too much energy into things that have nothing to do with his main business. Actually, to say it is complete, it is not very complete. Chang Haonan shook his head sincerely. "These operations are only what I can see on the surface, but Lin Xu, the factory director alone, may not be able to hide the truth easily. Moreover, I have read the files before going to Jiangcheng. The balance sheet cannot be made by one company alone." What I took out must have some financial operations in it. This is something I dont understand at all. If we want Ordnance Industry Corporation to take over Jiang Chong completely and without any further trouble, we have to do something more comprehensive. Just be prepared. You can rest assured about this. I still know some about the art of war. Hearing Chang Haonan''s clear answer, Ding Gaoheng''s expression softened slightly: "The Lin Xu you mentioned, although I don''t know why, he is still just the deputy director after all. When the time comes, let the weapons industry make a surprise attack to guard the entire factory and prevent them from further trouble. Just destroy the opportunity, anyway, the initiative is with us. " "But the bigger problem is not this, but you mentioned at the end of the report that Jiang Zhong''s own problems exist objectively. Coupled with the destructive effect caused by Lin Xu and his group in terms of material and organization, this Can the factory now take on the task of being a main engine plant for die forging presses that Qi mentioned before? " In fact, this was the original purpose of Chang Haonan''s trip to Jiangcheng. The complexity of the heavy-duty die forging press far exceeds that of Jiang Zhong, and even surpasses all similar products produced by Huaxia in the past. It cannot be completed by just one factory. ??But just like complex industrial products such as aircraft carriers or large aircraft, various subsystems need to be brought together, and then the main engine factory responsible for the overall project is finally completed. This places high demands on the latters technical, organizational and management capabilities. If Jiang Zhong can be completely transformed, then I think it is still possible. Chang Haonan placed the half-drunk cup on the coffee table. After calming down, he began to talk about what he had thought about in the past few days: "At the organizational and technical level, our military industry front still has many comrades who can uphold the revolutionary spirit of ''Three Laos and Four Stricts''. We can mobilize some people from the past who understand technology to serve as the backbone, and eliminate the bad deeds of the original factory management as soon as possible." The other impact is to screen workers, keep those with real talents, and clean out those who are just messing around, or those who are self-righteous and self-righteous. " "On the management level, Deputy Factory Director Lin is actually quite capable. The management methods he formulated are very advanced. If they can be promoted, they should be effective very quickly. However, this person has a wrong mind and uses his abilities to his advantage. There are evil ways, so we just need to make some changes on the basis of strictly implementing the original regulations. " I have listed the most urgent items in the form of an appendix at the end of the report. If necessary, I can write them in more detail later. Hearing what he said, Ding Gaoheng immediately picked up the report again and turned to the end. Chang Haonan also followed the trend and continued: "The core thing here is, first of all, the concreteness and standardization of performance appraisal. Although Jiang Zhong also had performance-related regulations in the past, I took a look at it and found that the content was very unspecific. The execution is entirely up to the superior supervisor. People have the final say. In this case, it is much more useful to have a good relationship with the superiors than to work down-to-earth. It will produce side effects. We cannot do this. We need to quantify indicators, cross-examination, and finally add a verification process. , the assessment process and results are all archived, and the trump card of performance is truly used. "Second, in terms of equipment management, I think this should be promoted as a lesson. We need to establish a single person responsible for equipment management and a file management system. The equipment group should be separated from the engineering department. The responsibilities and powers should be clearly defined for each person. Equipment operation , repairs, and maintenance must be filed and saved. If something goes wrong and the specific person responsible cannot be found in the file, the relevant personnel of the equipment team will be responsible. Third, in terms of quality management, implement the production and maintenance system for all employees, set up morning meetings in the workshop, report personnel attendance status, review and summarize yesterdays production abnormalities, report the production plan for the day, and inform the production plan for the next day 5S management Quality control cycle model Workshop layout and material flow planning The summary lasted for half an hour. For people who have experienced management in the 2020s, as long as they have some work experience, they can talk about it. For those who have been trained on the front line and have upgraded their system management capabilities to It''s no problem for Chang Haonan of LV2. ?Of course, this is also thanks to Chang Jiayao in the original timeline. ??If she hadn''t worked in many large factories, became familiar with various ways of fooling the grassroots and middle-level managers, and introduced it to Chang Haonan, the latter might not have been able to take special precautions. ? Ding Gaoheng was just listening at first, but later he picked up the red and blue pencils and started taking notes in the blank space next to the report. I can only say that Chang Haonan always comes up with new tricks for him. ?It now seems that in addition to his extraordinary talents in scientific research, he also has a promising future in terms of management capabilities. ?This reminded Ding Gaoheng of his previous conversation with Wang Yuzhong at the State Economic and Trade Commission. Facing the other partys bargaining at that time, he really didnt have much confidence in his heart, so he accepted the plan of setting up a project team first, and then setting up a company to be affiliated with the Academy of Sciences after it was effective ??The key is not to wait for more than half a year, but that the company that is still unknown has not been placed under the name of the Science and Technology Commission. This made Ding Gaoheng very sad. ?Of course its no one elses fault. Painting a cake is painting a cake. He didn''t really expect the company to become bigger and stronger before. He just thought that if he could maintain and continue to operate the simulation software that Chang Haonan tinkered with, he would not lose money no matter what, so he decided on a sudden thought. Not taking it seriously. The result is that I regret it now. ??If he had known that Chang Haonan still had the ability in this area, he should have been tougher at that time. Ding Gaoheng slammed the red and blue pencils on the table and thought in his heart. (End of this chapter) Chapter 357 I, Ph.D., haven’t enrolled yet, but I already have Chapter 357 I, a Ph.D., havent enrolled in school yet, but I already have my own project team (10,000 per day, please give me monthly votes) ??The sound of the pencil hitting the table across a piece of paper is quite obvious. It just so happened that Chang Haonan had finished what he wanted to say at this time. Director Ding? He shouted tentatively, thinking that the other party was still annoyed by the operations of Lin Xu and others. Ah...nothing. Ding Gaoheng came back to his senses instantly, I just heard you talk about business management very clearly, and suddenly I remembered what you and Academician Du reported before, which was to set up a company to develop, operate and maintain software. So what do you mean...there have been results? Chang Haonan''s eyes suddenly lit up as he was picking up the cup again to drink water. ??His encounters in Jiangcheng in recent days made him feel a little depressed, but when he heard the other party suddenly talking about the software, he finally cheered up a little. This is the basis for many of his subsequent projects and plans. It is there, but... it is not completely there. When mentioning this matter, Ding Gaoheng only felt mixed emotions. "A few days ago, I went to the Economic and Trade Commission to find Director Wang Yuzhong and wanted him to approve the establishment of a new enterprise. However, he said that the current situation is not easy to operate. The only option is to consider changing the ownership of the existing enterprise. to the Academy of Sciences. Chang Haonan, who was sitting on the sofa next to him, didnt hear anything wrong for a while: Thats okay. For the time being, as long as there is a company name, I wont pick it. The key is to start work as soon as possible. Many projects and research topics I plan to do in the future will need this thing. Its not that easy. Ding Gaoheng waved his hand, "You have seen with your own eyes how many things will happen after the transformation of the enterprise, such as employee retirement, asset and debt inventory, file transfer, organizational relationship changes..." In short, even if the nature of the business remains unchanged, it will probably take until the beginning of next year to spin off a clean enterprise. Chang Haonan couldnt sit still when he heard that it would be next year: ThisDirector Ding ?However, Ding Gaoheng raised his hand and interrupted him halfway through his words. "I know you are in a hurry, so I worked hard with the Economic and Trade Commission to come up with a compromise plan for you. They will first allocate 3 million to you and set up a project team jointly signed by your school and the Academy of Sciences. You Come and take care of things, first set up the framework of the program, and then it is best to combine it with several project applications to prove the value of this thing. " This way, after the company is officially transferred to the Academy of Sciences next year, whether you are directly in charge or serve as the technical director, the resistance from above will be much smaller. How is it, is it interesting enough? ??Of course he couldn''t say in front of Chang Haonan that he was so regretful that his intestines were green and he wished he could **** this company over. Having no choice but to play the emotional card. But the latters behavior after hearing the news was somewhat beyond Ding Gaohengs expectations: Thank you very much, Director Ding. ?Chang Haonan''s tone seems to reveal a little bit... Overjoyed. In fact, he has now accumulated as many as 1,500 scientific research points. In order to save time, he even plans to try the system''s ability to directly output results for the first time. Otherwise, if we complete the tasks one by one in a step-by-step manner as in the past, it may take next year until the program is written. Of course, the system cannot directly create a USB flash drive or hard drive containing the program. Even if it directly gives the result, it can only be poured into Chang Haonan''s mind. But this at least gave him the ability to take charge of the overall situation from the beginning. As long as there is enough manpower and computing power, tasks can be directly assigned in parallel, or even the program can be broken down into modules, with different people responsible for completing them, and finally assembled together, without having to wait until the end of a work, and then based on the results. Deploy the next item. Efficiency will be increased more than ten times. Of course high efficiency comes at a price. That means a lot of people are needed. It does not necessarily need to be of a particularly high level, but the quantity must be very large. But it is not always needed. After the first version of the software is released, the subsequent upgrades, maintenance and database improvements will not be so urgent. The result of such unique requirements is that the software development stage is more suitable to be completed by the traditional research group model. After all, we can make use of the large human (research) resources (students) within the Academy of Sciences and the school. ? And it only needs to be paid in the name of project subsidies, and does not involve the complicated organizational and contractual relationships that state-owned enterprises recruit employees. But after entering the maintenance phase, you need to switch to the enterprise mode. Because it is impossible for graduate students with extremely high mobility to meet the demand for long-term iterative updates. State-owned enterprises, especially those under the Academy of Sciences, can directly sign long-term employment contracts with professors or researchers. ??It would be better if there are graduate students who have participated in program development and want to continue working after graduation. It''s just that Chang Haonan was worried that such a complicated request would make him appear to have too many things on his plate at first, so he was too embarrassed to mention it. ?However, the compromise plan that Ding Gaoheng came up with by mistake happened to meet his requirements. Perfect! An allocation of 3 million yuan is a bit shabby for setting up a company, but for a project team that will probably not exist for more than half a year, considering that the most important supercomputing resources are already in the hands of Chang Haonan, even the electricity bill is If the school pays for it, it can be said to be quite wealthy. Director Na Ding, I wonder when this project team can be officially listed? ?Chang Haonans question is actually asking when the funds will be received, but its just a little more euphemistic. It should be soon. Ding Gaoheng glanced at the calendar on the other side of his desk: It was early June when I went to see Director Wang Yuzhong. He said he would try to get it approved within a month. If we count the days, it would be within these few days. "I was originally going to wait until the money came down before informing you, but I just happened to catch up with you today, so I didn''t wait. In addition, you can make some preparations after you go back. After all, it is a joint development project of universities and the Academy of Sciences, and even if the company becomes independent in the future After the project is released, the project team can still be retained, but the subsequent funds will have to be borne by the company, and it is impossible to let the Economic and Trade Commission always take care of it. " Great, I will report this matter to the teacher and Dean Tang when I get back! ?Chang Haonan''s face was filled with excitement. ??Beijing Airlines autumn and winter semesters only start at the end of August. In other words, he already had his own project team before enrolling for a Ph.D. And there is still a start-up capital of 3 million for half a year. In the entire Jinghang University, except for Du Yishans research group, no other teacher can have so much funding in a year. Chang Haonan only remembers seeing this kind of plot once when watching the news in later generations. It was said that a rich second generation directly invested in a research group at a well-known university that he forgot in order to get a degree. ?At the time, I thought this was probably not a story about a domineering president made up by someone. As a result, now, I am the domineering president... (End of this chapter) Chapter 358 Chief Scientist of State Key Laboratory Chapter 358 Chief Scientist of State Key Laboratory Dont worry, there is another thing. Remember to pay attention to it after you return to school. Ding Gaoheng looked at Chang Haonan, whose face was full of excitement. He raised his hand and pressed it down, indicating that he hadn''t finished speaking yet. If you are sure that this laboratory will remain in the school and will not be taken out to the company, then remember to contact the Science and Technology Commission after the funds are available in a few days. "In recent years, they have invested a lot of money in the fields of applied basic research and engineering, and have established the second batch of national key laboratories. You can apply for it. With the amount of funding you currently receive, and the hardware that your school has just updated, I think the facilities should be approved. Of course, there will definitely be related desk work, but the school can find someone to do it for them. As the director of the Science and Technology Commission, Ding Gaoheng naturally hopes to keep Chang Haonan and his abilities within his own system. But as a scientist who came out of the two-bomb and one-star project and the son-in-law of a military industry marshal, ideas are just ideas, and the pattern of doing things is not that low. More importantly, no matter what method is used, as long as Chang Haonan can be supported to make the pie of scientific research bigger, no matter how he goes around in the end, he will definitely benefit the most. Just like according to the original plan, the leadership of the Science and Technology Commission will be changed at the beginning of this year. As a result, because of a series of big news made by Chang Haonan, this matter was postponed indefinitely. As a result, a new department must be established in the People''s Liberation Army system to solve the personnel problems derived from it. ?? Minister Cao Gangchun, who is newly appointed to the General Armament Department, would joke with Ding Gaoheng every time he saw him. He also expressed many times that he wanted to meet this young man who had promoted him to a level ahead of schedule. As for the projects, funds and jurisdiction newly assigned to the Science and Technology Commission directly or indirectly due to Chang Haonan in the past year, not to mention The reason why the actual status of various departments that are nominally in parallel status is very different is because they have different powers. Therefore, since the National Science and Technology Commission now has better resources, Ding Gaoheng will not hide them. National importance ?Chang Haonans hand movements paused slightly. Okay, Director Ding, I will take care of this matter as soon as I get back. ??This year is no different than twenty years later. In addition to being more free, corporate laboratories have no advantages at all in terms of policies, so he never thought from the beginning that the laboratory would be independent in the future. ????????????????????????????????????????????????????????????????????????????????????????????????????????? ??This type of gameplay is not very popular at the moment, but it will gain policy preference in a few years, and by then you can get a lot of funds by just calling it out. Let alone a brand with full buffs like the State Key Laboratory. Not to mention anything else, when teachers who are officially registered under Guozhong are accepting graduate students, there will be 0.5-1 more places every year. And this is definitely an unexpected surprise. Actually, Chang Haonan didnt think about it in this direction at first. ??But Beijing Airlines already has a State Key Laboratory of Software Development Environment with different directions but in the same field. Although it belongs to the computer department. More importantly, his project team is not even a grassroots team so far. He is the only one and has no results. ?The only advantage is that the hardware equipment is relatively new and complete, and Chang Haonans painting skills are excellent. ??Its just a matter of exchanging a piece of cake for a piece of National Key Laboratory brand... It can be said that it has never been done before or since. ??If it really works out, Im afraid it will be a good story in the future. But considering that it was Ding Gaoheng who expressed his stance after all, and combined with the other partys contact with the Science and Technology Commission... ?Obviously its very interesting! Originally, Chang Haonans plan was to go home from the Science and Industry Committee and catch up on some sleep. But under the stimulation of such a big thing, he lost his sleepiness almost instantly. After returning to school, he went directly to Tang Lintian. No need for any small talk, just get straight to the point. Dean Tang, I have a project in hand and I want to support the school. ?This statement may seem a bit strange, but there is actually nothing wrong with it. The funding was approved by the Economic and Trade Commission, the title was given by the Science and Technology Commission, and the project was initiated by Chang Haonan himself. With only a few people and land from your school, you can get a project team that has a high probability of being rated as a national key laboratory. . ??If you go out and ask about such a good thing, the principals probably wouldn''t even dream of doing it. At first glance, the latter thought it was Chang Haonan who came to him for support, and his eyes immediately lit up. ?The thing he worries about most every day now is that at a critical moment, Chang Haonan suddenly runs away from school. Thats easy to say, you want to...wait, you want to support the school? ??Tang Lintian immediately made a tactical retreat. Although almost everyone has said this sentence, "Today I am proud of the school, and tomorrow the school will be proud of me", not many can actually do it. And Chang Haonan is definitely one of them. In fact, after getting a seat in the expert group of the 973 project, he has become an extremely important resource for the school. ??It''s just that Tang Lintian hasn''t gotten used to it yet, and secondly, this kind of resource is mainly reflected in the long-term impact in the future. At least we have to wait until next year when the subject application is concentrated. Now that Chang Haonan is talking about providing some support to the school, it must be something else. "right." ?Chang Haonan brought a chair and sat down: In a few days, the Economic and Trade Commission will approve a grant of three million for me to build a numerical simulation and data analysis laboratory. "ah?!" ??Tang Lintian is simply confused. Didnt I remember that I wanted to set up a company to run this matter? He knew that the other party wanted to develop a simulation modeling software, but because from the beginning, Chang Haonan said that this kind of software that required long-term maintenance was best operated by a company, so he didn''t pay much attention to the follow-up. Condition. ?Beijing Airlines is not a school that specializes in computer science, and it is definitely not a wise choice to compete with the Academy of Sciences for corporate ownership rights. ??Tang Lintian still knows how much he weighs. Is this... ?Chang Haonan felt that under this situation, it would be a bit embarrassing to tell the actual situation that the company cannot be established yet. So he changed his statement: "Buy one, get one free. According to the arrangements of the Economic and Trade Commission, the newly established enterprise must be under the name of the Academy of Sciences. But after all, I am a student trained by our Beijing Airlines, so I feel that I still have to fight for some resources for the school." ?Hearing these words, Tang Lintian felt moved, very moved. ?Tears filled my eyes. Then there is guilt. What a good student. I was actually worried that someone would run away. ? If nothing else, the 3 million yuan in scientific research funding would definitely belong to a large project team in Beijing Airlines. However, Chang Haonan later revealed more important content: In addition, I plan to declare this laboratory to the National Science and Technology Commission and Planning Commission as a national key laboratory jointly built with the Academy of Sciences. When the company is established in a while, it can also carry out in-depth integration of industry, academia and research. NationalNational Key Laboratory? Tang Lintian didnt notice at all that the pen in his hand had soaked a large piece of paper near the pen tip. "Xiao Chang, this application is quite troublesome, and the standards are also very high. When Professor Li Wei of the Institute of Engineering and others applied for the Software Development Environment Laboratory, several research groups worked for more than half a year to get all the information. The approval process has been completed..." Mainly because the surprise was a bit too big, Tang Lintian didn''t dare to believe it rashly. Afraid of rejoicing in vain. You should know that so far, there are only more than 130 national heavy projects nationwide, and it is expected that the second batch of construction will be completed by the end of the year, with only about 150. And what Guozhong represents is not just more financial and human support. It is also equivalent to recognizing the leadership status of this laboratory in this field at the national level. Not to mention the whole country, at least related research within a certain region will gradually be carried out around it. ??If the scientific research force is described as an army, then this laboratory is the staff responsible for command. The person who benefited the most was of course Chang Haonan himself. ??But Beijing Hang University, where the laboratory is located, can definitely benefit. I know this, but the matter of declaring national importance was suggested by Director Ding of the Science and Technology Committee ifier ??Tang Lintian raised his hand to indicate that Chang Haonan didn''t need to continue talking. In this case, not to mention 100% guarantee, it is absolutely certain. ??As long as you don''t create any trouble, the cooked duck will not be able to fly. The school will do its best to cooperate, just make your request. I need people, both those engaged in scientific research and those engaged in administration. ??Chang Haonan naturally didn''t come to Tang Lintian this time simply to do good people and good deeds. No matter how unfaithful he is, he himself can''t take care of students yet. So if you want to get enough human resources, it is best to get support from the school. The number of students at the Academy of Sciences is still smaller after all. ??And it is impossible for him to complete the paperwork required to declare national importance by himself. ??It''s natural to leave these chores to the school. These are no problem. Once the laboratory is established, whether you are a faculty member, undergraduate student or graduate student, I will give you whatever you want. Tang Lintian tore off a few pages of paper that had just become wet, and quickly wrote down Chang Haonan''s requirements and some work that needed to be done later... Xiao Chang, how do you include your name in the declaration? Laboratory director, or something else? Well, Ive talked with Director Ding before. Although I am indeed the person in charge of the laboratory, the title director is still not appropriate. Either I should just write it as project director, or R&D director or something like that. This is actually Chang Haonans own opinion. When the supercomputing center was established previously, he took on the title of acting director. However, after experiencing it, he always felt that it was a bit too official. He still prefers a more academic title. After all, I havent even graduated with a Ph.D., and I havent officially joined the job yet. Low-key. Then I have an idea. Tang Lintian, who fully understood, stopped writing: Chief Scientist, how is it? (End of this chapter) Chapter 359 I want the priority to use Dawn 2000 Chapter 359 I want the priority to use Dawn 2000 In the end, Chang Haonan''s title was decided. As for the corresponding hardware support, it is secondary. ??The entire building of the supercomputing center was originally managed by Chang Haonan. There''s still a lot of empty space inside now ??Numerical Simulation and Data Analysis Laboratory, as you can tell from the name, almost no experiments are required. ?It happens to be close to the supercomputer, which is convenient. In the next few days, Chang Haonan naturally traveled between the Academy of Sciences and Beijing Airlines to prepare for the soon-to-be-established laboratory. ?Although the desk work has been handed over to other people, he still has to do it himself for many things that require publicity or on-the-spot decisions. ?Coincidentally, the Academy of Sciences that has major cooperation with Chang Haonan happens to be the Institute of Computing Technology, which he has been in contact with before. When I came here before, Chang Haonan was just one of the countless people who applied to use supercomputing for projects. It was already a big deal for the 601 Institute to send a senior researcher to contact him. Under normal circumstances, he could just send anyone. The staff is about as good as it gets. ?But this time, Chang Haonan has been upgraded to become a partner of a major project team and the future head of a company affiliated with the institute. So the reception specifications are naturally completely different. A car from the Academy of Sciences took Chang Haonan directly from school to the Institute of Computing Technology. The person who came to receive him was also promoted to the deputy director of the institute, Li Jie. Just became an academician the year before last. Responsible for the research and development of the Dawn series supercomputers. ??The supercomputer Chang Haonan used when he first came here was the one he was responsible for developing. Hello, Academician Li. Chang Gong, you are young and promising. I have heard of your name a long time ago and have seen it on TV. This time I finally have the opportunity to meet you in person. ?Li Jie stepped forward and shook hands warmly with Chang Haonan. I remember that the regular worker probably came to our office once last year, but its a pity that I was on a business trip and couldnt catch up. ??Although it was the first time for the two people to meet, Li Jie only used two sentences to bring them closer. ?Especially, he actually dug up what happened last year. Im flattered that Academician Li can know about my first visit. ?Chang Haonan also greeted the other party politely. And he was indeed quite surprised. Although everyone who uses supercomputing will leave a record, under normal circumstances no one will look through it one by one. Well, the paper you co-published last year with Researcher Xu from our institute must have been carefully read by at least colleagues in the domestic circle. I later asked Researcher Xu specifically about your situation. ?This statement is quite reliable. It seems that Li Jie is not just improvising. ?However, before Chang Haonan could speak again, the latter changed the subject: Speaking of which, I heard from people in the Histology Department that shortly after the Chinese New Year this year, our researcher Xu was abducted by you, Chang Gong, and he hasnt come back yet? Ahem ?Chang Haonan almost couldn''t breathe, "Academician Li, you can''t say that. It was the Institute of Electronics 14 in Jinling that invited us together. It''s just that Researcher Xu still has some finishing work to do at Yan Liang, but I guess it will be done soon. Hey, Chang Gong, you dont know something. Li Jie waved his hand and said while taking Chang Haonan upstairs: "Our Researcher Xu is really good, but her character is really difficult to deal with. Almost all the researchers who have worked with her have suffered psychological trauma because they can''t keep up with her ideas. The graduate students under her She is so mentally broken that I am crying to drop out of school. You are already quite amazing for being able to cooperate with her stably. " As he spoke, he gave Chang Haonan a thumbs up. Soon, the two people who had been chatting with each other arrived at Li Jie''s office. Regarding the overall situation of the project team, we have received documents from the Science and Technology Commission and the Economic and Trade Commission. ??Li Jie poured a glass of water for Chang Haonan and himself, and then sat on the sofa opposite the latter: "Whether it is cooperation with universities or enterprises, we have very rich experience, so if you have any requirements, you can feel free to put them forward to us. As for the joint listing of laboratories, we will do our best to cooperate. Of course, the joint laboratory will not just hang two signs in one place, but will set up a laboratory on both sides of Beijing Hang University and the Institute of Computing Technology. "The time for this project is relatively tight, so I won''t try to keep it secret from you, Academician Li. What I need now are equipment and people." ?Chang Haonan put down the paper cup in his hand: I understand you are currently developing the latest Dawn 2000 supercomputer? Thats right. ? Dawn 2000 is a public project, there is nothing to hide: However, we have just solved some of the technical problems left over from the Dawn 1000A in the Liaohe Oilfield. If you really want to use the Dawn 2000, Chang Gong, Im afraid youll have to wait a few years. Time doesnt matter, I can afford to wait. Chang Haonan replied without hesitation: "Since you, Academician Li, have read the document sent above, you should know that my current project team is a frontline for the company that will be established next year. The 3 million yuan of funding is only the expense for this half year. I want to be able to do it by the end of the year." It was actually a bit difficult to spend it all before. ? Hearing the figure of 3 million for half a year, even Li Jie''s eyes widened slightly, and the hand holding the water glass trembled. You must know that the annual research funding for the entire Sugon computer development project he is responsible for is only 20 million. ?That was a hardware project. Software projects are relatively less aggressive in terms of spending money. Whats more, this is still a project team in the initial stage. It can indeed be said that he is extremely rich. So you want to I want to invest in the Sugon Group in the name of the project team, and of course in the name of the company in writing, on the condition that I get the priority to use the Sugon 2000 computer after it is completed. In addition, I hope that some capable people from your firm can join the project team and hold key positions in future companies. In fact, this is exactly the purpose of Chang Haonan''s trip. ? Li Jie just said that they have rich experience in cooperating with enterprises. This is by no means a lie. Because General Manager Liu, who dreams of computers, is now the nominal director of this computing technology research institute. Although he is not responsible for the actual work and does not care about money or people, at least his name is still there. ?Of course, it probably wont last long. ?In the original timeline, the feud between the Institute of Computing and the Dream Company continued until the turn of the century. The process was extremely complicated. In short, the final result was that the Institute of Computing Technology lost the dream company as a platform for incubation results. Many projects including the Sugon Computer Project that Li Jie was responsible for were affected, and Academician Ni Nanguang also left completely. The Dream Group. Chang Haonan''s company, as an enterprise affiliated with the Academy of Sciences, cannot directly intervene, but it can still be done to reduce some losses and provide another platform for the results of the Institute of Computing Technology to be implemented. Facing these two requirements, Li Jie thought for a moment: "Human, it''s definitely no problem. As long as you have this desire and you can afford the salary, I''ll give you whatever you want." But is this an investment In addition to being the deputy director who is actually responsible for presiding over the work of the computing institute, Li Jie is also the president and chairman of Shuguang Group. He naturally has to consider a risk issue: I dont object in principle, but Im afraid we have to wait until your company is formally established, or at least have an official seal, to discuss how to invest and how to grant the priority right of use. "no problem." ?Chang Haonan nodded. At this time in 1997, probably no one would have imagined what would happen in the next few years. It is normal for Li Jie to show hesitation. Besides, Chang Haonan was not prepared to completely convince the other party in one go. As long as the cooperative relationship between the two parties is reached, he will have a reason to take action at a critical moment. As for how many resources can be saved by then, it depends on the actual situation. ?But at the very least, it can still maintain the "skills, industry and trade" path in China''s IT field from being completely cut off. (End of this chapter) Chapter 360 Accidentally revitalized China’s supercomputing industry Chapter 360 Accidentally revitalized Chinas supercomputing industry Perhaps because Chang Haonans expression was a little tangled when he answered, Li Jie added: Changgong, dont worry too much. Considering your reputation in our Shuguang Group, I think it wont be a big problem to pass. This is just a process in accordance with the regulations. This statement made Chang Haonan somewhat interested: What is my reputation in your group? Lets put it this way, thanks to Chang Gongs actions in April this year, our group has achieved profitability three years ahead of schedule, and we dont have to worry about our performance in the next two years Talk about this matter, Li Jies face almost burst into laughter, In April ?Chang Haonan briefly recalled it. I have done many things in the first half of the year, but if I really want to be related to Shuguang Group, whose main business is IT, it should only be the influential Beijing Airlines Supercomputing Center. Whats going on with our schools supercomputing center? He confirmed tentatively. Thats right, it really helped us a lot. ?Li Jie nodded: "Originally, supercomputers haven''t received much attention, especially to be honest, the performance of the Sugon series of supercomputers is not ranked high in the world. In China, there are several related research institutes of the Academy of Sciences, and the Extreme A few state-owned enterprises are using it, and tens of millions of dollars are invested in it every year, but there is almost no output. " "It turns out that after your school started doing this for a while, it was like a switch was turned on. Now colleges and universities across the country have begun to engage in an arms race in the field of supercomputing. No matter what field or direction it is, it seems that there is no such thing in the school. , just like being embarrassed to meet people..." At the beginning of this year, when I reported to the board of directors, I even considered giving up part of my shares in exchange for new investment because of the huge losses. As a result, only a few months later, the revenue pressure suddenly subsided..." So many schools use our domestically produced Dawn series machines? Chang Haonan was delighted after hearing this. There is no way. These days, even if the United States and Japan block the top technologies and use their own second-rate products, the performance will be reduced to a dimensionality reduction. Even Beijing Airlines supercomputer was built on the basis of platform authorization from Silicon Graphics (SGI). Although it cannot be said to be completely imported, it can be regarded as quasi-domestic at best. Most schools are not that wealthy. Li Jie took a sip of water and continued to explain, "Schools with abundant funds such as Qinghua University, Yanda, Jinling, and Zhejiang Province can naturally develop higher-performance supercomputing platforms like your school, but some ordinary universities and even Its a vocational and technical school in a developed coastal area. It doesnt have such high demand or doesnt have that much money. Naturally, it would be more cost-effective to choose our Shuguang Groups server products. From the tone of the former, it can be heard that even if he only got a part of the order with a low profit margin, he was already quite satisfied. ?Not only him, Chang Haonan is also quite satisfied Such a butterfly effect has never been thought of before. ? Just now, he was thinking about how to maintain the technology, industry and trade development route of China''s IT industry with technology research and development as the core for two years without being cut off. ?As a result, it seems that Shuguang Group has become somewhat famous. ?In the original timeline, they did encounter financial difficulties as Li Jie said, and in the end, after some operations, Dream Group took away 20 million shares. Although it does not play a decisive role, it is still a bit traumatic. The current situation is much better by comparison. Of course, the idea of ??using schools as the main body to operate supercomputers was not proposed by Chang Haonan. ??However, the reason why Tang Lintian proposed such a bold and risky proposal, and it was approved at both the school and the Science and Technology Commission levels, is inseparable from Chang Haonan. It is the latter who has used his own results to prove that computational science can be applied to almost any engineering field. So Chang Haonan didnt feel any problem wearing this hat on his head. Looking at it this way, we have to cooperate in the future and shoulder the responsibility of promoting supercomputer applications. At this time, Chang Haonan had already thought of further places. "Nowadays, many ordinary colleges and universities are just following the trend. If they later find that they cannot use it, or use it poorly, it may have a negative impact on high-performance computers, and it happens that these schools are the main buyers of domestic brands. We still have to let them really taste the benefits before they will continue to support our computer business." Li Jie was stunned after what he said. As the head of Shuguang Group, he is not even as considerate as the 20-year-old Chang Haonan in front of him. ?Its no wonder that the other party was able to gain the trust of the Economic and Trade Commission and the Science and Technology Commission at such a young age. ?Li Jie looked at Chang Haonan with more attention. Actually, this cannot be blamed on the formers short-sightedness. ??At the end of the 1990s, even around the world, the situation of focusing on products over services was a common phenomenon, let alone China, which was still very backward in terms of business model. Chang Haonan was able to come up with this kind of thinking naturally because of the impact of the times more than 20 years later. This aspect has indeed been something we have been neglecting. It seems that we need to put more thought into it, Chang Gong. Li Jie said solemnly: Dont worry, I will also report this matter to the groups board of directors. There should be no resistance to investing in us. In short, the communication with the computing institute was also very smooth. ?In fact, on the way to the Computing Institute just now, Chang Haonan even thought about whether he could directly bring Academician Ni Nanguang over in advance. ??But after careful consideration, the other party has not been fired by Dream Group after all, so the maneuverability is really not very good. ?Besides, his most important task at the moment is to recruit people to develop the simulation modeling software, which cannot be regarded as the other party''s area of ??expertise. Lets wait until the business scale expands to a larger area in the future. So I didnt mention it for the time being. After finalizing all the major matters, Li Jie personally sent Chang Haonan to the door. Chang Gong, I wish us a happy cooperation. ??Although they only chatted for an entire afternoon, Chang Haonan could hear some sympathy from the other party''s tone. Its a pleasure to cooperate, and I would like to thank Academician Li for his full support to our project team. I hope we can have more in-depth exchanges in the future. After all the problems of money, personnel, staffing and equipment are solved, the only thing left is to start work. Chang Haonan is not superstitious. He doesnt care about the date of the unveiling. He just wants to find a sunny day to do it. ??As a result, I looked at the weather forecast and found that it will rain for the next week. Finally we had to set the time for this Friday afternoon. The location is naturally the main building of the supercomputing center. If it rains, let it rain. Anyway, it can be done indoors like last time. ?After arranging the ceremony''s process requirements to the administrative staff below as usual, Chang Haonan sat in his office and finally got some time to relax. Accidentally revitalized China''s supercomputing industry in advance, which is still a great sense of accomplishment for him. At this point in the late 1990s, due to ecological reasons, it may have been difficult for China to compete with its American counterparts on the desktop, regardless of hardware or software. But judging from the current situation, there is still a chance to occupy its own place in the field of commercial and industrial machines. As long as a trace of fire can be preserved, there will always be hope for continued development. After all, a single spark can start a prairie fire. (End of this chapter) Chapter 361 Ruthless NTR towards Yenching University Chapter 361 Ruthless NTR towards Yenching University Chang Haonan, who was half asleep and half awake, was finally awakened by a knock on the door. Teacher Chang? Following the knock on the door was a clear female voice. ?It took him about half a second to regain consciousness, and then looked out the door in confusion. ?Nowadays, many people call him Chang Gong, Mr. Chang, Dr. Chang and even Director Chang, but it is indeed rare to call him teacher. Two men and one woman appeared outside the door. Chang Haonan, whose brain speed had not yet fully increased, calmed down and found out the identity of the other party from his memory after a while. ??Of course it was the three Yan university students who had come to ask him for advice before. Its just that this time the three of them were dressed much more formally, less student-like when they met last time. Its you three...come in ?Chang Haonan sat up straight. Uh are we disturbing your rest It seems that their roles have not changed, and the girl named Lin Zhi is still in charge of speaking. ??But standing at the door, she seemed to be in a dilemma. ?Chang Haonan just fell asleep sitting down. At the door, one would think that he was just looking at the computer screen in a relaxed posture. It doesnt matter, its about time, otherwise you wouldnt be able to wake me up easily. ?Past experience shows that if he really falls into deep sleep, he will not hear the ordinary alarm clock or phone calls at all. One sentence resolved some of the embarrassment. Thats right, Teacher Chang, we went to Indianapolis to compete and came back. The three of them put their umbrellas outside the door and walked into the office. The atmosphere became a lot more lively. As I said last time, there is no need to call the teacher... This time is different, this time you are really our teacher. As he spoke, Lin Zhi took out an exquisite trophy and a blue-covered certificate from the schoolbag that Jian Feian was carrying behind his back, and placed them on Chang Haonan''s desk. Although the process was a bit tortuous, in short, we won the championship. The latter put down the cup in his hand and looked over. Then he was surprised to find that his name was on it. ?CHANGHaonan. The trophy is one for each member of the winning team, and the certificate is your best instructor award. Suga Feiangs speech is still so concise and to the point. Best instructorI didnt even go to the competition with you Looking at the award certificate in English in front of him, Chang Haonan felt a little embarrassed for the first time. ?However, these two things can enrich the display cabinet placed not far behind him. ?After receiving the May 4th Medal, Tang Lintian specially customized one for him to put in his office, and said that he could temporarily put the honors from his student days into it. But to be honest, Chang Haonan had not received any decent honors before his third year in college. A second-class academic scholarship is too shameful. In the end, apart from the medal, I had to put in my degree certificate and graduation certificate to top up the number. "What does this have to do with it? The ancients said that a good doctor does not have a brilliant reputation, and a good fighter does not have great achievements. You can bring out a championship team without even leaving anyone. Isn''t it more proof of its gold content?" ?Although Song Tingyu talks little, he has high emotional intelligence whenever he speaks. Lin Zhi next to him quickly added: The most difficult thing about solving a problem is finding the right direction. Although you only chatted with us for a few hours, the inspiration you gave us is the most important. For example, in this years second competition, as you said, you added Using three models outside the standard, it is said that nearly one-third of the final submitted results were unable to converge, let alone seek optimization. ?Chang Haonan remembered that he did say such a thing, but in the conscience of heaven and earth, it was really just a casual saying. Speaking of which, when you guys came here last time, I remember saying that we were going to compete soon. Why didnt the results come out until July? The reason for making it public is that the newly added test functions and model optimization take longer, and it also involves a lot of wrangling in the changes to the rules. Speaking of this matter, Lin Zhis lips curled up slightly: "But in fact, the organizers added the three new test models to allow the host Purdue University to take more advantage. Judging from the results, it did beat the top schools in the previous session. They were caught off guard, but they didnt expect us to come out halfway. So the final field test session was delayed until the end of June. They even temporarily modified the rules, but they still couldnt beat us. ?This operation made Chang Haonan amused. In more than twenty years, Americans have indeed changed little in terms of being unable to afford to lose... After all, our instructor is great... Song Tingyu inserted a rainbow fart at the right time. In short, because the face-eating was so ugly, after the end of the second competition, the complete schedule was not even disclosed, but the results were only announced on the website..." ? Linzhi continued to complain. ?Chang Haonan briefly played with the trophy carved out of glass, and then stood up as he spoke, preparing to put them into the glass cabinet behind him. Looking back, I found that the three of them were staring blankly at the mostly empty cabinet. This is the first time I have won a trophy in such a high-level competition, which is very memorable. ?Chang Haonan didn''t pay much attention and just said casually. Has Teacher Chang never participated in this kind of competition before? Jian Feian looked shocked at Chang Haonan. In his opinion, whenever someone like Chang Haonan takes part in the competition, he will definitely win an award. "Um" In fact, Chang Haonan vaguely remembers participating in a physics competition when he was in high school. Finally won a provincial third prize. In fact, it is a participation award, as long as you dont turn in a blank paper, you will get it. Teacher Chang should not need to prove himself by participating in competitions. At this juncture, it was Song Tingyu who put the words into perspective. Indeed, and you have to leave some opportunities for others. ?Chang Haonan picked up the cup with a nonchalant expression and took another sip of water. Stable as a mountain. Subsequently, the three of them excitedly told Chang Haonan about their various strange experiences during the competition on the other side of the ocean. In this era of relatively limited information, many things can indeed be called novel. At this moment, an idea flashed in Chang Haonans mind ?Perhaps the partners of my project team dont need to be limited to the research groups of this school? After all, when he met with Academician Li Jie in the morning, he also talked about promoting the application of supercomputers. Isnt this the best opportunity right now? ?Of course, specifically for Yanjing University, he may not be used for promotion. After all, almost one-third of the countrys IT tycoons are from them. But we can definitely use this as an opportunity to recruit a few YSU students to help. In any case, they are just starting out and cannot touch the real core part. Besides, software must be made public sooner or later. As for confidential issues, it will be done after the software development is completed. Perfect. Considering that this project team was brought here by Chang Haonan, Beijing Airlines will definitely not have any objections. Its just that for Yanda, it seems to mean a bit NTR... After thinking about it, Chang Haonan took advantage of a chance to speak and asked: You must have just returned to China not long ago. Have you heard that a State Key Laboratory of Numerical Simulation and Data Analysis will be inaugurated here in two days? Even if it is NTR, its properties are different. First of all, you have to make sure that others are willing. ?There was a moment of silence in the office. National priorities ? Linzhi blinked: Is italgorithmic? ??Yenjing University has many national key laboratories, but so far none of them are specifically in the computer field. Not entirely. The most important task after its establishment is to complete a strongly coupled multi-physics simulation modeling tool. The algorithm is only one of the problems that needs to be solved. From their expressions, Chang Haonan could see that they were quite interested, so he continued to explain: Although it sounds difficult, I already have a relatively systematic idea, so it doesnt matter, just follow my plan when the time comes. NoIm not afraid of difficulties Even Song Tingyu, who always speaks with high emotional intelligence, is a little stuck in his speech: Well... the three of us are just undergraduates, can we really join? ?Of course he could hear that Chang Haonan meant to invite them in his words. But it was like being hit by a lottery jackpot, I felt dizzy. ?This experience will be of great significance to them, whether they continue their studies or work in the future. "So I''m asking about your wishes. If you want to come, I can tell Academician Yang. Anyway, we have a bit of a cooperative relationship..." Of course Im willing to go. There was some trembling in the voices of the three of them. In fact, for them, the most important part of the conversation when they first met Chang Haonan was not the technical aspect. But let them really start thinking about what they want to do with their knowledge in the future. This is a perfect opportunity. Thats good, Ill contact Academician Yang when the time comes and see what her opinion is. If theres no problem, you can come and help. Of course, I will give you subsidies according to the standards of scientific research assistants. ?Chang Haonan nodded with satisfaction. ??If you are in love with me, can you still call it NTR? (End of this chapter) Chapter 362 The most powerful brain, modular parallel program development Chapter 362: The most powerful brain, modular parallel program development! After chatting some more about the project, Lin Zhi took out a beautifully decorated small box from his bag and placed it on Chang Haonan''s table. By the way, Teacher Chang, we also brought you a gift. A model racing car. ?? Indianapolis has a long history of the Indy Formula Series and a rich racing culture. ?Originally, she was going to bring up the topic when a few people went to see the Indianapolis Motor Speedway, but Chang Haonan interrupted the progress of the chat. Having no choice but to give it a bit stiffly. IndyCar? The gift packaging box is transparent, and Chang Haonan can see the contents inside without opening it. Do you even know about this game? Song Tingyus eyes lit up: Before I went to the United States this time, I had only heard of F1. Well...I also like F1 better. Chang Haonan looked at the exquisite racing model for a while: And I guess Michael Schumacher will win with Ferrari, more than one. After saying this, he noticed that the corners of Song Tingyu''s lips curled up involuntarily, obviously disapproving of it, but did not refute out of politeness. After all, the Red Circus has not won the driver''s championship in almost 20 years. F1 fans in this era are more concentrated on Williams and McLaren. ?Of course Chang Haonan just said it casually and did not continue to dwell on this issue. He placed the model next to the computer monitor: You should make preparations after you go back, and you can also listen to Academician Yangs opinion. In short, if you join my project team, you will definitely not be able to go home during the summer vacation. As a newly confirmed national key laboratory, the unveiling ceremony was naturally quite grand, even bigger than the previous time when the supercomputing center was established. ?This is not even a request from Chang Haonan, but an arrangement made by the school. ??In any case, this laboratory is built on the campus of Beijing Airlines after all, and thats a shameful thing. ?In addition, Xu Yang and Yao Mengna also rushed back from Haojing. The former will be responsible for part of the software development work, while the latter will specifically optimize the aircraft design based on actual use experience. Since Chang Haonan has accepted the title of chief scientist, the laboratory does not have a director for the time being, and only two deputy directors are responsible for assisting the work. According to regulations, the State Key Laboratory will conduct an acceptance inspection 2-4 years after its completion. As long as it is signed by the director at that time, it will be fine. Considering Chang Haonan''s growth rate, he should have graduated by then, and there will definitely be no problem in officially assuming the position of laboratory director. So theres no rush. Considering the tight time, Chang Haonan chose to organize the first meeting of the project team on the night of the unveiling ceremony. ?Originally, Chang Haonan was planning to call a work meeting directly and start assigning tasks to start work as soon as possible. But just as the meeting was about to begin, Song Jian, who was just here for a formality, suddenly arrived. Following him were Yang Fuqing, Li Jie and several other academicians who were also invited to attend the ceremony. ??This is definitely impossible to exclude. ? Director of the Science and Technology Committee is just a less important one among Song Jians many titles. In fact, he is an expert in optimal control system theory and distributed parameter control theory, an academician of the Chinese Academy of Sciences and the Academy of Engineering, a foreign academician of the Royal Swedish Academy of Engineering Sciences, the U.S. National Academy of Engineering, the Russian Academy of Sciences, the proposer and person in charge of the 973 Project and the Spark Project... ?And if nothing else happens, he should also be the next dean of the Academy of Engineering. In order to show respect for the big guys, the title was temporarily changed to a seminar. ?Of course, since it is a discussion, the content of the meeting that has been prepared cannot be changed. He plays the leading role alone, and its essence is closer to answering questions. Originally, Chang Haonan meant to let Song Jian say a few words first. But the latter waved his hand to show that he didnt need it, and spread out a notebook on the table in front of him: "We came here without warning for inspection and learning. Comrade Chang Haonan, just carry out the meeting process as usual. If you have any questions, we will ask them in the speech session later." Chang Haonan quickly understood that the other party was doing this. I''m afraid I came here with the intention of giving myself a platform. His main contacts in the past year were, after all, units under the Commission of Science, Technology and Industry for National Defense. However, the laboratory established this time involved cooperation with the Academy of Sciences and many universities belonging to different systems, and it may not be as smooth as before. With Song Jians words, the situation is completely different. So after the brief introduction, Chang Haonan didnt waste any time and got straight to the point: First of all, welcome to join the Numerical Simulation and Data Analysis Laboratory. "I believe that anyone who has done research using simulation methods knows that the current mainstream numerical simulation software in foreign countries is difficult to balance calculation efficiency and accuracy, and it is difficult to obtain results for some complex problems, especially complex problems with multi-field coupling. So our first project, and also the most important project, is to first create a handy tool for ourselves, which is a brand-new, multi-physics oriented simulation software. ?Chang Haonan turned to the next page of the PPT, which showed the workflow he had spent several days designing. For this purpose, he spent all the scientific research points provided by the system. ? Even so, it can still only provide a basic framework, which will require continuous upgrades and maintenance. It is enough to show the complexity of this project. Compared with the traditional methods in the past, we have mainly improved in the following four aspects. "First, it is a new dimensionality reduction method for nonlinear partial differential equations. I have sent the relevant theoretical content to you in writing, and I will be personally responsible for this part, so there will be no details at the meeting. Lets discuss it again. If there is anything you are interested in or dont understand, you can talk to me later. Second, it is to develop new time-frequency domain algorithms for two sets of strong coupling fields: force-thermal and electromagnetic. Third, for most problems that can be solved using traditional methods, we will not completely abandon the finite element method, but for complex problems, a new parallel finite element analysis process needs to be developed. Fourth, it is to optimize the key step in almost all numerical analysis methods, that is, the mesh generation method, especially for some complex dirty geometric problems, we must come up with corresponding solutions. In order to improve efficiency, I will divide the next three tasks into 9 modules and hand them over to different groups for synchronous and parallel development. Finally, they will be centralized and connected to me to form a complete application. As soon as this sentence came out, the entire conference room was unsurprisingly filled with exclamations. Even the mature and steady Song Jian and others raised their heads and looked at Chang Haonan on the stage in surprise. In fact, the four aspects mentioned by the latter may not sound like much, but in fact they are equivalent to overthrowing and rebuilding the traditional numerical analysis method. The difficulty is comparable to moving a mountain. ?Now he is not prepared to do it one by one in order, but wants to do it at the same time? Do you need to have all the modules connected to him? ?This not only requires strong overall control, but more importantly, the fault tolerance rate is very low. Mr. Chang, the modular development you mentioned is indeed very efficient, but if any part develops some structural problems, it will affect the whole body..." Yes, Mr. Chang, this is good for us. Isnt the pressure on you too great? After all, you have to integrate all the modules..." Everyones reaction was not beyond Chang Haonans expectations. In fact, without the help of the system, he would not dare to do such tricks. ? Lockheed Martin used this method in its previous life when developing the flight control software for the F35. ??And it was also outsourced to Indian programmers. Finally, until Chang Haonan was reborn, he had been in service for ten years, and there were still more than a hundred bugs that had not been fixed... He raised his hands and pressed them down in mid-air to signal everyone to be quiet. I can confirm that there will be no structural design problems. As long as there are no internal errors in all the modules, they will be able to run stably after being assembled together. ?Chang Haonan said in an extremely determined tone: "As for the bugs that occur during the programming process, this is inevitable, but it will not have a big impact on our project, because after you submit the project to me, if there are bugs, I can give you feedback to the specific location. , just change it when the time comes. "In addition, although each of you is only responsible for a part of the program, you must also have an understanding of the overall development ideas, so as to ensure that there are no problems in the direction when performing specific tasks. Therefore, there will be a total of three meetings of the same nature, one each. Introducing the specific content involved in the next three parts of the work, including theory and algorithms. For example, today I will talk about the most basic fourth part, which is the automatic grid generation algorithm. In general, as long as you follow my guidance and express the ideas I have conceived in the form of code, this project will definitely reach the end. ?At the end of a few words, the entire audience fell silent. ??If someone else had stood on it, he would have been bombarded long ago. but now. On the one hand, it is the support that Song Jian has just shown, and on the other hand, everyone is more or less aware of some of the chief scientists previous impressive deeds. ?Coupled with Chang Haonan''s confident but not blind feeling when he just spoke... ?An idea popped into everyones mind almost at the same time: Is it really possible? Chang Haonan looked at the participants with different expressions in front of him: Did I understand it clearly? (End of this chapter) Chapter 363 The idea you mentioned was proposed by me. Chapter 363 The idea you mentioned was proposed by me. After confirming that no one had any other questions or concerns, Chang Haonan returned to the topic of the meeting again. Since there is no problem, lets follow the reverse order on this PPT and first introduce a new parametric generation method of spatial grid structure. When he said this, the scientific research assistant next to him also pulled in a blackboard for him from outside. ?Although most of the content has been put on the PPT, considering that many of the people sitting below are just lecturers who have just joined the job, Chang Haonan felt that it was necessary to add some details in some places. "Since the current workload is basically saturated (and the scientific research points have been exhausted), we will not add graphics drawing functions to the software for the time being, and considering the difficulty of promoting the use of the software, even if it is added in the future, we will definitely retain the same The interfaces of common software on the market such as CAD, CATIA, and 3DSMax do not leave us much room for manipulation in this aspect, so we need to use boundary representation as a geometric model expression. " "In terms of topological structure, boundary representation consists of vertices, edges, rings, surfaces, shells and bodies. Vertices correspond to points in geometry, edges correspond to curves in geometry, and surfaces correspond to surfaces in geometry. The simplest CAD geometry The topology of the model is like what I am drawing on the blackboard..." Chang Haonan drew a simple rectangular diagram on the blackboard while introducing some basic principles related to geometric models. For some projects with relatively simple models, in order to continue the usage habits and ensure calculation efficiency, we will use the delaunay triangulation theory to generate triangular or tetrahedral meshes. The delaunay triangulation is the dual diagram of the Vorinoi diagram. "We assume that P={Pi}(n, i=1) is a set of non-overlapping points in a given d-dimensional Euclidean space Ed. Then for each point piP, its corresponding Vorinoi element V can be defined (Pi), V(Pi) is a region near pi that meets the following conditions..." ? V(Pi)={xEd||x-pi||||x-pj||ji} In the huge conference room, except for Chang Haonan''s voice and the occasional sound of chalk rubbing against the blackboard, there was almost no noise. Everyone below, from the young lecturer who had just joined the job to Song Jian, who was sitting in the middle of the last row, was either busy writing or thinking. Since the system has provided all the knowledge needed to build the entire software framework, Chang Haonan''s teaching method can be said to be from a high level, starting from the most basic but not simple basic theory, gradually rising to expansion, and even through Improved algorithm. At the end of the 1990s, computer-aided design was still in its infancy in China. Even the so-called cutting-edge topics are mostly focused on the application level, and few people pay attention to the underlying theory of simulation tools. ? This can be seen from the time when Chang Haonan and Yao Mengna first arrived at the 601 Institute last year, but Lin Shikuan and others did not even fully understand the art of parametric design. On the one hand, the current software tools are indeed not very easy to use. The simulation results for many practical problems are often extremely outrageous. It is often necessary to make judgments based on physical models or experience. For some experienced personnel, they may not be able to intuitively understand what is happening. superiority. On the other hand, because it has missed almost all three technological revolutions, China is indeed lagging far behind in relevant theoretical foundations, and it urgently needs to find out and fill in the gaps. In this case, even if some people think of going deeper into research, there are simply not enough objective conditions. Scientific research ultimately requires the support of the general environment. But Chang Haonans lecture was like a key, directly opening a new door to the audience sitting below. This is true both at the theoretical level and at the application level. For tetrahedral meshes, traditional regional decomposition methods mostly introduce additional constraints to the mesh generation of sub-regions. Take the classic method of using triangular meshes as sub-region interface meshes as an example. When the interface is If the angle formed by the model surface is too small, it will easily lead to the failure of the interface mesh generation and the deterioration of the sub-region mesh quality, so this problem should be avoided as much as possible..." Speaking of this, Chang Haonan picked up the cup and took a sip of water. ?At this moment, someone below raised his hand to indicate that he wanted to ask a question. Hello, Mr. Chang, I am Wei Fangchao, a researcher from the Institute of Computing Technology, Chinese Academy of Sciences. "As for the problem you just mentioned that the angle between the interface and the model surface cannot be too small, we have come across a new method in actual work, which is to convert the original triangular mesh into a pseudo-quadrilateral mesh. , that is, a quadrilateral with an infinitesimal side length. In practice, this situation can be completely avoided. What do you think of this idea? " ??When Chang Haonan heard that the other party said there was a new method, his whole body became energetic almost instantly. Taking classes is also about positive feedback. If someone is willing to interact, especially high-level interaction, it is actually a very effective incentive for those on the stage. ?However, after hearing what the other party said in detail, Chang Haonan almost choked on the water he had not yet swallowed. Even Yao Mengna, who was sitting on the side of the first row, lowered her head and covered her forehead. Judging from her shaking shoulders, she must be suppressing a smile. Ahem ?Chang Haonan calmed down a little. To be honest, Im not very good at evaluating it. Because this idea was exactly what I proposed last year After all, invisible pretense is the most deadly. The researcher who asked the question looked at Chang Haonan on the podium with his mouth half open, his face full of shock. ?The scene also erupted into a burst of laughter. In fact, this was one of the many problems that the digital design team faced when they first arrived at the 601 Institute during the parametric modeling process of the Bayan San Project design plan. Chang Haonan solved it by relying on this somewhat tricky method. question. Its just that even he didnt expect that this idea, which was only a temporary means, would be promoted through unknown channels. It has to be said that simulation methods in this era are really lacking. "Getting back to the subject, in fact, this problem should be more professionally called the parallel unconstrained tetrahedral mesh generation method. Although the pseudo-quadrilateral idea I proposed at the time can ensure the mesh quality and the success rate of mesh generation, the application object The solution threshold cannot be too large, otherwise it will easily affect the numerical stability and ultimately reduce the robustness of the method and program. "On the other hand, that method is also difficult to operate. If manual operation is used, it is quite a tedious task to convert a large number of triangles into pseudo-tetrahedral meshes. If automatic generation is used, then a pseudo-tetrahedral mesh with a side length of 0 The current generation method is very difficult to calculate and requires a huge amount of memory. The time consumed is often beyond our ability to afford. Regarding this point, if there are comrades here who are engaged in architectural design, they will be deeply aware of this. experience. When he said this, Chang Haonan noticed that many people below were nodding, obviously they had been troubled by this for a long time. I wonder if I explained it clearly? ?Chang Haonan looked again at the questioner just now. That is of course clear. The latter nodded quickly and sat back. Thanks to book friend [775544] for the 10,000 starting coins reward~ (End of this chapter) Chapter 364 A simulation modeling tool ahead of its time! Chapter 364: A simulation modeling tool that transcends the times! ?After this sudden episode, Chang Haonan turned over the blackboard next to him and continued to explain along the same route: "Because of the various problems faced by traditional methods, in our program, a parallel constrained tetrahedral mesh generation method based on Delaunay-AFT will be used to generate separation layers around the split plane, thereby decomposing the mesh coverage area. The dividing plane is only used as a guide when generating the separation layer, thereby avoiding the introduction of geometric constraints. At the same time, the efficiency of parallel grid generation is ensured through the multi-level regional decomposition strategy; the communication mechanism based on disk cache saves the use of computer memory. use" This process is mainly divided into the following steps. The first is the assessment of grid size... "The second is the introduction of the dividing plane. The dividing plane can be determined with the help of the main inertial axis with the smallest moment of inertia of the center of gravity of M. The direction vector n of this axis can be determined by the eigenvector corresponding to the smallest eigenvalue of the inertia matrix of M To determine, the calculation method is as follows..." Just the "most basic" parallel surface triangle/quadrilateral mesh generation method described by Chang Haonan, it took nearly two hours to talk about it. ?This is just the theoretical part. "During the preparation of the laboratory, I briefly verified the mesh generation method just mentioned. The test objects were common gear hob models and cylinder head models, with 348 and 2736 surfaces respectively, including There are many kinds of mesh thin surfaces that are difficult to generate using traditional methods. I put the final results here for your reference. Chang Haonan clicked the mouse and finally released the last picture of the first PPT Because he had so much to talk about, during the previous testing process, the office software, which was still in its early stages, often got stuck and had to be divided into several files to proceed. "Here, I define the unit mass Q as the ratio of the radius Ri of the inscribed sphere of a unit and the radius Rc of the circumscribed sphere. In order to change the unit mass into an integer as much as possible, the result is multiplied by three, so the final definition of Q =3*(Ri/Rc) "It can be seen that compared with the high-precision mesh generated by the traditional method, the mesh generated by the new method does not generate a garbage mesh with a quality of 0.1-0.2 even in dirty areas with extremely complex shapes, and the quality is 0.6- The total proportion of meshes between 1.0 and 1.0 is more than 91.7%, and the weighted average quality is about 0.2% lower than the former. This difference will have almost no impact in actual work. " In terms of final time consumption, although the parallel strategy adds three steps of regional decomposition, grid refinement and node merging compared to the traditional method, due to the greatly improved grid generation efficiency, the total time for the two test models is Only 750 seconds and 2100 seconds respectively, only 5.9% and 4.7% of the serial method..." ??When Chang Haonan posted the program running log and told the results, the originally silent conference room exploded almost instantly. The former specifically did not maintain order immediately. After people suddenly receive information that is far beyond their cognitive level, they always need some time to calm down their emotions. After all, that is 20 times the original efficiency. In the field of numerical computation, quantitative changes in time are themselves qualitative changes. The gear hob and the cylinder head are just two very simple models. It may not make much difference whether the mesh generation takes 20 minutes or 6 hours. But for some very large engineering projects, there is a huge difference between half a month and a year... What''s more, more careful people can already see that this new method developed by Chang Haonan works better for more complex models. That is to say, in practical applications, this advantage is likely to be more than 20 times. Li Jie, who was sitting back and taking notes calmly just now, raised his head almost subconsciously after hearing the two data that Chang Haonan said. ?He first raised his head slightly and looked at the curtain hanging on the wall in front of the conference room along the lower edge of his glasses. Judging from the enlarged display of the running log above, I heard it correctly. = 20 times. "this" ??Li Jie turned his head and looked at Song Jian, director of the Science and Technology Commission, who was sitting on his left. Then he found that the other party was also looking towards him. ? As absolute bosses in the industry, both of them obviously saw the potential of this software. Although what Chang Haonan has talked about so far is only about 10% of the entire project, it is enough to give a glimpse of the superiority of the final product. It is definitely an epoch-making product! Since my countrys first supercomputer, Galaxy No. 1, was put into use in 1983, the main problem that has plagued Chinas computer field has been the inability to increase its computing power. Its not even the turn to discuss the issue of component performance. ??But even if someone else exports the same chips and memory to you, the performance of your final finished product will still be very different. So much so that the United States has even relaxed its export controls on electronic components in recent years, but has strictly controlled the platform architecture. In short... I dont think you pose any threat. The actual situation is indeed similar. The latest Sugon 1000A supercomputer developed by the Institute of Computing for the Liaohe Oilfield has a peak operating speed of only about 6 billion operations per second. The Sugon 2000-1, which is currently under construction, has a target of only 20 billion operations. ASCIRed, which was just put into use on the other side of the ocean last month, has reached a speed of 1 trillion times per second. As for mass-produced commercial models like those purchased by major universities, the performance gap is even more obvious. Such a gap is also the main reason for the delay in the development of domestic computer commercial applications. After all, a limited number of topics can fully occupy the computing power of supercomputers. As a result, only the most important national projects can be allocated resources, and most researchers have no experience at all. Nowadays, with the supercomputing craze brought by Beijing Airlines, this situation has been alleviated to a certain extent, but these commercial servers with average performance often appear powerless when facing complex problems. If you want to change people''s old ideas, you have to make people feel the benefits. At this time, Li Jie recalled in his mind that when he met Chang Haonan a few days ago, the latter also said that supercomputing or server businesses should not be sold, especially in related industries. Underdeveloped China must provide continuous services and promote supercomputer applications. ? At that time, he just thought that this idea was very good and would definitely improve some user stickiness. However, the Institute of Computing Technology currently did not have the ability to do this work, so he entrusted it to Chang Haonan. In exchange for the priority use of the future Dawning 2000 computer and the opening of investment license to Dawning Group. ?But he didnt expect that before he even had time to convene the board of directors, the other party had already produced results. Although there are thousands of fields that require supercomputers, numerical simulation and simulation are definitely one of the fields with the widest range of applications. A 20-fold improvement in efficiency is equivalent to narrowing the computing power gap between China and the United States from three orders of magnitude to one order of magnitude. ??Although it is not a direct overtake, at least you can see the opponent''s back. ??Moreover, almost all engineering disciplines can benefit from it. Comrade Chang Haonan, I have a question to ask. A steady voice cut through the noise in the conference room. Nearly everyone turned around and looked towards the end of the room. (End of this chapter) Chapter 365 Grab resources from the dream company! Chapter 365: Grab resources from Dream Company! The speaker is Song Jian. And such a big boss actually used a humble expression like "asking for advice". Even before asking a question, he raised his hand specifically. The noodles are full! In this case, other people in the conference room naturally returned to silence instantly. Song Jian reached out and adjusted the black-rimmed glasses on the bridge of his nose: "Xiao Chang, I probably understand the mesh generation algorithm you just introduced. It requires a large-scale model surface mesh as input, and ensures that the surface mesh of the generated tetrahedral mesh is consistent with the input mesh. Highly consistent. ??Although he is not an expert in the field of numerical calculation, he obviously has a profound theoretical foundation after working in the field of control for many years. It is not difficult to just understand this introduction. Thats right. So, for larger-scale projects, will this process take up too much memory, causing the program to be unable to run normally? ?Chang Haonan wanted to say a good question at this time. But considering Song Jians age and status, he finally held back. ?In this era, many so-called "supercomputers" only have 4-8G of memory, which is actually unable to withstand high computing intensity. ??Furthermore, it does not mean that a program that requires 8G of memory can be used normally on a computer with 2G of memory by slowing it down four times. For a specific algorithm, simply reducing the calculation speed will not significantly reduce the memory usage. But Chang Haonan has naturally considered this issue. "That''s right. It will be mentioned in detail in the document I sent to the research group responsible for this module. When it comes to specific program writing, a multi-level regional decomposition strategy will be used to ensure the parallel efficiency of the method. Specifically, That is to say, the first level of regional decomposition uses planes to divide three-dimensional areas, and the second level uses straight lines to divide two-dimensional areas. Both parts are performed recursively and will be assigned to different processors. " "Judging from the results of my previous tests, for a supercomputer or server with 8G of memory, provided that the CPU concurrency capability is sufficient, it can handle a grid number of billions of units. As for more complex structures, , you need to wait until the trial version of the software is completed before officially testing it. "In addition, for computers with insufficient processors, we will consider providing a downgraded version. Of course, for commercial reasons, this version may be named open version or educational version. Its efficiency is probably that of the full-featured version. It is about one-fifth of the total, but it is still far more than similar products currently on the market such as OpenCASCADE Technology, and it also has some functions that the latter does not have. And when the commercial version of the software is released in the future, we will also selectively open purchase rights according to different customer levels. After this clear explanation, Song Jian nodded with satisfaction: Okay, I have no questions. ?After two hours of high-density information, most of the people at the scene were already quite exhausted, and the effect would not be good if they continued forcefully, so Chang Haonan directly announced a tea break. ?Of course, due to limited conditions, there are no fruits and snacks. Really only tea is provided. ?However, under the current situation, no one is in the mood to eat and drink. Especially the groups assigned to work on the grid generation module started discussions on the spot with the materials Chang Haonan sent them. ?Just like taking classes in college, people will naturally come to Chang Haonan directly. For example, Yao Mengna and Xu Yang. ??The two of them still dont have much psychological baggage. Chang Gong, no, Director Chang, Meng Na just put forward an idea. I briefly verified it and I think it seems feasible. The latter turned his head in surprise and looked at Xu Yang and Yao Mengna standing side by side. It seems that the relationship between them has become much better since they came back from Haojing this time... Junior...Junior brother, its like this. When I was at 603, I also participated in a project to improve the turboprop engines propeller adaptation. Chang Haonan thought for a while and felt that what Yao Mengna was talking about should be an improved version of the Y8. However, considering that not all people in the conference room were from the aviation system, he did not specify the specific model. ??The original Y8 used a four-blade propeller that was as mediocre and unspectacular as the An-12. By the 1990s, it had completely fallen behind the times in terms of propulsion efficiency and noise control. So in the original timeline, both the Y8 III platform and the Y9 platform were equipped with updated 6-blade propellers. Although the current development of Yun 8 has been slightly deviated due to Chang Haonan''s intervention at the end of last year, the specific propeller upgrade should not be much different. Uh... are you encountering difficulties? Thats not true. Although I am not as capable as you two, I can still do this kind of small work. Yao Mengna shook her head angrily. "I suddenly thought after listening to you just mentioned again the idea of ??converting triangles into pseudo-quadrilaterals. Is it possible to use real quadrilaterals or hexahedral meshes in the process of generating structured meshes? grid?" "For example, in the process of designing a new propeller this time, we used a large number of non-isotropic rational B-splines and T-splines. In this scenario, the quadrilateral grid has a tensor product structure suitable for spline fitting. It is easier to obtain tensor product patches than to obtain Bostain/Bezier bases based on triangular meshes, so it should be more suitable for modeling higher-order surfaces. Immediately afterwards, Xu Yang placed a notebook with a page of calculations on it in front of Chang Haonan and continued to add: "After she told me about this idea, I did a simple calculation and found that it should be possible to accurately process the quadrilateral mesh through a multi-point flux finite element method based on the lowest-order Brezzi-Douglas-Marini space. The following work I want to establish the theoretical analysis of velocity superconvergence of this method on h^2-consistent quadrilateral grids, but this is not an area I am particularly good at, so I want to see if you have any ideas. " ??The calculation process written by Xu Yang is the same as the program Chang Haonan would write when he was just reborn, with one emphasis on conciseness and conciseness. It might not be possible for another person to understand. Fortunately, Chang Haonan''s current theoretical level is enough to skip some of the less important parts in the middle. "Forget it, you should take this book first. Anyway, our top priority is to build the software framework according to your current thinking. The problem of the quadrilateral grid should be a matter of the subsequent product iterative upgrade process. It is not very important yet. Its urgent. Its not too late to tell me when you have an idea. Xu Yang looked at Chang Haonan who was bowing his head in thought. He also knew that problems in the field of computational mathematics were mainly based on sudden inspiration, so he couldnt rush it at all. So I prepared to take Yao Mengna back to her seat. In fact, even the grid processing method she proposed is completely new to the field of numerical analysis. Generally speaking, this takes more time. Why do large papers in the field of mathematics often take several months or even more than a year to be reviewed? Because the various new concepts and theories proposed in it are often enough for reviewers to understand for a while. ?Sometimes all the reviewers can''t understand it, but they can''t falsify it, so they can only put it aside for the time being. However, Chang Haonan called them directly from behind: "Etc., etc" Although the quadrilateral grid matter will indeed have to wait until later, I still have some ideas about your theoretical proof problem. You understand now? ?Xu Yang turned around suddenly, his face full of surprise. Its okay, because I have studied the multi-point flux approximation method, so I know a little bit about it, but its not a zero-level foundation. Chang Haonan directly picked up the pen from the side: You can refer to the super-convergent idea analysis of hybrid finite elements. First, find the interpolation that infinitely approximates the exact solution in the finite element space, and establish the relationship between the interpolation and the exact solution, and then establish the relationship between the numerical solution and the interpolation..." At the same time, at the back of the conference room, Song Jian patted Li Jie on the shoulder and motioned for the latter to follow him out. Under the guidance of several security guards, the two came to a secluded and uninhabited place nearby. Li Jie, what do you think of the prospects of Comrade Xiao Changs project team, including the company he will establish later? Unlimited. Li Jie answered almost without thinking: Not only is he an epoch-making leader in technology, but more importantly, I think Comrade Chang Haonan has a very strong ability to lead the overall situation. Such an evaluation even far exceeded Song Jian''s own expectations, so he became interested instantly: Oh? How do you say it? Following that, Li Jie roughly described the situation when Chang Haonan met with him a few days ago. "interesting" ??When he heard Chang Haonan expressed his hope to indirectly promote the application and development of domestic high-performance servers and supercomputers through his work, Song Jian also showed an unexpected expression. No wonder Lao Ding attaches so much importance to it and refuses to let go... ??The voice of the second half of the sentence was very low, and Li Jie couldn''t hear it clearly for a while: Uh... Director Song, what did you just say? Oh, nothing. Song Jian waved his hand, then changed the subject and asked quite seriously: Comrade Li Jie, what do you think of the reform of the Institute of Computing Technology in recent years? ?This somewhat sensitive question made Li Jie not sure how to answer it for a while. Since about four years ago, the Academy of Sciences has piloted an enterprise-institution joint approach to entrust the computing institute to the management of Dream Company. This is why the general manager of Dream Company can currently serve as the director of the Institute of Computing. There are only two of us here, you can say whatever you want without any psychological baggage. "this" ?Li Jie hesitated for a moment. Some things are definitely not easy to say in public. But now there are only two of us, Song Jian and myself, so it doesnt hurt to reveal more: Director Song, to be honest, Im not very optimistic about it. "When we are entrusted to Dream Company, it seems that the relationship between the two is closer, but in fact it has little impact on daily work. The funds for the three major projects in the institute still come from state appropriations. No matter where Dream is, He was not very interested in our technology development or product promotion. Instead, he was very interested in Shuguang Group. He even tested my tone and asked if the vice presidents of both parties could concurrently serve as the deputy general managers of the other company. " And you know, because of Academician Nis incident, Dream Company has been at the forefront recently, so we have actually taken on some unnecessary pressure..." "Um" ?Song Jian stood in front of a window with his back to Li Jie, so that the latter could not see his expression. But it was obviously thinking. After a long time, the former finally looked back: "After you go back this time, find a few trustworthy comrades who will be responsible for communicating with Xiao Chang. You must record all relevant information clearly and clearly. After a period of time, we will calculate the input-output ratio. Condition." ?This order made Li Jie''s eyes tremble suddenly. ?If nothing else happens, next year, that is, in 1998, the Academy of Sciences will make another large-scale organizational adjustment. Song Jian obviously has new ideas. (End of this chapter) Chapter 366 A big victory for the aviation industry! Chapter 366 A great victory for the aviation industry! ?Work meetings like this night were held for five consecutive days, which can be said to be full of intensity. Fortunately, any group specifically responsible for writing program modules only needs to fully understand the theoretical knowledge and programming ideas related to its own tasks, and for other parts, it only needs to know the relevant concepts. Even so, many people still say they cant bear it. Chang Haonan understands this situation. After all, it is an objective reality that people have different abilities. ?In order to complete this ambitious project, he has already concentrated a lot of efforts within his reach, and it is really hard to ask for more. So I spent a few days later to open small stoves for people in need. After a lot of push and pull, the entire project team was finally put on the right track. As for Chang Haonan himself, who presides over every meeting, he has basically become a monster in the hearts of all participants. It is difficult to understand why one person, a person in his twenties, can specialize in so many fields. And also have the ability to coordinate and coordinate on the overall situation. Since then, a legend has emerged in the ranks of computer and software engineering in China. Of course, these are all things for later. For the person involved, Chang Haonan, his task is indeed the most arduous. He is not only responsible for completing the first part of the software, which is the dimensionality reduction method for nonlinear partial differential equations developed for strongly coupled multi-field problems, but also solves the problems that others have solved. Problems encountered during project development, and functional testing and debugging of programs submitted to oneself. Writing the program itself does not take too long for Chang Haonan, and an 8-hour working day is enough to complete it. After all, he had spent an unprecedented 1,500 "huge sums of money" to have the system directly give the results, and his work efficiency had naturally improved to a level that he himself could not believe. The problem lies in the last two parts. In this era, there was no high-speed Internet as developed as in later generations, allowing software developers to work on the same platform even if they were thousands of miles apart. If the network speed of the 64K international dedicated line was used to transmit code engineering files, it would probably cost more than half of the entire project team. Time to wait. So we can only engage in centralized development! ?At the same time, under the arrangement of Song Jian, the Chinese Academy of Sciences also provided strong support and authorized the project team with advanced application permissions for all Sugon series supercomputers. ?The document level priority is second only to the nuclear explosion simulation project launched after the last nuclear test on July 29, 1996. But considering that even simulating nuclear explosions cannot be done every day, it is actually the highest. So, nearly 200 people from the 30 research groups participating in the project were arranged by Chang Haonan in the scientific research buildings of the Beijing Hang University Supercomputing Center and the Computing Institute. ??Then every afternoon, a special person from the Computing Institute will be sent to collect some problems and phased results that cannot be solved internally, and hand them over to Chang Haonan through a human body carrying a hard drive, and then take back the feedback results of the previous day... It should be said that this is the first time since Chang Haonan''s rebirth that he has truly experienced what it means to "concentrate strength to do big things." After all, the problems he solved before actually did not require the use of many resources. Most of the time, a factory-level unit could solve them. Although there was not much commotion this time, at the leadership level, it still involved the coordination of many departments such as the Science and Technology Commission, the National Science and Technology Commission, the Economic and Trade Commission, and the Planning Commission. ?It is not easy to turn on the green light all the way. In short, Chang Haonan hardly left home during this period, and his life was busy and fulfilling. Until July 16th. He received a call directly from the Commission of Science, Technology and Industry for National Defense, asking him to attend a meeting that night. And the special car to pick him up is already on the way. The call did not come from Ding Gaoheng or Huai Guomo himself, but from the office of the Science and Technology Commission. So this was no ordinary private meeting. ?It is naturally impossible for the other party to directly mention the topic of the meeting on the outside call, but since they were notified several hours in advance, it must be an emergency. Chang Haonan briefly recalled that he did not remember anything major that happened in mid-July 1997. He handed over some of the remaining work on hand today to Xu Yang, and informed the calculation office that there was no need to come over this afternoon. As the development progress continues to deepen, the ability level of the project team members and their understanding of the software itself have gradually increased. The problems sent to Chang Haonan every day and the bugs found in the software have been greatly reduced. A week ago, Chang Haonan wouldn''t have dared to put down half a day''s work like this. It had to explode the next day. ??When Chang Haonan rushed to the Science and Technology Committee, freshened up and put on a slightly more formal outfit and walked into the conference room, about half of the people were already sitting around the long conference table. He looked around calmly and found that he could only recognize Ding Gaoheng sitting in the first place, Huai Guomo in the first place on the left, and Liang Zhuoping, chairman of the Aviation Industry Corporation. There is no way. Although he almost found an independent office in the Science and Technology Commission, he has always been in direct contact with the two directors, one director and one deputy. For some of the middle-level cadres below... Sorry, Im not familiar with it. And judging from the way some of them were dressed, it seemed that they were not all members of the Committee of Science and Industry. Then he was called over by Ding Gaoheng. Is this Comrade Chang Haonan you mentioned to me before? ?Another person sitting at the main seat with Ding Gaoheng looked Chang Haonan up and down, and then extended his hand to him. State Economic and Trade Commission, Wang Yuzhong. Although it was the first time for Chang Haonan to see this person, he still had an impression of the name Ding Gaoheng once mentioned it to him when he just came back from Jiangcheng. Hello, Director Wang. ?Chang Haonans attitude is still very enthusiastic. After all, the 3 million yuan in funding he has now was approved by others. When facing the sponsor, it is not shameful to have a good attitude. Besides, if he really becomes the person in charge of a state-owned enterprise in the future, he will inevitably have to deal with the other party. Come, sit over here. Unexpectedly, Wang Yuzhong was more enthusiastic and directly pulled Chang Haonan to the first place on the right. That is, the location opposite Huai Guomo. Director Wang, is this...inappropriate? The location during meetings is very particular. The other party directly arranged Chang Haonan here, which even made him worry that he was flattering himself. ?However, Ding Gaoheng next to him also motioned to Chang Haonan to just sit down and sit down. "What''s inappropriate? To be honest, Comrade Xiao Chang, you played a much greater role than me and Lao Ding in making this meeting possible today!" ?Wang Yuzhong also explained. "So what is this meeting...about? The secretary didn''t say anything when he informed me." ?Chang Haonan is still a little curious. Hearing this question, the three people next to him and across from him all smiled. It seems that Xiao Chang has been busy with the project team recently and hasnt had time to read the news, right? Ding Gaoheng said as he took out a document that seemed to have dozens of pages from his briefcase and handed it to Chang Haonan: Look, this is a victory for the entire Chinese aviation industry, and it is also a victory for you! After speaking, he patted the latter on the shoulder. ?Chang Haonan took the information and turned to the first page. I was stunned for a moment at first, and then I was overjoyed Have NASA and the Department of Commerce...compromised? (End of this chapter) Chapter 367 Make conditions to Boeing and NASA, attack Chapter 367: Make conditions to Boeing and NASA, attack and defend! (10,000 per day, please give me a monthly ticket~) This type of closed-door meeting is not the most formal meeting, and the opponent on the other side of the ocean who previously felt invincible unexpectedly chose to compromise this time. It is ultimately a great event for everyone here, so the atmosphere Not that serious overall. As a result, until the meeting officially started, almost every participant had to come over and shake hands with Chang Haonan, which made the latter feel uncomfortable for a while. Fortunately, this uneasy state did not last long. Comrades from the Science and Technology Commission, the Economic and Trade Commission, and the Ministry of Foreign Economic and Trade Cooperation, our meeting will now begin. Following Ding Gaoheng''s concise opening remarks, the entire conference room suddenly became quiet. ?It is naturally impossible for people like Ding Gaoheng and Wang Yuzhong to speak at length in person at such an internal meeting, so an office staff member sitting next to Chang Haonan was responsible for a brief review of the entire Boeing-McDonnell Douglas merger. China and Europe have adopted similar strategies since the two companies announced their merger in December last year. That is, both parties will sell products to airlines in their respective countries, which will have an impact on the large business jet market in the economic region. declared to exercise jurisdiction on the grounds of significant impact. ?However, at the beginning, the two sides were still in a state of "close positions but fighting on their own". But both sides soon realized that this would be easily defeated by each other. ?For example, in February, the United States used the air crash in the Alps to try to force Europe to compromise. ?However, this later indirectly contributed to the in-depth cooperation between China and Europe in the fields of aviation safety and aviation manufacturing. That is the agreement signed in April. This is obviously something that was completely beyond the FAAs expectations. So much so that until more than a month later, when the content of the agreement was fully finalized, they were unable to take any effective response measures. ?However, the Americans did not take any action after that. ?For example, through communication with the new British cabinet, we found that the US was behind the incident at the end of June. ?Of course, if they say that they have no idea at all, then normal people will definitely not believe it. ??But now that the relationship between the two parties is getting warmer, everyone is tacitly understanding it. With the approval of the last country, the United Kingdom, on July 4, the European Commission officially passed a legally binding resolution, declaring that the merger between Boeing and McDonnell Douglas was incompatible with the Community market and requiring the parties to the merger to review the original merger. Plans are modified. ?Two days later, the U.S. Department of Defense and the Department of Justice issued notices to China and the European Union, stating that rejecting the merger would cause great harm to U.S. defense interests, the corresponding service industry, and the U.S. domestic job market. However, there was no response in the following week. ?Everyone knows that this kind of empty threat is actually a sign of desperation. Sure enough, on July 15, the day before, Boeing announced that it had received approval from the Ministry of Commerce to begin tripartite negotiations with the EU and China, and said it was considering adding relevant provisions to prevent restrictions on competition in the merger agreement. When the staff member finished speaking the last item, thunderous applause erupted in the conference room. There is no need to organize or take the lead. In fact, in the entire conference room, the person who needs this process the most may be Chang Haonan himself. ??Although he has been behind almost the entire process of China''s entry into the game, deepening cooperation with Europe, and now breaking out of the game, he has not continued to follow up on this matter. Even Boeings decision to make concessions was only known after coming to the conference room. But even those who had heard the news before were still unable to conceal their excitement on this occasion. Especially those from the Ministry of Foreign Economic Trade and Cooperation. No one knows better than them how much losses and unequal treatment China has suffered in the commercial field over the years. Every time we encounter a dispute, it almost always ends in a compromise on our side. In the context of a clear gap in hard power, there is really not much that can be accomplished through negotiation alone. Many younger people have never experienced anything that can be called a success since they started working. But this time, they instantly gained confidence. It wasnt until Ding Gaoheng raised his hand to indicate that the applause gradually subsided. Although we have achieved initial victory, we still cannot relax before the final negotiation results are released. Everyone returned to sitting upright. Even the waist is straighter than before. "Then, let me introduce the latest situation." Wang Yuzhong glanced across the venue from left to right, and then he began to say: According to the news sent back by our negotiating delegation from Brussels, the conditions offered by the EU are: 1. Within ten years, Boeing will maintain the independent legal status of Douglas, McDonnell Douglas business aircraft manufacturing arm, and submit an annual report on Douglas operations to the EU; 2. Within ten years, Boeing shall not sign any exclusive supply agreement and give up its 20-year exclusive supply rights with American Airlines, Delta Air Lines and Continental Airlines, but Airbus is not subject to this restriction. ; ? 3. Boeing will license all competitors to use the patent results and technical secrets it has obtained so far through research and development work funded by government funds; ? 4. Boeing guarantees not to abuse its market dominance in transactions with suppliers. This clause will be subject to regular review by the European Council. " After finishing the four points, he put down the document in his hand: Depending on the interoperability between us and the EU, Boeing and NASA should be able to accept this condition. For a time, everyone in the venue had wonderful expressions. ?Chang Haonan believes that if the two bosses were not sitting in the first place and suppressing them, many people would subconsciously use foul language. This is simply unimaginable ?After a long time, someone sighed with a slightly trembling tone. Who can believe that Boeing, which has always been the dominant player in the aviation industry, would agree to such a request? Not to mention anything else, Article 2 alone states that Boeing is not allowed to sign an exclusive supply agreement within ten years, but Airbus can sign it, which is very likely to directly cause the market share positions of the United States and Europe to change. The so-called exclusive supply agreement requires the airline purchasing the aircraft not to purchase other competing products of the same type at the same time. As a condition, the airline will generally receive a relatively preferential price. Generally speaking, this is a powerful weapon used by the strong party to suppress the weak party. ?If you had to choose between the two, at least in the late 1990s, most users would still choose Boeing over Airbus. ?However, now the situation has suddenly reversed. It seems that Boeing is under much greater pressure on this matter than we imagined Even Huai Guomo, who was sitting opposite Chang Haonan, took a while to calm down. This is the purpose of our meeting today. Ding Gaoheng said and lightly knocked on the table in front of him: Since Americans can agree to such harsh demands on the EU, what conditions should we put forward? ?Wang Yuzhong, who just took a drink of water, added: One of the conditions currently proposed by the Americans is that they are willing to reach mutual recognition of the airworthiness of regional passenger aircraft with us, just like JAA. The standards are the same, 50 tons, 100 seats and below, and they need to be produced in my country. ??Everyone has suffered a lot of psychological shock tonight, but such conditions still made many people start to look at each other in confusion. It seems...a very sincere condition? "That''s right... when we were mutually recognizing each other with Europe, we seemed to have developed a lot of technologies..." "If we can negotiate mutual recognition of branch lines with FAA and JAA, it should be a good result..." Negotiations, in the final analysis, must be based on strength. After all, Europe has a company like Airbus that is equivalent to Boeing, so it can occupy absolute dominance. After all, Chinas aviation technology lags far behind in comparison, so rationally speaking, it is impossible to propose the same conditions as the EU. To take a step back, of the four EU articles, the third article is originally for the whole world and does not need to be raised again, while the other three articles are not of much significance to China - ?You must first create a competing product that is on par with Boeing before you can talk about exclusive supply. ?So everyone basically feels that the mutual recognition of airworthiness for regional airliners will be a result that far exceeds initial expectations. The most that can be done is to add some agreements to produce Boeing aircraft parts in China, like it did with Airbus. In any case, just put it into the aviation industrial park that has not yet completed the site selection. ?However, at this moment, Chang Haonan raised his hand to indicate that he wanted to speak. Obviously, consent was obtained immediately. I think the American conditions are very misleading and not sincere enough. Therefore, we should reconsider formulating new negotiation principles and not let the other party lead us by the nose! (End of this chapter) Chapter 368 Completely clear the way for regional airliners! Chapter 368 Completely clears the way for regional airliners! "this" Even Ding Gaoheng and Huai Guomo were a little surprised by Chang Haonan''s statement this time. After all, during the previous negotiations with Europe, it was the former who first proposed mutual recognition of regional aircraft airworthiness with the other party, which ultimately helped the entire Chinese aviation manufacturing industry open up a new situation. Why did the opinion turn into opposition when we got here to the National Aeronautics and Space Administration? Chang Gong Even though everyone present was somewhat aware of Chang Haonans role in this matter, some people still couldnt help but want to refute. ?However, Ding Gaoheng raised his hand to stop him. Comrade Chang Haonan, tell me what you think? At this time, you can see the difference in the attitudes of people from different systems towards Chang Haonan. Ding Gaoheng''s eyes and tone were more solemn and questioning. ?Many experiences in the past have proven that Chang Haonan will not do anything aimless, since there must be sufficient reasons for saying so. ?Although Wang Yuzhong next to him was also very serious, he showed more curiosity. After all, his understanding of Chang Haonan basically came from indirect means such as other people''s narrations and reporting materials. "For us, JAA''s airworthiness certificate is a timely help, and even in the world, it is the first time it has been created from scratch. It is of great significance. For this reason, we have to make some technical and policy compromises. Its all worth it. But now that the FAA has come up with the same conditions, it can only be said to be the icing on the cake. Chang Haonan no longer felt nervous about such an occasion, so he just cleared his throat, took the microphone and started to speak: For the vast majority of markets around the world that do not have the conditions to conduct airworthiness certification independently, the airworthiness qualifications in Europe and the United States are almost the same, and they can easily help us enter the local market. From this perspective, Having another mutual recognition of airworthiness with the FAA will not bring us much commercial benefit. ?The clear explanation immediately convinced some people who were just in excitement. ?Of course, some people still have some thoughts on this: Butif this agreement can be reached, wouldnt it help our aviation products open up markets in the Americas in the future? In most countries in North and South America where the United States has an overwhelming influence, the FAA is indeed more convincing than the JAA. But it can only be said that people in this era are still too credulous in the free market. But the reality is that whether we obtain the FAAs airworthiness certificate or not, it is almost impossible for us to enter the American market. ?Chang Haonan shook his head slightly, and at the same time thought quickly about what reason to give. 1997 is not 2020. If we explain it from the perspective of trade barriers, the effect may not be good. After all, Americans these days are indeed promoting the process of globalization. In the context of this era, it would be difficult for Chang Haonan to convince himself that Americans would build a high wall more than 20 years later, let alone others. So in the end he decided to start with the aviation industry field that he was most familiar with: "Currently, the major companies in the world that produce regional aircraft, Bombardier and Embraer, are all in the Americas. In addition, their areas are vast and sparsely populated, have a large number of small settlements, and are relatively wealthy. Therefore, their regional aviation market has been growing since the 1970s. It has developed rapidly since the beginning and is now very saturated. For airlines such as Delta Air Lines, Continental Airlines, and Air Canada, the proportion of regional aircraft should exceed one-third. " "Even if policy factors such as exclusive supply are not taken into account, the profit margin of regional aircraft is relatively thin. Airlines that are already accustomed to a certain enterprise''s aircraft will hardly retain another model of the same level as mainline aircraft. We There is no market space at all. So, the main markets we are targeting in the future should be Southeast Asia, Central and Northern Europe and the Mediterranean region. These markets are more suitable for the development of regional aviation, but so far there are still big market vacancies, especially for 90-100 seats. Level models are almost completely blank. After saying this, the atmosphere at the scene was obviously completely different from just now. "Moreover, for the United States, if the European side has already opened the door, continuing to carry out airworthiness blockade alone will not only not affect us, but may be detrimental to the FAA''s own authority. After all, the other side is now You should already know that our research level in the fields of aviation meteorology and flight safety is completely unique. ?Chang Haonan added another big chip at the end: So I guess, even if we dont add this content during the negotiations, the FAA will follow up and mutually recognize the airworthiness of our regional aircraft sooner or later. Their move is equivalent to a white wolf with nothing..." He mentioned without any trace the key to this comeback, which is Chinas world-leading aircraft anti-icing technology. Incidentally, it also enhanced his own persuasiveness - after all, it can be said that he was the one responsible for the research and development of this technology. ?At this time, participants from the Ministry of Foreign Trade and Economic Cooperation and the State Economic Commission, including Wang Yuzhong, also paid more attention to Chang Haonan. Just like the situation in 611. Hearing that someone is awesome is quite different from finding out that this person is really awesome. Comrade Chang Haonans opinions have given us a lot of inspiration..." ??Wang Yuzhong said, putting down the pen in his hand: "It seems that we are indeed a little conservative, and we should be able to put forward some conditions that are more beneficial to us!" ?At this time, many people noticed that he had actually written down a lot of things in the notebook in front of him. ?This made some comrades on the Economic Committee suddenly feel a little panic- ?Just now, many people were only listening to Chang Haonan''s speech and did not pay attention to Wang Yuzhong''s actions. ? It turns out that my boss took notes, but if you didnt take them down, do you still have some thoughts in your heart that you havent said out loud? ?So they all picked up their pens and began to sort out the several reasons that Chang Haonan had just summarized in their memory. Thats right, we should take a broader view. Ding Gaoheng also nodded in agreement: "In this case, I think maybe we can gradually increase the upper limit of FAA''s airworthiness certification slightly? In this way, when we go to talk to Europe about expanding the scope of airworthiness certification in the future, we can have one more card in our hand. Good to fight. In this conference room, Chang Haonan was undoubtedly the most professional person in the aviation field, so everyone turned their attention to him. "Of course there is no problem with the sausage-slicing tactic. Boeing''s main products starting from this year are the 737-700 and 737-800, so we should be able to increase the psychological expectation of the negotiation to 130 seats or 65 tons. Of course, we can raise it at the beginning. Its slightly higher, leaving some room for bargaining. In fact, this idea is somewhat similar to Chinas negotiation strategy when it introduced high-speed rail. Its just that the focus is not on price, but on the scope of mutual recognition of airworthiness. It would be best if the JAA and FAA could compete in this area. ?For a highly sensitive matter such as mutual recognition of airworthiness, it is still relatively difficult to get it right in one step. But boiling a frog in warm water is much easier. On the other hand, Chang Haonan also knows that the regional aircraft that will dominate the market in the future will actually be "quasi-mainline" models like the Airbus A220. Comfort and flight performance are benchmarked against trunk lines, but operating costs and airport requirements are benchmarked against branch lines. ??The C808 currently under planning, which is the domestic version of Tu 334, just meets this requirement. Therefore, it is better to take advantage of this opportunity to completely clear the obstacles for the development of domestic regional aircraft in the next few years. ?Chang Haonan, after agreeing with Ding Gaohengs opinion, continued to add: In addition, I have another idea, but it requires comrades from the Economic Commission and the Ministry of Foreign Trade and Economic Cooperation to carefully consider the feasibility. Can you try to ask the United States to agree to increase my countrys tariff ceiling on aviation industry products from the currently determined 6% to a level of 15%-20%? As soon as these words came out, there was a sound of inhalation all around. (End of this chapter) Chapter 369 Feel proud! Chapter 369 Feel proud! Traditionally speaking, if an independent country wants to change its own tariffs, it is a completely internal matter that outsiders cannot interfere with. At least not directly involved. But the situation at this time is rather special. China is actively seeking to join the WTO and has completed most of the necessary negotiations. The only remaining obstacle on this road is the United States. Although the attitude of the White House has changed, anyone with a discerning eye can see that China''s accession to the WTO has been basically finalized. It is nothing more than some specific conditions and details, and there is still suspense about the sooner or later it will join. But for both parties, the most intense game has just begun. ?With the size of these two countries, even the slightest favorable change in the conditions for final accession to the WTO will produce huge benefits in the final implementation, so every detail must be paid attention to. The issue of tariffs will naturally become the focus. Under normal circumstances, such a thing as triple the single-digit tariff would not be raised at all. Thats outrageous. After all, one of the purposes of the WTO is to reduce tariffs and non-tariff trade barriers among members. But now that the stock prices of Boeing and McDonnell Douglas have plummeted, they will not care about these small things as much as they did in the past. This can be seen from the outrageous agreement they reached with the EU. Although the tariff ceiling of 15%-20% is outrageous, compared with the overbearing clause that cannot sign an exclusive supply agreement within ten years, it is completely sprinkled with water. Chang Haonan dared to propose this idea, but he was actually quite confident in his heart. In fact, in the previous life, the Boeing-McDonnell Douglas merger was a bad debt. Although there are countless high-sounding reasons on the surface, the essence is that executives from both sides are coercing a ruthless job like NASA and the Department of Commerce for their own selfish interests (not even shareholders or companies). Before they announced the merger, they did not even consider the impact if someone intervened. Let alone come up with a plan. After all, we are Americans who have just ended the Cold War and are at the peak of our national power. It is normal to have this mentality. As a result, the EU directly gave it a slap in the face. ? Airbus subsequent market performance exploded, largely due to the settlement terms reached with Boeing. And this is when China has no side at all and has not set up any obstacles. ??Now inspired by the cooperation between Europe and China, decent countries around the world are on the opposite side of Boeing, and the situation is obviously worse for the latter. Otherwise, there wouldnt be a third item in the agreement that can be called freeing oneself. ?This content also existed in the previous life, but the authorization targets were only limited to companies within the EU. Now it is directly and completely open. ???If you dont seize this opportunity to beat up a drowned dog, then you are still a human being? Its just that he has not been involved in the trade field in the past, and actually does not have any educational background related to international trade. He is not suitable to be too strong and decisive like the aviation issue he just discussed. Thats why I used a tone of soliciting opinions. As soon as Chang Haonan finished speaking, Ding Gaoheng spoke immediately: "Raising tariffs on some aviation products is indeed conducive to the development of our country''s aviation manufacturing industry." Of course, it is not convenient for us at the Science and Technology Commission to express our position on matters related to trade cooperation. We should listen to the opinions of comrades in the economic and trade departments. Who can sit in this conference room and not be a human being? ?Sometimes, when others ask for your opinion, they are not really asking for opinions. Even for parallel departments at the same level, the weight of their voice is very different under different circumstances. You must know that although this is the area under the jurisdiction of the Ministry of Foreign Trade and Economic Cooperation, the ability to revitalize the situation in the Boeing-McDonnell Douglas merger was almost entirely based on the initial proposal of the Commission of Science, Technology and Industry for National Defense and the key core technologies developed under the leadership of Chang Haonan. ?Now that Chang Haonan has made his opinion clear, Ding Gaoheng said it was inconvenient, but his intention was obviously to stand behind the former. Dont say that you dont support it, even if you hesitate, there will be big problems. Theres no problem with that. ??A person sitting diagonally across from Chang Haonan quickly expressed his position: "Of course, I can''t guarantee the final specific results here, but when we go back, we will inform the WTO negotiation delegation of this request, and the increase in the tariff ceiling on aviation products will definitely be implemented." When he came to him, he had already changed Chang Haonan''s suggestion into a requirement with great insight. "Ah, very good." Ding Gaoheng touched his chin lightly and showed a satisfied expression, but then added: "The key is the complete machine. The import tariff of the complete machine must be high enough. If the parts can be shipped to us for assembly, the price can be lower. In addition, we still need to explain clearly to the EU that this is not aimed at them. , you can even sign an immunity agreement first to prevent Americans from interfering with it and sowing discord. ??Although China and the EU are in the same bed and are only cooperating on a temporary basis, at least nothing can go wrong during the negotiation process. Otherwise it will be bad for both parties. The representative from the Ministry of Foreign Trade and Economic Cooperation nodded quickly and took notes quickly. ??This meeting lasted until that night, and a late-night snack was even provided. ? Its just that the following content mainly involves the revision of the Anti-Unfair Competition Law and future implementation issues. For Chang Haonan and the Commission of Science, Technology and Industry for National Defense, it is no longer so important to pay attention to. After the meeting, Chang Haonan could not be let go directly. Instead, he went to Ding Gaoheng''s office to sit for a while. Xiao Chang, lets just put forward two conditions. Shouldnt we be considered at a disadvantage? ?Huai Guomo, who didn''t speak much at the meeting but focused on taking notes, flipped through the notebook in his hand and asked with some unfinished meaning. There is no other way, I have been suppressed for a long time, and it is really rare to have such an opportunity to take advantage. Its definitely not a loss. ?Chang Haonan is basically satisfied with the current result: "Increasing tariffs on imported complete aircraft is equivalent to encouraging Boeing to put part of the final assembly work in our new industrial park. Moreover, the biggest significance of this matter to us is not actually these specific things. Boeings choice to negotiate with us is equivalent to announcing to the world that as long as it wants to conduct business activities in our country, even if the company is not registered in our country, it must still abide by our rules of conduct, including if similar incidents like this occur in the future. We can use this as a basis to unimpededly implement the principle of extraterritorial application of our countrys commercial laws. The significance of this in the commercial field is probably no less than that of fighting the United Nations Army! The rewards from the last event have been distributed. They were given to the two participants with the most likes and the three with the highest fan value. Each of them received 1,000 points. Take a look. (End of this chapter) Chapter 370 Guizhou Airlines’ new training aircraft Chapter 370 Guihangs new training aircraft After the conclusion of this negotiation with the United States, the localization of jetliners for Shanghai Airlines must be put on the agenda as soon as possible. Ding Gaoheng looked at the calendar on his desk, and then said to Huai Guomo: "I have read Tupolev''s plan, and it is very sincere. If the contract amount cannot be negotiated, then you can look for details on the technology transfer. Anyway, they are mainly short of money. It should be easier to relax in other aspects. The latter put aside the meeting minutes in his hand and nodded: "No problem. In fact, our communication with the drawing bureau has been quite smooth. The current focus of the negotiations is on the details of the technology transfer of the D436T1 engine. Motorsic Company and Zaporizhia Manufacturing Plant hope to occupy more of it. status, but Russias Ivchenko-Progress Company is unwilling to compromise. Hai Guomo is responsible for foreign technical exchanges and cooperation at the Science and Technology Commission level, and the workload this year has increased visibly. "The disintegration of the Soviet Union left a lot of bad debts to the countries after the separation. If this matter really continues to be entangled, I''m afraid it won''t be so easy to sort out. We don''t have time to wait for them to slowly argue. If necessary, we can give them both sides Apply some pressure." Since this year, the scope of affairs under the jurisdiction of the Committee of Science and Industry has increased a lot, and accordingly the pressure on Ding Gaoheng has also increased a lot. Especially in the civil aviation industry, the cake is too big and the conflicts involved are very complicated. Many eyes are staring at him. ?As long as things go on smoothly, if there are any setbacks in the middle, someone will make things worse. The safest way is to come up with some convincing results as soon as possible and directly block the mouths of those with bad intentions. Director Ding, Deputy Director Huai, I think these historical issues between them can be fully utilized. At this time, Chang Haonan, who was sitting next to him, also found a suitable opportunity to cut into the topic: Before the disintegration, Ermaos side, especially the east, was also a very important industrial base, especially the aviation industry was relatively developed, so they will definitely have many of the things we need. Now that the situation of Ermao is even worse, and the market itself is also small, there is bound to be a need to use technology in exchange for money, so we can use the conditions given by one side to negotiate with the other side..." In fact, if you look at it from the perspective of a traveler with hindsight, Ermao is not a good partner due to his continuous swings in stance and policies. Moreover, although he holds some key technologies, the completeness is generally too low. It''s okay to get the finished product back, but it''s still quite risky to engage in long-term cooperation. ?However, as a means of negotiation, it is definitely sufficient. The two people opposite naturally understood this set of logic, which was not too complicated. The move that Xiao Chang mentioned should have been called two peaches killing three soldiers in ancient times. Ding Gaoheng said and looked at Huai Guomo: "But Lao Huai, although the method is very good, it will test the level of negotiation operation. It is up to you to determine how to grasp this degree, but you must not mess it up for me." Compared with the departments responsible for external exchanges and cooperation, the talent of the Commission of Science, Technology and Industry for National Defense in this area is limited after all, especially as the transaction volume of orders and the impact of other levels behind the orders continue to increase, they were previously mobilized from the Aviation Technology Import and Export Corporation The manpower gradually appeared to be somewhat inadequate. After all, this process is indeed a bit too sudden. Just a year ago, China''s aviation technology import and export consisted of a very few cooperation projects with Russia and the export of some low-end (high cost-effective) fighter jets to third world countries. The quantities were very small and the negotiation process was simple. Similar to buying vegetables at the wet market, it doesnt require many hands at all. As a result, people are now needed almost everywhere. ?For example, who would have thought that China would have the opportunity to achieve in-depth aviation technology exchanges with Europe, and would push the two behemoths Boeing and FAA to where they are now. By the way, Xiao Chang, there is one more thing. After the civil aviation matter came to an end, Ding Gaoheng lowered his head and took out a file bag from the drawer under his desk: "Guizhou Airlines submitted a model application, saying that in the process of technical verification for Project 10, they used some results to make some improvements to the current JJ-7 and create a new training aircraft. You take a look." ?Chang Haonan took the file bag. He naturally knows this matter. Or rather, he pushed it with his own hands. ?However, the efficiency of the other party is indeed good. It has only been about five months, and the project materials have been submitted without any serious foreign aid. "Although it is said to be an improvement of the JJ-7, I can''t see any traces of the original model except for the tail part, which still has a slight trace of the J-7. In this case, it must be considered a new model. " Ding Gaoheng half lay back on the chair and scratched his head in distress: "The approval of new model projects is not something that our Science and Technology Commission can decide on its own, so the suggestion Liang Zhuoping gave them was that it would be best to come up with a more complete design, especially for the specific performance of the aircraft. We need to have a more specific expectation to make customers aware of their needs for this new aircraft." Chang Haonan took out two stacks of information that were not too thick and quickly read through them. The general idea is indeed similar to what he said at the beginning of this year. Lets start with a technically conservative version, and then slowly change it later. But its not just a simple reproduction. Also added some details that he had not mentioned at the time. For example, additional drag reduction treatment was performed on the outer edge of the wing, the ventral fin was completely eliminated, a larger vertical fin was replaced, and a long fuel tank was added to the back of the fuselage. In short, it can be seen that the subjective initiative is still very strong. Its just that there is still some lack of enthusiasm in painting technology, and the advantages of several key core technologies such as full-authority digital electronic control, large side slats and DSI air intakes are not fully demonstrated. ?Of course this cannot be blamed on Guihang. They had no experience in approving projects for new models before, so the JJ-7 was transferred from Rongcheng. Being able to figure out the design plan within this period of time actually exceeded expectations. "This aircraft... of course has enough potential, and when I communicated with the pilots before, they did feedback that our army seriously lacks suitable high-level trainer aircraft. I have even flown the JJ-7 aircraft once. Not to mention, the view is very bad. Chang Haonan originally helped Guizhou Airlines develop this model. Firstly, the military had a real need for advanced training aircraft. Secondly, he also wanted to help Guizhou Airlines, which had the most difficult conditions, solve the most basic survival problems. ?Although Guihang in his previous life finally managed to survive in the new century, it was not bitter enough to be appreciated by outsiders... Moving Guihang directly out of the mountains is of course a once and for all solution. ??But when we were engaged in the third-line construction, it was the local folks who supported the aviation system and pulled together several manufacturing plants and research institutes. Now it is really not easy for you to just slap your **** and leave. A large-scale aviation manufacturing enterprise is also a very important resource for Guizhou Province, which is not economically developed. What Guihang means is that it wants to bring the relevant technical information of this model to the capital in the near future and find experts to help refine the design plan. After thinking about it, I think you are better at this aspect. Seeing Chang Haonan finish reading the information, Ding Gaoheng continued: But I think you must have been busy with your project team some time ago, so I didnt let Liang Zhuoping contact you directly. I left it in my hands first. I just happened to have a meeting today before I remembered it again. "This matter will be done according to your schedule. When you are busy for a while and you have time, you can inform them to come over." You really dont have to wait too long. Chang Haonan gathered the scattered information and put it back into the portfolio: "The basic framework of our software will be basically completed in about half a month. Although there is still a lot of finishing work to be done later, the basic functions, especially the basic functions of force-thermal coupling, are in place. It''s just right. I was also thinking about finding some project to conduct application testing, but they came to save me trouble. " Then I ask them to come over at the end of the month? Ding Gaoheng did not show much surprise at this time point. On the one hand, his resistance in this aspect is relatively high, and on the other hand, he lacks intuitive understanding of the complexity of writing modern commercial software. You must know that after Li Jie saw the work efficiency of the project team with his own eyes, he went directly to Beijing Hang University and used the position of chairman of Shuguang Group as a condition. He hoped that Chang Haonan could share his parallel modular program development method. ? ? Then after spending half an hour listening to the latters working mode in detail, I was deeply shocked and left at the speed of light It doesnt have to be the end of the month, just another week or so. Its not a complicated task. With me as a developer, I dont have to wait until the basic framework is completely completed. ?Chang Haonan stood up and put the file bag back on Ding Gaoheng''s desk. (End of this chapter) Chapter 371 Small scale chopper Chapter 371: Test your skills Somewhat beyond Chang Haonan''s expectation was that besides Gui Hang, who was completely caught by chance, there were also people who moved equally fast. Just three days after the three-department joint meeting, he received a very polite application letter in his office at Beijing Airlines. Sent via a dedicated military line. The letters came from Jinling University of Science and Technology and the General Armament Department, which had just been established a few months ago. The sender who finally signed the letter was named Rui Xiaoting. Actually, he did it half-heartedly. Because the content is to invite Chang Haonan to provide theoretical and numerical calculation consultation on a "multi-body system launch dynamics problem". Its still the kind that pays consulting fees. There is no direct mention of the new software Chang Haonan is writing. ??However, judging from the feedback from the other party on paper, it should involve the joint application of the transfer matrix method and the finite element method of some kind of discrete-time controlled system. Although the transfer matrix method is not directly included in the database, Chang Haonan considered when designing the software that some unpopular directions may have some calculation methods that are not universal, so several custom interfaces were specially set aside. . As long as users have the corresponding algorithm design and programming capabilities, they can add their own simulation methods to the software. And can be used in conjunction with existing variable discretization or variable separation methods in the software. So this is exactly what his current research direction can solve. Even more suitable than the advanced trainer aircraft from Guiyang Airlines. After all, the latter is actually no challenge to Chang Haonan. Even without the new software at hand, he can still rely on old methods and experience to solve it. As for the specific projects behind the other party''s question... ??Although the launch dynamics of the multi-body system is a rather unclear statement, considering the nature of Jinling University of Science and Technology and the rise of another General Armament Department, the result is actually not difficult to guess. Generally speaking, it is inseparable from rockets or missiles. So after a moment of thinking, he decided to let the other party come over first so that he could understand the situation face to face. ?Mainly because of the rapid progress of his own work at hand with the help of Xu Yang and other key figures in the computing institute, it has reached the point where he has to stop and wait for others. As a counterpart in the military industry, the other party also showed a considerable degree of vigor and resoluteness. Two days after the reply was sent, Professor Rui Xiaoting brought a person who looked like a student to the supercomputing center of Beijing Hang University. After meeting, this time, Chang Haonan was a little surprised. ? Judging from the content of the initial application letter, the sender should be the person in charge of an entire equipment type, not a specific model. Generally speaking, those who can secure this position must be big bosses with sufficient qualifications and levels. But the person in front of me looks quite young, in his thirties or forties at most. Excluding Chang Haonan himself, who is a cheater, he can definitely be regarded as a young talent. And Rui Xiaoting had actually done his homework before writing the application letter. Although he still suffered some psychological shock when he saw the real person, he was mentally prepared after all. Hello Director Chang, thank you very much for accepting our application. "After I saw your letter, Professor Rui, I was looking forward to meeting you soon, but I didn''t expect you to move so quickly." The two shook hands tightly and exchanged a few polite words for just meeting. Then they sat down on the two sofas in the reception room of the supercomputing center. Well, theres nothing I can do about it. Time is tight and the tasks are heavy. Party A is urging me urgently, otherwise I wouldnt come here on a Saturday afternoon to disturb your rest. ??Rui Xiaoting said, taking out a laptop from the bag behind him and placing it on the table. After turning it on, he turned the screen towards Chang Haonan: Let me make a long story short first and introduce the specific content of our topic. There are some things that are not convenient to write down in writing. Im guessing, maybe a multiple rocket launcher? ?Chang Haonan looked at the Windows system that was reading the article and expressed his previous guess. Computers in this era are more user-friendly and allow users sufficient time for communication. ?This made Rui Xiaoting express a little surprise for the first time: Yes, it seems that Director Chang is also involved in the field of multi-body dynamics? Well, from the perspective of numerical calculation, it has some similarities with the problems I have studied before. Of course, if you really want to say it, it is definitely not as good as experts in the field like you. Chang Haonan, who confirmed his guess, was not prepared to steal the spotlight today. He just wanted to verify the efficiency of his software when facing real problems. Its good if you understand, it saves me the most troublesome part. Rui Xiaoting sighed softly when he said this: When many people hear that we are researching artillery equipment, they feel that the technical content is not high. As a result, we receive very little funding and our scientific research priorities are not at the top. To be honest, before I sent the application letter this time, I didnt expect to receive a response soon. As a result, I received a call from the General Armament Department the next day, asking us to fly to Beijing to meet you immediately. Chang Haonan, who has been engaged in aviation for his whole life, has never had such an experience. He really didnt feel the same way, so he had to change the direction of the topic slightly: Rocket launchers are different from ordinary artillery equipment. The technology is very difficult. Especially for long-range rocket launchers, the design difficulty is probably no lower than that of ordinary tactical missiles. Perhaps long-range rocket launchers are somewhat similar to tactical ballistic missiles in terms of appearance and military use, but from an engineering perspective, they are two completely different pieces of equipment, and their performance optimization orientations are also very different. Hearing that Chang Haonan had such a view, Rui Xiaoting immediately became more energetic, and even felt as if Boya had finally met Ziqi: "Yes, yes, the long-range rocket has a high trajectory and even has to enter a section of the stratosphere. In addition, the projectile itself has to spin to maintain stability. The flight dynamics equation is extremely complicated, because continuous launch must also be taken into consideration. Due to the transient conditions of the launch tube and the interference between multiple rockets, the problem is much more complex than laymen imagine. " When the two of them were chatting to this point, the computer finally started up. I wonder if Director Chang has heard of our countrys Guardian series of rocket launchers? The one that was successfully exported to Trkiye last year? Chang Haonan in this timeline actually had no contact with relevant information, but he had seen many reports in this regard before his rebirth. Yes, it was only after we proved that our products have the potential to earn foreign exchange through exports that we received more attention. Otherwise, we might not even have the opportunity to send you a letter to apply. ?Rui Xiaoting gestured to the graduate student who came with him next to him. The latter immediately took out a piece of paper material from the bag behind him and handed it to Chang Haonan. Appears to be a technical manual. Before coming, Xiao Li originally said that he might need to introduce the nature of our products in detail, so he brought something like this as a souvenir to you. Its really a technical manual. ?It''s a pity that Chang Haonan doesn''t have a real guy at hand for practical operation. "The topic we are studying now is to comprehensively upgrade the previous basic model, which is the Guardian 1, to create a long-range missile that is more advanced in performance and can even be used as a substitute for ballistic missiles for some small and medium-sized countries. Rocket launcher! (End of this chapter) Chapter 372 A long-range rocket launcher comparable to a tactical missile! Chapter 372: A long-range rocket launcher comparable to tactical missiles! So where are you now? Chang Haonan cant remember whether the Guardian series rocket launcher is a product of the weapons industry or the aerospace industry, but it has little to do with the aviation system. So he has limited knowledge about the subsequent development of this model. He only knows that it seems to have developed a rather large family of models. Rui Xiaoting did not answer immediately, but took the mouse and opened a file on the desktop. ? is a format that Chang Haonan is very familiar with. ?Engineering files of the classic finite element analysis software ABAQUS. ? It is also one of the targets that Chang Haonan targeted when designing his own software. After waiting for about two minutes, a three-dimensional structural model diagram that had been meshed was finally loaded. Now this is the model that was built when doing finite element analysis for the Guardian 1 rocket launcher, including the launch tube group, rockets, revolving disk, car body and the entire gun. Rui Xiaoting introduced to Chang Haonan while turning the pages: On this model, limited by the simulation level and computer computing power at the time, only the most basic launch dynamics and flight dynamics problems were solved. The final Defender 1 has achieved the goal of extending the range to 180km, and has also won the favor of some customers who are in urgent need of medium and long-range deterrence capabilities. However, overall, this model is still far from the initial expectations. 180km should be very far, right? I remember there seems to be an international convention on the range limit of exported weapons? ?Chang Haonan is very sure that at least in the original timeline, the Guardian series was not equipped for our army''s own use. Yes, the range of exported weapons cannot exceed 300km. ?Rui Xiaoting nodded, then turned around and started rummaging in his briefcase: "But you are right. For the vast majority of customers, the range of the Guardian 1 is actually sufficient, so this time we are focusing on improving other parts, mainly accuracy and efficiency during salvo firing. "Previously, in order to avoid the vibration and tail flame generated when large rockets were launched from affecting subsequent firings, we simply referred to the design methods of some ballistic missiles and limited the time interval between consecutive launches across the board. However, judging from the results, it was still a bit underestimated. The effect of initial disturbance on long-range ammunition is eliminated. For example, because the rocket launcher has a directional tube, there will be a locking force in the initial stage that acts on the directional button position of the projectile, which is not found in the missile system..." Okay, let me take a look ?Chang Haonan took the mouse from the side and opened the simulated log file from the same folder. It is naturally impossible to calculate such a complex multi-body dynamics problem on such a laptop. Presumably the other party also used the help of supercomputer at that time, and for a professional like him, even if he has no research on artillery engineering , but we can still see some valuable things from it. ?At this time, Rui Xiaoting had just taken out a mobile hard drive, which was considered a black technology in this era, from his bag, and was going to show Chang Haonan another simulation result Since the current storage capacity of a single hard disk is still very small, project files and simulation results cannot even be stored together. ?But when he turned around, he found that Chang Haonan had opened the running log directly and was staring at the screen intently. Director Chang, I have direct results, but you cant tell by looking at the log ?However, before he finished speaking, Chang Haonan pointed at a piece of content on the screen and said: In this precision design, the directional tube of the rocket launcher, and of course the rocket, should be treated as a rigid-flexible coupled multi-body system. If it is simply approximated as a pure rigid body, the simulation effect will definitely be greatly reduced. As the range and power of weapons continue to increase, the movement produced when ammunition is fired is also getting larger and larger. As in the past, each component of the weapon system is regarded as a rigid body, and then the product is made closer to a rigid body by increasing weight or improving strength. The method has become increasingly unfeasible, so elastic supports and flexible body dynamics have been gradually developed since the 1960s and 1970s. That is to say, it no longer pursues the absolute stability of the weapon system during the launch process (which is actually impossible to achieve), but uses high-precision vibration simulation and prediction to make the weapon stay in the vibration waveform every time it is launched. Possibly the same location, thus achieving relative consistency in the weapon system. In other words, the weapons and equipment designed using this idea may look shaky when launched, but the actual accuracy will be better and the weight will be much lighter. Typical examples are the BM21 rocket launcher and PKM general machine gun. Of course, Chang Haonan was able to understand this aspect because this idea was later expanded to the field of aerospace design. When designing the Defender 1, although the evolution of the launch frame from rigid support to elastic support was considered, the barrel coupling system was still approximated as a rigid body. Its reasonable, but not entirely reasonable. ?Of course there is nothing we can do about it. The design work of Defender 1 began in the early 1990s, and as Rui Xiaoting said just now, artillery equipment does not have too many resources. It is already very awesome to be able to do it like this. Ah...ah? ?Rui Xiaoting''s hand holding the hard drive was frozen in mid-air. The conclusion itself is not surprising. Even the graduate student who came next to me can tell you a lot about this issue. In fact, this was exactly what he wanted to explain after taking out the mobile hard drive. But Chang Haonan pointed out the problem directly after looking through the logs for a few minutes without seeing any numerical calculation process! Who is this? What about the not as good as us experts in the field just mentioned? What''s worse? ?Rui Xiaoting''s reaction made Chang Haonan feel a little less confident: Uh...am I right? Yes, very true. The former silently stuffed the mobile hard drive back into his bag. Obviously the efficiency has improved a lot compared to the expectations before coming here, but I still have a very complicated mood. Why? Now that youve figured it out, lets get straight to the point. In order to solve the problem you just mentioned, I have specially developed a new numerical calculation method, temporarily called the multi-body system discrete time transfer matrix method, or MS-DT-TMM for short. "The specific idea is to linearize the dynamic equations of each component in the time domain, so that both spatial transfer and time iteration can be taken into account during analysis, and it is very suitable to be extended to rigid-flexible coupled plane motion problems. Compared to The classical transfer matrix method can only handle simple harmonic motion, MS... Well, my new method can analyze linear or nonlinear time-varying or time-invariant systems. "However, the limitations of using only this method are still very large, especially the elastic dynamics analysis of complex boundaries and complex shapes still relies on other numerical analysis methods, so I am here to ask you if there is any Possibly, multiple different computational mechanics methods can be jointly applied on the same platform? Of course its possible. Hearing this question, Chang Haonan laughed directly: Not only is it possible, I even have the tools. Get the information and follow me. (End of this chapter) Chapter 373 First user of new software! Chapter 373 The first user of the new software! When hearing this answer, Rui Xiaoting suddenly felt a sense of happiness. Its like coming home after being hungry for a long time, opening the door just in time to catch the dumplings just coming out of the pot. For a moment, he even felt that the other party had predicted his arrival in advance. Otherwise, how could he have made such full preparations? ?But he was quickly denied by himself. It is not an insistence on materialism. But he believes that he should not be that important... Actually, Professor Rui, if you had come here a week earlier, I really wouldnt have any good ideas. ?Chang Haonan led Rui Xiaoting and two others into the computer room. ?Similar to the Dawning 1000 of the Computing Institute, not everyone has access to the real server cabinets. Except for a few fixed maintenance engineers, everyone who enters has to personally approve the note from Chang Haonan. So the three people came to an operating computer room with several computers as usual. ?Most mobile hard disks in this era cannot be hot-swapped while the machine is powered on. You need to shut down the machine first and then plug it into the motherboard. ??While the computer was restarting, Chang Haonan took advantage of the situation and started Amway''s new software: "We have recently been developing a brand-new simulation tool. The core is a revolutionary dimensionality reduction method for strongly nonlinear partial differential equations, so it can be applied to multi-physics simulations under strong coupling. Although it is currently only a semi-finished product , but the more commonly used mechanical and thermal coupling modules have been almost developed. More importantly, I have specially reserved a highly customizable interface. Professionals like you can flexibly call your own numerical simulation methods according to your needs, and they can also be jointly applied with our preset algorithms..." Since this software will continue to operate in the future and compete with similar foreign competitors, the more users, the better. Its not just a matter of gains from market share. The information and data fed back by a large number of users is a huge wealth in itself. ? Considering that most domestic enterprises are still slightly deficient in R&D capabilities, research institutes and universities are obviously the focus of Chang Haonans next promotion. Using administrative orders to force promotion is of course an option, but it is also a double-edged sword. Besides, its not necessary. ?The advantage is too great, even face A can win. It really has such a function... ?Rui Xiaoting watched in disbelief as Chang Haonan opened a rather crude dialog box. Uh... we will provide a more complete graphical interactive interface in the future. Currently, because program encapsulation has not yet been implemented, we can only use command line statements for the time being. Chang Haonan looked at the "Are you kidding me" look from the graduate student next to him and quickly explained again. So...what should we do next? I have also brought the calculation code related to the discrete-time transfer matrix method of multi-body systems..." In the computer field, many things are actually counter-intuitive. The joint application of multiple methods is actually very simple on paper, and the complexity of the idea itself does not exceed the force problem in high school physics. It is to separate the research objects according to different characteristics, use appropriate methods to establish equations for each part, and finally solve them jointly. However, since commercial numerical analysis software itself was just in its infancy, in the late 1990s, no one had thought of adding it as a complete function. Its very simple, let me demonstrate it, and then you can try it yourself. Chang Haonan, who came back from the third decade of the 21st century, knows very well that at this time, he must not do everything himself, and do it all by himself. Instead, he must let users gain participation. Just take ?Chang Haonan thought for a moment and quickly continued: Take the support arm of the rocket launcher tube as an example. "The physical model of this system should be a small deformation Euler-Bernoulli beam 1, smooth column hinge 2, rigid body beam 3, smooth column hinge 4 and rigid body beam 5, among which No. 3 and No. 5 can be compared with No. 1 Large displacement movement occurs, although the structure is simple, it just meets the requirements. " "Next, just divide the beam into four units to establish the finite element motion equation, and then combine it with the multi-body system... that is your new method to solve the system motion rules, and at the same time, use the classic fourth-order Runge-Kutt method to integrate the overall dynamics of the system The system can also obtain the system motion law, which is four independent equations, combined with the boundary conditions of the rigid beam 5..." ? ? ? "Finally, as long as these 11 algebraic equations are solved simultaneously, the dynamic response of the system can be obtained. " At the same time as he said this, Chang Haonan knocked on the Enter button in a very elegant manner. In fact, this step can also be done with a mouse click, but it is said that using the keyboard entirely can make the operator look more professional. At least thats how most TV dramas involving hackers will play out in the future. Although it can only be operated through the command line, for him, a core developer, it is still easy to use. The calculation results are quickly displayed on the screen in the form of numerical points. The same applies here. It is still a semi-finished product at present, so the data can only be output in character form. When it reaches the full version, it will be able to directly provide curve graphs. Of course, if data is needed, it can also be exported. ?In the field of human-computer interaction, Chang Haonan, who has led the thinking for more than 20 years, is not just boasting. He can definitely beat his software engineering colleagues around the world. Rui Xiaoting, who was watching from behind, also nodded repeatedly. He is actually 41 years old this year, slightly older than Chang Haonan expected. Researchers of this age have experienced situations where they need to write their own applications. Moreover, Chang Haonan has to spend time entering characters after each sentence he explains, which is not the case. Keep up with the train of thought. It was just the graduate student who came with me who was suffering. At the beginning, I could still understand the two steps, but later on, I gradually developed towards listening to the Book of Heaven. ?Looking to the side, I found that my teacher was concentrating on it, so I had to sigh and thought about asking again when I got back. How about...Ill give it a try? ?Looking at the rows of data displayed one after another on the screen, Rui Xiaoting felt his hands itching unbearably. Chang Haonan looked at the other party''s expression and was almost certain that he should be able to get his first customer. Okay, if you have anything you dont understand, you can ask me. Then he stood up and gave his seat to the other party. Then he added: "By the way, I just listed the six-degree-of-freedom rocket external ballistic equations for you. You can just call them when the time comes." "Um?" ?Rui Xiaoting briefly recalled it and realized that he didnt seem to have missed any steps just now: "Where?" Wait a minute, it will be out soon. As soon as Chang Haonan finished speaking, a long list of equations was displayed on the screen. ifier ?Rui Xiaoting, who was sitting in front of the computer, felt that his hands were a little numb. ?His discrete-time transfer matrix method for multi-body systems is relatively special in principle, so it is not necessary to establish a system of overall system dynamics equations. But it is still needed when used in conjunction with other dynamic systems. ?This wave can be said to have saved a lot of work without anyone noticing. He felt defeated. So, Director Chang. Rui Xiaoting turned his head and asked: If I want to continue using it after I go back, how can I obtain the permission to use this software? (End of this chapter) Chapter 374 Box type long-range rocket launcher Chapter 374 Box-type long-range rocket launcher Chang Haonan cleared his throat: About next month, the software will officially release the first trial version. At that time, as long as you submit a trial application through official channels, you will be eligible to use the trial version. In the public testing phase, the software is completely free, but after the official version is released, annual licensing fees will be charged based on different user levels and versions. ?This approach has been proven effective by countless Internet companies in the future. Use low prices or free services to cultivate user habits first, and then start charging after capturing enough market share. Although Chang Haonan does not develop software to make quick money from leeks, the principle is similar after all. Then this official channel The routines that people of this era have seen are relatively simple, and Rui Xiaoting was naturally attracted to them. ? He ??even directly ignored the part about "authorization fees" that followed. Besides, he didnt pay for it himself anyway. When you go back, I can give you an activation code. When the trial version comes out, I will send you a box of CDs by mail. Just enter the activation code and you can use it. As for the subsequent authorization, as long as each organization pays a fee, then everyone in the entire organization can use it, just like the currently commonly used AutoCAD. The main users of commercial software are not individuals. The authorization threshold does not lie in the act of obtaining the software itself, but in the commercial activities carried out by users using the software. Therefore, there is basically no need to consider the issue of piracy. In other words, for example, if Jinling University of Science and Technology purchased a license from Chang Haonan, then its main research and commercial activities can legally use this software. As to the specifics of whether the software installed in each person''s computer is genuine or pirated. Not important. ?? And having said that, it is only 1997, and it will take another two years for Judong to allow pirated versions of Windows and Office to spread around the world in order to occupy the market. The domestic software copyright situation is actually much better than it was at the beginning of the 21st century. In addition, I know that there are many universities and research institutes in Jinling. If you can recommend our software to other brother units, you can also get corresponding discounts when getting licenses in the future. In fact, since Chang Haonan is currently leading a project team, which is still a scientific research institution, no specific sales principles have been determined. ?However, this did not stop him from continuing to refer to the promotion model of Internet products in his impression. ??Rui Xiaoting looked at Chang Haonan with a sincere face next to him, and felt that something was not right. But after thinking about it, I always feel that I will not suffer any loss: Okay, let me try it first. Soon, under the guidance of Chang Haonan, a new model was imported into the computer. It seems completely different from Guardian 1 Chang Haonan said as he looked at the six rectangular directional tubes on an 8*8 chassis launch vehicle in front of him. Even a pure layman can see the huge difference between the two. And why do you look more like a missile... After all, technology has advanced. Rui Xiaoting was making final fine-tuning on the model as he spoke: "The previous chassis was selected in 1992. No matter the load-bearing capacity, off-road performance or stability, it was not very satisfactory. Wanshan Special Vehicle is currently cooperating with the Minsk Automobile Factory and plans to start local production next year. For the transportation-erector-launcher chassis, we temporarily modeled it using the parameters of MAZ543 and then fine-tuned it later. ??Although the elastic support theory no longer requires the vehicle body to maintain absolute rigidity during the launch process, for the sake of firepower density and vehicle body life, the vibration amplitude and period cannot be too exaggerated. "As for the directional tube... In fact, this can be regarded as a launch box. The two launch boxes are a set, and each vehicle is equipped with three sets. This way, after the shooting, you don''t have to bother to reload, and put the new launch box prepared in advance. You can continue to fire the second round. According to our calculations, this can shorten the fire interval between the two rounds from about 30 minutes to less than 10 minutes. However, this function can only be realized by purchasing our specially designed reloading crane at the same time. ?Chang Haonan suddenly felt that he had met his opponent. You still know a lot about bundling sales... Then he continued to add: Of course, if the customer is really short of money, they can also choose to use the original Iron Horse XC2200 chassis and the same directional tube as the Defender 1. The 8*8 TEL chassis is quite expensive. For most equipment using this type of chassis, the cost of the vehicle will generally account for half or more of the price of the entire system. And except for a few countries such as Damao or China, it is true that not all users have a particularly persistent pursuit of cross-country capabilities for long-range fire support. ?While the two were chatting, Rui Xiaoting had already completed the debugging and inspection of the model quickly. Well, what should I do next, copy the model, or draw it again? When talking about redrawing, his eyes glanced at the graduate student behind him who came with him. Bringing one more person here is not just for carrying bags. The latter only felt a chill spreading from the soles of his feet. Drawing a picture of this level of complexity on the spot No, you can just add a statement to call the program file in front. We have reserved interfaces for all common modeling software engineering files on the market, including SolidWorks, and you can directly import data. ?Chang Haonan still didnt know that his image was close to the savior in the heart of someone next to him. Is it so convenient? ?Rui Xiaoting quickly entered a sentence as instructed. As expected, a message indicating that the data was successfully called appeared on the screen. ?A few seconds later, a new dialog box popped up, which contained the modeling diagram of the new rocket launcher. In this era when even hardware versatility is poor, almost no one has considered the versatility of different software ?There are actually no technical obstacles, but in order to seize the market exclusively, some software developers will deliberately make their file formats different from similar competing products. It was **** for the engineering staff. ??Even if the underlying parametric logic is completely consistent, calling the design drawing from one software to another requires a rather complicated transcoding process. ? Even a very skilled person may take several hours to complete. If your luck is even worse, you may even have to redraw it. Now, he has completed all this in less than 5 minutes. The next step should be gridding As the progress continued, Rui Xiaoting became more and more proficient in operation. Uhwhy are there so many options here? A command line interface pops up on the screen, with 5 options appearing. The key is that he cant understand any of them. Oh, these are the 5 different meshing algorithms we have preset. Chang Haonan explained: This model of yours is a bit big, and it may take up memory to generate at one time. You can split the directional tube, bogie and chassis into three parts and generate them separately, and then choose the second one. Can I just break it into three parts? ?Rui Xiaotings hands on the keyboard shook, leaving several irregular characters on the screen. You must know that when he did finite element analysis before, this step even required separately generating subdivided structures such as hydraulic outriggers, girders, and subframes. "If you find it troublesome, maybe... you can combine the bogie and the directional tube." ?Chang Haonan said in an uncertain tone. No, thats not what I meant Rui Xiaoting''s whole body was numb. It is easy to go from frugality to luxury, but it is difficult to go from luxury to frugality. ?Even if the software in front of you does not even have a serious graphical interface, the operation still needs to be carried out through the command line. ?But when I think about how I have to continue to suffer the torture of ABAQUS after I go back this time, I feel that the world is dark. ?So he made up his mind that when he returned to school, he would get the principal to get the authorization for this thing at all costs. What is money without money? Vulgar! (End of this chapter) Chapter 375 Eagle flying out of the mountains Chapter 375 The Eagle Flying from the Mountains After calming down a little, Rui Xiaoting followed Chang Haonan''s suggestion and divided the entire model into three parts, selected method 2 and hit the Enter key. ?Looking at the program execution log flashing across the screen, he breathed a sigh of relief and leaned back in his chair. Everything that happened this morning went much smoother than expected. ?Even makes people feel a slight sense of unreality. Just in time, the sunshine approaching noon shone in from the window and reflected on the faces of several people. Rui Xiaoting raised his head and looked at the clock on the wall next to him ?According to his experience, more than half of the computers in the school computer room display the UNIXTIME epoch time, which is January 1, 1970. Its a quarter past ten in the morning, just before dinner time. Director Chang, do you want to go out for a meal together? He asked Chang Haonan next to him: You have been so helpful this time, so you have to give me a chance to express my gratitude. When I came from the airport, I saw a nice restaurant on the road, and I came to treat you. Originally, Rui Xiaoting applied to the school for a mid-term business trip of 10-15 days before coming to the capital, and he specifically informed the finance department that it might be extended further, but judging from the current efficiency, it may not even be used for 10 days. Come on. Eat... dont be in a hurry, lets get down to business first. It wont be too late to go there later when you can run the full gun firing dynamics simulation. Of course we have to do business, but if we are idle right now, we are just idle. No matter how we get gridded... At this point, Rui Xiaoting''s voice stopped abruptly. He noticed that the estimate of the number of meshes had been completed on the screen and the calculation of the coarse mesh had begun. According to his experience, this preparation process alone often takes one to two hours or even longer. And this has just passed... five minutes? If estimated on a scale, it may take 30-40 minutes to complete the entire gridding process. Its really not enough to go out for a meal. ?But Rui Xiaoting is different now than before. He evolved. ?Rui Xiaoting made up his mind that he could no longer be surprised by trivial things. Otherwise, it would look like Grandma Liu entering the Grand View Garden. He himself doesn''t care, the main thing is that he can''t embarrass the school. ?Chang Haonan has already achieved his goal of Amway and did not continue to speak. ?However, in this tacit silence, there was a voice that seemed extremely harsh: Teacher Rui, why is the grid progress so fast? ??The graduate student who had been in a state of confusion just now finally came to a part that he could fully understand. Then he sighed like this almost subconsciously. ?For a moment, Rui Xiaoting regretted that in order not to delay the progress of the project, he did not bring over the most stable old doctor in the research team. Half an hour later, almost the same as the time Rui Xiaoting had just estimated, the program gave a prompt that "grid formation has been completed". Then... we can directly simulate the whole car, right? To be on the safe side, he made an additional confirmation. "That''s right, and I just deduced the multi-body... multi-body system discrete time transfer matrix method you imported. It should be used for natural frequency analysis of linear time-varying control systems. It just so happens that my software supports forced continuous iteration function, so you can even directly simulate the overall situation when the entire vehicle fires continuously, without having to calculate each shot individually. Multi-barreled rockets are used as continuous-fire weapons. During the launch process, the contact stiffness between the ground and the tire, as well as the mass and distribution of the pitching body, change with the number of rockets on the cradle. In particular, the mass of rockets is relatively large, and the mass and distribution of rocket launchers have changed significantly compared with empty loads and full loads. The impact of mass changes on the dynamic response of multiple launch rockets must be considered. In addition, for a weapon system under the elastic support theory, when the next round is fired, the vibration caused by the previous round has not completely stopped, which is equivalent to adding a new vibration to the original vibration characteristics. Characteristics, the further back the projectile sequence is, the greater the impact will be. Therefore, there will be a slight difference in the time interval between each two launches of the rocket launcher. There are also strict regulations on the launch sequence, which is not based on the directional tube. Arrange in order. In order to ensure the accuracy of the simulation results, it is often necessary to manually determine and calibrate the results after the calculation of a launch, and then iterate into the next launch. Chang Haonan solved this pain point. But for Rui Xiaoting, his first concern is another place: Director Chang, I wonder when you deduced this result? Just kidding, the three of them stayed together this morning. Just now while I was waiting for gridding, half an hour was enough to figure out something. But why cant I figure it out ??The graduate student next to him blurted out, but the second half of the sentence was choked back by his mentor''s knife-like gaze. ?Rui Xiaoting said to himself that not only can you not figure it out, but I cant figure it out without using a computer to calculate it. Dont embarrass our school... It wasnt until the simulation process officially started that he gradually came back to his senses. For long-range rocket launchers, due to the limited number of directional tubes, the advantage of fully automatic iterative calculation is actually not great. At most, there is no need to send someone to watch in front of the computer. But as the cradle of almost all artillery systems in the country, Jinling University of Science and Technology has undertaken far more research and development projects than this. ? If nothing else, the small-caliber rapid-fire anti-aircraft gun currently under development has a rate of fire of up to 1,100 rounds per minute. If you manually iterate one by one, even typing out sparks on the keyboard will be almost meaningless. As for the multi-barreled close-in defense guns that the Navy urgently needs... Ahem. ?Thinking of this, Rui Xiaoting took out his notebook from his pocket, tore out a page from it, and quickly wrote down his office phone number and address: Chang Gong, Ill leave you a contact information. When the trial version comes out, be sure to notify me as soon as possible. ?He made up his mind that he couldn''t just be embarrassed here, but he also had to let others experience the feeling of a broken heart when he returned. Chang Haonan took it, folded it and stuffed it into his wallet: No problem, I guarantee that your school will be one of the first trial customers. If necessary, I can also provide a video tutorial CD. Thank you very much. ?Rui Xiaoting still looks calm and calm on the surface: In addition, I think that after we get the trial version, we can hold a series of special lectures for Jinlings brother universities, which should have a good promotion effect. At the same time, in the Yunma factory in AS City, Guizhou Province. ? Sun Huizhong is checking the information for the last time before departure on the laptop in front of him. Behind him, parked was a full-size wooden model that had just been completed. Although other sister units have increasingly begun to increase the proportion of digital work in the design and even manufacturing processes, for Guihang, which has relatively limited conditions, many tasks still have to be completed using old methods. ?For example, they currently only have limited aerodynamic computing capabilities, so if they want to test the installation of various equipment inside the aircraft, they still have to build a wooden prototype. ??The aerospace engineers who have joined their factory in recent years have basically improved rapidly in terms of their ability to design aircraft, and their carpentry skills have basically improved. ? Of course, it was not without its benefits. The furniture produced by Yunma Factory helped them get through the most difficult period from the late 1980s to the early 1990s. Compared with the JJ-7 originally produced by Guihang Airlines, this aircraft is much more advanced in terms of appearance. At least it is no longer the nose air intake. ? And thanks to the valuable nose space being freed up, the cockpit space has also been greatly released, especially the forward view of the rear seat trainer, which was so good that the pilots responsible for test-flying the JJ-7 in the factory repeatedly praised it. ?At this time, another man ran up to Sun Huizhong panting, took out two brown paper envelopes from his arms and handed them to him: The thick one is your travel expenses, and the thin one is the photo of the model. ? Lin Haijun, general manager of Guihang Airlines. Although his name contains the word "Navy", he has never seen the sea in his life. After graduating from Bingcheng Engineering University in his early years, just as the third-line construction was in full swing, he was assigned to the mountains of Qian Province. So thick? It doesnt cost so much, right? ? Sun Huizhong said as he opened a crack and took a look, only to find that there were a lot of change of 10 yuan or even 5 yuan inside. It feels very thick, but actually it doesnt cost much. The factory has finished distributing everyones basic living allowance this month, and there is really not much money left in the account. The visitor wiped the sweat from running on his forehead and looked a little embarrassed: Fortunately, the county is quite supportive of us and gave us some money, but its just a little too much change... Sun Huizhong''s face darkened after hearing this answer. ?His trip was almost responsible for the life and death of the entire group. If Guihang collapses, the cadres like them may be assigned to other places, and the worst they can do is be on the bench. But the workers in the factory, as well as the many industries surrounding Guihang in several surrounding counties and towns, are obviously It''s all bad and bad. The economy of Guizhou Province is not very developed to begin with, and I am afraid it cannot withstand such hardships. ?Lin Haijun looked at the aircraft design drawings on the computer screen in front of Sun Huizhong, and always felt that something was missing. ??If this model is successfully approved, then according to the naming rules, it should be named Coach 9. But in the design stage of the manufacturer, it usually has its own internal code name. The current one is FTC2000. means a combat training aircraft produced by China and geared towards the 2000s. Future export models will also be called this. But this cold numerical number still seems to be almost meaningless. Let me tell you, Lao Sun, the design we come up with should have a nicer name, right? "Um" ?Sun Huizhong put down the mouse, lowered his head and walked back and forth for a few times. This plane took off from our mountain, so lets call it Mountain Eagle. (End of this chapter) Chapter 376 China Aerospace Engine Industry Conference! Chapter 376 China Aviation Engine Industry Conference! ??It was already two days later when Chang Haonan sent the satisfied Rui Xiaoting away. ?Of course, compared with the latters previous estimates, this can be called a great speed. You must know that the artillery equipment models that Nanjing University of Technology is currently responsible for include but are not limited to a certain type of self-propelled artillery, a certain type of long-range rocket launcher, a certain type of small-caliber self-propelled anti-aircraft gun, a certain type of wheeled anti-tank gun, and a certain type of wheeled grenade gun ?Although artillery equipment may not sound too fancy, it is actually the backbone of army support units, similar to the status of tanks in assault units. However, with limited total investment in scientific research, it is almost impossible to promote so many models at the same time. Each research group naturally hopes to obtain more resources for the projects it is responsible for. As the director of the institute, Rui Xiaoting has been troubled by this kind of thing in recent years. But now, he vaguely felt that a door to a new world was standing in front of him. According to Chang Haonan''s timetable, the next step is to wait for Guizhou Airlines to send people over to perfect the design of the new advanced trainer aircraft. Because Rui Xiaoting jumped in the queue, the design idea of ??the new software has been proven correct, and there are at least no major problems with the work completed so far. Therefore, the higher education machine project does not have much value to Chang Haonan, and it is mainly based on the hope. Hold on to the spirit of helping our brother units. ?So taking advantage of his free time, he gradually turned his attention to the two projects that he had previously listed as priorities. That is, heavy-duty die forging presses, and third-generation turbofan engines. ??There has been no specific action before because sharpening the knife does not waste time chopping wood. Now the tools he has at hand have gradually matured and have passed relatively simple project verification. So, its time to try the knife. As for which one to choose first, there is nothing to worry about. Considering that the situation on Jiang Zhong''s side has not yet completely settled, it is not suitable to make too much noise. The natural thing is to start the aviation development first. After much thought and chatting with academicians Du Yishan and Liu Zhenxiang, Chang Haonan finally decided to call Ding Gaoheng. ??Had it been put aside before, even if he had this idea, the most he could do was contact the 606 Institute or the 410 Factory that he was familiar with, and then report it step by step. ?But now, the situation is very different. Although it is still unable to directly influence major policies, it still has some say in some technical directions in the aviation industry. ?Now Chang Haonan''s phone calls can even be made directly to Ding Gaoheng''s office without going through a transfer. The ringback tone only rang twice before the phone was picked up. "Xiao Chang, you called me suddenly early in the morning. What good news do you have?" ?Although he has been quite busy recently, Ding Gaoheng''s voice couldn''t help but relax after seeing that the caller was Chang Haonan. Most of the time, this means something happy has happened. I may disappoint Director Ding. There is no good news this time, but it will cause you some trouble. Oh? What are the instructions from our director? Ding Gaoheng asked in a slightly humorous tone. ?Of course, Chang Haonan couldnt really follow the other persons joke, but replied solemnly: I would like to ask for your approval to convene an aerospace engine industry conference in the near future that will only be attended by people within the aviation industry system. There was silence on the other side of the phone. It was obvious that Ding Gaoheng was also evaluating the matter. Chang Haonan has only submitted one of the two previous reports he wrote. Therefore, no one else knows the details of the idea of ??developing a third-generation high-thrust turbofan engine. Even Du Yishan and Liu Zhenxiang only have a rough understanding of some of the technical directions that Chang Haonan plans to focus on.?????How about being more specific? A few seconds later, Ding Gaoheng spoke again: "In the aviation system, there are many serious research institutes engaged in aviation power. During the third-line construction, at least one was assigned to each region. In addition to Shengjing, which is currently relatively powerful, Zhucheng, Rongcheng, and Jianning Places such as Bingcheng and Bingcheng all have certain industrial scales. How big are you planning to make this event? " The scale doesnt need to be very big, but I hope every company can send a representative. ?Chang Haonan took a deep breath, and then answered decisively. If he just wanted to get the turbofan 10 out, he wouldn''t have to spend so much effort. Just contact Shengjing directly and coordinate the work. At most, communicate with Fucheng 624 Office. Its not that he looks down on his brother units. Its actually that Chinas aviation power research and development is weak at this time. The few combat-effective forces are in Shengjing. When it comes to projects like the third-generation promotion, there is not much help that others can provide. , but also very limited. The reason why he wanted to hold this meeting was because he hoped to integrate the originally dispersed aviation development research and development forces. A single beautiful branch is not spring, but a hundred flowers blooming together fills the garden. Although China is not very strong in aircraft design and manufacturing, it still has some foundation. As long as Chang Haonan helps in some key technical aspects, even an OEM with relatively weak technology like Guizhou Airlines can barely produce a senior instructor. The opportunity is coming. As long as there are models under development, there is a way to quickly train the talent team. ?For example, Lin Shikuan, brought out by Chang Haonan and Yao Mengna, is now almost becoming a big brother in the entire field of digital design and manufacturing in China. ??He doesn''t need to worry about it at all. However, in the field of aviation power, the situation is much more serious. It is no exaggeration to say that, except for 606 Institute/410 Factory and this pair, which barely have some experience in independent research and development (most of which are failures), the rest are really incapable of bringing... It can only be taught step by step. But now Chang Haonan has more than ten times more projects than a year ago, and he simply does not have enough energy to travel around to provide one-on-one tutoring in various places. There are not that many projects for everyone to practice separately. ?The official launch of Turbofan 10 alone will eat up more than half of the annual research budget in the field of aviation power. ?Furthermore, the aviation engine has not yet become independent, and theoretically it still needs to be used as a supporting device for the host model before it can be launched. In short, in the past one or two years, the Turbofan 10 should be the only aircraft engine model that starts from scratch. It is also the only seedling for practicing aviation power systems. It is best to allow other units to also have the opportunity to participate. Come in to learn from experience, and at the same time apply the experience to the improvement of existing models, and gradually accumulate scientific research strength. ?For example, Haojings turbofan 9, Jiannings turboprop 6 and turboshaft 8, and Bingchengs turboshaft 5 can all be beneficiaries of this process. ?After these achievements are gradually fed back to the military construction and the development of the aviation industry, the aviation power system will be able to have some confidence when it comes to "independently developing engines independent of aircraft models". If every family sends people to Beijing, the news will actually be quite big... The things Ding Gaoheng on the other end of the phone had to consider were obviously more macroscopic. In a place like Beijing, there are many non-technical factors that need to be considered. Hearing that the other party was hesitant about the meeting location, Chang Haonan quickly explained: Director Ding, this does not have to be opened in the capital, as long as you can approve it and arrange the venue. This shouldnt be a big problem. Ding Gaoheng also breathed a sigh of relief: "For more specific matters, come to the Science and Technology Commission for an interview. I will send a car to pick you up." (End of this chapter) Chapter 377 Concentrate your efforts and fight in the aviation development competition Chapter 377: Concentrate your strength for the aviation development battle Forty minutes later, Chang Haonan arrived at Ding Gaoheng''s office. ?Somewhat beyond his expectation, in addition to the latter himself, Liang Zhuoping, chairman of the Aviation Industry Corporation of China, was also there. Director Ding, Mr. Liang. Chang Haonan only met him once at the interview before participating in the August 3rd Project last year, but no matter what, he must still know the head of his own aviation industry. ?But it makes sense if you think about it carefully. After all, with his status, Ding Gaoheng cannot personally host a specific technical meeting. And Chang Haonan doesnt have that much energy to do administrative work. ?So when the conference is actually held, no matter where it is, Liang Zhuoping will definitely be responsible for the actual preparation work. Xiao Chang, sit down wherever you want. Ding Gaoheng is looking through a report in his hand. Judging from the cover, it seems to be about the aerospace engine industry. ?But Liang Zhuoping actually stood up and shook hands with Chang Haonan. Comrade Haonan, long time no see. On only the second meeting, the title has already changed. Although it sounds like there is not much difference, the meaning behind it is completely different. ?Liang Zhuoping can no longer regard Chang Haonan as a simple junior or subordinate. In fact, the former is also suffering in his heart at this time and cannot express it. You must know that when Chang Haonan was asked to participate in the August 3rd Project, he had contributed. But after all, I am not a professional technician, so I did not pay special attention to it later. After all, it was just in the beginning, and the frequency of the other partys name in the report on the August 3rd Project was not very high. As a result, by the time we realized something was wrong at the beginning of this year and finally reacted, it was already too late to try our best. Who would have thought that in only about half a year, people would directly build connections with Ding Gaoheng? ?So Liang Zhuoping felt a little embarrassed. In the field of scientific research, he is not an academician, nor is he even a leader such as a chief model engineer. Administratively, although he is the chairman of the Aviation Industry Corporation of China, the other party is not an employee of the Aviation Industry Corporation of China. Moreover, the relationship between him and Director Ding is unusual. It is not certain who can dominate whom. ?As for personal relationships, he is not like Yan Zhongcheng and Yang Fenghao, who took Chang Haonan with him when he first joined the 83rd Project. If you dont accompany me through the hard work, who will you be if I become successful? Liang Zhuoping still has this kind of self-knowledge. In short, the words "Comrade Xiao Chang" were stuck in my throat for a long time and I couldn''t say them out. Finally, I changed my name. ?Chang Haonan didn''t care about this. ?There is no harm in trying to equalize the status with Liang Zhuoping as much as possible. Its not that I have any opinion about this person. Rather, in his plan, in the future, all units responsible for aviation power under the Aviation Industry Corporation of China will be separated to establish a separate China Aviation Engine Group, which will inevitably affect Liang Zhuoping''s interests. ?Let the other party realize that they cannot fight against the general trend early, but can minimize the possibility of some unpleasantness when the time comes. Director Ding, after detailed research and consideration during this period, I have written a report on the development of the aero-engine industry. Please take a look. ?Chang Haonan took out a file bag from his bag and placed it on Ding Gaoheng''s desk. The latter picked up the file bag and paused in shock at the thickness of the contents inside, and then opened it quickly. Tell me briefly what you think about the aerospace engine industry conference. Chang Haonans report was mainly about technical feasibility demonstration and summarizing the development of domestic and foreign aerospace industry. It did not directly mention what was just said on the phone. I believe that the final shape of the turbojet 14 engine actually achieved the goal set by the high-promotion pre-research project in another form, which was to benchmark the F404 engine and provide technical reserves for my countrys self-developed turbofan engine. " The so-called high-promotion pre-research project was the first large-scale pre-research project organized and managed by system engineering in the aero-engine field launched in my country in 1980. After 15 years, a prototype was finally produced in January 1994. ??Although this prototype has achieved the converted flow rate target of 25kg/s on paper, in fact... In any case, in the project summary, the key part can only be written as training the talent team. This is also one of the many setbacks encountered in the process of promoting the third largest turbofan in my country. Its just that in todays timeline, the performance of the turbojet 14 is too inconsistent, and even reaches the level of the early F404 in some indicators, which is equivalent to giving this not very successful project a forcible respect. ??But in any case, this shows that we in China have figured out the second-generation engine. According to the general scientific research rules, it is time to develop the third-generation engine. After a pause, Chang Haonan continued: "It should be considered that the basic conditions for officially launching the 8-stage high-thrust turbofan engine project with a thrust-to-weight ratio are now in place. I hope to concentrate the research power of the entire aviation industry system, with the 606th Institute as the chief engineer unit, combined with the 624th Institute and Liming Institute Factory (Factory 410), jointly took the lead, and other units were responsible for assisting and participating, and they took down this hard nut in a relatively short period of time! "So, before the project is officially launched, I hope to bring together comrades from relevant units for a meeting. On the one hand, it is to unify their thoughts and make everyone realize that this is not sacrificing themselves to support brother units, but mutual benefit. Mutually beneficial, on the other hand, it is also a systematic introduction to the technological breakthroughs we have made in the turbojet 14 project in the past year, as well as some other impacts derived from it, which have given us some confidence in the aviation power field. " ?After hearing Chang Haonan''s statement, Liang Zhuoping, who was sitting on the sofa opposite, was so excited that he opened his mouth several times, but for a moment he didn''t know how to speak. ??He is actually familiar with the gameplay Chang Haonan mentioned. Its just a R&D competition. However, starting from the late 1980s, on the one hand, this approach was considered to have "backward" characteristics of the times. On the other hand, it was indeed too risky to sell the iron by selling the pot. Once it failed, the entire industry would be damaged. Therefore, gradually Never mentioned again. There is no way. As the saying goes, once bitten by a snake, you will be afraid of the rope for ten years. China''s aviation research has suffered too much in this area in the past, and it is still at the stage where overcorrection must be made. ??If someone else came up with this kind of plan, I''m afraid it wouldn''t be seriously considered. But the person standing here today is Chang Haonan. So Ding Gaoheng was flipping through the report in his hand attentively, without showing any inclination. ?Although Liang Zhuopings first reaction was that it was a bit ridiculous, when he calmed down and thought about it carefully, he couldnt say anything against it When he came today, he also brought a report. The content is a summary of the development of China''s aviation development industry in the past few years. You dont know if you dont summarize them, but you will be shocked if you summarize them. In fact, until this time last year, Turbojet 14 was still on the verge of a dangerous situation. After a second-class accident occurred during a test flight, Chang Haonan, who had just completed the overall design improvement work of the J-8C at that time, temporarily joined the research team of the 606 Institute. ? It was from that time that the entire project quickly came back to life in a completely new way. The only variable between before and after is Chang Haonan. There is no doubt that such a number one person who wants to concentrate on developing turbofan 10 must still be treated with caution. ??Besides, as the head of China Aviation Industry, Liang Zhuoping himself also hopes to quickly develop aviation power that is in line with the international advanced level. In the past, I just didnt dare to think about it. After all, if something goes wrong, he will be the first to take the blame. Now What if it succeeds? After a long time, Ding Gaoheng, who read the report to the end, finally raised his head. Xiao Chang, before making a decision, I only have one question to ask. I have estimated that this engine battle will probably account for about 80% of the funding for the aviation power field in the next few years. Even taking into account the increase in funding in the next two years, it will not be less than 60%. Have you considered the risks of this? As the director of the Science and Technology Commission in charge of military scientific research and production, Ding Gaoheng must look at the overall situation. . The actual situation of Huaxia is that its financial resources are very thin and it really cannot afford any risks, so it must consider the error tolerance rate. Thinked about it. Thats why I just said that this is not about sacrificing oneself to support brother units, but about mutual benefit. ?Chang Haonan nodded solemnly. He did not reply with words such as, "There will definitely be no risk as long as I am here." ?Although he did feel that nothing would go wrong, that was not the attitude that an engineering technician should have. Even if you are 100% sure, you must be rigorous and responsible. I will divide the Turbofan 10 project into several clear task modules. Each module contains a series of relatively complete technical systems. Each time a small stage is completed, other brother factories participating in the project can obtain systematic knowledge from it. rather than piecemeal knowledge and experience, thereby feeding back their improvement work on existing engine models. "Although the total investment of the entire project is definitely huge, in actual operation, it is actually invested in stages. After seeing the results, it is invested in the next stage, rather than a one-time deal. In this way, both the scientific researchers involved in the project and the Our superior units have some confidence in their hearts. This is also Chang Haonans consistent approach when working on projects after his rebirth. In fact, it is easy to understand if the parent unit is regarded as an investor and the R&D project is regarded as a start-up enterprise. ? New companies can lose money, but you have to make investors see hope - your superior units can continue to invest in you, but you have to be able to continuously provide some tangible results. For most decision-makers who do not have professional technical backgrounds, "the aviation propulsion technology verification plan has achieved initial results, and significant progress has been made in processing, manufacturing and test equipment construction..." This statement is too vague. But if you directly take out a new engine, even if it is just an improvement and upgrade of the old model, the persuasiveness will be completely different. Ding Gaoheng naturally understands this. ? Its just that for Chinas aerospace development industry in the past, even phased results were not so easy to achieve... ?However, now that Chang Haonan is speaking out with such thoughts, it at least shows that he has carefully considered all possibilities, rather than making a decision made in a rush of passion. Zhuoping, I think this meeting will be held in Linyu, how about it? (End of this chapter) Chapter 378 The road to high-performance aviation! Chapter 378 The Road to High-Performance Aviation Engine! A question that stood out suddenly made Liang Zhuoping stunned for a moment. Even though he had just guessed that the aviation industry conference that Chang Haonan applied for would definitely be held, would the decision-making speed be too fast? ?But wanting to think about it, he quickly nodded; "Of course Linyu can. I will start arranging the relevant preparations for the meeting after I return." Just kidding, the leader has put forward all his ideas and then asked for your opinion. Can you still say that I disagree? You dont agree, but some people agree. "In addition, Xiao Chang, Director Huai is currently negotiating according to the strategy you proposed last time, and the progress is quite smooth. If the D436T1 engine can be introduced into our country for production simultaneously, it will also be a boost to the development of the aviation power field. , so I think we can wait a little longer for the specific date of this meeting. After getting Liang Zhuoping''s reply, Ding Gaoheng turned to Chang Haonan and said: But dont worry, it wont take long. Is it so smooth? ??The strategy of killing three people with two peaches was also based on the negotiation process for the introduction of high-speed rail in the previous life, but even Chang Haonan himself did not expect that the effect would be so immediate. "Yes, according to the feedback from Lao Huai after his visit to Zaporozhye two days ago, the situation in Ermao is worse than we previously expected, so Ivchenko-Progress Company is facing a completely The two manufacturing plants in Ufa and Moscow also made a small symbolic concession. At present, there is no fundamental conflict between the two parties, and only some details need to be determined. " Ding Gaoheng nodded and replied: "In addition, part of the reason is that this engine is also very important for many of their models under development, such as Antonov''s An-72, Beriev''s Be-200 and Yakovlev''s Yak 42M. We need it, so we hope to use the funds provided when we introduced it to further improve it. In fact, after receiving a series of huge stimulations from China, especially after learning that China and the European Aviation Administration had successfully signed an airworthiness mutual recognition agreement, Maos thinking quickly completed its self-exculpation Many people have realized that, judging from this development trend, some technologies that are relatively valuable now may be conquered by others in a few years, and the risk of continuing to raise prices is too high. ??On the contrary, it is better to take advantage of the current leading advantage, earn visible money as soon as possible, and then carry out product iterations. Persistence may last longer. So since the past few months, negotiations of similar nature have become much smoother than before. For Chang Haonan, the value of the D436T1 engine itself is secondary, and its D36 core engine is particularly worth understanding and continuing to develop. ??A series of classic aviation products from the Ivchenko Design Bureau, such as the D18T used by the An-124, the D136 used by the Mi-26, and the D27 used by the An-70, are all derived from this. ?If it can be obtained, its status in Chinas aviation power field in the future will not even be inferior to that of the core aircraft of the Turbofan 10. He is already thinking about how to incorporate it into his plans: Its really worth waiting. In the future, we can even consider using our own technology to continue to support upgrades, and its core engine has great potential. In the future, if conditions permit, we can continue to develop other types of thrust engines on this basis. This sentence is indeed very heroic. Prior to this, the only aircraft engine model that was independently improved by China and successfully achieved mass production was the Turbojet 7/ Turbojet 13, which was copied from the R11F-300 and slightly upgraded along the way. It is used in almost all of the current The aviation power of domestically produced main fighter aircraft. ?But in the final analysis, it was only the technology of the Soviet Union in the early 1950s. It would not be difficult to make some minor technological improvements thirty or forty years later. Even in the mid-1990s, the D436 was a model that was not too backward, and in some aspects it was even better than similar Western products. ?The three-rotor structure has never been seen before in China. ? Judging from past experience, even if such a model is only domestically produced, it will probably take a lot of trouble. ?But since it was Chang Haonan who said this... Ding Gaoheng still secretly raised some expectations in his heart. "Aviation power has been the most important factor restricting the development of our aviation industry in the past few decades. If Comrade Haonan can tackle this problem this time, the turbofan 10, a third-generation engine with a thrust-weight ratio of 8, will be tackled. , our two types of domestically produced third-generation fighter jets will truly have no worries.Perhaps inspired by Chang Haonans confidence, Liang Zhuoping next to him couldnt help but think about the situation after the new engine was finalized: Even if we look at the entire industrial history of China, this is something worth writing about. Although he had not had much contact with Chang Haonan in the past and did not intuitively feel his abilities, a strong intuition still made him decide to set up a special preparatory group after returning, in addition to being responsible for the logistics and administrative work related to the conference. , and more importantly, keep some files, pictures and video records. Liang Zhuoping has a hunch that these things may become very important historical materials in the future. However, he still completely underestimated Chang Haonans goal: More than just power for third-generation fighter jets. The latter shook his head slightly: This time, Director Ding is asked to come forward and gather all the strength across the country. My further idea is to use this opportunity to establish a systematic development plan for the aero-engine industry. In the past, our aviation engine research, including even the newly finalized turbojet 14, was technically very isolated regardless of its performance. The technical connection between different types of aircraft engines was very weak. Projects almost have to be reinvented from scratch, so the efficiency is naturally not high. In the past, we had a small number of main engine models, so we could tolerate this, but in the future, as the types of our aviation products increase, we will also have higher requirements for the diversity of aviation power. Speaking of this, Chang Haonan stretched out his hand and started counting one by one: "Even if we ignore the situation of civil aviation for the time being and only count military weapons and equipment, then two third-generation fighter jets require afterburner thrust of 12 to 13 tons, small bypass ratio turbofan engines, bombers and transport aircraft require thrust. 13-15 ton high bypass ratio turbofan engines, new training aircraft requiring afterburner thrust of 7-8 tons of medium-sized turbofans, large unmanned aerial vehicles requiring 4-5 tons of thrust without afterburner models, cruise The missile must use a small turbojet or turbofan with a thrust of less than one ton..." ?Chang Haonans inventory made Liang Zhuoping a little overwhelmed. ? Many of these models are not even projects, let alone projects, and we dont even have ideas yet. But the latter did not open his mouth to refute Doesnt he want to not have so many models? How can it be? Is it because you didnt have the ability to know in the past? ?Who in charge of the aviation industry doesnt want to have whatever they want? ? So even though Liang Zhuoping was a little bit embarrassed in his heart at the beginning, in the end he was attracted by the bright future described by Chang Haonan. So my idea is to establish a core model spectrum sequence including 4-6 levels, converted flow rates from 5kg/s to 25kg/s, and cycle power ranging from 1MW to 20MW, which is enough to derive the thrust range coverage. Various engine models ranging from 200 kilograms to 25 tons, and taking into account the different solutions of single, double and four engines, can fully meet the power requirements of most aircraft in the next 20-30 years. "With such a core aircraft system, when a new aircraft is needed, we don''t have to start from scratch like in the past, but only need to make small-scale modifications based on existing models, which will consume a lot of time and capital costs. reduce!" ? Ding Gaoheng and Liang Zhuoping were both silent. The amount of information is relatively large and takes some time to digest. ??This kind of thing is called painting a pie if you have low EQ, and drawing a grand blueprint if you have high EQ. It mainly depends on who specifically said it. As for Chang Haonan specifically, he is naturally more inclined to the latter situation. Im afraid this process still needs to be carried out in stages, right? After a long time, Liang Zhuoping asked tentatively. "Of course, the current plan is to first develop a core machine with a flow rate of 25kg/s and a power level of 20MW. In addition to the turbofan 10, a high-bypass ratio model for use on large aircraft can also be derived to solve the problem. Our most pressing need right now. ?Chang Haonan is also a down-to-earth person after all. ??If five or six models were to go hand in hand, even he wouldn''t be able to handle it. (End of this chapter) Chapter 379 The brand-new JJ9 Chapter 379 A brand-new annihilation of religion 9 Chang Haonans plan for the aviation power development route was not surprisingly recognized by Ding Gaoheng. ?The preparations for the Aviation Industry Conference have begun in full swing. ?However, after all, this kind of matter concerns almost all relevant units across the country. Naturally, it is impossible to notify today and convene tomorrow like a department meeting. Twenty days to a month of preparation are considered normal efficiency. So after returning from the Commission of Science, Technology and Industry for National Defense, Chang Haonans daily life did not change much except that he gradually shifted his focus to the design and manufacturing of aero-engines. On the contrary, because the overall proficiency of software project members is getting higher and higher, the daily work intensity has dropped a lot. The people sent by Guihang were originally expected to arrive in the capital within these two days, but they were apparently delayed for some reasons on the way. In this day and age, its quite normal. ?After all, there are not many places with air connections, and there are no high-speed railways. Considering the locations of the other factories, I am afraid there will be a long stretch of passenger cars in between. In short, when Chang Haonan finally received a call from the school guard saying that two comrades from Zhucheng wanted to see him, it was already three days after the agreed time. The person who came was naturally Sun Huizhong, and one of his assistant engineers named Lin Tongxin. The latter is a graduate student who just graduated from Northwestern Polytechnical University this year. A native of Qian Province, otherwise Im afraid I wouldnt have made such a choice. ?The overall resume is not particularly impressive, but in a place like Guihang, it is not easy to recruit such people, so there is no qualification to be picky. So I was brought to the capital just one month after joining the job. The degree of emphasis can be seen. Director Chang, I havent seen you for over half a year. Congratulations on your promotion. Sun Huizhong just chatted with the guard at the door and learned from the other person''s name that Chang Haonan has served as the director of this supercomputing center. Hey, no promotion, just contribution in different positions. Chang Haonan said and led the two people to the sofa next to him, then poured two cups of tea and handed them over: Sun Gong was so tired on the journey that he didnt take a days rest at his residence after arriving in the capital? The reason why I asked this question is that the other two looked a little embarrassed. ?Hair and clothes were a mess, his eyes were bloodshot, and he looked as if he hadn''t slept much in several days. Sigh...forget it, this journey is really going to make me anxious to death. ?Sun Huizhong drank all the water in the paper cup, and then sighed heavily: "It was pretty smooth at first. We took a bus from Yunma Factory to Zhucheng, just in time to catch the flight that only runs twice a week to Jiangcheng, and then... we were delayed in Jiangcheng for four days, otherwise we would have been Its impossible for me to arrive so late. It took so long? Chang Haonan originally didnt mean to blame the other party for coming late. Anyway, Rui Xiaotings previous remote fire project had proven the usability of the software. ?However, the other party''s mention did make him a little curious. After all, judging from the previous application report submitted by Guizhou Airlines, they should be quite anxious about this project. "Last week, it rained heavily in Jiangcheng for several days, and all planes were suspended. At first, we were worried about safety issues and did not dare to take the train. Then we took a look at the timetable and found that there were almost no trains to the north. All stopped." Finally, we finally waited for a semi-clear weather this morning, and the water on the airport runway was drained, so that the plane could take off normally. Otherwise, Im afraid we would have to keep waiting. Chang Haonan was shocked by what Sun Huizhong described. ?Although he has no time to pay special attention to the weather forecast, it is difficult for someone who is engaged in aviation to be unaware of it. ? Judging from the recent feedback from various places, it is not just Jiangcheng that has suffered continuous heavy rains. The rain here in Beijing is not heavy, but it has been falling intermittently for less than half a month. Factory 132 in Chengdu has completed preparations for the first flight of Project No. 10, but has been unable to determine the specific first flight date due to continuous rainy weather. Factory 112 in Shengjing postponed the delivery of four J-8Cs due to weather conditions. When I called Rui Xiaoting two days ago, the other party also mentioned that it was raining in Jinling... Chang Haonan must have remembered the story of continuous heavy rains across the country, especially in the middle and lower reaches of the Yangtze River, in his previous life. But not this year. Is the flood coming ahead of schedule? Climate change itself is highly random and easily subject to disturbance. Even as a reborn person, he cannot guarantee that the two timelines he has experienced are completely consistent in these details. On the other hand, before a series of water conservancy projects including the Three Gorges were built, large-scale floods in the Yangtze River Basin were not uncommon. It was just that the incident in 1998 was particularly exaggerated. ?This made Chang Haonan dare not jump to conclusions easily, so he had to continue asking: Its been raining for so many days. How is the situation in Jiangcheng? Im talking about flood control and disaster relief. ?Sun Huizhong raised his head, seeming to be recalling what happened a few days ago: I dont quite understand this, but it doesnt look optimistic. My impression is that since the day before yesterday, many military vehicles carrying people and supplies have driven in. "Um" After thinking for a moment, Chang Haonan still did not continue to ask. With the People''s Liberation Army here, there is definitely no need to worry about organizing rescue operations. The only problem is technology. He should have been able to play some role in this regard. But because it was suddenly advanced a year, it is indeed a bit unprepared now. ?Things that are too complex, such as improving key equipment such as helicopters or construction machinery, will definitely not be able to quench the thirst of the nearer. It seems like you can only start with something simple ??However, Sun Huizhong next to him naturally had no way of knowing what Chang Haonan was thinking. After the pleasantries were over, he took out the laptop and a box of CDs he had brought with him and handed them over: Director Chang, here is our detailed design information on the new training aircraft. Please take a look. The latter, whose thoughts were interrupted, quickly adjusted his mood and motioned for the other party to put things on his desk. The business cannot be delayed. Looking at the previous situation with Rui Xiaoting, he does not need to complete most of the work. He only needs to provide guidance at the beginning and in the most critical places. ?It took a few minutes to turn on the computer, and Chang Haonan clicked on the project file that was prominently located on the desktop ??Computer hard drives in this era were not very big, and unstable pirated systems had not yet flooded the market. Many people did not have the habit of partitioning, and all files were simply thrown onto the desktop. Usage habits are somewhat similar to the SSD era more than 20 years later. After a long file reading time, a 3D model of an aircraft that Chang Haonan was very familiar with appeared on the screen. This is exactly the improvement idea he proposed in Rongcheng before. However, upon closer inspection, there are many details that are different. (End of this chapter) Chapter 380 High angle of attack and high maneuverability (HARV) technology verification Chapter 380 High Angle of Attack and High Maneuverability (HARV) Technology Demonstration Machine In addition to the changes in the shape of the outer edges of the wings and vertical fins that were seen in Ding Gaoheng''s office, as well as a set of extra fuel tanks on the back of the aircraft, the design plan before Chang Haonan also modified the shape of the wing strips. , extending directly from the root of the wing''s leading edge to the side of the canopy. Since the length is too exaggerated, it may even cause the pilots crotch to get stuck when getting on and off the plane. Therefore, in your plan, a small folding boarding ladder was inserted under the side strips... Its quite thoughtful It doesnt really matter if you have your own boarding ladder for land-based aircraft, but if you want to board a ship in the future, it is still necessary. After all, the land on the deck of an aircraft carrier is precious and the number of ground crews is limited. It would be the same if there were fewer bits and pieces around the aircraft. Of course, Chinese aircraft designers in 1997 would definitely not design according to the standards of carrier-based aircraft. This was probably just to make use of the ineffective space under the side wings. Chang Haonan didnt even need to calculate such an improvement, he knew that it must be specifically to enhance the aircrafts control performance within a specific angle of attack range. ?After such modifications, at a quick glance, the entire aircraft feels a bit like an F18 with a single vertical tail and a single engine. After returning from Chengdu last time, we followed your ideas and made a complete overhaul of the JJ-7. At present, the aerodynamic design of the first version has been basically completed. Seeing that Chang Haonan had opened the project file, Sun Huizhong quickly came to the side and took out a stack of photos from his pocket while introducing the results of his recent work: One of the current problems is that I really dont know how to design the DSI air inlet, so I first used an ordinary D-shaped baffle air inlet instead. The other is that there is no way to do structural calculations due to conditional factors, so For the time being, I just made a wooden model and filled in the internal equipment to see. " ?Chang Haonan took the photo and looked at it briefly. Its really a bit fresh. ??In his last life, when he entered the aviation industry and finally came into contact with aircraft design after all the hard work, the Beijing Olympics was about to start, so naturally he had not been exposed to this traditional craft. Im not telling you, Mr. Sun, your model is quite good. It feels like it could be used as a handicraft. Sigh... I am ashamed to say that in recent years, our best business at Guihang has been wooden furniture, which has even been exported to several Middle Eastern countries. ? ? Sun Huizhong, as an aircraft designer, is always a little embarrassed when it comes to mentioning this matter - An aircraft manufacturing company has never even exported aircraft, but it exports furniture. ??But this is nothing to Chang Haonan, who came back from more than 20 years ago. As for side business, of course you can do some if you have the conditions. ?Chang Haonan did not dwell on the internal structure for too long. ?As far as a simple light trainer aircraft is concerned, it does not require particularly exaggerated structural strength, and the focus of optimization is mainly to reduce weight as much as possible. It can be used by Guiyang Airlines for practice. I see that you have made some changes in the design of the wing. Is it to improve the linearity of the lift curve at small and medium angles of attack? Hearing this question, Lin Tongxin, who had been staying behind Sun Huizhong just now, his eyes lit up: Director Chang, you...see it? In fact, in terms of age, Lin Tongxin, who graduated with a Ph.D., is several years older than Chang Haonan, but after this period of experience, the latter can no longer see many traces of being an undergraduate graduate in his early twenties. In addition, If you don''t know the position between his eyes, most people would think that although he looks young, he must be in his late thirties. This design was proposed by Kobayashi after he joined the company. After the modification, we did a simple calculation ourselves and it is indeed good for improving maneuverability. Sun Huizhong explained next to him. "Of course, small-sized slat wings, or structures similar to slat wings, are the main reason why the **** of the lift curve of the aircraft decreases at small and medium angles of attack. For early mechanical or analog fly-by-wire flight controls, this strong and inexhaustible The non-linearity of the rules is very difficult to control. Chang Haonan put the photo aside, picked up the mouse again, and enlarged the upper part of the screen: The early designs of the Su-27 and F15 both suffered in this regard, and I think you should have found some inspiration from the F18. This...is all right for you to explain. ?Lin Tongxin suddenly became excited: This is the conclusion that my supervisor told us when I was working on a project for my masters degree. I didnt pay much attention to it at the time, but I encountered a similar situation as soon as I started working this year... ?The other party''s reaction made Chang Haonan couldn''t help but smile. He recalled that when he had just graduated and entered the aviation industry in his previous life, he seemed to be in a similar state to him... Then I was quickly taught a lesson by reality. ?There is still some difference between actual work and what you learn in school. In fact, many early third-generation aircraft with slatted wing designs face the problem just mentioned, that is, the aircraft can maintain a certain degree of maneuverability at large angles of attack, but is prone to losing control at medium angles of attack. That is, the torque characteristics are very poor. ?Many seemingly strange designs were born to solve this problem. It''s just that the development of aerodynamics far exceeded initial expectations. By the mid-to-late 1990s, there were already many ingenious designs to improve the linearity of torque. Combined with the huge progress in flight control technology, this problem actually Basically no longer exists. ?Thinking of this, he decided to say a few more words: The knowledge learned is indeed very solid, but we still need to work harder to learn and apply it. Lin Tongxin, who just now thought that his train of thought was completely guessed and recognized, suddenly turned pale: Ah this "It must have been the early 1990s when I was studying for my master''s degree, and the situation was still somewhat different from now. In fact, with the response speed and control capabilities of today''s fly-by-wire flight control, as long as the design level is appropriate, there will be no problems in this regard. " Speaking of this, Chang Haonan pointed to the vertical tail part of the aircraft on the computer screen and said: "On the contrary, the side strips you design like this may induce a divergent oscillation in the tail part, which is a test for the strength of the vertical tail root. If you observe carefully, you will find that the F18''s vertical tail root is designed with three sets of reinforcing ribs. Just to deal with this problem. "this" ?Lin Tongxin felt relatively good about himself just now, but when he was told this, he suddenly felt a little embarrassed and had to scratch his head in embarrassment. ?Of course, Chang Haonan also knows that at this time, he cannot blindly undermine other peoples self-confidence, so he changed the topic: But, if you can have this idea, instead of just mechanically executing the leaders instructions, you are already ahead of many people. The reason why I say this is definitely not because Chang Haonan was in Versailles. ?There are only a handful of unique geniuses who can change the world on their own. ?Taking him as an example, without the help of the system, he could certainly achieve some impressive results by relying on his experience and technology in his previous life, but it would never be possible to reach this point. Most peoples career development path is gradual. The key is to have the opportunity, resources and courage to try. ?Hence, although this Lin Tongxin may not be very strong spiritually, he is definitely a malleable talent. If nothing else, how many people, after graduating with a Ph.D., can still recall a casual remark made by their supervisor while working on a project at the master''s level? But he remembered it. If you are interested, I just have a simpler solution here that can further improve the available angle of attack based on the original design. Chang Haonan said as he pulled a piece of graph paper from the side and drew a picture on it: Designing a retractable small-sized side strip on the side of the nose can reduce the unsteady lateral force and yaw moment generated by the asymmetric vortex of the nose of a large attack angle, and at the same time, it can also take advantage of the side strip vortex. The lateral force generates a moment that hinders yaw. In addition, since the size of the nose strip is almost negligible compared with the wings and tail, it will not affect the longitudinal aerodynamic balance you have prepared. " However, the telescopic structure takes up a considerable part of the nose space, so it is really useless for fighter jets that pursue the size of radar antennas, so I did not apply this design to a specific model. He handed the schematic diagram he drew to Lin Tongxin next to him: If you are willing, you can take advantage of this period of time in Beijing to try out this new trainer aircraft to see if you can develop a specialized high-angle-of-attack high-mobility technology demonstrator. "On the one hand, training aircraft have certain requirements for the controllability of extremely large angles of attack. Compared with other methods, this solution is very low-cost and can be used. On the other hand, it can also be used as a way for your airline to show its face. An opportunity. Selling airplanes is sometimes the same as selling other things. You have to come up with some gimmicks to get people to pay attention..." Having said this, how could the latter have any reason to refuse? He immediately took the graph paper with both hands: Of course I am willing, thank you Director Chang for the ideas and opportunities! Writers Assistant has launched a new green content plan. When I posted the last chapter, I clicked on it and tried it. As a result, it directly deleted the next paragraph of my content... which made the last chapter almost less than 2,000 words... (End of this chapter) Chapter 381 Practice designing a DSI air intake Chapter 381 Practice designing a DSI air intake ?Young people who have just joined the workforce are often very passionate, especially after being given direction by Chang Haonan himself. The nose wing is a relatively independent aerodynamic component. Due to its relatively small size, it will be in a contracted state during level flight or low angle of attack flight. It will not affect the normal aerodynamic shape of the aircraft. Only when the angle of attack It will start and take effect only after it breaks through a certain threshold. And this process obviously cannot be carried out manually by the pilot. So where to set this threshold, and what the length and width of the nose side strips are to obtain the best side strip vortex, this is the "work" left to Lin Tongxin. As for Sun Huizhong himself, he is naturally responsible for a more important task Under the guidance of Chang Haonan, the design and optimization of the DSI air inlet of the advanced trainer aircraft was completed. As a completely non-adjustable air intake type, the biggest problem with the DSI air intake is that it only has one configuration. Therefore, the optimization interval is constant and must have a large optimization interval width. ? ? It doesnt matter if the optimal optimization range of the rectangular baffle air inlet is only Mach 0.01. Anyway, as long as the flight control is strong enough, the air intake efficiency can be ensured to be always in the optimal state by adjusting the position of the baffle. ??However, if the fixed air inlet is made like this, slightly changing the flight speed will cause the air intake efficiency to drop drastically, and even the boundary layer cannot be blown away, resulting in strong air intake distortion, which will affect flight safety. In short, it requires a high level of design and experience to achieve a satisfactory optimization state for aircraft using DSI inlets. Besides, Project No. 10 is a key project with a name at the highest level, and every move it makes will attract the attention of countless people. After the first flight of the No. 01 prototype using a three-way adjustable inlet, it needs to undergo major modifications, so it is necessary to produce sufficiently convincing data. As it happens, the common speed range of advanced trainer aircraft is much smaller than that of fighter jets, and the optimization difficulty of the relatively traditional aerodynamic layout is also lower than that of the J-10 using a canard + delta wing configuration. Perfect practice opportunity. Sun Gong, you must make sure you fully understand what Im going to say next. If theres anything you dont understand, ask me right away. ?Chang Haonan turned on his computer, called up several design files that he had prepared long ago, and then motioned to Sun Huizhong to move two chairs from the side. For him nowadays, many times he no longer has to do everything by himself, especially when there is a helper around him. "clear." ?Sun Huizhong quickly sat next to him. "As for the basic principle of DSI inlet, I have already talked about it when I was in Chengdu. Simply put, it uses the characteristics of the cone shock wave itself to form a strong pressure gradient on the convex hull surface at the lip of the inlet. , blowing the fuselage boundary layer at this location directly outside the air intake opening to reduce the negative impact of the boundary layer on air intake efficiency. ?Speaking of this, Chang Haonan called up a pressure distribution map that he had asked Yao Mengna to help draw some time ago. It was tested using a DSI inlet model under ideal conditions. From the above, it can be clearly seen that the convex hull structure uses the pressure difference to directly "push" the shock wave out. ?After confirming that both Sun Huizhong and Lin Tongxin had no doubts, he officially entered the key design part today: "It can be seen from this principle that the core of the DSI air inlet design is the shape of the convex hull structure. Through theoretical and numerical analysis of the waverider, I have summarized two design convex hulls. Methods." I remember you said before, select a number of tracking points from the front edge line of the conical surface, and start tracking from these tracking points to the downstream of the flow field in the flow field..." I have to say that Sun Huizhong definitely put his heart into it when he was in Rongcheng. Even such details can be remembered. "Yes, this is the generating body method, also called the cone guide method. It is also the basic principle of the most traditional method for designing DSI inlets. It is relatively intuitive and easy to understand, and the design process requires less calculations. So at the beginning of this year , it was the first method I considered. Chang Haonan nodded, but then his tone changed and he said: "But recently I just happened to design a new numerical calculation tool whose calculation efficiency is much higher than that of traditional software, so the limit on the amount of calculation becomes much smaller, so I developed a new numerical calculation tool based on the generative volume method. The second method is the close cone method. The second method? ?Sun Huizhong felt that his brain was a little weak at this time. Designing a DSI air inlet is inherently a difficult task. Even the United States has only installed a relatively simple early version on an improved F16 technology demonstrator. The JSF Joint Strike Fighter, the first mass-produced model planned to use DSI inlets, has just begun to be selected. In short, it is still in the exploratory stage of design. As a result, you have already summarized a complete set of methodology, and it actually includes two solutions? Its simply unreasonable "Yes, the second method is more accurate than the generating body method, because this method does not need to presuppose a geometry, but directly gives a curve describing the shape of the shock wave at the exit of the waverider, and divides this curve into There are countless small arcs. Each arc can be considered as a part of the shock wave curve, and the cone that generates the shock wave in this section is the close cone. The plane that is close to the axis of the cone and is orthogonal to the arc is called the close surface..." The corresponding close cone is obtained on each arc of the shock wave curve, and finally a series of streamlines are obtained by defining the leading edge curve tracing, which together form the lower surface of the DSI inlet convex hull. "This design method is more flexible and can meet the requirements of various flow sizes and various air inlet geometries. That is, it can adapt to any engine by adjusting different shock wave curves without having to adapt the engine to the inlet. The final product The performance will naturally be better. At this point, Chang Haonan turned around and saw two pairs of simple eyes. Obviously, the leap in thinking just now seems to be a bit too big. It is really difficult for engineers with average mathematical theory knowledge to fully accept the principles in a short period of time. Lets calculate it using two methods. He is going to demonstrate it in the simplest way: We first assume that the shape of the inlet shock wave is a quadratic curve z=-ax^2+b (a>0). ?Chang Haonan wrote a quadratic function directly on the paper. UhDirector Chang, the shape of the shock wave is so simple ?While Chang Haonan lowered his head to write, Lin Tongxin originally wanted to ask why the shock wave curve was in such a simple form. But the words stopped abruptly in the middle of the sentence.?????Because Chang Haonan wrote the second function on paper. And such a combination of parametric equations and curves. ?Chang Haonan stopped writing and looked at Lin Tongxin standing next to him: What were you going to ask just now? No, its okay. The latter quickly shook his head: I was just thinking, Director Chang, its amazing that you can come up with such a complicated shock wave curve. It hurts. It hurts so much. My face hurts so much ? Sun Huizhong next to him had an expression of "I don''t really want to know this person." Actually, Chang Haonan didn''t hear clearly what the other party was saying just now, so he just continued to introduce: "The design of the convex hull surface is originally the core step of the DSI inlet. I have previously thought about simply using conic equations to express it, but the shock wave curve form that needs to be deduced from the mechanism is limited by the current computing power. It was still too difficult, so I had to add some parametric parts. "I understand." ?Lin Tongxin just hopes that this topic will be over soon. It was so embarrassing that he wanted to escape from this world just now. Fortunately, Chang Haonan did not continue to pester: Then all thats left to do is He spent more than ten minutes on the computer and actually demonstrated the steps he just mentioned. Of course, for convenience, all parameters are temporarily set to 1, so the designed convex hull shape is a bit strange. But judging from the reactions of the two people next to him, at least the purpose of explanation was achieved. So Chang Haonan picked up his pen again and circled a, b, l, and other symbols: Our next work, in summary, is to select appropriate parameters for this shock wave curve based on the characteristics of the aircraft. Then he looked at Lin Tongxin next to him again, but this time he put on a more relaxed tone: "This is another reason why I don''t want to extend the length of the strakes under the canopy. The inflow compression effect of the strakes will destroy the originally relatively clean shape of the air inlet shock wave, making it difficult for me to The characteristics of the convex hull shapes corresponding to different shock wave curves are analyzed, and designing the air inlet directly in front of the side strip will not cause this problem. " "I get it now?" ?Lin Tongxin nodded quickly. He has learned not to express opinions without finalizing his ideas. "That''s good. If there are no other questions, we are ready to start work. But if there is anything you don''t understand later, you can always come and ask me." Chang Haonan said as he closed the lid of his laptop, stood up and prepared to lead two people to the computer room: "Although I originally proposed this model for the purpose of technical verification for Project 10, if nothing else happens, our Guihang Airlines will be the first aircraft to use DSI inlets on mass-produced aircraft. manufacturer." He knows that China in this era has a deep obsession with striving for "first" in various aspects. By the 2020s, after the aviation industry had developed, they no longer deliberately promoted and guided in this direction. It can only be said that the more something is lacking, the more something is wanted. Sure enough, when Sun Huizhong and Lin Tongxin heard his words, their spirits were lifted, and the slight fatigue they had just shown disappeared instantly. Can it be faster than the United States? The latter immediately asked excitedly. Of course, the JSF project has not yet been finalized. There is a high probability that your model will make its first flight before the end of this year. ?Chang Haonan packed up his things and motioned for the other two to follow him. "this" ?Lin Tongxin was stunned by this timing. He remembered that his teacher said in school that the design cycle of an aircraft often takes several years or even more than ten years. Master, is our Guihangs efficiency so high? Because Chang Haonan had already walked to the front, he had no choice but to ask Sun Huizhong next to him in a low voice. The latter was almost amused by him: There are indeed people who are very efficient, but they are not our Guihang Airlines. After speaking, he looked at Chang Haonan''s back and followed him quickly. ifier ?Lin Tongxin took a breath of air: Director Chang is a bit scary... (End of this chapter) Chapter 382 Prototype 01 threatened by floods Chapter 382 Prototype No. 01 threatened by floods According to the original plan, in the next few days, Chang Haonan should work with Sun Huizhong to design the DSI air inlet applied to the training aircraft as quickly as possible, as well as the overall structure of the aircraft, so that Guizhou Airlines can Construction of the first prototype began as soon as possible. However, plans cannot keep up with changes. ?His previous worries are gradually turning into reality With heavy rains falling in most parts of the country for many days in a row, the super flood, which is almost unprecedented in scale and scope, seems to be coming ahead of schedule... ?However, what really made Chang Haonan realize the seriousness of the situation was when he was called to the Commission of Science, Technology and Industry for National Defense for an urgent small-scale internal meeting on a night of moderate rain. Far less formal than last time, but the specifications are even higher. ?Liang Zhuoping got straight to the point and took out a piece of recording paper. ?The above is a summary of the call content: "According to the report of Factory 132 this afternoon, in the past half month, the total precipitation in Chengdu has exceeded 550mm. Although the factory has done its best to drain waterlogging, the local natural water storage capacity has basically reached the upper limit, and some There is water on the ground in the lower living areas. "According to today''s report from the Meteorological Bureau, after a brief period of cloudy weather from tomorrow to the day after tomorrow, there will be heavy to heavy rains for at least a week. According to the judgment of Comrade Yang Baoshu, general manager of Rongfei, it is difficult for the interior of the 132 Factory to bear any more With the impact of a round of rain, and as time goes by, the possibility of triggering geological disasters is also increasing, and the risk of the No. 01 prototype of Project 10 continuing to be parked in the final assembly workshop is very high." "So Mr. Baoshu just called us and proposed two methods. One is to move the prototype to a relatively high position in the factory area, where the radar station of the 132nd Factory Militia Anti-Aircraft Battalion used to be. The ground is flat and paved with cement, so we should be able to hold on for another 5-7 days, but if the rain continues unabated after a week, we may still suffer losses. "second" Speaking of this, Liang Zhuoping even hesitated for a moment before continuing: "Considering that the No. 01 prototype of Project 10 is actually capable of its first flight, in order to avoid greater losses, he hopes to allow No. 01 to take off early the morning after tomorrow and transfer to a nearby safer airport for temporary refuge. Obviously, this is definitely not optimistic news. ?An aircraft that has not yet made its first flight has to consider a long-distance transfer flight under relatively harsh weather conditions. The risks are bound to be considerable. For Rongfei to make such a shocking request only shows that the local flood control situation is already difficult to control. Everyones expressions became serious. ??Although Chang Haonan has been paying attention to the precipitation conditions across the country from the news these days, this application from Factory 132 made him intuitively feel the huge threat of floods for the first time. After a period of silence, Ding Gaoheng cleared his throat and first spoke to confirm: According to Yang Baoshu, the morning of tomorrow should be the last window for takeoff? ?Liang Zhuoping nodded: Thats right, the weather conditions further away do not support flight at all, and it is also very difficult to move from that radar position to the runway. Basically, if you choose the first road, you will have to fight the flood to the end. No one spoke again for the next few minutes. "Snapped-" The crisp sound of a lighter rang in the small room. Minister Cao Gangchun of the General Armament Department habitually wants to light up a cigarette. But just when the flames reached the head of the cigarette, he looked at Chang Haonan sitting next to him. After a moment of hesitation, he still didnt light it and stuffed the cigarette back into the box: Comrade Xiao Chang, you participated in the ground testing of the No. 01 prototype. I would like to ask, do you think this aircraft is currently capable of long-distance flight transitions? The latter lowered his head and pondered for a moment: Some of the hidden dangers previously discovered during ground testing have been eliminated, and the entire aircraft design has been completely verified, so I dont think there is a problem when it comes to long-distance flight. ?However, before Cao Gangchun could speak again, he continued to add: But the problem is, first of all, there is currently only one prototype of Project 10, and other related auxiliary equipment are still in the development process. If it needs to be transferred, there will probably be a lot of trouble. "First of all, the No. 01 prototype does not even need to use the auxiliary fuel tank. Considering that some fuel must be reserved for backup when landing, the safe transition distance may not exceed 1,000 kilometers. This distance is the plateau to the west, and the altitude of AL31FN The ability to take off and land on the plateau has not yet been verified. Going south and east, the risk of floods is greater than that of Chengdu, so we can only go northwest, and the distance is very limited. We cannot allow planes to land at civil airports. " Secondly, even if the transition is over, the local area will definitely not have the ability to maintain and maintain domestically produced third-generation fighter jets. Even the supply of high-quality aviation fuel will be difficult. How to get the aircraft back to Chengdu in the future is another problem. Furthermore, if Factory 132 is really damaged by floods, even if the prototype is retained, the losses to our countrys aviation industry will probably not be small. Obviously, this is a dilemma. In the final analysis, when faced with a natural disaster of this level, it is impossible to have a foolproof plan. We can only choose one with relatively small risks. ?In the next nearly half an hour, everyone put forward one idea after another, but in general, they were not more stable than the two reported by Yang Baoshu. But Chang Haonan never spoke. In fact, after learning about the precipitation situation there from Sun Huizhong a few days ago, Chang Haonan has been thinking about whether there are any solutions. For things like flood control and disaster relief, the most useful thing is of course reservoirs. Followed by large construction machinery. ?It is best to have heavy-duty helicopters. But these things obviously cannot be put together within a week or two. What he uses is cheating, not magic. In the absence of these equipment, traditional flood control and disaster relief... It can only be accomplished with sandbags, stones and human walls. Sandbags and rocks are used to block the flow of water, while human walls are used to slow down the impact of the flood peaks upstream. This is a method that works well but is also extremely risky. Not to mention a human wall that can be washed away by water if not careful, even carrying rocks and sandbags is an extremely high-intensity physical activity. You must know that emergency rescue and disaster relief will not only last a day or two. In the case of a long period of continuous lack of rest, it is necessary to ensure the transport speed. As a result, many people have suffered irreparable injuries or even lost their lives. This basic principle has not changed fundamentally even after more than 20 years, but fortunately, thanks to the development and progress of technology, the specific operation methods have been improved a lot. After brainstorming for a period of time, Chang Haonan finally thought of something that could not only alleviate the risk of waterlogging in the 132 factory, but also play a role in the process of fighting floods. Combined flood control module. ?This idea first originated from the prefabricated metal flood walls used in some European countries. ?However, the cost of that thing is very high, and the assembly is very cumbersome. It is impossible to install it in time when a flood comes, and the actual effect is very limited. Hence, while learning from ideas, China has also made some improvements. The core is actually the set of stones + sandbags. The stones were simply replaced with specially designed steel column-slab structural modules, and the sandbags were replaced with expansion bags filled with a high proportion of water-absorbent materials. When on the ground, the size and weight are very light, and a strong man can even carry 10-20 pieces at the same time. But after being thrown into the water, it can absorb water almost instantly, forming a blockage with a density of 1/6-1.8g/cm and a volume of 15-20 liters (basically the same as a sandbag). In addition to the idea, there are two key technologies for this thing. The first is to conduct fluid-structure coupling system analysis and dynamic response design on metal structural modules to achieve sufficient strength with the smallest possible weight and avoid being destroyed by huge water pressure - this is almost Chang Haonan''s best job, and it is not What a problem. The second is the water-absorbent material inside the expansion bag. Chang Haonan is not a chemical engineer, but he roughly knows that it is some kind of super absorbent resin. ??And the synthesis is not difficult. Because in the past they were directly disposed of as industrial waste. But I really dont know what exactly it is and where it can be produced. ?However, for this kind of thing, you can definitely ask for organizational help. Director Ding, Minister Cao, I have an idea. While everyone was silent, Chang Haonan finally spoke. (End of this chapter) Chapter 383 With the efforts of the whole country, we can build the Nine Heavens Breathing Land! Chapter 383: With the efforts of the whole country, we can build the Nine Heavens Breathing Land! In the entire room, everyone''s attention was instantly focused on Chang Haonan. ?Even though the latter has experienced many battles, he is also a little numb at this moment being stared at by several blazing eyes. ?However, after calming down, he still said in a deep voice: "I thought of a device that can build a flood control belt in a short time. It can not only deal with urban waterlogging, but also prevent dam failures caused by floods to a certain extent, or help block and rescue dams that have collapsed. "Um?" Hearing this sentence, Cao Gangchun''s eyes suddenly became sharp: Tell me in detail. As the only one with a serious military background among everyone present, he has a more comprehensive understanding of the pain points in the process of flood fighting and rescue operations. For an army in peacetime, disaster relief is a test of war. ??And because disasters are more sudden and unpredictable, in some aspects the requirements for organizational and combat capabilities are even higher! ?Of course, in this regard, the People''s Liberation Army has never disappointed. Wherever there is danger, there are soldiers of the people! But just as soldiers need weapons and equipment to go to the battlefield, emergency rescue and disaster relief also require technology and equipment that keep pace with the times. Although Cao Gangchun has worked in the headquarters for many years, he has also participated in several rescue operations for different types of disasters at the grassroots level, so he knows how difficult and risky it is in the absence of suitable technical equipment. Chang Haonan nodded: Okay, give me a pen and a piece of paper. Compared with previous research in the aviation field, this time, his overall idea was not complicated, so he made it clear in just a few sentences. Only a little more attention has been spent on the design of the steel frame used as structural support. Because Cao Gangchun asked very detailed questions. "Comrade Xiao Chang, the steel plate frame you mentioned is only used as a structure to accommodate the expansion bag, and it does not itself play a role in blocking the water flow, right?" Yes, you can think of this thing as a reinforced steel cage, and the expansion bags are gravel bags and sandbags that are lighter and easier to move. ??Although Chang Haonan is not a soldier, he is still someone who has experienced various propaganda in the information age. He can understand the other party''s urgent but worried mentality at this time, so he explained very patiently. Hearing this, Cao Gang was finally relieved of most of his worries. Its not that they dont trust each other, its just that they are separated from each other. People who have no idea about the power of floods can easily come up with some counter-intuitive methods such as use a metal wall to block the flood. So, what should be used as the absorbent material in the expansion bag you mentioned? In the end, Cao Gangchun still raised this most critical question. This is exactly what I want to ask the organization to solve. Chang Haonan glanced at the group of big guys in front of him and said solemnly: "I have read a document before, which talks about a highly water-absorbent powdered resin obtained due to process errors. The water absorption performance is about 1000:1-20. The content of the report is that the manufacturer originally just used it. When ordinary harmless solid waste was piled in the open air, after a heavy rain, the entire pile was filled with water-absorbed resin. It would be very difficult to go back and find this document now, so I would like to apply to conduct a thorough investigation of chemical companies across the country to see if any manufacturer has produced products with similar properties. I already have the design of the expansion bag and the steel plate frame. It wont take too long. As long as the problem of water-absorbent materials is solved, it can be put into production immediately! As soon as these words came out, Cao Gangchun beside him could no longer sit still, stood up and said: "I can''t wait any longer. One more second of delay in this matter will make it more difficult for the troops involved in disaster relief. I will go back and report it immediately, contact the Ministry of Chemical Industry, and ask them to issue orders to chemical companies nationwide. Send a notice and be sure to find this material!" ?The purpose of this meeting was originally to solve the risk of waterlogging faced by Factory 132. Now that Chang Haonan has proposed a solution, there is no need to continue to work on it. Xiao Chang, after the expansion bag and steel plate frame are designed, you must contact me as soon as possible. I will notify the quilt factory and machinery processing factory in the military industry system later, so that they can be ready to switch production at any time. ?Although Ding Gaoheng''s reaction was not as exciting as Cao Gangchun''s, one could hear some urgency from his speaking speed, which was much faster than usual. Lao Cao. Huai Guomo stood up from behind, stopped Cao Gangchun, who had already put on his hat and was about to go back to deploy the mission, and handed him a piece of paper in his hand. He is from the Chemical Engineering Department of Jiaotong University. Although he has not participated in any specific chemical engineering projects for several years, he has still not forgotten some of the basic skills he learned in the past. He has been silent just now and is deducing the possible composition and synthesis based on the material properties described by Chang Haonan. route: "According to my analysis, the material Comrade Xiao Chang mentioned should be some kind of cross-linked polymerization product using acrylic acid or acrylate as one of the raw materials. You can tell the Ministry of Chemical Industry to focus on the chemical industry in this field. "Inside the enterprise." Chao Gangchun took the piece of paper filled with element symbols and chemical structural formulas. ? He ??graduated from the artillery major and couldn''t fully understand it, but that didn''t matter. As the people in this conference room returned to their jobs, orders were issued in an orderly manner to all parts of the country, and together with the People''s Liberation Army soldiers who were gathering across the country, they were preparing to fight against this natural disaster. The huge and sophisticated state machine began to show its power at critical moments. Even if its just a part. That night, dozens of military factories located along the Yangtze River, Nenjiang River and Songhua River received instructions from their superior units, asking them to immediately enter production mobilization status and be ready to switch to production of a polyester made of high-strength chemical fibers. layers of sealed bags, and a steel structural frame with a size between 2-3 meters that can be quickly assembled by bolts. ? Later, textile and steel companies in these regions also received similar notices, requiring them to suspend orders at hand and give priority to providing raw materials to a group of nearby military factories that have not had much production tasks for many years. Early the next morning, Army aviation units near Gan and Hubei provinces received orders to take off, weather permitting, to conduct aerial reconnaissance of the local disaster situation. Twelve hours later, a research team from Zhejiang University launched a stratospheric airship carrying communication relay equipment on the border of Hubei and Shaanxi provinces. ??That is, the ship that was responsible for providing communication relay for naval aviation aircraft carrying out embankment operations in southern Qiong Province a month and a half ago. On the third day, Chang Haonan, who stayed up for two nights in a row, handed the detailed design plan of the flood control expansion bag and steel structure frame to Ding Gaohengs desk. Relevant comrades from the General Office of the Science and Technology Commission have already been waiting here. They will formulate the design plan into production standards in the shortest possible time and distribute it to various arsenals that are already ready. Director Ding, the kind of material I mentioned... ?Chang Haonan didn''t have much time to pay attention to what was happening outside these days, so he was a little worried about it. Already found. ?Huai Guomo, who was sitting next to him, picked up a report from the table and handed it to Chang Haonan: "Last night, the Ministry of Chemical Industry received a report from a chemical factory in Kecheng, Zhejiang Province, stating that they had unintentionally added starch, acrylic acid and a cross-linking agent together, and then added alkali to decompose them after graft polymerization. A large amount of waste products were produced that were not pure enough but highly absorbent, and it took a lot of effort to process them. ?Chang Haonan took the report and glanced at it quickly. He does not have much knowledge background related to chemical engineering, but the conclusion can still be understood. The water absorption capacity is about 1000:5-10, which meets the requirements. The main raw materials are starch, acrylic acid and sodium hydroxide, which have almost no requirements on purity, and the cost is no problem. ??More importantly, this factory is already producing polyolefins using a similar graft polymerization process and can complete the conversion in a relatively short period of time. "Very good!" ?Chang Haonan flicked the report in his hand: In this way, we can reduce a lot of physical burden on our soldiers participating in flood fighting and rescue tasks, and the damage caused by waterlogging in major cities will be easier to control! Yes, when Lao Cao found me this morning, he almost jumped up. Ding Gaoheng put the report back on the table: This thing you designed may seem inconspicuous, but its significance to the country and the people is no less than those previous achievements. I think it must have a resounding name. In the mythology, Dayu held four innate treasures in his hands. I think it would be better to name them after one of them that is related to water control. Just call it Nine Heavens Breathing Soil! (End of this chapter) Chapter 384 People are here on the levee! Chapter 384: People are here, the embankment is here! In the end, Chang Haonan felt that it was a bit too middle-class, so he proposed to cancel the first two words and name it "Xi soil" modular flood control reinforcement kit. It seems much more normal this way. And it also retains the original Chinese characteristics. Ding Gaoheng and Huai Guomo are both almost 120 years old together, so naturally they cannot compete with Chang Haonan in such trivial matters. Therefore, it took three people just one minute to determine the name of this equipment that will leave a huge mark in the field of flood prevention and disaster relief around the world in the future. ??Although Chang Haonan felt a little tired from the almost non-stop work for the previous two days, it was ultimately a gratifying thing to see his research results successfully implemented and applied in emergency rescue and disaster relief. The next step is to put it into production and then transport it to where it is needed. ?The latter breathed a long sigh of relief, and the worry and tension in his heart finally eased a little. "Don''t worry, we allocate production tasks based on the principle of proximity. Under the premise of safe location, we try our best to ensure that factories close to several high-risk river sections give priority to production. The only problem is that kind of highly water-absorbent resin. The process is special, and currently the manufacturers that can supply in large quantities are in Zhejiang and Shandong provinces, but the military has dispatched special transportation troops to ensure the smooth supply of raw materials. " In terms of disaster relief organizational capabilities, Huaxia says it is second, and no one dares to claim first. You have done everything you can, and leave the remaining tasks to us. Ding Gaoheng stretched out his hand, patted Chang Haonan''s shoulder, and said with emotion: Furthermore, it seems that our Comrade Xiao Chang, in addition to being a good hand at researching military equipment, is also good at developing civilian technology. The latter shook his head slightly: Whether we are researching weapons and equipment or anything else, our ultimate goal is to protect the security of the country and its people. We reach the same goal through different paths. ??As a researcher with a background in the military industry, it is great to develop new weapons and equipment, but the sense of accomplishment brought by rescuing people is definitely a brand new experience - Since you have such ability, why not do it? Ding Gaoheng was stunned when he heard this. Some fragments from the corners of my memory came back into my mind. That was an old friend, a senior, who said something similar before his death - "I don''t love weapons, I love peace, but for peace, we need weapons." Well said, well said ?His voice was not loud, almost muttering to himself. In a daze, Ding Gaoheng seemed to have returned to the Gobi Desert more than ten years ago. The earth trembled, the sky roared, and the smoke and flash of nuclear weapons explosion appeared before our eyes... It took a few minutes for him to come back to his senses, and secretly told himself that time was urgent now, not the time to dwell on the past. ?So, after quickly adjusting his mood, Ding Gaoheng raised his head again; By the way, from the look of you, you probably havent had a good rest for a few days. Ive asked someone to prepare breakfast and a room in the guest house for you. You can just go there and have a rest. ?This is indeed the physical sense of handing over a pillow when drowsiness comes. ??Before, I had been in a state of nervous tension and didn''t feel it. Now that I suddenly relaxed, I felt waves of sleepiness rising. Also good. ??He knew that Ding Gaoheng was right, there was only so much he could do, and the subsequent tasks belonged to others. In the next few days, it rained continuously. ?One evening a week later, the Flood Control and Drought Relief Command Center near the Yangtze River Embankment in Gangneung. A figure wearing a poncho was pacing back and forth anxiously inside. The command center is actually a place temporarily built with several tents on a slightly higher ground. A set of special antennas are set up next to it to communicate with various monitoring points in front, as well as Jiangcheng and Jingcheng behind. Report to the Deputy Commander-in-Chief! ?The call team leader put down the radio and took three steps at a time to come to the figure: The Shashi Monitoring Station reported that the water level has reached 44.68 meters! Thanks to the new stratospheric communication relay technology, even if the ground communication station is interfered with or destroyed, the normal uploading and distributing of information can still be maintained. This may be the only good news at hand. ?However, this "good news" brought him bad news like a bolt from the blue. ?According to the "Severe Flood Prevention Plan" previously issued by the country, when the water level in Shashi exceeds 44.67 meters, flood diversion work should be prepared immediately. ??But the words "flood diversion" are easy to say, but when it comes to making a decision, it is extremely difficult. ? In the past few days, an expert group has calculated that flood diversion will cause 921.34 square kilometers of land to be flooded, with a conservatively estimated direct economic loss of nearly 20 billion yuan. ??But if there is no flood diversion, the flood peak in the upper reaches will encounter the floods that have also formed in the middle and lower reaches, transferring all the pressure to the lower parts, especially Xunyang near the Poyang Lake system. Furthermore, once the Jiangling Yangtze River levee breaks, the entire downstream area, including the three towns of Jiangcheng and most of Gan Province, will become a swamp, and the losses will be even more incalculable. The choice was placed in front of Niu Maosheng, deputy commander-in-chief of the General Defense Department. flood diversion ?He hesitated for a moment: "I need to report and request final instructions on whether to divert the flood. But without further delay, we will immediately mobilize all the forces that can be mobilized. We will first notify the people in the flood diversion area, and they must all move to a safe area before 12 noon tomorrow. No one can be left out! Be prepared for the best and prepare for the worst. "yes!" The call team leader quickly turned back to the equipment and began to deploy specific transfer work. Soon, the shrill air raid sirens sounded, and TVs, radios, loudspeakers, and staff knocking on doors all began to announce the same content "Flood Diversion Preparation and Relocation and Resettlement Headquarters Transfer Order" "Where there is life, there is hope." As long as there are people around, a home can be rebuilt if it is destroyed... ?Huge slogans passed through the streets and alleys, echoing in the sky above Jiangling. ?Niu Maosheng clenched his fists and looked tense. With a background in farmland water conservancy, he has been working on the front line of the water conservancy system since graduation. He has participated in and directed flood control and rescue work in the Beijing-Tianjin-Hebei region and along the Yellow River many times, which can be said to be experienced in many battles. But the current situation is far more serious than ever before. Perhaps only the catastrophic flood in 1954, which he had not directly experienced, could be compared with it. Thinking of the descriptions of the flood in the files he had read, Niu Maosheng felt chills all over his body The number of people killed directly due to floods alone exceeds 30,000. If various secondary disasters are also included, the final number may be an order of magnitude higher. Even though reason tells him that the water conservancy facilities in the entire Yangtze River basin today are by no means comparable to those 40 years ago, and the disaster prevention and secondary disaster control capabilities are far superior to those of the past, but emotionally, it is impossible not to worry. Lets go and have a look on the embankment. Niu Maosheng, who was restless, finally turned around and said to the entourage who were following him. But deputy commander, here "There are other staff responsible here. Besides, the communication is still open. If there is anything important, just contact me directly." ??He said and pointed to the portable radio equipment carried behind the back of the person next to him. ?A few hours later, Niu Maosheng first took a passenger car, then transferred to a truck, and finally changed to walking, and finally arrived at Jiangling Embankment. ?Several people trotted forward, snapped to attention, and saluted Niu Maosheng. ??Due to the obstruction of the life jacket, he could not clearly see the military ranks of these people. Fortunately, the leader quickly spoke: Huang Linqun, commander of the 361st Regiment of the 121st Infantry Division of the 41st Group Army of the Guangzhou Military Region, reports to Comrade Deputy Commander-in-Chief! ?This number is somewhat familiar to Niu Maosheng. ?Subsequently, with the help of the searchlight that swept across the scene, he saw a fluttering red flag not far away. ?There is a row of large golden characters written on it. Tashan Defense Hero Group Tashan has no pagoda and no mountain. The four vertical columns are both pagodas and mountains. This unit was the former 28th Regiment of the Fourth Column of Dongye. ?Seeing the PLA soldiers on standby on both sides of the embankment, Niu Maosheng finally felt relieved. Lets briefly talk about the overall situation of the embankment. "yes!" ? Huang Linqun nodded, and then led Niu Maosheng and his party onto the embankment: The designed flood diversion area covers about half of the area of ??Gongan County, and is mainly composed of the North Gate (flood gate), South Gate (control gate) and 208 kilometers of embankments. We are now on the embankments..." "The North Gate is located near Taipingkou where the Hudu River and the Yangtze River meet in the northern part of the Public Security Bureau. It consists of a 54-hole steel arc gate about 1 kilometer long. There is also a layer of siltation embankment outside, which is fixed. If you want to discharge floods, you need By blasting the siltation embankment, the floodwaters from the Yangtze River are released, and then the north gate is opened to allow the floodwaters to enter the flood diversion area. "According to the design, the maximum inflow flow of the North Gate is 8,000 cubic meters per second. If the water level in Shashi cannot be reduced by opening the North Gate, we need to blast the Lalinzhou embankment about 4 kilometers east of us and cooperate with the North Gate to divert the flood into the Jingjiang River. Flood diversion area Captain Huang! Just as the two people looked towards the flood gate with the help of searchlights, another soldier also wearing camouflage uniform suddenly ran over from behind. Because of the darkness, I couldnt see my face clearly, but my voice sounded much younger. Captain Huang, do we really want to blow up the embankment tomorrow? ?This question was obviously not something Huang Linqun could answer, so he had no choice but to raise his head and look at Niu Maosheng. Little comrade, I am Niu Maosheng, deputy commander-in-chief of the General Defense Force. May I ask who you are ??The latter walked closer to the opponent. Although he still couldn''t see the military rank clearly, he could at least tell that he was a lieutenant. ?The other party called Huang Linqun Captain Huang instead of directly the leader, which seemed to indicate that he was not from the 361st Regiment. Deputy Commander-in-Chief, I am Liu Zibei, commander of the Ground Explosion Company of the 41st Group Army Engineer Regiment, which is currently under the command of the 361st Regiment! ?Sure enough, it seems that if it is decided to release the flood, the related blasting work will be completed by him. How are the preparations for flood relief going? ?Niu Maosheng did not answer the other party''s question directly, but asked first. A total of 50 tons of explosives have been laid on the Beizha Barrage and Lalinzhou River Embankments, and blasting can be carried out at any time as long as orders are received. ?Company Commander Liu''s first answer was entirely a professional question, so it was very straightforward. But then his tone changed: But Deputy Commander-in-Chief, I...I have learned blasting for more than ten years, but I cant just carry out the first real mission...that is, to flood peoples homes..." My hometown is in Hunan Province, and I know what its like after being flooded... Liu Zibei''s words hit Niu Maosheng''s heart like a heavy hammer. But he also knows that the most important thing to consider whether to release floods is to comprehensively consider various risks. It was raining heavily in the dark night, and the tension before the war made people breathless. Niu Maosheng did not go back, but stayed with Huang Linqun. In the meantime, he and the latter met the commander of the 121st Division and listened to the other party''s report, but in the end he returned to the location where the flood was planned to be discharged. It was late that night. Another group of people came to the embankment of Jiangling. Niu Maosheng was the first to recognize the identity of the leader. Commander-in-Chief! ?The other party nodded, and then said in a unique, slow but rhythmic tone: I have received the authorization to issue a flood diversion order, but before making a final decision on whether to divert the flood, I still hope to listen to the opinions of water conservancy experts and frontline PLA commanders. Several engineers and meteorological experts from the Hydropower Research Institute next to him looked at each other. Finally, one person stood up as a representative and reported: "Reporting to the Commander-in-Chief, the sixth wave of flood peak will reach Jiangling tomorrow, but this wave of flood peak is of a pointed and thin type. Although it is very high, the total water volume is limited. If combined with the ultra-elevation flood storage of Geheyan Reservoir and the Gezhouba Power Plant to reduce the flow, If all the reservoirs in Sichuan and Chongqing are locked, the ultimate water level should be around 45.25 meters, which is still below the theoretical limit of the levee. Therefore, if we want to survive the crisis safely, we must use enough manpower to guard it! " This judgment undoubtedly brings a glimmer of hope to the flood diversion area. ?However, the commander-in-chief also has an engineering background and knows that the theoretical limit has actually far exceeded the target limit during design. The middle part is just a safety margin due to the inability to guarantee 100% accuracy during the engineering calculation process. Since it is a margin, it must not be completely reliable. ??If we really choose to resist, the pressure will be on the cadres, masses and military commanders responsible for guarding the embankment. ?His eyes swept across the Huang Linqun standing in front of him. Captain Huang, now is not the time to show off, how confident do you think you can be? ? Huang Linqun did not answer directly, but took a step forward. He is just a group leader, and no matter what answer he gives, it has no decision-making significance. Commander-in-Chief, our 361st Regiment is the best at defense. Since we were able to defend Tashan back then, we can also defend Jiangling today. People are here at the embankment! (End of this chapter) Chapter 385 "Xi Soil" fights the Flood Demon Chapter 385 "Xi Soil" fights the Flood Demon Captain Huang was right. This kind of matter, which was related to the safety of dozens of millions of people, could not be decided by just the statement of his captain. ?But even so, the determination he and other commanders and fighters involved in disaster relief showed had an impact. At noon the next day, after a whole morning of discussions, the Flood Control Bureau finally officially issued the instruction No flood diversion will be carried out until the water level rises to 45.3 meters. But just in case, the relocation work of people in the flood diversion area still cannot be stopped. Following such an instruction, tens of thousands of People''s Liberation Army commanders, militiamen, and cadres and masses involved in rescue operations on the entire Jiangling Embankment were all mobilized to prepare for the upcoming sixth wave of floods! Also at a critical juncture, there is Xunyang further downstream. ?Due to special terrain factors, this city located next to Poyang Lake has borne the brunt of previous Yangtze River floods. Although the local rainfall is not heavy, when the upper and middle reaches of the main stream and tributaries flood one after another, and begin to interact and overlap with each other, the risk of flooding is actually more serious than in areas with heavy rainfall in the upper reaches. After the decision not to divert floodwaters in Jiangling was made, the pressure of the entire Yangtze River Basin concentrated here in a short period of time. There is no flood discharge area designed in advance, so there is no other choice but to resist. At the same time, because there is no flood discharge area, there is no place to focus on in the entire Xunyang section of the Yangtze River embankment. ?This is definitely not a good thing ? Anyone who has taken the exam knows that if there are no key points, it means it is all about the key points. The Xunyang section of the embankment was not expected to withstand such a large flood. As the previous rounds of flood peaks came one after another, it was still unable to fully withstand the increasingly high water levels. The rescue force of tens of thousands of people looks quite large, but if they are spread out evenly across hundreds of kilometers of embankments like beans, I''m afraid they won''t be able to hold on even if there is a problem. Therefore, they can only concentrate on staying at the garrison not far away and wait for orders. ??And because the stratosphere above Gan Province does not meet the required meteorological conditions, and Zhejiang University does not have a second set of relay communication equipment on hand, the information transmission situation here is much worse than in the Jiangling area of ??Hubei Province. Fortunately, the local weather is okay, so helicopters from the Army Aviation Force continue to take off, firstly to monitor the situation, and secondly, to be ready to deal with possible communication interruptions at any time. Report, there is a collapse between gates 4 and 5 of the embankment! ??In the local defense frontline headquarters, an anxious voice suddenly sounded. The most worrying thing has happened. The current breach width is 60 meters, but there is a tendency to expand to both sides. ?Liao Xinmin, the local head of the National Defense Bureau, is naturally far inferior to Niu Maosheng of the National Defense Bureau, but his determination at the critical moment is no worse: "Explain the situation to the People''s Liberation Army troops and request reinforcements. The remaining people, follow me up the embankment!" ?The breach at the scene was like the gaping mouth of a dragon, with torrential water pouring down into Xunyang City. There are 4.5 million people who have nowhere to move. The 60-meter-wide breach itself would not cause the situation to get out of control, but as the saying goes, a thousand-mile **** was destroyed in an ant nest. If such a breach cannot be controlled in a short time, it may even trigger the collapse of the entire embankment. This hole must be blocked. The specific method of blocking will have to be decided by experts from the water conservancy department. But no matter what method is used, the first step must be to reduce the flow rate and flow rate. Otherwise, any building materials and construction equipment will not be able to operate normally in the surging river water. Have you deployed according to the emergency plan? ??Liao Xinmin asked the on-site staff next to him. We had already deployed it when the spring phenomenon was discovered, but the flood level in our plan was far from the current situation, and it was a drop in the bucket. The latters body and face were almost completely covered with mud and water, and his tone was equally anxious: "Just now, shipowners from near Poyang Lake rushed over spontaneously and scuttled eight inland river coal ships with a total of 10,000 tons near the breach. It had a slight effect, but the current was too fast, especially the bottom of the ship was still It can pass through a large amount of water, causing the location of the sunken ship to continue to change. If new blocking items cannot be filled in, it may not be long before it will be washed away! " ?The cadres and masses participating in the rescue on the shore are throwing in all the gravel, rubble, and coal they can collect. But even a sunken ship of tens of thousands of tons cannot guarantee complete stability, let alone these small things, which disappear without a trace almost as soon as they are thrown into the water. Just when everyone was almost helpless, a shout came from not far behind. The Peoples Liberation Army is here, the Peoples Liberation Army is here! Liao Xinmin turned around suddenly and saw a convoy of hundreds of trucks on the distant road, like a long winding queue, heading towards the embankment. With the arrival of the People''s Liberation Army, there is hope. Hurry, prepare the relevant information and the current situation of the breach, and do your best to cooperate with the comrades in the army in disaster relief! The first person to lead the team was Wang Hong, the commander of the 2nd Regiment of the 1st Division of the Jinling Military Region. After hearing a brief report, he went to the breach to check the situation in person. We have tried using shipwrecks, gravel, and sandbags, but they all failed to hold and were quickly washed away. ??Liao Xinmin wiped the sweat or river water on his face and said to Wang Hong, who was looking around to observe. Normally, in this case, blockages alone are not enough. You need to drive wooden piles and steel bars into the river bed to form a cage-like structure, and then throw gravel bags and sandbags inside. Before setting off, he had already consulted with his senior superiors who had relevant experience, so he had already made preparations in this regard. But how can we push things into such a large amount of water? Liao Xinmin was dumbfounded when he heard this answer. To construct in water, you need to use blocking materials to reduce the flow speed. And to reduce the flow speed, you need to drive wooden piles and steel bars into the water first? Leave it to us. After Wang Hong finished speaking, he asked for a wrist-thick rope from the staff behind him, tied it around his waist, and then took the loudspeaker used for shouting from Liao Xinmin. All cadres at company level and above, get out! Soon, the several hundred selected commandos tied themselves into several strings with ropes, and the people who stayed on the shore held on to the other end of the ropes. Immediately afterwards, Wang Hong took off the hat on his head and jumped into the river first. ?Hindered by several human walls, the raging water finally slowed down slightly. Other people who came up with reinforcements from behind began to throw sandbags into the middle of the human wall. Although most of it will still be washed away, at least it has begun to have some effect. It is impossible for trucks transporting supplies to drive directly onto the embankment, so the last section of the road can only be completed entirely by manpower. Half an hour later, the first wooden pile was successfully driven into the bottom of the river bed, finally giving the nearby crumbling human wall a new support point...Although the situation has made progress, the efficiency is still not high. ??Moreover, the risk is high. At the beginning, it was fine when everyone had plenty of energy, but as time passed, everyone''s energy was rapidly drained from being immersed in the flood for a long time. Some soldiers with weaker physical strength were almost washed away. Of course, people on the shore and in the water are also rotating, but due to the tight manpower, they have to be responsible for carrying disaster relief materials even on the shore, which cannot guarantee adequate rest... Two days passed like this. The breach has been initially controlled, but the flood is still pouring outward at a flow rate of more than 130 cubic meters/second and a flow rate of 5 meters/second. According to the plugging plan, after the breach is initially controlled, a half-moon-shaped cofferdam should be formed in the area to prepare for the subsequent filling and embankment work. But because Wang Hong and others used ropes to secure themselves when they first went down, it was really difficult to make the cofferdam into a half-moon shape. It can only expand outward little by little on the basis of a straight line. ?However, after two days of continuous high-intensity work, the commanders and fighters of the three regiments participating in the flood fight themselves have almost reached their limit. Many people have fallen into coma or even gone into shock due to overexertion, and have been sent to makeshift field hospitals nearby. ?The on-site commander was heartbroken, but there was nothing he could do. In fact, he has already sent his own sons who are currently serving as company commanders. One division has no reserves. Deputy Commander Dong, the head of the 2nd Regiment just reported that a new batch of strange relief supplies have been sent to us. The deputy chief of staff of the Jinling Military Region came over and whispered a report in his ear. "strangeness?" ?The long-term lack of sleep caused the commander-in-chief to be stunned for a moment before he reacted: Lets go and have a look. ??When he came to the disaster relief material distribution center near the embankment, he saw Wang Hong communicating with a man in casual clothes opposite. Next to it are two large bags unloaded from the car. ??tarpaulin material. One of them has been opened, and inside is... Something that looks like a sack. "what''s the situation?" Reporting to the commander-in-chief, this is a new batch of disaster relief materials. Comrades from the Zhejiang Provincial Bureau of Science and Industry are introducing us to the precautions for use. ?Wang Hong came up, saluted, and replied. "that''s it?" The commander-in-chief picked up a corner of a bag from the side and weighed it. Its flat, takes up almost no space, and seems to weigh less than one-tenth of a sandbag. The casually dressed staff member next to him nodded: Yes, this is a flood-proof expansion bag that we rushed to produce. The first batch now totals 10,000, and more are being produced and transported in the future. Although it looks very small now, as long as it is thrown into the water, it will become slightly larger than a standard sandbag within ten seconds and weigh about the same, which can greatly reduce the physical burden of the soldiers. In addition, there are prefabricated steel plate beams on the vehicle, which can be assembled on site with bolts. Their ability to resist water flow impact is much stronger than ordinary steel cages..." Hearing these last words, the commander-in-chief thought of the young faces that had fallen in front of him in the past two days, his eyes turned red, and he quickly turned his head slightly. Commander Wang, let your troops try it! "yes!" Actually, after hearing the other partys introduction, Wang Hong was still a little doubtful. Mainly because this description is so amazing. ?When people encounter particularly big good news, their first reaction is often to doubt its authenticity. ?But anyway, this kind of expansion bag is very easy to carry. He can carry a dozen of them by himself, so it doesnt hurt to give it a try. In case it is useful. He called a few people and took out a total of 100 expansion bags from the first waterproof bag. The sharp-eyed warrior noticed that the word "Xi soil" was printed on the surface of the bag. ?Wang Hong has read some books and knows that this seems to have something to do with the legendary Dayu. The jackpot is pretty good. ??But if we look deeper, Dayu and his elders used dredging methods to control water, and now this thing is obviously used to block... The group quickly returned to the vicinity of the breach. Wang Hong personally threw the first expansion bag into the water flow. Then, amid the stunned expressions of several people, this thin bag, which was expected to be washed away in an instant, actually expanded rapidly as the person from the Science and Industry Bureau just said. Finally, it was blocked by two wooden stakes at the back, which perfectly played the role of sandbags. TMDis it really useful? ?Wang Hongs shock instantly turned into ecstasy. Even if we do not consider the steel plate beams whose effects have not been tested, this expansion bag alone is enough to increase the rescue efficiency by 10 times! Hurry, send someone to move some more, and well speed up the progress! After reacting, he directly threw the remaining ten expansion bags into the water, then turned around and shouted an order to the staff officer behind him. In addition, according to this efficiency, we can block the opening before nightfall today and tell the engineers to prepare to fill the pond and consolidate the embankment! (End of this chapter) Chapter 386 The merit lies in the future! Chapter 386: Great work! ??When the dozen expansion bags thrown by Wang Hong became as big as sandbags in a short period of time, and finally sank to the bottom of the river, everyone around them who was watching all this was shocked. Then he quickly threw the expansion bag in his hand into the water. 100 in total. They accumulated in the river and have even become a line of defense that has begun to take shape. ?Of course, in terms of the entire ulcer area, the effect of these 100 expansion bags is not worth mentioning. ??But this is what less than ten of them achieved in a few minutes. It didnt even consume much physical strength. This is the power of technology. Commander, this thing... is simply amazing! ??The regiment chief of staff who was following Wang Hong slapped his thigh and smiled from ear to ear, revealing two rows of white teeth on his face that was already covered with sand: Ill take my people and put all the 10,000 expansion bags in! "Wait a moment!" ?Wang Hong called the chief of staff from behind: Remember to arrange for each company to take turns to rest. I think some soldiers are almost reaching their limit. If they continue to hold on, there may be problems. As soldiers, they are not afraid of hardship or fatigue. But flesh and blood has its limits after all. Each person can only carry one bag of sandbags weighing 20-25 kilograms at most at a time, and even warriors with excellent physical fitness will become weak and exhausted after several consecutive trips, not to mention that almost everyone has been doing this for two days. I didn''t sleep a wink for two nights. ??There are many people who are even slightly injured and cannot get out of the firing line, and are so tired that they vomit blood and faint. As for those whose hands are worn out and whose fingernails are worn off, there are countless others. The thing in front of them can undoubtedly greatly reduce their work intensity. Its not just the difference that everyone can relax a little bit. More importantly, after efficiency increases by an order of magnitude, there is no longer a need to tie everyone to the embankment. It also means that after working continuously for two days, the commanders and fighters of the three regiments responsible for blocking the Xunyang Embankment can finally take turns to rest. At this time, abundant physical strength is fighting power. ?Many martyrs who sacrificed their lives in flood fighting and rescue operations fell down due to lack of physical strength or were washed away by floods. "yes!" The chief of staff saluted Wang Hong. In addition, let the comrades in the cooking class use the existing conditions to try their best to get some hot meals, even hot water, so that the comrades can recover. After assigning tasks to his staff board, Wang Hong himself did not rest, but once again took people to the material distribution center next to the dam. ? He ??still remembered that along with the flood-proof expansion bags, there were a bunch of "unremarkable" steel plate beams. Before, he didn''t pay attention to it because it was too heavy, but now... Since the expansion bag is so easy to use, the steel plate beam used with it may not bring any surprises. ??Wang Hong felt that the fatigue accumulated in him over the past two days had been wiped away. They moved the first set of bulk steel plate girder components as quickly as possible. Then, under the guidance of the comrade from the Zhejiang Provincial Science and Industry Bureau, it took about fifteen minutes to assemble them together. ?The originally ordinary steel structural members formed a slightly strange cage-like structure after being spliced ??together. ?Following the instructions for use, just put a dozen expansion bags into different positions of the steel plate beam, and then throw them into the water in a specific direction. The entire assembled structure is not light and requires four or five people to lift it with all their strength. But fortunately, only the last step needs to be moved as a whole, before it was all separated. "One, two, three!" Several people worked together to throw this strange-shaped thing into the water as required. ?According to their past experience, even metal products of this weight will roll or shift under the impact of the water flow after being thrown in. It has to be fixed to the river bed below by manpower. ?This is also why although the length of the breach has been controlled, a considerable number of soldiers still have to be soaked in the water - Otherwise, the previously fixed steel bars and wooden piles will be easily disrupted again. However, this time, the situation is a little different. The roaring flood seemed to have been relieved of its force, only making the steel plate beams shake a few times at the beginning. But as the expansion bags inside absorb water and fill the gaps, the entire structure becomes rock solid. It seems like... it could work better than wooden piles, steel bars and gravel packs? ?At this time, Wang Hong and others almost discovered a whole new world. There is such useful equipment Almost everyone can see that the combination of flood control expansion bags and detachable steel plate girders can directly reduce the risk and difficulty of flood relief by several orders of magnitude. Even local flood control departments, which are less organized and less professional, can still take on a considerable part of the dangers that in the past had to be handled by the People''s Liberation Army. The militarys first priority is to fight, after all. It is impossible to prepare for disaster relief at all times, so most of the time it is impossible to be the first to arrive at the scene. Just like the situation with the Xunyang Levee this time, if the Xunyang defense manager who responded first had these things on hand when he discovered the hidden danger of the dam breach, he could at least delay it for a long time, or prevent the breach from continuing when it first appeared. expansion. ?With the help of two new types of equipment, the second step of the task of blocking the Xunyang Embankment was successfully completed in the evening of that day. The engineers who were already on standby quickly used the prepared bags of clay, anti-seepage cloth and quick-drying cement to reinforce the temporary embankment structure that took tens of thousands of soldiers two days to build. At this point, the breach sealing project is fully completed! ?The on-site commander was standing next to the newly repaired breach, watching all this with tears in his eyes. ?As long as he turned his head slightly, he could see the lights in Xunyang City in the distance. ?Although there was some impact there, because the breach was repaired in time, it did not cause too serious losses. At the same time, the soldiers he brought from the Jinling Military Region were all safe and sound! Bring back as much as you bring out. This is the goal the commander-in-chief set for himself before leading the team. ?However, he also knows how difficult it is to avoid any losses in the face of a natural disaster of this level. So he had never mentioned it to anyone before. But now its really done. "Well done... You are all well done... You can''t find such good warriors anywhere, who can fight and endure hardships!" ?Standing in front of the three main regiment leaders, the commander-in-chief''s tone was choked with sobs. "Deputy Commander Dong, this time we were able to successfully complete the breach sealing task within 60 hours. In addition to the hard work of the soldiers, it was also inseparable from the two batches of comrades from the Zhejiang Provincial Bureau of Science and Industry who sent us at the most critical moment. Supplies. Wang Hong was certainly very excited to be praised by the other party, but after thinking about it, he felt that he still couldn''t be greedy for credit and had to explain the effects of the two key pieces of equipment: I think our experience should be promoted, preferably by other comrades who are also involved in disaster relief. The commander-in-chief, who calmed down his emotions, nodded, but with a clear tone: "I know, in the afternoon, I have noticed that your gagging efficiency has increased nearly ten times. This is definitely not something that can be achieved by working harder, so I went to consult the comrade from the Science and Industry Bureau. " "He said that this is a production task assigned to them directly from the Commission of Science, Technology and Industry for National Defense, and it is available all over the country. After it is built, it will be transported to the disaster-stricken areas in need nearby, so I think other places should cooperate with us. Same thing, Ive already used the two types of equipment you mentioned. Speaking of this, the commander-in-chief took out an expansion bag that had not been thrown into the water from the side, unfolded it in front of him and looked at it carefully. Its really unbelievable. Its hard to imagine that such a thin bag can become about the same size and weight as a sandbag once its wet with water..." China has always been a country prone to serious floods. The people who invented these two things deserve great credit! Thanks to the book friend [Fragrant Rice] for the 10,000 starting coins! (End of this chapter) Chapter 387 Game from outer space Chapter 387 Game from Outer Space ??The Xunyang Yangtze River Levee breach sealing project was completed in less than three days, which is a huge encouragement to the flood control work in the entire Yangtze River Basin. Similar plots also occurred along almost all the banks of the Yangtze River, Songhua River and Nen River These are also the three river systems most threatened by floods. ?Three days ago, when the breach in Xunyang just appeared, the Jiangling area was also facing the surging sixth wave of floods. ??Although the levees there are still standing, springs have been found in many places. That is, under the action of seepage. The fine particles of soil form pores along the skeleton particles, and the increase in the flow rate of water in the soil pores causes the fine particles of soil to be washed away. Obviously, finding this kind of situation on the embankment means that cracks have appeared on the water surface of the embankment. If it cannot be dealt with immediately, it will affect the safety of the entire embankment. The Xunyang Embankment breached within a short period of time after the bubble phenomenon was discovered. It is not impossible to eliminate hidden dangers. Its just that the difficulty is not any lower than sealing the breach. Since it is impossible to determine the specific location of the breach on the water surface, it is unrealistic to dump a large number of sandbags enough to cover the embankment surface in a short period of time. Therefore, it is generally necessary to find soldiers with good water resistance and dive into the water with sandbags to find the specific spring. After the position is determined, fill the blockage accurately. There is no need to elaborate on the risks involved. Just diving with a sandbag weighing more than 20 kilograms is almost impossible for most people. You must know that no place has the conditions to provide professional diving equipment to so many warriors. So its almost all about physical resistance. Fortunately, although the Tashan Garrison Hero Regiment became famous for its battle in the northeast, it has been stationed in the south for a long time after the founding of the People''s Republic of China. Its sources of troops generally come from the south, especially the coastal areas, and there are many warriors with good water skills. But even so, the situation is getting increasingly difficult. ?At this time, it was also learned that the dam had broken in the Xunyang section downstream. For the defense command center, this was undoubtedly the last straw that could affect decision-making. No, it should be said to be a huge rock. Whether or not to release the sixth wave has become a question lingering in everyone''s mind. If it is not released, not only will the Gangneung Dam be in great danger, but the flood peak flowing downstream will also affect the downstream areas. ? Its just that as the Yangtze River Defense Chief who is in charge of the overall situation, the amount of information they have is incomparable to that of Xunyang. Before arriving from the capital, the commander-in-chief listened to reports from the General Armament Department and the Commission of Science, Technology and Industry for National Defense. ?In addition to common urgently needed equipment for disaster relief such as construction machinery, helicopters and trucks, Ding Gaoheng and Cao Gangchun also focused on two other things. One is a high-altitude balloon that can carry out signal relay. ??Although ionospheric transmission in the VHF band can certainly guarantee communications between Jiangling and Beijing on land, it is obviously impossible for both the disaster-stricken people and grassroots units to have such professional equipment. Therefore, when someone reported that the satellite communication phone was out of service a few days ago, the commander-in-chief felt that his heartbeat stopped for a moment. Information uploading and dissemination are not smooth enough, which is fatal in a rapidly changing situation. ?With the mentality of almost treating a dead horse as a living horse, they activated the frequency band corresponding to this high-altitude signal relay station. Then, it was connected. Although the call quality is a little rough, the voice from the other side does come out of the receiver. The content of the report is: "A village in Balingshan Town suffered from severe waterlogging. Three families were trapped on their roofs before they could evacuate." In the following period, the reason why the frontline headquarters was able to understand the flood control dynamics in Jiangling and even the entire Hubei Province in near real-time under extremely poor communication conditions largely relied on this high-altitude balloon. ??After this experience, the commander-in-chief couldn''t help but have great expectations for another piece of equipment, the modular flood control reinforcement kit named "Xi soil". ? As the disaster situation in Hubei Province is more serious, most local factories are unable to maintain stable production. Therefore, many of the flood control equipment supplied here are produced in Sichuan and Shaanxi. Under the urgent situation, the commander-in-chief even directly ordered to mobilize two helicopters of the Army Aviation Force, and took advantage of the light rain to transport a batch of temporarily produced equipment to Jiangling. And he himself followed this batch of equipment directly to the vicinity of the embankment. Captain Huang, have you tried out the newly arrived equipment? ?After seeing the soaked Huang Linqun, the commander-in-chief''s first words came straight to the point. "We are trying it out now. The effect of the expansion bag is as described in the instructions. After being soaked in water, it will become similar to a sandbag. Our current solution is to put two layers of impermeable plastic bags on the outside. Soldiers can take it with them to find the need. After sealing the position, remove the plastic bag. The commander-in-chief nodded. ?It seems that in just half an hour, frontline units have developed new usage that suits them according to local conditions.?????Next, its time to look at the final effect. Just a few seconds after Huang Linqun finished speaking, a person emerged from under the water. Commander, it works, it works! Give me a few more bags, and Ill go down two more times at most, and Ill be able to completely block it! Since one person can carry nearly ten bags before they are soaked, rather complicated secondary processing is required before entering the water, and sealing must be ensured. Therefore, the pressure is now on the side of the people staying on the shore. . Captain Huang, now that there are so few people who need to go into the water, can we use the diving equipment? The commander-in-chief wiped the rain off his head and said. Weve already sent people to get it. It used to take a platoon of soldiers to block the mouth of a spring, and a few sets of equipment were useless. But now its enough for three people to go down, and the equipment support can keep up. Only twenty minutes later, several soldiers responsible for diving completed all tasks and landed successfully. Soon someone brought blankets and hot water. Before, even the people in the cooking class and the logistics department had to work in the water. Now that the pressure is less, I let them go back to take charge of their own work. Doing a good job in logistics is also a guarantee of combat effectiveness. Huang Linqun noticed the commander-in-chief''s gaze and explained. The latter walked directly over: Lets go and see the heroes who just came up. ?Seeing Huang Linqun and another person with a high status visually approaching, the soldiers who were resting under a tent made of raincloth stood up one after another. ?The sharp-eyed commander-in-chief will notice that the hands of several people holding the kettles are shaking slightly. He did not speak in the end, just looked for a moment and then turned away. What a good warrior The commander-in-chief took off his glasses, wiped them with the corner of his clothes, and said with emotion. "Yes, our regiment also has a soldier recruited from Qiong Province. He was originally a son of a wealthy family and became a soldier through connections. But before going to the embankment, he handed me a party application form, and then he never went down again. He was a soldier for several days in a row. Tiandu was responsible for the diving operations until just now. I was really worried about something going wrong, so I left him on the shore and was responsible for sealing the expansion bags, so that he could continue to go into the water without making a fuss..." The army is a melting pot, the best place to train people. Write down the names of outstanding performers and publicize them, vigorously publicize them! The commander put on his glasses again, then quickly turned around and left. After seeing the situation at the scene, he finally strengthened his determination to continue not to release floodwaters. Also, the production of new flood control equipment must be accelerated! Chang Haonan, who is far away in the capital, naturally has no way or possibility to visit the flood relief site in person, but thanks to the advancement of technology, he can still see many on-site scenes of rescue and disaster relief through TV while leading Sun Huizhong to design the DSI air inlet. . This naturally includes the thrilling work of blocking the Xunyang Embankment. ?In addition, Cao Gangchun also specifically asked the General Office of the General Armament Department to send a copy of the feedback sent to him to Chang Haonan. If the content is sensitive, we will take it over. ?This allows the latter to see a lot of content that is not reported on TV news. For example, the evaluation of Xi soil in various places. ??Of course there are some suggestions for improvement. ?For example, Jiangling hopes to put a waterproof film on each expansion bag when it leaves the factory. Although there are many bright spots in this disaster relief, judging from the feedback, there are still many shortcomings, especially at the equipment level. ?Chao Gangchun took out a cigarette and put it under his nose, smelled it, and then stuffed it back into the cigarette case: The satellite phone we imported suddenly failed to find satellite signals and could not be connected at the most critical moment. If it hadnt been for the high-altitude airship jointly developed by you and Zhejiang University, there would have been a big problem in Hubei Province. "Furthermore, we have had many helicopter pilots report that their self-purchased GPS positioning equipment has been interfered with. Some of them malfunctioned. Although some of them were functional, the position and altitude errors were seriously increased. There was even a crew in Hubei Province who rescued people after rescuing people. Because of the wrong navigation, the plane went astray, and if there were not local people on board who were familiar with the situation, it would have almost hit the mountain. " Someone is taking advantage of this opportunity to give us eye drops (End of this chapter) Chapter 388 GPS jamming, we can do it too! Chapter 388 GPS interference, we can do it too! ??When Cao Gangchun said this, Chang Haonan happened to read the specific incident feedback from the Hubei Provincial Newspaper. ?With this kind of thing, you know who is behind it without even thinking about it. ?Although there is no evidence, there is no need for evidence. No matter where in the world, whenever something bad happens, the first country that comes to everyones subconscious mind is always the same country. ?It is already obvious who the problem is. ?It cant be that the whole world is wrong, right? Besides, there is still the Galaxy incident ahead. We have caused such a big loss to the Americans in the Boeing-McDonnell Douglas merger this year. It is not surprising that they are so angry now that they will come back with some dirty tricks. ??Ding Gaoheng, who was sitting next to him, spoke with disdain, but his tone was indeed quite solemn. After all, given Chinas current comprehensive national strength, it is indeed difficult to achieve much in a short period of time in a place like the space field where money is burned like crazy. Shortcomings in long-distance communications can be made up for in other ways, but navigation and positioning are indeed inseparable from satellites. ??Although the independently developed satellite navigation system "Beidou" has been approved, it is not expected to be completed until the new century. ? And the constellation itself, which consists of only three satellites, also has a very strong experimental meaning. As for the communication satellite group, the investment required is even more exaggerated... In short, it seems that there are no countermeasures available at the moment. Cao Gangchun, who knew all this very well, could only sigh: Alas...this account still needs to be written down. Its not counted now, but it will have to be settled sooner or later in the future! Is this... ?Chang Haonan put the report in his hand on the table next to him: Although it is indeed impossible for us to create a comprehensive replacement for US satellite services within a few years, if we just want to give the other party a peer threat, there should still be hope. Ding Gaoheng had long been used to it, and he just looked over with a little curiosity in his eyes. Comrade Chang Haonan has always been relatively good at opening up ideas. ??But Cao Gangchun, who had just been transferred from the position of deputy chief of staff, was still relatively unfamiliar with this situation. He immediately sat upright, leaning on the back of the chair: Is there any way to replace GPS without using satellites? After the disintegration of the Soviet Union, although Russia still built the GLONASS system consisting of 24 satellites from 1993 to 1995, due to the short lifespan of the satellites and lack of maintenance, by the late 1990s, some satellites had begun to expire. It became increasingly difficult to maintain navigation services around the world. More importantly, due to the lack of commercialization model, they do not provide civilian services outside the CIS. At present, most domestic applications of satellite positioning systems are for civilian needs. So GPS is now a completely monopoly business. Its still a bit difficult to replace GPS Chang Haonan replied: I mean, if they can mess with satellite signals, so can we. Cao Gangchun, who felt a little unsure, subconsciously looked at Ding Gaoheng next to him, only to find that the latter was sitting on the sofa, looking like an old god. ?This time it seemed that he was a little surprised just now. ?So Cao Gangchun took a deep breath and leaned back on the backrest, making himself appear almost as usual: But we cant control the operation of GPS satellites like the Americans, so how can we do anything about it? ?After about half a second, he guessed again in an uncertain tone: Ive heard that as long as a computer is connected to the Internet, it may be controlled by others. Do you want to use this method? After all, he is the leader of the General Armament Department. At present, the army has begun the construction of an intranet that is physically isolated from the outside Internet, so he knows a little bit about this aspect. ??It''s just that it has nothing to do with Chang Haonan''s actual thoughts. Thats not the case. Hearing such outrageous speculation, Chang Haonan quickly waved his hand: "Even if you can invade the NASA network, I am afraid that you will not be able to directly control the extent of the permissions of the other party. You can break the Internet if you do nt help them ... I am talking about another method." The satellite sends undifferentiated broadcasts to an area, and the ground terminal is completely passive. After receiving the satellite signal, the terminal itself performs coordinate calculation. " "The advantage of this is that the positioning terminal does not need to send any signals and can ensure radio silence. There is no need to worry about exposing the target during the positioning process, and there is no need to rely too much on the ground station. But after all, it is one-way communication and there is no problem of interrogating signals, and the terminal itself Its performance and robustness are very poor, so it has inherent shortcomings in anti-interference and anti-spoofing capabilities. ?This time, Ding Gaoheng, who had been unresponsive just now, reacted almost immediately. ?After all, he has a background in aerospace, and he even happens to be an expert in navigation systems. You mean, we can send the positioning terminal a signal in the same frequency band as the GPS satellite, thus interfering with its information interpretation and finally generating an erroneous position data? Chang Haonan nodded: "Yes, in theory, this principle is similar to forwarding jamming, except that it eliminates the step of the jammer receiving and deciphering the signal. It should be essentially similar to the jamming pod we previously developed for the JH-7, but Because the performance of the GPS terminal is weaker than that of the radar terminal of the fighter jet, and it does not involve the issue of frequency agility, it is much less difficult. It''s really easy to talk to people who are familiar with it. It only takes a little bit of effort to get through. This principle should be no problem, but Xiao Chang, modern satellite signal receiving antennas are generally directional and will only receive signals from above. Should our jammer... also be installed on an airplane? Although Ding Gaoheng is no longer on the front line of scientific research, he still understands the basic situation of technological development. "Yes, yes, and if the Americans do this, they can use excuses such as satellite malfunctions to get over it. We don''t do their bullying thing. We certainly can''t target third parties. We can''t let planes fly to the mainland of the United States. Are you going to interfere?" Cao Gangchun also said immediately. "Of course it is possible to put it on the aircraft. When the 601''s domestically produced J-11 is developing a self-defense jamming pod, you can consider adding this function, which can increase a lot of efficiency in the process of fighting satellite-guided cruise missiles. " Chang Haonan first confirmed Ding Gaoheng''s idea, and took the cruise missile, which our military was most worried about in the late 1990s, as an imaginary target, instantly changing the issue of GPS interference from "simply regaining face" to "a necessity for military struggle preparations". equipment technology. You should know that although the new three attacks and three defenses of "attacking stealth aircraft, attacking cruise missiles, and attacking armed helicopters; preventing precision strikes, preventing electronic jamming, and preventing reconnaissance and surveillance" have not been systematically proposed as a concept, they have been influenced by the previous several times. Due to the impact of local wars, some key units have begun to be organized from top to bottom to conduct relevant combat testing and training. ?In the original timeline, the final design review of the PL-11 missile was to shoot down several YJ-82 target missiles that simulated Tomahawks in the South China Sea. ??So allowing the J-11, which originally had average downward-looking and downward-shooting capabilities, to intercept cruise missiles, or through soft-kill one-to-many interception, will definitely have a huge appeal to superior units. ?Of course, this is not Chang Haonans ultimate goal. After all, with the introduction of a series of new small-caliber anti-aircraft guns such as PGZ95 and PG99, the threat of ordinary cruise missiles such as Tomahawk will soon plummet. "However, as Minister Cao said, the restrictions on the aircraft platform are still greater after all, so we can still consider using the scattering effect of the ionosphere or meteor remnants to allow jammers placed on the ground to obtain signals similar to those of satellites Of course, the specific operation method may need to be studied and demonstrated after I go back. " Cao Gangchun and Ding Gaoheng looked at each other. Chang Haonans idea simultaneously hits the two most critical demands of the Peoples Liberation Army, namely combating cruise missiles and preventing precision strikes. Ground-side jammers can be placed at key locations such as headquarters or core positions to interfere with enemy satellite-guided weapons at the very end, causing them to deviate from their targets. "Well...if it can be done, it will definitely be a huge improvement for our army''s ability to resist foreign enemy interference in the new era." Cao Gangchun, who was in charge of equipment, immediately spoke and affirmed. Although his statement cannot be used as the final decision, it is obviously still quite weighty. "But two leaders, this matter cannot be urgent for the time being. We need the Americans to cooperate with us." ?Chang Haonan rubbed his hands gently. "How to say?" Ding Gaoheng showed a smile. He knew that whenever the other party made such expressions and actions, he was coming up with some weird idea. Given the current situation in which Americans do not take any country in the world seriously, they will definitely not be able to continue in an honest manner. I am afraid that within a few years, they will have to find excuses to fight a new war. Normally we cant just go to other peoples homes and cause disturbance, but if a local conflict breaks out, the situation will be completely different. In the final analysis, the electronic jammer is still a soft-kill defensive equipment. It can be smuggled over in the name of humanitarian relief supplies or similar, and catch the other side by surprise! (End of this chapter) Chapter 389 Get a patent license in exchange for a big prize Chapter 389: Get a patent license in exchange for a grand prize ?Chang Haonans idea about satellite jamming equipment finally settled on Cao Gangchuns side. ??It''s just that we will not make independent project allocations for the time being. Instead, as the former said at the beginning, we will put them into the supporting equipment of Project 11 for advanced research and development in the name of airborne interference pods. ?On the one hand, the independent project establishment process is more cumbersome, and on the other hand, it is also considered that the movement in this way is smaller and less noticeable. ??Military intelligence is launching a high-level internal investigation into what happened early last year. At present, different intelligence details are disclosed to all suspected targets by dividing them into blocks, and then scope screening is carried out through fishing methods. Some preliminary results have been obtained. In general, there is a mole. Although based on the previous situation analysis, the leaked information should be limited to the field of missile engineering, but it is definitely right to be careful. ?After various places along the Yangtze River successfully withstood the sixth wave of flood peaks, the most worrying stage of the situation has basically passed. Although for the commanders and flood prevention staff on the front line, the battle is far from over. They will still have to wait for the water level to drop below a safe height and prevent secondary disasters derived from floods. It is estimated that they will need to persist for about a while. One month''s time. ??However, judging from the results of the weather forecast, the risk of subsequent disasters will continue to decrease. Chang Haonan and the others are just relaxing a little now, but it is not half-time to open the champagne. Therefore, after understanding the overall application of his two technologies and confirming the GPS jammer, Chang Haonan was ready to leave directly. As the design of Coach 9 and the simulation software has come to an end, the workload he has to undertake in terms of technology has been much smaller recently, but as the actual person in charge of the laboratory, there are still a lot of administrative work that must be done or signed by him. Finish. And Chang Jiayaos college entrance examination results will be out soon. ?According to normal progress, the judgment should have been completed by the end of July, but this year''s nationwide floods have still affected the progress. Just when Chang Haonan was about to get up, the phone on Cao Gangchun''s desk suddenly rang. After he picked it up, he immediately stopped the former: Xiao Chang, please wait a moment. ?Chang Haonan was a little confused, but he still stood still. Soon, a major officer knocked on the door of the room and handed a kraft paper file bag to Cao Gangchun. "This is" ?Chang Haonan looked at the thing in the other person''s hand with some curiosity. His intuition told him that this should have something to do with him. Your invention patent is about soil flood control reinforcement kit. Chao Gangchun said as he opened the file bag, pulled out a document inside and handed it to Chang Haonan. "So fast?" The latter took it and looked at it a few times, and couldn''t help but be a little surprised. ??Although special equipment for disaster relief is not listed as unpatentable like methods of diagnosis and treatment of diseases, if you really want to make a lot of money from it, it is still relatively hot to get this kind of money. ??It would be fine if he was just an ordinary business owner or researcher, but Chang Haonan also holds many influential positions in the form of special affairs. In this kind of place, you should pay more attention to your image. Moreover, the scale of this year''s flood is even larger than that of 1998 in the previous life. It is a major event that will definitely be recorded in history. At this juncture, in terms of his indirect contribution to disaster relief, patent fees are actually the most important. Unimportant stuff. It is far better to show some integrity and use this money in exchange for a higher level of influence. So at the beginning, Chang Haonan didn''t even think about this issue too carefully. But after some careful consideration, he still felt that the patent should be registered. Not only register, but also register in his own name, not in the name of the project team. First of all, this is the lesson learned from Yunnan Baiyao. ?He didnt register, and if someone took advantage of the loophole to register and use it to make money, it would be a huge loss. On the other hand, this patent is also proof of his contribution to this flood relief. Even from a more utilitarian perspective, registering a patent and then licensing it to companies and factories involved in the production of disaster relief materials for free would have a greater impact than keeping silent at all. So, on the day when the two design drawings were submitted to the Commission of Science, Technology and Industry for National Defense, Chang Haonan raised the patent issues related to these two things. ?Of course, the starch-based water-absorbent polymer contained in the expansion bag is not his work. Fortunately, this can also be replaced by other absorbent materials with similar properties, so it will not affect the validity of the patent. ??However, having worked in research for two lifetimes, he is very aware of the working efficiency of the patent office. Three months will be considered a quick review. So I didnt pay much attention to the progress after that. ??Anyway, with his current status and the influence of "Xi soil", there is no need to worry about getting through. But Chang Haonan was shocked that the entire process had been completed in only about a week. Cao Gangchuns answer is very direct: Lao Ding and I came forward and directly contacted the National Science and Technology Commission and asked them to expedite the matter. Chang Haonan understood instantly. ?At this time, the Huaxia Patent Office was still an organization managed by the State Science and Technology Commission. It was not a unit directly under the later gwy, so it was directly led by Song Jian. With this relationship, the efficiency will naturally be very fast. After confirming that the patent document was correct, Chang Haonan immediately expressed his intention to issue a free license: Minister Cao, Director Ding, considering the special nature of disaster prevention and rescue supplies, I am not prepared to use this national treasure, so I want to make a conditional authorization statement. All enterprises and individuals within mainland China can use all relevant patents related to the Xi soil flood control reinforcement kit for free, but the condition is that they cannot make profits through this patent, otherwise they will still have to pay the licensing fee as usual. After hearing these words, Cao Gangchun''s eyes lit up, while Ding Gaoheng''s expression was "It''s just as I expected." The latter had long expected that, given Chang Haonans character, registering a patent must be to facilitate his own free licensing. So he had already thought about the following things before: Xiao Chang, dont rush about the patent authorization statement. Ill report it to you first. You may be required to cooperate with the publicity department and publish it at the appropriate time. ?There is always something to pursue in a person''s life, no matter whether it is noble or vulgar. ?Now that Chang Haonan has made it clear that what he wants this time is not money, he obviously has other ideas. As for the specific aspects, it is not difficult to guess: If nothing else happens, in addition to the special commemorative honors after the flood fighting is over, next years National Science and Technology Award should also be indispensable for you. Then the following matters will be troublesome to the two leaders. ?Chang Haonan showed a satisfied smile. At this time, the highest science and technology award has not yet been established, so the only one he may be eligible for is a technology invention award. As for the evaluation principles of this award, in addition to the fact that it must be a technology that has not been invented by previous people as the name implies, there are two other principles. They are advancedness and creativity and significant economic benefits or social benefits respectively. In terms of the advanced nature of Xirang''s equipment, Chang Haonan can honestly say that it is just that. Mainly a question of thinking. ?Compared with the special or first prize-winning achievements such as "Indica hybrid rice", "Latified swine fever attenuated vaccine", "High-yielding and rust-resistant wheat germplasm resources", they are somewhat less interesting. Therefore, we can only work **** economic benefits or social benefits I put forward my achievements to help the country overcome such a big difficulty. You must express it accordingly, right? Its just that we are all decent people, and there is no need to explain some things so clearly. After being briefly surprised, Cao Gangchun quickly realized Chang Haonan''s intention, and immediately nodded and assured: "Don''t worry. Although we don''t have the final say on this matter, there is still a chance to talk. Just go back and wait for the news." Brothers, recently my own project also requires year-end settlement and mid-term progress defense. Since the author is not as capable as Director Chang, he still has to put in some effort. I really dont have time to add more updates recently. I will add more after these few days of busy work. (End of this chapter) Chapter 390 Two interviews in three months? Chapter 390 Two interviews in three months? Since the nationwide flood fighting and rescue operation at the organizational level is still ongoing, according to the process, it is indeed not yet time to release the settlement screen, so Chang Haonan can only temporarily reconcile with the two leaders today. As for how much we can gain in the future, it depends not only on individual efforts, but also on the historical process. ?However, the efficiency shown by Ding Gaoheng and Cao Gangchun in this matter is indeed quite amazing. Two days later, Beijing Hang University Supercomputing Center. Chang Haonan and several other core technical personnel responsible for the overall design of the software and module function writing are gathering together to listen to Sun Huizhongs report on the overall aerodynamic design optimization of the new advanced trainer aircraft. Compared with the previous project of Professor Rui Xiaoting of Jinling University of Science and Technology on overall system dynamics analysis of long-range rocket launchers, what Guizhou Airlines is doing here is a more complex aircraft design. Although the calculation amount is not necessarily higher than the former, it is The advantage is that they are basically applied to almost all functions designed for software at this stage. And the trial version is also closer to the public beta version that will be launched for users soon. Although under the management and supervision of Chang Haonan, this set of things will definitely not have any major problems in the core numerical calculation methods and operating logic, but as a software, a user-oriented commercial software, in order to obtain a true sense of These core-level factors can only account for at most half of its success. The other half is user experience aspects such as human-computer interaction, I/O design and compatibility. This is also a part that the system is completely unable to handle. Most of the members of Chang Haonan''s project team are developers who major in computer science or applied mathematics and have little experience in the pain points of industrial software applications. However, Chang Haonan leads the entire development process and is too familiar with the software. It is so high that even if there is a problem, it is likely not to be experienced. ?It''s like writing a paper. Even if the author checks it ten times and hands it over to another person, he can often find new clerical errors. At this time, Sun Huizhong was standing in front of a blackboard, introducing the design process of the entire aircraft, while Chang Haonan was sitting below for the first time, opening a small notebook and taking notes. When he first started speaking, the former''s tone even trembled with excitement. After all, there are not many opportunities to give lectures to big bosses like this. Let me first introduce the overall design process of this type of aircraft, as well as the key technical indicators... "Compared with the J-7F aircraft, the overall structure after the 5845mm position remains unchanged, while the front is redesigned and uses the most cutting-edge DSI air inlet and nose retractable side strips to ensure that the angle of attack is 70. Maneuverability within range "The design points of the inlet are: the maximum Mach number Ma=1.3; the pre-compression bulge equivalent compression half-cone angle is 20; the height is 11km and the capture area is determined based on this. When the engine is in the maximum state within the range of Ma=0.7-1.1Ma The flow rate determines the throat area, and the throat Mach number is controlled at Ma=0.5-0.7..." "Considering that my own technical level is relatively limited, and that this model is improved from a mature and active model, I mainly used more traditional calculation methods throughout the design process, such as in the steady state of the whole machine. The improved surface element method is still used in the calculation of aerodynamic force. However, in the process of calculating the local convex hull curve of the DSI inlet, we still try to use the new nonlinear partial differential equations dimensionality reduction method provided in the software to calculate the N-S Equations are solved numerically Following Sun Huizhong''s introduction on the stage, the following people, especially those who had participated in some actual projects, began to write furiously. For a while, apart from the voice of the former speaking, there were only the occasional pages turning in the notebook or the keyboard while typing. Knocking sound. ?Due to the lack of previous experience in giving presentations on stage, Sun Huizhong''s introduction was somewhat indifferent, so it took a lot longer than expected. ?However, he finally said what everyone wanted to hear. Just as Sun Huizhong was preparing to finish, there was a sudden knock on the door of the conference room. ??Outside stood an administrative teacher from the supercomputing center. Director Chang, there is someone looking for you outside. Generally speaking, outsiders are not allowed to enter the computer room area without permission, so someone needs to report it. As for the other party to come directly into this kind of meeting, it is obviously impossible for it to be just anyone. Still have to go down and have a look. Fortunately, the really valuable content in the entire report has come to an end. As for the ending part... Its okay not to talk about it. ?So, just after he stood up and announced that the meeting would be suspended for a period of time, Sun Huizhong on the stage was almost instantly surrounded by several people who had been eager to try from the beginning. Gong Sun, do you think there is any room for improvement in the user interface of our software... Do you think the new fully automatic meshing method is easy to use... Is the technical instruction manual we included with the software comprehensive? Which multi-objective optimization strategy did you choose when designing... The questions that kept ringing in his ears made Sun Huizhong''s head feel as big as a bucket. Fortunately, before Chang Haonan left the venue, he didn''t forget to queue up the engineers who were eager to ask questions about the modules they were involved in. This gave the former time to ask questions one by one. respond. Huh...So Director Chang faces this kind of scene after every meeting..." Sun Huizhong, who finally breathed a sigh of relief, thought this way. On the other side, Chang Haonan, who was leaving the conference room, took out his mobile phone from his pocket and took a look. As expected, there were several missed calls. He muted his voice during the meeting just now, so he didnt even answer the call. It seems that the other party had no choice but to come directly to the door because he had not been contacted. ?While thinking about this, he had already arrived at the reception room near the entrance on the first floor of the supercomputing center. Several people are sitting inside. Chang Haonan actually knew one of the leaders - ??It was the CCTV female host who came to Beijing Airlines to do an exclusive interview with him just a few months ago after he won the China Youth May 4th Medal. Seeing Chang Haonan walking in from the door, the other party members immediately stood up. For this meeting, I should call you Director Chang. Good afternoon. The two shook hands. ? Even though Ni Ping was experienced and well prepared, he still couldn''t help feeling emotional when he faced Chang Haonan again. Others may not know the latters true age, but she knows it. After all, just three months ago, the other party was still an undergraduate student at Beijing Hang University. Calculating the time now, it turns out that not long after graduation, I have already started to hold leadership positions in the field of scientific research. Its simply outrageous, no one can rise so fast on a rocket. Ms. Ni, I havent seen you for a few months, but you are still as brilliant as ever. Chang Haonan is now a little used to this kind of scene, and knows that the best way to deal with it at the moment is to change the topic: I wonder how I can help this time? I have received a request from above to conduct another exclusive interview with you. The topic is about the set of flood-fighting and disaster relief equipment you developed, so I have no choice but to come here to bother you one more time. Ni Ping added an accent to the word "Zai". ?Indeed, even in the entire history of central media, it is rare to interview the same person twice within three months, and it is because of completely different things. ??Although Chang Haonan''s contribution this time is indeed not small, the fact that even official publicity can be arranged so quickly is probably inseparable from the work done by Ding Gaoheng and Cao Gangchun. For Chang Haonan, who has already had a similar experience, doing interviews is already a familiar task. ??And facing the camera again, he didnt feel as nervous as he did at the beginning. Then lets start now? ?Chang Haonan took advantage of the situation and sat opposite Ni Ping. You may have to appear on camera this time, so you should put on a simple makeup first, otherwise your face will be very dark. The latter immediately called the accompanying makeup artist. ??As Chang Haonan holds more and more positions and can mobilize more and more resources, his existence cannot be hidden. ? And the MA-60 project and aircraft anti-icing research, which had been used as shields before, have gradually failed to keep up with his progress. It just so happens that his contribution to the flood relief process this time perfectly meets the requirements for a "public reason for promotion": the influence is large enough, the research content is not sensitive, and there are very few people who know the inside story. ?Hence, it is normal to publicize it in a big way. ?This interview was much shorter than the previous one. Even including makeup and additional shots, it took less than forty minutes in total. ?Although the time is short, there is a lot of information in it. Especially focused on the glorious deeds of Chang Haonan, who made up his mind to license the patent to a manufacturer of flood control materials for free after learning about the flood. ?Of course, all the fragments in this story are true and there is absolutely no fabrication. ??It''s just that the order of occurrence has been slightly adjusted to highlight the high integrity of the interview subjects. As a principled person, Chang Haonan still hopes to fully restore all the facts. ?However, the other party insisted again and again, so he reluctantly agreed... ?In addition, some other news was revealed during the interview. ?For example, not only the front-line disaster relief officers and soldiers were full of praise for "Xi soil", but also the commander-in-chief of the entire river basin of this flood control mission also favored it. ?After the soil was successfully used to fill the Paoquan mouth of Gangneung Embankment, the latter not only asked the factories to quickly increase production, but even wrote an inscription in his own hand. Furthermore, in the phased report submitted above, a whole chapter was devoted to introducing the important role played by soil in flood relief. This is obviously huge good news for Chang Haonan, who has made up his mind to earn some influence for himself through this matter. (End of this chapter) Chapter 391 JJ9, and the multi-field simulator TORCHMul Chapter 391 Jijiao 9, and the multi-field simulator TORCHMultiphysics ??When Chang Haonan sent away the CCTV camera crew and returned to the conference room, the crowd surrounding Sun Huizhong had basically dispersed. ?Only Yao Mengna and another engineer from the Structural Strength Institute were still communicating with him, but the topic had changed to aircraft design and was no longer related to the software. In general, judging from Sun Huizhongs reaction after using it, this software is already quite complete, but it still needs to make the design of the UI interface and menu bar more user-friendly, and provide more detailed teaching. . He even said that if the tutorials that come with the software are inconvenient to be too large, then a detailed technical manual can be published and sold separately, so as to have the best of both worlds. ? ? In this era where even computer games come with paper strategy books (often as a means to prevent piracy), Sun Huizhongs idea is actually not outrageous. This is how a lot of software makes two bucks. However, Chang Haonan''s idea is still more advanced. The price of the product he sells already includes services. Moreover, when the software is first released, the main purpose is to promote the user range, so he finally decided to include a CD with the genuine software. version of the tutorial. Whether its useful or not is another matter, at least the posture must be sufficient. Subsequently, Chang Haonan called the persons in charge of each module together and asked them to make another overall modification to the software front-end based on Sun Huizhong''s feedback and prepare for pre-packaging. If nothing else happens, the first public beta version of V0.1.0 will be released after this modification is completed. However, due to the limited penetration and quality of the Internet at this time, real-time online updates cannot be achieved. Therefore, even if it is a beta version, he must ensure that the software has basic stability and usable functions. It is impossible to be like some companies in later generations. First release a version with extremely poor stability to make money, and then slowly fix the bugs through updated patches. ?Furthermore, the number of companies and institutions that have submitted applications to participate in public testing has exceeded 100, far exceeding Chang Haonan''s initial expectations. They still need to focus on producing a batch of installation CDs and activation codes. All in all, it may take about five to seven days. ??Its just that there are not many parts of this work that Chang Haonan needs to be personally responsible for. Mr. Chang, speaking of which, our software doesnt seem to have a formal name yet? After all the tasks were assigned, someone suddenly raised such a question. Yes, Mr. Chang, its up to you to come up with the name of the software. There is also the logo of the software, which must be decided by Mr. Chang. ?Others quickly echoed. Is this... Chang Haonan has thought about this problem before: "I think our future company should become China''s pioneer and leader in the field of industrial and commercial software. From this perspective, I think the name can be called the ''Torch'' Group. In this case, as the company''s first operating company A software, icon and LOGO can all be made into the shape of a torch. As for the name of the software, our main selling point is that it can handle simulation calculations of multiple physics fields at the same time and perform multi-disciplinary optimization in parallel, so in order to make people intuitively feel this advantage. Chang Haonan said this, picked up half a piece of chalk from the side, walked to the blackboard that Sun Huizhong had just used, and wrote a few big words on it: Its better to call it the Torch multi-field simulator. Then he added a line of English below: The corresponding English name is, TORCMultiphysics. The two names, as well as the LOGO design proposal, were unanimously approved without any doubt. ??Anyway, as long as you can build a company in the end, someone will naturally explain the meaning of the name to you, even if the name is completely arbitrary. Just like BYD=buildyourdream. ??Moreover, although it may not sound domineering enough, if you think about it carefully, it seems that the names of peers such as "google", "Microsoft", and "ANSYS" are also that virtue. ?So everyone quickly accepted this setting and got up to go back and do their own thing. Only the person in charge of front-end design asked Chang Haonan if he needed to find someone to design the logo. The latter thought for a while and said there was no need to spend the money. Then he found a piece of paper nearby and drew a somewhat abstract version on it. Fortunately, its not ugly. Then he drew the artistic word "torch" underneath. After all, on some occasions, the company name still needs to be displayed. ?Although Chang Haonan''s painting talent is limited, LOGO design mainly depends on one idea. He will definitely find someone to convert it into a PNG image format later, so he doesn''t need to worry about it. ?After sending away the group of people responsible for software development, Chang Haonan found Sun Huizhong, who was sweating a little because he had just answered the questions intensively. Sun Gong, what are your plans next? The basic design of the advanced trainer aircraft has been completed. According to the normal process, the next step should be to blow tunnel, optimize details and prepare for prototype production. However, the project of higher education aircraft has not yet been officially approved. After all, Guizhou Airlines is not as rich as Chengdu or Shengjing, and its own hardware conditions are also very poor. It is difficult to complete these processes with self-raised funds. I am still planning to go back to Qian Province with Xiao Lin first. Although there is no funds allocated yet, we can let Yunma Factory increase its production capacity according to the design requirements first. Sun Huizhong looked at the aerodynamic and structural design drawings on the laptop in front of him and replied. Even though he thought he was mentally prepared for Chang Haonan''s level, being able to completely finalize the overall design plan of a new aircraft in such a short period of time still gave him a rather unreal feeling. Although TORCHMultiphysics is not a professional digital manufacturing software, during the structural design process, it reserves space for aircraft assembly gap coordination and digital padding compensation, which greatly improves the efficiency of digital production improvements. ?However, for Guihang, which has been building the JJ-7 before, the technological requirements for this "quasi-third-generation aircraft" are a leap forward, and it will still take them a while to adapt. Thats good. After all, this model of yours needs to be used for technical verification of the new air inlet of Project 10. I estimate that after the first flight in Chengdu, the project approval should be completed soon. Chang Haonan nodded and replied: "However, after the project is completed, you still have to show some efficiency and try to build the prototype as quickly as possible. With the current flight performance of this aircraft, especially the maneuverability at large elevation angles, if you can do it in time Participating in next years Farnborough Airshow should directly increase the visibility of our airline, which will have a positive impact even on domestic orders. In this day and age, Chinese people still attach great importance to the opinions of foreigners. There is no way, due to the limitations of the times, in the late 1990s, Europe and the United States were indeed highly developed. ?Hence, even if the products are mainly for the domestic market, they are often willing to go overseas to get gold plating at some unknown expos, so that they can increase their value a lot when they come back. Not to mention an influential exhibition like the Farnborough Air Show. ??If you can amaze everyone with your skills on such an occasion, even the final assembly will take a high look when making purchase plans. ?Furthermore, judging from the naming of Guihang as FTC2000, they had plans to sell overseas from the beginning. Then its even more important to go out. Dont worry, Mr. Chang, our entire Guizhou Airlines, from the chairman to the grassroots employees, are waiting for this model to save lives. As long as the prototype is funded, I guarantee with my head that there will be no problems with speed and quality! ?Sun Huizhongs tone was decisive. (End of this chapter) Chapter 392 Ownership of large bypass ratio turbofan project Chapter 392: Ownership of the Large Bypass Ratio Turbofan Project Because of this sudden large-scale flood, many originally planned plans had to be postponed, such as the college entrance examination marking in many provinces, the first flight of Project 10, and the progress of the delivery of J-8C fighter jets from Factory 112... ??But if I have to say it, its not entirely like this Since the work of many factories and subsidiaries under the aviation industry system has been affected, many researchers who were busy working on projects have been idle for the first time. ?This has resulted in meeting times that were difficult to coordinate before becoming no longer a problem at all. So, after the weather cleared up a little and the waterlogging and flooding situation in various places had stabilized, Liang Zhuoping, who had already made relevant preparations, found an opportunity to meet with Chang Haonan and asked whether he should simply turn over the Chinese aviation engine industry. Invitations to the conference are sent out. Anyway, spanking a child on a rainy day is nothing but idleness. ??How about taking this free time to go to the port city to have a meeting together. ? During this period, Chang Haonan has been busy finishing work on flood control equipment and software, but he doesnt have much energy to pay attention to the developments in aviation development. Hearing the news today felt a bit sudden: Mr. Liang, as Director Ding said before, the negotiations to introduce D436T1 engines from Russia have ended? He still remembered that the last time the three of them met, the final result of the discussion was to wait until the matter was settled before meeting again. ?Liang Zhuoping nodded and put down the thermos cup in his hand: "Absolutely. The conditions of the three parties have basically been determined. The specific form of technology introduction is similar to that of Project 11. The four engines that have just been used for ground testing and the production of the first prototype are from the factories in Moscow and Ufa. Import the entire unit for assembly, and then gradually transition to our production of all parts other than the core engine. After completing the order for 300 engines in this way, we will transfer all related production tasks, and finally achieve the parallel production of the Russian version on both sides. and the Chinese version of two products of the same model and different specifications..." At the same time, the engine designer Ivchenko Company will also connect with our supporting research institute, gradually transfer the complete design plan, and cooperate with us to continue to improve this engine. This...has indeed been quite beneficial to us. ?Chang Haonan was even a little surprised after hearing the specific details of the agreement. This condition is no worse than the previous Project 11. You must know that this is the field of aviation power. China has always had a shortcoming, and it is also the part with the lowest bargaining power in foreign cooperation. ?If I have to say it, it may only be explained that the strategy of killing three soldiers with two peaches is working, and the Turbojet 14 that he developed last year really shocked the Russians: So which group of factories here is responsible for the development and production of D436T1? The reason why he asked this was because he felt that he could take advantage of the opportunity of the aerospace engine industry conference to allocate some resources to the factory that had undertaken this big job. It hasnt been finalized yet. Liang Zhuoping said and took out another piece of information from his bag and handed it to Chang Haonan: "Last time I saw that the report you gave to Director Ding was very detailed, so I won''t talk to you anymore about the situation and level of various aerospace power-related factories in our system. In short, except for the 606 Institute and Liming Factory, In addition, the other companies certainly do not have the ability to complete this kind of project on their own right now, but Shengjing has to concentrate on the research and development of the turbofan 10 and the production of the turbojet 14, and I am afraid that they will not be able to spare it in a short time. energy." "So, what Director Ding means is that in this matter, we must cooperate with Comrade Haonan in the work you are preparing to deploy at the aviation engine industry conference, and make decisions based on the resources allocated to each factory on the turbofan 10 project. Who will be responsible for the localization of D436T1? The latter took the information and almost burst out laughing ?This wave, everyone is thinking about this wave. ?Although there are many institutions in China that are building aerospace engines on the surface, apart from Shengjing, the only ones with complete R&D and production capabilities are Jianning. But the latter mainly uses turbine shaft and turboprop power. Although it has the same principle as the turbofan, the specific technical route is still very different. Besides, the strength is also very weak. ?In this way, technical assistance is required to proceed, so it would be better to hold it together at the Aviation Industry Conference. ? Its just that even Chang Haonan himself didnt expect that Ding Gaoheng would directly let himself have the decision-making power on this matter. The information in his hand is some technical capabilities required during the final assembly of the D436T1 engine. As a quite advanced high-bypass-ratio turbofan engine, even if it is just the final assembly, it is definitely a big challenge for Huaxia Aviation Manufacturing Factory, which has only produced turbojet and even piston engines in the past. From the perspective of technological continuity, Factory 430 in Hokyung is undoubtedly the most suitable to take over the production task of the D436T1 engine. They were responsible for producing the turbojet 8 engines used in the H-6 in the past, and they have some experience with medium-bypass aviation engines. They also have the Sibei MK202 on hand, which is the turbofan 9, the only seedling of Chinese turbofan aviation engines. At least it has Relevant industrial foundation. Although Factory 430 does not have a dedicated research institute, they have built up a technical team of their own in the process of producing and improving turbojet 8 over the years. It is worth cultivating after all. ?Furthermore, Haojing is relatively close to the capital and Shengjing, which is also a moderate advantage. So, while turning the information to the last page, he basically made a decision. If nothing else happens, I will consider tilting the opportunity to participate in the turbofan 10 project towards the 430 factory. ?Chang Haonan closed the information in his hand and returned it to Liang Zhuoping. ?He believes that the other party will definitely understand the meaning of this sentence: When the Seiko Plan was launched at the end of last year, Factory 430 sent many engineers to Shengjing to participate and learn. Not to mention how much knowledge they can gain, at least they will have richer experience in connecting with Factory 410. "In addition, because in the Turbofan 10 project, almost all technologies are brand new to us, and the risks are too high, so I have previously considered incorporating some key technologies, especially engine manufacturing technology, into the domestic production of Sibei MK202. model, that is, the technical verification of the turbofan 9 in advance, on the one hand, it can share the risks, and on the other hand, it can also speed up the research and development progress. This originally requires in-depth cooperation between the 606 Institute, the 410 Factory and the 430 Factory, and it is just in time to take advantage of this Opportunity to build our own second aero-engine industry base. ?Chang Haonans explanation is well-founded, so Liang Zhuoping has no objections: Okay, then I will make detailed arrangements after I go back. After all, Haojing was mainly responsible for the production and research and development of large and medium-sized aircraft in the past. Now that Chinas large bypass ratio turbofan engine is placed here, it can be regarded as a close-knit platform: By the way, theres also this. Before leaving, Liang Zhuoping handed Chang Haonan a beautifully printed paper envelope: The invitation letter to the meeting and the attendance certificate. Although I have given your photo to the comrades in charge at the scene, these should not be used, but they can still be kept as a souvenir. I have a hunch that this meeting will probably become a landmark event in the development history of Chinas aviation industry! The next chapter needs to be revised and may be posted later. (End of this chapter) Chapter 393 The first year of China’s aerospace engine industry! Chapter 393 The first year of Chinas aviation engine industry! ??Liang Zhuoping would say this so bluntly. On the one hand, he is eager to get closer to Chang Haonan, so he compliments him. On the other hand, he does take into account the latter''s brilliant resume in the past. ?? After meeting Chang Haonan for the second time in Ding Gaoheng''s office, Liang Zhuoping, who had learned from the painful experience, quickly found all the project information that the other party had participated in and read it for several days. Finally, it was discovered that as long as Chang Haonan participated in the project, it would be "successfully completed according to plan" at the end of the day. You may get some unexpected surprises if you are not careful. ??And not just at the technical level, Chang Haonan also seems to have some amazing judgment in the overall direction. ??Whether it is using domestic laws to initiate a compliance investigation into the Boeing-McDonnell Douglas merger, or using its own aircraft anti-icing technology to cooperate with the EU, it has ultimately proven to be a highly rewarding choice. In short, its just two words, awesome. In fact, Liang Zhuoping had heard some rumors before, saying that the reason why Ding Gaoheng, who was supposed to leave his leadership position, could continue to take over as director of the Commission of Science, Technology and Industry for National Defense was largely because Chang Haonan made too much noise. The superiors felt that at this time We should seek stability and not change generals on the spot. Although there is no evidence, in general, the degree of truth of such rumors is often frightening. What''s more, Cao Gangchun, who was originally expected to take over the Science and Technology Commission, was idle for more than a month after resigning as deputy chief of staff, and then was appointed as the director of the newly formed General Armament Department by Lightspeed. This is also quite an abnormal situation. ??Anyway, Liang Zhuoping believed it. In this case, he almost naturally came to the conclusion ?Hold Chang Haonan''s thigh tightly, which should help him sit more steadily in his current position. ?Hence, it is not surprising that he chose to unconditionally support any of Chang Haonans claims. After all, the most solid relationship is when the interests of the two are completely tied together. ?Of course, Chang Haonan didn''t know that, and he didn''t care much about Liang Zhuoping''s little Jiujiu. As the chairman of the Aviation Industry Corporation of China, the latter was considered unattainable to him a year ago, and he could be considered an important figure half a year ago, but now... ?Although he has not fallen to the level of a cat or a dog, he is basically on an equal footing with him. ??With the support of Ding Gaoheng and even higher-level officials, Liang Zhuoping, as a manager caught in the middle, has even less impact on specific projects than grassroots engineers like Lin Shikuan and Sun Huizhong. This is why many far-sighted companies, even if they want to reduce costs and increase efficiency, tend to use middle management first. Because the absence of these people will not have a too bad impact on the operation of the organization. At most, senior managers need to do it themselves and their workload will increase. On the other hand, some **** companies always start from the grassroots level when laying off employees. In the end, the number of employees who actually work is reduced sharply and people''s hearts are floating, which affects the company''s core business. As a result, it neither reduces costs nor increases efficiency, and eventually becomes vicious. cycle. Three days later, Hong Kong City. As an officially-stamped and well-known coastal tourism, leisure, and resort destination, it has long been known as a health resort and a conference capital. Many official or business meetings will be held here. The local international conference center is also relatively busy almost all year round. Even the recent floods do not seem to have had any particularly obvious impact here. The distance between Hong Kong City and the capital city is less than 300km. It must be too much trouble to fly, so Ding Gaoheng directly sent a special car to Chang Haonan to take him directly to the main venue. Even though Liang Zhuoping had previously said that he could scan his face throughout the process, Chang Haonan still brought an invitation letter and attendance certificate to avoid embarrassing situations where someone could not recognize him. ?However, when he got off the car and entered the International Conference Center, he found that he had underestimated his influence within the aviation industry system. Mr. Chang! Almost immediately after Chang Haonan entered the door, he heard a familiar voice coming from not far away. ?Looking around, there were several people in suits standing there. Among them is Zhong Shihong, director of the technical department of Factory 410, who is already very familiar with Chang Haonan. Minister Zhong, long time no see. ?Chang Haonan stepped forward and shook hands with the other party. Mr. Chang, Comrade Shihong has been promoted to the deputy general manager of Liming Engine Company (the formal name of Factory 410 at this time). Someone next to me joked with a slightly humorous tone. Oh? The title should really be changed. ?Chang Haonan also responded with a smile. Hearing this sentence, Zhong Shihong quickly waved his hand: "No, no, no, this is all thanks to Mr. Chang. If there weren''t so many orders for the Turbojet 14, and without the quality improvement brought about by the Seiko Plan, let alone promotion, my head of the technical department would be embarrassed to continue. Get on with it." Mr. Chang, youd better call me Comrade Shihong, or Zhong Gong. ?After a brief exchange of greetings after the meeting, Zhong Shihong also introduced several other people next to him to Chang Haonan. This is Comrade Liu Yongquan, who has been responsible for the pre-research work on the third-generation turbofan engine project at the 606 Institute. First of all, it was the first person who talked to Chang Haonan just now. Judging from his appearance, this person should be about thirty years old, but his bald head is extremely conspicuous in the crowd, and it directly adds to his overall temperament by at least ten years. Hello, Mr. Chang. Liu Yongquan also put away his joking tone and shook hands with Chang Haonan: "When the turbojet 14 was improved last year, I heard your name, especially the method you proposed to control the flow inside the high-pressure compressor Ye Shan. It was a revelation to me. Recently, In the past half year, I have also conducted a lot of research on the design of high-aspect ratio blades. I will give a report at the meeting soon, and I hope you can give me some advice. " Obviously, this person is one of the many researchers who have been influenced and inspired by the latter. It sounds like Mr. Liu is very familiar with my work last year. Chang Haonan himself was a little surprised. After all, Zhong Shihong said that the other party had been responsible for the pre-research of the Turbojet 10, but his understanding of the specific work content of the Turbojet 14 project was as if he had personally participated. I feel ashamed to say that after I first heard your name, I took advantage of your meetings to sneak in and listen in a few times. I really benefited a lot. Liu Yongquan touched his bald head awkwardly and replied. Although scientific research units do not engage in mentoring and mentoring like guild organizations in the past, this kind of thing is just like attending a meeting of other people''s research groups without permission. ?Although it does not violate any rules, if you meet a tutor who is more sensitive to this aspect (especially those in the material science field), you will still be unhappy. Those who have a bad temper may drive people away directly. ?Of course Chang Haonan definitely didn''t care. He wished that when he explained the plan, engineers in the entire aviation industry system could hear it simultaneously. There is another person Chang Haonan had a relationship with before. Zhang Zhenhua, the technical director of the 430 factory, is now responsible for the production process of the domestically produced turbofan 9. ?In addition, there were also engineers who came from Bingcheng, Zhucheng, Rongcheng, Jianning and other places to attend the meeting. Most of them, like Zhang Zhenhua and Zhong Shihong, are technicians in production units. For this meeting, our factory sent a total of nearly 50 people from grassroots management to technical backbones. After introducing the people around him, Zhong Shihong pointed to the inside of the venue where final preparations were being made before the opening: "There are also about thirty or forty people from the 606 factory, and almost the same number from the 430 factory. In short, Mr. Chang, your appeal is really good. I have never seen so many factories at the same meeting. Even Bingbing Chengcheng 122 Factory and Cidu 372 Factory, helicopter main engine factories that have little contact with us on weekdays, have sent representatives. As for 601 Factory and 112 Factory, they are not to mention. I heard that this will be yours. I mean, apply directly to the head office to request participation..." Original plant? Even Chang Haonan was stunned for a moment: I remember that this time I organized an industry conference on the aviation power industry... There are only other factories that have good personal relationships and close business ties with him, but the main businesses of Factory 122 (Zhi 5/Zhi 9) and 372 Factory (Zhi 8) are the production of helicopters, from the design, development principles and classification There is a big difference between the upper and fixed wing, because the two parties have not had much contact before. Fair hair does not separate families. Liu Hongming next to him explained: I have a college classmate who is the representative sent by Factory 122 this time. Another person echoed: Yes, some people have said before that 1997 may be a milestone for our Chinese aviation engine industry and the beginning of a new era. The invitation we received this time also said witness the first year of Chinas aviation engine industry There are so many people here, at least it means that everyone either pays high enough attention to him as a person, or pays high enough attention to the aero-engine industry. In short, it is a good thing. But the too abundant rainbow fart still makes Chang Haonan a little unable to bear it. In the end it was he who changed the topic first: By the way, Mr. Zhong, according to what you just said, our 410 Factorys production speed of turbojet 14 should not be low anymore? ? Being able to promote him, a technical director who is not yet old and has not yet come from within the aviation industry system, to the position of deputy general manager, obviously shows good results. "It depends. If we compare it with before, the production efficiency is indeed higher because the yield rate has increased a lot. Now we can deliver at least 15-20 turbojet 14 and turbojet 14B every month, but compared with the order demand, "It''s still a bit slow. Workers work overtime almost every day. Our new general manager Lin Zuoming is even considering adding a new production line to ensure supply." This is pure Versailles. Several engineers from other brother units nearby showed envy and hatred. Same world, different worries. ?The orders in their hands are so small that they can only let workers take turns to take holidays, while others are too busy to finish the work? ?Chang Haonan did not expect this kind of plot to unfold: Is the production capacity of Plant 112 and Plant 132 so high? Can 20 engines be used every month? 20 engines are equivalent to 10 J-8Cs or 20 J-7Fs per month. Even if it is divided in half and calculated as 15, it is a production rate that China''s aviation industry cannot even imagine today. More than. Zhong Shihong waved his hand: "About one-third of the goods are sent to Persia to overhaul and improve their F4E. Now there are dozens of people in Factory 112 stationed there, and they can completely overhaul 2- All three aircraft have twin engines and consume a lot of money. "I see" Chang Haonan suddenly understood after hearing this explanation. Obviously, under his operation, China actually became a net exporter of aircraft engines in 1997... ?From this point of view, the statement just now about "the first year of the aero-engine industry" is not entirely a propaganda slogan. (End of this chapter) Chapter 394 One person drives an industry Chapter 394 One person drives an industry By the way, I remember that the Persians asked us to improve the F14 before. When it comes to the Persian Air Force, Chang Haonan also recalled the situation a few months ago, so he asked Zhong Shihong: So, are you already upgrading the TF30 engine? No matter how you say it, the F14 is an aircraft from nearly 25 years ago. Even if China is not as good as the United States in terms of comprehensive development of the aviation industry, there will be no problem in most places if it wants to renovate or improve such an old model. The only trouble is motivation. Although the TF30 engine performance is very good. But again, it is a serious turbofan. ??And the main flaws are the unreasonable design of the compressor and poor matching of the flying engine. The production and manufacturing process is still quite good. So it cant be said that it is easy to upgrade TF30. It hasnt started yet. In fact, even the specific improvement plan for power has not been determined yet. Zhong Shihong shook his head: "We just shipped a TF30 from Tehran some time ago that has reached the end of its life. We are inspecting the situation. In short, because there is no original technical data at all, it is really difficult to upgrade the technology. We are currently discussing with the other party whether it is simply a life extension maintenance. , it is better to wait until the domestically produced turbofan 9 is produced and then give them a new engine. The prototype of the turbofan 9, the SPEI MK202, has an afterburning thrust of 9.2 tons, which is slightly smaller than the 9.4 tons of the TF30-P-412. However, the former still has considerable potential for increasing thrust. The key point is that the performance under working conditions must be much more stable, at least There is no need for pilots to practice the art of shutting down and restarting a surge engine during maneuvers before takeoff. In addition, the length and diameter of the turbofan 9 are smaller, which not only meets the fitness requirements, but can even be the same as the F4 after the engine change, saving space and increasing some fuel carrying capacity. Or add an auxiliary power unit (APU) to the rear half of the fuselage to generate electricity Since the F14 was designed too early, the power consumption of the high-power radar was not fully estimated, resulting in a tight power supply situation. In short, it is a huge advantage no matter how you think about it. The only problem is that although the current progress of the domestically produced turbofan 9 cannot be said to be perfect, it is at least some distance away from the Persians'' expectations... It all depends on whether the Persians can afford to wait. For us, we cant make much profit from overhauling or upgrading. The main benefit is to increase our popularity. Chang Haonan''s personal interest in the F14 is just for curiosity. After all, he has never really been exposed to any type of variable-sweep wing aircraft. However, from a practical perspective, the overall performance of this model actually does not meet the requirements of the times. The huge dead weight, low reliability and high maintenance time caused by the complex mechanical structure cannot be solved by simply changing the engine. The F4 upgrade project, which is large in volume and has low technical difficulty, is actually the main source of profit. Zhong Shihong nodded in agreement: This is true, so the main plan we are promoting here is to wait a little longer and then directly change the engine. This will increase the combat effectiveness even more, and it will also help our engine to get its name out there. If it had been left to the past, this kind of engine, which had not even been installed and tested, would not have been considered at all, even if it was just a prototype of a domestically produced model. But times have changed. The success of the Turbojet 14 and the subsequent series of results produced by the Seiko Project have made everyone more optimistic about the progress of the Turbofan 9. By the way, speaking of the Seiko Project, how has the progress been in the last two or three months? ??Although Chang Haonan is known as the general consultant of the Seiko Project, he has not been directly involved in specific projects for a while because he has been busy with Project 10 and software design and other issues recently. After all, it has only been half a year, and many projects have just started, but some specific technical results have been produced, especially in welding and casting processing. When it comes to the Seiko Project, Zhong Shihongs tone obviously became much more solemn. The main reason why he was promoted from the director of the technical department to the deputy general manager was actually this precision engineering plan. ?At this time, another person next to me took up the conversation: "Mr. Chang, I think that compared to the specific new technologies, the more important value of the Seiko Project is to provide us with a relatively open communication platform. Before, the information was too closed, and everyone sometimes didn''t know each other. Other peoples research level has led to many repetitive projects. There are other people beside me who also think so: "Yes, our factory turned a profit last month for the first time in the past five years, thanks to Mr. Chang''s new technology and the platform provided by Seiko Project." Chang Haonan turned around and saw that he I remember that this person should be a production manager from Jianning 331 Factory, and his name should be Yu Fei. The latter also immediately explained: We spent four months in the first half of the year updating technology and carried out a process upgrade on the turboshaft 8A engine, and finally achieved a relatively satisfactory technical index. Is the turboshaft 8... used on the straight 9? ?Chang Haonan confirmed casually. Compared with the turbofan engine that has attracted much attention, the two types of aviation engines with output shaft power, turboshaft and turboprop, have received relatively little attention. However, in fact, until more than 20 years later, they are still China Airlines. The biggest shortcoming in the power field. Yes, straight 9, and civilian model H410. Yu Fei nodded: The low cycle life of several key components of the original turboshaft 8A is only about 40% of that of the prototype Ahaye 1C. Once the weather reaches high temperatures above 30C, the available power will drop off a cliff, which will not even guarantee the air quality of the helicopter. It was very difficult to take off and take off, let alone transport people and cargo, causing users to complain endlessly. " "Before, Jiangcheng and Yangcheng, several cities with relatively good economic development levels, originally wanted to purchase a batch of police helicopters. After contacting Bingcheng, they brought a prototype aircraft for a test flight. The result was that the customers were frightened. Dare to use it..." The people around him chuckled. ?But I definitely dont mean to be mocking. If I have to say it, its self-deprecating. In fact, similar embarrassing situations are not isolated cases. It can even be said that almost everyone engaged in aviation in this era has encountered similar scenes. Let alone the civilian models, which have greater options for users to choose from, even the military models will be rejected. Fortunately, it was a coincidence this time. The first batch of our improved new engines just rolled off the production line and completed testing. We quickly shipped two units and replaced them, which was barely accepted by customers. General aviation is indeed a big market. If this area can be well maintained, there will definitely be great potential in the future. Chang Haonan was quite pleased to hear this story. After all, users are accustomed to this kind of thing, and it is actually difficult to change it in a short period of time. Especially in general aviation, the user scale is often not very large and they are not very cost-sensitive. ? So much so that in the previous life until the 2020s, there were almost no domestic models of police helicopters in major cities in China, and most of the market was occupied by companies such as AgustaWestland and Eurocopter. And now it is undoubtedly a good start. ?It''s a pity that the size of the Z-9 is really not enough, and the Z-8 model has huge fundamental problems. Unless the entire aircraft can be redesigned like the Z-8L later, it may be difficult to save it. In addition, Lanxiang Machinery Factory, which produces turboshaft 6, is considered to be first-rate weak even in the aviation power system. Even Chang Haonan almost forgot about it when he wrote the report before. In short, it can only be said that there is a long road ahead. ?At this moment, the sound of high-heeled shoes tapping on the ground came from far and near. Director Chang! ?Chang Haonan turned around and found that it was a venue staff member. Director Chang, our conference is about to start. Regarding the specific agenda, Mr. Liang still has some things to confirm with you. In the background... Looking at Chang Haonans leaving figure, Liu Yongquan once again touched his bald head out of habit: "Mr. Chang has driven our entire industry forward by himself..." (End of this chapter) Chapter 395 A new design approach for turbofan 10 Chapter 395 A new design method for turbofan 10 Half an hour later, accompanied by soft entrance music, the first China Aerospace Engine Industry Conference officially opened. Chang Haonan, who could only sit in the back row during such meetings in the past, as the most important guest and organizer of the meeting, was naturally invited to the middle position in the first row. Sitting with Liu Zhenxiang, who was also specially invited. Originally, the conference affairs department planned to arrange for him to give the first report immediately after his speech, but Chang Haonan said that the content he prepared was too long and too formal, and it was best to put it in the finale. This can also maintain the participants sense of expectation to a certain extent. He has read the reports prepared by several other people before. In terms of the current development level of China''s aviation power field, they can be considered to be of a very high level. Many of the conclusions were only achieved after the 21st century in previous lives. Although these are breakthroughs in very specific directions, so they are not a leap forward, they can definitely inspire researchers in other fields in terms of research ideas and methods. ? And if Chang Haonan had thrown out his heavy content first, then probably not many people would care about the following things - Always leave some opportunities for others. Therefore, after briefly summarizing the achievements in the aero-engine field over the past year, Chang Haonan generously gave the first official opportunity to the academician Liu Zhenxiang next to him. Although the latter is also a Taishan Beidou-level figure in the industry, the main content of his report is about the Chinese aerospace engine industry standards that are currently being formulated, especially the relevant standards in plateau environments of 3,000 meters and above. Following several reports There is not much overlap in content. "Due to China''s special geographical and terrain conditions, a considerable number of airports in key directions are built on plateaus and high plateau areas. This is a situation that almost no other country has ever faced. Therefore, a plateau condition standard that meets the requirements of our national conditions is important for It will undoubtedly be of great significance to my countrys national defense security and the flight safety of the civil aviation industry..." ?As Liu Zhenxiang''s report came to an end, Chang Haonan also lowered his head, preparing to sort out the key points he had just written down. ?But at this moment, he suddenly heard his name. At the end, I would like to express my special thanks to Comrade Chang Haonan. Chang Haonan raised his head almost subconsciously, and then found Liu Zhenxiang behind the podium staring at him with a smile. "If he had not submitted a key technical document to his superiors at the critical moment of high-altitude bench testing of the turbojet 14 engine, I am afraid that the entire aviation industry standard content we see today would not have appeared. From this, A series of new projects and new models will undoubtedly not exist. As soon as these words came out, the whole place was in an uproar. The extensive revision of aviation-related clauses in the national military standards has been something that has been making a lot of noise since the second half of last year. It is also closely related to the projects of almost everyone here. Naturally, no one does not know about it. However, not many people know the specific details. ?Everyone only knows that the whole thing started when the aero-engine quality acceptance standard GJB/Z64-94 was suddenly modified into a brand new GJB/Z64-97A. This is definitely something everyone expects. After all, the original set of standards copied from the Americans are completely unsuitable and lack operability. Not to mention passing the test more than two years after its release, no one can even explain how the test should be carried out. . ?Now its a new set of standards that, although not nearly as stringent, makes you want to know which screws to turn and how many times to turn them during the test, which is naturally very satisfying. But before today, not many people knew that the core content of GJB/Z64-97A was almost completed by Chang Haonan alone. ?A few seconds later, the entire venue finally came to its senses and began to give Chang Haonan thunderous applause. Now that the situation has reached this point, the latter has no choice but to stand up, turn around and gesture slightly to the back. ?However, Liu Zhenxiang seemed to have made a bad start. ??The content of the report at this aviation industry conference is actually more or less related to Chang Haonan. ?Now that even Academician Liu expresses his gratitude, why dont other people express his gratitude? So everyone has to say a sentence or a rainbow fart at the end of the report. Chang Haonan had already read all the reports, so his original plan was to sneak out to rest after Liu Zhenxiang finished speaking, and then return to the venue when it was his turn. ?As a result, all the eyes of the audience would focus on him every once in a while, and there was no chance at all. Due to standard conversion, even if the old standard is not implemented at all, the conversion only involves paper content is a very complicated matter, so Liu Zhenxiang distributed a lot of less important content in the form of vertical topics to some people with sufficient confidentiality levels. Project Team. Although the funding is not large, it is almost a life-saving straw for many people. And many people here today have benefited from this. It is no exaggeration to say that Chang Haonan can be regarded as half of their parents. Therefore, even during lunch and breaks between meetings, waves of people came to the front to express their gratitude or admiration to Chang Haonan... When the meeting process finally progressed to Chang Haonan taking the stage, he even felt a little relaxed. The applause lasted longer than the previous times. ?Chang Haonan stretched out his hands and pressed down, and then the whole place fell silent again. Comrades, what I want to talk about today is more formal. Chang Haonan said as he clicked on the first page of his PPT and projected it on the screen: Full three-dimensional design and unsteady analysis method of the third-generation high-thrust turbofan engine ??The moment this title appeared, the entire venue fell silent. What followed was the sound of notebooks being opened almost in unison. ? We are all industry insiders, and everyone knows what the description "third-generation high-thrust turbofan engine" refers to. You must know that the successful finalization of a second-generation turbojet engine last year injected a huge amount of funds and vitality into the field of aviation power that was unimaginable in the past. Now this is obviously about moving the Turbofan 10 from the pre-research stage to a real project. ??If you can participate in it, it will be immeasurable whether it is an improvement in your ability, resume or network. So everyone immediately got into high spirits. Seeing that everyone was ready, Chang Haonan officially started his report: The previous speakers today have introduced in great detail some of the most cutting-edge research in the field of aviation engines in our country. I am very happy to see that after the successful completion of the design and production of the turbojet 14, our aviation engine research has It did not stay where it was, but was pushed further to new heights by you..." After confirming his previous work, he changed the subject and went directly to the topic: But comrades, this alone is not enough. "Everyone must have known to some extent that our two domestically produced third-generation fighter jets, the medium-sized Project 10 and the heavy-duty Project 11, are in the process of being smoothly advanced. In fact, if it were not for the recent weather, , and may even have completed its first flight. "But these two aircraft still use AL31F engines imported from Russia in terms of aviation power. Of course, judging from the current situation, the Russians will not cut off engine supply to us like the Americans. So in a short period of time, you dont have to worry about the neck being stuck. "However, those of us engaged in aviation have learned too many historical lessons. In the final analysis, it is better to have our own parents than to have our own parents. Whether it is from the perspective of saving foreign exchange for the country or from the perspective of ensuring the independent development of national defense capabilities, we need to develop A new type of aviation power sufficient for third-generation fighter aircraft is coming! "Of course, to be fair, with the technology we have now, if we want to create a turbofan with a thrust ratio of more than 8, there will be problems almost everywhere from design to manufacturing, but I think it doesn''t matter. It will be difficult to pass. All difficulties are overcome step by step, and what I want to focus on today is also the starting point for developing a new model of aeroengine, which is a new design theory! " Speaking of this, Chang Haonan clicked the mouse again, and a formula familiar to everyone appeared on the screen. N-S equation. "As we all know, the N-S equation is the most universal differential equation in fluid mechanics calculations, and it is also the basic physical model for studying the internal flow mechanism of a compressor. However, it is limited by the lag in the development of related research technologies and people''s imperfect understanding of the flow mechanism. nature, corresponding to engineering requirements, this equation needs to be simplified, and a series of design methods and theories have been derived from this. "Before the aerodynamic theory of impeller machinery was formally formed, the aerodynamic design of impellers always adopted the one-dimensional flow method. However, this has little to do with the topic we are going to talk about today. Because the simplification is too serious, there is almost no engineering practice. value." The design theory we are currently using is the S1/S2 flow surface quasi-three-dimensional analysis and design theory based on two assumptions of steady state and partial consideration of viscosity effects. It transforms the three-dimensional flow solution problem of the compressor into two two-dimensional iterations. This theory simplifies the flow from the blade root to the blade tip in the compressor channel as the flow on a certain S2 flow surface, and at the same time simplifies the flow between the blades as the flow on a certain S1 flow surface, and passes through the two The mutual iteration between similar flow fields is used to obtain the entire three-dimensional flow field solution. So far, this is also the mainstream design method used in developed countries in Europe and the United States. Originally, this should be the most advanced theory we can use. ?Chang Haonan showed a smile and lightly tapped the podium in front of him: But I was lucky. A few months ago, I accidentally discovered a new method for dimensionality reduction of nonlinear partial differential equations. ??The originally solemn atmosphere suddenly became a lot more relaxed, and there was a burst of laughter below. Everyone knows that this kind of thing cannot be accomplished entirely by luck. Just because Chang Haonan is willing to be so humble, naturally no one can point it out. This new method of numerically solving partial differential equations, combined with the multi-physics simulation modeling software that I recently took the lead in developing, especially the new grid generation technology, provides us with a brand new possibility. The software interface of TORCHMultiphysics is slowly displayed on the screen. "Introducing a complete viscosity simulation calculation into the design system, the flow field structure can be analyzed and evaluated based on the calculation results, and improvement measures can be proposed in a timely manner. This method can not only more accurately ensure that the designed compressor has higher efficiency and The wider surge margin can also reduce the number of iterations in each design stage, reduce the reliance on research test components during the research process, and can even directly enter the entire compressor test. " Following the rules of several past methods, I named this theoryfull three-dimensional design and flow analysis! (End of this chapter) Chapter 396 Unify thoughts and concentrate strength Chapter 396: Unify thoughts and concentrate strength When Chang Haonan said this, he paused deliberately. Obviously, not everyone can immediately accept this concept from a theoretical level. ?But he had already thought of this. The report just made by Comrade Liu Yongquan talked about the design method of compressor bending and sweeping Ye Shan, and I happen to have a calculation example here. Chang Haonan released the next PPT, which showed a large aspect ratio blade with an extremely complex shape. You can join me and experience the design process of this ultra-high load adsorption curved swept combined leading edge edge blade. ?This name directly made many people laugh. As we all know, the longer the name, the stronger the person. ?However, at the end of the 1990s, the domestic trend had not been spoiled by Europe and the United States, and such names with a series of adjectives were not too common. ?Some keen people will find that Chang Haonan also marked several adjectives in front of the leaves in different colors, which seems to be intended to emphasize this point. Sure enough, he went on to explain: Pay attention to the several factors that need to be considered at the same time during the design process of our blade, and will have an impact on each other. "High load means that the single-stage boost ratio is high, and the efficiency of the blade itself must be sufficient; adsorption type means that a multi-slit adsorption type blade type is used to control the separation of the blade boundary layer; combined bending and sweeping means that bending and sweeping are applied at the same time. Sweep design, the blade is an asymmetrical complex shape in a three-dimensional space; the final leading edge strip means that we have also considered the adverse impact of the end wall effect on the compressor blade efficiency, and hope to reduce this as much as possible Influence." The smile just now disappeared. When designing, the more restrictive factors there are, the more difficult it will obviously be. ? And this "ultra-high load adsorption type curved and swept combined leading edge edge strip blade" is obviously the type with full buff. Generally, when encountering this kind of situation, these design elements are optimized separately, and finally combined and put on the bench for actual machine testing, and the parameters are fine-tuned little by little. ??This kind of gameplay that needs to be considered at the paper design stage is definitely a gameplay that I didn''t dare to think of before. But everyones smiles did not disappear, they just moved to Chang Haonans face: Although it is a little complicated, as a calculation example, it is certainly typical enough. Then lets do it step by step, first of all, give the simplest curved Ye Shan shape... ?With the assistance of calculation examples, most researchers with engineering backgrounds finally gradually understood the new method proposed by Chang Haonan. At first it was one-dimensional, then developed to two-dimensional, and then to quasi-three-dimensional... ?Now this is called full three-dimensional, which sounds logical. But after all, everyone here is a professional. After understanding it, they can almost immediately realize that the impact of this new theory on the field of aero-engine design is definitely not as ordinary as its name. It is no exaggeration to say that if all the cakes Chang Haonan just drew can be realized, then the workload of the aircraft engine compressor design process may be reduced by an order of magnitude! Considering that most of the reductions in the process are actual machine testing, the time, money and risk reduction saved in this round can almost cross the "quantitative change" and enter the category of "qualitative change". In the past, the reason why aero-engine design was a job that required a lot of experience and a lot of practical testing was largely because the losses caused by viscous effects accounted for a large proportion of the total losses, including the amount of power added to the blades and the amount of clogging. It has a direct impact on surge margin and so on. However, the quasi-three-dimensional design method that considers the S1/S2 flow surface highly relies on statistical methods (that is, guessing first and then iterating) for the calculation of viscous effects. Even the most cutting-edge method currently developed by General Electric and Rolls-Royce The streamline curvature method still requires a huge amount of experimental data to perform numerical fitting on aspects such as expansion loss, shock wave loss, gap loss, end wall loss, lagging angle and blockage estimation, which often takes several years. Even more than ten years... Note that this is only the compressor part of the three major parts of the aircraft engine, and does not take into account the two hot-end components of the combustion chamber and turbine, as well as the coordination of the three. In general, with the current technological means, it is not unusual to spend 15-20 years designing a new engine from scratch without a core engine or old model as a basis. In fact, it took about 15 years for the Turbofan 10 on the original timeline to move from instability to maturity. If the specific situation of three-dimensional viscous flow can be given directly through numerical calculation, then even with a conservative estimate, the entire compressor design process can be completed in about 2-4 years. ?Of course, the premise of all this is that the manufacturing level is up to standard and the things on the design drawings can be produced exactly as they are. Its just that Chinas aerospace industry is full of shortcomings, and they must be strengthened from the beginning, that is, the design stage. ??The reason why the TORC Multiphysics software designed by Chang Haonan emphasized the priority of ensuring the progress of the thermal coupling module from the very beginning is to expand its business in the field of material processing, especially the thermal processing of metal materials. This happens to be an indispensable technology in the development process of high-performance aero-engine hot-end components. China''s lagging behind in the field of materials is often not due to the inability to produce the raw materials themselves, but rather to the fact that the products manufactured using the same raw materials do not meet the requirements. Compared with the compressor as a cold-end component, the research focus of hot-end components, especially turbines, is basically focused on how to withstand the highest possible temperature. Generally speaking, increasing the temperature in front of the turbine can directly increase the gas flow rate, and it will not directly affect fuel consumption. It is the simplest and crudest, but also the most intuitive and effective way to increase thrust - provided that the overall design level can meet the corresponding standards, otherwise there will be a lot of trouble alone. High turbine front temperature does not mean high performance. The typical negative teaching material in this regard is the later Japanese XF6-1. The turbine front temperature of 1600C is already on par with the fourth-generation turbofan engine, but the actual level is about the same. Its almost like a smaller version of Taiwans RD33 The lowest temperature in front of the turbine of the third-generation (fourth-generation by foreign standards) turbofan engine cannot be lower than 1200C. If you want to achieve the target set by Chang Haonan for the turbofan 10, then this number will probably be Increase to above 1400. Obviously, no material can rely on its own properties to work stably for a long time at such a high temperature, so this requires some other tricks to help. TORCHMultiphysics has the potential to solve this problem. But this is no longer the focus of today. Hence, regarding the research and development of hot-end components, Chang Haonan only briefly talked about it in the final outlook part. ? No matter how awesome he is, it is impossible for him to introduce all the key technologies related to the third-generation turbofan engine in half an afternoon. In fact, even this brand-new compressor design method only has time to throw out the concept and briefly explain it. But its enough. Looking at the eyes of the nearly two hundred people in the venue, Chang Haonan knew that his mobilization was quite successful. ?Thats right, although he has been talking about technology on the surface, he is not just talking about technology. Its more about confidence. Although the design and production of the turbojet 14 has been finalized, and the orders have been so high that the 410 factory wants to allocate part to the 460 factory in Guizhou Province to relieve the pressure, at least before today, everyone has no idea whether they can produce a turbofan immediately. 10" I have no confidence in this matter. For aviation power powers such as the United States and the Soviet Union (Russia), this kind of thing is basically not a problem. Since the previous generation model has been completed, it is basically a matter of course to continue to develop the next generation. However, in China, due to the fact that aerospace power projects have not been independently established for a long time in the past, there is often no technical inheritance relationship between various types of aeroengines, and each new model is almost started from scratch. This is also the case between turbojet 14 and turbofan 10. The former, which was deeply improved by Chang Haonan, has certainly applied many new technologies, but after all, only a very small number of people know this detail. It is normal for most people to have concerns. However, when doing projects, especially projects that require concentrated efforts, the most taboo thing is that people are not aligned and they are hesitant to look forward and backward. So today''s report by Chang Haonan is to give a clear answer - Turbofan 10 can definitely be produced! So, after finishing talking about the technical aspects, he changed the subject: "From the calculation example just now, you comrades should also be able to see that even if new design theories and design tools are applied, the research and development of the third-generation turbofan engine is still a huge task, and it is difficult to rely solely on one Two units of strength to complete. So, in this matter, I think it should be carried out through joint research and development by multiple institutions. After Chang Haonan finished speaking, a burst of whispers suddenly sounded in the venue. Although he said "I think", anyone with a discerning eye can see that it is definitely not the opinion of one or two people who can express his position so clearly on this occasion. At least it needs to be approved by the Commission of Science, Technology and Industry for National Defense, or even a higher-level license has been obtained. But the question is, how to unite? (End of this chapter) Chapter 397 I am the chief designer! (Double sprint, bro) Chapter 397 I, the Chief Designer! (Double sprint, brothers, please give me a monthly vote~) ?Chang Haonan did not rush to continue speaking, but gave other people on the scene some time. ?In the era of market economy, it is definitely inappropriate to rely on the past theory that only talks about feelings and dedication. At least not the most appropriate. This applies to both individuals and groups. The turbofan 10 project will undoubtedly be led by the 606 Institute and the 410 Factory. More specifically, it will be led by Chang Haonan himself. This certainly does not present any problems for the two main R&D units, but it is another matter for other factories that are mobilized to participate. ??If you rely solely on an administrative order from the Science and Technology Commission and ask people to allocate all the main personnel to help you, it will inevitably lead to a situation where the work is done but not the effort. Originally, everyone has now completed the corporate restructuring. Although they are also affiliated to the Aviation Industry Corporation, they are responsible for their own profits and losses. You are happy to engage in "joint research and development", but others will suffer losses and explode? Just now, Chang Haonan must first come up with a new theory that is enough to establish a sect to build confidence in everyone, which is also based on the same consideration. It wasnt until about half a minute later that the noise in the audience gradually subsided, and he spoke again: "If any of you here are from the Haojing 430 factory, you should already know that the localization of Sibei MK202, which has been stalled for a long time, that is, the turbofan 9 project was restarted at the beginning of this year. What I can reveal here is that due to the development of turbofan 10 This process involves too many new technologies, and we will put some of the appropriate technologies on the turbofan 9 for verification and application. " On the one hand, this can reduce the risks of the turbofan 10 itself and speed up the project progress. On the other hand, it can also help brother units speed up research and development and improve the performance of the final product. Obviously, this is a more tactful way to answer the question that everyone is most concerned about just now, that is, what kind of cooperation method should be adopted. For state-owned enterprises, although the pursuit of profits is not their first priority, talking about benefits and interests at critical moments is by no means something that needs to be avoided. The meaning of Chang Haonan''s example of 430 Factory and Turbofan 9 is very clear - other units contribute their efforts to participate in the research and development of the Turbofan 10 project. Although we will not pay directly, the corresponding technologies obtained in the process can also be given back. to all parties involved. As a result, silence returned to the scene almost immediately. ??If I have to say something, it is that even on the stage, Chang Haonan can hear a neat intake of breath. You must know that these days, there are basically no aviation development companies in China that do not lose money. The only difference is how much they lose. In the past first half of 1997, the only company that had turned a profit was the 410 Factory/606 Factory holding a turbojet 14. After all, more than 150 engines were shipped in half a year, and nearly two-thirds were sold abroad in exchange for foreign exchange. This is an unprecedented event for other peers and even for the entire Chinese aerospace engine industry. The more important point is that they prove that the aerospace industry is fully capable of existing independently from the aircraft industry. This is something that many people have been pursuing tirelessly for more than ten years or even decades. The obvious reason why they can do all this is because they have developed a new model that is very competitive in the international market. Aviation engines are, after all, a technology-intensive industry. If the product is not good, everything is in vain. Cooking, just practice more.jpg Now some people say that there is an opportunity to help them improve their aviation technology step by step, and the cost is just to provide some people to help with the project. There is such a good thing? ?Who doesnt have a half-finished project that has suffered a setback? ??If it can really be produced, even if it is almost impossible to export, domestic sales will still be no problem. At least the urgent wage issue can be solved. ?So, the task that originally required apportioning the number of people suddenly turned into an opportunity to compete for quotas after Chang Haonan finished those two sentences. ?Although everyone in the venue maintained a certain degree of restraint due to the constraints of respectability, it was obvious that what everyone was thinking about had changed from "whether to send people to participate" to "how many people to send to participate" and "who to send to participate." When the report reaches this point, it is time to come to an end. After all, Chang Haonan went to great lengths to bring together a small number of 200 people to hold such a conference. The original intention was actually to be a wave of participation for the official launch of the research and development of the Turbofan 10 project. It now appears that the mobilization effect has far exceeded expectations. Therefore, after a concise summary, he quickly concluded his report. The applause this time was even louder than when he took the stage. If the previous applause was more out of etiquette and respect, then the emotions contained in it now are more excitement and gratitude. Just kidding, help. After returning to his seat, Liu Zhenxiang, who was next to him, quickly came over: Xiao Chang, this conference and the theme of your report were all planned by you in advance, right? ?When Chang Haonan started talking just now, he could see a series of interlocking routines, and everything that happened later undoubtedly provided confirmation. You cant say that either. Chang Haonan shook his head: It should be planned by Director Ding and I to give everyone some confidence and officially start the research and development of turbofan 10. Hearing these words, Liang Zhuoping curled his lips. TMD, I also want to plan with Director Ding... ?After the conference, the routine eating and drinking sessions are naturally indispensable. Of course, people from almost every factory attending the meeting came to Chang Haonan to propose a toast. So that the latter quickly replaced the white wine in the cup with a colorless drink while no one was paying attention. Xiao Chang. However, just when Chang Haonan was secretly preparing to pour another glass of sparkling water, someone suddenly called his name from behind, which scared him so much that he almost threw the cup in his hand. Ahem After pretending to cough twice, Chang Haonan turned around as if nothing happened. It is Yan Zhongcheng. Mr. Yan? I didnt seem to see you before the meeting just now? Fortunately, it seems that the other party just came to chat with him: Forget it, I was stuck on the road and was delayed for a while when I came here. Yan Zhongcheng scratched his head and put the wine glass beside him. After a few more casual greetings, he quickly changed the topic and got to the point: The new design software you mentioned in your report just now seems to have a thermal coupling module? "Yes, when I organized the development of TORC Multiphysics, I specifically focused on the coupling of multi-physics fields. Currently, there are two complete related modules, namely force-thermal coupling and electromagnetic coupling. As for the more complex strong coupling, , it still needs subsequent upgrades and updates to be completed. Chang Haonan nodded and replied. "It''s enough. Now the overall design of the Turbojet 14 aeroderivative gas engine has been completed, but I still hope to add a cooler to the ejection device. This can greatly reduce the heat emitted from the ship''s chimney. For the future new generation of infrared Imaging-guided anti-ship weapons have a strong defensive effect. Yan Zhongchengs eyes lit up after receiving a positive reply: I dont know how we can use this software? This is Chang Haonans face to this problem countless times: The public beta version will be released soon, just in the next few days. By then, all the affiliated units of the Aviation Industry Corporation will be the most advanced trial users, and I will send someone to Shengjing to guide the installation. Thats good, thats good Yan Zhongcheng showed a happy smile on his face, picked up the cup next to him, touched it lightly with Chang Haonan, and drank it all in one gulp. Lao Yan? ?At this moment, another somewhat vague voice sounded from beside the two of them. ?Two people, an old man and a young man, were walking quickly towards this side. You are indeed here with Comrade Haonan. The younger of the two was none other than Liu Yongquan, a bald engineer who had met Chang Haonan before. The older one was not impressed at all. Mr. Chang, this is Zhang Wenhe, my mentor. Liu Yongquan took advantage of a moment when no one spoke to introduce Chang Haonan. The latter suddenly realized. Chief designer of the first phase of Turbofan 10. "Comrade Haonan, after listening to your report today, I just feel that the waves behind the Yangtze River push the waves ahead..." Zhang Wenhe took the initiative to shake hands with Chang Haonan: I just talked to the leaders in the institute. If you have this intention, we hope to hire you as the chief designer after the research and development of turbofan 10 officially begins! (End of this chapter) Chapter 398 Torch Group is established! Chapter 398 Torch Group is established! Such a high-profile China Aerospace Engine Industry Conference cannot end in a hurry after only one day. There will be a day of slightly more relaxed agenda and a day for everyone to enjoy the sights. In fact, the reason why Chang Haonan designed it this way was mainly because he wanted to take advantage of this opportunity to fish. ??He also came to Hong Kong City for several meetings in his previous life, but they were all as an ordinary entourage and did not have many opportunities to appreciate the local scenery. ?However, things didnt work out as he wished, and he received a phone call on the first night of the meeting. Xiao Chang, are you convenient now? ?When he first picked up the phone, Chang Haonan couldn''t even immediately realize who was on the other side. Because generally speaking, apart from family members, the people who would call his cell phone would be those engineers who were already familiar with him, but this voice obviously didn''t match up with any of them. ?After his mind was running rapidly for about half a second, he finally found the owner of the voice from the depths of his memory. Song Jian, Director of the Science and Technology Commission. ?Of course, considering that I now carry a lot of hats from the National Science and Technology Commission, it is normal for the other party to find this mobile phone number and contact me. Director Song, I am attending the China Aviation Engine Industry Conference here in the port city. Finally, the embarrassing situation of the leader calls you but you dont know who the leader is didnt happen. In the port city? Song Jian was also stunned. These days, the frequency and efficiency of exchanges between various departments are very low. For the Science and Technology Commission system, the Science and Technology Commission may not necessarily know about earth-shattering events. Then you guys should be staying in a hotel, right? He obviously knows everything about the situation here, and I''m afraid he has held many meetings here. Thats right, its the accommodation directly arranged by the organization. Chang Haonan replied. ??Just kidding, there are almost all the elites in China''s aviation power industry here. If there is any accident, no one can survive, so Liang Zhuoping directly arranged an internal guest house with security. About two hundred people occupied more than half of the place. "Then tell the front desk. They should have a dedicated internal phone number. Use that phone to call me back." After finishing speaking, he hung up the phone. Obviously, this is something important. When Big Brother first appeared a few years ago, the relevant confidentiality regulations had not caught up, resulting in many leak cases. Now it is strictly prohibited to talk about secret information in mobile communication tools. So within the system, the role of mobile phones is actually not much different from that of pagers. It can only be said that it is a conference capital. After Chang Haonan inquired at the front desk, he learned that there was indeed an internal telephone room specially used for calls to the capital. Free. ??And they are all divided into small rooms, so you dont have to worry about the problem of ears on the partition walls. I dialed the number again and the person on the other end picked up the call almost as soon as the first ringtone sounded. "Hello?" Director Song, I am Chang Haonan. "Xiao Chang, I received a call from Director Wang of the Economic and Trade Commission this morning. The company you need has been approved by the higher authorities. It is affiliated to the Academy of Sciences, but it operates independently. In terms of operations, it only accepts the Economic and Trade Commission and the ZY Enterprise Working Committee. and the jurisdiction of the Ministry of Finance. ?As a senior academician, Song Jian still has the habit of getting straight to the point when he speaks. "So fast?" Chang Haonan was still wondering why the other party called him on the way here just now, but he never thought of this: Didnt I remember that I said before that it would be at the end of this year at the earliest? Before is before, now is now. Song Jians tone on the phone rose, and he was obviously in a good mood: "You have done such a big thing recently, how can there be no response from above? Let me tell you this, the post-production task of the flood control equipment you made was personally deployed by the Commander-in-Chief of Yangtze River Flood Control. Understood?" "Understood." Chang Haonan can certainly understand what he said. Obviously, this matter was handled as a special matter and expedited by the superiors. "You should try to come back to the capital tomorrow. There are some matters that you still need to confirm in person." Okay, Ill go back early tomorrow morning! ?Chang Haonan immediately became energetic. Its too decadent to travel around the world, bah Although the company passed the review so far in advance, the companys office location and specific personnel structure are definitely not ready at all. But it doesnt matter. For an enterprise, especially a state-owned enterprise, the most important thing is the organizational structure, the official seal, and the company account. ?As long as these three things are settled, it doesnt matter if you delay the rest. ? ? Anyway, the department responsible for the business is his project team. The testing of the TORC Multiphysics software will last at least half a year, and it will not enter the maintenance cycle for a while. More importantly, the leaders of both sides are the same person, and there will be no conflict with each other. After ending the call, Chang Haonan excitedly shook his fist in the air. ? In just over a year, I went from being an ordinary student to the general manager of a state-owned enterprise that I had never set foot in in my previous life - even though it can only be considered a small and micro enterprise, it would be a lie to say that I am not excited. This kind of thing requires a desensitization process. Just like when he was first reborn, even completing a small project was enough to make him happy for a long time. But as the habit became natural, now, basically only some things like the Turbofan 10 Big projects like this can bring that same sense of excitement. So he returned to the capital early the next morning after resting for a night. Since the company is nominally a subordinate unit of the Academy of Sciences, administrative operations still need to be handled by the Science and Technology Committee. ?In a conference room arranged by Song Jian, several staff members from the Economic and Trade Committee and the Enterprise Working Committee met with Chang Haonan. Generally speaking, even if the approval for the establishment of a state-owned enterprise has been passed, the subsequent registration process of enterprise and organizational relationships is quite troublesome and cannot be solved by just a few people chatting. But this time the order was issued directly from above, so the attention it received was naturally different. The two authorities simply came to work together. Simply put, the required information is collected once and then they can go back and process it slowly later. This can save Chang Haonan a lot of trouble. Such a situation is of course normal in later generations, but in the late 1990s, it was definitely unprecedented. As for the Ministry of Finance... It is not yet time for them to play a role. Comrade Chang Haonan, these are the approval procedures related to new enterprises, documents confirming the nature of the enterprise, enterprise scale and operating requirements, and..." ?Although the documents seem to be a lot and a bit confusing, overall it is not complicated. Chang Haonan, who is not even a master of business management, soon fully understood the specific work he would do after taking office. The main reason is that the current scale is still small and the business location is very single, so it is easy to say anything and there is not much difficulty in management. If it is really the kind of super central enterprise with a scale of hundreds of thousands or even hundreds of thousands of people, let alone Chang Haonan who only made outstanding contributions in flood fighting and rescue operations. Even if he directly eradicates the Yangtze River floods, it is impossible for him to directly manage it. . You have to practice it step by step from bottom to top for several years. We also need to determine the companys name and logo and other cultural elements. What Director Wang means is that I fully respect Comrade Chang Haonans opinion in this regard. As long as its not a too strange name, you can go back and think about it carefully... Fortunately, Chang Haonan was prepared: No need, Ive already thought about it, the company name is Torch, and the logo is also in my computer... After communicating for a whole morning, everyone confirmed all the information related to the company. Before leaving, people from the ZY Enterprise Working Committee repeatedly warned that other issues, including money issues, were easy to deal with. However, if the company wanted to expand its business scope or staff size, it must first apply to the superior authority and pass the application. We can start doing it later, otherwise even if the Torch Group has already put its name on it, it will cause a lot of trouble. Chang Haonan doesn''t care about this. He is very confident in his management ability, so he was not planning to build the company into a super giant. What he wants is a small but sophisticated presence in the field of industrial software. In the future, he even has the idea that Torch Group will only provide the core code of basic functional modules, while other companies will do the specific programming. Seeing Chang Haonan''s very solemn promise, the other party felt relieved - he had never seen such a young business leader. He always couldn''t help but pretend to be his own son''s age, and wanted to nag more about everything, for fear that this naughty man would Something went wrong. Xiao Chang. After seeing off a group of people from the two ministries, Song Jian came to Chang Haonan. After looking at him for a while, he put his hands on the latter''s shoulders: Since this is an organizational decision, it must have gone through special considerations and I think you do have the ability. I sincerely wish you success in your new position. "But you must remember that what is entrusted to you this time is not only power, but also responsibility." Sure, dont go down the wrong path. Considering your ability and age, as long as you choose the right direction, you will have a bright future. Business management is different from scientific research. Sometimes, you must not rush for success. "clear." Chang Haonan said righteously. Chapter 2 will be posted in the afternoon, I was too busy yesterday (End of this chapter) Chapter 399 The birth of TORCHMultiphysics Chapter 399 The Birth of TORCH Multiphysics ?Although it will take some time before the official unveiling of the Torch Company, considering that it is a matter that has been focused on above, the progress in various formalities is quite rapid. When the TORC Multiphysics software completes the final package of the public beta version in a few days, except that it does not yet have a formal office location and the organizational structure has not yet been finalized, it will be no different from a full-blown company. One of the major benefits is that Chang Haonan can directly register Torch Company as the property owner of the software, and can also include the company''s logo and contact information in the most important public test promotions. Although this is not much different from the legal perspective compared to the original plan of acting in the name of the project team and then converting to a Torch company after the software is officially released, it is quite different in terms of publicity. There are two versions of the public test of TORCH Multiphysics, one is the enhanced version (Proplus) authorized to some confidential units, which contains all preset models and algorithms, and the other is the professional version (Pro) that is publicly released to all applicants. There are limitations on a small number of preset databases, but there is no essential difference in basic functions. They will only affect the computing efficiency of some large models or extremely dirty models. At the beginning, these two versions were simply named the normal version and the advanced version within the project team. But Chang Haonan thought about it and felt that on the one hand, this did not sound good, and on the other hand, it seemed to discriminate against some users. So I simply changed the name. There are not even medium cups, only large cups and extra large cups. In short, no matter which version, it is definitely a heavy blow to the field of numerical simulation in 1997. After all, the core function of the software, which is multi-field comprehensive simulation with strong coupling, is almost a breakthrough from 0 to 1 in this era. Although some laboratories or research institutes have developed some small related tools in the past, they can basically only solve certain specific problems and have no obvious help for the overall research level. Naturally, there is no way. Come to the stage of commercialization. Some software companies that have been deeply involved in the field for many years have naturally paid attention to the business opportunities in this area. However, due to the difficulty of calculation and the level of theoretical development, the current results are limited to some small toolkits relying on MATLAB or Fluent, which are functional and reliable. Neither **** is optimistic. It is conceivable that when TORCH Multiphysics comes out, it will bring a shock to the engineering world. At this most critical time, the first name that appears in people''s sight is destined to be remembered for a long time. ?For example, Netflix once spun off its physical DVD business and renamed it Qwikster, but even their own people often forgot the name. Later, it only lasted more than a month before they honestly changed it back. Therefore, using the Torch Companys logo directly instead of the name of an inconspicuous research group will undoubtedly be more conducive to subsequent market expansion and visibility. ?At present, the project teams temporary warehouse located in the Supercomputing Center of Beihang University is already filled with software packaging boxes that are about to be mailed out. Mr. Chang, as of last night, we have received a total of 744 test applications in various forms, including 42 for the upgraded version and 702 for the professional version, including 17 from foreign users. Teacher Yang, where do these 17 foreign users come from? ?The person responsible for the marketing business of Torch Company is Yang Huimei, a professor of industrial trade at Beijing Hang University, who has also met Chang Haonan several times before. She is also the third official employee of Torch Company to be named on the corporate working committee. No way, in the 1990s, the management major of the marketing major had just started in China, and not many degrees had been awarded, and even after more than 20 years, no one could tell what the field was. What a professional. ? In comparison, Yang Huimei, who has rich experience in industrial trade and has participated in many foreign trade negotiations in the aviation industry, is obviously a more reliable candidate. Chang Haonan naturally cannot devote all his energy to these management matters, so only the application for the upgraded version needs to be reviewed by him personally, and the remaining professional version can basically be passed as long as the information is compliant. For a commercial software released for the market, it is neither useful nor necessary to overly limit the scope of the user group. In fact, the UI interface of the software already provides several commonly used languages ??in the world to choose from, and it will be even more useful in the future. Plan to go overseas. However, he was a little surprised that 17 overseas users could pop up without any publicity before. Most of them are from European universities, especially those that have established cooperative relationships with us through the negotiations in the first half of the year. It should have something to do with your appeal, Mr. Chang. After Chang Haonan cast a doubtful look, Yang Huimei then explained: "Because the first one to apply was the National School of Roads and Bridges in Paris, followed by several universities in their small circle, and then expanded to Germany, Italy and Switzerland. Among the 17 users, only Agusta and Fiat "Home is a business and the rest are research institutions." As she spoke, she took out a paper document directly from her bag and handed it to Chang Haonan, obviously she had already prepared it. The latter briefly browsed through it and found that it was exactly what the other party said. "If I remember correctly, during the negotiations in Haojing, there was a person in charge of technology on the EU side named Fernando Lorenzo, who should be a professor at the National Roads and Bridges School." ?Yang Huimei said from the side. Chang Haonan turned to the last page of the first application and found that there was indeed a Spanish signature. ?Of course he could not recognize the Spanish, but after being reminded, he could still tell that the person who signed the application document was Fernando Lorenzo. This is very reasonable. After all, during the negotiation process at that time, this cute little old man was the first to propose in-depth cooperation with China and the first to consider introducing technology from China. ?It is normal for him to continue to pay attention to the situation in China after that. ??And this company is quite influential in the field of numerical calculation in Europe, so it will naturally attract the attention of other colleagues. Good things are all good things. "correct." ?Chang Haonan returned the document in his hand to Yang Huimei, then turned to look at the deputy director of the project team on the other side Originally, Chang Haonan was going to invite Li Jie over directly, but considering that he was already the chairman of Shuguang Group and an academician, the possibility of becoming the head of the technical department under him was almost non-existent, so this position had to be replaced. If there is a temporary vacancy, let the two deputy directors of the project team take over temporarily. Our software currently only provides a multi-lingual version of the UI interface. Now that there are foreign users in the trial phase, the instructions and related legal documents must be translated as soon as possible. Although the software in the trial phase does not involve charging issues, it is not open source software after all. From a legal perspective, efforts to prevent piracy still need to be made. Whether you can prevent it or not is another matter. No problem, I have already deployed the work in this area. The main problem now is that there are too few people who understand the laws in Europe, so the progress in this area will be slower. The deputy director nodded and replied. It doesnt matter, the reputation of the first batch of customers is very important, it doesnt matter even if it is shipped abroad a little later. In this kind of matter, Chang Haonan adheres to the principle of "preferring shortage to excess". "yes!" (End of this chapter) Chapter 400 Help in times of need Chapter 400: Giving timely help The first users to receive the trial version of the software are undoubtedly Beijing Hang University and the Institute of Computing Technology of the Chinese Academy of Sciences. ?Of course, due to the company''s formalized process and legal perfection, an authorization document still needs to be sent out through the postal service. After all, the postmark is an important basis for judging the period (time limit) and delivery behavior in civil activities, especially in the process of making a contract. This matter is particularly important in this era before electronic contract signing. ??It was just that it was delivered within the same city, and the priority was high, so both parties received the paper authorization license on the second day after the trial version was released. ?In fact, they dont even need an installation programTORCHMultiphysics software itself was born in the computer room of Beijing Airlines and the Institute of Computing Technology. ??Its just that the effectiveness of this authorization document means that researchers in these two institutions can use the new software in publicly published results or in the process of completing projects. Subsequently, a little later, several central enterprises and universities headquartered in the Science and Technology Commission system, including the Aviation Industry Corporation and the Aerospace Corporation, also received the same permission. According to the plan set by Chang Haonan, users of the upgraded version will receive the installation CD of the software about two to three weeks before users of the professional version. This is mainly because the former are basically confidential units within the system. In case of legal provisions or If there are any flaws in the software design, the impact caused by them being discovered first is relatively controllable. As a price, the projects in the hands of these units are basically hard work with long cycles and large investment, so generally speaking, complete usage feedback cannot be obtained in a short period of time. But everything is always special. ?At almost the same time that relevant units began to receive the TORCHMultiphysics software installation package in batches, Bingcheng University of Technology. Professor Li Zhihongs research team has been troubled by the project in their hands for a long time. Since 1992, they have been collaborating with colleagues from several other universities to conduct research on high-precision spiral bevel gear processing. This is a very common part in high-end aerospace, equipment manufacturing and other fields. For example, the turbofan 10 engine and heavy-duty die forging press that Chang Haonan is concentrating on preparing to tackle, both require a large number of high-precision spiral bevel gears. ??Due to the complex spatial shape and structure, its processing is quite difficult. For a long time, it can only be completed by CNC gear grinding machines imported from Gleason in the United States and Klingenberg in Germany. However, the functions of imported gear grinding machines are limited, and many products are restricted from being used in manufacturing. If problems are encountered during production, the data must be transmitted to the machine tool manufacturer, and foreign technicians will adjust the parameters. . It is equivalent to a manufacturer here in China spending a huge sum of 15 to 20 million to buy a machine, but only working as an operator for a foreign supplier. Not only can it not produce the most in-demand parts, but it does not even have access to knowledge in related fields. . Its just plain bullying! Hence, it is imperative to obtain your own digital precision machining capabilities. In the first half of this year, this research, which was originally aimed solely at high-precision spiral bevel gears, was included in the Seiko Project and expanded into a broader "new principle and new method of digital precision machining of high-performance complex curved surfaces." After obtaining new resources and funding, Professor Li Zhihong finally began to change the last step of the traditional three-step process of "gear milling-heat treatment-grinding" to gear grinding, and trial-produced a gear that met the requirements in a laboratory environment. Finished products, but they have never been able to be transferred to industrial production. The most difficult part of this process is that the gear grinding process must be coordinated with the heat treatment process to correct the deformation error generated during the latter process. However, the grinding process itself will generate a large amount of grinding heat, affecting the correction accuracy and subsequent stress release. process. Relevant foreign manufacturers have been deeply involved in this field for decades or even hundreds of years, and each has a set of fairly accurate grinding processing models. Even so, for different specific products, a large number of experiments are still required to determine the processing parameters. Domestic research has only started less than 20 years ago, so you can imagine how difficult it is to catch up in a short period of time. Wang Jie. ??Li Zhihong took off his glasses, rubbed the top of his head that was already losing some hair, and called over a student next to him who was immersed in drawing. Send this new process requirement to the processing factory. Wang Jie on the other side of the room put down the pencil and compass in his hand, walked over and took a thick stack of documents from the professor''s hand, opened it and took a look at it. Have you adjusted the empirical parameters in the grinding force calculation formula again? Even Wang Jie, who has just joined the research team for about a year, is already familiar with it. ?Li Zhihong didn''t say anything, just nodded. "well" ??Wang Jie sighed inaudibly while putting the documents in his hand into his schoolbag. Engineering technology research and development projects is indeed very high-end. It often costs tens or millions of R&D funds. What we usually come into contact with are highly classified national weapons, which are very difficult to achieve. ?But on the other hand, most of the work they usually do can be summed up as parameter adjustment, trial production, sample analysis, parameter readjustment, and trial production again... Even if it were an ordinary high school student, there would be no problem. ?After passing through the initial fresh stage, although Wang Jie will still handle his work diligently, he will inevitably have doubts about his own value. They have also tried to use numerical calculations to theoretically calculate the heat treatment and grinding processes to repeat the number of iterations. However, since the temperature, stress conditions and calculation boundaries of the workpiece are constantly changing during the entire processing process, In the end, the results they calculated were completely irrelevant to the actual situation. ?This is certainly not unexpected ??If the results could be obtained so easily by calculation, then several top companies in the industry must have used it long ago, instead of continuing to rely on the empirical formulas passed down by their ancestors. But it is really difficult for late-developing countries, especially China, which is not yet a high-level economic country. Dont be discouraged. In fact, our progress in the past six months is already very fast, whether compared to the past or compared to our foreign counterparts. ?Li Zhihong put on his glasses again and taught his students. Teacher, I know this, I just think this is not the same as the scientific research I expected... "Alas... we are engaged in mechanical manufacturing..." Just halfway through speaking, the door of the office room was pushed open. ?The person who rushed in was the senior brother and junior boss of the research team, Zheng Shudong. Teacher Li, the school computing center said that they received a brand new numerical simulation software today, which may be able to solve our problem. As soon as he finished speaking, Li Zhihong and Wang Jie stared directly at him. Especially the latter. I just complained about the gap between reality and ideals, and now I have an opportunity to realize my ideals. Tell me in detail? ?As a mentor, Li Zhihong is much more stable after all, but his eyes also reveal excitement. A few days ago, Beijing University of Science and Technology and the Institute of Computing Technology of the Academy of Sciences jointly launched a software development project, mainly to solve the strong nonlinear problem in the multi-field coincidence simulation process. ??The other two people in the room looked at each other. Obviously, for them this is just like giving them a pillow when they are drowsy. Lets go and have a look. ?The three of them left the laboratory quickly. Professor Li Hongzhi even forgot to fasten the cap of his pen. When they arrived at the computer room, several acquaintances were already there. Lao Li, when this software was delivered to me today, the first thing I thought of was you. Come and take a look at this, the instruction manual and promotional brochure sent by Torch Company. ?Li Zhihong squeezed through the crowd and got in front of the computer. TORCHMultiphysicsthe name is quite straightforward. ??He pushed up his glasses. Although his tone was calm, his eyes were firmly fixed on the lines of text on the screen. ??The previous large paragraph is really basic for professional researchers, but Li Zhihong was a little embarrassed to turn directly to the part that interested him most. Teacher, you can directly select the chapter here. ??Wang Jies stupid speech quickly helped his mentor find the right path. Why are you so anxious? Others may still want to see it... ??Although Li Zhihong said this, he followed his instructions very honestly and clicked directly into the "Force and Heat Coupling" section. The temperature field is a collection of the distribution of grinding temperature in the spatial domain and time domain caused by various heat sources He quickly became fully involved. About twenty minutes later, the master and apprentice looked at each other several times. Is this a bit close to the scientific research you expected? The first person to speak was naturally Li Zhihong. He adjusted his glasses and asked Wang Jie. Close, too close. The latter kept nodding. The director of the supercomputing center next to him finally spoke after seeing this: Actually, I originally wanted to ask the development director of this software, who is also the director of Beijing Airlines Supercomputing Center, to give a special lecture, but after calling me, the other person said that he was not in school recently, so it was not possible. It doesnt matter. ?Li Zhihong shook his head: The application of this software is not difficult, even for people who are not computer majors. As for the specific effects...of course, we still need to test it to know. After speaking, he looked at the other party with questioning eyes. The director obviously understood what he meant: No problem, in the next few months this year, our research groups supercomputing time allocation will be doubled! The next chapter has been reviewed, please wait. (End of this chapter) Chapter 401 Final preparations before first flight Chapter 401 Final preparations before the first flight ?At this time, Chang Haonan was really not with Beijing Airlines. Since Sichuan Province itself is not an area seriously affected by floods, Factory 132 is located in a relatively advantageous location and is not prone to water accumulation. In addition, the superior unit sent a truckload of soil-swelling water bags at the most critical moment. Due to the superposition of these factors, the entire factory area was far less affected by this wave of nationwide floods than previously expected. ?Prototype 01 of Project 10 was not even moved to a high place. After calculation, it was slightly supported in the assembly workshop to a certain height, thus completely avoiding the threat of waterlogging. Therefore, about half a month after the rain subsided, Rongfei was able to completely eliminate the negative impact of the flooding and began preparing for the test flight as planned. Chang Haonan, as a person who played an extremely important role in the early ground testing process, naturally received an invitation to participate in the first flight ceremony. Even though I had been prepared for this, when I actually received the call, the feeling was completely different. ??If the Chinese Air Force can be simply and roughly divided into two eras, before the introduction of the Su-27 and after the introduction of the Su-27, then China''s aviation industry can also be divided into two eras in the same way, and the watershed is the No. 10 Project! As a third-generation fighter, its excellent performance is secondary. The greater significance is that it is the first model in China to independently complete the entire process from pre-research, project establishment to finalization and service under the new national military standard system. . Even if some parts of this aircraft need to be imported from abroad, it will not affect its status in the history of the development of China''s aviation industry. Prior to this, although there were also independent models such as JJ-1, Chujiao-6 and Shuibo-5 that broke away from the technical route of imitating Soviet aircraft, their technical level was either really low, or they failed to enter mass production due to various reasons. In short All have various regrets. The J-10 is the first time that China has opened up the complete aviation industry chain from beginning to end. Dont think that the overall design of the aircraft is a simple matter. ?Those who have done engineering design will know that even watching others complete a project is completely different from doing it yourself. Only after completing this leap from 0 to 1 can we have the capital to think so. You must know that even more than 20 years later, there will be only a few countries that can "save" an aircraft using imported parts and components. It is difficult for those who dont know how to do it, but it is not difficult for those who know how to do it. It''s a bit like writing a paper. When I read papers posted by others, I always feel like "What kind of **** can be published in nature?" But when I actually write it myself, I find that what I write is not even as good as rubbish. Project No. 10 is the first first-author paper completed by China in the field of aviation industry. And this paper was directly selected into the top journal. Therefore, the first flight of the J-10 cannot be missed. When Chang Haonan arrived in Chengdu by plane, it was three days before the first flight. After all, he can be regarded as an insider involved in Project No. 10, and the treatment he receives is naturally completely different. In the final analysis, other guests who are just here to observe, no matter how high their status, can only be regarded as "outsiders" to the No. 10 project. Arriving to Chengdu too far in advance, or being too involved in their daily work will appear Rather intrusive. But Chang Haonan will not. Not only did he not, even after he arrived at Factory 132, he was personally brought into the assembly workshop by deputy chief designer Yang Wei. Mr. Song, Mr. Xue. Unexpectedly, Chang Haonan saw Song Wencong and Xue Chishou in front of the No. 01 prototype that was undergoing the final round of testing. At this stage, as the chief engineer and chief engineer, what they can do is actually relatively limited. The main reason why I stay here is for psychological comfort. In the current timeline, due to the addition of Chang Haonan, the No. 01 prototype did not suffer the two heavy losses during the ground test. Coupled with the optimization of the manufacturing process and production management level, the reason for the previous life did not appear. The first flight was delayed due to the discovery of three oil leaks. Xiao Chang, come here and take a look at this plane. After a brief greeting, Xue Chishou directly pulled Chang Haonan aside. ??The afterglow of the setting sun filtered through the glass of the factory building and enveloped the fuselage of the No. 01 prototype, giving it a golden luster, as if it was bathed in holy light. ?This is of course not the first time Chang Haonan has seen the J-10. ?Compared with the first flight state of the previous life, the hardware of the aircraft in front of me has not changed much. The main differences are basically concentrated in the invisible software part. Especially the flight control program, after integrating the surge prediction and active control system designed by Chang Haonan, it can be said to be completely transformed. Although this will not directly increase the performance boundary of the aircraft, on the one hand it will be beneficial to flight safety, especially during test flights. On the other hand, it will also allow pilots to more confidently try to squeeze out the potential of this aircraft. In the past, in order to reduce risks, we could only exert 80% of our strength, but now we can exert 90% or even 95% of our strength. The actual combat level will naturally be significantly improved. ?Chang Haonan and Yang Wei walked slowly around the plane together. ??This plane really cannot be seen enough. However, halfway through the second lap, he suddenly frowned slightly. Because when he habitually looked under the wing, Chang Haonan remembered something that later made the Air Force resentful for a long time. Mr. Yang, I think the pylon interface on the innermost wing of our aircraft seems to be different from the two outside ones? He turned around and asked Yang Wei behind him. In fact, as a reborn person, he certainly knows that the answer is yes. The J-10''s inner wing pylons are basically designed to carry auxiliary fuel tanks and do not have a high-capacity data signal interface. As a result, the two most advantaged pylons cannot carry guided weapons. Even in situations where auxiliary fuel tanks are not required, only the simplest uncontrolled bombs or rockets can be used. On the one hand, this can save some costs, but it is mainly to leave more space inside the wing for the fuel tank. Almost all models equipped by the Chinese Air Force in the past were like this. There is no way. Before the Su-27, the Soviet aircraft that China came into contact with were all models equipped with frontline aviation, with single functions and relatively short range. ?In the Soviet army''s combat settings, they only need to take off and land from frontline airports to ensure that air superiority is not completely lost. The Army will take care of the rest. However, when these short-legged MiGs arrived in China, which has the same vast territory, they had to assume the responsibilities that originally belonged to the homeland defense air force. Therefore, fuel anxiety was generally very serious. From the J-5 to the J-7, China was constantly improving these models. The changing theme is "Let me see where else I can put a gas tank in." When it came time to design the J-8 and J-10, although the basic range was no longer so pitiful, design habits could be changed at any time. Therefore, these two models still retained a pair of missiles without dedicated data interfaces. shelf. ?After hearing Chang Haonans concerns, Yang Weis answer was almost the same as the formers expectation: Four pylons, two in the middle and two close to each other, are all enough...can the Air Force have so many missiles to hang on? It should be more important to ensure the basic range It can only be said that people cannot recognize things beyond objective reality after all. In the late 1990s, this is really not a problem, because at this time, the mission of the Chinese Air Force is still to simply defend air supremacy and not completely lose it, and to be honest, there are not that many missiles in the arsenal for you to hang, and each aircraft Keeping 4 hangers is enough. ?Its just that no one could have imagined that in just a dozen years, China would have a new type of air force capable of both offense and defense. At that time, the problem of insufficient racks began to cause problems. Four pylons are barely enough for air combat, but if you want to also perform ground attack, there will not be enough allocation anyway, so combat units have to come up with all kinds of weird asymmetrical mounts. ?Although it is not impossible to use, the combat efficiency will be reduced a lot. Faced with this explanation, Chang Haonan couldn''t possibly say that the Air Force will have a lot of demand for ground strikes in ten years. This rack design will be criticized by the troops, so they have to use some slightly more tactful methods: "This is indeed the case for us at the moment, but hasn''t it been decided before that the personal model will switch to a DSI air intake later on. The current version with an adjustable air intake can adapt to a wider range of speed changes, so Will take it for export. "If you think about the countries that will buy our Chinese fighter jets, none of them need a particularly large range. On the contrary, they all hope that the air force can only equip one type of aircraft that can cover all missions. Then at least it must be able to carry two, two, and nearly four aircraft at the same time. With the need for one air-to-air bomb and two ground-attack weapons, this design may not be conducive to competing with peers..." ifier ??Yang Wei was originally an unparalleled genius. I never thought that he was simply blinded by the current situation. Now I was reminded like this by Chang Haonan. Suddenly I felt that the world was vast. (End of this chapter) Chapter 402 Test pilots "talisman" Chapter 402: The Test Pilots Amulet In fact, this is the first time that Chang Haonan has truly participated in the preparations for the first flight of a new aircraft. Compared with the J-8C, which has been greatly modified based on the old model, and the J-H-7 or H-6 AIT, which have simply undergone limited equipment upgrades, the aerodynamic design, flight control design and various flight-related cores of the J-10 Parts are almost all new. ?Although some technologies related to electronic equipment and production processes have been verified on the J-8C, overall, the proportion of new technologies applied in prototype No. 1001 at this time still exceeds 40%. Under normal circumstances, this is a number that is enough to stop a person''s heart and lungs. Not to mention the parties involved such as Xue Chishou or Song Wencong, even if Chang Haonan lives again, he knows very well that the J-10 with a figure of up to 60% in his previous life can still successfully complete its first flight. At this critical moment, some nervousness will still arise. There is no other way, rationality is rationality, and emotion is emotion. ?The stability control system designed by Chang Haonan can only avoid engine failure due to intake distortion, but accidents are not foreseeable by humans at all. ?This actually raises another question, that is, as he affects more and more of the timeline of this life, there will be more and more things that are difficult to predict like when he was just reborn. ?Furthermore, the recent floods that broke out early in 1997 also seem to mean that the two timelines themselves have some slight differences in some random factors. If the multi-game randomness is a game setting, it will naturally improve the playability to a great extent. However, in reality, it is not easy to get a chance to cheat in a multi-game life. As a result, many things are different from the previous life. Same, but not as interesting. That evening. After completing the power-on inspection of the aircraft as usual, the comrades in charge of each system of the No. 10 Project and the relevant personnel of the China Flight Test Institute who were about to participate in the test flight gathered together to hold a pre-flight preparation meeting. General preflight preparation meetings are held literally before takeoff, but the situation of the first flight is different after all. Sufficient time must be left for the pilot, so it has to be carried out in advance. Chang Haonan attended as "one of the important designers of the flight control system". Comrades, let me first clarify to you the entire process of the test flight tomorrow morning. Xin Xiaowen, chief flight test engineer of Project 10, tapped the table with a pen and began to speak first. As a brand new key model, the J-10s original first flight was relatively conservative, with the J-10 simply taking off, flying around the field for two weeks, and then landing. There''s no need to even retract the landing gear. The largest movement range is a steep turn. But even these seemingly simple and ordinary subjects are still full of uncertainties for a plane that has never flown into the sky before. Prior to this, aircraft No. 1001 had conducted several high-speed ground taxiing tests. Chief test pilot Lei Qiang even completed a brief lift-off lasting a few seconds during the wheel-raising test, proving that the aircraft was not advanced in basic design. There is no problem. In other words, it is definitely possible to take off. But the problem is that neither the iron bird platform (a comprehensive test bench for the flight control hydraulic system, equivalent to a simulator) nor the ground taxiing can simulate the true response characteristics of an aircraft. Flying an airplane is somewhat similar to driving a car in some ways. ?For example, there is an "operating feel" that is difficult to quantify, mysterious and mysterious but does exist. ?Each model of aircraft has its own distinctive personality and characteristics. ?Taking the simplest take-off as an example, after reaching the take-off speed, the pilot pulls the stick, how long does it take for the aircraft to feel its head rising? How much force and speed do you pull and what will happen to your head speed? At what angle will the plane stop when it raises its head? How responsive is the engine after pushing the throttle lever? At what rate should the throttle be controlled to achieve a balance between maintaining stable operation of the engine and flexibly adjusting the power level of the aircraft... ?These are things that can only be felt one by one when a real airplane flies into the sky. These simple subjects set up in the first flight are largely to test this feel and pave the way for more complex test flights in the future. One of the major features of Project 10 compared to all previous aircraft projects in China is that the test flight team participated in almost the entire design process of the aircraft. Therefore, Lei Qiang, the chief test pilot, is relatively clear about what Xin Xiaowen said. ??Despite this, he still kept his head down and took notes meticulously. Being serious, meticulous and meticulous can ensure nothing goes wrong. The J-10 adopts the dual logic of force feedback and displacement stroke in the flight control design. This is a first in the world, and there is no mature experience for reference. After Xin Xiaowens speech, Yang Wei, who is mainly responsible for flight control design, emphasized: Although all test pilots have adapted to the iron bird platform for two years in advance, this dual logic has not yet been implemented on the ground. To restore it, when controlling the joystick, you must pay attention to the strength of the hand and the stroke of the joystick at the same time. The two will work together to affect the response of the aircraft to the operation. We need the test pilots to feel the current situation during the first flight. Whether the weight of the impact of the two on flight control is appropriate, and the specific flight control quality. ?Lei Qiang wrote down what Yang Wei said with a red pen, and then raised his head: I understand, I will pay more attention to this aspect tomorrow. At this time, Chang Haonan, who had been silent just now, also added: If I have to describe it, this feel should be similar to borrowing some F16 operating logic based on the Su-27. Although it was six or seven years ago that this control logic was adopted, he had learned about it when he and Yang Wei incorporated the active stability control system into the comprehensive flight control program. That''s how it feels. ?Of course, there is another level of reason for adopting this statement - ?Lei Qiang may be the only pilot in the world in this era who has flown both the F16 and Su-27, two typical fly-by-wire fighter jets. So when he heard what Chang Haonan said, he nodded lightly and understood almost immediately. F16 adopts a quite radical side-lever position afterburner feedback control logic in the cockpit design, which can theoretically greatly improve the pilot''s convenience in controlling the aircraft. ??However, the actual feedback situation is not like this. The force feedback control method is too anti-human and almost completely offsets the control advantage brought by the side stick design. Although the flight performance of the F16 itself is quite superior, the "user experience" it brings to pilots is very average. The flight quality under most envelopes is in the second and third categories, with only an extremely narrow first category area. Somewhat similar to an F1 racing car, it has high performance but is difficult to drive. It is a proper equipment for experts. This also results in the F16''s proportion of two-seat models being far greater than that of almost any other aircraft. The J-10 has learned this lesson in its control logic and chose to combine force feedback and displacement stroke feedback. In fact, all subsequent third-and-a-half-generation and fourth-generation fighter jets have adopted similar strategies. This may be the first time that the Chinese aviation industry, which was still very weak at the time, has led the trend in some aspects. ?However, as "the first airplane to try something new", naturally there is no previous experience for reference. We can only let Lei Qiang go up and explore by himself. The joystick put a lot of pressure on the test pilots. After all, this is the first aircraft in the world to use this kind of control logic. ?Perhaps feeling that the atmosphere at the meeting was a bit heavy, Yang Wei suddenly changed the topic and adopted a more relaxed tone: "But there is also good news. Thanks to our latest version of the flight control update, the operation of the throttle lever has become much simpler than in the past. Although the engine is not produced by us after all, we cannot achieve full digital control with complete functions, but Under some extreme working conditions, the flight control system can automatically control the operating status of the engine to avoid exceeding safety limits. " After finishing speaking, he turned his eyes to Chang Haonan next to him, indicating that the latter could introduce it in detail. Although it has played an important role in the ground testing process, as a function that was only recently added to the J-10 flight control, quite a few people still lack a comprehensive understanding of it. For ordinary users, there is no need to insist on knowing the reason, but since it is a test flight, there is no harm in knowing more. Furthermore, it can also improve the test pilot''s confidence in the aircraft. Thats right, this system uses a specialized algorithm that can detect some surge precursors that were difficult to detect in the past. After detecting abnormalities, it can automatically handle them and inform the pilots in the cockpit of potential risks..." Chang Haonan introduced the basic principles, working logic and applicable situations of the active stability control system in about half an hour in the shortest possible language: This system can help pilots avoid worrying about engine stability, allow more extensive adjustments to the throttle lever, and will automatically select the most efficient method under safety conditions... The pilot just pushes the throttle, and the flight control does the rest! Chang Haonan borrowed an advertising slogan that did not exist in this era and said it in a slightly joking tone. The atmosphere in the venue finally became more lively. Actually, his set of things is a bit like the airplane version of quattro. Comrades from the Flight Test Institute listened especially carefully when Chang Haonan introduced it. ?Especially when he said that he could predict potential risks in advance and automatically reduce the speed to avoid them, many people had complicated expressions on their faces. As the test flight unit that bears the greatest risk, countless of their predecessors have died due to surge, the biggest enemy of flight safety. If such a set of things had been available before, many accidents would have been avoided. Comrade Chang Haonan, this is an amulet for our test pilot... (End of this chapter) Chapter 403 J-10, take off! (Ask for a monthly ticket) Chapter 403 J-10, take off! (Please ask for a monthly ticket~) Two days later, it was early morning on the day of the first flight. The stands set up next to the runway of the test flight station were crowded with people. From the top leaders to the technical representatives sent by the Air Force, everyone was eagerly looking forward to the first flight of China''s first independently designed and manufactured third-generation aircraft. About an hour ago, when it was just dawn, a thin morning fog appeared over the airport, which made everyone worried about whether the first flight could proceed smoothly. However, as the sun rose, the fog was quickly dispersed. The weather finally returned to the fine state mentioned in the forecast. In the final assembly workshop, due to the experience of previous ground tests, the cooperation between the staff of Factory 132 and the flight test station was already familiar, and the front wheel of the aircraft was quickly fixed on the clamp of the special tractor. ?Song Wenchong and Xue Chishou both wore suits for the first time. The two of them, who were usually unprepossessing and unkempt due to frequent visits to the factory, really looked somewhat dignified once they dressed up. An engineer trotted over from not far away: Report, the inspection work before the first flight of the No. 10 Project 1001 prototype has been completed! After speaking, he handed over a document he was holding. Chief flight test engineer Xin Xiaowen, chief designer Song Wencong, chief engineer Xue Chishou and aircraft assembly chief Xu De signed their names in turn. Looking at the plane that was ready in front of him, Xue Chishou only said two words with mixed emotions: "Set off!" With his order, the aircraft tractor made a low roar, and then towed the 11-ton aircraft and started lightly - Since the flight was not expected to last too long, in order to reduce the take-off weight, only a relatively small amount of fuel was added. Even after the pilot sits on it, the actual thrust-to-weight ratio of this aircraft will exceed 1.1. Song Wencong stared at this fighter plane that he had put all his efforts into for the past fifteen years, and the corners of his eyes turned slightly red. In fact, since he became the chief designer of Project 10, he has spent much more time with this aircraft than with his family. Therefore, it is no exaggeration to say that the J-10 is like a biological child to him. The same goes for everyone involved in design and manufacturing. Too many people have left all their youth, blood and even lives to Project No. 10. Lets go, lets go there too, dont keep the people at the scene waiting too long. Similar to the first time prototype No. 1001 left the assembly shop for the engine start test, no one got on the bus that had been prepared next to it, but divided into two groups and followed them along the taxiway. Xue Chishou''s 28-inch tire was punctured, so he couldn''t ride at the front like last time. He had to stand on the pedal next to the front of the aircraft tractor to clear the way for the aircraft. ?However, these regrets were quickly dispelled after arriving at the test flight site ?Nearly everyone on the viewing platform stood up in unison the moment they saw the plane appear at the end of the runway. This is their recognition and respect for this aircraft and the developers of Project 10. ?Chief test pilot Lei Qiang has already been waiting here. The night before, he, who had always been in good mental condition, suffered from insomnia for the first time. ??For the test flight mission of Project 10, it would be absolutely false to say that I am not nervous at all. ?In a routine physical examination before the flight just now, his heartbeat, which is usually in his early 60s, directly measured the highest number of 125. ??However, this nervousness is not due to concerns about his own safety, but about the aircraft. As a member of the flight test team who has been involved in the aircraft design, development and manufacturing process since 1993, Lei Qiangs feelings for the J-10 are no less than those of Song Wenchong and others. Without saying a word, he gave a long military salute to Song Wenchong, Chang Haonan and other people following the J-10, and then turned around to board the plane. Chang Haonan listened to Lei Qiangs briefing before his rebirth, so he remembered very clearly that in the original timeline, Lei Qiang had made a somewhat undisciplined statement before the first flight As long as the plane doesnt break up in the air, even if it crashes, I guarantee it will crash on the runway! But this time, Chang Haonan, who was fully involved in the preparations for the test flight, had never heard of it. This somewhat made him feel a little relieved ?Prototype No. 1001 in the previous life did have a lot of ups and downs before its first flight. Not only was it seriously injured twice by engine accidents, it also had many minor problems during the taxiing test, which delayed the test flight date for almost half a year. Now, his research results have helped the aircraft smoothly reach its first flight. The confidence of the test flight team has obviously been greatly enhanced by this. On the other side, Lei Qiang, who sat in the cockpit of the aircraft, took two deep breaths and began to check the aircraft''s movements and switches one by one according to the process. After focusing on flying, his heart gradually relaxed along with the movements of his hands. This is the quality of a top test pilot. Its not that they wont be nervous. But they can overcome the tension. The ground inspection process is completed and the engine is ready to be started. Lei Qiang''s completely calm voice came over the radio. Received, ready to start the engine. Xin Xiaowen replied. With a short and slight vibration, the characteristic roar of a jet engine sounded. ?This noise that usually sounds high-pitched sounds like celestial music to the ears of everyone present. The engine started successfully. Soon, the auxiliary vehicles around the aircraft were gradually removed, and the first flight officially began. In the cockpit, Lei Qiang pushed the throttle with his left hand while keeping his eyes fixed on the tachometer. ? He ??pushed harder and harder than usual, like a rookie sitting in the cockpit of a fighter jet for the first time. In the past, old aircraft, including some early third-generation aircraft, the engine speed changes completely followed the action of the throttle valve. If its on a car, this might be called driving fun, but its definitely not for an airplane. Flying an airplane only requires safety, not fun. Changing the throttle position too aggressively or frequently may cause engine failure, so this requires the pilot to pay attention to the working condition of the engine at all times even in the most intense air battles, which is obviously a huge additional burden. ??But on this aircraft, the rotation speed of the tachometer pointer only became a lot faster, but it did not appear unstable at all due to the jerky movement. Obviously, the engine stability control system in the flight control program is working. Its so perfect ?Lei Qiang thought in his heart. ?The rotation speed increases faster, which faithfully reflects the pilot''s sudden push of the stick, that is, the operation intention of violent acceleration. The uniform acceleration is to help the pilot ensure the stable working condition of the aircraft. For a veteran test pilot like him who has flown tens of thousands of hours and more than 20 models of aircraft, this function may not be too important. But for the majority of ordinary pilots, it is simply a leap from manual transmission to automatic transmission. ??And this automatic transmission is also an AT transmission with smooth shifting logic and extremely perfect adjustment. When the engine speed increased to 30%, he released the brake handle. The plane began to accelerate lightly on the taxiway and soon reached the scheduled take-off position. Out of the corner of his eye, Lei Qiang noticed through the rearview mirror in the cockpit that there were many people wiping tears at the end of the runway and on the management platform. On another runway not far away, a Trainer 8 seconded from a brother unit was also accelerating. Sitting there were the chief flight companion test pilot Li Yong and a photographer. Rongfei Flight Test Station originally only arranged for a JJ-5 to fly as a companion, but at Chang Haonans insistence, it was changed to a model with better cockpit conditions and visual field conditions. Chang Haonan, who has flown as a companion before, knows that with the cockpit view of the J-5 being worse than that of the J-7, it is almost impossible to take any good photos. On the one hand, after the first flight, these photos are still needed to confirm some situations. On the other hand, there is Chang Haonans selfishness The business of military propaganda must be grasped in advance... ?Lei Qiang pushed the throttle valve again, gradually increasing the engine speed to the maximum. Prototype No. 1001 only used about 300 meters of the runway to reach ground speed, even faster than the trainer aircraft following it. ?Lei Qiang gently brought the lever backward with his right hand, and the canards immediately rotated lightly, faithfully feeding back the head-up torque to the aircraft. ? Just this one action fully demonstrated the agility of the aerodynamic design of the J-10. Because almost at the same time he pulled the lever, there was a feeling of overweight, and prototype No. 1001 officially made its first flight! Theres still more in the afternoon, so Ill beg for a monthly pass~ (End of this chapter) Chapter 404 First flight, success! (Additional update, continue to pray for the moon Chapter 404 First flight, success! (Additional updates, please continue asking for monthly votes) On the other side, after Lei Qiang piloted the aircraft into the taxiing stage, the engineering and technical personnel not directly involved in flight command, including Chang Haonan, were transferred to the management desk. ??When No. 1001 lifted its wheels in the first half of the runway, everyone at the scene even burst into confusion. After all, under normal circumstances, in order to ensure nothing goes wrong, an aircraft carrying out its first flight will choose to taxi on the runway for a while, increase the speed to a safer level, and then choose to take off. Moreover, the more common models of the Chinese Air Force, the J-7, Qiang-5, and J-8, are all players with very high take-off speeds. Therefore, many people who have not paid special attention to the field of aviation technology will subconsciously think that they are hundreds of times larger. A sliding distance of one thousand meters is normal. Comparatively, it is indeed too early for the J-10 to lift its wheels less than 400 meters away. The plane hadnt even reached the front of the viewing platform. In fact, Lei Qiang, who was piloting the plane, initially wanted to press the nose of the plane and pull the plane up as close to the center of the runway as possible. The first is to leave some redundancy, and the second is that the visual effect will be more shocking. However, the design of the canard and enlarged delta wing layout is indeed too good in terms of lift (the canard aircraft relies on lifting the front wing to obtain torque when raising its head, while the conventional layout relies on pressing the tail downward, which will lose a certain amount of total lift). In addition, in order to test the working condition of the engine control system, he deliberately pushed the stick harder, causing the aircraft to accelerate much faster than expected. In short, when the plane slid to a position just over 300 meters away, the tendency to lift off the ground was already very obvious. Pressing it down forcibly might cause certain risks, so Lei Qiang simply pulled the lever and demonstrated the excellent takeoff and landing of Project No. 10. ability. Unlike second-generation aircraft that pursue high altitude and high speed, the design theory of third-generation fighter jets will pay more attention to real maneuverability and agility at medium and low speeds. Although the take-off and landing capability does not directly reflect maneuverability, it is also a relatively intuitive reflection. Especially for laypeople who dont know much about aviation or the air force. ?During the taxiing process just now, the J-10''s engine control system left a deep impression and strong confidence on Lei Qiang, so he finally chose to implement Plan B specified at the pre-flight preparation meeting. That is, a relatively radical plan. After confirming that the aircraft was safely off the ground, Lei Qiang did not let the aircraft continue to climb at a small angle. Instead, he quickly pushed the throttle and continued to pull the lever, allowing the prototype to rush straight upward at an angle of about 70. This is also the limit Xin Xiaowen set for him. Although the J-10 can theoretically maintain acceleration while flying vertically upward when carrying a light load and light fuel, it is still its first flight after all, so it still has to take its time. ?Of course, the so-called "take it easy" is relative to the limits of the aircraft. ?Due to the angle of the viewing platform, from the perspective of the audience at the scene, aircraft No. 1001 almost performed a vertical climb immediately after takeoff. The doubts on the viewing platform turned into exclamations, followed by warm applause. After a short and rapid climb, Unit 1001 reached the scheduled altitude of 2100 and a speed of 490. ?The weather conditions at the scene were excellent because of the beautiful weather. Even with an ordinary telescope, one could clearly see the posture of the two aircraft in the sky. According to the previous test flight plan, the next step is to circle the field for two weeks. The hovering angle in Plan B is also larger, close to 90, and there are two roll flights. Although they are not dazzling maneuvers, for the audience at the scene, seeing the first third-generation aircraft completely developed by our country take off is already surrounded by a huge sense of happiness. Chang Haonan, who had watched many J-10 first flight videos in his previous life, did not focus all his attention on the air. After the first lap around the field was over and it was basically confirmed that there was no problem with the flight conditions, he communicated with the flight test station through the intercom. Understand the feedback from test pilots in real time. And by the way, he guided the photographer sitting on coach 8 to take photos. In fact, he even wanted to repeat the old trick at first and then take charge of photography himself. ??I just thought about it and still didnt mention it. Chang Haonan is completely different now from a year ago. ? At that time, he was just a young technician who was just starting out. Although he had shown some talents, his own value did not exceed the level of a normal person. He could only fly as high as he could. ?Now that he has achieved a small achievement, I am afraid that even if he proposes it, it is unlikely to be allowed. In order to ensure adequate flight performance, the accident tolerance of tactical aircraft, including trainer aircraft, is several orders of magnitude higher than that of passenger aircraft. Look, its rolling, its rolling! ?Chang Haonan put down the walkie-talkie and heard another burst of excitement around him. He also raised the telescope in his hand again and looked at the sky. After all, this is a test flight content that was not available in the previous life. As an aircraft that focuses on agility, the J-10''s roll rate is among the best among third-generation aircraft. Two consecutive 360 rolls are completed in a short time, and the show effect is full. Obviously, the performance of the aircraft is quite good. And in the process of taking off for the first time, the pilot has been given enough confidence. This is actually quite difficult. Many models that were very successful later did not go well during the initial test flight. Su 27, F15, F16 are all the same. Even the J-10 in the original timeline is the same. ?Although there have been no major problems, there are quite a few minor problems. ?However, now, the No. 1001 aircraft, which has not experienced those two damage repairs, is obviously much more perfect. The test pilot even said on the radio that he didn''t think it looked like an airplane on its first flight. The moment he put down the telescope, Chang Haonan noticed that the leader in the front row had taken off his black-rimmed glasses and used this action to lightly wipe the corners of his eyes. ?At this moment, the walkie-talkie placed next to Chang Haonan rang again: The pilot reported that the aircraft was in very good condition, with sufficient fuel remaining, and requested a go-around and two more laps. Xue Chishou and several other people looked at each other a few times, and they all saw the same answer on each other''s faces. Approval request. ?Yang Wei picked up the walkie-talkie and replied. Soon, the prototype aircraft that had completed its second circle reappeared far away from the end of the runway and slowly descended. ?The test flight went smoothly, and there were even people on the auditorium stand ready to get up and go to the tarmac to greet the pilot as he disembarked. ?However, the plane only lightly scraped the ground with its main wheels, and then accelerated and climbed again, returning to the air. After almost a full second of silence, everyone realized that this was part of the first flight. ?At this point, even people who dont know anything about aviation know that the plane should be in pretty good condition, otherwise it wouldnt be doing so much fun. The cheers and applause started again. ?Five minutes later, as a red and white parachute bloomed behind the aircraft, the first flight of Project 10 was finally successfully completed! Rongfei originally arranged a shuttle bus to take people on the viewing platform to the tarmac to greet the pilots, but because the number of people present to watch far exceeded the initial expectations, many people still had no seats. . ? Many spectators who were in their forties or fifties, or even older, couldnt wait to get on the next bus and immediately followed the car and flew all the way. Fortunately, the distance between the two is not far, otherwise Chang Haonan would still be a little worried ??If the plane and the test pilot were safe and sound, but something happened to the audience, it would probably leave a mark in the history of international aviation... ??When a flood of people rushed to the apron, the J-10, which had thrown away its drag chute, happened to follow the guidance and parked at the pre-designed parking spot. The moment the canopy was opened, cheers almost filled the sky. ?Lei Qiang took off his oxygen mask and flight helmet on his own, and then waved outside. The test flight just now was obviously not abnormal, at least it did not put any great physical burden on him. A young ground staff struggled to get through the crowd holding the boarding ladder and put it on the left side of the cockpit as usual. Then he felt as if someone was tapping him on the shoulder. "What" ?Halfway through his words, he turned around and found that what came into view was a face he had only seen on the news network in the past. Comrade, please go and fetch a ladder. We want to take a photo with the test pilot. Ehgood, good The young man who was personally instructed by the leader was a little embarrassed to speak in excitement, but he still moved the other boarding ladder from the coach 8 not far away in the shortest time, leaving Li Yong who had just opened the cockpit and the front seat. The photographer stared blankly. The second boarding ladder was quickly set up on the other side of the cockpit. ?Chief Engineer Xue Chishou and the top leaders took a photo with Lei Qiang, who had just stood up from the cockpit. Thank you, thank you for everything you have given! The leader looked around, first to the test pilot, and then to everyone around him and said loudly. ?According to Chang Haonan''s speculation, many people at the scene should have cried with excitement. As to why it is speculation Because his vision was also a little blurry. (End of this chapter) Chapter 405 why is it you again? (10,000 per day, please vote monthly) Chapter 405 Why is it you again? (10,000 per day, please vote monthly) ?Nearly everyone present naturally wanted to take a photo with the test pilot and the aircraft at this historic moment. Just considering that Lei Qiang had just completed his first flight, even if his physical condition seemed normal, the post-flight inspection and test flight report still had to be completed, so after taking photos with some personnel including Song Wenchong, Yang Wei and Chang Haonan , he left the cockpit despite the strong request of the ground crew and stepped onto the ground again. ?At almost the same time, several handfuls of flowers from different individuals and units were delivered to Lei Qiang at almost the same time, so much so that he almost couldn''t catch them. Following that, there were all kinds of questions that flooded my ears. About the airplane, the first flight, and himself. ?Lei Qiang could only distinguish a few familiar voices to answer: The aircraft is very comfortable to fly, and the pole position operation is generally intuitive I cant feel the light effect in the cockpit. Its daytime. Well have to wait until we fly at night... The operating feel is generally light and the response speed is very fast, especially the power, the push rod has it! A minibus drove from a distance, with a medical team already on board. They would conduct a complete physical examination on the test pilot to eliminate the last hidden danger. ?Before getting on the bus, Lei Qiang shook hands and hugged several comrades who were responsible for key parts of Project 10. When it was Chang Haonan''s turn, he even patted him **** the back. Judging from the force used and the banging sound, he probably didn''t shoot other people because he was too old to withstand the blows. Comrade Haonan, your engine control system is as important to the pilot as the ejection seat! This is naturally a very high evaluation. While speaking, familiar faces appeared in Lei Qiang''s mind one after another, making him excited and a little sad at the same time. There are too many people who did not get to see this day. Considering that there are still some necessary post-flight inspections and maintenance to be done after the plane lands, and it is neither decent nor safe for a large group of people to stay on the tarmac for a long time in a mess, so after taking the pilot off the plane, remove the necessary In addition to the ground crew and other technical staff, a group of people quickly moved to the small auditorium of Factory 132 by car. ?Chang Haonan has also ridden in Toyota Coaster that was specially responsible for reception work in various units several times before, but this is indeed the first time he has experienced this model that has been specially modified to transport VIPs. In addition to the routine removal of seats and replacing them with conference tables, the material and size of the seats are also much larger, similar to those in first class airplanes. The cab and passenger cabin are separated, and there are many screens, communication equipment and simple living facilities installed on the car. It cant be said to be very magnificent, but overall it is indeed closer to the cabin of a passenger aircraft that has been reduced by a few sizes. On the way out of the airport, Chang Haonan looked through the side window of the minibus and saw many employees and family members of the 132 factory who had not been able to enter the infield to watch the first flight, staying on the roadside, some hugging each other, and some talking to each other. The team cheered, and some also wiped the corners of their eyes. It took 11 years from the project establishment in 1986 to the successful first flight. ?Although these people did not leave their names in the history books like Song Wenchong or Xue Chishou, they still devoted all their efforts to the No. 10 Project. Everyone regards this plane as their own child. Comrade Wen Cong, after the first flight is successful, do you have any follow-up plans for the subsequent development of Project 10? I want to hear it. ??The senior leader in the same car put down his hand to open the sunshade, turned around and asked Song Wencong, who was sitting in the row slightly behind. The tone of the question is relaxed and sounds more like ordinary casual conversation rather than a formal leadership question. Perhaps for this reason, Song Wenchong thought for a while and said sincerely: Chief, this question should be answered by Comrade Yang Wei. He is the main person in charge of the follow-up research and development work of the J-10. Obviously, this is creating opportunities for young people. Song Wencong, born in 1930, is nearly 70 years old this year. ?According to the original plan, he was ready to retire after completing the design of the J-7C. It was entirely because he could not let go of Project No. 10 that he gave up his leisurely retirement life and worked **** the front line until today. But as he gets older, he does feel that his energy and concentration have declined significantly compared to when he was young. ?Now that the J-10 has successfully made its first flight, he will at most **** the basic model until it is finalized and put into service. As for the subsequent longer-term development plan, there is no doubt that the baton will be handed over to the next generation. In fact, the chief designer of the J-10 two-seater model that is already in the design stage is Yang Wei. The world will eventually belong to young people. ??Yang Wei, who was further back in the row, was suddenly stunned when he heard his name, and then noticed the encouraging look from Song Wencong. ?So he composed himself and answered: "We currently have two prototypes in production, namely the No. 02 machine used for static testing and the No. 03 machine equipped with complete avionics and fire control equipment testing. About 40% of the test flight projects are composed of 01 and 03 Two first-stage prototypes will be used to complete it. According to the plan, the subsequent verification machines No. 04 and No. 06 will be upgraded in terms of overall design..." The two-seat trainer model is also developing simultaneously. The current planned name should be called J-10S. The overall design has basically come to an end. However, the prototype production work is still planned to be carried out after the single-seat model has basically stabilized..." ?Yang Weis answer is relatively general and does not involve too many specific technical details and proper nouns ??If you introduce a technical concept that is relatively unfamiliar to everyone, you may need ten other technical concepts to explain it. This will be endless and will only make the entire answer lengthy and lacking focus. But if you dont explain it, firstly, it will cause others to be confused, and secondly, it will also appear that they are not very smart. So this is basically the most effective way to deal with non-industry people. ??However, the chief in front of me also has an engineering background, and he almost went to university to become a professor. Although he is not an aviation major, he knows everything about some things, and at least his understanding is definitely online. So the two prototypes of 01/03 will adopt different design solutions from other prototypes that will follow. Where are the upgrades specifically? Project No. 10 was a project that he personally secured back then. Now that it has finally achieved some landmark results, he is naturally very concerned about its subsequent development. "We plan to use a boundary layer-free supersonic inlet, which is simply..." ??Yang Wei racked his brains in the hope of describing the DSI air inlet in a relatively easy-to-understand language, but the leader in front of him had obviously done a lot of homework: Is it the one the Americans are going to use on the JSF project? This answer is indeed beyond everyone''s expectations. You must know that the proliferation of consultations these days is not very developed, such as JSF projects and DSI air intakes. Not to mention laymen, even some ordinary practitioners, if Unless you specifically track the cutting-edge information of the industry, you may not be able to know it in such a timely manner. Yes, its that kind. It has a simpler structure, lighter weight, and smaller radar reflection area. It is currently the most cutting-edge technology. Strictly speaking, before real flexible skin technology is put into use, it is still difficult to simply define the DSI air intake as "better" due to its inevitable narrow optimization range. But it is definitely more advanced and more difficult to design. Can we guarantee that this cutting-edge technology will be put into use on the fourth prototype? I mean, will the pursuit of advancement affect the project progress? A knowledgeable leader obviously considers issues more comprehensively. You can rest assured about this. In fact, the DSI air intake has been pre-tested by Comrade Chang Haonan on another model..." ??The chief followed Yang Wei''s instructions and looked at Chang Haonan, who had been silent. ?At this moment, the latter was very sure that he saw a flash of emotion called "shock" in the other person''s eyes. ?That means probably: Why is it you again? (End of this chapter) Chapter 406 Make cakes for leaders Chapter 406: Making cakes for the leaders That''s right, the two people have actually met before. ?Last year, in Shengjing, the test flight site of the No. 04 J-8C prototype aircraft. ?Chang Haonan''s appearance doesn''t have many characteristics, at least not to the extent that people can''t forget it after just one glance. But in this situation, his age is the biggest feature. In fact, the specifics of who can get on which car today and whether they can have direct contact with the big boss have naturally been reviewed by the security department early in the morning, and even the list of people in this car has been finalized. The chief himself must have also Saw it directly. ??However, looking back, it is impossible for him to have the energy to understand the specific identity information corresponding to each name one by one. ?Of course, the more critical issue is Under normal circumstances, who would have thought that the same person would have appeared at the test flight sites of the Project 83 and Project 10 models one after another, and also assumed important tasks in both cases? Furthermore, the Organization Department just recently approved the establishment of a new enterprise under the Academy of Sciences, and the person in charge is the young and somewhat shameless Chang Haonan. ?Shouldnt he be busy preparing to build a leadership team in the capital at this time? In short, even if you still have some impression of this name, your first reaction must be a coincidence of the same name. Therefore, when the chief really recognized that the other person was the young man he had met at Shengjing Beiling Airport more than half a year ago, even he who was used to seeing big winds and waves was really surprised. ?However, the big leader is a big leader after all, and his surprised expression only lasted for a short moment, and then he gently pushed up his black-rimmed glasses, indicating that Chang Haonan could start introducing the situation. ??The latter really had no psychological preparation before, and was indeed a little confused when he was suddenly asked to speak by the big leader. Fortunately, he provided Sun Huizhong with the overall design method and technical guidance on key parts. He had the goods in mind and would not panic in his heart, so he simply organized his words and said: "Chief, it''s like this. I presided over the development of a brand new design tool some time ago, so when designing the DSI air intake, we can use a different design method from the Americans. Although the calculation is more difficult, the efficiency is much higher. , its normal to be ahead of them Chang Haonan spent a few minutes to briefly introduce the advantages of the close cone method compared to the generated body method, and the Torch Company has just released a test version of the TORCH Multiphysics software. It was a work progress report conducted quietly. Thanks to a speech that was widely circulated in his previous life, he understood some situations better than anyone else sitting in the car. Although the most outlandish part of that speech is the part about "a person''s destiny...self-struggle...historical journey...", if you have read the full version, you will know that the chief minister in front of you actually has a deep understanding of the engineering profession he was engaged in when he was young. Very concerned and proud of it. So, although Chang Haonan still omitted all the theoretical calculations, he still retained some professional knowledge from an engineering perspective. It must not only be understood by the leader, but also be enjoyed by the leader. Judging from the other partys intoxicated expression and frequent nodding, the effect of his words should be pretty good. "New design methods and theoretical tools are good. Scientific researchers must be brave and good at innovation. It is important to learn from the advanced experience of developed countries, but after all, we must also have our own ideas and do something that others have not done. thing." After some high praise, the senior leader signaled Chang Haonan to continue speaking. Obviously, I am still satisfied with what I just heard. Chang Haonan happened to not have finished speaking yet, so he calmed down and continued: "In addition, although there are very advanced tools and theories, I personally have confidence in the perfection of the design, but from the perspective of risk control, almost half of the J-10''s subsystems have already applied new technologies. If we continue to It is still risky to put an air inlet that has not been tested in practice, so in order not to delay the progress of Project No. 10, in the first half of this year, I teamed up with comrades from Guizhou Airlines to plan to put the DSI air inlet first. Conduct technical verification on a new higher-education aircraft improved from the JJ-7. If there is technical verification, it will indeed be safer. The chief was obviously very satisfied with Chang Haonan''s answer, and then he naturally paid attention to the higher education aircraft mentioned by Chang Haonan: So whats the progress of this verification machine now? What step has it taken? And the latter is waiting for this problem. "The design of the entire aircraft has been basically completed. The wind tunnel is now being blown in Fucheng. If the design specifications can be met, the next step is to start producing the prototype and then test it. After obtaining detailed data about the DSI inlet , will be used on Unit 1004. This answer reflects the rigor of an engineering staff and the pursuit of reliability and safety. More importantly, although money is not mentioned anywhere, money is everywhere. This is also the idea that Chang Haonan first designed for Coach 9. Hold the thighs of Project 10 tightly. ?Although the name is not as good as the independent item, the actual benefits will only be greater. ?An advanced trainer aircraft project does not require a lot of manpower and material resources. In the last life, under more difficult conditions than now, Guifei finally even completed it on its own, but it only took a few more years. Now as long as a little leakage of funds from the No. 10 Project is enough to solve their most urgent survival problem. Today, China''s scientific research funding and military expenditure are indeed not sufficient, but it can be regarded as entering a period of rapid growth. Compared with the turn of the 1980s and 1990s, it is not a little bit better. It will certainly not be a burden to make targeted investments in at least one or two common projects. ? It''s just that you have to give your superiors a suitable reason, otherwise there will be too much money for you, so why invest in your project alone? ? And "verifying Project No. 10" is undoubtedly the most reasonable explanation. As expected, the chief nodded immediately: We still need to hurry up on this matter. We would rather let technology and other equipment go before it affects the overall progress of Project No. 10! This sentence is enough. ?The big leader stated that in many cases it is not necessary to deploy everything in detail. As long as he reveals his own tendencies, someone will naturally be responsible for getting the specific things done. ?Of course, everything has two sides, which also means that he cannot write all his likes, dislikes, joys and anger on his face like ordinary people. ?This is in the relatively closed space of a private car, otherwise Chang Haonan might not be able to detect even the subtle changes in his expression just now. ?After the topic about the DSI air intake ended, Yang Wei once again took up the topic: "In addition, regarding the future two-seat model, we plan not to continue the idea of ????Jianjiao 7 or Jianjiao 6 and design it as a specialized training aircraft of the same model. Instead, we will learn from advanced foreign experience, like the Su-27UBK or F16D , so that it has the same complete combat capabilities as a single-seat aircraft, so the naming method will no longer be JJ-10, but J-10S. The two-seater model of an aircraft is generally rarely paid special attention to by laymen. After all, it looks not much different from a single-seater at first glance. But for Yang Wei himself, the J-10S will be the first time he takes on the role of chief designer. As a teacher position, I naturally hope to be able to complete it more beautifully. In the early years, the equipment of the aircraft was not advanced enough, and the aircraft itself was also small. It was quite troublesome to fit more than one person in. Therefore, most aircraft designed in the 1970s or earlier were either two-seater (F4, F14). ), or there is no two-seater at all. If it must be modified from a single-seater, then it will either lack a few guns, or there will be no radar at all. In short, there is no need to expect to have complete combat capabilities. But on the third-generation fighter jets, single- and two-seaters have gradually begun to obtain the same airborne equipment. In this way, although the two-seat model will have some discounts in flight performance, it can still perform the same tasks as the single-seat model without causing any problems. Too many resources wasted. After all, the unit price of fighter jets at this time is already quite astonishing. One-fifth or one-fourth of the aircraft in the fleet can easily be left idle, which even a superpower cannot afford. In other words, Project 10 will develop a total of four different configurations using two types of air intakes and single/double seats in the future? Thats right. ?Yang Wei nodded: We are not going to waste models like the 01 and 03 prototypes that use rectangular adjustable inlets, because their theoretical maximum speed and ceiling are more advantageous. "This may not be important to the Chinese Air Force, which already has Su-27 and J-8C, but it will still be attractive to some small and medium-sized countries that want to use one aircraft to take over all tasks, so we plan to use this as a basis Basically develop a model specifically for export to compete with the F16 in the market! When he said "grabbing the market with F16", a gleam suddenly flashed in the eyes of the chief sitting opposite. In this era, due to the huge gap in national power between China and the United States, there was indeed a sense of powerlessness in the face of many things. This leader was later called the "Forbearance Emperor". ?But being able to endure does not mean that you are willing to endure it. The clay figurine still has a certain amount of anger. As long as there is an opportunity, who would not be willing to open up and express his anger openly? "well!" He said two good words in a row, and even patted the armrest of the seat next to him: You should have this kind of ambition! (End of this chapter) Chapter 407 Im super, duck wing! Chapter 407 I am super, duck wing! There is no need to mention the subsequent celebration meeting and the celebration banquet at noon. Even the leader, who was busy with everything, stayed at Field 132 for almost the first time for most of the day. It was not until the afternoon of that day that he went to the assembly workshop to take a look at the No. 03 prototype machine that was in the process of being manufactured. The first flight of a new fighter jet cannot be hidden at all. Not to mention the various big commotions before the first flight, which led to the wall-climbing party and the grass-climbing party squatting around the 132 factory. In fact, since the 132 factory is also responsible for the production of some civil aviation parts, there are simply not many in the factory. There are few engineers from the West. Even though their area of ??activity is restricted and they cannot run around at will, they are neither deaf nor blind and they are all insiders. Even if they rely on the wind and shadow, they will know what you are probably doing. As early as when prototype No. 1001 was towed out of the factory for ground testing a few months ago, the news that "China''s first self-produced third-generation fighter jet has been completed and rolled off the assembly line" has already spread. In fact, more than ten years after the previous life, the first flight of the J-20 had related news a few months earlier. The reason why many people were surprised is simply because there was no particularly developed self-media back then, and news circulation channels were limited. ?Besides, there is no need to hide this kind of thing in the first place. At most, it can be handled in a low-key manner and not take the initiative to publicize it. ?For matters that do not involve specific technical details, strategies and tactics, keeping secrets means keeping things secret. Therefore, although due to policy reasons, the news of the first flight of the J-10 prototype could not be reported publicly by official sources at the first time, there was no control over the relevant news. The plane took off for the first time in the morning. By the afternoon, anyone who paid a little attention to the development of Chinas aviation industry basically knew about it. At dinner time that day. ?Yangcheng, Haizhu District, in an Internet cafe near Yixian University. ? After Xi Boyang finished his internship at the school publishing house for the day, he went to the canteen as quickly as possible to grab a dish and two ounces of rice. He didn''t even have time to eat, so he rushed all the way here with his lunch box. Just a year ago, only a few coastal cities and regional central cities in China provided Internet access services. However, by mid-1997, all prefecture-level cities that could be counted had basically been able to access the Internet, and even some Computer rooms with Internet access have appeared in counties and towns in the region. ? Internet cafes, an emerging product, have also quietly begun to spread in some cities. ??Although the Internet fee is extremely expensive and the speed is still very slow, it still cannot stop people''s enthusiasm for contacting new things. ?Especially near schools, it has become a hot spot for Internet cafe business. ?The "Frenzy" Internet cafe that Xi Boyang frequents just opened here two months ago. ? Pushing open the slightly worn glass door, the rush of cold air inside even made him shiver involuntarily. ?This is also the main reason why he would rather spend an extra dollar an hour and come to this restaurant. There is air conditioning, and it is turned on very well. Anyway, with my part-time job at the publishing house and the royalties from contributing to magazines, I can still afford it. Compared to several other competitors that only have electric fans and are filled with the smell of sweat, the owner of Kuangchao is obviously very wealthy and has spent absolutely no expense on investment, which has also brought a better source of customers to his Internet cafe. After entering the door, Xi Boyang regretted that he only wore a half-sleeved shirt today, but now he couldn''t even bother to go back and get another piece of clothing. After skillfully handing over his ID card, paying, and getting a bottle of mineral water at the front desk, he borrowed a coat from the boss and put it on his body, and then quickly followed the instructions posted on the wall. In front of your own machine. Another thing that pleased him about this Internet cafe was that it provided soft seats like sofas instead of hard benches. ? ? Xi Boyang pressed the power button on the main chassis, then sat down on his seat, waiting for the computer to turn on. The running just now made him slightly out of breath despite his average physical strength, and he was even a little dizzy due to lack of oxygen. ??Although he usually comes here often, he is not really an Internet-addicted teenager. The reason why he came here so eagerly this time was mainly because of a rumor he accidentally saw a few days ago. It is said that Chinas first domestically produced third-generation fighter jet may make its first flight today! In fact, similar rumors have appeared almost every week since a blurry photo of a J-10 being towed by a tractor appeared a few months ago, and it has long been difficult to win people''s trust. ?? But this time, the person who broke the news was an old man who is quite famous in the equipment photography circle and his family lives in Chengdu. At the beginning of the year, when the ugly and distinctive J-7F made its first flight, he was also the first to send out relatively clear pictures. ??That''s right, unlike Xi Boyang, an honest character who only shoots public content, the other party is a wall-crawler. Of course, at this time, there are no management methods for this group of people. Climbing walls to take pictures is still a gray area wandering on the edge. The slogan that has been widely circulated in later generations has not yet appeared. Even if they are discovered, they will be shouted at. A few voices drove him away. ?It wasnt until a few minutes later that the computer was booted that Xi Boyang sat up straight again, opened the lunch box in front of him, and took a few bites of rice into his mouth while connecting to the Internet. ??If placed in the computer room of the school, this kind of operation is enough to make the management teacher''s blood pressure explode, but in Internet cafes, it is not so particular. The one who paid the money is God. Not to mention eating, no one cares about smoking. Damn it, why is the speed so slow today ?Xi Boyang expertly entered the URL of the online chat room, but the subsequent preparation time for reading the message was like a torment for him. It wasnt until about half a minute that the black chat room window interface was finally loaded. He took a brief look and found that there were hundreds of pages of messages compared to yesterday. In this era, due to the unfriendly Internet speed, the design of chat rooms is closer to later forums than to QQ. Or WeChat, you need to turn pages to browse. After all, if there is no limit on the number of messages loaded on each page, then a page will no longer be loaded after a few days... He switched directly to the first message of the day. I found out that the message was sent by the old man whose online name is "Several Degrees of Tenderness". The content is quite simple: Friends, I took the photo Following it is an attachment. In JPEG format. Obviously a picture. ? Its just that this BBS obviously does not have a picture preview function, so it needs to be downloaded. ?However, combined with the other party''s text, it is not difficult to guess the content of this picture. ?Xi Boyang''s hands were shaking a little, so he tried three times in a row before he finally clicked on the correct position. Its another wait that lasts as long as seconds. Almost as soon as the download progress bar was full, he double-clicked to open the picture. TMD, this crappy computer Perhaps because the file size is a bit large, after the image file is opened, the entire image is not displayed directly. Instead, the image is gradually loaded from the top to the bottom according to the standard logic of JPEG. At first, it was a blue, but slightly gray sky. Immediately afterwards, some blurry branches were exposed at the edge of the picture, which seemed to indicate that this picture was taken while hiding behind the trees and facing the sky. Whoops, wheres the plane? ? Xi Boyang''s eyes were fixed on the screen, and the chopsticks in his hands were bent a little because of his subconscious exertion. Finally, a black cone-shaped object appeared in the middle of the screen. ?Xi Boyang, who has photographed many airplanes, knew that it should be the radome. What configuration of aircraft will it be? ?His mood at this time was like a gambler waiting for the lottery draw. The photo of the aircraft a few months ago was almost directly facing the engine. The angle was extremely poor and blurry. It could only be seen that it was a single-engine and single-vertical tail design. Therefore, everyone basically didnt know what the J-10 would look like. Divide into several factions. At the beginning, the most mainstream view was that it would look more like the F16. But some people soon recognized that the aircraft did not have a horizontal tail, so it could not be a traditional design like the F16, and speculated that it might be similar to the Mirage 2000. Considering that China had in-depth contact with Dassault, and even planned to purchase the Mirage 2000 as the main equipment of the air force, this opinion quickly became mainstream. ?Of course, there are also some netizens with good painting skills who have come up with various fanciful designs. Now, its time to reveal the answer. ?Perhaps taking care of Xi Boyang''s mood, the computer directly loaded almost one-third of the photo content. So, the entire plane came into view without any psychological preparation. ifier Obviously, its not the F16. It is true that it is the main wing of a large delta wing, but it is not a Mirage 2000 either. Because in front of the big delta wing, there is a pair of wings with a smaller area. ?This strange appearance made Xi Boyang''s brain almost freeze for a moment. But he soon searched for a related noun from his memory The Swedes have used this design with the main wing at the back and the small wing in the front on the Saab 37 "Thunder" fighter. Im super, duck wing! With an exclamation, the convenient chopsticks in Xi Boyang''s hand were finally overwhelmed and broke into four pieces with a snap. Sorry, I was a bit busy this morning, so I forgot to set the time to send this chapter... (End of this chapter) Chapter 408 Military announces rescue plan Chapter 408 The military announces a rescue plan Compared to traditional aviation powers such as the United States, the Soviet Union (Russia) and France, Sweden is obviously much less well-known in this field. In fact, in this era, the popularity of Saab aircraft in China may not even be as good as that of Saab cars. ??If Xi Boyang had not obtained some English information through various channels, he would not have known that such a seemingly inconspicuous small Nordic country actually had its own military aircraft product system. ??He threw the broken chopsticks aside, looked at the pictures on the screen, and leaned back on the back of the sofa chair. What else is there to eat? This picture is enough to fill my stomach. Its so beautiful... After recalling the strange appearance of the Saab 37, Xi Boyang suddenly felt that although the aircraft in front of him also used a canard + delta wing design, it still looked pleasing to the eye, especially the slender middle section of the fuselage. The "wasp waist" design highlights one''s **** appeal, almost making him, a grown man, unable to control himself. As a photographer who has been photographing aircraft for many years, Xi Boyang has basically seen all the main models of the Chinese Air Force with his own eyes. The attraction that this aircraft brings to him now is no less than the first time he saw the Su-27 that had just arrived in China. ??If the beauty of the latter is more reflected in the power of the heavy fighter, then the beauty of the J-10 in front of you is closer to handsomeness. In terms of analogy, the former is like Zhao Yun, while the latter is like Zhuge Liang. Xi Boyang, who often watches the Three Kingdoms, quickly thought this way. I just dont know how the performance is The unusual design was a mixed blessing for him. Happily, this at least shows that Chinas new aircraft is not simply a copy of an existing mature model, but has its own unique design language. What is worrying is the lack of a reference that can be used as a comparison, and it is really difficult to infer the performance. Innovation is something that creates a good business, but if it is not created well, it may have negative effects. ?But soon, Xi Boyang recalled his experience when he saw the J-8C performing a flight demonstration in Xiangzhou in November last year. ?This gave him some confidence. The third-generation fighter jets are, after all, better than the second-and-a-half-generation fighters. I dont have high requirements, as long as it has better performance than last years J-8C... ?Xi Boyang whispered to himself while minimizing the photo, ready to see what other people on the BBS thought of it. ?Unsurprisingly, most peoples first reaction was to admire this novel design. ??If some traces of the MiG-21 and MiG-23 can still be found in the J-8, then this new aircraft, which should be named the J-10, is at least completely different from the mainstream third-generation fighter jets. No matter what the specific parameters are, this at least means that China has gradually formed an aircraft research and development system with its own characteristics. ?Xi Boyang turned down a few more pages. After the initial cheers and a lot of rainbow farts at the photographer, the topic quickly ended up on the combat effectiveness of the aircraft. The size seems to be similar to that of F16. It should be comparable to F16, right? I feel that in this way, the equipment system of our air force is almost the same as that of the United States. The two third-generation aircraft, which are light and heavy, are also the standard configuration of the air forces of major countries..." The background is a blue sky, and there is no reference object. How did you figure out the size? You are stupid, arent there two models of Thunderbolt 8 hanging under the wings, and there is also a Coach 8 flying next to it, you will know by comparison... Although there is no necessary connection between size and combat effectiveness, the first time I saw this aircraft, my intuition told me that it would not be a problem to compete with the F16..." ?Under this situation, the first thing that most people think of for comparison is of course the U.S. Air Force on the other side of the ocean. It is no secret in this circle that the Su-27 is going to be domestically produced. Therefore, it has long been compared with the F15, which is also a heavy fighter. So the obviously smaller aircraft in front of us will naturally be compared. Compare to F16. After all, most people have not forgotten that less than a year and a half has passed since the two aircraft carrier battle groups showed off their power at home. Since the Su-27 can currently only use Russian-made ground support equipment, the readiness rate and deployment flexibility are greatly affected, as many well-informed people know. ??The J-8C, which debuted at last year''s air show, barely gave people whose confidence had reached rock bottom some hope. But it is still a second-generation improved aircraft after all. Even if the aerodynamics are modified and the avionics are updated, it is still far from a true third-generation fighter. Hence, everyone has been waiting for a truly domestically produced third-generation aircraft for a long time. ?Now that I finally get to see my true appearance, I naturally cant help but want to compare it with others. Looking at the passionate words on the screen, Xi Boyang showed a happy smile. ??This kind of behavior of relying on visual inspection and then playing beast chess in vain is of course meaningless from a military point of view, but no one expected a group of civilians to discuss any military results. What really matters is faith. The only thing we fear is fear itself. Especially in this era when powerful enemies are so powerful that they seem almost invincible. Perhaps the confidence brought by any one thing individually is insignificant, but when things come together, they will form a big river rushing down. Looking at the continuous discussion on the page, he, who had been just staring at the screen without speaking in this chat room, finally couldn''t hold it back. He pulled the keyboard in front of him and participated in the discussion with his unskilled fingering. ??Although the air outlet of the air conditioner was right next to him, the cold air spurting out could not affect the warmth in his heart at all. BBS, although there are certain thresholds for use and is not conducive to promotion, it is precisely because of the threshold that it is equivalent to user screening to a certain extent. Hence, in the first few dozen pages of discussion, the entire atmosphere was relatively normal. Until someone posted another picture in reply. Ive seen airplanes that look almost exactly the same in a book before. Take a look at this. "Um?" ?This reply made Xi Boyang feel shocked. So he spent nearly a long minute downloading and opening the picture. It is indeed an aircraft that looks very similar to the J-10 in the picture just now. After impatiently refreshing the web page a few times, a further explanation finally appeared. A fighter jet jointly developed by the Great Patriotic Republic and the United States. It completed its first flight probably in 1986, the year the No. 10 project was established, but in the end it did not continue to develop because of overlapping positioning with the F16 ?Although this person did not point it out directly, the implication behind his words was very clear, that is, the J-10 that had just made its first flight should be an imitation, or at least a large reference to the Patriot fighter in the picture. Xi Boyang, who was in front of the computer, instinctively felt that something was wrong, but he couldn''t express it clearly. ?Xi Boyang enlarged both photos and compared them carefully. However, the picture taken during the test flight of the J-10 is really blurry, and the angle was from the side taken diagonally upward. Only some basic features can be seen, such as the belly air inlet, canards and enlarged delta wings, and a single engine and single vertical tail. Category. In summary, it seems to be somewhat similar to the plane named "Lion". He scratched his hair in distress. In fact, if you really want to talk about it, it is not shameful to refer to mature foreign models when designing an aircraft. Even before today, everyones expectations for self-developed third-generation aircraft basically did not exceed the similar F16 and Mirage 2000. ?But on the one hand, everyone has been happily discussing the issue of independent design for a long time, and now it is a bit jarring to suddenly intervene in such a thing. ?On the other hand... Since its already a copycat, why not just find a more successful one? Although the atmosphere in the chat room is still relatively harmonious, the direction is obviously different from before. Obviously many people are like him. After seeing the news just now, no matter what they say on the surface, they still feel uncomfortable in their hearts. Sigh It would be nice if there was a more authoritative source ?At the same time, Chang Haonan, who was in Chengdu on the other side, was also feeling troubled. ?Of course, he did not enter that BBS chat room, and even if he did, he would not have any other ideas because of the content in it. Let alone the late 1990s, even more than 20 years later there are still a group of people who are obsessed with finding a father for domestically produced equipment. He had nothing good to say about this group of people. Not everyone can be brought to the same front. ??The problem that troubled him was that the photographer who followed the J8 to take pictures was a second-hand man, and his skills were really not good, even worse than Chang Haonan himself who had experienced the era of smartphones. ??The airplane was originally quite good-looking, but when he photographed it, it was either backlit, stubby, or out of proportion. He picked through several piles of photos, not even one that could be promoted in the internal publication. Let alone realize his longer-term idea of ??establishing a less formal, semi-official propaganda channel. ?Propaganda positions are also positions. If you dont occupy them, they will naturally be occupied by others. Formal channels are subject to policy and identity restrictions, and some matters cannot be reported directly. ?It is entirely possible to consider providing official material support and establishing a new team composed of non-staff personnel and oriented towards publicity effects as the front end. Even if it is impossible to completely suppress the fifth column sponsored by foreign foundations for a while, we should still try to fight. To hone the combat effectiveness of the troops in actual combat. ?However, looking at the strange photos covering the table in front of him, Chang Haonan suddenly had the urge to take pictures. TMD, how can you do good publicity with such an insect? (End of this chapter) Chapter 409 Aircraft exports still need to strictly control publicity Chapter 409: Aircraft exports still need to strictly control publicity ?Ideas are just ideas. The departments involved in the military propaganda matter have almost nothing to do with Chang Haonan''s current influential technology and industrial system. Without any reasonable reasons, it is always difficult to intervene directly. What''s more, he is not a professional in this area. At most, he can only be considered to have experienced the impact of the explosion of information in the self-media era, and has been influenced by it, so he has a little understanding of it. ??If it were really entrusted with such an important task as conducting research and development, I''m afraid it wouldn''t be able to shoulder this responsibility. ?So in the end he could only take a few deep breaths in a row, and then he could barely control his blood pressure, which was almost off the charts. It can only be started from the grassroots level, little by little. Thinking of this, Chang Haonan reluctantly found two pictures with a slightly normal angle and composition from the table and handed them to the publicity officer. Then he put all the remaining photos into an envelope, got up and went upstairs to the floor where Vice President Rong Fei Manager''s office. Since Unit 1001 did not encounter the major setbacks of the previous life after the first engine start test, Comrade Yang Baoshu, the general manager who was already relatively weak at this time, did not continue to work despite his illness. Most of the daily management work was handed over to Luo Hairong, director and deputy general manager of Rongfei Group. ??The latter also majored in aircraft design, but he soon realized that his academic talent was limited, and after graduating from undergraduate degree, he quickly switched to management graduate school. Obviously, this self-awareness is very good, because anyone with a discerning eye can see that if there are no big surprises, he, who is not yet 40 years old, should be able to officially take over Rong Fei soon. Even though it was already dark, not surprisingly, there was still some light in the office. ?The first flight is just one of the countless nodes in the process of an aircraft from project establishment to finalization. Naturally, everything will not be fine after the flight. Or rather, for a considerable number of project participants, the first flight is the real beginning of their work. ?The reason why Chang Haonan looks relatively laid-back is because as a "non-staff" member of Project No. 10, he does not need to participate in a lot of desk work, but Luo Hairong obviously does not. As the deputy general manager who is actually responsible for daily work, most administrative matters are completed by him. ?Inside the room, the latter was concentrating on typing on the computer keyboard and did not notice what was happening outside the door. ?Until Chang Haonan knocked lightly on the door, Luo Hairong, who heard the sound, poked his head out from behind the huge monitor: Mr. Chang? He was stunned for a moment before he recognized the person''s identity. Although the two had met a few times before, they didn''t have much direct communication. Mr. Luo, I just looked at the photos taken by our photographer during the first flight. Its really... hard to describe... ?Chang Haonan placed the envelope in his hand on the top of the CRT monitor and handed it to Luo Hairong across the desk. The latter skillfully pulled out the pile of photos and quickly flipped through a few. The basic requirement for accompanying flight photography is that the details are clear and comprehensive. This way, if any problems are exposed during the flight of the prototype, it will be easier to conduct a post-mortem review. I think these are all in line with the requirements, right? After all, Luo Hairong graduated with a serious major in aircraft design. Even though he has been taking the administrative route since then, he still has some basic knowledge. Thats true from a technical perspective. Chang Haonan replied somewhat helplessly: But just now I and the publicity officer wanted to select a few of them and put them in publications published within the aviation industry, but we couldnt find any that met the requirements. Hearing what he said, Luo Hairong picked up the photos that had been placed aside again and spent a few minutes reading them from beginning to end. Is it an internal publication He touched his chin lightly, looking a little embarrassedhow should I put it, it really didnt look good: Actually, just pick a few pictures at random. According to my experience, neither leaders nor employees will look at them ??Although the aviation industry in this year has begun corporate and group operations, the customers are either other OEMs or simply the People''s Liberation Army, so there is really no need to publicize it in a big way. Times have changed, Mr. Luo, according to our future plan, the current configuration of Unit 01/03 is mainly for export. Chang Haonan lightly patted the monitor in front of him and said to Luo Hairong, who was obviously a little shaken: "In the past, although our aviation industry also sold aircraft, they were mainly cost-effective models, and the buyers were mainly customers who had no other choice. It doesn''t matter whether they publicize it or not, but the J-10 can''t compete with the current international market. The potential customer base of the third-generation fighter jet that competes head-on with the best-selling F16 is very different from before. It is still necessary for the oil tycoons in the Middle East and the Southeast Asian countries that have just become rich to get some good-looking promotional materials. , you see, whether it is Lockheed, Dassault or Sukhoi, they have made a lot of efforts in this area. ?At this time, the Asian financial crisis has not completely erupted. Malaysia and Thailand are still prosperous. Since there are various irreconcilable conflicts within Southeast Asian countries, they are quite active in preparing for war. The latter even bought a light aircraft carrier of over 10,000 tons from the Spanish Bazan Shipbuilding Company. At one time, many Chinese military fans were jealous. When these emerging countries buy equipment, in addition to the normal performance evaluation and bidding process, they also pay special attention to one aspect. I saw it right and bought it. So a good-looking promotional video is very important. ??For Luo Hairong, who is about to be promoted to general manager, he doesn''t care about other things, but at this moment, the export of aviation products is definitely one of the achievements that he needs to pay most attention to. Whats more, Chang Haonan brought up this matter. ??The reason why Luo Hairong was promoted to the position of deputy general manager at the age of 36 is largely because he presided over the signing of an upgrade and export order for hundreds of J-7Fs last year. So if you really want to say it, he can be said to have benefited from Chang Haonan. After all, without the technical support provided by the latter, the J-7F model would probably have to wait a few more years to be finalized. This time is obviously too long for the rapidly changing international situation and the arms market. And if we just sell the J-7MG ?Then you can really only make hard money. Although the J-7F is still a "cost-effective" model according to the other party, the profit margin is frighteningly low in the aviation industry, and it has to be shared equally with more than a dozen other investors. However, the other party paid the advance payment directly in US dollars in cash. Still, the entire Rongfei staff had a good year. At least the kind that can let go of eating meat. ??Luo Hairong knew in his heart that Pakistans economic situation was worse than that of China, so it was impossible for it to be so wealthy. Behind this order was the support of financial sponsors such as Saudi Arabia or the United Arab Emirates. He doesnt care why these Gulf countries are keen to spend money to help others build their armies, but one thing is clear. The oil tycoons in the Middle East are really rich. So when Chang Haonan once again mentioned the export of J-10, it was difficult for him not to be tempted. ThenMr. Chang, what you mean is Our foundation in this area is relatively poor, so well do it bit by bit, but the first step is to at least have a fixed candidate. We cant just pull someone over every time something happens... (End of this chapter) Chapter 410 Students from Maranello Chapter 410 Students from Maranello At the same time Chang Haonan and Luo Hairong were discussing how to sell the aircraft faster. Paris France. ?Professor Fernando Lorenzo, who is in the office of the National Road and Bridge School, is carefully examining a scanned photo that has just been sent to his mailbox on the computer screen. The email came from Julian Cizeron, an old acquaintance of his at Airbus. The other party is currently stationed in China and serves as the European representative at the Flight and Meteorological Safety Laboratory jointly invested by China and the EU. When the two last contacted by phone, Cizeron complained that the cooperation agreement had only been signed a few months ago, and the laboratory was still a mere structure with staff but no space, so they had nothing to do at the moment. We were temporarily arranged to inspect the situation at a factory that once produced the nose parts of Boeing 707 and MD82 aircraft. ?His evaluation at the time was that if the factory was used to produce passenger aircraft in the 1980s, it would be able to pass the test, but it was completely incapable of producing new Airbus aircraft. He wondered if he had chosen the wrong path to come to China. ? As a former Dassault and current Airbus engineer, it is easy to leave Paris and Toulouse, but it is difficult to go back. However, in this email sent a few hours ago, Cizerons attitude took a 180 turn. Because today he saw a "very strange" fighter jet and happened to take a photo of it flying in the air. This is the one Lorenzo is looking at on the screen. In the body of the email, Cizeron described his feelings in a shocking tone. "I noticed that it did not retract the landing gear the whole time, so today should be the first flight of this aircraft. As far as the first flight is concerned, its movements are already quite violent. Not only did it climb at an almost vertical angle at the beginning, but it also climbed at an almost vertical angle. It performed several steep turns and two high-speed rolls, showing strong maneuverability and agility..." The large block of mixed uppercase and lowercase letters, as well as the continuous use of symbols and exclamation letters, make this email unfriendly to readers. If any student dares to write an email like this, he will be called over by Lorenzo and scolded. Not even one meal. In fact, even if it was sent by an old friend, he only read about a quarter of it and didn''t want to continue. ??But after he clicked on the picture in the attachment, Lorenzo was stunned for a moment, and then patiently went back and read all the following content: Although I dont have any reference, my intuition tells me that it should be larger than the Mirage 2000, and although I am not willing to accept it, it should not fall behind even in the agility that the Mirage 2000 is best at, and it also uses An aerodynamic design that is completely different from all currently known models... It may look very similar to some Swedish or Israeli fighter jets, but you should know that they just use canard and delta wing designs. In essence, The pneumatic coupling is completely different..." I watched the video of the flight performance at last years air show, but the aircraft at that time did not have much outstanding aerodynamic appearance. It mainly relied on abundant power, but this one is completely different..." "It''s hard to imagine that this is an aircraft designed by the Chinese. I mean, compared to their manufacturing level, it''s completely unimaginable. These Chinese people either deliberately found a factory with old facilities to deceive and conceal their Real level, or any special abilities or skills in aircraft design..." After reading the whole thought-provoking email, Lorenzo turned his attention to the photo again. It is indeed very clear, there is no sign of candid photography at all, and it was probably a telephoto lens. The Chinese dont seem to be promoting this model in a big way, but they obviously dont want to keep it secret either. Otherwise, it would be impossible for a foreigner to shoot with a camera with a long lens in such a big way. ?Of course, due to the angle problem, it is still impossible to see the entire plane from this photo alone. ?However, Cizerons judgment is correct. The Chinese do have some special skills in aircraft design After the agreement was signed at the beginning of the year, JAA obtained the ice simulation and prediction software as agreed. Although it is only a limited-function version, during the trial process at several airports, it still helped them predict many risks that would cause flight delays in advance, saving airport operators and airlines hundreds of dollars in a few months. million euros in associated costs. Otherwise there would be no Flight and Meteorological Safety Laboratory. ?Furthermore, the black technology that the other party can come up with seems to be far more than that... ?Thinking of this, Lorenzo turned his attention to another email in his mailbox. That was an official reply email sent by a company called "Torch". The content is that the National Road and Bridge School has passed the trial review, and the installation files will be shipped by air express after the relevant user manuals and legal documents are translated. Although he has not personally experienced this software, he can already get a glimpse of its advanced nature from the preliminary documentation sent by the other party. As a core member of Dassault Software Department, Lorenzo is extremely sensitive in the field of numerical simulation. He almost judged from the promotional materials that the developer of this software should also be an aircraft designer, not a programmer, because the other party had an extremely accurate grasp of the pain points faced in actual engineering projects, and the solutions described were completely consistent. logic. ?In addition, this TORCMultiphysics is not just a design simulation software. Its calculation method can play a role in manufacturing and even new material development and other fields as long as its calculation method is slightly expanded. As to why this was not done Maybe its because of the lack of manpower, or maybe its because we havent considered this layer yet Lorenzo obviously never imagined that in addition to the seemingly top-level professional version (ver.professional), this software actually has a professional enhanced version (ver.professionalplus). ?But even for the former, the functions mentioned were enough to make him feel crazy. The promotional material states that it can increase the comprehensive calculation efficiency of numerical simulation by more than 5 times. ??Lorenzo feels that even if this number is a bit watery, if it can be increased by 3-4 times, it is already ahead of the times. ? And since the Chinese can develop such incredible software, it doesnt seem surprising to design a brand new fighter jet with relatively complex aerodynamic calculations. ??A sudden ringing of the phone interrupted Lorenzo''s thoughts. is his student assistant. Professor, there are two gentlemen looking for you outside, saying that they are coming from Italy. They have not made an appointment, but you will definitely meet them. Uhwell, thats right. Lorenzo rubbed his forehead and replied: Let them in, one of them is an old friend of mine. A few minutes later, a tall, thin and expressionless man who was completely opposite to the other - a stocky man with a kind face walked in from the door one after another. Fernanio, long time no see! The former came over immediately after entering the door and gave Lorenzo a warm hug. Come on, Rory, who left me without saying goodbye last time and left me in the restaurant to pay? Lorenzo is not forgiving with his words, but judging from his expression, he must have a good relationship with him. Let me introduce you, this is... ??The man named Rory stepped aside and wanted to introduce another person following him. But he was interrupted before he finished speaking: Dont be kidding, of course I know Mr. Jean Todt, the former team leader of Peugeot and the national hero of France, but he may soon be ruined. Speaking, he took two steps forward and shook hands with the other party. In 1993, Jean Todt led the Peugeot team to win the top three in the 24 Hours of Le Mans. Although it is difficult to be called a household name, it is difficult for French people who pay a little attention to racing not to know this name. ?However, in the second year, because Peugeot rejected his proposal to enter F1, Todt switched to Ferrari, the old F1 team that was already declining. However, in the following years, although the team barely improved to a certain extent, it could still only hover between third and second. ?This is why there is talk of imminent ruin. So, in order to prevent my reputation from being ruined, Mr. Byrne brought me to you, Professor Lorenzo. He said that you are one of the best people in the world in the field of computational fluid dynamics. Todd, who was teased, was not angry at all, but replied smoothly. After all, this is not the first year that the media has written similar headlines. "Come on, I''m not interested in your racing career. Now I just want to teach in school." ?Lorenzo waved his hand and refused almost without thinking. In fact, it was certainly not that he was not interested in racing, otherwise he would not have recognized the unattractive Todd at a glance, but he had already experienced a failed office struggle at Dassault and was already aware of the chaos within the Italian red team. After hearing about it, I wont go in person just because of some interest. After turning interest into work, interest often disappears. ??Besides, for him who has already been engaged in aircraft design, although there is speed and passion in the racing field, there is really not much. Fernanio, Mr. Todt has recruited the entire Benetton teams championship-winning team, which can completely isolate the influence from the Fiat Group headquarters. Now there is only one person left who is responsible for CFD calculations..." Rory Byrne wanted to give his old friend another piece of advice. ?However, Lorenzos attitude was decisive: I dont have that much energy to travel around the world with you anymore. He waved his hand, sat back in his office chair, and then happened to see the emails on the screen out of the corner of his eye. ?This made Lorenzo hesitate for a moment, and then changed the subject: But Rory, I can give you a piece of advice. "What?" You can try to learn this thing. ??Lorenzo, with a tone that was 70% serious and 30% joking, turned the monitor in the direction of Byrne beside him: If you believe my vision, I dare say that the efficiency of this thing is at least five years ahead of similar competing products. TORCHMultiphysicsIve never heard of it before? Yes, although this is just a promotional page, I took a look and the content inside is still very reliable. LaChineor is it software developed by a Chinese company? ??Byrne had an expression on his face that said, "Are you kidding me?" Yes, no joke, I am even considering bringing two doctors over to communicate with them. ?Hearing what Lorenzo said, Byrne turned his head and looked at Todd next to him. The latter nodded. Sodo you mind if one more person goes with you? (End of this chapter) Chapter 411 Sukhoi wants to reversely introduce equipment from our army? (Brother Chapter 411 Sukhoi wants to reversely introduce our military equipment? (Brothers, please give me a monthly ticket) While most of the aviation industry system, foreign media and intelligence agencies are focusing on the first flight of the J-10 prototype, various factories in the aviation power field that have just unified their thoughts and routes at the aviation engine industry conference are silent. A mobilization began. The scale and scope are unprecedented. ??Although there is no direct connection between these two things, objectively speaking, the effect of repairing the plank road in the open and concealing the old warehouse in the dark has been achieved. It was not until much later that people widely realized how important August 1997 was to Chinas aerospace development industry. Shengjing, Beiling Airport. Mr. Luo, the last time our 112 Factory was so lively was probably in 1956? Liu Gaozhuo, the commander-in-chief of Project 11, stood on the balcony of a three-and-a-half-story building, smoking a cigarette and looking at an IL-76 transport plane on the runway that had just landed and was taxiing to the tarmac. He looked at an older man next to him. The old man joked. Luo Shida, who was next to him, took off his hat and lightly scratched his head: Absolutely, but the Soviets didnt have such a big plane back then, so they used trucks to transport the Type 56 materials. At this time, He Ming, deputy chief engineer of Factory 112, also appeared under the stairs, taking over the conversation as he walked up: What was carried in the plane this time was not data, Mr. Luo, it should be technicians sent from the Haojing 430 Factory. Luo Shida is China''s first-generation aircraft manufacturing technology expert. He was the former chief engineer and deputy director of Factory 112. He has participated in the repair, imitation, improvement and modification, and self-design and development of 15 models of aircraft from J-5 to J-8. . Originally, he had retired in 1990, but Project No. 11 involved a huge amount of Soviet-standard Russian technical documents and drawings. Not to mention improving on them, the translation and standard conversion work alone was unimaginably complicated, and Under the dual pressure of the national security situation and the contract completion time, the construction schedule was extremely tight. The biggest trouble is that after the 1980s, the engineers and designers who entered the 112th Factory and the 601st Factory at the grassroots level almost all learned English and knew nothing about Russian, and the experts sent by Sukhoi naturally did not understand Chinese. As for translate Translators do not understand technology. So at the beginning, only senior technical and managerial personnel such as Liu Gaozhuo and He Ming, who had experienced the Russian era, could only undertake these tasks that were not very technical in nature. ?But after all, they have no skills at all. Doing everything by themselves can only solve temporary emergencies, but it is by no means a long-term solution. In the end, we had no choice but to invite a large number of seniors who had retired and retired to take charge of tasks such as data translation, standard transcription, and communication with Russian personnel. For this purpose, a Project 11 Advisory Group has been specially established. Luo Shida is the leader of this advisory group. Fortunately, Factory 112 is still relatively wealthy after taking the order from the Persians. Otherwise, there would suddenly be so many non-staff personnel, and even supply would be a problem. ??The older generation is more enlightened, but we cant let people bring their own dry food to work... Now after more than half a year of work, the first two aircraft with parts provided by the Komsomolsk Aircraft Manufacturing Factory have basically completed the final assembly, and the processing of relevant documents has also entered the final stage. However, Luo Shida himself seems to have found the joy of work again. , insisting on staying in the Project 11 project team. ?While the three of them were talking, the door of the IL-76 slowly opened, and what came out was indeed a group of people carrying large and small bags of luggage. In order to allow the IL-76, which has a warehouse environment that is very Soviet-style (low emotional intelligence means poor comfort), to transport passengers normally (rather than trained airborne troops), Ilyushin specially developed a set of passenger transport modules. Up to three passengers can be crammed into the aircraft, achieving a level of comfort close to that of ordinary passenger aircraft in the 1980s when passengers and cargo are mixed. ?In the original timeline, China did not introduce this useless equipment, but this time it was given as a supplement by Ilyushin Company. It turned out that sometimes it is really useful. I remember, doesnt Factory 430 produce turbojet 8? Doesnt it also have business dealings with us? After all, Luo Shida has been away from his job for a long time. Now that he is back, he basically only focuses on the business at hand. It is normal for him to not understand what is happening in the aerospace power field next door. Whats more, the aviation industry conference was sandwiched between the nationwide flood and the first flight of the J-10, so it really didnt attract much attention in comparison. No, they are going to Liming Factory, but because there are too many people, if they all go to Taoxian Airport, there will be too much movement, so they use our side to land. ?He Ming explained: "Our Comrade Haonan did a big thing last month. He is preparing to transfer the turbofan 10 from preliminary research to formal development. He hopes to equip it on the J-10 and J-11 in finalized service status. Looking at the current situation, the plan should be It has been approved, and technical personnel engaged in aviation development across the country are concentrating on our Shengjing these days." ? ? ? "Comrade Haonan... I remember Lu Songshan mentioned it to me before..." Luo Shida tapped his temple lightly when he heard the name: Is your name Chang Haonan? He Ming next to him nodded and took two steps forward to the window to look out: "Yes, Senior Lu said that we signed a very beneficial agreement with the European Aviation Administration in Haojing at the beginning of this year. Comrade Haonan played a very important role in it. There is also the 83rd Project, which can be used in The design was finalized at the beginning of this year, and he also deserves some credit. Thats really awesome... However, after thinking about it for a while, Luo Shida became even more confused: From what youre saying, he should be engaged in aircraft design. Why is he suddenly taking the lead in researching aero-engines? ?He Ming and Liu Gaozhuo looked at each other before replying: "Comrade Haonan is not only engaged in aircraft design. As far as I know, he has participated in or presided over the research and development of a new electronic warfare system at the J-8C, Turbojet 14 and Electronic 14 Institute. Now we are on the 11th Project No. 1 is preparing to replace the original L005S electronic warfare pod with this new domestic model. " "oh-" Luo Shida was first shocked after hearing this answer, and then gradually turned into a sudden realization: I heard Sotnikov from Sukhoi say that this is what he wants us to share technology with? Speaking of this matter, Liu Gaozhuo suddenly burst into hearty laughter: "Yes, it is this thing. Sotnikov advocated that according to the agreement signed by both of us at that time, both parties should share relevant technical results during the process of Project 11, but we said that this pod is a general equipment of the Chinese Air Force. It was originally developed for the JH-7 aircraft. For the J-11, it is only used as a weapon system rather than part of the airborne equipment, and it is definitely not within the scope of technology sharing. " Later we also showed photos of other types of aircraft with that pod, and he stopped talking. Being able to achieve reverse overtaking in the process of introducing other people''s aircraft is naturally very encouraging, so the entire stairwell was filled with happy air for a while. After calming down, Liu Gaozhuocai continued to add: "In fact, according to the opinions of the 14th Institute of Electronics and Comrade Chang Haonan himself, this technology cannot be shared, but it certainly cannot be let them take it away for nothing. They must exchange it with us for something equivalent. Finally, we will internally Just pay a technology transfer fee to the electronics group. Now it depends on Russias attitude towards this matter. After all, the major military industrial groups in China are still unified under the leadership of ZY, so they have much more freedom in the process of operating this "technology-for-technology" program. In extreme cases, it is even possible to exchange the technology developed by the Electronics Research Institute for much-needed technology from the Nuclear Industry Corporation through the hands of the Aviation Industry Corporation. Its not for nothing anyway, just carry it over internally at the end. Then you have to come up with something substantial. Luo Shida, who only then learned the whole story, was so happy that he couldnt open his mouth from ear to ear: Lao Maozi in turn introduced technology from us. This is something I havent heard of for more than 40 years... In more than forty years, since 1840, Western developed countries have introduced our Chinese technology only a handful of times. As a result, it has happened twice in the past seven months this year. After He Ming finished speaking, he added in his mind: "And they are all related to Chang Haonan." At this time, Liu Gaozhuo next to him took a last puff of cigarette, then put out the cigarette **** in his hand and patted the dust on his hand: Lets go, the No. 10 project in Chengdu has already made its first flight, and our final assembly workshop must also speed up the progress... (End of this chapter) Chapter 413 Buy a house for your parents Chapter 413 Buying a House for Parents Come and see how it feels when I put it on? When Chang Jiayao couldn''t wait to tie the belt around her waist and came out of the bedroom again, and excitedly wanted to show off her figure to her family, she saw such a picture of three people staring at each other with big eyes. Weird scene. ?This made her confused for a moment, so she had to hold back the second half of the question. Brother? "dad?" "mom?" ?She tentatively called three people respectively. Ahem In the end, it was Chang Haonan who reacted first and spoke out what he had been thinking: The conditions of this Tongzilou are a bit poor after all. It doesnt even have a separate kitchen and toilet. My mother has been cooking on the balcony with a small gas stove. The hygiene and safety aspects are not good..." In fact, no matter how bad the conditions in this place are now, it is not that bad. After all, in the previous life, the family lived in such a building until the new century. At the end of the 1990s, Tongzilou was far from the level of urban legend it would become later. After all, it is a family home. The residents basically live in the same unit and the neighbors are all familiar with each other. Until about 2003, the employees of the original units moved into new residential areas on a large scale, so they rented them out at low prices to many idle people in society, and even premeditated criminals. As a result, the original Tongzi Building area gradually formed a similar complex. In areas like shantytowns or slums, the security situation has plummeted. This situation lasted for several years and then gradually disappeared with subsequent demolition and resettlement. So when Chang Haonan first proposed to buy a new house, the first reaction of Chang Yuanchao and Zhou Li was that it was unnecessary, both from a rational and emotional perspective. You havent been here for so many years. Besides, Jia Yao has gone to school in two months. Your mother and I probably cant cook a few times a week. Chang Yuanchao gently touched his already somewhat white temples and replied: This place is a bit old now, but the neighbors are all familiar with it. We may not be used to the sudden change of residence to a new place. "Yes, yes, your father and I will retire after working for more than ten years. By then, we may move to the place where Xin or Jiayao works and help you take care of your children. How can we buy something locally?" New house Zhou Lizhai also nodded in agreement and said: You should eat the noodles first, it will be cooked later. ?Chang Haonan picked up a piece of noodles with chopsticks and couldn''t help but smile bitterly. For people of their parents'' generation, it is indeed difficult to imagine what kind of earth-shaking changes China will undergo in the next ten years. Let alone more than ten years later, in five or six years, most of the residents in this tube building will have moved out. Neighborhood relations are indeed important, but in this county where the total population is less than one community in Beijing, there is no sense of distance no matter where you move. We are just moving, and we wont move too far away. Its not like we wont live locally anymore. We can still keep in touch with these old neighbors. ?He put a few pickles into a bowl, ate them in one bite with the noodles, and then continued to persuade: I just asked briefly on the way from the airport. There is a new community that has just been built two or three kilometers away. The transportation is very convenient, and it is even closer to your workplace. "Besides, even if Jia Yao and I go to school, we always have to go home during holidays and festivals. It''s really hard to live like this now, so putting a bed in the living room is not an option, right?" Chang Yuanchao obviously began to waver. Obviously, the effect of the second paragraph is quite obvious. As parents, its generally okay to make do with things on your own, but they will pay more attention to their childrens issues. "Um" But Zhou Li is still a little hesitant: "It will cost a lot of money. Xiaonan, you are already 22 this year. If you have a family in the past few years, why don''t you also have to buy a new house? That is still in the capital. Even if you have some money now, you should still keep it. She is indeed thinking long term. The problem is, its too long-term. ?In her previous life, she saved money for Chang Haonan''s wife until she retired, but it was no use... ?Although there is no guarantee that Chang Haonan will repeat the emotional experience of his previous life in this life, he is still considered to be of a small status now, and his parents should not need to worry about it anymore. "You don''t have to worry about things in the capital. We...well, the research institute where I am interning has already given me an apartment as a dormitory. It will be officially given to me after I graduate. Besides, we will also receive state subsidies and subsidies for doctoral studies. Project subsidy, there will definitely be no shortage of money..." ?Chang Haonans brain was spinning rapidly, and he came up with clever names for his income. At present, his largest source of recurring income is undoubtedly the salary from Torch Company. The rest are subsidies and bonuses in some projects. Mainly horizontal. For large projects such as Turbofan 10 and Project 10, the restrictions on the use of funds are often quite strict. In addition, the larger the scale of the project, the more people will be involved in it. As for personnel subsidies, this is definitely a problem. If you have a share, even if there is a graded distribution system, the gap will not be too obvious, so what finally falls into the hands of Chang Haonan can only be regarded as drizzle. But Chang Haonan is not ready to tell his family about the Torch Company just yet. At least I am not planning to tell Chang Yuanchao and Zhou Li. Judging from the experience of the previous life, neither of these two people are capable of hiding things in their hearts. Although they will not deliberately publicize it after knowing it, it may be difficult to keep their mouths shut for a long time. On the contrary, Chang Jiayao, although she seems careless and heartless now, is actually quite thoughtful. In recent years, there have been major layoffs. If people around me really knew about this, just think about it, how many relatives, friends and colleagues would come to me to ask for help in arranging jobs. Chang Haonan''s plan for Torch Company was originally to be a small but sophisticated core technology enterprise, so it was naturally impossible for him to take the lead and stuff some idle people into it. But it is easy for him to refuse, but it is difficult for Chang Yuanchao and Zhou Li to refuse. ??Maybe it will destroy the social circle of the two of them. So it is better to contain the problem at the source. How much subsidy can you get for studying Chang Yuanchao was a little disapproving at first, but then he suddenly realized: No, you said you want to buy a house in our county. How much money do you have now? ?Chang Haonan hesitated for a moment and showed three fingers. Three thousand... Then maybe adding a little more to the money we have saved over the years will be almost the same..." Obviously Lao Chang has not realized the seriousness of the matter. Dad, if I only had three thousand yuan, how could I possibly mention buying a house to you ?Chang Haonan''s head was full of black lines, interrupting Chang Yuanchao''s progress in settling accounts. ??He did not dare to say that the handmade Sichuan brocade dress that Chang Jiayao is currently wearing would probably cost more than half of that amount if it were commercially available. Thirtythirty thousand? After a second of silence, Zhou Li asked tentatively with a trembling voice. In 1997, in first-tier cities, housing prices in good locations ranged from a few thousand to tens of thousands. In places like Beijing, Shanghai or Pengcheng, 30,000 yuan was not a small amount, but it was still high. Definitely not a huge sum of money. ?However, in an inconspicuous small northeastern county, the house price in the central area is about 300 yuan per square meter. Even for the largest apartment, a room costs just over 30,000 yuan. ?It is not impossible to buy a house for more than 10,000 yuan if the location or area is slightly downgraded. ?At this time, there is no overwhelming mobile network and self-media to tell you what the life of rich people in big cities is like. For the couple who have lived locally all their lives, this county, or at most Liucheng City, is basically their entire world. ?The incomes of Chang Yuanchao and Zhou Li are not low in the local area. They add up to several hundred yuan per month. Thirty thousand yuan is not enough to break the upper limit of imagination. But they were quite sure that just a year ago, their son still had to take care of their living expenses. In other words, Chang Haonan saved the money in less than a year. This is a bit scary. Uhright. Looking at his mother''s reaction, Chang Haonan didn''t dare to say that he actually had almost 300,000 yuan in hand. On the other hand, Chang Jiayao, who was next to him, saw some clues from Chang Haonan''s expression. ??And she can also feel that the clothes on her body are definitely worth a lot of money. Not to mention anything else, even though there was no way to tailor the dress and I just asked about the basic measurements such as height and measurements over the phone, this dress still fit the figure almost perfectly. ?She even felt that after wearing this set of clothes, it would be a sin for her to be a little fatter. In short, after a comprehensive judgment, I am afraid that these three fingers mean more than thirty thousand. "Mom, since my brother is not short of money, let him buy it. Didn''t you also say this winter that the heating pipes in this old house are aging and the effect is getting worse? How can it be better if we move to a new house? a little." ?So she said and walked to Zhou Li''s side to help persuade her. You say it lightly, but its not your money. The latter raised his hand and knocked Chang Jiayao on the head: Our cheaper building costs about ten thousand yuan, which is enough for your father and I to go without food or water for three to four years ?Even so, she did not refuse again. At the end of the day, what parent really doesnt want things bought for their children. Its nothing more than worrying about money. There will be more later (End of this chapter) Chapter 414 Chief Designer Chang takes office Chapter 414 Chief Designer Chang takes office Chang Haonan couldn''t stay at home for too long this time, so without further ado, he took his family to the community he had seen on the road early the next morning. The reason why it is directly determined to be here is also the experience of the previous life. When this community was built, pre-sale of commercial housing and shared areas had not yet been implemented, so the quality was actually better than that of off-plan communities that started construction in the past two years. And as long as you like the existing house, you can trade it on the spot. ??If everything goes well, he can also help move the house. At first, Chang Yuanchao and Zhou Li set their sights on a small apartment of less than 70 square meters. Mainly because it is relatively cheap, only about 20,000. But it still has two bedrooms and one living room. In the end, I couldn''t resist the persuasion of Chang Haonan and Chang Jiayao, so I changed to a slightly larger one. At least one more bedroom. Otherwise, the family had two bedrooms and one living room before moving, and it still has two bedrooms and one living room after moving. Wouldnt this move be in vain? However, after all, the family had lived in the old Tongzi Building for twenty years, and the piles of all kinds of debris were so vast that Chang Haonan didn''t have time to move everything. He only had time to move some necessities, and it was time to move them over again. Time to leave. Shengjing contacted him through the local Science and Industry Office and said that the R&D personnel required for the Turbofan 10 project have basically arrived. More importantly, the official appointment of Chang Haonan from his superiors has also been issued. ?Thus, three days later, Chang Haonan appeared in No. 606 again after about half a year. It''s just that this time, his status is completely different. ?Although Chang Haonan also played an important role in the Turbojet 14, he was still considered a non-staff member of the project and participated in the core engine improvement work as a consultant. Although in the end his advisory opinions were accepted and a top-level turbojet engine such as the Turbojet 14 was finally born, at the official record level, Chang Haonan''s name can still only appear on the third page of "Participation" R&D personnel". The people who received Chang Haonan in Institute 606 were Yan Zhongcheng, an old acquaintance, and Hai Yide, the director of Institute 606, who was with him. Mr. Yan, director of the sea. After getting off the car, Chang Haonan immediately stepped forward and shook hands with the two of them. Haiyide served as deputy administrative commander and leader of the major technical decision-making leadership group in the Kunlun engine project. In fact, he was basically equivalent to the chief engineer. However, the Kunlun project started too early, and the chief engineer and general manager had not been determined at that time. The system of division, and it was unrealistic to airborne the chief engineer when the project was already halfway through, so he could only be given this title. However, in the development process of Kunlun engine, Yan Zhongcheng was undoubtedly the one who occupied the real dominant position. Therefore, Chang Haonan did not have much contact with Director Haiyide before, and only met at a few meetings. . Mr. Chang, now we are considered colleagues. Calling me Director Hai, doesnt it seem a bit too unfamiliar? Chang Haonan didn''t react much when he heard this statement. ?Due to the complexity of his identity, it is difficult to say whether his file is listed in Beijing Hang University or ZY Enterprise Working Committee, but it should not be in 606 Institute. It seems a bit far-fetched to have to say what his colleagues said. "The superiors have decided to appoint Mr. Hai as the chief engineer and administrative person in charge of the Taihang engine project, and you as the chief designer and technical person in charge of the Taihang engine project. So, for at least the next few years, the two of you will Both young and old need to be partners. Yan Zhongcheng explained with a smile beside him. "I see." Chang Haonan felt something in his heart: ??The position of chief designer is relatively simple. Although I am very young, I have already demonstrated high enough abilities, so it is not unreasonable to hold the position as an exception. But the chief engineer involves more administrative functions. More importantly, if something goes wrong with the project, the chief engineer needs to take the overall responsibility (take the blame), so it must be someone with a certain administrative level and experience and qualifications. Just take responsibility. Hairyide, who is the director of the 606 Institute (at the department and bureau level) and has already undertaken similar tasks in the Kunlun engine project, is naturally the most suitable person. Judging from this, the other party may have held the same position in his previous life, but the chief engineer and chief engineer of Turbofan 10 changed at least five or six times in that timeline. He must not be able to remember each of them. name. "Then I ask Mr. Hai to take more care of me at work. After all, I am still young and inexperienced in many things. If I do something inappropriate, I still need Mr. Hai''s guidance. Also, you Just call me by my name." ? Judging from the limited previous contacts, Hai Yide is not a leader who likes to interfere randomly, so Chang Haonan also keeps his attitude low. Comrade Haonan, be humble, be humble, dont worry, I am mainly responsible for providing you with all the support you need, and I will never interfere in technical issues at will! In fact, Hai Yide is different from Liang Zhuoping or Luo Hairong. He is also a technician in the field of aviation development, but he really did not come up through the administrative route. In the early stages of the development of Kunlun engine models, he was responsible for overcoming many key technologies. However, on the one hand, after taking up the position of director, his energy was inevitably distracted by administrative work. On the other hand, after the improvement work of the Turbojet 14 last year, he has also realized that Chang Haonan''s technical capabilities are indeed beyond his own. too much. More importantly, Haiyide knew in his heart that as the administrative person in charge, as long as the Turbofan 10 project could be successfully finalized, his contribution would be indispensable. There was no need to argue with such a rising star over some trivial matter of power distribution. Go against the rising star. What a loss. ?The appointment document of Chang Haonans chief designer was directly signed by the names of two big leaders. To say someone elses background is great is a rhetorical technique, but to say someone elses background is great is just a normal description. ??If two people really fight, you can think of who will be kicked out in the end with your toes. By the way, Xiao Chang, there is one more thing. After Chang Haonan and Hai Yide completed their usual polite exchanges, Yan Zhongcheng put one hand on the table and suddenly interjected: After getting the new software from your Torch Company, my turbojet 14 aeroderivative project has reached its most critical stage, and I need someone from your Taihang side to help. "who?" Chang Haonan felt a little strange when he first heard this request, but after all, the relationship between the two is quite good, and now the Taihang project has a big business, so there is no one left behind. Zhang En and Mr. Zhang, how about asking him to come to my place to do the air traffic control with me? Yan Zhongcheng tapped his hand rhythmically on the table, seemingly casually naming the person he wanted. "sure." ?Chang Haonan was stunned at first, and then immediately understood what the other party meant: You have to worry about it... Zhang Enhe has been the chief designer of the Taihang Project for the past few years. He is 58 years old this year and is actually about to retire. Yan Zhongcheng sent such a person over, naturally not because he really lacked experienced manpower, but to eliminate possible troubles for Chang Haonan. Even though the other party was very upright in the matter of replacing the chief engineer, it would always seem very strange if the former chief engineer continued to stay in the project team. Even if Zhang Enhe is not awkward, there is no guarantee that Chang Haonan will not be. ??It is even more unnecessary if there is any unpleasantness due to poor communication. So it is better to nip the risk in the bud and let Mr. Zhang directly go to Aircraft to take care of his retirement. Anyway, as the chief engineer of the Turbofan 10 for nearly ten years, his name has been difficult to separate from this model. After confirming this last thing, Hayide excitedly waved his fist in the air: "Comrade Haonan, now that all the personnel needed for research and development work have arrived, we will hold a technical meeting for the key members of the turbofan 10 project team tomorrow morning, no, this afternoon, and inform everyone of your official appointment! " (End of this chapter) Chapter 415 Aviation development, starting from the core aircraft Chapter 415 Aviation development, starting from the core machine ?While walking and talking, the three people had arrived at the office of Director Haiyide. No, no, no, Mr. Hai, there is no need to be in such a hurry. Looking at Hai Yide who was almost impatient, Chang Haonan stopped his plan to hold the meeting in advance: "After all, it is a national collaboration. The technical meeting of all key members is too large. We can make more preparations. First, let the comrades from other units familiarize themselves with the environment and working mode of 606. This will also make it easier to carry out follow-up work and hone the The sword never cuts wood." After hearing this, Haiyide immediately stopped turning around, and then his eyes lit up: Mr. Changs intention is... to let comrades from other brother units also..." And he could hear the implication of Chang Haonan''s words. ?That is, the other party is prepared to take this opportunity to re-integrate the entire Chinese aviation power industry in a bottom-up manner. The first step is naturally some details. Chang Haonan nodded: There is no way. Since we want to participate in the same project, we must first unify the working methods. Since the Taihang project is led by the 606 Institute and the 410 Factory, the relevant practices must naturally be implemented in accordance with our existing methods. The industry where 606 is located is generally referred to as the National Development and Research Institute for short. There is no need to add the word Shengjing at all, because in the earliest aviation industry planning, this place was actually the only aero-engine research institute in the country. ?Although a series of events such as the third-line project later caused aerospace development plants to bloom everywhere, the status of 606 has never been shaken. ?However, we have not been shaken. Over the past thirty or forty years, we have also had quite a huge difference in some specific business methods - ??Although China''s aviation industry has gradually begun to form its own set of standardization systems with the release and implementation of a series of new national military standard documents, standards are only the most basic thing after all. Under the same set of national standards, the habits and styles formed by design and manufacturing units that have worked independently for a long time will still be very different. The most typical example is Sukhoi and MiG, both of the Soviet (Russian) design bureaus. At the beginning of Project 11, Factory 601 and Factory 112, which were already accustomed to MiG aircraft, found that when faced with the design and production data of the Su-27, they had differences in drawing numbers, annotations, and the abbreviations of some professional terms. The abbreviations are all different, and even the old comrades who were re-employed took a while to get used to it again. Fortunately, today''s Sukhoi''s status in the cooperation is not that high, so the completeness and accuracy of the technical documents provided are much improved compared to the previous life, which did not delay the project progress too much. Across the ocean, Boeing, which has just successfully acquired McDonnell Douglas, is facing similar troubles. At least in the aviation industry, China is not a country with deep pockets and strong technological foundations like the United States and the Soviet Union, so it still has to prioritize concentrating its efforts, unifying work methods, and reducing internal friction. Okay, then I will ask the comrades in the institute to familiarize them with the situation in the past two days. As the director of Institute 606, Haiyide was naturally very excited to hear this kind of thing. Although this would not bring him any direct benefits, at least it would definitely make him look good. Theres no rush for this, theres one more thing. ?Chang Haonan quickly stopped the other party. Firstly, such a large project requires half a day, and secondly, he wanted to determine first what stage the turbofan 10 in 1997 was in: It has been more than ten years since the establishment of the Turbofan 10 project. In addition to pre-project research, there should also be some basic design information. Before officially starting work, I want to see what the current situation is. Since you want to grasp the overall design plan, you must be aware of it. In the last life, because the entire project was pushed back many times, the records of the research and development work of the Turbofan 10, especially before 2005, were quite confusing. Chang Haonan was not an expert who specialized in the history of the development of the aviation industry. As a result, Even if he reopened it, he still couldn''t find any useful information from his memory. Having no choice but to look up first-hand information. Is this... Hearing Chang Haonans request, Hai Yide hesitated. ?The Taihang project is indeed quite special. It has been in a state of being approved but not yet approved for a long time. Logically speaking, the pre-research work should be completed before the formal project is established, but because there is almost no technical foundation, 80% of the time for this already-established project is actually spent on pre-research. In the remaining 20% ??of the time, I did a few hands-on designs, but the results were naturally not very optimistic. ?Hayide has been responsible for the management of Kunlun engine before, so it is normal for him to be unfamiliar with this aspect. I have to call Comrade Liu Yongquan over. He is the deputy chief designer of the Taihang project. He has presided over the completion of several preliminary design plans so far. Haiyide said and picked up the phone from the table next to him. After a brief communication, he put down the receiver and looked at Chang Haonan again: Lets go to the conference room next to it. Its still not very convenient here. "I won''t go with you. There are still a lot of things to do in the aeroderivative gas turbine project. The 701 Institute has been a little anxious during this period. It is said that the navy suddenly put forward some requirements for the anti-submarine performance of the frigate, so Now the gas turbine solution has a high probability of winning, but we need to provide a prototype with full performance as soon as possible. Yan Zhongcheng said as he put on the coat he had just taken off and prepared to leave. Mr. Yan, dont you want to participate in the Taihang project? ?Hayide asked half-jokingly while sorting the files on the desktop. "If it weren''t for Comrade Xiao Chang, I might really be able to use my remaining energy." Yan Zhongcheng, who had already walked to the door, waved his hand: Now that we have such a capable next generation, it just so happens that my old bones are a bit overwhelmed, so Id better work on some projects that are not so intense... After saying that, he quickly disappeared around the corner outside the door. "Alas...that''s what Lao Yan said, but their gas turbine design room doesn''t keep the lights on all day and all night..." Hai Yide shook his head, and then handed an envelope and two separate pieces of paper to Chang Haonan: Your official appointment document is only the original but we have to keep it in our office. I made an extra copy for you. Take it as a souvenir. I estimate that in the foreseeable future, there will be no model chief engineer younger than you Soon, Liu Yongquan and several other key members responsible for subsystem design in the Taihang engine project came to the adjacent conference room. Compared with the paper files of the previous Turbojet 14 and J-8C that counted boxes, the Turbofan 10 is much lighter in appearance due to its slow progress and the fact that a lot of technical information has been digitized. Liu Yongquan quickly opened the laptop he carried with him and spent more than ten minutes opening a series of project files. They are all design drawings. But basically all are cross-sectional drawings drawn using CAD. Only the front fan and the rearmost nozzle part have completed 3D modeling, but they are still relatively rough. After all, the entire Taihang project team did not have many manpower at all before, which is normal. Im not afraid of your ridicule, Mr. Chang. We have indeed produced several preliminary design plans before, but the degree of completion was relatively poor. This is the one we started recently and has the best progress. Liu Yongquan said as he pushed the computer in front of Chang Haonan with some embarrassment: The earlier ones, we couldnt design them ourselves later on, they were completely useless. This was achieved after we stole some things from you before and learned from many mature foreign models. It doesnt matter, Im just taking a look. Chang Haonan is not surprised by this situation. After all, even the Turbojet 14 had many traces of patchwork before his overhaul, let alone the Turbofan 10. And he could see what the prototype of this version of the design was almost at a glance. 3-stage fan, 9-stage compressor, 1-stage high-pressure turbine, two-stage low-pressure turbine Is this derived from the GE9 core engine? When he saw this design, Chang Haonan already basically understood the current stage of the turbofan 10 Although it adopts a more advanced design in some details due to the butterfly effect it brings, this version is generally a replica of the F110 engine. It is one of the two power sources of F15 and F16. Liu Yongquan and several other people looked at each other: Mr. Changs vision is really great. We borrowed it from the CFM56-3 engine. They never thought of hiding the overall technical source when designing, but Chang Haonan could accurately judge it after just looking at it for a few seconds, which was really not easy. Hai Yide originally thought that Chang Haonan would be disappointed when he saw this plan, but after the latter stared at the computer screen for about ten minutes, he nodded with satisfaction: Its pretty good to start from CFM56 and design it to this level. This is not Chang Haonan comforting several other people. China does not have a ready-made F110 engine for reference. You must know that the CFM56 is actually one of the engines of the Boeing 737. It is a large bypass ratio turbofan engine. The overall design is quite different from the small bypass ratio turbofan used in fighter jets. So Liu Yongquan and others actually derived the GE9 core machine from the CFM56, and based on the latter, they came up with a design that is extremely close to the F110. Its really good. "but." After giving the high praise, Chang Haonan shook his head and then changed the subject: The GE9 core machine and the F110 engine are indeed good things, but they are not suitable for our actual situation in China. At least its not suitable for the current timeline, the actual situation after my rebirth - he then added in his mind. ?In the last generation, the final version of the Turbofan 10 that finally achieved final installation was derived from this design plan, which is the same parent as the F110. ? Its just that as the changes Chang Haonan brought to the world have increased, and his own ability level (including system level, of course) has become higher and higher, it is no longer possible to directly copy the experience of previous lives in many things. "this" Liu Yongquan, who was a little excited just now, suddenly became nervous again: So this plan Of course its not completely without value. Some details are noteworthy and can even be used. ?Chang Haonan stretched out his arms and pulled out a stack of paper from the table next to Hai Yide: But in general, most of the content must be overthrown and restarted. At least, we must create a core machine that is truly suitable for us. (End of this chapter) Chapter 416 Choice, 10 technical routes for turbofans Chapter 416: Choice, 10 technical routes for turbofans The core engine of the GE9 is good in every aspect, but the total pressure ratio is too high, and the low aspect ratio compressor blades are a completely new topic for us in both design and manufacturing. Now that we have the successful experience of the Turbojet 14 , then there is absolutely no need to start a new business in a place like this..." Chang Haonan quickly wrote down a few numbers on the paper while introducing: "Currently, among the mainstream third-generation high-thrust turbofan engines in the world, the pressure ratios of the F100 and AL31F are in the range of 24-25, while the pressure ratio of the F110 is outstanding, and should be close to 31. I think your design even We have also used a more efficient curved blade design for the compressor. I am afraid that the pressure ratio will be 32-33, so for the two installation targets of our turbofan 10, the suitability will be very poor..." After all, the aviation engine cannot always stay on the ground test bench, but must be installed on the aircraft and actually take off to fly. So even if the aerospace power system becomes independent in the future and the engine project no longer exists as a supporting component of the aircraft project, it is impossible to design the aerospace engine without considering the actual conditions of the aircraft to be installed. ?Higher pressure ratio is indeed a good thing, but it is definitely not that higher is better without thinking. For engines with excessive high pressure ratios, especially turbofan engines, after exceeding the speed of sound, the power consumption of the compressor will increase rapidly, causing the isentropic compression line to shift to the right, the compressor efficiency will decrease, and the cycle work will decrease. ?Although the total pressure ratio on paper is still very high, the actual available effective pressure ratio is lower. In terms of actual performance, the engine is like a train at low speeds, and becomes a worm at high speeds. F110 and F404/414 both have this problem. How big is the gap? These two engines, which are obviously more advanced in technology, not only have a thrust curve inferior to that of the AL31F and RD93 at supersonic speeds, but their fuel consumption performance is also inferior to the latter two. This is a problem limited by basic physical principles. Unless a variable cycle engine is developed, it is impossible to achieve a balance of performance under various working conditions from the root. The F119 engine on the F22 chose a design completely opposite to that of the F110 for supersonic performance. The result is that it can cruise at supersonic speeds without using afterburner, but the fuel consumption in military push mode is extremely high, resulting in a huge amount of fuel in the entire aircraft. Instead, it turned into a short leg. Its not that Puhuis designers are incompetent. Its just a choice. The ATF project was born at the height of the Cold War. The combat scenario at that time was to conduct a short, high-intensity battle over Europe, and then either be shot down or return, which did not require a long voyage. ?? Its just that the plan couldnt keep up with the changes. When the F22 entered service in 2005, it was found that it had to go to the vast Pacific region to use its waste heat. As a result, the performance was out of touch with the needs. ?Of course, although it is impossible to fundamentally solve the problem, there are ways to improve it - Just redesign the aircraft with an adjustable inlet that has better matching and a wider range of boost capacity adjustment. The later new model F15 adopted this idea. As for F16 and F18... What a joke, if a medium-sized machine wants supersonic performance, just stay put. The current situation is that the overall design of the J-11 is that of the Su-27. The basic design of the fuselage + air intake already has an incredible boost capability. It is not easy to lower it. The J-10 has simply decided to use a non-adjustable DSI inlet. It is also impossible to lose the big for the small and fix the inlet state in a low-efficiency and low-boost-ratio state. Therefore, although the turbofan 10 can be freely used at the specific technical level, in terms of performance and style, it still has to follow the F100/AL31F route, and it is appropriate to set the boost ratio around 25. The overall design of aeroengine is an extremely complex system engineering, which has been reflected before the real design work begins. "oh" ?At the end of Chang Haonan''s explanation, Hai Yide and Liu Yongquan looked at each other with big eyes and small eyes. ? We are all professional and technical personnel. Although we were inexperienced and did not think of this level before, now that others have said it, we can still understand it. But Mr. Chang, if the boost ratio is limited, the overall performance of the engine at subsonic speeds, especially the fuel consumption and thrust-to-weight ratio, will definitely be affected..." The main performance optimization range of third-generation fighter jets is definitely still in the range from high subsonic speed to transonic speed. Regardless of F100, AL31F or RD93, they all sacrificed a certain degree of subsonic performance, especially the RD93. The huge fuel consumption at low speed (still dual engines) and the small internal oil directly brought the MiG 29 to the airport. The name of the defender. For the Chinese Air Force, which is expected to conduct high-intensity operations far away from the airport, this is indeed a critical issue. Yes, Mr. Chang, the J-11 has 9 tons of internal fuel. I dont care about the fuel consumption, but I look at the body of the J-10, and the internal fuel capacity should not be very optimistic..." Hairyide next to him also expressed the same concerns. In fact, this is one of the main reasons why 611 directly tied the two inner pylons to the auxiliary fuel tank when it first designed the J-10. AL31FN is still AL31F after all. It just changed some minor details such as the position of the accessory box. The engine is still the same engine. ?After being installed on the J-10, the range without auxiliary fuel tanks is really not impressive. But Chang Haonan shook his head decisively: The problem of fuel consumption can be solved by increasing the temperature in front of the turbine by 50-100C. This is a rather simple and crude method, but it is also the most effective. Chang Haonan adopted the same approach on the Turbojet 14 to ensure that the performance of the J-8C at different altitudes and speeds is balanced. Mr. Chang, the temperature in front of the turbine that we are promoting in the third generation is now set at around 1200C. This is already a high threshold for our material science level. If we increase it further..." As an aviation engine designer, Liu Yongquan has naturally considered these issues. But looking at Chang Haonan who didnt even raise his pen next to him, and then thinking about what happened on the Turbojet 14, it doesnt seem that incredible. ?However, after hesitating for a while, he still said: If we add more, Im worried that the risk level and progress of the entire project will be out of control. ? 1200, which is already the mainstream level of the international third-generation turbofan engine. It is indeed difficult to produce turbine discs and turbine blades with heat-resistant levels that exceed those of the United States in a short period of time. In materials science, there are very few opportunities for opportunism. China has now been able to produce nickel-based high-temperature alloy raw materials with similar performance to ReneN5, but it still has the same old problem. If you want to make something, just a piece of raw material is of no use. Each material requires subsequent processing. Processing and a series of supporting research, these things are also quite time-consuming and resource-consuming. ??If you abandon the second-generation alloy materials that currently have certain supporting research results and industrial practical experience, and jump directly to the third-generation, the risks involved will be very difficult to determine. Of course its too radical to directly change materials ?After directly using system points to smash TORCH Multiphysics, Chang Haonan is currently on the verge of "bankruptcy" and does not have so many points to use to comprehensively improve the level of the entire field of materials science. ?This method of improvement is also too rigid and does not conform to the logic Chang Haonan set at the beginning. To take a step back, even if there is a system to help and everything goes smoothly in the middle, it will take at least several years for him to solve the numerous problems in the middle by himself. Chang Haonans plan is to try his best to give at least the prototype aircraft equipped with the turbofan 10 a chance to participate in the 50th anniversary National Day military parade in more than two years. It will definitely be too late to wait for the materials. "So I plan to use a new active cooling solution on the turbine structure. The current film hole cooling still has great potential. Without changing the base material, it is not a big problem to increase the temperature in front of the vortex by 50-100C. After finishing speaking, he ignored the stunned people beside him and took the drawing with a simple schematic diagram in front of him again: As for the push-to-weight ratio issue you just mentioned, we will directly abandon the 3-9-1-2 structure, or this structure. "ah?" ??The other people in the conference room just felt that their brains were on the verge of death due to receiving too much information in a short period of time: If we dont use this structure...should we use a centrifugal compressor? The turbine compressor of a gas turbine can be simply divided into centrifugal type and axial flow type based on the principle. Generally speaking, except for the early stages of chaos, most turbojet/turbofan engines have uniformly used the axial flow type. Only some turboprop/turboshaft engines use centrifugal design. "of course not" Chang Haonan was a little helpless: "What I mean is to use a higher-efficiency single-stage load to reduce the number of compressor stages, compress the three-stage fan into a 1-stage or 2-stage fan, and the 9-stage high-pressure compressor into a 6-stage or 7-stage, considering The entire compression system accounts for about 60% of the weight of an engine. If the weight of this part can be reduced by 20%, the thrust-to-weight ratio of the entire engine can be increased by at least 10%. " Do you still remember the ultra-high load adsorption type curved swept combined leading edge edge strip blade that I took out as a calculation example during the last meeting? ?Hai Yide didnt go to the meeting last time, but Liu Yongquan did. Also listened very carefully. So he was the first to react from his confusion and nodded: Remember, I also took notes ??As he spoke, he took out a notebook from the bag he carried with him and opened it to one of the pages. From this slightly worn trace, it can be seen that he probably read a lot during this period. "That''s good." ?Chang Haonan gently tapped the title part of the notebook with his finger: This thing is the core technology of our compressor design. The leaf shape design you have learned before, whether it is end bending or end sweeping, end wall shape, or edge strips, is still a means of passively controlling flow separation. The reason why I want to mention adsorption blades is to use active control methods to further increase the single-stage pressure ratio, so that each stage can exert the compression effect of one and a half to two stages in the past! (End of this chapter) Chapter 417 Construction officially begins! Chapter 417 officially begins! In fact, as early as 1904, the German mechanic Ludwig Prandtl (not the Planck who studied quantum mechanics, although both men were German and lived roughly in the same era) was working on the flow around a cylinder. In layer experiments, it was found that air flow separation can be delayed by actively pumping the adsorbent surface layer. ? Its just that until now, no one has seriously considered applying this principle to the field of compressor design. Including some cutting-edge laboratories at MIT, they have only proposed related possibilities, and have successively begun to conduct some research on mechanisms and feasibility. So we cant blame Liu Yongquan and others for not thinking about this before. Chang Haonan introduced this ultra-high-load adsorption-type curved-sweep combined leading edge edge strip blade in the form of a "calculation example" before, without mentioning the specific application scenarios and basic principles of this thing. And to be honest, for most of the audience sitting below, it was not easy to just understand the numerical calculation method in the blade design process. Those who can produce as little as half a notebook like Liu Yongquan are already among the best. Its normal to not have time to think too much. Boundary layer suction can remove the high-entropy and low-energy fluid in the compressor. The lower the entropy value of the initial fluid before compression, the more work it takes to increase the same pressure of the same mass of fluid in a multi-stage compressor. less, the compression efficiency will also increase..." "This is the formula of Karman''s momentum equation. We don''t even need the assistance of a computer. By deriving it from a theoretical level, we can find that when the boundary layer is well adhered to the suction, the decrease in the momentum thickness at a certain position downstream and the suction The amount of decrease at the position is the same; while when the boundary layer is near separation, the decrease in momentum thickness at a certain position downstream is magnified by an exponential factor compared to the decrease at the suction position..." ??The basic principles of boundary layer suction did not break through the content of ordinary undergraduate physics. Even if it involves engineering applications, everyone quickly understood what needs to be done next after Chang Haonans explanation: So we must find the specific location where flow separation occurs in the boundary layer, so that we can...improve the efficiency of the single-stage compressor as much as possible? Thats right. Chang Haonan nodded happily: "This technology currently has two application directions. First, as I just said, high tangential speed adsorption compressors can be used in military small bypass ratio turbofan engines, using one-stage adsorption fans to replace the original multi-stage fans. This reduces the weight of the fan and achieves a higher thrust-to-weight ratio. The second is the low tangential speed adsorption compressor, which can be applied to turbofan engines with large bypass ratios to reduce the tip tangential speed and rotational speed under the same pressure ratio, improving the vibration characteristics and acoustic performance of the engine. Of course, , this should be something in the future for us..." So before carrying out the overall design, these technical problems must be solved first ?Hide next to him has opened a notebook and started taking notes. ?Although he is not the technical person in charge of the Taihang project, as the chief engineer, he certainly cannot understand the entire research and development process. ? What''s more, Haiyide himself is also from a technical background. Even though he has been away from the forefront for a few years, his most basic sensitivity is still there - With Chang Haonan''s current rocket-like progress, after completing the Turbofan 10 project, the other party will at least invest in the research and development of the next generation aeroengine, and may even go directly to a more basic and larger-scale project. It is impossible to waste time on personally designing other aircraft engines of the same generation derived from the third-generation core aircraft. At most provide some technical guidance. ?The other party has just made it clear that the technology acquired during the development of Turbofan 10 also has application value in a wider range. Haiyide still has a relatively clear understanding of himself. He knows that his ability to make some achievements in the field of aviation power in this life is already the limit, so after the turbofan 10 project is completed, they will participate in this batch. Its time for people who have passed Turbofan 10 to show their talents. As for now Listen well and learn well. This is just one of the key technical issues. ?Chang Haonan put down the pen in his hand and said: "Our foundation in aero-engine development is indeed too thin. There is no ready-made experience and data to follow for many things. We can only start from scratch. For example, the new active cooling technology I just mentioned also requires the design team responsible for the turbine part. I am specifically responsible for research, as well as the casing part... Fortunately, there are relatively few problems with the combustion chamber and afterburner, and many technologies applied to the turbojet 14 can be directly used. "This is just the design level. The 410 factory is responsible for the production and manufacturing at the same time. Especially the hot-end components, single crystal turbine blades, and the main bearings of the entire engine. The working conditions are very harsh, and the manufacturing level determines How many cycles can our engine be used? Although the life requirements can be relaxed on the premise of improving performance, the reliability cannot be too low. After all, there are single-engine aircraft to use. This needs to be coordinated by Mr. Hai. I may We will provide some help when necessary, but the main focus must still be on basic research... ? ? ? Although it was only a small meeting with less than ten people, it still lasted for an entire afternoon. In fact, Chang Haonan is equivalent to dismantling and distributing the work involved in the entire project. "The entire project team is expected to be initially divided into nine technical directions: overall structural design, compressor, combustion chamber, turbine, fan, casing, other auxiliary components, cold processing technology and hot processing technology to carry out work at the same time. There are also nine technical directions below each direction. They should be divided into different groups according to specific topics. As for the selection of key members in each direction..." ?Chang Haonan stopped the pen in his hand and looked at Hai Yide next to him: Mr. Hai? ?After all, the other party is the chief engineer responsible for administrative leadership. In terms of personnel allocation, it is not easy for him to directly override others. At least be polite. ? What''s more, Chang Haonan himself is not an employee of the 606 Institute after all, and his previous contact with this place was limited to the Turbojet 14 project. Therefore, in terms of understanding of the situation, he is definitely not comparable to Haiyide, who was born and raised in Haiyide. The latter nodded immediately: I will allocate the key personnel in each direction according to their previous work experience, especially the experience in participating in the Kunlun project. As for the person in charge of each topic..." Having said this, Haiyide lowered his head and thought for a moment. ?The impact in this area is so great that even he cannot come up with a list immediately on the spot, not to mention that it also involves colleagues from other factories. Although Institute 606 is responsible for the overall design, we are all brothers in the unit after all. If you really dont save any face, thats not good. "As for the person in charge, I will first understand the specific situation in the next few days and make a list of people with more relevant experience. Why don''t we decide the specific candidates at that time?" ?Hai Yide was not being polite before, he had a clear understanding of his position. Taking into account the actual situation of the Taihang Project, no matter who becomes the chief engineer, he will mainly be responsible for providing administrative support. And taking the blame. So he still left the decision-making power of key positions to Chang Haonan. Thats fine. The complete task distribution plan will be finalized at the general meeting next week. ?Chang Haonan closed the book in front of him and handed it back to Liu Yongquan: "But before that, the research work in several key directions must be started as soon as possible. In addition, I will personally be responsible for the two directions of turbine and thermal processing technology. As for the compressor, I think it can be left to Comrade Liu Yongquan. What do you think? ? The latters name was suddenly called and he couldnt even react immediately. Until Haid called his name again: Yongquan, show your attitude? Guaranteed to complete the task! (End of this chapter) Chapter 418 The country’s first compressor research center Chapter 418 The countrys first compressor research center As the saying goes, a big meeting is held for small matters and a small meeting is held for big matters. ?After that small meeting of ten people, the general technical direction of Turbofan 10 was basically determined. In this way, most of the issues that really need to be left to the meeting of all key members are some organizational issues. ?However, despite having made sufficient mental preparations before, the difficulty and complexity of actually taking charge of an entire project far exceeded Chang Haonan''s initial imagination. Even without encountering any obvious internal resistance, it still took him almost half a month to finally allocate the core research and development tasks involved in the Turbofan 10 project. The deadline was fully doubled from the original plan. Of course, for China''s aerospace development researchers, things like doubling the delay were basically routine in the past... So its not a big problem. Fortunately, everything is difficult at the beginning, but the subsequent work is much easier to sort out, and the entire project team is gradually getting on the right track. For Chang Haonan during this period, in addition to the overall design of the header turbofan 10, the first thing he had to complete was to build a specialized small high-speed adsorption compressor test bed. TORCHMultiphysics can indeed conduct numerical calculations and simulations of design solutions with a very high degree of fidelity, but this is only for the design process, and the content involved must have existing theories or at least engineering foundations in the past. It is an international initiative to apply the boundary layer suction principle to the design of compressor blades. Therefore, Chang Haonan not only has to complete the turbofan 10 project, but also has to improve the theoretical content in this area so that latecomers can do it. Just know why. On the other hand, even if the entire design process can be completed on a computer in the future, the finished product will always have to be tested on a real machine before it can be finalized. This is not only a national standard, but also the bottom line of aviation safety. ?If you just rely on "I Xunsi" to design, sooner or later there will be problems. ?However, this test bed equipment cannot be placed in Shengjing. Because the data calculations it generates require extremely high computing power to complete the analysis, and neither the 606 Institute nor the 601 Institute currently has a supercomputer on hand that meets the requirements. So in the end we had to arrange it at Beijing Hang University. ?At this moment, the happiest person is naturally Tang Lintian. ??When he heard Chang Haonan, who was rushing back to the capital after a long journey, talking about this matter, he almost reflexively jumped up from his chair and strode to the latter. ??Had it not been for Zhu Yadan standing in an imposing posture next to him, Chang Haonan had no doubt that the other person would hug him and kiss him a few times. Comrade Haonan, tell me, what kind of support do you need from the school? Even if all the teachers and staff of the school dig into their own pockets to advance the money, your request will definitely be met! If a university wants to develop, in addition to high-level researchers and sufficient funding, there is another item that is easily overlooked, which is some irreplaceable experimental equipment. Especially for the engineering field, these equipments often require large investments, long cycles, and relatively narrow applicable fields. Once a set is built in a country, or at least in a region, it is difficult to make the decision to repeat the construction, so within a certain range All research groups engaged in related research will be physically concentrated around this single seedling. Institutions that own such equipment can naturally gain huge benefits from it. At least a part of the research results must be shared, and a name must be added to the signature. Over time, it has formed a leading position in this discipline or direction. ?Of course, there are other reasons why Tang Lintian, who has always been relatively stable, became so out of control. ?Before this, Beijing Hang University had suffered a setback in the construction of a school-level wind tunnel laboratory. It got up early but ended up late - Although the predecessor of Beijing Hang University, Beijing Aviation College, was founded in 1952, it soon owned four then-very advanced scaled-down wind tunnels D1-D4 by moving in and building it by itself. Among them, D4 wind tunnel was fully involved in the process. The development work of my country''s first light passenger aircraft "Jingcheng No. 1". ?However, in the following decades, Beijing Hang University did not build newer wind tunnel facilities, and was eventually overtaken by Northwestern Polytechnical University in this regard. ? One step at a time, one step at a time. Although Beijing Airlines later tried to catch up with its competitors in this regard, the situation did not improve much until the 1990s. The main reason is that in this year and year, there are not many research projects in China that can use wind tunnels. For large national projects, the 29 base in Fucheng can be used for testing, so the application for the construction of new wind tunnels submitted by Beijing Airlines has always been Unable to pass, we can only make repairs based on the D4 wind tunnel that has been used for 40 years. ? And this test bed plan brought by Chang Haonan from Shengjing can completely serve as a new track for Beijing Hang University. "Well... there is no need to be so exaggerated as selling iron. This test bench is part of the Turbofan 10 project. It does not require funding from the school. All I need is to give me a place. It would be better if the area is larger." Chang Haonan looked a little too enthusiastic. Tang Lintian couldn''t help but take half a step back. Hey, how can that be done? The school must support your work, Comrade Haonan. ??Tang Lintian directly stretched out his hands and held Chang Haonan''s hand: I think its better to take this opportunity to establish a compressor research center. You dont have to worry about funding. Except for the funding related to the No. 10 Project, the remaining vacancies will be filled by the school! ?Chang Haonan was a little surprised by the other party''s sudden generosity. "Dean Tang, isn''t this a bit too aggressive..." After all, in his impression, his school was not so tight in the late 1990s, at least it was not so wealthy. In any case, the school could have so much surplus funds in the first half of this year because it borrowed your money and used these funds to support your work, which is what it should be..." ?Tang Lintian quickly explained, fearing that Chang Haonan would not want the money. For Beijing Airlines, no matter what new research field they want to engage in, passing the approval is the most difficult part. And now that Chang Haonan has a sword like the Taihang Project in his hand, what approval can he still fail to pass? As for money, thats even more trivial When the research team is awarded a horizontal project, the funding it receives will basically be plucked once by the school. The proportion varies from one quarter to one half. Of course, the funds for people like Du Yishan or Chang Haonan must be fully paid. But in the past year, under the leadership of the latter, other research groups in the school have also received many more projects than in previous years. There are not only vertical topics from higher-level units, but also horizontal topics provided by many state-owned enterprises and even private enterprises. Accordingly, the school reluctantly made a lot of money from it. Sponsoring a research center is no longer unthinkable. Then lets build three of these compressor test benches at the same time. Since the other party''s hospitality was hard to refuse, Chang Haonan was no longer polite. "OK." ?Tang Lintian nodded. The designed single-stage pressure ratios are 1.4, 1.6 and 2.4 respectively, corresponding to the upper speed limit of the blade tip of 150m/s, 300m/s and 600m/s respectively. "Listen to you." ?Tang Lintian nodded again. In addition, I also need a large test bed with non-contact scanning temperature measurement equipment, as well as corresponding fuel pipelines and ignition equipment, and the operating temperature must reach at least 1600C. ?This obviously has nothing to do with the compressor as a cold-end component, but Chang Haonans preparation for subsequent turbine research. ?This level of extravagance made Zhu Yadan, who could not understand the conversation between the two, a little worried. ?But Tang Lintian glanced at Chang Haonan, hesitated for half a second and gritted his teeth: Also. Thats a deal! Chang Haonan stretched out his other hand with satisfaction: "But my energy is really limited now. Please let my teacher be in charge of this experimental center." "make a deal." The four hands of the two people were tightly clasped together. (End of this chapter) Chapter 419 Ermao in trouble Chapter 419 Ermao in trouble At the same time that the research and development of the turbofan 10 project led by Chang Haonan was in full swing. ?At the Ivchenko-Progress Design Bureau in Zaporozhye, a unique ceremony is taking place. Pay wages. ?Although it sounds very ordinary, for the employees of this old design bureau, the last time they were paid a real "salary" is indeed a long time ago. Everyone lines up in three teams according to their positions. Engineers are on the far left, operators are in the middle, and logistics staff are on the far right. Take your work certificates and ID cards. Everyone in the design bureau has them. Dont mess around..." ?Two employees from the finance department held loudspeakers in their hands and shouted at the top of their lungs to maintain order in the huge workshop. ??Although this design bureau completed its privatization and restructuring a few years ago, its name has not changed, so everyone habitually continues to use the previous name. Except that the once prosperous factories, schools and streets have become depressed and deserted, and almost everyone does not have enough to eat, nothing seems to have changed much from ten years ago. Fortunately, queuing is something that old Soviet people are familiar with. ??Besides, after the alliance disintegrated, they havent even had to line up for a long time In the past, I had money in my pocket but couldn''t buy anything, but now I don''t even have any money in my pocket. Since everyone has trouble eating, there will naturally be no shortage of goods. At least there is no shortage on the shelves. So everyone has no complaints about being able to experience the feeling of queuing again, or even queuing to receive wages. ??The crowd quickly divided into three lines according to the instructions, and lined up quietly waiting for the money to be distributed. Uncle Ivanov, have you heard anything? ??A young man in the middle line looked around for a while, and then asked in a low voice to the gray-haired old man in front of him: "How come the bureau suddenly has money to pay wages? Did it receive any new orders?" China''s basic industrial system is inherited from the Soviet Union. Therefore, the Ivchenko-Progressive Design Bureau is similar to the 606 Institute. It is a relatively simple design unit. The products designed by it will be handed over to another factory under the same system-usually Motor Sich Manufacturing Plant is responsible for production. ?Now after the completion of corporatization, the two have even been merged directly into the same group in name. But they all have considerable independent authority in terms of operations. ?Theoretically speaking, with what Ermao is still holding in his hands, even if he sells his property, his life will not be so miserable. However, after 1991, compared to Sanmao, which almost continued the alliance system, and Da Mao, who had a big business and at least maintained the most basic order of production and life, the situation on Er Mao can be described as a complete collapse. The companies after privatization collapsed to the point that even if they wanted to sell Soviet heritage like Sukhoi or Ilyushin, they didnt know what they had to sell. And the inheritance in their hands is indeed a bit embarrassing. Most of the time, what Da Mao needs to do to resume production is to check for deficiencies and fill in the gaps, while Er Mao optimistically says that it is Nuwa who needs to mend the sky. In other words, although there are many key links in the industrial chain on the latter side, if you really want to create the most downstream and most profitable "products", you can almost only go back to the ones that have already been divided. The eldest brother who has lived at home is connected. ??However, now the eldest brother seems to have found a new love from the south, and he pays less and less attention to the second brother... So, being able to pay wages is both a surprise and an surprise for the employees of Ivchenko-Progressive Design Bureau. And like this young man, a quick-thinking person who has not experienced life in the league for too long has realized from these years of troubled life that opportunities cannot come by just waiting. You have to find a way to do it yourself. Just grasp it. To seize opportunities, the most important thing is of course information. The old man named Ivanov turned around and looked behind him. He quickly recognized the young mans identity and couldnt help but show a slightly surprised expression: Oh, it turns out to be little Sashurya, I thought you had left with Alyonushka and the others. Unlike these old people who have feelings for the design bureau, many young people choose to leave the factory and find another way to make a living after experiencing a life without wages for several years. Some people choose to go abroad through various channels, while others choose to engage in other Work or just join the gang. No, Uncle Ivanov, I am different from Alyona and the others. The design bureau raised me and I will not leave here. Alexander Chulsky shook his head and replied righteously: Besides, I have grown up and cant do anything else except carpentry. Even if I go out, I may not be able to find any job, so I might as well stick with you. Hearing these words from the other party, Ivanovs eyes were even more moved: "Okay, but the bureau didn''t receive any new orders. I heard that they cooperated with Tupolev and exported the technical data of the D436 engine along with the Tu334 passenger plane in exchange for a large sum of money. " As a senior engineer in the design bureau, Ivanov is naturally much better informed than a small ordinary carpenter. ?While chatting along the way, two people had already taken their turn in the queue to collect the money. Engineers are charged 40 US dollars plus 600 hryvnia per person, while ordinary employees are charged 20 US dollars plus 400 hryvnia per person. Why are most of them hryvnia? Ivanov complained to the financial staff in front of him with some dissatisfaction: Chinese people will never pay in our currency, they will definitely pay in US dollars. ?Hryvnia is a currency issued by Ermao in 1996 to replace the Kubon bonds issued in 1991, which were almost useless paper at that time. ??Although inflation has not been too serious in the past year, the experience of previous years still makes everyone uneasy about the new currency. In such an environment, the U.S. dollar is naturally the well-deserved hard currency. "How much and how to pay are all determined by the above, Mr. Ivanov, we are only responsible for the operation. I haven''t received enough money myself..." The person who was asked also had an angry look on his face. It is naturally impossible for the Chinese to pay hryvnia. They will either barter or pay US dollars. ?The financial employees sitting here distributing money have the same standard as the "logistics staff" in the row on the far right, which is 10 US dollars and 300 hryvnia. ?This amount of money is barely enough for one person, but it still cannot guarantee enough food for a family of four or five. Apparently, someone poured a hand in the middle. ?However, for Chulsky, who had enough to eat and the whole family was not hungry, it was quite satisfying to receive a salary with US dollars in it. ??And now he is concerned about something else. ?Chulsky was indeed an orphan raised in an orphanage affiliated with the Design Bureau, but this was only the least important reason why he chose to stay in the Design Bureau. ?There is indeed a local smuggler responsible for smuggling people. It is said that they have a way to take people to France or the United States, and promise to help people who have passed by find a job. ??But being naturally calm, he did not sell off his little property in exchange for travel expenses when his brain got hot. Instead, he first spent about a year and a half learning English. ?Although I am not fluent enough, I can at least speak a few words without losing my sight. And also took advantage of this period of time to carefully observe the operating modes of those snakeheads. turned out to be that most of the targets that the other party finally sent away were young and beautiful girls. Including Alyona Melnikova, whom Ivanov just mentioned. ?Then the so-called "a job" seems more suspicious. After all, most serious industries seem to need more young and powerful men. More importantly, although he is just a carpenter responsible for making wooden models, Chulsky''s intuition tells him that the design bureau he works for should be a real gold mine, but he has not yet found the right way to dig it. . What happened today undoubtedly verified his guess. ??Although each person can only receive hard currency ranging from 10 to 40 US dollars, considering that the entire design bureau still has thousands of employees, the total amount is quite large. "Uncle Ivanov, I will invite you to eat at Aunt Bestemianova''s restaurant outside at noon, but you have to tell me what happened recently and what happened to those Chinese people you just mentioned. ?Chulsky pulled Ivanov out of the crowd and said to the latter. "this" Ivanov hesitated. ?After all, things are not easy for everyone these days. The price of a meal at a restaurant outside is often enough to cover two to three days of food expenses. I dont have any other family members to support, so I can save enough money for two months. Okay, but it has to be vodka. He ultimately failed to withstand the temptation of good food (and wine). "certainly" People''s names in Russian or similar languages ??have a very complex nickname system. There may be more than a dozen names used to refer to the same person. Sashulia is one of Alexander/Alexandra''s nicknames. Compared with the commonly used ones Sasha needs to be closer (End of this chapter) Chapter 420 Game about Motor Sic Chapter 420: Game about Motor Sic Just as the employees of the Ivchenko-Progress Design Bureau were queuing up to receive wages they had not seen for many years, in the design bureau building not far away, Belayev, general manager of Motorsic Group, was receiving a group of guests from Austria. . In fact, he had not received any news related to this before. He only received a call from the Secretary of the Minister of Industry yesterday morning, informing him that such a group of people would be coming today. As for the specific identity of the visitor, the size of the group and the ultimate purpose, they are all unknown. ??And what is quite strange is that the other party specifically asked him to go to the Ivchenko-Progressive Design Bureau to greet him. You should know that although Motorsic and Progress are both located in Zaporozhye, the latter is in the nature of a subsidiary after all. It is a bit strange to have the person in charge of the group go all the way to a subsidiary company to receive customers. Dr. Deles, this is the head of our Motor Sich Group, General Manager Vyacheslav Belayev. This is Alexey Kuritsyn from the Ivchenko-Progressive Design Bureau The first person to speak was Anatoly Ribiazin, the Minister of Industry of Ermao who came with the other party and his party. As the hosts, Belayev and others had no choice but to stop their doubts and shake hands with the guests one by one. After introducing the identity of the relevant personnel on his side to the visitor, he turned to look at Belayev and the others: This is the general manager of the Austrian Diamond Aircraft Industry Company, Dr. Christian Drais. He came here specially to choose a suitable power unit for a new light aircraft produced by their company. "I see." ?Hearing this explanation, Belayev and Kuritsyn''s eyes lit up and they quickly changed their attitudes: Then welcome Dr. Delais, our Motorsic Group has strong strength in the field of aero-engines. I believe you will be able to find a model with suitable price and performance, and we will try our best to cooperate. In fact, the entire group is still in the chaotic stage after privatization. Even the two people in charge of the group and the design bureau dare not say what archival information they can dig out from the pile of old papers, otherwise they will not The export of D436 engine technology has always been suppressed by Da Mao next door, and in the end it only received about 15% of the payment. Of course, even so, the contract worth tens of millions of dollars and the advance payment of nearly two million dollars (although a considerable part of it had already become hryvnias when they got it) still made the entire Ivchenko-Progressive Design The Bureau breathed a sigh of relief. However, as the parent company, Motoric Groups benefits from this contract are very limited. During the last negotiation process, they were too honest and admitted that many of their process data had been lost and needed time to search and supplement. As a result, the production of engine parts was almost completely handed over to two manufacturing plants in Moscow and Ufa. Qi only got a small share related to bearings and fans. So no matter what the actual situation is this time, Belayev, who has already suffered a loss, must still let the words out first. Very good, this is why we chose to come here instead of looking for old aero-engine companies like General Dynamics or Rolls-Royce as we did in the past. As suppliers, they are too strong. Fortunately, Delais on the opposite side didn''t seem to see any clues. He just nodded sincerely and continued to add: And, now that the Iron Curtain has fallen, someone has to take the first step to accept our new friends. Its already 1997, so Belayev naturally wont believe these nonsense anymore. ??If Europe really regarded itself as a friend, how could it be like this? Just for the sake of business, he still couldn''t express these slanders. ??Kuritsyn, who was next to him, was afraid that his old friend might not be able to hold back his words and he quickly changed the subject: Lets get down to business. What level is the new aircraft designed by your company, and what are the specific technical requirements for the engine? We can provide various models ranging from 1.5 tons to 25 tons. In fact, Kuritsyn had never heard that there was any aviation manufacturing industry in a country like Austria, but since the other party could convince Minister Ribiazin, there must be a relevant demand. While talking, the group of people had already entered the conference room on the top floor of the building. "Uh... I think you may still have some lack of understanding of our Diamond Company. Our main business is in the field of general aviation and does not require jet engines." ??Deleith, who had just sat down, was not annoyed at all. He just took out two documents from the briefcase he carried and handed them to the representative of the Motor Sic Group sitting opposite: This is a brand-new product launched by our company for the new century. It is expected to be the main model in the next 20-30 years. The DA450 is a dual-purpose military and civilian multi-purpose aircraft. The estimated production number may exceed 500 aircraft. ? Kuritsyn and Belayev took the file and opened it. Inside was a promotional rendering of a single-engine propeller aircraft, as well as some basic performance data. "Empty weight is 1350kg, maximum takeoff weight is 2800kg, fuselage length is 10.75m, wingspan is 11.74m, maximum flight speed is 463km/h, cruising speed is 426kkm/h, maximum ceiling is 7010m, maximum range is 2300km, maximum external load is 750kg Obviously, this aircraft was designed with multiple uses in mind, and can complete training, patrol, transportation and even ground attack missions. ??Kuritsyn quickly read the technical specifications of the aircraft, but then frowned: Your aircraft the empty weight and maximum takeoff weight seem a bit too small compared to its size? ??Although he is not an aircraft designer, as an old engineer who has been immersed in the field of aviation power for decades, Kuritsen has some ideas about aircraft. Generally speaking, for such a large aircraft, the empty weight is 1600-1800kg. Thats right, the biggest selling point of the DA450 is the large-area use of composite materials instead of metal in the aircrafts structural parts, which greatly reduces the aircrafts weight and operating costs. ?De Rais was naturally prepared for this kind of question and answered unhurriedly: "So our aircraft only needs a 450-kilowatt turboprop engine to operate normally. The cost of fuel consumption and engine maintenance is much lower than competing products of the same type. In addition, this engine also needs to have complete full power. For digital control systems, the overhaul interval cannot be shorter than 2,500 flight hours..." After Delais finished talking about their requirements for the engine, Ribiazin, who was sitting at the head of the conference table and had been silent just now, immediately spoke: I remember that when I visited here last time, I saw an engine called AL460S. The technical data should be in full compliance with Dr. Delaiss requirements. ?Kuritsen next to him raised his eyebrows slightly. He did not remember that when Ribiazin came last, he introduced him to this model that was quite unpopular and that there was actually no hope within the group. And although the other party is the Minister of Industry, the current Ermao is different from the past alliance. Ribiazin is actually a businessman with no engineering education background. His ability to accurately remember the engine model and parameters makes people a little bit unavoidable. surprise. ?Seeing that neither of them answered immediately, Ribiazin, who was a little embarrassed, had to add another sentence: Why dont you take Dr. Delais and the others to see the information on this model of engine in the afternoon? He had already said this, and Belayev had no choice but to nod and agree for the time being. ?However, just after the first meeting, the two men took Ribiazin to an inconspicuous place. Mr. Minister, the AL460S is not a finished engine that can be put into use immediately. It still needs some follow-up improvement work. ??Kuritsyn said first. Whats the point? Their DA450 aircraft is still on the design drawings. Wouldnt it be great if you spent some time perfecting the engine? ? Ribiazin shrugged, obviously not thinking this was a serious problem. However, whether it is our design bureau or the Motor Sich Factory, the people responsible for turboprop and turboshaft engines are currently concentrating on the development of the D27 propeller fan engine, and there is simply no way to put into production a new model in a short period of time. D27? Ribiazin was confused when he heard this model number. This makes Kuritsen even more strange. After all, this is a far more well-known model than the AL460S. ?However, he still explained: As long as this model can be produced with the power of the An70 transport aircraft, a 10,000kW giant, it can be said that we, Antonov, and even the entire countrys aviation manufacturing industry will be saved. But Ribiazin frowned after hearing this: But I heard that the current progress of the An-70 is not going well. The first prototype crashed just last year, and no external investment has been found. Where can you find the money to complete a brand-new transport aircraft project? Didnt it mean that the Chinese are in contact with Antonov? If they are willing to take over this project, the funding should be..." Kuritsyn was only halfway through his sentence when he was interrupted impatiently by Ribiazin: "The Chinese people have only visited Antonov a few times. They are obviously more interested in the jet-powered IL-76. We can''t expect a project like the An-70 that requires long-term investment. If the AL460S thing comes to pass this time, , you must give priority to ensuring the research and development and supply of this model after you return, otherwise we will not even be able to pay liquidated damages..." ??Kulitsyn wanted to say something more, but was secretly stopped by Belayev next to him. The latter had been silent just now, but he was not in a daze. He just felt that he had seen a similar plot somewhere. After Ribiazin left, Kuritsyn turned around unhappily: Why did you stop me just now? "He has obviously made up his mind. This is not a problem that we can solve in just two sentences." ?Belayev shook his head: In addition, I plan to send someone to Antonovs side in the afternoon to confirm the situation. The matter of An 70 should not be as simple as it seems..." (End of this chapter) Chapter 421 Air Police 200, officially launched Chapter 421 Air Police 200, officially established project ??What Belayev just thought of was naturally the aircraft carrier Ulyanovsk that was easily dismantled a few years ago with a contract and a mere few million in liquidated damages. ?Although this matter has not yet been widely circulated due to the lag in information dissemination and the intentional ignorance of the international media, at least everyone in the domestic military industry in Ermao already knows about it. Of course, the Ukrainian ship was actually only 30% completed at that time. Except for the nuclear reactor, none of the core subsystems were in place, and it was still far from even being launched. ?In the context of the disintegration of the alliance, even if funds are injected later, it is impossible to complete this huge ship. It can only be said to be a no-brainer, but it is not unacceptable from a rational point of view. Its just that I was cheated again when I finally sold scrap steel (the negotiated price of 450 US dollars/ton turned out to be 150 US dollars/ton), which made people very unhappy. But An 70 is different. ?This aircraft has gone through most of the design process, and all it needs is a user willing to pay and the last tremor of the D27 engine. The first prototype did crash in 1996, but that had nothing to do with the aircraft itself. It was entirely a fault of command and operation due to organizational chaos. ?According to what he learned from his last communication with Antonov, the latter has already started manufacturing the second prototype, and has even signed a new order for 4 D27 engines You must know that although Antonov''s life was not easy after 1991, it still owns Antonov Airlines, which operates more than a dozen An-124s and the unique An-225 transport aircraft. ? Relying on these almost monopolistic large-ticket air transport businesses, key projects can still barely survive. You should know that in addition to China, there are even several European countries that are unwilling to participate in the A400M project that have shown strong interest in the An-70. Especially Germany. ??If you want to say who has been the biggest beneficiary from the series of events from the drastic changes in Eastern Europe to the disintegration of the alliance. ?That is definitely not the United States but Germany. Germany, which has finally achieved the unification of east and west, once again felt that it could do so with the help of the European Union. It hoped that it could take advantage of this opportunity and its already good industrial foundation to regain its status as a country that had been deliberately suppressed by the two superpowers in the past few decades. The development of aviation manufacturing industry. An70 is such a project that has placed the hopes of the Germans. At this juncture, we suddenly have to give up on improving the D27 engine that has completed many test flights, and focus our resources on a small turboprop engine with a power of 450kw that has only been tested on benches. Moreover, this turboprop engine The only installation target is an unknown foreign model with only a few brochures. How do you see it, there is a kind of beauty that is missing from the brainstem. ??Moreover, during the meeting just now, Industry Minister Ribiazin and the Austrian businessman Delais behaved strangely. ?Belayev, who has worked in the field of aviation power for most of his life, knows very well that there must be a high degree of matching between an aeroengine and an aircraft. Even wing cranes or tail crane structures that have very low engine compatibility requirements often require the engine (actually the nacelle in most cases) to be fine-tuned differently for different types of aircraft, which often results in essentially the same model. The engine has many sub-models. ?? And this Austrian diamond company traveled thousands of miles to find a new engine supplier that it had never cooperated with before. As a result, the information it brought did not even include the specific dimensions of the aircraft engine nacelle. You must know that the engine of this small propeller aircraft is built-in, and it is placed in front of the nose. Hence, the requirements for engine volume, especially transverse dimensions, are extremely stringent. Choosing motivation is definitely not as casual as buying groceries. ?Thinking of this, Belayev was about to turn around and call someone. But then something came to mind. Husband and wife are originally like birds in the same forest, but when disaster strikes, they fly separately. It is indeed impossible to rule out the possibility that Antonov is doing something secretly from him. So its best to be prepared. Alyosha? ?He turned around and called to Kuritsyn who was about to leave from the other direction: "The design bureau is relatively close to the station. There should be a train to Kiev in the afternoon. Find someone who is knowledgeable and smart to go to Antonov to inquire about the situation." The latter was stunned after hearing this request. , and soon understood what the old friend meant. No problem, Ill ask someone to make arrangements. ?Belayev also told: Remember, dont go through official channels. Use ordinary employees there to find out whether the An-70 project is still being advanced. ??Kuritsyn nodded to indicate that he understood, hesitated for a moment and then asked: Thenthat Dr. Delais just now Lets receive them as usual. After all, Minister Ribiazin personally brought the people here, so its better not to be too stiff. "good." The words are divided into two parts. At Jinghang University, after deploying the related research and development tasks of Turbofan 10, Chang Haonan himself is not as busy as he was in the past half month or so. ??The turbine and thermal processing processes that he is mainly responsible for require a lot of new equipment and materials and cannot be started for a while. As for the other core part, the high-pressure compressor, Chang Haonan has informed the design team under Liu Yongquan of the relevant technical points. I have to say that the latter is indeed very capable. After a short period of discomfort at the beginning, he was quickly able to complete most of the work independently. After all, in the previous life, it was under his hands that the turbofan 10 engine was finally perfected. ?Chang Haonan only needs to check the progress regularly and solve some of the most difficult problems or problems involving route selection. In contrast, it was the other two people who brought him the main workload during this period Wang Xiaomo and Liang Shaoxiu. After realizing that the British radar used by the Y-8J posed huge technical risks when facing NATO countries, the Navy immediately halted the manufacture of the other four Y-8Js that had not yet started. The remaining four sets of Sushui 2000MS radars that have lost their installation targets will be used to provide spare parts, while the four Y-8Js that have been in service or have begun manufacturing will continue to play a role in the East China Sea and the North Sea, but will also lose their status as the core of naval aviation operations. , return to the original business of "maritime patrol". Under such circumstances, the Air Police 200 early warning aircraft using the brand-new Y-8 Category 3 platform and T-shaped antenna naturally entered the Navy''s field of vision, and then passed various reviews almost at the speed of light, and the project was successfully approved at the end of July 1997. The parallel system of dual chief divisions in the research and development of early warning aircraft has also been formally established. ?Originally, these two people were planning to let themselves go completely and directly asked Chang Haonan to serve as the chief aircraft engineer. But after they came to the door, they found that someone was more courageous than them The latter has already put on the hat of a chief engineer, and if nothing else happens, he will have to wear another one after the heavy-duty die forging press project is established in the second half of the year. So Chang Haonan finally rejected their good intentions: "Now it''s enough to keep me busy running between Shengjing and Beijing, and Torch Company has just got on the right track. It''s time to focus on business and operations. Do you really want me to dance on three eggs? Its a bit overwhelming. I think the position of Chief Aircraft Engineer should still be filled by Gong Liang. As for me, as we said before, we should have a Deputy Chief Engineer in the name to help solve some key problems. After all, in the original timeline, the chief engineer of the Y8 platform special aircraft was Liang Shaoxiu. ??Although today''s new Y-8 Category 3 platform still has a mediocre flying experience and poor endurance, it has at least solved the most serious problem of wing icing. ?Furthermore, Liang Shaoxiu also specially optimized the propeller propulsion efficiency, barely regaining some low-altitude and low-speed performance. So, its not a big problem. (End of this chapter) Chapter 422 Electronic warfare, not just interference Chapter 422: Electronic warfare, not just interference Another big and small event in mid-August is that the graduate students of the class of 1997 are officially admitted. As a special yet ordinary member of the group, although no one has treated Chang Haonan as a normal doctoral student, the process must be followed. So, he still had to report to school and register his student status. Fortunately, the school''s management methods for graduate students, especially doctoral students, are hugely different from undergraduates, so for people like Chang Haonan who are bound to not follow the normal training plan, it saves a lot of trouble. ?For example, he registered at the graduate school of the college a few days later than other students. In this era, there is no Xuexin.com and online archives, so it doesnt matter whether its a few days earlier or a few days later. Just when Chang Haonan was about to enter the graduate department that day, he happened to meet two old acquaintances who walked out of Tang Lintian''s office. Li Jie and Xu Yang from the Institute of Computing Technology, Chinese Academy of Sciences. After the development of the TORCH Multiphysics software was completed, considering that the latter was loaned out from her original unit in March this year and has been running around outside since then, Chang Haonan did not assign her new tasks and directly let her return to computing. Place. It turned out that we hadnt seen each other for three weeks, but we met again at our school. ?What a fate. Xiao Chang? Tang Lintian, who personally saw the guests out, first noticed Chang Haonan on the other side of the corridor. Then the other two people also looked this way. Permanent worker? Comrade Haonan. ?Li Jie suddenly smiled and walked quickly to Chang Haonan. The latter also took the initiative to shake hands with the other party: Academician Li, long time no see. In fact, the two have not met many times before. The main intersection was during the period when the software was just being designed. At this time, Tang Lintian also followed closely behind and walked over: Xiao Chang, you came to the administration building today. Do you need my help? Since the last time the compressor research center passed the approval and started construction, Tang Lintian was eager for Chang Haonan to come to him every day with something to do. You should know that after learning the news, Qinghua University, Bingcheng University of Technology and Zhejiang University almost immediately approached him and expressed their hope to "co-build" this research center as a participant. ?Of course, the results obtained from this will naturally be shared. More importantly, the alliance composed of several top domestic schools, which had always been shrouded in mystery before, finally extended an olive branch to Beijing Hang University. With such an immediate effect, if he could do it a few more times, Tang Lintian felt that he would soon reach the peak of his life. ??It''s just that I have been looking around for many days, but I still can''t see Chang Haonan. ??As a result, it was a good start today, which naturally made him extremely excited. ?However, Tang Lintian''s eagerness did not receive a reciprocal response. I...come to report to the new students. Chang Haonan answered truthfully. ?This unemotional answer made the atmosphere at the scene a little awkward for a while, and even felt like a dog chasing a goddess. Even Xu Yang couldnt help but hold his head and shake his head. ??Tang Lintian, who was full of hope just now, could only touch his temples in embarrassment: Oh, yes, you have just entered the Ph.D. program... Its not that he has a bad memory. Just look at all the things Chang Haonan has done in the past few months. How can a normal person figure out that he is just a young man who has just received his bachelors degree a few months ago? ??Finally it was Li Jie who spoke, breaking this scene that Tang Lin would never forget for half his life: By the way, Comrade Haonan, Researcher Xu also wants to see you for something this time. "Huh?" Xu Yang obviously didn''t expect that the topic would suddenly be brought to her, and it was not her initiative to follow him today: You dont have to bring me here... But before she could finish speaking, Li Jie continued: Didnt you say before that there is a new algorithm that can reverse signal encryption, and that you need to use Comrade Haonans new technology... But I have only completed the preliminary development of that algorithm ?Having said that, Xu Yang finally explained the ins and outs to Chang Haonan: Well, thats what happened. "Remember when we were designing the electronic jamming pod, you mentioned an idea to me, saying that we could design a special antenna to simulate the directional signals emitted by satellites through the scattering effect of the ionosphere or comet trails? " Chang Haonan was a little confused by the other two, but he did mention this idea to a few people such as Xu Yang and Ding Gaoheng, so he nodded: "Of course I remember that the idea at the time was mainly to interfere with satellite navigation signals and use it to disable the enemy''s precision-guided weapons, such as cruise missiles or satellite-guided bombs. However, this process does not require any complicated algorithms. The difficulty of this matter mainly lies in the hardware, that is, the antenna design mentioned by Xu Yang, how to disguise the signal as being transmitted from a satellite. ?The current GPS has just been put into use. Military and civilian uses only have open frequency bands and different accuracy, and almost no anti-interference design has been considered. In fact, due to its one-way communication characteristics, there is not much room for maneuver in terms of anti-interference. So much so that until more than 20 years later, interfering with GPS is still a matter with a low technical threshold. If its just interference, sure. Xu Yang casually smoothed the hair around his ears: But this is a bit wasteful. So Im trying to develop a new algorithm that can reverse engineer and then restore the navigation signals emitted by GPS satellites and re-emit them to generate any new coordinate points we want. ?This sentence was a bit awkward to say, but Chang Haonan understood what she meant almost immediately: You mean, you can directly control it instead of just interfering with the other partys GPS navigation equipment? Yes, but this requires support at both the algorithm and hardware levels. Xu Yang nodded: I originally planned to come to you to solve the hardware design problem after I understand the algorithm, but since I encountered it today, Ill talk to you first. After listening to the other partys description, Chang Haonan gave an affirmative answer after some thought: Its indeed feasible, we can talk about it in detail later In fact, its not like he hasnt thought of similar ideas before. ? Its just that if Chang Haonan spends his own time, energy and even scientific research points to develop such an algorithm, the price-performance ratio is really low. Because although it is not difficult to spoof GPS, once this method is noticed by the other party, it is too easy to counterattack. After all, whether it is navigation equipment or guided weapons, they do not just rely on satellites. ? Just add a filtering program to compare the GPS signal with inertia or starlight, a guidance method that cannot be interfered with. Once you find that the coordinates given by the satellite have a huge drift compared with the integration result, just block the signal directly. In the end, after a long circle, the effect is still similar to that of simple GPS interference, that is, it can only make the positioning inaccurate, but it cannot cause too obvious deviation. ?But since Xu Yang has proposed this idea now, she can be responsible for improving it. It''s okay to use it as a one-time weapon. ? Anyway, hardware design is different from targeted deception algorithms. The former is a one-size-fits-all thing, and can be used for other purposes even if the other party counterattacks. ??Seeing the two chatting animatedly, Li Jie, who was standing next to him, secretly breathed a sigh of relief. Perhaps because of the fact that she had worked with Chang Haonan for several months before, Xu Yang immediately transformed into a high-intensity stress monster after returning to the computing institute. In less than a month, four or five researchers who worked with her had their mentality exploded. . ?This time he went to Beijing Hang University to discuss with Tang Lintian the construction of a second Sugon 1000A supercomputer funded by the school. The reason why we brought Xu Yang, who had little to do with this matter, was to find an opportunity to throw her to Chang Haonan again You two talented men and women can play whatever you like, please let us ordinary people go... (End of this chapter) Chapter 423 I can only go on stage and give a lecture. Chapter 423 I can only go on stage and give a lecture. Because Chang Haonan registered a few days later than others, the "new student gift package" that Chang Haonan received was obviously richer than others. In addition to routine receipts, manuals, certificates and some small gifts, there are also all teaching materials corresponding to the first-year postgraduate course (and often the entire postgraduate period). Although Chang Haonan probably has no use for them. This naturally includes the numerical computing textbook edited by himself. The quality of this book is quite good Looking at the beautifully bound cover, Chang Haonan had a strange feeling in his heart. In the more than a year since his rebirth, he has received a lot of achievements and honors, but when he saw his name signed on the cover of a large work, it was also his own teaching materialand he was still the first, indeed the first. once. I have to say, its quite a novel feeling. ??The way he stared at a book in a daze was naturally noticed by the teacher in charge of student registration in the graduate department. As an ordinary administrator, she certainly didn''t know much about what Chang Haonan was involved in. She just felt that the students in front of her were attracted by this thick textbook, so she came over and took a look at the cover, and then showed an expression of sudden realization. . Oh? What a coincidence, the editor of this book has the same name as your classmate. Obviously, the other party thought he had grasped the key to the matter. ?Although there is no mirror, Chang Haonan believes that his expression must be wonderful at this moment: Ah, yes, what a coincidence. ??He tried his best to control his facial muscles, and at the same time put the books and all other things into his backpack as quickly as possible, then opened the door and left the office of the graduate department. If he went any slower, he would be worried that he wouldn''t be able to hold on. There is definitely no need for him to attend the class. But the class still needs to be attended. After all, I have already promised Teacher Liu Hongbo before. Since Chang Haonan registered a few days later than others, almost immediately afterward for him was a section of "Numerical Simulation Principles and Methods (1 by Mr. Liu Hongbo. At the beginning, this course was originally planned to be called "Application of Finite Element Thought in Aircraft Structural Design". The focus was actually on the finite element idea and its mathematical foundation. There were actually only a few people who actually talked about specific numerical simulation operations. But later, as Chang Haonan expanded the content many times, the course was eventually expanded into a giant course that lasted for two long semesters and had up to 9 standard class hours per week. The main content has also been upgraded from just allowing students to understand and contact the finite element method to a one-stop solution from basic theory to practical application. ?After the TORC Multiphysics software entered the development stage, he even added a lot of multi-physics simulations, new meshing methods and other related content into it. As for the potential teaching targets, it has also expanded from just the School of Aeronautical Science and Engineering to all science and engineering majors in Beijing Hang University. According to Chang Haonan, we strive to allow students who have completed this course and understood it to directly enter the practical application stage. At the end of the 1990s, the importance of computers in various disciplines had not become common sense as it would have been more than 20 years later. You must know that every year, there are many candidates from foreign schools who enter Beijing Airlines for graduate school with relatively ordinary first-level academic qualifications. They have no opportunity to experience it intuitively at the undergraduate level. So numerical simulation, especially numerical simulation in engineering, is the most important thing for them to establish the first impression of this thing is awesome. ?Of course, since there is only one teacher, Liu Hongbo, in the first year, he can only teach one major for the time being. Although colleges and universities have been expanding enrollment during this period, college students are still relatively expensive in general. In addition, the employment environment of schools like Beijing Airlines is good, so the entire college does not admit many graduate students in each session. Chang Haonan doesnt know the specific number of people this year, but he estimates that there will be about a few dozen people. In university courses, it is not an exaggeration for a teacher to teach to 200 people, so this number of students is more than enough. ? On the day of class, he came a little early. He was originally going to review the content with Liu Hongbo, but the latter hadn''t arrived yet, so he found a seat not far behind him to sit down. This was actually Chang Haonans habit in his previous life. Whether you are in the first row or the last row, you are likely to receive "key attention." Only the middle is the most inconspicuous. As a result, after waiting, Liu Hongbo didnt come, and more and more students came to class around him. With about ten minutes left before class started, the room was almost overcrowded by the crowd inside. Not to mention the seats, there were quite a few people sitting on the floor between the podium and the first row of desks. ?The School of Aeronautical Science and Engineering alone obviously cannot gather so many people, and there must be many other schools joining in the fun. And many second- and third-year graduate students should also be here. Because Chang Haonan saw Yao Mengna in the first row in front, closest to the podium. At the end of the 1990s, there was no academic administration system for course selection, so they really didnt know about this course that they had never known before. SighI havent been in class for so long that I have forgotten that university teachers are used to stepping on the bell to enter the classroom ?Chang Haonan couldn''t help but sigh, feeling that he had been out of student life for too long. Nowadays, no matter how boring he is, he doesnt have a smartphone to use. The laptop he brings with him is just for putting PPT and calculation examples in class. Because there is no wireless network, it is impossible to connect to the supercomputing center... In short, in the end, he was bored and could only open the book in his hand that he had read several times before it was published, and review it again. Just as he quickly opened the book to the chapter "Construction and Calculation of Isoparametric Finite Element Matrix", he suddenly felt someone next to him tap his shoulder lightly: Classmate, this course must be quite difficult, right? ?This question made Chang Haonan not sure how to answer it for a while He doesnt know whether the textbook he wrote is difficult or not. After struggling for a while, I had to give a one-size-fits-all answer: I think its okay. If you listen to the lectures carefully, read more books, and go to the computer room to practice more, it shouldnt be difficult. To be honest, I have never taken a class with so much content, 288 class hours. I heard from classmates who went to some schools that their graduate courses only lasted about 300 class hours in total In the midst of awkward chats, Liu Hongbo finally walked into the classroom 5 minutes before class with a thermos cup in hand. ?The moment he pushed the door open, he was obviously shocked by the "grand occasion" inside. Liu Hongbo, who was also taking this course for the first time and was not very confident, even showed a somewhat overwhelmed expression on the podium for the first time. ?So after standing on the podium, he first looked around the classroom twice. It wasnt until I saw Chang Haonan sitting in the middle row with a computer on the table that I finally breathed a sigh of relief. ??Its just that in the eyes of his classmates who didnt know what he meant, his actions were definitely the style of a big shot. What''s more, the cover of my extremely thick textbook still has the name of Teacher Liu Hongbo written on it. Although it is ranked second. But its the editor after all, isnt it? As a result, the atmosphere in the entire classroom quickly became quiet. Ahem Liu Hongbo cleared his throat: "I am very happy to teach you this course on numerical simulation principles and methods. You are very lucky, and I am also very lucky, because I dare not say it internationally, but this is definitely the first time that a university in China has offered a similar course. We will also be the first batch of students to systematically study numerical simulation methods..." "However, today''s first lesson is not for me to teach you. You should have noticed when you received the textbook. I am one of the editors of this textbook, but there is another one in front of me. Bit." At this point, he has already raised the expectations of the students below. After all, from this point of view, the editor-in-chief named Chang Haonan, who is ranked first, is probably a very senior old professor. Even academicians. ?However, what Liu Hongbo said next was beyond everyones expectations: The real editor-in-chief of this book happens to be sitting among you today, so this class will be taught by my junior brother and your classmate, Chang Haonan! As soon as he finished speaking, the classroom exploded. "ah?" "seriously?" Is this the difference between people? The textbook I used when I was a graduate student was actually written by my graduate student? I seem to have heard this name somewhere before Chinese Youth May 4th Medal? Are you one of the winners? When Chang Haonan stood up and walked to the podium with his computer, the person who was chatting with him just now almost jumped up from his seat: I really believe his nonsense, its not that difficult. Of course its not difficult for him as the author (End of this chapter) Chapter 424 I am the standard Chapter 424 I am the standard It wasnt until Chang Haonan stepped onto the podium and connected his laptop to the projector that the turmoil caused by him in the entire classroom gradually subsided. ?The environment is even quieter than after Liu Hongbo came in. Because everyone is eagerly waiting to see what this textbook author, who is about the same age as themselves, can tell. When writing this textbook, Chang Haonan included many basic mathematical concepts such as vectors, matrices, and tensors in the previous chapters because he considered the need for undergraduate teaching in the future, which is basically equivalent to The content of linear algebra is retold in general. ?However, since it is a postgraduate course now, it is definitely not possible to start from this basic part, but directly to the basic concepts of engineering analysis and the introduction to the finite element method. ?Of course, the first lesson, as usual, will not cover too much complicated content. I am very happy to be here and give you this first course on the principles and methods of numerical simulation. ?Chang Haonan did not start the intellectual content immediately, but made a slightly light-hearted joke: I remember when I was in high school, our math teacher often said to us, Do you talk or do I talk? How about you come up and talk?, I guess your middle school teachers also said similar things. But now, I seem to have really come up... A cold joke that only students and teachers understood made the atmosphere in the whole classroom suddenly cheerful. Even Liu Hongbo, who had sat next to the podium and took out a small notebook to take notes, also showed a knowing smile. ?Although university teachers rarely care whether students attend classes, classroom discipline must still be maintained. Hence, he often used similar expressions. Unexpectedly, not only did a student come up to speak, but he also personally invited him to come up. ?However, this paragraph will be the last tenderness that the entire classroom will experience in the next two and a half hours. Chang Haonan did consider step-by-step when designing the structure of the textbook, but this does not mean that he will reduce the density of knowledge. In fact, even if a terrifying 288 class hours have been arranged, if Chang Haonan really wants to evaluate it, the progress of the course is still relatively tight... "In a nutshell, the analysis of engineering systems requires us to idealize the system under study into a way that can be solved using mathematical means. In the not-so-complex practical problems that you may come into contact with during the postgraduate stage, we can Commonly used models are divided into two categories: lumped parameter models and continuum mechanics models, which correspond to what we often call discrete systems and continuous systems respectively..." ?Chang Haonan quickly wrote on the blackboard while speaking. PPT can indeed make teaching easier, but at least when Chang Haonan was a student, he still felt that writing on the blackboard could not be replaced to a large extent, at least for the classroom. Because the action of turning the pages of PPT is too simple for the lecturer on the stage, it is easy for people to ignore the students'' receptive ability. The effect of the teacher writing the exact same content on the blackboard is generally better than just showing the PPT once. ??As the chalk in Chang Haonan''s hand gradually became shorter, the content on the blackboard became richer and richer. Before starting to solve a practical problem, the solution process can be divided into the following steps. The first is the idealization of the system, the second is the balance of the units, the third is the assembly of the units, and finally the corresponding calculations..." This idea is invariable in numerical simulation, especially in basic finite element method numerical simulation. Next, we will use a simple example and a complex example to demonstrate. First, lets look at this steady-state problem There are three rigid cars U1, U2, and U3 on the horizontal plane. Each car is connected through a linear spring system. Calculate the displacement of each car and the force in the spring under the following four load states... It is actually very easy to make simple things complicated in lectures so that everyone does not realize how serious they are. All you need to do is use jumping ideas and add all kinds of new concepts. But now Chang Haonan has long lost the motivation to show off his skills in front of these peers. The theoretical part of this course does require some talent, but at least 80% of the students in this classroom are from engineering majors. ?After all, this is not an era where every undergraduate graduate will be able to do CFD simulations more than 20 years later. From a practical point of view, most of them just need to be able to use this tool well, which is already very difficult. For him, the most important thing is to introduce the content in a simple and in-depth way. It is best to allow everyone who takes this class to complete the basic introduction in two and a half hours, or at least realize the role of numerical simulation in engineering design. significance. Therefore, although his pace is very fast from the beginning, for students who can go to Beijing Hang University for graduate school, as long as their minds keep following his writing on the blackboard, there will not be any insurmountable understanding gap. Soon, the first steady-state problem has been explained clearly. Following that, Chang Haonan turned the PPT to the next page and showed a smile: Next, lets try a slightly more complex problem. "This is a real practical problem, so if you can''t understand it or can''t follow the idea, that''s normal. Don''t be discouraged. This is just the first class. You just need to know that there is another way to face this kind of problem. A solution is enough. Chang Haonan''s own projects are basically highly confidential, so it is difficult to teach them directly in class, so he directly "borrowed" a problem on the aeroelastic response and vibration load calculation of wind turbine blades from Fang Zhen. Hearing what he said, the students who had just breathed a sigh of relief suddenly became nervous again. The non-cyclic exponential function is expressed as \''(S)=4/Mexp(-S/T)=4/Mexp(-t/K1T1) Wherein the characteristic constant T1-c/a, a is the local sound speed, the factor K1=0.75/[(1-M)+Ц^2M^2(A1b1+A2b2)]???? After all, it is from the steady-state problem of an almost ideal model to the graduation topic of Fang Zhen, a fourth-year doctoral student. It is still not difficult for these newcomers who have just entered their postgraduate career. In addition, Chang Haonans statement just now that its okay if you cant keep up did make some people less focused at this time than before. Here I go, I can still understand a little bit at the front, but the back feels almost like a book from heaven ??The buddy who just chatted up Chang Haonan first had a pen in his hand and mumbled in a low voice with a blank look on his face. "Okay, I felt like it was a book from heaven from the beginning..." Narrator Another person rolled his eyes at him. I can only say that he is worthy of being a textbook editor. Its so scary..." The third person also sighed. Have you noticed that Teacher Changs book is still there, and I didnt take it with me at all Finally someone found a bright spot. The people around him almost all turned their heads to look at where Chang Haonan was sitting just now. Sure enough, a textbook was placed there. In other words, those blackboard writings just now were all written by him without any reference materials... "As expected of a textbook editor, it''s so scary..." Another person also made the same exclamation. ?However, among the majority of people who are confused, there are some great minds who can follow the whole process. Although I havent learned many intellectual things yet, so the principles of some of the steps themselves may not be clear, but it is quite difficult to understand the overall process. ?When Chang Haonan finally showed the calculated aerodynamic/elastic comprehensive motion equation, in addition to applause and exclamation, one person in the audience raised his hand. The student who raised his hand, do you have any questions? ?The person standing up was a rather thin boy wearing glasses that were almost half the size of his face: Before uh, six pages of PPT, the part that calculates the dynamic stall model corrections. Chang Haonan was a little surprised that someone could ask such a detailed question at this point, so he quickly turned the PPT to the page the other person mentioned. "Here you set the starting point of the analysis at the blade root, and set an equivalent angle of attack and an equivalent separation point. I don''t understand why you do this..." ?Chang Haonan turned around, glanced at the curtain, touched his chin and thought for a moment. There are several students below who have also understood a lot and have begun to guess. It should be to reduce the amount of calculation in the next step..." I think its because it can make the equations written more symmetrical in form. I know many geniuses have this habit. Is this... ?Chang Haonan turned back and stood in front of the podium: Actually, there is no reason. Theoretically speaking, you dont have to set them at all. Its just that I randomly set two similar dimensionless quantities once before. ) ?Some people below have already breathed a sigh of relief, thinking that they have thought too much. But then Chang Haonan continued: Because it was actually the first project in the world to use this method to do aeroelastic modeling and analysis, so they all followed my method step by step and continued to do it, and now it has become a standard..." The whole place fell silent for a moment. (End of this chapter) Chapter 425 I cant continue this class. Chapter 425 I cant continue this lesson Actually, this is nothing. I just had the first-mover advantage of starting early. Looking at the stunned expressions of the students below, Chang Haonan accurately threw the remaining piece of chalk back into the chalk box: This is like a typo. If Mr. Lu Xun, the pioneer of vernacular writing, wrote it, it could be called Tongjia. But if you and I wrote it, it could only be called a typo. It was a small joke, and the effect was immediate, almost instantly relaxing the atmosphere in the classroom that had just become almost solidified. "This class has been taught for more than two hours. We did not take a break in the middle. Mainly for the sake of continuity of content, and of course to make it easier for everyone to go to the cafeteria to grab food. We ended get out of class 20 minutes early today, and there are still about ten minutes left. You can review what you just said. It was only then that the students sitting below realized that they had been listening to the lecture for such a long time. Liu Hongbo, who had been sitting on the edge of the podium, was even more shocked. ?About a year ago, he also took the opportunity of Du Yishans research group meeting to listen to Chang Haonans lecture on CFD analysis. The latter had already demonstrated a very organized language expression level at that time. ? Its just that the audience that time was basically graduate students and even college professors who already had certain experience, and the content introduced by them was mainly methods, skills and personal experience. ??But this time, when almost half of the content is mathematical physics theory, it can still maintain a high-intensity and high-level narration for more than two hours, which is quite extraordinary. You must know that teaching is a skill that has little to do with scientific research or even writing books. ?The teaching level of many academic experts or textbook authors is quite average, or even very bad. ?Primary and middle school teachers have systematic training and the threshold for teacher qualification certificates before taking up their posts. Even so, they still encounter many teachers who only follow the instructions. Let alone the university level. ??Although everyone hates teachers who only read PPT in class. But one thing that must be realized is that PPT actually raises the lower limit of college classes. Because before this thing appeared, this kind of teacher would read directly from the textbook in class... Even some students are asked to take turns reading. In short, it is even more outrageous. In this context, Liu Hongbo has always felt that he is already a very serious and high-level university professor. Scientific research ability is highly related to IQ. Liu Hongbo has known for a long time that he is not a talented player, so although he has been repeatedly beaten by his junior brothers and sisters, he has actually become accustomed to it. But teaching level mainly relies on experience, and too high a talent will become a debuff in this regard - just like Jordan cannot be an NBA coach, and his level as a boss is very poor. However, today, he was completely outclassed again. This makes him somewhat emo. The lesson just now did not actually involve any advanced knowledge. He completely mastered all the content, and even wrote a considerable part of it himself word for word. Including the wind turbine blade design that was used as a final example, he also led his students on several similar projects After adapting to Chang Haonan''s working methods, many doctoral students who could only work under his leadership before can now work independently, so the efficiency of the entire research group is more than a little bit higher than in the past. But if you really want to talk about it, it will never be so smooth. It is even more impossible for the vast majority of students below to maintain high concentration for two hours. Thats outrageous Liu Hongbo closed the textbooks and notebooks in front of him, leaned back in his chair, unscrewed the thermos cup and took a drink of water. I dont know whether he was commenting on the class just now or Chang Haonan who was packing his things on the podium. Although Chang Haonan was asking the students to review what they just said, under this situation, everyone''s focus obviously shifted from the textbooks and notes to himself. Basically, starting from middle school, young teachers will become the object of gossip among their classmates. Let alone university and postgraduate studies. ??Its just that at this level, the truly young ones are often teaching assistants. And Chang Haonan is no longer as simple as being young. ?The people sitting below are basically the same age. ?This even made everyone wonder what to call him for a while. Call by name directly? Seems a bit disrespectful. But if you call me teacher. ?That person is a genuine new graduate student... ?However, after a brief silence, curiosity finally took over. Teacher Chang, can you tell me about your undergraduate days? Soon the first bold one took the initiative. "Just...call me teacher. Are the seniority a bit confusing?" As soon as the person who asked the question finished speaking, someone next to him questioned in a low voice. The result was a quick response: "What are you talking about? You didn''t pay attention to the class when I saw you. Didn''t Teacher Liu Hongbo say it at the beginning? Teacher Chang is his junior fellow student. Although he is in the same class as us, it is not a loss to be called a teacher..." ???????That''s right. ?This explanation quickly helped people nearby to exonerate themselves. ?Various questions related to Chang Haonan came up one after another: Teacher Chang, what projects have you done before? Teacher Chang, can you teach us some methods to quickly get started with scientific research? When I was doing my final project before, I felt that scientific research was so difficult ?Of course, in addition to these normal problems, there are also more extreme ones. Teacher Chang, do you have a girlfriend? Ahem Liu Hongbo, who was drinking tea, almost spat out a mouthful of water. ??He subconsciously looked at Yao Mengna, who was sitting in the first row not far away, and found that the latter had frowned and looked in the direction where the question was asked... Fortunately, time passed very quickly. After Chang Haonan answered a few questions that were barely related to scientific research, it was already the end of get out of class as promised. ?He quickly returned to where he was sitting just now, picked up the textbook still on the table and ran away quickly... This lesson will definitely not happen again in the future. As for grades, of course it wont be a problem. Few graduate courses require examinations. ??And when it comes to fractions, to be honest, it doesnt depend on how much the teacher fills in at the end. ?Given Chang Haonans status as the God of Wealth + Leader of Beijing Hang University, if anyone dares not to fill in a high score, he may be visited by Tang Lintian the next day. ?After returning to the supercomputing center as if running for their lives, Chang Haonan found Yang Huimei at the door waiting for him eagerly. ?The latter has fully adapted to the marketing work of Torch Company and enjoys it. On the one hand, the monthly income here is an order of magnitude higher than that of a professor at Beijing Airlines. On the other hand, it is also a more important point. For her who has been engaged in industrial trade for half her life, the fact that China can one day occupy an absolutely dominant position in business with Europe is definitely something that she could not even dream of before. So just looking at the politely worded emails sent to the company mailbox in various languages ??every day makes her feel much better. Professor Yang? ?Chang Haonan opened the office door and motioned for the other party to come in together. Mr. Chang, there is an urgent matter in Jinling that needs you to confirm. I just called you many times but didnt get through, so I came over quickly. ??Yang Huimei put her bag on the assistant hand of the sofa, then came to sit down in front of the desk. . I was in class just now and my phone was muted. Chang Haonan took out his mobile phone and saw a dozen missed calls on it. Tell me specifically, what is it? "ah?" ?The other party exclaimed in disbelief: Do you still need to go to class? ??Although Yang Huimei is not from a science and engineering background, she has been exposed to it for a long time and knows what Chang Haonan''s current status is in the academic world. Even if he has just entered the Ph.D. program, who dares to ask him to go to class? Its not about listening to lectures, its about giving lectures to others. Chang Haonan had no choice but to add one more sentence. Ohthats more like it. ?Yang Huimei breathed a sigh of relief, and then introduced the whole story to Chang Haonan. Jinling Automobile Company sent a letter saying that Fiat Group hopes to establish a joint venture with them. But what does this have to do with us? Shouldnt we go to the Ministry of Machinery Industry? ?Chang Haonan took out his laptop and put it on the desktop again, and asked with some confusion. Because this joint venture also includes an automotive research institute jointly established by both parties, the other party asked us, in this case, can the research institute use our authorized TORC Multiphysics software? (End of this chapter) Chapter 426 Jinling Ferrari R&D Center Chapter 426 Jinling-Ferrari R&D Center Is there such a thing? ?Chang Haonan was just about to turn on the computer, but the movement of his hand stopped in mid-air. Fiat, the name itself is probably not famous in China. If you are not interested in cars, you may have never heard of it. But Fiat Group has many well-known car brands. ?For example, Maserati, Alfa Romeo, Ferrari. ??Of course there are also later Chrysler, Jeep, Dodge, etc. They all have one common characteristic. That is, regardless of whether they are high or low, the sales in China are very poor. At least in the past timeline. ??If it can be said that the Korean and French systems are no longer at their peak after their glory days. ?So it means Its funny, Chinas passenger car market has never had any serious problems. There are only two short-lived models, which can barely make a splash. ??But tool carts like Iveco have always been selling well. Of course these are all things for later. ?At this point in time in the late 1990s, when Italians look at Iveco, which is almost popular all over the country, they definitely have reason to have illusions about the future of their own passenger cars in China. ?In this case, it is logical to find our old friend Jinling Automobile Company. ??Compared to the previous life, it is only two years earlier, so it is not a big deal. ?What really surprised Chang Haonan was the jointly established automotive research institute. This is 1997, not 2023. Let alone Italian cars, even industrial waste like Lada can be sold to China in large quantities. ?Havent you bought one without seeing Wu Yifan? Which foreign brand will come over to cooperate with China in car research? To put it bluntly, if you take the technology from the previous generation or even the previous generations and replace it with a new shell, it will be a big hit, how can you cooperate with others? ?Chang Haonan is not yet confident enough to feel that the impact of the technologies he has developed can be as great as this. Technology in the aviation industry will indeed spread downward to other industries, but this process takes time. ?Especially these days, cars have almost no serious electrification equipment, and they hardly consider aerodynamic issues such as wind resistance and wind noise. The two areas that Chang Haonan is best at cannot enter the field of automobile research and development at all. At least it cannot enter the research and development field of household passenger cars. ?If I have to say it, it may be useful in the structural design of the entire vehicle. But this is still a segment that is more focused on commercial vehicles. After all, in the 1990s, no one was using hot-formed steel and die-cast bodies on family cars. Therefore, after a while, Chang Haonan finally nodded and replied: As long as the research institute is opened in China, it doesnt matter if you use the software, not to mention that Fiat is also a trial user who has passed the application. In fact, there is generally no need to be so careful about this kind of problem. After all, the TORCH Multiphysics obtained by Jinling Automobile is only a publicly released large cup rather than a super large cup only for some users. Its just that the situation of Torch Company is quite special, and it is obviously an enterprise that is under the special attention above. ?The other party may be afraid that he will be hit by an iron fist if he messes around, so he wants to be foolproof. Then I will reply to you when I get back... ? Yang Huimei, who received a positive answer, was about to stand up, but was stopped by Chang Haonan who was a little curious: Did they say what research areas this automotive research institute is specifically responsible for? In the previous list of applicants for software trial, Fiat Group was one of the only foreign commercial users. ? Its just that because this involves some more complex legal issues, the trial version software applied for in non-mainland areas has not yet been shipped. But it seems that the other party is already a little impatient. Logically speaking, we shouldnt be in such a hurry. If Fiat really had such enthusiasm for the research and development of new cars, it would have left the Chinese market twice, so that the alliance formed later was called the "Alliance of the Losers." Thats not true. The other party just sent us a letter explaining the situation, but if you want to know more specifically, they also left their contact information at the end of the letter. ?Later that day, Jinling. General Manager Li Liangyis office was knocked open, and his secretary strode in from the outside. Mr. Li, I just received a call from Manager Yang from Torch Company, saying that as long as the jointly established R&D center is set up in China, there will be no problem. A formal reply letter and authorization document will be sent later. "That''s good. You can arrange a time and let the person responsible for external cooperation start discussing other cooperation details with the people at Fiat." ?Li Liangyi raised his head, took off his glasses and put them on the table. In fact, before sending the letter, he expected that there was a high probability that it would be approved. However, although the other party was not large in scale, its background was too strong, so he added such a procedure just to be safe. It was also delayed by nearly a week. Thinking of this, he warned his secretary again: Tell Xiao Yu to improve some efficiency there. The domestic passenger car market is changing day by day. If we can sell the car a day earlier, we can make tens or even millions more profits! Upon hearing this, the secretary took out another document from his briefcase and placed it on Li Liangyis desk: In fact, Manager Yu has been communicating informally with Fiat representatives during this period. A preliminary agreement of intent has been formed. Please take a look. "oh?" Although contacting each other privately falls into a gray area to some extent, these days everyone basically emphasizes letting themselves go, and many express regulations are not strictly enforced, let alone such marginalia. So the latter was not angry, he just put on his glasses again and started to read them one by one. As almost the last mainstream car series to enter the Chinese market, the sincerity shown by the Italians this time is quite sufficient. ?As far as Jinling Fiat is a joint venture between the two parties, in addition to the Fiat brand, Maserati, a high-end luxury brand, and Alfa Romeo, a sports brand, are also included in the contract. ?Although the latter two are only assembled domestically, this is enough for Li Liangyi to pay attention to. After all, although several car companies such as Volkswagen, Jeep, and Peugeot have already entered the country in the form of joint ventures, when it comes to luxury brands in joint ventures, there is only one Audi. ??It is also assembled in one piece. As for the automobile research institute, at first glance, it seems to be incidental. Because it is different from joint venture production and technology introduction, the partner of this research institute is Ferrari, which is also owned by Fiat. ?Its not that Li Liangyi is belittling himself and building a supercar. Jinling Motors currently has neither the ability nor the will. Fiat specifically requested that the research institute be operated independently from the joint venture company and its name must be called Jinling Ferrari R&D Center. This is just a play on words, because according to the current joint venture regulations, Jinling Automobile must be in the front. But if it were called Jinling Automobile-Ferrari R&D Center, the latter probably felt that he could not afford to disgrace that person. So omitting the word "car" can make Jinling sound like just a place name. ?Li Liangyi has no objection to this. He is happy to let the Italians take advantage of this in exchange for some more practical benefits. For example, the three major parts production lines have a higher proportion of local production. As for the other one, its more interesting. The Ferrari F1 team is willing to set aside a sponsor advertising space on the front wing, rear wing or side of the sidepods of their cars starting from 1998. As long as it does not violate the regulations, Jinling Automobile can paint anything on it. Li Liangyi frowned when he saw this. He is not interested in racing, but after all, he is the boss of an automobile group, so F1 still knows about it. But he knew it would not work. There was no F1 broadcast in China, and it was impossible for Jinling Motors to export it to Europe in a short time. So this advertising space that was supposed to be worth some money was meaningless to him. Xiao Liu, please contact Torch Company again. He put down the documents in his hand and said to his secretary: Ask them if they are interested in advertising in Europe? (End of this chapter) Chapter 427 The key to opening the European market Chapter 427 The key to opening the European market ??When Chang Haonan finished his day''s work and was about to pack up and go home, he saw Yang Huimei again at the door of the office. Professor Yang? ??He was a little surprised to see the other person for the second time in one day. Since the office location of Torch Company has not yet been determined, although the two are in the same Beijing Hang University, their offices are not close to each other. What''s more, in addition to her work here, Yang Huimei also has a teaching position, so if Its nothing major, usually we just call or send someone to convey the message on our behalf. Jinling Motors faxed us a document asking us if we need to advertise in Europe. ??Yang Huimei took out a few stacked papers from her bag and handed them to Chang Haonan: I received it just in time before I got off work. I sent it over on the way. You can see how to reply. I will get back to them after I get to work tomorrow. Advertising in Europe? The latter was stunned for a moment. ? He ??does have the idea of ????entering the international market with TORCMultiphysics software, but it is too early to start large-scale advertising. On the one hand, even the initial user reputation and localization work of related manual files have not been completed. On the other hand, the company is not that wealthy now. ?The little money in the account is enough to keep in the country, but it can hardly be used in foreign currency. What''s more, how does this matter have anything to do with Jinling Automobile? Out of curiosity, Chang Haonan took the fax from Yang Huimei and turned back to the office. Compared to the formal official letter in the morning, this fax seemed much more casual in terms of wording and format. In many places, Chang Haonan''s name is written directly instead of Torch Company. It even feels a bit like a personal letter between the CEOs of two companies. Logically speaking, established state-owned enterprises like Jinling Motors should not make this kind of mistake. ?However, after reading the letter to the end, Chang Haonan quickly understood the difference: Ill give it a try Italians are really willing to give it up He raised his head again and leaned back on the back of the office chair. ??In the morning, I asked whether the software could be used in the joint venture, so that if something happened in the future, I could take the blame, so naturally I had to follow the most formal process, and even send the original document in an official letter. But this time, its about building relationships. Its not just Jinling Motors that is trying to get closer to Torch Company. It is still Li Liangyi who is trying to close the relationship with Chang Haonan. ?Using the company''s resources to give yourself a favor is considered an old-fashioned thing. ?Of course, Chang Haonan must still seize this opportunity: You can request this advertising space, but dont be too anxious. You can reply to them tomorrow afternoon or the day after tomorrow. ?However, he also knows that he cannot owe a debt of gratitude, so he has to pay something back: "Also, tell them that we don''t need this advertising space in vain. We can sign a three-party sponsorship contract. After TORCH Multiphysics is officially launched, we will give them some discounts on the usage price, and allow them to send a few technical personnel to our company every year. Further education. ?After finishing the lecture this morning, Chang Haonan also realized that his software was okay for technical staff in universities and research institutes, but it might indeed be a bit out of scope for Chinese enterprise users at the turn of the century. ??Although both undergraduate and graduate students have been expanding since the beginning of the new century, the average level of students is actually improving due to the rapid advancement of overall scientific and technological strength. Around 2000, one could even graduate with a PhD using Fluent to do a very simple optimization of equipment components for an enterprise. ? And in 2020, a master''s thesis of this level has to rely on the tutor''s reputation to pass it. So Chang Haonan has already begun to consider the issue of talent training. After all, he relies on both the Institute of Computing Technology of the Academy of Sciences and Beijing Hang University, so there is no shortage of relevant resources. And industry-university-research cooperation will be a very important trend in the next few years. However, Yang Huimei still frowned after hearing this. After all, she has been responsible for foreign trade negotiations for a long time and knows more about foreign affairs than ordinary people: Mr. Chang, are the conditions we offered a bit too high? The other party didnt mention the three-party contract either. They may just be using this opportunity as a favor. Although the F1 project is very popular in Europe, few people in China pay attention to it, and Jinling Motors is unlikely to enter the European market in a short time. For them, this is a useless project. Chang Haonan waved his hand: Although our company has just started and is small in scale, we still need to do a good job in formalization, otherwise it will be too troublesome if something goes wrong in the future. This advertising space is indeed of little value to them, but things like software licensing and technical staff training will not incur any additional costs for us. Everyone is equal exchange with each other. Besides, I bet. ?Chang Haonan stretched out his fingers and tapped the table gently: This is the key for our company to enter the European market. He is completely taking advantage of being a reborn person. ??Although Ferrari''s performance in the past two seasons has been like a circus, they will soon win six consecutive team championships and five consecutive driver championships, becoming the most successful F1 team in history. ?At that time, an unlimited advertising space, even if it does not occupy the most dominant position like Marlboro or Shell, is definitely worth a lot. ??Moreover, this is not the most important thing. ?The fax just now made Chang Haonan roughly guess the reason why Fiat is so eager to cooperate in establishing an automotive research institute. And it was also mentioned that the official name of this institution will be Jinling Ferrari Research Center. Instead of Fiat. After making Todt the team manager, he even excluded Montezemolo, the head of Fiat and Ferrari, from the team''s operational management. This was one of the main reasons why the Prancing Horse dynasty was later established. . ??Since so many F1-related contents can be added to the cooperation agreement, it is already obvious what this institute will study. ??Although the budget cap and related restrictions on wind tunnel equipment had not yet been passed in the late 1990s, even the major teams had a limited amount of funds that they could allocate. Whats more, there are also time window restrictions. So having a high-performance aerodynamics and structural mechanics calculation software will definitely get twice the result with half the effort for the development of new cars. ?This time its Ferrari, but what about next? ?Which team is not jealous of the Prancing Horse Dynasty? Even in this timeline, Schumacher still hit Villeneuve on a whim and was deducted all points, took unnecessary risks and crashed himself into a tricycle at Spa, or hit his leg at Silverstone. Interruption leads to withdrawal from the championship... ?It was time to win the constructor championship in 1999. You know, Ferrari hasn''t won the constructor''s championship in 14 years and the driver''s championship in 18 years. As a result, a new R&D tool was used in the 1998 season, and the team won the championship in the 1999 season. What does it mean to get immediate results? ?Who dares to say that there is no connection between these two things? There are no secrets in the paddock. ?Aerodynamics masters like Rory Byrne or Adrian Newey are not available, but the tools used by Ferrari are always available. What''s more, Jean Todt will also be the president of the International Automobile Federation (FIA) in the future. ??If TORCHMultiphysics can be directly identified as the FIA''s official CFD tool through this relationship, then this demonstration effect... Chang Haonan couldn''t hold back his lips just thinking about it. ?Looking at the confident expression on the face of her boss in front of her, and considering the other partys brilliant record over the past year, Yang Huimei decisively changed her stance: Okay, its up to you, Ill get back to them tomorrow afternoon. (End of this chapter) Chapter 428 The aviation industry is gradually taking shape Chapter 428 The aviation industry is gradually taking shape The European market is, after all, a long-term plan. The most important thing for Chang Haonan right now is to handle the several projects at hand. Fortunately, for him now, helping Liang Shaoxiu complete the overall design of the Air Police 200 is no longer a particularly difficult task. Although it has been less than a month since the Air Police 200 project was formally established, the aerodynamic and structural design of this aircraft actually started after Chang Haonan first proposed the plan of transporting an 8 platform with a T-shaped antenna. At that time, Liang Shaoxiu led the factory-affiliated design office of Factory 182 to promote the project. ?Many structural and balance issues have been solved, and what really remains are some key issues that are difficult to solve using traditional tools and methods. For example, calculation details involving antennas and turboprop engines. ?These parts are typical dirty models, that is, models with irregular surface shapes and a large number of bends that make it difficult to model parametrically. ?But this is exactly what Chang Haonan and TORCHMultiphysics are good at. In terms of aerodynamic design alone, the T-shaped antenna used is a relatively simple type. The damage to the aerodynamics of the original aircraft, especially the more difficult-to-handle longitudinal stability, is far less than that of a disc-shaped antenna, and even It is also smaller than a conformal array antenna like Falcon to some extent. The only hidden danger may be that the larger antenna area along the axis of the aircraft body, and the resulting heightened vertical tail and increased ventral fins, cause the entire aircraft to be more affected by crosswinds. In fact, this failure to fundamentally solve the problem may even cause the T-shaped antenna to be unable to be installed on a small platform (because the large area is the advantage of the T-shaped antenna). Fortunately, although the Yun-8 platform looks terrible everywhere from Chang Haonan''s perspective, its 35-ton empty weight is definitely enough. After specially increasing the area of ??the vertical tail action surface, this antenna looks very exaggerated. In the end, it only resulted in the air police 200''s wind requirements being reduced by about 2m/s during takeoff and landing. Approximately three-quarters wind strength. Quite acceptable. ?In the supercomputer operation room of Beihang University, Wang Xiaomo stood next to Chang Haonan, looking at the 3D model on the screen in front of him and the simulation calculation results flashing line by line, and said with some emotion: Even a year ago, it was hard for me to imagine that comrades in the aviation system could come up with a new aircraft in less than half a year... Well... on the one hand, the platform itself is ready-made, and on the other hand, the antenna provided by you is more friendly to our work, so the design is not difficult. Chang Haonan said and hit the Enter key to save the data and model together. Its not that he was complimenting the other person. The high-performance radar design and packaging solution provided by Wang Xiaomo ensures that the antenna itself is relatively lightweight, which indeed saves a lot of structural design work for the aging Y8 platform. Although the Y-8 Category III platform has a maximum load capacity of 20 tons on paper, any transport aircraft, especially tactical transport aircraft and passenger aircraft, are mainly designed to consider loading cargo evenly throughout the cargo warehouse, rather than large items. Concentrated load - that is a problem that only An124/C5 or at least An22 will consider. If the weight of the antenna itself is too large, additional reinforcements will be needed to the structure of the Yun-8. In that case, if a single move affects the whole body, there will be too many problems involved. Even Chang Haonan cannot do it in a short time. solve. The current transformation mainly only needs to consider aerodynamic changes, and the difficulty is much lower. This is the beginning of a virtuous cycle. It is true that the amount of water a barrel can hold depends on the length of the shortest board. But if the lengths of the other boards are okay or even slightly exceeded, then you can still pack more by tilting the barrel in a direction without short boards. ?The Air Police 200 in front of us is almost completely different from the previous one. It uses the advantages of radar antenna design to make up for the shortcomings of the Y-8 as a carrier aircraft to a certain extent. ?Although it is definitely not as good as directly changing to a reliable platform, it is not bad at the moment when you are in a hurry to use it. ?Liang Shaoxiu, standing behind Chang Haonan, pushed up his glasses: Its a regular job after all... If we leave it to our factory, just these few minor problems may delay it for a year or two. If the project schedule is delayed, then I will be guilty. Liang Gong, dont belittle yourself too much. ?Chang Haonan turned around and signaled to the other party to start packaging the data files, and at the same time comforted: "When it comes to engineering, it''s better to focus on a step-by-step approach. With this experience, you will become more proficient when doing other projects in the future. After all, the 182 Factory Design Office was just a small unit responsible for copying models before, and now it can gradually assume the responsibility. When it comes to design tasks, the progress is already very fast. Liang Shaoxiu sat in front of the computer and began to process the stored project files, and then sighed: Im still a little scared... "Seeing that other brother units are making rapid progress one by one, third-generation aircraft, passenger aircraft, and helicopters are becoming popular. Even Guihang, which has always been a close friend of us, recently launched a new model of trainer aircraft. A few days ago A comrade from our factory went on a business trip to build a city, and I heard that they are almost finished building the front fuselage. Chang Haonan originally didnt want to say that Guihangs trainer aircraft was also his own handiwork to some extent, but when he heard the last sentence, he almost subconsciously said: They are progressing so fast? You must know that Sun Huizhong only went back last month. Of course he knows that in the last life, Guihang also set a speed record in the process of producing FTC2000G - 9 months from design to first flight, and 4 months from start of construction to first flight. The progress of prototype production is broadcast live on the public account almost every day. But when you really feel it intuitively, its quite shocking. This is a new aircraft. ??And thats Guihang, Yunma Factory. The worst conditions in the national aviation system. It''s hard to say it''s a miracle that the front fuselage is almost off the production line in one month. Its really fast... Liang Shaoxiu just said half a sentence before he realized: Wait a minute, Chang Gong, do you also know about this training aircraft project? "Well" This question made Chang Haonan speechless for a moment: It would be better to say that I took the lead in entrusting this model to them. It is nominally a technical verification and project support for Project No. 10. ?Wang Xiaomo and Liang Shaoxiu looked at Chang Haonan almost at the same time, showing uncomfortable expressions on their faces. How come you are everywhere... ?After a while, Liang Shaoxiu opened his mouth again and explained: "I heard that the Yunma Factory received an allocation and paid the salary for the first half of the year, and there was no mention of being laid off, so all the employees took the initiative to work three shifts, and had food and accommodation in the factory. They had no days. Worked day and night for a month. In addition, Qian Province also intends to support this provinces only high-end manufacturing industry, so the provincial party committee personally takes charge to provide logistical support. In short, the battle is quite exaggerated..." Its quite reasonable. After all, I am afraid of comparison in everything. ??Surrounded by the tragic situation of laying off employees, relocating entire factories, and even going bankrupt, I not only have a secure job but can even pay wages, but it would be a life-threatening situation for anyone else. ?The project files in the computer are actually not very big, but due to the file transfer speed of this era, during the time when several people were chatting, the progress bar only jumped about two spaces. There was another few minutes of silence. Finally it was Liang Shaoxiu who broke the silence: Do you think there is a chance for the Air Police 200 to build a full prototype before October 1999? Speaking of this time point, it is obvious that he has an idea. ?According to the requirements of Project 9910, the military parade does not need to be truly finalized. In fact, each military parade has a lot of equipment that is still in the prototype stage. But you must at least ensure that the technology is mature. Especially aviation units. If the ground equipment fails, we can have a backup and it is great, but it will only cost a person. If the plane fails, it will be a big deal... If you ask me, its not hopeless. Chang Haonan rubbed his chin and thought for a while, then added: I mean hopefully finalized. (End of this chapter) Chapter 429 Why are your ghosts and mine different? Chapter 429: Why are your ghosts and mine different? ?At the same time, Chang Haonan was busy working on the Air Police 200 and Turbofan 10 projects. Tehran, Mehrabad International Airport. ?An Il-76TD transport aircraft painted in a Soviet civil aviation livery that is quite strange for this era is preparing to land in a quite classic "maximum **** landing" attitude. ?This method requires the pilot to align the aircraft with the runway in a dive attitude and level the aircraft at the last moment before touchdown. A great test of courage and skill. A few minutes later, the Il-76 stopped smoothly at the end of the runway. There were already many people and two trucks there, and they had obviously been waiting for a long time. ?Yang Jin, an engineer from Factory 112, walked forward quickly with the staff behind him to prepare for unloading. The huge three-flap tail hatch slowly opens. The scene inside the cargo hold shocked Yang Jin, who saw the IL-76 for the first time. Six turbojet 14 engines airlifted from Shengjing. ??Although the turbojet 14 is an engine with a small size and weight, in order to ensure a foolproof transportation process, the 410 factory often uses very exaggerated boxes for packaging before installing the engine. The first batch of four engines were all transported by Y-8. Only two units could be transported at a time, and the cargo hold capacity was still tight. ?Several people jumped down from the huge springboard door. The leader came to Yang Jin and shook hands with him. Then he said in a slightly anxious tone: "This is the second batch of six engines. Move quickly. There will be another plane coming later." Six more engines? ?Yang Jin was a little unbelievable. As a technician from Factory 112, he is still aware of the capabilities of Factory 410, a sister unit. Only 4 units were delivered in total in the past six months. After all, the turbojet 14 model is used everywhere, and it is impossible to give it all to them. "No, there are some other aviation materials behind it, as well as radar." It wasnt until a group of people started unloading the cargo with the help of the tail crane that the other party breathed a sigh of relief and introduced himself: Comrade Yang Jin, right? My name is Han Linping, from Factory 410. Im responsible for coordinating the ghost modification project in Persia. Hello, but it wasnt always Lin the past few times Lao Lin was transferred to be responsible for the logistics support of key model projects, so I came to replace him. ?Han Linping explained. Yang Jin was stunned after hearing this. He had followed the overseas working team established by the factory to Persia six months ago and had not returned to the country since then, so he had very little information in this regard. ?However, he also knew that this was definitely not the place to discuss confidential topics, so he had no choice but to suppress his curiosity: Thats a pleasure to work with. Its a pleasure to work with. As Han Linping said, about twenty minutes later, another Il-76TD with the same painting landed in the same wild way, bringing other parts involved in the improvement project. You rented these IL-76s specifically from Lao Maozi? After unloading all the aviation materials and loading them into the truck, Yang Jin, who was somewhat out of breath, found Han Linping. These two huge aircraft really left a deep impression on him. "No, I bought a few finished aircraft from the Tashkent factory a few months ago. I didn''t have time to change the paint. The superiors considered that this could be a bit confusing, so they used them like this for the time being." ? Han Linping, who had just taken off his gloves, shook his head and looked at the IL-76 who was preparing in the distance and explained. At this moment, a Land Rover off-road vehicle stopped in front of the two of them. Get in the car first ?Yang Jin opened the car door and motioned for the other person to sit in. In fact, as a dual-use airport with a large passenger flow, Mehrabad International Airport is not suitable for undertaking such sensitive military transportation tasks. Even the Persians themselves know this and are planning to build a new Imam Khomeini International Airport. ?However, construction has just started and is far from being completed. ??The reason why I have to use this place is because the only Persian Aircraft Industry Company (IACI) that has the technical ability to maintain F4 and F14 fighter jets is right here. Even shares one of the runways with Mehrabad International Airport. If it lands somewhere else and is transported by truck, not only will it cause more noise, but there will also be other risks along the way. In the end, we can only choose to carry out transportation tasks in the evening or early morning when there is less passenger flow. Happily, after switching from Y-8 to IL-76, the number of flights required will be much less. How is our current modification progress? After looking at the rapidly regressing scenery outside the window for a while, Han Linping soon felt a little monotonous, so he turned back and asked about the project. The first two upgraded aircraft have been delivered, and now we are just waiting for you to start work on your engines. Speaking of this, Yang Jin couldn''t help but smile: Seriously, you should have come here a month earlier to hear how the Persians praised the two new engines we installed... While the two were talking, an F4 fighter jet painted in blue and gray roared and took off from another runway not far away. Here, thats one of the ones we modified. The Persians renamed it F4EC and also changed the paint. ? Lieutenant Colonel Siavash Bayani and Captain Sania Hoda were sitting in the cabin of the F4 that had just taken off, flying towards the northwest. Radar stations there reported several unusual approaches by the Turkish Air Force. Since the Persian Air Force has been troubled by the problem of aircraft readiness rate since the Iran-Iraq War, under normal circumstances, it will not respond to such actions by neighboring countries. ?Moreover, Tehran is more than 400 kilometers away from the border between the two countries, and most of the time it is simply too late. But one of the other party''s targets seemed to be particularly persistent today. It wandered near the West Azerbaijan Province several times and showed its intention to cross the border many times. ?Then you have to go and see it. ? After quickly climbing to the predetermined altitude of 12,000 meters, Lieutenant Colonel Bayani pushed the throttle valve to the bottom and opened the afterburner. The numbers on the aircraft''s airspeed indicator increased rapidly and soon exceeded the speed of sound. As an ace who has shot down Mirage F1, Su-20 and MiG-25, the 40-year-old Bayani is almost the most experienced pilot in F4 in the entire Persian Air Force. But after being transferred to TFB1 base and equipped with this new aircraft, he even began to doubt his nearly two thousand hours of flying experience in the past. Although the sea-level thrust of the turbojet 14 is about 7% lower than that of the J79, its dry weight is almost only 60% of the latter. As a result, the thrust-to-weight ratio of the entire aircraft has even increased after thrust reduction and trimming. ?But this is not a big problem. What makes him uncomfortable the most is actually the difference in feel brought about by the increase in power feedback speed. In the past, the F4 would have a very slow speed increase process after the throttle valve was activated. As a result, Bayani, who had already formed a habit, felt like he was acting like an old man in the first ten hours after boarding the plane. dementia. Always half a beat slower than the plane. ??He hasn''t felt this way since his second year at flight school. ?However, after getting familiar with the new control rules, he quickly forgot all the unpleasantness during the running-in period. ??Bayani must admit that before this, he definitely looked down on Chinese equipment. During that protracted war, both countries, whose national treasuries were increasingly empty due to huge consumption, invariably purchased a large number of weapons produced by China. But what about the experience of using it? High emotional intelligence is probably said to be relatively cost-effective. ?However, this fighter plane that was modified by the Chinese changed his mind a lot. Simply put, its great. At least when he used the J79 in the past, he would never dare to turn on the afterburner so unscrupulously. Lieutenant Colonel, the radar has detected a target with a range of 90, an altitude of 10,000, a speed of 970, and a heading of 110. Hoda reported from the back seat. In fact, there was no need for this process on this aircraft, because the HUD in front of Bayani in the front seat also displayed all target information almost simultaneously. But other than that he really didn''t know what he could do. In the past F4E, because the radar operation was quite complicated, a second pilot in the back seat was set up to be responsible for this operation. However, after the Chinese upgraded the radar, the significance of his existence as a weapons control officer was completely eliminated. But the Persian Air Force did not have time to adjust its organization, so he still had to take off again and again, and then just watch the performance of Lieutenant Colonel Bayani in front of him. I saw it, it must be a Ghost, but the other party hasnt noticed us yet. This new radar with superior performance is also one of Bayanis favorite things. The only drawback is that the Pili 11 missiles sold as accessories are about the same as the Sparrow. Even if fired head-on, the attack range is only about 30km, which completely wastes the performance of the radar. This mission did not obtain permission to use weapons first, but this did not prevent Bayani from doing what he wanted to do. For example, switch the working mode of the radar. ??Although he hasn''t been able to really lock in the target. ?The other party obviously felt the malicious radar signal, but at this distance, old-fashioned radars like the AN/APG59 obviously had no way of seeing clearly what was going on. The two sides are still flying head-on, but Bayani can guarantee that the other side''s pilot has begun to feel fear in his heart. Just like when he was locked by a MiG-25 during his first airborne combat many years ago. ??And even if he really came into visual distance, he didn''t panic at all. When the sun rises in the morning, the side located in the east has an inherent advantage. ?The opponent''s pilot will be dazzled by the rising sun, making it difficult to see the target clearly. Bayani had just mentally praised the opponent''s pilot for his courage, and was about to ask the backseat pilot to pay attention to the surrounding situation - this is the only role that ballast can play in an air battle. Captain, please pay attention ?However, only halfway through the words, the F4 lost the psychological battle, made a 180 steep turn, and accelerated away from the border. Although according to the experience of the lieutenant colonel, the opponent only needs to fly for another 5 to 6 seconds before he can clearly see that he is facing an "identical" Phantom fighter. What should I pay attention to? Heda in the back seat asked doubtfully. "It''s nothing. Please be careful in the future and never be as timid as them." Bayani shook his head: If this was a dogfight, the opponent would have had a 30% chance of winning, but now he is certain to die. (End of this chapter) Chapter 430 "Stealth aircraft of unknown type" Chapter 430 Stealth aircraft of unknown model ?Bayani, who had completed the scheduled evacuation mission, did not choose to return immediately, but still followed the target in hot pursuit for a while. This is also the experience he gained in the Iran-Iraq war. ??When facing a fighter with a long range, if the mission is immediately ended when the opponent turns around, the enemy pilot who has calmed down may still choose to make a comeback, and by then the passive pilot will become himself. Especially after the F4 fighter of the Turkish Air Force experienced a 180 sharp turn that greatly affected altitude and speed, it seemed that it had no very urgent desire to accelerate and had been flying westward at a high subsonic speed slowly, as if it wanted to drag. The scheming look made the lieutenant colonel even more worried. ??In the end, he drove the F4EC to chase the target all the way to the western border of West Azerbaijan Province. At one point, he was close to about 35 kilometers behind the opponent and adjusted the radar to tracking mode. Until this moment, the target on the radar display seemed to finally feel the fatal threat. After a period of acceleration that was quite rapid for the F4, it broke the speed of sound and fled westward. Watching the number representing speed next to the target on the HUD keep jumping upwards, Bayani finally breathed a sigh of relief. While closing the throttle and slowing down, he gently took the stick with his right hand and adjusted the course to the south through a small **** turn - he Just now, we could clearly see the main peak of Mount Ayr with an altitude of more than 5,000 meters not far ahead, indicating that the plane was quite close to Turkish airspace. Although the relationship between Iraq and Turkey is not good, the two sides do not have any conflicts over border demarcation. In 1932, the two countries conducted a rare territorial exchange that both sides believed they had earned. Neither country has changed the status quo. idea, so he couldn''t continue going west anyway. Report to the headquarters that the expulsion mission has been completed. He reported his success to the headquarters on the radio, Well done, Kava 01, you can return. ??Kawa is a hero in Persian mythology. Bayani has been using this call sign since he achieved his first air combat victory in his life and was promoted to squadron leader. But after receiving the order, he hesitated and immediately applied to the command headquarters: I still have some fuel and can patrol near the border for a while. There was no immediate response from the radio station, maybe they were communicating with the more senior commanders around them. A few seconds later, the voice sounded again: Approve request, but pay attention to fuel situation. Compared to Lieutenant Colonel Bayani who was in a good mood here, Major Zehra Ergai in another F4E 40 kilometers away only felt that he had just walked away from the gate of hell. Is that radar signal still locked on us? ??Although the sharp warning sound of the RWR has disappeared, he still gasped in shock and asked Lieutenant Hakan Dange in the back seat. The latter was just a humble ballast who had just graduated from the Air Force School. Seeing the majors in front of him so panicked, he had already panicked and didn''t even hear the sound coming from the radio until Ergai called him two more times before he responded: Uh...the warning light is no longer on. ?However, the young man who participated in the actual combat mission for the first time was obviously still immersed in the panic of being locked up: "But Major, I heard that the Soviets...the Russians have an infrared-guided medium-range air-to-air bomb. Could they have fired one?" Erge is more experienced after all, and has calmed down a little at this time: How is it possible? Only the MiG-29 of the Persian Air Force can launch the R27ET, but the radar just now is definitely not the radar of the MiG-29. ?Having said that, he still hesitated for a moment, and then placed his hand closest to the infrared decoy launch button: "If you are really worried, just look back more often. If you find anything unusual, tell me as soon as possible." The strategies for dealing with radar-guided weapons and infrared-guided weapons are completely different. It is difficult for the major to make accurate judgments in the blink of an eye, but the knowledge he has learned in the past tells him that it is always right to maintain a higher speed at this time. Theoretically, any R27 series missiles tail pursuit range when facing a supersonic target will not exceed 20 kilometers. The faster it goes, the safer it will be. About a minute later, Erge finally came back to his senses from the panic: Lieutenant, you should know how to report to the superiors when you return. The purpose of their attack was actually to bomb the separatist armed forces located in the mountains on the southeastern border, and they carried as many as 3 tons of bombs for this purpose. ?However, when they actually flew to the mission area, they discovered that a considerable number of targets had moved to Persia, so they lingered near the border for a while, hesitating whether to conduct a cross-border bombing. The result almost caused disaster. Just now, his radar did not detect any targets in the sky, but the radar warning device kept sounding one after another. Even after it turned to return, the ghostly signal source continued to be locked for a long time, so that the major had to ask Dange behind to drop all 12 bombs and auxiliary fuel tanks at once to speed up his escape. ??If the superiors knew about this kind of thing, he would probably not get any good results. However, the young man in the back seat is obviously not experienced enough in this regard: Just say that we encountered an unknown enemy plane during the mission, so we dropped the bomb midway? ?Honest answer almost made Erge choke to death: Idiot, if you report like this, you will never be able to become a formal pilot in this life! There will also be a cockpit voice recorder in the cockpit of the F4 fighter jet, similar to that of a passenger aircraft, but the data storage time is very short. Except for the crash, the major has never seen anyone access the information inside, so he is not worried about these conversations being recorded. People hear. The effect of such a threat was immediate, and Dange was immediately frightened by the major: Thenthen what should we say? "well" Erge sighed for his inexperienced partner, but in this case, the two of them were grasshoppers on a rope, and they still had to give some advice anyway: "Let''s say we found a Kurdish training camp near the border, but the angle was not good, so we used all the bombs to destroy it. Then on the way back, we encountered a Persian plane that came to intercept. In order to maintain maneuverability So the auxiliary fuel tank was lost." After finishing speaking, he felt that this explanation was still a little inappropriate, so he revised his statement: "No, don''t say training camp, just say we found a transport team. That way there will be no proof." ??The Major now regrets that he just threw down all the mounts out of desperation. If he had kept two auxiliary fuel tanks, he could have at least behaved a little more calmly. Okayokay. From Dange''s point of view, this seemed inappropriate, but when he thought about his dream of flying a plane alone, he finally decided to follow Erge''s advice: Then Major, you said we encountered a Persian F14? That signal is clearly not AN/AWG9, and Erge did not continue. Although the paper detection data of AN/AWG9 reaches a very exaggerated nearly 200km, judging from the examples of the Iran-Iraq War, either this number is seriously watered down, or the Americans simply exported the monkey version of the product. In short, at least the Persian F14 is very The difficulty is that the AN/APG59 can truly lock on a target the size of a fighter jet at a distance where it cannot see the target at all. Besides, he had just tried some maneuvers that were very effective against old-fashioned radars, but they obviously had no effect. And there is a more important point - ?Saying that I encountered an F14 does not seem to be enough to express the urgency of the situation. No, we just encountered a stealth aircraft of unknown type, so the radar was unable to search for the target throughout the entire process and had to return. "ah?" ?This statement made Dange feel that it was a bit too big. "Any questions?" "No." Under the flight helmet, the young lieutenant found that a cold sweat had broken out on his forehead. (End of this chapter) Chapter 431 Disruptor in the international arms market Chapter 431: Disruptors in the international arms market Of course, Lieutenant Colonel Bania, who was already returning home at this time, would not know that his plane had been defined as a "mysterious stealth aircraft" by two pilots who were unwilling to take responsibility. He just recalled the entire mission process just excitedly. ?Although there was no chance to have visual contact with the opponent, in any case, this can definitely be regarded as a big victory. Since 1988, Bania has not carried out any serious actual combat missions for nearly ten years. ?Especially after entering the 1990s, as the condition of the two main types of fighter jets deteriorated year by year, they even began to reduce the time for airborne training. Otherwise, we would not go to China to extend the life of the aircraft. You should know that Baniya is not the only one who is biased against Chinese equipment because of the Iran-Iraq war. Whether it is the regular army or the Revolutionary Guards, they were initially more inclined to seek cooperation from the Russians. As for why I went to China in the end... Because Persia itself does not have much hard currency such as gold and US dollars at the moment, and it is obviously impossible for Moscow to accept such an outrageous request to pay in oil. Happily, judging from the results, the upgrade plan provided by the Chinese is not bad either. ?Although this time cant be said to be a real combat, it can at least be regarded as a meal replacement. There was no need to continue running with afterburner during the return process, so when this F4 with special sky blue paint landed on the runway of TFB1 base again, it was already close to noon that day. The successful completion of the interception mission is a big deal or a small matter. For the Persian Air Force, it at least has a chance to prove itself after a trough that lasted for nearly ten years. I said Lao Yang, what are they celebrating? ?Han Linping was holding a dinner plate in his hand, which contained a bowl of fish soup, a chicken pilaf and a roast lamb shoulder. This was his first time in Persia. Although he didnt know much about the country before and couldnt understand Persian, he could still tell that there seemed to be something different just by looking at the atmosphere and the rich variety of food in his hands. . Remember the F4EC we saw this morning? ??Yang Jin took Han Linping to the second floor terrace and found a seat to sit down: I heard just now that the aircraft carried out a successful interception mission. It was the first time in the entire TFB1 base in recent years, so its natural to celebrate. The one we just upgraded? ?Han Linping, who had just taken a sip of soup, paused in mid-air. Yes, I heard that it was another F4 that intercepted the Turks. Yang Jin opened a bottle of pomegranate juice and poured a glass for himself and Han Linping opposite him. ?Although the Persian prohibition on alcohol is not strict at the implementation level, it is still impossible to openly provide alcoholic drinks on such official occasions, and fruit juice is usually used instead. ?Of course, as to whether anyone mixes wine with fruit juice to satisfy their cravings, that is a matter of benevolence and wisdom. "I go?" Han Linping was immediately shocked when he heard the news, and almost spilled the drink in the cup with his hands shaking. After taking a sip of his own business, Yang Jin explained nonchalantly: "The F4EC after our upgrade is actually a J-8C that looks a lot like the F4. It uses some 1473 technology in terms of radar, and its performance is even better. Even if the Turkish F4E is upgraded, it will still be the best in the later stage. The level of F4J or F4S, apart from the similar appearance of the shell, there is a generation difference of about 20 years, so it can definitely be easily suppressed. " ?Han Linping immediately waved his hand: Thats not the point. Turkey is a NATO country. Although it is a peripheral country of NATO, if we can make good use of this opportunity, it will also be an opportunity for us to export equipment and make a comeback..." The reputation of Chinese equipment almost fell to the bottom after the Iran-Iraq War, and this impact could not be completely eliminated until nearly ten years later. Although for some cash-strapped countries like Persia or Laos, China''s air force equipment can already enable them to achieve combat effectiveness, but it is already the late 1990s after all, and even if the MiG-21 is modified, it will be useless. It is impossible to get into the eyes of real wealthy donors. In order to occupy a place in the higher-end arms market, cost-effectiveness alone is obviously not enough. The best way is of course to achieve a world-famous result like the Exocet missile in the Falklands War. However, this opportunity is rare, and in many cases, even if it is achieved, it cannot be made public, just like the shooting down of the rice missile at the beginning of the year. Like the Ge 25, it has no direct significance for arms sales promotion. In this case, a "cold conflict" in which there is no open fire between the two parties can also be used as good propaganda material. Basically, neither side will make a big deal about this kind of border interception, but the weapons and equipment are not expected to be sold to the masses. As long as they can be recognized by the high-level officials of several nearby countries, it is enough. The information gap here is quite large. ?For example, after the Gulf War, although the reputation of Soviet-made equipment plummeted, France was actually the most negatively affected... Compared with the current need to think hard for high-end breakthroughs in air force equipment, China Military Industry''s situation in the army is still better. The national shooting range deep in the Badain Jaran Desert. Professor Rui Xiaoting is taking several core members of his research team to make final preparations for equipment testing with the project team of Sichuan Aerospace Industry Corporation, which has also come from afar. ??If Chang Haonan was also present, then he should be very familiar with the rocket launcher parked in an open space not far away. It was the Defender 2 that Rui Xiaoting came to him to complete design optimization less than two months ago. ?Although it still uses the same extended 6*6 wheeled chassis as the Defender 1 provided by Iron Horse, the launch box on it has been firmly replaced with a 3*2 square shape. Lao Zhang! How are the preparations for the test going? ??Rui Xiaoting closed the book in his hand, handed it to a graduate student next to him, then quickly came to the rocket launcher and asked loudly. A half-white-haired engineer poked his head out of the operating room behind the cockpit: Dont worry, we are setting the elements according to the data given by the shooting range. It will be ready soon! Zhang Hongyin, designer of the Guardian series rocket launchers. ? Under normal circumstances, the testing of conventional artillery weapons and equipment will be arranged at the Huayin Weapons Testing Center near Haojing, but the weapons they want to test this time are somewhat special. After leaving the capital and returning to Jinling, Rui Xiaoting used the method previously provided by Chang Haonan to optimize the directional tube and rocket, further increasing the aspect ratio and optimizing the bullet shape. Combined with the newly developed new propellant, the weapon system The ultimate range has been directly increased from the original plan of about 240km to about 350km. And Huayin center is less than 150km from Haojing city, so naturally there is no way to test it there. You must know that the Dongfeng 11 short-range ballistic missile, which entered military service only five years ago, has a range of about this level. Of course, the warhead charge of rockets is only about one-tenth to one-twentieth of that of regular ballistic missiles, and its ability to kill point targets is not at the same level at all. It does not mean that the range on paper can almost replace it. For the People''s Liberation Army, which already has ballistic missiles in its equipment sequence, the main goal of future long-range rocket launchers is still the pursuit of rapid response and area-killing capabilities. Therefore, in the equipment selection conducted a few months ago, Sichuan Aerospace Industry Corporation''s The plan was ultimately defeated by Norinco''s competitor based on the 9K58 Tornado design. ?Although the latter has a shorter range, its accuracy, firepower density and reaction speed are faster, and it eventually won the favor of the equipment system. However, in the export market, for countries that do not have ballistic missiles on hand, range is everything. Therefore, since the launch of the first model of the Defender series, it has won the favor of many countries, especially countries in urgent need of long-range deterrent weapons. As for Defender 2, there are already many interested buyers in the design stage. ??For example, there are a few people standing not far behind Rui Xiaoting at this moment. (End of this chapter) Chapter 432 Redefining "bazooka" Chapter 432 Redefining Bazooka ??These people have almost uniform beards on their faces, but they are not wearing burqas but ordinary suits. They come from a North African country that is relatively small and transparent at the moment, but has been and will be very well-known. Algeria. For a considerable number of users, the Guardian 1B rocket launcher with a range of about 180km is actually sufficient to meet their tactical needs. ?For example, Turkey and Thailand, two of the most important users at present, are negotiating with China Precision Machinery Import and Export Corporation and want to directly introduce the entire weapons production line. But for some customers with larger land areas or more ambitious customers, 180km is still not enough. And Guardian 2 is aimed at them. ?For reasons that are not difficult to guess, Algeria began to fall into an unprecedented scale of riots in the late 1980s, which gradually evolved into a civil war in 1992. ? It was not until August 1997 that this protracted war finally came to an end in essence, leaving behind a society in ruins waiting to be revitalized. Since 1996, Chinese construction engineering companies have begun contracting construction business in Algeria during the reconstruction process. ??This also includes the Algiers Pines Sheraton Hotel, a national landmark. It also became the beginning of Huaxia Companys entry into Africa. ?However, for Algeria, which has just experienced a round of intervention by external forces, quickly establishing an army with sufficient deterrence is a more urgent matter than rebuilding the country. Fortunately, as a country rich in oil and natural gas, although they are not as wealthy as the Gulf princes, the funds that can be invested in military construction can still be guaranteed. In fact, a few years ago, they inspected the old-fashioned Guardian 1 rocket launcher, but the range of the first version at that time was only about 80 kilometers, which was too far for use as a tactical weapon and not enough for use as a strategic weapon, so it was not used at that time. An agreement can be reached. After the upgraded version of Guardian 2 appeared, Alfang almost immediately contacted China Precision Machinery Import and Export Corporation through unofficial channels. ?Hence this trip. In fact, this test range located deep in the desert itself is a highly confidential unit. If it were a country with a slightly closer relationship with the West, it might not be approved to enter directly. A few minutes later, Zhang Hongyin, who had completed the Zhuyuan setting check, jumped down from the control room quickly and trotted to the side of Rui Xiaoting and his party. Several of you should have seen the situation of our sample cannon. If there are no other questions about the static data, then we can go to the monitoring room next to it? ?This kind of rocket with a caliber exceeding 400mm makes a lot of noise when launched. Except for the well-protected cab and operating room, it is difficult to ensure safety anywhere nearby. The head of the military procurement delegation, Aite Noine, nodded and followed Zhang Hongyin and Rui Xiaoting into several minibuses parked nearby. After everyone boarded the vehicle, the convoy kicked up a large amount of dust and sped along the dirt road to the shooting range working area about a few kilometers away. It is naturally impossible to have any drone live broadcasts these days. Therefore, although there are many screens in the so-called control room, the overall design of the camera positions is still relatively monotonous. , nothing more than multi-angle photography of the launch area and bomb drop area. Fortunately, the final speed of the rocket launcher is not very fast, and the entire process of hitting the target can be easily seen through the camera, so there is no need to worry too much about the demonstration effect. ??If you are fighting ballistic missiles or even hypersonic weapons, it is difficult for ordinary optical equipment to accurately capture the entire end process. It will give the audience the feeling that nothing happened just now, and the target exploded directly the next moment. The look and feel will be relatively poor. ??And it''s also difficult to determine whether you actually hit the target or whether you placed an explosive point in the target in advance. ?After sitting down in the monitoring room, Zhang Hongyin raised his hand and looked at his watch, and then said to the members of the Albanian delegation who were sitting opposite with impatient expressions on their faces: There is still about half an hour before the test launch time we applied for. Instead of waiting like this, why not let Professor Rui introduce the specific performance of our rocket launcher system? ??The reason why the test time is so stuck is because the approval is not made by the shooting range itself, but by the spare management agency of the Jincheng Military Region Air Force. The coordination and cooperation are quite cumbersome. Generally, the maximum ballistic height of a howitzer or howitzer with a range of 30-40km is about 6500-7500m. Such test firing only requires closing the low-altitude airspace and will hardly affect the normal flight of fixed-wing aircraft. However, as a rocket launcher with a range close to that of ballistic missiles, the Guardian 2 naturally has to compete with the former in terms of ballistic height. As long as it is tested, the no-fly zone area is quite large, and the whole airspace is infinitely high in one stroke, so in order to Airspace safety must be punctual. As soon as these words came out, several members of the delegation opposite looked at each other in confusion. Isnt the specific performance of the rocket launcher stated in the promotional materials you provided? Noine took out a thick color manual from the briefcase he carried with him. There was a structural diagram of the complete version of Defender 2 printed on the cover Since Wanshan Special Vehicle has not yet provided the promised 8*8 chassis, it can only use the renderings used in the previous design to temporarily fill up the number. After all, the current 6*6 site has been specially lengthened to accommodate the longer and more directional tubes compared to the old model, which looks very uncoordinated. This material is only for outsiders to see. ?Rui Xiaoting waved his hand, indicating that that thing was not important at all: Considering the traditional friendly relations between China and your country, we can reveal some more real data. Such a statement obviously aroused the other party''s interest instantly. What is more realistic data? As he spoke, Noine had already closed the notebook open in front of him. Obviously, he has understood what Zhang Hongyin and Rui Xiaoting meant. The following content is not suitable for written records. "To put it simply, the export model of the Guardian 2 will provide three different rockets. What you see in the manual is the first one, which is also the basic model. The warhead has a mass of 75kg, a range of 290km, inertial plus satellite guidance, and a maximum The CEP on the range is about 50 meters. Noine nodded, which was the main reason why they came to China. In fact, most of the equipment of the Algerian army continued its past habits and continued to purchase from the Russians. However, when they began to consider equipping a weapon with strategic deterrent effect, they encountered difficulties. The strategic weapons of a medium-sized country cannot naturally be intercontinental ballistic missiles with a range of tens of thousands of kilometers, but the only decent land-based long-range weapons in the Russian arsenal are these killer weapons. As a result of the Intermediate-Range Nuclear Forces Treaty, all short-range missiles that met Algeria''s requirements have been destroyed. So they had no choice but to find Chinese people who had no such burden to switch to. After all, the range of 290km is barely enough for them. For most users, we will only offer this base model. ??Rui Xiaoting said as he turned the laptop in front of him to face the opposite side. The screen displays three or simple cross-sectional views. Even people who are not technical can see some subtle differences between them. Because the painter thoughtfully marked it with thick lines on it "In addition to this, we will provide two other options. One is to replace the seeker and warhead. The head that originally only functions as a fairing will be replaced with a radar seeker. The cost is that the quality of the warhead will be reduced. Its as small as about 50kg, but it can attack moving surface ships. As for the other one, it is to replace the power section. We retained the propellant corresponding to the 350km range in the initial design, but due to the arms export treaty signed later, we can only waste part of the fuel by adjusting the engine parameters. " But actually you only need to replace these key valves to restore performance to the original level. ?At this time, Noine''s expression sitting opposite him was almost unbearable: Are you sure this is a... rocket launcher? Zhang Hongyin and Rui Xiaoting looked at each other: Strictly speaking, in our equipment catalog, the official name of this model is Guardian 2 Integrated Rocket Weapon System. Of course, if you are willing to use the name rocket launcher, we have no objection... (End of this chapter) Chapter 433 Bearings are a big problem Chapter 433: Bearings are a big problem Noine looked at the computer screen with clearly marked documents on how to increase the range and how to use the rockets to attack ships. For a moment, he didn''t know how to evaluate them. In fact, let alone him, even Zhang Hongyin was a little confused when he saw this plan for the first time. The launch dynamics of rockets, especially rockets with a large aspect ratio, is an extremely complex subject in itself, and a long-range ballistic weapon with a range of more than 300 kilometers like the Guardian 2 has to experience multiple completely different environmental conditions during the entire flight. The temperature layer, after all, the design idea has completely separated from the scope of general artillery weapons. Allowing customers to change the missile body design on their own can easily make the ballistic computer, which is already poor in performance, even worse. Especially extending the range of ballistic weapons cannot be solved by adding more fuel. If you mess with the upper structure of the rocket, the stability will be deteriorated and the rocket will fly around without accuracy after launch, or it will disintegrate before hitting the target. ??At that time, the Iraqis took two Scuds and put them together to form a ballistic missile with a longer range. However, almost none of them landed properly after launch, and in the end they were all included in the Patriot''s interception "results." However, Rui Xiaoting said very confidently that he had fully considered the issue of launch dynamics. The new missile body after replacing the seeker can share launch table data with the prototype missile, and the final stage can also be adjusted by relying on active radar guidance. According to the flight attitude, the accuracy of hitting a frigate dozens of meters long can still be guaranteed. As for the extended-range version, there are no changes to the missile body itself at all. Instead, the maximum range is extended by modifying the parameters of the solid rocket motor. In short, Rui Xiaoting quickly convinced Zhang Hongyin, who was worried, with professional and accurate calculation results. Of course, customers do not understand technology, and detailed design data are commercial secrets and cannot be fully disclosed, so we can only rely on test firings to speak for themselves. ?But this is not over yet. The PPT on the computer screen quickly turned to the next page. In addition to the three existing ammunition modes, we also plan to produce supporting drones for the Guardian 2 rocket system, which can be loaded directly into the launch box, launched through booster rockets, and recovered by arresting nets. When necessary, Under such conditions, artillery reconnaissance and meteorological observation missions can be carried out, as well as larger-caliber ballistic missiles launched from the same frame..." ??If Rui Xiaoting learned anything else besides the usage of TORCH Multiphysics at Beijing Hang University, it must be Chang Haonan''s cake painting skills. ??Be it the drones or ballistic missiles I just mentioned, it would be too much to say it was a plan. In fact, it was just the contents of the brainstorming session between him and Zhang Hongyin on the way to the shooting range. After all, these days, the entire Chinese army does not have a few serious drones, and the domestic aviation field is still close to blank in this regard. This is not a problem that those in the weapons industry can solve. ?However, Noine on the opposite side obviously didnt know this, and thought that these were very mature technical solutions like the previous parts, so he asked for a lot of details. Fortunately, half an hour was not long, and before Rui Xiaoting could no longer continue editing, it was time to conduct the launch test. On the monitor not far away, the 6*6 launch vehicle just now was speeding along a dirt road. After several turns, it stopped at the preset launch position, and then slowly lowered the support frame. "Because the fire control computer has been upgraded, there is no need to wait until we enter the firing position to calibrate the shooting elements. I have already preset the coordinate data of the target in the preparation area, and now I only need to retrieve it. Speeding up the reaction speed from entering the position to launching..." Zhang Hongyin explained from the side. As soon as he finished speaking, with a burst of dust flying, the first rocket broke through the sealing piece in front of the directional tube and shot out like an arrow off the string. Followed by the second and third shots... Compared with the previous generation product, we have modified the design of the frame, hydraulic mechanism and directional tube. The firing interval between each two rounds has been shortened to less than 2 seconds, and the firepower density is also more guaranteed. As he spoke, all six rockets were fired, the support frame of the launch vehicle was raised, and then he withdrew from the launch site as quickly as possible. The whole process probably lasted less than four minutes. "The shorter the time from entering the position to withdrawing from the position, which means the lower the danger of the firing unit. Compared with the 10-15 minutes of transfer time for most artillery units, our survivability can be improved by about four times. "????"Of course, with the range of the Guardian 2, there are not many weapons that can threaten it..." By this time, the way Noine looked at the screen was different from the first time. Even though there was no movement in the target area, he had already made up his mind that as long as the final accuracy was not too outrageous, he would definitely place the order. After the long wait. ?In another camera, six consecutive fires covered the entire target point with a white circle... "boom!" Noine smashed the table excitedly: You two, I want to go to your factory and take a look. Chang Haonan, who was far away in the capital, naturally didnt know that Rui Xiaoting had already mastered Guardian 2 after getting his software. ?After sending the design plan of the Air Police 200 to the Fucheng wind tunnel, he naturally returned his main focus to the aeroengine. ?Although the compressor and turbine experimental devices have not yet been put into use, this does not mean that related research cannot be carried out at all. ?Since this period of time, Chang Haonan has obtained a vast amount of aviation engine usage data across the country since the 1980s from the Science and Technology Commission. Especially breakdown and accident data. Judging from feedback on the use of turbojet 7/13, Spey MK202 and other types of aero engines, including civilian models, the main pain points are not only the fluid dynamics design that has always attracted more attention, but also many mechanical manufacturing and Mechanical design issues. For example, he found that among the in-flight parking accidents caused by all engine components, only the main shaft high-pressure rotor front fulcrum (three-point) bearing and the LPT shaft fulcrum (four-point) bearing accounted for nearly 40%, which affected flight safety. The main problem. In aviation engine maintenance data, replacement records of parts at these two locations are often seen. Taking the turbojet 14 that has just been put into use as an example, the three-point ball bearing theoretically needs to be replaced 3-4 times during the entire life cycle. For the SPEI MK202 with a longer life span, the number of replacements will reach 6-7 times. This time, it added a considerable amount of workload to the ground staff and seriously affected the aircraft''s readiness rate. Ultimately, during the take-off, climb, cruise, and landing phases of the aircraft flight cycle, the rotor system load, rotational speed and other working conditions parameters of an aero engine continuously change with the engine flight envelope. Typical service conditions are high speed, heavy load, high temperature, etc. During flight, aircraft engines are affected by short-term transient conditions such as surge and rotor imbalance. As a result, the two bearings involved in high-pressure rotor support often have to withstand extreme operations such as speed changes, load changes, over-rotation, oil cuts, and oil starvation. Under the test of environmental conditions, early failures and benign contact fatigue failures originating from subsurface layers often occur. As for a solution... ? Considering that even engines like the CFM56 are plagued by bearing failures, simply replacing them with better materials is definitely not enough. It is also necessary to analyze the three-point contact state of the main load-bearing area, the hoop stress of the inner ring and cage performance under high-speed operating conditions, the lubrication state, and the temperature field for the typical service conditions of aeroengines. By calculating the changes in operating conditions and structural parameters, The relationship between bearing performance and bearing parameters enables optimization of bearing parameters and surface fatigue and damage resistance design. This is exactly what Chang Haonan plans to focus on next. Because this technology is also crucial for the heavy-duty die forging press project that may be launched soon. Then lets start with you first Chang Haonan put down the statistical form he had just made, picked up the receiver of the red landline phone from the table, and dialed Ding Gaoheng. (End of this chapter) Chapter 434 New DLC: High-speed rolling dynamics of bearings Chapter 434 New DLC: High-speed rolling dynamics of bearings Rolling bearings look ordinary, as if they are just beads or cylinders stuffed in a ring, but in fact, the number of balls, ball diameter, gasket angle, curvature coefficient of the inner and outer ring raceway grooves, radial clearance, etc. A series of indicators will have a significant impact on the performance and life of the bearing and need to be set according to different specific conditions. The problems faced by domestic aerospace bearings, or domestic bearings in general, are very complex, ranging from manufacturing processes, material levels to design capabilities. In many cases, it is not simply that the level is not enough, but that the degree of adaptation is not enough, or there is a problem with the key parameters selected. Therefore, if you really want to improve a small bearing, it will involve many disciplines such as mechanics, mathematics, materials science, and mechanical design. It is really not something that Chang Haonan can solve alone. ??More importantly, at this time, almost all domestic research groups specializing in bearings have a mechanical or vehicle subject background, but the bearings used in aerospace engines are actually quite different from those in these places... Ding Gaoheng''s phone call was quickly connected. In fact, the normal process to find Ding Gaoheng should be through his secretary, but Chang Haonan happens to be one of the few people who can directly contact him personally. Xiao Chang, are you looking for any good news from me? Director Ding, I would like to ask you to send a notice to several universities under the Science and Technology Commission to inquire about the research and talent reserves of high-speed rolling bearings. ??As the contacts between the two become more and more frequent, it is no longer necessary to spend a few minutes chatting first every time. If you have any questions, just get to the point. High-speed rolling bearing...what new project have you taken on? Obviously, for Ding Gaoheng, who has become accustomed to Chang Haonan''s efficiency, he will be mentally prepared even if the former creates some miracles. We are busy enough now. There must be no new projects, or we are promoting the third-generation turbofan... Do you still remember the aero-engine usage and maintenance data I asked you for last month? Hearing this question, Ding Gaoheng suddenly became energetic: "Of course you remember. During that time, in order to collect materials for you, the general office worked overtime for almost a week. The science and technology offices in various places and the equipment department of the People''s Liberation Army were also troubled by your words. I guess Ah, there are many people saying bad things about me behind my back." Having said that, when he first heard Chang Haonan''s somewhat unreasonable request, he actually agreed without even thinking about it. Chang Haonan on the phone also responded half-jokingly: Dont worry, Director Ding, I have already analyzed it. When those data are transformed into better-use equipment, the people below should remember your kindness... Chang Haonan''s name is basically quite loud in the military industry, especially in the aviation industry system. However, there is actually a separation between users and their upstream R&D personnel, except for a very small number of special personnel who are responsible for test flights or tactical research and training tasks. In addition, few people actually care about the process by which the equipment in their hands is designed. Unless it is particularly easy to use like the Kalashnikov of the past, or it is particularly difficult to use like the Type 21 Combat Dad of the future. In short, in most cases, whether good or bad, the people who directly bear this reputation must be the Commission of Science, Technology and Industry for National Defense, which is responsible for research and development, and the General Armament Department (or General Logistics Department) as Party A. ?However, Ding Gaoheng obviously has no time to pay attention to these now: Have you analyzed... so much data? It took you more than half a month to analyze it all? ?Every time he thought he could face Chang Haonan with a normal heart, the latter would always come up with something new for him. Although the use of statistical methods to rank the importance of research directions can be traced back to the Second World War, due to limitations in data volume and computing level, the development of this field has not been obvious in the following decades. It is not surprising that Ding Gaoheng Feel surprised. "Well... of course it''s not all up to me. There are other people who are responsible for inputting data, drawing and making tables, etc... But the conclusion is indeed obvious. The two sets of bearings at the front and rear of the high-pressure compressor rotor are the main failure factors in aviation engines. It accounts for more than one-third of all failure causes. This is not only a problem faced by our country, but also a problem faced by developed countries, so I hope to solve it on the new generation of turbofan engines. In fact, Chang Haonan''s analysis of these data does have some meaning in artificial big data algorithms, and it also benefits greatly from his identity as a reborn person. Therefore, there is really no way to explain in too much detail, so he has to quickly discuss the topic. Move to specific technical issues. "I see... But Xiao Chang, please wait a moment. You may not need to go to the trouble of making an announcement..." After finishing speaking, Ding Gaoheng put the phone receiver on the table, picked up another phone that could only connect to the internal line, asked his secretary to send him a file, and then continued to say to Chang Haonan: I remember that at the beginning of this year, the Ordnance Industry Corporation reported a relevant material, which was an application for the establishment of a bearing industry association... In the late 1990s, as various products of Huaxia were gradually able to go abroad, the demand for standardization and organization in various manufacturing industries was also increasing. However, the scale of several ministries and commissions in charge of the development of Huaxia''s industrial field was gradually shrinking, resulting in the formation of many This type of voluntary industry association. A few minutes later, Chang Haonan heard a knock on the phone. Yes, there are several research groups at Bingcheng University of Technology and Northwestern Polytechnical University that are studying this direction. I will ask them to contact you as soon as possible. The system of the Science, Technology and Industry Committee is really not efficient. Just two days later, a professor named Wang Qinli flew directly to the capital with two graduate students from his research team to meet with Chang Haonan. Hello, Professor Wang. ?The other party had already sent an email before coming here, so Chang Haonan knew that the other party was currently a professor at Bingcheng University of Technology and the department head of the School of Mechanical and Electrical Engineering. ??Although it is necessary to address one''s position when working, there is still a small difference in status between him as director and director Ding Gaoheng. Even the signature at the end of the email puts professor first. Apparently he values ??this title more. Mr. Chang, Im so happy to be able to personally participate in our project this time. ?Wang Qinli stepped forward quickly and shook hands with Chang Haonan excitedly: You dont know that during this period, several professors from our college mentioned your name to me almost every day, as well as the multi-physics simulator. "oh?" Chang Haonan, who heard about TORCH Multiphysics, also became interested: Do they have any comments or suggestions about this software? ? He ??knew that if he asked directly for evaluation, he would only get some meaningless rainbow farts, so he might as well be more direct. Well, actually, everyone is still in the introductory stage, and they havent even learned most of the functions yet. If I have to say... ?Wang Qinli lowered his head and thought for a moment: I just hope to launch some toolkits like MATLAB, especially for the production side and some users who only need to deal with simple problems. It is really difficult for them to start learning from the most basic algorithms. ?This statement really hits home the biggest shortcoming of Torch Company, which is that the software ecosystem has not yet been developed. Many MATLAB toolkits are not officially produced by MathWorks at all, but are written and released by users or other companies. Therefore, they are found in almost all walks of life (although they may not all be easy to use). However, Torch Company obviously does not have such conditions at the moment. Many Life can only be done by yourself. "This is indeed our main plan for the next stage, and when I invited you here this time, I happened to have a similar idea to design a high-speed rolling bearing dynamics analysis module for TORCMultiphysics specifically for the bearing industry, and release it as a DLC of the software. " (End of this chapter) Chapter 435 Ten times life span Chapter 435: Ten times life span In the next two days, several more researchers working in related fields arrived one after another. In fact, if you are in a country with a relatively good scientific research foundation, this kind of problem can be directly issued as a research topic in the name of the 606 Institute or the Science and Technology Commission, just like the wing flutter analysis for the MA-60 project. , let several research groups conduct it separately. In addition to competing with each other, maybe we can also come up with something else in the process. A lot of technology accumulation in first-mover countries actually comes from this - When I researched it, I didnt know what its use was, but at some point later I suddenly discovered that it was crucial to a certain field. ?For example, the algorithm proposed by Chang Haonan at that time has now been applied in many fields such as construction, machinery, and energy, and has even become part of the national standard in some industries. ?However, with Chinas current technological foundation, it would be a bit of a waste of time to do this. As a late-developing country, it is likely that you will get extra gains by taking a trip on a road that has not been traveled by anyone before you. However, if others have already walked through it, it is better to cross the river by feeling the stones. Whats more, the timetable set by Chang Haonan for Turbofan 10 does not allow for such slow progress. With the support of many professionals, the research speed has been obviously increased. "In fact, with the development of elastohydrodynamic theory, our current capabilities can fully consider the role of elastohydrodynamic lubrication based on past quasi-static models, and more accurately calculate the rolling element/ring contact under oil lubrication. Zone oil film thickness and pressure distribution ?Wang Qinli stood in front of a blackboard and was introducing his current research direction. Professor Wang, wait... Another professor Zhang Qinggang from Northwestern Polytechnical University asked while he was drinking water: Then how do you deal with the oil film drag force, and the ferrule control theory in the Jones model? If you want to perform dynamics or even pseudodynamics calculations, it is impossible to continue to use this assumption..." Due to the relatively slow speed of information transmission in this era, although we occasionally met each other in the past, communication at the academic level was basically limited to publishing articles. After all, papers are a summary of research results, and after all, they are not as intuitive and comprehensive as face-to-face meetings. Especially for colleagues, many times the mistakes and iterations in the research process of a research group are more enlightening than the research results themselves. These things cannot be seen at all just by reading the paper. ?Now Chang Haonan suddenly brought these elders together. Although the former himself has not expressed his position, their exchanges alone have already sparked a lot of sparks. "The oil film drag force can be obtained by using the oil film thickness calculation formula combined with the Newtonian fluid model to calculate the shear stress on the contact surface, and then integrating it. The result we calculated is about 10%-20% different from the actual situation. There is a gap, but as a quasi-dynamics calculation, it can already play a guiding role in the general direction. " ?Wang Qinli put down the thermos cup and continued to answer questions from his peers: As for the Jones model He said with a playful smile, turned back and quickly drew a schematic diagram on the blackboard. A year ago, we really didnt have any better method, but now, we can use the displacement-deformation compatibility condition between the rolling element and the ring to determine the deformation and force of the rolling element and the ring, and solve the partial differential equation By obtaining the revolution and rotation speed of the rolling elements, the geometric relationships and load distribution inside the bearing can be obtained..." Of course I know this, but the working state of the bearing will have strong nonlinearity. How can I ensure that we can obtain a usable numerical solution? ?Zhang Qinggang can naturally understand what Wang Qinli means. In fact, considering the elastohydrodynamic lubrication theory is also the direction he is researching. But in engineering matters, many times it is not just a matter of theory. The result cannot be calculated, everything is equal to zero, and nothing works. Well... I have to mention Mr. Chang. As he spoke, the latter glanced at Chang Haonan, who was sitting on the other side of the classroom, lowering his head to record without saying a word: As one of the first users of our school to apply for trial use of TORCH Multiphysics, several colleagues have already solved many similar strongly nonlinear partial differential equation solving problems through its numerical solution module. One of the professors who does gear research and I Cooperation, and finally developed a new computing model, which is simply..." Subsequently, he spent more than ten minutes reporting his new results in the most concise language. Considering that I am not the only one who has contributed to this work, I tentatively decided to name this model the Ice City Model. ?Wang Qin was very happy when he said this. Obviously, he was very happy to be able to show off in front of his old colleagues and old rivals. ????The muscles on Zhang Qinggangs face twitched slightly. Although there are objective factors, others are further ahead in similar research directions, so its really hard for him to say anything. ?However, Wang Qinli continued to make faces: So, it doesnt matter if Professor Zhang doesnt understand this aspect, just use our model to calculate... At this point, Chang Haonan, who was a little worried that the academic competition between the two old comrades would turn into a physics competition in front of him, felt that it was time to end this discussion. Otherwise, it may not end well. He put the notebook aside and stood up. ?Wang Qinli consciously turned over the blackboard, then moved to Chang Haonan''s side and sat back down. First of all, thank you very much for your discussion just now. It not only allowed me to determine the current development level of domestic high-speed bearings, but also gave me a lot of inspiration. You still have to be polite first. ?But immediately after the next sentence, he looked at Wang Qinli, who had just sat down. Professor Wang, your model is indeed a leap forward compared to past theories, but there are still several problems. "First of all, the Newtonian fluid assumption of the lubricant should produce a relatively large error in the calculation results when the sliding condition is severe, and when the bearing moves at high speed, the characteristics of the lubricant will also deviate from the ideal Newtonian fluid, so I personally feel that this The model should be more suitable for heavy-load and low-speed scenarios, which is exactly the opposite of the working condition of aircraft engine bearings we are trying to solve now. ?Wang Qinli was just showing off out of habit, and what Chang Haonan said was indeed correct: As expected of Mr. Chang, he hit the nail on the head. We developed this theory during the process of developing bearings for the heavy-duty turbine equipment produced by Bingcheng Boiler Factory. Zhang Qinggang, whose face was almost turning green, finally breathed a sigh of relief secretly. ? Seeing that the atmosphere was finally a little more harmonious, Chang Haonan turned around and quickly wrote a few key points on the blackboard: Bearings used in aerospace engines have to face extremely high temperatures during operation, and they must withstand huge external overloads along with the aircraft, so they are very different from the ordinary bearings you have studied in the past. So our next research direction is mainly the following points. First, we consider the coupling nonlinear effect of the aero-engine rolling bearing and the squeeze film damper, regard the motion of the aircraft as the implicated motion of the rotor system, and establish a complex structure under maneuvering flight conditions. Flexible asymmetric rotor system dynamics model supporting nonlinearity Secondly, considering the damage failure of the outer ring of the intermediate bearing, study the impact vibration characteristics of the dual-rotor system of the intermediate bearing under the maneuvering load environment, and analyze the amplitude and frequency modulation of the impact vibration of the multi-rotor system by the rotor speed ratio, maneuvering load size, bearing damage span and rotor speed. Mechanism of action Then Finally, based on the above theoretical and engineering foundations, and based on the idea of ??damage tolerance, we carry out the optimization design of aero-engine bearings based on complex cycle conditions. After the introduction, Chang Haonan put down the chalk in his hand and looked at the professors who were still writing furiously with their heads down: "Considering that the basic design of the turbofan 10 engine has not yet taken shape, we are temporarily designing it based on the Spey MK202. The relevant data will be provided by me. However, please note that this project involves confidentiality issues. If you want to bring When students participate, they must explain the situation to them in advance. As for the goal, it is initially set to increase the service life of the three-point and four-point bearing sets to ten times the original! Ten...ten times? ?Hearing this goal, even Wang Qinli''s hands shook and he almost threw the pen away. As a purely mechanical part, bearings are generally considered to be difficult to make leaps and bounds. Their past research results have basically been improved by 30%-50%. Even if advanced foreign technology is directly introduced, it will be 2-3 times. s level. As a result, when he opens his mouth now, it is an order of magnitude? Chang Haonan was not surprised by this reaction and just nodded lightly: "Well, the current average life of these two parts is less than 300 hours. If it can be increased ten times, the parts and the whole machine can have the same life. In this way, a lot of time can be saved in the design just for the convenience of replacement. No added structure helps reduce the structural complexity and weight of the engine. For the new generation of engines, this is a crucial part that must be broken through! (End of this chapter) Chapter 436 Someone wants to buy our airliner? Chapter 436: Someone wants to buy our passenger plane? The elders sitting below are all professionals who have been involved in the obscure field of bearings for more than ten years or more. After listening to Chang Haonans introduction to the research plan, although he felt that the latters goal was a bit too high. High, but I still approve of the plan itself. In addition to the clear and logical theoretical analysis and the official identity of the chief designer of the Taihang engine, a considerable part of the reason for this is that even if several people have not used it, they have at least seen TORCH Multiphysics, which was developed by him. software. If someone else brazenly said here that they wanted to use numerical calculations to establish a dynamic model of a flexible asymmetric rotor system with complex structural support for nonlinearity under large external overload conditions, they would probably only receive a few laughs. But Chang Haonan is different. Although on the surface, his main achievements so far are concentrated in fluid mechanics, structural mechanics and control theory, if we really summarize his results, the common ground is actually in the field of computational mathematics. ?The mathematics community may still have disagreements on whether this thing can be regarded as fundamentalist "mathematical research", but engineering people don''t pay attention to this, as long as it is easy to use. Chang Haonan could naturally tell that the people sitting below didn''t quite believe in his claim to increase the bearing life by ten times. Actually, the ten times figure was still a conservative estimate made by him because he was worried about scaring these people, but now it seems that it is still not conservative enough. But it doesnt matter, the results will speak for themselves. People who lived in the late 1990s really knew nothing about the power of advanced optimization algorithms. ?Of course, to ultimately achieve this goal, it is certainly not enough to simply improve the way bearings are designed. In fact, after determining the bearing structure, he still needs newer, or more adaptable materials and processes. At present, the bearing steel used in China is mainly ordinary bearing steel GCr15 and a small amount of molybdenum series steel M50. This is no different from developed countries. Naturally, the latter is the main source of expensive aero engines. However, although the room temperature hardness of M50 steel can reach HRC62 and has good hot hardness, and can work continuously and normally at up to 316C, its fracture toughness is very poor, and its d.n value is difficult to exceed 2.4106mm.r/min. , reflected in the insufficient anti-flaking ability of the bearing surface, which can easily cause irreversible damage under certain extreme working conditions. This is also the reason why most aerospace bearings eventually reach their end of life. How to improve the idea? Its easy to say. Any graduate student who is engaged in metal materials can explain it clearly - Reduce the carbon content, increase the nickel content, maybe increase the nitrogen content, and then surface harden... But just having an idea is not enough. You also need to determine how much carbon to reduce, how much nickel to add, how to harden, what process to use, and what coating material is... This is why the raw material everyone uses is M50, but the aircraft engine bearings made by Pratt & Whitney, Rolls-Royce and General Motors have longer service life and better stability. All these details can only be determined based on the specific parameters and requirements of the bearing after the detailed design plan is released. As to how to determine In the past, it could only rely on trial and error, highly dependent on the experience of materials engineers, and of course luck, and the investment required was naturally extremely staggering. But now, Chang Haonan can give them at least some guidance in the direction. Efficiency is naturally different. Theres a long way to go Chang Haonan closed the notebook filled with research plans in front of him, looked at the backs of several other people getting up and leaving the conference room, and muttered to himself. As a person who has lived a new life, Chang Haonan naturally sees problems with the China Aviation Industry in the late 1990s, but for people who are living in the present, the changes that have occurred in the past year or so can be used as miracles. to describe. Hao Jing, Yan Liang. The fourth prototype of MA-60 and the second prototype in full condition is parked on the tarmac. A group of people in suits and ties were gathered around the right engine of the plane. ?Different from the usual yellow or metallic colors of other prototypes, this aircraft was painted with a blue and white paint scheme for the first time today. Those with sharp eyes will also notice that a trapezoidal flag symbol with red, blue and white intervals is painted on the vertical tail of the aircraft. Flag of Thailand. Obviously, this painting is very targeted. "Mr. Jonjit, this is our latest regional airliner, the MA60-100, which is also the basic model of the entire series. It can accommodate 60 passengers in normal layout." A staff member from Huaxia Aviation Technology translated into Thai the words introduced by Gao Quan, general manager of Haojing Aircraft Company. "Like several other regional airliners of this level, the MA-60 currently uses the PW127J series turboprop engine produced by Pratt & Whitney. There is no difference in performance and working mode, but in terms of supporting propellers, we use The self-developed 6-blade composite propeller with higher propulsion efficiency and safety, combined with the new wing with a large aspect ratio, can save an additional 8% in fuel consumption. When he heard this, the Thai manager named Jonjit''s eyes lit up. In fact, his trip was to seek a batch of new light regional jets for Bangkok Airways. Although Bangkok Airways is named after the capital of Thailand, which sounds very powerful, it is actually just an ultra-small airline that has been established for more than ten years. So far, it only has eight Schott 330 aircraft that are over 20 years old. passenger aircraft and 14 slightly newer ATR72-200 passenger aircraft. Originally, according to the plan, they were going to purchase a batch of Airbus A320s to upgrade their fleet, but the decision was made in mid-August 1997. Even a fool could feel that the economic situation in Southeast Asia was not quite right, so the management acted decisively. There has been a wave of consumption downgrades, turning the four mainline airliners in the original purchase plan into six regional airliners with 50-60 seats. Logically speaking, there are not many choices for aircraft of this level. Considering that Bombardier''s latest 8-400 is still a piece of cake, even the prototype has not yet rolled off the production line, and the 8-300 is already nearly ten years old. If the aircraft is an old model from 2008, the only remaining option should be to continue purchasing the new generation ATR72, which is the ATR72-500 aircraft. ?However, the importance of advertising is reflected at this time - The excellent performance of the MA60 at the Paris Air Show gave Bangkok Airways'' management a moment of hesitation. Huaxia Aviation Industry is basically not very transparent in the field of civil aircraft, but AgustaWestland is an Italian company after all, so it is still somewhat convincing. Moreover, during the air show, China was promoting overwhelmingly that they had reached mutual recognition of the airworthiness of regional aircraft with the European Union. Later, news came out that they had reached a similar agreement with the United States. These two things played a decisive role in improving the confidence of foreign users. More importantly, although the price of MA60 is only slightly lower than that of ATR72, considering that China and Thailand are neighboring countries, after-sales service is definitely cheaper and more convenient than ATR. As a result, Bangkok Airways board of directors finally decided by one vote to give this new model a chance. For China, this purchasing intention from Thailand is a complete surprise. ??Although Chang Haonan has reached mutual recognition agreements with Europe and the United States on the airworthiness of regional aircraft through some saucy maneuvers, even he himself actually has the idea of ????fighting for the future. Passenger aircraft still need a bit of word-of-mouth accumulation. At least in the first two or three years, domestic airlines were still the main operators. Chang Haonan has even thought about integrating several airlines that are relatively suitable for operating short-distance regional aircraft, such as Beijiang Airlines and Qian Airlines, into United Airlines in the airline integration plan that will be submitted soon, even if it is a loss. We will continue to operate MA60. As a result, domestic users have not yet arrived, and the first ones to come to our door are foreign customers. ?Its no wonder that general manager Gao Quan has put down many things and still has to personally take charge of the reception. 6 aircraft are just small shrimps for Boeing and Airbus, but for China Aviation Industry, it is a complete milestone. Can I go inside the cabin and have a look? ?Jongjit raised his head and glanced at the fuselage. The Chinese people specially painted this prototype with their company''s livery, which is undoubtedly a sign of sincerity. Of course, come this way, the ramp truck will be here soon. Gao Quan was obviously prepared. He picked up the walkie-talkie and said a few words, and a ramp car slowly drove over from a short distance away. Due to the limitations of the original structure, the cabin doors on both sides of the MA-60 are set at the tail, making it shorter than the other two regional turboprop airliners. Even passengers with a height of about 1.7 meters need to bend down. Go in. It can be regarded as a minor disadvantage. ?However, the environment inside the cabin made Jonjit quickly forget about the slight discomfort just now. (End of this chapter) Chapter 437 Quiet turboprop airliner (10,000 per day, please give me a monthly ticket) Chapter 437: The Quiet Turboprop Passenger Plane (10,000 per day, please give me a monthly ticket) ??For this kind of turboprop regional airliner with dozens of seats, the cabin must be all economy class, and there wont be much trouble. ??And because like the ATR series aircraft, Italians are responsible for the interior comfort design, the style layout even gives Jonjit an inexplicable sense of familiarity. ?Having worked for Bangkok Airways for more than ten years, he felt as if he was coming home as soon as he got on the plane. ?However, after adapting to the light in the cabin and taking two steps forward, he quickly noticed the difference between this aircraft and the ATR72. Just when he turned around to find the interpreter who was accompanying him to ask, Gao Quan who came up behind him had already given an explanation in time. Because the cross-sectional shape of the original design of the aircraft is different, the cabin of our MA60 is slightly shorter but wider than aircraft of the same class. If compared with the ATR72, the height has dropped by 8 cm, but the width has increased by 12 cm. , so every seat we customized is wider, as well as the aisle in the middle. In fact, most passengers have little awareness of cabin height. The cabin height of ATR72 is 2 meters, while that of MA60 is 1.92 meters. For most passengers, especially Asian passengers, there is not much difference. But the width is different. Since the basic width of economy class seats is generally small, it is just right for most normal-sized passengers. Therefore, even if it is only 1-2 cm wider on this basis, it will bring a very obvious riding experience. improvements. ?The experienced Jonjit just discovered this difference. He directly found a seat in the middle of the cabin and sat down. For most turboprop airliners, this is the place where the riding experience is the worstdue to the close proximity to the propellers, the noise and vibrations felt are extremely exaggerated. ??Of course it is impossible to do business on a casual basis, so Gao Quan and his party followed and sat around Jonjit. The comfort of the seat is really good. As a veteran, Jonjit naturally knew that it was best not to praise the seller''s products casually at this time, but he also had to admit that compared to the small bench-like seats on ordinary regional airliners, the one under his **** was much more comfortable. At least let him rest in place for a while. The comfort-related configurations in our cabin, including seats, lighting, and air conditioning, are all designed by Alenia Aerospace and purchased directly from Europe. The ride experience absolutely surpasses any competitor of the same level. ?This is very well said. To Jonjit, this sounded like an advantage of airplanes. But for Gao Quan, the whole person is a highlight. For passengers, the most direct perception is the cabin comfort configuration, but for him, the general manager of Haojing Aircraft Company, these things are obviously secondary. Although in order to achieve competitiveness in terms of fuel consumption and pollutant emissions, this aircraft still chooses engines imported from Pratt & Whitney for power, there is no doubt that the entire aircraft from overall design to production and manufacturing is completed in China. ??Italian partners only provided funds, the reputation of European companies and in-flight equipment that were not important to an "aircraft". Such a situation has never happened before in the history of Chinas aviation industry. After a while, we also arranged a test ride. ?Seeing that Qiongjit had already shown some interest, Gao Quan stood by and struck while the iron was hot: As I just said, the MA60 is more fuel-efficient than similar models. In addition to reducing operating costs, it also increases the range. Even with a full load of 60 passengers and 15kg of luggage per person, we can still achieve a range of 1,850 kilometers while retaining the standard fuel reserve, which should be an obvious advantage for your airline..." For such a user who almost fell from the sky, Gaoquan has naturally done enough homework. It is indeed a coincidence that thanks to the newly designed wings and propellers, the MA60''s range is stuck at a very perfect distance. As an airline that only operates small regional aircraft, Bangkok Airways actually has only two main routes. One is from Bangkok to Chiang Mai, the one-way distance is 760km, and the second is from Bangkok to Phuket, the one-way distance is 840km. The fully loaded range of the ATR72-500 is 1650km. ??Flying to Phuket, you must refuel locally before returning. If flying to Chiang Mai encounters many passengers, air traffic control, or strong headwinds, you must also refuel. For a small airline like Bangkok Airways, the aviation fuel support service at the airport is also a big expense. If you can refuel at one less airport, you have to refuel at one less airport. The range of the MA60 can at least guarantee a worry-free round trip on the first route unless something unexpected happens. ?As expected, the lethality of this sentence to Jonjit is no less than the 8% fuel consumption just mentioned. Though these two things are essentially the same. Then wed better start as soon as possible? He is obviously no longer as calm as he was at the beginning. Mr. Jonjit, please be patient. Our pilots are already making pre-flight preparations and they will board the plane soon ?At this time, Gao Quan started to play hard to get, which made Jonjit feel as if he had been scratched by a cat. ?Finally, after tasting Chinese special snacks for the fourth time, the two pilots in white shirts finally boarded the plane from the cabin door, and then walked forward into the cockpit. While they are preparing, we can go to the cockpit door to take a look. ?Gao Quan stood up and took Jonjit to the front of the plane. Since there is no boarding gate for ordinary planes here, there are just two rows of ordinary seats. Why are the cockpit doors so complicated to design? ??The latter asked looking at a flight attendant next to him who was holding the door with his body. This is a special request from one of our engineers. The cockpit door will automatically close without additional force, and once it is locked from the inside, there is no way to open it from the outside. Gao Quan shrugged and explained: He said this would be more conducive to ensuring flight safety. Although I didnt quite understand it, he played an important role in the design of the entire aircraft, and we followed this suggestion. The engineer who made this request was naturally Chang Haonan. As for the reason...it goes without saying. In a few years, passenger aircraft around the world will be forced to retrofit cabin doors with this structure, and someone will thank him then. As a businessman with a non-technical background, Jonjit doesnt really understand the joysticks, instrument panels and displays in the aircraft cockpit, but at least in terms of look and feel, it is not much different from other regional airliners. After all, the full LCD cockpit these days is not luxurious enough to be installed on such a small regional aircraft, so except for the three multi-function displays, most of the space is still occupied by various dials. With a roaring sound from the turbine and a shaking that could be felt throughout the aircraft, but not serious, the pilot started the two engines one after another through the air source provided by the APU. In the absence of additional energy supply from the ground, the MA-60 can cold start on its own, but due to insufficient air supply, only one engine can be started at a time. This is another amount of money that can be saved for the airlines. Come on, lets go back to the cabin and well start taxiing soon. After Gao Quan finished speaking, he signaled the flight attendant to close the cockpit door and took Jonjit back to his previous position. Outside the window, the propeller speed gradually increased. ?Jongjit habitually closed her eyes, preparing to endure the violent shaking and noise that followed. This is an inherent problem that is difficult to overcome for turboprop engines, especially since he chose a location closest to the window. A few minutes later, the plane slowly began to taxi along the taxiway. ?Jungjit opened her eyes somewhat unexpectedly, and looked out the window at the propellers that were turning at high speed with a look of shock on her face. ?The noise and vibration control of this aircraft is certainly incomparable to that of a turbofan airliner, but in a propeller aircraft, it is unexpectedly perfect! (End of this chapter) Chapter 438 A milestone for Chinas civil aviation industry! Chapter 438 A milestone in Chinas civil aviation industry! Within a few minutes, the plane entered the runway smoothly from the taxiway, then gradually accelerated, raised its head, and took off... ??Apart from the slight discomfort during the climb, until entering level flight, Jonjit did not feel the sharp noise in his memory that made his eardrums burst. The low roar is of course unavoidable, but in terms of intuitive experience it is more than half better. Is the cabin soundproofed well? Naturally, his first thought was to lean over and touch the inner wall of the cabin next to him. ?It is naturally impossible to figure out one or two of them. Even if any black technology is used on the aircraft body, it must be placed in the outer hard shell or the middle sandwich. The inner lining, including the inner porthole glass, will in many cases even be classified into the category of "decorative materials". Mr. Jungjit, was our flight experience good? Gao Quan saw Qiongjits novel reaction as if Grandma Liu had entered the Grand View Garden, and knew that the latter was shocked by the noise level in the cabin. In fact, even he thought there was something wrong with his hearing during the first test flight of the MA-60 No. 03 full-state prototype... The Yun-7 aircraft was originally produced in Haojing. Before he was transferred to an administrative position, he was responsible for some technical work of this model, and he often flew on the old Yun-7 when he was on business trips. Naturally, he knew this. What will it be like when a normal turboprop airliner is flying, especially when the engine is at full output during takeoff and climb. ?However, even when he was standing not far outside the wing, he did not feel the extremely uncomfortable roar. Ahthisis really good. Jonjit also realized that her performance just now was a bit embarrassing, and quickly returned to her original state. However, after a few seconds, she still couldn''t help her curiosity and asked: Did you use any special sound insulation materials on the fuselage of the aircraft? Finally, I finally understand what the other party is worried about when this issue comes to a head. As a representative of the airline company, although he was surprised by the quietness of the aircraft, if he had to choose between cost and cost, he would choose the latter without hesitation. All costs will eventually be passed on to passengers. Those who will take regional airlines like them are price-sensitive customers, and it is absolutely impossible to accept a fare increase for the comfort of a one-and-a-half-hour journey. So his first words dispelled Jungjit''s concerns. In terms of fuselage structure and materials, like most passenger aircraft around the world, we use ordinary additional honeycomb sandwich structure sound insulation materials, which will not bring additional costs and maintenance difficulties. The latter was indeed relieved. Increasing comfort without increasing costs is of course a 100% good thing. Immediately afterwards, Gao Quancai continued to explain: "For several other typical turboprop airliners on the market, the peak noise in the cabin during level flight, that is, the noise at our current location, is around 80 decibels, and may reach over 85 decibels during takeoff. Considering this data alone, it is actually It is not larger than a passenger plane using a turbofan engine, but the noise frequency of a turboprop engine is wider. It is the mid- and low-frequency parts that can easily cause serious discomfort to the human body. However, general sound insulation materials can only filter high-frequency noise, so passengers The ride experience is very poor. "Our aircraft uses a bionic propeller design, combined with some other control methods, which can reduce the noise peak by 2-3 decibels, and focus on reducing the mid-to-low frequencies. As for the effect, I would like to ask Mr. Qiongjit Already experienced it. What is the creature? The word "bionics" was too outrageous for the Thai translator who was only temporarily pulled over, so it had to be translated into English. However, Reggit was obviously not familiar with such a very common noun, and just understood the first sentence. bio-root word. "Oh, there is a comb structure similar to owl feathers designed on the outer leading edge of the propeller, which can significantly weaken the fan''s broadband noise below 2kHz. If you are interested, you can take a closer look when you get off the plane. Look at our propeller design. ??The design of this comb structure needs to be very delicate, and it also needs to be adapted to the propeller and the engine itself, which is not easy to learn. ??And Reggit is just a professional manager of an airline company. More importantly, the leading edge of this comb tooth structure will actually affect the efficiency of the propeller, so it cannot be fully optimized according to the quietness requirements. If you just copy an almost similar one, the overall performance may be counterproductive. In fact, what really reduced the noise of this aircraft was the part that Gao Quan just vaguely mentioned ?After Chang Haonan developed the logic of active wing flutter control, he quickly began to consider how to extend related ideas to other fields. As we all know, vibration and noise are essentially the same thing. Since the wing flutter data can be collected and then controlled by actively applying vibrations of different phases, more regular sound waves can naturally be followed accordingly. That is the logic of active noise reduction. In fact, 606 has researched similar technologies in the past. They once tried to use active noise control based on speaker arrays on Yun 7, which is the set found in many luxury cars in later generations. The effect is outstanding and can reduce the noise by an astonishing 13%. -22 decibels. However, the cost of this set of equipment is sky-high, and its weight and power consumption are also quite exaggerated, which will even directly affect the basic performance of the aircraft. In the end, it had to be abandoned. Chang Haonan, however, adopted another approach. Although it also has active noise reduction, he did not install additional audio equipment. Instead, he maintained a certain phase angle difference between the two propellers of the aircraft to mutually reduce the noise of the propeller on the other side. In fact, the initially completed phase angle control algorithm even included the function of automatically calculating the optimal phase angle difference based on the aircraft''s different flight altitudes and speeds, which can achieve optimal noise control under almost all flight conditions. But the PW127J engine is really holding it back. ? It is basically a mechanical hydraulic control logic, and the control accuracy is not even as good as the AL31FN on the J-10. Fortunately, researchers from the 606 Institute later developed many new tricks for the electronic controller. Although it could only use a fixed synchronization phase angle difference, this advantage was enough compared to other competing products of this era. . ?Regittes performance just now is the best proof. To demonstrate the aircrafts range, the flight experience lasted nearly four hours. ?However, after getting off the plane, Ridgette didn''t feel the tinnitus and dizziness that he was almost used to in the past. At most, it could only be regarded as some normal fatigue from flying. After the group returned to the car, Reggit, who had recovered from the shock just now, no longer had any reserve: Mr. Gao, we need you to provide a complete quotation and a specific delivery schedule. You know, this is a brand-new aircraft after all. The technical source of the MA-60 is actually the Y-7. Of course, the aircraft itself has been completely reborn, and the AN-24 has a mediocre international reputation. It is impossible for Haojing to have the brains to publicize the relationship between the two, so the new aircraft Zhou 60 is a brand new model on the market. Compared with sub-model upgrades such as the ATR72-500, the delivery cycle of new aircraft will undoubtedly cause some concerns. ?Especially for an airline as small as Bangkok Airways, missing a peak season business may be the difference between life and death. "No problem, but we need about two working days to prepare the documents in both languages. During this period, I think we can send someone from our public relations department to take you around Haojing?" Gao Quan asked tentatively. ?This tour is naturally not a real tour. When doing business, even if it is a seemingly high-end business like selling airplanes, it cannot do without the down-to-earth part. In addition to producing excellent products, we still have to work hard in other aspects. Of course, Ragit is by no means a white lotus. It is better to say that he is waiting for this part. Well, then I will take advantage of this time to have a deeper understanding of the history of Chinese civilization On the surface, words should be spoken in a high-sounding way. Gao Quan, who was sitting in the next row, secretly clenched his fists in excitement. ?Although Reggit did not make a clear position, it is obviously a sure thing that things have reached this point. ?As long as this business deal can be signed, his name Gao Quan will definitely remain in the history of the development of China''s aviation industry. ?Although this is not the first time China has exported civil aircraft - about ten years ago, Bingcheng Aircraft Company exported two Y-12 transport aircraft to Sri Lanka. But the meanings of the two things are obviously different. On the one hand, the Y-12 is, after all, just a small general aviation aircraft, and the qualifications required to operate it are completely different from those required to operate a serious passenger aircraft. On the other hand, MA60 is also the first model designed, manufactured and certified by China using the new CAAC standard. It can be regarded as a milestone in Chinas aviation industry. (End of this chapter) Chapter 439 The fate of An 70 Chapter 439 An 70s fate ?Maybe its because the ship is small and easy to turn around, but Bangkok Airways efficiency is far beyond almost everyones imagination. ?After Haojing provided the quotation and delivery guarantee required by Regit, they almost immediately sent another higher-level team over, led by the general manager himself. ?This team once again experienced the entire flight process of the MA-60, and then after simple and even hasty negotiations, they signed an order contract with additional conditions. The main thing is that in this matter, both sides feel that they have taken advantage of it. For Bangkok Airways, they can purchase an aircraft with all-around performance exceeding the ATR72-500 at a similar price and with lower follow-up maintenance costs. In addition, the additional terms also stated that if the first aircraft cannot be delivered on time, they can get a full refund and a liquidated damages, with almost no risk. For China Aviation Industry Corporation, this customer who fell from the sky was a complete surprise. You must know that even Beijiang Airlines, which was previously considered the most likely to purchase the MA-60, has not yet signed an actual order. Since you are picking up money, you dont care whether you pick up more or less. So, everyone was happy. ?However, if some people are happy, others will naturally be sad. Six time zones away ? Alexander Chulsky is sitting a little stiffly in the office of Anatoly Kuritsyn, the general director of the Ivchenko-Progressive Design Bureau. Even though he has lived here since he can remember, today is indeed the first time he has walked into the core building of this design bureau. ?About ten days ago, that is, on the day that Chulsky had just received his salary, he accidentally heard the news that an inconspicuous but smart person needed to be sent to Kiev on a business trip. ?This made him think a lot. ??Although he has never engaged in any other profession except carpentry and has not attended university, Chulsky is relatively confident in his brain. If it were left in the past, he would definitely not be interested in work like a business trip. Not to mention the long train ride. With the current financial situation of Ivchenko-Progressive Design Bureau, it may be difficult to provide sufficient reimbursement funds. . ?The big city is certainly prosperous, but everything has nothing to do with his empty pockets. At least you can enjoy a free lunch every day while staying in the design bureau. But things were different that day. ?On the one hand, it was because wages had just been paid, which meant that the bureau had some money, and on the other hand, it was because I had just heard a lot of rumors from Ivanov. This was like opening the door to a new world for him. Especially the part related to the Chinese people. It is said that those who came from the east would carry dollars in sacks and buy anything they were interested in. ??Chulsky will certainly not take this exaggerated statement completely seriously, but since there are such rumors, I am afraid they are not groundless. At least, judging from the fact that the design bureau was suddenly able to issue wages, it should be true that China has money. So he used some connections to make himself a candidate for a business trip to Kiev. In fact, the task assigned to him by the leadership of the design bureau was surprisingly simple. ?Although the situation of Antonov Company is better, it is also from the corporate level. At most, the treatment of key personnel can be slightly guaranteed, and the lives of most of the low-level cows and horses will not be any different. So he just wandered around the other party for a few times and got out a lot of useful information through a few meals. Some people said that they had seen many Germans in the company who came to discuss business... The manufacturing of the second prototype has come to an end, and now it is just waiting for the final debugging and the four D27 engines to be put in place before it can make its first flight again... ?Some people also saw many Chinese people coming and going frequently... In short, there are all kinds of true and false rumors flying all over the sky, and many of the statements, and even many people''s own statements, are inconsistent. ?However, one thing is for sure. The An-70 project is definitely not bad and is still moving forward according to the plan. ??Originally, Chulsky could return to Zaporozhye when he got here, but after all the trouble, he finally got a chance to escape at public expense, so naturally he had to do some things of his own. So he directly made up an identity for himself as "an engineer assigned by the Ivchenko Design Bureau to the Antonov Company responsible for aviation power matching", and then often wandered around Grushevsky Street where the number of foreigners was relatively dense. . ??This identity is half-true and half-false, and highly deceptive. His work certificate is genuine, and he has lived and worked in the design bureau for more than 20 years. All details are flawless. Although his job title is listed on his ID card, Chulsky ventured to guess that the vast majority of second-tier dealers who come to Kiev to do business cannot understand Russian. He bet was right. After a few days, he actually came into contact with a businessman with an Asian face, and they even left each other''s contact information. The other party expressed that he is interested in all industrial products. If there are relevant channels, you can contact him. Transactions are in US dollars. ?This made him excited for several days, although he couldn''t think of anything he could offer to the other party for a while. ?However, Chulsky felt that Zaporozhye, as an important industrial base of the past alliance, would always have opportunities as long as he paid attention. ?However, the good times did not last long. Now, the gloomy expression of his general manager made him wonder whether it was known that he was using public funds for private affairs outside... That Asians dollar is still a castle in the air after all. If he is kicked out of the design bureau or even thrown into jail... ?Chulsky was a little afraid to continue thinking about it. He could only force himself to calm down and tell what he saw and heard in Kiev during this period: Based on the information I gathered from Antonovs grassroots employees, An70 should still be under normal development... ?Somewhat strangely, although the task of sending Chulsky to Kiev was personally given by Kuritsyn, he seemed a little absent-minded about it today. "General manager?" The former, who had not received a response for a long time, couldn''t stand it any longer, so he simply called out. ? ?Stretching out one''s head is the same as shrinking one''s head. He thought that he should give himself a happy life. "oh" Kuritsyn, who finally came to his senses, did not ask any further questions, but just nodded: Your observation is very accurate, very good. Go to the finance department and get the business trip allowance. "ah?" Chulsky, who thought he was about to die, was stunned for a moment, and then realized that the other party obviously knew nothing about what he was doing in Kiev: Oh, okay...okay. ?Kuritsyn waved his hand impatiently, indicating that he could leave. ?After sending Chulsky away, the former let out a long sigh, lowered his head and opened the drawer in front of him, and took out a document from it. The above is the decision from the Board of Directors of Motorsic Group. The design bureau and the manufacturing plant are required to devote all their efforts to the research and development of the AL460S engine and cooperate with the technical personnel of Aodian Company to complete the development of the DA450 aircraft. Now, our sin will be huge... ??Kuritsyn muttered to himself sadly. Investing all manpower and funds into the development of a new model will inevitably affect the further improvement of the D27 engine. This propeller fan engine with a peculiar principle can be said to be the core of the entire An70 project. ?At this critical juncture, if the power system is delayed for a few years, we dont know what changes will happen. Although the An-70 has excellent performance, it has never been the only choice for potential customers. The Germans can turn around and participate in the A400M, and China can continue to introduce the IL-76, or even cooperate with Ilyushin or Tupolev to produce its own Large transport aircraft. As a result, the Motor Sic Group itself is not the only one who will be affected. Antonov, and even the revival of the countrys aviation industry as a whole, will suffer a major blow. ?This move is completely a conspiracy. Even if the DA450 is developed, the market for general aviation and junior trainer aircraft will not be able to bring huge profits. It will only die immediately after taking another breath. What''s more, the plane itself is not very reliable. ?Thinking of this, Kuritsen suddenly felt a deep sense of powerlessness. ?Belayev had already seen something was wrong with the Austrian Diamond Company before, but it was of no use. He has seen clearly that everyone from the company''s board of directors to Minister Ribiazin of the Ministry of Industry is on the opposite side of him. To say that this group of people did not receive any benefits from Arcane, I would not even believe it. ܧѧҧݧէ Kuritsen, who has always been well-educated, said a curse word: The enemy is in the Verkhovna Rada (End of this chapter) Chapter 440 The dawn of machinery manufacturing Chapter 440: The Dawn of Machinery Manufacturing Industry At the same time, here at Beijing Hang University. ?Chang Haonans research on high-speed rolling bearings has also entered the most critical stage. For him, if he really just wants to design a single bearing product, whether it is for turbofan 9 or turbofan 10, it is actually not difficult. ?? I completed the scattered things during this period, and once again saved about 300 scientific research points, which was enough to complete a mere bearing design project. But now Chang Haonan no longer has this ambition. ? ? When I was first reborn, there was no way to spend scientific research points on specific projects. After all, if there are no concrete and persuasive achievements, you can''t just rely on words to persuade others to change the direction of national-level policies - ?Even if he had full points in the Talking Skill, he had no way to speak at that time. However, that was then, and now is now. Now that Chang Haonan has the ability to influence the direction of the industry, his perspective on things must be different. ?The reason why he wanted to bring together several top research groups engaged in high-speed bearing research in the Science and Technology Commission system was not only to speed up the research progress, but also to prepare to promote the level of the entire industry. Even with TORC Multiphysics, a tool whose computational efficiency is an order of magnitude higher than in the past, to achieve this goal, the data obtained during the research process is more important than the results. Mr. Chang! The first batch of experimental results have come out! ??A young man wearing blue overalls and goggles quickly walked up to Chang Haonan, who was looking at a table on a row of bearings in front of him. Zhang Jing, a doctoral student in Wang Qinlis research group. He is similar in age to Chang Haonan, and if I have to say, he is even several years older than the latter. ??When he was first asked by his mentor to come to Beijing to work on a project, his original intention was to refuse. For graduate students, especially graduate students in this era, business travel is definitely a chore. The helpless man had to lower his head under the eaves, and was finally dragged over by Wang Qinli. ?However, after seeing Chang Haonan''s research efficiency before and understanding the research topics they would be responsible for next, he quickly became very enthusiastic and devoted himself to the assigned work. ?After this period of time, if I hadnt still recited some of the ancestral precepts of respecting teachers and respecting Taoism, I would have forgotten Wang Qinli. The experiment he mentioned was Chang Haonan''s concentrated test of his achievements during this period. Lets go and have a look. Chang Haonan put down the form in his hand, inserted the pen into the breast pocket of his lab coat, and strode to another room not far away. ?There, a dozen pieces of equipment that were rotating at high speed were making a low roar. Although the experiment has ended, it is obviously impossible for the equipment under high-speed rotation to stop from 15,000 rpm immediately, so the bearings under test still need to wait for a while before they can be taken out. ?However, the shock and vibration data recorded during the entire process can still be viewed. ?Chang Haonan went straight to the computer with the No. 1 logo on it. Several professors responsible for different research contents, including Wang Qinli and Zhang Qinggang, consciously gave him a position with the best angle. "Mr. Chang, according to the recorded data results, the RMS amplitude of the rotor acceleration signal before maneuvering flight is 0.1190m/s^2, and the RMS amplitude during maneuvering flight is 0.1957m/s^2, with an increase of 64.45 %; the RMS amplitude of the bearing contact force pulse signal before maneuvering flight is 19.5124N, and the RMS amplitude during maneuvering flight is 37.4275N, an increase of 91.81%, which is very close to the prediction result of your improved mathematical model. Comprehensive The error is within 8%. ?Wang Qinlis voice was trembling when he reported the results. You should know that the model he improved on the Jones model before can control the prediction error of the dynamic performance of low-speed bearings under normal operating conditions to about 15%. ?This has made Wang Qinli feel that he can leave his name in the field of mechanical processing, and he even considered naming it Qinli Model. ?However, it only took Chang Haonan less than half a month to raise the accuracy to a new level? Zhang Qinggang next to him had completely forgotten that there were other people around him, almost holding the screen and muttering to himself: Its so accurate, its so accurate... For an engineering model, this accuracy is indeed almost a dream. However, Chang Haonan was not surprised by this. In fact, when everyone had the first meeting, the idea proposed by Wang Qinli was already quite forward-looking, and he made some modifications on it, including assembly interference, Taking into account several factors such as temperature differences and external maneuvering overloads that were previously difficult to calculate due to strong non-linearity, it is obvious that the accuracy has been greatly improved. ?After looking at the data on several computers in succession, everyones attention has shifted to the experimental equipment not far away. In fact, the dozen or so pieces of equipment that are decelerating next to them have been running continuously for hundreds of hours. ??For the life equivalent accelerated test, these bearings have also reached the end of their life. This can be seen from the fact that the data recorded on the computer have obvious abnormalities compared with the steady-state operation. The bearings tested in each piece of equipment are specially designed with typical structural parameters. According to Chang Haonan''s calculations before the experiment, each of them will correspond to different failure modes. The prediction of dynamic performance is only a small part of the content. The final test is whether the calculation of the bearing failure mode can correspond to the actual situation. If it can, it can directly bring China''s bearing industry, and even the entire machinery manufacturing industry, into a new era. An era where overtaking on a straight road is possible! Although this process may not be completed in three or two years. But for Chinese researchers, difficulty has never been a problem. The problem is that there was no hope in the past. ? ? Better products from others mean more users, and more users means more and more valuable data is generated, and this data can be fed back to further optimize products. Basically all high-end industries meet this virtuous cycle model. In this case, if you want to achieve transcendence, you must either wait for major changes in the external environment, or simply change the track. What Chang Haonan did was completely unreasonable and broke this cycle. With a better algorithm framework, the amount of data I need to optimize the product may be only one-tenth of yours or even lower, so the gameplay is different. Soon, more than a dozen experimental equipment stopped operating one after another. After another period of cooling, the operator in charge of the experiment took out the bearings one by one. No. 1 bearing, according to calculations, the maximum contact stress during operation is 2500Mpa, and the maximum shear stress of the subsurface layer is about 125m from the surface. The failure mode is speculated to be fatigue spalling originating from the subsurface layer. Chang Haonan can already repeat the calculation results of each bearing without even looking at the labels on the equipment. Yes, the peeling area is about 50mm15mm, the subsurface butterfly-shaped structure is about 105~129m from the raceway surface, and the maximum length is about 40m The No. 2 bearing has a maximum dn value of 2.38106mmr/min during operation, and the instantaneous temperature in the contact area reaches over 300C. The failure mode is presumed to be the fracture of the bearing ring and cage. No. 3 bearing, bearing raceway and cage surface wear failure No. 4 No. 16, pitting corrosion failure originated from the bearing raceway surface ??After Chang Haonan reported the malfunction of the last experimental subject, there was no other sound in the entire laboratory except the hum generated by the operation of the computer mainframe. "How is the result?" After a few seconds of silence, Chang Haonan turned around and looked at the dozens of people in front of him. ?Zhang Jing held an experiment record book in his hand. At the end of each line of content, there was a check mark. It all matches! (End of this chapter) Chapter 441 A proud day! Chapter 441 A proud day! After what seemed like a long period of time, the second person reacted: "Mr. Chang, is this... a success?" At this point, Chang Haonan couldn''t help but smile. At the same time, he took out the ballpoint pen from his pocket, clicked the pen tip out, and signed his name with a few strokes at the end of the test record. After doing this, he raised his head again: "if not?" ?Those who can stand here, including operators, are professionals in the industry. The reason why I asked this question just now is of course not because I dont understand the experimental results, but simply... its unbelievable. A bearing may fail in various ways when faced with different working conditions. Even under the same working conditions, different faults and damage may sometimes occur due to production consistency issues. Before today, no one had even thought of using theoretical means to calculate and predict the working conditions of a bearing during its entire life cycle, because it seemed too complicated to start with. But Chang Haonan did it. Not only did it happen, it was successful. Therefore, after receiving the affirmation from his rightful owner, the crowd in the laboratory finally burst into cheers. People from twenty to fifty years old, from master students to professors, hugged each other one after another, or raised their arms and shouted. As a country that completely missed the first two industrial revolutions, machinery manufacturing has actually always been one of China''s biggest shortcomings in the field of science and technology. However, due to its high reliance on experience, it is almost the most difficult field to catch up. . ?This has resulted in China''s machinery field being in a low-end repetitive cycle of lagging behind - catching up - and continuing to lag behind for a long time. Compared with IT or finance, the manufacturing industry is inherently a "hard-working" industry with huge investments and a long recovery cycle, and a large share of the already low profits has to be taken away by countries such as Europe and the United States, leaving it to the domestic market. For enterprises, it can only be considered a mouthful at best. In the era of market economy, if you cant make money, people naturally have little enthusiasm. As the industry is like this, the situation in the research field is naturally not much better. You can neither make much money nor publish high-impact papers. To a certain extent, it is not even as easy as the four major tiankeng majors in materials, chemistry, biomass, and environment in the futureat least the water thesis is easy. Over time, the entire machinery field, both on the production side and on the R&D side, has become the lower reaches of the industrys contempt chain. As practitioners, they could only accept this status quo in the past, but that does not mean they are willing to accept this status quo. No one is not looking forward to a day when they and the entire industry can be proud. ? ?No one doesnt want to be able to make most of the profits from end products by selling only some key components like Europe and the United States. ?This is not to mention that most of the Western blockade and embargo lists against China involve technology or equipment in the field of machinery manufacturing. Even some products that are allowed to be exported to China are downgraded versions with limited functions. ?This is blatant discrimination, but in the past, we just couldn''t do anything to each other. If you fall behind, you will be beaten. This saying is not only valid on the battlefield. Today is the day when the counterattack horn sounds. Mr. Chang, with this technology, does it mean that our bearings will never face unexpected failures in the future? ?An old technician responsible for experimental operation and bearing maintenance happened to be standing near Chang Haonan, smoothed his half-white hair and asked the latter. What I study is science, not magic. Of course, I cant do it to this extent. After the cheers of the crowd subsided, Chang Haonan explained half-jokingly: Our sixteen bearings were carefully selected after leaving the factory, and were measured with special high-precision data before the experiment, so we can obtain very accurate calculation results. "If it is an industrial product, it is obviously impossible for everyone to operate in this way. In addition, during use, there may be unexpected problems that are difficult to predict, such as foreign objects or misoperation. In short, the reality is very complicated. To say 100% Its accurate, no one can guarantee it. In fact, this principle is similar to the previous active anti-asthma system for aviation engines. ?No matter how magical your function is, you can''t withstand the collision of birds in the air. ? As a veteran who is only 24 years old but has 26 years of scientific research experience, Chang Haonan knows one thing very well, that is, you never know what tricks users will play with your equipment.?????But nothing. He then added another sentence: As long as no accidents occur, to be modest, I think 95% prediction accuracy can still be guaranteed. The surrounding crowd burst into warm applause again. Predicting how bearings will be damaged actually doesnt make much sense to end users. Once its broken, its broken. Its no longer usable anyway. It needs to be repaired or replaced with a new one. Secondly, you cannot expect end users to have experts who specialize in this area. An excellent Party B must acquiesce that Party A is a fool. But for manufacturers who develop and manufacture bearings, it is simply a **** among gods. This means that as long as they get the accurate parameters and operating conditions of a bearing, they can predict whether it meets the needs of the target usage scenario, and the product development cycle will be greatly shortened. ? It will also promote the more upstream metallurgy and precision instrument fields. ?Furthermore, if you can combine some optimization algorithms, you can even reverse this process - After obtaining the usage scenario requirements provided by Party A, reasonable parameters, or at least a reasonable parameter range, can be obtained directly through calculation. Directly changing the rules of the game for the entire industry. ??Its just that to achieve the latter, a large amount of data accumulation and algorithm optimization are required. This cannot be done in the laboratory. They can only get 16 sets of experimental data in one hundred hours, which is not as good as that of large bearing manufacturers. After the short celebration, Wang Qinli first returned to the topic: Mr. Chang, the next step is to determine the parameters of the new bearing based on the technical data provided by the Aviation Industry 430 Factory? According to Chang Haonan''s plan, the first model to use the new bearings should be turbofan 9. This has also been established a long time ago. High-thrust turbofan engines not only face design difficulties, but also need to use many new processes and materials. ? If you wait until the design work is complete to start testing, you will not only delay the progress, but also accumulate risks by stacking too many new things together to try out. Chang Haonan can indeed make new technologies reliable by his own ability, but it is impossible and not good for him to drive screws himself, so the process of turning paper content into actual products will still produce uncontrollable factors. It is still necessary to find a relatively mature model first. ?However, at this point, there is still a gap between Chang Haonans goal of increasing bearing life by more than 10 times. Although others are already very satisfied with the current test results, he did not say it casually. Bearing parameters are only one aspect, this matter can be handled by you. Chang Haonan said as he looked at the dozen test bearings lined up at the inspection station next to him: I want to put my energy into material research and development. A group of people looked at each other in shock after hearing this. Do you still understand this? A somewhat high emotional intelligence question was blurted out by Zhang Jing. Chang Haonan put his hands behind his back and shook his head gently: I cant say I understand it, Im just a little interested. (End of this chapter) Chapter 442 Breaking through high-end resistance Chapter 442: Breaking through the high-end resistance Although he said he would focus on materials, it was obviously impossible for Chang Haonan to contact materials research and development personnel across the country. The research direction of high-speed bearings is an unpopular one. There are not many research groups working on it in the country, and there are only a few at the forefront, and they happen to be concentrated in a few universities under the Science and Technology Commission system. Put together It''s easy to hold a meeting. But materials, even relatively unpopular metal materials, definitely belong to prominent science (easy articles). There are so many researchers. Even some scholars who are not originally in the field of materials science will join in the fun just to publish a few more papers. If they are published in batches By holding meetings for them, Chang Haonan probably won''t have to do anything else in the next few years. ? Even if we focus on the industrial end of metallurgy, the number of domestic steel plants... You have no idea which steel mill has done something weird in which segment. It is impossible to carry out a large-scale industrial survey in 1997. Before the information age, doing this kind of hard work, the manpower and material resources mobilized, and the various twists and turns that may be involved were enough to cause the entire industry to go into chaos or even come to a halt. At this time, we must learn to grasp the key contradictions. In the entire bearing industry chain, the most concentrated part in China is actually the bearing manufacturers themselves. The only three companies that can produce relatively high-end bearing products are Hazhou, Luoyang and Wa. That is, Bingcheng Bearing Group, Luoyi Bearing Group and Fuzhou Bearing Group. They are all established companies in the industry and have close ties with the upstream machine tool, metallurgy, and precision instrument industries, as well as many downstream manufacturing industries, especially the civilian manufacturing industry. This is important. As mentioned earlier, in order to further improve his theory and benefit end users from it, a large amount of data from the industry is required. But this kind of thing is easy to say, but there is a big problem in doing it. At present, Chinas high-end bearing localization rate is as low as 0. How can we get users to trust and start using domestically produced bearings? The Science and Technology Commission system can indeed provide some assistance, but the models and production capacity of aerospace rockets are ultimately limited, and the usage conditions they are intended for are too monotonous. ?For example, the core bearings of a turbofan engine are actually 5-6 sets, and they are highly similar between aircraft engines of the same type, so not much data can be provided. Compared with the civilian field, which has a wide variety of products and a huge market, the military industry has inherent shortcomings in this aspect. But the environment in the civil sector is much more complex. NTN, SKF, FAG and other foreign brands of high-end bearings have formed complete and solid market barriers. Whether from the perspective of stability or profit distribution, users will not easily choose to change suppliers. ?This is actually a problem faced by China in many fields - High-end users dont care about cost-effectiveness at all. As long as they have performance and stability, once they form a habit of using it, they wont change it unless they have to. Price reductions and other means are completely useless. Even in the previous life, many industries in China, especially basic industries, would not have been so easy to develop if King Dong didnt push it. So for now, we can only start slowly with state-owned enterprises. Considering that none of the three bearing groups are affiliated to the Science and Technology Commission and had no business contact with Chang Haonan in the past, the latter finally decided to send a letter of inquiry in the name of the general manager of Torch Company. To his own surprise, all three inquiry letters were responded to on the same day. The content of the reply is basically the same Send someone to the capital immediately. Chang Haonan has never seen such an attitude and efficiency in his entire life. It went really smoothly beyond expectations Chang Haonan held three faxed reply letters in his hand, with a hint of surprise in his tone. "Of course. Although our company has not had direct business contact with them and does not belong to the same system, you are a member of the expert advisory group in important scientific frontier fields of the 973 Project. All domestic companies and institutions with some R&D capabilities, how can we You have to give me some face. Song Jingming, the office director who sent the reply letter, paid the right compliment: "Besides, this matter itself is of no harm to them. If I were the person in charge, I would definitely rush to do it, for fear that the other two companies would take advantage of it." "That''s right." Chang Haonan put the things in his hands aside and turned to look at Song Jingming: Then Lao Song, please go arrange the reception and the meeting. The specifications can be a little higher, but it must be as soon as possible. As the development of Torch Company gradually gets on the right track, other departments besides technology are gradually enriched. Fortunately, the de-administrative reform of state-owned enterprises has not yet been completed, and even grassroots units can harvest wool from other places. Song Jingming was transferred from the General Office of the Science and Technology Commission. For this reason, I even upgraded him by half a level. ?Of course, because Chang Haonan is not planning to build a large and comprehensive company, many departments are still relatively thin. ?For example, there are only two people in the administrative office including Song Jingming, so many things require his own hands as the director. There is only one Yang Huimei in the marketing department. Fortunately, she has many graduate students under her, who can help share some unimportant work. It should be said that Song Jingmings guess is accurate. ?When Zhang Xu, the head of R&D from Bingcheng Bearing Group, walked into Chang Haonan''s office and found that his colleagues from Luoyi and Fuzhou were already sitting inside, his face turned pale at that time. ??If the other two families have secretly negotiated something while he was away, he will definitely not get any good results after he returns. You know, before departure, the general manager of Ice Axis Group specially called him to the office and repeatedly warned him that although the meeting was small in scale, it was of extremely high importance. The general manager Chang Haonan who presided over the meeting was young but regardless of his ability. The relationship is still very good. All the institutions and companies that had a relationship with this person in the past took off. To sum it up, if you dont get any competitive technology when you go to the capital this time, then you should stay in the capital and never come back. In just a few seconds, Zhang Xu had already started thinking about how to find his next job. ?At this time, Chang Haonan cleared his throat: Since Zhang Gong has arrived, lets get started. I have several technical documents related to bearings here. Let the three of you take a look at them first to see if you are interested in this project. ?Chang Haonan motioned to Song Jingming to send the document to the three people sitting on the sofas on both sides. Zhang Xu''s expression finally softened a little. Judging from his posture, he shouldn''t have missed anything important. ?However, the relaxed mood did not last for a few seconds when he felt his heart suddenly shrink again after receiving the technical documents. The document begins as a series of performance requirements for bearings. As the R&D director, Zhang Xu can see the difficulty at a glance. High speeds of more than 30,000, operating temperatures of more than 250C, irregular and extremely high levels of external overload, plus a life requirement of no less than 3,000 hours... In another situation, Zhang Xu would probably have asked why you didnt go to heaven? ?Of course, what he didnt know was that this bearing was really going to go to heaven. ?At the same time, the other two people also looked embarrassed. ?Although the three of them have their own strengths in specific fields, their overall levels are not much different. Problems that one finds difficult will not be easy for the other two. The first requirement is so difficult, what will happen next... With this thought in mind, Zhang Xu mustered up the courage to turn to the second page of the document... What the fuck? The second page is not another technical requirement, but the specific design of this bearing. In other words, Chang Haonan did not want to give them questions, but let them see the process of solving the problems. ?Then, the more he read this document, the more shocked Zhang Xu became. He finally understood why his general manager had to let him come on this trip. (End of this chapter) Chapter 443 Good shafts use good steel Chapter 443 Use good steel for a good shaft As a senior technician from a bearing company, Zhang Xu is naturally aware of the weight of the design document in his hand. Designing parts according to process requirements is a basic skill in the mechanical design profession. The group''s annual assessment of the ability level of technical personnel will have questions of similar nature. ?Of course, considering the time limit for answering the questions, the difficulty is definitely incomparable. In fact, if he was asked to lead a design team to do this job, it would probably take a few months to complete it. But what about the process in between... ?That will definitely require a lot of trial and error, iteration and optimization. ?However, there is no such content in the design document in front of me. Instead, it is one step at a time, setting the parameters at the beginning seemingly at random, and then finishing it logically until the end. guess what the result was? Hey, he really got it right! ?? And its perfect. ??If someone in the group ability level assessment saw someone hand in such an answer, Zhang Xu would most likely be directly judged as cheating. ?In this case, its either because you were lucky enough to choose the correct answer among the infinite possibilities with your eyes closed. ?The smoke coming out of the ancestral graves is not enough, the ancestral graves must be burned. ?Either you know the answer in advance and just write down the steps. In fact, even if they cheat, few people dare to do so blatantly, and it has to be done symbolically for a few rounds. However, the person who came up with this thing was Chang Haonan after all. They have already become famous in their own fields of study, so there is no need to travel thousands of miles to call these three little people over for fun. Zhang Xu raised his head and glanced at the other two colleagues next to him and across from him. From their expressions, Zhang Xu knew that everyone must be thinking the same thing now. I was very curious, but I didnt know how to speak for a while. Finally, it was Zheng Chaoqun, the technical director from Dual Axis, who first broke the silence. ?Fuzhou Bearing is the big brother of China''s bearing industry, and it has barely any relationship with Chang Haonan - the 16 sets of bearings used in the previous experiments were purchased from them. "Mr. Chang, although judging from the results, there should be no problem, the design method above is indeed not in line with our...even the habits of foreign companies..." Its okay if it doesnt match. ?Chang Haonan said something that was a bit difficult to pronounce. Then, while the three of them were still stunned, they asked again: You must have known about the TORC Multiphysics software launched by our company, right? I remember that your three names are on the trial list. The first person to react was Zhang Xu: "Of course, our group has recently been manufacturing a large-diameter tapered roller bearing for Shengjing Heavy Machinery Group, which is used in super-large hydraulic turbines. At that time, we used this software to do structural analysis of the entire equipment. Although it was a bit confusing when I first started using it. Its too customary, and many operations require command statements, but the effect is really good. Obviously, although it has not been long since the beta version was released, TORC Multiphysics, a revolutionary analysis tool, has already been applied in many industries. ? Its just that everyones current imagination is still somewhat insufficient, or we are still in the process of learning and adapting to new tools, and it is not yet time to tap into the potential. It is mainly used in the fields of fluid mechanics or structural mechanics analysis. Have you ever thought that the functions of TORCMultiphysics can also be applied in the field of mechanical design? For example, dynamic analysis of the working state of bearings? ?Chang Haonans words can be described as a sentence that awakens a person from a dream. ifier "Mr. Chang means that we can also use this method..." Representative Luo Zhou, who had been silent just now, asked tentatively. ?However, the beautiful dream was quickly broken by Chang Haonan: Now, I can design it this way, but you guys probably cant. "Well" "this" ?Zhang Xu and Zheng Chaoqun scratched their heads in embarrassment. ?However, we know our own business. The R&D personnel of these companies actually do not have a deep theoretical foundation. I am afraid that it is indeed difficult to do things like dynamic analysis. TORCHMultiphysics comes with sufficient custom interfaces, so in theory, as long as I provide you with an accurate dynamic model, you can indeed obtain the corresponding dynamic results through programming. Chang Haonan, who realized that he seemed to have hurt the other party''s self-confidence, quickly explained: But this requires users to have a high level of input and output of parameters, and once an error occurs, it can easily cause unexpected damage to the source program. In the worst case, we may even need to send engineers to do operation and maintenance for you. "but." Speaking of this, Chang Haonan lightly knocked on the table: I hope to isolate the entire dynamic analysis and calculation process step by step, encapsulate the core modeling and solving process and transfer it to the background processing, so as to form a relatively independent tool module, which can greatly meet the professional level requirements of users. reduce." Zhang Xu and the other three people suddenly showed expressions of surprise. ??If the bearing research and development work can be as easy and free as the design document in their hands now, then many problems can be solved easily. ?However, Chang Haonan changed the subject again: Of course, this requires a long process, especially a large amount of actual data to optimize different bearing types and working conditions. Now, all three people understood: So, Chang always hopes that we can take advantage of our size and provide this data? Zheng Chaoqun asked. Thats right, but its more than that. Chang Haonan nodded: "To make good bearings, it is not enough to have excellent structural design. Material handling, processing technology, even user service, and brand building must also be kept up with. After all, I am not from the machinery industry, and I have a lot of skills. For other projects, it is impossible to devote all your energy to these communication and liaison matters. For example, the bearing you just saw requires better bearing steel than M50 to produce it to achieve the performance I need. Better than M50, its M50NiL The topic finally entered a category that Zhang Xu was familiar with: At present, the domestically produced special steels for bearings are relatively good, including Xingcheng Special Steel, Northeast Special Steel, etc. Overseas, the ones we cooperate with most are Japans Chunakajima and Datong Steel "etc" ?Chang Haonan raised his hand to interrupt him: The application field of my bearing is rather...special, and I dont consider importing steel from abroad. Furthermore, even if the steel is imported from abroad, it still cannot meet my requirements. We must develop higher-performance bearing steel. Better than M50NiL? Zhang Xu was obviously shocked by this statement: M50NiL is already a new steel material that SKF has only developed in recent years. We have not yet conquered the surface treatment technology from M50 to M50NiL in China, but at least there is a general direction. If the requirements are higher than this..." ?He hesitated for a moment: Im afraid it will be difficult to get it out in a short time. Thisit doesnt matter. ?Chang Haonan leaned back on the chair with a calm look: "You just need to report my needs to the upstream industry. Although I don''t do much research on metal materials, I can still give some qualitative judgments on issues such as carburizing, nitriding, and guide surface wear. of." (End of this chapter) Chapter 444 Torch Company’s first big order Chapter 444 Torch Companys first big order ?With the help of the three major groups of Bingzhuo, Luozhou and Fuzhou, Xingcheng Special Steel and Northeast Special Steel soon sent representatives to the capital to meet with Chang Haonan. After some simple greetings, Chang Haonan got straight to the point: "You two, our Torch Company has developed a set of design methods for chemical heat treatment processes. However, metallurgy is an asset-heavy project after all, with a large investment and a long return period. Moreover, our company''s expected business scope does not include this industry, so we We hope that this method can be transferred to solve the problem of high-end bearing steel materials that we most urgently need at present. The reason why it is called "method" is because this research is still in a very preliminary stage. Apart from Chang Haonan himself, there are only a few researchers poached from the Institute of Computing Technology of the Academy of Sciences in charge, so there is no research yet. form a complete software. After finishing these words, the expressions and eyes of the two other people made Chang Haonan feel that if there were not three bearing groups as intermediaries and various official endorsements, he would be regarded as a charlatan. Mr. Chang, this ?Fang Manchang, the chief craftsman from Xingcheng Special Steel, hesitated to speak, but there were so many flaws that he didnt know where to start asking. Metallurgy is a bit like herbalism or alchemy in some fantasy works, at least in the late 1990s. Despite a rudimentary understanding of the role of individual elements in alloy compositions and the impact of various material processing processes on properties, in general the development of new recipes is still highly dependent on experience, luck, and alchemists. Its the craft of a metallurgical engineer After the birth of atomic absorption spectrometers and flame atomizers, it is no longer possible to keep the specific composition of materials confidential. As long as a sample is available, any undergraduate can analyze it in a few days or even hours. However, even with the exact same elemental formula, different processes will bring about completely different material properties. ?Just in the field of chemical heat treatment mentioned by Chang Haonan, the commonly used methods can be broadly divided into carburizing, nitriding, carbonitriding, nitrocarburizing, composite diffusion, and refined surface diffusion... If it is based on the state of the furnace infiltration agent or the ion generation pathway, there are other classification methods. Each technology also includes dozens to hundreds of process parameters, resulting in almost unlimited possibilities. ?This is the secret that every technology-leading country or company keeps secret. For example, anyone can find out by just looking for a process manual that the national standard number of M50 steel is 8Cr4Mo4V, while the national standard number of M50NiL steel is G13Cr4Mo4Ni4V, but this does not mean that anyone can smelt the latter. . In other words, it cannot be smelted completely up to standard. ?After M50NiL steel was first developed by the Swedish company SKF, many capable peers quickly followed up on relevant research. Although the steel produced in different countries can ultimately be said to be M50NiL, there are still differences in specific properties. Although the steel produced in Germany, Japan, the United States, the Soviet Union (Russia) and other countries may not be exactly the same as the original Swedish goods, in general they have their own strengths, or at least the difference is not big, and they are completely usable. can be substituted for each other. The M50NiL steel produced by countries with relatively weak technology is significantly different from the original product in one or more aspects, and some of its properties are even worse than the M50 before treatment. Unfortunately, China is among the latter. In previous lives, it was not until the second half of the 2010s that the bearing steel used in domestic third-generation engines was completely replaced by imports. Now, someone actually said that he has the ability to "design" a heat treatment process. The first reaction of the two experts responsible for the process was disbelief. It is normal. ?However, before Fang Manchang could organize his next words, his question was interrupted by Guo Zhanwen, who came from Northeast Special Steel next to him: I wonder if it would be inconvenient for Mr. Chang to introduce the principles of your design method? Fang Manchang, who was only halfway through his words, glanced at the latter with a slightly strange look. ?This question is a bit strange. For their industry, there is a huge gap between understanding the basic principles and industrial practice, and even if they are spoken out, it does not mean anything. The principle is very simple. Chang Haonan didnt care too much and explained directly: "The driving force of chemical heat treatment is the chemical potential gradient. At a certain temperature and kept for a period of time, the diffused elements are first enriched on the surface. When the diffusion concentration reaches a certain value, they will begin to diffuse from the surface to the center, and the outermost The first layer is the penetration layer, then the diffusion layer, and finally the matrix. The entire heat treatment process can be roughly divided into three stages: chemical penetration agent decomposition, adsorption and diffusion. " The three steps can be used to establish a prediction and control model for carbon concentration distribution in the infiltration layer based on chemical reaction thermodynamics and Ficks diffusion law to achieve process design and optimization. Thats itthats all? ?Fang Manchang was waiting to continue listening, but Chang Haonan stopped here. "Of course it''s more than that... In fact, the most complete and accurate method in my expectation should be to directly conduct molecular simulations. For metals, it is actually atomic level simulation, and directly calculate the effects of different processing processes on metal material properties from the perspective of microscopic particles. However, with the current level of computers, it is far from possible, so I just mixed some molecular simulation ideas into it to make the entire chemical heat treatment process model more reasonable. " As for the specific technology... that is of course our companys trade secret. If I were willing to share it for free, there wouldnt be such a meeting today, right... Ohthats right Fang Manchang showed a somewhat embarrassed expression after being shouted back. Although Chang Haonans previous paragraph is sound and logical, it is still not convincing enough for people in the industry like him. But what they said later also makes sense - If I explain everything clearly to you, what business would you still do? ?But just when he was hesitating, Guo Zhanwen on the side had already skipped the intermediate steps: As expected of Mr. Chang, we have already heard about your ability and the level of your company. Then... when can we sign the contract? "ah?" "ah?" Let alone Fang Manchang, even Chang Haonan did not expect that the plot would take such a direction. ?He even prepared several calculation examples related to M50 steel in advance to enhance his persuasiveness, but now it seems... No need at all? Is trust between people so easy to achieve? You should also know that Chang Haonans asking price for this technology is 7.5 million yuan. For a technology that is not even a semi-finished product, although it is not considered sinister, it cannot be called cheap. ?His lowest psychological expectation was about 5 million, but he originally thought that there should be a bargaining process, so he must have quoted a higher price first. The result was of no use. As for Fang Manchang next to him, he was even more stunned. The special steel industry is not big to begin with, and there are basically no secrets in the industry. In addition, the level of domestic special steel is not very good. Compared with competition, there is more time for the industry to work together to keep warm, so each other basically knows each other''s situation. Northeast Special Steel was formed by the merger of the three original special steel companies of Dalian, Fushun and Beiman. It is much larger than Xingcheng Special Steel and has higher turnover. However, the profit situation is not optimistic. Among them, Dalian Special Steel has recently He had just been pulled back from the brink of bankruptcy, and it was far from like he could casually take out a huge sum of money. ??While taking a break during the meeting, Fang Manchang quickly used the excuse of going to the toilet and pulled Guo Zhanwen to a secluded corner. Are you going to spend the money like this? The two were college classmates before. Although they later entered different companies, they have always kept in touch and have a good relationship. This is the intention of our company. No matter what, this money must be given. ??Guo Zhanwen lit a cigarette for himself and the other person: For the sake of our old classmates, Ill explain it to you. "At the end of last year, the country suddenly started to launch a precision manufacturing plan. Mr. Chang was the general consultant of the entire plan at that time. Our three steel mills also took this opportunity to apply for the completion of the reorganization and merger, which led to the current Northeast Special Steel. " Everyone in the industry knew this story, so Fang Manchang took a deep breath from his cigarette, nodded, and motioned for the other party to continue. Two months ago, the country started working on the 973 plan again. Although I didnt see his name in the expert advisory group, guess what? I saw him again among the members of the expert advisory group in important scientific frontier fields. Is there such a thing? ?At this time, Fang Manchang also realized the seriousness of the matter. ??Although Xingcheng Special Steel also has a state-owned background, it is not a state-owned enterprise in the complete sense after all, and it is still not well-informed in all aspects. Guo Zhanwen finally concluded: "This Mr. Chang, no matter whether he has great ability or great connections, he can speak to both the Science and Technology Committee and the Science and Technology Committee. He is still related to two cutting-edge research projects. At this juncture, the company he manages wants to sell us a set of process design methods. How dare you say you dont want to buy it? " "I" Obviously, Fang Manchang knew what his old classmate said made sense. But he did not have such high authority before coming: I have to contact the company before I can decide... 7.5 million, which is equivalent to our profit in the first half of last year, and we will have to wait until the afternoon at the earliest..." "I can''t wait for you anymore. The company requires me not to show any hesitation. I advise you to act quickly..." ??Guo Zhanwen shook his head, threw the finished cigarette **** into the sink next to him, turned around and walked back towards the conference room. Looking at his back, Fang Manchang gritted his teeth and trotted towards a public phone outside... (End of this chapter) Chapter 445 Its really useful? Chapter 445 is really useful? ?The first big order of Torch Company was made somewhat inexplicably. Prior to this, Chang Haonan had even informed Yang Huimei to be prepared for longer-term negotiations. As a result, there was no negotiation at all. The previous TORCMultiphysics was still in the trial stage, so there was no charging problem, and even if it were to be charged in the future, it would still be a steady stream. The agreement reached with the three bearing groups also involves the need for both parties to jointly improve the algorithm model, and is a contract signed in the form of installment payment. So, these two 7.5 million are the first major revenue of Torch Company since its establishment. After finishing the meeting with Fang Manchang and Guo Zhanwen, Chang Haonan returned to the office and made a call to Yang Huimei. As the person in charge of the marketing business of Torch Company, the latter is naturally very concerned about this large order, which may amount to tens of millions. He has changed into formal clothes and been waiting in the office for a day. When he answered the phone, he became excited: Mr. Chang, do you need me to go out and negotiate the price with the other party? "Uh... No, no, I''ve already finished the negotiation. You can find someone to draw up a more formal contract. We will sign it tomorrow." Chang Haonan still felt a bit unreal at this time. Although the 15 million did not go into his personal account, it was indeed the largest amount of money he had ever directly handled. Are you done talking...? ?According to the plan previously agreed upon by the two, today should be just a preliminary contact, followed by formal negotiations between the two sides. But it was obvious that there was a huge deviation in the direction of the story, which made Yang Huimei a little stunned for a while. Coupled with Chang Haonan''s tone just now, as if his body had been hollowed out, she immediately had a bad feeling: Mr. Chang, you didnt agree to any harsh conditions, did you? No, no, in fact we havent discussed it at all. They have fully accepted our conditions and are now waiting to sign the contract. I dont know if it was Chang Haonans misunderstanding. He felt that the other partys tone just now was like a mother who is worried about her son being bullied outside... Comprehensive ?Yang Huimei suddenly had a doubt about her significance in this company: Mr. Chang, can you tell me how you discussed it... "I" ?Chang Haonan briefly reviewed the entire negotiation process today. "Well" ?Yang Huimei on the other end of the phone helplessly raised her forehead: Mr. Chang, we generally call your way of communication asking for bribes ?Chang Haonan is just sweating profusely. I didnt think so before, but now that Yang Huimei said it, it seems that it really means something like that. But it doesnt matter, as long as there is no problem with our companys products... I will handle the contract matters, dont worry... ?Yang Huimei quickly took over the rest of the work. A few days later, the process research and development workshop of Xingcheng Special Steel. ? Young process engineer Wu Hao took the newly optimized process flow chart in his hand, put a piece of M50NiL steel sample produced by the company into the multi-component co-infiltration furnace, and began to look at the parameters of the entire process with some numbness. This is the countless time he has conducted similar experiments in a year. Get the process parameters from the R&D director, then experiment, test, and report the results back. Since graduating from college last year and entering this company, Wu Hao has been doing such boring and repetitive work almost all the time. If it were not for the fact that the salary was not bad, he would not be able to survive half a day like this. "Option 1: Co-infiltration for 6 hours, diffusion for 3 hours, nitrogen, hydrogen, ethanol ratio 0.20:0.20:0.15... Spheroidizing annealing at 680C, first quenching at 850C, second quenching at 1100C, -80C Perform cold treatment and high temperature tempering at 545..." As required during the onboarding training, he repeated the entire process to himself. Wait...nitrogen? ?Wu Hao, who had already started to set the working mode of the multi-element co-infiltration furnace, suddenly stopped what he was doing and looked down at the data in front of him again. This is when I discovered that todays process parameters are completely different from before. I turned back to several other process plans and found that they were all quite different from before. Logically speaking, this kind of process testing should be done step by step. Even if you change your thinking, there should not be such a big difference in one day. ??And the process design is not that easy to change. Each time the design experiment is changed, the experiment must be stopped for several days. Its strange...Isnt it the wrong thing? ?He turned back to the first page of the process flow report and confirmed that the date was today and that it also had the signature of the chief craftsman Fang Manchang: Did Mr. Fang make a mistake? ?After hesitating for a moment, Wu Hao decided to call Fang Manchang: "Hey, Mr. Fang, I see that our processing technology today is completely different from before. I want to confirm with you. I''m afraid I just got the wrong one from you..." Fang Manchang, who was on the other side of the phone, was checking the data just submitted by another group of experimenters with his colleagues, and replied impatiently: "That''s right, that''s it. Just do as above." After saying that, he hung up the phone. In fact, Wu Hao is the least valued among the engineers under him. It has been more than a year since he joined the job, but there is still no significant progress. He has to ask many questions. Fortunately, his basic skills are good, so after the probation period, I still got a full-time job, but I was usually assigned to the job with the least importance. ??Although Fang Manchang didn''t have high expectations for the process design method he brought back from Chang Haonan this time, after all, it cost a huge sum of 7.5 million, and he couldn''t just throw it aside even for the sake of money. ?So he spent a few days working and found several typical craft plans based on that method, and then casually gave them to Wu Hao to do. Even if you cant do it, you should still collect data. Is it the process you designed yesterday according to what new method? ?The colleague sitting opposite Fang Manchang held a magnifying glass in his hand and was looking down at the dense data on the form. He asked without raising his head. Yes, Wu Hao asked me if I had picked it up by mistake. It was indeed different from the ones he had made before. ?Fang Manchang shook his head. He felt that he might be engraved in the development history of Xingcheng Special Steel because of the decision he made a few days ago. Just in a negative and typical way. You too, you actually took that thing seriously and even worked overtime for a few days to analyze it While the colleague opposite was talking, he used a red pencil to circle a few from the pile of data, then put the magnifying glass aside and rubbed the corners of his sore eyes: It still doesnt work. The average mass wear rate has exceeded 5.5g/Nm. This is still in the oil state. I dont dare to think about the data in the oil-off state..." There is no other way. Lets send this batch of samples for X-ray energy spectrometer analysis to see the wear and wear debris morphology, Fang Manchang has become accustomed to such results. In fact, after Xingcheng Special Steel produced qualified M50 steel, it began to study the heat treatment plan of M50NiL. However, after a few years, the progress cannot be said to be satisfactory, or at least it can be said to be standing still. 70% of the samples have overall performance that is not as good as the old M50 material, and the remaining 30% have not improved much. Occasionally, there are a few outstanding features, but there are also fatal problems of one kind or another. It''s all waste. ?However, he knew that metallurgical technology was advanced through so many trials and errors, so he could endure the loneliness. Lets analyze the next group. He said as he put on a new form. ?The colleague sitting opposite sighed and picked up the magnifying glass again. ??The boring work continued until late that night, and even two meals were delivered by people from the logistics department. ?Fang Manchang finished reviewing the last experimental data, stood up from his chair, stretched and prepared to get off work. ?When he first got up after sitting for a long time, he felt that his eyes were a little dark, and he held on to the table for a while before recovering. When he stood up straight again, he found a panting man standing at the door. Wu Hao? Fang Manchang recognized the other party: What are you doing here so late? Just hand over the data tomorrow morning. Its time to get off work. No, Mr. Fang, you are really amazing... ?Wu Hao panted and put the A2-size data record in his hand on the table: The test results of these pieces of steel today are simply amazing "ah?" ?Fang Manchang was about to take off his work clothes and put on regular clothes, but he stopped halfway through unbuttoning: What is the result? The process plan you gave me in the morning, there are 5 samples in total, and the worst test result is much better than the ones I made in the past..." Thank you Mr. Fang for giving me such a promising plan. I have always felt that you were biased against me. Its really ?Fang Manchang could no longer hear what Wu Hao said. He quickly opened the test results on the table. Of course, it was impossible to read the dense data in a short time, so he looked directly at the wear resistance part that had been bothering him before. 0.114g/Nm, 0121g/Nm, 0,094g/Nm What is your testing method? When the colleague next to me looked at the data in front of him, his first reaction was that the measurement was wrong. ?Wu Hao, who had just expressed his gratitude, was stunned for a moment, and then immediately replied: "This is the above requirement. The driving wheel curvature of the RCF3 rolling contact tester is R7mm, the diameter is 200mm, the applied load is 5.7GPa contact stress, the rotation speed is 30000r/min, 4050 aviation lubricating oil is used and the oil supply is sufficient. The rolling contact test was carried out on the samples under normal temperature test conditions. The sample specifications of the two materials are 2050mm..." "Mr. Fang, although the durability test has not been done and the metallographic structure has not been observed, judging from the surface data of wear resistance, corrosion resistance, surface hardening degree and ease of processing, this thing is simply a new generation. As for metal materials, when I was in school, I tested the M50NiL steel imported from Japans Datong Steel, and many of its properties were not as good as this..." Fang Manchang, who had not spoken for a long time, had only one thought in his mind: TMD, is this thing really useful? (End of this chapter) Chapter 446 Expansion of high-end steel production tenfold! Chapter 446 Expansion of high-end steel production tenfold! ?After being dizzy for a long time, Fang Manchang recovered from the stagnation of thinking, but he was still a little unsteady on his feet, so he had to sit back on his chair unsteadily and took several sips of herbal tea. ?His current mood is exciting. After all, after so many years of hard work, he has finally taken down the M50NiL bearing steel that has been difficult to conquer for a long time, although this matter does not seem to have much to do with him. Happily, I followed Guo Zhanwens advice in the capital. The 7.5 million was worth it. I am afraid that if this deal had not been reached on the first thought, I am afraid that Northeast Special Steel will always be overwhelmed in the future. ? I feel ashamed. People often quote half-sale, half-free prices like 7.5 million, and I actually think that the other party is asking for a bribe. ?There is also regret. There was once a very good opportunity to hug my thighs in front of me, but I didnt cherish it. Now that I lost it, I regret it... To sum up, it is very complicated. A real mixture of flavors. Um...Wu Hao, have you started doing the fatigue life tests on these five new samples? ?Fang Manchang put the enamel water cup back in its place, tried to pretend that everything was under control, and asked Wu Hao next to him. Fortunately, the latter was still immersed in the gratitude of the other party''s chief craftsman and did not notice the other party''s abnormality just now: Not yet. The basic performance test results are really good, so Ill get it for you after it comes out. And didnt you just say youre not in a hurry? Well start tomorrow morning Worry! Its urgent! Fang Manchang stood up abruptly and fastened the buttons on his work clothes again: Lets go, Ill go with you, lets start doing it overnight! After speaking, he picked up the experimental data on the table and prepared to leave. After arriving at the door, he suddenly turned around and looked at his colleagues who were still stunned at the original position: Quick, what are you doing in a daze? Come with you! The moon was dark and the wind was high. The three of them rushed to the test workshop not far away by using the faint light from the street lamp... The time required for fatigue life experiments is very long. Even if it is an equivalent accelerated test, it will take at least more than a week to simulate a working life of thousands of hours in actual conditions. If it is repeated in multiple groups, it will take even more time. Increased exponentially. Even though there is no need to do anything during the whole process, as long as you just wait for the results to come out, according to the regulations, someone still has to watch. Therefore, although it was already late at night when the three people walked into the testing workshop, there were still many testers working. In other words...fishing. A man saw Fang Manchang walking in with striding steps, he quickly stopped the game on the computer screen and minimized it. Mr. Fang ??But before he could say the welcome words, Fang Manchang directly ordered categorically: Stop all ongoing fatigue life tests immediately! Stopstop? ?Several operators looked here almost at the same time, with expressions of disbelief on their faces. If the fatigue life test is interrupted, all previous tests will be in vain. Yes, stop, and then check and maintain the equipment. I will send a batch of new samples over later. Everyone and the equipment will go to test the new samples. I will sign! ?Fang Manchang had no patience to wait for the repeated test results at this time, but according to the test standards, the confidence must be guaranteed, so he directly decided to conduct multiple sets of experiments simultaneously. As for the samples currently being tested... It doesn''t matter anymore. Compared with the batch of materials Wu Hao just made, they are all waste anyway. ?Those who can work in this test workshop are all old employees of the company who have at least a few years of work experience. Although they are good at fishing and paddling, when it comes to doing work, they are still nimble in their movements. ??The initial little commotion quickly calmed down, and a group of people began to prepare for a new round of testing in an orderly manner. ?Fang Manchang looked at the test workshop in front of him with almost bright eyes, and his mind had even begun to think about the next move. Although China''s steel production ranked first in the world in 1996, the statistics were for crude steel. When it comes to high-end steel, the output is very low. ?Especially for bearing steel/gear steel such as M50NiL, the complex post-processing process greatly limits production efficiency. In addition, in the past, China could only produce relatively low-end special steel, and the market feedback was average, so everyone would deliberately reduce production capacity in the past. Now, however, the situation has changed. Therefore, in a short period of time, whether it is our own Xingcheng Special Steel or our friend Dongbei Special Steel, the most important task must be Expansion of production. ?Thinking of this, Fang Manchang turned back and looked at his colleague Xu Chengcheng who was following him. "Lao Xu, please hurry up and prepare a report for the general manager''s office in the next few days. If the test results are ok, you will hand it in as soon as possible. It is recommended that the group prepare funds, and of course apply for and public relations from above. , strive to expand the production capacity of special steel to ten times the current level by this time next year! How muchhow much? ?Xu Chengcheng looked like he had seen a ghost. Ten times, or at least ten times! Fang Manchang said confidently: If our steel is successfully put into production, domestic bearing companies will definitely rush for it, and may even be exported to other countries. Ten times the production capacity is at least 10 times! ??He has inevitably begun to look forward to the wonderful scene of domestic special steel punching Chun Nakajima and kicking Krupp. ?However, from the perspective of Xu Chengcheng, who does not know the whole situation, making such a crazy suggestion is no different from writing a resignation letter directly: No, Lao Fang, I know that the performance of this steel should be very good, but we should also do it step by step, right? Xu Chengcheng, who was not far behind him, wiped the sweat from his forehead and felt that this plan was a bit too radical: If you think about it, for the special steel our group produced in the past, we had to ask our grandparents to buy some. Now, suddenly, a brand new grade of steel is introduced, which is said to be better than M50NiL. It will take some time for the market to accept it. " "What''s more, for a new material, after the bearing and gear parts manufacturers take it back, they have to conduct further post-processing of the product. This also takes time, not to mention that the interest relationships in the bearing and gear industry have already It is very stable. Opening the market is not just a technical issue. As for exports, it is even more unpredictable. How can those developed countries accept our steel so easily..." Lao Xu. Xu Chengcheng was interrupted by Fang Manchang halfway through his long speech: I understand what you are saying, but I dare not say anything about other groups. At least the three groups, Bingzhuan, Luozhou and Fuzhou, will definitely fully support our new steel products. It will be absolutely easy to acquire ten times the production capacity! The expression on the former''s face was clearly one of disbelief. How many dishes have been consumed? ?After a long time, Xu Chengcheng tentatively spoke again: If these three companies all use our bearing steel, wouldnt their domestic market share reach 100%? ?At first it was just a casual comment, but in the end Fang Manchang replied seriously: Of course its impossible to be 100%, the most optimistic scenario is only 50% Then he added half a sentence in his mind: After all, Northeast Special Steel is probably planning to expand production... 5 Xu Chengcheng said to himself that you are really humble, but he was worried that the tone of his true words would be too sarcastic, so he swallowed it in the end. Dont worry, you signed my name in the end. Even if something happens, I will be the one to bear it. You just need to write down the contents of the report. Fang Manchangs confidence is certainly justified. After all, the contact between their two special steel companies and Torch Company is the three bearing groups that are the matchmakers. ?The other party made it clear at the time that the imported M50NiL did not meet the requirements, so they needed to develop a new special steel material. ??If you dont buy it, why go through all this trouble? But the details of this matter are too complicated, and he himself looked like a clown at the time. The fewer people who know about it, the better. So Fang Manchang thought over and over again and decided to send Lao Xu over. When the report is submitted, just explain it to the general manager. (End of this chapter) Chapter 447 Ten times the lifespan, is this really not bragging? Chapter 447 Ten times the life span, is this really not bragging? ??When Chang Haonan received a call from Jiangsu Province, he had just finished a meeting with Du Yishan and Liu Zhenxiang The time has come to the end of August, and it is time to submit the report on the solicitation letter jointly issued by the three ministries and commissions. At that time, opinions were solicited mainly on three matters. The first is to split the Aviation Industry Corporation into Group One and Group Two. This is also the focus of the discussion among the three. The groupization and administrative de-administration reform of state-owned enterprises is a major trend of the times and is definitely beneficial to the country and the people in general. And this split is not just for the aviation industry. In fact, all the five original administrative corporations (aviation, aerospace, weapons, shipbuilding, and nuclear industry) will be split into two and become subordinate to the Science and Technology Commission. of the top ten groups. ??Whether it is Chang Haonan, who is a reborn person, or the other two senior academicians who are wily and wily, they all understand that this cannot be changed by a few people. However, the method of splitting can be discussed. From Chang Haonan''s hindsight, the split of the aviation and shipbuilding industries was not considered a success. The separated Aviation Industry Groups 1 and 2, as well as China Southern Shipbuilding Industry Corporation and Beizhou Shipbuilding Industry Corporation, were all re-merged in the following ten years. circle, and finally returned to the starting point. Facts have proved that two companies with completely overlapping business scopes cannot truly achieve the expected role of "mutual promotion in competition". Instead, they will generate a lot of internal friction, which is not a reasonable way to split. The reform methods of the nuclear industry and aerospace industry are much more reasonable. They were split into Nuclear Industry Group/Nuclear Industry Construction Group and Aerospace Science and Technology Group/Aerospace Science and Industry Group based on different businesses. After surviving the initial unstable stage, they gradually began to extend their business to what the other party was good at in the past. In the field, healthy competition has been achieved to a certain extent. Therefore, the three people finally reached a common opinion and suggested that the Aviation Industry Corporation should be divided into two parts based on its business scope and become the Aviation Industry Group and the Aviation Power Group. The second is to conduct a nationwide merger of airlines. This actually has little to do with the aviation industry. The three of them are not business or management experts. Therefore, they only suggest that an airline operated by the Air Force or the aviation industry system should be retained, similar to Anton Nov Air or Volga-Dnepr Airlines ensure that independent models have the most basic market. The third is to select a site to build a brand new aviation industrial park dedicated to serving the international aviation industry chain. According to Du Yishan, currently among several candidate cities, more candidates support Luzhou. In the end, the three of them did not reach a consensus on this matter. It can only be said that Luzhous economic level, industrial base, and transportation convenience all meet the requirements. Geographically, it is neither south nor north, and its policies are relatively biased towards manufacturing. In short, it is an acceptable choice in all aspects. ?Until Chang Haonan picked up the phone receiver, he was still thinking about the conversation between the three people just now, and at the same time, he was reading a document that Yang Huimei brought to himit was the user agreement for the TORC Multiphysics software for the European Union. Hello, I am Chang Haonan. Mr. Chang, our new bearing steel is ready! Its even better than the original steel from SKF! The voice on the phone was a little distorted due to excitement. In addition, Chang Haonan was already in a state of multitasking and his mind had not turned around for a while, so he was stunned when he heard this sentence: "Who are you" I am Fang Manchang, the chief craftsman of Xingcheng Special Steel, whom we have met before. ?Fang Manchang then remembered that he had not reported his identity yet. Chang Haonan finally came to his senses: Oh, it turns out to be Mr. Fang, here you go No, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no Fang Manchang on the other side of the phone quickly interrupted Chang Haonan and corrected the latters title: Mr. Chang, just call me Xiaofang. Then what ?Fang Manchang looks to be in his forties. Even considering that the metallurgy industry is quite tiring and ages quickly, he must be in his thirties. It is really difficult for this little Fang to say "hmm". ?It doesnt matter what the other person is like, but you cant call him old. Fang Gong, have you guys come up with new steel now? So quickly? Although we are very confident in our methods, it has only been less than two weeks since the deal was concluded, and it seems that it is still too fast to complete sample production, process selection and testing. "Hey, this is what you brought out, Mr. Chang. We must attach great importance to it. When we come back, we will make calculations based on some of our past experiences. Then we will stop all other research and testing at hand and concentrate all our efforts on this. One direction is dedicated to tackling key problems, and it was completed this morning..." ? Fang Manchang was chattering in excitement, without much emphasis in his words, but he did not forget to "beautify" the process of researching new steel materials. In fact, after he came back, he just followed Chang Haonan''s method, relied on intuition and experience to select a few values ??and gave them to the least popular people under his command. ??Who would have thought that if they were lucky enough, they would find the dessert directly. If you are not lucky, even if it is finally developed, it may be much slower. This is also one of the things that Fang Manchang fears. ?Of course, it is impossible for him to tell these details. So, how exactly does it perform? Chang Haonan understands that as a researcher, after experiencing the darkest moment for many years, he is excited to finally see the dawn, and he cant wait to tell the whole process to everyone he meets. But he really has no such leisure now. After all, we are also in a hurry here. "Uh... the performance is very good. We simulated up to 20G cycles under the experimental conditions you gave. With the same failure probability, the cycle life is almost 40 times that of the past M50 steel, even longer than the previous one we bought from SKF. The M50NiL samples received are more than twice as high. In addition, several key basic data have fully reached or exceeded the level of M50NiL. We are sorting out the detailed test results and will send them to your mailbox this afternoon at the latest... ? ? Okay, okay Chang Haonan nodded and breathed a sigh of relief: Then, where is the bearing manufacturer When our data comes out, we will send them a copy when we send it to you. Fang Manchang quickly replied. ?Once the results came out, the first person he contacted would definitely be Chang Haonan, and the rest, even the general manager, would have to wait a little longer. ?Furthermore, this also seems to indicate that Northeast Special Steel''s actions should not be as fast as his, otherwise the three major bearing groups should have already received the letter. ?This made him feel at ease immediately. The three special steel plants in Beiman, Fushun and Dalian were all in a state of poor management and close to bankruptcy last year. They just merged to form Northeast Special Steel this year. Naturally, there are still a lot of troubles to be solved. However, no matter what, the other party has greater production capacity and scale. It is much larger than Xingcheng Special Steel, which was only established two years ago. If it takes the lead in research and development, even if the market is large enough in the short term to avoid direct conflict between the two parties, it will inevitably suppress its own side in the long run. More importantly, there is no harm without contrast. It would be bad if the progress is too much slower than that of the opponent, making the boss feel that he does not take it seriously. Chang Haonan put down the phone and just turned his eyes back to the document in his hand when the next phone rang. Hello, Mr. Chang, I am an engineer from Northeast Special Steel, Guo Zhanwen Yes, we have sent the test data to your email, and three bearing groups have also sent it, but we havent gotten through to you yet... Yes, the performance is better than M50NiL The content is similar to the previous call from Manchang. "Mr. Chang, I now feel that the price of 7.5 million we offered before was a bit too low..." ??Yang Huimei was sitting next to her, waiting for Chang Haonan to sign. Although she didn''t understand metallurgy, it was easy to tell from the tone of the phone call that both the families on the other side felt that they had gotten a big deal. According to her experience, this situation often means that the price is low. "No, the method I gave is specially optimized to face this problem. The further the grade of the base material is from G13Cr4Mo4Ni4V, the worse the qualitative accuracy will be, and it can only cope with a relatively simple chemical heat treatment process. The value is basically only one or two times. Besides, we must cultivate good users first, and we cant catch all the benefits. If they dont make any money, how can they give it to us? We have to wait until the pigs are fattened before killing them... Chang Haonan said as he picked up the user agreement text in his hand again: Just wait, they cant live without us in the future... at the same time. Liao Province, Fuzhou Bearing Group. ?Technical Director Zheng Chaoqun also just put down a phone call. Shortly afterwards, he was about to go to the cafeteria for lunch and sat back in front of the computer. Master? ??The apprentice who had already reached the door turned back and looked at Zheng Chaoqun with doubtful eyes: Didnt I say that your favorite roasted chicken nuggets are available in the cafeteria today The latter looked at the webpage being refreshed on the computer and hesitated for half a second, then took out a five-dollar note from his wallet: You can help me pack a lunch box and bring it back. I have something to do and I wont go eat. "Oh well" A few minutes later, he finally opened the company''s mailbox using an unskilled operation. Thats four times...thats not right... ??He adjusted his glasses on the bridge of his nose, moved very close to the screen, and counted the numbers on the table several times. Four...forty times? Zheng Chaoqun''s hand subconsciously slapped on the keyboard, leaving a string of letters of unknown meaning in the reply box below. "Mr. Chang...are you really not bragging?" ? He ??immediately thought of the latters statement about increasing the bearing life by an order of magnitude when he had a meeting with Chang Haonan in Beijing. At that time I thought it was just a casual talk. Now it seems that people are still too modest. ?Although there are many factors that limit the life of finished products, the fact that the material life has been increased by 40 times does not mean that the final bearing will have the same level of improvement. But no matter what, what was the shortest board in the past suddenly became the longest board now. 10 times that is certainly more than enough. (End of this chapter) Chapter 448 Are you sweating profusely, Tsubakijima? Chapter 448 Are you sweating profusely, Chun Nakajima? Zheng Chaoqun is very sure that the other two colleagues must have received calls and emails with the same content. So now, everyone is on the same starting line. Cant fall behind! A strong sense of urgency arose spontaneously from the bottom of Zheng Chaoqun''s heart. In the past few decades, Fushaft has always been the largest and most powerful bearing manufacturer in China. ??However, Bingcheng Bearing and Luoyi Bearing are also at the same level and are not far behind. In front of the first-class foreign bearing manufacturers, the three companies have little competitiveness anyway. ?But now, an opportunity for ascension lies before you. If you seize it, you will not only be able to directly join the top international level, but may even have the opportunity to reshuffle the bearing industry around the world. But if you cant catch it or fall behind... ?Then Im afraid there wont be a chance to turn around in a short time. Thinking of this, Zheng Chaoqun directly grabbed the phone next to him and dialed the internal number of the group general managers office... After chatting for a few words, he hung up the phone, printed out the data sent by email, and prepared to go out with a few pieces of paper. When I left the office, I almost bumped into the apprentice who had just returned. Master, your food... Just put it on my desk! For Zheng Chaoqun now, eating is already a secondary matter. He needs to launch a large-scale bearing research war! Although Chang Haonan originally called the three of them over to produce bearings for aero-engines, they did not just come up with a bearing design drawing, but a set of design theories that, although not yet complete, have great potential. . They say it is better to teach people how to fish than to teach them how to fish, but Chang Haonan taught more than just fishing skills, and even prepared fishing nets and trawlers. In this case, Zheng Chaoqun felt that it was time to consider expanding the scope of business. Bearings used in aerospace engines are indeed of high quality, but their scale is ultimately limited. ??Moreover, the three of them compete simultaneously. Even if it is really taken down, the business volume will only be a drop in the bucket for their Fuzhou Group. As a symbol of the group''s honor, it is okay, but it is definitely not expected to support the entire group. If you really want to become bigger and stronger, gain a reputation, and improve user perception, you still have to go to the real market. The same plot was played out in two other places almost at the same time... Compared to the spare parts manufacturers in the middle reaches of the industrial chain, it is actually the materials field that is further upstream that is the first to notice changes in the industry. Nara, Japan. Minister Guangtian, this is the order data submitted by the Chinese market last month. ?The secretary knocked on the door lightly and placed a thick stack of documents on the desk of Hiroshi Hiroshi, deputy director of the marketing department of Chunakajima Group. After all, it is already the beginning of September, and orders for the fourth quarter and even next year have already been submitted. With China''s continuous opening up and economic development in recent years, its domestic demand for precision bearings has increased. Compared with directly importing finished bearings from companies such as NTN or Koyo, it is necessary to purchase key semi-finished materials and then assemble and produce them domestically. The form is obviously more favored by the Chinese people. Although the final product quality is still far behind the high-end models of the real original factory, the cost is lower, and it can be regarded as domestically produced on paper. Therefore, Chun Zhongjimas Chinese business has been running for more than 40 consecutive months. The year-on-year growth is at a double-digit level, and the status of Guangtian, the deputy minister responsible for China''s market direction, has also increased. In fact, slightly larger bearing or gear manufacturers will have their own special steel production capabilities. For example, Fuzhou Bearing Group Special Steel Co., Ltd. is a subsidiary of Fuzhou Bearing Group, and M50NiL steel was even originally produced by bearings. Developed by the specialty steel division of manufacturer SKF. However, these companies or departments are basically only responsible for the post-processing of finished or semi-finished steel products, and are not responsible for the process from iron ore to steel (low added value, too much investment), and their scale is relatively limited, so sometimes they still have to start from Specialized special steel companies such as Xingcheng or Datong purchase raw materials. Chunakajima Special Steel is quite special. It is also part of the Chunakajima Group, which produces bearings. However, later on, the side business accidentally developed better than the main business, and it began to gradually get involved in the field of raw material production, which is considered a cross-border business. Business. ?About five years ago, he took a fancy to China, a market that was not very eye-catching at the time. In order to smoothen the relationship, he almost sold everything and transferred himself to his current position. ? Facts have proved that his big gamble was right. Due to the explosive development of the Chinese market in recent years, Chunzhongdao intends to separate the Chinese business and establish a Chunzhongdao Huaxia headquarters. ?The group has even sent people to reach cooperation with China and start building the first local factory in China. Hiroshi Hirota is naturally the only candidate for the head office. ?As long as this step can be taken, it is tantamount to reaching the sky in one step. It may even be possible to use this as a springboard to directly enter management in the future. ?However, it was almost time to get off work, and two foreign trainees who had just been recruited asked him to go out for drinks in the evening. Naturally, Hirota didn''t have the patience to flip through page after page of such a thick document. ?So after briefly reading the first two pages, he turned to the end impatiently. The big guys above wont care about the complicated data in the middle, so you can take your time and look at it. He is going to fill in the most critical business scale and growth status into the report at hand, and then go to enjoy the nightlife. Compared with the data in August last year, it increased by 11.4% year-on-year "etc" After Hirota copied this number, he realized something was wrong. He raised his head and asked the secretary who had just sent the materials in: Why has it dropped so much? The data of 11.4% is certainly not bad. In fact, if it were placed elsewhere, it would definitely be worth popping the champagne. But in the first eight months of this year, Huaxia''s year-on-year business growth was around 15%. How come it dropped by almost a quarter at this critical juncture? ?Hiroshi Hirota knows that his future and destiny are tied to the Chinese market, so he must not make any mistakes. The main reason is that several previous major customers have reduced their order quantity in the first quarter of next year. The largest one, Fuzhou Bearing Group, has booked only half of the total order quantity in the first quarter of this year. Hearing this heartbreaking data, Hirota''s body shook violently, and the tip of the long knife pen in his hand banged on the table. This was a gift from his father when he was promoted to Dongda University, and he has been using it for nearly twenty years. ?But at this time, Guangtian could no longer care about that much. He quickly turned back the report and quickly found the part that the secretary said. The main ones affected are steel **** and rollers... Hirota Hiroshi took a deep breath. ??These are the two most important products of Chunakajima Special Steel. Not only China, but even Japanese high-end bearing companies such as NSK, NTN, and Fujikoshi are their customers. There must be no problems. After hesitating for a moment, he quickly made a decision. Its a dove tonight. After all, they are just two trainees. How can they be as important as his position as head of the China Headquarters? Hirota signaled the secretary to leave, then took out his mobile phone and sent a group text message to several colleagues who were also tied to the Huaxia Market: Meet you at the same place tonight at Ms. Kanas shop. (End of this chapter) Chapter 449 Material breakthrough, everything is alive Chapter 449 Material breakthrough, everyone is alive Not long after, Chang Haonan received the test results from Xingcheng Special Steel. Download at the fastest speed and then open it. ?The new computer given to him by the school has good performance and can even open two forms at the same time without lag, which makes his office experience more than a little better than before. For a person who has become accustomed to modern office methods, holding several printed paper forms every time and comparing them one by one is simply an eyesore and a brain injury. These two materials seem to be somewhat different After extracting the key data and comparing them, Chang Haonan rubbed his chin and thought. Metallurgy can be said to be an open question with no standard answer. At least not yet. Therefore, although the new materials produced by Xingcheng Special Steel and Northeast Special Steel can be regarded as having the same origin, after all, they are all derived from the set of process design methods provided by him, the situation is similar to that of other special steel companies. , due to differences in past experience and habits, the final specific process will not be exactly the same. Generally speaking, Xingcheng Special Steels products are more suitable for bearings. The material surface hardness and core hardness of Northeast Special Steel are greater, which is relatively more suitable for making gears. ?Of course, the difference is definitely not too big, and there is no big problem if you really want to use them interchangeably. Bearing steel and gear steel are often the same base material, and manufacturers can just take them back and perform different post-processing. ? Its just that aircraft engine bearings are not used in large quantities, and they are still in trial production, so you must choose the most suitable one. Even though Northeast Special Steel is an enterprise in Chang Haonans hometown of Liao Province, it is not easy to harm the public and private interests at this time. ?So, he picked up the receiver of the red landline on the table and made a call to Liming Engine Company in Shengjing. Hello, Im Chang Haonan, please transfer me to Mr. Zhong. ?Chang Haonan and Zhong Shihong are old acquaintances, but they must be addressed more formally in front of each other''s subordinates. Job title in the workplace.jpg "Please wait." Soon, after a dial tone that lasted for perhaps a few seconds, the call was reconnected. Mr. Chang, please look for me. "Gong Zhong, Xingcheng Special Steel Company in Jiangsu Province has developed a new type of bearing steel with better performance than M50NiL. In terms of material properties, it can be used in third-generation turbofan engines. Please follow us as soon as possible. Axis, Luozhou and Bingxuan will contact each other and ask them to provide some samples for basic performance testing. " Wait...better than M50NiL? ??Zhong Shihong, as an old technician at Liming Factory, although he is not a metallurgical major, he naturally knows a lot about things like aircraft bearing steel. The bearing steel used by Huaxia before the 1990s was mainly the first generation ZCCr15, a typical high-carbon chromium steel that came out in 1901. ?Of course, being old does not mean being backward. This kind of steel is still widely used in high-speed railways and precision machine tools, but it is not suitable for the harsh working environment of aerospace engines. Until the mid-1990s, on turbojet 14 and turboshaft 8, the domestic application of the second-generation bearing steel M50 was finally realized, but the research on this material was still far less in-depth than that in developed countries. As for M50NiL, he had never thought of using it in the Turbofan 10 project. This is also a worry for Zhong Shihong. After all, the working environment of third-generation engine bearings is harsher than that of second-generation engines. If the bearings of turbojet 14 are moved to turbofan 10, the first turning cycle may be lower than 150 hours. ?That is almost unacceptable. As a result, even the overall design of the turbofan 10 has not yet been released. Mr. Chang called and told him that this problem has been solved? "Yes, you can contact the bearing supplier for this. Just some time ago, I also designed a series of brand-new ball bearings and roller bearings with several experts in the field of mechanical design. Combined with the new bearing steel, it can be used in the third The bearings on the modern engine have the same lifespan as the entire engine! ThisIgod Zhong Shihong on the other end of the phone was already a little dazed by the huge surprise. He sat at his desk and calmed down for a while before finally calming down: "Mr. Chang, if this bearing passes the basic performance test, should it be installed on the Turbofan 9 first for installation testing?" ?????Although Chang Haonan is only nominally the chief designer of the Taihang engine, the Turbofan 9 project is still entirely led by Factory 430 is in charge, but now almost half of Factory 430s R&D and production teams are here in Shengjing, so he can actually direct two projects at the same time. So he immediately gave an affirmative answer: "Yes, before the detailed design plan of the turbofan 10 is released, our Liming Factory will connect all the technologies related to the production process with the 430 factory and conduct tests on the turbofan 9, so that the design work and the production work will not be delayed. It can also solve the problem of localization of turbofan mid-range thrusters. Strictly speaking, this kind of operation is of course a bit unsophisticated, but China''s foundation in aviation power is really poor. Not only is the capital investment limited, but even the scale of R&D and production personnel is too limited to complete two large projects at the same time. . It happens that these two types of turbofan engines are key subsystems of key models, so Chang Haonan can only use this method to maximize resource utilization. ?This is why, in his proposal in the morning, he strongly opposed splitting the Aviation Industry Corporation into two groups with the same business to engage in so-called "competition in the same field." How many dishes and drinks are needed to make you drink like this? On the other side of the phone, after hesitating for a moment, Zhong Shihong decided to put aside the past grudges between the two factories: Okay, it just so happens that Zhang Zhenhua is also in our factory now, so it is more convenient for me to work through him. The world is huge, and the project at hand is the biggest. Once this is done, even if the 430 factory can get a mature turbofan engine model for almost nothing, if you really want to calculate it, it is he and Liming Factory who will gain the most. The identity of the big brother of aviation power is absolutely unshakable. After settling the most important matter at hand, Chang Haonan then responded to several faxes, confirming that Xingcheng Special Steel was the point A supplier of aviation engine bearing steel, while Northeast Special Steel was the point B supplier - in this era Email is not yet a formal means of communication in China, so formal documents still have to be delivered by letter, telegram or fax. As for the so-called AB point suppliers, they refer to the configuration of the AB corner of the drama to avoid accidental uncontrollable factors from having a huge impact on the project progress, which is part of risk management and control. ? It was not yet popular in the 1990s, but in the future everyone will gradually build up this awareness through **** lessons. ?Of course, this does not mean that Northeast Special Steel has lost its opportunity. Public or private, Chang Haonan could not let their efforts go to waste. As the basis of all manufacturing industries, huge breakthroughs in the field of materials are not just beneficial to one project. Especially gear bearings, which have always been a shortcoming of China''s manufacturing industry. Of course, Chang Haonan believes that both Xingcheng Special Steel and Northeast Special Steel are already considering bringing this new material to the market. But it still takes time to gain market recognition. ?After thinking for a long time, Chang Haonan picked up the phone again and dialed a number from the Science and Technology Commission. ??Its just that this time the call was not made directly to Ding Gaoheng. ?The other party is, after all, the director of the Science and Technology Commission, so it is impossible for him to directly trouble him with every little thing. Hello, Secretary Lan, Im Chang Haonan. Comrade Haonan, I have something to give you. Although Chang Haonan currently does not have any formal position in the Science and Technology Commission, almost everyone knows that, except for Ding Gaoheng himself, his voice in the Science and Industry Commission is almost equal to that of several deputy directors. ???Let alone someone like Secretary Lan who can follow the big leader. As long as it does not violate principles, Chang Haonan is his second leader. Please make a list of the projects that are currently applying for the Seiko Plan and send it to me. Chang Haonan is naturally planning to find a few suitable ones to distribute to Northeast Special Steel. He needs a bowl of water to keep it level. Okay, Ill do it right away! (End of this chapter) Chapter 450 The French design is unreasonable! Chapter 450 The French design is unreasonable! Bingcheng, 602 Research Institute. ?Wang Zhilin, an engineer who had just graduated from Bingcheng University of Technology, was immersed in a computer, staring anxiously at the calculation data that unhurriedly popped up one by one on the screen. The 602 Institute is called the "Cradle of China''s Helicopter Industry", which sounds nice to say, but because in the past few decades, China has not seriously equipped many decent helicopters, and most of them are imported models, so this cradle At least so far, no reason has been figured out. ?Zhi-5 is just an early piston helicopter with the technical level in the early 1950s. Z-6 and Z-7 collapsed in the middle, Z-8 belongs to Changhe, and Z-9... Zhi 9 is on the computer screen in front of Wang Zhilin. ??The vast majority of the "Dolphin" family currently serving in the Chinese army are SA365N1 imported or assembled with imported materials, which is the French prototype of the Z-9. ? ?The real Z-9 has just been delivered to the troops stationed in Hong Kong, with 6 aircraft not long ago, and the civilian model has only found two intended users... In fact, even the main rotors, tail rotors and transmission systems of this batch of aircraft use a large number of serially assembled parts, that is, original SA365N1 parts purchased directly from the French Aerospace Company and installed on the aircraft. The engine is directly imported from the Ahaye 1C. It is somewhat similar to the current state of the J-11. In this case, 602 Institute naturally does not have enough funds to purchase advanced supercomputer like 601 Institute or 611 Institute. But the advent of a new era, especially the sudden rise of a young man named Chang last year, has made everyone aware of the value of digital design. So in the end, 602 Institute still squeezed out some of its scientific research funds and purchased a cost-effective server from Sugon Company. The price is just poor performance. ?Wang Zhilin is currently calculating the strength margin of the main reducer tail output transmission bevel gear pair. It is not particularly complicated in theory, but just outputting the data has already taken half a morning. ?This is because the new TORC Multiphysics software has greatly improved the calculation efficiency. Otherwise, if you use the old structural mechanics calculation software, 80% of the calculations will get stuck in the middle. Sigh... This is good, the pace is slower, suitable for a slow person like me..." Wang Zhilin comforted himself while writing the last number on the screen on the whole machine transmission system design diagram spread on the table in front of him, and then stretched: Its been half a month, and Ive finally finished all these things... It must be admitted that the French Aerospace Corporation did not hide any secrets when transferring the technical data of SN365N1. The entire introduction process of Z9 went smoothly, as if the French had been caught by China. Not only does it include a full set of technical information, but it also includes independent export rights in the contract for the first time. This is an extremely rare situation. Even for the J-11 in the current timeline, Sukhoi has even given the authority to jointly modify it to the 601 Institute and the 112 Factory, but it has also insisted that China cannot export the Flanker series of fighter jets and their equipment to any third party. Any improvements based on the model. So logically speaking, the research and development of the Zhi9 project should be very simple. However, the transmission system produced by the Bingcheng 122 Factory in China has always failed to meet the performance requirements. As a result, the subsequent naval-type Z-9C was obviously replaced with a turboshaft 8F engine with better performance, but the actual available output power did not increase. Fall instead. ??The final result is that an aircraft can only carry one of submarine search sonar and anti-submarine torpedoes. At least two Z-9Cs are needed to complete the submarine search-submarine attack task process... Very outrageous. Wang Zhilin is trying to solve this problem at this time. "The maximum allowable output power of the main rotor is 800kW, the maximum allowable input power of both sides is 900kW, the upper limit of the single-stage oil pump speed is 3800, and the oil pressure under working conditions is 0.17-0.26Mpa..." He picked up the red and blue pencils at hand and wrote about the past few days. Each number recorded on the design drawing is circled with a red or blue pen. There is no problem...how can the available power be reduced..." The maximum continuous output power of the turboshaft 8F engine equipped on the Zhi-9C has been increased from the original 437kW to 496kW, but no matter how you calculate it, it is still within the allowable limits of the entire transmission system and has sufficient margin, even if the processing accuracy on China''s side cannot reach it. The original D-class of French Aerospace should not have the situation where the input power increases and the output power decreases instead. Wang Zhilin, who felt his brain was a little bloated, simply threw the pencil aside and opened the tutorial that came with the TORC Multiphysics software on his computer. This is his favorite leisure activity in recent days, bar none. Generally speaking, no one will look at the "Help" interface of the software. However, it is said that this tutorial was completed by Chang Haonan, a legendary figure in the industry who has been named a demigod and the developer of the software. ?Wang Zhilin didnt take it seriously at first, but he just opened it one time to pass the time. Unexpectedly, I became addicted to it after seeing it. ?Even if the content writer is not Chang Haonan himself, he is definitely a person with profound attainments in the field of numerical computing. From then on, he began to read this part whenever he had time. "etc" Soon, Wang Zhilin happened to see what he was interested in: Tail output bevel gear pair He was suddenly inspired by the contents of one of the calculation examples. Yes, it is not only the main rotor that affects the power output of the helicopter, but also the tail He quickly reopened the project file for the transmission system modeling and imported it into TORCMultiphysics. ??However, this time the focus of his research became the rear part of the helicopter. Its so slow ?For the first time, Wang Zhilin felt that the server purchased from the institute was such a waste of time. ?But no matter what, the problem at hand had to be solved with reference to it, so Wang Zhilin had no choice but to bang the table in frustration. It was another long wait, and it was not until the sun set that the second round of calculations was completed again. Following that, he stood up and took from the side a copy of the new standard GJB/Z89 issued not long ago by the Commission of Science, Technology and Industry for National Defense, and began to perform strength verification calculations. This time, when the verification results came out, Wang Zhilin saw the problem almost at a glance. The original design working load of the main reducer tail output bevel gear pair is 220kW, and the maximum power of the tail output is 285kW? ?This exaggerated number made him first think that he had just calculated it wrong. ?Its okay to leave no margin, but its still nearly one-third over the limit? This is the original structural design provided by the French! No way? ?Its not that outrageous, right? ??However, after checking the structural mechanics simulation results and strength verification results again, Wang Zhilin was very sure that there was no problem with his calculations. In other words, there is something really wrong with the French design! (End of this chapter) Chapter 451 Helicopter main reducer Chapter 451 Helicopter Main Reducer Wang Zhilin, who finally discovered the problem, murmured his gratitude to the tutorial author, quickly picked up a stack of calculation drawings spread out on the table, and jogged upstairs to Guo Jingshan, chief engineer of the 602 Institute. He is also the general person in charge of the import and imitation work of Zhi9. You must know that this project was first started by the 602nd Institute and the 122nd Factory by themselves, like the J-7F, with a huge sum of 320 million yuan (currency value in the 1980s). Several units participating in the project were all heavily in debt for this, which is enough to show that His courage and courage. However, to engage in research and development in the aviation industry, courage and courage alone are not enough. Today''s Bingcheng Aircraft Industry Group is troubled by the localization rate and reliability issues of the naval and army armed types. Mr. Guo, Mr. Guo, I found a problem! Wang Zhilin had both hands occupied and it was not convenient to knock on the door, so he had to stand at the door and call softly into Guo Jingshan''s office. The latter, who was immersed in the table, raised his head and saw only a figure standing at the door. However, because the upper body was almost completely spread out and covered by the half-rolled drawings, it was difficult to see who it was. ?But those who come here with this appearance must be the technical staff of the institute. You go ahead and put your things down. ?? Guo Jingshan straightened his hair, which was only on the sides of his ears, and motioned for the visitor to put things on his desk. Then he saw the identity of the other party: "You are...the new little king who graduated last year, Wang Zhilin?" Logically speaking, as the chief engineer of the institute, it is impossible for him to remember every newcomer in the institute. However, Wang Zhilin is very outstanding among his group of newcomers, especially in the field of numerical calculation, which has been very popular recently, so it is inevitable to retain some impression. Yes, Mr. Guo, I am Wang Zhilin. ?Wang Zhilin nodded while sorting out the messy drawings. What problem did you just say you found? Guo Jingshan, who put on his glasses again, recognized at a glance that the transmission system on the drawing was that of the Z-9. Of course, this was actually not difficult. After all, the only helicopter models that had actually landed in the entire 602 were the Z-5 and the Z-9. , and even a novice who has never studied aviation can see the difference between the two. I found something wrong with the original design of the French. There were big problems. "oh?" ??Guo Jingshan, who was smiling just now, his eyes suddenly became sharp: Where exactly? The tail output bevel gear pair of the main reducer has insufficient strength margin. ?Wang Zhilin pulled out a drawing from below and pointed to several locations circled in red pencil: "I checked the original design materials provided by the French side. Because the Dolphin was actually developed from the Skylark helicopter, I borrowed a lot from the original design and designed the current main reducer on the first model SN365. , I calculated that the maximum transmission power of the tail output bevel gear is 220kW. In the subsequent models, as the engine power continued to increase, the maximum load endured during flight also increased, and the French Aerospace Company only added the vibration polishing process of the tail output bevel gear to improve its surface contact strength, but The structure itself has not been modified, so..." So the model we copied actually has the tail rotor transmission mechanism operating under high load all the time? Hearing this, Guo Jingshan was also a little confused. Very outrageous cause of failure, but if it were a French person... It seems to be less outrageous. Thats right, and thats the original French design. ?Wang Zhilin nodded and continued to explain: "Our original standard for helicopters was copied from the French military standard. Even the French couldn''t detect it. We will definitely not be able to detect it if we copy it. Today I had a sudden idea to use the new national military standard that was just issued. After a while, I immediately realized something was wrong..." Industrial standards are the same as laws. They must not be retroactive, otherwise there will be chaos. So in principle, projects that have been completed before the new national military standards come into effect should continue to use the old standards to ensure the continuity of use and maintenance. However, due to China''s special circumstances, there are still a large number of projects that have been nominally completed, but in fact only part of them have been completed. Zhi9 is one of them. Even Chang Haonan cannot give a one-size-fits-all approach to decide whether these equipment should continue to use the old standards or switch to new standards. It can only be decided by the respective project teams. Fortunately, the standards specific to helicopters mostly include additions and few changes, so there is no risk of overturning the entire model and starting over. After a short pause, Wang Zhilin continued to add: "But I already have a preliminary idea for improvement. I can increase the module of the bevel gear pair and increase the tooth width appropriately. In this way, the installation position of the large bevel gear remains unchanged and the small bevel gear moves backward, so that the shaft intersection angle, The only cost of increasing the strength margin without changing the transmission ratio and steering is that the engine fairing volume must become larger, but for helicopters, there are not many parts that need to be considered for the aerodynamic shape..." In addition, since we have decided to modify the main reducer, we might as well do it without stopping. The problems of planetary gear bearing life and lack of emergency lubrication system can also be solved during this shipboard modification process..." "Although I haven''t made detailed calculations, it is preliminary estimated that if these measures are implemented, they can at least increase the maximum takeoff weight of the aircraft from 4 tons to 4.5 tons, and the external load will also increase accordingly. At least it can ensure that it can carry submarine search weapons at the same time. equipment and two anti-submarine torpedoes. In addition, the range is increased, and even under large load conditions, it can meet the requirements of the Army Aviation Force across the target strait and the mid-to-long-distance anti-submarine flight requirements of ship-based helicopters..." ??Yang Yangsao, Wang Zhilin put forward many suggestions for improvement. ?The slow calculation speed of the computer is not all bad, at least it gives him enough time to think. A lot of the content here was what he thought of while waiting for the results. Xiao Wang, what you are talking about is actually our groups next key research area, the localization and improvement of rotors, tail rotors, and main reducers. We also applied for a project under the Seiko Plan in the middle of the year. ?Guo Jingshan looked pleased at first, but then he looked embarrassed: But Zhi-9 is still in the state of serial assembly delivery, and there are really no conditions at the moment..." Can you consider asking the French aerospace company to improve the parts delivered? After all, their own models also have the same problem... Its difficult. ?Wang Zhilin was interrupted by Guo Jingshan raising his hand when he was halfway through his thoughts: 90 years later, although the French manufacturing plants were still delivering ordered engine parts to us, their design units technical team had all withdrawn and stated that they would not respond to any of our technical requests. Later we tried I contacted them several times but got no response. Otherwise, with a complete set of technical information, the delivery of the 9A would not have been delayed until this year. " In this case, is it possible to put a hot face on someones cold buttocks? "this" Obviously, the latter is right. But Wang Zhilin is still a little unwilling: Then lets improve the straight 9... Lets take it step by step. Now at least we have a clear direction to solve the problem. All thats left is to chew hard bones one by one ?Guo Jingshan sighed softly. ?Everyone wants to solve the problem in one step, but for China Aviation Industry, there are indeed few such opportunities. ? He ??has been in the industry for more than 30 years, and he only heard that he met such a **** when the 606 Institute was engaged in turbojet 14 last year. ?Its a pity that they are not in the helicopter business. Although both fixed-wing aircraft and helicopters can fly, the basic principles are very different. Under normal circumstances, few people cross the border like this. Okay, then I Just as Wang Zhilin was about to pack his things and return to the office, a rapid knock on the door came from behind him. Mr. Guo, there is a call from Factory 122 to tell you that our main reducer is available! ??The two people who were immersed in the drawings looked up at the door almost at the same time: "ah?" "real?" (End of this chapter) Chapter 452 import substitution Chapter 452 Import Substitution The family knows their own business. As part of the Bingcheng Aircraft Industry Group, Factory 122 knows how much vinegar there is in the bottle. Guo Jingshan and Wang Zhilin still know clearly. ? ? A simple thing like the production point transport 12 is okay, but when it comes to manufacturing standards that are in line with international standards, there are many places where it falls short. Not to mention the transmission, which is the most important core component of the helicopter, even the main rotor and tail rotor can only be imported from France. Now they suddenly say that they have solved the problem of the main reducer. It sounds true. Not quite in line with the fundamentals of manufacturing. ? ? It''s like a child who has always been at the bottom of every exam suddenly takes the first place in the school. The parent''s first thought is definitely that there is something fishy in it, and he is afraid that he is cheating. Similarly, the first reaction of the two people in the office when they heard the news was not surprise, but to further ask the person what was going on. After all, Wang Zhilin is just a rising young engineer. It is difficult to speak directly in this situation, but Guo Jingshan does not need to care about that and asked directly: Tell me, whats going on? I still dont know whats going on at Factory 122? How come the main reducer problem was suddenly solved? ??The person who just knocked on the door just took a breath and seemed to have rushed upstairs: Its not something Factory 122 can solve on its own. They said there are suppliers who can provide new raw materials and parts. They said they couldnt explain the details on the phone. Please go to the factory and have a look. He is just a secretary who is purely engaged in administration and is not responsible for any technical work. Ask me to go ?? Guo Jingshan lowered his head subconsciously, and then realized that the phone receiver on his desk had been pushed aside by the pile of drawings that had just been laid out. No wonder he needed to call himself through someone else. Wang Zhilin scratched his head in embarrassment when he realized that he was the one causing the trouble. However, seeing that he had just solved a big problem, Guo Jingshan didn''t say much. He just put the receiver back in place, then stood up and picked up two pieces of work clothes from the hanger next to him, put one on himself, and then put the The other one was thrown to Wang Zhilin. Come on, come with me to take a look, and report what you find to the factory. Hey, okay! As the engineer responsible for the research and development of the straight-9 transmission system, Wang Zhilin naturally went to Factory 122 on weekdays. However, the significance of the fact that he was personally called and taken there by the chief engineer in the past and today is naturally very different. ??When the two people took the commuter bus in the factory area to the workshop, a middle-aged man wearing a safety helmet ran up to Guo Jingshan in small steps, and murmured as he walked: Lao Guo, Ive been waiting for you. The line I called you just now has been busy all the time. Im so anxious. Come on, come on. Today After speaking, he took one of the latter''s hands and prepared to walk inside. It wasn''t until he turned around that he realized that there was another person following Guo Jingshan. He immediately stopped moving and his expression became a little stiff: This little comrade is... ??As the general manager of Bingcheng Aircraft Industry Group, he still has to maintain a good image in front of outsiders. ??If the scene just now spreads out, I''m afraid it will have a bad impact. Oh, a young comrade from the research institute, when the secretary came to see me, he happened to tell me that he had found the key problem of the weak power input of our naval helicopter, so he brought him with him. ?Wang Zhilin, who was standing slightly behind, was in a daze from the moment he entered. ? General Manager Cui Wenxue, he had only met him twice before when he was first hired for training and at the group meeting at the end of last year. He seemed to be a very old-fashioned little old man. Thats the result? Wang Zhilin didn''t react until Guo Jingshan introduced himself. This opportunity to show his face in front of the leader has almost been fed to Mr. Guo. If he can''t take it anymore, he can''t blame others. Hello Mr. Cui, I am Wang Zhilin from the structural design office. Wang Zhilins self-positioning is very accurate. Compliments must be of similar status to be valuable. As a little fish like me who has just joined the company in the second year, talking too much will only annoy the general manager. It is enough to just introduce my position and name. ??Anyway, judging from today''s plot, there will definitely be no shortage of opportunities for him to show up in the future. Hello, little comrade, come here too. As expected, Cui Wenxue didn''t pay much attention. He just said something casually, then turned around and led the two of them towards the workshop. ?Of course, the hand that just grabbed Guo Jingshan must have been loosened. "Two days ago, I received a fax from Qi City, saying that they can supply us with a new grade of bearing gear steel. I didn''t pay much attention to it at first. After all, I often received this kind of news in the past. In the end, most of them just let it go. As a result, someone directly sent me an encrypted email today, which contained several steel samples and a performance test report. " ? Cui Wenxue, who was talking before, paused here, seeming to calm down, and then continued: "I didn''t understand it at first. I thought they were car bearings and gearbox gears. I was also wondering why the quoted price was so much more expensive than the parts imported from Japan. After checking the data for a long time, I realized that they meant they were for helicopters. Then I quickly brought my things and came to find the engineer in the factory..." Qi Shi, the abbreviation of Qiqihar in its surrounding areas. ?Although Beiman Special Steel has been merged into part of Northeast Special Steel, after all, it has only been a year, and most people are still accustomed to treating it as a separate factory. As for the most famous product of Bingcheng Aircraft Industry Group in the 1990s, it was definitely not its "main" products such as helicopters and transport aircraft, but cars. Songhuajiang brand mini-van. From the late 1980s to the early 21st century, it was the most mainstream car model on Northeast Street. He is also the main contributor who helped the entire group survive this cold winter. Especially the Dongan Engine Company below. If it had not introduced and absorbed the gasoline four-cylinder engines for mini-vehicles and installed them in large quantities, it would have been in ruins long ago if it only produced turboprop 5s that more than half of the people in the aviation industry had never heard of. . In fact, the reason why Cui Wenxue became the general manager of the group at such a relatively young age was because he started out as the supervisor of Songhuajiang Automobile. So its no wonder that he was always thinking about car parts at first. As they spoke, the three of them had reached the depths of the factory, where a group of people wearing blue or gray work clothes were surrounding them. I dont know much about airplanes. Let the responsible comrade in the workshop introduce the specific situation. Cui Wenxue has been here for a while, but Guo Jingshan has just arrived, and the chief engineer of the group does not see him every day. A group of people hurriedly said hello: Mr. Guo, you are here. In the minds of those responsible for building aircraft in Factory 122, Guo Jingshans status is probably slightly higher than Cui Wenxues. ?Although you can make a lot of money by building cars these days, who can still dream about aviation? In the past few years, it was Guo Jingshan who was running around under pressure and even went to the Navy Commander Liu to issue a military order before signing an order for the troops stationed in Hong Kong Island to build Zhi 9 with their own funds. The big job was changed. In fact, even Cui Wenwen built cars in order to provide sufficient funds for the aircraft project. "Mr. Guo, I took a look at the test data of this sample. The surface hardness is really good. The accuracy of the gear bearing components we produced before can only reach E-level. The original ones from France are D-level, so if the lifespan cannot be improved, they can only be imported. , if new materials are used, even if the previous processing accuracy is maintained, the overall service life can be increased to 4-5 times the original, which is more durable than imported parts..." There are also transmission bevel gears. This steel not only has high surface hardness, but also has good core toughness..." The several workshop engineers led by each other talked to each other and introduced the general situation of this material to Guo Jingshan. To sum up, it is very strong. ?As long as the supporting technology can keep up, the entire transmission system that has troubled our helicopters for more than ten years will not be a big problem. ??If the processing accuracy can be improved by the way, then lifting the original goods will not be a problem at all. (End of this chapter) Chapter 453 Non-staff deputy director of the Science and Technology Commission Chapter 453 Non-Staff Deputy Director of the Science and Technology Commission After talking about the new steel, Wang Zhilin, who was brought over by Guo Jingshan, pressed several transmission system design drawings on the blackboard with magnets and began to introduce his previous findings: To put it simply, the tail output bevel gear of the main reducer does not meet the requirements and needs to be modified. However, I just heard from Mr. He that the core toughness of the new material is higher, which can save a lot of effort..." The production and manufacturing of complex equipment is like this. One move affects the whole body. If the material itself is not good, it can only be compensated through more extreme structural design. ?But on the other hand, if you can come up with materials and processes with incredible performance, then there will be more room for compromise in the design. After listening to Wang Zhilins briefing, the first reaction of several other engineers was to be filled with indignation: Fuck, are the French hiding this from us? I thought French engineers were quite honest before, but I didnt expect that After all, foreigners know people well but dont know their hearts Upon seeing this, Wang Zhilin quickly put down the mineral water bottle he had just picked up: Everyone, to be fair, the French have not changed the design of the main reducer in their latest SN365N2, so I guess they themselves may not know what the problem is "this" Cui Wenxue, who was next to him, did not join the discussion, but just kept listening. ?Although he doesnt understand airplanes, he understands mechanics. As for mechanical processing, one knows everything. There is a huge difference between designing an airplane and designing a car, but there is not that big a difference between building an airplane and building a car. If we look at some specific parts, the difference may be even smaller. So companies that build aircraft often cross borders to build cars. This is not only true in China, but also abroad. ?For example, Saab Automobile was formed by the merger of Swedish Aircraft Co., Ltd. and Scania Automotive. ?Subarus predecessor was simply Nakajima Aircraft Company. Therefore, from the very beginning when he planned to build a car, Cui Wenxue did not oppose the two businesses. Instead, he established the principle of mutual help and mutual promotion. ??He has a dream that he has never mentioned to anyone before, which is to make Bingfei Automobile the top car company in the country, or at least in the Northeast region. Now this dream has been partially realized. In the field of mini cars, Songhuajiang has indeed occupied more than half of the northern market. But if you want to go up, it may not be easy. Therefore, when several people next to him were discussing the design of the helicopter''s main reducer and how to make local improvements, Cui Wenxu''s mind was not idle for a moment. He had just heard from the engineer in charge of quotation that the sample sent with the letter was about half cheaper than the French parts, and compared with the old domestic parts, it was only about a quarter more expensive. It''s about a level, but the performance is better than the original product, and the price/performance ratio is very high. In other words, my first reaction was that the quotation was expensive. This was just because of the industry differences caused by the differences in design, manufacturing requirements and chemical treatment between automotive parts and aircraft parts. It was not about how expensive the steel itself was. ?Then if we can cooperate with Beiman Special Steel to replace some of the imported parts in Songhuajiang cars... ?Cui Wenxue''s thoughts couldn''t help but come alive. Songhuajiang''s current main sales force is the second-generation HFJ6350 based on the eighth-generation Suzuki carry ST90V. These days in the north, especially in most cities outside Shanhaiguan, you can see it almost everywhere on the streets, from taxis to police cars. The figure of this gadget. ??Although it was not imported from Suzuki but through the second-tier dealer Daewoo of South Korea, it still uses a large number of Japanese-origin parts. Although the 0.8L small-displacement engine and 4-speed manual gearbox have been introduced and produced by Dongan Engine Factory, many key components are still not domestically produced. Even the hub bearings for the four wheels need to be purchased from Japan''s NSK Company. They have also tried using domestic models such as Wanxiang on a batch of vehicles before, but the user feedback was very poor. Even though NSK''s products are much cheaper than the SKF used in European cars such as Volkswagen, they still have to use imported parts in foreign exchange, and the price is equivalent to RMB 100 per piece. Cui Wexue also inquired about the profit here, which is about 70%. In other words, including shipping and channel fees, the cost of this thing is no more than 30 yuan. If it can be produced domestically, the cost will be reduced by at least half. Songhuajiang sells 50,000 cars a year and can save 10 million in costs. ?This does not include the gearbox and engine... You should know that Dongans 0.8L engine is not only used in Songhuajiangs own cars, but also in many mini cars and even sedans. ?Most users of Songhuajiang are engaged in operations or official procurement, and do not care too much about the suppliers of various parts of the car. As long as they can be used, they will not lose any reputation if they switch from imported to domestic... ?After calculating the approximate benefits and losses, Cui Wenxu felt that he had to do something. Its not just for the development of the automobile industry. More importantly, with the rapid development of China Aviation Industry in the past two years, the group''s aviation business will definitely gradually increase, and if he, a general manager with a background in car manufacturing, still wants to secure his position or even go further, he must get Just come up with some hard results worth bragging about. ?? Bingcheng Aircraft Group was able to receive faxes and letters sent from Northeast Special Steel, and naturally Chang Haonan was behind it. At this time, others were in a conference room of the Commission of Science, Technology and Industry for National Defense. ?A few days ago, after he made the phone call to the Science and Technology Commission, he received the Seiko Project file compiled by Secretary Lan Xinzhi of the Science and Industry Commission that afternoon. The domestic substitution of key helicopter parts submitted by Bingcheng was the first project Chang Haonan saw after opening it. In the list of key parts listed, 80% are gears or bearings, which are simply tailor-made for the matter at hand. ??If it weren''t for the fact that the call was completely impromptu, he would even wonder if someone was receiving benefits and deliberately put this thing in the first place. Today he originally planned to return the files, but as soon as he entered the Science and Technology Working Committee, he was detained by Ding Gaoheng himself before he could find Secretary Lan. Said there was a meeting. Meetings are small. To sum up, they are the heads of the Science and Technology Commission, plus Chang Haonan. The person in charge of the minutes of the meeting was Secretary Lan. ?Seeing Chang Haonan being brought in by Ding Gaoheng, he was almost shocked and threw away the pen in his hand Previously, these high-level secretaries called Chang Haonan as Deputy Director Chang in private, but in the end it was just a joke. At most, they added some envy that this young man who was much younger than them could hang around Ding Gaoheng on a daily basis. ??As a result, good guy, take him directly to hold an internal meeting at the ministry level today? Are you no longer pretending? Is he really just a non-staff deputy director? Fortunately, Lan Xinzhi had been working as a secretary for many years. Although he was deeply shocked, his face remained calm and he just made a gesture to Chang Haonan who was sitting next to him. Comrades, I have called you here for this meeting today, mainly because I want to hear what you think about the adjustment of our departments organizational structure. Ding Gaohengs opening remarks made Chang Haonan a little nervous. ?This is too much to consider oneself an outsider... (End of this chapter) Chapter 454 Establish the Equipment Industry Department! Chapter 454 The Equipment Industry Department is established! Next year, that is, in 1998, there will definitely be a large-scale organizational adjustment. ?Those who can sit in this small room are all their own people, so Ding Gaoheng also got straight to the point without any nonsense: "Although the specific reform methods of various military industrial groups have not yet been determined, the administrative functions of state-owned enterprises must be taken back. Therefore, what is certain at present is that our Science and Technology Commission will be reorganized. Currently, the National Defense Department of the State Planning Commission and the departments of various military industrial units Administrative functions, as well as the management of some military-to-civilian enterprises, will be placed under the reorganized new Science and Technology Commission. When the news came out, the originally tense atmosphere in the entire conference room naturally relaxed. ?Although the units at the ministries and commissions level have the same level on paper, in fact they are divided into three, six or nine levels. Even people who are truly out of vulgar taste always need a platform to realize their ideals. Whats more, most people are not that otherworldly. So, everyone hopes to have more authority in their hands. Of course, Chinese people are very restrained, so it is not easy to celebrate this kind of thing publicly. Even in a small gathering like this, everyone just applauded with joy on their faces. ?However, someone soon discovered that something was not quite right. Director, in the past, the management of military-to-civilian enterprises was nominally the responsibility of each unit, but in fact, we were centralized and coordinated with the Ministry of Machinery Industry. There shouldnt be much change, right? The person who spoke was the chief of staff. ?Of course, not all department-level leaders can participate in todays meeting. They are mainly the chief economist of the Science and Technology Commission and members of the leadership team. He is mainly responsible for the matter of converting the army into civilians, so I ask this question. Thats the second thing I want to say. Ding Gaoheng lightly knocked on the table, and the room suddenly became quiet: "Based on the current wind blowing from above, further opening up of the market is inevitable, and superiors are also very confident in joining the World Trade Organization. Against this background, many people have suggested abolishing the current Ministry of Machinery Industry. and the Ministry of Metallurgical Industry. Cancel Compared with the first news, the second news is obviously not as happy as everyone. Because the defense industry cannot exist independently from the country''s overall industry. These two units are almost the same-level departments with the most connections after the National Science and Technology Commission and the Surgery Working Committee. Now that they are suddenly said to be gone, it still makes people feel a bit complicated. On the other hand, an attempt was made to abolish the Ministry of Machinery Industry in 1987. As a result, many industrial fields that had been struggling to keep up lost investment and protection and were completely destroyed. The impact was very bad. So it was added back in 1993. Isnt it that the current Ministry of Machinery Industry... personally decided to rebuild it? Why is it canceled again? ?Most people are still confused about this. "There is no way. These institutions are related to the degree of market openness. Some people are using the WTO negotiations to put pressure on us...including the Planning Commission, which also needs to be renamed the Development Planning Commission. To be honest, it is quite difficult to keep our Science and Technology Commission. Already Ding Gaoheng shook his head slightly and explained everyones doubts: "The problem now is that the superiors also know that industrial development cannot be without a coordinating unit, so..." ?His eyes swept across the people sitting in front of him: The State Economic and Trade Commission established a Metallurgical Industry Bureau to assume some of the functions of the current Ministry of Metallurgical Industry. As soon as he finished speaking, everyones eyes almost immediately focused on Chang Haonan. The latter also immediately understood why he was being dragged into such an internal-looking meeting. After all, he had mentioned inadvertently before that he hoped to establish a department specifically in charge of equipment manufacturing under the Committee of Science and Industry, specifically responsible for key projects such as heavy-duty die forging presses that require concentrated national efforts to promote. At least Ding Gaoheng and several deputy directors should have heard of it. ?Even if everyone didnt pay much attention to it at the time, by now, they should have remembered it. I remember, Xiao Chang seemed to have said before that our Science and Technology Committee could... Zhang Dongxu, another deputy director sitting opposite Huai Guomo, spoke first. Halfway through, he looked at Ding Gaoheng, who was sitting in the first place. After the latter nodded, he briefly described Chang Haonan''s thoughts at that time, and then confirmed with Chang Haonan. road: Is that so, Comrade Haonan? Lan Xinzhi, who was taking notes just now, has also closed the meeting minutes with great insight. ?In this kind of meeting, of course all the content must be written down, but what needs to be recorded as is and what needs to be handled flexibly is the time to test the secretary''s skills. Obviously, he has always been good at this. Chang Haonan nodded: "Actually, I didn''t think about it in the long term at that time. It was just because when I discussed heavy-duty die forging presses with Comrade Yan Yongnian, oh, he was an old professor at Qinghua University and a student of Academician Shen Hongshen, I felt that A unit in this area would be more convenient. Its not that hes being modest here, its just that its not convenient for him to show too much foresight at this time It is unreasonable to think that you knew something that Ding Gaoheng didn''t even know months in advance. Even if he said this, it was shocking enough. I feel a little ashamed... The third deputy minister, Shen Junrong, put down the teacup in his hand: When I first heard this idea, my first thought was that young comrades would integrate quickly, so they would help our Science and Technology Commission fight for power... Now it seems that it is still narrow-minded..." Seeing that the situation was developing rapidly in a direction beyond his control, Chang Haonan quickly added: "Thank you for the praise from all the seniors and leaders, but if you continue to praise me, I''m afraid I will float..." The conference room was suddenly filled with cheerful air. "Hahaha, if you can say this, it means you can''t float." ?Although Zhang Dongxu said this, he still did not continue. After a brief moment of relaxation, the discussion quickly got to the point. No matter how we viewed Comrade Xiao Changs suggestion before, we must think about it seriously now. Ding Gaoheng signaled to Lan Xinzhi that he could start recording again, and then continued: "The functions of the former Ministry of Machinery Industry are very complicated. Americans and those who advocate its abolition are not fools. We can''t completely cover it up with a department-level unit. Therefore, How to build this new department, what to manage, and what to abandon are the key points. The Ministry of Machinery Industry is the largest ministry in Chinese history. Even after reorganization, it is still a behemoth, larger than the entire Commission of Science, Technology and Industry for National Defense. Xiao Chang, tell me what you think? Everyones eyes turned to Chang Haonan again. ?The idea was originally his, so you should listen to his own opinion no matter what. ? Lan Xinzhis hands were shaking when he was writing the names of the speakers. ?In this record book, except for the recorder, that is, himself, no names below the department or bureau level have ever appeared before. Chang Haonan had been drafting for a long time before this, and he answered almost immediately: "Dear heads, I think it must be to grasp the big and let go of the small. The former Ministry of Machinery Industry used the method of overall planning for every detail. We cannot have so many people, and it may not meet the requirements of the new era. Therefore, as long as we focus on those who can It is enough to manage the key equipment and fields that affect the development of the country. In this way, a lot of technological development can be promoted. " As for the name of the new department, how about just calling it the Equipment Industry Department? After Chang Haonan finished speaking his thoughts, he looked at the group of big guys next to him. When a leader really wants to hear the opinions of his subordinates, he will definitely not express his opinion first. So Ding Gaoheng remained silent. The Department of Equipment Industry is pretty good, and it sounds like it has something to do with the military industry. Zhang Dongxu nodded first. ?Of course, on the surface, you say you agree with the naming, but in fact it is equivalent to expressing your support for the entire idea. ? He ??is from the Ministry of Electronics Industry. He had a good impression of Chang Haonan when he worked with the 14th Research Institute on jamming equipment and the subsequent early warning aircraft project. "Yes, but ours is not weapons and equipment, but heavy manufacturing equipment. Let''s play a word game with them..." The chief of staff also said that multiple departments would only be a good thing for him, so he would naturally not be able to object: In addition, I would like to suggest that universities under the former Ministry of Machinery Industry can also be included? He was able to think of this because of the painful experience in the past. When the Ministry of Shipbuilding Industry was transformed into China Shipbuilding Industry Corporation and placed under the management of the Commission of Science, Technology and Industry for National Defense, no one paid much attention to this matter until he went to Shanghai Jiaotong University. Being placed under the Ministry of Education made everyone regret it... "This...maybe not appropriate, at least you can''t eat it all." Huai Guomo, who had been silent just now, shook his head: Our Equipment Industry Department is not, at least in name, the successor to the original Ministry of Machinery Industry. It only needs to have a little bit of duplication of functions. If even schools are included, then there will be no performance at all We can consider moving Luzhou University of Technology over. In the future, the aviation industrial park will be located in Luzhou. Why should there be a school belonging to our Science and Technology Commission to provide supporting facilities? ?Chang Haonan remembered the report he wrote a few days ago. But isnt Hunan University better? ??Some people soon expressed different opinions. Didnt I tell you to keep a low profile? After all, we are still negotiating for accession to the WTO, so the WTO must give some face... Someone explained. By the way, I remember there is also Yanshan University? Its under the Ministry of Machinery Industry. What university is Yan? "Yanshan University." What mountain university? Obviously, the schools presence is not very strong. Lan Xinzhi once again closed the notebook in his hand. ?This kind of haggling scene, like buying vegetables at a wet market, must be protected after all. (End of this chapter) Chapter 455 Large die forgings manufacturing research team (10,000 per day, please Chapter 455: Large-scale die forging manufacturing research team (10,000 per day, please give me your monthly vote!)) There are only three colleges and universities under the Ministry of Machinery Industry, so there is actually nothing to discuss. In the end, everyone unanimously decided to bring Luzhou University of Technology under the jurisdiction of the Science and Technology Commission. In addition to the need to set up a supporting institution in Luzhou, another important point is that the vehicle engineering major of this school has certain strength. but not particularly powerful. When I study vehicle engineering in China these days, I really dont know what I can do after I graduate. The best position that a joint venture can provide is a workshop engineer, while domestic companies... Its okay not to say it. When the joint R&D center between Nanjing Automobile and Fiat is established, the situation may improve slightly, but at least there is really no future at present. Tanks and armored vehicles are a way out, but what was the concept in 1997? The 96A and 99 have not yet been released. The second-generation 88A/B and the earlier 59/69 tanks have been discontinued. The number of whiteboard 96 tanks is scarce. The entire armored industry production capacity of China relies on the 86 and 92 infantry fighting vehicles. maintained. The People''s Liberation Army cannot equip a few of its own, and if it is exported, it cannot compete with the large number of T72 and BMP/BTR that were almost sold at scrap prices after the collapse of the Soviet Union... In short, it is not effective at all. Those who are a little capable will definitely go abroad. In this way, retaining a group of mid-to-upper-level mainstays in the country is a more realistic choice. There is already the Kyung Seong University of Science and Technology in the north, and a seedling can be left in the south. Then lets settle it like this for the time being. Then I can apply to it and it should be fine. Ding Gaohengs final decision also means that this topic has come to an end. ?Of course, in principle, when allocating colleges and universities affiliated with the Ministry of Machinery Industry, you still need to communicate with them and the Ministry of Education. But Luzhou University of Technology is not even 211 at this time (it was only selected into the second batch in 2005), so not many people will pay attention to it, and the problem is not big. Director, have you considered seeking the authority of the Ministry of Machinery Industry to formulate industrial policies? ?After a brief silence, the director of the Policy and Regulations Department brought up a slightly sensitive topic. Although industrial policies in general are formulated by the State Planning Commission, the Ministry of Machinery Industry can still provide guidance on specific implementation directions. If it can be obtained, it will obviously be beneficial to the Policy and Regulation Department and himself. Of course, it also applies to the Commission of Science, Technology and Industry for National Defense. ?However, the impact involved in this kind of thing is much greater than that of the school just now, so he can only say that he is "fighting for it." On this issue, everyone obviously needs to be much more cautious. About half a minute passed and no one spoke again. I think its better not to be too greedy for perfection. In the end, Ding Gaoheng had to express his position: Industrial policy formulation is inherently sensitive, and it is also the main target of attacks by some people who claim that the degree of marketization is insufficient. At least until the WTO accession is completely finalized, it will be a hot potato for anyone who takes it. Although he did not make it clear, it is obvious that the "some people" he mentioned are not Americans. Otherwise, just say it and be done with it. ?The matter has reached this point, and the director of the Policy and Regulations Department also knows that this matter is definitely out of the question. ?However, Ding Gaoheng added another sentence: "Of course, there is no need to be too pessimistic. Although our Equipment Industry Department does not have this authority on the surface, as Xiao Chang said just now, we can still do a lot of things by relying on projects to lead the way and using our skills. " There are explicit and implicit authority. The former is better, but the latter is not necessarily worse. ?The twists and turns are complicated, but everyone who can sit here is an experienced person, so there is no need for Ding Gaoheng to say more. ??And he just said, "before the matter of joining the WTO is completely finalized." ?Who can say for sure what will happen after that. At this point, the affairs of the Equipment Industry Department have been basically settled. As for the specific organizational structure and staff composition, it is not something that can be directly determined at the level of the Science and Technology and Industry Committee. Finally, there is one more thing. Ding Gaoheng put down the pen in his hand and his expression became much more relaxed: Xiao Chang, the Jiangcheng Heavy Machine Tool Factory you visited last time has been basically taken over by the Ordnance Corporation. Chang Haonan, who originally thought it had nothing to do with him, suddenly became energetic: "So fast? Then the forging press project is approved..." ? ? If the heavy-duty die forging press project is approved, it will definitely be the largest project in China''s equipment manufacturing industry in the entire 1990s. It is something that will be recorded in history in the future, so he is naturally very concerned about it. Selecting the equipment in Jiangcheng was also based on the industrial base and transportation convenience here. The nearly 70,000-ton heavy-duty forging press must contain many large-sized components, both in its own construction process and in the products produced in the future. In the previous life, China built an 80,000-ton die forging press more than ten years ago, and the land transportation conditions are no longer the same. It doesnt matter if we choose Jingcheng, Sichuan Province, but Jingcheng Erzhong itself has not yet developed at this time, and there are many things Water transport, even inland water transport, is still more convenient. If additional roads need to be built for the die forging press, it will inevitably affect the progress. Ding Gaoheng naturally knew what he was thinking and raised his hand to indicate not to worry: "It''s just received at the moment. According to your previous request, in order to ensure surprise, we directly sent people to carry out a surprise attack without giving them a chance to destroy the equipment and evidence. The factory director and some important people were also controlled. , But Jiang Zhongs matter involves a lot, and the production has been damaged, so it will definitely not be possible to restart production immediately. " "For the die forging press project, you can first ask the System Engineering Department to allocate a sum of money and bring together the core team you want to do some pre-research. It is best to wait until the Equipment Industry Department is established early next year to formally establish the project, so that the whole process can be smooth. Its easier for us to control it. Structure adjustments at the ministries and commissions level are of course not just adjustments. They must be approved by the National People''s Congress, which will be early next year at the earliest. The Second Department of Systems Engineering is responsible for the construction of nuclear power and weapons industries, and is considered the most relevant department under the existing structure. Chang Haonan is not in a hurry to formally establish the project. As long as he has money and someone can work for him, it will be fine. Anyway, the design work on the turbofan 10 has just started, and it happens to be a busy time. "fair enough." ?Chang Haonan slightly adjusted his sitting posture: Its better to conduct preliminary research in the name of Large Die Forging Manufacturing Process Development and incorporate it into the Seiko Plan, so that I can step in and control it. Even though Chang Haonan is at least twenty years younger than everyone here, when he said that he wanted to intervene to control the overall situation, no one even felt that it was against the rules. Ding Gaoheng nodded directly: Okay, please report this matter to the Second System Engineering Department after the meeting, and I will take care of the money issue. In the first half of this year alone, the profits and taxes paid by the Aviation Industry Corporation were more than five times that of the whole of last year. Although the money was not directly handed over to the Science and Technology Commission, with such results, when Ding Gaoheng wanted to allocate funds Definitely more confident. Understood, Ill do it as soon as possible. Lan Xinzhi, who was recording on the side, nodded obediently. Then if you have nothing else to add, we will adjourn the meeting! As a leader, the most satisfying thing about Ding Gaoheng and Chang Haonan is that he does not procrastinate in meetings. The group of people filed out of the conference room one after another. Xiao Chang, I heard from comrades from the Ministry of Machinery Industry that you have recently made some big moves in machinery manufacturing? Ding Gaoheng has been waiting at the door for Chang Haonan to come out. "As for the bearings I told you before, I have helped the three major bearing groups and two special steel companies solve some technical problems. If nothing else happens, the new bearings may soon be installed and tested on the turbofan 9. Chang Haonan replied: With a business as big as this companys, its definitely not possible to rely solely on aircraft engine bearings, so it must apply its technology to other fields The two of them walked down the stairs side by side, talking to each other. This scene made Director Zhou of the System Engineering Department 3s eyes widen when he saw it from behind The two of them once had a relationship. ?Just a year ago, she thought about letting Chang Haonan get some experience, and then transfer him to work under her once there was an opportunity. ??As a result, he is now chatting and laughing directly with Ding Gaoheng? ? And it seemed that he just came out of the small conference room upstairs? ?This shows that Chang Haonan, an outsider, went in and held an internal department meeting that even her department-level leaders could not participate in... Can you be reasonable? (End of this chapter) Chapter 456 Mountain Eagle, a miracle created in two and a half months! Chapter 456 Mountain Eagle, a miracle created in two and a half months! The Commission of Science, Technology and Industry for National Defense has three system engineering departments responsible for special business. Another brand of the company is the National Space Administration, which is also responsible for some projects related to the electronics industry. However, because the Ministry of Electronics Industry is still there at this time, and even after next year''s reorganization, there will still be the Ministry of Information Industry, so there is not much business in this area. Mainly focused on aerospace; The Second Department is responsible for organizing and implementing the nuclear and weapons industry military-to-civilian development plan and major civilian projects. It is also the National Nuclear Accident Emergency Office; The third division is similar to the second division, except that it is responsible for the aviation and shipbuilding industries. So Chang Haonan basically dealt with the third system engineering department in the past. ?But it doesnt matter, soon after returning to Ding Gaohengs office, Chang Haonan met Zhang Yong, the director of the Second Division. Quite young, for his position, he can definitely be called a young talent. Zhang Yong himself has always thought so. Until I shook hands with Chang Haonan. None of the directors of the Systems Engineering Department are members of the Science and Technology Commission, so they did not attend the meeting just now. Zhang Yong rushed to Ding Gaoheng''s office just after receiving a call from Lan Xinzhi. office. Then I met Chang Haonan, whose name I had only heard but not his person. "Director Ding, Comrade Haonan, Secretary Lan has just told me about the need for a large-scale die forging manufacturing process development project here. I think, since Jiangcheng Heavy Machine Tool Factory is now under the Ordnance Industry Corporation, then How about directly linking the project to 201 Institute? 201 is The military research institutes established back then were complex. Chang Haonan had heard about many units in the electronics industry and the aerospace system, but he was not clear about other systems. Its the Northern Vehicle Research Institute, located in Huaishu Ridge, the capital city. Its quite convenient to run there if you need materials. Zhang Yong on the side quickly explained. No matter how much autonomy Chang Haonan has in this project, the necessary formalities and documents are still indispensable. Even if he does not need to handle it personally, being in the same place can save a lot of trouble. ?This was the best arrangement he could come up with on the way over just after receiving the call. ?Of course, there is inevitably a little selfishness involved. ?However, Zhang Yongs little point was immediately broken by Ding Gaoheng: I remember that Institute 201 had applied for several projects related to the forging of heavy vehicle parts before. Director Zhang probably had a plan to lay eggs this time. Zhang Yong was a little embarrassed when his thoughts were exposed, but Chang Haonan didn''t care: Mutual promotion, if we can give some help and inspiration to comrades in the weapons industry system during the advancement of this project, that would be a good gain. ?Things are divided into priorities. The latter now has a heavy burden on its shoulders. Of course, it is no longer possible to spend time alone on the research of specific vehicle models, but it can definitely help during the research process. Just like the bearing industry. After all, your project takes up other peoples staff and spends their money. If you dont leave anything for others, its not a good idea. Furthermore, his original idea was to rely on key projects and key technologies to drive industry development. Then thank you so much, Comrade Haonan. ?Zhang Yong, who finally found the steps, quickly expressed his gratitude: Because of Project 9910, the research and development of a new generation of armored vehicles and various chassis are now going hand in hand. As a result, the power has been dispersed. If I can borrow your light, it will be a great blessing..." This sentence is on the one hand to thank Chang Haonan, and on the other hand, it is to explain to Ding Gaoheng. ??It''s not that I want to have **** for free out of selfish interests, it''s because the time limit given by the 9910 project is too tight and I have no choice. Ding Gaoheng was just joking casually. He clicked on Zhang Yong just in passing, so he would not get entangled in this kind of thing. He just nodded: "Then Zhang Yong, please stay busy these two days and handle this matter as soon as possible. Xiao Chang, remember to compile a list of the core members you want. Although it is said to be pre-research, we give priority to ensuring the resources of this project, so Dont worry about the depth of your research. "clear!" "OK." At the same time that Chang Haonan began to work with Zhang Yong on the pre-research work. A few days later, Yunmachang, Qianzhou Province. ?As the door of the assembly workshop was slowly opened, a Dongfeng 140 truck slowly drove out of the factory. ?At the makeshift viewing platform not far away, the crowd who had just been watching suddenly burst into applause, and even two firecrackers were set off next to it. ? 20 years later, firing off cannons near an aircraft that has just arrived will definitely make the safety officer''s blood pressure rise, but now this skill is not so strict. Of course, for such a large formation, the object of celebration is definitely not the second-generation Dongfeng, which is more than ten years old, but the small and small aircraft hanging behind it. ??If you look at the tail of this aircraft, you can actually see the more obvious characteristics of the J-7 at a glance, but if you look at it from the front hemisphere, it is definitely a brand new aircraft. ? Bubble-shaped tandem two-seater cockpit, pointed double delta wings with large side wings, DSI air inlet, and an oversized radome in the nose part to accommodate the radar that may be installed in the future... It is naturally the No. 01 prototype of Coach 9. Chief Engineer Sun Huizhong followed the plane. The sunlight outside the factory directly shone on his face, causing him to subconsciously turn his head slightly. Then he saw the workshop workers standing in line next to him. Sun Huizhong almost instinctively extended his thumbs to them. It has only been a little over two months since I came back from Beijing with the design and manufacturing plans. This aircraft completed the entire manufacturing process from riveting to final assembly at an incredible speed. Although about a quarter of the parts can be used in common with the JJ-7, it is definitely an achievement worthy of special mention. This tractor you have is quite special. When I see TV, the tractors are all very short... ?? Secretary Liu, who came over to observe in the middle of the auditorium, applauded and whispered to Lin Haijun, general manager of Guihang Industrial Group, who was standing next to him. ??He has no work or academic background in the aviation field, but these days, he has asked his secretary to find many public magazines to supplement his knowledge. ??The reason why I came here from Zhucheng on this trip was not because Secretary Liu suddenly became interested in airplanes, but because there was really nothing he could do. ?Although the Coach 9 project is not a big deal for the aviation industry, its importance to Guizhou Airlines and even the entire Guizhou Province is absolutely inestimable. In the context of the late 1990s, who wouldnt want to attract investment? ??But with the conditions in Guizhou Province, let alone foreign companies, even companies from developed coastal areas rarely come to invest and build factories. ?If you want to keep people in the province well fed, you can only rely on these old military industrial enterprises from the third-line construction period. So while other places are scrambling to clear out "backward" state-owned enterprises to make room for new investors, Guizhou Province still pays more attention to Guizhou Airlines, which is originally small and transparent. ?In order to promote the final assembly of this prototype aircraft, Secretary Liu even personally set up a working group to provide all possible logistical support to the Yunma Factory. ? And the latter did not live up to his expectations. Not only did the final assembly roll off the assembly line in two and a half months, it also indirectly created a lot of benefits for the province. ?Now that this plane has finally rolled off the production line, even if he is not a biological father, he is at least a godfather, so it is natural for him to come and see it with his own eyes. Hearing this obviously unprofessional question, Lin Haijun next to him smiled bitterly and explained: Our conditions are limited. It would cost millions of dollars to import a tractor of the kind you mentioned. Lets wait until we have money later... After the first flight of the J-10 No. 01 prototype, although Guizhou Airlines has received some funding from the No. 10 project, it is still so poor that it is about to become a trousers. Naturally, it has to spend its limited funds wisely. Just rush to build two prototypes of the Coach 9. As for some details, you will definitely not care about them. Speaking of which, do we have any confirmed customers who want to buy this aircraft? ?In Secretary Lius simple understanding, no matter what is created, it must be sold to be profitable. ?Had this issue been put aside two months ago, it would have been quite embarrassing - after all, this aircraft was actually built by Guizhou Airlines with its own funds, and it was later used as the No. 10 Project Technology Demonstration Machine when it received funding. ?But now, Lin Haijun can stand tall and answer: Yes, it will replace the original JJ-7 equipment for aviation schools and training units. In addition, our Bayi Aerobatic Team has also taken a fancy to it. There will definitely be opportunities to appear in the spotlight in the future..." Thats good, thats good (End of this chapter) Chapter 457 The automobile industry is about to be reshuffled Chapter 457: The automobile industry is about to be reshuffled Until the end of the entire assembly roll-off ceremony, Secretary Lius mind was still echoing what Lin Haijun said before. It costs millions of dollars to import a tractor like that ??It was hard for him to imagine why that kind of ordinary-looking car could be sold for such a high price, but it was reasonable and the other party could not help him on this issue. Therefore, after the celebration banquet at noon, he was a little drunk and went to find Lin Haijun before getting in the car and leaving: Old Lin, why is it so expensive to import a car like the one you mentioned this morning? It costs millions of dollars to import? The latter actually drank less than Secretary Liu, but he couldn''t drink enough and was already a little unable to stand at this time. ?But to answer this kind of question, you dont need to be sober: Although this car is not big, its technical content is not low...One is...it requires a particularly large torque to tow those...large aircraft weighing tens or hundreds of tons." ?Lin Haijuns pronunciation is not very clear, but fortunately he can still be understood: Furthermore, the driving of the vehicle must be guaranteed to be stable. The precision of the chassis, wheels, etc. is very high. In addition, in order to avoid vibration of the engine, electricity and hydraulic equipment are generally used, which is also a big problem..." After talking about a few questions intermittently, he paused slightly. Just when Secretary Liu thought the other party had finished speaking, Lin Haijun suddenly continued: Actually...actually these are not important. This car shouldnt be so expensive in the first place, and...its not because we cant build it that they dare...dare to ask for such a high price..." ?This is exactly what the former wanted to ask next: Well, Lao Lin, do you think that with our technical level, it is impossible to build this car? Even if we use some imported parts? "Parts with that level of precision are all sealed to us abroad. Not to mention imported ones for assembly. Even if the tractor we buy breaks down, it has to be repaired by someone from their manufacturer. We are not allowed to be exposed to the maintenance process at all, especially the Germans. As for Goethehof''s car, my friend who works on the ground at the airport said that it costs hundreds of thousands to repair a wheel..." Half-drunk and half-awake, Lin Haijun took the opportunity to vent his dissatisfaction. Although Secretary Liu next to him also felt that the foreigner was a bit bullying, he was about to return to the provincial capital for a meeting. He really had no time to continue listening to these contents. He saw that the other party''s topic became more and more crooked, so he had to interrupt: Well, Lao Lin, you havent said yet whether its possible for us to build it ourselves. There is also a special vehicle factory under the Aerospace Corporation of China in our province. Can you try it and see if we can build airplanes and rockets... In this era, the military-industrial system itself was a small society. Although the barriers between it and the local areas were weaker than before, they were still quite obvious. ?This is why the higher authorities are eager to carry out de-administrative and group-based reforms. In short, even Secretary Liu is sometimes not clear about the relationship between the head offices under the Science and Technology Commission, especially the Aerospace Industry Corporation and the Aviation Industry Corporation. It sounds like there is not much difference. ?Lin Haijun did not answer the question immediately, but just showed a strange expression. After hesitating for a while, he said: "It''s difficult...it doesn''t mean that running on the ground is necessarily easier than flying in the sky...I guess..." ??He originally said that there was basically no possibility of it being developed within ten years. But as he spoke, he saw Sun Huizhong, who had just had a round of drinks with the workers in the assembly workshop, and a young man next to him, who also seemed to have the surname Lin. Even last year, Lin Haijun would not have dared to think that his Yunma Factory could build an aircraft that looked so advanced and modern. Moreover, as a second-level company leader under the Aviation Industry Corporation, he has no direct subordinate relationship with Secretary Liu, but the other person is a whole level higher than him, and he is still hanging around in the other party''s territory, so it is difficult to talk to him. Too direct. So I changed my words when I said it: I dont know much about the specific technology of the vehicle. I guess it will be a bit difficult in a short period of time. Youd better be cautious. The original meaning of this sentence is actually to pour a basin of cold water on it. Even if this thing can be produced in China, there is a high probability that developed regions will be the first to eat this crab. Its not like our Yunma Factory has never built cars. To put it mildly, it is called a backward product, and if it has a low EQ, it is industrial waste. As for the aerospace industry system, it has nothing to do with us. We are not a family, and I really dont know the situation, but you should still consider it... Under normal circumstances, Secretary Liu would probably have heard the implication, but he had just spoken some heroic words at the offline ceremony, and drank some wine, which led him to directly regard Lin Haijun''s words as encouragement. ?????Its a bit difficult in a short time, doesnt that mean it can be done? As for the so-called "be cautious", it means that you should do research before doing anything. So after getting in the car, he said directly to the secretary in the passenger seat: Xiao Hou, remember, when you get back, go to the Department of Machinery Industry and ask them to summarize the overall development of the national automobile industry and report to me as soon as possible. ??Although Secretary Liu didn''t fully understand Lin Haijun''s hint, he still had some idea of ??what the industrial standards of his three-thirds of an acre of land were like. Even if you really want to build special vehicles, you will definitely have to find suppliers from developed areas to cooperate and make money for assembly here. It is absolutely a fool''s errand to keep the entire industry chain in the province. Hey, okay, Ill do it this afternoon. In fact, although the Chinese automobile industry at this time is still calm on the surface, there are already undercurrents under the water. ? Its just that this impact has not yet been fed back to the vehicle manufacturers. As for users, the level of perception is even lower. ?Shanghai, Japan Seiko (NSK) Bearing Office in China. ?Sales supervisor Qing Jingbin held a folder in his hand and knocked on the office door of the office manager Haneda Shunsuke. Mr. Haneda, our forecast order numbers for October and November are not quite right. They are almost the same as the same period last year. ?Among many companies responsible for the bearing business, NSK entered the Chinese market relatively early and took the Chinese market as its main direction of attack. It has been several years since Huaxia was set up as a separate region and an office was established. Although it still bears the name of an office, it is actually at the level of a headquarters. ? Its just that NSK only has sales and after-sales business in China, so its scale is still relatively small. "How could it be? In the first half of this year, two new brands have only built factories and put into production. All wheel bearings use our products. It stands to reason that starting from May this year, there should be at least a 3-5% growth." ??Heda Shunsuke has been assigned here since the first day the China office was established. He speaks Mandarin better than many Chinese people, and he has climbed up the ranks from a business representative step by step. He knows these data clearly. ??These days, the technology sources and cooperation methods of Huaxia Automobile Manufacturing are like eight immortals crossing the sea. Not all companies that use NSK bearings will purchase through their Huaxia office, so the impact of the two new customers is actually quite obvious. The two brands he mentioned are Jiangling Ford, a joint venture, and Qirui, China''s independent brand. The latter is said to be independent, but in fact it also purchased second-hand technology from Ford, so both companies also use NSK bearings. ?At the current growth rate of China''s automobile market, relying on these two companies, they should not worry about performance issues in the next 1-2 years. "I took a look and found that our two major customers in the past, Bingfei Automobile, which specializes in mini-cars, and Jinling Iveco, which specializes in commercial vehicles, have significantly reduced the orders they placed with us, especially the former, who directly transferred their orders to us. The quantity has been reduced by three-quarters. Qing Jingbin put the folder in his hand on Haneda''s desk. Bingcheng Auto The latter opened the document and took a look: "I have an impression of this company. It should be... Suzuki''s carry, right?" Yes, the annual output in the past two years has been at the level of 50,000 to 60,000, and it is very popular in northern China. Qing Jingbin nodded. That shouldnt be the case. Carry is different from Ford. We are the only one making their wheel bearings. Whether its Daewoo from South Korea or Wanxiang from China, the imitations are useless... ?Heda Shunsuke, who felt a little troubled, lowered his head and thought for a while, but still had no clue: Ice City is too far away from us. Go to Jinling immediately and try to find out where they got the replacement from! (End of this chapter) Chapter 458 How about giving Mr. Chang a car? Chapter 458 How about giving Mr. Chang a car? In recent times, Jinling Automobile has been enjoying a happy life. In the mid-1980s, the Iveco Daily, a model that was regarded as durable in the eyes of the time, entered the Chinese market and gained wide popularity and praise in a short period of time. In 1996, the joint venture Jinling Iveco Company was formally established, pushing the sales of this model to a small peak. And this year, that is, in 1997, at the handover ceremony of Hong Kong Island just over two months ago, the overwhelming news also quoted a lot of classic pictures of the Iveco fleet of the troops stationed in Hong Kong Island passing the Luo Wu Bridge. The symbolism of this model is taken to a new level. In the following months, orders from government business departments and powerful agencies came like snow. If nothing unexpected happens, the sales volume of the entire series of Iveco models in 1997 may even exceed the 25,000 mark. If placed more than 20 years later, this number may not be comparable to the monthly sales of a single model of some popular domestically produced cars. However, in 1997, for a car company that was only in its second year of establishment, this kind of achievement was It can be said that it has reached the sky in one step. Not to mention, Fiat Group also sent a big gift last month, directly sending Fiat, Maserati and Alfa Romeo to realize the joint venture. ?At this time, Maserati''s brand tone has not declined to the level it will be twenty years later, and it still has a place in the luxury car field. Fiat is also quite capable in the field of small family cars. As for Aloma Its always good to have someone to help you with. In short, no matter how you look at it, Jinling Motors looks like it is about to take off, and even general manager Li Liangyi is in a clear mood at this time. At this time, he was discussing the future development direction of Jinling Motors with several close associates. Mr. Li, I went to Italy this time to inspect several Fiat Group models currently in production. Deputy General Manager Feng Bin said as he took out a stack of photos from an envelope and placed them one by one in front of Li Liangyi: After the other party inspected our current production capacity before, they recommended that we try the water with a simpler model first Feng Bin pointed to one of the photos, which showed a car that looked a bit like the two-box Xiali commonly seen on Huaxia Street. Fiat Uno, right? Ive seen this model before. ?This model has been sold in China through various legal or illegal channels in the past few years, so it is normal for Li Liangyi to recognize it: But the hatchback...is not very recognized by the domestic market. It would be better to make it into three boxes, just like Xiali. Ever since various cars entered the Chinese market in the late 1980s, "having a head and a butt" has been a matter of great importance. Not to mention private users, even taxi companies have looked down on hatchbacks with a flat rear by half a grade. Two low-end models, Xiali and Fukang, have deepened this inherent impression in the market. ? Li Liangyi, as the general manager of Jinling Motors, naturally understands this matter. But Xiali was able to change from two boxes to three boxes because Jinling Motors had already increased the localization rate of all vehicles to more than 90% before that. Jinling Motors did not have the capital at this time. If it wanted to change, it would have to rely on Fiat Group. . ??However, Italians are famous for their laziness. Before the Chinese market has started, let them customize a car specially for you... Just dream. ??With this diligence, Fiat would not have entered and exited the Chinese market three times in the original timeline and ended up in despair. Fortunately, Feng Bin did not go abroad just to enjoy the Western service industry. He also did a very detailed research work and immediately found another photo: Fiat really has such a model. It is not sold in their country. It is only sold to third world countries. The chassis is the same as the Uno, but the three-box model is called...Siena. Li Liangyi adjusted his glasses and stared at the red car in the photo for a while. Feng Bin next to him also saw that his leader was quite satisfied with this model: 1.4-liter displacement, four-cylinder engine, maximum power of 73 horsepower, and five-speed manual transmission. It is obviously better than Xiali in terms of appearance design, workmanship, and power. ? Its not that he was targeting Jinmen Motors. Mainly in the late 1990s, Xiali was almost synonymous with affordable small cars with a price of 80,000 to 100,000 yuan, so it was normal for it to be used as a comparison object. ?As expected, Li Liangyi nodded frequently after hearing these data: This model is okay, but the name must be changed to make it easier to remember. In addition, the localization rate must be guaranteed, which cannot be less than...40%. ??As he spoke, he stretched out four fingers and gestured in mid-air. This is a promise Jinling Motors made to its superiors in order to obtain the qualification to produce passenger cars. He must complete it no matter what. 40%Im afraid ?Feng Bin feels that this number is a bit outrageous: Mr. Li, Jinling Iveco has been introduced for so many years, and the localization rate has just broken through half. This Fiat new car requires 40% just after it is introduced, right... Hey, Mr. Feng has been abroad during this period and is unaware of some situations. Ji Nan, manager of the technical department of Jinling Automobile, who had been silent for a while next to him, let out a hearty laugh: We have already carried out loading tests on a batch of new domestic parts. Starting from November this year, the localization rate of newly produced Iveco will exceed 60%. Although Jinling Iveco and Jinling Automobile are not completely equal, for him, the manager of the technical department, this kind of thing is definitely huge good news. He then added another sentence: Furthermore, the import substitution this time is all core components, such as wheel hub bearings, transmission release bearings, and gear sets. All in all, we can make a profit of at least four to five thousand from each vehicle. Is there such a thing? ??Although Feng Bin doesn''t understand technology, he still knows arithmetic. ?With Ivecos current annual sales, each car will earn an extra 5,000 yuan in profit, which is 100 million a year. ?Based on Jinling Ivecos shareholding, Jinling Automobile can get about 50 million yuan, which is of great importance to a group that is about to make a fortune. "Yes, some time ago, a classmate of mine in Bingcheng contacted me and said that Northeast Special Steel sent them a batch of samples, and the quality was no worse than the Japanese products. I didn''t really believe it at first, but after thinking about it, He is an old classmate, and we have no business conflict with Bingcheng Automobile. There is no need to come here to deceive us, so he went over to purchase a batch of samples for testing..." ?Li Liangyi, who was sitting at the top, did not join the conversation among his subordinates. At this time, he was picking up another photo and looking at it carefully. In the photo is a beautiful blue car, which is worth a lot of money at first glance. This is the most high-end car we can introduce from the Fiat Group. The Maserati Quattroporte is on the same level as the Mercedes-Benz S-Class, and it costs more than one million to import. ?Feng Bin, who saw this scene, quickly introduced it from the side. From the eyes of his general manager, he seemed to see a trace of desire. Mr. Li, if you have an idea, we can import a few cars to test the water first. Even if we cant sell them, we can digest them internally... Internal digestion, naturally it is self-produced and sold, and used as an official car for the group''s senior executives. Forget about internal digestion. Unexpectedly, Li Liangyi waved his hand, lowered his head and thought for a while, then slowly said: "I do have the idea to import a few cars, but I plan to give them out as gifts in the name of Jinling Fiat Group, as an... advertisement." The secretary next to him immediately understood the implication. As a true confidant of Li Liangyi, the secretary knew very well why Fiat Group suddenly came to him to ask for deeper cooperation. Not to mention all of them, at least eight of them belong to the Torch Group far away in the capital. The former has always wanted to establish a relationship with the other party''s general manager Chang Haonan. ??Last time I used an advertising space to test it out, and the other party showed a very business-like attitude. ?This time, Li Liangyi, who was a little unwilling, was obviously ready to increase the stakes and try again. (End of this chapter) Chapter 459 We have a traitor in our midst! Chapter 459 We have a traitor among us! ?Compared to Li Liangyi who was in a good mood, Qing Jingbin, who had just arrived in Jinling, was not so relaxed. As the sales director of NSK Group''s China office, 1997 was a very critical year for him. ??Although Japanese bearings entered the Chinese market very early, to some extent, they were still held back by Japanese car companies that were a step slower than the Germans. From the late 1980s to the early 1990s, Volkswagen produced several classic models in China for local production. However, almost ten years later, in 1997, Toyota and Honda were still hesitating in what form and attitude they would take to conduct a joint venture. . This resulted in the entire Chinese automobile market in the 1990s, which could be said to revolve around two models. Santana and Jetta. They all use SKF bearings. Although bearings are known as the joints of industry, and any equipment with rotating parts will inevitably use this seemingly inconspicuous component, there is no doubt that automotive bearings occupy an absolute share in terms of sales and profits. Advantage. The success of German cars in China has directly allowed SKF to account for 60% of China''s imported bearing sales. However, although Japanese companies such as NSK and NTN account for a higher proportion in the industrial field, they still cannot reverse their overall dominance. Unfavorable situation. ?Under this situation, NSK has begun to consider officially upgrading the Huaxia office to the Huaxia region and building a bearing factory in Luzhou and Suzhou respectively. ??And if Qing Jingbin can produce strong enough performance in the past two years, then there is a high probability that he can go one step further and sit in the highest position left to the Chinese people at NSK, that is, the deputy minister of the Huaxia Region. So this matter cannot be ignored by him. Investigating the situation of Jinling Iveco is not difficult for Qing Jingbin. It is true that bearing manufacturers are suppliers to Party B compared to OEMs, but in daily contact and communication, they are often much stronger than Party A as they hold key technologies. What''s more, NSK is still a foreign company, and people are absolutely superior to others. It is normal to develop some eye-liner relationships within the OEM or dealer network. ?So Qing Jingbin didnt spend much effort and got some information from a Jinling Iveco worker over a McDonalds meal. You said that starting from November this year, the newly produced Iveco will be replaced with a batch of domestically produced parts? When he first heard the news, the formers first reaction was ridiculous. Before he came to Jinling, he had thought that some of his peers might have deliberately lowered prices to compete and steal business. However, he considered the suspects from NTN to FAG to SKF, but he never thought that Jinling Iveco would be so bold. Use domestic bearings. "Yes, I heard it from my second uncle two days ago. He works as an inspector in the technical research and development department of our factory. He said that each car can make several thousand more dollars in profit." The young man who was found lowered his head and took a bite of the burger. ??The treatment given by Jinling Iveco is good, but for him, the opportunity to eat this kind of foreign fast food is still very few. You dont want word of mouth? If you use fake and shoddy parts to replace imported goods, or key parts like wheel bearings, customers will find problems after driving hundreds of kilometers, and then even my reputation will be ruined! Of course, Qing Jingbin could not be stupid enough to reveal his identity publicly when he was developing an informant. Therefore, he had always used "a car dealer who wanted to get some inside information" as a cover for his activities. It is reasonable to show such anxiety at this moment. "I don''t know the specifics, but I haven''t heard that the marketing department is going to change the after-sales standards. I think there won''t be any big problems. Most customers don''t care which supplier the parts come from. " The young man opposite shrugged: "Actually, I know that many drivers will directly replace auxiliary parts when repairing their cars. So why are the Japanese bearings from Enesk so expensive? Replacing four bearings at a time can save dozens of dollars. It doesn''t matter. I heard the quality is different from the original one. Nonsense, the kind of auxiliary parts you are talking about are... Qing Jingbin swallowed his words halfway. Of course he knew that what the other party said was completely true, because the so-called "auxiliary factory parts" that are only twenty or thirty yuan cheaper than the official ones sold by NSK, but have exactly the same quality, were obtained privately by Haneda Shunsuke from Japan through special channels. selling. Including Qing Jingbin himself also participated in it. It is naturally impossible to say such a thing. But they also have a sense of proportion in such actions. The quantity of goods they put on the market each time is not large. Jinling Motors cannot rely on these three melons to build cars. So there must be another supplier. Thinking of this, Qing Jingbin leaned his head slightly and asked in a low voice: That new bearing you mentioned, can you make a sample for me to see? You asked me to steal something? One sentence scared the hamburger out of the hands of the young man opposite: Thats illegal, I wont do it Although theft of trade secrets is actually a crime, in this day and age, it is obviously unlikely that an ordinary worker would understand the concept of the crime of infringement of trade secrets, and this crime is rarely enforced in practice. ?However, stealing and committing a crime is the simplest cognition. "Okay, indeed, I was the one who was abrupt..." After weighing it, Qing Jingbin decided to adopt a gentle approach rather than a coercive approach: You dont need to actually take out the samples, as long as you can find out where your factory procures the new bearings from, I can give you 100 yuan as a reward. "this" Obviously, 100 yuan is definitely attractive in this era. ?However, the young man opposite was obviously not completely brainless. After hesitating for a moment, he asked doubtfully: What do you do that interests you? "I" Qing Jingbin was asked for a moment. Fortunately, his mind moved quickly and he came up with a reasonable explanation in an instant: I sell cars. If your factory needs to replace parts, then the so-called original parts I use when repairing peoples cars must also be replaced. I have to be prepared in advance... ??There is a big difference in the price between getting the same parts directly from the supplier or going through the car manufacturer. Theoretically, the OEM will sign a contract with the supplier, requiring the latter not to go beyond its own supply to dealers or repair shops. However, this kind of contract has almost no actual restrictions, as long as the parts supplier does not play too hard. If you go too far, no one will usually pursue it. Okay, Ill check with you in the next two days, and you wait for my call. ?The young man finished the last bite of the burger, wiped his hands and left McDonald''s. It should be said that the efficiency of this informant is very impressive. Just the next day, Qing Jingbin received the message from the other party. Bearing parts are from Northeast Special Steel Group. In fact, Qing Jingbin was able to learn all this so easily, mainly because this matter was not considered a highly confidential matter within Jinling Iveco No matter how tight it is now, when the new car comes out in November, if someone is willing to check the supplier changes, or simply dismantle a car, everything will be known. The next day, NSK Bearing China Office in Shanghai. Northeast Special Steel ?Heda Shunsuke muttered this name. He had no impression of this name at all. NSKs main competitors in the past were several big brands from Europe. In Hanedas perception, Chinas local brand bearings could not pose any threat to itself. Qing Jingbin took this opportunity and quickly introduced: Northeast Special Steel is a new company formed by the merger of three special steel companies at the end of last year. I think it is impossible for them to produce products comparable to our NSK in just over half a year on their own. You are right, Mr. Qing If this is the case, there is only one possibility... Haneda, who was behind the desk, touched his chin lightly as he spoke: We have a traitor among us! "ah?" Qing Jingbin was about to get up and deny it, but then realized that the "we" Shunsuke Haneda said was not him and himself, but other Japanese companies in China. As Japanese companies go overseas, although there are constant overt and covert conflicts on the surface, there is actually an industrial alliance. ?For example, in the field of machine tools, the bearings exported by NSK to Chinese companies cannot threaten the models sold in China by brands such as Okuma, Makino, and Mitsubishi. Correspondingly, in the field of bearings, the raw materials exported by Datong Steel cannot threaten the models sold in China by brands such as NSK and NTN. In Haneda Shunsuke''s view, the only way a Chinese company can produce products with similar performance to Japanese bearings is if someone breaks this rule and sells parts that exceed the limit to Tohoku Special Steel. ? Considering that NSK itself has used a large number of Chunzhongdao products, and the latter has recently actively invested in building factories in China... ?The answer seems to be self-evident. Qingjun, thank you for the information you obtained from Jinling. I will inform the country and let the superiors negotiate with Chunzhong Island. ?Heda Shunsuke raised his head and showed a satisfied smile: In addition, if this matter can be properly resolved, I will also recommend you to the headquarters for the position of deputy minister of the Huaxia Region... When Qing Jingbin heard this, he half-bent down excitedly and bowed: Thank you, Minister Haneda! (End of this chapter) Chapter 460 J-11 final assembly rolls off the assembly line, multi-arc ion plating technology! Chapter 460 J-11 final assembly rolls off the assembly line, multi-arc ion plating technology! Chang Haonan certainly didnt know yet. His subsequent phone call, which was intended only to solve the problem of the localization rate of helicopters, would bring a major earthquake to the entire Chinese automobile industry. At this time, he came to Shengjing on another business trip. Because the first two J-11s that were assembled by Factory 112 have rolled off the assembly line. Of course, after all, it is just final assembly, and the difficulty itself is not that great. The main focus of Factory 112 and Institute 601 in the past six months has actually been on sorting and translating technical data related to the Su-27 aircraft, as well as contacting Sukhoi experts. Discuss the next steps for improvement. ?Originally, this was not a big event, and the factory did not plan to hold any large-scale celebrations. However, Chang Haonan had never seen the domestically produced J-11 series fighter jets in his previous life, so he took this opportunity to quench his thirst. ? It was still United Airlines Tu 154M, and it was still Taoxian Airport, but the person traveling with him became Zhu Yadan, who was protecting Chang Haonans safety. As a Ph.D. majoring in aircraft design, Yao Mengna is a genius in the normal sense after all. It is difficult for her to seamlessly switch between the two thinking modes of inflow design (aviation engine) and outflow design (aerodynamics) like Chang Haonan. Therefore, she After assisting in the development of the first version of TORCH Multiphysics, he did not choose to participate in the research and development of the Taihang project with Chang Haonan. Instead, he chose to join Project 11, responsible for the digitization of J-11 technical data and the improvement of production processes. So actually, Yao Mengna has been staying in Shengjing during this period of time. ?As for Xu Yang, she is actually not very interested in airplanes. She is currently still working on an algorithm that can directionally modify GPS positioning data. The process of getting off the plane from Taoxian Airport has become as instinctive to Chang Haonan as eating and drinking. As usual, there was a car waiting for him at the door. He Ming, deputy chief engineer of the 112 Factory, came to pick him up in person. He and Chang Haonan were old acquaintances. After meeting, they just shook hands and got into the back seats on both sides of the car. Mr. He, the conditions in your factory seem to have improved a lot during this period. ?The morning of early autumn in Northeast China was already a bit cold. Chang Haonan tightened his tight coat and looked around at the new decorations in the car and said. ?The last few times he went to the 112 Factory, he took a 212 Jeep, but this time he had a brand new Jetta King. ?Although it is not a good car, and it is most likely a business version (extreme simplified version) supported by FAW''s sister units, it is still a serious passenger car, much more comfortable than the 212 in the past. On the other hand, when Yao Mengna was talking to him on the phone, besides discussing technical issues, she would also talk about some miscellaneous things in life. According to the former''s description, the food in Factory 112 was much better than a year ago, at least except for breakfast. You can see the fishy smell everywhere... "That''s for sure. In the past six months, there have been a lot of domestic orders, plus the F4 upgrade order from Persia. Although the money does not fall directly into our factory, it is still much more abundant than before, at least the wages of employees and welfare can be guaranteed, and the food expenses have also increased from 6.3 yuan to 7.9 yuan..." ?As the deputy chief engineer of the entire factory, He Ming is responsible for a lot of management and organizational work in addition to technical aspects. He is very familiar with these things. Only by solving the worries of employees can we keep them working in a down-to-earth manner. As the two of them chatted, the car quickly drove to Beiling Airport, near the final assembly workshop of Factory 112. Come back again ?Chang Haonan opened the car door, got out of the back seat, and then took a deep breath of fresh air in the suburbs of Shengjing. ? It was here that he witnessed the first flight of a new model for the first time after his rebirth. It was the J-8C03 prototype after extensive modifications in design. Nearly a year has passed, and both Chang Haonan himself, Factory 112, and even the entire Chinese aviation industry are no longer what they used to be... Long time no see, junior brother. Yao Mengna has obviously been waiting here for a while. When she saw Chang Haonan getting off the car, she came up to her and took the initiative to say hello. Long time no see. Is the project here going well? ?Although we have communicated on the phone before, the project issues are not as direct as face-to-face communication after all. "Okay, it''s all the parts I''m good at, digital design and production, and structural analysis." Yao Mengna lightly shrugged and replied: "We have begun to change the production process of the domestically produced J-11 body frame from welding to integral forging, and have also increased the amount of composite materials. However, these will have to wait until at least the third batch of aircraft to be used. The first two batches The technical conditions are basically the same as the original products produced in Gongqingcheng. ?While the two were chatting, an aircraft with a yellow fuselage and gray radome had been pulled out of the assembly shop. As usual, there is a big red flower tied on the nose of the aircraft. ?Chang Haonan has even begun to adapt to this earthy aesthetic now, and it actually looks pretty good at first glance. He had seen the Su-30MK at the Xiangzhou Air Show before, but because he was very busy at the time, he had no chance to take a closer look. Now that he was getting closer, he could intuitively feel the exaggerated size of this aircraft. ?However, the sharp-eyed Chang Haonan soon discovered that this aircraft was actually a little different from the previously imported Su-27SK. Have you replaced the wingtip pylons? ?This first mass-produced aircraft with production batch number 110101 has been replaced with a trapezoidal double-layer pylon similar to the previous J-11B, instead of the original Su-27''s straight pylon. Of course, this change itself does not have any technical difficulty. It is just to make this pylon compatible with the Pili 8 air-to-air missiles whose wingspan is too exaggerated. In practical applications, in most cases, the pylon will be directly removed at this position. It can be said that choosing an electronic warfare pod is not a very important change. But the symbolic meaning is completely different. On the first aircraft that rolled off the assembly line at Factory 112, Sukhoi made special modifications based on the actual needs of the Chinese Air Force, which was obviously a good start. Yes, this was proposed by Yao Gong before. ?He Ming walked over from behind and stood side by side with Chang Haonan: After all, although R73 has been purchased in large quantities, if one round is lost, our main force must be domestically produced ammunition. Yao Mengna glanced at He Ming who suddenly interrupted, but the latter had no idea and had to return to the topic: Selling your soul is something that happens again and again. When we first started to modify the J-11 with us, Sukhoi was a little bit hesitant, but later he got used to it and it was nothing. Although the J-11 cannot be called a new model in any way, the first two aircraft still have to undergo some ground tests first and cannot be tested immediately after leaving the factory. So the celebration lasted very short, and it ended with everyone gathering around the plane and taking photos. After the conversation came to an end, He Ming pulled Chang Haonan to a slightly remote corner: Comrade Haonan, there is something we want to contact you about. You are coming over today, so we can discuss it in person. ??The latter nodded slightly, indicating to the other party to continue speaking. "When we tried to install the electronic warfare pod you developed on the J-8C, the engineers at Sukhoi hoped to obtain complete related technologies through peer-to-peer exchange. We asked the 14th Institute of Electronics, and they said You agree to let us handle it, but we ask for your opinion first. Chang Haonan was stunned by one sentence. ??He never expected that the day of reverse export of weapons and equipment to Russia would come so soon. Although the transaction method is quite special. Of course you can exchange technology for technology, but it depends on what the other side comes up with. After thinking for a moment, Chang Haonan replied: "We don''t expect to take advantage of the other side, but we certainly can''t suffer a loss." "Now Lao Maozi has established a unified unit responsible for the import and export of weapons and equipment, so the things that can be taken out are quite complicated. The conditions they offered this time are that they can transfer a complete set of multi-arc ion plating equipment, as well as related technology!" (End of this chapter) Chapter 461 The technical puzzle of high-performance aviation engines Chapter 461 The technical puzzle of high-performance aviation engines Are they so open-minded? ?The attitude of the Russians is indeed unexpected. After all, the change in thinking from selling technology to exchanging technology for technology is not that easy to complete. Hey... Yao Gong just said it right. Once it is familiar, it will be familiar again. They are all willing to work with us to modify the Su-27, so naturally they will not care about these small things..." He Ming shrugged as he said: "Furthermore, although neither side of us has publicized the Royal Navy''s failure in the South China Sea, the British themselves know it. The Russians must have received the news earlier and will check with us about the situation. , it is not difficult to guess the origin of the story..." "At the beginning, Lao Maozi came up with the article that both sides have equal rights to the technology within the framework of Project 11 and asked for sharing, but I told them that this was developed independently by the Ministry of Electronics Industry and was not related to Project 11. It doesnt matter, only later He then briefly introduced the ins and outs of the whole matter. If thats the caseits really worth trading ?Chang Haonan nodded in agreement without too long of hesitation. ?Multi-arc ion plating, a vapor deposition coating technology developed on the basis of vacuum evaporation technology and vacuum sputtering technology. Due to its advantages of safety, high deposition rate, and good film adhesion, it is one of the most important process methods in the field of coating manufacturing in the past and next twenty years. Almost all high-end machining fields are inseparable from coating manufacturing. From the hard wear-resistant coating on the surface of machine tool tools to extend the service life, to the thickening treatment on the outer surface of bearings to enhance endurance, to the thermal barrier coating on the surface of spacecraft components to mitigate the huge temperature difference in space layer, as well as what Chang Haonan urgently needs right now, the high-temperature corrosion-resistant coating on the surface of the aircraft engine turbine blades, all require the same type of technology for production and manufacturing. In the past, the multi-arc ion plating equipment available in China were all very low-grade and backward models. Not only were the coatings of poor quality, they also had various restrictions on coating materials. Therefore, most of these components could only be directly imported. Of course, You can''t buy anything with particularly high specifications. Obviously, Lao Maozi has done his homework. Exchanging key electrochemical processes for electronic warfare technology, this wave is basically equivalent to learning from each other''s strengths and weaknesses. In fact, unlike many stereotypes, the electronics industry during the Soviet period, especially after the 1980s, developed quite rapidly, and even the gap with the United States was basically only a few years. ??However, the problem is that these industries are concentrated within Belarus and the three Baltic countries. After the disintegration of the alliance, almost no legacy was left to the current Russian Federation. At the end of the 1980s, there was a difference of a few years. After nearly a decade of complete stagnation, by the end of the 1990s, the difference is more than twenty years. After all, the entire 1990s was an era of explosive growth in the electronics industry. If you miss this dividend period, the loss will be far more than just 10 years on paper. The situation in electrochemistry is exactly the opposite. ??Although multi-arc ion plating technology was first put into commercial use by Multi-Arc and Vac-Tec, few people know that a considerable part of their key technologies were actually purchased from the Soviet Union in the late 1970s... Thats right, even at the height of the Cold War, the two sides of the Iron Curtain did not completely cut off technological exchanges and exchanges. ?The reason Chang Haonan knows this is because there was a Russian-made STANKIN-NBC-1 multifunctional coating system in his laboratory in his previous life. Although it is not his own project direction, among the devices with Chinese and English operating interfaces, the unique Russian interface of this device really gave the entire research team a headache for a long time. In the end, a dozen or so people compared the Russian dictionary word by word before they could barely figure out how to operate it. Not to mention, it is really easy to use. The bonding strength of the film layer of the sample produced exceeds 100N, which is almost three times the bonding strength of the sample purchased from a third country... In short, if this deal can be done, it will definitely be a good thing for both parties. ?However, Chang Haonan quickly gave another instruction: "If you want to exchange, you must remember to bring a controlled planar arc evaporator and a fast neutral molecular beam source during the negotiation. At least the equipment must be obtained. These two things are independent components outside the coating equipment, but they play a role "In addition, there are electronic heating and gas ion sputtering cleaning, which can allow metal particles to pass through the isolation screen and enter the interior of the cavity. Coating the workpieces cleaned by sputtering in the cavity is very important for our turbine blades and future machine tool production, so not only the equipment, but also the technology must be obtained, even if it costs a little more..." At this point, he suddenly stopped, glanced at He Ming next to him, and shook his head helplessly: Oh, forget it, Ill write you a memo when I get back. You probably wont be able to remember it now... "I" ?He Ming felt as if he had been slighted. ?He wanted to refute, but he couldn''t. Because he really didn''t remember... ?Lies will never hurt, the truth is the sharpest knife. Chang Haonan''s speech speed was already relatively fast, and He Ming himself was not an expert in the relevant field. Four consecutive proper nouns that were slightly awkward to pronounce immediately shut him down. Then Ill trouble Comrade Haonan... Fortunately, He Ming''s mentality was good and he quickly adjusted back: But speaking of which, you actually do research on electrochemistry? ?Although he had a lot of contact with Chang Haonan, it was basically limited to the period of the August 3rd Project, and his understanding of the latter was obviously not comprehensive enough. Thats not true. I havent learned much about chemistry other than physical chemistry since I went to college. I may get involved in it in the future, but definitely not now. Chang Haonan waved his hands and denied: Its just that Im leading a team to work on the turbofan 10 recently. Many parts are inseparable from high-performance coatings. I just read some information and I understand it, but I cant talk about research. ??He is indeed not modest. If he really understands electrochemistry, why would he need to exchange technology for technology? He can just develop his own set and be done with it. In fact, he has never had serious contact with chemistry in his whole life, and the current situation does not allow him to learn it slowly from scratch. Even if there was no such thing, Chang Haonan would still like to buy a few of the same model that he used in his previous life. The third-generation turbofan engine is an extremely difficult peak for China''s current industrial foundation. In this process, every possible method must be used. Turbofan 10 Speaking of this matter, He Ming immediately became energetic: Comrade Haonan, do you have a rough plan? When can our J-11 use domestic aviation engines? As the deputy chief engineer of an aircraft manufacturer, he only has a general understanding of aerospace engineering projects. "This...of course it is possible. Within five years, we will completely get rid of our third-generation aircraft''s dependence on imports within five years." Chang Haonan''s plan is to at least have the J-11 equipped with a full-state prototype equipped with a domestic engine during the 1999 military parade, but his habit has always been to keep his words to himself. ?Of course, even the unspecified plan was enough to surprise He Ming: Look at it this way, before I retire, is there still a chance to build a 100% domestically produced third-generation fighter jet? "certainly" (End of this chapter) Chapter 462 High-performance film cooling, breaking through the temperature in front of the turbine Chapter 462 High-performance film cooling, breaking through the temperature in front of the turbine ?After attending the first aircraft roll-off ceremony of the domestically produced J-11, as the chief designer of the turbofan 10 project, Chang Haonan has arrived in Shengjing, and he must visit the 606 Institute and the 410 Factory. After all, its all coming. For China''s aviation industry, the turbofan 10 is almost a "zero-based" engine. Although some of the technologies previously developed during the development of the turbojet 14 can be used, not many of them can be used. As for the older models, they have no reference value at all. Before the Turbojet 14, China did not even have an aerospace engine research and development system in the strict sense. Therefore, in order to improve efficiency, Chang Haonan adopted an unprecedented parallel operation of the design and production lines on this project, at the cost of increased risks and workload. Mr. Chang. Chang Haonan came to Shengjing on a temporary basis, and he only showed up at Factory 112 after getting off the plane. Therefore, after he arrived at Factory 606, except for Hai Yide, the chief engineer who had been leading the organizational work in Shengjing, other people Not even prepared. Why didnt Mr. Chang tell us before he came? Lets clean it up... An engineer following Haiyide touched his unshaven temples, which had obviously not been taken care of for many days, and then glanced at the design research room, which was almost covered with all kinds of information and diagrams, with a look of embarrassment on his face. expression. Although engine design work has now been digitized to a considerable extent, this room is actually a place for communication and discussion among several of their R&D groups. After all, aviation development is a complex system engineering. It is impossible to just knead several parts together like kneading clay and then be done. The failed compressor design at the beginning of the Turbojet 14 has proved that this approach will never work. Therefore, even if it is still in the early stages of the project, everyone still needs to frequently communicate with each other under the leadership of the overall design team to prevent the development direction of a certain subsystem from going too far. In this process, paper materials are often more convenient. After all, there are no online working software these days. This is out of the ordinary, isnt it? Chang Haonan casually put aside a huge drawing that covered two chairs, and then sat on one of them: Although I am not always in Shengjing, since we are the same R&D team, we are a family. Dont act like you are welcoming the leader. Since the design of aeroengines involves a large number of complex numerical calculations, and currently the city with the richest supercomputing resources in the country is Beijing, and the compressor research center planned for the future is also located at Beijing Hang University, there are actually quite a few The R&D personnel are stationed in the capital with Chang Haonan. ??Furthermore, he is also a front-line designer and has a deep understanding of the mental state of everyone during the project process, especially the critical stages of starting and tackling key problems. ?If the office is messy, let it stay messy. Once it is sorted, there will always be something you can''t find. ?As the chief designer, he is almost everywhere in the entire project. There is no need for him to show his presence by messing around like some leaders. After everyone took their seats, Haiyide quickly brought the topic back on track: Okay, we are almost here now. If you have anything you need to report or ask to Mr. Chang in person, it can save you the trouble of a business trip to the capital. Please hurry up and say what you need to say and ask what you need to ask. Although Chang Haonan is usually in BJ, he does not just abandon Shengjing. Each research and development direction must submit project progress reports every week, and he will also give feedback as soon as possible, so although Its been two months since Ive been to School 606, but theres no grand occasion where everyone has accumulated a bunch of questions and is actively asking them. Mr. Chang, lets report the situation in the combustion chamber first. After a brief silence, an engineer who looked about fifty years old spoke first. Yin Yongze, one of the deputy chief designers of Turbofan 10, is also the person in charge of combustion chamber technology R&D and design. He participated in the design of my country''s first annular combustor in the Turbojet 14 project. Although in terms of paper performance alone, the immature design is not much better than the previous annular combustor, but due to the flame The barrel is an integral annular cavity, so the space utilization rate is higher, the outlet flow field is evenly distributed and the cooling pressure required is relatively small. Simply put, the potential is greater. It was precisely because of Yin Yongzes experience that Chang Haonan dared to hand over the combustion chamber, one of the three core components of the machine, to him. "When I reported to you last time, we had already set up the high-pressure test platform for the combustion chamber. During this period, we also carried out some preparation work for parametric design. It is expected that the number of high-pressure tests can be reduced to about half of the previous level. The next step is to start developing calculation models and parameterizing the system. However, the combustion power we have determined now is a bit large, and the requirements for cooling intensity are very high. I wonder if the compressor can provide 6%-8% more Intake flow? Yin Yongze said as he slid a piece of information in his hand along the table in front of Chang Haonan. The latter looked through it carefully and found that it was related information on parametric geometric modeling of an annular combustion chamber. "The pre-processing work has been done well. In addition, when developing the calculation model later, remember that in addition to the standard centrifugal nozzle, the atomization model can also be used to construct the structure of the centrifugal oil slinger." ??????Since human beings'' understanding of the combustion process is still unclear It is relatively unclear, so in terms of combustion aerodynamics and structure, numerical calculations play a relatively small role, and the research foundation for combustion chamber structures is not as good as that of compressors and turbines. Yin Yongze can achieve this level of parameterization, and it has indeed been Pretty good. Oil dumper? ?Chang Haonans request stunned Yin Yongze: Our design ?However, he was interrupted by Chang Haonan halfway through: "Of course, the big push for turbofan 10 is to use centrifugal nozzles, but jet power will definitely become more popular in the future. Small aeroengines are needed in places like cruise missiles and drones. The oil supply pressure of the oil dump plate is low and unstable. Its easy to block, and the most important thing is that its cheap. We just take advantage of the current opportunity to lay a foundation. Compared with other aviation development researchers in China in this era, Chang Haonan''s greatest advantage, apart from cheating, is his longer-term planning ability. Okay, well pay attention when the time comes. Yin Yongze opened the notebook in front of him and wrote down this request: Mr. Chang, the matter of intake air flow... 6%-8% is too much. Chang Haonan immediately shook his head: "Now the overall design level has basically determined the structure as 2-8-1-1 structure or 3-7-1-1 structure, so the margin left at each level is very small, 6% to 8% is almost Adding another level of high pressure will definitely not work. But our demand for cooling air flow is indeed much greater. If it doesnt increase..." Film cooling can be said to be a landmark technology in the history of aero-engine development, but the use of gas for active cooling is not without cost. The gas used for cooling cannot be used for propulsion, which is equivalent to losing a considerable part of the compressor power. . Hence, although theoretically better results can be achieved by simply increasing the amount of cooling gas, in actual aircraft engine design, the gas loss rate must still be taken into consideration. If the inner wall of a combustion chamber consumes at least 6%, then counting the turbine with greater cooling pressure... Also plays with a hammer. If you let out nearly one-fifth of the air that the compressor is working so hard to bring in, it may be acceptable for engines with output shaft power such as turboprops and turboshafts, but for turbofan engines, it is basically It''s just useless. ??And if another level of high pressure is added, it will become 3-8-1-1, which is not even close to the current AL31F. The performance of AL31F is certainly adequate, but its potential is not. It is a design from the late 1970s after all. What is the upper limit of your combustion chamber outlet temperature setting? The temperature in front of the turbine of turbofan 10 (that is, the combustion chamber outlet temperature) is set at 1200-1250C. This is a decision made by Chang Haonan himself, but the cooling system must leave a certain margin. How much margin is left is Yin Yongze''s job. . Leave 5% margin, 1325. This margin is of course calculated based on the Kelvin temperature. Yin Yongze then added: This cooling requirement is too high. We can only use slot cooling to replace the round hole cooling on the turbojet 14, and the demand for air flow increases. ?Now Chang Haonan finally knew what the problem was; "Don''t use slot cooling. My next plan is to study a high-efficiency formed hole cooling solution for the turbine part. Using special-shaped holes instead of round holes can theoretically achieve an effect close to slot cooling without increasing the air consumption. You guys Lets continue to calculate other structures based on 1325C. The specific cooling plan will be determined after I develop the porous media model with special-shaped holes. Although the temperature at the combustion chamber outlet is undoubtedly the highest part of the entire engine, ultimately converting the energy of the high-energy gas into mechanical work still requires the turbine. The latter not only works in a high-temperature and high-pressure environment, but also needs to rotate at high speed and withstand external overloads. Therefore, the requirements for materials and cooling technology are higher. If a cooling technology can be used on the turbine, then moving it to the sidewall of the combustion chamber is generally not a big problem. (End of this chapter) Chapter 463 Do you want to install 70? Chapter 463 Do you want to settle 70? After all, Chang Haonan himself has already taken charge of two of the three most critical components. Therefore, except for the combustion chamber, the remaining problems encountered in the remaining directions are all minor problems. Even if he doesn''t come this time, we can wait until the next report to solve the problem together. ?Of course, having said that, the improvised Taihang Engine Project Progress Meeting still lasted for a full afternoon. Supper will naturally be taken care of at 606. As for the 410 factory, we can only talk about it tomorrow. In fact, in the field of aviation engine manufacturing, there is nothing that needs to be handled by Chang Haonan recently. Several bearings required for the new generation of engines are still in the sample testing stage. Even if they are installed, they will be tested on the turbofan 9. What really attracted him was a TF30 engine that the 410 Factory had just shipped back from Persia some time ago. ?At first, we were planning to see if we could do a life extension upgrade, but later, after inspecting the 410 factory, the Persians decided to give up and wait for the turbofan 9 to be directly replaced after all localization work was completed. ?Although this model is notorious for its performance on the F14A, this is largely a problem with the F14. At least the same or similar models perform well on the F111 fighter-bomber and A7 attack aircraft. ?Hence Chang Haonan is quite interested and has always wanted to have a chance to go and have a look. However, plans cannot keep up with changes. ?Just that night, Chang Haonan, who was staying at the Aviation City Guest House, received an urgent call from the Commission of Science, Technology and Industry for National Defense, asking him to go back for a meeting the next day. ?Then there is no other way but to do it next time. Fortunately, the Persians were not prepared to take the trouble to take back the TF30, which had actually exhausted most of its life, saying that it should be kept as a commemoration of the cooperation between the two parties, so they were not in a hurry. The next day, Chang Haonan took the earliest flight back to the capital. He is already familiar with holding emergency meetings of the Science and Technology Committee. Generally speaking, if it is a meeting related to technology or industrial issues, unless it is necessary to use an outside phone or even a mobile phone to contact the meeting, the specific content will definitely be explained directly. After all, if you want to discuss these, you must prepare some information in advance. ?Situations like this that only notify a time and place basically indicate that there is an emergency, and it is most likely to be policy-related. So after getting off the plane, Chang Haonan didn''t even return home, so he took a car and rushed directly to the Science and Technology Commission. Compared to the last meeting where there were only members of the leadership team (and Chang Haonan), this meeting was obviously much more open. Because there were many new faces that Chang Haonan had never seen sitting on both sides of the conference table. ??This is not Chang Haonan''s nagging. After more than a year of hard work, he has at least met all the leaders at the department and bureau level of the Science and Technology Commission and above, if not he knows them all. As usual, Chang Haonan found a seat on the left side of Ding Gaoheng and sat down, opened the notebook he brought with him and prepared to wait for the meeting to start. Comrade ChangerHaonan? A voice that sounded familiar to the former came from the side. ?Chang Haonan turned his head and thought for a while before remembering the identity of the other party. Director Zhou. ??The director of the Third System Engineering Department whom I had met before. Speaking of which, the other party was actually the first mid-level and senior leader of the Science and Technology Commission system that Chang Haonan came into contact with after his rebirth. ? And from the perspective of business division, he who is mainly responsible for projects in the aviation field should mainly interface with the System Engineering Division Three. ? It was just that due to a series of accidents that happened later, Chang Haonan was promoted from facing the research institute to directly connecting with Ding Gaoheng himself, surpassing the stage of being responsible for the department-level units and the Aviation Industry Corporation. So much so that he didn''t even notice the other person''s identity when he sat down just now. After all, you cant really remember the faces of people youve only met once. Originally I couldn''t remember what it was called, but the cover of the book in front of the other party happened to be opened, and the word "Zhou Rong" was written on the first page. I guess it was the name. Zhou Rong obviously wanted to say something more, but at this time, Ding Gaoheng and Huai Guomo happened to walk in from the outside, so she had to swallow her words. In fact, in such a large organization, the department leaders responsible for specific operations may not be very well-informed. ?System Engineering Division III is only responsible for aviation and shipbuilding, but Chang Haonans influence today has long been not limited to these two fields, or even limited to the Science and Technology Commission system. ?Especially the hard identities with official seals, such as the general manager of Torch Company and the members of the 973 Project Expert Advisory Group, are actually concentrated on the Science and Technology Committee. So it wasnt until the last time I saw Chang Haonan and Ding Gaoheng walking side by side and talking and laughing, that Zhou Rong made some special inquiries and found out how far Chang Haonan had reached. You must know that she was also one of the few people who interviewed Chang Haonan. If you really want to talk about it, this status is a little bit "Bo Le". Although it is definitely not as orthodox as Du Yishan, if Zhou Rong had done more contact and management in the past year, it would not be difficult for Zhou Rong to close the relationship between the two. However, after she threw Chang Haonan into the August 3rd Project, she never paid much attention to him. After all, no normal person could imagine such a development. Now that others are in front of me in meetings, there is no point in emphasizing what happened back then... In short, I feel regretful, very regretful. There was once an opportunity to reach the sky in one step, but I didnt cherish it... ?Just when Zhou Rong was upset about her past choices, Ding Gaoheng coughed twice and officially announced the reason for convening everyone for this meeting. In July this year, a boss of ours who was doing business within the CIS contacted us and said that he had some connections in Kyiv and asked us if we were interested in some of the legacies left after the disintegration of the alliance. "At first we didn''t take it too seriously and just asked comrades from relevant units to maintain routine contact. But some time ago, the other party really provided us with a batch of technical information and samples of special steel for ship use. Although we needed The price is not low, but after appraisal by domestic experts in the field of shipbuilding, the quality is quite high and can even be used to build heavy ships such as aircraft carriers or large supply ships. It is definitely worth the money. Now the boss has contacted us again and said that he has channels to directly cooperate with Motor Sic Group and Antonov Group to inquire about domestic wishes. After Ding Gaoheng introduced the situation, Huai Guomo also added next to him: "When we were negotiating with Ilyushin before, we pretended to have contact with Antonov, but we did not discuss the conditions for cooperation in depth at that time. We were just using it as a bargaining chip to lower the price of Ilyushin 76MF. This time if they really seek For direct cooperation, I think it is most likely to be the An-70 transport aircraft project. Now we will soon receive a large number of IL-76MFs. If we continue to develop An-70s, will there be overlap in positioning? ??Some people soon raised doubts. That wont happen. Zhou Rong, who was sitting next to Chang Haonan, continued: "Although the maximum payloads of the two aircraft are close on paper, the An-70 is essentially an enlarged tactical transport aircraft and can be regarded as a superior replacement for our Y-8. The maximum take-off weight of the IL-76MF after improvements is nearly 200 tons. Still not on the same level. For her, it would undoubtedly be great news if she could hold such a new model in her hands. So after finishing speaking, he gave Chang Haonan a look next to him, trying to signal the latter to express his stance. ?However, Chang Haonan kept his head down and didn''t seem to notice Zhou Rong''s little movements. "I think it still depends on how much the other party wants. We have launched a lot of projects in the aviation field in the past two years, including Project 10, Project 11, third-generation engines, and new medium-sized early warning aircraft... Although the current funding is lower than In the past, we had much more money, but we couldnt afford to spend so much money ??The director of the Finance Department is almost turning green. Recently, he just feels that people all over the world are asking him for funds, but the Finance Department is not a banknote printing factory, so it really can''t come up with that much money. What he was talking about just now was only about aviation. As October 1999 approaches, the Army project, which has never had a say in funding in the past, has become much tougher than before. Not to mention that there is a big money-burning Navy, which is just building The new generation of frigates selected after Operation Embankment was a huge sum of money that was unimaginable in the past. So, although it is said euphemistically, in reality it still means mostly opposition. After all, everyone knows the situation of Ermao. When looking for a partner, you must be extremely short of money, and the asking price obviously cannot be too low. Soon, the conference room was divided into two distinct groups. Although they did not quarrel, they were at war with each other. (End of this chapter) Chapter 464 Lets poach people from Ermao. Chapter 464 Lets poach people from Ermao ?Chang Haonans feelings about the model An70 are generally quite complicated. ?There is no doubt that the Yun 8 platform, even after he and Liang Shaoxiu''s magic modifications, is still too weak to make any improvements. As long as the issue of flight safety is solved, it will basically be over. The voyage, especially the voyage under heavy load, cannot be saved. Not to mention the Y-8, which is developed based on a passenger and cargo aircraft like the An-10, even the C130, which has been the benchmark for tactical transport aircraft for nearly half a century, will quickly fall behind after entering the 21st century. ?Although it can be used by pinching the nose, it cannot meet the performance pursuit of tactical transport aircraft by the future army. No matter how rich a country is, it is necessary to live a careful life. In fact, the Il-76''s requirements for take-off and landing conditions are almost the same as those of its predecessor An-12, which is the prototype of the Y-8. As for the C17, although its maximum takeoff weight and carrying capacity are much higher than those of the IL-76, it still maintains considerable site adaptability and can take off and land on higher-level non-paved runways. Under such circumstances, the weight capacity may be affected. Even the Soviet Army has seriously considered the crazy idea of ??completely abandoning the fundamentalist tactical transport aircraft and directly using the Il-76 to match the higher-end An-22. ?However, even the United States and the Soviet Union at the peak of the Cold War could not bear the high cost and waste of life caused by having strategic transport aircraft perform chores. In the end, they continued to use the An-12 and C130 honestly. On the other hand, with the hindsight of a reborn person, the future "cross-border tactical transport aircraft" with a volume of more than 100 tons can actually have different positioning for different users. For large countries, it can be used as a lower-grade tactical aircraft, while for some smaller second-tier countries, it can be used as the main force, paired with lower-grade twin-engine light transport aircraft. The A400M, which Europeans are currently arguing about, will be positioned like this in the future. ?But then again, with the hindsight of a reborn person, due to the policy background of Ermao''s side, neither Madasic nor Antonov are good partners. ?Especially for long-term projects such as large aircraft, whose development cycle is bound to be counted in years, there are too many unstable factors at the non-technical level in the middle. ?The money spent is still a small thing, but if it delays the progress of project development, it will be a big problem. ??While Chang Haonan was struggling, the two sides fighting in the venue also fell into a confrontation. Overall, the side that opposes, or at least does not support, this cooperation has a slight upper hand, but it cannot completely overwhelm the other side. Their main concern is that the investment is too large and the cycle is too long, and the Y8 that has just been modified is not unusable. At present, the construction of the military equipment system in the new era is in full swing. The next generation of main battle equipment for the three services and one independent service has not yet been When it comes to landing, we must give priority to getting combat equipment first. The reasons for the supporters are also very good. Although our country''s aviation industry has developed rapidly recently, it is still completely blank in the field of more than 100 tons. At present, the R&D forces of various factories are already in an overloaded working state. In the short term, It is impossible to have anyone available to tackle this kind of project within the time frame. Transport aircraft are indeed not considered main battle equipment, but considering that the People''s Liberation Army has a very clear cross-sea combat goal, the huge territory and complex traffic conditions also determine that roads and railways cannot fully cope with all situations, so people who do not worry about the long-term must have short-term worries. Now that the opportunity is in front of me, there is no reason to let it go. ?However, even if a penny can stump a hero, the voice of the supporters is still smaller after all. Therefore, Zhou Rong, who advocated for the agreement, once again turned her attention to Chang Haonan. The opposition party also looked at him nervously, who had been silent. ?After being silent for a long time, Chang Haonan finally took advantage of an opportunity to express his opinion: I think we should be more cautious about the An-70 project... Then, the whole venue fell silent. Its not that he can really make the final decision, but almost no one expected that he would stand on the opposing side. After all, judging from past experience, Chang Haonans performance has always been an extremely radical technical school. Especially this year, his layout of the civil aviation industry seems to have deepened this impression. ? And even from a profit perspective, Chang Haonan, who was born in the aviation industry system, has no reason to give up such a big job. For a moment, no one knew what to say now. ?However, Chang Haonan only paused briefly and continued to explain: Our military does have a large demand for tactical airlift. From the perspective of technology and equipment system, a tactical transport aircraft that is more advanced than the Y-8 is obviously valuable. "I have two main concerns about An70. One is that after the alliance disintegrated, Kiev did not maintain a stable situation. The penetration of Western forces was very serious. It is difficult for me to believe that the two sides can maintain a deep relationship for several years. Technical cooperation." This judgment was indeed a bit early in the late 1990s. I havent felt this in recent years... ?As expected, someone next to me muttered. Chang Haonan said in his heart that you will feel it after another year or two. However, it was obviously impossible to explain the reason for using the future as a reference, so he jumped directly to the second point just mentioned: "Also, our main strategic transport aircraft in the near future is the lengthened and heavier Il-76MF. In the future, it may be a 200-ton transport aircraft developed by ourselves. The take-off weight of the An-70 is also 140 tons. Whether it is for our military, It is still a bit too big for potential foreign customers in the future. A model with a take-off weight of 110 tons and a maximum load of about 30 tons will be more in line with the positioning. " But even if this is the case, we probably wont have the extra strength to develop new models in a short period of time, and after all, Comrade Haonan, you are too busy to do everything yourself, right? Zhou Rong still wanted to struggle. Director Zhou, dont worry, I didnt say anything or do nothing Of course, Chang Haonan does not want to stand on the other side completely: For Ermao, we should focus on obtaining the legacy left when the alliance disintegrated, so that the cycle is shorter, and we dont have to worry about the other party suddenly changing his mind or other problems in the middle of the cooperation. Soviet legacy The other person sitting opposite was stunned: Although An70 has been developed since the 1980s, it was mainly completed after the alliance disintegrated. In fact, it is not considered a legacy..." Im not talking about An 70, ?Chang Haonan waved his hands and at the same time made a tactical retreat: The most precious legacy left by Big Brother is actually the technical personnel scattered in various countries. We can definitely find a way to poach these people! (End of this chapter) Chapter 465 Friendship Project! Chapter 465 Friendship Plan! You mean, we directly cooperate with the businessman in Kiev and employ open and legal methods to employ researchers there who are worried about their livelihood? Huai Guomo, who had been silent before, his eyes lit up and he was obviously interested: This idea has never been tried in the past... When he said that he had not tried it, of course he meant that he had not tried the method proposed by Chang Haonan, not that he had not tried to recruit people from there. In fact, when the alliance first disintegrated in 1991, some people realized the valuable value of those Soviet experts and proposed a systematic talent introduction plan. However, first of all, at that time, everyone had no experience in doing this kind of thing and did not have a clear goal. They could only try their luck by casting a wide net. Secondly, the situation on China''s own side in the early 1990s was not very attractive. The main reason is that there are not that many projects and companies in China that can support this group of people, so although the efforts are in the right direction, the final implementation is relatively average. By 1997, the best time window had actually been missed. At least the possibility of poaching people from Da Mao is close to zero - those who want to leave have already gone to the United States or Germany, and the remaining ones who chose to stay in the early 1990s are basically unlikely to change their minds now. . Not only that, Da Mao himself has begun to use the habits and similar cultures of the past few decades to poach people from other CIS countries. Fortunately, the current situation in China is much better than in the early 1990s or in the previous life. At least it can be guaranteed that no matter what kind of talents are brought back, there will be places for others to use them. At best, its just not a complete match. ?For example, those who built aircraft carriers in the past may now have to build frigates for several years first... But its better than continuing to stay with Er Mao. Sure enough, Zhang Dongxu also talked about what happened in the early 1990s: "If this is the case, we still need to learn from previous lessons. We have tried to do this a few years ago, but on the one hand, our country was not attractive at that time. On the other hand... In fact, it also happened during the operation. Had some problems..." Everyone''s attention was immediately attracted to him. Chang Haonan didnt know too many details about the introduction that year. He only read a few words from the unit files of several scientific research institutes or local chronicles before his rebirth. He only knew that the Ermao experts who later lived and worked in China on a large scale were basically the second batch of talents introduced after entering the new century. But what happened in the intervening years, the relevant records are basically blank. As for the people off the court, most of them were young cadres at the first level at that time. The divisional level is indeed not low in the outside world, but because ministries and commissions have almost no departments, they are actually the heads of small departments at the lowest level, and their scope of knowledge is quite limited. ?Although the level has increased later, no one can go to the archives to look through piles of old papers from several years ago, so no one has the opportunity to come into contact with these contents. ?Now that Zhang Dongxu said this, everyone is a little curious about the "Secret History of xx". No one can refuse such things as gossip. Even including Ding Gaoheng. ??He has been the director of the Commission of Science, Technology and Industry for National Defense for ten years. Although he holds a military rank, he is actually not very clear about things outside his unit. "I happened to be working in the Ministry of Electronics Industry at that time, and was responsible for handling a group of Belarusian experts coming to China, about 20 people. At that time, in order to reduce the sensitivity, the first batch of people introduced were not involved in the military industry field, so this Not many people in the Science and Technology Commission may know about it. Zhang Dongxus experience is also quite strange. He once served as the general manager of the Electronic Industry Corporation, and he was on the same level as Ding Gaoheng. However, because the Ministry of Electronic Industry had not been abolished at this time, the functions and positioning of the two units completely overlapped. Later, the Electronic Industry The Industrial Corporation was downgraded and finally delisted altogether. As the general manager, he really had no place to go, so he was transferred to the Science and Technology Commission as deputy director. It is also for this reason that he often deliberately lowers his sense of presence and rarely speaks actively except for leadership team meetings. However, this time he rarely spoke: "There may have been more than a hundred people who came to China from 1992 to 1993, but in the end basically none stayed, including those I contacted. Later I concluded that one is that the cultural differences between the two sides are still relatively large. In a short period of time, After all, coming to China to work and living in China for a long time are two different things. Many people can accept it at first, but it will be difficult for them to adapt after a long time. But thats not the most important thing. At this point, Zhang Dongxu adjusted his sitting posture and his tone became serious: "There are some people within us who are very unreliable in their thinking. They can only praise the West in three sentences. They talk about the United States and Europe in everything. It is a joke. If people believe this, why not go to the United States or Europe? Why choose us, China? "There are also some people who think that others cannot understand Chinese, so they publicly say things that damage relationships, or they just randomly translate what others say. As a result, there are two old experts in the family who have been to China when they were young and have learned some Chinese. , and sent the report directly to me..." Chang Haonan smiled helplessly. Although it was the first time for him to hear these contents, judging from the current situation in the 1990s, it did not seem to be very surprising... After a brief pause, Zhang Dongxu continued: "There is another problem. It is different from the past few years. Americans and Europeans have penetrated the CIS countries very hard. If we recruit people again, especially if we still recruit people in an open way, we will have to Consider whether the other party may work for Western intelligence agencies, thus threatening our national defense security? As expected of someone who has had relevant experience, every point he puts forward is tricky but very realistic. Well...what Lao Zhang said, we really need to think about these things in advance..." Ding Gaoheng, who was sitting in the first place, also frowned slightly. Chang Haonan briefly recalled the subsequent successful experience and found that it seemed to be designed to solve several problems raised by Zhang Dongxu. Just copy the wisdom of later generations. Actually, as long as the scale increases, this matter will not be difficult to solve. ?He looked at the people in front of him and said: "You can choose several places to build a group of communities mainly for these people to live in. In this way, there will be many fewer translators and other staff needed, and the screening process can be stricter. For those who come to China, , being surrounded by mostly familiar people makes it easier to adapt to the environment. "For the same reason, the pressure on comrades in the security department will be much less, and we can''t just let them get in touch with the core things right away. We must do it step by step, starting with less sensitive peripheral projects... " "In addition, we don''t have to worry about preparing extra things that foreigners are used to. In places like this, there will naturally be smart people who provide living facilities that meet their needs. After all, we are in the era of market economy, and we also We need to be more flexible and not let the organization take over everything..." ?This method can be said to have been proven for a long time in the previous life, and there have been basically no major problems. It is naturally flawless. At the beginning, everyone just listened casually, but within a few seconds, everyone began to think seriously. For a while, no one could find anything wrong with it. At the end of the day, the senior people from the Department of International Cooperation and the Department of Personnel and Education who came to the meeting even started taking notes directly. ? Ding Gaoheng and the three deputy directors sitting nearby looked at each other, and they all saw the same answer in each other''s eyes. Worth a try. We can apply for this method. After passing it, we will conduct a batch of pilot projects first. Lets take small steps and run quickly to see the effect. Ding Gaoheng said this, which was obviously the final word: By the way, you can give me a nicer name, lets call it Friendship Project! (End of this chapter) Chapter 466 Hard core ruthless person Chapter 466: Hard-core ruthless person Once the general direction is set, all that remains is the details. Are we entrusting that businessman to register a company directly in Ermao, specifically responsible for selecting and transporting personnel to the country? The director of the International Cooperation Department was taking notes quickly and raised his head to confirm with Ding Gaoheng. Although they have a name like the International Cooperation Department, they actually do not directly interface with foreign countries. Instead, they are mainly responsible for the management of military export contracts and the approval of military trade licenses. Having said that, we can only catch the ducks first. After all, other units are even less relevant. This needs to be communicated to the other party, but no matter what, the company can be registered in his name and the profits generated can also be handed over to him, but the staff must be sent by us, at least part of it must be sent by us. " Ding Gaoheng replied: "In addition, don''t register locally. There are too many restrictions. Now Ermao is completely open to foreign investment. We can register with a third party, such as the Cayman Islands, or we should register in Hong Kong Island no matter what. , This way it will be relatively hidden. Although it is said to be hidden, in fact, this situation is basically an open card, and the main function is to maintain dignity between each other. ? Even Americans used to recruit people through third parties in Europe. It''s one thing for everyone to know it, but it''s another thing not to act. After answering, Ding Gaoheng paused and continued to add: "One more thing, with the resources we can currently devote to it, we definitely cannot refuse everyone who comes like the Americans. In addition, this is a pilot project. If the research directions of the introduced objects are too complex, it will not be conducive to people like Xiao Chang. Management as mentioned just now, so we still need to determine a key direction first. In this regard, several system engineering departments will submit a report after they return, and we will decide later." The meeting is dismissed! Zhou Rong wanted to talk to Chang Haonan, but before she could get up, Ding Gaoheng and Huai Guomo came to the latter''s side. Of course there is no chance again. Xiao Chang, when I called you yesterday, were you in Shengjing handling the Taihang project? The three of them walked together and left the conference room one after another. Actually, I mainly went to Factory 112 to see the first two domestically produced J-11s coming off the production line. I went to Factory 606 by the way. There is absolutely no need for Chang Haonan to hide such a trivial matter: The progress in Taihang seems to be okay now. I can basically deal with most problems here in the capital. For the rest... an occasional trip to Shengjing is enough. Although it is the first time for Xiao Chang to be the chief designer, I feel that he is more skilled than other veterans... I think Xiao Chang should be asked to publish a teaching material in the future, called "How to Become a Chief Designer". Huai Guomo, who was walking on the other side, said half-jokingly: If the scientific researchers in our country can be as comfortable as he is in doing projects, then a lot of unnecessary losses can be avoided..." Yes, in the years when I was studying frontline work alone, I knew almost twenty comrades who died of illness or were forced to leave their jobs due to overwork Ding Gaoheng sighed slightly. As an important participant in the two bombs and one satellite, he naturally felt sympathy for what Huai Guomo said: "However, this kind of thing still depends on your brain. I''m afraid just reading books is not very useful. When I followed Qian Lao, I felt that even if he did ten things at a time, he was more organized than me when doing one thing. And It''s still fast, but I can''t accept it..." The content of the chat between the two gradually switched to their own past experiences. Chang Haonan, who couldn''t say anything for a while, was happy to listen to some short stories that he couldn''t read in books in his previous life. It wasnt until Ding Gaohengs office that we returned to the topic: "By the way, Xiao Chang, for the die forging press project you mentioned last time, the Second System Engineering Department has already freed up staff and funds, but there is really no extra space at Huaishuling, and the conditions are Its just average...???Chang Haonan shook his head and said it didnt matter: "It doesn''t matter. Comrade Yan Yongnian is at Qinghua University, and I am at Beijing Airlines. The hardware conditions for preliminary research are there. When equipment testing is really needed, we will definitely go to Jiangcheng, so as long as the funds and staff can To solve it, it doesnt matter if you have an independent office location. And by the end of this year, the office space of our Torch Group will be almost free, and it will be more convenient to use the space there. Why is the Science and Technology Commission moving so slowly? Your company has been established for several months and you still dont have a formal office? Ding Gaoheng sorted out some scattered documents and information on his desk, and dissed the unit next door. The official office location is currently registered at the Academy of Sciences. It wont be a hassle to change it later. The main thing is that the place was previously used by a company that went bankrupt after restructuring. It is still in the liquidation stage, so we dont have to go in. Chang Haonan doesnt care. Even if the Torch Group moves to a new location, the two major supercomputers cannot move with it, so the core business personnel will actually have to stay at Beihang University and the Institute of Computing Technology. In other words, it may appear more formal when discussing business. While speaking, he saw a report in Ding Gaoheng''s hand out of the corner of his eye. ?Then he almost cursed: There is a photo on the report, and the person in the photo is something he has seen, or rather is very familiar with: Old Wu? ?His voice stopped Ding Gaohengs movements: Do you know him? Yes. Chang Haonan nodded, We are classmates. He graduated in the same year as you? Ding Gaoheng was also a little surprised. The face of the man in the photo was indeed young, but he had always subconsciously thought that he was someone who had gone wild without much schooling and had quite a lot of social experience. Although he had been addressed as "businessman" during the meeting just now, everyone knew in their hearts that they were actually a group of gangsters, but on a larger scale and with more formal procedures. ??At least it can be considered a gray industry, not a pure outlaw fanatic, and it can barely be justified to turn a blind eye. ?In the 1980s and 1990s, many people who started from scratch and eventually made a fortune were such hard-core and ruthless people. But now it seems that the other party is still a major? Yes, but he has actually been doing this for a long time, probably since his sophomore year. Chang Haonan is actually not very clear about the specific situation of Wu Yifan''s business. Even the fact that Wu Yifan is a bad guy was only discovered by chance when they met before the Chinese New Year. Then how about Ding Gaoheng stared at the report for a while, then looked up at Chang Haonan: You are responsible for contacting him? (End of this chapter) Chapter 467 Japans bearing industry feels a little uneasy Chapter 467 The Japanese bearing industry feels a little uneasy... "Not so good" ?Chang Haonan hesitated for a moment: Isnt it necessary to avoid this kind of thing? Well, even if you want to avoid suspicion, its only for immediate family members. You two are not related by blood, you are just classmates, so there is nothing to avoid. Ding Gaoheng immediately waved his hand and said there was no need to worry: "Furthermore, he is just a partner of that company. The big boss is someone else. If you are really worried, just use the name of Torch Company to negotiate with them." Director Ding, I currently have no plans to involve in cross-border labor dispatch For Chang Haonan, Torch Company, as a company whose main products are algorithms and software, would involve too much energy if the scale was too large, and it would be difficult to turn the ship around, so its flexibility is far inferior to the current studio-like experience. quantity. ?Hence, as long as he can continue to work deeply in the field of numerical computing, he has no plans to expand the scope and scale of his business. ? Judging from the experience of M50NiL steel and new bearings, it is entirely feasible to sell framework solutions and hand over specific research and development work to other companies. ? In this way, we can maintain a relatively streamlined personnel structure and prevent Torch Company from becoming a behemoth with rigid responses. Secondly, we can also work in the same direction with other companies, form synergy, and create combined punches... In short, we cannot eat and occupy everything to avoid internal fighting. I didnt ask you to do business... Ding Gaoheng said, sorting out the report in his hand and handing it to Chang Haonan: "For things like this, they are the country''s white gloves. They certainly can''t sign a contract openly. Many conditions can only be verbal guarantees, which rely heavily on the trust between the two parties. We already know each other. You are considered young and promising now. If you come forward, it will be easier to convince others..." Ohthats fine. ?Chang Haonan took the file, glanced at it and nodded. Honestly speaking, he is actually a very low-key person. But since you are pretending to be under orders, you can only reluctantly go against your true intentions... At the same time, NSK Groups office in China. ? Qing Jingbin placed several bearing samples in small plastic bags and the corresponding test reports on Haneda Shunsuke''s desk. After an on-site inspection a few days ago, he found that Jinling Motors had changed the supplier of wheel hub bearings and manual transmission bearings from NSK to Huaxia Enterprises, and then flew non-stop to another user who also reduced the order quantity, that is, Bingcheng Automobile Group investigation. ?Originally, because Bingcheng was too far away, they actually had few connections there. Qing Jingbin was even prepared for a protracted war. This time, however, the results came out faster. Perhaps because of its proximity to the market, Bingcheng Motors after-sales and maintenance departments have begun to put in new domestically produced bearings, although the new cars they sell are still equipped with NSK products. Of course, another reason is that Songhuajiang is positioned as a passenger car. Replacing parts such as wheel hub bearings only requires single product testing, and does not require complete vehicle testing like Jinling Ivecos commercial vehicles, so it will save a lot of money. Much time. In short, he did not use any of the words he had prepared. He just spent some money to buy several new wheel bearings in batches, and then took them back as samples for analysis and testing. The test report was placed in front of Shunsuke Haneda. ?For a moment, Shunsuke Haneda thought there was something wrong with his language module, so he misread the contents of the inspection report Because the test results clearly show that the performance of these samples bought from Bingcheng is even better than the products produced by NSK. Qingjun, does this report mean that the performance of these bearings is better than those produced by our company? After confirming the contents of the report again and again, Haneda, who still couldnt believe it, asked Qing Jingbin again. "Yes, we have analyzed the entire bearing, as well as the inner and outer rings, **** and cages. The results show that the life expectancy of the bearing is 150% of that of our company''s products of the same model. The stiffness and strength are basically the same, and the drag moment Then its only 71%, and the consistency is very high. Qing Jingbin nodded and replied in a solemn tone: In general...it is better than our products in all aspects. In fact, it was difficult for him to believe such a result at first. You must know that the bearings produced by Huaxia before did not even reach one-fifth of the life of NSK products, and because the drag torque is larger and more irregular, it will even lead to increased fuel consumption and reduced driving stability of the vehicle. There is no competition at all. force. However, the performance of the several bearings I bought this time is simply reborn. "Is that what you mentioned last time...produced by Northeast Special Steel?" ?Heda Shunsuke picked up one of the bags containing bearing samples from the table, put it in front of his eyes and looked at it carefully, as if he could see the difference with his naked eyes. Well... I went there to find out on the spot. The manufacturer of these bearings is the local Bingcheng Bearing Group in Bingcheng. Northeast Special Steel should have provided raw materials or key components such as balls. What about the price? How about the price? ? Being able to ask such a question obviously shows that Shunsuke Haneda has lost his mind. ??If the price is higher than imported bearings, then Jinling Motors and Bingcheng Motors may not consider switching to domestic models from the beginning... Sure enough, Qing Jingbin said that it is exactly the same as the previous NSK model, priced at 200 yuan each, and buying 4 at a time costs 700 yuan. ?This price made Haneda Shunsuke want to express his guilt when he heard it. ? Their bearings are produced and shipped to China at a cost of about 30 yuan each. If they are sold to an OEM, they earn 200% or 100 yuan. ? And the other party doesnt even need to change the packaging, and its 100% profit again... ?No wonder they all want to build cars... Having said that, since the other partys quotation is the same, it means that the supply costs of both parties are at least basically the same. Maybe the domestically produced ones will be cheaper. Otherwise, from the perspective of car companies, if they can only improve performance without reducing costs, there is not much incentive to replace a new component. At least there is no need to be in such a hurry. Just wait until next year when the model is revised, and it can be regarded as an upgrade. After all, based on further calculations based on the data in the test report, after replacing the bearings, the car''s fuel consumption can be reduced by about 0.2L per 100 kilometers... Of course, what NSK supplies to Bingcheng Motors is not the highest-end model, but for mechanical products, you get what you pay for, two cents for a dime, and three cents for a dollar. If you want to ensure performance by improving the product level If so, the price difference is definitely more than a few times. In other words, there is nothing we can do for the time being... Okay, its okay, you can go down first. The upset Shunsuke Haneda waved his hand towards Qing Jingbin, indicating that he could leave. ?However, the latter did not turn around immediately, but asked tentatively: Mr. Haneda, how do you think we should deal with this matter? Hearing this question, Haneda Shunsuke glared at his subordinate, who was usually very discerning ?If he had a way to deal with it, he would have come up with it long ago. ?However, at this time, of course, it was impossible for him to admit this publicly, so he had to find a random excuse to explain it: Of course we want the company to speed up the construction of factories and reduce the cost of bearings. The worst case scenario is nothing more than a price war. ?This sentence is half true and half false. The progress of the company''s factory construction does not really count, but price wars are indeed one of his methods to keep the bottom line. When competing with SKF for the market, this method has been tried and tested repeatedly. Of course, SKFs biggest advantage is that German car companies entered Chinas joint ventures early, which laid a solid foundation for European bearing companies. However, the response of Japanese car companies was much slower... Minister Haneda, a price war with Chinese companies is definitely not worth the loss for us... Qing Jingbin has already called Haneda Shunsuke a stupid pig in his heart, but he still can''t show it on his face: "Our NSK is inherently lower than SKF in terms of positioning and cost. Of course it doesn''t matter if we have a price war with them, but Huaxia Bearing has always been synonymous with the lowest-end products. If we really compete with Bingcheng Bearing on price , that would be equivalent to directly destroying NSKs brand. Even if we win, we will only injure the enemy 800 and lose 1,000 to ourselves..." Hearing this analysis, Haneda frowned secretly: "Of course I know that a price war is not a good idea, but the quality of the other party''s bearings is already better, and it is impossible for the head office to update the products in a short time. Without a price war, the market performance will be affected sooner or later. This is absolutely unacceptable to you and me." Or, Mr. Qing, do you have a better idea? (End of this chapter) Chapter 468 media offensive Chapter 468 Media Offensive Although Haneda Shunsuke and Qing Jingbin do not think highly of each other in their hearts, it is their common interest to upgrade the NSK Group''s China office to the China headquarters. If at this juncture, the revenue level of the Chinese market is not as expected , then even if the China headquarters is established, it is possible that a new head of the headquarters will be parachuted in for management. By then, the good days of the two of them covering the sky with one hand will come to an end. Lets not talk about the direct benefits brought by promotion and salary increase. In recent years, Shunsuke Haneda smuggled bearings from Japan, removed the packaging, and then sold them through private relations through Qing Jingbin. Bringing them nearly six figures more money. You must know that these bearings do not go to the company''s account, so whatever you make goes into your own pocket. Even for Haneda Shunsuke, who came from Japan, tens of thousands of yuan is a lot of extra income, let alone Qing Jingbin, who is Chinese. ?These days, the monthly salary of most people is only a few hundred yuan. Even in Shanghai, a monthly income of tens of thousands is definitely superior to others. But if a new manager comes from above, the best result is that there will be one more person to share the money. And the bulk of it must be taken away. Even if it doesn''t work well, this financial path may be cut off. So, no matter what, the market share and profits of NSK bearings in China must be guaranteed. Mr. Haneda, in fact, as long as the performance of bearings is not too bad, users cannot detect them. Qing Jingbin glanced at a chair next to him. He had actually been standing there for a while, but Haneda didn''t say anything, so he couldn''t help but sit down: "The bearing produced by Bingcheng does have better performance than ours, but for car companies, as long as the warranty period is out, long life is not an advantage at all. It is a good thing if it breaks down as soon as possible. There is also fuel consumption, 0.2 L per 100 kilometers is indeed very impressive in our industry, but for customers who actually use cars, climate, road conditions, and footwork will all affect the actual fuel consumption. In fact, the one-digit difference after the decimal point is not felt at all. , as for stiffness and strength, the difference is within 10%. NSK bearings cannot withstand the same external impact, and Bingcheng''s bearings can basically not withstand it..." So? Lets get to the point. ?Heda Shunsuke felt that he hated this feeling, but now he could only continue to ask patiently. "We can spend some money to buy a few pages in some influential media to criticize Bingcheng Motors and Jinling Motors for using domestic parts instead of imported parts. If that doesn''t work, we can fake a few cases because they use Huaxia Bearings. As for the accidents caused, few people would believe that the bearings produced in China are of better quality than ours. Let us clear out their competitors, such as Changan in the mini car field and Ford in the commercial vehicle field. By then, these two The sales of car companies are bound to be affected..." By the way, Mr. Qing, please sit down first and say... It was only then that Haneda across from him finally remembered to ask Qing Jingbin to sit down. Finally able to take a rest, the latter pulled the chair next to him over, sat upright, and then continued: "For us, the top priority is to stop losses and not let more car companies give up our products. Such a combination of punches can be regarded as a deterrent to other manufacturers, so that they dare not replace our products casually. At the same time, it can also cultivate consumer awareness..." In this year when Internet penetration is still quite low, paper newspapers and television are almost the only channels through which most people can obtain information. Compared with China, which was still quite young at this time, the Japanese are using public opinion to build momentum. The foundation in this aspect is obviously much deeper. Furthermore, due to some special reasons, they also have a closer relationship with some influential Chinese media. At this time in 1997, soft articles such as "Competition in Summer Camp" were already flying all over the sky. It''s just that after Japanese products entered the Chinese market, they were almost indiscriminately slaughtered, so Japanese companies are not very aware of this aspect, especially Shunsuke Haneda, who really climbed up from the bottom of the sales staff. Such people often have good courage and courage. , but the knowledge is average. On the contrary, Qing Jingbin, as a Chinese, understands the power of these propagandas better. When he was in school, he knew that the story about the summer camp must be false What primary school student can walk 50 kilometers with heavy weight? ??But in Qing Jingbins view, the fact that so many people believed this kind of fake article even after it was published, doesnt it prove that Chinese people are easy to deceive? ?His plan just now even said that he would bribe several media outlets at the same time, which was extremely stable. "this" After hearing Qing Jingbins analysis, Haneda Shunsuke fell into hesitation. ?Of course he knew that what the other party said was reasonable. When the quality gap itself is not too big, the brand effect can fully support higher prices and higher sales volume. But the premise is that the quality gap is really not too big... There is one thing that only Shunsuke Haneda, the head of NSKs China office, knows in China. That is, when NSK was in a price war with SKF several years ago, in order to reduce costs and ensure profits, it secretly lowered the production standards of mass-produced models, but the content of the factory inspection report was still the same as before. In other words, the actual performance of NSK bearings is actually much worse than what everyone thought, including Qing Jingbin, who only read the report. ?In the past, their products were always between high-end European products and ultra-low-end Chinese products. Even if the performance was lower, it would not change this situation, so there were no major incidents in the past few years. But now, the trouble is a bit big... Take minicars as an example. As a Japanese who has lived in China for several years, Shunsuke Haneda knows very well that most of the people who buy this kind of cars are mixed with passengers and cargo, and most of them are used in a state of severe overloading and lack of maintenance. In this case, if the wheel hub bearing originally guaranteed for 50,000 kilometers breaks down even after 10,000 kilometers, the user has nothing to say, because when the car is repaired, it can be seen at a glance that the car has been overloaded for a long time, and the warranty will definitely be denied. of. ??But after replacing the new bearings, since the overall strength and material surface hardness far exceed the NSK model after the standard was lowered, even in the extreme state, it may be able to run for 50,000 kilometers... This gap is too big. Even if the temporary defeat can be saved by buying the media, within a year, major OEMs will find that something is wrong. ?But it was impossible for Shunsuke Haneda to talk to Qing Jingbin about this kind of thing, so he could only brainstorm quickly to find a solution on his own. Mr. Haneda, what do you think...of this method? Qing Jingbin, who had been waiting for a long time for no reply, couldn''t help but feel a little anxious. He really didnt understand what the other party was hesitating about. After a long time, Haneda Shunsuke raised his head again: "Qingjun, I agree with your approach in principle, but such a major matter still needs to be reported to the group headquarters for decision. Therefore, it may take a few days to determine what to do specifically." Hearing this, Qing Jingbin finally breathed a sigh of relief. ??In his opinion, as long as he can hit this combination of punches, it will definitely not be a problem at least until NSK''s Huaxia factory is completed. Isnt this time enough to develop a new generation of products with better performance? In the end, Qing Jingbin still feels that even if Bingcheng Bearing and Northeast Special Steel obtained the technology from nowhere, they would not have the ability to upgrade in the future. As long as NSK reinvests in research and development, everything will be fine. Its just that after working in a Japanese company for many years, he is still not confident about the efficiency of the Japanese: Mr. Haneda, we cant delay this matter for too long. We have long nights and many dreams... Dont worry, it will be soon. ?Heda Shunsuke''s tone was a little impatient. What he is about to tell the headquarters must not be allowed to be known to this Chinese person... (End of this chapter) Chapter 469 OEM production Chapter 469 OEM Production Actually, Shunsuke Hanedas idea is also very simple. The actions at the media level are just as Qing Jingbin said. As for products, it is impossible to raise the standards again. On the one hand, the original standards are not as good as these purchased bearing samples. On the other hand, their current costs are already very high. The little cost extracted on the production line is quickly consumed by the complicated administrative processes. If the standards are adjusted back to what they were a few years ago, a bearing will be shipped after it is manufactured. It will be equivalent to about 60-70 yuan in China, which will only lead to further compression of profit margins and make it even less competitive. So Shunsuke Haneda just came up with a bold idea. ??It is to find a third-party company with a relatively hidden identity, buy the finished products directly from Bingcheng Bearing, and then sell them under OEM. ??The quality of my product is exactly the same as yours. I have replaced it with the noble NSK company LOGO, and coupled with the media offensive as a combined punch, the price is only 50% higher. Isn''t it very conscientious? As a result, their profit margin for each bearing sold in China is much higher than in the past, and even compared to the real production side Bingcheng Bearing Group. Perfect. Later that day, after Haneda Shunsuke expressed his thoughts to his direct superior at the headquarters, Oda Tatsuki, even he did not expect that the other party would say it almost without thinking... agreed. Mr. Odamoto, this Even as a close confidant of Oda Tatsumi, Haneda was a little confused by the other party''s reaction. ?He thought about it. When he first saw the test report, his first reaction was that he didn''t believe it at all. How can Chinese people make better bearings than NSK? ? Even if they lower the production standards, it should be a dimensionality reduction attack. Oda Tatsuki accepted the report almost immediately... ?He almost blurted out and wanted to ask the other party, have you never thought about the authenticity of the content? Fortunately, I held it in in the end. Haneda-kun, do you want to ask why I believed this report so quickly? I dont know if it was Hanedas illusion. He found that Oda Tatsukis mood on the phone sounded even a little excited, but he nodded immediately: Yes, Minister Odamoto. "Because a few days ago, the marketing department on Chunaka Island asked us if we had put cheap low-end bearings in China to seize the market. Because they found that the sales data of bearing parts were abnormal, and several companies reduced or even stopped selling bearings. Orders for the fourth quarter of this year or next year have been cancelled. As a senior executive at the head office level, Odas access to information may not be as direct as Shunsuke Hanedas in China, but he is definitely not a stubborn person living in an information cocoon: So, I speculated at that time that maybe the Chinese people had come up with some kind of substitute. But, sir, how could the Chinese suddenly..." In fact, even now, Haneda still finds it unbelievable. The development of the manufacturing industry must be based on some truth, right? Who knows, maybe they bought some technology from the Russians or some other country. Oda on the other end of the phone still had a relaxed tone, and there was no sense of urgency: "In short, it''s not important to me. Our bearings are mainly supplied to domestic companies and exported to North America, South Korea and Southeast Asia. The Chinese will not be able to threaten these places in a short time. What''s more, the question you proposed method, then there is nothing to worry about. "in addition" ?Oda hesitated for a moment, but continued after a moment: "The timing of this incident is just right. It can be used to attack those in the Inagaki faction. If it is done well, it is not impossible for me to take over the task force next year..." ?Heda Shunsuke suddenly understood. Inagaki Eiichi, the leader of the Inagaki faction, is the head of the group responsible for product development and production. He has always been at odds with Oda, who is in charge of marketing. However, NSK''s main business is in machinery manufacturing after all, especially in the enterprise-oriented field such as bearings, so later The author has always been suppressed. ??This time is just the right time for a counterattack. ? And if Oda can be promoted to a full-time job, Haneda, his confidant, will naturally have a bright future. So he couldnt wait to ask: Well, sir, regarding the matter of building a factory in China... should you consider shelving it for now? "no need." ?Oda immediately rejected the proposal: "First of all, we can''t force the people on Inagaki''s side to a dead end. If he really risked his life and perished with the entire group, it wouldn''t be easy to solve. Secondly, if something happens in the future, we can also logically remove the bearing. The problem of reduced quality is put on the Chinese people. ? ?The internal fighting between Oda and Inagaki is a bit like the Cold War. Both sides have enough inside information to make NSK explode, but like nuclear weapons, no one is willing to use them unless they go to the last step. Who wants to die if he can live? The bearings produced by the Huaxia factory... Make some differences that are not reflected in the contract, and sell them at a discount as low-end products Okay, Ill do it right away ?At this time, Chang Haonan didnt know that his saucy operations had already begun to change the world, at least the pattern of East Asias manufacturing industry. The new equipment he had been waiting for for a long time finally arrived. Although the name of the new institution established by Beijing Airlines is "Compressor Research Center", it is just selling dog meat on sheep''s head. In fact, according to Tang Lintian''s ambition, this should become a full-field research institution for aero-engines. So when he first formulated the plan, he not only limited his attention to experimental compressors. There is also a lot of procurement of experimental equipment related to combustion chambers and turbines. Including a non-contact temperature measuring platform that Chang Haonan urgently needs right now. Of course, it is not just as simple as a thermometer, but also includes a flame tube for combustion heating, and a compressor that can deliver sufficient air flow, so that the working conditions of the combustion chamber or turbine can be simulated during engine operation. Liu Yongquan stood not far from Chang Haonan, looking down at the operating instructions in front of him, giving out instructions one after another, while the latter was climbing up and down to adjust the equipment. Originally, given Chang Haonan''s current status, this kind of thing could be completed by a specialized equipment operator, but this aerospace thermometer was customized by him from the 410 Factory based on similar equipment he had seen in later generations. It was debugged for the first time. I really dont trust anyone else to do it. Mr. Chang, are you planning to switch to the impingement cooling method on our new engine? ??While the equipment computer started the self-test, Liu Yongquan raised his head and asked Chang Haonan. ?Although he is mainly responsible for the design of the compressor part, because he follows Chang Haonan all day long, he is inevitably exposed to several other aspects of work. ? Looking at the test data on the table next to him, Liu Yongquan really couldnt think of any other way to increase the overall cooling efficiency to 0.7 or above. You must know that even on CFM56 or AL31F turbine blades, this number is only about 0.4-0.5. It is true that higher cooling efficiency can reduce the requirements for turbine materials, or increase the service life when the materials are the same, but impingement cooling itself is not friendly to jet engines that require stable airflow, and large-area impingement cooling requires jets seams will also cause unnecessary flow loss. "of course not" ?Chang Haonan shook his head and started to set the initial test parameters on the computer: I have a more imaginative way! (End of this chapter) Chapter 470 Youre right, MIT got it wrong Chapter 470 You are right, MIT is wrong More imaginative? ?Liu Yongquan, holding the operating document in his hand, was stunned. "Ah, I have read an MIT paper before and found that after adjusting the arrangement of cooling holes into a multi-layer array, although the effectiveness of each row of jets rapidly decays behind the air film holes, due to the difference between the front row of cooling air and With the mixing of the mainstream, the ambient temperature of the air film holes in the rear row is reduced, thereby gradually increasing the effectiveness along the flow direction and achieving better wall cooling effect. " ?Chang Haonan stopped what he was doing and turned back to look at Liu Yongquan: You must have seen it too, right? At this moment, the latter suddenly felt a chill on the back of his neck, and he felt like he was back to the time when he was just a graduate student ten years ago and was called over for a group meeting. ???PTSD is a crime. Obviously Chang Haonan is much younger than him, but this tone, this look, this question... ??It''s almost like a mentor who looks down on new graduate students. I...Ive seen it. Liu Yongquan wiped the non-existent sweat on Zhengliangs head, and his mind was rapidly thinking about whether he had missed any important points before. But after thinking about it for a long time, he finally didnt think of it, so he could only continue nervously: "But I remember that the data in that article was actually very problematic. Although the author used clever plotting and processing methods to cover up some of it, the problem was clearly visible. He used a very small size in his study. The scaled-down version of the turbine blades does not take into account the amplification effect, but it is obvious from the data trend that if the blades are enlarged to the level of a normal aircraft turbofan engine, then the cooling effect at the rear end of the blades should be less Im optimistic, and besides and if this research is really meaningful, Im afraid too "Um" Chang Haonan actually heard Liu Yongquan''s thoughts completely, but because he was still preoccupied with debugging the equipment, he couldn''t organize a complete sentence in his mind. It happened that what he was going to say later was more complicated, so he had to hum first. Show that you heard it. ?However, this reaction made Liu Yongquan break out in a cold sweat, and the feeling of dj vu became even stronger when he was back in graduate school. "Um?" Chang Haonan finally finished the work at hand. He wiped the sweat from his palms on his lab coat. Then he turned around and saw Liu Yongquan, who looked like a student being scolded: You want to say that if that research is really meaningful, it wouldnt be so easy to publish, right? ? ? In fact, all countries are similar when it comes to keeping the most critical core technical details confidential. ?Taking the matter of air film hole cooling as an example, since the related concept was proposed in the late 1970s, for nearly 20 years, the entire industry has been unable to find a single valuable research article. Not to mention the review. This led to the fact that when the Turbojet 14 was developed that year, the Chinese aviation development researchers, who had to use film cooling due to the excessively high temperature in front of the turbine, could only collect some scraps from some Russian phrases. In the end, although the Turbojet was A 14-inch turbine was built, but the cooling effect was always somewhat unsatisfactory. Fortunately, the second-generation domestic nickel-based high-temperature alloy was later used, which ensured the most basic reliability and service life at a certain cost. Otherwise, Chang Haonan would have had to modify the turbine in addition to the compressor. . That cannot be completed in a few months. "yes." Hearing that Chang Haonans rhetorical question was similar to his own, Liu Yongquan finally relaxed a little: "Although the MIT article did make some breakthroughs in theory, it is still far away from practical application. Judging from some reports, the main direction of foreign research now should still be the impact cooling of slot jets and formed hole jets. The combination of air film cooling may be the reason why this article was finally released. Thats not right. ?Chang Haonan waved his hand directly, then walked to the side and took off his lab coat. "This...this...Mr. Chang, what''s wrong with my idea...?" Liu Yongquan''s heart was hanging again. No, Liu Gong, your idea is fine. Chang Haonan said as he took out an English material from the bag next to him, which was obviously the paper the two of them just talked about. The number of papers studying blade cooling these days is extremely rare, so any one will be studied carefully in China. Since online databases are not yet popular, various research institutions even have dedicated data clerks responsible for collecting content that is actually public. The paper in his hand was brought over by the data clerk of the Taihang project team a few days ago. In fact, Chang Haonan certainly does not need the inspiration from this article, but suddenly from fluid mechanics research to gas-heat coupling issues, he still has to find an explanation. He handed the paper to Liu Yongquan: Its MIT who have the wrong idea. "ah?" Liu Yongquan, who had just turned the paper to the second page, was immediately stunned. Let alone the late 1990s, even more than 20 years later, MIT still has a bit of sanctity in science and engineering disciplines. Even though Liu Yongquan thinks that he is no longer superstitious about foreign authorities, he just said that the research in this paper is biased towards the gas-heat coupling theory and has little practical significance for engineering applications. "Now foreign countries are pinning their hopes on the slot jet, which is nothing more than the weak three-dimensional flow characteristics of the slot jet. The assumptions between the front and rear jets basically meet the Sellers superposition model, so the prediction of the effectiveness of the adiabatic air film The accuracy is higher, and because the discrete air film hole has a three-dimensional vortex structure, and the cooling jet of the same exhaust film hole has discrete characteristics, multiple exhaust flows interfere with each other, and it is completely impossible to predict using the Sellers superposition model... Just being lazy. ??Although Chang Haonan''s hands were empty, he had basically memorized the details of the article in his mind. When he said this, he immediately pointed to the paper in Liu Yongquan''s hand: Look at Tables 3-4 to 3-7 in this article. "oh" Liu Yongquan turned to the third chapter of the paper a little hurriedly. "If you extract the strength of the vortex structure from several tables and calculate the Reynolds number, you will find that the turbulent boundary layer can enhance energy transport compared to the laminar boundary layer, thereby effectively reducing the strength of the vortex structure. In addition, their The research methods include using pressure-sensitive paint to measure the effectiveness of the insulating film for composite angular film cooling of differential arrays, and using thermotropic liquid crystal polymers to visually measure temperature. These methods are indeed quite advanced. " After a comprehensive evaluation, Chang Haonan finally concluded: In general, they are actually very close to the right direction in this article, but they didnt think in that direction at all when processing the data. So MIT doesnt even know its got a baby? ?Although Liu Yongquan still didn''t fully understand Chang Haonan''s technical ideas, he still understood this part of the content. "Yes, but they will not go on this wrong route for too long. The problem of slot jet is too big, and the higher the performance requirements of aviation engines, the more obvious the defects will be. For the United States, which is already installing and testing the fourth-generation engine. It doesnt take long for people to discover this. Chang Haonan walked back to the newly debugged equipment and patted the casing gently: "Theoretically speaking, third-generation engines such as the Turbofan 10 cannot actually use such high-end cooling technology. The third-generation nickel-based blade material and combined with traditional cooling technology are enough. F110 and AL31F are both Thats how it works. "But I am still planning to apply multiple rows of superimposed full-coverage film cooling on it. Taking the film cooling effect of the turbine end wall, blade top, trailing edge, and even the annular combustion chamber side wall into consideration as a whole, the cooling effect will be better. At the same time, it can also reduce the consumption of cooling air flow, which can be regarded as laying a technical foundation for future fourth-generation and even fifth-generation engines. The fifth generation engine? ??If another person had said that they were preparing for a fifth-generation engine when they didnt know anything about Turbofan 10, Liu Yongquan would have thought that the other person was crazy. But when Chang Haonan said these words, he just felt... It doesnt seem that exaggerated. (End of this chapter) Chapter 471 The key to the next generation of aviation Chapter 471 The key to the next generation of aviation development A fifth-generation engine is certainly not possible at the moment. The third generation is models such as F110 and AL31F with a push ratio of about 8. The fourth generation is models such as F119, F135, and AL51F with a push ratio of more than 10. ??If the Turbofan 10 is built according to Chang Haonan''s ideas, it will probably skip the third generation of fundamentalism and directly enter the category of three and a half generations. Of course, there are actually many differences between the third-generation and fourth-generation engines. It can be said that there are differences in the original design ideas, manufacturing processes, and material selection. ?The thrust-to-weight ratio is just the most intuitive data that is ultimately reflected in performance. Of course, there is also a third and a half generation in between, that is, the later models of F110, F414, and AL41F are basically third-generation engines, but they have applied some fourth-generation engine technologies, resulting in performance that is significantly higher than the upgraded versions of their predecessors. . It is worth mentioning that the fourth-generation engine is no different from the third-generation engine in its most basic principles, so there is still a performance trade-off that is physically unavoidablehigh-speed-oriented models generally have astonishing fuel consumption, while low-speed-oriented models The supersonic performance of the model will be extremely stretched (see Chapter 415 for detailed explanation). ? It is precisely to resolve this contradiction that the adaptive variable cycle mode is generally introduced in the conceptual design of fifth-generation engines in various countries. At low speeds, it can be a fuel-saving medium-bypass ratio turbofan engine, and at high speeds, it can even be transformed into a high-performance turbojet engine. Therefore, although the fifth-generation engine may not be able to achieve such a terrifying leap from 8 to 10 on paper data, it may even be due to the addition of a variable circulation device, causing the sea level thrust-to-weight ratio to fall instead of rising (the dead weight becomes larger) , the thrust has not increased that much), but the actual performance installed on the aircraft will far exceed that of the fourth generation. ?Its just that although the idea of ??variable loop is simple, if you really want to implement it, there are still too many details to be perfected. Even until the time before Chang Haonan was reborn, no one had yet determined which cycle-changing technology path was more feasible. If nothing else, the specific design concept of the compressor will undergo an almost earth-shaking change. So after briefly chatting about the future planning of domestic engine models, Chang Haonan and Liu Yongquan returned to the research at hand. Multiple rows of superimposed full-coverage air film cooling Liu Yongquan repeated this somewhat awkward term. Thats right. Chang Haonan took Liu Yongquan to the experimental table next to him. A laptop was placed on it, and an isotherm curve was displayed on the screen: I originally thought that the current TORC Multiphysics software could directly complete the gas-thermal coupling simulation, but when I actually operated it, I found that I still thought the situation was too simple. ??As he spoke, he circled a part of the graph with the brush tool: "You see, after the main stream comes into contact with the high-momentum cooling jet, a pair of vortex structures with opposite rotation directions will be generated on both sides of the downstream area of ??the jet. This will play a role in gathering the wall cooling air to suppress lateral diffusion in the direction of rotation of the vortex structure. , and it also has a tendency to lift the cooling air away from the wall. "so" Liu Yongquan still understands this picture: So the greater the blowing ratio (the momentum of the cooling air flow), the harder it is for the mainstream to suppress the cooling jet, and the earlier the cooling air will leave the solid wall surface, resulting in worse cooling effect downstream? Chang Haonan nodded, saying that he was indeed the person who really brought Turbofan 10 to maturity in the original timeline. Although he is currently a little inexperienced except for the big hair style, his basic skills are indeed good. He just watched After just a few glances, I quickly grasped the key conclusion: "That''s right, so if you comprehensively consider the gas-heat coupling effect of the entire engine, you will find that if you blindly increase the amount of cooling gas, the improvement in cooling effect will become less obvious as time goes by, and it will soon hit an upper limit. And because the airflow loss is too large, it will also affect the performance of the engine itself and even its working stability. This is impossible to discover if we only study the film cooling effect on the blades without considering the overall engineering considerations. I speculate that this should be one of the reasons why the Americans are currently taking a detour. " After his judgment was confirmed by Chang Haonan, Liu Yongquan almost subconsciously thought of the most direct way: If we enlarge the diameter of the air film hole, we can reduce the air flow rate while keeping the cooling air consumption unchanged, and improve..." But he quickly denied it himself: No, simply increasing the pore size of the air film will lead to greater pressure loss, which is not worth the gain Mr. Chang, if the cooling holes are changed from cylindrical to tapered, so that the inlet area is small and the outlet area is large, wouldnt it be possible to improve the coverage of the airflow on the blade surface? ?At this time, Chang Haonan did look at him with admiration. The cooling effect of special-shaped holes is better than that of round holes. This will be something that any undergraduate majoring in the relevant field will know in 20 years. However, at present, the research on this aspect in China is still blank. In the previous life, it was not until more than a year later that Rolls-Royce went to Northwestern Polytechnical University to sponsor a research project related to active cooling that China became aware of this. ?Engineering things are sometimes like a layer of window paper that has been pierced, and it looks like that. But if there is no one to guide it, it will take a lot of time just to find where the window is. Liu Yongquan, at least in a short period of time, found the right direction. The idea is correct, but it can go further. ?Chang Haonan took a pen and paper from the side and drew a schematic diagram on the paper: In fact, there is no need to make major changes to the cooling hole itself. It is enough to connect an expansion section to the outlet part, that is, the end of the hole, so that the pressure loss is smaller, and the flow rate at the exit of the air film hole can be greatly reduced. " Reducing the flow rate means reducing the momentum, the cooling air will hardly blow away, and the wall attachment effect is better. "Moreover, the interaction between the mainstream and the cooling air is weak, and the kidney-shaped vortices on both sides of the jet are weak. The meridional area will form an anti-kidney-shaped vortex pair structure, which also enhances the lateral diffusion of the cooling air. It can make the cooling air film more even! "That" Liu Yongquan only had a feeling of enlightenment at this time. The solution to the whole problem seemed as simple as 1+1: "Then we just need to change the round hole into this...this kind of special-shaped hole?" "Of course it can''t be that simple. What I just said is just the basic principles." Chang Haonan put the pen aside, waved his hand and replied: The air film formed by the special-shaped holes not only improves the effectiveness downstream of the hole, but also increases the heat transfer coefficient of this part, so the cooling effect on the solid wall area with a low heat transfer coefficient is relatively poor. "Furthermore, this awkward opening method will definitely affect the structural strength of the workpiece. We are building an aerospace engine, which has requirements for overload. Moreover, the environment of high temperature, high centrifugal force, and strong airflow impact itself is also a problem for the structural reliability. test." So, what kind of hole shape should be used, how to design the distribution of air film holes on the surface of the workpiece, and how to design the angle of the hole channelnot only the pitch angle, but also the lateral angle. These are all issues and must be made." "That''s why I have to order a piece of equipment. On the one hand, it is to study specific air film cooling solutions. On the other hand, it is also to accumulate some data for the next major version of the TORCMultiphysics software. The air-thermal coupling is different from the simple force There is still a big difference in thermal coupling, and Im afraid a new functional module is needed to do it well. Even Chang Haonan is not really omniscient and omnipotent. He has tried using his own software before, but there are too few theories and data in this area. What about the simulation results... It can only be said to have certain reference value. Then Mr. Chang, shall I design the experimental plan? Liu Yongquan behind him is already eager to try. Actually, Ive already designed it ?Chang Haonan glanced at the brand-new experimental equipment not far away. Ah this Liu Yongquan scratched the hairless head of his head with some embarrassment. But Chang Haonan changed the topic again: But you can also try it first, and then compare it with what I gave you after the plan is made. Liu Yongquans eyes lit up, and he suddenly felt that he could do it again: So...about the turbine parts sample for testing, or should we just use the turbofan 9? Yes, if you dont have the design data of Turbofan 9, you can directly ask the 430 factory for it. Under the operation of Chang Haonan, Turbofan 9 has now basically become the technical verification model of Turbofan 10. ?Although the temperature in front of the turbine of the former is unlikely to reach the level of 1200-1250, the cooling effect is certainly not too high. Especially if there is no need to change the blade material. ?Of course, its not just the 430 factory. Spey MK202 is actually just an engine with a thrust-to-weight ratio of 5, and its indicators other than fuel consumption are not even as good as those of many last-generation turbojet engines. As for the technologies tested by Turbofan 9, some of them can always be used back in mass-produced models. On the premise that the cost and overall structure remain basically unchanged, the performance will definitely be improved. (End of this chapter) Chapter 472 battle of routes Chapter 472: Route dispute Meanwhile, across the ocean, in the Boston metropolitan area of ??Massachusetts. ??In a large laboratory at the Massachusetts Institute of Technology, newly-minted professor Matthews Blade and several right-hand assistants are gathered around a single-stage turbine testing machine, preparing to start a new round of experiments. ?This brand-new equipment is the MT1 test platform they purchased directly from their colleagues at Oxford University. It can completely test the entire combustion chamber-turbine structure, instead of just studying the condition of a single blade. In fact, this kind of international collaboration is the greatest advantage of Western countries in the industrial field. As the leader of the entire group, the United States does not need to own key technologies in every field. As long as it can complete the international division of labor and resource integration, it can naturally obtain the best quality resources. Of course, the cost of this is that technology research and development and engineering practice will gradually become disconnected. After all, technical data can be saved, but engineering experience cannot. After experienced engineers retire, if a new generation of successors is not left in advance, the ability in this area will disappear rapidly. ?Of course, in the current 1990s, Americans who have just won the Cold War do not think this is such a big problem. Regina, its almost time to prepare. Go and set the experimental parameters. Brock, bring the samples for testing and get ready to start testing. ??Brad shouted to the two graduate students standing on the other side of the device. ??Regina stretched out her arm and gave him an OK gesture. ??Block took out several large turbine disks from a packaging box, and with the help of two other people, installed the one numbered 1 in the test position. This equipment is different from the one Chang Haonan ordered from 410. It uses an electric heating method that is easier to control and safer, instead of burning atomized aviation fuel to generate hot airflow, so there is no need to Clear the venue of all personnel. As long as you stay at a safe distance. A few minutes later, the three green lights on the console lit up, indicating that the entire experimental process just set was ready to begin. Although the device itself still needs some time to heat up, this can be done fully automatically after setting. And the data is also read and recorded online in real time. MIT''s laboratory is absolutely top-notch in terms of hardware. Compared with the Chinese lab, it''s like two different worlds. Not counting other auxiliary equipment, the MT1 test platform in the middle of the laboratory alone is worth nearly one million US dollars. ?But thats not important. As a research group sponsored by General Electric, Professor Brad is not short of this "little money". After losing to its main competitor Pratt & Whitney in selecting two fourth-generation engines, General Motors quickly set its sights on the fifth-generation engines for the Next-Generation Air Superiority Fighter (NGAD). ?This research is part of a project sponsored by General Electric. ?In terms of fourth-generation aero engines, both Pratt & Whitney and General Motors can still achieve great success through materials science and traditional second-generation active cooling technology. But this is already the limit. Future fifth-generation engines will require brand-new cooling technology anyway. So, money is not the focus, the key is that he needs to produce results as soon as possible. "Regina, remember to focus on the migration of the ''hot spot'' at the turbine entrance, especially the difference between the No. 2 experimental group and the No. 1 control group. You don''t have to wait until the entire experiment is completed, as long as the results come out, Just send it to my office first. Professor Brad is not impatient, but the company representative sent by General Motors is standing next to him, so he can''t continue to take his time. This is the same as social animals. If your boss sees you fishing once, he will doubt whether you have been fishing all the time. ?Now that Party As father is here, he must show a sense of urgency. "Professor Brad, we saw that your research group published a paper last month titled "Research on Flow and Heat Transfer Characteristics of Air Film Cooling Structures." The sample you are testing now is also based on what was mentioned in the paper. Cooling jet superposition technology? GM representative Andrew Goldstein asked as he looked at the roaring experimental equipment in front of him. ?Although he is the person responsible for project management, he also studied thermodynamics in his early years, so he is not completely ignorant of technical issues. "How can it be" ??Brad glanced at Goldstein next to him. ?He concealed the disdain in his eyes very well: The cooling jet superimposed on small and micro gas turbines has a good effect, but if it is enlarged to this size, the superimposed effect cannot reach the level mentioned in the paper, and it is impossible to solve the heat caused by uneven working fluid parameters at the turbine inlet. agglomeration problem. So that article Goldstein only went to work after his undergraduate degree and was not very clear about these things in scientific research. Its just scraps of some research results. My students will eventually graduate. Brad replied nonchalantly. Perhaps because he felt that his attitude towards the representatives sent by the sponsor was a bit harsh, he continued to explain: "The turbine structure that is being tested now uses laminate cooling that combines film cooling and impact cooling. We have previously predicted the heat accumulation, which is the ''hot spot'' I just mentioned, through numerical calculations. Migration rules throughout the turbine channel. "In this way, multi-row slit jets can be used for impact cooling in a targeted manner on its migration path to enhance the cooling effect, while film cooling can continue to be used at other locations to reduce unnecessary pressure loss. What is the final result... " At this point, Brad paused. ? He ??has actually calculated a rough number through a computer, but the real test results will come out soon, and the latter is obviously more convincing. Well know when the test results come out. In short, it will be a revolutionary improvement compared to traditional methods. After Brad finished speaking, he straightened his lab coat with great satisfaction and put his hands in his pockets. In the past, due to the existence of hot spots, the cooling of the entire turbine section had to be designed redundantly according to the temperature there, which was a great waste of cooling power. My new technology can solve this problem and maximize the cooling power where it should be used. ?This explanation is so down-to-earth that even Goldstein can understand it. Professor Brad, if someone reads the paper you published, will they go in the wrong research direction? While talking, the two of them walked towards the office next to them one after another. Its possible. ??Brad stopped at the door of the office, turned his head and looked at Goldstein again: But if that were the case, wouldnt it be better? (End of this chapter) Chapter 473 MIT opens champagne at halftime Chapter 473: MIT opens champagne at halftime ?After hearing Brad''s answer, Goldstein was stunned for a moment, and then showed a knowing smile. Obviously, these academic guys are no different from those in business. ??Water A paper with a high impact factor may also mislead potential opponents in the research and development direction. Its a win. A win-win situation means I want to win twice. Can the progress be accelerated? Now that Brad has determined the correct research direction, Goldstein, as a representative of the company and Party A, is naturally more concerned about when the results can be produced. Although the NGAD project has not yet been announced, and the supporting fifth-generation aeroengine does not even have specific technical parameter requirements, the relevant technology can be applied to the next-generation civil aeroengine that General Electric is promoting. Better cooling performance means higher turbine front temperature, and higher turbine front temperature can not only increase thrust intuitively, but also reduce fuel consumption while keeping thrust unchanged - because under the same power, compressed air is needed. The machine does less work and consumes less fuel. For passenger planes, this is a sure win. You must know that Airbus is advancing their A3XX super-large passenger aircraft plan to compete with the Boeing 747, and General Electric is currently ambitious and is preparing to compete with Rolls-Royce in engine selection. It is expected that at least 300 of this super passenger aircraft will be produced. Considering that the engine will need to be replaced several times during its entire life, it will be a huge market of 3,000-4,000 units. You must know that this is not a gadget like the CFM56. The A3XX needs at least a large bypass ratio turbofan with a thrust of 35-40 tons, and each one is incredibly profitable. More importantly, after losing to Pratt & Whitney in the selection of two fourth-generation military engines, although the F119 and F135 actually have quite a few parts produced by General Electric, they did not suffer any loss in revenue. , but the companys stock price has been running at a low level. This is definitely not good news for the management team. ?Of course, General Electric has a big business and will not rush to replace people in a short period of time. ?However, at least in the next few years, the company still needs a landmark victory to boost market confidence. ? And a world-famous project like A3XX is obviously a good opportunity. Is this... Brad hesitated for a moment: According to my experience, research work is about maintaining a stable work rhythm. If you blindly increase the workload to promote research and development progress, it is likely to be counterproductive in the end. ?Just when Goldstein nodded and was about to let the topic go, the other party suddenly added something. So...you have to pay more! I need to recruit more intern researchers, more experimental samples, and supercomputer computing resources! "have to" Good guy, it turns out I need money. ?However, for such a project of great importance and bright prospects, General Electric, which has deep pockets, is indeed not short of those few million dollars. ?Seeing Brad who was so motivated and confident, Goldstein also felt a little open about the future, and immediately assured the former: Okay, I will apply to the higher-ups when I get back, and GE will do its best to support your research! Thank you, its an honor to work with such a great (money) company like General Electric! The new equipment of Brad''s research team is indeed not in vain. Although the heating speed of electric heating is not as good as the traditional method of direct fuel injection and ignition, the temperature control accuracy far exceeds the latter. The probability of obtaining valid experimental data has increased from What used to be less than 20% soared directly to nearly 100%. Not to mention advanced fully digital monitoring and recording equipment, which can simplify experimental operations to no more than five steps, greatly liberating manpower and reducing many problems caused by human errors. Therefore, before Brad and Goldstein finished their second cup of coffee, Regina, the female graduate student assigned by the former to conduct the experimental operation, knocked on the door and walked in. ??Also holding a floppy disk in his hand. Professor, the part of the data you want has been released, and its all in here. Brad put down the half-drunk coffee, took the floppy disk, and inserted it into the floppy drive. Within a few minutes, a black and white temperature distribution map was displayed on the computer screen. ??Regina did not leave the office just like that, but introduced to the screen: "The hot spots on the leading edge of the high-pressure turbine guide vanes will gradually migrate to the outside as the thrust increases. The migration path is slightly different from our previous predictions, but the overall pattern is consistent. In the control group using impingement cooling, the hot spots Although the blocks are still there, the temperature has dropped a lot compared to the control group. Professor Brads research group is not small in size, and the competition pressure is even greater. She will certainly seize such an opportunity to perform. "The current problem is that after jet cooling is applied, the tip portion of the turbine blades will accumulate more heat than in the past. It is difficult to arrange jet slits at this location. The effect of film cooling alone is also average, and the temperature does not exceed the maximum temperature. limit." "This is not a big problem. The tip area has always been the most difficult area to deal with on turbine blades. The change in the position of the hot spot also requires further testing. It is already very good that the first test can achieve such obvious results. , at least it proves that our idea of ??using shock cooling to focus on strengthening is correct! Looking at the pictures in front of him, Brad was obviously in a good mood. The numerical analysis results are inaccurate. Is it a big problem? It is just to provide a reference. ?There is no way anyone can really calculate it and it is basically close to the actual situation, right? No way? The corners of Brad''s mouth curved into a smile of joy. This means that his research group has reached the forefront of the world not only in compressor design, but also in turbine design. ?Even surpassed Oxford University, which provided this MT1 test platform. After processing the experimental data and handling the equipment, we will organize a small banquet in the evening to welcome Mr. Goldstein! It should be said that Brad is quite capable. He is able to take into account the complex non-uniform factors at the turbine inlet without relying on experiments, and use impact cooling to deal with them in a targeted manner. He is definitely a hero in the field of aerospace research. The only fly in the ointment is that his calculations were completed before getting the MT1 platform, so the research object has always been individual turbine blades. ?Of course this is not Brad''s problem. At the level of supercomputing in the late 1990s, relying on normal calculation methods, it was indeed impossible to conduct gas-heat coupling modeling of the hot end of the entire aeroengine. But if he had heard Chang Haonans evaluation of the leftovers article, he would have realized that impact cooling has its limits. Adding cooling slots to all hot areas is a headache-inducing act, but when it comes to the segment walls, the effect will be very poor. Hence, it is not a trivial matter that heat accumulates in the tip portion of turbine blades. Especially in a real aero engine. Since the combustion chamber and turbine structure are surrounded by the casing, the overall heat dissipation conditions are actually worse than on the experimental bench. ? And the high-temperature airflow sent out by the combustion of aviation fuel in the combustion chamber is ultimately not as stable as electric heating... (End of this chapter) Chapter 474 "Taihang" engine design review meeting (thousands of days per day) Chapter 474 "Taihang" Engine Design Review Meeting (10,000 per day) Chang Haonan, who is far away in China, certainly has no idea that his colleagues at MIT have gone further and further down the wrong path due to a moment of negligence and many coincidences. In fact, he originally thought that the other party would soon realize that something was wrong. I can only say that it is still overestimated after all. For Chang Haonan, after helping Liu Yongquan get the film cooling test on track and obtaining some of the most basic data, the overall design plan of the turbofan 10 should be finalized. Although the previous plan was to design and manufacture two legs to walk at the same time, there was still a question of whether to step the left foot first or the right foot first. Mr. Qian once summed up a very important core point of view in "Systems Engineering Theory". To make any technical product, we must start from the existing conditions. We do not need to insist on the advancement of individual technologies, but we must ensure the rationality of the overall design. . ??Although Chang Haonan has taken over the Turbofan 10 project for several months and the progress has been progressing by leaps and bounds, strictly speaking, most of his previous work still belongs to the category of "pre-research". If the overall technical route is not determined, the research and development work of all subsystems will not be carried out. So, this is definitely the top priority of the entire project. ??It is also a process that he hopes to expose Chinas aerospace development researchers to. ?In addition, such a big matter cannot be decided by Chang Haonan alone, or by gathering together a few core members of the 606 Institute like the first time. Although allowing a young man to serve as the chief designer of a key aircraft engine model already reflects the organization''s high degree of recognition and trust in him, trust is trust, and things that should be done according to the rules cannot be omitted. To officially transfer from pre-research to model development, the design review meeting must still be held. Of course, with Chang Haonans current reputation in the aviation industry system and even the entire military industry system, there will definitely be no shortage of small privileges. For example, under normal circumstances, the Commission of Science, Technology and Industry for National Defense and the General Armament Department decide how, where and when the review meeting will be held. Even in order to save time and resources, some non-key models are packaged according to categories. Focus on the review again. But for Chang Haonan, he only needs to prepare relevant information and call Ding Gaoheng to decide these details by himself. ?Of course, the comrades from the general offices of the two ministries and commissions are responsible for the organization of the conference, so he does not need to worry about it. The main research and development units of turbofan 10 are 606 Research Institute and 410 Factory. This meeting was naturally held in Shengjing. However, due to Chang Haonan''s request, in addition to the experts and leaders who participated in the review, as well as the main responsible comrades of the turbofan 10 research and development team, there were also many comrades involved in the research and development. As a result, the original planned venue, namely 606 conference halls, seems a bit stretched. Finally, under the personal coordination of Cao Gangchun, the director of the General Armament Department, they borrowed the opportunity to use the official auditorium of the Shengjing Military Region. Old building, but the advantage is that the place is large enough. ??More importantly, it is very close to the government guest house of the Shengjing Military Region A design review of this scale will definitely not be completed in one day. Local researchers can go home to their dormitories, but participants from other places must find accommodation. ?The night before, Chang Haonan brought relevant design materials and arrived at the venue in his Jetta King. As a large military region at the corps level, the Shengjing Military Region garrison is an important military area that no one can enter. Even if Chang Haonan and others come from military industrial units that are closely related to the army, they are still non-military local personnel. ?Hence, I waited at the door for a while and then I saw a camouflage-painted Mitsubishi off-road vehicle driving out of the courtyard. A lieutenant colonel with the rank of 20,000 men got out of the car. The latter spoke a few words to the sentry, and then motioned to the convoy outside to follow. The group of people finally entered the military compound safely. I think the security of our military industrial units must be upgraded according to this standard in the future. Chang Haonan turned around and glanced at the sentry who had just finished saluting at the door, and said half-jokingly. ?Zhu Yadan, who was driving, curled his lips: Chief, its not that I look down on the comrades in the local security department, but if nothing else, it would be difficult for them to stand guard outside 24 hours a day Shengjing also assigned a full-time driver to this car at first, but this would occupy an extra position. ?Furthermore, according to Zhu Yadan, drivers who have not received special training will only operate randomly once they encounter an emergency, which may lead to accidents. The steering wheel is still in your own hands. So within a few days, the other party was invited to leave by her. Of course Chang Haonan also knew that what Zhu Yadan said was the truth: What a good wish...and having said that, with the gradual improvement of our countrys scientific research level, we really need to pay attention to this aspect. "I think... as long as we protect you, other places are not so anxious." ?While working as a driver and bodyguard with Chang Haonan, Zhu Yadan finally experienced what it meant to be a "white jade pillar holding up the sky, and a purple golden beam bridging the sea." She estimated that at least 70% to 80% of the new technologies and equipment she had heard of in the past two years were directly or indirectly related to Chang Haonan. "Not to the extent, not to the extent." ?Chang Haonan quickly waved his hand: Although I did play a role in some key positions, the results are always achieved by all comrades..." While the two were talking, the motorcade had already stopped at the entrance of the government auditorium. What surprised Chang Haonan was that the people waiting here to greet them seemed to be...a bit high-level. He lowered his head to check what he was wearing, and then got out of the car. The officer led by the officer came forward, but when he saw Chang Haonan''s face clearly, he was obviously stunned for a moment. But after all, he was a seasoned veteran, so he quickly adjusted himself and shook hands with Chang Haonan: Are you Comrade Chang Haonan? I am Commander Li Liangxin. On behalf of all the comrades in the military region, I welcome the arrival of comrades from the military industry system! At a time when the Internet was not very popular, people''s appearance could only be transmitted by word of mouth. The biggest feature of Chang Haonan, apart from being handsome, is naturally his youth. So Li Liangxin, who had received a call from Cao Gangchun in advance, was actually mentally prepared. I knew I was young, but I didnt expect to be this young... ?This enthusiastic opening speech was completely beyond the expectations of Chang Haonan, who had just got off the car. You are too kind, too kind Chang Haonan, a general of the same military rank, has seen a few of them before, but this is the first time he has met one who looks like this. Hey, youre welcome, youre welcome, my old friend Deputy Commander Zheng wanted to fly back from Anshan when he heard that you were coming for a meeting, so I stopped him..." As he spoke, he led Chang Haonan up the steps outside the auditorium, and then he remembered to explain further: Oh, Deputy Commander Zheng is the deputy commander of our Shengjing Military Region and the commander of the Military Region Air Force. Zheng Shenxia has the same surname as Commander Zheng Liangqun, whom you should know, but they are not from the same family. ?Now Chang Haonan finally understood the crux of the matter. It was the troops of the Shengjing Military Region who achieved the first air combat results of the Chinese Air Force in 30 years. ??Although this incident has not been publicly publicized even within the People''s Liberation Army so far, it has given Li Liangxin a big face anyway. ? And Chang Haonan made significant contributions to the two main combat equipment of aircraft and missiles participating in the war, so it is normal for him to be loved by the opponent. Military-civilian alliance and mutual promotion are all efforts for the modernization of national defense..." ?Although the former himself feels very happy about this, he still needs to be polite. The review meeting is scheduled to be held tomorrow morning, so except for a few leaders who really can''t get away, most of the participating experts have chosen to arrive one day in advance. Therefore, when Chang Haonan prepared the materials needed for the next day''s report in the main conference hall and was taken to the canteen of the agency guest house, he saw many familiar faces. Xiao Chang, this review committee of yours caught me off guard. ?Du Yishan walked up to Chang Haonan with a half glass of beer and patted him heavily on the shoulder twice. Although he is nominally Chang Haonans doctoral supervisor, even Mr. Tianwang cannot know the research progress of the turbofan 10 engine in real time without the authority. So for Du Yishan, almost without warning, he suddenly learned that his student had done a shocking job. Who would have thought that within three months of taking over the project, he would have finalized the overall design plan. Of course, Du Yishan, as an expert in the field of aircraft design and Chang Haonans mentor, does not serve as a member of the review panel, either from a professional perspective or from the perspective of avoiding suspicion. The person who is actually responsible for the technical appraisal of this review is Liu Zhenxiang who is standing next to him. ?But I can be considered an acquaintance with Chang Haonan. Xiao Chang, this is my third design review for Turbofan 10. Im afraid its unprecedented, right? Liu Zhenxiang also clinked glasses with Chang Haonan and said in a slightly funny tone. "the third time?" Even Du Yishan, let alone Chang Haonan, is not very clear about this matter. Yes, shortly after the Turbofan 10 project was established ten years ago, there was a design review, but at that time we couldnt even copy other peoples engines, so naturally we failed in the end. "Later between 1993 and 1994, they used a new plan to drive it for the second time. They came up with a design of a CFM56 core engine. Looking back now, it is basically similar to the F110 engine. There is no problem with the design, but there are many technical issues. We simply couldnt meet the details, so we let it go. The third time? Its now. ?Chang Haonan said in his heart, "Good guy, I know that the turbofan 10 is ups and downs, but I never thought it would be so ups and downs." But this time, with our Comrade Xiao Chang here, I still hold an optimistic attitude, otherwise, nothing will come... Liu Zhenxiang picked up the cup, drank the remaining wine in one gulp, and waved his hands at the same time. Dont worry, Academician Liu, this time will definitely be the last design review. Chang Haonan said in a deep voice. So confident? Liu Zhenxiang and Du Yishan looked at each other and smiled in unison. Well...the several key technologies that have been solved are going quite smoothly, and they are in line with the design plan, and there will be no major problems! (End of this chapter) Chapter 475 2711 engine structure Chapter 475 2-7-1-1 Engine Structure Generally speaking, small meetings are held for big things and big meetings are held for small things. ?But this time, it was a big event. As the heart shared by two domestically produced third-generation main fighter jets, and possibly the power source for future naval main battleships, the importance of the turbofan 10 engine in Chinas equipment sequence goes without saying. As the first aerospace engine model in China that is completely self-developed starting from the core aircraft, Turbofan 10 is also of great importance to the aviation industry system. ?Taken together, the level of this judging panel made Chang Haonan himself, who was standing on the stage, feel that it was a bit exaggerated. In addition to leaders and experts from the Science and Technology Commission and the General Armament Department, there are even higher-level figures in charge of science and technology participating. For a project in the field of aviation power, this is definitely an unprecedented first. In the past, only key main battle equipment could enjoy the same level of treatment. In the eyes of most people, this probably just reflects the importance attached to the turbofan 10 by superiors. But Chang Haonan knew more things after all. ?About two and a half months ago, the reform plan for the Aviation Industry Corporation submitted by him, Du Yishan, and Liu Zhenxiang involved splitting it into two group companies: Aviation Industry and Aviation Power. Todays super-standard treatment, if you think about it further, seems to be regarded as the superiors emphasis on the entire aviation power system... In other words, Chang Haonans performance today is likely to affect the future development direction of the entire industry. It is absolutely impossible to say that there is no pressure at all. ?However, when the soldiers come to cover up the water and the earth, everyone is already here, and the review meeting will have to continue regardless of who comes. Furthermore, Chang Haonan believes that it is impossible to find anyone in China who understands turbofan engine design methods better than him. Confidence comes from professionalism. Offsite, conference staff have begun distributing paper technical materials to all attendees. ?Of course, those who are sitting in the back and listening will not get a share. Fortunately, these people themselves are also R&D personnel participating in the Turbofan 10 project, and they are participating in an exceptional manner, so they can learn a lot. In fact, according to the design review regulations, the review notice and necessary review materials should generally be sent to the review team members 3-5 days in advance to facilitate prior review by the review team members. However, this notice conflicts with the confidentiality regulations in the military industry system. It is okay for ordinary projects. After all, the people who can participate in the review are not ordinary people. However, the more important and confidential the key projects are, the more difficult it is to obtain information. It was sent out in advance, so most experts only saw these materials for the first time when they arrived at the scene. From a review perspective, this is of course problematic ??This time it is Chang Haonan who is in charge of the project. These details may not be important, but it may not be so if it is someone else next time. ?However, it is not without its benefits. That is to say, the effect of the program is absolutely full. Because, everyone present, at least everyone who knew the technology, after getting the information and turning the first page, they all made a dumbfounded expression of surprise. Since the information was distributed in order of seating, to Chang Haonan on the stage, it looked like a wave below. The expressions of the big bosses changed gradually from curiosity to shock following the footsteps of the two field staff... Especially a gray-haired middle-aged man sitting on the left side of the center of the expert seat. He was still leaning on the back of the chair in a relaxed state. However, after seeing the structural diagram of the turbofan 10 printed on the first page, he immediately became agitated. Vibrating, as if there were springs on the backrest, the whole person sat up straight in an instant. ?He quickly picked up the ballpoint pen that was distributed with the information and counted it several times on the paper, muttering numbers like one, two, three, and four in his mouth. Level 9...Level 9? After being stunned for a while, he turned around and whispered to Liu Zhenxiang, who was sitting in the middle of the expert table next to him: Academician Liu, have you given the technical information of R79 to Institute 606 for reference before? Liu Zhenxiang is naturally one of the very few reviewers who has seen the design plan in advance, so this effort is quite stable. Just a few days ago, when he took out this information from the confidential document bag for the first time, his expression was not much different from that of his current colleagues. ?So just by looking at the expression of the person next to him, and combined with this somewhat nonsensical question, Liu Zhenxiang knew what the other person was thinking. "Lao Jiang, take a closer look. Although the total levels are all 9, the R79 is 3-6-1-1, and this one is 2-7-1-1. The core machines are different (the core The machine only includes the high-pressure compressor, combustion chamber and turbine, the fan/low-pressure compressor is not included). ? Jiang Fuhe, the chief designer of the Gas Turbine Research Institute (624 Institute), presided over the design and development of the entire turbojet 13 engine model spectrum, and made a huge contribution to maintaining the basic combat effectiveness of the Chinese Air Force between the 1980s and 1990s. Of course, in today''s timeline, due to the branch of the Turbojet 14, newer aircraft no longer need the Turbojet 7/13 as power. According to my country''s practice of equipping one generation, developing one generation, and pre-researching one generation, now that the turbojet 14 has been officially equipped in the army, and the turbofan 10 is under development, it is natural that the fourth-generation aeroengine for the future will also start pre-research. ?The person in charge of this preliminary research is Jiang Fuhe. For some reference, in 1996, Institute 624 obtained some technical data of the R79V-300 engine from the Tumansky Design Bureau, and its most obvious structural feature is the three-stage fan-six-stage high-pressure compressor-stage High pressure turbine - 3-6-1-1 structure of the first stage low pressure turbine. The design of the turbofan 10 has not been refined yet. What Chang Haonan drew on the document is just a schematic diagram. Its main function is to serve as a reference for subsequent component-level analysis. It is really unclear if you dont look carefully... Thats why I asked the question just now Of course, when we really started working on the fourth-generation engine behind the 606 in our last life, we found that even if the core engine of the R79 was drained, it could only push the ratio to level 9. Then we had to start all over again, and finally experienced ninety-nine and eighty-one difficulties. Repairing the Turbofan 15 to its full potential is a story for another time... Nothats not the point Jiang Fuhe turned over his head and found that it was exactly what Liu Zhenxiang said, but he quickly raised his head again: Isnt this a turbofan 10? "yes." Liu Zhenxiang nodded. Isnt it a third-generation engine? "yes." Continue to nod. Butthis overall structureis not Jiang Fuhe raised his hand and showed four fingers: Not a typical... fourth-generation characteristic? By increasing the single-stage compressor pressure ratio to reduce the total number of compressor stages, thereby reducing the possibility of surge and the engine''s own weight to improve the performance limit, this is a typical fourth-generation aeroengine idea. ? It is impossible to achieve a thrust ratio of more than 10 for a third-generation aero-engine core engine relying on a traditional 8-stage or 9-stage high-pressure compressor. Large-scale models generally use level 6 or 7, while medium-level models like the EJ200 do not consider the subsequent derivation of other models, and even adopt an astonishing 3-5-1-1 structure. Combined with reducing the number of detachable parts and reducing the weight of supporting structural parts, a thrust-to-weight ratio of level 10 was achieved under the dual constraints of cost and technology (although the cost was not limited in the end). "Well...no one stipulates that third-generation aircraft engines cannot use some technologies of fourth-generation aircraft engines, right?" Liu Zhenxiang touched his chin and replied: As for more detailed questions, you can ask Comrade Xiao Chang himself directly later. In fact, when he came here today, he was most interested in the overall design of the engine that looked very much like the fourth generation. You know, compared with the compressor of the previous turbojet 14, it is not an exaggeration to say that it has reached the sky in one step. ifier Jiang Fuhe leaned back on his chair again. As an aviation engine expert, he can naturally see at a glance that due to the advanced core engine structure, this turbofan 10 actually has the potential to be directly improved into a fourth-generation engine. Then our research progress at Institute 624 must be accelerated no matter what, otherwise... Im afraid it wont be used... (End of this chapter) Chapter 476 Turbofan 10, the 375th generation aviation engine! Chapter 476 Turbofan 10, the 3.75th generation aviation engine! The design review will officially begin soon. ?Although the entire meeting will last two full days, everything is difficult at the beginning. The most important moment is actually the few hours in the morning of the first day. Not only because the big leaders are there, but also because the most important design ideas and basic technical routes are usually concentrated in the first half of the day. Once there is no problem with this part, the entire project will be basically stable. This is the component-level analysis model of the turbofan 10 engine, which is also the zero-dimensional analysis model. In the overall aircraft design stage, a large number of design options need to be evaluated. Considering the limited actual performance of my countrys supercomputers, this requires the calculation speed of the engine analysis model to be fast enough. At the same time, taking into account the accuracy requirements and the need for thermodynamic parameters of engine components for engine noise and emission calculations, component-level performance models are used to calculate the thrust and fuel consumption characteristics of the engine Therefore, we regard each component of the engine as a whole, and only calculate the thermodynamic characteristics of the inlet and outlet of each component. Based on the common working relationship of each component of the engine, we determine the common operating point of the engine, and finally obtain the thrust, fuel consumption and The status of each component At this step, we will not consider the casing and other auxiliary accessories for the time being, and simply calculate the design point and non-design point performance of the engine..." When calculating the design point performance, based on the input design point altitude and flight Mach number, as well as the engine bypass ratio, fan boost ratio, compressor boost ratio, turbine front temperature and other thermodynamic cycle parameters, the efficiency of each component or the total Pressure loss and engine air flow. Based on the order in which the airflow flows through the various components of the engine, the thermodynamic parameters of the airflow at the inlet and outlet of each component of the engine, the unit thrust and fuel consumption rate of the engine, etc. are calculated. Finally, the net thrust of the engine and the main cross-sections of each component of the engine are calculated based on the air flow of the engine. Size parameters" These contents will be basic knowledge for aerospace designers twenty years from now, or even graduate students in related majors, and can be conveyed directly in two sentences. But in the 1990s, apart from Chang Haonan himself, there were few people in the country who had seriously engaged in aviation engine design from scratch. Everyone was groping in the dark, so I still need to introduce it in detail. On the other hand, these workflow-level things are also very important for the technical staff who sit further back and only attend the meeting. Due to the different division of labor, most of the members involved in the research and development of the Turbofan 10 did not actually have the opportunity to truly touch the entire project. They only completed a certain small direction and even small details in accordance with the requirements of Chang Haonan or their immediate superiors. Its just a task. For the turbofan 10 itself, this division of labor is certainly reasonable. But Chang Haonan is planning to use these people as seed personnel in China''s aviation power field. Specific technical development is of course important, but for them, they still need to be exposed to the relevant ideas of overall design as early as possible. The best opportunity is of course the two-day technical review meeting. From Chang Haonans perspective on the stage, we can already see many people writing furiously with their heads down. He even slowed down a bit specifically for this purpose. After all, I have been a student. The teacher talked endlessly on the stage, and I wrote down the notes below. Who hasnt experienced the feeling of taking off? So Chang Haonan added two more sentences here: "However, compared with other common zero-dimensional models, thanks to our company''s newly developed multi-physics coupling algorithm, we can relatively accurately establish mathematical models describing these aerothermodynamic processes in this step, so there is no need to Too many simplifying assumptions. First of all, the airflow in the engine must still be treated as one-dimensional flow. This is the core of establishing a zero-dimensional model. However, thanks to new technologies, it is possible to take into account the impact of turbine cooling bleed air, external bleed air and power extraction on engine performance, combustion chamber combustion and heat transfer models, and the impact of Reynolds number on the characteristics of each component... " ?Now, its not just the people sitting in the back who are taking notes. Even Jiang Fuhe and others on the rostrum pressed the ballpoint pens one after another, making an almost uniform "click" sound. Next, I will introduce the aerodynamic and thermodynamic characteristics of each component in the order of atmospheric environment, inlet, compressor, combustion chamber, turbine, nozzle, manifold, and joint working model..." Just as Chang Haonan expected, when he showed more detailed design data on the projection screen, whispers immediately came from the entire judging panel. After all, the structure of Turbofan 10 is considered unique even in the field of turbofan engines in the world. Even for a 9-stage compressor, 3+6 is generally chosen, and 2+7 is rarely used. What''s more, the pressure ratio of his high-pressure compressor is very high, and the subtracted first-stage fan even seems to be deliberately lowering the first-stage pressure ratio... The expected thrust-to-weight ratio of 8.5-9.0 made everyones first reaction unbelievable. Because this is already the technical indicator for third-generation majorly modified engines such as AL41F or F110-GE-132 to be pushed to the limit. These two models are actually still in the process of flight testing... ?Good guy, the turbojet 13 is still at the level of the 1960s, the turbojet 14 can already compete with the F404 in the early 1980s, and now the turbofan 10... Directly catch up with the most advanced level in the 21st century? Its really just the same model for 20 years? ? Until Chang Haonan''s mouth went dry while talking, he finally came to an end on the overall design and component-level analysis model, and entered the morning question session. Even if the leaders sitting at the leadership table know a little bit about technology, they cannot be experts in the field of aviation development, so the first person to ask questions was Jiang Fuhe, who had already been impatient. The question is naturally about the core machine structure that he has been itching about for a long time. "Comrade Chang Haonan, I noticed that you used a structure like a 7-stage high-pressure compressor on the turbofan 10. Of course it is very advanced, but I want to confirm that the current compressor design level in our country can guarantee that it will pass 2+ Can the total boost ratio of 25-26 be achieved in the form of 7? In addition, it is also a 9-stage compressor, why choose 2+7 instead of the more common 3+6 form? Chang Haonans answer was even more direct: These two questions are actually the same thing. Because the core engine of the Turbofan 10 is actually the core engine of a fourth-generation engine. "ah?" Reallyreally the fourth generation? There was almost an explosion below, but fortunately there was a big leader sitting nearby, so order was quickly restored. Chang Haonan continued to explain: "Regarding the issue of single-stage pressure ratio, we have made a huge breakthrough in the active control technology of blade separation flow. Compared with traditional compressor blades, the single-stage pressure ratio is significantly improved. With a total of 9 stages of compressor, it can be achieved The total boost ratio required in the design specifications. As for the specific technical details, according to the plan, they should be discussed this afternoon. After finishing speaking, Chang Haonan added another important statement: Actually, if we dont take into account that the inlet structure of this engine has a very good boost capability, this 2-7-1-1 structure can even reach a pressure ratio of around 28. But in that case, the supersonic performance of the J-10 and J-11 will definitely not be optimistic. Thats why you specifically reduced the number of fans? Liu Zhenxiang seemed to understand something. Yes, but not quite. Chang Haonan said and turned the PPT back to the page where the overall structure of the turbofan 10 was drawn: Generally we think that third-generation engines such as AL41F and F110GE132, which use part of the fourth-generation engine technology and have been enhanced, are called 3.5 generations. "As for our Turbofan 10, it is essentially a fourth-generation engine, but because our country does still have huge shortcomings in materials and processes, it is unable to meet some of the requirements of a true fourth-generation engine, so , had to lower some performance requirements. If I have to say it, I probably have to use some fourth-generation engines that have been weakened by the third-generation engine technology. Therefore, we are used to calling it...the 3.75th-generation engine. ?This statement is concise and concise enough that even leaders, let alone experts, completely understand it. Meaning that you are ready to enter the international leading level? Looking at the speechless audience, Chang Haonan left behind the desk and walked to the middle of the podium: Thats why I designed the 7-stage high-pressure turbine required for a 10-stage engine with a thrust-to-weight ratio. After all, the core engine structure cannot be changed, and the fan can be added later. In the future, we only need to make in-depth improvements based on this core aircraft to develop a true fourth-generation aviation engine! (End of this chapter) Chapter 477 Let’s work hard towards vertical takeoff and landing. Chapter 477: Lets work **** vertical takeoff and landing... At the beginning, Chang Haonan did design a complete 3-7-1-1 structure, and even directly raised the sea level thrust-to-weight ratio to an astonishing level of 9.5-10.5. It is completely a fourth-generation engine. ?However, he soon realized that even if he cheated, it would be impossible to actually build this thing in a short time. So we simply made some fine-tuning and performance compromises, and removed one stage of the fan, resulting in a somewhat peculiar 2-7-1-1 structure. ?Of course, even so, the overall performance of this turbofan 10 is enough to be among the best among today''s military aero engines. Anyway, its definitely no problem to sit five and look out to three. ?Chang Haonan''s statement directly messed up the atmosphere of the entire design review meeting. ??What''s the point of reviewing this? Lets learn from it. ?Like the blade separation flow active control technology mentioned by Chang Haonan just now, such as boundary layer suction, this technology is still in the process of installation and testing in traditional aviation powers. ??To be honest, others are experimenting and we are still on the drawing board, so we are indeed still a few years behind. But on the one hand, judging from the current catching up speed of China, who can use these technologies first is still a matter of two minds. On the other hand, being a few years behind was something that would have been unimaginable for China''s aviation engine industry in the past. After all, just two years ago, what everyone was thinking about day and night was how to narrow the gap to less than 20 years! ?The best turbojet 13 in the country at that time, to put it bluntly, it was just a limited improvement of the R11F300. Even when the turbojet 14 was in service, although it made rapid progress, it was mainly due to the low starting point. Just building something would be a huge leap... However, this turbofan 10, although it is still on the PPT, at least from the overall plan, it is already the top level. The review meeting must of course continue. ?However, the 1250C turbine front temperature mentioned later and the related technology of full-coverage film cooling of these hot-end components are no longer so shocking in comparison. Its not that its not important. mainly Already numb. There is no longer the feeling that Grandma Liu entered the Grand View Garden at the beginning... For other attendees sitting further back in the venue, Chang Haonans paragraph also made quite a few of them realize for the first time what a huge project they were participating in That''s right, in fact, for a highly complex project, most screw-type participants may not know what they are doing until the end of the project. ?This has nothing to do with confidentiality. This is also true for many civilian projects that are not classified. This is just a side effect of the highly specialized division of labor in society. Lets go, Lao Zhou, I just know the design goal of our turbofan 10...is it so exaggerated? ??While an expert group discussion was taking place, Lin Zhibing, an engineer sitting in the back seat in the middle, finished adding the notes he had just jotted down in sketch, rubbed his aching hands and said to another companion next to him. However, he did not receive any response for a long time after he finished speaking. Looking up, I realized that the other person was still concentrating on writing something in the notebook at hand. Apparently, he didn''t hear clearly what he just said. Lao Zhou? Refining red? After calling out several times, it was obviously the companion named Zhou Lianhong who finally reacted: "What''s wrong?" ?Lin Zhibing, who was a little helpless, had no choice but to repeat what he had just said and take a look at the contents of the opponent''s notebook. It is indeed what Chang Haonan just talked about, the thermodynamic model and so on. But around these contents, there are many annotations and sketches densely marked. "This is" Both of them are from Jianning, Hunan Province, but Lin Zhibing is the engineer in charge of technology at Factory 331, while Zhou Lianhong is an aviation engine designer at Institute 608. They had known each other at work before, and they were transferred together to participate in the Taihang project. They became familiar with each other over time. However, Lin Zhibing, who was born as a worker, obviously did not understand these contents as well as his friend. Oh, I just listened to what Mr. Chang introduced and I have some thoughts. I think it can be used in our work over there. Zhou Lianhong answered with his mouth, but the pen in his hand never stopped: "Isn''t Bingcheng Aircraft Group been anxious for a higher power engine in the past two years, for the Z-9 carrier type, I have some ideas, just Write it down quickly." Southern Aviation Power Machinery Co., Ltd. in Jianning is mainly responsible for the R&D and manufacturing of turboshaft and turboprop engines. Of course, these two types of aircraft engines with output shaft power are different from turbofans in many ways. For example, the compressors are both axial flow and centrifugal hybrid structures, but they are always the same in terms of the most basic thermodynamic principles. Hasnt the Turboshaft 8E been delivered to them? ?Lin Zhibing was stunned. Its not enough. The Turboshaft 8E needs take-off power to keep the Z-9 in a hovering state in combat, but the take-off power can only be used for 5 minutes at most. Its okay for transporting people, but its definitely not enough for anti-submarine warfare. Zhou Lianhong shook his head and replied: "So now we are walking on two legs. On the one hand, we are considering introducing the newer Arriel 1M1. On the other hand, we are also striving to improve ourselves on the basis of the turboshaft 8E. After all, foreign exchange is limited and the French ask for high prices. Its not an option to always look for them The whole morning meeting agenda came to an end quickly. The leaders did not understand the specific technical details and had other things to do, so they would leave Shengjing one after another at noon. But the expert team will still have to stay for another two days. ?Although everyone is not confident enough to review the Turbofan 10 now, even from a long-term perspective, this process must be completed. During the break after lunch, Jiang Fuhe found Liu Zhenxiang alone. Old Dean, in this situation, our institutes high-profile pre-research project...the next step..." He was indeed a little panicked. ??Your "pre-research" progress is slower than other people''s officially approved models, so you still need to do pre-research. ??However, the funds for developing R79 technical data were raised by 624 itself. If this pre-research project does not go forward, it will definitely suffer a loss. ??But if you bite the bullet and continue to do it, the sunk costs will only get bigger and bigger... My suggestion is to change the focus of research. After all, Liu Zhenxiang has worked in the 624 Institute for decades, and he still understands the basic situation of the old unit. ? Judging from Chang Haonans incredible ability, since he has left room for upgrades in the core machine of the Turbofan 10, it is definitely not a lie. Breakthroughs in materials and processes will of course be much slower in comparison, but in terms of difficulty, it is not that high. As long as enough resources are invested, many things will come naturally. By then, this 3.75-generation engine will naturally evolve into a serious fourth-generation engine. ? Judging from the capabilities of 624 Institute, it can be said that it has caught up from behind in core aircraft research and development, and has pushed the improved turbofan 10 out of the position of the fourth-generation aviation engine... It is indeed that difficult. ?Then we can only avoid its edge. Transformto where? Jiang Fuhe couldn''t keep up with Liu Zhenxiang''s thoughts for a while. For large-thrust engines, judging from the current situation of the Taihang project, there should be no need to continue working on this line. The latter had no choice but to further explain: But the power system of the R79 can also take off and land vertically. I have seen the design of the three-bearing rotating vector nozzle above. It is quite advanced. You can work hard in this direction next..." "this" The idea of ??vertical takeoff and landing power was indeed something Jiang Fuhe had never considered. ?Mainly based on the strength of China Aviation Industry in the past, it is very difficult to even copy a Harrier, let alone the Yak 141. Furthermore, the performance of vertical take-off and landing aircraft is bound to be far weaker than ordinary fixed-wing aircraft of the same technical level in all aspects. ??For the Chinese Navy and Air Force, which have not even completely retired first-generation fighter jets such as the J-6, it is unlikely that they will rush to pour a large amount of resources into this field. But the past is the past and the present is the present. ? ? If you want the R79s technical data to continue to shine, Im afraid this is the only way to take an eccentric approach. (End of this chapter) Chapter 478 What, you want to change the national military standard again? Chapter 478: What, you want to change the national military standards again? ?Things have come to this point, and there is nothing to worry about in the next part. In fact, during the next day and a half of the review process, there was neither review nor review. It almost became the final Q&A venue. All in all, the scene was very exciting. ? No matter what, the design review meeting of Turbofan 10 ended smoothly. Xiao Chang, this is the most tiring but also the most relaxing review meeting I have ever had. Liu Zhenxiang, who had already signed and had some sore hands, put down the last piece of information, screwed on the pen cap, picked up the tea cup with his other hand and took a sip, and then said to Chang Haonan who had just walked down from the big podium: "In those review meetings in the past, we actually couldn''t discuss too many details at all. After all, it only lasted two days. In addition, the first half of the day was mainly to get familiar with the entire project and materials. There were still many issues to debate in the middle. Sometimes, by the end Its almost like a fight. ?His tone was quite relaxed. After a pause, he continued half-jokingly: But this time you opened my eyes. In this question and answer session of Teacher Chang, no less than fifteen specific technical questions were answered in one afternoon. The efficiency is amazing. ??More than 90% of the whole course was delivered by him alone, just like his old mother giving a public class. After two days, his throat was almost smoking. Yes, my brain is tired, but it saves worry and energy. Think of it as welfare. Although the logistics expenses of the 606 Institute and the 410 Factory are the same as those of the 112 Factory, they have increased a lot due to the emergence of a large number of orders. However, after the start of the Turbofan 10 project, personnel were stationed all over the country, resulting in an even greater increase in the burden. The food is so good that you can''t even go hungry. The dozen or so expert panel members collectively said the remaining 10%, with an average of less than 1% per person. Another expert who was also packing things next to him also took up the conversation and concluded in more concise language. Of course it saves effort. ??Although Chang Haonan himself really doesn''t feel the need to celebrate, after all, it is the Shengjing Military Region that is the host. He is not needed and he does not need to contribute money from the project funds. It is not easy to refuse too forcefully. Furthermore, even if he and other review experts had no shortage of food and drink, for ordinary scientific researchers who had come to gain experience, this kind of food and drink session was still very attractive in the late 1990s. Including the attendees who listened to the report throughout the whole process, a higher-than-usual dinner was also arranged. But the turbofan 10 definitely does not need the rear one. We are just a little more prepared and have prepared countermeasures for many high-level questions from experts in advance, so the whole process may be smoother..." ?At noon the next day, Li Liangxin said that the Military Region Guest House had prepared the venue in the evening, and asked the comrades attending the review meeting to appreciate it. ?Of course, the final celebration feast is indispensable. The two seniors were joking. It was a review meeting. They discussed and made progress together. Whether it was an argument or harmony, it was all for the smooth completion of the project. Actually, Chang Haonan also found this review meeting to be a head-scratcher. In fact, generally speaking, the design review meeting does not end just once. It may include preliminary review, re-examination or even three or four reviews. ?But you still have to be modest: ?Most of them are just one or two sentence questions. There is water to drink between questions. ?After handing over relevant documents and materials to confidential personnel for preservation, everyone left the auditorium in a mighty manner, preparing to go to the location Li Liangxin had mentioned before. ??It is also in the military compound, but it is not the same place as the agency canteen where we had meals in the previous few days. On the way, Chang Haonan found Liu Zhenxiang again and told him what he had been thinking about for the past two days. Academician Liu, I think there is still some room for improvement in the implementation of the design review process. Design review used to be the responsibility of the General Staff Department, but now it is the responsibility of the General Armament Department, so it doesnt matter if you tell Liu Zhenxiang directly about this. But the latters reaction was quite beyond Chang Haonans expectations: You feel this way too? Obviously, Liu Zhenxiang, who has participated in more design review sessions, has similar feelings. ?However, at their level, just discovering a problem is just a blessing. The key is that you have to come up with a more effective way to solve the problem. So Liu Zhenxiang only talked about this matter with a few colleagues with good relationships in the past. This includes neither Du Yishan nor Chang Haonan. "Um" Chang Haonan nodded: Actually, I had this feeling when I was looking through some research materials and project files before, but it was never very intuitive. After personally participating in a design review this time, I got a lot more ideas. After hearing this sentence, Liu Zhenxiang hesitated: "This review of your project is indeed...a little different from normal situations. It''s not very good as a reference..." Generally speaking, even if the person in charge of the project is very high-level, the review meeting will be like a Zhuge Liang meeting at best. , everyone can find and solve some problems by working together. ?This kind of meeting that turned directly into a class probably only happened in the early days of the founding of the People''s Republic of China when we were building two bombs and one satellite. But Chang Haonan has obviously fully considered this issue: I think its the difference and contrast that makes it more valuable. "How to say?" Liu Zhenxiang also became interested now. Some time ago, I specially summarized several projects that I have participated in during this period, and found that about two-thirds of the problems discovered during the design process, and even during product production and use, were introduced from the design stage. Therefore, when focusing on product quality, we should start from the source of the product life cycle. But further away, for these projects after the mid-1980s, the design review process of each one is almost different. Especially for some projects that require multiple reviews, the number of people participating in the same model project meeting may not be fixed, resulting in inconsistent focus and inspection content of the review project by the participants, failure to pay attention to issues of concern, and repeated issues. , these will greatly affect the review effect. "Also, take this review of the Turbofan 10 as an example. The review requirements conflict with the confidentiality requirements. Except for you and a few experts, most people saw my information for the first time when they arrived at the review site, and then immediately Lets just enter the review phase. In this way, the first half day or even one day will actually not be effective, but this period of time is still the most important..." ?Chang Haonan said several things in succession. And very specific. A simple summary is - Turbofan 10 has gone well so far because of me, but it wont be the same for every project in the future. It''s just a bit more euphemistic. "So, my suggestion is to issue a national standard for project review, at least military-related project review, to standardize things that were mainly based on experience in the past, so that in the future, even some small projects undertaken by low-level institutions can be standardized. Its not like it would be a mess without the control of senior experts. Standards actually dont matter to people like Chang Haonan. But it is of great significance to the overall industrial development. Because it can guarantee the lower limit. ?This proposal surprised Liu Zhenxiang: Are you trying to change the national military standard again? ?Chang Haonan first attracted the attention of the Science and Technology Commission at this level because of the previous reconstruction of aero-engine testing standards. Although in terms of workload, more than 90% of the content was later completed by Liu Zhenxiang and researchers from the 624 Institute. But if we look at the importance of the work, then Chang Haonan alone accounts for at least 70% to 80%. Liu Zhenxiang was also a little curious. Generally speaking, young people in their twenties, especially young geniuses, probably dont like to follow rules the most. But the person in front of me seems to especially like to set standards... Chang Haonan quickly waved his hand: You cant talk nonsense. I dont have the authority to directly change the standards. Im just making suggestions... As a result, he was interrupted by Liu Zhenxiang in the middle of the sentence: Okay, I dont need to pretend anymore. If you put your suggestion forward, there is at least a 95% chance that it will be passed, not just 10% but 95%..." Tell me how you want to change it, and I will find a few more people to sign after you. ??If the probability of Chang Haonan''s proposal passing alone is 95%, then after adding in some other heavy-hitting names, this probability is basically infinitely close to 100%. The main ones are three. After getting the support he wanted, Chang Haonan stopped being polite and directly expressed his thoughts: First, establish a review expert database corresponding to different levels and majors to ensure that the personnel are relatively fixed. "The second is to reasonably determine the design review time based on the type and importance of the project to be reviewed. In particular, it must be clear that the design review materials for major nodes of large and complex equipment are provided to the designated location by the unit being reviewed, and the design review experts will review them within a relatively sufficient time period. Carry out cross-checks and reviews to ensure good review results. The third is to learn from the quality management system audit model and method, implement the design review checklist, standardize the review content, and ensure that the results are traceable. Liu Zhenxiang did not give an answer immediately. He was obviously thinking about these three items from Chang Haonan. But after thinking about it, I didnt think of anything else that could be added. It wasnt until he was almost at his destination that he raised his head again and looked at Chang Haonan: "Let''s put these contents into written form when you have time, but remember to use tactful wording, especially the title." In this regard, Chang Haonan is naturally very experienced and has already prepared the draft: How about calling it Thoughts on Improving the Effectiveness of Design Review? (End of this chapter) Chapter 479 Chinese enterprises “go global” Chapter 479: Chinese Enterprises Go Global woc, the environment is good... ?After walking into the seemingly ordinary building, Chang Haonan was also slightly surprised by the layout inside. ?But if you think about it, its normal. By this time in 1997, although some military enterprises had begun to be rectified and merged, it had not yet reached the point where "the military was not allowed to do business", so the military region level was still relatively wealthy. In the 1980s, the troops even had problems eating, and self-reliance was a no-brainer. It is similar in nature to the previous settlements. However, as the military expenditure situation has gradually improved in recent years, and with the increasing income from business, this money has become relatively hot to hold on to. Eating and drinking are still a matter of style, but most importantly an economic issue. But if you use the money you earn to buy equipment... So I named it by my nickname first. is considered a nickname. The first speech was naturally given by Li Liangxin, but he also knew that everyone did not belong to the same system, and there was no affiliation. Talking too much would be annoying, so he just said a few polite words. The QC130 is the power model of the turbojet 14 aeroderivative. The 130 represents 13 megawatts of power (about 18,000 horsepower). The two units combined are enough to propel a 4000-4500 ton frigate. Hasnt the aeroderivative gas turbine...QC130 engineering test machine been handed over to the shipbuilding industry? However, due to a series of standardization operations initiated by Chang Haonan last year, the entire power field, including gas turbines, is also moving towards naming standardization. Whats your name? By the way, why didnt Mr. Yan come this time? I remember he was on the list at the beginning? ?Other than Chang Haonan himself, Yan Zhongcheng can be said to be the only chief engineer in the country who has been responsible for the development of Type 1 aviation development. The QC130 has indeed been delivered, but Huaxia Petroleum Company has urgently invested in a gas turbine project for power generation. The funds are sufficient, but the prototype is required to be delivered before the end of this year..." In fact, he has wanted to ask this question for a long time. According to past habits, the names of aeroderivative gas turbines are usually simply and crudely added with letters, such as turboprop 6G and turbojet 5G. Of course this is the name within the aviation industry. After three rounds of wine and five dishes, Chang Haonan asked Hai Yide who was sitting next to him. ?Chang Haonan really hasn''t spared the energy to pay attention to the situation on the gas turbine side recently, but everyone works in the 606 Institute, and I have heard a few words about it. "Hey, I was originally planning to come here, but some time ago, there was a new demand for aeroderivative gas turbines, and this time the demand was particularly urgent. Their entire project team has been working in two shifts recently, and they really can''t get rid of it. body." Now that I have not participated in the Turbofan 10 project, I have no concerns about reviewing myself. No matter how I look at it, I should attend as an expert. But so far, no final conclusion has been reached. But his cheeks hurt when he talked in the past two days, and he had no desire to speak as soon as he got off the podium, so he didn''t think about it again until this moment, after everything had settled. In short, using it to build a building is the safest way to use it. Havent gotten up yet. Haiyide shook his head: He originally thought that it would be a little easier to engage in aviation diversion, but now he is busier than us in Taihang. Before, Lao Yan told me that he was working hard, and he would go anywhere day and night..." Although there will not be a very big difference in the core structure between power gas turbines and power generation gas turbines, many design calibrations still need to be changed due to different application scenarios and fuels used. Where in the country are they so eager to use gas turbines to generate electricity? Huaxia Petroleum shouldnt have an offshore platform, right? Hearing the other party''s answer, Chang Haonan was a little curious. Generally speaking, offshore oil platforms are limited by space issues and will prefer compact gas turbines, which have always been imported in the past. Although the best solution for onshore oil fields is definitely gas turbines, there are always other alternatives. Not for domestic use. Haiyide said as he scooped up a piece of lion head with a spoon and put it into his bowl: Huaxia Petroleums oil reserve-to-production ratio has been getting lower and lower in recent years, so it is eager to explore overseas markets. This gas turbine seems to be used in a Huasu Petroleum cooperation project. Not later... ????Chang Haonan was immediately confused: Who to cooperate with? OhSu refers to Sudan, not the Soviet Union ?Hayide also quickly realized the ambiguity in this passage and explained with a smile. Thats a bit too hasty. Before the end of this year... we cant build the oil field equipment in just a few months, right? In fact, Chang Haonan has no direct connection with the oil industry, and he didn''t really expect to get any useful information from the other party. ??Its just that at the dinner table, you have to find something to brag about. Think of it as oral gymnastics. However, I did not expect that Haiyide has been immersed in state-owned enterprises for many years. Even if it is not about the system, he actually knows a lot: The oil field itself started construction in 1995, but recently General Electric suddenly refused to export gas turbines to this project... "General Electric" Chang Haonan was also convinced: Maybe they are worried that we will use this project to use gas turbines on warships... ?Similar to the aeroderivative combustion of the turbojet 14, the LM2500 series gas turbines are not the only marine models. Theoretically, gas turbines for power generation are not included in the list of export restrictions. But theory belongs to theory and practice belongs to practice. ??The United States has suffered such a big loss in the Boeing-McDonnell Douglas merger, and it is impossible to give up the Chinese market for this matter. It will definitely do something to disgust you. Originally, it was possible to turn to Siemens for procurement, but their actions there were too slow. They said the goods would not arrive until 1999, and there were still a lot of conditions attached. Later, Huaxia Petroleum urgently switched to domestic procurement..." This is also a big problem for imported equipment. Be it machine tools, gas turbines, or even communication equipment servers. Whether it is production or maintenance, the cycle is too long. ?For many large-scale enterprises, they can actually tolerate spending more money, but it would be too bad to have to stop operations at every turn. So many times, even if the performance of domestic equipment is slightly worse, it can always squeeze out some markets. We started building oil fields in 1995... so Huaxia Petroleum moved very quickly... ? around 2010, Sudan did briefly become China''s main crude oil supplier, but Chang Haonan did not expect that China Petroleum would go to sea so early. And this happened to be a direction that he was very interested in. After all, Torch Group must have overseas business in the future. Thanks to the relationship with Jinling Automobile, even the advertising space has been prepared. Does the country now have any policies for companies to go overseas? I dont know about this. Our foreign cooperation policy in the aviation field is the unified responsibility of the head office level and has nothing to do with secondary enterprises like us. ?Hayide shook his head. After he lowered his head and ate his food again, he suddenly remembered that although Chang Haonan had been working with them, strictly speaking, he was not considered a person in the aviation industry system: Oh, Comrade Haonan, you are also in charge of a state-owned enterprise in the Academy of Sciences system, right... Yes, a small company, just starting out. ?Chang Haonan nodded and waved his hand to signal Haiyide to keep a low profile: Some foreign companies are now contacting us and want to become users of our main products. However, due to policy issues, they can only be used domestically through the establishment of joint ventures. Is this... The experienced Haiyide will naturally not believe Chang Haonan''s nonsense about a small company that has just started. Although TORCH Multiphysics has a small number of users, they are all large research institutions and state-owned enterprises. It is not making money now because it is still on trial. In the first period, you can make money in minutes when you switch to the official version. If you want to know more about issues related to going overseas, you can consult the Ministry of Foreign Economic and Trade Cooperation, they are in charge of this area. Even if there is no unified policy at the national level, with your relationship with Comrade Haonan, it should not be difficult to get the authority to deal with special matters... (End of this chapter) Chapter 480 Domestic turbofan 9! Chapter 480: Domestic turbofan 9! The design review of Turbofan 10 was successfully completed, which means that the entire project has officially entered the research and development stage. At the same time, the technical verification work in production and manufacturing has not stopped. In the technical room of Factory 410, a group of engineers were standing or sitting around several computers, looking at the 3D models on the CRT monitor screen. In 1995, the localization rate of WS9 reached 70%, marking the end of the four-year localization project of WS9 engine materials. At the time, it seemed that the remaining 30% was difficult for Factory 430 to solve on its own in a short period of time. Fortunately, in the following two years, Haojing was not in trouble. ??In addition to linking up with Chang Haonan and the 410 Factory through the Seiko Project to become the technology verification model of the turbofan 10, the most important achievement is to digitize the original design of the Sibei MK202. ?Of course, this is also a request that Chang Haonan put forward at the end of last year. ?There are so many design documents related to the Type 1 aero-engine that if they were all presented on paper materials, they would probably fill several filing cabinets. As the person who knows the situation of Turbofan 9 best in the country, he was naturally drawn into the Turbofan 10 project team. ? And it is almost inevitable that loss or defacement will occur during this process, and then it will be a mess again. ??To transfer this amount of physical data from Haojing to Shengjing is definitely a huge project. Its not that they have any prejudice against Factory 430. ??As the most advanced aero engine that China Aviation Industry had ever come into contact with at that time, some technical details can still be remembered even after more than ten years. Its just that so far, most of the work is still done by the old guys: Are you sure...that you have digested it thoroughly? ?Yang Qing showed a somewhat worried expression: "The first one is to change the floating ring sealing device at the high-pressure turbine bearing to a grate sealing device. This is mainly to prevent the lubricating oil at the sealing ring from coking, causing the floating ring to become stuck and unable to move, and ultimately causing the floating ring to become stuck. Grinding against the shaft creates a gap for oil leakage, and the second one is..." When Sibei was introduced, the original plan was to localize it in Shengjing. However, at that time, the 410 Factory was working on the turbofan 6 with the 606 Research Institute, and they were worried about being affected, so they did not take the job. ?Although the explanation is clear and logical, it is obviously not very convincing. Although the other people next to him did not directly question it due to their personality or qualifications, judging from their reactions, they probably had similar thoughts. Design modification So Factory 430 spent most of this year moving most of the technical data to computers. Hissthe design of your turbofan 9 seems to be a little different from the previous SPEI MK202 Indeed, this version has been modified and some unreasonable parts of the original design have been optimized. He said and pointed to the screen of a computer in front of him: An old engineer from the 410 Factory touched his gray temples and said hesitantly. But there are still many technical personnel who have inspected this model. ?This engineer named Yang Qing is one of them. Zhang Zhenhua, director of the technical department of the 430 factory, nodded. ??But something similar happened during Sibeis imitation process In the mid-1980s, when Factory 430 wanted to convert the ship''s gas turbine to a combustion engine, it did not do enough analysis and testing on the original model of the aerodynamic design of the high and low pressure compressors, and ignored the interaction between the flow path of the ship''s gas turbine and the aircraft. The difference in engine speed almost caused a major accident. ?This was not the end of the story. Later, they even started testing the complete machine first, and then tested the components, which was a ruthless activity that could make peoples eyes darken. As for the result... Although Sibei Gaifan theoretically completed the appraisal test, the test time of the complete machine from 1990 to 1993 was only about 60 hours, which was really unconvincing. In addition, there were no installation targets, and the localization rate could not increase, so we had to Let it go. In short, it is reasonable for Factory 410 to be uneasy about these peers. ?Zhang Zhenhua scratched his head in embarrassment. ?Although he himself was not involved at the time, he must admit that his own unit had indeed done a lot of bad things in this regard in the past. Fortunately, he has already thought about how to face such doubts: These modifications were not made by ourselves. When we came to Shengjing for a meeting at the end of last year, Mr. Chang helped us point them out. No one answered the call. ?However, Zhang Zhenhua clearly heard a sigh of relief.?????Neat and uniform. This explanation is obviously quite convincing. ?Of course, we are all serious technicians, and it is impossible for us to just hear the name Chang Haonan and pass by. So he spent another ten minutes explaining in detail the reasons for making these improvements. So, what are the main technical difficulties we need to overcome this time? Despite the technological accumulation of the turbojet 14, the research and development of the turbofan 10 is also advancing at a high speed, but just like it takes time for students from 985 universities to go back to do junior high school or even elementary school exam questions, it is necessary to localize the turbofan 9 Increasing the efficiency from 70% to 100% is definitely not an overnight process. "three aspects." ??The speaker this time was Lin Weiguo, the technical director of Factory 410. After Zhong Shihong was promoted to deputy general manager, he was urgently transferred back from Persia to participate in the Taihang project. The first is to replace the materials of the 1-7 high-pressure compressor disks, shafts, 1-8 spacers and related transmission parts with domestic 2Cr10NiMoVNb steel. In the process of organizing the production of turbojet 14, we assisted the steel companies to complete the Control of delta-ferrite content in this material. The second is to improve the forging process of low-pressure compressor discs and blades, using hot die forging in the + phase zone at 900C. ?These two pieces of content are logical and can basically be regarded as the mission settlement rewards after the Turbojet 14 is successfully finalized. Subsequently, Lin Weiguo took out a picture from his briefcase and clamped it on the drawing board behind him. The third step is to replace all four sets of spindle bearings with corresponding domestic models. Fuzhou Bearing Group will be responsible for the production of the bearings themselves, but for us, we need to integrate the bearings and the entire support structure in advance before final assembly. , become the same spindle connection component. This already belongs to the category of design improvement, and is actually completed by 606. Its just that the designer over there went to the review meeting today, so he couldnt get away. So in order to explain the situation easily, he specially printed a drawing and brought it over. In this case, if you want to remove the bearing, you have to disassemble the entire engine. ??Yang Qing, after all, has rich experience and knows Sibei relatively well. He was the first to see the clues: Butit can indeed reduce about 100-120 parts and about 25 kilograms of weight. It should be said that Spey MK202 is indeed not a very advanced engine. Especially for China, which has successfully implemented the finalized turbojet 14 on this timeline. ?Its only advantage may be that it has very low fuel consumption, but that comes at the expense of a medium bypass ratio. ?According to national standards, this engine with a thrust of just over 9 tons has a dead weight of 1842kg, which is heavier than the F110 and AL31F. Considering that even if this old-fashioned core machine is pressed to the limit, the thrust will hardly exceed the 10-ton mark, so the best way to improve the performance of the domestically produced model is to increase the weight. In addition, reducing the number of parts will also help reduce the failure rate. So this is one of the technological trends of the fourth generation engine. ?For example, the number of components of the EJ200 engine is only about 65% of that of its predecessor RB199. The trade-off is that it may be difficult to repair if it breaks down. This is a bearing we developed using the latest technology. It is produced according to the standards of the third-generation engine, that is, the turbofan 10. The expected life is not shorter than the first turning cycle of the engine. ?Lin Weiguo tapped the drawing board lightly and explained, That is to say, under normal circumstances, only the entire component needs to be replaced during the overhaul process, and there is no need for ground crews to disassemble it for maintenance or repair. So... our turbofan 10 will also use this technology? Another person asked. ?Everyone knows that improving the Turbofan 9 is just a casual step, and these high-end technologies will eventually be implemented in new models. General Manager Changs goal is to control the number of components of the turbofan 10 to less than 2,200, while the current turbojet 14 has about 3,150 components. ?Lin Weiguos answer was concise and concise: I did some calculations before. If this round of testing passes successfully, the localization rate of Turbofan 9 will probably increase to about 92%. After all, after all the main bearings and high-pressure compressors are domestically produced, there is basically only the last hard nut left, which is the turbine. This part will have to wait for a while to verify the domestic third-generation nickel-based single crystal materials. He put down the pen in his hand, turned around again, and looked at the colleagues in front of him: According to the timetable, the domestically produced turbofan 9 will probably be put into complete testing in the middle of next year! (End of this chapter) Chapter 481 The confused British Chapter 481 The British at a loss The acceleration of the localization of turbofan 9 will of course have the most direct impact on the Haojing Aircraft Industry Group. In fact, since a few years ago, the Navy and Air Force have been hoping to equip improved models of the JH-7. ??However, all the SPEI MK202 engines in stock have been installed on current aircraft, and a batch of stock engines and parts purchased from the UK have basically been used for intermediate repairs. So despite the improvement plans one after another, Chang Haonan even came up with a "half-step electric warfare saint" such as the JHD-7, but there was no way to put it into mass production. The JH-7 is indeed not as advanced as the J-10/J-11, the two third-generation aircraft, but for the aviation units currently equipped with a bunch of J-6s, there is really nothing to choose from. It can fly nearly 4,000 kilometers, can go supersonic, and can also launch anti-ship missiles from a relatively safe distance. In some improvement plans, it can even perform a cameo role in air interception missions. ??What else do you need a bicycle for? So after the turbofan 9 is fully domestically produced, a large number of orders will inevitably fly to Haojing like snowflakes. ?However, it was someone else who was most affected. Although it is not yet October, this kind of notice is definitely better served as early as possible. But this definitely does not include the two people who are looking sad now. ?The content of the document is not complicated, that is, it routinely requires company personnel stationed around the world to prepare and submit work reports for a full year. ? A few years ago, he was responsible for the model adaptation of the AE3007 engine and the ERJ145 passenger aircraft in Brazil. It was also a job with a small but lucrative job. ?More money and less work, everyone likes it. But the problem is that their work is too little. After stumbling along the way to increase the localization rate of SPEI to 70%, Factory 430 also knew that continuing like this was not an option, so in the name of Haojing Aviation Engine Group Co., Ltd., it established a partnership with Rolls-Royce, the old owner of SPEI MK202. Royce formed a joint venture. Each party invests 50% and is responsible for the production of aviation blades such as compressors and turbine disks. This years report ?George sitting next to him also shook his head: The slightly younger Adam raised his head and asked the more experienced George next to him. Its hard to deal with... This matter will start from 1995. ? George Brin and Adam Whittle were sitting solemnly in a conference room on the top floor, looking at a document sent from Rolls-Royce headquarters. ?? Xujiawan, Weiyang District, Haojing City. After all, the annual workload of some large branches can be summarized in one or two months. Coupled with the writing techniques used by the British when writing reports, a quarterly notice in advance is not an exaggeration. The latter has worked as a foreign engineer in several countries and is a first-rate veteran in dealing with water reports to his superiors. In a three-story building that had obviously just been completed. The two of them were posted to China from the UK in November last year. When I worked in South America before, I always had something to write about, but this year we did... almost no work at all..." For the British, although Spey is a military engine, it is not a top product like the EJ200 after all. This model has basically no value to themselves. Now that they can recycle the waste and sell the products and technology to make a final profit, Rolls-Royce will naturally not refuse. For China in 1995, even the technology that the British did not want was quite valuable. Although they knew that the price the British asked for was a bit of a trap, there was no other way. It hit it off at the end. It only took less than a year to complete all the procedures required in both countries before the joint venture was established. ??This company also simply and crudely took the first words of the two companies and called it "Siro Aviation Parts Co., Ltd."... According to the original plan of the British, the last 30% should be a steady stream. First, the whole piece would be exported directly through the Ciro Company, and then the technology would be gradually transferred. This would last for five or six years, squeezing out the last remaining value of Spey. . ?Two business managers, Adam and George, were sent here for this purpose. There were more than a dozen other engineers who came with the two of them. At the beginning, everything went exactly as they expected. In the last two months of 1996 alone, China purchased more than 50 sets of turbine disks and high-pressure compressor components, and sent about 50 engineers to join Ciro to receive corresponding technical information. Then There''s no after that. In the past nine months of 1997, although the two people could still receive high wages from both China and the UK, they seemed to have been forgotten by the world. Dozens of experienced engineers were removed and replaced with a similar number of guys who looked like they were interns. As for the procurement of components, there is no further details... ?This is obviously not a good thing for Adam and George who carry KPIs on their backs. ??Although catching fish is fun for a while and always feels good, Luo Luo obviously will not always be taken advantage of and support two useless people. Adam, we have to do something. ?George learned from the experience and felt that he could no longer continue to degenerate like this: Otherwise I reckon well lose our jobs next year, or at least be recalled to the UK. ??The two of them can only be regarded as ordinary middle-level employees with some qualifications at Luoluo headquarters. After get off work, they have to deal with all kinds of household chores, so naturally they are not as comfortable as they are here in China. ?Not to mention the amount of money they receive, as senior managers assigned by foreign investors, they actually enjoy a lot of benefits. ??Definitely not willing to go back. But the money is in the pockets of the Chinese people, and they dont take it out, what can we do? ?? Adam naturally knew the seriousness of the matter, but the Siro company made it clear that it was the dumplings wrapped in vinegar for Sibei. Now there is something wrong with the vinegar, and naturally no one cares about the dumplings. First of all, we need to figure out why they have this change. It was obviously not like this last year. ?George lit a Marlboro, put it in his mouth and sucked hard: Even if the Chinese came up with an aircraft engine with quite good performance last year, the Spey is a completely different model after all, and its not that easy to understand. ?This logic is generally correct. Let alone China, even if you ask the Americans or Russians to copy a Spey, it will still take several months. Perhaps they dont need this model anymore? Adam next to him immediately thought of the worst possibility: I have seen the kind of aircraft they use Spey engines. The positioning and technical level should be similar to our Tornado, but without variable sweep wings. ?George, who was puffing away the smoke, shook his head directly: Impossible, I often watch their TV news recently. The Chinese Air Force is still equipped with many old models such as MiG-19 and MiG-21. You must know that they even considered directly purchasing Tornado as a fighter-bomber. Is there something wrong with the relationship between the two countries? I heard some rumors that at the end of June this year, a fleet of the Royal Navy had some conflicts with China. Adams thinking is still not quite coherent. "Not to mention, the incident you mentioned is almost an open secret. It is precisely because of this incident that the current Prime Minister Blair was able to successfully win the election. I feel that as long as China is willing to pay, the Labor Party would like to sell the entire Portsmouth Port to them." ?Judging from George''s tone, it is clear that he is somewhat dissatisfied with the current parliamentary structure. ?However, considering the "great achievements" of the Labor Party after World War II, it is reasonable. Just saying that, although what he said was a bit exaggerated, the truth is still correct. The atmosphere in the conference room fell into silence again. How about It wasnt until George finished smoking the cigarette in his hand and put it out in the ashtray that he spoke again: Should we make some appropriate concessions in terms of price and technology transfer progress? (End of this chapter) Chapter 482 Ask Mr. Chang for his opinion Chapter 482 Ask Mr. Chang for his opinion After all, they are supervisors with a technical background, and their future job prospects are also involved, so the two people naturally moved very quickly. At noon the next day, an official letter written in Chinese and English was delivered to the desk of Ren Bingda, deputy general manager of Haojing Aero Engine Group Company (actually the main unit of Factory 430). Official documents written by the British are naturally quite long and full of long and difficult sentences that are difficult to understand even when translated. ?However, after reading the first few lines of content, the expression on Ren Bingdas face quickly changed from impatience to joy. ?After watching it from beginning to end, he seemed to be still a little bit unsatisfied, so he went back and watched it a second time. Such an action naturally aroused the curiosity of another person sitting on the sofa next to him. Old Ren, what are you looking at? Turn it over. Gao Ning, deputy director of the production department of 430 Factory. Since Zhang Zhenhua has been stationed in Shengjing a few months ago, he is currently mainly responsible for the production tasks of the entire factory. ?Of course, theres nothing actually easy to produce right now... Anyway, no matter how much or how little you earn, you will make money. I never imagined that Luoluo Company would take the initiative to negotiate terms with us... "Ah" As the leader in charge of daily business with Ciro Company, he can naturally read the meaning of the other party from the British writing habits. Negotiate terms? What terms? ?Most of the time, either others do it intentionally, or they inadvertently show condescension in ordinary communication, which makes people even more irritated. ??The index finger of Ren Bingda''s right hand flicked the edge of the page a few times, making a crisp clicking sound: Of course its the price, oh, and the timetable for technology transfer. What to finalize the component procurement plan for next year as soon as possible and update the specific content in the technology transfer list. He and Ren Bingda had dealt with the British in the past two years, and they had suffered countless suffocations. As for the Spey Engine business, the profit margin is quite terrifying. After all, to the British, these things are just some items in the inventory that are almost useless. If there was no such thing as the Ciro Company, they would probably be prepared to be destroyed. Gao Ning took a sip of tea and shook his head slightly: ??Ren Bingda said as he put the documents back on the table with a proud expression. For this reason, Adam and George have considerable say in pricing. Especially finished parts. The reason they have refused to lower prices before is because they have grasped Chinas urgent need for the localization of Sibei. Good stuff ??It''s just that the year is coming to an end, and China still hasn''t shown the need for additional orders. It''s urgent. What were you doing earlier? Its only now that I think about it and Im anxious...its too late... Gao Ning, who had just picked up a cup of tea, paused and hung his hand in the air: You have no choice anyway, even if the price is higher, the business can still be done. ?This idea was indeed correct when negotiating to establish Xiro Company two years ago, and China did accept it. But now... Times have changed, my lord. But, then again. After all, Ren Bingda was not a newbie. After the excitement of the situation was over, he quickly calmed down and started thinking about business: We do need to consider the future positioning of our Xiro Company. Positioning problem? Gao Ning was stunned for a moment: "Yesterday afternoon, I called Minister Zhang. He said that if there was no accident, it would be a complete national production of turbofan 9 improved engines in the middle of next year." , it should come to an end, right?" He started out as a skilled worker and later went to the Workers'', Peasants'' and Soldiers'' University as a cadre. His sensitivity in company management is indeed much worse. Ciro Company was indeed established to promote the localization of Sibei. Ren Bingda took out a pack of cigarettes from his pocket and pulled out two. However, Gao Ning said that he was quitting smoking, so he had to put one of them into his mouth, lit it with a match, and continued: Although there is no need to rely on the British for this model of Spey now, it would still be a pity if this table was just thrown away. Gao Ning, who was sitting on the sofa, was already in the process of quitting smoking. When he saw someone smoking, he found it difficult to control himself. He drank tea more frequently while talking: If you dont want to throw it away, then use it to train young students. Some time ago, in order to participate in the Taihang project, you withdrew the experienced old guys from Xiro Company and replaced them with dozens of young people who had just joined the company a few years ago. Didnt you also have this idea? Ren Bingda was not embarrassed when his purpose was revealed: Hey, lets squeeze out the surplus value of capitalism... ??As he spoke, he raised his hand and waved it gently to disperse the smoke that was lingering in front of his eyes: However, these two British people obviously felt something was wrong. Isnt that why they sent us this letter? Let me tell you, if its bad, its bad. Anyway, the money we invested in this Xiro Company is not too much. Now that the strong man has cut off his wrist, the loss will be less. Gao Ning still means direct cutting. But Ren Bingda waved his hand: Rolls-Royce is, after all, one of the three largest aircraft engine manufacturers in the world and plays a pivotal role in the entire aviation manufacturing field. "Although Xiluo Company is small in scale, the business scope it was approved for was very wide. It is a bridge between us and Rolls-Royce. If possible, I still hope to keep it, even if it temporarily raises a few useless British ones. People deserve it too. Actually, if it had been last year, Ren Bingda''s thoughts would not be any different from Gao Ning''s. But this year, he received a huge stimulus from his neighbor, the Haojing Aircraft Industry Group. ?Originally, everyone''s level is about the same level. Let''s not talk about food. Anyway, we can barely get enough food and clothing, and hug each other to keep warm. ??But due to a wave of cool operations at the beginning of the year, Haofei took off immediately. MA 60 has obtained airworthiness qualifications from both Europe and the United States through the Mutual Recognition of Airworthiness Agreement, and has signed a contract with Bangkok Airways, achieving a wave of export earnings. Whats even more awesome is that they also sent technicians to France to work with Airbus to transform two A330 passenger aircraft into A330AIT icing water sprayers specially used for simulated icing experiments. In the past, China hired technical personnel from Europe and the United States at high prices to guide its business. Who would have thought that it would suddenly have the opportunity to make a comeback? This is something worth writing about in a big way. ? Comparing the two, the Haojing Aero Engine Group, which is also located in Haojing, seems to be overshadowed. And Ren Bingda was naturally not content with this. Thats why I thought of stabilizing the Siro Company first. When opportunities arise in the future, I can also engage in serious technical cooperation with the British, and even reverse export! In addition, doing so will also help maintain their position in the field of aviation power. Considering that the two super large projects of Turbojet 14 and Turbofan 10 are both located in Shengjing, anyone with a discerning eye can see that other domestic aerospace development and research units will definitely be outclassed in terms of technical strength. ??But if Haojing can pave the way for international cooperation with Luoluo in advance... At least we still have some say in channels. ?Of course, its hard to talk about this little thought in public. What should we do? Gao Ning put the empty cup back on the table: "Yesterday, I heard Minister Zhang say that the 9A turbofan produced by the 606 Institute has changed many of the original designs of the Spey MK202. Even if we want to continue to pay for this, the British cannot supply it. ?Ren Bingda nodded and put out the cigarette **** with some distress: "Of course I know this, so my initial idea is to see if there is anything that we need and the British are willing to let go of, at least to maintain the business first..." In this regard, Gao Ning is even less likely to have any clue. After thinking in vain for a long time, he decided to give up: I think, why dont we talk to Minister Zhang about this matter and ask him to seek Mr. Changs opinion? (End of this chapter) Chapter 483 Only with strength can we have the capital for equal dialogue! Chapter 483: Only with strength can we have the capital for equal dialogue! "this" ?Ren Bingda lit up his second cigarette, but his smoking action was obviously hesitant: This kind of thing is our units own business after all, so why dont we alarm Mr. Chang? He is now in charge of the Taihang project, and he probably has a lot to do every day. How can he have the energy to care about a small unit like Xiro Company with dozens of people? ?This statement is of course just a casual comment. ??He has never had the opportunity to meet Chang Haonan in person. He has only heard about this famous name and related deeds from internal and public media reports, as well as various legends. ?Although there are many versions, one thing is certain. That is, Chang Haonan has a strong influence at the top level of the Science and Technology Commission. ? And his public positions involve the 973 program and the general manager of a state-owned enterprise within the Chinese Academy of Sciences system. Obviously, he can also speak to the Science and Technology Committee. ?In this case, Ren Bingda was mainly worried that the other party would deny it as soon as Jinkou opened the door. ?That leaves no room for maneuver at all. Next to him, Gao Ning and Ren Bingda have been working together for many years. Looking at the latter''s expression, you can probably guess what the other is worried about. Besides, we are not contacting Mr. Chang directly, and we cant contact him either. We have to go through Minister Zhang in the middle. He is participating in the Taihang Project in Shengjing, so he needs to know more about Mr. Changs specific situation..." "But think about it, Mr. Chang is probably less than 30 years old. He was still a student when he received the May 4th Youth Medal in the first half of this year. Even if he was a working graduate student at the time, he probably wouldn''t have much time to work. Year." ??Ren Bingda took a long puff of cigarette, his frown did not relax due to Gao Nings enlightenment: In short, I convinced myself. So I think Mr. Chang must have some abilities, but these things are probably done by his superiors in order to increase his prestige. He has done countless things... ?Seeing Ren Bingda behind the desk, he still had some concerns, so Gao Ning had no choice but to throw out further chips: You think, with Mr. Changs voice and the resources at hand, if he could help, it would save a lot of trouble... ?The Gao Ning people were numb when they heard this analysis for the first time, but for a while they couldn''t think of any strong evidence to refute it. After holding back for a while, they replied: "Even if that''s the case, then when he makes decisions, he always has to consult with his superiors and maintain his past personality, right?" "You shouldn''t worry about Mr. Chang''s attitude. I heard from an old classmate who works in Institute 603 that he was the one behind the signing of the aviation industry cooperation agreement with the European Union at the beginning of this year. And The D436 engine that landed in our factory, after McDonnell Douglas was acquired, arranged for Shanghai Airline to switch to production of passenger aircraft designed by Tupolev..." The latter did not rush back to the capital immediately after the meeting. At this time, he was writing the "Thoughts on Improving the Effectiveness of Design Review" in an office vacated by the 606 Institute. Zhang Zhenhua, who hurried over, also closed the lid of his laptop with some curiosity: ?One thing after another seems to be enough to prove that Chang Haonan is not the kind of old stubborn who is unwilling to communicate with the outside world. Of course I have heard all the rumors you mentioned. Zhang Gong, this is... Because two days later, Zhang Zhenhua, who received the request for help, took advantage of noon to find Chang Haonan. Facts have proved that the effect of painting cakes is generally good. And its very exciting. Mr. Chang, its a private matter related to our Haofa Group, so I came to bother you during non-working hours. ?Originally, Ren Bingda was just guessing, but after reasoning like this, the more he said it, the more reasonable it became. ?The other party was obviously a little anxious, but if it was something related to the project, Zhong Shihong or Hai Yide should have called him long ago. At this point, he hesitated again, but considering that Gao Ning and he also had a life-long friendship, he finally said it: A young man suddenly appears, and so many decisions related to the direction of the industry are related to him... Is this reasonable? This is unreasonable. ?Zhang Zhenhua said and put his hands on some of the information he had compiled on Chang Haonan''s desk. ??It was naturally impossible for him to come over and report to Chang Haonan in vain, so after receiving a call from the group yesterday, he compiled the general situation into writing that night. This is the portion he brought over today. Since it is a matter of Haofa Group, it is not considered a personal matter, it must be counted as overtime... Chang Haonan half-jokingly pulled the information in front of him and raised his hand to motion to the chairs next to him: Mr. Zhang, find a place to sit. There is water in the box next to you. Ill take a look at the materials first Given Chang Haonan''s current position, someone would naturally be responsible for preparing hot water and the like, but he was used to drinking cold drinks in his previous life, so unless he was making tea, he usually just wanted to save trouble and just find someone to move a few boxes. The Daqing Baoquan produced in Shengjing was placed in the office and finished. In short, in Shengjing, even the King of Heaven has to drink bottled water when he comes here. ?Zhang Zhenhua quickly took out a bottle, unscrewed the cap and took two sips. ?Like most front-line engineering staff of this era, he is a heavy smoker. But before coming, Zhong Shihong specifically told Chang Haonan that he didn''t like the smell of cigarettes, so even if he was addicted to cigarettes, he definitely couldn''t smoke here. Ciro Company Before Chang Haonan was reborn, he had indeed heard that 430 Factory had engaged in technical cooperation with Rolls-Royce for a period of time. After 2010, it also helped Rolls-Royce produce many non-core parts through this channel. In a sense, Exports in the aerospace industry have been realized. But it was indeed the first time he had seen this company name. Almost laughed. ?Of course, in 1998, Ronaldo was still the active player on the football field, the Brazilian one, so he still held it in. After the brief inner drama, Chang Haonan soon became serious. The content of the material, simply put, is that Hao Jing wants to keep the hard-won foreign cooperation channel of Xiro Company, but at the moment they dont know how to operate it, so they hope to get his opinion. ?This idea indeed coincides with his recent thoughts. After all, at the celebration banquet on the day after the design review meeting, he and Haiyide discussed the matter of Chinese companies going overseas. ?With the current scale of industry that China has gradually begun to explode, it is impossible to support it solely by relying on the domestic market. You still have to earn money from foreigners. Its just that I have been busy adding to the national military standard for the past two days, and I didnt bother to go back to Beijing to ask. ?Prior to this, he indeed promoted several foreign international cooperation, such as the two A330AIT icing verification aircraft that have now started construction. ??But this is a project-driven individual case after all. ?You cant just let senior executives come forward to negotiate every companys plans to go overseas. Therefore, it is best to form channel inertia and develop a set of commercially effective ecological strategies. At the end of the material, Zhang Zhenhua also specially attached the content of the letter written by the British. After all, being able to be so proud of the domestically produced Spey is mainly due to Chang Haonan. ? ? If he hadnt listed the improved turbofan 9 model as a technical demonstrator for the Taihang project, Im afraid we would still have to beg for food from the British in the 430th game! It seems that this British man is still very aware of current affairs... Chang Haonan was really in a good mood after seeing this paragraph: In the final analysis, only with strength can we have the capital for equal dialogue! Yes, this is also thanks to your blessing... ?Zhang Zhenhua saw that Chang Haonan''s attitude seemed to be good, and he quickly blew a rainbow fart. Chang Haonan quickly waved his hand to interrupt: But in any case, under the circumstances of the past few years, Rolls-Royce is willing to do business with China, even if the price is high, it shows that they can indeed cooperate. The previous years he mentioned did not start from the introduction of Spey in 1975. As early as the end of 1961, China signed a contract with the British Vickers Company to purchase six Viscount passenger aircraft, which were still relatively advanced at the time. The power installed on them was the RB.53 engine manufactured by Rolls-Royce. To this end, the country also sent a group of technical personnel to the UK to learn the maintenance and repair technology of this kind of engine. It can be regarded as the first exchange between China and Western countries in the field of aviation technology. As an old capitalist country, the British are indeed very capitalist. As long as you dare to give me money, I will do any business. After all, this is 1997, not 2017, and Europeans still have some dreams. ThenMr. Chang, what you mean is Sibeis business is technically no longer necessary to continue. ?Chang Haonan closed the material in front of him and leaned on the back of the chair: But these two British people who are aware of current affairs still have to protect themselves. Otherwise, it will be a bit troublesome to get two die-hard opponents of China. Aware that this was a deployment, Zhang Zhenhua quickly took out a small notebook and took notes. "My personal suggestion is, first of all, the old JH-7 still needs the parts of the old model. If the price offered by the British is really sincere, then it is acceptable to buy another batch to stabilize Rolls-Royce. " "Second, we still need to make it clear to the two British people that this is not because we have a need, but because we want to help them in the past business relationship. As a condition, we need to appropriately expand the scope of cooperation between the two parties. After all, Sibei is too If they are lagging behind, let them come up with something newer. It is difficult to let go of the child and not catch the wolf. Although the ultimate goal is to achieve export, the meal must be eaten one bite at a time. Its too new a technology... Im afraid the other party wont agree, right? Zhang Zhenhua stopped writing, raised his head and asked: "Those two British people are only in the middle class after all, and their right to speak is limited..." Its certainly impossible for you to ask for a main model like the Trent 700, but you can use the sausage-slicing tactic and do it step by step. "I think Rolls-Royce''s lightweight turboshaft or turboprop engines are good. The technology is very advanced and not so sensitive. It happens to be a blank in the country. We can''t spare the manpower and energy to specialize in it for a while. It''s totally possible to talk about it. Lets talk! (End of this chapter) Chapter 484 A positive example Chapter 484: Set up a positive example For a long time, the aero-engine field has practiced model traction, which is the principle of simply treating the engine as an aircraft component. ?At a time when the aviation industry had just been established from scratch and was dominated by imitation and license production, this model was indeed conducive to concentrating the already small resources and conquering the production of key models in a short period of time. However, as Chinas technological strength gradually improves and moves toward independent research and development, the shortcomings of this approach are gradually exposed. The most important thing is that each R&D unit, and even different models of the same R&D unit, work independently, with almost no technical connection. ??Each aviation development project starts from scratch, and may be abandoned at any time due to the loss of installation targets. Naturally, the research and development efficiency will not be optimistic. This kind of approach cannot be tolerated even in countries such as the United Kingdom, the United States, and the Soviet Union. Coupled with the weak foundation and low investment in the aero-engine field, there is a large gap in the domestic aero-engine model spectrum. The drawbacks brought about by model traction were quite far-reaching, and they even lasted until Chang Haonan was reborn in his previous life. ?For example, Coach 10, which seems to be better than Coach 9 in every aspect, has been plagued by insufficient engine supply for a long time. ? ? Its supporting domestic model of the benchmark AI222-25 engine, the turbofan 17 "Minshan", has gone through many ups and downs, and has never been able to achieve installed capacity and mass production. ? Technically speaking, this small-thrust turbofan that does not even have an afterburner is not complicated, at least it cannot be more difficult than Turbofan 10 and Turbofan 15. After all, the talent team has a training cycle. ?However, due to well-known reasons, Ermao suddenly and completely lost the ability to continue producing AI222-25 a few years later, causing the production and service progress of the Coach 10 to be affected. ? ?The reason why it has been delayed is largely because under the "model traction" mode, even a small push has to be built from scratch (for example, the mapping of the turbofan 11, which is a copy of the AI25, took 10 years). So Zhang Zhenhua was a little confused at first: ?However, Chang Haonan didn''t notice it and just continued to explain: Besides, you also know that what we have been studying are axial flow engines, and these lightweight turbine shafts and turboprops generally use axial flow and centrifugal series connection, which is inconsistent with our current main attack direction. Faced with such a direct question, Chang Haonan could only "polished" the reason a little: Gong Zhang, I am not a **** after all. My energy is always limited, and it is impossible to be involved in all models and projects. If we can complete our countrys 300kw engine model series at a relatively limited cost, it will also be a great help to the development of our countrys aviation industry. ?Of course, it is impossible for Chang Haonan to express this thinking process openly. ??As for a training aircraft and several large UAVs whose total output may not exceed double digits, whether it is necessary to go through such a process has become a very tangled question. ?A series of large high-altitude jet drones can only choose the turbojet 7 without the afterburner as power. Zhang Zhenhua has worked at the 430 Factory for nearly twenty years. Although he is dissatisfied with the current situation of "model traction", when it comes to analyzing specific problems, path dependence is still unavoidable - In 2016, when it was finally decided to abandon the turbofan 17, this choice seemed to have no problem. But Mr. Chang, we dont seem to have a model that requires an engine of this level right now? After saying this sentence, Zhang Zhenhua''s face already showed an indescribable expression. Although Chang Haonan has started to change this situation nearly twenty years in advance, it will take some time, and judging from the current situation where more than half of the country''s efforts are required to build a turbofan 10, it may be difficult to achieve it in the short term. Extra effort is devoted to those non-key models. ?That basically means "Are you not considered a god?" Mr. Chang, we are already developing high-thrust third-generation turbofans, so why should we introduce lightweight turboshaft or turboprop engine technology? Hence, he subconsciously believed that it would be difficult to install an engine without an installation target. ?This question gave Chang Haonan the opportunity to express his further thoughts: In fact, 300kW class light turboprops should be installed soon. One is a new primary trainer aircraft that will definitely be needed after entering the new era. Although the Chujiao 6 is a classic, it is already a model nearly forty years ago and is no longer able to meet the flight training needs of the new era. The other one is the long-endurance integrated surveillance and attack drone that Chang Haonan has talked about with Guihang Industry before. In the past life, China suffered a lot in the power of drones. It could only choose to import and produce a low-power piston engine from Austria, which delayed the development of many models. Many businesses, especially those in technology, were much easier to do in the 1990s than they were twenty years later. ?However, Chang Haonan did not talk about these things. First of all, Zhang Zhenhua is not at a high level, so it is difficult to talk too much about matters related to aviation industry planning. Secondly, Chang Haonan felt that at this critical moment, he needed to set an example. A typical example of "the engine was launched without an adapted model and later became a success". Just like the fact that the factory raised its own funds to develop aircraft, it was only after Hongdu developed the K8 training aircraft and achieved great success that it was gradually accepted by the entire aviation industry system. Now everyone knows that there is a problem with the "model traction" model. But if we directly separate the aviation industry from aircraft models, no one knows whether it will work except Chang Haonan, who is a reborn person. ?Just like Zhang Zhenhua just now, he is inevitably affected by the inertia of thinking. ? At this time, if 430 Factory and Xiro Company can give a sample, then the resistance will be much smaller. So, after briefly organizing the language, Chang Haonan slowly spoke: Aviation power research is a long-term topic. The research and development cycle of aviation engines is longer than that of the aircraft itself, so we cannot wait until there is demand for models before thinking about research and development. Mr. Zhang, we have suffered too much from this in the past. Leave it alone, lets just say that Turbofan 9 and Turbofan 10 are both aircraft engines. During this period, we had to rely on imported foreign models to make the transition. Having said this, he stretched out **** and lightly tapped the table in front of him to emphasize: "Even if the J-H-7 and J-10 J-11 are national key projects, and we can concentrate our efforts on solving them, you should know how many things have been delayed in the meantime. Therefore, if you don''t worry about the long-term, you must have immediate worries. We are about to enter the new century. Now, our thinking must keep up with the times..." Chang Haonans words still have some weight in the aviation industry system, especially those units that engage in aero-engines. Therefore, although Zhang Zhenhua still felt a little doubtful in his heart, he did not refute it in any words: "Mr. Chang, when I get back, I will report your attitude to the company and ask them to find a way to negotiate with Luo Luo?" "Can." ?Chang Haonan nodded, but quickly called out to Zhang Zhenhua who had already packed up his notebook and was about to leave: However, two things must be guaranteed. First, there must be complete technology transfer. The hard technical barriers for this kind of small turbine are not high, so it should not be difficult to negotiate. Second, after we get it back, we must have the right to improve the product according to our own standards and needs, and cannot be controlled by outsiders. Zhang Zhenhua almost subconsciously stood up straight after hearing this: "clear!" (End of this chapter) Chapter 485 Negotiate with Luo Luo! Do you British people have this day too? Chapter 485: Negotiating with Luo Luo! Do you British people have this day too? ?Chang Haonan''s reply is undoubtedly a boost for Ren Bingda, who has always wanted to build Haojing Aviation Development Group into a window for external communication. ??This also made him, who had been a little worried these past few days, finally breathe a sigh of relief. ? He ??almost wrote a report on the future development direction of Xiluo Company as quickly as possible and submitted it to Yin Xingjian, general manager of Haofa Group. ??The latter read the report in his hand back and forth twice. ?Although it was only a mere five pages, holding it in his hand made him feel as if it was a piece of paper. Lao Ren Yin Xingjian put the report on his desk and hesitated for a while before finally speaking: "Your idea is indeed good, but now you have neither instructions from your superiors nor a confirmed target for installation. If you rashly introduce a new type of engine from abroad, if something goes wrong in the middle, it will be difficult for you and me to shoulder this responsibility..." ah" Obviously, as a big leader, Yin Xingjians first consideration is stability. ?Especially since he has heard some rumors. Even so...its a matter of money... Chang Haonans official identity is the general manager of Torch Group, a member of the 973 project expert advisory group, and the chief designer of Turbofan 10. The turbojet 8 is the engine of the H-6, but the navy and air force cannot buy a few of them every year. The H-6 is not like the B52, which can install 8 engines per aircraft, so the entire Haofa Group has a disadvantage. Sure enough, Yin Xingjian, who just said "I will never agree", changed his expression and picked up the report on the table again. ?Ren Bingda used the method Gao Ning used to convince himself before Chang Haonan Make full use of Chang Haonans golden brand. ??Although he doesnt know the specific situation yet, as a veteran, he knows that at such a critical moment, it is certainly a good thing to be able to achieve results, but the more important thing is to ensure that no mistakes are made. ? almost single-handedly reshaped the pattern of Chinas aviation manufacturing industry. However, judging from the experience of the past period, the other party can be called a leader in the industry, and it can revitalize any industry it enters. "Furthermore, our group is a small business. Although the localization of turbofan 9 is progressing quickly, it has not yet been put into production. We only have a serious model like turbojet 8. The aero-derivative turbojet 8G is also popular. Beijing''s Turbojet 14 aero-modification impact cannot be sold, so it will be difficult to raise enough funds for you..." ??Without the funding for the Turbofan 9 project, it would have been difficult to pay wages in the past two years. What Yin Xingjian said is indeed true. ??If something goes wrong, it is definitely not Chang Haonan who will take the blame. So there is still a fierce battle between heaven and man in my heart. The five major military industrial corporations may need to be reorganized in the next few years. Mr. Yin, this report was actually summarized after I asked Minister Zhang Zhenhua to ask Mr. Chang Haonan of the Turbofan 10 project and based on his opinions. It is not the direct superior of Haofa Group. When you reach their level, you basically know what amazing achievements Chang Haonan has made in the past year or so. It can be said that everyone in the entire aviation industry system is reaping the dividends brought by Chang Haonan to some extent. Obviously, he did not know that Chang Haonan had a real say in the reorganization process of the Aviation Industry Corporation. The balance in Yin Xingjian''s heart was jumping left and right near the equilibrium position, and even he himself didn''t know which choice he was inclined to make. ?At this time, Ren Bingda just added the last chip in his hand: In fact, there is no need to worry about the funding issue. The foreign exchange quota that was originally planned to be used for the localization of Turbofan 9, now only needs to use a small part at most to appease Rolls-Royce. The remaining money, plus a little more, should be enough to complete my plan. ?Such a confident and decisive statement made Yin Xingjian stunned for a moment: Even if Rolls-Royce doesnt open its mouth, their asking price in the engine field is still very high. Whats more, if you want to transfer technology, it will probably be an astronomical figure..." ?Ren Bingda shook his head: "Mr. Chang has considered the affordability of our group before, so he specially set the target range this time. In the past two days, I selected an inconspicuous and not difficult product from their product series, but it happened to be Its a blank model in our country. The M250 engine is divided into two series: turboshaft and turboprop. Depending on the model, the output power ranges from 184kw to 331kw. It was originally an Allison model. After being acquired, it became a Rolls-Royce product. Obviously, he had done a lot of homework before coming: The most important thing is that before this, Rolls-Royce has authorized this model to many countries for production, so the technical barriers are relatively low. At this point, Yin Xingjian has no reason to continue to oppose. He just asked Ren Bingda to control the risks, and there must be no recurrence of the situation where the turbofan 9 has been delayed for almost 30 years after its introduction but has not yet completed localization. ?A few days later, the two British directors of Ciro Company, George Breen and Adam Whittle, finally received a reply, inviting them to go to Haofei Group the next day to discuss relevant matters. Originally, according to the custom of leading the British, it was absolutely impossible to agree to such a thing as informing the meeting on the next day in the evening of the first day. However, the status of the two parties was now reversed. It was the two of them who had something to ask for, so they had to recruit a few people and rushed to the meeting place designated by the Chinese side early the next morning. ??The team led by Ren Bingda and Gao Ning specially arrived at the venue at the right time. ??And several British people on Luoluo''s side have obviously been waiting inside for a while. Manager Ren, you made us wait for a long time this time. ?After staying in China for more than a year, George and Adam can speak some slightly blunt Chinese. They obviously want to take a preemptive strike and suppress Ren Bingda''s momentum. "Huh?" Ren Bingda made a special appearance of surprise: I remember the reply said that the meeting was at 9:30 in the morning. Its only 9:27 now. Dont be so anxious... This sentence made the two British people who were angry just now get stuck. After hesitating for a long time, they sat back down in their seats. After all, when this kind of meeting was held in the past, people from China would arrive early. ?The period before the official start of the meeting is mainly about setting the tone, and Luo Luo will obviously suffer some losses because he failed to calm down. After a brief interlude, the two parties quickly took their seats. ??This meeting was initiated by the British side, so the Chinese side who accepted the invitation were not in a hurry to get to the point. ? No matter how George and Adam made insinuations, Ren Bingda and Gao Ning pretended not to understand, and went in circles to review the friendly relations between the two parties and the huge market potential of China''s aviation industry. Manager Ren, lets talk about the procurement of components and technology transfer for Spey engine next year. Even the British could not withstand this kind of gameplay and got to the point first. Next year? ??Ren Bingda adjusted his sitting posture slightly, looked at Gao Ning next to him, and then said: But, we have no further plans to invest in the Sibei project next year? ?The tone was so calm and the attitude was so matter-of-fact that the British person opposite him felt that he had lost his memory. Butbut you clearly said before that this project will last at least 3-4 years? ?George He originally thought that Huaxia had been delaying because he wanted to get a better price, but he didn''t expect that people would just flip the table when they came up. Well...we did say that. ?Ren Bingda moved his upper body forward and rested on the table: But last year it was you, Rolls-Royce, who refused to sign a four-year technology transfer and supply contract at once, and had to sign it once a year based on the actual situation. The actual situation now is that we no longer need you to provide SPEI MK202 technology. Hearing this sentence, George was basically in a state of confusion. "this" The reason why China did not agree to the four-year contract was because it required that all technical data related to SPEI MK202 must be transferred within four years. But he and Adam hoped to procrastinate for a few more years so as to squeeze out more profits. ?According to their estimates at the time, if China relied entirely on itself, it would take about 8-10 years to completely complete the localization of Sibei. So it is absolutely possible to earn stable money for two to three years more than the original plan of 4 years. The two of them were once complacent about this decision. As a result, now, he has shot himself in the foot. Even so, you already have a model of aircraft that uses our engines, related components, and after-sales services... Adam''s response was obviously faster and he immediately switched the topic to maintenance and security. ?However, Gao Ning, who had been silent just now, added the final blow: Well, we have basically completed the domestic production of key consumables for the Spey engine, and have made some improvements to the unreasonable aspects of your original design. Now, even if there are new aircraft to use this kind of engine, the components you provide no longer meet the technical requirements of the improved version. (End of this chapter) Chapter 486 In the past, people asked for things, but now people ask for things from me. Chapter 486 In the past, people asked for things from others, but now people ask for things from me. As soon as Gao Ning said these words, the entire conference room fell into silence almost instantly. Adam Whittle''s facial muscles twitched slightly, and he opened his mouth several times, but was unable to say any effective words. On the one hand, I was extremely shocked. On the other hand, I was completely unprepared for this before coming. ? It was only yesterday afternoon that they received a reply saying that they could hold a meeting and negotiate. At that time, they thought their price reduction strategy was successful, so they came over without thinking too much. result In short, after George, who was sitting at the top of the British side, heard this statement, his first thought was Are the Chinese people bluffing? ? A year ago, you still had 30% of core components that could not be produced domestically. You had to replenish them with second-hand products from Rolls-Royce''s inventory, and you were also prepared to pay high prices for the production technical data of these components. ? It turns out that less than 11 months have passed, and now you are saying that you have even produced an improved model? Can you be reasonable? And its an improved model that we cant even supply? Lets not talk about how Chinas technical level has jumped three feet high, and it has completed the localization of Sibei. ??Just say, if that''s the case, why did you set up a joint venture after going through this whole business in the past two years? ?Sure enough, George immediately lost his temper. ??These people sitting in the conference room are all veterans who have been responsible for negotiating with Luo Luo in the past two years. They are very popular with the British. Now that they finally have such an opportunity, they will not let it go easily. ?This is not a good thing originally, but at this time it can be used as a mockery... ??Its a bluff, and in the end its just to pay back the money. Gao Ning next to him continued: Are you kidding us brothers? ?After a while, George, who finally recovered from the shock, began to rack his brains to organize words. Obviously, without any psychological preparation, all he could think of was this old-fashioned method. "Of course, twenty years ago, when we first wanted to introduce a turbofan engine, the data given by your company in the promotional materials was that the thrust-to-weight ratio could reach 8. Only then did we prepare to use Sibe as an engine at the same time. The power of future fighters, attack aircraft and bombers. But the other party''s attitude is not called overturning the table, it is simply smashing the table. ???Everyone on Luo Luo''s side looked at each other in shock, and Haofa''s side had no need to continue speaking. They all waited for the other party''s response with a fun attitude. ? Gao Ning took advantage of the victory to pursue the victory and began to continue to settle old scores: Actually, Mr. Breen, if possible, we dont want to spend additional resources on design improvements for an old model engine like Spey. To be honest, this matter is still your Rolls-Royce problem. Our problem? ?This reply made Ren Bingda laugh directly: ??The two people''s verbal bombardment has confused Luoluo, who was already at a loss. But if you think about it carefully, it doesnt seem like it. ??The introduction of Spey was a confusing matter made in a special period. Let alone Rolls-Royce, there are many things that China cannot explain clearly. Mr. George Breen, I need to remind you that your company has not provided after-sales support services for the aero engines purchased by us..." Aeroengine is a complex system. If the overall design is not fully considered and some structural changes are made rashly, our company cannot guarantee the consequences..." "As a result, after our senior technical personnel went to your country for personal inspection, they discovered that your promotional materials were extremely watery. The real thrust-to-weight ratio of Sibei was only 5 levels. Due to the insufficient afterburning speed, there was no way to Working in an environment exceeding 1.8 times the speed of sound has led to a significant narrowing of installation targets. Not to mention the fighter, even the power of the fighter-bomber is very weak. This is why we have no choice but to make limited improvements on the original basis..." In a word, we are all wiping your butts. ??Although George Brin could no longer wrap his head around it, he still instinctively felt that something was wrong. In the mid-1970s, he had not yet graduated from college, so he had no way of knowing about propaganda water injection. ?But even if this is the case, we have been using this model of Spey for 20 years, so it is impossible for the problem to be discovered suddenly this year. ??Furthermore, this is not directly related to the fact that you established a company last year and abandoned the companys business this year. ??More importantly, he found that the entire conversation was already developing in an uncontrollable direction. He is completely being led by the nose. ??Although Luoluo is a supplier of Party B, it is also Party B who acts as a superior to others. When has it ever encountered such a situation? Therefore, George immediately decided to ask for a prorogation to avoid the spotlight. By the way, take some time to review what happened. ??Such a normal request is naturally impossible for China to refuse. What''s more, the other party is the one who is anxious now. If time continues to delay, it will only become more and more disadvantageous for them. After the meeting was adjourned, the British staff quickly left one after another and went to have a small meeting outside. Gao Ning finally smiled happily after watching the last person leave the room: TMD, it was so enjoyable just now! Ive wanted to spray them like this for a long time. I never had the chance in the past, but I finally got the chance this time! As the deputy director of the production department who is engaged in technology, he often has contact with people from Luoluo in his daily work, and he is even more angry than Ren Bingda. After all, the latter generally only need to deal with the other party''s middle and high-level personnel, and these people at least still have some concerns about face. On the contrary, ordinary British employees who were sent to the site often behaved with arrogance. ??Although Ren Bingda next to him was quite elegant, he couldn''t help but nod: Yes, it seems that the saying imperialism is a paper tiger is not only applicable on the battlefield, but also valid in the shopping mall. Before, we were all very majestic, but now that we have used some chips, we will immediately retreat. The venue was filled with a happy atmosphere for a while: If future negotiations are like this, then I will have to come back and work for another 10 years after I retire. The good days of these foreign companies making money here are coming to an end If you want to say it, Mr. Chang is indeed very powerful... The general direction of this negotiation is what he has given..." Hey, you said that Turbofan 9 can be improved with the technology of third-generation aviation engines. I heard that it is also because of Mr. Changs matchmaking..." The other side. Compared to the joy and excitement on the Haofei delegation side, the atmosphere on Luo Luo''s side was much heavier. After leaving the venue, George wanted to find a place to smoke a cigarette to sober up, but was quickly approached by Adam who followed him out. George, do you feel like somethings not quite right? Adam also lit up a Marlboro and leaned on the railing beside the rooftop. Of course its not right, and its very wrong... How could the Chinese solve those technical problems on their own in such a short period of time? ?George put the lighter into his pocket, exhaled a long stream of smoke and said: "When we had our first contract negotiation last year, I personally saw the technology transfer list they listed. Basically, it was the most core and most difficult part. Even if I handed them all the technical information at that time, I would still have to chew through it. It took two or three years...but looking at their posture, it doesn''t look like they are bluffing..." So, George, I have a wild guess. Adam''s hand holding the cigarette was waving in the air, looking determined. What guess? ?At this time, George can only act as a living doctor. I think that all this may have been planned by the Chinese people a long time ago. From the very beginning, it was a trap to lure us in. I have read their art of war book. What is this called... Go up to the house and take out the ladder! Adam put on an air of "No one knows Sun Tzu''s Art of War better than me", and became more and more enthusiastic as he spoke: Think about it, they just presented an aircraft engine at the air show last year with performance comparable to that of the F404. Since they have such technical strength, how could they not understand an old model like Spey for 20 years? "So I guess that they have probably been able to produce all of Sibei''s components for a long time. The reason why they signed a contract with us last year was to lure us into entering the Chinese market again, including this joint venture, and also to increase our sunk costs. ! Now that we have invested money in Huaxia and established a joint venture team, they suddenly announced that they would no longer sign subsequent contracts. They must want to get something else from us..." After explaining the fact that the donkey''s lips are not the horse''s mouth, it actually makes people feel very reasonable. Then...we absolutely cannot compromise with them? George asked tentatively. He felt that the amount of information he had received this morning was a bit excessive, and he almost lost his ability to think. George, what are you thinking about? ??Adam looked like he had seen a ghost, pulled George close and whispered: "Anyway, the two of us are the supervisors of Huaxia. We were the two who signed the contract at the beginning. It is still the two of us who have been responsible for connecting with Huaxia this year. If the company''s investment in Huaxia is watered down, Piao, who do you think the company will let take the blame?" ? George was just stimulated and his reaction slowed down. He was not really stupid. He naturally quickly came to the conclusion: The two of us? Thats right. Adam nodded, So, no matter what, we must find a way to continue this business and Siro Company, even if its just on the surface! But they have just said that they will not continue to purchase. This is no longer a matter of negotiating terms..." ? George has worked in several third-world countries such as Brazil in the past, but those were markets where Luo Luo had an absolute advantage and had the right to say the same thing. How had he ever seen this kind of table-breaking negotiation model? On the contrary, Adam saw it more clearly: If there is really nothing to discuss, they can just write back and say no. "Since we have been called here, it means there is still room for maneuver..." After some explanation, Georges IQ finally regained the high ground. But he still has some concerns: What you say makes sense, Adam, but if we make concessions first, then the subsequent conditions will be difficult to negotiate... Adams answer was almost a no-brainer: The things given out belong to the company, and the wages we get are our own. We can give in to conditions and other things..." But even if we agree to something, the company may not agree? Is this... ?This question also made Adam find it a bit difficult, and finally he had to answer bluntly: "I think since they have laid out such a big plan, they have probably carefully considered the conditions. Why don''t we listen to it first after we go back?" "Moreover, the headquarters doesn''t know what the actual situation is. We can also modify the report a little. In any case, China is indeed a market with huge potential, and I don''t think the higher ups want to give up so casually... " (End of this chapter) Chapter 487 Play hard to get Chapter 487 Play hard to get As the saying goes, nothing is difficult in the world, as long as you are willing to give up. After quickly excusing themselves, George and Adam''s thoughts were as fast as light. ?Of course, this kind of content involving private transactions is definitely not easy to put on the negotiation table and put it clearly. The main reason is that the negotiating team brought by Luo Luo is not very good. They were just selected temporarily last night, and many of them are not close confidants of the two of them. So some content cannot be allowed to be heard by these people. Hence, after the negotiations were restarted, their focus obviously did not continue to be on the Spey project, but instead began to ask sideways what China''s needs for aviation power would be in the future. ??The people on the Huaxia side are all veterans who have experienced many battles. They saw that Luo Luo''s attitude softened, but they still refused to get to the point, so they probably guessed what was going on. In short, after some back and forth of mutual hints, although the two sides did not reach a final agreement, they still exchanged views candidly and established a corresponding working mechanism, laying the foundation for the next more in-depth negotiation. After the meeting, Ren Bingda and Gao Ning frankly invited George and Adam to have dinner at a high-end restaurant in downtown Haojing. The British take status and class very seriously. ?For example, in China, it would look strange if you dont take a few people with you to eat. The wine table is often a good place to talk. It is common for the leaders of the two parties to have a meal after a meeting is over, anywhere in the world. But for this situation, it can save a lot of things. This point cannot be changed in ancient and modern times, both at home and abroad. ? Gao Ning went to the Workers'', Peasants and Soldiers'' University, so his English level is average. He can barely understand the articles, but he can''t communicate well. If there is no identity requirement in a formal occasion, then there is no need for translation at all. ??However, Ren Bingda is a genuine British student who graduated from the University of Birmingham and speaks English very well. Normally, this is certainly not an advantage. Just in different cultures, the specific implementation will be different. Sure enough, after drinking a few glasses of high-quality foreign wine, the two British people talked a lot. ?Having dealt with the British for a long time, he already knew this group of people quite well. Although they behave like decent people during working hours, as soon as they get off work, they all turn into drunkards. For British people, this is quite normal. Everyone knows what kind of insider trading you are going to do privately. ??And if you get to the United States, you probably have to go to an island and submit a certificate of nomination... Therefore, after arriving at the place, the latter quickly signed the order and served good wine and food to the private room reserved for four people. ??For Ren Bingda, who had talked with Lao Maozi before, this was as simple as going back to play on novice difficulty after getting the platinum achievement. The point is, I am greedy for wine, but my drinking capacity is very poor. ??No matter what the identity or status of your entourage, they should not appear on the same occasion. "Mr. Ren, Mr. Gao, Sibei...can you really make all of Sibei''s components?" ??The privacy of this private room is quite good. Coupled with the smell of alcohol, George, who is also a technician, asked questions that he couldn''t understand. ?However, for the Hao Fei duo, Gao Ning, who was not good at English, was mainly holding back the drinks, so Ren Bingda, who was in charge of speaking, was relatively sober. He pretended to ponder, and then shook his head after a moment: Thisactually, I dont know much about it either. "To be honest, our group originally wanted to continue the business of Sibei. However, two months ago, we suddenly received instructions from our superiors that the foreign exchange originally planned to be used for importing Sibei components and technology introduction All quotas have been cleared and we are preparing to switch to domestic production. We are still confused now and are just executing orders..." Oh? Is there such a thing? Originally just looking for a topic to jump into and satisfy his curiosity, George seemed to have caught some interesting content: But before replacing components, shouldnt there be a round of installation testing first? This should always be your responsibility, right? Heres the problem ??Ren Bingda quickly filled the wine glasses for the other party and himself, making a sad look: What you are talking about has not been done yet. We are also worried that there will be problems with domestically produced parts As he spoke, he also mentally apologized to Chang Haonan, whom he had never met before. ?Yam Bingdas acting skills are actually a bit stiff. ??If it were left to normal, there might be some clues. But the light inside the box was already dim, and the other three people were already at least 40 to 50% drunk, and their minds were not spinning as fast as usual. ??More importantly, George and Adam have stayed in China for nearly a year, and have participated in various social activities. They consider themselves to be experienced in this field In this era, various places are doing almost anything to attract investment. Foreigners, especially foreigners like them who come here with capital, are basically the targets of being kneeled down and licked wherever they go. With such a mentality, many people are not wary of them. ?Some secrets dont even require others to pry out, but people on your side take the initiative to reveal them... In short, living in such a matching environment for a long time has caused the two people to gradually integrate into the segmentation. ?Some people dare to say anything, and they both dare to believe everything. So after hearing Ren Bingdas complaint, Adam quickly answered: In this case, our cooperation must continue... As you said, if there is a problem with those new parts, shouldnt we use the stock parts we provide to support the situation? We can apply to the head office to erase part of the origin of these pieces, so that you can use them as domestically produced... In the past year in China, he has also been in contact with many foreigners who are also doing business in China. He knows that many Chinese companies will repurchase imported products and disguise them as domestically produced in order to meet the requirements of localization in some tenders. rate requirements. ?Of course, some people do the opposite, disguising domestic products as imported goods and selling them at high prices. So it was natural for Adam to come up with this idea. ?Ren Bingda and Gao Ning looked at each other. Obviously, two Englishmen have taken the bait. "It''s not a question of whether we want it or not, Mr. Whittle..." As soon as the former spoke, he was interrupted by Adam waving his hand: In private, just call me Adam ?Ren Bingda nodded: "Mr. Adam, you also know that our country has very strict controls on the use of foreign exchange. Without quotas, we have no way to trade with you..." "yes." Gao Ning looked troubled, but then he started to make excuses: "Moreover, the risk of doing this is too high. The order to use domestically produced parts is clearly notified by the above. We will act according to the rules. Even if something goes wrong, we can get rid of the main responsibility. But if we continue to use the parts you provide, If we are discovered, we two brothers will have to bear the responsibility..." Ren Bingda next to him looked indifferent: What you said is wrong. If there is a problem with domestically produced parts, wouldnt users be looking for us? Let me see, Adam is right, we need to find a way to continue this business. Besides, the Siro Company now relies on this import and export business. If the contract is stopped, the company will have to go bankrupt. It will not be easy for the two of them to explain to the company, right? "We brothers still have pensions after all. If they are fired by the company because of this matter, it will be troublesome..." ??He deliberately interspersed Chinese and English between his words, and looked up to the opposite side with a concerned tone: "am I right?" "this" ?Although Ren Bingdas tone seemed to be caring about his friends, the content he said always sounded like Madam, you dont want to lose your job, right? I have an idea. ?George was quick to think and quickly brought the topic back on track. No matter how you say it, Ren Bingdas meaning is correct This business can be done by China either publicly or privately, but he and Adam have no way out and must go on. You can find another name to apply for a foreign exchange, continue to do business with our Rolls-Royce company, and then allocate part of this fund to continue the procurement of the Sibei project. In this way, you dont have to worry about users coming to make trouble, and we can continue to maintain the normal operations of Xiro Company, how about it? Ren Bingda said so much, waiting for the other party to take the initiative to make such a request. ?Of course, he couldnt agree right away. Well...Im afraid its hard for the two of us to make the decision..." He said and glanced at Gao Ning. The problem of misappropriating foreign exchange funds privately is even more serious... The latter was already responsible for playing the fool, and now he was even more unceremonious: We cant just take risks and get no benefits at all, right? The meaning is obvious. Since you took the initiative to mention this content, is it not too much for us to add some conditions? But Gao Ning also drank a little too much at this time, with that tone and that accent. To anyone who looks at it, it would seem like he is asking for a bribe. George and Adam opposite were naturally not surprised either. The two of them were immediately confused. What do you mean, you have to give me some rebate? Fortunately, Ren Bingda was still sober, so he quickly added: Gao Ning is right, you Luoluo need to come up with something real. In this way, we can both explain to our superiors... Otherwiseotherwise we wouldnt have to wait for another year or two, at least we wont make any mistakes Something real? ?George also felt at this time that he seemed to have walked into a trap. But at this point there was no turning back, so I had to put down the wine glass in my hand: What do you want? "Um" ??Ren Bingda drank half a glass of wine by himself, held his forehead and pretended to think for a while. While Gao Ning continued to perform next to him: It cant be a model thats too complicated, otherwise by the time the technology is fully understood, both of us would have retired a long time ago, and all the credit for our hard work would have gone to the mouths of others But it cant be too simple, otherwise the superiors will definitely not pay attention to it..." About a minute later, Ren Bingda finally raised his head: I heard that your company has a small turbine engine called M250? (End of this chapter) Chapter 488 Preparing for a drone Chapter 488 Preparing for drones For Rolls-Royce, the M250 is just an unexpected bonus they received when they acquired Acheson. The basic design of this engine was completed as early as the 1960s, and it had been transferred to several countries for license production during the Acheson period. ?Although the update cycle of turboshaft and turboprop engines is not fast, and this model is not obsolete until the 1990s, this gadget with a maximum output of only 331kW is not a core technology in any case. The current bid from China is quite reasonable, and it is a market with huge potential. Rolls-Royce made the right choice within a few days. Taking into account the previous experiences and lessons, George and Adam no longer dared to mention anything that was discussed once a year, but honestly signed a three-year technology transfer contract. ?Of course, the British are not philanthropists. They specially added a clause in the contract: In China, this model can be used in any way, but if it is sold to a third country, a special export license fee must be paid to Rolls-Royce for each transaction. I can only say that it is a big company with rich experience. In fact, this is the template of Rolls-Royce''s technology licensing contract, which is a must for any authorized object. Since the default fee ratio is really not high, neither Rolls-Royce headquarters, George and Adam, nor Ren Bingda from China took it seriously when signing the contract. ?Before the formal negotiations, Ren Bingda had already reported his ideas to Chang Haonan through Zhang Zhenhua. ?No one thought that this clause would actually come into play one day. ?Chang Haonan stretched out his hand and pressed down in mid-air, signaling the other party to relax: Model development is not about blindly pursuing the superiority of paper data, but should comprehensively consider the entire aerodynamic system and strive to build a complete aeroengine model spectrum from low to high. ? This is a light turbine with numerous sub-models, and its targets are determined to be the B17 turboprop model of the M250 II series, and the C10 turboshaft model of the same II series. Although the 300kW level was personally decided by Chang Haonan when the two met last time, in the process of technology introduction, there are many leaders who can''t move when they see advanced models, so it is safer to explain a few more words. But reputation and power are two different things after all. Looking at Zhang Zhenhua''s cautious look, Chang Haonan sighed secretly in his heart. In fact, the latter himself did not have too in-depth research on the type spectrum of this type of light aviation engine, so he took the information sent by Zhang Zhenhua and read it for a long time. ? Today''s Chang Haonan is already quite extraordinary just because of his real identity. Zhang Zhenhua saw that Chang Haonan had reached the key point and quickly opened his mouth to explain: Although the III series and IV series are advanced, Rolls-Royce may not be willing to transfer technology, and the price must be high. However, not too many years later, Rolls-Royce will thank its predecessors who set this template. From this perspective, your groups choice is not wrong. M250 series engines Obviously, he was worried that Chang Haonan would be dissatisfied with the model selection. Mr. Chang, the II series is the most balanced choice for General Manager Ren and them in terms of cost, technical difficulty and performance after comprehensive consideration. Also, the turboshaft of the C30 series overlaps with the turboshaft 8 that our country has introduced a complete set of technology from France, and it does not meet the 300kw power level you previously requested. Lets go back to Shengjing. Even though the two met for the first time at the end of last year, the latter already had a fairly high reputation in the aviation industry system. Dont worry, I understand. Both models use the same 6-stage axial flow + 1-stage centrifugal compressor. The maximum output power is adjustable between 294-331kw according to different lifespans. ??Although Torch Group is small in scale, it is also a second-level state-owned enterprise directly under the Academy of Sciences. Its level is on the same level as Haojing Engine Group and Shengjing Aircraft Industry Group, which have thousands of employees. ?As the general manager of Torch Group, if Chang Haonan insists on rank, he can even hold a full-time job in the department. ??Its just that because he is too young and the de-administration of state-owned enterprises is being promoted, he is regarded as a low-ranking employee and has not yet been officially promoted. But the authority in his hands cannot be compromised at all. Not to mention that as the chief designer of the Turbofan 10 project, it is no exaggeration to say that he can directly mobilize the resources of half the aviation industry system. As for the personal connections with which I can speak directly to the Science and Technology Committee and the Science and Technology Committee, it is even more frightening. ? Ding Gaoheng and Song Jian behaved like two ordinary amiable little old men when facing Chang Haonan, but it does not mean that they behave like this in front of others. Most people have no chance of talking to them directly. In short, the accumulation of many identities has actually given Chang Haonan''s words and deeds a considerable influence. This is especially true for middle-level leaders in the aviation industry system like Zhang Zhenhua. ? Many times, Chang Haonans unintentional words or even a tone of voice can determine a project or a persons future and destiny. So, he had to start paying attention to his words and deeds. Especially in front of these subordinates. Whether Chang Haonan likes this is not necessarily true. But whether he likes it or not, this is what happens. After receiving a clear positive evaluation, Zhang Zhenhua finally felt relieved. ?So he tentatively asked about another thing - ?Although Ren Bingda did not say it clearly, he still hoped that Chang Haonan could guarantee the prospects of such an engine. Although part of the funds from Turbofan 9 was diverted to other uses, although it was approved by the group leaders and there was no procedural problem, if the money was really wasted, Ren Bingda, as the initiator, would also be subject to some punishment. Some negative effects. ??The basic logic on China''s side is to unify powers and responsibilities. After all, this is a large amount of foreign exchange expenditure. It is impossible to completely select responsibilities just because of procedural compliance. Lao Zhang, I have made it clear before. ?Chang Haonan''s tone became slightly more serious: The models introduced this time cannot be preset for installation, so I cant guarantee anything here. He has a big chess game to play, so naturally he cant agree to it directly The reason why we introduced such an inconspicuous model through Ciro Company is to prove the feasibility of the "aviation-engine first" route. ? And if you give a large number of models to a few models before the official introduction, you will be on the old path of "model traction" in the past. Even on the contrary, it proves that the path of model traction is correct. ?Wouldnt that be just shooting yourself in the foot? ?Seeing Chang Haonan''s determined look, Zhang Zhenhua did not dare to continue to struggle with this matter. ?He quickly changed the topic to turbofan 9A, reported on the installation progress during this period, and then left the former''s office. After seeing off Lao Zhang, Chang Haonan sighed softly, and after a moment of hesitation, he picked up the receiver of the red phone next to him. ?Although he said something tough, it was impossible for him to really ignore it. ?This model was introduced by him at his suggestion to the Haofa Group. If he just acted as a hands-off shopkeeper, wouldnt it be like starting with chaos and eventually abandoning it? ?After several transfers, the call was finally connected. Opposite him is Sun Huizhong, an old acquaintance of Chang Haonan who has been promoted to the chief designer of Guihang Industry. Sun Gong, its me, Chang Haonan. Chang Haonan rarely used this phone number, so he had to report his home address first. Mr. Chang? The person on the phone was a little confused at first, and then quickly turned into surprise: Mr. Chang, what are your instructions for calling us? We will implement them immediately! ??If people like Zhang Zhenhua and Zhong Shihong are just grateful and respectful to Chang Haonan, then the comrades in Guizhou Province are completely worshiping him. After all, when Guizhou Aviation Industry was almost desperate, it was Chang Haonan who injected them with a life-saving research fund in the name of a "Project 10 DSI Technology Demonstration Machine". ?The Instructor 9, which is currently undergoing intensive ground tests and preparations for flight tests, was almost designed by Chang Haonan and Sun Huizhong. ?Unsurprisingly, this will be the flagship model of Guihang Group for a long time to come. I cant talk about it, I just want to ask. At the beginning of this year, I should have mentioned to you about a medium-altitude long-endurance drone. I wonder if Mr. Sun still remembers it? The M250 engine is mainly installed on three types of aircraftlight helicopters, primary trainers or medium-sized unmanned aerial vehicles. For the current aviation industry, the last one is obviously easier to implement and more practical. ? Even if PLA has no spare money for equipment, it can still export it. I have an impression, of course I have an impression! Even though there was a phone line between them, Sun Huizhong stood up: "It''s just that our group''s strength is concentrated on key research coaches 9. Therefore, currently we have only established a UAV flight control research laboratory in accordance with your previous instructions, recruited a group of graduates in related majors, and are doing preliminary planning. research." I wonder if Mr. Chang needs us to adjust the focus of R&D? Facing such a positive Sun Huizhong, Chang Haonan quickly replied: No, no, no, thats not necessary. You should focus on completing the Coach 9 first. Its test flight data is related to the design of the subsequent prototype of the J-10, and progress must be ensured. "I just want to tell you that I have a 300kW light turboprop engine here that can be used as power. I will fax the more detailed data in a while. You can use this power data as a reference during the pre-research process. to determine the size of the aircraft and other data. This is definitely an unexpected surprise for Sun Huizhong. After all, almost every model of China Aviation Industry has been worried about the engine. ?It is indeed rare that the engine is predetermined before the aircraft is even made. Okayokay! (End of this chapter) Chapter 489 Pulsating production line, structural upgrade issues of J-11 Chapter 489 Pulsating production line, structural upgrade issues of J-11 ?While Haojing Aviation Development Group and Rolls-Royce were discussing the specific introduction agreement, Chang Haonan was not idle either. ?In addition to dealing with the many fragmentary problems faced after the turbofan 10 was transferred to formal research and development, he also spent a lot of free time going to the 601 Research Institute and the 112 Factory. On the one hand, he wanted to lick the flanker lady whom he had little chance to see in his previous life. On the other hand, it also helps them solve some application problems of TORCH Multiphysics software. As each trial user, especially the trial users of the Super Large Cup Professional Enhanced Edition, gradually passed through the initial learning stage, some unsatisfactory aspects of the new software were gradually discovered. ?This information will be fed back to the Torch Group headquarters in Beijing. However, as the person most familiar with the TORC Multiphysics software in the world, Chang Haonan will obviously be of great benefit to the subsequent software upgrades if he can go to the front line to check some actual problems in person. In the final assembly workshop of Factory 112, dozens of workers are climbing up and down around the assembly frame to complete the final assembly of major components of the four J-11s. He Gong, these are...the second and third batch of four aircraft? ?According to the agreement signed with Sukhoi last year, after the completion of three batches of large component assembly of a total of six aircraft, Factory 112 can officially open the "complete machine assembly line" and enter the next step of localization. ?He Ming took Chang Haonan to the side of the plane that was making the fastest progress, and reached out to touch the pitot tube at the tip of the nose. "Yes, the original plan was to carry out the operations separately, but the final assembly of the first batch went very smoothly, so after communicating with experts from Sukhoi, we put the four aircraft in the second and third batches together for final assembly. " Just when Chang Haonan was hesitating whether his judgment was correct, a familiar female voice behind him sounded: As a scientific research dog, Chang Haonan quickly grasped the key points of this passage: The style of this assembly workshop is a bit different from what I saw in the J-8C assembly workshop next door..." Yao Mengna straightened her clothes, got between Chang Haonan and He Ming, stood closer to the assembly frame, and began to introduce further: "This method has two main features. In terms of space, it can operate in parallel in multiple areas, and in terms of time, it can coordinate assembly of multiple types of work. Theoretically, the production efficiency should be at least 50% higher than that of the past continuous moving production lines. 100%. Soon, a familiar feeling emerged. Senior sister? Even though he was not proficient in the field of production management, he could still see that there seemed to be several different types of work being performed at the same time on the front, rear, left and right sides of the aircraft. In other words, the actual situation... Chang Haonan took a few steps back as he spoke so that he could see the overall distribution of the aircraft''s final assembly area. ?Yao Mengna, who had been so proud just now, suddenly lost her energy. She put her hands on her hips and looked angry: How should I put it Assembling an aircraft from scratch is still different from previous upgrades and overhauls, and the complexity of the work involved is far higher than I expected. ?Perhaps because of his long-term stay, the other party even cut his previously long hair to ear length. Its a bit like Factory 172 in Haojing? How do I feel...this final assembly form is a bit like... Including the layout of tools and equipment and the allocation of personnel, there are some unreasonable issues, resulting in the assembly progress not looking very coherent. ??Its just that the coordination between them is still a bit rough. ??Looking very capable indeed, but Chang Haonan almost didn''t recognize him for a while. ?He turned around suddenly and found Yao Mengna wearing work clothes standing behind him. "This final assembly model was developed by me and the team of final assembly engineers at Factory 172 when we were working on the JH7 in Haojing. It was during the time when we were working on the JH7, so you may feel that there are some familiar." Theoretically So after several rounds of adjustments, there will still be a problem of some teams waiting for assembly tasks when they are fully loaded, while other teams are idle waiting for assembly tasks. The overall efficiency has not changed compared with the old method of continuous mobile production..." In fact, the set of things Yao Mengna created is very close to the later concept of pulsating production line. ? And coincidentally, the pulsating production line in the previous life was first put into use in Haojing, and then extended to the entire aviation industry system. ? Its just that the level of computer hardware and algorithms in the late 1990s was still relatively limited, so it was very difficult to optimize this advanced production method. You cant say that either. He Ming, who had been silent just now, finally spoke: Actually, when we first used the new method to assemble the first two aircraft, the efficiency was not as high as the original continuous moving production model. "Now it has been much better after several optimizations, which shows that this method still has great potential. As long as we can continue to adjust it based on actual production experience, we will definitely be able to achieve the theoretical effect." ? ? ? "After all, we have only built six aircraft. , production matters cannot be rushed. ?He Ming''s comfort made Yao Mengna''s mood obviously improve a lot. Actually, I also tried to use the differential evolution algorithm developed by you and Sister Xu Yang to optimize it from a mathematical perspective, but... the effect was not good. ?Chang Haonan remembered that the last time he saw Yao Mengna, the latter still called Xu Yang Researcher Xu. ??The relationship between the two seems to have improved a lot during this time... ?He shook his head slightly to throw away the random thoughts in his mind, and then explained: "Although the differential evolution algorithm is advanced, it is not omnipotent. For this kind of discrete, integer, high-dimensional, large-scale, multi-constraint optimization problem, it relies heavily on the summary of problem characteristics and experience, and it is easy to fall into the trouble of local optimality. , in short, it is not suitable for application scenarios such as aircraft production lines. Hearing Chang Haonans sane analysis, Yao Mengna instantly became interested: Teacher...Mr. Chang, do you have a better way? In private, Yao Mengna still used to call Junior Brother Chang Haonan, which was considered her exclusive title. ??But in public, she is still relatively measured. Is there a better way? It may be some path planning algorithms, but it will take some extra time to study. You can try using an ordinary genetic algorithm first. The effect should be better than the differential evolution algorithm. ?Chang Haonan first gave some suggestions, and then added: My research in the field of control science and optimization algorithms is purely out of interest. Now the turbofan 10, the die forging press and the TORC Multiphysics software all need to be handled by me personally. I am afraid that I will not have much energy to focus on them in a short period of time. He Ming, who had been an audience next to him, was immediately stunned by this piece of Versailles. ?Good guy, you did some random research out of interest and you crushed all your peers in the country and even around the world? Should you let others live? ?But Yao Mengna has long been used to it. ?She took advantage of the situation and changed the subject: Speaking of TORCMultiphysics, we recently encountered some difficult problems when optimizing the structure of the J-11. Structural optimization? Chang Haonan raised his head and looked at the huge semi-finished J-11 in front of him: How far have you achieved it? Yao Mengna took him under the main wing on one side of the plane and pointed to the innermost part of the wing: "According to the technology sharing agreement signed by both parties, Sukhoi has brought the first phase of structural optimization results to us. The difference reflected in the product is the addition of a pair of heavy loads with a maximum load capacity of 2,000kg on the innermost side of the wing. racks, increasing the total number of racks from 10 to 12. We plan to introduce this upgraded new airframe starting from the fourth batch, which is the aircraft assembled with low components. ? ?Due to structural strength limitations, the earliest Su-27 did not have a hardpoint designed at this location, which was originally very suitable for mounting large-size air-to-surface ammunition. In the previous generation, this problem was solved on the Su-27SM, but because the contract depth of Project 11 was far less than it is today, China did not use these two high-quality heavy-load mounting points until the introduction of the Su-30MKK in the new century. Now that the problem on the wing has been solved, the problem must lie in the central lifting body itself? ?Chang Haonan probably knew the optimization process of flankers, so he asked directly. Thats right. Yao Mengna nodded directly: "This is a problem that we and Sukhoi experts are struggling with. The available overload of the aircraft in a specific speed range will be reduced from +9G to +5G-+6G. Although it can be controlled by upgrading the digital fly-by-wire flight control. The impact range is minimized, but it is still a hidden danger. During the structural mechanics calculation of the J-11s wing-body fusion body, we tried many methods such as dynamic overlapping grids, dynamic unstructured grids, and non-structural overlapping grids. But either the generation accuracy is not up to standard, or the generation efficiency is too low, it will take several months, or the calculation time step cannot be too large, otherwise it will diverge..." Is there such a thing? The grid generation algorithm of TORCHMultiphysics was specially developed by Chang Haonan. However, the focus of the research at that time was to solve the mesh generation problem of the dirty model, and there was indeed no specific optimization for the structural mechanics/fluid mechanics composite analysis problem of this type of wing-body fusion. When you encounter problems now, you should naturally be very attentive: Lets go and see the specific situation. (End of this chapter) Chapter 490 Progress of Project 11 Chapter 490 Progress of Project No. 11 Chang Haonans original intention was to go directly to No. 601 Institute. After all, Factory 112 is only responsible for production, and structural improvement is left to the research institute. ?However, Yao Mengna directly changed direction and took Chang Haonan to a small door next to the assembly workshop. "While we were producing the first batch of two aircraft, we also assembled an additional complete airframe to conduct some aerodynamic, structural and flight control tests for the comrades of the 601 Institute, in order to facilitate the docking with the production process. , so it was placed in the test workshop next door. He Ming explained as he walked. ?Now Chang Haonan finally understood why he met Yao Mengna here by such a coincidence. The latter should theoretically be linked to the research institute. ?After walking in the corridor for a few minutes, He Ming opened a small door that was not very eye-catching. Inside is a space slightly smaller than the general assembly workshop just now. This is what we renovated from an old workshop for Project No. 11. After the three of them walked in one after another, He Ming closed the door with his backhand and introduced at the same time: Originally, this place was planned to be used to produce the J-7 after surveying and mapping. Later, because the entire project was moved to the south, it has been idle. Later, it was used as a final assembly workshop for the J-8 for a period of time. "But because the overall design is too old, it is difficult to adapt to the production needs of new models. The previous plan was to dismantle and rebuild it as the second workshop of the J-8C. Later, I thought it happened to be close to the J-11 assembly line, so I used it to build it. Tested. As he was speaking, a plane suspended in mid-air appeared in front of Chang Haonan. To be precise, it is the shell of an airplane. Because even if the distance is not close, you can still see that places like radars and engines are all equipped with counterweights. ??Moreover, the color of the skin on the surface of the aircraft has also been changed from yellow to a slightly green color. It seems that you have put a lot of effort into this improvement plan... Under normal circumstances, it is not necessary to conduct this kind of structural testing simply by introducing a final assembly line. ?For example, in India, the static test of Su-30MKI was completed in Russia. At least there is no need to do it so early. ?For example, the static test of the J-6 was completed when preparing to build the J-6. Because the final steps of this kind of test are to destroy one or even multiple complete aircraft, they are very valuable combat resources for the Chinese Air Force, which currently seriously lacks immediate combat capabilities. ?In the last generation, the J-11''s static verification machine only began to be put into use after entering the new century. But now, the action is obviously much earlier. According to the path of production while improvement we have set, the first three batches of six aircraft, except for the wingtip pylons, are no different from the Su-27SK aircraft we imported before, He Ming explained from the side: "The 24 single-seat aircraft from the fourth to sixth batches, and the first batch of four two-seat aircraft, will begin to use the upgraded new body that Yao Gong just said, and the performance will be slightly better. The most important thing is that it has The N001M radar in surface-to-sea mode has limited surface-to-sea strike capabilities. Equivalent to the Su-27SM and Su-30 from the original factory in Komsomolsk? ?Chang Haonan turned around and confirmed. The basic model of the Su-27 does not have any ground attack capabilities except rockets and iron bombs. In fact, it is a complete waste of the huge bomb load brought by the Flanker. The J-10 does have multi-purpose capabilities, but its size still severely limits its performance. ??If a true multi-purpose fighter can be obtained a few years in advance, it will be a huge benefit to the Air Force''s combat effectiveness upgrade and the transformation of its tactics. ?Of course, the price is that the number of JH-7s definitely does not need to be that many. ?But its a good thing. Haojing already specializes in large aircraft. It would be too wasteful to use the production line to build fighter-bombers. "Yes, there are a total of 34 aircraft in these six batches, which is also the entire quantity we produce using 100% Russian components. We will gradually adopt serial assembly production later, and gradually transition to completely domestic production except for the power system." Project No. 11 It is a contract between China Aviation Industry and Sukhoi and has nothing to do with Rulika-Saturn, which makes the engine. But when it came to this, He Ming paused for a while, and then added: Of course, after Mr. Changs turbofan 10 is completed, even the power system will be solved. By then, the third-generation fighter jet will be fully domestically produced..." You just said that in addition to the power system, small things such as aircraft fasteners can also be localized? ?Chang Haonan noticed some details mentioned by the other party. In the aviation manufacturing industry, high technology may be hidden in every detail. Aircraft fasteners are inconspicuous little things like bolts and rivets used on airplanes. However, it is inconspicuous, but its technical content is not low. ?Furthermore, there are many types of fasteners used on an aircraft, and the specific performance requirements and materials used are very different. In addition, there are no shortcuts in materials and process issues, resulting in very slow research and development. ? In the last generation, and even until about 2020, China imported a large number of aircraft fasteners for production every year. "Can." He Ming, who had never experienced any of this, nodded naturally: These are all part of the technology sharing clauses in the contract. Correspondingly, many Russian technologies that were previously on paper will also use our resources, mainly computer resources, for further development. While chatting with He Ming about the progress of Project 11, Chang Haonan briefly greeted several researchers along the way and walked quickly to the plane. Then he raised his head and looked carefully at some details on the plane. Although I cant see much clearly, I can clearly see that there are a set of bolts on the innermost side under the wing, as well as the corresponding electrical interface. Furthermore, it is also a two-seater model. In other words, it is even a real Su-30 airframe after the first round of upgrades. In the last generation, China did not introduce and produce the two-seat Su-27UBK or Su-30. The J-11BS, including the subsequent J-16, were all independently developed based on the J-11B. ??Although Project 11 on this timeline is completely different from its previous life, Chang Haonan was still a little shocked that a complete version of the Su-30 was built in 1997. You should know that all the "Su-30" used for flight performances in the early years, even the first batch of Su-30MK exported to India, were actually directly painted with Su-27UB... Is my influence already so terrifying? ?Although Chang Haonan secretly feels that this matter has something to do with him, he is still a little surprised by the progress. You should know that after the J-8C was successfully finalized, Chang Haonan returned to Shengjing several times for the turbofan 10 matter. Before that, he had not directly participated in the No. 11 project. If such a project can produce such a huge change because of him, it will undoubtedly mean that it is one step closer to the goal at the beginning of the rebirth. Is this body the two-seater model we are going to assemble? Thats right. ?He Ming nodded: It was extra shipped over from Komsomolsk for research. It is also a typical example of implementing the Russian technology that remains on paper as I just mentioned. We plan to call the single-seat model J-11A and the two-seat model J-11AS for aircraft in this technical state. Starting from the seventh batch of aircraft, the aircrafts structure and avionics equipment will be further upgraded. "This airframe is prepared for the second round of improvement plan. First, it is to eliminate the structural weak area of ??the central lift body. Second, it is to upgrade a larger proportion of composite materials and lithium aluminum alloy to reduce weight. Third, it is to completely replace it with domestically produced ones. modernized airborne equipment and fully compatible with domestic ammunition systems. Just when He Ming was introducing this, Yao Mengna, who had just walked around to the other side of the plane, came back holding a laptop in each hand: Mr. Chang, I brought the softwares operation log and results. (End of this chapter) Chapter 491 Wont you change it yourself? Chapter 491: Wont you change it yourself? ?For large tasks such as whole-machine aerodynamic simulation or structural simulation, the real calculation process must be completed on a supercomputer. But the saved log files can still be seen on the PC used as the input and output terminal. These days, many terminals and servers still use batch FTP to connect to each other, which only captures data once a day, rather than real-time linkage APIs. ?Of course, because the computing speed of the server is relatively limited, it does not appear to be very inefficient. We have encountered basically the same troubles mainly in two directions of research. ?Yao Mengna put the two computers on the table, straightened her messy hair a little and began to explain: One is what I just said, the computational structural mechanics problem of structural analysis of the body part. ??As she spoke, she tapped a few times on the keyboard of one of the computers, entered an account, and called up a series of calculation results. Then he turned to the second computer and performed a similar operation: Another thing is that we are also studying the problem of airflow interference when the aircraft drops large-sized suspended objects. "In previous wind tunnel tests, it was found that some ammunition, especially some cruise ammunition with relatively strong lift, will not immediately free-fall after the whole body formed by them and the wing is destroyed, but will move upward and damage the wing. , we hope to solve this hidden danger before the seventh batch of aircraft is put into production. The early Su-27 basically did not consider ground attack, did not need to carry any large ammunition, and did not have external auxiliary fuel tanks, so there was no need to consider such issues. Hence, when developing multi-purpose aircraft on the same platform, some strange problems will arise that are easily overlooked. Let me take a look Chang Haonan came to the first computer and bent down to carefully check the program''s running log. He Mingze, who was following behind, moved a chair very appropriately and placed it behind Chang Haonan. Mr. Chang, please sit down first. A few seconds later, when he realized something, he brought a second picture to Yao Mengna and placed it next to Chang Haonan. You used hyperboloid structural mesh and volume structural mesh... Speaking of which, your modeling level is very high. The geometric modeling process only took a few days to complete? Geometric modeling processing is the prerequisite step in the mesh generation process. In 1997, the main problem faced by most computational fluid dynamics and computational structural mechanics simulations around the world was actually the lack of a mature application tool from CAD models to surface structure mesh generation. For existing mesh generation tools, for some models with slightly higher accuracy, it often takes about 6 months or even longer to complete the entire generation work. ?For example, the simplified model of Boeing 747LCF took 4 months. The V22 Osprey took more than 9 months. And from a later perspective, it was clear that there were design flaws. In comparison, geometric modeling that takes several weeks to a month is not a big problem and is completely acceptable. But for TORCMultiphysics, the mesh generation process is generally shortened to 1-2 months, so the speed of geometric modeling processing seems a bit slow. ? Its just that Chang Haonan never had time to focus on modeling, and always used Dassaults software packages directly. The engineers from Sukhoi brought a new modeling software called KOMPAS. I slightly adjusted the interface compatibility of TORCHMultiphysics so that it can directly connect to the Kom format project files. Originally, it was just to save trouble, but I found that this modeling method is very suitable for our software, so I have been using it ever since. Although this is not the main problem to be solved today, Chang Haonan still paid a little attention. ?Mao''s electronics industry has stagnated for nearly 10 years and has gradually fallen behind. However, when it comes to software and algorithms, it has not fallen far behind. ??Although the market is not big enough, there are few hits (except for telegram), but there are definitely some unique skills. After a short interlude, Chang Haonan once again focused on the grid generation log behind. The number of sub-area grid blocks is 253 The number of grid cells is 133 millionits really a lot, the complexity is very high Grid assembly When he saw this last step, he quickly discovered something was wrong: Huh? According to the normal process, TORCMultiphysics should automatically "assemble" these 253 grid blocks together through inter-grid interpolation in the overlapping areas. But the log shows that the software got stuck at this step. To be precise, it got stuck during the data capture process before this assembly step. Too much data? This is the first possibility that Chang Haonan thought of. However, the logic of the grid generation algorithm he designed specifically reduces the computational complexity for large models. In other words, no matter how complex the model is, the calculation time will be extended indefinitely, and it will not lead to problems such as memory usage. In short, it is impossible to get stuck here. Have you tried manual assembly? Chang Haonan asked after thinking for a moment. I tried it, but the other parts are easy to say. When it comes to the central lifting body, even if there are only minor changes in the sub-region grid, the assembly input file must be modified accordingly. If it is all done manually, it will probably take..." ?Yao Mengna raised her head slightly and calculated: It takes about 60,000 lines of code to be entered manually 60,000 lines of code may not sound like much, but considering that TORCH Multiphysics cannot be automated, parameters must be adjusted manually, which definitely involves a lot of calculation and conversion issues. Whats even more troublesome is that, as a new software, there are relatively few people who can complete this process proficiently. In short, it is obviously not something that can be completed in a short time. ?When Chang Haonan tested the software before, it was impossible to use this model with hundreds of sub-areas and hundreds of millions of grid cells to test due to tight time and heavy tasks. In fact, since TORC Multiphysics was released for such a long time, judging from the feedback from various users, no one has used it on a model of this size. Thats why I never found the problem before. If manual assembly cannot continue ?Chang Haonan frowned slightly and tapped his fingers lightly on the computer case next to the keyboard. Have you ever considered giving up the structural restrictions of the grid nodes and considering dynamically adjusting the model rules according to the changes in the object boundary when the surface deforms? ?There was a moment of silence. Yao Mengna and He Ming looked at each other. Judging from the expressions of the two of them, they didn''t even fully understand the meaning of Chang Haonan''s words. For example. Looking at the two people with clear eyes, Chang Haonan had no choice but to explain further. But after searching around for a long time, I couldn''t find any paper or pen. ?Yao Mengna, who knew Chang Haonan''s habits, quickly took it out of her bag and put it in Chang Haonan''s hand. For example, we can compare the calculation area to a linear elastic body and determine the displacement of the grid nodes by solving the elastic mechanics equations..." The algebraic model means that the displacement of the grid is obtained by multiplying the moving boundary displacement by a coefficient. The coefficient takes 1 on the moving boundary and 0 on the far field boundary. The inner field is interpolated according to a certain function..." After some calculations and explanations, Chang Haonan drew a circle on the already filled paper: "Of course, this is not possible everywhere. For too complex parts, each side of the grid unit can be regarded as a spring. The spring coefficient is related to the side length. When the boundary moves, the force balance of the nodes of the spring system can be solved by solving the problem. Problem determining new point location In this way, the size, shape and position of the grid points can be adjusted and controlled during the calculation process, and the requirements for the grid boundaries will be much reduced. There was another moment of silence. There is this function in TORCH Multiphysics? After quite a while, Yao Mengna asked in a tone that was somewhat doubtful about life. She was obviously personally involved in the development of this software, but after thinking about it for a long time, she really didnt remember that there was such a way to play it. "of course not." Chang Haonan clicked the tip of the ballpoint pen back: But you can change it yourself! (End of this chapter) Chapter 492 Too advanced to be displayed Chapter 492 is too advanced to be displayed Can you change this thing yourself? He Ming next to him was completely confused after hearing this. ?Although he has used various engineering software, he has never heard that users can modify the packaged software by themselves. There may be some technical means to achieve this, but it is obviously not feasible from a legal perspective. You must know that TORCMultiphysics is not some foreign software that has not been registered in China. You can use the user agreement as waste paper. They are the models of my countrys development of intellectual economy who have been specifically named and mentioned above, so we should still respect them. Of course it is impossible to directly modify the packaged software itself, and the user agreement does not allow it. ?Chang Haonan first waved his hands to deny it, but then changed the subject: But what I just said, dynamically adjusting model rules according to changes in object boundaries is a new non-structural mesh generation idea that does not require modifications to the software itself. TORCHMultiphysics was designed in anticipation of the current situation where users have special needs and we are unable to update the version in real time in a short period of time. Therefore, we have reserved a highly customizable interface in advance. What does custom interface... mean? When Yao Gong gave us training before, he didnt seem to mention this part? ?He Ming felt like an outsider, unable to get into the world of these two people. But just now I just didnt understand the specific technical explanation, and now I dont even understand the noun itself. That is, we can write our own toolkits that comply with the requirements of the software protocol, as enhancement or modification modules, to achieve functions that the software does not have but we want to achieve. From this perspective, TORC Multiphysics has almost unlimited possibilities in theory. ?Yao Mengna explained from the side. As for why it was not mentioned during the training... Speaking of this, she glanced at He Ming with a meaningful look: This kind of module needs to be designed and written from scratch, and it can only be done by people who are very proficient in programming languages, algorithms, and mathematical theories such as solving high-dimensional nonlinear partial differential equations, so "Understood." Hearing this, He Ming nodded quickly, indicating that Yao Mengna understood. It would be unseemly to say any more. After all, lies dont hurt, the truth is the sharpest knife. Forget it, in the future, as everyones application level of simulation improves, the efficiency problem of block assembly of this large model will become more and more common, and it will not be your problem alone. Chang Haonan thought for a while and felt that it was really unreasonable to let current users expand this core function by themselves: Please put these two parts aside for a while. The feedback from various parties recently is also being analyzed and processed. After I return to the capital, I will iterate a new version as soon as possible. A new version will be released so soon? Yao Mengna next to her was also troubled by this matter, but when she heard what Chang Haonan said, she still looked at Chang Haonan in surprise: The total number of users of this software is nearly 800. Every major update iteration is a major project. As a technician who participated in the development process of TORC Multiphysics software, Yao Mengna is familiar with the situation of her own products. Software these days rarely has an online update function, and many computers are not connected to the Internet for safety reasons. Updates can only be done offline, so it is impossible to update whenever there is nothing like more than 20 years later. Small version. ?Especially for many industrial software that pursues stability, it may not be updated every few years or even more than ten years after installation. (The author went to a petrochemical company to work on a project in 2017 and found that their production monitoring software was customized from our school and has not been updated since 1996. In order to run this software, they even kept two win98 systems. computer) TORCHMultiphysics initially had 744 domestic users and 17 foreign users, and more were added during this period. Software updates are sometimes more complicated than installing new software. In some cases, the manufacturer may even need to send technical personnel for guidance. In short, it is a very troublesome thing to think about. However, Chang Haonans understanding of software updates is naturally completely different from that of people of this era. ?Especially for numerical calculation software used for research and some industrial control software used for production, the speed of version iteration is critical. Why did China never catch up with similar foreign products in the field of industrial software in the previous life? ? To a large extent, this is because there is no way to collect enough user data to support efficient version update iterations. Many manufacturers are limited by this and have to install castrated versions of industrial control software customized from abroad for the machine tools they produce. ??Not only cannot fully unleash the performance potential of the machine tool itself, but it also gives valuable data to foreign companies in vain. Its been more than three months, and its time for an iteration. Especially for this key function, not only you, but other brother units may also use it at any time. ?Chang Haonan chose the long-story explanation. ?Of course, the problem Yao Mengna mentioned does exist. If nearly 800 users are updated, Torch Company will indeed not be able to withstand this kind of work intensity. ??Moreover, the current level of TORCMultiphysics is in the form of dimensionality reduction, and a balance needs to be struck between improving user stickiness and ensuring technical barriers. Some things are still too advanced to be displayed. So after a pause, he added: "As for the number of updates, this time, including future updates, will definitely be given priority to users of the professional upgraded version. As for the professional version, it is necessary to postpone the update according to the actual situation, or integrate several small versions into one large version. release." Like what I just said, the overlapping grid algorithm based on unstructured grids is the latest technology, and it may even have to be delayed for several years before it is released to all users. ?He Ming, who was standing behind, brightened up. ??The status of being a user of the professional upgraded version is immediately reflected. This is also why the products of many major Internet companies will treat different levels of users differently. ??If you dont let rich brother experience the feeling of being superior to others, why would rich brother throw money at you? Chang Haonans reasoning is the same. Although he does not need money from Brother Fu, he also needs to increase the recognition of users of the professional upgraded version. After all, after the official version is released, the price of the extra-large cup will probably be more than an order of magnitude higher than that of the large cup. And another point is that this can indirectly promote foreign companies to take the initiative to carry out technical exchanges and cooperation with China. Just like the automotive research institute jointly established by Fiat and Jinling Automobile. ??In fact, what automotive technology does Jinling Motors have that is worthy of Fiat''s cooperation? Its nothing more than obtaining software authorization in advance through this method. What does it mean to use a point to make a face? This is called using a little to make a difference. Besides, Chang Haonan is not doing charity. ?He can also benefit from it - As long as the entire industrial software industry chain is deeply integrated, Torch Company, although not large in scale, can still have a high say in all walks of life. The right to speak of Torch Company is naturally that of Chang Haonan. Will this lead to regular version... er, I mean, what are the opinions of professional version users? Although it felt good to be treated differently and enjoy privileges, after all, the boss of the company was still in front of him, so He Ming decided to express his concern for the overall situation. In the end, Chang Haonan waved his hands nonchalantly: On the contrary, only in this way can we show that our software has a transcendent status in the industry and has a noble pedigree! Just like the machine tools you are using now, I just saw a few Swiss-made Starrags in the workshop. Is the model they exported to us a fully functional version? ?He Ming has been working in this industry for almost thirty years. "Breaking through foreign technology blockades" is almost the epitome of his entire career. ?In this context, it is indeed difficult for him to imagine that one day he can reversely block others in the technical field. But now that Chang Haonan mentioned it like this, he suddenly felt that it made sense: Thats right, anyway, I heard from Yao Gong that even the professional version sold to ordinary users is much better than similar software such as PEGASUS now (End of this chapter) Chapter 493 I only need to make a few moves to become the leader of this era Chapter 493 I only need to make a few moves and I am already at the pinnacle of this era! The localization and improvement work of the J-11 aircraft is multifaceted, and structural upgrades are not the only thing that can be done. So after receiving Chang Haonans suggestion, Institute 601 and Factory 112 quickly began to take action and adjusted their work focus in the recent period. Chang Haonan, after a short vacation, flew back to the capital. With regard to the system of colleges and universities, if nothing else, vacations can still be guaranteed. In 1997, the National Holidays and Anniversary Days Regulations, which had been promulgated and implemented in 1949, were still implemented nationwide. There were only two days of holidays on the National Day. Fortunately, since 1995, double holidays have been implemented every week, so including a weekend, I can take four days off. Its a little closer to home, so you can go back to your last trip. So when Chang Haonan came back to the computing center of Beijing Hang University and gathered the technical staff involved in software maintenance and updates for a meeting, it was already after the four-day holiday of National Day. Is this going to be a version update? ?After hearing about the sudden software plan at the morning meeting, the first reaction of most people was similar to that of He Ming a few days ago. Chang Haonan sat at the head of the conference room and glanced at the dozen business backbones in front of him who were divided into two rows and sat opposite each other: The new grid generation method will be updated to users of the professional upgraded version first, and the professional version will only retain relevant basic functions. The users of this professional upgraded version are highly professional universities and scientific research institutions involved in military projects. They have relatively strong independent capabilities. There should not be too many situations where we need to send people to upgrade. The person in charge of the after-sales business finally looked a little better. After taking a sip of water, Chang Haonan continued: "In addition, this overlapping grid generation method based on the unstructured grid method has no new requirements for the time and space discretization methods in the subsequent calculation process, so basically it only needs to be overhauled to the grid generation module. Not much has changed in other parts. ?At this time, the benefits of clear thinking in previous software design are reflected. ??If it is some **** code, then if it affects the whole body, such a big functional change may require the software to be rewritten... Ohits okay ?At this time, except for a few people responsible for the grid generation module, everyone else breathed a sigh of relief. Those who work in software, no matter what age they are, their working conditions are pretty much the same. As long as the project comes, just working overtime is easy. Sleeping in the workplace is commonplace. Some people who are familiar with each other have even begun to joke about Tian Zhaoyi, the person in charge of the grid generation module who is sitting blankly: Come on, man Someone tapped him on the shoulder. Think on the bright side, our company pays overtime pay Someone sighed with a concerned expression on his face. Yeah, its almost the end of the year. It would be nice to make some extra money to go home to my wife and children for the New Year... Some people even sounded a little envious. Human beings'' joys and sorrows are not the same, I just think they are noisy.jpg ?However, before they were happy, Chang Haonan changed the subject: No need to envy them...overtime pay, everyone can have it..." Hearing these words, the smiles of everyone who had been joking lightly just now suddenly solidified on their faces. "During this period of time, users have come back with a lot of opinions and suggestions. I just took this opportunity to revise all these areas together. I have probably seen it, and it is not a big problem. Try to release the first iteration of the new version within this month! People are not worried about scarcity but about inequality. ?Now everyone has overtime and money, so I dont feel there is any imbalance. ?Moreover, after the trial version of the software was released, most of the staff who were seconded to participate in the development returned to their original units. Those who are still here are all those who have directly transferred their working relationships. ? Will choose to give up a stable job in a research institute. At this point, it seems that the first meal may not necessarily lead to the next meal. New state-owned enterprises have joined, and they are more or less interested in TORCH Multiphysics, and even the entire field of numerical calculation. Academician Li Jie of the Institute of Computing Technology has acted with integrity in this matter. He allowed everyone to choose whether to stay or stay, which was a strong support for the Torch Group. ?Of course, it can be regarded as a thank you to Chang Haonan for helping him open up the nationwide supercomputing and server market. Shuguang Group, which could only rely on financial allocations to survive last year and even considered selling part of its shares to Dream Company to raise funds, has achieved positive profits this year. Although it may not seem like a big deal at the moment, it is the beginning of Chang Haonan wielding a **** against the former. After deploying some less important work, Chang Haonan asked the heads of other modules and businesses to go back to work first. Only a few backbones responsible for the grid generation module are left. Although in the early stages of software development, he requires all personnel involved in R&D to understand the basic situation of other parts, this is mainly to avoid some compatibility problems during the development process of different modules. Nowadays, software upgrade and maintenance work has become highly specialized, and the knowledge and skills required between different modules vary widely. Except for a very small number of people, it is no longer necessary or possible to understand everything. Mr. Chang, what is the specific difference between this non-structured overlapping grid method and the previous old method in terms of generation logic? ?After there were only a few knowledgeable people left in the entire conference room, the person in charge, Tian Zhaoyi, went straight to the point. ?The time is tight and the tasks are heavy. In addition, this is an area that he has never touched before. ?It feels like I am back to the time when I was just studying for graduate school many years ago. Is there any literature that I can refer to? An assistant next to him also asked. Generally, when researchers want to enter a new field that they have never explored before, they will start with some review literature to get a general understanding, and then go through the specific research directions bit by bit. "No." Chang Haonan shook his head decisively: Actually, even this term was randomly thought of by me some time ago. The expressions of the people on the other side were stagnant. ?Well, its our boss first initiative again. In the few months since they joined Torch Group, they have encountered more original technologies than in their entire careers. However, the unstructured overlapping grid method, like the structural overlapping grid method, requires overlapping grid system assembly before performing flow field calculations, that is, digging holes and determining the interpolation boundaries between grids and their host cells. Chang Haonan said as he opened the notebook on the table in front of him. As the research content becomes more and more in-depth, even he himself can no longer solve all the problems by brainstorming alone. Especially now that there are not enough scientific research points to directly use the system to solve the problem, it is even more necessary to put some ideas into the system. Organized out: The difficulty is that there are no topological relationships between grid units and grid nodes in unstructured grids like in structured grids, so parts such as dynamic automatic grid assembly, efficient search technology, and inter-grid interpolation, All require new algorithms to complete. The three most important parts are the classification of grid nodes and the definition of boundaries between grids, the search for host units, and the reconstruction of interpolation boundaries between grids ?While Chang Haonan was introducing his ideas to several people, he was also thinking about another thing in his mind. In engineering practice, the core of the new version of TORC Multiphysics is to use limited memory and computing time to implement this complex non-structured overlapping grid generation method, focusing on the parallel computing technology that has been applied in the software. But academically, the focus is on the front, the part he has already written in his notebook. That is, the concept of unstructured overlapping grid itself. So, he was thinking about how to promote this concept. ?After much deliberation, I can only use some leftover results to publish a paper Look, I have a very cool numerical simulation theory here. What? Do you want to do research but dont have the tools? ?That''s easy to say, I have it here. You can buy it and try it out first. You can experience this new method of mine and I''m definitely not bragging. However, the publicly released professional version does not provide supporting follow-up algorithms for the time being, and can only be used for theoretical research. ??If you want to use this method to solve practical problems... ?Then I''m sorry, this can''t be done. You can choose to wait, the updated content of the professional version may be 1-2 years behind the level. ??If you are not willing to wait, you can also refer to the Italians and choose to cooperate with Chinese institutions or companies that have professional upgraded version authorization. Perhaps our Torch Group also undertakes related numerical calculation business. It is just that R&D results need to be shared to a certain extent. ?This...you guys shouldn''t have any objections, right? (End of this chapter) Chapter 495 One day, with the sword in my hand, I will kill everyone in the world. Chapter 495: One day, with a knife in hand, I will kill all the dogs in the world! Even though the online paper submission function in this era is very anti-human, and the schools Internet speed is very poor, after a lot of trouble, Chang Haonan still submitted the paper before the end of the day. After finishing this series of things, Chang Haonan turned off the computer, tidied up his desk briefly, picked up his coat from the hanger next to him, and called to Xu Yang, who was also about to leave: Shall we go out to have a meal together tonight? For players in the latter position, positions other than first-level work and communication are equally meaningless. The core idea and most of the content of this article was completed by Chang Haonan, so there is obviously no reason to be the co-first author. Therefore, she simply handed over the second work to another member of the project team quite generously, and she just put her name at the end. But in terms of workload, she did contribute a lot. So Chang Haonan planned to treat the other party to a meal as a courtesy. If nothing else, the work of polishing the paper alone would be worth at least several thousand yuan after more than ten years. And its impossible to hire someone of this level to do it for you. Xu Yang turned around, thought for a moment and tilted his head slightly: "That''s fine, but... I want to try Lao Mo, how about it?" ?The so-called "Lao Mo" is the first premium Russian-style Western restaurant open to the public in Beijing. In the hearts of many older generation Beijing residents, he has a special status. ?Of course, the price is also quite exaggerated. ?However, as the general manager of a second-tier state-owned enterprise, Chang Haonan no longer cares about the price. He nodded while putting on his coat: "Of course, it''s just a little far away. I''ll ask Zhu Yadan to pick us up." After speaking, he picked up the phone receiver next to him and dialed Zhu Yadan. I thought you would prefer somewhere more trendy like Maxims. French food? Ive eaten it many times with my tutor when I was studying abroad. Its nothing new... ?Chang Haonan locked the office door and went downstairs with Xu Yang side by side. In the next few days, Chang Haonan''s paper submission caused quite a stir. Eight time zones away, Cranfield University, UK. Professor Roger Elinor has just returned to the office from a morning meeting, made himself a cup of espresso, and is ready to start a new day of work. After turning on the computer, he opened his school email as usual, ready to see if there was anything he needed to reply to. At the top of the list are usually a few personal statements. ? Cranfield University is not well-known outside the industry, and you will hardly see this name on any university ranking list - Since it does not recruit undergraduate students, it does not meet the "shortlist" requirements for most ranking lists. But this does not mean that Cranfield University is not good. On the contrary, in terms of strength alone, its engineering school and business school are among the best. Especially in the aviation major, the level of integration of theory and practice is extremely high. Professor Elinor is a master in the field of aerodynamic structure design and performance analysis. ??He has participated in almost all key aerospace development projects of Rolls-Royce. ??Countless students apply to study with him every year. It''s a pity that he has already selected the postgraduate quota for next year, and there will be no other opportunities. ?Eleanor rarely wastes time replying to these emails that are destined to be meaningless, but just puts them into the recycle bin. ??Next, there are a few boring work emails whose contents can be guessed just by looking at the titles, and a review invitation from the editorial team of ComputerMethodinAppliedMachnicsandEngineering magazine. He subconsciously prepared to forward the email to several of his doctoral students. ??But when the mouse pointer moved to the forward button, a keyword in the email title suddenly caught Elinor''s attention. intergridboundarydefinitionmethod How to define grid boundaries, which is exactly what he is studying recently. As a senior consultant of Rolls-Royce, Elinor naturally participated in the research and development of the EJ200 turbofan engine planned to be equipped with the EF2000 fighter jet. To be precise, he participated in the work of wiping the **** of the EJ200 engine. ?When initially designing this model, confident British engineers continued the design of the RB199 engine in order to reduce weight to the maximum extent, without setting variable camber guide vanes at the low-pressure compressor inlet. It should be said that with the experience of the previous RB199, Rolls-Royce engineers are already familiar with this. The excellent low-pressure compressor design replaces the role of the guide vanes in suppressing surge and reduces the weight to a considerable extent. However, designers in the early years ignored a problem. ? Comparing to the RB199 installed on a fighter bomber/interceptor aircraft, the EJ200 is installed on several levels of higher maneuverability. Therefore, during flight, especially supersonic flight, the engine itself needs to withstand huge overload. In addition to the rectification function of the inlet guide vane, its fixed leading edge can also be used as a load-bearing member to form a three-point support together with the two support points at the front and rear of the compressor rotor. ? ?The EJ200, which has eliminated this support point, is at risk of wear and tear on the low-pressure compressor rotor and the casing when flying under heavy overload... ? This problem has been going on for a long time, so much so that the first two prototypes of the EF2000 fighter jet could only be equipped with old RB199 engines for test flights. ?As a last resort, Professor Elinor, who was unwilling to participate in such a multinational cooperation project, was invited to handle the funeral affairs. The rotation of the compressor blades is a typical complex unsteady flow problem. In the past, few people have conducted research on low-pressure compressors from the structural and deformation dimensions. After all, engines without leading edge support are generally high-bypass ratio turbofans, which are mainly installed on passenger aircraft. It is impossible to perform crazy +9g maneuvers, so the overload capacity requirements of the engine are far less stringent than those of the EJ200. At the beginning, Professor Elinor tried to proceed step by step, using the traditional finite volume method based on dynamic grids for structural calculations. Then he discovered that the grid generation step alone would take about 8-9 months. Every improvement plan needs to be done again. This efficiency is obviously unsatisfactory. So, almost from the beginning, he realized that he had to build the wheel from scratch. But even for him, how could such a thing be possible? Therefore, when he saw an article studying the same content as himself, he was naturally very excited. ??Although this article has just been submitted, CMAME is, after all, the top journal in the field of computational structural mechanics. ?The articles that dare to be submitted here have passed the initial review by the editor and are almost impossible to be complete academic waste. Elinor made up his mind that as long as this article could give him even a little inspiration, he would give a "directly published" conclusion. After a long wait of seconds and years, the complete document content was finally presented to him. The grid nodes in the overlapping grid that participate in flow field calculation are called active nodes, the grid nodes that do not participate in flow field calculation are called inactive nodes, and the grid nodes that are responsible for information transfer between grids are called inter-grid interpolation boundaries. point" Using the combined parameter s of object surface distance and grid scale as the criterion parameter for classification Unstructured overlapping grid? Eleanor quickly found the point of the entire article. When the object moves or deforms, the non-structural mesh can make corresponding deformation adjustments according to certain model rules according to changes in the object boundary... ??? With his pupils trembling, he read this paragraph over and over again several times, and finally determined that it was what he understood. Isnt this specifically designed to solve my problem? Elinor told herself again and again not to be too happy. ?Because he is afraid that this will be an empty joy, which will lead to sorrow. But the hand holding the mouse trembled slightly, which still revealed his inner uneasiness. ?Eleanor would force himself to read almost every paragraph of text at least twice to avoid missing any key points or making mistakes in understanding. ?However, the further back he looked, the faster he browsed. The author''s ideas are extremely smooth, and the theoretical derivation and numerical calculations are all done in one go. There is almost no part that requires him to ponder over and over again. You know, this is a new concept that he has never been exposed to before. To be able to write to this level, you must have extremely high academic skills. It is not my skill to write an article that is complicated and difficult to understand, but it is really awesome to make it understandable to people who read it for the first time. Host unit search Hybrid unstructured mesh overlapping Unstructured overlapping grid interpolation method ?Eleanor became more and more excited as he watched, and had long forgotten about "don''t open the champagne too early". ? He ??is even sure that according to the author''s thinking, what follows this part should be the unsteady N-S equation solving algorithm based on dynamic unstructured overlapping grids. ?As long as you have read this part, at Elinor''s level, it will not be difficult to transform theory into practice and apply similar technologies to your own projects. However. When he turned to the next page of the document, the content that appeared turned out to be... ?Conclusion This article is over... Eleanor was immediately stunned. His mood was like reading a novel and had just reached the climax. As a result, the chapter is broken! At this moment, he even had the urge to take a knife and cut the author along the network cable. After a while, the professor slapped his hand heavily on the keyboard. "Snapped-" fxxkWhy is it gone here? Its ten thousand days a day, please give me a monthly ticket! ! (End of this chapter) Chapter 496 Why not contact the author himself? Chapter 496 Why not contact the author himself? An article left Professor Elinor scratching his head and scratching his head. He has basically determined that if the unstructured overlapping grid technology mentioned in the paper is applied to several ongoing projects at hand, it can greatly improve computational efficiency. But the content that ends abruptly seems like the author is deliberately tempting his colleagues. Obviously, we are already standing in front of the door to the new world. but No key! ? After taking several deep breaths, Elinor calmed down a little bit from his dissatisfied mood. As a senior professor with a high level of research, he does not have to wait for others to put things into his mouth. On the other hand, he was now preoccupied with wondering how this grid technique could be used to solve the N-S equations, or even the numerical solution of Euler''s equations. ??Moreover, he has been immersed in the aviation field for many years and has absolutely no shortage of contacts, especially in Europe. So, after thinking for a moment, Elinor forwarded the paper to another email address and attached some of his own thoughts at the end. CMAME is not a comprehensive journal with an extremely high impact factor. If you can make a breakthrough in a certain direction related to numerical calculation, it is enough for publication. There is absolutely no reason to ask for additional content because of this. But Professor Elinor also has dignity. Eleanor estimates that an additional toolkit or new program may be needed to accommodate this never-before-seen grid technology. ?He, Roger Elinor, is also a well-known figure in the field, and he has a lot of face. "well" After doing this, he leaned back in his chair and began to think about what review comments he should give. ?Such an epoch-making article, if he were to just offer some dispensable, literary opinions, it would be an insult to the author, the journal, and even himself! The professor let out a long sigh: If I have to say it, the details of writing articles and using words and sentences need to be improved. ??Although the professor himself is not an expert in software programming, he still has the vision. Subjective initiative still exists. However, according to the title and abstract of this paper, the author did not originally say that I wanted to study this part. Some things, when written by ordinary authors, are called grammatical errors, but when written by great authors, they can only be called personal characteristics. Only worthless academic **** will make reviewers focus on this kind of place. But after thinking about it for a long time, I really didnt find any comments that I could write. ??The author''s theoretical foundation is quite profound, and the overall structure and reasoning logic of the paper are very smooth. He just read it almost in one go. Whats more, its an achievement that may usher in a new era of computational physics. Although I really dont want to write a draft for you like this, but... This article is really perfect While muttering to himself, he sat up straight again, put his hands on the keyboard, and began to write review comments. Generally speaking, Professor Elinor has several sets of standard templates for articles on different situations, which only need to be slightly modified. But this time, he decided to write a separate one to show respect. Before I could finish writing the review comments, the phone on the table suddenly rang. Elinor frowned, but had no choice but to put down what she was doing temporarily and pick up the phone receiver: Hello, Roger Elinor, Cranfield University. Roger, its me, Fernando. A burst of English with a Spanish accent came from the other end of the phone, which made his eyes light up. ?The other party was Fernando Lorenzo, whom he had just contacted via email. As the head of Dassaults software department in the past, he was almost naturally the first person that Elinor just thought of: "Fernandinho, what a coincidence, I just sent you an email ten minutes ago. If you have time..." Under normal circumstances, it would take several hours to read such an article, so Elinor subconsciously thought that the phone call was just a coincidence. ?But halfway through his words, he was interrupted by Lorenzo over there: Ive seen your email, so I called you. Have you finished reading it? So quickly? Of course I didnt start reading the email after you sent it. ??Lorenzo sounded a little helpless: This paper was also sent to me for review, so I have been reading it this morning. I just received your email and called you back. ?Eleanor also reacted this time. ?Given the content level of this article, there are only a few experts qualified to serve as reviewers. ? Among them is naturally Lorenzo, who was once a senior engineer in Dassault Software Department. What do you think of the thoughts in my email? Elinor thought for a moment and then immediately got to the point: If a complete set of numerical calculation technology can be developed based on this grid generation algorithm, it may have a decisive impact on the entire field! As a technician, of course he is also ambitious. ??Although he is now considered successful in the UK, Elinor is still just a senior engineer. There is still a long way to go before establishing a sect or at least leaving a mark in the industry. ?However, the response on the other end of the phone poured cold water on him: Roger, this isnt that easy. This new grid removes the structural restrictions of grid nodes and can dynamically adjust the boundaries according to model changes. It looks really beautiful. Speaking of this, Lorenzo changed the subject: But you also have to consider that when using this algorithm to assemble an overlapping grid system, you need to find the host unit of each grid node in other sub-grids, so the amount of calculation required for the host unit search will be very huge. This is not to mention the cumbersome subsequent numerical calculation process itself because there is no topological relationship between grid units and grid nodes. In short...this is not a problem that can be completely solved in a short time. Although Lorenzo''s attitude was quite authoritative, Elinor was still a little unwilling: Given the current situation, how long do you think it will take to implement this method? The problem of EJ200 is more troublesome. The easiest way is of course to directly strengthen the structure, but that will cause the performance of the entire engine to be terrible, and it will definitely not be accepted. If you want a more clever processing method, with the current design method, you will need a lot of bench testing and even flight testing. ??But according to Elinor''s understanding of the so-called "European joint project", if he really delays in making a decision on the core component of the engine, then the EF2000 will be useless in a few years. So the best way is to rely on heap numerical calculations to reduce test time. He needs this technology. For me, this is almost equivalent to starting from scratch, and past experience is of little reference value. After a period of reflection, Lorenzo finally spoke: Conservatively estimated, it may take 2-3 years to develop a first version of the software that is roughly usable, but the algorithm is advancing too fast now, and it is difficult to guarantee what new situations we will face by that time... ?Although it is put more euphemistically, the meaning is... no. Actually, I have always had some doubts. After a brief pause, Lorenzo continued in a confusing tone: Why dont you try to contact the author of this article? (End of this chapter) Chapter 497 No modifications required, just publish! Chapter 497 does not need to be modified, just publish it! The author himself? Hearing this, Elinor realized that he had not read the author information of the article. Because at the beginning, he was planning to leave it directly to students for review. Because the keywords in the title aroused interest, I decided to click in and take a look. In the end, I only looked at it for a few hours, and I had long forgotten those things. Eleanor quickly turned the article back to the first page. Generally speaking, the author information will be indicated below the homepage or title of the reviewed article. ?CHANGHaonan ?TORCHtechnology China? Lorenzo first explained, and then asked: ?Another example is Airbus, which brings together the best of European aviation technology. It has taken more than 20 years of development to reach its current second place in the industry. It was indeed October 1997. ? He ??has indeed been concentrating on the structural strength of the EJ200 engine in recent months, so he does not have much energy to pay attention to industry developments. It only takes three months? Can you make a name for yourself in the industry? However, in the field of engineering, especially in the field of aerospace, even if new forces rise or old hegemons decline, there is a gradual process. How can there be a saying that a company suddenly pops up and then takes off immediately? Lorenzo on the other end of the phone smiled and responded: This company is a rising star that was only officially established in July this year, but it is very strong in numerical calculations, especially in the field of aerospace calculations. Many research institutions, including our school, have already established cooperative relationships with them. " You must know that Cranfield University is almost the first university in the UK to systematically train international students in the aerospace industry in China, which is quite well-established. "Of course I know. For Boeing''s merger with McDonnell Douglas, I remember you were involved in the negotiation process at that time?" ? For example, McDonnell Douglas was absorbed by Boeing. Although the news itself was indeed explosive, the decline of McDonnell Douglas actually began in the mid-1980s. Uh... this author comes from a... Chinese company that I havent heard of. ?Eleanor, who has been immersed in the industry for many years, considers himself to be well-informed and has heard about even the slightly famous peer organizations in the industry. also includes Huaxia. You should know that at the beginning of this year, Airbus, the European Aviation Agency and China reached a tripartite cooperation agreement, right? ?Eleanor was so confused that he turned his head and glanced at today''s date in the lower right corner of the computer. It is true that it has only been established for three months, but I estimate that the technology research and development of this company has been carried out a long time ago. But the name of this Torch Technology is really... "July?" Wellit seems that Roger, you have been a little bit out of touch in recent months The first time I heard it. ? Boeing''s merger with McDonnell Douglas and the series of butterfly effects it triggered can be said to be one of the biggest news since the birth of the aviation industry, and it is impossible for Elinor not to know about the related news. Its just that he didnt understand why the other party suddenly mentioned this topic. The author of this paper, I had direct contact with him during the negotiation. You are very young and very capable. The meteorological risk prediction system that JAA has just put into use recently was developed in cooperation with one of his achievements. On the other end of the phone, Lorenzo also had the paper open on his computer. ?However, what appeared on the screen at the same time was the latest user agreement sent to him by the TORC Multiphysics software for confirmation. Written in each of the six working languages ??of the United Nations. After completing the signing, they can obtain the corresponding trial version. Before this, Lorenzo only vaguely felt that among the developers of this software, there should be members who were proficient in aircraft design, but he had never connected the Torch Group with the young designer he had met in China before. But today, he suddenly discovered that the unit behind Chang Haonan''s name was TORCHtechnology... Its all connected! Actually, if you think about it carefully, it is somewhat reasonable. After all, when Lorenzo went to China for negotiations before, the other party had already introduced an aircraft icing simulation program, which shocked him at the time. ?Its really hard for normal people to expect that just a few months later, the same person would develop a new, more complex software, and it would be a great success... "So...you mean, this company called Torch Technology will have related technologies to match it?" Elinor was still doubtful. After all, judging from the final conclusion of that paper, the author also mentioned that follow-up work is to "consider the possibility of practical application." It is entirely possible that after a phased result is achieved, it will be released immediately. This is a very common situation in academia. CMAME is already a top journal in the field. No matter how much content is filled in this article, it will not be published in any better journal. ?Then it would be better to split it up and publish one article into two articles. I cant guarantee this. After all, I havent got this software yet. I can only know some basic information through some old friends in Italy. ??Lorenzo obviously didnt dare to guarantee it. ?But then his tone changed: However, if anyone is likely to develop this technology to the point of practical use in a short period of time, it is basically only them. ?Given his status in the fields of numerical computing and software development, being able to say this obviously represents a very high degree of recognition. "alright, I got it." ?Eleanor took a deep breath, prepared to put down the phone, and think about what to do next. "Wait a moment." Lorenzo on the other side of the phone quickly stopped him: Your review comments for this paper, you... Publish directly, of course directly publish! ?This time, Elinor had almost no hesitation at all. ??Just kidding, you want to use other peoples technology for a project, but you still get stuck on other peoples papers? Leave aside the fact that if only one editor requests rejection, in many cases the opinion will be excluded directly. Lets just say that CMAME is not the only top journal in the field of numerical computing. In case people switch to the old opponent JCP, isn''t there no place to cry? Some papers are proud to be published in top journals. But there are some papers that top journals are proud to publish. ?As for the article he is reviewing, after it is published, I am afraid that it will raise the impact factor of CMAME to a higher level in two years! Thats good, thats good. Lorenzo said twice that it would be good. Obviously, direct publication is what he meant. The two exchanged brief greetings for a while, and Eleanor, who was still worried, hung up the phone. Collaborative R&D is definitely not possible. At least not openly and with great fanfare. EJ200 is a military project. It suddenly said that it would share data with China and engage in joint development. It would be fine if it was only the UK, but this is a European joint project. I am afraid that just the cooperation license can take several years. But in the second part of the paper, the author once mentioned that a set of "self-developed" computing tools were used during the research process. Eleanor didn''t pay much attention when he looked at it. But looking back now, combined with the other party''s research unit, it is still a company. seems to be some kind of hint. Thats not right, its an explicit statement. "Come and buy it~Uncle~" kind of thing. ?Thinking of this, Elinor quickly reopened the email interface and copied the author''s contact email address into the recipient column... (End of this chapter) Chapter 498 Mo Gai Zhi 9, the new business of Torch Group (please give me a review) Chapter 498: Mo Gaizhi 9, Torch Groups new business (please give me a monthly ticket...) Back to Chang Haonan. ?There is no need for him to wait until the paper is published before taking any action. ? Within two days after the manuscript was submitted, a new content was added to the official website of Torch Group and the business list for telephone consultation. ??For users who lack computing resources, have limited technical strength, do not have access to the "professional enhanced version" TORC Multiphysics software, or are simply too lazy to do it themselves, Torch Group can provide a variety of customized numerical calculation solutions. In other words, the customer provides the 3D model and other research parameters, and we are responsible for calculating the results. For this purpose, Chang Haonan also set up a separate business department. Personnel... ???Of course I picked it up directly from Beijing Hang University. ??Anyway, Tang Lintian just wanted to support him now. He only wanted a few people, so there was no way he would have any objections. ?Furthermore, in the 1990s, colleges and universities not only ignored teachers side jobs, but also encouraged them... Master...Mr. Chang, why are our businesses divided into engineering calculations and scientific research calculations? Arent they both the same? So the technical problem is not big. "ah?" ?Chang Haonan lightly knocked on the table next to him: Thats why its called scientific research computing! Its mainly about business. Fortunately, Professor Liu''s mentality was not bad, and he quickly adapted to the new part-time job, completing his identity transformation from Chang Haonan''s quasi-mentor to Chang Haonan''s senior brother to Chang Haonan''s assistant, and finally to Chang Haonan''s subordinate. Generally speaking, Liu Hongbo and Fang Zhen, who will graduate in the next year, can basically handle most tasks that are not too troublesome. ?As a result, Liu Hongbo was sold to Chang Haonan by Tang Lintian without his knowledge, and he naturally became the manager of this "Numerical Computing Business Department". If that doesn''t work, you can also ask Chang Haonan himself to support you. ?Of course, onboarding training for new employees still needs to be done. ?After Chang Haonan confirmed that no one was around, he explained to Liu Hongbo in a low voice: Engineering calculations are calculated based on the conditions and requirements given by the customer until the results are satisfactory. Of course, you have to add money for each round of calculations, but in short, you must be 100% responsible for the calculation results. According to Liu Hongbo''s own words, he is a person who does not love money, so he does not have any business or industry outside. Liu Hongbo suddenly realized. Is this... At this time, Chang Haonan was in the computer room, introducing Liu Hongbo to matters needing attention in related business. No matter which version is true, it is certain that Professor Liu is not very good at business. As for this scientific calculation...it means that no matter what conditions the user gives, no matter what result is calculated, the sale is done in one go. Of course, there are clear provisions in the contract, and there is no guarantee that the conclusion will be consistent with the actual situation..." ?Unsurprisingly, after Chang Haonan introduced the business model and philosophy of the Numerical Computing Business Department, Liu Hongbo asked with confusion. Liu Hongbo was shocked when he heard this explanation: Then wouldnt this... be easy to cause problems? In case someone uses our calculation results for a project ?However, in the version described by Du Yishan, he actually did not dare to try again because he lost all his three previous entrepreneurial ventures. So its used for water Halfway through the words, Chang Haonan nodded and did not continue. ??We are all scientific research dogs, and it is inevitable that there will be times when we need to write a paper. In order to ensure the validity of the results in engineering calculations, the cost of a calculation example ranges from tens of thousands to hundreds or even millions. Ordinary research groups do not have so much money to waste. Whats more, most research does not require such exaggerated accuracy and reliability. Its just that Chang Haonan has always been working on projects that are important to the country, and there is no room for sloppiness. In most cases, problems are solved by numerical calculations with average accuracy, coupled with experiments and experience. The scientific research calculation part can be left to newcomers or interns to practice in the future, but the engineering calculations must be done by experienced personnel. If you have any technical questions, you can ask me. Of course, engineering calculations must face a wide variety of projects. Now we are short of manpower and cannot take on all projects. We can work on the most important projects first. If you are not sure about this, you can also ask me. ?Although Chang Haonan seems to have taken over a lot of life for himself, in fact, there are not many things that really require his personal decision-making. "okay, I get it." Liu Hongbo nodded: "I will definitely lead the numerical calculation business department!" This new position requires him to work under his junior brother, so at the beginning, he was actually reluctant to come. But there was no way, I gave it too much, and it tasted really good in the end. Originally, Liu Hongbos intention was to express his position. When you join the job, why dont you give it a few days to get used to it? As a result, Chang Haonan is directly at a high level: Thats just right. This morning, the company just took over a numerical calculation business. The one from Bingcheng was to design a new rotor and fuselage structure for a helicopter..." Helicopter Liu Hongbos face stiffened: Ive never done it before "It''s all about the same thing, let''s get some exercise... I read the content in the morning. The main content is a numerical simulation of the near-ground flow field of a rotor, and a numerical simulation of the flow field of the rotor/fuselage combination. Not counting Whats too difficult? While talking, the two of them had returned to Chang Haonan''s office one after another. The latter picked up a file bag with a confidentiality stamp from the table: In recent years, the navy and air force have acquired a lot of new equipment. As a result, the army only has new soldiers except new guns. It will definitely not be able to sit still. The only helicopter our country can barely produce now is the Z-9, so we want to develop a general-purpose armed helicopter based on this, which can carry people and fight, and can also be used to earn foreign exchange through exports. Ohif the existing model is improved, it should be okay After hearing the specific project arrangements, Liu Hongbo breathed a sigh of relief and took out a piece of information from the portfolio. He quickly turned to the design part. An aircraft that looks little different from an ordinary Z-9. ??Only a sighting device is installed on the upper left side of the nose, and a set of beams are added on both sides of the fuselage. It doesnt look like an armed helicopter? Liu Hongbo commented hesitantly. This is the original plan that Bingcheng came up with before, but the users were not satisfied with the performance, so the 602 Institute wanted to make more drastic changes to the entire aircraft. A more substantial changefrom UH1 to AH1, or from Mi8 to Mi24? ?Liu Hongbo suddenly felt a lot of pressure. ?Changing a general-purpose helicopter into a special-purpose armed helicopter is an improvement, but in fact it is not much different from designing a new aircraft. The action may not be that fast. After all, special-purpose armed helicopters have high requirements for mobility and mounting capabilities. We still lack some accumulation in this regard. Chang Haonan shook his head. He didnt know much about the situation in the Army Aviation Corps, so he could only explain this: "For more specific information, Bingcheng will send someone to contact you in two days." But in short, this time, they are probably going to change the dolphin so that even the French wont recognize it (End of this chapter) Chapter 499 I accidentally did a Cobra maneuver (fourth update please Chapter 499 Accidentally performed the Cobra Maneuver (Fourth update, please vote for me!) The general helicopter improvement project in Bingcheng, after Chang Haonan paid some attention to it, let it go to Liu Hongbo. The Z-9 platform is, after all, a medium-sized helicopter of 4-4.5 tons, and it is a relatively mature design from France. Even if it is modified, the risk will not be great. At most, it is nothing more than failing to meet the design requirements. Its not like it hasnt happened before. The first armed variant of the Zhi-9, which is the Zhi-9W in that document, finally passed the acceptance test after lowering the design specifications. Whats more, the 602 Research Institute has made it clear that this improved version will not make any drastic changes to the basic design of the Z-9, so there is nothing to worry about. Others in the Torch Group must learn to act independently. This is a good opportunity to practice. After all, for Chang Haonan, the two most important things at the moment are the turbofan 10, which is already on the right track, and the heavy-duty die forging press, which is under intensive preparation and will soon start research and development work in the name of "pre-research" - But for the current Chinese aviation industry, no matter how modified the MiG-21, that is, the J-7, is not enough to arouse everyone''s interest. ?Professor Yan Yongnian of Qinghua University is currently sorting out the remaining design data of the previous semi-finished product and contacting some old comrades who have participated in that project and are now interested in rejoining the construction of die forging presses. Sun Huizhong, the chief designer of JJ-9, is standing in the command station not far from the aircraft, deploying the preparations for this test flight. ?Just when Chang Haonan was trying his best to advertise the TORC Multiphysics software and Torch Groups numerical calculation business. Of course, this does not mean that Guihang and its sister units must keep the information secret. The test flight of the JJ-9 has been "secretly" carried out for almost half a month. The scale of Yunma Factory is more than a little smaller than its counterparts in Shengjing, Haojing or Rongcheng. In addition, it is located in a mountain, and the supporting airport is also relatively cramped. In fact, this aircraft failed to make too many waves in the industry. Even in the circles of military fans and aviation enthusiasts, only the most senior group of people paid attention to it. Simply put, the taste is spoiled. Actually, today is not the first flight of this model. The front and rear canopies of the aircraft were opened to the right, and two boarding ladders were erected on the left side of the fuselage, apparently waiting for the pilots to board the aircraft. In short, the first flight half a month ago was quite low-key, not even as good as the prototype roll-out ceremony attended by provincial leaders. ??There are not even wall-climbing parties joining in the fun. In fact, Chang Haonan has even decided to hold the first working meeting of the die forging press R&D team on the last day of October. Yunmachang, Qianzhou Province. Technically speaking, the JJ-9 can indeed be regarded as the ultimate improved version that has a direct lineage with the MiG-21. The No. 01 prototype of the JJ-9 was painted in red and white and was parked quietly at the end of the takeoff runway. Several auxiliary vehicles providing power and air sources were parked next to it, connected to the aircraft by thick pipeline. Therefore, the maintenance work of the aircraft is usually carried out directly on the runway. Anyway, there may not have been a chance to take off a plane here in the past month... Considering the relatively remote geographical location of Yunmachang, it takes a lot of effort to get here not to mention from the capital city, but even from the provincial capital. ?Of course, the JJ-9 is one thing for the entire aviation industry system, but it is another thing for your aviation industry. ?This can be said to be the most critical step for Guihang to save themselves and survive. If Shuo Wei didn''t understand it, then maybe even Chang Haonan wouldn''t be able to save them. Therefore, Chief Engineer Sun Huizhong and Guihang General Manager Lin Haijun seized almost every possible opportunity to demonstrate the aircraft to potential users. ??The reason why this aircraft is painted to look as gaudy as it is, is because today, Wu Guohui, the captain of the Bayi Aerobatic Team, will come in person to experience the flight performance of this prototype aircraft. ??The model currently equipped by the Bayi Performance Team is the J-7EB, which is the performance model of the J-7E and one of the main models of the Chinese Air Force. To be fair, the performance aircraft derived from the J-7E can basically meet the needs in terms of low-altitude and low-speed performance. But the purpose of air shows is not just to show off wonderful stunts and the superb flying skills of pilots - from the perspective of flying stunts, then any jet aircraft is inferior to those propeller-powered special aerobatic aircraft. The more important point is to show the style and strength of the People''s Air Force, including the Chinese Aviation Industry, through flight performances. From this perspective, the J-7EB is a bit unsatisfactory. Even for viewers who dont know much about air force equipment, its not difficult to see that this is not a very advanced fighter aircraft. So, the Bayi Performance Team has been looking to replace itself with a model that at least looks more advanced. At present, the most advanced main battle model in the hands of the Air Force is the J-8C, which was finalized last year. ??But even after Chang Haonan''s extensive modifications, the J-8C, which is an interceptor aircraft, is really not suitable as a performance aircraft. The mobility is strong enough, but the agility and reaction accuracy are still a bit lacking. Besides, its a bit too expensive At this time, the JJ-9 was approved as the inlet verification model of Project 10. ?Lin Haijun keenly discovered this opportunity and put the draft design of the aircraft on the desk of the Air Force leaders. Generally speaking, the maneuverability of the J-9 is far superior to that of the original J-7EB, and the two-person cockpit also allows a flight photographer to accompany the aircraft for photography. The more important point is that it is at least a "pointed aircraft". For the less knowledgeable audience, it even looks similar to the F16 used by the American Thunderbirds performance team. After all, when an airplane makes movements in the sky, in most cases, only its outline can be seen. ?Hence this experience flight. ?Furthermore, Lin Haijun understands the essence of eating two things with one fish. At this moment, on the management platform in the distance, there were several people with obviously foreign faces standing next to him, all holding a telescope in their hands. Obviously, I also came here to watch this flight. ?Not long after, Wu Guohui, who had already changed into flying gear, and another test pilot boarded the plane one after another. With this J-9, there was another J-7 that took off. ??The latter will assist the No. 01 prototype and show Wu Guohui a "unique skill" of the JJ-9. ??Wu Guohui is not a full-time test pilot, but as the leader of the demonstration team, he has an astonishing flight time of more than 5,000 hours, so he adapted to the new aircraft quickly. ?Ten minutes later, two planes took off into the sky at the end of the runway, one after the other. ? Just this simple action, pulling up the nose of the plane to climb, allowed Wu Guohui in the front seat to experience the extraordinary power of this aircraft. ? Not only the take-off distance is shorter, the throttle and pole position responses are also much more sensitive than the J-7EB he is used to driving. The turbojet 14B does not have a full-authority digital electronic control function. This improvement is entirely due to Chang Haonan''s redesigned compressor and the more efficient DSI air intake on the JJ-9, which allows the engine to adjust its working status at a faster speed. Won''t get caught in a surge. It is somewhat similar to a person''s lung capacity becoming larger and lung function becoming healthier. Although the muscle mass does not change, the level of exercise will still be improved. ?After experiencing the increase and decrease of the throttle several times in a row, Wu Guohui roughly mastered the operating rules of this aircraft. ?His own rich experience is of course one aspect, but more importantly, JJ9 is really easy to open. ??Due to the existence of fly-by-wire flight control, the overall control of this aircraft tends to be linear, which is very intuitive. Even a novice can master it quickly. It is indeed a good foundation as a trainer aircraft. ?Wu Guohui, who had itchy hands, climbed the plane to a safe height and prepared to try a few aerobatics. ?Before taking off, he already knew that there would be potential foreign customers watching today''s flight. Hence, before making the move, Wu Guohui specifically adjusted the direction to allow the plane to pass sideways above and in front of the management platform. ??At the moment the J-9 flew across the airport runway, he quickly pulled the stick back with his right hand and controlled the throttle with his left hand to prevent the aircraft from entering a rapid climb attitude. After the brief feeling of overweight, the two pilots'' eyes crossed the midday sun and landed on the horizon behind them. They were almost "lying" on the back of the seat in a slightly head-down position. From the outside, especially from the viewing platform on the side, the nose of the aircraft tilts up to about 100-110 almost in an instant, forming a situation where the tail is in front, the nose is behind, and the fuselage of the aircraft is almost erect. But it is still flying forward. Even though he was shocked, Lin Haijun also did not forget to pay attention to the reactions of the wealthy investors next to him. As expected, several people opened their mouths in unison, holding telescopes, and almost stood still. Cobra maneuver! (End of this chapter) Chapter 500 "Mountain Eagle" flying to the world Chapter 500 The Mountain Eagle flying to the world Compared to the laymen who were just watching the excitement on the ground, Wu Guohui in the cabin was even more overjoyed at this moment. Because he can even feel his hand gripping the control stick, and the aircraft can still adjust its flight attitude according to the subtle movements of his hand. In other words, at this large elevation angle of about 110, the JJ-9 is still controllable! This is much more meaningful than simply flying a Cobra maneuver. ?Whether it is Su-27 or F18, although many types of aircraft have made the same action in the past, most of them were essentially in a semi-out of control state during the process of raising their heads and finally returning to level flight. That is to say, although the aircraft can remain stable and avoid flying randomly due to its aerodynamic design, it cannot be controlled within a specific angle of attack range. It''s just that different models have different stages of losing control. If you want to restore complete control, you can only wait until level flight is restored. ?Of course, there are also high-ranking players such as No. 711 Verifier or HARV Verifier, but they all use vector propulsion technology to cheat. JJ-9 does not have these tricks and tricks. It relies entirely on aerodynamic design to maintain maneuverability at large angles of attack. Although our aircraft is a training aircraft, its maneuverability has definitely reached the level of a fighter jet, as some of you must have seen just now. ??Taking advantage of this gap, Lin Haijun started to improve his own products. Furthermore, the JJ-9 itself also has the ability to use weapons. The combat training type will even be equipped with a fire control radar, which can launch medium-range projectiles for beyond-visual-range combat. Although there are territorial disputes between the two countries, the reason for the dispute is that they both believe that the two territories should belong to each other, so they are in peace with each other. ?The automatic leveling function was actually not that rare in the late 1990s, but for some potential customers who had never used high-end products, it was still something worthy of special mention. After a little experience, he quickly leveled the plane. Even after some improvements, the JJ-9 is not an aircraft good at energy. It needs a period of acceleration in level flight to prepare for the next action. ?As he spoke, he held up a wooden airplane model to demonstrate to several customers. Considering that the Sudanese Air Force has almost no air combat needs, he quickly turned the topic to the multi-purpose capabilities of the aircraft. Very maneuverable. The Sudanese Air Force is equipped with about 20 Qiang 5IIA, 15 Su-25 and 4 Su-24M, and is purchasing a batch of upgraded MiG-29S that can launch R77 active bombs. It is considered a barely capable air force in the African region. strength. In short, the Sudanese Air Force feels that it must establish an independent flight school. ?The other party is actually from Sudan, and their original intention is to purchase a few advanced training aircraft that can train pilot students. Having said that, they were clearly shocked by the performance of the JJ-9 just now. "For student pilots, trainer aircraft with stronger controllability and maneuverability will also help them adapt to real combat aircraft faster and reduce the possibility of accidents during flight training. Even if a stall or spin occurs, as long as When the pilot releases the control stick and pedals, the flight control system will automatically recover and resume level flight..." ?The reason why over-stall maneuvers have little practical significance is that on the one hand it is difficult to control during the maneuver, and on the other hand it will cause the aircraft to lose a lot of speed. Until oil was discovered beneath one of the fields ??Wu Guohui has already given this aircraft a high basic score in his mind. Marat, the chief of staff of the Sudanese Air Force who led the team, put down his binoculars and suddenly felt that for such a limited air force under his command, there would be nothing wrong with having more aircraft that could be used for combat. ?Lin Haijun quickly saw the interest in this model from the other party''s eyes. In the past, their air force pilots were mainly trained by the Egyptian Air Force. "Our JJ-9 can maintain a minimum level flight speed of 195km/h. Compared with the Qiang-5IIA used by your country''s air force in the past, it is more suitable for ground attack, and its maximum speed can reach 1.2 times the speed of sound. Compared with the Su-25, it can Reach the battlefield faster..." The advanced training type has a total of 7 weapon hardpoints, while the combat training type has 9, and can mount up to a total of 3 tons of weapons and equipment. "We have reserved a light hanging point with a data interface on the left front of the belly of the aircraft, which can be used to mount a data transmission pod or a laser targeting pod to use TV-guided or laser-guided precision-guided weapons. This is also an old model. What attack aircraft dont have The best way to bring goods is actually to push them. Therefore, Lin Haijun was very eloquent and easily described his own products as the most suitable equipment for the air forces of third world countries. ??Actually, he didn''t lie. It''s just that at the moment, China''s aviation industry is not able to provide supporting related equipment. But it doesnt matter, the hardware interface has been reserved, and the rest can wait for OTA. ?Sure enough, Chief of Staff Marat didn''t care much about precision-guided weapons. ?Sudans first large-scale oil field was built by China Petroleum and Natural Gas Company. It has not yet been put into production, and it is not yet wealthy enough to use precision-guided weapons on a large scale. Besides, the main opponents they face are some separatist armed forces and terrorists in the Sahel region. It is enough to be able to fire a rocket. Whats the range of this plane? What Marat is concerned about is that the battery life must be long enough. Otherwise, others will hide for a while when they see the plane coming, and you will have to return quickly if you can''t find the target, which would be boring. General training aircraft generally do not set too long a blank time because they do not have this requirement. Fortunately, the JJ-9 was born out of a serious fighter jet and replaced with an engine with lower fuel consumption. With three auxiliary fuel tanks, the maximum range is 2,600km, far exceeding most similar models. ?Lin Haijun continued to diss his business partners mercilessly. At this point, he suddenly had a flash of inspiration and added: If your country particularly needs to carry out some long-term air patrol missions, then... our company is actually developing a drone, similar to that used by the US military. Mr. Marat can wait until next year to take a look..." While the two were talking, Prototype 01, which had circled in a circle, flew back again. Only this time, we were flying in formation with the accompanying J-7. ?Marat raised the telescope in his hand again. ?But this time, from a visual perspective, there doesnt seem to be anything special. Just when he was confused, a conversation between the tower and the aircraft came from the radio next to him. ?Lin Haijun directly took on the role of translator: This is to test the control accuracy of our aircraft. The tower requires that the relative position of the J-9 behind us be 5 centimeters forward. Take less? ??If the telescope hadn''t been hanging around his neck, Marat might have dropped it with a shake of his hand. 5 centimeters. ?Lin Haijun repeated it in English, and then admired the dumbfounded expression of the Arab man in front of him For the JJ-9Y dedicated to the performance team, Sun Huizhong creatively installed a radio rangefinder customized from Electronic 14 on the nose of the aircraft at the position originally reserved for the radar, which can directly display the 120 range of the front hemisphere on the aircraft''s HUD. The relative direction and distance of the inner target. Compared with radar, this gadget has a range of no more than 100 meters, but it is better at tracking up to five targets at the same time with higher accuracy. It is completely customized for formation flying performances. ?Combined with the turbojet 14B engine with fast and accurate throttle response, the aircraft can completely fly in formation with centimeter-level accuracy. ?Of course, since there is no FADEC, the engine is still controlled independently by the throttle stick, so this gameplay requires very high manual skills from the pilot. ?Given the training level of the Sudanese Air Force, it is probably difficult for any pilot to be able to achieve this level. and. The device itself is not small, so it cannot be installed on the combat trainer type. In fact, even the advanced coaching type is not really needed. After all, except for the performance team, there are no scenes that require pilots to make such outrageous actions as "nearly 5 centimeters". Even mid-air refueling does not need to be so precise. ??But the psychological impact this conversation had on Marat was real. ? He ??was hesitant just now and blurted out almost without thinking: So, what about the price? How much do you want to sell this aircraft for? ?Marat calculated the budget that the president had approved for him before leaving, and asked a little uncertainly. ?According to his experience, if something looks good everywhere, its only drawback may be that it is expensive. Fortunately, China accepts various flexible transaction methods. Also, this is just the first prototype after all. When can the mass production model be officially delivered? ?When he heard these two questions, Lin Haijun knew that his aviation industry could be saved. Even if they do not receive cash in foreign exchange, in the barter transaction model, other domestic units will give them money in the form of fund transfers. For Guihang who is struggling to survive, as long as it is money, it is good. Including necessary spare parts and training, the unit price is US$8.5 million for the advanced trainer model and US$10 million for the combat trainer model. As for delivery, almost all subsystems on this aircraft are relatively mature models, and there are relatively few test flight subjects required before mass production. According to conservative estimates... delivery can begin within two years. In fact, based on the current timetable, the finalization cycle of JJ9 is even shorter. Its just that you have to leave some room when speaking. Guizhou Airlines really cannot afford the liquidated damages for delayed delivery... "if it is like this" ?The price Lin Haijun said made Marat''s eyes light up: I think we can discuss more specific details of the transaction. (End of this chapter) Chapter 501 If China can do it, so can I? Chapter 501: Going to China, can I do it too? In the context that the country has regarded the aviation industry as a key development area, aircraft export is naturally a big event. ?Especially the 12 aircraft purchased at one time by the Sudanese Air Force, as well as the corresponding various types of ammunition and other consumables, with a total value of more than 150 million US dollars. ??Although the transaction is conducted in the form of a deduction for the payment of the oil exploration rights contract, in any case, spending less means making more. Putting it in the context of the late 1990s, it was a lot of money. ?Hence, this aircraft, which caused little stir during its first flight, received some decent media publicity midway through its test flight. ?Of course, the focus of publicity is not only the JJ-9 model itself, but also Guihang Industry, which is actively carrying out self-rescue and solving operating difficulties. Originally, after the automobile industry went into decline, it was difficult for them to continue to maintain normal production and operations. Just a few JJ-7 orders every year are simply not enough to support such a huge enterprise. At the same time, for the Aviation Industry Corporation of China, which is about to face restructuring, it is also completely uneconomical to retain a secondary enterprise for a model that is highly similar to the J-7. Hence, the fate of Guizhou Aviation Industry was already somewhat precarious. ? Jiang Shengzhen, who was born in the United States, played a very important role in it relying on his extensive personal connections. In fact, as early as the early 1980s, South Korea had signed a contract with Northrop to establish a domestic production line for F5 fighter jets. ?But even at that time, this type of aircraft was already outdated. However, General Dynamics and Lockheed Martin are still quite concerned about the production line for the F16. After entering the 1990s, with the development of the economy and industrial level, the aviation manufacturing industry naturally entered the field of vision of Koreans. It can be regarded as giving some hope to some old state-owned enterprises that are also in difficulties. It is always better to delay and wait for changes than to close down the company directly. As for the success of the JJ-9 model, even if it cannot achieve a rejuvenation, it can at least extend its life. But the situation in Jiang Shengzhen is rather special. Under his mediation, Samsung Airlines completed the introduction of the final assembly line in 1994 and began producing KF16 fighter jets. ?Some people who are more proactive are already contacting Guizhou Airlines to see if they can send someone to get some advice. ?Chung Woo-seok, head of Samsung''s aviation industry department, is accompanying Industry Minister Kang Seung-jin to inspect the KF16 fighter final assembly line. At last, there is some hope. The Koreans were not reconciled and quickly focused on the more advanced F16 fighter jets. For todays Samsung, a mere minister is certainly not an important figure. ??Moreover, it is not just domestic companies that are encouraged by this report... After all, its not difficult to think of it as long as you use your brain a little more. South Korea, Sacheon City, Gyeongsangnam-do. ?? Guihang has made little progress in self-rescue in the past decade or so. Now that it is suddenly turning around, there must be some unique way. Although many of them are indeed lagging behind the times and will inevitably end up going bankrupt, there are also many companies that simply cannot adapt to the market environment or simply suffered a run. Even earlier than China produced the J-11. Such a number one figure can be said to indirectly control the lifeblood of the entire Korean aviation industry, so Samsung naturally has to respect it. At present, a total of 42 KF16 fighter jets have been rolled off the production line. It is expected that a total of 120 fighter jets can be produced before the end of 2000. By the last batch, 78% of the parts will be produced by South Korea. ?Zheng Yuxi introduced, while leading Jiang Shengzhen through the work station where the final assembly steps of the aircraft were being carried out. So, after entering the 21st century, what are your follow-up plans for this production line? After all, the scale of the South Korean Air Force is limited and it is impossible to equip too many aircraft, and it is obviously impossible for the Americans to allow them to export F16 alone. Therefore, after producing the quantity stipulated in the contract at the time, the factory will face the risk of losing business. This is something Jiang Shengzhen doesnt want to see. After the production of the KF16 ends, we plan to transfer the production here to the new training aircraft developed in cooperation with Lockheed Martin. That Golden Eagle project? ?Although Jiang Shengzhen has a wide network of contacts, he doesnt actually understand aviation, and he only has a general understanding of these projects: I remember it has been going on for 5 years, how is the progress? ? ? "This..." ? ? ? Talking about this topic, Zheng Yuxi''s face became a little stiff: We found that the previous plan was too conservative, so we are re-evaluating the plan. Obviously, the progress is not very optimistic. ?At this time, his painting skills need to be tested. As expected, Jiang Shengzhen frowned: "Reassess?" In other words, all previous design plans will be invalidated? ?Zheng Yuxi nodded: The original design plan was based on the British Eagle 100 trainer aircraft, but the performance could not meet the requirements of the originally planned combat training aircraft. So we simply plan to overthrow the entire plan and start over, learn from F16 technology, and develop an advanced trainer aircraft with a performance level close to that of the third-generation fighter jet for the international market in the 21st century. Of course, this requires more in-depth cooperation between Lockheed Martin and General Dynamics... ?This is why Samsung Airlines specially invited Jiang Shengzhen to visit. He needs to lobby further to gain support from the United States. Learning from F16s technology Although Jiang Shengzhen doesnt quite understand the specific differences between the two solutions, he can tell that Samsung Airlines hopes to develop a more advanced model, and plans to not only equip the South Korean Air Force, but also export it To other countries: In this case, will there be any conflict with F16 in terms of positioning? Exporting is exporting, but competing with American companies for the market is a matter of course, and Jiang Shengzhen would definitely not dare to do it. The reason why the model was originally determined as a subsonic intermediate trainer model was to avoid this. "Won''t." ?Zheng Yuxi is certainly not stupid and understands what the other party is worried about: The new aircraft will be smaller and cheaper than the F16. It is mainly aimed at third-world countries that cannot afford standard third-generation fighter jets. It can serve as a trainer aircraft and also undertake certain combat missions. ?Having said that, Jiang Shengzhen still hesitated. For him, the point is that those working in the aviation industry can provide a lot of votes. ?As long as the production line can be maintained, it can maintain a sufficient position in the power hierarchy. As for what to build specifically, it is not very important. More advanced models do bring higher potential benefits, but they also bring corresponding risks. ?In the event that R&D is blocked and KF16 cannot be converted to production for a long time after it is discontinued, the scale of the entire industry may shrink, and its status will be difficult to guarantee. ?Seeing that Jiang Shengzhen did not reply, Zheng Wooxi continued to throw out heavy chips: This route has actually been verified by China. Recently, their aviation industry promotional newspapers and periodicals have focused on a similar model. The latter said taking out a newspaper from his pocket. Older Koreans can understand more or less Chinese. So it is much more convenient for them to collect information on China. ?? Jiang Shengzhen grew up in the United States and did not have this condition, but he could always see the plane printed on it. At first glance, it looks a bit like a combination of F16 and F18. According to the report here, an African customer has purchased 12 aircraft, and the Chinese Air Force plans to purchase more. Zheng Yuxi knew that the other party did not understand Chinese, so he briefly translated the core content above, and then continued: "The aircraft that China was able to produce before were the improved MiG-21 and the enlarged version of the MiG-21 they called the J-8. But we have been able to produce the third-generation KF16 fighter jet by ourselves three years ago. The manufacturing level is much better. Now, since they can build such a multi-purpose supersonic advanced trainer aircraft, and we also have the design assistance from General Dynamics and Lockheed Martin, there is absolutely no reason why they cant build it! It should be said that Zheng Yuxi knows how to stimulate generals. Since the 1980s, South Korea has generally entered an era of extremely high self-confidence. ?Of course, no matter how popular it is, it will definitely not have the courage to compete with the United States. So their key comparison objects are Japan and China. Specifically speaking about the aviation manufacturing industry, considering that the former was authorized to assemble heavy-duty F15J fighter jets more than ten years ago, so in general... Nor have the courage. But facing the latter, Koreans are still relatively confident. I cant compare to Japan, so why cant I compare to you, the Five Permanent Peoples Political Consultative Conference? (End of this chapter) Chapter 502 Hug Comrade Chang Haonan’s thighs! Chapter 502: Hug Comrade Chang Haonans thigh! Chang Haonan, of course, had no idea that his original intention was just to give Guizhou Aviation Industry a hand and bring full confidence to some unplanned countries. Even regarded China Aviation Industry as a rival. ?However, even if I knew it, I wouldnt take it too seriously ??The final product of South Korea''s advanced trainer aircraft is the T50/FA50 "Golden Eagle" combat/trainer aircraft. Technically speaking, this model is somewhat similar to the Xiaolong, a mediocre and even somewhat lackluster light third-generation aircraft. They are considered equally matched opponents. However, for South Korea, FA50 is a big project that requires the full strength of the whole country, and whether it is Coach 9, or Xiaolong, which is not yet clear how to develop on this timeline, for China, or for Chang Haonan Words are all small and casual tasks. There is no comparison. As for the export of arms, in many cases it has little to do with the equipment itself, but is affected by many external factors. Since the JJ9 report was released, one of the most fortunate things about Chang Haonan is that he took charge of the Torch Group earlier than the previously set timetable. But this time, it was Zhang Yong himself who specifically requested that the meeting venue be set here. Sun Huizhong sent him a letter of thanks in the name of Guizhou Aviation Industry about half a month ago, but at that time the latter was in Shengjing to deal with the turbofan 10 project. After returning, the letter of thanks had been buried under many documents. . ? And the person sitting at the top of the list is not the leader of the Ordnance Industry Corporation, but Zhang Yong, the director of the System Engineering Department II of the Commission of Science, Technology and Industry for National Defense. Comrades, you must have read the press release and the good news issued by the aviation industry two days ago, right? In short, this incident can only be regarded as a small episode in his daily busy work. If not, just because Guihang came back from the dead and learned about TORCH Multiphysics, and through TORCH Multiphysics to find out about Torch Group, and even found out that Jinling Motors, which has been in the limelight recently, has a close relationship with Torch Group, they would have used it long ago. Chang Haonan himself was annoyed to death by countless phone calls. In fact, it was only in the past two days that Chang Haonan learned that the JJ-9 had made its first flight and had even been successfully exported. As for now... Lets give Teacher Yang Huimei more salary when the time comes... ??Although this young company still looks a bit like a grass-roots team at first glance, although the sparrow is small, it has all the internal organs. In terms of rank, Zhang Yonghe is the same as the person in charge of the second-level enterprise under the Ordnance Industry Corporation, but after all, he has business jurisdiction, so he is naturally in a leadership position. Logically speaking, this kind of large-scale meeting within the entire system should be held at the Ordnance Industry Corporation, or simply the Commission of Science, Technology and Industry for National Defense. Except for the core business and decision-making, other matters can be left to the corresponding department leaders (although many of them are just commanders). From this perspective, Chinas main opponent has always been the United States. The reason why it is special is that in addition to the internal leaders of the Northern Vehicle Research Institute and some business backbones, the participants also have many colleagues from brothers (competing) and brothers (competing) for single (opposite) positions (hands). A somewhat special symposium within the weapons industry system is being held here. It wasnt until he saw a newspaper published by the aviation industry and called the other party to congratulate that he learned about the thank you letter. Finally, he dug it out from under a pile of documents on the table... There is no need to devote too much energy to dealing with some miscellaneous fish. Northern Vehicle Research Institute, Huaishuling, southwest of Beijing. After looking at each other in confusion, everyone nodded. ?Among the export orders signed by the aviation industry system in the past year, 12 JJ-9s are not that amazing. But compared with the Chengjing Aircraft Industry Group, which has sold hundreds of J-7Fs, and the Shengjing Aircraft Industry Group, which has improved hundreds of F4 and F14 fighter jets for the Persians, Guizhou Aviation Industry is really an inconspicuous little player. . Many comrades outside the aviation industry system have even heard of this unit for the first time. Therefore, within the Science and Technology Commission system, the focus of publicity on this matter is actually "the third-tier old military industry enterprises seek to develop and survive." It has directly shaped Guihang Industrial Group into a state-owned enterprise, especially a model of successful reform of military industry enterprises. ? ? Along with the entire aviation industry system, and even the three systems engineering departments in charge of the aviation industry have all benefited from it. The business volume of Torch Group has soared, and it is precisely for this reason.?????But when there is comparison, it is harmful. System Engineering Division III is in charge of two businesses, aviation and shipbuilding. Needless to say, the former has almost completely changed over the past year or so, which even makes people wonder if there is any supernatural power to help. Although the shipbuilding industry system is not so exaggerated, it has quietly exported several improved frigates and missile boats, and has also developed a plan for a new generation of main battleships that the navy urgently needs. It is said that the navy leaders are very satisfied. ?System Engineering Department I is another brand of the National Space Administration. It has an aloof status and hardly participates in the competition of these human affairs. Not to mention the Department of International Cooperation, the recent foreign cooperation has simply written the word "making huge profits" on its face. ?As a result, the second system engineering department headed by Zhang Yong is the most popular among the business departments of the Science and Technology Commission. Comrades, know your shame, know your shame! ?Zhang Yong stretched out **** and knocked on the table in front of him sadly: In the past year, the entire military industry has almost completely taken on a new look. Although our weapons industry system has made some achievements, compared with comrades in several other systems, it still lags behind..." Director, a few days ago, some comrades from Hunan Province went to Guihang to learn from their experience. ??A project leader from the Northern Vehicle Research Institute said: I heard from General Manager Lin over there that they received a lot of technical assistance from a company called Torch Group for the JJ-9 project. I checked this Torch Group specifically and found out that it is a new state-owned enterprise that was established only three months ago. It is also very small in scale. Logically speaking, it should not have such strong technical strength. Another engineer from Inner Mongolia next to him also nodded: Before coming to Beijing this time, I also specifically contacted the Torch Group to ask if they could cooperate in the structural design of heavy vehicles, but... I did not receive any response. ?Everyone said something to me, but the meaning was always the same. ? Its just that the Torch Groups dragon has never been seen, and there is really no way to contact it, let alone seek technical assistance. This is the purpose of calling everyone here for this meeting today. Zhang Yongs words suddenly silenced the conference room. "The situation of Torch Group is quite special. I can''t disclose too much detailed information, but their general manager, Comrade Chang Haonan, recently happened to be in charge of the development of a large-scale die forging manufacturing process. In fact, it is a project to develop a heavy-duty die forging press. Through a lot of hard work, I won this project and it landed here, the Northern Vehicle Research Institute. In fact, the die forging press project was handed over to the Ordnance Industry Corporation and was finalized by Chang Haonan and Ding Gaoheng. Zhang Yong was a complete outsider in the decision-making process. ?However, he must still show his value as a leader in front of his subordinates. You cant say that I was hit by a pie falling from the sky for no reason. There is no difference in the result anyway. Comrades, this is a once-in-a-lifetime opportunity. ?Zhang Yong glanced at the conference room in front of him, paused for a moment and then continued: Comrade Chang Haonan is an expert in computational fluid dynamics and computational structural mechanics. Of course, his main focus must be on the development of die forging presses. He cannot spend his time directly helping us with projects. But this project falls within our weapons industry system after all. You can select some key members, preferably those with certain skills in structural calculation, to participate in the heavy-duty die forging press research and development project! ?Some people soon understood what Zhang Yong meant: Director, what you mean isto steal the teacher How can I be called stealing from my master? The latter immediately said in a trembling voice: This is called uniting around Comrade Chang Haonan, keeping up with the advanced, learning from the advanced, integrating the advanced experience of comrades in the aviation industry system into our own production and research and development work, improving the core competitiveness of the enterprise, and enhancing the core functions of the enterprise..." In short, its just one sentence. Hold Comrade Chang Haonans thigh tightly! (End of this chapter) Chapter 503 Comrade Chang Haonan became a favorite Chapter 503 Comrade Chang Haonan has become a hot potato After all, it is an internal meeting of the weapons industry system, so Zhang Yong can say some things more straightforwardly: Here, I can give you an explanation. Comrade Chang Haonan is not only the general manager of Torch Group, but he also personally participated in the research and development of some important projects at the Aviation Industry Corporation of China before this! It can be said that the improvement of the domestic aviation industry and machinery manufacturing industry in the past year has a very direct relationship with him! ?Zhang Yong was mainly worried that the people in front of him still didn''t realize the seriousness of the matter. In these days, the efficiency of information transmission is not very developed. Each military industrial corporation itself has administrative functions, and each one is a small independent society. ??For those who live in it, in theory, they can stay away from the outside world for the rest of their lives and only interact with colleagues and military representatives within the system... So Chang Haonans reputation, although already well-known at the top levels of the aviation industry and the Science and Technology Commission, is not inevitable for several other systems. ?Of course I dont mean to say that I havent heard of it at all, but the content I know is probably what is publicly publicized outside... ??Although at the age of 23, it sounds like an exaggeration to be able to lead the research and development of projects such as MA-60, and even seize the opportunity to bring China''s civil aviation industry into a new era. But compared with the other party''s actual performance, these things are really not worth mentioning... Then, Zhang Yong suddenly discovered... But if there is a contribution, there is a contribution. You have to be reasonable, right? ??These projects just mentioned, plus the JJ-9 mentioned at the beginning, the responsible units alone cover the whole country. It is a second injury. "The projects you just mentioned, as far as I know, seem..." Isnt thisimpossible? Someone thought for a while and then took stock and said: I heard all the news from Director Ding. For Zhang Yong, this inventory almost reminded him of the great achievements made by the System Engineering Division 3 next door over the past year. ?He hesitated for a moment, but then continued: Comrade Chang Haonan seems to be involved in all of them, and...the extent of his participation is very deep..." Obviously, although some people appear to be calm and calm on the surface, they still take note of the performance of their brother units and keep it in mind. Projects in the aviation industry...They have quite a few projects in the past two years... Zhang Yong half lowered his head as he recalled: And...I remember that the Committee of Science and Technology and Industry held an enlarged meeting of party members some time ago, and only Comrade Chang Haonan was enlarged..." Are you bringing a clone with you? We are all military workers. After Chang Haonan received the first May Fourth Youth Medal in the first half of the year, many people secretly speculated that he must have made other contributions, but it was difficult to write them down clearly, so he was awarded a grand prize. To show compensation. ?However, this also happened to help him summarize his competitors. Just those that have been commended by our Science and Technology Commissions internal notification include J-8C, Turbojet 14, J-10, J-11, MA-60, J-H-7..." Many people stopped smoking in mid-air. Just like now. ?However, when the fake academic master meets the true academic god, it will be another story. ?Looks very much like some top academics who pretend not to study but are involved in life and death in private. After saying this, the entire smoky conference room was pressed to pause almost instantly. When it comes to this, it is basically solid. The person who just said it was impossible looked embarrassed at first, but it only lasted for a moment, then turned into horror, and then turned into solemnity. The symposium was relatively informal in format, so everyones posture was relatively casual just now.?????But by this time, they had already sat upright. ??If just now everyone had just an ordinary response to Zhang Yong''s proposal, now, everyone is already eager to try it. Such a number one person, even if you can learn 1% of his skills from him, it will definitely help your own project research and development. From hesitation and hesitation to scrambling. Transformation only happens in an instant! In the delicate atmosphere, a representative from the Second Machinery Manufacturing Co., Ltd. spoke first: "Director, our group is currently developing a heavy-duty mining vehicle to solve the long-term dependence on imports of domestic mining vehicles. However, China has not developed a vehicle of more than 100 tons before. We really need to learn some advanced experience in structural design. Our No. 2 Machinery Factory made a statement first and sent 10 technical research and development backbones to participate in this large-scale die forging manufacturing process development project free of charge! As soon as these words came out, the colleagues around him were immediately shocked. How can people be so shameless? What Zhang Yong just said is very clear. Although they are sending people this time to help others with projects, the core is to learn from experience. How can you say that you support leadership work selflessly? Still free? ??Moreover, this kind of project is only in the name of the weapons industry. People often have to bring their own team, and the number of places left for outsiders to participate must be limited. You want 10 with just one mouth? Be a human being! ?However, at this time, we can see the importance of taking a positive stance - Someone responded to his proposal first, so Zhang Yong naturally found it difficult to refuse the other party''s request. "good!" The comrades from the Second Machinery Factory took the lead, ten of them! ?At this time, the heroes from all walks of life who were still a little reserved could no longer sit still. ??Move slowly here, I''m afraid you won''t even be able to drink the soup... Director, after all, mining vehicles are not the main business of our ordnance industry group. Our new third-generation main battle tank has just reached the critical stage of research and development, and it is also a key project of the 9910 project. The time is tight and the task is heavy..." "Director, after the introduction of the Doyle M1 in the past two years, the army immediately took a fancy to that chassis. Based on that, we are developing a new generation of army crawler support equipment universal chassis, which is planned to cover all equipment in the range of 30-50 tons. Equipment, the amount of equipment is larger than that of tanks..." ??These are two project teams under the Northern Vehicle Research Institute, and now they can no longer care about the friendship between colleagues. Other units are naturally not far behind. "Leader, according to the advanced experience in the aviation industry, equipment research and development still needs power first. If the high-power diesel engine of our Power Research Institute cannot keep up with the progress, it will affect the overall situation. In addition, we will select the power of the new frigate. We are already lagging behind, but the generator set cannot continue to lag behind us. Our requirements are not high, just five people will be enough..." Soon someone came up with a new trick: "I don''t think we can give someone a free quota for the project. We, Bingcheng First Machinery Group, are willing to contribute a sum of money to support this die forging technology research and development project. After all, the project results will ultimately be of great significance to our heavy equipment manufacturing industry. Obviously this is preparing to bring capital into the group. "If that''s the case, our Iron Horse Group will have something to say. We are not short of money. In terms of equipment, what can compare to a truck?" Looking at the lively crowd in front of him, Zhang Yong, who was sitting at the top, was a little confused for a moment. ?He felt that if the quota allocation was not good this time, then he, the director, might be eaten alive... Shaking.jpg (End of this chapter) Chapter 504 4.2 billion in funding, I have never been so rich Chapter 504: 420 million in funding. I have never fought such a wealthy battle! ??A few days later, when Chang Haonan walked into the Northern Vehicle Research Institute, he was half pulled and half dragged into a small auditorium almost immediately. ?At this moment he wanted to shout: Im here to hold a project seminar, what do you want to do? But he still didnt shout out after all. Because the auditorium has been arranged like an oversized conference room. Yan Yongnian and several other comrades he was familiar with were also sitting inside. Its just This scene seems a bit too big. At a rough count, there must be about a hundred people. Although this large-scale die forging manufacturing process development project is a false plan to defeat Guo, and even has preparations to revive the soon-to-be-disbanded Ministry of Machinery Industry, it is only a pre-research project after all, and it cannot be such a Lots of staff. Whats more, quite a few of them are unfamiliar faces. ?Zhang Yong, who emerged from nowhere, came to Chang Haonan, who had not yet recovered from his daze, and spoke first: In his original plan, today was supposed to be just a core member meeting involving less than ten people. But Im also preparing other things... Of course I dont have stage fright. After all, I have been through hundreds of battles and have seen a lot. ?The reason why Zhang Yong was so anxious to come over and explain to Chang Haonan was mainly because he was worried that he had boasted too much in front of his subordinates before. Although the die forging press project only temporarily borrows the name of the Ordnance Industry Corporation, hot forging technology is of great help to many projects in the ordnance industry system. The general meaning is that no matter what happens in the future, our Science and Technology Committee will definitely protect you. If that doesn''t work out, you can still find a position in our Torch Group, and the salary won''t be that bad. Every social worker will know that when faced with being laid off, the work efficiency of people who are in constant panic will definitely be affected. So Chang Haonan came over and prepared to give them a reassurance The main thing is to let the heads of several business areas in the project get familiar with each other''s work, and then unify their ideas. ?If this were known, the glorious and majestic image he had created in the past two days would completely collapse. "Well" I just dont know what to say. As a result, the number of people present is now more than ten times greater. The Ministry of Machinery Industry is part of the institutional reform of the State Council, and it must not be talked about in such a big occasion until the dust has settled. Chang Haonan was dragged to the main seat in the room by Zhang Yong and sat down, but he still had not recovered from the shock just now. So after the comrades from various research institutes learned about it, they all expressed their opinions enthusiastically, hoping to contribute to this project..." "Mr. Chang, let me introduce the situation to you..." ?Especially now that the fate of the Ministry of Machinery Industry has basically been determined, some people involved in the research and development of die forging presses are in an uncertain future. After all, this project was not something he fighted for, but it fell on him almost inexplicably. Zhang Yong next to him knew that there must be no silence at this time. Otherwise, Mr. Chang will feel embarrassed or unable to step down. So he poured the tea for Chang Haonan himself, sat back down in his seat, and then continued to speak: Although Director Ding said before, the funds and staffing for this project are all raised separately and do not need to be funded by the weapons industry. But to put it this way, Mr. Chang, you can come here to do projects, and comrades cant really get nothing. So in order to show support, a total of 110 people have been hired from institutions under the weapons industry system, all of whom are researchers in mechanical design and structural mechanics. They will directly join Mr. Changs project as non-staff personnel and will all be under your command! ?This statement highlights a high emotional intelligence. Combining the previous conversations in Ding Gaohengs office, it was not difficult for Chang Haonan to guess that the other party wanted these people to learn something by participating in this project. This can be seen from the fact that most of the faces in the conference room are young and middle-aged. The situation is similar to the situation at Turbofan 10, except this time people came over on their own initiative. ?But having said that, these people did solve his urgent need. Originally, due to manpower constraints, many R&D links that needed to be implemented into trial production could only be carried out after the new year and the Equipment Industry Department was formally established. Chang Haonan worried about this for a while, and finally adjusted the research and development process. But now no need! ?However, the surprise is not over yet. Zhang Yong added: In addition, various units under the ordnance industry system have also raised a total of 420 million yuan in funds as project funds to support the die forging press project! As soon as he finished speaking, the entire small auditorium burst into warm applause. ?At this time, Chang Haonan has completely recovered his thinking ability More than 400 million yuan in funding! From a purely quantitative perspective, its not bad. ??For the Taihang project in Shengjing, the amount of funds approved at this stage is more than an order of magnitude more. But more than 400 million was a concentrated injection of funds at the very beginning of the project. And it must be counted as horizontal funds provided by enterprises. These days, as long as you complete the project, almost no one cares about the specific use of horizontal funds. ? Among other things, the "project team commission" that is compliant and legal can even be raised to one-third or even higher. ??If you are starting a company, all of it must be considered original stock. Anyway, I am very grateful to the comrades in the ordnance industry system for their recognition and support of our large-scale die forging manufacturing process development project. Chang Haonan also organized his language and took over what Zhang Yong said: In this case, I wont say too much if Im pretentious. During the project research and development process, I will do my best to arrange jobs that best suit your abilities for all participating comrades, and ensure that all staff, both staff and non-staff, are treated equally! There was another round of prolonged applause. But then, Chang Haonans tone changed: Of course, as the project leader, I have to say ugly things first. No matter which department you come from, since you have joined our project team, you must obey my command in terms of work... Although both parties knew the other''s inner thoughts, and both knew that the other party knew their own inner thoughts, in the end the layer of window paper was not pierced. So Chang Haonan still used the term "high emotional intelligence". Translation is: As long as the project is done well, you will definitely learn something and take it back. Then, I, and Comrade Yan Yongnian, the vice president of projects from Qinghua University, will introduce to you the specific situation of this heavy-duty die forging press project, as well as the detailed division of labor in the research and development content! Originally, for a project with insufficient resources, Chang Haonans plan was to concentrate on some key technologies in the pre-research stage, and then transfer to full-scale research and development after the project was officially approved. But now... Laughing to death, I have never fought such a rich battle! (End of this chapter) Chapter 505 Die forging press, project restarted! Chapter 505: Die forging press, project restarted! ?Originally, the people Chang Haonan planned to meet today were all seniors who had been engaged in the design of die forging presses more than ten years ago. They were actually more familiar with the situation than he was, and they could get straight to the point. But with so many helpers suddenly added, the situation deviated somewhat from the original expectations. ?Although these people should also be experts in structure and machinery, they can only be said to have mastered the necessary basic knowledge and generally meet the needs of the development of die forging presses. But if it is to be truly implemented in project development, after all, there are only a few people who can seamlessly switch between different research directions like Chang Haonan. So it is necessary to give an overall overview of the entire project. Zhang Yong next to him thought that today he would just clarify the specific participation of each unit in the project, but he did not expect that Chang Haonan would directly increase the intensity on the first day of meeting with everyone. But in this situation, how could he possibly object to Chang Haonan''s intention? ?Therefore, after only a moment''s hesitation, he announced to the more than 100 people present that the meeting was temporarily adjourned so that he could go back to get necessary items such as paper, pen, and computer. ??Everyone in the arms industry had already been reminded of the importance of this opportunity a few days ago. Although they were a little surprised by the rapid progress, they all got up and quickly left the venue in accordance with Zhang Yong''s request. The huge small auditorium quickly returned to peace. Yan Yongnian, who was sitting at the long table closest to Chang Haonan, watched the crowd leave neatly from the door, and sighed with emotion: He must be the big brother of the military-industrial system...look at his combat power... ?Chang Haonan just picked up the tea cup and quickly waved his hand to Zhang Yong and said. Zhang Yong scratched his hair in distress: ?Although the scope of his past research was generally broad, it was basically limited to things flying in the sky. Whats more, my own family members know their own affairs, and they also face their own difficulties. Learn from each other and make progress together... ?Hearing others praise the military industry system, Zhang Yong, who is one of them, is naturally proud. ??Now that there are only a few core members present, some topics that were inconvenient to talk about just now can be discussed. Professor Yan doesnt have to say that. The main business of the Ordnance Industry Group, including this heavy-duty die forging press, should be regarded as "running on the ground." Although they remain the same, there are still some differences. The weapons industry system is so active this time because it feels the pressure. It is said to be cooperative participation, but in fact it is to learn from your side... I also hope that Mr. Chang, Professor Yan and other comrades will not hesitate to provide guidance..." Yan Yongnian has experienced so many years of ups and downs, and naturally knows that the so-called "learner" is mainly Chang Haonan. They just happened to be present, so they were added behind, so they did not reply. The subsequent data destruction was obviously deliberately done by someone, which illustrates some problems... Besides, this progress does not necessarily have to be at the technical level "Now in the aviation industry, even enterprises of the size of Guizhou Airlines have been pulled out, and they have become a positive example of the market-oriented reform of state-owned enterprises. The pressure on our arms industry is indeed great. Several major companies will start grouping early next year. Reform, at this moment, time is very urgent..." But Chang Haonan was by his side, so it was not his turn to be distracted. ?However, Chang Haonan himself could say that Zhang Yong could not take it seriously. He immediately said with a solemn expression: Mr. Chang, although these comrades are participating in the research and development project of the die forging press, I would still like to trouble you if you have the conditions to give me some advice in various aspects... On the one hand, he said this because he had to be modest no matter what, but on the other hand, he did have this idea. In recent years, the attitude towards state-owned enterprises has been to focus on the big ones and let go of the small ones. However, there has never been a clear definition of what is big and what is small. Everyone is left to figure it out on their own during the operation. ??If the machinery industry system at that time could be a little more united, and Mr. Shen Hong would not be squeezed out, this project might not have been abandoned halfway. Although he did not continue talking, he obviously remembered what happened to the die forging press back then. In fact, Zhang Yong had no choice but to choose to seek help from Chang Haonan. System Engineering Division II is responsible for three areas of business: weapons industry, nuclear industry, and military-to-civilian conversion. ?Due to policy reasons, the nuclear industry cannot develop just as you want. Although there is no performance pressure, it is impossible to achieve any results in a short period of time. ?The conversion of the military to civilians was indeed a hot topic more than ten years ago, but now it is the late 1990s. All those who should have been transferred have already been transferred, and the bonus period has long passed. Only the arms industry is left to operate. But the main business of the ordnance industry is ground equipment and construction machinery. Including both military and civilian uses. ?Although it doesnt sound too high-end, its just a low threshold, and its not easy to do well. ?Even, because the threshold is low and not too sensitive, many countries that are not competitive in fields such as aerospace can actually point out their expertise in this area. ?For example, Germany, Italy, Sweden, Japan and even South Korea are all strong competitors. Even before Chang Haonan was born, the aerospace and even shipbuilding industry could still play a cost-effective role. After all, these things are still a seller''s market. As long as you can get the things out, you don''t have to worry about selling them. Didnt you see that even helicopters made in India can be exported? But the weapons industry does not even have this condition. ??Also one step behind, and now being pulled further and further away, Zhang Yong must be anxious to get angry. Dont worry, I know a lot about this. ?Chang Haonan is already very familiar with this gameplay. It would be better to say that this is the way of cooperation he expected: In the aviation industry, I am working on a new generation of aviation engines, which is actually a similar idea. ?The original intention of this sentence is just to stabilize Zhang Yong''s mentality, but I have to say that it is a bit Versailles. So he got a complicated look from Zhang Yong, as if he were looking at a monster. ?While a few people were chatting, the 100 people who had just left to get supplies for the meeting also returned to the small auditorium one after another. A few people ended the topic in a very tacit understanding. The first technical seminar on the research and development of die forging presses officially started. The basic knowledge about die forging presses and past research experiences were naturally introduced by Yan Yongnian, who knew the situation best. You are all experienced researchers in the field of military research. I will not say more about the significance of hot forging technology and heavy-duty die forging presses to the national economy and industrial production. After all, Yan Yongnian has been a professor at Qinghua University for more than 20 years. Once he starts teaching, even if he is just sitting in his seat, his whole temperament changes suddenly: Now, Ill start directly from the basic principles of the die forging press Following his introduction, two schematic diagrams were displayed on the curtain of the small auditorium. The basic principle of a hydraulic machine is Pascals principle learned in junior high school physics. Two closed chambers filled with working fluid and equipped with plungers or pistons are connected by pipes. When a force F1 acts on the plunger, an upward force F2 that is much greater than F1 will be generated on the large plunger, causing the workpiece to deform. The picture on the right is the simplest structural diagram of the hydraulic press body. The first part is obvious knowledge to people here, so Yan Yongnian just brushed it off. Soon, the content of his narrative entered the part about past research experiences. "In the late 1980s, under the leadership of Academician Shen Hong, we designed a 68,000-ton heavy-duty forging hydraulic press. The main body adopts a prestressed steel wire winding structure. The frame is composed of upper and lower arch beams and columns. It is connected by steel wire ropes. They are intertwined..." "Because the research at that time was stopped midway, and some key technical data were later lost, so now, after we have sorted out the remaining data, we have concluded that the main problem with this plan is the stress distribution of the steel wire winding layer. It is difficult to make it uniform, and the requirements for manufacturing and assembly accuracy are extremely high..." At the end of the introduction, the situation is very similar to what Chang Haonan learned before. Just added more details in some details. Professor Yan. ?Chang Haonan finished writing the last stroke in his notebook, then raised his head: "I just did some calculations in my head. In this kind of prestressed steel wire wound structure, the unevenness of the stress in the winding layer should be positively related to the frame structure, that is, the span between the upper and lower arched beams. And the larger the span, the better the span. The alignment requirements for arched beams are also higher. From this point of view, this structure should be more suitable for small and medium-sized presses with lower pressure, so why did you choose this route for an equipment of nearly 70,000 tons? Is this... Yan Yongnian was stunned by Chang Haonan''s quick response. He turned his head and looked back and explained: "We originally planned to continue the three-beam and four-column structure of the 10,000-ton hydraulic press, but this structure was not able to withstand eccentric loads. During the use of old equipment, we found that the eccentricity under the maximum load can generally reach 100% of the maximum span. Third, tilt and horizontal displacement are likely to occur between the movable beam and the workbench under unbalanced load. This is still the case for a 10,000-ton press. If the 68,000-ton press still uses this structure, the problem will only become more serious and it will not be able to be put into normal production at all. Chang Haonan lowered his head and thought for a moment, going through the relevant knowledge he had read before in his mind: What about the plate and frame combined structure? I remember that the Soviet Unions 75,000-ton press, including the 65,000-ton die forging press exported by the Soviet Union to France, should all have this structure. "We have also tried this kind of rack, but found that the structure is complex, there are many connections, and the effective area of ??the rack is greatly weakened. Moreover, in the multi-body modeling process, the processing of redundant constraints and prestressing is extremely complicated, which is completely beyond the scope. Our theoretical level at that time. Speaking of this, Yan Yongnian showed some regret: Let alone production and manufacturing, even the design work has just started, but it cant continue at all. ?However, after hearing this explanation, Chang Haonan''s eyes lit up - What he is worried about is actually the difficulties in production, processing, and material technology, which are difficult for him to deal with in a short time. "If the difficulty lies in multi-body dynamics analysis, this is exactly the part I am good at..." He looked at Yan Yongnian not far away: So, I think we can try using the board and frame structure again! (End of this chapter) Chapter 506 Just right, a little research Chapter 506 is just right, a little research This kind of discussion about the choice of technical route is naturally not easy for most researchers who have just begun to understand the situation of this project to interrupt. Only a few people with whom Chang Haonan originally planned to meet were able to participate in the discussion. Although several old comrades worked together under the leadership of Academician Shen Hong more than ten years ago, after the die forging press project was suspended, these people were scattered to several different research institutes far apart across the country for various reasons. mechanism. ??Although they are still more or less continuing to study heavy-duty hydraulic presses, there is almost no academic exchange between them. So in fact, they now know no more about each others research content than Chang Haonan, who met for the first time but had read the materials specifically. ?So, before Yan Yongnian could even think of how to speak again, another voice sounded: My supervisor and I have systematically studied the plate-frame composite structure rack for a period of time in the past few years. The speaker was a young professor from Central South University of Technology, Han Huiming. He is only in his early 30s, so of course it is impossible for him to have participated in the research and development of projects ten years ago. ?However, his mentor was one of the important experts responsible for the overall design of the rack mechanics at that time. ??While Han Huiming lowered his head to drink water, Zhang Yong, who had been listening quietly next to him, interrupted: If this is the case, how have other countries overcome this problem? While destructive stress testing is accurate and simple, it is a complete miracle of strength. ?Although he has already moved to an administrative position, he also graduated from a mechanical design major in the past, so he still has some basic concepts in his mind. The biggest difficulty in research in this area is the lack of practical experimental methods. ?Han Huiming quickly put down the cans and bottles again and solemnly replied: "Our country''s foundation in this area is already very weak, and it requires a lot of time, material and financial resources. Zhongnan Industrial is not a school with deep pockets, and our research team has no say in the allocation of funds, so... the research progress has been constant. Its all relatively slow. Non-destructive stress testing methods, Chang Haonans impression mainly includes magnetic measurement and diffraction methods, but the accuracy is average and in some cases cannot even be quantified. The old man is too old now and in poor health. He really cant make the long journey from Hunan Province to the capital for meetings, and he is unwilling to be an outsider and watch Chinas own heavy-duty die forging press come to fruition. "Board and frame composite structures are faced with giant hydraulic equipment of more than 30,000 tons. Due to the amplification effect, it is impossible for us to use a scaled model to judge the stress of the actual equipment. But if we conduct a 1:1 In actual testing, it is difficult to measure the local stress of large-sized components. "The traditional method is to design from a theoretical level first, and then conduct actual destructive tests on key weak parts of the whole machine to demonstrate the feasibility of the theoretical calculations, and then assemble the loose parts into large components step by step. During the process, the Key large components undergo the same testing, which is why the French chose to purchase a finished device directly from the Soviet Union instead of developing it independently. " "However, now that Mr. Chang has enough funds and manpower, as well as the support of comrades in the ordnance industry system, I feel that we are fully qualified to promote technology research and development in this direction. After all, rack modal analysis and dynamic design are Blocks are not only useful here, but also have great significance for other equipment manufacturing industries in the future. ??In a place like the Commission of Science, Technology and Industry for National Defense, if you really have people who are completely ignorant of technology as the supervisor, many tasks will not even be able to be carried out. Before Chang Haonan could speak, someone mentioned what he was best at. ??In short, it''s okay to do it once or twice, but if he wants to make the entire forging press purely by this method, he will probably have hundreds of millions of funds on hand... So he simply sent his most proud disciple here. It can be regarded as settling a worry. Not quite enough. ?The operation is extremely complex, and only one site can be detected at a time. If there are multiple locations on a workpiece that need to be detected, one sample will have to be destroyed for one test. ?Han Huiming held a can full of tea in his hand. After everyone''s attention was concentrated, he continued: "We have also tried, and even some time ago, we tried using the software developed by Chang Corporation, but it is always difficult to converge on the results after entering the calculation step. Many parts need to be simplified during the modeling process, and the reference value is very limited. What if we use numerical calculation method? Everyone''s eyes naturally turned to Chang Haonan. This problem does exist. He nodded bluntly. Although there is no computer in front of him, Chang Haonan can now review typical problems that may arise during the simulation process even in the human brain: The plate and frame combined die forging press has too many structural parts and the contact problem is too complex. The traditional tetrahedral model composed of structured mesh often has strange stress concentration points at the nodes on the edge of the contact surface. If there is a weak slip between two objects in contact, penetration will easily occur, and if the overall component undergoes relatively large deformation, node self-locking will occur. In short, it is normal for problems to occur. Hearing Chang Haonans almost unthinking judgment, most people couldnt help but have expressions of regret on their faces. After all, this seems to mean that we can only return to the traditional method just mentioned by Han Huiming. But Han Huiming was the opposite. Having conducted research in this area, he knew that Chang Haonan could point out the essence of the problems they faced so calmly and quickly, indicating that the latter had considered this issue before. Definitely come prepared. If this is the case, the preliminary research of this project may last for a long time... Even if funding issues are not considered, destructive stress testing cannot be done quickly... An expert from the Northern Vehicle Research Institute who is relatively knowledgeable in this area sighed and said. A few years is indeed too slow, and the timetable I set cannot wait for such a long time. Chang Haonan waved his hand, sat upright, and said to the more than a hundred people participating in the project in front of him. Not only was the weapons industry system impatient and couldn''t wait too long, in fact he couldn''t wait either. ?According to the timetable of 601 and Sukhoi, the manufacturing process of the rear fuselage bulkhead of the J-11A/Su-27SM will be upgraded from the current segmented manufacturing and then welding to integrated die forging. In addition to reducing working hours and improving production efficiency, it is also a technical preparation for the manufacturing of next-generation fighter jets and future large passenger aircraft. It doesnt matter that Damao already has two 75,000-ton hydraulic presses, but if the progress of Chinas heavy-duty presses is hindered, it will inevitably have an impact on the localization progress of many subsequent models. Han Huiming, who had been looking forward to it for a long time, his eyes lit up He knew that Chang Haonan was too busy to micromanage all R&D work. In this way, different people must be actually responsible for each subsystem. The board-frame composite structure is the research direction that he and his tutor have been adhering to over the years. ??If he can really continue with this configuration, on the one hand, it will put an end to the teacher''s regrets in his early years. On the other hand, for him, a newcomer in an unpopular major, it will almost be enough to change his destiny. Not to mention anything else, the statement "responsible for the main frame structure design of China''s first super-heavy die forging hydraulic press" is absolutely valuable. Stress testing of oversized workpieces is an engineering problem. Since the engineering problem cannot be solved, we can change our thinking. "In terms of numerical simulation technology, the latest version of the TORCH Multiphysics software, which will be released soon, just adds unstructured overlapping grids. This definition method allows the use of hexahedral models in the model, and the model boundaries are flexible and variable, which is very suitable for dealing with Calculation of multi-body relative motion and large deformation problems. On the other hand, from a more basic mathematical theory, I happen to have done some research on the direct constraint method to deal with geometric nonlinear problems. In this way, although it is still impossible to completely break away from the experiment, most of the work can be done on paper, and the accuracy and quantity requirements for stress detection will be greatly reduced! Actually, this is indeed a coincidence. The purpose of releasing a new version in such a hurry was to solve the problems faced by Institute 601. But just enough to eat two fish. But to outsiders, this seems like "Mr. Chang has figured everything out." Zhuge is nothing more than this in his second life. Then... our technical solution is initially determined to be a plate and frame combination? Yan Yongnian was in charge of the overall design back then and had no preference for the specific route to be adopted. ?As long as the die forging press can be built. Thats right, let me assign the work tasks. Following Chang Haonan''s final statement, the atmosphere in the entire small auditorium became serious. "Currently, since Jiangcheng Heavy Machine Tool Factory, which is responsible for the actual manufacturing of forging presses, has not yet been officially in place, the personnel are currently divided into five research groups, which are responsible for overall structural design; load-bearing and deformation analysis; force flow transfer simulation and monitoring; hydraulic, Preliminary research on auxiliary systems such as sensing and industrial control, as well as the development of supporting equipment required during the installation of the die forging press body, such as tooling trusses. The specific person in charge of each group is... For Chang Haonan, this process is already familiar. Next, its time to have fun again! (End of this chapter) Chapter 507 License application from the UK Chapter 507 License application from the UK ? ? If it is easy for Chang Haonan to undertake a turbofan 10 project, then adding this heavy-duty die forging press project, it does start to make him feel a little busy. After all, there are many things in this area that he needs to learn while doing. As the level of participating projects gradually increases, and the difficulty and scale continue to increase, Chang Haonan encounters a situation more and more. That is, before completing the project itself, he needs to first build the tools needed for the project. If doing a project is like rummaging through a box, then at the time of the Turbojet 14 and J-8C, it was about the height of a hurdle, and you could climb over it with two legs and a run-up. ??But when it comes to the turbofan 10 and the super-heavy die forging press, it becomes a high wall. If you want to get over it, you have to use some tools. Of course, from another level, this is also a good thing. There are many tools that can circumvent the wall. ?? And if Chang Haonan has already built a ladder when everyone else is pole vaulting, then he can use it to collect tolls from people who want to climb over the wall later. So as this topic continues to develop, it is easy to go into a weird direction... You came here today just to tell me about this, right? So, Chang Haonan thought for a while and then continued: Now our group office only has an office director. He is so busy just handling the coordination work between various departments every day that he has no time to eat. When the manpower is enough, we will arrange a general section chief..." ?Shortly after Chang Haonan returned to the Computing Center of Beihang University from a meeting at the Northern Vehicle Research Institute, he met Yang Huimei, who came specially to find him. Chang Haonan said as he put down the folder and looked at the sender of the envelope. As a management professor, it was indeed difficult for his graduate students to find jobs even in the 1990s. Thats not the case. I received this email before I got off work today. ??They are indeed units that I have never heard of, and the content is nothing more than some congratulatory letters and correspondence. You can even pull out the ladder. I found these in the mailbox at the door. Although the things that can be put there are not important, it is not a problem to keep them piled up. Chang Haonans office director was transferred from a technical position and was a lubricant between various business departments. It was impossible for him to do odd jobs exclusively. Since the mid-1980s, the requirements for secretarial staffing have been very strict. There is no way. It is clearly stipulated above that there are level restrictions on the deployment of full-time secretaries. Chang Haonan, who was worried that Yang Huimei would continue on this topic, quickly changed the topic Then we can only set up another comprehensive department. But at the departmental and bureau level, there is indeed a need for such a person to help leaders handle affairs. Therefore, over time, the office director/deputy director, or the section chiefs of the comprehensive departments under the office have become the de facto team of secretaries. Yang Huimei said and pointed to the envelopes: ?However, Yang Huimei is right. Although this kind of thing is red tape with no practical significance, it still needs to be dealt with. The visitor first handed a folder in his hand to Chang Haonan, and then took out a few wrinkled envelopes from his bag and placed them on the table. Mr. Chang, I think its time for you to find a dedicated secretary. ?Yang Huimei gestured towards the folder in front of Chang Haonan: Sent from the UK, I want to ask if we can sell a numerical calculation tool. I dont understand the specific technical content, so I brought it to you. Out of curiosity, Chang Haonan opened the folder. Some time ago, a user agreement that complies with EU law has been compiled. As long as users choose to accept it, they can obtain trial rights for TORCMultiphysics. In order to cope with Europeans who love official document formats, Torch Group has even set up a standard format trial application form on the corporate website. More than 85% of the content is multiple-choice questions. All you need to do is fill it out and submit it. So generally, the business departments can handle these matters themselves. Even if you cant understand a foreign language. So, there are not many times when Yang Huimei needs to make a special trip. ?Furthermore, Torch Group currently only has one product, TORCH Multiphysics. There was actually a letter inside the folder. Professor Roger Elinor from Cranfield University. ?The letter mentioned the paper Chang Haonan submitted to CMAME. The other party said that he was very interested in the research content of the paper, but he did not have the tools at hand to carry out engineering application research. ?After being stunned for a moment, Chang Haonan realized that the other party was probably the reviewer of his article. ?Of course, in principle, it is not in line with academic ethics for reviewers to contact the author directly before the article is officially published. ?But no one has ever cared about it. What they mean is that they want to buy the professional enhanced version of the TORC Multiphysics software. ?After reading the entire content, Chang Haonan concluded to Yang Huimei: The unstructured grid technology mentioned in it will only be available in the latest version we will release soon. Why dont you just fill out the form? Why go to all this trouble..." The latter shook his head helplessly: Then I just ask the marketing department to write a letter rejecting them? The professional enhanced version of the software needs to be reviewed by Chang Haonan himself before being approved. However, he said from the beginning of its release that it would not be authorized for foreign users for the time being, so Yang Huimei did not even ask. In fact, most users may not even know that there is a Pro+ version on top of the Pro version. ?Chang Haonan closed the folder and put it aside: Well, yes, but you can attach a letter explaining the situation at the end. "say what?" ??Yang Huimei said as she took out the notebook and ballpoint pen she carried with her to take notes. Lets just say that the professional version of TORC Multiphysics can provide limited unstructured grid functions for theoretical research. They can go to the companys official website to fill out the application form. "However, for further engineering applications, due to the restrictions of our country''s laws and regulations, relevant technologies and engineering tools cannot be directly transferred to foreign users. If the other party really needs it, they can submit a project cooperation application to us and conduct it in the form of joint research, or Go directly to our companys official website and purchase numerical calculation services in the Engineering Calculation category. "that''s it?" As a veteran who often participates in various meetings, Yang Huimei has excellent sketching skills. She almost completed the record shortly after Chang Haonan finished speaking. Yes, its an advertisement for our company. But...will they really cooperate with us in research and development? ?Yang Huimei did not close the notebook immediately, but raised her head and asked with some confusion. This time... definitely not. Cranfield University is a research institution sponsored by the British Air Force. The project is likely to be sensitive and it is not easy to engage in international cooperation. Chang Haonan slowly shook his head: Furthermore, even after the Airbus incident, the British are not so easy to put down their arrogance and engage in reciprocal cooperation with China. Old Europe is very tall. Then this letter will be of no use? It is indeed of no use at the moment, but the change of concept does not happen overnight. ?Chang Haonan paused for a moment, unscrewed the mineral water bottle and took a drink of water: "This time the British thought of buying us a handy tool. Their attitude has changed compared to before. We just need to continue to exert this influence in a subtle way. Sooner or later, they will be willing to come over and ask for cooperation. (End of this chapter) Chapter 508 Even the mother who changed it to straight 9 doesn’t even know her. Chapter 508: Even the mother who changed the straight to 9 doesnt even recognize her On November 11, 1997, version 0.0.2.0 of TORCMultiphysics software was officially released. The reason why there is such a peculiar version number is because the first 0 represents the public beta version, the second 0 represents the Proplus version, and 2 represents the second major version. This is an update push only for Super Big Cup users. So the version number for Dabei users is still 0.1.1.0. But even so, this has become a watershed in the field of engineering numerical calculation. ??The new gridding technology introduced by Torch Company in this update is combined with a dimensionality reduction algorithm for strongly nonlinear partial differential equations. From the perspective of later generations, it was from this moment that numerical calculation, a tool whose original application scope was limited to a very few fields and was mostly used for reference and law analysis, was officially elevated to the level of "indispensable" . ??It also marked the first shot of Torch Group from obscurity to global fame. At least, thats what it said in the History of the Development of Data Computing published decades later. ??But if you want to go further in the aviation industry system, you still have to develop the helicopter as a signboard. The author said that although the software version 0.0.2.0 is very important to him and Torch Group, it is not as intuitive as what is written in the book. ?The person who came to greet him was Cui Wenxu, the general manager of Bingcheng Aircraft Industry Group. What really helps Torch Group go global is the continuous development and progress of Huaxia Industry driven by it. ?However, Chang Haonan himself, who occupies more than one-half of the book, scorns this statement. ?Of course, the complaints are just what they say. The five-digit monthly salary in the late 1990s was still not good enough. As the unit most closely related to Chang Haonan, China Aviation Industry Corporation almost naturally became the first recipient of the new version update. The luckiest among them is Factory 122 in Bingcheng. Therefore, although Cui Wenxu only knew a little about helicopters, he still showed enough respect for Liu Hongbo, who came to work on the project in person. ?Poor Professor Liu was just dragged into the trap by his junior brother with a generous salary, and the first thing he did was to go on a long business trip. So the difference is still drawn. A company or a product cannot exist in isolation from the general environment. Bingcheng Motor''s achievements can consolidate its position within the Bingfei Group. Professor Liu, I have admired you for a long time. It is a great honor for you to come to our Ice City in person... The textbook was actually written by the other party. After all, the Super Large Cup was only released to a very small number of users at the time, and 95% of users had no chance to experience it, or even knew that this model existed. ?Although he got his position by building cars, Bingfei is still a unit in the aviation industry system, and its core is still the helicopter business. Because the installation CD of the new software came with Liu Hongbo, who had just been appointed as the manager of the numerical calculation business department by Chang Haonan for a few days. And I have to fly back to school for two classes every week. It is simply unreasonable. In fact, as far as the latter''s identity is concerned, it can even be said to be a bit too enthusiastic... Hello, Mr. Cui, would you please come out and make a trip in person... As he spoke, a long breath came out from in front of him, and his glasses were covered with a layer of frost. In mid-November, the temperature in Ice City was already below freezing. How could Chang Haonan, a Northeasterner, think of reminding others to pay attention to the temperature? So Liu Hongbo, who set out from the capital, was unprepared for this. When I got off the plane, I went directly into the terminal and got on the bus, so I didnt feel much. Now I got off the car and stood at the gate of Factory 122 for a while. I was almost numb from the cold. But in order not to affect the image of Torch Group, we have to hold on... Fortunately, Cui Wenxu saw that Professor Liu was not well equipped and could not adapt to the dry and cold weather in the Northeast. He took off the leather hat on his head and handed it to him, and then walked quickly into the factory together. As he walked, he did not forget to introduce the old man who had been following him just now. ?Although he looks ugly, he is energetic. This is Comrade Guo Jingshan, the person in charge of the Zhi-9 technology introduction project and the chief designer of the Zhi-9C, Zhi-9 armed type and civilian H425. Are we going directly to the factory? ?Liu Hongbo looked at the increasingly larger buildings in front of him with some doubts. Even though it was his first time here, he could tell from the tall and unlayered style that this should be a production workshop. Im really sorry, Professor Liu, the design work during this period was all completed in the design studio here. Guo Jingshan, who was walking next to him, replied: "In the beginning, our 602 Institute was just a research laboratory supporting the 122 Factory. Later, although the scale became larger, we still retained the tradition of placing the design studio inside the factory..." As he was talking, several people left one after another. Entered the workshop. The spectacle lenses that had just returned to transparency were suddenly covered with fog again. Fortunately, there was sufficient heating inside the workshop, and Liu Hongbo quickly saw the whole picture inside. ?Having done many projects, it is naturally not the first time for him to enter this kind of place, but compared with other places he often visited before, the production line at Factory 122 seems a bit bleak. ??If we only look at the aviation business, then Bingfei and Guifei are basically brothers in the same boat. ?It is located in a remote place and there are no popular models. In the huge workshop, there are only a few scattered helicopters of different versions and models. On the contrary, further away on the production line, there seems to be more of a small twin-engine propeller aircraft. Ashamedly, our 122 factorys operating conditions in the aviation business are average, so the number of orders is not too many, and most of the work stations are in a state of shutdown. Regarding the current situation of Bingcheng Aircraft Group, Cui Wenxue is generous: "Thanks to the help of Mr. Chang of your company, our small aircraft obtained airworthiness certification from the United States and the European Union without much effort, and then we signed a large order for 30 aircraft. Otherwise, in this workshop, Not a few people could be seen at a glance..." Since the Y-12 is the only aircraft in China that has undergone FAA airworthiness certification before, Chang Haonan had previously involved many technicians from Ice City when he was researching anti-icing technology and negotiating with the EU. Thats why Cui Wenxu knew the ins and outs. Hearing this, Liu Hongbo finally understood why people were so enthusiastic about him. Of course he knows his stuff. He is quite famous in Jinghang University. Who knows who Liu Hongbo is after leaving school? He has done many projects in Haojing before. How could he ever be greeted by the general manager in person? It was just for the sake of Chang Haonan and the Torch Group. The previous confusion was that Bing Fei did not seem to have any direct relationship with his junior brother. ?But it makes sense now that I think about it. ?Given the various big news that Chang Haonan has made in the past year and a half, the entire aviation industry has probably been influenced by him to some extent. After a brief tour of the workshop, Liu Hongbo took the lead in returning to the topic: Mr. Cui, Mr. Guo, would you like to go take a look at the helicopter design that needs our assistance first? The two people next to them looked at each other, and it was Cui Wenxue who spoke: "Okay, let Mr. Guo take you there to understand the situation. I don''t have a deep understanding of aviation technology, so I won''t go to the layman to guide the expert." ?After a brief farewell, Cui Wenxue left the workshop with a few people. ??Guo Jingshan noticed Liu Hongbos curious expression, so he explained while leading the latter towards the design room: Mr. Cui mainly manages the automotive business, and he basically leaves me responsible for specific issues related to aircraft design. The heads of the groups under the Aviation Industry Corporation of China generally have at least relevant educational background. Bingfei Group and Cui Wenxue are in extremely special situations. "I see." Liu Hongbo nodded: Thats not bad. ??If a leader cannot understand what he is doing, it is better to at least know how to let go than to give blind orders. Thats true, if we hadnt made money from selling cars, we wouldnt have been able to afford the money to ask you for help this time ??Guo Jingshan replied with a smile. While speaking, he had already brought Liu Hongbo to a computer in the design room. This is our preliminary plan for the subsequent development of the Z-9 model. If nothing else happens, we may have long-term cooperation..." ??The R&D strength of Bingfei Group is really weak. ?Even though we have tried our best to expand in the past two years, Bingcheng has inherent limitations on development. ? And it is really difficult for a technical team full of novices to succeed, and it cannot be led by Guo Jingshan alone. So calling in foreign aid is a more sensible choice. Let me take a look. ?Liu Hongbo put aside the hat Cui Wenxue had given him before, sat in front of the computer and started browsing. What surprised him was that the entire document was full of details and very long. Even to some extent, it can be said to be a development plan for the helicopter industry! Should we develop four types of series based on the Z9? Liu Hongbo raised his head and looked at Guo Jingshan, who had been standing beside him. Thats right. The latter nodded immediately: Some time ago, we have solved some defects in the transmission structure of the Z9 from the prototype, and found that this model has the potential to develop to about 6 tons. "So, our current plan of Bingfei is to rely on the Z-9 prototype to develop four different configurations: assault transport type, special armed type, naval type and civilian type, and then build a complete 4 -The 6-ton helicopter model spectrum has become the leader in my countrys general aviation field! (End of this chapter) Chapter 510 The paper is on the cover again? Chapter 510 The paper is on the cover again? ?One morning a few days later, Chang Haonan, who had just gone to work, opened his mailbox as usual. At this time, the application of email in China is still limited to a few industries, and its popularity is not high. ??And it was basically a spontaneous act by some people, and it did not form an overall norm that later or in European and American countries, emails were regarded as documents with legal validity. ?Its a bit troublesome to face the piles of paper documents all day long, but if you think about it on the bright side, there will be fewer bad things like harassing emails. So when he saw three unread emails in his mailbox, he was a little surprised. ?But if you take a closer look at the content, they are all heavyweight. The first letter was from the editorial department of CMAME, giving feedback on his review comments. "So fast?" You must know that less than a month has passed since the submission of the manuscript. Anyone who often submits manuscripts to SCI will know that this efficiency is already quite ridiculous. After the brief accident, Chang Haonan clicked on the email, opened the folder where the paper was saved, and subconsciously prepared to revise the manuscript. ?While giving a mental evaluation of "fairly discerning", he clicked on the link and confirmed the content and layout of the paper when it was finally published. What''s more, since his rebirth, the only thing Chang Haonan has declined is probably his English level. Xu Yang has not changed a word in the main text, so it is normal to make some mistakes. The paper does not need to be revised and can be published directly. ?Of course, journals at this time do not publish online in advance. ??But when he switched the page to the browser again, there was no attachment in the email content just loaded. Generally, the review comments will be consolidated into one document and sent. Chang Haonan''s hand holding the mouse shook and he almost threw the email into the recycle bin. ?However, if you dont need it, you dont need it. After this wave, the emotional value is always full. Don''t need Don''t like.jpg CMAME, as the top journal in the industry, gave a "directly published" opinion, which obviously showed full respect for this research result and Chang Haonan himself. Otherwise, there is no way to reflect the value of being a reviewer. So we have to wait until it is officially published. !! Many institutions, including Beijing Hang University, even subscribe to paper journals. Just when Chang Haonan was calculating the approximate official release date in his mind, and thinking about whether the Torch Group should make some big news to coordinate with the publicity campaign, he suddenly found another piece of content at the bottom of the link. But this time, the content of the email was only a few sentences and a link. ??Although with his current influence, even if he does not publish a single article, he will definitely be able to successfully graduate with a doctorate based on the national defense report. He no longer needs to rely on papers to establish his status in the industry. The link requires Chang Haonan to click on it and finally confirm the format and content of the publication. According to convention, papers submitted in October and reviewed in November will generally have to be scheduled until April or May next year... Based on his experience in submitting papers to SCI in his previous life, even if there are no problems with the content of the paper, the reviewers will raise some issues with wording or grammar. ?This is like some leaders, although they do not need flattery from their subordinates, they still like to listen to some flattery content. He was asked to provide a picture for the cover of the first issue in January 1998 Its somewhat of a surprise. Generally speaking, academic journals are similar to regular subscription magazines, and will release corresponding publications in advance. For example, the December issue is basically published in mid-to-early November. So this January issue is definitely the result of forced stuffing. Moreover, it also took over someone elses cover. CMAME is relatively ethical. It only has one outer cover and one outer back cover, unlike some journals that have five or six covers to make money. Chang Haonan had no choice but to silently express his regrets to the author of a paper who had been pushed off the cover by him... After thinking for a moment, he picked up the phone again and called Xu Yang and Yang Huimei. Needless to say the former, she is the one who has appeared on the most cover pages of papers and has experience in this field. Although the latter is the head of the marketing department, he also handles some publicity work. After all, Torch Groups biggest brand is Chang Haonan himself. In the past, there were not many tasks that required additional publicity. Setting up a separate publicity department was a bit wasteful. Yang Huimei has always been the author. Of course the latter refused at first, but it was similar to Liu Hongbo. Considering Chang Haonan and the salary paid by Chang Haonan, it was really good in the end. Want to make a paper cover related to Torch Group? Xu Yang gently straightened his hair, which was a little messy from running upstairs, and sorted out his thoughts: Because we have not signed a sponsorship contract with Elsevier, no obvious commercial promotion content can appear on the cover of the journal. Whats more, CMAME is a top journal and the management is stricter..." "I know, that''s why I brought you two here to see if there is any more subtle way." Chang Haonan replied. ?Yang Huimei, who was sitting next to Xu Yang, was concerned about another issue. Mr. Chang, is your paper on the cover? The cover of the top issue? Or did you jump in line? ?Although her research direction does not involve specific technology, her SCI papers also have management/operations research (MS/OR) directions, so she still has a concept of these things. At the end of the 1990s, China was not even a major scientific research country, let alone a strong one. ?If you can publish a paper in a less prestigious SCI, you can almost get a teaching position in some ordinary universities. Even second or even third works are valuable in certain scenarios. ??Yang Huimei, as a professor at Beijing Hang University, has only published two or three SCI articles. As for what top issue and what cover... ?That has never occurred to me. Xu Yang turned his head and looked at the stunned Yang Huimei with very puzzled eyes, as if he didn''t understand what she was making a fuss about: Thats okay, wasnt it the same as the last article? What she was talking about was of course the control paper that made Chang Haonan and her the godfather and godmother of DE algorithms. And the last time? ??Yang Huimei does not study control theory, but she has heard that Mr. Chang published a very awesome article before. ?The majors are different, and she has not read the content. I dont even know some of the specific details. ?Of course, she knows that now. Looking at the two monsters in front of her, Yang Huimei felt a sense of powerlessness in her heart. How could I be able to sit down and have a conversation with you two sleeping dragons and phoenix chicks Fu amount.jpg Looking at the somewhat depressed Yang Huimei, Chang Haonan felt that even out of concern for employees, she should encourage her. Otherwise, her work efficiency will be reduced, and she will suffer losses in the end. Actually, publishing papers is just one of the ways to prove your own value. If you think about it from other aspects, Professor Yang can also contribute to the country and society in the business field..." When she heard this sentence, Yang Huimei thought it was right. She quickly cheered up and started discussing the design of the magazine cover. ?How to express the characteristics of Torch Group in a more subtle way. ??The final result is to add an unlogged, calculated cover of TORCMultiphysics software to the cover... After the plan was finalized, Yang Huimei got up and left, preparing to return to her office in another building. But as she walked on the road, the more she thought about it, the more she felt something was wrong. You can also contribute to the country and society in the business field... ?Yang Huimei stopped: Doesnt this mean that I have no hope in academia??? But she seemed unable to refute. Even more powerless... (End of this chapter) Chapter 511 Turbofan 9A ready to tap the ultimate potential Chapter 511 Turbofan 9A preparing to tap its ultimate potential ?Chang Haonan certainly didnt mean to look down on Teacher Yang Huimei. But to be honest, the subject of management itself is more practical than theoretical. There is really no need to take the paper too seriously. As a professor of management, being able to arrange jobs for all the graduate students under his command is a reflection of his ability... In short, after sending Xu Yang and Yang Huimei away, Chang Haonan finally took care of the first thing of the day. It also settled a minor worry. ?The paper itself is of course of little use to Chang Haonan, but he is somewhat looking forward to the impact it may have on the Torch Group and even the entire Chinese academic community. ?There are two other emails left in the mailbox. The content of the second email is much more ordinary in comparison. It was Liu Hongbo, who had already started working in Bingcheng, asking whether the technical ideas for helicopter sound field simulation were feasible Helicopters are slow and have poor maneuverability. The core of their survivability is the concealment brought by the height of the treetops. If they are discovered a few kilometers in advance, it will greatly increase the risk of being attacked by concentrated fire. The price is increased weight and complexity of the rotor. ?However, in the current 1990s, research on "quiet rotors" in various countries is generally still in its infancy. Currently, the calculation of helicopter rotor noise basically uses the Lighthill acoustic analogy method based on the FW-H equation. ?Chang Haonan gathered his thoughts and began to think about the content of the email. Generally speaking, the best way to suppress HSI is to increase the rotor diameter/number of blades and reduce the linear speed outside the blades. ??For military helicopters, excessively loud and easily identifiable sounds can also make it easy to be detected in advance. After thinking about it, Chang Haonan pulled out a few sheets of A4 paper from the printer tray next to him. As long as its not too outrageous. The so-called quadrupole source nonlinear noise is medium and high-speed impulse noise (HSI). ??Although Mi-28, AH64 and other models have tried to use some qualitatively effective technologies, in general, noise still ranks relatively low in everyones performance requirements for helicopters. Since lift is mainly obtained by the rotor, this type of HSI noise may not only cause hearing damage to the members inside the aircraft, but also cause instability factors such as rotor tip flutter, affecting flight safety. "After several days of trying, I found that this method performs well in calculating rotor thickness and load noise, but it cannot be used to solve the nonlinear noise of the quadrupole source, resulting in abnormally high noise during the helicopter''s hovering/forward flight process. For helicopters, the impact of noise is not just a matter of comfort. It should be said that the depth of research conducted by Bingfei Group was higher than he had previously expected. And if we completely use experimental methods, on the one hand, the 122nd Factory and the 602nd Institute do not have enough acoustic laboratories for helicopters, and on the other hand, the cost and development cycle cannot be guaranteed..." Helicopters like the Zhi-9, which already have limited power, and the 122 Factory, whose technological level is far behind that of European original manufacturers, obviously do not have the conditions for this... I am trying to calculate the flow field first, and then determine the rotor vibration through the flow field, thereby indirectly calculating the sound field to get the results, but there are some issues that need Mr. Changs guidance..." When the rotor speed is high, shock waves may exist on the surface of the rotor blades and extend to the spatial area. The flow field exhibits transonic and strongly nonlinear characteristics, and will emit very penetrating and discernible pulses. sound. Sound = vibration. Anyone who has ever done it knows how frustrating it can be to write formulas on a computer. Immediately afterwards, while sorting out the calculation ideas that emerged in his mind, he began to write furiously: "The FW-H equation has shortcomings in the universality of the research problem. The essence and premise of accurately calculating the rotor sound field is to calculate the rotor flow field. As long as the shock waves and tip vortices that may exist in the flow field can be captured through calculation, acoustics It is not difficult to ensure the accuracy of calculations..." Specifically, you can try to obtain the far-field sound pressure characteristics by integrating the sound pressure value on the surface surrounding all sound sources. The sound pressure value on the surface can be determined by Kirchhoffs formula..." In actual numerical calculations, the integration surface must be discretized into small surface elements, and the integration is performed on each surface element. The final result is the superposition of the contributions of each surface element, and dS is the area of ??the micro-surface element "The information obtained from the flow field calculation can be calculated on the Kirchhoff surface through interpolation and other methods. For the unstructured overlapping grid of the new version of TORCH Multiphysics, a method similar to the generation of hole boundaries in nested grids can be considered To determine the integral surface "Manually given a space surrounding the blade, which is similar to a "hole" in a nested grid, first loop through all the grid points and determine whether the point falls within the hole according to the spatial coordinates. If the point falls within the hole , then mark the point as 0, otherwise it is 1..." As for the flow field calculation, the essence is back to the numerical solution of the N-S equation. This is the core function when the TORCMultiphysics software was created, and I will not go into details here..." This is my understanding of the above-mentioned issues. It is just one persons opinion and is for reference only. And I wish you a successful completion of your project. ?The five pages of A4 paper were written very eloquently and quickly. After briefly checking that the content just now was correct, Chang Haonan put several pages into the scanner. Sheet-fed scanners were invented in the early 1990s and have now entered the Chinese market. ??Although the price is ridiculously high, Chang Haonan is not too poor with money after all, so he still gritted his teeth and equipped each office with one. After scanning it in, he directly sent the content as an attachment to Liu Hongbo in Bingcheng. After dealing with the two things without incident, Chang Haonan looked at the clock on the wall. Its almost time to have lunch. He clicked on the last unread email. This is a routine work report of the Turbofan 10 project. The kind that will be sent out every few days. He planned to have lunch after a brief look. However. Experimental results of flow heat transfer characteristics of special-shaped air film holes ?When he saw this title, Chang Haonan knew that he would not be able to eat his lunch. This research is crucial for the design of combustion chamber and turbine structures of aeroengines. He has previously used the basic control equation of flow heat transfer to calculate the film cooling effect of different shaped holes. But after all, this is a research direction that has never been done before, and experimental results are still needed to correct the numerical calculation method. Thats why it has been postponed until today. ?Thinking of this, he couldn''t sit still anymore. He quickly turned off the computer and put on his coat, ready to see the results. ? There is so much experimental data over the past month that it is impossible to send it all via email. In the Compressor Research Center of Beijing Hang University, Liu Yongquan, wearing a blue lab coat, stood in front of two computers recording experimental data. Next to him is Chang Haonan, who is looking at the experimental data attentively and comparing it with his own calculation results. "Judging from the results, for our experimental subjects, the cooling effect of dustpan-shaped holes is better than fan-shaped holes and simple forward-inclined holes. However, the influence of expansion ratio, hole inclination angle and expansion angle on cooling efficiency is still relatively complicated. ?Chang Haonan stared at the two screens at the same time and slowly gave his judgment. Actually, the key is that we do not have the means to directly measure the velocity and pressure distribution in the air film holes. On the one hand, we cannot buy the relevant sensors, and on the other hand, even if they are obtained through special channels, the accuracy cannot meet the requirements..." Liu Yongquan said from the side, obviously still a little regretful. When we engage in scientific research in China, we have never reached a stage where we get everything we ask for. Chang Haonan doesnt really care: The velocity and pressure distribution in the hole are the cause, and the displayed temperature field distribution is the effect. If the theoretical tools are advanced enough, even if the former cannot be obtained directly, it can be inferred from the result. ?Liu Yongquan opened his mouth, but was so shocked by Chang Haonan''s confident words that he had nothing to say for a moment. After a while, he spoke again: Under different environments, the heat dissipation effects of various hole types will also be somewhat different. For this part, it is not very useful to just test it in a laboratory environment. Actual testing is still needed to prove the feasibility of our design. ?Of course Chang Haonan has been prepared for this kind of thing: This is no problem. I will contact Liming Factory this afternoon and ask them to prepare to apply the new cooling technology on the second-stage prototype of the turbofan 9A. Whipfan 9A? Liu Yongquan was stunned: But the temperature in front of the turbine of turbofan 9 is a bit too low for our technology, and no effect can be measured..." Just modify the atomization level of the fuel injection structure and increase the temperature of the combustion chamber. Chang Haonan raised his head and said: Although the foundation of Turbofan 9 is average, the value of continuing to tap the potential will not be too great, but we are just changing the design without changing the process and materials, and the cost will not increase too much. The temperature in front of the turbine of the improved model is increased, which can at least improve some supersonic performance and reduce some additional fuel consumption. Seeing what he said, Liu Yongquan naturally had no objection. Mr. Chang, you are trying to squeeze out all the potential of Sibei... The words were somewhat complimentary. Its best to make the best use of everything. There are so many units in the Air Force waiting to be replaced. It will also be a big help to get the JH-7A out early..." (End of this chapter) Chapter 512 Finally able to independently produce turbofans! Chapter 512 Finally, we can produce turbofans independently! Although it is just an improved model, aviation safety is extremely important, and the necessary testing procedures must not be sloppy. What''s more, the utilization rate of new technology in this so-called "Spey reform" is almost more than one-third - The first prototype No. 9A-01 modified some unreasonable designs of the high-pressure compressor blades and oil supply part, replaced it with a new domestic oil pump, bearings and gear set, and integrated the original bearing components. This reduces the number of components and widens the surge margin. By this time, although there are still many modifications, they are still minor repairs to the prototype engine. Not only the performance calibration has not changed, but the core design of the hot end component has also remained original, so the basic performance has not changed much, except that the weight has been reduced by about 75 kilograms. But on the second prototype No. 9A-02, which was produced at the end of 1997, the changes were relatively large. ?In order to test the effectiveness of the new active cooling technology, Chang Haonan specifically asked technicians from the 606 Institute to modify the engine performance calibration. By improving combustion efficiency and upgrading aviation fuel, the temperature in front of the turbine has been increased by about 50-60C, reaching a level close to that of the third-generation turbofan engine. The intoxicated expression is slightly abnormal. At the entrance of the engine assembly workshop of the 410 Factory, Chang Haonan, Zhong Shihong, and Zhang Zhenhua stood side by side, watching the engine that had finally completed the factory''s complete machine inspection being slowly installed on the specially designed engine bracket. But this second prototype, due to huge improvements in all aspects, the original British parts could no longer adapt to its working condition. Shengjing, mid-January morning. Especially the processing of air film holes on the inner walls of turbines and combustion chambers. Not only does the processing of each hole require several more steps than the turbojet 14, but the subsequent grinding and quality inspection also require additional steps. To this end, the compressor of the second prototype engine was also modified. The blade separation flow active control technology developed during the development of turbofan 10 was used on the 9-12-stage high-pressure compressor blades to reduce the total pressure of the compressor. The ratio increased to around 22-23. ?Compared to a dozen accurate round holes, the dustpan-shaped hole with a forward angle developed by Chang Haonan is quite unfriendly to the EDM technology developed by the 410 Factory. The design of aeroengines affects the whole body. ?However, he still couldn''t hold it back and gently stroked the oil pipeline exposed on the outside of the engine casing. ? In order to speed up production, about a quarter of the components of the previous 9A-01 machine were directly assembled using parts imported from the UK. In short, although Chang Haonan could not wait to start testing this engine that uses a lot of turbofan 10 technology the day after posting the picture, even if the 410 factory specially set aside a production line and carried out production in three shifts 24 hours a day, it would still be It took more than two months to produce the 9A-02 machine. It was not until the engine was fixed by the hoisting team and started to be packed in cargo boxes that he reluctantly returned. Sibei, after more than 20 years of domestic production, we have finally created an engine that is 100% domestically produced The metal tail nozzle was bone-chilling, freezing Zhang Zhenhua, who was not mentally prepared. With the white mist rising in front of him, Zhang Zhenhua said with emotion. The temperature is about minus 20. However, since the research and development of the manufacturing process will take time, the electrolytic machining, electron beam welding, precision forging, precision casting and other technologies used in the production and manufacturing of this engine are still at the previous level. ?Zhang Zhenhua took two steps forward, stretched out his hand and patted the tail nozzle of the engine twice in mid-air. The yield rate is still much lower. Hence, all components are newly produced domestically. During this process, Factory 410 also verified the application of several key new manufacturing technologies such as metal spraying, vacuum heat treatment, trajectory welding, vacuum brazing, and CNC pipe bending, laying the foundation for the next step of manufacturing the turbofan 10. Yeah, but its a pity its a little too late... Zhong Shihong took out a ballpoint pen and signed his name on the factory slip and responded: After the introduction of SPEI, there was a period of vacillation for more than ten years. Now that we have made domestic models, even if their performance is better than the original ones, the prospects are relatively limited The introduction of Sibei also hides a love-hate relationship between the 410 factory and the 430 factory. The former insisted on continuing to develop turbofan 6, while the latter believed that it should start with Spey. If I must say it, it was a lose-lose situation in the end. ?At this point, it is no longer clear who is who. Fortunately, for the generation of Zhong Shihong and Zhang Zhenhua, they dont have many related memories. The smell of gunpowder between the two units has gradually disappeared with the advancement of the Turbofan 10 project and the deepening of R&D collaboration. Contradictions fundamentally come from competition in resource allocation. ?Now that Chang Haonan has almost increased the scale of China''s aerospace industry by an order of magnitude, the difficulty of dividing the cake has naturally been reduced a lot. Even so, after noticing that the topic between the two people was gradually moving towards the past, he quickly changed the subject: Its useless to talk about the past. As he spoke, Chang Haonan also took the pen from Zhong Shihong and signed his name. The production of the Turbofan 9A prototype is nominally as a technical demonstrator for the Turbofan 10, so the signature of his chief designer is naturally indispensable. No matter what, there must be a demand for dozens or hundreds of improved JH-7s, and the turbofan 9A can still make a difference in this regard. Its just a pity that Spey Aircraft converted to combustion. Now the QC130 converted from turbojet 14 to combustion has entered the design finalization stage. The Navy should not accept another gas turbine with similar power..." ?After the factory delivery procedures were signed, the staff quickly loaded the neatly packed engine packaging box onto a special Mercedes-Benz semi-trailer. ?This car may be the only 100% imported product in the entire Turbofan 10 project. The main reason is that everyone is really busy and has no time to build a special engine transport vehicle. The finished engine will be transported by this vehicle to Beiling Airport, and then transported by an IL-76 transport aircraft to 624 for necessary ground testing. Mr. Chang, what do you think the actual performance of this engine can achieve? ? Zhang Zhenhua, as the director of the production department, has not been involved much in the field of engine design, so he does not know the specific effects of these upgrades on the turbofan 9A. Dont have too high expectations... ?Chang Haonan shook his head, returned the pen in his hand to Zhong Shihong, and continued to explain: The design level of the Spey engine itself is not good. I spent a lot of time adjusting the data of the compressor and combustion chamber, but the matching degree is always average. After all, it is an improved model, and it is impossible to go to great lengths to redesign a core machine, so we can only make do with it. There was some dissatisfaction with the British in his words. ?Of course, the two people next to me wouldnt have any objections. After all, Mr. Changs ability is obvious to all, and he is indeed qualified to evaluate him in this way. In addition, because at the time of blade production, the multi-arc ion plating equipment in the factory was not yet in place, so the hot-end components had not yet used new coating technology, and the increase in temperature in front of the turbine was relatively limited. "Of course, on the other hand, the turbine front temperature of the Spey MK202 itself is already quite high. It is indeed true that the British can use such a high turbine front temperature to design such an engine with mediocre performance... tsk tsk tsk." ?At this time, it would be difficult for Zhang Zhenhua and Zhong Shihong to answer the phone. Thenhow much can some typical paper performance be improved? If its more specific, well have to do bench testing before we know it. At this time, a Jetta King stopped in front of the three people. The one driving the car is naturally Zhu Yadan. ?Chang Haonan opened the right rear door, turned back to the two people and continued: However, according to the performance calibration I did, the thrust at sea level can be increased to about 10,000kg. The total weight of the engine, according to the national standard, should not be higher than 1,750kg. After finishing speaking, he got into the car and signaled that the convoy could set off. Only two people were left messy in the wind. This is still called dont have high expectations? Zhang Zhenhua looked at Zhong Shihong next to him with a somewhat stiff movement. You should know that the sea level afterburning thrust of the Sibei MK202 is 9300kg, the national standard dead weight is as high as 1842kg, and the thrust-to-weight ratio is only 5.05. The turbofan 9A directly increases the thrust-to-weight ratio of the engine by nearly 15%! As you know, Mr. Chang has always been very demanding on projects. ?Zhong Shihong held up the cotton hat on his head. ? He ??actually felt it was a bit outrageous, but in front of Zhang Zhenhua, he still maintained his demeanor and did not show any obvious surprise: In short, I have begun to look forward to the performance of the turbofan 10... (End of this chapter) Chapter 513 The intersection of two eras Chapter 513 The intersection of two eras Later that day, Chang Haonan flew to Fucheng with the IL-76 transport plane transporting the engine. ??This is not the first time Chang Haonan has come here. ? He ??was sitting in the passenger seat of the truck transporting the engine, looking at the 624 gates in front of him, and couldn''t help but recall the situation when he first came here more than a year ago. When he was testing the turbojet 14 before, it was here that he perfected the national military standard operating procedures for the assessment of the total pressure distortion of the aeroengine inlet. At the beginning, his idea was just to make the testing process of the specific model of turbojet 14 legal. However, due to many subsequent coincidences, that operating manual-like document eventually became the basis and model for a new national standard. The ensuing series of butterfly effects directly changed the development path of the entire aviation industry in China... It should be said that in the nearly two years until now, he has achieved results that far exceeded what he expected when he was just reborn. ?Of course, he has already done almost all the projects that are easier to achieve results in a short period of time. But the last time he came to Institute 624, the theoretical director and secretary here was still Liu Zhenxiang. Among the leaders he came into contact with at that time, he should not be the one in front of him... The sound and inertia of the truck braking brought Chang Haonan out of his thoughts. Mr. Chang, we meet again. The leader was wearing a dark blue woolen tunic suit and a leather hat. Fortunately, the other party quickly introduced himself: Li Rongzai, who was transferred from Shengjing at the end of last year, took over the position of Academician Liu Zhenxiang. He got out of the car from the passenger seat, and several leaders of Institute 624 who had been waiting here came to greet him. Jiang Fuhe, the chief designer of the 624 Institute, had some interactions with each other at the turbofan 10 design review meeting. In the original timeline, after the completion of the SB101 test bench, Liu Zhenxiang still served as the dean of Institute 624 for a long time. ? And through hard work, I got the title of Chang Haonan''s "joint training mentor" from Du Yishan. ?However, in this life, perhaps due to the influence of Chang Haonan, he has transferred his organizational relationship back to Beijing Hang University as a professor. ?After saying hello and briefly chatting, Li Rongzai personally directed the staff to prepare to unload the truck. The rest are hard-core products like the turbofan 10. When I was working on the turbojet 14, I was responsible for the research and development of the fuel and oil delivery part. I met you several times during project seminars... ?Now when Chang Haonan publishes papers, the corresponding author writes himself... As for the person following Li Rong, Chang Haonan was much more familiar with it. In short, Academician Liu is obviously preparing to continue to shine in the education world, and the new Dean Li is one of the countless people affected by the butterfly effect. ?However, this must not be shown, so Chang Haonan shook hands with the other party enthusiastically. ?Of course, its just a name. Jiang Fuhe took out a bound paper material from nowhere and handed it to Chang Haonan. Chang Haonan was a little unfamiliar with this kind of dress, but when he heard the other party''s greeting, it was obvious that he had met him before. ?Although Chang Haonan himself is only in his early twenties, at this moment, he suddenly has a mysterious feeling that "the world is full of peaches and plums". Mr. Chang, this is the test content we have initially determined, modified according to the latest version of the national military standard, please take a look. The latter set a pattern for aero-engine testing standards, but after all, it only completed the part related to compressor intake distortion, and the workload was less than 10% of the engine testing process. The improvement and revision of other parts were led by Liu Zhenxiang and completed in 624. So even Chang Haonan himself is not very clear about the testing process after the version update. For a major modification like the 9A-02, although the content that needs to be tested is less than that of a new engine like the previous turbojet 14, it cannot be completed in a few days. Chang Haonan spent almost half an hour looking at the list of necessary test items. Now, I guess Ill be celebrating the New Year in Fucheng again Chang Haonan took out a ballpoint pen and signed his name at the end of the test project book, saying with some helplessness. Jiang Fuhe took the information in his hand and put it away. Hearing this emotion, he raised his head curiously: Mr. Chang spent the New Year in Fucheng before? ?Chang Haonan did spend a lot of time celebrating the New Year in Fucheng in his last life, but it was always at the Ninth Courtyard. Of course, this kind of thing cannot be said. There are not many in Fucheng, but there are quite a few people celebrating the New Year outside because of work. Fortunately, the other party just asked casually and did not continue to dwell on this topic. ?While the two were chatting and processing necessary documents, the 9A-02 prototype was also unloaded from the flatbed trailer and slowly transported to the interior of the high-altitude platform test workshop via the track. ?Chang Haonan quickly followed. After walking a few steps, his sharp eyes spotted a much smaller engine being transported out of another track next to it. Are there any other test tasks here? Chang Haonan stared at the small engine, which was about a quarter of the size of the turbojet 9A, for a while, but did not recognize the specific model. At this time in 1998, there were only a few types of Chinese aircraft engines, and most of them were directly or indirectly involved by him. It was a bit surprising to see a truth that suddenly appeared that he had no impression of. Oh, this is an improved model produced by our local Rongfa factory, the turbojet 6D. Isnt this the engine of the J-6? Is it still being modified? Chang Haonan was shocked. ?The Turbojet 6 is a super old-timer that was established in 1966. It was normal for him not to recognize it for a while. But its 1998, and you can still see improved models of the engines from your grandfathers generation? Of course the J-6 has been discontinued a long time ago, but arent there still J-5s in use... ?Jiang Fuhe, who was half a step behind, explained: Originally, Hongdu began to strengthen 5D at the end of 1996, and now it has basically been finalized. "But because the progress of the improved JH-7A in Haojing is far ahead of expectations, and it will soon be 100% domestically produced, this model, along with the turbojet 6D engine that has been extended its life, has lost its positioning. Entering the technical reserve..." Strong 5D To be honest, since his rebirth, Chang Haonan has never thought of this model. After Jiang Fuhe said this, he remembered that the Qiang 5D, as the last mass-produced model of the Qiang 5, was originally put into production in 1998 and discontinued in 2012... ?Of course, on todays timeline, it should have no chance of entering mass production. Its just pity Hongdu Group. It originally only had two main products, K8 and Qiang 5 (Chujiao 6 was discontinued at this time, but was resumed in 2015 in reality). Now one of them has been ruthlessly eliminated by the torrent of the times... Having said that, this model, which is improved on the basis of the J-6, is basically a specific solution to specific situations in a specific period. ?In the context of the 21st century, even Chang Haonan cannot do anything on this old machine... ?In the sunset in Fucheng, two engines go in and out, passing each other on the adjacent transportation track. Just like the two eras of Chinas aviation industry. (End of this chapter) Chapter 514 A helicopter thats too quiet? Chapter 514 A helicopter thats too quiet? ?While Chang Haonan was intensively conducting technical tests on the turbofan 9A, other units within the aviation industry system were naturally not idle either. Especially Bingcheng Aircraft Industry Group. Since the core power and transmission mechanisms of the helicopter have been improved before, the development of the Z-9 assault transport type was much smoother than initially expected. Liu Hongbo, who traveled between the two places to "supervise the war" in person, first determined the noise calculation method of flow field-sound field with Chang Haonan. He seemed to have an idea in this aspect, and soon began to take charge of his own business. ?It took less than three months of work to renovate the semi-finished aircraft, which was about 60% completed, and became the first prototype of the Zhi-9WY (armed-transport) aircraft. The only problem is the test flight. Originally, Chinas helicopter test flight process was relatively chaotic. Due to the huge differences in engineering principles and research and development methods between fixed-wing and helicopters, generally speaking, the proportion of tasks undertaken by test flight bases during helicopter test flights is relatively low. Most of the test flight work will be done locally at the manufacturer. Even the specific subjects of each OEM are not exactly the same. It can be seen from almost the whole city. In short, generally speaking, helicopters only choose some extreme climates according to actual needs in the middle and later stages of test flights to complete tests in special environments such as alpine/plateau/salt spray. ?When they chose to pack an An-124, they considered that this way of appearance would be very eye-catching. The goods shipped back from China are regarded as flight time subsidies for the crew. As Chang Haonan becomes more and more deeply involved in the research and development of aviation industry projects, the industry''s understanding of "work efficiency" has also undergone earth-shaking changes. Talk about and laugh at other small planes.jpg ?Hence, during the process of unloading the prototype from the warehouse, it was already watched intensively by curious colleagues and wall-crawlers. If the pilot''s proficiency is low, it will be difficult to save the situation once some emergencies occur. The first flight took place the next morning. ?Especially compared with several Y-5, Boeing 737, Y-7, MA-60 and JH-7A prototypes parked near the runway, this is especially obvious. However, the situation of Zhi 9WY is rather special. ? Among other things, the low-noise propeller designed by Liu Hongbo was calculated based on the sound field coupling with the front fuselage and the shape of the short wing. Copying a single blade may even have the opposite effect... But now, this can only be regarded as minor repairs based on the existing mature design. Everyone subconsciously feels that it should have been completed in two or three years. ??Although the trend of restructuring the national military standards set off by Chang Haonan has had little impact on the helicopter industry, even if there are no relevant standards, the first flight in the extremely cold climate of minus 30 degrees Celsius is obviously dancing on the coffin board of aviation safety regulations. ?Furthermore, the operational feedback presented by the helicopter at low temperatures is also very different from normal conditions. The prototype is a dolphin sold almost all over the world by the French. You can get up close and personal with it for hundreds or thousands of francs in Europe. This temperature is a test for the mechanical parameters of the engine, especially the turboshaft engine, the stability of fuel and oil delivery, and even the pilot himself ??However, Bingcheng Industrial Group is obviously not willing to postpone the first flight to April or May. In the end, Bingcheng Industrial Group worked hard and chartered an An-124 from the Volga-Dnepr Company, including the prototype with the main rotor removed, all related auxiliary equipment that needed to be tested, and the personnel involved in the test flight mission. Pulled in Ho Kyung. Although some key improvements such as the transmission system, engine, and rotor are independent intellectual property rights, you can''t just take a look at them. Even if you are given a measuring tape to measure, you cannot simply copy them away. Especially during take-off and landing where the risk factor is the highest. ?Most people, even those who are involved in aviation, have never seen such a big thing with a take-off weight of 400 tons. ?That is equivalent to wasting three or four months. An extremely large An-124 landed in Haojing, and the noise was naturally not small. After all, as the basic type of Zhi 9WY for export, there is not much need for confidentiality. Such a big plane has come and gone, so we cant go back empty. The cabin of a helicopter is only as airtight as a car, not as good as a fixed wing. It just requires that onlookers be excluded from the airport area to avoid causing any security problems. ??Guo Jingshan and Liu Hongbo dont care. Due to the limitations of objective conditions, it is normal to wait for several months. ?In this case, delaying for several months would be a heinous crime. Fortunately, the flying environment of helicopters is relatively simple after all, so it has not been a big problem over the years. Besides, these days, wall-crawlers fall into a gray category, and even if they catch the current situation, its not easy to deal with them. Not to mention internal units such as the Flight Test Institute or the Haofei Group. At that time, the temperature in Ice City was almost minus 30. Mainly, it only took half an afternoon to assemble and inspect the helicopter, but it took nearly ten hours to refill and secure the An-124 pallet. It came off the production line in mid-January. As a result, the entire test flight process of this aircraft born in Ice City will be completed in a foreign land 2,000 kilometers away. In the past, the development cycle for a major revision model like the Zhi 9WY was basically calculated in units of 10 years. ?After completing the unloading, Guo Jingshan directed half of the people accompanying him to quickly install the rotors on the aircraft in preparation for a test flight, while the other half began to carry various daily necessities into the An-124 cabin. By the time the latter refilled the fuel tank and took off, it was already early the next morning... This plane is really big... ??Although Guo Jingshan is not engaged in fixed-wing, he still knows the size of the aircraft. ? He ??has seen a Boeing 747 with a takeoff weight of about 370 tons before, but the shock it brought was far less obvious than this An-124. What a pity, we cant make new ones now Yi Yuanhe, chief engineer of Institute 603, also stood nearby and said as he watched An 124 gradually climb up and disappear into the horizon. There was a little regret in his tone. ?Liu Hongbo has been involved in the research and development of MA60 for a long time, and he and Yi Yuanhe have met frequently. ?Of course, the former could not even be counted as a formal member of the project team, but could only be counted as the person in charge of Party B of the outsourcing team. ? Its just that now Liu Hongbo, as the representative of the Torch Group or Chang Haonan, has some differences in status. So Yi Yuanhe came specially to meet him. ??Also find a reasonable reason to take a close look at the An-124. ?After the airport returned to its former cleanliness, members of the Ice City team acted quickly to make various technical preparations before the first flight. ?Following Guo Jingshans command over the intercom, Zhi 9WYs main rotor finally started to rotate slowly. Hand test, they have already done it in Ice City. So this time, after confirming that there are no problems with the engine and transmission system, we took off directly! Meanwhile, outside the airport fence. ??Rosie Colombo was wearing a military cotton hat and a coat printed with the aviation industry logo. He put his hands in his sleeves and looked at the helicopter rising not far away. ??As the manager of the International Business Cooperation Department of Finmeccanica Group, he basically flies to Haojing every month. On the one hand, it is to confirm the progress of the MA-60 project, and on the other hand, it is also to see if there are any other opportunities. ?Colombo was able to jump several levels from the subsidiary Agusta to become the second-level department manager of the head office. Firstly, the cooperation with MA60 was relatively successful. Secondly, he acted as a middleman in the cooperation between China and Europe at the beginning of last year. Of course, what played a decisive role was that in the process of the latter incident, by chance, he found a wife who held a key position in the European Aviation Safety Agency (JAA)... If there is someone in the court who is easy to do things, his status will naturally rise with the tide. ?However, his qualifications and connections are very shallow after all, and he urgently needs some close friends to gain a foothold among the company''s senior management. ?Standing next to Colombo was his deputy Daniel Lezzo, who was visiting China for the first time. ?Just like Colombo back then, he was wearing a suit jacket and shivering in the wind. Although Haojing is not as good as the Ice City, it is still unbearable for Italians on the Mediterranean coast. In order to divert attention, he had no choice but to ask the leader next to him: This helicopter is like the French Dolphin? Judging from the layout of the power cabin and the tail rotor, it should be an improved version of the Dolphin. Colombo was once in charge of helicopters, so he naturally had much better judgment than the deputy next to him. Whats more, Eurocopter is still the main competitor of his old club: I was thinking maybe they need a better helicopter? An armed helicopter? ?Lezzo was promoted from the shipbuilding business department. Only short wings can be seen on both sides of the aircraft. I havent thought about this yet AgustaWestlands main products are the 3-ton A109 and the 15-ton EH101, as well as the A129 armed helicopter. But what Colombo needs is not as simple as simply selling a few planes. While the two of them were talking, the helicopter had been hovering steadily in mid-air for a while, and then began to fly levelly. The helicopters first flight is destined not to be too high. At a height of tens of meters, it is enough to fly around the airport. Hence, they quickly passed over the heads of Colombo and the others. Manager, the plane just flew over. ?Lezzo patted the leader who was still bowing his head in thought, and pointed to the sky. "oh" Colombo was still immersed in thinking, but nodded subconsciously. But it soon became apparent that something was not quite right. "ah?" He looked up at the sky. ?As expected, the small helicopter could only see a shadow. Did it just fly over our heads? He turned his head and looked at Leizzo beside him. Yeah, it should be flying around the field, right? The latter just thought that the other party was in a daze and answered casually. Colombo''s eyes suddenly opened wide. As a 4-ton helicopter, the improved model of the Dolphin just now seems to be too quiet... (End of this chapter) Chapter 515 Your partner for a new generation of helicopters Chapter 515: Partners for the new generation of helicopters As a former AgustaWestland technician, Colombo still has an idea of ??the effect of helicopters flying overhead. Helicopters have two noise sources with different characteristics but related to each other. ??Although the high-frequency noise emitted by the turboshaft engine is sharp and harsh, it can be effectively suppressed after the engine compartment undergoes necessary noise reduction and vibration isolation settings. As the source of lift, the propeller blades must be exposed, and their wingtips simultaneously perform high-speed tangential motion and high-frequency vertical vibration in the air, thus producing a "chugging" mid- to low-frequency pulse sound. This is a problem that has not been solved yet. It is also the main factor restricting the expansion of the high-end commercial helicopter market Low-frequency noise attenuates more slowly and is more likely to cause strong discomfort to human ears, which is quite unfriendly to passengers and even surrounding ground personnel. Hence, this is also the direction that the helicopter industry mainly hopes to improve in recent years. ? AgustaWestlands current signature product, the A109 helicopter, is a 3-ton helicopter with very little movement. Especially the mid-low frequency pulse sound that can penetrate the eardrum is much weaker. He knows the low-noise design principle of the MA60, which relies on the phase difference of the sound of the two propellers to cancel it out. For an Italian in Colombo, it is indeed not easy to understand the specific meanings contained in these adjectives. Just a small voice or something secondary. The sound sounds small can only be regarded as an intuitive feeling. He had never seen a helicopter here before. Besides, the helicopter only has one main rotor, so there is no condition to use a similar principle. So, it is likely that some more unique noise reduction technology is used! ?Of course, Colombo will not regard his own ears as a strict basis for judgment. So after thinking for a moment, he immediately turned around, motioned for Leizzo to follow him, and then walked in the direction of Institute 603. ?Thinking of this, he was a little restless. But one of the obvious benefits is that he can go directly to the director of the 603 Research Institute or the chairman of the Haofei Group or other middle- and high-level cadres without making an appointment. As the first Western aviation company to carry out in-depth project-level cooperation with China, Finmeccanica Group has been listed as an "international strategic partner" by the Aviation Industry Corporation of China. The specific situation needs to be understood more specifically before we can know it clearly. The volume perceived by the ear is related to the distance from the sound source, background noise and even environmental conditions. Haofei Group has few restrictions on the activities of its partners, but it does not mean that they can run around in the infield during the test flight. So much so that when he had been immersed in thinking just now, he didn''t even realize that a helicopter was flying directly overhead. But this noise reduction effect is only useful inside the cabin, and the effect outside the cabin is relatively poor. ?In Colombos impression, this research institute located in Haojing is mainly responsible for the research and development of large and medium-sized fixed-wing aircraft. But compared with the helicopter that just flew over, whose prototype is a dolphin, the difference is still quite obvious. More importantly, its sound is relatively soft. Not long after, two Italians came to the office of Zhou Yonghang, director of the 603 Institute. Mr. Colombo? Zhou Yonghang saw the person coming and quickly stood up to greet him. Mr. Zhou, Im sorry to bother you. Colombo took the initiative to shake hands with Zhou Yonghang and behaved quite politely. ??Both of them have strong English accents, but they can understand each other and can communicate directly. ?Nowadays, his status, and even that of his wife Anne Colombo, are highly tied to the aviation industrys cooperation with China, so both parties are definitely deeply bound by interests. ?After a brief exchange of pleasantries, Colombo, who was holding something back, went directly to the topic: I just saw a helicopter being tested at the flight test base. Is that also a product of your company? ?Faced with this problem, Zhou Yonghang was stunned for a moment. ?Of course he knew about Bingcheng coming over to test-fly a new helicopter. But in the aviation industry system, how to define the description "your company" is indeed a problem. After organizing his words, he explained: "Our Haojing Aircraft Industry Group currently does not have a helicopter business. That aircraft comes from Bingcheng Aircraft Industry Group, but we are all branches of China Aviation Industry Corporation." Fortunately, Finmeccanica Group''s situation is similar. So although the English on both sides was relatively jerky, Colombo still understood the meaning. It looks like it should be an improved version of the Dolphin? ??Although Colombo has seen it before, he still needs to find some topic transition. Otherwise it would be too blunt. Thats right. ?Zhou Yonghang nodded. Our country introduced the Dolphin helicopter from France in the late 1980s, as well as the supporting Arriel engine technical data and an export license. ?This is not a secret. In fact, this is written in the public information of Ice City Aircraft. ?Its just that few people paid attention to this replica model of French helicopters in the past. Do you still have an export license? Colombo recalled the short wings on both sides of the plane just now, and the sound when it passed over his head. ?He suddenly felt that the French would regret this sooner or later. Yes, we spent a lot of money back then. ?Zhou Yonghang lit a cigarette and replied with a smile. The fuel consumption of the Ahaye engine is quite unsatisfactory Out of professional habit, Colombo almost subconsciously began to diss his competitors. There is no other way. Ten years ago, our helicopter industry was almost in ruins, and the only ones willing to transfer technology to us were the French. Of course Zhou Yonghang could not refute this matter, and Colombo was telling the truth. But we are constantly improving this model, and I believe you have seen it. Colombo finally waited for the opportunity and immediately asked: In this case, could Mr. Zhou help me contact the technician responsible for the development of that helicopter? ?Such a direct request surprised Zhou Yonghang. Logically speaking, since the middle of last year, the two parties based on the MA-60 project have been upgraded from Haofei Group and AgustaWestland to the parent company of both parties. Colombo can naturally contact Bingcheng. ?However, the Aviation Industry Corporation of China is, after all, a state-owned enterprise under the Commission of Science, Technology and Industry for National Defense. In addition to business logic, it often has to deal with first-hand discipline. According to our regulations, comrades who are responsible for the research and development of specific models cannot contact foreign personnel in private. But dont worry, Mr. Colombo, it will definitely be okay to meet, but you have to submit an application to our head office first, so it wont be considered a private contact. Colombo nodded in understanding. He was not in a hurry at this moment. So after asking some things to note about application submission, he took Lezzo and left the office. Boss, are you planning to deepen cooperation with them on the helicopter project? ?After getting in the car, the latter, who was sitting in the driver''s seat, asked while starting the car. "Right now...it''s just a preliminary contact, and I can''t say what I''m going to do in detail yet." Colombo shook his head and did not say too harshly. Of course, he actually had this idea. Finmeccanica Groups activities are diverse. Among them, the one that Colombo is most familiar with and loves the most is naturally the helicopter. ?Furthermore, he is from the Agusta Group after all, and his actual influence on the old unit is always greater. ??More importantly, AgustaWestland Group is currently planning to develop a generation-changing 6-ton medium-sized helicopter. ?Required to exceed existing models on the market in terms of safety, comfort and speed. At present, we are negotiating cooperation with Bell and Westland. But it didnt go well. ?Both sides felt that the performance indicators proposed by Agusta were too high and could not control project risks. ?In this case, if a third reliable partner can be found, it will be a good thing for the company and for Colombo personally. (End of this chapter) Chapter 516 Become an international supplier! Chapter 516 Become an international supplier! ?On the other side, Zhou Yonghang, who had seen off the two people, was not idle either, but immediately made an internal call to his superiors. ?Of course, not everyone can directly contact Ding Gaoheng himself like Chang Haonan. So this call can only be made to the Aviation Industry Corporation level. He quickly reported the relevant situation to the leader in charge of external cooperation. In fact, Zhou Yonghang didnt know much about helicopters, nor did he know much about the model being tested next door. After all, the flight test business is the responsibility of the Flight Test Institute. Institute 603 is currently busy with the final test flight certification tasks of the MA-60 and the improvement work of the JH-7A. ??But this wave in Colombo is a straight shot that anyone with a discerning eye can see. ?Given the previous cooperation between the two parties in the development of MA-60, the Italians may have similar ideas this time. Of course, the other party has a deep foundation in the helicopter field and is already a mature brand with a good reputation, so the specific cooperation methods are definitely different from MA-60. At least the Italian side will not only provide money and be responsible for some insignificant parts. Finmeccanica Group...helicopter business cooperation..." It is estimated that China has quietly developed some key technology in the helicopter field, and this technology happens to be very important to AgustaWestland. He has been the director of the Science and Technology Commission for more than ten years. Naturally, he quickly prepared a plan for this kind of thing: Cooperation in the aviation field can indeed be deepened. Since being responsible for the introduction of the IL-76 last year, the former has almost become the deputy minister responsible for foreign cooperation full-time. Whats more, the two parties adopted a similar approach in their previous cooperation on the MA-60 project. The first is the issue of intellectual property rights. Our countrys technical reserves in the field of helicopters are insufficient. The overall project can be led by the Italian side, but the property rights ratio must reach 50:50, and a domestic production line that meets my countrys corresponding standards must be built. The phone call gave instructions that it was possible to make contact, as expected. ?However, specifically whether cooperation can be achieved and in what manner. ?This matter is not difficult. Except for some details, European standards can be consistent with the standards of most other regions in the world without any adjustments. In addition, how to discuss this matter in detail can be left to Bingcheng Aircraft Industry Group to judge, and it can be reported before the final decision. ?So it didnt take Ding Gaoheng long to understand the key points in the report. However, there are a few requirements to be aware of. Putting the report back on the table, Ding Gaoheng raised his head and looked at Huai Guomo, who was sitting on the sofa next to him and drinking water. ?Haiguo Mo put down his water glass, opened the notebook next to him and started recording. That is not something that can be determined at the level of the Aviation Industry Corporation of China. Even before Colombo returned to his residence and started to submit the application, this matter had been handed over to Ding Gaoheng''s desk by Huai Guomo. The latter did not reply immediately. He was obviously very familiar with Ding Gaoheng''s habits and was waiting for his further explanation. Ding Gaoheng put on his glasses from the table next to him and opened the report. The ink on the paper has not yet completely dried. It can be seen that it was sent here as soon as it was printed. The report submitted to a leader at his level naturally emphasizes conciseness and conciseness, and it is impossible to do the kind of thing where the key content is sandwiched between two inconspicuous tables. It''s just that China took the lead that time, with a property rights ratio of 50:50. After a brief pause, Ding Gaoheng continued: The second is to pay attention to the positioning of cooperation projects and avoid conflicts with existing domestic projects. They should be staggered by at least half a level to avoid wasting R&D resources. Third, we must keep up with supporting projects, especially the power system. I took a look and found that AgustaWestlands helicopters generally use power from General Electric or Pratt & Whitney. "Of course, we are cooperating with a civilian model, and we also have relationships with Italy. There shouldn''t be any big problems in the short term, but we still have to plan ahead and at least ensure that there are available alternative suppliers, preferably domestic ones. The corresponding model, even if the performance is worse than others, is still a retreat. " ? Ding Gaoheng leisurely talked about seven or eight things to note. ?Although there is a lot of content, it is all basic content and there are no strict requirements. Basically...thats it. As for the investment ratio and the details of the project progress, some concessions can be made appropriately. According to my observation, the work habits of most Italians are relatively unorganized, and it may be difficult to align our efficiency. This last half-joking remark made the two of them smile. Director Na Ding, I will convey your opinions to Bingcheng Industrial Group and let them make a specific work plan! Originally, this matter should have ended like this. But about half an hour later, Huai Guomo left and returned again. This is not a common situation. Director Ding, there is feedback from Bingcheng that a considerable part of the technology on the helicopter being tested in Haojing comes from the Torch Group. If we cooperate, we need to confirm their opinions. Torch Ding Gaoheng was immediately stunned: Thats notXiao Changs house ?He originally thought this was a relatively isolated incident, but it ended up going around and around, and finally he got involved with Chang Haonan again. Thats right. Huai Guomo said and put the situation statement in his hand on his desk: Furthermore, this situation is quite special. Torch Group not only provided the software tools used in the research and development process, but also participated in the project development as a supplier that directly provides rotor system solutions. In fact, this matter can be directly handled by Bingcheng and the Torch Group. But Huai Guomo still made a special trip. After all, both Chang Haonan and the cooperation with Italy are now major matters on the agenda within the Commission of Science, Technology and Industry for National Defense. Although Italy''s national strength has generally declined since the end of the Cold War, it is still a developed European country. Moreover, as one of the six founding member states of Europe, it can also serve as a window for exchanges between China and the EU. This point has been proven through the cooperation between the two parties in the Boeing-McDonnell Douglas merger case. Furthermore, it was certified by the Commission of Science, Technology and Industry for National Defense. In fact, this merger and acquisition case has also had a great impact on China, no less than the turmoil it caused in the global aviation industry. Its just that many events are hidden under the water and are not known to the public. Since the MD90 joint production project is in the critical stage of moving from large component assembly to component assembly, anyone can see that the sudden acquisition of MD90 at this time will have a great impact on China''s aviation industry development plan. . However, after the incident, several relevant departments almost sat back and watched the situation unfold, failing to come up with any effective and proactive response measures. The first to respond was the Commission of Science, Technology and Industry for National Defense. ??Moreover, not only did they react, but they also came up with a completely different solution in a very short period of time. ? At the time, this plan to take the initiative, use market advantages to cooperate with the EU, and force the FAA to comply was considered bold and even crazy. Naturally, it has also received a lot of criticism and opposition. It is said that it was passed with a one-vote advantage and narrowly missed. In the following months, public or semi-public questioning of this decision never stopped. ? Most of his views are nothing new. They are just that Boeing and the FAA should not be offended at this time, otherwise it may have an adverse impact on the subsequent MD90 project. It can be said that during that time, Ding Gaoheng was under great pressure to push forward this matter. However, it turns out that China and the EU almost lost the battle in the end. In other words, with the exception of North America, all countries in the world with aviation manufacturing industries have lost money. Boeing''s two conditions of giving up the exclusive supply clause and opening up the right to use patents are global. Even the fact that the aviation industry was able to reach a favorable agreement with Tupolev Company, which was called cooperation but was actually selling out, was indirectly related to this matter. ?After this incident, the status of the entire Science and Technology Commission system jumped up. ?Including Chang Haonans special status within the Commission of Science, Technology and Industry for National Defense, to a large extent also comes from his outstanding performance in this incident ??If this were not the case, even with Du Yishan''s relationship, Ding Gaoheng would not be able to take care of Chang Haonan to the extent that he is now. After thinking for a moment, Ding Gaoheng replied: In terms of organizational relations, Torch Group is, after all, a subsidiary of the Science and Technology Committee. I will call Director Song and Xiao Chang himself later. But dont worry about this, there will definitely be no problem. Its just a matter of going through more procedures and arranging Torch Group as an international supplier. Huai Guomo had already guessed that this would be the result: Then, according to our countrys requirements, international suppliers need qualifications and licenses This should be the responsibility of the Ministry of Foreign Trade and Economic Cooperation, right? ??With the improvement of his departments status, Ding Gaoheng becomes more aggressive when in contact with units of the same level: Thats easy to say, Director Song and I will send a letter to them and ask them to speed up the approval..." In short, Chang Haonan was still struggling with the problem of how to "go global" for the Torch Group, but it was successfully solved without him knowing it at all... (End of this chapter) Chapter 517 Turboprop 7 and Turboshaft 7 Chapter 517 Turboprop 7 and Turboshaft 7 ?Chang Haonan has not followed the entire testing process of Turbofan 9A. He is the chief designer of Turbofan 10 after all, so he only needs to focus on some key testing links involving new technologies. As for the remaining parts, comrades from Haojing will naturally be responsible for handling it. In any case, the Turbofan 9 is, after all, the model of the Haofa Group on paper. To Chang Haonan''s surprise, the other party directly sent a whole team over. ?Of course, this is an internal matter within someone else''s company. He only needs to be responsible for handing over the work. Hello, comrade. Chang Haonan shook hands with the team leader opposite him in a routine manner, then waved his hand and motioned to the staff behind him to put the relevant documents on the table: This is the work plan list, these three are performance comparison reports before and after improvements, these are the work schedules that have been completed so far, these are some minor problems discovered so far, and these..." After a month''s work, the Turbofan 9 test project has actually been almost half completed, so the files on the table have almost piled up into a mountain. Haofa Group should have set up responsible persons for different subsystems. In short, several people on the other side signed together, and it took almost an hour to get everything done. After the handover ceremony. Oh, yes, that is indeed the case. I remember that in the end you reached an agreement with Rolls-Royce and introduced an M250 light engine, right? Ren Bingda ?And if you insist on finding something to say, it will easily have the opposite effect. Seeing that Chang Haonan still remembered him, Ren Bingda was overjoyed and nodded quickly: Yes, its me. Last year, when I was deciding how to cooperate with Rolls-Royce Group, I submitted a report to you through Minister Zhang Zhenhua. When the other party described it like this, Chang Haonan remembered the complete ins and outs. ?Chang Haonan was originally prepared to just deal with it with a few words and then pass. ?However, building relationships also tests ones skills. But just when he was about to leave, the team leader from Haofa came over specifically. After a moment of recollection, he quickly remembered that he seemed to have seen this name in a report a few months ago. "Oh...you are in charge of the business of the Siro Group..." The latter is now a popular figure within the Commission of Science, Technology and Industry for National Defense, and judging from organizational relationships, he is probably also highly regarded by the Science and Technology Commission. Yes, this project has been negotiated now, thanks to your guidance and help. I am looking for you this time to report on this matter... However, this is the first time I have the honor to communicate with you face to face. Chang Haonans flight was scheduled for the next day, and he originally planned to have a meal and then go back to rest. ?The other party took out a business card as he spoke. ?So Chang Haonan slowed down and let the other party catch up, and took the business card and looked at it twice. ?Ren Bingda came to Chang Haonan specifically, and the core purpose was of course to get closer to him. But the name felt a little familiar to him. Mr. Chang, I am the deputy general manager of Haojing Engine Group, Ren Bingda. ? Even now it may be difficult to truly become a confidant, but even if you just let the other person remember your name, it may be useful at some point in the future. ??If you can''t find any topic that interests both parties as a reason, it can only be regarded as saying hello at most. Because of this, Ren Bingda specifically brought the topic to the cooperation with Rolls-Royce. Also specially used the name of reporting. Although there is no organizational affiliation between him and Chang Haonan. As expected, the latter became interested in this: Its settledthat means we are already preparing to digest and absorb related technologies? ?This is almost the question that Ren Bingda wants to hear most.?????The point of flattering others is nothing more than "to do what they like". ?There is no unified standard for this "good", but it must be analyzed based on specific objects. ??Although it was the first time for Ren Bingda to meet Chang Haonan in person, he had already analyzed that the other person liked an efficient way of working. So he quickly replied: We have made some concessions in terms of cost and asked Rolls-Royce to speed up the progress. We are currently debugging the production line and preparing to produce the first batch of engines through assembly with supplied materials. It is expected that this batch of products will be rolled off the production line in March to April, and the localization rate will be increased to 100 within two years "According to regulations, this kind of domestically produced engine must have its own name. After our communication, we reused the two names that had been planned before but had only reached the drawing stage, Turboprop 7 and Turboshaft 7. ?The content of Ren Bingdas report indeed made Chang Haonan quite satisfied. In terms of technical difficulty alone, the M250 is not an aircraft engine model with high manufacturing thresholds. Otherwise, we would not have production lines in more than a dozen countries. Even for China Aviation Industry, which is still in the development stage, if it really concentrates its efforts, it will not be difficult to produce such a lightweight product. Its just that he has limited energy and can only focus on the big and let go of the small on specific projects. ??The cost-efficiency ratio of going to war for such a model is really too low. ?This is why the M250 has no rivals in the same level. Everyone feels that it would be a waste to develop it from scratch. The British are selling production lines everywhere again. In the end, the same model with different names was produced all over the world. In short, achieving nationwide production in two years is by no means a satellite launch even for the Haofa Group, which has poor technical strength. Are there any confirmed users now? Chang Haonan naturally found the basis for this model, which is Guihangs long-endurance UAV that imitates the Predator, and the new junior trainer aircraft that will replace the Chujiao 6 in the future. ?However, it would be great if Haofa Group could find a way out on its own. We have been talking about this aspect, but now only the Hongdu Group has been confirmed, and they will use this model on the improved Agricultural 5 aircraft. Speaking of this, Ren Bingda looked a little worried. In fact, although only one confirmed user has been discussed so far, after his research during this period, he found that many trainer aircraft and training helicopters used by civil aviation schools use this model of power, so there is really no need for it in the market. Worry too much. ??The reason why he said this was just because he knew that this topic had come to an end, and before switching to new conversation content, he needed to leave an introduction for the next contact. This is the same as pursuing a date with a girl. Leave half of the topic, and it will be easy to use it as an excuse to ask out a second time naturally. And it will never be cold. ?Of course Chang Haonan can''t just take over everything and say clearly that I will solve the guarantee problem for you. ??Just nodded and replied in an encouraging tone: As long as there are initiating users, it is a good thing, which means there is no problem with the power-first approach. The potential of the domestic aviation industry has not yet been fully unleashed, and there will definitely be no shortage of market for this kind of light power in the future! (End of this chapter) Chapter 518 One-step main battle tank chassis Chapter 518 Main battle tank chassis in one step The introduction of absorption turboprops 7 and turboshafts 7 is, after all, just a small project with little involvement. The two of them had already finished talking about everything they could before they even reached the door of the building. Ren Bingda also knew that building relationships should not be done too hastily. After a few brief remarks, he was ready to stop there. ?Chang Haonan walked a few steps alone and stood at the intersection, hesitating whether to go back to his residence or to the canteen. At this time, I happened to meet Jiang Fuhe who had also just come out of the building. Mr. Chang has finished his shift and is ready to return to the capital? During the period of testing conducted by 624, the relationship between the two was quite familiar. ?After suffering some blows at the Turbofan 10 design review meeting last year, Jiang Fuhe followed the advice and embarked on the research of vertical take-off and landing engines. Of course, it is still at a very preliminary stage, mainly researching the technology related to large-angle deflection of the nozzle, and demonstrating the feasibility of the two routes of lift fan and lift engine. But fortunately, in a short period of time, you dont have to worry about your research direction being cut off. So what Chang Haonan said is, at least, it is a component test. Since the 624 Institute is the only aero-engine ground testing base in China, the entire research process of all types of aero-engines needs to be dealt with here. He has worked in the 624 Institute for half his life, and has been involved in the research and development of high-altitude platforms with Liu Zhenxiang for the past ten years. He believes that he knows the entire research and development process of aero-engines. But the design review of the Turbofan 10 has only been completed for less than half a year, so why are we starting to discuss the testing process? For an ordinary engine project, shouldnt the design plan be still being finalized at this time? Am I behind the times? Jiang Fuhe fell into self-doubt for a while. Chang Haonan had a hard time making a choice, so he simply followed Jiang Fuhe in the direction of the canteen: We can put aside the matters in Beijing for a while and go to Shengjing first. Now that the necessary test data has been obtained, we need to finalize the compressor design of the turbofan 10 and enter the test process as soon as possible. Now it is nothing more than conveying it through Chang Haonan himself, rather than the administrative liaison officers of both parties. Hence, this type of information on R&D progress and timetables also needs to be exchanged. A lot of this work is even done by second-tier suppliers. Because normally, this process needs to be repeated many times compared to the whole machine test. "Among other things, before I officially took over the Turbofan 10 project, I was already studying some key technologies of the compressor and the theoretical methods of the overall design, so I knew that all subsystems were generally synchronous and parallel. I am personally responsible for development and compressor, so the efficiency will naturally be higher. Jiang Fuhe didn''t know how to continue this completely Versailles speech. Chang Haonan looked at Jiang Fuhe who looked like he had seen a ghost, smiled and comforted: You also know that the pre-research of this model has actually been started for some years, and it certainly cannot be compared with those truly new projects. Whats the situation with Turbofan 10? Its quite special. The tests that require the chief designers personal involvement, except for some special circumstances, will not be the quality and performance tests of small parts But the words came to my lips several times, but in the end I still didnt ask. That is, after each subsystem is designed and manufactured, its own availability needs to be determined before being integrated into the entire aircraft engine. ?However, after Jiang Fuhe heard this, he was so shocked that he even stopped moving: He originally wanted to ask about the specific arrangements for component-level testing. For the chief engineer who is responsible for the research and development of the overall project, how to determine the timetable to achieve the most efficient use of time and resources is a challenging issue. Is this...are we ready to move into the testing process? Mainly Jiang Fuhe is a little worried. In case Chang Haonan expresses that he is confident that the components have been tested once... ?Then it would be completely impossible to talk about it that day. So I had to respond with silence. ?Chang Haonan looked at the other party''s reaction and felt that what he just said didn''t seem to have much comforting effect. But he couldn''t think of any better way, so he had to change the topic: By the way, Mr. Jiang, I heard from Academician Liu before that the institute has started to build a second high-altitude platform for shaft power output engines. How is the progress? Some time ago, several comrades from Jianning Engine Group complained to me that the new turboshaft 8 they developed could only undergo non-standard bench testing at the factory, and then it had to be installed directly. The putting into use of the SB101 high-altitude platform can be regarded as an end to China''s inability to conduct fully autonomous aviation tests in the past few decades. However, a high-altitude platform is definitely not enough for China, which aims to become an aviation power power. On the one hand, each type of engine, even if all tests are completed, requires thousands of working hours and about half a year of bench testing. As long as there are a few more concurrent models, you have to wait in line. On the other hand, the SB101 test bench can only be used to test turbojet and turbofan engines. Engines such as turboprop, turboshaft or piston require completely different test benches because they output shaft power and have different requirements for air intake indicators. The engine test bench is unique to 624 in China. ?Hence, when talking about this topic, Jiang Fuhes awkward expression just now softened a lot: With the previous experience of Platform 1, the progress of Platform 2 is much faster. Currently, there is only one hydraulic dynamometer left that is not in place yet. ?Hydraulic dynamometer is the core structure for measuring shaft work. It uses a hydraulic transmission system to simulate the load and calculates the power output by measuring the flow and pressure changes of the liquid. This thing is not said to be complicated, but the aerospace engine has high output power and fast rotation speed, and it also needs to rotate at high speed in a water environment for a long time, which tests the accuracy, lifespan and sealing performance of some parts. "However, we are already in contact with several suppliers at home and abroad for bidding, and we should be able to put it into trial operation within the year." Chang Haonan was able to think of turning the topic to the new test bed because he had just chatted with Ren Bingda about the M250 The engine thing. ? Even if it is a model with imported technology, the tests that should be done still have to be done. Haofa Group has never developed turbine shafts and turboprops in the past, and does not have the conditions for in-factory testing. ?Hence, when Jiang Fuhe said this, he was relieved: Thats good. Turboshafts and turboprops may not be as important as turbofans in the field of national defense, but they can still play an important role in the national economy, so we should not be too biased. Chang Haonan didnt pay much attention to the supplier issue just mentioned. After all, he is not the chief engineer of the test bench and has no authority to interfere with such details. On the other hand, he also believes that as long as he can ensure that the key core technologies are in his own hands, in order to improve the overall efficiency of the project, there is no problem in choosing imported shelf products as suppliers. The United States superior technological capabilities over the past half century have largely benefited from its ability to integrate the R&D and industrial chains of Europe, Japan, and South Korea without having to do everything personally. Comparatively, in the Soviet Unions economic cooperation system, only East Germany and half of Czechoslovakia could barely provide help, which was really at a disadvantage. ??Relative to the United States, China''s current comprehensive national strength is much worse than that of the Soviet Union at its peak. Moreover, China is in a period of generally relaxed external environment like the 1990s, and it is even less likely to waste resources in some non-core links. At the same time, Beijing, Northern Vehicle Research Institute. ?Just inside the previous small auditorium, a technical seminar on the army''s main battle equipment models was going on. ?With Chang Haonans current management capabilities of LV2 and his control of key technologies, he can completely control the project remotely to a certain extent. Therefore, although he has been in Fucheng for more than a month in the past month, and his main focus is on the turbofan 10 project, the research and development work of the die forging press has not stalled. ?Of course, without the direct leadership of the chief designer, efficiency will still be affected to some extent. ?But even so, for Yan Yongnian and other old comrades who participated in the last die forging press competition, the current progress is very gratifying. For a weapons industry system that focuses on participation and learning, slowing down is even more of a good thing Chang Haonan''s design and calculation ideas are quite unconventional, and it is not easy for people who have not had much contact with him before to follow him. What else In fact, many comrades work on both sides between their unit and the die forging press. This is also easy to understand. ?Under Zhang Yong''s instruction, the technical staff who were transferred to work on projects with Chang Haonan were basically the backbone of each unit and project. For many research institutes, if they completely leave this group of people, their business will collapse directly... ?Chang Haonan is certainly aware of this situation. ??However, it is impossible for him to paralyze even half of the weapons industry system. Secondly, they did give too much... Therefore, it is not surprising that some familiar faces appeared in the seminar, and even the results produced by Chang Haonan were not surprising. On the huge curtain in front of the auditorium is a tank that looks a little out of place. Simply put, the turret is too small compared to the chassis. Mr. Zhu, Mr. Mao, based on our experience during this period, we have re-established the mechanical model of the vehicle chassis. Considering that the research and development of the weapon system is still in progress, we will still use the original model of turret for the time being..." ?The person standing on the stage to introduce was senior engineer Lin Qingsong, who is responsible for the research and development of the chassis of the new third-generation main battle tank. The two people sitting first below are naturally the chief and deputy chief engineers of this model. Seven typical vehicle operating conditions were selected for the stiffness and dynamic balance of key parts of the body and running system. Eight times the impact load, used to simulate the impact of tracked vehicles on track pads on uneven roads when moving at high speeds..." After passing through a convex vertical wall, the vehicle is usually supported by two sets of road wheels in the middle to support the overall structure and is loaded with 4 times the static load After passing through the trench, the first and last set of road wheels of the vehicle contact both ends of the trench through the track shoes and are suspended in the middle. They are also loaded with 4 times the static load..." The artillery fires forward at the maximum pitch angle, focusing on the stiffness and load-bearing capacity of the seat ring position..." The artillery fires to the side at a maximum depression angle of 90㡭 "After calculation, we found that the maximum stress in the above seven working conditions is much smaller than that around the seat ring, especially the yield limit of the front structure of the seat ring, and the seat ring part will be completely blocked by the turret under normal circumstances, and it does not involve protection capability issues. , you can subtract 1.1 tons of mass here..." "The walking part, especially the suspension part, is not strong enough under the condition of eight times the impact load. Long-term high-speed off-road driving may cause fatigue damage and damage the walking mechanism. This part needs to be reinforced. The weight just saved can be considered. Add it here "The engine compartment is only composed of tailor-welded outer panels. Previously, the only way to improve structural stiffness performance was limited to a single path of increasing the thickness of the outer panels, ignoring the structural load-bearing design potential, which can further reduce weight and improve the vehicle''s performance. Weight distribution, optimizing the overall dynamic balance, and leaving room for weight increase for future new turrets..." After re-optimization, the overall weight of the car body has been reduced by 3.74 tons, of which no less than 2.35 tons can be left for enhanced protection on the front of the car body The strength of the traveling mechanism fully meets the requirements of eight times the impact load, the safe cross-country speed can be increased from the past 35-40km to 55-60km, and it meets the stability requirements for firing while traveling at this speed..." Overall, we believe that this optimized site design can fully meet the needs of future new tank upgrades in one step, and it should be transferred to prototype trial production! (End of this chapter) Chapter 520 Singapore Airshow, main exhibition groups Chapter 520 Singapore Airshow, main exhibition groups ?After successfully completing the work handover, Chang Haonan flew back to Shengjing directly with the test data. The next step is to design and optimize the structure of the turbofan 10 compressor. ?The blade separation flow active control technology he developed performed even better than expected on the final three-stage high-pressure compressor of the 9A-02 prototype by about 8-10%. From a research perspective, it is certainly a good thing. When improving the turbofan 9A, Chang Haonan left a margin of about 15% based on numerical calculations based on general engineering experience. But it turned out that there was too much left. After the upgrade, the new version of TORCHMultiphysics has improved the simulation accuracy of general turbine machinery to a higher level. ?However, specifically for the Turbofan 10 project, this means that some previous calculations need to be corrected - Since the inlets of the J-10 and J-11 are calibrated at a high boost capacity, the total boost ratio of the turbofan 10 cannot be too high. ?Chang Haonans previous design point was 25-25.5. Hence, the compressor blade design, especially the active separation control design, needs to be adjusted more conservatively. They have all worked on projects with Chang Haonan from the beginning, so naturally some people quickly recognized Chang Haonan. Fortunately, although this work is troublesome, it is not difficult. Nowadays, with relatively sufficient manpower and computing resources, it should not take too long. ?About a dozen people in suits were lining up nearby, obviously waiting to get on the bus. Even in the history of aviation development development in the world, this is almost a unique problem. The car stopped steadily in the square in front of the main building. Also parked here is a "Shenyang Fei" passenger bus. Just when Chang Haonan was curious, he discovered that there were many familiar people in the crowd. This value can achieve a relatively good balance between the two models of aircraft, as well as between low-speed and high-speed performance. It was the same Jetta King that took Chang Haonan from Taoxian Airport to the 606th Institute. Hello, Mr. Chang! ?In the institute, unless there is a formal occasion or a leader comes to inspect, few people will dress so formally. We all got to know each other when we were working on Turbojet 14 before. This is a rare scene. For a time, the voices of greetings and greetings came one after another. After all, wearing a suit and leather shoes is really uncomfortable. Furthermore, they did not join the Turbofan 10 project, but continued to engage in aeroderivative combustion. Mr. Chang! After all, in most cases, the problem faced by researchers is that the boost ratio is not high enough... There is probably some important activity on the aeroderivative gas turbine side. But if it is 10% higher, the actual boost ratio of the compressor will reach a level of 28, which will inevitably affect the supersonic capabilities of the two aircraft. Since he had been recognized, Chang Haonan asked directly. What important event are you having? Are you all dressed up so formally? Also, why didnt you see Mr. Yan? ?These questions caused a moment of confusion. Mr. Chang, you dont know? After a short silence, one of the relatively young engineers answered: As one of the three major exhibition groups, China Aviation Industry has been invited to participate in the Asia Airshow in Singapore next week, so a large delegation has been sent there, and we are all accompanying technicians. As for Mr. Yan...he definitely cant go abroad casually, and the progress of the aeroderivative gas turbine for power generation is still a bit tight, so he needs to stay and take charge. It is a large backpack that is half the height of a person on the entire shoulder. From a morphological point of view, it should be empty. ?This is not surprising. ?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????It is already very face -to -face for the transportation aircraft to buy the goods directly. ?Of course, a secondary reason is that China does not have domestic transport aircraft large enough to participate in the exhibition. I have been conducting tests in 624 Shangougou during this period, and I really havent heard of it. ?Chang Haonan was a little ashamed that he knew nothing about such big news: Butwhat does this main exhibition group refer to? Isnt it just in time for the financial crisis? It is said that the economic situation in Singapore is not very optimistic, so the area and specifications of the venue this year have been reduced, and there is no way to provide a large enough outdoor exhibition area for all exhibitors. However, the United States, France and us are exceptions, each receiving one-fifth of the total area. So this means...QC130 gas turbine will also be exhibited at the exhibition? Hearing the news, Chang Haonan was quite excited. ? Singapore Asia Airshow is a relatively successful one among the emerging air shows in the post-Cold War period. ?Of course, it is still significantly weaker than those old air shows in Europe. ?However, for China Aviation Industry, which has just begun to enter the world, this stage is not too small. ??More importantly, due to its geographical conditions, the Singapore Airshow will attract more attention from third-world countries such as Southeast Asia. At least in the short term, they will also be Chinas main target customers for arms sales. Originally there was this plan. Another shorter **** said with a somewhat regretful expression: However, a total of two prototypes of QC130 were manufactured, and both were sent to the 708 Institute for technical verification. It was really impossible to take the prototypes to the exhibition, and in the end they became 1:1 plastic models..." This time we mainly worked with representatives from the 410 factory to provide technical support for the J-7F and FTC2000, Guihangs J-9 aircraft. Chang Haonan understood immediately. Both aircraft use turbojet 14B engines. As a model that has only been finalized for a year, for the sake of insurance, it is definitely necessary to bring more technical strength with you just in case. Didnt the J-8C say it was going there? It is naturally impossible for him to forget the first model he actually participated in the research and development after his rebirth. "No, I guess Shengfei has also given up on that export model. It''s almost the 21st century, and I''m afraid not many countries still need an interceptor, even a multi-purpose interceptor." That makes sense. ?Furthermore, even if an interceptor is needed, the MiG-25s in Russia are almost sold at scrap prices, and the price/performance ratio is incredible. ?Chang Haonan originally wanted to ask about the exhibitors this time. ??As a result, before he could ask the question, someone with great interest gave the answer in advance: As far as I know, our main products this time should be the MA-60 passenger aircraft that will soon complete the certification process and start delivery, and the export model of the JH-7, FBC1. The other one is exhibited in the name of a jointly developed model, but it is actually the original Tupolev C808/Tu334. Chang Haonan has naturally been paying attention to the situation in Figure 334. After the two parties signed the contract, Tupolev''s actions were swift. However, Hufei had never had access to Russian technical information before. In addition, although the Tu334 was a regional airliner, it was designed and generated according to the standards of a mainline airliner. Therefore, the speed of digestion and absorption is definitely not as fast as that of Project 11. Now it happens that Russia is not the main exhibition group, so the exhibition area is not enough. Paint Picture 334 with the national flags of the two countries and put it on display in China. It would be a win-win situation. Apart from these three, there may not be much left. The two fighter jets I just mentioned, as well as the helicopters imported from France by Bingcheng, the Chujiao 6 and Qiang 5 produced by Hongdu..." ?The other party counted on his fingers again: "There are not many types, but I heard that the United States will bring the latest F18F carrier-based aircraft that has just made its first flight this time, and France will also display the prototype of the Rafale. In comparison, it seems that our battle is not enough... " Speaking of this, everyone felt a little disappointed. In peacetime, air shows and defense exhibitions are the front line of competition in the aviation industries of various countries. ?Although they all play some tricks, generally speaking, everyone still knows who will win and who will lose. The two latest third-generation fighter jets... Of course, Chang Haonan could not reveal his development plans for the two main models of J-10 and J-11. He could only encourage him with a firm tone: The J-10 was already tested last year. I estimate that our own third-generation aircraft will be officially unveiled in the past few years! (End of this chapter) Chapter 521 Can this also be called a MiG-21 modification? ? ? Chapter 521 Can this also be called a MiG-21 modification? ? ? ? Few people would have thought beforehand that during the preparations for the Singapore Air Show, the most eye-catching model was neither the Rafale nor the Super Hornet, nor the two Chinese passenger aircraft. Rather, they flew more than a dozen sorties in three days, transporting many exhibitor models from all over the world to several An-124s at the Changi Exhibition Site. ?Especially, when a medium-sized helicopter was pulled out of the cargo bay of the An-124, the reporters on the scene spent almost half of the day''s film on this scene. ?This is not over yet. ??The Americans, who felt that this was not going to work anymore, also pulled out a C5, removed the wings of the Black Hawk helicopter that could have flown from the Subic base next door, stuffed it in and airlifted it to Singapore... This is completely an act of vindictiveness. ??Volga-Dnepr''s An-124 charges the cargo owner for each flight, while the C5 costs pure money. ?Of course, the US military, which has a lot of money at this time, doesn''t care about this little funding. ? At this time, it was less than 10 years since the end of the Cold War, and giant transport aircraft such as the An-124 and C5, the dominant ones in the East and the West, rarely met the public directly. In addition, information dissemination is not developed enough, and there are not many people even seen in photos. ?? Guillaume Le Maire, the leader of the French delegation and also the vice president of the French Aerospace Industry Association, finally breathed a sigh of relief when he looked at the journalists around him who looked regretful. ??Who is a serious ordinary person who pays for a fighter jet? ?This made many media who wanted to take photos of the two in the same frame eager to do so on the opening day. The first four days of the Singapore Airshow, including the opening day, are professional days, open only to trade attendees. Had I known this, I shouldnt have chartered the plane from the beginning As a result, the latter quickly discovered that this was an excellent opportunity to advertise for themselves, so they sent a lot of Russians'' own exhibition equipment. Although Southeast Asia and South Asia have been hit by the financial turmoil, at least a skinny camel is bigger than a horse, and it is still better than Latin America and sub-Saharan African countries... ?So to save trouble, they simply hired Volga-Dnepr Airlines, which had a broken freight rate. Following on, the situation got a little out of control. As a result, both the United States and Russia stated that they had only arranged cargo routes according to normal plans and had no plans to participate in the exhibition of these two models. They have high hopes for this air show. Due to the backstabbing behavior of the French during the Gulf War (the Iraqi armys automated command system was imported from France, but failed to function at all during the war), the reputation of French weapons and equipment has plummeted around the world, especially in the Middle East. . ?It takes time to recover word-of-mouth, so they urgently need to expand beyond traditional markets. Fortunately, the limelight of the opening ceremony was not stolen. As soon as the news came out, the French finally breathed a sigh of relief. ??If the attention in the past few days has been drawn to the United States and Russia, the subsequent public open days will not make much sense at all. ?Especially in the past few days, these two models, which are similar in size and purpose, just took turns to land here, but there was no head-on encounter between the needle and the wheat. Coupled with the fact that after the disintegration of the Soviet Union, the CIS countries engaged in indiscriminate dumping at unreasonable low prices, the situation of France''s arms sales in recent years has not been very optimistic. The first few An-124 sorties that came over were actually mostly transporting things to French companies. ??It is definitely a top figure that can attract media attention. ?Like passenger planes, it''s okay, but it''s a bit difficult for fighter jets or helicopters to fly from France to Singapore on their own, not to mention that the Rafale is still a prototype. As the salute sounded at the opening ceremony, the Singapore Air Force A4S attack aircraft and the French Air Force Mirage 2000 fighter jets began a joint flight performance, finally drawing the attention of the media and delegation members from various countries back to the air show itself. ? After confirming that everything was back on track, Le Maire moved his body and began to wander around the exhibition area of ??more than 70,000 square meters. While scouting your competitors, also see if there are any possible deals. ?According to his experience, these third world countries are very casual when buying equipment. ??If the level and authority of the delegation sent are high enough, they may spend money on a whim. ?Although it is generally difficult to get any big orders, no matter how small a grasshopper is, it is still meat. Retailing and wholesale are both businesses, and they are not shabby. ?Perhaps because of the area of ??the exhibition area and the location of the exhibition being far away from the mainland, their two biggest rivals, the United States and Russia, did not bring much eye-catching equipment. ??The Su-30, a multi-purpose fighter that was previously regarded as a huge threat, did not show up. Only a few Su-27s from the Warrior Demonstration Team showed up, and they also left the venue immediately after the performance. As an "air show", the weapons and equipment exhibited by Russia are mainly anti-aircraft missile systems. The latest S300PMU2 is placed opposite the Mirage 2000 booth. Although it seems to have some intention of causing trouble, it does not constitute direct competition with France. ? Americans are still the same. Although the F18F is making its first public appearance, it is a carrier-based aircraft after all. ?Except for a few countries, almost no one will purchase a carrier-based aircraft for use on land... After walking around half a circle, Flamel nodded with satisfaction and put his hands in his pockets, as if he had no opponent. ? Enjoying how lonely it is to be invincible, he slowly walked towards the last area in front of him Huaxia Exhibition Area. At this time, Le Maire''s mentality was already very relaxed. ?It was his own suggestion to arrange Huaxia as one of the three major exhibition groups through behind-the-scenes operations. Mainly to squeeze the participation scale of other major competitors such as Britain and Russia. Judging from the actual results, this strategy is quite successful. Even though China has shown some potential for rapid development in the past two years, the starting point is too low. Even if they are given an exhibition area of ??15,000 square meters, they can only display some uncompetitive things. The cockpit model of the third-generation fighter FC10 Door manufactured for Airbus A320 Horizontal tail manufactured for Airbus A320 Lemel went all the way to watch the flowers, nodded secretly for his wisdom to drive tigers. ??Although this is the Chinese exhibition area, many exhibitors are participating as suppliers, and the most important supplier is Airbus. It is no exaggeration to say that the few tens of meters you first entered could even be regarded as an extension of the French exhibition area. After walking for a short distance, a twin-engine propeller regional airliner made Le Maire''s expression change slightly. MA 60 passenger aircraft. Has proven to be a strong competitor for the ATR42/72 aircraft. ? And since China has signed mutual recognition of airworthiness for regional aircraft with the EU and the United States, there is no way to set up obstacles in terms of procedures. The market for propeller regional aircraft is not big, and ATR didnt come this time, so its okay, okay Flamel comforted himself in this way. He didnt take a closer look at the 100-seat regional airliner called C808 next to it. As most insiders know, this is actually a Tupolev aircraft with a different paint job. Whats more, there is no manufacturer of large regional aircraft of this level in Europe (not even the UK). This should be a problem for Brazilians or Canadians to worry about. As he moved on, Flamel''s mood improved again. FBC1, a fighter-bomber similar to Tornado, has too single function and poses no threat in the field of arms sales F7MGis the Chinese F7, which is an improved version of the Soviet-made MiG-21too backward and not a threat F7F...is another improved version of MiG-21? He looked up at the fighter jet with its chin inlet in front of him and felt that the world was a little crazy. Of course, it does not pose a threat to the Mirage 2000. Not to mention the gusts. FTC2000 ? Flamel frowned and looked over and over several times at the display panel in front of him and the plane behind it. ???Recalled the MiG-21 in my impression. ?At this time, he really wanted to capture a Chinese colleague and torture him for questioning - Can you also call this an improved version of the MiG-21? (End of this chapter) Chapter 523 Better than blue Chapter 523: Outperforming others Awkward. Extremely embarrassed. ?For a moment, Flamel felt that although he was still alive, he was already dead. If possible, he would very much like to retract all the statements he just made. ?This helicopter is obviously an improvement on the Dolphin, but there is no corresponding model from Eurocopter. ? France has indeed considered designing an armed version of the Dolphin, which is the AS365M. ?The French army itself of course has larger Lynx MK4 armed helicopters and Tiger armed helicopters. But some are still very attractive to small countries with low armed needs, or to paramilitary forces such as the coast guard. After all, AS365 is sold all over the world, and the military or government agencies in more than half of the countries are users of this model. ?Hence, it is easier to get started in aspects such as pilot training and ground maintenance support, and there is no need to build an additional logistics system. The name of the photo is "AS365M Helicopter in Paris". Cuarn also came up, adjusting the angle to include the Chinese helicopter and Le Maire, who was standing in front of the exhibition board in the cold wind, into the frame. AS365M was of course not completely abandoned, but it was postponed until the AS365N2 was finalized and continued to develop based on the new model. The models that China had previously introduced together with the helicopters were the Arriel 1C and Arriel 1C1. ?However, Flamel did not pay attention to the situation behind him. ?His eyes quickly scanned the text in front of him and found the content he was most interested in. Hence, Eurocopter only brought the traditional model AS365N1, which has the highest sales volume, to this air show. Basically the data of Ahaye 1D1. The power performance looks quite familiar to Le Maire. result In short, Eurocopter believes that the basic model of Dolphin is not enough to support it in completing such a mission. He actually saw the improved armed version of the Dolphin on the Chinese side in advance? ?The idea was really good, but in the end it was abandoned due to the insufficient size of the whole machine and too many areas that needed to be modified ?Although armed helicopters theoretically do not need to be manned, the additional weapon systems and additional resistance are a huge challenge to the performance of the helicopter. What''s more, a considerable number of tasks actually require a helicopter with both attack and transportation capabilities to complete. This is the Singapore Airshow after all, so all promotional materials are at least bilingual in Chinese and English. For example, the MH6/AH6 and MH60L used by American special forces, as well as the more classic Mi-24. The maximum continuous output power of the engine is 496kW, the maximum take-off power is 535kW, and the maximum emergency power is 575kW ???Le Maire took two deep breaths to calm down, forced himself not to pay attention to Cuarn''s eyes and expression next to him, and strode forward to the helicopter''s promotional board. The functions of an aircraft are often restricted by data such as maximum takeoff weight and available hover time. The usage logic of helicopters is different from that of fixed-wing aircraft. Values ??such as flight speed and ceiling are not very important in most cases. However, when there is a basic model, everyones improvement ideas are basically the same, so it is normal to finally come up with improved models with similar indicators... Unconsciously, Le Maires understanding of the level of Chinas aviation industry has undergone tremendous changes. It seems that it is not that surprising to independently come up with an improved version of the turboshaft engine... ?However, as a former senior executive of Eurocopter, Le Maire is very clear that the problem of the Dolphin helicopter cannot be solved by replacing it with a more powerful engine - ??If it were that simple, several planned new models would have already been developed. ?Looking past a few less core performance data, continue downwards. The maximum available power of the rotor is 452kw*2 The maximum takeoff power duration is 5 minutes Flamels heart trembled violently. Just like there is a gap between the wheel end power of a car and the output power of the engine, as an aircraft that mainly relies on shaft power, the power output to the rotor end of a helicopter cannot be the simple sum of the power of two turboshaft engines. The most criticized aspect of the AS365 helicopter is that the transmission system design limits the power output. The maximum take-off power of the Arriel 1C engine is about 470kW, but due to the limitations of the transmission system, the power output to the rotor end is only 390kW*2. If you rashly replace an engine with a higher output power, the available power of the rotor will decrease due to a mismatch in the transmission system. This is also the main reason why AS365M was shelved that year. ?Now, since the Chinese people have written all these details clearly on the display board, it is obvious that they are not hastily adding two new engines. Rather, at least the transmission mechanism of the main reducer has been redesigned. Otherwise, there would be no special emphasis on the maximum available power of the rotor. ?This thing is usually in the technical manual, together with the power output envelope. It is data that only insiders will pay attention to. In most countries, especially small countries, the people responsible for equipment procurement are not expert... But how is this possible? ? Flamel couldn''t help but doubt life. ?Changing the MiG-21 into something that others dont recognize is surprising, but its also reasonable. After all, China has obtained some technical data of the MiG-21 since the 1960s, and has always been inextricably linked with the MiG Design Bureau before and since. Furthermore, the reason why the Soviets did not modify the MiG-21 was not because it could not be modified, but because it was not necessary. The first prototype of the MiG-25 was a large MiG-21... But the Dolphin helicopter is another story. ??The French dont modify dolphins, not because they dont want to, but because they really cant do it With his mind in a state of confusion, Flamel didn''t even notice that after the rainproof cloth was removed, the helicopter was slowly pushed backwards by several people. ?It wasnt until reporter Caron walked to the side that he noticed that the helicopter in front of him, called HC (Helicopter-China) 9WY, was already preparing to take off on the designated apron a little further away. ?Cuarn raised the camera in his hand and pressed the shutter, while Flamel continued to look down at the exhibition board. ?At the same time, you are mentally prepared to endure the violent airflow and loud noise when the helicopter takes off. ?However, the shutter sound kept ringing in my ears and was not covered up by the noise of the helicopter. Sound, of course there is. But generally softer. There is only a high-frequency stable buzzing sound, which is relatively friendly to the eardrums. Why havent they taken off yet? Is there something wrong? ?The moment before he raised his head, a dark corner of Le Maire''s heart even began to expect that this helicopter would make a fool of himself at the air show. However, the next second. He saw that the helicopter had not only taken off, but was even hovering in mid-air, nodding in his direction. ??? Of course, Le Maire knew that this was just a routine greeting before the helicopter flight performance. But under this situation It feels like a provocation no matter what. The more I think about it, the angrier I get. Chairman Le Maire, I have a question. Caron looked at the helicopter that had begun to move rapidly in the sky, and suddenly said: They put this model at the air show, obviously preparing to export it. So, in the contract we signed back then, did we authorize them along with the export license? (End of this chapter) Chapter 524 You cant ask the Chinese for help, right? Chapter 524 You cant ask the Chinese for help, right? This question, for Flamel, is completely a proposition. ?Especially, he had just boasted in front of Caron about his handling of the helicopter business with China. Can''t even push it away. ? Flamel suddenly remembered a British drama he had watched. ?In one of the episodes, one of the three protagonists was suddenly uncovered from an old account that caused a loss of millions of pounds 30 years ago. That time and that moment, exactly this moment. ?Of course, when we signed the contract with China more than ten years ago, it was not really a mistake. At most it is an oversight. On the one hand, the other party was swinging between Bell Helicopter and Eurocopter. If they could not show some sincerity, the entire order might fly away. On the other hand, the Chinese people did give too much... Only take the initiative. ?So now more than half of the diesel-powered ships in China are powered by French origin. This is normal business logic. ??Moreover, even if the production license is transferred, the other party will still need to import a large number of assembly parts from France, and the flow will continue to flow smoothly in the future. Forget it. ?Now, people are coming over with improved models to cause trouble? ? Flamel opened his mouth several times in succession, but he really didnt know how to answer this question. ??Pilstick Company has also made a lot of money by exporting key components such as sequential supercharging equipment. Mr. Le Maire, you dont want the fact that you were responsible for the helicopter cooperation with China to damage the interests of the French aviation industry today to be known to the public, right? Perstic diesel engines exported to China around the same period also had this idea. In short, from the perspective of the mid-1980s, there was no reason to turn away such a huge order. Export license was just negotiated along with the production license at that time. He knew that no matter whether he explained or denied, he would inevitably fall into the trap that the other party had already prepared. ? ? China first stopped importing original transmission systems and main rotors, then stopped importing core engine components, and then stopped even the introduction of technology for the Arriel 1D1 model. ?Even if China is really just doing that one-off deal, it is still better than pushing customers to its competitor Bell. There are silent words in the expression Caron turned his head and looked at Flamel beside him. Fortunately, Le Maire is experienced in this area. Why is the plot completely different when it comes to the helicopter? He believes that no matter what he says, after being processed by reporters, it will become content that he absolutely does not want to see published in newspapers. The idea at the time was to capture market share first and then make money through subsequent related services provided. If the problem cannot be solved, solve the person who raised the problem. After a brief hesitation, he walked next to the other party and whispered: Our public relations department at the Aerospace Industry Association currently lacks an official partner with an objective stance. I wonder if Mr. Caron is interested For journalists like Caron who specialize in a certain industry, this is an offer that is absolutely irresistible. It is equivalent to him having at least a semi-official status in the entire French aviation industry. ??As long as you apply for an interview, others will give you a somewhat less favorable reception. ?Sure enough, after hearing these words, Caron decisively gave up and continued to ask questions. After all, it happened more than ten years ago, and its news value is limited. We should still look further forward... He directly helped Flamel find a way out. When the latter heard this sentence, he knew that the matter should be over. ?However, the expression on his face did not soften. After all, the threat posed by this Chinese model is real. Even if Cuarn no longer reports on the relationship between Le Maire and the previous order, such an incident will definitely affect the market reputation of Eurocopter Group - ?The helicopter transmission system you developed has a defect. As a result, the defect was discovered by others. Even the improvement plan was developed by others first. Is it possible? ??While the two people here were reaching a secret deal, the helicopter in the distance had also completed a dazzling flight maneuver and began to fly around the field on a routine basis. ?After confirming that Caron''s trouble had been solved, Flamel quickly left the Chinese exhibition area that made his blood pressure rise. The French exhibition area was right next door, so it took him little effort to find the representative sent by the Eurocopter Group among the crowd. Kurt Jean Pierre. ??The descendant of the nobles of the old Parisian flag, of course, he was also an old colleague of Le Maire when he worked at Eurocopter. ?Unsurprisingly, Pierre also kept looking up at the sky with a dumbfounded expression. After all, it only took ten minutes from the time the Chinese people took off the camouflage on the plane to the start of the flight show. ??And the whole process was right next to the original AS365N1 in the French exhibition area. It is normal to experience some stimulation. Little Kurt. Flamel walked to the side and reached out to pat the other person''s shoulder. ?Pierre and his grandfather had the same first name, Kurt. ?Of course, old Kurt died more than twenty years ago. ?However, friends who grew up together will still use this title in less formal situations. no response. Little Kurt? After shouting again, Pierre was pulled out of his thoughts. Guillaume? ??The relationship between the two people is very good to begin with, and since they are considered "ourselves" in the industry, they naturally don''t need to make twists and turns like they did when facing reporter Cuaron. ?Hence, Flamel gets right to the point: What do you think of this helicopter built by the Chinese? ?Pierre turned around, put his hands behind his back, frowned slightly but did not speak immediately. Obviously, he was very confused at this time. ?After a long time, Pierre shook his head: I cant say. But judging from the performance of this helicopter, I feel that the Chinese people seem to understand the Dolphin helicopter better than me..." "If nothing else, when the flight show just started, it took off and hovered in mid-air, then nodded around. I checked the watch during the whole process, and it lasted about 4 minutes and 15 seconds in total." I have seen this set of actions over a hundred times and am very familiar with the process. Normally it can be completed in less than a minute and a half, so the Chinese people must have done it on purpose to show off the hovering capabilities of this model. ? Flamel nodded, agreeing with the other partys opinion: I just went to see the exhibition board over there. The data above shows that their improved version of the Dolphin can maintain take-off power output for 5 minutes. It is indeed more advantageous than our model. AS365N1 can only maintain a hover of 3 minutes at most under standard mission load. If it is fully loaded, the time will be even shorter. This gap is already quite obvious. Hovering is one of the most important functions of a helicopter. Whether it is lifting and landing transport helicopters, anti-submarine helicopters searching for submarines, or armed helicopters launching most guided weapons, they all need to maintain a hovering state. Three minutes and five minutes are, in many cases, the difference between being able to do it and not being able to do it. Of course, this is secondary. ?Pierre waved his hand and continued: Whats more noteworthy is that even when I just took off and climbed at maximum power, the sound I heard here was not too obvious. In terms of absolute volume, it may not be much lower, but the sound characteristics are completely different from most helicopters. It is the kind of mid-to-high-frequency continuous noise that attenuates quickly and is less likely to cause peoples attention and discomfort. Until this moment, Flamel recalled that he had the same feeling just now ?When he looked down at the display board, he even thought that the helicopter had failed to take off. Hiss So the trouble is indeed not small ?Plenty of power, stronger functions and lower noise. And the price is likely to be lower. Operation and maintenance habits are still the same as those of dolphins. It is estimated that pilots may not need to be retrained. ??This is not leaving any way to survive, right? ?However, Pierre next to him shook his head again: It cant be said to be troublesome at all. "What''s the meaning?" Flamel looked confused. First of all, the problem of the Dolphin transmission system must be solved sooner or later, and it cannot be delayed forever. The release of this model from the Chinese people at least shows that there is a feasible upgrade plan without the need to tear down the entire design and start over. ?Pierre raised his head again and looked at the Chinese helicopter that had completed its performance and was preparing to land. ?At this distance, two people dont even need to speak too loudly to cover up the noise from the rotors. Secondly, I must admit that their rotor noise reduction technology is definitely at the forefront of the world. I have never seen a helicopter that suppresses pulse sound so well. "if" Speaking of this, Pierre hesitated: If our latest NH90 can achieve this level, it will probably occupy an important position in the 10-ton helicopter market... The first prototype of the NH90 made its first flight in 1995, but it is still in the test flight process. The main reason is that several startup users have different preferences for helicopter performance. Like all other multinational cooperation projects, there are many dreams and long nights. If it is delayed for a few more years, this model will probably become obsolete. So Eurocopter, which is leading the entire project, is in a hurry now. How does NH90 achieve this level? Flamel looked at his friend with shock in his eyes: You cant ask the Chinese for help, right? (End of this chapter) Chapter 525 Nh90 helicopter, looking east Chapter 525 Nh90 helicopter, looking to the east "actually" ?Pierre reached out and rubbed his chin, hesitated for a while and then continued: I think theres nothing wrong with it. Flamel slowly turned his head and looked at the other party with a ghostly expression: Do you really know that it is the NH90 project? "certainly." Because the helicopter 9WY had landed on the tarmac again, the two men''s eyes returned from the sky to the ground. ?Pierre nodded as he walked forward. NH90, NATO Helicopter90, NATO utility helicopter. Quickly step forward to follow the other party, Lemolt, bite the stress on NATO: In order to promote their automatic carbon fiber laying machine, the Dutch require the aircraft body to use a large amount of one-time thermoformed carbon fiber material, claiming that it can reduce weight. There are also the Italians who require helicopters to use the T700-T7E engine, saying it is because of better performance and higher power output, but in fact it is only because the Fiat Group is involved in the development and production of this model. I know that you are now the vice president of the French Aerospace Industry Association, and you have a lot more things to consider than when you were in the company. The airplane will not care how noble your ideals of uniting Europe are, nor how much effort you put into bridging the differences between you. It will only work accurately, precisely, and rigidly in accordance with physical principles. Although there are plans for a civilian model of the NH90, the development project itself is still a military model, and the final funding was provided by the Ministry of Defense of several NATO countries. And my friend, politics cannot change physics. ??Some fierce words made Flamel fall into silence. American engines are even calibrated in imperial units. It is impossible for us to design a transmission system that is perfectly compatible with both RTM322 and T700 engines. We can only make sacrifices in transmission efficiency. And the Germans "The NH90 project started 13 years ago. Soon the British withdrew from the project without any surprise, then the Germans, and then the Germans rejoined. Now every country has its own NH90 in the project. And I watched with my own eyes as the design became fragmented through compromise after compromise. Are you going to cooperate with the Chinese to produce helicopters for the NATO system? However, the use of large-area carbon fiber is not mature at all. It will not only reduce the structural strength of the aircraft, but also cause the structural parts of the aircraft body to be unable to be repaired or replaced. Once damaged, it will lead to the overall scrapping. ?Perhaps seeing his wavering, Pierre continued: At that time, the American Black Hawk and the Russian Hippo will only need to replace a piece of skin to be repaired, but the NH90 will need to replace the entire body made of carbon fiber? This does not meet the requirements of the use environment at all. ?He turned around and stared at his childhood friend: NATO helicopters...that sounds nice. Collaborating with China on such a project is simply fanciful in the eyes of Le Maire. Of course it doesnt matter for passenger aircraft, but what we are designing is a helicopter. Even if it is a civilian helicopter, it is impossible to avoid damage during low-altitude missions, let alone a military helicopter? ? Le Maire mentioned the cooperative nature of the NH90 helicopter, which made the originally calm Pierre very angry: But Guillaume, you must know that the aviation manufacturing industry ultimately relies on technology to speak for itself. ?Pierre spent the next ten minutes criticizing each of these "allies" for the troubles they have brought to the NH90 project. Finally, he summarized the current status of the project: If we continue like this, I can certainly build the NH90, but Im afraid it wont meet the requirements of any country, let alone challenge the status of the Black Hawk helicopter. I have no problem with international cooperation, but we need truly meaningful cooperation that can improve the level of the project, rather than inviting a bunch of **** who keep wrangling for their own interests to delay R&D progress. Then if its your wish, what are you going to do? This time, Le Maire did not directly refute, but first asked the other partys opinion - As an administrator who came from a technical position, he is more rational than most of his peers. What Pierre just said is certainly reasonable. Otherwise, a not-so-complex 10-ton helicopter project like the NH90 would not have been delayed for nearly 15 years. You must know that the "90" in its name refers to the 1990s. ??However, its almost the turn of the millennium, and the test flight process is not even halfway through, and there are still many problems that need to be reworked. ?However, perhaps because he was afraid that the other party would say something shocking, he then added: It was agreed in advance that it would be politically feasible to completely abandon allies and engage in independent research and development. I said, I have no problem with international cooperation. OPierre''s expression also softened a lot: But we must follow the Airbus model. Countries can have equal status in cooperation, but in terms of technology, especially the overall design of the aircraft, a subject must be established. "Those other countries that are willing to participate can provide technology that meets the overall design requirements. We will also select suppliers that meet the requirements from the partner countries and will not let them work in vain. Those who are unwilling to participate can also simply contribute money. At that time, the profits will be distributed according to proportion, or some production links will be completed in their country. " "But if you are unwilling to do these things, then get out of the project. It is better than dragging it out until the end and creating a flashy waste. We French people will not be able to live without leaving NATO. Besides, there will always be people who will choose to stay. " He expressed the thoughts that had been in his mind for a long time. What about the Chinese people? ???Le Maire asked: It is definitely impossible for the Chinese to carry out military cooperation with us within the cooperation framework of NATO. How are you going to get them involved? Obviously, he had begun to seriously consider the plan proposed by Pierre. If nothing else, "making helicopters quieter" is undoubtedly very attractive. ?Compared to the Black Hawk, the current disadvantages of the NH90 are that it is not compact enough, has poor maintainability, and has a smaller door area on the side, which limits the range of the door machine gun. The advantage is that the cabin is larger and there is a tailgate that can carry large cargo. The maintenance problem can be solved by replacing carbon fiber with high-performance lithium aluminum alloy, but even so, each can only be regarded as having its own advantages and disadvantages. ?In this case, if you can add a "quiet" king bomb, it will undoubtedly be a sure win. Facing this question from his friend, Pierre was already prepared: I studied the agreement that the European Aviation Agency and Airbus reached with China last year, and found that they like the technology for technology type of cooperation. Of course, NH90 is a military project after all, and it is not convenient to engage in in-depth cooperation like aviation meteorological safety issues, but it can be reduced in scale. For example, let them provide a complete noise reduction solution for NH90. In exchange, we can also provide them with technical assistance on a peer-to-peer project and solve problems on a case-by-case basis without teaching each other methods. In this way, only one joint venture company is needed to complete the entire process. After the cooperation is over, the companies break up, and God will not find any traces. Flamel finally saw that the other party was prepared. ?Not only the method, but also how to deal with the funeral has been planned. ??It is definitely not a plan that can be thought of on the spur of the moment. ?However, after a few minutes of hesitation, he slowly spoke: As for the way to cooperate with other allies, I need to go back and discuss it with my colleagues at the Aerospace Industry Association and the Ministry of National Defense. I cant guarantee you the specific results for the time being. But for China to provide noise reduction solutions for NH90, you can start preparations after you return. Ill convince those old diehards. (End of this chapter) Chapter 526 Layout in the field of industrial control Chapter 526: Laying out the Industrial Control Field ?What happened at the Singapore Airshow has not yet had any impact on Chang Haonan, who is in Shengjing. ?In the next more than half a month, he was completing, refining and revising the high-pressure compressor design of Turbofan 10 based on the test data of Turbofan 9A. Because the goal is to lower the overall boost ratio of the compressor, this certainly does not pose any difficulty for Chang Haonan, who has almost mastered the overall design plan. In addition to ensuring supersonic performance, lowering the stage pressure ratio also brings another layer of benefits. ??The bearing and gear samples provided by Fuzhou Bearing Group have a longer life than expected. Reducing the ultimate working intensity of the compressor will also help improve the overall overhaul interval and life of the entire engine. For the Turbofan 10 project, the difficulty still lies in manufacturing. Although the fans and high-pressure compressors of turbofan engines are not considered hot-end components and have relatively low operating temperatures, as long as they are related to aerospace engines, especially those involving aerospace engine core engines, the processing difficulty is not low. In order to reduce the weight of the blade, the fan blade will adopt a weakly rigid hollow structure. However, the hollow blank often has large errors. In addition, the product has a large twisted profile, and there are two constraints: profile and wall thickness, resulting in production efficiency. It is difficult to improve the yield rate. An excellent chief designer cannot just focus on the things on his desk, but must consider the optimization of the production and manufacturing process in the initial design process. Hence, Chang Haonan spent a considerable part of his time in the 410 Factory. On the contrary, as the number of future EU member states increases, it will be easy for one or two small countries to be controlled and add sand to the EU. ?At that time, Chang Haonan could only come here for a visit, but now it is considered an inspection. "The outer contour inspection uses a three-dimensional coordinate detector. We cannot make this thing with such high accuracy ourselves for the time being. However, in previous cooperation with the European Union, they bypassed the Wassenaar Agreement and exported a batch of functions to us that are not subject to Limited equipment The production efficiency of the superplastic forming process is very high, but because it involves multiple high-pressure and high-temperature cycles, it can easily lead to problems such as large blade deformation, low shape consistency, and uneven processing margins. However, when using the back-end Abrasive belt grinding can accurately remove excess material and is more efficient than manual grinding..." ?Especially now that the EU is at its peak, decisions made unanimously by several member states are unlikely to be obstructed. European products are indeed expensive. Especially for hollow turbine blades, because they are hollow inside, there is also the issue of wall thickness detection. ?The Wassenaar Agreement is theoretically non-enforceable. Member states can decide on their own whether to issue export licenses for sensitive products and technologies. It is actually not difficult to circumvent it. Hand-manual grinding can rely on the experience and intuition of masters, but if you switch to automated equipment, you must have a way to accurately measure the blade profile before grinding, and then compare it with the processing target to determine the grinding process indicators. "Mr. Chang, we have recently upgraded a batch of equipment. The front-end manufacturing process uses superplastic forming and diffusion connection, and the back-end process uses CNC milling and abrasive belt polishing. Under the current technical conditions in my country, we have achieved great results in terms of processing efficiency and The balance point found between processing accuracy. Although the internal conditions of the blades will not affect the performance of the compressor itself, if the actual mass distribution of the blades is very different from the original design, it will affect the dynamic balance of the blades and thus affect the service life. Chang Haonan must determine the processing capabilities of the 410 factory in order to determine the design style of the internal hollow cavity and truss structure. ?However, the only disadvantage of expensive things is that they are expensive. ?Zhong Shihong followed Chang Haonan and introduced to Chang Haonan while walking past the production equipment being debugged. Abrasive belt automatic grinding...how do you do blade profile inspection? As for money Fortunately, Factory 410 is indeed not short of money these days... As for wall thickness detection, we use technology developed by ourselves. Speaking of this, Zhong Shihong turned around and pointed at the two devices placed not far away: There is an engineer in our factory who has been studying the repair and remanufacturing technology of damaged blades for many years. Although the specific method of repair has not yet been understood, he has developed a wall thickness detector based on ultrasonic principles based on CNC machine tools, just like Its like the CT used in the hospital..." Chang Haonan had a vague impression after hearing what the other party said. ??More than a year ago, when he first came to the 410 Factory to inspect the production of the turbojet 14, Zhong Shihong mentioned such a thing. But firstly, Chang Haonans attention was entirely on the turbojet 14, and there was really no extra energy. Secondly, the core of the damage repair and remanufacturing technology is actually additive manufacturing, that is, 3D printing. In the late 1990s, Basic research on the background didn''t yield anything, so I didn''t get involved at the time. Unexpectedly, the flowers inside the wall will bloom outside the wall. Although the original research content did not achieve much results, it has gained a lot in other aspects. ?Of course, in fact, quite a few technological breakthroughs come from this. According to the standard reporting process to superiors, after the achievements have been discussed, the next step is to discuss the difficulties: The main problem we are currently facing is that it is difficult to accurately estimate the material removal rate of abrasive belt grinding, which results in unstable abrasive belt grinding efficiency. We can only carry out segmented grinding, and then inspect it after each segment is completed. " Hard grinding This is a research direction at the microscopic molecular level. It is indeed not what I am good at now ?Chang Haonan thought about it for a while and found that this was indeed his knowledge blind spot. ??Although everything remains true to its roots, at least we have to go back and learn some knowledge of molecular microdynamics. Molecular weight ?This time Zhong Shihong was stunned: Mr. Chang, we are engaged in mechanical processing, so there is no need to pursue an accuracy of one or two molecules... ?Chang Haonan was stunned for a moment, and then realized that the other party had misunderstood what he meant. Studying molecular dynamics is not to improve the accuracy to the molecular level. That is of course impossible..." "Theoretically, the total volume of local effective abrasive cutting can be derived by combining the material removal volume of a single abrasive particle. Then assuming that the total abrasive particle removal volume is equal to the material loss of the rail surface cuboid micro-element, any grinding path can be established. Grinding depth model ?Zhong Shihongs eyes gradually became clear and transparent. "In short, the purpose of studying the micro is to guide the process technology in the macro sense. Due to random and irregular motion at the molecular level, the calculation accuracy will be very poor, but at the macro level, due to the principle of large numbers, the impact of this irregularity can be ignored. Excluding" Chang Haonan summed it up directly. ?In fact, Zhong Shihong still didn''t understand, but he was quite self-aware and knew that even if he continued to ask questions, he would only become more confused, so he just nodded. Anyway, he is responsible for managing production and manufacturing, so he does not have to understand the specific technical details. Those who kill fish do not necessarily need to be able to forge knives. "I will return to the capital in about two days. I will try my best to prioritize this issue at that time. It is best to integrate it into the industrial control system so that the grinding process only needs to be set once or twice to complete it. Chang Haonan actually didn''t have this idea at first, but halfway through the sentence, he suddenly remembered Wei Yongming, who he had met several times before. Based on time, the other party should be graduating from graduate school soon, and he can be recruited into the Torch Group by then. ?Although Chang Haonans plan for the company is to focus on light assets and intellectual assets, and follow the route of technical cooperation and intellectual property accumulation, it is impossible to just focus on the product TORCH Multiphysics. It is necessary to expand the scope of business. Industrial control software and industrial control computers are obviously a good breakthrough point. ? He ??was reborn a little late, and I am not an expert in the field of electronic technology. It is a little late to start seizing the desktop market. However, the industrial field has not yet formed a strong monopoly relationship like that of later generations, so there is great potential for it. (End of this chapter) Chapter 527 Im going to receive the award again. Chapter 527: Going to receive the award again According to the original plan, Chang Haonans inspection at Factory 410 should last two days. After all, in addition to the turbofan 10, this place is also responsible for the production of many other models. Turbojet 14 is currently the absolute main force in generating income. Considering that a considerable number of new aircraft such as the J-8C and export aircraft such as the J-7F are using this model, the strong demand for the turbojet 14 is likely to continue for 10-15 years. So Liming Group simply transferred all production related to the turbojet 13 to Guifa Group, which had provided counterpart support at the time, and converted its two main manufacturing workshops to produce the turbojet 14. As for the Turbofan 10, since the new generation of engines has higher requirements for production technology, and Liming Group is not short of money at the moment, they directly allocated a piece of land and prepared to build a more centralized modern workshop dedicated to to produce this brand new model. In addition to its main products, many gas turbines and compressors and other impeller machinery in the aviation industry are also produced in the 410 factory. ?Of course, these are definitely not qualified to occupy the main workshops, or even enter the main factory area. Many of them are completed in separate factories nearby. Chang Haonans trip on the second day was originally supposed to be to such a subsidiary company specializing in the production of special gases. According to the previous deal with Russia, all the ion plating equipment delivered by the other party will be in place. ? During this period, he first kept an eye on the testing progress of the turbofan 9A at the 624 Institute. After returning to Shengjing, he directly devoted himself to the technical research and development of the turbofan 10. This special gas company can produce the protective gas needed in the coating process. In short, early the next morning, Chang Haonan took a Challenger business jet directly from Beiling Airport back to the capital, and then rushed to the Science and Technology Commission without stopping. In the past, there was no way to set the temperature lower. If it was possible, who wouldnt want to set it higher... Then he was quickly invited to the dormitory of the Science and Technology Committee, where he freshened up a little and changed his clothes. ??I woke up very early this morning, and it took several hours by plane and car to get to the Science and Technology Commission. Finally, he saw Zhu Yadan next to him and confirmed his identity. As for the inspection of the special gas plant, there is no rush. In short, when Secretary Lan saw Chang Haonan at the gate, he almost didn''t recognize him. ?However, the content of technology exchange is limited to equipment and related technologies, and the problem of raw materials still has to be solved by oneself. The director of the Science and Technology Commission spoke directly and called people back directly. That must be a big deal. This is a complete surprise for Chang Haonan, because if a layer of titanium nitride coating with high adhesion can be added to the inner surface of the turbine and combustion chamber, the temperature in front of the turbine can even be further increased to achieve a truly "quasi-four" generation level. ??This time, he was not asked to find a nearby confidential hotline to call back. Its just that the plan cannot keep up with the changes. The plane has been arranged. Chang Haonan had just left the production workshop and before he had time to have dinner, a call came to his mobile phone. ? I have been at work for more than two months. I can control the situation at Torch Group remotely through the phone at most every day. Naturally, my image is a bit rough. Fortunately, the design optimization of the compressor has basically come to an end, and it is not a big problem for Chang Haonan to leave now. is Ding Gaoheng. Finally returned to human form. He was directly asked to return to the capital the next morning. Chang Haonan''s plane landed very early. After a lot of trouble, it was actually only normal working hours at this time, so he and Secretary Lan walked to the office of the Science and Technology Commission. Director Ding is so anxious to call me back this time. Is there another emergency? On the way, Chang Haonan first broke the silence and asked. Ding Gaoheng called his cell phone directly, so he couldn''t even talk about anything involving confidential matters. Although Secretary Lan is not a particularly high-ranking person, he basically knows everything he needs to know because of his special position. But when faced with this question, he was stunned for a moment, and then answered with a smile: It has nothing to do with the emergency. Mr. Chang, you are such a noble person and forget things. It is almost the end of February. I will definitely come back to you to receive the award..." The Science and Technology Award Selection Committee contacted Torch Group before, but they said you were not here After all, Torch Group is a company affiliated with the Science and Technology Committee. Even though it is closely related to the aviation industry system, most of its people do not have corresponding confidentiality rights. Hence, Chang Haonan would not tell them his specific itinerary, and it was normal for him to find it through the company if he could not find it. Science and Technology Award Selection Committee Chang Haonan then remembered that he seemed to have said such a thing last summer. His "Xi soil" flood control equipment played an important role in the entire rescue process. However, the honors established for that flood rescue operation were strictly for those who at least participated in front-line operations. I couldn''t pick one to be awarded to Chang Hao. South. ?Later on, I decided to just forget it and leave it until the Science and Technology Award selection to give a BUFF. Its just that too many things happened in the second half of 1997. If Secretary Lan hadnt reminded him, even Chang Haonan himself would have almost forgotten about it. ?Of course, under normal circumstances, Chang Haonan should almost get a science and technology award, but now with the buff, the level of the award may be higher. At this time in 1998, the supreme national science and technology award had not yet been established, so it was naturally impossible to win it. There are four remaining National Natural Science Awards, National Technological Invention Awards, National Science and Technology Progress Awards and International Science and Technology Cooperation Awards. In principle, there is no distinction between high and low awards, only by field. The two of them walked and chatted, and soon arrived at Ding Gaoheng''s office. The latter was hanging his woolen coat on the hanger at this time, and he had obviously just gone to work. Seeing that Chang Haonan came with Secretary Lan, Ding Gaoheng took out a beautifully framed envelope from his desk drawer: "Secretary Lan should have told you just now that I asked you to come over this time to receive the award. This is an invitation on the spot. It will be in the Great Hall the night after tomorrow. Make good preparations when you go back." Chang Haonan was somewhat relieved when he saw that what the other party brought out was an invitation rather than a certificate of award. In the 1990s, several awards were awarded as low as the fourth prize, and the number was quite large. Therefore, under normal circumstances, the third and fourth prizes were directly announced in a list, and then the certificates were sent to the recipients. The unit is in trouble. Only second prize winners and above will come to the site to receive their prizes. ??And you wont know exactly what award you won until you arrive at the event. In another two years, even the second prize will no longer have this link, and the third prize and below will not even be awarded at all. ?Of course in the Internet age, all awards will be announced in advance. Of course there is still a ceremony, but the suspense cannot be left at that time. Xiao Chang, what kind of award do you think you will receive by then? The selection of this award is handled by the Science and Technology Committee, and there is a special committee, so even Ding Gaoheng doesnt know about it yet. As for Mr. Chang, I think its definitely fine to wait... Secretary Lan next to him poured water for Chang Haonan and Ding Gaoheng respectively, and sat on the sofa next to him. ?? Chang Haonan himself seemed to be bragging about this kind of statement, so Secretary Lan accepted it very appropriately. I also estimate that the first prize is stable. Ding Gaoheng picked up the tea cup and took a sip of water, and then continued: I just dont know which prize will be awarded. Comrade Xiao Changs research fields are so broad, I think except for the International Science and Technology Cooperation Award, the other three seem to be relevant..." (End of this chapter) Chapter 528 Top Versailles, my legend fills the world Chapter 528 Top Versailles, my legend fills the world Receiving an award is nothing new for Chang Haonan. ?However, this is indeed the first time for the National Science and Technology Award to be awarded at this level and level. ?Of course, I have had the opportunity to meet all the leaders of the university before, so I will definitely not be nervous. Just follow Ding Gaoheng''s suggestion and take good care of yourself before going. Mr. Chang, just one button on the suit is enough Shirt cuffs must be 1-2cm longer than suit cuffs "The width of the tie should match the width of the lapel of the suit jacket. At your age, you can choose a slightly less plain one, but the occasion is formal and not too fancy..." ?Chang Haonan feels a little regretful now. ?Although Yang Huimei still had some unfinished ideas, she couldn''t really delay Chang Haonan''s business, so she had to give it up. ??Zhu Yadan glanced at the rearview mirror and replied in a slightly joking tone. ??As a result, Yang Huimei took her to a high-end shopping mall in the city center. It had been more than an hour and she still hadn''t decided on the specific combination. It doesnt matter, its my duty to protect the chief. Chang Haonan, who was sitting in the back seat of the car, was arranging his clothes and said with lingering fear to Zhu Yadan who was driving in front. The size is customized, but the layout and so on are all unified. Comrade Xiao Chang, if our two projects can win awards this year, your contribution is indispensable. Comrade Xiao Chang, good afternoon. Because of such an incident, when Chang Haonan arrived at the Great Hall, there was still more than an hour before the official entrance. Mr. Yang? Unfortunately there is no evidence. The result is that after referring to it, it becomes more of a guest. ??He just felt like a puppet, listening to Yang Huimei giving him dressing lessons and letting the other person make gestures on his body. ?Yang Fenghao, and Yan Zhongcheng. Chang Haonan raised his head. You are attending a national event on behalf of our Torch Group today, so you must not be careless... Mr. Chang, its almost time, we have to leave. ??You shouldnt have told Teacher Yang Huimei about this in the morning, and asked the other person to come over for your reference. are two old acquaintances. ?Chang Haonan really had nothing to do about this situation. ?Originally, he thought that since he didn''t have a choice about the coat, he could just do whatever he wanted with the rest. And Mr. Yan? Yan Zhongcheng couldn''t express much on his face because he was injured, but he could still hear his gratitude to Chang Haonan in his tone. Considering that both the Turbojet 14 and the J-8C were officially finalized in 1997, it is obviously not surprising that these two appear here. Therefore, Chang Haonan was led by the etiquette staff to a side hall next to him to rest temporarily. ?Although the age gap between the three of them is quite large, they can be considered as former colleagues, and they havent seen each other for a while, so naturally they exchanged pleasantries for a while. ?In his last life, Chang Haonan was an ordinary senior engineer. The occasions that required him to attend were unlikely to be important ones. They were mostly transparent and he could just buy a complete set of clothes. After his rebirth, his status has improved, but most of the time he wears work clothes or lab coats, and he really has no idea about matching clothes for formal occasions. Having been trying on clothes all afternoon, he was originally going to sit down and take a good rest, but before his **** could get warm, he heard a familiar voice. Sister Yang, thats almost enough, theres no need to change so much ??Although he is about the same age as Yang Huimei''s son, the two of them have a superior-subordinate relationship and cannot be called Aunt Yang, so they had to give themselves a super senior. ?Chang Haonan only has this one formal suit. ??Although Yang Huimei said so, Chang Haonan suspected that the other party was enjoying the pleasure of shopping by matching her clothes. Huhthanks to you for rescuing me I have to say that Yang Huimei has a good taste, and the outfit she chose is much better than Chang Haonan''s own straight male aesthetic. "yes." After all, there are many people coming from other places, so you must arrive early to reserve some time. ?Of course, such a large-scale ceremony must have taken this situation into consideration and would not let them stand outside. In the past few times when I attended events or received awards, I always wore a suit previously issued by the school. ?Zhu Yadan looked at his watch and rescued Chang Haonan just in time. Yang Fenghao next to him also nodded: When we applied for the project, we both ranked you second among the main achievers. You will see it when the awards are given later. These two can only receive the National Science and Technology Progress Award, and applications for this award are made on a project basis. Although only the first finisher can take the stage when receiving the award, all names will be listed. ?Similar to this, there is the National Natural Science Award, which is also selected based on projects. ?Of course, if you are good enough and can complete a project by yourself, the main person who completes it can also write only one. As long as no one raises objections during the subsequent public notice period, it will be fine. The National Technology Invention Award can only be awarded to individuals. ?For projects like the J-8C or the turbojet 14, the first person to complete the project must be the chief designer. ?Chang Haonan has taken a lot of advantage by being ranked second as a consultant. ??Although this ranking no longer makes much sense to him today. But now that youve got the benefits, you still have to be humble: Its all the result of everyones joint efforts, and I just played a part in it. This is what we as aviation people should do... Just when the topic of the three people shifted from the previous project to the future development of China''s aviation industry, another clear voice sounded from behind Chang Haonan: Permanent worker? You are indeed here too. Chang Haonan knew who it was without even looking back. Because now almost only Xu Yang still calls him Chang Gong. ?Xu Yang, who was wearing a women''s suit, moved lightly and soon came to Chang Haonan''s side. She was not directly involved in the August 3rd Project, so Yang Fenghao and Yan Zhongcheng naturally did not know her. Chang Haonan had no choice but to introduce the two parties to each other. ? Xu Yang is usually taciturn, but that''s just because most people can''t keep up with her thoughts, which makes her too lazy to talk. It''s not really autistic. In terms of communication skills, I''m afraid he''s better than Chang Haonan. ?Hence, a chat between three people quickly turned into a conversation between four people. ?When Xu Yang heard that Chang Haonan was the second person to complete the two projects, he first showed a slightly surprised expression, and then covered his face and chuckled. "actually" Actually, the project I applied for Using Differential Evolution Algorithm to Optimize Water, Thermal Power Systems and Dynamic Environmental Economic Dispatch, the second completer... is also a regular worker..." ?There was a moment of silence. ?Although this lounge is full of small and medium-sized groups of acquaintances chatting, Chang Haonan and Xu Yang are really a bit ridiculously young among the crowd here. And they all have outstanding looks. So the four people really attracted a lot of attention. Just when the atmosphere fell into an awkward silence, an old man of medium height and a somewhat bossy hairstyle walked up to Chang Haonan: Are you...Comrade Chang Haonan? Yes, I am Chang Haonan, may I ask who you are Chang Haonan was very sure that he had never seen the person in front of him, and since the other person first asked about his identity when he came up, it obviously meant that he didn''t know him either. Oh, my name is Li Zhihong, a professor at Bingcheng University of Technology. ?The other party quickly introduced himself. Hearing this name, Chang Haonan still had no impression, but Yan Zhongcheng''s eyes lit up: Professor Li, are you the person in charge of the research project New Principles and New Methods for Digital Precision Machining of High-Performance Complex Surfaces? The new gas turbine project I was recently responsible for used the spiral bevel gear you developed, which improved the service life by more than an order of magnitude Hearing what Yan Zhongcheng said, Chang Haonan had a little impression. ?It seems that there is such a project at Seiko Project, but he has not paid attention to who is the person in charge, so he has no memory of the name Li Zhihong. Hiss...Professor Li. Xu Yang, who was standing next to him, suddenly said: Isnt the second person who completed this project also... a regular employee? Three other pairs of eyes looked at Li Zhihong at the same time. "ah?" Professor Li couldn''t help but feel a little hairy when he was stared at like this. After assessing for a while and making sure that he would not suffer physical retaliation for telling the truth, he spoke with some lack of momentum: Thats not true, Mr. Chang did not directly join our project after all If you write it hastily, the impact may not be very good... This made Chang Haonan finally breathe a sigh of relief. ??If he really had to be the second-place finisher for so many people at once, he would still have a bit of a burden. ?However, Li Zhihong changed the subject: However, after all, our project was funded by the Jinggong Project, and its successful completion was also due to the calculation tools developed by Chang Gong. Therefore, in the acknowledgment section of the project completion report, Mr. Changs name was specifically listed..." '' ?Chang Haonan helplessly held his forehead. By the way, Comrade Xiao Chang was invited this time. What projects and awards did you apply for? After a few people chatted for a while, Yang Fenghao finally asked what he wanted to ask just now. Those who have been invited to the Great Hall will be on stage to receive their awards later. Unless there are special circumstances for the first completer, such as the death of Comrade Feng Kang, the first completer of the "Hamiltonian system''s symplectic geometry algorithm" project at the Academy of Sciences, the second completer will generally not be present. ??So Chang Haonan must have been invited as the first person to complete a certain project. Is this... Chang Haonan lowered his head and thought for a while, and finally shook his head: "I''m not so sure either" How could it be unclear? ?Li Zhihong was quite surprised: Although the unit is generally responsible for applying for these awards, we will definitely notify you of the specific information submitted? Chang Haonan nodded: I have indeed informed you. But there were a lot of projects submitted, and I didnt know which project was evaluated for a while ?Several other people suddenly felt... Dont really want to talk to him. (End of this chapter) Chapter 529 The winning suspense is announced! Chapter 529: The suspense of winning is revealed! In principle, the National Science and Technology Award does not limit the number of projects that the same person can submit for selection as the first completer. Mainly no one is thinking in this direction. Because generally speaking, a project that can win a grand prize of this level, especially one that is invited to the Great Hall to receive the award, that is, a project that has won at least the second prize, cannot be the short, flat, and fast type. Normal people can make one award-winning project in their lifetime, which is basically like smoke rising from their ancestral graves. For the more powerful ones, it often takes a few years before they can participate for the second time. So, there has never been a situation like Chang Haonans before Fortunately, after a few people chatted for a while, time passed quickly, and soon the venue staff came in to inform that they were ready to enter the venue. Finally, the somewhat awkward atmosphere returned to normal. Everyone in the lounge got up when they saw this, walked towards the entrance of the Great Hall outside, and lined up at the door, waiting for the security check Liu Zhenxiang quickly waved his hand: This is your first time to apply for an award, so you may not know anything yet. ?It is reasonable to win the National Science and Technology Progress Award. Hey, Xiao Chang, please dont say that. Some of the most confidential projects will only give out a code name even on site, and the recipient will be designated by the applicant unit instead of the first person who completed the project. Academician Liu is naturally Liu Zhenxiang. ??If something goes wrong, the loss will be huge. But most general-level projects, such as the J-8C and Turbojet 14, will still be written in order to give the winners a sufficient sense of honor and participation. ???This kind of ultra-high-level ceremony, not to mention the high-level leaders who will be present to award the awards, is also the people sitting below. The worst is the Taishan Beidou in the research field. Naturally, we can''t be careless when we get it together. ??Its just that detailed information cannot appear in public reports. As the official start time of the ceremony approached, more and more locals from the capital came to the venue. Whats more, several major projects based on this high-altitude platform were all carried out in 1997. Academician Liu, why do you have to win a special prize this time ???Although in principle the SB101 high-altitude platform was approved and put into use in 1996, it has missed the project application for that year. After all, if this were not the case, there would be very few items in the entire award ceremony that would not be classified at all, and it would just end up being a Riddler Contest, which would lose its original meaning... ?Another point is that random photography is not allowed during the award ceremony. ?His presence here is not surprising at all. This also includes the finalization of aerospace engine testing standards. ?It has been more than two years since Chang Haonan was reborn. Even if he did not deliberately work hard, with his way of working, he has a lot of connections, so naturally he sees many familiar faces. Including reporters reporting on-site, they are carefully selected to ensure they are reliable before entering the venue, and promotional materials must go through multiple rounds of inspections before being published. After all, quite a few of the National Science and Technology Awards are classified projects, and it is not easy to spread them around. The special prizes at all award levels are not permanent awards. They are not selected from the submitted projects every year like the first prize. Instead, only those who meet a series of strict requirements may be selected. Chang Haonan certainly knows that the special prize is not permanent, but he has never studied the awarding rules before. ?The reason why I was just sure that Liu Zhenxiang would win the special prize is because the latter won the 1997 Science and Technology Progress Special Prize in his previous life. ?The high-altitude platform has brought countless more achievements now than in the previous life, and the award level will definitely not drop. So he opened his mouth and asked: Is this just a possibility? Liu Zhenxiang has experienced many battles in this area and naturally knows more than the fledgling Chang Haonan: Well, it still needs to be unanimously agreed by the award committee, and then reported to the Science and Technology Committee and the central leadership. The process is very troublesome. So these awards combined, the special prize has only been given out a few times. Like the Natural Science Award, because our countrys level in the field of natural science is relatively low, there were even exceptions for a few years when even the first prize was vacant because there were really no results that could be put on the table ?These selection details are all public. If Chang Haonan went to the Science and Technology Commission to ask, he would definitely be able to ask. But just like public legal provisions still require lawyers, it would be too troublesome to read this kind of thing by yourself... "I see" Chang Haonan nodded clearly: "But I think the problem shouldn''t be big. After the high-altitude test bed was put into use, it immediately produced a lot of results. The contribution to national defense security and national economic development is obvious to all, not to mention the follow-up work. The No. 2 station under construction provides valuable experience..." Then let me borrow your good words from Xiaochang... Liu Zhenxiang did not deny it again. Apparently, he also had some expectations in his heart: If it can be judged, then your contribution will be indispensable in this award... ?Although Chang Haonan has never directly participated in the research and development of the test bench, the high-altitude test bench is ultimately a tool. The value of a tool often depends to a large extent on the person who uses it... ?Several major achievements of the SB101 high-altitude platform after it was put into useaviation test standards, turbojet 14 engines and turbofan 9 enginesare closely related to Chang Haonan. ?Although there are also slightly modified models such as Turbojet 6D and Turbojet 8M, compared with the previous three, they are obviously not good enough. In this case, Chang Haonan could not say anything else. What''s more, the ceremony has officially begun. At the beginning, there were naturally the routine opening remarks, the playing and singing of the national anthem, and the leaders speech. Fortunately, this conference is expected to have a lot of content. In order to finish it before dinner, these complicated processes were condensed as much as possible, and it soon entered the awards ceremony that everyone was looking forward to. The first one to be awarded is the National Science and Technology Progress Award. There are more than ten or twenty second prizes for each award. If you go up to claim them one by one, it will take a whole day to finish them all. ??And the award-giving leaders will probably die of exhaustion on the stage. Hence, the second prize is announced and put on stage in groups of five. In fact, since the awards are all based on application, and as scientific researchers, everyone has a certain degree of confidence in their research level, so most people can actually guess what award they have won before they come. The suspense is only for a few people. For example, Chang Haonan. In the selection of the National Science and Technology Award, in addition to the technical content of the project itself, the contribution of the results to the country must also be considered. As a result, many projects in the second prize sound a bit similar. For example, the five concentrated in a certain batch are "Selection and application of new early-maturing, high-quality and multi-resistant potato varieties", "Selection and application of new early-maturing, high-quality and high-yielding rice varieties", "Short-stemmed, early-maturing, multi-resistant and high-quality medium-gluten wheat varieties" , New high-yielding, multi-resistant and water-saving wheat varieties In terms of technology, it is basically a reproduction of the same technology on different crops. However, its contribution to increasing agricultural production and ensuring food security is real. In the second prize, Chang Haonans familiar face did not appear. After all, the several projects he participated in are unlikely to be kicked into the second prize category. The number of places for the first prize will be much less. It can only be between 3-5 items at most. The first two people to come to power are, not surprisingly, Yang Fenghao and Yan Zhongcheng. "J-8C Improved Fighter", "Turbojet **** Aviation Engine" Looking at it this way, Lao Yangs position as an academician this year must be stable. For Lao Yan... it may take another two years, but the problem shouldnt be too big..." Liu Zhenxiang analyzed in a low voice next to Chang Haonan. But soon he saw a bright spot in the list of major finishers. ?Chang Haonans name ranks first (the first completer is listed separately), and it appears twice... ?Of course, the names of the people in the second list of 14 turbojets have been partially concealed. But as an insider in the industry, Liu Zhenxiang naturally knew that Chang **** must be Chang Haonan. "Xiao Chang, you have a lot of roles this time..." ?Chang Haonan shook his head. ?Even more... The third first prize is Xu Yangs Water, Thermal Power System and Dynamic Environmental Economic Dispatch Optimization. There are only two main finishers. Herself and Chang Haonan. ?Now, even those who dont know enough about the situation of Turbojet 14 have discovered that the name Chang Haonan appears for the second time. Amid the applause, there were even a few exclamations. On the one hand, its because Xu Yang looks a bit young, and on the other hand There is actually one name that can appear among the main people completing different projects at the same time? Even if he is not the first person to complete the project, it is definitely extremely rare. ?However, the shock of everyone has not ended yet. ?After Xu Yang came off the stage with the certificate and trophy, the information about the next winning project appeared on the huge projection screen. ?The host then stepped forward to announce: Differential evolution algorithm for multi-objective continuous variable optimization. The first person to complete the project, Chang Haonan! Generally speaking, after the curtain call ends, there will be applause in the venue. ?However, this time, the first reaction of most people was to be stunned. So much so that there was a moment of silence on the scene. Because the list of finishers on the screen... looks a bit familiar. ??Its the same two people as in the previous item, but the positions of their names have been switched. In the venue, about half of the people looked at Chang Haonan, who was getting up to take the stage. As for the other half, they looked at Xu Yang, who had just come off the stage and was about to take a seat How are you two playing? (End of this chapter) Chapter 530 They are here to receive the prize, but you are here to purchase goods? Chapter 530: They are here to receive the prize, are you here to purchase goods? It wasn''t until Chang Haonan walked up, shook hands with the host, and walked to the middle of the stage that everyone finally came to their senses. The flood of applause was late, but fortunately it was not absent. After all, there are many experts in the field of industrial control sitting below, and they have no objection to the value of this achievement itself. Chang Haonans improvement of the DE algorithm can almost be said to have brought the field of multi-objective optimization into a new era. In fact, the core technology used in the power grid project that just won the third first prize is the differential evolution algorithm. This kind of algorithmic achievements used to tend to be classified into the Natural Science Award rather than the Science and Technology Progress Award. Logically speaking, if the algorithm itself wins the first prize, then the results achieved by using the algorithm as a tool should generally not be included in the same series of awards at the same level. However, the situation this time is indeed a bit special. ??When two people are singing duet on stage, it is naturally not the turn of others to make any comments... Of course, some people have some thoughts about Chang Haonan''s appearance, which looks even younger than Xu Yang''s just now, and feel that he is a bit too young. The winner of the special prize of the 1997 National Science and Technology Progress Award is the Gas Turbine Research Institute and the large-scale high-altitude simulation test bed of aero-engines! ?Chang Haonan bowed slightly to the audience, and then walked off the stage from the other side with the certificate and trophy. Others at the scene were holding their breath, waiting for the announcement of the special prize. ?However, he did not go out to receive the award immediately. Instead, he shook hands with Chang Haonan, who was sitting next to him and had just put away the trophy and certificate, and patted the latter''s shoulder. ?Liu Zhenxiang went into the mountains and worked hard for more than ten years to build the high-altitude platform. Naturally, his core pursuit cannot be to gain fame and reputation. ??Just now when he gave his acceptance speech, he said that his mentor is Academician Du Yishan. Because he has dealt with too many systems and units, he needs to analyze who should be thanked specifically for this project... But when an honor commensurate with the efforts falls on you, it would be absolutely false to say that you are not excited. After the applause died down, the host spoke again: Dear guests, the list of winners of the National Science and Technology Progress Award is still not over. ?Chang Haonan received the trophy and certificate from the award leader, and then, as usual, he held it up and showed it to the scene. In short, there is no need to cause trouble. When judging awards, in addition to looking at level, qualifications must also be considered. ??The moment he heard his name, Liu Zhenxiang, who was already in his sixties, perked up. He waved his fist forward like a child, then stood up and greeted the crowd at the scene. The acceptance speech stage was not very exciting. ? And now, it is obvious that he has a close relationship with Academician Liu Zhenxiang... "thank you all!" So the speech is not long. ??When he raised the trophy to the audience, the spotlight in front of the stage inadvertently reflected the tears shining in the corners of his eyes... For Liu Zhenxiang, who has been elected as an academician, this award actually has no use in terms of utilitarianism. ?According to the general speech template, after saying thank you, it is natural to express your stance: "This award is not only an affirmation of my past work, but also an incentive for my future work. I will not forget my original intention, redouble my efforts, and continue to work **** the road of scientific research..." Furthermore, considering that in Yang Fenghaos previous project, the second person to complete the project was also Chang Haonan, which obviously shows that this persons network of relationships is intricate. The conference affairs did not set a time limit for Liu Zhenxiangs acceptance speech. Originally, this occasion is not for you to give an academic report. With the approval of the Awards Committee, the International Science and Technology Committee and the relevant leading departments of the State Council, it was decided to award a special prize of the National Science and Technology Progress Award in 1997. As the host finished speaking, Chang Haonan, who had just taken his seat, felt Liu Zhenxiang tremble next to him. He even clenched his fists slightly and glanced towards him unconsciously. The first person to complete the project, Liu Zhenxiang! Furthermore, this is already the fourth first prize. Even if one of them is cancelled, there will be no second prize to replace it. But it couldn''t stop his smiling face. ?Chang Haonan walked slowly behind the podium, pointed at the microphone, and then thought for about two seconds. At this time, Chang Haonan''s status in the circle was even more confirmed. "I would like to thank the National Science and Technology Award Selection Committee for awarding this honor to me. In addition, I would like to thank my alma mater, Beijing University of Aeronautics and Astronautics, and my mentor, Academician Du Yishan, for their training in me, as well as the Institute of Computing Technology of the Chinese Academy of Sciences. The future was not clear at that time. Under such circumstances, it provides valuable supercomputing resources..." Can you afford to offend this? Even those who had some ideas before have forgotten them now. The special prize also comes with a trophy and a certificate, but the certificate is significantly larger than the first and second prizes. Liu Zhenxiang hugged it to his chest and even slightly blocked his chin. ?After filling the scene with suspense and atmosphere, the host finally waved his arm to signal the staff behind him to switch the projection content. In the auditorium, applause resounded throughout the audience again. The main reason is that the time is too short, the longest cannot exceed three minutes. ?However, it represents the voice of a new generation of scientific researchers. Obviously, his heart is not as plain as it seems. Even if you have some ideas, after seeing that many experts in the field of control science and computer algorithms showed no abnormalities, you should be able to feel that this award-winning project is not easy to defeat... But it is a recognition of him, 624 Institute, and the entire high-altitude platform project team. ?However, the people who can sit in this venue may have evil intentions and may be weak-minded, but in short they cannot be fools. So he talked for a long time and had a lot of content. From the beginning of drilling into ravines in the 1980s, to the belt-tightening of the military industry at the turn of the 1980s and 1990s, to the first light of dawn, and then to the results after the high-altitude platform was put into use. Even though a lot of content that is not convenient for public disclosure has been concealed, Liu Zhenxiangs speech has still become a microcosm of the fate of military workers and even all Chinese researchers since the 1980s. At the end of the story, not only him, but also many people below shed tears. Liu Zhenxiang also specifically mentioned Chang Haonan. ?Of course, he did not explain the relationship between the latter and the new national military standard, but only expressed his gratitude for his contribution to the application of high-altitude platforms The revision of the national military standard involves the struggle for dominance in the development of China''s aviation industry. The involvement is too wide. Therefore, the Commission of Science, Technology and Industry for National Defense has always been led by Liu Zhenxiang and did not expose Chang Haonan prematurely. Generally speaking, the Science and Technology Progress Award is the most awarded, and therefore the one that attracts the most attention among the three awards (the International Cooperation Award is not awarded together). Hence, Liu Zhenxiangs acceptance of the award should basically be regarded as the climax of the entire ceremony. The following technical invention awards and natural science awards are generally awarded very quickly. Including the acquaintances Chang Haonan met before the meeting, most of them also received the Science and Technology Progress Award. For Chang Haonan, being able to take home a first prize is considered satisfying. After all, the two king bombs in his hand, the turbofan 10 and the heavy die forging press, have not yet produced results. There are still opportunities to get them later. So, after Liu Zhenxiang received the award, he felt completely relaxed. ? And because I didnt get much rest this whole day, I even started to feel drowsy very quickly. However, things developed beyond his expectation. ?Just when Chang Haonan was trying to fight off sleepiness, he suddenly heard his name again. 1997 National Technological Invention Award Special Prize In fact, when the award was read out by the host, there was already a small commotion at the scene. Is there a special prize for the Technical Invention Award? Yeah, I thought it was only for the Science and Technology Progress Award Is it newly established this time? Soon, someone with more seniority explained: Yes, in 1981, Mr. Yuans indica hybrid rice won the Special Prize for Technical Invention, but after that, it should not have been awarded again..." Wouldnt it be that it has been vacant for fifteen or sixteen years? We originally thought that this special prize was a customized award for hybrid rice, and we stopped giving it out after it was given out. But we didnt expect it to be given out again this year..." I just dont know which project can have such a big impact At this time, the host has also revealed the suspense Portable modular flood control reinforcement kit Xi soil, winner, Chang Haonan! The whole house was in an uproar! ?Chang Haonan himself was suddenly awakened from his half-dream. ?Those who knew Chang Haonan almost all subconsciously looked at where he was sitting. ?Even several leaders who were responsible for taking turns to present awards on stage, and even some members of the awards committee, all showed expressions of confusion or shock. ? ?The selections for different categories of awards are conducted separately, especially the selection committee of the Science and Technology Progress Award. They had no idea that the Technology Invention Award next door had awarded Chang Haonan a special grade. ?In turn, the Technical Invention Award Jury actually only found out that Chang Haonan won the first prize when the awards were just handed out... ??Only the host who had rehearsed in advance, and a few people such as Song Jian who had known the inside story for a long time, looked normal. It is an unprecedented feat for the same person to win twice in the same selection. Whats more, one of them is a special prize for technical invention that has not been awarded in more than ten years... However, anyone with a discerning eye can see that the flood protection reinforcement kit is definitely related to last years major floods. Those who know a little bit about the inside story will speculate that this should be the kind of new equipment that can turn the world around at the two key points of Xunyang and Jiangling. Considering the selection process for the Grand Prize, this is probably an instruction directly from the top... ?Chang Haonan has just finished his confusion and is ready to go on stage to receive the award again. The people in the audience were thinking further. ?More than half of the eyes in the venue were focused on the last series of awards, which is the director of the selection committee of the Natural Science Award. ?The meaning is obvious. You wont give him an award, right? Originally, everyone just thought about it casually. ?However, the person being stared at was already sweating on his forehead. ?Seeing that the situation at the scene had changed, Song Jian simply asked the host to tell the following content directly. I can only say that he is a live host hired from CCTV, and his professionalism is not at all high. Faced with this complete deviation, it only took a few seconds to find the one he needed from a pile of cards in his hand, and then stood at the front of the stage again, facing Chang Haonan who had just recovered. : Comrade Chang Haonan, I have another piece of good news to tell you. As the first person to complete the project, he won the first prize of the National Natural Science Award... The winning project is Prediction and Prevention of Severe Weather Conditions Affecting Aviation Safety! When he said this sentence, even the host, who had rehearsed several times and already knew the plot, was a little numb. Even if he is not a scientific researcher, he can feel that the young man in front of him who is younger than himself seems a bit too unnatural. As for the other people in the audience... It''s even more numb. Everyone is here to receive awards today. And Chang Haonan. But it seems like Im here to purchase goods (End of this chapter) Chapter 531 Our work is beneficial to the people Chapter 531 Our work is beneficial to the people One special prize and two first prizes. Even since the Science and Technology Awards began in 1979, Chang Haonan is definitely the biggest winner in a single award. or In fact, the restriction of "single award" should also be removed. Three projects, all completed by the first person. Generally speaking, to be able to participate in award-winning projects of this level, it would be good for a person to host one or two in his lifetime. ?Furthermore, even if you still have the energy to host the third one, by this time, you have basically established a sect. In this case, most people will choose to give up the position of the main completer to their direct disciples. From the perspective of a bowl of water being equal, the selection committee usually tends to award the award to new faces. ?Of course, he has become the absolute protagonist tonight, and there is no need to do such unnecessary actions. But I never took it seriously, I just thought about it casually. You should know that the National Science and Technology Awards are selected every year. As a result, the reality turned out to be more exaggerated than what he casually imagined... Because others have done projects that are more suitable for applying for the Natural Science Award... After all, for those who dont know the inside story, the project Prediction and Prevention of Severe Weather Conditions Affecting Aviation Safety seems to logically explain Chang Haonans position in the J-8C project. But his image makes it difficult for people to associate him with Xueba. Chang Haonan took over the two trophies and certificates with a somewhat confused expression, so he was a little confused for a while and didn''t know how to show it to the audience. It seems that while Chang Haonan was working on these three major projects, he also had a major impact on the other two projects. These three projects were all awarded awards in 1997, which obviously shows that they were carried out almost at the same time. ?Who would have thought that such an outrageous person would accomplish such an outrageous thing in his twenties? ? Putting it into a normal script, Chang Haonan''s image in the minds of most people at this time should have moved towards the perspective of a super university boss. In this regard, everyone can only say - Please be a human being... In fact, not to mention the audience, even Chang Haonan himself on the stage was a little confused. During the two days of preparation, he had dreamed of winning two awards at the same time. The differential evolution algorithm can be seamlessly connected with the power grid optimization project. ?In addition, everyone now finally understands why the results of the previous differential evolution algorithm were included in the Science and Technology Progress Award. ??In addition, this guy has a lot of connections, everyone has to give him three points, and it is normal to put him in the second place among the finishers... At the same time, both are hosting projects Comparatively, the positions of the two second-place finishers at the beginning were not that exaggerated. Following that is the acceptance speech According to Liu Zhenxiangs experience just now, there is no time limit for the speeches of the special prize winners. But what needs to be said has just been said... Chang Haonan had no choice but to turn his head, which was a little dizzy from the huge surprise, and organize his words quickly. ?Although these three projects are all publicly available, if the prediction of severe climate conditions is carried out, it will inevitably involve cooperation with China and the European Union. Even Chang Haonan himself is a little unsure about what can and cannot be discussed in this part. Comparatively, the flood control kit is more topical and story-telling. "Once again, I would like to thank the National Science and Technology Award Review Committee for recognizing the project I am leading. This is not just me personally, but also the result of the joint efforts of all the comrades involved in the project..." ? ? ? "For me, it is also a great honor to be a As scientific researchers, they participate in the battle of emergency rescue and disaster relief, and to protect the safety of people''s lives and property..." Our performance in the face of natural disasters once again proves that science and technology are the primary productive forces, but at the same time, we must not forget those frontline comrades who face the floods with their flesh and blood..." "In the process of collecting feedback on the use of ''Xirang'' equipment from all over the country, I saw many, many similar stories. In Xunyang, there was a regiment leader surnamed Wang who led the entire regiment and commanders above the company to persevere in the flood. For two days and two nights, in Gangneung, young soldiers held sandbags and dived underwater to seal the breach more than a dozen times a day..." The words in these reports make me truly feel that our work is beneficial to the people..." Compared with the previous acceptance speech that used parallelism to express gratitude, this section is much richer in content because there is no time limit. At the beginning, Chang Haonan really wanted to delay for some time and get off the stage immediately after speaking. ?But when he actually started to talk about the incidents he had seen from flood rescue reports from various places, his emotions gradually came into place. So, this lecture lasted nearly 15 minutes. As a speech for such an award ceremony, it is indeed a bit ridiculously long. ? Its just that no one from the audience, the host, or even the staff backstage expressed any impatience. ?Although Chang Haonan''s tone is very high, it is not difficult to distinguish between empty talk and true feelings. Finally, thank you all, and I wish all comrades on the scientific research front to integrate their results into the land, sea and sky of the motherland! After Chang Haonan finished speaking, the audience burst into applause. Enduring. In fact, he only completed one acceptance speech. The results of aviation weather forecasting are intentionally omitted. ?However, at this time, no one paid attention to this. ?From a technical point of view, the Xi soil flood control kit does not seem to have any particularly earth-shattering breakthroughs. It is not easy to convince the public that such a patent can win a special prize for technical invention that has not been issued for more than ten years. ? Even if no one dares to express their fear of the special prize selection rules, they will always have their thoughts in mind. However, Chang Haonans speech just now has become, to some extent, the best annotation for this award. ?Before leaving the stage, the host specially brought a bag from the backcourt. Chang Haonan won three sets of trophies and certificates this year, including a particularly large set of special prizes. So, such a thing is indeed needed... ?In addition, this scene also caused a burst of laughter in the venue that was originally too serious and serious because he had raised the atmosphere ??The trophies and certificates were packed and taken away, and now people really came here to purchase goods... Xiao Chang, what you said just now is quite good. After sitting down, Liu Zhenxiang took the lead in expressing his affirmative attitude: "Especially the last sentence, I estimate that after today, it will become a propaganda model..." ?But then, he changed the topic again: Tell me the truth, have you ever made any special preparations before? Chang Haonan was lowering his head to pack up the goods he had purchased this time. When he heard this question, he quickly shook his head: I really dont know. I even attended this award ceremony only after Director Ding called me back two days ago and told me. Originally, I was still in Shengjing... This time, Liu Zhenxiang stared at Chang Haonan for a long time: "To be honest, your kid''s position in these few times is higher than that of several old guys I know." Originally, Lao Du and I were worried that your position and reputation would rise too quickly and you would inevitably suffer some losses in non-technical aspects. But now it seems that we are far behind you in this aspect (End of this chapter) Chapter 532 Three prizes for one person! Chapter 532 Three prizes for one person! Chang Haonan''s three-prize award and his heartfelt acceptance speech directly aroused the emotions of everyone present to the highest point. Considering that everyone originally thought that the climax of the evening should be Liu Zhenxiangs special prize for scientific and technological progress, this was already equivalent to the second emotional peak. It is equivalent to a bit of overdraft. ??Moreover, the ceremony that lasted the whole afternoon was coming to an end. So, when it came to the last part of the Natural Science Award presentation, although the host was still doing his best to arouse the atmosphere at the scene, not to mention other people, even the winners themselves were not that high in interest. ??The only surprise may be that the project "Symplectic Geometry Algorithm for Hamiltonian Systems", also a project of the Institute of Computing Technology of the Chinese Academy of Sciences, also won the first prize of the Natural Science Award. In this way, the Institute of Computing Technology of the Academy of Sciences has made a lot of money this time. Even though Chang Haonan won three awards alone, the applicants for these three awards were Beijing Hangzhou University/Institute of Computing Technology of the Chinese Academy of Sciences (Differential Evolution Algorithm), Torch Group under the Chinese Academy of Sciences (Modular Flood Control Equipment), and Beijing University of Science and Technology. Aviation University/China Aviation Industry Corporation (Prediction and Prevention of Severe Weather Conditions). Equivalent to getting half of it. Therefore, in this selection alone, the Institute of Computing Technology won two and a half first prizes, and a less eye-catching project "New Progress in Machine Proving Theory and Algorithm of Geometric Theorems" won the second prize. The dinner party is still indispensable. After this afternoon, Chang Haonan will definitely become a hot new star in the academic world. ? Xu Yang is probably the one who is closest in age to Chang Haonan in the entire venue, so getting along with them is naturally more natural. It can be regarded as leaving some regrets. ??If it weren''t for the faint "ding-dong-dang" sound that came from his walking movements, then no one would have been able to guess that there were three certificates and trophies symbolizing the highest honors in the Chinese scientific research community. Since Chang Haonan had already received the first prize in natural science before, after Li Jie received the award and delivered his acceptance speech, the entire award ceremony came to an end. ?It''s a pity that the latter came back a little too late, so he didn''t get the chance to meet this legendary master. ?Chang Haonan was holding the inconspicuous cloth bag in his hand. ?However, it is a pity that Academician Feng Kang, the first person to complete the "Hamiltonian system''s symplectic geometry algorithm" project, passed away as early as 1993, and Academician Li Jie, who has been promoted to the director of the Institute of Computing Technology, can only accept the award on his behalf. Among all units, he is definitely the best. ThisI didnt think of it before. I thought it would be good to comment on one But if you really dont know someone at all and dont have anyone to recommend you, its still more embarrassing to post it. Under the guidance of the venue staff, everyone left the conference hall one after another and moved to the banquet hall on the second floor. ?His achievement "Difference scheme based on variational principle" created the finite element method independently of the West and is equivalent to Chang Haonan''s direct predecessor. Of course, with so many big names in academia working together, it is impossible to just accept the award and then leave them alone. ?Of course, they are all more or less familiar with Chang Haonan. What he said was indeed true. And such a group of people quickly gathered around Chang Haonan. You actually applied for so many projects at the same time, and you were all rated... ?However, after all, the technical staff are not soldiers with orders and prohibitions, and the field management has no coercive force, so in general, the flow of people is still moving in small groups. Academician Feng Kang was transferred to the Institute of Computing Technology in 1957 and can be said to be the founder of Chinese computational mathematics. It wasnt until he returned to his seat after receiving the award for the second time that Chang Haonan came back to his senses. ?According to the Science and Technology Awards rules mentioned by Liu Zhenxiang before, the selection of special prizes requires additional nominations and then reported to the competent ministries and commissions, as well as higher-level leaders for approval. Hence, the special prize for technical invention won by the Xiliang Flood Control Kit must have come from above. It is the result of converting the honors earned in the process of flood fighting and rescue operations. After all, although this thing has indeed turned the tide in many places, it is still less interesting than the hybrid rice that won the same award fifteen years ago... Excluding external factors, Chang Haonan himself felt that he would be able to win the first prize... As for the other two, it should be entirely due to the fact that the selection committees of the three awards did not communicate with each other, and they did not expect that one person would be in the same position. Submit several award projects every year... Of course, the selection results will eventually be brought to the hands of the leader of the Science and Technology Committee, namely Song Jian. But the above has made it clear that Chang Haonans contribution will be rewarded. Moreover, Chang Haonans Torch Group is a company under his Science and Technology Committee, so there is no reason to obstruct it. In short, his solid contributions, coupled with many chances and coincidences, have made Chang Haonan the legend of being a **** with three awards for one person today. While talking and chatting, people started to flow upstairs and entered the banquet hall. For a formal banquet of this level, the traditional Chinese meal must still be served. In short, it is necessary to divide the table. Generally, positions are allocated according to the participants unit and award level. ?However, Chang Haonan won the award for four units by himself, which was indeed unprecedented, so in the end he had to be assigned to one of the tables of the Chinese Academy of Sciences and the National Science and Technology Commission according to the Torch Group. Just sitting next to Li Jie. Comrade Haonan, congratulations to you. After sitting down, Li Jie took the initiative to shake hands with Chang Haonan: Being able to win these three awards at the same time in one selection, even in the future history of Chinas technological development, your contribution will be indispensable... Although the two of them dont meet many times, they actually have a close relationship. After all, at least two-thirds of Torch Groups technical staff are poached from computing laboratories, or are people who hold two jobs. Academician Lis achievements this time are not small. The number of awards received by the Institute of Computing Technology should be the most among all units. ?Chang Haonan put the cloth bag next to his seat and began to chat with Li Jie. At this time, it was still some time before the dinner officially started. Therefore, many people did not sit still and wait after finding their seats. ??Whether its for liaisons or academic exchanges, in short, if such a big occasion is just for eating and drinking, it will be a loss to grandmas house. Mr. Chang. ??Just when Chang Haonan and Li Jie were chatting about the relationship between the Future Computing Institute and Dream Group, a somewhat familiar female voice sounded from behind. The former turned around, and after being stunned for a moment, he quickly recognized the other person''s identity. Zhu Lan, professor at Jincheng University. ??When Chang Haonan developed the ice growth prediction model and aircraft anti-icing system, she and her husband Lin Guofan also played an important role in it. Including Chang Haonan''s husband and wife in the list of main finishers of the first-class natural science project. Professor Zhu? Long time no see, hello, hello. ?Chang Haonan stood up and shook hands with Zhu Lan. ? He ??did not remember what award the latter had just received, but considering that he had been drowsy during the first half of the Technology Invention Award presentation, he speculated that Professor Zhu should have received a first- or second-class Technology Invention Award. Congratulations to Mr. Chang for winning three awards in a row today. When I worked with Nanzheng before, I felt that your ability was extraordinary ?Zhu Lant came here unexpectedly, obviously not just for a simple chat. So, after some compliments and exchanges of politeness, she quickly got down to business: "Mr. Chang, our Jincheng University is also one of the first trial users of TORCH Multiphysics software. During this period, we have also tried to use new numerical calculation methods to solve many practical problems. My husband now has an idea and would like to hear your opinion. " The "my husband" Zhu Lan refers to naturally refers to Lin Guofan. Can the numerical calculation method of TORCMultiphysics software be introduced to problems of very large physical scales and time scales, such as... geological research? (End of this chapter) Chapter 533 Madam, you dont want it either Chapter 533 Madam, you dont want to either Geological question? This is completely a blind spot in Chang Haonans knowledge. Although all engineering problems can ultimately return to physical problems and then be reduced to mathematical problems. But this does not mean that mathematicians can solve all engineering problems in one step. Even a master like Chang Haonan, who is rich in theoretical knowledge and engineering experience, must first learn basic knowledge when faced with problems he does not understand. Or let people analyze the essence of the problem. So he thought for a moment and asked: Can you be more specific? What type of geological problem is it? At least I have to be clear about the research object. ?However, the key point is not difficult to get. Zhu Lan said as he fumbled around in his jacket pocket for a while and took out a small notebook. It cannot be said that it is directly feasible. ?Of course, having said that, you still have to be sure, otherwise it will be like jumping to the top. "Wait a moment" "The research project is...''Vibration response and cumulative permanent deformation of permafrost sites under the load of heavy-duty trains''. The research objects include various undesirable frozen soil phenomena including instability of the water and heat balance conditions of permafrost, changes in the upper limit of frozen soil, etc." The high temperature and extremely unstable permafrost area..." Reasonable. Chang Haonan lowered his head and organized his words: Hearing Chang Haonans judgment, Zhu Lans eyes lit up: In other words... it should be feasible? Permafrost, train. ?Zhu Lan shook his head: This is what my old Lin told me last night when he called me. Because it was an outside call, I didnt mention anything in detail. At this point, Chang Haonan felt that these proper nouns might be a bit unfamiliar, so he changed the subject and asked: Chang Haonan is nodding his head when he hears the name of this kind of project. It is impossible for Zhu Lan, who is not a professional, to remember it without a notebook. Then lets take it as such for now. Chang Haonan already had an estimate in his mind, and he just asked casually. No matter how Zhu Lan answered, he would definitely continue: From a theoretical perspective, this problem is probably a composite problem of the temperature field, the stress field inside the frozen soil layer, and the pressure field of external dynamic loads. This is, after all, Lin Guofans problem, not her professional direction. The two keywords put together may not mean anything to people of this era, but for Chang Haonan who has returned from rebirth, it is not difficult to guess where this project is aimed. There are no obstacles at the solution level of the core set of partial differential equations, but at the operational level, if a railway is really thousands of kilometers long, even if only part of the permafrost layer is studied, there will be at least a research scope of hundreds of kilometers. Then it is impossible to solve it as a closed domain problem like a general problem. Because these three fields are basically completely independent, the numerical solution of the strongly nonlinear partial differential equations will eventually be implemented, which is exactly what the TORCMultiphysics software is good at, although the calculation process will be more troublesome. Are you planning to build a railway in XZ? "Whether it is the finite element method or the finite volume method that is commonly used at present, if you calculate an open domain problem, you must impose truncation boundary conditions. You can consider constructing an interpolation shape function in the local coordinate system, such as Bettess element and Astley element, or directly in Construct interpolation shape functions in the global coordinate system, such as Burnett elements..." Do you need me to write these functions for you? But Zhu Lan shook his head: No need, I study surface physics. I have some understanding of what you mentioned. It should be regarded as the infinite element method... Surface physics Hearing this, Chang Haonan suddenly became energetic: Professor Zhu, our company is currently studying the dynamic model of microscopic particles on the surface of metal materials during the grinding process. I wonder if you are interested in participating? Originally, Chang Haonan should have finished talking about the current matter before starting the next topic. However, high-precision abrasive belt grinding will have a great impact on the production efficiency and yield rate of turbofan 10 after it enters mass production in the future. It is one of the core technologies in the third-generation aviation production process. After all, Chang Haonan himself is not an expert in this field. If he really has to learn it all by himself, it will take some time. The most lacking thing in the Turbofan 10 project is time. Even if the finalization cannot be completed, Chang Haonan still hopes to advance the engine to a state of sufficiently high stability before October 1999. Let third-generation fighter jets equipped with domestic engines, even prototypes, participate in the military parade! ??Now Zhu Lan''s level is definitely high enough and reliable enough. If he can be brought over to lead the project, it will not only advance the research progress, but also be equivalent to finding a teacher for Chang Haonan himself. ??No matter how you look at it, you are killing two birds with one stone. So I asked immediately. ??And this question that turned against guests directly stunned Zhu Lan. Chang Haonan saw that the other party was worried about the distance between Jincheng and Beijing, so he continued: "As for the salary issue, you can rest assured that all your expenses in Beijing and the round-trip air tickets from Jincheng to Beijing will be taken care of by us, and we can also give you an additional subsidy based on the basic salary standard of a senior researcher in our group. " ??Torch Group is a state-owned enterprise, and the company''s money is not Chang Haonan''s own money anyway. In addition, there are only a small number of people in the company, so he basically doesn''t hesitate at all in offering benefits. In this era, the treatment of scientific researchers is generally relatively average. ?Especially for research institutions in relatively remote locations like Jincheng University. Even if Lin Guofan and Zhu Lan are both full senior professors, their lives can only be described as average. Facts have proven that adding money is indeed effective. "I have to discuss this matter with our Lao Lin, but...it shouldn''t be a big problem." ?Zhu Lan thought for a moment, and although he did not give a direct answer, his tone and expression were basically stable. Thats good, our group is in urgent need of reliable fresh blood, and we really need talents like Professor Zhu to join us. ?Chang Haonan''s on-site poaching not only made Zhu Lan a little confused, but also almost confused the other people at the same table. ?However, colleges and universities do not restrict faculty members from taking part-time jobs outside the school, so speaking of it, there is no problem. After a small interlude, Zhu Lan and Chang Haonan remembered the topic they had just talked about halfway. By the way, the infinite element method I just mentioned... ?Zhu Lan picked up the pen again, preparing to record what Chang Haonan said next. But the latter waved his hand directly: "Since you understand the idea of ??the infinite element method, there is nothing more to say. We cannot immediately upgrade to a new version for this less commonly used method, but we can develop an external toolkit for the infinite element method through the reserved interface. Just think of it as part of the cooperation with Professor Zhu to join our research project. ?Chang Haonan said this, obviously continuing to increase the requirements just now ?Ms. Zhu, you dont want your husbands research project to be without useful tools, right? Ahem Zhu Lan, who was opposite, had no objection to this. After all, apart from the need for a long business trip, she would at least not suffer any loss. Then on behalf of my husband, I would like to thank Mr. Chang in advance for his help. Zhu Lan said as he put the pen and notebook into his pocket. The dinner was almost about to begin. She wanted to say goodbye and leave, but something suddenly occurred to her: By the way, Mr. Chang, what is the name of your project? This needs to be reported to our school. Study on the microscopic mechanism of the material surface removed during abrasive belt grinding. (End of this chapter) Chapter 534 The semiconductor industry chain must be started from scratch Chapter 534 The semiconductor industry chain must be started from the beginning ??Today''s dinner party is a good occasion for socializing, but there are many people and there is not much time to talk about too many things in detail. ?Besides, even if it was just a formality, Zhu Lan had to ask Lin Guofan for his opinion. Don''t say that Chang Haonan is just cooperating with others, the relationship between the two parties is equal. Even if the superior unit wants to transfer work, except for a few special circumstances, it must first seek the consent of the family members. So, after initially confirming the intention to cooperate, the more specific content must be discussed later. ?After Zhu Lan and Chang Haonan said goodbye and left, Li Jie, who was sitting next to him, looked at the former''s back and asked with some surprise: Comrade Xiao Chang still has such familiar colleagues in the northwest? Those invited to attend today''s award ceremony all wear badges with their names and workplaces written on them. After the ceremony, most people didn''t have time to pick them up and were taken directly to the banquet hall on the second floor. That''s why Li Jie could directly tell that Zhu Lan was from Jincheng University in the northwest. So when Li Jie said this, he also became interested: ??Due to the butterfly effect set off by Chang Haonan, the situation of the Institute of Computing and Shuguang Group is much better than in the previous life, at least they have not been reversely annexed by the Dream Group, which has now independently operated. "So there are related characteristics of frozen soil, such as convection, mass migration, water evaporation heat consumption, heat conduction between soil skeleton and other media, ice-water phase change, and of course other characteristic data that geological experts know but I don''t know. It is still necessary to conduct research and analysis on the actual situation along the route..." ?Li Jie paused for a moment, and then said as if talking to himself: If we really want to build the Qinghai-Tibet Railway, Jincheng University should indeed contribute more..." Of course Chang Haonan knew that this railway must be built, but at this time he still had to pretend: Does the country really have plans to build railways in snowy areas? able. If this is the case, then we at Shuguang Group should make preparations in advance... Facing Chang Haonans strong reminder, Li Jie briefly calculated the current timetable, and then replied: If nothing else happens, Sugon 2000-1 will be put into use in the second half of this year. Based on some experience of previous Sugon 1000A feedback, the computing speed of the new model can be increased by about an order of magnitude. At least from my professional point of view, its no problem. The extended toolkit for the infinite element method will not take long to be developed. ?After briefly explaining the situation to Chang Haonan, he changed the subject and asked the latter: What you just said is that you can use numerical calculation methods to analyze the situation after dynamic loads are applied to the roadbed in the frozen soil area. Are you really sure it can be done? Of course Chang Haonan has nothing to hide in these contents. The current computing speed of Dawning 1000 and Dawning 1000A can no longer keep up with our needs. Chang Haonan is certainly aware of this situation. Chang Haonan gave an affirmative answer almost without thinking: Of course, any numerical calculation that is applied to specific engineering problems requires corresponding data support, and it is impossible to calculate in a vacuum. Li Jie nodded: "It has been around for a long time. Construction of the section from Xining to Golmud started in the 1950s, but it took almost 30 years for it to be completed and opened to traffic. At that time, it was felt that further repairs would be too technically difficult and not feasible, so it was temporarily shelved. " As a researcher in the field of numerical computing, Li Jie certainly knows that what Chang Haonan said later is a supplementary explanation out of rigor. Speaking of this, Academician Li, I wonder how the development progress of Dawn 2000 is going? So he directly condensed the entire answer into one word ??In addition to being the new director of the Institute of Computing Technology, Li Jie is also the chairman and general manager of Shuguang Group. Ah, we met when we were doing aviation meteorological research in Nanzheng. Professor Zhu and his husband, Professor Lin Guofan, made a lot of efforts at that time. However, as an asset-heavy R&D enterprise, the latter needs to work harder to maintain a balance of payments. What Im thinking about now is whether we should design a suitable supercomputer for very large projects like the Qinghai-Tibet Railway in advance, so that when the project is actually approved, even if the performance of our product is slightly inferior, we dont have to wait for it to be in stock. After all, it can still account for some usage share..." Computer hardware is actually similar to software. We are not afraid of falling behind temporarily, but we are afraid that there will be no market. ?Without a market, there will be no feedback, and it will not be able to bring about an entire industrial chain. ??And the wave of supercomputing craze that Chang Haonan set off last year can be regarded as solving the urgent need of Sugon Group. Otherwise, the capital chain may become unstoppable. But just relying on a few universities, and they are all orders from second- and third-rate universities with poor conditions, is definitely not an option in the long run. The Dawn series of supercomputers still need to prove themselves on a larger stage. However, if we really want to surpass foreign countries, especially our counterparts in the United States and Japan, in hard indicators, it is obviously not something that can be achieved within one or two years. That''s why Li Jie thought of taking some sideways paths. I have to say that this idea was indeed something Chang Haonan had never thought of before. ??But after hearing Li Jies idea, Chang Haonans mind suddenly came to a more unrestrained idea: Academician Li, I think we should do it more simply. "Can Sugon Group cooperate with our Torch Group to optimize a supercomputer specifically for TORC Multiphysics numerical calculation software, for example... it can be called Shuguang 2000T, and it can be specially provided for use in very large projects like the Qinghai-Tibet Railway. Anyway, they are dedicated to special planes. , you dont have to care about compatibility at all He doesnt know much about the computer hardware field. But judging from past experience, it should be feasible for computers to optimize specific types of applications from the hardware, or at least the underlying driver software level. For example, using N card for mining is better than using A card... ?At this moment, it was Li Jies turn to shine: You meanbundled sales Nodont say it so harshly Chang Haonan quickly waved his hands to deny: Can we call it a joint model... "Forced buying and selling is definitely not good, but we can add some exclusive functions of the Sugon 2000T co-branded model to the professional version of the software for the public. After unlocking it, it is equivalent to purchasing half of the professional upgrade model, and then we recommend that customers choose Sugon. The groups products Of course, part of the profits from this joint model must be shared with our Torch Group... Chang Haonan''s gameplay is somewhat similar to a certain platform exclusive in the gaming industry, or at least a first-release exclusive. It is a very common marketing strategy in later generations. ?However, in China in the late 1990s, it was obviously still relatively new, which at least made Li Jie feel a little brain-burning for a while. After a while, he came back to his senses: If you want to do this, it will not only be a system and architecture problem, but also the core hardware, such as the chip level, must be modified accordingly..." Of course it needs to be changed. For Chang Haonan, who returned from time travel nearly twenty years later, "making independent chips" is almost an instinctive idea. So, he continued to explain: If our supercomputing, and even the entire semiconductor industry, wants to develop, we cannot always rely on finished hardware provided by foreign countries. One day we must rely on ourselves. Since such a day will come, its better to prepare early. Its not that we need to get it right in one step. We can start with the design first. At worst, well have to hire someone else for production. Supercomputing chips are not consumer-grade products and are relatively less sensitive. In short, we not only want to revitalize Shuguang Group, but also lift up the upstream industrial chain bit by bit, at least not letting people fall further and further behind. "Right now, the international environment is relatively not that tense, and there is still the possibility of obtaining some technology and collaboration from abroad. If we don''t take advantage of this opportunity to start pursuing it quickly, if the situation changes in the future and we want to break through, it will be very difficult. Too much Clear and logical. ?Li Jie took a deep breath, stared at Chang Haonan for a while, and then nodded: Okay, Ill make arrangements when I get back. (End of this chapter) Chapter 535 forwarding satellite positioning interference Chapter 535 Transponder Satellite Positioning Interference ?Compared with the previous cooperations, the process of the dinner seemed a bit dull. ?Of course, this plainness is for Chang Haonan. A large portion of the people invited to attend the National Technology Awards are young scientists in the traditional sense. That is, researchers between the ages of 30-45. Not everyone can be like Chang Haonan, who has been through many battles in his early twenties and has seen a lot. So overall, the atmosphere is quite warm. After everything settled, Xu Yang refused to join his colleagues from the Computing Institute, but said that he planned to go directly back to the Computing Center of Beijing Hang University, which is the current actual office location of Torch Group. ??Naturally, I got into Chang Haonan''s car. In fact, during the dinner just now, Chang Haonan found that the other party wanted to say something to him several times, but he hesitated. It is already quite good if it can maintain its advantage for a period of time. At least for some time to come. "A complete GPS navigation signal is divided into three parts: pseudo code, carrier wave and navigation message. The pseudo code corresponding to civilian use, and even the military pseudo code of a considerable number of U.S. allies, is a crude capture C/A code, while the military precision capture The code is P code. ? Don''t look at Xu Yang''s understatement, it seems that he can interfere with the C/A code casually. ?Xu Yang organized the language a little, and then explained: In fact, the real difficulty of this task lies in the reverse solution of the navigation message, allowing the receiver to continuously calculate "wrong but reasonable" position information. To be honest, this research progress surprised Chang Haonan: In other words, if the opponents drones or precision-guided weapons use C/A codes for navigation, can we make these things listen to us? I have already tried this generative interference method. It can easily change the position coordinates in China to Africa. It can even generate a complete false movement trajectory, allowing the navigation equipment to work exactly as we want. It shows that this algorithm is quite reliable in terms of calculation accuracy, stability and speed. And has been researching in this direction for almost half a year. Otherwise, the GPS navigation device itself is not completely stupid. If you really let the location information keep jumping around, the relevant signals will be blocked immediately. I wanted to contact you a few days ago, but I couldnt give you details on my phone. ? ? If it can produce results, it will be equivalent to creating extremely high resistance to equipment such as precision-guided weapons and autonomous driving systems that rely on satellite guidance. The C/A code is completely open to the world, so it can be directly based on the real satellite signal format, forge a spoofing signal that is similar to the real signal, modify the position information in the satellite navigation message, and then send it to the spoofing target. Of course he knew that since the effect of the electronic jamming pod was verified, the other party''s research interest has shifted to jamming, or in other words, deceiving the satellite positioning system. Sure enough, after the car took the two to the computing center, Xu Yang followed Chang Haonan directly upstairs and entered the office: What Xu Yang just said was generating a complete false motion trajectory. In the "new three attacks and three defenses", this technology can solve the two problems of "attacking cruise missiles" and "preventing precision guidance" at one time. One sentence immediately cheered up Chang Haonan, who was already a little tired: Tell me more specifically? Of course, the opponent can counterattack by upgrading the system or changing the algorithm, but in electronic warfare, unless hard kills are carried out, there is no one-and-done solution. I have basically researched the trajectory deception algorithm of the GPS positioning system. I have tested it on civilian GPS receivers several times and the results are good. However, there are still some problems in terms of hardware implementation. ?Furthermore, dont underestimate the interference to the C/A code. Not to mention other countries, even within the US military, there are many devices that use civilian code positioning. Theoretically yes. Xu Yang nodded: "But this requires our interference signal to be much stronger than the satellite positioning signal. It is best to install it on an airplane or vehicle and perform close-in jamming midway." UAVs are okay, but if they are guided weapons, if they wait until they are close to the target before starting to interfere, then even if the interference is effective, the most it will do is make the ammunition slightly deviate from the target. "and" Speaking of this, Xu Yang changed the subject: "This method will not work for P codes. Unless we can obtain various parameters of the P code signal structure, or directly obtain a satellite-borne signal transmitter, it is impossible to directly generate a navigation signal that is realistic enough. " ?Chang Haonan is just a sweaty soybean: Then lets just change our thinking... ??The military code signal structure of satellite positioning systems in various countries is top secret. Not to mention making it public, even allies have to guard against it. ??If you can even get the complete parameters of the P code, then you dont need to think about the new three-on-three-defense, you can just write a plan to land on the West Coast... If you think about it differently, is it forwarding interference? Xu Yang has obviously also thought about other technical routes. Thats right. Chang Haonan grabbed the pen and paper and drew a simple diagram: The principle of pseudo-range positioning of GPS is to receive satellite navigation signals transmitted by 4 or more satellites, then calculate the pseudo-range based on the signal transmission time, and finally calculate the current position. "Now that we can''t forge the P code, we can let the jammer receive a completely real GPS signal, process the real GPS signal and forward it based on the relative position between the jammer and the target price receiver, and the target GPS receiver captures and tracks the spoofed GPS signal. , to calculate the wrong navigation position. As for the specific deception method, just improve it based on the algorithm you just mentioned. Only the pseudo code part differs between military signals and civilian signals. The format and content of the navigation message data code are exactly the same. Of course, there will be delays in the signals between multiple satellites, and our spoofing signals are sent out simultaneously, so we have to forge the time information to control the time difference within..." ?Chang Haonan wrote a calculation on paper: Just control the result to a positive number. ?This idea is not complicated, Xu Yang understood it after just a little thought. ?Of course, the degree of freedom of the deception content of forwarding jamming is low. For example, it is more difficult to replace the target signal from China to Africa. But it is not difficult to generate a signal error on the order of hundreds of meters. ?However, this idea still faces similar problems at the hardware level. But even so, we still need a device that can receive and interpret the P code, otherwise the signal forwarded will still only be the C/A code. Furthermore, this requires a very high signal processing speed for the jammer. After all, signal reception, processing, and forwarding are all completed by the jammer. In the case of generative interference, the jammer actually only needs to send signals. Theres nothing we can do about it. ?Chang Haonan threw the pen aside: It would have been impossible to interfere with military code positioning through purely technical means. Otherwise, the Americans and the Soviets would not have spent so much money building satellite navigation systems. "Fortunately, the positioning logic of GPS is passive positioning. The positioning terminal only receives but does not send signals, so it is not so sensitive. In any case, it is definitely more difficult to get a receiving terminal than to sneak into a NASA factory to dismantle a satellite signal. transmitter, or its easier to steal the complete characteristics of the P code. "As for the calculation speed...it''s actually not bad. I''ve read the information before. I forgot where. The characteristic data of GPS is only updated every 12.5 minutes. Therefore, after obtaining the data code through any GPS receiver, there is still a comparison. Sufficient time for data processing The bigger problem is that the inertial navigation equipment performs normalized information square detection on the signal. If the gap between the navigation signal and the inertial navigation signal is too large, it will be automatically filtered out..." ?Xu Yang, who was quite impatient, had already picked up his bag and stood up to leave: It doesnt matter, I have already considered this. The normalized information square is a scalar value. As long as you pay attention when generating deception signals, each false signal only changes the direction and does not change the distance to avoid this detection. I will contact the 14th Institute of Electronics and ask them to study the specific hardware design first. Before getting the receiving terminal, we can use the C/A code navigation device to do a functional test. Chang Haonan also stood up and sent the other party to the door of the office: Ill report it to the Science and Technology Commission about the receiving terminal. This thing will have to wait for an opportunity..." (End of this chapter) Chapter 536 Turbofan 9A finally survived Chapter 536 Turbofan 9A, finally survived In fact, if you are willing to wait a few more years, after the US military invades Iraq in 2003, GPS military positioning terminals will be used all over the world by fellow Middle Easterners who have seized trophies and American soldiers who resell the equipment, directly interfering with GPS. The threshold has been lowered several levels. So much so that after 2010, slightly higher-end precision-guided weapons had to use several additional terminal guidance methods to achieve composite guidance. ?Of course, you can also simply have people in the loop the whole time so that you can''t interfere, or use hypersonic speed to hit the jammer at lightning speed. In short, without some uncanny skills, the hit rate is often terrible. But Chang Haonan still hopes to put this equipment into use as soon as possible. ?This kind of equipment is a soft-kill weapon and is relatively less sensitive than aircraft cannons. But if used properly, it can still have a very critical effect. ?After sending Xu Yang out, Chang Haonan returned to the office, picked up the receiver of the red telephone, and called the Office of the Science and Technology Commission. At the same time, in the design research room of Institute 603 in Haojing. A group of designers are sitting around a long conference table. ?If nothing else, the advancements in aviation power, electronic equipment, aviation materials and production processes during this period alone are enough to create a new sub-model without significantly modifying the aerodynamic shape. Is this our completely domestic Sibei? ?At the front of the room is a drawing board and a curtain. "If there is an engine, the delivery of the new machine should be guaranteed..." ??But the officially finalized JH-7A is definitely a brand new mass production, so the depth of improvement must be much deeper than the upgrade of the old aircraft. Thats why there was such a scene of combining the local and the foreign. As a result, the Haofei Group''s investment in this model was not recouped for a long time, and everyone had a hard time. Chief designer Tang Changhong stood up and came to the side of the curtain: Comrades, a few days ago, the 624 Institute has sent back the basic performance test results of turbofan 9A. However, in the end, only two regiments were reluctantly delivered and a few more aircraft were owed, and they fell into a situation of insufficient engine supply. In fact, the original plan was to equip about 100 of the basic model JH-7. ?However, after all, it is the collision of the old and the new era, and the human-computer interaction of computers and software in this era is not very good, so it is obviously not realistic to completely go paperless in one step. ??Research on subsequent improvements to the JH-7 has already begun when the two JH-7s were modified. Especially for many parts that require on-site modification of the drawings, it is more convenient to use pen and paper. He had originally prepared a long sentence, but only halfway through his sentence, he found that most people''s attention had been completely attracted by the content projected on the screen. So, after hearing the topic of the meeting, everyone present immediately cheered up. Now that we have finally seen a domestically produced engine, it would be a lie to say that we are not happy. Let me just let everyone enjoy it for a while. Tang Changhong paused for a moment, then signaled the conference assistant to switch the projected PPT content to the next page, then gave up half of his body and pointed at the curtain with a telescopic pointer: This is the determined indicator of the domestic turbofan 9A engine. In accordance with the requirements of superiors and the advanced experience of our brother units, our improvements to the JH-7A this time will try to focus on the engine..." With the promotion of digital design and manufacturing models, most research institutes and factories in the aviation industry system have begun to gradually bid farewell to the traditional ruler + drawing board. Combined with the performance of the new aviation engine, our next step is to determine the improvement plan for the JH-7A. ?But soon someone saw the specific performance part behind it. Then, I realized that the situation was not that simple... This turbofan 9A... seems to be more than just a domestically produced Spey..." We are all aviation technicians. After being reminded like this, we naturally quickly discovered the difference: It seems true... Look at the thrust at sea level, its over 10 tons? The difference in thrust from sea level doesnt matter at all. Look at the envelope, especially the envelope at altitudes above 7,000 meters and speeds above Mach 1. Compared with Spey, its like two engines..." The surge margin has also been increased a lot... ????? The performance of Turbofan 9A was definitely the biggest surprise at the beginning of 1998 for these researchers who were worried about insufficient engine parts not long ago. However, when people are extremely surprised, they often cannot help but worry about gains and losses, and even doubt the authenticity of the event... Mr. Tang, are you sure that the technical indicators of the new aviation engine can be... stabilized? ?Someone raised their hand first and asked. The development process of the old JH-7 lasted for a long time, so much so that most of the people sitting here have not fully participated in the steps of project establishment and indicator determination of the old model. ?Furthermore, the basic version of the JH-7 uses the directly imported Spey MK202, which is a very mature model and is completely different from the turbofan 9A that has not yet been finalized. Otherwise, in aircraft design, power comes first. ??If the specifications of Turbofan 9A change significantly, the design of the entire aircraft may be affected. This is definitely a real issue for China Aviation Industry to worry about. Or rather, almost every model has faced a similar situation before. So it is normal to have concerns in this regard. ?Tang Changhong nodded firmly: According to what was reported to us by Liming Group, the subsequent new technology will only be used as a technical verification for the Turbofan 10 and will not be introduced into the improvement of the mass-produced Turbofan 9A. So the technical status of the engine has been basically determined, and there will be no major upgrades. Those two sentences immediately silenced the scene. What everyone is worried about is obviously not other subsequent technological upgrades. Its just that the actual performance after installation cannot meet the paper performance... No, Mr. Tang ??The person who just asked the question wiped the sweat from his forehead: I mean, there wont be any problems with the progress and reliability of the engine, right? The degree of improvement of this turbofan 9A seems...a bit radical..." For China Aviation Industry, which has copied or localized dozens of different types of engines, the previous question everyone considered was how many percent of the performance of domestic models could reach that of foreign prototypes. ?Now I suddenly heard that after being made in China, the performance not only did not decrease, but actually improved... It was hard to get used to it for a while. ?Hearing this question, Tang Changhong was stunned for a moment, and then laughed dumbly. He said to himself that those are the technical specifications set by Mr. Chang from the 606 Institute for turbofan 10. Otherwise, you would have to stare out your eyes. In fact, when Tang Changhong first saw the data of Turbofan 9A, he was a little unconvinced. However, Haofa Group stated that this model is an improved model that Mr. Chang personally consulted. Then he said nothing more ??Although he has not directly cooperated with Chang Haonan, given his status as the chief model engineer of Haofei Group, he has heard many legends about the other party... ?Of course, in this situation, we must still find some more reasonable reasons. ?So, after briefly organizing the language, Tang Changhong replied: "This is normal. In the improvement process of Turbofan 9A, quite a lot of third-generation engine technology was applied. Therefore, without major changes to the core structure, the maximum potential was squeezed out as much as possible. Besides, Spey MK202 has already Its a British model from the 1960s and 1970s, so its reasonable to be more advanced than it. Moreover, this model has now entered the end of the high-altitude platform test. So far, no major problems have occurred, which is enough to prove that this is a relatively mature model. If nothing goes wrong, our prototype No. 811, or at the latest No. 812, will be equipped with a turbofan 9A and a Spey in series for flight platform testing! (End of this chapter) Chapter 537 JH-7A, heavier, farther and safer Chapter 537 JH-7A, heavier, farther and safer Although Tang Changhong served as the chief designer for the first time, he had previously served as a subsystem designer responsible for important research and development content in the JH-7 basic model and MA-60 projects, so his prestige within the 603 institute was still not high. questionable. Since he said this, the others below naturally no longer have any worries and began to think about how to adjust the parameters of the aircraft to better adapt to the combat ideas of the new era and not waste the two engines with huge performance improvements. ?Seeing that everyone had unified their thoughts, Tang Changhong continued to add: This time, the users of the JH-7 have expanded from the pure navy to the navy and air force. The latter also provided us with a project fund and required the aircraft to have the ability to conduct ultra-low-altitude penetration and use precision-guided weapons. Users have put forward new requirements, so we also need to make some targeted upgrades to the aircrafts functions. ?After a brief silence, a young engineer responsible for assisting Tang Changhong in the overall design of the overall plan spoke first: "Since the performance of the new engine is so much better than that of Spey, the wing area and strength can be slightly expanded. The old model JH-7 can only carry two YJ-81 anti-ship missiles. This efficiency is too low. The navy faces fewer targets, so the problem may not be too big, but the air force may have to attack multiple targets at one time, and the low ammunition carrying capacity will definitely reduce combat efficiency. ?Hold a technical seminar and hold a group meeting for graduate students. Someone immediately expressed his position clearly: "When Mr. Chang was here to revamp the JH-7, I was fortunate to work under him. According to Mr. Chang''s work style, when designing things, he will definitely leave behind a whole set of methodologies. Let''s learn from them. You can definitely get twice the result with half the effort. Borrowing ideas, but not copying them. The person to be sent to study People are interested in this kind of gossip content. Obviously, the name Chang Haonan is somewhat legendary in today''s aviation industry system. Who else could it be? It must be Mr. Chang Haonan. If you calculate the time, it should be right... "in addition" In addition, I also heard from people over at the 601 Institute that the leading edge slat structure of the J-8C was the first change that Mr. Chang started to complete after he joined the 83 Project! When I went to the 601 Institute on a business trip last year, I saw some J-8C wing design information. I think it can be used as a reference. "The finalized J-8C adopts the idea of ??integrated design of leading edge slats, main wings and trailing edge flaps, which can avoid the simultaneous occurrence of mixed boundary layer and flow separation when the flap slats deflect at the same time. Although it is a large delta Its a wing-less interceptor, but its low-altitude lift and maneuverability are excellent. ?However, in the end, he lowered his voice and continued: Once the first person speaks, the others will follow naturally. Hissif thats the case, you can really consider sending someone to study. Every interceptor aircraft is designed with low-altitude performance in mind. It would be a huge disgrace if our fighter-bomber failed in this aspect..." When speaking of this, someone immediately expressed doubts: "J-8C...isn''t that an interceptor? It''s also a delta wing. It doesn''t match our aircraft at all, right?" Mr. Xiao Chang? Its... The old designer stretched out his fingers and tapped the table in front of him, as if to emphasize what he was going to say next: At this point, he paused slightly, as if he was hesitating whether to continue. ?Another old designer with gray hair on his temples who looked much older than Tang Changhong continued on the topic of the wings: When Mr. Chen designed the aircraft, in order to reduce the risk of research and development, he chose a relatively conservative airfoil, which resulted in the overall flight performance being average. Seeing that the topic was getting a little off track, Yang Lin, a senior engineer responsible for the design of airborne weapon systems, tapped the document paper in front of him with the cap of his pen: Speaking of ultra-low altitude penetration. "The Air Force''s ultra-low-altitude penetration is different from that of the Navy. The environment is much harsher. Our country currently does not have low-altitude comprehensive navigation equipment like the US military''s AN/AAQ-13, or even targets like PRNK-23K that can adapt to low-altitude environments. The identification and tracking systems lack existing models... ? ? ? As a result, whether it is flying or attacking, we are under great pressure... Looking on the bright side, the JH-7 has two pilots who can be responsible for flight and attack respectively, so the pressure is not as great as the pilots of the MiG-27 or F16C. ? Gong Xinmao, the deputy chief designer in charge of flight control system design next to him, added a sentence, which was barely comforting. Immediately afterwards, he expressed his thoughts: Can we consider using the search radar on the nose of the aircraft to track the terrain, combined with the sled method or the adaptation angle method to achieve terrain matching tracking? "The performance of the 232H fire control radar on the old JH-7 is definitely not good enough, but the 1473 now developed for the third-generation aircraft or the 1472 radar used on the J-8C should be able to meet the requirements. Anyway, it is not needed for ultra-low-altitude penetration. Go to the radar to search for targets. As a flight control designer, this is obviously the most direct method he can think of. Although the original design of the 147x series radar was for anti-aircraft purposes, it is not difficult to add a youth version of the terrain tracking function to it. After all, it only requires collision avoidance, and it does not say that the terrain must be completely mapped. However, Yang Lin, who has dealt with weapon systems more often, immediately rejected this idea: Its possible to fly this way, but low-altitude penetration is originally about concealment. At this time, its not appropriate to turn on the nose radar in a big way... Im afraid its not appropriate? The emission angle of the nose search radar is too large. If there is another enemy aircraft in the sky, wouldnt everything be exposed when the radar warning receiver goes off? "Is there a better way? It is definitely not possible to integrate terrain tracking radar into a pod at present. Moreover, since users require the use of precision-guided weapons, they also need to consider carrying a laser-guided pod and an airborne The data transmission pod for ground-attack missiles is unlikely to have room for a third pod. ?Seeing that the atmosphere at the scene was a little too lively, Tang Changhong quickly calmed down the scene: "Comrade Xin Mao was right just now. After all, the JH-7A has two pilots, and the pressure during normal flight at ultra-low altitude is relatively not that great. Therefore, compared to the automated low-altitude navigation pod, we still have to pay attention to the most basic flight safety issues. According to feedback from basic JH-7 pilots, what they are most worried about is actually a sudden power failure during low-altitude flight. In terms of flight safety, I remember that the Chengdu 611 Institute used a technology that could predict engine surge in advance based on the air intake conditions during the testing of the Project 10 prototype. After discovering the risk of surge, we It will restrict the aircraft from continuing to make violent maneuvers and avoid the risk of surge. Comrade Xinmao. ?Tang Changhong looked at his deputy chief designer next to him: I have contacted Chief Engineer Song Wencong and Chief Engineer Yang Wei of the 611 Institute. They agreed that we would send a team of technicians to inspect and study. I am going to let you lead the team and stay in Chengdu for a while. ??Although various locations under the aviation industry system have been transformed into groups with branch company attributes, and there is some competition between them, in the final analysis, it is still a game of chess for the whole country. With such important technology, it is impossible to hide it and only use it for yourself. Gong Xinmao was stunned when his name was suddenly called. ?This technology sounds too good to be true. Especially for fighter-bombers that mainly fly at medium and low altitudes, once surge occurs, they often do not have as much time to respond as fighter jets. ?Coupled with the relatively ordinary ejection escape system of the JH-7, it can easily lead to a first-class accident involving aircraft crash and fatality. ??If surge can be detected and suppressed in advance, or even just delaying the occurrence of surge, it will be of great benefit to flight safety. So he immediately stood up and solemnly expressed his position: Yes! I will definitely learn this technology and bring it back! (End of this chapter) Chapter 538 French test Chapter 538 The Frenchs Temptation The other side. After the Singapore Air Show in 1998, Guillaume Le Maire, the leader of the French delegation, took a flight back to China alone without even waiting for all the exhibition equipment to be packed. Because of what he had experienced in the past few days, he had completely lost his patience in waiting. Due to various coincidences, France, which originally had great expectations, made little gains in the arms sales market. The new Rafale fighter jet is not favored by any country because it is still in the prototype stage and the price is astonishing. In the past, the Mirage 2000, which once occupied an important position in the international arms sales market, has been upgraded to the Mirage 2000-5 and even conducted a joint flight show with the Singapore Air Force. However, as an aircraft with small size and potential, The third generation of medium and light aircraft has finally declined. ? Indonesia and Malaysia, two countries with relatively stable economies after the Asian financial crisis, clearly favor the larger, heavier, and even cheaper Su-27 and Su-30. ??As for the extremely wealthy Singapore Air Force, as a loyal ally of the United States, the first choice is naturally F15 or F16. In short, it is impossible to focus on French planes. ??The Thai army has shown some interest in the Mirage 2000-5, but the economy, which bore the brunt of the financial crisis, is obviously no longer able to support its large army. ??The problem currently faced by the former is that the development progress of the M88 engine planned to be equipped is blocked. Although it has borrowed a lot of design from the F110 engine, its actual reliability and lifespan are problematic. ?Of course, the French military industry has a profound foundation after all, and the Waterloo at a single air show will not have any impact on the larger arms sales pattern. Because I have never been rich... ??French people, pull it. So these countries are generally more interested in China''s two improved MiG-21 fighter jets, and are obviously not the target customers of French equipment. ?Now that we have suddenly returned to poverty, it is difficult to maintain the current scale of equipment, and naturally we cannot spare the money to buy new ones. People without thought, he must worry about. But I definitely understand the truth. This sentence may not have been heard by Flamel. Army and naval equipment are not the French''s strengths. The task of completing this business naturally falls on the pride of France, which is the aviation industry. So, his thinking is very clear As for several other Southeast Asian countries They did not return to poverty. In a short period of time, the only equipment they can come up with that meets the requirements of "high enough influence" are Rafale fighter jets and NH90 helicopters. You must know that when the economic momentum was good a few years ago, the Thai army purchased nearly 60 F16A/B fighter jets, 4 new frigates, and even a light aircraft carrier in a very short period of time. The former may be even more important. However, considering that the reputation of French equipment in the traditional market, that is, West Asia and North Africa, cannot be restored in a short period of time, this failed effort to open up new markets is still a bit disappointing. Even after reducing the thrust by nearly 15%, the M88-2 is still plagued by reliability and failures. ?The top priority is to complete a few businesses with enough influence to stop the decline in public opinion and the market. In a nutshell To this end, the first few Rafale prototypes had to be temporarily equipped with imported F404 engines to test other subsystems. Obviously, there was no way to successfully enter service in a short period of time. It is impossible for the Chinese to have any unique research on turbofan engines, right? Flamel looked at the two photos in front of him and quickly put this unrealistic idea behind him. By contrast, as Kurt Jean Pierre said the other day Most of the problems faced by NH90 are not technical problems. ??If it can achieve the same quiet performance as China''s improved Dolphin, it will definitely be a killer in the 10-ton helicopter market. However, there are two huge obstacles facing Flamel. One is the close allies who are eagerly waiting to get a piece of the project. Second, the helicopter silent technology is at least currently only mastered by the Chinese, and the NH90 is, at least on paper, a military project. So he needs to find a way to convince the Ministry of National Defense and the President, so that these people who are not technical and are likely to be biased believe that they should cooperate with China on the helicopter project. Relatively speaking, the first problem is easier to solve. ?Eurocopter itself occupies the dominant position in the entire project. It just needs to act tougher as Pierre said before. So, after thinking about it all the way on the plane, Le Maire finally decided to start with the second question first. After determining the order in which to solve the problem, the next step is to think of specific solutions. Applying directly is definitely hopeless. Not only is it impossible to pass, but you may also be labeled as a Chinese spy. ?Although Flamel is not afraid of this, the less trouble the better. Therefore, after returning to the office, he immediately found his secretary. Caroline, help me collect the China-related activities in our country in recent months as soon as possible and make a list for me. ? ? In order to prepare for the Singapore Air Show, Le Maire has been away from France for nearly half a month. Coupled with the laborious preparation work in the early stage, he was somewhat out of touch with the current situation when he returned. The female secretarys eyes widened slightly: Anything related to China? ??Although China''s international influence cannot be said to be particularly large at the end of the 1990s, it is already a country with a population of 1.2 billion that is gradually opening up. Even for the sake of the market, official and unofficial exchanges between countries and China are extremely frequent every year. It is definitely not something that one person can collect casually. Caroline once began to think about whether she had offended the other party. Although she is a government employee and is not actually completely under the control of the client, it is still unpleasant to be put in small shoes. Well...its related to the aviation business, or something we can have some influence on. ??Le Maire thought for a moment, then narrowed the scope slightly. Caroline breathed a sigh of relief and nodded slightly: Okay, Ill hand it over to you as soon as possible. It should be said that Caroline was very efficient. That afternoon, a detailed summary table was placed on Le Maire''s desk. The latter was also a little stunned when he looked at the dozen or so densely packed pages in front of him. As the vice-president of the French Aerospace Industry Association, he didnt even know that there could be so many exchanges between the two parties. After the signing of the cooperation agreement last year, the number of unofficial exchanges between us and China increased rapidly. These are only the projects that I can count. Caroline explained: However, most of them have no actual content and are routine relationship maintenance activities. I have bolded the relatively important items, so you can pay special attention to them. ? Flamel opened the document in front of him and found that there were a few bold items scattered on each page. The proportion is not large. ?After all, the two parties are still in the early stages of cooperation. Although the cooperation is heating up quickly, mutual trust and understanding are not enough. It belongs to the stage where there are more retreat businesses. ?But this saved him a lot of trouble. The groundbreaking ceremony of Airbuss China General Assembly Base and the signing ceremony of a new batch of Airbus aircraft orders Airbus A330AIT test aircraft first flight ceremony CAAC/JAA Joint Icing Simulation Wind Tunnel Unveiling Ceremony Chinese and French air force pilots jointly train Airbus new supplier licensing issued After flipping through a few pages, there was indeed a lot of meaningful content, but nothing related to his purpose this time... was found. The French naval fleet visits East and Southeast Asia Flamel frowned when he saw this article: Why is this line marked in black? It doesnt seem to have anything to do with us. Because I have inquired through personal connections, the commander of this mission, Vice Admiral Laurie Vojour, is from your hometown, and I guess you may know him. As a secretary, you have a strong ability to communicate with each other in private. ?Especially for someone like Caroline, who is in her early 30s, has a rising career, has excellent appearance, and has a certain amount of experience, she often has quite exaggerated connections. Flamel''s eyes lit up and he sat up straight. Although we are not particularly familiar with each other, we were indeed classmates and have been in contact ever since. Is there any more detailed information about this visit? Yes, please wait a moment. Caroline lowered her head, pulled out a few pages of documents and reports from a thick folder held under her arm, and handed them to Flamel. Visiting 14 countries, the total effective itinerary after subtracting the road is 17 days, of which you plan to stay in China alone for 5 days? The latter looked at this schedule and almost felt stupid. "According to information from the Naval Staff, the main purpose of this trip is actually to promote relations with China. It''s just a trip all the way. If it only goes to one country, the purpose is a bit too obvious, and it is not good for Congress. Its so easy to explain that we added another 13 destinations. ?????????Le Maire thought about it and probably knew that this matter was because the navy and shipbuilding industry wanted to make up for the mistakes they had made. ??The Lafayette frigate procurement case a few years ago ended up in troubled waters, and neither the two countries nor the three parties involved were satisfied in the end. ???As a member of the Aerospace Industry Association, he will certainly not know the more details. However, considering that in the end, the French Shipbuilding Bureau was under pressure and decided to only deliver the hull with a power system, and also gave China a lot of compensation in some subsequent naval technical cooperation, so there were no serious consequences. Taking into account the current overall cooperation between the two parties, the atmosphere of this trip should not be particularly tense. So this is a good opportunity for Le Maire''s plan. ?Thinking of this, he turned the information to the next page: The visiting ship Jean Bart air defense destroyer, Geyue patrol frigate, Durance integrated supply ship (Its this Jean Bart, not that Jean Bart) It can be seen that the formation is not large in size, but its level is very high, and a lieutenant general was even sent to lead the formation. ??And more importantly, it is completely consistent with Le Maire''s next plan. Caroline, help me make an appointment with General Vojour, the sooner the better. Is it a business meeting? Or a private meeting? ?Caroline packed up the materials that Flamel had read on the table in front of her and held them in her arms again. The latter took off his glasses and thought briefly: For a private meeting, choose to book a cubicle in the behind-the-scenes restaurant after get off work on Friday. I know that many people in the Ministry of Defense like to discuss things there. (End of this chapter) Chapter 539 Let’s do some anti-submarine drills first Chapter 539 A wave of anti-submarine drills first The behind-the-scenes restaurant is located near the Palais Bourbon in the 7th arrondissement of Paris. At the beginning, it only existed as a high-end restaurant serving the upper class. However, because the environment is relatively private, not too far away from core institutions, and the high price sets a certain threshold for entry, it has gradually become a place for some middle- and high-level people to "hold small meetings" after get off work. ?After a few decades, the status of this restaurant has risen sharply, and it has basically reached the level of "no businessmen". ?Personnel in politics, business, and entertainment circles tend to talk about things they dont want to make public here. Correspondingly, the privacy and security inside the restaurant have also improved far beyond those of the past. It is said that no media has ever dug out useful information about this restaurant. Despite this, many reporters still like to squat nearby to see if they can catch any useful information. ?After get off work, Le Maire did not use his own driver, but asked Caroline to drive him to the door of the restaurant behind the scenes in a private car. What is going to happen next is suspected of exceeding authority. Although it is impossible for anyone to seize any evidence, the fewer people who know about it, the better. ?Of course, the more important point is that Caroline got the news about the fleet visit led by Vice Admiral Laurie Vojour, and even the detailed schedule. Lemel is not a fledgling bun. In this occasion, there is a bit abruptly coming to such a sentence, obviously not because there is nothing to find something. Ill wait for you in the parking lot on the east side of the street. For example, our association has recently prepared to establish a military aviation equipment management committee and is considering the specific composition of candidates. Its like dropping an acquaintance halfway along the way. ?Vice Admiral Vojour, who was also wearing casual clothes and a low-key look, was already sitting inside. Following the other party''s guidance, he quickly opened the private room door with a card. After meeting, the two first gave each other a warm hug. Judging from the remaining amount of coffee in front of me, I must have been waiting for a while. Flamel called out a series of numbers, and the staff pointed out the location of the private room to him. ?The lieutenant general wanted to blurt out something useless, but he realized something was wrong halfway through. Its okay, Guillaume. She was originally an insider. ??Although we dont meet often, we are still from the same hometown who are working hard in Paris, and it is absolutely impossible to be a stranger: Im sorry to be here a little late. I went to Singapore on a business trip and I have a lot of things to deal with when I come back. Good evening, Laurie. ??For a restaurant of this level and type, it is naturally the basic professional ethics not to ask the customers identity. As Flamel''s secretary, Caroline is technically a government employee and is not completely controlled by the latter, but both prosper and suffer losses at the same time, which is much more reliable than a driver who drives the same for everyone. Flamel slowly hung his hat, scarf and windbreaker on the coat rack, and then sat down opposite Vojour: Its not all useless things. Vaujour patted Flamel on the shoulder, indicating that he didn''t care: Its boring desk work, I understand. Isnt that still... Caroline dropped Flamel at the door of the hotel and drove away. But to imply something. What is this committee specifically responsible for? ??Wuruer poured coffee into the cup in front of the fellow villager and asked pretending to be casual. Its hard work to meet the needs of aviation companies and the military, and then be responsible for some quality supervision and equipment acceptance as a third party. Seeing the other party take the bait, Flamel immediately explained. Of course, Vojul would never believe this evaluation. Responsible for management and acceptance. Fools all know that this is the most lucrative position. ?Of course, the lieutenant general himself is an active soldier and holds a high official position, so it is definitely impossible for him to do it himself. But if you can arrange for your close confidants or even relatives... There is still a lot to be done. Of course, Vojour knew very well that it was impossible for Flamel to call him here specifically for charity. Although the two are from the same hometown, their relationship is not that good. ?However, in this situation, he would not be too naked to engage in a revolving door deal. So the scene froze for a moment. Seeing the Lieutenant General''s reaction, Flamel knew that his foreplay had been done well.????It''s time to get down to business. Laurie, I heard from friends in the media two days ago that you will take a fleet to visit East and Southeast Asia in a while? ?After the waiter rang the doorbell and came in to bring the dinner for two people, Flamel asked straight away. The visit itself is not a big secret, but the specific itinerary has not been made public. Thats right. Worure nodded helplessly: This is a real hard job. It will take nearly half a year including the distance. Fortunately, there is a big ship called Durance River in the formation. Otherwise, I dont know how I will spend these few months..." Young junior crew members generally like to go on ships and go on missions because they can get higher subsidies. But for a senior general of Wojru''s level, this little money no longer matters. ?This visit is not an important mission that attracts national attention. For this reason, leaving Paris, the center of power, for a long time is definitely not worth the gain. What is the specific schedule for the visit? Le Maires question is obviously a bit out of bounds. Logically speaking, the fleets sailing schedule should be kept secret. ?However, under the current circumstances, it is certainly impossible for Vojour to refuse to answer: Starting from the Port of Toulon, crossing the Suez Canal, visiting Egypt, then heading east along the Arabian Peninsula and the Indian Peninsula, first stopping at India and Bangladesh, then the eight ASEAN countries except Cambodia and Vietnam, then Japan, South Korea, and finally Go to China. Just a visit? Lemal''s tone was brisk, like a chat, and he couldn''t hear his attention from it. "Other countries are, and finally China. The above request is to conduct some surface activities with the Chinese Navy to enhance mutual trust between the two sides, but so far no specific arrangements have been determined." ??Wuruer said, taking a piece of snail meat out of the shell and stuffing it into his mouth: My adjutant is writing the specific visit plan. If nothing else, it will probably include crew football games, joint search and rescue exercises, and main gun target shooting. Its a clich..." Can you consider arranging a joint anti-submarine exercise? ????Le Maire did not go around in circles and said directly: Of course it doesnt need to be particularly complicated, just show off our navys anti-submarine capabilities. His idea is very simple. ??When he was in Singapore before, he once asked the exhibitors from China sideways if the improved dolphin helicopter was the active equipment of the Chinese army. The reply received is that the assault transport type on display has not yet entered service with the Chinese Army, but a prototype of the naval type using similar improvement ideas has been delivered to the navy for trial. ?According to Le Maires experience, the Chinese Navy is currently at a stage where it needs to demonstrate its military capabilities to outsiders. So, if such an exercise can be arranged, you will definitely have the opportunity to see the comparison between the original dolphin and the improved dolphin. Then he can find a reason to cooperate with China. ?Deciding on the specific content of the visit may sound like a big deal, but for Vojul it was just a matter of writing. Hiss... I wish you had said it earlier. He said in a somewhat pityful tone: The Jean Bart is a C70-class air defense ship. If you want to demonstrate its anti-submarine capabilities, it is best to use the F70 anti-submarine model No need. Flamel quickly shook his fork in mid-air: The anti-submarine helicopter on the F70 is a Big Lynx. We cannot use our resources to promote the British... ??Even though he said that, Wojruer on the opposite side quickly understood the implication: Are you going to take this opportunity to show off the performance of our helicopters, let the Chinese Navy have a better look at it, and also make an advertisement? Flamel almost choked with one sentence. He said in his heart that I really want people to gain knowledge, but I dont want Chinese people to... But its really a bit troublesome to explain it. So after thinking for a while, he nodded. Thats right, thats it. Thats easy to say. The lieutenant general had no doubt that he was there and immediately agreed to Flamels request: Although it still needs to be coordinated with the Chinese side, a simple anti-submarine exercise is not a sensitive project. I guess it wont be a big problem..." (End of this chapter) Chapter 540 AC139 helicopter, the key to general aviation! Chapter 540 AC139 helicopter, the key to general aviation! The other side. After chatting with Xu Yang that day, Chang Haonan immediately contacted Ding Gaoheng. ?Of course, the matter is too big to explain clearly in just a few sentences on the phone. Therefore, he spent a few more days writing a report on the entire research and development idea for GPS jamming equipment, and then found a time to send it to the Commission of Science, Technology and Industry for National Defense in person. Ding Gaohengs office is almost more familiar to Chang Haonan than home. Thisis the solution for GPS jamming equipment that you called me a few days ago to tell me about? When Ding Gaoheng received the report, which seemed to be dozens of pages long, he was stunned for a moment. Although he had seen the other party''s amazing ability to sort out ideas before when he read the "Testing and Evaluation Method of Aircraft Engine Inlet Distortion" also written by Chang Haonan. But that material was transferred to the Science and Technology Commission through a third party. In fact, no one knows how long it took Chang Haonan to write it. So the impact is not intuitive enough. This equipment can also be integrated and installed on aircraft or vehicles? Ding Gaoheng quickly took out his reading glasses from the drawer, put them on, and then opened the report he just got. After seeing the scenario for the GPS jammer combat mode, Ding Gaoheng''s eyes suddenly flashed. In fact, after the J-8C fighter jets were officially equipped with naval aviation, the first combat subject practiced by pilots was to use a radar with the ability to look down and shoot down combined with a semi-active radar-guided missile to intercept low-flying cruise missiles. It is used to simulate the response strategy when an imaginary enemy uses a submarine to launch a cruise missile attack on our coastal cities. At best, we can only use passive response strategies such as decentralized command, decentralized deployment, and enhanced camouflage to minimize losses when attacked. I later learned that it was a total of 13 Tomahawk missiles launched by the USS Normandy cruiser. It was also the first time that a cruise missile with a satellite positioning system was put into actual combat. It really gave us a long-term perspective..." Satellite positioning and satellite guidance have always been a concern for our country. It is enough to show that the People''s Liberation Army is worried about these long-range precision-guided weapons at this time. But what follows is self-explanatory. Ding Gaoheng''s attention was gradually attracted by the contents of the report, and he did not continue after saying this. Since then, combating cruise missiles and preventing precision guidance have become compulsory training for units at all levels of the Peoples Liberation Army Chang Haonan said as he took off his hat and scarf and put them aside, then sat on the sofa on the side of the office. "In order to ensure the confidence of the interference signal, this device has relatively strict requirements for the emission angle. In other words, the range of action is close to a cylinder, with a small area but a height close to infinite. In order to ensure the interference effect, it is best to be within a distance of The target is relatively close, and the interference is even implemented in advance. ??And if it is possible to interfere with the GPS system on which these weapons rely, even if it is only limited interference, it can greatly reduce the air defense pressure faced by the People''s Liberation Army and important coastal targets. ?While scanning the lines of text in front of him, he said with some emotion: "In August and September of 1995, when the Bosnian War was going on in the Balkan Peninsula, our foreign personnel stationed in Sarajevo saw with our own eyes that the missiles launched by the US military were hitting wherever they were pointed. In two warehouses next to each other, three missiles could Hitting one of them together, the other one was not damaged at all except for some shock waves..." There is indeed no such condition. ?Although the "New Three Attacks and Three Defenses" has been officially adopted as a systematic training content since 1995, in the absence of insufficient technical means, the effects that can be achieved by relying solely on subjective initiative are always relatively limited. As for resisting the attack... But this time, Ding Gaoheng clearly understood that this heavy report in his hand was written by Chang Haonan less than a week ago. Yes, but this is so thick because it contains a lot of explanations and derivation of algorithms and content related to ideas. Just take a look at the ten or so pages of the final summary. It will be mentioned later that, for example, for targets such as cruise missiles, the best way is to use aircraft to carry out accompanying interference during the flight of the missile, inputting wrong altitude and position information to the target, and induce the missile to crash to the ground or into the sea in advance. After saying these words, Ding Gaoheng nodded repeatedly. So, if installed on a vehicle, it can provide accompanying cover for high-value targets such as battlefields and command posts. It is equivalent to supporting another barrier behind the original last line of defense of small-caliber anti-aircraft guns. In terms of the current strength comparison, reducing air defense pressure is to save the lives of soldiers! ?The further he looked at the report, the more excited the expression on Ding Gaoheng''s face became, and his flipping movements became much brisker.??? In other words, what you need now is a military GPS positioning receiver? After a long time, Ding Gaoheng put down his report without finishing it. It seemed like he wanted to watch it again from the beginning. ?But I endured it. Not one. Chang Haonan shook his head: The jammer needs to receive and analyze the positioning signal sent by the GPS constellation, and then it can be translated through the algorithm mentioned in the report. Considering that we currently do not have the ability to reproduce U.S. military equipment as it is, we can only treat it as a black box for the time being, so... every jammer should need a military GPS positioning receiver. Ding Gaohengs originally joyful expression froze on his face Its hard enough to get one. Do you want to purchase it directly from the US military? It doesnt have to be a complete positioning terminal, such as weapons and equipment, or even satellite navigation modules on ammunition. In short, as long as there is a chip that can process the signal and be removed. ?Chang Haonan explained it in more detail. But the difficult problem facing Ding Gaoheng did not become much easier. "This kind of thing is definitely not something that our Science and Technology Commission can handle. I''ll report it to the relevant departments first and let the relevant departments pay attention to it." Ding Gaoheng scratched his head and sighed helplessly: "Fortunately, your algorithm should be a unique skill. Americans should not pay too much attention to signal receiving terminals. Although it is difficult, it is not impossible. But the output may be subject to some restrictions..." ?When he just read the report, his first thought was to equip each regiment and unit above the regiment in the army with a set of - If there really is a fight, bring the imaginary enemy to the same technical level as us, and then defeat them through rich experience! But now it seems a bit whimsical. Of course, something is better than nothing. ? Even if there are only a few devices, if they can appear in key locations, they can still play unexpected roles. ?So Ding Gaoheng quickly regained his energy. He put the information in front of him into the drawer, and then took out a folder from the filing cabinet behind him. Xiao Chang, there is one more thing. AgustaWestland, which has cooperated with us on the MA-60 project before, hopes to expand the scope of cooperation and jointly develop a new helicopter with Bingcheng Aircraft Industry Group. I communicated with Bingfei and they said that the new helicopter currently under development is part of the solution provided by your Torch Group, so this cooperation requires your nod and agreement to join the project. ?Chang Haonan stood up and took the folder with some surprise. As for the straight-9 improved project, he only pointed out the direction at the beginning, and did not interfere too much later. It all relied on Professor Liu Hongbo''s own performance. ?Looking at it now, it seems that a high-end helicopter giant like AgustaWestland can proactively seek cooperation, which seems to be a good performance... AC139 helicopter The Italians have not only decided on a name, they have even made renderings of the preliminary plan. A is Agusta, C is our China Aviation Industry Corporation, CAAC, AC139, which is jointly developed by Italy and China. Ding Gaoheng explained from the side: "The plan is for 15-18 seats, 6-7 tons, mainly for VIP transportation, medical rescue, search and rescue and other high-end markets. If we agree, the cooperation method will be based on the MA-60, and two final assembly lines will be built in China and Italy. lines, connecting the Asian and European and American markets respectively. In addition, if the technology meets the standards, the Italian side can ensure that the proportion of Chinese suppliers will not be less than 30%. What do you mean? (End of this chapter) Chapter 541 Even without me taking action, it’s already the era Chapter 541 Its already the peak of the era without even having to take action from me. ?At present, it is a critical stage for China Aviation Industry to build its reputation internationally. Therefore, as long as it is a cooperative R&D project that involves China''s technical participation, rather than simply paying for it and being taken advantage of, it is worth a try. ?Of course, the most basic checks still need to be done. Otherwise, it would be totally worth the loss to have an official partner of Air Havoc like DC10 or 737max. Although the "AC139" helicopter in the report is still very crude at first glance, and is still at the stage where the basic design plan has not yet been fully determined, from the renderings, design drafts, and performance indicators, the positioning It should be the AW139 helicopter from the previous life. ? Its just that in the original timeline, AgustaWestland first found Bell Helicopter to cooperate on this model. After failure, it established a joint venture with Westland in the United Kingdom to be responsible for the research and development and upgrade of this model. ??However, the British routinely used their talent as a troublemaker, and finally forced the Italians to have no choice but to spend a lot of money to directly acquire the Westland Company, which was already worthless, and finally stabilized. Fortunately, all the ups and downs will turn out to be ups and downs, but as time goes by, the AW series helicopters have become benchmark products in the field of civil helicopters around the world, especially in the high-end market. It must be admitted that Italians know luxury. Including general aviation and police aviation in China, a large number of this series of products have also been purchased. But if you are doing serious import and export business, you still need a license. "ah?" ??Furthermore, Torch Group is now a serious second-tier state-owned enterprise. It was a well-established department and bureau-level unit before de-administration and restructuring. It cannot always do business by doing business on the sidelines. Chang Haonan put the materials he had read on the coffee table, thought for a moment, raised his head and replied: However, in the Bingfei Groups improved Z-9 project, our group, as Party B, provides technical solutions, which is essentially equivalent to a first-tier supplier. As long as the ownership of the project is 50:50, I dont think there is a problem. Dont talk about qualifications, you dont even need to pay taxes... Especially for those who want to become international suppliers, the approval process is generally stricter. Torch Groups only previous product was the TORC Multiphysics software. ? Even if you only consider it from this perspective, choosing to cooperate will definitely make money. ??Just take this opportunity to get the relevant license. Lets just think of it as a ruthless NTR against the British and American father and son. It costs money anyway, so why not keep part of it in the country. In the end, Ding Gaoheng had already predicted his prediction: I have already contacted the Ministry of Foreign Economic and Trade Cooperation to resolve the issue of import and export qualifications for you. "If we want to continue to cooperate with AgustaWestland in this way, we may need an import and export qualification to become an international supplier..." Of course, in the current timeline, AgustaWestland has reached the target in one step and directly approached China Aviation Industry, which is more willing to cooperate, so the two prefixes "AB" and "AW" may never appear. Since the current regulations on the software industry are not clear enough, the act of selling computer software abroad has not yet been defined. Even Chang Haonan was surprised by this efficiency. You should know that even if you are given the green light all the way, you still have to follow the procedures. The foreign trade license was obtained without him, the general manager, even showing up? Seemingly seeing Chang Haonans doubts, Ding Gaoheng explained: "The approval has been passed. There are still some written procedures behind it. You may need to sign a few words after a while. In short, there is no problem with this cooperation at the policy and legal levels. As long as you are interested here, you can directly refer to the above Based on the experience, it will be settled soon. As for the specific time, its still up to you. The turbofan 10 and the die forging press are more important. Let Agusta and Bingfei cooperate with your timetable. Chang Haonan was stunned for a moment, and then realized that the improved Z-9 project was too small. Therefore, Ding Gaoheng probably didnt even know what was going on, so he habitually thought it was Chang Haonans masterpiece. But in fact he did not show up directly at all. Theres nothing wrong with me here. Chang Haonan waved his hand: The project in Bingcheng is under the responsibility of our groups Numerical Computing Business Department. I only provided some guidance at the beginning. Now that they have done a project themselves and have gained experience, they should be able to take charge on their own. "So as long as the Italians are ready, the project should be started as soon as possible. AgustaWestland has experience in this type of helicopter. If we come up with the noise reduction plan, the progress should be very fast. We can put 6-7 tons of this level of civilian market. If possible, we can also strive to obtain mutual recognition of airworthiness for helicopters like regional aircraft. ?According to AgustaWestlands plan, this model of helicopter will use a PT6C-67C engine, which will have some restrictions on military use. But in the future, the field of civil helicopters will also be quite broad. When engaging in industry, the core is to make money first. Especially in a large industry like aviation, investment is like a bottomless pit. If you only eat without vomiting for too long, you will inevitably feel pressured by your superiors decision-making. In the past two years, the state''s policies and funding for the aviation industry have become increasingly liberal. In addition to the fact that the Science and Technology Commission system has become stronger due to the Boeing-McDonnell Douglas merger, it is also largely because of the convincing achievements it has made. . Not to mention anything else, just the export of MA-60, the export of key aviation subsystems to Europe, and participation in the A330AIT test aircraft project as a core supplier are enough to silence some eager people. Are all your people already so powerful? In the past two years, Ding Gaoheng has become accustomed to various miracles brought by Chang Haonan. But this time, he obviously did not expect that the plot would turn out like this. ?This is no longer a model effect, but a driving effect! Our countrys technical personnel are not stupider than other peoples. In the past, it was just because there were not many projects, experience, knowledge, and exposure to advanced concepts. Chang Haonan naturally cannot brag directly: Now that the conditions are good and there are more projects, our capabilities will naturally increase. Look, when the Turbofan 10 project is completed, our country will also have a number of more such talents in the field of aviation development! Although it was a painted cake, Ding Gaoheng could even smell the fragrance of the cake. Fortunately, he didnt lose his temper because of this: Lets not talk about these things that are too far away. Even if you dont have to follow the project in person, you are the general manager of Torch Group after all, so you can still figure it out when we cooperate. Set a nearest time. (End of this chapter) Chapter 542 Let the Equipment Industry Department work around you! Chapter 542: Let the Equipment Industry Department work around you! ?Chang Haonan briefly recalled his schedule: I will hold a technical seminar on the overall design of the die forging press the day after tomorrow. After the seminar, I will have time this weekend. If Italians dont work on the weekend, then Monday will work. You...die forging press... Ding Gaoheng sat upright suddenly: Has the overall plan been finalized? The leaders suddenly sat upright, and Chang Haonan naturally adjusted his posture slightly: Die forging presses are relatively traditional industrial equipment, and the overall solutions are relatively mature. The final technical route chosen mainly depends on our current technical foundation. "For large-tonnage die forging presses, the plate and frame combined structure has relatively low requirements for material technology and component production levels. The main difficulty is that there are too many components and the design process is too complicated, but this is what I am good at. part." ?His words sounded calm, but it was different in Ding Gaoheng''s ears. The latter looked at Chang Haonan blankly, and after being silent for a while, he sighed: ??It''s just that the plan has not changed. The project team, which was originally a little cash-strapped, has become stronger due to the 420 million yuan in funding from the Ordnance Industry Group and the addition of hundreds of technical personnel. Therefore, although the joining of these new forces is for the purpose of learning, they also promote the project in a real way. At his current status, there is actually no need to overemphasize his importance and contribution. Of course, there is also management ability. Originally I didnt expect it to be pushed so fast, but the comrades in the weapons industry system did give a lot of help and contributed a lot... Instead, it expresses appreciation for others and better reflects the pattern. "This Equipment Industry Department was originally proposed by you. Moreover, even if it inherits part of the strength of the original Machinery Industry Department, it is still a brand-new department after all. It just needs a battle to stabilize the morale of the military and train the team. Therefore, the work of the entire department will be carried out around you. After giving the latter a reassurance, Ding Gaoheng changed the subject: "However, the organizational adjustment will be decided at a meeting next month. After all, the Equipment Industry Department is only a department-level unit, and it is impossible to completely inherit the functions of the original Ministry of Machinery Industry. Besides, such an action would be too obvious, and some People will definitely not agree." ?Although most of these people are not as professional as Yan Yongnian and others, they are still elites in the field of mechanical design. Immediately afterwards, Chang Haonan said seriously: Based on the previous idea, Chang Haonan first led a group of people to conduct pre-research under the name of "Large Die Forging Manufacturing Process Development" project, waiting for the manpower and funds from the Equipment Industry Department to transfer to formal research. At this point, he smiled somewhat self-deprecatingly: "As a result, you commandos just chewed off the hard bones..." In addition, at Jiang Zhong, we have basically completed the screening and screening of the original personnel, and have transferred some key members from several old third-tier factories. Production should be resumed soon. The die forging press must eventually be implemented into manufacturing. The structural parts involved in the plate and frame combined frame are many and complex. If they are all purchased according to the market-based process, it will be impossible to implement them all within five or six years. For a very large project, there is not much that actually requires "creativity". Most people only need to complete their work step by step. "Sigh...I was originally thinking that after the Equipment Industry Department is established next month, I will concentrate the resources of the entire department on your die forging press project to fight a tough battle." However, the design plan will be returned quickly, and the resources of the Equipment Industry Department are definitely still needed. So, after the design of the forging press is released, there must be a department that can be in charge of at least some of the core machinery manufacturing companies in the country to coordinate the production of the entire equipment to ensure the maximum efficiency of project advancement. Chang Haonan first quietly praised his colleagues in the weapons industry system. You dont have to worry about this. Ding Gaoheng waved his hand to signal Chang Haonan to relax: So, my idea is to focus on the big ones and let go of the small ones, and control and manage some enterprises and institutions that are involved in the lifeblood of the machinery manufacturing industry. Chang Haonan certainly understood the other partys implication: You need a list? Ding Gaoheng nodded, but immediately shook his head: Its a need, but its not just that simple. After a short pause, he continued to explain: After all, the Equipment Industry Department is only in the process of being established now, and it is our Science and Technology Commissions own people who are preparing to establish it. Therefore, how much power this department can seize in the end still needs to be determined during the meeting next month. "To be honest, I''m not completely sure of the specific results. So just having a directory list is not enough. It would be best to sort it according to importance and priority, or at least classify it, so that we can also use it during the bargaining process. Its very targeted and doesnt throw away the important parts. "Among these, I have asked the General Office of the Science and Technology Commission to contact the current Ministry of Machinery Industry for the general things. However, after the establishment of the Equipment Industry Department, the most priority and core task is the die forging press, so you''d better We can make a list of the companies and institutions you need, and we will deal with them with the highest priority when the time comes. Chang Haonan suddenly understood. However, the game at the conference level is not something he can directly intervene in for the time being. So he had to answer solemnly: Professor Yan and the others should know more about this. I will implement it during the meeting the day after tomorrow and hand over the results to you as soon as possible. Just as Factory Director Makarov could not complete the Varyag without the State Planning Commission and the Military Industrial Commission, without the unified management of the Ministry of Machinery Industry, the impact on many large-scale equipment projects will be fatal. The Equipment Industry Department is an important tool for Chang Haonan to try to reduce this impact. ?Furthermore, from the perspective of future generations, with the development and progress of the times, the connection between the national defense industry and the civilian industry has become deeper and deeper. ??The Commission of Science, Technology and Industry for National Defense, which is solely responsible for military industry functions, will also be reorganized into the Ministry of Industry and Information Technology with broader responsibilities. In fact, it has inherited the functions of the original Ministry of Machinery Industry, Ministry of Metallurgical Industry and Ministry of Information Industry. However, in the previous life, when the Ministry of Industry and Information Technology was established, the Ministry of Machinery Industry had been abolished for ten years. The old staff team, organizational structure and even files and documents have been lost. As a result, the Ministry of Industry and Information Technology could only play the role of "information" for a long time, while the functions related to "work" were absent for a long time. It has also become one of the important reasons for the long-term slow development of China''s machinery manufacturing industry. But now, if some fire can be reserved for the Ministry of Machinery Industry in the name of the Department of Equipment Industry, then there will be no need to restart the stove when the Commission of Science and Industry is reorganized into the Ministry of Industry and Information Technology. Even the functional authority of the original Ministry of Machinery Industry can be restored as a matter of course. ?Of course, it is impossible for Chang Haonan to directly mention this big game to anyone Its hard to tell Ding Gaoheng that the Commission of Science, Technology and Industry for National Defense will be gone in another ten years. So, the purpose can only be achieved through roundabout ways. By the way, theres one more thing. Ding Gaoheng was originally ready to end the conversation by saying a few more words, but after some hesitation, he decided to speak: Xiao Chang, what do you think of Comrade Lan Xinzhis ability? ?This somewhat out-of-the-box question made Chang Haonan unable to react for a while: Secretary Lan... I havent had many contacts with him, but my impression is that he is very straightforward and his ability should be pretty good. "Um" This evaluation obviously cannot be regarded as completely positive, and can only be regarded as a courtesy and error-free content. So after Ding Gaoheng pondered for a moment, he raised his head and continued: I will let Secretary Lan be responsible for handling some project matters with you during this period. Please pay attention to his performance and give me a more accurate evaluation when the time comes. After finishing speaking, maybe he was afraid that Chang Haonans good-natured nature would show up, so he emphasized another sentence: This matter is very serious, and you know it and I know it, so just say whatever you want, and...you dont need to be objective. The words had reached this point, and Chang Haonan also realized that this was going to be true. This means...understanding the organizational relationship? Ding Gaoheng hesitated this time, but finally made his meaning clear: If you think he is capable enough and you feel comfortable working with him, I am going to let him take charge of the Equipment Industry Department. ?Chang Haonan was shocked by himself for the first time. ??He has been to the Science and Technology Committee more frequently than going home in the past two years. Of course, he knows that there has always been talk internally that he is the so-called "non-staff deputy director." But it was always just a joke before. Even at the beginning, I once wondered if someone was unhappy with him and wanted to flatter him. Being seriously vigilant for some time. The result is now Ding Gaoheng directly asked for his opinions on the leadership candidates for departmental and bureau-level departments. ??And it seems that this opinion has a decisive influence... No, are you serious? (End of this chapter) Chapter 543 There are four solutions to this problem (4K large There are four solutions to this problem in Chapter 543 (4K large chapter) ?Shocked as a shock, Chang Haonan quickly realized that being able to ask for his opinion on such an important personnel appointment was definitely a sign of the organization''s high level of trust in him. ??Although Ding Gaoheng said that he planned to let Lan Xinzhi take charge of the Equipment Industry Department, the leaders of the second-level bureaus of ministries and commissions generally do not belong to the central management sequence. ??But this is not an ordinary job transfer after all, but a candidate for a new department leadership position spawned in a round of large-scale organizational adjustments. ??And this new department is also the focus of many parties'' confrontation. ??It is definitely not something that the director of the Science and Technology Commission can make casually. Including coming to Zhiqiu to ask his opinion on the candidates, I am afraid that is not the case, or at least it is not just what Ding Gaoheng meant. Okay, I will come up with the results before the conference. ?Chang Haonan replied seriously. After finalizing the matter involving organizational appointment, Ding Gaoheng''s expression relaxed a lot. After all, the matter of organizational adjustment and reform does mean walking on thin ice. Ding Gaoheng resumed his relaxed sitting posture, but did not move to other topics: When do you plan to complete this die forging press and put it into production? Chang Haonan''s name does not appear directly. To be honest, National Day gifts are both formalistic and morale-boosting. ?Now that I have said it, I dont have so many worries. To put it bluntly, his promotion of the aviation industry in the past two years has exceeded that of the previous two decades. ?In this context, if a heavy-duty die forging press, a powerful and important machine with few units in the world, can really be put into production, it will definitely be regarded as a first-class model. ?Of course, on the other hand, Chang Haonans multi-faceted reliability and age-beyond maturity have been proven many times by himself in the past two years. If resources are sufficient, our first priority plan is to strive to put the equipment into production before October 1999, which can also be regarded as a gift to the 50th anniversary of the National Day. However, the instructions from superiors were relatively vague, and they only mentioned that pay attention to soliciting the opinions of some core technical personnel in the appointment of key positions. ?Always using past achievements as bargaining chips seems a bit unconvincing. After all, this also affects the amount of resources that the die forging press can obtain after entering the production process. However, in the dark stage before dawn in 1999, it is obviously more inclined to the latter. ?For example, the aviation industrial park that has been confirmed to be located in Luzhou has taken up a lot of this years funding. Ding Gaoheng, who barely suppressed the shock in his heart and remained calm on the surface, gave up drinking water, put the cup back on the table, and calmly wiped the water stains that had just spilled on his shirt: At this point, perhaps because he was worried about putting too much pressure on Chang Haonan, he changed the subject again: However, this time point is a bit exaggerated. I wont talk about it for the time being, so dont put too much pressure on your side. Ensuring the smoothness of the project and the reliability of the equipment are the top priority. ?Of course, those forces that want to hinder Chinas industrial development cannot just give up. Xiao Chang, please be clear with me. Not to mention the economic benefits it brings by the way. Ding Gaohengs hand shook as he just picked up the thermos cup. It can be said to be far-sighted. The manufacturing industry is a typical high-investment, long-cycle industry, and it is impossible to see money back within one or two years. In the last life, during the National Day military parade in 1999, not only did the missiles that had just been tested and not yet finalized be brought out to support the scene, but the imported S300 anti-aircraft missiles were even given the name of Red Flag 15, pretending to look like No. 11 Engineering got the production line that way. Thats why Ding Gaoheng was a little confused before he spoke. In this era, China really needs confidence. At one time, it really had the effect of confusing the fake with the real thing. It would be best to create something new. Aviation and machinery manufacturing are, after all, two related but parallel industries. ?Then, there is reason to believe that even if the same person cannot create the same miracle in the field of mechanical industry, at least it will not be too bad. So much so that relevant urban legends are still circulating more than 20 years later. ??Although the Committee of Science, Technology and Industry has much more powers than before, the unified power and responsibilities also mean that there are many more places to spend money, even a lot of money. ?Especially through the Boeing-McDonnell Douglas merger, almost the entire civil aviation industry in China has been revitalized. ??Even though he had been mentally prepared before, he never expected that the time node set by Chang Haonan would be before the new century. This is also an important reason why Ding Gaoheng finally made up his mind to speak. So in terms of funds, not to mention tightness, at least not to the level of deep pockets. "The 50th anniversary gift... is a good title. If it can be done, it will definitely be great news for us, especially the Equipment Industry Department, and it can also stop many people''s mouths." Chang Haonan asked tentatively. Having said all that, Chang Haonan thought about it for a while and decided to tell the truth. Thatthe resources of the Equipment Industry Department In fact, it was not entirely his intention to seek advice from Chang Haonan on the selection of the leader of the Equipment Industry Department. I need to determine how many resources to allocate to the Equipment Industry Department in the past two years based on your timetable. Configure it according to the time node you mentioned. Under the premise of ensuring that the basic business of other departments is not affected, as long as our Science and Technology Commission system can get it, you will give priority to calling it! ? Ding Gaoheng made a judgment in the blink of an eye Intensify your investment in die forging presses, its worth it! Thats pretty much it for talking about the important things. He originally wanted to stay with Chang Haonan for lunch, but when he thought about the other party''s recent work arrangements, he decided to put it aside for the time being. Ding Gaoheng looked at Chang Haonan''s back as he was about to go out, then suddenly stopped him and added: "As for Secretary Lan, just report to me directly. There is no need to submit written materials." "clear." ?Similar to the situation with the turbofan 10, the design of the die forging press cannot be completely determined at once. After the overall R&D route is determined, there are still many specific technical details that need to be optimized. The technical seminar held by Chang Haonan is precisely to solve these problems. Mr. Chang, according to the method you instructed before, we have completed the model construction and meshing of the overall frame of the forging press. The static analysis of the equipment has also gone smoothly and no problems have been found. Yan Yongnian stood on the podium in the small conference room, pointed at the PPT on the curtain and introduced to Chang Haonan who was sitting at the head of the conference table: As you emphasized before, the first ten natural frequencies of the forging press are 0.40618, 0.43178, 0.64196 We checked the data of the same type of die forging presses abroad and found that the frequency under working conditions is around 0.3, and there is no risk of resonance Wait a minute. At this point, Chang Haonan suddenly raised his hand and signaled Yan Yongnian to pause: Of course its okay to refer to mature foreign data for analysis, but for this working frequency, it shouldnt be difficult for us to calculate it ourselves, right? Although I have no objection to the value of 0.3, there are some things that are best done by yourself. Facing Chang Haonans question, the nearly fifty-year-old full professor of Qinghua University felt a sense of oppression for the first time. He raised his hand to wipe the non-existent sweat on his forehead, and then explained in a weak voice: This is the problem we are facing now. After the static calculation, the original plan was to calculate the stress distribution of each structural member under working conditions, but we found that it is difficult to conduct stress analysis on the local composite load-bearing structure. "Our meshing was done using hexahedral elements in the TORC Multiphysics software. However, during the calculation process, the calculated local stresses were always too high. This indicates on the one hand the uneven transfer of force flow between the combined load-bearing components, and on the other hand On the one hand, it also shows that the deformation between contacting bodies is uncoordinated..." "Considering that fatigue damage is the main reason for the failure of heavy equipment, this problem must be quite fatal. If not solved, it can easily lead to gaps in the contact interface between components that come into contact with each other after being subjected to load, which will be fatal to the equipment. destroy" So we must first complete the optimization design, and then start calculating the dynamic data under working conditions, otherwise the calculated results will be meaningless... In fact, if we go by our previous work habits, we can determine the specific problem in such a short period of time, which can be said to be a pretty good achievement. But in Chang Haonan''s case, Yan Yongnian was nervous until the end of his explanation. Seats between parts in contact with each other Chang Haonan looked at the equivalent stress diagram of the C-shaped plate and the cross-key on Yan Yongnian''s PPT, lowered his head and made a note on the paper in front of him. In other words, there should be a problem with the modeling of the interference connection structure? ?Yan Yongnian and several other subsystem leaders looked at each other, and then nodded: "It should be that the contact between the various components of the die forging press is a three-dimensional contact problem, and there are uncertainties in the mechanical conditions of the contact surface. We have tried to use the test-error method to iterate normally, but the calculation efficiency is very low, and the convergence is not yet Difference" Obviously, they have thought about it and worked hard. It just failed. ?Chang Haonan stared at the computer screen, which was the setting program for calculations by Yan Yongnian and others. ?Stress is not concentrated. If it is a manufacturing problem, lets talk about it. If it is a design problem, it is definitely a huge hidden danger. After a period of silence, Lin Qingsong, who was seconded from the Northern Vehicle Research Institute, spoke again and explained: This is the most difficult problem in the entire design plan. If Chang can bring a solution to the next meeting, the subsequent optimization part should be very efficient. "No." Chang Haonan still didnt raise his head, just waved his hand: There is no need to hold a meeting next time. There are generally four solutions to this problem. As for which one to use, you can evaluate it yourself. "ah?" ??Lin Qingsong, who just wanted to find a place for Yan Yongnian to get off the stairs, was immediately dumbfounded. These are not the four ways to write the word fennel. You can know it by reading more books, but it is not of practical use yet. The problem of weak point cracking caused by uneven stress distribution is a huge problem not only in China but also around the world. Under normal circumstances, if the impact is not particularly large, you can only bite the bullet and replace parts more frequently. In any case, fatigue damage is not unusable in the first place, it is just a matter of lifespan. If the impact is large, then generally only targeted reinforcement will be needed. ?Including Lin Qingsongs own jobheavy vehicle designalso faces a similar situation. Each time it takes several years, or even longer, to slowly test and solve. As a result, Chang Haonan came up with four solutions... Chang Haonan signaled Yan Yongnian to return to his seat first, then walked to the podium, picked up a pointer and pointed at the equipment model on the curtain: "In the working state, a small closed-loop force cycle is formed in the upper part of the forging press by the C-shaped plate, cross key, large tie rod, and clamping beam. During the forging process, the force generated by the hydraulic cylinder acts on the upper plate beam and then It is passed to the C-shaped plate, then passed to the large tie rod, clamping beam, and finally returned to the C-shaped plate through the cross key. "So, the most important part here is the cooperation between the cross key and the C-shaped plate. The contact state between the two will not only affect the characteristics of the force flow transmission, but also affect the deformation of the whole machine in all directions. Influence." So the key point is to have a gentle transition in the combined structure so that stress and deformation can be transmitted smoothly and harmoniously. Having said this, he turned back and looked at the dozen or so people sitting below: At this point, approved? Everyone''s reaction was quick or slow, but basically everyone nodded to show they understood. Then the solution is accordingly. ?Chang Haonan pulled over the blackboard next to him and picked up a piece of chalk: "First, uneven interference can be set without changing the shape of any component, which will not weaken the strength of the component itself. As for the specific method, TORC Multiphysics provides a function called ''bonding''. You can glue two parts with different meshes together..." Here, as long as the interference setting satisfies (min)=pd(C1/E1+C2/E2)*10^3, where E1 and E2 are the elastic modulus of the contained component and the containing component material respectively. quantity" Second, based on the force flow analysis I just conducted, I modified the shape of the contact surface between the cross key and the C-shaped plate to reduce the displacement of the two components under pressure..." "Third, the gapping problem just mentioned is actually due to the additional moment generated by the preload force and the reaction force of the main cylinder. It can be considered to modify the lower part of the wedge key into a shape with a certain slope. To balance this additional moment..." The idea of ??the fourth method is similar to the third one, but it is achieved by changing the component structure... On the stage, Chang Haonans thinking became more and more clear. In the audience, everyone also followed his train of thought and wrote furiously. ?Of course, when I write, I have to write hard and fast. The idea can only be revisited later when we go back. Until two blackboards were filled with writing, Chang Haonan finally explained the four solutions he had just thought of. He turned around, originally wanting to ask everyone what they thought. But looking at the expressions of frowning and thinking, or at a loss, this question was not asked after all. There are some things that would be impolite to say. Fortunately, the people who can sit here are not ordinary people. The reason why I couldn''t follow the train of thought for a while was just because he talked too fast and jumpyly, rather than because I really couldn''t understand it at all. Go back and review more, you will always understand. Mr. Chang, why are you so skilled... A slightly younger technician looked at his notebook in front of him and let out a long sigh. Chang Haonan naturally couldn''t directly say that I was cheating, so he had to hold it in for a long time and replied: Perhaps its because I designed TORCMultiphysics (End of this chapter) Chapter 544 To break the blockade, we still need to use technology to speak Chapter 544 To break the blockade, we still need to use technology to speak After the seminar, Chang Haonan specially stayed with Yan Yongnian. Mr. Chang. The latter who was stopped alone suddenly had the feeling of dreaming back forty years ago, when he was in school and was asked by the teacher to answer questions, but he didn''t know the time at all. ?Hence the performance of being a little restless. Fortunately, Chang Haonan is not a real teacher, and he is not planning to conduct a "class test". Instead, after everyone else has left, get straight to the point: "Professor Yan, you know a lot about the mechanical industry system. You have participated in the manufacturing technology research of the old forging press project before. Can you estimate which domestic companies will be involved in producing our die forging press? and research institutions? Yan Yongnian breathed a sigh of relief when he heard that he was not asking about what he had just said. He nodded almost without thinking: "no problem." "Although many things are different now compared to when I did the research, during the years at Qinghua University, I have been paying attention to some units that were listed as key units in those years. I dare not say that they are too high, at least. The accuracy of 80% to 90% is still guaranteed. At this moment, the last trace of concern in his heart has disappeared. ?Even though the project team was disbanded and I was pushed out of my core position, I still persisted in the ideals of the year and started to do a lot of practical things. Hearing this question, Yan Yongnian sat upright on the ground: ?Chang Haonan couldn''t help but give a thumbs up to the older generation of scientists in his heart. Chang Haonan immediately took out his mobile phone and called Zhu Yadan who was waiting in the lounge below, and then said to Yan Yongnian: You know, soon, next month, this round of organizational adjustments will be deployed. The Science and Technology Commission cannot replicate the entire Ministry of Machinery Industry, and can only focus on the big ones and let go of the small ones. He originally thought that this matter would take ten days and a half. ?In terms of ability and performance, they were limited by the conditions of the year. They may not be particularly dazzling, but their spirit and spirit are definitely nothing to say. ?Chang Haonan was also overjoyed at this time. "Well." It turned out that people had already prepared it... In this era without surveillance video, Zhu Yadan gave full play to his skills. It doesnt take time. My research results and related information over the years are all kept at home. If you need them, I can go back and get them for you right away! After calming down his excitement a little, Chang Haonan immediately asked: You take my car and go back quickly. Its best to get it back before you get off work. So now I need to compile these units into a list. How long will it take to complete it? ?Although it is bound to be weakened, as long as the fire can be left, there is always hope of starting a prairie fire again. Since the Science and Technology Commission has prepared to this end, it is obviously really preparing to inherit some of the powers of the Ministry of Machinery Industry. not easy. What does it mean to have an elder in the family like a treasure? ?Just an hour and a half later, Yan Yongnian returned to the office with a cowhide briefcase that was quite imprinted of the times. Its all here, Mr. Chang, take a look. ?Chang Haonan solemnly took the briefcase with both hands and dug out several thick piles of materials. Some of the oldest drafts even have the letterhead of the National Machinery Industry Committee written on them. Yan Yongnian looked at Chang Haonans eyes lingering on the yellowed papers and explained: Part of it is still the manuscript of Mr. Shen. Later, after he retired from the Ministry of Machinery Industry, he gave it to me for preservation. ?Chang Haonan suddenly took a deep breath. ??????????????????????????? A sense of mission that "three generations of inheritance is in your hands" arises spontaneously. What do the different colored marks in this information mean? Chang Haonan pointed to the red, blue and black logo in a black leather notebook and asked Yan Yongnian. Black means that the situation of this unit is no different from when I did the survey. Blue means that this unit has made relatively great progress in technology and can provide higher standard parts and components. Red means that this unit no longer exists and another supplier of the same type needs to be found. The latters answer was very orderly. Obviously, as he just said, he has never stopped pursuing the die forging press over the years. Chang Haonan nodded with satisfaction: "Professor Yan, now that the design work of the forging press is nearing completion, you have to prepare. After the Equipment Industry Department is officially established, go to Jiangcheng Heavy Machinery Factory to prepare for the specific production and manufacturing work. Yan Yongnians eyes suddenly lit up. But he still seemed a little unsure, so he tentatively asked: Meaning... I will be responsible for manufacturing this part? Of course, you have project management experience and are familiar with relevant units of the mechanical industry system. You are the most suitable candidate to be directly responsible for equipment construction. Chang Haonan said as he put the information back into his briefcase. He had just called Lan Xinzhi, who would come over to pick it up and give it to Ding Gaoheng in a while. ?As for how much authority will ultimately be given to the Equipment Industry Department, it is currently beyond Chang Haonan''s control. All he can do is prepare. Yan Yongnian, who received a positive answer, stood up and said: I promise the organization that the production and manufacturing of die forging presses will be completed with high quality and efficiency! Chang Haonan next to him was startled by his sudden statement. He quickly stretched out his hand and pressed down, gesturing for the other person to sit down: Dont be too happy yet. I told you in advance that I have very strict schedule requirements, so the burden on your shoulders, Professor Yan, is not light. I am afraid that my burden is light, Mr. Chang, please give me instructions! ??Not only did the vaccination not dampen Yan Yongnian''s enthusiasm, but it made him even more excited, and he even started to speak his local accent. It is now March 1998. We have the resources of the entire Equipment Industry Department and strive to achieve at least trial production of the die forging press within 18 months. ?Chang Haonan told his timetable, and then continued: In order to ensure efficiency, on the premise that the core technology is independent, if there is no domestic supplier that meets the requirements for the time being, then parts and raw materials can be considered to be directly imported, and then gradually replaced with domestic products when they need to be replaced later. Yan Yongnian, who had just looked like he had seen a ghost, finally breathed a sigh of relief: In this case, there is hope in 18 months...but if we use foreign suppliers, the cost may be much higher. ?At this time, Chang Haonan, who was very wealthy, waved his hand directly: We are not short of money now, and as long as the equipment can be completed as soon as possible, even if we spend a little more money in the manufacturing stage, we can make it back quickly after it is put into production. At Chang Haonan''s current position, he has to consider more than just technical issues. ?Especially for a large countrys important equipment such as a heavy-duty die forging press, making it is even just the first step in a long march of thousands of miles. ? How to maximize the effectiveness of this equipment, which has cost a lot of money to develop, is a topic that requires continuous consideration. This is one of the reasons why Chang Haonan has been promoting aviation technology cooperation with European countries during this period. Because parts of large aircraft, especially structural parts, are the main products of die forging presses. Compared with tailor welding, forgings have absolute advantages in performance, cost and working hours. ? In the last generation, a considerable part of the Airbus A380s body structural parts had to be produced by Russias Verkhovsarda Titanium Plant. Since it is unlikely that China will be able to produce super-large aircraft of over 200 tons in a short period of time, it is obviously a good choice to use this equipment to make money from Europeans and accumulate experience in the processing and manufacturing of large forgings. Yan Yongnian, who was used to living a hard life, was immediately swayed by Chang Haonan''s momentum and nodded somewhat blankly. After a while, I finally came to my senses: Also, Mr. Chang, I have another question. After all, the heavy-duty die forging press is an influential project. So far, only Russia and France own hydraulic presses with over 60,000 tons. Will foreign companies block us to delay our production plan? Is there a blockade? Of course there will be one. ?Chang Haonan stood up and showed a meaningful smile: However, since we have mastered the core technology after all, they should know that in this case, choosing to import is just a means to improve efficiency by taking advantage of the international division of labor, and the blockade cannot really stop us. On the other hand, the so-called foreign countries are not a whole, they also have their own interests. So the technological blockadecan be broken. In fact, even a year ago, Chang Haonan would not have dared to say such a thing with such certainty. Because he was not sure at the time how the Wassenaar Agreement was being implemented in the late 1990s. But in 1997, too many things happened. From the beginning of the year, China and Europe cooperated to block Boeing''s acquisition of McDonnell Douglas, to the performance of Europeans actively seeking to purchase TORCH Multiphysics software after it came to the numerical simulation world with a crushing attitude, and then to the Italians actively approaching Bingcheng Aircraft Industry Group to request cooperation. All these factors have convinced Chang Haonan that imperialism is still a paper tiger. They only block you when you dont have the technology. Once you really have the skills, they will slide faster than the other... So, to break the blockade, it is not enough to rely on building relationships and doing public relations. In the end, technology has to speak for itself! (End of this chapter) Chapter 545 The agile Italian Chapter 545: The agile Italian Although AgustaWestland intends to conduct technical cooperation with Bingcheng Aircraft Industry Group, the prototype of the Zhi-9WY has been test-flying in Haojing, and about a year ago, China and Europe also signed the far-reaching agreement here. aviation industry cooperation agreement. So the Italians still chose to stay in this old place that they are relatively familiar with this time. ?Of course, also with some practical confirmation whether you really have something or if you are just bluffing. On the tarmac, Chang Haonan, who had just flown here earlier that morning, finally saw the helicopter that had fascinated Italians ??Although the underlying technology that completed the design plan came from Chang Haonan, this was indeed the first time for him to see the helicopter with his own eyes. After all, Liu Hongbo had been handling it before. At first glance, it looks a bit like Zhi 9WA/WZ in the previous life. Flat nose, photoelectric sighting equipment below, curved hanging beam that does not take up space in the cabin... ?However, there are indeed many differences in the details, especially the details of the main rotor and engine protective cover. The latter raised his eyes and looked over there: Mr. Cui and Mr. Guo, who else can they be? Although they come from the ice city in the north, it is known that northerners mainly rely on equipment to survive the winter. No, of course Im not talking about those three. Doing your own work well without delaying others is the greatest help to the organization. Hey, who is that hovering around the helicopter over there? How can... But this time the situation is different after all. He is just an ordinary engineer from Institute 602, and he knows his position very well. Generally speaking, Cui Wenxue, as general manager, will not be directly involved in specific technical issues such as test flights of new models. The latter raised his head again impatiently. In the hangar a little further away, a young engineer who was preparing data and materials on site raised his head and breathed into his frozen hands to keep them warm. Look carefully, all three of them are following another person! ?One of the shorter engineers touched the arm of his companion next to him and motioned him to look into the distance. Of course, this is also the basis for determining the quiet performance of this aircraft. ? Cui Wenxue, Guo Jingshan and Liu Hongbo gathered around Chang Haonan a little later and were introducing the basic performance of the helicopter to the latter. Then he looked at the screen again, ready to continue working. The first man patted his companion on the shoulder reluctantly: ?Hence, Haojing was not feeling well at the turn of February and March. ??When discussing cooperation with foreign colleagues, the top leader must come forward. Theres also Professor Liu who came before. Hes pretty awesome. He came up with the front fuselage and rotor plans for the new helicopter. You should have seen it when I held a technical seminar before. ?Of course, theres also a rainbow fart. ?Then the sound stopped suddenly. After a few seconds, he raised his glasses vigorously. This doesnt look like Mr. Liang ?The short man''s voice came from the side again. Mr. Liang naturally refers to Liang Zhuoping. If these three people can be followed behind, the first person who comes to mind must be the general manager of the Aviation Industry Corporation. But regardless of age or hair volume, it is obviously not the case. Hissit cant be Mr. Chang Haonan, right? "who?" The general manager of Torch Group, the super guy who developed the TORCH Multiphysics software, is said to be younger than the two of us. For two engineers at the most basic level, if they did not pay extra attention, the amount of information obtained in the late 1990s would not be very large. ?Especially when the Internet is not very popular, it is normal to not know what Chang Haonan looks like if you missed the few times Chang Haonan appeared on TV. Holy shit, are you so awesome? I said that our group has suddenly become enlightened during this period, and can come up with all kinds of good things...It turns out that we have invited such a god..." "Sigh... I wish I could be half as good as him, no, one-third as powerful..." "Hurry up and get to work, don''t think too much, you have no hope..." After a while of whispering, the two of them saw a few people in the distance walking towards the hangar and quickly fell silent. ?Not long after, two minibuses drove directly into the test flight area from the outfield along a lane that was rarely used, and finally stopped at the edge of the apron. ?The people who got off the car were naturally the Italian delegation who had just landed. ? This time, they did not transfer domestically, but took an Airbus A340 to fly directly from Rome to Haojing. It is naturally impossible for civil aviation aircraft to land directly at the airport of the flight test institute, so in the end we had to use cars to pick people up. Cui Wenxue, who had been prepared for a long time, took the lead to greet him. ?In the subsequent process of determining the specific cooperation plan, Chang Haonan, who has mastered the core technology and has a strong voice within the Science and Technology Commission, is naturally the absolute leader. But nominally, AgustaWestland is cooperating with the Bingfei Group, so Cui Wenxue is still responsible for these matters. ?Of course, Chang Haonan also enjoys his leisure time. He is not a person who particularly likes to interact with others. Just because he is too strong, he accidentally made a lot of connections... ?However, it is unexpected, but it is reasonable. Chang Haonan soon saw the familiar face of the leader in the Italian delegation. Rosie Colombo. ??After some useless pleasantries, the Italian''s attention was quickly attracted by the helicopter parked not far away. In fact, this Z-9WY has already been publicly displayed and flown at the Singapore Air Show. However, the European and American media did not pay much attention to the Chinese exhibition area, and Italy did not participate in the Singapore Air Show. Therefore, including Colombo, this was the first time for everyone in the delegation to see it up close. . Nico Gambelli, who was following Colombo, stepped forward and took a closer look at the helicopter in front of him. As the technical director of the 15-seat new helicopter project, he was invited to oversee the cooperation. To be fair, even if you just look at the surface of the plane, you can feel a simple atmosphere coming to your face. For an Italian who likes precision and luxury, this feeling is like someone putting green peppers into Roujiamo in front of Haojing people, which is very uncomfortable. He looked at Colombo next to him with a slightly suspicious look. ?Subjectively, he didnt quite believe that a helicopter with this kind of workmanship could be as quiet as the other party said. ?Chang Haonan and Cui Wenxue did not restrict the group of Italians from looking around. ?Just like some exams, you will fail even if you open the book. The main rotor of a helicopter needs to strike a balance between silence and efficiency, and it also needs to be designed to be coupled with the fuselage. The whole process requires a lot of experience and calculation skills. ?Let alone just looking at the airplane, even if Chang Haonan lent them Zhi 9WY''s design drawings, there was no way to transfer them to other designs as they were. I have seen artificial dolphins made in France, and at least the workmanship is much better than this one. The difference that can be noticed at a glance is mainly that the tip of the rotor is sharpened and swept, and the shape of the engine cover is weird. While speaking, Gambelli and Colombo retreated to a position far away from the helicopter, because the two test pilots had already entered the cabin and were starting the helicopter in preparation for a demonstration flight. To be honest, its hard for me to believe that such a helicopter can reach... Before he finished speaking, a gust of breeze blew from the direction of the tarmac. Obviously, this is the air wave caused by the rotation of the helicopter''s rotor. Because the distance is far enough, the wind is actually not too strong. ?Even the hat on your head will not be blown away. ??But the gentle breeze blew on Gambellis face, making him feel a bit of burning pain in his face The plane has already taken off, and the conversation he just had with Colombo was not even interrupted by the noise. Dr. Gambelli, Im sorry I didnt hear you clearly. What do you mean its hard to believe? Colombo did not mean to be sarcastic, he was really confused and did not hear clearly. "I said" Gambelli stiffened for a moment, but soon changed his words without changing his expression and without a beat: I said, its hard for me to believe that we didnt discover that the Chinese people are so advanced in helicopter design until now (End of this chapter) Chapter 546 I come, I see, I am conquered Chapter 546 I come, I see, I am conquered... ?Colombo felt that the sentence structure of Gambelli''s sentence was a bit strange, but because his main attention was on the sky, he didn''t think too much about it. He just shook his head and said in a determined tone: I have been in contact with the Chinese people since two years ago, when I was still at AgustaWestland. It was also here, but the object of our cooperation at that time was a propeller-driven passenger aircraft, like the ATR72. Im sure they didnt have such a high level of technology at that time. Gambelli looked over with some confusion: MA60, I know, it is our companys first fixed-wing product, but if their technical level was not up to par at the time, why should we choose to cooperate? As an engineer who specializes in the helicopter field, he can only have a vague understanding of the company''s newly established fixed-wing business unit. Specifically, after making sure that the other party''s existence would not affect one''s own status and the resources obtained, he stopped paying much attention to it. The situation is similar to this aircraft. Although everything else is average, its core competitiveness is very strong. It can save about 8% of fuel compared with passenger aircraft of the same class. This is what many airlines dream of. Colombo also lowered his head again as he spoke and rubbed his sore neck: Furthermore, their technological progress is very rapid. When I first came to China, when I saw the MA60, it looked very crude, with a lot of shadows of the Soviet An-24 transport aircraft on it. "But only half a year later, the other aircraft was completely different. In addition to the fuel economy card, they also installed new propellers and flight control systems, which reduced the noise in the cabin to the average vortex level. Fan airliner level. ?Chang Haonan directly stretched out his hand, signaling Gambelli to do whatever he wanted. About five minutes later, Gambelli got out of the cabin again, sweating all over in the early spring. ?This device can not only measure a simple decibel value, but also analyze the waveform of the sound to determine the proportion of each frequency band in the noise. The overall decibel level does not change much, but annoying pulsing sounds are almost completely eliminated. ? Even until now, he has not fully understood the other partys technical means to achieve low noise... The results of the instruments were similar to what his ears heard. ?Thinking of this, Gambelli rubbed his hands almost involuntarily, showing an eager expression. If a new technology has no disadvantages at all compared to existing technologies, it means that it is completely ahead of its time. ?The Dolphins ducted tail rotor is even safer. But emotionally, it was still difficult for him to convince himself. For the former, he relied on the good relationship he achieved with Huaxia during this project to promote higher-level cooperation between the two parties in the future, and he also got a wife by the way. ? Gambelli once again heightened the importance of this cooperation in his mind. ?Achieving active noise reduction by adjusting the phase difference of the propeller sounds simple in principle, but anyone with experience in engineering control knows that theory and practice are two different things. The final result is that this helicopter feels more like a small business jet when working. This will be more comfortable for passengers inside the cabin. Therefore, after the helicopter stopped and before the pilot shut down the engine, Gambelli quickly ran to Cui Wenxue and Chang Haonan not far away and asked if he could go to a nearby place while the aircraft was in working condition. have a look. Hearing this, Gambelli felt as if he had grasped the key point: In other words, thats when they started researching propeller noise reduction technology? ?Most of the noise falls within the higher range of human hearing, which is the sound of the turbine engine itself. It is another matter if it is really implemented. ?So now, he has begun to regard the other party as his core competitiveness. Helicopters are different from passenger planes. Normal working conditions include loading and unloading cargo or personnel during the engine startup process. Therefore, except for the vicinity of the tail rotor, there are no generally prohibited safety zones around the aircraft. But both from Colombos personal perspective and from AgustaWestlands perspective, it now seems that the bet has been won. Gambelli opened his mouth, but no words came out. Regarding the latter, the MA60, as a new model provided by a new supplier, has already received a total of more than 20 orders from Thailand and China without completing the finalization and certification process. Obviously, it is also a promising future. . This is a bit embarrassing to say. For people outside the cabin, the propagation distance of high-frequency noise is closer, which will also reduce the impact of low-flying helicopters on people on the ground. ? And they actually developed another method of reducing noise from noise sources at almost the same time. ? ? If he came here, his main idea was the same as before when he faced Bell Company or Westland Company, which was to simply find a benefactor to share the risk. ??Although this plane belonged to the Bingfei Group, theoretically the former should have the final say, but he still looked at Chang Haonan standing next to him. Mainly because I really dont know what to say. ?However, Colombo shook his head decisively: "That''s not true. The MA60''s noise reduction principle is to control the phase difference between the left and right propellers so that the mid- and low-frequency noises they emit cancel each other out. It is equivalent to some kind of active noise reduction measure, and it is only effective inside the cabin. Listening outside Its still noisy. ??Cui Wenxue can still figure out who is really in charge of this round of cooperation. ??If I could replicate the successful experience in the helicopter field... But Gambelli really couldnt understand it. The Zhi-9WY prototype quickly completed its scheduled two circles around the field and landed again on the tarmac. So this time, we must have worked **** noise sources such as the rotor and the fuselage. Intellectually, Gambelli already fully understands the value that this technology can bring. The latter was not polite. He opened the cabin door skillfully, took out a noise-testing device from his bag, and got in alone. But helicopters with a normal structure obviously do not have this possibility. The main rotor and tail rotor are hard coupled through the transmission mechanism, and there is no way to adjust the phase difference. Moreover, their noise levels are not at the same level and cannot be offset. No matter how you look at it, its a sure kill. The previous investment in MA60 was undoubtedly a gamble. Why Chinese? He has no prejudice against any country, but this is really not in line with scientific laws. ??The Chinese have had almost no achievements worth mentioning in the helicopter field before. Now come up and directly dump Wang Zha? Will this low-noise propeller have any problems with aerodynamic efficiency? Gambelli asked this question with extremely complicated emotions. He didn''t even know what answer he was expecting. On the one hand, he hopes that the opponent''s technology will show some shortcomings in at least some other aspects, because this means a "trade-off" rather than an all-round crushing. But on the other hand, he hopes to get a negative answer, because in any case, he has decided to apply the new technology to the new helicopter he is planning. Chang Haonan had already predicted that they would have similar problems. Because from the perspective of rotor design alone, efficiency and quietness are indeed a pair of contradictory properties. He looked at Liu Hongbo and Guo Jingshan who were standing not far behind him: Show Dr. Gambelli the aircrafts technical manual. Soon, a bilingual material in Chinese and English that had been prepared was handed over to Gambelli. ?There is even a murderous and heart-wrenching comparison between it and the original dolphin. ?The data is so detailed that it even includes engine output power curves. ?Of course, this is not a temporary production recently, but was used as a promotional material when I participated in the Singapore Air Show. ??Its just that the last few places that placed orders were all from small African countries, and they didnt even look at these things. ?? Just compared it with the naked eye with the AS365N1 next to it, and then signed and placed the order. It directly staged a drama that was forced to death by a fan Although the workmanship and lifespan are indeed a bit worse, it has more functions (armed), better performance (long hover time), and is cheaper. What kind of bicycle do you want? As a professional in the field of helicopter design, Gambelli naturally found the key data directly. The results are obvious. ?While the rotor itself did suffer some impact, the redesigned transmission system allowed more engine power to be efficiently delivered to the rotor end. In comparison, the efficiency reduction of about 3% is nothing to mention. It''s okay even to be regarded as a test error. As an aerospace engineer, Gambelli can certainly see the correlation between these data, and he is definitely not just writing it casually to deceive people. ?Furthermore, the test flight just now cannot be fake... Unbelievable How on earth did you do it? Gambelli asked directly to Chang Haonan behind him. ?This time he also saw that Cui Wenxue was not the one who could really make the decision in this cooperation. It was this young man who had been standing nearby inconspicuously before. "In general, the flow field characteristics of the rotor and fuselage assembly during flight are first calculated, and the focus is on capturing the shock waves and blade tip vortices, because when the rotor vibrates to emit pulse sounds, these two will also be induced. This flow state is then integrated to obtain the far-field sound pressure characteristics, and the sound field patterns generated by main rotors of different shapes and specifications can be calculated relatively accurately..." As for the more specific technical details here, our engineers from Torch Group and Bingfei Group will provide more detailed explanations after the cooperation between our two parties is reached. ?Chang Haonan''s answer is basically equivalent to Bolt saying that you can win the sprint gold medal as long as you take turns to move your left and right legs. ?Everyone knows the truth, but obviously not everyone can be as fast as him. Gambelli also knew that it was impossible to extract someone elses core technology here, so he turned to a more theoretical question: Relying on CFD calculations? How do you ensure the calculation accuracy of unstructured grids? After asking the question, he felt that this question might cause some ambiguity: "What I mean is that the finite volume method (FVM) can usually only achieve second-order effective accuracy in the field of compressible fluids. In the past, it was definitely enough to just calculate the aerodynamic efficiency, but if you calculate the sound field according to your idea, The error must be huge. We do not use FVM for CFD calculations, because it is theoretically impossible for FVM to achieve high-precision numerical formats for unstructured grids. ?Chang Haonan replied with a smile. ?While the two were talking, members of the Italian delegation who had just retreated to a distance gradually gathered around. ?Hence, he raised his voice slightly to ensure that others besides Gambelli could hear. In terms of high-precision finite element calculations, there are some specialized techniques used to solve problems such as numerical oscillations or windward physical properties, so calculation accuracy and calculation efficiency can be guaranteed at the same time. This is also the latest research result of our Torch Group in the field of numerical computing. While speaking, Chang Haonan turned slightly and glanced at the circle of Italians around him. Sure enough, the expressions in several of them''s eyes changed immediately. In fact, he had known for a long time that the delegation sent by Italy this time was not just members of the Agusta Company. The words just mentioned were addressed to this group of people. The group stayed in the outfield until lunch time. When there are foreign guests, even from the perspective of face, it is impossible to take everyone to eat lunch as usual. When leaving, Cui Wenxue slowed down a few steps and came to Chang Haonan''s side. I never thought that one day we would be able to convince these Europeans. He has been working in Bingcheng before and has not experienced the negotiation last year, so it is normal to say this. Chang Haonan also said in a half-joking tone: This time the Italians can say, I come, I see, I am conquered ? Cui Wenxue was stunned for a moment, and then he realized that this was a reference to Caesar''s famous quote, and he also started laughing. "but." After the brief joke, Chang Haonan said seriously: It must be admitted that in traditional industries, especially in the field of processing and manufacturing, they started too early. Even if we catch up, it is almost impossible to completely close the gap in the short term, not to mention patent barriers. So this time, in addition to jointly developing a new model of helicopter, I am also considering expanding the scope and depth of cooperation, at least to attract several other Italian companies that came with Agusta! ?His time is quite valuable now. It would be a waste if he flew to Haojing just for one thing. Even though we are here, we still need to produce more results. Just as he said to Yan Yongnian two days ago. Technological blockade can be broken. ??The Italians may not be as well-known as Germany and Switzerland in the field of machinery manufacturing, but in fact the level is very high and the scale is second only to Germany in Europe. Hence, we can take this opportunity to open a breakthrough among EU countries. ??Cui Wenxu, as the general manager of Bingfei Group, had never thought about it so deeply before. ??But since Chang Haonan was talking about this, he definitely had to express his position: "Mr. Chang, I will report to you the details of the negotiations at that time!" (End of this chapter) Chapter 547 A joint venture, but not a comprador Chapter 547: Joint venture, but not comprador After all, Torch Group is nominally a supplier, so Chang Haonan certainly cannot directly participate in the negotiations between Bingfei Group and AgustaWestland. Actually, he doesnt have as much time and energy now as he did last year to personally battle with others about various details. Under normal circumstances, it is good to set a general direction, and more specific operations can be left to other people. ??Anyway, the design patent for the helicopters low-noise rotor is in the hands of Torch Group, which means that it has the final say and final decision-making power anyway. What he is more interested in are actually several other Italian companies that came with Agusta. They came to China with no specific purpose. To put it simply, they were looking for business opportunities. There is no other way. Chinese people actually rely heavily on inertia when doing business with foreign countries, especially in the first ten or twenty years after the reform and opening up. ?Whether it was a pre-planned plan or a coincidence, Germany and Japan seized the time at the turn of the 1970s and 1980s, thus taking advantage of the dividends in the following decades. It is difficult to quantify how much impact this kind of thing will have on international exchanges, but what Chang Haonan knows is that in the future foreign acquisitions of Chinese companies, Italy will be the least obstructed. When he talked about Torch Groups exclusive technology in finite element calculations, several peoples eyes immediately became hot. So this company is most likely another company. However, for Chang Haonan, who has the knowledge of twenty years ahead of his time, these businessmen from Southern Europe are indeed very good partners. ?? is a company specializing in high-precision CNC machine tools. ? So Chang Haonan pretended to be steady and opened the information that Lin Hai brought to him, and soon found the C.B. Ferrari company. Even until the time before Chang Haonan was reborn, the products and companies of these two countries still had a filter in the minds of many Chinese people. So, after lunch that day, Chang Haonan went to Lin Hai, the deputy director of the International Cooperation Department of the Committee of Science and Technology and Industry, who was accompanying him, and asked for a specific list of members of the Italian delegation. Chang Haonan was stunned when he heard the company name. The Italians missed that window of time, and by the time they reacted, there were only scraps left. So its absolutely right to plan ahead now. ?Lin Hai handed the information Chang Haonan wanted to the latter, and then reported: He originally wanted to find a lucky person among them and induce him. Mr. Chang, a member of the Italian delegation, Mr. Mattia Chiravadi, the representative of C.B. Ferrari, just found me and wants to meet with you in private. But he knew that Ferrari, which makes sports cars, should only be a brand under the Fiat Group, and it has already cooperated with Jinling Motors. In the original timeline, they ultimately failed to replace Japan and Germany on the Chinese side. On the one hand, it is clear who is more likely to make concessions between a country that is eager to do business and open up its market and a country that has made money in China for twenty years. On the other hand, Italy is known as the "China of Europe". Although the two countries are thousands of miles (km) apart geographically, they have some similarities in cultural customs. Hence, he is very sure that quite a few of them have the intention to cooperate with him. As a result, the initiative shown by the other party was far beyond expectations. When visiting the helicopter in the morning, Chang Haonan had already deliberately tested it. It seems to have little to do with Ferrari in the automotive world. As for the technology of cooperation, there must be some. ?In the process of developing heavy-duty die forging presses, many patents were generated to optimize the machine tool structure and processing methods based on numerical calculations. ?However, because the Chinese machine tool industry lags far behind in more basic areas such as topology optimization, tool life and positioning accuracy, his patents could not be used for a while. It can be used as a bargaining chip for cooperation. ?Thinking of this, Chang Haonan closed the document in his hand, raised his head and said to Lin Hai, who had been waiting beside him: No problem, lets find a conference room nearby in No. 603. Its best if its just the two of us. It turns out that Italians can escape the free-spirited stereotype as long as there is business. Soon, Chang Haonan met Mattia Chiravadi in a small but private conference room. The two of them actually had relatively close contact when they were in the outfield, but the late winter in Hojing was not very warm after all, so everyone covered themselves up tightly at that time. ?So, when they met again, the two people were almost simultaneously shocked by each other''s age. ?The first thoughts that flashed through my mind were: Why is he so young? Fortunately, both of them have been through many battles and have rich experience, so they no longer easily show their inner activities on their faces. ?So after just an opening remark of compliments and compliments, we quickly got to the point. ?However, the content at the beginning cannot be said to be completely meaningless. At least Chang Haonan knows that this C.B. Ferrari company is a combination of three surnames, and the Ferrari among them is Giuseppe Ferrari, which just happens to have the same name as Enzo Ferrari. Mattia Chiravardi is the son of another company founder, Augustus Chiravardi. Its no wonder that he has reached a high position in the company at such a young age. "Dr. Chang, when I was outside, I heard you and Dr. Gambelli say that your company can solve the problem of unstructured mesh generation efficiency in high-precision finite element calculations and the strong divergence caused by numerical oscillations? " Chiravadi is not going to keep practicing Tai Chi, but will go straight to the point. In theory, you cannot add a doctorate title when you are studying for a Ph.D., but don''t slap the smiling face. In addition, with Chang Haonan''s current situation, normal people would not think that he is at risk of not graduating, so in many cases, this title is directly Added to the loan. Thats right. Chang Haonan nodded: "This involves a brand-new grid generation method. Our company currently has nearly a hundred patents in related application fields and is the world''s leading solution provider. If you need it, you can go to Torch Group Contact our Numerical Computing Business Department on the official website. ?According to international practice, algorithms as rules and methods of intellectual activities cannot be directly patented. Therefore, many of Torch Groups patents rely on TORC Multiphysics software and are registered in some specific application fields. Having said that, Chang Haonan knew that if the purpose of the other party''s trip was just to find Torch Group to solve technical problems in the field of numerical calculation, then there was no need to come over specifically to find him. What I just said was just a hard-to-get tactic. Sure enough, Chiravadi, who saw Chang Haonan''s business-like appearance, further clarified his purpose: Dr. Chang, our companys next-generation five-axis linkage machining center plans to use a full linear motor driver and a new honeycomb structure to increase the tool feed speed and achieve quick-release and quick-change capabilities for the machine tool spindle. ??????????????????????????????????????????????????????????????????????????????????????????????????????????????????? Chang Haonan, he almost couldn''t hold back his laughter when he heard this. He quickly lowered his head and took a sip of water to keep himself from losing his composure Its almost like I fell asleep on my pillow. These two requirements coincide with a batch of new technologies recently developed by Torch Group. After a slight pause, he forced himself to answer calmly: Digital simulation of machine tool structure and machining process is indeed what we are best at and have a relatively rich number of patents. I think if the conditions are right, we can definitely cooperate in this area. The words are very clear: if the conditions are right. ?This is a hint that the other party can make an offer. Chiravadi certainly understands: We hope to obtain exclusive rights to use this technology within the EU. After saying the request, he stared at Chang Haonan and paused deliberately. But he did not see any emotional fluctuations on the latter''s face. ?Hence, Chiravadi, who was a little unsure of the details, directly used a trick: "As a condition, after the new MCL85 vertical machining center and MOL85 horizontal machining center are put into production, we will provide your company with the exclusive agency rights for these two models throughout Asia in the form of a joint venture, and Supply at a real price that does not exceed 20% of the cost price, and the account price can fluctuate by 10% on this basis. Of course, all models of machine tools involved will provide fully open permissions and will not restrict any functions or usage scenarios. How does Dr. Chang feel about this condition? ??Although the other party spoke in English, Chang Haonan could still hear extreme confidence in his tone. Obviously, in Chiravadi''s view, the situation is already certain, and he is just waiting for Chang Haonan''s nod. . It must be admitted that the other party definitely did his homework before coming to China. You know, that is the exclusive agency right throughout Asia. In other words, in the future, all Asian countries that want to purchase machine tool equipment or after-sales services from C.B. Ferrari can only go to the joint venture established by Torch and C.B. Ferrari. ? Even the Italian parent company cannot directly conduct sales within Asia. And its still available at super low prices. High-precision machine tools, the cost price will increase by 20%. Its almost like giving it away for free. As for the 10% between the account price and the actual price, let alone... I have to say that this condition is indeed in line with the appetite of Chinese enterprises in this era. As a dealer, you dont even need to invest in a factory, as long as you have a decent office location. Then you place an order with a certain customer according to the customer''s requirements, and you can make huge profits from the middle. Even, this move can be just a procedural one. Just send the equipment directly to the customer. You can make money just by lying down. ??And if Chang Haonan is more immoral, he can even use Torch Group''s influence in China''s aviation industry system to make all China''s aviation manufacturing companies use C.B. Ferrari''s products. You must know that in the past, China could not buy such high-precision machine tools with unlimited functions. ?By doing this, not only would there be no risk, but it would also be a great achievement... ?Its no wonder Chiravadi feels he can handle things stably. It would not be unusual for someone else to just kneel and lick, let alone nod. Its a pity that what he met today was the Torch Group. Chang Haonan has no prejudice against establishing a joint venture, but the "cooperation" method proposed by the other party is too comprador. If it really wants to agree to this kind of cooperation, although the Torch Group can make a lot of money in a short period of time, and it can also take the opportunity to let the whole of China use advanced equipment that was unimaginable in the past, but for China''s industrial development itself, But it doesn''t have much motivating effect. This is to give up the basics and pursue the last. ?This kind of money is relatively hot to hold. Therefore, after deliberately pretending to think deeply, Chang Haonan shook his head in Chiravadis surprised eyes: Mr. Chiravadi, I support the idea of ??establishing a joint venture, but I cannot agree with the cooperation method you just mentioned. Providing exclusive rights to use patents and technologies is not in line with our companys business philosophy and is not conducive to fair competition in the machine tool industry. ?Chang Haonan had a high-sounding reason to stop Chiravadi. But immediately afterwards, the former performed another trick: However, we can change the way of cooperation. "The form of establishing a joint venture remains unchanged, but for the new machining center you just mentioned, both of us will jointly invest capital and technology to conduct joint research and development with a 50:50 ownership ratio. After the research and development is completed, it will be developed separately in China and Italy. in production." In this way, since the machine tool equipment itself contains the intellectual property rights of our Torch Group, it will naturally form an exclusive right to use it. It can be the only one in the world, not to mention the EU... What does Mr. Chiravadi think? (End of this chapter) Chapter 548 Layout: Two peaches kill three soldiers Chapter 548 Layout: Two peaches kill three soldiers Chang Haonan''s move is equivalent to completely subverting the cooperation model proposed by Chiravadi, except for the establishment of a joint venture. Such a huge amount of information makes it impossible for the latter to make a decision in a short time. After all, unlike the Torch Group, which is basically equivalent to Chang Haonans one-spoken voice, although C.B. Ferrari is small with only a few hundred people, it cannot be decided by one person. Even just judging from the company name, this is a three-person voting management model. Chiravadis first reaction was actually confusion. ??He is confident that before coming to China on this trip, he has seen many successful cases of other companies entering the Chinese market in the past, and is familiar with the preferences of Chinese companies. ?Even though Chiravadis initial condition seems like a loss, in fact, in the long run, the benefits are definitely greater. The patented technologies held by Torch Group can be regarded as advanced content in the development of machine tools. But Huaxias shortcomings in the field of mechanical processing actually lie in the underlying basic content. It is equivalent to a science and technology tree. The front content is not clicked, but the back content is lit up first. However, if Chang Haonans thinking is followed, the property rights of this series of products will be in the joint venture established by the two, rather than C.B. Ferrari itself. ??The cooperation model proposed by Chang Haonan is relatively "normal". Chirawadi is 100% sure that no German or Swiss counterpart would be able to agree to the conditions proposed by Chang Haonan, because they already occupy a very important market share in China. In other words, even if Torch Group has advanced technology, it will not be able to build high-precision machine tools in a short time. It will inevitably bring some restrictions to the company''s future development. ?Its not even a question of negotiating strategy. "So, I can''t give you an accurate answer now. I need to go back and consult our two partners for their opinions." At that time, even if you lose the distribution rights in the Asian market to Torch Group, you will still be able to make a lot of money. ?In this case, C.B. Ferrari''s obtaining the exclusive patent rights within the EU is equivalent to gaining a single and absolute leading advantage in the world. After all, in Chiravadis opinion, Chinas state-owned enterprises like Torch Group should be behemoths with tens or even hundreds of thousands of people. Compared with competing products, the processing efficiency can be increased by as much as 30-40% without affecting accuracy. Combined with digital simulation technology, it can greatly reduce the difficulty of training machine tool operators. ?However, the idea is wonderful, but the actual implementation fails. ?As soon as I got up, I met a young man who didn''t have martial ethics and completely blocked his attack. So, he decided to delay it a little: "Dr. Chang''s conditions are a bit different from our company''s previous plans. You know, this is a difference in the cooperation route, not just a difference in specific conditions." It can quickly reverse the company''s disadvantageous position in competing with its peers, and even achieve absolute dominance in a segmented field. ? Among other things, their planned ML series, which is an advanced machining center equipped with linear motors, torque motors and full-process simulation of the machining process, will be the company''s flagship product in the next 15-20 years. As for the machine tool industry in Japan, South Korea and North America, Chiravadi honestly has never paid much attention to it. ?For a small, semi-family-owned small business with no plans to go public, this is indeed a risk that is easily out of control. Of course it is not a loss for C.B. Ferrari, but this is equivalent to being deeply bound to the Torch Group in the future. Furthermore, in the 1990s, even within the industry, there was a considerable delay in the dissemination of information. But the opponent is not playing on the same track as him at all... C.B. Ferrari was able to get this news because the aviation industry between the two countries has already carried out in-depth cooperation by chance. Other countries do not have this condition, and they may not know that a start-up Chinese company like Torch Group has core technologies that are very critical to the machine tool industry. Even if you have heard of it, you may not take it seriously. So currently Chiravadi and Chang Haonan probably belong to a situation where they need each other, Of course, after all, the establishment of a joint venture is a milestone event for both you and us, and it does require careful consideration. ?Chang Haonan also knew that he couldn''t be too impatient at this time. Before ending this conversation, he specially left a hook to lead to the next conversation: "I know that 4 years ago, your company developed the first M series machining center specifically for processing generator blades. You should be very clear that our production needs for blades and blisks will skyrocket in the future. If we If cooperation can be achieved between them, there will be great potential in the Chinese market. "Not only that, I know that your company is facing great competitive pressure in the European Union and even in Italy. I can tell you the truth. Just like this time, although it is obviously between Bingfei Group and Agusta Cooperation among other parties, but our Torch Group is the core supplier and has a high say in the project..." This statement has already been made clear. Even if Chiravadi doesnt know Chang Haonans status in the Chinese aviation industry system, he should know it by asking Colombo after he returns. ??If there is a machine tool that is truly produced by a Chinese joint venture, and a considerable part of the core patents are provided by Torch Group, it will be a surefire success in this field. Moreover, as the Torch Groups influence increases on an international scale, this effect can even extend to the EU in reverse. What is a truly international enterprise? jpg In short, its just one sentence. Hang around with me and youll have meat to eat. ?While sending Chiravadi out of the conference room, Chang Haonan could even feel that he was trying to convince himself to agree to the conditions just now. ?It''s just that the other party is also experienced and knows that the party that shows anxiety first in the negotiation will definitely suffer a loss, so it is still tense. So he was going to do something more and finally give the other person a push. After thinking for a while, Chang Haonan called Lin Hai over again, then pointed to a page in the previous document and said: Director Lin, please help me contact another company in the Italian delegation, the FTP company. Also, you can bring a few more people with you this time to make the formation a little more formal. Its best if other people who come with them can also notice you. ?Lin Hai quickly stood up, took the information from Chang Haonan, and quickly browsed the contents: "Mr. Chang, this FTP group probably has no intention of in-depth cooperation with us. It is just preparing to sell products. Just this afternoon, they have already held two meetings with the leaders of the Luzhou Large Aircraft Industrial Park. But I heard that they are very sincere and say that they can open up the first-level precision authority. As the second-in-command of the International Cooperation Department, he was obviously in control of what happened this afternoon. I know that the selling point of FTP Groups products is that it can automatically correct and compensate for the mechanical geometric errors of machine tools, and reduce standby time and maintenance costs. These are all things accumulated by long-term production data and are not the same development path as our technology. ?Before Chang Haonan was reborn, he had seen FTP company''s products at Factory 132, but they were just limited-function versions. But even so, it is still a very popular high-end product. Then...you mean... ?Lin Hai asked hesitantly. Chang Haonan waved his hand: It doesnt matter whether FTP is willing to cooperate with us or not, as long as we show that we are talking. C.B. Ferrari is now convinced that our current basic technical level is not good enough, and we cannot build machine tools with good enough foundation on our own, so we want to continue to push. "This idea is indeed correct, but they have to realize that there are many companies in the world that can build good machine tools, but the technology in the hands of Torch Group and the size of the Chinese market are unique. After this village , but this store no longer exists. ?This answer immediately confused Lin Hai, and it took him a while to react: Mr. Chang, you mean that you and C.B. Ferrari have just started discussing specific cooperation content? ??He originally thought that the meeting between the two parties this afternoon would be just a formality, at most confirming the other party''s intention to cooperate, and there would be no real content. ??As a result, Chang Haonan''s character as a quick shooter was highlighted, and even the cooperation mode was almost finalized. C.B. Ferrari is similar to our Torch Group. They are both small and sophisticated companies with only 200 to 300 people. Compared with those big manufacturers, they are naturally much more flexible. Chang Haonan patiently explained: The current idea is to set up a joint venture, where both parties will jointly contribute money and technology to develop a new series of high-precision, high-efficiency five-axis machining centers. However, the other party is still a little reserved right now, so we need some sense of crisis to help them make a decision quickly. Two sentences, an understatement. ?But Lin Hai''s pupils trembled when he heard this, and he almost couldn''t hold his breath. This five-axis machining center, Chang Haonan said, is like buying cabbage on the roadside. You know, this thing was something that China couldn''t even buy before. Whats more, its joint research and development with independent property rights. For a moment it felt like a dream. What made Lin Hai feel more open-minded was Chang Haonan''s overall layout. After all, he works in the International Cooperation Department and knows a thing or two about the foreign cooperation projects of the Science and Technology Commission system in the past two years. It can even be said that he saw with his own eyes that China Aviation Industry, which could only participate in some leftover projects, was brought step by step to an important position in the international industrial chain by Chang Haonan, just like playing chess. Now, the influence of this layout has even begun to extend to other fields. Let alone the plan of killing three men with two peaches just now. ?Lin Hai suddenly felt a sense of mission assigned to him by heaven, and he immediately straightened his back and stood at attention: Ill do it as soon as possible, no, Ill do it right away! (End of this chapter) Chapter 549 Torch CB Ferrari Machine Tools Co., Ltd. Chapter 549 Torch-C.B. Ferrari Machine Tools Co., Ltd. To be honest, this strategy of killing three soldiers with two peaches is not Chang Haonans original work. ?The most popular use of this routine in my previous life was when the Ministry of Railways introduced high-speed rail technology. ?Siemens of Germany, Alstom of France, Japan High-Speed ??Rail Consortium and Bombardier of Canada had their backs and forths, and finally took full control of the negotiation initiative and won extremely favorable introduction conditions for our country. ?Especially Siemens, which initially relied on its technological leadership to demand sky-high prices. In the process, its stock price plummeted, and it even fired the entire negotiation department from the beginning. The entire negotiation has also become a successful example that has been used in teaching cases in many universities. Of course, compared to the high-speed rail market where tens of billions of dollars were invested in the first phase of the trial project, although the CNC machine tool field is high-end, its business scale is ultimately limited. Especially C.B. Ferrari and Torch Group, compared with large companies like Siemens, they are completely small and micro enterprises. More importantly, compared to the Ministry of Railways, which only has the Chinese market as a bargaining chip, the chips in the hands of Torch Group are still more convincing. So there is no need for Chang Haonan to dance on four eggs. This is a commonly used technique in PUA. Hence, there was not much of the expected tenseness in the afternoon talks. ?Of course, if the behavior of establishing a joint venture is compared to falling in love, it seems that it can be explained... It is enough to be able to step on two boats. You can spread some news by the way. Just say that I will return to the capital tomorrow evening. If there are still people who want to discuss cooperation with Torch Group after that, let them directly contact Manager Yang Huimei of the Marketing Department. ?However, after watching the Z9WYs flight performance with my own eyes, these few opinions have obviously disappeared. ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? Mr. Chang, the other partys requirements have no conflict with ours. ?Chang Haonan called to Lin Hai again, who was trotting about to go out. Originally, Colombo, who first proposed this idea, belonged to the Agusta faction within the Finmeccanica Group. This project was also to gain resources for his old club. Coupled with some off-site factors - The only different voices that remain are from technical people like Dr. Gambelli. The latter quickly turned around: "You say." Before dinner that day, Chang Haonan received a report from Cui Wenxue. ?Lin Hai nodded: ??Whether it is Anne Colombos status within the European Aviation Agency or the MA-60 project that seems to be progressing smoothly and has achieved a certain degree of success, Colombos proposal has strong persuasiveness within the group. "good." Create a sense of crisis for the other party, and then use "unexpected events" to shorten the other party''s reaction time. By the way, Director Lin. "Then I will find a less deliberate opportunity tonight and find a way to escape through the people on the Italian side." ?Cui Wenxue handed a copy of the meeting minutes to Chang Haonan and summed it up succinctly: Actually, certain modifications have been made based on the cooperation method of the MA-60 project. Because the aircraft was jointly developed by both of us from scratch, the model name is called AC139. Of course, we have also considered the subsequent development of the model. If a military model is derived, it will be done in accordance with the respective equipment naming principles. In terms of the property rights of the model, our Ice Flying Group and AgustaWestland each hold 50%. We are responsible for producing the main rotor, tail rotor, engine fairing, front fuselage and landing gear, and the Italian side is responsible for producing the power and transmission system. , avionics equipment, rear fuselage, cabin facilities and optional nose optoelectronic equipment on some models. "However, the Italian side also put forward conditions. For the airframe part, before putting it into production, we need to inspect the level of our production technology. After all, the product is high-end positioning. I guess, firstly, they are worried that our technology is too poor to cause Agusta His reputation has been damaged, and secondly, it should be to promote the machine tools and equipment of Italian companies. Chang Haonan listened and quickly browsed the meeting minutes in his hand: This requirement is not excessive. If our products want to truly go high-end and go global, we cannot always take the cost-effective route and be satisfied with the most basic usability. The Italians level of precision manufacturing, as well as their ability to create a sense of luxury and extravagance, are all things we need to study and study carefully. People rely on clothes, and Buddha relies on gold. After the MA60 built by the Haofei Group was equipped with the in-cabin facilities provided by the Italians, I went in and took a look, and I couldnt tell that it looked like a 7 before. Speaking of this, Chang Haonan raised his head and looked at Cui Wenxue next to him: By the way, Mr. Cui, I remember that you were previously in charge of the car manufacturing business? ?This somewhat off-topic question made the latter stunned for a moment, then nodded: "That''s right, during the worst time of the military industry in the 1980s, Bingfei Automobile, which was established, was responsible for the sideline. Later, I was transferred from the general manager of the general manager of Bingfei Automobile to the group as the general manager." , if we can learn from it, it will also be good for the automobile business. Chang Haonan said and handed the meeting minutes that he had read back to the other party: Building mini cars, just like our previous aviation products, focuses on cost-effectiveness. As long as it can be driven, users will not be picky. But if you want to build a car, you have to work **** the brand, craftsmanship, durability, and luxury. ?Cui Wenxue''s eyes immediately lit up. Even if the helicopter business starts, there is no doubt that he will not let it go easily. But when it comes to transformation, I dont have a clue at the moment. But what Chang Haonan just said gave him new ideas. Previously, the group had been using its car-making business to support its old business, which was unable to make ends meet. ?Now, it seems that it is the turn of the aviation industry to support automobiles. ?Of course, this is entirely an internal matter of the Bingfei Group. Cui Wenxue also knew that it was impossible to bother Chang Haonan with this kind of thing, so he just kept this idea in his heart secretly, and still did not deviate from the topic: Mr. Chang, if there is no problem, our two OEMs and several core suppliers plan to formally sign the contract tonight. Do you want to see if we need to make special arrangements for you..." Before he finished speaking, he was interrupted by Chang Haonan waving his hand: No, its business, Ill just attend as the representative of the core supplier. Thats right, we can also discuss cooperation with some Italian suppliers. ?Chang Haonans strategy is obviously effective. ?At the signing ceremony that evening, Chang Haonan specifically chatted with representatives of FTP Group and DRS Technology Company alone for a period of time. Among them, the latter is a supplier of optoelectronic equipment. Like Agusta, it is one of the subsidiaries of Finmeccanica Group. Chang Haonan''s visit to them had nothing to do with the plan of killing three men with two peaches. Simply because China currently lacks a high-performance photoelectric detection equipment. The current Zhi-9W and Zhi-9WY are both equipped with laser sights used on ground vehicles. They have a single function and can only be used to guide the Red Arrow 8 anti-tank missile, and the effective range is still relatively short. ??If a multi-functional sighting system is available, it will be a huge help whether it is for armed helicopters or future integrated surveillance and attack drones. ??The Italian delegation is small in size, and they all know each other to a certain extent. Coupled with Lin Hai''s push, the news cannot be concealed at all. That evening, Chiravadi learned through his assistant that Chang Haonan was in contact with the FTP company. He pretended to be unintentional and tried it out. The reply he received was that FTP Company was indeed negotiating with a number of Chinese companies for cooperation and had a positive attitude towards the prospects of the Chinese market - In fact, FTPs so-called cooperation only signed two purchase contracts with the local 172 Factory and the 122 Factory in Bingcheng. Since China has been short of high-precision machine tools for a long time, it is quite willing to spend money in this area. Just two factories purchased equipment worth nearly 100 million US dollars. This is naturally a good start for the FTP Group. Getting an order of US$100 million in one afternoon, it would be a waste if you dont have a positive attitude. ?However, in Chiravadis view, this statement has a different meaning. ??He saw with his own eyes that Chang Haonan had a pleasant conversation with the representatives of the FTP Group when signing the contract in the evening. Obviously, Chiravadi did not know the allusion of "Cao Cao wiped the book and Han Sui", and he took it for granted that the FTP Group was also in contact with the Torch Group. FTP''s machine tools already have the advantages of long overhaul intervals and low usage costs. If they are asked to improve processing and usage efficiency, it will definitely not be a good thing for C.B. Ferrari, a small business. Actually, if it were just like this, Chiravadi might still hesitate. But he soon learned that Chang Haonan would return to the capital early the next night. ? This unusual move was naturally regarded as evidence that Torch Group had reached a cooperation intention with FTP. Chiravadi, who was already numb, called China overnight. After a lot of talking, he finally convinced the other two partners to accept the joint venture conditions proposed by Chang Haonan. The two parties established Torch-C.B. Ferrari Machine Tool Co., Ltd. with a 50:50 share ratio, specifically responsible for the research and development of a new generation of milling machining centers equipped with linear motors and torque motors! (End of this chapter) Chapter 550 Fight back against provocation! Chapter 550: Fight back against provocation! ?After the preliminary cooperation intention is confirmed, Chang Haonan naturally does not need to be involved in the details of establishing the joint venture. First of all, Yang Huimei has rich experience in this area and is fully capable of taking charge on her own. Secondly, the establishment of Torch-C.B. Ferrari Machine Tool Co., Ltd. is not a matter of Chang Haonan or the Torch Group itself. ? Huaxia basically had no say in the field of mechanical processing in the past. Let alone establishing a joint venture with others, even importing finished machine tools depends on other people''s opinions. Often you pay a high price, but what you get is not a fully functional product. Once something breaks down, even if only some trivial parts need to be replaced, foreign companies must send people to repair it. Others do not allow Huaxia engineers to dismantle the equipment at all. Some brands dare to charge tens of thousands of dollars for a simple replacement of a shell cover that does not involve core technology at all. As a veteran who has been working in the Science and Technology Commission for 20 years, although no one has said it clearly, he can tell from the recent rumors that he may be promoted. For example, the conditions of the joint venture include that Huaxia will be responsible for part of the production of machine tools, but Chang Haonan does not have the space on hand. ? Spending more money is the second most troublesome thing. The most troublesome thing is the downtime caused by waiting for slow foreign technicians. ??If you buy a new piece of land, firstly, it will cost a lot of money. Secondly, the procedures involved are also relatively complicated, especially regarding the nature of the land and the land use plan. It is easy to leak the news prematurely and attract resistance from some people. ??That is, the person who hopes to revitalize his business through the die forging press project. The establishment of Torch-C.B. Ferrari at least shows that China has begun to have its own voice and initiative in this field for the first time. ?This matter is very simple to operate, because the person in charge of the military-to-civilian conversion business happens to be Zhang Yong, the director of the Second Department of Systems Engineering ?So Ding Gaoheng directly found a veteran factory in Yanjiao and sold (given) it to the Torch Group for zero yuan to avoid hindering the progress of the cooperation. ?In the past few months, the progress of several key projects of Ordnance Industry Corporation has been rapid. ??Although it is theoretically a subsidiary of the Chinese Academy of Sciences and is considered a member of the National Science and Technology Commission system, almost everyone knows that most of the company''s policies, funding and business are closely related to the Commission of Science, Technology and Industry for National Defense. Therefore, Ding Gaoheng directly sent Lan Xinzhi to work under Chang Haonan, on the one hand to continue the investigation, and on the other hand to handle various miscellaneous matters in the process of establishing the company. In the following period, Torch Group was almost busy preparing for the establishment of a joint venture, while Chang Haonan himself, as usual, put his main focus back on the two key projects of turbofan 10 and die forging press. As for various procedures, the green light has been given all the way. Fortunately, Song Jian and Ding Gaoheng have a very good relationship both personally and professionally. Otherwise, with the current influence of Torch Group, they would have to fight for their heads. If nothing else, just being able to repair machine tools by yourself can solve the worries of many Chinese companies. ?However, as the ninth session of the conference draws closer, more and more undercurrents are surging beneath the calm surface. It is logical that he owed Chang Haonan a lot of favors. What is a network of people?jpg From this perspective, Torch Group may be the most special state-owned enterprise in the country. ?Especially the third-generation tank prototype, which is the head project of Project 9910, was highly praised by General Li Liangxin, the commander-in-chief of Project 9910 and who also had a relationship with Chang Haonan. ?During this period, before getting off work every day, Lan Xinzhi would make a special trip to Chang Haonan to report on his work. ?At such a juncture, he was suddenly personally assigned to the Torch Group by Ding Gaoheng, responsible for assisting Chang Haonan in promoting the registration of Torch-C.B. Ferrari. The meaning is self-explanatory. This is the final test. The examiner is undoubtedly Chang Haonan. ?In this case, he just reported more diligently instead of directly kneeling down and licking her, which can be regarded as an excellent act of integrity. Mr. Chang. At 5:20 pm, Lan Xinzhi knocked on the door of Chang Haonans office on time again. "come in." Chang Haonan, who had just read an email, raised his head and saw that the reports brought in by the other party today seemed to be much more than usual. "Mr. Chang, the relevant approval processes in China and Italy have basically been completed. What''s left are some business-related issues. They have been reported to you in pieces before. This is the list after sorting it out. Lan Xinzhi said as he put the things in his hands on the table: The most important thing right now is that we need to select 5-6 skilled workers to go to Italy for a period of training to meet the requirements for processing machine tool parts. In addition, in exchange, the other party will also send a group of engineers to Torch Group to learn algorithms for processing process simulation. Chinese technicians are not inferior in terms of craftsmanship, but after all, the foundation of new machine tools comes from C.B. Ferrari, so whether it is habits, standards or techniques, they must take the initiative to adapt to others. The converse is also true. In terms of machine tool structure and processing process optimization, China is used as the standard. It is equivalent to a deep binding between the industries of the two countries. Absolutely good news for C.B. Ferrari. Because this is Huaxias first successful attempt in the field of high-end machine tools. ? Once inertia is formed, it means that China will make a lot of references to C.B. Ferrari in the relevant standards of the machine tool industry. It is completely overwhelming wealth. Chang Haonan thought for a moment and quickly replied: As for the selection of candidates, priority should be given to recruiting backbones with excellent positions and skills from the military industry system. Of course, I dont want these people for nothing. After the processing center is put into production, I can compensate them accordingly in terms of price. Furthermore, I suggest that C.B. Ferrari try to expand the scale of the company within its controllable range. Chang Haonan said as he relaxed and leaned back on the chair: Otherwise, Im afraid we wont be able to take the orders we receive by then. Lan Xinzhi holds a notebook in one hand and a pen in the other to record quickly. As the senior secretary of the Committee of Science and Technology, his ability to handle specific affairs is excellent. He categorizes one condition at a time according to importance and related objects, and quickly handles all important business. After the daily routine was over, Lan Xinzhi did not leave immediately as usual. He hesitated for a moment, then took out a newspaper from his inner pocket. Mr. Chang, I think you need to take a look at this. "oh?" Even though it has been two years since his rebirth, Chang Haonan still maintains some of the habits of the 2020s. For example, unless there is a clear purpose, print media is rarely read. He took the newspaper into his hands with curiosity. Has administrative intervention become the biggest obstacle to the results of opening up? ?Chang Haonan raised his eyebrows. ?Such a straightforward title, and considering the current time, he could even guess what the content was. ?After reading it ten lines at a time, he almost burst out laughing. For people in this era, the content of reports is indeed eye-catching. ? Its just that Chang Haonan is someone who has experienced the crazy era of self-media. Reading the content here is almost like watching the ancient tomb sect. ? It takes a few enterprises from developed Western countries as examples without any new ideas, and then compares them with several domestic state-owned enterprises that are in poor operating condition, pointing out that "the rigid operating system is no longer suitable for the market economy of the new era." As for the final spearhead of the article, it is naturally directed at several ministries of industry and the corresponding departments and bureaus that will be established to replace them. ?Of course, if it were just that, it wouldnt make people laugh. What really made Chang Haonan unable to hold his nerve was that the article devoted the most space to criticizing Italy and used Italian companies as positive examples of rapid development after privatization. However, today he dares to say that no one in the country knows Italy better than me... ?If nothing else, Finmeccanica Group, which is about to wear the same pants as China Aviation Industry Corporation, is an Italian state-owned enterprise. ?In addition, Italys lifeline industries such as roads, railways, postal services, and energy are also state-owned enterprises... And the revenue level is quite good. It can only be said to be very hilarious. Mr. Chang, do we need to find a way to fight back? Lan Xinzhi was naturally panicked. ?Although the establishment of the Equipment Industry Department is a certainty, if the wind direction is too unfavorable, it will also bring huge obstacles to subsequent work. Of course we have to fight back! ?Chang Haonan patted the newspaper gently on the table: You can postpone the signing ceremony of cooperation with C.B. Ferrari for a few days until the end of this month, so as to give the Equipment Industry Department a good start. Since some people like Mr. Yang so much, let Mr. Yang personally slap them in the face! (End of this chapter) Chapter 551 A good start for the Equipment Industry Department Chapter 551 A good start for the Equipment Industry Department The Equipment Industry Department was finally established. However, there is indeed great internal and external pressure on market opening. Therefore, it is difficult for superiors to blatantly transfer too many functions of the original Ministry of Machinery Industry to the Department of Equipment Industry. Only in the name of national defense and security can some key units be transferred to the Commission of Science, Technology and Industry for National Defense system for management. Of course, from the perspective of the Science and Technology Commission alone, if the scope of authority is further expanded and a dozen large and medium-sized enterprises with considerable influence in the industry are included, it will be profitable without losing money. Director Lan, from now on, our work will need your support. ??In Ding Gaoheng''s office, Chang Haonan shook hands with Lan Xinzhi, who had just received the transfer order and officially became the director of the Equipment Industry Department, and said with a smile. Hey, where can I say support? According to Director Dings deployment, our department must cooperate with Mr. Chang in your work. Lan Xinzhis statement is very accurate. Support can be given or not. Fortunately, after their efforts, it actually had the effect of lifting the roof. When we proposed that some of the companies involved in national defense and security be placed under the management of the Science and Technology Commission, the opposition voices became much smaller. The difficulty of grabbing a position from an existing department is not at the same level as that of occupying a new department with a blank sheet of paper. At this point, his expression still looked a little gloomy. This time, we still have to thank the Economic and Trade Commission for absorbing most of the firepower for us. After all, if we really talk about this matter, it is still affected by foreign pressure. Ding Gaoheng stood in front of the office window, looking at the mist-shrouded Beijing outside the building, and began to tell Chang Haonan and Lan Xinzhi what happened below the water during this period: When they came up, they proposed to establish a National Machinery Industry Bureau to take over most of the functions of the Ministry of Machinery Industry. This request was so direct that it immediately became the target of public criticism. ?But there is no other way. Joining the WTO is China''s top priority at this stage. When the comprehensive national strength is far less than that of the other side of the ocean, the struggle still requires strategy. ?These two things were enough for Lan Xinzhi to decide his stance for the rest of his life. Furthermore, as the first leader of a new department, as long as he is not too abstract and impersonal, then this department will definitely leave his personal mark to a considerable extent. ? Ding Gaoheng was in high spirits today. After all, he led his department to win a battle on a battlefield without gunpowder smoke. As for the other support behind it, there is no need to mention it. When he received the transfer order, Ding Gaoheng made it clear that without Chang Haonan''s high praise, it would have been difficult to make the decision to appoint him. Furthermore, even from Lan Xinzhis personal perspective, at least 80% of his transition from the position of secretary to the head of a department was due to Chang Haonans operation. He paused for a moment, then turned around: As for the upper limit of this department in the future, it depends on what kind of work results we can achieve in the future. It will be of great help to future development. ?Originally, the establishment of a new department is equivalent to the establishment of a new army. Ding Gaoheng only plays a routine role and provides encouragement. Not only those at home, but also the United States, which is negotiating with us on accession to the WTO, has exerted pressure through some channels, saying that what we say is inconsistent with the principle of market openness, let us carefully consider it. However, cooperation is a clear master-slave relationship and must be given. Now, although we dont actually have much authority in our hands, fortunately we have set up the Equipment Industry Department. As long as the organizational structure can be determined, there will be room for maneuver in the rest of the things. After all, the idea of ??establishing the Equipment Industry Department was first proposed by the latter. In the end, Chang Haonan came directly to Bo Zhen: "Director Ding, we are already prepared in this regard. The founding ceremony of Torch-C.B. Ferrari could actually be held in the middle of the month. I specifically asked Director Lan to postpone it to next week, early April, as a way to provide support to the equipment industry. A good start! Although Torch Group itself is not under the jurisdiction of the Commission of Science, Technology and Industry for National Defense, the powers of the Department of Equipment Industry include part of industrial planning. Although it is far less powerful than the Ministry of Machinery Industry, which can directly determine the direction of policy development, fortunately it can still be regarded as retained. There is some room for maneuver. ??The last document issued by the Ministry of Machinery Industry before its dissolution was to place some functions of the Machinery Industry Branch of the Council for the Promotion of International Trade under its own name. Immediately afterwards, the Equipment Industry Department took advantage of the situation and obtained the relevant authority to carry out international trade promotion work in the industry. Ding Gaoheng didnt even have time to calm down the surprise on his face before he sat back at his desk: It just so happens that the No. 1 document after the establishment of the Equipment Industry Department has not yet been issued. Comrade Xinzhi, you go back and draft a document to promote foreign cooperation in the high-end machine tool industry, and send it out before next week, just in time to coordinate with Xiao Changs actions. ?Lan Xinzhi had just taken up his post and was at his most smug when he immediately stood at attention with a snap: "yes!" ?Everyone knows that in an asset-heavy field like machinery manufacturing, both industrial adjustment and development are slow, and it is impossible to see results after publishing a document on the first day. But some things are all about posture. Although 99% of the cooperation between Torch Group and C.B. Ferrari has actually been completed in advance, and even the technical personnel sent by both parties have started business work, as long as a landmark event like the signing ceremony is placed after the release of the document, Then you can express your support for industrial policy. ?Including the Equipment Industry Department, we can openly treat this matter as performance and write it into next years annual work summary, and no one can find fault. Everything was carried out smoothly according to Chang Haonan''s plan. Two days later, the Department of Equipment Industry issued Guokefa [1998] No. 1 document, officially listing accelerating the research and development of equipment industry technology and actively seeking foreign exchanges and cooperation as the development focus for the remaining three years of the Ninth Five-Year Plan. At the beginning, naturally there were more people waiting to see the joke. After all, China used to have no say at all in this field, and the market was almost entirely occupied by imported products. Even some media soon made some cynicism with the title "It is not advisable to "launch satellites" under administrative pressure." The article states that in the context of the rigid system and low level of domestic machinery manufacturing, the so-called "foreign exchanges and cooperation" are simply impossible to achieve. At best, they can only exist as some kind of "face-saving project" for the leadership. Rather than spending a lot of resources on such useless work, it is better to be more realistic, completely liberalize industrial policy, introduce more dynamic private capital, and start from the low-end part of the industrial chain. ? ? After such an impassioned speech, if the signing ceremony with C.B. Ferrari hadnt already been prepared, Chang Haonan might have believed it himself. Director Lan must keep this magnificent article, it is very memorable. Chang Haonan read the entire article, tried not to laugh out loud, and handed the article that took up half the page to Lan Xinzhi. Im going to find someone to frame it and put it on my desk. ?At this time, Lan Xinzhi no longer felt nervous as when he saw a similar report for the first time. He almost couldn''t help but joked: It can be regarded as an incentive for our equipment industry departments work..." I think you might as well wait a little longer. Ding Gaoheng, who was standing next to him, said as he put a cigarette under his nose, smelled it, and then stuffed it back into the cigarette case. In the past two years, he almost gave up smoking because of Chang Haonan. Tomorrow afternoon, the founding ceremony of Torch-C.B. Ferrari will be held. I have already contacted the two major newspapers and Ta Kung Pao, and a report will be published the morning after tomorrow. When you put these two pieces of content together, the motivational effect may be even better. Chang Haonan even directly made a murderous suggestion: I might as well frame an extra copy and send it anonymously to the newspaper that published the article In short, the Equipment Industry Department has made a good start and is ready. (End of this chapter) Chapter 552 Kill people, but also kill your heart Chapter 552 Killing people, but also killing people It is of course just a talk to make fun of someone elses newspaper. ??If you really want to do it, regardless of the impact, it would be too humiliating. ??Neither Lan Xinzhi nor Chang Haonan can afford to lose that person. Besides, for people in their position, there are actually more heart-wrenching ways. So, the next day, Chang Haonan, Lan Xinzhi and Chiravadi attended the joint venture signing ceremony together, which was also the ribbon-cutting ceremony of Torch-C.B. Ferrari Machine Tool Co., Ltd. After all, the buildings, land and even workers of this old military factory are all ready-made. ??The scene of three people standing together to cut red silk was also captured by various media who were invited to come - Among them, naturally, there are several companies that have previously questioned the development route of the Equipment Industry Department. ?Originally, Lan Xinzhi was planning to block their hand in getting permission for on-site editing. But Chang Haonan said it was not necessary. "Maybe that article was written by this guy himself..." It also targets the unharmonious voices before the establishment of the Equipment Industry Department. ?Chang Haonan thought with a bit of a mischievous attitude. He was worried that if Lan Xinzhi continued to talk, he would faint. Some faces are more exciting when played on the spot. Thats understandable. Although the people have no memory. Originally, they were not prepared to be so aggressive. But this slap in the face came too quickly. ??Looking carefully, I found that the reporter sitting in the front row was wearing a Southern City Media sign. So, after the ribbon-cutting, the first person to speak was Lan Xinzhi. ??And its a good thing that I chose it one day before. ??However, some people insist on killing themselves by hitting the muzzle of the gun... ?One of them even gnashed his teeth so hard that he looked a little ferocious. The newspaper that published that heroic article just two days ago belongs to this media group. The entire ceremony process and the content of the speech were actually decided long ago. More importantly, it is to restore some confidence to the machinery manufacturing industry that has just lost its coordination. To put it bluntly, some slightly remote second- and third-tier cities can only read the newspapers published yesterday. He had long prepared a speech with a gun and a stick, in which he specifically mentioned the issue of confidence in industrial development, and emphasized many times that Torch-C.B. Ferrari was guided by the guidance of the Equipment Industry Departments No. 1 Document. Such joint ventures are established through cooperation. Chang Haonan, who was sitting idle next to him, paid special attention to the fact that there were reporters from several media below, and their expressions were quite exciting. ?Although Chang Haonans actual voice in the Science and Technology Commission system far exceeds that of Lan Xinzhi, at least on the surface, the Equipment Industry Department is still the leading business unit. ??As a result, the news on the same day will broadcast such a cheering news, coupled with Lan Xinzhis aggressive speech... No matter how thick-skinned you are, you can''t resist doing this. Actually, Chang Haonans guess is not much different from the actual situation. ?The reporter Meng Yong below who is gnashing his teeth is indeed closely related to yesterdays article. ??Although the author is someone else, it was through his connection as a senior editor and reporter that he was able to occupy half of the page and publish it in Southern City Daily. As a result, today, the boomerang pierced my body. ?However, it is impossible to admit a mistake. ? Meng Yong recorded the content of Lan Xinzhis speech in his hand, and had already figured out a way to counterattack by uniting several media outlets with similar positions. The idea is also very simple. ? Your new company, even if it is a joint venture, will definitely take the path of dealers and low-end OEMs at the beginning, just like a joint venture car. ? Just seize the parts of the speech related to "reciprocity", "cooperation" and "autonomy" and attack them. In any case, no matter how high Lan Xinzhis status is, he cant control their media. ?Moreover, his target must be aimed at the Torch Group, not Lan Xinzhi himself. ??For Meng Yong and the Nancheng media behind him, they are just a second-tier state-owned enterprise, so if they are scolded, they will be scolded. ?Even if you find out that you made a mistake later, there will be no trouble. Thinking of this, Meng Yong felt a little better. At the same time, he began to look around for the "friendly troops" who came with him before, and planned to hold a small meeting to discuss it after the ceremony. At the same time, on the stage, after Lan Xinzhis speech, the second one was naturally Chang Haonan. He said that as a joint venture in line with the national high-end technology development initiative, the establishment of the company will not only be a huge progress for China''s machine tool industry, but will also have a revolutionary impetus for the machinery manufacturing industry in Europe and even the world... These contents made Meng Yong shake his head inwardly ?This Chang Haonan looks much younger than the director just now, and he doesn''t have a good mouth. ?Compared to just now, the tone of this speech was too high, and in Meng Yongs opinion, it was even more out of tune. "The more you brag now, the more people will be embarrassed when I write the article after a while..." ?His pen tip moved very quickly, and the initial anger at being slapped in the face had long since disappeared, leaving only the secret pleasure of thinking about the other party being hit by the media attack and being at a loss what to do. Although Meng Yong can''t actually get anything directly from it, the royalties are not particularly worthy of attention for him today. But he really enjoys the pleasure of using his channel advantages to manipulate public opinion and make the other party feel speechless. However, before he was satisfied, Chang Haonan suddenly changed the subject. Just talking about it is not very convincing. So, in order to avoid the suspicion of talking empty words, we at Torch-C.B. Ferrari have brought a surprise to all the media friends who came to the scene, the kind that is guaranteed to be on the front page. The crowd below, which had been almost stagnant, suddenly became commotion. Todays signing and ribbon-cutting ceremony, so far, has really not been a big deal. Journalists all like to make big news. After a brief pause to make sure that everyones attention and curiosity were attracted, Chang Haonan spoke again: Today, in addition to the signing and ribbon-cutting ceremony, we will also officially launch the Torch-C.B. Ferraris first product, the three-axis CNC machining center, MS45T! As he finished speaking, several staff members pulled out a plain-looking rainproof cloth from an inconspicuous location next to the factory building. At the same time, the surrounding lights lit up and hit the surface of a vertical machine tool. ??? Meng Yong, who was still immersed in imagination just now, felt that he was just stunned, and the situation seemed to be a little wrong. He turned his head stiffly and looked at the place where the light was focused not far away. Even people who are not technical can feel a sense of high-end and precision from the bright reflection. Actually, when they first entered the venue, everyone saw this crudely packaged thing. But they basically thought it was just some sundries or ordinary equipment. The result turned out to be... What are your companys products? In just a few seconds, everyone at the scene experienced complex emotional changes from curiosity, to confusion, to confusion, and finally to shock. Then, the first person finally reacted Launching a product on the first day the company was founded? Dozens of eyes turned from Chang Haonan to the machine tool on the other side, and then back to Chang Haonan, going back and forth several times. ?After filling the scene with tension and drama, Chang Haonans voice sounded again: Torch-C.B. Ferrari is by no means just a foundry, let alone a dealer, but a driving force that masters core technologies, collaborates with high-level foreign friends, and jointly promotes the development of the industry. In the name of this machine tool, M and S represent linear motors and servo motors respectively, while T represents the application of the full-process simulation program for the machining process developed by our Torch Group..." ?These words simply predicted all of Meng Yongs thoughts. Just block out the content of the article he wants to write without leaking anything... For the next ten minutes, Chang Haonan was introducing the MS45T machining center. To put it simply, it realizes what you see is what you get to a certain extent ?As long as the processing parameters are input into the program, the product style after processing can be directly calculated, and production can be started only after confirmation. ?This function may seem inconspicuous, but for some companies that need to process a large number of special-shaped and complex parts, it is definitely a trump card tool to reduce production losses and shorten training hours. The optimized honeycomb structure bed and new motor have a 24.1% increase in first-order natural frequency (less prone to resonance) than the old model, a 7.4% reduction in bed mass, and a 27.3% reduction in static comprehensive deformation. The equivalent stress is reduced by 35.6%. All in all, it is a product that completely crushes the old model. And its price is exactly the same as the original A45. ?Of course, this is just the most basic model. ? Even in order to put it into production as soon as possible, it was directly modified based on C.B. Ferraris old model A45 three-axis machining center. After all, not only China has high expectations for this joint venture, but the Italians also have high hopes. ??"Cooperating with China to develop machine tools", if you can''t get some results soon, it will be easy to make people laugh... Mr. Chang, has this equipment already been produced, or is it just a prototype? ?Finally someone couldn''t help it and shouted a question before the formal question-and-answer session. This is what Meng Yong, who has just come back to his senses, wants to know. He thought he might be able to save himself. "certainly." ?Chang Haonan nodded and answered straightforwardly: Actually, four customers at home and abroad have ordered a total of more than 70 products from us, and according to the contract, the equipment will be officially delivered before the end of this month. Not only that, our Torch Group will further deepen our cooperation with C.B. Ferrari, build precision machining research centers in China and Italy, plan to launch a more advanced five-axis machining center, and try to solve extreme problems in the traditional milling process to achieve The true sense of full freedom of processing! Here, I also sincerely invite all friends from the media industry to continue to be witnesses and follow the Torch-C.B. Ferrari Company to grow and progress together! After finishing speaking, Chang Haonan''s eyes habitually swept across the audience. ?Inadvertently, he noticed that the ferocious-looking reporter just now had a confused look on his face, as if he had doubts about life after his worldview was shocked. ?The sight stayed there for a moment. Actually, Chang Haonanshi had no idea what Meng Yong had just done in his mind. ?However, for the latter, the look that looked at him on the stage for a moment seemed to contain silent ridicule. ????????????????????????????????? (End of this chapter) Chapter 553 strategic deception Chapter 553 Strategic Deception ??The joint venture established by Torch Group and C.B. Ferrari is indeed an earth-shattering event for Chinas domestic machinery manufacturing industry. ?However, on an international scale, it has not had any direct impact yet. After all, China has never made any waves in the field of high-end machinery manufacturing in the past. Except for the media who witnessed the launch of MS45T that day and a few insiders in the industry, most people, even if they knew about the establishment of Torch-C.B. Ferrari, most of them only regarded it as something that China had established in the past ten or twenty years. Like other joint ventures, it is just a means for C.B. Ferrari to enter the Chinese market As a pure distributor, we are at most responsible for some less important parts of production and manufacturing. ?Furthermore, since China and the EU launched cooperation in the aviation field last year, European machine tool companies have gradually begun to secretly export some equipment that they did not sell in the past. Now that I see C.B. Ferrari daring to be the first to try something, I feel brave enough at most. Not many people are truly aware of the nature of the cooperation between the two parties and the round of reshuffle that will be brought to the machine tool industry. At least not yet. He has a very clear understanding of the nature of his current position Now, as long as the OEM is ready and you send the processing flow chart separately, you can start to promote production. ? It should be said that as a new organization, the Equipment Industry Departments work efficiency is quite good. After flipping through the pages quickly, he raised his head again and said to Lan Xinzhi: So after Lan Xinzhi took office, he naturally made the production of die forging presses the No. 1 project supervised by the director himself. As the first project that he presided over as director (of course, he actually started it), Lan Xinzhi naturally hoped that it would be completed as quickly as possible. After a brief pause, Lan Xinzhi changed the topic again: In addition, Mr. Chang, now that the Equipment Industry Department has been officially established, this project no longer needs to be called a pre-research project, and it is time to become a full-time project. ??If the idea of ??"giving a gift to the 50th National Day" can really be realized, besides Chang Haonan, he will definitely be the one who will benefit the most. Lan Xinzhi handed the collected information to Chang Haonan, and then sat on the chair opposite the desk: Although there was some resistance, we basically got it. The latter nodded: As the design work of the heavy-duty die forging press comes to an end, the production of more difficult and troublesome equipment has been put on the agenda. Mr. Chang, this is feedback on your previous business list. A few days after the signing and ribbon-cutting ceremony. Please decide what the name of the project should be, and I will handle the specific procedures. Comrade Yan Yongnian and I are leading the project team in the past two days to carry out the final design calibration and drawing confirmation of the die forging press. If nothing goes wrong, we will start issuing drawings at the end of this month. Fortunately, Lan Xinzhi is a secretary himself, so he is quite familiar with these tasks. At least for a short period of time, the Equipment Industry Department was actually Comrade Chang Haonans secretarial team. Then I will notify the persons in charge of the relevant units of the basic situation regarding the production of forging presses as soon as possible, and ask them to adjust their business and production capacity as soon as possible, leaving sufficient priority. In fact, the Equipment Industry Department first made dumplings just for this dish of vinegar. For China, whose overall industrial level is not yet high, the only option to manufacture such giant equipment is to mobilize the whole country. At least Chang Haonan was satisfied with the information in his hand. Lets call it a 750MN giant die forging hydraulic press. ?Chang Haonan is not going to do anything fancy either. A simple device needs a simple name. As for why it is 750MN (75,000 tons) Because after converting the frame structure from the steel wire wound type to the plate and frame combination, Chang Haonan and the others analyzed the bearing capacity of other subsystems in detail, and squeezed out a 10% design margin based on the original design calibration of 680MN. Strictly speaking, it is similar to the surge margin of the previous engine. Such a margin is caused by the insufficient design level at that time. But it is a good thing for Chang Haonan today. At any rate, he can make it now. By the way, this equipment is tied with the two in Russia, making it one of the three largest die forging equipments in the world. After watching Lan Xinzhi write down the name of the project in his notebook, Chang Haonan continued: "In addition, remember to be realistic and count the specific technical difficulties of these units involved in the production of die forging presses. If any company If there is an urgent need to improve the level of precision processing, you can report it specifically, and I will ask Wei Yongming to arrange for the joint venture to jump in and supply them. " ? Wei Yongming, who just graduated from Qinghua University in March, was directly recruited into the Numerical Computing Business Department by Chang Haonan. He is now directly connected with the C.B. Ferrari Group and is responsible for the system development and optimization of new machine tools. Also, the core intellectual property of the die forging press lies in the overall structural design and frame production and assembly. In addition to these, in order to ensure production efficiency, 100% localization rate is not required. However, whether it is imported or domestically produced, they are all treated equally. Full performance testing must be carried out in person, and you cannot just look at the test report issued by the supplier. If something goes wrong, even if we kill the person responsible, the damage will be difficult to recover, so we must not be careless..." Chang Haonan mentioned more than a dozen precautions one by one, and Lan Xinzhi also wrote them down in his notebook one by one. After finishing talking about the serious business, the two finally relaxed a little. Speaking of which, the establishment of our joint venture does not seem to have caused much international repercussions Lan Xinzhi put the pen back into his pocket and said in a casual tone. Chang Haonan then smiled and asked: Director Lan hopes that the international response will be more severe? Hearing this question, Lan Xinzhi shook his head subconsciously, but then nodded again: I mean, on the one hand, I hope to continue to make a fortune quietly. This is also in line with our strategy of keeping a low profile and biding our time. But on the other hand At this point, he scratched his head in embarrassment: Such a great achievement, and I hope it can be seen internationally, giving us Chinese people a chance to feel proud. Its indeed a bit contradictory... Such a complicated mentality is quite common among Chinese people in this era. Even Chang Haonan had the same idea when he was just reborn. ?Later on, I slowly stopped worrying about it. There is nothing to be contradictory about. Chang Haonan waved his hand. Although he was nearly 20 years younger than Lan Xinzhi, he looked more like an elder: Behind keep a low profile and bide your time, isnt there another sentence that will make a difference? One has two sides, and it should be viewed dialectically. Personally, I still hope that the international response is weaker now, so that when we really soar into the sky, we will be even more proud. Lan Xinzhi didnt really have any other ideas. He nodded immediately and agreed: Thats right, the most important thing is to produce real results. As for the opinions of other countries, just let them take their own course. Speaking of which, we were able to maintain such little movement this time, largely thanks to those old friends. Chang Haonan said as he took out a few newspapers from the drawer of his desk and handed them to Lan Xinzhi opposite: These media outlets in the southern cities have written several articles in succession in the past few days, saying in a straight-forward manner that our Torch-C.B. Ferrari products are just re-shells of imported equipment and do not involve independent research and development at all. Even I almost believe it. At the end of the sentence, Chang Haonan''s tone had a hint of smile. He thought of the legend of the "Strategic Deception Bureau" that had been circulated on the Internet in his previous life. ?Of course, the intentions of these media must be bad. It was just a mistake and it was implemented. TMD, how could you fabricate it out of thin air... Lan Xinzhi obviously has seen too little, and does not have a deep understanding of these medias efforts to confuse right and wrong, and his tolerance is not very high. We really have no control over media matters. Chang Haonan shook his head helplessly and amusedly: "However, it won''t do us any harm if they continue to write like this." At least, you can confuse those foreigners who dont know whats going on, and buy us more time to develop... (End of this chapter) Chapter 554 The die forging press is under construction! Chapter 554 The die forging press starts construction! ?Under the strong care of Lan Xinzhi and even the entire Commission of Science, Technology and Industry for National Defense system, the die forging press quickly moved from the design stage to formal production and manufacturing. ?Of course, this does not mean that everything will be fine for the entire project team. When the preset state is moved to the actual operating environment during the design process, there will inevitably be some parts that require further optimization. However, for excellent and highly completed designs, the impact of these parts will be relatively small, and there is basically no need for rework. ?Most of them can be left to Yan Yongnian, the on-site commander-in-chief. On the second day after the completion of the 750MN giant die forging hydraulic press project, the first C-shaped plate raw material used in the equipment began to be cut at the Baoshan District Iron and Steel Plant in northern Shanghai. ?At almost the same time, Jiangcheng Heavy Machine Tool Factory, the main engine factory for this project, also started construction of a new workshop under the leadership of the new factory director. The dead weight of the 75,000-ton die forging press is extremely exaggerated. Considering the impact and vibration after entering the working state, the requirements for the ground conditions are very strict. Hence, a location with a specially strengthened foundation is needed to ensure stable work for a long time. As for hydraulic cylinders, pipelines, transmission systems and other components, they are also distributed to different suppliers according to their respective design standards and requirements. The localization rate seems to be higher than we expected Just like the previous follow-up investigation of suppliers, Yan Yongnians meticulousness is reflected in every aspect. So we had to let Yan Yongnian run back and forth. ?Yan Yongnian, with two dark circles under his eyes, walked into Chang Haonan''s office and handed a file bag to the latter while reporting. There are quite a few items that were originally classified as need to be imported in Yan Yongnians records, but in the end they successfully found domestic suppliers. In addition, the situation of some subsystem suppliers also required him to investigate and negotiate in person. But there is no online video conferencing in this era, and it is impossible for Chang Haonan to travel between two places every day while holding multiple jobs. Since entering the production stage, Yan Yongnian and some engineering staff were stationed in Jiangcheng, so the entire die forging press project team entered the mode of working in two places. When mentioning this matter, Yan Yongnian was also very interested and explained cheerfully: Furthermore, after deepening cooperation with the EU, many new equipment that were restricted in the past have gradually been imported through various legal or semi-legal methods. In the case of machinery manufacturing, the equipment problems have been solved, and many problems have ceased to exist. The localization rate will naturally increase. After all, this only counts first-tier suppliers. Our countrys machining capabilities have improved rapidly in the past two years. After all, I also have my own job, so a lot of information has not been updated in time. Chang Haonan checked them one by one, and his mind was not idle at the same time: In the past half month, he has been basically too busy to even have a stable sleep time. The situation is somewhat similar to that of Turbofan 10. Chang Haonan opened the file bag and found dozens of documents that had been sorted and sorted with paper clips. After all, I am personally fulfilling the dream that I have been thinking about for more than ten years, building a die forging press from scratch. Mr. Chang, the production of die forging presses is basically on the right track now. This is the list of first-tier suppliers that Director Lan and I have determined so far, as well as the projects they are responsible for. ?However, although the fatigue on his face cannot be hidden at all, Yan Yongnian is still in good spirits. All in all, he has flown on more planes during this period than he has flown in most of his life combined. The other thing is At this point, he paused for a moment: Sigh... In fact, there were rumors that the Ministry of Machinery Industry was going to be disbanded two years ago, so the morale and work efficiency within the department were affected to some extent, and many businesses related to industry coordination were also errands. "Just two days ago, Director Lan and I went on a business trip to Lianhai Hydraulic Factory to provide plunger pumps and control valves. Their factory director said that this was the first time in the past three years that a superior unit had reviewed the reports submitted by the factory. Give feedback. ? ? The company took out a loan to introduce a new production line a few years ago. It originally wanted to increase product visibility, but it turned out that its own brand could not be sold at all, so it had no choice but to do OEM work for big foreign brands. The same thing. If something is rebranded, it will immediately become a hot commodity. Those responsible for production can only earn a small amount of money. It is difficult to pay back the interest on the loan, let alone upgrade to a new generation of technology..." Fortunately, the equipment we need is not of the highest level, and their old equipment can still be manufactured. Thats all. If the Equipment Industry Department hadnt specifically re-examined past reports, we would have thought we could only import..." What Yan Yongnian said is the most direct impact of the loss of overall management of disadvantaged industries. ? Even if you catch up with the advanced level by chance at a certain time, you will soon fall behind again because you have no brand recognition, no market, no user feedback, and still cannot keep up with subsequent technology iterations. "Well... there is nothing we can do about it. On the one hand, there is a lot of internal and external pressure. On the other hand, the original Ministry of Machinery Industry does involve too many things that are not necessary to be grasped. Now it has been reorganized into the Equipment Industry Department. On the contrary, it may not be entirely a bad thing if we can seize the big ones and let go the small ones..." ?Chang Haonan waved his hand and replied with a hint of helplessness. This is not exactly to comfort the other party. The one-stop management model of the Ministry of Machinery Industry has indeed caused many problems. It is not strong enough, and it happens to be a target. It is normal for it to be unable to withstand it. Even including the National Machinery Industry Bureau proposed by the Economic and Trade Commission later, the situation is similar. After sighing with emotion, Yan Yongnian changed the topic to a slightly more relaxed topic: "By the way, I have heard many colleagues in the industry talking about your new joint venture during this period. Some people asked me to inquire about the specific performance and price of this equipment, and when the updated five-axis model will be released. equipment." This actually made Chang Haonan show an expression of distress for the first time: Because the company was established in a hurry, the official website and promotional materials are still being produced. People who buy equipment now basically contact me directly, or contact Director Lan..." Ill make it faster over there. Before the end of the month, normal purchasing channels should be online. ?In order to avoid the suspicion of forced buying and selling, Chang Haonan and Lan Xinzhi did not overemphasize the Torch-C.B. Ferrari matter. Despite this, MS45T still received nearly three-digit orders in less than a week. Mainly, Torch Group is no longer what it used to be. ??It is not very obvious in public perception, but in the industry, it is already well-known. ??Although not many people know about Chang Haonans special status in the Committee of Science and Industry, many people still know that he won three National Science and Technology Awards in February. ??Coupled with the newly established Equipment Industry Department a few days ago, Document No. 1 is to build momentum for the precision manufacturing industry. Even the new directors first public appearance was at the ribbon-cutting ceremony of this joint venture. Those who have a little bit of vision have already shown their talents and started to place orders through connections. ?? Before the company was established, C.B. Ferrari, especially Chiravadi, who was in charge of finance, was still somewhat skeptical about Chang Haonan''s suggestion to expand production scale. Mainly because in the past half century, they have been operating in the form of a precision workshop, with only 300 employees at their peak. Although the products are indeed high-end, the capital chain is actually very fragile. ??If the scale expands, but the business volume does not increase, then the company will directly face an existential crisis. ?Furthermore, he has to worry about whether Chang Haonan is planning to take advantage of this opportunity to annex C.B. Ferrari in one fell swoop? Hence, the expansion of production has been relatively slow. As a result, in less than a month, orders for 200 units were placed. It turns out that those people were so eager to drive screws that sparks popped out. As a result, the production speed was not as fast as the increase in new orders. It is said that even Italians have started working overtime in three shifts... (End of this chapter) Chapter 555 French fleet visits Chapter 555 The French Fleet Visits ?Just when Chang Haonan was busy preparing for the production task of the die forging press. Shandong province, island city. As a long whistle sounded, three warships with flags standing on the **** slowly emerged from the early morning mist, led by a pilot boat. From the blue, white and red vertical stripes of the flag on the ship''s mast, it is not difficult to tell that this is a French navy visiting fleet that has traveled a long distance and visited more than a dozen countries in front of it. The destroyer Jean Bart, the frigate Geyue and the integrated supply ship Durance. ?Several barges that had been prepared quickly drove over and helped three warships to dock sideways on one side of the pier. On the other side corresponding to the three French warships, there are two of the most cutting-edge destroyers of the Chinese Navy, the Bingcheng and Daocheng. ?Although the performance of the two Type 052 destroyers is slightly different from that of the Jean Bart, which has certain regional air defense capabilities, at least they do not suffer in terms of size. As for the Durance River with a displacement of 17,900 tons It is indeed large, but it is not a combat ship after all. Is this a sea rattlesnake? Importing equipment and introducing technology from other countries is a very normal process of military construction. Under normal circumstances, the first item of this kind of visit is a routine visit by the crews of both sides to each other''s ships. Among them, ship 112 is basically imported with original equipment, while ship 113 has been partially replaced with domestic products. Fortunately, China has sent several groups of officers to the French Naval Academy for further training, so they are not completely out of things to talk to. In addition, before the visiting fleet arrives, a quite rich itinerary has actually been arranged, so there is no contact between them. It soon became natural. Do not suffer psychologically. ??But if the mutual trust is not good enough, then the only thing you can do is walk around the ship or even the front deck twice. ??And the Chinese Navy also commissioned the larger Nanyun 953, the Qinghai Lake supply ship, into service in 1996. ?Yang Shuyu next to him explained. Lieutenant General Vojour stood on the destroyer Daocheng, looked up and looked around, and then saw many extremely familiar equipment. ?This is certainly not surprising. Except for the power system imported from the United States, most of the weapons and electronic equipment of the Type 052 ship come from France. ??Although this ship is not in the North Sea Fleet, it still gives everyone an idea of ??the comprehensive supply ship, and it will not be like Grandma Liu who has never seen it when she entered the Grand View Garden. If mutual trust is high enough, this kind of visit can even go to the bridge, captain''s room or even the Combat Intelligence Center (CIC). The navies of China and France are certainly not allies, but they are friendly visits after all, so all non-core areas on the surface of the ships can still be opened. ?There is nothing to hide about this kind of thing. Although both parties have the idea of ????bringing closer to each other, there have not been many similar overseas visits before this, and there were some disagreements a few years ago, so the atmosphere between the two parties was somewhat stiff when they first met. ?Vice Admiral Laurie Vojour, the commander of the French fleet, took the lead to step down from the Durance River and saluted each other with the Chinese leader, Lieutenant General Yang Shuyu. ? Lieutenant General Vojour, who walked along the escalator to gun position B on the bow of the ship, raised his hand and patted the missile launcher in front of him and the missile box behind him. ??The Sea Sidewinder equipped by the French Navy generally uses 4 rounds on the left and right, with a fire control radar design in the middle. This made Vojour not sure about it for a while. On the shore, several rows of honor guards have also lined up, playing military music, and are ready to welcome the visiting ships entering the port. If you insist on claiming other people''s things as your own, it will appear that you are not confident enough. Our model is called Haihongqi 7 air defense missile. Of course, it is technically developed from Sea Sidewinder. A very beautiful warship. ? ? Vojour originally wanted to make some weird remarks about the equipment level of the Chinese Navy. However, except for the anti-aircraft missiles, the antennas of this ship are almost eighty-nine times similar to the Jean Bart parked dozens of meters away. Even if the model produced by China is not as good as the French original, it is impossible for him to really let both sides try to fire a few missiles. In short, no matter what you say, it will boomerang into your head. ?So I had to give an evaluation that was neither painful nor itchy nor wrong. The group of people chatted all the way and finally walked from the bow to the stern of the ship. ?For a 4,500-ton destroyer, the hangar and helicopter deck configuration of the Daocheng are considered luxurious. ?One newly delivered Z-9C is fixed outside, and the other one is parked inside the hangar with its main rotor folded. Seeing these two helicopters, Vojour remembered the joint anti-submarine and search and rescue exercises in the next few days. ??As the former captain of the aircraft carrier Clemenceau, he has a relatively good understanding of carrier-based aircraft. ?Just after walking around for half a circle, he could tell that this aircraft was not the imported AS565 Panther, but a similar model modified by the Chinese based on the Dolphin. The lieutenant general remembered that a few years ago, someone from Eurocopter told him that although the appearance of the Dolphin helicopter produced by China was similar to the original one, the flight performance and service life were very different, especially the effectiveness of the rotor end. The output power is only about 80% of the French product. It seems that during the exercise, we can do a little bit of manipulation to make them look embarrassed..." Worru''s brain was running rapidly, thinking to himself. ?Of course, the main purpose of his trip is to get closer, so this kind of thing must be done in a certain manner. At least you can''t taunt the opponent directly, and you can''t really cause anything big. Must practice martial ethics. Perhaps we can fly an extended spiral joint search route? Worure thought about it over and over again and finally came up with a good plan. ?The so-called extended spiral submarine search is a standard submarine search flight mode that starts from the initial position and gradually expands the search range to the outer circle. At that time, we only need to slightly extend the search range and time, and wait until the fuel supply on China''s side can no longer support it and choose to return. ?This kind of rivalry is very common even within the same army, not to mention between the armies of the two countries. It is not excessive in any case. But the effect is very good. The most important thing is that the outcome is clear and there is no room for ambiguity. very suitable. ?This paragraph is quite long to talk about, but brainstorming is quick. So much so that after these thoughts circulated in Wojru''s mind, he himself made a half circle around the helicopter. Wait a minute...you brought two anti-submarine torpedoes to this helicopter? ??When Yang Shuyu was working on the warship, the Chinese navy didn''t even have a few ships with missiles, let alone ship-based helicopters. After leaving the front line, his work did not involve the construction of naval aviation equipment, so although he knew something about it, he was not particularly specialized. Just think of it as a casual question. Yes, two torpedoes and sonar. ?While answering, I was still thinking, this helicopter should also be a domestically produced French model. How come you, a French lieutenant general, dont know as well as I do... In fact, according to the performance calibration of the new Z-9C helicopter by Bingfei Group, it can choose to carry dual torpedoes + suspended sonar, or a single torpedo + suspended sonar + sonar buoy. A combat radius of no less than 30 nautical miles can be maintained under both mission loads. ??It has exceeded the range of most submarine wire-guided torpedoes, which is considered sufficient. However, the Chinese Navy does not have sonobuoys at all, so the latter configuration is naturally rarely used. ?Wurru, who knew nothing about it, just nodded calmly. ?According to his experience, if the AS565 is equipped with dual torpedoes and suspended sonar, the effective combat radius will not exceed 15 nautical miles, and it will even be difficult to enter hover. And this imitation model is obviously only worse. ??If the Chinese Navy is prepared to participate in exercises like this later, then his plan should go quite smoothly... Looking forward to our joint exercise in a few days, I hope you can put on a wonderful performance. ??After returning to the dock, Wojruer said to Yang Shuyu. The latter was a little confused by this sudden sentence, but still responded politely: We look forward to it too. (End of this chapter) Chapter 556 Joint anti-submarine exercise! Chapter 556 Joint Anti-Submarine Exercise! ??The French fleets visit lasted quite a long time. After all, we came here with the mission of bringing the two parties closer, so most of the activities actually took place ashore. By the time the two sides conducted joint exercises, it was already the afternoon of the fourth day of their visit to Hong Kong. Originally, if we put it aside a year or two ago, like the relatively delicate relationship between China and France, the so-called joint exercises usually meant each sending a ship out to engage in fleet navigation, or light semaphore signal training, etc. There is no nutritional content. Generally, it is even carried out on the way back from the port to the visiting formation, and the guests are sent off directly after the end. However, in the past year, thanks to previous cooperation opportunities, the relationship between the two countries has developed rapidly. Therefore, after the French took the initiative to conduct more in-depth and larger-scale exercises, our military also took advantage of the trend and gave a positive respond. ?On the other hand, of course, our military does have a serious lack of experience in anti-submarine warfare. Considering that many of the navy''s current advanced anti-submarine equipment and technologies come from France, it is obvious that a lot of experience can be gained by conducting a joint training directly with the French army. ?With the sound of a whistle, the Daocheng and Jean Bart, participating in the exercise, unmoored and set sail one after another. Therefore, the ship formation sailed southeast for several hours before reaching the preset exercise sea area. ?According to the plan, the false target in the submarine search subject will be coordinated by a 033 diesel-electric submarine, while the target in the submarine attack subject will be an underwater target that makes noise but has no autonomous navigation capability. Sonar release completed! Joint exercises focus on joint exercises and generally do not set any subjects that are too difficult. Whats more, the water depth in most places near the Yellow Sea is so shallow that real submarines would be visible to the naked eye, and even underwater false targets that simulate submarines cannot be deployed. Anti-submarine drills are naturally impossible to conduct near shore. ?In the CIC of the Daocheng, the new captain Luo Zhangming sat in front of the command podium and ordered calmly. It can be said to be a very perfect imaginary enemy. As a kind of naval equipment, it was already outdated in 1998 and had almost no actual combat value. There was no need to worry about troubles such as leaking voiceprints. ?Multi-ship and multi-aircraft collaborative exercises are quite high-level content. The two militaries have not conducted similar cooperative training before, and it is impossible to increase their intensity from the beginning. After entering the exercise sea area, the two ships quickly followed the previous arrangement, changing from traveling longitudinally one behind the other to traveling horizontally one to the left and one to the right, and kept a relatively long distance from each other. Hence, in the end, both sides only sent one destroyer of similar size to participate. Release the towed deepening sonar. In short, there is almost no situation where the target cannot be found. ?This is mainly because the four sets of diesel engines of the Jean Bart are relatively noisy. If the distance is too close, it will have an adverse effect on the gas turbine-powered Daocheng. And a submarine of this type is easily detectable unless it remains stationary underwater. At most it will take a little longer. As an old submarine, its battery does not support long-term underwater navigation. ??Although the Kagetsu-class, with a displacement of less than 3,000 tons, can carry a helicopter, the ship itself does not have reliable submarine search capabilities. As a second-class colonial frigate, it is not designed to undertake anti-submarine missions. Otherwise, it will be very embarrassing if one party fails to learn and play well. (Here @The South Korean Navy failed to dock independently multiple times during a certain Rim of the Pacific joint military exercise) The prototype of the 033 submarine is the Soviet Type 633, which is essentially a modified Type XXI U-boat. After receiving the report, he continued to give new instructions: Send helicopters to establish an anti-submarine patrol line. The starting point is the 340 direction of the ship and a distance of 10 nautical miles. In modern ships, every command issued in the CIC can be directly transmitted to the corresponding cabin. Therefore, the aviation department, which had already been prepared, quickly pushed one of the helicopters out of the hangar and completed the mounting of an anti-submarine torpedo in the shortest possible time The costs of torpedoes (even mines without warheads) and false targets are very high, so only one is expected to be launched during this exercise. A few minutes later, two helicopters with quite similar appearances took off from the Daocheng and Jean Bart respectively and rushed to the corresponding positions on the side and front of the route to start submarine search operations. Earlier, when the Type 052 destroyer was being designed, the Navy had considered using a two-machine collaboration mode with a torpedo for submarine attack and a sonar for submarine search to extend the anti-submarine warfare radius of the ship-based helicopter to the extreme. The twin hangars on the 052 were designed for this purpose. But after trying it a few times, I found that the result is often 1 plus 1 less than 2. Later on, we honestly returned to the way of carrying out sonar and torpedo missions in different areas or time periods. Of course, the French are responsible for the submarine search on the other side today, so the second helicopter does not need to be dispatched for the time being. ?Although the target sea area designated for the exercise is not small, considering that the target of the submarine search is only a Type 033, there should not be a lot of pressure. At the same time, more than ten nautical miles away. ?The Great Wall No. 298 submarine is sailing slowly at the depth of the snorkel in accordance with the planned plan before departure. Fill the ballast tanks with water, dive to a depth of 70, and shut down the power system. ?Ma Jie, the captain, wearing only a vest and shorts, stood in the middle of the command cabin and issued a series of instructions with a stopwatch in his hand. Captain, if you turn off the power system, will they not be able to find us? The deputy captain Liu Changlin next to him looked a little worried. One of the advantages of conventional submarines is that they can completely shut down their power systems and emit no noise, making them immune to passive sonar searches. Two warships and three helicopters have demarcated the sea area in advance. If they cant even find us, Luo Zhangming might as well go home and farm. Although Ma Jie must perform the imaginary enemy mission assigned by his superiors, as a submarine officer, his last bit of dignity requires that he at least not keep the snorkel open and buzzing all the way when he knows that the two destroyers are "hunting" him. diesel engine roaring. ??Everyone knows that this kind of joint exercise has a strong performance component, but even if you are an actor, you still have to show some acting skills. A few minutes later, Great Wall 298 followed the captains instructions and entered a state of complete silence at a depth of 70 meters. ?Above the water, the two helicopters have also arrived at their predetermined locations. During the working process of hoisting sonar, the helicopter needs to maintain a hovering attitude and cannot search while moving forward. Therefore, the efficiency is not as high as expected. Anti-submarine operations are often carried out according to the jumping method of moving forward while detecting point by point. ??In the command center of the Jean Bart, Vice Admiral Laurie Vojour was paying attention to the movements of the two helicopters on the radar chart and secretly counting the time in his mind. As a senior general who was once an aircraft carrier captain, he is very sensitive to time and can even estimate the time accurately within 5 minutes without a stopwatch. ?Wuruer was originally going to see how long the imitated dolphins from China could last in submarine search operations at a distance of 10 nautical miles. ?But soon, he discovered that something was wrong. ?The initial movements of the two helicopters were almost completely symmetrical, but as the number of detection points continued to increase, differences gradually emerged in the rhythm of the submarine search. Colonel. He looked at the captain next to him: Have you noticed that their helicopters take longer to hover than ours? ??As the captain of an anti-aircraft destroyer, Captain Eric Bernalli was not actually proficient in anti-submarine warfare, so he did not immediately get the intention of his superiors. He just nodded with some confusion: You noticed it, maybe its because the people in charge of submarine search operations are not skilled enough? Worure waved his hand helplessly: That may be true, but what I mean is that their helicopters hovered for 90 seconds at the shortest time and 140 seconds at the longest time. What is the longest hovering time of the AS565 helicopter on your ship under standard anti-submarine load? He has been out of the Navy''s front-line position for some years, so he is not very clear about the specific parameters of the new equipment. Colonel Bonelli looked at the aviation officer next to him. The latter spoke quickly: 120 seconds, because the engine can only continuously output take-off power for 120 seconds at most. ifier Hearing this answer, Lieutenant General Wojru felt a little uneasy in his heart. ?His previous plans were based on the fact that the flight performance of the Chinese Navy''s helicopters was slightly worse than that of the AS565 prototype. but The reality seems not to be entirely like this... (End of this chapter) Chapter 557 Mysterious target from underwater Chapter 557 Mysterious Target from Underwater While the three of them were talking, the two helicopters conducted the next round of hovering searches. Lieutenant General Vojour took out a watch for the first time and used it to keep time. But the result is not much different from his previous mental calculation: Same as last time, another 140 seconds. There was a bit of disbelief in his tone. The so-called "flight performance" may include many parts, but for helicopters, hover time is definitely a very important indicator. ?This is quite different from what Eurocopter technicians said before. ?However, the facts are before our eyes. Neither radar signals nor time can deceive people, so there is no reason for people to disbelieve them. He closed the cover of his pocket watch with a click, raised his head again and said: This shows that their helicopters can hover longer than ours. By now, the other people sitting around the command podium should have understood what the lieutenant general meant. Let the aviation department prepare to replenish fuel and prepare for the second takeoff. The short hovering time of AS565 is mainly due to the insufficient continuous output power of the engine under anti-submarine load, and it must be increased to take-off power to maintain hovering. Pilots reported that they could last up to 10 minutes before needing to return. But this is something that only Eurocopter (and of course Icefly Group now) knows, and users do not know the details. Or at the expense of engine life, a longer take-off power output time is unlocked. He seemed to want to say something more, but he was interrupted by a radio operator sitting not far away: The aviation officer naturally knew the most about helicopters. After thinking for two or three seconds, he was the first to make a guess: So, maybe they replaced it with a more powerful engine. Have you not found the target yet? Whether it is a more powerful engine or a more extreme working state, it means greater fuel consumption. Due to the different rhythms of forward movement and point-by-point detection, the two helicopters at this time had a relatively obvious difference in position, and were about to fly to the other side of the sea area designated for the exercise. Another person then added: Generally speaking, in order to ensure safety, a certain margin will be left when performing performance calibration. After all, the aircraft is produced by the Chinese people. Just adjust the flight control program to unlock some performance limitations. So the first thing he thought of was naturally power upgrade. ?In early April in mid-to-high latitude waters, even if the air conditioner is not turned on, the cabin temperature above the ship surface is relatively suitable. Of course, Captain Bonelli didn''t know about Vojul''s brainstorming a few days ago, which he thought was a sound plan, and he just issued instructions as usual based on the situation during normal training. He subconsciously raised his hand to wipe his forehead, but found that he was not sweating. In other words, although it is quite different from what I expected at the beginning, at any rate, I should still be able to manage it in the end... right? The aviation officer shook his head. In fact, there are shortcomings in the transmission system of the original French Dolphin series helicopters. Simply increasing the engine power will not only fail to increase the actual power output, but will also be counterproductive. We have no reports of suspicious signals from either side. Could it be... ?Both guesses made the lieutenant general relax a little. ??Wuruer turned his attention back to the display screen in front of him. But Wojru, who was sitting next to him, broke out in a cold sweat. ?According to his thoughts from the past two days, the plot should be that the opponent''s helicopter could not hold on and requested to return first. To this end, when planning the plan the night before, he specifically rejected the Chinese proposal to separate the two projects of submarine search and submarine attack, with an interval of one hour in between. But he didnt want to mess around, he had planned everything step by step Because the 113 ship has double hangars, it can carry two anti-submarine helicopters. So even if the first one returns early, the second one can take off to take over the mission. It can earn face for oneself without interrupting the exercise and making it impossible to continue. At the end of the day, everyone is here to enhance relationships, not to ruin things. It''s normal to compete with each other, but it''s not good if you lose. Who would have thought that in the end, after all the calculations, it would end up on your own head. There is no second helicopter on the Jean Bart. If it returns midway, it means that the anti-submarine activities on the right front of the fleet''s navigation direction will be interrupted. ?That is not a matter of losing one person. But their aircraft hovered longer than ours...how is that possible? ?Surprised, Vojour recalled the conversation he had with Flamel before setting off. ?At that time, he also thought that he could help fellow villagers promote French helicopter products. ?Looking at it now, are you still promoting products? Its just embarrassing to spin around in circles. ??And its still humiliating oneself. The Chinese people opposite me didnt do anything, maybe they didnt even know anything, they just watched a good show. "No, when I go back, I have to bring this matter up no matter what." Worruer secretly gritted his teeth and made a decision in his heart. ?If this was the case, he probably would have endured it. After all, it was not an honorable thing. But now everyone uses similar helicopters, and others, China, still buy the technology from your Eurocopter company. In the end, the performance is better than what we use ourselves? Want some face? ??Does your Eurocopter company seem a bit suspicious of Tonghua? ??Worruer, who was a little annoyed and angry, was thinking more and more freely, and his expression became a bit gloomy. Others in the CIC on the same ship noticed that their leader was in a bad mood, but they looked at each other for a few times, and no one understood why he was so angry. After all, Warruer himself was responsible for connecting with China regarding the exercise plan. Fortunately, the solemn atmosphere did not last long. "Report, the Chinese Navy Ship 113 sent a communication. They have searched for a suspicious target, located near the opponent''s 350 direction of the ship and 20 nautical miles." A correspondent who was responsible for communication between the two ships suddenly turned around to report. There is naturally no data link system between the Chinese Navy and the French Navy. Being able to convey messages across languages ??without making mistakes is considered a tacit understanding. Fortunately, the staff officers on the French side were of good quality and marked the position on the chart almost as soon as the correspondent finished speaking. Is this goal setting so extreme? The people of Vojur are all numb. Generally speaking, this kind of exercise will not be difficult for participating warships, so the target will be placed relatively in the middle, and it will be done in one go. But the target given by the Chinese was almost located on the westernmost side of the preset exercise area. Let the helicopter fly over and use the buoy to conduct a precise search. ?Although he thought that the Chinese were a bit unethical, the lieutenant general breathed a sigh of relief and ordered the helicopter to rush over quickly. At least there has to be some sense of participation. ??Moreover, a helicopter is much more fuel-efficient when flying than in a hovering state, and the range pressure is much smaller than the submarine search process of constantly changing altitudes and performing short hovers. at the same time. On a Chinese Navy ship-borne helicopter 20 nautical miles away, four crew members were thinking exactly the same thing as Vojul. The reason why each hover took longer than the French on the other side was, of course, not really due to lack of proficiency, but the difference in the anti-submarine training methods of the two warships. ?In the French naval fleet, there will be Big Lynx helicopters with better performance and even Atlantic fixed-wing anti-submarine aircraft responsible for submarine search missions. Therefore, unless the detailed location of the target has been determined and ready to be attacked, the Panther helicopter will only use the passive monitoring mode with better concealment to avoid alerting the enemy. The 052 destroyer is one of the only two warships in the Chinese Navy with modern anti-submarine capabilities. It must be able to search and attack submarines, so every time the Zhi-9C hovers, it will first passively detect and then conduct active search. It will naturally take longer. The reason why we were able to find the current target was that we discovered an extremely weak signal anomaly during an active search, and then deviated from the preset route and tracked it all the way here. ??But as the distance gradually got closer, the passive mode of the suspended sonar gradually began to detect some weak sound signals, indicating that the other party was not in a completely silent state with the power system fully turned off. What did the ship say? ??The sonar operator in the back leaned over and asked the co-pilot on the right front. The cabin noise of this new helicopter is much lower than that of older models, and they can even communicate through normal volume instead of roaring. The French helicopter will arrive in five minutes. They have several sonobuoys and the monitoring area will be larger. "But speaking of it, those people in the submarine force are really a bit inappropriate. They knew it was a joint exercise and still stopped at such a nook and cranny. If it weren''t for good luck, they would have missed it." The co-pilot complained somewhat helplessly. "actually" The operator took a deep breath and said in an uncertain tone: I dont think this target looks like a 033 "ah?" The aircraft, which was in a hovering state, shook slightly. I have dealt with 033 too many times. As long as this boat is moving, the noise can be heard dozens of miles away. It will definitely not be like this. ??The operator looked at the not-too-obvious voiceprint on the circular screen in front of him and said. (End of this chapter) Chapter 558 Confidence in domestic equipment Chapter 558: Confidence in domestic equipment Earlier, on the other side of the exercise area, slightly closer to the middle. Underwater. In the command cabin of the Great Wall No. 298 submarine, it was as quiet as death. In fact, no submarine search equipment is sensitive enough to detect conversations in a submarine. The prohibition of talking in a silent state is just an exaggerated description in some literary works. But in a combat situation, it is indeed necessary to ensure that there are no unnecessary conversations in the command module. Captain Ma Jie lowered his head and looked at the stopwatch in his hand. After completing one revolution, the minute hand on it was about to reach three-quarters of the dial for the second time. This means that nearly 1 hour and 45 minutes have passed since their dive. ??Although as an "imaginary enemy", the Great Wall 298 boat entered the exercise area earlier than the two warships, the waiting time was too long. Captain, isnt this right? The participating fleet should have been here a long time ago, right? ??Yang Shan, the political commissar who was also wearing cool clothes next to him, said softly. ??Yang Shan also felt that the deputy captains idea was too out of tune, but it was not a problem to hold it underwater like this all the time, so he suggested: But after such a long time, nothing seemed to happen around me. How about we go up to periscope depth and have a look? After finishing speaking, he added another sentence: Its been such a long time anyway, even if we get found, we wont lose anyone. Using a compressed air bottle to inflate the float is a relatively quiet method. ??As long as there is an active sonar coming over, the target should be found. ??The captain frowned and denied. How is it possible? The sextant I personally saw is absolutely correct. A few seconds later, the reply came: The ballast water tank has begun to drain and is floating! We didnt make a mistake in our positioning, did we? However, according to the exercise plan set before the voyage, the submarine search process should only last for about 20 minutes at most. ?Vice Captain Liu Changlin immediately thought of the worst possibility. ?Ma Jie lowered his head and thought for a moment, and felt that Yang Shan was right. Drain the ballast tanks and float to periscope depth! At that time, just struggle a little and then float up. ??Now is the critical stage before he is promoted to trainee captain. If he makes such a big mistake in a foreign joint exercise, he basically can''t expect any development. However, on the old submarine 033, you can still hear some humming sound of drainage. What''s more, they almost parked the submarine slightly east of the middle of the predetermined sea area, without sitting on the bottom. ?But in this case, it doesnt matter that Ma Jie was discovered. ? ? When a conventional submarine is completely silent, the battery can last about 8-10 hours underwater, so it will not encounter the problem of insufficient energy. For modern high-performance sonar, this sound is still relatively easy to detect. Periscope depth has been reached! ??As the boat operator''s report came. Ma Jie strode to the search periscope at the front of the command module, held the operating handles on both sides, and put his forehead against the eyepiece gasket. The 033 submarine is theoretically equipped with H/SQ2-262A sonar, but this thing only solves the problem of availability. In fact, unless another 033 or similar old ship is sent to the opposite side, it will be difficult to hear anything useful. So usually the most effective reconnaissance equipment is the optical periscope. The captain still remembered that when he dived before, the bow of the boat was pointed to the west, which was the direction of the fleet''s sailing. ?However, after searching for half a week, he still could not find any trace of the two destroyers. ?Ma Jie felt a little strange and switched to the air search channel again. Sure enough, I saw an anti-submarine helicopter in mid-air. ?However, unlike what he imagined was flying towards him, the target became smaller and smaller in his field of vision, and soon disappeared directly from the skyline. Old Ma, whats going on? ??Yang Shan and Ma Jie have been partners on the Great Wall 298 boat for some years, and they are very familiar with every move of the old man. Seeing the latter holding a periscope and looking in the same direction for a long time, he also felt that something was wrong. The latter took a step back and returned the periscope to its original position: I saw the submarine search helicopter gain altitude and fly away very quickly. "ah?" Generally speaking, if an old submarine like the 033 is really tracked nearby by a modern anti-submarine unit, there will be basically no room for a comeback other than sitting on the bottom and waiting for a miracle. ?But just now they did not hear the sound of the sound waves emitted by the active sonar hitting the side wall of the submarine. ??The three members of the command team looked at each other, and they all saw a bit of confusion in each other''s eyes. Logically speaking, as the imaginary enemy in the exercise, they should face the joint strangulation of surface ships and helicopters in this case. But now it seems that the whole world has forgotten them. Navigating in snorkel status, maintain current course, advance two. ?Ma Jie took a deep breath and gave the car bell command to start the main engine: Go and see what theyre doing. ??Just when a few people in the submarine were completely confused, the CIC on the Daocheng ship was already very busy, and indeed no one cared about there being one of their own submarines in the exercise area. ??Originally, when they just received the news that the helicopter had discovered the underwater target, everyone just regarded it as a normal acting process, and followed the previous arrangement and called for the Barr to go for reinforcements. ?Although the performance of French military helicopters is not as good as that of the upgraded Z-9C, the several active and passive sonobuoys on board are still very effective equipment for searching for submarines in a large area. ??China agreed to arrange joint anti-submarine exercises this time, and also had the purpose of examining how developed countries use sonobuoys. ?However, before everyone could breathe a sigh of relief, another shocking news came from the helicopter. The sonar operator of unit 9686 reported that the detected target characteristics were not Type 033 submarines. The radio operator''s words instantly made the atmosphere in the cabin become solemn. ??Yang Shuyu, who was joking with the captain, instantly sat upright. Can you determine the ownership of the target? Captain Luo Zhangming was the first to ask. ??Yang Shuyu was the Chinese commander-in-chief of this joint exercise, but the situation at hand was obviously beyond the plan, so the command authority defaulted to the captain who was more familiar with the ship''s situation. No. 9686 said it is not possible yet, but it should be a conventional submarine that is not very large. They are continuing to track it. Luo Zhangming''s brain was running rapidly. The only conventional submarines that can appear in the East China Sea, apart from our military, are South Korea or Japan. ?? Today''s joint military exercise, because it involves the use of weapons, must publicly notify the scope of the exercise in advance. The Type 052 is Chinas most advanced surface battleship currently. ??It is normal for some underwater villains to sneak around and try to collect some information. Confirm, how long can No. 9686 last? ? In the past, the Daocheng was equipped with two AS565 anti-submarine aircraft that were exactly the same as those of the French army. According to Luo Zhangming''s experience, the fuel would basically be exhausted by this time. As for anti-submarine, if the search pressure cannot be sustained, it will be difficult to find the opponent once he runs away in a certain space. The pilot said he should be able to conduct a submarine search mission for 15 minutes before returning home. The radio operator reported something that shocked Luo Zhangming: Can we still fly for 15 minutes? ??The naval ship force and carrier-based aircraft force are organized separately and are only together when they go to sea to perform missions. These two Z-9Cs were both delivered at the beginning of the year. Originally, he was a little worried about the performance of the domestic models. But now it seems that the performance is better than the original one... At this time, the naval aviation officer next to him interjected appropriately: When the Z-9C was delivered before, according to the technical manual given to us by the Ice Aircraft Group, the range and take-off weight were indeed much better than the imported AS565. As if to confirm this statement, the liaison officer responsible for communication between the two ships immediately reported: The Jean Bart contacted us and stated that their helicopter needs to return after launching the sonobuoy, and it will take at least twenty minutes to prepare before taking off again. Obviously, Luo Zhangmings judgment just now was correct. This newly delivered domestic model indeed performs better than the original one. At this moment, he was suddenly full of confidence in the new equipment in his hand. For a new piece of equipment, especially domestically produced new equipment, it takes a process for commanders and fighters to go from being able to use it, knowing how to use it, to daring to use it. Generally speaking, this confidence needs to be achieved slowly during use and training. Only this time, due to the stark comparison with the French army next door, the process was completed in one step. As a result, a bold idea gradually formed in my mind Allowing a submarine in submersible state to come within 20 nautical miles of the fleet in exercise state can already be said to have shown considerable hostility. After all, this is already within the range of quite a few anti-ship torpedoes. ?Furthermore, if it were not for some mistake and the helicopter used active sonar to search for a location near the border, they might have succeeded. Therefore, this sneaky opponent must be taught some lessons, otherwise he may have to push further next time. But having said that, this is not a territorial waters area after all, and it cannot really be sunk by others... Notify the aviation department... to prepare for the flight of aircraft 9696. ?Luo Zhangming organized his thoughts and quickly issued combat orders: Also, hang two torpedoes and go out. One live bomb and one mine! (End of this chapter) Chapter 559 Hunting the Maritime Self-Defense Force! Chapter 559 Hunting the Maritime Self-Defense Force! After giving this order, Luo Zhangming glanced at Yang Shuyu who was sitting next to him with some worry. Take off with live ammunition, and in non-territorial waters. In fact, there are still certain risks. Seeing that the latter was looking down at the chart in front of him, and did not stop the staff officer next to him from sending the order, he was relieved. ?It wasnt until the series of instructions and replies came to an end that Yang Shuyu asked: If two rounds of ammunition are hung at the same time, will the time to perform the mission be affected? Also, if you can finally catch the other party, how are you going to deal with it? As a senior commander who has been away from front-line command positions for some years, he needs to control the command of the ship very accurately. Neither interfere too much with the captain''s command and dispatch as a professional, nor interfere too roughly, affecting the captain''s authority in the minds of the commanders and fighters on the ship. But at the same time, it should also serve as a stabilizing needle to ensure that the situation is within control. Facing the question of the deputy commander of the navy and the pressure from unidentified foreign submarines, it is impossible to say that he is not nervous. Meanwhile, about 20 nautical miles away, beneath the surface. This is actually an order from the Seventh Fleet. But in the past, the actual performance of the Chinese Navy''s equipment was always at a discount compared to what it looked like on paper. The friendly aircraft is located in the direction of our ship, 20 nautical miles away. We need your aircraft to support us quickly. The task naturally fell on Hai Zis head. ? Another troublesome thing is that in order to better collect hydroacoustic data, the Winter Tide aimed its bow at the two destroyers head-on. Now this awkward position makes it difficult to retreat. In addition, about 55 nautical miles away, there is a louder underwater target, like a train, but it is not fast and should not pose a threat to us in a short period of time. Captain, sonar has detected a surface target using a medium-speed diesel engine about 40 nautical miles away, approaching us at a speed of 25 knots. The captain of the submarine SS588 Winter Tide, Second Class Haizawa Yoji Hayakawa, was in the command module, his eyes fixed on the display control screen of the ZQQ-5B digital sonar system in front of him. Let me emphasize again, this is not an exercise, there is no plan, and there is no predetermined sea area. Use your special skills. Dont let the target escape under any circumstances! Captain, are we going to sit on the bottom, or... As for what to do if you find the other party ?Hayakawas face was gloomy, but his tone was quite calm: This target itself is not a big threat, but unfortunately, the noise of the diesel engine completely covered up the sound of the gas turbine of the other destroyer with it..." ?However, now, Captain Hayakawa actually does not need this advanced equipment, because even with just his ears, he can hear the sound waves from active sonar hitting the submarine shell. "Calculating the time, the helicopter above us now should be about to run out of fuel and return. There may be another one coming to take over. But before I set off, I studied the French-produced helicopter. In the submarine search state, Cant hold on for too long. ?This kind of torpedo was imported from Italy in the late 1980s to fill the vacancies before the Yu-7 torpedo entered service. There are only 40 in total, which is very valuable. "Although this is not territorial waters, it is also our exclusive economic zone. In any case, if the submarine runs to our pre-demarcated exercise area while submerged, it is a naked provocation. Therefore, I think we must at least force the other party out of the water. No!" So I have never dared to push the performance too far. On the flight deck, after the first helicopter took off, the second helicopter No. 9696 was already preparing to take off just in case. "yes!" Winter Tide has quite advanced anechoic tiles laid on its surface. At this distance, the hoisting sonar used by ordinary helicopters is not enough to accurately detect this silent submarine. The first mate of the boat, Kenjiro Hayashihara and the third class Kaizuo, reported not far away. ?? Now after receiving the new order from the captain, it is only necessary to mount another A224 torpedo live ammunition. The voice of the flight controller came from the radio equipment of the three crew members: Luo Zhangming took a deep breath: "Based on the experience given by the aviation department before, the new helicopter will not have any impact on the basic flight performance in the manual with the standard mount of two radars and hoisting sonar, and it can also ensure that it can complete a mission within a combat radius of 50 nautical miles. Standard submarine search-submarine attack process. The diesel surface target should be the French Navy destroyer. For submarine officers, this sound is almost a death knell. So in accordance with the standards of the technical manual, we chose to hang an extra live ammunition to deal with various possible emergencies. Until that moment, he suddenly felt confident. ?According to the results of sonar analysis, the sound source location should still be about 15 nautical miles away. ??However, it is difficult for a huge nuclear submarine to be deployed in the East China Sea, where the water depth is relatively shallow. ??The purpose of the Dongtide''s voyage this time is to lurk at the edge of the exercise sea area designated by China and wait for the opportunity to collect as much target information characteristics of the Daocheng destroyer as possible. A few minutes later, the helicopter took off and flew quickly towards the direction of the two warships. ?Luo Zhangming hesitated for a moment, and then replied firmly: The three of them answered in unison. The former shook his head slightly: "Don''t be in a hurry to sit down. The two destroyers will not arrive nearby for almost an hour. We have to maintain our mobility." ?Compared to the experienced Hayakawa, First Officer Hayashihara joined Haizi in 1992 and had never experienced a battle of wits and courage with the Red Navy. Naturally, he was a little panicked when encountering this situation. Compared with the old sonar, which can only detect and analyze targets by the sonar operator''s ears, the latest digital sonar can more intuitively display the environmental data captured by underwater acoustic equipment like radar. In fact, he had heard these data from people in the aviation department before. But if this continues, as the other party''s search range expands, it will only be a matter of time before it is discovered. "When the two helicopters take over the mission, we first turn the bow of the boat 90, and then when the second helicopter returns, they will have a window for searching for submarines. At that time, we can leave at full speed. " The battery of the Winter Tide can support the submarine to sail at an underwater speed of 22 knots for more than an hour. Thanks to the excellent appearance design and low-noise propellers, the submarine can ensure extremely high quietness when using the battery. Its enough to leave this relatively dangerous sea area. ?Hayakawa''s calm speech restored the calm and orderly atmosphere in the entire command module. ??Although generally speaking, submarines have little ability to resist the anti-submarine mode of ship-to-aircraft cooperation, the technical level of the Sea of ??Japan in the 1990s was so much higher than that of the Chinese Navy that a tie seemed... Its not unimaginable. ??What excites the crew of the Winter Tide even more is that Hayakawa''s timing is very accurate. During a significantly longer sonar detection interval than before, the submarine finally completed a difficult 90 turn. Next, all we have to do is wait until the second helicopter runs out of fuel and the next time window appears. It should be said that there is nothing wrong with Hayakawa Yojis plan on paper. ?However, he didn''t know that the first helicopter that had just left had already been conducting submarine searches for a period of time before tracking him. Therefore, there are some problems with rhythm control... "Captain, 20 minutes have passed. Why does that helicopter... not have any intention of retreating?" As time passed by, the command module, which had just regained its composure, became tense again. ?In the extended spiral submarine search mode, the helicopter''s current position is only about 10 nautical miles away from them. In principle, the ability of hoisted sonar to judge the direction of a target is relatively weak. If there is only one helicopter searching for submarines, even if the distance to the target is discovered using active mode, it often requires multiple measurements to finally determine the specific location. But 10 nautical miles is really a bit too close. ? Even Hayakawa himself gradually began to doubt his previous judgment. Captain, if this continues, the opponents destroyers will get closer and closer... The first mate''s voice sounded next to him again. ?Compared to ship-based helicopters whose air time is ultimately limited, conventional submarines will lose if they are entangled by surface ships. There is almost no other way than to surrender. Hayakawa originally wanted to find the safest way to leave, but the opponent''s helicopter stayed in the air for far longer than expected, which made all previous plans come to nothing. Under tremendous pressure, he finally changed his mind: Start the battery and maintain a speed of 4 knots. ?However, this decision was made a little too late... ?Above the water, the French AS565 helicopter, which was the first to return to replenish its losses, returned to the mission area. Although there is no data link, the pilots of the two countries can still communicate in awkward English through the most basic radio. In fact, aircraft No. 9696 has detected the existence of a target about 8-10 nautical miles away, but it has never been difficult to determine the direction. Therefore, the Chinese sonar operator who waited for 20 minutes and finally waited for support asked the French helicopter to drop another wave of sonar buoys. The latter was completely unaware of the situation and still thought it was part of a normal exercise, so naturally he did as he was told. They even brought a few extra buoys with them during takeoff this time, trying to save some face for returning early. "Look at these Chinese people. Although their naval equipment is not advanced, the content of the exercises is so realistic..." The pilot of the AS565 helicopter said with a slightly emotional tone while launching the buoy in a circular route. The co-pilot next to him also agreed: Yeah, its even more like an actual battle than a NATO joint exercise. When I was talking to them on the radio just now, I felt some tension. It seems that after the end of the Cold War, our navy has been too relaxed, and many exercises are just a formality... It must be admitted that, at least in terms of exercises, we have completely underestimated the seriousness of the Chinese people... ?Although active and passive sonar buoy arrays lack accuracy and sensitivity, thanks to the fact that many are thrown out at one time, the search efficiency is much higher than that of suspended sonar. Soon, the French sonar operator discovered an accelerating target at a depth of about 60 meters underwater. ?Two helicopters quickly rushed in that direction... On the underwater Winter Tide, Captain Yoji Hayakawa knew that things were going to be bad when he heard a total of eight things entering the water. Sure enough, within a few seconds, sound waves from several directions hit the surface of the submarine. ?This time, I cant hide it no matter what: Quick, move forward at maximum speed! The ballast tank is filled with water, and the diving depth increases to 100 meters! Also, put the unmanned underwater vehicle (UUV) out and use decoy mode! ?Following his order, a small unmanned submarine fixed behind the hull of the Winter Tide broke away from the mothership and then headed in another direction. Because the bait mode was turned on, its propeller left a long series of air bubbles behind it. ?While attracting sonar attention, it can also have a certain shielding effect on the mothership itself. Sure enough, the sonar operator on the French helicopter quickly lost his original target. The Chinese also arranged submarine decoys in the exercise? The three French soldiers on the helicopter were already a little doubtful about life. But no matter what, today is here. The dignity and face of soldiers require them to fight this "imaginary enemy" to the end. ?After a brief communication via radio, the two helicopters began to use hoisting sonar simultaneously to conduct submarine search operations in accordance with the circular search mode of dual-machine collaboration. ?Not long after, the third helicopter, the returning No. 9686, also joined the search team. In this case, the bait, which does not have a long action time, naturally cannot always guarantee the safety of the Winter Tide itself. ??The sound waves emitted by active sonar are like beating gongs and drums, resounding in the ears of the entire submarine crew. 100 meters underwater, this scene is definitely like a horror story. ?Hayakawa still wanted to use up the last bit of battery power. ?But he soon heard the heart-stopping payoff. 3 nautical miles, the projectile entered the water, the speed was 30 knots! Everyone knows that this is an anti-submarine torpedo. Before everyone could react, they heard a sound far louder than any previous sounds, as if a gong was hitting their ears. Captain Hayakawa shivered, and it took him a while to realize the source of the sound The torpedo struck, but did not explode. It should be a mine. Even so, the moment the sound rang out, some people with poor psychological quality fainted in the command module of the Winter Tide. ? Hayakawa couldnt guarantee that if he persisted in not refloating, the next time he dropped it would be a live ammunition. Furthermore, the battery capacity is no longer optimistic. What a bunch of lunatics ?Hayakawa sat slumped in front of the podium: Float, float immediately! (End of this chapter) Chapter 560 successful anti-submarine warfare Chapter 560 Successful Anti-Submarine Warfare A completely black submarine slowly emerged from the water. Then, less than two nautical miles away from the nearest helicopter, the bow of the boat rushed out of the sea first, and then slammed into the water, splashing a burst of white waves. . This is the power-floating attitude of a submarine in an emergency, similar to the climbing process of a fighter jet. Compared with relying solely on buoyancy, this process is much faster. The three Frenchmen on AS565 stared dumbly at what was happening in front of them. ??The pilot was so shaken that he almost sent the crew and the plane away: Is this a Chinese submarine? ?The conscience of heaven and earth, he is just a helicopter driver. Not even dedicated to flying anti-submarine helicopters. In addition, since the French navy was driven away by the equally powerful Vietnamese, it has hardly been to Asian waters. It is normal to not recognize these submarines that seem to be similar at first glance. Actually, a few minutes ago, he had already realized that something was unusual. ?Although the mine does not have a warhead, it may still cause some malfunctions if it directly hits the submarine. ?This time facing the most cutting-edge Harushio-class submarines from Hainan, although the speed of effective response was slightly slower, the response after discovering the target was still quite effective. But generally speaking, being able to discover in advance and force the submarine to surface actively basically means complete victory. We and the Chinese Navy blew up a Maritime Self-Defense Force submarine! ?His whole body was numb. He quickly grabbed the radio next to him and put it on his head, preparing to report the incident to the Jean Bart, which was more than ten nautical miles away. Then confirm that it is really Spring Tide level. What an imaginary enemy, its real! ?This imaginary enemy is a little too real. The sonar operator also found it unbelievable, so he directly opened the door on the side of the helicopter and stuck half of his head out to take a closer look. As a result, just as they reported their position, they saw a torpedo being dropped... The operator returned to the cabin and roared to explain to the two companions in front who were still confused. Compared to the two pilots, he is the one who is really responsible for anti-submarine warfare. ??The outrageous plot development made it difficult for the two pilots in front to think straight: Can the Chinese invite Japanese as imaginary enemies in exercises? filsdeputeThis is a Harushio-class ship! Furthermore, in the exercise plan, submarine attack and submarine search are also separated. At the same time, the atmosphere in the other two Chinese helicopters was naturally joyful. No matter how close the exercise is to actual combat, it shouldnt reach this level, right? Now this submarine suddenly emerged, which has deepened this ominous premonition. This submarine was here to monitor our drills, but it was accidentally discovered by the helicopter responsible for searching for submarines! Wrong, ten or even nine points is wrong. In a state of fighting without defeat, there are various types of games between submarines and anti-submarine. The anti-submarine sonar operator sitting behind him was completely confused. So, after the splash of water disappeared, I almost immediately recognized the submarines identity: Definitely a blushing face. Quick, does any of you have a camera? The pilot of aircraft 9686 asked on the radio. Because he saw several crew members appearing in the hull of the submarine, holding a Hainan flag in their hands, as if they were preparing to hang it to identify themselves. Judging from their dejected expressions, it was obvious that they were frightened by the round of gongs and drums just now. In peacetime, if this scene was filmed, it could be counted as a record after returning home. ??These ship-based helicopters, which are numerous in the North Sea Fleet Aviation Force, are actually used more often for verification, search and rescue, and aerial photography than for anti-submarine warfare, so they often carry an ordinary film camera in the cabin. ?Unit No. 9696, which was flying around the submarine on the other side, quickly responded in the affirmative. The photo has been taken! Today is truly a day worth remembering ?The pilot sighed with emotion as he looked through the side window at the slightly embarrassed submarine on the water that had raised its military flag. Soon, the outcome of the incident was conveyed to the two warships that were approaching quickly. The pilot reported that the submarine had been forced out of the water, and it was judged to be a Harushio-class submarine of the Maritime Self-Defense Force, but because there were no markings on the submarine, there was no way to figure out which one it was. ??The radio liaison officer turned around and reported the news to everyone in CIC. Everyone was naturally refreshed. "good!" ?Captain Luo Zhangming made a fist with his right hand, hit it on the palm of his left hand, and made a "pop" sound: Just catch it! The contest between the surface and underwater is generally something that both sides tend to keep secret. In fact, China has not even solved the most basic fleet air defense this year, and anti-submarine treatment is almost completely abandoned. Except for the two 052s, there is basically no third warship that can pose a threat to modern submarines. In fact, to expand the scope, these two 052s are also the only two warships of the Chinese Navy that can barely be called "modern". As a comparison, just last month, the Maritime Self-Defense Force just commissioned the fourth Kongou-class destroyer Chokai equipped with the Aegis system. There is a direct generation gap with the Chinese Navy in terms of equipment level. For Chinese naval officers in this era, not to mention the other side of the ocean, even Haizi can be regarded as a first-rate powerful enemy. However, no matter what the overall strength is, at least today, a win is a win. If you can''t afford it, practice more. If you can''t afford it, don''t play it. However, the surprises are not over yet. A moment later, the radio operator continued to report: In addition, No. 9696 also reported that they had taken photos for evidence and left behind image data. At this moment, even Yang Shuyu, who had been sitting firmly next to the chart table, clenched his fists excitedly and said to Luo Zhangming next to him: When I go back, I will personally ask for credit from you! You must know that in similar confrontations in the East China Sea in recent years, limited by the gap in equipment levels, there were not many opportunities to take advantage. Let alone a complete victory like today. The French asked us what happened to that submarine? Just then, the liaison officer turned back from a short distance away and asked the people celebrating here. ??Everyones eyes were focused on Yang Shuyu. ?Now that the anti-submarine warfare has been successfully concluded, the command has naturally returned to him. The truth, of course, cannot be told. But dont make complete nonsense. After thinking for a moment, the latter raised his head: Tell them that we dont know yet and need to investigate slowly after we go back. We have always regarded this submarine as the imaginary enemy of this exercise. When Lieutenant-Admiral Vojour on the Jean Bart received this answer, he almost laughed. ?According to the report from the helicopter just now, after finding the target, the Chinese Navy''s anti-submarine helicopter dropped a torpedo almost without hesitation. Even if it is not loaded with explosives, it is definitely not the attitude to face an "imaginary enemy". So, perhaps at the beginning, the Chinese Navy did not know the situation clearly. But then they must have had a clear conscience. ?But in this kind of thing, you cant tell the truth after seeing through it. If you run into an area where others are conducting exercises while in submersible mode to conduct reconnaissance, you will have to consider yourself unlucky if you are discovered. It would be embarrassing to ignore it. It would be too late for the sea to cover itself, and it would be impossible to publicize it everywhere. With this reply from the Chinese, at least he won''t have to take the blame after he returns, and he can even let his superiors cause trouble for the Japanese. You must know that this is a joint military exercise. ? Being approached by a submarine for reconnaissance within 20 nautical miles is not only a provocation to the Chinese Navy, but also to the French Navy. Its okay, its not like our French navy has never fought against the Japanese. Someone next to me whispered this. Huh? Is there such a thing again? When? Obviously not everyone is very familiar with the history of their own army. In 1944, the battleship Richelieu bombarded the island of Sumatra. Unfortunately, the Jean Bart had not yet been completed at that time, so she did not catch up..." Speaking of which, our No. 1 ship is not called the Richelieu. The conversation was conducted in a low voice but could be heard by everyone, which made the atmosphere in the entire CIC much more relaxed. In the final analysis, the French in this era are trying to be on an equal footing with the United States, so naturally they cannot regard Japan as a true ally. ??Anyway, he didn''t suffer a loss in this matter. After returning home, he could polish up the report a little, which might become capital for him to be promoted in the future. Thinking of this, Lieutenant General Wojru''s mood improved a lot. Okay, lets just write the memo as they say (End of this chapter) Chapter 561 Salvage the loot Chapter 561: Salvage the Trophies at the same time. Farther out on the sea, the Great Wall Boat No. 298, which had been almost forgotten by everyone, directly entered the surface navigation state. Captain Ma Jie put on a thin cotton coat, leaned half out of the enclosure, and was holding a telescope to search the surrounding sea. He even began to wonder whether he had really made a mistake in positioning and had taken the whole boat to the wrong sea area. Captain, would you like to try using the radio? Can you contact the surrounding fleets? ??The voice of Deputy Captain Liu Changlin came from below with some echoes. Submarines are basically unable to carry out any effective communication underwater and can only receive extremely sparse information through ultra-long wave radio stations. It is generally some pre-agreed letter combinations, 4-6 bytes in length, corresponding to some simple meanings. For example, return to sea, go to **** sea area, allow attacks, etc. It was another sound coming from under my feet. ?Ma Jie put on his life jacket, led several staff officers and sailors to the boat, and used a long hook to reach the thing to the side of the boat little by little. Theres a thread trailing behind this thing. Isnt it dangerous? Submarines on the surface can use radios, but due to power issues, the communication distance is not optimistic. The mine? ?Ma Jie gave a negative answer in a loud voice: Just when Ma Jie was debating whether to follow the advice of the deputy captain, he suddenly saw a yellow cylindrical object floating on the sea at the edge of the telescope''s field of view. New guesses are given below. After explaining, he shouted two trumpets in succession and led several people on the boat to fish out the thing. No, its very big, and if they had dropped the sonobuoy just now, we would have been discovered long ago. Lets go over and have a look. In the 1990s, the Yu-6 torpedo with a wire-guided function was in the iterative stage of relaunching the plan. The earlier Yu-5 only had an export version and no personal use version, so ordinary sailors of the Chinese Navy had no idea about wire-guided equipment. It''s also normal. A suspicious object was found in direction 45, about 5 chains away! There are several pieces of glass on the control tower of the 033 submarine. If the view is not too bad, you dont necessarily need to climb outside. "It''s even more impossible. No one would place mines in the ocean, and floating mines don''t look like that." Ma Jie climbed directly back to the command cabin along the ladder and threw the telescope to Liu Changlin next to him: No, dangerous things would not be painted in such an obvious color. The line at the back must be a control line, similar to the Armys anti-tank missiles. Although the Great Wall 298 boat lags behind a bit in terms of technology, the Chinese Navy''s boat maneuvering skills are still good. They quickly followed the captain''s instructions and accurately arrived at the unknown floating object. Could it be the buoy dropped by the helicopter before? Generally speaking, submarine officers are trained to complete all tasks alone from the first day they set foot on duty, so contacting friendly forces is rarely their first priority. ??However, as a captain, Ma Jie can still keep up with the development of cutting-edge technology. But the thin cable at the back was very long, and even after the deputy captain pulled it for a long time, he could not completely reach the source. "This wire should be broken. Generally speaking, the length of the wire can be more than ten nautical miles. Cut it off quickly to avoid being thrown behind and entangled in the propeller later." After another flurry of activity, I finally got this round thing. So what is this? Like a small submarine. You see there are foreign characters on it. What did you write? I cant understand it, but I guess its something from the Yankees. What bad things are the Americans doing around us? No matter what, we must take it back and study it. "But this thing is too big and can''t fit into the boat." Several people on the boat gathered around and started discussing. After turning around a few times, Ma Jie stretched out his hand to stop the buzzing voices around him: We definitely have to take it back. We are still sailing on the water anyway, so we will put it on the deck first, but we need to find a rope or something to fix it to prevent it from falling. Shortly afterwards, he turned around and looked at Liu Changlin behind him: Vice Captain, go and notify the correspondent, let him try to contact the fleet, and then inform them that we have picked up an object. "yes!" Liu Changlin stood at attention, then turned around and trotted back to the enclosure. Ma Jie, who stayed on the boat, led others to try to fix the round thing to the railing of the boat. The other side. The appearance design of modern submarines is specially optimized for underwater navigation. Coupled with the existence of wave-making resistance at the waterline, the speed above the water surface is very slow. ?The Winter Tide, which has a maximum underwater speed of more than 20 knots, has a maximum speed of only 12 knots on the water. Therefore, it did not take long for the two destroyers Daocheng and Jean Bart to catch up with the Winter Tide, which was sailing on the surface, and "escorted" the latter completely out of the exercise area in a left-right manner. ?During this period, not only the Chinese Navy, but also the French navy crew members on the Jean Bart took many photos as souvenirs. I am afraid that for a long time from now on, the Maritime Self-Defense Force will no longer dare to make trouble in the exclusive economic zone of the East China Sea. The Pacific Ocean is indeed very lively... ? Lieutenant General Vojour, who walked up to the deck, said with emotion. Since 1991, there have been few such exciting scenes on the Atlantic and Mediterranean sides. Today''s round of joint anti-submarine exercises was a bit too real, but it made Wojru, who had been away from the front line for a long time, recall the days when he commanded the fleet and battled wits and courage with the Red Navy nuclear submarines. After the old rival suddenly disappeared, I still missed him... After a brief emo, the lieutenant general turned around and said to the captain behind him: "By the way, let me ask the Chinese Navy if they want to continue the second half of the exercise?" Actually, I knew that if something like this happened, I would have to go back to Hong Kong. What''s more, from the perspective of "joint training", today''s gains far exceed those of step-by-step exercises. Hence, the Ice City, which was nearly one kilometer away, quickly responded by suspending the exercise and preparing to return. Deputy Commander Yang, Captain, we have just received news from the Great Wall 298 boat, asking about our current location and why we have not found them. In addition, they also said that they fished something like a small unmanned submarine from the sea and asked us what to do with it. Hearing the radio operator''s report, several people remembered that when they were busy hunting Self-Defense Force submarines, they completely forgot about the Great Wall No. 298 as the imaginary enemy. The latter should still be completely in the dark... Ahem ?Yang Shuyus expression was a little embarrassed: Let boat No. 298 send the position, and we will go find them to meet up. As for the thing they caught At this moment, Luo Zhangming, who was next to him, leaned into his ear and whispered: Deputy Commander, the crew of the anti-submarine helicopter just now reported that after the submarine was discovered, it fired something similar to a bait, which is presumed to be an unmanned submarine. "If it happens to be picked up by boat No. 298, I think it can be taken back for study. However, their boat is too small. The helicopter will take off again later and transfer it to our ship." ?Yang Shuyu thought about it for a while and felt that this should be the safest way: Well, lets do it! (End of this chapter) Chapter 562 GPS military navigation module, now available Chapter 562 GPS military navigation module, got it After all, it was peacetime and it was not within territorial waters, so in the end, after escorting the Winter Tide for a certain distance, the two destroyers blew their whistles "politely" and turned around 180 to prepare to return. About half an hour later, No. 9696 Z9C, which had just successfully completed the "simulated" anti-submarine mission, took off again and found the Great Wall No. 298 boat that had been waiting for a long time. Prepare to transport the captain Ma Jie and the unmanned submarine weighing about half a ton back to the 113 ship. By the way, it can be regarded as completing the preset anti-submarine exercise mission in another way. Because of concerns about confidentiality issues, Ship 113 just asked Great Wall Ship 298 to report its position on the radio and wait, without explaining in detail what happened. It wasnt until they got on the helicopter that the two pilots told the wonderful story of their brave battle against the Harushio-class submarine. ?Of course, some necessary embellishments are definitely indispensable. So, you are saying You mistook a Maritime Self-Defense Force submarine for us, and then fought around for nearly an hour, and finally... forced them to surface? Ma Jie, who had put on a training uniform, was dumbfounded as he listened to the story the co-pilot told him: You...are not fooling me, right? In this era, allowing the Japanese to suffer such a humiliating loss is definitely something worth bragging about for a lifetime. ??If they had not taken into account the rules of confidentiality, the two of them would have told everyone about how they blew up a submarine. ?Yet he and his sub missed all the excitement and didn''t realize it until the dust settled. Comrade Captain, let me tell you, you didnt see how embarrassed they were when they first surfaced By the way, Comrade Captain, we also took photos. Do you want one as a souvenir? At least lets have a sense of participation, right? "of course not." There are only 10 nautical miles between us Then, in order to improve the persuasiveness of his story, he pointed to the bottom of the plane: Like an outsider. ?Ma Jie looked at the calm ocean outside through the side window. "What you just caught is the bait that the submarine put out after it was discovered. I guess the wire was cut by the propeller or something in the chaos, so it drifted to you along the ocean current." "I" Why didnt you inform us? ?Ma Jie felt like she was holding a thousand words in her chest, but she didnt know where to start. Ma Jie, as a person who theoretically "participated" in the whole incident, but who actually knew nothing about the situation, became the perfect target of narration (showing off). Finally, it turned into a series of extremely unwilling questions: But not long ago, there were still undercurrents under the water. We are lucky, otherwise if we go back and look for it now, we will literally be looking for a needle in a haystack. The first officer shook his head. ??The co-pilot who had been talking endlessly just now suddenly fell silent. Just when Ma Jie felt that the other party was speechless because of guilt, the voice sounded again: I didnt say that, comrade captain. At first, we thought that the target was you. Later, when we discovered that something was not right, the situation was already very urgent. The fleet directly entered the real anti-submarine warfare state, and there was really no time to contact you. Secondlyto be honest, your 033 submarine does not have anti-submarine capabilities. Not only will it not be of much help, but the noise will also affect our normal submarine search process ?Lies will never hurt, the truth is the sharpest knife. "I" ?Ma Jie opened his mouth to refute, but was speechless. He suddenly didn''t want to talk to these two people. But the other party insisted on continuing to talk... Speaking of which, your plane is very quiet. We can hear normal conversations like this. ?Ma Jie couldn''t bear it anymore and decided to change the topic to prevent his blood pressure from exploding: I have flown on an Army Air Corps helicopter before, and my ears hurt after sitting on it The new phone that was installed at the beginning of the year is naturally different from the old model from decades ago. As expected, the two pilots stopped talking about what happened just now and started talking about their new equipment: Speaking of which, the fact that we were able to capture the submarine so quickly this time was thanks to the new aircrafts long enough range, which is better than the original French products imported before. In addition, the sound is also small, and the sonar will not be interfered by the mid- to low-frequency noise of the rotor. I heard that the fixed-wing aviation arm has received many new aircraft in the past two years. It is said that at the end of June last year, the South China Sea Fleet aviation arm also conducted a simulated raid on the British. I have also heard that it seems that it was a long-distance attack of more than a thousand kilometers, and there was also an in-flight refueling. In the end, there was a bold man who threw the auxiliary fuel tank into the middle of other peoples fleet and hit a few floats..." After the successful end of the embankment building operation, it was originally planned to report and commend the participants within the army. ?? But this matter later became too involved, and even eventually led to the replacement of a new prime minister in Downing Street who was relatively friendly to China, and handed over many olive branches as soon as he took office. So in the end both parties decided to cover up the matter together. ?However, paper cannot stop the fire, and it is still possible to keep it secret from the outside world. However, within the naval aviation system, some rumors have been heard. After all, the 25th Hainan Airlines Regiment and the Special Aircraft Regiment were promoted to nearly three digits at the end of last year. Anyone can guess that there is something going on. By the way, comrade captain. The co-pilot turned back and looked at Ma Jie sitting behind him: I think in the past two years, it seems that the speed of equipment replacement of various services and arms has increased. Do you have any intention of replacing your submarine force with new equipment? The latter took a deep breath. TMD, the fist is hard. What happened on this day was reported to the top management after returning home that night. ??Together with the captured unmanned submarine, they were also sent to the research institution in the capital. Within two days, Chang Haonan, who was personally supervising the design work of the turbofan 10 in Shengjing, received an internal call from Ding Gaoheng. Xiao Chang, what you told me before about the need for original military GPS satellite positioning modules has now been taken care of. Chang Haonan, whose mind was still full of blade shapes and flow separation parameters, was stunned by this straight-to-the-point sentence. "So fast?" ??Although the GPS navigation module is not very strictly controlled as a device that only receives but does not send signals, the P code can only be used by the US military and its core allies. Before 2001, it was definitely not a popular product. You know, it has only been more than a month since he told Ding Gaoheng about this. ?This efficiency is a bit too fast. "We will discuss the more detailed part when you have time to come back from Shengjing. In short, we obtained an unmanned submarine produced in the United States from the Maritime Self-Defense Force. After dismantling it, we found that there were two complete sets of military navigation systems on it. module, just what you need. Chang Haonan quickly calculated his future work arrangements: My own words...the development of Turbofan 10 is currently at a difficult stage, and we wont be able to go back until next week. However, the person in charge of the development of the GSP jamming equipment now is Comrade Xu Yang from our Torch Group. You can let her do the docking first, and build a prototype of the equipment as soon as possible to test the actual effect! (End of this chapter) Chapter 563 The potential of turbofan 10 Chapter 563 The potential of turbofan 10 The first prototype of the GPS jamming equipment has actually begun trial production at the 14th Institute of Electronics. ?However, without a military GPS navigation module at hand, currently only the crudely captured C/A code can be reversely identified. ??But the problem is that the C/A code itself is completely public, and there is no need for the complex algorithm developed by Chang Haonan and Xu Yang to do forwarding interference. The effect of directly using generative interference is also very good, and the cost is lower, because there is no need for real-time translation, just generate it in advance and then send it out when needed. So the prototype only reached the last step and did not continue. Now we can finally complete the last step. ??Moreover, since I got two sets at once, I can even keep one set for testing the interference effect. I have to say that I am very lucky. ?However, Xu Yang does not have a confidential line at the moment, and this matter involves content that is not convenient to talk about on the public line, so Chang Haonan had to entrust Ding Gaoheng to inform him of the whole matter. After the conference in March, the group reform of the five major corporations in the military industry system was officially put on the agenda. Even the nuclear industry and ordnance industry corporations, which are relatively easy to split, have begun the transformation process. ?At this juncture, several newly established group companies naturally hope to obtain more convincing technologies to make a good first start. According to the supply agreement, other subsequent equipment and production lines will adopt a similar approach to the J-11, gradually increasing the localization rate, and eventually achieving full production in China. ?That is a turbine blade that has been coated with titanium nitride. ?Hand held a few pieces of paper and a shiny component ?However, this kind of thing is probably more sensitive. Even in the confidential line, I can''t say it directly, so I have to suppress the desire to gossip in my heart for the time being. At the end of last month, when Chang Haonan was busy establishing the Torch-C.B. Ferrari joint venture, Liming Company also successfully built a complete multi-arc ion plating production line with the help of Russian technical personnel and technical data. In fact, he was also very curious about the circumstances under which we could obtain an unmanned submarine produced in the United States through the Maritime Self-Defense Force. ??If it is regarded as a covert act and a secret expression of dissatisfaction with major policies, it will be completely over. Used to conduct actual production testing of the performance of titanium nitride coatings. After all, group reform is a task pushed down from the top. If the business situation in the first year is improved, it will be a big deal... Behind him stood representatives from the Russian Import and Export Company and technical personnel sent by several other key domestic military industrial enterprises for inspection. The reason why I didnt use Turbofan 9 is because this coating is a bit expensive, and the mass-produced models of Turbofan 14 and Turbofan 9 are a bit unaffordable, so I just took a recently produced workpiece from the same workshop and made it. . The multi-arc ion plating technology adopted by Chang Haonan happens to be something that can improve product quality and performance extremely quickly and quickly. Above the turbojet 14. At the moment, things on Shengjing''s side are more important. Mr. Chang, the results have come out. Here are the test reports and samples. Not long after waiting, a young man in work clothes trotted in from outside the workshop. Now, Chang Haonan is standing near an ion plating equipment that is quite familiar to him, waiting for the first workpiece to be officially rolled off the production line in accordance with mass production standards to complete the inspection. This is also China''s first vapor deposition coating production line with the entire process completed domestically. ??The breathless test engineer said and handed the two things into Chang Haonan''s hands. Because it is a formal and complete inspection, the report contains a lot of content. ?Chang Haonan turned directly to the key part as quickly as possible: The film thickness is uniform Coverage rate 100% The film bonding force is 175N "etc" This number directly made Chang Haonans eyes widen: Holy shit, 175N? ??? He instantly remembered the STANKIN-NBC-1 multifunctional coating system that he had used in his previous life. The nominal and measured film bonding strengths are both over 100N. ?At that time, I felt that the effect was already very good. Now it seems So it turns out you guys were hiding a little bit, right? Sergey Vorontsov, the representative of the Russian Import and Export Company standing in the back, has been dealing with China about ten years ago, and therefore after Sukhoi took the lead in establishing this joint company specifically responsible for facing the international market. , and took advantage of the situation to become one of the senior specialists for China business. Of course he can speak Chinese, but it is really difficult for a foreigner to understand the thousands of meanings contained in the word "wo fuck" in a short period of time. Vorontsov thought there was something wrong with the data, so he quickly took a look: "Mr. Chang, these data are normal. The bonding force of 175N is already very strong for coating. The current common coating method can only achieve a maximum of 50-60N. Our technology is more than three times higher. Chang Haonan suppressed the racing alpaca in his heart and nodded to indicate that he knew. After all, it happened in a previous life, and he couldn''t really talk about it. ? Whats more, the technical manual also says 100N, which is correct. It can only be said that after passing through the most difficult stage, no one will easily take out the special technology and sell it for money. So we still have to get some valuable things back now. ?Chang Haonan handed the samples and reports to several others behind him to take turns to watch, and at the same time gathered back his thoughts that had just been a little loose. ?There is no doubt that the coating performance meets the requirements of hot-end components. ?General titanium nitride coating can only withstand an operating temperature of about 500-700, but with this terrifying bonding force, it is not a big problem to stabilize it at 1600-1700. ? In this case, the pre-turbine temperature calibration of the turbofan 10 can be further improved to reach the level of 1500-1600C for these third-generation and a half engines. You must know that the overall structural design of the turbofan 10 is very close to the fourth-generation engine. The reason why the performance calibration is still based on the third-generation engine is because other technologies cannot keep up. Now that we have such an unexpected surprise, we can naturally further exploit the potential of the core machine. "Mr. Vorontsov, we are very satisfied with the performance and production progress of this equipment. If there are no problems on your side, I think the memorandum of understanding for the first phase of cooperation can be signed, right?" ?Chang Haonan turned around and looked at Vorontsov not far behind. "no problem." The latter nodded: We can sign it right away. The process of obtaining multi-arc ion plating is, after all, a process of changing technology. In exchange, four integrated jamming pods named "Konggan 100", as well as corresponding Chinese technical personnel and data, were also sent to the Moscow Radio Electronic Technology Company last month for copying and testing. According to Russias plan, a pre-production aircraft T10V-5 that is in the process of test flight, which will be the prototype of the Su-34 in the future, will be transformed into an electronic warfare platform similar to the J-Handian-7, and will replace the aging and powerful aircraft in the future. The insufficient number of Su-24MPs assumes the task of accompanying electronic cover and air defense suppression. ?Originally, because the other partys microelectronics technology was indeed not up to par, the frequency range of the built pod was narrower than that of the air-dry 100 prototype, and it could basically only cover a single band. ??However, Sukhoi engineers said this was not a big deal. The T10V-5 prototype has a large enough wingspan, enough mounting points and strong enough power supply capabilities. ?They simply split the original pod into two, targeting C-band and S-band respectively Since its not possible to hang two pods at a time, then hang four pods... ?So, the problem that I had tried so hard but could not come up with a proper solution for the JH-7 was solved simply and crudely. It can only be said that when seeing this plan, Chang Haonan could not wait to put the completely domestically produced J-11 into service immediately. Big means good, many means beautiful. A platform with good enough performance can indeed save a lot of unnecessary trouble. (End of this chapter) Chapter 564 Have any thoughts on Figure 160? Chapter 564 Any thoughts on Figure 160? Mr. Chang. After the brief signing ceremony was completed, Vorontsov suddenly stopped Chang Haonan: As for the content of the second phase of subsequent cooperation, we have some updated proposals. Are you interested? ?Chang Haonan just wanted to grab some more valuable things now, but now that he heard these words, he felt dozed off and gave him a pillow. Tell me more specifically? Already ready to stand up and leave, he sat back down again. A few days ago, I saw in your newspaper that your Torch Group and an Italian machine tool company established a joint venture. The main products are new machine tools using linear motors and asynchronous motors? As the director responsible for import and export trade with China, Vorontsov is very sensitive to information about these industries. He has been dealing with Chinese people for more than ten years and is very aware that many industry news here are published in the public media in the form of so-called "official stereotypes". ??He just wants to quickly test how strong the heat-resistant buff of the titanium nitride coating is, and then optimize the corresponding combustion chamber and turbine design. If you want to buy a machine tool, you can go directly to our official website and place an order online. After submitting the information, a dedicated person will be responsible for contacting you. ?Chang Haonan was a little surprised by this. ?However, Chang Haonan himself has many things to do, so it is naturally impossible for him to personally handle such small matters as orders from his subsidiary, even if the other party is a representative of the Russian Import and Export Company: Kolomna is a small city located on the outskirts of Moscow. It has a small population and a small area, but the factory located here is a well-known company in heavy industrial equipment. In this case, it is really a surprise to be able to directly obtain a customer from a third country. But the rest are relatively scattered. ? To a large extent, it was for Chang Haonans sake that I bought it and tried it out first. ??If it can keep up with the pace of the CNC era, the competitiveness of this company will still be considerable. ?Customers who have placed orders so far, except Agusta in Italy, are all units under the Committee of Science and Industry. ?At this time, Chang Haonan finally sat back down firmly. For example, around the same time as the Toshiba incident, the Kolomna factory also exported a KU299 heavy-duty vertical lathe to Hitachi of Japan. On the contrary, those industry media often make up the numbers and have no valuable news. We have specifically learned that this part happens to be developed by your Torch Company... Its just that there may be some obscure content that requires guessing. After all, the establishment of Torch-C.B. Ferrari has only had a relatively large impact even in the country on related industries, especially those related to the Commission of Science, Technology and Industry for National Defense. ?The most ambitious one is Hufei Group, which is intensively preparing for the localization of the C808, the Tu334 passenger aircraft. It has placed an order for nearly 50 units at one time. Vorontsov quickly waved his hand: Our Kolomna factory plans to improve a batch of old heavy-duty machine tools, which involves replacing motors and processing simulation technology. It is still in use today. No, no, no, buying equipment is only one aspect. ?But for a "Chinese expert" like Vorontsov, it is not too difficult. ?Of course, this is not something Chang Haonan needs to pay attention to. ?He quickly started brainstorming, thinking about what new tricks he could use this as an excuse to get out of the other party''s hands. ?But now in this one-on-one scene, he couldn''t leave the other person alone, so he could only have some prolonging conversations while thinking. Hand by the way, lets learn about the situation of some northern neighbors. Who are the current main users of the equipment at the Kolomna factory? The cost of updating the product line, especially the heavy-duty machine tool product line, is still considerable. Against the background of the 1998 financial crisis, the situation at Damao is not very optimistic. It is unlikely that a large sum of money will be invested casually and nothing will come of it. direction. ?This question was actually just a casual question from Chang Haonan. Because the question was very short, it took quite a while to answer it, so it was very suitable for the current occasion. But Vorontsov was stunned by the question. Logically speaking, this should be regarded as internal information of the company, but he mistakenly thought that Chang Haonan wanted to establish a joint venture based on the cooperation method with C.B. Ferrari, so after thinking about it for a while, he still replied: The source of users is quite rich. In addition to our country, there are also several CIS countries, some third world countries, and even South Korea and Japan. "But when it comes to the heavy machine tools to be improved this time, the current main users are only a few aviation factories in Kazan, Ulyanovsk and Komsomolsk. They have recently received some new orders and have the motivation to update some equipment. As soon as the names of these users came out, Chang Haonan immediately said "good guys". ?? Tracing back to the origin, it seems to have something to do with him. Gongqingcheng, needless to say, is still producing Su-27 for many users around the world, including China, and is even working with Factory 112 to improve the production process. ? Ulyanovsk should be preparing to build the Il-76MF. Although the An-70 has suppressed prices, after all, there are a lot of orders. Ilyushin may soon gradually transfer the production capacity of the Tashkent factory to the country. ?Thinking of this, Chang Haonan reminded himself. ?After the aircraft production lines of the Ilyushin Group are transferred to Ulyanovsk, the Haofei Group can be asked to make a bargain and move the equipment and technical data over. ? Huaxias large transport aircraft will definitely be able to use it in the future. As for Kazan The main business of the Kazan Aviation Factory at present should be the production of parts for Figure 334 and Figure 214. Not only are they produced in accordance with Chinese standards and are ready to be supplied to Hufei Group for final assembly, they are also produced in accordance with Russian standards and supplied to users in the CIS and the Middle East. ?This has to be mentioned, Chang Haonan''s operation last year had a huge impact on the world aviation industry pattern - Among the series of "unequal treaties" signed by Boeing in order to successfully acquire McDonnell Douglas and protect its own stock price, including one that "allows all competitors to use the research and development work they have so far and have been conducted with government financial support." The patent results and technical secrets obtained in the process". This permission has no scope limit. ?As a result, this piece of content almost directly promoted the development of the aviation industry around the world. Let alone Airbus, Bombardier Aerospace, Dassault Aviation, Embraer, Tupolev, Yakovlev, and of course China Aviation Industry, which are numerous manufacturers. Even the Dutch Fokker Aircraft Company, which had already half-footed its foot on the coffin board, sat up from a dying illness and expressed its intention to cooperate with Dassault and prepare to enter the business jet market. ? Many new models and technologies that only appeared in the 21st century are already showing signs of emerging... "etc" ?Speaking of Kazan, Chang Haonan, who was still a little worried about not knowing what conditions to offer, suddenly remembered something. The production of the Tu-160 bomber should be carried out at the Kazan Aviation Factory. ?Of course, after the disintegration of DaMao, there is definitely no way or money to produce new aircraft. But according to the historical process of the previous life, around the year 2000, Ermao will hand over a batch of 160 pictures that he has sealed up in the form of debt payment... If done correctly, you may not be able to get a few from it. At this period, Er Mao had as many as 18-20 Tu-160s in his hands, and in the end, Da Mao only picked up about half of them. Even if the remaining aircraft are not in good condition, they are still 10 years old and have not even been flown much. ?Different from the Tu-22M3, which has limited range and bomb load, and doesnt have many highlights except speed, this is a serious strategic bomber. If there is a chance to get it, Chang Haonan will never hesitate. ?However, it is only 1998 now, so it is still a bit too early to say this directly. But preparations can already be done in advance. Mr. Vorontsov. ?Chang Haonan sat up straight, with a serious expression on his face: I suggest that our transaction should be based on the first phase of cooperation and be conducted in the form of technology-for-technology. (End of this chapter) Chapter 565 Vacuum electron beam welding technology Chapter 565 Vacuum electron beam welding technology For Vorontsov, it would be better if he could establish a joint venture with Torch Group like C.B. Ferrari did, but he could also accept continuing to exchange technology for technology. ?So he nodded, recognizing the cooperation method proposed by Chang Haonan: So, what exchange conditions is Mr. Chang going to offer this time? ?Chang Haonan didnt waste much time and directly stated the requirements: I heard that at the Kazan Aviation Factory, there is a vacuum electron beam welding production line, which is the key technology and equipment provided by the Kolomna Factory? ?? Vorontsov was taken aback, probably because he didn''t expect that the other party would know these details so clearly. Yes, but that production line has not been put into use since 1991, so its current condition is average. More importantly, many relevant technical personnel have transferred jobs or even left completely. Colomna''s vacuum electron beam welding production line is used to weld large-size titanium alloys or lithium aluminum alloys. Specifically in the Soviet era, only the central main spar of Figure 160 and An 124/225 could be used. After the disintegration of the alliance, no new aircraft were built for these three models, and the few aircraft that rolled off the production line were all assembled using existing parts. First, he changed his career directly and used it to produce some pressure vessels, such as rocket fuel tanks. Later, I managed to survive until Tu 160M resumed production, and then returned to my old business. The manufacturing and installation of vacuum electron beam welding equipment are extremely complex, and it is difficult to dismantle them, transport them thousands of miles to China, and then reassemble them. ?Chang Haonan waved his hands and said it didnt matter: We have cooperated so many times and are considered old friends. It doesnt hurt if I suffer a little loss this time. But what Chang Haonan wanted was not that production line. Through Project No. 11 and the multi-arc ion plating production line, Shengjing has cultivated a group of talents who are familiar with Soviet technology and understand Russian. In the original timeline, the equipment of the Kazan factory was reactivated after not being idle for too many years. So, it is better to consider building a new one directly. Vorontsov said to you that you are very kind. If you really want to talk about these two technologies, they cannot be considered to be of the same order of magnitude. Chang Haonan certainly knows this. The other person nodded. So, we are also prepared to show some new sincerity. As a result, the production line naturally fell into disuse. Furthermore, Torch Group is developing rapidly now. Even if some technical obstacles need to be tackled again, it should not waste too long. It doesnt matter, as long as the technical information is there. Vorontsov was a little uncomfortable when he choked on his words, but it was hard to show it at this time, so he had to signal Chang Haonan to continue. ? Even if Figure 160 is not available, this thing will be useful in the future. After contacting 601 during Project 11, Sukhoi quickly introduced this numerical calculation software, and was pleasantly surprised to find that it had a very high degree of matching with the modeling software KOMPAS-3D they developed. ?But since he would make this request, he had already planned it. Mr. Vorontsov should have heard of our groups TORCH Multiphysics software? ?So he saw exactly when Vorontsov was about to speak, and pushed back his words first: Of course, just such an exchange is still a little unfair. Actually, we are developing a version with more functions and stronger capabilities, and the current plan is to only provide it to a small number of users who have a deep relationship with our group. The only regret is that because this new version of the algorithm is special, it runs very inefficiently on general supercomputers Fortunately, we and Sugon Group have developed new equipment specifically for these special algorithms, namely the Sugon-T series computers, which can solve this problem to a certain extent and achieve high-precision, high-efficiency, and multi-degree-of-freedom calculations ??The so-called new version mentioned by Chang Haonan is naturally the software and hardware bundling sales strategy that he discussed with Academician Li Jie at the National Science and Technology Awards dinner. ??It''s just that he said it in a different way, and it became a bargaining chip. What is making cards in the void.jpg Although Vorontsov on the opposite side has had a lot of dealings with Chinese people, he still clearly lacks resistance to this kind of rhetoric. After some thought, he tentatively agreed to this exchange condition. ?Of course, he can only be regarded as a middleman, and ultimately requires formal signature authorization from the Kolomna factory. ?However, judging from past experience, projects approved by import and export companies are rarely rejected. So, basically they are inseparable. After finishing the PY transaction with Vorontsov, Chang Haonan returned to the workshop. ?Those technicians from brother units are still surrounding the multi-arc ion plating production line, discussing each other word by word. ?Seeing Chang Haonan reappear, everyone stepped forward and surrounded him. Mr. Chang, we just discussed it and now we have a proposal. I would like to hear your opinion. ?One of the older ones became the speaker and said to Chang Haonan: I heard from Mr. Zhong Shihong before that this production line will not be able to arrange formal mass production tasks in Liming Factory for a while. At present, it will only carry out some technical adaptation work. It just so happens that several of our companies have projects that urgently need this kind of high-stability coating technology, and we really cant wait until the subsequent production lines are completed and put into production. So, during this period, can we pay for it and let Liming Factory help us produce some samples in the form of an order, which can at least be used for testing? ?Those who can stand here are all veteran comrades with certain experience in the military industry system. From the acceptance process just now, it is not difficult to see that although Chang Haonan is not technically from Liming Factory, he has absolute say. ?As long as he nodded, it wouldn''t be a big problem. After all, this production line is completely prepared for the turbofan 10 project. It will still take some time before the turbofan 10 is finalized and transferred to mass production, or even small batch trial production. Its okay. ?Chang Haonan agreed to the other party''s request after some thought. In any case, workers at Liming Factory also need to familiarize themselves with the production line. Rather than letting them practice directly with unused parts, they might as well help their brother units solve some practical problems. But then, he added: However, multi-arc ion plating is not a universal process. Please report the types of workpieces and coating materials that need to be coated and let the engineers here review them. If they pass, you can just place the order directly after you go back. Its easy to say, we are just preparing to chromium plate the inner bore of the gun barrel, which is the most common coating requirement..." ??The old engineer who just spoke said immediately. Looks like he should be from the Ordnance Industry Group. We are making gears for a gearbox. The coating is the same as the demonstration just now, which is titanium nitride, but it does not require such a high binding energy..." Plexiglas for aviation needs to be plated with indium tin oxide on the surface Engine piston, molybdenum disulfide plated Chang Haonan was a little dizzy at the sound of voices everywhere, and it took him a while to finally send these overly enthusiastic and excited technicians to the section chief responsible for this ion plating production line. ?However, he did not leave the workshop immediately. Instead, he quietly watched the number of projects listed on the paper increase little by little. Then put on the other side. Put on a new piece of paper Perhaps, this is the scene that I expected to see when I was just reborn. (End of this chapter) Chapter 566 Sonar has no copper, so it’s useless to fish it out? Chapter 566 The sonar has no copper, so its useless to fish for it? ? ?Titanium nitride coating with high bonding strength definitely has a very obvious addition to the resistance of the hot-end parts of aeroengines. This allows Chang Haonan to further improve the performance of the combustion chamber and turbine. For sea level thrust, the final gain is only a thrust-to-weight ratio of about 0.5, but there is a solid improvement in the available thrust of the aircraft at medium and high speeds. According to the current calibration, under "typical" supersonic operating conditions at Mach 1.6 speed and 15,000 meters altitude, the effective available thrust of the turbofan 10 can even be about 40% higher than that of a subsonic optimized model such as the F110. In fact, by the time before his rebirth, heat-resistant coatings had even evolved to use higher-level materials such as titanium aluminum nitride. ??It''s just that at this moment, the carbonitriding process and the titanium nitride coating process are already quite difficult for China to master. The yield rate after trial production using the old turbine design is not very high. In addition, the special-shaped air film cooling holes developed by Chang Haonan are also very labor-intensive. For not very "smart" EDM drilling equipment, it is difficult to achieve it in one processing. Hence, according to current estimates, the production speed of hot-end parts of the turbofan 10 is only about one-fifth that of the turbojet 14. ?Although aircraft engines are valuable, they are still industrial products that must be mass-produced. Blind pursuit of technological advancement affects production, which is to sacrifice the basics and pursue the last. At this point, several core subsystems of the turbofan 10 have completely completed the preliminary design. The next task is to combine the various parts and then make some detailed adjustments and optimizations based on the cooperation between them. This part of the work is not very difficult. The main thing is to reunite the various design teams that worked separately in the early stage. Secondly...it also satisfies my curiosity. When she was assigned to work as a guard for Chang Haonan, she was worried about whether this was a disguised assignment. With the support of Chang Haonan and the magical system, most pitfalls in the design process can be avoided in advance. Its just that the pilots national flag livery was replaced by United Airlines civil aviation livery. At Shengjing, the work in the next few weeks can be handed over to chief engineer Hai Yide, who has to pay attention to the production progress of the die forging press. ?After Chang Haonan won three awards at the beginning of the year and took advantage of the momentum of the establishment of the Equipment Industry Department to turn the die forging press project into a regular one, his travel equipment also improved a lot. ?Just like programming, it is not difficult to write code in one go, but debugging is when the programmers patience and physical fitness are truly tested. For him, the testing process is more like checking for deficiencies and filling them in. There will rarely be anything that can affect the overall situation or even lead to rework. Chief, you may be the youngest person on the list of people nationwide who can enjoy special plane treatment... Zhu Yadan sat on the sofa opposite and pressed the soft armrest of the seat, his tone full of admiration. ?However, before that, Chang Haonan still had to return to the capital. ?Chang Haonan adjusted his posture slightly and prepared to take a rest on the road later: But this Challenger 601 is loved by my grandma and uncle in the 34th Division. It rarely flies missions, so I simply changed the paint and brought it to me for use..." The cabin environment of business jets is indeed better, but it is just too small. I heard from Director Ding that it was impossible for me to get the special plane configuration. Then comes component-level performance testing, and prototype production and testing that really determines the fate of a model engine. ??He does want to know the origin of those two complete sets of military GPS navigation equipment... But the Turbofan 10 cannot be regarded as a general model. Now it seems that I have thought too much. For ordinary engines, reaching this point is the most complicated and torturous part. From free business class on United Airlines to the Challenger 601 he flew on last year. ?Like this Challenger 601, it can only have a maximum of 19 seats. ?Those who can arrange a special plane here in China generally have a small entourage. Everyone is squeezed into such a small plane, but it is not as comfortable as a modified mainline passenger aircraft such as a Boeing 737. In the end, Chang Haonan got the advantage. ?Although this aircraft was painted in civil aviation colors, it did not fly civil aviation routes, so it landed not at Nanyuan Airport, which is commonly used by United Airlines, but at the western suburbs of the 34th Division. ?The distance from here to the city center is actually about the same as Nanyuan, but the flow of people is obviously less, and there is no need to wait for luggage after getting off the plane. Even the car can be left in the parking lot. Compared to Nanyuan, which is used both for military and civilian purposes, it is indeed much more convenient.??? ??When Chang Haonan walked into Ding Gaoheng''s office, the latter pulled out two bulging file boxes from the filing cabinet next to him before he could speak. Judging from the lower position, it has been some time since it was placed there. I know what you want to ask, come and see for yourself. Ding Gaoheng put the two piles of files on the table with a smile, indicating that Chang Haonan could read them by himself. The latter took a deep breath and widened his eyes slightly: Is this something I can see? ?Having said that, while asking the question, he had actually started to unpack the two file boxes. Its just that my hands are shaking a little. Ding Gaoheng told him before that he obtained an unmanned submarine from the United States through the Maritime Self-Defense Force. Generally speaking, no matter how small an unmanned underwater vehicle is, it must weigh about 100 kilograms and be one or two meters long. ? Being able to get this kind of thing silently is no less difficult than stealing missiles from a military base in West Germany. Hence, the moment he opened the file box, the names of countless legendary spies had already flashed through Chang Haonan''s mind. Then, he saw the title of the report at the top: Report of the Naval Aviation Force on the Discovery and Expulsion of Submarines of Unfriendly Countries in the East China Sea Exercise Waters ifier Because the plot difference was so big, Chang Haonan was stunned for two seconds. ? Then he realized that there might be so many differences in methods between what Ding Gaoheng said about "getting it" and what he imagined as "getting it" - I thought I was watching "Mission: Impossible", but it turned out to be "Greyhound"... "so" Chang Haonan spent about half an hour browsing through the relatively important contents: Did our navy regard a Self-Defense Force submarine as our own Blue Army imaginary enemy during the anti-submarine exercise? Ding Gaoheng nodded. And then, by accident, the submarine was blown up? Thats not true. Ding Gaoheng shook his head: "The actual situation is that when the comrades of the Navy were bombing the fish, they had already determined that it was an unfriendly target of a third country. Otherwise, it would not have been possible to directly throw a mine." Its just that this matter still involves the French army after all. Considering international relations, in the end, the statement everything is a coincidence was adopted in the internal commendation content. Tsk tsk tsk Chang Haonan sighed as he organized the reports in his hands and put them back in the file box: We still have to thank our comrades in the Navy, otherwise we dont know when our GPS jamming equipment will be able to start prototype production, let alone be officially put into use. Thats what I said, but there is actually another reason for Chang Haonans emotion. ?In his last life, he had seen many jokes on the Internet about coastal fishermen salvaging sonar released by the US and Japanese navies and then selling them as scrap. ?As for the jokes, the content is basically made up. Our fishermen have indeed caught something of value. A MK46 lightweight torpedo, which is the prototype of the Yu-7. ?However, when designing the Yu 7, our country actually introduced the technical data of the MK46 through formal channels, so there is no direct relationship with the torpedo that was picked up. ?However, who would have thought. After rebirth, the jokes that were just for fun in the past turned out to be true... (End of this chapter) Chapter 567 A new generation of aerial platform to replace Yun-8 Chapter 567 A new generation of air platform to replace Yun 8 Ding Gaoheng naturally had no way of knowing the content of Chang Haonan''s slander, and just regarded it as a normal emotion. Luck is only one aspect. Ding Gaoheng leaned on the office chair in a very relaxed posture, habitually putting a cigarette under his nose and smelling it: If we dont have the corresponding equipment, its impossible for us to capture that submarine. Even if we happen to encounter it, there is a high probability that the target will be let go. The report submitted by the North Sea Fleet Carrier Aviation Corps also specifically mentioned the new equipment provided by the Ice Flying Group, saying that it played a very key role in handling the emergency. After finishing speaking, he took out a more neatly bound report (of course a copy) from the file box that had just been placed below and handed it to Chang Haonan: "Let''s see." Although you have probably seen a lot of this kind of thing, I havent seen enough of it anyway Ding Gaoheng''s thin face almost burst out with joy. For the army to be able to write such a report, and even specifically thank the military-industrial system for its outstanding work, it definitely made him look bad. When a person reaches his age and status, there is not much room for him to climb up. It is inevitable to be drawn out for comparison. ?The conclusion alone takes up almost three pages. Its okay to pick and choose the key points. Dont be arrogant when you win, and dont be discouraged when you lose. "The French destroyer Jean Bart performed poorly in this operation. Diesel-powered ships are not suitable for anti-submarine warfare. The medium and low-frequency noise caused by the reciprocating piston propagates extremely far in the water, and the frequency is the same as when the submarine is sailing. The noise generated by the friction between the hull and seawater is highly overlapping, which has a great negative impact on submarine search operations..." After reading it, Chang Haonans first feeling was admiration. ?Although limited by the times, there should be no chance to achieve such great achievements as two bombs and one satellite, but we still have to leave a few strokes with great emphasis. In addition, the Navys submarine force also needs new equipment. Long-term training using old submarines such as the Type 033 as imaginary enemies has seriously affected the combat readiness level of the Peoples Navy The people''s army has never been perfect, and has also experienced low periods due to various reasons that affected its combat effectiveness. ?Of course, Chang Haonans imprint is definitely indispensable in this. The landmark achievements made by the military industry system in the past two years are no less than those in the previous ten years combined. The performance of the Z-9C aircraft has significantly exceeded that of the original French AS565 helicopter, especially in terms of range and mission load, but the ship-based helicopter force still hopes to further expand the mission scope and extend the mission time, which is very important for anti-submarine warfare. ?In particular, Ding Gaoheng''s father-in-law was the first head of the Republic''s military industry system, which is similar in nature to his current position. Even in the face of an operation that seemed to be a complete victory, the participating units still learned many lessons from it. "The anti-submarine warfare method of relying only on a small number of surface ships and ship-based helicopters cannot deal with the increasingly severe underwater threats around our country. Although this raid was successful, the initial discovery of the enemy submarine relied on coincidence, and the target submarine had already been It has entered the anti-ship torpedo range, so it is still necessary to strengthen the construction of our countrys anti-submarine capabilities..." ??However, they can always regain their strong combat effectiveness in a relatively short period of time, which largely relies on the spirit of being good at learning. It is inevitable to start thinking about your posthumous name. ?This kind of serious report to be submitted to the top is not the kind of conclusion that is completely unclear. The whole article only has a valuable background introduction in the opening chapter. This does not include the impact in parts other than the military industry. Opposite the desk, Chang Haonan quickly turned over the front part and went straight to the summary at the back. Not only good at learning from failures, but also good at learning from victories. The summary is very good, and it can be regarded as pointing out a direction for our comrades in the military industry system, especially those involved in naval equipment. ?Chang Haonan folded the report and placed it on the armrest of the sofa next to him. Speaking of this, Ding Gaoheng put the cigarette under his nose back into the cigarette case and put away his relaxed expression: You probably dont know yet. The senior military officials took this matter very seriously and even directly brought some of the grassroots commanders and fighters who participated in the operation to the capital and held several rounds of high-level equipment development strategy seminars. Such a big formation? Chang Haonan was stunned when he heard this. ?This posture sounds a bit close to the bat-hunting operation that went abroad to fight before and finally shot down the MiG-25 You must know that it actually achieved results, and it also involved a series of complex strategic considerations in the southwest. It also captured the physical jamming pod, which is very important for electronic technology. ??As for the dike-building operation in response to the provocation of the Royal Navy at the end of June last year, although the task itself was much more complex and grand in scale, the battles in this area were much smaller in the aftermath. ??If I have to say, through the unreliable performance of the 8J, I realized that the air command platform still cannot completely rely on foreign countries, so the Air Police 200 was launched as a backup project. "Of course." Ding Gaoheng nodded: Although no actual results were achieved this time, the military significance of using a mine without a warhead to directly hit an enemy submarine is not much different in terms of military significance. "What''s more, we are facing the Japanese..." Hearing this, Chang Haonan finally felt at ease. From a perceptual point of view, the vast majority of Chinese people still have different feelings towards Japan and Britain. From a rational perspective, everyone knows that although the Royal Navy may sound famous, it is actually already a thing of the past. Even if they can piece together a fleet, it seems to be a bluff. Now it is impossible to pose a real threat to China far away on the west coast of the Pacific. ?However, as an important part of the so-called "first island chain", Japan''s Maritime Self-Defense Force has put a lot of pressure on it in this era. After a brief pause, Ding Gaoheng continued: In general, this incident made us realize that the anti-submarine pressure faced by the navy is at least not weaker than air defense, so we are considering putting the construction of an anti-submarine warfare system on the agenda..." When he said this, he did not expect Chang Haonan to do anything. ?Just think of it as finding someone to talk to about happy things. ?However, although Chang Haonan''s specialty is not in naval equipment, his influence is reflected everywhere in the field of naval equipment... Speaking of anti-submarine warfare, I remember that the turbojet 14 aeroderivative engine previously developed by the 606 Research Institute should have been delivered to the 701 Research Institute of the Shipbuilding Industry for actual testing. It should be able to alleviate some of the navys urgent needs in this regard. ??If the 054 can be designed and finalized according to the plan of Deputy Chief Engineer Lin Qing, it will become a general-purpose frigate with anti-submarine specialties. Ding Gaoheng slapped his forehead and shook his head with a wry smile: "Look, I forgot that the power of the ship has something to do with you..." Its really hard to imagine... In about two years, you have created so many projects that transcend the times..." The sudden appreciation even made Chang Haonan unable to react for a while. After a while, he waved his hand: This cannot be attributed to me alone. Comrades from the entire military industry system also contributed a lot..." After giving a decent but not too modest response, he brought the topic back to the part he had just left unfinished: "In addition, what is said in this report is reasonable. Helicopters and surface ships alone are indeed of little help in the complex sea areas around our country. We still have to consider equipping fixed-wing anti-submarine patrols like P3C or Il-38. The opportunity will do..." "The only model we are waiting for right now is the Y-8. Although it is not unusable, judging from the progress of Shanghai Airline, the C808 passenger aircraft assembled from large parts should not take long to roll off the production line for its first flight, so it is better to slightly Wait, get on the jet platform in one step..." C808 is a Tu334 passenger aircraft produced in accordance with Chinese standards and improved using some of Boeing''s public patents. For most special aircraft, it is a much better flying platform than the Y-8 Category III aircraft. Even better than the P8A that will use the Boeing 737-700 platform in the future. Most importantly, since no components from Western countries are used, there is no obstacle to converting it for military use. C808 When mentioning this model, Ding Gaohengs eyes clearly showed some importance: I remember that the maximum takeoff weight of this model is about 50 tons. It should be slightly smaller than the Y8? ?Although he is not a leader from the aviation industry, he still has a thorough understanding of the basic performance of this key model. It is smaller, but the cross-sectional area of ??the C808s body is designed in accordance with the standards of mainline passenger aircraft. It is much better than the Yun-8 in terms of cabin volume, flight quality, effective range, reliability and lifespan. Chang Haonan explained: "Among other things, the range under full load is about 3,500 kilometers, which is more than twice the full load range of the Y-8 airtight model. Moreover, when the military platform is modified, the luggage compartment under the floor of the passenger aircraft can also be converted into a fuel tank. Further Extend the combat radius. Furthermore, in the foreseeable future, our militarys equipment construction will focus on territorial recovery operations in the southeast and southwest. Even if the endurance is slightly worse than that of the P3C, it will not suffer a loss due to its home field advantage. So, except for some models that really require take-off weight and ultra-large range, such as strategic reconnaissance aircraft or early warning aircraft, which need to wait for the larger C909 platform later, in fact, most special aircraft can be directly modified on the basis of this model. " And, theres one more thing. Speaking of this, Chang Haonan paused for a moment, as if he was organizing his words: I am worried that the C808 model, at least at the beginning, may not be so easy to open up the civil aviation market. Being able to play a role in the military special aircraft platform can also be regarded as a guaranteed order, so that there will be no place to sell the aircraft after it is built. "Moreover, military users are also users. On the one hand, they can give feedback on some problems and suggestions during use, so that Hufei can make targeted adjustments and improvements. On the other hand, it can also be regarded as a demonstration to foreign users, showing that we believe in the products we have made." There is no problem with the aircraft and it will help expand foreign markets. ?This remark is put more euphemistically. In fact, Chang Haonan is worried that internal enemies will cause trouble and cause some troubles in the aviation industry that he has finally pulled together. The profits of the aircraft manufacturing industry are extremely considerable, and the operating space behind it is also quite amazing. ??Under the leadership of the Committee of Science and Industry, the development of domestically produced large aircraft has offended Boeing quite a lot. No one knows exactly how many peoples money trees have been ruined behind their backs. As the C808 is the first model after the Commission of Science, Technology and Industry for National Defense took over the civil aviation industry, countless pairs of eyes are staring at it. Chang Haonan doesn''t believe it if these people don''t do anything small. It can even be said that the fiercest battle in the civil aviation industry will not officially begin until the day of the C808''s first flight. It will be more reassuring to have more insurance. (End of this chapter) Chapter 568 Before you find the Chinese people, we have already Chapter 568 Before you found the Chinese, we had already started cooperating At the same time, Chang Haonan and Ding Gaoheng were planning how to provide support for the domestic jet airliner platform. Paris France. Compared to the Chinese Navy, which summed up its experience and lessons in the joy of victory, the French''s reaction was another story. Although the French army does not regard the Japanese as allies (in fact, the French army from the 1990s to the early 21st century may not really regard the US military as an ally), therefore this matter does not involve the siege of friendly forces and can be regarded as a simple matter. to expel unfriendly third-country vessels. But blowing up someone else''s submarine is a big deal after all. Therefore, after leaving China, fleet commander Laurie Vojul immediately reported the situation to the mainland via radio. They also sent two staff officers to transit via Singapore and fly back to the mainland in advance with a detailed incident report and some video and image evidence. Firstly, it is to prevent the Japanese who are living a good life from taking a bite in advance, and secondly, it is to shirk the blame for themselves. After all, all the data can prove that until the Harushio-class submarine surfaced, the joint military exercise fleet "mistakenly believed" that it was an imaginary enemy target preset for the exercise. Of course, some of the Lieutenant Generals own emotions were also added to it. Minister of Military Affairs Alain Richard was flipping through a naval report in front of him with complicated emotions. But now, Richard''s mind was in a mess. ?Even the ministers secretary, Alv Busson, knocked on the door and came in without noticing. The latter belongs to the "Secretary of State" in the French administrative system, not Richard''s personal secretary. Although there is a relationship between the two, they do not belong to the same system. In many cases, they are more Similar to cooperation. But the problem is that it is indeed a bit too dry. As he spoke, he poured two more glasses of sparkling water, and handed one of them to Busin. As a new minister who took office in January this year with only three months of experience, his business proficiency is not high enough. Oh, Elvy, Im fine. Of course, it omitted his own psychological activities of setting up a trap to make the Chinese people look bad before the exercise, and did not mention that a fellow countryman had conducted a PY transaction with him before the fleet set off... Because it was written temporarily on the ship, the binding is relatively crude, and there are even many parts with blurred writing. Compared with the reports that I have seen too many times, presented by civil servants, with gorgeous words but incomprehensible meaning, and needing to find the key points between the lines to avoid being fooled, the thin pages in front of me are clear in ideas, concise and concise, and are all useful. dry stuff. Yes, much more important than the defense report. so. There was so much information that he didn''t know where to start. For example, Eurocopter is shameless and engages in false propaganda regarding the performance of its helicopters. The products they make are not as good as other people''s imitations. We were slapped in the face during the exercise and could not hold our heads up at all. This goes on. If there is no country, how can we talk about restoring the glory of France... Mr. Minister, are you okay? In short, although Busson believes that he has done nothing wrong, if the person in front of him makes another mistake, it will definitely cause a new blow to his professional reputation. ??Bussen looked at his minister who had been motionless for several minutes and whose facial muscles were constantly twitching, as if he was going to have a stroke or shock at any time. He shouted with some concern. Fortunately, Richard was in good health and kept himself clean. He was just meditating just now, and he immediately reacted after being called. He put the report back on the table, stood up and stretched his somewhat stiff body and facial muscles: Im just reading a very...rich national defense report. Do you have anything to ask me about? If someone dared to hand over something like this in ordinary times, he would definitely make a note of it in his heart. ??The last minister he served before was exposed for tax evasion, the last deputy minister was forced to resign due to a **** scandal, and the last MP was unable to perform his duties due to illness... Buson put the thick stack of documents he was holding on the table, and then took the goblet: May is coming soon, Labor Day and Victory Day in World War II. The Ministry of National Defense regularly organizes a celebration dinner every year, and I need you to sign some invitations. After speaking, he pointed to the file box on the desktop: "I have already divided it into categories for you. You can just sign your name as required, or you and your wife''s name." As a member of the old European old money countries, France still needs to have a certain tone. Of course ordinary people can use printed signatures, but at the upper levels, they still have to sign by hand to show etiquette and attention. ?Just like the New Year greetings messages from China, there are also group and single messages. Richard looked at the document, which was half a meter high, and almost threw the cup away with a trembling hand: Is this more important than the defense report? Buson drank all the sparkling water in the glass and nodded: "No one will know about the national defense report even if you don''t read it, but if the invitation is not issued or is sent late, it may offend many important people. If they agree in advance to participate in activities organized by other departments, it will not be easy for us here. Looks good "This is different. It was sent back urgently by the visiting fleet commander General Vojour. It involves foreign relations, equipment development and...in short, many issues." ??Speaking of this report, Richard suddenly felt that the sparkling water in his hand was no longer tasty. He quickly sat back on the chair and pulled out the report that was buried under a pile of invitations. Fortunately, after this incident, his mind was much clearer than before. The Japanese side is unreasonable, so just issue a note to condemn it. Anyway, even if the matter becomes serious, they will be the ones who are embarrassed in the end. What really makes the Ministry of National Defense lose face is the performance of the French army in the exercise. According to Vojul, Jean Bart was completely cheating during the whole process... Oh, how come the army has become like this! ?He organized his thoughts and raised his head again to look at Busin: Alvey, please draft an official letter immediately. I will attach an excerpt of the report and send it to the Aerospace Industry Association to see what they have to say. The other side. In fact, there was no need for Alvey to send the official letter at all. Vojour sent two confidants to fly back to Paris. One went to find the Ministry of Defense, and the other directly found Le Maire, the vice chairman of the Aerospace Industry Association who had had PY transactions with him, and gave the latter a letter. . ?In the letter, the lieutenant general tearfully denounced the fellow villagers'' inhumane behavior, saying that the anti-submarine exercise had made him miserable and almost disrupted the planned exercise plan. He also hinted that although the purpose of "promoting French products to China" was not achieved, and it was even counterproductive to a certain extent, I didn''t even give up face for your words, brother. You can''t go back on the position you agreed on before. . Flamel looked at it and shook his head slightly. He felt that with his shame, he might not be able to enter politics in this life. The Ministry of National Defense is expected to send us an official letter asking about the situation soon. ? Flamel put the copies of the letters and reports back into the drawer, turned around and looked at Kurt Jean Pierre sitting on the sofa next to him: You should also start making preparations. It will probably take some time to deal with those countries. It is estimated that the Netherlands will be easy to persuade, and Germany may be a little more troublesome. What I am most worried about is the Italians. AgustaWestland and Fiat both have core interests in the NH90 project, and I am afraid they will not give in so easily. After saying this, the atmosphere between the two fell into a strange silence. Flamel noticed something strange in Pierres eyes: "is there a problem?" "No" ?Pierre scratched his head, seeming to be thinking about how to make the next words less hurtful: Actually, after I came back from Singapore, I have been communicating with several partners about this matter, but you dont know it Agosta sent me a memo two days ago. I think you need to read it. You may not know the contents... He took out two pages of paper from the briefcase he carried with him and handed them to Flamel opposite. ?The latter took it in his hand, glanced at the contents quickly, and then his face froze: Ah? The contents of the memo are concise and concise It doesnt matter, before you came to the Chinese people, we had actually started to cooperate with them. (End of this chapter) Chapter 569 Jiangcheng Heavy Machine Tool Factory with a new look Chapter 569 The new-look Jiangcheng Heavy Machine Tool Factory Looking at the memo in his hand, Le Maire was sweating all over. There is quite a feeling of secretly holding back the ultimate move after obtaining the martial arts secrets, thinking that as long as you wait for the great achievement, you will be able to beat all the invincible opponents in the world. However, as soon as you come out of the mountain, you find that your martial arts are just generic and your skills are not as good as others. ?But when I think about it, my mentality is a bit complicated. After all, this shows that Erwuzai is not the only one. ??Although the EU has signed an aviation cooperation agreement with China before, at this year''s time, it is still a relatively shocking decision to cooperate with China in building aircraft. Even if Flamel has made a decision, after all, everything has not yet been settled, and a guilty conscience is inevitable. ?In this case, knowing that another founding member of the EU has made the same choice will definitely relax your mind a lot. ?Especially when you think of the great achievements of the Italians in the two world wars (referring to taking sides), this is especially true. ??Just like when you were in college, you skipped class to participate in other activities. After you went there with trepidation, you found that the top student in the class was also... "So, where have they...I mean the Italians come now?" ?Given the efficiency of data transmission in the paper media era, the amount of information a person can access every day is very limited. For example, Le Maire has been coordinating the power of the Rafale fighter jets between the French Navy and Air Force and Dassault recently, that is, the performance calibration and development of the M88-2 engine. His attention is basically focused on the country, and he can''t follow it for a while. It is also normal to get news from overseas colleagues. "This...I don''t know much about it. I only know that Finmeccanica Group sent a high-level delegation there before. What is known so far is that Agusta is planning to develop a 6-7 ton-class, face-to-face missile with the Chinese people. For high-end market helicopters, the specific technical details should be commercial secrets and will not be disclosed too much for the time being. ?Pierre was cutting the steak on the plate while recalling the information he had obtained during this period: There are also several well-known machine tool companies in the industry that have bypassed the Wassenaar Agreement and signed several large orders with China. However, many countries are doing this, such as Spains Boster and Danobate. They also rented planes from our national airline when they exported equipment to China. As for Fiat, I havent heard of any cooperation with China in the aviation business, but they developed the automobile business last year. Speaking of this, Pierre seemed to suddenly remember something and stopped what he was doing: By the way, I heard some rumors that this years F1 Ferrari teams F300 car, which won the championship in the first three races, was designed by the Jinling R&D Center they established just last year. Flamels hand holding the fork also paused in mid-air. Even the act of chewing was forgotten. Is there such a thing? Peoples ideas are actually very difficult to change. Just like now, although Flamel has made the decision to engage in technical cooperation with the Chinese, this is still more of a case-by-case judgment. In other words, when it comes to this specific matter, I recognize your strength, but in terms of daily life, I still lack a specific understanding of China''s technical level, and I subconsciously think that China is still what it used to be. ? Even Le Maire is like this, let alone ordinary people who are not very aware of specific technologies. For most people, only brands that are visible and tangible can be considered real things. This process of conceptual change often takes a long time or a series of landmark events with great influence to complete. There is such a statement, and Ferrari has not denied it, so it is most likely true. After speaking, Pierre picked up the knife and fork again and started cutting the meat. Forget it, dont talk about this. ? Flamel waved his hand and brought the topic back on track: The automobile and machine tool equipment matters have little to do with us. During this period, I will focus on asking about the details of the cooperation between AgustaWestland and China, which can also be used as a reference. Since their model is 6-7 tons, it means that it does not directly compete with the NH90. This should not be difficult. After you go back, remember to make a list in order of importance of the current problems facing the NH90 project, and then see what can be solved during the cooperation process. As for the Germans, if you do a little bit of public relations, if you really dont appreciate it, kick them out, and youll have one less partner to share the money with ?As a result, the overall direction of the NH90 project has quietly changed in this inconspicuous restaurant cubicle. ?This kind of model involves multinational cooperation and is even for military use. If you want to introduce new, non-ally collaborators, even if you have made up your mind, there is still a lot of necessary desk work to be done. Hence, when Chang Haonan received the cooperation intention from distant France from Lan Xinzhi, it was already almost half a month later. He is following the construction progress of heavy-duty die forging presses at Jiangcheng Heavy Machine Tool Factory. It can be regarded as a revisit to the old place. Compared to the last time when I came here, it was a bit sneaky, this time, it was definitely a serious "inspection" attitude. ??Jiang Chongs old leadership team, including a considerable number of senior grassroots employees, were all removed from the organization in a vigorous investigation at the end of last year. In order to achieve a seamless connection at the management level, the Ordnance Industry Corporation directly transferred half of the leaders of its two second-level state-owned enterprises and took over this enterprise that has been listed as a key national defense unit. ?Of course, ordinary workers in the factory will inevitably feel panic after this round of big moves. ?But this is the part that is easier to solve - After the company was transferred to the Ordnance Industry Corporation, the first official document issued by the group was to suspend the employee layoff and seniority buyout process that had already begun, and required all employees to return to work within three days to conduct production assessments, and to reorganize the workforce based on the assessment results. . After a round of combined punches, when Chang Haonan arrived here, the normal production of the entire factory had gradually returned to normal. Mr. Chang, this is the production workshop of our factory after reorganization. Most of the equipment that was previously intentionally damaged and recorded as scrap has resumed production. ?Jiang Zhongs new factory director is called Liao Xinhua. He was born in 1950. He had been working at the Tiema Group in the neighboring city of Chongqing and has a good understanding of the situation in central China. At this time, he and Yan Yongnian were following Chang Haonan, introducing the situation in the factory: However, according to the results of the police interrogation and the analysis of the files in the factory, there is still equipment worth about 28 million that has been resold. It may be difficult to recover it. Its pretty good to be able to stop the loss to this point. Chang Haonan waved his hand: In the next step, our factorys focus will still be on organizational construction, strict production, and the construction and development of new factory areas. As for recovering the equipment, Director Liao can do his best. ?In this day and age, Jiang Zhongs previous situation is definitely not an isolated case. Many things are not unclear, but involve too many things to be investigated clearly. ?Chang Haonan is a technician after all, not a savior. All he can do is reduce losses within his ability. ?Furthermore, what he cares most about is not individual equipment, but the ability of Jiangzhong as a whole to build and operate the die forging press reliably. From this perspective, it can be considered a complete victory now. Hearing Chang Haonan''s statement, Liao Xinhua finally breathed a sigh of relief. ?The superior said that a matter should be "doed as best as possible", which implicitly means that it does not need to be done. ??He has never had contact with Chang Haonan himself before, but he feels that he is too young to be ridiculous, and he is worried that he is young and energetic, so he must put pressure on this matter. In that case, it would be difficult for a small factory manager like him to be caught in the middle of a fight between gods on both sides. ?But now it seems that although this person is young, his behavior is not naive and he is considered a quite reliable leader. In addition, Factory Director Liao doesnt have to worry too much about subsequent business development issues. Chang Haonan patted an iron lump in front of him at the product exit of the foundry workshop, and then said: After the production is completely restored to stability, I will have someone conduct a product quality appraisal. If it passes the test, Jiang Zhong can be used as the first-tier supplier of Torch-C.B. Ferrari Group. ??Now the joint venture has just started. In order to ship the goods in the shortest time, the production process is a simple cooperation model in which Italy is responsible for producing the machine tools themselves, and China is responsible for the servo equipment and related software. However, according to the joint venture agreement, relatively independent supply chain systems will be built in the two countries in the future to adapt to the different market demands in Europe and Asia and to reduce production costs. This process cannot be completed by the small arsenal in Yanjiao alone. It still requires the participation of some suppliers. No matter from which perspective, Jiang Zhong is a more suitable choice. Facing such good news, Liao Xinhua could hardly hold back the excitement on his face and quickly expressed his stance: Mr. Chang, please rest assured. When I was at Tiema Group, what I was best at was improving the quality control level and ensuring that it passed the quality appraisal! Its good to have this confidence. While speaking, Chang Haonan led a group of people out of the foundry workshop. ?Several minibuses are already waiting outside. Lets go and have a look at the new factory area where the die forging press is planned to be installed. (End of this chapter) Chapter 570 Turn over and become Party A Chapter 570 Turn over and become Party A The die forging press was not set up in Jiangzhongs old factory on the west side of East Lake. Instead, an additional piece of industrial land along the river was applied for in the suburbs of Jiangcheng. First of all, heavy-duty die forging press equipment requires a special working environment. If it is modified on the basis of the existing factory area, there will be too much movement and production will be stopped during the process. Secondly, at the beginning, Chang Haonan was worried that it would be difficult to clean up the legacy of the old team at Jiangcheng Heavy Machine Tool Factory, which might have some negative impact on equipment manufacturing and future production processes. ?Later, although Liao Xinhua did a good job in the finishing work and no longer had any worries in this regard, in the end, the land was already approved and was not used in vain. ??As the motorcade gradually drove from the city center to the suburbs, the scene outside the window became more and more desolate. ??At this time in 1998, China was far from the infrastructure maniac that everyone is familiar with in later generations. Even a regional central city like Jiangcheng still looked like a large rural area as long as you walked slightly outside the city. ?Even after walking about halfway, there was no paved road left. Fortunately, the power of several cars in the convoy was still good, so no one got out to push the cars forward. The citys infrastructure construction still needs to keep up..." After getting off the car, Chang Haonan rubbed his head that was a little dizzy due to the bumpy ride, and said in a somewhat unbearable tone: We cant control other places for the time being, but the new factory area is surrounded by mud roads like this. There is no way, this place is too far away from downtown Jiangcheng, otherwise it would not be possible to get it approved so quickly and neatly. Yan Yongnian, who got out of the car immediately behind Chang Haonan, took a deep breath of the suburban air. Smells like cow dung. ?His expression froze, and he continued after a short pause: And when you first selected this land, didnt you plan a dock? Then large-sized workpieces and equipment can be transported by ship, which will save a lot of trouble. ?People of this era would never have imagined how exaggerated the pace of urban construction in China would be in a decade or so. For them, this place is basically equivalent to being in a ravine, and it is not considered the boundary of Jiangcheng at all. Liao Xinhua also nodded: Yes, at the beginning, many comrades still had some concerns about this site. They felt that it was too desolate, the environment was too bad, there were no supporting facilities, and life was inconvenient. There were many people who complained. Later, when the work started and efficiency improved, everyones views changed, especially the security department and the transportation team. There were far fewer things to worry about, and it was Mr. Chang At this point, Chang Haonan finally interrupted him with a wave of his hand: "Okay, okay, don''t flatter me too much, go inside and have a look." Mr. Chang, what I said is all the truth. How can the truth be considered a compliment..." ??Liao Xinhuas rhetoric is clear and flowing, and he is obviously very sophisticated. ?But what he said was quite true. Actually, Chang Haonan had this consideration in mind when he originally chose the location of the die forging press in Jiangcheng. In the last generation, China''s large-scale highway network construction only started after 2006. Even if this timeline is advanced due to the butterfly effect, it will definitely not be able to keep up with the project schedule of the die forging press. Furthermore, at the end of the 1990s, social security was far less stable than it would be more than twenty years later. Long-distance land transportation is still a very risky matter. How high is it? It is now 1998. In Hubei Province, where Jiangcheng is located, the slogan "Car thieves and road bullies will be rewarded if they are killed." Not only cars, but also trains are robbed. Relatively speaking, water transportation is much more convenient and safer. Compared to the surrounding area which seems to be in the wilderness, the situation inside the factory area is actually much better. After all, construction has been started for quite some time, and the work efficiency is still semi-military. The simple dock has been put into use, and the ground has been leveled and hardened. Its a pity that there are no construction site artifacts such as prefabricated houses in these days, so there are various relatively simple iron houses around. This area is the forging workshop planned to house the die forging press. Liao Xinhua pointed to an area in the direction of the factory near the dock that was obviously different from other hardened floors and said: "Because this place is too close to the river and the geological conditions are not good, in order to ensure that the foundation under the forging press does not settle or shift, we specially asked the construction team to use high-grade reinforced concrete columns to drive into the rock layer below, and then build them on top The foundation is poured to ensure that the equipments working needs will be met for at least a century to come. Chang Haonan noticed that there were about dozens of people wearing blue work clothes and safety helmets around that area. ?However, since the color can still be seen in the work clothes, it means that there is a high probability that he is not a civil engineer who is dusting. Are those people from the construction side? He asked Yan Yongnian next to him. The latter shook his head: No, in the past few days, the construction team has been strengthening the pier and preparing for the entry of heavy machinery and equipment from behind. No one is here in the forging work area. These are representatives from some of the suppliers of our project. They will report to you later on the preparations for the work. Originally, we were going to hold a meeting in the office over at the old factory, but some things, especially issues related to equipment assembly, couldnt be explained clearly on site, so we all came here. Chang Haonan suddenly understood. It turned out to be my own Party B.????This feels really good. ?He has spent his whole life being Party B for others, and now he has finally turned around and can be Party As father for once. ?Chang Haonan felt that there was a bit of wind when he walked. Lets go and meet them. There are countless units directly or indirectly involved in the construction of the die forging press, so it is naturally impossible to send people to all of them. ?Those here today are mainly the first-tier suppliers responsible for core components such as C-shaped plates, main working cylinders, support trusses and movable beams. Even so, after Yan Yongnian introduced them, there were nearly twenty. After another round of routine greetings, we finally got down to business. "Mr. Chang, my name is Duan Hongbin. I am responsible for manufacturing the C-shaped plate of the rack. I need to confirm some details with you before the process method is determined." An engineer unfolded the long roll of drawings he carried with him and laid them out on a drawing board prepared nearby. Actually, when Duan Hongbin received this production task for the first time about a month ago, he was a little confused. ? He ??has been working in the machinery manufacturing industry for twenty years, but he has never seen a situation where even the process details have been determined by the time the design drawings are sent to his hands. ?However, according to the company''s requirements, even so, he still has to follow the process before entering the production process. Then, I discovered a lot of things that I couldnt quite understand. ??But he didn''t dare to change Party A''s father''s request casually. At this time, there happened to be an opportunity to come to the site for a technical analysis meeting, so he came over on a business trip with the information. "here." ? He ??pointed with the pen to a location on the top of the C-shaped plate on the drawing. ??The place has already been circled with a red pen and marked a lot. It is obviously not something that has just been noticed. "For the welding seams of C-type plates, you are required to weld along the width direction in terms of technology, so six welding seams are needed to complete the manufacturing. However, our past specifications generally minimized the number of welding seams. If this is changed to longitudinal welding, it will only Need 4 Generally speaking, this should be the case, but the situation of this C-type plate is rather special. ?Chang Haonan took the pen from the opponents hand: During the design process, we conducted quantitative calculations on the workpiece stress corresponding to different welding methods and found that the maximum principal stress is at the transition fillet of the mating area with the clamping beam pad, and the vertical weld is located just near this position. will cause the weld to be subject to maximum shear stress. You are a professional in this regard and should know that this is a problem that needs to be avoided during the welding position selection process. ?Duan Hongbin immediately broke out in sweat. He certainly knows this principle, but the location of the so-called "maximum shear stress" was generally based on experience in the past. ?The longitudinal weld does not directly pass through the bolt hole and other parts, so according to common sense, it should be okay. But who would have thought It is directly a dimensionality reduction blow. For a workpiece of this size class can the stress calculation be so accurate? ? Duan Hongbin wiped the non-existent sweat under the helmet and asked in a tone that was obviously not confident. Well, follow Yan Gong later and ask him to show you our stress calculation results. Then you will understand. ?Chang Haonan reached out and gestured to Yan Yongnian who was standing next to him, and then replied. Stress field calculation is a step in the design process and is generally not included when sending drawings. After all, most manufacturers are engaged in processing according to drawings. Its just that this producer is obviously a bit inquisitive, so it wouldnt hurt to let them gain some insight. Hey, good, good ?Duan Hongbin saw that he found the steps and quickly got off the donkey along the slope. Mr. Chang, the main working cylinder chooses the place where the two internal arcs intersect to be fixed with a vertical hole. Is it the same reason? Another engineer next to him adjusted his glasses and asked immediately. "Yes, the maximum principal stress and maximum equivalent stress of the split working cylinder barrel are at the bolt holes connecting the cylinder bottom and the cylinder barrel. The problem of high stress is difficult to change. In contrast, although we designed The structure will also cause stress concentration at the bottom, but at least the location is not as critical as in the middle of the cylinder. ?More than half of these suppliers are "own employees" who were placed under the jurisdiction of the Equipment Industry Department during this organizational adjustment. Most of them had only learned about Chang Haonan before, but had not had direct contact with them. Now that Chang Haonan has been pouring out several rounds of answers, he can be regarded as showing off his skills in front of these veteran technicians. Soon, many peoples questions changed: Mr. Chang, please take a look at the main frame hoisting plan we designed. Are there any gaps... This is the equipment plan for supporting the truss. You have often seen it..." "Regarding the manufacturing of movable beams, because large castings cool slowly, the metal solidifies for a long time, and the wall thickness effect is prominent, our current process relies purely on experience, and it is difficult to control the casting process of such large-size products. Several simulation trial productions have found that castings The strength and impact value are low, and it is prone to thermal cracks. Do you think there is any way to adjust the process parameters more accurately..." ??Yan Yongnian and Liao Xinhua, who had been squeezed to the outside of the crowd, looked at each other. Okay, there is another on-site Q&A session... (End of this chapter) Chapter 571 Are the Japanese cheating? Chapter 571 Are the Japanese making fakes? ??As the chief designer, it is reasonable for Chang Haonan to answer some doubts of Party Bs suppliers. ?However, todays occasion is really not suitable for a long speech. In addition, time and conditions are limited, and it is impossible to answer every detail in detail. Furthermore, the on-site commander is Yan Yongnian, and he should be responsible for this job. So, after showing off his skills, Chang Haonan just wrote down a few issues that were more critical or that he was more interested in. ?For example, as someone just mentioned, guiding the determination of the casting process of large castings through numerical calculation is essentially a multi-field composite problem of temperature field and stress field. ?This is not only the research direction of Chang Haonan''s next plan, but also one of the difficulties that must be overcome before the turbofan 10 is put into production. Because essentially, the production of turbine disks and turbine blades is also a casting process that controls single crystal growth. As for those parts that are relatively easy to solve or are not very important, we can only let Yan Yongnian and Liao Xinhua deal with them. Immediately afterwards, it transitioned to the next topic. That is, the selection and supply status of second-tier suppliers. This part is all paper information and has nothing to do with the on-site situation. Lets go and talk in the car? ?Chang Haonan suggested. It is still a little cold by the river in April. I didnt feel it when I first came here, but after standing here for a long time, it really felt a bit biting. Since Party As father had spoken, the meeting venue was moved from the semi-completed construction site to the minibus that Chang Haonan had just arrived in. ?Although there are not many positions, not all Party B has the problem of second-tier suppliers. For example, Baoshan Iron and Steel completes everything from ore smelting to finished product welding by itself, so naturally there is nothing to report. In short, its a little crowded, but you can still sit down. Mr. Chang, according to your requirements, our selection of suppliers is based on optimization of supply efficiency, and there are no mandatory requirements in terms of cost and localization. Yan Yongnian handed a compiled form to Chang Haonan and said at the same time: "However, considering that the die forging press project has a significant impact and is planned as a gift for the 50th anniversary of the National Day, no mistakes can be made. Therefore, we have arranged AB backup for most of the second-tier suppliers. Even if the first choice is If there is a problem, I can also launch alternatives as quickly as possible. ?Chang Haonan nodded with satisfaction while flipping through the reports in front of him. Yan Yongnians performance in mechanical design can only be considered average, but when it comes to engineering practice, he is indeed very thoughtful. Although the localization rate of this project itself is not the highest priority, the localization of imported parts and components must be replaced as soon as possible. Chang Haonan raised his head and looked at the representatives of Party B sitting around him: The industrial scale of our country is developing very fast, especially now that there are no restrictions at the policy level. Therefore, it is impossible to just manufacture this heavy-duty die forging press, and your business will be indispensable in the future. "What''s more, there are all kinds of other heavy equipment, such as large cranes, loaders, shield equipment, mining equipment, etc., there are too many to count. As long as it is equipment that currently needs to be imported from abroad, we have it domestically. There is room for manufacturers to develop, even if it is not a project that our Equipment Industry Department focuses on, they still need to find suppliers. When the time comes, you will start early, with a complete range of products and low prices, and you will definitely be a stable first-tier player." ?These words are no longer just discussing matters. It basically points out the way for these enterprises that have just switched from the Ministry of Machinery Industry to the Commission of Science, Technology and Industry for National Defense, and their business may not be stable. ?Some people who responded quickly have even taken out their notebooks and written down the categories that Chang Haonan just mentioned casually to give examples. After all, this is likely to be the next wave of trends in the machinery manufacturing industry. If you can catch it, you will take off instantly. It has been almost a month since the Equipment Industry Department was established. Anyone with a discerning eye can almost see that the relationship between the director and Chang Haonan is very close. ?However, most people still subconsciously felt that it was Lan Xinzhi who wanted to use the latter''s mouth to deploy the work of the Equipment Industry Department. But there are still a few people who have glimpsed some truth and realize, or at least begin to suspect, that the actual situation may be completely opposite. ?However, Chang Haonan didn''t pay much attention to the mental activities of others. He just continued to look at the table in his hand, circling some places involving imported raw materials or parts from time to time, and making comments next to them. ?For example, "We need to focus on development in the future", or "This part of the market is too small, there is no need to use state power, just leave it entirely to the market" and so on. Soon, he noticed a place that was different from the previous ones. In this part, why is it not stated who is A and B among the two suppliers? Chang Haonan picked up the form and pointed to a parts supplier of the main shaft gearbox and asked. ?Hangcheng Gearbox Group Co., Ltd. is responsible for the production of gearboxes for forging presses. Its main business is the production of marine power gearboxes. After being assigned to the Equipment Industry Department, it also began to engage in other businesses. The representative of Hangji quickly gave an explanation: These are the crossed cylindrical roller bearings in the gearbox, regardless of priority. The plan is to use a 50:50 ratio and assemble products of the same brand number from Bingcheng Bearing Group and Japans NSK Group in series. ?This gameplay stunned Chang Haonan: Wouldnt the series installation of products from different manufacturers affect the stability of the gearboxs working condition? Under normal circumstances, standard parts such as bearings, gears, screws and nuts involve too many processes, so even products of the same specifications produced by different manufacturers, or even products from different batches of the same manufacturer, even if they all meet relevant standards, But there will also be some nuances. Therefore, unless there is a need other than technical reasons, it is rare to choose to assemble parts from different sources in series. Thats right. ?The other party quickly explained: NSK has always been the main supplier of our Hangzhou gear factory in the past, but this time, during the bidding process, we found that the performance of the samples submitted by Ice Axis Group and NSK were almost identical, as if they were produced using the same process. And domestic parts are cheaper. "In this case, we should have directly designated Ice Axis as the priority supplier, but we were still worried about whether there would be any non-technical problems. After all, the consistency was really strange, so we signed two supply contracts at the same time. If there is no problem with Ice Axiss products, we will gradually start cooperating with them. If other problems are found, there is still room for recovery, so that the progress of the forging press project will not be delayed. Non-technical questions? ?This statement made Chang Haonan stunned. ?The man had no choice but to continue: "In this matter, we can only speculate that Bingxian Group technically refers to NSK''s process, but in what form this reference is made...it is really difficult to determine..." Now Chang Haonan understood. Is worried about the legal risks related to intellectual property rights. In fact, for people who dont know the inside story, there is nothing wrong with this kind of worry. Everyone knows what level your Ice Axis Group has been in the past. ?Its only been a year since I last saw it, and I took out a sample from my crotch that was on par with top foreign manufacturers, and even the details of the performance indicators were so consistent. Everyone has to have some murmurs in his heart. But the problem is that Chang Haonan knows the inside story. ??The technology of Bingxian Group was even sold to him. ??Although the product developed at that time was a bearing set for turbofan 10, others also had subjective initiative. More than half a year has passed, and it is not surprising to draw inferences and come up with something new. In short, there is no need to risk copying others. Are you sure that the test results are almost exactly the same? ?Chang Haonan confirmed again. ?The other party nods: Confirmed, we also specially found two third-party agencies to conduct blind tests, and the final report conclusions are the same. Hearing this answer, Chang Haonan took a deep breath and leaned back tactically. At the same time, I have already come to a conclusion in my mind The counterfeiter is NSK Group... (End of this chapter) Chapter 572 Breaking the filter on Japan starts with you and me Chapter 572 Breaking the filter on Japan starts with you and me For Chinese people in this era, it is indeed difficult to imagine that data falsification can occur in developed countries. ?Especially because the Ministry of Foreign Affairs has been spending money on high-level marketing for more than ten years, there is still a more or less filter on Japanese companies in China. Just like the spirit of craftsmanship. Including after the reform and opening up, many domestic companies learned management and business operations, and most of the study subjects were Japanese companies at the beginning. After all, from the perspective of the time, the two countries are both East Asian countries and have many cultural connections. Even if Japans experience cannot be directly copied, it is easier to adapt to it than the experience of Europe and the United States. Of course, later on, some professionals gradually began to realize that something was not right. The things they learned were strange and of little use. But basically I feel that the national conditions are different, and few people think about it at a deeper level. But as a person who has been reborn, Chang Haonan''s thinking is much broader than that of people of this era. ? Japanese companies large-scale fraud was no longer news at all before he was reborn Rather, it would be rarer if any Japanese company had never committed any fraud. ?Although the situation in the late 1990s cannot be generalized to that in the 2020s, Chang Haonan does not remember the specific misdeeds of the NSK Group. But in short, the existing evidence has shown that the other party is highly suspected of fraud. After all, those forgery immortals in the previous life were able to produce twenty or thirty years of fraudulent records when they were found out. If you do the math, it will start exactly in the 1990s. Your Hangzhou Tooth Factory should still keep those test reports, right? After thinking for a moment, Chang Haonan asked. Of course, we must keep all these documents in case there is anything unclear in the future. ?The other party nodded and replied: "If Mr. Chang needs it, we can provide you with a copy, but the original...According to the factory''s regulations, unless there is an express request from the superior or the police, it must be kept in the file." He was obviously worried that Chang Haonan would ask for the original copy immediately, so he took the precaution first. It doesnt matter, a copy is enough. Please contact us as soon as possible and ask them to send this fax. ?Chang Haonan tore off a page from the notebook he carried with him and wrote the fax number of Yang Huimei''s office on it. Although I had always thought about setting up a department responsible for publicity, Professor Yang later became more and more skilled in this area, and he continued to pluck hair from a sheep. After all, the other party is also an executive of a state-owned enterprise, not an ordinary worker. There is no psychological burden when squeezing it. Yes, Ill do it after I get back today! For most of the other people in the car, this episode was a minor episode at best. It looked like Chang Haonan was going to investigate the situation thoroughly after learning about it. ?In addition, in this round of organizational adjustment, Bingxian Group was not included in the management of the Equipment Industry Department, but directly became an ordinary local state-owned enterprise. Therefore, some people are speculating whether Lan Xinzhi or Ding Gaoheng is planning to borrow the help of Mr. Chang to further expand their power by taking advantage of the momentum of the die forging press project. ?However, not everyone is looking in the wrong direction. After todays entire trip, on the way back to the city, Yan Yongnian specifically found Chang Haonan. ? He ??is more familiar with the latter, and has heard that the other party has assisted several special steel companies and bearing gear companies in developing products, so it is easier than others to see some of the tricks. Mr. Chang, why do I feel that something is not right? "Last year, a few of my friends from the Bearing Research Institute accidentally mentioned that our country''s bearing industry suddenly entered a small explosion stage, and specifically mentioned Ice Axis by name, and came up with a new product in the field of automotive bearings. Several nice products If Bingzhuo Group used special means to obtain other peoples process technology, it would be unlikely to share it with such a big fanfare that it would drive the entire industry forward, right? He did not directly mention Chang Haonans name in the question. After all, leaders may sometimes want to maintain a sense of mystery. "In this case, can it be a complete coincidence? Two companies have developed very similar process technologies, and then happen to be very close in the performance of a certain batch of products?" Liao Xinhua''s tone was full of questions, obviously I think this possibility is low. Performance characteristics are somewhat similar to human fingerprints. Although it is theoretically possible that they may appear the same, in fact the probability is completely negligible. Of course it cant be a coincidence. Chang Haonan waved his hand and straightened the seat that he had just put down, and he also sat up: But have you ever thought about another possibility? ?Yan Yongnian and Liao Xinhua looked at each other. After thinking for a moment, they shook their heads almost simultaneously. Human knowledge will not exceed that of the time in which he lives. It is normal for two people to react like this. "The performance difference between the products produced by the two companies is smaller than that between different batches of products from the same company under normal circumstances. It can even make the Hangzhou Gear Factory think that the string installation will not affect the working stability, even if the same gear is used. This kind of technology is simply unrealistic. If the results on the test report are really what they just said, it means that these bearings not only use the same production technology, but are even made on the same assembly line! ?At the end of his speech, Chang Haonan tapped the small table in front of him to emphasize the point. MeanOEM? Liao Xinhua, who has been engaged in business operations for a long time, is more familiar with these things and blurted out immediately: Thats what Ice Axis Group started from Halfway through the answer that subconsciously popped into his mind, he realized something was wrong. Nothe person just said that Ice Axis products are cheaper and the supply volume is still large. It is impossible for OEM to achieve low cost and high shipment volume at the same time That means ?Yan Yongnian and Liao Xinhua took a breath of air-conditioning together: Maybe its the other way around, where NSK Group purchases Bingzhuo Groups products in bulk and then sells them under its own trademark? Chang Haonan nodded: Its not possible, but its likely to be the case. "this" ?Although they may have come up with this on their own, the two of them still had an unbelievable feeling when Chang Haonan nodded. It even means that the worldview has collapsed. The image of Japanese products has been established in China through various methods since the early days of reform and opening up. In the past more than ten years, it has almost never encountered any large-scale challenges. It is generally believed that although there is still a gap compared with the top European products, it is basically a perfect balance in terms of price, performance and service. In the Chinese market, it is generally classified into the ranks of high-end goods. However, just today, the naked reality tells them that there is a Japanese company that is well-known in the industry and directly sells domestic products under the OEM... ?According to the Thousand Cockroaches'' Law, it is absolutely impossible for them to just use OEM products in this supply agreement. ?However, it has never been discovered before. In other words, in terms of performance, the products of our Bingcheng Bearing Group are not inferior to NSKs original products at all? ?Yan Yongnian quickly figured out the joints: Otherwise, people would have discovered it long ago if they were using OEM goods to top up their accounts. Its not bad. Chang Haonan gently shook his finger: The materials and processes used in these recent products of Ice Axis are all solutions provided by our Torch Group. "I can''t vouch for the big European manufacturers with a century-old heritage. After all, they have a lot of wealth, and they might be able to find some treasures from the old papers of the past. However, it is absolutely impossible for Japanese and Korean companies to develop the same level of technology in a short period of time. " They choose to sell products under OEM brands, not because of simple cost issues, but because they cant make them! (End of this chapter) Chapter 573 An opportunity to rectify the name of Chinas machinery industry! Chapter 573: An opportunity to clear the name of Chinas machinery industry! After Chang Haonan finished saying this, there was a silence in the minibus. Only the hum of the engine and the sound of the car outside the window were heard in everyone''s ears. Not only Yan Yongnian and Liao Xinhua, but also other people in the car who had just been talking soy sauce and did not interrupt. Almost always stopped thinking for a moment. For them in this era, the amount of information received in a short period of time is indeed a bit too much. Take some time to digest. So Chang Haonan was not in a hurry to continue talking, but waited quietly for a few minutes. By the way, lets let the atmosphere brew again. Finally, Yan Yongnian, who had already seen Chang Haonans level, was the first to react: "Mr. Chang, what do you mean...are you going to collect evidence and then go through legal procedures?" Obviously, his thinking is still relatively traditional. There is little point in going through the legal process. Chang Haonan waved his hand and said in denial: Unless it can be proven that they have stolen trade secrets, the process parameters themselves do not constitute a patent. Besides, they did not take the technology over to produce it themselves, they just changed hands. "Furthermore, large companies like NSK Group will not directly engage in retail sales to ordinary consumers, and consumer fraud is out of the question. At most, Party A such as Hangzhou Tooth Factory can only sue the other party for contract fraud, but this kind of lawsuit is a rip-off. It takes too long and the impact is very small. Even if they win the lawsuit, it will only cost them a lot of money. " ?These days, Im afraid no one would think of avoiding OEM in advance when signing a contract with a foreign company. Even if origin restrictions are added, this is a gray area that is difficult to define. Purchasing the bearings together, shipping them back to Japan, stamping them with codes, and putting them in their own packaging. From a legal perspective, it is difficult to say that they are not produced in Japan. Everyone around was stunned. ?Immediately, I quickly realized that since Chang Haonan said this, he obviously had other purposes besides getting compensation. In fact, this set of operations of NSK Group is not unfamiliar to people sitting in the car. It is not uncommon for domestic companies in China to OEM imported products and sell them as domestic products in recent years. Even this has become one of the open conditions for many foreign companies to acquire domestic companies at bargain prices. ??It''s just the reverse operation, which no one has ever seen before. As the psychological shock that they first heard the news gradually passed, everyone''s IQ gradually regained the high ground. I think Mr. Changs intention is to use this opportunity to reduce the domestic market share of Japanese bearing companies. As a business manager, Liao Xinhua is relatively sensitive in this regard. But he is obviously still a little conservative. Broaden your horizons, there is no need to just focus on the domestic market. ?Chang Haonan adjusted his sitting posture and placed one hand on the small table in front of him: NSK Group has a considerable market share in the field of mid-to-high-end bearings around the world. Originally, the machinery manufacturing industry should have a lot of reputation and inertia, and it is not so easy to reshuffle. "But this time, since they have given the opportunity, we must make big news and let the whole world know that NSK bearings are actually produced and re-branded by us in China, so as to establish the brand image of domestic products. ! Hearing this, Liao Xinhua couldn''t sit still. Having worked in the corporate world for more than 20 years, he is very clear about the significance of reputation and brand image. Even when many countries buy weapons and equipment, they place orders with their eyes closed based on preferences, let alone the civilian market, which is more blind. A good brand image brings extremely obvious buffs to the product. ?For example, more than 20 years later, some Japanese cars that have been reduced to the limit can still sell tens of thousands of cars in China every month. People''s concepts are sometimes difficult to change. Now, there is a big gift package sent by the Japanese themselves in front of them. ??If done properly, not to mention replacing the other party''s position in the industry in one fell swoop, at least whenever the NSK Group is mentioned in the future, others will immediately think of this OEM incident. For current Chinese enterprises, this is already a great progress. "In this case, we still need more conclusive evidence. After all, NSK still has a certain position in the industry. If the Hangzhou Gear Factory alone comes out to accuse, I''m afraid it won''t be loud enough." Liao Xinhua suppressed his inner excitement and fantasies about the future. Continuing the analysis: It would be best to find more users like Hangzhou Gear Factory. We can even catch a wave of fish and purchase a batch of bearings from NSK first, and then collect more evidence... ?Although he looks calm and calm on the surface, his voice is slightly different from usual. Theres no need to go to such trouble. Chang Haonan naturally saw at a glance that the other party was full of expectations but had to pretend to be calm due to his image, and replied with a smile in his tone: Although Ice Axis Group is not under the jurisdiction of the Equipment Industry Division now, I personally still have some connections there. Besides, this matter will be of no harm to them, so I just go and check their sales records. When NSK does this kind of thing, it must change hands through middlemen. However, when it comes to selling OEM products, they usually purchase them in centralized, regular and large quantities. Its not difficult to find them if youre interested. What else At this point, he paused slightly: Japanese companies have a very strong guild nature, and there is a lot of cooperation among them. I dont believe that only NSK is doing this kind of thing. ! ! The whole car seemed to sway slightly because of these words. If thats the case, thats really Yan Yongnian didnt even know what words to use to describe his current mental state. ?I wanted to say it was great, but I felt that it was a bit gloating, which was not in line with his personality as a scholar. ??But Liao Xinhua didn''t have this kind of psychological baggage, so he slapped his thigh and expressed his thoughts. : "That''s great!" I never thought we would have a day when we can be proud and proud of ourselves! ?If it is true as Chang Haonan said, then this may completely become an event that triggers a major earthquake in the entire bearing and even the entire machinery industry. You must know that Japanese companies represented by Nippon Seiko (NSK), Toyo Seiko (NTN), and Koyo Seiko (KOYO) have formed an industrial alliance to a certain extent, and even compete with established European manufacturers on some products. There is a reply. This is a huge bonus. Chang Haonan stretched out his hand and pressed it down in mid-air, and then stopped the commotion in the car: This matter really needs to be carefully planned. You cant be impatient. You must have a large enough influence in the first wave and kill the opponent in a short time. So dont act in private. Let me make a unified plan! It should be said that Chang Haonan is very lucky. On the night when this incident happened, after he returned to the capital, he immediately met Lan Xinzhi who came to him to report the news. Although the latter has now risen half a level in rank and has become the leader of an independent department, the nature of his work has not changed much. Essentially, I am still a secretary. Of course the future is no longer the same. Mr. Chang, the news from Aviation Industry Import and Export Company is that they have received an official letter from Eurocopter, asking if we are interested in cooperating to develop a 10-ton general-purpose helicopter. Ten-ton levelisnt that the size of a black hawk? You can make ice fly over there ?Ten-ton helicopters are one of the two most important classes of general-purpose helicopters (10 tons and 13 tons), and there is definitely a demand for them. ?However, since there has been a precedent of cooperation with AgustaWestland, this kind of thing should be familiar to Bingfei. Then we will see what form the other party hopes to cooperate in. So what Chang Haonan subconsciously wanted to say was to let Bingfei directly take charge of the docking. But halfway through speaking, he suddenly realized that this should be an opportunity. He thought about it and it seemed that the only 10-ton helicopters available from Eurocopter were the NH90. This is considered a dual-use model for both military and civilian use. Although I dont know what kind of tricks the other party has carried out to be able to carry out technical cooperation with China on a military product, if the OEM bearing matter can be allowed to break out in this matter, the impact will obviously be greater than Just a few domestic users are much larger. From this perspective, the helicopter project itself is not that important. After all, helicopters of the same level also have conflicting ecological niches. It is not easy to say whether China, especially military users, prefer the Black Hawk configuration or the NH90 configuration. You put the information sent over there to me, and Ill see if I can ask Manager Yang to talk to Eurocop directly. (End of this chapter) Chapter 574 Are you really a fake immortal? Chapter 574 Is this really a fake immortal? ?According to Chang Haonan''s experience, Europe generally does not move very quickly, so the top priority is to thoroughly investigate the OEM fraud incident involving NSK. Firstly, it is to know yourself and the enemy in the subsequent layout, and to obtain the maximum benefit by calculating mentally and unintentionally. Secondly, we must first give a warning to the country, or at least the Science and Technology Commission system. At least let everyone be more careful when considering Japanese suppliers in the future. After all, this time I just bought the bearings produced by Huaxia as OEM. It was just a waste of money at most, but at least it would not cause any quality problems. But who knows how many undiscovered bad things are hidden behind this? Those things that were discovered more than 20 years later were almost all related to defects in the products themselves. Being more vigilant cant hurt. By the way, it can also dispel some peoples stereotypes. Therefore, when Lan Xinzhi was about to leave after talking about the matter, Chang Haonan specifically stopped him: Send someone as soon as possible in the next few days to Bingcheng Bearing Group to check their sales in the past six months. Pay special attention to whether there are a large number of customers who have stable purchases but cannot see any clear purpose. As the director of the Equipment Industry Department, Lan Xinzhi will naturally follow up on the situation of the die forging press project in real time. He already knew that Chang Haonan suspected that NSK bearings were OEM. The initial shock stage had passed, so unlike Liao Xinhua, Yan Yongnian and other people before, who still needed extra time to digest, he could also guess that Chang Hao The purpose of this instruction: Ill make arrangements as soon as I get back. After answering, he hesitated a little: But Mr. Chang, Bingcheng Bearing Group is not under the leadership of our Equipment Industry Department. If we just go ahead and directly ask for their business data, Im afraid the other party may not cooperate, right? Chang Haonan waved his hand: It doesnt matter. I have had some dealings with Zhang Xu, the former head of R&D of Ice Axis Group, oh, he should be the deputy general manager now. "I have contacted him before in Jiangcheng. There will be no problem. Just ask someone to bring the letter of introduction and official letter. If you find any useful evidence, you can even make a copy and bring it back. After all, If this matter can have a greater impact, it will also be meaningful to their groups operations and brand image. At this point, he changed the topic again: Of course, the comrades we send there must also be reliable and ensure that they do not reveal other peoples business secrets. Trust cannot be treated as a childs play. At this time, Lan Xinzhi basically admired Chang Haonan. As expected of Mr. Chang, not only has a wide network of contacts all over the world, but he has already taken care of everything... After thinking for a moment, he answered: "Then I''ll let Lin Baohua and Fan Wenkang go there together. They can be looked after and supervised. Moreover, they have clean backgrounds and have worked with you before." Chang Haonan quickly remembered that these two people went to Jiangzhong with him last year to investigate the situation, and they indeed knew the basics: The two of them have also been transferred to the Equipment Industry Department? Lan Xinzhi nodded: Yes, when the new department was established, two people took the initiative to apply and are now working as team leaders in the Industrial Coordination Office. ??When the two of them went to Jiangcheng with Chang Haonan before, their rank should have been chief section officer, which was equivalent to a full-time clerk. According to the establishment, the most basic department of the ministries and commissions is the office at the division level, and there are no actual department-level leadership positions. But when dealing with some trivial tasks, people of this level are needed to take care of things. So although team leader is just an internal term, the weight of his position is completely different. Okay, lets take them, just to see if they have the ability to stand on their own. ?Although he does not have a formal position in the Commission of Science, Technology and Industry for National Defense, at least in the Equipment Industry Department, Chang Haonan''s words still carry a lot of weight. Chang Haonan originally selected these two people because they did not have other complicated backgrounds in the capital and their positions were relatively reliable.?????In the future, there will inevitably be times when such people are used. "Also, let the companies under the Equipment Industry Department check to see if there are any similar situations. Actions of this scale and level cannot be hidden from peers in Japan. Since there has been no news for so long, I I dont think other Japanese companies in the industry are doing much better. It should be said that as long as the system of the Commission of Science, Technology and Industry for National Defense is in operation, its work efficiency is indeed very high. Even somewhat exceeded Chang Haonans initial expectations. In less than a week, first-hand information or clues from various sources came to Chang Haonan. "Dear leaders and comrades, according to our investigation during this period, we can confirm that NSK and NTN purchased large quantities of finished products from Bingcheng Bearing Group and Luoyi Bearing Group, repackaged and calibrated them in Japan, and then pretended to be them. The products they produce are then sold back to our country and they make huge profits. ?In the conference room on the top floor of the Science and Technology Commission, Chang Haonan held up a document in his hand and said loudly to everyone present. Still an enlarged meeting of the leadership team of the Commission of Science, Technology and Industry for National Defense. ??Its just that in addition to Chang Haonan, Lan Xinzhi was also included this time The director of the Equipment Industry Department was not originally a member of the team. When he was a secretary before, he participated as a record-keeper rather than a participant. After finishing speaking, Chang Haonan picked up another one from the piles of documents in front of him: Beginning in the fourth quarter of last year, the two groups registered and established a number of small and inconspicuous companies in several coastal provinces under different names, and then purchased large quantities of finished products from Bingzhuan and Luozhou at wholesale prices, and then purchased them for repairs. The parts are shipped back to Japan for OEM operations, and the profit gained from such a change of hands is on average more than 5.5 times that of our domestic manufacturers! When Chang Haonan said this, some people could no longer hold their nerve. But he immediately picked up a third document: A total of 74 bearing models can be found, mainly in the three fields of vehicles, construction machinery and machine tool equipment, especially vehicles. For example, NTN Company, as one of the designated suppliers of domestic Santana automobile wheel hub bearings, purchased 350,000 bearings from Luozhou Axis through white gloves this year alone, of which more than 310,000 have been resold domestically. 310,000? Such horrific figures have shocked everyone for a whole year, so much so that Deputy Director Zhang Dongxu shook his hands and spilled the water: I remember that Santana only sold 240,000 units last year. Less than four months have passed this year. Even if there are 60,000 vehicles and 240,000 wheels, wouldnt it be..." Thats right. ?Chang Haonan nodded and replaced it with another new document: We sampled 115 wheel bearings used in this years new Santana in different cities and found that they were all produced by Luozhou, and none of them used NTNs representative processes and materials. And thats not all, through communication with the car manufacturer, we found that the performance calibration of the wheel bearing technical manual provided by NTN is even higher than the factory calibration of Luozhou Axle! Others, even Lan Xinzhi, were speechless. Its just a matter of OEM. After co-writing and labeling, do you still need to add water to the performance indicators? Actually, let alone anyone else. Even though Chang Haonan himself was mentally prepared, he was still stunned by NTNs operation I knew you could fake things, but I didnt know you were so good at it. Are you really just making a fake immortal? (End of this chapter) Chapter 575 Dig a hole for your little life Chapter 575 Digging a hole for Xiaoli Unexpectedunexpected Huai Guomo screwed up the thermos cup in his hand, the expression on his face still showed some disbelief: In the past, I only heard that some companies in our country would do this, laundering imported goods into domestic products to meet the localization rate indicators of superior units. But now it seems that this may still be the experience obtained from outside..." A sentence that was half sarcastic and half humorous, which broke the somewhat stiff atmosphere in the conference room. From another perspective, this also shows that our countrys development level in the field of bearings may be higher than we imagined. ?Zhang Dongxu also took up the conversation with a smile, but then changed the subject: "It''s just that, according to what Comrade Haonan just said, almost all of the profits were made by foreign companies that used OEM services. This did not make our company make money, nor did our country''s automobile industry benefit from it." Cost reduction is the next step that we, especially Xinzhis Equipment Industry Department, need to solve. Of course, how to do it specifically, whether through legal procedures or other methods, we still lack experience in this area, and we need comrades from the Ministry of Machinery Industry to play their role. After all, the Commission of Science, Technology and Industry for National Defense is mainly responsible for the national defense industry. Although there were enterprises and products that were converted from military to civilian products in the past, it was not its main business after all. ??Now that we have suddenly acquired a new authority such as the Equipment Industry Department, it is indeed a new challenge. Ding Gaoheng, who had not spoken much just now and whose expression had always been relatively relaxed, tensed up almost instantly and sat up straight: Are you sure? ??The speaker this time was Lian Jiexin, another deputy director who was newly appointed last month and is also the director of the National Aeronautics and Space Administration: "I see, after today''s meeting, several of our business departments went back and asked the following to check to see if there are any similar situations. If so, we will immediately terminate the cooperation in the name of product fraud and transfer the procurement contract to Go to our domestic companies! Are there any masters? ?Although the others did not say it out loud, judging from their eyes and expressions, they all had similar meanings. Chang Haonan said and patted another pile of materials in front of him: However, through random testing of samples and interviews with companies and users, we have enough reasons to suspect that many companies, including Kobe Steel, Sumitomo Metal, Mitsubishi Motors, Mitsubishi Electric, and Hitachi Chemical, have products in production. Fraudulent quality and testing data. ?Seeing that the emotions of this paragraph were already in place, Chang Haonan began to add more weight: Actually, based on some clues we have discovered so far, it is possible that the bearing industry is just the tip of the iceberg of Japanese companies fraud. If the incident between NSK and NTN just now gave everyone more of an unexpected and amusing mentality, then this wave of roll call is almost equivalent to dropping a bombshell into the rippling lake. . We have not yet discovered the re-branding of products imported from our country. ??Although neither Luozhou nor Bingxuan is an enterprise under the Commission of Science and Technology, there is absolutely no reason for the Japanese to make away with the OEM money, whether from the perspective of supply chain security or from an economic perspective. NTN and NSKs bearing products are very well-known in the industry, and their market share is not low. Even our aerospace industry has signed supplier contracts with them for many projects. Those sitting in this conference room have all done some specific business work. ?This proposal quickly resonated. So many companies have problems with their products? ??Everyone who was still racking their brains to think about how to implement the operation after returning immediately raised their heads and looked at Chang Haonan again. In everyones mind, Japan is, after all, a mature and even relatively old industrial country. It is understandable that there are one or two isolated cases, but this large-scale fraud has completely broken through their understanding of a normal industrial operation mode. There is basically nothing wrong. Chang Haonan nodded: Because for most industrial products, the truly reliable detection method is destructive testing, so samples can only be randomly inspected, and the operating space in this process is really too large. "Many supply contracts last for several years or even longer, and random inspections are also carried out according to the cycle. They can make normal deliveries during the inspection period, and at other times use inferior products to top up the supply. In this way, even if something goes wrong occasionally, You can also use excuses such as work mistakes to avoid arousing widespread suspicion. " This time we had an unplanned surprise attack, so we found out a lot of interesting results. If this is the case, I have to report the situation immediately. Ding Gaoheng was already a little unable to sit still: Japanese companies have had very frequent business dealings with us over the years, many of which involve major projects directly led by the top management. "Take a few examples that Xiao Chang just cited. Sumitomo Metal is a structural steel supplier for the water diversion equipment in the second phase of the Three Gorges Project, and it is a structure that will be poured into the dam body for permanent use. Mitsubishi Motors supplies a large amount of commuting equipment to the People''s Liberation Army. Hitachi Chemical, the complete vehicle and parts of the command vehicle, is one of the core suppliers of integrated circuits in our country. When I was chatting with Director Song of the Science and Technology Commission a few days ago, he also said that their technology should be introduced into the newly built semiconductor industrial park in the country... " ?Seeing Ding Gaoheng who looked anxious, Chang Haonan knew that his goal today had been achieved. ?The reason why he specifically named those companies just now was because he was aware of their status in China and attracted enough attention. Not only from Ding Gaoheng, but also from above. After all, the scope of this matter is too wide. Japanese companies have been working in China for more than ten years. Coupled with the long-term and subtle public opinion indoctrination, the relevant interest groups behind them are even larger than the previous aviation industry. To say that Japanese companies are committing fraud is tantamount to the collapse of their faith for some people. ?Hence, if it is just the Science and Technology Commission and the Science and Technology Industry Committee that act on the stage, there is no guarantee that they will not encounter any resistance. Director Ding, if we want to achieve the best results in this matter, we must take two steps and work together. Chang Haonans words calmed down Ding Gaoheng: "What''s your plan?" ?According to his understanding of Chang Haonan, at this time, it usually means that the other party already has an idea or even a mature plan. "On the one hand, we should conduct inspections domestically, especially on key projects, increase the intensity and frequency of random inspections of Japanese companies'' products, collect and retain evidence, and if problems are found, do not alert the snake for the time being, try to delay the other party, and at the same time look for alternatives. suppliers to minimize the impact on project progress. On the other hand, our Torch Group has recently taken on several business cooperation projects with Europe. ?Chang Haonan adjusted his posture slightly and showed a smile: "I know that NSK Group has a branch in Stonehouse, UK, that specializes in aerospace-related businesses. It is currently eager to explore the high-end market in Europe. I think that as long as there is a little guidance in the project, it will not be difficult to let Europeans go Use their products. "Their large-scale counterfeiting cannot only target the Chinese market. I can specifically raise the requirements for the performance of parts so that NSK cannot directly use existing products to supply, and then let the domestic bearing groups prepare in advance. The model that meets the requirements is ''just'' launched on the node." Whether NSK is directly counterfeiting, or like this time it purchases products from our country and then resells them under brand names, it will not be difficult to obtain evidence when the enemy is overt and we are covert. Wait until then, then expose all these things at once, just like the Boeing-McDonnell Douglas merger case, and work with the Europeans to catch them off guard! At this point, he clenched one hand into a fist and knocked twice on the stacked materials on the table: Lets keep these things as evidence of guilt first! (End of this chapter) Chapter 576 The world is changing quietly Chapter 576 The world is changing quietly ?After all, Chang Haonan''s plan has been carefully considered for several days, and it also comes with the prophet buff unique to reborn people, so naturally there is nothing wrong with it. ?So after a brief discussion, it was finally determined and became the official plan of the entire Commission of Science, Technology and Industry for National Defense to deal with this large-scale fraud incident by Japanese companies. ??Moreover, at the end of this enlarged meeting of the leadership team, the plan was given a slightly middle-of-the-road name Generation plan. It means to use this opportunity to reshape the image of China''s industry, replace Japan, and occupy at least a mid-range position in the international supply chain system. This can be said to be a decisive leap. You must know that at the moment, China is still at a low level in this system. Not even low-end. At the low end of the supply chain, it is mainly South Korea. ?Due to Chang Haonans contribution to Chinas overall industrial level and the Japaneses own assistance. Of course, considering the size of China, as long as some of the top companies can occupy the middle position, the army that follows them will not be able to let go of the lower parts... ?This is also a task that took China Industry the first 20 years of the 21st century to complete in the previous life. What is industry paraquat? For some key projects, progress reports will be submitted regularly to higher-level units, namely the Commission of Science, Technology and Industry for National Defense and the General Armament Department. Under normal circumstances, China needs to proceed step by step, such as fighting monsters and upgrading, first entering the international supply chain, occupying or replacing South Korea''s position, and then having the possibility of challenging Japan. This number is determined based on long-term experience and is a balance between the frequency of information updates from superiors and the workload of writing below. tactical fallback.gif. Depending on the nature and scale of the project, the specific reporting frequency is generally quarterly, half-yearly or once a year. What is a developed country crusher? This process is entirely possible to be completed directly 20 years in advance. As for Turbofan 10, I heard that the fan and compressor have basically completed the design process. What is the current progress? ?As far as the matter at hand is concerned, the top priority is to conduct a comprehensive supplier reliability investigation in China. ?Similar to a buggy speedrun game, the miscellaneous soldiers and elite monsters in the middle are simply skipped, and only the key stage bosses are fought. ? Its not just Japanese companies that need to take advantage of this opportunity to eliminate as much as possible those who are involved in key projects and lifeline industries. After the meeting, Chang Haonan was about to pack his things and leave when he was stopped by Ding Gaoheng from behind: Xiao Chang, do you have any work to do later? ?The former looked back and was not sure what this question meant for a while, so he had to give a dilemma answer: "It''s nothing particularly important. Our group has been doing supplier inspections all the time, so there is no need to make any big moves this time. The two major projects of die forging press and Taihang engine are currently on track, so there is no rush. What do you need me to do?" ?Of course, these are all impacts that will have to wait until the plan is completed. Hearing Chang Haonan talk about Turbofan 10, Ding Gaoheng instantly became energetic and temporarily deviated from the original topic: Even without the Korean in the middle noticing it at all. But now, times have changed. In the past, this system has been working very well. Even for projects with relatively fast efficiency, it is generally considered good if they can achieve a little progress worth reporting each quarter, and most of the content will be similar to the last time. However, when it comes to Chang Haonan, between the two reports in February 1998 and November 1997, apart from the author and title, there are almost no similarities... ??If you really want to report every time you do something, then you probably have to change it to weekly or even daily updates... But the project progress report is not like writing an online novel. If it were submitted once a day, neither the person who wrote it nor the person who read it would be intolerable. So, even though it has only been more than a month since I last read the report, Ding Gaoheng cant wait to update it... ?Although Chang Haonan is not in Shengjing recently, he still pays daily attention to the progress of the project, so he naturally answers fluently: Not only the fans and compressors, but also the individual design of each major component has basically been completed. Now Haitong is leading the entire project to integrate the entire machine, and by the way, fine-tuning is based on the matching between different subsystems. "As far as the normal project progress is concerned, the next step should be to conduct component-level performance testing of each component. However, because the design and production of the turbofan 10 are carried out at the same time, before that, we have to wait for the Liming Factory to Coordination and testing of a large number of new processes to be used. Your progress is so rapid... Even though Ding Gaoheng had been mentally prepared, he was still surprised by the efficiency. You must know that it has been less than a year since Chang Haonan took office as the chief designer of Turbofan 10, and the paper design work has already come to an end. In the past, the technical plan could be finalized only one year after the project was established, and the specific design work had not even started... At the beginning, because the comrades participating in the project came from many different units, it took some time to adapt, and the efficiency was slightly lower. Later, everyones working methods matched, and the progress naturally accelerated. In addition, some comrades who came from small institutions may have slightly worse foundations, but they work very hard and make rapid progress. Some of them could only do some side jobs at the beginning, but now they are able to stand alone..." ?Chang Haonan is still the same old method.????Faced with praise, first praise your subordinates. In this way, every sentence does not mention oneself, but every sentence refers to oneself. Ding Gaoheng opened his mouth, but felt that he had nothing to say technically, so he had to ask instead: So are there any difficulties that need to be solved now? During the previous meeting, the budget approved by superiors for the aviation industry this year was nearly double that of last year, so the financial aspect can be slightly more relaxed than in the past. So generous? ?Chang Haonan was also surprised. Increased investment in the aviation industry is not unexpected. After all, the results of the past two years are tangible and the confidence feedback to superiors is very timely and sufficient. However, things like increasing funding generally highlight a long-term problem Even if it increases by 20% every year, it will only take less than 4 years to double, which is actually a quite terrifying speed. ?The last time he heard about this kind of thing doubling in a year was when the semiconductor industry was just sanctioned before the rebirth. Ding Gaoheng had a slight smile on his face: According to the superiors original words, he praised our Commission of Science, Technology and Industry for National Defense, especially the aviation industry system, for greatly improving Chinas international status and improving the countrys international environment. Comrade Xiao Chang, you should know the weight of this evaluation... ?Chang Haonan suddenly became enlightened. Obviously, this is no longer just a problem of technology or national economy. Rather, it was directly elevated to the level of national dignity. Naturally, it cannot be judged according to common sense. Not to mention anything else, the weight of our countrys words in the WTO accession negotiations is completely different from the past. Ding Gaoheng continued to add: Previously, our negotiations were mainly conducted one-on-one, and we were alone. Basically, we could only rely on the market of 1.2 billion people to negotiate terms with others. But recently, some European countries have begun to publicly express their hope that we can enter the world trading system earlier and contribute to the process of trade globalization. This kind of statement has also put considerable pressure on the United States, which has already relaxed its attitude. Our negotiators can obviously feel that the communication process between the two parties has become much easier..." In international relations, in the final analysis, strength speaks for itself. ?At this time, the United States is not at the point where it completely ignores the opinions of its allies. Even in the previous life, 1998 was basically the pinnacle of European integration thinking. ?Its just that the peak was too short, and the ensuing War of the Yugoslavia quickly dealt a heavy blow to the EU, which was ready to go. Then it went downhill. In today''s timeline, due to Chang Haonan''s operations, the Europeans are even stronger. The right to speak cannot be underestimated. Its just an unintentional act ?Chang Haonan is not entirely modest. Such a complex butterfly effect was indeed not something he could have predicted at the beginning. No matter what, your contribution is real, and this is what gives us the confidence to talk to our superiors. As he spoke, Ding Gaoheng took Chang Haonan into the office and prepared to change clothes and get off work: So if you have any difficulties that need to be solved, you can raise them. As long as the money can be provided, many problems are actually not a problem ?Hand in the middle of saying this, Chang Haonan suddenly remembered something and changed the subject: However, since this is the case, I think we can propose the matter of splitting Aviation Engine Power from the Aviation Industry Corporation. At present, each of the five major military industrial corporations has been divided into two, and the main tone of group reform has been determined. However, the aviation industry and shipbuilding industry, which are more involved, have not yet finalized the specific operation methods. Originally, Chang Haonan planned to postpone the matter until the Turbofan 10 was finalized and he had enough chips, before he mentioned the establishment of an independent group in the aviation development field. But now it seems that there is no need to wait until that later. ?His name alone, Chang Haonan, is already quite convincing. "That''s fine. The boss has not made a final decision yet. If you are sure you want to mention it, I will ask the office to prepare the relevant report tomorrow and submit it as soon as possible." Ding Gaoheng answered as he put some things on his desk into his briefcase, then raised his head and looked at Chang Haonan on the sofa next to him: Come and sit at my house and have dinner by the way. Your Aunt Nie is making dumplings at home today. (End of this chapter) Chapter 577 GPS navigation interference test Chapter 577 GPS Navigation Interference Test When your boss asks you to go home for dinner, even if it is a question, it cannot really be treated as a question ?If you dont answer, it will be difficult to maintain this working relationship in the future. What''s more, Chang Haonan subjectively really wanted to pay a visit. Ding Gaohengs wife is one of the main persons in charge of my countrys underwater launch vehicles, that is, submarine-launched ballistic missiles. An old-timer who is famous but very low-key. ?Seeing Chang Haonan nodding almost without hesitation, Ding Gaoheng happily put on his hat and picked up his packed briefcase: Lets go, take my car and go together, and let Xiao Zhu pick you up after eating... At the same time, Jinling and Dajiaochang Airport. Xu Yang jumped out of the passenger seat of a Jiefang truck, and together with several people in the car behind, carefully unloaded a cylindrical device placed in the cargo box onto the tarmac. Compared to Beijing, which is still a bit chilly in the early morning or evening, the climate along the Yangtze River has clearly entered mid-spring. Xu Yang raised his eyebrows slightly: "Fine" ??Guo Lin pushed a metal car about half a person''s height from a distance and said as he walked: But before formal testing, I think its better to conduct a set of controlled experiments to see how it works without interference. If the first test doesnt go well, you wont even have the chance to try it again. Therefore, the interfered object in the final test plan became a GPS-guided car that can perform simple turning operations and drive to the predetermined target. In her scientific research career, this was the first time that someone else took special care of her progress. In fact, 14th had already completed the main hardware part of the GPS jammer before. What Xu Yang needed to handle this time was mainly to write the software part according to the new algorithm and conduct performance testing of the final product. ??Xu Yang casually smoothed his hair that was blown by the wind: In the past, she had always slowed down to adapt to others. XCMG, with this GPS jamming pod, I feel like Mr. Chang is very anxious? Leave aside the fact that China does not have ready-made satellite-guided weapons available at present. Even if it did, it would be impossible to really drop this only set of weapons from the sky. ?After choosing, only the airport barely meets this condition. On the way, Guo Lin casually asked: ?According to the expectations of Chang Haonan and Xu Yang, the main function of this jamming device should be to deal with GPS-guided munitions, such as cruise missiles or satellite-guided bombs such as JDAM. What''s more, Chang Haonan also wants to maximize the use of the remaining value after the test process is over, and then build a second jammer... ? ?The action logic of the car is the same as that of a bomb. After discovering that the route has deviated, it will turn in the other direction until it coincides with the set route, without avoiding any obstacles in the middle. ?But at this critical moment, she couldn''t care so much. Then, together with several fellow engineers, he pushed the car towards the set starting point for the test. ?So we made some contact with the Air Force and borrowed the Daqiaochang Airport where the planes had returned in the evening as the venue. About half a month ago, she was in the laboratory when she suddenly received a call directly from the director of the Commission of Science, Technology and Industry for National Defense. "Others, one group will go to the test area to set up measurement and control points, the second group will go to the end of the runway to prepare to recover the test equipment, and the third group will debug the jammer..." Uh... I am always worried that you are under pressure, so I always tell me not to tell you until the project enters testing. Gong Guo, go to the back and unload the test trolley and push it over here, and then do a final check to make sure there is no fault! Xu Yang nodded decisively: Lets go. XCMG, I checked it and found no problems with the hardware or software. On the captured unmanned submarine, there were only two sets of GPS receiving modules including backup. One of them has been installed in the jammer and is used to translate and distribute signals. The one that can be used to test the jamming effect is Only one remains. However, he did inadvertently tell me before that he hopes this thing can be put into use before next spring. He also said that if used properly, it can have the effect of making a huge difference. ??Guo Lin wiped the sweat from his forehead: ?That becomes a one-time deal. But the testing process certainly cannot be done this way. Why dont I know this even once? ?So, Xu Yang rushed from the capital to Jinling. "In the past half month, he called me four times to check on my progress. Although he didn''t say much each time, it shouldn''t be so frequent." Four times? Hearing this answer, Xu Yang pouted slightly with a complicated attitude. ?Amidst the noise, Xu Yang picked up a large speaker from the car and gave instructions to the crowd in an orderly manner. ?The other party conveyed Chang Haonans message, saying that the military GPS receiving module they had been waiting for had been obtained and was on its way to the 14th Jinling Electronics Institute. He hoped that she could go there as soon as possible to wrap up the GPS jamming equipment project. So this test must be conducted in an extremely open area. ?She sniffed slightly, feeling a little uncomfortable from the sycamore catkins flying all over the sky just now. ?However, this guidance is not automatic driving. ?However, for Xu Yang, a native of Beijing, the climate here is not easy to adapt to. Before next spring? ?Originally, Guo Lin just asked casually, but this sudden time made him a little strange: Is there anything special about this time...or does Mr. Chang have any other plans? I dont know that While speaking, the car has been pushed to the starting point of the landing runway. Wait a moment, it will be "released" here and used to simulate the trajectory of a GPS-guided bomb on a flat surface. Path coordinate points 1-10 are set on the runway, 11-14 are set along the taxiway, and 16-20 enter the apron After all, the maneuverability of a four-wheeled car is much better than a bomb that can only rely on its wings, so in order to better reflect the interference effect, the path setting is relatively complicated. It is actually the process of an airplane landing on the runway and then taxiing back to the apron along the right taxiway. Okay, the setting is completed and ready to be released! ?Following Xu Yangs order, the tester turned on the power of the battery. Immediately afterwards, this slightly crude car drove forward unsteadily. ?Xu Yang and Guo Lin followed all the way behind, observing its trajectory. Because the GPS accuracy in the 1990s was still relatively limited, if you look closely, it is actually a bit unclear. ?However, generally speaking, we are still moving forward along the preset route. ?Ten minutes later, the two people and one car successfully arrived at the predetermined coordinate point, which was the location of the motorcade on the tarmac. The deviation is about 2 meters, which is also in line with the accuracy standard of military precision capture codes. Of course, in actual use, since the speed of guided weapons is much faster than this car, the computing power of the chip on the weapon cannot keep up with that of a laptop, and the accuracy of satellite positioning for altitude is very poor, so the hit accuracy generally cannot reach this level. ?Like satellite-guided bombs, the general accuracy is about 10-30 meters. ?Of course, it is still far smaller than the killing range. Send the car back and get ready to start the interference test! On the tarmac, the experimental team operating the jammer has moved the equipment to a position close to the runway and aimed the transmitting antenna on the side of the cylinder into mid-air. Since the receiving antennas of many GPS-guided weapons have directional capabilities, interference signals sent directly from the ground are likely to be filtered out and require a round of refraction through the ionosphere to simulate satellite signals sent from space. In order to achieve this requirement, the rated power of the entire jammer in working condition is very large, and the circuit design is also very clever. It was still completed by Chang Haonan himself. Lets set the interference method, take this runway as the axis, mirror all the GPS signals received within the range, and then re-send them..." Set an exemption threshold to prevent the false signals after processing from being too far apart and being discovered by the inertial navigation system ??Xu Yang said while setting the interference mode of the jammer on the computer. ?Of course, when this device is officially finalized, there will be several preset interference algorithms to choose from. After checking his settings one last time, Xu Yang stood up and took the walkie-talkie from Guo Lin. All attention, all attention, reporting preparations!. After a brief silence, a report came over the intercom that each group was ready. Four groups, test subjects can be released. After Xu Yang finished speaking, he put down the walkie-talkie, picked up the telescope handed over by the person next to him, and looked at the far end of the runway. ??The car drew a dragon while swaying forward. Looks no different from last time. A measurement and control group, the data is all normal. The first report came over the intercom. Because the interference setting is symmetrical along the runway, there will be no difference in the straight line driving in the first section. Soon, the car arrived at the entrance of the taxiway. According to the route setting, its front wheels deflected to the right. Everyone''s hearts instantly became tense. But soon, the new navigation signal told it that this was the wrong direction. ?Hence, the front wheel of the car turned around and turned to the "correct" left side. That is, the setting that is exactly the opposite of the last route. Measurement and control team 2, the target route has deviated. Measurement and control group three, the target is traveling along the left taxiway... Measurement and control group four, the target enters the left apron area... ?In Xu Yang''s telescope, he could also see that the car was firmly parked on the other side of the tarmac in an almost completely symmetrical position with them. Fuck, its amazing ??Guo Lin, who was also holding a telescope, murmured to himself: Doesnt this mean that the satellite positioning system is completely useless? Thats not the case. Xu Yang put the telescope aside and went to the computer next to him to check the jammer''s operation log: The effective range of a set of these things is only two to three kilometers in diameter. In order to ensure the interference power, the size and weight are very large, making it basically impossible to achieve full coverage of the battlefield. Furthermore, the opponent can also introduce more composite guidance on weapons, equipment or ammunition, especially terminal guidance mode, to deal with our interference. In short, there is absolutely no equipment that can solve all problems. You must not underestimate the enemy... Even though he said this, Xu Yang still showed a bit of joy on his face. Obviously, the log record is running very well. So she changed the subject: However, for some targets or areas that need key protection, it is enough. (End of this chapter) Chapter 578 Single crystal blade investment casting Chapter 578 Single crystal blade investment casting Equipment testing is a very serious matter, and it is certainly not a one-time deal. After several repeated tests, a series of things such as data analysis and performance calibration will be involved. After all the follow-up work is settled, it can be truly confirmed that the equipment has achieved the pre-designed specifications. Therefore, when Chang Haonan received the news that the GPS jamming equipment test was a complete success, it was already three days later. By this time, he had returned to Shengjing by special plane from Beijing and was planning the production of turbine disks and turbine blades at Liming Factory. As a result, just after the opening part of a seminar, he was called out by the confidential secretary, saying that there was an internal call. It took almost half an hour before I came back. "Mr. Chang, have you... changed your plans?" ?Zhong Shihong, who was sitting on the left side, came over and asked softly. Although he has been promoted to deputy general manager of Liming Factory, Zhong Shihong is still personally responsible for the specific production work of the Taihang project. For Chang Haonan today, it is indeed a small job. ??How can it be a trivial matter that can be asked by Mr. Chang in person during the mid-term meeting? Its just a joke. Chang Haonan is already familiar with this kind of scene. ?Although it took a little longer, the actual work time was less than a month. The reason why he had to ask in person was because it involved a matter on his mind that needed to be settled. By the way, I also hugged Mr. Changs thigh. As a business manager with a background as a senior technician, he knew that his administrative level and background were not enough. If he wanted to go further, he could only continue to stick to the technical route. Its just that the situation this time is rather special. A matter on his mind that he had been thinking about how to solve since his rebirth. After a brief interlude, the technical seminar that had just been interrupted naturally resumed. The scale of the GPS jammer project is not large. In addition, because each jammer requires a complete set of military GPS positioning modules, mass production is basically impossible. But in fact, Chang Haonan did not tell lies. The former nodded clearly and sat back down again. It''s just that I don''t agree with Chang Haonan''s "small project". Originally, the most troublesome part should be the GPS navigation module inside. ?The only core designers are him and Xu Yang, and from beginning to end, including the testing process, it only cost less than 500,000 yuan. In the end, the Self-Defense Force sent warmth directly, or two at a time, with almost no effort. Chang Haonan laughed dumbly when he saw Zhong Shihong worried that he would run away at any time: There has been no change. It was just a small project. You just informed me of the results. Dont worry. Sitting with him in the conference room were not only the Liming Factory technicians involved in the Taihang project, but also some of the engineers at the die forging press who were responsible for casting large-size parts of the movable beam. After all, both parts of the work essentially rely on the same technology. Investment casting. In fact, before Chang Haonan actually entered the military industry system, when he was inspected at Beijing Hang University, he once proposed that numerical calculation methods can be used to conduct quantitative simulation evaluations of continuous or semi-continuous casting processes (Chapter 53). At present, the formation process of castings can only be speculated based on experience and preliminary theory. In actual casting, repeated trials and analysis are required to determine the process plan. The purpose of numerical simulation is to accurately obtain reasonable control parameters at each stage of casting molding, including the calculation of temperature field, flow field, stress field and concentration field. Reduce the number of tests, eliminate casting defects, and even perform structural simulation to further control the performance of castings. But it can only be regarded as an idea. If it is really implemented, as a research object with multiple physical fields, changes in physical states, and the boundaries of the research system in the entire process flow are still in an unstable state, we cannot simply copy past experience. Although TORCH Multiphysics is a good enough platform, it still needs to be specially optimized for the casting process before it can be used. Mr. Chang, we can understand what you mean, but how can we accurately express the entire filling and solidification process of investment casting in mathematical form? Fu Jiangwei, chief engineer from Zhaodu Casting Co., Ltd., asked first. Zhaodu Casting was originally a state-owned enterprise affiliated to Zhaodu Iron and Steel Group. Later, during the economic system transition, it was transferred to the chief engineer of the original factory in the form of a share-holding contract. This privatization and restructuring was a win-win situation. Zhaodu Steel Group was able to travel lightly and concentrate on its core business. Zhaodu Casting also gradually grew and grew after getting rid of the restrictions of rules and regulations, and eventually became a first-class supplier for the die forging press project. the only private enterprise. This is not difficult. Chang Haonan pulled the blackboard next to the conference room, picked up the chalk, and then turned back and asked: I would like to ask, Mr. Fu should have some theoretical basis in mathematics, right? The reason why he asked this question is not because he has any prejudice. In fact, in this era, all walks of life are still in the stage where experience is king. Especially in traditional fields such as steel, many technicians are from wild backgrounds and have not received systematic higher education. If this is the case, it may be difficult to understand what Chang Haonan says next. Yes, I am a graduate of Jizhou Mechanical and Electrical College in 1980. Fu Jiangwei nodded and picked up the ballpoint pen next to him When the other party asked this, it was obvious that he wanted to show his strength. It is really not feasible to accurately calculate the entire investment casting process from a microscopic level. But we can change our thinking and divide the research object into a continuous medium composed of infinite fluid microclusters in space, and do not study the movement and interaction of individual molecules during the casting process. Because the macroscopic performance within the fluid is a spatial continuous function, analog research uses macroscopic continuous mathematical methods to study fluid motion. For example, when molten metal flows into the mold cavity, the fluid model is relatively accurately described as an incompressible Newtonian fluid. Therefore, the mold filling process can be described by the mass equation, momentum equation and energy equation, while the solidification process can be described by Approximately a single heat conduction..." ?Chang Haonan was dictating while writing furiously on the blackboard. ?This part of the content may be relatively basic for some people who have done projects with him before, but there are still some understanding barriers for others. All the way up to here. He said and pointed to the last equation on the blackboard: Up to this point, we can complete it with the tools we have on hand, but the later part, that is, the prediction of shrinkage and loosening of the keyhole in the casting, needs to be adjusted based on your experience and some experimental results. To determine the specific state of the shrinkage-porosity keyhole, my current idea is based on the pressure loss of dendrites in the feeding channel during the solidification process. At this point, he filled in a new series of formulas below. That is the parameter design and calibration. ?Chang Haonan threw the chalk tip back into the chalk box, then turned his seat and faced the people in front of him again: I plan to use two to three months to complete the model design of the entire investment casting filling and solidification process! (End of this chapter) Chapter 579 I still got F14 Chapter 579 I still got F14 After the seminar, Chang Haonan asked Zhong Shihong to take him to the newly established precision casting center established by Liming Group for the turbofan 10 project. As the main manufacturer of Chinese aerospace engines, the 410 factory in the past naturally had a casting section. However, both the technical level and the management model are no longer able to adapt to the production requirements of the new era. Not to mention the third-generation turbofan engine, which requires more than one level of higher manufacturing precision, even in the production of castings for the turbojet 14, the efficiency has gradually failed to keep up with other processes, becoming a shortcoming limiting aviation engine production. You must know that Turbojet 14 and its derivatives are the current cash cow of Liming Group. Under this situation, the newly appointed general manager Lin Zuoming simply decided to take advantage of the opportunity to develop the turbofan 10 to reorganize the entire casting section and transform it into a precision casting center integrating industry, academia and research. The university and Liao Provincial University have hired some researchers with reliable backgrounds. ?This era is the most prosperous time for university professors to engage in side jobs, but it is obvious that not everyone has the talent for business. At the end of the 1990s, China''s business community, of course the private business community, was still relatively wild and unruly. The mode of business war also tends to favor war rather than business. A shopping mall is like a battlefield in a literal sense. Equipment matters should still be left to people who specialize in hardware. Several of the people who just attended the seminar came from this background. Ma Liping said as he took out a technical manual from a net bag next to him and handed it to Chang Haonan: "It''s hard to say about the other older models, but the one you''re looking at is the latest model. The belt drive shaft and pull-out device have been replaced with new linear motors and vacuum pumps. I can''t say that in the whole world, at least in Asia. The best performing device. ?Chang Haonan shook his head helplessly, but at the same time he felt a little unexpected surprise: I didnt expect that the person who makes hardware is myself ??If the production equipment does not meet the requirements, it will be useless no matter how accurate the parameters are calculated. Ma Liping, director of the foundry center, stretched out his arm and pointed to several huge pieces of equipment not far away that were five or six meters high, and introduced them to Chang Haonan. ?Chang Haonan circled around the equipment and finally stopped in front of the equipment nameplate. Judging from the feedback from everyone at the scene, their theoretical foundation and understanding of modern technology are indeed much better than their counterparts who have been working on the front line of factory production for a long time. ?But since the other party had already said so, Chang Haonan still took it and turned it over. The information on the nameplate is relatively limited. Mr. Chang, you can look at this for more details. As far as the production process is concerned, equipment is the basis of all processes. He was previously the deputy dean of the Institute of Materials Forming and Performance Control of Liaoning University, but unlike his colleagues who came here just for part-time work, he was poached by Zhong Shihong with scientific research funding that was ten times higher than before. ?However, when it came to business, he did not spend too long on this technical manual: ?Then I discovered that the other partys linear motor was purchased directly through Torch-C.B. Ferrari. ?In this case, being able to find a stable and well-paid position in a large local central enterprise not far from home, even if subject to various restrictions on confidentiality, is definitely very attractive. Can this type of equipment meet the technical specifications for the production of single crystal turbine blades for third-generation engines? The model is exactly the same as that used on the MS45T three-axis machining center. ?Especially for some science and engineering scholars who have lived on campus for a long time, going out to do business is almost equivalent to giving money to others. Mr. Chang, these are the directional solidification furnaces we purchased from Shengjing Scientific Instrument Company in recent months to replace the extensive equipment in the past and are used for the production of turbine blades. In fact, it is enough for the latter to get the answer just now. After all, there are specialties in the profession. Although he specializes in more places, it is impossible to take over all the parts. Since there is no problem with the equipment, in the next period of time, we need to establish a model of the single crystal directional solidification process and then determine the process parameters. ?Chang Haonan put the manual back into the bag next to him and raised his head to look at the equipment in front of him. After a moment of silence, he discovered that several pieces of equipment further away were probably in production. Only this latest model, perhaps because it had just been put in place, had not started. Are you currently trial-producing turbine blades for Turbofan 10, or are you producing older models? "In the production of old models, the current production tasks are mainly turbofan 9 and turbojet 14. Compared with the past when it was just a casting section, because the number of blades that can be produced in each batch increases, the overall output has increased by about 3.5 times. " ?Although Ma Liping has not been in Liming Factory for a long time, he is obviously very familiar with business matters. Are you still producing turbofan 9? Chang Haonan was actually a little surprised when he heard what the other party said. ?Although he has always regarded Turbofan 9 as a verification project for technical and process testing of Turbofan 10, what can be verified on it has been verified long ago. Even Turbofan 9A has gone through the design finalization process and is ready for mass production. Logically speaking, the business should be returned to Hao Jing. After all, people almost rely on this model to live their lives. Few turbojet 8s cant be built every year. Well, we are responsible for the production of turbine discs, turbine blades and main shaft parts. Ma Liping had just entered the aviation industry system, and he didnt know much about what happened before. He just thought it was Chang Haonan who asked casually, raised his safety helmet, and then continued to answer: I heard that the order quantity for the turbofan 9A is very exaggerated. Haofa probably cannot produce enough production capacity at the moment, especially the hot-end components, so we can only entrust the production to us. Is there such a big demand for turbofan 9A? ?Chaochang Haonan, to some extent, single-handedly presided over the design and trial production of this model, but he still felt it was too outrageous. In his impression, the turbofan 9A model is only used on the JH-7A. But he had inspected the production line when he was modifying the electronic warfare aircraft before, and he was very clear about the production capacity of this aircraft. ?Even if we work three shifts all year round, thats still about twenty aircraft. This is the speed after the introduction of pulsating production lines. ??Its better not to let Haofas side burst into orders. Zhong Shihong, who had been silent just now, spoke at the right time: Last month, the second prototype of the JH-7A was equipped with a twin-engine turbofan 9A for flight testing. Because this model was considered for export under the name FBC1, some military attachs from potential users were invited to visit. " "Later, the aircraft was not sold, but the Persians felt that the power performance was good, so they went back and accepted the F14AMC improvement plan previously proposed by Shengfei, which was to replace the turbofan 9, and the 1493 radar, and then installed the open The one with the weapon interface..." Watching air shows and buying airplanes is an old Persian tradition. ??This is what Pahlavi did when he bought those F14s. However, Chang Haonan felt that Sheng Fei was playing a little too big this time: All 1493 radars must be installed? The 1493 is the radar planned to be installed on the domestically improved J-11. Technically, it is no different from the 1473 used in the J-10, but the caliber is increased by 200 mm, and accordingly the power and performance in all aspects have also been improved. It is basically one of the most powerful mechanical scanning radars on the surface. Export type, the working frequency band and target processing algorithm have been adjusted. Because they are both in Shengjing and have very close business contacts, Zhong Shihong also knows a lot about Sheng Fei''s situation: The main reason is that the Persians have basically no Phoenix missiles on hand, so they plan to let the improved F14 directly mount the R33. This requires an open weapon interface and a radar with as much power as possible. I fuck ?Chang Haonan expressed his mood at this time with a simple modal word. The R33 is a long-range anti-aircraft missile specially used by heavy interceptors in the Soviet era. ?? But the phased array radar on the MiG 31, which has shocking power and size, is absolutely impossible to defeat the F14. Then the export type of 1493 is indeed the only option left. In addition, I heard that in addition to the astonishing total amount of this upgrade transaction, the Persians also left 4 original F14s in good condition in our country for use as imaginary enemy training Even Chang Haonan felt that it took some time to accept such explosive news: Forget it, lets not talk about the aircraft business for now, lets continue talking about the current production situation... (End of this chapter) Chapter 580 Liquid metal cooling method Chapter 580 Liquid Metal Cooling Method After the brief interlude, everyone''s conversation returned to the equipment being produced in front of them. ? Ma Liping took Chang Haonan up the steps and came to a row of operating cabinets: In fact, after the performance parameters of the turbine blades of the Turbofan 10 were determined, we also tried to use new equipment to produce a batch of products. The other parts were fine. Although there were slight flaws, they could be recovered through subsequent finishing. "Only the final solidification process is very difficult to control. The single crystals produced have great defects at the crystal level, and even a large part of them are not single crystals directly. There is no way to remedy this later, so we have to temporarily stop work and wait. Production will resume after the process issues are resolved. While speaking, he took out a packaged turbine blade from the side and handed it to Chang Haonan: This is the most typical one among our previous batch of waste products. "Miscellaneous crystals, freckles, component segregation, excessive oxygen and nitrogen content, large primary dendrite spacing, crystal orientation deviating from the direction of stress, in short, single crystal defects written in textbooks are all collected on this product. Even if you want to deliberately produce such a waste product, it is difficult to do it. If this thing is not related to the Taihang Project and needs to be kept secret, I would like to take it out and show it to my students..." ?Chang Haonan took the blade and looked at it over and over. ?Of course, it is impossible to see anything with the naked eye. The differences in crystal morphology may not be fully visible even with an ordinary optical microscope. Special equipment is required to detect them. "The Turbofan 10 is still in the research and development stage, and everything related to the project is naturally top secret. However, after it is finalized, these waste products will not be so sensitive. Although it is still not possible to take them away directly, you can take out the photos of the crystal forms. He said as he returned the "perfect" waste product to Ma Liping: So, do you think this is a problem of adjusting the parameters of the solidification process? Ma Lipings expression was a bit complicated, so much so that Chang Haonan stood there and thought for a while after hearing it: If this is the case, even if we finally find a process that can stably form single crystals, the production efficiency will be very low? Its just that the size of the blades of turbofan 10 is indeed a bit too large and the shape is relatively complex, so we can only work slowly and carefully. This is also the main reason for the overall low production efficiency of the third-generation aeroengine The latter nodded: Ma Liping was stunned. After a while, he spoke with difficulty: If all liquids are used, then it cant be quenched? "ah?" "Well" Mr. Chang, the reason why this method is called high-speed solidification method is that it is very fast compared to the traditional power reduction method. Furthermore, the cooling effect of water cooling is too good for growing crystals. Crystals that are suddenly exposed to low temperatures will expand uncontrollably, and the crystal form cannot be guaranteed at all, and..." No, what I mean is that since the efficiency of cooling the cold end by thermal radiation is much lower than that of the water cooling plate, why not simply use liquid to cool the entire workpiece? Obviously, he thought Chang Haonan was dissatisfied with their production efficiency. Ma Liping wiped the sweat from his forehead: Of course yes. "When high-speed solidification is used to produce blades abroad, the pull-out speed must also be finely adjusted. Because the heat dissipation efficiency of the thermal radiation process cannot be controlled, the temperature gradient of the water-cooled part can only be reduced as much as possible to ensure a gradual temperature distribution throughout the entire process. More average. "But when the casting is pulled out of the insulation area, the heat dissipation gradually becomes mainly radiation, and the heat dissipation efficiency drops sharply, causing the temperature gradient at the solidification front to continue to decrease. The produced castings are prone to defects, and the larger the size of the single crystal , the defects become more obvious. ?However, the latter waved his hand: Of course it cannot be water. The difference between the freezing point and the boiling point of water is only 100C. The range is too narrow for cold-end temperature control and there is no way to operate it. The solidification technology used in this equipment is the currently popular high-speed solidification method. The temperature gradient is controlled through the insulation heating zone in the furnace and the water-cooling tray at the bottom of the casting and radiation heat dissipation. Before he finished speaking, he was interrupted by Chang Haonan who almost couldn''t hold himself any longer: "What I mean is to use a liquid with a large thermal conductivity, high boiling point, low freezing point, and large heat capacity. Directly immerse the roots of the extracted blades in it and use heat conduction for enhanced cooling. In this way, the temperature gradient of the entire workpiece can be large and high. Stable, the crystallization speed and crystal quality can also be guaranteed at the same time. It has a high boiling point, a low freezing point, and a large heat capacity ?Ma Liping looked at the sky and thought for a while. He originally wanted to know where there could be such a magical thing. But I soon realized that I was wrong. There is a large class of materials that meet this requirement, but they are not usually considered liquids. Then its just...liquid metal? Chang Haonan nodded: From my initial thought, it is best to use aluminum or tin. As you said, the freezing point cannot be too low, otherwise a sudden strong cold will have an adverse effect on crystal growth. This time, Ma Liping did not respond immediately. Instead, he paced back and forth in front of the cabinet, obviously thinking about the feasibility of this technical route. Mr. Chang, if liquid metal is used, there will be more operable variables that need to be controlled, especially when the cooling rate is increased. A few minutes later, he stopped again and looked at Chang Haonan: "At least we have to consider the temperature change of the liquid metal itself after it comes into contact with the crystal. Moreover, even if the thermal conductivity is relatively large, due to insufficient fluidity, a new temperature field will be formed inside the liquid, and this temperature field must be controlled at the same time. , we should also consider that our heating method itself is also uneven..." Don''t even start calculating, even just thinking about it makes Ma Liping feel dizzy. What if we use a uniform heating method, such as microwave heating? Zhong Shihong, who had been unable to speak next to him, suddenly suggested: This can reduce at least one variable Before he finished speaking, he saw two people opposite him looking at him with complicated eyes. Youwant touse microwaveto heat metal? ?Ma Liping''s voice was a bit unbelievable. ?Just like he did when he faced Chang Haonan. It''s just that before he doubted whether his level was not good enough, now he doubts Zhong Shihong''s intelligence... ? Microwaves have a skin effect on metals and can only penetrate a very shallow metal surface layer, and cannot heat the entire metal from the inside like boiling water. "never mind" Zhong Shihong shut up immediately when he realized that he had made a bad idea. In short, if liquid metal is introduced, the control logic will be extremely complicated, including our next process optimization. Every time one more parameter is introduced, the difficulty of optimization will increase exponentially..." Can we...really get results in a few months? When the complexity of the model is large enough, it is difficult to calculate the results even with a computer. ?Especially at this moment, Chinas supercomputing is still far behind the international leading level in terms of hard indicators. Is this... ?Chang Haonan pushed the helmet on his head: I cant say anything about others, but since Im in charge, it shouldnt be a big problem (End of this chapter) Chapter 581 What a huge missile! (Ask for a monthly ticket at the beginning of the month) Chapter 581 What a big missile! (Please ask for a monthly pass at the beginning of the month~) ?After reaching agreement on the technical route with Ma Liping, Chang Haonan led the entire casting research team into a new round of technology research and development. On the other hand, equipment problems must also be solved simultaneously. The reason why the former has been struggling for so long just now is precisely for this reason. After all, it was a new device that I had just bought, so it was a bit of a waste to just replace it. ?However, the two people analyzed it later and found that although the two processes are very different in control methods, the basic principles are very close, so the difference in hardware is not that big. It is completely possible to make in-situ improvements based on the original equipment. Ma Liping finally breathed a sigh of relief. ?As the director of this precision casting center, although he does not carry financial KPIs, as the head of a research institution, he must always be careful with calculations. Therefore, Chang Haonan contacted Shengjing Scientific Instrument Company, which is also a subsidiary of the Chinese Academy of Sciences, through the Torch Group, and asked the other party to improve the solidification equipment of the directional solidification furnace as required and change the original high-speed solidification process to one that he had registered. Patented liquid metal cooling process. So, after determining the specific research plan for manufacturing single-crystal turbine blades and arranging the work, he himself was not as busy as he was in the first few days. ?Such a God-given opportunity, I must try to invite it. Even if you cant invite him, you can at least show respect to the boss. On the other hand, because he had to adjust parameters based on the data from the casting process and then feed it back to the production side for new process testing, he could not temporarily leave Shengjing as usual to focus on other projects. ?Of course, the patent licensing fees for these things that Liming Factory has on hand, as well as the subsequent new equipment purchased, will definitely be waived. In short, I am free for the first time in history. For example, 112 factories and 601 institutes. Compared with the high-speed solidification method in which the cold end is in a complete vacuum state, the new process can control the temperature field of the cold end far more accurately than before, and the specific heat capacity of both liquid tin and liquid aluminum is quite huge, and a more effective induction heating power supply is required. , stirring system, temperature sensor... But if there are other users, then the two companies will add two to one and make five, and the profits will be divided equally. ?However, Shengjing can be regarded as the place where he started, so there are some places worth visiting. ?In addition, software upgrades still require hardware-level support. Chang Haonan is not a person who likes ostentation, so he refuses most of the invitations that are not nutritious and just invite him to take a look or give a lecture. Have to wait. It can be regarded as a cooperation that is not very eye-catching, but has far-reaching impact. As for the investment casting process model design mentioned above, Chang Haonan has already set up the framework, but still needs enough data to adjust various parameters. After all, Shengjing is the cradle of China''s military industry in various senses, especially the aviation industry. There are a large number of research institutes and enterprises under the Committee of Science and Industry. The meaning must be in place. Its just that this process definitely requires a process. Fortunately, China''s industrial level has been pushed forward several times by Chang Haonan in the past two years. It has indeed made great progress. Most parts can be obtained domestically, and the more sophisticated ones such as sensors are not the same as those in Europe. With the cooperative relationship, it is not difficult to bypass the technical blockade that has basically existed in name only to buy one with higher accuracy. ?Of course, considering Chang Haonan''s current status, the so-called "leisure" can only be relative. ?Such a great **** is right next to him, and he doesn''t seem to be very busy. First of all, he has quite a few acquaintances in these two places, and secondly... He also wanted to see with his own eyes what the Persian F14 was like It is different from the previous F4EC project. Since the F14 has too many places to move, and the number of aircraft that need to be upgraded is relatively small, only 40, at least a considerable part of the life extension upgrade project needs to be carried out in the 112 factory. Not in Persia. To this end, Shengjing Aircraft Industry Group also set aside a space in the final assembly workshop of the old model J-8 to park the three aircraft that were first sent to China. For Factory 112, Chang Haonan is already a regular visitor, so he doesnt make any grand arrangements. ??Its just that the factory director and secretary took the leadership team to the factory gate to greet them in person. Then He Ming, an old acquaintance who has now been promoted to chief engineer of Shengfei Group, took Chang Haonan to change into work clothes and went to the assembly workshop that the latter was all too familiar with. Compared with the J-11, although the production of the J-8 series now uses some new technologies such as digital drawings, it does not introduce the pulsating production ideas of parallel operations and collaborative assembly, and still uses the traditional final assembly method. ?Although it is slower, it is actually beneficial at this time. Since there are almost no requirements for site layout, it is enough to have a place to park the aircraft and assemble the frame. It is easy to divert part of the area for other uses. These are the three planes sent by the Persians. ?He Ming took Chang Haonan past two J-8B/Ds that were in different stages of final assembly. This is a previous order placed by the Air Force and has not yet been fully delivered. When they started cutting out materials for production, they were still the most cutting-edge domestically produced fighters in China. Who would have thought that just two years later, Xiao Tiantian would have become Mrs. Niu.??? The two of them came to the other side of the factory building that was separated by a fence. ?There are three F14As in desert camouflage parked here. ?However, only one of them is complete, and the other two have had their iconic swept wings and vertical tail removed. "This complete aircraft is one of the four that Persia sent to us directly in exchange for the contract. It means that it will be slightly overhauled and then handed over to the Blue Army Brigade in Dingxin to form a force similar to the 65th Squadron of the US Army. Highly simulated imaginary enemy troops. ?He Ming walked to the side of the plane and introduced it to Chang Haonan. ?The latter took two steps forward, stretched out his hand and touched the F14, which was still painted with the Persian Air Force emblem, especially the variable wing part. Due to various reasons, China Aviation Industry completely missed the variable sweep wing trend from the 1960s to the 1980s. There were many models that were originally planned to adopt this configuration, but were either ultimately abandoned due to technical or cost issues, or the entire project simply died halfway. ??Although in hindsight, this can''t be considered a bad thing. But purely from the perspective of hobbies and feelings, it is still a bit of a pity. ?In his last life, Chang Haonan was not even able to see an aircraft with a variable sweep wing structure up close. Now it can be considered that a small wish has been fulfilled. This is a good idea, but its a pity that the F14 in the US military is about to be retired. ?Chang Haonan''s tone was slightly regretful. ??Its not because of the retirement of the F14 itself, but because we finally got a few U.S. military active-duty aircraft that can fly. As a result, the actual combat value of the training was greatly reduced. ?He Mings mentality is much better: There is no way. The reliability and dead weight issues of the variable sweep wing were brought up in the mothers womb, and the F14s dispatch on the aircraft carrier deck is not as convenient as the F18s, and the actual dispatch rate is very different. Looking on the bright side, everything is difficult at the beginning. We may be able to get other models in the future. He was just saying it casually now, but he accidentally reminded Chang Haonan. ?If I remember correctly, Venezuela should indeed have a batch of F16A/B fighter jets from the early 1980s... ?However, these are all things for later. After seeing the complete aircraft that had been assembled, He Ming took Chang Haonan to a place slightly closer to the door. ?The other two planes have been dismantled into pieces, and there are still many technicians busy around. A considerable number of them are obviously not Chinese. Are those Persians? ?Chang Haonan raised his hand to signal. ?There is almost nothing in this workshop, even if there are foreigners, they are nothing. No, its the Russians from the Pennant Design Bureau who came over to be responsible for integrating the R33 missiles into those aircraft. They have developed a newer generation of R37 ultra-long-range air-to-air ammunition in the past two years, so they dont care much about R33 and just brought a few sample rounds over. As he spoke, He Ming led Chang Haonan around the two planes and came to the other side of the factory. ?On the special bracket here are two extremely large missiles in terms of air-to-air weapons. Chang Haonan made a rough estimate and was very sure that this thing was thicker than his waist... How heavy is this thing He asked in a low voice to He Ming next to him. The bomb itself weighs half a ton, has a charge of about 40 kilograms, and has a theoretical range of 300 kilometers, but it needs to be matched with the MiG-31 radar to achieve it..." ?However, Chang Haonan didn''t pay attention to the second half of He Ming''s words. After thinking for a moment, he raised his head again: I think this kind of thing should have potential in other aspects "other aspects?" ?He Ming didn''t react much for a while. "When we were working on Thunderbolt 11 before, I suggested that the Second Bureau of Electrical and Mechanical Engineering develop an anti-radiation missile based on that. However, I later found that the size was too small, and the range and power were not sufficient whether it was for air or ground purposes. Chang Haonan pointed at the two R33s in front of him: If there was something of this size, it would be much more convenient... (End of this chapter) Chapter 582 Innate anti-radiation holy body Chapter 582 Innate anti-radiation holy body ??When we were talking about Project 11 before, China had already purchased a batch of Kh31 series supersonic air-to-surface missiles for trial use in that package agreement. ??There are both anti-ship models and anti-radiation models. ?If nothing else happens, it will soon follow the same example as the previous generation, further introducing technical data, localizing it under the name of YJ-91, and becoming one of the most important off-zone strike weapons of the Chinese Air Force. In fact, in terms of dealing with ground radars and naval ships, this weapon, which weighs about 650 kilograms and has a warhead of more than 100 kilograms, is completely sufficient. Even if the target is withdrawn in time and has already run away when the missile hits, it may still be affected by the shock wave or fragments of the huge warhead. After all, radar is a relatively fragile device, especially if the large antenna part is slightly damaged, it will often cause the entire system to become inoperable, and it will need to be repaired before it can be put back into use. But with every gain there must be a loss. The design purpose of Kh31 determines that it does not need to be very maneuverable, as long as it can hit the target at a sufficient speed. On the other hand, Kh31 has another hidden danger. "However, it was later discovered that the actual effective attack distance of medium-range missiles is generally only 30-40 kilometers. It is basically impossible to touch the early warning aircraft on the opposite side, and it has no practical value. So later, the seeker of the R77-1 and of course the PL12 was simply removed. With this function, the power and space are concentrated on the active seeker. ?Furthermore, even if it is not targeting an early warning aircraft, the range and speed of the R33 are no worse than the Kh31. ?However, the latter''s need for such a large warhead is mainly due to consideration of anti-ship requirements. You must know that the JH-7 that Chang Haonan modified before has the ability to conduct passive search along the radar signal when paired with the air-to-air 100 pod. ?The only disadvantage is its power. In 1995, the American McDonnell Douglas Company received an order to develop a target missile that simulated Kh31. Well, the idea of ????R77 is good, but it should not be placed on a medium-range bullet. ??Then they went directly to the Star Design Bureau to purchase a large number of Kh31s without warheads and seekers at a low price, changed the paint and renamed them MA31, and made a lot of money when they resold them... Hearing Chang Haonans thoughts, He Ming lowered his head and thought for a moment, then nodded: "When you said that, I suddenly remembered that when I went to Luoyi to inspect the Pili 12 air-to-air missile some time ago, Chief Engineer Dong Bingyin there seemed to have mentioned that the original seeker of the R77 had a passive integrated Radar guidance function is tested. Should be very happy. If you just hit ordinary ground or air targets, 40kg is almost enough... ??It is also a "new" weapon that has almost never been seen before. But in short, although the most critical seeker data is missing, the ballistic characteristics and radar target characteristics of the Kh31 have definitely been understood. It can be called an innate anti-radiation holy body. If these two are combined, the opponent''s early warning aircraft... ?Although the R33 is relatively clumsy among air-to-air missiles, it is still stronger than ordinary aircraft, especially large aircraft. If you replace it with an anti-radiation antenna... But in actual combat, there are rarely such stubborn enemies, so we basically have to fight them in half, or even one-third. In the future, this electronic warfare platform will definitely be migrated to the J-11, which will also have the ability to launch air-to-air missiles at high-altitude supersonic speeds. From this perspective, McDonnell Douglas acquisition by Boeing is definitely self-inflicted ?The calibrated range of air-to-air bombs is an ideal indicator when the carrier aircraft and the target are flying at supersonic speeds at high altitudes. Chang Haonan walked around the two R33s: The Russians are still in a chaotic stage, otherwise they would have already thought of integrating active and passive composite seekers into bombs like R33 and R37. He Ming next to him had already begun to think about how to execute it. He knew that Chang Haonan already had two major projects on hand, and was also responsible for the operation of the Torch Group. In addition, the Equipment Industry Department, a slightly strange department, actually had many things under the control of the other party, and it was impossible to do everything himself. ?Thinking about it, only the Luoyi Air-to-Air Missile Research Institute, which has just put the Pili 12 on the right track, is more reliable. ?So he stopped and asked Chang Haonan, who was circling the missile: In this case, then I will contact Luoyi 014 Center and let them think of a solution? Anyway, I dont take R33 seriously from the side of the pennant. Although the guidance method of this model is a bit behind, the missile itself is still good, and the range is far enough. We can just change the seeker when the time comes. ?At the moment, although the situation in Da Mao is indeed better than in the original timeline, at least the core industrial sector has begun to operate again. However, the overall environment of the country is so virtuous, and the resources available are still very limited. ?A penny is too much for a hero, so now the main task is still to finish the projects that were started on the eve of the disintegration but have not yet had time to produce results. However, perhaps because of the serious stimulation from China (or Chang Haonan), compared to the secretiveness in the previous life, their thinking now is in line with the Sukhoi Group that was the first to figure it out. - The technology at the turn of the 1980s and 1990s will only become less and less valuable if you hold it in your hands. Ye Dionysian is lucky enough not to hold back. It is definitely not possible. It is better to get rid of the funds quickly and invest in business reconstruction or new project above. ?In this current situation, whoever can recover from the chaos earlier has the possibility of beating his competitors to death and regaining their health. ?Times have changed, and we are now an independent group company, so there is no need to talk about the martial ethics of the past. In the final analysis, it is actually similar to Europes attitude towards China. Only when you have the strength and confidence can you have the capital to trade on equal terms with others. Chang Haonan on the other side of the missile rack thought for a while and felt that what He Ming said was indeed the best solution. For these projects that are not very difficult, it is indeed the most efficient way for him to propose ideas and technical routes, and then let others implement them. ??This is also the goal he set from the beginning. So he nodded: Thats fine, just leave it to Luo ?But the words stopped abruptly in the middle of the sentence. ?He Ming looked up at Chang Haonan with some curiosity. The latter paused for a moment, the expression on his face changed like a lantern, and then the conversation changed: Forget it, the 014 Center has too many projects on hand now, and the unit establishment cannot be changed casually. There are only so many people, and if we add additional responsibilities at the last minute... Im afraid they will be under too much pressure. In fact, at that moment, Chang Haonan was thinking of Yang Baoshu, whom he had met once when Rongfei participated in the J-10 test last year. Due to overwork and illness, he was already terminally ill at that time, but he still persisted on the front line for several months. It was not until the flood threat faced by prototype 1001 subsided that he handed over the task to his deputy Luo Hairong, and even waited until after the first flight. , before leaving his job and being hospitalized for recuperation. ?However, the condition is too serious and it is too late to save her... This has also become a regret for Chang Haonan. If he remembers correctly, Dong Bingyin, the current chief designer of the 014 Center and the chief designer of the Pili 12 missile, also collapsed at his job due to overwork a few years later. Fortunately, Mr. Dongs problem seems to be a bad heart. There is still a chance to save it. ??Chang Haonan''s sudden change of heart made He Ming a little unable to react. He was stunned for a while before speaking: ThenMr. Chang, what you mean is The former had an alternative just now: The Second Bureau of Electromechanical and Electrical Engineering, oh, it should be called the Aerospace Technology Research Institute after the reorganization. There should be no new missile models under development after the Thunderbolt 11 is finalized. You can contact them. ?Although He Ming still wondered what Chang Haonans purpose was, he finally decided to give up thinking Since it is Mr. Changs decision, it must have deep meaning... Its okay if I contact you. He hesitated again: But Mr. Chang, after all, they are a unit under the aerospace technology group after the reorganization. As a person from the aviation industry system, I just want to interfere in other peoples business with empty words, isnt it..." "Um" ?Chang Haonan also knew that what He Ming said made sense. Normally, it doesn''t really matter, but right now, it is the most sensitive time internally for the five major military industrial corporations to be broken up and reorganized. Hurryly meddling in other people''s affairs may indeed affect unity if not done properly. ?But its not a big problem. He has connections. In this way, you sort out the situation between the Pennant Design Bureau and R33, and send a letter directly to a person over there named Guo Liqiang. He was previously the deputy chief designer of the Thunderbolt 11 missile, and he has some interactions with me. ?He Ming felt relieved and sighed secretly. ??As expected of Mr. Chang, from the time he first participated in the 83rd Project to the present, it has taken two years, and his contacts have spread throughout the entire Commission of Science, Technology and Industry for National Defense system. ?Think about yourself again, after working for twenty years, you havent accumulated such a strong relationship. I suddenly felt a little emo. ?However, this mood did not last long and was interrupted by Chang Haonan''s voice: Lets go over there and see the situation of Project No. 11. If there is really the idea of ??using ultra-long-range air-to-air bombs, then the aircraft level must also take corresponding actions. (End of this chapter) Chapter 583 In three words, let the French spend 1.8 billion for me Chapter 583: Three sentences, let the French spend 1.8 billion for me ??While Chang Haonan is based in Shengjing to solve the precision casting problems encountered in the two projects at hand, his other layouts are also continuing to advance in different ways... A few days later, Bingcheng was 500 kilometers away from Shengjing. ?An A340 passenger plane painted with Air France''s iconic three-color EU paint slowly landed on the runway of Yanjiagang Airport. In 1998, the domestic aviation business was not very busy. Even cities like Ice City, located in the center of the region, were far from the continuous flights that would be achieved in later generations. ?Especially in the early morning or after dark, the tarmac can even look a bit deserted. ?Furthermore, this big guy equipped with four engines is rarely seen here. ?In fact, it is not difficult to judge from the name that Yanjiagang Airport does not have customs and border inspection facilities. It stands to reason that it cannot handle international flights and can only fly domestic routes. ?However, this A340 is obviously not an ordinary commercial flight. ?As it slowly drove from the taxiway onto the apron, a convoy of several minibuses and cars of different models drove over from a short distance away. However, at the moment, the country''s tendency in the automobile industry is that the "three big and three small" companies are enough. Although there are already more than the six companies that have started building cars, Bingfei, who has little political resources, wants to start from The transition from mini-cars to the larger passenger car market is not easy. ?After the leaders on both sides said hello, other people behind them also exchanged ritual greetings for a while. ??And although Chang Haonan has never directly participated in any of Bingfei''s projects, Cui Wenxue is still keenly aware that the other party is still very concerned about his situation. Nice to meet you too, Mr. Cui, happy working with you. This has always been a worry for Cui Wenxue. ?However, the temperature in Paris is actually not optimistic at this time of year, so these preparations are useless. A few minutes later, the ramp car docked at the aircraft door, and a group of foreigners in suits filed out and descended to the ground along the steps. Even so, standing on the tarmac chatting all the time is not a good idea, so after a brief conversation, Cui Wenxu still motioned to his staff to take people to the car. Hello, Mr. Flamel, welcome to lead your team to Ice City. ?Cui Wenxue is slightly shorter than Le Maire, but he is no less imposing: You cant let your distinguished guests travel on Songhuajiang buns. Mr. Le Maire, we have already read the cooperation invitation and related materials you sent. We can start discussing the specific details when we arrive. "Wish we can co-operate well." After all, Bingfei Group and Cui Wenxu himself still have to rely on each other for their status. The leader shook hands with a Chinese man who had just gotten out of the back seat of the car and was approaching. According to some rumors, the latter has a considerable say in the newly established Equipment Industry Department. The April morning in Bingcheng was still a little cool. Cui Wenxu even had some cotton-padded clothes prepared to prevent these Europeans from coming from afar from getting cold and spoiling the already secure cooperation. This is not urgent ?It is depressing to say that although Bingfei Automobile has developed prosperously under his leadership, when there is an occasion, Bingfei still has to use the car he bought from others to do things. ?This is a project that Mr. Chang has personally taken care of and even given him tips on. It must not be messed up. The only thing he can count on now is the big tree Chang Haonan. ? Flamel, uncharacteristically, did not continue: This is my first time coming to China. At least on the way, Id better not talk about work yet In fact, in addition to being an aircraft designer, he is also a history buff. ?Before coming to China this time, Le Maire had learned a lot about the situation with friends who participated in last year''s negotiations, especially the part where the European delegation was taken out to visit the monuments. He felt that he should have a chance this time. ?However, it is obvious that the French clearly lack the concept of China - ?Last time, Le Maires colleagues went to Haojing, which is about 2,000 kilometers away from Bingcheng. ? And France spans only 1,000 kilometers from east to west and from north to south... ?But Cui Wenxue didn''t know this. He just thought it was the first time for a foreigner to come to China and wanted to see the street scene, so he asked the driver to take the convoy around for a few times. As a result, the more Flamel looked at it along the way, the more he felt that something was not right. Why does it feel like going home... Is this your art gallery here? ?He asked, pointing to a splendid palace-like building under the rising sun. Cui Wenxin said that I didnt even know we had an art museum here. Curiously, he bent down and glanced out the window, only to realize that he was pointing at Bingcheng Pharmaceutical Factory No. 6... "Ah...no, this is our pharmaceutical factory, which produces medicines." ? Flamel opened his mouth, but in the end nothing came out. Cui Wenxue next to him was a little worried that Bingcheng''s relatively chaotic urban planning and the relatively poor public security and sanitation conditions in the old city would embarrass China, but seeing the French guy next to him acting like a countryman entering the city, it didn''t matter. Worried... Chinese people in this era generally wear several layers of filters when it comes to foreign situations. In fact, for Le Maire, the new Paris flag is white. chaos? Chaos is the only way to go! Along the way, Flamel quickly lost interest. ??However, no matter how boring my request was, I couldn''t give in, so I had no choice but to force myself all the way to the Bingfei Group. Then, the two sides came to the conference room that had been prepared long ago, set up their positions, and sat down separately. The cooperation intention between the two parties has been determined during the previous contact process, so there is basically no need to test this one today. Cui After a brief opening remarks, Flamel wanted to speak, but as soon as he uttered a syllable, he was overtaken by the other party. Mr. Le Maire, since we want to cooperate, we must first show some sincerity. Cui Wenxue said as he dug out some information he had received before, as well as some technical documents related to Zhi-9: According to the calculations of our technical staff, there are some systemic flaws in your design method of the helicopter transmission system. "Originally, this problem was discovered by us on the Z-9, which was your AS365 helicopter that was introduced before. It was just treated as an example at first, so it was solved without taking it seriously. But after seeing After you recently sent us the information, we performed back calculations based on the above performance calibration and found that similar defects still exist, but the extent of their manifestations is different. As a partner, I think we should let you know about this situation as early as possible and make corrections in time to avoid causing greater losses. Three sentences, which directly confused the French delegation opposite. You call this showing sincerity? Why do I feel like Im showing off? Yes, our products are defective and we know it. ??But to be brought up in such a brazen manner is a bit of a slap in the face. ?Also, what does "it''s solved easily without taking it too seriously"? Do you know that we did not solve this problem until the third improved version of Dolphin? Be a human being! Do you still want us to express our gratitude? impossible! ?However, having said that, there is nothing the French can do to refute. The problem with dolphins exists. As for whether NH90 has the same problem... Originally they thought it didnt exist. But after the Chinese people said this, they are not so sure now... After all, the first two prototypes of this aircraft had already been tested and had a lot of problems. ?As a result, the atmosphere was so deadlocked for a while. Mr. Flamel, I know you are in a hurry, but please dont be anxious yet. Cui Wenxue, who had the head start, took out the cooperation plan that he had already prepared and handed it over in one portion per person: We have prepared two ways of cooperation. Which one do you like more? We will discuss it in detail based on that one. Flamel''s momentum has now weakened by half. In order to avoid being unable to get off the stage, he quickly distributed the plan to other people in the same party, and then opened the one in front of him. ?This one is more of a supply contract than a cooperation plan. ? Bingcheng Aircraft Industry Group has promised to help Eurocopter Group design two new sets of technical solutions for AS365N2 and NH90 respectively, including the transmission system, front fuselage, main rotor and tail rotor, with a quotation of US$1.8 billion. ?However, if euros enter circulation during the implementation of this project, the equivalent amount of euros can be used for payment. Mr. Cui, this quotation is really outrageous... The people of Le Maire were all stupid: Your country introduced all the technology of the Super Hornet helicopter that year, plus 14 complete aircraft, and the total cost was less than 180 million US dollars..." Eurocopter is not short of the US$1.8 billion. The problem is that NH90 is a military project, and other places can turn a blind eye, but the expenditure must be audited. When the Ministry of National Defense comes to check the accounts, they find that we designed a military helicopter, but you clearly gave 1.8 billion to the Chinese... Im afraid I cant get rid of the communist hat. After all, that was twenty years ago, and the U.S. dollar back then and the U.S. dollar now are obviously not the same thing Cui Wenxues rebuttal was clear and logical: Besides, dont you know the specific situation of the Super Hornet better than I do? Your countrys own aviation force refused to use it. If our country hadnt been in urgent need of a medium-sized helicopter to perform ocean missions, that model wouldnt even be worth 180 million... Once the fire came down, a dozen French people on the opposite side remained silent. After all, they really have no control over this matter. At that time, to be honest, it was because China did not know much about the business and used some tricks to sell the aircraft. Flamel, who was a little dizzy, just felt that something was not right. From the moment they entered this conference room today, the situation developed in a direction that was completely uncontrollable for them... (End of this chapter) Chapter 584 Mr. Chang has clever tricks (please give me a monthly ticket) Chapter 584 Mr. Changs clever trick (please give me a monthly vote~) Faced with the current unfavorable situation, the Frenchs first reaction was naturally to resort to procrastination. As the saying goes, one can make great progress, then it will weaken, and three times it will be exhausted. This is not only true for war, but also for negotiation. From Le Maires perspective, since Cui Wenxue chose to launch attacks at the very beginning of the conversation without even giving them a chance to speak, he obviously wanted to use three axes to achieve a quick victory. ?Of course, at the beginning, it was suppressed as it was just now, and I couldn''t even speak for a while. If I suffered a small loss, I would definitely not be able to escape. But after all, no matter what Eurocopter says, it still has a lot of chips in its hands. ??As long as we can stabilize our position and drag the situation into the later stages, it may not be impossible to regain some of the situation. ?After thinking about this, Flamel calmed down a little and began to talk about him in circles, bypassing the core topic. Cui Wenxue, who was opposite, was not in a hurry. He just calmly opened the black notebook in front of him, pressed the ballpoint pen, and pretended to be listening and taking notes. ?Looking at the French people getting up and leaving the negotiation site one after another, the latter leaned his upper body on the back of the seat, shook his head slightly, and whispered to himself at the same time: Its so hard to imagine playing war games with us Chinese people ?However, the people on the Bingfei Group side can see it clearly For most people, when writing something, their thinking ability will be affected to some extent. Liu Hongbo speaks very nicely. He never expected that Chang Haonan would appear in a role here. ?However, when Cui Wenxue needed to speak, he was still able to answer with ease and fluently. Even in turn, a lot of interesting content was analyzed from the lines of the other party''s temptation. ?? He found that the other party''s level of writing nonsense literature was higher than his own. If he continued like this, he would only lose his armor completely. So the two sides agreed to restart negotiations after 20 minutes. Two days ago, when Mr. Chang told me about this project, he planned a negotiation model for the French, and he also accurately predicted the reaction of the other party. During the process, the technical representative from the French side, Kurt Jean Pierre, also tried to make some insinuations to see if he could use words to get out some details about the transmission system problem of the Dolphin helicopter. You see, these are all correct guesses. Although some of them are not completely correct, they can also be used as references..." ?It seems that Cui Wenxu not only does not have two interests, but also holds a strategy book... The result was that as time passed little by little, the Chinese side did not lose momentum as the other side imagined. Instead, the French side was a little confused first. Thats what Mr. Cui has prepared... ?Seeing that they could not open a breakthrough for a while, the Le Maire people felt a little numb. But after the three axes at the beginning, he did not make any moves at will. Instead, he steadily put pressure on the opponent and continued to accumulate advantages. This is natural. As a general manager with a background in car manufacturing, he actually doesnt understand many technical issues in the helicopter field. Hearing the name of his junior brother and boss, Liu Hongbo looked a little surprised. ?Cui Wenxue was not prepared to hide anything. ??The notebook in front of Cui Wenxue was already full of writing. He just took a ballpoint pen and stroked it in the void, pretending to be writing. ?With this coming and going, the pressure on me became even stronger. Its like leading the opponent by the nose. ?No wonder the other partys game experience is extremely poor. In fact, according to the serious ranking, he should be ranked third or fourth in the Bingfei negotiation team. ?It is true that one can make a big effort and then weaken it three times, but the premise is that the opponent must keep punching in the air in order to achieve the purpose of consuming the opponent''s military strength. Faced with such a reasonable request, Cui Wenxue naturally would not refuse. ?The technically savvy Guo Jingshan has been sitting in the inconspicuous third seat and has never spoken a word. ??Sitting next to Cui Wenxue today is to interfere with the other party''s judgment in a sense. ?However, Cui Wenxue leaned his head slightly and whispered: Its not that Im well prepared, its that you are always well prepared Hearing the other partys compliments, Cui Wenxue waved his hands and smiled mysteriously, then turned the notebook in front of him to face the other party: Ashamed, ashamed, many of the other partys reactions have been predicted, just respond as written in the book. ?So we had to hang up the no-war sign and expressed the hope that the meeting could be adjourned midway. At this time, Liu Hongbo, who was sitting second to Cui Wenxues left hand, turned around and gave a thumbs up: ?The Frenchman across from him couldn''t tell any clues across the large conference table, and just thought he could multi-task. "Clam?" Mr. Cui, you are awesome. ??However, Cui Wenxu''s response was watertight, and he didn''t reveal anything useful. ?Liu Hongbo took a closer look and found that the notebook was densely filled with preset questions and answers, many of which were the words the other party had just used to dig holes. In this case, of course, the one who will be consumed will not be our own side. From the source, there is no possibility of saying "Tululuzui". There are not many people who have this kind of ability. After all, Liu Hongbo is different from others. He is from the Torch Group, not Bingfei, and he will know what is going on sooner or later. How about taking the opportunity to say a few nice words about Chang Haonan. If it reaches the other party''s ears, it will be a bonus. "this" Liu Hongbo didnt know what to say for a while. ?Let''s just praise Chang Haonan on this occasion. It''s a bit of a shameless flattery to the boss, which is not appropriate. But other than being awesome, I really have no other ideas. He suddenly remembered a plot in the Romance of the Three Kingdoms - when your protagonist enters Wu, you should receive these three tips. There are three clever ideas in the bag, follow them one by one... Just when his thoughts began to let go, Cui Wenxue continued to add: In fact, Mr. Chang even thought of calling a timeout among the French, and specially arranged for an off-game call..." Liu Hongbo shook his head helplessly and leaned back in his chair. Yes, its a great plan. He originally thought that there was a big gap between himself and his junior brother in terms of research level. But now it seems that the research level may be the part where the gap between them is relatively small... At the same time, there was an entrance to a lounge arranged for the French delegation. ??A dozen people from Eurocopter and the Aerospace Industry Association are getting together to study countermeasures for the second half. The reason why they did not go into the lounge was mainly because they were worried about being eavesdropped. Although judging from the performance of the Chinese people just now, it seems that there is no need to do so... The problem now is that our technical shortcomings have been clearly understood, but we dont know what leverage they have ?Pierre frowned and complained with some distress. He had already thought before he came that China knew something about Eurocopter''s situation. But I didnt expect to understand it so deeply. So are they bluffing? I mean, they said the NH90s drivetrain is also defective. At the beginning, Flamel was a little intimidated by Cui Wenxue''s determined tone and posture, but now that I think about it... It seems a bit fake. You must know that the information he sent to China before was almost all about performance parameters and the like, and did not involve specific design and production details. ??This can also be pushed back, which is really crazy. I...cant guarantee it. OPierre pulled back his hair and shook his head: Our entire transmission system design route is indeed deeply influenced by the AS365 model, but the NH90s transmission system is actually partly responsible for the Germans..." As more countries participate in joint R&D, it is always difficult to avoid such a situation. Then lets As soon as he started talking, Flamel heard footsteps coming from the stairs on the other side of the corridor. It is also mixed with the sounds of dialogue. ??Moreover, its not Chinese. Several people subconsciously turned their heads and looked over there. Soon, several figures walked down the stairs. Judging from the face, he is European. Immediately afterwards, Flamel realized that the conversations just now should be in Italian. ?Then, the identities of these people on the other side are very obvious. ?At the same time, the people on the opposite side also noticed them. The two sides looked at each other for a few seconds across half a corridor. Those people should be Italians. After the other party continued to go downstairs and left, Flamel judged in a low voice. Unexpectedly, Pierre was more sure than he was: Yes, two of them are engineers from AgustaWestland, and I know them. One of them was involved in the NH90 project before, but suddenly there was no news a few months ago. It turned out to be here..." I remember you said before that there is a 6-7-ton helicopter cooperation project between AgustaWestland and China? ???Le Maires tone was a little dry: Is that project also being carried out here? In fact, in this era, few foreigners can understand the relationship between the research institutes and manufacturing plants under the aviation industry system, because in most cases, when dealing with them, everyone will use the AVIC vest. ?So although he had known about this for a long time, he never thought that he would meet the Italians in Ice City. OPierre nodded: Yes, the model should be called AC139. It is a 15-seater model. It is aimed at the high-end business market and focuses on comfort and high speed. The two of them suddenly felt a sense of urgency. ?Although the AC139 model itself has no overlap with the NH90, who can guarantee that AgustaWestland will not abandon them and create another 10-ton model with China? ??When it comes to selling teammates, the Italians are definitely famous and have no psychological baggage. "no." ?After his brain was running rapidly for a while, Pierre made a judgment: We cant delay it too long. There are more and more problems with the two test-flying NH90s. If several other cooperating countries or startup users run out of patience, we will suffer huge losses..." Flamel also gritted his teeth: In this case, didnt they just say they were preparing two ways of cooperation? How about we take a look at their second plan? (End of this chapter) Chapter 585 NH90 straight 12, isomers Chapter 585 NH90/12, isomers ??The accidental encounter between Eurocopter and AgustaWestland in the corridor was certainly not a coincidence. ??This is exactly what Cui Wenxu said Chang Haonan arranged for the "extraordinary move". ?Of course, its not as outrageous as the Prime Ministers residence on Pingwu Road. ??It just provides an operational idea to drive away the tiger and swallow the wolf, giving Eurocopter a sense of crisis. As for the specific operation, that is, how to arrange the meeting in a less rigid manner, this was actually done by Cui Wenxue himself. ?But no matter what, the final effect is good. Because Pierre is really a little anxious. In fact, this is also one of the huge obstacles facing European integration Even if we only look at the six initial member states of the EU, they have had so many grievances and grievances in history that they are countless. Even if their wariness and prejudice against each other are not expressed openly, it cannot be achieved by a piece of paper agreement. Eliminated. ??Had the treaty been effective, Chamberlain would have been canonized physically. The twenty-minute break passed quickly, and the French team returned to the conference table. It should take turns to propose conditions. After a few rounds of non-nutritious content exchanged between you and me as usual, Flamel pretended to be nonchalant and said: In fact, reaching this point means that he has begun to compromise. Not to mention that the EU later admitted a bunch of small countries that had historically had complicated relations with the original six countries, and even brought in troublemakers like the UK with ulterior motives. ?Actually, if things were normal, there would be nothing wrong with raising the price and paying back the money. Disadvantages are inevitable. ?But this time, they no longer had the same leisurely mood as before. ?However, the conditions they prepared before coming to China were really difficult to put forward after their trump card was revealed at the beginning. ??In case the conditions between the two sides are too far apart and the negotiation fails directly, the Chinese can still have a plan B, but Eurocopter will have a difficult time. In fact, even without the interference of the United States, an integrated Europe cannot truly become a pole in the world. Therefore, he must gather more wool during the limited time when the EU is in power. Hence, Le Maire is obviously a little constrained and does not dare to go too far in terms of conditions. "By the way, Mr. Cui, when the negotiations just started, you said that you prepared two ways of cooperation. We just discussed the first one." Le Maire was indeed working in this direction in the first half of the negotiations. He wanted to wait until the situation improved slightly, then put forward his own plan, and then neutralize it little by little. ??Moreover, he suffered three blows first. Since we cant agree on the amount of the payment for the time being, how about we discuss the second option? ?Its impossible to go to Sikorsky to cooperate, right? Someone else is the manufacturer of the Black Hawk helicopter, and then you go to them to develop a competing product of the Black Hawk? Chang Haonan took advantage of this. But the Italians he suddenly met during the break gave him some concerns Because normally, this situation of "choosing between two options given by others" inherently means losing the initiative. For negotiation, this is equivalent to fighting someone with a sandbag tied around it. Cui Wenxue, who was sitting opposite, was naturally aware of this change in attitude, so he tried not to laugh out loud, and at the same time motioned to the staff next to him to send several other prepared documents to the members of the French delegation. In fact, this second cooperation plan is the condition that he, or Chang Haonan, really wants to put forward. The first one of US$1.8 billion was just to scare the Europeans first. ? ?People all over the world like to compromise, open a window...take down the roof... Ahem. Flamel secretly took two deep breaths to calm down, then pretended to be calm and opened the folder in front of him. The model of this plan is much more complicated in comparison. In short, it is essentially the same as AgustaWestland, both parties work together to engage in joint research and development. Huaxia is still responsible for the rotor system, transmission system and front fuselage, while Eurocopter and other NATO partners are responsible for the aircraft''s avionics system, human-machine interaction system, cockpit system and safety system. Basically, the development component ratio is 50:50, but... ?Pierre, who was next to Flamel, frowned. He found that the most critical power system was not in this plan. ?But at this time, he was a little unsure whether he should speak, so he glanced to the side and found that Flamel was bowing his head in deep thought. I discovered that the power system of this aircraft does not seem to be included in your development task allocation. ?Pierre sat up straight and spoke slowly: "This is the core part of a model. If you include the RTM322-01/9 that we solved, the proportion of this development component should be at least 65:35..." About power systems. Cui Wenxue turned to the next page of the notebook in front of him. The first content was this question. He only needed to organize the language a little: I know that during the joint research and development process, you actually considered two power systems, namely the RTM322-01/9 you just mentioned, and the T700/T6E advocated by Fiat Group. Actually, the current shortcomings of the NH90 transmission system should also be related to your forced requirement for maximum compatibility with these two power systems. Hearing this, Pierre, who had looked calm just now, almost stood up: Can you solve this problem? Originally, NH90 had already made plans to abandon the T700 series engines. But firstly, Fiat has a tougher attitude. Secondly, the T700/T6E engine is a common power system for EH101 helicopters, UH60 helicopters and AH64 helicopters. If the two can be compatible, it will be helpful for the NH90 to seize the 10-ton class in the future. There are huge upsides to the helicopter market as well. So if you cant give up, its better not to give up. Since we are responsible for the research and development of the transmission system, we will naturally be responsible for solving these problems. ?Cui Wenxue replied with a relaxed expression. Actually, he didnt really know the specific difficulty of the operation. He just felt that since Mr. Chang had written it like this, it shouldnt be particularly difficult to solve it. After a short pause, he continued: Not only that, other engines of similar size and power can also be matched with the aircraft by replacing limited transmission system parts, so the power system on this helicopter is closer to the optional module, not to mention, whether it is T700 or RTM322, It is not available to us, so it cannot be included in the joint development share. Compared with the already impressive turbofan engines, Huaxia is basically a blank in the field of turboshaft and turboprop engines. Although there has been some improvement under the leadership of Chang Haonan, it is still a long way from a complete model lineage. Way to go. ?However, in the short term, it is not impossible to directly use two power-reduced versions of TV3-117 or VK2500. After all, the power systems of the Mi-17/M-171 helicopters currently being used extensively by the Army Aviation Force are also these two models, which will not cause any logistical trouble. At this point, the French side has also understood that China is also preparing to develop a NH90 shell replacement product. Mr. Cui, there is no problem with this cooperation plan, but our laws and regulations have very strict restrictions on the military use of products. If you want..." Before Flamel could finish speaking, Cui Wenxue raised his hand to indicate that this was not what he meant: Mr. Flamel, I think you have misunderstood. Our plan is not to follow the normal joint development model. Then what do you mean Flamel looked down at the document in front of him again and felt that his understanding just now seemed to be correct. ?Cui Wenxue adjusted his sitting posture and lowered his head to look at the last content written on the notebook. In fact, even when he first heard Chang Haonan''s idea, he said it was outrageous. But I was finally convinced. ?He spoke slowly: "Both of us are working on separate projects. Yours is called NH90, and ours... It hasn''t been decided yet, but it may be called Zhi-12, or something similar. After the project is established, we will act as each other''s subsystem suppliers, not partners. " In other words, your company provides related technologies of avionics system, human-machine interaction system, cockpit system and safety system to our Z-12, while we provide a complete solution of rotor system, transmission system and front fuselage to NH90 After the event was completed, the two models broke up. We developed both models independently, but there were some international suppliers. In this era of globalization, this should not be surprising, right? (End of this chapter) Chapter 586 The hole has been dug, waiting for someone to jump Chapter 586 The pit has been dug, waiting for someone to jump ???Le Maire feels that his experience over the years has been ruthlessly challenged. ?After listening to the specific plan proposed by the other party, one of his thoughts was - can it still be done like this? But if you think about it carefully, there doesnt seem to be any problem. ?This kind of gameplay really cant fool even a fool. The whole world knows what your two models are, but you can really circumvent regulatory restrictions. Of course, in comparison, the Chinese people are equivalent to creating a brand new model from scratch without paying additional costs to each other, and the NH90 has already invested a lot of resources. ??If you want to talk about it, Eurocopter Group is at a small loss. But as far as the current situation is concerned, it is quite good to get such a result. ??And in the final analysis, the reason for this small loss cannot be blamed on the Chinese people. It was completely caused by the intrigues of several partners. ??Now it is quite good to be able to stop the loss of NH90, a project that is at risk of being unfinished. Party As magical operation is something that Party B cannot fully take care of even if it exhausts its imagination. But we mainly deal with the sinking market, and we have seen all kinds of customers, so we must add this content, otherwise it will be easy to make things unclear..." Otherwise, if you bow your head too quickly, it will easily allow the other party to take advantage of you, and subsequent cooperation will be difficult to carry out. Mr. Le Maire, before formalizing the cooperation plan, we still have several important details that need to be confirmed with you. ?? And Flamel wrote down this content directly in his notebook. ?Of course, we are not digging a hole for the Europeans, but for the Japanese. Although he said that "there will be no restrictions on the choice of suppliers." ?His words made Pierre frown, and even felt a little sorry for the Chinese counterpart opposite him. Thistheres no way, its also some lessons learned from the past. ?Hence, Flamel has already agreed to this plan in his heart. Let the legal departments of domestic aviation companies learn from it when they get back... Simply put, beware of fools but not fools. ? Flamel just felt a little strange. After all, this is something that almost every serious technical person knows, and it seems that there is no need to emphasize it again: This is natural. We have all received professional training and cannot casually modify the technical solutions provided by suppliers. Why do you have such concerns? After a slightly relaxed exchange of views, Cui Wenxue also knew that this time it was basically stable, so he changed the subject and began to complete another task assigned by Chang Haonan: "Since it has been determined that we will be responsible for the rotor, transmission and front fuselage, the relevant parts parameters and process selection must be exactly as we said and cannot be replaced casually. Of course, on the premise that the parts meet the requirements, We will not impose any restrictions on suppliers. ?Cui Wenxue picked up the cup and took a sip of water: You have done business in the European and American markets before, and your contacts are all relatively high-end customers, so you may not have this experience. ??It is more convenient to add a disclaimer directly to the contract. ?But of course there is still some tension in the scene. Its hard to imagine what kind of customer could force such cautious habits. ?But in fact, when Chang Haonan made this request, his intention was not to avoid responsibilities, but simply to dig a hole in this area. ? I''ve set out a lot of restrictions so that you can only find ready stock from one supplier. But this is just like the Carrot Gang during recruitment. This is why it was emphasized earlier that component parameters and process selection cannot be changed indiscriminately. ? Having said that, if NSK Group just puts a brand on the bearings it buys back, Chang Haonan would not be able to do it very well. ??However, in order to surpass the original products of Bingcheng, they secretly modified some parameter calibrations to make their OEM products look more powerful. This is completely giving assists to Chang Haonan. Actually speaking, the Japanese have a very high level of counterfeiting. ?The parameters they marked in virtual formats have been calculated and are not marked randomly. Generally there will be no problems. After all, in most cases, designers will leave enough margin. Including the virtual markup, it is nothing more than leaving 15% and turning it into 5%. At most, it affects the reliability of some limit states outside the technical manual. In fact, this is the main reason why many Japanese companies dare to make counterfeit goods and have not been discovered for decades. It was not until more than 20 years later that as the level of human design became higher and higher, there was no need to leave as much margin as in the past, but the Japanese failed to keep up with the times, and the problem gradually became be exposed. ?However, with Torch Groups current level of calculation, it can already grasp the nuances and make things big. After finalizing the most critical part, the rest became much more normal. ? So much so that the person who even asked was no longer Cui Wenxue, who secretly copied the answers, but Guo Jingshan, who was really considering the technical issues of helicopter design: Also, we are only responsible for the front half of the fuselage design. Although it is an independent part, we still need to connect with you in this area. Ive read the information you sent before. Using integral composite materials to make the body is simply too whimsical. Although it can reduce the weight a lot on paper, it will be a complete disaster in terms of maintenance. Helicopters are different from fixed-wing aircraft. Most of the flight conditions are in the troposphere where the environment fluctuates violently. The requirements for damage resistance and ease of maintenance once problems occur are very high. "There are also the cabin floor and the tail door ramp. These two parts are definitely touched during cargo loading, unloading and transportation. It is impossible to avoid bumps and bumps. You also specially promoted this springboard tail in your materials. The door can directly load and unload small vehicles, but it has to be made of carbon fiber with insufficient impact resistance. Doesnt it mean that it needs to be replaced every few missions? " ??The more Guo Jingshan talked about it, the more outrageous he felt. When he took the decision to introduce the dolphins, he felt that he could only look up to the other side. ? It turns out that only a dozen years have passed, and Europeans have become so unreliable that even he can see the flaws in the design at a glance: "Therefore, we think we should still use lithium aluminum alloy and traditional riveting process. If we must reduce weight, we can try to work **** the structure. But if you insist on using composite materials, then if there is a problem with the life of the fuselage in the future, We cannot be responsible." Hearing these words, the mood on the other side was very stable. ?Pierre even showed a gratified smile that resembled a hero: You dont have to worry about this. The technical information sent previously is for the two current prototypes. We have also discovered problems with large-area carbon fiber materials. Replacing lithium-aluminum alloy is also our next step. As for the weight reduction issue, the NH90 left a large enough take-off power redundancy at the beginning of the design, so it is not a big problem. The subsequent talks ended in such a cordial and friendly atmosphere. On the Chinese side, Bingfei Group is naturally very satisfied. Not only got another external cooperation project, but also perfectly completed the additional tasks assigned by Chang Haonan. No matter how you look at it, its a win. As for Eurocopter, its not a loss anyway. It can be considered a happy ending. Except NSK Group, which is currently completely in the dark... (End of this chapter) Chapter 587 Turbofan 10 turbine blade production begins! (Asking for one Chapter 587 Turbofan 10 turbine blade production begins! (Please support me with monthly votes) ?This kind of cross-border cooperation, especially such an unusual cooperation model, naturally cannot determine all the details in a day or two. ?However, the intentions of both parties are indeed very strong, and the areas they are good at are almost completely complementary, so there is nothing worth wasting too much time on. ?Especially for Eurocopter, since this cooperation is conducted in exchange, it does not even involve money issues, and there is no concern of being audited (although they have indeed shared it). It can be said that it is as if it is tailor-made for them. Therefore, in less than a month, the details of the NH90/Zhi-12 project jointly carried out by Bingfei Group and Eurocopter were notified to Chang Haonan. It also means that his plan has basically been more than half successful. Next, just let Liu Hongbo make targeted calibrations on the transmission system, especially the gearbox part, and then wait for the Europeans to find problems. No matter how you say it, Eurocopter is a well-known giant in the helicopter industry, so it is unlikely that the cause of the accident cannot be found out. Moreover, when that time comes, Chang Haonan will definitely help them. When he received the news, he was in his chief designer''s office, looking at the experimental data submitted in front of him, and adjusting the model of the single crystal solidification process. "this" The conference room was filled with cheerful air for a while. "Mr. He, the person who came up with the idea is sitting here..." Just a future project. ?The Italian Alenia Macchi M346 trainer aircraft and the Russian Yak 130 trainer aircraft are products in this isomer form. ?Chang Haonan raised his head, waved his hands to the other people and said. "Just by modifying such an inconspicuous operation in the name of the article, we can circumvent many regulations against us. This is great news for foreign companies that want to cooperate with us but have difficulty in operation. ! As he spoke, he pointed with his pen at Chang Haonan, who was sitting in the first place. Hai Yide, who was sitting on the other side, knew more about the situation and laughed when he heard He Mings emotion: Whoever came up with this idea is definitely a genius Well, I came up with this method after getting some inspiration from foreign experiences. The core designs of the two are almost identical, but there are slight differences in final performance due to some subsystem performance and customer demand factors. ?Wuchi Haonan knew earlier, and someone would come to inform him. If others wanted to know, they would have to ask themselves. Obviously, He Ming did not know that the genius he was talking about was right in front of him. "Mr. Chang, Bingfei''s cooperation method is... very wonderful..." Several core personnel involved in the Turbofan 10 project were also present, and naturally they saw the contents of the document. After all, information about external cooperation is not something that needs to be kept secret. ?This is not an excuse, but he really made reference to other cooperation projects. As he spoke, he smacked his lips with unfinished content. "ah" He Ming turned the pages of the document to the end, and he felt like he was enlightened: ??Although everyone knows that the M346 is actually a technical solution provided by Yakovlev, and the Yak 130 received financial support from Italy, both parties claim that they were independently developed by themselves and have nothing to do with the other party. What cooperation? ??Has been divorced a long time ago! Therefore, M346 can normally enter the air force service of NATO countries. In fact, based on the current time, this project should be almost at the end of the cooperation and separation between the two parties. After a short pause, Chang Haonan added another sentence: And, ultimately, this is still a passive way to circumvent restrictions. In a few years, we should make them dare not restrict us at all! As long as actual benefits can be obtained, these nominal things can be put aside for the time being. He Ming, who had recovered from the embarrassment, also quickly changed the topic: I just dont know if we are engaged in aviation development. When will foreigners come to us and ask for cooperation? ??After receiving huge orders from Persia for more than a hundred aircraft, all of which were twin-engine aircraft modifications and upgrades, Liming Factory has intuitively felt why arms exports are called a huge profit industry. Although the transactions between the two countries are conducted in the form of barter, that is, Persia pays China for crude oil instead of US dollars, the China Petroleum Company that receives the oil will make internal payments based on the transfer price. Although this price is still much lower than international oil prices, the Liming Factory was still in a difficult situation a few years ago and could not even pay wages. It was a huge surprise to have never seen so much money. . ??If we can directly cooperate with Europeans to earn US dollars... ?He Ming felt excited just thinking about it. Once we finish the project at hand, it will be soon ?Chang Haonan looked at the computer in front of him that was in the process of calculation, stretched and said. ??If ordinary people said such a sentence, they would probably only regard it as an encouragement or a slogan. But the person who spoke this time was Chang Haonan... ?Then we have to pay attention to it. ?As a result, the enthusiasm for work in the entire conference room suddenly increased a lot... About half a month later. Maybe it was because I received the cake painted by Chang Haonan, or maybe it was just good luck. In short, the progress of constructing the single crystal directional solidification process model is much faster than expected. In the precision casting center, Chang Haonan, wearing blue work clothes, stood in front of the specially improved directional solidification furnace, explaining the key points of the entire production process to the equipment operators who would be responsible for the trial production task. "The first process of preparing single crystal blades is to form crystal nuclei, but turbine blades have very high requirements for the integrity of single crystals, so we cannot use the traditional method of implanting seed crystals, but use a crystal selector to grow them naturally. of columnar seeds for screening. "The crystal selector used in the production of turbofan 10 blades is designed on this drawing. The columnar crystals generated in the initial section are eliminated through the circular cross-section spiral crystal selection section. In the end, only one can enter the casting. The only thing that can be controlled in this part is the crystal selector. The temperature at the beginning..." The subsequent mold making process is no different from the past. You should all be experienced..." "The most important thing is the final solidification part. The temperature of the hot end, that is, the water-cooling jacket of the crystallization table, is controlled at 25C. The temperature in the upper preheating zone is controlled at 15151C. The temperature in the lower preheating zone is controlled at 15501C. , the pulling speed is between 4-4.5mm/min..." In addition, during the solidification process, it is important to note that the expansion coefficients of the ceramic core and the shell are different. After high-temperature cooling cycles, core eccentricity or core leakage can easily occur, resulting in dimensional deviations or even complete crystallization failure. Therefore, be sure to prepare the ceramic core before production. Do a good job of fixing ?Such detailed process parameters and precautions required during the production process made everyone who listened to the lecture feel relaxed and a little surprised. After all, this can be said to be the first industrial production of single-crystal blades of nickel-based high-temperature alloy materials in China, but the operation requirements they just wrote down are almost like a mature operation manual. Even if you have heard some of the deeds of the young commander in front of you, you still have some doubts. This is also human nature. After all, those selected to participate in the trial production tasks are all experienced technicians. But being rich in experience also means that they are more easily influenced by past knowledge. ?Of course, everyone is an old comrade in the military-industrial system. Surprises are accidents. It is impossible for anyone to jump out and question the authority of the commander-in-chief without the foresight. ?The name Chang Haonan, at least within the aviation industry system, is still very convincing. ?Following Ma Liping''s order, all operators quickly returned to their workstations and started pre-production preparation tasks step by step. Mr. Chang, I have prepared two sets of personnel and equipment this time, so that each round of production and testing can be seamlessly connected without wasting any time... Chang Haonan was stunned for a moment by Ma Liping''s words, and then he realized that the other party thought that he might need to try a few more times to succeed, so he made extra preparations. how to say. The idea is a good one. Its just that theres a high probability that it wont be used. Is this... ?The latter thought about it for a while and felt that saying it was 100% guaranteed to succeed seemed a bit contrary to scientific meaning, so he accepted it a little bit: Director Mas preparations are indeed in place, but I am probably... 95% sure that the production can be successful in the first time! (End of this chapter) Chapter 588 perfect single crystal Chapter 588 Perfect Single Crystal Nine and a half percent ?Ma Liping opened his mouth several times in succession, but in the end no sound came out. Mainly because I dont know what to say for a while. Having no choice but to turn his attention back to the operators who were busy up and down around the directional solidification furnace. As a scientific researcher, he naturally understands the "hidden rules" in the discourse of some colleagues. ? Being able to tell the figure of 95% is basically equivalent to having 100% confidence. It''s just that out of respect for statistics and of course metaphysics, I won''t say it so absolutely. To be honest, Ma Liping is actually a little nervous in his heart. He has been studying the field of casting technology for more than ten years. Although Chinas domestic level in this field is not high, it has been tracking the cutting-edge progress abroad. The final parameter determination still requires trial and error and debugging during the trial production process. A monotonous and harsh roar sounded in the workshop, but no one found the sound unbearable and still stopped where they were. In fact, he did not doubt that Chang Haonan would eventually be able to produce this single crystal blade. ?Of course, thinking about it, Ma Liping is not a newbie who has just entered the workplace, so he will definitely not say such a thing. But few people can maintain a truly stable mentality when their major scientific research results are implemented. Everyone wants to see the results of this trial production as soon as possible. ??Moreover, Chang Haonan also heard a somewhat concerned tone from the other party''s long-awaited answer just now. ?Ma Liping did not answer directly, but looked at Chang Haonan beside him. Even the countries that are currently doing the best in precision process optimization can still only achieve directional rather than quantitative optimization. There is no need to steal this limelight. ??The section leader who personally led the team trotted over and reported to the two of them. ??The crystal selection method and liquid metal cooling method in front of us is completely new to China... Can you really penetrate the soul with just one shot? I''m afraid it''s not very scientific... ??Just kidding, the other person became the chief engineer of a national key model in his twenties. His ability and background are probably very good. How can he, a person who was only appointed as a professor in his fifties, be so successful... ? And the doubt in his heart just now, which he might not have even noticed himself, and the idea of ??waiting to see a joke, also disappeared without a trace with this gaffe that had nothing to do with the overall situation... ?His voice reached everyones ears above the rumbling sound of the compressor. ?However, Chang Haonan is not prepared to overstep this right. Its just that its much more efficient than the experience-trial-and-error approach, which is almost purely based on ignorance. Therefore, after a moment of silence, he responded again: It would be best if we can succeed at the first time... ?They all wish they could watch the whole process with their own eyes. ??Although he, the director of the foundry center, has no administrative connection with the latter, there is obviously no doubt about who is involved in this scene. Therefore, this first trial production, which is the first of its kind in China, will definitely remain in the history of the aviation industry. Even if you really don''t succeed in the first attempt, the most you can do is complain in your heart. With his order, the vacuum pump first started working, followed by the cooling water pump, heater, stirrer, linear motor... ?While talking, the operator had already completed the setting of the process parameters according to Chang Haonan''s requirements and conducted the final inspection. Agree to start trial production! Although logically speaking, he also knew that researchers like himself would not play any role in specific production. Even though Ma Liping had taken two deep breaths in advance, when he said this sentence, there was still a slight vibrato and a broken sound. Looking at it this way, the other party is indeed quite reassured about this process. ? Ma Liping used to teach at a non-military-industrial university in Liaoning Province. He had just joined Liming Group, and this was the first time he had direct dealings with Chang Haonan. In the end, Chang Haonan felt that after actually entering production, it seemed useless for his group of people to stand here. On the contrary, it would distract the operators next to them, so he suggested loudly: Lets go to the lounge first and come back when the results are about to come out. Mr. Chang, Director Ma, the first trial production of DD8 single crystal alloy blades is ready and can start at any time. ?At this time, Ma Liping was still a little surprised. ?Ma Liping turned his head to look at Chang Haonan in surprise. Although the process improved by Chang Haonan can "efficiently" produce turbine blades, that is compared to the past. This is still based on improvements based on existing technology. Director Ma, do you directly lead the foundry center matters, or do you give orders? In the Turbofan 10 project, he no longer lacks a sense of presence. ??Although it has not yet been determined whether the trial production can really be a success at the first time, the latter''s calm attitude during this important matter also made him admire him in his heart. Now, this opportunity fell directly on his head. ?Directional solidification method may sound fancy, but in essence it is still precision casting. As long as it is precision casting, it is a matter of slow work and careful work. Speaking of the blade pulling speed during the solidification process, the unit is millimeters per minute. ?This process alone takes an hour or more. Hence, by the time the entire production process was completed, it was already this afternoon. Chang Haonan and his team returned to the production workshop early and witnessed the entire process of the completed turbine blades being taken out of the directional solidification furnace, cleaned, and cooled. Finally, after waiting for about half an hour, a group of products was finally handed over to everyone by the section chief - Generally speaking, in order to ensure efficiency, turbine blades are not manufactured one at a time, but in groups, usually 4- 6. Even for trial production. Because there are many destructive items in the subsequent testing, it is necessary to prepare more samples. On the surface, these leaves look a bit unattractive, even gray, and do not look like the high-end products that most people imagine. But for the insiders present, it can be seen that these products at least do not have defects such as shrinkage holes, freckles, and streak crystals that can be seen with the naked eye. Compared to the previous useless models that could be directly included in the textbooks, they are already so good that I dont know where they are. ?Of course, the more detailed parts at the crystal level require further testing with equipment. Quickly, send it to the testing center for comprehensive testing, especially the alloy morphology and elemental composition. The results will be available as soon as possible. Ma Liping turned around and handed the sample to an assistant behind him. ?Originally, Liming Factory usually sends this kind of testing outside, just like what Chang Haonan did two years ago. But after the precision casting center was established, they spent huge sums of money to purchase a batch of equipment, which greatly reduced the time waiting for test results. Soon, several X-ray detection and electron microscopy test results were sent back after being copied. Ma Liping almost snatched the report into his hand, pointed it at the light not far away, took off his glasses and moved closer to examine it carefully. Cross-section dendritic structure, cross-petal morphology The primary dendrites grow in the vertical direction with a spacing of 373 m, and the secondary dendrite arms are distributed in parallel with a spacing of 80 m The average size of dendrites is 450nm, and the size between dendrites is 670nm As the report went further and further, his expression changed from nervous to relaxed, and finally to ecstatic. However, just when he turned to the last page of the test report and was about to open the champagne, the expression on his face suddenly froze. The longitudinal segregation coefficient of aluminum is 0.82, the longitudinal segregation coefficient of cobalt is 2.60, rhenium is 12.28, and tungsten is 32.21 /á eutectic phase content is 13.6% Ma Liping raised his head with a confused expression and looked at Chang Haonan next to him: Mr. Chang, is this...the content of the eutectic phase a little too high..." And...Although the overall content of impurity elements is very small, the distribution is uneven. The rhenium and tungsten elements that affect performance are almost all concentrated at the root of the blade, which is very detrimental to the working stability..." In fact, when he first heard Chang Haonan say that he could succeed in one attempt, Ma Liping even wanted to see the opponent suffer. But now, when he actually saw the result, he felt that it was completely unacceptable. ?The previous test data were all very good, so why did something go wrong at the end? I have prayed ninety-nine times, but I trembled and failed to understand the last one. This is the most annoying thing. ?However, Chang Haonan, who was not far away, showed no signs of anxiety at all. He was writing and doing calculations with his head down and holding another piece of information... Mr. Chang? "Director Ma, you are too anxious..." After a while, Chang Haonan raised his head again and handed Ma Liping the information he had never taken out before: We are in trial production, and we need to conduct a test after each process. There is still a heat treatment that has not yet been completed. The blade is still a semi-finished product. Naturally, it cannot be perfect in every aspect. After being told this, Ma Liping realized how embarrassed he was. ?Its not that I didnt understand when I was trembling at the last moment, its that I havent started to tremble yet ?Of course he is not unaware that there may be subsequent processing processes after the blades are formed, but he may have been too nervous just now and his mind was confused. Compared to Chang Haonan, who is in charge of process design, he seems to be more concerned and chaotic... ?Thinking of this, Ma Liping forced himself to calm down, and then looked down at the information Chang Haonan had just given. This is a dense form that spans several pages. He quickly saw that this was a parameter list for the heat treatment process. Each process corresponds to different defects in semi-finished products. In other words, Chang Haonan has predicted the possible test results in advance and made different heat treatment plans accordingly. Now you just need to select according to the table! At this moment, Ma Liping suddenly felt... So be it. ? He ??has always been curious about how Chang Haonan plans to deal with product differences caused by equipment and environmental fluctuations during the crystal casting process. As a result, they calculated everything directly... At the same time, Chang Haonan has handed over the selected heat treatment parameters to the section chief who has been waiting beside him: "You should have seen the process of choosing a craft just now. Just follow my method from now on, go and deal with it!" The waiting process later seemed a bit boring compared to the previous one. Chang Haonan''s preparations have reached this outrageous level. Even if everyone was a little worried about the final result of the trial production just now, they have basically stabilized their mentality now. Unsurprisingly, when the final sample test results after heat treatment were sent again, the element segregation and eutectic structure had been greatly alleviated, and the content of the á phase was almost one-third higher than before. In other words, it is almost a perfect single crystal of DD8 material! Turbine blades, is this considered...made? He Ming, who had not spoken much just now, felt that the world seemed a bit unrealistic. Chang Haonan did not answer his question. He just put the blade back into the box and turned around: Okay, now that this problem has been overcome, the production of the combustion chamber and turbine subsystems should also be put on the agenda! (End of this chapter) Chapter 589 An old acquaintance from the aviation school Chapter 589 An old acquaintance from the aviation school After solving the key technical issue that hindered the production of single-crystal turbine blades, Turbofan 10 has entered the component-level production and testing process. This is another stage where Chang Haonan can relatively let go. After all, Liming Factory still has some capabilities, and there is no need for him to go out and drive screws himself. As for testing For component-level testing, Chang Haonan is quite confident that he can go through it once. ??And even if there are some minor problems, the entire team has been working with him for a year, so he doesn''t have to teach everything step by step. As for the die forging press... After all, although they are both under the category of casting, there are still a few million differences between single crystals made by directional solidification and their large-scale castings. At most, we can learn from each others experiences in dealing with shrinkage porosity. The main thing is to let the organization know where you are. After all, the project timetable was to have the equipment in trial production by October 1999. For a behemoth with a dead weight of over 20,000 tons, it would take at least about half a year to transport the various subsystems from the place of production to Jiangcheng and then install them, not to mention the subsequent equipment debugging. , the time actually left for them to produce is actually not very abundant. In case something happens, it is best to respond at any time. ?Including daily security, although Zhu Yadan is here, it is enough to deal with some ordinary accidents, but in this age when social security is difficult to reassure, Ding Gaoheng still often needs to personally intervene and make arrangements. Although the Air Force Aviation School is a school, it is an active unit at the deputy corps level of the People''s Liberation Army. In short, when Chang Haonan finally made it all the way to his destination, it was already several days later. Chang Haonan''s current importance is self-evident. Although there is no such term as "strategic scientist" at the moment, his actual functions are almost the same. So, several engineers responsible for producing movable beams had actually gone back to optimize their own process parameters earlier. ??Except for a few special circumstances, the students there are automatically considered to have enlisted in the army when they enter the school. They receive the rank of air force cadet and start counting their military years. The instructors and teachers are all active-duty officers. By the way, I went north to the Air Force Aviation School in Changchun and took a look at Chang Jiayao who was studying there. They are all managed in a closed manner. ?The last person to receive such treatment was Mr. Qian. Coincidentally, the person who arranged security work for Mr. Qian happened to be Ding Gaohengs father-in-law... There is nothing we can do about this. It does not involve any issues such as approval. ??It doesn''t matter if it''s just in the capital, or between these units within the Science and Technology Commission system, but if you want to go somewhere else, you have to make a report first. ?While the importance and voice are gradually increasing, it is inevitable to pay a small price in terms of freedom. ?This kind of place naturally cannot allow people to wander around like a normal university campus. ?However, at his current position, even every move in his personal life can no longer be done as he pleased like in the past. ?So, Chang Haonan decided to take advantage of this hard-earned gap between the two projects to give himself a little vacation. Therefore, when Chang Haonan arrived at the school gate in the Jetta King that came from Shengjing, he was stopped by the sentry as expected. ??Due to the numerous incidents in the past two years where criminals attacked sentries and then grabbed guns and committed crimes again, by 1998, the sentries at the gate of the compound were basically in groups of two, with guns and ammunition separated. Comrade, there is a military control area ahead, and civilian vehicles need to show their IDs to enter. I dont have any documents. Of course I dont have them. ??Zhu Yadan theoretically has the rank of captain of the armed police, but he is not in the same unit and is of no use. According to general custom, in order to show respect for the sentry, Chang Haonan chose to get out of the car to negotiate with the other party: "I am" He hesitated for a moment, feeling that the relationship between brother and sister seemed a bit unconvincing, so he changed his explanation: "I am a parent of a student. I just took a break recently and wanted to come over for a visit." ?However, his explanation, coupled with the hesitation just now, made the sentry suspicious. Mainly, under normal circumstances, when talking about parents, the basic default is to be the elders. As for Chang Haonan''s appearance, it doesn''t look like he could have a child going to college. In fact, the sentry felt that he was like a college student. Are you... a parent of a student? ?The other party frowned: "Okay, which student in which department or class do you want to visit? I will contact their instructor for you." ?At this time, Chang Haonan felt a little embarrassed Since Chang Jiayao finished her college entrance examination, the two of them have not seen each other again, so he actually does not know the specific major and class of his sister. Uh...I dont know which class I am in, but I am a freshman this year, and my name is Chang Jiayao. There should not be many female students in your college, so its easy to find one. ??The sentry glanced up and down at Chang Haonan with a look as if you thought I was a fool: Parents of students, dont know which class your child is in? At this time, he had already listed Chang Haonan as a highly suspect subject. ?This suspicion does not mean that the latter is a spy. Rather, I feel that this is probably the boyfriend of the female student, who is looking for someone to come out in the name of her parents... According to the regulations in the army, it is obviously impossible to go out for a date during the working day. ?Thinking of this, the sentry thought to himself: How could such a trivial trick deceive me? ?The eyes also became sharp. ?Of course, he cannot directly drive away people who claim to be parents of students. ?However, there are other ways to deal with young people who are in love: I can contact Chang Jiayaos instructor, but we have the information of the students parents. If we cant match it by then, you may be suspected of violating my countrys Military Facilities Protection Law Normally, if you are really looking for a date with a female student, you should have found a reason to run away at this point. ??But Chang Haonan had a clear conscience, and he didn''t know the sentinel''s inner thoughts at all. He just regarded it as a routine statement and nodded without thinking about it. In fact, he had a letter of introduction stamped by the Shengjing Military Region Air Force Command in his arms. But if this thing was taken out, the impact would be quite big, and it might even be a burden for Chang Jiayao, so she chose to take the normal route of visiting the students'' parents. ?The other party was a little shocked when he saw this unsophisticated person. He turned around and ran back to the post, picked up the phone and started calling people. ??Even specifically asked the other party to bring two more people out to prevent this bold and high-risk subject from causing trouble. Soon, an open-top off-road vehicle sped past the school gate. An air force colonel wearing a classic "army jacket, navy trousers" uniform stepped out of the co-pilot''s seat, followed by two soldiers. He negotiated with the sentry for a few words, and then looked towards Chang Haonan. ?Several people walked up to the latter in an aggressive manner: Hello, I am Comrade Chang Jiayaos instructor. Please show me your ID and the information we have here..." ?Before he finished speaking, the air force colonel was stunned for a moment. Immediately afterwards, the originally guarded expression on his face suddenly relaxed, and he shouted in a somewhat unbelievable voice: Mr. Chang? ?This sound also reminded Chang Haonan of the identity of the officer opposite: You are...Zhang Jiujiang, instructor Zhang? (End of this chapter) Chapter 590 New generation training aircraft system Chapter 590 New Generation Training Aircraft System ?Zhang Jiujiang is the veteran pilot who flew the J-7 with Chang Haonan into the sky to observe the airflow on the wing surface of the J-8C prototype. Later, the two met again in Yan Liang. ? At that time, Zhang Jiujiang was temporarily pulled over to fly the prototype of the J-7F to demonstrate its performance to foreign customers, while Chang Haonan happened to be working on the improvement of the J-7F in Haojing. ?Havent seen him since then. ?Given the nature of Chang Haonan''s work, he sees too many people every day, and Zhang Jiujiang is just an ordinary person who he has only met twice. What''s more, during one of the meetings, the other person was wearing an oxygen mask and could not see his face clearly. So when we first met, we didnt recognize each others identity. But for Zhang Jiujiang, in his more than 20 years of flying career, he has only carried one completely non-professional "passenger" in the back seat. Moreover, this passenger was deeply involved in the research and development of several aircraft models. His impression It''s definitely quite profound. Seeing the scene of two people shaking hands and hugging each other, the most shocked person was the sentry standing next to him who had just called the person out. Are you really a parent of a student? Looking at Chang Haonan''s face, I really couldn''t convince myself to believe this. ?So, while no one was paying attention at the moment, he quietly hid back in the guard box to register the license plate. Therefore, after eliminating all possibilities, the correct answer was quickly guessed: ?Chang Haonan still knew nothing about the small theater in the sentry behind him, and just nodded: "Yes, my sister was admitted to your university last year. Since then, I have been busy with projects and have never met her. I have some free time recently, so I thought I would come and have a look." Theres nothing unusual about it. ?However, to the sentrys ears, this conversation was different Even though he was just following the rules on the surface and actually did nothing wrong, he knew the process of the brainstorming session better than anyone else. ?The sentry felt that his brain was about to burn. ?But after all, he knew Chang Haonan''s name, and also knew that Chang Jiayao''s father was called Chang Yuanchao, and Chang Haonan was obviously not that old. Zhang Jiujiang, Air Force Colonel. Its not a matter of panic, but the embarrassment is real ?Tell this young man Mr. Chang... In fact, not only him, but also Zhang Jiujiang was a little confused for a while. This other one is He is the head of the aviation flight major of the college and also serves as the teaching director of the flight training course. Okay, Ill take you in, but today is not a day off. According to the rules, you have to wait until after class to meet the students. So Mr. Chang, Chang Jiayao is your...sister? ?Zhang Jiujiang took Chang Haonan to write down his name, contact information and purpose of visit in the notebook, and then looked at Zhu Yadan not far away: For him, what just happened was actually that the sentry questioned him normally and then called Zhang Jiujiang out. It feels quite like "your friend''s son went shopping with his wife, but you mistakenly thought he was cheating on you and informed the other party, but you later found out that it was an accident." But Director Zhang obviously knows this person... Uh...Zhu Yadan, my guard. Chang Haonan couldn''t make up any reasonable identity for a while, so he had to tell the truth. When he heard the last three words, Zhang Jiujiang''s originally fluent writing suddenly trembled: "I go" "you" Although the relationship between the two systems of the military and the Science and Technology Commission is very close at the top level, at the bottom level, except for a few positions such as military representatives, there is not much overlap between them. ?Although Zhang Jiujiang is a pilot, he cannot keep an eye on the development progress of new equipment all day long. Besides, I dont have that authority. So, he actually only vaguely knew that Chang Haonan''s status within the aviation industry system should not be low. But as a soldier, he knows very well who can be a personal guard in peacetime. There are guard platoons at the regiment level, guard companies at the division level, and guard battalions at the corps level. But these establishments are all allocated for the position of troop commander, not for individuals... ??So, Zhang Jiujiang subconsciously wanted to ask you what you have done in the past two years, even the security guards have been involved. ?But in the end, I didnt ask. ?Years of organizational discipline have taught him that there are some things that should not be asked but should not be asked. Okay, registration is complete. ?Zhang Jiujiang returned the registration form and pen to the sentry, and then saluted him: The vigilance is very high, not bad. He has been transferred to the flight academy for almost a year, so he can certainly guess what the sentry was thinking when he called him out. Although the actual situation turned out to be a mistake, there is nothing wrong with this approach. Hands aside, as a superior, we cannot allow soldiers to bear this psychological pressure for no reason. ?After some operations at the door, Chang Haonan finally entered the flight academy in Zhang Jiujiang''s open-top jeep. ?His own Jetta King parked in the parking lot near the entrance of the college. Actually, before I took the college entrance examination, I also thought about participating in the recruitment to become a pilot. Unfortunately, my teeth were not in good condition and the army confiscated me. Chang Haonan sat in the passenger seat and looked at the students walking in columns on the road around him. The seating arrangements in the military, especially in grassroots military units, are slightly different from those in local areas. Generally, the co-pilot is seat 1. ?Although the registration for the college entrance examination actually happened decades ago for him, and he has long forgotten about it, he still can''t help but feel a little emotional when he really mentions it. ?Human life is really unpredictable. How could you say that I am... Zhang Jiujiang also smiled: Thats all thanks to the recruiter who rejected you, otherwise our country would have lost an outstanding young scientist... ?Chang Haonan opened his mouth and found that he really couldn''t answer the question, so he had to change the topic quietly: By the way, does Instructor Zhang take care of my sisters class? To be precise, they are in charge of their class. Zhang Jiujiang replied casually: Our country did not recruit female pilots every year in the past, so there was no universal training program. This time, the superiors hope to use their group to determine a systematic training method. "What is the direction of their training? Fighters? Or transport aircraft?" Chang Haonan suddenly remembered that Chang Jiayao had said on the phone that she wanted to fly a plane she designed. They are not separated in the first two years, including when they are doing basic flight training for beginners. They are separated only after the intermediate level. Fighters fly JJ-5, and transport aircraft and bombers fly H-Jiao 5. Zhang Jiujiang replied: However, according to the current plan, female pilots will all be assigned to the transport flight major. They still have to do it step by step. It is too risky to go directly to fighter jets. Speaking of fighter jets, I thought I could stay in the combat force for a few more years, fly the J-8C you built before transferring to an aviation school, but I didnt catch up with this opportunity when I arrived. Speaking of this, there was a bit of regret in his tone. Combat troops also have training instructors, and Zhang Jiujiang has been working in this position before. ?However, he was later seconded to the test pilot group, and then came to the aviation school as a full-time instructor. At this point, unless something unexpected happens, there will be basically no chance of returning to the combat unit. Although it was his own choice to teach at an aviation school, as an Air Force pilot, it would definitely be a lie to say that he did not want to fly the latest domestically produced aircraft. It doesnt matter, our aviation school will definitely have new training aircraft. We cant always use the JJ-5 and J-7 to do our job. At this time, K8s self-use model Coach 8, as well as the Hun Yun Jiao 7 modified from the Yun 7, have not yet been finalized and put into service. Therefore, the aviation schools coaching equipment is still based on the level of the 1950s and 1960s. In fact, it is already a bit Out of touch with the times. I do know about this. Guizhou Airlines has transformed the JJ-7 into a serious advanced trainer aircraft. It is said that the Bayi Aerobatic Team will also use this model. ?Although Zhang Jiujiang didnt know Chang Haonans role in the JJ-9 project, he still heard about the new model: I would say, as long as the JJ 7 can be replaced, anything will do. Chang Haonan naturally understands the resentment of the pilots, especially the flight instructors in the back seat, towards the JJ-7. After all, he has experienced it. Isnt there another K8 in Hongdu? It has been exported a lot. It should be a sure thing that it will replace Chujiao 5. ?Chang Haonan continued to comfort him. Its hard to say. ?Zhang Jiujiangs attitude is somewhat uncertain: "It is now said that the superiors are hesitating whether to continue to retain the three-level coaching system of junior-intermediate-senior, or to replace the junior coach 6 with a more advanced model and become a two-level coaching system of junior-senior. The fourth year Let the trainees directly join the army and start flying the training model of the main fighter aircraft. Is there such a thing? ?Chang Haonan raised his eyebrows. Its just a rumor, Im not sure yet. Zhang Jiujiang just mentioned it casually. He felt that at his age, he might not have much hope before the flight was grounded. ?But this was a wake-up call for Chang Haonan. Hongdu, the aviation industry, has been having a tough time lately. ?Because the JH-7A appeared five years earlier than the original timeline, the Qiang 5D, which was supposed to be finalized and equipped with troops in batches, was directly squeezed out of its ecological niche and transferred to the technical reserve. Its a big loss. ?Although this fact cannot be blamed on himself, if there is a chance, it is better to help him. (End of this chapter) Chapter 591 A battle hero who upgrades two levels in a row Chapter 591: A combat hero who upgraded two levels in a row It can only be said that it is worthy of being a flight academy. The campus area is indeed a bit exaggerated for a university. ??The open-top jeep went around and around on the internal road several times until the wind made Chang Haonan want to sneeze, and finally stopped in front of an inconspicuous building. Today, a superior leader came to inspect. If you go directly to the teaching area, there may be extra security. You have to get out of the car and walk in. Its too far there and its inconvenient. ?Zhang Jiujiang explained while pushing open the car door: "But they are about to finish class anyway. I will take you to my office to sit for a while, then go to the cafeteria to have a meal, and then ask their life teacher to contact your sister to come out." No problem, this is your territory, its up to you. Chang Haonan, who was in the passenger seat, also got out of the car. Since I havent had much to do these past few days, I dont mind waiting a little longer: However, when superiors come to inspect your internal units in the army, they still need to set up security? ? He ??just recalled that when he entered, he didn''t seem to find any signs such as Welcome to Guidance, and the sentry didn''t seem to make any extra moves (of course, he still didn''t know the other person''s inner theater at that time). ?Zhang Jiujiangs office is on the second floor, which is very convenient. Chang Haonan noticed that there was a photo next to the other party''s desk, but it was not a common family photo or travel photo. It was about this time last year when he, Zhang Jiujiang, Lu Yuying and others were in the J-7F Picture taken in front. Secondly, the J-7F is, after all, the first model he built after his rebirth. ?At present, the first batch of 24 units of this model should have been delivered to the Pakistan Air Force, and there seem to be small batch orders from other countries being scheduled later. Usually its not necessary, but the situation is different today. You can see that there was no movement outside just now. Its just loose on the outside and tight on the inside ?Chang Haonan picked up the tea cup, blew it gently, and then asked. Although there is a bit of a coincidence. ?However, Chang Haonan has indeed not paid attention to it for some days. Its a pity, otherwise we would have had the opportunity to shoot a beyond-visual-range missile, and we would have been able to brag about it when teaching students... ??Although the equipment of the Chinese Air Force has improved a lot compared to the previous generation, the main force today is still the J-6 and J-7, and it can be said that there are very few pilots who have fired medium-range bombs. Zhang Jiujiang, who was walking next to him, replied somewhat vaguely: Seeing that he didn''t explain it more clearly, Chang Haonan also knew that the matter was finished here, so he didn''t continue to ask more questions. It wasnt until a steaming white porcelain cup was placed on the coaster in front of him that his mind was pulled away from the memories brought by the photo. By the way, Instructor Zhang, did you later participate in the test flight of the J-7F? Of course, it doesnt really count as extra security. We just dont allow vehicles to enter, so as not to block the road and affect the journey. Youre talking about after that air show? ?Although it has only been a year, when I see this photo, I still feel a sense of illusion that time and space are intertwined. Sit down wherever you want and Ill get you something to drink. Zhang Jiujiang sat down on his office chair holding the same cup: I flew a few more target tests at the Dingxin base, with the 23mm cannon, as well as the PL-5II and PL-8. I havent flown any other subjects. I was originally going to fly the PL-11, but the flight schools transfer order came in advance. First of all, too many things have happened in the past year. While talking, the two of them had arrived at the door of a four-story office building. It is still worth talking about. ?Zhang Jiujiang had previously known through Lu Yuying that Chang Haonan had been deeply involved in the J-7F and even participated in the design of the J-10. ??Although I still dont understand why one person can participate in the projects of both 601 and 611 in a short period of time, in short, I can talk about it with confidence. So he paused for a moment and took a drink of water, then continued to add: "After all, we were temporarily seconded to the flight test center because of a lack of manpower. The establishment is still in our own army. Although they don''t say it, they are not very good at arranging for us to recover from the spin or stop and restart in the air. It is difficult to explain such high-risk projects if something goes wrong. Of course, to put it bluntly, there are concerns about our level. But to be honest, regardless of other subjects, if we just fly stall and spin recovery, no test pilot can fly better than us instructors..." Stall and spin recovery are necessary subjects in the flight training process. Of course, students only need to perform them once, but instructors need to fly them day after day, year after year. It is definitely not an exaggeration to say that. It can be seen that although Zhang Jiujiang chose a relatively stable job in an aviation school, he still has aspirations for a more challenging job. ?Perhaps he also realized that he seemed to be complaining just now, so he changed the subject: Sigh...I wont mention it anymore. Although its a dull place here, my wife and children dont have to worry about it. I can go home on weekends, which is good. Of course at your age, you shouldnt feel this way, hahaha Chang Haonan didnt find it easy to answer this. ?Mainly because his actual age is actually not much different from Zhang Jiujiang. But because I didnt get married in my previous life, so I really dont feel that way. So I had to do a tactical drink of water to cover up the slight embarrassment. Fortunately, this topic was quickly dropped, and the two of them started to talk about some serious things that should be discussed between parents and teachers. Such as academic performance and so on. Okay, its almost time, Ill take you to dinner. After chatting for a while, Zhang Jiujiang looked at his watch, stood up, put on his coat again, and prepared to go out with Chang Haonan. But just when the two of them went downstairs to the lobby on the first floor, they happened to meet a group of people who were about to go upstairs. The leader is carrying a gold star, with a stern face and wind-like steps. ?Chang Haonan thought for a moment and realized that this should be the "superior leader" Zhang Jiujiang just mentioned. The rank of major general also meets this security level. ??If he were at a higher level, he might not be able to get in if he didn''t take out the letter of introduction today. With this thought in his mind, he prepared to step aside and let the other party pass first. Zhang Jiujiang naturally stood at attention and saluted. ??When several people''s figures intertwined, Chang Haonan glanced at the face of the officer at the front. The appearance of a young man in casual clothes in this place is not particularly common, so it will inevitably attract more attention. As a result, the eyes of the two people intersected for a moment. Then, the steps stopped almost at the same time. ?Chang Haonan was already shocked. I just came to see my sister, how could I meet an acquaintance? Zheng Liangqun, the pilot who piloted the J-8C to win the first victory, had met before when he received the award at Sandaomen. Because this fact is so big, it makes a deep impression. Comrade Chang Haonan? The visitor obviously recognized him. Zheng Chang Haonan got stuck before the first syllable could be uttered. In his impression, Zheng Liangqun was still the commander of the Kongyi Division. But the general title on the other side clearly indicates that he has been promoted again. In the end, I had to choose a title that was unmistakable: General Zheng, what a coincidence, long time no see. ?Chang Haonan felt that he might not be able to hide his identity. As expected, the other party doubted almost without thinking: Comrade Haonan, you are here... My sister goes to school here, so I came to see her during my vacation. After giving a vague answer, he quickly changed the topic: I just heard from Instructor Zhang that a leader came to inspect today, but I didnt expect that it was you. Alas, why dont you think its yours? Its out of sight... Zheng Liangqun is still grateful to Chang Haonan. ?In the past year, he has directly participated in the bat hunting operation that shot down the MiG-25, and indirectly participated in the embankment operation to deter the Royal Navy fleet. It can be said that he has been involved in the two biggest jobs of the Air Force in the past 30 years. He also received the honorary title of "Air Force Combat Hero" and was promoted two levels in a row, crossing the most critical general officer threshold for a mid- to senior-level commander. ?Although this is inseparable from his own efforts, after all, the improvement of the equipment level of the PLA Air Force must also be taken into consideration... (End of this chapter) Chapter 592 Parade Aerial Echelon (4K) Chapter 592 Parade Air Echelon (4K) The two people communicated like old acquaintances, which confused everyone around them, from the dean of the flight academy to Zhang Jiujiang. The specific circumstances of the bat-hunting operation and embankment-building operation are not completely disclosed even within the military. Especially the latter, there are almost only some rumors. ?Although many people speculate that Zheng Liangqun''s two consecutive upgrades may be related to this, the relevant details are destined to be unknown. Even the fact that a "Wanglang 97" fleet wants to come to provoke is not understood by everyone. Therefore, no one knows how these two people, who seem to be completely unrelated regardless of age or position, met. Except for Zhu Yadan who was following Chang Haonan. She was already used to it. ??Zhu Yadan has long discovered that although he is a young leader, he has acquaintances almost wherever he goes, and the relationship is pretty good... When he was first reborn, he might not even be able to get a seat at the table when he encountered this kind of meeting. But the things on the scene are obviously indispensable: ?Of course, this is not surprising. In this year, the efficiency of information transmission was relatively slow. It is possible that the order to promote Zheng Liangqun from deputy division to deputy division was issued before the news spread. It means that Zheng Liangqun has now been promoted to deputy chief of staff of the Shengjing Military Region Air Force. But after Qi Litong relayed it, the transition was very smooth. Hello, Dean Qi. Chief of Staff Zheng, on behalf of the Shengjing Military Region, came to our school to inspect the training of student pilots. He is about to go up to have a small meeting. Mr. Chang, please see..." Chang Haonan has never heard of this person, and he didn''t expect him to be the leader of the school just now. Chang Haonan was sitting at one of the two main seats at the conference table. He lamented that he could be pulled over for a meeting during his vacation, and listened to Zheng Liangqun''s opening remarks next to him. But its actually very useful. ?This sentence sounds like it has no beginning and no end, and it seems to be a bit overstepping its authority. When they first met, Zheng Liangqun called out Chang Haonan''s full name, but that was all, and did not introduce any more details related to Chang Haonan. After all, Chang Haonan does not look like a member of the military, and it is a unique situation to jump two levels in a year. Otherwise, I would not have used such a strange title as General Zheng. ?In just a few minutes, he had discovered that Chang Haonan didn''t seem to know much about Zheng Liangqun''s current situation. The most important thing is that everyone can see that the relationship between Chang Haonan and Zheng Liangqun is very good. The first time the two of them met was at the J-8C delivery ceremony more than a year ago. Decent, natural, without any presumption and deferential attitude. ?If the person concerned talks about this matter himself, it will be self-promoting on the one hand, and it will be more embarrassing on the other hand. But he is not from the Science and Technology Commission system. As the leader of the first batch of troops to receive the J-8C model, Zheng Liangqun often went to the 601 Institute and the 112 Factory, so he knew a lot about Chang Haonan''s later achievements. As the pleasantries between the two people came to an end, another major general next to Zheng Liangqun also had the opportunity to speak: The last half of the unfinished sentence was obviously left for Zheng Liangqun to pick up. At that time, Chang Haonan was just a young technician who played an important role in the 83rd Project. Chang Haonan naturally understands the underlying meaning. Qi Litong is also quite experienced in facing this situation. In short, no matter what, this dinner must be put away first. I am the dean of the Air Force Flight Academy, Qi Litong. I have admired your name for a long time. ?Hence, after briefly introducing himself, Qi Li fairy tale changed the subject and said: So, the name has not been changed. Its an honor to meet you. Otherwise, today wouldnt be a leadership inspection. Comrade Haonan, if you have time, come along. The topic to be discussed today happens to be related to the equipment situation. It would be better to have an expert in the aviation field here. But the effect is very good. Although the latter''s military rank and rank are the same as Qi Litong''s, similar to the local situation, the value of their positions and the development prospects behind them are very different. ?Given Qi Litongs position, he may not actually know more than Zhang Jiujiang. Because it clearly pointed out to Chang Haonan Zheng Liangqun''s current position and the purpose of his trip. Later, in the conference room on the top floor. Are you Comrade Chang Haonan? That year when I was twenty, there was a meeting in the group, and I sat there like a gangster... The first time he sat next to Yang Fenghata at the symposium of the 83rd Project, he was even excited about it for a while. ?But now, he has long lost his excitement about it. ??If Zheng Liangqun hadn''t invited him to this meeting today, he wouldn''t have even wanted to come. After all, you can imagine how boring this kind of summary meeting after a leadership inspection is... However, just when Chang Haonan was ready to spend the next boring thirty minutes to an hour, Zheng Liangqun''s first words hit him directly in the face: Comrades, the purpose of my coming to the flight academy this time is actually to confirm the arrangements for the review of the 9910 Project air formation. "I go?" ?Chang Haonan felt excited in his heart and sat upright immediately. ??If you talk about this, then I wont be sleepy. The leaders of the flight academy sitting on both sides of the long conference table had a greater reaction than Chang Haonan. Obviously, they didn''t know about this before and just regarded it as a normal inspection by their superiors. This is obviously the reason why Zheng Liangqun only expressed his intention now: Thanks to the hard work of comrades in the military industry system, our Air Force is modernizing at an unprecedented speed. "However, the modernization of the military is not only the modernization of equipment, but also the modernization of personnel and thinking. For our Air Force, flight students and flight instructors are the main force in personnel modernization and the core of the aviation force. future." "Therefore, Commander Li Liangxin, the commander-in-chief of the troops under review, and of course me, hope that the last fixed-wing formation can be prioritized as a training aircraft echelon. If after inspection, it is found that the conditions are not sufficient, an attack aircraft echelon will be used as a backup. ? ? For everyone in the flight academy, they are a little scared, but they are no longer nervous Since Zheng Liangqun can say this, it means that they should have passed the test. The attack aircraft echelon is undoubtedly the top 5. This model has already participated in the 1984 military parade. By the eve of the millennium, it was already considered a backward model no matter how much modifications were made. If it was not forced, it would not be used in another military parade. . Sure enough, after a brief pause, Zheng Liangqun continued: Judging from what I saw this past day, I think the Flight Academy has the conditions to participate in the military parade! ?After a brief silence, warm applause erupted from the small conference room. This is definitely a huge surprise. ? Participating in the National Day military parade is a matter of supreme honor for any soldier, including Zheng Liangqun, who has already achieved military exploits. What''s more, the flight academy is generally considered a "retirement unit". Then there are two things that need to be determined next. When the applause gradually subsided, Zheng Liangqun raised his hand and pressed it down slightly, and then continued: First, determine the specific reference crews, including five selected crews and one backup crew. Each crew needs to have a student pilot and a flight instructor. Of course, the aircraft must still be controlled by the instructor. Second, I know that the types of aircraft at the aviation school are relatively complex, so we need to confirm the reference aircraft type. When it came to selecting people at the beginning, the people below didnt have much reaction. There are many instructors in the flight academy, but everyone knows who has the best skills. The military parade is something that must be foolproof. No one dares to play tricks on it, just let their abilities speak for themselves. ?Of course, students are much more "free" in their choices, but that will be discussed later. The second one, choosing a plane, made Qi Litong and others look sad The aviation school currently has five flagship aircraft models. Chujiao 6, served in 1962. JJ-5, which entered service in 1966. Yunjiao 5, served in 1962. Hongjiao 5, the aircraft itself was put into service in 1968, but the prototype is the IL-28 which was put into service in 1950. JJ-7, which was put into service in 1987, is considered a "cutting-edge" model, but both in terms of flight performance and cockpit environment, it is really not suitable for flying large formations at low altitudes and low speeds. After thinking hard to no avail, everyone suddenly remembered that Zheng Liangqun seemed to have brought in a foreign aid for today''s meeting... ?Hence, all eyes turned to Chang Haonan, who was sitting attentively eating melon. ?) The latters smile froze on his face. Why did the cue suddenly come to me? Mr. Chang, you should know more about the situation in the aviation industry. I wonder if the JJ-9 being developed by Guizhou Aviation Industry has the conditions to participate in the 9910 project? Zheng Liangqun suddenly asked. Originally, this matter should be connected between the flight academy and Guizhou Airlines after the meeting. However, the communication from northeast to southwest is actually a bit complicated these days, so he directly brought Chang Haonan to the meeting. ?Furthermore, it is expected that the latter will also be interested in the military parade. ?Chang Haonan knew that the "conditional" mentioned by the other party did not simply refer to whether he could serve before October 1999. ?Its more about whether the model is mature and reliable Based on past experience, a model that has been equipped with troops may not be reliable. On the other hand, models that have not yet been finalized and are still in the prototype stage are not necessarily unreliable. ?There are not only technical factors, but also the confidence of users, that is, the instructors and students of the flight academy, in the new model. This is especially important for flying formations. As a person from the military industry system, Chang Haonan is well suited to give this confidence. ?So after thinking for a while, he answered: JJ-9 is actually a product spawned by the No. 10 Project technology verification project, and its degree of completion is inherently high. "I personally participated in the overall aerodynamic design of this aircraft. Based on the J-7, the rear cockpit was raised, the large delta wing was replaced with a double delta wing with large rims, and the air inlet was also modified. The DSI air inlet arranged on both ribs has been specially optimized for subsonic flight conditions, and the controllable angle of attack and anti-stall spin capabilities have been qualitatively improved. "The power of the aircraft directly uses the mature turbojet 14B, which is also the power of the J-8C, J-7F and Persian F4EC. As for the performance of this engine, I think Chief Zheng should have a very intuitive experience. " ?Chang Haonan looked at Zheng Liangqun and said with a slightly joking tone. The conference room was suddenly filled with a cheerful atmosphere. Compared to the embankment operation, the general situation of the bat hunting operation is still widely circulated within the army. After all, last year Zheng Liangqun gave more than a dozen reports to various aviation units on how to use radar-guided missiles for beyond-visual-range interception. How much of it will involve content about that battle? So, when Chang Haonan mentioned the J-8C, although this was a new model that had only been in service for a year and a half, everyone''s confidence was still built. After relaxing a little, Chang Haonan continued to add: In addition, if you are worried that the adaptation period after the replacement is too short, the academy can choose to install a special formation flight rangefinder on the purchased JJ-9. "This device can give the distance of up to four aircraft above, below, left, and right in the front hemisphere, accurate to centimeters. It is very practical for large-density formations. It was originally designed for the August 1st Performance Team, but if there is demand, any user can choose "And one good thing is that because of its small size, it doesn''t take up too much space like a radar. In other words, even if this rangefinder is installed, you can still choose the nose strips on the side of the radome to put the aircraft''s Increasing the controllable angle of attack to above 90 is almost equivalent to not entering a high angle of attack stall. "90 degrees?" ?This number almost made Qi Litong choke on his own saliva. Old aircraft like the JJ-5 may not even have a controllable angle of attack of 19, even the JJ-7 has a controllable angle of attack of just over 20. He couldn''t even imagine the concept of 90 controllability. Hmm lets give it a conservative estimate. Chang Haonan said and touched his chin: The test pilots at Guizhou Airlines have actually pulled it to a larger angle, but under normal use there is no need to go to such an extreme, 90 is enough. ?Just a few words have already made everyone at the flight academy have full expectations for this new model that they have not yet seen. Once the exaggerated performance mentioned by Chang Haonan is confirmed, this expectation will turn into trust in the aircraft. Thenin that case, we will tentatively plan to use advanced trainer aircraft for formation. Zheng Liangqun said seriously: During this period, you will use the JJ-7 for adaptive training first. When I go back, I will report to my superiors and include a batch of six J-Jiao-9 in the special budget of the 9910 project and deliver them as soon as possible! The answer to him was naturally a neat and excited voice: Yes! Guaranteed to complete the task! (End of this chapter) Chapter 593 Let the country’s third-generation aircraft be paraded on board! Chapter 593: Let the third-generation aircraft produced in China conduct a military parade! After the concise and concise meeting, Zheng Liangqun packed up his things, walked next to Chang Haonan, and asked in a low voice: Comrade Haonan, we have arranged a dinner party tonight, why dont you come and join us? I will not participate in the dinner party. The latter stood up and waved his hand: "I finally took a vacation this time, but I didn''t have much time before I was pulled over for a meeting. I haven''t even met my sister yet...Besides, it was a coincidence that I appeared here, so I won''t bother you to make additional arrangements." At this point, he seemed to suddenly remember something, so he stopped preparing to leave, changed the subject, and asked in a low voice: By the way, would it be inconvenient for you to reveal the air formation of Project 9910? What are the overall arrangements? At this time, at Zheng Liangquns signal, others had already left the conference room one after another, leaving only the two of them nearby. Its not inconvenient for you, but... Zheng Liangqun originally wanted to tell him not to tell anyone else, but after thinking about it, he felt that although Chang Haonan looked young, he was probably at a higher level than himself in terms of confidentiality, so it was completely unnecessary to say this. So he simply answered directly: "Actually, because the aviation industry has developed so fast in the past two years,... some details of the air formation have not yet been fully determined." Zheng Liangqun finished speaking in one breath, then picked up the cup and drank the cold tea in one gulp. Further on, the fifth team is a light fighter wedge team, with a total of 4 groups of 20 J-7Es. The sixth team is an interceptor echelon, with 3 groups of our division with a total of 12 J-8Cs. It has also been decided. Zheng Liangqun, who had just swallowed the water, nodded: Yes, 3 groups of 15 helicopter wedges, a mixed formation of Z-9s from Army Aviation and Hainan Airlines. In this plan, you have added many models in the prototype stage, so you are very determined... In addition, in the past ten years, our country has indeed suffered too much. From the perspective of enhancing national defense self-confidence, superiors have also slightly relaxed the standards for equipment selected for the military parade. "But hasn''t the situation changed in the past two years? Since the second-class accident of the J-8C prototype the year before last, there has been no major accident at the flight test center for almost two years, even worse than the situation in the combat troops. good." ?Chang Haonan rubbed his chin and thought. Zheng Liangqun also stood up and straightened his clothes: ?Chang Haonan briefly calculated the progress of the project at hand. "The fourth one behind is tentatively planned to be the fighter-bomber arrow fleet of the Naval Air Force, but it has not yet been determined whether it will be a group of 6 aircraft with the old J-7 aircraft, or a group of 4 aircraft with the J-7A aircraft that made its first flight last month. Fleet, we still need to observe the stability of the new improved model. "The seventh and eighth are both tentatively determined to be third-generation fighter echelons. There are currently two alternatives. One is to separate 12 Su-27SKs and 4 Su-27UBKs into two echelons. The second is, if domestically produced If the models can be available in time, we can consider putting all 16 imported models into the seventh echelon, and then mix the domestic J-11 and J-10 into the eighth echelon. Chang Haonan remembered that the other party said before that the training aircraft echelon is the last "fixed wing" formation, which means that there are things behind it that are not fixed wing. The last 12th one is a helicopter? The tenth is the transport aircraft echelon, which has been determined a long time ago, and the eleventh is the training aircraft echelon we just talked about. "Leave it in the past...I definitely wouldn''t dare to do it. If something happens, I will become a sinner of the country." It is normal to bring out equipment and even models that are under development during the military parade. However, the situation of air formations is different from that of ground formations. In order to ensure safety, mature equipment is generally preferred. ?For example, the Attack 11 concept aircraft at the 70th anniversary military parade was carried on a pallet truck for review (in fact, the aircraft had not even made its first flight at that time). "It is currently confirmed that there are a total of twelve aerial echelons. The first is the lead aircraft wedge team composed of the August 1st Aerobatic Team, the second is the bomber wedge team composed of H-6, and the third is the H-6 and H-6 "The J-8D refueling aircraft wedge formation, the aircraft types, order, arrangement and review units of these three formations have been finalized." "The ninth one is a special aircraft. It has not yet been decided whether to mix the Yun-8J and the Yun-8X into a three-plane wedge team, or form three JH-7s. As for the second option, the main problem is that this aircraft looks similar to The previous fighter-bombers are almost the same, which makes them prone to aesthetic fatigue. Or use some special means. I feel that if the turbofan 10 progresses smoothly enough, it should still have time to be installed on the J-11 and J-10. ??Although it is certainly impossible to detect the difference between domestically produced engines and Russian-made engines without a closer look, if a fully domestically produced third-generation aircraft can appear at the National Day military parade, even if there are only four or five prototypes, the meaning will be completely different. Since investment in the aviation field cannot recover its cost economically in a short period of time, this unusual "boost" achievement can be regarded as another way of providing positive feedback.????This has also been Chang Haonan''s logic. Superiors are also human beings, and they also need confidence to prove the correctness of their decisions. Of course, he can use words such as foresight or foresight to explain the rationality of long-term investment with a slow return cycle, but in any case, it is not as efficient as giving positive feedback directly. ?Of course, thinking about it, Chang Haonan would not have opened the champagne before halftime at this time and directly told Zheng Liangqun his inner timetable. It would be better to give them a surprise when it is actually installed and tested. ?The group of people parted at the entrance of the office building. Chang Haonan and Zhang Jiujiang, who had just been waiting back in the office, went to the student living area. The others naturally went directly to the college''s guest house. ??Looking at the backs of Chang Haonan and Zhang Jiujiang getting into the car and leaving, Qi Litong came to Zhu Caiyan, the director of academic affairs, and whispered: You can find time tomorrow to ask Director Zhang Jiujiang who Mr. Changs sister is. At the current situation, Zhu Caiyan certainly knew what his dean meant: Speaking of this, I remember that among the female pilots we recruited this year, there was a girl named Chang. She was from Liao Province. Mr. Changs accent just now sounded like she was from Liao Province..." As the Dean of Academic Affairs, he is absolutely excellent in his job. ??Although this place is called a flight academy, it actually does not only major in flight, and the proportion of female students in other majors is not necessarily small compared with some engineering universities. It is actually not easy to be able to recall the situation of a newly admitted student in a short period of time. Qi Litong raised his eyebrows: It would be easier if it was really a female pilot student. ?Zhu Caiyan also took over the conversation at this time: Then Dean, do you need anything extra... But before he finished speaking, he was interrupted by Qi Litong waving his hand: "If it''s as you guessed, then those who can be selected to be female pilots in our academy will have good abilities, so don''t be too nosy at ordinary times and ask Director Zhang to focus on the study and training situation, and then report to Mr. Chang regularly. Just report it over there and let him know that we take it seriously." Also, especially people other than those present today cannot know about this relationship, otherwise it will be an extra burden for Mr. Chang and Mr. Changs sister. At this point, Qi Litong paused for a moment and adjusted the big-brimmed hat on his head: As long as the critical moment comes, a little more support is enough. Excessive force is not a good thing. Zheng Liangqun walked at the front of a group of people. As a pilot, he was sharp enough to hear the conversation between Qi Litong and Zhu Caiyan. But he did not interfere. In fact, his son Zheng Hui also happens to be a pilot student at this school. It''s just that she hides it better than Chang Haonan''s sister... On the other side, Chang Haonan also knew that after today''s incident, his relationship with Chang Jiayao would definitely be unstoppable. Fortunately, the people who knew just now were all members of the school leadership team, and at most Zheng Liangqun and Zhang Jiujiang could be added. Director Zhang, you must be more strict with my sisters study and training, otherwise you will be harming her and me... In one sentence, the style of this parent comes up immediately. ?Although Zhang Jiujiang is still in the dark about Chang Haonan''s current specific identity, he has realized that he is probably not just a "scientific researcher who has participated in several projects", so he nodded quickly: "Don''t worry, I know for sure that flight safety is no small matter. In terms of training, even if the King of Heaven comes, we must follow our teaching requirements!" (End of this chapter) Chapter 594 "Refreshed" NH90 (4K) Chapter 594 Refreshed NH90 (4K) Zhang Jiujiangs words actually contain two meanings. First, I will definitely have high standards and strict requirements in training and learning, and I will be merciless; Secondly, I will definitely take care of things other than these two items. Thats good, thats good. Chang Haonan nodded and replied with satisfaction: Strict teachers produce great disciples, so my sister-in-law asked Instructor Zhang... ??He could naturally hear the implication of what Zhang Jiujiang just said, but he didn''t say anything nonsense like that he didn''t need to be taken care of - ??It would have been fine if he had just met Chang Jiayao like a normal student parent, but now after what happened just now, it is no longer possible to keep a low profile. ?Whether he said this or not, it was impossible for the school to be completely indifferent to Chang Jiayao. In this case, saying so many words would seem pretentious. For a while, neither of them spoke again. And Chang Haonan couldn''t rush to explain on his own. Compared to the boring and boring teaching building or office building we just saw, this building looks more modern. This is our colleges new activity center. It is currently the only indoor activity venue that is open to students for a long time after the afternoon classes. It also has a good restaurant inside. As he just said, Chang Haonan only waited in the hall for about five minutes when he saw two female trainees with short hair and wearing air force spring and autumn uniforms walking up the steps quickly and pushing the door in from the outside. . No matter how funny it is, they will never laugh. Are you feeling overwhelmed by the burden of work? Chang Haonan said and walked into the activity center. Unless you can''t help it. After all, Chang Jiayao is still a girl at heart, and she has only been in school for less than a year. After seeing Chang Haonan, whom she had not seen for more than a year, she ran straight over without caring about her image or regulations. Chang Haonan rolled his eyes helplessly. Chang Jiayao came to Chang Haonan. Fortunately, she still had her last bit of sense and did not jump directly into the latter''s arms. "Brother, I thought you had forgotten me..." ?At least part of the facade in the middle of the building has a glass curtain wall, which already looks a bit like the 21st century. I wont disturb your brother and sisters communication. When you need the car again later, just go to the service desk and call my office. But years of discipline told him that he shouldn''t ask this kind of thing. Thats because youve grown taller during this period. You used to have to raise your head to look at me, but now you just have to look flat... ?So, in the silence along the way, the jeep slowly stopped in front of a building. Well, Ill bother Director Zhang. "elder brother!" ?Zhang Jiujiang got out of the car behind Chang Haonan and introduced at the same time: ?This thing is a bit gratuitous, but Chang Haonan just thought that the other party cared about him, so he answered without much thought: Logically speaking, even if the faces of brothers and sisters who have lived together for more than ten years cannot be clearly seen, they can be easily identified from details such as body shape and posture. I feel like youve become shorter, brother ??Due to the heavy amount of exercise after entering the flight academy, and the fact that Chang Jiayao is only 18 years old now, she has grown to be almost as tall as Chang Haonan. Zhang Jiujiang was naturally curious about Chang Haonan''s current status and identity. It was still dinner time, and there were not many people in the hall, so his voice almost immediately attracted the attention of Chang Jiayao and the other two. ??With this stance, which was similar to a charge, if he hadn''t known in advance that the other party was the biological sister of his leader, Zhu Yadan would have even pulled out his gun. While talking, Chang Haonan and Zhu Yadan had already followed Zhang Jiujiang up the steps to the gate of the activity center. But the training in the military academy can make a person undergo earth-shaking changes in this aspect. Zhang Jiujiang has arranged things very appropriately. ?Zhu Yadan in the back covered her forehead with one hand, obviously having a hard time holding back her laughter. Therefore, Chang Haonan didn''t finally confirm that the one walking in front was his sister until he recognized the other person''s appearance. The latter quickly took two steps forward and helped Chang Haonan open the glass door: While I was waiting in the office just now, I called their life counselor. Mr. Chang, please wait in the lobby for a while. As guards, they have received strict training. A military academy, while belonging to the army, is also a university, so its schedule and management are not as strict as those of combat units. It seems that he received the message from the instructor after class and rushed directly from the teaching area. Chang Jiayao did not continue to stick it on, but looked up and down, and then asked in a hesitant tone: Brother...have you been under a lot of pressure lately? Jia Yao! Until now, Chang Haonan had nothing to do with his younger sister, so he could only quietly take a half-step back and put some distance between her and her sister. How could I have forgotten you Okay, I have a lot of projects on hand, why do you ask this suddenly? For a moment, he had some doubts about whether instructor Zhang Jiujiang could train his stupid sister into a qualified pilot. After a brief moment of playing tricks, Chang Jiayao finally remembered that they were not the only two brothers and sisters present, and quickly gathered the girl who had just been behind her: Brother, this is my roommate, her name is Liu Yang. She has very good academic performance. I owe my review of several courses to her Obviously, at this time, she had not realized that her brother had just asked the instructor to be "tough and strict" with her, so she chatted about study-related topics without any psychological burden. "Hello." Liu Yang greeted Chang Haonan timidly. The accent of Henan Province. No wonder he is the king of roll kings. Hello, thank you for helping our Chang Jiayao with her studies. Chang Haonan said as he took out a few paper bags from the bag he carried with him: "I came here from Shengjing this time and didn''t have time to buy any gifts. You can take these snacks back to the dormitory and share them..." In fact, Chang Haonan feels that Liu Yang is most likely to be China''s first female astronaut in the future. ?Although this name is really common, if you calculate the age, it should be about the same. ??And the place of origin and education status are also consistent. ??While Liu Yang was still hesitating, Chang Jiayao had already received it in his hand with a smile on his face: Thank you, bro~ The latter will not suffer any loss since he is a sweet talker anyway. After collecting the gifts, Chang Jiayao turned her eyes to Zhu Yadan, who had been following Chang Haonan just now: Um, brother, is this...sister or...brother? In fact, when she first saw Zhu Yadan just now, her first reaction was - ????What a handsome little brother! But she soon realized that this might not be the little brother... I was very confused about this for a moment. So far, Chang Jiayao still doesnt know what kind of job Chang Haonan is engaged in. And the latter seemed to have no intention of letting her know. Therefore, after assessing the situation, Zhu Yadan took the initiative to introduce himself: My name is Zhu Yadan, Mr. Changs assistant. ?Speaking like this still reveals some feminine characteristics, so there is no need to answer directly about one''s gender. Ah, Im sorry, Sister Yadan...you are so heroic... ?Chang Jiayao continues to travel the world with her sweet words. "Okay, don''t be poor, let''s go, I see there is a small stove in this activity center, I will take you two to eat..." Just when Chang Haonan finally saw his sister. Beijing, Institute of Computing Technology, Chinese Academy of Sciences. ?Liu Hongbo is in front of a supercomputing console, waiting for the last few results of this round of calculations to be generated. ?Similar to the situation when Chang Haonan came here on a business trip two years ago, the reason why he is here is because the 602 Institute in Bingcheng does not have excellent computing conditions, so he had to ask for help from foreign aid. Its just that like Chang Haonan, he didnt happen to meet a big guy in the algorithm field like Xu Yang to help solve the problem, so basically everything had to be done by himself. Behind him, stood another young man who looked to be about the same age as Chang Haonan. ?Wang Zhilin, a young technician who was the first to discover problems with the traditional system of Dolphin helicopters during the calculation process. ?Of course, this person is relatively "normal", and no one can solve all the problems easily. ??However, Liu Hongbo found that he had a good foundation, so he was specially brought here as an assistant this time. On another level, of course. ?Only by dealing with people like Wang Zhilin a lot, can the former be convinced that it is not that he is too good, but that his junior brother is too inappropriate... Teacher Liu, I still cant figure it out. When you were calculating the design of the entire transmission system, why did you add an additional precise limitation on the performance of the bearing set? Looking at the calculation section in front of him and not knowing when the results would be available, Wang Zhilin mustered up the courage and asked Liu Hongbo next to him: In principle, if this restriction is removed, our calculation amount can be reduced by about 40%. Or, if you are worried that the performance of this bearing group exceeds the standard, you can just add an upper limit. There is no need to limit this area to death..." Is this... Liu Hongbo rolled his eyes slightly. I dont know what he wants to say. This is what Mr. Chang specifically emphasized when assigning tasks before. The latter said at that time that this gear set must use the performance indicators he gave, without any changes. Other parts can be given a higher degree of freedom. But in order to ensure his image, Liu Hongbo still gave an explanation after a period of brainstorming: "It''s because after connecting with the European side, we specifically considered their convenience in the parts procurement process. This bearing set is the core component of the transmission system, which determines the upper limit of what the entire equipment can withstand, so we decided to make a comparison first. safe." In fact, this explanation was speculated by Liu Hongbo himself and seems to be the most reasonable possibility. Hence, it is not difficult to persuade others. Wang Zhilins eyes lit up after hearing this: This is what you said before. When we design, we cant just think about whether we are comfortable on paper, but we must also try our best to take care of the production and processing process? Thats great, Teacher Liu! ??A round of rainbow farts actually made Liu Hongbo a little embarrassed. He touched his nose and nodded: Thats right, thats what happened. "But this is not what I said, it was said by Mr. Chang. He often emphasizes this point when working on projects. A good designer should not only calculate what is on paper, but also consider how his design should be done. Landing." ?Wang Zhilin looked like he suddenly understood, and then asked: By the way, Teacher Liu, Ive seen Mr. Chang from a distance before, and he seems to be about the same age as me. Why is he so powerful at such a young age? Liu Hongbos people are numb Why? Yeah, why? ?He really wants to know too? Fortunately, this awkward atmosphere did not last long. The last few numbers quickly appeared at the bottom of the calculation log. ? Liu Hongbo breathed a sigh of relief when he saw this: Write down the numbers, and immediately calibrate the overall performance and process parameters of the entire transmission system, and then send this improvement plan to the Europeans ?According to the agreement at the time, China should be responsible for the technical solutions for the main rotor, front fuselage and transmission system. ?However, considering that the NH90 was a semi-finished project that even had prototypes participating in test flights, Chang Haonan directly followed his own general habit of doing projects and asked Liu Hongbo to prepare and send the most critical transmission system plan first. In this way, the two prototypes that are already considered scrapped can be used to test the transmission system in advance. Firstly, it is to maximize the residual value, and secondly, it can also save project time. Otherwise, if we wait for these three parts to be completed and then test them separately in Europe, it will take at least a few extra months of work. ? This operation of squeezing efficiency to the extreme almost burned out the CPU of Eurocopter at the beginning. After hesitating for several days, I finally realized the huge advantages compared to the traditional solution and agreed. ?Of course, Chang Haonan actually had a third-level purpose, but he didn''t tell anyone explicitly. The design of this transmission system is of course no problem. ?However, considering the special performance calibration of the core bearing group, Europeans will inevitably suffer a loss during the test. ??If they were careful enough and discovered the problem in time, it should just be a cracked bearing or something similar. If it is not done in time, it will most likely eventually lead to overheating of the transmission system, or even direct irreversible damage. If you are particularly aggressive, there is even a possibility of a plane crash. In short, the aircraft testing this transmission system will definitely not be good. In this case, using the two aircraft in the scrapped case can at least reduce some losses. Otherwise, if the newly built new prototype crashes directly due to transmission system problems, Eurocopter will be severely hit and suspend the project, which will be a complete loss. Teacher Liu, everything is calibrated, please take a look! ?A few hours later, Wang Zhilin raised his head again, pointed at the electronic drawings on the computer screen and said to Liu Hongbo. (End of this chapter) Chapter 595 What a coincidence, the Japanese happen to have the zeros we need to use Chapter 595 What a coincidence, the Japanese happen to have the parts we need ?After several inspections to confirm that the parameters of the transmission system were calibrated correctly, the relevant design plans were quickly sent by human express to the Eurocopter headquarters R&D center in Marseille, a city in southern France. ?Of course, a huge amount of design documents and related drawings, even after they have been digitized, cannot be carried by one person in a bag. Whats more, confidentiality and safety issues must be taken into consideration when traveling abroad for business. So, Bingfei Group directly sent a delegation. The leader of the team is Wang Xibo, deputy director of the design office of the 602 Research Institute, which is responsible for the research and development of helicopter avionics systems. Compared with fixed-wing aircraft, helicopters have one more control axis for flight, so the avionics system, especially the flight control part, is far more complex than the former. On the other hand, helicopters, except for some special models, are actually not considered "high-value materials" in the force establishment sequence. ?Transport helicopters are equivalent to flying trucks, while armed helicopters are equivalent to flying tanks or infantry fighting vehicles. The loss tolerance for helicopters is also much higher than for fixed-wing aircraft. Hello, its nice to see you again so soon. ?So, after some rational thinking, Pierre felt that China''s actions made it seem more real. ?Similar to the situation when Le Maire arrived in China last time, Eurocopter also sent a special convoy to greet Wang Xibo and his party who were delivering documents. The combination of these two reasons led to the fact that until the late 1990s, the vast majority of helicopters on the market were still using traditional hydraulic flight control systems, which posed considerable risks in terms of safety and response speed. ? With the opportunity of the Z-12 project, I became familiar with the design logic of helicopter fly-by-wire flight control. Dont ask, the question is about independent research and development. The question is because I thought NH90 looked good, so I built a similar one later. ??Wang Xibo also went abroad for the first time. Just like Le Maire, who visited China for the first time before, he also observed the street scene outside the window intentionally or unintentionally. In fact, the former was a bit surprised at first that Bingfei Group was able to come up with a complete transmission system solution (strictly speaking, two sets including AS365) in such a short period of time. ?This is another reason why Bingfei Group chose to send Wang Xibo to lead the team to France ? And this kind of problem is indeed difficult for those who dont know it, and its not difficult for those who know it. If you take the wrong route, the more you do, the more mistakes you will make, but on the right route, it may be a smooth journey. Lets help each other. I hope our cooperation will go well. ?Practically speaking, the first two prototypes that have been put into flight test have been relatively successful in verification at the flight control level despite many problems. ?After a few rounds of fruitless greetings, the group got into several buses in the convoy. ? Its just that Le Maire himself is based in Paris and is no longer from Eurocopter, so the person who came forward this time was Pierre, who is currently in charge of the NH90 project. ??The leaders of both parties shook hands, and Pierre also patted Wang Xibo warmly on the shoulder. ??The NH90 was the first model to attempt to use fly-by-wire flight control on a helicopter and only use the hydraulic system as a backup. Of course, the reason for the emergence of such a strange brain circuit is largely because he has been mentally and physically exhausted by this project recently. It is also a methodological issue. ?But if you think about it carefully, during that negotiation, the Chinese people believed that their Eurocopter Groups design route for the transmission system was flawed. This means that the cost is very tight. ?Before landing in Marseille, he actually had some expectations and fantasies about the social conditions of a developed European country like France. Now that he is in it, as the largest city in southern France, Marseille is so prosperous that he has never seen it before. Wang Xibo lamented that it was indeed a well-established developed country, but also wondered with envy whether China''s big cities could one day be built to this level. ?However, before he could finish his emotion, he noticed a commotion on the sidewalk outside the window. ?It seemed that someone had robbed something and then ran away. Someone was chasing him, causing people around him to flip over. Wang Xibo was stunned when he saw this scene, then he laughed at himself for what he had just thought, and finally rested his head on the seat pillow again, closed his eyes and rested. As the motorcade shuttled back and forth between the cities, everyone soon arrived at the Eurocopter headquarters on the outskirts of Marseille. Mr. Wang, please. ?Under the guidance of Pierre, the group of people got out of the car one after another and walked into the company park with no end in sight. ??Compared to the more glamorous urban areas just outside, although the liveliness here is much lower, the beautiful natural environment and the high-tech buildings make it feel more like a future city in a developed country. Not to mention anything else, the building of this institute alone is much more spectacular than the one of 602 Institute. For the technicians who came here, this is a more enviable place than the bustling lights of the city. This is the kind of research institution that can be considered... ?Wang Xibo rubbed his nose and made up his mind: When the group has money in the future, it will have to tidy up the environment in the compound... ?Thinking this way, of course he couldn''t show anything anymore, so he walked into the R&D center while his mind was running fast. The design information of the NH90 helicopter transmission system is a hard drive installed in several password boxes. There is no paper version. As to why not use a bigger suitcase Because large luggage needs to be checked in, and this process is obviously very risky. Whether it is the risk of information leakage or the risk of equipment damage due to violent transportation. Eurocopter has already arranged the handover ceremony. ? A Chinese-French bilingual blue background with white text banner is hung directly above the lobby of the R&D center. Below it is a row of tables and chairs, and a promotional board behind it. Be low-key, but there must be no shortage of processes that need to be followed. ?After a brief opening ceremony, Wang Xibo and Pierre signed their names under the document, and at the same time symbolically handed over their password boxes to each other - According to the agreement, Eurocopter Group will provide design information for the helicopter avionics system. ?In addition, Wang Xibo and others will work here with their European colleagues for a period of time. The superficial reason is that since they are already in in-depth cooperation, just exchanging design data is definitely not enough, and more people need to be left to exchange some experiences. ?The deeper reason, which even Wang Xibo himself is not entirely clear about, is that Chang Haonan needs someone from China in France during this period. The first is to convey the situation back to the country in real time so that he can be prepared to respond at any time. Secondly, once the two prototypes malfunctioned during the test, having someone present would be able to clear the air immediately and place the blame firmly on the NSK Group. Therefore, after completing the data handover ceremony, Wang Xibo divided the people he led into two teams. One team went to inspect the avionics design of the NH90, and the other team was responsible for submitting the transmission system design to Eurocopter''s technology. The staff made it clear. Pierre originally thought about whether he should arrange a dinner to reflect their old European style and avoid embarrassing Lanxi, but seeing that his Chinese colleagues were so eager to get into work, he put the matter aside went. After all, he was in a hurry himself. ?The two NH90 prototypes are currently grounded, and the design team has taken a tough stance in revising the cooperation plans with several partner countries. The pressure they are currently facing is indeed considerable. Fortunately, the information is all digital and organized in advance, which saves both parties a lot of non-technical trouble. The Chinese colleagues are very sincere ?Pierre stared at the computer screen in front of him and sighed inwardly: Look at this neat classification, its all for our efficiency. We hand over the information in the morning and can start work that afternoon ?Of course he would not know this. This was because Chang Haonan was afraid that the efficiency of the French would be too low, which would affect his own plan. He only regarded it as a good move from China. As professionals, it only took his team about a week to basically read the overall design plan, and found that there was a huge difference between the design provided by Huaxia and its own old plan. It turns out that the design here achieves compatibility between two engines with different performance As well as the transmission part to the tail rotor, the power distribution is much more reasonable, and the transmission loss can be reduced by 5%..." Can such a narrow optimization range really allow them to find the optimal design point? It seems that China has a rich talent pool in the field of multi-objective optimization... Of course, just like a person who has just seen the answer to a complex exercise, although he can understand it, it will take a certain amount of time or even the guidance of others to truly understand it and integrate it for his own use. Mr. Wang, I see that there are some parts with strange performance calibration in this design plan ?After the initial shock, Pierre quickly discovered several parts that made obsessive-compulsive disorder more uncomfortable. Not only is it a problem of mental shock, but also a large number of parts with unused parts numbers, which means that they may have to find a new group of suppliers before entering mass production. "There is nothing you can do about it. The performance characteristics of the two engines you plan to use are very different. It is already very difficult to find such optimization points, especially the bearing set of the main reducer you just mentioned. , even a slight deviation will not leave enough safety margin. ?Wang Xibos answer was flawless because he thought so too. Okay, then Ill have to let the marketing department contact the suppliers again ?Hearing what Wang Xibo said, Pierre could only admit it. It is better to be able to solve it than not to be able to solve it. If this is not possible, you can even consider finding a bearing company to customize a batch of products. In that case, the supply cycle may be very long. ?However, the actual situation seemed to be much smoother than Pierre imagined. ??Just that night after he assigned the task to the marketing department, he received a call back from the other party: Pierre, for those new parts you requested from suppliers, we... found them in stock. "Spot goods?" ?For a moment, Pierre felt that he might be blessed by God, and his voice even trembled a little: Do all the parameters meet the requirements? This time the standards are very strict and there cannot be any mistakes. Full compliance with the requirements. The person on the other end of the phone replied: "And...if it wasn''t for a few hours of work, I would have thought that this bearing was specially customized by someone, and it is exactly the same as the request you sent in the afternoon." So, which company can offer the product right away? NSK Group, a Japanese company. ?Pierre was silent for a few seconds. He also felt that it seemed a bit too coincidental. ??But even if I exhaust my lifes imagination, I really cant think of any possibility other than coincidence, so I have no choice but to put the receiver to my ear again: Contact them as soon as possible! (End of this chapter) Chapter 596 The engines of Turbofan 10 and J-10 match Chapter 596 Engine Variation Matching between Turbofan 10 and J-10 Europeans, especially Southern Europeans, naturally cannot have high expectations for their work efficiency. ???Although for the leader Pierre, the current situation of the NH90 project is close to imminent, so his subjective initiative is full, and he can''t wait to drag Wang Xibo to have fun together every day. But other technicians under his command did not share this sense of urgency. After all, even if the sky falls, there will be someone high to support it, and it has little to do with the workers below. As a long-established power in Western Europe, France last faced the danger of national subjugation and annihilation 50 years ago, and now it does not have the same sense of urgency that the Chinese people face in this era. For most people, the Cold War is over, cant I still enjoy it? ??Moreover, on the other hand, Wang Xibo flew thousands of miles from Ice City to Marseille not specifically to serve Pierre. ??As the director of the research office responsible for avionics design of Bingcheng Aircraft Industry Group, his main focus must still be on learning the fly-by-wire flight control technology of NH90. ?Helping Pierre and the others digest and absorb the design plan brought by China can only be regarded as a normal performance of the contract. A dozen core members responsible for the overall design of the turbofan 10 and the compressor section were standing in front of the compressor test bench, looking at the report that had just been compiled by the operators. But I have thought about it and thought about it. When the miracle actually happened before his eyes, he still inevitably felt a sense of unreality. Its simply a divine calculation... After all, it has to be Mr. Chang. The difference between the actual experimental results and the theoretical value of the design plan is only 3.6, which is less than 5. Its simply When determining the design specifications of the turbofan 10, Chang Haonan set the total boost ratio within the range of 25-25.5 to ensure that both installation targets can achieve a good balance between subsonic and supersonic performance. balance. "Such a good result...can''t be entirely attributed to me." It will probably take several months to build a new transmission system and then install it on one of the prototypes. Haiyide looked at the boost ratio of 25.16 in the results column with a tone of half admiration and half disbelief. But not much. ?At the same time that Wang Xibo was leading the team to carry out work in France, Chang Haonan had also ended his short vacation and returned to Shengjing. Hearing Hai Yide''s words of praise which were somewhat unflattering, Chang Haonan turned his eyes from the report in his hand to the compressor on the test stand and answered. ?Especially the fan and high-pressure compressor parts, it also involves the verification of his idea of ??using blade separation flow active control technology to accurately utilize the vortex structure within the diffuser cascade. In fact, this sentence definitely comes from the heart. ??If he were to use his current level and combine it with the capabilities of computers in this era, then the design would definitely be possible, but if there was a slight deviation, several corrections would definitely be inevitable. Although the component-level testing of the turbofan 10 went smoothly, it was still a key node of the project. As the chief designer, it was not easy for him to be the hands-off boss all the time. ?During the previous theoretical calculation and design stage, Haiyide also thought about whether, with Chang Haonan''s extraordinary level, it would be possible to reduce the time required for this process, or even achieve it. Chang Haonan naturally saw this gratifying result, which means that the time spent in component-level testing can be further shortened. Hence, after receiving this new batch of technical information, the NH90 project is indeed advancing faster than before. It often requires several or even dozens of iterative adjustments to truly achieve the desired performance. But normally, there will still be some differences between the location of the design point and the actual product. The ability to obtain a result of 25.16 in one go when the design point is 25.25, after all, relies on the function of the system. ?However, when other people hear this sentence, they naturally think that Chang Haonan means that other people here have also made significant contributions. ?So they all said that they were only doing their jobs under the leadership of Mr. Chang, and they did not dare to take advantage of others. ?This misunderstanding did no harm to Chang Haonan, and it was impossible for him to explain it. He just smiled and moved the topic to another place: The testing of the remaining components must be accelerated, especially the combustion chamber and turbine. These two hot-end core subsystems, together with the high-pressure compressor, basically determine the key core performance characteristics of the engine. With the performance characteristics, especially the air intake characteristics, I can optimize the design of the aircraft based on the attributes of the engine. "The design plan of the aircraft?" Hearing Chang Haonan suddenly turn to mentioning the outflow of the aircraft, that is, the aerodynamic design part, Haiyide was stunned, and he couldn''t follow the train of thought: You mean In the past, our aero engines were completely or partially imitated, and many of the performance parameters were not determined by ourselves. Chang Haonan put the test results on the table next to him, turned around and walked out and said: Coupled with the fact that the design level and manufacturing level are not very good, the specific performance of the built engine may be unknown before it is installed. So when it comes to engine-transformer matching, we mainly focus on broadening the adaptability range of the intake duct, so as to match the unknown engine performance indicators as much as possible. Hearing this, several people, including Haiyide, showed some embarrassed expressions or actions. After all, the problem Chang Haonan mentioned does exist. The long-term "heart disease" in the field of aviation power has indeed put a lot of intensity on the overall design department. Although it is true that there are some engine models whose development was suspended due to the cancellation of the aircraft project, in fact, the reverse situation is more common, that is, the aircraft models died due to insufficient engine quality. It is a yes if you have trained with weights. Of course, Chang Haonan obviously did not want to emphasize this, so after a brief pause, he immediately changed the subject; However, now that we have the first engine model that is completely independently developed and has independent intellectual property rights, we can go towards improving the matching accuracy at the level of aircraft engine-transformer matching. This is something that I and the 611 Institute have already agreed on. ? What Chang Haonan is talking about is naturally the second phase prototype of the J-10 that will replace the DSI air inlet and make overall improvements to the aerodynamic design Although the turbofan 10 has two main installation targets, the J-11''s adjustable inlet has an extremely wide range of application. As a heavy-duty fighter, it weighs two to three hundred kilograms, so there is no need to worry too much about engine-transformer matching. effort. "Right" After hearing Chang Haonans answer, Hai Yide patted his head gently: After this period of time, I almost forgot that Mr. Chang was originally engaged in aircraft design... Then you mean that the current design of Project No. 10 still needs to be changed? At the moment, the people next to Chang Haonan are all people in the field of aviation design. Although they have not separated yet, they are still connected to several general offices. Especially the 611 school is located in Chengdu, more than 2,000 kilometers away. So it is normal that they are not very clear about Chang Haonan''s plan for the J-10. "Of course." Chang Haonan immediately responded in the affirmative, and then asked: You should know about Guihangs new model that first flew last year, the JJ-9, right? Haiyide nodded: Of course I know this. The head office issued a special feature at the end of last year to introduce their advanced examples of using this model to overcome difficult stages and achieve a turnaround from losses to profits. I plan to replace the J-10 with a DSI air inlet like the J-9, which can reduce some weight and is very helpful for the performance of the aircraft. We are all from the aviation system, and the confidentiality authority is high enough, so there is nothing to hide in this matter. As a fighter jet, the J-10 has to face far more complex flight conditions than the J-9, so the requirements for air inlet design will be higher. Peoples general impression is that DSI inlets are not good at high-speed flight. In fact, this is a complete misunderstanding. ? DSI air intake is only optimized in a narrow range. A typical example is the scramjet engine on many hypersonic weapons, which also uses the DSI inlet. ? Its just that there are still hundreds of millions of differences between missiles and aircraft. The former can rely on boosters to get through this stage of low intake efficiency. But for ordinary aircraft, it may not be used in high-speed operating conditions, but it can always be used in low-speed operating conditions, so there is no option of "optimizing only high speeds but not low speeds". ?But having said that, if the adaptability range of the inlet is wide enough, then it is not impossible to expand the advantageous working range to the transonic range... (End of this chapter) Chapter 597 Test flight F14 Chapter 597 Test Flight F14 At the same time, Factory 112, also in Shengjing, overhauled and upgraded its workshop. In fact, just a month and a half ago, this factory, which was recorded as 70# in the official archives, did not have an exclusive name Generally speaking, employees in the factory directly call it the assembly workshop. 42 years ago, China''s first self-produced jet aircraft "Zhong 0101" rolled off the assembly line here. After that, J-6, J-7, and J-8 series aircraft were also assembled here. ?However, with the last two J-8Ds in the order two years ago being delivered to the troops, the 70# factory was still unable to keep up with the pace of the new era. Because the supporting facilities are really old, and the 36-meter span that looked like a giant back then is no longer enough to handle the increasingly complex assembly process, the new J-8C and J-11 aircraft have been produced in three recent years. Final assembly was carried out in the newly built factory building. Shengfei Group also planned to remove it from the final assembly workshop sequence at the beginning of the year. However, the historical significance of the 70# factory building is really special, and it cannot be demolished casually. So its use after the production task is completed has been unresolved. He feels that with the gradual extension of the service life of future fighter jets and the continuous development of aviation technology, after flying like this for more than ten or twenty years, there will probably be more and more cases where new technologies will be used to extend the life of the aircraft. So, without rest, He Ming simply reported to the group''s board of directors and designated factory #70 as a workshop for overhauling and upgrading old models. Although the aircraft is not a Chinese aircraft, since it was modified in China, it must abide by the rules here. So, the Persians simply gave this aircraft a brand new codename, F14IC. The leaders of the group even planned to convert it into an aviation industry-themed museum, but in the end they gave up because it was located in the middle of the factory area and could not be opened to the public. ?Compared to the batch of F4s upgraded in Persia, the upgrades of these F14s are more thorough. Except for some core structural parts, they are basically equivalent to being reborn into a new aircraft. ?Although Persia does not have the ability to modify the F14 alone, they have indeed put in a lot of effort in the past to ensure the combat effectiveness of these aces. Therefore, the big red flower tied to the nose of the aircraft is definitely indispensable. It was naturally one of the batch of F14s sent by the Persians. ?As the door of the workshop was slowly raised, a huge fighter jet painted in blue camouflage paint slowly came to the apron area outside the workshop, pulled by a trailer. It wasnt until a few days ago that He Ming finally made a plan when he looked at the F14s parked in the corner and had been torn into pieces. Now its just a make-up ceremony. Today is a "good start" here. It would be a bit wasteful to occupy the production and assembly workshop. For a brand-new model that has never been touched before, under normal circumstances, it should not be possible to complete it and roll off the production line so quickly. ?However, the current situation of this business is rather special. It was pulled out at this time because it had completed overhaul, life extension and modernization upgrades, and was ready for test flight as a new model prototype. In fact, it only took less than two months from the time this batch of aircraft were delivered to the start of construction until they were fully completed. Since the individual conditions of each aircraft are different after long-term use, this kind of work cannot use the pulse production model, so the man-hours alone are not necessarily much less than building a new aircraft. In fact, this aircraft had been modified a few days ago and had even undergone a round of basic functional inspections. ? Even in the early 1990s, an attempt was made with the Russians to get the F14 to launch Russian-made weapons such as the R27. ?Although these efforts were not implemented in batches in the end, the relevant information was relatively well prepared and provided to China earlier than the first batch of aircraft. ?This allows Factory 112 to save most of the preparation work before modification, and can start work quickly after getting the aircraft. ? In addition, the modification equipment is all mature models. As an aircraft from the 1970s, the body materials are not too complicated, so it can achieve such high efficiency. The brief celebration ceremony attended by representatives of the two countries ended quickly. Immediately afterwards, the two test pilots Fu Guoxiang and Zhao Mengtian climbed into the front and rear cockpits of the aircraft respectively. Several electrical auxiliary vehicles also quickly came from different directions. The ground staff were slightly unfamiliar but still moved the cables coherently. and the inflatable tubes were connected to the aircraft respectively, and then various inspections before takeoff began. For Fu Guoxiang, who is sitting in the front seat and responsible for the main flight mission, this is definitely a quite novel experience. Although he has participated in test flight missions of more than a dozen different aircraft types in the past, he has never been exposed to an American aircraft with a variable sweep wing. Strictly speaking, Zhao Mengtian in the back seat was not a test pilot, but a Blue Army brigade pilot who was temporarily seconded from the Dingxin training base in order to familiarize himself with the F14 in advance. ??While the ground crew was busy, Fu Guoxiang lowered his head and checked the layout of the instruments and screens in front of him again. ?Of course, as an experienced test pilot, he could not just improvise. ? A week ago, Fu Guoxiang had printed out the appearance of the F14 cockpit in advance and posted it on the wall of his dormitory, practicing whenever he had time. But for test flight missions, no matter how cautious you are, you cannot be too cautious. Especially American aircraft have different instrument settings from Chinese/Soviet (Russian) aircraft. If you are not skilled enough, it is easy to make mistakes in the sky, causing big problems. Attention test pilots, perform maneuver checks. ??The voice of the old ground crew leader came over Fu Guoxiang''s radio. Rudder, left, right, okay. Aileron, counterclockwise, clockwise, good. The so-called movement check is to move the operating surfaces of the main wing horizontal tail and vertical tail, as well as the pylons and tail nozzles before taking off to see if they correspond to the operation feedback. To avoid wrong wiring, the execution action will be opposite to the input signal. ?This process is the first thing that aviation school students learn after getting on the plane, and it can be said that every pilot is familiar with it. But today is different from the past. Uhthe wing sweep angleis adjusted to the minimum. Obviously, this is the first time for the ground staff to study this program and they are not very proficient. The F14''s swept wing changes are linked to the flight control computer, but the pilot can still control them independently if he wants. Fu Guoxiang followed the instructions and pulled back the control lever of the swept wing forcefully. ?This overhaul and upgrade process did not make any changes to the F14''s wing action system and flight control system. Firstly, they are afraid that the construction period will be too long, and secondly, the Persian Air Force uses the F14 close to the interceptor aircraft. In fact, it rarely adjusts the swept wing angle frequently, so the remaining life of this part is also relatively long. Even so, after all, the aircraft has been completely dismantled and reassembled, so it still needs to be inspected. ?Although he should focus all his energy on the front at this time, he really couldn''t control his curiosity. He turned his head slightly and looked at the wings that were extending outward according to the movements of his hands. Its amazing Fu Guoxiang thought so. It is true that from an aviation technology perspective, variable-sweep wing technology would have lagged behind in 1998. But technology is technology, and the complex and sophisticated mechanical beauty contained in this structure is another matter. Even Fu Guoxiang was in a trance for a while. The reaction from the ground staff outside was similar. Although I had received training before, seeing this huge wing spread out like the wings of a raptor still had enough scene impact. After a period of time that was obviously longer than before, Fu Guoxiang heard the following operation instruction: Adjust the wing sweep angle to the maximum. With the hum of the hydraulic system working, the wings returned to the retracted state. At this time, the aircraft returned to a layout similar to a tailless delta wing. I have to say that the Americans were able to create such a thing in the 1970s, which is indeed... awesome. In the tower command center in the distance, He Ming put down the telescope in his hand and uttered a not very elegant word. ?Of course, the translator next to him polished it up a bit when paraphrasing it. Thats why we have kept these Tomcats as our main models until today, and even spent a lot of money to upgrade them. The Persian general next to him replied, but did not put down the telescope. After all, this is their plane, so they must be more attentive. ?While the two were talking, the F14 on the tarmac had already started its engine. ? Turbofan 9A uses an ejection nozzle with a relatively simple structure, so there is no need to additionally check the adjustment status of the tail nozzle. Unit 1401, prepare to begin taxiing. Fu Guoxiang''s voice sounded on the tower radio. ?At the same time, the ground crew in the distance has begun to remove the pipes and cables connected to the aircraft. Received, taxi allowed. ?Following the commander''s order, the huge fighter jet in the distance slightly raised its nose and began to move towards the takeoff runway. (End of this chapter) Chapter 598 We don’t have the strength to fly big bricks one day, right? Chapter 598 Is there ever a day when we cant fly big bricks? As the test flight and transportation site of Shengfei Group, Beiling Airport is not large in scale. After all, there is no daily take-off and landing pressure here. Hence, within a few minutes, aircraft No. 1401 was already parked at the end of the takeoff runway, and the wings were readjusted to a 20 sweep angle that was more conducive to takeoff. The area has been cleared. Unit 1401 can take off. ?Fu Guoxiang put on an oxygen mask, maintained the brakes and slowly pushed the throttle valve, and watched as the engine tachometer pointer, which had been replaced by a Chinese style, slowly turned to the right. As a test pilot stationed at Field 112, this is his first time coming into contact with the turbofan 9A model. In fact, there are currently only three aircraft in the entire China - the 01 and 02 prototypes of the JH-7A, and the No. 1401 aircraft, which only uses the turbofan 9A. ?However, the steady increase in speed still brings considerable confidence. It even reminded him of the test flight of the J-8C after major changes two years ago. They are also two engines installed for the first time, and they also have such a stable speed. ?Two new engines with considerable low-altitude and low-speed output have provided Fu Guoxiang with quite confident climbing capabilities. At least in his opinion, the current climb process is close to 70, and there is almost no loss of speed. Vigorously miracle. It was, of course, a representative from the Persian Air Force. On the other hand, if the TF30 engine in the past dared to carry out such large-scale and violent maneuvers at low altitude, 80% of them would have entered a surge state... Since there has been no formal means of importing spare parts for more than 20 years, in order to save the life of the machine, they rarely engage in such "wild" driving. "of course." In his opinion, such an aircraft, which still has an empty weight of about 17.5 tons even after weight reduction, seems to be relatively clumsy. The climb rate shown this time is obviously higher than in the past..." On the other side, this slightly wild action also caused a burst of exclamation in the command center of the tower. ?After pulling up the plane, Fu Guoxiang retracted the landing gear, then allowed the plane to accumulate some speed, and then made his customary high-angle climb. We replaced the material of the skin part that does not involve the main load-bearing structure, reducing the empty weight by about 700kg. Moreover, the sea-level thrust of the replaced turbofan 9A engine has increased by more than 17% compared with the past. By doing this again and again, the thrust-to-weight ratio of the entire aircraft near takeoff can be increased by almost one-fifth, and the power performance is naturally completely different. Compared with the J-11 he had flown before, the F14''s greater weight and drag made the acceleration capabilities of this model less optimistic and held it back slightly. However, the excellent lift coefficient still allowed this aircraft to use only Take-off conditions are reached at about one-tenth of the runway, which is about 350 meters away. Almost at the same time as the throttle valve was pushed to the end, the two engines sprayed light blue tail flames with Mach rings downward in mid-air. The wings also adjusted to a higher resistance in less than 7 seconds. Low sweep angle state of 68 which is more suitable for acceleration. He Ming already had a basic idea of ??the performance of this aircraft, so his attention was not always focused on the aircraft outside. After hearing the Persians evaluation, he immediately explained: ?After the engine reached takeoff thrust and stabilized for a few seconds, Fu Guoxiang released the brakes and the plane began to roar and accelerate on the runway. ?Fu Guoxiang himself was a little surprised by the pushing feeling coming from behind him. ??A colonel standing next to the leading Persian general stared at it for a while, and then estimated. After all, the F14 is a relatively mature design. After all, the "first flight" after modification is not exactly the same as the real first flight. The setting of flight subjects is much more open. Increasing the sweep angle will greatly reduce the lift coefficient provided by the wing, but... When He Ming said this, he even had a confused feeling ?The principle of making bricks fly with great force, one day I can tell it from my own mouth. ?Its really magical. "in addition." He Ming''s tone suddenly sounded a bit suffocating: I can assure you that the aircraft was filled with a standard amount of fuel before the test flight, and there was absolutely no situation where the engine was turned on in advance to consume fuel, thereby reducing the take-off weight. Hearing this sentence, even the Persian general laughed directly: Well, we have been watching you just now, and you really didnt do any tricks in this regard..." The two of them were talking about what happened when Persia purchased US military fighter jets. ?The candidates at the time were Grumman''s F14 and McDonnell Douglas'' F15. Originally, the flight performance of the latter should be much better, but Grumman specifically asked McDonnell Douglas to perform the performance first, while its F14 kept running its engine on the ground to consume fuel, thus making up for the thrust-to-weight ratio to a certain extent. disadvantages. ?Although the authenticity is virtually impossible to test, this story has become one of the famous urban legends in the field of international arms sales. After the brief joke, He Ming quickly returned to the topic: Getting back to the subject, in addition to the greater advantage of sea-level thrust, we adopted blade separation flow active control technology in the design process of the turbofan 9A engine, which can cope with very extreme intake distortion. "Although the specific flight envelope data still needs to wait for our test pilots to fly out the results, from a qualitative point of view, the improved F14 can allow pilots to perform violent maneuvers that were unimaginable in the past, such as...you have already done it anyway Saw it. ?The F14A purchased by Persia is an earlier batch of technical versions. The sea-level afterburning thrust of the engine is only 8,530kgf. However, the turbofan 9A, which has been partially improved by the turbofan 10 technology, has this data above 10,000kgf. Looking at it this way, the improved F14IC model can probably be equivalent to the level of the US militarys F14D? Obviously, the Persian Air Force has always been very concerned about the improvement of the Tomcats on the US military side. "You can say that." He Ming hesitated for a moment and then nodded: Although the sea-level thrust of the turbofan 9A is smaller than that of the F110GE400 replaced by the F14D, the overall improvement ideas and the performance orientation of the improved model are similar. Speaking of this, he suddenly remembered an interesting thing: Speaking of which, F110GE400 and Turbofan 9A, the total pressure ratio of these two engines happens to be 30.7, which is 50% higher than the TF30 engine. Of course, as a price, the high-speed performance and maximum flight speed of the F14 after the engine change, whether our F14IC or the US militarys F14D, have actually been reduced. "oh?" ??The Persian general who had been holding a telescope was also attracted by this topic about engines: Did you consider benchmarking against the F110 when designing? In fact, the reason why they decided to hand over the F14 to China for modification was partly because the size, weight and performance of the 1493 radar could perfectly replace the AWG9, and the other half was because they discovered the turbofan when visiting the Haofei Group. The performance of the 9A engine is quite good. Thats not the case. He Ming shook his head: This is a complete coincidence. In fact, the turbofan 9A is a by-product created by one of our chief designers for technical verification. It is impossible to specifically focus on benchmarking other models in terms of total pressure ratio. ?This answer was originally just that he told the truth without any deep meaning, but the effect was surprisingly good. Wait, you mean, the by-product... already has such good performance? Now that No. 1401 has flown far away, it is impossible to see it even with a telescope, so the Persian general simply put it aside, turned around and asked with a shocked face. He Mingxin on the opposite side said that it was because you didnt know what kind of hard work Mr. Chang was preparing to do on the Turbofan 10, but the contents of the third-generation (actually 3.75-generation) turbofan engine were all confidential, so he had to change to a more traditional one. Answer: Although it is a by-product, the technologies used on it are the latest cutting-edge technologies from the 1990s and even into the next century. It can be said that although the turbofan 9A was born out of the British Spey, it has no direct relationship with Spey now..." (End of this chapter) Chapter 599 Panda or tomcat Chapter 599 Panda or Tomcat The entire test flight process lasted about half an hour. ?Under the control of Fu Guoxiang, the No. 1401 aircraft reached a minimum sweep angle of 20 and the rear wheel touched the ground lightly, bringing a perfect end to this mission. Since U.S.-made aircraft are rarely equipped with speed parachutes (unless they plan to be deployed within the Arctic Circle for a long time), the taxiing distance of the aircraft after landing is slightly longer than that of the Chinese aircraft. There was a burst of applause and cheers in the command hall. Very good, very good. ??The Persian general picked up the telescope and stared in the direction of the runway again and repeated his words of praise twice in a row. He was obviously very satisfied with the performance of the F14IC during this test flight. Your Excellency, General, we have to go down. The data recorded by the flight computer needs to be archived as soon as possible. Of course, when the aircraft is officially delivered later, all the test data will be copied to you. ?He Ming directly handed the telescope in his hand to the assistant next to him and said to the leader of the Persian delegation not far away: In addition, I also arranged a dinner to celebrate the breakthrough progress of the cooperation project between our two countries. After being promoted from deputy chief engineer to deputy general manager of the group, he also had to learn to deal with some administrative and communication matters. Although he is still far from being proficient in this, compared to his dull state in the past, It is already much stronger. ?The first flight was successfully completed, and after hearing that there was a dinner reception, a group of Persians followed He Ming downstairs happily. The first four or five ?Several other people in the room stood up one after another. In terms of flight performance, the F14 feels lighter than I imagined. "Variable swept wings can indeed allow the aircraft to have several completely different performance characteristics, and they can be switched according to different environments. In particular, the wing sweep angle of the F14 during flight does not require additional operations on my part, but is closely related to the flight. The control computer is linked and adjusts the position on its own as I operate the throttle lever. After a moment''s pause, he continued to explain: What Im saying is that even excluding the engine upgrades weve made, this aircraft is easier to maneuver than it looks. ? ?The aircraft assigned to China by Persia for imaginary enemy missions are still being dismantled in the 70# factory. Therefore, Fu Guoxiang and Zhao Mengtian are currently the only pilots in the entire Air Force who have flown F14. After the colonel officer finished speaking, he led the rest of the people and saluted the two of them: The reason why I am calling you here in such a hurry is because the organization hopes to understand as soon as possible how you feel about all aspects of your test flight of the F14 fighter jet. At the same time, the two pilots who had just climbed down from Plane 1401 had just squeezed out of the crowd that gathered to celebrate and signed their flight records. ??This delegation came with the first batch of F14s. They have been in the factory for two months and are really exhausted. It was different from the usual test flight process. Today they had a special task to complete. ? ? Shiite religious law is not very stringent in terms of doctrinal norms. Banquets and the like do not matter at all. Even fermented or distilled food and beverages are not a big problem as long as they are not drunk in public. ?While Fu Guoxiang was describing, a lieutenant beside Wang Kang was also tapping the keyboard quickly, apparently recording what he said. The two pilots looked at each other, and finally the former with higher rank spoke: ?Wang Kang quickly captured the key point of his words: Comrade Fu Guoxiang and Comrade Zhao Mengtian, first of all, I would like to congratulate you on your triumphant return. ?Although the upgraded F14IC is different from the F14A and F14D, the basic flight characteristics will not change much. "In short, although this is the first test flight, I have not yet touched the limits of this aircraft, but its geometric maneuverability must be very powerful. In the early stages of combat within visual range, within about the first four to five flight movements It will be a very difficult opponent. Slightly further away, an Air Force colonel has been waiting for some time. ??Wang Kang, the brigade commander of the Dingxin Base Aviation Brigade, is also Zhao Mengtians superior, but this is the first time he met Fu Guoxiang. After completing the necessary physical examination after landing, the two of them followed each other into a Mitsubishi SUV and arrived at a conference room in the administrative building without even having time to change into flight jackets. In other words, you dont think this mobility is sustainable. Thats right. Fu Guoxiang nodded: "Although the small sweep angle can provide a good instantaneous turning ability, the resistance is also very obvious. In addition, the weight of the aircraft is still too large, and the thrust of the engine is not enough. After a few twists and turns, there will be a problem of insufficient energy. "As far as the two third-generation aircraft I have flown have been concerned, as long as the J-11 is not caught off guard during the first encounter, it should not be difficult to rely on its advantages in energy and large off-axis angle of weapons. To win, for the same reason, the J-11 can accumulate enough energy advantages in the process of firing and avoiding medium-range missiles after being equipped with a 1493 self-use radar with similar performance to this aircraft. " "However, if it is a second-generation aircraft, even the best among the second-generation aircraft like the J-8C, it still needs some targeted skills to win, or simply use the advantage of speed to fight and retreat quickly. Of course, the J-8C The 8C does not have the absolute speed advantage of exceeding Mach 2.8 or even Mach 3 like the MiG 31 or MiG 25, so it still needs to be dealt with carefully. "Oh, yes, although the F14''s wing sweep angle does not require manual adjustment by the pilot, the process of wing change is relatively long, only about 6-7 per second, and during this process, the aircraft will be in an extremely difficult to control position. If we can seize this window, we can take advantage of it. In fact, the last comment will be given simply because Fu Guoxiang has not flown other variable-sweep wing aircraft. The wingspan retracting speed of 7 per second is actually far ahead among similar aircraft. He recalled it again to make sure that he had not missed anything, and then concluded: In general, I think the F14 is limited by its basic design, and its potential is not as good as those real third-generation fighters that came later. However, considering the actual situation of our countrys air force, we still need to be very vigilant in facing it. What Fu Guoxiang said is already very complete, and there is not much that Zhao Mengtian needs to add: "The performance of the 1493 radar is very good. I tried turning it on in the air and found that the warm-up speed and refresh frequency are very fast, which is much better than the N001 on the Su-27SK. During the test flight, the radar even captured a 240 kilometers away The medium-sized air target should be a passenger plane that happened to fly by." In addition, I believe that with the improvement of radar and fire control computer performance, a separate pilot is no longer actually needed to operate the radar and guide missile firing during beyond-visual-range air combat. However, if it is a ground attack mission, then considering that the guidance methods of air-to-surface weapons are generally more complex, and many require full human-in-the-loop control, the second pilot is very important. So I suggest that we carefully consider the equipment quantity of the two-seat J-11, that is, the Su-27, unless we plan to develop a multi-purpose fighter with ground attack capabilities based on it. The conversation between several people continued until the evening of that day. ?At this time in 1998, the F14 could still be regarded as the main model in the US Navys carrier-based aircraft force. Hence, Wang Kangs questions were also very detailed. ?And, as the topic continued to unfold, it later involved not only the performance of this F14, but also some pilot training and problems in the formation process of the Blue Army unit. Seriously, Comrade Guoxiang, are you interested in being transferred to our Blue Army Aviation Brigade? ?Before leaving, Wang Kang patted Fu Guoxiang on the shoulder and joked. ?Of course he knew that the other party would not agree, but he just said it casually. Sure enough, Fu Guoxiang did not pick up the issue, but changed the topic somewhat abruptly; We have exchanged F14s for our own use, and the first of them should be rolling off the production line soon. By then, Brigadier Wang, your troops will be more like the genuine US military. Zhao Mengtian, who was following the two of them, had been stroking his chin and thinking for a long time. At this time, he suddenly raised his head and said: Speaking of which, the F14 fighter jet of the US military is called Tomcat, so now the F14 that has been improved by our country...can it be called Panda? The news that F14IC completed its first flight naturally quickly reached Chang Haonans ears. But for him, this incident can only be regarded as an episode in his busy work. ??If he had to say that it had something to do with him, it might be that the new engine, Turbofan 9A, was an improved model that he "accidentally" made. I feel ashamed that I have only made some small contributions. ?Originally, he thought that after the component-level testing work at hand was completed, he would take time to take a look at Field 112 to see what the "alive" F14 looked like. But before he could actually make the trip, at the end of May, exciting news came. ?Eurocopters NH90 prototype finally encountered a problem. (End of this chapter) Chapter 600 Bearing, broken Chapter 600 Bearing, broken Not long ago, Marseille, France. ?Under Pierres anxious supervision and the pressure of there may be layoffs if the project is gone, the work efficiency of the entire NH90 project team has improved a lot. ?According to the technical information provided by Huaxia, the transmission system has been manufactured and installed on the No. 02 prototype, which is relatively new and in good condition. The processes for conducting aviation project research and development are basically the same all over the world. The next step is definitely to prepare for the test flight. Actually, up to this point, Pierre was still relatively optimistic. Its not that he has any extraordinary trust in the Chinese people, but that another project team, his colleagues, have already used the transmission system design solution provided by Huaxia in AS365N2, which is the second-generation Dolphin improved model. On top of the helicopter. After testing, it was found that the effect was very good, and the problem of the old model being unable to increase the take-off load by further increasing the engine power and the hovering time being too short was finally solved. Of course, the Dolphin project was discussed directly with the Torch Group, not the Ice Flying Group, so it was naturally not included in the NH90 cooperation. Although the counterweight of the entire aircraft will be affected to some extent, our fly-by-wire flight control has an automatic trimming function and will not be affected. ?In the era of hydraulic flight control, or earlier than that, if a pilot wanted to control an unbalanced aircraft, he often needed extremely high flying skills and took huge risks. As we all know, once something goes wrong in a so-called "cooperation project", it will inevitably involve blame-shifting. But for computer-controlled fly-by-wire flight control, these are not problems. ??While Pierre was thinking this, he turned his head and looked at the few Chinese engineers standing not far away from him. He felt that his mood was unprecedentedly smooth. So, on the morning when the ground test was over and preparations were made for the test flight, he felt a rare sense of joy. Have you specifically checked the condition of the tailgate springboard? In comparison, it is more worry-free to be each others suppliers... ??If you are careful enough, you will find that the engine nacelle of this No. 02 aircraft extends wider to both sides, and the springboard door at the tail part is obviously newly replaced, shining with the color of the metal itself. ??The voice on the radio interrupted his thoughts, causing him to refocus his attention on the silver-gray helicopter on the tarmac outside the window. In the past nearly two years, Pierre''s main energy has not been able to focus on technology at all. ?As long as the incident has entered this stage, it is completely foolish to think about discussing technical issues calmly. The assistant replied firmly: ??The quarrels among the four partners had already exhausted him mentally and physically, and the unsatisfactory test flights of the two prototypes only exacerbated the problem. So at that time, if the aircraft carried bombs under the wings, it was generally impossible to drop just one. ?However, in Pierres view, since they are all solutions provided by the same supplier and have basically the same technical route, the effects should be similar. ??Although the pre-takeoff checklist had already been sent to the ground crew technicians, and they only needed to follow the items listed above, Pierre still asked the assistant on the radio side specifically. ?Although it seems that there is no change at first glance, compared with the other No. 01 prototype a little further away, its essence is completely different. It has been checked before installation, before leaving the factory and just now. There are no problems with the sealing and structural strength. Dr. Pierre, the aviation department reports that all preparations for takeoff have been completed. ?The pilot only needs to ensure that the control stick is centered, and the flight control system will automatically adjust the wing surface to achieve level flight. The same principle applies to helicopters. Since this No. 02 prototype is a modified old aircraft, it is naturally impossible to replace all the structural parts of the aircraft, so Pierre thought of replacing the rear tailgate with a lithium-aluminum alloy material first to test the impact on flight performance. What impact will it have. The Dutch were naturally opposed to changing the material of the fuselage at first, but Pierre was very tough on this matter, and through Le Maire''s relationship, he laid out the carbon fiber of dozens of Dutch companies. The contract for the aircraft was transferred to Airbus, and through hard and soft measures, the matter was finally finalized. Get ready to take off. ?Pierre took a deep breath, inadvertently clenched his hands into fists, and propped himself on a table in front of the window, staring at the helicopter outside and the busy crowd behind the guard. As a burst of flames erupted from the exhaust of the APU, the rotor of Unit 02 slowly began to rotate. Because the rotor and front fuselage have not been replaced yet, the noise is still quite obvious after starting. Even more than a hundred meters away, you can hear a rhythmic thumping sound, which makes people feel slightly uncomfortable. Originally, everyone was involved in helicopters. After so many years, our ears have long been accustomed to it. ?But as soon as he thought of the Chinese Dolphin he saw in Singapore last year, Pierre couldn''t help but laugh again. Wang Xibo, who was next to him, looked at the constipated expression on his face and thought that the old comrade in his fifties couldn''t stand the medium-frequency pulse sound, so he leaned into the other person''s ear and said something very considerate: Dont worry, Mr. Pierre, my colleagues are already working overtime to develop the rotor and fuselage. It wont be long before they can be used on the newly manufactured No. 03 prototype. Speaking of this, Wang Xibo glanced in another direction involuntarily. ?That is the production workshop of Eurocopter. ? Pierre had taken him in twice before to guide his work. ?It must be said that the production environment and equipment level completely overwhelm Bingfei Group, which makes it hard not to be jealous. ??Although his intentions were good, Pierre''s face turned ugly because he was distressed at the thought that his helicopter design level was not as good as China''s. His words did not have a consoling effect, but the last hit made it stronger. OPierre''s lips moved. He could also guess that the other party had some misunderstanding, but he really didn''t know what to say. In the end, I had to respond with silence. It''s just that his face seems to be darker. Wang Xibo found that his persuasion had no effect and did not continue. He just took a sound-isolating earphone from the side and handed it to Pierre. The latter took a deep breath. ?But I put it on anyway. ?While the two of them were playing a small theater in their hearts, the helicopter on the tarmac had accumulated enough power, roared up from the ground, and flew into the air. ?This No. 02 prototype has flown for hundreds of hours, so there is no need to repeat all the subjects. Hence, after performing a few simple movements such as flying forward, backward, left, and right, a deeper test soon began. For a time, the only sounds in the radio channel of ground-to-air communications were the commander issuing flight instructions and the pilot responding to them. In the next nearly half an hour, the pilot did not specifically report the condition of the transmission system. ?Pierre''s mood gradually became relieved as the helicopter''s increasingly large-scale flight movements became larger and larger. Just like for a car, the best gearbox is one that makes people unable to feel that the gearbox is working. The highest level of the helicopter transmission system is that the pilot cannot detect its existence. So, when he saw that the helicopter had entered a hovering attitude and was preparing to conduct the last test of the day, the test of different outputs of the bilateral engines, Pierre had even thought about what he would drink to celebrate tonight. However, it is proven that champagne cannot be opened in advance. The pilot reported that the temperature of the reducer lubricating oil was abnormal. ??The voice on the radio suddenly became urgent, causing Pierre''s heart, which had already entered a relaxed state, to shrink suddenly. He almost stumbled to the front of the command podium and asked the pilot directly about the specific situation. The report received is that the problem does not appear to be serious, because the abnormal point is the side with more power in the current test, and it is entirely possible that it is a "normal abnormal situation" - Because the input power of the engines on both sides of the current test is unbalanced, it is originally an emergency state. The expected abnormal situations that occurred in this state are actually considered normal for test flights. Just when Pierre was hesitating, Wang Xibo, who had just learned the whole story from the interpreter, came over and put his hand on the Pierre''s shoulder: Dr. Pierre, I recommend that this project be discontinued immediately. According to our design, even if the output power of one side is 0 and the other side is outputting at full emergency power, there should be no problem with the lubricating oil. OPierre is a person who mainly listens to advice. Since the supplier of the transmission system had advised abort, he just went down the **** and asked the pilot to prepare for landing. Lets go over and check it out and see what the problem is. ?Abnormal oil temperature is just like a human fever, it is just a "phenomenon" There may be many reasons for the phenomenon. ?Wang Xibo was even more anxious than Pierre at this time. The NH90 project is one of Chinas two model projects for going global in the helicopter field. ??If something goes wrong on our side, it will have an immeasurable negative impact on the reputation of Bingfei Group and even China Aviation Industry. ?This made Wang Xibo''s mind a little confused for a while. ?However, on the surface, he still maintained his calm. ??The atmosphere in the entire flight control center also changed from the light and relaxed atmosphere just now, to becoming depressing. By the time the group of people came to the tarmac, the helicopter had completed all landing procedures, and the ground crew had set up a maintenance frame and were ready to climb up and dismantle the entire engine compartment. Because the engine has just stopped, it will take a while for this process to be serious. Upon seeing this, Wang Xibo and Pierre had to first learn the details from the three pilots. Both of them were very worried at this time. The former is not a senior expert in transmission. If the problem is too complex, it is likely that the cause of the fault will not be determined until after communicating with the country. For the latter, if this cooperation with China fails again, the NH90 project will really be ruined. ?However, the two people''s fear did not last long. ?The ground crew had little trouble identifying the source of the problem. Dr. Pierre. ?His deputy stood on the maintenance frame and shouted: The shafting support bearing of this main reducer is broken! (End of this chapter) Chapter 601 NSK Group, the incident came to light Chapter 601 NSK Group, the incident came to light ?When he just heard about the cause of the failure, Wang Xibos first reaction was... Dont quite believe it. From the perspective of a helicopter designer, even if he is not a designer specifically responsible for the transmission system, this is really outrageous. Because the shaft system support bearing can be said to be the most basic part of the entire transmission system of the helicopter, its status is similar to the main bearing of the turbofan engine that Chang Haonan has studied before. ?It was broken down less than 40 minutes after takeoff? ?This problem is so big that it doesnt even sound true. ??For this cooperation project, Bingfei Group has adopted almost the most stringent standards, and all design content must be blindly checked at least twice by different people. ?Even if there are some small omissions, it is impossible for such a big mistake to occur. It is impossible that when Eurocopter Group purchased bearings, it just happened to buy defective products, right? No way? Who would believe such a big company? Furthermore, even if they know that they are going to be used in harsh environments like helicopter main reducers and that life and death are at stake, the bearing supplier wouldnt be so bold as to issue fake products, right? ?Wang Xibo had never seen this scene before, and he was so shocked that he directly spoke Chinese. As a provider of the entire transmission system solution, we will definitely have to take the blame temporarily until the problem is fully understood. As for the specific cause of the problem, I will communicate with the country immediately and resolve it as soon as possible. Following this, he made a statement that he would immediately start troubleshooting the problem. ?Therefore, after a round of analysis, Wang Xibo felt that it was possible that the opponent''s ground crew had misunderstood. You must know that the NH90 is a 10-ton helicopter with a rotor diameter of 16.3 meters. The bearing set for the main reducer is as big as a plate and several centimeters thick. The material should also be G13Cr4Mo4Ni4V or a corresponding higher grade bearing steel. Then The technical solution is indeed ours, but you have checked and approved it before. After all, the design of this transmission system is quite different from the original plan. ?Pierre next to him also looked shocked. After a while, he looked at Wang Xibo next to him with doubtful eyes. ?However, Wang Xibo pulled Pierre onto the same chariot as himself with just two words - ?The other party''s ground crew skills are indeed in place. In just a few seconds, the outermost shaft system support bearing has been removed. Even though the latter was also stunned, he still managed to calm down and said as if he had everything under control: ?Do you have to explain this? ?And on its side surface, there is really a ferocious axial crack running across it. "Mr. Pierre, the design of this transmission system is not just taken and installed directly on the helicopter. You have completely verified it before. So I think the design itself has flaws that neither you nor I have discovered. Its probably not very likely. With such doubts, he followed Pierre and climbed to the halfway height of the maintenance frame. ??Although the main optimization direction of this type of material should be hardness rather than strength, it would be too outrageous to directly tear off the surface reinforcement layer... This statement is quite high in emotional intelligence. ?Although he didnt say anything, the meaning was obvious Holy shit, is this really true? In short, all possible places where the other party may cause trouble are blocked in advance. In fact, by this time, Pierre had also passed the initial stage of fear. Smart IQ has regained the high ground. He also realized that Wang Xibos logic was correct. In that plan, the only thing that made it feel a bit risky was that at the beginning, less than 5% of the design margin was reserved. It is almost equivalent to leaving no room for maneuver in the subsequent calculation process. But no matter how much was left, the final calculation and verification process was passed smoothly. ?Then you can only say that the design level is high, but not that the margin is too small. Secondly, logically speaking, when implemented in the production and manufacturing process, standard parts such as bearings should have some redundancy compared with their nominal performance. It shouldnt have deteriorated like this so quickly. Of course, there is a more important point. ??If it is really a design problem, then of course Bingfei Group must bear the main responsibility, but as the project leader, he is certainly not free from the problem. After this idea was formed, Pierre immediately ordered the ground crew to drag the aircraft back to the assembly workshop, and restricted the access of people in the nearby area on the grounds that confidentiality was required during the troubleshooting process. In any case, we have to wait until the real cause of the failure is determined before taking a long-term approach. ?In this way, a few hours later, the news that the NH90 prototype malfunctioned and needed help from the Ice Flying Group to investigate in China was reported to Chang Haonan. ???? He didn''t even call to inform him, but Liu Hongbo ran directly from the capital to Shengjing with the design plan and described what happened. "Uh...Mr. Chang, why do I feel like you...are not surprised at all?" Liu Hongbo was actually very nervous at this time. ?The main reason is that he is in China after all, and there is no online remote diagnosis technology these days. It is not easy to attribute it based on verbal descriptions and a few blurry photos. He was even ready to take a leave of absence from Beijing Hang University and fly to France to see the situation. ??This time I came to Shengjing, it was also a time to ask for some tips before leaving. ?However, Chang Haonan, who was across the desk, seemed not nervous at all. "Ah...no, I was so shocked that I couldn''t speak for a while." ?Chang Haonan tried his best to pretend to be nervous, but the true emotion in his heart at this time was actually ecstasy, so his face showed an unbearable expression. "oh" ??Liu Hongbo looked at the way his junior brother and bosss facial muscles kept twitching. Although it seemed unlikely, it was clearly a sign that he wanted to laugh but was holding it back... Forget it, dont mention this. Chang Haonan also felt that if he performed again, he might be in trouble, so he quickly changed the topic to the technical level: "If it is true, as you said, that before the plan was issued, two rounds of blind reviews were conducted, and after arriving there, Eurocopter also confirmed it, then it is basically impossible that there is a problem with the design, otherwise it may cause The cracking of the main reducer bearing group is not even a design flaw at the level of wear, it should have been seen long ago. ?The categorical judgment even made Liu Hongbo on the opposite side feel a little moved for no reason. What''s this? This is trust! Chang always trusts him more than he trusts himself! ?Of course, this is purely a self-strategy on his part. ?Chang Haonan set up the situation himself, and of course he knew what was going on. The reason why he didnt tell Liu Hongbo the whole incident was because he didnt trust him Of course it does not refer to technical level, but to performance level. Thats right, Chang Haonans plan also required Liu Hongbo to go on a business trip to France. Its not just about making sure nothing goes wrong. From the perspective of R&D specifications, after the fault is determined, Liu Hongbo, the person in charge of the design, also needs to sign. Mr. Chang, if its not a design problem, could it be a production problem? Liu Hongbo looked unconvinced: According to my observations during this period, Eurocopters quality in manufacturing things is quite good. For example, our imported AS565 has many design flaws, but after taking it apart, the workmanship is absolutely smooth. , Its higher than our current level. Eurocopter may not have a problem, but what about the suppliers? They may not have a problem. ?Chang Haonan began to guide possibilities in the preset direction. But Liu Hongbo still feels its a bit outrageous: Its impossible that when Eurocopter purchased bearings, it just happened to buy defective products, right? ?This question made Chang Haonan not know how to answer it for a while. If you are too sure, it seems like you are jumping to the top. So he simply said: "Anyway, this possibility cannot be ruled out. Before you fly to France, talk to Wang Xibo first and ask them to use these few days to check the performance of all the components of the main reducer. After you go there, Take a look at the results and report back to me. Chang Haonan''s words have reached this point, so Liu Hongbo naturally chooses to follow them. ?Soon, his troubleshooting suggestions were sent to Eurocopter. At the beginning, Pierre was quite disapproving. Its impossible for our marketing department to just buy defective products when purchasing bearings, right? He said to Wang Xibo: Besides, before placing an order for purchase, according to regulations, samples must be tested for performance. It is not like going to the supermarket and buying them casually. In fact, as mentioned before, Wang Xibo himself doesnt really believe it. But this was an instruction from the country after all, so he had no choice but to ask Pierre to urge the testing department to do it. Quan is treated as a dead horse and a living horse as a doctor. However, within a few days, the report of the complete destructive test conducted by the quality inspection office was placed in front of the two people. The results showed that the structural strength, surface hardness and other key properties of the batch-produced bearings they purchased were about 10%-12% lower than their nominal data. The report also specifically mentioned that the samples sent for inspection this time are completely different from the samples sent for inspection before the purchase contract was issued, and cannot be regarded as the same model at all. ?Looking at this result, Wang Xibo and Pierre felt numb immediately. NSK The latter slapped the report heavily with one hand: You are really brave enough (End of this chapter) Chapter 602 Teach the Japanese a profound lesson! Chapter 602 teaches the Japanese a profound lesson! In principle, the testing center is only responsible for giving conclusions and is not responsible for analysis. But the meaning in the test report is actually very clear. The samples taken directly from the bulk supply this time are completely different from the previous ones. Basically, it is equivalent to saying that after the supplier passes the first test and gets the contract, it starts to provide unqualified products in batches. ??Moreover, the design of this substandard product is quite exquisite. ??If it weren''t for the small margin of the NH90''s transmission system, there would be no problems in a short time. ? Even if a problem is discovered later, it will basically only have a slight impact on the lifespan, which can easily be regarded as a normal deviation between the calculated results and the actual situation. Hardly anyone would think about parts being substandard. Dr. Pierre, please calm down first. Having said this, Pierre closed his eyes in pain and tapped the report on the table with both hands: Dr. Wang, what about this...its a long story... The cost of increasing the sampling rate, regardless of economic, labor or time costs, is simply too outrageous and is a complete waste of resources. Because every component in the industry chain should know that maintaining this seemingly loophole-filled quality system is the best outcome for everyone. The most we can do is bribe a third-party testing agency to issue a false report. After all, very few parties can conduct testing completely on their own like us. ?This system certainly has a lot of loopholes, but there hasnt been any big trouble in so many years. The whole world, at least in the high-end industry, has been maintained like this. But now, the first guy to completely break the rules has appeared. Immediately afterwards, Wang Xibo was explained to Wang Xibo the reason for this situation. This set of things will soon become unusable... NSK''s operation is equivalent to flipping the table on which everyone eats, and will greatly increase the operating costs of every link in the entire market. ?Thinking from a rational perspective, Wang Xibo can understand what Pierre said. You...wont you do sampling testing on every batch of samples? ?Pierre, who sat back in the chair, shook his head, and then sighed softly. ?However, considering that Hua Xia has never been to this table, it is difficult for him to have any empathetic thoughts. It is better to maintain trust between each other, so that everyone can earn more. In terms of operation, as long as you bribe an insider at the middle level or even at the grassroots level, you can make preparations in advance and deliver a batch of qualified products in a targeted manner. Originally, of course some people have tampered with the quality before, but they would not take advantage of this loophole. Wang Xibo first briefly comforted Pierre who was about to explode, then looked at the report in his hand and asked with a complicated expression: Originally, our domestic experts have also been sent to investigate this matter, and they should arrive tomorrow morning. But it seems that apart from signing and drawing a conclusion, he does not need to do anything. Once trust is destroyed, it is almost impossible to rebuild it. Eurocopter Group will of course conduct random tests on its products, but after all, destructive testing is required, and the cost of this bearing is quite high, so the frequency is actually very low. ?Wang Xibo looked at the appraisal report with a somewhat helpless expression. After a slight pause, he raised his head again and looked at Pierre behind the desk: What are you going to do about the bearings? Although we discovered it in time and did not cause too serious losses, the test flight work will definitely have to be suspended for a period of time until the next reliable supplier is found. ?Hearing this question, Pierre also sat up straight again: "What to do...it''s natural to file a claim. This matter will be handled by the legal department, so you and I don''t need to worry about it." But I still need to write a few reports to explain the reasons for the problem to several departments of defense. This matter has nothing to do with Bingfei or Eurocopter, so the follow-up processing is actually not complicated. On the contrary, to some extent, it proves that the design produced by Bingfei Group is indeed exquisite. Suffice it without wasting it. ? For Pierre, he is currently exhausted mentally and physically by the NH90 project itself. Therefore, although he hates NSK''s fraud very much, after considering the overall situation, he decided to focus on technology. On the one hand, delivering the aircraft as quickly as possible is the top priority right now, and entangled with NSK will not help this process. On the other hand, as Pierre said before, the bigger this incident gets, the more damage it will do to the past set of market rules based on mutual trust. So, if nothing unexpected happens, there is a high probability that this matter will just go away. ??At most, the subsequent claims and court confrontation may attract some media attention, and the NSK Group will be included in the supplier blacklist. It was the afternoon of that day, which was also the evening on the Chinese side. Chang Haonan, who was conducting a summary analysis of the components and test results of Turbofan 10, received a notification from Bingfei Group on the subsequent development of this matter. He was so angry that he almost got into a fight. ?Chang Haonan originally prepared a set of combos to target the entire Japanese manufacturing industry. ? All things considered, he never expected that Eurocopter would tend to keep a low profile on this matter. ?In this way, although NSK will definitely still suffer a huge blow, if the operations in recent months only involve a certain company, it would be a real loss. ?Thinking of this, he picked up the red telephone receiver on his desk and prepared to call Lan Xinzhi from the Equipment Industry Department. ??But when his finger was placed on the number button, the number was not dialed. After hesitating for a moment, he finally put the receiver back. Chang Haonan took a long breath, calmed down, and whispered: Its better to wait and see ??If Eurocop decides to stop here, it wont make much difference whether he hits his combos earlier or later. But if you wait a little longer, there might be an opportunity. Game is a bit like gambling to some extent. You cannot control all external factors. But if you can always make the optimal choice rationally, then with a large sample size, you will definitely win in the end. In the end, he really had to wait. When Liu Hongbo, who was tired from traveling all the way, landed in Marseille and finally arrived at the headquarters of Eurocopter, what was in front of him was an investigation report that had already been written. We have no responsibility at all in this matter, and Eurocopters legal department will handle any subsequent matters, so... Professor Liu, all you need to do is sign here. In Pierre''s office, Wang Xibo pointed to the signature column at the end of the report with some helplessness and said to Liu Hongbo. Originally, all three people should be present at this time. But Pierre had just been called out by a phone call. Did they really buy fake bearings? After reading the contents of the report, the latters eyes almost bulged out in shock. ??Yesterday when Bingfei reported to Chang Haonan, Liu Hongbo was already on the way to the airport, so he was almost the last one among the relevant personnel to learn the truth of the matter. It sounds outrageous, but...its really that simple. ?Wang Xibo replied: Im also surprised that a Japanese company can commit fraud so brazenly, and in such a crude way Before he could finish speaking, there was a loud bang at the office door. ?Pierre almost kicked open the door and walked in angrily, mumbling something. ?During this period, Wang Xibo also learned some French under the influence, but the other party spoke too fast and could not hear the specific content clearly. ?However, judging from some keywords, it should be some content that is not easy to pass the review. Pierre, what happened? ?Wang Xibo tried to calm Pierre down. Just now, people from the public relations and legal departments told me that NSK Group rejected our claim for compensation! ?Pierre sat down on the office chair. Originally a white man, his face was almost as dark as Tyrell. He was obviously very angry: They said we didnt have enough evidence to prove that their group sent us products with substandard performance. "ah?" Liu Hongbo, who had learned the whole story from the report, was immediately shocked: No, the test report has already been slapped on your face, how can you still be so arrogant? Their legal department said that the difference between the sample and the final product may also be caused by the subcontracting by our internal people in the middle, and we need to provide stronger evidence! OPierre was also laughed out of anger when he said this: I originally wanted to handle this matter in a low-key manner, but now it seems that I still have to teach them a profound lesson! (End of this chapter) Chapter 603 This is no longer an ordinary fraud. It must be concluded that Chapter 603: This is no longer an ordinary fraud, it must be dealt a heavy blow! ??Although Wang Xibo and Liu Hongbo are not aware of Chang Haonan''s plan, they know that a well-known Japanese company is about to suffer a major blow in Europe, which is definitely a major benefit for China. After all, even in developed countries, ordinary people dont have much money in their hands. Hence, Europes demand for cost-effective industrial manufactured products is still very strong. With fewer competitors, there is more possibility of opening up the market. Especially Liu Hongbo, who has been working with Chang Haonan for more than half a year. He was keenly aware that there might be room for maneuver behind this. Therefore, the two of them contacted the Chinese Consulate as quickly as possible after returning, and reported the 180 reversal of Pierre''s attitude to the country. ?At this time, it was already late at night in China five time zones away. ?However, after receiving the call from Bingfei Group, Chang Haonan was no longer sleepy instantly. In the current situation, even Eurocopter was originally not prepared to make a big fuss. If NSK gave in and then paid a sum of money, it would be beyond his reach in China. It is indeed a bit inhumane to call the couple in the middle of the night, but the matter is urgent and there is no need to worry about that much. Obviously, in Lan Xinzhi''s opinion, it is definitely a big deal to get the other party to call him at this time. Furthermore, due to the constraints of the WTO, it cannot be too obvious. Its not a problem, its our opportunity. Judging from the Ministry of Foreign Affairs level of maintaining spokespersons in the country, the real impact may not be too great. His tone suddenly became a little nervous: Given the former''s status, the phone call can naturally be made directly to the latter''s home. ?At the same time, he turned around and gestured to his wife on the bed behind him to prepare a coat for him. Its almost midnight. At most, he relies on his influence to restrict the supplier status of Japanese companies in some national projects. Chang Haonan replied: Director Lan, I am Chang Haonan. Mr. Chang, is there any trouble that needs to be solved? Lan Xinzhi, who was still a little confused at first, reacted immediately when he heard Chang Haonan''s voice, and then looked at the watch on the desk. Just relying on individual people to run around and shout out cannot solve any problem. That is to say, throw out the evidence collected before and make some small moves in the domestic market. ?Thinking of this, Chang Haonan immediately picked up the phone again and contacted Lan Xinzhi. ?However, now, NSK is not ready to give in, but wants to fight hard with the old European local snake? ?This is Wu Dalang drinking giraffe milk - jumping up and down... After all, brand image is rooted in the hearts of the public. NSK Group and Eurocopter may have a conflict in terms of public opinion and law. During this period, please pay attention to business news in Europe, especially France, and be ready to cooperate with them at any time. These days, there are no communication methods such as trending short videos, and even search engines are very immature. If you really want to collect a certain aspect of information in a short time, you can only go back to traditional media. . Whether it is watching TV news or foreign language newspapers, specialized manpower is needed. He himself now wants to break it into eight pieces for use, so he can only let the Equipment Industry Department take charge. The reason why Liu Hongbo was not approached was because although he was in France, he was still Chinese and a relatively sensitive technician. It was really inconvenient to chase people from the Eurocopter Group and ask questions all day long. ??Other than himself, the person who knew the most about Chang Haonan''s layout was probably Lan Xinzhi, so the latter was just stunned for a moment before he roughly figured out what was going on and what exactly he needed to do. "Okay, I''ll make the arrangements. If anything happens, I''ll notify you as soon as possible." ?Although wired telephones are inherently more confidential, the phone at home is not a dedicated line after all, and it is impossible to talk about everything on it in a big way. Therefore, after arranging the most important things, the two immediately ended the call. Its so late, do you still want to go out? Lan Xinzhis wife came from behind holding clothes, her tone slightly aggrieved and dissatisfied: Work also requires time... After you got promoted, you feel even busier than before... ?Having said that, my hands did not stop helping me change clothes. "The higher the position, the heavier the burden on the shoulders..." Lan Xinzhi knew he was in the wrong, so he had no choice but to comfort his wife. "I''m not saying that. You are now a director. The only ones who can instruct you like this are the directors of your Science and Technology Commission. The voices I heard on the phone just now are not very different. Sometimes you can''t talk too well at work. Already "this is" Even as Lan Xinzhi finished speaking, he still felt that Chang Haonans affairs could not be revealed too much, so he gave a vague explanation: "The situation is quite special. The Equipment Industry Department can do without me as director, but it cannot do without this person." Furthermore, I was able to skip the process of deputy position in the business department and be directly transferred from the secretary position to the director this time, thanks to others..." Hearing this, his wife, who was tying his tie, opened her eyes: How come Ive never heard of you talking about it before? "If you have such a noble person...the relationship must be maintained diligently..." Obviously, she has regarded Chang Haonan on the other side of the phone as some kind of "mysterious figure who is not in the Science and Technology Commission system but has a rich background and can speak well." ?? And this imagination is actually very close to the truth by mistake. Chang Haonan does have a background now, but its just not the kind of background he imagined... Its still a little inconvenient to talk about things in the unit... After a little prevarication, Lan Xinzhi picked up the briefcase at the door and went out. ?On the other side, Pierre also quickly took action. He had said before that he would hand this matter over to the Ministry of Justice for legal proceedings. But legal procedures, in many cases, do not mean going to court. Out-of-court settlements also count. ?However, because of the stubborn reaction from NSK, this road to reconciliation has been blocked. Unable to swallow his breath, Pierre quickly submitted prosecution documents and found media outlets he was familiar with to begin reporting the incident on a large scale. For a time, the news that "NSK Group had committed fraud during product testing" was widely reported in the newspapers, and even the officials of several countries participating in the NH90 project have made statements. In fact, NSK Groups choice of this abstract response method is not because there is something wrong with the brain, but because there is really no other way. Members of the family know their own affairs. Since the second half of last year, almost one-third of their shipments have been products ordered separately from China and then OEMed. ??As for manipulating test reports, falsely marking the performance of products of similar quality by about 5-10% is even more traditional art. ??If you give in and pay money in the Eurocopter case, it will be completely out of your reach as soon as this hole is opened. ?As for hard steel, at least the legal stalemate can last for a long time. After all, this is only their first supply to Eurocopter, and the latter cannot have too much evidence on hand. ? Even if the case is eventually lost after a lengthy judicial process, the impact of the incident will be diluted by time. ? ? A little reading of the history books explained it as "an error in the shipment of the first batch of products", and this matter was solved. It must be admitted that this set of operations is effective. Otherwise, this kind of fraud in the previous life would not have been exposed in batches until the 2020s. Although there was indeed a wave of heat in the media in the first few days, just as the NSK Group expected, Pierre could not provide enough strong evidence to prove that the problem lies with the other party and not with himself. On the head of the mole. ?In addition, although Western reporters can run very fast, the accuracy of their reports has never been praised. Therefore, after a few back and forth, the attention on the incident gradually subsided. Even the stock prices that had fallen before have gradually begun to recover. At this most critical moment, Chang Haonan took action. ?Through his personal connections, he contacted Li Liangyi, general manager of Jinling Motors, and the joint venture partner Fiat Group. You should know that although most of Iveco''s wheel bearings have been replaced with domestic products, other Jinling Fiat models and other parts are not as efficient. For the sake of "safety", many still use original imported models. ?As a result, I suddenly learned that the imported bearings I bought at a high price were actually OEM products made in China, and their performance was even falsely marked? Therefore, when NSK was completely unprepared, the Italian Fiat Group suddenly issued a public statement, saying that they conducted special sampling inspections of the global models they produced, and finally found that among a total of seven models from its three brands, the actual performance was lower than NSK Group parts with product numbers. The hardest hit areas are tapered roller bearings for wheel hubs and deep groove ball bearings for gearboxes. Since the fourth quarter of last year, it has been discovered that the number of parts involved exceeds 1.5 million. Finally, he also stated that he would recall the involved batch of vehicles as soon as possible and was preparing to sue NSK over the matter, demanding huge compensation. At this time, it can be said that one stone stirred up a thousand waves. Helicopters, especially military helicopters, are still too far away from ordinary people. Even if everyone sees the previous news, it is just for fun. After reading it, forget it, and few people will care about it. This is not the case with cars. ??Although Fiat is not selling well in China, it is still very popular in Europe. Whats more, there are supercar brands like Ferrari under it. In fact, if you read Fiat Group''s complete statement and the contents of the indictment, you will know that the vast majority of the vehicles involved this time are for the global market, especially the Chinese market. ??And most of them are still in the factory and have not been sold, and they have little to do with European local cars. But even in the Internet age more than 20 years later, not many melon-eating people would care about these details, let alone 1998. ?At this time, if you want to read the indictment, you may even need to apply to the corresponding court. ?Therefore, NSK Group, which had just barely gained a breather, was instantly pushed to the forefront again. ?Furthermore, Fiat has shown quite convincing evidence. That is the ones that Chang Haonan and Lan Xinzhi collected before. Now, the ones with numb claws are the Japanese. They never expected that a company would not even try to communicate with them after discovering a problem, but would directly start collecting evidence. It is completely prepared to fight until death. ? NSK Group, which was caught off guard, finally realized that the situation was not good for itself and was ready to change its response strategy. That is to say, give in. However, it is a bit late to kneel down at this time... (End of this chapter) Chapter 604 Is the spirit of craftsmanship enough? Chapter 604: Is the spirit of craftsmanship enough? In fact, NSK Groups decision to give in is not entirely their own decision. Mainly there is also pressure from domestic peers in Japan. ?As Chang Haonan found out before, this kind of large-scale and systematic fraud cannot be done by only one or two companies. ?When the incident becomes more and more serious, other Japanese companies with similar behaviors will have to worry about whether they may also be implicated if they allow the storm to continue. ?Therefore, from an overall perspective, the best way is for NSK Group to fight mines on its own and let this matter end here. In other words, they are prepared to lose their coach but keep their coach. Even if the NSK Groups reputation is discredited, as long as the limelight passes and the overall reputation of Japanese companies is not greatly affected, it will not be difficult to change its shell and be reborn after several changes of hands. But if it causes a chain reaction, it will be a big trouble. Therefore, just a few days after Fiat Group issued a public statement, NSK Group quickly kneeled down and admitted that there were procedural omissions in the quality inspection process and was willing to compensate for all losses caused by such incidents. ?Of course, higher levels must also nod, but Chang Haonan reported this matter when the J-10 made its first flight last year, so there will be no problem. Is it going to have an impact...there will definitely be some. Xiao Chang, now that the No. 01 and No. 03 prototypes of Project 10 have entered the test flight stage, will any major changes to the aircraft design at this point in time affect the overall progress of the project? ?Just when the topic about the J-10 came to an end, Lan Xinzhi stood outside and knocked on the door. So he just nodded and replied: Then you first ask Rong Fei to prepare the relevant documents in advance. Then Minister Cao and I will sign directly. We will try our best to make the connection as seamless as possible without delaying the progress of the work. Chang Haonan is not a fairy. To redesign the entire structure of the aircraft in the near future, it will definitely require a lot of people from the original project team: For example, more cables and air circuits can be arranged inside the wing, and two pylons can be added, which can also leave margin for replacing a phased array radar with a heavier antenna in the future. ? Equivalent to the J-10, which is my country''s first independently developed third-generation aircraft, but it already has 20 years of test flight experience as a reference, so it is naturally easier than trying to figure everything out from scratch. ?If there are major changes to a major equipment research and development project like Project 10, it must be signed and approved by the Commission of Science, Technology and Industry for National Defense and the General Armament Department at the same time. In news sent back from the Consulate in Marseille, NSK Group announced that it accepted the conditions proposed by Eurocopter and Fiat Group, and agreed to provide the same level of compensation to all other users who had similar problems. ??When the news reached China, Chang Haonan had just finished the component-level testing of Turbofan 10 and returned to the capital. He was reporting to the Science and Industry Committee and Ding Gaoheng on the progress of the project and his subsequent trip to Chengdu. The two people who were sitting in the office were almost stunned when they heard the news. Ding Gaoheng heard this explanation and did not ask any more questions. On this timeline, since Chang Haonan has developed a series of methods to improve test flight efficiency since participating in the 83rd Project, if there are no other problems, the speed of prototype testing will be much faster than in the past. . NSK Groups attitude...changes very quickly? Director Ding, Mr. Chang. ??As he spoke, he placed a telegram manuscript in his hand on Ding Gaoheng''s desk: After all, in the aviation field today, what Chang Haonan said still carries a certain weight. If nothing else, the remaining 200-300 kilograms of empty weight can free up a lot of freedom in the design of other subsystems. However, compared to the improvement in model combat effectiveness, the impact on progress is still worth it. Ding Gaoheng picked up the telegram and read it again: I thought they would choose to fight to the end. Because the NSK Group''s fraud was first discovered in the die forging press project, Chang Haonan, after the initial investigation, the Science and Technology and Industry Committee held an expanded meeting of team members to discuss the matter. The current strategy of digging holes for the Japanese was also decided at that time. So Ding Gaoheng naturally knows a lot of details. Its really not like a Japanese character. ?Chang Haonan actually expected that NSK would change its attitude, but it was a bit surprising to him that it was so natural to slide and kneel. ?Especially when just a week ago, the other party was saying harsh words to Eurocopter and said it would go to court. It seems even more hilarious. "However, I guess it is because they have exerted some domestic pressure." After calming down his almost unbearable mood, Chang Haonan speculated: After all, everyones attention is still focused on the NSK Group itself. If this matter continues to ferment, those good Western reporters dont know what they will continue to dig up. According to our investigation results, this is not the only Japanese company that privately engages in OEM sales or passes off substandard products as good ones. Hearing this, Lan Xinzhi next to him couldn''t help but feel a little anxious: Thenin any case, NSK has admitted this, and has held a special press conference to explain and apologize for the matter. This is a sufficient gesture. Will this matter just go away? ?Chang Haonan instantly caught the key words from his words: Wait a minute, you said they are going to hold a press conference to apologize? Lan Xinzhi, who had never seen the spirit of craftsmanship, naturally did not expect that Chang Haonan''s focus would be here. He hesitated for a moment before nodding: "Well...at least, that''s what the draft says. The time is the afternoon of the day after tomorrow." ifier This news made Chang Haonan sit up straight: "This matter needs to be reported by the media. It is best if it can be on the news. It will be on all CCTV news in rotation and broadcast for several days." Also, we ourselves are also victims of the NSK fraud incident. This matter must be prosecuted in domestic courts, go through the legal process completely, and let the media do a follow-up report! Wanting such a big battle? Lan Xinzhi blurted out in surprise. ??Although Ding Gaoheng next to him didn''t speak, his expression was obviously shocked. Chang Haonan nodded without hesitation: If we want to outperform the Japanese in the international market, at least domestically, we must first break the idol that Japanese companies have built for themselves over the years. Think about it, when we first discovered that NSK Group was committing fraud, even our first reaction was that we couldnt believe it, let alone ordinary people. After so many years of opening up, and with the deliberate momentum created by various media and propaganda, Japanese companies have almost become a belief in our country. This is unacceptable to us under any circumstances! In fact, as a reborn person, Chang Haonan certainly does not have the so-called "hard to believe" problem. ?But after all, Ding Gaoheng was also there at this time. It would be a bit disgraceful for him not to include himself. Okay, Ill coordinate with the Propaganda Department, there shouldnt be any problem. Ding Gaoheng made the final decision and agreed to Chang Haonans plan: In addition to these, should we take some actions internationally? "Of course." Chang Haonan replied almost without thinking: "A great man once said that it is better to chase down the poor bandits with the remaining brave men, and not to use the name of the academic overlord. Now is a good time to beat up the lost dogs, and we must not let them go easily." NSK Group wants to draw all the firepower to itself by bowing and apologizing, but we cannot let them do so. Dont alert the snakes in the past two days, let them relax their vigilance, wait until the day after the press conference, and then use the European media to expose the black materials we have about several other Japanese companies! (End of this chapter) Chapter 605 "A Tragedy Caused by a Bearing" Chapter 605 "Tragedy Caused by a Bearing" The afternoon two days later. Chang Haonan made a special trip to the Science and Technology Commission and sat in front of a TV with Ding Gaoheng and others, preparing to watch NSK Groups press conference on the bearing fraud incident. In the past few years since the late 1990s, domestic television broadcasting technology has made tremendous progress. In 1996, some temporary content (such as the test flight of the J-8C) had to wait two days before it could be made into news. By 1998, it was possible to broadcast some major events on the same day or even live broadcast. Facts have proved that the Japanese''s performance is still very stable. The apology process of Japanese companies in the 1990s was no different from that of more than 20 years later. After the opening ceremony, several main leaders of NSK Group bowed collectively without saying a word. ?This posture directly shocked several other people in front of the TV: But if we do this, how can there be any customers who would dare to buy their products in the future? Wouldnt this company be completely destroyed? Can this still happen? "I finally understand. The only highlight in this whole scene is bowing, right?" ?Several other people were still hoping to watch the excitement, and were ready to see how NSK Group planned to publicize this seemingly unsolvable corporate image crisis. ??The skill of speaking and doing Tai Chi is absolutely perfect. Such a serious problem must be caused by an unreasonable situation within the company... Chang Haonan, who had been holding back his laughter for a long time, finally found the right moment to speak: What they mean is, I know Im wrong, but Ill still dare to do it next time It should be said that in this era, Japanese apology sessions are still not that common. If NSK changes its name or changes its equity later, it may be easy to get away with it. President Fujimoto Che Zurong talks a lot, but there is no actual content at all? ?Another deputy director, Zhang Dongxu, almost spilled the water just now, so he tightened the lid of the thermos cup and said: This is not an admission of mistake at all ??Everyone said something to each other, and the scene quickly turned into a complaints conference. ??If there were barrage software this year, it would definitely be very exciting. "If nothing else, if there is such a big scandal in the company, even if it is just a pretense, someone must be found to take responsibility for it, right?" The result turned out to be good for others. Thisnot necessarily. ?Chang Haonan shook his head and continued to explain: "I estimate that other domestic companies in Japan should have made some guarantees to NSK, such as that they will still make a certain amount of purchases. After all, few end customers will delve into the supply of this product when purchasing a product. Who is Shangdu? ?At about this time, a row of five people on the TV stood up again and bowed towards the camera. I am just a broken person. After gradually calming down, Ding Gaoheng looked at President Fujimoto who was fiercely criticized by reporters in the live broadcast but still responded skillfully with long and difficult sentences, and asked with some confusion: It was all very fresh in the beginning. The Japanese are quite generous when they hold a press conference "This irresponsible behavior has also caused irreparable damage to the company''s reputation. We will definitely give a satisfactory explanation and conduct deep introspection..." However, when these people sat down, the content of their speeches gradually became a little strange. Is this the end? Feel like... your attitude is okay? The lowest ranking person, Lan Xinzhi, is also a bureau-level cadre. If I had known this earlier, wouldnt there have been none of the things that happened next That cant be said. No solution? Thats puzzling! One sentence made everyone laugh, and the conference room was immediately filled with a happy atmosphere. ?Everyone sitting in front of the TV, except for Chang Haonan, who has already guessed how the plot will develop, is already a veteran in the workplace. After our internal investigation, we found that there were some irregularities and omissions in the sample testing and outbound process, for which we are deeply regretful and disturbed Huai Guomo next to him also looked in disbelief: Moreover, it just said that we need to reflect deeply, but it didnt mention how to improve our work in the future to avoid the same thing from happening? ?Then, the on-site host announced that it would be time for reporters to ask questions. ?However, this group of people are still stunned by the nonsense literature. Chang Haonan didn''t say anything, but he just said don''t worry, you will know the value of the bowing part in this press conference later. After a while, Ding Gaoheng took the lead and said: ?Hence, this sudden attack has earned enough film from various media outlets. It was an eye-opener for several people in the conference room today. Thats why we cant be satisfied with this. Chang Haonan further explained his next plan: We must take advantage of his illness and kill him to prove to the world, especially users in the European and American markets, that this incident is not an isolated case of NSK Group, but a common problem among Japanese companies as a whole. Although it is impossible to completely kill the Japanese manufacturing industry in a short period of time, at least the concept of counterfeiting must be associated with them, so that buyers can think of this round of counterfeiting incidents when they see Japanese brands! The TV is still broadcasting President Fujimotos sterile answers, but no one cares about the content. So, this is why you chose the European market as your entry point and then cooperated from domestic? ? Ding Gaohengs question is a bit flattering, and it is very suitable for eliciting the content behind Chang Haonan. So the latter nodded immediately: "Yes, for the European and American markets, Japanese products were synonymous with low-quality and low-priced products more than ten years ago, in the early 1980s. It was only in the past five or six years that Japanese products gradually began to move towards mid-range and mid-range high-end products. Get closer." "That is to say, in Europe and the United States, there are still quite a few people who are deeply impressed by the situation of Japanese products back then, and will be more likely to accept the set of thinking I just mentioned. Even for some people, they may still be I think so, this time it just further strengthened the stereotypes of the past..." ? ? ? "And looking at the domestic market, firstly, the international influence cannot be compared with Europe and the United States, and secondly..." At this point, Chang Haonan paused for a moment, then continued: "When Japanese companies entered the country, they started with a relatively high-end image. Coupled with so many years of image building and the indoctrination of consumers through buying the media, they have formed a strong ideological stamp. If they want to break the situation from within, , its very difficult. But on the other hand, Europe has a higher degree of recognition in the country, a better image, and a stronger ideological stamp. So after they all lose confidence in Japanese companies, we will make efforts domestically, and the effect will be twice the result with half the effort..." This round of explanations can be said to be clear and logical. It''s just that everyone from Ding Gaoheng to Lan Xinzhi felt a little sad. They knew that although some of Chang Haonan''s words were not pleasant to hear. But its all true. Over the years, we have indeed become a little wealthier in general, but for some people, the more their pockets get bulging, the softer their kneecaps get After all, Ding Gaoheng was born in the field of two bombs and one satellite, and his feelings about this are deeper than others. So, our combined punch will not only allow our Chinese companies to physically occupy the market vacancies left by the Japanese, but also to fight a spiritual counterattack! Originally, everyone was just emo casually, but no one expected that Chang Haonan was actually prepared in this regard. Although no one asked, several doubtful glances were already cast towards him. Dont some of our domestic media and some people in the cultural circles like to make up short essays to praise foreign countries? "Stories like "Summer Camp Story" and "Washington Cut Down the Cherry Tree" have even been included in our elementary school textbooks, which is outrageous." Immediately afterwards, Chang Haonan said what he had wanted to do for a long time: "In this case, we will treat others with their own treatment, and find people to write some such articles and publish them in some entertaining newspapers and magazines, at least to counteract them." His ideas are somewhat advanced in this era. Especially for the leaders with technical backgrounds present. ?But the truth is not complicated. So, someone quickly figured out the joint: Xiao Changs approach is good. If we only rely on official news for reporting, it will definitely not be effective for people who dont pay much attention to the news or are unwilling to believe the news. But written into short stories and interspersed with entertaining content, it can have a subtle impact. Thats the truth. ?Seeing that someone finally got his idea, Chang Haonan showed a satisfied smile: Also, we dont make up stories, we just write about things that happen in the real world. "For example, this time NSK Group shot itself in the foot. I think I can write a story called "The Tragedy Caused by a Bearing" to tell everyone that you must pay attention to integrity when doing things, otherwise, even if It is a huge multinational company, but it may have ruined its plate because of a small bearing! ??As a person with little literary background, Chang Haonan''s story ideas are naturally not original, but come from short compositions he has read in his previous life. It is said that in Japanese restaurants, you have to wash the dishes 7 times. However, there was a Chinese student who only washed the dishes 5 times in the past and was fired. ?Although the content of the story is purely made up, the methods and methods can still be used for reference. ?So, Chang Haonan used it and slightly modified it, and then went back to disgust the other party. ?However, for other people who have not seen this routine very often, this is simply a dimensionality reduction blow. ?The Director of the Department of Personnel and Education, who is responsible for publicity work, immediately brightened up: "I suddenly felt that this kind of short story seemed... quite interesting... at least it didn''t seem very stereotyped on the surface." When he said this, he was slightly embarrassed. ??However, judging from the expressions and eyes of other people, it seems that they all have similar thoughts to him... Then, he asked tentatively: "How about... we create a publication of our own that publishes content that is not nutritious and is just for fun, and then... intersperse a few targeted stories in each issue?" Its a propaganda position. If we dont occupy it, others will occupy it. Its better to be proactive and screen out some submissions with ulterior motives. At the level of the Commission of Science, Technology and Industry for National Defense, it naturally has publishing authority. In fact, they even have their own magazine. Its just that no one has ever thought of doing this in the past. ?This slightly unrestrained idea made Chang Haonan stunned. ?Soon I realized it was completely feasible. If I remember correctly, the "Double Tree" magazine, which became famous in later generations and produced countless short articles, has not yet been launched. I think its totally worth a try. ?Chang Haonan also tentatively expressed his affirmative opinion. ?Of course, although he is called a supernumerary deputy director, he is not a real deputy director after all, and he has no decision-making or voting rights. But its off to a good start. Then, starting from Ding Gaoheng, everyone nodded. So, this matter, which was originally a bit of a side issue, was settled in less than five minutes from the first time it was raised. Sowhat should the magazine be called? This question was originally asked to Ding Gaoheng and several deputy directors. However, they almost looked at Chang Haonan in unison. The meaning is very clear Since you were the one who brought this topic here, I guess you already have a rough draft, right? Actually, the latter doesnt really exist. ?But now that the atmosphere has reached this point, he has no choice but not to speak. "How about calling it "Double Tree" instead?" (End of this chapter) Chapter 606 It is better to leave the remaining brave men to chase the poor bandits Chapter 606: It is better to use the remaining courage to chase the poor bandits Publishing magazines and promoting propaganda is, after all, not the main business of the Commission of Science, Technology and Industry for National Defense, nor is it the main purpose of holding this meeting today. ?Therefore, after the initial direction was set, the topic naturally returned to the serious direction. Ding Gaoheng cleared his throat: "Having said that, after NSK''s press conference, no matter how tough they were, they finally admitted that they had committed quality fraud. I estimate that the next few days should be a small climax of reports. What specific information does Xiao Chang have? No plans?" "In addition, I remember you said before that many of these Japanese companies purchase products from our country and then sell them with their own packaging and OEM labels. This matter must also be exposed, right? Only in this way can we Companies are going overseas to occupy the current ecological niche of Japanese products. Its natural. ?Chang Haonan nodded immediately and explained to everyone: Actually, I was originally going to treat the OEM issue as part of the package against NSK, but their attitude changed too quickly and caught me off guard, so I didnt have time to use it. In addition, I actually also considered that the NSK Groups setbacks this time were quite severe, and they were all related to relatively sensitive quality issues. Originally, after this year''s conference, Ding Gaoheng should have transferred to a certain idle position and retired to the second line to enter retirement. Fortunately, we have a lot of evidence in our hands. There is no need to look at NSK for profit. We can switch to another one..." This concern is very real. Just like this time, if we can proceed exactly as Chang Haonan said, then several companies that are not under the management of the Equipment Industry Department, and even private enterprises such as Xingcheng Special Steel, will more or less cooperate with the Science and Technology Commission The system is involved. Because it is not static, but is highly related to the level of leadership. Although the scope of authority of this newly established department is still relatively limited, it is well known that within the system, the difference between having a grip and not having a grip is a natural chasm. As for whether the grip is large or small, it is not that important. "If the feedback is still not obvious enough, then Luoyi Bearing Group can also sue NTN Group in the same way. Although they also have quality problems, they have not reached the level of NSK, and they are suppliers of almost all Nissan and Volkswagen. , has a closer relationship with ordinary people in Europe. In this way, I will contact Xingcheng Special Steel Group through personal connections and ask them to go to EU countries to sue Japans Chunakajima Special Steel. A few people have basically seen through the fighting power of the Chinese media. On the one hand, being able to personally make the Japanese suffer a big loss is always a happy thing from an emotional point of view. The expression on Ding Gaoheng''s face was filled with uncontrollable joy. On the other hand, due to the existence of the Equipment Industry Department, this matter has huge benefits even from the perspective of departmental interests - ?Hence, the other people nodded in agreement after hearing this. Speaking of this, Chang Haonan lowered his head and pondered for a moment, then raised his head again and said: ?You may not see the difference in the short term, but it will change over time... "The latter has not found any falsification of quality inspection reports so far, but about a quarter of its shipments are direct OEMs. Its users include many second-tier European bearing brands like Rubix, and some are very famous. European tool brand, its influence is still sufficient. "If we state at this juncture that they purchased products from Chinese companies and OEMed them after false labeling, it will easily give people the impression that our products are fake. If the other party launches another attack at this time, If the media goes on the offensive and slightly processes the facts, we may end up being passive. There is no hope. "It seems that Xiao Chang is well prepared. This is to completely block the Japanese''s retreat..." So, its best not to bind Ice Axis to NSK. If nothing else, for such a big thing this time, except Now, because the huge changes in the country''s overall industrial system require people who are familiar with the situation, he still remains in the position of director of the Science and Technology Commission at the age of 67. ?Even though the level has not changed, the inner meaning is completely different ?Different levels correspond to different retirement ages, which means that he may have a chance to take another half step forward. In short, the mentality of a person who is striving for a future and a person who is waiting for retirement is naturally different... ?Unsurprisingly, NSK Groups unique apology conference quickly caused an uproar There is no responsible person, no changes to the quality inspection system, and no specific compensation plan. ??Oh, your apology is really just an apology, bowing and saying "Private Marseille" and that''s it? The attitude is very good, but I will do it again next time. Can you please translate for me, what does "there are some irregularities and omissions in the sample testing and delivery process" mean? Meaning that your company is completely unaware and they are all temporary workers? Want some face? ?Eurocopter, which was the first to discover the problem, didn''t say anything yet, but Fiat stopped immediately. ?Although tests have proven that the virtual standard performance will not affect vehicle safety, their losses are still the largest in the whole matter. Therefore, almost as soon as NSKs press conference ended, the latter held its own press conference, stating that it would never accept such an explanation and would definitely safeguard market rights and so on. Immediately afterwards, a huge compensation request of 230 billion Italian lire (approximately 140 million U.S. dollars) was submitted. Huge indemnity with European characteristics, you have to taste it. Obviously, in the face of a lot of complete evidence, it is almost impossible for NSK Group to win the case, and the most it can do is reduce the amount of compensation. ?Aside from the legal proceedings, criticisms from peers in the industry also came one after another. Even many Japanese companies have joined in, some of which are particularly loud. In short, no matter what the outcome is, after nearly a month of turmoil, the reputation of NSK Group has basically collapsed, both in the industry and in the minds of consumers. Some people have even begun to pay attention to specific parts suppliers when purchasing bulk consumer goods such as cars. But on the other hand, the war of words between Fiat and NSK has indeed attracted the attention of almost all European media. People tend to think that this should be an individual case. Dont you see that colleagues all over the world are scrambling to draw a clear line with them. ?As the exciting war of words gradually turned into complicated and boring legal issues, the heat of the incident gradually began to cool down. After all, people who eat melons are also prone to aesthetic fatigue. They will soon get bored if they watch the same thing every day. ?Its just that a great screenwriter can always make the plot climax one after another. ?Two companies from China, Xingcheng Special Steel Group and Luoyi Bearing Group, sued Japan''s Chunakajima Co., Ltd. and NTN Co., Ltd. in local courts in Germany and France respectively. The two claimed that a considerable part of the products sold to Europe by the latter two in the past six months were purchased from them and re-branded for export. Even the inspection characteristics of the materials used in our products are also attached. Each user or manufacturer can use this feature to determine whether the product in hand is an original Japanese manufacturer or an OEM product from China. ?Originally, this kind of news might not actually get much attention. ??Naihe happened to catch up with the war of words between Fiat and NSK. The onlookers who had just tired of the previous one would naturally be attracted by this event of the same type but with a different plot. Chang Haonan was not even satisfied with the monotonous print media and TV news, and instead sponsored several TV programs. In the program, the host purchased several batches of wheel hub bearings marked with the NTN brand from the after-sales service of different car brands, and sent them directly for inspection without unpacking them to see if there were any samples that met the characteristics stated by the two Chinese companies. As for this test, someone will inevitably break the defense. (End of this chapter) Chapter 607 Chinese products come to Europe! Chapter 607: Chinese products enter Europe! In fact, in the past few days, when colleagues from all walks of life were beating down the ducks and accusing NSK Group of fraud, NTN, which is also a Japanese company, was at the forefront and the loudest group. The main reason for this behavior is of course because of a guilty conscience. Now shouting louder can slightly reduce the suspicion. ?But apart from that, it also got them a lot of attention. ? Even many customers who were originally NSK Group started to contact NTN. After all, the premiums for these first-tier bearing brands in Europe are indeed higher. ??If there are alternatives with suitable quality and price, no one will have trouble with money. After all, the two companies are both Japanese companies and have similar product cost-effectiveness, performance calibration and usage habits, so the handover should be smoother. It cant be that if one Japanese company has a problem, another Japanese company also has a problem, right? ?Then why dont you say that the entire Japanese manufacturing industry has problems? How is it possible? ??If there is such a big problem, shouldn''t it have been discovered long ago? ?So, under the guidance of such simple logical deduction, NTN Group''s stock price and performance actually experienced a rise against the trend in the past few days. ?Once handled improperly, this black swan event may even directly disrupt the replacement schedule of the entire group''s brands. But according to the original plan, a large number of European and global models that will be updated next year will be put into use. Since the purchase price from China is low enough, even so, there is still a rather exaggerated profit margin. ? A month ago, the group suddenly received a piece of information from its partner Jinling Motors in China, indicating that NSK Group, one of its important suppliers, was suspected of falsifying quality inspection data. ?Although so far, NSK brand bearings are still only installed on non-European models, and Fiat''s market outside Europe is not large, so it has not caused any irreparable impact. As for Volkswagen, Peugeot and other companies that had not included NSK in their supplier list, they all breathed a sigh of relief, and at the same time they were a little gloating. In fact, the performance that was falsely marked in the past was reduced, then downgraded by half a grade, and sold at a lower price. ?Of course, at such a critical juncture, they did not dare to commit crimes too arrogantly and quietly carried out a product upgrade. Headquarters of Fiat Group. Procurement and supply chain director Andrews Guarino is working with his deputies to deal with a daunting list of suppliers. ?This is simply a real hammer. ??If NSK Group was an Italian company, I am afraid that the people in charge would have been taken care of by the mafia. However, after seeing the evidence submitted by China, he immediately realized that the word "suspect" was still too euphemistic. Even if we can get the money back through litigation later, it will take a lot of time, and this does not include the production that is bound to be affected in the short term due to changing suppliers. Director, according to the report from the Jinling Fiat joint venture, they have been using two Chinese brands of bearings in the field of commercial vehicles to replace the NSK Groups models in the field of commercial vehicles. In short, from that day on, Guarino hardly slept well. Italy, Turin. At the beginning, Guarino actually didnt believe it. After all, although Fiat''s initiative to expose its shortcomings this time has earned a wave of reputation, the compensation is also heavy enough. Deputy Director Robert Gianni opened a folder and handed it to Guarino: Judging from the feedback data in the past six months, no problems have been found, and all data meet the requirements. Moreover, they will sample each batch of goods and randomly hand them over to different third-party agencies for testing. Obviously, the last sentence is very targeted. ??Guarino, who had always frowned, did not respond immediately. Instead, he took the folder and quickly browsed the contents of the report with his head lowered. "Half a year...isn''t it a little short?" ?He hesitated: If something goes wrong again, then next years replacement of our new models may really have to be put on hold The operating environment of commercial vehicles is generally harsher than that of passenger vehicles, but even so, just a few months cannot be regarded as passing the market test. Now Guarino is a bit like being bitten by a snake once and fearing the well rope for ten years. "Two days ago, NTN also sent us their supply orders. I think they are all Japanese companies, and the transition will be relatively easy..." He stopped mid-sentence. Because I saw the price column in the report appendix. ??If he didn''t trust his deputy''s ability to do his job, Guarino would even wonder if he had made the wrong decimal point. It is true that this data is the domestic price in China. Considering that Jinling Automobile and this company called Luoyi Bearing Group are both their state-owned enterprises, it may even be an internal price. If exported to Italy, there will definitely be other costs involved, and the final delivery price will definitely be higher. But he has been working hard in this industry for more than ten years. In just a few breaths, he can roughly estimate that even taking into account the intermediate costs and the profits that the other party must set aside, the profit will be better in his own hands. The quote given by NTN was about one-third cheaper. Considering that millions of cars are sold every year, this is obviously not a small amount of money. Otherwise, we can consider using Huaxia Enterprises as an alternative supplier, and have them provide 5% or 10% of the products for trial use. If no problems are found within a few years, we can gradually expand the scope of application? Giani obviously saw where his boss was struggling and came up with a compromise. Indeed ? Guarino''s brows finally relaxed a little, and just as he was about to nod, he heard the sound of rapid footsteps on the floor with high heels from outside. Immediately afterwards, there was a knock on the office door, and the anxious-looking secretary stood at the door and poked his head in. Simone? Guarino and Gianni turned their heads together. "Director, the TV news... is broadcasting about several other Japanese companies. I think... you should take a look." ?Secretary Simone was breathing rapidly, and she had obviously jogged all the way. The two people who were sitting next to the coffee table looked at each other. Obviously, judging from Simone''s appearance, this is not something that can be explained clearly in a few sentences. ?So, the three of them rushed to a conference room downstairs as quickly as possible. ??A TV inside is showing business news. Two Chinese companies sued a Japanese company for infringement of their goodwill rights The right to goodwill should be studied more by the legal community. ?In common law countries, there are some relevant cases, but in civil law countries, there is not much reference on how to define, confirm and protect goodwill rights. ?Hence, when he saw this title, Guarino was stunned for a moment. ?However, after all, he had been in a high position for a long time and could not lose his composure over such a trivial matter. He quickly understood the meaning of the news. Two Japanese companies, without the knowledge of the Chinese company, put their own labels on the products produced by the latter and sold them all over the world. Therefore, the plaintiff believes that although there is no economic problem with this process, the intangible assets such as the brand image brought about by the product sales process have been deprived by the defendant company, so it requires compensation, an apology, and a formal statement of events to restore its reputation. . "Ah" ?Guarino sneered and shook his head: Which two Japanese companies did this? Its really The disdainful words stopped abruptly in the middle of speaking. Because the next scene on the TV was cut to an interview with the legal personnel of the defendant company. The subtitles below clearly read (Defendant) Legal Counsel of NTN Co., Ltd. "ah?" ???Guarino, who just had the mentality of eating melon, immediately became numb: These Japanese companies...are not all the same, right? (End of this chapter) Chapter 608 Overdraft and repayment Chapter 608 Overdraft and repayment As the saying goes. Again and again and again, not again and again and again. When a company has problems, it can be regarded as an isolated case. Two families can also be interpreted as small-probability events that happen by chance. However, now so many Japanese companies have experienced thunderstorms one after another in just one month. ??And they are all related to quality issues. That''s worth talking about. It cant be a massive number of cases, right? ?So, faced with the undoubted facts, Guarino finally began to realize that something was wrong. Director, just as the news is being released, some good media are already preparing to make a program on this matter. ?After the main content of the news was played, Simone took two steps forward and switched the TV screen to the segment just recorded. ?Guarino nodded slightly: You can pay attention to this program and remember to record it when the time comes. ?The Fiat Group has directly become a pure clown. "OK." Stop it for now and prepare to submit a report to the board of directors to explain the recent situation clearly. Remember to focus on the Japanese problem and pick out the two of us. Well...Director, lets change to a new supplier... Although legally speaking, the NTN and Xingcheng Special Steel matter has just begun, and the claims of the two Chinese companies must be true without substantiating them. ??There is no need to even analyze the evidence. Judging from the fact that NTN Group was hesitant during the interview and did not dare to respond directly to the questions... ??Guarino leaned his whole body on the back of the chair, and his whole person looked more vicissitudes than before: In addition, we can already send people to have informal contact with the Luoyi Bearing Group in China. As long as the board of directors nods, we will start formal negotiations. ? Guarino felt terrified when he thought that he had almost regarded the NTN Group, the company behind the scandal, as his next main supplier. They said they would purchase several batches of wheel hub bearings marked with the NTN brand from the after-sales service of different car brands and send them directly for inspection to see if the bearing materials have the characteristics mentioned by the two Chinese companies. ??Guarino took a long breath and sat down on a chair without even returning to his office. Nine times out of ten it is true. ?That was a preview of a car show. "Um" But for a senior practitioner like him, he will naturally have his own judgment outside of the law. Deputy Robert Gianni, who had been silent just now, was a little confused by the sudden news and asked hesitantly: ????????????????????????????????????????????????????? Its in vain that I just wanted to find another Japanese company to replace NSK Group Simona nodded. After confirming that there was nothing else to do, he left the meeting room. ??Although it was Giani who first proposed to include Chinese companies in the supplier list, such a drastic decision was obviously beyond his expectation: Uh maybe its a little too hasty, after all, the result is still In the middle of speaking, he was interrupted by his boss waving his hand: No need to wait for the result. I kind of understand why Jinling Fiat said that using bearings produced in China instead of Japanese models has a high degree of matching. "They are all products from the same factory and the same assembly line. If you replace yourself, the degree of matching is not high..." At this point, he couldn''t hold back himself and laughed out loud. By the way, theres one more thing. After calming down a little, Guarino emphasized another sentence: "In the future, for all suppliers, whether they are from Europe, North America or China, even if they make slight concessions on other conditions, they must clearly state it in the contract. We will conduct random inspections on every batch of goods! " He was afraid. The loss cost is high. That is a matter for the marketing department. Their supply chain department really can''t afford such trouble. Speaking of the director, will there be more intensive special inspections of Japanese companies in the future? Giani took out a notebook from his pocket and asked while writing down it. But there was no response for a long time. He subconsciously raised his head and found Guarino across the conference table looking at him with compassion. Looks of caring for the mentally retarded.jpg ?After a moment of silence, the latter finally spoke again, with a decisive tone: From now on, as long as I am still in charge of procurement and supply chain, I will never deal with any Japanese supplier companies again! As for those who have signed the contract now ?Guarino rubbed his chin in thought. Although he has blacklisted all Japanese companies in his mind, from a legal perspective, as long as the other party has no real fault, it certainly cannot break the contract casually. But the current situation obviously requires him, the supply chain director, to conduct risk control in advance. Soon, he thought of a way to get the best of both worlds: Giani, please contact the quality inspection department and ask them to focus on checking the Japanese suppliers we currently have business relationships with to find out what is wrong with their products. Especially those parts involving vehicle safety, such as Takatas airbags, must be strictly investigated. In addition, I remember that the French PSA Group also has many models using Takata airbags. You can also contact them to see if you can jointly put pressure on them and change the supplier. What he said was very clear. Let the quality inspection department check "where is the problem" rather than "whether there is a problem". In other words, you have to find some differences for me. ??It would be best to terminate the contract directly and get some compensation if you take a step back. Okay, Ill do it right away. Giani looked at the dense items in his notebook and breathed a sigh of relief. In the next period of time, I am afraid it will be difficult to have a stable life... Compared to Fiat, who was just afraid, it was the Germans who really broke through the defense. They originally wanted to have fun watching their Italian and French counterparts, but ended up eating the food right at home. You should know that the proportion of NTN bearings used in Volkswagen Group models is much larger than that of NSK bearings used in Fiat Group. Huaxia, Commission of Science, Technology and Industry for National Defense. ?Lan Xinzhi hurriedly walked into Ding Gaoheng''s office holding a document. ?Chang Haonan was also inside at this time. "Mr. Chang, the German Volkswagen Group asked us through the joint venture in China whether we can make public the relevant evidence that NTN and Chunzhongjima have falsified the origin of their products, and... they also want to know whether NTN, in addition to its origin, can There are instances of fraud on product performance. Hearing this, the other two people in the office smiled almost at the same time. Disclosure of evidence still requires contact with courts in Europe, but considering that we are prosecuting in Germany, it shouldnt be a big problem and we can agree. Chang Haonan thought for a moment and then replied: "As for whether product performance fraud exists, we can hold them off for a while and say that we are also sorting out the evidence in this regard and cannot provide it for the time being. We will not mention this matter until several of our Chinese brands have established their position in Europe. Its not too late. Ding Gaoheng took the letterhead printed on the Spring City Public Letter, took advantage of Chang Haonan''s reply, read it from beginning to end twice, and nodded with satisfaction: It seems that the effect of Xiao Changs action this time is immediate! As he spoke, he flicked the documents in his hand with his fingers: The Germans can no longer sit still... Lan Xinzhi, who had just recorded Chang Haonans opinions, raised his head again: Not only the Germans, but almost the entire Europe are now investigating Japanese companies in the supply chain, and have uncovered a lot of things that we dont even know about. "For example, Takata Group''s airbags were found to produce sharp fragments during the explosion process, directly threatening passenger safety. Flame-retardant materials produced by Toray Group falsified the flame-retardant coefficient test and failed to pass the test. Metals produced by Hitachi Chemical Group The material and mechanical properties are unqualified..." There are still some things that we have not collected and havent had time to sort out. In short, the two major European automobile and aviation industries have basically blacklisted numerous Japanese companies. Hearing this long list of contents, even Ding Gaoheng sighed: Its really unexpected...this image of Made in Japan didnt last even a month... ?Chang Haonan was certainly mentally prepared for this. ?Especially things like the air bag door, which were very big incidents in my previous life. If you come out to fool around, you will always have to pay back... (End of this chapter) Chapter 609 Torch quality certification system Chapter 609 Torch Quality Certification System What has happened in the past month can be summed up as - Japan fell, and China was full. ?Of course, strictly speaking, it is far more than just one country that benefits from this. ?At the end of the 1990s, although Japan has entered the so-called "lost XX years" stage, people''s cognition generally lags behind compared to the real world. Hence, Japans overall international image is still that of a developed country with good momentum of development. For European and American countries, which are both developed countries, this kind of perception has inherent filters. Coupled with a certain cost-effectiveness and brand (story) price (thing) value, As a result, Japan''s manufacturing industry should have been in a strong stage in the international market in this year, and even in the next ten years. In the original timeline, this situation lasted until about twenty years later, when China''s manufacturing industry gradually rose and began to squeeze out the living space of Japan and South Korea. However, today, large-scale counterfeiting has been exposed in advance by Chang Haonan Design, and has had a very concentrated impact. Many Japanese brands have not been able to completely get rid of their past image of low quality, and have been reverted to their prototypes. This directly leaves a huge market that is even in the blue ocean stage. On the other hand, this is also conducive to the formation of a situation of using more to defeat less. However, because Chang Haonan planned this incident, China must be the most well-prepared and benefit relatively greatly. ??Anyway, so far, almost all countries are adding insult to injury, not only intending to encroach on Europe''s mid-to-low-end market, but also launching domestic investigations into several involved brands. Otherwise, no matter how big the news is, if the impact cannot be followed up continuously, people''s memory will be very short. It can be said that any country with industrial capabilities and relatively low costs can get a share of the pie. Considering that Japans financial industry was actually basically finished a few years ago, how can a country that cant go down both virtual and real paths develop... Smiling to death is not a problem that Chang Haonan needs to consider. ?Although the contents of the report are all straightforward, combined with the recent victory in the international market, I still feel very happy inside. On the one hand, based on Chinas current overall industrial level, except for some key areas, it is indeed impossible to fully fill the market vacancies left by the Japanese. This is something Chang Haonan is happy to see. In this case, it is naturally best to mix the water. Similar to leaving a good plan, as long as Lan Xinzhi follows the instructions, it will not be difficult to end it smoothly. Mainly submit a plan for subsequent related miscellaneous work. Otherwise, after arriving in Chengdu, the work intensity will increase again, and there will be many field tasks, so it is easy to be unable to contact people. ?Before leaving for Chengdu, Chang Haonan made a special trip to the Science and Technology Commission. Ding Gaoheng lay half-back on his office chair, leisurely reading the report in his hand page by page, and said with a satisfied tone. ??If the Japanese really make a comeback, it will definitely be more difficult to deal with than South Korea, Brazil, Turkey, and a group of Eastern European countries. It would be bad if it delayed the business here. After the dust settles this time, our new department of Equipment Industry Department should be completely established. In short, after a round of extreme operations, although the Japanese manufacturing industry will not be completely crushed, it is certain that the latter will definitely go downhill twenty years in advance. Its just that, after all, I am already over 60 years old, so it is not convenient to show it openly: First there was the joint venture established by Torch and C.B. Ferrari, and then there was the seizure of Japanese companies share in the European market. Everything was perfect both internally and externally, and there is nothing to criticize anymore. At the meeting when the Equipment Industry Department was first established, opposition voices mainly focused on two aspects. First, the existence of such a department is obviously against marketization and is not conducive to China''s integration into the international market. Second, it is believed that excessive administrative intervention in the industry will lead to institutional rigidity and unfair competition, and ultimately harm the development of the entire industry. Its all the same old thing. But in this era, this rhetoric is very effective. It can be said that if the Economic and Trade Commission had not jumped out in advance to lift the roof and attracted a wave of firepower, the "window-opening" behavior of establishing the Equipment Industry Department might not even have been passed smoothly. Therefore, it seemed at the time that it definitely brought enough pressure to the Committee of Science and Industry. If you really dont do it well, something might happen. Ding Gaoheng himself may be affected. ?However, in just over two months, all worries disappeared. The two things Ding Gaoheng just said can be said to be a direct slap in the face of all doubters You said it is not conducive to China''s integration into the international market, but our Equipment Industry Department takes the lead in deep technological integration with foreign companies. You said there is unfair competition that may damage the development prospects of the entire industry. However, we have successfully entered the European market with a group of companies that are not part of the Science and Technology Commission system, including even private companies such as Xingcheng Special Steel. Is there anything else to say? ??Although the rumors at the media level will certainly not disappear, they will even intensify with the defeat of Japanese companies in Europe. But these people cannot affect the overall situation at all. The risks hanging over the Science and Technology Commission and Ding Gaoheng himself have been basically eliminated. Actually, when I first planned this event, I never thought it would be so successful. Chang Haonan is naturally in a good mood: Originally, I just thought that we could create a few brand names from the relatively well-developed industries in our country, so as to leave a hook and pave the way for future development. Unexpectedly, the Japanese committed suicide and sent a big assist. Some countries even attacked more ruthlessly than us..." The country he mentioned as more ruthless than us actually refers to South Korea. ??If China is still making a fortune in silence, then Korean companies, which are already fighting with Japanese companies in the mid-to-low-end positioning, are completely blind. Speaking of which, what happened to the helicopter that Icefly cooperated with Eurocopter? ?At this time of summing up after the war, Ding Gaoheng suddenly remembered the NH90 project that was the trigger of this matter. Similar to our corresponding model Z-12, we have chosen Ice Axis Group as a new supplier, and the new No. 03 prototype is almost ready. Chang Haonan happened to meet Liu Hongbo, who had returned to China, before coming here this time, so he answered almost without thinking. Obviously, this efficiency surprised Ding Gaoheng: After all, the NH90 is nominally a military model. If we directly use our countrys suppliers, we wont encounter any resistance? Of course there is resistance, but after such a round of troubles, NSK almost exited the European market, and then Ice Axis Group took advantage of the situation and bought the RHP bearing brand from them, so that on paper it is considered a British supplier. ?Chang Haonan couldnt help laughing when he said this ?This RHP has actually gone bankrupt a long time ago and naturally has no production capacity of its own. So all the bearings of this brand are actually sent by Ice Axis and then rebranded... After going round and round, the NH90 still uses OEM bearings produced by Huaxia. After chatting about some light topics, Chang Haonan changed the subject: But having said that, the Japaneses defeat in Maicheng this time can be regarded as a wake-up call for us. All my strategies, in the final analysis, rely on the fact that the quality of their own products is not up to par, and they do whatever they can to reduce costs. Now it is our companys turn to gradually enter the European market, and we have to guard against this problem..." As soon as these words came out, Ding Gaoheng and Lan Xinzhi suddenly became serious. Chang Haonans concerns are obviously justified. In these years, enterprises in China, especially small and medium-sized enterprises, are engaged in counterfeiting... Not too optimistic anyway. If the barbaric development is really allowed to continue, it is not impossible to repeat the mistakes of Japanese companies. ?Especially when the other party must still be planning revenge. After a long time, Ding Gaoheng opened his mouth and said: In the next year or two, the export license approval procedures will be more complicated, and the goods themselves will also receive focus from the quality inspection department. The problem may not be too big. "But as our level of openness continues to improve, especially as we are about to join the WTO, administrative restrictions on exports must be relaxed. We really have to find other ways to restrict or regulate these enterprises. We cannot It ruined the image we had worked so hard to create..." Lan Xinzhi, who had not had his turn to speak just now, suddenly lit up: Is it possible to formulate a voluntary, non-mandatory certification system? Brands joining this system will have to undergo our more stringent quality inspection, which is equivalent to an endorsement. This way, even if some companies do not engage in personnel work, it will be convenient for us to cut off from them, so as not to cause a series of problems like NSK. We can consider... In fact, his original idea was that the Equipment Industry Department would come forward to establish this system, but he realized halfway through blurting out that it sounded like a struggle for power, so he felt a little stiff for a moment. Fortunately, Ding Gaoheng and Chang Haonan are not unreasonable people, and they can also guess what he did not say later. You want the Equipment Industry Department to come forward to do this? The former asked with a smile. Uhright. Lan Xinzhi nodded a little awkwardly: My consideration is that companies such as Xingcheng Special Steel, Luozhou Group and Baoshan Iron and Steel have already had deep interactions with our department, so communication will be easier..." Chang Haonan, after some thought, shook his head: This idea is good, but it may not be appropriate for the Equipment Industry Department to come forward. "No matter what the actual situation is, the name of this department is, after all, the Equipment Industry Department of the Commission of Science, Technology and Industry for National Defense. Both in name and in essence, it is too close to the military and the military industry system, making it inconvenient to do business with foreign countries, especially with Western countries. When he said this, the other two people also figured out this relationship: "Indeed it is" Military industrial units have their own advantages and disadvantages, which are inevitable. Since you want to make other peoples money, you must try your best to dispel other peoples concerns. If the military industry system is not suitable... Ding Gaoheng sat up straight suddenly and looked at Chang Haonan: How about your Torch Group, together with the Science and Technology Commission and the Chinese Academy of Sciences, establish a non-governmental association or committee that is more research- and academic-oriented? (End of this chapter) Chapter 610 A third-generation machine that belongs entirely to China Chapter 610: A third-generation machine that belongs entirely to China Ding Gaoheng''s sudden suggestion made Chang Haonan confused for a moment. ??If we look at this matter alone, it is indeed a relatively safe approach to organize a certification system in the capacity of the Science and Technology Committee (now restructured into the Ministry of Science and Technology) and Torch Group. Although almost every practitioner in the machinery manufacturing industry is now well aware of the relationship between Torch Group and the Equipment Industry Department, or the Commission of Science, Technology and Industry for National Defense, at least in terms of the administrative system, the two are completely independent. ?This will not only ensure that the Science and Technology Commission has the necessary control over quality inspection and brand certification, but also make the military-industrial color of this system relatively light, reducing the concerns it will bring to overseas customers after entering the international market. ?However, for Chang Haonan himself, or the Torch Group, this can be considered a burden. On the one hand, at least for a long time to come, his main energy will definitely be on scientific research and project development. ??The purpose of establishing Torch Group in the first place was just to provide a good operating environment for the TORCMultiphysics software that requires long-term maintenance. ?Although the subsequent business scope gradually expanded, it still maintained a relatively lightweight operating model. The entire group, including the Torch-C.B. Ferrari joint venture, accounts for more than 85% of the business sector. It is a very exaggerated proportion. If you take on this big job, it is necessary to organize a large enough independent quality inspection team. Otherwise, if you rely on a third party for quality inspection, it will be difficult to guarantee authority and independence. But this is not in line with the development philosophy of Torch Group. On the other hand, Chang Haonan, who has experienced the future, knows very well that this kind of so-called "civilian association" organized mainly by enterprises often changes internally in a short time due to the lack of rigorous organizational structure and effective supervision. It''s a mess. In the end, if it doesnt work well, it will not only fail to achieve the purpose of regulating the quality of the companys products, but it will also be counterproductive. "Director Ding, let me tell you, there is no need to be so secretive." After thinking for a moment, Chang Haonan said: "Our purpose is just to avoid the military-related nature of this certification system. It can be explained in a straightforward way. It is to use the Chinese Academy of Sciences or the National Ministry of Science and Technology as the certification body, and use the administrative power endorsed by the state to promote products. Standardization and improvement of quality. Now that our Equipment Industry Department has established a firm foothold, I think we dont have to worry too much about the rumors of so-called administrative intervention. Just do it. In fact, this idea of ??his was also tried in the original timeline. It is a national inspection-free product produced in accordance with the "Decision on Several Issues Concerning Further Strengthening Product Quality Work". However, there was something wrong with the direction of the efforts at that time. According to Chang Haonan''s idea, to promote higher-standard quality certification, there should first be a rigorous and more frequent testing process to enhance the brand value of certified products and enable them to withstand higher premiums, and then add more to this process. Earn back the cost. ??However, inspection-free products are actually equivalent to reducing the cost of inspection, embarking on a path similar to that of Japanese companies that reduce costs and increase efficiency to facilitate price wars. In the end, they became a fig leaf for some low-quality products. ?Of course, at this time in the last life, the problem of concentrated counterfeiting by Japanese companies had not yet come to light. On the contrary, it was still on the rise, and the confusion was indeed very strong. The situation today is completely different. According to the recent development trend of the whole world beating down lost dogs, I am afraid that it will not be long before the self-destruction of Japanese companies will be written into the textbooks of business schools and management schools around the world... Thats not the only thing Im worried about Ding Gaoheng did not immediately agree with Chang Haonan''s view. Instead, he held his face with one hand and explained while thinking: "The main thing is that we need a starting point for this certification system, so if your Torch Group is not involved in it, it will be completely independent of the Equipment Industry Department. Firstly, I am a little worried, and secondly, There will be some multi-party management problems..." At this point, the meaning has been made very obvious Outside the Science and Technology Commission system, apart from Chang Haonan, Ding Gaoheng could not be trusted. ?Thats right, although the former can enter and leave the office of the director of the Science and Technology Commission at will and even participate in the leadership team meetings of the Science and Technology Commission on a daily basis, he is not a member of the Science and Technology Commission. As deputy director of non-staff positions, the focus is still on non-staff positions. Lan Xinzhi next to him naturally understood what Ding Gaoheng meant. Are you envious? Thats for sure. Being so unconditionally trusted by the leader is what every migrant worker dreams of. But he also knew that at this time, Chang Haonan must be given a thumbs up: Director Ding, if thats the case, wouldnt it be enough for Mr. Chang to take another position in the Academy of Sciences or the Ministry of Science and Technology? Speak in one sentence. Ding Gaohengs eyes lit up: Thats rightits not a bad idea. Although Lao Song has withdrawn from the second line, his influence in the science and technology industry is still there. Lets operate through him... Chang Haonans eyes were startled: Thisisnt good. ??If he hadn''t suddenly decided to come today, he might have felt that the two people opposite him were playing a double act. Whats wrong? Ding Gaoheng directly performed a beardless version of the beard-blowing glare: "very good!" Thats it, Ill contact the Ministry of Science and Technology in a moment! After making the decision, he looked at the stunned Chang Haonan and comforted him a little: Dont worry, it just gives us a hand to use at critical moments. We dont need you to do anything at ordinary times, and we wont let you be the leader. The latter breathed a sigh of relief. ?If you dont take the blame, its not unacceptable. Thats OK. ?Chang Haonan reluctantly nodded. ?However, as soon as he said the words of agreement, he immediately understood what the danger of the world is. Also, although Mr. Changs Torch Group is not directly involved, I feel that as one of the most internationally renowned technology companies in China, we still have to borrow our name. Lan Xinzhis voice sounded from behind Chang Haonan: Why dont you just call this certification system Torch Project? The implication is that certified brands should be like torches, becoming the direction and example for other domestic companies to make products! It can also correspond to the Torch Plan of the National Science and Technology Commission, and the Ministry of Science and Technology should not refuse it. ?Chang Haonan opened his mouth several times, but he really didnt know what to say. The blame lies in the fact that I just agreed too simply. I didnt expect that there would be such a link later. In short, this matter is settled. ?After the incident of exposing the fraud of Japanese companies basically came to an end, Chang Haonan left the capital and came to Chengdu again after nearly a year. Compared with the past few times when he arrived in Chengdu, Chang Haonans business jet landed directly on the runway of Huangtianba Airport this time. ? Huangtianba Airport is a test airport belonging to Factory 132. Its nature is similar to Beiling Airport of Factory 112, so it saves the trouble of sending someone to pick up the plane from Rongfei. Mr. Song, Mr. Yang. ?Chang Haonan shook hands with Song Wencong and Yang Wei, who had been waiting on the tarmac for a long time: I came back this time to bring you a greeting gift! He said and pointed to a bulging briefcase in Zhu Yadans hand: Whipfan 10, the overall technical parameters of the Taihang engine, are in it! ??The other two people looked at each other and saw the excitement in each other''s eyes. The J-10 is the honor of every employee of Rongfei. It is a third-generation fighter jet that belongs entirely to the Chinese people. The only flaw is that it currently uses an imported engine. Although there is no risk of supply interruption in the foreseeable future, everyone is looking forward to replacing this last core subsystem with a domestic model. Now, this possibility has been placed in front of the two of them. (End of this chapter) Chapter 611 J-10A and J-10E Chapter 611 J-10A and J-10E "Xiao Chang, due to the weather in Qian Province, the comrades from Guizhou Aviation Industry said they would not be able to come here until tomorrow, so our seminar can only be postponed by one day. How about taking a look at the current progress of Project No. 10 today?" After a brief exchange of greetings, Song Wencong, as the host, immediately gave the next itinerary. ??The reason why we have to wait for someone from your aviation industry to come is because the test flight data about the DSI air inlet was tested by three JJ-9 prototypes, so it is all stored there. Engineering aircraft design ultimately requires a certain amount of actual measurement results, and it is impossible to rely solely on wind tunnel experiments. ??Moreover, the more one comes from a computing school like Chang Haonan, the more so. Its okay, Ive been dealing with the Taihang project during this time, and I really havent paid much attention to the situation on the host side. ?Such a big project, no matter how urgent it is, cannot be completed in just one or two days, so Chang Haonan readily agreed. In fact, when the plane landed just now, he saw through the porthole window two fighter jets with distinctive shapes parked on the tarmac on the other side. Sure enough, after simply completing some necessary procedures, the other two took Chang Haonan into a minibus and drove toward the distance. The 132 Factory is also considered a major manufacturer in the aviation industry system. Naturally, it is impossible to produce only a few J-10s. Therefore, Chang Haonan also saw many other very familiar models along the way. Is the oldest J-7 still in production? "We suggested that they directly buy the J-7F or at least the J-7MG, which is more suitable for the low-altitude ground attack mission there, but the other party really couldn''t afford the money. We happened to have a few J-7II airframes, so we put the identification friend or foe device on them. The alcohol anti-icing device has also been dismantled and will be disposed of directly as scrap metal. " ?Yang Wei, who was sitting in the same row as Chang Haonan, also sighed. They couldn''t have collided while flying in formation, right? We dont know much about the specific situation. We only know that things are not peaceful there recently This even includes a J-7 equipped with a large delta wing and air intake on the nose. ?In Chang Haonan''s impression, the opponent should only be equipped with a total of about ten or twenty J-7s and MiG-21s. Among them, the number that can fly must be even less, and they can fall four at a time... ?Song Wencong shook his head and replied with a slightly helpless tone: The separatist forces in the south are making a big fuss. A few days ago, I heard that the Americans launched two air strikes on the grounds that they supported the KB elements. I guess thats how the planes were lost..." There is really no way. You should know that due to the emergence of the J-7F, even the J-7MG, which sold well in the previous generation, has almost no orders. But speaking of which, what did the Sudanese Air Force do to lose four aircraft at once? In the 1990s, Africa could even experience large-scale famine. For a truly third-world country, it was obviously not easy to save money to buy a few new planes. At this time, China itself has to make concessions to the United States in many places. After the disintegration, Mao Zedong still has the unreasonable idea of ??trying to join NATO, so... ??The situation that the United States is the dominant player in the world cannot be changed in a short time. In addition, the Internet era has not really arrived after all, so small-scale air strikes like this will not even be reported in the news. This kind of thing is beyond our reach After the end of World War II, the 1990s was the most difficult period for many small countries. Even Chang Haonan, a reborn person, would not have known about such a thing if he hadn''t asked about it by chance. Some things just dont make sense. He is also the deputy chief engineer responsible for the final assembly and production tasks of the No. 10 Project. He and Chang Haonan had a lot of business exchanges during the first ground test of the J-10, and they are considered acquaintances. Originally, production was supposed to have been discontinued, but the Sudanese Air Force lost four J-7Ns a while ago and needs to replenish its establishment. ?Xu De, deputy chief engineer of Factory 132, who was sitting in the row behind Chang Haonan, replied. Chang Haonan looked out the window and asked slightly surprised. If you fall behind, you will be beaten. This is why even if we focus on economic development, we must build a strong military. I just dont know where Sudan offended the United States this time Obviously, these people sitting in the car did not take the so-called "support for KB doctrine" seriously. ?However, this unintentional remark made Chang Haonan suddenly think of it. ?At the end of last year, Yan Zhongcheng was designing a turbojet 14 aeroderivative gas turbine for natural gas power generation for an oil and gas field project in Sudan. The reason why there was such an urgent project seems to be that General Electric suddenly stopped supplying the LM2500. The superficial reason is that China may obtain spare parts for its naval LM2500 gas turbine through this order. But in fact, it was because Sudan suspended Chevrons oil field exploration and mining rights in the southern part of the country in 1994. And if we connect these things... It seems that it is not difficult to explain. ?It is well known that petroleum can breed mold. Fortunately, at this time, due to the Black Hawk downing incident, Americans still have a lot of psychological shadow on the Horn of Africa, so they should not send ground troops there to calm things down. The leader of the other side, Omar al-Bashir, is after all a ruthless man who personally participated in the Yom Kippur War. Judging from the fact that Sudan immediately came to Rongfei to replenish air force equipment, it seems that they have no intention of changing their development strategy because of this matter. But even so, its not an option in the long run Others are taking risks and pressure to give you this opportunity, but you, in turn, cannot protect the basic safety of the other person. In this case, before anyone chooses to cooperate with you, they must be more cautious. While thoughts were swirling, the minibus finally drove to the other side of the tarmac. Everyone got out of the car one after another. ?The two J-10 prototypes are parked here. ?One of the racks is covered with a classic camouflage tarpaulin. The other one is marked 1003, and it should be the No. 03 prototype that just rolled off the assembly line. Based on the data obtained during the test flight of No. 01, we made some technical adjustments to No. 03 during the manufacturing process. After all, according to our plan, this model will also go through the entire finalization process in the future. Chang Haonan walked closer to the aircraft and took a closer look. Sure enough, he found that the six reinforcing ribs on the air intake had been adjusted to look like the original mass-produced model. In addition to reinforcing it, it can also have some rectifying effect on the air flowing through this area. As for other changes visible to the naked eye, there are not many, only some details such as the landing gear doors. It should mainly be on the flight control system. "In addition, during the test flight, we found that under supersonic conditions, due to the pre-compression effect of the nose on the incoming flow, the part of the belly close to the body will form a bow shock wave, causing changes in the pressure gradient at different locations. Surface layer separation tends to increase. ?Song Wencong stood at the edge of the air intake, stretched out his hand and made a gesture on the upper partition: In this case, the J-7Fs mandibular air inlet does not exist because it is located forward. At present, whether it is a binary adjustable inlet or a pitot tube inlet, the inlet is designed at a certain distance from the belly of the aircraft, so it can avoid this shock wave position. But if it is a DSI inlet, this bow shock wave is bound to have an impact on the air intake, further degrading supersonic performance..." Obviously, after determining the improvement plan for the J-10, Rongfei has already started some technology research and development work in advance. As a fighter jet, although its supersonic performance is somewhat inferior, it should not be too outrageous. ?Especially when the supersonic orientation of the turbofan 10 is specially optimized, it would be a bit of a loss if flaws arise in the design process of the aircraft body. It is really not easy to solve this problem solely by the bulging design of the DSI air intake. ?Chang Haonan patted some dust on his hands that had just been touched by touching the air intake: So it may be necessary to add several vortex generators to the lower edge of the inlet to interfere with the generation of this bow shock wave in advance. As he spoke, he raised his hand and gestured to the air intake of the plane in front of him: The principle is somewhat similar to these six reinforcing ribs. The structure is very simple, but the design requires some calculations. When the comrades from Guihang bring over the test flight data of the JJ-9 tomorrow, we will make detailed considerations. (End of this chapter) Chapter 612 The collision of ideas between two wall hangings Chapter 612 The collision of ideas between two wall hangings ??The reason Song Wencong specifically brought up the topic of bow shock was mainly because he was worried that the treatment of this place would affect the overall project progress. ?After determining the follow-up improvement direction of the J-10 with Chang Haonan last year, the Project 10 project team did not wait for support, but quickly began to carry out some pre-research work based on the existing two prototypes. Because wind tunnel testing alone cannot fully restore all phenomena that occur on real machines. Although the JJ-9 has a lot of flight hours, the supersonic capability of that model can basically only be used to provide students with flight experience. It is difficult to find practical problems with the DSI inlet under high-speed flight conditions. . ?Moreover, it is designed with air intake on both sides, so it is not easily affected by the pre-compression of the incoming head. In this way, we discovered the problem of enhanced boundary layer separation induced by bow shock waves that had not been paid attention to in the past. ?Those who often work on projects will know that the simple and complicated parts are not terrible. The most troublesome thing is that a problem suddenly appears halfway through the project that has never been considered before. It is very likely that a single incident will affect the entire project, and may even cause the entire project to be drastically changed or even terminated directly. ?Although the trouble at hand is not that big, as long as enough time (and computing power of course) is given, it can be solved anyway. But what Project No. 10 lacks most right now is time. So...Comrade Haonan has already studied such technical details? Wellits not really foreseeable, its just a coincidence The other people naturally nodded their heads. As for the improvement ideas proposed by Chang Haonan, we can talk about it later. I published a paper on the mandibular adduction airway two years ago. You should know it, right? "Actually... I discovered at that time that if the position of the inlet is further modified, when it reaches the belly position, after the incoming flow speed exceeds the factor, the boundary layer will be very unstable, and it will become unstable with a little interference. will be separated." ??If it really cannot be done in a short time, then let Project 10 serve in its current structure first and solve the problem of the Air Force''s lack of third-generation fighter jets as soon as possible. So, Song Wenchong had even made a plan. Then, he saw several curious eyes around him. ?Song Wencong also suddenly realized: No wonder you designed the combination of the conical front body and the air intake to be so... special. It turns out that the key point is this..." ?The so-called special is naturally a euphemism for ugly. Compared to others, Yang Wei, who was standing next to Chang Haonan, had more disbelief in his tone: This foresight and foresight are really admirable I must admit that the design of the J-7F is indeed not considered well in terms of appearance. ?However, now that they heard Chang Haonan give out the solution almost without thinking, everyone around him immediately felt at ease. In any case, the Chinese Air Force is quite large and can accommodate enough sub-models. But the article "Research on the Integrated Layout of Dual-Module Mandibular Inward-Turn Inlet/Conical Front Body" is a classic document of computational fluid dynamics, and Lu Yuying specifically mentioned it in many conferences for a while. I''ve definitely seen all the content. After a short pause, he had no choice but to explain: ?Although everyone has been a veteran of Project 10 since the beginning (except Chang Haonan), no one has personally participated in the development of the J-7F. The former was so praised that he quickly waved his hand. This at least shows that the former has been mentally prepared for this. "I see" Is this... Actually, Chang Haonan just found a random reason. Actually, he knew about the bow shock wave because he had read relevant technical information in his previous life. As for the solution, I really only started thinking about it after coming into contact with Project No. 10. Because the J-10 solved this problem in the last generation around 2010, with the computer computing power at that time, when solving the shape of the DSI air inlet cocoon, it was even possible to directly add one more degree of freedom for optimization. But now we dont have this condition, so we can only use some tricky methods. Who would have thought that after just one operation, even Song Wencong would feel a little enlightened. But it was impossible for him to tell the truth, so he had to skip the middle process and concluded vaguely: In short, I have been studying this issue since that time. Later, when I participated in the 83rd Project to improve the wings of the aircraft, I came up with the idea of ??using vortex generators to delay the separation of the boundary layer. Moreover, in addition to this main function, a well-designed vortex generator can also improve the flow field quality at the inlet outlet and reduce the total pressure distortion at the inlet of the turbofan engine. This part of the content can be said to be watertight. On the one hand, the technicians around Rongfei dont know what happened in the 83rd Project. On the other hand, there is indeed some theoretical connection between the vortex generator and the wing knife... ??If you have to force it hard, thats okay. ifier As his words fell, a uniform sound of inhalation suddenly sounded around him. You should know that although Chang Haonan, including those closest to him, such as Ding Gaoheng, Du Yishan, etc., are a little numb to these things, others are not yet. From the perspective of others, doesnt the explanation just shown mean that others began to think about such complex issues in their junior year? ??Isn''t that why the strong men of Douzong are so terrifying? This joint is actually not easy for Chang Haonan to figure out. ?However, he also felt that he should change the topic. Fortunately, Yang Wei next to him gave an assist at this time. After all, his evolution is quite outrageous to some extent. It is naturally easier to accept similar people if they see similar people. Therefore, while others were still shocked by Chang Haonan''s inhumanity, he had already begun to follow Chang Haonan''s thinking and consider technical issues: From a qualitative point of view, on the one hand, the vortex generator enhances the momentum exchange between the low-energy fluid near the wall and the mainstream to achieve the effect of inhibiting separation, but on the other hand, it also increases the inlet resistance loss, which is considered a design The choice? Seeing that Chang Haonan finally returned to the technical topic, he secretly sighed in his heart that he was worthy of being a real boss. The agility of his thinking was close to physical cheating, and he nodded immediately: "It is indeed the case. At supersonic speed and high incoming flow Mach number, the shock boundary layer interferes seriously, resulting in large flow separation. At this time, the benefits brought by the vortex generator to suppress separation are more obvious, which is reflected in the total pressure recovery coefficient Its just a small loss. Correspondingly, when the incoming flow Mach number is low, the separation is relatively small, and the resistance loss of the vortex generator is more obvious, which is reflected in the greater loss in the total pressure recovery coefficient. So, the design of this vortex generator and the selection of parameter indicators are very important. Fortunately, the total pressure recovery coefficient of the DSI inlet at low speed is almost at a surplus level, and we dont care about a slight loss, so the optimization window is not Its pretty strict. Also, under certain incident angles of electromagnetic waves, the eddy current generator will increase the radar reflection area and destroy the stealth performance. The problem of invisibility is not that big... Another deputy chief designer next to him smoothed his gray hair: "Although the DSI air intake can reduce a certain amount of RCS, if the overall design does not systematically consider low detectability, the benefits brought by just a few detail corrections are not large, so I don''t care about this percentage. A few changes. Its just...I was just thinking about whether I could apply similar ideas to other models. It seems Im going to keep it simple..." ?These sentiments immediately attracted a wave of recognition. ?However, Yang Weis focus is obviously at a higher level than others: Wait a minuteif you think about it from another angle According to our current usual method, the comprehensive distortion index only includes circumferential distortion and turbulence components. However, in the design of DSI inlet including vortex generators, radial distortion and swirling distortion also need to be systematically considered. Case." Perhaps, we should take this opportunity to change our design habits... (End of this chapter) Chapter 613 It feels so good to have so much power! Chapter 613 The feeling of being full of power is so refreshing! ?This level of change, although it cannot be said to upgrade the entire standard, will indeed bring great convenience to the design work. You must know that aircraft design is actually a very complicated job. In addition to people like Song Wenchong, Yang Wei, and Chang Haonan who do the overall design, there are actually many people who are rarely noticed and are responsible for subsystems or more detailed parts. Technical staff. They may not have particularly high talents or incredible abilities, but they are the backbone of a project. To a certain extent, it is also the decisive step of a project. Chang Haonan before his rebirth should be considered a relatively important one among this group of people. This improvement in design methodology is of great significance to them. This can naturally improve the work efficiency of the entire project team. Of course, this aspect of work does not require Chang Haonan to do anything. There will be people from Rongfei Group who are responsible for standardizing design methods. ?If the effect is good, it will gradually be promoted to all units in the aviation industry, and will eventually become a standard when the next standard is updated. ?Song Wencong replied from the side. It can be said that everyone in Rongfei is most aware of the problem of lack of money. Now, although I am not at the point where I can spend it freely, but compared to the past when I wanted to break every penny in half, and even the chief engineer took the lead in setting up stalls selling noodles to make a living, it is really better. Don''t know how much. ??If we really follow the method of the previous generation and split the aviation industry into the first group and the second group in parallel, differences will naturally and slowly arise in many places. ?If this way of burning money was left in the hands of others, the budget department would be scared to death. Hence, the tarmac was filled with happy air for a while. Speaking of which, the No. 04 prototype has entered the final assembly process. Do you want to take a look? No. 04... your speed in building prototypes is quite good... ?Xu De, who had not spoken for a long time, suddenly suggested. Its like digital design and pulsating production lines. ?It will only increase a lot of internal friction. Even if we want to merge back in the future, it will be a troublesome thing. After all, not every project can save money by relying on unparalleled efficiency like Chang Haonans When talking about this topic, Xu De suddenly became more energetic: Yes, I can feel that the above-mentioned views on the aviation industry are gradually changing, especially the financial system, which has gradually regarded us as a short- and medium-term effective investment from a bottomless pit of burning money... The expenditure characteristics of turbofan 10 and die forging presses are that the funds originally expected to be allocated in five years are concentrated in two years, and then the results are quickly withdrawn. In fact, there is nothing interesting to see in the assembly workshop, because the prototypes are all produced in a single frame, and each frame may be different, so no cutting-edge assembly technology is used. At this point, my colleagues across the country have to thank Comrade Haonan... Although the person directly managing the project budget should be the chief engineer Xue Chishou, the chief designer is definitely aware of the expenditures. After all, he is the deputy chief engineer in charge of aircraft production. Although it is impossible for him to know everything about design at this level, he still can''t say anything in front of Chang Haonan and Yang Wei. ? Its only been one year since its first flight. Excluding the No. 02 aircraft used for static damage testing, there will be a third aircraft available for test flight soon. ?This is also the benefit of the entire aviation system maintaining a national chess game. "Well...the state''s overall allocation to the aviation industry has increased a lot this year. For key centrally managed projects like our No. 10 Project, this year''s budget has increased by nearly a quarter on the original basis. Naturally, we need to have sufficient funds..." It''s just that since Xu De mentioned it, it was difficult to refuse based on emotion and reason. Just treat it as part of the visit. The real highlight was the Project 10 Category II prototype technical seminar on the second day. Since the Air Force has not officially named this equipment theoretically, it is Rongfeis current internal official name. Correspondingly, the version that uses a binary adjustable inlet and is currently undergoing test flights is naturally called a Category I prototype. ?Of course, in general situations, they are simply called J-10E and J-10A. ??The Guihang Industry team led by Sun Huizhong arrived on a chartered flight the next morning, and were then picked up as quickly as possible and taken to Rongfei. Mr. Song, Mr. Chang, and Mr. Yang, Im so sorry for wasting everyones time. After entering the door, the leader, Sun Huizhong, shook hands with the person in charge of Project No. 10 one by one. It doesnt matter, everything happens for a reason. Besides, the project is not rushed. Song Wenchong immediately said it was okay. "Yeah, it just so happens that I haven''t been to Rongfei for more than half a year, and I still had half a day to look at the changes here yesterday." Chang Haonan also added. Following that, on the way to the seminar site, we talked about the situation of Guihang Group: By the way, Mr. Sun, I was at the Air Force Aviation School before, and I heard that they seem to be preparing to purchase a new advanced training aircraft. Is there any news? When mentioning the matter of JJ9, Sun Huizhong, who was still a little tired, his eyes suddenly lit up: Yes, I wanted to call you to thank you for this matter before, but you were not in Beijing at that time, so I couldnt get in touch... There is currently a batch of 26 aircraft ordered there, 6 of which are the same version with formation indicators like the Bayi Performance Team, and the delivery time is very fast..." After some greetings, the participants came to the venue one after another and sat down according to the tasks they were responsible for. Chang Haonan noticed at this time that Lin Tongxin, who had followed Sun Huizhong to the capital before, was also following him this time, and he also had the title of deputy director of the research office. Apparently the pace of progress is rapid. ?Of course, it also reaped the dividends that no one could use in the past two years of Guihang Group. Those who participate in this kind of technical meeting are all their own people, and there is no need for any opening remarks. After Song Wencong briefly talked about todays theme, the microphone was handed over to Chang Haonan. Comrades, before discussing specific technical issues, let me first give a general summary of the improvement plan for the Category II prototype. ??As he spoke, he flipped through the PPT on his computer and showed a rough rendering. After a brief silence, the audience was in an uproar. "this" Compared with our current Class I prototype, this plan is a bit different Yes, without going into more details, the shape of the nose and the wings have been slightly changed. ??The technicians sitting below couldn''t help but whisper. Even people like Song Wenchong and Yang Wei, who had heard Chang Haonan draw cakes before, were a little surprised. ??Although the overall appearance still maintains the characteristics of the J-10 - wing-body fusion, mid-range coupled canard + large delta wing, belly air inlet, single engine and single vertical tail, obvious wasp waist structure... But upon closer inspection, the difference is not small. ?Although the overall size is still the same as before, the entire aircraft has become fuller. Especially the cross-section of the fuselage has changed from an approximately perfect circle to an oblate shape that is wider on the left and right. Even a little bit like the Typhoon fighter. The advantage of doing this is obvious, that is, while the measurements remain basically unchanged, the usable volume of the aircraft becomes larger. But the price is...it''s obviously "fatter". Comrade Haonan ?Song Wencong felt a little sweat on his forehead: "You...didn''t say you wanted to be so ambitious..." He spoke in a very low voice, obviously worried that his words would be heard by the people below and would affect their confidence in their work. And this aircraft, I think, must be at least hundreds of kilograms higher than the current design empty weight, plus the drag increased by changing the area ratio..." ?Yang Weis eyes also trembled a little: Although our aircraft is a medium-sized aircraft, we cant completely give up supersonic performance, right? At this time, Chang Haonan finally continued to speak. Not just to the other two chief divisions, but to everyone on site: I know what your concerns are now. Speaking of this, he directly turned the PPT to the next page: Just at the end of last month, the domestic turbofan 10 engine expected to be equipped on the Class II prototype aircraft has completed parameter calibration. The first mass-produced model, the turbofan 10A, has a maximum thrust of 13.2 tons at sea level. The specialized single-engine model, the turbofan 10B, has been specially adjusted to increase the maximum thrust at sea level to 14 tons, which is a 12% increase compared to the current AL31FN, and has been specially optimized for high-altitude and supersonic thrust. " So, dont worry too much about the flight performance after the modification! (End of this chapter) Chapter 614 The heart of Chinese fighter Chapter 614 The Heart of the Chinese Fighter This time, when Chang Haonan finished speaking, the entire venue fell into almost complete silence. You can even clearly hear the uniform swallowing sound. When the J-10 was originally designed, we did consider using the turbojet 15, which is a domestic model that imitates the R29 (the engine of the late MiG-23). However, after entering the formal research and development process in the late 1980s, the target installed power soon changed to the AL31FN, which is more realistic, has better performance, and is basically the same as the Su-27, another third-generation aircraft equipped by the Air Force. Although it was just a standard third-generation turbofan engine, to the Chinese aircraft designers at that time, this engine with a military thrust of 7.5 tons at sea level and an afterburning thrust of 12.5 tons was definitely considered a It was a dream come true. You must know that the best engine China had installed and used at that time was the Spey imported from the United Kingdom. It had a thrust of 9 tons and the actual thrust-to-weight ratio was even less than 5. ??This is the result of specially optimized sea level data. The available thrust after installation is even lower. ?In this way, the JH-7 finally built has been regarded as the model with the best air combat performance among Chinese domestic aircraft for a long time. ? It wasnt until the J-8C entered service two years ago that there was a fighter aircraft that surpassed the fighter-bomber. What''s more, the military thrust of turbofan 10B is also 8.4 tons. means that although this model has enhanced high-speed working conditions, it still maintains a fairly balanced performance. But a high-performance aviation engine will definitely bring a higher degree of freedom to the entire project, allowing aircraft designers to maximize their talents. And its supporting power, the turbojet 14 that has now been installed on several other models, also proves that China has the ability to design and manufacture a high-performance aviation engine. In short, for the technicians present at the scene, before today, the upper limit of engine performance that could be achieved in their concept was the AL31FN, which is currently installed on two prototypes. Except for the slightly higher afterburning fuel consumption caused by increasing the afterburning thrust and afterburning speed, all performance advantages are visible to the naked eye. ?However, the Turbojet 14 can only be regarded as a second-generation mid-range thruster after all, and does not meet the basic requirements of Project 10. Before Chang Haonan just cut out this page of PPT. Who would have thought, or who dared to think, that China could have a three-and-a-half-generation aircraft engine at its fingertips? Before today. On the PPT page that Chang Haonan turned to, a table and two performance curves clearly show the difference between the turbofan 10B and AL31FN. What is going on today? Why is it different from what was promised before? but Compared with the current model, it is also an improvement of more than 10%. Although aircraft design is a complex system engineering, it cannot simply be assumed that the better the power, the better the performance of the final aircraft. You must know that the latter is already a third-generation engine whose performance orientation is obviously towards supersonic and afterburning conditions. Including the Taihang engine, when it was originally planned, it was also a model with basically similar performance and could be replaced in situ. In other words, compared to those third-and-a-half-generation engines that have exhausted their potential, the turbofan 10 in front of us is basically on par with performance on paper, but it has not yet begun to exert its power... In fact, if we use the slightly lower thrust turbofan 10A prepared for the J-11 for comparison, even the afterburner fuel consumption will be significantly lower than that of the AL31FN. ? Even F110-GE-129EFE and AL41, which are half a generation ahead, dare not say they can surpass them in this regard. Simply put, it means to be surrounded in all directions. Like a fish entering the sea, or a bird ascending to the sky. ?This feeling of being free from restraint highlights a sense of comfort. About two minutes passed, and still no one spoke in the entire venue. ?No one wants to break the feeling of happiness that everyone is immersed in at this moment. "This military thrust... only one for Project 10 is probably not enough, but if two are installed on Project 11, would it be possible to cruise at supersonic speeds..." After a long time, Song Wencong finally broke the news. The silence went on for far too long. ?However, he still chose a slightly less relevant topic as an introduction. ?Although it is also related to technology, it is not my own project after all, so it will be much easier to talk about it. Chang Haonan pondered for a moment and then shook his head: "If I must say it, at certain specific altitudes and with clean mounts, it is possible to reach a flight speed of about Mach 1 without using afterburner... This is not to mention the twin-engine J-11, even the J-10 is possible. accomplish." "When designing this engine, I took into account that the aerodynamic design of the third-generation aircraft was not optimized for long-term supersonic flight conditions, so I still had to take into account the subsonic conditions in most cases, and there was no way to avoid it. The afterburning speed under afterburner is set too high, otherwise the economical fuel consumption of the aircraft will not be improved, thus affecting the available combat radius. This is even more important for medium-sized aircraft like our Project 10. " "For example, the American F22 has a lower combat radius and can use their hundreds of aerial tankers to make up for it. Our Chinese Air Force cannot have such a large tanker fleet in a short time, so... maintain a basic The voyage is still necessary. After such a round of questions and answers, the entire conference room finally returned to its previous working state. Comrade Haonan, is this engine...sure that it can catch up with the time limit of our No. 10 Project? ?Someone below raised their hands and asked. Chang Haonan, who was sitting on the stage, just smiled. Over the past two years, this has been one of the questions he hears most often. ?The most fearful thing is having hope that is dashed later. Just as what workers hate most is the boss who has made plans but cannot realize them. Originally, if I had been using AL31FN all the time, I would not have felt anything. ??But after seeing the data of the Turbofan 10 on the PPT, some people are even thinking about whether it can be used as a power to develop a fourth-generation fighter. It would be too uncomfortable to use the old model again. So, it is normal to have this unbelievable sense of illusion. ?So, he adjusted his sitting posture and replied solemnly: Dear comrades of Project 10, the reason why I chose to come here at this time is because the overall design of the turbofan 10 engine has been determined, and each component has completed trial production and component-level testing. In other words, the performance indicators reflected above are not empty design parameters, but... have been verified. The parameters of the final product may still have some fine-tuning, but it is unlikely that there will be any major changes. The calm and serious tone makes Chang Haonan exude a natural confidence when speaking. This kind of confidence will also subtly infect other people at the scene. Unconsciously, everyone seemed to be sitting a little straighter than before... Also, I can reveal something else. ?Chang Haonan glanced at the crowd at the scene, paused briefly, and then continued to add: At present, all parts of the turbofan 10 can be produced in our country, so... there is no need to worry about supply interruption during production. "Actually, the only problem currently is that domestic refining and chemical companies cannot immediately produce aviation fuel of high enough standards that meets the requirements of this engine... Of course, I have also reported this issue to the logistics department, and they promised The problem will be solved within two years. When he said this last sentence, the atmosphere that had gradually become tense relaxed again, and even burst into bursts of laughter. In short, regarding the issue of power, you can rest assured that I, as well as my colleagues in the aerospace engine power field, can provide a strong heart for our third-generation aircraft! Chang Haonan said as he turned the PPT to the next page and returned to the overall design of the Type II prototype of Project 10. Its just that this time, no one will question the feasibility of this improvement idea. Everyone can already foresee that a fighter jet that is more advanced and more comprehensive than the original one will be born in their hands. (End of this chapter) Chapter 615 real hexagon warrior Chapter 615 The real hexagonal warrior After no longer worrying about power, when I look at the schematic diagram of the aircraft on the PPT, the feeling is completely different. There are no shortcomings, only advantages. If I have to say it, it is because as the aircraft becomes larger and heavier, the flexibility or agility will inevitably decline. Moreover, after losing the area rate design that was almost the theoretical optimal solution in the past, the maximum speed on paper will be reduced. There may be some reduction. But because of the larger thrust engine, there will certainly not be any major deterioration in overall mobility. Times have changed, my lord. ?? Today is no longer the age of machine gun fighting, and the loss of agility is not important at all. Then, lets continue to look at the improvement plan of this Category II prototype. "First of all, the most obvious improvement part is naturally the air intake. Regarding the overall design idea of ??this part, I have discussed it with Mr. Song and Mr. Yang before, and since last year, I have been working on it with the help of my brother units. Research in related fields is laid out below. "This time we also invited Chief Engineer Sun Huizhong from Guihang Industry. He will serve as a member of the No. 10 Project design team in the subsequent design process..." Hearing his name suddenly being mentioned, Sun Huizhong''s face showed an expression of shock and a bit of surprise. He quickly stood up, turned around and greeted the venue behind him. After all, Rong Fei himself was so poor at that time that he was about to lose his pants. ?After introducing Sun Huizhongs situation to everyone, Chang Haonan quickly returned to the topic: "The results of the actual installation test of the DSI inlet are finally reflected in the JJ-9 advanced trainer aircraft that has been designed and finalized and has been sold domestically and exported almost simultaneously. The data collected during the test flight of this model will be used On the follow-up research and development of Project No. 10. After all, if we hold another useless meeting just for this matter, it will become a burden for everyone. ?This is where the seemingly random sentence just came from. Obviously, the intensity and difficulty of such work are much lower than what they had expected. ?Originally, Chang Haonan actually wanted Song Wencong to talk about this matter, but the latter said that it was Chang Haonan''s intention to leave this part of the work to Guihang and not to take credit for others. Of course, the specific design details still need to be determined by the comrades responsible for the air intake design based on the actual situation, but I already have a relatively mature design method here, so I dont have to start from scratch. Its still the same plane, but the view has been switched to the belly part. At this point, Chang Haonan also paused for a moment. As soon as this sentence was finished, there were several weak, slightly thankful exclamations coming from below. "After Mach number 1.4 is exceeded, the ability to clean the boundary layer on the bulge surface will decrease sharply, and the separation of the boundary layer will be strengthened, which will cause greater intake pressure loss and distortion. It is expected that after the use of the vortex generator, the This obvious turning point extends beyond Mach 1.8. "However, considering that there are already heavy-duty aircraft and special interceptor aircraft in the future air force equipment sequence, the J-10 does not need to undertake high-speed interception tasks, and under common combat loads, it is difficult for the aircraft to reach speeds above Mach 1.8. Therefore, this kind of performance calibration is not a problem for a single-engine medium-sized aircraft. ?For example, when the production of JJ-7 was handed over to Guihang, it was not without objections. ?For a project like Project 10, which involves many systems and departments, except for the core leadership members, many people are not familiar with each other at all. "It can be seen from the first schematic diagram that the three-dimensional dimensions of the new design have basically remained the same, but the cross-sectional shape of the aircraft has undergone relatively large changes. Although this has increased a certain amount of resistance, it has also improved the The area of ??the belly part, and the internal volume of the fuselage. It would be much better now to be mentioned casually like this in the middle of a technical seminar. This is especially true for people like Sun Huizhong who joined midway. In the original design, the aircraft only had a total of 7 main hardpoints, of which only 4 could carry weapons and ammunition. Although composite pylons can be used to increase the loading capacity, it will still limit the multi-purpose performance of the aircraft. If integration into the team is not smooth, it is easy to appear like an outsider here to pick peaches. "According to the current test flight and extended data calculation results, when the DSI inlet flow Mach number is 1.2 and below, the pressure coefficient on the lip bulge surface is symmetrically distributed along the center line of the bulge, with obvious pressure gradients, and at different times The cross-section has the characteristic of increasing along the main flow direction, and the bulge configuration has a significantly stronger effect on the boundary layer than the current binary adjustable inlet. " On the one hand, it is to let the people below absorb the content. On the other hand, it is also to take the opportunity to drink water and turn the PPT to the next page. "After modification, the original belly centerline pylon can be divided into two, the fuel supply system here can be canceled and replaced with electrical wiring. If necessary, the air inlet between the main and auxiliary landing gear can even be installed. On the side edges, two more light-load racks are added specifically for air-to-air ammunition. ??PPT is indeed a good thing, as it allows Chang Haonan, who is not good at drawing, to no longer pollute his and others eyes with chalk and blackboard. ??With just a click of the mouse, the new pylon arrangement is displayed on the bottom view of the aircraft. Mr. Chang. Taking advantage of this opportunity, an engineer sitting in the first row below raised his hand and asked: Two mid-range air-to-air bombs, plus the corresponding pylons, weigh about 400-450kg. Will adding such a weight to the side edge of the front half of the inlet affect the strength of the lip? His concerns are clearly justified. After all, in the existing design, the main function of the six sticks connecting the air inlet and the body is to strengthen the structure... "This issue was considered at the beginning of the project planning. At first, we planned to carry out additional reinforcements at the joints, but later we found that the DSI air intake itself can reduce the mass of nearly 300kg compared to the binary adjustable air intake. Therefore, It wont make that big a difference over and over again. The part that really needs to be properly handled by the comrades involved in the structural design is how to arrange the electrical circuits required for the two hangers in the outer wall of the air inlet..." "In other words...the belly part of the fuselage is not going to be used to arrange the auxiliary fuel tanks?" Thats right. Chang Haonan nodded directly: The original planned auxiliary fuel tank in the belly of the fuselage is only 900 liters. After modifying the fuselage, the fuel volume in the fuselage is expected to increase by about 1,100 liters, which can completely cover the 900 liters of fuel in the belly auxiliary fuel tank. In this way, the prime position between the two landing gears is reserved, and two air-to-surface weapons that are relatively large in size and weight can be mounted. Placing large mounts closest to the centerline of the aircraft, compared to arranging them under the wings according to the conventional plan, although the total weight does not change, the moment of inertia of the aircraft is smaller, so it can maintain higher maneuverability. " At this point, those who responded quickly have basically understood what Chang Haonan meant. What Comrade Haonan means is to transform our No. 10 Project into a multi-purpose fighter that can be compatible with various types of missions..." ?Yang Wei looked at the design plan projected on the screen and pointed out the key points. Its not just the application of a certain technology. Its a change in thinking. Yes, a true multi-role fighter. ?Chang Haonan immediately expressed his affirmation and then began to describe his overall thoughts: Although technically speaking, the current J-10 is fully capable of this, but from the overall layout, it is not suitable for performing tasks such as battlefield interdiction or stand-off air strikes. Of course, considering the current struggle situation we are facing, a medium-sized aircraft that is biased towards pure air superiority and focuses on agility does indeed meet the needs of the aviation force. However, with the continuous development and progress of our Peoples Air Force, it is actually just around the corner to transform from a purely homeland defensive force into an offensive and defensive air force, or even an offensive air force. "An aircraft with limited range and mounting capacity will definitely find it difficult to adapt to the increasingly complex combat scenarios of the People''s Air Force in the future. The vitality of a model of aircraft depends to a large extent on the extent to which its basic design can to meet the needs of users. Thats why I came up with such a preliminary plan. I hope that the Project 10 can truly become an all-round model with no obvious shortcomings in the size of a medium-sized aircraft! In fact, from the beginning when he participated in Project No. 10, his goal was to make this aircraft surpass the F16 in all aspects, not just in air combat performance. However, before the performance of the turbofan 10 is truly determined, this matter is indeed difficult. So he never stated this goal. The J-10 in the previous generation was chosen due to limitations in technology (the weight was inherently too large and the engine thrust was not enough) and vision (no one could have imagined that the Air Force would have thousands of third/fourth generation aircraft in more than ten years). It adopts a single-function technical route that is partial to short-term advantages. But the problem is, excluding the special scenario of carrier-based aircraft, medium-sized aircraft cannot beat heavy-duty aircraft of the same technical level in any aspect other than cost. So whether it is the F16 or the J-10, the "light" part of the light-heavy combination will eventually tend to do dirty work (licking the ground). ?However, when the Air Force really used the original J-10 to do odd jobs, it found that it seemed not suitable for dirty work... There have even been famous scenes of using asymmetric mounts, with air weapons on one side and air ammunition on the other side. Although it is not impossible to use, it is very awkward to use. Now that the more powerful turbofan 10B has emerged, it can naturally solve this problem without any worries and create a true hexagonal warrior! (End of this chapter) Chapter 616 The military industry system also wants to make a comeback! Chapter 616: The military industry system also wants to make a comeback! ?In large-scale meetings like this, where representatives from all research directions within the project team are required to attend, in fact the focus has never been on technical details, but on unifying R&D ideas and technical routes. ?Especially like now, if the project undergoes major changes in the middle of its progress, it is even more important for all participants to have a basic overall thinking. You dont necessarily need to understand it deeply, but you must at least know in which direction you are working hard. Otherwise, it will be troublesome if you get confused. So, todays technical seminar, after introducing the overall idea, is almost over. ? ?Song Wencong will naturally be responsible for the subsequent overall design modification work, while Chang Haonan, like Sun Huizhong, is mainly responsible for the design of the new air intake and the corresponding flying engine matching work. I was watching the news some time ago, and it was said that widespread quality fraud in Japanese machinery products was reported in Europe? After the meeting, Chang Haonan walked on the way to the canteen with several other people. ?Sun Huizhong was the first to break the silence. Speaking of this topic, Song Wencong immediately picked up the topic: Thats what happened, and two days ago, the head office issued a special document asking us to thoroughly investigate all suppliers involving Japanese companies, and even second-tier suppliers including Japanese companies must not be left behind. I...have never participated in... I remember that Comrade Haonan should also hold the position of general manager of Torch Group? Yang Wei, who was walking next to him, took advantage of the situation and said: In recent times, several official media have been reporting on this matter continuously, and it is difficult not to know. Speaking of this, he looked at Chang Haonan beside him: Is there anything in particular that we should learn from? Although Yang Baoshu and Xue Chishou were ultimately responsible for the incident, and considering that it did not cause any loss or impact on the schedule, no substantive handling was carried out. As the deputy chief engineer in charge of production, Xu De still felt very sad in his heart. care about this matter. Several other people naturally know what is going on. Its nothing more than waiting for him to officially join the work. ? Last year, prototype No. 1001 was almost damaged during ground testing due to poor production quality. Even thinking about it now, it makes him feel scared. So, Mr. Chang, have you participated in this training? Back there, the quality inspection department is probably also busy... As soon as Chang Haonan finished speaking, Xu De, who was walking a little behind, suddenly became energetic: Chang Haonan nodded: Strictly speaking, I am still the acting general manager... By the way, Mr. Luo flew to Beijing on a business trip the day before yesterday. It seems that he also wanted to participate in some kind of quality management training. It was said that all state-owned enterprise leaders must participate in batches. Looking at the excited Xu De, Chang Haonan organized his language a little: Its just that, after all, its one persons exploration, and a set of reliable standards or theories has not yet been formed. The purchasing department has been up all night for this matter. Before Xiao Chang arrived here yesterday, he had just listed the list of companies that needed to be checked and the specific risks involved. No one would really regard Chang Haonan as an acting leader. During the production of the next two prototypes No. 03 and No. 04, in addition to adding new quality inspection procedures in accordance with the requirements of the "Quality Culture Month", he also began to pay special attention to quality management and risk control, hoping to Quality problems are eliminated on the production line, reducing waste caused by high failure rates. On the one hand, our Torch Group headquarters is not involved in any manufacturing industry. The only product is software, and theoretically it has not been released yet. On the other handthis training course It was organized by me Xu De''s originally smooth steps stopped at that time. He didn''t know what to say for a moment. ?But it seems quite reasonable when you think about it. After all, Chang Haonan discovered the original problem of prototype No. 1001 first. "Hiss... It seems that Mr. Luo mentioned it before. The training he went to participate in was called the Torch Project... It has the same name as Comrade Haonan''s company..." Obviously, the operations of Ding Gaoheng and Lan Xinzhi are effective. Although the Science and Technology Commission also launched a Torch Project with the same name more than ten years ago, now, especially for companies engaged in industrial design or machinery manufacturing fields, when hearing the name Torch, the first reaction is definitely Chang Haonans Torch Group However, the English translation of this project is "HUOJU". ??The name is used internally to gain traction, while externally it is changed to Chinese Pinyin to avoid policy risks... A win-win situation. "This... is all a coincidence. Although I did participate in this plan, it has nothing to do with our company..." ?Chang Haonan had no choice but to explain the whole story. That is to say, after Japanese companies encountered Waterloo, we here learned from others lessons and ensured product quality. Mr. Chang knows the details of this matter very clearly... ?Sun Huizhong, who initially brought up this topic, listened with some unfinished meaning after listening to it like a story. ??Although in the past two days, several official media have been continuously reporting on the news that Japanese brands have suffered huge claims in Europe and have experienced a sharp decline in market share, the whole story has not been mentioned. I suddenly had a guess. ? Xu De had just recovered from the initial shock, and suddenly felt that his entire train of thought became clear: Could it be that this matter... was planned by Mr. Chang? After finishing speaking, several eyes looked at Chang Haonan. Fortunately, the matter has been settled after all, and there is no harm in talking about it. So the latter had no choice but to continue explaining: "Sigh... wasn''t it that I was responsible for building heavy-duty die forging presses at the Equipment Industry Department before? During that process, I accidentally discovered that several Japanese companies were dishonest. The parts they exported were exactly the same as those produced by our domestic companies. This is obviously Just buy it and get it OEMed. Originally I just checked casually when I went back, but the more I checked, the more things happened, including not just OEM, but also shoddy goods, contract fraud, falsified product data, collusive bidding... in short, all five evils. "Then I thought... with the nature of the Japanese, it is impossible to do this just in our Chinese market. It is estimated that the European and American markets also play the same way, so I teamed up with the Bingfei Group to make a game, and the other party not only took the bait , and also sent a wave of assists himself..." ??The story started on the way to the canteen and ended after lunch. ??The ups and downs of the plot, of course, and more importantly, the satisfying results naturally aroused a burst of admiration. What a wonderful turnaround Song Wencong concluded radiantly. Although I am not in the industry I am in, this kind of thing sounds very encouraging. I just dont know when our military industry will be able to do something like this. The details of the dike-building operation are not entirely clear, even to those sitting here. As for the previous incident of inadvertently forcing the Maritime Self-Defense Force submarine to come out, the spread was even smaller. not to mention For Chinese military workers, it is natural that they cannot only target Britain or Japan. But an old rival from across the ocean. "Well... there will always be a chance, I guess it won''t take a few years." What Chang Haonan said is actually just a prediction in the general direction because he understands the future development context. But now he would not have thought that this opportunity would appear in front of him not long after... (End of this chapter) Chapter 617 Anti-Cruise Missile Noble Phantasm Chapter 617 Anti-Cruise Missile Noble Phantasm ?Just when Chang Haonan was in Chengdu, he was busy preparing to upgrade the design of Project No. 10. Lingshui Airport, Qiong Province. An almost brand-new elongated IL-76MF transport aircraft appeared in mid-air outside the fence, aiming at the landing height of the runway in a nearly dive attitude. It was almost until the last moment before touching down that the nose of the aircraft was pulled up and the main landing gear was released. Accurately hitting the center of the runway. Soon, the plane slowly came to a stop about two-thirds of the way down the runway. ?Everything seems normal. ??But the captain Cheng Yunfeng in the cockpit still curled his lips, obviously not satisfied with his landing. Compared with the classic clamshell thrust reverser on the D30KP2 engine on the old model, the grille thrust reverser of the new PS90A-76 engine is more efficient. Pilots who are accustomed to the landing method of the Il-76TD in the past can easily misestimate the length of the runway required for landing. ?Just like just now, the goal he set for himself was to park the plane in front of the taxiway entrance at the end of the runway. What if there is a runway half destroyed by the war? Cheng Yunfeng flipped the switch and opened the air-tight hatch and tailgate at the rear of the aircraft while reviewing the imperfect landing in his mind. Neither Xu Yang nor Guo Lin, who led the team, were soldiers, so they could only shake hands with Tang Yiping in front of them. Originally, with such a small number of people and cargo, there was no need to use a transport aircraft as large as the IL-76 to perform the mission. Immediately afterwards, a flatbed trolley was pushed out along the springboard ramp. ?The four-leaf tailgate opened simultaneously in four directions: up, down, left, and right. After a while, more than twenty people wearing uniform work clothes came out one after another. ?After the end of the embankment building operation last year, the latter, as a front-line commander who personally participated in setting up aircraft, was naturally promoted and became the deputy commander of the South China Sea Fleet Aviation Force. But with the arrival of a new batch of IL-76s in the second half of last year, the Air Force transport aviation also needs to adapt the newly modified pilots to the increasing number of strategic transport aircraft. ?However, because he is not old enough to be grounded, he is still stationed at Lingshui Airport and participates in aviation training as before. But as a pilot of a military transport aircraft, you always have to make it more difficult for yourself. You are Commander Tang, right? Ive known you for a long time. ?Several transport and commuter vehicles quickly gathered on the runway at this time and began to carry other unloaded materials from the cabin. It can be regarded as one of the many influences brought by Chang Haonan. ?Then you have to fly anyway. Instead of flying empty, it is better to perform some tasks that are less difficult and easier to get started with. The ones who just got off the transport plane were naturally the engineers from the 14th Institute of Electrical Engineering. ?In the huge round of organizational adjustments in March this year, the original Ministry of Electronics Industry was abolished and reorganized into the Ministry of Information Industry together with the Ministry of Posts and Telecommunications. The research institution of the former Ministry of Electronic Industry also followed the group restructuring of the military industry system and established the Electronic Technology Group several years earlier than the original timeline. Lets use competition as a substitute for training. At the same time, a higher-ranking officer got out of the passenger seat of a Cheetah SUV with a hard top and saluted the two leaders. ??A slender cylindrical object wrapped in red and white striped woven cloth is firmly fixed on it. ?Of course, Lingshui Airport has a long enough runway, so even if the touchdown position is not precise, there will be no problem. Welcome to the comrades of Electronic Technology Group! At this time, Guo Lin quickly picked up what Xu Yang was saying to avoid any awkward silence: "The mission you led last year brought back extremely valuable practical data for our electronic technology system, which is of great significance to the development of new new technology equipment in the future. Before coming this time, our group leaders also specifically asked us to face you face to face. Expression of thanks." ??Although there is very little publicity about the embankment construction operation at the official level and is even somewhat secretive, the Dianke Group is deeply involved in the equipment support work of the mission, so it still knows many details. As for this thank you... of course it is not entirely because of the reasons Guo Lin said. In fact, what Dianke Group would like to thank more is the unsatisfactory performance of the Yun-8J warning aircraft in that mission. At that time, there were even signs that the SouShui 2000MS radar was being interfered with by the British backdoor, which indirectly prompted the senior management to decide to build a self-developed early warning aircraft as a backup outside the ring project just in case. This aircraft has basically entered the prototype production stage. Air Police 200 project. But its hard to talk about this kind of thing clearly, so we have to use a more high-sounding name. No, no, we should be the ones thanking you comrades in the military industry system. Tang Yiping quickly waved his hand: Operation Embankment would be completely unimaginable without the several brand-new equipment you provided, especially the new electronic warfare aircraft. "From this point of view, that mission should be regarded as something we completed together. I was just lucky, so I got this obvious credit." What he said was completely true to his feelings. After all, even from a personal point of view, if it were not for such an opportunity, then as the chief officer of an aviation unit in a non-key disadvantaged direction, it would be almost impossible for him to cross the gap between middle and senior officers without hindrance as he does now. threshold. Even the entire 25th Regiment of the 9th Naval Aviation Division was awarded the honorary title of "Xiangjiang Guards Regiment". ??As long as we wait a few more years, when the incident can be fully disclosed, Tang Yiping''s name can basically be put into the Naval Museum or even the Revolutionary Military Museum... After calming down, he continued: So, this time I heard from my superiors that you have new equipment that needs to be tested, so I hurriedly submitted the application on behalf of the old army. I just wanted to see in advance what new equipment you have come up with..." Just when the three of them finished exchanging greetings and compliments, and were about to get down to business, the equipment that had been fixed on the flatbed truck happened to be torn off its frivolous packaging, which was similar to that of construction site equipment, revealing its true appearance. A pod apparently made of composite materials. There is no difference in core hardware from the jammer previously tested at Dajiaochang Airport. ??However, the algorithm has been further upgraded, allowing the jamming pod itself to resolve and forward the coordinate information sent by the GPS during high-speed movement. The aerodynamic shape has also been optimized so that it can be mounted by an aircraft. The scope of action is no longer a nearly infinitely high cylinder centered on itself, but can be used directionally towards the front of the aircraft. Of course, it was built using another GPS receiver that was tested before. In other words, there should be no third one in a short time. "This is it?" Tang Yiping, who has sharp eyes, immediately saw this thing that looked like a small auxiliary fuel tank: Is it also an electronic warfare pod? ? In the past, such an inconspicuous device might not have attracted his attention, but since seeing the magical power of the JH-7, he has a certain degree of awe for all cylindrical devices that can be hung on airplanes. Thats right, a pod designed to interfere with satellite positioning equipment can cause all targets to receive false positioning information within a range of about 20-25km. Xu Yang turned around and glanced at the pod that was being unloaded onto a light truck: It can target all GPS devices, but the main combat target is expected to be to interfere with cruise missiles and the use of satellite-guided bombs. In theory, it can interfere with an unlimited number of all munitions in an area at the same time. Of course, in addition to being on an airplane, it can also be installed on a car, but in terms of testing, airborne testing is more difficult. Since she started running outfield with Chang Haonan and participated in various project tests, she has become more and more like a normal person in the way she speaks. ?Hearing such a function, Tang Yiping''s eyes immediately lit up: Sodo we need our pilots to prepare anything extra? ? Before being selected for the embankment operation last year, he was one of the first pilots to receive the J-8C aircraft and participated in a low-altitude interception mission against simulated cruise missiles. However, it was ultimately discovered that with the configuration of mechanical scanning radar and semi-active radar bombs, each aircraft basically only had time to intercept two targets, which was very inefficient. Considering that the number of ground-attack cruise missiles equipped on a powerful enemy cruiser may be more than the semi-active air-to-air missiles equipped by our army, the actual combat significance is really not great. But if you have the equipment in front of you, it seems that you can completely erase the opponent''s numerical advantage... As long as the low-altitude flight technology is passed, and the aircraft has a 1553B bus and a multi-function display, it will be fine. Xu Yang stepped forward, patted the outer shell of the pod, and then opened a small door on the side: When used on the ground, an external computer can be connected here, and technicians can write the coordinate translation algorithm on site according to actual needs. However, considering that there is no such condition on an airplane, I, and of course the regular workers, have set 4 prefabricated algorithms in advance from the beginning. The pilot only needs to press the button to select to achieve the corresponding interference effect. Hearing her explanation, Tang Yiping finally felt relieved: Dont worry about this, my pilots are absolutely fine in low-altitude technology. When the time comes, the 14 J-8C pilots of the 25th Regiment will be at your disposal... (End of this chapter) Chapter 618 Soft Kill Self-Defense Countermeasure System (SKSPCS) Chapter 618 Soft Kill Self-Defense Countermeasure System (SKSPCS) ?While the three people were chatting, all the equipment brought along with the transport plane had been unloaded and loaded onto the truck. The aircraft did not stay too long. After changing direction on the taxiway, it quickly returned to the runway to prepare for takeoff and return. ?Lingshui Airport does not have the ability to support the IL-76, and it cannot even refuel. Fortunately, the improved version has a long enough range and the remaining fuel is enough to fly back to the Yiling base in Hubei Province. This is also the significance of long-distance transfer flight training. ??If you are just wandering around your home base, even if the flight time is long enough, it is difficult to feel the tension of facing unfamiliar airspace and unfamiliar ground staff. Many problems do not appear at ordinary times and only appear under such circumstances. As for the technicians of the 14th Institute of Electrical Engineering, they naturally got into the car and went to the arranged accommodation, and prepared to conduct final debugging and inspection before hanging up the pod later. By the way, two comrades. ?However, Xu Yang behind him directly waved his hand to indicate that he didnt need it: Commander Tang is better at this matter. We trust the judgment of professionals. Moreover, the J-8C is also a new model and should be in similar condition. You can make the decision. ?? Tang Yiping was not pretentious and took out a notebook directly from his pocket. In fact, there is no possibility of mass production of this equipment in a short time. How could she, a lazy person who only squatted in the laboratory doing theoretical research, unknowingly become a field engineer traveling all over China for field tests? Xu Yang briefly recalled the details that were finalized with the leaders of the Electronic Technology Group and the Naval Equipment Department before departure: The surface ship force will cooperate with us and launch six modified YJ-8A target missiles from a frigate to simulate cruise missiles launched by ships or submarines. ?Sitting in the back seat of the Cheetah off-road vehicle, Xu Yang half-leaned against the window and exhaled a long breath of distress. How about I gather together the pilots in the regiment who can fly the J-8C this afternoon, and you guys decide on the candidates? As for getting familiar with the characteristics of flying Absolutely outrageous. The only thing that needs attention during the entire test process is that the range of the target missile is only 75 kilometers, and the whole flight time does not exceed 4 minutes, so the effective interception window is only about two and a half minutes, and the pilot needs to seize the opportunity in time. ??Moreover, she is someone who has never even been in the cockpit of an airplane, so she has no way of judging the level of other peoples business. If I make the decision...then what is the general process of our test? Can you disclose it? ??If Chang Haonan hadn''t insisted on completing the follow-up maneuver interference test, she might not even have made this trip. If possible, we can also fly a few more sorties to let more comrades become familiar with the flight characteristics after mounting the equipment. For her, choosing a pilot doesnt actually mean much. No, I should say definitely not. Only one fixed ground-based jammer and one mobile jamming pod are available. ?What if another opportunity similar to the dike-building operation comes along? Obviously, he had tasted the sweetness last time and wanted to prepare in advance. ?Tang Yiping, who was sitting in the passenger seat, turned his head slightly: Because there are really no difficult operations. But on the other hand, the area of ??the experimental airspace is also relatively small, and there is almost no concern about searching for targets. "Oh, yes, in addition to a jammer carrying a pod, we also need an auxiliary aircraft to accompany the target missile. It is best to be a two-seater, so that the pilot can concentrate on flying at ultra-low altitude and it will not be so dangerous. " Tang Yiping, who was in front of me, wrote quickly and quickly wrote down these contents, and the expression on his face became relaxed: "There is no problem with the two-seat aircraft. Although the main equipment of the 25th Regiment is J-8, there are also a few J-6s used for adaptive training of new pilots. If that doesn''t work, our division has another one equipped with J-7s. Tuan, you can use it from over there. In principle, after he was promoted to deputy commander of the South China Sea Fleet Aviation Force, he could no longer be considered a member of the 9th Division. However, in reality, after his promotion, leaders would definitely use this term when referring to the old army: "In addition, this training method is basically the same as what we tested at the beginning of last year, in which the J-8C used the PL-11 to intercept low-altitude cruise missiles, and there will be no technical problems." "It''s just... this YJ-8A is inertial For anti-ship missiles with guidance and terminal radar guidance, we used missiles to directly intercept them before, so the guidance method didnt matter, but this time since we are testing the GPS jamming effect, then..." In fact, China''s first set of satellite navigation systems, Beidou Generation 1, is still under preparation. Except for some handheld GPS positioning terminals purchased by some commanders and soldiers through different channels, there are no decent satellite positioning equipment at all. . Commander Tang doesnt need to worry about this. The person who replied was Guo Lin, who had not spoken just now: "Our 14th Institute of Electrical Engineering has removed the warheads of those target missiles and replaced them with simple guidance modules based on civilian GPS positioning systems. Although they are not very good in terms of accuracy and obstacle avoidance logic, they are just used as target missiles. , is enough. Last time, they had verified the effectiveness of this set of jamming equipment for interfering with the military GPS navigation system at the university campus. Therefore, the focus of this round of testing is the effect of directional interference against multiple targets, and whether the jamming equipment itself is in motion. It can still function as usual. So it is not a big problem to replace the interfered target with the civilian version this time. ?Of course, the main problem is that there is really no other accurate P-code receiver... In that case Tang Yiping put the pen back into his pocket and looked at the notebook in his hand for a while: Then Ill fly the test aircraft myself! Three days later. Similarly at Lingshui Airport. ? A J-8C fighter jet numbered 81091 is parked at the end of the runway. Tang Yiping, wearing orange flying gear, is conducting final inspections before takeoff. ??The pod, which looks similar to the auxiliary fuel tank, is currently hanging on the center pylon of the aircraft''s belly. If it is placed on an old aircraft, then if a brand new ammunition or equipment wants to be put on the aircraft, especially for complex equipment such as pods, it may even require extensive modifications to the carrier aircraft itself. But after the emergence of the data bus system, as long as the new weapon is compatible with the bus, it only requires a small amount of software-level modifications to be used. In the past three days, apart from waiting for the frigate to complete preparations and go to sea, I have been debugging the avionics level functions. ?After confirming that there was no problem with the status of the aircraft itself, Tang Yiping lowered his head and selected rack number 4 on the multi-function display at the lower left of the control panel in front of him. In the weapon control system, this thing is named Soft-killingSelfProtectionCountermeasureSystem. Soft-kill self-defense countermeasure system. SKSPCS. The Chinese army rarely refers to a piece of equipment in such an obscure way, preferring simple and crude naming strategies such as "empty dry 100". ??In addition, Tang Yiping''s English level was relatively average, so it took him a lot of effort to remember the official name of this thing. Even the technicians at the 14th Institute of Electronic Science and Technology of China directly call it a GPS jamming pod. In fact, this name was given by Chang Haonan when the project was first established. Of course it is not to imitate the habits of NATO. Rather, it is emphasized that it is not a "weapon", but a protective device purely used for self-defense and countermeasures. In this way, when it is put into overseas use in the future, whether it is domestic or international, the obstacles it faces will be much smaller. According to the requirements of the mission briefing before boarding the plane, Tang Yiping adjusted the working mode of the equipment to "3". ?This interference mode will focus on the GPS altitude signal in an area, inducing the guided weapon to misjudge its own altitude, thereby detonating or crashing in advance. ?After everything was completed, Tang Yiping slowly pushed the throttle lever forward from the idle position. Tower, Unit 01 is ready and ready to take off. (End of this chapter) Chapter 619 The confused Annan people are sailing in the air? Chapter 619: The confused Annan people are sailing in the air? ??The designated airspace for this soft-kill test of a simulated cruise missile target was chosen near the China-Saudi Arabian Sea, about 600 kilometers away from Qiong Province. In other words, in the past two years, the equipment of the naval aviation, especially the aviation of the South China Sea Fleet, has been updated relatively rapidly. If it had been four or five years earlier, few aircraft would have been able to fly there safely and conduct low-altitude tests before returning... As for why we must choose a place so far away... Naturally, this was the result of discussions between Xu Yang and Chang Haonan before the test. Although when originally designed, the range of this "soft-kill self-defense countermeasure system" was only calibrated between 20-30km, the situation between electronic equipment and mechanical structures is really different. Since electromagnetic waves are extremely affected by environmental factors, even Chang Haonan cannot accurately grasp the design values ????as he did when designing aircraft, leaving as little margin as possible so as not to "waste" performance. Moreover, in his estimation, the place where this equipment would work would be a city in the midst of war. The signal environment is extremely complex, and it may even face electromagnetic interference from both warring parties. So, he must leave enough redundancy in the design. ??But in this way, in places like Qiong Province where the background noise is quite clean, how far can this thing work specifically... Base, No. 01 has visually discovered the Shenhu Sands and is about to enter the test airspace. After confirming that his position was correct and adjusting the flight direction according to the instructions of the base, Tang Yiping lightly pushed the control stick and lowered the aircraft to an altitude of about 500 meters Fortunately, the naval aviation force has conducted more long-sea flight training in the past two years than in the past few decades combined, so for Tang Yiping, who had just taken off, this was not a big deal. In fact, for flying over the sea, 500 meters is not considered high (less than 1,000 meters is considered low altitude). ?In the absence of a satellite positioning system, aircraft can only navigate through a few methods such as gyro integration or wireless power triangulation, and rely heavily on visual flight to find landmarks for positioning. In this moment, the HUD in front of Tang Yiping already showed a target flying diagonally towards him at a high subsonic speed, about 80 kilometers away. There is no need to play so thrillingly. Probably the JH-7 that performed the accompanying mission to collect evidence... He lowered his head and compared it with a photo placed in the transparent pocket on his thigh to confirm that the features were exactly the same. The communication quality of the shortwave radio station was average, so he repeated it twice in succession. No one is counting. ?After about 40 minutes of flight, Tang Yiping finally saw a reef that was half hidden under the blue sea and roughly in the shape of a "door" on the sea surface in his field of vision. YJ-8A is small in size and roughly cylindrical. The radar reflection area is not large. For a radar like the 1472, which was of a satisfactory technical level in the early 1990s, it is impossible to catch the target at a distance of 80 kilometers. ??Tang Yiping quickly judged the nature of the target. Sure enough, about half a minute later, the radar detected three more signals with weaker signals and slightly lower flying altitudes. Received, the target missile carrier is currently located southwest of the Shenhu Sands, about 40 nautical miles in the 240 direction. Please pay attention to search the airspace in this direction. ??The tower commanders slightly vague voice soon sounded on the radio: ?Of course it cant be a target missile. ? And at a distance of 600 kilometers, the airborne shortwave radio station can still communicate with the Lingshui base through ionospheric reflection. ??Besides, the purpose of his lowering altitude is to provide a relatively mild electromagnetic wave emission angle for the fire control radar and self-defense countermeasure system, rather than a low-altitude penetration like the previous time when facing the Royal Navy fleet. And this thing is said to be specifically designed to interfere with positioning and navigation signals, but firstly, the frequency limit cannot be so precise, and secondly, the GPS signal itself has a certain width, such as the L1 frequency band at 1575.42MHz, the L2 frequency band at 1227.60MHz, etc. In order to avoid making too much noise, such as affecting the operation of radio equipment in a large city, it is more worry-free to place it in a slightly distant location. This test is divided into two parts, corresponding to mode 3 and mode 4 of the preset interference algorithm, which respectively correspond to the key interference height signal and the key interference plane position signal. Hence, the six target missiles will be fired in two rounds. At this time, the South China Sea Fleet did not even have a surface ship that was on standby and could launch the Eagle 8A. As a last resort, a 053H2 frigate Huangshi was transferred from the East China Sea Fleet. ??This model, which has not left any significant mark in the People''s Navy series, uses a rather special weapon arrangement. All anti-ship missiles it carries can be launched sideways and forward at the same time, which has become one of the reasons for being selected to participate in the test. ?After confirming that the target can be searched stably, Tang Yiping tried to adjust the radar to tracking mode before entering the interference distance. ?This is not part of this test session, he simply wants to test whether he can lock a target the size of a cruise missile at this distance. The result was not as expected and it failed. ??It could only track the JH-7 with a huge target, but until it was about 35 kilometers away, it was still unable to track the other three small targets. In order to prevent the two JH-7 pilots from listening to the radar warning sound for too long, Tang Yiping quickly turned off the tracking mode, then pressed the button labeled "SKSPCS (ON on the multi-function display, and then Silently waiting for the results to appear. The charm of electronic warfare lies in this. It is invisible and intangible, but it can defend the enemy invisibly. On the other side, two JH-7 pilots had just recovered from the harsh RWR sound. ??The weapons control officer in the back seat held up his camera and pointed the lens at the right side of the aircraft. Although not much can be seen with the naked eye, through the enlarged picture in the viewfinder, you can see three missiles painted in a black and white grid shape and flying forward at high speed, dragging their tail flames. ?The YJ-8A missile still uses a solid rocket motor with a booster instead of a turbojet engine, so even during flight, there will be a relatively obvious tail flame effect. ??This is of little significance for radar-guided weapons, but will be easily detected by infrared means. Deputy Commander Tang must have made a mistake...why did he use radar to lock on... He felt that his hand holding the camera was a little numb: And these three missiles dont seem to have any reaction, will they work or not ??This JH-7 flew at a much lower altitude than Tang Yiping''s No. 01 aircraft, so the pilot focused almost all of his attention on the sea and did not respond to the complaints of the ballast weights behind. ??The weapons control officer wanted to say something more, but at this moment, the three missiles in the distance suddenly began to decrease in altitude almost simultaneously. Ill go...it seems to be really effective... He quickly pressed the shutter button continuously to capture this most critical stage. Normal anti-ship missiles will also drop in altitude when the seeker searches for the target and enters the end of the attack, but these three target missiles do not have this function. In fact, they even had their guidance radar and radio altimeter removed. According to the setting, it will keep flying about 100-150 meters until it is disturbed, or the fuel and speed are completely exhausted. At present, their rocket engines have not even completely stopped working, so it is obviously impossible to be the latter case. The flight attitude of the target missile is not like a dive, but more like a fine adjustment of the flight attitude after discovering that it is not at the preset flight altitude. It also conforms to the working logic of interference mode 3. Finally, after about 40 seconds, the three targets fell into the sea one after another, and were instantly shattered by the huge impact of the water surface, causing a small splash of water on the calm sea. ??The weapons control officer''s camera captured the moment precisely. Thats it, ready for the second round of testing. He was finally able to put down his arms and take a break while reporting on the radio. At the same time, however. The three planned target missiles are not the only ones affected by interference from the satellite positioning system. ?Approximately 15 nautical miles further away from Huangshi, the Annan Navy''s HQ-15 Pham Ngu Lao frigate is sailing southeast. ?This ship is actually the Bejia class of the original Red Navy. It has a displacement of only 950 tons and has been in service for nearly 40 years. ?However, after the easing of relations with the United States in the late 1980s, limited improvements were made to the old ship, so it was able to continue in service. ?It appeared here completely by chance and had nothing to do with the tests on the Chinese side. It was just a routine delivery of supplementary supplies and rotation personnel to about a platoon stationed in a bunker on Nanhua Reef. Inside the bridge, Captain Ruan Yingjun is holding a telescope and looking at the sea in the distance. Certainly not for searching for any target. ?This is already the late 1990s. If we had waited until we could see the target with a telescope in naval battles, we would have been sunk countless times. Besides, even in the naval battles within visual range that occurred in earlier years, Annan''s navy has never won. In fact, since China has been completely unable to effectively control the southern seas for a long time, such transportation missions to the southern seas are generally considered to have no risks. Just because a reporter from Annan TV was conducting interviews on board the ship, he needed to take a series of photos showing the captain''s image. Captain Ruan, the photo has been taken. The reporter put down the camera: Can you please tell me how to determine our position in such a vast sea with no reference? Ruan Yingjun put the telescope aside, turned his head and explained: In the past, sextants were used to measure the angle between celestial bodies and the sea level to determine the longitude and latitude, but the accuracy was poor, and radios or landmarks were often needed to assist..." But now you can directly use the satellite positioning system. Here, now almost every ship of ours will..." ??He took the reporter to the satellite navigation terminal and pressed a few buttons to calculate the current position. But the words got stuck in his throat just halfway through speaking. The terminal shows that the altitude of their ship, which is sailing on the sea level, is... 350 meters? (End of this chapter) Chapter 620 Another confrontation with the Annan navy Chapter 620: Another confrontation with the Annan Navy ?Looking at the positioning results on the satellite navigation terminal, Ruan Yingjun''s whole brain stopped for a moment. Mainly to highlight a confusion. In fact, under normal circumstances, for surface ship units like them, no one will look at that height data at all. Everyone is sailing on the sea, so its all 0 anyway. There is an error of about plus or minus 30 meters at most. Because satellite positioning is not suitable for altimetry in principle, so this is normal. But todays 350 meters is so dazzling that its hard not to notice. It is basically equivalent to saying that they are sailing in the sky. Captain Ruan? As he said that, he quickly started working and restarted the positioning terminal with anxiety. ?So, he took two deep breaths and replied calmly: ?Most of the more advanced cruise missiles themselves are equipped with radio altimeters, and they will not adjust their altitude simply because the altitude signal provided by the GPS is incorrect and eventually crash. To this end, in addition to observing the interference effect on the missile, this round of testing also depends on whether the pod''s heat dissipation and power supply can maintain continuous operation for a long time, and whether it can target roughly the same current area under different postures of the aircraft. . The operation interface is naturally all in English, and there are a lot of abbreviations. It takes more than half an hour in total. ?Furthermore, in order to avoid differences being detected by the inertial navigation system, the target''s position information will not be changed immediately when interference first begins. Instead, errors will continue to accumulate as the interference continues, causing the ammunition''s path to deviate. So an ordinary reporter naturally cannot understand the interface, but needs the captain to introduce it. At the same time. The reporter looked at Ruan Yingjun, who seemed to be frozen in place, and shouted softly again. Wait a minute, let me refresh the positioning data. ??The latter interference algorithm is directly targeted at plane position data. ??Although the GPS positioning terminal on the Pham Ngu Lao is not the most advanced military terminal that can receive P codes, it is not a commodity that can be bought anywhere. Instead, it was specially purchased from the United States for refitting ships after the relationship between the two countries warmed up. After being called out suddenly, Ruan Yingjun almost froze. If everything goes well, many people will be promoted after returning. In the mid-air dozens of kilometers away, Tang Yiping''s No. 01 aircraft returned to its original position near the Shenhu Sands after making a large circle, and then lowered its altitude again to prepare for the second round of testing. ?Before entering the test airspace, he followed the process determined before takeoff, pressed two buttons next to the multi-function display, and adjusted the working mode of the "soft-kill self-defense countermeasure system" from mode 3 to mode 4. ??This interview is very important to the entire Pham Ngu Lao crew. The former focuses on interfering with altitude data. The advantage is that it will not affect the plane path of the interfered object, so it cannot be detected by the general path integration algorithm. However, the price is that it can only deal with lower-cost satellite-guided bombs. ?This interference algorithm is obviously very complex, so it needs to maintain stable interference for a long time to be effective. If it is only used at the end, the effect will not be too obvious. He felt like he had seen a ghost today. Fortunately, the two auxiliary fuel tanks under the wings can provide sufficient fuel, so there is no need to worry about insufficient range. As for Mode 1 and Mode 2, they are a mixture of the above two modes, but they require an external computer with sufficient performance to support sufficient computing power, which is not within the scope of today''s test. After entering the test airspace in mode 4 this time, the accompanying JH-7 quickly observed that the three target missiles did not continue flying northeast in the original direction, but turned northwest, and the deviation angle gradually increased. ??If it is an actual combat, it means that these missiles have completely lost their effect. ? With such a large route deviation, as long as it continues to fly for a while, even if the interference disappears later, the GPS data will suddenly drift back to the correct position and the guidance system will regard it as a route error and self-destruct. However, when such an interference effect occurs on the Fan Wulao ship dozens of kilometers away, it looks like a completely different situation. ?After Captain Ruan Yingjun restarted the GPS navigation equipment, the height data that had just been displayed as 350 meters indeed changed to +5m again. Within the normal error range. The longitude and latitude are not much different from before the restart. He finally breathed a sigh of relief. ?Sure enough, restarting can solve more than 95% of electronic equipment failures. This is our newly equipped navigation and positioning terminal. Just follow its route prompts while driving. The current celestial positioning is basically only used as a backup, just in case the equipment fails..." Ruan Yingjun, who recovered from the panic, wiped the sweat from his forehead, turned around and introduced himself to the reporters behind him. Having said that, it has indeed been a while since he actually used a sextant for navigation and positioning. After all, this thing is not only troublesome to use, but also needs to check the equatorial coordinates of the corresponding celestial body, which takes a lot of time to operate. "I see" The reporter who didnt know much about the navy just wrote down the captains introduction in his notebook: Then next, I need to take a set of photos of the captain personally at the helm As he was speaking, other media personnel accompanying him had already begun to set up cameras. Ill be at the helm myself? Ruan Yingjun was stunned. The captain personally takes the helm, which is basically a practice only in the sailing battleship era. ??As for modern ships, even ships with the technical level of the 1960s such as the Pham Ngu Lao, there will be a dedicated steering team, and the captain is only responsible for issuing command commands. Although the captain must have received steering training, unless he is from the steering class and specializes in it, such as Masamichi Terauchi (captain of Yukikaze) or William Tennant (captain of Repulse), there is almost no technical training. Maybe compared to a dedicated helmsman. But on the other hand, he also knew that ordinary people and senior leaders who watched Annan TV news reports most likely did not know about this. So it might make sense in terms of publicity ??Moreover, sailing on the high seas and oceans, with the support of a navigation system, is it possible that there will still be problems? So, after weighing it a few times, he nodded: Okay, but according to the regulations, I cant be away from the command position for a long time, so I only need to shoot a section. Speaking, he took over the steering wheel from the operator. Pham Ngu Lao is only classified as an "escort" in the Red Navy. Due to its small size, it is not very difficult to operate. In addition, the weather is clear and the waves are high today. Therefore, Ruan Yingjun even has extra energy to answer questions from reporters from time to time. . ?But while driving, Ruan Yingjun felt that something was wrong. ?The GPS navigation system kept prompting that the navigation direction was deviating, and he had just been adjusting the course according to the navigation display. My ship maneuvering skills have deteriorated to this extent? Ruan Yingjun couldn''t help but start to doubt his own level. After all, I havent really used it for many years. But even so, you cant even operate the ship to run in a straight line... Perhaps there is a problem with the steering gear system, causing the steering gear to have a deviation angle when the steering wheel is in the middle? ?? Various possibilities flashed through the captain''s mind. ??However, the open bridge and the hot weather near noon in the equatorial region in June made it difficult for him to maintain calm thinking, so he just continued to drive forward according to the GPS navigation data for the time being. ? He ??subconsciously looked up at the sky, but celestial navigation during the day can only look at the sun. However, near the equator, the accuracy of positioning based on the sun is very poor... Whats more, there are reporters and cameras nearby. If he goes out to use the sextant at this time, it seems that he is very incompetent as a captain. ?At this tangled moment, the pictures and numbers displayed on the navigation system suddenly began to jump crazily. Then an error was reported directly, and a bunch of garbled characters appeared. Its really a **** today...whats going on? ??Ruan Yingjun felt that God seemed to be against him. ??GPS, which has never had any problems in the past few years, has failed at this critical time today. ??If something goes wrong in the Annan News report, then his next promotion may be far away... Sure enough, I still cant trust those Americans too much After complaining in his mind, he could only resort to the old method of restarting. By the way, I had to keep chatting with the reporter to prevent the other persons attention from being diverted to the anomalies in the navigation system. But somewhere, Ruan Yingjun already felt that this voyage would not go smoothly. A few minutes later, the GPS connected to the satellite signal again. ?However, the data reappeared on the screen showing that the ship was now heading northeast rather than southeast. ?The position also deviated by about 20 nautical miles from before the restart. This means that he is now approaching sea areas that are not actually controlled by Annan. ?) Ruan Yingjun felt that he couldn''t hold himself any longer. ??He was clearly performing an ordinary transportation mission, so why did he end up here inexplicably? Report to the captain! A report suddenly came from the lookout post on the bridge: Direction 295, about 10 nautical miles away, there is an unknown type of ship flying the Chinese Navy flag! (End of this chapter) Chapter 621 Prevent the enemy from firing a second shot Chapter 621: Preventing the enemy from firing a second shot One sentence instantly made the atmosphere inside the entire bridge become anxious. You must know that the Chinese Navy in this year has only a few ships, and even fewer ships are in a state of combat readiness and can go to sea. ?So he just discovered that the navigation system had an error. After taking himself to this place, he still thought about slowly turning back without realizing it. In any case, these reporters have no sense of direction at sea. As for the reason for this weird phenomenon in GPS, we can only wait until we return home. ?Who would have thought that there would be such a coincidence? Captain Ruan, this However, the reporter next to him was still ignorant of the actual situation at this time. After hearing the report just now, his eyes lit up, as if he was just watching the excitement and didn''t think it was too big a deal. The reason why there is such a huge contrast is that according to Annans domestic propaganda, they have always been dominant in the many conflicts here ??Annan TV reporters are not high-level media officials, so they naturally have no way of knowing the real situation, so they cannot have any sense of crisis. ??Moreover, it was almost 180 wrong and drove into the sea area actually controlled by the opponent. It was impossible for him to explain to the other party that he had accidentally steered the ship in the wrong direction. ??A series of three fatal attacks directly paralyzed Ruan Yingjun. More importantly, the plan before coming out was to drive all the way south, directly to the vicinity of Nansha and then return. ??So the powerful anti-ship torpedoes and rocket depth bombs were not carried at all. ??This road is all sea areas actually controlled by Annan, and I never thought that there would be any conflicts. Why dont you make up an excuse and just make a U-turn? Since the weather was already good that day, even inside the bridge, with the help of optical magnification equipment, one could clearly see a small white dot in the distance that was not very clear. Shouldnt this area be under our control? Ruan Yingjun broke into a cold sweat. ??The accompanying reporter team immediately moved the camera lens originally pointed at him to the outside of the porthole. Who believes it? ??Furthermore, the fact that the waters near China and Saudi Arabia are actually controlled by China is completely different from the propaganda caliber in the past. ??If you really tell me, I''m afraid you''ll have to go to a military court when you go back. He has already begun to plan his escape. What are you going to do about it? ?There is simply no answer to this question. ?However, something that made his eyes darkened even more was yet to come. As long as there is a serious warship on the opposite side... But Ruan Yingjun, who has been in the navy for 20 years, knows the real situation. Back then, when the Chinese navy was completely at a disadvantage in terms of tonnage and sophistication, Annan suffered a series of defeats. Now its own ship is only 950 tons, with only artillery and torpedoes. It is said to be a frigate but is actually no better than a large patrol boat. How much bigger. Captain Ruan, why would a warship appear in this position? But if you just rush forward like this... Obviously, there is nothing better to do. The two ships were sailing in opposite directions at a speed of nearly 20 knots. The relative speed was actually very fast. ??As long as Ruan Yingjun was sweating and thinking about countermeasures quickly, the distance between the two sides was close enough that they could see each other with the naked eye. The lookout post again reported: Captain, according to the outline, the opponents ship should be a Type 053H2 frigate, but because the bow of the ship is facing us, the hull number cannot be clearly seen! It should be said that the Annan Navy has done a good job in building information about imaginary enemies. Of course, this is largely due to the fact that the Chinese Navy has not had many new ships worth the number in the past ten years. Let alone professional military intelligence analysts, even more experienced military fans will know them all. But the Chinese navy is poorly equipped, compared to the navy of the United States, Japan or even South Korea. For Ruan Yingjun, the feeling of oppression felt by a warship with twice the tonnage and many times the firepower rushing towards him was real. Captain, the other sides warship is rushing towards us! Are they challenging us? ??The reporter next to him, who was still ignorant and fearless, continued to shout, but at this time, his voice sounded completely noisy to Ruan Yingjun. The latter wanted to kill the noisy fool in front of him. ?But I can only think about it. ??Although the sun was still hanging high in the sky directly overhead, it scorched the entire bridge like a steamer. But Ruan Yingjun''s heart cooled down a little bit. The other side. ??The Chinese Navy on the opposite side has naturally discovered this suspicious Annan frigate a long time ago. Although during this voyage, 6 of the 8 launch tubes of the Huangshi ship were filled with target missiles, and all of them had been fired, but since we encountered an opponent who came to provoke us in our actual control area, we stopped There is no reason to treat it as invisible. Therefore, Captain Lin Weizhi ordered the correspondent to report the situation to the base, while quickly commanding the ship to change direction and sail directly towards the Pham Ngu Lao. Commander Gunner, order down, load all main and secondary guns and prepare for battle! 053H2 is a warship that was commissioned in the mid-1980s. Due to the limitations of the times, the command method is still relatively traditional and cannot be compared with modern ships with CIC. You still have to rely on roaring. "yes!" The gunnery commander stood at attention and saluted. Just as he was about to turn around and leave, he was stopped by the political commissar Sheng Jingyong next to him: Also, dont forget to prepare rocket depth bombs. These things are very powerful at close range! In 1974, the People''s Navy''s submarine-hunting submarines, which were at a disadvantage in terms of tonnage and firepower, were ready to use this tactic, but they were unable to use it because reinforcements arrived in time. Vice Captain Wei Zhuo on the side was numb. "Captain, political commissar, we still have to wait for specific instructions from our superiors..." ?Before he was transferred to this frigate, he always thought that he was already a person who did things out of the ordinary. ??But when the political commissar on a ship is more bellicose than the captain, someone has to step up and moderate it a bit... Dont worry, I know the superiors principles well. ?Lin Weizhi immediately said: We will definitely not fire the first shot. But they wont let them fire a second shot. Since the captain has said so, there is no way Wei Zhuo can stop anything. ?His own meaning was similar, he was just giving a routine reminder in accordance with his duties. In the few minutes that the three of them discussed and finally reached a decision, the soldiers from the gunnery department had already taken off the gun jackets covering the four Type 76 twin 37mm naval guns on the ship. ??The Type 76 naval gun on the Yellowstone looks no different from an old-fashioned hand-operated artillery, but it is actually a serious radar-controlled fully automatic weapon. It just looks rustic because there is no casing installed. ?At the same time, the ship''s 341A fire control radar and ZST-2D anti-submarine depth bomb director have also captured the target. ?Just waiting for the other party to make some irrational actions. Captain, the signal department reported that the opponent should be a Bejia-class light frigate. Most of the weapons on the ship have poor accuracy, but there is a group of triple 533mm anti-ship torpedoes. If it hits, the threat is still great. ?After hearing such a report, Lin Weizhi had almost no hesitation: Look for the opponents bow and rush over as fast as possible! Anti-ship torpedoes have a minimum killing distance. If they get close, they cant do anything to us. Also, let the signal department light up the lights and tell them that this is the Chinese Navy that is performing tasks in our waters. Let them leave immediately, otherwise they will bear the consequences! (End of this chapter) Chapter 623 Paranormal activity? Chapter 623 Supernatural phenomena? ?Ruan Yingjun certainly doesnt have the courage to play bumper boats. Actually, it was an accident that he came here today. As for the fact that the Yellowstone still refuses to back down after seeing the Yellowstone, its even more surprising... Captain, the other ship has hoisted a Delta flag on the mast. The signal officer again reported via the ship''s microphone. Delta flag When Ruan Yingjun heard the news, his first reaction was ecstasy: The ship on the other side is broken? But as soon as I thought about it, I immediately felt something was wrong. ?At first glance, it didnt look like there was anything wrong with this guy who was charging straight towards him and accelerating. Secondly...how could such a coincidence happen? The answer seems to be coming soon. He turned back to look at his deputy Fan Wenqi: In this critical moment, we need to take the lead! ? ? Continuing to remain stubborn will definitely not end well. The top priority is to find a reasonable way to explain everything that is happening now. "The current situation, I guess we have deviated from the original route by about 50 nautical miles, or even more." ??Although the latter didn''t know what happened specifically, he already had some guesses, so he didn''t ask any more questions and hurriedly followed Ruan Yingjun and climbed up. You lost control at this juncture, and you were targeting us? ?Hence, he quickly realized it was a trap. ?Fan Wenqi opened his mouth, but for a moment he didn''t know what kind of reply he should make. ?Fan Wenqi''s back was suddenly covered with cold sweat. He felt his blood surge and his vision went dark. Captain, this He felt that he was extremely unlucky. Soon I came up with a bold but seemingly feasible plan... Vice Captain, our satellite guidance system has just received a very strong interference, causing our ship to travel in the wrong direction. ?At this moment, there is no time for Ruan Yingjun to talk in circles. The vice-captain is his fellow countryman, and if something happens, the two of them are also grasshoppers on the same rope, so they are the most trustworthy people at the moment: Vice-captain, come up with me. At the critical moment of life and death, Ruan Yingjun''s mind was running at an unprecedented speed. But I didnt expect the problem to be so big. After finishing his sentence, he quickly climbed to the observation position on the bridge before the reporters nearby could react. He had indeed guessed what was wrong from just now. ??If he hadn''t held on to the railing next to him in time, he might have fallen directly onto the deck. ??The situation in this sea area is extremely complicated. The originally set route was just trying to find every opportunity. Now it is 50 nautical miles away. God knows what the **** they have sailed to. And if combined with the approaching ship in front... ?? I thought this voyage was a good opportunity to simply gain some credit, but who would have thought that such a shocking mistake would happen. I wanted to show my face, but ended up exposing my butt... ?However, now is not the time to delve into these issues. Captain, what are you going to do about the current situation? The right way is to be able to solve the problem. The only ones who know about the route problem are you and me at the moment, and maybe the navigator in a while. He was also promoted by me and is very trustworthy, so as long as we turn around now, there will be no problem. ??Ruan Yingjun quickly expressed his thoughts: The trouble right now is the reporters. We cant let them ask questions. They have to give a reasonable explanation and push away the responsibility for going in the wrong direction. Its best to leave some evidence along the way so that they can further blame them when they go back. ?Seeing him look like he had already planned, Fan Wenqi felt a little relieved: Tell me, what do you need me to do? I will put on a play later. Remember to cooperate with me and interfere with our magnetic compass instructions. Actually, this is what Ruan Yingjun is most worried about. According to regulations, at least two navigation methods need to be used for comparison when driving a ship. If so, then the GPS error alone will not lead to this result. But he had to answer questions while driving the boat just now. It was too difficult to do two things at once, and he had never had any problems using GPS navigation in these years, so he lost his vigilance, so he didn''t pay attention to the display of the magnetic compass at all. Thats why we have the current crisis. And if we want to throw the blame away, there is only one way to explain it. It is said that the magnetic compass has also been disturbed. Fortunately, this is not difficult to do. ? Just find someone to bring a strong magnetic field interference source to wander around. After returning to the bridge, Ruan Yingjun quickly put on an anxious face ??This doesn''t even require pretense, because he''s really in a hurry right now. I just did a celestial positioning with the deputy captain using a sextant, and found that our position and course were completely messed up. With one sentence, the already tense atmosphere in the command cabin instantly fell silent. But the positioning of celestial bodies The captain originally wanted to do celestial positioning at noon near the equator. The error would be unimaginably large, and it would have no reference value at all. ??But just as he started to speak, he was hit **** his lower back. Looking back, he found that the deputy captain was standing behind him, shaking his head imperceptibly. His body stiffened for a moment. But as Ruan Yingjuns single-handedly promoted confidant, the Navigator made the right choice at this critical juncture. Shut up. Its a mess, what does it mean? ??As expected, the reporter fell for the trick and shifted his attention to this new topic. I cant say, the information provided by all the navigation systems does not match each other. ?At the same time, Ruan Yingjun took advantage of the situation and turned the rudder directly to the right, making a not urgent but still obvious evasive turning action, which could be regarded as showing his intention to retreat. Now, at least there will be no risk to personal safety. You see, GPS and magnetic compasses are completely inconsistent in the most basic directions. ?At the same time as he said this, Fan Wenqi also took steps and began to walk around without leaving any trace inside the bridge. ?The reporter walked into the operation console with a camera and found that the magnetic compass''s turntable was rotating irregularly in an extremely outrageous way. "this" Even as a novice who has never learned navigation knowledge, he knows the basic principles of geomagnetic positioning. Now the magnetic compass is spinning like a wheel. When it is fast, he can''t even see the words on it clearly. It has obviously lost its direction. function. Then GPS We have just restarted twice, and the positioning information is different each time. ??Ruan Yingjun didn''t lie this time, but he couldn''t reproduce or create the GPS problem, so he could only say it with bare teeth, and then pray that there would be some evidence left in the video the other party had just taken. However, just when the reporter was doubtful, the GPS navigation terminal reported an error again. Look, thats it! Ruan Yingjun naturally didn''t know that this was because Tang Yiping''s No. 81091 aircraft that participated in the test had flown back again. He didn''t have time to think about the reason in detail. He just called out to God for blessings in his heart, and it happened again at this critical moment. Came once: The exact same situation happened twice just now. Now when I restart the device, the coordinate information will be abnormal. The reporter who was completely kept in the dark was dumbfounded and quickly called the camera to focus on this area. He felt as if he had captured something more interesting than warships sailing out to deliver supplies. As for the fact that the ship has turned 180, it is natural that we no longer care about it. As the navigation device restarted, the data displayed on it was the same as what he saw at the beginning. You see, regardless of these two plane coordinates, this number represents the height value. Ruan Yingjun dragged the reporter to his side, pointed at the shocking "350m" and said: We are clearly at sea level now, but the GPS positioning data shows that our ship is traveling 350m in mid-air? At the same time, he also complained in his heart: Its really going to be an aircraft carrier now The reporter who had not believed it before now almost had his eyes bulging out, and he shouted out loud: Could it be...this is another Bermuda Triangle? The late 1990s, because we are about to enter the new century, is a time when all kinds of "unsolved mysteries of the century" are rampant. Including the world-famous Bermuda Triangle Devil Sea Area. I dont know who made the first report. In short, there are more and more reports of various aircraft and ships disappearing in this sea area. ??Although many professionals believe that this is a hoax to attract attention, the public is obviously very interested in this occult event. And this reporter is apparently one of them. ?Of course, in addition to satisfying my own curiosity, if this kind of thing is written into the news, it will obviously attract enough attention... Ruan Yingjun naturally didn''t believe those rumors, but now was obviously not a good time to pursue these details. He had originally prepared a series of rhetoric to enhance the credibility of his explanation, but since the reporter had directly mentioned the Bermuda Triangle, he had obviously figured out a plot and logic on his own. In this case, you must comply with the other partys wishes. I think...its very possible! Ruan Yingjun replied without conscience. At the same time, I silently apologized to my navigation teacher... (End of this chapter) Chapter 624 Turbofan 10, full authority digital control system Chapter 624 Turbofan 10, full authority digital control system I wonder what Captain Ruan thinks is the reason for this unusual and mysterious phenomenon? ?The reporter was obviously not prepared to let Ruan Yingjun off easily, but for the latter, as long as the other party could shift his focus from the incident just now to other places, everything else would be easy to talk about. So, he could only bite the bullet and give his answer: "I think the specific reasons should be left to scientists to study, but judging from my perspective as an old seaman, it is very likely that there is a strong and chaotic magnetic field around, so the magnetic compass will be disturbed. At the same time, the strong magnetic field It will also have an impact on electromagnetic wave signals, and this is how the erroneous data given by GPS navigation should appear..." As he spoke, Ruan Yingjun himself did not believe what he said. ?However, judging from the immersed performance of the people opposite, they may really believe it... ?Of course, it is a good thing to believe it, as it can save you a lot of trouble. ?After the nonsense, Ruan Yingjun, who was a little thirsty, added: In addition, everyone, this is a serious matter. Regarding the mysterious events that happened just now, I hope you will pay attention to the content selection when reporting, and focus on the content that was booked before the voyage. Small fish and shrimps like him are so straightforwardly requesting the content of the report. If you rest in other times, it will only have a negative effect. As for the media, the less you want them to report it, the more they want to report it. ?But after all, Ruan Yingjun had laid the groundwork just now, and now that he was bluffing, he really bluffed the opponent. As for Chang Haonan... During this period, he was working on the J-10 improvement project in Rongcheng, which is only 100 kilometers away from Fucheng. As summer turns to autumn, the first fully produced turbofan 10 prototype B0101 has also completed various tests before leaving the factory, and was transported by an IL-76 transport aircraft to 624 for complete bench performance testing. ??And it will become the trigger for a series of other events in the future, and even spawn many literary works. The reporter''s lips trembled slightly. He looked at the GPS positioning system next to him, which still displayed obviously abnormal data, and the magnetic compass that rotated irregularly from time to time. He seemed to be thinking of the mysterious and terrifying legend about the Bermuda Triangle, and nodded with a pale face. . ??The last time China and France conducted a joint anti-submarine exercise, they also caught an underwater villain squatting on the edge of the sea area preparing for reconnaissance intelligence by complete coincidence. It wasnt until nightfall that day and it was confirmed that the other party had no intention of returning again that he turned around and left. As a result, the two planes, which had almost reached their fuel limit, naturally returned quickly, while the Huangshi hung far behind the Pham Ngu Lao for several hours. Later, it was just a rationalization for this behavior. After all, Ruan Yingjun wanted to go back from the beginning. At this point, they simply judged ?The other party is scared. When this story went through many twists and turns and finally reached Chang Haonans ears, it was already almost two months later. Although these two times seemed to be good luck, according to the Thousand Cockroach Law... ?However, although the latter was said as a piece of music, to Chang Haonan''s ears, it was not entirely a piece of music. When you find one cockroach in the house, there may already be a thousand cockroaches in the dark side of the house. ? Thanks to the larger pressurized cargo compartment, testers from the 606th Institute and Liming Group also flew to the 624th Institute together with the test prototype. The time spent at the airport is longer than the time spent in the sky. On the other hand, it is obviously impossible for China to know that this ordinary equipment test has been defined as a occult event by the opposite side due to many coincidences and human factors. Just hit and fly and pass. In fact, this judgment is correct. It was also on the way from Fucheng Airport to the 624th Institute that he heard these little episodes in the testing process from Xu Yang, who had been here for almost two months. In other words, there will only be more similar cases that go undiscovered. There is still a long way to go to protect maritime rights and interests ?When the pick-up convoy arrived at Institute 624, two old acquaintancesDean Li Rongzai and Chief Designer Jiang Fuhewere already waiting at the entrance of the design building. After some pleasantries, the latter faced Chang Haonan, who had just gotten off the car and was carrying a bulging briefcase. He looked up and down for a long time, and then sighed softly: Before today, I never dreamed that someone would come to us for testing on three different projects in two years His expression and tone are very complicated. ?If I have to say it, its probably envy mixed with a little bit of unwillingness. After all, from the turbojet 14, to the turbofan 9, and now to the turbofan 10. Chang Haonan''s movements were so efficient that Jiang Fuhe watched almost the whole process. ??The key is that as a turbine institute, 624 Institute is already responsible for pre-research work on aero-engine related technologies. As a result, others can complete the project faster than I can do preliminary research. At this meeting last year, Jiang Fuhe had just converted the 9-level thrust-weight ratio derived from the R-79V-300 turbofan engine core from a conventional model to a vertical take-off and landing model to avoid the 10-level thrust of the turbofan engine. Edge. It turns out that its only been a year, so why did you start bench testing? ? Even if Turbofan 10 is actually a new project that has been approved three times, is this too outrageous? Furthermore, the thing he fears most is ?After Chang Haonan has studied the turbofan 10, will he start working on a vertical take-off and landing engine again? ?Jiang Fuhe has now understood that once the person in front of him enters a certain field, other people will basically have no chance. But you cant avoid Chang Haonans projects for the rest of your life, right? On the one hand, as the chief designer of Institute 624, although he admits that his skills are not as good as others, he still has some dignity. On the other hand, as the ancients said. Today we will cut five cities, and tomorrow we will cut ten cities, and then we will have a good night''s rest. He started to look around the surrounding areas, and the Qin soldiers arrived again. You cant escape just by hiding... ?He was thinking about these things in confusion, and he felt a little cold for a moment. Fortunately, Li Rongzai next to him didn''t have any obsession with this, and immediately added in a half-joking tone: Moreover, it also helped us build a complete aero-engine testing standard system. I, an old man who only became the dean this year, have been blessed... A speech with high emotional intelligence made up for the slightly awkward atmosphere just now. Everywhere we are, we are all comrades in the aviation industry system, there is no need to be so detailed... ?Chang Haonan also felt that Jiang Fuhe''s mood seemed to be fluctuating a bit, but he didn''t care about worrying about it at this time. After all, the Category II prototype of Project 10 is still waiting for the engine ?The enlarged body is unlikely to be pushed by the AL31FN. Mr. Chang, during this period, with the assistance of the Computing Institute of the Academy of Sciences, we have completed the upgrade of the No. 101 High Altitude Observatory ahead of schedule in accordance with your requirements. Although Jiang Fuhe feels very bad now, he will not delay business because of personal feelings: In addition, prototype B0101 has been sent to us the day before yesterday. As long as you confirm it is correct, you can start testing. Actually, this is also the reason why Xu Yang appears in Fucheng. She was not directly involved in the Taihang project. However, because the Turbofan 10 was designed with the full authority digital control system (FADEC) in mind, the test content and test methods are very different from the old model. In addition, it is earth-shattering for China. The theoretical thrust of the Ghost is 14 tons, so that the control logic and bench structure of the SB101 high-altitude platform need to be improved to complete the test. As for why the first prototype was called B0101 Because the baseline model of the Turbofan 10 is actually a single-engine model prepared for the J-10, which is the performance shown by Chang Haonan during the PPT lecture on 611. On the contrary, the turbofan is expected to be installed on the J-11, which is the derived reduction model. Push model ?Through calculations by technical personnel from the 601 Institute and Sukhoi Company, it was found that with the current J-11 airframe design, after the sea level thrust is increased to 2*13.2 tons, the marginal benefits brought by further improvement will be very small. Which translates into higher reliability and service life. ?Especially for the Chinese Air Force, which has not yet fully understood the third-generation fighter jets and third-generation turbofan engines, but may soon begin to come into contact with third-and-a-half-generation aircraft and engines. Its always good to save a little more energy. ?It was only due to changes in the Air Force equipment naming rules midway that the baseline type was called Turbofan 10B, while the reduced-thrust type was called Turbofan 10A. ?Chang Haonan raised his wrist and looked at the time. Its still early for dinner. Lets go to the high-altitude platform to see the preparations for the test! (End of this chapter) Chapter 625 Test preparations for the 375th generation aviation engine Chapter 625 Test Preparations for the 3.75th Generation Aviation Engine ??When Chang Haonan saw Haiyide in the test workshop, the latter was holding a walkie-talkie and sternly directing on-site technicians to transfer the B0101 prototype from the dedicated engine bracket to the spreader on the high-altitude platform. ?Compared with the aviation engine control system that was mainly hydraulic and mechanical in the past, supplemented by some analog signals, the turbofan 10 with full authority digital control capability looks much simpler in appearance. Because a large number of hydraulic and pneumatic pipelines originally used for control and action functions were canceled and turned into several engine control units and cables distributed around the aircraft. In addition to reducing the reliability problems caused by these complex mechanical structures, it can also reduce a lot of weight and cost of the engine. Combined with the simpler 2-stage fan + 7-stage high-pressure compressor structure compared to the third-generation aircraft engine, the engines national military standard dead weight was finally reduced to an astonishing 1560kg. For comparison, the dead weight of two typical third-generation engines, F110 and AL31F, calculated according to national military standards, is in the range of 1750-1800kg. Of course, 1560kg is still not the end point. The reason why the Turbofan 10 is called the 3.75-generation engine is because although its structure has almost infinitely moved closer to the fourth-generation engine, most of the materials and production processes are still at the level of the third-generation engine. After all, for China Aviation Industry, even the production of the second-generation turbofan 9 was quite difficult before this. Therefore, in order to ensure that the project schedule will not be affected by material issues, Chang Haonan did not adopt particularly radical weight reduction measures in parts such as the casing and blades when conducting the overall design. ?Furthermore, based on the current capabilities of Liming Factory, even after a comprehensive process upgrade, the speed of manufacturing turbofan 10 is still not optimistic. ?After the hoisting step was completed, Haiyide heard a burst of slightly noisy footsteps behind him. But the situation of Turbofan 10 is quite special after all. Typical fourth-generation engines, such as the F119, can even control the weight to around 1,450kg, thereby achieving a theoretical thrust-to-weight ratio at sea level of close to 11. Because once the electronic control system loses control, it cannot be shut down in an emergency like purely mechanical equipment, and may even endanger the safety of the high-altitude platform itself. ?According to the division of tasks, after component-level testing, he, the chief engineer, is responsible for the manufacturing and final assembly of the first engine. ??The latter raised his head and watched the field engineer on the operating frame begin to compare the drawings and carefully insert the pipes into various key positions of the engine. This is why Chang Haonan was able to spare time and go to Chengdu to stay for two months. ??With almost all test content currently being successfully passed, wearing multiple hats does not seem to place too much of a burden on Chang Haonan. The two shook hands. Comrade Haonan, long time no see. ?In particular, the Turbofan 10 is the first model in China that plans to adopt this technology from the beginning of the design (it was tested earlier on the Turbojet 7). However, this is the part that we will pursue in the future. ? Full digital control is an excellent upgrade for engines and aircraft, but it also creates a lot of trouble during testing. Having completed the command task, Hai Yide hung the walkie-talkie back on his shoulder, and then brought Chang Haonan to a nearby place while explaining the current work progress: The main reason is that compared with before, this test has a lot more backup pneumatic and hydraulic actuators that need to be connected. Not only us, but also the technical staff of the 624th Institute have done it for the first time. We are still familiar with the improved test bench, and it is expected that the B0101 prototype will be ready for testing within two to three days. So after all, the two of them have not seen each other for nearly a quarter. Looking back, I happened to see Chang Haonan leading someone in. Naturally, no one would raise objections to this without opening their eyes. For ordinary projects, if the chief engineer and chief engineer take turns to go online and often do not see each other for dozens of days, there is a high probability that trouble will occur. The pipelines currently connected to the engine function as an "external emergency backup". ??Although the possibility of such serious accidents is very small if it passes the factory test, it is still necessary to take precautions after all. It doesnt matter. Chang Haonan waved his hand: Part of the time I saved from previous design tasks was to leave room for production and testing. At the theoretical and computational level, there are always ways to improve some efficiency, but when it comes to the material level, we still have to be cautious and respect objective laws. "Besides, before officially starting the test, you have to check the improved control rules of the bench system, which will also take a few days." "I can''t hold you back too much..." Haiyide put his hands behind his back and said with some emotion: Compared with foreign countries, I felt that our development speed was not slow anymore, but after working on projects with you in the past two years, I always feel that there is a force behind us pushing us forward. Its totally different to say this. They are all comrades responsible for the same project. There is no way to say that we are holding back. Its just a matter of learning from each others strengths. Chang Haonan waved his hand, then rubbed his neck, which was a little sore from looking up for a long time, and turned his attention to Haiyide again: "By the way, Mr. Hai, how is the situation at Project 11 during this period? Especially the verification machine prepared for us?" Although they are not the same system, Institute 601 and Institute 606 are both in Shengjing and can be regarded as brother units. Moreover, the Taihang Project is actually a part of Project 11, so some basic information can still be obtained. ?Although he sometimes talks on the phone with Yao Mengna, who is almost based in Shengjing, it is impossible to talk about the project on the phone due to circumstances and reasons. The assembly of components has almost been completed. The next step is to gradually increase the localization rate starting from the seventh batch, and then replace it with new domestically produced airborne equipment. Haiyide replied: "As for the replacement verification aircraft, Factory 112 will set aside a quota of a two-seater J-11AS for us to conduct installation experiments. I even took a special look before coming to Fucheng this time. The body structure has been almost completed. , but the main subsystems have not been installed yet. "The main reason is that the turbofan 10 uses digital electronic control, so the pipeline layout and flight control program will be slightly different from the current mass-produced model. We have to wait until we send the next batch of B0201 prototypes. in order to continue the production process. If nothing else happens, it is expected to be delivered for test flight at the end of this year. There is no difference in hardware between turbofan 10A and turbofan 10B. They even come from the same production line. It is just that the former limits the military thrust and maximum thrust values ??at the control system level. Its a bit like some car engines. As long as the external computer is refreshed to the second level, stronger performance can be unlocked. ?In the file sequence within the aviation industry system, the two share the same production code, but the Air Force differentiates them at the equipment level. Therefore, except for the life reduction test, all other items are conducted using the baseline model, and model A does not need to go through the process again. After finishing this part of the conversation, Xu Yang, who had been waiting behind Chang Haonan just now, took a step forward: Next, I will introduce the simulation verification program of the digital control system. Come with me, next door. ?The group walked around the high-altitude platform with dense cables hanging down, and came to the control room that was all too familiar to Chang Haonan ? He ??is probably the person who has spent the longest time in this room outside of the 624 staff. ??Xu Yang still didn''t talk nonsense and directly pushed the information he had prepared long ago into Chang Haonan''s hands. As for herself Purely unscripted, no need. "The system adopts open-loop control for the engine starting process. Considering the three starting methods in practical applications, namely electric start, compressed air start and propane gas start, the high-altitude platform test control system presets three different rules, respectively. It is a fixed time program fuel supply, a rotational speed function fuel supply and an appropriate fuel-gas ratio supply. There is no one-to-one correspondence between them. Since the turbofan 10 uses full-power digital control, in most cases, the speed function fuel supply scheme should be adopted, using the engine speed as the linear mapping quantity of the fuel flow..." "The steady-state working process after startup adopts closed-loop control. Considering that both the J-11 and J-10 will adopt flight control systems integrated with thrusters, there is no need to consider the traditional physical speed control rate in this part, and the equal-reduced speed control is directly used. , the throttle command is directly sent by the flight controller through the communication port or in the form of a PWM signal, so the specific algorithm is exactly the same as what you left in the ECU program, so I wont repeat it..." In addition, there are some extreme parameter restrictions for safety reasons, including physical speed, command speed, T4 temperature..." ? Xu Yang talked for nearly two hours without any interruption, and he was obviously very familiar with the test control logic he designed. After everything was over, she picked up the thermos cup next to her and took a sip of water: Do you think there is anything else that needs to be added? Obviously, she is very confident in the results of her work. ?However, Chang Haonan did not give an answer immediately. Instead, he stared at the "Modeling of System Control Objects and Actuators" part for a long time. Ten minutes later, he finally raised his head again: I think there should be more. (End of this chapter) Chapter 626 Cant beat it? If you cant beat it, join! Chapter 626: Cant beat it? If you can''t beat it, join! "ah?" It was not Xu Yang who made this exclamation. Actually, she just looked up at Chang Haonan in surprise, and her expression didn''t even change much. On the contrary, several other technicians from the 624th Institute standing nearby were looking at Chang Haonan and Xu Yang who were sitting on both sides of a table with somewhat blank eyes. To be honest, we cant blame them entirely. ??The two people just communicated without even using a pen during the entire exchange, which was indeed a bit unfriendly to other people around them. ? Even if a considerable part of them were directly involved in the design of this simulation verification program, it is still difficult to follow the ideas introduced by Xu Yang just now. As a result, I havent fully understood the previous content, and Chang Haonans opinions have already been given. It will naturally feel like "I lowered my head and picked up a pen in math class". "As for packet loss... For the TTCAN bus used by FADEC, if the data packet fails to be sent, the protocol will only allow the reference message to be retransmitted immediately, but not other data. This will significantly affect the accuracy and speed of system control, and even cause system failure. stable." But fortunately, this time at least I was talking and writing, and there was a lot of written content, so compared to the complete confusion just now, at least a few people understood the key points. It goes without saying about the time delay. If there is a significant gap between the control command issued from the operating end and the response from the action end, I am afraid that no matter how good the pilot is, he will not be able to control the aircraft normally. One person asked with some hesitation. Having said this, Chang Haonan stopped the pen in his hand, pushed the two pieces of paper that were already filled with formulas to the front, and then raised his head. There is no problem with the algorithm and control logic of the verification program. What I mean is that there are still some test contents that have not been taken into account. In that case...doesnt it mean that FADEC has shortcomings in stability? ?Chang Haonan instantly felt that the light hitting the paper had dimmed... The other voice was obviously trembling: "After all, the delay of the mechanical control system is certain, as long as you adapt to it, it will be fine, and there is no data loss problem. However, these electronic controls occur randomly. Do you need to keep a complete mechanical system as a backup? " Although electronically controlled delays and packet losses occur randomly, the impact on performance can still be reduced or even eliminated through highly robust control algorithms. "The dynamic characteristics of the engine operating near the steady-state point can be simply described by a continuous state space equation. If this equation is discretized, a 2n+1 seed system will appear. The actual engine operating characteristics will be in these 2n+1 kinds. Random and continuous jumps between them significantly prolong the convergence process of the steady-state system..." Chang Haonan explained while writing: "For example, we can first analyze the simplest form of delay and packet loss. Assuming that the delay is short and constant in each sampling period, and the number of consecutive packet losses also has an upper limit n, then within a sampling period , there may be two controller outputs reaching the actuator end..." Chang Haonan just took a drink of water at this time, quickly swallowed it, and then shook his head: "In fact, just like our normal computer Internet access, the signal transmission bandwidth of the engine''s ECU unit and cables is actually not as good as that of home computers and network cables. Therefore, even during a normal flight, the problem of unsmooth information transmission is very serious. normal." ?This calculation made the people around him stunned. Facing Xu Yangs questioning eyes, Chang Haonan finally picked up a pen from the side: One of the huge advantages of FADEC is weight reduction. It is naturally unrealistic to retain mechanical backup. "Ahem... Engines equipped with full-authority digital control systems generally will not be equipped with a complete mechanical control system. Therefore, various operating conditions that may be faced must be considered, such as network-induced delays due to various reasons during flight. and packet loss." ?However, since Chang Haonan has raised this problem, there must be a solution: When the people who were scattered around the room just now saw this scene, they almost took a few steps forward in unison and gathered behind the two of them. Ours is a wired connection, so there shouldnt be particularly exaggerated delays or packet loss "So when I designed the engine control program, I used a distributed control gain matrix to improve the stability margin for delay and packet loss. But how much is this margin specifically and can it satisfy the fighter under various operating conditions? The following requirements still need to be verified during the testing process. "If the stability margin is not enough, you need to add another engine control unit. If the margin is excessive, you may have to reduce one. After all, an ECU and related cables together weigh dozens of kilograms... " Distributed control gain matrix...this...can still be like this?" ??Jiang Fuhe, who had been sitting next to Chang Haonan just now, suddenly had a flash of enlightenment in his eyes. ?After turning the research and development focus of the 624 Institute to vertical take-off and landing engines last year, the biggest problem before him was the control response and stability of the engine''s vertical power output. You must know that vertical take-off and landing is not like horizontal flight. The impact of larger or smaller thrust will not be great. If the thrust output is unbalanced during this process, the aircraft will lose stability and crash directly. However, the high-pressure gas during vertical take-off and landing has to undergo a deflection of 90 or even greater, and the possible external disturbances are more complicated... Hence, the requirements for the engine control system are much higher than those for ordinary engines. ?In the current testing process using the external vertical nozzle of the old model turbojet 7 engine, even if an electronic control unit is used, the reliability of the vertical output process cannot be guaranteed. But Chang Haonan''s sudden reaction just now gave him a complete idea. ? Jiang Fuhe only feels that it is a pity that he is not an expert in the field of control algorithms, so now he has an idea but it is difficult to implement it... Xu Yang, who was sitting opposite, had just taken the two pieces of paper into her hands. While others were still asking questions, she had already read the contents quickly: In this case, I only need to add a packet loss and delay simulation to the test control system...and in essence, packet loss can also be equivalent to the input delay of the engine..." Therefore, it can be considered that the input end of the engine has a delay that increases synchronously with the passage of time, so that the control input signal received by the engine is only related to the measured value Of course, the result measured by this method is the maximum number of consecutive packet losses allowed by the system, not the packet loss rate. It should be fine, right? "Can." Chang Haonan nodded decisively: If you use the maximum number of consecutive packet losses, you only need to slightly change the limit parameter setting logic. This is a completely independent unit and only takes a few hours. Then wait for my news and Ill get it done for you within two days. ??Xu Yang threw the two pieces of paper on the table, stood up, called the names of several engineers from the 624 Institute, and hurriedly left the control room with them. Mr. Chang. After the room became deserted again, Jiang Fuhe approached Chang Haonan again: Can you give me a complete idea about the distributed control gain matrix you just mentioned? The latter was slightly startled. Mainly because I didnt expect anyone to ask this kind of question. Because this is part of the design process. ?However, it makes sense when I think about it. After all, 624 Institute does not only do aerospace engine testing, they are also a turbine power research institution. Even in the previous life, many core machines were built by 624. ??Its just that now because of him, he has almost become a little transparent... This is actually inspired by the flight control program algorithm on the host computer... ?Chang Haonan said and took the pen and paper again. He did not lie about this matter. It was indeed inspired by the flight control program. It''s just that it''s not our own flight control program, but the American''s. ? A huge problem with the flight control of later-generation F35 fighter jets is that there will be huge rudder control delays under certain flight conditions. Until Chang Haonan was reborn, this problem had not been solved... So when he developed the turbofan 10 control program, he almost thought of this issue first. ?Of course, it was impossible to tell these contents to Jiang Fuhe, so Chang Haonan told another version of the story. ??Anyway, as long as the knowledge you teach is correct. Looking at the draft paper that was gradually filling up in front of him, Jiang Fuhe, who was still a little angry before, became calmer. Mr. Chang, our institute currently has a vertical take-off and landing engine project. Do you think... after the turbofan 10 project is completed, are you interested in taking over? People must learn to reconcile with reality. If you cant beat me, just join, theres no shame in it (End of this chapter) Chapter 627 The confusing vertical takeoff and landing Chapter 627 The confusing vertical takeoff and landing Facing this completely sudden request, Chang Haonan was a little confused at first. After all, when he first arrived here in the morning, although he didn''t think deeply about Jiang Fuhe''s emotions, he could still feel them. Why did it take less than half a day for your attitude to make a 540 turn? As you hear the word, it doesnt mean join but directly invites oneself to take over a project. ??Moreover, its not just that. More importantly, I still didnt expect that there would be such a thing as a vertical take-off and landing engine. Although at this point in time, Institute 624 should indeed have obtained some technical information of the R79V300 engine. But he was very sure that he had never had a project like this in his previous life. Even if Chinas research on vertical take-off and landing aircraft must be said to exist, it is limited to the Warhammer-flavored J-6 vertical take-off and landing model in the 1970s. The idea is extremely wild, which is to hang four lift fans directly outside the J-6. But that has to be sold together with a light aircraft carrier or amphibious assault ship. Fortunately, Jiang Fuhe was not a very narrow-minded person, and he knew rationally that the other party would most likely not be aware of the twists and turns in the process, so he took several deep breaths in succession to calm down his emotions that were almost red-hot just now. ?Vertical take-off and landing is something that can be done, but it can also be done without. ?Heaven and earth conscience, he really just wanted to satisfy his curiosity by asking this question, and had no other intention at all. But Jiang Fuhe didnt feel right about it If it is really implemented, in addition to giving it to the naval aviation force for fun, it will most likely have to be used for export. Arms sales of this level depend on international influence. The ones that follow are basically the works of aviation enthusiasts, and they are countless. Therefore, Chang Haonan did not choose to agree or reject immediately, but asked about the origin of the project itself: ?Now the instigator actually asked this question directly, which has the beauty of an in-person NTR. "I just...don''t know what the vertical take-off and landing engine you are talking about...comes from?" After all, the combat effectiveness is definitely not as good as that of fixed-wing aircraft with the same technical level, and China does not have the same need as the United States to bully children all over the world. In fact, for China today, the priority of vertical takeoff and landing aircraft is definitely not high. Mr. Jiang, its still early before the turbofan 10 is finalized and put into service. I cant make a decision now on whether I can participate in a new project... Although due to Chang Haonan''s intervention, Huaxia''s level in the aviation industry and even the entire manufacturing field is now much higher than in its previous life. At the moment, China in the late 1990s is obviously not up to par. After all, regardless of the feasibility, at least an idea has been truly formed at the aviation industry level. After all, the reason why he studied vertical takeoff and landing was because the original thrust-to-weight ratio of 9-level thrusters was occupied by something like the turbofan 10, which is infinitely close to the fourth generation of core machines, so he had no choice but to take an eccentric approach. Limited resources must still be focused on key projects. But comprehensive national strength cannot be reversed in one or two years. Even so, it is already the most serious project in this direction. But when I think about it, it becomes even more uncomfortable Although it is said that his project was killed by Chang Haonan, during the whole process, the latter probably did not realize what happened... Before others exert their strength, I have already fallen... Im so angry, but theres nothing I can do. Mr. Jiang? ?Looking at Jiang Fuhe, who had an increasingly troubled expression on his face, Chang Haonan was a little worried that he might have irritated the other person, so he cautiously gave another tentative shout. "ah?" "oh" Jiang Fuhe decided to reconcile with himself for the second time. ?This kind of thing happens only once or countless times. So, he tried to keep his tone as calm as possible: "Mr. Chang may not know something. Our hospital raised funds by itself a few years ago and purchased some technical data of the R79V300 engine. It was originally intended to be used as the technical motherboard for the fourth-generation engine. Book." But it was later discovered that the performance of the core engine was not enough. Even if our countrys production process was not taken into account, the thrust-to-weight ratio would be 8.5-9, which does not meet the power requirements of the fourth-generation engine. Actually, of course he knew this story. Although the R79 engine is already a bit like a fourth-generation engine in terms of core engine level, most of the technology and design ideas are still third-generation, and it is unlikely that it will be used in the third and a half generations. At least the stage pressure ratio of the compressor cannot be compared with today''s turbofan 10. ?The choice of a radical core aircraft structure is largely just to reduce the weight of the engine to support the vertical take-off and landing function of the Yak 141 aircraft. So it is reasonable to squeeze out less than 10 level push weight ratio. Otherwise, the Russians themselves would not have to bother developing the AL41F and AL51F later. ?However, at this time, you should definitely let the other party continue talking. ?Hence, he deliberately made a puzzled expression, and even adjusted his sitting posture specifically to suit his unrealistic acting skills: Is there such a thing? Yes, we will later apply some new technologies based on its design to create a fourth-generation core machine with a 3-8-1-1 or 3-7-1-1 structure. When Jiang Fuhe said this, he leaned back in his chair, but did not feel the expected heart palpitations. He was probably relieved: As a result, before we officially started taking action, Academician Liu invited us to participate in the design review meeting of your Taihang project, and found that this idea had already been preempted, and the degree of completion was very high. "Although the state''s investment in the aviation industry has increased in the past two years, it is obviously impossible to support two similar aviation projects at the same time. But having said that, the technical data of the R79 is self-raised by our institute, so it is impossible to just After much deliberation, the only way out was to let it go back to its old business. ?At this moment, Chang Haonan finally knew what was going on with the weird look on the other side that started this morning and lasted until just now. It turned out that without knowing it, I almost killed a project that others had high hopes for ??Although in the original timeline, the project derived from the R79 core machine ended without any problem, at least in Jiang Fuhe''s current view, the "culprit" must be Chang Haonan who can''t run away. ??After a slight pause, and after adjusting his mentality again, Jiang Fuhe continued: "We have been studying vertical takeoff and landing for a year now, and other parts are fine. It is just that the thrust between the lift fan and the main fan is not well balanced. We have done several simulation tests with old models of engines. "The thrust fluctuates greatly. If it were to be installed on an airplane, it would probably overturn midway through takeoff." So, when I just heard you say that the distributed control gain matrix can be used to improve the accuracy and stability of thrust control, I wondered if this technology could also be used on our model. Technically there must be no problem Chang Haonan lowered his head and was about to analyze the pros and cons of this vertical takeoff and landing project, when he suddenly caught a key word from the other party: Wait...you just said...lift fan? "yes." Jiang Fuhe nodded: "We have also studied the scheme of Yak 141''s main engine and lift engine. Although the principle is relatively simple, the lift engine is completely useless in level flight. The dead weight is too large, and more importantly, between different engines, Its too difficult to balance the lift. So we were thinking about whether we could use one engine, but output the thrust through two sets of fans. This would at least make the balance a little easier. Of course, the demand for the engine itself would be higher..." Hearing this, Chang Haonan couldn''t help but sigh. China actually has some capable people in the field of aviation development. You must know that the JSF project on the other side of the ocean at this time is only a few PPTs. The vertical take-off and landing models of X32 and X35 have not yet been seen, and there are only a few words about relevant technical solutions. In other words, Jiang Fu and their ideas are definitely not backward, but they are limited by objective conditions and many of their ideas cannot be used. In view of this, Chang Haonan swallowed back the polite words of rejection that were already on his lips: Vertical take-off and landing engines are indeed a promising technology. In this way, after the test of the turbofan 10 is completed, I will systematically organize the related technologies of the distributed control gain matrix into materials. As for hosting the project Chang Haonan waved his hand: After the A and B types of the Turbofan 10 are completed, the next step should be to turn it into a true fourth-generation engine. This process may take several years. "For me personally, firstly, I probably can''t spare the time and energy to participate in two projects that are far apart. Secondly, it''s not easy to take away the beauty of others. This engine is a self-funded project of your hospital. Even if it is done in the future, After being transformed, you should be the main capturing unit. However, if Mr. Jiang needs it, we can communicate at any time. We are all colleagues. ?Chang Haonan''s response can be said to be quite appropriate. ?Even Jiang Fuhe felt a little embarrassed because of his thoughts in the previous half day. Then, I would like to thank Mr. Chang in advance for his support... As they spoke, the two shook hands again. Only this time, Jiang Fuhe finally showed a sincere smile. (End of this chapter) Chapter 628 No way, he gave too much Chapter 628 There is no way, he gave too much For Chang Haonan, the discussion about the vertical takeoff and landing engine with Jiang Fuhe can only be regarded as an insignificant episode in this test work. The improvements to the SB101 high-altitude platform are almost complete. Xu Yang and the engineers from the 624th Institute are responsible for the remaining work. There is no need for him to intervene. So, in the next two days, Chang Haonan''s main work was basically to work with Li Rongzai, Jiang Fuhe and others to write a new evaluation guide for ground testing of aero-engines based on electronic control. Of course, compared to the wave of big moves two years ago that almost caused the entire aviation industry to turn upside down, this time it is just adding supplementary content to the original standards. Technically speaking, the workload is only a fraction of a complete national military standard item, and Chang Haonan does not need to complete all the details, as long as he can outline and identify the core items that need to be completed. The remaining tasks will naturally be completed by Institute 624. More importantly, today, there is no pressure from outside the technical level. You know, when Chang Haonan handed over the "Aeroengine Inlet Distortion Test and Evaluation Method" to Yan Zhongcheng, the latter did not even dare to express his position directly at the first time. Instead, he sent the thing to the National Defense Science and Technology Department almost overnight. Working Committee. As for the follow-up, it was natural for Ding Gaoheng to make the decision to update the content related to the national military standards, and then take advantage of the opportunities created by Boeing''s acquisition of McDonnell Douglas to consolidate the jurisdiction of the entire civil aviation industry under the Committee of Science and Technology. ?This series of actions seems to come easily and naturally, but there are actually many dangers hidden behind it. ?Especially at the end of 1996, when the Science and Technology Commission initially decided to essentially stop the MD90 project and shift to cooperating with Tupolev on C808/909, Ding Gaoheng was under considerable pressure at the top. ??Although the Aviation Meteorological Safety Verification Center jointly established by China and the European Union is also established in Fucheng, it is not close to the 624 Institute. ?Jiang Fuhe asked with a twinkle in his eye. In this era when information exchange is not yet smooth, there is no opportunity for face-to-face contact, and naturally there is no chance to know too much news related to China-Europe cooperation. ??Moreover, Im not sure Chang Haonan has any details that are not in the news. ?Now that the past is behind us, when we look back at these experiences, we can certainly laugh at them. ??More importantly, as a foreign-related research institution, the former is not entirely subordinate to the same management system as other institutes under the aviation industry. If Chang Haonan hadn''t later cooperated with the European Aviation Administration and Airbus, Boeing and McDonnell Douglas were forced to agree to a series of conditions that they had never dared to dream of in the past, proving the correctness of the new route. Will be successfully counterattacked by the original vested interest groups. Especially since the topic has already been discussed. ?This matter has even been reported by CCTV News before, so of course he would not really know anything about it. Hence, there is basically no chance of contacting them at the 624 Institute. Furthermore, the four water spray systems used on the two A330AITs were also directly produced by Rongfei and then exported. Chang Haonan cannot always pay attention to such unimportant projects, but currently almost all cooperation with Europe is promoted by him, so he naturally knows a lot more than Jiang Fuhe: Of course, Haofei will send people over there, and the plane should not be too far away from its first flight. But it would be absolutely false to say that there was no pressure and tension at that time. But people are always curious. So, later on...we really sent people to help Airbus design a water spray test machine for the A330 platform? Sure enough, Jiang Fuhe''s eyes brightened when he heard this. For the other two people who dont fully understand the situation, what they talk to Chang Haonan the most about after work these days is naturally the topics related to the above. ?Especially at the beginning of last year, during the negotiations with the EU in Ho Kyung, it was particularly exciting. But before asking what you really want to ask, you have to lay the groundwork a little bit. You should know that in several other cooperation projects, although China is also responsible for some core technologies, it is generally carried out as a solution provider, or simply as a technical cooperation. Selling parts and components directly to Europe in the form of complete subsystem exports is still the only one. Moreover, that is Airbus... ? ? ? Although there have been several typical cooperation projects between China and Europe in the past two years, for any practitioner in the aviation field, Boeing and Airbus are naturally different from other companies. Still not quite the same. ?Especially after the merger between Boeing and McDonnell Douglas, a series of chaos quickly occurred within the new company. ?Although the original McDonnell Douglas is the merged party at the corporate level, according to the agreement, a considerable number of their senior executives can still hold important positions in the new company, even rivaling the number of senior executives of the original Boeing. The two parties soon had differences in their business philosophy. Such corporate infighting was almost immediately reflected at the level of market policy. In addition, in this timeline, the price paid by Boeing to reach the memorandum of understanding is much higher than in the previous life. Therefore, in 1998, Airbus already has a vague intention to compete with the former. Li Rong next to him was looking at the two people chatting excitedly, a little confused. ?Obviously when Chang Haonan arrived at Institute 624 two days ago, Jiang Fuhe''s attitude was still a bit conflicted. How come in the blink of an eye, I cant see it at all... Mr. Chang, do you think our aviation power station can have a chance... Jiang Fuhe finally asked what he wanted to ask from the beginning. Well... maybe we need to work harder..." ?Chang Haonan''s answer was a little funny and helpless. As expected, no one is satisfied. ?Two years ago, when MA60 first entered into reciprocal technical cooperation with European aviation companies, everyone already regarded it as an extraordinary achievement. It is said that in its year-end summary, the Aviation Industry Corporation of China devoted nearly 10 pages to describing in detail the entire cooperation process and the details of the cooperation agreement. As a result, everyone is already thinking about exporting core products such as aviation engine parts to Europe... ?Of course, this kind of insatiable thinking is definitely a good thing for industrial development. After a brief pause, Chang Haonan continued: "Although the research and development of Turbofan 10 is progressing relatively smoothly now, Mr. Jiang, you also know that this is a model project for which I have concentrated all the aviation engine research forces across the country. For this reason, the research and improvement of other types of aircraft engines have basically come to a standstill. state." "So, if we really want the aerospace industry to enter a period of rapid development, we still have to wait until the Turbofan 10 comes to an end, then redistribute the trained teams back to various factories, and then let them be trained separately. This process... always It will take a few years to return it..." ?Hearing this answer, the expression on Jiang Fuhe''s face relaxed. A few years, he can still afford to wait. Furthermore, according to his summary, the "a few years" mentioned by Chang Haonan is most likely kept to himself. Until that afternoon, when Chang Haonan left the conference room and went to the high-altitude platform to confirm the readiness for the bench test, Li Rong was sorting out the technical documents scattered on the table while quietly pulling Jiang Fuhe beside him and asked in a low voice. : Old Jiang, when did you and Mr. Chang become so familiar with each other? ?Although he did not say it explicitly, both parties knew that before this, Jiang Fuhe had always had a mentality of "intellectually understanding but emotionally difficult to accept" regarding Chang Haonan''s squeeze out of the 624 Institute project. But just now, it seemed that he had completely looked away. Is this... ?Jiang Fuhe straightened his gray hair: "There is no way, Mr. Chang gave too much..." (End of this chapter) Chapter 629 Turbofan 10, ignition successful! Chapter 629 Turbofan 10, ignition successful! The other side. Xu Yangs work efficiency is really hard to say. Previously, she promised to complete the simulation verification program of the digital control system within two days, but in the end it only took 46 hours. From the outside, it is just two new signal input lines connected to the surface of the engine that has been mounted and connected to various pipelines. But in fact, based on the program that has been written and packaged, a random signal input delay algorithm is plugged in to simulate packet loss or high delay during data transmission. "Thanks a lot." Chang Haonan looked at Xu Yang, who had disheveled hair and a tired look on his face, and said a special thank you for the first time. "It doesn''t matter, we can''t delay everyone''s progress..." ?? Xu Yang had been in an excited working state for nearly two days. Now that he relaxed, he was so sleepy that he could hardly open his eyes. He yawned and waved his hands: I will not participate in the subsequent testing sessions. I have to go back and catch up on some sleep. If there is a problem with the simulation verification program of the station, just go to my dormitory and knock on the door... But I think... it should... not..." ?After completing the final round of comprehensive inspections and confirming that the engine and test bench are properly prepared, the heads of the Turbofan 10 project such as Chang Haonan, Hai Yide, and Li Rongzai and the leaders of the 624 Institute still need to sign for confirmation respectively. ?However, Haiyide''s tone was quite firm, and he had obviously already made plans. In this way, everyone in the control room can intuitively see the real-time images during the engine test, instead of just judging from the sounds reaching their ears and the dry data displayed on the computer as before. The working conditions of aviation development. ??The most obvious thing is that a complete camera monitoring system is set up inside the test chamber. Unfortunately, it failed in the end due to lack of relevant conditions. While testing the Turbojet 14, Chang Haonan always wanted to leave some real image data. After all, it is the first domestic engine with independent intellectual property rights, and it will definitely leave a mark in the history of China''s aviation industry. It was a short sentence, but the speed of speaking slowed down at the end... ?Hai Yide, who was standing in the front row, gently pushed Chang Haonan and pressed the latter onto the chair behind the podium in the control room: Of course, something as big as aero-engine test-running cannot be done as easily as eating and drinking. "this" It can be regarded as a wish that can satisfy Chang Haonan. The entire bench test process of Turbojet 14 only left a few blurry photos. Compared to when Chang Haonan first came here two years ago, the test station today has been much optimized compared to the past. ??As the technicians evacuated the test cabin where the high-altitude platform was located, the thrust platform holding the engine moved slowly along the slide rail to the exhaust cooling device. ??Moreover, you can also save the video by the way. ?At such a critical moment, it would be unsightly to get entangled over this kind of thing. By the time the entire procedure is completed and the aviation engine is officially launched, it will already be the morning of the next day. Mr. Chang, its up to you to give the order to start testing! In the presence of the chief engineer and chief division, according to general practice, the command command should still be given to the former. ?Hence, he immediately calmed down, took a deep breath, pointed into the microphone and said in a calm tone: The first test of prototype B0101 high-altitude platform is started! When I tested the turbojet 14 and turbofan 9 before, those two models could not be considered new engines. Which is not the case with Turbofan 10. ?This B0101 machine has only been tested on the ground a few times under factory conditions. Due to limited conditions, the traditional startup method was still used at that time. At the moment this is the first use of electric start. Hence, the testing process is naturally much more detailed. Received, start! After receiving the order, the operator pressed the engine start switch on the operating platform in front of him. The display screen in the operating room shows six groups of images from different angles. Compared with the sound and light effects of air-gas starting, the electric starting process is almost silent. Although electric starting still uses air in the final step of pushing the starter, this process occurs in places where the camera cannot see it. ?Similarly, the N2 speed of the high-pressure compressor will continue to increase during this process, but it cannot be observed by the naked eye because of the obstruction of the two-stage fans outside. Switch off the turbo heater and front starter! ?Chang Haonan issued the second instruction. The principle of the aviation engine starting process is somewhat similar to that of a car. Even many small aviation engines are started with a battery + P0 motor structure. But for a large-thrust turbofan of the size of Turbofan 10, this kind of trivial work is definitely not feasible, so an external power supply is required For example, a power supply vehicle, or an auxiliary power system (APU) integrated in some aircraft. In the bench test environment, these two components are not actually set up, but as a complete startup process, their existence still needs to be simulated in the test system. ?On another monitor in the control room, various parameters captured by the sensor have also been displayed one by one. Soon, the N2 speed reaches the ignition fuel supply line. Combustion chamber, ignite! ?At this time, the engine finally had some obvious response. ??As the operator rotates the starting handle, the aircraft engine ignition nozzle generates a high-voltage electric spark in the combustion chamber, igniting the atomized fuel and the high-pressure air mixture that has just been sent into the combustion chamber by the compressor. A faint flame emerged from the tail nozzle, but it only lasted for a moment. ? It is not difficult to tell from the sound that the engine''s operating speed is steadily increasing. At this point, the engine has officially entered working condition. A burst of warm applause erupted from Chang Haonans side For an engine that is actually installed on the aircraft, the entire starting process will be completed automatically under the action of the flight control system. But for the engine testing process, it is a high-risk subject. From a mechanical point of view, the engine''s transition from static to dynamic is a transient process, involving various non-periodic changes with huge fluctuations. From a control perspective, it is an open-loop process. If there are loopholes in the control logic or algorithm, the working state may not converge. Hence, a smooth start is definitely a good start. ??Taking advantage of this moment, he also left his seat in front of the podium. ? There are hundreds or even thousands of links in the high-altitude platform test, and naturally there are personnel specifically responsible for issuing command commands. ?Chang Haonan, the chief designer, should focus on testing data. The reason why I directed the first three steps is because of a symbolic meaning. The idle thrust of the engine finally stayed at 145 kilograms of force and did not change. This number made many engineers from the 624 Institute who were exposed to the turbofan 10 for the first time show slightly surprised expressions. After all, airplanes dont have gearboxes. The high-temperature and high-pressure gas must be output through the tail nozzle, and the energy generated must also be converted into thrust. The idle state itself is not to "propel" the aircraft, but is just to maintain the minimum working state of the engine for stable operation. From this perspective, the smaller the number that can be stabilized, the better. The number 145 is already extremely high. Mr. Chang, how do you keep your engine running at such a low operating condition? Is there really no risk of stalling? ??Jiang Fuhe approached Chang Haonan and asked softly. The latter slowly came to the screen displaying the test data, looked at the numbers on it, and replied at the same time: This is one of the benefits of full-authority digital control technology. "Although whether the minimum steady-state thrust is larger or smaller will not directly affect the performance, and I have not specifically optimized this parameter, the electronic control system can inherently bring higher control accuracy and response speed, which is also beneficial to work. Fine adjustment of status. Its just an accident (End of this chapter) Chapter 630 No, the push-to-weight ratio is really 9? Chapter 630 Isnt it right? The push-to-weight ratio is really 9? For a brand-new engine like the Turbofan 10, the high-altitude bench test process is still relatively complicated. ?Just the various 0-altitude ground conditions from idle to low speed took nearly a week to complete. This is still when all projects are completed in one go and there are almost no surprises. Mr. Chang, we should start measuring the high-speed working conditions today, right? ? Jiang Fuhe looked at Chang Haonan, who was instructing the technicians to adjust the test data, with a little enthusiasm in his tone. ?Although the performance indicators of aeroengines are diverse, it is impossible to describe the performance with just one or a few numbers. But even an industry insider like him cannot avoid focusing on performance such as intermediate thrust and maximum afterburning thrust. It can even be said that Jiang Fuhe has been looking forward to it from the first day when the B0101 prototype was transported to Institute 624. After all, this is still a key indicator for grading aeroengines. Well, today I will gradually increase the speed to the maximum in stages. If the minimum continuous stabilization time can be met, then the working condition of the afterburner will also be removed. But strictly speaking, I am afraid..." How have these projects of his gone through any kind of spiral? They all rise straight up like a rocket! ? Jiang Fuhe is not someone who works behind closed doors. Naturally, he has also tried the other partys research methods and tools such as TORCHMultiphysics. While the two were talking, the test over there had already begun. It turns out that although the work efficiency has indeed been greatly improved, to put it bluntly, it is still the same iterative calculation, but the spiral speed is faster. ?Mainly, he feels that the former is a bit unreasonable. ?However, Chang Haonan simply rubbed these past common senses on the ground. ??Far from reaching the magical level of being able to pass the test directly from the drawings to the test workshop. When doing industrial design, many times the initial parameters are guessed based on experience, and then iterations are constantly adjusted based on the test results. Although it was not deafening, Jiang Fuhe couldn''t help but raise his voice: Mr. Chang is still humble. Having said this, he rubbed his temples, which were swollen due to continuous work: On the contrary, it is a matter of going through this kind of thing over and over again. In the past, it was basically a situation that could only be encountered if you were extremely lucky. It means that the parameters at the beginning were chosen well. I have the impression that there was almost no rework, including the previous turbojet 14. Although it was repeated several times, it was all in the early years. After you participated, it almost went all the way to finalization..." ?Different from the idle operating conditions tested in the previous few days, when the compressor speed is increased, the sharp roar of the engine can be heard even in the control room. If everything goes well, the sea level performance should be completely completed by the end of August. After that, the simulation height will be gradually increased, and the pressure will be slightly smaller..." In fact, before Chang Haonan came over, Jiang Fuhe even had the tangled thought of wanting to see each other''s jokes. ?Chang Haonan turned his head and glanced at the watch hanging on the wall next to him: Im afraid it wont be completed until early tomorrow morning. ?Just like social progress is also an upward spiral. It is normal for several iterations to occur in this process. So he believed that Chang Haonan''s level was not reasonable. He shook his head: To be honest, the projects you have hosted are probably the smoothest ones I have ever seen in my more than 30 years of work, both in terms of R&D and testing Ten points or even nine points are unreasonable. ??If you have always relied on strong luck before, then no matter what, with a project as complex as the Turbofan 10, you should have accumulated enough risks, right? And if it werent for luck ?Then Jiang Fuhe will begin to doubt whether there is something wrong with his worldview. The test has now started for a week. The results are obvious. ?Chang Haonan did not lose, but his worldview lost... ?Thinking of this, Jiang Fuhe sighed: Sometimes, Mr. Chang, I feel like you are not developing a new model, its as if you are directly using an already mature model. ?He may not have thought that this unintentional remark was actually infinitely close to the truth... In fact, when Chang Haonan was working on other small projects, the process was similar to others, and he had to go through constant trial and error to find the correct design range. At most, we can rely on richer experience to make the process faster and avoid making any big mistakes. However, in key projects such as turbofan 10 and die forging press... He is cheating. As Jiang Fuhe just said, the system can provide all the parameters of a mature model. It''s just that except for the time when I was really anxious when designing TORCMultiphysics, I would not take out the results directly, but would just go through the research and development process again... ? ? ? To really talk about it, for today''s Chang Haonan, it is a project that is directly cheated. On the contrary, they are in the minority. ?However, most people will only pay attention to such large projects. As for "small" jobs such as the Air Police 200 early warning aircraft, many times his name is not even displayed in a conspicuous position, and not many people know about it. As for the work done in the name of Torch Group, it is impossible for outsiders to know the specific division of labor. So, the only things that left a deep impression on everyone were these cheating parts... Is this... Chang Haonan touched his chin: On the one hand, its luck, and on the other hand maybe I have a special talent, which is that I am always unexpectedly accurate when choosing design parameters. However, this kind of thing is still unreliable in the end, so no matter what happened in the past, the testing process must still be completed, otherwise it will be troublesome if something goes wrong..." He couldn''t admit directly that he was cheating, so he had to use "special talent" to explain it. "Fine" ?Jiang Fuhe was stunned for a while, and finally sighed with a little helplessness. Just think of it as setting the basis of the worldview... Todays testing process was as smooth as before. Originally, the thrust speed of an aircraft engine should be a thrilling process. Whether it is China or abroad, if most aviation engines have any major problems, such as fires and explosions, it basically occurs during this process. But in the case of Turbofan 10, it is monotonous and makes people feel sleepy. ??If it weren''t for the constant high-frequency roaring in his ears, Jiang Fuhe might really have fallen asleep. After all, after the high-altitude platform equipment is opened, whether it is command or operation, it has no direct relationship with him. 20% 40% 60% 80% ?As the engine enters the experiment again and again, the N2 speed to which the high-pressure compressor is pushed continues to increase, gradually approaching the upper limit of the set operating speed. On the screen showing the test data, the thrust curve also increased all the way from the initial 145kgF. Finally, without turning on the afterburner, the stable sea level thrust corresponding to the maximum speed stayed at 8410kgF. 8.41 tons! ifier Looking at the thrust value on the screen in front of him that was so smooth that it was close to a straight line, Jiang Fuhe was suddenly shocked and woke up: So accurate? As an aviation engine designer, compared to the inferred value of 8.4 tons itself, he was more surprised by the consistency between the actual test results and the paper value during the design process. Jiang Fuhe clearly remembered that in the expected parameter manual sent to Institute 624 along with the B0101 prototype before the test, the intermediate thrust was calibrated to 8400kgF. ?The 10 kilogram difference can be regarded as a test error and can be ignored. If you think about it He turned his head somewhat stiffly and looked at Chang Haonan, who was standing not far behind him: Mr. Chang, the thrust-to-weight ratio of your thrust-to-weight ratio 9-stage turbofan engineisnt it really capable of reaching 9? "Um?" The latter had been spinning around all day, but when he was suddenly asked this question, he was a little unresponsive: Then...what if? Jiang Fuhe was also confused by this rhetorical question. It took a while before he came back to his senses: "Whether it is domestic or foreign, generally speaking, when the push-to-weight ratio is 9, the default is between 8 and 9. If it exceeds 9, it is said to be a push-to-weight ratio of 10... After all, there is still room for publicity for subsequent improved models. Come." "Just like the AL31F and F110 engines, although they both claim to have a thrust-to-weight ratio of 8, the actual thrust-to-weight ratios of the basic models calculated according to our national standards are only about 7.0 and 7.3 respectively. They are new sub-models until recent years. , to truly reach a thrust-to-weight ratio of about 7.6. But this turbofan 10...Although the afterburner has not been turned on yet, I estimate that according to your calibration accuracy, the actual measured maximum afterburner thrust should really be 14 tons..." (End of this chapter) Chapter 631 Afterburner! Chapter 631 Afterburning! Jiang Fuhe''s guess is naturally correct. ?Chang Haonan and him looked at each other in confusion for a while, then nodded: Although from a strict engineering perspective, I cant guarantee what the situation will be like until the afterburner is actually turned on and the data is measured. But... at least as far as my goal is concerned, it is indeed to achieve a sea-level afterburner thrust-to-weight ratio of turbofan 10 of 9. At this point, perhaps I felt that what Jiang Fuhe just said might cause ambiguity, so I added another sentence: I mean, the real 9, not the rounded one. In fact, the reason why the two people have different understandings of this matter is mainly because of the different backgrounds of the times. ?In the 1990s, everyones main equipment was actually products developed in the 1970s and 1980s. (Of course, most of Chinas main equipment is still from the 1950s and 1960s...) During the Cold War, both sides of the Iron Curtain tended to report the performance of their own equipment as high as possible, whether it was purely for reasons of face or practical considerations of exerting military and psychological pressure on the other side. A typical example is that both the United States and the Soviet Union have long been obsessed with using specially modified aircraft to set records. More importantly, China has gradually begun to establish its own industrial discourse system and no longer completely follows foreign countries. At that stage, countries publicity about equipment performance gradually turned pragmatic, and many opportunistic habits in the past were gradually corrected. But now that we are doing this... ?At that time, if we think about it a little bit in publicity, we can directly say that my country''s aerospace engines will directly jump from the second generation to the fourth generation level. "Um" Jiang Fuhe sighed. ?Thinking of this, Jiang Fuhe''s train of thought stopped. "Um?" ?It seems that even now, as long as the other party can complete the turbofan 10 project, they can just sit back and wait for the evaluation of academicians... Although after 2010, with the gradual rise of Internet thinking, the habit of drawing pie on PPT reappeared both at home and abroad, and it was even crazier than during the Cold War, but at that time Chang Haonan''s academic habits had been basically finalized. The impact was relatively minor. ??If we follow past international practices, there would be no problem if the turbofan 10 in front of us is simply called a "thrust-weight ratio 10-level aeroengine." This is when some ideas that are incompatible with this era appeared. "well" ?However, although Chang Haonan has been reborn for almost two and a half years, the time when he really received education and learned to do projects was at the beginning of the 21st century in his previous life. Its all about making things difficult for yourself. In his opinion, Chang Haonan is no longer just down-to-earth. And Chang Haonan himself can basically just wait to be evaluated as an academician. Therefore, for Jiang Fuhe, who has been working since the 1960s and has almost completely experienced this stage, the concept in his mind is naturally the same. It has almost no real meaning, but both sides enjoy it. Because he suddenly realized... On the other side, Jiang Fuhe immediately stood in awe after hearing Chang Haonan''s explanation. It is narrow-minded after all. Others are in their twenties and have basically reached the upper limit of the existing system, so naturally they no longer care about this. ?Thinking about it this way, it even made him feel a little inferior. Mr. Chang, the intermediate thrust data has basically stabilized. Do you think we should start turning on the afterburner directly? ??While Jiang Fu and emo were talking, the test commander next to him asked Chang Haonan, and at the same time handed a temporary performance report to the latter''s hand. The thrust curve just now has been extremely smooth, so there is nothing interesting to see. ??And more complex data cannot be presented on a piece of paper in real time. So Chang Haonan focused on the fuel consumption of the intermediate thrust. For military models, economical efficiency and environmental protection level are less important to consider. Fuel consumption more importantly affects the aircraft''s range. Especially, the thrust of turbofan 10 has increased by about 10% compared to AL31F. While greater thrust brings performance improvements, it also means more fuel is consumed during the same working time. He turned the report to the other side and quickly found the numbers he was interested in. 0.0745kg/(Nh) ?At this time, Jiang Fuhe, who had adjusted his mentality, also came over: This...the fuel consumption is almost 6% lower than the AL31F. Considering the total pressure ratio of this engine of 25, it is already quite amazing. Chang Haonan''s slightly tired face finally had a slightly satisfied expression and nodded: Well, it can basically offset the increase in fuel consumption caused by the increase in thrust, which ensures that the range of the third-generation aircraft after the engine replacement is basically the same as before. ?Although this number is slightly higher than the F110''s around 0.07, the latter is specially optimized for subsonic performance after all, and it will definitely take advantage of the fuel consumption of intermediate thrust. Considering that the fuel consumption of the AL31F basic model, which is also in the afterburning state, is as high as 0.0795, the fuel economy of the turbofan 10 should be considered quite good. After all, before the engine enters the variable cycle era, whether it is the third generation or the fourth generation, it cannot escape the limitations of the laws of physics. Thinking of this, Chang Haonan took a deep breath and put a piece of paper in his hand on the table next to him: Get ready to use afterburner. ??If it is an aircraft engine that did not have full authority electronic control before, then all items must be determined before the start of each test, and it is difficult to add them midway. But for the turbofan 10, as long as there is no problem with the engine, just issue an additional command on the console. "yes!" The test commander returned to his station, pointed into the microphone and ordered in a deep voice: Attention everyone, activate the afterburners! The operator at the other end of the control room then pushed the simulated throttle valve to the extreme "afterburner" position in the control computer. ?Almost at the same time he made the operation, the roar of the engine that had already made everyone numb became increasingly sharp. The images of several cameras also appeared dazzling white due to overexposure in an instant. The next few seconds felt like centuries. With the lens aperture automatically adjusted to a more suitable size, everyone was finally able to see clearly what was going on inside the testing workshop. From almost all angles of the camera, one can clearly see the translucent bright purple tail flame with the Mach ring behind the engine tail nozzle. On the working condition display next to it, the cooling power of the water-cooling device in the exhaust section of the high-altitude platform was also fully charged in an instant. "I go" When Jiang Fuhe saw this scene, his whole body trembled: "If the temperature of your tail flame is 50 higher, I guess I will have to stop the test..." Is that so? Because the afterburning conditions have not stabilized yet, Chang Haonan''s attention was not on the parameters just now. ?Now when I heard what the other party said, I realized that I had basically reached the upper limit of this platform... ?Jiang Fuhe nodded dumbfounded: When this platform was put into use two years ago, Academician Liu and I expected that it could support high-altitude simulation verification of aviation engines within twenty years. It turns out that only two years have passed, and I almost couldnt resist it His tone was full of emotion. Huaxia''s development speed in aviation development is indeed 100 million points different from previous expectations. Happily, its a good difference. It feels like its time to put the construction of cabin No. 2 on the agenda... Theres no need to be too anxious Chang Haonan comforted the other party while waiting for the parameters to stabilize: "The core engine of the Turbofan 10 should be the most powerful aviation gas turbine in our country for a long time. Even if a model with a large bypass ratio is developed in the future, it will not be able to have an afterburner at the back. " So...although it may not last for 20 years, it shouldnt be a big problem if it lasts for five or six years. Five or six years Obviously, Jiang Fuhe next to him did not get much comfort from this. He opened his mouth several times, but remained silent. First of all, I had to shout at the top of my lungs when speaking in this environment, which made me a little tired. ??And Im also afraid of hearing some inhuman words from the other partys mouth again. After all, today has already been a big blow... In a moment of anxious silence, the thrust curve that had been fluctuating just now gradually stabilized. Since the principle of the afterburner is to inject fuel directly into the gas or airflow behind the fan for combustion to increase the afterburning speed, the thrust stability is definitely not as good as the intermediate thrust state. It''s pretty good without too obvious ups and downs. As for the result, it was already expected for the two people. At best, its just a verification. Sure enough, 14150300 kilograms of force Jiang Fuhe took off his overalls hat and read out the number to himself. At this moment, he was completely relieved. (End of this chapter) Chapter 632 Upper replacement of AL31F Chapter 632: AL31Fs superior replacement Compared to the intermediate thrust state, the afterburner cannot be opened for a long time, otherwise it will have a negative impact on the life and stability of the engine. Therefore, in order to collect the minimum duration data required for a single round of experiments, afterburning experiments can only be conducted in an intermittent manner. In the end, it was just as Chang Haonan estimated at the beginning. lasted until the next morning. So much so that most operators changed shifts in between. ?Of course, as the project leader, Chang Haonan must keep an eye on it. Fortunately, he has gained the ability to "save" sleep time since his rebirth. Some time ago, when the work pressure in Rongfei was not too high, I slept a lot, so I was able to hold on. Jiang Fuhe, on the other hand, is basically just soy sauce. Having said that, he is already old after all, and he is not as strong as a young man like Chang Haonan. There are some things that he is indeed powerless to do. So, he has been sitting at his workstation for seven or eight hours. ?If you stand up suddenly now, it is inevitable that the eyes will become dark due to insufficient blood supply. The afterburning experiment data has been collected! Chang Haonan meant to let the sixty-year-old comrade go back to rest and send him a copy as soon as the results came out. The test commander also belongs to the leadership position here, so he cannot change shifts like ordinary operators. "yes!" But the bloodshot eyes in his eyes even made his vision slightly red, so after thinking about it for a moment, he nodded: As for the noise ??The reason why I also stayed here to hold on was because I wanted to see the results of the sea level afterburner test as soon as possible. Thats it, were ready to end the experiment and summarize and output the data. When he spoke, his body even swayed a little - By the second half of the night, I was almost too sleepy to hold on. For a person who has been working in aviation for most of his life, without the roar of turbines in his ears, he may not be able to sleep well... But Jiang Fuhe''s mentality at this time is a bit similar to that of a fan who stays up late to watch football and buys the result. How could he possibly agree to such a thing. After a slight pause, he said in a less formal tone: After the engine is shut down and cooled down, you can go back and rest first. Other comrades can take care of the rest of the data. ? Even though it is clear that the performance of this engine should be quite amazing, there is always a sense of excitement about winning a lottery ticket. ?The other party opened his mouth, probably because his first reaction was to refuse. ?So he slept directly on a bench in the control room. ?Although he was confident in the engine test results, Chang Haonan still breathed a sigh of relief when he gave this order. By the time Chang Haonan could no longer tell whether the roar of the engine or his own tinnitus was what was ringing in his ears, the test commander finally stood up: "Report!" The result is out? At this time, Jiang Fuhe, who seemed to be sleeping deeply just now, had put on his coat and came back behind Chang Haonan. ??It can only be said that the sword is indeed immortal. Although the ability to stay up late is not comparable to that of young people, even if you fall asleep, you can still capture the key words - ??Just when the test commander shouted the report, he was actually awake. The test is over, but the results still need to be processed before they can be output. Chang Haonan did not look back, but went straight to the computer that recorded the data. Previously, the intermediate thrust data was measured continuously, so the results could be output immediately after the experiment. However, the afterburner test also included a lot of idle conditions for cooling the engine, so these parts had to be eliminated. Let me do it, Im familiar with this. After all, Jiang Fuhe is from Institute 624, and he has just had a good night''s sleep to recharge his batteries, so he can indeed operate much faster than Chang Haonan. In about ten minutes, the compiled report was generated on the desktop. Jiang Fuhe couldn''t even wait to print it out and clicked on the content directly. The thrust part, they have all seen it just now. Although the value fluctuated somewhat with the long-term use of the afterburner, it is still generally around 14150KgF and has not changed much. As for fuel consumption Performing a total of 1.5 hours of afterburner testing, the average result was 0.189kg/(Nh). In the first 15 minutes, which is the first round of afterburning experiments, it can even reach 0.182kg/(Nh). By comparison, this indicator of AL31F is 0.198, while the performance-oriented low-speed F110 is already around 0.210. Compared to the middle thrust, the performance advantage compared to the AL31F is still a little smaller... ?Chang Haonan looked at the data on the screen and said with a somewhat pityful tone. It made Jiang Fu and Zhicui Yahuazi next to them Do you think this is human language? Others are worried about not being able to catch up with similar foreign products in terms of performance. Are you complaining that the advantages are not big enough? ?However, Jiang Fuhe had already achieved complete and complete self-reconciliation by this time, so after complaining a few words in his mind, the main thing he thought about was how to hold this thigh tighter... ?At the same time, he didnt forget to pick up Chang Haonans words: "I looked at the design information before. After all, the total pressure ratio of the turbofan 10 is still slightly higher than that of the AL31F, and there is not much correlation between the working status of the afterburner and the compressor. A fuel injection ignition device, everyone designs Its almost like you cant perform to your level, so its normal that you wont have as big an advantage as you did during the middle push. Of course, Chang Haonan also knows that with the current processing and manufacturing level in China, the reason why the turbofan 10 can achieve its current level has been compensated to a certain extent by excellent design. ?At this point, according to Haiyide, Factory 410 can only produce two units per month. ?The debts owed by late-industrial countries in the past, even if they are open and closed, will not be easily repaid. He has definitely overfulfilled his task. ?Of course, if you want to think about it, you definitely cant say it directly when expressing your stance: Not quite. ?Chang Haonan leaned his upper body on the chair and rubbed his cochlea with his hands. ?At this time, the engine speed has been reduced to the idle state again, and the high-frequency noise has also weakened by several orders of magnitude, but the tinnitus will still bother him for a while: In subsequent improvements, we still need to focus on the afterburner, as there are shortcomings ?This time Jiang Fuhe was used to it, or was numb. He didn''t even look back and continued to focus on the other parameters below. The national military standard weight written in the technical manual of this engine is 1560kg. After it was put on the bench, the actual measurement was 1575kg. If you calculate it like this..." He raised his head and did a little mental calculation: The thrust-to-weight ratio at sea level is indeed 9 Even though this matter has been confirmed with Chang Haonan a long time ago, the shock level of the latter''s words is still different from the actual calculation of a 9.0 result. Of course, when it comes to restoring the design parameters on paper, I am still a little confident. Whatever is said is what it is, and the error is basically around 5%. ??Chang Haonan was not overly modest this time. The total length of the engine is 4805mm, the maximum diameter is 1250mm, and the air inlet diameter is 915mm ? Jiang Fuhe took another look at the physical parameters of the Turbofan 10 at the bottom of the report, which had nothing to do with this test but were given as a technical background: I remember that AL31F is 5 meters long and has a diameter of about 1280mm So, the turbofan 10 can directly replace the AL31F in situ? This depends on the specific circumstances. ?After the whole person relaxed, Chang Haonan also felt a sense of drowsiness coming over him, but he still managed to answer Jiang Fuhes question: "For the J-11, the internal space of the fuselage is large enough. It is not a problem for the air inlet diameter to be 10mm larger. There is also enough redundancy to lay out the communication cables required for full digital control. Therefore, as long as the flight control allows access, both engines can Even if they can be replaced on the same plane, there wont be any big problem. If it is a medium-sized aircraft like the J-10, corresponding space needs to be left during manufacturing. Although the changes will not be major, once the aircraft comes off the production line, it will not be compatible with another engine model. So if the 410 factory has insufficient production capacity, it can only give priority to ensuring the supply of J-10 and let the J-11 side wait a little longer..." ? Unlike the previous generation J-10 which used AL31FN for a long time, the J-11B was replaced with the turbofan 10 in the second batch. ??The turbofan 10 on this timeline does not have an absurdly high number of failures and can fully support the reliability required for single-engine models. Furthermore, it was Chang Haonan who took the initiative and asked the 611 Research Institute to change the J-10 into a larger and heavier Category II design, so that the originally planned AL31FN could not meet the requirements. It would be too personal if the supply of domestically produced power could no longer be guaranteed and problems would arise in the delivery of aircraft... (End of this chapter) Chapter 633 Ultra-long-range air-to-air ammunition Chapter 633 Ultra-long-range air-to-air bombs Chang Haonan completed the afterburning test of the turbofan 10 and was preparing to go back to rest after sorting out the data. Haojing, Factory 112. ??A convoy of three inconspicuous jeeps drove in from the main entrance, then sped along the winding internal road, and finally stopped at the entrance of the 70# factory building ??Although Beiling Airport is located inside Factory 112, in theory, even small planes can land directly here, but because it is not a civil aviation airport, it is still quite troublesome to operate. ?Not everyone can casually get a special plane operated by the 34th Air Division in the name of civil aviation like Chang Haonan. A few seconds after the car stopped, eight people in suits of different styles got out of the car one after another. The leader, Guo Liqiang, wiped the sweat from his forehead and couldn''t help but "highly praise" the driving skills of these drivers. ??He didn''t even feel the same about flying on a plane or a boat, but he actually got motion sickness on this seemingly ordinary jeep... He held the car door and eased it slightly before his somewhat darkened vision returned to normal. Then, when he raised his head again, he saw several figures in work clothes walking out of the factory. The entire department, after the completion of Thunderbolt 11, did not even have a single project in hand! ?Especially in the same office building, the two brother departments of satellite and rocket are so busy every day that the comparison is even more obvious. Then...it''s faster, but people can''t bear it. Just a year ago, I was called Xiao Tiantian, and now I am Mrs. Niu... ?So Jun directly showed him what it means to like the new and dislike the old. So, after receiving the official letter from Factory 112 that contained elements of the Riddler, he quickly flew over from Shanghai. ?At the beginning of this year, he also thought about directly changing the Thunderbolt 11 to an active seeker and upgrading it. It turned out that they were all laying an ambush here. If I had known this, I wouldnt have said that reminder when I got in the car... ?So he straightened his somewhat messy suit and led his men up to meet him, while secretly regretting in his heart: Hence, except for the most basic air-to-air model, no one cares about other derivatives. ??But the Pili 12 over there in Luoyi seemed to be almost at the stage of test firing. ? About why his predecessor, Lao Deng, chose to retire early after the Thunderbolt 11 was finalized... When he just got on the line with the pick-up convoy from Taoxian Airport, he casually said, "Comrade, please hurry up, we are in a hurry." ?At that moment, Guo Liqiang suddenly realized ?In the following year and a half, Guo Liqiang also worked on some projects based on Thunderbolt 11 based on the ideas mentioned casually by Chang Haonan. But as a department leader, if he has no performance for a long time... ?However, before the chairs in the director''s office were warm, he, who was originally immersed in the joy of promotion and salary increase, discovered a huge problem - The ordinary engineers under my command dont care about this. Anyway, in a place like the research institute, if there is no project, the best is just fishing without unemployment. ?Happily speaking, this missile is just a domestically produced Italian version of the Sparrow, and its potential is there. ?After the design of the PL-11 missile was finalized, it happened to coincide with the early retirement of the director of the missile department of the Second Electromechanical Bureau, so Guo Liqiang took over this position naturally. Things are clearly not going to be easy. You are Guo Liqiang, Director Guo, right? Welcome. The visitor was naturally He Ming, who had sent an official letter to the Institute of Aerospace Technology at the suggestion of Chang Haonan. Ive seen things outside, Ive seen things outside. You should be the General Manager He who sent us the letter? ??Guo Liqiang quickly stepped forward and shook hands with the other party: Just call me Lao Guo, or Guo Gong. He Ming saw that Guo Liqiang was about the same age as himself. Although they were half a level apart, they were not in the same system at all, and there was no affiliation. In addition, he had a technical background and was not keen on official talk. Because of his temper, he changed his title: Well, Mr. Guo, let me take you in for a tour first, and then talk about the situation while watching? Thats good, thats good. ??Guo Liqiang has not fully recovered from the discomfort caused by motion sickness at this time, and it is indeed inconvenient to talk about business right away. By the way, He Gong. ??Guo Liqiang, who was undergoing safety inspection as usual, suddenly said: I would like to ask, our two units have not had much contact before. How did you suddenly think of us? In fact, this was what he was curious about on the plane to Shengjing. According to the contents of the official letter from the other party, this ultra-long-range air-to-air missile at the "missile" level is basically a direct acquisition of the technical data of the R33 for localization. They only need to be responsible for redesigning the guidance system. Just give the Pennant Design Bureau some money. Given the large amount of equipment and exports of Thunderbolt 11 in the past two years, he can still afford this amount of money. The biggest difficulty with long-range air-to-air missiles lies in the missile itself. In other words, it is a project with almost no risk. ? It is true that Shengfei Group only plays a matchmaking role in this process, and the real business has to be negotiated by the Aerospace Technology Research Institute and Pennant. But Guo Liqiang understands that whether doing business or projects, "access" or channels are the most important thing. Why did pie fall from the sky and fall on my own head? Oh... This was recommended to us by Mr. Chang. He said that your side has just finished the research and development of Thunderbolt 11, so the technical strength should be relatively abundant and there should be enough energy to take over new projects. ?He Ming''s answer highlights a high emotional intelligence. Technical power is relatively abundant can also be said in another way. Its called Its quite pitiful to see that you are starving to death without any business ??Guo Liqiang, whose family knew about his family affairs, immediately wiped the sweat from his forehead: We do have enough manpower at the moment "But this Mr. Chang...since he knows me, he should refer to...Comrade Chang Haonan of Torch Group?" Military industrial corporations of different systems are basically separated by mountains. Although Chang Haonan''s name is well-known in the entire Science and Technology Commission system, not many people outside the aviation industry and weapons industry know that he is a man in his twenties. Horrible Age serves as the chief engineer of two key projects. Relatively speaking, the identity of Torch Group is spread more widely. After all, TORCH Multiphysics software and Torch-C.B. Ferrari, two companies that can be said to have shaken the world of mechanical manufacturing, are relatively loud. "Yes, but Mr. Chang is currently engaged in a project and is not in Shengjing, so I am here to contact you." While speaking, He Ming had already led a group of people from the Tian Technology Research Institute to the interior of the 70# factory. Oh...this is F14... Even if Guo Liqiang is from the aerospace system, as a technician working on air-to-air missiles, it is impossible to know anything about aircraft. Not to mention the more famous models like F14: Do we really have such a thing? It was upgraded for foreign customers. Of course, we also got a few for testing... ??Guo Liqiang looked like he was suddenly enlightened. There are only two users of F14. Could it be that the US military came to Shengfei Group to upgrade its aircraft? So, its basically a well-known brand. In fact, the arms sales contract between China and Persia is not considered a secret. That is to say, Guo Liqiang usually does not pay attention to news in this area. Some senior military or aviation enthusiasts have even seen the F14 in test flight near Beiling Airport. . After specially leading a group of people behind him to circle around several planes, He Mingcai continued: The reason why we thought of doing this ultra-long-range air-to-air bomb project was actually influenced by this upgrade project. The customer said he wanted to integrate Russian-made long-range air-to-air bombs into the aircraft, so Pennant sent a group of technicians and several sample bombs to participate in the project. When we saw R33, we felt that this thing could be used for our own purposes... As he finished speaking, he took people to the small compartment where three R33 missiles were stored: "This is it." What the fuck? Is this an air-to-air missile? ?The three huge missiles in front of him were so shocking that Guo Liqiang subconsciously cursed. As a missile designer, of course he knew about the R33 model before he came. But knowing is different from intuitively feeling it. Even though he could memorize the size and basic specifications of the R33, he was still shocked when he saw this missile that was almost as big as two or three people for the first time. ?At this moment, many ideas that he had thought about in the past, but had no conditions to try, all poured into Guo Liqiangs mind at almost the same time... Done it! Such a voice echoed in his ears. (End of this chapter) Chapter 634 Why should your next missile be just a missile? Chapter 634 Your next missile, why should it be just a missile... ?Guo Liqiangs reaction was obviously not what He Ming next to him had expected. After all, the latter himself and Chang Haonan behaved similarly when they saw this thing for the first time. "How about it? Although there are many functions I told you in the official letter, it should be a lot more difficult to integrate them into such a big thing, right?" At this time, Guo Liqiang was still immersed in joy and excitement. In just a few words, he had already walked around the missile rack several times, looking here and there. ?Although air-to-air missiles are no better than airplanes, they dont actually contain much valuable information from their appearance. But it didn''t stop him from being simply happy. So much so that I couldnt even answer the question right away. ?He Ming looked at Guo Liqiang like a child who got a toy he was interested in, but he didn''t rush to urge him. ?He has experienced this situation before, a few years ago when he first learned that Su-27 technology was to be introduced and a production line established in China. Having said this, he took two steps forward again and patted the missile body near the nose cone: "The warhead of tactical missiles is basically at this position (rather than the head). Generally, because air targets are generally relatively fragile, anti-air missiles tend to use a large number of prefabricated fragments or ring-shaped continuous rods as warheads to optimize The damage area is not the damage capability, and the proportion of the charge to the total weight of the warhead is very low. The levels of the two must complement each other. "Although there is no way to take it apart to take a closer look at the internal structure, I speculate that the volume filling rate of its seeker and warhead is not very high, and there is enough space to accommodate more complex electronic equipment. The air-to-air anti-radiation missile mentioned in it. ?? Guo Liqiang, who was full of excitement and talking non-stop just now, his expression froze: "It''s just that for this kind of air-to-air missile with a range of 200 kilometers or more, the process from launch to hit may last 3 minutes or more. Even if there is a terminal active seeker, it must continue during the flight. Guidance correction, otherwise if the missile flies past with only inertial guidance, the target will have gone somewhere long ago. " ??If fighter planes are the fierce generals rushing into battle, then missiles are the weapons in the hands of the fierce generals. He Ming thought briefly and then replied: However, in order to achieve stable tracking...Im afraid the distance needs to be much closer. "I remember that the R33''s paper range is almost 300 kilometers. Of course, this is the ultimate data when the carrier aircraft and the target fly head-to-head. But even if it is discounted in actual combat, it has to be about 150 kilometers, and considering the launch The lock must be completed before then, so the tracking distance of the radar to the target cannot be less than 250 kilometers. " Men, who doesnt like big ones... Especially, in the aviation industry, before the Su-27, there were already several models of JH-7 and J-8 as a transition. ??Radar, especially mechanical scanning radar, does not increase the search distance without limit simply by increasing the power or the RCS of the target is large enough, but also involves the influence of many factors such as the antenna form and the radar back-end data processing level. He Gong, I just took a quick look at it and it does have a lot of potential. On the other hand, even if Xing Daorong is equipped with a flying halberd and a red rabbit, there is a high probability that he will be overthrown by Zhao Zilong''s shot. "only" Although the Aerospace Technology Research Institute has produced many models here, they are all small and small, such as the Hongqi 61 or the Thunderbolt 11, and even individual ammunition such as the Hongying 5. This launch condition... can our carrier aircraft achieve it now? Although logically speaking, size does not completely represent the level of technology, but if you really have a choice... After Guo Liqiang knocked around the missile for a while, he patted the oil stains and dust on his hands again and returned to He Ming: If we slightly adjust the shape of the warhead and accept a certain reduction in range, with this missile reaching a maximum speed of nearly 5 times the speed of sound, I dont even think there will be any problem in using it directly against the ground. ? Even a brave man like Lu Bu Dianwei would not be able to exert much combat effectiveness without someone taking advantage of him. In the end, he would be captured or outnumbered. During previous test flights, the 1493 radar had captured a target the size of a Boeing 737 240km away. For an engineer, especially an engineer who could only work in a shell in the past, it feels very transparent to have a platform with such huge potential in front of him for him to unleash. Concerning this point, Guo Liqiang knows more than He Ming: If this is the case, it would be best to have a native airborne phased array radar, like the MiG-31, to protect target data in the mid-range. However, this is completely confusing He Ming. ? MiG-31 is essentially a high-altitude and high-speed missile launcher unique to the Homeland Defense Force. It is a dumpling specially made for the R33 missile and the N007S radar. For China, even if we do not consider the technical aspects, just from the perspective of military construction route, we will not develop such a thing. So, he waved his hand and decided to give up on this issue for the time being: "Gong Guo, I''m just responsible for the production of aircraft. I don''t know much about the radar project, but at least, there should be no phased array radar that can be installed on fighter jets in a short time. Otherwise, we should have started long ago. Were working on a related verification machine. "I think that instead of thinking about so many things that neither of us can decide, we should first build missiles with sufficient performance and mount them on existing aircraft models for testing. As for radars... I think there will be some." Of course Guo Liqiang also understands this truth, but as a missile designer, if he cannot bring out the full performance of the weapon, he will always feel regretful that the magic weapon made by a famous craftsman will be buried. Thats all I can do for the time being. ?He sighed softly, and his brain, which had been a little red and warm just now, gradually returned to calmness: As far as the bomb itself is concerned, the main difficulty for us is the propellant. Even if we get a full set of technical information from Lao Maozi, it will take some time to organize the production. The remaining problems are not big. Whether its active radar, passive anti-radiation, radar guidance to the ground, or directly changing to TV guidance or laser guidance, as you just said, the space inside the radome is really too big, so its not difficult. In terms of target signal processing and control rate, long-range missiles and medium- and short-range missiles may be different, but our country is also considered the best in the world in this aspect, so it is not a problem..." ?Originally, Guo Liqiang just took stock and said that he would definitely not live up to He Ming''s kindness, which was a reassurance to the other party. But halfway through the inventory, the latter was surprised: Top in the world? ??Guo Liqiang was stunned for a moment when he was suddenly interrupted, then nodded: Yes, you dont know? He Ming looked confused: "Do not know what is this?" ??Guo Liqiang straightened his half-white hair: "Well...Mr. Chang, there is another researcher from the Institute of Computing of the Academy of Sciences, who is considered a pioneer in this field. Although he probably did not continue to work in this area after publishing an article, there are still domestic and foreign researchers Chinese researchers are very encouraged by them and have invested a lot of energy in this direction in the past two years, so... they are so ahead. He Ming took a deep breath. His profession is in mechanical manufacturing, and he has indeed never heard of these things. ?But then I thought about it, if it was Mr. Chang... ?It seems reasonable. So I accepted this setting. ?Seeing that the expression on He Ming''s face returned to normal, Guo Liqiang continued: Of course, our research capabilities are limited and it is impossible to open so many stalls at the same time, so we should focus on the basic model of the active and passive composite seeker first. "In addition, if you want to carry out anti-radiation missions, whether it is ground radar, early warning aircraft or other aircraft flying radars, missiles with passive anti-radiation capabilities alone will not be effective. It is best to cooperate with electronic warfare aircraft with relevant capabilities. I know that Haofei has used the JH-7 platform to develop an electronic warfare model before. When this missile is tested, it would be best for you to connect with He Gong and borrow one for testing. "no problem." He Ming nodded immediately: Moreover, if we wait a few more years, we may also have an electronic warfare model of the J-11 platform. Mr. Chang mentioned it before when he came to inspect our factory..." It shouldnt take a few years ??Guo Liqiang lowered his head and thought for a while: In short, we can discuss this later. Anyway, as long as there is a reliable electronic warfare platform, the basic functions of this missile can be guaranteed, but the effective range is limited by..." At this point, his voice stopped abruptly. He Ming turned his head curiously and saw Guo Liqiang staring at the three missiles in front of him, wondering what he was thinking. I suddenly had a bold idea After a long while, the latter spoke again: A missile as big as this can be more than just a missile "ah?" ?He Ming was a little confused by this sentence. This matter is a bit complicated to talk about. ??Guo Liqiang shook his head, turned around and looked at He Ming: I hope to meet Mr. Chang as soon as possible. I wonder if you can contact him? (End of this chapter) Chapter 635 Machine bomb bomb network collaborative passive positioning Chapter 635: Machine-bomb/bomb-bomb network collaborative passive positioning Facing this somewhat sudden request, He Ming did not give a direct answer: Yes, yes, but the project at hand by Mr. Chang is not directly related to us, so we need to report it to the higher ups. If its convenient, could you tell me why youre looking for him The question was only halfway through when Guo Liqiang answered directly: I just thought of a way to extend the effective attack range of this missile under the existing technical conditions, but it involves some problems at the system prediction algorithm level. I need to check with Mr. Chang for confirmation. When he said this, there was a sparkle in his eyes, and his tone of voice was much higher than when he was just chatting. ?He Ming was keenly aware of the changes in the other party. He knew that this was a sign of inspiration. For "ordinary" researchers like them, this is an opportunity that comes only a few times in a lifetime. ?Although the sudden flash of inspiration does not mean that you can directly come up with any results like a certain Mr. Chang who is not a human being, the relevant ideas formed in your mind are basically valuable. So, this situation must still be reported to Chang Haonan. ?Chang Haonan did not join the No. 11 Project, and he is not a member of the Taihang Project, so I really dont know where the former is at the moment. As for Mr. Guo, how about you settle down in our factory for a few days and take advantage of this time to sort out the ideas you just had and preferably improve them, so that the communication efficiency after meeting with Mr. Chang will be better? In fact, in most cases, meeting Chang Haonan does not require any particularly complicated procedures. Fortunately, although Guo Liqiang and Chang Haonan are not familiar with each other, or the entire aerospace science and technology system has not yet had any direct relationship with Chang Haonan, they are all units under the Science and Technology Commission system. So after Ding Gaoheng confirmed the situation with the Aerospace Science and Technology Group through the System Engineering Department in charge of the aerospace industry, he gave the instructions For more details, you have to report to the Science and Technology Commission for application. Whether it is the 624 Institute, the Turbofan 10 project, or the SB101 high-altitude platform facility, they are all top secret. The problem is that he is currently conducting high-altitude test on the turbofan 10 in 624 So, after thinking about it for a while, He Ming came up with a safer way: "In this case, I will contact my superiors immediately and ask where Mr. Chang is currently and when can I meet him soon." In short, he is neither in Shengjing nor in the capital. For Guo Liqiang, this was basically the best plan he could think of, so he nodded decisively: ?He Mings application was quickly passed to the Commission of Science, Technology and Industry for National Defense. After finishing speaking, he turned back and looked at a young colleague who came with him: "Xiao Fang, please go to the department''s internal hotline later, contact the hospital, and tell me that it has been confirmed here. Please ask the leaders of the hospital to organize a group of people with experience in foreign liaison as soon as possible to prepare for negotiations with the Pennant Design Bureau. "yes!" No problem, then why bother? There is no guarantee that some new results will be achieved. But what He Ming just said was not entirely an excuse. ?Just make an appointment with Torch Group. As for the formal project feasibility report and proposal application, I will make up for it in a few days. The attendant named Xiao Fang answered simply and neatly. Comrade Chang Haonan is carrying out research and development testing tasks for major projects and cannot leave in a short time. Considering that the actual situation requires it, Comrade Guo Liqiang is approved to go to Fucheng 624 Institute, but the itinerary needs to comply with the arrangements of the other agency. Three days later, Guo Liqiang flew from Shengjing to Rongcheng with this instruction, the letter of introduction issued by Factory 112, and the relevant information he had summarized in the past few days. As usual, a dedicated person from the 624 Station will be dispatched to pick you up at the airport. Of course, Chang Haonan had already received news from Ding Gaoheng and knew that Guo Liqiang, whom he had only met once, wanted to discuss something with him. So a day of less important content was specially arranged on the test schedule. ?When the tired Guo Liqiang was brought to a conference room in the 624th Institution Building, Chang Haonan was already waiting here. Mr. Chang, Ive kept you waiting for a long time. The moment he saw the latter, Guo Liqiang finally breathed a sigh of relief. Director Guo flew to Fucheng specifically to find me. He must have something very important. It doesnt hurt to wait for a while. Chang Haonan stood up and shook hands with the other party. In the previous phone call, Ding Gaoheng did not give too many details. ?Of course he could guess that the purpose of Guo Liqiang''s trip must be related to the ultra-long-range air-to-air bomb based on R33. But I really cant think of anything in it that deserves an interview with myself. After getting closer, Chang Haonan noticed that Guo Liqiang''s face was a little pale: Do you need to have breakfast first? No, Ive already eaten on the plane, its more important to talk about business. ??Guo Liqiang waved his hand and put the briefcase he was carrying on the table: Also, Mr. Chang can just call him Guo Gong. Speaking of which, my position as director is borrowed from your light. If I hadnt been inspired by that paper, Pili 11 would not have been finalized so quickly. While exchanging pleasantries, he did not stop moving his hands and had already taken out several bound books from his bag. The two of them found a seat at the edge of the conference table and sat down. Mr. Chang, I actually flew here directly from Shengjing. Vice President He Minghe from Factory 112 said that it was you who recommended him to give me the project of introducing domestically produced and improved ultra-long-range air-to-air bombs. Chang Haonan nodded: Yes, because Ive calculated that after you finish PILI11, you shouldnt have much of a burden, and youll just be able to take on the next step. So when I came here this time, I came up with a completely new idea. As he spoke, Guo Liqiang pushed a few piles of information in front of Chang Haonan: Generally speaking, anti-radiation missiles with passive radar guidance function, whether the target is in the air or on the ground, need to be cooperated with a dedicated electronic warfare aircraft to maximize their combat effectiveness. "But the range of the R33 bomb is a bit too far. Before reaching the end, the search range of our country''s existing fighter jet airborne radars is not enough, making it difficult to provide complete mid-course guidance, and passive radar guidance is very accurate at medium and long distances. Even if it is not good, there is no way for the missile to accurately find the target based on electromagnetic wave tracing alone. "As a result, the missile will either not be able to take full advantage of its ultra-long range and be forced to fight in the advantageous range of the medium-range missile, or it will easily break off in the middle after being forced out, unable to cause any damage to the enemy aircraft. Effective threat." "So I thought about whether we could use the large enough size of the R33 platform to not simply treat it as a missile, but as part of the entire search system, networked by the passive detection radar of electronic warfare aircraft and airborne long-range missiles. , positioning ultra-long-distance or low-detectability targets? At the beginning, Chang Haonan still listened to Guo Liqiangs ideas with a relaxed and slightly curious attitude. However, when he heard the last one, which was to let missiles and aircraft cooperate in coordinated searches, his expression instantly became serious and his brain began to work rapidly. There is no doubt that Guo Liqiangs idea is definitely many years ahead of this era. Using multiple aircraft to coordinate, and using random agile multi-platform mutual guidance signals through a data link network to stagger the positioning of enemy radar systems, this was an idea in the 2010s, and no more than three countries have conducted relevant research. ?At the end of the 1990s, data link networks were considered alien technology and were not something to be thought about in the short term. Leave it alone China, not even the United States has a multi-directional high-capacity data link that can meet this requirement. But the requirements can be completely reduced. Instead of random agility to multiple platforms, the missiles can be coordinated with fixed models or even fixed codes, or between missiles and carrier aircraft. In this way, only a non-universal one-way data transmission system is needed, and the difficulty is directly reduced by several dimensions. ? By analogy, the former is equivalent to a true A-shooter and B-guider, such as using an F35 to guide a Standard 6, or a Su-35 to guide a 48N6 to hit over-the-horizon targets. The key point is that neither A nor B needs to be specified in advance. As long as two gadgets that meet the requirements are fished out from the war zone, they can coordinate smoothly. It is a ruthless task that has only been tested in a few tests under ideal conditions until the 2020s. But the latter is similar to the time when the Red Navy used relay helicopters to guide long-range anti-ship missiles to attack aircraft carriers. Although it sounds like A firing B missiles, A and B here are both predetermined. Changing one of them will Its not working anymore. So it was a mature technology even in the 1970s. ??Although tactical flexibility is a complete mess, it is better than nothing. You must know that the J-Handian 7 he designed previously has relatively complete passive detection capabilities. ??If two more missiles with networking capabilities are mounted, it will be equivalent to adding two more weaker aircraft of the same model in this airspace, which can greatly enhance the accuracy of capturing targets. ??More importantly, the missile is extremely fast and almost impossible to intercept, and it will continue to shorten the distance to the target as time goes by. ?Of course, there is a cost. Such a missile is designed almost according to aircraft standards, and the cost must be quite staggering. Furthermore, the flight window of the missile is relatively short, no more than 5 minutes at most. After capturing the target, it is likely that there will be no time to turn around and launch an attack, and a follow-up attack is required. In other words, at least 3-4 missiles must be fired in one attack. But it is really impossible for the JHD-7 to carry more ammunition. ??If you really want to realize the potential of this combat mode, you can either change to a flying platform with more hardpoints and a larger bomb load, such as the J-11. Either put the entire system directly on the ground and use it as an anti-aircraft weapon... For Guo Liqiang, Chang Haonan''s long silence was as torturous as waiting for trial. But he didnt dare to interrupt the other persons thinking casually. Finally, after a long ten minutes, Chang Haonan finally raised his head and looked at Guo Liqiang who looked anxious again: Your idea...should be feasible! (End of this chapter) Chapter 636 A relatively complex algorithm Chapter 636 A relatively complex algorithm ??The moment he heard Chang Haonan''s affirmative answer, Guo Liqiang''s originally tense expression suddenly relaxed, and he obviously relaxed a lot. After all, this project is definitely a big job. If it can be implemented, it will be tantamount to a shower of wealth on the head of the missile department of their Aerospace Technology Research Institute. It is estimated that he will no longer have to worry about project issues until he retires. But Mr. Chang, this is just an idea at the moment. I did some preliminary research on the implementation level a few days ago while waiting for a reply from the Science and Technology Commission, but... the time was too short and there was no substantial progress. ?When he said this, he realized that he had already broken out in a layer of sweat after just ten minutes of waiting for the results. ? It is true that there is still a bit of an "autumn tiger" atmosphere in Sichuan Province in early September, but this room is located in the shade and has good ventilation, so it is obviously not completely hot. ?Chang Haonan nodded slightly, then pulled the documents that had just been pushed in front of him again and started to read them carefully. As Guo Liqiang just said, he really didnt write much about the positioning and missile control algorithms. After all, these two parts have already involved the theoretical field, and it is impossible for ordinary people to get any results just by thinking about it. However, he still made some useful designs for the use of this multi-source network detection system. For example, the two "detection bombs" fired by the aircraft carrier platform should choose the ballistics as different as possible. Together with the carrier aircraft itself, they should approach the general location of the target from multiple angles to capture effective signal data with the largest possible length to achieve Precise detection of targets across the entire range. ??Only found that the next page was blank. Chang Haonan had almost the same emotion as Professor Roger Elinor: How come its gone here? I just briefly reviewed the working logic of the entire machine-munition network detection system. However, just when he was about to see what was going to happen next... So I cant help but feel a little excited, especially when turning pages, my movements are much bigger. After calming down a little, Chang Haonan took out a pen from the pen holder: After all, if the rest of the content can be filled in, there is no need for the other party to come all the way to find him. For a research, raising questions is at least as important as solving them. For Chang Haonan, reading a good technical document feels no less like reading a masterpiece handed down from ancient times to those literary geeks in ancient times. ?However, this also means that the straight, high-throwing and diving trajectory of traditional air-to-air missiles is no longer applicable. Some ballistic characteristics of ground-attack missiles need to be referenced to meet tactical requirements. Chang Haonan''s eyes flew across the text on the page while secretly affirming the content in his heart. "Not bad" Obviously, this report is a mess. ??He and the other party were only acquaintances before, but he didn''t expect that he actually had some ink... ?In just a few days, Guo Liqiang has grasped two key issues. It is already quite good for Guo Liqiang to have written to this point. In addition, even with a directional data transmission system, this aircraft and two bombs are still three independent individuals, and they are still in rapid relative motion. How to capture the radar signals captured by each other, which may not be continuous? "Combining" or "splicing" together is also a big problem... ?But in the end, I still held back. ??Guo Liqiang has never worked seriously with Chang Haonan in the past, but he could also see that this was the boss''s gesture of preparing to exert force, so he immediately moved the stool under his **** slightly closer. First of all, the airborne passive detection system is used to conduct early warning detection and rough positioning of enemy ultra-long-distance targets or low-detectability targets, and provide initial information for the aircraft to launch missiles. Chang Haonan''s painting skills have improved a lot in the past two years, but they are still at the level of simple drawings plus. He simply drew a frame instead: ?????"Then, use a carrier aircraft and more than two active and passive composite guided air-to-air missiles to form a joint network. For high-precision passive detection, I think it is necessary to use time-lag positioning technology and filtering algorithms to obtain the precise position information of the target and provide mid-course guidance information for long-range air-to-air missiles. "Eh?" ?Guo Liqiangs expression paused: Time difference positioning method? The reason why he was so shocked was not because of how new the algorithm was. On the contrary, its because its too stale. The so-called Time Difference Positioning (TDOA) is to use the arrival time difference of electromagnetic radiation signals received at multiple points to determine the orientation and distance of the radiation source. In fact, on the JH-7, passive positioning uses this set of logic. Its just that the multiple points above are the two pods on the left and right, which are very close to each other, so the error is very large. ??Now the multi-point is an aircraft and two missiles, with a distance of tens or hundreds of kilometers, so the positioning accuracy will naturally increase. ?So this idea is too direct, and it even makes Guo Liqiang feel that Chang Haonan should not have come up with it. Yes, time difference positioning method. Chang Haonan next to him was a little confused by his reaction. He was stunned for a moment before nodding: This should be the most appropriate algorithm, Guo Gong I must have heard of it At the end of the sentence, there was even an uncertain questioning tone. Obviously, there is still half a sentence left to ask ??What is it about this that should surprise you? ??Guo Liqiang also realized that his reaction was a bit excessive, and immediately explained: Wellits about control after all. Of course Ive heard of TDOA, but I always felt that Mr. Chang would come up with a more clever algorithm Chang Haonan couldn''t help but laugh when he heard the other party''s thoughts: "Algorithms are just a mathematical tool. It doesn''t matter whether it''s high or low, as long as it''s easy to use. If you just create a new algorithm with a higher complexity in unnecessary places just to show off your skills, it will complicate simple problems. It is not in line with the principles of our technical staff. "makes sense" ??Guo Liqiang nodded, obviously agreeing with Chang Haonan''s statement. ??The upper body that had just leaned forward also leaned back on the back of the chair. Even intentionally or unintentionally, I ignored the details that Chang Haonan called this problem a "simple problem"... ?However, just as he was relieved, Chang Haonan changed the topic again: However, although the principle of multi-station time-difference passive positioning itself is very simple, when it comes to our problem, it still requires some skills to use three positioning stations in relative motion to accurately solve the position of the target radiation source. "In the past, on electronic warfare aircraft, because the two pods were always relatively stationary, and there was a data bus connection between the pod and the aircraft, a special computer could be used to perform calculations, so the traditional Newtonian method was used directly. Iterative methods can also be solved. "But the current machine-munition network detection requires a lot of calculations, and the data transmission rate between each other is also slow. We definitely can''t use the old method. Otherwise, by the time the target position is calculated, the missile will reach its maximum range. Already ??Guo Liqiangs upper body, which he had just leaned back, sat upright again: That Chang always means Multi-station time difference positioning is essentially about solving a set of strongly nonlinear partial differential equations. ?Chang Haonan slightly adjusted his sitting posture: So here, it is necessary to develop a relatively complex algorithm... (End of this chapter) Chapter 637 Thunderbolt 13, ready for project approval Chapter 637 Thunderbolt 13, preparing for project establishment ?At that moment, Guo Liqiangs expression was quite wonderful. Lets just say, I always felt something was wrong before, but I never quite figured it out. ?Now I finally know whats wrong In the exchange just now, he could actually understand everything Chang Haonan said. If this is the case, wouldnt his trip have been in vain? In the end, those who didnt understand were left waiting... ?There is nothing to worry about now. Mr. Chang...please tell me more specifically? ??Guo Liqiang''s tone was much more relaxed than before. ?But Chang Haonan did not answer immediately. Instead, he lowered his head and frowned, looking at the white paper in front of him and thinking. ?This explanation obviously cannot completely eliminate the impact of the sentence just now on Guo Liqiang''s worldview. ?) Its not easy to disturb him with words. Although the software itself has been on trial for about a year and it is estimated that the official version will be released in a while, he has not stopped researching in this direction. ? He ??has not participated in the development of TORC Multiphysics software, and he does not know that Chang Haonan even came up with four solutions to a problem in a shorter period of time when he participated in the design of the die forging press. After a few minutes of brainstorming, Chang Haonan felt a sense of dizziness for the first time. Chang Haonan felt something was wrong in the atmosphere behind him, so he turned his head and saw Guo Liqiang with a face full of astonishment. As for the nonlinear equations generated by multi-station time difference positioning, I can only think of three possible numerical solutions at present. So in his opinion, Chang Haonan saw the question he raised, chatted with himself, lowered his head and thought about it, and came up with three solutions. ?It seems that it is a bit too whimsical to skip supercomputing and use the human brain to simulate numerical calculation results. This is also a person? When I was working on a project before, I studied similar problems, and I just deduced the conclusion a little bit. In Guo Liqiangs opinion, this should be thinking. He was used to this kind of expression. So he immediately opened his mouth and said: But Guo Liqiang obviously doesnt know this. However, this is Chang Haonan after all, so... ?However, at least the latter''s expression is no longer as abstract as it was at the beginning. ?So he raised his head, raised his hand to rub his forehead, and looked at Guo Liqiang again: ?At that moment, how to describe Guo Liqiangs expression? . ? gif In fact, when Chang Haonan developed the TORCMultiphysics software, he systematically studied the solutions to high-order nonlinear partial differential equations. ??If this state were placed on ordinary people, it would look like they were in a daze. Upon seeing this, Chang Haonan did not waste time and continued what he had just said: In short, I cant explain these three algorithms to you clearly with pen and paper, and more importantly, I cant tell you which one is better. So its better to do this. After you go back, first deal with the optimization control problem during the flight of the missile. The ballistic trajectory of our model is special and the range is too far. It is difficult to meet the requirements only by traditional trajectory turning control rate. The topic finally returned to an area that Guo Liqiang is familiar with: Are you saying that this missile cannot simply follow a high-throwing and diving trajectory during flight, so the missile wings need to provide a greater proportion of lift than ordinary air-to-air missiles in order to maintain the range and trajectory height? Chang Haonan turned the report in his hand to a previous page and pointed to the combat principle diagram drawn by Guo Liqiang: "Not only that, for the first two detection bombs fired, the trajectory needs to be continuously adjusted in the middle. It is best to shoot a horizontal arc similar to a bracket." Also considering that the targets we are currently expected to deal with are large targets with little maneuverability (the only stealth aircraft currently available are F117 and B2), there is no need for the missile to have a very large overload at the end. Therefore, in the process of controlling the missile, it is best to tilt the lifting surface to the target direction, and during the tilting process, the sideslip angle of the yaw channel should be as zero as possible, so that the resistance is minimal. Excluding some of the currently immature tricks, the rocket engines of air-to-air missiles are basically of the type that are very powerful but of short duration. After the initial acceleration phase is over, the only thing left is to rely on gliding. . After all, the R33 bomb is large enough and has enough fuel. It relies on slow-burning propellant and relatively low top speed to make it stronger than those thin and short medium-range bombs, but it is still the same in essence. So especially in the middle and later stages of the ballistic trajectory, every ounce of energy is very precious and should be wasted as much as possible. After a short pause, he continued to explain: "Although trajectory turning control can generally meet this demand, firstly, the response speed is a bit slow, and secondly, when the target line of sight rotation angular velocity is very small, the corresponding acceleration command is also very small, and the noise influence in the guidance signal makes it difficult for the missile to move The acceleration vector accurately turns to the optimal orientation, causing the projectile to roll frequently and rapidly, not only wasting control energy, but also affecting the detection accuracy. " "As for the anti-personnel bombs that are actually used to attack the target after follow-up firing, the rapid rolling of the missile in the final guidance stage will cause coupling between the seeker and the missile body, and in severe cases may even lead to complete loss of control. " After listening to this paragraph, Guo Liqiang did not immediately continue what he was talking about. Instead, he let out a weak but meaningful sigh. ?Although he couldn''t keep up with Chang Haonan''s thinking in some places, he was still an expert in the field of guidance and control after all, so he could still understand the issues the latter just mentioned. ?However, being able to understand it makes people more concretely aware of how outrageous the person in front of them is - The few issues Chang Haonan just mentioned are too detailed.?????but very important. For the average project leader, it is almost impossible to think of these things at the very beginning. Let alone just starting, even in the test firing stage, if the conditions are not extreme enough, you may not even be able to find it. So, it must not be discovered until the end of the test launch. Wait until the specific cause of the problem is analyzed, then think of solutions, and finally go through a new round of test firing process, which can take as short as a few months, or as long as one or two years. ?This is not yet a solution. If you think wrong, you have to repeat it again. When we arrived at Chang Haonan, it only took half a morning to save the above procedures. The time and money saved can be said to be immeasurable... ?While sighing in his heart, Guo Liqiang was not completely stunned, but quickly thought of an idea: Can we consider changing the calculation coordinate system of the aircraft and missiles from self-centered to a unified Haojing 80 or WGS84 coordinate system? Those problems just now are largely due to the fact that the entire networking system uses itself as the origin of the coordinate system. In this case, if the missile rolls at high speed, it is equivalent to the coordinate system itself changing at a high speed, and it changes separately. For the target The calculation of position and own flight status is naturally prone to problems. If the coordinate system is changed to a unified coordinate system, the problem can be alleviated a lot. ?This time, Chang Haonan hesitated. Technically speaking, Guo Liqiangs idea is feasible. ?The only problem is that China does not have almost the entire worlds geographical information data like the United States and the Soviet Union (Russia). Even some of the marginal data of our own are not complete. If you do this, your combat efficiency will be greatly reduced once you leave the country. ?Of course, in terms of the current combat needs of the Air Force, it is sufficient. However, it is already September 1998. ?If nothing else happens, the powder keg of the Balkan Peninsula is about to explode. Chang Haonan is naturally planning to let this system go abroad for a "trial trial". But this kind of thing must not be discussed openly with Guo Liqiang. So, he needs to organize his language and persuade the other party from another angle. Using a unified coordinate system requires both missiles and aircraft to sense their precise location in real time, which our country is not currently able to do. Chang Haonan shook his head: I have a better way, which is to directly introduce the side-slip turning mode based on the tilt-turn mode, and perform compound control when the missile is about to slide. Lets take a look... The calculation formula for bank turn-side slip turn command conversion is n=n+(1-)n The discussion between the two continued until the afternoon of that day. Even lunch was specially delivered by Li Rongzai. Well, Mr. Guo, this project has been decided for the time being. ?Chang Haonan and Guo Liqiang organized the pile of information on the table and put it into their briefcases, and then came to the door together: "I will contact Director Ding and let you start this project in the name of Thunderbolt 13. After you go back, you will study the composite control first. When I am finished, your Aerospace Technology Research Institute will send it to Torch Group. This tender document solves the problem of multi-station time difference positioning. "no problem." The latter nodded and held Chang Haonan''s hand excitedly with both hands: I have to worry a lot about the establishment of the project, Mr. Chang. Its nothing, its just a matter of effort. Chang Haonan waved his hand: In addition, although it is nominally named Perak 13, I ask you to be prepared. He used a rather rare strong tone: This collaborative networked passive positioning system can not only be used on aircraft. Therefore, while receiving R33 technical data to develop air-to-air missiles, we must also work **** surface-to-air or ship-to-air missiles. "As for the land-based or sea-based passive positioning radar, I will contact the 14th Institute of Electrical Engineering. When I was working on the JH-7, I found that the hardware conditions there were complete. I would like to slightly change the software and Just a few key parts..." ??Guo Liqiang didn''t expect that he would be surprised by Chang Haonan even before he left. ??Whether its the director of the Science and Technology Commission or the 14th Institute of Electrical Engineering, if anyone says to contact me, just contact me. ?This ability to mobilize resources is simply unimaginable... (End of this chapter) Chapter 638 electronic reconnaissance Chapter 638 Electronic Reconnaissance ?Later in the day. ?Across the Pacific, Arlington County, Virginia. ? ?Defense Secretary William Cohen, who has become a veteran at work in the past two years, came to the office and began to routinely review the official business that needed to be handled that day, and then asked his secretary to arrange the schedule. Thanks to the series of scandals caused by the Donkey Party president in the past two years, although he is still the only Elephant Party member among the major ministers, his living environment has improved significantly. Even gradually began to compete for dominance in national defense affairs. ?Of course, at the end of the 1990s, the United States, which had just won the Cold War, was at its peak. When the cake is big enough, the differences between the two parties are not big enough to break up. For Cohen, compared to when he was almost alone when he first took office, he has basically completed the replacement of important people around him, and is able to handle various tasks in the department with ease without having to do everything personally. The pressure has naturally been reduced. Go down. Even his complexion is much rosier than before. A Chinese delegation is coming to visit next week, which will last for 9 days, including a visit to the Army Replacement School at Fort Benning. They need to be prepared to attend and hold talks She does not take a stand between the donkey and the elephant. Of course, it can also be said that her position is flexible and she is always on the winning side. In today''s general context, it is natural to help Cohen. Is there something new happening in the Gulf area? Good morning, Mr. Minister. ?His new secretarys voice sounded on the receiver: Mr. Minister, Ms. Henrion is outside. Although some quarrels with several other people were inevitable, there was no disagreement between the Donkey and Elephant parties regarding the matter of launching a large-scale air raid in West Asia. Looks like today is another relatively easy day. ?Cohen hummed a tune happily. ?However, at this moment, the intercom phone next to him suddenly rang. After obtaining the support of the Defense Intelligence Agency, he can see a lot of useful information earlier than the White House and the Joint Chiefs of Staff, and make effective responses in advance. Good morning, madam. The latter said hello while pouring another glass of sparkling water and placing it in front of Henrion. At the same time, he saw the document in the other person''s hand: I will discuss the specific details of Operation Desert Fox with the Joint Chiefs of Staff and the Presidents National Security Advisor this afternoon Henrion held a stack of documents in his hands and sat directly on the chair opposite Cohen after entering the door. The first and third tasks will have his secretary prepare all the details for him, and he only needs to read the memo. Only the second task requires him to go to the White House in the afternoon. There will also be a press conference on the recent situation in the Gulf region in the evening Therese Henrion, Director of the Defense Intelligence Agency (DIA). Considering the contents of this afternoons defense meeting, Cohen asked logically. Unfortunately, the bay direction is very calm. Ask her to come in. ?He poured himself a glass of sparkling water, then sat back behind his desk to prepare for processing several documents on the table that needed to be corrected. Henrion shook his head, then put the information on the desk and pushed it forward in front of Cohen: Its news from the South China Sea. I think you might be interested. South China Sea ??Cohen said as he opened the folder, but the contents were obviously not something that could be read in a few minutes. In the past, he had never quite understood why intelligence documents had to be written in such a long and unfocused way. ?Later I realized that this was Henrions core competitiveness that allowed him to have both sides for a long time It is impossible for political officials to have time to read the content word for word. Even if they read it, they would deliberately add complicated professional terms, so that outsiders can only have a partial understanding of it at best. So the conclusions largely depend on how she reports it. Cohen once tried to find some key points on his own, but even after working as a defense chief for two years, he was still confused by "the bigger the fish, the bigger the thorns, the bigger the thorns, the less meat, the less meat, the smaller the fish." , so the bigger the fish, the smaller the fish." This magical logic is confusing. He can only be glad that the other party is at least on his side for now: So...is it related to China? "Actually, the news came from Annan. As for whether it has anything to do with China...it''s hard to say." ?Henriang picked up the cup and took a sip to soak in the water: Our intelligence officers there reported that an Annan frigate encountered a mysterious wandering incident last week. When the ships GPS system was turned on throughout the entire journey, there was huge confusion in the satellite positioning data and magnetic compass pointing. There happened to be a group of media personnel on board the ship at the time, and reports from reporters and the captain tended to suggest that this was a supernatural phenomenon similar to the Bermuda Triangle. At this point, she didn''t even stop herself and let out a chuckle. The defense minister opposite also couldn''t help laughing. The legendary Bermuda Triangle is right next to Miami. With their status, they know that almost all the legends are just fabricated by the media. So, does Hanoi also believe this rhetoric? Cohens tone was a little contemptuous. ?But Henrion shook his head: Of course not, this kind of rhetoric is just to deceive ordinary people. They tend to have some kind of interference with the GPS system, which caused the navigation route to deviate. This is also consistent with the conclusion speculated by our intelligence personnel. ??Cohen wanted to refute, but was blocked by the other party before he could speak: "Because at about the same time when the problem appeared in that report, we had a Helena nuclear submarine in the nearby waters. It happened to make position corrections at the periscope depth and found some similar anomalies. Of course, they were far less exaggerated than what the Annan people reported. Cohen, who had been smiling just now, had a frozen expression on his face: "How can it be?" "The Navy told me before that although the GPS terminals we provided to Annan only have rough acquisition rights, they are all equipped with directional antennas. Unless the Russians use their satellites to send the same signal... But their satellites should also It no longer covers the equator..." ?The preset frequency band of the GLONASS system is almost exactly the same as that of GPS, so in theory it has the ability to disguise itself as the latter. But the Russians clearly have no motive to do so at present. Because of the existence of directional antennas, only signals from the upper cone area will be received, so they will not be affected by interference from other angles at all... What the Navy said is not wrong, Mr. Minister. Henrion shrugged: Actually, there may be many reasons for interference, but based on our past experience, positioning errors caused by purely environmental factors will not be as large as this. So the intelligence services still think someone is up to something? The Minister of Defense felt that the other party''s statement was somewhat similar to those intelligence documents, going around and around, but not giving a definite conclusion. Hand out a non-stick pan. Sure enough, Henrion immediately shook his head: This is the speculation of intelligence personnel and cannot be regarded as our official conclusion. So, this is why I came to you today. ?Cohen did not reply, but gestured for her to continue. I hope you can apply to mobilize a few electronic reconnaissance aircraft to check the situation nearby. ifier This straightforward request made Cohen take a breath immediately. ?According to paper regulations, the Minister of Defense is a civilian official who is in charge of administrative affairs. In principle, he does not have the power to command and mobilize the military. ?But we all know that the so-called "can''t in principle" actually means it can. So Cohen must have an idea. But he also had his own concerns, so he did not immediately give a positive answer: "Sending a plane over...the risk is too high..." Operation Desert Storm is coming soon, the Balkans are not clean, and there will be a Chinese delegation coming to visit next week. At this juncture... it is not suitable to do such a thing..." ?Cohen was born in a think tank. Although the main purpose was to make money, the think tanks of the 1970s and 1980s were somewhat genuine. So he knows very well that it is best not to make too many enemies at the same time. ?Henrion, however, was rather disapproving: Mr. Minister, you are a little too cautious. ?She smiled and shook her head and said: Didnt we prove that they were just bluffing at the beginning of the year before last? In just two years, nothing can change. And last month at the development conference, didnt you also say that we could win two wars in two different locations around the world? Thats what I am... ?Cohen almost blurted out that it was just to fool outsiders, how could you really believe it? ?But after a second thought, he realized that the other party was deliberately blocking his mouth. If you think deeply... ?Then the real purpose of sending an electronic reconnaissance plane there may not be just to investigate the cause of interference to the GPS signal. ??But thinking about it, due to Henrion''s relatively special status, it was not easy for him to refuse the other party directly. Otherwise, it is difficult to guarantee whether useful information will be obtained in advance in the future. But if we really want to mobilize a large number of troops at this juncture, that''s not the case. After some struggle, he decided to find a moderate solution: We have an Air Force Intelligence Squadron in Misawa, with a strength of 2,000 people, equipped with two EP3E Aries. Although we cannot guarantee 24-hour rotation, it should be able to meet your needs. (End of this chapter) Chapter 639 The threat of China’s domestic Su-27 Chapter 639: The Threat of Chinas Domestic Su-27 ? Therese Henrion had never expected to get an ultra-long-endurance strategic reconnaissance aircraft like the RC135. This time she came here for the EP3E and P3C at Misawa Base. However, although she has never read "Emperor Fan" in her life, she also understands that if you take the method from the top, you can only get it from the middle; if you take the method from the middle, you will inevitably get it from the bottom. ??If the lion doesn''t open his mouth at the beginning, it will be difficult to pull him back later. But now that she got the desired result in just two sentences, she couldn''t help but feel that it was a bit too simple. So I was going to try to see if I could push my nose on my face: The Misawa base is too far away from the target sea area. If there are only two EP3Es, they can only cover about 5-6 hours of reconnaissance every day, which will definitely not meet the requirements. I know that the Persefind survey ship should have completed its preparations now, can you... Before he finished speaking, William Cohens originally calm expression suddenly became sharp, directly interrupting Henrions words: The White House has special arrangements for the Persephone, and we cant just transfer it to you. "If we strictly follow the regulations, I can''t even transfer the intelligence unit of Misawa Base to you so easily. It''s all because of the past relationship between us..." ??Cohen is now considered a veteran in the workplace. However, the specifics of this matter are more complicated It was almost lost under the eyes of others. This is also the most important factor that enabled him to gain complete control of the department in a short period of time without any foundation before taking office. Anyway, I have done this kind of thing a lot in the past. ?Of course, if things only happen here, it doesnt matter. At worst, you can make an account at the end of the year and say that you lost it. Absolutely do not allow other departments the opportunity to intervene. ?Since she already knows about this kind of thing, sooner or later the CIA and other peer departments will also know about it. Originally, UUVs have a very high loss rate under normal use. If they are lost in the vast ocean, they will be lost. They are all underwater anyway. If you really want to find them, it is like looking for a needle in a haystack in the physical sense. Meaningless. The result was obviously a failure. ?These people themselves will also have relevant interest demands. When the fundamental contradiction is not touched upon, Cohen will usually cooperate by turning a blind eye. ?As a civil servant with a think tank background, it is impossible for him to be proficient in all matters related to the military, intelligence, finance and other national defense systems, so it is inevitable to rely on people who know the industry to do things. ??At this juncture, if you say that your department has lost a UUV, you will inevitably be caught and suppressed. In fact, as the head of the Defense Intelligence Agency, if she just wanted a few reconnaissance aircraft to cooperate, she could apply through the normal administrative process, and there was no need to risk her personal relationship with Cohen. A few months ago, a Maritime Self-Defense Force submarine lost an unmanned underwater vehicle that originally belonged to the U.S. Navy in an accident. ?Seeing that the defense minister''s attitude suddenly became tougher, Henrion also knew that there was little room for change in this matter. But before the end of the year, there was news that the GPS system may be interfered with... Its just that this time the situation is special. ??Lending UUVs to China is a private operation. The original intention is that the intelligence agency hopes to cooperate with Japan and get rid of its dependence on the White House and Congress to a certain extent. But sometimes, even if it is an alliance, it is impossible to allow the other party to make further progress. ??Moreover, the bait mode started before throwing it away, sailing in a straight line at high speed in extremely shallow waters. So, she had to take the initiative in the investigation no matter what. The efficiency of the normal process is too low. It is definitely better to go directly to Cohen for private transactions. As for the conclusion, it is not important. ?Let''s check it out in a year or two, wait until the limelight of this matter has passed, and then just come up with some excuse that it was affected by the harsh climate environment or changes in the geomagnetic field. So, thinking that the main purpose of the trip had been achieved anyway, she did not continue to pester her, but changed the subject: By the way, Minister Cohen, I remember you just said that a Chinese delegation is coming to visit next week? Since it is a transaction, when she gets something from the other party, she always has to pay something. Yes, the level is very high, and it will take more than a week. ?Cohen nodded slightly helplessly: But there shouldnt be any content that involves practical significance. After all, we only had tit-for-tat the year before last. This time...its nothing more than talking nonsense about friendship and mutual trust..." After a little bit of complaining, he quickly realized that the other party would not talk about this topic to him for no reason: Or do you have any news about this delegation? Henrion mentioned this just to set the stage, and immediately denied it: Thats not true. "However, there is some news involving China, but because there is currently a lack of cross-information verification, a systematic report has not yet been formed." Hearing this, Cohen''s eyes lit up. For a senior intelligence chief like Henrion, in order to ensure that the pot does not stick to the pot and write it into the intelligence document to form the official content of the written record (such as the one she just brought over), the first thing to do is to prepare without making mistakes, but accordingly often The timeliness is very poor, or it is just nonsense. On the contrary, the content of this kind of oral information may not be true, but it is often very useful. ?Hence, he quickly made a gesture to let the other person continue. The Su-27 produced by China itself is called the J-11 fighter jet, and it is very likely that it has begun to be delivered to the troops in batches. ?Cohen was a little surprised at first, and then he couldn''t help but show an expression of satisfaction. To him, the strength gap between the two armies will not change at all just because of a mere advanced fighter jet. ??But this kind of news could be a reason to ask for more defense budget next year - ?Even China has begun to equip domestic third-generation fighter jets in batches. As a great superpower, wouldnt it be okay if we also use the same third-generation fighter jets? So we must increase money quickly and produce two fourth-generation fighter jets as soon as possible. As the Minister of Defense, his job is to collect money, distribute money and spend money. So, what about the quantity? Whats the quantity? ?Cohn didnt care about the technical aspects of the military, but he needed a similar number to scare the senators. Our informants have been squatting near Shengjing Beiling Airport for several months and have discovered a total of 16 so far. ?This made the Defense Minister feel a little disappointed. ?Even if others dont understand military affairs, they at least understand mathematics. 16 aircraft, which is one percent of the total number of third-generation aircraft in the US military. ?It seems difficult to render it a particularly big threat... Henrion naturally knew what the other party was thinking at this time, so he continued after a short pause: The number so far is not large, but we have received news that the Chinese will soon be able to fully domestically produce this aircraft instead of buying parts from the Russians for assembly. By that time, there will be no limit to the speed at which they can produce aircraft, and we wont even be able to estimate the quantity Obviously, she was not really aware of the crisis, but was simply sending a message to the Minister of Defense. Across the desk, Cohen has begun to think about how to make use of such news. He has a background in think tanks and has many resources in this area, so it is not difficult to operate. ?However, he still symbolically continued to "care" about the specific content of the intelligence: Other parts are easy to say, but I think its impossible for the Chinese to produce their own engines in a short period of time, so just pay attention to the number of engines they bought from the Russians, and you can roughly calculate it, right? Thats still the case for now. Henrion felt that revealing this news should be regarded as an exchange of equal value, but Cohen had no intention of ending the conversation, and she could not just say goodbye and leave, so she had to continue: But its hard to say in the future. A lot of recent information shows that they may complete the localization of the power system within a few years. Within a few years? The Defense Minister''s expression was slightly shocked, and he quickly thought of the only possibility that he thought could make sense: Are the Russians so poor that they even sold this technology? ?Although Cohen doesnt understand technology, he at least has common sense. Huaxia has almost no experience in turbofan engines, and it is impossible to solve the power problem in such a short period of time by itself. So it can only be the Russians who transferred the technology along with the aircraft. We dont have very reliable information about this matter yet. Henrion shook his head slightly: "The Russians replaced a new head of the Federal Security Council in July, who also serves as the Secretary of the Federal Security Council and the First Deputy Director of the General Office. He manages unified intelligence and is not easy to deal with. He has always been with us before. Several cooperating informants have also lost contact recently. "However, judging from public information, China has signed several large orders with a Moscow company specializing in the import and export of high-tech products in the past two years, including hundreds of engines for civil aircraft and related technology transfers. " If this is the case, then it seems reasonable that they conduct military aircraft engine transactions in a non-public manner. (End of this chapter) Chapter 640 Air Police 2000, a small move by the Kingdom of David Chapter 640 Air Police 2000, a small move by the Kingdom of David After all, William Cohens focus is not on the threat posed by a third-generation fighter jet itself, but on how to gain more benefits for his department by exaggerating the Chinese threat. Hence, after a nonsensical discussion, he quickly gave up on continuing to delve into the specific technical sources of Chinas domestic engines. Rigorous military intelligence is one thing, but using think tanks and media to build public opinion is another. People will always believe what they want to believe. ??Among the hundred men in the Senate, there are absolutely no more than one who can really go through the procedures and carefully read the documents of the intelligence agencies. So the focus is on 70% true and 30% false, and make reasonable deductions based on certain basic facts. There are only two possibilities for the Chinese to produce Su-27 domestically. First, the Chinese hid it from the rest of the world and secretly spent several years developing an aeroengine and installing it on an airplane; The second reason is that the Chinese bought military engine technology from the Russians. ? To convince non-technical senators, the point is not what the truth is, but rather which version of the story they will prefer Obviously the second type. In the past, it has always been in a situation where the reputation is very famous, but the influence is not very big. But simply, the empire needs an enemy. Yes, the sooner the better. Although the name sounds like an intelligence unit, it is actually a private think tank with no official background. An emergency internal meeting is being held here. Make an appointment for me with Mr. Daniel Mitnick, the head of the Intelligence Select Committee. ??And it can also bring old opponents and new opponents together, further exaggerating the challenges that the US military will face in the new century. At about the same time. ??Cohen raised his wrist and looked at his watch. He felt that the time was almost up, so he changed the subject and prepared to end the conversation. Meetings like this were actually not uncommon a few years ago. Because this is more in line with an Americans understanding of the world. This has nothing to do with the other partys position. Henrion opposite had already had this intention. After a few polite words, he got up and left the Office of the Minister of Defense with the intelligence document. Huaxia, Beijing. After all, even though the Cold War is over, no one really regards the Russians as friends. However, in the past two years, due to obvious reasons, they have begun to gain opportunities for in-depth cooperation with the national defense system, and their reports have been adopted more and more frequently, and there is even a trend of developing into semi-official think tanks. After watching the other party disappear through the door, Cohen picked up the phone and dialed the number of his secretarys office. ?Although it is almost late at night, several rooms in the office building of the Commission of Science, Technology and Industry for National Defense are still brightly lit. Otherwise, if the world is truly peaceful, wouldnt the tens of millions of water workers who rely on war and arms sales all starve to death? Well, thank you very much for bringing this news. ?This Intelligence Selection Committee is the department where Cohen served before becoming defense secretary. ??As a department in charge of national defense industry construction and military technology development, whenever there are any shortcomings in key national projects, meetings will basically be held until midnight. ? Its just that in the past two years, the frequency of problems with national key projects has significantly decreased, so the number of people being called back after get off work has become significantly less frequent. This time, naturally, something went wrong because of a certain key model. ?In the conference room, Ding Gaoheng, who was almost regarded by everyone as having quit smoking, was puffing away smoke for the first time, with a grim expression on his face. After taking a long puff of cigarette, he finally broke the dead silence: "Lin Hai, let''s talk about the current specific situation of the Ring Project." The Ring Project, which is an early warning aircraft project jointly developed by China and David, plans to use the IL-76 platform to carry the Falcon radar system developed by the latter. We seek to obtain an early warning aircraft with sufficient performance within a relatively short period of time. Although the contract was officially signed more than a year ago, China Aviation Technology Import and Export Corporation, Davidson Elta Corporation and Damao''s Beriev Aviation Manufacturing Company had already had many contacts for this purpose before that. So, in the first year after the official launch of the project, the overall progress was very rapid. Even at the beginning of this year, a prepared Il-76TD transport aircraft was sent to the Kingdom of David to conduct flight tests after installing a disc-type radome. ?However, after that, the ring project did not usher in the next key node according to the preset timetable. Of course, it is normal for this kind of cross-border cooperation, especially cooperation between three countries, to experience some delays as the depth increases. But as time passed, the technical staff involved in the project in China gradually realized that something was wrong, and after collecting some evidence, they reported the news to the country. This is how we have todays meeting. Director Ding, according to the report of the leader of our technical delegation stationed in the Kingdom of David, Elta Company is probably deliberately delaying the research and development progress of the ring project. In April this year, the 14-meter radome required for the early warning aircraft had been transported from Taganrog to the Kingdom of David, and even underwent assembly testing, but the combined test flight was not immediately carried out. "The reason given by the Great Patriotic State at the time was that because the Il-76 we provided was an old aircraft, some of the airframe details did not match the drawings provided by Beriev Company, and forced assembly might be risky. They needed to The structural deformation of the aircraft is measured and the necessary adjustments are made to the installation method of the radome. "At that time, Beriev Company believed that this statement was untenable. The reason was that although our Il-76 was eight years old, it had only flown for less than 300 hours in total. It was impossible for it to appear enough to affect the radar. The deformation of the cover installation has been modified before using platforms with longer flight times, and they have never encountered this problem. " However, we considered that the ring project involved a lot of work after all, and as long as there were risks, we still had to eliminate them, so we adopted the advice of the David Kingdom and re-examined the structure of the aircraft. But from that time on, Elta began to hinder the project development process for various reasons. After repeated urging by us and Beriev, it was not until last month that the radome was installed in Iraq. On the Er-76, various reasons were used to postpone the first flight of the combination..." Following Lin Hai''s introduction, most of the other people present at the meeting showed anger. Even several deputy directors are like this. In recent years, China''s foreign cooperation in the aviation field has increased, but it is rare to encounter such a thing. Even Airbus and the European Aviation Administration, no matter what others think in their hearts, at least on the surface they have an attitude of equality and reciprocity. ???Those leaders of the national defense industry system, although they dont say it in words, they definitely feel proud. ??Now that someone is showing off like this, it is naturally impossible for him to just swallow this sigh of relief. Just a Davidic kingdom would probably not have the motive to do this. Huai Guomos tone of voice was much sharper than usual: Look, there might be some Americans causing trouble behind here. No matter who is behind it, it is absolutely unacceptable to use such small means to stumble us in the dark! ?Zhang Dongxu almost slammed the table when he heard half of it, and now he is obviously suppressing his anger: The current plan is to put pressure on the Kingdom of David. We have spent 350 million US dollars, not to let them work hard. ?Amidst the voices of expressions and condemnations, Ding Gaoheng, who was sitting at the head, also frowned slightly, but never spoke. ??The fact that David would make small moves in the ring project was not a surprise to him. Because Chang Haonan raised this possibility more than a year ago. ?At that time, it was just a reason to launch the domestic early warning aircraft backup project, but now it seems... Seems more like a prophecy (End of this chapter) Chapter 641 "Waiting until the turbofan 10 is finalized" Chapter 641 After the turbofan 10 is finalized Things to put pressure on the Kingdom of David must indeed be done. ?After being silent for a long time, Ding Gaoheng lit a cigarette again and said, which was the final word: However, from our perspective, we must also be prepared that the entire ring project will not be able to proceed. Generally speaking, by the time he expresses his stance, the meeting has basically entered the final stage. At most there will be some detailed corrections. But this time, after he made his statement, there were only a few people at the scene. Its not that everyone has any different opinions on this, its just that they were simply shocked by such a big plot twist. ??There is quite a sense of beauty when playing chess, the opponent will make a normal move, and you will be blown away with the table and the chessboard, and then another American Iai Slash will kill someone else. After all, normally speaking, even if it is possible that the project will fail, there should be a period of delay in the middle. In fact, judging from the experience of past cooperation, 80% of the city has turned around. Now they have not directly stated that they want to terminate the project, but they are just leaving a bait hanging on our side. Finally, I have worked with Ding Gaoheng for the longest time, and although he holds the title of deputy director, his level is actually the same as the former. Zhang Dongxu was the first to come to his senses: But in the end, the transaction was still completed normally. Ding Gaoheng replied almost without hesitation: In this case, we can definitely think that David was not prepared to complete the ring project at all. ??Although he had heard Chang Haonan''s analysis of the ring project, he did not listen to everything compared to Ding Gaoheng. Definitely not early. So, we have to use our tactics to deal with each other, and on the other hand, we must use the fastest speed to apply for allocating subsequent resources to domestic models! In fact. Before today, he had a conservative attitude towards Chang Haonan''s previous words. ?This has nothing to do with trust or not. ?Although the country''s foreign exchange reserves have been filled up a lot in the past two years, they are not to the point of not taking so much money seriously. ?Furthermore, if the table is turned over just like that, even if the 350 million yuan paid in advance can be recovered, it will definitely take a long time to negotiate. So on the one hand, I can understand the brain circuit of the other party making such a radical decision, but on the other hand, I can''t help but feel a little pity like everyone else. Even Huai Guomo was a little confused. ??Except for Huai Guomo, the other two deputy directors had little contact with Chang Haonan before. They had met a few times during the previous leadership team expansion meeting, so naturally they didn''t know Ding Gaoheng''s ideas. It is impossible for him to make a 180 change just because of someone''s words. So we made two preparations. On the one hand, we narrowed the threshold of psychological expectations for the Ring Project. On the other hand, we allocated some resources to the Air Police 200 project so that we would have a backup in case something went wrong. Mainly because the matter is big. Director Ding, although we have to prepare for the best and plan for the worst, is it a little too early for us to plan for the worst? ?Just like when airborne equipment was introduced from Western countries in order to develop the J-7M and Qiang 5C, a similar situation occurred. At this point, he paused for a moment, and his eyes calmly scanned the crowd in the conference room in front of him: The plan is to put us in a dilemma, not to be willing to part with the sunk cost of 350 million US dollars, and to waste as much time as possible. Even if this person is Chang Haonan. ?However, what is happening now proves that the other partys concerns at the time were completely accurate. ??Moreover, all the details can be matched! ?This made Ding Gaoheng couldn''t help but recall the first time he had a phone call with Chang Haonan two years ago. At that time, we even contacted the other party through Du Yishan. Almost the same plot. It''s just that the content of the discussion between the two at that time was the development route of China''s aviation industry. Later, it was also through Boeing''s acquisition of McDonnell Douglas that Chang Haonan''s idea was completely correct. ?Two years have passed now, whats the result... Needless to mention it. ?Who would have dared to imagine before that a European aviation company would take the initiative to seek cooperation? Who dares to imagine that China can achieve reciprocal and mutual recognition of airworthiness certification with Europe and the United States? The results have now been realized. In this case, with the opponent''s ambitions already half-clarified, Ding Gaoheng''s balance has naturally tilted... ?At this critical moment, Huai Guomo also figured out the ins and outs of the whole thing. He first broke the silence and expressed his support for Ding Gaohengs idea: "Everyone, looking back at our foreign cooperation projects in the past few years, all the projects that were ultimately successful, whether it was MA-60 or Project 11, were the result of mutual reliance on each other. To put it bluntly, that is Holding each other''s lives tightly." "But the ring project, although it is still an equal cooperation in name, in fact, we are only paying for it. Although the unit price of 350 million US dollars per aircraft is high, after all, Elta is not on the verge of exhaustion like Tupolev.???? "In other words, in this project, we have no chips other than flipping the table. In other words, there is no possibility of gambling. " So, I think what Director Ding just said makes sense. ?This kind of internal meeting is not entirely a one-word meeting. But now that the director and the first deputy director are on the same side, there really is little room for others to operate. What''s more, the explanations given by the two people, especially Huai Guomo, who just laid out the facts and made sense, are still convincing. Zhang Dongxu, who was hesitant just now, also followed the good advice and no longer insisted on his own opinions: Thenif the Kingdom of David resorts to procrastination, how should we operate to completely decouple from the other party as soon as possible? The decision-making level for the Ring Project is so high that even Ding Gaoheng cannot fully make the decision. So what he just said was just "be prepared to be unable to proceed." Concerning this issue, Ding Gaoheng has already had a draft in his mind: In the middle of last year, after the embankment construction operation ended, we launched the Air Police 200 project based on the Y-8 platform at the suggestion of Comrade Chang Haonan. Comrade Haonan personally participated in part of the design work at that time. However, because it has always been a backup project, the resources allocated are relatively limited, and it has not yet reached the stage of test flight. "First, let''s divert some of the resources in our hands. Anyway, if the David Kingdom continues to delay like this, we don''t have to pay for the next node. As long as the 14th Institute of Electrical Engineering and the Air Police 200 of Shaanxi Aircraft can take the lead in the first flight. When the efficiency of the two sides is compared, the gap will be immediately apparent, and the superiors will naturally have confidence in the independent model. " ?This arrangement was basically seamless, so it was quickly unanimously approved. ?However, after the vote was passed, some people still raised doubts: "Director Dante, after all, the Ring Project uses an IL-76 to modify an early warning aircraft. If the Air Police 200 is a Y-8 platform... then there should be no way to completely replace it regardless of the size of the radar equipped, or the range and airtime. " After the decision was made, Ding Gaoheng finally relaxed a little. But what follows is the tiredness that has just been blocked by the senses. After all, he is also a person rushing to reach 70 years old. So he nodded while packing his things: In the long run, we will naturally need a larger platform. But the most urgent task is to prove through the relatively short and quick project of Air Police 200 that we can build our own early warning aircraft without the need for David. After the meeting, Huai Guomo, who knew more about the situation, followed Ding Gaohengs footsteps: Old Ding, I think you have further ideas, right? ?At this time, he had left the conference room, and the cool breeze in the autumn night had relieved a lot of the sleepiness he had just felt. It is true, but it cannot be regarded as mine. He replied simply: When we made the decision to introduce the Tu-214 passenger aircraft as the C909 model before, Xiao Chang mentioned that the 110-ton model is very suitable as a platform for special aircraft including early warning aircraft. "It was only the end of 1996, and the contract for the ring project had not even been officially signed, so I just thought it was a casual comment. But thinking about it now, I am afraid that he has been planning for us to independently develop an early warning aircraft since then... " Happy for the country, dont be speechless for a moment. Chang Haonan almost took care of everything. After a short pause, Ding Gaoheng waved his hand again, and then changed the topic: But this matter cannot be rushed. The two projects that Xiao Chang is currently working on are at a critical period, especially the Turbofan 10, which will be the core of our countrys main equipment for at least the next twenty years. We will definitely not be able to allocate our energy at this time. Haiguo Mo immediately understood: That...means to wait until the turbofan 10 is finalized... "right." Ding Gaoheng, who had guessed his idea, nodded slightly: Lets lay out relevant resources first, and then let him take over this large-scale early warning aircraft project after the Turbofan 10 is finalized. Hearing this arrangement, Huai Guomo showed a hint of joy, but then he seemed to think of something: However, the turbofan 10 is not inferior to the turbojet 14 which was already in service. It fell down after it was finalized. We must continue to improve it. Xiao Chang...can he really let go?" Is this... Ding Gaoheng raised his head and looked at the crescent moon in the sky: "According to Xiao Chang''s statement in the project progress report, the core engine of the Turbofan 10 only needs a few improvements to become a genuine fourth-generation engine. However, our country''s material level and production process are too lacking. , many places are reluctant to even produce third-generation engines, so they compromise on producing such a third-generation and half-performance turbofan 10. "So major follow-up improvements will probably have to wait for the previous stage before the project can be officially launched. As for the small improvements based directly on the turbofan 10... I think Xiao Chang has concentrated more than half of the country''s aerospace research efforts on it. The competition is definitely meant to train talents through the project, and it should not require his direct participation. " So, it shouldnt be a problem! (End of this chapter) Chapter 642 Turbofan 10, installed! Chapter 642 Turbofan 10, installed! ?In order to prevent Chang Haonan from being distracted at the most critical stage of the project, Ding Gaoheng did not immediately notify him of David Guo''s mischief on the early warning aircraft project. So the former didnt know yet that he had been booked in advance. Of course, in fact, he himself has already had the idea to develop an early warning aircraft based on the C909 passenger aircraft platform. I didnt have the conditions before, and I really didnt have enough time to do it. According to the current progress, the design of Turbofan 10 should be finalized by the end of next year or the beginning of the next year. As for the heavy-duty die forging press, it can currently keep up with the National Day gift schedule, and it will not be a problem to start trial production in the middle of next year. After solving the equipment problem, Hufei can start producing C909. ? ? It will definitely be assembled from parts in the beginning, but in any case, with the technical data, especially the technical data involving the airframe structure, the prerequisites for modification as a special aircraft platform will be established. At that time, the prerequisites for the development of large-scale early warning aircraft will be basically mature. So, the two peoples ideas actually coincide with each other. This is mainly to shorten part of the process and allow the installation test to start early. ? Jiang Fuhe took the test results that had just been printed out and found Chang Haonan who was in the control room to sign: The results of the proportional life test show that Turbofan 10 has a confidence level of more than 98% and can meet the design specification requirement of an overhaul interval of more than 1,500 flight hours. Chang Haonan just gave a routine instruction, but he was not really worried. ?Of course, since it is a simulation, it cannot be restored 100%. So there is a question of confidence. ?For example, if Chang Haonan chooses a time ratio of 1:3, it only takes 500 hours to simulate the 1,500-hour test time under normal circumstances. Dont worry, I promise to leave the subsequent test data in your hands with high quality and quantity. The so-called full cycle life test is to actually use an engine until it is scrapped. That is what Chang Haonan is about to deal with. In order to improve test efficiency, Institute 624 even temporarily modified the SB102 test bench originally used to test turboshaft/turboprop engines. Liming Factory also temporarily arranged the production of a second B0102 prototype to participate in the test at the same time. The latter is to allow the engine to perform specific cycle conditions, thereby shortening the test time according to a specific ratio. ??The following test items, mainly the full cycle life test that cannot be started until B0103 is shipped, are more time-consuming and energy-consuming. The rest just need to be done step by step and according to standards. Even so, with most of the subjects passed in one go, it still took almost three months for the bench test to complete the core projects before the installation and flight test. As an engine that was developed from scratch starting from the core engine, the workload of bench testing is indeed very large. According to our standards, at this point, the engine can begin installation experiments. ??The latter''s voice was still a little trembling when he spoke, but he could still be heard with confidence. After all, although Haiyides past resume is average (compared to Chang Haonan), he is still an old man who has participated in the development of several models, and his basic skills are not a problem. ??As he spoke, he looked at Haiyide, who was wearing a cotton-padded jacket but was still protected from the cold and humid weather in the south. However, Chang Haonans attention is still entirely focused on the turbofan 10 project in front of him. The corresponding one is the proportional life test that Jiang Fuhe mentioned just now and was just completed. The latter had already seen the results before the report was printed, so there was no need to waste any more time at this time. After a little confirmation, he signed his name at the end: "So my work here is basically over, and other subsequent projects will be handed over to Mr. Hai." Now that Chang Haonan wants to fly back to Shengjing, he naturally does not need to fly to Taoxian Airport first like before or what most people did, but directly lands at Beiling Airport. Especially since I was going to Factory 112 this time. Mr. Chang. As soon as I got off the plane, I saw He Ming wearing work clothes and leading a few people to the tarmac to greet him. Junior brother, long time no see. ? Walking behind was senior sister Yao Mengna, who had not seen Chang Haonan for almost a year. The latter has been responsible for optimizing the final assembly efficiency of Project 11 during this period, as well as dealing with the weight reduction issue of the improved new airframe. After these two years of experience, she has become a bit like the stereotype of a female doctor. Looking at the high-spirited Chang Haonan who had just stepped down from the ramp of the business jet, Yao Mengna suddenly had the urge to go up and hug him. ?However, she also knew that the current occasion and time were not right, so she quickly suppressed that feeling in her heart. Mr. Chang, the No. 1010 verification machine has basically completed its final assembly and is now parked in the workshop. Do you want to go and take a look? ?He Ming felt that the atmosphere seemed a bit strange. Although he couldn''t put it into words, he still keenly changed the topic to work. "So fast?" Chang Haonan originally thought that he would have to wait for a while before he could start the installation and test flight after arriving at the place. After all, the verification aircraft was quite different from the mass-produced model, and it was a product that required special assembly. However, the efficiency of Factory 112 obviously exceeded his expectations. "Lingming Factory delivered the B0201 machine at the end of November last year. Then we selected several shifts with the best technical skills and work attitudes among the comrades in charge of final assembly, and worked overtime to complete the No. 1010 machine ahead of schedule. As He Ming explained, he turned around and led Chang Haonan towards the assembly workshop which was not too far away. ?Beside the pulsating production line that has gradually begun to exert its power, a two-seat Flanker fighter jet painted in yellow is parked alone. ? It was originally supposed to be one of the first batch of J-11S, but it was selected for installation testing of the turbofan 10 engine during the component production stage. Hence the number 1010. Chang Haonan passed the other six aircraft being assembled on the production line and walked quickly over. At first glance, there is no obvious difference between this aircraft and the ordinary Su-27UBK. But if you go around the rear hemisphere, you will find that there are obvious differences in the tail nozzles of the two engines. The right engine is still the same AL31F as other Flanker series. ??However, the left engine does not have the common convergence adjustment piece, but is composed of a full circle of fixed and immovable metal pieces. There is another layer inside. That is, the ejection nozzle. ?Compared to the convergent-expansion nozzle that applies the Laval nozzle principle, the ability to adjust the airflow under low-altitude subsonic conditions is slightly worse, but the advantage is that many fish scales and connecting rods are eliminated. It is lighter in weight and can greatly simplify the mechanical structure. For China''s current production level, this is a huge benefit. In addition to this most obvious difference, there is also the fact that in order to be compatible with the analog-mechanical control system of the right AL31F and the full digital control system of the left turbofan 10, this No. 1010 machine is simple and crude between the belly inlet. A cable duct is installed. Considering that the aircraft engine test aircraft does not need the two heavy-load hardpoints at this location, there are no other problems except for the ugly point. Chang Haonan circled the plane, then stopped directly behind the plane, then raised his head and stared at the two tail nozzles for a long time. Finally caught up ? He ??stretched out his hand upwards, gently pressed it on the outer surface of the exhaust nozzle of turbofan 10, and murmured in a low voice: The third-generation mobile phone that is 100% domestically produced will be coming soon (End of this chapter) Chapter 643 J-11 turbofan demonstrator Chapter 643 J-11 Turbofan Demonstration Machine ?Although the engine was designed by Chang Haonan himself, he still couldn''t hold back his curiosity. He leaned over and took a look inside the tail nozzle. With the help of almost ubiquitous light sources inside the factory to eliminate shadows, every detail deep in the afterburner can be easily seen. The structure of the hot end outlet of the engine has a panoramic view. ?The petal-shaped flame stabilizer, the surrounding fine atomizing fuel nozzles, and through these structures, the turbine disk and turbine blades can still be seen faintly... ?Like a finely carved work of art, every part is carefully placed. ? Over the past few months, Chang Haonan has basically been spending time with the two batch 01 turbofan 10 prototypes that participated in the test, except for sleeping time every day. It is no exaggeration to say that he can figure out how many pipes and cable connections there are on the surface of this type of engine as soon as he closes his eyes. Its like having a 3D rendering module installed in your head. but. So, they naturally think Mr. Chang is in a daze, so he must be thinking. And I was in a daze for a long time. ?It seems there is not much difference, but the latter has unique vitality... So, the longer you think about it ?How does one look like someone who is in a daze? ?This verification aircraft numbered 1010 is a separate project, named J-11WS, and the leader is the latter himself. Even an ordinary person, as long as he takes a look at Chang Haonan, can instantly understand why aero engines can be called the crown jewel of industry. ?Finally, someone couldn''t hold it any longer, so he came to He Ming''s side and whispered: "Mr. He...Mr. Chang, he...couldn''t he see some problem?" Even Chang Haonan, who led the entire project research and development process, felt a little intoxicated for a while Although Chang Haonan''s own inner drama was very full, it was almost impossible to feel how much time had passed. Like lifelike statues and real people with flesh and blood. The supreme interpretation of steel and technology, the beautiful romance of precision machinery. Since you are thinking about it, it must have deep meaning. But the people standing around had basically worked with the former during the August 3rd Project, and they knew how outrageous the other''s mind was. The feeling of an engine fixed on a high-altitude platform is completely different from that of an engine actually installed on an aircraft. To outsiders, this scene is just staring at the chrysanthemums of the fighter jet in a daze. What, I seem to be pretty good... One person can handle three or four unrelated tasks. Looking at the scene in front of him, his inner sense of satisfaction and accomplishment instantly filled up. So He Ming''s subconscious reaction was to shake his head confidently. ?However, when he was about to open his mouth to deny it, the words came to his lips and he was a little unable to come out. It would have been better if the person just didnt say anything. But now after being mentioned in this way, he also felt a little guilty. Should...cant? After he stopped talking for a while, He Mingcai replied in an ambiguous tone: We have to conduct an additional inspection after each major step in the final assembly process. It is unlikely that there will be any major problems. "And...even if there is a problem, it won''t be visible with the naked eye..." ?These two sentences are more like explaining to myself than explaining to others. Fortunately, the effect is good, and the slight mental fluctuation has finally stabilized again. On the other side, Chang Haonan finally came to his senses after wandering around the tail vent for a while, turned around and looked at the other people again. This plane As soon as he opened his mouth, he didn''t know if it was an illusion, but out of the corner of his eye, he saw the bodies of several people on the opposite side shaking violently. Although it felt a bit strange, he only paused for a moment, and then continued to ask: "What parts of this plane are still unfinished?" The moment he heard this question, there was a burst of relief around He Ming. It doesnt just mean that there is something wrong with the plane. The flight control system still needs final debugging. He Ming finally felt relieved and immediately replied: The control rate of this aircraft is really weird. Not only that the thrust of the left engine is more than 10% higher than that of the right engine, but the control methods of the two engines are completely different. Especially, the turbofan 10 is compatible with full-authority digital control. In this way, when the throttle valve moves, the flight control needs to provide feedback from both analog and digital levels, direct and indirect, at the same time. Its not difficult to take these things apart individually, but putting them together still requires more work to ensure the basic controllability of the aircraft. Although he was talking about the difficulties he was facing, his tone was obviously quite brisk. After all, for China Aviation Industry, these are all happy worries. They have built similar aviation engine verification aircraft in the past, but the main concern at that time was whether the engine would catch fire and explode midway, affecting the safety of the entire aircraft. For this reason, some proven models even specially arrange a complete hydraulic control system for the left and right engines as a backup to prevent the other one from being affected after a single engine failure. ?Situations like the current situation where domestic engine thrust is so powerful that the plane easily yaws are also technical problems, but they can definitely make everyone laugh out of their dreams. Do you need my help? ?Chang Haonan patted the little engine oil that had just been stained on his hands, returned to where the other people were standing, and asked at the same time. He Ming waved his hand: "That''s not necessary. When we were preparing to develop the J-11WS, we worked with the 601 Research Institute to replace the J-8 II ACT with a turbojet 14 and tested the core control algorithm. It was basically straightened out. " This time, the main reason is that the distance between the two engines of the J-11 is relatively far, so when the thrust is unbalanced, the yaw problem will be more serious than that of the J-8IIACT. Just slightly correct the parameters. Now, after the tempering of two consecutive projects, Project 83 and Project 11, China''s domestic aviation technology research and development capabilities have obviously reached a new level. ?This is naturally a good phenomenon, and can liberate Chang Haonan from some trivial projects to a large extent. Just like the J-11WS. ? Strictly speaking, this aircraft is not part of the Turbofan 10 project, but it is indispensable for the Turbofan 10. ??If he needs to be personally responsible for completing it like the engine itself, then the entire project will probably be delayed by at least a year than it is now. Now that the other party said that he could complete it on his own, Chang Haonan naturally would not forcefully ask for an intervention, but simply changed the topic: By the way, I heard from my senior sister before that Shengfei purchased two new supercomputers from Sugon Group this year? He Ming was stunned by the huge jump between the two questions, and then nodded: "Yes, there is the Sugon 2000-1, which was developed in the second half of last year. Its performance can probably catch up with the international level in 1993-94. There is also the Sugon 2000T, which was jointly developed by Sugon Group and your Torch Group. model, it is said that the calculation efficiency of TORCH Multiphysics is specially optimized from the hardware perspective. Is Dawn 2000T already available for purchase? ??When Chang Haonan received three National Science and Technology Awards early last year, he discussed the idea of ??"bundled sales" with Academician Li Jie, director of the Institute of Computing Technology of the Academy of Sciences and chairman of Shuguang Group. However, the difficulty of this idea is actually mainly in the hardware. There is not much that Torch Group needs to do. It only needs to peel off some of the functions of the professional enhanced version and add them to the professional version, and customize Sugon 2000T for public release to global users. The authorized version is sufficient. So he entrusted it to the technical staff below, and basically didnt pay much attention to it despite his busy schedule. ?As a result, only one year has passed, and Shuguang Group has even brought out machines, and the efficiency is really a bit ridiculous... It has not been officially released yet, so it is considered to be in the public testing stage. Sugon Group promised that if there are any problems in the future, it will be responsible for after-sales maintenance, so we bought it in advance. ?He Ming briefly explained the origin of this machine, and then changed the subject: Mr. Chang needs to use supercomputer now? "right." Chang Haonan naturally did not need to be polite to this person, so he replied simply: I promised others to help me study the applicability of several algorithms before, so I have to give it a try with a supercomputer. Its okay. ?Of course He Ming could not refuse, but after agreeing, he hesitated: But it only takes us two or three days to integrate the new flight control. Your research..." Chang Haonan waved his hand: Two or three days is enough. Those algorithms are all derived from my results, so there is no difficulty..." He Ming was speechless for a moment. Thenanyway, the computer room management knows you, so just go and register. (End of this chapter) Chapter 644 Take off, that’s great! Chapter 644: Lets take off, its so cool! ?The timetable promised by He Ming was by no means an empty lie. ? It took them only three days to complete the last piece of the puzzle on the No. 1010 technology verification fuselage. After all, No. 1010 is a highly confidential verification aircraft, so after completing all in-factory testing processes, there is no traditional red flower and ribbon link. Everyone, including Chang Haonan, just held a brief ceremony in the final assembly workshop to celebrate the J-11WSs achievement and preparation for its first flight. I never dreamed before that it only took about a year and a half from the time when the first large-component J-11 rolled off the assembly line to when the J-11 was equipped with a domestic engine ?When everyone applauded, Luo Shida, standing next to He Ming, said with emotion. ??It''s a bit like talking to myself, but several people nearby can still hear it. The latter, as a retired comrade, was initially rehired to do some translation and format conversion tasks of Russian drawings. It was expected that the job would be over after a few months. But which veteran cadre can withstand such a test of a domestically produced heavy-duty fighter jet? Simply perfect! ?Thinking of this, Luo Shida raised his head again and looked at the back of Chang Haonan standing in the middle of the crowd. ??In short, although the analysis was wrong, in the end, due to the collision of errors, the correct conclusion was reached... Its not just domestically produced. At this time, Chang Haonan also took a step forward, came to the front of the stage, and cleared his throat: Then, I have been rehired until now... "Um?" But compared to using CFM56 as the core machine to achieve a thrust-to-weight ratio of 9, he still feels that the possibility of coming up with a new engine in two years is smaller. Luo Shida was re-employed. Although his status was not low, he had no official status after all. He almost deliberately rarely asked about things other than Project 11. At present, there were not many updates on the knowledge of Turbofan 10, except for some that almost everyone knew. Apart from the rumors, it is still basically the time before retirement. So, after these two ideas collided, Luo Shida came to a conclusion- I used to wonder how one person could be responsible for so many projects at the same time, so I always thought he was the kind of person who uses his strong background to gain fame and reputation. He Ming knew that the other party''s analysis was actually very reasonable, but the problem was that some people were unreasonable at all, and it was not easy to explain for a while. In addition, the ceremony was about to end, so he had to make a long story short: In short, the current turbofan 10 has basically no technical relationship with the previous turbofan 10, except that they both use the same equipment number. So after hearing this, I was immediately stunned: "I heard that this project was re-established the year before last. Lao Zhang took the initiative to report that he was going to build a naval gas turbine, but it took two years to produce the product... The overall technical plan should not change much, right? Although He Ming''s main business is machinery manufacturing and he did not have the opportunity to participate in the design review and detailed plan design the year before last, he had participated in the China Aviation Development Industry Conference as a specially invited technician the year before last, and the J-11WS technology The person in charge of the production of the verification machine still knows something about the turbofan 10: "I have talked with engineers from the 606 Institute and Liming Factory before. The technical solution of this turbofan 10 is not only completely different from the American CFM56 core machine, but in my impression, no other country has used a similar design. It is completely made by our own hands, which is equivalent to starting from scratch. This is the most difficult part..." A few months later, Luo Shida could not leave. By the time he was invited out of the mountain, Project 83 had already been finalized, so he had never met the latter directly. He had only heard some mysterious rumors. "Um" ??But if the facts are as he thought just now, then this kind of scheming to change the situation must have been thought up by the other party. It seems that he is really a master... The superiors obviously worked on two projects, one overt and one undercover. The overt version of the Turbofan 10 was a replica of the F110 engine, and it was stumbling along the way. This was a way to hide the flaws and make others relax their vigilance, while the undercover project was to start from scratch. In the beginning, under the cover of the former, he finally succeeded in cultivation, and the year before last, he returned to the sight of ordinary people by borrowing corpses and reviving them... After explaining, perhaps because he was worried that he was not convincing enough, he added another sentence: Mr. Luo, do you think that if you still use the CFM56 core machine, how can it be possible to achieve a thrust-to-weight ratio of 9? So it must be brand new..." Luo Shida just couldn''t update information quickly enough because he was retired, and his thinking ability was still fine, so he realized that He Ming was right after a quick thought. I announce that the J-11WS technology verification aircraft has officially completed its final assembly and is ready to leave the factory! As he finished speaking, an aircraft tractor that had already fixed the tow bar to the front wheel of the aircraft started and slowly drove towards the door of the workshop. Compared with a few days ago, this aircraft has now been painted with the same painting as the Air Force Su-27SK/J-11, and the aircraft number has been deliberately concealed to avoid any clues being seen during frequent flight tests. . After all, although the camera is pointed at the airport and life is walked into a prison cell, in terms of operation, there are so many places where you can use a telephoto lens to capture the takeoff and landing of the plane, and it is impossible to capture it completely. Considering that the technology of the J-11 is relatively mature, there is no need for the same aircraft to conduct continuous test flights. Moreover, the original yellow paint is quite eye-catching and can be seen clearly from a distance. ??If you show up every day, people will soon find out the clues. After changing the paint, it looks exactly the same as a mass-produced model that is about to be delivered to the troops. As for the difference in the engine tail nozzle, it is impossible to hide it, but as long as the take-off and landing process uses a relatively steep route, it is also possible. Not that easy to spot. This can be regarded as relieving worries in this regard. ??The ground crew who had already prepared outside set up the boarding ladder on the left side of the nose of the aircraft. The test pilot, who had also completed preparations early, saluted Chang Haonan and others, and then stepped on the ladder to enter the cockpit. The aircraft and flight control itself are both mature technologies. Only one of the engines is brand new, and all unmanned project tests have been completed before leaving the factory. So, the next step is to directly prepare for the first flight. Since the J-11 is not equipped with an auxiliary power unit, the engine still needs an external power supply vehicle and an air source vehicle to serve it from cold to start. It is a new machine after all, and it takes half an hour to complete a set of procedures. ??It was also during this period that Chang Haonan and his team moved from the assembly workshop to the flight control center inside the tower. Call the command center on 1010. The plane has started and is taxiing. It is about to enter the runway. Please request instructions. ?The engines on both sides of this aircraft have different thrusts, and the flight subjects are also very different from those of a normal prototype. Once you get used to it, it will be awkward to fly a normal aircraft again. Therefore, Fu Guoxiang, the chief test pilot stationed at Factory 112, was not selected to participate in the air test of the Turbofan 10 this time, but continued to perform the factory test flight missions of the F14 and J-11. ??Sitting in the cabin now is another test pilot Song Shangcai. The J-11WS is modified from a two-seat aircraft, but the rear seat is retained just to improve mission compatibility. There is no need for a second pilot today. Stop in the take-off position first, keep braking, and prepare for a pre-take-off test. ??It was also the first time for the flight commander to perform a special aviation engine test flight mission, so he had a thick flow chart next to him and was issuing instructions according to the above steps. ?Although he is confident that he has memorized the contents backwards and forwards, the rules are the rules, and there is no way to increase the risk of mistakes just to show off your skills. In the cabin on the other side, Song Shangcai stopped the plane steadily at the end of the runway according to the instructions just transmitted by the radio. He then pulled up the brake lever and gradually pushed the throttle forward from idle, staying at several specific points in the middle. Observe the situation from your position. ?After all, this runway does not have a special wheel block like an aircraft carrier, and the braking force that the aircraft itself can provide is limited. ??If you brake the car on the runway and use afterburner, the huge thrust can directly change rolling friction into sliding friction, and a pair of main wheels will be useless. So I can only open it about half way and give it a try. After all, the ground test of the engine has already been done in the factory. Now it is just a precaution and to let him get familiar with the slightly awkward characteristics of this aircraft. With the gentle movements of Song Shangcais left hand, the pointers of the two tachometers on the left and right rotated clockwise at the same time. Its just that the speed of the engine on the left increases significantly more sharply, and the final position of the pointer is further to the left. Even sitting in the cabin, he could already feel that the entire plane was preparing to take off like an arrow. Report No. 1010, the engine speed remains stable, and the response of the test engine is slightly faster. Song Shangcais voice sounded again: Request to take off. After a few minutes of smooth operation, he also gained a lot of confidence in this special verification machine No matter how good a pilot is or how thorough his pre-flight preparations are, he will definitely fly more carefully when he first gets a new aircraft. After gradually improving your confidence and proficiency, you can gradually explore the ultimate performance of the aircraft. Received, allowed to take off ?At almost the same time as the commander issued the order, Song Shangcai, who was almost impatient in the cockpit, released the brake handle, then pushed the throttle directly to the "afterburner" position, and at the same time moved his right hand slightly to the left. Standing in front of the floor-to-ceiling window of the tower, Chang Haonan could see that No. 1010 was dragging two eye-catching tail flames, one purple and one blue, across the runway in front of him without even using a telescope. ?Just ten seconds later, with the slight rotation of the horizontal tail, the aircraft raised its head lightly. Left off the ground and take off! (End of this chapter) Chapter 645 Too good performance can sometimes be a source of distress Chapter 645: Too good performance can sometimes be a source of distress ?According to the requirements before the test flight, in order to prevent the distinctive chrysanthemums of this aircraft from being photographed by interested people as much as possible, the afterburner state should be maintained after takeoff until it climbs to an altitude of more than 3,000 meters before leveling off and starting normal test flight subjects. ??The first reason for turning on afterburner is to climb faster, and secondly because if someone does squat during the climb, the dazzling tail flames will easily overexpose the camera, making it difficult to clearly capture images near the engine. The thrust-to-weight ratio of the Su-27 when empty and light on fuel exceeds 1. The aircraft that was temporarily pulled out is the latest batch after weight reduction. Therefore, even a two-seat model with slightly less maneuverability can make such an action. It''s still flowing smoothly. In addition, the day was a little cloudy, so in just a few breaths, Chang Haonan and others holding the telescope could no longer see the shadow of the plane. Tsk tsk tsk Although they could no longer see anything, except for Chang Haonan, who had been looking at Station 624 for almost a thousand hours, the others still looked unfinished, and even refused to put down their telescopes. "This tail flame... is so blue that it turns purple..." ?Luo Shida, who was standing on the left hand side of Chang Haonan, was a little hunched due to his old age and recent intense work, but at this moment, he stood up straight: Ive never seen such a beautiful one before The latter is now basically immune to this type of appreciation. Under normal circumstances, even when the other party is still preparing the groundwork, he has already prepared the polite words of routine response just by subconscious mind. The result was that I was completely speechless for a while. Yes, the temperature was still relatively low when we first designed it, but the cooling technology and new coatings developed later were so effective that it was raised by more than 200 degrees..." Chang Haonan was halfway through speaking before he felt something was wrong ??But I dont think its appropriate. There is no strategy to speak of. The main thing is that the project team members work together. Otherwise, even if I have a ready-made plan, I wont be able to advance so fast..." In fact, in the years before Chang Haonan was reborn, as the temperature in front of the aircraft turbine increased to more than 2000K, engineers no longer believed that there was a strict correlation between the color of the tail flame and the temperature. So after thinking for a moment, he replied: Where, not just... When Luo Shida on the opposite side saw him being speechless, he confirmed the plot he had just imagined. He stopped talking and just turned back with a mysterious smile and raised the telescope again. , looked at the sky where there were only clouds left, and at the same time took the initiative to change the topic: The tail flame of this colorthe temperature in front of the turbine must be quite low ??As a result, when Luo Shida heard his answer, he was not in a hurry. Instead, he smiled mysteriously: It doesnt matter, I understand, the string of confidentiality needs to be tightened... You dont need to answer directly... ??Why does this old comrades focus seem different from others? ??But the other party is an elder after all, and Luo Shida is also a Taishan Beidou-level figure in the field of aviation manufacturing, so he cannot let the other party stand aside. I, Mr. Luo, have only retired a few years ago, but I had never heard of such a turbofan 10 before the year before last. Comrade Haonan really has a good idea... Chang Haonan was completely confused. He almost blurted out and asked the other party what he knew. But Luo Shida did not play his cards according to common sense at all: At this point, he finally put down the telescope and turned to look at Chang Haonan next to him: "The waves behind the Yangtze River push the waves ahead..." So he nodded directly: However, as we approach the millennium, this understanding cannot be said to be problematic. ??If the latter continues to think like this, there won''t necessarily be any outrageous plot. Chang Haonan''s answer made Luo Shida raise his eyebrows. Hearing this, he thought to himself, the Turbofan 10 also encountered an iterative upgrade of active cooling technology during the development process. It will definitely not be completed in less than ten years. My previous guess Sure enough... Fortunately at this time, Song Shangcais voice came over the radio: Report to the command center that it has reached an altitude of 6000 and requests to switch the flight mode to the test state. The people standing in front of the window suddenly became serious again, put down their telescopes, and returned to the radar screen in the command center. Received, approved the request. ?The commander sitting behind the communication terminal replied decisively. At the same time, in the cockpit of Unit 1010, Song Shangcai quickly entered a series of four-digit numbers on the multi-function display, and then pressed "Confirm" to release the flight mode lock restriction As He Ming said before, the flight control of this J-11WS has been verified on the J-8IIACT a long time ago. In addition, the turbofan 10 has full digital control capabilities, so it directly integrates flight and thrust at the control level. change. It can even be regarded as the second Flanker in the world with this ability. At the flight control level, it is directly on the same starting line as the No. 711 high-mobility demonstration aircraft. Compared with traditional flight control systems that control the rudder and power separately, the biggest advantage of integrating flight and thrust is that the movements of the pilot''s hands and feet no longer directly control the power and rudder of the aircraft, but directly control the aircraft''s Behavior. For example, the most common action is to push the throttle lever with the left hand. In the past aircraft, this action actually increased the engine speed, thus pushing the aircraft to increase speed. However, as to how, how much, and when the rotational speed is increased, it is up to the pilot to make his or her own judgment. For a control system that integrates flight and thrust, pushing the throttle lever is only equivalent to giving an acceleration command to the aircraft. The flight control will automatically coordinate the cooperation between the engine thrust and the rudder surface to make the action expected by the pilot. . ?This ability is basically useless for normal aircraft in level flight, but for fighter jets that need to perform various extreme maneuvers, it can greatly reduce the pilot''s operating pressure. On this J-11WS, considering that the aircraft still needs to ensure basic safety during takeoff and landing, and the flight test subjects are also completed in the sky, when designing the flight control, the thrust under normal flight conditions was specially considered. Control is handed over to the flight controller. In other words, the test engine will automatically keep the thrust as much as possible with the other engine, and at the same time, the six control surfaces of the aircraft will also automatically adjust to try not to let the aircraft go astray. This is also the reason why Song Shangcai saw that the pointer of the left engine tachometer was relatively small just before taking off When the full throttle thrust is greater, to ensure the same thrust as another engine, the speed ratio naturally has to be lowered. ? Its just that the fully electronically controlled turbofan 10 adjusts thrust much faster than the electronically controlled + hydraulic AL31F, so at the moment when the throttle changes, you still have to move the lever slightly to ensure balance. Now, after changing the flight mode to the experimental state, these two layers of protection no longer exist. The two engines will maintain the same throttle opening according to the position of the throttle valve. Sure enough, almost the moment Song Shangcai pressed the confirmation button, the seal was finally released after he had been holding the turbofan 10 hard. ??He felt the entire plane lurch sharply to the right, and almost subconsciously stepped on the left rudder, trying to pull the plane back to flying straight forward. But anyone who has flown an airplane knows that without the involvement of flight control, the impact of power asymmetry cannot be compensated for simply by adjusting the vertical tail action surface. So, even though Song Shangcai had made a lot of preparations before taking off, it was still a little difficult to control the amount of movement on his feet once he actually got started. ?Especially when he was changing the throttle while performing preset flight movements, it was so awkward. It took him three attempts to make a steep turn without losing height. Unit 1010, is there a problem? The tower commander saw the abnormal track on the radar and asked with some concern. Report to the command center that the thrust of the left engine is too great and the throttle response is much more sensitive than before. I need to get used to it for a while. ??Although Song Shangcai is not as experienced as Fu Guoxiang, he is also from a serious test pilot training unit and is confident that he can adjust in a relatively short period of time. The latter nodded and indicated that he should just listen to the pilot. ?Although this flight carried light fuel, thanks to the large fuel capacity of the J-11, it was more than enough to complete the test flight. , Hearing this answer, the commander looked back at Chang Haonan who was standing behind him, obviously seeking advice. Just listen to the pilot. ?Chang Haonan put a hand on the opponent''s shoulder and said in a deep voice: The performance of this engine has been greatly improved. Its normal for you to not get used to it when you first get started, but there wont be any big problems. (End of this chapter) Chapter 646 Amazing flight envelope Chapter 646 Amazing Flight Envelope ?Song Shangcai was not too arrogant just now. After obtaining permission, he performed a set of flying maneuvers according to his own ideas that were not overloaded but could fully utilize all the control elements of the aircraft. ?It only took about ten minutes to understand the operating characteristics of this aircraft. ?Although it is not as perfect as the flight control, it is definitely no problem to carry out normal test flight subjects according to the pre-takeoff plan. Report to the command center and flight testing can begin. The calm voice on the radio and the return to normal flight path on the radar made everyone here breathe a sigh of relief. "receive!" ??The commander sitting in front of the radar display simply answered with two words. The test subjects of this flight had been memorized by the test pilot before takeoff, and the key route data of several core items had been entered into the flight computer, so there was no need to report every movement to the flight as before. Check on the ground. Therefore, while reporting the situation just now, Song Shangcai had already moved the throttle lever to a relatively low position and began to test the flight boundaries of the engine on the left little by little. Of course, he still understands the principle of gradual progress. Naturally, it is impossible to measure data such as large sideslip angle and large angle of attack during the first flight. The response from the tower came over the radio. ?According to calculations, the light oil brought should be enough to complete the test subjects, but if everything can be calculated accurately, there will be no need for a test flight, so you still have to be careful where you should be careful in the sky. ??However, judging from the status of this test flight, Song Shangcai is basically certain that the guaranteed engine limits the upper limit of this aircraft... ??And judging from the current results, with the current status of this aircraft''s single-engine turbofan 10, it is likely that the real limit cannot be measured - For the first flight, the project is mainly shallow and comprehensive. ? This time, Song Shangcai was obviously more familiar with the road. He completed the same subjects as in the 6000 meters in almost half the time compared to before. Received, pay attention to fuel consumption. Soon, the aircraft jumped to the second test altitude of 8,000 meters. So the plane quickly entered the subsequent test subjects under his deliberate control. You must know that AL31F is known for its high adaptability and tolerance, and this turbofan 10 even performs better in this regard... ??It was still just a routine report, so while speaking, he had already pulled back the control stick to let the plane raise its nose and start climbing. ?This way, if something happens to the test engine in the sky, it will not lose all power and electricity, and the aircraft can be brought back. Report to the command center that the 6,000-meter altitude test has been completed and is ready to climb to the next test altitude. The reason why we want to retain the AL31F on the right is originally to serve as a guarantee. Soon, Song Shangcai in the cabin felt from the tachometer numbers that when the air intake state was damaged, the pointer on the left side was obviously more stable than the right side. He still felt a little pity in his heart. At an altitude of 6,000 meters, whether it is supersonic or subsonic, there is actually nothing easy to measure in level flight. It mainly depends on how much performance can be maintained under some practical working conditions. Then naturally its 8,000 meters, 10,000 meters We have to wait until both engines are replaced with new models... This is also a common practice in various countries when testing new engines. The theoretical maximum ceiling of the J-11 is around 23,000 meters, but the turbofan is in principle inferior to the turbojet in a high-altitude environment. Therefore, the maximum ceiling of the second-generation aircraft is basically one that can actually fly and has practical significance, while the third-generation aircraft The maximum ceiling is relatively unrealistic, especially for the central lifting body type design. So, according to the plan, this test flight will only proceed up to the practical ceiling, that is, it will be terminated at 18,000 meters. but. As mentioned above, if everything could be calculated accurately, there would be no need for test flights. ??When Song Shangcai flew No. 1010 to an altitude of 16,000 meters, he discovered that the plane, which had become more and more comfortable in his hands, once again failed to obey his orders... And it''s much more serious than it was at the beginning. ?Maintaining level flight is not stressful, but as long as you make a slightly larger movement, the aircraft will enter various strange postures. ?Although it can be corrected later, this situation is obviously not suitable to continue... So he immediately switched back to the original safe mode. ? ? Disabling safe mode even requires entering a string of passwords, but switching back only requires pressing a key. The aircraft''s attitude quickly returned to normal. Song Shangcai discovered that after restarting the integrated flight thrust control, the speed of the left engine suddenly dropped by nearly one-third from before... In other words, at an altitude of 16,000 meters, the thrust of the left turbofan 10 is almost one-third higher than that of the other engine at the same throttle opening... "The command center, the 16,000-meter altitude envelope cannot be tested. It is currently judged that the thrust difference between the engines on both sides is too large." After barely suppressing the shock in his heart, he took a deep breath and said on the radio. During the test flight, no one can tell what will happen in the next second, so as long as the verification aircraft or prototype leaves the ground, the test pilot is the biggest. Therefore, neither Chang Haonan nor He Ming could or would interfere with Song Shangcai''s decision. Let alone the flight controller. Received, ready to return. ??Although the original test subjects are still at two altitudes, as the first lift-off test of the new aircraft, it has obviously overfulfilled the task. Furthermore, the failure to complete those two heights was not because the engine was not good, but because it was too powerful... ?After a burst of cheers, a technician in charge of archival paperwork quietly approached Chang Haonan: Mr. Chang, how should I write this test flight log? The latter was stunned for a moment and immediately understood what the other party meant. In any case, this is considered an unexpected abort of a test flight. Logically speaking, if a problem is discovered, a follow-up fault analysis meeting will be held. But the situation this time... is obviously quite different from before. Just write it truthfully, but it doesnt have to be so rigid. After thinking for a moment, Chang Haonan replied: Just state it after the situation and say that the reason for the suspension is that the performance of the test engine is too strong and it is difficult to maintain the balance of the demonstrator. ?There is a sense of dj vu when you smash a backboard in college and then say you can compensate, but the school must notify the criticism and publicize it for a month. ?The other party understood immediately, nodded, and said no more words. ??Although the test flight just now took a long time, it actually stayed in the airspace around Shengjing and didn''t fly far, so it was actually fast to return home. Therefore, except for the necessary flight controllers, the rest quickly left the control center and prepared to greet the triumphant pilots as usual. Luo Shida was originally following at the back, but when he saw He Ming not far away, he quickly stepped forward and came to the latter''s side: Im talking about Xiao He, Comrade Haonan definitely looks younger than 40. When this project is completed, he will probably become the youngest academician in our country, right? "Well" ?Hearing that the first half of this statement was outrageous, but the second half was somewhat reasonable, He Ming was a little confused as to where to start. After a while he replied: Mr. Chang...I guess he will definitely be the youngest academician in our country. But he is...only 25 years old now. After completing the entire turbofan 10, he will definitely not be able to exceed 30..." ? He ??originally wanted to say that academicians under 40 years old were still possible, but those under 30 years old were too outrageous. ??But the things related to Chang Haonan in the past two years were already outrageous, including this one, so he suppressed his firm words again. ? And next to him, Luo Shida suddenly felt that something was not right Chang Haonan has been wearing old-fashioned work clothes these days, and he doesn''t care much about trimming, so he always thinks that the other person is a young talent in his mid-thirties but with a young appearance. It turns out that I am only twenty-five this year, so I am still considered a young talent... ?That ten years ago was fifteen years old... Obviously, there seems to be something wrong with his speculation just now. Comrade Haonan is twenty-five this year...so he was not responsible for the current version of the Turbofan 10 from the beginning? Luo Shida asked with a strange expression. He Ming shook his head directly: How is it possible? It was from the beginning. Luo Shida was immediately shocked: Then he was just a kid when he first took charge of the project? "Two and a half years ago... even if he was twenty-three, he wouldn''t be considered a child, right?" At this time, He Ming''s attention was already on the plane that was continuously lowering in the distance. After answering, he quickened his pace. Leaving Luo Shida alone in the wind. Its really only two and a half years (End of this chapter) Chapter 647 flanker evolution Chapter 647 Flanker Evolution First flight test, everything went well. ?The triumphant Song Shangcai was naturally welcomed as a hero. After all, no matter how much effort designers put in on paper, it is the test pilots who ultimately bear the huge risks on the front line. The heads of the WS-10 and J-11WS projects took turns to hug him. ?However, when it was Chang Haonan''s turn, Song Shangcai, who was still holding a bouquet of flowers in his arms, did not leave immediately after the usual greetings, but said: Mr. Chang, after climbing to 16,000 meters just now, it was really difficult to control the aircraft. It was barely able to fly levelly. As long as I made a slight movement, the nose of the aircraft was completely out of control..." Although generally speaking, no matter what decision a test pilot makes in the sky, he will not be questioned, but after all, he only completed half of the test mission due to his own reasons, so he felt that it was necessary to explain the situation a little bit. Chang Haonan''s mentality at this time is quite good. After all, Turbofan 10 is not just a single project, but the key to breaking the situation. ? The subsequent domestically produced and upgraded J-11B, as well as the new J-10 that has been completely changed and reborn, all need this model as power. No wonder the test pilots responded that it was difficult to control the aircraft at an altitude of 16,000 meters. It doesnt matter, test flight is inherently an uncertain process, and the plan was made to break it. ?From a qualitative point of view, the performance of the turbofan 10 on the aircraft is almost exactly the same as the simulation test results of the high-altitude platform. Its a pity that the J-8C has only been a Xiaotiantian for two years now. Im afraid it will become Mrs. Niu in another two years... "At 16,000 meters, 1.4 times the speed of sound, the thrust has dropped from 12.5 tons to about 10.7 tons, while the thrust of the turbofan 10 has only dropped from 14 tons to 13.5 tons, a difference of 25%, and the automatic The trimming system is turned off, and it is purely controlled by hand. Being able to fly stably and level is considered a bold move for an expert..." One flight to meet the requirements of three project teams. The combination of digital fly-by-wire and flight-propulsion integrated technology will be the standard configuration of future three-and-a-half-generation fighter jets. Therefore, this J-11WS, while serving as a turbofan 10 demonstrator, is actually responsible for the verification task of the flight control system. After a simple lunch, the test flight data obtained from the flight recorder was imported into the computer. So he waved his hand very simply: ?Chang Haonan''s joke caused a burst of laughter around him. The technicians of Factory 112 towed the aircraft back to the final assembly workshop to conduct structural inspection after the first flight to confirm that the aircraft did not suffer any invisible damage. Including Song Shangcai, they were also obviously relaxed. ??The flight test is now going well. Although there are still many subjects that need to be completed in the follow-up, we can already look forward to a new round of upgrades of the Chinese Air Force''s main battle equipment. The engineer responsible for writing flight control programs at Institute 601, together with Chang Haonan and others, are waiting to obtain test flight data and analyze and improve possible problems - Furthermore, the fundamental reason why this test flight was not completed is that the performance of our engine is too good, and it is not a shameful thing. If you have the opportunity to write a memoir or something in the future, remember to focus on describing this matter. In fact, at an altitude of 14,000 meters, the thrust data of the AL31F began to decline significantly. Liu Yongquan, who has been working as Chang Haonans deputy, pointed at the thrust curve on the curtain with a pen: ?However, quantitatively speaking, after the engine change, the performance of the J-11''s inlet did exceed Chang Haonan''s expectations, so that at high altitudes and subsonic speeds, the thrust performance of the turbofan 10 was even better than expected. It can be said that the price/performance ratio is excellent. After all, it was not lunch time yet, so after a brief welcoming ceremony, everyone quickly got back to work. "Further back, after turning off the afterburner and ending the test state at the same time, the gap between the two engines in the intermediate thrust state is even greater. Therefore, under the automatic operation of the flight control system, the turbofan 10 passes by about 30%. The rotation speed achieves a thrust balance with the right engine, which is also close to the situation reported by the test pilot comrade. " ?Following this, Liu Gaozhuo, deputy commander-in-chief of Project 11, who was responsible for the design of the flight control system, changed to another slide: The data recorded by the flight control system also shows that when the pilots action of adjusting the throttle opening is 0, the average time for turbofan 10 to start responding is 0.53 seconds, while the AL31F is 0.97 seconds. Furthermore, in terms of thrust adjustment speed, the former is 55% faster on average than the latter. In other words, it only takes half the time of the latter to complete the entire thrust change process. "However, it is worth noting that the advantage of the turbofan 10 over the AL31F in terms of thrust response is that the greater the speed and altitude, the more obvious it is, and it is more obvious when pushing the throttle than when closing the throttle. If it is in the low-to-medium speed section below 6,000 meters, even It may be overtaken by the latter. Of course, this will not be determined until we conduct mid- and low-altitude tests in no-mans land. At this time, Chang Haonan took up the topic: "This is normal and has little to do with the flight control system. In order to reduce the structural complexity of the turbofan 10, the ejection nozzle itself has a weaker adjustment ability at low altitude and low speed than the convergent expansion type. It''s hard to give up. Well." As for the remaining conclusions, let me briefly summarize them... ?After briefly summarizing the results of the first test flight, he paused for a moment and then talked about another topic: "According to the progress of the current plan, after the Spring Festival, you can start using a double -hair turbofan 10 flight test, and complete the bags that cannot be done in a single shot." Within half a year, two models of turbofan 10 have been supplied to two models of third-generation aircraft in small batch trial production. I wonder where the J-11s upgrade progress is at Mr. Lius side? ??If you were to tell others that it only takes one year for an aero engine to go from bench testing to small batch trial production, no one would take it seriously. But since these words came from Chang Haonans mouth, there is no reason why everyone should not pay attention to them. So Liu Gaozhuo, who was sitting opposite, replied with a serious face: "Together with the engineers from Sukhoi, we increased the use of composite materials in the skin part. While reducing the empty weight, we also allocated part of the weight to the structural parts. Combined with a more detailed flight control system, it was basically relieved. The overload usage limit of the aircraft in a specific speed range. "A set of heavy-duty hardpoints have been added to the inner side of the wing, increasing the total number of pylons to 12. However, the load-bearing capacity of these two hardpoints is currently only 2,000kg, which is still not as good as the two unlimited weights located on the belly of the fuselage. Hang on..." In addition, by dynamically adjusting the sequence and distribution of fuel during flight, effective control of the aircrafts center of gravity is achieved to a certain extent, and the flow of the fuel cooling system in the nose part is also increased. Although the effective diameter of the aircraft nose is reduced from 1000mm to 930mm, the heat dissipation power is increased by nearly 200%. In the future, there will be sufficient conditions to install higher-performance flat-panel slot antennas and even electronically scanned antenna radars..." ?Chang Haonan listened to the other party''s introduction and was quite satisfied with it. The improvement direction mentioned by Liu Gaozhuo is basically a combination of the previous J-11B and the Su-30MKK. It can be regarded as the optimal solution that combines the advantages of China and Damao under the current technical conditions. Then...when can we expect to start producing this deeply improved model? ??The person who answered this time was Yao Mengna, who has been stationed at Factory 112 for nearly two years: As far as the aircraft itself is concerned, the only obstacle currently is that the frame structure of the rear part of the new fuselage has been changed from a tailor-welded process to an integrated forging process, so it cannot be manufactured until the 70,000-ton die forging press is put into production. Of course, that project is yours, so efficiency shouldnt be a problem. When speaking of this, almost all eyes in the conference room focused on Chang Haonan for a moment One person is responsible for two national key models at the same time... In short, its outrageous. ?Yao Mengna also took the opportunity to stare at Chang Haonan for a while, but she quickly continued her previous answer: "However, according to Liming''s production plan, their small batch trial production rate is about 16-24 engines per year. Considering that the J-10 after the revised plan must use a turbofan 10 to propel it, the quota that can be left for us is definitely Its not enough. So, taking into account the increasingly tense pace of military struggle, our idea is to wait until the die forging press is put into production and then start small batch production of a fully upgraded turbofan 10 engine, a new airframe, 1493 radar, and a centralized flight computer. And the new model J-11B/J-11BS with digital fly-by-wire flight control, the output depends on the supply of new engines. "At the same time, we will continue to produce 1-2 batches, that is, 24-48 limited-edition models that will only be upgraded with new radars and semi-glass cockpits, and the rest will remain unchanged. They are currently tentatively called J-11AM and J-11ASM. Allow the Air Force to expand its third-generation aircraft fleet as soon as possible to ensure immediate combat capability in the next two to three years. After a few years of waiting until the production efficiency of turbofan 10 has increased to a sufficient level for supply, we can smoothly transition to full-scale production of the new and improved model After introducing the production plan, Yao Mengna raised her head again and looked at Chang Haonan, pushing up the round-framed glasses on the bridge of her nose: How about this plan? It is naturally very good. ?Chang Haonan thought in his heart. Given the current conditions, this is basically the most stable production plan. The die forging press my plan is to use it as a National Day gift project. So far everything is going well, so it will probably be put into production in the second half of this year. This sentence can be regarded as a reassurance for Factory 112. After all, the limited improvement model is just a stopgap measure. The one that can really compete with the J-10 for the position of the main model of the Air Force has to be the serious J-11B. As for the production efficiency of turbofan 10 ?This problem also gave him a headache. The production speed of the turbofan 10 is restricted by the three major components at the hot endturbine disk, turbine blades and combustion chamber wall. Mainly in order to improve the active cooling efficiency, special-shaped air film holes with very complex internal shapes are used. ??The theoretical upper limit of EDM speed is basically what it is now, and the yield rate is frighteningly low. Simply buying new equipment to expand production will not be very effective. After all, China is not so wealthy that it does not care about production losses. ??As for using the system to forcefully open a technology tree for electrochemical processing... Even if the two projects of turbofan 10 and die forging press are completed, I am afraid that the points awarded will not be enough for such a squandering. Therefore, Chang Haonan had no choice but to adopt a delaying strategy: In terms of production efficiency, I will think of a way in the future and try to provide enough engines for the two models as soon as possible... (End of this chapter) Chapter 648 Such a good platform, it’s a pity just to use it against the air Chapter 648: Such a good platform, its a pity to just use it against the air... Although Chang Haonan tried his best to make his tone less certain and did not make any substantive guarantees, the faces of several people participating in Project 11 across from him changed when they heard him say "fight for it". He showed a satisfied smile. ?There is no way, the past resume is too tough. ?After spending less than two years moving the turbofan 10 from the drawings to the verification machine, Chang Haonan has basically gone in the straight direction in terms of project research and development. ?Even though he didnt give an exact timetable at all this time, it was just a piece of cake, but he was still very convincing. Therefore, Liu Gaozhuo immediately took over the conversation: Our countrys air force, at least the current core mission, is homeland defense and competing for air supremacy for ground forces and the navy, so models that favor air superiority are definitely still the focus at the moment. "But we have also held symposiums with leaders of the navy, air force, and front-line pilots before. Basically, everyone agreed that on the premise of ensuring air combat performance, we should also consider giving the J-11 platform the ability to perform more complex tasks. ability." So, if the supply of turbofan 10 can be guaranteed, and it doesnt require too many, and if we can guarantee the supply of more than 40 units to Project 11 every year, then we can also consider using the planned multi-purpose models and special machine platforms. R&D needs to be advanced. "40 units per year... I''m afraid the production capacity will have to continue to climb to meet Mr. Liu''s expectations..." Chang Haonan smiled and looked at Zhong Shihong, deputy general manager of Liming Factory, who was a few seats away. In addition, during the design process, I specially reserved 50kW of power generation capacity for the turbofan 10A after the thrust reduction. When both engines are equipped with generators, it can provide a total power supply of 100kW. I can honestly say , This is prepared for special tactical platforms, and it is also the most irreplaceable advantage of heavy aircraft. "this" ?Liu Gaozhuo certainly understood what Chang Haonan meant, but he still had some concerns. "Especially for the multi-purpose model, the driving function of the back seat of the two-seater trainer is actually removed, and a special weapon control system is installed in the freed space. The changes are not large, and the development cycle should not be very long. But with a full-time weapons controller, you can relatively easily use weapons such as laser guidance, TV guidance, and image matching guidance that require human loop control or complicated settings before launch. This is a very obvious advantage. ?In today''s 1999, China still has hundreds of J-6s in service, and the J-7 is the "main" and "new" fighter. The advantages of single-engine aircraft are even greater. ??It can only be regarded as a trump card, not the main force at all. Although the combat effectiveness will definitely be stronger than that of a single-engine medium-sized aircraft, it is difficult to say that one can defeat them both. With limited aviation supply capacity, using two engines for one aircraft is really resource intensive. Whats more, now is the time when there is an urgent need to increase the paper quantity of third-generation machines. Even though Chang Haonan seems to have worked on a lot of new gadgets in the past two years, even the J-8C, which was the first to produce results, has been equipped with less than 50 aircraft so far. This, for the Air Force and the aviation industry, is already a "grand occasion" that was unimaginable in the past 20 or 30 years. In such a limited quantity, two models are needed. But Mr. Liu doesnt have to worry too much about the production capacity issue. Although the air superiority model also has a weapons bus and can perform these tasks, it is still a bit insufficient to rely solely on a multi-function display on the pilots operating panel. After relieving the Liming Factory a little bit of pressure, Chang Haonan changed the subject again: Multi-purpose models and special aircraft platforms are available. If you currently have sufficient technical capabilities and manpower, freeing up the production capacity of 2-3 mass-produced aircraft for research and development will definitely not be a loss in the long run. So, no wonder he and He Ming were nervous just now This is the bad thing about twin-engine aircraft. The latter also nodded with a wry smile. So, at this moment, even if Liu Gaozhuo uses his imagination to the sky, he only thinks that the People''s Liberation Army may equip two to three hundred third-generation aircraft in the future. ?Of course its only on a first-come, first-served basis. This is also one of the reasons why Factory 112 plans to produce some limited improved versions first. After all, equipment has its own inertia. As long as an army uses heavy-duty aircraft, unless there is no choice later, it will generally continue its past habits when it is updated in the future. If you occupy the pit position now, you won''t lose anything. Looking at the troubled Liu Gaozhuo, Chang Haonan could probably guess the other person''s worries. From the perspective of a reborn person, this is naturally unfounded. In the future, the Chinese naval and air force aviation forces will replace all the more than 2,000 tactical aircraft in their hands with third- and fourth-generation aircraft. The space for replacement is extremely abundant, and it is not inferior to the efforts of the past few years. But this kind of thing is not a project after all, and even if you say it, others may not really believe it. So the easiest way is to directly create a sense of crisis. So, Chang Haonan cleared his throat and slowly said: Actually...Project No. 10 is currently changing in this direction. You must have heard that 611 is planning to modify the overall design of the aircraft to meet possible multi-functional needs in the future. Even medium-sized aircraft are working hard in this direction, so Project 11 has obviously greater potential in multi-purpose, so we cant lag behind others..." ?Chang Haonan is now very skilled at this skill. When he was in Chengdu, he used the J-11''s advantage in development potential to get the 611 Institute to accept the extremely large improvement plan. Now it''s just the other way around. What does it mean to eat two fish for one?jpg I have indeed heard about the changes to the No. 10 Project... Although the method of stimulating generals is old-fashioned, it is useful. ??Liu Gaozhuo''s inner balance, which was still reeling, suddenly tilted: Then we will try to confirm the specific needs with the navy and air force before the year, and then start the project as soon as possible. Its better to be as proactive as possible. ?Chang Haonan started to come up with ideas directly: Users understanding of needs is often lagging behind. In many cases, they are not realized until a long time after the needs arise. The nature of the defense industry is quite special. In many cases, if the time window is missed, it will be difficult to wait for the next one. So, its best to make predictions and seize opportunities in advance. At the end of the 1990s, the relationship between the aviation industry system that manufactured aircraft and the aviation force that used aircraft was relatively complicated. Before this, the army basically had to use whatever aircraft China built. There is no choice at all. By the time before Chang Haonan was reborn, the aviation industry could produce whatever aircraft the military wanted. Now is exactly the transitional stage in the middle. There is a choice, but the range of choices is still relatively narrow. So many things are discussed between the two sides. Objectively speaking, the navy and air forces demand for multi-purpose air power, or tactical air strike power, was actually created after the millennium due to renewed tensions. The second batch of Su-30MKK of the Air Force and the Su-30MK2 of the Navy in the previous life were all introduced under this background. So, now that the conditions are in place, it is better to prepare early. (End of this chapter) Chapter 649 I, Ph.D., graduated in two years Chapter 649: I, PhD, graduated in two years The Spring Festival of 1999 came very late, not until mid-February. According to the previously planned schedule, Chang Haonan completed all single-shot test subjects before that time. Of course, after adjustment. Approximately 15% of the preset subjects were moved to the back, waiting for the second turbofan 10 to be installed. The power layout of the J-11 allows it to complete an engine replacement in a relatively short period of time. However, since replacing the AL31F with a turbofan 10 also involves changes to the internal pipelines of the fuselage and adjustments to flight control parameters, the efficiency cannot be that fast. In any case, we have to wait until after the new year. However, for the members of the Turbofan 10 project team, this can be considered a good thing. After all, following Chang Haonan in doing projects in this model, although the progress is indeed surprisingly fast, it is definitely overwhelming for other colleagues, especially the heads of those subsystems. ?This year and a half of continuous work may not seem like a long time, but the fatigue caused by the extremely high intensity of work is higher than before when I worked for three or four consecutive years. ?Chang Haonan himself knows this. So I just took this opportunity to give everyone an annual holiday. Ive calculated that if we hurry up now, we should still have time to submit the national defense report and thesis in March. Moreover, for graduate students or doctoral students in classified projects, the graduation qualification review will be conducted separately, and those who are not stuck in time will not Then die." ??However, this time, in addition to the usual two people Chang Haonan and Zhu Yadan, they also brought Yao Mengna, who was also preparing to leave Shengjing. It was originally a project as a National Day gift, and the current progress is faster than expected, and there is no rush for a couple of weeks. ?Chang Haonan counted the time and realized that Yao Mengna was indeed in the fifth year of her Ph.D. I did think about graduating in March before, but then the J-11WS project was a bit tight, so I focused all my energy on that. Now... I just want to take a good annual leave first. Over the past two years, she thought she had reached her limit. He himself was preparing to return to the capital after sorting out and confirming that he had saved all the test flight data for more than a month. Chang Haonan said curiously: After the initial novelty passed, Yao Mengna looked at Chang Haonan who was resting on the seat next to him, and suddenly said: Speaking of which, junior brother, I should graduate this summer. It can only be said that there is a gap between the limit and the limit. The plane took off from Beiling Airport as usual and arrived at Xijiao Airport. ?In a situation like hers, it is naturally impossible to delay the completion of the project. The same applies to the die forging press. She had known about Chang Haonan''s ability to get on a special plane before, but when she actually got on it, she felt completely different from just watching. Yao Mengna shook her head: But the distance between the two is getting farther and farther... Its not less than three months "Speaking of which...don''t you choose to graduate in the spring?" In this informal setting, she was still used to the way they were called when they first met. Thats true. ?As someone who has graduated once, Chang Haonan also knows that the reason why most people dont choose Chundu is basically the same as Yao Mengna. It feels really bad to be the only one writing a big thesis while everyone else is celebrating the New Year. What are your plans after graduation, senior sister? Generally, for graduate students who have done confidential projects, as long as they sign a confidentiality agreement, it will not have much impact on their employment choices. But the projects he and Yao Mengna participated in were obviously not general confidential projects, so there were certain restrictions on their graduation destinations. This was already known to the two of them before they first participated in the August 3rd Project.?????However, limitations are limitations, and there are still choices to be made. "I haven''t thought about it yet, so... I just want to talk to you." Hearing this question, Yao Mengna showed a somewhat troubled expression on her face: Basically all the factories in the aviation industry responsible for mainframe production and R&D have now offered me positions. The conditions are similar. They all start as associate senior researchers. However, there are so many options, which makes me a little confused. "In addition, if I want to stay in school, whether it is scientific research results or teachers, there will definitely be no problem, but I may have to start as a lecturer, and the salary will be worse than that in an enterprise, but the advantage is that I can work like Like the previous two years, I had a higher degree of freedom and had the opportunity to participate in projects with different systems..." Obviously, too many offers hit her head, making her have trouble choosing. Or, at least, self-perceived difficulty in choosing. Because from the perspective of Chang Haonan, an outsider, what Yao Mengna just said was actually clearly leaning towards the latter option. Just needs someone to convince her. Furthermore, from a practical perspective, it is indeed better to stay in school. In addition, Chang Haonan still has some selfish motives. So, after thinking for a while, he answered: If you go to the aviation industry, then you have spent most of your time in Factory 112 in the past few years, so you will most likely choose Shengjing, which is more familiar with the situation. "As for staying in school...as you said, the degree of freedom will be higher, and..." Speaking of this, Chang Haonan straightened the back of his seat and turned to look at Yao Mengna on the other side of the aisle: And after I graduate, I should set up a joint laboratory with Beijing Airlines in the name of Torch Group. If you stay in school, you are welcome to join then. This matter is something Chang Haonan has been thinking about for a long time. If the Torch Group is to maintain its relatively lean size, much of the work cannot be performed by the group itself. But if it is completely left to outsiders, it will be difficult for him to rest assured. ?So, setting up a school-enterprise joint laboratory and then serving as the laboratory director yourself has become a safer middle choice. Hearing Chang Haonan''s answer, Yao Mengna''s eyes also lit up. ??If you can continue to work with your juniors after graduation, there is really nothing to hesitate about. Therefore, she nodded with almost no hesitation: Then its settled. "Before you graduate, I will stay at the school. After your joint laboratory is built, don''t forget to take me in..." Yao Mengna originally wanted to act pitiful, but after thinking about it, she felt it was a bit too pretentious, so she decided not to do it. Chang Haonan was stunned for a moment. ?Then he realized that his doctoral program was only scheduled for two years, and few people should know about it at present. Senior sister, actually...you dont need to wait. Hmm? What do you mean? At this time, Yao Mengna did not realize the seriousness of the matter. Because I am also graduating this summer. ?Yao Mengna directly performed a pupil tremor.jpg "How can you" You didnt just... the year before last... I did just enroll in school the year before last. Chang Haonan nodded: But my PhD is planned to be two years. (End of this chapter) Chapter 650 All the troops who switched to J-8C before regretted it. Chapter 650 All the troops who switched to J-8C regretted it... For a while, the expression on Yao Mengna''s face changed rapidly, turning red and white for a while, which made Chang Haonan a little worried. Senior sister? The latter asked tentatively: "are you OK?" Fortunately, Yao Mengna finally recovered from the red temperature state: "fine" ?She shook her head, leaned back on the chair, turned her face slightly, and looked at her junior brother on the other side of the aisle with the corner of her eye: I justwell, I didnt expect ?Yao Mengna must admit that she is really a little bit defensive. Of course she knew how capable her junior brother was. The chief engineer of major projects in his twenties, the general manager of a state-owned enterprise in his twenties, the winner of the special prize of the National Technology Invention Award in his twenties... ?Those who have gradually matured, such as Lin Shikuan and Liu Yongquan, meet the requirements, but they have already worked in the aviation industry for some years. But these are too far away. ??Xu Yang is also the same. In this way, both of them can graduate in the same year. Laughing to death. A doctor who graduated after five years of study according to the normal training program. The joint laboratory is still under preparation. Once it is actually established, a large number of manpower will be needed immediately. Therefore, it was not until several minutes later that Yao Mengna finally accepted the reality but. My junior brother is going to graduate at the same time as me. As a doctor. ??Whether it is from the perspective of one''s own expertise or organizational relationships, it is unlikely that someone will be transferred to the capital to work for him. Yao Mengna took a long breath and secretly apologized for the narrow-minded thoughts in her mind just now. Then she looked at the ceiling of the aircraft, avoiding Chang Haonan''s gaze: Then I will follow you after graduation... ?Even if you admit from the bottom of your heart that the other person is strong. I''m afraid there aren''t many. After all, the members of this laboratory must not only have good abilities, but also have to ensure that their stance is okay. We became the same level when we were studying for Ph.D. Otherwise, if we follow the normal 3+3 or 3+4 culture cycle... ??Although with his current reputation in the aviation and control fields, it will not be difficult for him to win over some talented people who are attracted by his reputation, but if you really want to know the basics... Besides this emotion, there seems to be a little thought of "my junior brother is really awesome"... I''m afraid that I will become a junior sister. When I was studying for my master''s degree, I was still my senior sister. When people look at things that they have no chance to touch, it is actually difficult to have any real feelings. ? ??Although he has joined the Torch Group, he is from the Institute of Computing Technology after all, and he still has a reputation there. After all, this thing is visible and tangible. ?Chang Haonan immediately took care of everything: Dont worry, I will never treat you badly, senior sister ?She never thought that she would one day become the chief engineer and win the National Science and Technology Award. As long as the senior sister is useful, Chang Haonan cannot treat her badly. ?Yao Mengna saw it all. To say that there is no jealousy at all would be an absolute lie. When you learn that another person can graduate in just two years. By the time I graduate... But she knew very clearly that it must be a long time later. ?Everyone here who has a PhD must know this. It is also difficult to calm down inside. Yao Mengna, who was looking at the sky, was obviously not expecting this kind of answer. After waiting for a long time, she could not hear the follow-up, so she had to turn her eyes to the side again. PhD is different. The thing she is most fortunate about at this moment is that she skipped the master''s degree and went directly to study for a doctoral degree. ? In this way, Yao Mengna, who was born in the same research group and is quite talented, has obviously become the best candidate for the laboratory''s trustworthiness. Thats wonderful. ??It turned out that Chang Haonan had laid down the back of the chair again, closed his eyes and seemed to have fallen asleep... ? ? ? When Chang Haonan woke up again, the plane was already descending. ?Chang Haonan finally felt a little relaxed as he looked at the increasingly larger landscape outside the window. Even if there is a system by his side, he is still a mortal body after all. He just consumes slightly fewer brain cells during the project. He will still be tired when he should be tired. In the past, he either only assisted as a participant, or the project itself was relatively short and fast. In short, it was not difficult to find time to rest after work. But this time, whether it is the turbofan 10 or the heavy-duty die forging press, Chang Haonan is the absolute core of the project, and has not had much rest time since the beginning of last year. ?Especially in the last six months since the bench test, it has been a complete spin in a literal sense. During that most exaggerated period, I wanted to listen to the roar of the aircraft engine every day before I could fall asleep. Speaking of which, I should finally be able to have a good New Year this year A total of two Spring Festivals have passed since he was reborn. Last year, he was not at home at all because he was busy with projects. The year before last, he had only stayed home for a few days when he was called by a phone call to go to Haojing for negotiations. To put it bluntly, he was not even at home yet. I spent a complete New Year with my family. Hearing this emotion, Yao Mengna was about to say something, but this time she was interrupted by Zhu Yadan, who had been pretending to be transparent on the way: "Mr. Chang, if you go back to your hometown during the Chinese New Year... I have to follow you." The moment he finished speaking, even though the latter was well-trained, he also felt a murderous aura coming from the side, so he quickly added another sentence : Otherwise, the Spring Festival would have been chaotic. If you were to travel alone, your superiors would never allow it. Chang Haonan thought it made sense. ?Although he doesn''t like ostentation, he is not a diehard. In the past, when I was less famous, it didnt matter. I just needed to choose a safer means of transportation. Now, I am considered the person in charge of major projects. ? Even though he has always been low-key and focused on confidentiality, this kind of thing can only be prevented from accidental leaks but not deliberate exploration. As the commotion becomes bigger and bigger, personal safety must be paid more and more attention to. ??However, having said that, it doesnt seem to be that way to bring a stranger home all the way to celebrate the New Year. So after thinking for a moment, he simply shook his head: I should stay in the capital this year to celebrate the New Year. After a few days off, Ill take my parents over. As he spoke, there was a violent vibration, and the plane finally landed on the runway of Xijiao Airport. ?There are no commercial flights here at all, so the process after landing is quite fast. Within ten minutes, the three of them had arrived outside the airport. ??This time I haven''t been back to the capital for half a year, so naturally I can''t just leave the car in the parking lot like I did when I was on a short business trip, so someone is here to pick me up. Junior brother, do you want to go back to school? ?Yao Mengna had already recovered her usual feeling at this time and asked Chang Haonan. I already agreed last night that I have to go to the Science and Technology Commission first when I come back. The latter opened the car door, but did not sit in immediately: You can send me to the place first, and then send you back to school. A trace of hesitation flashed in Yao Mengna''s eyes, but it was inconvenient to take a taxi in this place, and it was also really unsafe. In the end, she didn''t show any pretense, nodded, and sat on the other side of the back seat. Commission of Science, Technology and Industry for National Defense, Office of the Director. Xiao Chang, its been a long time since I last saw you. It must have been half a year, right? Ding Gaoheng said as he put the prepared tea directly in front of Chang Haonan, and then he no longer stayed behind the desk, but sat on another vertical sofa next to him. Chang Haonan was originally taking off his scarf and hat, but when he turned around, he found that the old leader had poured all the tea, and he quickly sat down. Yes, in August last year, after digging out those counterfeit Japanese companies, I went to Chengdu, and then went to Chengdu and Shengjing in succession. It has been exactly half a year now. Although you have been away from the capital for the past six months, I have heard news about you almost every day. Speaking of this, Ding Gaoheng changed his usual stern expression, holding the teacup in both hands, his face almost beaming with joy: The new design plan for the J-10 reported by 611 at the end of last year had your name at the beginning, which made the leaders of the aviation department stare straight..." Hearing this, Chang Haonan smiled as expected: I specially increased the internal oil and the number of pylons based on the original design. Although it is still a medium-sized aircraft, it has a lot of potential. It was modified to suit the preferences of the Air Force..." ?In the past life, the Air Force was not very fond of the J-10 at first. To a large extent, it felt that this aircraft was really small. It would be difficult to even take one of the aircraft, let alone the range and bomb load. Now that these two problems have been solved with engines with better performance, they are naturally more popular. Ding Gaoheng listened to Chang Haonans explanation and nodded, then paused briefly and took a sip of tea before continuing: "Shengjing also said that as long as the turbofan 10 is properly supplied, it will be able to provide an improved J-11 with several times higher performance than the current one. I heard that some troops who had previously replaced the J-8C regretted it and thought it would be better to wait a little longer. Two years This made Chang Haonan not know what to say for a while. It can be regarded as some kind of happy trouble. After all, who would have thought that the third-generation aircraft era of China Aviation Industry would come so quickly... ?Originally, the general operation of this kind of replacement between generations is to let the ace units using J-8C give their second-hand mobile phones to friendly troops for use, and then pick up the updated J-11. But now the amount of training for the elite of the Air Force is only about 100 hours per year, and two years is just enough to master the tactics and tactics of the J-8C. ??If it were to be replaced with a new machine at this time, the transition period would be too long. And both armies were affected at the same time. So I can only accept some of the J-8C regiments... In addition, a few days ago, there were two EP3Es from the Misawa base that have been wandering around and were followed by our aviation forces. However, their behavior seemed to be quite honest, and they were operating in public airspace..." "Also, Comrade Xinzhi summarized last year''s results and found that the foreign exchange income of relevant units increased by more than 200%. If nothing unexpected happens this year, Ice Axis Group and Northeast Special Steel will be included in the Equipment Industry Department after the year. The system is under control. Although the export of Chinese industrial products to overseas markets is not particularly smooth, at least a few companies have established a foothold in Europe..." Ding Gaoheng came to see Chang Haonan this time. There was nothing particularly important to do. He just wanted to have a chat after not seeing him for half a year. ?So the two people, who were more than 40 years apart, sat on the sofa, drinking tea and chatting about what had happened in the past six months. ??Even Chang Haonan has heard of many of them for the first time. In fact, under current conditions, facing an opponent of the EP3E level, one can even put the JHD 7 out to engage in real e-sports with the opponent. Its just that its too flamboyant, and its still a little early for China now. I dont know what kind of monster this American guy is trying to do. The situation has only become a little more stable in the past two years... When talking about this matter, Ding Gaoheng couldn''t help but sigh. Actually...its not necessarily a demon. Chang Haonan had already made a guess: I guess it was when they tested the GPS jamming system last year that something abnormal was discovered, but they were not sure, so they sent a plane to investigate. Its also possible... Mainly because it happened to be during Operation Desert Fox, so the comrades involved would naturally be nervous..." Ding Gaoheng nodded, then sighed: The world is not peaceful... (End of this chapter) Chapter 651 The Balkan powder keg is about to explode again Chapter 651 The Balkan powder keg...is about to explode again... ??Hearing Ding Gaoheng mention Operation Desert Fox, Chang Haonan''s expression gradually turned serious, and even the movement of picking up the teacup slowed down It is already mid-February 1999, and the Lunar New Year has passed. Although the timeline has indeed undergone a lot of changes in the past three years, they are generally still limited to the technical and business fields. For example, according to Ding Gaoheng, the above have agreed in principle to the proposal to split the Aviation Industry Corporation into two according to business differences and establish the Aviation Industry Group and the Aviation Power Group respectively. After the meeting in April is passed, the details will begin. matters. De-administration of the head office was originally a basic strategy decided last year. The other companies have already completed their reorganization. Even the Ministry of Electronics Industry has been transformed into an electronic technology group. ?Only the Aviation Industry Corporation of China is left. Because the plan underwent major changes midway and has never been finalized, it has been delayed until now. At the beginning, just like the shipbuilding industry system, the idea of ??splitting the north and the south into the first group and the second group still prevailed. However, as the progress of Turbofan 10 has been advancing rapidly, several other projects have also advanced by leaps and bounds. Even the Haofa Group, which has always been weak in technical level, has built a D336 prototype by assembling large parts. It is planned to be installed in tandem with an imported engine of the same model for trial use on the second prototype of the C808 in the future. ?In this case, the plan submitted by Chang Haonan, Du Yishan, and Liu Zhenxiang naturally came from behind. In fact, after the GPS jamming equipment test is completed, the basic conditions are already in place. But in any case, this impact is currently limited to domestic It has not yet reached the point where it can reverse the general trend of the world. But he has always acted as a pure technician in the past, and now he has to find the right time to change the topic to security issues. ?Of course, the Balkan Peninsula is further away from China than the Persian Gulf, and the current situation is even more out of reach. However, Chang Haonan feels that some of the processes can still be tried to be reversed. It is generally believed that Operation Desert Fox can be regarded as a rehearsal for Operation "Allied Force". So, what should come will definitely come. Operation Desert Fox was an air raid launched by a multinational coalition in the Persian Gulf in December 1998 that lasted for several days. ? And if nothing unexpected happens, there are still about 40 days until NATO officially launches air strikes... After all, he has been preparing for this for almost two years... ?Chang Haonan is concerned about the tactical significance of this operation. So the possibility of completely reversing the outcome of this matter is really not very high. But having said that, although the United States is indeed unreasonable in this matter, it does not mean that Lao Sa is a good person. ?Moreover, for today''s China, even with the help of Chang Haonan''s cheating, it has just been able to protect itself and will not be as bad as the original timeline. Still powerless to deal with things that are too far away from oneself. Lets just start discussing the specific details of the split and thats it ??As a result, before the war of words was over, someone else came up with the results and stepped on his head to dance. There was nothing to argue about. With the installation test of Turbofan 10 a few days ago, the relevant debate has disappeared directly ?The reason why a problem can be discussed must be because there are multiple options that at least appear to have advantages and disadvantages. Goal... Needless to say. To a certain extent, Chang Haonan has extended the life of the Aviation Industry Corporation for another year. So I originally wanted to take advantage of the Chinese New Year to find a suitable opportunity to mention this matter again. ?Unexpectedly, on the first day back, Ding Gaoheng himself accidentally mentioned Operation Desert Fox. ?Then its better to choose a day than to hit it. Xiao Chang? Ding Gaoheng, who was sitting next to him, saw his tea cup in the air and remained silent for a long time. He knew that he must be thinking about something, so he didn''t bother him at first and just poured and drank by himself. ?But after a few minutes, I was really worried that he would drop the cup because he was too absorbed in his thoughts, so he started to scream. Just at this time, Chang Haonan also organized the language in his mind: By the way, Director Ding, you just mentioned EP3E, and I suddenly remembered it. Hearing this sentence, Ding Gaoheng also knew that it meant serious business. He immediately put down the tea cup and his expression suddenly became serious. "The GPS jamming equipment that Researcher Xu and I have been tossing about before should be considered to have fully passed the test now. Whether it is fixed near a strategic location as a key defense, or installed on a vehicle or aircraft as a mobile device, it can fully achieve expectations. Effect." Ding Gaoheng suddenly became interested when he heard this: Then your next step is to prepare After all, although this is not a big project, it is still very helpful for combat units that have become accustomed to the new three-on-one and three-defense skills. Chang Haonan pretended to hesitate for a moment, then sighed and shook his head: "Sigh... When I first came up with the idea, I was actually planning to finalize and mass-produce it and hand it over to the troops, especially the army''s frontline command organization, as a protective umbrella against precision strikes." "But at that time, I didn''t expect that the final product would need a military GPS receiver for signal relay. Judging from the current situation, it is impossible to mass-produce it in a short time. Only those two units can be used. Although the effect is very good, it is not effective. The coverage area is really not enough, so if it is handed over to the army, it will not make much sense..." ?This statement is of course just a foreshadowing, just to make my behavior sound less abrupt. In fact, from the very beginning, this GPS jammer was prepared to deal with NATO "alliance" operations. Chang Haonan naturally knows very well that within a few years, satellite signal interference will become an almost useless technology. ??If it weren''t for the time difference at this point in 1999, there would be no need to personally intervene in such a small project. For his true purpose, two are enough. Ding Gaoheng was not the roundworm in Chang Haonan''s belly, so naturally he didn''t know about these twists and turns, and he also showed a look of regret at the moment. ?However, Chang Haonan was still relieved: "Don''t think so, but any project that is in progress will definitely not be completely meaningless. What''s more, you and Xiao Xu have already built the prototype. It''s just that the conditions are not mature yet. It can be temporarily turned into a technical reserve. , well talk about it later when conditions are met..." ?Chang Haonan performed a complete performance, but the expression on his face was still a bit tangled: After so much effort, it would be a pity if we just turned it into a technical reserve..." Ding Gaoheng wanted to try to persuade him again, but when he heard this tone, he realized that Chang Haonan might have other ideas, so he swallowed his words again and waited for the latter to continue. Sure enough, after a brief pause, Chang Haonan spoke again: Although it is of little significance for military purposes, if placed in some small and key locations, it can still have obvious effects. Ding Gaoheng was confused for a moment: "Although this is the truth, two devices can basically cover a larger building and the courtyard. Basically, it cannot cover the necessary places, and it is useless to cover the unnecessary places... After all, it is a key location There would have been facilities such as anti-aircraft gun emplacements around..." ?What he said certainly makes sense, but after all, his thinking is still not broad enough. Chang Haonan saw that the preparation was almost done, so he stopped going around the bush: "But these two devices have a very big advantage, that is, they do not have any physical damage capabilities. They are completely passive soft-kill devices. As long as the definition is slightly modified, they can be used as civilian devices or even for humanitarian relief. Materials, in this way, even if they are used outside our country, there will be no obstacles..." Ding Gaoheng didnt fully understand it at first, but when he thought of Operation Desert Fox he just mentioned, he instantly felt like he had grasped the clue. You mean that in a war zone... we can also protect our own people..." (End of this chapter) Chapter 652 First, transport the GPS jammer there. Chapter 652: Transport the GPS jammer there first ?Chang Haonans previous wave of temptations was just to get Ding Gaoheng to take the initiative to say this usage. ?Now that the other party has taken the bait, the rest of the matter will naturally be easier to handle. ?However, the scene just now has been played out, and now even if it is purely out of professionalism, it has to start and finish, so he put on a look of shock again: Uhactually what I thought before was to put it on a warship to interfere with others while performing accompanying surveillance missions. ?He said this sentence as a kind of ending, and then changed the topic and got to the point: But if you say so...its not impossible. Anyway, the world has not been peaceful these years, but it wont bloom more. When we find out where the situation is more tense, we can just send it there in the name of logistics supplies. Ding Gaoheng picked up the tea cup again and drank it all in one gulp. At the same time, he looked at Chang Haonan with a somewhat suspicious look. He somewhat suspected that the other party had dug a hole from the beginning and was waiting for him to jump into it, but it was a pity that there was no evidence... If you put it that way, things in the Persian Gulf have basically calmed down now. Ding Gaoheng, who finally decided not to think about it too much, played with the empty tea cup with one hand: With this current posture, anyone with a discerning eye can basically see that the next thing to explode must be the traditional powder keg... "oh?" The situation in the Balkans is more complicated. Most EU countries, on the one hand, hope to launch an operation, but on the other hand, they hope that they, not the Americans, will lead the entire process. Ding Gaoheng hesitated for a moment. ? Judging from the results of the previous life, the Allied Forces operation indeed caused Europe, especially the two traditional powers of Germany and France, to lose completely - ?Chang Haonan has been almost in a semi-closed state for the past six months. It is really not suitable to appear too well-informed, so he had to use his acting skills again: But if what Ding Gaoheng just said is true, it means that Europeans are not completely devoid of their own ideas. Its just that I couldnt show it for some reason. ?However, it is generally believed that this is asking for trouble, or actively inviting the wolf into the house. "Um." Ive heard of several air raids in the past few years. Recently... whats the news? ? Dante Gaohengs answer actually contained some content that he wasnt quite sure about in his previous life. On the other hand, the Americans also hope to take this opportunity to show their muscles to Europe, so as to curb the growing tendency of unity there Several countries have already assembled troops there, mainly the air force. Although similar situations have occurred several times in the past few years, I am afraid there will be a big move this time..." Chang Haonan next to him originally just wanted to make the whole conversation more natural, so he asked the question just now. This eldest brother obviously cant stand it any longer. For example, Europe and the United States are actually bedfellows in this incident. ?Originally, I wanted to consider my words, but after thinking about it, I felt that Chang Haonan was not an outsider anyway, so I spoke directly: ?You have been clamoring for European integration for a long time, but in the end you still want the Americans to settle matters. Moreover, you have not shown any sense of "independence" in the process, and you are completely a follower of the latter. So, Chang Haonan swallowed back the response he had prepared, and after thinking for a while, he spoke again: Ifthere is really chaos over there, will it have a big negative impact on the euro that was just issued? On January 1, 1999, the euro was officially issued. So now we have actually entered the Euro era. ? Its just that there is a lot of mess behind this kind of transnational currency, and it is definitely impossible to get it right in one step. Therefore, it is still in the dual-track system, that is, the euro and each countrys own currency are used in parallel. It will take several years of transition before it will fully replace the latter. "EUR" Hearing this question, Ding Gaoheng frowned, gently put the teacup back on the table, and let Chang Haonan pick up the teapot and fill it up again: "I have almost never been exposed to economics in my life. I dare not guarantee this issue. But from common sense, although Southeast Europe does not use the euro, it is the European powder keg in the traditional sense. If something goes wrong, , Im afraid its not good news for a new currency that has just started to be issued a few months ago Chang Haonan felt that an idea seemed to have popped up in his mind, but it was like a messy ball of thread. He could not find the end of the thread and could not unravel it. One thing is for sure Europeans attitude on this matter does not seem to be as firm as it seems But it seems difficult for both Huaxia and Chang Haonan to take advantage of this. Ding Gaoheng next to him drank another cup of tea, then waved his hand and said to Chang Haonan: These things cannot be decided by us technical people, and objectively speaking, we do not have the strength. Thinking too much will only make ourselves uncomfortable. But given the current situation, its still necessary to transport the two GPS jamming devices you created in advance just in case. Ill report it to you early tomorrow morning Chang Haonan just emotionally felt that there was a huge opportunity looming in front of him. It would be a pity if he couldn''t seize it, but intellectually he also knew that the former was reasonable. The current environment is that the United States is so powerful that it cannot be tough for the time being, so it can save whatever it can. ?So he calmed down a little, and then continued what the other person said: In order to avoid being too sensitive, it is better not to mention the words GPS interference in official documents. We named this thing the Soft Kill Self-Defense Countermeasure System (SKSPCS) to emphasize its passive self-defense attributes. In the late 1990s, such outrageous names were not very popular, so Ding Gaoheng was unprepared and not very focused, so he didn''t remember it for a while: Soft kill At this time, if Chang Haonan repeats it again, it will undoubtedly mean that the other party has a bad memory, so he just ignores this detail calmly: After I go back, I will first ask the 14th Institute of Electrical Engineering to transport one of them to the capital, along with the instructions for use that were written during the previous test. So fully prepared? Ding Gaoheng looked shocked: "Is there even an instruction manual?" There is no way. When this thing was tested, engineers were asked to record the translation algorithm of the interference signal on site. Chang Haonan said as he poured the last bit of tea in the teapot to Ding Gaoheng and himself: But whether it is used by the army or anyone else, they are definitely not professionals in this field, so we can only preset several fixed working modes and try to ensure that everyone who can understand Chinese characters can use it. Thats really good (End of this chapter) Chapter 653 Improved security treatment Chapter 653: Improved security treatment After saying this, the two people sat sideways and didn''t speak again for a while. ?Chang Haonan picked up the teapot and wanted to pour water for the two of them again. Only found that it was empty. Having no choice but to get up and get a thermos bottle from the table a little further away, he filled the teapot again. The huge office fell into a somewhat depressing silence. As Ding Gaoheng just said. They are both technicians after all. What can be done is limited. China is still at a stage where it must hide its capabilities and bide its time. What you can do is limited. Chang Haonan rubbed the edge of the tea cup with his right hand and said: Power is not in the hands of civilized countries. Only this time, it was Chang Haonan who broke the silence first. As for the higher level, everyone can predict the tragedy of the entire country. Since the beginning of the year, relevant departments have been working on this matter. There is nothing I can do to help. Otherwise, if a conflict breaks out and the sea and air are blocked, it will be difficult to figure it out. The two of them drank two more cups of tea in silence. At this point in the late 1990s. In the original timeline, since China was almost completely unprepared for the Allied action, it was not until mid-April that about 200 expatriates were evacuated overland to Romania after going through untold hardships. Enabling compatriots to protect themselves is the result of Chang Haonan''s dedicated efforts in the past two years. Hence the psychological burden and stress is much less. It''s just adding some useless sadness. No matter how bad the situation is today, it cannot be worse than it was in the previous life. Ding Gaoheng nodded and replied: However, because NATOs troop buildup is not public information, we also obtained it through special channels. Therefore, in order to protect the source of intelligence, we cannot take too big actions and can only make insinuations one by one. Unfortunately. Although it is impossible for our official agencies to evacuate to express their attitude, under the current circumstances, should we consider early evacuation of overseas Chinese? ?There is really no point in continuing to talk about this topic. Now that you know the relevant information in advance, you can naturally feel more relaxed. After all, he had already experienced what happened next. Fortunately, the number of Chinese people in the south is not large at present, and the Spring Festival is approaching soon, so it wont be too abrupt to send them back in batches, and we should be able to evacuate them in good order. But if you really cant move, or if you explicitly refuse to come back, we have no choice. ?Chang Haonan is not a holy mother. When things have been done to this point, she has already done her best, and it is unrealistic to force more. What he was more interested in was the special intelligence channels mentioned by Ding Gaoheng: We still have intelligence activities in Europe? Obviously, this is the core reason for being able to know the other partys movements in advance instead of being ignorant like in the past. Ding Gaoheng nodded: "I actually don''t know much about the specific things myself. This falls under the jurisdiction of the General Staff Intelligence Bureau. However, in the past two years, the frequency of information updates there has indeed been much faster than before, especially in the United Kingdom and France. I suspect that some Downing Street may not know about things before we do..." "Although I don''t know exactly how it is done, I estimate that this is largely due to our increasingly closer ties with Europe and, of course, the Russians. Some activities are naturally better than in the past. Easy to carry out. "For example, regarding technology-related information, in the past, only Western countries sent engineers to our companies, which must have been one-way and transparent. Now, because of you, our engineers can also be posted to them. , it will naturally come and go..." Well, after going around and around, we came back to Chang Haonan''s side. ?However, the vast majority of intelligence activities are indeed carried out in a completely open-label manner under the guise of legality. It is an extremely rare operation to create a secret pile like the Cambridge Five or George Blake. So, to say that he has a share of credit in this is not an attempt to redeem himself. After taking a sip of tea to moisten his throat, Ding Gaoheng continued: But there are two sides to this kind of thing. After getting closer to these European countries, you will inevitably have to worry more about some things..." "How to say?" ?Chang Haonan helped the other party fill up the tea again, thinking that he was listening to the story to distract his attention. Otherwise, if you end the conversation now and go home or go to dinner, your mood may be affected for a long time. Actually, its nothing. It happened at the second Xiangzhou Air Show last year. Ding Gaoheng may have felt a little full after drinking. This time he did not go to get the tea cup immediately, but leaned back on the back of the sofa: "Our exhibits this time are actually the same as last time. If I have to mention, there is an extra trainer from Guiyang Aviation Industry 9, and there is also an AC139 helicopter prototype that AgustaWestland worked overtime to produce. But thanks to the huge commotion in the past two years, there are many more customers who want to buy airplanes than there were in 1996..." As the person in charge of the entire aviation manufacturing industry, when talking about the Xiangzhou Air Show, his mood recovered from the slight depression just now: The final results reported by the organizer were that the total transaction volume was higher than that of the first edition. It was nearly 30 times higher..." 30 times! So much? ? Last November, Chang Haonan happened to be so busy in Fucheng that he hit the back of his head. How could he find time to pay attention to the Xiangzhou Air Show, which had few highlights. So when I heard this number, I was shocked and almost spilled the tea in my hand. ??Although the progress is particularly rapid because the starting point is very low, a sudden increase of 30 times is still quite scary no matter how low the starting point is... "yes" Ding Gaoheng had predicted Chang Haonan''s reaction just now. At this moment, he naturally had an expression that said, "You are finally scared one day." He replied with a smile on his face: This is because we took into account the international impact and placed an order. At that time, Argentina wanted to trade minerals and agricultural products for 18 J-7F fighter jets in the form of barter. But you know, the situation there is more complicated, and this kind of arms sales is likely to touch the pain points of the British. So... considering that we currently have a relatively close relationship with the UK, we did not directly agree to the transaction at that time and was stuck in the approval process. As for arms sales, they are rarely purely commercial activities. ?The impact from other levels must be considered. ?For example, in Project 11, Sukhoi required China not to export the Su-27 and its derivatives to third countries in any form. In exchange, the Su-27 upgraded model exported by the Sukhoi Group must meet the conflict avoidance principle if it directly contains technologies jointly developed by both parties within the framework of Project 11. In other words, it cannot be exported to countries with direct conflicts with China. ?For example, the Su-27SM2/Su-30M2 aircraft using the same second-stage upgraded airframe as the J-11B cannot be exported to a major country in South Asia. ?However, the Su-27SM/Su-30MK, which only uses one-stage upgraded airframe, is not affected by this. ?There is no fixed rule for this kind of thing. It purely depends on the relationship between the parties involved and the comparison of national strength. In short, arms sales to Afghanistan are certainly not as important as maintaining relations with Britain. ?However, Chang Haonan quickly thought of a good idea: Actually... it may not be impossible to trade. Anyway, everyone knows, including the British, that the Afghan army bought aircraft just to give an explanation to the country, and it did not really want to regroup and do anything. In the same way, the British may raise concerns or protests, but it is just to give their country an explanation, and it is also not really to prevent us from selling aircraft. Ding Gaoheng nodded, obviously agreeing with Chang Haonan''s analysis. Most countries do not buy weapons for the purpose of fighting. Argentina is naturally one of them. In this case, let the other side let the word out first that they are going to buy FBC1 Flying Leopard fighter-bombers, and then start negotiating with us to stimulate the British. Wait for a while, then take advantage of the situation and change the model of the arms sales from the Flying Leopard to the J-7, and give them an explanation. In this way, we will make money, the Argentines will buy the aircraft, and the British will also gain face. Its a win-win-win situation. ?Chang Haonan''s idea made Ding Gaoheng couldn''t help but smile. Obviously, not only Chinese people, but people all over the world like to compromise in character. So Mr. Lu Xuns roof-lifting theory is indeed useful. I can discuss this idea with the aviation department later. Ding Gaoheng sat up straight again and took the teacup in his hand: But whether they want to do this depends on their judgment. Anyway, 18 second-generation and a half aircraft, the total amount is less than 50 million US dollars. It is not a big order, and it may not be worth such a big deal..." "You are like the biggest deal at this air show. Turkish Aviation Industry is preparing to introduce a complete set of AC139 helicopter-related technologies to produce helicopters on its own. The upfront payment alone is 1.5 billion US dollars, which is 30 times that of a small deal... " The two of them chatted together, almost ignoring the passage of time. By the time all possible topics of conversation had come to an end, it was almost evening. By the way, Xiao Chang. Just when Chang Haonan was about to leave, Ding Gaoheng stood up and called him: "You haven''t lived in the capital before, so there is something I haven''t had time to say." Considering the completion of the turbofan 10 and heavy-duty die forging press projects, your superiors have now raised your security to another level. "ah?" This is something Chang Haonan did not expect: "Then... we don''t need a few more bodyguards, right?" Being closely protected sounds cool, but being restricted everywhere is actually very troublesome. He just got acquainted with one Zhu Yadan, and he really didnt want more people to come. Fortunately, Ding Gaoheng did not mean this: No, having too many personal bodyguards will also affect the normal life of the protected person, so one Xiao Zhu is enough. But given your current situation, it is definitely not appropriate to continue living in the faculty and staff dormitories provided by Beijing Hang University. That place is an open community and almost anyone can enter. Even if you are not afraid, we still have to worry. Chang Haonan thought about it and thought it made sense, so he asked: Director Nading, what do you mean... I have applied for a set of public housing for you according to the standards of the deputy director of the Science and Technology Commission. Ding Gaoheng simply said something shocking: "It''s not far from my house. You should have had an impression when you went to eat last time." There is security in and out of the area over there, so it doesnt matter how strict the personal security is, and we can feel more at ease... (End of this chapter) Chapter 654 The organization has already prepared it for you Chapter 654: The organization has prepared it for you In fact, from the moment he got off the plane after arriving in the capital, and Zhu Yadan repeatedly emphasized that Chang Haonan would not be allowed to go back to his hometown alone for the New Year, the latter had already guessed that his security standards should have been improved. ??Its just that he has been staying in a closed management research institute for the past six months, and there is no need to worry about safety, so he has never felt it Security is both a right and an obligation. It is not something that the protected person doesnt want just because he says he doesnt want it. Including the relationship between Chang Haonan and Zhu Yadan, it is different from the simple superiority and subordinateship between the chief and bodyguards within the army. Although the latter is always referred to as the head, strictly speaking, it is actually a work cooperation that is not subordinate to each other. In other words, Chang Haonan is relatively honest and would never leave the house unless necessary. Otherwise, Zhu Yadan, the "guard", can even veto unnecessary trips of the protected person under certain circumstances. But its a guess. A lot of information cannot be taken home. ?But if you think about it carefully, what the other party just said makes sense. As a result, Ding Gaoheng came directly to the big one. In short, it is quite troublesome. So, after recovering from the brief shock, he did not show any pretense about this kind of thing. He just nodded and thanked: It is quite troublesome to say. Be it rebirth or system, it can improve a person''s ability and knowledge, but it will not affect his cautious, or to put it more bluntly, timid character. Ding Gaoheng waved his hand indifferently: Its troublesome, Director Ding, to worry about this kind of thing. Chang Haonan was already thinking about moving, but when he heard this, he couldn''t help but feel a little worried: Non-compliant housingthen I ?For example, you can''t get through the confidential internal phone line at all, and you have to go all the way to the office if you want to contact anyone. Chang Haonan now lives in an ordinary residence assigned to faculty and staff by the school. It is essentially an ordinary residential area close to the school. ?Chang Haonan originally thought that at best, better arrangements were needed for personal itineraries. Furthermore, Chang Haonan asked himself that he was not a saint. "The main thing is that recently the authorities have been focusing on vacating and converting substandard housing. Although it is impossible to control all of them, there are still people of all ages in the vacant places. There happens to be a place not far from my place. If there is anything going on in the future, Also convenient. ?For example, in the past, it was necessary to report one or two days in advance, but now it is three or four days in advance, and the relevant security units at the destination may also be notified to make preparations. A new residence has been arranged for him... Even if personal safety considerations are put aside, the level of confidentiality is not adequate. After all, I have been engaged in technology for both my life. ?Although I dont take the initiative to grab any treatment, I definitely feel at ease with what others give me. I cant talk about it. The request to improve the security level was directly issued by the superiors. I just found a relatively better condition for you in the maneuverable space. Ding Gaoheng raised his eyebrows. ?Although Chang Haonan did not directly ask the second half of the sentence, he could naturally understand the other party''s concerns and immediately said: "Don''t worry about this. Although you are not of high administrative level, as far as the actual situation is concerned, you are not only the direct person in charge of key national supervision projects, but also the winner of the special science and technology award, and you have the approval documents from above. No matter what, you are in compliance. Its ok, just go and stay there. Chang Haonan''s worry just now was just a momentary thought. Now that he heard Ding Gaoheng''s explanation, he was naturally relieved: ThenIll clean up the old house in the next two days and try to move there as soon as possible before the end of the year? ?His subjective purpose in asking this question is naturally not to rush to live in a big house, but to reduce the pressure on security as soon as possible. ?However, Ding Gaoheng, who was also putting on his coat and getting ready to get off work, was stunned and stopped buttoning his buttons: You probably havent lived in the Beijing Airlines unit for long, right? And most of the time youre out on business trips. Is there anything important thats worth moving? Chang Haonan shook his head: Of course I dont have any important things, just the personal belongings that I left in the dormitory before, but after all, I have to move some bedding and other things over if I have to change my residence... ?Seeing his unfamiliar look, Ding Gaoheng shook his head helplessly and resumed the movements of his hands: "That is a public housing set aside according to the standards of the deputy director of the Science and Technology Commission. Although the decoration and furniture are a bit plain according to current standards, it is not enough for you to bring your own luggage to move in. Otherwise, those of us at the central government Those in direct units are fine, but those local leaders who are often transferred across provinces and cities still have to move to death..." After making some tongue-in-cheek remarks, he paused for a moment, then continued: "If you don''t have any important personal items, you can just go through the formalities later and get the keys. If you don''t have anything important, you can ask the General Affairs Office to send two people to help you get it." "But in your case It''s quite special. I guess...if you don''t take the initiative to mention it, Beijing Airlines will not take back the old house just because you have a new residence. After all, it is impossible to give you property rights in this official housing, so it is okay to leave it there for the time being. fine" In his last life, Chang Haonan didn''t even catch up with the era of free housing allocation. After his rebirth, he only got a single apartment from the school. He didn''t even have the property rights for the time being. He had jumped up through the ranks and had no chance at all. The middle position slowly understands these. Its normal if you dont know. So I dont feel any embarrassment at all. While the two were talking, Ding Gaoheng was already dressed and picked up his briefcase from the table next to him: Lets go, we happen to be on the way, lets go get the key for you first Chang Haonan had been to the other partys house for dinner before, but at that time he was just a guest, so he didnt pay much attention to the specific address at that time. ??I never expected that I would live nearby so soon... The two of them left the office and went downstairs one after another. ??Then naturally they got into Ding Gaoheng''s car together. At Ding Gaoheng''s level, the environment around his residence is naturally quite good. On the way in, Chang Haonan even saw two sentries inside and outside. No wonder I said before that if I lived here, the pressure on personal security would be much less. ?Shortly after passing the second checkpoint, the car slowly stopped in front of a seemingly inconspicuous two-story building. Its really too late today. Ill ask Xiao Zhu to go there tomorrow and get the pass here, otherwise your car will have to check your ID every time you go in, which is quite troublesome. Ding Gaoheng in the passenger seat turned his head slightly and said to Chang Haonan behind the driver - Although the former has a technical background, he is an active-duty soldier with a rank after all. The seating arrangement habits of military vehicles are very different from those in local areas. Generally, the co-pilot is regarded as the leader (the officer leading the vehicle). "good." ?Chang Haonan nodded. Before getting out of the car, he took a deep breath to calm down. ?There is no way, as a layman, it would be absolutely false to say that I am not a little excited about the townhouse with beautiful surroundings in front of me. Ding Gaoheng looked normal. He turned around and asked Chang Haonan to follow him, and then walked all the way to the door. Insert the key and open the door. The two walked into the living room. As the former said, the basic furniture and daily necessities were ready. Ding Gaoheng put his briefcase aside, then raised his head and looked around: According to the standards of the deputy director of the Science and Technology Commission, the housing area should be 190 square meters. This small second-floor apartment should be a little smaller, but the location is good, and it faces north and south, so the lighting is good. Chang Haonan, who was following behind, did not overly conceal his joy: Its really good. The decoration style is also the simple type that I like. Its practical and not complicated. He has not even fully recovered from the shock when he first walked in: The area is not a problem. I usually live alone. Even if I include the guards, such a big house feels a bit empty..." "so." Ding Gaoheng walked back and forth in the living room twice, and then sat directly on the sofa: You can also start thinking about personal issues. Cough cough cough Chang Haonan almost choked on his saliva at his sudden words. Yu Zi, you graduate this summer and should be in your mid-twenties. Its the right time to consider starting a family. And as you just said, its not suitable for one person to live in such a big house. "Yu Gong...Although there are no explicit regulations in this regard, it will be beneficial to your future development to start a family and start a business stably, whether you want to stay on the academic route or switch to administration like me." (End of this chapter) Chapter 655 Prepare to poach people across borders! Chapter 655: Prepare to poach people across borders! "This...Director Ding, I haven''t..." If we say that Chang Haonan is somewhat mentally prepared for other topics this afternoon. ?The sudden wave of official pressure to get married really made him a bit overwhelmed... I know you are still young, so I didnt say how long it would take you to solve the problem. ?Just as Chang Haonan was stumbling to organize his words, Ding Gaoheng smiled and waved his hand: Just to remind you, in addition to working on projects, you can also pay a little attention to this aspect. Hearing this, the former finally breathed a sigh of relief. ?However, before he could finish breathing, Ding Gaoheng added another sentence: Its a pity that my granddaughter is too young, otherwise it wouldnt be impossible to consider ??So Chang Haonan''s CPU was a little weak again. ?This kind of proposition seems to be wrong no matter how you answer it... Is it possible to say that I can wait a few more years? Fortunately, Ding Gaoheng did not worry too much about his granddaughter: Anyway, in your situation, you dont need to worry too much. You have a lot of freedom of choice. As long as the background is clean and the person is reliable, its up to you to focus on your own feelings and preferences. "Speaking of which, I think that Researcher Xu who worked on the project with you before is pretty good. Although he studied abroad, his personal performance and family background are very good. He is a native of the capital. His father works in the labor union as a casualty, and his mother and daughter-in-law are very good. He is also a middle school teacher..." The only thing is that Im a few years older than you, but then again, a female college student holds gold bricks Obviously, he did not bring up this topic on a whim today, but was prepared. ??An old comrade in his sixties, who has no martial ethics, came to sneak attack on a young man in his twenties just because he was a veteran. Otherwise, how could we have already checked the family composition... Seeing that Ding Gaoheng''s matter was a bit of a coincidence, Chang Haonan quickly expressed his position in order to end this topic: Director Ding, I will definitely pay attention to personal issues, but no matter what, I have to wait until the two big projects at hand are completed. I really dont have the energy now..." ?Seeing his answer, Ding Gaoheng was already a little embarrassed, and Ding Gaoheng had no intention of further embarrassing him: In short, if you still cant find a suitable one, you can also mention it to the organization. Its not difficult to get a wife... When he said this, he obviously had a bit of a joking tone. ?Of course, just because the tone is joking doesnt mean the content is joking. ??Although organizing a wife is just a metaphor, for young talents like Chang Haonan who are a bit outrageous, as long as they are officially transferred to the job after graduation, there will definitely be dedicated manpower and even departments to worry about personal issues... Thinking of this, he couldn''t help but feel a little dizzy. ?In his last life, he felt numb when faced with the urging of two elders in his family to get married, but now this posture... ?At this time, Zhu Yadan, who had been following him on the road but was stopped by two checkpoints to check the car and was delayed for a while, rang the doorbell and relieved Chang Haonan. You must be unprepared for tonight. Lets go to my house for dinner together. Ding Gaoheng stood up, picked up the briefcase next to him again and said to Chang Haonan. Because of the topic just now, the latter was actually a little frightened at this time. After all, that is the opponents home court. What if we face a round of mixed bombing after passing by... But in this situation, he really had no legitimate reason to refuse, so he had no choice but to nod after a moment of hesitation. Happily for him, Ding Gaoheng and his wife did not dwell too much on the issue of starting a family, and the main conversation at the dinner table was serious matters. After all, Ms. Nie is also a well-known expert in precision instruments and computer hardware equipment in my country. She has participated in the research and development of two bombs, one satellite and the Galaxy 2 supercomputer. She has also served as deputy director and consultant of the Science and Technology Commission for a long time. There are actually a lot of common topics between the three of them. By the way, Xiao Chang. Just when Chang Haonan was about to leave, Ding Gaoheng stopped him from behind: "Do you still remember the ''Friendship Plan'' we discussed before?" The former nodded: Of course, remember to cooperate with our reliable businessmen doing business in Ermao, and hire experienced technical personnel from Ermao to work in China in the name of project consultants or similar. ??Although the technological development of China has achieved great strides under the leadership of Chang Haonan, what he can only do on his own is to lead from point to point. ?Although the "point" has made a breakthrough now, if the subsequent "face" wants to follow up, it cannot be said that it is a matter of grasping it. After all, Chang Haonan is just equivalent to clearing the obstacles on the way forward. However, people from all walks of life still need to run the road themselves. But the efficiency of talent training is limited. Even if a technology war like the Turbofan 10 is carried out at the cost of shutting down half of the entire industry, it is impossible to directly produce too many big guys who can do their own thing without the help of Chang Haonan. ?Most people still need to practice on several self-led projects before they can gradually grow up. So, it will definitely be of great benefit if some reliable foreign aid can be introduced in the "bringing up the noodles" step. Ding Gaoheng took out a folder and handed it to Chang Haonan: "The budget for this plan, as well as supporting facilities such as concentrated residential areas, have been partially prepared. As for the backgrounds of those businessmen, we have also checked. There is nothing suspicious. They are just out to make a living. Damn it, so... its time to see if we can get one or two projects to do a preliminary pilot. The latter opened the folder in his hand and found that it contained some things that Wu Yifan and his import and export company had exchanged between Huaxia and Ermao over the past year or so. Technical information on high-power diesel locomotives Space-based synthetic aperture radar Cargo spacecraft automation control software Medium-sized satellite platform Coal collection and deep processing equipment ? Judging from the results alone, it is basically a case of being hungry and throwing away whatever you catch. There is no definite goal or business scope. ?Some of the things here sound very scary, but what they can get is not complete technical information like Project 11 or the C808 passenger plane, but scattered parts. The completeness is not high and can only be used as a reference at most. As for the sources of samples and equipment, they are even more diverse. Chang Haonan even saw in a photo a radio station that clearly looked like it had been removed from a tank, as well as the core of a 3BM25 fin-stabilized sabot-piercing projectile. These things are obviously of little value to Chinas scientific research field. At most, some military fans may like them... ?But this is reasonable. ?The situation of Ermao today is a mess. ??If a few foreign businessmen can classify and plan their businesses clearly, that would be a ghost. Fortunately, the core of the Friendship Project is neither physical objects nor materials, but people. As long as you can get in touch with people, there are objective conditions for poaching. Hence, these bits and pieces obtained by wild means cannot be completely regarded as worthless things. Okay, Ill find time to meet with him in the next two days to learn about the specific situation in Ermao. ?Chang Haonan put away the folder, said goodbye to Ding Gaoheng again, then opened the door and left. (End of this chapter) Chapter 656 Year-end summary and future planning Chapter 656 Year-end summary and future planning ?When Chang Haonan came here just now, he was riding in Ding Gaoheng''s car. Now that he was leaving the latter''s house, he naturally had no means of transportation. ?However, the distance between the two sides is only about one kilometer. In addition, most of the important people living in this area live in this area. The security level is extremely high, so there is no need to worry about any safety issues. ?Hence, there was no need for him to call Zhu Yadan over to pick him up, but he planned to go back directly on Route 11. It should be eaten after a meal. It is almost New Year''s Eve, so the moon is basically only a thin line like a scimitar. Fortunately, there are a lot of street lights around, so walking normally is no problem. ? Chang Haonan took a long breath and looked at the white mist rising slowly in the air with the light in front of him. ?After working continuously for more than half a year, now there is suddenly no work pressing on him, and he even feels a little empty... The result is... Even though my body has become idle, my mind is still thinking about serious things involuntarily. It is now February 1999. For Chang Haonan, the next more important thing, apart from the two projects that basically only need to be completed step by step, is to release the official version of TORCH Multiphysics. ?The software itself has been almost optimized, and it has gained a lot of popularity around the world throughout last year. First, the new machine tool brand jointly established by Torch Group and C.B. Ferrari does have something to offer. ? Relying on far superior processing efficiency and lower operating difficulty than its peers, it has won a number of landmark orders from the automotive, shipbuilding and aviation industries. ?Especially in the Volkswagen Groups bidding, the bidder had almost selected Yamazaki Mazak as the supplier of the compound turning and milling machining center. ? As a result, just before signing the agreement, the NSK bearing fraud case happened, and the subsequent collapse of the credibility of a series of Japanese companies. In fact, Yamazaki Mazak itself has not been exposed to any bad news. It even stated that it can provide the original production testing data of all supply contracts in the past twenty years, and is also willing to cooperate with third-party re-inspections of all previously sold products. It is highly likely that It''s really innocent. But in the public opinion environment at that time, the Volkswagen Group was at the forefront of the storm because one of its suppliers, NTN Group, was exposed for fraud. Even if it knew that Yamazaki Mazak was fine, it would not have been possible to sign the contract due to the impact of public opinion. The result is that the already hopeless Torch-C.B. Ferrari Group is cheaper. ?However, at least so far, when customers purchase this new series of machine tools, they mainly look at the reputation of the Italians. Including the promotion of the new brand, C.B. Ferrari is also the main one, supplemented by Torch Group. So, this incident alone will not give the latter too much fame. At most, people within the machine tool industry are gradually beginning to realize that this Chinese company has amazing capabilities in machine tool structure optimization and digital simulation of machining processes. ??What really made the name TORCMultiphysics spread among the general public was the advertising space that was unintentionally taken from Jinling Automobile. ??The advertising space on the side of the Ferrari F300 racing car''s side box and below the Shell Oil LOGO. The technical achievements of Jinling Ferrari Research Center were finally applied to the F300 racing car before the end of the season. ?Originally, this upgrade, which was carried out at the penultimate race of the season, was only used as a technical verification for the F399 racing car in the second year. It was somewhat similar to the relationship between turbofan 9 and turbofan 10 on Chang Haonan''s side. ??But the effect of the new aerodynamic package exceeded Rory Byrnes initial expectations. ? In the first race after the upgrade, the F300 relied on its extremely unfavorable cornering speed in rainy weather, and after an unprecedented chaotic start, it took the first place with an outrageous result of second place in lapping. For Chang Haonan, who is familiar with "history", it is a pity that there will no longer be the famous scene of Spa F1 tricycle on this timeline. ?At the end of the season, although Schumacher still retired from the race in Japan with a puncture as he had in his previous life and missed out on the individual championship, Ferrari won the 1998 constructor championship a year ahead of schedule. ??As a result, Torch Group, which became a new sponsor and supplier of racing design tools, became popular in the racing circle and even the entire automobile circle. Logically speaking, in this case, the conditions for releasing an official version have already been met. However, the customized version of the supercomputer planned to be released together with the software, namely Sugon 2000T, still has some final finishing work to be completed. So I finally decided to wait until after the year. After all, industrial software will be an unpopular industry even after more than 20 years, and even if it is exported, it will be difficult to attract widespread attention. ??But if supercomputers can be exported to Europe or even the United Stateseven if they are exported in the form of bundled sales, it will definitely be earth-shattering news. In this way, it is entirely possible to reactivate Chinas computer hardware industry before the turn of the millennium. You must know that at this point in time, although the gap between China''s semiconductor industry and the international advanced level is already large, if it can catch up with the round of technological innovation represented by immersion lithography at the beginning of the 21st century, overall it will still be There is much to be done. Even if high-end commercial-grade semiconductors in the consumer electronics field cannot get rid of imports immediately, they can at least ensure the independence of industrial-grade and low-end commercial semiconductors. ?As long as the latter part of the profits is kept in the country, it is equivalent to opening up the hematopoietic cycle of the semiconductor industry itself, instead of relying solely on national financial allocations. As for the back In China, it is not difficult to develop an industry as long as it can make money. I can only say that although the market economy is not omnipotent, it is indeed useful in this case. Chang Haonan suddenly realized when he reached the door of his house. He seemed to be thinking about work again just now. "..." It was a bit difficult. ?Although I was focused on work in my last life, it was not so exaggerated. I was even making New Year''s resolutions while walking on the road. ?Of course he also knows that he is not in the mindset of a worker now, so it is normal for him to be more proactive. ?However, since I came back from my annual vacation, I should still make some adjustments to my life structure. ?Thinking of this, Chang Haonan opened the door to his house, changed his clothes and quickly walked into the living room. After all, he just moved to a new house in the afternoon, so he walked around the living room extra times before finding the white phone connected to the outside line. Then, he picked up the phone and dialed his home number. ?It was not yet ten o''clock in the evening, and considering the winter vacation life that was approaching the Spring Festival, it was obviously not enough time to sleep. After three beeps, the phone was connected, and Zhou Lis familiar voice came from the other side: Hello, who is this? Mom, its me. The moment he heard the voices of his family members, Chang Haonan''s feeling of fatigue subsided a little. Xiaonan? ?Zhou Li was also obviously stunned. After all, Chang Haonan rarely called at this time. ?But he recovered quickly: It should be a holiday for you there soon, Jia Yao went home the day before yesterday Zhou Li''s tone was a little cautious, as if she was afraid of hearing words such as "I won''t go home to celebrate the New Year this year." As a result, Chang Haonan then performed a performance of "whatever you are afraid of will come to you". Mom, during the Chinese New Year this year...its not convenient for me to go back to Liucheng. When she heard this half sentence, Zhou Li almost couldn''t breathe. Fortunately, before she could feel disappointed, Chang Haonan immediately finished the second half of the sentence: So, I was thinking, why dont you come to the capital together and lets celebrate the New Year here. There was silence on the other side of the phone for a moment, and then there was a slightly quieter voice. Apparently it was Zhou Li who was telling Chang Yuanchao and Chang Jiayao about this matter. After a while, Chang Yuanchaos voice sounded next to him: Would it be too much trouble to go to the capital? You can tell from his tone that he wants to agree. I''m just worried that it will cause trouble to Chang Haonan. Its nothing to worry about. There happens to be a flight from Liucheng to Beijing the day after tomorrow. Ill book the tickets for you, and Ill just find someone to pick you up when you get here. ?Chang Haonan tried to dispel his parents concerns: It just so happens that Jia Yao has always said that she wants to come to the capital to visit. The nature of their school is special and she cant come out during the day, so she can only come during the holidays. Also, I just moved to a new place here, and its really a bit empty to celebrate the New Year alone. I wish I could hear my words Zhou Li felt that her family was a bit exaggerated. So this should be helping them find reasons. ?However, she has actually been thinking about it since just now, and now that the words have reached this point, there is no reason to refuse. Thats okay too. But the three of us can actually go by train, so we dont need air tickets..." ?The last time Chang Haonan went home, he even bought them a house. So Zhou Li and Chang Yuanchao must know that Chang Haonan has a little money. ? Its just that for people of their generation, saving money can be said to be a nearly instinctive habit. But the latter obviously cannot agree. Its not that she has any prejudice, its that trains in this era are really chaotic. ?However, Chang Haonan also knew that it would be difficult to convince Zhou Li, so it was better to change his mind directly: Its okay, I booked the flight at the internal price, it doesnt cost a lot of money After some prodding, Zhou Li finally agreed to Chang Haonans arrangement. The latter hung up the phone with satisfaction, and then dialed the number Wu Yifan had left for him... (End of this chapter) Chapter 657 You know that Ermao has an unfinished aircraft carrier, right? Chapter 657 You know that Ermao has an unfinished aircraft carrier, right? ?Chang Haonan and Wu Yifan were scheduled to meet at noon the next day. After all, although this kind of thing may be regarded as work, it actually does not require too much effort. The main thing is a human connection. Considering that the things to be discussed between the two involve a lot of secrets, it is naturally impossible to just find a restaurant to eat outside. ??But if you choose it in the conference room of Torch Group or the Commission of Science, Technology and Industry for National Defense, it seems a bit too formal and awkward. So, in the end, through Liang Zhuoping, I temporarily booked a private room at the guest house of the Aviation Industry Corporation. To be honest, although the company is about to be dismantled, Chang Haonan and Liang Zhuoping are still not very familiar with each other. But its not worth bothering Ding Gaoheng for such a trivial matter. Fortunately, with the former''s current status in the world, many things don''t even require a facial recognition, just a name. Even Liang Zhuoping could not deny face. So I finally ordered it. Because it is considered an internal unit, and it was considered to negotiate business with foreign customers or suppliers when it was originally designed, confidentiality is relatively good. ?It happened to be a coincidence that when Zhu Yadan parked the car in a nearby parking lot and Chang Haonan got out of the back seat, he happened to see a familiar figure not far away who had also just parked the car. Old Wu! ?Chang Haonan quickened his pace and walked over. ??Wu Yifan also saw Chang Haonan speeding towards him from a distance as soon as the car stopped. He quickly opened the door and got out of the car with a little clumsiness. In his last life, he had been trying to lose weight for twenty years, and his body shape had not been reduced until Chang Haonan was reborn. Unless Chang Haonan entered the weight-loss drug industry in the future, there was obviously no reason to lose weight successfully in this timeline. The two shook hands and then lightly bumped each other''s shoulders. ??We havent seen each other for two years, so the changes are naturally not small. Lao Wu, your business is quite big. In two years, this business has been opened..." Chang Haonan looked at the seventh-generation Mercedes-Benz S600 next to Wu Yifan and joked. At the same time, he turned around and led the other person towards the guest house outside the parking lot. Originally, I was thinking about buying it in a few years, but at the end of last year I heard that it would be discontinued, so I decided to buy it after hesitating for a while. The latter is not a pretentious character. After hearing this, he also put his hands on his hips and replied: Let me tell you, when I went to our school for the first time to report in 1993, I saw a car like this at the door. I thought it was really impressive at the time. Later, I dreamed about when I could buy one myself..." ??Wu Yifan recalled his original intention of doing business and followed in Chang Haonans footsteps: Moreover, when I go out to discuss business, many customers recognize this thing. When I drove that Lada before, I was not allowed to enter some places... Now that I have switched to a Mercedes-Benz, others can sign the contract much more easily..." It was easy to tell from his tone that he was quite satisfied with the car. In fact, the fact that others sign orders more efficiently may not be directly related to the car, but may simply be because their business scope is larger than in the past and they have gained a reputation. ?Its just that, after all, after spending such a large amount of money to buy something that I have wanted for a long time, I always have to find an excuse to convince myself. But then again. When he said this, Lao Wu and Chang Haonan had already stepped onto the steps outside the guest house door together. The staff inside opened the door and allowed the two of them to walk straight in. After entering the door, the former looked around to make sure there was no one around, and then continued: Speaking of which, I really thought that I was pretty awesome for building such a huge career within two years of graduation. But last year I accidentally discovered that you are nothing like a human being "I have heard about the reputation of Torch Group from Ermao, but I didn''t pay much attention to it at first. Then one day I watched the news and found that the face of the general manager of TM Group looked a bit familiar. When I took a closer look, it turned out that Its you ??Although Wu Yifan is also a serious college student, he comes from a wild background when it comes to business. Naturally, he does not have that formal feeling. On the contrary, he is a bit more gangster than when he was still in school. ??This is also a common characteristic of grassroots businessmen in this era. At present, we are still in the last barbaric era of doing business in the sea. If we dont have enough background, we can only be a little ruthless. At least thats how it appears on the outside. ?However, Chang Haonan and he have been friends for two lifetimes. Hearing such a familiar speaking habit makes him feel like "everything is becoming familiar." You cant say that either. Chang Haonan shook his head. After all, the old Wu next to him had made a lot of money even in his previous life, so he still had to respect his abilities: After all, the Torch Group is a country-owned company, and it has the backing and endorsement from above. You really built it from scratch, and we are not on the same track, so its not easy to compare directly. While talking, the two of them had already taken the elevator and arrived at the reserved private room on the top floor. For a business banquet, the dishes have naturally been ordered long ago, so after opening the private room door and before the dishes are served, no one will disturb you unless you specifically call for it. Wu Yifan sat down opposite Chang Haonan and continued what he had just said: "Hey, everyone can eat the national rice. Besides, in the current environment, many people are almost starving to death with iron rice bowls. , but it turns out that you can make a lot of money here, this is your level... To be honest, sometimes I regret not studying as hard as you when I was in school..." The communication between the two people is also a bit flattering. Compared with the common mutual compliments that are completely casual, the main difference lies in the heart. So no one felt awkward or unable to continue chatting. ?Furthermore, when he said this, Wu Yifan showed a look of regret on his face. ?However, the little regret in his heart was quickly dispelled by Chang Haonan: Forget it, everyones talents are different. The main thing is to find something that suits you. Otherwise, you wont get twice the result with half the effort..." This is obviously a statement of high emotional intelligence. Low EQ: People must be self-aware... Let alone this life, even if Chang Haonan was a complete blank slate in his previous life, he was still much better than Lao Wu in terms of academics. The latter is really not a candidate for research. On the contrary, it is more suitable for him to go to sea and explore the world. Lao Wu held his forehead with one hand and showed a helpless expression of "As expected of you, boy". ?At this moment, the doorbell in the private room suddenly rang. It means that a waiter is outside. ?This is a private occasion. Naturally, it is impossible to rush in directly when the food is served. You must wait until the guests give permission before entering. On a small cart, there were six dishes, four hot and two cold, plus a soup. This cant exceed the reception standards, right? After the waiter left, Wu Yifan shook out his napkin and asked in a semi-joking tone. He has traveled all over the country for so many years, and naturally knows that the six dishes and one soup in front of him are nothing at all according to the standards of a business banquet. He just remembered the hard life Chang Haonan had when he was in college. He usually rarely added a second dish, but now he finally I just got ahead of myself, so I just made a joke. The latter also smiled and waved his hands: "What''s wrong with this? The standards set for you are based on the standards for receiving the highest-level foreign customers. That is to say, our relationship does not need to be proved by ostentation. I only asked them to serve six dishes. Really If I change it to someone I dont know, then 12 is not too many..." Was it a waste? It is indeed a bit wasteful. But the general background of this time is like this. The standard of reception is too low, and it is easy for the other party to think that you are looking down on others. Immediately afterwards, Chang Haonan also remembered his stingy persona when he was in school, so he added another sentence in the same joking tone: Besides, if you cant finish eating, you can still pack it away... ?Wu Yifan was also happy: Im afraid its inconvenient to pack for a business banquet Of course its inconvenient for me, but I can ask the driver to pack things secretly in the back, and no one knows After the fun was over, the two finally got down to business. "Old Wu, I have seen all the things you have brought back in the past two years. There are indeed many kinds of things, but in general they are scattered, and most of them are superficial and not too in-depth." ?The purpose of Chang Haonan''s trip is almost obvious, so there is nothing to beat around the bush, so he goes straight to the point: "So, the superiors sent me here this time to see what kind of channels you have in Ermao, and to try to see if we can systematically introduce some technologies and products that are useful to us, including talents, of course. " ?Wu Yifans expression soon became serious: As for channels, we have actually established contacts with many companies or research institutions in Ermao. As for going deeper..." ?He looked a little embarrassed: After all, we are just a private company. Although the scale has grown a bit now, our ability to resist risks is still relatively poor, so we have always been able to maintain mutual trust and cooperation through small fights. The reason why I want to cooperate with the organization is that I can improve my ability to resist risks and take on a few big orders. Chang Haonan nodded slightly when he heard this. What the other party said does make sense. "Then...if we don''t consider the risk issue for the moment, can you get anything worth mentioning through your current channels?" Is this... ?Wu Yifan hesitated for a moment, and then, although he knew there was no one else here, he still lowered his voice: Brother Nan, you know that Ermao has a half-finished aircraft carrier on the Black Sea, right? "ah?" ?This sentence was absolutely shocking, and it made Chang Haonan confused for a while: Can you buy that thing back? ?Of course he knows about the Type 1143.6 aircraft carrier, which is the Varyag, the second ship of the Kuznetsov class. But in the original timeline, this semi-finished aircraft carrier was not brought back by Wu Yifan and the others. (End of this chapter) Chapter 658 Move the entire aircraft carrier project back? Chapter 658 Bring the entire aircraft carrier project back? Can''t blame Chang Haonan for making a fuss. ??If there is any difference between this current timeline and the previous life, it is that there is an extra variable like himself. ??But no matter how strong the butterfly effect is, there must always be some basic logical relationship. ?Chang Haonan just ran through a few...more than a dozen major things he had done since his rebirth in his mind, and he really didn''t find anything that would affect the rhythm of Ermao''s sale of aircraft carriers. ?However, while he was brainstorming, Wu Yifan shook his head: "That''s not possible. Ermao''s company quoted US$20 million for this ship last year, and then they said it would be auctioned. We couldn''t raise that much money at first, but then we raised enough money, and we couldn''t improvise what we needed for the auction. Documentation, I had to give up. Thats right ?Chang Haonan''s first reaction was to breathe a sigh of relief. After all, the less deviation this happens, the better it is for him. ??Although sooner or later we will enter a completely different timeline from the previous life, the core point of difference will only appear a day later. If nothing else, it will have to wait until after September 11, 2001. ?But then, Wu Yifan changed the subject: "But the person who bought the aircraft carrier in the end was a friend of my partner, so...it''s actually pretty much the same. We also know most of the things in the whole process." But this cant be considered your channel, right? Although Chang Haonan has a good relationship with the other party, when it comes to such a big job, business matters must be dealt with. Otherwise, you are not only harming yourself, but also harming the other party to some extent. Listen to me. ?Wu Yifan swallowed the piece of fried pork in his mouth and continued: When bidding, you need to state the purpose of purchase. The person said that he wanted to take it home and park it at the beach as a tourist attraction, just like he bought the Minsk before. "But we knew at that time that this must be pure nonsense. The Minsk could only be used as a theme park after we bought it because it had been in service for more than 20 years at that time and was in disrepair. Before we got it, it was still in disrepair. It was destructively demolished by the Koreans and has no other value at all. " "The Varyag does not have this problem. The entire ship is about 60% complete. Besides being soaked in the water for a few years, it is basically a semi-finished new ship. As long as the equipment is reinstalled and refurbished, it can be directly It can be used as a serious aircraft carrier..." Listening to the other party''s analysis, Chang Haonan remained silent, but still nodded in agreement. This does not require him, a reborn person, to look at this with hindsight. Even at this time, everyone agreed that the Varyag would definitely be rebuilt sooner or later after it was bought. Otherwise, there wouldnt be so many obstacles in the middle. When I bought the Melbourne and the other two Type 1143s, there were no such problems. Old Wu opposite took a sip of mutton soup, then raised his head again: Since we are building an aircraft carrier, the aircraft carrier is not just a simple ship. So, after we found that it was too late to prepare for the auction, we focused on other supporting items. Hearing this, Chang Haonan did feel a little overjoyed. ?As Wu Yifan just said, aircraft carrier, as a systematic project, involves a vast amount of content. Not only technical, but also training and usage. ?Most countries, even if they pick up one for free, will not be able to use it or use it well. ?Although Chang Haonan has been expanding his research scope over the years, he still started out as an aviation major and knows very little about the shipbuilding field. Even if he is currently studying, he has some serious skills. As for the command of shipborne aviation... That would be even more of a layman among laymen. And even the system cant do anything about it. Therefore, if we can get the support of experienced technical personnel from Ermao in this regard, it will undoubtedly play a huge role in promoting China''s aircraft carrier business. However, he was already a little moody now, so he did not express his excitement on his face. Instead, he took a bite of food to calm down, and then asked: "What are the details?" Then...thats a lot to say. Lao Wu raised his head slightly, as if thinking, stretched out his fingers and began to take inventory one by one: For example, although the Azov Steel Plant is not specialized in making marine steel, it can also produce a considerable part of the high-grade steel required by aircraft carriers, and it also maintains some technical data related to post-processing and welding processes..." "Several An-71 early warning aircraft produced by the Antonov Group are said to be able to take off from the ski jump deck. I don''t know whether this is possible, but it should be difficult to park in the hangar. However, if the country finds it useful, It will definitely be no problem to package the prototype and technical information back..." "As well as the Black Sea Shipyard itself, there have been no orders in recent years. I used to have some scattered orders for small barges and fishing boats, which barely stabilized the overall situation there. If you need talents in this area, then it is best to I better start quickly, otherwise I will probably be poached by Europe and the United States sooner or later..." The other is a carrier-based aircraft training facility. They seem to call it Nitka. They build something similar to an aircraft carrier deck on the ground to allow pilots and commanders to conduct simulated training..." ?Wu Yifan frowned, obviously racking his brains and trying to describe it in the most vivid way possible. After all, for people who have never seen it, it is indeed difficult to imagine what the Nitka base looks like. ?However, Chang Haonan naturally saw this thing on the Internet later, so he interrupted the other party directly: "It doesn''t matter, I happened to have seen the information on that thing, just go on." Lao Wu nodded after hearing this and skipped the explanation part: In short, although Da Mao is using that thing, it is under Ermaos control after all, so we can send people in the name of visiting, and they can go in and take a look at it as long as they pay money. "Also, a fixed facility in Nitka cannot be moved. However, the person in charge of that base has a good relationship with me and said that all their technical information, including the base itself and related to carrier-based aircraft training, can be transferred to one place. Pack it up and sell a copy to us, but the asking price is a bit high, 8 million U.S. dollars, which is almost half of that aircraft carrier. For a businessman like him, just ordering copies of documents and selling them for 8 million is really a shame compared to buying a boat. But Chang Haonan knows that if you really want to say it, the 8 million may be more cost-effective... ??And if the things mentioned above can really be obtained over there, the faster the cooperation between the two parties, the better. Actually, he didnt doubt this too much. It was a lifetime of trust in Wu Yifan as a person. More importantly, many details of what the other party said are still not public in this era. If you havent seen it with your own eyes, its impossible to know. So, he did not hesitate for too long: These channels are indeed quite valuable. When I go back, I will make a report with the superiors to see how we can work out a specific method of cooperation. "But now that the New Year has passed, it will take until after the New Year to wait for the formalities and so on, but these things cannot be postponed, especially the technical staff of the Black Sea Shipyard and the relevant information of the Nitka training facility. You have to take it down as quickly as possible, otherwise I''m afraid something will change when the aircraft carrier returns." ?Wu Yifans eyes lit up after hearing the first half of the sentence, but the second half made him hesitate a little: Brother Nan, let me tell you everything. If this company belongs to me alone, then I will be fine with your words. "But now I still have a partner. According to Nitka''s information, the asking price is 8 million US dollars. If we find another place to hire employees from the Black Sea Shipyard together, then including all kinds of management, the cost will be 1,000 US dollars." Four to five million U.S. dollars, if you want to advance it directly..." ?Chang Haonan naturally understood what the other party meant. ?The brother has to settle the accounts clearly. No matter how much he says, he can''t let others risk eight-digit dollars with just a word. "As for money, we can''t directly inject capital into you, at least not until you get your things back, otherwise something will definitely go wrong." "However, we can sign a few labor contracts first. The content is that you will act as an agent to hire a group of 20-cent engineers and be responsible for bringing them back to the country. In this way, we will pay you part of the advance payment first, and with the contract written in black and white, it can be regarded as How about reducing some of your risks? Having said this, Wu Yifan cannot make any additional requests. After all, this kind of business requires officials to endorse you. If you dont want to do it, others will do it, and you cant do it without taking any risks. So, he nodded decisively: "Okay, then after I go back today, I will contact Ermao and let them start preparations!" (End of this chapter) Chapter 659 Western Balkans Conspiracy Chapter 659 The Western Balkans Conspiracy After the business talk is over, the rest is naturally the process of eating and drinking. Speak up, Brother Nan. During the dinner, the two were chatting about some past events that happened during their undergraduate years. Wu Yifan suddenly changed his tone and said to Chang Haonan mysteriously: For some large physical samples, such as those An-71 verification aircraft, if they are to be transported back to the country, they must take the sea route. The latter nodded and motioned for the other party to continue speaking. "but" At this point, Lao Wu obviously hesitated, but he continued after a moment: I estimate that there may be chaos in the Balkans this year. If there is too much movement, shipping in the Mediterranean may be affected. These things, including the transportation of the aircraft carrier, may have to be delayed until the second half of the year. If this is the case, you must be mentally prepared. In addition, it is best to take this into consideration and add an exemption clause for us in the contract. "Um?" Chang Haonan was picking up vegetables. After hearing these words, his chopsticks stopped in mid-air: Elaborate? After finishing speaking, he added: Im referring to the Balkans part. Dont worry about the disclaimer clause in the contract. It will definitely be fine. Logically speaking, although that place has not been peaceful in the past few years, in the original timeline, at least the Allied operation itself was relatively sudden. Why is it now as if everyone knows about it? The organization has intelligence sources from Europe, so the information is better than in the previous life. ??But how did Wu Yifan, a treacherous man, know? I have some contact with the intelligence agency of San Mao. Before I returned home this time, I heard some rumors from a small leader, saying that they might jointly form a peacekeeping detachment with Da Mao. Chang Haonan frowned slightly after hearing this: "that''s all?" ?Although the peacekeeping detachment did exist in the previous life, it is obvious that the previous conclusion cannot be deduced logically. "Well" ??Wu Yifan looked at Chang Haonan who looked suspicious, his face stiffened, and then he sighed helplessly; Okay, I know I cant fool you. Actually, its because someone asked us to secretly transport weapons and equipment over there. Although they and we used false identities, we can probably guess that the person opposite us is someone from the Maoist Intelligence Agency. I grass. ?In front of old and familiar friends, Chang Haonan had no baggage. In shock, he uttered the quintessence of Chinese culture: Can all of you take this job? Its definitely possible. Weve dealt with the customs in several countries over there. We dont even have to stop the car to go through customs, but in the end we still didnt pick it up. ??Wu Yifan shook his head like a rattle: "My partner originally wanted to do it, but I felt that the new head of the Federal Security Council who was appointed by Mao was confused and difficult to deal with, so I persuaded him." ?Chang Haonan thought for a moment and discovered that the chairman of the Federal Security Council at this time was indeed no ordinary person. It should be said that Lao Wu still has good vision in this aspect. But this seems worth digging into. So he paused for a moment and then asked: Do you know what Damao is transporting? ?Lao Wu leaned his upper body on the backrest and raised his head slightly as if thinking: Im not sure, but judging by that, Im afraid its not just some gadgets like rifles or bullets. "First of all, there is no shortage of light weapons in the Balkans. There is no need to go there with a big fanfare. Secondly... they even asked us if we can handle railway transportation in Romania, so I guess there must be at least artillery shells or missiles. ?Chang Haonan couldn''t help but take a deep breath. ?Things seem to have started to go a little awry. After a while, he tentatively spoke again: "Then...if you don''t do it, Old Wu, will this transportation be ruined?" As a result, Wu Yifan immediately waved his hand: "How is it possible? There are so many people doing this business in Southeast Europe now. Even if we don''t take it, they can always find someone to do it. That''s why I think it''s difficult to settle this matter casually." During the time when the two seemed to be chatting, Chang Haonan had many speculations running through his mind It''s possible that this matter existed in his previous life, but he didn''t study it specifically, so he didn''t know about it. It is also possible that Da Mao was affected by the butterfly effect he brought and decided to adopt a more active response strategy in this incident. At a certain moment, Chang Haonan seemed to have caught the thread that he had always felt existed but could never find. Lao Wu. He raised his head and looked at Wu Yifan who was drinking soup opposite: If, I mean if. If you take this kind of job, whats the biggest thing you can transport in? The latter suddenly felt that the atmosphere in the entire private room had solidified, and almost involuntarily shrank his neck: Our scale is not big enough, and we certainly cant use tanks and armored vehicles. Thats too obvious. Even if we bribe the checkpoint, we cant treat people as fools. But as long as it can be loaded into a covered boxcar or container, there is a high probability that it can be transported. If it can be loaded into a truck, then it is almost casual. If it were a large organization with a relatively well-established background, it would be even more powerful than us. ?Chang Haonan suddenly had a bold idea. From a hindsight perspective, thanks to good camouflage and cover, the Allied operation actually failed to destroy the vast majority of the Confederate ground units. The loss rate calculated after the event was even less than 10%. The real heavy losses were the civilians and civilian targets who were bombed indiscriminately, which ultimately made it impossible to continue to resist. In other words, if you can use some tricks to make a big difference, then even if you cannot make a comeback, you can at least cause enough trouble to the attacking side. In the past few years, he happened to come up with some equipment that is very suitable for this environment... For example, the Aerospace Technology Research Institute took the lead in developing the multi-station collaborative passive positioning technology. is very suitable for anti-hiding. ??Moreover, if it is in the form of a ground detection station, it can even be improved on the basis of existing radar. ? ? If you do a rough calculation, the operating space is not low. ?Of course, the premise of everything is that you must be able to find a way to do it behind the scenes. After all, its not time to really break up with your opponent yet. Brother Nan? ?Looking at Chang Haonan who had been silent for a while, Wu Yifan called out with concern. ?There is absolutely no room for error in this kind of thing. Even if he is an old classmate, the former cannot shake off his thoughts now, so he quickly added: Oh, I was just wondering if it would be safer if you slowed down your movements. ??Wu Yifan did not doubt that he was there. After hearing this, he quickly vetoed: "That''s not necessary. Didn''t you say before that the most useful things are the people at the Black Sea Shipyard and the information on the Nitka facilities? These two things don''t need to be transported by sea. They can be transported directly to the country by plane." "But the aircraft carrier shell needs to be paid attention to. Even if there is no incident in the Balkans, because there is no power, we can only rely on tugboats for the whole journey. I am afraid that the Suez Canal and the Bosporus will not be easy." Chang Haonanxin said that your guess is quite accurate. In my last life, I was stuck in these two places for a long time. The Strait was finally passed, but the canal did not pass through until the end, and it ended up around the Cape of Good Hope. Thats true. He nodded, and then changed the subject: But this is not our business, there will be other people to worry about, so its better not to meddle in those nosy matters Chang Haonans fully public identity is now limited to the general manager of Torch Group and the acting director of the Computing Center of Beijing Hang University. Therefore, he generally avoids revealing too many concerns that are inconsistent with the work of these two positions. Subsequently, the two quickly started chatting about other topics... It wasnt until the meal was finished and Wu Yifan was sent away that Chang Haonan sat back in the back seat of the car and his expression turned serious. Chief, are you going home? ?Zhu Yadan asked as he fastened his seat belt. "No." Chang Haonan shook his head slightly: Go to the Science and Technology Commission again. (End of this chapter) Chapter 660 Passive positioning anti-stealth radar Chapter 660 Passive positioning and anti-stealth radar ??When Ding Gaoheng saw Chang Haonan appearing at the door of the office, his first reaction was to be a little surprised. Xiao Chang? Havent you already started your Spring Festival vacation? He put down the half-read report in his hand and motioned to Chang Haonan to find a place to sit. Its indeed the Spring Festival holiday, but my family wont arrive in Beijing until tomorrow, so I dont have anything to do today. I just met with my classmate and talked about the current situation in Ermao. ?The latter took off his hat and scarf, and then sat in his most accustomed position on the sofa. ?However, Ding Gaohengs first concern is the first half of the sentence: Your family is coming to Beijing to celebrate the New Year... Do you need to organize transportation and pick-up and drop-off after arriving in Beijing? ?Chang Haonan quickly waved his hand: "No, no, no, I''ve already bought the air ticket. As for the transfer, I have nothing to do tomorrow anyway, I can just go by myself." After all, it is only human nature to pick him up in person. Ding Gaoheng did not insist on this matter. He just changed his tone and said: Actually, given your current situation, you can transfer the working relationship of your immediate family members to the capital. I have sent people from the organization to coordinate before, and I have also consulted their opinions through the parent unit, but in the end they refused. If you have the opportunity this time, you can persuade them again..." I know this. Chang Haonan was not pretentious, but said with a helpless smile: "At the beginning, when I received the May 4th Youth Medal the year before last, our local city mentioned the matter of transferring my parents'' jobs, but they felt that their abilities were limited, and if they were really transferred to any key positions, they would lose their jobs. , but it has a bad impact on me. Ding Gaoheng laughed heartily after hearing this: "In this case, we will definitely give them to idlers, so we don''t have to worry about losing the chain." However, I still have to say that I admire your parents for maintaining such a calm attitude. What is this called... a tiger son without a dog father? Thats pretty much what it means anyway..." Anyway, its not easy for both of them to cultivate talents like you, Xiaochang After the family issues regarding Chang Haonan came to an end, Ding Gaoheng turned to the next matter. By the way, you just said that you have met your classmate who is engaged in import and export business? ?Originally, according to Ding Gaohengs plan, as long as he could meet with Wu Yifan during the entire Spring Festival: You dont have to rush to report to me about this matter. Anyway, even if we take any action, it will basically have to wait until after the Spring Festival holiday. Since it is a holiday, you have to learn to put your work aside for a while. "To tell you the truth, when I went out this morning, I really planned to go out to have dinner with him and then go home." Chang Haonan replied: But while we were having dinner, he mentioned several very important things to me. Regarding the situation in the Balkans, I felt that we should not delay for too long. It might be too late after the new year. Ding Gaoheng didnt speak, but he looked relaxed just now, but now he suddenly became serious. The whole person also assumed a posture of being ready to listen and think. ?Seeing this posture, Chang Haonan also sat up a little straighter: He said that before he returned home this time, someone entrusted them to smuggle some goods overland to key areas in the Balkans. The quantity was large and the volume was not small. Trains may even be used. "Although they did not take the job in the end, based on the other party''s description, it is speculated that it should be military supplies, and the people who hired them can basically be the intelligence department of the Russians." Ouch! Ding Gaoheng was almost in a state of excitement: If thats the case, that means ?Halfway through the words, he regained his rationality and murmured to himself: No, although the situation at Lao Maozis side is much better than in previous years, it is not the Big Brother period after all. It is impossible to directly confront the Americans over the Western Balkans..." "But then again, after all, this area is their traditional sphere of influence. Even if it is shrinking now, they should still have the ability and intention to give others eye drops..." ??????Apparently, this news made his CPU A bit overheated. This is normal. After all, in the current 1990s, Mao Maos national policies are eager to change three times a day. ?Dont tell others, even they themselves may not know what to do next. ?However, Chang Haonan knew. In the last life, although I had never heard of arms smuggling, Da Maos VDV Superman did occupy an airport in a strategic location in the Western Balkans in June 1999. Although it had no impact on the final outcome, and the logistics support did not keep up, at least the attitude was there. Looking at Ding Gaoheng who was in a dilemma, Chang Haonan further said: Although it is difficult to change the overall situation with our current capabilities, I think it is entirely possible to use the Russians smuggling behavior as a cover to support some less eye-catching but very critical equipment. Firstly, it can cause some trouble to the opponent, and secondly...it can also speed up the process of changing the equipment of our army. Ding Gaoheng raised his eyes and glanced at Chang Haonan sitting on the sofa: Im afraid this latter part is your kids real purpose The latter scratched his head and said nothing. "Although it seems feasible in theory, after all, even if someone gets caught, the blame will naturally be placed on the Russians and will have nothing to do with us." Ding Gaoheng said and resumed his semi-lying position: But we cant transport fighter jets or anti-aircraft missile systems with great fanfare. If its just some small pieces, or even portable anti-aircraft missiles, it wont mean much..." It is indeed so. ?Chang Haonan finally found the opportunity to get to the point: "But in the past few months, the Shanghai Aerospace Technology Research Institute and the 14th Institute of Electrical Engineering, of course I also participated in some work, jointly developed a passive positioning radar based on the old VHF search radar, which can be directly used by all over the world. To upgrade the P18 radar, there is no need to replace the antenna, just modify some rear-end parts. The most important thing is that there is no difference at all in appearance. " Whats the role? Ding Gaoheng''s movements remained unchanged, but his speaking speed and breathing had significantly accelerated. "When the enemy has a strong radar signal source in the war zone, it can be used directly to counter radiation. Unfortunately, the early warning aircraft is too far away from the battlefield. Our supporting missiles have not been developed yet, and even if they are developed, they will not be able to fly there with great fanfare. Its shipped overseas, so it doesnt make much sense. However, when the electronic signals in the environment are relatively clean, this radar can also locate through multi-point passive detection, and even lock on stealth aircraft. "Considering that neither the B2 nor the F117 can currently use long-range weapons, they can only fly over the target and bomb from the air, and their maneuverability is very poor. Therefore, if you can search for the target, you can try to see if you can shoot it down! " Ding Gaoheng also completely understood this somewhat crazy plan at this time: So, are you going to get a few sets of the components needed to upgrade and improve this radar, and let them develop an anti-stealth radar on their own? Thats right. Chang Haonan nodded: "Using multi-point fixed radar stations on the ground for passive positioning is not a particularly new technology in itself. It is just a direct improvement on the old model of radar. No one has tried it in the past, so it should be able to catch the opponent off guard. " Behind the seemingly crazy idea, there is quite a thoughtful consideration. First, there are indeed channels to sneak things in. Secondly, even if the worst case scenario occurs, it will only result in the loss of a batch of radar parts and will not involve more things. ?However, once it succeeds, the results will be immeasurable. The limit is to use a small amount to make a big gain. Therefore, after weighing it in his mind for a long time, Ding Gaoheng finally made up his mind: "This is a serious matter. Don''t tell anyone about this matter yet. I''ll go ask for instructions from above!" (End of this chapter) Chapter 661 I, an ordinary state-owned enterprise employee Chapter 661 I, an ordinary state-owned enterprise employee When I came out of the Science and Industry Committee again, it was almost time to get off work. Chang Haonan walked down the steps and suddenly noticed a snowflake falling on the clothes on his shoulders. Looking up, I realized that the weather that was quite sunny when I came in was now covered with a layer of clouds. ?Originally, this kind of weather is normal in the winter in Beijing. But combined with the topic he just talked about with Ding Gaoheng, it feels like "dark clouds are about to destroy the city" or "the rain is coming and the wind is filling the building". In fact, if possible, Chang Haonan even thought about asking the organization to withdraw people from the Balkans in advance. ?But just a moments thought will tell you that this wont work. First of all, it is impossible for the higher-ups to make such a big move related to national policy just because of his words that are similar to those of dancing masters. Secondly, overseas institutions are legally equivalent to national territory. Even if you withdraw the person, if the same thing happens in your previous life, you can''t just let it go. Treat the symptoms rather than the root cause. ?Furthermore, even if China is currently on the strategic defensive and keeping a low profile, it is impossible to solve the problem by simply giving in. If you seek peace through struggle, you will survive in peace; if you seek peace through concessions, you will perish in peace. So, the final key lies in countermeasures. As for the risks ?That must exist. ??If you want to make a big difference with a small thing, you can only walk a tightrope. Damn, this world Chang Haonan cursed to himself, which was a small vent. Rationally, he knows that he has done a lot in the past three years. But emotionally, these obviously still cannot fundamentally reverse the situation, so it is still difficult to feel satisfied. It can only be said that in the 1990s, the gap between China and its opponents was indeed exaggerated. Thinking about it this way, it took more than twenty years to roughly catch up with the opponent in my previous life. Its really outrageous... ?Chang Haonan lamented the difficulties of his predecessors as he came to the parking lot and opened the car door. ? He sat in the back seat and breathed a sigh of relief: Lets go, go home this time. The snow outside the car window is falling harder and harder. The street lamps and storefronts are also decorated with some festive decorations with a New Year flavor. Such a peaceful scene finally made Chang Haonan''s heart, which had been a little depressed, gradually relax: By the way, remember to call tomorrow morning and ask if the flight from Liucheng will be delayed. Lets pick him up. Hey, okay. ?Zhu Yadan nodded. Also, help me clean up when I get back later. ?Chang Haonan leaned his head on the side window and said. Otherwise my mother will have to nag me all day tomorrow He thought to himself. ?Of course, the second half of the sentence was not spoken. Otherwise, the character design is a bit broken... It snowed heavily until midnight. Fortunately, when I got up the next day, it was nice weather. So flights were not affected. Speaking of which, I havent been to Nanyuan Airport for a while. Whathow ??After Zhu Yadan parked the car, Chang Haonan looked at the terminal building that seemed to have changed a lot in front of him, and he was a little at a loss for a moment. When he first went to Shengjing, this was where he started. ?Later on, when I was enjoying free air tickets on United Airlines, I always stayed here when traveling to and from Beijing. Its just that not long after that, he stumbled upon another special plane that was not entirely his own on paper, but was actually used by only him. ?So we all went to Xijiao Airport. But it had only been a year and a half since the last time he came here, and he almost couldn''t find the exit... "I heard that United Airlines chose this airport as its base last year. Then, in order to better adapt to future domestic technologies, the Science and Technology Commission allocated a special sum of money to update the entire aviation facilities at the airport. Zhu Yadan locked the car, came behind Chang Haonan and explained: The airport felt that since all the aviation facilities have been updated, they should work tirelessly to renovate the passenger facilities from the inside out, which is what it is today. ? ? "Okay..." ? ? Chang Haonan nodded helplessly. I didnt expect that this matter could have anything to do with him. ?However, the first C808, which will be assembled with large components, will not roll off the assembly line until March or April next year at the earliest. The larger C909 has only just finished its final assembly workshop. The construction of supporting facilities so long in advance is enough to show that the Science and Technology Commission is really in a hurry when it comes to civil aircraft. But it makes sense when you think about it. After all, although the management of the civil aviation industry has been firmly in the hands of the Science and Technology Commission, the civil aviation industry itself has not. Then it is inevitable to be given some eye drops. ?For example, the MA 60, which is about to begin mass production, has not been sold as many domestically as export orders. Although the above is that administrative orders can be used to require several major airlines to purchase a certain number of domestic models. But on the one hand, this is the final stage of the WTO accession negotiations. Countless eyes at home and abroad are watching, so it is not advisable to do anything too blatant. On the other hand, there are policies at the top and countermeasures at the bottom. Others can use methods such as deliberately reducing the attendance rate and on-time performance of domestically produced aircraft to violate the policy. ?This kind of problem will definitely be solved slowly over time, so it is impossible to give strong medicine in a short period of time. But in this way, as the only United Airlines that can be controlled by the Science and Technology Commission system, the burden on its shoulders will be very heavy... ?Just when I was distracted, a buzzing sound of an approaching propeller came from mid-air. A Y-7 landing. Obviously, this is the flight that Chang Yuanchao and the three people took. The distance between Liucheng and Beijing is less than 500 kilometers. Even if there is one flight every week, not many people will take it. If it is operated by a mainline passenger aircraft like the A320, it will be completely lost. ?Chang Haonan and Zhu Yadan walked towards the exit marked "Domestic Arrival". About twenty minutes later, three figures carrying large and small bags appeared in their field of vision, looking around, obviously looking for someone to pick them up. Although I told you on the phone before not to bring too many things with you. But it is obviously impossible to have an effect. ?Chang Haonan waved towards them, and the three of them quickly walked towards this side. Dad, Mom, Jiayao. Xiaonan. Long time no see, brother. It can only be said that the army does train people. ?It has only been a year and a half, but Chang Jiayao has already been completely transformed compared to before college. Even compared to the time Chang Haonan went to see her before, it was very different. Lets go, the car is parked outside. ?Chang Haonan picked up the two larger packages on the ground with both hands, looked at the two larger packages, and called the three of them to prepare to turn around and walk out. ?Zhu Yadan hesitated for a moment, but still only helped to take one. ??Although the probability of encountering risks in the capital is low, according to requirements, she should try her best to ensure that at least one hand is free just in case. "Who is this" ?The last time Chang Haonan returned to Liucheng, the security level was still relatively low, so Zhu Yadan did not follow him, and naturally the two elders did not know him. I am the chiefs attach, just call me Xiao Zhu. As soon as these words came out, Chang Yuanchao and Chang Jiayao, who were also in the powerful department, were immediately shocked. ??If the word "chief" is placed in the military and police system, it is nothing. It can be called a mid-level commander or a leading cadre. But Chang Haonan is not a military policeman, so he can be called that... ?Things are obviously not simple. Zhou Li next to her didnt notice anything strange. Instead, she looked Zhu Yadan up and down: The young man is so handsome... ?That look in his eyes even meant he was looking for his son-in-law. ?Chang Haonan and Zhu Yadan were speechless for a moment, but in the end they did not explain in public. After all, the latter, an indistinguishable figure of male and female, is part of the job. I said brother After leaving the waiting hall, Chang Jiayao walked quickly behind Chang Haonan: Where have you gotten into now Since you visited me at school last time, although no one has said it clearly, I can feel that Instructor Zhangs attitude towards me has been different... Obviously, Zhang Jiujiang still has some room for improvement in his acting skills. Is this... ?Chang Haonan even felt that it was not easy to explain for a while: Can be regarded as a formal employee of an ordinary state-owned enterprise... (End of this chapter) Chapter 662 I designed that plane Chapter 662: That plane was designed by me In fact, there is nothing wrong with this answer. After all, Torch Group is still an enterprise under the Academy of Sciences on paper, not a unit directly under the central government. It is not an "ordinary state-owned enterprise". As for regular employees, its even considered as putting money on their own faces ?His files are still at Beijing Hang University, and he just holds the position of general manager of Torch Group. ??If you have to say it, it can only be regarded as a contract worker... It will take another three months to become a regular employee. ??If Zhu Yadan hadn''t stepped forward and opened the car door almost as soon as Chang Haonan finished speaking. Chang Jiayao next to her had an expression on her face: "I''ve read a lot, don''t lie to me." The Toyota Crown was still quite popular in the 1990s. At least the average person is definitely not able to afford it. "Well" Chang Haonan didnt mean to hide anything, but he was the only one in the country who was a scorpion daddy. He couldnt explain it in just a few words: My situation is more complicated to explain. Ill explain it in detail when I have time. As he spoke, he opened the trunk and started stuffing things inside. Chang Jiayao could roughly guess that she was worried that the old couple would be surprised by the good news and shout something uncontrollable in public. The five people quickly got into the car separately. Because we are all family members, there is no need to be so particular about seats. ??This was Chang Jiayao''s first time in the capital, so she specially occupied the co-pilot''s seat in advance. ?Although the old couple had been here before, it had been several years, and they didnt stay long at that time. ?So Chang Haonan squeezed in the middle of the back seat very consciously. After sitting down, I found that the younger sister in front of me could not help but be curious and was looking around. After all, she is just a 19-year-old girl, and she is inevitably excited when seeing new things. So he told Zhu Yadan who was starting the car: When you go back, turn down a little and walk through Changan Street. ?Although due to work, he almost passes there every day in the capital, it doesn''t matter anymore. But for those who are new to the capital, it is a must-visit place just like the Great Wall. "good." ?Zhu Yadan nodded while reversing the car. ?The old couple sitting on either side of Chang Haonan, one on the left and one on the right, originally wanted to show a calm aura in front of the two children. But when Zhou Li heard Chang Haonan''s words, she turned her head and said seemingly casually: By the way, I used to watch TV, and it said that every morning, there would be a team of Peoples Liberation Army soldiers on the square responsible for raising the national flag together with the sun? ?These words were almost made clear, and Chang Haonan naturally understood the deeper meaning. Obviously the old mother wanted to see it herself, but was too embarrassed to say so directly. Yes, where I live is not too far away. When the weather is nice, we can go there and have a look. He nodded and replied. ?In fact, in the 1990s, strictly speaking, the person responsible for raising and lowering the flag was not the People''s Liberation Army, but it is obviously pointless to dwell on such details. Cars were speeding by on the streets of Beijing. Nanyuan Airport is still quite far from the city center, so when he was about to arrive, Chang Haonan noticed that Zhou Li could no longer hold on anymore and fell asleep leaning against the window. "mom" He originally wanted to wake his mother up, but was stopped by Chang Yuanchao on the other side: Dont call her, she will come over again anyway. "Since you made that phone call the day before yesterday and said you would take us to Beijing to celebrate the New Year, your mother has not said anything in the past two days, but she has been so excited that she can''t sleep well at night. She just took a plane for more than an hour, so she is probably tired. ?Chang Haonan nodded, indicating that he understood. ? Among other things, the first time I took a plane, I experienced the hard work of running 7 on a whiteboard. It was indeed a difficult journey. ?But thinking of this, he looked in front of Chang Jiayao who was staring attentively outside. By the way, Jia Yao. Hearing her brother calling her, Chang Jiayao turned her attention away from the bustle outside: "What''s wrong?" You should be finishing the first half of your sophomore year now, right? Chang Jiayao didnt reply.?????This is obviously not a real problem, it is just paving the way for the future. So have you flown a plane before? Speaking of the current situation, Chang Haonan naturally no longer thinks about becoming a pilot. But it is still a childhood dream after all, and now it has been realized by my sister. If I say that I feel a little regret in my heart, I still feel a little bit. Is this... Chang Jiayao hesitated for a moment: Originally, we were supposed to start flying in our junior year, but for some reason our current class suddenly started an aviation experience course in the second half of last year. "The instructor is driving behind us, not letting us operate the aircraft, and takes us through the flying maneuvers. Then he gives us a map, a page of a book, or something else, and lets us read it while flying in the sky. After the maneuver is over, we can remember it after reading it. How many." Its quite interesting, everyone likes it, but it shouldnt be considered as flying a plane yet. Chang Haonan naturally understood immediately after hearing this. These were the students who should be selected to participate in the military parade in the second half of the year. Because it is impossible to come in a big way, so this is the only way. Sit in the front seat of the trainer plane... Its actually quite good, at least the view is better than from the back. Chang Haonan naturally remembered that more than two years ago, he got on the J-7 to see the airflow situation. Chang Jiayaos expression was complicated: Why do you say it as if you have sat on it... "I" Chang Haonan originally wanted to blurt out that I had actually sat there, but this seemed to have no use other than frightening the old father next to him, so he simply stopped arguing and directly launched a decisive attack: Forget it, how are your grades? "I" ?This time it was Chang Jiayao''s turn to look blank. Actually, her grades are pretty good. But its a bit uncomfortable to always be dominated by your friends. Secondly, any student, no matter how good or bad he studies, is actually not willing to talk about this topic. Anywaythe result in the aviation experience class was the first. Obviously, her weakness is in cultural classes, so she just avoids the important and takes the easy way out. After finishing speaking, I did not forget to emphasize: He is number one among all pilot students in his class, regardless of gender. Thats okay, its not a disgrace to the family ?Chang Haonan nodded happily, but then changed the subject: It cant be Instructor Zhang ?Chang Haonan specifically asked before leaving the aviation school last time, at least not to show favoritism in terms of grades. But I am always a little worried about whether something will go wrong. Chang Jiayao knew that Chang Haonan must have known Zhang Jiujiang, but she didnt know how. She just assumed that her elder brother didnt believe in her academic level, and she immediately looked fierce: "How is it possible? My sister, I am so unwilling to let my brother rest assured?" ??If Lin Daiyu were to say this, her tea skills would be immediately overwhelming, but Chang Jiayao has developed a tomboy style in the military academy, so she definitely doesn''t have that taste anymore. ?Chang Haonan saw that Chang Jiayao''s fluent answers were normal, so he knew that this was not the case, and he immediately breathed a sigh of relief: Its better if you dont have it "but" Speaking of this, Chang Jiayao softened the "ferocious" expression she had just deliberately pretended to have, and at the same time changed her tone: "Instructor Zhang really takes good care of me. Sometimes he will tutor me after class in the cultural class. He will also take me to practice more in the physical class, as well as my daily routine... He can''t control this, but how often does the life teacher check our bedtime? Its several times that of other dormitories, and I estimate that 80% of them were also ordered by him. To be honest, our female students are not so strict in their daily lives, but I just...one time I went to bed a little late at night, and I didnt want to practice extra the next day, so I was scolded by him..." This was actually Chang Haonan''s request, but if he said it directly it might affect the relationship between the brother and sister, so he said with a normal face: Isnt it a good thing to have strict requirements on you? "I know it''s a good thing, so what I just said was that instructor Zhang took care of me, not that he was targeting me." Chang Jiayao nodded: But there has to be a reason for special treatment, right? I think the relationship between you and Instructor Zhang is more than just acquaintance. At this time, Chang Haonan was in the car and could talk a little more. ?Of course, things like Project 9910 and Turbofan 10 are indeed confidential, and no one in the family can talk about it. ?However, other things can still be revealed to some extent: Has your aviation school recently acquired a new batch of aircraft? Chang Jiayao was stunned for a moment, then continued to nod: There is such a thing, but that is a matter for the advanced student class. We will have to wait for another two years before we can fly on the advanced training aircraft. That plane was designed by me. "ah?" (End of this chapter) Chapter 663 You can watch the military parade live Chapter 663: You can watch the military parade live Not only Chang Jiayao, but also Chang Yuanchao, who was silent next to him and just listened to a pair of children chatting and amusingly, didn''t tense up and sat up straight immediately. Fortunately, the Crown''s back seat space is quite good, otherwise I would have hit my head. ??The movement was a bit loud now, and even Zhou Li, who had been sleeping next to her, woke up, but she was still confused and didn''t know what happened. Both of them are laymen in the field of aircraft design. Even Chang Jiayao may not be able to tell the difference between the chief designer, chief engineer and various subsystem designers, let alone Chang Yuanchao, who is a policeman. . In his concept, designing an airplane is basically like sitting in front of a table and drawing... So Chang Haonan said that he designs airplanes. In the eyes of his old father, he seems to be the one responsible for the main work. how to say. ?Although the process is outrageous, the conclusion is really right. Chang Jiayao has already become a student pilot. Although she is still a junior student, she still knows a little about the equipment she will fly in the future. Im not telling you, I heard that those planes were produced by Guizhou Airlines. When have you been to Qian Province? ?Although she didn''t think Chang Haonan would talk nonsense about this kind of thing, after all, there were outsiders around. ??But I also feel that it is not consistent with the information I know... ?Chang Haonan suddenly felt that his sister knew a lot, so he continued to answer truthfully: Guihang is a small and remote factory in the aviation industry. It is somewhat difficult to handle such a complex aircraft design alone, so I was asked to serve as a foreign aid. Invite me all the way from the capital? Chang Jiayao didnt know for a moment whether she should believe it or not: Rongcheng and Haojing are closer, right? Chang Hao Nanxin said that Rongcheng and Haojing would have to invite me over, so of course it would be better to come to me directly. ??But this part of the content involves the J-10 and JH-7, and it is definitely not easy to say. So I had to change my explanation: "Of course it''s okay to hire people from Rongcheng and Haojing, but the tool used to design the aircraft, uh... you can think of it as a computer software, was developed by me, so it''s definitely better to find someone else than me. I happened to be free at that time. , just helping out." Fortunately, he has done enough things over the years, and it can be explained by just finding something. So thats it? Chang Jiayao reasoned based on common sense that it seemed a bit unreliable for a doctoral student who had not yet graduated to do such a big job. But this statement can indeed explain a lot of things. You can design a complete aircraft and it has already been put into use. It seems reasonable to equip it with a car and an entourage... ??And if this is true, then it seems that she will be able to fly a plane designed by her brother in a few years... ?Its quite exciting to think about it. ??Zhou Li, who finally woke up from her stupor, only listened to the second half of this conversation. Naturally, it was impossible to understand it completely, but she also roughly understood the core meaning, which should be that Chang Haonan is very powerful... ?If this issue continues to be entangled, it will involve parts that cannot be discussed in detail. Fortunately, at this time, the car had already arrived near Xidan. Okay, Tiananmen is coming soon, look quickly. ?Chang Haonan pointed out the window and decisively diverted the attention of the other people. ?At the same time, Zhu Yadan also gradually slowed down some speed. Its actually not much different from a normal street here during the day. Its better to come at night or in the morning. The museum, the General Assembly Hall and the Memorial Hall are all open. If you come here another day and watch the flag raising, you can go around together... Chang Haonan sat on the small bench in the back row and introduced the other three people who were curiously looking out the window. Although this was said, it was obviously different for people who were here for the first time, so Chang Jiayao still stared outside: Brother, have you visited all these places? "I" Chang Haonan studied at Beijing Airlines for eleven years in his last life, so he has naturally been there. But in this life, I have been running around since my third year in college, so naturally I dont have that much free time: I havent been to several other places, but I have been to the Great Hall for a meeting. It was held in the Great Hall? Zhou Li and Chang Yuanchao looked at Chang Haonan again. In fact, the General Assembly Hall is a place that has been opened for commercial operation. As long as you spend money, you can basically hold meetings or have a meal there. But not everyone knew about this even more than 20 years later, let alone the 1990s. Especially the old couple who were born in the early years of the founding of the People''s Republic of China have a somewhat reverent view of these important places in the capital. ?Chang Haonan can enter the Great Hall for a meeting. In their opinion, that is a more powerful thing than designing an airplane. Well I received several awards here last year. I still have the certificates at home. Ill show them to you when I get back. ??Although the National Science and Technology Progress Award is considered top-notch in the circle, it is not a big deal to people outside academia. As an award that is evaluated every year or more than one, its social influence in general is not even as good as the May 4th Youth Medal that Chang Haonan won earlier. ??Moreover, the projects he won awards for were all secret and difficult to publicize, and he couldn''t elaborate on them over the phone. So after receiving the award and returning home, he only told his family vaguely. Now that I mentioned it again, the two people next to me remembered: The awards you told us about last year were...received in the Great Hall? ?Chang Yuanchao felt that his whole body was drifting, as if he was dreaming: When you told me about it, I thought it was just a school award... ?Chang Haonan also had no choice but to hold up his forehead: Didnt we all say it at the time? Its called the National Science and Technology Progress Award. How could it be issued by the school But Chang Yuanchao also had reasons to say: You told us about the national scholarship before. Isnt that also awarded by the school? And you just mentioned a few words at that time, and we didnt expect such a big battle..." how to say It does make sense. ?Although Zhou Li is a high school teacher, she has never attended a serious university. The difference between middle school and university is really exaggerated, so it is normal not to know this. Not to mention Chang Yuanchao himself. Chang Haonan knew very well that he had never received a national scholarship in his entire life, and he had no memory of when such a thing was mentioned at home. I can only say that parents do remember a lot of things their children say inadvertently. ?While a few people were chatting, the car happened to drive to Tiananmen Square. It looks like the city gate tower is being renovated. I wonder if I can go up there in two days Chang Jiayao, who has sharp eyes, saw the scaffolding on the tower. Even if there is no renovation, the opening hours during the Spring Festival are very short, so it may not be possible to squeeze in... Chang Haonan also bent down and looked out through the gap: However, this year is the 50th anniversary celebration. There will be a celebration here, and my parents should be able to come over and watch it... Of course, it will definitely not be on the city gate tower, but on the stands on both sides..." Project 9910 is a secret, but the National Day military parade itself is not. ?Although it has not been officially announced yet, the media has already begun to warm up for this event. Zhou Li and Chang Yuanchao were both speechless. But from the eyes and expressions at that moment, we can still see the surge of excitement and ecstasy. ?Both of them have watched the 35th anniversary military parade on TV, but they never imagined that one day they would be able to watch it live. ?At the moment, he didnt even mean to say a few routine words of refusal, he just kept nodding. Chang Jiayao was happy for a moment, but then she realized that Chang Haonan was talking about her parents being able to come, not even mentioning herself... Not later "And me?" Brother, cant you forget me? Am I not your dearest sister? She turned around and looked at the happy family of three with loving parents and filial piety with trembling eyes. She just felt that she seemed a bit redundant in this car... The two people next to them finally recovered from the initial excitement and remembered that they had a daughter. Yes, Xiaonan, can you bring Jia Yao with you? If there are not enough places, the two of us... Zhou Li and Chang Yuanchao looked at each other. Obviously, both of them felt that if there were only two places, one should be given to their daughter. But the problem is that at this time, no one really wants to... After all, watching the military parade live is probably only once in a lifetime. "she" Chang Haonan had previously discussed with Zheng Liangqun the arrangements for the air review of Project 9910. In addition, since the JJ-9 has officially entered service, he naturally knew that there would eventually be an echelon of training aircraft. ??Just now when he heard Chang Jiayao say that he got first place in the aviation experience class, he estimated that his sister would be included in the final flight formation. But this matter is definitely a secret that cannot be leaked, so I have no choice but to say: "After all, their schools are different. If she is free then, she can come if she wants to..." Chang Jiayao relied on her sister''s intuition and thought that Chang Haonan seemed to be hiding something from her. ?But anyway, I have been guaranteed, and I will no longer worry about it soon: The military academy is also a university. There is a holiday on October 1, so how could we not be free? Remember to leave a place for me when the time comes... Let my classmates be envious of me after I go back..." ?Chang Haonan didn''t know what to contact for a while. In the end, he just nodded and didnt reply. I have a bit of hypoglycemia today and I really cant write anymore. When I was walking to the dormitory just now, I almost fainted on the road. At that time, I began to summarize my short life in my mind... (End of this chapter) Chapter 664 The organization has made a decision and is ready to take the initiative! Chapter 664 The organization has been decided and is ready to take the initiative! ?It took me a while to go around Chang''an Avenue, but in the 1990s in Beijing, and it was still noon, it was not as congested as it would be in later generations. So, the family arrived home before lunch. Zhu Yadan had already arranged the pass the day before, so there was not much delay along the way. ??But its not difficult to see it after passing two checkpoints in a row. Brother ?Chang Jiayao looked through the rearview mirror at the gun-toting sentry that was gradually receding behind the car: Why does it feel like the place you live in has tighter security than our school? We are a deputy corps-level unit with only one sentry at the door, and the sentry is separated from the bullets..." ?Actually, Chang Yuanchao felt something was wrong just now, but he just kept it in and didn''t say anything. ?Now that Chang Jiayao asked this question, he followed up with the following sentence: Xiao Nan, I remember you said before that your school allocated you a house in a residential area. Have you moved it from the dormitory? ?When I called two days ago, Chang Haonan said that he had just moved. Considering that about a year ago, he also mentioned that the school allocated houses, Chang Yuanchao could only understand that his son had moved from the dormitory to a new community In the concept of a dual-income family like him and Zhou Li, it sometimes takes several years to allocate a house, even after waiting for the house to be built and getting the key, even after qualifying for a quota. Calculating the time, it seems to be about this time. On the other hand, Zhou Li next to her frowned: But it doesnt seem to be the location of their school... Will the family area study so far away from the school..." Chang Haonan has nothing to hide about this kind of thing, but it was just inconvenient to explain it on the phone before: No, the house assigned to me by the school was given by our dean who gave up his place, so it is an existing house and I have lived in it for two years. Ouch! Chang Yuanchaos eyes suddenly widened: Such a good leader is rare these days. You have to maintain it well and not make others feel left out. Its the holidays, so just these few days...walk around more..." Yes, you told me this happened earlier. When I come here this time, I will bring some local products from my hometown..." ?Zhou Li also echoed beside her. Well...I think Ive taken good care of myself. ?In fact, Tang Lintian has now been officially promoted to executive vice president of Beijing Airlines, and Chang Haonan has not seen him for a while. ??But considering that Beijing Airlines became one of the first 10 "985" universities and C10 alliance members last year, he felt that Dean Tang, no, President Tang should be quite happy... As for walking around during festivals and other festivals... Indeed there are. ??Its just that the active-passive relationship may be a little different from what the couple thought. Thats good, thats good Zhou Li had not yet realized the seriousness of the matter, and said in a pleased tone: We are both worried that you have been in school all the time and dont understand these things when you go out into society..." ?Zhu Yadan, who was driving next to him, almost laughed when he heard this. He suddenly remembered the first time she met Chang Haonan. It was the time I went to Jiangcheng Heavy Machine Tool Factory for a mission. ?Of course there are also a series of details observed in daily life. For example, the relationship between Chang Haonan, Ding Gaoheng and others. In general, although he cannot be regarded as a scheming person, he is definitely not a novice. At least the language arts area is full. ?Of course, in most cases, there is no need for him to demonstrate this ability at all. It can only be said that the child in the eyes of parents is never the same person as the actual situation. There was no words to say all the way, Until the car stopped steadily near Chang Haonan''s new residence. After getting out of the car, the first reaction of the old couple and Chang Jiayao was to look around. ??But the vegetation around this place is pretty good. At a glance, you can''t see any residential areas at all. ?There is only a row of two-story western-style buildings in front of us. The front is divided into several courtyards, indicating that the entire building should belong to several families. ?This style of house is not uncommon in rural areas or county suburbs. ??Living conditions have gotten better and better in recent years, and many people are building multi-story buildings like this. But this is the capital... Let alone the capital city, even in Liucheng, if you want to buy such a house, you will probably have to... I really dont know how much it costs. But it will definitely be expensive. Chang Haonan, who got out of the car behind him, had already started to get his luggage from the trunk. Lets go, its just across the road. He picked up two large bags, but because his hands were occupied, he had no choice but to raise his chin towards his home position. ifier This is indeed a bit beyond the imagination of three people. Fortunately, its not so frightened that I cant walk. ?It''s just that when Chang Haonan took the key and opened the door, he felt a little bit as restrained as Grandma Liu did after entering the Grand View Garden. This house...should be quite expensive, right? Chang Jiayao looked at the living room, which was elegantly and simply decorated but not shabby. Her voice was much quieter than before. This...is also given by your school? Zhou Li was still standing at the door with Chang Yuanchao. She didn''t dare to go in for a while, she just felt a little dizzy. Even though she knew that there was a big difference between college and high school, this was too much. It doesnt seem right. Its definitely expensive, but I dont know exactly how expensive it is. ?Chang Haonan placed the other two pairs of slippers that he had prepared long ago at the door: This house is not mine in principle, it is just approved by the organization for me to live in. Hearing what he said, the two of them relaxed a little. ?Originally, according to the normal development of the plot, Chang Haonan was going to simply gather things and then reveal his only public identity, that is, the general manager of Torch Group. ?Then lets exaggerate a little bit about the high status of this position, and rationalize the behavior of organizing myself to have a villa to live in. ?Let this matter be over. ??But what they didn''t expect was that Zhou Li and Chang Yuanchao stopped asking after hearing him say that the house was issued by the organization. What the two of them were worried about before was simply that their son would be tempted to go astray. However, compared with what Chang Haonan showed before - tens of thousands of dollars to buy a house in the county, a car with an entourage, and a guarantee that they could go to the capital to watch the military parade, this was tangible and tangible. The room above is really shocking. ?Even if you really go astray, Im afraid its impossible to make it out in such a short period of time. So, no matter how late the couple may be, they almost feel that Chang Haonan must have made some special contribution to the country. ?Thinking of this, the worries and uneasiness in my heart naturally disappeared, and the joy that had just been deliberately suppressed finally took over. As a parent, once you reach this happy moment, all you think about is... Xiaonan Zhou Li put on her slippers and placed the large and small bags she was carrying on the wall of the living room: You now have a house and your career seems to be doing well. When will you consider finding a partner? ?Over there, Chang Haonan had just taken off his coat, and his mind was rapidly thinking about how to explain Torch Group''s business and its importance to the country in simple and easy-to-understand terms. As a result, I directly heard such a completely unexpected question. The whole person was stunned on the spot for several seconds. ?But it makes sense when you think about it. Even Ding Gaoheng had come to the government to urge the marriage before. How could a parent not be in a hurry? People in this era are starting families relatively early. Although they dont get married as soon as they reach adulthood like in the old society, Chang Haonans age of twenty-four or five is definitely the right time. Well...its not urgent yet. He could only wave his hand: I havent graduated with my Ph.D. yet, so my career has just started. Lets wait until it stabilizes in a few years. This reason is definitely useful at home. After all, he relied on this rhetoric to delay him for several years in his last life... Sure enough, after hearing Chang Haonan''s answer, although Zhou Li obviously wanted to say something more, she finally changed the subject: Thats fine, Im still a few years away from retirement anyway. If you really have a child now, who will take care of it is still a problem... Good guy. Chang Haonan had reason to suspect that his mother had probably already thought of the name of her grandson or granddaughter, but she just hadn''t told him yet. But no matter what, the wave in front of us has passed. ?Including Chang Jiayao, who had just heard that he was being urged to marry, and had hid in the bathroom. At this time, he also moved out of it step by step - She has just turned 20, and its almost time... "elder brother" Chang Jiayao''s thinking is definitely different from that of her elders. She is still interested in this house and what Chang Haonan is doing. ?But just as she opened her mouth to say a word, she was interrupted by a ringing sound from the second floor. Wait a minute, I have to go up and take a call. After saying that, he got up and quickly went upstairs. ??The villa''s external telephone is next to the sofa on the first floor. In his bedroom on the second floor was the red intercom phone. He had just moved here less than three days ago, and not many people knew the villas internal number. So, there must be something urgent. The phone is not at Chang Jiayao frowned as she looked at the white telephone in front of her and Chang Haonan''s back. She has also realized it. ?There are some things that you may not be able to ask. At the same time, Chang Haonan, who had already reached the second floor, took a look at the caller ID. The landline phone in Ding Gaoheng''s office. He couldn''t help but take a deep breath: Hello, Director Ding, Im Chang Haonan. Xiao Chang. Ding Gaohengs trembling voice came from the other end of the phone, as if he was suppressing his excitement: The superiors have approved in principle the idea of ??proactively carrying out limited operations in the Balkans that you proposed yesterday, but we need to know more detailed information. "In particular, you proposed that the old radar can be upgraded to a passive positioning radar by replacing a few core components without changing the antenna. Is this number of components that need to be replaced safer for smuggling? " (End of this chapter) Chapter 665 Modern warfare is artillery battle! Chapter 665 Modern war is artillery war! It is actually normal for superiors to have concerns in this regard. In fact, the passive positioning radar deployed on land is not necessarily a high-end product in itself. ?For example, the 70M6 "Volga" early warning radar has a passive detection function and can even be considered a model close to shelf products. But in the past, the common function of such things was to provide mid-range early warning of ballistic missiles, anti-stealth and anti-radiation, which could only be said to be secondary functions. ?Not only will the software system not be optimized in this direction, but corresponding tactics have not been considered for the hardware. Therefore, in order to ensure the detection distance and extend the reaction time of one''s own nuclear counterattack, a radar antenna is generally deployed permanently like a building or even a hillside. Hong Kong has also researched similar early warning equipment in the past, and the sizes are basically similar. ?It is indeed extremely difficult to "smuggle" something of this size to another country without crossing a third country. Therefore, when people of this generation first heard that Chang Haonan wanted to change an ordinary vehicle-mounted fixed radar into a passive positioning radar, their first reaction was definitely confused. ??It is also natural to subconsciously think that this may be a project with a very heavy workload. ?However, the focus of the algorithm developed by Chang Haonan was "multi-point distribution". If you want to achieve passive positioning with a single array, you will naturally need a huge size to calculate a sufficiently accurate angle difference. But because the whole idea was originally intended to be used on an aircraft and two missiles, after transplanting it to the ground, the signal source and at least two receiving sources can be completely separated. ?This is why he and the 14th Institute of Electronic Science and Technology chose the P18 radar, which is not familiar to China, as the target of transformation. This type of early warning radar is extremely common in the countries of the original Warsaw Pact camp. Even more than 20 years later, you can easily take out a lot of them, and even out a few of them and modify them into passive radars, which will not affect the early The early warning capability will not produce too eye-catching movements. ?Therefore, faced with Ding Gaoheng''s question, Chang Haonan looked outside and after confirming that his family was not nearby, he answered: The specific hardware operations related to radar modification are carried out by the 14th Institute of Electrical Engineering, so if you need to compile a specific transportation list for Lao Wu, you have to contact them. "But from the perspective of the basic algorithms and signal processing principles that I am responsible for, since it basically does not involve changes to the antenna itself, the total components required to improve the two radars are mainly the feed and filtering equipment at the back end of the antenna, as well as the output end Digital signal processing chips such as DSP and FPGA required for data processing. "There are indeed a large number of components such as chips and circuit boards, but they can be shipped directly in the name of personal computer accessories, even with great fanfare. After all, it is not easy to distinguish these components without taking them apart and inspecting them one by one. The difference between military-spec chips and desktop products. The main thing that is more troublesome is those analog signal processing and conversion things. Because they are relatively large, if a knowledgeable person can see them at a glance, you need to be particularly careful..." Need to modify two radars? The questions on the other end of the phone were obviously more in-depth and detailed. At least two, actually preferably three. For Chang Haonan, these technical route questions have been repeated countless times in his mind, and he can naturally answer them fluently: "However, one of them only needs to transmit signals as usual. The improvement is very small. At least two of them need to be changed to passive radars. Only by forming these three radars with exactly the same antenna parameters into a whole and then deploying them dispersedly can this be achieved. Signal detection in various environments. "Of course, if there is a relatively strong and stable signal source within the airspace itself, such as a relatively close early warning aircraft or a naval ship with regional air defense capabilities, then it does not matter if there is one less radar that actively transmits signals. After all, this radar It is very dangerous in itself and is likely to be destroyed by the opponent''s air defense suppression operations. " "The reason why I suggest retaining it is because I am worried that the other party will adopt stricter electromagnetic signal discipline. After all, the party we want to help does not have a strong air force or long-range strike force, so the opponent does not necessarily need to maintain a high level of electromagnetic signal discipline all the time. Air warning level..." After all, it was a confidential insider exclusively for high-level leaders, and he had already communicated with the other party before, so Chang Haonan did not go through all the twists and turns and directly analyzed the actual situation of both parties in the conflict. His suggestions are naturally not just speculations, but have been verified by "future history". Throughout the entire Allied operation, due to the relatively complex ground environment and proper preparations for electromagnetic countermeasures, the efficiency of the coalition''s air defense suppression operations was extremely low, and the defending side''s radar could remain switched on for a long time even until the middle and late stages of the conflict. without being destroyed. ?In this context, deploying an additional controllable friendly signal source is basically a matter of no harm. "okay I know" Ding Gaoheng replied in a "That''s it" tone. In fact, according to Chang Haonans understanding of him, the step of communicating on the phone should end here. But today, Ding Gaoheng seems to be particularly interested: Also, Xiao Chang, I remember you said two days ago that in addition to detecting invisible targets, you can also directly shoot them down? Well at least give it a try. Chang Haonan naturally has this idea, but the stealth fighter has never been successful, and his set of things has not even been tested, so it is definitely not easy to say too harshly: "In my work over the past few years, I have found that many people, even comrades in the aviation industry system, deify stealth aircraft and even fear difficulties. In fact, our opponents often think so too. It has even become part of their strategic intimidation. "If we can take advantage of this opportunity to get some kills or even injuries before they become more vigilant about anti-stealth methods, I think it will be a huge positive incentive for the perception and confidence of our entire society. Ding Gaoheng seemed to be shocked by Chang Haonan''s stern statement. It took almost half a minute before he replied: "However, the nature of electromagnetic waves of long-range warning radar determines that whether it is signal accuracy or data update frequency, it is unlikely to support terminal attacks by air defense weapons. If you really want to achieve a shootdown, you will need a hard-kill method. " Or are you planning to smuggle in the new missile developed by the Institute of Aerospace Technology? ?This question stunned Chang Haonan. ?Of course I didnt ask him to stop him. But as a leader with a background in technology and guidance and navigation technology, Ding Gaoheng has almost never asked such detailed tactical questions in the past. ?However, he quickly came to his senses: Missiles are certainly inconvenient to smuggle. "First of all, the nature of this thing is different from radar components and self-defense interference systems. In any case, it is a serious weapon and equipment. We still have to be just in case. It would be really bad if we were stopped on the road. explain." Secondly, even if we dont consider the risks, that model is still in the development stage, and even the prototype bomb has just been built. After all, missiles are pyrotechnics and different from radars. It is absolutely impossible to use them without test firing..." After hearing that Chang Haonan was not planning to send out the missiles as well, Ding Gaoheng seemed to be relieved: Then what do you think For Chang Haonan, this is completely a score-earning question: "They should have a lot of S125 "Pechora" air defense missile systems themselves. The most important thing about stealth aircraft is its suddenness. If the early warning radar can continue to effectively detect the target, even if it cannot lock, it can also let the fire control radar of the air defense missile To indicate the direction, as long as you grab the opponent''s aircraft and open the magazine, or turn at a large angle, the time window increased by RCS is still enough to complete a shot. " "Taking a step back, even if the opponent uses electromagnetic interference to invalidate the missile''s command guidance, we can still return to the most primitive method, through voice reporting and manual work, and try our luck with large and medium-caliber anti-aircraft artillery. Anyway, we are ahead Its not like I havent considered similar tactics in recent years Modern warfare is artillery warfareanything that can pull out pus is a good ointment, not a shabby one. At the end of the sentence, he even had a bit of a joking tone: Rather, if the stealth fighter is really shot down by anti-aircraft artillery, it will be embarrassing all over the world..." After Operation Desert Storm, China, which was frightened by the coalition''s electronic warfare, realized that the existing old-fashioned anti-aircraft missiles were probably not much different from fire sticks, so it rushed to import S300 anti-aircraft missiles and dragged out several more divisions of them. 100mm and 57mm large and medium caliber anti-aircraft guns emergency. ? Among them, the 57mm anti-aircraft gun was finally used until about 2018 before it completely bid farewell to the stage of history. Back to basics, this kind of thing is the least affected by electronic interference. ?Of course, it will definitely not be used in the end. ?However, the ideas can still be used for reference... (End of this chapter) Chapter 666 1999, not a peaceful start (the new month Chapter 666: 1999, not a peaceful start (its a new month, please vote for me~) ?Although the next few questions Ding Gaoheng asked were really strange, the content was not too complicated. They were basically things that Chang Haonan had already thought about. So they didnt chat for too long, and the two ended the conversation. Alas...what a troubled time it has been. ?Chang Haonan looked through the window of his bedroom on the second floor and looked at the streets in the distance that were decorated with lights and colorful decorations and decorated like a Spring Festival atmosphere, and felt a little emotional in his heart. Although China in this era is generally in a weak state under pressure from all sides, it is still a nuclear power after all. For ordinary people, no matter rich or poor, they can always live a stable life. But not every country is so lucky. ?Just like what he just mentioned on the phone... ?He put down the receiver, calmed down for a while, and then left the bedroom. ?But when he returned to the living room on the first floor, he only saw Chang Jiayao sitting on the sofa watching TV. ??It only took 20 minutes to make a phone call. Why did the old couple disappear? Jia Yao, where are your parents? Chang Haonan asked as he went downstairs. Dad is looking at your garden outside. Im probably studying whether I can grow some vegetables or something. Chang Jiayao crossed her legs on the sofa and held a cushion in her arms. At this time, I had just finished eating a handful of melon seeds. I looked at my brother who was walking over, then lowered his head and looked at the palm of his hand. After hesitating for a moment, he still stretched out his hand with a look of pain on his face: You either? ??A few years ago, Chang Haonan would have been rude. But now we still need to keep our focus, so we shook our heads: Forget it, you can eat it. Chang Jiayao was beaming with joy. Judging from her appearance, she probably wasnt prepared to give it to her from the beginning. And you havent finished what you just said. ?Chang Haonan sat next to his sister, took the remote control from the latter''s hand, and switched directly to the news channel. "oh." Chang Jiayao just stuffed a handful of melon seeds into her mouth, so her speech was still a bit unclear: Mom felt that the house seemed empty and there was no feeling of celebrating the New Year at all, so I just asked Sister Yadan where she could buy New Years goods nearby and went out to buy some things. Chang Haonan brought another cushion over and held it cross-legged in his arms like Chang Jiayao, but his body was much less flexible, so he didn''t move as freely as Chang Jiayao: Speak of this. Even though he had just started speaking, there was already a hint of smile in his tone: When we were at the airport just now, my mother probably recognized Yadan as a man when she first saw him. Whats wrong with this? It would be strange if I could recognize it immediately at first sight. ?Chang Jiayao knew Zhu Yadans true situation, but she didnt have time to tell her parents before. Thats not the point Chang Haonan waved his hand: The point is, the look in my eyes when I looked at my mother was a bit like she was looking for a son-in-law..." Cough cough cough Chang Jiayao almost coughed up the melon seeds she just ate... At the same time, in the Office of the Director of the Commission of Science, Technology and Industry for National Defense. Ding Gaoheng, who had also just put down the phone receiver, turned his chair and looked at another soldier with the same rank as him sitting next to him. Compared to Ding Gaoheng, who has an elegant temperament and looks more like a scholar, this image is obviously more in line with people''s perception of a veteran. The former also had several notes on hand with a series of questions written on them. ?If you look carefully, it is the last few people I asked on the phone just now. Obviously, this conversation was similar to the one Du Yishan called Chang Haonan at the Science and Technology Commission more than two years ago. Only this time, Ding Gaoheng became the "mouth substitute" who was responsible for the dialogue on the surface. Old Fu, whats up, I didnt bluff you, did I? ??As he spoke, he leaned back on his chair, took out the cigarette case from his pocket, pulled out two cigarettes, and threw one of them to the other party: Do you think Xiao Changs idea is tactically feasible? Fu Youquan, known as Lao Fu, took the cigarette into his hand, took out his lighter and lit it: In war under high-tech conditions, tactics must ultimately rely on technology. Fu Youquan replied: If you can guarantee that what he said is that the idea of ??improving the passive positioning radar based on the P18 radar for anti-stealth is technically feasible..." ??Although Ding Gaoheng just took out two cigarettes, he did not light his own. He just smelled it and clamped it to his ears. Hearing this, he raised his hand and interrupted the other party: To be honest, our country only has P18 radar samples obtained from Eastern Europe in the past, and there is no model that is actually put into use, so there is no way to test the hardware domestically, and there is definitely no way to guarantee this. However, the idea given by Xiao Chang, I am willing to believe in its feasibility from both a personal perspective and from the perspective of the Science and Technology Commission. Furthermore, as he just said on the phone, and as I told you before, our channels overlap with those of the Russians. As long as we are careful, even the person receiving the message will not know who we are. "If the thing succeeds, we will keep the documents here anyway, and we will claim them when we are no longer afraid of the Americans. If the thing does not succeed, it has nothing to do with us. It was all done by the Russians. Anyway, we will lose two machines. For radar components, with our current budget level, we can still afford this price..." Obviously, Ding Gaoheng''s ideas are more complete than Chang Haonan''s when it comes to preparing for backup. In other words, the heart is darker. Fu Quanyou stared at the opposite side for a while, then nodded: "I have heard a lot about this young comrade''s ability in the General Staff. During the dike-building operation the year before last, he was mentioned in the post-war summary statement submitted by the navy and air force, saying that he was the core of mission dependence. The equipment is all made by him..." After saying this, he was silent for a while, put the cigarette in his mouth and took a deep puff, as if he had made some very important decision: In this case, I agree to sign the back of your report! Thats right Ding Gaohengs serious face just now suddenly showed a smile: For some things, you still need to be more courageous... ?As the leader in charge of the development of science and technology, although he is not unable to make suggestions in aspects related to combat, his persuasiveness and voice are still not strong enough. Moreover, if a person directly comes forward, it is suspected of fighting for power and gain. ??But if we can also win over Fu Quanyou, who is the general manager, we will kill two birds with one stone, and there will be no worries in these two aspects. Ive been hesitant about this before, and its not just a matter of courage Fu Quanyou has a military style after all. After making the decision, he no longer hesitated and explained straightforwardly: The main thing is that the idea proposed by this young comrade really doesnt seem to be a temporary idea. Im afraid it has been planned in private for some time. If nothing else, I remember you mentioned a device specifically designed to interfere with GPS-guided weapons. What is it called...what..." Soft-kill self-defense countermeasure system. Ding Gaoheng has already memorized this name. Yes, thats it. Fu Quanyou nodded and continued: At the time, I thought it was just a precaution, but now it seems like its a cover to expand the scope of the conflict to prevent the other party from suffering losses and getting angry When he said this, Ding Gaoheng across from him suddenly felt... It seems to make sense. ?The office fell into silence. "well" What a troubled time This update is from yesterday. Since today is a new month, it has been moved to 0 oclock. Please vote for me~ (End of this chapter) Chapter 667 Chang Haonans recruitment Chapter 667 Chang Haonans Advancement No matter what, the New Year will definitely pass. In the next few days, Chang Haonan took a very "thorough" rest. ? Putting work aside, even the red phone in the bedroom very wisely stopped ringing, leaving him in a state of silence for several days. You can spend some time with your family by the way. And took a day to bring some gifts to visit Ding Gaoheng and Du Yishan. Especially the latter. ? In the past year or so, Chang Haonan has spent more than half of his time on business trips to different places across the country. Even during the few times he was in the capital, he basically stayed at the Torch Group instead of Beijing Hang University. Naturally, he had no chance to meet with his mentor. In fact, at the beginning, the reason why Du Yishan "robbed" Chang Haonan from Liu Hongbo was mainly because he felt that the latter needed a larger platform to display his talents. As an academician of both academies, the various resources that Du Yishan can provide are not comparable to those of Liu Hongbo, an ordinary young professor. Its just that the plan is wonderful, but it cannot keep up with the changes in the actual situation The apprentice is really a little too ambitious. Commission of Science, Technology and Industry for National Defense, National Science and Technology Commission, General Armament Department, Chinese Academy of Sciences ??Although he hasnt received any particularly formal title because he didnt graduate, Chang Haonans connections already exist in departments related to scientific research. By the time he graduates from the undergraduate program and enrolls as a doctoral student, there is almost no need for him as a teacher to provide any resources. ?Du Yishan was happy to have his leisure time and directly acted as a hands-off shopkeeper, only acting as a ruthless signature machine when necessary. However, for Chang Haonan, the etiquette is still indispensable. Since everyone is here, its natural to stay and have a meal. When we sent you and Xiao Yao to participate in the August 3rd Project, we originally had the idea of ??cultivating future aviation industry talents in advance and letting Lao Yang show you the world. Du Yishan rolled a plate of sliced ??mutton into the steaming copper pot and said to Chang Haonan who was cutting tofu with a knife in his hand: Who would have thought that the future talents of the aviation industry have indeed been trained, but they are not training you, but you are training others, and by the way, you have brought Lao Yang and others to see the world..." The Lao Yang mentioned by the former is naturally Yang Fenghata, the chief designer of the 83rd Project. Thats not entirely true. Chang Haonan put the tofu cut into pieces on a plate, and then mixed hot pot dipping sauce for Du Yishan and himself: That time I went to Shengjing, Mr. Yang really helped me gain a lot of experience. In the past, no matter how good we were at learning knowledge and no matter how slippery we were at designing, we could only do it on paper. Project 83 was the first time that my senior sister and I were really exposed to the complete aircraft design process. If it hadnt been for this opportunity, Im afraid my potential wouldnt have been unleashed so quickly ?His answer is absolutely sincere. After all, the system initially provided a total of 10 scientific research points as funding to start. ??He also used up more than half of it for course design. ??If I hadnt gained a lot of points and experience while participating in the 83rd Project, I would have definitely missed many opportunities in the future. The most direct one is the cooperation with Europe in early 1997. Without the anti-icing technology provided by Chang Haonan as a bargaining chip, even if it finally succeeded, it would be impossible to obtain such unfavorable conditions as mutual recognition of regional aircraft airworthiness certification. ??Another example is when developing the TORC Multiphysics software, it is impossible to directly use ten times the points to get the result, and the development pace of Torch Group will definitely slow down. ?It is even less possible to further expand cooperation with the EU, dig holes for Japanese companies, and expose their systemic fraud... In short, these are all linked together. ?Du Yishan just smiled and did not continue to dwell on this topic. Instead, he changed the topic and asked: According to the two-year training plan, you will graduate this summer. What are your plans after that? I have been thinking about setting up a joint laboratory with Beijing Airlines in the name of Torch Group, and I should choose to stay in school and serve as the laboratory director. ?Chang Haonan has told Yao Mengna about this matter before, and naturally there will be no change now: But the file should be uploaded to the Torch Group, otherwise the leader of my group will always be a part-time contractor, which is a bit awkward..." While the two of them were saying these words, the mutton in the hot pot was already cooked. Du Yishan first gave Chang Haonan a chopstick and affirmed at the same time: Well, its right to focus on the company. With the current influence and development momentum of Torch Group, it is impossible to remain a second-level state-owned enterprise affiliated with the Academy of Sciences. It will be a matter of time before it is upgraded to a state-owned enterprise directly under the central government, and the room for improvement is much greater than in a school. ?This statement was a bit beyond Chang Haonans expectations: I have no plans to expand the scale of Torch Group in the short term. If it is upgraded to a centrally-controlled enterprise... wouldnt it be a bit too small? Du Yishan shook his head: This thing is not about scale, but mainly about level. When the Torch Group can be upgraded depends on when you can be promoted to the top level of the corresponding central unit. "In the past, before the de-administration of state-owned enterprises, there was a hard age threshold for this, and you had to live for a long time. But now... because corporate managers theoretically do not have administrative levels, they only receive public service benefits, so they use Not a few years. After finishing speaking, he swallowed the mutton in his mouth, paused for a moment and then added: I guess its a matter of deciding whether to become an academician with you Chang Haonan doesnt feel sleepy anymore when talking about this topic. He is not a saint. Just because he is not interested in money does not mean he is not interested in other things either. The title of academician is very attractive. Of course, it must be more subtle and not too naked: "Being an academician sometimes depends on luck..." As a result, Du Yishan, who was serving the second plate of meat, sneered: "Normally speaking, it does have something to do with luck, but if you still rely on luck in this situation, you would be looking down on me, Lao Ding, Lao Song, Lao Liu and the rest of us. And when it comes time to nominate you, there will probably be more Several old academicians also want to sign..." Chang Haonan thought about it and felt that if the names of these senior academicians were listed together, they would indeed have a hundred million points of weight... And Du Yishan continues: "Of course, this thing also depends on the timing. It is best to wait until a key project you are chairing is launched that year or the following year. There are still places. If the academicians of the Department of Mechanical and Vehicle Engineering have been in better health in the past two years, there is no Those who have passed away will have to wait..." In short, although it was just a casual chat, it really made Chang Haonan look forward to it. ?Just like that, New Year''s Eve arrived soon. ?After taking over Chang Yuanchao and Zhou Li, the most obvious change is that this house finally has a bit of a "home" feel. In the past, whether it was the unit building next to the school or this townhouse, it was more like a dormitory... He didn''t even start the cooking. In fact, strictly speaking, the Spring Festival holiday has always been excluded from New Years Eve. ? Its just that there is nothing to strengthen the sense of service in this era. Except for a few indispensable places, most units turn a blind eye around the New Years Eve. ?Early in the morning, father and son Chang Yuanchao and Chang Haonan were rushed outside to post Spring Festival couplets and hang lanterns. Zhou Li and Chang Jiayao began to prepare various raw materials for the New Year''s Eve dinner. By the way, Xiaonan. ?Chang Yuanchao got down from the stool, walked a few steps further, and after making sure that the angle of the couplet he posted was OK, he came to Chang Haonan again: "As you said before, you gave up your housing quota to your dean. You should go out and walk around during the New Year, right?" "Um" Chang Haonan had just hung up the lantern and was about to try to see if it could light up normally. He turned around after hearing his father''s question: It depends on the situation, if nothing unexpected happens He was only halfway through saying this when he saw a small car approaching from a distance and slowly stopping at the door. A strange yet familiar figure emerged from the driver''s seat. Looking carefully, it was Tang Lintian. Say Cao Cao Cao Cao has arrived ??What Chang Haonan wanted to say just now was "if nothing happens, he will come over." Now even the second half of the sentence is omitted. Happy New Year, Xiao Chang! ??Tang Lintian took out a few gift boxes from the back seat of the car and handed them to Chang Haonan: By the way, congratulations on moving to your new home! ?Beijing Airlines can now be rated as the first batch of 985 project construction schools. Not to mention all, at least 60-70 achievements belong to Chang Haonan. ??Tang Lintian now wants to support him, fearing that he will run away immediately after graduation. Principal Tang, youre welcome. Chang Haonan took a brief look at it, and after confirming that there was nothing that would cause a mistake, he took it from the other party: Im here just in time, why dont you come in and have a seat and have a sip of tea? ?Tang Lintian waved his hand: Forget it, just go in, Im just on my way out to do some errands, my family is still waiting, lets wait another day ?This statement is obviously an excuse. Is there anything else that needs to be done in a place like this on New Years Eve? Obviously he came here on a special trip. As for why you didnt come earlier I guess I just learned about his move. The person just now was Looking at Chang Haonan returning with something in his hand, Chang Yuanchao was a little unsure of the identity of the person who had just arrived. After all, the other person looks to be about the same age as him, so he should obviously be an elder. But the relationship between the two seems to be... At this time, Zhou Li, who had been busy in the kitchen before, also came to the entrance. Well, thats what you just said, our Dean Tang. ?Chang Haonan handed several gift boxes to the old couple and motioned for them to take them in. Then he stood on the stool again and prepared to hang another lantern: But it should be Principal Tang now. ? One sentence put the two people at the door in a panic. Happy Chinese New Year. ?The principal brought something and visited the students homes? (End of this chapter) Chapter 668 Thousands of lights Chapter 668: Thousands of Lights ?It would be more troublesome to explain this matter in detail. Fortunately, Chang Haonan had prepared a set of rhetoric about the great influence of the Torch Group. It was originally intended to explain how various benefits, including this house, came about. ??Its just that I was interrupted from casting the spell at that time, so I didnt say it out loud. It just comes in handy now. Didnt I say before that I am still in charge of a company and have always had some cooperative relations with the school. ?Chang Haonan climbed up on the stool lightly and skillfully, and said while hanging another lantern on the edge of the door: For example, in June last year, Beijing Airlines was selected into the first batch of ten 985 project universities. The evaluation criteria include the schools scientific research results, social influence, and the amount of scientific research funds. "It just so happens that our Torch Group has sponsored many projects in the school in the past two years, and I personally handled many of them. It has helped a lot in terms of results, influence, and funding, so... the school leaders have a good relationship with me. ?Just like this villa, the things Chang Haonan talked about have exceeded the cognitive level of ordinary employees in the two counties, Chang Yuanchao and Zhou Li. So at the moment, I could only nod in confusion. ?However, judging from the common sense of human relations, the other party specially came to visit me on this day. I am afraid that the level of "okay" is a bit high. When Chang Haonan went home for the first time to bring gifts to the old couple, Chang Yuanchao wanted to wear the new watch in the most conspicuous position so that others would notice it, and then started talking about Chang Haonan. The main thing is, how could we have imagined before that our son has only been in college for... lets say six years, and he has already developed to this extent in the capital..." Even so far away, we never thought that Jia Yao would actually become a pilot Basically some canned drinks, cakes and the like, and two bottles of red wine, okay... When she said "not bad", she certainly didn''t mean to dislike the cheapness of things, but was worried that they were too expensive. Lao He said he had a junior high school degree, but in fact he didnt even finish primary school seriously. He can still start a business and make a lot of money. No matter how you say it, Xiaonan is a doctor Now I finally feel relieved. ?However, Chang Yuanchao is still very good at self-education, and he followed up with another sentence: However, if you think about it carefully, there are quite a few things that feel unreal in recent years. Zhou Li kept moving her hands and refused to admit defeat at all. She immediately said: Youre still talking about me, I dont know who was worried about Xiaonan not being able to resist temptation at the beginning ?Now that I was persuaded like this, I stopped worrying about it at all. I immediately put the dough in my hand into the basin with a "snap" and woke up, then covered it with a cloth curtain and hummed a ditty in my mouth. ??If it were just a few bags of cash or something, I would be in big trouble. "Actually... I''m not that worried. I understand Xiaonan''s character, but I just feel... it''s a bit unreal..." After entering the door, Zhou Li quickly lowered her head and checked the things in her hands. Zhou Li turned around and glared at Chang Yuanchao, but her tone softened and she said seriously: Having been an old couple for decades, Chang Yuanchao could naturally guess what the latter was going through just now, so he walked into the house while complaining. But since I bought a new house in the county and moved, I think about it less often. "There is also Lao He. He was laid off the year before last, and his wife also went south with others. But he just gritted his teeth and asked a few people to contract the factory. Now he has moved to the city with his daughter... " Seeing this, the latter nodded: "That is to say, among the people we know around us in the past few years, there have been a few children who have been admitted to college, but their development has been quite satisfactory... To be honest, in the past few years, we often talked about children''s problems when we got together. , now neither they nor I rarely discuss this topic..." Chang Yuan shrank his head, and his momentum immediately weakened a lot: "I... I have a purely occupational disease. I have been a policeman for a long time, and I subconsciously think more about everything I see... I just said casually that day, who can remember it until now..." "Sigh... I''d say you are the same. Your son is now successful, so you should be happy. Why are you so worried..." ?Zhou Li originally hoped that her son would be well, but it was a bit unfounded when Chang Yuanchao talked about it in the wind a few days ago. It happened to be at this time that Chang Haonan finished his work outside and pushed the door open while patting the dust on his hands. Then, a rag was stuffed into his hand: Go and clean the chandelier on the top of the living room and the tops of the cabinets next to it. I looked on the second floor before and they were all dusty ?Chang Haonan inexplicably felt that his mother was in a much better mood now than she was earlier in the morning, and she was not in a bad mood. He immediately moved a stool, stepped on it and started cleaning. ??Although he and Zhu Yadan had already cleaned up the house the day they first moved in, Chang Haonan''s own concept of "clean" and Zhou Li''s concept of "clean" were obviously not the same thing. The time when I was busy before, I just didnt let the latter talk about it. Well, New Years Eve is mostly like this all over the country. Busy, but also enjoying it. ?However, there are always some people who, in order to allow more people to have a good New Year, give up the opportunity to spend the New Year peacefully. At the same time, north of Yinshan Mountain, the northern plateau. ?In the snowy field, a convoy that stretches for several kilometers is slowly driving forward on the frozen road. ?Most of the vehicles in the convoy are 6*6 Dongfeng EQ240 trucks, and behind almost every vehicle is a four-wheel tractor with a gun jacket and a very different appearance. Obviously, this is a towed artillery unit. However, if you look closely, you can still find that the artillery in the entire team should be divided into two models based on the length of the barrel and the style of the trailer hub. ?In a BJ2020 jeep at the front of the convoy, a senior colonel officer wrapped in a green military coat in the co-pilot slowly opened his bloodshot eyes, raised his wrist and looked at his watch. "Ask the chief of staff behind us how far we are from the preset deployment position." He turned back and looked at the radio liaison officer behind him. This team belongs to the 4th Air Force Air Defense Mixed Brigade. An anti-aircraft force consisting of missiles and anti-aircraft artillery. The reason why they were moved hundreds of kilometers away from the base in the middle of winter was because a few days ago, the brigade headquarters suddenly received an order directly from the Beijing Military Region, requiring them to set off immediately to conduct an air defense warfare exercise with the neighboring radar troops. training. ??Moreover, it is specifically required that only large and medium-caliber anti-aircraft guns need to be carried, and no anti-aircraft missiles or fire control radars are required. So the brigade pulled out all the 100mm and 57mm anti-aircraft guns on hand and spent a whole day getting here. In fact, these two types of weapons were originally withdrawn from active service in the mid-1980s. It was only after 1991 that the Air Force, which felt that anti-aircraft missiles were not as reliable as fire sticks, reactivated these equipment. But due to years of storage, the reliability of these old guys has been greatly reduced. That is to say, the 4th Composite Brigade is located in a remote area, and there is nothing to do except training. Otherwise, at a time when the military has just begun to strictly control business operations, other troops may not be able to react so quickly. The chief of staff said that we are still about 15 kilometers away from the preset position and should arrive soon. The correspondent in the back seat raised his head and reported to the brigade commander Zhu Xuejun: Also, while you were taking a break, your superiors have already telegraphed the specific content of the drill. Hearing these words, the fatigue on Zhu Xuejuns face was immediately wiped away, and his whole body tensed up instantly: Hurry, send it here! I want to see what kind of complicated subject it is, and its so frustrating! The speed of a tractor-trailed heavy truck driving on unpaved roads in this kind of snow is actually very slow, not as fast as a person running with his legs running wildly. ?So, after about two minutes, a soldier trotted to catch up with the jeep and handed a cowhide folder in through the side window. ?Zhu Xuejun took it in his hand and opened the cover. However, the content inside was completely different from the long speech I expected. ?Only three short sentences. Simply put, it is to predict the direction and specific location of the target based on the data provided by the early warning radar, with an accuracy of about 1-1.5 kilometers and an update cycle of about half a minute. Relying on the cooperation of radio proximity bombs and timed fuses, without radar directly indicating the target, try to shoot down subsonic target drones attacking from different directions and altitudes. Let us run hundreds of kilometers just to shoot a few sets of target drones? ?Zhu Xuejun felt that his eyelids were twitching... (End of this chapter) Chapter 669 The “big” fireworks on New Year’s Eve Chapter 669 The big fireworks on New Years Eve The reason why such a slightly abrupt drill was conducted was naturally that the superiors had already agreed to the plan proposed by Chang Haonan and Ding Gaoheng after discussion and final voting. Even if you take some risks. After all, if it succeeds, the benefits will be too great. Since the end of the Cold War, the US military''s intervention operations around the world have basically not encountered any effective obstruction, except for the accidental defeat in Somalia. Whether it is Russia, its old rival, or China, which is now gradually regarded as a new rival, or even Europe, which has begun planning to become a separate world class, they can only choose to avoid its edge. ??If the Americans can be given a big blow at this juncture, even from a realist perspective, it will help to resolve the other party''s aggressive attitude in the final stage of WTO accession negotiations. After all, all the decent chips in the hands of the Donkey Party have been exhausted by the abstract behavior of the person in the white house. ??If the war card no longer works, you may even suffer unexpected setbacks. ?The only remaining cards are economic cards. ??At this time when the aftermath of the Asian financial crisis is still lingering, the only thing that can be quickly put on the table as an achievement in the remaining year is for China to join the WTO - ?That will directly bring several super large orders to high-tech companies in North America, and allow the urban elite and middle class to buy cheap industrial products produced in China. These groups of people are all the iron ticket warehouses of the Donkey Party. Even those traditional manufacturing companies that used to favor the Party can transfer their production capacity to China, which has a higher quality labor force and a stable society, thereby obtaining better profit margins and a surge in stock prices. This is naturally good news for China. Its just that the superiors considered it more carefully. ?Although the idea proposed by Chang Haonan is not a big problem, it is not as simple as it sounds to be implemented in practice. Especially based on the coarse target information provided by early warning radar, the use of anti-aircraft artillery to focus on a specific airspace for rough shooting was basically a skill that the air defense forces specifically practiced during World War II. ??Although as a backup just in case, anti-aircraft artillery commanders also learned this in school. ?However, theory and operation are not the same thing after all. ?Furthermore, the position of commander of large and medium-caliber anti-aircraft artillery units is now as rare as the giant panda. ?Zhu Xuejun is among the last group to have practical experience. ?In the case where the shooting window is already very short, if the reaction is slower, there is basically no need to expect to achieve any results. So, if you really want to increase the chance of success of your plan, it is best to send Buddha to the West. That is to say, when the anti-aircraft gun faces targets at different heights and distances, the corresponding shooting parameters are directly compiled into a table and sent over. After all, the main models equipped by China, the Type 59 100mm and Type 59 57mm anti-aircraft guns, are actually the domestically produced models of the Soviet-made KS19 and S60, and they are completely consistent in core parameters. It is equivalent to making a mistake. The reason why we chose the northern plain is that the latitude here is basically the same as that of the Balkans, and the radiometric table produced has more reference value. After all, looking up a meter is much faster than calculating by hand on site. ?However, there is definitely no way to explain these backgrounds to Zhu Xuejun, an air defense brigade commander. For the time being, we can only give him a simple order. ?Of course, for him, doubts remain doubts, and orders must still be carried out. The mighty convoy soon arrived at the preset position. Zhu Xuejun put on his cotton hat and got out of the jeep. In the entire mixed air defense brigade, the total number of large and medium-caliber anti-aircraft guns that can be used immediately after being dragged out is about two and a half battalions, which is already a large number for an emergency dispatch. Chief of Staff Shu Dehan trotted over from behind and saluted him: "Comrade Brigade Commander, there are a total of 30 large and medium-caliber anti-aircraft guns, and 28 of them are currently in place. A 57-gun and a 100-gun tractor stalled on the road and are being repaired. It is estimated that they will be caught up within three to four hours. Team. Its not a big problem, I should be able to catch up. Hearing this result, Zhu Xuejun couldn''t help but show a look of pride. ? ? A sudden pull without preparation, and a long-distance run of hundreds of kilometers day and night. To be able to maintain such a complete rate is definitely a leader even in the world. After feeling slightly complacent for a while, he quickly returned to the current task: "Let each cooking team prepare to cook immediately. The weather is too cold. The comrades have been driving around in the car all day and night. They have to eat something hot to restore their strength. Before coming out, I asked them to cook all the quick-frozen dumplings I brought. It will definitely be the best tonight. No time to eat In addition, we have to ask the comrades of the engineering battalion to put down the engineering machinery and seize the time to transform the terrain and deploy their positions. Their extra meals will be put away after they return..." Each artillery battery was dispersed nearby, and attention was paid to deploying air defense camouflage nets. Although there is no air-to-ground confrontation in the notice from superiors, our front-line troops cannot take it seriously..." Instructions came out from Zhu Xuejun''s mouth in an orderly manner. The entire convoy also became active again. Large and medium-caliber anti-aircraft guns themselves are important ground air defense weapons and have very high requirements for the ground where they are deployed. Moreover, the temperature in the northern plains in mid-February was below -20C. Therefore, when the engineering battalion finally completed the construction of 30 multi-layered ring formations in accordance with the standards, the sky was completely dark. In the 1990s, night vision devices were basically a black technology that the Chinese army could not even dream of. Therefore, at night, they could only rely on anti-aircraft lights to provide illumination. Not to mention the difference in brightness, if there is an open space for confrontation, it will be easily discovered. This issue still needs to be reported to the superior... ?Zhu Xuejun, who was sitting in the command vehicle, looked at the anti-aircraft artillery position not far away from the small window, but his face was not at all relaxed. He was confident that his troops had perfected their skills. But human subjective initiative has its limits after all. If you really want to fly an anti-aircraft parachute, equipment with better performance is indispensable. You said, the aviation force has been on a roll recently. I heard that some units have changed their aircraft twice in three years. Why cant this good thing happen to our air defense force... ??Taking advantage of a short period of time at the beginning of the exercise, Zhu Xuejun said to the chief of staff not far behind him. Theres nothing we can do about it. After all, people who fly in the sky are definitely more popular than people like us who roll in the mud. The latter also sighed lightly: "Moreover, if we really want to talk about it, our surface-to-air missile force has purchased several batches of S300s over the years, more than the aviation force has purchased Su-27. The problem is still that the performance of our domestically produced aircraft is usable, but the domestically produced air defense missiles are really not good enough. Sigh...that makes sense. ?Zhu Xuejun knows that he can''t really change anything about this kind of thing. Now he just kills time by doing oral gymnastics with his old partner. At this time, Shu Dehan stood up and patted his shoulder: Okay, the training time is coming, I have to go to the other side. After saying that, he lowered his head and got out of the command vehicle In combat status, two chief officers cannot stay in the same position to avoid being overtaken by one another. ?Zhu Xuejun also picked up the microphone from in front of him: Attention all units, reload ammunition and enter the first level alert state! The originally peaceful snowfield suddenly came to life. ?The artillery squad soldiers in white camouflage uniforms began to carry the artillery shells enthusiastically and swing the gun mounts in the direction they were responsible for. Yinshan 01, this is the command center. ??The shortwave radio in the command car sounded: The target information has been captured, and you will be notified of the coordinates next, once every 30 seconds... ?Zhu Xuejun took a deep breath, picked up the slide rule and pencil in his hand, took off his watch, and placed it next to him: Yinshan 01 is ready At the same time, a low-RCS target drone modified from a cruise missile slowly flew over from an altitude of 6,000 meters. ?Zhu Xuejun in the command car quickly marked coordinate points on the map in front of him, while the staff officer next to him calculated and reported the corresponding theoretical shooting parameters. The target has ten minutes to enter the shooting area. "five minutes" "three minutes" "One minute" 30, 29, 28 Shoot! Bang-bang-bang- ?Ten minutes later, as the firing order was issued, six anti-aircraft guns in one sector opened fire at the same time, completing a 15-round burst within one minute. The flames flashing from the muzzle almost illuminated the surrounding snowfield. ? Nearly a hundred unique fireworks exploded in the night sky on New Years Eve... (End of this chapter) Chapter 670 No Chinese allowed! Chapter 670 No Chinese allowed! Under normal circumstances, after completing one round of shooting, the air defense force should immediately adjust the firing elements to prepare for the second round of shooting according to the actual situation, or quickly return to concealment. ?However, these experiences were basically passed down decades ago. ??The last time anti-aircraft artillery was used on a large scale was in the Vietnam War. The tactics used were not fundamentally different from those used in World War II. But it is already the turn of the century, and it makes sense to set up a concealment and ambush before engaging the enemy, but if you think about regaining concealment after completing a round of firing, you are completely deceiving yourself. What''s more, this is a training mission. means that the nature is closer to "war tactics verification". ??The 6th Air Defense Brigade was required to record all command parameters in detail after each round of firing. In order to compare the trajectory and hit situation detected by the radar on the other side afterwards. ?After completing the first round of shooting, Zhu Xuejun, while instructing the staff officer to record the data, leaned out and raised the telescope to try to observe his "results." ??Northern Air Defense Command Center of the Beijing Military Region. Fortunately, just when he felt a little pity, the voice of the command center came from the radio station: Yinshan 01, Yangshan Station reported that your artillery fire accurately covered the airspace around the target and the target has been shot down. However, Zhu Xuejun could only see the dark night sky like splashing ink through the telescope, and the faint smoke and dust from the shells that had just been fired could be seen vaguely. During the entire process, the other screen on the left did not display any valuable information. Attention, target 02 is preparing to take off and is expected to enter the test airspace in 15 minutes, bearing 180 After all, even anti-aircraft artillery has basically achieved radar fire control over the years, and can completely see the target on the screen. At almost the same time, about a hundred kilometers away. This means that the two pieces of debris have fallen to a height where the curvature of the earth does not allow radar to see it. On the radar map on the right, it is clearly shown that the target just now has been split into two and is falling. ?Fu Quanyou, who was sitting in the middle of the first row, turned around and said to a lieutenant general wearing an Air Force uniform next to him. It was the target drone that had just been damaged by anti-aircraft fire and eventually disintegrated and crashed. ?Only when the anti-aircraft fire exploded in a large area between 5900-6200 meters just now, a huge reflected signal was displayed on it. Unfortunately, due to the problem of information update rate, the process of artillery fire hitting the target cannot be shown. After all, the target drone is just a target the size of an anti-ship missile. It is normal to not see it at 6,000 meters high or at night... ??And when the data was refreshed again half a minute later, the screen was clean again. Yong Jin, it seems that this idea of ??using early warning radar to provide a rough direction and then using anti-aircraft artillery fire to provide rough coverage is still feasible..." A group of mid- to high-level military officers were staring closely at the radar information displayed on the two large screens in front of them. ?That is the radar echo generated by a large number of metal fragments. "Well... I have to say that from the perspective of the impact alone, it is better than what we expected before." ?Now that I have lost this intuitive method, I am still a little uncomfortable. ?Li Yongjin nodded, but still did not move his eyes away from the two screens in front of him. After a brief pause, the topic changed again: "Unfortunately, we still have no way to truly simulate the target characteristics of a stealth aircraft. Although this target drone modified with anti-ship missiles is already the smallest model of RCS, compared with the targets we are expected to face, Its still much bigger. I dont know if we can detect the target signal in advance so smoothly on a real battlefield. As the Air Force Commander of the Beijing Military Region, he actually presided over the process of transforming the ideas previously proposed by Chang Haonan into specific tactics. This naturally includes the ongoing training mission. From receiving the instructions to making the plan, the whole process took less than 100 hours. Tonight is equivalent to a big test for him. ?The two screens in front of the people correspond to two sets of radar data respectively. The one on the right is a set of long-range early warning radars that have been improved in passive mode. They were originally used by the 14th Institute for technical testing, but now they have been moved here to use their remaining heat. On the left, there is a set of common SNR-75E, which is the fire control radar of the Hongqi 2 surface-to-air missile. To avoid interference, the two were deployed in different directions, but the distance from the test airspace was still about 45 kilometers. Its a bit close to China, but just right for the Balkan environment. The test results are similar to what was previously estimated When faced with a target with a small radar reflection area, the S-band guidance radar cannot effectively see the target at all. The improved passive positioning radar can continuously and stably capture signals. This at least proves the potential of the latter in anti-stealth. You can also think on the bright side. ?Compared to Li Yongjin who was still worried despite passing the exam, Fu Quanyous mentality was much better: The passive radar we used for testing is just an improvement on the 407 radar. It is already more than 30 years old. Although the opponents we want to support are stealth aircraft with smaller radar reflection areas, they also have better equipment. The specific plan put forward by the technical staff is to improve the two Soviet-made P18 early warning radars. This is equivalent to strengthening the spear and shield. I think it is still worth fighting. ??If we say that after receiving Ding Gaoheng''s guarantee before, his mentality was still "gamble". ?After seeing the test results tonight, my mentality has basically become "stable." ?Because even if this cross-border support operation itself fails to achieve results, as long as the stealth aircraft can be "seen", it will be profitable. "makes sense." Seeing the leaders making such positive statements, Li Yongjin naturally relaxed a lot: Anyway, no matter what, this idea of ??replacing a single giant radar with multiple passive radars to conduct multi-point detection of stealth targets is definitely promising. The most troublesome aspect of the new three-on-three-defense system is finally getting a little clearer The "most troublesome thing" in his mouth naturally refers to the stealth aircraft among the new three dozen. In the past few years, although the Air Force has put forward many related ideas, in actual operation, it is often stuck in the first step, which is "realizing that there is an incoming stealth target." Now you can at least start thinking about the second step. By the way, Yongjin. After a period of silence, Fu Quanyou suddenly spoke again: Based on the current situation, do you think it is necessary to further retain a few large-caliber anti-aircraft artillery units in the air defense force for defense around key cities? Hearing this question, Li Yongjin immediately felt a little numb ??His next step is likely to be promoted to the leadership of the Air Force. If during his tenure, the air defense force''s equipment will not be modernized, but will be equipped with a bunch of old anti-aircraft guns... ?Then his name can basically be engraved on the military branch''s pillar of shame. ?Thinking of this, Li Yongjin quickly shook his head: After all, the range of the anti-aircraft artillery is still too short. It can only provide supplementary air defense after the opponent completes the attack, and its own safety cannot be guaranteed. It is basically equivalent to exchanging one position for one aircraft on the opposite side. It can be used for emergency purposes in the short term, but in the long run more advanced long-range air defense missiles are needed... Fortunately, Fu Quanyou just asked casually and had no real intention of expanding the mixed air defense brigade into an anti-aircraft artillery division, so he did not continue to struggle with this issue... While the two were chatting, the next few rounds of tests were completed one after another. Basically, as long as the target does not change too drastically in flight altitude, the accuracy of artillery fire coverage can reach more than 90%. Although two very lucky target drones passed through the test airspace without any injuries, that was because their physical size was so small that they just avoided the debris flying in the sky. A stealth aircraft, no matter how small the RCS is, is still the size of a normal aircraft. There is no reason to escape. Watching the last target on the radar screen disappear in a burst of gunfire, Fu Quanyou took a deep breath, stood up, and gave instructions in an orderly manner: Yong Jin, you send a helicopter to the position of the 6th Mixed Brigade as quickly as possible and bring back the firing command data they recorded. Also, let the comrades of Dianke Group make a copy of the radar signal data, and I will take it back with them too Organize another group of commanders and staff with experience in anti-aircraft artillery command, and compile this test data into a table "yes!" ?Li Yongjin saluted, then turned around and prepared to leave the command hall. "Wait a moment!" Fu Quanyou called him from behind again: Remember to find another group of translators to translate all the words into At this point, he hesitated a little: Lets settle on Russian and Serbo-Croatian for the time being, so that they can both understand it and have a reasonable hint of the source. In short, no matter what, Chinese characters cannot appear in these materials, and when it comes to numbers and tables, my countrys unique writing habits must not appear. ?Li Yongjin immediately understood what his superior meant and raised his hand to salute again: "yes!" (End of this chapter) Chapter 671 full-time secretary Chapter 671 Full-time Secretary ?The holidays always go by quickly. In almost a blink of an eye, the holiday is coming to an end. Chang Yuan had to take annual leave before going out a few days in advance. After the seventh day of the new year, he had to go back to work no matter what. ?Of course, in fact, given his current situation, he is no longer on the field anyway. As long as he makes a report, his superiors will definitely approve a long leave without saying anything. It''s just that Lao Chang couldn''t get over that hurdle in his heart. ??Having worked diligently in his police job for more than 20 years, and now he is about to retire, he doesn''t want his colleagues to stab him in the back because of such a petty matter. ?Zhou Li is leading another graduating class this year. Its the third year of high school. Its normal for school to start in the eighth grade. Chang Jiayao will not start school until the fifteenth day of the first lunar month. ??Although she really wanted to stay in the capital and follow her brother, considering that Chang Haonan was busy and didn''t spend much time at home, she probably would have to go hungry for nine meals in three days. ??Moreover, I am not familiar with the place where I live, and there is no public transportation or taxis in the location where I live. Even if I stay, I can only stay at home. So Project 10 is still using three prototypes No. 01, 03 and 04 for test flights. If nothing else happens, the high probability of being on the military parade will be the latter two which are in more complete technical condition. In addition, the prototypes No. 03 and 04 were transformed from Xiaotiantian to Mrs. Niu before they could enter service, and their positioning has also changed from "the main force of the future air force" to "preparing for export after slight modifications." Naturally, It doesn''t matter if you show up in advance. In the end, I followed my parents back to Liucheng with some reluctance. Naturally, it cannot catch up with the National Day military parade in 1999. "go to company." After getting his family back on the plane, Chang Haonan himself has to start busy again. ?Chang Haonan finally sat back in the relatively spacious right rear seat: On the Shengjing side, the J-11WS has not completed the replacement of the turbofan 10 on the dual-engine. Even if it is completed, the single-engine test has passed almost 100% smoothly and no problems have been found. The subsequent dual-engine test will not be completed. There is no need for Chang Haonan to watch from the side. Just go through it before and after some extreme performance subjects. Rather, it might be possible to confuse foreigners The progress in Chengdu is similar. The first prototype of the improved J-10 is still some time away from completion. But now, many technologies have been verified in advance in several projects such as the August 3rd Project, JH-7A and JJ-9, which is equivalent to straightening out the technology tree, which is the idea of ????"running fast in small steps". ?As a fatter single-engine aircraft, it needs to wait until the design of the Turbofan 10 is at least finalized before it can officially roll off the production line. I wont go on business for the time being, I will stay in the capital to do some things. After getting back into the car, Zhu Yadan asked while lighting the ignition: "If I have to go on a business trip, I have to arrange my schedule one day in advance and report the security plan to my superiors..." ??As Chang Haonan''s business trips are getting longer and longer, and the security level is getting higher and higher, even if he already has a special plane, it is difficult to say that he can leave immediately like in the past. ? Among them, No. 01 is not a full-state machine, and it has already completed the factory project and transferred to Yan Liang to start preliminary identification and test flights. Chief, where are you going next? Hence, when used on the J-10, it already felt quite comfortable. In the original timeline, because the J-10 used too many new technologies at the same time, many minor problems were discovered during the initial flight test and trial production process. In addition, it was a highly sensitive project, so it was not until the 00th batch was put into service. It was only officially made public at the end of 2006. After watching the military parade, I feel that Chinas J-10 is similar to everyones previous speculation. As a result, a year or two later, I suddenly found that the J-10 had changed into something else... Give them a surprise. In short, he happened to be in no hurry for several things outside the capital. Hearing that Chang Haonan said that he would not be traveling for the time being, Zhu Yadan was secretly relieved. ??As the former''s security level increased, she was also promoted to one level during the Chinese New Year. She is now responsible for various written work such as writing security plans, travel summaries, and situation reports. When she went to the military school, she originally liked training classes but disliked cultural classes. After graduation, I have been just an ordinary guard, let alone practicing these things by myself. The result is that I have forgotten most of the things I learned back then, and almost have to pick them up from scratch. I have learned a lot these days. It can be said that I have a profound understanding of what it means to be miserable if you are young and do not work hard. Because he hasnt been back for so long, the two piles of documents on Chang Haonans desk were covered with a thin layer of dust. Fortunately, there was no pile of letters and documents that he was worried about. Song Jingming followed Chang Haonan and watched his boss touch the surface of a certain portfolio, and then a streak of gray appeared on his hand. He was sweating all over, and he quickly explained: Your office is still cleaned every day, but we really dont dare to touch these files, so Chang Haonan laughed: Its okay, I can see that, and thats good. After all, except for the surface of the document, other places are fairly clear and clean. ?Although in reality, he would not just leave confidential documents that have nothing to do with the Torch Group in the office, it is always good to have this awareness. ?Seeing that Chang Haonan was not dissatisfied with this, Song Jingming''s expression became much more relaxed. He immediately placed a document under his arm in front of Chang Haonan and continued: According to your previous instructions, our office is responsible for handling daily non-substantive matters during this period. This is a summary table for you to take a look at. Hearing this, Chang Haonan''s eyes showed a little surprise, and then he opened the folder. Non-substantive matters are matters that have nothing to do with finance or human affairs. It may not all be red tape, but its basically not important. Even so, Song Jingming still wrote down all this, which shows that the office director really thought well. ?Furthermore, although there are many items in the content, each item is outlined and concise. It is obviously not the kind of word game that deliberately reports everything in detail in order to hide important matters. Most of them are official letters issued by other companies during the New Year and holidays, as well as applications to visit our company for study. As long as the time span is not too large, I basically merge them together. Song Jingming explained from the side: As for matters related to the business, they are basically handled by Manager Yang. I have just contacted her and she should be heading here now ?? Before he could finish his words, there was a distinctive rhythmic knock on the door outside the office. Chang Haonan didnt even need to raise his head to know that it was Yang Huimei whom he had just talked about. Mr. Yang, please come in. After about two or three seconds, Yang Huimei''s figure appeared at the door. ?Hold a thick stack of documents in both hands, and a bag hangs on one arm. Seeing this, Song Jingming quickly moved the things in the other person''s hands and put them on the desk. "Mr. Chang, I told you before that you need to hire a secretary..." ?Yang Huimei was panting and sat on a chair opposite Chang Haonan, holding her waist with one hand and said. ? In the past few months, Torch Group has basically been in a "manager offline system" state, and daily affairs have been basically handed over to Yang Huimei and Song Jingming. Only when decisions need to be made, Chang Haonan will hold a conference call. In fact, Yang Huimei once urged Chang Haonan to hire a full-time secretary, but the matter has been put off ever since. As a result, the former is almost brought into this position himself. "Don''t worry, when the salary is raised at the end of this year, I will definitely give you another salary increase..." Its not that Chang Haonan doesnt want to find someone, its because Yang Huimei is a university professor with rich theoretical and practical experience, so its difficult to find someone who can replace her in terms of work ability. And I know the basics. I have participated in foreign negotiations with the aviation industry in the past, so I dont have to worry about problems. ?Even if you spend a little more salary for this, it is worth it. Its not about the money. ?Yang Huimei waved her hand: Im getting older, and the groups business is getting more and more, and sometimes I really cant keep up with my energy. If you really dont want to worry about outsiders, you can choose from the students who have graduated from my research group in the past two years. This way, with me as your mentor, there wont be any big trouble..." Of course Chang Haonan knew that the other party was trying to kill two birds with one stone. The popularity of business professors mainly depends on what kind of jobs they can help graduates of their research groups find. Especially now that graduation basically does not include distribution. As a currently flourishing enterprise, Torch Group is definitely a very good place to go. At the same time, it can also share Yang Huimeis own work pressure. ?Of course, as long as the ability and character of the people recruited are good, there will be no loss to Chang Haonan. So he was happy to give this favor. ?However, we still need to make it clear: Thats fine, the fertilizer will not flow to outsiders fields. ?Chang Haonan deliberately hesitated for a moment, and then nodded: The students in Manager Yangs research group are definitely worth giving a chance (End of this chapter) Chapter 672 Supercomputing export, I’ll be in charge Chapter 672 Supercomputing export, I make the decision ??Yang Huimei came here this time, naturally, it was not possible just to talk about asking Chang Haonan to find a full-time secretary. So, after some brief greetings, she quickly got to the point. "Mr. Chang, I have reported earlier matters to you before. The relevant records are in these files. They are organized according to the type of transaction and date. You can take a closer look later." ??Yang Huimei said, picking up the top one from the pile of documents that had just been placed on the table and handing it to Chang Haonan: But I just received this this morning. Before I could contact you, I received a call from Director Song, saying that you would come to the company today, so I brought it over directly. The latter opened it and found that inside was a letter of explanation from Shuguang Group. The content is not long. The general idea is that after our own testing (and of course users such as 112 Factory who pre-ordered the early trial version), we believe that the Sugon 2000T adapted to TORC Multiphysics has basically mature technology and can be officially released at any time. As mentioned before, TORCMultiphysics has actually collected enough user feedback and data. The official version of the software has even been packaged. The delay in releasing it is largely due to waiting for Sugon 2000T to complete the stability test. Now, it is clear that the time has come. Is there a need for a special press conference? "Um" Judging from the number of customers who have consulted with us, I think there is a lot of attention. If we can take advantage of this opportunity to promote it, the effect should be good. What really brings attraction is that it can open up more core functions of TORCHMultiphysics. The number of users who have actually experienced the trial version is still relatively small. In addition, even in Europe and the United States, the Internet is far less developed than it was more than 20 years ago. Therefore, most interested potential customers are still in the "Have they heard of such a thing?" I know something, it seems to be quite powerful, but I dont have a concrete concept stage. ?Chang Haonan leaned back in his chair and did not answer immediately. Compared to just finding a supercomputer of the same level, the efficiency of running TORCH Multiphysics may be only about 10%-15% higher. Considering that its own performance is only around the level of 1996, even if calculated at 15%, it is still a huge disadvantage compared to the most advanced models in the world. ?Although TORCHMultiphysics has already gained a lot of popularity, there is no end to publicity. ?At this juncture, the cost-efficiency ratio of publicity investment must be the best. In fact, although it is a customized version that has been specially adapted, the degree of localization of core components is not high, especially when high-performance chips still need to rely on imports, the optimization space for this "customization" is actually very limited. In addition, the groups current cash flow is a little tight. Although we can currently obtain loans directly from banks, it should be safer to control some risks. Seeing Chang Haonan''s eyes leave the page, Yang Huimei asked again: "Since the end of last year, we have received many letters or phone calls from users asking us about the expected release date, licensing method and pricing of the official version of the software. At that time, we basically responded according to the same template, but in the end we also left Let them wait a moment." That is Dawn 2000T, and what Ding Gaoheng mentioned to him before, China is likely to join the WTO soon. So, according to the previous cooperation agreement between the two parties, a share of the profits from each Sugon 2000T will be given to Torch Group. But Chang Haonan is not just the general manager of Torch Group after all. This is especially true for users in developed countries in Europe and the United States. He also needs to consider the problem from a larger perspective. ??If calculated from a business perspective alone, then Yang Huimeis idea is definitely no problem. But this also means that TORCMultiphysics and Dawn 2000T must be highly bound. The former is okay. At the turn of the century, because the Internet bubble was still at its highest point, the world generally regarded computer software as a relatively open industry. But the computer hardware, and the high-performance computers themselves, are different. China has done little in this regard in the past, so it did not involve much content in the information industry during its WTO accession negotiations. ??It is still necessary to keep silent about making a fortune, so as not to cause unnecessary problems at the last moment. ?Although it is a publicly released commercial product, no matter whether Chang Haonan holds a press conference with great fanfare or not, the real core industry insiders will know the relevant situation. But the person responsible for negotiating with China is not an expert. As long as they dont know. ?Thinking of this, Chang Haonan sat up straight again and said to Song Jingming, who had been silent just now: Ask Academician Li Jie from the Institute of Computing Technology if he is in the capital. If he is, please help me make an appointment with him. "no problem." The two of them met at the Institute of Computing Technology of the Academy of Sciences. Although at the corporate level, Torch Group and Shuguang Group are at the same level. ?But after all, Li Jie is an academician, so he still needs to be respected in this regard. Comrade Haonan, long time no see. Academician Li. ?Chang Haonan stepped forward and shook hands with the other party. The last time the two met was when they received the award together at the General Assembly Hall last year. ?Now, after nearly a year, Chang Haonan has not changed much except that his temperament is more mature, but Li Jie can actually tell that he is much older. I must have been under a lot of pressure recently. Comrade Haonan, you must have read the letter I sent in the name of Shuguang Company a few days ago, right? ?? Li Jie placed two cups of tea in front of Chang Haonan and himself, and then sat on another sofa adjacent to Chang Haonan: Ive heard before that in terms of software, the official version has been prepared for a long time. Im really sorry, Sugon 2000T encountered some compatibility issues during the development process, which delayed it for several weeks. The latter picked up the cup and took a sip of tea, while waving his hands: It doesnt matter. TORCH Multiphysics has no direct competitors around the world. If it is released earlier or a few weeks later, it will not have much impact. ??This answer can be called domineering and sideways, and it directly stopped Li Jie next to him for a moment. After all, it is basically the only Chinese enterprise in this era that can be so confident. Chang Haonan then continued: However, the reason why I came here this time is indeed about Dawn 2000T. "You say." ?? Li Jie is actually of the same generation as Du Yishan and Ding Gaoheng, but they were elected academicians relatively late. In addition, when they met Chang Haonan, they already had a cooperative relationship of equals, so their attitude was much more polite. I hope that the sales strategy of Sugon 2000T, at least for foreign users, can be determined by our Torch Group. (End of this chapter) Chapter 673 There is a saying that makes a fortune with silence Chapter 673 There is a saying called "Making a fortune in silence" "ah?" Hearing Chang Haonan''s request, Li Jie''s first reaction was not to agree or reject. But at a loss. He was originally picking up the tea cup and preparing to drink it all, but he stopped midway: "wait" After a few seconds, he put the cup back on the coffee table: What we said when we had dinner in the Great Hall was that this machine is going to be used in very large projects like the Qinghai-Tibet Railway? Why are there suddenly claims from foreign users? Its not that Li Jie is unwilling to do foreign business. Mainly I have never thought about it in this direction in the past. ?Chang Haonan also felt a little embarrassed. ?Chang Haonan also put down the teacup in his hand. ?Originally, he thought he would have plenty of time later, but it turned out that he had been traveling around on business since that time and had hardly been back to the capital. ?Chang Haonan thought at that time. The two parties sign a formal cooperation agreement, and subsequent collaborative development is completely delegated to others. ??And this kind of semi-infinite open domain problem just needs some new and targeted algorithms. ?Looking at it this way, Li Jie must have heard about this for the first time today... Fortunately, its not a fatal deviation, so its not a big problem. As for exporting So, I only talked to Li Jie about the new model of supercomputer when I was having dinner later. "Well" ??It is naturally impossible for the people below to add content privately that their boss has not said. Well...then we said that this supercomputing machine was only for special use and didnt care about compatibility. Ahem But he was interrupted by the ritual process and had no time to speak out. ? There were two main points emphasized at that time. One was to optimize computer hardware based on the TORCH Multiphysics algorithm, and the other was to increase the localization rate as much as possible while achieving basic functions to support the domestic semiconductor industry, which was almost dying. How many dishes are there? Is it too expensive to export? In the past, there was no way to buy one... ?Chang Haonan pretended to be straightforward: ?He briefly thought about it and found that this seemed to be the case. But didnt you spend a lot of effort to solve the compatibility problem in the end..." Zhu Lan, who also came to receive the award at that time, happened to ask how to simulate the vibration of heavy-duty trains during driving and the land base settlement after long-term loading if a railway is to be built in a plateau frozen soil environment. ?In the initial planning, the Dawn 2000T was just a modified version of the Dawn 2000-1 that was weaker in other aspects and specialized in running TORCH Multiphysics. But the final product was a fully enhanced Dawn 2000B. Hearing Chang Haonan say this, Li Jie couldn''t help but show a proud look: Hey, plans cant keep up with changes... "When we first talked about Sugon 2000, our technology and funds were not enough. The best Sugon 2000-1 at that time was about the level of others in 1994. It might be a little worse, and the components were basic. They are all imported. If you want to make targeted optimization, you must sacrifice versatility. "However, in the past two years, we have made several large domestic orders, withdrawn a lot of funds, and invested more in the research and development budget. Moreover, those low-end server product lines have really produced several high-end products. In the past, domestic component suppliers took a gamble, and finally invested more than 30 million yuan, which finally took away the compatibility issue..." Furthermore, the performance of Sugon 2000B, which was released together with Sugon 2000T this time, has probably reached the level of others around 1996... Of course, these should have been mentioned in the letter I sent you..." ?Unknowingly, Torch Group and Sugon Group have actually begun to drive the development of the domestic semiconductor industry... Of course, Li Jie said this easily and freely, but looking at his sideburns that are obviously much grayer than a year ago, he has obviously experienced a lot of hardships that are difficult to explain to outsiders. "Then...my plan can''t keep up with the changes." ?Chang Haonan is going to make up for himself a little: "At this time last year, the TORC Multiphysics software, including the entire Torch Group, was not very famous. I just thought about the export. I definitely can''t talk to you about things I''m not sure about." But now, we have reached cooperation with several large European companies, and our reputation is basically established. Ive heard of this. Li Jie picked up the tea cup again: "Although I am not engaged in machinery manufacturing, last year many people who came to do calculations with us, or bought servers and supercomputers from our group, mentioned that you had established a global company with an... uh... Italian machine tool company. A joint venture within the scope of the company has brought high-end machine tool production lines to China for the first time. "It is indeed a huge leap for our country." Excluding special cases like Chang Haonan, it is basically correct to say that every other line is like a mountain. ?An academician in the field of computing science, although he cooperates with Torch Group, basically only hears about things that have nothing to do with him. ?However, what Chang Haonan originally wanted to show off was not this: Machine tools... it is indeed the case, but this field is too segmented and belongs to a niche industry. Only those in the circle know that it is powerful, but outside the circle it does not have much influence. ?At this moment, Li Jie didnt drink the water he just put to his mouth: This is not influential yet? He put the cup back on the coffee table for the second time: In October last year, Academician Wang Zhongqi came to me on a business trip and told me that you would push our countrys CNC machine tool industry forward by at least 20 years! Two different things. Chang Haonan waved his hand: "This is indeed the case in China, but to be honest, for most Europeans, even those in European academic circles, they don''t pay much attention to what development China has achieved. If we want them to open their eyes , then there must be something iconic. Thats true ?Li Jie tried to drink water again: Although it is said that Europe is in decline, as far as the foreigners I have come into contact with, these old Europeans are generally more arrogant than Americans. Chang Haonan immediately took over the conversation: So, last year we directly cooperated with Airbus to help them build helicopters. We also cooperated with Ferrari, which makes sports cars, and helped them win a world championship..." ?This is not just a boast. In fact, since the two belong to the same group, many people directly refer to Eurocopter as Airbus Helicopters, and later the official name was changed to the latter. As for Ferraris world championship ?What, is the team championship not considered the championship? Ahem ??Although Li Jie finally managed to get some water this time, he almost choked on Chang Haonan''s words as soon as he drank a little bit - ??Although the C.B. Ferrari Group, which cooperates with Torch, has top-notch product quality, its popularity in China is still not as good as that of its counterparts in Germany, Switzerland or Japan. But when it comes to Airbus and Ferrari cars, basically everyone knows about them. Furthermore, compared with the cooperation between these two, the influence of the former one is indeed not great... So, do you think that the performance of our Dawn 2000 itself is not that bad, and coupled with your customized version of the software with additional functions as a lure... as a bargaining chip, it should be possible for foreign customers to pay? Li Jie, who failed to drink water three times, simply gave up and leaned back on the back of the sofa. HmmI think its more than possible. ?After a little thought, Chang Haonan gave a more positive response: "There are too many to mention. Based on the news last year, I estimate that at least two or three units can still be sold..." Two or three units are fine too! Li Jie seemed to be confident when he heard what he meant, and he immediately became nervous: Dont say two or three, just one if you can sell it! Isnt it the sales strategy of Sugon 2000T? You have the final say! If you can sell more than ten or twenty units every year, you can turn our Shuguang Group into a wholly-owned subsidiary of Torch Group! ?Of course, he only thought about this last sentence in his heart, but in the end he still didn''t feel embarrassed to say it out. They are all decent people and want to have face. After calming down a little, Li Jie immediately asked about the specific operation matters: Then...do we need our company to cooperate in publicity? No, no, no. ?The reason why Chang Haonan wanted to grasp the sales strategy was because of this, and he quickly waved his hand: "This matter involves a lot, especially now that our country is negotiating its accession to the WTO, and computer hardware trade is a sector that Americans value more, so... at least in the short term, my plan is to find familiar customers for targeted sales." "We have an old saying in China, which is called "Making a fortune in silence". It''s best not to say anything now. Otherwise, if there is any deviation in the propaganda, you and I will have to bear historical responsibility..." ?Li Jie thought about it again and felt that it made sense. After all, when doing business, all you need to do is look at channels. ?Now that Torch Group has exclusive external channels, it doesnt matter if it doesnt engage in high-profile publicity. Then as you said, well keep a low profile for now. After two days, we will sign a contract and let your company serve as the exclusive distributor of Sugon 2000T model. This will also clarify the relationship between rights and responsibilities and facilitate the centralized export of complete computers for the first time! After finishing speaking this time, he did not wait for Chang Haonan to respond. Instead, he picked up the tea cup as quickly as possible, raised his head and drank it in one gulp. (End of this chapter) Chapter 674 Dream Group, something is not right Chapter 674 Dream Group, something is not right ?Li Jie, who finally finished his tactical drink of water, refilled a glass for himself and Chang Haonan respectively, and then hesitated for a moment, looking like he was hesitant to speak. Mr. Chang, there is one more thing ?Looking at this meaning, it is likely to be followed by a question such as "I don''t know whether to speak or not." ?However, considering that both of them have technical backgrounds, this whole thing was a bit redundant, so he finally said directly: I would like to ask, is there any business relationship between your company and Dream Group? ??There seemed to be no connection between this question and the topic just now, which made Chang Haonan stunned for a moment: During the centralized procurement, did I buy their computer host...does it count? Needless to say, in this era, 100% of the accessories in the PC market are basically imported. Compared with other brands that have to import their entire machines from abroad, Dream Group can at least keep the assembly process in China, so in Public budget procurement eats up most of the market. Therefore, although Chang Haonan didn''t want to see the other party in his heart, he had no choice. Furthermore, from this perspective, Dream Group made some contribution to Chinas electronic information industry in the early days. ?However, Chang Haonan didn''t take it seriously. ??If it''s two private companies, then it''s no problem for the bosses to sit together and chat about everything. If it''s not convenient to answer, just go around in circles. ?Li Jie waved his hand and couldn''t help laughing: Although in most cases the cooperation between enterprises will be made public, the details of the ups and downs are also considered commercial secrets. Furthermore, the situation where the originally smooth foreign trade business of Chinese enterprises was disrupted by insiders introducing external forces has happened countless times in the previous life. ??However, Torch Group and Shuguang Group are both second-level state-owned enterprises under the Academy of Sciences system, and they have a completely parallel relationship with each other. Even in terms of business, the former has a closer relationship with the Science and Technology Commission. ??Isn''t this a subtle hint that Dream Group does not have the ability in this area... Such in-depth cooperation naturally does not exist. Its a pity that it ends here. Strictly speaking, it was a bit over the line for him to ask this question. So he immediately shook his head: As a reborn person, he naturally knows that the Dream Group is unreliable. Those who have dealings with Torch Group are institutions or companies with R&D capabilities. Hearing this, Li Jie finally relaxed. This can only be regarded as a normal purchase and sale transaction, I mean, cooperation like this with our Dawn Group. After all, he had been planning to target Dream Group two years ago, but he had never mentioned it to anyone else. As you know, Torch Group is not large in scale, and its main business is to provide targeted and exclusive technical solutions. Therefore, those who have business dealings with us are basically institutions or companies with R&D capabilities..." After giving the answer, Chang Haonan also asked with doubts: Why did Academician Li suddenly ask about this? ?Immediately realized that there was something wrong with Chang Haonan''s words, and couldn''t help but chuckled Of course this doesnt count ?That''s why Li Jie was a little hesitant just now. So Chang Haonan still has this vigilance. But it seems that Li Jie shouldn''t be so sensitive. After all, according to the timeline, the Dream Group at this time should not have become the conscience of American imperialism. This is a long story Li Jies expression, which had been smiling just now, suddenly turned serious: "You should know that in the past two years, the superiors were planning to merge the entire computing institute into the Dream Group, so at that time I was always the deputy director in charge of the work, and the director was always named by the CEO of the Dream Group ?Chang Haonan nodded, but did not answer the conversation. He just motioned for the other party to continue. "Later, their ambitions expanded and they wanted to take over our Shuguang Group as well. At the highest point, they had obtained 20 million of our shares. However, in the end, because our group''s revenue suddenly improved in 1997, it was Didnt let the Dream Group succeed. Speaking of this, Li Jie also raised his head and glanced at Chang Haonan. After all, the somewhat sudden wave of supercomputing craze is still influenced by the latter. Although after calming down, everyone gradually discovered that without a person as incredible as Chang Haonan to take charge of the work, just having a supercomputer would have limited effect, but in any case, Sugon Group made a lot of money that time, directly Reversing the loss trend of previous years. More importantly, it injected a wave of confidence into the superiors who were already a bit wavering about this bottomless pit of funds. Chang Haonan finally understood: So, you, or we, have ruined Dream Groups good deeds, so Academician Li is worried that they will use some off-board tricks to sabotage it? Not just worried. Li Jie looked solemn and said: Actually, when doing business, they want to acquire us, but we dont want to be acquired. It is normal for the two parties to have conflicts or commercial struggles. But since last year, we have obviously encountered some obstacles when importing computer components, some of which are related to production capacity, some to customs clearance documents, and some to review. "Although there have been no real problems so far, if Mr. Chang wants to keep a low profile in the electronics industry, he should not only consider foreign countries, but also pay more attention when doing things domestically, or rather , but we should pay more attention to it at home... ? ? ? Although he and Chang Haonan have business contacts, they have not had much private communication in the past. He only knows that the latter has extraordinary ability in research, and he does not know that Chang Haonan has a series of experiences in the past. role in the incident. Thats why I have such a reminder. Dont worry, Ill be careful. Chang Haonan naturally knew that the other party meant well, and nodded to express his understanding: Besides, I have experience in dealing with this kind of thing. Obviously, in the current timeline, due to his series of twists and turns, Dream Group encountered development obstacles in the country early. Conflicts will occur sooner or later. ?Before China truly became the worlds factory, the functions played by companies like Dream Group were generally positive. After all, even if it is an assembly factory, assembling electronic products belongs to the high-tech field and is definitely a valuable industry for China at this stage. However, when China is no longer satisfied with being the world''s factory, these companies that have been used to making money as factories have turned into a dragging role. This is a structural contradiction. ?The more things he does and the greater the role he plays, the sooner China will develop upstream in the international industrial division of labor. It will be contrary to the interests of the comprador group. ?This is actually the same as when he wanted to develop independent aviation industry standards a few years ago, but was blocked by a group of people. Taking away someones job is like killing ones parents. It''s just that at that time, Chang Haonan was just a little Kalami with little energy. Even using the influence of the Science and Technology Commission has to be done through Du Yishan. There is not much that can be done. So most of the pressure, as well as the specific countermeasures he came up with, were all done by Ding Gaoheng. But now, times are different. ??In the Boeing merger and acquisition, as well as the upcoming Allied Forces Operation, even Americans dare to have a hand in it, let alone a dream group that has not even fully committed to the United States... Academician Li. Chang Haonans character is of the type that he cant fight for short-term gains and losses, but must decide the long-term outcome. At that moment, he already had the idea of ????sitting down the drain on the Dream Group: I wonder if your company is interested in developing into areas other than commercial servers and supercomputing? ??Li Jie looked at Chang Haonan with a slightly curious look, but still nodded honestly: "Of course there is. After the previous popularity of supercomputing and servers, the market is a bit oversaturated. It would be good if the number of new orders can be maintained without falling. If you want to further improve it, you can either do it like you just said. Either way, we can open up overseas markets or expand other businesses horizontally. "However, in areas other than commercial machines, we really don''t have the resources... Take the PC market, which has the largest profit margin now, as an example. The entry point has already been laid out. If we go out, firstly, the superiors may not approve this move. This is a repetitive construction, and secondly, you can only pick up some scraps that other manufacturers dont want in the market..." Objectively speaking, Dream Group does have a good momentum at present. It is very difficult to make a comeback in the opponent''s advantageous game. ?The opportunity is that in a few years, Chinas government and enterprise procurement will try to introduce localization indicators for the first time, especially the localization of operating systems. In the original timeline, this first attempt was ultimately unsuccessful. But there are still opportunities now. ?Hence, what Chang Haonan wanted to do was originally a roundabout strategy: In the PC area, it is really unrealistic to compete head-on with those companies right away. However, as you mentioned before, we have established a joint venture with an Italian machine tool company, and we are responsible for the industrial control part. Its just that the software is indeed written by ourselves, but the hardware still has to be purchased from imported models Having said this, Li Jie still cant understand: You mean to start with industrial control equipment, microcontrollers, etc But the level of domestic hardware... Of course Chang Haonan had already prepared the draft: High-end products are definitely not available now, but we can start from the low-end. No matter the level, we still have to build up the domestic industry ecosystem first. We cannot support an entire semiconductor industry chain by selling supercomputers and servers alone Do you still have a product line of low-end models? Li Jies focus is a bit different: I heard someone say before that the first product you launched was something that had never been produced in China before. Chang Haonan waved his hand: We definitely dont have a joint venture with Italy. We need to rely on that to gain brand influence, so the three-axis CNC machining center we first released is the lowest-end model. But in the future, an industrial control division may be established to provide other machine tool companies, especially domestic machine tool companies, with solutions for converting ordinary machine tools into CNC machine tools. This segment will definitely focus on low-end business. Although our countrys machine tool strength is not strong, the output is actually not low. If we seize this business, although the profit margin is relatively miserable, it will not be a problem to support a set of upstream and downstream industries. When the talent level improves, and then return to the PC market with a high localization rate as a selling point, although it should not be attractive to personal business, it will be enough even if it only eats the cake purchased by sensitive units... (End of this chapter) Chapter 675 Air Police 200, and Ring Engineering Chapter 675 Air Police 200, and the Ring Project ?Just when Chang Haonan was thinking about how to drain the firepower and gradually eat away at the fundamentals of the Dream Group. Chin Province, Nanzheng. ?As the huge door of the assembly shop slowly rose, a huge four-engine propeller aircraft slowly drove out of the factory, pulled by a Jiefang truck. The front half of the aircraft is not much different from a normal Y-8F transport aircraft, except that the original glass navigator cabin at the nose has been sealed by an opaque skin, and there is an extra "little white hat" at the front. There are more than a dozen densely packed spike-like radomes below. But on the rear half of the fuselage starting from the wing section, there stands a T-shaped formation that is almost one-third of the fuselage long. Further back, the entire tail of the aircraft has been heightened, and two inverted V-shaped tail fins have been added below the tail. ??Although the body itself still has the rounded appearance of the past, with the addition of an antenna on the back, the entire aircraft actually has a bit of a murderous air. Needless to say, this is naturally the first Air Police 200 early warning aircraft to be completed and rolled off the assembly line. In fact, the basic design of the Air Police 200, especially the coupling design between the T-shaped antenna and the vertical tail, was completed by Chang Haonan about a year and a half ago. Like the long-range rocket launcher designed by Jinling University of Science and Technology and the JJ-9 designed by Guihang Industry, it was part of the internal testing of TORCH Multiphysics. However, the technical foundation of Nanzheng 182 Factory is indeed limited. Their design department was just an on-site design office a few years ago and has only recently been expanded. ? Including Liang Shaoxiu, one of the dual chief engineers of the Air Police 200 project, although he has also completed the improvement of the Yun-8 new platform with Chang Haonan and others, he basically only has such a complete project experience. In addition, this project has existed as a backup for a long time, and neither funds nor other resources are sufficient. So it was delayed until the end of February 1999 before it was officially shipped from the factory. Actually, it is not entirely accurate to say that it was "dragged" until it leaves the factory now. After all, it took almost 4 years to change the J-7II to the J-7M, which almost did not involve the aerodynamic part. The transformation of the second transport aircraft into an early warning aircraft is, after all, a huge visible and tangible improvement, and there will be huge changes in aerodynamics, structure, power supply and other aspects. Even if the most critical antenna tail coupling problem is a ready-made solution, it will take less than two years to complete the other parts and build the aircraft, and the efficiency is pretty good. Its just that in recent years, the aviation industrys understanding of efficiency has been distorted under the leadership of a certain person... So, including Factory 182 itself, everyone feels that this efficiency is a bit unsatisfactory. Fortunately, starting from the beginning of this year, the allocation for Air Police 200 suddenly increased a lot, and superiors began to ask more and more about the status of this project. ? And today is actually not the day that the completion ceremony was originally scheduled to be held. So, when the plane was towed out, there was no red carpet, flower stand and other equipment prepared at the door of the factory. Even the traditional Chinese big red flower was temporarily obtained from nowhere. Because it was too small, it could not be tied to the entire nose section of the aircraft as usual, so I had to adjust the rope and hang it on the white radar on the nose of the aircraft. Under the hood. In short, everyone seems to be in a hurry and obey authority. However, the atmosphere inside Factory 182 was not at all cold due to the simplicity of the ceremony A big leader is coming. Even the two chief engineers, Liang Shaoxiu and Wang Xiaomo, only found out about this matter the day before. Thats why there was no time to arrange the ceremony. ?Even the former flew over from Jinling temporarily. Fortunately, the notice from superiors was also very clear. The chief was only here to personally inspect the research and development of the domestic early warning aircraft. The whole process was to be quick and simple, so as not to affect the normal work arrangements of the project team. The two men followed the tractor and came out of the workshop together with the early warning aircraft. At this time, a group of people were already waiting outside. ??The person in the middle is wearing an unranked green military coat and a pair of black-rimmed glasses. Following him were Ding Gaoheng, who was wearing complete winter clothes, and the leader of an aviation industry group. ?After seeing the plane stop, a group of people walked forward slowly. ?With this posture, not to mention Liang Shaoxiu, even the well-informed Wang Xiaomo felt a little numb. ?Of course, it cannot be ruled out that I was not wearing a hat and was freezing in this cold February weather. The two of them took a deep breath almost at the same time and came to the front of a group of big guys. ?Liang Shaoxiu didn''t even notice that he was a little obedient. Report to the chief! The first technical verification aircraft of Air Police 200 has been completed and shipped from the factory, please give instructions! China has never seriously produced an early warning aircraft in the past, so unlike Project 10 or Project 11, it can start directly from a prototype. We must first build a technology verification aircraft. It proves that this radar + aircraft combination can fly and can detect targets normally after flying. The Air Police No. 1 back then was stuck at this step. ?Although it can fly, it is almost invisible to radar after flying. ?Of course, each of these large aircraft is extremely valuable. ??If the technical verification process goes smoothly, it is possible to convert it to a prototype on-site, or even finally change it to mass production status for service. The leader in front of them stretched out his hand and pressed down, indicating that they could not be so nervous and be more natural. ??He did not start asking questions immediately, but led a group of people, including Wang Xiaomo and Liang Shaoxiu, around the plane for most of the circle. I walked until I was directly under the huge T-shaped antenna and stopped, looking up for a while. Comrade Xiaomo, is this radar antenna completely produced by our country? The T-shaped antenna early warning aircraft is the first of its kind in the world, but the commander did not ask about the shape of the antenna. Obviously, the other party came here not just to watch the fun, but came prepared. You must have done some homework in advance. After all, he is a person who almost became a professor, and he has no background in science and engineering. Yes, we produce it entirely ourselves. ?Wang Xiaomo nodded: However, our current technology for processing high-silicon aluminum alloys using machines is not sufficient, so we use manual finishing methods, and the production efficiency is relatively low. ?The big leader will naturally not express his position casually. After hearing this answer, he just said yes, and it was not clear whether he was satisfied or not. After a slight pause, the other party spoke again: I heard that this phased array radar relies on semiconductor radiation units to control phase and amplitude changes. Do we need to import such components? ?Wang Xiaomo was a little surprised that the other party would ask such a detailed question, but he still quickly answered truthfully: On this aircraft, we use T/R components made of bipolar silicon material, which can be completely produced in China. Although the production capacity is relatively low, compared with the production speed of the array, it is not a problem. However, if you want to further improve radar performance, you need to use gallium arsenide components. At present, we can only rely on imports of this material, and the use and quality of imports are still limited. What about the ring project? The chief turned his head and asked almost immediately: What kind of technology is used for the Davidian radar on the Ring Project? ?As soon as this question came out, both Wang Xiaomo and Liang Shaoxiu, who had not had a turn to speak, immediately understood. As Chang Haonan speculated many years ago, there should be some problems with the ring project. Now, superiors are considering the survival of that project. According to the information provided by David, the earliest Falcon system also used bipolar silicon, but in the ring project, they upgraded it to a hybrid component of bipolar silicon and gallium arsenide. "About this, the chief minister does not need to worry too much. The antenna of the active phased array radar is a relatively independent part. Although it is currently using bipolar silicon, in the future, domestic production of gallium arsenide will be achieved, or stable import channels will be found. , we have also reserved sufficient cooling power to upgrade some components to gallium arsenide. Furthermore, because the area of ??this T-shaped array is larger, within the commonly used range of 120 to the left and right, the performance will not lag too far behind, but the detection capability of 60 in the front and rear is relatively weak. Wang Xiaomo could not conceal the actual situation of the project, but he could eliminate the concerns of the chief in a targeted manner. ?Sure enough, the other party turned his back and fell silent while looking at the antenna in front of him. After a while, he started walking again: Lets go and take a look inside the plane first. (End of this chapter) Chapter 676 Early warning aircraft can also be matched with high and low levels Chapter 676 Early warning aircraft can also be matched with high and low levels The early warning aircraft does not need to load large cargo at all. The original tail hatch is naturally sealed directly. By the way, a lot of control and loading mechanisms are omitted. While reducing the take-off weight as much as possible, it can also be regarded as maintaining longitudinal balance. made some contributions ?The T-shaped antenna added during the modification process and the resulting raised tail made the rear half of the aircraft a bit overweight. Generally speaking, when faced with this kind of situation, the main balancing method is to adjust the fuel distribution in the aircraft. However, the range of the Y-8 air-tight model is already ridiculously short. If the fuel is further affected, the actual performance of this early warning aircraft will be reduced. There is no need to count on the efficiency... As a factory airport, the comfort configuration is naturally average. Hearing that the chief said he wanted to get on the plane, someone quickly brought an ordinary metal ladder and set it up at the cabin door on the right side of the plane. At the same time, a power supply truck had also been parked on the other side. Several ground staff got out of the car and began to connect power to the aircraft. Fortunately, everyone''s legs and feet at the scene were pretty good, at least they wouldn''t fall down even if they climbed up a ladder. Because there was no sunlight and there was no heating when the plane was not started, it was actually colder inside the cabin than outside. ?Wang Xiaomo, who was a bit older, couldn''t help but tighten his coat. As a military transport aircraft designed in the 1950s, the cabin of the Y-8 is relatively narrow. Therefore, only a row of operating desks is arranged on the right side. Fortunately, the plane itself is long enough, so the seats are quite sufficient. The chief walked back and forth twice in the cabin, then sat on one of the seats and gently moved the trackball and keyboard fixed on the table. ?Two years ago, when Chang Haonan and Wang Xiaomo talked about the early warning aircraft, in addition to the aircraft itself, they also talked about some design details. For example, do not use an ordinary chair at the operating station, and do not place an ordinary keyboard and mouse on the operating table. The early warning aircraft is, after all, an airplane, and various situations may occur while flying in the sky. ??In case of strong convective weather or even malfunction or damage, the fewer things that cannot be fixed in the cabin and can fly around, the better. ?These details may seem ordinary, but for China, which is seriously developing an early warning aircraft for the first time, it is easy to overlook. ?In particular, Wang Xiaomo, who is responsible for the research and development of in-cabin equipment, is not an expert in aviation technology, and some of the experience of ground radar stations cannot be copied to the sky. At that time, he also praised Chang Haonan''s thoughtfulness. But in fact, these are the lessons learned from the early days of the Air Police 200 project of the previous generation... Can this console be turned on now? The chief turned his head slightly and asked the people behind him. The operation terminal can be turned on, but the radar is not working yet. Wang Xiaomo replied: In order to reduce the risk, the current array will be removed during the first flight and replaced with a counterweight of the same shape and weight, so the radar is not yet connected to power. The time spent by Factory 14 to produce this radar was almost longer than that of Factory 182 to produce the following aircraft. Naturally, it is very valuable. ??Although the risk of the first flight is very small according to the wind tunnel test results, it cannot guarantee that it will be foolproof after all. As soon as he finished his reply, another technician next to him turned on the power of the terminal cabinet. ??In this era, even Windows ??So the interface is not very good-looking. After the self-test, a schematic diagram showing distance and orientation appeared on the CRT monitor, but there was only a light spot in the middle. A few English prompts flashed on another screen next to it. The chief speaks foreign languages ??very well, and he can understand what it means that the radar self-test failed. There are many people here who are good at foreign languages, but for the radar we developed ourselves, is it possible to change the operating interface into Chinese? He didnt give any direct orders. After all, he came from a technical background and knew that at this time, it was not necessary for an outsider to guide an expert. The software is not difficult, but the number of bytes occupied by Chinese characters is a bit large. In order to ensure stability, the performance of the early warning aircraft operating terminal is far inferior to that of ordinary PCs, so we still use English for now. ?Wang Xiaomo quickly explained: However, when the hardware level improves in the future, it will not be difficult to change. We will strive to..." As soon as he said this, he was interrupted by the chief waving his hand with a smile on his face: Im just asking casually, it doesnt have to affect the normal research and development progress. Wang Xiaomo breathed a sigh of relief. ?Although he is considered well-informed, he is still a little nervous in this environment. Since there is no problem with the performance of the radar, what about the aircraft itself? Fortunately, the chief did not keep putting pressure on him, but quickly turned his attention to Liang Shaoxiu on the other side. ?Although the latter was well prepared, his heart sank when he heard this question. After all, there are actually only two types of early warning aircraft using phased array radars in the world today, including the Davidian Falcon and the Swedish Erieye. The radar of the Air Police 200 benefits from the advantage of being a latecomer, even if it is not as good as those two. It can definitely be called the top three in the world. Comparatively, the Y8 platform is a bit embarrassing... ?Of course, no matter what, the question still has to be answered: "The improved Y-8 air-tight platform has several key design indicators that are improved compared to the original Y-8C. After the modification is completed, it is expected to reach a maximum level flight speed of 580km, a range of 2,000 kilometers, and approximately 4.5 hours. Leave time blank. For the special aircraft platform, these three indicators are important. It''s a pity...it''s really not that good. The air-tight platform itself has a maximum unloaded range of only 3,000 kilometers. Now it is equipped with a mission load with a total weight of more than 5 tons, plus an antenna with huge induced resistance and a large vertical fin, and it can still maintain more than half of the range. Liang Shaoxiu has reached the limit of his abilities. In other words, in terms of flight performance, there is indeed a certain gap between it and the ring project. The chief uses a declarative tone. Actually, the numbers are here, and there is really nothing to ask. Liang Shaoxiu suddenly didnt know what to contact. He can''t tell the entire development process of the flying platform in front of the big leaders. ?But at this time, Ding Gaoheng, who had been following him without speaking a word, came to his rescue: Chief, the Ring Project is a strategic transport aircraft platform after all. It is destined to have advantages in terms of range and speed. The take-off weight of the Y-8 is only one-third of the Il-76, so it is normal that it cannot compare. "Moreover, our domestically produced early warning aircraft cannot only be limited to the Air Police 200 model. When we planned to produce mainline passenger aircraft in Shanghai, Comrade Haonan and I considered the possibility of using the domestically produced C909 platform to modify the early warning aircraft in the future. " Hearing this, the chief''s eyebrows moved, obviously he was somewhat interested in this. ??Although Ding Gaoheng is not an aviation professional, he has heard Chang Haonan paint a cake for him many times. Upon seeing this, he quickly continued to add details: Although the take-off weight of the C909 is lower than that of the Il-76, it is still a passenger aircraft. The basic model has a range of about 6,000 kilometers, and the luggage compartment space under the floor can be converted into a fuel tank. Tupolev has carried out similar upgrades before, which can increase the range to more than 9,000 kilometers. Even taking into account the impact of load and radar antenna, it is enough to provide 8-10 hours of available mission time. Furthermore, for commanders and fighters who perform long-term missions in the air, the comfort of the passenger aircraft platform is much better than that of the IL-76, a military transport aircraft. ??This statement is obviously painting a cake, but whether it is a domestic phased array radar or the C909 passenger aircraft that is already building a factory and preparing for production, it is obviously not something invisible or intangible. So this cake can at least smell. Wang Xiaomo, who was next to him, quickly picked up the conversation when he saw this: "Our radar research and development is also in line with this. In addition to the T-shaped array currently used by the Air Police 200, there are also fixed three-sided arrays in the disc-shaped radome, and even back-to-back rotatable dual-band two-sided array radars. Simultaneous research and development should be able to match the progress of domestic passenger aircraft platforms. Persuade your superiors to do something, and pay attention to just one point. The higher the level of leadership, the more issues and aspects to consider when making decisions. It is enough to say what you are told, and you must not keep pushing. Hence, after the two of them finished speaking, the cabin fell into silence again. Only the buzzing sound of the cabinet cooling fan surrounds everyone''s ears. ? And in fact, since the chief will specially arrange this trip, it means that he already has some inclinations in his heart. Personal inspection is just to eliminate some concerns. There is no need for them to say much more. I am about to enter a stage where the content is relatively sensitive. I have re-registered a fan group at the bottom of the book details page. If there are chapters that I really cannot post, I will post them in the group... (End of this chapter) Chapter 677 phased array radar Chapter 677 Phased Array Radar After a moment of silence, the chief took off his glasses with one hand and wiped them slowly: When I inspected Hufei in October last year, the responsible comrade told me that they were cooperating with the technical personnel of the Tupolev Group to assemble the first domestically produced C808 passenger aircraft. I wonder what the current progress is? Obviously, he has begun to mentally evaluate the prospects of domestically produced large early warning aircraft. Chief, Comrade Wan Shengren, the general manager of Hufei, submitted a report to me just the day before yesterday, and it happened to be about this aspect. ??Although he did not expect that the topic would involve Shanghai Aircraft Group before this trip, fortunately, the domestic passenger aircraft project is a top priority in Ding Gaohengs view, so there is no need to improvise: "Prototype No. 01 of the C808 passenger aircraft assembled with large components has entered the final factory inspection stage. It is expected to roll off the assembly line in March and complete its first flight before the National Day at the latest. Prototype No. 02 is expected to be equipped with a pickaxe The domestically produced D436T1 engine assembled by China Development Group is expected to roll off the production line before the end of the year and make its first flight before February next year. "The C909 passenger aircraft has also completed technical modifications in accordance with my country''s aviation industry standards. Currently, Hufei has established a No. 2 project team, which is responsible for technical docking with Tupolev and the Perm engine production consortium. When the final assembly workshop is completed Then you can enter the production process. As for the timetable...because it has not been officially put into production, there is no way to determine a very accurate project node for the time being. If we look at the efficiency of the C808, it should be able to complete its first flight before the end of 2001. In fact, the expectations reported by Hufei are a bit more optimistic. ?But thats what he was thinking just now, so he immediately stood up and responded: Yes, I will get started as soon as I return to the capital! "Can." Lets go down and talk. "The one on the early warning aircraft is actually quite good. It took about 14 months to complete production. Like the 346 Sea Star search radar that we are about to transfer to trial production, the antenna array box is 4 meters * 4 meters, and even It requires an additional tailor-welding step where the yield is not optimistic, and it is conservatively estimated that it may take more than 18 months to produce. The chief means... ?It''s just that Ding Gaoheng couldn''t speak so rigidly in front of the big leaders, so he still left some margin for himself. The chief nodded and agreed: However, if a report is to be produced, it should not be limited to the civil aviation industry. Wang Xiaomo explained: The latter was a little surprised to be called on again, but he still trotted forward: Yes, especially the packaging of large-sized T/R components, because it is mainly done by hand and is very time-consuming. The chief put his glasses back on. Although he made no other movements, it could be seen from his happy expression that he was quite satisfied with the progress. "After this key equipment is put into production, many aircraft structural parts that we could only import in the past, such as the body frame, landing gear, and central wing box of the C808 and C909, can gradually be made domestically. If you need it, sir, I will provide you with the relevant content. You can compile a report and submit it. ?The chief raised his hand and gently pushed up his black-rimmed glasses: Last year, when the Bi Sheng test ship was put into service, I heard from Comrade Shi Yunsheng of the Navy that the first test project after the ship entered service should be the shipborne radar you just mentioned? ??The chief stood up, led everyone out of the cabin, and returned to the apron. Then he turned around and waved to Wang Xiaomo, who had been pushed to a position slightly behind him: ?At this time, Ding Gaoheng actually had some plans in mind, but in this case it was not easy to speculate casually: Yes, the Bisheng is currently undergoing adaptive changes in the shipyard and is preparing to install our first domestically produced ship-borne phased array radar. Comrade Xiaomo, I remember you just said that domestically produced phased array radars are currently facing production capacity difficulties? Hearing this request, Ding Gaohengxin said that if it were a report on the entire aviation industry, I''m afraid you would see a name that appears very frequently in it... When Ding Gaoheng saw this, he naturally struck while the iron was hot: This year happens to be the 50th anniversary of the founding of the Peoples Republic of China. We can take this opportunity to summarize the achievements of China Aviation Industry in the past few years and submit it as a phased summary. In addition, in the Equipment Industry Department of the Science and Technology Commission, the 70,000-ton heavy-duty hydraulic press developed under the leadership of Comrade Chang Haonan has also begun final assembly and is expected to be completed in the first half of this year. After all, both models are cooperating with the Tupolev Design Bureau. As both parties become familiar with each other, the efficiency will definitely improve gradually, rather than remain static. "The plan is to be similar to the SPY1 radar used in the American Aegis system. After it is actually equipped on warships, each ship will install four sides at 90 to each other to ensure full 360 coverage of the surroundings. However, technically The active phased array route is more advanced in comparison. Hearing that the equipment was better than that of Americans, although the chiefs expression did not change, his tone became much lighter when he spoke: I remember a year ago, this model was said to be under development...and now its ready for trial production? ??Although Wang Xiaomo is not directly responsible for the 346 radar project, this matter is really closely related to him: The 14th Institute said before that it originally thought that the technology for large-size aluminum alloy tailor-welding would still take another stage to tackle, so the timetable was relatively loose. "But this time when we were working on early warning aircraft and cooperating with comrades in the aviation industry system, we heard that Shengjing already had experience in using inert gas shielded arc welding to weld large-sized aluminum alloy workpieces in order to produce heavy fighter jets, so we asked They went to provide guidance and solved a lot of problems. Although the 14th Institute of Electrical Engineering is also a military-industrial unit, it used to belong to the Ministry of Electronics Industry. ??It is not the same system as the aviation industry, which is affiliated to the Commission of Science, Technology and Industry for National Defense. Thats why there is a situation like You have the technology I need, but we dont know it. Although we have joined the same family now, it is obvious that the cooperation between them cannot be established overnight. It can be said that thanks to the opportunity to develop a domestic early warning aircraft, the progress of this project has entered the fast lane. So, if you want to increase the production speed of phased array radar, what do you need? The chief did not go around any more roundabout ways, but asked directly: In the future, we will need this kind of large-scale phased array radar in more and more places. It will definitely not work as it does now, and it will take more than ten months to build one. ?This problem is almost unnecessary for Wang Xiaomo to think about, because he is actually already thinking of a solution: "In a short period of time... we can only recruit a group of more high-level technical workers. This is relatively easy to say, as long as the organization provides a certain number of establishments." "In addition, we have purchased a batch of brand-new CNC milling machines from Torch-C.B. Ferrari Group, which was just established last year. They are expected to be delivered in the second half of the year. Once put into use, we can change the current manual workshop model of production, and the efficiency will naturally increase. Torch ??Torch Group is naturally famous among the big leaders. After all, given the age of their general manager, it is difficult not to be noticed. Its just ??It seems that this is not the first time I heard the name Chang Haonan today... The other side. ?After meeting with Li Jie, Chang Haonan decided on a low-key sales strategy for Sugon 2000T. ? Two days later, without any deliberate confidentiality or any publicity, the two parties signed an agency and dealer agreement, identifying Torch Group as the exclusive dealer of Dawn 2000T and the exclusive overseas dealer of Dawn 2000B. ?Of course, the latter is just an addition. ??Although the computing power of model B is slightly higher than that of model T, for foreign users, it is a technology two or three years ago, and there are no additional benefits. Even at a cabbage price, it is difficult to sell it. Professor Yang. ?In the conference room of Torch Group, Chang Haonan is deploying the sales strategy of the official version of TORCH Multiphysics software: Send a letter to all users who have tried our software and provided at least one valid feedback, telling them that they can get a long-term discount of 10% off the public sale price. In addition, if they subscribe for more than three years at a time, You can also add another 10% discount In this regard, although he dare not say how professional he is, as someone who has seen various marketing strategies in the Internet era, even if he just comes up with some methods based on the gourd, it is definitely an exaggeration to say that it is shocking, but it is still eye-catching. Not a problem. Just like Yang Huimei at this time. She was writing furiously, writing down what Chang Haonan had just said in her notebook. In a few years, the sales situation of TORC Multiphysics will no longer be a secret to Torch Group, and it can even become a classic case used in classes. ?However, after finishing writing, Yang Huimei read it again from beginning to end, and then frowned slightly: Mr. Chang, didnt you say before that you would keep a low profile this time? We have hundreds of trial users who have given feedback, and we will notify them one by one... Isnt that low-key? What needs to be dealt with in a low-key manner is Sugon 2000T, which has nothing to do with our TORCH Multiphysics. ?Chang Haonans answer highlights a confident and confident answer: It would be better to say that the release of TORCMultiphysics should be more publicized, so as to hide it from others. "As for a special edition software that is bundled with a supercomputer, don''t let the public know about it yet. You can try it out by finding a few users who are more willing to buy, and it''s best to use the phone. way, so that the scope of the spread will be more controllable. "I see" ?Yang Huimei quickly agreed with Chang Haonans explanation: So do you already have candidates, or do you want me to pick some from user feedback? Is this... ?Chang Haonan leaned on the wide backrest of the boss chair, raised his eyes to the sky and thought for a moment: Its better to start from Maranello. Ferrari won the constructors championship last year, and will definitely compete for the team and driver championships this year. There is an urgent need for this, and... they have deep pockets, and they probably dont care about buying a supercomputer. (End of this chapter) Chapter 678 Intellectual property rights still need to be protected Chapter 678: Intellectual property rights must be protected ?For a software like TORCMultiphysics, which has been operating stably for more than a year and has basically no competing products on the market, its official launch is actually a smooth process. The main thing is to push a new version and take this opportunity to start charging. So, the three people did not stay on this topic for too long. By the way, Mr. Chang. Just when Chang Haonan was about to announce the end of the meeting, Yang Huimei suddenly changed the subject: When I participated in other project negotiations before, I encountered many disputes over software intellectual property rights. In the past, our software was free to trial, so there was nothing to say, but now we are charging. Considering the reproducibility of computer programs, I think there is no guarantee that someone will not use pirated versions. Furthermore, even if we dont consider the problem of cracking encryption, we have released so many trial versions before. If they continue to use them, we only rely on a user agreement. Im afraid it will be difficult to impose operational constraints, right? When TORCMultiphysics was first released two years ago, Chang Haonan specifically found people to write user agreements in multiple languages ??for major regions in the world. ?However, Yang Huimeis concerns are indeed justified. From the late 1990s to the early 21st century, due to unclear legal provisions and difficulties in law enforcement, piracy problems were relatively rampant around the world. Not to mention China. How many software companies have been killed by piracy in recent years. In order to prevent theft, many games can only set up levels in the game content that cannot be passed by normal means, and then provide a guide book with the genuine software. Domestic office software WSP almost went bankrupt at this stage. "I think big companies and institutions should be fine. Our Torch Group, and of course Mr. Chang, are all registered with it. The TORCH Multiphysics software is a key basic industry project designated by the state. There should be no one there. Not open to this kind of thing. As the office director, Song Jingming doesnt know much about business-level issues, but he has a clear view of the general trend: So, I think the main problem may still be small and medium-sized enterprise users, as well as universities and research institutions. I already have preliminary ideas about universities and research institutions. Chang Haonan waved his hand directly: We have finally taken this opportunity to stand at the forefront of numerical computing in the world, and we must still play some social responsibilities in the field of education. "What''s more, cultivating new blood is also good for ourselves. After all, we can''t expect that others will never come up with products with similar functions to ours. But if users who engage in numerical simulation all over the world have adapted to the operation of TORC Multiphysics when they were students, , which will form an innate barrier for latecomers. At that time, they will not be able to compete with us in terms of computing performance, software ecology, and user habits. Even if they have more advantages in price, or even if they are free, they will hardly pose a threat to us. As a Chinese engineer who has experienced the 2020s, Chang Haonan is very aware of the benefits these hidden costs will bring to first-mover companies. In the years when commercial software was intensively localized, even if the file formats were common to each other, there would be many compatibility issues that required manual processing. As for those who cannot even open each other''s project files, the conversion is even more of a nightmare. It can be said that if it were not for the large wave of assistance from the other side of the ocean, whether it is software or hardware, there would be no such strong motivation in China to engage in similar types of substitutions. And now. Thirty years to the east of Hedong, thirty years to the west of Hexi. Chang Haonan, who finally had his turn to be the pioneer, could not miss the opportunity to fight back. So what you mean is ?Song Jingming opened his notebook as he spoke. "For educational institutions, we can provide a free student version of the software, which even includes a full set of tutorials and training. In fact, we only need to change the name of the current trial version, but we need to add some features so that we can check which project at a glance. The files are from the free version." Of course, this version is only for the educational process. If you want to use it in research results or projects, you still need to purchase our commercial version of the software. This is a good way to start cultivating usage habits among students ?Song Jingming wrote quickly in his notebook, quickly recording what Chang Haonan said: But how will this version be promoted? "I mean, we can''t just advertise that we have a free student version of the software." "This is simple." Chang Haonans answer is almost without thinking: I compiled a textbook on numerical simulation in the past two years "ah?" As soon as he started speaking, Song Jingming stopped taking notes: Have you ever compiled teaching materials? "ah" ?The latter''s sudden surprise made Chang Haonan a little confused: "These...are all our own people who know the basics, so there is no need to act so exaggerated, right?" ?Song Jingmings answer was a little stumbling: NoI just feel that the people who compile the textbooks should all be very old experts in the industry ?His voice became quieter and quieter as he spoke, and finally he could no longer hear himself This is, to put it bluntly, a matter of mindset. ?Song Jingming joined Torch Group relatively late, and has not participated in the development process of TORCH Multiphysics, and has little relationship with institutions such as Beijing Hang University. From his perspective, although Chang Haonan is indeed very powerful, he is still mainly a "young and promising leader of a state-owned enterprise". But if you think about it carefully, you will find that although Chang Haonan is not very old, he can already be regarded as a leader in the industry. You must be qualified to compile teaching materials. Chang Haonan also knew that the other party was in the dark under the lamp, so he just waved his hand and continued: In short, most domestic colleges and universities should be using my book for classes now. I just need to find some cases and compile something like a practice manual later, and let those colleges and universities open practical courses. He dare not talk about wider fields, but in the field of numerical simulation, he definitely has a monopoly in the entire field. A person is likely to have used the textbooks compiled by him since he was a student. After entering the laboratory, he read the papers published by him. When he was doing research, he was still using the software issued by Torch Group. After graduation, he encountered problems that he could not solve when doing projects. If you have a problem, you will probably have to find a solution from Torch Group... ??Yang Huimei on the other side is Professor Jinghang after all. She didn''t show too much surprise, but she shook her head slightly, feeling that it was a bit outrageous. Then she started to wonder why her children were not so up to date... ?The more she thought about it, the more uncomfortable she became, so she finally decided to change the topic directly: "That will be the case for universities and research institutions first. The focus is still on small and medium-sized enterprises. The annual fee for our software is at least six figures. Some small companies have great motivation to get trial versions for commercial use through some channels. This If the pen is counted, it is definitely a big loss. How about just catching the big ones and releasing the small ones? Song Jingming obviously didnt have any good ideas. At the turn of the century, many professors and researchers were actually starting their own small companies outside, using the resources of the school and their graduate students to help themselves make extra money. It is difficult to completely kill a company of this size. Simply catching the big ones and letting go the small ones will definitely not work. ??Yang Huimei is experienced and experienced after all, and directly rejected this idea: We dont know what is big and what is small at all. For example, I opened a large company, but outsourced all the business related to numerical simulation. The high probability of outsourcing is to a small company. Cant we just ignore it? "I think we should start from the legal perspective and set up a special legal department to target people who take advantage of this kind of loopholes and punch two to death from time to time. At least there must be a deterrent, otherwise wouldn''t it mean that people would be watching? Become a soft persimmon? In fact, Chang Haonans initial thoughts were similar to Song Jingmings, which was to focus on the big companies and let go of the small ones, and capture the users of large enterprises and institutions. ?But what Yang Huimei said does make sense. In the field of intellectual property rights, some companies have never lost when it comes to fighting for the lower limit... (End of this chapter) Chapter 679 Accidentally make history Chapter 679 Accidentally Make History In the final analysis, intellectual property issues are still limited by the times. It is definitely hopeless for Chang Haonan and the three of them to just think about it. Hence, Chang Haonan simply was not prepared to dwell on this issue for too long. What Professor Yang said does make sense. ?After thinking for a moment, he made a decision: However, dealing with the piracy problem is like Dayus flood control. It not only needs to be blocked, but also needs to be dredged, so we are prepared with both hands. "The first is, as Professor Yang said, to scare off a few outliers every once in a while. Of course, the main focus is to pick on those involving relatively large sums of money and serious circumstances, such as those who secretly use our software and can''t do anything in a year. There is no need to kill all those who are really self-employed with a few businesses, just think of it as a contribution to marketing. " "Second, from our group''s own perspective, we also need to provide better services to genuine users, such as business training and technical guidance, including the numerical calculation business department. I see that the number of orders received has skyrocketed in recent months, and it can also Consider giving priority to requests from users who have purchased genuine software. ?These two items are basically the answers for commercial software operations. As long as the service is good, a considerable number of customers will still be willing to pay. ?Of course, at this moment, the idea of ??"selling software is essentially selling services" is still somewhat fresh to people. Since Torch Group was able to compile several language versions of the user agreement before, it must have a team in the legal department. The latter couldnt help but shake his head: Mr. Chang, its not just me. ?But when he heard the second half of what Yang Huimei said, he suddenly remembered a joke he had heard before he was reborn. However, the wave just now had already raised the shock threshold of the other two people a bit high, so now they only showed a little bit of strangeness, and noted the second item mentioned by Chang Haonan in the notebook, and did not Too much of a surprise. It was indeed completely beyond Chang Haonan''s expectation to make such a big noise. Chang Haonan waved his hand: Our group even has two people in the office. There are currently five people in the legal department, which is already the department with the largest number of administrative staff. We just need to recruit a few more. Unexpectedly, Yang Huimei, who was not directly involved in the whole process, was more interested. ??Now that we have to compete with others in court, in Yang Huimei''s view, we must have more manpower. It is estimated that business and law professors all over the world are now paying close attention to the follow-up development of this matter. Even hundreds of papers related to the incident have been written..." wochas such a big impact? For Yang Huimei, the service aspect must be the responsibility of the technical department. As a layman, she does not need to intervene, so what she can do should be the legal aspect. It doesnt need to be expanded too much... ?Yang Huimeis movements stagnated: "Mr. Chang, a lawsuit involving a commercial dispute like this is different from an ordinary personal lawsuit. It doesn''t take one lawyer to handle it from beginning to end. Generally, a team of lawyers is needed...just like last year''s NSK fraud case. Procedure, both sides have hired legal teams of dozens of people..." ?Chang Haonan was a little surprised. Although he handled this matter by himself, after confirming that the Japanese companies in Europe had been firmly entombed, he did not spend any extra energy on it. But because it was just some clerical work before, the scale was not large. Not only that, but also proficient in the laws of many countries. A doctoral student has studied the various favorable factors after Britain joins the European Union for five years, with clear organization and strict logic. Have you been paying attention to the follow-up of this matter? "Well" Thenin this case, after we go back today, we will start preparing to recruit people and expand the size of the legal department? ??But before his graduation defense, Britain left the European Union. I wonder if there will be some unlucky graduate students studying Japanese business management who will be tricked by me... Chang Haonan''s low voice to himself was still heard by the other two, and the room was suddenly filled with happy air... After a moment, Yang Huimei put away her smile and continued to explain: "In short, since the 1980s, Japanese companies have had a relatively large influence around the world, especially in North America. Now, although Japan''s economy is slightly in decline, most people are still optimistic that they can restart rapid growth in the new century. " Chang Haonan almost stopped when he heard this, but he also knew that it was normal to have this view without opening his eyes, so he did not interrupt Yang Huimei, but allowed the latter to continue: "As a result, when this incident happened last year, it directly affected the world, especially developed countries'' views on Japan''s industrial prospects. For example, among the companies involved, the stocks of the most serious ones fell to less than one-third of their original value. And the recovery is very slow. The most pessimistic expectation is that Japans GDP growth rate this year may be even lower than last years -1.3%..." In the original timeline, several major fraud incidents broke out in the early 21st century, but they were basically isolated cases and the scope of their impact was relatively small. By the time it was later widely exposed, Japans economy was already on the verge of collapse. There were too many lice but it was not itchy, so it could only be regarded as the icing on the cake. Now he has detonated this big thunder in the late 1990s... I always feel like I accidentally made history. After all, in the eyes of people of this era, the plot is actually "the signs of recovery that Japan''s economy had already shown were directly interrupted due to a series of fraud and default issues, so it returned to a period of recession." I wonder if Nobuo Ikeda would add this paragraph if he wrote "The Lost Twenty Years" in this timeline..." ?Chang Haonan thought to himself. But after thinking about it, I felt that there was no need to wait for Nobuo Ikeda to write this book. After all, in this life, Chinas GDP may not surpass Japans until 2010. So the Ministry of Foreign Affairs can completely reverse the situation and take the initiative to spend money to find a Japanese writer to write a book, so as to cultivate a group of reflective monsters for the other side... ?Although this part that got sidetracked in the middle was a bit fun, after all, the business was not finished yet, so Yang Huimei quickly returned to the previous topic: "Anyway, although we probably won''t fight a lawsuit of this size and level, even if we just perform a show of killing chickens to scare monkeys, we will definitely need manpower." What she said actually made sense, but it was obvious that she had misjudged Chang Haonan''s current energy. We dont need to put on a show to scare the monkeys. The Ministry of Justice only needs to find the target accurately and collect some preliminary evidence. Chang Haonan replied: As for the real hands-on part...please ask the public security system to take action, and conduct a special operation to combat intellectual property infringement from time to time, and thats it. ?) ifier ??Yang Huimei, who originally thought her boss was a bit soft-hearted, was immediately dumbfounded: Can this still happen? She just thought that if the other party loses the lawsuit, she can pay a lot of money. In the end, Chang Haonan wanted to let the other party lose the lawsuit and just go in and use the sewing machine... ?This deterrence ability is really maxed out. ?Chang Haonanxin said that you dont know how a certain penguin will resist game cheats many years later. I also learned this from future generations. ?Of course I cant say this, so I can only treat it as my own original work: Protecting intellectual property rights should be an official action. It would be thankless to do it by ourselves, so we still have to cooperate with comrades in the judicial organs. This can be regarded as our contribution to the construction of the rule of law..." ?Yang Huimei opened her mouth, but she didnt know what to say. In the end, she just nodded: I understand, lets wait until there is a need. However, I have never done this job before, so I may need your guidance for the first time... ?Although she thinks she is well-informed, she has never experienced this attitude before Despite what Chang Haonan said, it is actually impossible for an ordinary individual, or even an ordinary company, to have the judicial system arrange a special operation to bring justice to you. ?But if you think about it carefully, Torch Group is definitely not an ordinary enterprise now, so it is normal to be treated a little bit specially. "Okay, if there are no other questions, let''s do this for now. I have a signing ceremony to attend tomorrow, TORCH Multiphysics, and the release of Dawn 2000T. You two will follow me more. If you have any difficult decisions, please contact me. I''m fine." Chang Haonan saw that the other two people were no longer talking. He also closed the notebook in front of him that was just a prop and had nothing written on it. He looked at Song Jingming on the other side: Also, Director Song? Song Jingming was originally immersed in the shock of "Why didn''t I know our company was so powerful?", but he came back to his senses when he heard his name: Im here, Mr. Chang. Help me get the agreement template to be used tomorrow. This matter is urgent and cannot be delayed. Chang Haonan said. ??The cooperation agreement he is going to sign tomorrow is naturally an agreement he had made with Wu Yifan before, asking the latter to recruit people from Ermao in the form of labor dispatch. ?Originally, there was no need to be so anxious, but it is already late February, and Eastern Europe will soon enter a nightmare-level turbulence period. ??For the Transcarpathian-Satu Mare smuggling route, there is only a window of about a week left if it wants to be transported by road... (End of this chapter) Chapter 680 Prepare to cause trouble, support from the East Chapter 680: Preparing for trouble, support from the east The next day, Chang Haonan and Wu Yifan signed a cooperation agreement in a low-key manner in the Torch Group''s conference room. According to the content, the latter Black Sea Import and Export Trading Company will provide Torch Group with up to 1,000 professors, senior engineers or other professional and technical personnel of the same level within five years. In return, Torch Group will pay an intermediary fee ranging from 15,000 to 50,000 US dollars for each person according to different personnel levels, of which 5 million US dollars will be paid in advance after the contract is signed, and thereafter in years. If the time period is too long, there will be more refunds and less compensation. ?Of course, this money does not really need to be paid by Torch Group. The Committee of Science and Industry provided a special fund for the Friendship Plan to pay for these expenses, and Chang Haonan only acted as a middleman that both parties trusted and were familiar with. As for the advance payment of 5 million US dollars, it is naturally not exactly what is written on the surface. Instead, it includes the freight paid by Wu Yifan to transport a batch of "mysterious goods" into the Balkans, which accounts for about five percent of it. one part. Throughout the Spring Festival holiday, Dianke Group has been working overtime to produce this batch of electronic components, and it was not until yesterday that the quality inspection was finally completed. ??Originally, the Air Force''s intention was to let it bring a batch of 57mm and 100mm anti-aircraft artillery shells that were about to expire. It was supposed to support the brothers in the third world in resisting hegemony, and by the way, it could save money on destroying them in two years. However, these two kinds of ammunition can be said to be everywhere in Southeast Europe. It is too abstract to take the trouble to fly them from China and then take the risk to send them to the Balkans. Moreover, when explosives are involved, the risks and shipping costs will increase exponentially. In the end, Chang Haonan still Rejected the offer. ?However, these contents are all conditions reached in private and will not be directly reflected in the content of the agreement. Its a pleasure to work with. After the signing was completed without a press conference or flashing lights, Wu Yifan stood up and exchanged the agreement documents with Chang Haonan, and then shook hands: I didnt expect that the biggest order Ive ever made since I entered the industry was with you, Brother Nan. ?Chang Haonan took the folder and handed it to Song Jingming next to him, indicating to the latter to archive it. After there were only two people left in the conference room, he spoke: "Old Wu, it''s better to recruit people in a short supply than in a hurry, and we''re not in a hurry. It''s enough that the first batch can arrive in China before the end of this year, but the batch of goods I asked you to transport must be transported to the destination before mid-March. " In addition, we should try to obscure our identity as much as possible during the whole process. It is best to use hints and other means to make the other side mistakenly think that it is the work of the Russians. ?Wu Yifan''s expression became serious. After all, this is also the first time he has done such an exciting job of transporting military supplies to a quasi-war zone: "The latter step is not difficult. The reason why the Russians came to me before was because I had done business several times with the officer in charge of reception at the destination, and we were considered acquaintances. As long as I didn''t say anything, he would definitely assume that I was Got the order from Moscow. But before mid-March He looked at the perpetual calendar hanging next to him with some embarrassment: "Brother Nan, it''s already the end of February, and you also know... Okay, you probably don''t know... But for smuggling, for the sake of cost-effectiveness, we wait until the day when the person we cooperate with is on duty before going through customs, but this I can''t predict the timetable in detail, plus I have to pass through a third country..." Halfway through speaking, Chang Haonan interrupted him with a wave of his hand: We paid millions of dollars, but we dont ask you to pay attention to cost-effectiveness. In this matter, safety and efficiency are the top priorities. If the funds spent in the middle are too much, we can make up for it later. ?In the original timeline, the start date of the Allied Forces Operation was March 24, but Chang Haonan could not guarantee whether the details would change in this life, and there was still time to prepare, so it was indeed a bit rushed. ?However, Wu Yifan still shook his head: Its not all about the money. I know what you mean is that we are worried that we will move too slowly and be unable to send them in before the conflict breaks out, but just because the situation in that area is tense now, we dont want to make too much noise. On the surface, what we are transporting is just a batch of electronic components. We bribe a few grassroots officers and veterans. They dont care what they are sent for. We just make the money and thats it. "But if you contact the person in charge with a higher level in a big way, they will have more things to consider. At this juncture, even relying on money alone may not be enough. After all, tens of thousands of yuan were spent in bribes to smuggle a batch of electronic products. No matter how you look at it, there are big problems inside. Chang Haonan has been a law-abiding citizen his whole life, and he really doesnt know as much about these things as Wu Yifan. But if this batch of things is still on the road when the conflict breaks out, it will be completely wasted. Looking at Chang Haonan who looked troubled, Wu Yifan gritted his teeth: "Okay, Brother Nan, I can take an airlift. The airspace in those countries is basically undefended at the moment. If we get a transport plane to fly lower and bribe the management of a semi-abandoned airport on the border, we can save the time." It saves about three or four days of the hassle of customs clearance by land, but..." Do I need to pay more? Chang Haonan asked. Its not...uh...well, its going to cost more, but its not the kind of money you think. ?Wu Yifan got a little distracted, and after a moment of thought, he continued: "Your shipment including the protective packaging weighs almost 4 tons. It can''t be pulled by a small plane. I have to build a serious transport plane, but I probably won''t need this thing in the future, so after it''s done Either you or the organization can help, but we have to buy this plane. Of course the price wont be very high. The Ermao Air Force subcontracts normal aircraft and scrapped aircraft and resells them. Its about one to two million US dollars. That''s not a lot of money. Whats more, you can get another plane and come back. The only problem is that unless this aircraft is an Il-76, other models will just be thrown into the dust even if it is brought back. But even based on the price of scrapped aircraft, the one that can be bought for one to two million US dollars is definitely not a strategic transport aircraft like the IL-76. Lets do this, Lao Wu. After thinking for a moment, Chang Haonan raised his head and said: The money to buy this plane, like the freight, will come from the funds of the Friendship Plan according to the agreement just now. But dont bother bringing this aircraft back to China. Just leave it with Ermao. You can just maintain it from time to time. I guess jobs like this will happen again in the future. Just treat it as an investment in the future. ?Wu Yifan took a deep breath. He felt as if he was tied to a pirate ship by Chang Haonan... But the matter has come to this, and there is no turning back. And its really fast to make money on this pirate ship Okay, lets do it! a. An airport covered with snow in Satu Mare County, Romania. A convoy of five Ural trucks is lined up and parked on the grass next to the runway. ?The cargo box of each truck is covered with a tarpaulin. Judging from the compressed distance between the rear wheel and the wheel hub, it should be in an unloaded state. ?This airport, which is now somewhat dilapidated and desolate, was built more than ten years ago when the Warsaw Pact was still in place. The primary purpose is of course war preparedness, but there are also considerations to improve transportation and commuting convenience in border mountainous areas. Therefore, a large amount of manpower and material resources are devoted to maintenance every year. But after entering the 1990s, due to well-known reasons, infrastructure maintenance in remote areas basically stopped. ? After ten years, the infrastructure of this airport has basically stopped, with only a few basic staff remaining. ?However, for people like Wu Yifan and others who run the "cross-border transportation" business, it is actually a good thing. ? He ??only spent tens of thousands of dollars in total to get the airport director to agree to provide them with a runway and refueling services. ? Its just that the airport radar has long been broken and there are not enough manpower, so they cannot provide guidance during the landing process, and they have to do the loading and unloading themselves. Angkor, its been 10 minutes since the estimated time, why hasnt the plane disappeared yet? In the cab of the first truck, Yan Yong, Wu Yifans deputy and the driver of the first truck, raised his hand and looked at his watch, looking slightly anxious. They have known each other since childhood. When Wu Yifan graduated and went abroad to pursue his career, Yan Yong was with him. He is also the only one of the five drivers who knows the specific route and schedule. ?However, we dont know anything about the specific goods being transported or the shipper. Dont panic, after all, we have to fly nearly 400 kilometers, and its all at low altitude, so we cant control the time so accurately. Actually, Lao Wu in the co-pilot''s seat was also a little impatient. He was not afraid that the pilot would run away with the plane, but he was worried that flying at very low altitude in the mountainous area would cause it to crash easily if something malfunctioned or got lost... But in front of his subordinates, he still had to show that he had everything under control. ?So in order to divert my attention, I had to turn on the radio in the car and adjust the **** to try to find a channel that I could listen to. The USS Theodore Roosevelt is reported to have approached the Adriatic Sea, putting pressure on... and the EU... issued an ultimatum..." ??The signal in the mountainous area is really average, and Wu Yifan''s Romanian and Russian are both weak, so he can basically only get a rough idea. But its enough to get useful information. Speaking of Angkor, the Balkans are not peaceful recently. We are going there to transport things at this time, so we wont be trapped in it, right? Go and come back quickly, no. ??Wu Yifan shook his head, his tone decisive. ?He knew that he must not show any hesitation, otherwise others might not dare to make this trip. I dont know who it is, but at this juncture its still..." Just as Yan Yong opened his mouth, he was interrupted by an increasingly loud roar. ??Wu Yifan turned off the radio, stuck his head out of the side window, and looked at the northern sky with his telescope. A strange aircraft with engines mounted on the wings was aiming at the runway, extending its landing gear, and gradually descending. It was the An-72 transport plane that Wu Yifan urgently purchased from the Ermao Air Force. He originally planned to buy an An-24 or An-26 to solve the problem, but the maximum payload of these two models is only about 5 tons, and the age of the aircraft is generally upwards of 20 years. The risk of low-altitude flying with large loads is really a bit high. high. Thats why we finally made a big one. The good thing is that there are only a few of this aircraft in the world and its features are so distinctive that you dont have to worry about making mistakes. ??Wu Yifan picked up the walkie-talkie placed next to him, opened the door and jumped out of the cab: Everyone get out of the car and get ready to load! Brothers who havent joined the group yet, remember to look at the bottom of the book details and add the group. In case there are chapters or extras that really cannot pass the review, they will be posted in the group (End of this chapter) Chapter 681 Mysterious radar components Chapter 681 Mysterious Radar Components ?This An-72, which was still painted with the Soviet Air Force livery, started to slow down gradually after bouncing on the runway for a few times because the descent rate was too high. Wu Yifan was terrified when he saw it. This is not the first time he has "cooperated" with people at this airport. ?However, in the past, small aircraft such as Cessna were used to transport small-volume, high-value materials. Or more often, they take people across the border illegally. This is the first time in several years to serve such a large medium-sized transport aircraft. Angkor, is this pilot you hired okay? Yan Yong, who had never seen a military transport plane landing before, was so frightened that he subconsciously took a step back, probably because he was worried that the plane would overrun the runway: If you drop the goods from the previous store, according to the rules, we have to pay three times the compensation..." ??Wu Yifan Xin said that if this batch of goods is dropped, it will not only be a matter of triple compensation. Brother, I am afraid that I will be directly upgraded to a historical sinner, and I will not be able to return to the country to see Brother Nan in the future. ?Of course, he still had a determined tone: Of course its reliable. The test pilot instructors we hired from Antonov Company are better than the test pilots. Do you understand? You dont have to look at how difficult it is to land on this broken runway. Its full of cracks and a section is broken in the middle. It can only be used at half its length. Its good to have it finished like this..." Fortunately, the entire landing process was uneventful, and the plane finally taxied smoothly to the trucks that had been prepared. Yan Yong looked at the cargo door that was slowly opening not far away. He took out a pair of gloves from the car and put them on, but he didn''t stop talking: That will cost a lot of money, right? "Okay." ?Wu Yifan replied noncommittally: I have contacted the country before. We have not designed many large aircraft in the past, so we are now in urgent need of this type of test pilots. "When this business is over, I plan to put this person on the first batch of labor dispatch lists and send him back, and earn another intermediary fee. Every time he comes back, it will basically be a period of time in vain." As a close confidant of Wu Yifan, Yan Yong did not know the ins and outs of the friendship plan, but he still knew about Wu Yifans labor dispatch to the country. At the moment, he just felt that the other party was a natural-chosen capitalist: Fuck... Angkor, you wont sell me someday and ask me to help you count the money, right? "If you''re afraid of being sold, work hard. Remember not to speak Chinese in front of outsiders later. Just pretend that we are Buryat Mongolians from Siberia. We can''t speak Russian very well. Do you understand? " In addition to Yan Yong, the convoy included car soldiers and guards temporarily hired from several different armies of Ermao and Sanmao, as well as an officer from the Serb side who came over to pick up the car and **** it. They did not know each other at all. Nor will they know the true background of Wu Yifan. In fact, although the latter looked burly in school, they were generally fair and fair. ??Its just that after two years of hard work, I have become a bit like a nomad. He was a little uncomfortable at first, but soon realized it was a good disguise. ?In a business like smuggling, it was impossible for anyone to inquire into the matter without opening their eyes, so he simply said nothing and was happy for others to misunderstand him. Even if someone sees that he is not a pure Buryat, he will usually go to Central Asia. "OK" Yan Yong has seamlessly switched to Russian with a slight accent. After speaking, he trotted forward to inspect the goods. Nicholai! ??Wu Yifan naturally did not need to take action himself, he just shouted in the distance at the top of his voice. ??A tall man who looked like he was a soldier at first glance came speeding from the side of the last truck in the distance. Zhamusu, is all the cargo on this plane? Nicholas Barsac, the officer sent by the recipient to receive the shipment. ??It is also one of the acquaintances that Lao Wu mentioned to Chang Haonan before, who did business with him in the Balkans. ?However, the so-called "acquaintances" who do this kind of business are definitely different from acquaintances in the general sense. ??So Wu Yifan has always contacted the other party under the pseudonym of "Zhamusu", and he has never even missed his real name. ?Of course, the other side must also know it. Just tacitly aware of it. As long as you know that the other party has what you need and a trustworthy channel, it is enough. Yes, its all on the plane, lets go and take a look. ??Wu Yifan tightened his untitled Soviet military coat to prevent the AKS74U he was carrying behind his back from being accidentally exposed. In the cargo hold of the An72, which is not very spacious, there are probably hundreds of crates that look ordinary on the surface. In fact, there are not many components that really need to be transported, but even if he has cleared all the key checkpoints along the way, he still has to do some superficial work. So quite a few of them are real computer accessories. An airport official was standing next to the tail hatch, pretending to inspect the goods with Yan Yong. It seemed that he was preparing to issue a customs inspection form - with this thing, this batch of goods would be considered whitewashed in Romania. You found a special plane to transport cargo, but there are ten boxes of CDs inside? Looking at the customs declaration information in his hand, the airport official asked a little nervously even though he had already collected the money. Yan Yong actually didn''t know what was inside, but he knew that this kind of low-level kid only wanted to collect money, and he wouldn''t care about you even if you were transporting nuclear bombs. He probably just asked out of curiosity, so he just kept saying it. Nonsense: WellI prefer watching movies "oh" Unexpectedly, the other party actually showed an expression of realization: You want to transport that kind of film to the west, right? What kind of movie? Yan Yong looked confused, but he still swallowed the words and nodded with an expression of "I understand everything and don''t need to explain". ?Fortunately, for the sake of money, the other party did not continue to inquire further. He simply stamped a few stamps on the checklist and left. ?Wu Yifan, who heard this conversation nearby, paused, feeling that his reputation might be compromised. Since the 1990s, countries such as Ermao, Romania, and Czechoslovakia have almost become hotbeds of various underground industries. ??He is probably regarded as a pimp who makes underground **** videos and may also be involved in human trafficking. ?However, it cannot be considered a bad thing at this time. So he just shook his head and took Nicholas into the cargo hold. The second digit of the goods number is 3, 5, or 9. It contains what you need. The rest is a gift from me. According to Lao Wu''s guidance, Nicholas opened several boxes in succession. As an officer who has worked at the air force base for a long time, he naturally quickly recognized what the equipment inside was protected by special packaging. No wonder these goods have to be shipped to you specially. They are really different from the batches I received before Nicholas carefully picked up a traveling wave tube amplifier and looked at the calibration on it at the light from the cabin door. It''s all in Russian. Sent from Moscow? Of course he can understand Russian: The specifications are so good? Well...it is indeed sent from the east. Wu Yifan gave an ambiguous answer, which cant be considered a lie: I heard that it is the latest product that can increase the radars detection capability several times, but I dont know much about the technical issues. Nicholas feels that the craftsmanship of this thing does not look like Russian craftsmanship, but after all, it has been so many years since the disintegration, and maybe capitalism does have merit... And there are instructions? He turned around and opened another box and found that it contained documents stacked together and sealed with brown paper. ?Wu Yifan nodded: Thats because after all, the Yankees are powerful now, and no one dares to send people directly to you like they did in Annan, so thats all we can do. If you act quickly, you should have enough time to learn. Nicholas bent down, simply took out a few of them and flipped through them: P18 radar modification Multi-point passive positioning radar operation manual The firing tables of the -19 anti-aircraft gun and the -60 anti-aircraft gun...wait a minute, the anti-aircraft gun firing tables are so thick? ?This time he couldn''t hold it back and flipped through the two documents. Then I found that the shooting elements corresponding to targets with different speeds, directions and heights were even written in it. Nicholas suddenly felt that these things seemed a bit too detailed. "never mind." He shook his head, straightened up again, closed the cover of the cargo box, and turned to Wu Yifan behind him: Zhamusu, I dont know if we will have a chance to meet again in the future. However, thank the person who brought this shipment over for me. (End of this chapter) Chapter 682 Stealing Japanese business Chapter 682 Stealing Japanese business Hearing what the other party meant, Wu Yifan seemed to be a little suspicious of the source of the goods. ?Of course, he is confident that it is definitely not a problem with his acting skills. Before returning to Eastern Europe this time, Chang Haonan, as one of the core executors of the entire plan, also picked out some tellable parts and informed Wu Yifan, so the latter also knew that the items he was transporting this time were actually radar components produced by China. From this, it is not difficult to speculate that there may be some flaws in the details of this batch of goods. After all, superficial places such as packaging, logos and instructions can be disguised as Russian, but things like the production process cannot be changed. Nikolai is a professional who has been exposed to Soviet-made equipment for a long time, so it is normal to see some tricks. ?However, Wu Yifan also knew that the Russians actually had nothing to do with the Balkans for a long time, otherwise they would not have found them as smugglers to transport goods. After so many years, it is understandable that the process has changed. So the other party is just doubtful at best now. The key is that we must not admit it at this time, we must bite it to death and say that this thing was sent by the Russians. ??In fact, Wu Yifan didn''t have any background. He had only met a few Federal Security Service officers who came to him for help. Moreover, even if the other party really had any ideas, it was impossible for him to talk to him as a smuggler. ??But first of all, I dont know how to translate these eight words into Russian faithfully and elegantly. Secondly, the ending for people who hear this sentence is not so wonderful. The meaning is really not good... So, he shook his head: But the conversation has already ended, so I can only bite the bullet and continue to make up. Before leaving China, when Chang Haonan sent him to the plane, the two of them also talked about the situation in the Balkans. I will bring you a message of thanks, but now that its over, Ill tell you clearly. Although it is no longer the Cold War, and Moscow cannot directly provide military support, the people from the Federal Security Service made the rounds before I came here. ??Nicholas sighed, shook his head and said: The equipment we have is basically still at the level of the 1970s. It has not been seriously updated since more than ten years ago, and the training over the years has also been neglected a lot..." Fortunately, Nicholas on the opposite side had no way of knowing Wu Yifan''s ups and downs of thinking just now. He could only see from the surface that the latter was coping with it easily, and the topic he was talking about was related to his country. He had already put aside his doubts just now. Gone to the back of the head. They believe that although military conflict is basically inevitable, the other party is also divided into several interest groups. Now it seems that they have the same goal just because everything is going smoothly. "As long as you can cause some symbolic losses to the invading enemy, there may not be a way to break the situation..." More importantly, there is also the issue of internal separatism. In the past few years, they have attacked us and used the excuse of protecting human rights..." ??Now I have to say it through the mouth of the Federal Security Service. "How to say?" "oh?" ? halfway through Wu Yifans words, he couldnt help but recall a movie he had watched before. He originally wanted to say, If you hold on firmly, there will be a way. Alas...it sounds simple, but in fact its not that easy... However, his attention to the international situation over the years has been limited to the parts related to his own business, and his understanding of further places is really limited... Finally had to give up. Nicholas, who was about to leave the cargo hold next to him, did have some doubts, but after hearing Wu Yifans words, he suppressed them: Fortunately, in a hurry, I still remembered something - All we can say is, lets do our best... ??Wu Yifan said that this group of people was just to dispel Nikolai''s suspicion. Now that the goal has been achieved, he naturally would not follow along with emo, so he immediately patted the other person''s shoulder: Everything depends on people, there will always be a way. ?Then he pointed to the crates around him: Lets unload the goods first. Anyway, after these things are shipped over, the chance of winning will always be better. After saying that, he turned around and walked outside the cabin. Zhamusu, where are you going? I have to report the news back. If the goods can successfully enter Romania, it is basically equivalent to completing 90% of the journey..." Wu Yifan did not look back. In a place like this, the only way to deliver messages is by satellite phone. At this time, commercial communication satellites are basically American, so it is naturally impossible to directly talk to Chang Haonan who is in China - even if the two of them talk in secret words, in many cases the act of "making a phone call" can explain a lot of things. . So he first contacted his partners in Ermao by phone, and then the latter contacted the Chinese side. ?Of course, the specific content is still a secret word, and even his partner is not fully aware of it... Generally speaking, the speed and reliability of message delivery are negatively correlated. So, when the news that the shipment had successfully arrived in Romania reached Chang Haonan, it was already early the next morning in China time. This also made him feel relieved that he had been worried about the past few days. After all, there are still risks in using a transport plane to fly at ultra-low altitude in mountainous areas and cross the border between the two countries. ?This news was transmitted directly from the Black Sea Import and Export Trading Company to the Torch Group. On the surface, it was just ordinary content such as project progress and reports. So there is currently only one person in the country who knows about it, Chang Haonan. After breathing a long sigh of relief, Chang Haonan picked up the phone and dialed the number of Song Jingmings office: Director Song, please check for me to see if I have any important plans this morning. When he was an engineer before he was reborn, he sometimes watched TV series with Chang Jiayao, and often complained in his mind about how the bosses couldn''t even remember their schedules and had to ask their secretary to remind them. As a result, I am now my own boss ??It smells so good! When people do not need to attend classes or attend classes, their concepts of date and week are actually very vague. ?Chang Haonan is the one who stays up day and night, so the situation is even more serious. ??Now the TORC Multiphysics software has just been released. Although most of the work has been handed over to Song Jingming and Yang Huimei, there are always some important things that require the general manager himself to come forward. As a result, he found that he really needed someone to remind him of his daily schedule... UhMr. Chang, this morning, I had arranged to meet with representatives of the French GTT Company and the Hudong Shipbuilding Group. You said this was very important ifier ?Chang Haonan raised his eyes and glanced at the perpetual calendar hanging on the wall, and also remembered this matter. He was originally planning to go to the Science and Technology Commission to inform Ding Gaoheng of the successful landing of the goods. ??Although it is enough to make an internal call, the latter accompanied the senior leader to Nanzheng some time ago, which was obviously related to the situation of domestic early warning aircraft. Chang Haonan also wanted to take advantage of this opportunity to ask about the specific situation. So its better to meet in person. ?Now that the two projects he is working on are approaching completion step by step, it is also time to consider longer-term plans. But meeting with GTT company representatives is indeed an important matter. ?This company holds the core patent for the membrane cargo tank of LNG carriers, which has great advantages over the independent tank technology developed by MossRosenberg in Norway. ?In his last life until he was reborn, no matter who it was, anyone who wanted to build an LNG ship could not completely avoid this company. Nowadays, GTT Company is in a stage of rapid development and has not yet reached the stage of monopoly. This time it comes to cooperate with Torch Group, which is obviously an excellent opportunity for the latter. As for the reason for coming here... Chang Haonan certainly has no way of knowing the details, but generally speaking, he should be looking for a new partner. In the 1990s, China''s shipbuilding industry had not yet developed much. The worlds shipbuilding tonnage is basically evenly divided between Japan and South Korea. Of course, as of 1999, Japan still had some advantages. Of course, Party A who places an order also knows that eggs cannot be put in the same basket. Whether it is to avoid risks or improve bargaining power, they will basically choose a Japanese shipyard and a Korean shipyard as point AB suppliers respectively. ?Originally, this situation was going to last until about 2010, when China gradually replaced Japan and became the new shipbuilding duo with South Korea. ?However, this time, because of the huge quality fraud scandal that broke out in the Japanese manufacturing industry last year, especially the behavior of NTN and Chunakajima Special Steel directly purchasing finished products from China and then selling them under brand names, the situation has changed in advance. ?In this wave, companies like GTT have obviously begun to consider whether to transfer the eggs originally placed in the Japanese basket to China. (End of this chapter) Chapter 683 LNG ships, the dispute between China and South Korea Chapter 683 LNG ships, dispute between China and South Korea After some tangle, Chang Haonan decided not to change the original schedule. After all, going to the Science and Technology Commission is almost like going home to him now Go home, you can go back anytime. ??And judging from the current situation, the start date of the Allied Forces Operation is not expected to change much compared to March 24 in the previous life, which is still less than half a month away. He was in China, and there was really nothing he could do except wait. So its not that important to inform Ding Gaoheng half a day early or half a day late. As for the early warning aircraft, there is no urgency... No matter how fast the Turbofan 10 is, it will take until the new century to complete the finalization process. The die forging press is about to enter the final stage. However, this kind of giant equipment does not mean everything will be fine once it is built and delivered. At least the initial trial production stage still requires technical support from their project team... In short, you still have to take care of the things in front of you first... It can be considered a very practical project. ?There seems to be no reason to make such a big fuss and send a large delegation of more than 20 people to chat with him for a long time. As for the Hudong Shipyard in China, strictly speaking, it cannot be regarded as a separate party. Basically, I am planning to purchase the TORC Multiphysics software and hope that Torch Group can provide some technical support in checking the structural strength of LNG ships under ultra-low temperature. Mr. Chang, a comrade named Cai Honggui has a letter of introduction from Hudong Shipyard, saying that he is one of the members of the delegation that just participated in the talks and wants to have a private interview with you. Even if you are worried about something unclear, just send a few people to explain it and that will be it. And this is largely due to the assist last year. But after I actually started, I found that the content proposed on the other side was a bit boring. The reason why he can be remembered is because this person has a big-shot hairstyle. But the problem is that these two things are already very mature businesses for Torch Group. Just make a phone call or go to the official website to place an order. ?However, after ending the meeting with some doubts, he quickly received another call from Song Jingming. ?This is normal. In the partnership to build LNG ships, shipyards are basically in a relatively weak position. After all, although there are certain technical barriers to the "ship"-related parts of LNG ships, in general, the "LNG"-related parts are more difficult. Since his rebirth, the foreigners Chang Haonan has interacted with the most seem to be French and Italians. Chang Haonan briefly recalled it, and remembered that there was indeed such a person just now, but he was sitting at the end of the opposite side and did not speak during the whole process. ? Chang Haonan originally planned to promote the Sugon 2000T supercomputer and the special version of TORCH Multiphysics, but in the end he gave up due to concerns. ?Especially because Hudong Shipyard is still not well-known internationally, it is actually quite lucky to be included as a candidate by GTT. Originally, Chang Haonan was quite looking forward to this meeting. The two team leaders, although not explicitly introduced, it is obvious that one is responsible for management and the other is responsible for technology, named Eric Michalski and Karim Shapo respectively. ?The team sent by GTT Company is also very different from the previous European companies. They came here with the GTT team as cooperative members. The reflective kind. Okay, let him come to my office. He had planned to change his clothes and go directly to the Science and Technology Committee, but now he had to put on his suit jacket again. A few minutes later, the bald man appeared outside the office and knocked on the door cautiously. "Is this Comrade Cai Honggui? Come in quickly." Hearing Chang Haonan''s greeting, the visitor quickly walked into the house. Hello, Mr. Chang. The two shook hands. "sit down." Chang Haonan reached out and gestured to the chair in front of the desk, motioning for the other person to sit down, and then gave the two of them a glass of mineral water: Come to me alone. Is there anything you cant talk about at the meeting just now? In fact, at the beginning, he was somewhat reluctant to let go when facing subordinates who were older than himself, or even one generation above him. However, after two years of training, he has adapted very naturally. ??Cai Honggui took the cup with both hands. Seeing that Chang Haonan had already made a guess, he didn''t go around in circles anymore, but nodded directly: Thats right, its about LNG ships. During the meeting just now, you should have noticed that GTT was not very enthusiastic. At least compared to the size of the delegation they sent, the topic setting was a bit too bland. Chang Haonan certainly noticed it, but the other party had not yet explained his intention. He certainly could not show too obvious an attitude in advance, so he just acted noncommittally and signaled the other party to continue talking. Actually, when this group of people first arrived in China at the end of last month, the situation was not like this Cai Honggui couldnt see what Chang Haonan was thinking, so he had no choice but to continue: "The membrane cargo tank developed by GTT Group is currently the first generation product that is mainly put into use. It is mainly built by Japan and South Korea. Our factory has also introduced relevant patents before and produced two small and medium-sized membrane LNG ships. , but basically unable to capture market share. "Now because of what happened last year, GTT feels that Japanese shipyards may not be reliable in the long run, so they want to include our Chinese shipyards in the sequence of certified shipyards. However, for the first generation of products, they have already followed Japan and South Korea are too deeply tied to each other, making it difficult to separate their businesses, so the main consideration is the next-generation technology that will be updated soon. On the second generation of membrane cargo tanks, GTT is currently developing two parallel routes, namely the Gas-Transport system and the Technigaz system. The difference between them cannot be explained in a few words, mainly in the insulation and leakage prevention of the inner wall of the cargo tank. The technical routes are different. "South Korea''s Samsung Heavy Industries has manufactured a large number of first-generation products, so it is natural to bet on the Technigaz system. The inner wall of the cargo hold of this system is made of corrugated composite panels. It has advantages in cost, volume and weight, but it is very difficult to build, and we Due to technical limitations, we still choose to work on the relatively traditional Gas-Transport system. Although more invar steel plates will be used, fortunately, the inner and outer layers have complete load-bearing and shielding structures..." ?This Cai Honggui obviously also has a technical background. After talking about topics related to shipbuilding technology, the initial nervousness quickly disappeared. "Originally, because the Technigaz system had some problems with the adaptability of the cargo hold and the ship itself, GTT has recently become more optimistic about the Gas-Transport system and is planning to give our factory two orders to test the waters first. If there are no problems, we will start Mass production of LNG ships equipped with Gas-Transport systems. But just a few days ago, Samsung Heavy Industries suddenly announced that they had solved the cabin adaptation problem, so GTTs attention has returned to the Technigaz system Chang Haonan had not had an in-depth understanding of the situation of the shipbuilding industry before, so after the other party finished speaking, he still thought about it for a while. ?However, the overall plot is still very clear. Since the Technigaz system is superior in terms of cost, volume and weight, GTT will naturally not continue to invest too many resources in the Gas-Transport system. ?This is also consistent with their performance in the talks just now. ? It only purchases development tools and numerical calculation business from Torch Group, rather than joint development among the three parties. You must know that although GTT holds the core technology of LNG cargo tanks, it is impossible to build a ship with just a cargo tank. If it really wants to be implemented on LNG ships, it still needs to cooperate with the shipyard. ?Of course, considering that the shipyard itself may not have enough R&D capabilities, sometimes a third party such as Torch Group is required to join. Now that GTT has directly given up on joint development with China, it basically has the idea of ??"using the Gas-Transport system as a backup" written on its face. So, what Manager Cai means is... "Our factory has purchased most of the core patents of the Gas-Transport system. Now that GTT is not very enthusiastic, I wonder if our factory and your company can directly cooperate to convert LNG using this technical route. Has the ship been developed?" (End of this chapter) Chapter 684 We really need a research team Chapter 684: We really need a research team ?If it is to be jointly developed, even if the technology developed is shared by both parties, it certainly cannot be pushed to the Numerical Computing Business Department. ?Of course, in most cases, the same group of people will do the work in the end, but more attention must be paid to the reception specifications. You can''t just send out any salesperson. On the other hand, technological cooperation not only means sharing rights, but also means sharing responsibilities. Even taking into account the gap in R&D capabilities between the two companies, I am afraid that the gap on the Torch Group''s side is larger. So it is not like the numerical calculation business, where you can start work just by getting a list of requirements. Always know more about the actual situation. This is true even if the other party is an enterprise under the Science and Technology Commission system. Therefore, after much thought, Chang Haonan decided to take a slow approach first: "Manager Cai, you should also know that our company has not had an in-depth understanding of the shipbuilding industry in the past. It would be fine if we just took on some ordinary business. However, the technical cooperation between the two companies has a great impact, and we certainly cannot make arbitrary decisions. Therefore, I will take this matter Lets take a note for now, and we will send comrades from the office and technical department to have in-depth contact with you later, how about that? Cai Honggui originally discovered that the French GTT was no longer interested in the Gas-Transport system, so he came to Torch Group to see if there was a way to break the situation. Naturally, he knew that the other party was a company with Shanghai. It is impossible for a second-level state-owned enterprise on the same level as Dongchang to sign a contract with just a few words. Although the four major military industry corporations have completed the de-administrative reform (the aviation industry is still delayed for another year due to General Manager Chang''s operation), de-administrativeization is not de-organization, and it still needs to be governed and supervised by superiors. . In other words, doing business between state-owned enterprises is often more troublesome than between private enterprises. ??This time I was able to meet with Chang Haonan in person and explain the whole incident clearly, which was beyond expectations. I immediately nodded in agreement: Mr. Changs words are reasonable, and we really need to be cautious about technical cooperation. "After I go back this time, I will sort out the technical information related to the Gas-Transport system and LNG ship manufacturing, and then have someone send it over. In addition, if Mr. Chang wants to further inspect the situation of our factory, you are always welcome to visit us. guide" ?Compared with aviation manufacturing, except for some special products, such as nuclear submarines or floating nuclear power plants, ship manufacturing is relatively less sensitive. So when it comes to technology patents, protection in exchange for disclosure has indeed been achieved to a certain extent. Even if the Hudong factory does not proactively provide relevant information about the Gas-Transport system, if Chang Haonan wants to check it, he can find it with a little effort. Its just that it cannot be used for profit without purchasing authorization. ??Chai Honggui wants to give it now, but it doesn''t count as leaking business secrets. Of course, that''s what it says, but LNG ships are such complex system engineering. The words "relevant technical information" sound easy to say. In fact, if it were converted into a physical form, it would probably have to be loaded on a truck, and it would have to be four in front and four in the back. Eight kind. ?Now that the two sides have only had initial contact, it can indeed be seen that they are very sincere when others make such statements. After all, even public content has unique value after being systematically organized. Otherwise, there would be no such thing as open source network intelligence. You and I are on the same level in terms of organizational relationship, and we are not in the same system, so it is still out of the question to come and provide guidance. Chang Haonan has now passed the stage of feeling embarrassed or arrogant about this kind of blowing and patting. He immediately waved his hand and replied: In addition, my personal schedule has been tight in the past month or two, and I may ask the technical backbone below to make preliminary contacts, but we can wait until then to make specific decisions... Anyway, I would like to thank Mr. Chang in advance and wish us smooth cooperation... "You''re welcome" ??Although he only received a verbal commitment from Chang Haonan, when Cai Honggui left, his whole spirit became different. Outside the Torch Group, a young man holding a windbreaker in his hand saw Cai Honggui coming out. He quickly stepped forward and put the coat on the latter. Master, what are you doing... When he just came out of the conference room, he saw that Cai Honggui looked like he had aged twenty years. However, after only half an hour or so, he seemed to be young again... I just had a conversation with Mr. Chang from Torch Group. With the help of his apprentice, Cai Honggui stuffed his arms into his sleeves and adjusted the collar of his coat. ? He ??was a welder in his early years. Due to long-term work in high-salt, high-humidity and low-temperature environments, his arthritis was quite severe. Especially in winter, it was difficult to wear a coat. After completing this series of actions, he took out his gloves from his pocket and put them on, and continued: Mr. Chang said that technicians will be sent to our factory to check the situation in a while. If there are no problems, you can consider working with us to continue the development of Gas-Transport system LNG ships! Really? The disciple next to him looked happy when he heard the news, but it only lasted for a moment, and soon returned to his worried look: But...even if the Gas-Transport system is completed, compared with the Technigaz system, loading the same volume of LNG requires a larger and heavier ship. It seems that it will still be difficult to compete with others..." ??Cai Honggui almost rolled his eyes when he heard this, raised his hand and wanted to hit his apprentice on the head: There is no way to achieve success in engineering in one go. Dont be too ambitious. If it werent for the quality problems that a group of Japanese companies had last year, we wouldnt even have a chance to join the game now. To be able to stand on the same track as others now is something that we people didnt dare to think about in the past. Why do you still feel dissatisfied? After all, the apprentice was young and had quick reactions. Cai Honggui didnt really mean to hit him, so he easily dodged it with a sideways jump. Then he covered his head and said to his master: I mean, can we also consider using the Technigaz system for shipbuilding? Cai Honggui''s face froze, he lowered his head and hesitated for a moment, then shook his head: GTT Company itself is not involved in the ship production business, so it is not difficult to buy the patent of the Technigaz system, as long as it costs money. "But the technical route of the cargo tank system is closely related to the structure, power and safety design of the entire ship. The Koreans came into contact with the Technigaz system several years before us, and now they have obtained many patents in these fields. If we change now If you pursue the technical route, you will definitely be restricted here..." Since everything was said to this extent, the disciple naturally understood it GTT Company will sell the cargo tank patent to Hudong Shipyard. This is because we are at different positions in the industrial chain and work together to make money. However, Samsung Shipbuilding and Hudong Shipbuilding are in the same ecological niche. Not to mention life and death, at least they are in a competitive relationship. It is simply impossible to license your key patents to your major competitors. Hence, the path of the Technigaz system is basically impossible for China, which has not taken the lead. "Then... we can only count on Torch Group to cooperate with us?" This can only be the case in a short period of time. To be fair, we have been accustomed to being a technology chaser in the past. In terms of core technology research and development, our level is indeed not as good as others..." "But...what if there is nothing good that the Torch can do? After all, they seem to have never been exposed to shipbuilding before..." "Well... that''s what I said, but I heard from my colleagues at the Hangzhou Tooth Factory that Mr. Chang had never been exposed to the machinery manufacturing industry before, but his first move was to take charge of Jiang Zhong''s 70,000-ton forging press. It seems that there is little progress. It went very smoothly ?On the other side, after Chang Haonan sent Cai Honggui out, he picked up the phone and contacted Liu Hongbo. Professor Liu, do we still have any free manpower in our Numerical Computing Business Department? I have a shipbuilding business cooperation that we have not had contact with in the past. I need a few people to understand the situation..." He got straight to the point. ??This question was asked directly to the other party. After a long period of silence, Liu Hongbo''s bitter voice came from the other end of the phone: My junior leader, the orders for the Numerical Computing Business Department have been scheduled until March next year. We cant wait for one person to work as three people. How can we still have free manpower? And since it is a business that I have not been exposed to before, it should be handed over to the R&D department first. In principle, our business department only deals with the application level..." ifier ?Chang Haonan thought about it carefully and felt that it seemed reasonable. He did let Liu Hongbo be in charge of the helicopter design business before, but that relied on Professor Liu''s personal ability. However, Torch Groups main business is program update and maintenance after all. The so-called R&D department is actually the original National Key Laboratory of Numerical Simulation and Data Analysis, which has not even changed its name to this day. At the moment, the official version of the TORC Multiphysics software has just been released. The lights are on in the office over there 24 hours a day. He doesnt even need to make a phone call. He knows that he is probably very busy... Chang Haonan suddenly felt that he might really need a research group of his own... (End of this chapter) Chapter 685 March 25, Operation "Allied Force" Chapter 685, March 25, Operation "Allied Forces" ?After his plan to go to the Science and Technology Commission to learn about the progress of the domestic early warning aircraft was delayed by the unexpected arrival of Cai Honggui, Chang Haonan simply stopped worrying. Just made a phone call to tell Ding Gaoheng that the goods had arrived in Romania, and then continued to deal with the matters at hand. Mainly negotiating with Eurocopter Group, Fiat Ferrari and several research institutes in Russia for the export of Dawn 2000T. After all, for China, selling supercomputer abroad is still the first time for a big girl to get on the sedan chair. In the past, when buying supercomputer, the other party''s contract was full of various unequal terms, which really had no reference value. So everything has to be explored from scratch. As for the Hudong Shipyard... At first, there is no rush yet. The shipbuilding industry is basically considered on a ten-year cycle. Even if there is an end, it will be shortened by 50% to five years at most. After all, no matter how strong the technical research and development level is, the ship must be built slowly starting from laying the keel. Xiao Chang? Ding Gaoheng raised his head and was startled when he saw Chang Haonan, and immediately stopped the pen in his hand: Why are you free to come to my place so early today? But it has only been less than two years since he compiled that textbook. ?Although in the past two or three years, Chang Haonan has almost single-handedly made this direction a popular postgraduate study. Others, even if they have a master''s degree, they have to wait another year, and for a doctorate, it takes at least three years. Forget it, let alone students, Chang Haonan, as the editor of this book, will officially graduate in half a year. Numerical computing is still an emerging discipline after all. Even if it is Beijing Hang University, which first launched this course, the first batch of students to take this course... As for other universities, even the fastest-moving ones, are still one year behind Beijing Airlines. There is no point in being anxious. ??At present, most of the people with relatively high level in this direction have done projects with Chang Haonan. Currently, they are basically distributed in the two major systems of the aviation industry and the weapons industry. It is difficult for him to poach from Ding Gaoheng. ?Chang Haonan specifically canceled all his schedule for today and arrived at the Science and Technology Commission early in the morning. Calculating this, it seems that the only ones who have the ability to carry this banner in a short period of time are the senior sisters who are about to graduate, and Professor Yan Yongnian, who has followed the backbone of the development of the die forging press... This meeting at the end of March coincides with the upcoming conference, which is a time for continuous improvement. ?No matter who it is, if you want to come to work with him, you will have to wait until the second half of the year. March 25, morning. After living in the same family area as Ding Gaoheng, he quickly learned that because his home was still far away from his work, Ding Gaoheng would live directly in a temporary dormitory next to the office when he was busier. in the room. ??Torch Group is short of people, especially the lack of pioneering talents, which basically cannot be solved in a few months. So, although Chang Haonan arrived a little early, when he walked into the director''s office, Ding Gaoheng was already sitting inside and starting to correct documents. As for the domestic early warning aircraft, he decided to wait for a while. Under normal circumstances, if outsiders want to see the director of the Tangtang Science and Technology Committee, they must make an appointment. But Chang Haonan can hardly be called an outsider now. At first, the doorman had to register visitors specifically. Later, he probably got instructions from Ding Gaoheng himself. Anyway, he can now directly enter and exit by swiping his face. ?So Ding Gaoheng didnt know that Chang Haonan would come over before. There is nothing going on at the group today. I happened to hear that you and the big boss went to Nanzheng for an inspection a while ago. I guess you went to Air Police 200, so I took advantage of today to ask the boss about his attitude..." The latter said as he put a thermos bucket on the desk: Aunt Nie asked me to bring her here along the way. "Hahaha" When Ding Gaoheng heard Chang Haonans intention, he burst into hearty laughter: I was still thinking a few days ago that you should have heard the news a long time ago, why havent you come to see me, and you didnt mention it when I called you last time, but it turned out that you came today... Chang Haonanxin said that I had really wanted to know for a long time, but someone interrupted me the first time I wanted to come, so I just left it until today as a reason to come to the Science and Technology Commission. After all, judging from the current situation, his actions do not seem to be able to affect the situation in Europe thousands of kilometers away. The coalition still gave an ultimatum on the 19th, but the other side finally rejected it just like the previous life. ?March 25th, Beijing time, was the day when the "Allied Force" operation began in the original timeline. ?Of course, if things develop exactly as they were originally, the air raid should have started a few hours now. However, in 1999, there was no media as developed as later generations. The coalition forces cut off network signals in the entire Balkans for a period of time. Coupled with the electromagnetic interference caused by the first wave of attacks... In short, there is usually a lag in getting news in the country. time. ??Furthermore, after all, the Science and Technology Commission is not a foreign affairs and military command body, and Ding Gaoheng is not one of the State Committee, so the order of notification must be later. Therefore, Chang Haonans trip was to witness history with the other party. ?Of course, if nothing happens, then he can just pretend that he is really here to talk about domestic early warning aircraft... ?However, this idea can obviously only be buried in the heart, and another set of words must be used on the lips: I really wanted to come here before, but I just happened to catch up with the release of the official version of TORCH Multiphysics. Im so busy these days that I cant leave. As soon as I had free time today, I rushed here early in the morning... When a senior leader inspects something, the on-the-spot statement is usually just a formality, especially if it involves a major decision, and it is even less likely to make a hasty decision, so strictly speaking, nothing has been settled on this matter yet. Ding Gaoheng said as he tightened the cap of the pen and leaned his upper body back on the back of the chair: However, the chief himself also knows some technology. He asked very detailed questions on the early warning aircraft. If I had to look at it, I should be quite satisfied with it overall. "on the whole?" Chang Haonan asked with a raised eyebrow. Obviously, this statement means that the chief is still dissatisfied. Well... Mainly because I am not satisfied with the range and speed of that aircraft. After all, the foundation of the Y-8 Category III platform is really not good, even if the 182 Factory improves it, there is nothing that can be done. Chang Haonan has already had two meals at Ding Gaoheng''s house. Naturally, the latter did not regard him as an outsider and started eating breakfast in front of him: But dont worry, I have revealed what you told me before, the plan to use the C909 passenger aircraft as a platform to transform into a large early warning aircraft. Although this matter hasnt started yet, after all, radars and airplanes are already visible and tangible things, so they cant be regarded as invisible What about the ring project? ?What Chang Haonan is most concerned about is the attitude of his superiors towards the ring project. It is speculated that the actions of the Kingdom of David should be similar to those in the previous life. It is nothing more than resisting and welcoming, and using sunk costs to hang here. To put it bluntly, it is nothing more than some kind of enhanced version of PUA. But this kind of thing belongs to bystanders or even latecomers. If you are not mentally prepared in advance and you dont have many chips, it is still very easy to fall for the bait. Fortunately, we already have an early warning aircraft model that is about to make its first flight in this world, so it does not mean that we have no initiative at all. Originally, the superiors were still a little hesitant. Ding Gaoheng stopped his chopsticks, raised his head and replied: "But a few days ago, the Patriotic side started to act like a monster again. Not only did they refuse to install a radar dome for the first flight, they even sent guards to guard the Il-76 24 hours a day to prevent our technical personnel from getting close. Why worry about technology leakage..." "Ah" Chang Haonan almost laughed when he heard this: Now they are doing us a big favor... Ding Gaoheng also shook his head helplessly: Who says its not the case... When I reported this matter, the chief didnt say anything, but I guess... a decision will be made after this meeting. I just dont know if the 350 million yuan paid in advance can be successfully recovered... It shouldnt be a big problem to get the principal back. Chang Haonan continued casually: "Liquidated damages... This may depend on the situation. But in any case, it can make the superiors focus back on the domestic early warning aircraft instead of just using it as a backup project. This is much more important than the 350 million yuan." "yes" Ding Gaoheng nodded. Just as he was about to say something more, the red phone on the corner of the table rang. Chang Haonan''s face turned cold. Hello, Im Ding Gaoheng. Chang Haonan, who was sitting on the sofa next to him, naturally couldn''t hear the content on the phone, but from the tense expression on the other party''s face, it was not difficult to guess what was on the phone. After a while, Ding Gaohengs chest moved slightly, obviously taking a deep breath: "Okay, I know." After saying that, he hung up the phone. Director Ding, this is... ?Chang Haonan naturally had to pretend. For Ding Gaoheng, the news on the phone was unexpected and reasonable. After all, they had started preparing for this a long time ago and must have expected that such a day would come. But when the news actually came, shock was inevitable. After calming down a little, Ding Gaoheng raised his head again and looked at Chang Haonan: The coalition launched a combat operation code-named Allied Force early this morning. (End of this chapter) Chapter 686 fallen nighthawk Chapter 686 The Falling Nighthawk In the next few days, Chang Haonan paid close attention to the situation of the Allied operations. On the one hand, it was to make up for his regret of not being able to follow this event from the beginning in his previous life, and on the other hand, it was to determine whether several landmark events in his impression would still happen. ?It''s a pity that the Torch Group is not a real intelligence agency after all. In addition, Chang Haonan only goes to the Science and Technology Commission once every morning at most and cannot stay there 24 hours a day. Therefore, the main means of obtaining information are newspapers and TV news. ?But this is almost enough for him who roughly knows the ins and outs... Three days later, March 28. ?Chang Haonan came to the conference room on the top floor of the Science and Technology Commission as usual. Although the business of the Science and Technology Commission is not directly related to this incident, as the department in charge of the development of the defense industry, it is always reasonable to track front-line military equipment information, and the United States is obviously the country with the highest level of military equipment in the world today. , so Ding Gaoheng used this excuse to organize a routine briefing every morning. ?Of course, the content of the briefing can only be obtained from the General Staff Intelligence Bureau, so the timeliness will be delayed by several hours. Nearly 72 hours have passed since the Allied operation began on March 25. Is the news...reliable? And what Chang Haonan and the others saw was a completely unedited version... The Americans lost an F117? The latter replied. ?But today, as soon as Chang Haonan entered the door, he felt that it was different from before. ?In addition, because it was an undeclared war, media, reporters and even official agencies in many countries did not evacuate, resulting in many scenes being presented to the world in an almost "live broadcast" manner. ?Although the distance was not close, one could still tell through the firelight that it was a plane with a slightly strange shape. ?It is one thing to be able to resist for three days, it is another thing to be able to resist for thirty days. Moreover, if the situation continues to develop, it may not be able to be stopped even for thirty days... In the night sky, as an explosion of bright light flashed, something burning slowly began to fall. Chang Haonan already had a premonition when he saw this posture, but he still quickly opened the folder. Although air strikes are ineffective against ground units other than fixed targets such as airport warehouses due to sufficient camouflage and dispersion, overall, the situation is still undoubtedly developing towards a one-sided situation. I have been paying attention to the news these days, and I am waiting for this time. In short, these days, the atmosphere at the briefings of the Committee of Science and Industry is still quite heavy. Before he could sit down, Ding Gaoheng handed over a document. You will know when you look back, our frontline personnel captured quite strong image evidence. ?Chang Haonan lowered his head again and turned the report to the back. As expected, he saw several slightly blurry but continuous pictures. ?This incident was a thunderous one in the previous life, but Chang Haonan was actually not sure exactly what day it happened. Out of the professionalism of an actor, he deliberately looked dumbfounded and looked at Ding Gaoheng next to him. Xiao Chang, lets take a look at the contents of this report. "I go" ?His surprise just now was just for show, but now it has become real. It seems that there was no such set of photos on the original timeline... Obviously, although the general direction of the event has remained the same, some details have changed. What Chang Haonan knows better is that after a while, maybe the whole world will completely enter another story line because of him... Xiao Chang shouldnt be so surprised, right? Huai Guomo, who was sitting on the sofa next to him, turned his head and asked with a smile: After all, we have helped in this matter. According to previous tests in China, the multi-point passive detection radars ability to detect low RCS targets is indeed much better than ordinary passive radars..." ?Chang Haonan did not answer immediately, but lowered his head and thought for a while, and then answered with some hesitation: "This result... I think it has little to do with the technology we sent over." "Um?" A few doubtful looks were cast at him. After all, in the eyes of several other people, this can even be directly regarded as Chang Haonan''s achievement. ?The latter organized the language slightly, and then explained: Its only been a little over a week since Lao Wu delivered the goods to the customer. "When the 407 radar was modified by the 14th Institute of Electrical Engineering, it took nearly half a month with sufficient manpower and three shifts. The customer was the first to come into contact with this kind of thing, the P18 radar. The complexity is much higher than that of the 407 radar. In addition, we are directly in the hands of the troops over there. The professionalism of the technical officers is definitely not as good as the experts of the Electronic Technology Group. There is absolutely no reason that it will take less than 10 days. The modification and debugging of the two radars have been completed. Hearing what Chang Haonan said, everyone felt that it made sense. But in this way, it seems that the joy that was mentioned just now has disappeared again... In that case, does that side already have the ability to deal with stealth aircraft? Ding Gaohengs expression is a little complicated: If thats the case, wouldnt it be wrong for us to go through this whole process... Thats not the case. Chang Haonan looked at the anxious seniors around him and quickly shook his head: Theoretically, general stealth aircraft perform RCS optimization for centimeter-wave radars. VHF-band radars such as the P18 have the possibility of roughly detecting the target position. "In addition, the first phase of the air strike is coming to an end, and it is inevitable that the opponent will underestimate the enemy. I read the briefing content of the past two days and specifically wrote that the intensity of the opponent''s accompanying electronic interference is much lower than that of the first day. Taken together, the enemy is being underestimated. It is entirely possible for the air defense unit to miss it. Looking at these photos, it is obvious that it was shot down by an anti-aircraft missile..." However, after learning this lesson, it may be more difficult to use similar simple methods to achieve results, especially against stealth aircraft. Hearing what Chang Haonan said, the mood of the other people finally recovered a little. "In other words, our preparations may still be used later?" Its natural. Chang Haonan now feels more confident about this thing that never happened in his previous life: Its impossible for the opponent to stop fighting because of this setback. Wouldnt that be a big joke... They will only become more cautious. "I estimate that at the speed of our customers, it may take about half a month to complete the two radars. Let''s see by then..." (End of this chapter) Chapter 687 The euro collapsed Chapter 687 The Euro collapsed ?Nowadays, Chang Haonan''s statement, even if it is only verbal, is quite convincing to the Science and Technology Commission. So, after he said "wait half a month and see again", the other people basically accepted this statement naturally. However, in any case, Chang Haonan and Ding Gaoheng initially made the decision to "secretly help behind the scenes". Their original intention was to take advantage of the opportunity to kill the American spirit. It would be best if they could achieve some more iconic results and let the whole world know. The world steps out a little from each other''s shadow. This F117, no matter how it was damaged in the battle, must be of great use for this purpose. So, although the actual situation may be somewhat different from the original idea, the interest of several people in the conference room quickly returned to its original state. ?Perhaps for this reason, todays briefing did not end hastily, but entered the next stage. Dear leaders, since the beginning of Operation Allied Force, there is some information other than military intelligence that deserves more attention. While speaking, the new secretary who replaced Lan Xinzhi put a new piece of document paper on the projector, and a chart was instantly displayed on the big screen. The exchange rate of the euro against the U.S. dollar has fallen from 1:1.1800 to 1:1.0640 in the past three days, a drop of as much as 9.83%, and the decline has not yet stopped. Ding Gaoheng waved his hand to signal the other party to calm down: Ding Gaoheng sighed: "Furthermore, since last year, the contracts we signed with several European countries have stated that transactions can be conducted through the euro. But now that the exchange rate of the euro is fluctuating like this, it is not good news for us to build euro foreign exchange reserves. As one of Europe''s major trading partners, China will obviously also be indirectly affected. The specific policy for the euro has not been decided yet. I will be notified of the second emergency response meeting the day after tomorrow. ? Even a 10% increase in three days may not be a good thing, let alone a decrease now... Chang Haonan said in a helpless tone: "Recently, it is the peak period for the release of the official version of TORCH Multiphysics. Many of the orders signed before were paid in euros. There are also two Sugon 2000T and numerical calculation business sold, which may cost tens of millions. Payments in euros have now dropped by 10%, and will obviously continue to fall, which is also a big blow to our business..." The Peoples Bank of Chinas Foreign Exchange Administration estimates that if the EU cannot inject confidence into the market through some strong means, the euro may further fall below 1:1 against the US dollar in half a month. Huai Guomo, who has been responsible for foreign project cooperation for a long time, knows relatively well about these things: The current U.S. dollar is too strong in the international market. Although the Japanese yen also occupies a certain share of settlement, it cannot be regarded as a completely independent currency. The ruble has almost become waste paper, and the RMB has no voice at all. It seems that Europeans will inevitably lose a piece of meat from this round of events The other people were not surprised by the ability of the Torch Group to attract money. ??If we only look at it from the perspective of a single buyer and seller, then the depreciation of the euro will be beneficial to Chinas imports but not conducive to Chinas exports. So if we want to break the monopoly of the US dollar, we can only support the euro to fight against them for the time being. Looking at the shocking decline rate of the curve on the table, even those in the conference room who are not well-versed in finance can realize that the EU is likely to suffer a serious blow this time. Then we still have to bite the bullet and continue to use it? ??However, trade between countries, or even just the trade between enterprises affiliated to the Science and Technology Commission and Europe, is extremely complicated and cannot be summarized clearly in a simple sentence or two. In fact, at present, China''s trade with Europe is generally in a relatively balanced state, but when it comes to the business of the Commission of Science, Technology and Industry for National Defense, exports are still far greater than imports. Nowadays, the plummeting euro will naturally cause huge losses. But from our standpoint, we still have to let the euro hold on, even if there is some damage to our interests in the short term. But in general, for a new currency like the euro, and a new currency with symbolic significance for European integration, it is best for the exchange rate to remain relatively stable. ?Lu Xiujun, Director of the Department of International Cooperation, frowned and felt a little headache. After all, it is a monopoly business to a certain extent. We at Torch Group also encountered this problem I was not senior enough to go to the first meeting on the 25th, but presumably, the main discussion at that meeting should still be security issues. After all, no one thought that the euro would collapse so quickly..." When Lu Xiujun saw this, he could only smile bitterly and could not say anything else. In fact, it should be expected that the euro will be negatively affected... Huai Guomos tone was slightly filled with resentment: Although the Balkans do not use the euro, it is called the European powder keg after all. Once chaos breaks out, it will inevitably affect the whole of Europe, and the euro happens to be the whole of Europe. The currency spawned by the globalization issue has just been issued, and even in EU countries it is still circulating under a dual-track system of local currency and euro. This is the most vulnerable time..." Im afraid this is something that the superiors cant figure out. Ding Gaoheng interrupted Huai Guomo: Logically speaking, there is no reason why those cunning old foxes in Europe cant think of the problems that uneconomical people like you and me can think of. Since the Allied Operation was initiated with their support, according to our normal thinking, we must have had a response plan in advance... Who would have thought that I was really unprepared... Isnt this deserved..." Actually, this is not surprising ?Listening to Ding Gaoheng''s complaints, Chang Haonan suddenly remembered a joke, so he suppressed a smile and continued: If you pick out a single European country, they may all be old foxes for hundreds of years, but if you combine them into the European Union, they may not be able to perform at their respective levels. Just like I heard a saying, its a typical EU organization. It has a British director, a French director, and an Italian section chief. The typical EU agency official combines Italian organizational skills, German flexibility, French humility, Belgian imagination, Dutch generosity and British sincerity O ?When Chang Haonan first spoke, everyone thought he was talking seriously. It wasnt until he got to the part about the flexibility of the Germans and the humility of the French that he finally realized that this was a bad joke. By the end, several of them couldnt even hold back their laughter. In short, it is quite reasonable for such an institution to make some brain-dead decisions at critical moments... Chang Haonan concluded: And this should be an opportunity for us. ??Everyone who had just laughed for a while also calmed down when they heard this, but they didn''t answer. They just looked at Chang Haonan and motioned for him to continue. Especially Ding Gaoheng. Although the business of the Science and Technology Commission does not directly involve finance, almost all bulk commodities and orders in China''s import and export to Europe are related to it, especially the equipment industry and aviation industry, which have broken the ice in relations with Europe in recent years. Top priority. So when he goes to the meeting the day after tomorrow, he still has some say in trade. Of course, on the other hand, as the head of the defense industry, he really has nothing to say on other topics... It would be better to listen to what Chang Haonan has to say. Although the latter''s ideas are often not mature and require further polishing and processing by Ding Gaoheng in details before he can continue to report them, in terms of openness of ideas, no one can match him... There is no need for Chang Haonan to be pretentious now in the Science and Technology Committee, and he immediately said: As Director Huai said just now, the euro must be saved. Otherwise, letting the U.S. dollar dominate will not be a good thing for us to join the WTO or for our trade after joining the WTO. Director Dante said that the European Union was responsible for its own consequences this time... In fact, he is right. The main force in the Allied operations is indeed the Americans. However, the situation has deteriorated to this point, and the driving force behind it is also the Europeans themselves. Now that the euro needs to save itself, there is only one way out, which is to find a strong economy to support the credit of the euro. "This economy must first have strong production capacity, be able to provide industrial supplies to the EU in a long-term and stable manner, and be able to undertake European capital exports; secondly, it must have the motivation to strategically support the growth of the euro, and not be worried, or at least not afraid of standing still. On the opposite side of the United States; in the end, it must be large enough and relatively monolithic internally. Only in this way can it withstand the pressure from the east coast of the Pacific and help the euro compete with the US dollar..." Everyone is a sensible person, so what we have said is basically equivalent to making it clear. An economy that satisfies the above three conditions at the same time Huaxia said it would be better to report my ID number directly. "so." ?Chang Haonan looked around half a week in front of him: Whether it is from the perspective of teaching them a lesson, or from the perspective of adding icing on the cake rather than providing help in the snow, there is no need for us to act in such a hurry..." (End of this chapter) Chapter 688 Fuck you, the car hit the wall, did you know you turned a corner? Its too late! Chapter 688: Laughing to death, the car hit the wall, did you know you turned a corner? It''s too late! Hearing Chang Haonans thoughts, Ding Gaoheng did not express his position directly, but just nodded: Monetary and financial policies, implementation and announcements must be handled by specialized agencies. I will mention it specifically when I go to the emergency response meeting the day after tomorrow. Actually, the current situation makes Chang Haonan feel a little numb. In the previous life, Operation Allied also naturally caused the euro''s exchange rate to fall. But the decline is still a decline, and it does not mean that it has fallen like this. ??The reasons Huai Guomo just mentioned are all correct, but it is impossible to achieve such outrageous effects simply by combining the explosion of European powder keg and the refugee crisis - ?? Even if it is said that everything happened, it was the Balkans that had the trouble, not the Brittany Peninsula. 10% for three days. ??Those who dont know better think that the Germans have pulled three more armies to penetrate the Benelux and go straight to Paris. So, in addition to these obvious reasons, there must be invisible hands behind the scenes controlling this matter. I understand, its just like the method used by the Kingdom of David on us in the Ring Project, right? Ding Gaoheng opened his notebook to take notes and said: ?This peculiar description made several other people laugh. As expected of an academician, his ability to draw inferences from one case to another is very high. In this life, under the instigation of Chang Haonan, the performance of the EU in recent years has been much faster than in the original timeline, and the Americans want to beat Europe, especially to protect the absolute dominance of the US dollar in the world. , the intensity used must also be much higher. Xiao Chang, what do you mean... ??If someone really votes, then the clown will be on his side... Thinking of this, he quickly said: Director Ding, Im worried that if the monetary management department directly makes a statement that is not conducive to, or even just does not support, the euro, it will be the last barbell that breaks the camels back..." After all, judging from the experience of later generations, it is difficult for these Europeans to be called hard-core at their core. I cant tell, Xiao Chang, do you still have the talent in this area? Just tell me what you think. For such a big matter, the superiors must decide in the end... So, he said that there is no need to rush to take action, but the degree still needs to be grasped by professionals. As to who is the culprit... Thats right. ?Theoretically, the best thing would be to act as the savior just before Europe can no longer hold on. Chang Haonan was still thinking about how to describe it, but Ding Gaoheng directly made it clear: Laughing to death, theres no need to guess. "After seeking permission from our superiors, we, those of us who have business dealings with Europe on the front line, will first try it out. For example, we can set up some obstacles to the euros during the payment process, but we don''t directly reject the euros, and give the other side a kind of aloofness. Feel" But the closer you get to the limit, the higher the risk. ?Chang Haonan nodded decisively. Before I felt that by Ding Gaoheng, Chang Haonan also discovered that the smoothness of this kind of problem was a lot stronger than just being reborn. In fact, if we really talk about financial knowledge, he has more or less understood it after experiencing the information explosion era more than 20 years ago. He has not studied it specifically after his rebirth. Even if he has made progress due to a lot of practice, he should still Has not changed much. ??If I have to say it, it is probably because of the project work during this period that I have raised my system management level to LV3. Of the three current projects, only the engineering experience is still stuck at LV2. Depending on the progress, when the die forging press or turbofan 10 project is completed, the entire system level can be upgraded to 3. At that time, you should be able to consider sprinting towards higher technologies. The next few days passed quickly. Operation Allied Forces entered its second phase starting on March 29. The attackers gradually realized that simple air strikes pose little threat to well-concealed and freely maneuverable military targets, but they did not want to send ground troops to grind meat, so they gradually shifted the focus of their attacks to the infrastructure necessary to maintain the city''s operations. . ?Chang Haonan was really anxious about this. After all, as someone who had experienced it, he knew that this was the real killing move. But on the other hand, everything that can be done has indeed been done, and the rest can only be done according to fate. Fortunately, the plan submitted by Ding Gaoheng was successfully passed. Although it has obviously been revised a few times, the core idea is still similar to Chang Haonan''s original idea. ?So, as soon as he received the news, he asked Song Jingming to close the account details page of the official website [Euro Payment]. ?Of course the connection on the surface is still there, but I just cant click on it. Those who placed orders over the phone, even if they said they were paying in euros, they would use various reasons to evade it. As for those who have already signed a contract, there is nothing you can do if you have signed a euro contract before, but most of them still choose one of euro/dollar or euro/local currency. In this case, they also start negotiating with the other party and choose the other one. How to pay For a while, Chang Haonan regretted not adding enough places to the office and legal department... While China is busy in full swing, almost no one in Europe is paying attention to military matters. Bellaymont House, Brussels. Three middle-aged men in suits but with worried faces were sitting around a round table in a confidential conference room. Boy, this morning, the exchange rate of the euro against the US dollar has reached 1:1.0290. ?The first person to speak was German Finance Minister Wolfgang Sch?uble: After we have invested almost all policy tools and more than one-fifth of our reserves, although the rate of exchange rate decline has slowed down, if it continues like this, it may..." He hesitated for a moment when he said this, and glanced at the two colleagues in front of him: It may be necessary to use precious metal reserves... Theoretically, the most immediate way to protect the exchange rate is to directly restrict foreign exchange transactions and then force official settlement of foreign exchange. ??However, the EU was born to lower trade barriers from the womb. Now if you impose high-intensity foreign exchange controls, it will really become a self-defeating alliance... ?? French Finance Minister Dominique Strauss-Kahn had a lot of resentment on his face from the beginning. At this time, he directly tapped the table with his fingers, making two crisp sounds: "I have long said that the Allied Forces Operation was a trap dug by the Americans and would do no good to us. At that time, everyone had their own agenda and did not follow my stance. As a result, less than a hundred days after the euro was issued, the exchange rate fell. Almost 15%... Now they know they are anxious? " Kahn has been a loyal supporter of a single European currency for many years. When the euro was issued, he said a classic saying in the face of concerns and doubts within the euro area countries that would lead to the loss of monetary rights. Nothing has been lost. After the war, the monetary power of Europe has always been in the hands of the United States. After the advent of the euro, we will work with our European partners to regain monetary sovereignty. Such a main promoter of the issuance of the euro is naturally quite dissatisfied with the current situation. Its useless to say this now. ?? Italian Finance Minister Vincenzo Vesco, who was sitting next to him, patted Kahn on the shoulder and interrupted his complaint: The focus now is to think about how to restore the situation, and the action must be fast enough. "We lacked adequate preparations before and did not have enough ammunition in our hands. If the situation continues as it is now, it can almost be said to be a slow death." Thats right, this was a closed-door meeting held by the finance ministers of Germany, France and Italy. The rule of holding small meetings for big things also applies abroad. ?Everyone with a discerning eye knows that with the EUs rules, which require the consent of all member states, no decision can be made at a critical moment like now. So if something really big happens, the heads of the core countries should get together and have a meeting to get it done. Most of the time, this core country only includes Germany and France. ?But today, perhaps it is to make up an odd number, or perhaps because Italy has a relatively close relationship with a certain big country in the East. In short, Vesco was invited here. And what he meant is very clear This is no longer an ordinary exchange rate slide. It is not an exaggeration to say that it exploded on the spot and spiraled into the sky. In other words, several old European countries have strong foundations and long health bars, and the country is still implementing a dual currency system, so they can still withstand it. ??If placed in emerging markets like Southeast Asia, this kind of decline is basically equivalent to a precursor to economic collapse. Furthermore, even the older generation of powers like them, oldmoney, cannot resist in the long run. ?Must hit hard! (End of this chapter) Chapter 689 One F117 is not enough Chapter 689 One F117 is not enough... Of course the other two finance ministers also understand the truth. But the problem is, how to deliver this punch. Save the situation, to put it simply. As a Frenchman, Dominique Kahn doesnt have any objections to the establishment of power in the Balkans, but he has strong objections to the United States taking the initiative and making the situation completely out of control: What capital wants is nothing more than low risks and high returns. As long as the Allied Forces operation continues, the risks in Europe as a whole cannot be much lower. In addition, the refugee problem may last for several years or even longer in the future, and The responsibility for post-war reconstruction is that the Balkan Peninsula after the chaos is now equivalent to a tumor, a tumor arranged by the Americans that will continue to erode Europe''s economic prospects..." In the ten years since the merger of Germany and Germany, Europe has indeed extracted a lot of cheap labor and even human flesh and consumables from Eastern Europe, but these were all planned and limited introductions of foreign populations. The influx of refugees is a completely different concept. It seems that we should be grateful for the losses suffered by the coalition forces in the past few days... ??Vescos tone was a little weird, but as an Italian, he didnt have any psychological burden on such a wavering statement: "However, a few aircraft, even stealth aircraft like the F117, is not a big deal to the Americans. The current situation is that the United States only needs to pay a little money for ammunition to bring global hot money back to North America from Europe. I said this morning I paid attention before I came here. In the past few days from the end of March to now, the US stock index has risen by nearly 20%..." ?One of the currencies has plummeted and is unable to take care of itself, while the other seems to be independent but is essentially a lackey. This idea can only be said to lead to the same goal through different paths. Schaeuble felt that the attitudes of the other two colleagues seemed a bit negative, but intellectually he knew they were right. Now, the most direct way is to find an event that is enough to support the worlds confidence in the euro. "As long as the ground units are not moved, it is basically unrealistic for the Americans to stop their troops because of this loss..." There are only so many means in economics. Excluding those that have been used, those that are useless and those that cannot be used, this is the only one left. Excluding the countries involved, the only countries in the world that can be called big countries today are Mao, Japan, and China. So after the three people discussed it, they reached a conclusion similar to that of Chang Haonan before. Sch?uble and Kahn almost looked at Vesco at the same time: Your business ties between Italy and China are relatively close. What do you think of their attitude? The latter leaned back on his chair with a slumped expression: "not so good." For example find a country to support us There is no choice. ?Visco almost rolled his eyes to the sky: Those who do business with us are their state-owned enterprises, so naturally we have to take the official attitude into consideration This position tendency means Although their official agencies have not yet expressed their position, several companies that have cooperated with us in depth have hinted that considering the current stance, they are hesitant to support the euro. After thinking for a while, he spoke again: You dont think that China will support us in launching an allied operation... Schaeuil Brown showed his "German flexibility" at this time and asked directly. "well" "so." really. Furthermore, the current situation is clearly that the United States wants to take this opportunity to target the euro and give us a platform, but it must also consider the consequences of doing so. Vicos continued: "In short, even if they have this idea, I''m afraid they won''t be able to agree so quickly." Kahn put a hand on his chin. Because his palm blocked half of his face, his expression could not be seen clearly: If we were to change the position and consider it from Chinas perspective, it would not be in their interests to allow the dollar to grow... ?Visco shook his head: But for us, every additional day of delay will bring greater losses and pressure. What if we offer some favorable conditions? For example, fully support their accession to the WTO? Are you so sure that Americans will agree? No matter what, at least the situation of the euro can be stabilized first, otherwise if we really have to use gold reserves, it basically means that the euro will be completely destroyed..." After a frank exchange of views, the three finance ministers all looked a little tired.?????What if we think more broadly and think beyond economic means? Schaeuil Brown was holding a cup of coffee and rubbing his swollen forehead with his other hand: "Can we use some means to force the Americans to stop? For example, we... uh... I mean, you withdraw your troops first or something like that?" ?Although Germany is now unified, it has a special status and has great influence in the EU, but it actually has little say in NATO. On the contrary, France and Italy still have a little weight. "How can it be" ??Vesco looked at the German allies as if they were mentally retarded: We are the finance minister, not the defense minister "And not even the Minister of Defense, or even the Prime Minister or the President can make such a decision. Those generals have probably been bribed by the Americans a long time ago. Besides, military affairs are not child''s play. They have issued ultimatums no matter what. , the reason why we should fight among ourselves first in the middle of the fight..." The three fell into silence again There is a problem involved here. NATO, and the EU. ?Although there is a relatively high degree of overlap in national composition, they are essentially two completely different organizations. Even within countries that are members of both, the two systems are relatively independent. ?Hence, there is often a schizophrenic phenomenon in which a country seeks to be independent economically, but has to rely on the United States in terms of national defense. However, everyone with a discerning eye knows that how can military and economics really be completely distinct? ??It''s enough to shout slogans at ordinary times, but when it comes to taking action like now, criticism with weapons is more effective after all. From this perspective, de Gaulles idea is undoubtedly correct. There is no meaning without national defense independence and economic independence. However, at this point in time in 1999, even if the three finance ministers knew this truth, they would not be able to solve the problem at its root. The silence lasted for quite some time. So much so that the atmosphere in the conference room became a little anxious. "actually" ?The Italian puts the empty coffee cup and spoon on the table in front of him: If you have to say it, its not impossible ??The other two people, who were already at their wits end, naturally became energetic immediately after hearing this. "If...I mean if there is a huge change in the direction of public opinion in several of our countries on this matter, then it is not impossible to call a truce..." You mean using the media? Schaeuil Browns train of thought has obviously not changed yet. Merely using the media may not work. Americans are much better at this than we are...and the public will not cause any big waves just because of a few articles or speeches. ?Visco shook his head: There must be some landmark events. Let the Russians go to **** and threaten us with nuclear war? ??The French are quite bold in thinking. If its fifteen years in the morning...maybe itll be okay. Sch?ubren shrugged, obviously not thinking it was feasible. ?The meeting was almost deadlocked. In any case, Wolfes method is the only one currently feasible. After all, Kahn was still reluctant to let the euro, which he had devoted half his life to, decline after a hundred days of its birth: Contact the Chinese people and ask them about their prices. The market is still waiting to see if all, or at least most, of the trade between China and the EU can be settled in euros, then confidence will at least not deteriorate further. In any case, I dont think the EUR/USD exchange rate can fall below 1 (End of this chapter) Chapter 690 It shows the value of united front Chapter 690 shows the value of united front In fact, the finance ministers of Germany, France and Italy are not all loyal supporters of the euro. But no matter what their attitudes were in the past, now they are definitely a community of interests with highly consistent goals. Since the euro has been issued and the timetable for replacing the national currencies of the euro zone countries has been clearly announced, there is no way back except the possibility of insisting on pushing forward the unified currency. ??Moreover, three months ago, they personally went to ring the bell at the launch ceremony of the euro. Its only been three months! If something really happens, others will not care what your "original" attitude was, nor will they care about such a big matter. It has lasted for so many years. There must be more than one promoter behind it. I can only think of you, an old boy, who did this in the first place. ??The blame will definitely fall on the three of them in the end. ?Of course, this is fair. After all, if in another timeline, the euro took off directly after its issuance, countered the US dollar and directly became the world''s most mainstream currency and led Europe to revive... ?The credit will also fall on the three of them. ??It is possible to take advantage of the situation and directly form a party to participate in the election, become a powerful figure in the political arena and leave a name in history. Its just that they underestimated the determination of the Americans in this matter and overestimated the independence of the Europeans. Fortunately at this time, its not too late Contacting Chinese people is indeed a top priority. Schaeuble nodded in agreement, but then changed the subject: "However, now their central bank and the Ministry of Finance have not expressed their stance. Whether the reason for this is that they really have not reached a unified opinion, or they deliberately want to delay time and observe the subsequent development of the situation, it is impossible because we have spoken out. Just ask and give a clear answer honestly. Based on my experience in dealing with the Chinese people over the years, in this case, if we ask directly, the opponent will probably start kicking the ball directly, and at most they will say some innocuous words to deal with us. You have to give it a try, you cant just sit back and wait for death. ?Kahn was already a little unable to sit still at this time: "Moreover, they have not made an official statement, but at the same time they have put pressure on us on a commercial level. This posture shows that they are also afraid that the euro will really collapse. Now they just want to occupy a favorable situation as much as possible before the negotiations. As long as If we test it a few more times, we will always get a response. ?According to his thinking, although China has great appeal and influence in emerging markets, in terms of hard power, it is only a country with the seventh largest GDP, and is not even as good as Italy, the most powerful among the three countries here. ?Even if a lion opens its mouth wide, it does not have such a big mouth. Hence, the cost-effectiveness of letting the other party express their opinion will never be too low. But Sch?uble obviously didnt think so: The combined economic size of our three countries is six times that of the Chinese. If we do what you say, our posture will be too low..." ??The German economy is now the third largest in the world, and riding on the east wind of the reunification of the two Germanys, the Germans are still at a stage of relatively inflated self-confidence. ?Although rationally I can think of "asking Huaxia for help", emotionally I don''t want to appear too demanding. Europeans have this virtue. The body is upright in speech. Its better than this. ??The Italians have indeed cooperated with China a lot in recent years, so Vesco''s mind is more flexible than his two colleagues: Since the Chinese are exerting pressure on us through enterprises, we can also use the same method to test their conditions in turn. Anyway, most of the companies we have contact with are state-owned enterprises of the other party. Even if their statements cannot be directly equivalent to the official ones, they can at least represent their official intentions to some extent. Is the companysurely reliable? Schaeuble was still a little hesitant, but his attitude was obviously relaxed. As long as both parties have this intention, even a table tennis player getting into the wrong car can be an opportunity to break the ice. Why cant companies do the same? Visco still has some research on China. This idea is relatively compromise, which not only satisfies Kahn''s urgent need to solve the problem, but also makes Sch?uble''s side justified in terms of face. So the three people quickly reached a consensus. In addition, this matter must be kept confidential, I mean, from the Americans. ?Before leaving the meeting room, Visco emphasized to the other two people: There is a saying in China, which is to build the plank road openly and build the warehouse secretly. "It''s best to secretly find some middle-level companies who already have good personal relationships with China to test. Don''t leave any trace on the outside. Just say that you are following the delegation to inspect the project, or simply discussing business. In this way, the United States Even if people have good intentions, they will focus on those important people. The other two people dont know much about Chinese culture, but countries around the world actually have classic expressions like this, so its not difficult to understand. Kahn thought for a moment and quickly thought of an opportunity: "If this is the case, I remember that the European Aerospace Defense Group is expected to have a trip to China in May... It seems that a cooperation agreement was signed two years ago, and the location and policy of the factory there have been decided. This time we will go Examine the production capacity there and determine which production capacity and processes need to be moved there. " European Aerospace Defense Group, the parent company of Airbus and Eurocopter. Although it is considered a Dutch company geographically, in essence, the French have the absolute say in it. ?Seeing that the other two were lowering their heads and thinking, Kahn continued: "The scale of such a delegation is large enough, the time spent in China is long enough, and the itinerary is complicated enough. It even has to be divided into three parts and go to three different places at the same time. All it takes is to put a few reliable people into it and Its not difficult to get things done. But if the current trend continues until May, the credibility of the euro may not even be comparable to that of the ruble... At least there is gold in the Russian central bank vaults. ?Visco shrugged and said in a strange tone. In the 1990s, almost all the gold reserves of European countries were placed in the United States. So they just said that if it comes to the time when precious metals must be used to support the value of the euro, it will basically be equivalent to losing everything. "May was the original plan. Now that the situation has changed so much, it is reasonable to go earlier. You don''t have to worry about this. I have personal connections that I can use..." Kahn obviously has a plan in mind: "Furthermore, I can see that China has attached great importance to the aviation manufacturing industry in recent years. We take advantage of this opportunity to, firstly, increase the proportion of industrial transfer as a significant bargaining chip, and secondly, there is a high probability that we can directly see the to the more influential officials there. "After I took office as Finance Minister, I specifically read the memorandum on the entire process of our negotiations with China two years ago. At that time, it was a simple business cooperation between the two parties at the beginning, but halfway through, all important leaders from both sides were involved. It finally evolved into an official agreement between China and the EU. This incident, and the series of actions behind it against the Boeing-McDonnell Douglas merger, are a typical victory for the EU against the United States in the past two years, and have greatly inspired Europeans'' confidence in integrating Europe into a world pole. So the other two people obviously also knew the details. ?Now that Kahn mentioned it, I suddenly felt that the future was much brighter. Okay, I agree. "I agree." Success in the past is always pleasing, so Kahn specifically mentioned the case two years ago. ?Of course, there is also a certain inducement component in this. ?For example, "If we can repeat the operation from two years ago, the three of us can make a comeback." In this case, how about directly adding some people from our financial institutions and central bank to this delegation? If we need to talk, we can be more direct. "No, I''m worried that the people from the central bank are unreliable. If they are sent there too early, they may be exposed..." In short, move faster, waiting for even one more day may cause big trouble... (End of this chapter) Chapter 691 Take risks Chapter 691 Taking risks Facts have proved that at least Europeans in the 1990s were able to show some efficiency when their lives were at stake. Within a few days, the news that the European Aerospace Group was planning to modify the itinerary and visit in advance reached China. ?At this time, Chang Haonan had basically finished his work in the capital and was about to leave for Jiangcheng to ensure the final stage of construction of the heavy-duty die forging press. ??As a result, not long after I asked Zhu Yadan to report the itinerary, I received a call from Ding Gaoheng. Xiao Chang, I just received the notice from above. The European Aerospace Group is going to send a delegation to China in two days to inspect and discuss with us issues related to cooperation in the aviation industry. ?After the call was connected, the other party got straight to the point. Chang Haonan was stunned when he first heard the news, and then remembered that the European Aerospace Group was later Airbus Group. ??If calculated in terms of output value, about 70% of the cooperation with Europe he has facilitated in the past two years is related to this company. ?Including the NSK bearing incident that triggered the collapse of Japanese companies'' reputation last year, they also used the other party''s Eurocopter company. They are also old friends in a sense. Are you planning to go to the aviation industrial park we plan to build in Luzhou? ?Chang Haonan almost blurted out. The location of the industrial park was determined in October 1997, and it has been almost a year and a half now. If we count the progress, various preliminary work such as land planning, policy support and infrastructure are almost completed. After all, it is a project personally supervised by the highest level. In addition, Anhui Province itself is also a relatively well-developed region, so the efficiency is certainly not high. Considering that from the very beginning of the planning of this industrial park, it has been clearly stated that it will provide supporting facilities for the European aviation industry. Now that the foundation has been laid, how to develop it in the future will definitely need to be discussed by both parties. ? It was originally planned that the first phase of the project would only hand over some parts that did not involve the core of the aircraft to Chinese suppliers for production. But in todays context, there is obviously still room for negotiation. Of course I will go to the industrial park, but this time the delegation opposite is very large, and the visit time is also relatively long. Ding Gaoheng on the other end of the phone replied: In addition to Luzhou, the other party has also applied for trips to several other places, such as the Bingcheng Helicopter Group and the newly built aviation weather simulation wind tunnel in Fucheng. "Although these matters have their own leading units, they were basically promoted by you at the beginning, so when negotiating later, we still have to refer to your opinions, especially in the industrial park, where many details still need to be confirmed. Of course this is no problem Chang Haonan has been planning to connect China''s aviation industry with the global aviation industry two years ago, so he almost subconsciously expressed his agreement. ?But only halfway through his words, he suddenly realized that at this very sensitive time point, the Europeans might have the same idea as him - He wants to use the weakness of the euro as a bargaining chip in exchange for a wider range of industrial transfers. The other side also wants to use its advantages in the aviation industry to exchange for China''s support for the euro. It belongs to the **** who looked at the mung bean - his eyes met. As for why we have to go around like this, it is obviously to deceive others. It should be admitted that the Europeans ideas are good. ?However, at the implementation level, there is indeed still room for improvement of 100 million points. Even before Chang Haonan got the news and speculated on the purpose of the EU''s trip, a detailed report with straightforward conclusions had been sent to 1600 Pennsylvania Avenue. Inside the Oval Office. ??An international affairs assistant handed the report to several other people sitting on three rows of sofas on the other side of the office. Everyone, this is information that the intelligence department has just intercepted in the past few days. The Europeans may be almost unable to bear it anymore and are preparing to ask for help from China. After circulating it from beginning to end, the person sitting behind the desk said: You have just read their specific plans, as well as the conditions and bottom line. Having said this, he put the cigar in his hand on the metal holder next to him and looked up at the sofa: Bob, do you think that if China agrees to the EUs conditions, how much impact will it have on the situation? ?On the other hand, Treasury Secretary Robert Edward Rubin hasnt even recovered from the report he just read. Its not that the content of the report is so incredible. On the contrary, the fact that the EU would seek help from China is basically a well-known fact and is not surprising to professionals. At most, he didn''t expect the former to be so stubborn. It took less than half a month before he couldn''t bear it anymore... What really shocked him was the report itself. It wasnt until he heard someone calling his name (Bob is Roberts nickname) that he suddenly woke up. However, he did not answer the other persons question immediately, but carefully confirmed: The accuracy of this information For Rubin, the content of the document just now was so detailed and substantial that it hardly seemed like intelligence. Even if he is asked to sit in the other party''s meeting and write a memo, it is nothing more than that. So his first feeling was even ?This cant be fake, right? After all, similar scripts were not uncommon in the battle of wits with the KGB over the past few decades. What if we are preparing to divert trouble to the east? As a result, the other party waved his hand directly: We have special intelligence acquisition channels in Europe, and the accuracy does not need to be questioned. ??Rubin still felt it was a bit outrageous, but since the leader said so, he couldn''t ask any more questions, so he had to continue to answer the previous question: Although Chinas economy is currently only the seventh in the world and not as large as Italys, its growth rate is rapid and its market potential is large enough. Its influence on the global economy is far beyond that of being the seventh in the world. "At present, the EU has basically taken out all their response measures. The exchange rate of the euro against the US dollar this morning remained at 1.0210. If China really uses the euro in all or most of its trade with Europe, I think... at least it can It will offset or even reverse the downward trend of the euro in 2-3 months. More importantly, I personally think that if the Chinese side with the euro, then we will probably not be able to push the exchange rate of the euro against the dollar below 1 in a short period of time. ??During the first few items, the other people still maintained their calm expressions, but when Rubin mentioned the last item, the atmosphere in the office changed almost instantly. The hypothesis of a rational person is just a hypothesis after all. Market confidence is something that is never rational to you. So everyone unanimously focused on the key exchange rate point of 1:1. It is no exaggeration to say that the negative impact caused by the drop from 1:1.1800 to 1.0210 may not be as great as the drop from 1.0210 to 0.9990 - If the euro is really hit below 1, even if it recovers in the future, the damage to its credibility will be irreversible. For the few people here today, they have been planning for such a long time, so naturally they cannot give up easily. So China cannot be allowed to openly support the euro. Albright, who was sitting opposite Rubin, spoke decisively: At least not in the short term. What should be done to stop them? The question came from behind the desk again. WTO negotiations? ??Albright was a staunch supporter and powerful promoter of Allied operations. Naturally, the first thing that came to mind was the direct approach: If they side with Europe... Im afraid it will be difficult to solve the problem simply ??Rubin felt his head swelled when he heard this crazy woman''s speech, and quickly interrupted her: Besides, Chinas joining the WTO is also good for us. ??Rubin himself also hopes that China can join the world trade system as soon as possible. Although he has not told outsiders yet, he has decided to resign within this year, hand over the position of Finance Minister to his student Lawrence Henry Summers, and go to work as a senior executive in the enterprise. A China that has joined the WTO will bring no harm to his career in his later years. So he quickly stopped Albrights crazy idea: You have to be strategic when doing things. China has not started talking to the Europeans yet. We cannot push them to come together. On the contrary, if we give them some sweeteners, we may be able to divide them..." ??Rubin''s prestige among the Donkey Party is considerable. Hence, after he finished speaking, several people immediately expressed their clear support. But what if the little white rabbit doesnt eat our carrots? ?Albright said something slightly joking, but there was no joke in his tone. (End of this chapter) Chapter 692 Running in both directions Chapter 692: Running in both directions The position of National Security Advisor is not an official employee, but a personal assistant hired by the president. So the specific role and influence it can exert depends entirely on the individual. And Sandy Berg is one of those who is relatively influential. So after he mediated in the middle, Albright did not continue to struggle with the WTO issue. But the problem just raised by the latter still needs to be solved. The influence of the euro is really too great. To put it bluntly, everyone in the world except the United States is happy to see the euro successfully challenge the hegemony of the US dollar. Although for most third world countries, the image of Europe is not as good as that of the United States. But having a choice is better than having no choice. ?So even if the American people today have high aspirations, they still know that relying on a little favor alone may not make China change its position. Carrots and sticks, the stick can be used but cannot be left out. Generally, the best and most convenient method is economic means. However, Rubins statement just now has blocked this road again. ?As a result, the huge Oval Office fell into a slightly abrupt silence. Its not that everyone cant think of other methods, but that the remaining method is obvious but full of risks. ?No one wants to be the first to propose something. Even Defense Secretary William Cohen. "Since economic means cannot be used...then the only remaining options are military means..." In the end, it was Albright who continued to develop his own character of a war madman. ??Rubin did not take a position this time. ?As a finance minister, he has neither the say nor responsibility in this matter. In fact, Rubin even held a noncommittal attitude toward the Allied operation itself. Its not that he has a good heart. Just as a veteran cadre who is about to enter the revolving door smoothly, I dont want to put more effort on myself. tired. But the other party is a nuclear country after all? ??Sandy Berg saw Rubin lowering his eyes and not speaking, so he had no choice but to step off and play the role of a brake pad. Of course its impossible to start a war directly, as long as we let the Chinese people know how powerful we are at the critical moment..." "In this case, let the Joint Chiefs of Staff come up with a suitable plan. However, the Allied operations are currently at a critical moment, and the effect achieved by air strikes alone is lower than expected, so... it is best not to open another battlefield." Butwhat are the limits of action? Henry Shelton, Chairman of the Joint Chiefs of Staff, originally thought that his affairs today had nothing to do with the army, so he had been eating melon nearby. Unexpectedly, he went round and round, and finally failed to eat the melon, and the blame fell on his head: "Military operations need to set clear starting and ending lines. To be honest, even the current Allied operations have violated this principle..." ?It is of course impossible for anyone to answer this question. After all, just half an hour ago, no one thought that today''s incident would be related to military operations... Speaking of returning to China. After all, the European Aerospace Group''s delegation is here for pure business negotiations, so it is impossible for China to come up and wait for the entire official delegation. ?That eating scene is too ugly. We are all decent people, and we still have to go through the cutscenes. So, after Chang Haonan received the call from Ding Gaoheng, he stayed in the capital for a few more days. ?Theoretically, the visit to the Torch Group was not included in the other partys itinerary this time. But the actual situation is not easy to say. ?In this era, when flying from foreign countries to China, no matter where the final destination is, you basically have to land in Beijing, Shanghai or Hong Kong Island. Since this European delegation came with the idea of ????building a plank road openly and secretly visiting Chencang, the first place to stay would naturally be the capital. ??Huaxia also knew that the other party had the purpose of negotiating with it, but it was hard to explain clearly, so in order to create opportunities, various retreats were arranged for the first three days of the entire trip. ?With such a two-way rush, the two sides naturally quickly caught up with each other and each offered its own price. The EU hopes that China will switch at least 70% of its trade with Europe to be settled in euros. In exchange, they are willing to waive compensatory taxes on the European Aerospace Group''s move of some parts production lines for Airbus A320 and 330 aircraft out of the EU. Originally, Airbus was going to transfer some of its suppliers to China, which would lead to a reduction in jobs in the EU, so some of the preferential policies granted to them in the past would be cancelled, and the money would have to be made up. The more production capacity is transferred, the more back taxes, in fact, fines will be paid. It can be regarded as a restriction of industrial protection. Now, I wont accept the money. In other words, it allows or encourages Airbus to transfer suppliers to China. After all, the latter has huge advantages in production capacity and cost on the premise that product quality meets standards. As for Huaxia, although Chang Haonan did not directly participate in the negotiations, he still explained his attitude towards the aviation industrial park through a direct report to Tianting. When it was first planned to undertake the transfer of the European aviation industry, the ultimate goal was to build an "Asian final assembly center" in China. ??It is to sell Airbus to Asia, at least the aircraft in East Asia and Southeast Asia, of course, mainly the two models A320 and A330, and send them all to China for final assembly of large components. Of course, at this time two years ago, China was still not sure about "producing a mainline passenger aircraft in accordance with the latest European industrial standards." ?Although Huaxia had assembled some MD82s at that time, they were all produced according to the technical requirements of the mid-1980s. At the turn of the century, not to mention Europe, even China cannot meet its own standards. Thats why we plan to proceed step by step. We will first produce some non-core parts with relatively low technical requirements in China. After the production capacity reaches the required level, we will then consider the final assembly. ?However, at that time, even Chang Haonan himself did not expect that he and the entire Chinese aviation industry could be so powerful. In the following two years, it would develop to the extent that it could directly guide Europeans in the design of aircraft. Although the level of production is still a little worse, it has achieved a considerable leap through several projects, especially the production of C808 passenger aircraft. ?Under such circumstances, the Europeans are still only willing to provide part of the parts production line as a condition, which really seems not sincere enough. After all, supporting the euro is risky. In addition to the reciprocal conditions proposed by the financial field, such as signing a RMB-Euro fixed-term swap agreement at a more favorable exchange rate, at least more words must be opened at the industrial level. ?For example, more production processes involving core components, such as automatic carbon fiber laying to produce wings, will be introduced into the country. Or start implementing the Asian final assembly center in advance. In short, the euro has become the virtue it is now. It would be good to find someone to support it, and the conditions must be stricter. Originally, Chang Haonan thought that although this set of boxing combinations could not be regarded as taking advantage of others'' danger, at least it was a bit like adding insult to injury. Even if we can negotiate, it will still be a stalemate for a while. ?But soon, the American sent an assist. One morning in mid-April, the euro opened below 1.0100. This means that there is basically only the last tremor left before the critical node of 1:1. Please do not mention relevant historical events directly in the comment area. The risk is very high and may easily lead to additional review. It is not easy to publish these chapters in full... (End of this chapter) Chapter 693 american revenge Chapter 693 American Revenge Chang Haonan, who did not directly participate in the negotiations, received the complete version of the agreement between the two parties only a few hours late. ?This time it was not Ding Gaoheng who gave it to him. As a professional with extensive experience in dealing with the EU, Yang Huimei participated in the entire negotiation process. ?Although the terms of the agreement are very long and contain many details, the core conditions can be summarized in just a few points: ??European Aerospace Group has promised to start final assembly qualification certification for China within two years. Construction will officially start after approval. The EU will not impose compensatory taxes on this project and will provide necessary policy conveniences. In addition, Germany, France and Italy pledged to fully support China''s accession to the World Trade Organization. Even if the negotiation process is blocked due to external factors, the three countries will provide China with the most-favored-nation treatment equal to that of WTO members before December 1999, and in 2002 This treatment will be extended to the entire EU by December next year. China, on the other hand, promised that in the next five years, no less than 50% of EU trade will be settled in euros, and agreed to reduce the business scope involved in the Asian assembly center. The first phase of the project will only include one series of A320 aircraft. As well as orders from China and Southeast Asia (except Singapore), access restrictions in multiple fields will also be opened to EU countries on an equal basis. Simply put, regardless of whether China joins the WTO in a legal sense, both sides will treat each other in accordance with the conditions of WTO members. It is a yes to be treated as a public servant. As for other contents, it can be regarded as written by the internal departments of both sides that have trade needs. ?For example, the "computer software and related technical services" project, even if there are similar carriers such as CDs, it still enjoys zero-tariff treatment. It is obviously added for Chang Haonan''s sake. The result of the negotiation was reached so soon? ?Chang Haonan looked at the thick agreement in front of him with shock in his eyes. ??It''s the kind that used to appear in the eyes of other people across from him - It is indeed too fast. This speed is almost equivalent to taking three years to build a turbofan 10. The person opposite is the European who loves red tape the most... We have common interests with the Europeans on the matter of not letting the euro collapse, at least not too quickly. So, in fact, from the very beginning, the two sides were talking with their cards on the table. ??Yang Huimei obviously didn''t get much rest these days. She sat on the sofa beside Chang Haonan''s office and rubbed her forehead while saying: "Actually, if the euro''s exchange rate can fall a little slower, I guess it will take some time to reach a consensus, and Europeans are not that easy to talk to." "Based on my previous experience, their mentality when negotiating with us is actually very awkward. On the one hand, they know that there are benefits to cooperating with us, so they have to sit down and have a good talk, but on the other hand, they like to put on airs and feel like sitting down Negotiating is bowing to a developing country..." ?This mentality is a bit difficult for Yang Huimei, but in Chang Haonan''s view, it''s not a big deal. Just pretend that the person facing you is captured by the orcs... ?Although I say no, my body is very honest... Ahem, thats probably what it feels like. After a brief pause, Yang Huimei continued to add: "Moreover, just a few days ago, when we first started to contact the Europeans, I heard that the Americans also offered a price, saying that they could relax the conditions for industry access rules during the WTO accession negotiations, especially no longer requiring China has fully liberalized access restrictions in the fields of telecommunications and agriculture. Hearing this, Chang Haonan couldn''t help but sneered: This is obviously playing cards out of thin air. The sincerity is far worse than that of the Europeans. They didnt even say how much they would relax. If we go to talk to the other party and delay for a while, the euro may really collapse..." While speaking, he stood up and went to the small table next to him, made Yang Huimei a cup of tea, and placed it in front of her. After all, others have benefited a lot from the Torch Group during the negotiation process, and now that they are so exhausted, they cannot just let it go. Creating cards in the void ??Yang Huimei picked up the cup and blew on it while recalling the word she heard for the first time: This is a very vivid statement. Its nothing but nothing, but its still very useful as a bargaining chip to negotiate terms with the Europeans. Because of this, one of our delegations that was originally scheduled to go to the United States at the beginning of the month has been postponed. "However, after the euro fell below 1.0100 three days ago, both sides felt that the problem was serious and could not drag it out any longer, so they each took a step back. Anyway, the content of the agreement was already written in detail before the talks began. The last step is to modify a few key numbers and add a few insignificant pieces of content, which is very fast. ?Chang Haonan raised his head and looked at the perpetual calendar. April 15th. Compared to the previous generation, the speed of the euro''s decline this time is indeed a bit exaggerated. When will it be officially announced? At five oclock this afternoon Beijing time, which is noon on the European side, the market is still in a wait-and-see mood. If the news is released, the exchange rate should be restored in the afternoon. ?Yang Huimei lowered her head and took a sip of water: Actually, the original plan was for tomorrow morning, but the EU probably doesnt want to wait for more than an hour Speaking of which, from a professional point of view, can our support really reverse the decline of the euro? ?Although Chang Haonan proposed a plan to help the euro in exchange for conditions from the beginning, he actually has no systematic knowledge of finance, so he is really unable to do quantitative judgment. Facing this question, Yang Huimei hesitated for a while, but finally nodded: During the break in negotiations, I asked representatives from the central bank. They thought that there would be no problem in the short term, but if chaos continues in the Balkans, the euro will always be in big trouble in the long run. This long term refers to Depending on the destructiveness of Allied action. ?Yang Huimei regained her energy a little, sat up straight and replied: If it really lasts for a few months or even a year, even the gods will not be able to save the euro..." And not only the war itself, but also other subsequent problems will have an adverse impact on Europes economic stability. Among other things, the economic and moral pressure on future post-war reconstruction and refugee reception will definitely fall on the EU. After all, if we really want to trace the source, they themselves started this round of things, and the Americans just came to wipe their **** and make peace ?Chang Haonan shook his head, not knowing how to evaluate it. ??If it werent for the fact that both sides now have a common interest in fighting the US dollar, he would just want to say What a death, you really deserve it. ?Seeing that Chang Haonan did not speak, Yang Huimei was silent for a while and then continued: "However, after all, this kind of follow-up impact is scattered over a few years. At present, what we are more worried about is whether it will arouse overly intense protests from the Americans after the agreement is made public. reaction, and how to respond. Including clauses specifically included in the agreement regarding the obstruction of WTO accession negotiations, it is also to prevent the other party from intending to retaliate against us in this matter. After all, the world''s most powerful country can be looked down upon strategically, but tactically it must still be respected enough. "There''s nothing you can do about it...this kind of thing is a fundamental conflict of interest." ?Chang Haonan sat back behind his desk, half leaning on the chair and said: "If we seek peace through struggle, we will survive peacefully; if we seek peace through concessions, we will perish peacefully. Joining the WTO is indeed beneficial to us, but if we abandon the bottom line principle in order to join the WTO, it will probably be counterproductive and further encourage the other side to speak loudly. In the end, even if If we add it, we will end up like Mexico in the North American Free Trade Area. ??He was chatting with Yang Huimei about the negotiations with Europe, but his mind had already begun to think about some content that was not convenient to say. As a reborn person, he knows very well that the EUs information is basically one-way and transparent to the United States. As for the signing of the agreement between the two parties, the latter may have received relevant news a few days ago. ?Of course, even Chang Haonan could not have imagined that the outcome could be reached so quickly, and the Americans would most likely be caught off guard. So the other sides current preparations are not so much retaliation as they are beating. It''s just that the matter was finished here before I had time to knock. But in any case, if the other party is preparing to cause obstacles in the WTO accession negotiations, then the negotiations are currently underway, and news should have come back long ago. Since there has been no movement so far, it means that the Americans actions are most likely not on trade. But it takes longer to prepare. In this case I can only hope that my preparations so far will be effective... (End of this chapter) Chapter 694 ghost attack Chapter 694 The Ghost Attacks ?Chang Haonans estimate is not wrong. ??Although the US intelligence agency does have a "special intelligence acquisition channel" in Europe, this channel cannot be real-time and there will always be an update cycle. ?Especially since the EU delegation is currently in China, this cycle will be longer than that in Europe, which has already iterated on a mature path. So, by the time the news spread back to North America, the news about "a package of trade agreements reached between the EU and China" was already broadcast on TV... EST, early the next morning. Still the Oval Office. Still the same few people. But the atmosphere in the room was completely different from the previous days. Several cigars were lit, making the splendid office filled with smoke. No one spoke. Everyones attention is focused on one corner of the room. There is a TV there, which is playing the scene of Chinese and EU negotiators answering reporters'' questions at the press conference. In the next five years, no less than 50% of the trade between China and the EU will be settled in euros. In addition, when conditions permit, both parties will also try to be more diverse in a broader scope. The means of using currency..." "Germany, France, and Italy will sign a free trade agreement with China before December 31, 1999, with reference to the most-favored-nation trade status. This agreement has the principle of openness and does not rule out the inclusion of more countries in the future. The EU recognizes that China is a global player. The important role played in the process of market opening, understanding and supporting Chinas demands to join the World Trade Organization..." Everyone has a "numb" expression on their faces. ?Compared with the information they are holding, the content shown on TV is not complete. For example, it does not mention some details of tariff reductions. But the core meaning is the same. Obviously, their movements are still too slow. I have long said that my previous stance should be tougher, but now they obviously dont take us seriously at all ?After a long silence, Albright frowned and waved away the cigar smoke that obstructed his vision, and spoke in a slightly hoarse voice. Logically speaking, in the current situation, it is not suitable for her as a secretary of state to speak in such a tone. But in the past few years, a series of scandals, each bigger than the last, have already damaged the president''s authority. ??Had it not been for the fact that the United States was still on the rise at this time, and the donkey-elephant dispute was more or less a shame, I dont know what would have happened. Fancy flowers, no problem. Everyone is in a moral vacuum anyway. Dont say that the target of the zipper door is an adult woman, even if it is an underage boy...ahem. But after you finish playing, you are left with a mess of things that you cannot clear up, and in the end you have to let others follow you to wipe your ass. This is a question of ability. In this circle, people can be bad, but they cannot be stupid. So now, the entire team doesnt take the person behind the desk seriously... ??Rubin, who was sitting opposite, didn''t look good either. ??This round of complex games surrounding the Balkans is relatively complicated and involves many fields such as foreign trade, monetary and financial policies, and military operations. ??But there is no doubt that no matter what the superficial reason for the series of operations is, its core purpose is to suppress the new euro so as not to threaten the dollar''s absolute dominance in international trade. As the Minister of Finance, he is naturally directly related to this. Now that China has implemented this operation, the exchange rate of the euro against the U.S. dollar has risen by nearly two percentage points. Although it is not worth mentioning compared to those that have already fallen, this is obviously not a trend that the United States wants to see. ?Of course, Rubin will not let go easily: "The problem now is not whether we are tough or not, but we didn''t expect that the Chinese would completely ignore the conditions for our departure, and that the Europeans could reach an agreement with the Chinese so happily, which led to the failure of the previously planned plan. Too late to implement. "Taking a step back, if you look at the specific content of this agreement, it has obviously taken into account the worst case scenario of failure to join the WTO. If China and Europe are really allowed to establish a free trade area and then include Russia and ASEAN, we will not have to Whats happening with the World Trade Organization "Moreover, we promised those companies to open up the Chinese market. If something goes wrong in this regard, the entire West Coast may become an iron vote warehouse for the Elephant Party. For at least the next twenty years, Congress may be dominated by the Elephant Party alone. Da, will you be responsible for this when the time comes?" ?Albrights lips moved but he did not continue speaking. Although the Secretary of State has a higher position in the cabinet than the Secretary of the Treasury (fifth vs. sixth), Rubin has an extremely close relationship with the financial capital of Wall Street and has disciples and former officials all over the United States. , but actually a very influential figure. And what the other party said makes sense. ?The office fell silent again. Since the agreement between China and the EU has been signed, are our previous preparations... unnecessary? Henry Sheldon, Chairman of the Joint Chiefs of Staff, doesnt care about exchange rates or trade. He just wants to quickly persuade the guys in front of him to take back their previous crazy ideas so that he can order the 509th Bomber Wing to end its combat readiness. As a professional soldier who has walked on thin ice during the Cold War, he has clearly realized that the current cabinets application of military means is too childish. The great victories in several previous operations have made them forget about the old events of Goryeo and Annan. They have excessively abused force, and they have used excessive force against opponents whose level is far lower than themselves. This is by no means a good sign for an army. . However, as a purely military department, the Joint Chiefs of Staff itself does not have the power to make decisions under the modern command mechanism, so it can only make suggestions where possible.?????Of course not! ?Albright''s answer directly made Sheldon''s eyes darken. But no matter what we do now, there is no way they can withdraw from the agreement... The latter is still trying to save the situation. But people often cant hold on when they cant hold on. ??Albright is currently in a state where his defenses have been broken: "We must teach China and Europe a lesson now. Otherwise, if we allow them to cooperate, not only will our efforts in the past period be in vain, but it will also affect the prestige of our speeches in the future. If we can''t even deal with China and Europe, how can we talk about leading the world? ? "Moreover, even if the agreement cannot be withdrawn, it can still be delayed at the implementation level. The euro exchange rate has not recovered much now, only 2%, which shows that the wait-and-see mood in the market is still there. As long as the Chinese people dare not take action immediately , the newly built confidence will collapse again, and it will collapse faster than before..." Sheldon has secretly scolded this crazy woman countless times. He said in his heart that even if we take action, we will not be able to cause much damage to China and Europe. At most, we can only save some face... ?Of course, you still have to change your words: But the risks behind this There will be no risk. ?Albright interrupted Sheldon directly: We pay you 270 billion U.S. dollars every year. Do we dare not take action just because a plane crashed a few days ago? Hearing her talk about the military expenditure issue, William Cohen, who had been watching the Donkey Party jokes just now, couldn''t sit still. He has served as Defense Minister for two years and plans to serve for another two years. When the next Xiang Party cabinet comes to power, he will retire and go back to open a company to specialize in the internal business of the US military. Now he even has the company name and operating structure. All thought out. ??If there is a mistake in military expenditure, it will undoubtedly be equivalent to taking money out of his cornucopia. ?? But now Cohen has become a veteran, and he knows that if he expresses his position at this time, he will probably take the blame in the future, so he directly diverts the trouble to the east: This matter should be left to our Commander-in-Chief to make a decision... Lets just follow the plan we made before Sheldon felt that his high blood pressure was about to break out, but he had no choice but to stand up, salute towards the desk, and then turn around and leave... ?That evening. Whiteman Air Force Base, Missouri. ??Brigadier General Bonn Marlott, who had just put on his dark green flight suit, held the mission document marked "SECRET" on the cover in his hand, and walked to the concrete hangar not far away with his partner Colonel Sempney Statham. At this time, the huge hangar door has been opened, and several flying-wing stealth bombers are parked inside. B2 "Ghost". The original purpose of this aircraft design was to rely on stealth and low-altitude penetration capabilities to carry free-fall nuclear bombs into the vast Siberia and hunt for land-based intercontinental ballistic missile launchers operating there. However, when it was actually put into service in 1997, the imaginary enemy had long since ceased to exist, and it could only carry out some ordinary bombing missions with far lower risks than expected. At the end of last month, the B2 bomber completed its first combat mission in its career. Of course, its just a test. According to the original plan, the Allied operation did not require a second sortie of this strategic weapon. But a few days ago, the 509th Bomb Wing suddenly received an order to re-enter combat readiness, and received a new top-secret mission this morning. Only the captain, Brigadier General Marlott, knew the specific mission information, and even Colonel Statham could only be informed after the plane took off. The two quickly came to the B2 scheduled to be used for the mission. ??Although he has mobilized this unit to serve for nearly three years, Colonel Statham is still shocked by the appearance of this aircraft every time. Just like the alien battleships he saw when he was a child. Since there is no vertical tail, the aircraft number is written on the nose landing gear door. 890127. On the main landing gear door, the name of the aircraft is written: Spirit of Kansas Strategic bombers like the B2 are extremely costly and rare in quantity. Each one has an extraordinary meaning, so just like the warships of the Navy, they have their own names. ?This one is called "The Spirit of Kansas." As usual, Marlott and Statham signed the flight mission sheet handed over by the ground staff, then climbed into the cockpit one after another along the ramp behind the nose landing gear, and began to perform various pre-takeoff inspections according to the checklist. . In the weapon selection interface, Statham saw 6 GBU-31 joint direct attack munitions. ?Basic flight data, such as weapon load, should have been informed to the pilot during the mission briefing, but this process was not followed during today''s mission. Instead, Brigadier General Marlott took him directly onto the plane. ?This made Statham feel a little different. Half an hour later, the Spirit of Kansas bomber drove down the taxiway to the end of the takeoff runway. As the two pilots pushed the four sets of throttle valves to the end at the same time, the four F118GE100 engines burst out a total of 33.8 tons of thrust, pushing this behemoth weighing more than 150 tons to slowly accelerate on the runway. After a taxiing distance of about 1,000 meters, Brigadier General Marlott pulled the control column backward. With a feeling of overweight, the black-painted aircraft lightly left the runway and quickly disappeared into the vast night sky... (End of this chapter) Chapter 695 Precision guidance went awry Chapter 695: Precision guidance...guided astray ? ? Thanks to the high lift-to-drag ratio of the flying wing layout and its weak sensitivity to cross winds, the B2''s takeoff process is relatively smooth and fast. However, once it leaves the ground, it is not an easy-to-control aircraft in the air. Especially because there is no vertical tail, B2 can only generate yaw moment by controlling the two outermost pairs of control surface slits. The control efficiency and stability of the yaw axis are very poor. Therefore, throughout the climb, the two pilots were concentrating on their own control tasks, and there was no other communication except necessary passwords. ?It wasn''t until the Spirit of Kansas entered the cruising altitude that Colonel Statham relaxed a little and looked at the mission briefing placed on the left side of the cockpit. Brigadier General, our specific mission is... Marlott, who was next to him, did not speak. He was still staring at the front attentively. He held the joystick tightly with one hand and handed the file to Statham in the co-pilot seat with the other hand. In fact, although air force commodores and even higher-ranked air force commanders will theoretically retain their flying qualifications and aircraft, the number of training flying hours in peacetime is far less than that of the flying backbone of the captain level. This is especially true in the strategic bomber force. ??He must be the captain today simply because pilots with too low a military rank do not have access to enough confidential information. ??Yes, even this mission briefing is still incomplete. There is only simple content such as "how to fly and where to bomb", but there is no mention at all of the specific target to be bombed. ?Hence, Statham was still confused after taking it apart and reading it from beginning to end. ?According to the requirements, they will fly for more than 30 hours and conduct two aerial refuelings over the North Atlantic. However, the ultimate goal is to drop six 2,000-pound guided bombs at a seemingly unremarkable coordinate... Brigadier General, the specific goal is... ?When asked this question, Statham''s mind had already flashed through various possibilities, including chemical weapons to dirty bombs. Otherwise, it is difficult to explain why they were rushed to send them on a second mission less than a month after the first operational test. Even if a second test is to be conducted, preparations should be started at least a few days in advance. Especially when a stealth bomber was lost just a few days ago, we should be more careful. After all, the B2 is not a tactical aircraft like the F117. If there is anything wrong with this baby that has just been in service for two years and has only 21 aircraft in total, it will be a huge loss even for the wealthy US military. Not to mention that if it is a battle damage, the continuous loss of stealth aircraft will also be a huge blow to the deterrence force that the military has finally re-established. Hearing his subordinates question, Marlott also felt a little overwhelmed. After thinking for a while, he still shook his head: I dont know, just follow the instructions. Actually, the Brigadier certainly knew that. ??But he himself felt that this mission was really outrageous, and he was afraid that nothing would happen after it was completed. For Colonel Statham, who had a bright future, it was better to know as little as possible. At least the psychological burden will be lighter... "But don''t worry, what happened to the Nighthawk before was because the idiots in the Naval Aviation took it upon themselves to reduce the mission frequency of EA6B, which allowed the opponent''s radar to seize the opportunity. This time, the Joint Chiefs of Staff specially coordinated the Marine Corps'' first 2 Electronic Warfare Squadron, they will take off 4 EA6Bs and provide cover in two batches after we enter the theater airspace. Even if the early warning radar happens to see us, the missiles will not be launched. " ??Although Statham did not ask, maybe it was to divert his attention, or maybe the brigadier himself was worried about the same thing. In short, Marlott changed the subject and took the initiative to mention the previous F117. Since the army and the air force are essentially the same thing, this blame is naturally thrown to the navy. As a professional soldier, Statham originally had no intention of pursuing the matter, but now his attention has been successfully diverted: "If you let me say, it was not a wise decision for the Air Force to retire all EF111s the year before last. It is impossible to fully cope with the air defense pressure by relying on the F16CJ alone. As for asking the Navy or Marine Corps to provide us with electronic warfare cover, it is not a long-term solution... " "It''s too late to say this now, and it''s not something you and I can decide." ? ?Marlotts mind is a little confused now, and he is not interested in complaining about the Congressman with his subordinates: "This flight will last 30 hours. You should take a rest first. We will take turns to be responsible for the flight..." 15 hours later. Over the Adriatic Sea. ?An EA6B electronic warfare aircraft that had just taken off from the Roosevelt found the "mysterious target" that needed cover at an altitude of 8,500 meters according to the scheduled flight plan. There is not much difference between using two aircraft and one aircraft for accompanying electronic cover. Therefore, the other Prowler that took off earlier has already gone to the combat airspace in advance to conduct air defense suppression operations against possible threats. AV12, this is Echo 01, we are about to enter the combat zone airspace, do you receive it? ??On the Spirit of Kansas, after hearing the call from the electronic warfare aircraft, the two pilots finally relaxed after being somewhat nervous along the way. Based on past experience, except for the old rival Homeland Defense Force and the lightning-fast MiG-25 in Operation Desert Storm, no enemy has been able to effectively resist the electronic suppression of the EA6B. Echo 01, received by AV12, we are about to descend to 5000 altitude. JDAMs of this era were not widely equipped with later extended-range gliding kits, so their flight distance and maneuverability were limited, and there were also strict restrictions on throwing height and speed. "receive." ? Brigadier General Marlott gently pushed the control column while retracting the throttle, and piloted the aircraft into a shallow dive altitude. At the same time, Statham, who was in the co-pilot position, began to set the aircraft''s final attack route on the integrated display in front of him, and input the coordinate information of the target for the six JDAMs in the magazine. April 17, local time, at 23:40 in the middle of the night. The Spirit of Kansas began to enter the preset bombing route. AV12, Echo 02 reported a P-band radar signal source. The frequency band is difficult to interfere with, but it is preparing to carry out destructive air defense suppression. Another C-band signal source has been completely interfered by us and there is no threat. Of course, the B2 aircraft is also equipped with a radar warning receiver, but as a stealth aircraft, this equipment is of little significance because it is impossible to judge whether the radar wave has actually detected itself. ?From the cockpit, you can see a flash of fire about a few kilometers away. It should be Echo 01 launching an AGM88 anti-radiation missile towards the signal source. ??The overall performance of this model in this operation was poor, with a hit rate of only single digits, but at least it was able to force the opponent to shut down and move positions. Open the magazine. ??As the command was given, Colonel Statham flipped the lever switch on the left-hand panel, and the four huge magazine doors on the belly of the aircraft opened. This is the most vulnerable moment for stealth aircraft, especially the fire control radar deployed in the side direction, which can relatively easily capture the continuous echo signals. The F117 last month was shot down by an anti-aircraft missile during this process. Fortunately, neither EA6B reported any other suspicious signals. Marlot stared outside the cockpit. Although the ground was relatively dark due to the blackout, he could still see a sparkling river with the help of the moonlight. That is a landmark of this mission. Drop a bomb. At 23:43, Brigadier General Bonn Marot, commander of the 8th Air Force of the Air Force, and Colonel Sampny Statham, commander of the 509th Bomb Wing, jointly pressed the bomb release button, and six GBU31 aerial bombs were loaded from the magazine. The aircraft whizzed down, flying according to the target set by the program. ? After completing the bombing, Statham closed the magazine as quickly as possible, and then breathed a sigh of relief: Fortunately, everything went well. Just like half a century ago The 509th Regiment is the only unit in human history that has used nuclear weapons in actual combat, and it has always been the pride of this unit. According to the flight plan, they will make a 180 turn and embark on a return journey in about two minutes. Can you see whats going on on the ground? In order to achieve ultimate stealth, the B2 bomber is not equipped with a visible light sight that can be used for earth observation (nuclear bomb dropping does not rely heavily on accuracy). In addition, the first-generation JDAM does not have a two-way data link, so the bombing effect can only rely on the naked eye. look. But at this time, Marlott had already controlled the aircraft to start climbing, and the cockpit with a flying-wing layout had almost no downward view, so Statham did not observe the effect of the bomb. I cant see it, but since it has been successfully cast, there shouldnt be any problems. ?Statham shook his head: Lets have a nearby tactical aircraft with a pod confirm it later. ?Marlot just asked casually, not really wanting Statham to see anything. Hearing what the latter said, he nodded. Sit tight and prepare to turn. at the same time. ?Six aerial bombs that were quietly approaching their targets in the night sky suddenly began to receive new GPS coordinates and determined that they had deviated from the "correct" flight path. ?Under the control of the navigation system, the wings at the tail of the bomb began to move, trying to align the flight direction with the set target. Obviously, this is where the GPS jamming equipment that was sent nearby began to work. Since this area is home to foreign institutions and media, the coalition has never used weapons here in the past and has not found any abnormalities in the GPS signal here. ?Of course, they will find out soon enough. In fact, according to Chang Haonans calculations on the map, when mode 1 is turned on for jamming, the bombs targeting the jamming device itself will be transferred to an open space a few kilometers away. ?But after all calculations, he forgot that the JDAM of this era did not have an extended-range gliding kit, and it was impossible to make a large enough route change. At 23:45, six bombs "accurately" hit the roof of the Falcons Hotel, the tallest building in the area. ?Three of the bombs located slightly further away from the false target identified a problem with the route and turned off the fuses before hitting the target. But the other three detonated almost simultaneously after penetrating the entire floor. For an ordinary civilian building, there is no difference between a 6-ton bomb and a 3-ton bomb. ??And because the terrain is high enough, it happens to be the scene where many media are reporting or live broadcasting the Allied operations... (End of this chapter) Chapter 696 Shoot down B2 Chapter 696 Shooting down B2 Beijing time, 5:45 am. ? Ding Gaoheng was in the office of the Committee of Science and Industry, staying up late to watch a foreign TV stations live report on the Allied operations. ??Of course he couldn''t be waiting for anything on purpose, but he felt inexplicably restless last night and couldn''t sleep after tossing and turning, so he had no choice but to turn on the TV to kill time. ?However, no matter how much he suffers from insomnia, he is still an old man who is almost seventy years old. After staying up until the early morning, he is basically already in a half-asleep and half-awake state. ??The report by the female reporter from AFP on TV is more like a hypnotic background sound. ?However, at this moment, a sound like thunder suddenly sounded, startling Ding Gaoheng, who was dozing off on the sofa, to jump. But when he calmed down and looked at the TV screen in front of him, he found that the picture inside had disappeared. "Um?" Ding Gaoheng smelled the smell in the room subconsciously. His first reaction from the thunder just now was that the TV was broken. But there is no burnt taste as expected. ??And if you look closely, you will find that although the screen is black, the logo of France Television 2 and the banner subtitles below are still there. It is obviously not a problem with the TV or the receiving antenna. ??But the signal source for the broadcast was cut off. Its almost six oclock Ding Gaoheng looked back at his watch. He had no intention of going back to sleep. Instead, he picked up the remote control next to him and changed the channel, preparing to take a look at the current situation in the Balkans. ??Although Western reporters are considered not to be very fast, in this era there are only a few that can carry out real-time television broadcasts around the world, so there is very little room for choice. Why is there no signal? He changed several channels he usually watched in succession, but the situation was the same as before. There is a station logo, but no picture. While Ding Gaoheng''s head was filled with questions, the Reuters broadcast signal finally switched back to the studio. The host in London also looked confused and said that their front signal was suddenly cut off. The reason was currently being investigated and the TV station would During this time, other content will be temporarily inserted. Perhaps the Americans have released electromagnetic interference again ?While thinking this, he got up to wash up and start handling today''s official duties. He had not yet realized that he had just witnessed an event that could rewrite the course of history almost live... at the same time. Balkans region. The USS Spirit of Kansas bomber, which had just completed bombing, had flown to the end of the bombing route according to the route plan. The ailerons on the rear edge of the flying wing drove the heavy aircraft to slowly roll to the left, while continuing to climb to increase the flight altitude as quickly as possible. Although the two EA6Bs have suppressed all surrounding high-threat radar signals, the flight altitude of 5,000 meters when dropping bombs is not out of reach even for some portable air defense missiles, so it is better to return to the high-altitude route of about 10,000 meters as soon as possible is safer. Echo 01, our radar warning receiver shows that the previous meter-wave radar signal is still working. Please confirm the situation? Colonel Statham on the co-pilot asked the nearby EA6B on the radio. Even for the US military, how stealth aircraft pilots process RWR information is still a huge problem, but now this task can be completed by the electronic warfare aircraft next to it. "The deployment position of that radar is very awkward. The anti-radiation missile needs to find another angle to improve the hit rate. Echo 02 is adjusting its route, but the missile launched by my aircraft just now has hit the previous C-band signal source. Currently, the entire There are no high-threat radar signals in the airspace. In this operation, the AGM88 anti-radiation missile was an eye-catching performance. In fact, to a large extent, it was not because of poor performance, but because the urban environment was too complex. This kind of thing designed in the Cold War era was never considered for use under such conditions. . Hearing that the biggest threat had been destroyed, Colonel Statham breathed a sigh of relief, and then realized that he had just been paying attention to the RWR, so he forgot to push the throttle on the left. Fortunately, the plane had just started to climb and turn, and the speed did not drop particularly badly, so he quickly made up for this action. ??There is a disadvantage when two pilots are respectively the air force commander and the wing commander. Although they are all senior pilots with thousands of hours of experience, the intensity of recent training has been relatively low, and it is easy for some omissions to occur under pressure. However, this inconspicuous omission was a golden opportunity for Lieutenant Colonel Zoltan Dani, who had been ambushing on the ground for a long time. ?However, this is actually not accurate. Because he actually commanded the troops to shoot down a stealth fighter half a month ago. After achieving that world-shocking victory, Danny did not stop studying the patterns of enemy air force activities. Soon he discovered that although stealth aircraft are invisible to radar in most cases, they can judge whether the other party is currently deploying stealth aircraft through the activity trajectories of other aircraft in the airspace. ?For example, right now, there are only two solitary EA6Bs over the entire city. All tactical targets that look like F/A18s, Mirage 2000s or F16s were concentrated and withdrawn to the north of the 45 north latitude line or south of the 44 north latitude line about half an hour ago. This is a signal that stealth aircraft are about to enter the market. Therefore, he immediately instructed the three (one active and two passive) P18 radars that were intermittently powered on to enter continuous working mode. At the same time, he also turned on another C-band fire control radar to prepare for firing with anti-aircraft missiles. in order to distract the other party from the threat of the former. . ?In the past half month, his missile base has used up most of its ammunition, and it is impossible to effectively track targets under electronic interference. Keeping these fire control radars no longer has much tactical value. For the lieutenant colonel, the killer move this time was the radar upgrade kit obtained from an old friend on the eve of the Allied Operation, as well as the eight 100mm anti-aircraft guns that were pulled out of the warehouse just a few days ago. Among the things sent by the Buryat businessman, there was a complete operating manual and firing chart for this anti-aircraft gun. ?However, in order to increase the firepower density, he did not fully refer to the manual''s requirements for a circular arrangement of anti-aircraft positions. Instead, he deployed all artillery groups in the middle of a building ruins near the safety zone and pointed them in the same direction. As for the deployment density, it is far beyond what is allowed by any operating regulations... If things are urgent, we can''t take care of so much. Because the area is filled with foreign agencies and media, few aircraft, especially electronic warfare aircraft, will be active in the area except for the first two days of the Allied operation. While maximizing concealment, it also almost limits its own shooting range. As for what to do if the target appears in another direction... It''s over if you don''t fire. Since it was already riddled with holes, it might as well miss a few more planes. Preserving yourself is the most important thing. But today, he really got the bet. After the three P18 radars were activated, he quickly received a report from the radar operator. ?Besides the two EA6Bs, there was indeed a sneaky target flying towards the air defense position he deployed. Lieutenant Colonel, the ammunition has been loaded and the firing elements are being adjusted according to the radar signal. Do you need to fire immediately after the target enters the killing range? ??A captain in charge of the firing position asked over the intercom. ?Danny wanted to nod in agreement immediately, but then he thought of a better way. Dont be impatient first. See if the other party has any intention of turning. If so, wait until they slow down before firing. ?This multi-point passive detection system is good in every aspect, but the target update frequency is a bit slow, and he has no chance to conduct a test launch, so he is really not confident enough. But what if the other partys target is us? ??The captain asked. ?Judging from the opposite course, it does seem to be rushing straight towards them. Then accept it. The lieutenant colonel replied with an indifferent expression: "If the opponent really finds us, they won''t be able to escape anyway, and I believe in the concealment of this position." At this point in the war, he no longer cares about these things. The person on the intercom was obviously paused for a moment, and then replied: "receive!" Soon, the signal reflection on the radar screen suddenly became stronger for a moment. This is a signal for a stealth aircraft to open its magazine. Danny''s palms gradually began to sweat. About a minute later, he heard a continuous loud noise in the distance. Obviously, the other party is not coming for them. Almost at the same time, the opponent began to make the turn he had been waiting for. ?Although turning and climbing itself will not cause the aircraft to lose speed particularly seriously, from the perspective of the projection of artillery damage, it will indeed be easier to hit. With the help of a firing list for each gun crew, the eight -19s aimed the muzzles at the position reported by the radar operator as quickly as possible. Fire! As the lieutenant colonel''s order was issued, the eight anti-aircraft guns fired a round of short fire that lasted about half a minute and totaled about 60 shells. ?Almost at the same time that ground artillery fire began, Colonel Statham in the Spirit of Kansas made up the action of pushing the throttle valve. In fact, if he does not perform this action, the aircraft that is constantly losing speed is likely to be too late to fly into the kill zone... ?Furthermore, the powerful electronic jamming capability of EA6B is even enough to affect the working conditions of radio proximity fuzes. ??But the batch of artillery shells that Lieutenant Colonel Danny dug out from the warehouse did not have any fancy tricks, and they even used the oldest time fuses. The kind that is hand-tightened before firing. In short, everything is so coincidental. "boom-" ??The first gray smoke cloud exploded almost directly in front of the plane. "Um?" For pilots in the late 1990s, "being shot by a large-caliber anti-aircraft gun" was something that was completely unimaginable. So the two people in the cockpit looked at what was happening in front of them almost blankly. But in the next moment, the outside of the plane was almost enveloped in dazzling flashes of light. No, we were attacked by anti-aircraft fire! Echo in the distance After pilot No. 01 heard such a call, there was no sound on the radio. ??The two electronic warfare officers sitting in the back seat of the EA6B watched dumbfoundedly as a dense plume of smoke appeared a few kilometers away, followed by the flames of the aircraft burning in mid-air. Thanks to the leader of book friend IDK_WHP for the reward! (End of this chapter) Chapter 697 Radar catches ghosts, anti-aircraft guns drive away evil spirits Chapter 697: Radar catches ghosts, anti-aircraft guns exorcise evil spirits ?Two 100695mm.R shells exploded about 15 meters to the right side of the Kansas Spirit. The flying fragments shattered almost the entire outer part of the wing. ??If it were a conventionally configured aircraft, such damage might not be fatal. But for the flying-wing B2 bomber, its core flight movements almost all rely on this part of the action surface. As a result, the aircraft under attack began to bank uncontrollably to the right. It was only then that Marlott and Statham in the cabin came to their senses and realized that such continuous and evenly distributed explosions should come from anti-aircraft guns rather than anti-aircraft missiles. ?For a moment, the two of them even had the illusion of time and space intersecting, thinking that they had gone back to World War II to fly B29... ?But thinking back on it, the pilots instinct is still there. Almost at the same time as the first two shells exploded, they tried to steer the aircraft to the left to avoid the densest part of the anti-aircraft fire as much as possible. ??However, after losing the right side of action, this action is almost destined to be impossible to complete. The plane immediately got into the denser barrage that followed. Subsequent fragments quickly shattered the fuel pipeline and engine, and the leaked high-temperature gas quickly ignited a long flame behind the fuselage... Ready to eject! Colonel Statham, who had more combat experience, first realized that it was impossible to save the Spirit of Kansas. At this critical moment of life and death, he naturally did not consider the impact of losing a precious strategic bomber, and in this kind of situation The risk of parachuting behind enemy lines is that you can only prepare to escape immediately. "Wait a moment!" ??Malott''s qualifications are more experienced. His instructor when he was in flight school participated in the battle in Annan, so he can still remember some key points at this time. No matter how shabby an airplane is, it is still a titanium or aluminum alloy box, which is much stronger than the human body when faced with debris flying all over the sky. There is a lot of explosions going on outside right now, and popping it out is a sure way to die... Fortunately for the two of them, the anti-aircraft guns on the ground that had been in service for almost 40 years, even though they had been urgently maintained after being dragged out, were equipped with old ammunition that was also old and could only dispersion. It''s pretty unsatisfactory. Hence, after the explosion, the riddled aircraft still maintained its most basic structural integrity. ??However, it has also begun to enter an uncontrolled spiral. ??The two pilots quickly pulled the ejection handle between their legs and were thrown into the night sky in an extremely awkward posture. This all sounds long, but in fact, only half a minute has passed since the first shell exploded. Not far away, the crew members of EA6B also recovered from the initial shock. The co-pilot almost hurriedly switched the radio to the frequency for contacting the aircraft carrier and shouted loudly: Echo 01 calls the Roosevelt! Echo 01 calls the Roosevelt! AV12 is hit by anti-aircraft fire! AV12 is hit by anti-aircraft fire! The plane is burning and we cant see if the pilot successfully ejected! ??The authorities were blind to the onlookers. Although it was night, he could clearly see it from outside. It was a dense barrage fired by anti-aircraft artillery. ?At the same time, the pilot, who was worried about being attacked by the same attack, also quickly controlled the aircraft to make an emergency climb. Echo 01 currently only carries an anti-radiation missile, so there is no good way to deal with it. However, the threat of anti-aircraft artillery to maneuverable tactical aircraft is very limited, as long as the route is not too rigid. ?God knows how the other party happened to capture the time window when the Spirit of Kansas was climbing and turning. The content of their call was obviously so shocking that the radio was silent for a few seconds before responding: Were you being attacked? Or... Obviously, the command staff on the Roosevelt still did not fully realize the seriousness of the situation. AV12 was hit! Its falling! ??The impatient co-pilot interrupted the other party directly and repeated the current situation. ?At this time, the other party finally reacted: Please report the location where AV12 was hit. Their echo signal cannot be seen on the radar. We are coordinating the combat rescue team..." The voice can be heard to be obviously trembling. Even for the US military, this kind of mission spanning three services is not easy to coordinate, especially now that there is a big mess. Furthermore, the B2''s stealth performance is fair to both friendly and enemy radars... The crash location is...in the 100 direction of our aircraft, about 2.5 kilometers away..." The night sky in the Balkans has now returned to silence, and the crew members of Echo 01 can only report a general direction based on estimates: In addition, there should be an anti-aircraft gun position near the crash site, and subsequent air power and search and rescue teams must pay attention..." Actually, Echo 01s worries are a bit unfounded. ?After completing the half-minute round of short firing, Lieutenant Colonel Danny did not even have time to confirm the results of the battle, and commanded his men via remote control to quickly pack up their positions and prepare to evacuate. ??The U.S. militarys air defense suppression operations must be respected. ??The position squeezed among the ruins of the building must have been too late to move. The only way to do it was to put on a hasty disguise and evacuate the people quickly. In any case, the most important thing in this battle are the two passive detection radars that do not emit any signals throughout the entire process. There is no need to force the remaining things, and they will be gone if they are gone. But the hundreds of experienced veterans under his command must be preserved. ?There is still a battle to be fought later. Battal Commander! At this moment, the staff officer outside the command cabin suddenly poked his head in: Hit! We hit! Danny was stunned for a moment after hearing this, then put down the walkie-talkie and almost stumbled to the outside of the command cabin - ?Just in the direction where he had just directed the anti-aircraft artillery group to fire, a flash of fire was falling towards the ground at an almost vertical angle... This...can really hit... ?Danny muttered to himself in disbelief. After all, this was his first battle using the new radar and anti-aircraft artillery linkage, so he actually had no confidence. When the order to fire was just given, the expectation in my mind was that I would be satisfied if I could injure the target. The result was a big one. As he watched, Danny felt that his vision was a little blurry. As an air defense force commander, although he achieved a world-renowned result at the beginning of the Allied operation, for more than half a month after that, he could only watch the opponent''s planes coming and going above his head. He was free to ravage the land and people he had sworn to protect. All the shame and grievances in it were finally released at this moment... The younger staff officer next to him had a much simpler idea. ?Looking at the slowly falling fireball in the night sky, he could not hide his excitement in his tone: Battalion Commander, I feel that the movement this time... is bigger than the F117 we shot down last time... As soon as he finished speaking, a series of explosions came from the distant suburbs. As if verifying the statement just made. Danny, who was still immersed in emo just now, was also awakened by this huge noise: It seems...it is. ?Although it was hard to see clearly at night, the thing that fell just now was obviously much larger than a normal tactical aircraft. Bigger than F117but still a stealth aircraft The lieutenant colonels eyes suddenly lit up: B2 Wewe may have shot down a B2 After calming down the turbulent mood in his heart for a while, he turned to look at the staff officer who was still standing beside him: Quickly, notify the ground troops, assemble immediately, and control the crash point before dawn. Be sure to leave enough image data! Also, let each unit search within a limited range nearby to see if they can find something like a parachute, but they must return to concealment before dawn! Here is his quality as a veteran. He judged the priorities of the matter almost immediately As soon as daylight comes, ground force activities must be suspended. Under the premise of limited time, the location of the plane wreckage is relatively certain and can be found by sending people there, which also involves the authenticity of the record. ??As long as it can be confirmed that the latest strategic bomber has been shot down, the international impact may not be less than that of sinking a warship, which is of great significance to the current international outlook. Relatively speaking, the pilot is secondary. First of all, he didnt know whether the pilot had parachuted. Secondly, even if he had jumped, he didnt know where the pilot would float to. The efficiency of aimless search was very low. So the main thing is to try your luck, there is no need to force it. "yes!" ??The staff officer also woke up from a dream. He quickly raised his hand and saluted the lieutenant colonel, and then trotted away, preparing to go to the nearest army command post to seek support. ? After issuing this series of orders, the lieutenant colonel stood on the spot and took a deep breath. ?For him, this battle was originally a struggle without any hope. But at this moment, the situation seemed to have changed slightly. ??If you can achieve iconic results continuously, then you may not be able to let powerful enemies retreat in advance. Its just that he doesnt know it yet. Shooting down a B2 is indeed big news. But compared with another thing that happened tonight, it is almost nothing worth mentioning... (End of this chapter) Chapter 698 Did you really take down B2? Chapter 698 Did you really capture B2? Beijing time, April 18, 1999, 7:30 am. Chang Haonan, who had already flown to Jiangcheng, had just gotten up. After washing and having breakfast, he went to the workshop to continue checking the installation progress of the die forging press. ??Although Yan Yongnians ability in engineering is reassuring, he is after all the chief engineer of the die forging press project. Even if he has multiple positions and special circumstances, he cannot always control remotely from beginning to end. You have to come and see it both emotionally and rationally. ?However, before he could enter the construction site cafeteria, the cell phone in his pocket rang. In 1999, caller ID was already a relatively common feature on mobile phones. Chang Haonan was not short of money now, so naturally he couldn''t always use the one he bought first, so he took it out and immediately saw that it was Ding Gaoheng calling. of. Hello, Director Ding? He pressed the answer button. Xiao Chang, please go back to the capital as soon as possible. On the other side of the phone, Ding Gaoheng''s tone was more serious than ever. Chang Haonan had just gotten up. He was stunned when he heard these words. He took a moment to react before coming back to his senses: Okay, Ill leave now and try to get back before the afternoon. Unconfidential lines, or even cell phone calls, must not involve any substantive content. Ding Gaoheng didn''t even ask him to find a confidential line to call back, but directly asked him to return to the capital. It was obvious that something big had happened. It must be said face to face. So there is no need to ask. ?So, he immediately found Yan Yongnian, roughly arranged the work, bought two buns from the canteen, and rushed to the airport with Zhu Yadan to prepare for the return trip. Along the way, he naturally also guessed the purpose of Ding Gaoheng calling him back in such a hurry. ?But before he even got to the airport, there was no need to guess ?Perhaps feeling bored on the road, the driver casually turned on the radio in the car while waiting for a red light at an intersection. "Let''s go back to the situation in the Balkans. At 11:47 pm local time last night, a violent explosion occurred in a five-star hotel called Falkens. Some people familiar with the matter claimed that it was attacked by a precision-guided bomb, but it is still There has been no official statement on this incident..." "It is reported that Falkens Hotel is one of the most luxurious hotels in the area. The building is 19 floors high and has a rooftop with a wide view. Therefore, it has also become a filming location and residence for many front-line media to conduct on-site reports. When the explosion occurred , five international media are reporting that there are estimated to be about 190 people inside the hotel, including at least 120 foreigners..." The local rescue department has carried out cleaning and rescue work on the building ruins, but so far, no trace of survivors has been found For a moment, Chang Haonan''s mind buzzed and went blank. The driver and Zhu Yadan in the front row did not react at all. After all, for the two of them, or for most ordinary people in China, this was just an event that happened thousands of kilometers away and had nothing to do with them. The most I can do is scold Americans a few times. But for Chang Haonan, it''s a completely different story. He asked almost unconsciously: Yadan, whats the date today? April 18, the third day of the third month of the lunar calendar. ?Zhu Yadan turned back with some doubts: Whats wrong, Chief? "I" ?Chang Haonan''s lips moved slightly, and for a moment he didn''t know how to respond. ?Having just heard the news, his first reaction was Isnt the time right? But after thinking about it, it seems that there is nothing surprising. ?This matter should be closely related to Chinas support for the euro. The world today is very different from the previous life, so it is natural for there to be differences in the time when a specific event occurs. After thinking through this level, Chang Haonans next thought was ?So what happened to the Falcons Hotel? He had no map and no memory of the name. But it is certain that the entire Allied operation, and even the entire timeline, has changed as his influence has gradually increased... ?The news on the radio cannot be very rich in content, and if you calculate it, it was 11:47 local time last night, which is 5:47 Beijing time, and only a little more than two hours have passed until now. ??And its still early morning locally. Leave him alone, there is probably a lot of information that even the countries involved themselves are not clear about. So even Chang Haonan couldn''t guess more details. All we can do now is wait... Five hours later. Chang Haonan, who had been worried all the way, didn''t even bother to wash his face. After getting off the plane, he immediately transferred to a special car that had been waiting at Xijiao Airport and went directly to the third door. Such a big matter is impossible to discuss at the level of the Science and Technology Commission. Wandering around, he was finally brought to the door of an office that was not too inconspicuous. After opening the door, several leaders in military uniforms were already sitting inside. On the curtain hanging opposite, a map of the city is displayed. "Report!" Facing such a group of big guys who have at least two wheat stars, you still have to behave more seriously. While speaking, Chang Haonan glanced around and found that there seemed to be no acquaintance except Ding Gaoheng. Fortunately, everyone has their name tags in front of them, so its not like they are blind. ?But it makes sense to think about it. At this time, the bigger leaders are probably busy calling international hotlines. The head of the conference table was empty. Fu Quanyou, who was sitting first on the left, raised his head and looked at the door: Its Comrade Chang Haonan, right? "yes!" ?Chang Haonan answered simply and neatly. Come and sit. Fu Youquan pointed to an empty seat opposite and said. There is no name tag of Chang Haonan, so he was obviously invited to attend temporarily. You must have heard about what happened in the Balkans last night, right? ?The other party gets straight to the point. "Yes." Chang Haonan nodded: There was an explosion in a hotel, but when I listened to the radio, they said there was no investigation result yet. Fu Quanyou nodded and looked at the curtain on the side: Its already there. Rescuers found three unexploded GBU31 satellite-guided bombs under the rubble, and Having said this, he picked up the remote control next to him and pressed it. The projection then switched to another screen. A mass of dark ruins. Moreover, it has been confirmed that the US military was shot down a B2 stealth bomber last night local time. Chang Haonan was overjoyed when he heard the news. He almost jumped up from his stool and blurted out almost without thinking: "real?" He had spent so much time building a multi-point passive detection system, and this was what he was looking forward to. But expectations are expectations and reality is reality. ??As to whether B2 can be defeated, in fact, even Chang Haonan himself was not sure before. Now I finally have a sense of solidity that the dust has settled. The news photos have been released, how can they be fake? ??Although Li Yongjin, who was wearing an air force uniform next to him, had a tense face, his tone when he spoke was almost like Chinese New Year. It was obvious that he was already happy in his heart, but he was restricted by the occasion and could not express it: "Although the wreckage was badly burned and was later specially bombed, the appearance characteristics of the flying wing are too obvious. Looking at the outer wing section and the W-shaped trailing edge of the tail part, it is impossible to find a second type that matches the models with these characteristics. ?Chang Haonan admitted that at that moment, his heartbeat was unsatisfactory. Spotted byour radar? He still felt a little unsteady and unreal. If I must tell you, this is the other partys military secrets, so I dont know yet. ?Li Yongjin can hardly hold back his expression now: But considering the actual situation, it is basically certain that the technical equipment and tactics we support were used. (End of this chapter) Chapter 699 It’s all messed up, it’s all messed up (counting yesterday’s events) Chapter 699 Its a mess, its all a mess (counting yesterdays events) Thats really great ?The entire conference room was full of people who knew everything about him, so Chang Haonan didnt need to pretend to be ignorant: This is definitely breaking news Actually, it is very gratifying for everyone here to see Americans being defeated, especially because of their own efforts. It''s just that everyone was holding it just now, and no one was too embarrassed to mention it. As a young man in his twenties, Chang Haonan does not have this kind of baggage and is very suitable to warm up the show. ?Hence, as his words fell, the originally deliberately tense atmosphere in the entire conference room instantly became a lot more cheerful. Especially the expressions of several of the air force leaders can be described as... Police station, two policemen, I think of happy things.gif "yes" Sitting directly opposite Fu Quanyou, Liu Yaoshun, who is in charge of the entire air force, tried hard to control the smile on his face: "The B2 bomber has only been in service for two years. It has been promoted intentionally or unintentionally as an all-powerful door-kicking weapon. However, it was shot down by an anti-aircraft gun half a century ago. It is a big setback. Im so embarrassed in front of you! After speaking, he looked at Chang Haonan again: "Unfortunately, the nature of this matter is different from that of the previous bat hunting operation. In a short period of time, I am afraid that even an internal commendation meeting will not be held...So we can only indirectly reward our great heroes in other ways... " The latter took so long to set up this situation, naturally it was not just for the sake of fame, and he immediately waved his hand to indicate that it didn''t matter. We can talk about rewards later. What is more important now is the subsequent development of the matter. ??Moreover, the work done this time is really too harsh. If the role played by Chang Haonan is exposed, there is no guarantee that the other side will not become angry and take some revenge. This is why he did not even directly participate in the negotiations between China and Europe before. Making a fortune in silence is a sign of humiliation. ?However, at this moment, there was a sudden sound of electric bells outside. ?It is impossible for anyone to enter a top-secret meeting room like this even if it is idle. ?Even the cleaning staff must have a high security level. Not to mention that there are a group of important people sitting inside now. Fu Youquan turned his head and glanced at the CCTV behind him. After confirming the identity of the visitor, he pressed a button. Soon, a staff member in black walked in and handed a bulging document bag with a seal in his hand to Fu Quanyou: Chief, this is the information just sent from the Second Bureau, please take a look. After finishing speaking, he turned around and left quietly. The Second Bureau of the General Staff is a unit specifically responsible for collecting and analyzing intelligence from foreign public information sources. It is only responsible to the Chief of General Staff and higher-level leaders. ?The other people sitting in this conference room right now, even if they are on the same level as Fu Quanyou, cannot be considered leaders of the Second Bureau staff. ?Fu Youquan quickly tore open the seal and took out a pile of newly printed documents inside... Hours ago. On the other side of the world, in Arlington, Virginia. Henry Sheldon stood up, put on the coat hanging on the back of his chair, and prepared to leave the office. But as soon as he reached the middle of the office, he stopped. After hesitating for a while, he returned to the desk, took off his coat again, hung it back on the back of the chair, and then raised his wrist to check the time. ?It has now been almost 15 hours since the Spirit of Kansas bomber took off, and the mid-air refueling process has been successfully completed. According to the pre-planned time, the results of the air raid should be reported back at this time. ?Sheldon is not worried about whether the mission itself will be successful In his opinion, or in the opinion of all those familiar with the matter, taking off a state-of-the-art stealth strategic bomber across half of the globe to bomb an opponent with weak air defense under the cover of complete electronic warfare is a sure win no matter how you look at it. What he is worried about is the possible subsequent reactions to this crazy plan. At the time, no one in the Oval Office had thought about what would happen after the air raid. After all, it was not a carefully thought-out decision, just a hysterical impulse. However, as the leader of the Joint Chiefs of Staff, he has to think about it. ?Although theoretically speaking, the Joint Chiefs of Staff and the Air Force are only the final executors, and at least they should not bear the main responsibility for any consequences. But in fact it is obviously a different matter. To put it bluntly, if the S3 season really starts, we wont have to wear military uniforms to fight in the end. Since the Civil War, the Shelton family has served in the U.S. military for five consecutive generations. They are a typical military family and are not afraid of going to the battlefield. But we cannot go to war in such a hazy manner. Thinking of this, he lit a cigar, hoping to calm down his mood a little. But the usually rich and pure taste and delicate smoke lost their allure, and after only two puffs, it was thrown back on the cigar stand. ?Just when Sheldon stood up again and was about to go to the Air Force Ministry to see the situation, there was a rapid and chaotic knock on the door outside. "Come in!" He sat back in his chair, took a deep breath, and tried not to look so agitated. Don''t lose your grace in front of your subordinates. ?However, the next second, the office door was pushed open, and the secretary almost stumbled in. "General Sheldon, we...we..." ?The subordinate''s slightly panicked performance made Sheldon''s heart sink. ?His secretary is someone who is used to seeing big scenes. He looked so lost and lost. It was obvious that he had received some huge shock. ?However, Sheldon told himself that at this time, he had to stay calm. Dont be in a hurry, speak slowly, the sky will not fall ??However, the first words the secretary spoke made Sheldon almost lose his success: General, the USS Theodore Roosevelt reported that our bomber on a mission was shot down. The latters arms trembled obviously: The bomberis It was the USS Spirit of Kansas. A Marine Corps EA6B saw it with my own eyes. It was hit by a round of covering anti-aircraft fire and then crashed. The secretary''s voice was trembling. As mentioned before, although he had been on tenterhooks in the past dozen hours, he had always been thinking about how to calm down the subsequent storms after the successful bombing. He had never considered "losing a B2 bomber." possibility. The huge psychological impact made Sheldon, who thought he had seen too much, not know how to reply for a moment. The F117 was shot down before, which already put him under a lot of pressure from public opinion. ??The press release given to the media at the time stated that the F117 was already equipped more than ten years ago, and the military now has more advanced models, so there is no need to worry about the technological leadership being broken. ?That "more advanced model" is naturally B2. ??As a result, there has been a wave of publicity with gongs and drums, and less than a month later, the new model that has just been promoted to the altar has also suffered losses... You must know that if the myth of B2 is broken again, the US military will no longer be able to come up with updated equipment. F22 has not yet entered service, and the JSF project has only just begun. And if the military myth goes bankrupt... Sheldon couldn''t imagine what would happen next. Wheres the wreckage? And the pilot? He asked quickly. The secretary naturally understands the meaning of his leader: The location of the pilot has been determined and search and rescue operations are currently underway. As for the wreckage...the Navy has dispatched an aviation squadron to search the reported crash area. Once found, it will be further destroyed. Sheldon didn''t even know if he should be relieved. ?Although he is from the Army, based on experience, it should be difficult for an aircraft wreckage as big as a B2 to be destroyed to the point of being completely unrecognizable. ?However, the secretarys next words quickly made him give up on this issue. Andand Sheldon frowned and glanced at the secretary who was hesitant to speak: Having said that the bomber crashed, what could be worse? ?He picked up the cigar on the table next to him and took a long puff: Say it! General, although there has been no official confirmation of the bombing results yet, based on intelligence gathered from the front and from many sources in Europe The secretary even stuttered when speaking: The bomb we dropped may have hit a hotel where a lot of media are stationed The cigar in Sheldon''s hand fell to the ground. ?There was only one thought in his mind at this time: The sky is falling (End of this chapter) Chapter 700 The internal strife cant be fought anymore. Chapter 700: Internal strife, cant go on anymore... Silence. An oppressive silence. ?Two people, one dared not speak, the other could not speak at all. For a time, the huge office was quiet except for the humming sound of the air conditioner outlet. ?However, Sheldons ears were still echoing what the secretary had just said. Originally, the United States and the European Union were already very unhappy because of the Euro issue. ??If this news spreads now, how the Allied operation will end may be a problem. As for himself, he can probably start summarizing his career directly. Sheldon has been in the army for forty years and thinks he is used to all kinds of ups and downs, but... Upon seeing this, the secretary quickly handed the cup on the table to Sheldon''s hand. "The only information that can be confirmed so far is that the building was severely damaged. Except for part of the auxiliary building, it almost completely collapsed. The countries involved, such as Britain, France, Germany, and Italy, have not yet figured out the ins and outs of the matter. Only our military intelligence department based it on It is estimated from the time of the explosion that it should be the bomb on the B2..." Sheldon breathed a sigh of relief. As soon as the first word came out of my mouth, I found that my throat was as dry as sandpaper, and the sound I made was comparable to scratching a blackboard with my nails. "In this case" As long as there is no direct evidence to prove it, it is not difficult to confuse right and wrong. ?But thats not important. This I dont know yet. ?According to the plan, all aerial activities tonight must make way for stealth bombers, so the bombing can only be carried out by GBU31 from the Spirit of Kansas. The situation seemed not as bad as he had just expected. So he quickly asked: "have" ??The latter drank a few sips of water and finally recovered a little. Although he was still hoarse, his words could be understood by ordinary people. Hello, this is the Joint Chiefs of Staff. ?As long as you can find a superficially justifiable reason to silence the public and avoid boiling public dissatisfaction. Is there any very clear evidence? Although for an expert, even dozens of continuous rods or fragmentation warheads of anti-aircraft missiles cannot produce the effect of an aerial bomb when the fuel is exhausted. For example, it can be said that the anti-aircraft missile missed the target and then fell down and hit it by chance. I have never seen this scene before.jpg I dont know how much time passed, but Sheldon finally felt that his consciousness, which was about to leave his body, returned to his body, and his brain gradually regained control over the muscles in his body. Under normal circumstances, six bombs are enough to blow up an ordinary building until nothing is left. Moreover, the prototype of GBU31 is the MK84 aerial bomb. Its charge coefficient is far higher than that of missiles or artillery shells. It rarely leaves complete wreckage after the explosion. The secretary shook his head: ?But halfway through speaking, the phone on the table suddenly rang. Yes, I already know... Okay, lets go right away The call lasted less than a minute, and it looked like it was coming from the white house. "I''m going to hold an emergency meeting. You go and notify the press department. Temporarily prepare for the hearing by condemning the opponent''s inappropriate firing of anti-aircraft fire. However, no one can make any clear statement before receiving clear notification. Do you understand?" ?After Sheldon gradually regained his composure, the secretary seemed to have a backbone, no longer the lost look he had when he first came in: Understood, Ill get ready right away. After saying that, he turned around and left the office quickly. ?After confirming that the secretary''s back disappeared from the door, Sheldon bent down to pick up the unburned cigar from the ground, and put it back on the cigar stand with force of composure. ?He took a few minutes to calm down and got up to prepare for the meeting. ?However, the moment he stood up, the phone on the table rang again. Ill be right away ??He thought it was a call from the White House urging him to take action, but his secretary''s voice came from over there. General Sheldon, the news just came back from Europe. ?The other partys tone returned to the panic at the beginning: It was said that the other partys ground search and rescue personnel found three unexploded bombs under the ruins, confirming..." Sheldon gradually became unable to hear the following content. He only felt a dizziness..."Plop-" The whole person fell back on the office chair. ??The coat and phone receiver he just took fell to the ground. ?Although the lights in the office are bright, the eight silver stars on the shoulders seem to have lost their former brightness. General...general? ??The secretary''s anxious voice kept coming from the receiver, but there was no response from the other side... Go back to the conference room with three doors. Fu Youquan read the intelligence documents in his hand as quickly as possible, raised his head again and looked at the people in front of him, his expression became serious: The reactions of various relevant countries to this matter have basically been clear. He paused. ?But no one answered. What deserves the response of "each" country is obviously not a "little thing" like the B2 being knocked down. ? And what is worthy of being written into intelligence documents is obviously not the public attitude of various countries. In fact, regarding this extremely complicated situation, everyones immediate external stance was basically based on nonsense literature. ??The country concerned made harsh remarks and stated that it would investigate the matter thoroughly, while the country not involved expressed regrets and hoped for world peace. But its certainly not that simple inside. Sure enough, Fu Quanyou continued: First of all, there are some unofficial sources that believe that the explosion may have been caused by anti-aircraft ammunition that had exhausted its fuel. After saying this, everyone present, including Chang Haonan, was immediately shocked I know you are a shameless bald eagle, but to be so shameless is really eye-opening. Ding Gaoheng sat up straight and was about to say that this was technically a fantasy when Fu Quanyou reached out to stop him. The latter continued: But someone took a set of clear photos of the three bombs that did not detonate. The marks on the missiles clearly showed that they were MK84s equipped with satellite guidance components, which are GBU31 bombs. Not long ago, this set of photos has been passed on by us through a special liaison mechanism to several European media that we have cooperative relations with, as well as the leaders of the countries involved. The expressions of everyone who were full of displeasure just now turned to surprise. In this case, wouldnt it be... Liu Yaoshun''s tone was a bit unbelievable. Thats right. Fu Quanyou nodded: The companies that have moved the fastest have already published their articles. Now, even if those European countries want to swallow this dumb loss, they cant. Therefore, nearly ten European countries have decided to suspend their participation in allied operations, and this news will be disclosed at a press conference this morning local time. At this point, he finally put down the first document in his hand. No one answered the call. The conference room was as quiet as Sheldon''s office was a few hours ago. But under the same appearance, there is a completely different atmosphere. The Chinese side was completely overjoyed. Before today, let alone other people, even Chang Haonan had never thought that such a good thing could happen. ?Although there are 13 participating countries in Operation Allied Forces, most of them are actually in name only. Only five or six of them are really useful. You must know that only one aircraft carrier was dispatched this time, and most of the aircraft were stationed at land airports in surrounding allied countries. ?For example, the Aviano Air Base mentioned by Fu Quanyou just now provides almost a quarter of the sorties. ?Now the core participants have withdrawn by more than half, and it is estimated that it will be a matter of time for the British - Even if they have a conjugated father-son relationship, the impact of this incident is so severe that it is completely unjustifiable not to react. ?This does not take into account the subsequent series of disputes such as claims and apologies. Overall, this Allied operation Im afraid it wont be able to sustain itself. (End of this chapter) Chapter 701 Believe me, it’s a coincidence! Chapter 701 Believe me, what a coincidence! When everyone was silent. The door of the conference room was suddenly opened. There is only one situation for opening the door without notification. That is, a higher-level leader will come over. ?Chang Haonan stood up together with everyone and glanced at the door. Cant recognize And have a military rank. Obviously not a big leader. Mr. Zhang, you are here. ?However, Fu Youquan''s name for the other party made Chang Haonan immediately think of this person''s identity. ??Having achieved great fame in southern Xinjiang, he is considered a famous general in our army. He was still wearing a military uniform. He had obviously just finished a formal meeting and came over without even having time to change his clothes. Lets all sit down. Lao Zhang went straight to the head of the conference table and sat down, then took off his military cap and placed it neatly on the table in the front left. After everyone sat down, he saw a somewhat unfamiliar young face in the conference room. ?But then I realized that I had seen it in photos. Thisshould be Comrade Chang Haonan? Reporting to the chief, I am Chang Haonan! Chang Haonan stood up again. Although his stance is not very standard, he is not a soldier after all, so he can do whatever he wants. Lao Zhang raised his hand and pressed it down: Internal meetings dont need to be so formal... After Chang Haonan sat down again, Mr. Zhang spoke again: Everyone must have seen the news from the Second Intelligence Bureau just now, right? "yes." Fu Youquan nodded: Before you came, we were just talking about this matter. Any ideas? While asking questions, Mr. Zhang opened the notebook he carried with him. No one spoke immediately, but looked at each other for a few times. Actually, everyone was still in shock just now and did not have time to exchange their opinions. but. Silence sometimes represents an opinion. So, it was Fu Youquan who concluded: "The comrades'' view is that the Allied operation should end in an anticlimactic manner. After all, without the support of European countries and relying solely on the US military itself, it will be very difficult to continue to promote it. At least for now, there is only one Roosevelt Its impossible when the aircraft carrier battle group is nearby. Furthermore, this incident, together with the previous conflicts over the euro exchange rate, is very likely to trigger a general rebellious mentality against the United States in Europe, especially in continental European countries. The international situation we will face in the future may also be further affected by this. improve." Mr. Zhang listened and memorized at the same time, and he was able to keep up with Fu Youquan''s speaking speed: Other comrades, do you have anything to add or have any questions? There is nothing more to add. A naval leader saw no one responding, so he took the lead and said: Its just Mr. Zhang... The hotel was attacked this time, which always makes people feel a little weird..." "Logically speaking, the locations of these targets are completely public. JDAM bombs only need to enter the coordinates to carry out precise strikes. It doesn''t matter if only one or two have problems. Now that six of them hit together, it is impossible to lose them all. The coordinates are wrong, but...it cant be that the Americans are deliberately trying to undermine themselves, right? ?His question obviously represents the aspirations of many people - Although the people sitting here are all our own people, the level of confidentiality is sufficient. However, a sufficient level of confidentiality only means "can" know. There is so much new confidential information generated every day that it is impossible for leaders whose business scope is not related to be informed of everything. So its normal to feel confused. ?Including Liu Yaoshun, who was in charge of the Air Force, they only knew that the shooting down of the B2 was probably related to the radar and anti-aircraft gun fire table that had been sent over previously. But as to why a strategic bomber should be dispatched to bomb allies... It is also puzzling. "This question... there is a comrade here who is more qualified to answer than me." A rare smile appeared on Zhang Lao Gujing Bubo''s face, and then he put down the pen in his hand and looked up at Chang Haonan: Comrade Chang Haonan, can you explain your work to us? As soon as he finished speaking, about half of the eyes in the conference room turned to Chang Haonan. Even though the latter was used to seeing big scenes, it was indeed the first time for him to be stared at by almost twenty gold stars in total. ?Therefore, after he calmed down for a while, he opened his mouth to explain: "In the past few years, I and several other technicians have designed a set of electronic warfare equipment that can directionally interfere with the operation of satellite positioning systems. The original intention is to provide protection for important fixed targets such as cities, command institutions, and troop assembly areas, so that they can from cruise missiles or satellite-guided bombs. However, after the development was completed, we found that this equipment required a GPS military receiving module for translation, so it was impossible to mass-produce it. In the end, only two prototypes were completed and transferred to the technical reserve. "Later, considering that this equipment has no offensive properties and is a low-sensitivity self-defense equipment, at the suggestion of Director Ding of the Science and Industry Committee, the superiors approved the deployment of these two prototypes in high-risk areas to protect our country''s important local sites. facility." And in the process of Allied Operations, it was put into practical application for the first time... In this case, Chang Haonan was naturally concise and concise, skipping all specific technical details. ??And when he reached the end, the dozen or so eyes that focused on him had changed from puzzlement at the beginning to disbelief. ?Especially the naval leader who asked the question just now was confused at first, then confused, then shocked, and finally dumbfounded. "so" He hesitated for a moment when he said this, as if he was worried that he was being a little too exaggerated. ?So he secretly took a look at several colleagues around him and found that there seemed to be a few like him, so he calmly continued: So all this...we...planned it in advance? As soon as these words were spoken, the other twenty or so Venus immediately turned their attention to Chang Haonan. Ive been meaning to ask just now. Ding Gaoheng also said immediately: Xiao Chang, did you calculate this before? When we first made the plan, this part of the plan didnt seem to be included Chang Haonan quickly shook his head: Dear leaders, this is purely an accident... Then he turned his attention to the map projected on the curtain next to him: "Originally, if the preset algorithm one is used, the GPS-guided weapon will be directed to the open space on the river beach farther away. If the preset algorithm two is used, the GPS-guided weapon will be directed further to the river on the other side of the river. in the park." "But I just did some mental calculations. These GBU31s are not equipped with extended-range gliding kits. If the throwing height is not high enough, then... there should be no way to deviate from the preset coordinates that far away, so they hit the magic weapon in the middle. Above Kens Hotel ?This is definitely not how noble Chang Haonan''s morals are. In fact, if he had known that there was such a hotel full of Western media, there is a high probability that he would have specially modified the algorithm to lure the bomb here. ??However, the algorithm was designed almost a year ago. It would be amazing if it could be calculated in such detail... So I just found the nearest open space on the map to reduce collateral damage as much as possible. After all, even with the best expectations, I never expected to be able to stop the Allied operations. I just had the mentality of redeeming the regrets of my previous life... ?However, his explanation is obviously a bit weak in the face of other people''s imagination. The eyes of all the big guys all mean "we all understand". Comrade Haonan, dont feel any psychological burden. Mr. Zhangs temperament was originally calm and intimidating, but at this time he tried very hard to make a kind expression: "To put it bluntly, this matter is the fault of the country that launched the Allied Forces operation. Those media gathered at the Falkens Hotel not to report the facts objectively and impartially. What ultimately led to this disaster was the bomb dropped by B2, so , neither I personally nor the superior organization will think that you have any moral responsibility..." Hearing this, Chang Haonan was a little moved at first. ?But only halfway through being moved, I realized something was not right. ?This doesnt seem to be entirely comforting But he didnt take his explanation just now seriously... "Chief, I understand what you mean, but I must have something to say to the organization. This time it was really unexpected..." Mr. Zhang did not continue to persuade, but just nodded: "Today''s meeting will not keep the original records. All of the people here are experienced comrades and will not talk nonsense outside. So Xiao Chang, you can rest assured that this matter will be recorded as an accident. I will personally sign and seal the relevant files. At least 50 years! Obviously, although he agreed with Chang Haonan''s statement, he still didn''t believe it in his heart. "I" ?Chang Haonan finally decided to give up the struggle for the time being... (End of this chapter) Chapter 702 Ninth Security Bureau Chapter 702: Ninth Security Bureau ?Seeing that Chang Haonan no longer struggled, the topic of GPS jamming equipment came to an end. After all, there is still an issue that everyone is most concerned about that has not had time to discuss Fu Youquan had received several documents before. Before Mr. Zhang came in, he had actually only read the first one about the reactions of EU countries. But...could the core of this matter be in Europe? ?Thats definitely not the case! So, someone soon asked: "Mr. Zhang, since the truth of the whole matter can no longer be concealed, then... I wonder how the Americans will react?" "Is it an open channel? I haven''t made a statement yet. I just said that the White House still doesn''t know the ins and outs. It is properly investigating everything that happened last night and promised to give an explanation to European allies and the people." ?This statement is definitely nonsense. After all, everyone sitting here already knows that the Americans must want to retaliate because China supports the euro, but the bomb was deflected by the mysterious power of the East. ?However, it is understandable that in order to delay time, this is the only last resort. ?The main thing is that there is no way to explain it at all. Just imagine- : "Big boys, I was not careful this time." Ou: "Ah, yes, yes, you were careless, you were careless on purpose, right?" Me: "Believe me, it was really unexpected. We were originally planning to attack other targets, but for some reason, the bomb deviated from the planned coordinates..." Ou: "If that''s the case, tell me, where were you planning to blow up?" I You are joking, let alone admit it, okay? Its a complete dead end. ?So, even if Americans are experts at making excuses, they may not be able to think of a reasonable reason at the moment. I guess they will have to throw out a scapegoat in the end, otherwise they wont be able to pluck them all out Liu Yaoshun, who was sitting aside, speculated: According to the command structure on the opposite side, the Secretary of Defense and the Secretary of the Air Force definitely do not have direct command authority. From this point of view, the most suitable person to take the blame should be the leader of the Joint Chiefs of Staff, or the Chief of Air Force Operations..." Speaking of the leadership of the Joint Chiefs of Staff. The muscles on Mr. Zhangs face were obviously twitching, as if he wanted to smile but was too embarrassed to do so: Actually, according to the original plan, I should be on the phone with General Henry Shelton of the Joint Chiefs of Staff. But after the call was connected, I learned that Sheldon had suffered a heart attack a few hours ago and was hospitalized..." ?Chang Haonan swore that he heard more than one person laughing at that moment. Speak of it, Comrade Gao Heng. After a relatively relaxed conversation and laughter, Fu Youquan turned his head and looked at Ding Gaoheng, who was a few seats away from him: The value of Comrade Chang Haonan is obviously far greater than that of the general person in charge of a second-level state-owned enterprise. I think no one has an opinion on this, so regarding his safety..." ?Although Mr. Zhang just said that relevant files will be sealed for more than half a century, this measure can only protect the details of the incident. ?As the leader of the General Staff, Fu Youquan participated in almost the entire decision-making process of putting jamming equipment and new passive detection radar into use in the Balkans. He knew very well that there were too many links involved in the whole matter. Even if some cover-ups were made in the middle, such as deliberately directing the spearhead towards the Russians, this method could deceive the Americans for a while but not forever. Looking back, I can definitely see that something was wrong. Of course, there is another layer of insurance here, that is, there are no more than one person who knows that Chang Haonan is not only the developer of the technology, but also the proposer of the plan. Including when he just introduced the situation, he also took full credit for proposing the plan. It was settled on Ding Gaoheng. So there is still a distance between "realizing that the matter is related to China" and "realizing that the matter is related to Chang Haonan". But considering that the other side has no precedent of attacking technical personnel, it is always right to be careful. Ding Gaoheng also returned to his usual serious expression: "Some time ago, I asked Xiao Chang to move his residence to the residential area for senior cadres of ministries and commissions, not far from my home. In terms of travel, because the Challenger 601 of the 34th Division is too small, it has basically always been Xiao Chang''s residence. If only one person is using it, there will be no problem in both aspects. He only travels short distances every day and only has one guard with him. I can add a few more people after I return..." Mr. Zhang, who was sitting at the head of the table, was experienced in this field and immediately waved his hand: Gao Heng, your thinking is not quite right. "Unless there is a complete security force, the core function of the security guard is to avoid accidents, such as encountering criminal cases while walking on the road. If you really encounter an organized assassination, the difference between one and two or three Its not big at all, so increasing manpower is only one aspect. The key is to prevent the protected persons movement trajectory from being located. Ding Gaoheng has a technical background and has never done any research in this area. The previous security guards assigned to Chang Haonan also copied the treatment he and other colleagues had received in the past. However, the place where two bombs and one satellite are built is completely closed to the outside world, which is completely different from the situation in Beijing. Then Mr. Zhang, what do you mean Assigning a few more cars, especially a few more sets of license plates, is much more useful than sending two more people. Lao Zhang immediately replied: Also, the daily itinerary, especially the route, should not be set in stone. After the meeting, you can ask Youquan to find the responsible comrades of the Ninth Public Security Bureau to do these things. Chang Haonan himself was shocked when he heard this arrangement. ??Although the Ninth Public Security Bureau has the name of public security, this is completely a legacy of history. In fact, it has nothing to do with the public security. It is an agency directly under the General Staff and is only responsible for the security work of the core areas and institutional leaders of the capital. Belongs to the innermost level of Ouchi guards. Thats fine, then Ill ask the special service to prepare for the handover after I get back. Ding Gaoheng naturally had no objection to this. After he took office as the director of the Science and Technology Commission, the Ninth Bureau was responsible for his own security. The reason why Chang Haonan was assigned special service was simply because he had no right to apply for the former''s transfer. Now that Mr. Zhang has endorsed it, there are no longer any authority issues. "Can." Lao Zhang acted vigorously and resolutely. He immediately nodded in agreement, and then turned to Fu Youquan who was nearest to the left: In addition, if Comrade Haonans current security guards work situation and background meet the requirements, and he himself is satisfied, he can ask the Secret Service to hand over the personnel and work together, and it will save the need to send new people to run in. After all, he is the second-in-command in the army. It only takes one sentence to transfer a captain-level officer from active duty in the public security service to the army. "yes!" Fu Youquans answer was equally straightforward and decisive. Okay, this matter is over, lets get back to what we just said. After finishing this little digression, Mr. Zhang took the pen in the middle of the notebook into his hand again: "You just discussed that the Allied Forces Operation is unsustainable and will end in a tailspin. After my report this morning, the superior leaders also made a similar judgment. At present, the core of our external relations is also We must strive to bring the outcome of the incident in this direction. "However, no matter how hard the fight continues, the United States is still the only superpower today. Even if it has a snake''s tail, it is a sky-swallowing python for the Balkans. If this tail is strong, it will still be unbearable. Therefore, we We cant just relax our vigilance, we still need to think about how to end it. It was Chang Haonan''s first time to participate in a meeting of this level. He thought that his role should have been played out, so he just continued to have fun. He also roughly understood what Mr. Zhang meant, that is, although Americans must have lost their reputation now, as the leader of the current version, even if they suffer a loss, they still have to live up to their reputation, so someone needs to give them a step up. The key is how to advance this step so as to maximize our interests. (End of this chapter) Chapter 703 Comrade, you saved everything last night Chapter 703 Comrade, you saved everything last night ?At the same time, the Balkan Peninsula, which has been engulfed in war for the past half month, has also entered the early morning hours. For the mid-to-high latitudes of the Northern Hemisphere, the effective sunshine duration reaches 15 hours in mid-to-late April. So during this time, even though the sun cannot be seen rising yet. ?But the sky is already dark. ?In the soft morning fog, a Wazi 469 off-road vehicle with a civilian license plate flashed dim fog lights and sped past on the empty street. In the co-pilot position, Captain Nikolai Barsak was holding a city map in his hand, and was not very skillfully directing a sergeant major next to him who was about to rub sparks out of the steering wheel: The one in front of you is wrong. Go to the right at the next intersection, and then go to the left immediately The old Jeep, which is nearly 20 years old, is swaying and looking like it might fall apart at any time. That is to say, it is still during the "night" control period, and the surrounding power plants and substation facilities have long been destroyed by bombs, so there are neither traffic lights nor traffic police on the street. Otherwise, you will probably be stopped if you go on such a rampage. In the past few hours, the sky above the entire city seemed to have exploded. At the beginning, the air defense forces, including Barsac himself, used ambush tactics and suddenly fired a half-minute burst into the air. As Lieutenant Colonel Danny''s confidant and white glove, the captain naturally fully understands the operating logic of this set of things, but understanding is understanding. Logically speaking, it is almost a millennium and we are still using large-caliber anti-aircraft guns for air defense. No matter how abstract you look at it, Even when he was directing his four cannons to fire, he felt that it was a bit too childish. As a result, they had just covered the camouflage net, and before they had time to evacuate the fighting position, they saw a huge fireball igniting in the mid-air in the distance, and then slowly falling. The anti-aircraft gun position and the command post where Danny was located were not at the same angle. In addition, the position was surrounded by ruins and the view was not very good, so he was not able to see clearly what he had shot down at the time. But since he used what he brought back, it must be another stealth aircraft. ??Barsak originally noted down the location of the crashed plane and planned to go there and have a look after evacuating the position. As a result, that round of artillery fire was like poking a hornet''s nest. He had just led his men to find the underground bunker for concealment. He didn''t even have time to take a sip of the hot water when he heard the explosions one after another around him. The radio and walkie-talkies were also gone. reaction, apparently experiencing strong electromagnetic interference. The captain was very courageous, otherwise he would not have taken on such a task with Wu Yifan before. However, being brave does not mean being reckless. Under the circumstances, he followed the lieutenant colonel''s request and hid in an underground bunker to rest. It wasnt until I woke up after sleeping for a few hours that the explosions and disturbances gradually disappeared, and the surroundings gradually returned to tranquility. But it was almost dawn at this time, and the Lieutenant Colonels previous order was for them not to go out during the day as much as possible. ?So Barsak struggled for a while. ?However, in the end, bold nature prevailed. On the one hand, I really wanted to know what I had shot down. After all, judging from the size of the fireball I saw at that time and the gorgeous show effects, it didnt feel like a mortal thing. On the other hand, I also find it a bit strange. Because after the previous wave of crazy and intensive bombing ended, nothing happened in the past few hours. There was no sound of anti-aircraft fire, no roar of aircraft engines, and no sound of bombs exploding. Since the Allied operation began three weeks ago, there has not been such a long period of silence. So, he entrusted the command of the troops to his deputy company commander, then took three of his subordinates, found an inconspicuous jeep with a civilian license plate, and prepared to take a look at the location he had noted down at night. Captain, we are the only car on this road, so we wont be targeted by planes... ??A senior soldier sitting in the back seat looked over and asked. He held an AKMS with the **** folded tightly in his hand, and pointed the muzzle out of the car window at all times, showing a vigilant look. However, in the face of an enemy who did not dispatch ground troops at all, this behavior would not only bring harm to himself. It obviously has no practical effect other than boosting courage. ??Barsac originally planned to comfort this subordinate, but after thinking about it, he decided to tell the truth: "I don''t know, but something is very wrong this morning. Logically speaking, at this time of day, bombs should have fallen." Could it be that there were too many planes dispatched last night and they dont have enough ammunition today, or the planes are being refurbished? ??A second lieutenant on the other side of the back seat also held the same rifle in his hand, but it was not loaded. He obviously knew that in the current situation, this thing was similar to a fire stick. ?Barsak shook his head decisively: If the opponent had to rest for such a long time before concentrating their operations, then we wouldnt have fought so hard..." ??The driver, who was looking at the road ahead attentively, also nodded in agreement: Thats right, we havent even reached the bottom of our ammunition, let alone the opposite side. NATO is so big that it cant even afford some ammunition and oil, right? As a captain officer, Barsak actually knows that there are not many anti-aircraft missiles left in his company, but this matter is a military secret and must not be talked about randomly. Moreover, the number of missiles is tight. In addition to randomly firing too many in the early stage, they have also been intercepted continuously. There are several ammunition depots, so what the sergeant major said is logically correct. "Anyway, there is no danger in fighting, but if I don''t go and see the results of last night, I would really feel uncomfortable...and no matter what the reason is, the other party has not been here for a few hours, so the risk should not be too great. big" ??Barsac didnt know whether he was persuading his subordinates or himself. Fortunately, the second lieutenant behind him changed the subject: Look, Captain, thats the position we were at last night. It seems to have been bombed... After hearing this, Barsak subconsciously looked outside and found that the pile of ruins that were originally used as a cover had now become more and more broken, and there were still green smoke rising in the middle. It had obviously been burned for a long time. , it just went out. He didnt know how the other party got here, but it looked like revenge. It doesnt matter, its just a few anti-aircraft guns. If we exchanged it for the plane last night, we would have made a profit no matter what. Of course the captain knew that they did not exchange a few anti-aircraft guns for one plane, but lost most of the city to exchange for a few planes. ?However, this is all I can do to comfort myself at the moment. Wait, why do there seem to be so many people and cars over there? ??The sharp-eyed private had been staring out the window, and suddenly found that the place a few streets away seemed to be full of people, and it didn''t look like there was a war at all. Maybe some building was blown down... At this moment, Barsak also remembered that before the unidentified plane was shot down last night, there seemed to be a violent explosion nearby, but when he thought about it, he felt that something was wrong. ??The reason why they originally chose this place as an anti-aircraft artillery position was because the nearby blocks are home to international organizations, foreign institutions and media, and the opponent''s air force rarely comes here specifically.????But why is there an explosion over there now... Ignore this, go to the place where the plane crashed and take a look first. ?Ten minutes later, the jeep parked next to the wreckage that had been surrounded by police cordon. ?There was not only a cordon, but also about a platoon of sentries with guns standing guard. ??If it werent for the large black pile of plane wreckage in the distance, Balsac would have thought he was back before the Allied operation began. Comrade Captain, please show me your ID! ??The lieutenant wearing a military police uniform stretched out his hand to stop the four people who had just got out of the car. ??Barsac took out the ID from the inner pocket of his coat and handed it to the other party. At the same time, he asked a little confused: Its already dawn, and youre standing guard here without any cover. Arent you afraid of being attacked by airstrikes? "you do not know?" The lieutenant looked up. What should I know? ??Barsac and his company hid in a temporary underground bunker for several hours. He didn''t even have a radio in his hand, and he had no idea what was going on outside. Air strikes have been suspended because There were too many things that happened last night, and not all of them can be talked about casually, so he got stuck in the middle of his words: In short, it should be relatively safe now, and this pile of wreckage is much more important than the safety of a few of us. After speaking, he lowered his head and opened Barsak''s ID for inspection. But I was stunned after just one look. A few seconds later, the lieutenant looked up again, his eyes full of shock. He raised the document and placed it next to Barsac''s face, apparently comparing the photo with the person. Whats going on? I am Nikolai Barsak, commander of the 1st Company of the 3rd Battalion of the 250th Air Defense Brigade. The photo was taken by me two years ago. I was still very thin at that time..." ??The military police lieutenant''s breathing became obviously heavier, and he seemed to be a little excited. Comrade Captain! He raised his hand and saluted Barsac: You saved everything last night! ?Barsak was a little flattered. After shooting down the F117 previously, the 3rd Battalion did become somewhat famous within the army, but it didn''t seem to be to this extent. But before he could react, the lieutenant returned the certificate to him, and then lowered his voice and shouted to the other two colleagues next to him: Look, its their troops who shot down this B2 last night! We did last night ??Barsac took the military ID card and was about to put it back in his pocket, but he got stuck halfway through the movement: Wait a minute...what did we shoot down? ? He ??then looked past the captain''s body and looked at the pile of wreckage surrounded by police cordons in the distance. ?Although it is completely broken into pieces, after what the other party just said... like It really looks like a flying wing bomber... Oh my God ??Barsak''s first reaction was to pinch his thigh hard to make sure he was not dreaming. "Can we... go in and have a look?" He asked tentatively. Of course, a lot of people have already come to see it. The lieutenant made way without thinking: Rather, I didnt expect that you would come so late to confirm the results of the battle... Barsac, who had just crossed the cordon, was embarrassed to say that he had fallen asleep, so he had to change the subject: Also...can you take some parts of the wreckage as a souvenir? ? He ??also knew that his request was a bit too much, but once the idea came to his mind, he couldn''t get rid of it. The lieutenant behind him hesitated: Of course not possible in principle Barsak''s heart moved when he heard this. Some things are the same all over the world. For example In principle, if its not possible, then its possible. Sure enough, the other party looked around warily: Comrade Captain, we are standing guard and havent seen anything. Please be more discreet... ??Barsac understood instantly and hurriedly ran to the wreckage and circled it twice, and then together with three other people, moved away the two remaining, relatively complete fragments... (End of this chapter) Chapter 704 windfall Chapter 704 Unexpected Harvest ??Barsac originally wanted to leave a shadow next to the wreckage. ?However, he didnt even have a radio in his hand, and naturally he couldnt have a high-end gadget like a camera, so he had to give up in the end. He just loaded the two B2 fragments into the trunk of the jeep as quickly as possible, then stuffed half a pack of cigarettes into the military police lieutenant as a thank you, and then asked the driver to drive away from this place of right and wrong. When I went back, there were gradually more cars and people on the road. ?Of course, it wont be a busy place, but at least its a bit popular. ?However, the four people in the car were still a little confused. I said, company commander. The sergeant major was still driving, but compared to the fierce rubbing of the steering wheel when he came here, his driving movements were obviously much more graceful now. At this time, he was holding the steering wheel with one hand and resting his other hand on the driver''s side. On the side window glass, second gear is hung and the accelerator is stepped on: Is this other party really going to stop fighting just because we shot down a stealth bomber? Barsak, who was in the co-pilot, was also confused at this time: "I don''t think it''s that simple. Didn''t the lieutenant just say a temporary ceasefire, so I guess... it''s hard to say what will happen next, so I have to be more careful when I go back, and take turns to go out to get some living supplies during these two days, just in case something happens later. If you fight, your life will be better. Actually, its not just them. Since water, electricity, communications and other infrastructure are in short supply, and European and American space assets such as communication satellites are obviously not open to enemy countries, so at this time, although the whole world is about to explode, the Balkans are the land in question. Most ordinary people still have no way of knowing the whole story. It can be regarded as a kind of sadness in a war-torn place... Anyway, we caught a big one this time. Its a pity that we couldnt take a photo just now. I told my mother that she might not believe it... ??The private in the back seat turned back and glanced at the two pieces placed behind him. The safety of the AKMS in his hand has been turned off, and he has changed from holding the gun with both hands to holding it in his arms. Company commander, what are you going to do with the last two pieces? ??The second lieutenant next to him, who was also holding a gun, moved his eyes quickly, obviously having some ideas. As an officer, he knew more about the enemy''s equipment and knew that the plane that was shot down last night was a treasure of only about twenty aircraft in total. The smaller piece was broken into pieces after we returned and was distributed among the comrades in the company as a souvenir. The larger piece was kept for me. I have other arrangements. ??Barsak''s mind flashed to the face of the suspected Buryat man who handed him the radar components and anti-aircraft gun operating manual. In fact, he still doesnt know where the businessman named Zamusu comes from, but thats not important. Being able to bring down this plane, the opponent and the forces behind the opponent made not only 100%, but at least 70% contribution. ??If you can survive until the war, it is very reasonable to reciprocate and give you some souvenirs. ?For this reason, when Balsac was picking out the pieces, he specifically found a part with the words "AF8901" on it, which looked like a skin somewhere. Although it is not the largest in area, it is the one with the clearest and completest preservation of text. It is obviously very appropriate to use it as a commemoration. I think this is enough for me to keep as a family heirloom ??The sergeant major in the driver''s seat also joked half-jokingly. However, at this moment everyone has relaxed. O Several gunshots suddenly came from a building next to the road. The four people in the car instantly became nervous. The second lieutenant behind him pulled the bolt with a clatter, and Barsak and the sergeant major also picked up an M84 submachine gun that could be operated with one hand from behind the door panel, which was their local copy. Vz61. Dont stop, speed up! ??Barsak''s first thought was to send special forces from the opposite side to **** away the wreckage. As air defense troops, they dont even practice shooting very much, so when encountering special operations, they naturally take the lead. But this idea only appeared for a moment and was denied by himself Such a big thing, obviously it is impossible to send a few special forces to completely move it away. ??And according to the lieutenant standing guard over there, foreign media should have already taken photos in the past, so it probably doesn''t make much sense to **** them back now. ?Thinking of this, he quickly pressed the drivers shoulder again: Wait a minute, slow down, slow down and check the situation! ??The 20-year-old manual transmission car could not withstand such changes every day, so it naturally turned off in the middle of the road. The sergeant major knew that it was okay to slow down at this time, but stopping would still be too fatal, so he quickly started the fire again. But at this moment, a figure holding a pistol rushed out of the building where the gunshots were fired. It seemed that he was preparing to go to the parking lot next to him to find transportation. ??Barsak initially thought that someone was robbing him. After all, in this city, even basic living necessities are relatively scarce, and some security incidents are inevitable. ??But after taking a closer look, I found that although the man was wearing a brown windbreaker on his upper body, the pants below his knees were military green. And he was wearing a pair of military boots. Combining everything you just learned... Stop! ??The sergeant who had just released the clutch and half-pressed the accelerator was startled by the voice, and quickly stepped on the brake. Before the car stopped, Barsac unfolded the **** of his gun, quickly opened the door and got out of the car, and at the same time shouted toward the back seat: That man might be a parachuting pilot! You two come with me! "Malkovich, you drive the car over and block the door, you can''t let him drive away!" Hearing the captain''s order, the other three people''s eyes immediately gleamed. ?The reason why the Allied operations were extremely frustrating for them was mainly due to the fact that the other side did not send ground troops at all and was unable to use them effectively. ??When the F117 was shot down last time, the pilot drifted to the countryside again and was finally rescued by the opponent''s helicopter. ??Given such a good opportunity this time, it is naturally impossible to let him go again. Furthermore, although they seldom practice gunnery as an air defense force, the opponent''s pilots only practice even less. Soon enough, under the control of the sergeant major, the green Wazir Jeep rushed towards the exit of the parking lot not far away, while the other three people formed a formation, showing a less than standard pattern. He quickly approached the suspicious target from his position. ?At this time, the other party also noticed the unkind arrival of three people and a car. He immediately quickened his pace, raised his gun, and turned around to shoot. But it is simply harder to shoot down a stealth bomber with a pistol than to shoot down a stealth bomber with an antiaircraft gun at a distance of more than 20 meters. ??The second lieutenant who was walking at the front immediately fired a long burst, suppressing the opponent behind a flower bed. Then There''s no after that. It is impossible for one short gun to kill three long guns. ??When Sergeant Major Markovich ran over panting, the pilot had already been pinned to the ground by three people. Let you blow us up let you blow us up ??The young superior soldier''s eyes were red, and while he was muttering, he gave the opponent two gun butts. Obviously he wanted to vent his anger after being bombed for more than half a month. But he was quickly pulled away by the second lieutenant next to him. The man lying on the ground has a slightly gray beard, and is obviously quite old. ??Probably a high-ranking military officer of great value. It would be a pure joke if you were accidentally killed. ??Barsac cut the opponent''s arm back, held it firmly with his knees, and put the muzzle of the gun against the back of the head: Your name, position, and unit! ?Since he can be sent out alone to run business, he must be able to speak a few words in basic English. The other party did not struggle much and answered very simply: "Born Marot, Brigadier General, Commander of the 8th Air Force, I request to be treated as a prisoner of war." ifier Even though I felt that this old guy was a big fish just now, when he actually reported his basic information, even Barsac, who was holding a gun, shook his hands slightly. ?This is more than just a big fish, its simply a blue whale... (End of this chapter) Chapter 705 valuable captive Chapter 705: Valuable Captives Next to the empty flower bed is obviously not a good place to ask detailed questions, and as time goes by and the news of "the air raids are temporarily suspended" spreads by word of mouth, there are more and more pedestrians on the street, and there is no guarantee that there will not be some people fishing in troubled waters among them. . Therefore, in order to avoid a long sleepless night, the captain quickly took off his coat, covered Brigadier General Marlott''s head, and handed the other three people to **** him into the car. He stayed at the scene and inspected it in detail to confirm that there were no missing items nearby. Follow a few others. . Strictly speaking, the identity claimed by this person still needs to be more strictly verified by the intelligence department, but for the Barsak people who got lucky today, after seeing the ID tag, pilot uniform and pistol There''s nothing wrong with opening the champagne in advance. There should be two pilots on that plane. Besides you, who is the other one? ??The captain opened the car door, sat in the passenger seat, quickly changed a new magazine, and at the same time turned around and asked sharply. Marlot was sandwiched in the middle of the back seat, with a cut on his head (hit by the **** of a gun), his eyes still covered with clothes, and he was still a little dazed at this time. ??In addition, Balsac''s English is a bit blunt, so he didn''t react at all for a while. The captain who didn''t get an answer had no choice but to pull off the clothes covering the other person''s head and slow down his speaking speed and asked the question a second time. ?The covering of clothes was just to prevent being seen by too many irrelevant passers-by during the escort. Now that we were in the car, it was naturally not necessary. ?This time, Marlott finally understood and immediately shook his head: "I don''t know. After the plane was hit, because the anti-aircraft fire had not stopped, we didn''t dare to parachute immediately. When the ejection came out, the plane had already started to become unstable and roll. He came out 2.5 seconds before me and floated. In a completely different direction. After that, I hid the parachute and moved to the countryside. I dont know why. I kept following the direction pointed by the GPS positioning system, but I seemed to have lost my way. I walked for several hours and didnt go out..." "Anyway...it was getting daybreak later, and I saw that I was still wearing a flight suit, so I thought I should steal some clothes to cover myself up. It would be better to get a car so that I can go faster, and then I meet you." ??Of course there are professionals responsible for interrogating prisoners, but since they have captured the person, they always have to take advantage of the other person''s mental state to ask a few questions first. The captain didn''t care about a prisoner''s attitude toward him, but something the other party just mentioned made him a little worried: However, it requires active operation to send out a signal. Otherwise, it only has normal positioning function and you dont have to worry about being tracked. So you still have your GPS transmitter with you? The Brigadier shrugged: In fact, Marlott was not sure whether the command would try to exchange or prepare to silence him if he was really sure that he was captured. Although the superior soldier next to him had regained his composure just after being pinned down, his expression was still quite unkind. He seemed to want to make some sarcastic remarks with a gun and a stick, but he couldn''t speak English, so in the end he had to continue to look out the window to be vigilant. "I took a special look at that time. He should have landed in the direction of the eastern suburbs, but he should have been taken away by the combat rescue team." ?Marlott hid in hiding all night, so it was naturally impossible for him to know everything that happened outside the Balkans. So I thought the other party was worried about being located and then killed: "What about you? You are a brigadier general. Logically speaking, you should be rescued with higher priority, right?" And you have also seen that my level is not low. Even if I am being followed now, I will definitely be safe, at least safer than other places. "certainly." After all, six bombs had already been dropped when it was shot down last night. As a result, this somewhat amateurish question was met with a blank stare from the brigadier general: "I was blown to the top of a building by the wind. Although a positioning signal was sent, the combat rescue team probably believed that the risk of the helicopter rushing into the city to land was too high and there was no way to operate it, so there was no news, so I Im thinking of finding a way to go to the suburbs first. At that time, it can be explained that the commander of the air force is alone, and the top management knows nothing... After answering, he turned back slightly and looked at the two fragments placed in the trunk with a strange expression. ?Barsac looked Marlott up and down with suspicion. ??In case of any uncontrollable consequences, it seems that letting him, the chief culprit, be "killed" would be an acceptable outcome for all his superiors. ?But no matter what, I still have to bluff for now. As long as the news of his capture is made public later, the risk of being silenced will be much smaller. Now he is safest in the hands of his enemies. However, Barsak shook his head nonchalantly, with a hint of pride in his eyes: Mr. Brigadier... Perhaps you dont know, but our air raids have stopped this morning. The captain himself is actually not sure whether the "pause" he just heard is reliable, and even if it is reliable, whether it will continue to be paused forever. But at least at this moment, in front of the captured Brigadier General Marlott, he finally had a real feeling of "victory" Although he was very excited when he saw the wreckage of the plane just now, when he thought about the destruction and death he had seen in the past half month, it was difficult for him to regard a cold plane as a sign of victory. "Um?" ?Malott looked in disbelief. He has a relatively accurate understanding of his own value, and does not think that the higher authorities will stop the Allied operations just because he may be captured. ??Moreover, in the two hours just after he was shot down, he clearly heard explosions that were much stronger than usual. ?However, just when he was about to deny it, he realized that in the past few hours, the city had indeed been surprisingly peaceful... The brigadier general was a little shaken. ?Seeing Marlott''s eyes flicker and no longer speak, Balsac felt an unprecedented clarity. Classroom, blackboard, waving arms, cool.gif After calming down a little, the captain asked the next question: Where was the target of your air strike last night? Why did you send a stealth strategic bomber out alone? For Barsac, who had no interrogation experience, he believed that the information he had just obtained was more important. The really fatal question at the moment was just a whim because he wanted to satisfy his curiosity. But to Marlott, the previous ones are completely indifferent, and now this is the proposition. ?? Definitely not a recruit. So he shook his head firmly: This is a military secret, I cant tell you. ?At this time, the brigadier general still didnt know how big a trap he had dug. The other four people dont know either. ?As a result, the car quickly fell into a cold atmosphere. Fortunately, the headquarters of their air defense brigade was not too far away. The jeep drove all the way and arrived at the door of a semi-underground bunker in ten minutes. Marlot had been blindfolded again. Under the strange looks of the guards at the door, Barsac and the other four dragged him into the headquarters. After the captain reported what had just happened to the brigade commander Andre Horvath (of course he concealed the fact that he had taken away two B2 fragments), the entire brigade headquarters focused its attention on these five people, or, To be precise, it was Brigadier General Marlott who was in the middle of the other four people. Horvath hesitated for a moment, then stepped forward and personally took off the clothes on the opponent''s head. He also called the communications team and ordered the news of catching a big fish to be reported to a higher-level command. Finally, he ordered the military doctor to deal with it. A wound that has begun to scab over. He could naturally tell that the wound came from the foldable gun stock of the AKMS, but after being bombarded for such a long time, it didn''t hurt for his men to vent their grievances. As long as people are still alive. Dont worry, Brigadier General, we will treat you as a prisoner of war. ??The brigade commander brought a chair and sat opposite Marlott: After all, the bomb you dropped last night may have ended the war early... (End of this chapter) Chapter 706 Isn’t there already a staircase like this? Chapter 706 Isnt there already this step... ?This sentence is indeed a bit too much information for Brigadier General Marlott, who is frightened, hungry and cold after a long night, and his mind is still stuck on the time when the plane took off about 24 hours ago. ??He subconsciously reached out to smooth his hair, but accidentally touched the wound that had just been treated. His whole body twitched in pain, but he didn''t want to fail in this situation, so he gritted his teeth and endured it. ?However, although on the surface he looked like an old monk in trance, the brigadier general''s mind was moving very fast. ?The first thought that came to his mind just now was ??Didn''t a world war start last night? After all, Marlott knew very well what he had done last night (of course he thought he knew it very well). ??And its hard not to make such associations with the Balkans, a hellish place like this. As for what Horvath just said, its easy to explain. Since the world is at nuclear peace, there will naturally be no need for war anymore. ?Horvath nodded calmly: Barsak next to him looked at the prisoners whose expressions were changing back and forth like a revolving door. He felt so happy that he wanted to jump up. But firstly, he still had to maintain his image in front of the leader. Secondly, this semi-underground command post was really small. Captain He was already tall, and his scalp almost touched the ceiling without even jumping up. There is really no room for improvement. In special times, conditions are limited and the number of dormitories is not enough, so they are all shared. Even if all the approximately 150,000 nuclear bombs around the world at the peak of the Cold War were thrown out, it would still be impossible to completely level the world with nuclear weapons, to the point where it would be impossible to even fight a war. So what the other party just said about "ending the war early" should be taken literally. ??And more importantly, there seems to be no point in cheating in this kind of thing... But how is this possible? Other than nuclear weapons, what else can stop NATO today? The brigadier general also considered whether the other party might be deliberately deceiving. And then theres At this time, the brigade commander also raised his head and looked at Barsak, who was in good spirits, but his face and body were covered in dirt because he hadnt had a good rest or tidy up since last night: Comrade Captain, you have made great achievements today. I will report it to my superiors and apply for a commendation for you! But when he was just arrested, the other four people seemed to have said similar things in the car. ?However, this idea was rejected after just a flash. ??It was a pure accident that he was caught, and it was impossible for the two other groups to collude in advance. "Okay, let the chief of staff take you to the back, have a meal and have a good rest" The 250th Air Defense Brigade was basically the only unit in the entire Allied operation that fought against the opponent for the whole game. Therefore, the personnel losses were still a little bit. At least the chief of staff had been replaced, and it was not convenient to advance during the war. title, so the original epaulettes are still hanging. Led by a lieutenant colonel next to them, the four of them walked around and along the narrow bunker passage to the living area at the back. ?Him himself is actually no better than Marlott, and his head is full of question marks at this time. The latter quickly stood at attention and saluted: Yes, thank you brigade commander! Otherwise, under normal circumstances, the chief of staff of the air defense brigade should be a colonel. Ordinary people may have unrealistic misestimations of the power of nuclear weapons under various deliberate misguidances, but as a strategic bomber pilot who has been dealing with nuclear bombs for half his life and the former captain of the 509th Wing, Malott, Still relatively sober in this regard. Whats more, the number of nuclear weapons on duty today has dropped sharply, to about one-tenth of this number. The lieutenant colonel opened the door of a room and signaled that the four of them could go in and rest: There is running water in the bathroom, but there is no way to heat it. If you want to take a bath, you can only use cold water. In addition, try to only turn on one light, the power of the generator is a bit insufficient..." ?The other party emphasized several precautions in succession. Obviously, although the brigade headquarters was in much better condition than the temporary underground bunker used by their company to hide, it could not survive alone because the entire city''s infrastructure was severely damaged. That... Comrade Chief of Staff? ??Seeing the lieutenant colonel turn around and prepare to leave, Barsac finally got a chance to talk and quickly stopped him: We first conducted anti-aircraft operations that night, and then spent several hours huddled in a bunker without water or electricity. Now we have no idea whats going on outside. I wonder if I can tell you a little bit about what the brigade commander just said...the war may end early...what does it mean? ?This matter has spread all over the world, not to mention it is good news that can greatly boost morale, so there is no reason to keep it secret from our own people: The lieutenant colonel turned around and sat down on the bedside table next to him: Of course, you can just call me Pakovich. ??Pakovich knew that the three people in front of him, especially the captain at the head, were expected to be promoted by rocket soon. There was no conflict of interest between the two parties, so it was best to establish a good relationship in advance. After all, even if this battle is really over now, it will be troubled later. It never hurts to have more friends. After everyone sat down respectively, Pakovich told a series of things that happened last night, of course, a series of things that he could know, exactly. ???? After hearing this, the four Barsaks looked at each other. "this" Is there such a thing? To be honest, for them, besides being shocked, this news is... Very satisfying. After all, the entire Balkan crisis was caused by EU countries in the first place. ?Now that the culprit is being **** by the foreign aid he invited, the victim feels naturally very happy. However, its good to feel good. ?There are some things that they really dont understand... So, the American brigadier general just flew over in a bomber and blew up one of their own people? The upper class soldier who had given Brigadier General Marlott two rifle butts to vent his anger when he was arresting people suddenly felt a little guilty: Oh my God, it looks like I might have been a little impulsive just now "Is he a pacifist? He can''t stand what Europeans are doing..." I dont think so. If he is really a pacifist, he should at least bomb his own air force base instead of a hotel...Although there are many European media there, there are also many staff and ordinary people..." ??The speculations became increasingly outrageous, but Pakovich himself was not sure why, so he had to interrupt the other people''s imagination: "In short, several European countries have now refused to continue Allied operations. Although the Americans themselves are still insisting on not expressing their position, I estimate that if the brigadier general we captured is used to make a fuss, there is at least hope of reaching a conclusion. ceasefire." If thats the case...that would be great... ?Barsac lay down backwards, his upper body hitting the bed board with a thud. As the commander of the air defense company who is directly responsible for commanding the frontline air defense operations, he used missiles first and then guns, going back and forth all day and night. Before, he had been holding a tight breath, so it was fine. But now he suddenly relaxed and felt all over his body. They all seemed to have been drained of energy. "but." At this time, Lieutenant Colonel Pakovich changed the topic again: The Americans act capriciously and have no credibility at all, so we cannot relax our vigilance too much. If they replace people but end up regretting and starting the war again, we dont seem to have a good way to deal with it..." The other side. Huaxia, Beijing. The meeting organized by the General Staff at Sanzuomen has basically come to an end. After all, Mr. Zhang has other external itineraries and there is no more useful information at hand, so it is impossible to keep driving. As for how to end it There is no effective result discussed yet. Everyone agrees that the current problem is that the contradiction only exists within the attacker''s camp, allowing the United States to delay time relatively easily, or even wait until the limelight has passed before relaunching operations. Therefore, it is best to exert some external pressure to make it difficult for the United States to take both internal and external considerations into account. At that time, in exchange for the removal of this external pressure, the Allied operations will be officially stopped. ?However, this kind of thing is easier said than done. Mainly in this era, China is still lagging behind in terms of ability and experience in exerting extraterritorial influence. It would be okay to plan ahead and sneak in some key equipment and so on, but at this juncture, there is not much that can be done. ?This made everyone present feel a little regretful. ?However, when sleepiness comes, give me a pillow. Just when he was about to announce the end of the meeting, another intelligence officer from the Second Bureau hurriedly sent a piece of information. After reading the content, even Mr. Zhang, who was the most calm and composed, couldn''t help but shake his hands. Mr. Zhang? Fu Youquan naturally had the right to directly check the information, but when the leader was present, he couldn''t get over to take a look, so he had to ask in a low voice. Comrades, there is news from the Balkans. Lao Zhang put the intelligence folder back on the desktop, raised his head and looked at the people in front of him: One of the two pilots of the B2 bomber, Brigadier General Bonn Marot, commander of the Eighth Air Force, was captured. (End of this chapter) Chapter 707 Breaking the Balkans! Chapter 707 Breaking the Balkans! In an instant, everyone in the house was shocked! Including Chang Haonan. Before he was reborn, he had not actually studied the entire process of Allied operations, so he did not know the specific origin of the B2. Let alone others. On the one hand, since the defender''s ground forces have been facing high-intensity air suppression for a long time, their range of activities is often very restricted and can only be near concealed locations, which is very disadvantageous for tasks such as hunting down parachuting pilots. ?In the roughly twenty days since the Allied operation began, several parachuting pilots who shot down the aircraft were eventually taken away by the search and rescue units of the Allied forces. On the other hand, the pilots military rank seems a bit too high... Brigadier general, in principle, should correspond to the senior colonel on the Chinese side. But in fact it cannot be calculated like this. The highest-ranking school officer and the lowest-ranking general officer cannot be completely equated in meaning. Furthermore, the officer staffing level on the US military side is correspondingly lower. It was a bit unexpected to personally fly a bomber halfway around the world on a bombing mission. In short, it seems that there is no need for us to take action at all? ?For example, a flying wing roughly equivalent in size to an aviation division, the wing leaders military rank is only that of colonel. Rescuing pilots behind enemy lines is a very difficult task. Liu Yaoshun did not continue to struggle with the previous issue, but returned to the core topic at the beginning: "No matter what, this Brigadier must have enough cards. If he appears publicly in the media later and threatens to try him as a war criminal, then the United States will have to pay a price even if it is just to appease domestic public opinion. Get the people back!" "But this time, although we don''t know exactly where the plane hit, the fact that it crashed on the outskirts of the city shows that the pilot most likely parachuted over the city and probably landed in a densely populated city with a large number of troops. For combat search and rescue, , basically a target that cannot be rescued. Send a few more and you will become a clown. The situation seemed to suddenly become clearer in an instant. Specially sending a commander with such a high military rank to serve as a pilot may only be due to the need for confidentiality. Low-level officers may not have the authority to know the true purpose of the mission. Fu Youquan picked up the intelligence document and glanced at it briefly: Fu Youquan closed the folder, put it on the table, and shook his head: In short, in the U.S. military, brigadiers are basically senior officers who are separated from front-line command positions. "In response to this Allied operation, the General Staff set up a special staff group to study the coalition''s air force and the application of special forces tactics. In general, the reason why the previous rescues were all successful was mainly because of the range of anti-aircraft missiles. It is relatively far away, and the locations where the planes were shot down are outside the city, making it easier for pilots to locate and search. It seems that the original target of the air strike is exactly what we had guessed before. ?Chang Haonan nodded slightly after listening to this analysis. "The capture of the commander of such a unit is definitely a major loss not only for the Allied operations, but also for the entire US military. It is hard to imagine that the US military did not rescue this pilot." "The U.S. Air Force is almost equivalent to our military air force, especially the 8th Air Force, which is a purely strategic bomber force. It is affiliated with the Air Force Global Strike Command and belongs to the first order of nuclear deterrence. At the peak of the Cold War, This force will maintain a certain number of bombers on patrol 24 hours a day to avoid being wiped out on the ground by the first round of nuclear strikes. After all, no matter how important the pilot is, he cannot save Grandpa. "In this case...the conditions we just discussed will be achieved, right?" ??For ships such as aircraft carriers and cruisers, the captain''s military rank is only colonel. Liu Yaoshun had already put his hat on, but now he took it off and put it back: ?Substituting a brigadier general for the truce can be regarded as finding a step for the United States (although it is still a bit embarrassing). Who cant make cards out of thin air? ??Furthermore, the card of Marlott was not created in the void, but was sent by the Americans themselves... Another officer also added with a smile: Not only that, I estimate that there will be more than one country that wants to try Brigadier Marlott ?Everyone also reacted one after another. From the perspective of several European countries that have suffered huge losses, this person is obviously the culprit, and it is impossible to just expose him casually. In other words, for the sake of its own public opinion, the European side may even abandon the Americans and conduct extradition negotiations alone? That shouldnt be the case. ??The officer who just spoke shook his head: "However, with reference to the Cavalese cable car tragedy that occurred in Italy last year, it will definitely put pressure on the United States, and it is likely to propose a military trial within the framework of NATO. In short, the current conditions are indeed more conducive to a ceasefire and the alliance can successfully suspend the The probability of military action is not low. ?Amidst the relatively optimistic opinions, Mr. Zhang and Fu Youquan, who had just read the original text of the intelligence document, did not appear particularly relaxed. Including Chang Haonan, they also felt that things should not be that simple. ?The idea of ??using important captives as exchange chips is certainly correct, but the operation may not be as smooth as imagined. Sure enough, after a while, Mr. Zhang coughed twice: Comrades, dont focus entirely on the Americans. "This condition is actually not difficult for the United States to accept. However, there is only one chance to use prisoners as bargaining chips. If after the Allied operation is over and the storm subsides in another two years, they come back, What should we do? Even if the equipment and technology developed by Comrade Chang Haonan were still there at that time, or even if they were upgraded, would it be possible to shoot down another B2 by chance and capture another pilot? ?This question made the atmosphere at the scene calm again. Even if most people here believe that the interference with GPS was deliberately set like that by Chang Haonan, they still have to admit one fact - ?The reason why Allied Operations has reached the dead end it is today is mainly because the United States committed suicide and a series of coincidences. ?Whether it is passive search radar or GPS directional jamming equipment, they only play a "catalyst" role. Therefore, if it is true as Mr. Zhang said, if the Allied operation is repeated in two years, it will be almost impossible to get the same result. ?There was a moment of silence. Speak of this. Fu Youquan looked at Chang Haonan, who had been invisible since he introduced the principle of GPS jamming before: Comrade Haonan, it seems you havent spoken before? "this" Chang Haonan was shocked when his name was suddenly called: General Staff Meeting, after all, I am not a member of the General Staff In this case, the attitude should be corrected. Lao Zhang, who was at the top of the list, waved his hand: Hey, there are no taboos in internal discussions, and it wont be short of the time you have to speak. Chang Haonan did not rush to speak. Instead, he looked around first, pretending to be harmless to humans and animals. In particular, he looked at Ding Gaoheng specifically to make sure that the latter meant the same thing: ThenI dare to say a few words Fu Youquan nodded as he picked up the cup and drank water, and cast an encouraging look at him. Then send someone there O Ahem Seven words made almost all the more than 20 generals present unable to hold their nerves. Although it is said that there are no taboos, you are a bit too taboo-free... Of course its not just our own faction Chang Haonan also realized that he was indeed a bit of a blockbuster, so he quickly made up for it: "What I mean is that since the Americans were playing the human card at the beginning, they might as well take advantage of it. As long as the Allied operation can be ended in name, we can propose in the Security Council that in the name of peacekeeping, the five major good...the five permanent members of the Security Council Jointly dispatch peacekeeping military units to the Balkans to prevent another human crisis! (End of this chapter) Chapter 708 Air Force, opportunity to go abroad Chapter 708 Air Force, an opportunity to go abroad Those who can sit in the conference room of Sanzuomen are definitely not ordinary people. ??Although I was quite frightened by Chang Haonan''s surprising language at the beginning, this was mainly because the word order was reversed and the emphasis was placed on the front. After listening to his entire idea, everyone quickly figured out the key points Do you think Chang Haonan is talking nonsense? ?Then he is not talking nonsense. In fact, even in the original timeline, after the Allied operation ended, a group of "peacekeeping" units were stationed and maintained their presence for a considerable period of time. It''s just sent by the EU. Thats right, sending peacekeeping troops is never something that only the United Nations can do. As long as the host country agrees (or is agreed), other international organizations and even a single country can also do so. ?Of course, the outcome of the last Allied operation was a complete victory for the coalition forces, so naturally there is no fairness in this so-called "peacekeeping". It is just another set of nice words for "military occupation". ??Although China has had experience in similar operations before, it was only to neighboring countries. It dispatched engineering troops, and the mission it performed was to maintain peace. Even if other countries outside the region have the intention to do so, they have neither the status nor the ability to intervene when the battle has already been fought and the defenders have been severely defeated. The United States launched the allied force operation in name to protect people. Now that peacekeeping units are stationed, and the U.S. military is included among them, it can completely declare to the outside world that its original goal has been achieved, the allied force operation has achieved complete victory, and it is logical to withdraw its troops. win. ?This mission proposed by Chang Haonan is not on the same level at all. ??For someone who has experienced the 2020s, peacekeeping is daily news that can be seen anytime and anywhere. There is also a standardized execution system for personnel selection, troop allocation, daily operations, etc. The situation in the Balkans is close to an end for almost all forces. Under such circumstances, it is natural that the United Nations, which presides over "equity and justice", should step in to control the situation. For China and Russia, who are currently on the defensive, they can turn the situation that was almost a sure loss into what it is now, preserve the Balkans that is almost torn apart, and even legitimately regain some influence on the region. Strength, definitely make enough money, win. They are only the same in name. However, just like all the wonderful ideas that Chang Haonan has proposed before, the plan is a plan and the execution is execution. As for the subsequent compensation and apology, that is another matter and has nothing to do with the situation in the Balkans. ?However, the situation today is completely different. Furthermore, for the five great virtuous people, they are all decent in terms of face. ?Hence, no one immediately expressed clear support. ??Now it is okay to choose to end things as soon as possible and give the Allied operation a decent end. But not in the late 1990s. The reason why this idea was first proposed by him was mainly due to his broad thinking. The issues that professionals have to consider are far more complex than those for laypeople. Winning five times means losing money. ??The military only needs to write down a few key indicators when putting forward technical requirements, but to implement them, it has to mobilize countless manpower and material resources and spend months or even years. This is the same as building an airplane. For Britain and France, which have been bombarded, they can also explain internally that they withdrew from the operation as soon as possible in response to the losses they suffered in the Balkans, and it was precisely because of their "tough" stance that the United States was Forced to end Allied operations, maintain prosperity and peace in Europe, and win. Now the situation is just reversed. So Chang Haonan is not in a hurry. ? Judging from the expressions of others, especially Mr. Zhang and Fu Youquan, it is not difficult to judge that they have begun to think about specific operational issues. And this is an attitude in itself. ???In the end, it was Mr. Zhang who set the tone: We do not have the final say on peacekeeping missions, so there will definitely be no results from the discussion at this meeting. It is already past noon, so I suggest adjourning the meeting temporarily. However, I will have a phone call with General Anatoly Kvashnin of the Russian Army in the afternoon. If the superior leadership does not object, then we can communicate on the phone about the possibility of this matter at the implementation level..." In addition, regardless of whether it can actually take place in the end, the General Staff must formulate a detailed plan in accordance with the standards of regular military operations, especially at the level of logistics supplies and emergency response. ?Fu Youquan, who was suddenly called upon, quickly replied: "yes!" Lao Zhang closed the notebook in his hand and nodded with satisfaction: On the one hand, this plan is indeed feasible, and there is a high probability of obtaining preliminary approval from superiors. The faster and more detailed the plan is, the stronger the confidence it will give to superiors. On the other hand, our country has been in a peaceful environment for a long time. Such an action plan with a practical background, even if it is only a paper exercise, is of great significance in improving the capabilities of the staff. Also, the Air Forces newly established strategic transport aircraft unit must also be prepared. He looked at Liu Yaoshun on the other side: "If we really need to deploy forces to the Balkans, the efficiency of sea route is too low. Only air transportation can meet the timeliness. It is also a window for our military to display to the outside world. In the past two years, the superiors have allocated funds for strategic transport aircraft procurement and training. Very generous. There is no compatibility issue with the Il-76 when flying to Eastern Europe. If something goes wrong at this critical moment..." Lao Zhang did not continue, but stretched out **** and tapped the table lightly. Hearing this, the latter naturally knew that he wanted to express his position: Chief, please rest assured. Since last year, the transport aircraft force has carried out several long-endurance transport missions in unfamiliar airspace in China. We are confident that long-distance cross-border transport missions can be successfully completed! ??Chang Haonan continued to return to Little Transparency after just finishing his thoughts, but he felt a bit regretful when he heard this. After all, even if his plan is actually implemented, China can still only use imported Il-76MF to perform this task. We can only show the air forces style, but there is no chance to show the capabilities of the aviation industry. Coincidentally, in the previous generation, China''s domestically produced strategic transport aircraft carried out its first mission in Europe. It also flew to the Balkans and delivered a batch of Hongqi-22 anti-aircraft missiles. It''s just that those missiles arrived a little late... ?After the meeting, Chang Haonan packed his things and was about to leave, but he was stopped by Liu Yaoshun behind him. Comrade Haonan. ??For some reason, the head of the Air Force seemed a little worried when he spoke: In your opinion, is this example of using anti-aircraft artillery combined with multi-point passive search radar to shoot down a stealth fighter aircraft repeatable? ?This question was a bit beyond Chang Haonan''s expectations, but he still shook his head decisively: Although I came up with the plan, I must admit that luck played a large part in it. "The reason why they chose anti-aircraft artillery in the first place was because they really didn''t have decent modern anti-aircraft missiles on hand. The S125 really couldn''t cope with the dual pressure of interference and low RCS at the same time. If even the early models of S300PT, 36DM1 warning radar and The combination of 5N63 fire control radar also has a considerable possibility of burning through interference in close range and narrow beam mode..." "Moreover, the more important problem is that the range and shooting height of the anti-aircraft guns are not enough after all. They can only supplement the air defense after the opponent completes the bomb drop. Just like this time, the B2 has actually dropped the bomb. If not GPS jamming plays a role ?Chang Haonan did not continue, but the meaning was already clear. You will always suffer from air defense afterwards. So a better anti-stealth idea is to use advanced medium- and long-range air defense missiles, paired with radars with passive search capabilities? For us, of course. Chang Haonan replied. Thats goodthats good Liu Yaoshun was obviously relieved: Dont worry about the expansion of the anti-aircraft artillery force (End of this chapter) Chapter 709 The three of us Chapter 709 The three of us Compared to China, which is the manipulator behind the scenes and therefore fully aware of the whole situation, and the United States, which is the culprit and does not know the whole picture but can understand most of the joints, the EU''s response is somewhat slow. ?Mainly because since the Balkan crisis broke out at the end of March, they have changed from talking about the situation in the Balkans to being the soy sauce. ??The situation was completely dominated by the Allied Command in Campania and the Allied Air Command Center in Emilia Romagna. ??The main purpose of the US military launching the Allied Forces Operation was to disrupt Europe and run on the euro. In addition, it has long realized that these European allies are extremely unreliable. The intelligence briefing to them is basically equivalent to sending it to Lubyanka Square at the same time. ??Although the Cold War is over, the inertia is still there, so it is naturally impossible to be open and honest with European "allies". In this case, most European countries actually rely heavily on their foreign media to obtain information on the front line. ?Although it is called a "media", a considerable number of its staff are almost semi-open intelligence agency agents. In normal times, there seems to be nothing wrong with relying on this method, even because he is on the front line and can rely on his status as a reporter to go on a rampage on certain occasions. The speed of obtaining information is compared to that of the Allied commanders who rely on long-range reconnaissance and electronic warfare methods. The department needs to be a little faster. But last night, for reasons well known to all, these media ?However, as a senior French intelligence officer, his contacts in Europe are much richer than those of Ding Gaoheng. Because intelligence agents from these two countries also disguised themselves as media, and therefore stayed in the same hotel as French TV crews. ?This contact, but there is a problem with the contact - So, as usual, he first notified the Inter-Ministerial Intelligence Committee, and then contacted his subordinates and asked them to contact intelligence personnel in the Balkans through "special channels" to confirm the local situation. ?At this time, Sanson finally began to realize that something was not quite right. Allied aircraft are not allowed to fly south of 45 north latitude. After all, he is an intelligence officer. For France, the United Kingdom and the United States are also "very suspicious allies." Some things can be kept secret, but they must be known. ?This is completely different from the nature of the media broadcast signal being cut off. ?Abnormal situations like this tonight are obviously a signal that the US military is performing a special mission. ?So he called an acquaintance working in Brussels and asked if there would be a large-scale military operation that night. The results were not surprising at all. In fact, at this point, it is impossible for a normal person to imagine that his family was directly hit by six aerial bombs. In this case, it seems that there is only one possibility left... ??If it is really attacked by the other party''s security agency, basically everyone will not be able to escape. Cant contact all of them. It''s just that this is not the case. This further confirmed Sansons conjecture You must know that intelligence agencies rely on military satellites for communication. Although the satellites themselves belong to France, the communication frequency band characteristics are in line with NATO standards. ?Then, the broadcast signal suddenly stopped. ??Same with Sanson. Of course the British were also there, but in the eyes of Sanson, a Frenchman, the Angsa barbarians on the other side of the strait were really not one of his own. ?No matter what happens, the U.S. military cannot interfere with the communication tools it uses. In fact, even at this point, he still did not think about the fact that his family was killed. He was mainly worried about whether he was controlled by the local counterintelligence agency. ?Furthermore, technical personnel from the General Directorate of External Security assured that the satellite was in normal working order and that there were no problems with their communication with intelligence personnel in other parts of the world. ??The intelligence committee was also unable to contact frontline personnel. It should be said that his guess is correct to a certain extent. ?Hence, Sansons first reaction was to contact his counterparts in Germany and Italy. Our intelligence officers should have been praised. ?At first, Sanson didnt take it seriously. His first reaction was to call a friend who worked at a national television station. ? Its not that this agency is very capable in terms of capabilities, but that their director Yannick Sanson, like Ding Gaoheng, was watching TV because of insomnia at 23:47 local time. The first person to realize that something was wrong was the French Directorate General for External Security. Then I quickly received news that the source of the broadcast signal suddenly disappeared. The problem is not with the signal, but with the people or equipment. ??Next, Mr. Director continued to make the same judgment as Ding Gaoheng, and logically believed that electromagnetic interference may have been released due to military operations. ??He simply wanted to know what mission the Americans were performing tonight without telling their allies, even at the expense of interfering with radio and television satellites. ?The other party even asked him for help asking what the reason was. ??There is also a Spanish media in this hotel, but they are really just media and are not involved in intelligence work. Having worked in intelligence agencies for most of his life, he certainly knows that when the U.S. military conducts military operations that truly involve core secrets, it will not share intelligence with its allies. At most, it will only report it after the fact. Lost contact. ? Sansong had been suffering from insomnia and couldn''t sleep, but after being so startled, he didn''t even feel sleepy at all. The answer was that not only was there no large-scale military action at night, but a request from the US military was even forwarded. ?? Being promoted by the other party''s security agency is a huge dereliction of duty by the leadership of the intelligence agency. Hence, Sansons first reaction was to suppress the matter first. ??Although the intelligence officers were arrested, and they were arrested together with unknowing real media staff, it was a major event that could shock the people, and it was impossible to really hide it. But at least we can find a way to throw the blame away. Early morning local time the next day, 0:20. ?Under tremendous pressure to shirk the blame, Sanson rushed from home to the General Intelligence Bureau''s office half an hour later and held a video and telephone conference with two other colleagues who were also forced to work overtime because they were worried about taking the blame. After some routine bickering and incompetent rage, the three of them realized that the biggest trouble at the moment was that after the Allied operation began, they had cut off official communication channels with the Balkans. In other words, even if you want to negotiate terms with the other party now, you can''t talk. Perhaps... we can try to find a third-party country to coordinate? ?Sanson was the first to try to suggest. Third-party countries? What about? ? Simone Crosetto, director of the Italian Foreign Intelligence and Security Service, shrugged, obviously not very optimistic about this idea: And more importantly, we have no leverage. Originally, opinions within the EU on the Balkans were not unified, and quite a few people believed that a strategy of maximum pressure should be adopted in order to maximize interests. ?Once you really break your skin, there will be no room for maneuver. ?However, overconfidence and the Americans'' fanning the flames from behind still caused this relatively rational voice to be drowned in the end. Crosseto was one of the important supporters of this point of view. ??Nowadays, the way I speak is naturally a bit strange. "We will talk about the exchange of intelligence personnel later. The top priority is that we must understand as much as possible about the situation. It is not only our agents who have lost contact this time, but also many people from several media outlets. We cannot hide it for too long. If we don''t know everything when faced with questioning, the situation will be in trouble..." ???The head of the Federal Intelligence Service, Volker Luedler, is a German in the traditional sense. He is old-fashioned and unsmiling. Seeing that the other two colleagues seemed to have a tendency to fight among themselves, he quickly made peace in the middle: "When the two Germanys were reunified, in order to express goodwill, our intelligence agency recruited some Stasi members. Although the arrangements were for work that did not touch the core business, we can still use these connections to cooperate with our old rival the Federal Republic of Germany. Contact the Security Bureau and ask them to act as an intermediary. Even during the Cold War, both sides of the Iron Curtain maintained fairly smooth channels for information exchange, let alone now. "But...it is also possible that the FSB was behind this incident. You must know that the TV broadcast signal was suddenly cut off, and all our media and intelligence personnel lost contact almost at the same time. Such a high-level counterintelligence operation could only rely on the Balkans It may be difficult for regional security agencies to do so. ?Sanson is still a little worried: If we contact each other like this now, will it happen... He was still a little worried about losing face. Crosseto seizes every opportunity and continues to be weird: It doesnt matter, anyway, we have often lost people like this in the past half century, and we dont care if we lose them once or twice more..." ??Rudler knew that now was not the time to quarrel, so he quickly intervened before Sanson Hongwen: Anyway, we dont have any evidence yet, and were not even sure what happened. Besides, even if the Russians take action, we can first listen to their conditions... After some coordination, the three people finally managed to unify their opinions. In fact, from the perspective of Rudler, who knows the Russians better, this matter does not look like the handiwork of the Federal Security Service. There are agents hidden in the media, which are basically known to the Russians. ??But no matter in terms of ability or willingness, the other party has absolutely no reason to take action at this time point. ??Moreover, he does it without any discernment. The way he behaves is too rough. ??Moreover, the role that the intelligence personnel of the three countries can play is actually not much different from that of the real media. There is really no need to go to war... ?But as to what other possibilities there are, Rudler really can''t guess. More than a hundred people, all lost contact. ??If it werent for being controlled, could it be possible that they all died? ?Just as he was thinking this, the phone on Sanson''s desk suddenly rang on the other side of the meeting. Logically speaking, when this kind of leader is in a meeting, unless there is something shocking, his subordinates will not call in. ??The latter was about to turn off the voice system when he heard the phones ringing from Crosetto and Rudler. The three of them picked up the phone almost at the same time. Director, we just received news from our staff in Brussels. ??The slightly anxious voice of his subordinate came from Rudler''s phone: "Our intelligence station in the Balkans suddenly experienced a violent explosion just before midnight. The casualties are currently unknown. According to the current information, it is likely that a bomb dropped by a US B2 bomber... But this The bomber did not seem to have returned, and it was probably shot down by air defense forces..." ?) ??Ldler never expected that the possibility he had just thought about would come true. His mind suddenly buzzed, his vision went dark, and he almost lost consciousness. After finally recovering, he quickly raised his head and looked at the TV screen in front of him. Even though all three of them turned off their voices, the other two looked like they had seen a ghost. The news they received should be the same... The news spread to the top levels of major EU countries in a very short period of time. In fact, at this point, their speed of information acquisition is still far ahead of those in Beijing and Moscow, which are thousands of kilometers away After the B2 was shot down, in order to completely blow up the wreckage and rescue the pilot, the US military dispatched the entire deck of the Roosevelt and launched a very high-intensity attack wave. Therefore, although the overseas agencies of the latter two were also aware of the explosion, However, due to strong electromagnetic interference, there was no way to transmit the information back to the country in the first time. ?In addition to being anxious, we can only take risks and go out in all directions without clear instructions to see if we can collect some useful information. However, in the following hours, the EU countries did almost nothing except holding an emergency meeting of leaders and saying a few nonsense words at the press conference. This is actually understandable European countries are already highly dependent on the US military for their defense. ?However, this time the culprit was the other party. Who can we turn to to seek justice? Until almost morning, the United States gave an explanation that "an anti-aircraft missile missed its target and then hit by mistake." ??Everyone knows that this statement is nonsense, but for European countries that dare to be angry but dare not speak out and do not want to make the matter bigger, it is a relatively easy choice to calm down the matter. ?As long as you put the blame on the enemy, you will be innocent. Originally, everyone was ready to cooperate. ?As a result, within a few hours, several international media outlets that were not too concerned about the excitement exposed a clear photo of an unexploded bomb Three GBU31. At present, only the US military is using it. ?Now, even covering the lid is a luxury. In order to quell domestic public anger, all countries had no choice but to make further decisions to suspend participation in allied operations. Then The state of brain death continues to be maintained. And this also caused them to miss their last opportunity to seize the initiative... (End of this chapter) Chapter 710 Balkans, the end Chapter 710 Balkans, the End Obviously, not everyone will die with the Europeans. In the face of such a major event that is likely to change the direction of the world line, it is extremely important to take the initiative. It should be said that the U.S. military was extremely efficient in this regard. It completed a series of post-event disposals almost within two hours of the Spirit of Kansas being shot down. If it weren''t for the unlucky Brigadier General Marlott who happened to be ejected almost to the city center and went in the wrong direction due to GPS interference while heading to the suburbs, the helicopter of the combat rescue team waited for half an hour and was not seen. The figure is forced to retreat, and the negative impact of this incident may even be narrowed to a very small extent. Its a pity that there are some things that cannot be avoided. Wrong targets, unexploded bombs, captured brigadiers. Their situation suddenly became very embarrassing. The world, in many cases, is actually turn-based. ?After the American with the fastest reaction has finished playing his cards and the European with the second fastest reaction has lost the connection and burned the rope without having time to play the cards, it is the turn of others. On the afternoon of April 18, as mentioned at the General Staff Meeting, Mr. Zhang and Fu Youquan held a round of remote meetings with General Anatoly Kvashnin to discuss the dispatch of units to carry out peacekeeping operations in the name of the Security Council. possibility. ? Condit cheered up and stood up a little straighter, but still did not put his hand on the handle of the M2 machine gun. It doesnt sound like one yet. A few hours later, local time, on the night of April 18th. However, just when he was already feeling a little sleepy, the roar of a diesel engine suddenly came from far and near. Even on normal days, there are not many vehicles passing through here. ??The positive words will definitely not be so straightforward, but that is what they mean. But a convoy. The relationship between your second uncle and your father has been ups and downs for so many years. Now that such a good opportunity is in front of you, you must not be able to go it alone. I have already prepared to do something. If you dont follow, I will look down on you... ?Sgt Matthew Condit, who was standing guard, stood in the machine gunner position of the Humvee as usual, looking at the road in front of him boredly. In fact, Chang Haonan was able to come up with this idea at that time, largely inspired by this army in the previous life... In fact, the core purpose is to raise fire You old Russians have been important players in the Balkans for the past two hundred years. Although they have shrunk now, they are no longer just cats and dogs. Now Americans are just that. Even the European Five started to cause trouble, and in the end they still Internal strife has begun. Can you bear it if you don''t do something now? If you can bear it, you can eat it... ?Of course, Gonghuo is Gonghuo, and the other person is not a fool after all. ??If you want to persuade others to take advantage of the fire, you will definitely have no hope of relying on words alone. In the end, you still have to rely on profits. As it happens, if the plan proposed by China can be implemented, the Russians will probably be the ones who can take advantage of it the most. Especially at night. Searchlights and headlights can only illuminate a distance of about a hundred meters. To the human eye, places farther away are completely dark, as if leading to an abyss. What''s more, since the Allied Operation began, the checkpoint has become a theoretical war zone. Border of Bosnia and Herzegovina. Because they are in the Balkans and really have a force that can be mobilized immediately. ?Although the border area has not been directly affected by the war, except for a few unlucky ones who live on one side and work on the other, it is even less likely that anyone will take this road. Since he was standing at the highest position, he saw a row of car lights traveling along the road in the distance earlier than others. Other people on the ground who were standing guard with him had spread out, preparing to conduct routine inspections of the convoy. Generally speaking, the trucks passing through here are used by international organizations to transport supplies (and of course smuggling), and inspections are only routine. As long as the driver spends a little money, even this routine can be skipped. As the opposing convoy gradually approached, a lieutenant in charge of the sentry came to the middle of the road, crossed his hands above his head, and signaled the other party to stop. But soon, they discovered that something was wrong. ?The other party suddenly turned on the high beam, making the people on the ground unable to open their eyes for a while. ?However, Condit, who is in a higher position, was not affected too much. What appeared under the searchlights did not appear to be the expected convoy of trucks. The one headed by the car, judging from its outline, seems to have a turret... Its a tank...no, it should be an armored vehicle? ? Condit almost subconsciously pulled the charging handle and shouted loudly to his comrades below. In this flash of time, the opposing team had already approached some distance away. ?Now, even a few people on the ground can distinguish the distinctive outline of the BTR armored vehicle from its outline. The words "KFOR" seem to be visible on the lower armor plate of the lead car. ?) The US military was a little confused for a while. KFOR was a force prepared to move into the Balkans to take control of the situation following a successful Allied operation. Although they are still in the preparation stage, they have actually been sent near the border under various names. By then, they can just change their clothes and rush in - Thats right, its actually them. ?Now, when seeing this logo that belongs to you appears in front of you, everyone will be confused for a moment. In fact, if we put it aside 10 years ago, when we saw BTR, we could already judge whether the opponent was an enemy or not a friend. However, since the 1990s, a large number of countries equipped with Soviet-style equipment have become their allies or quasi-allies, which directly makes it completely unfeasible to rely on equipment models to distinguish between ourselves and the enemy. And just in time, in order to show "sincere unity", there are actually several teams from different countries in Eastern Europe in the KFOR sequence. Is it our turn to rush in? ? Condit couldn''t remember where his KFOR armband was thrown. If he needed it now, it might be a bit troublesome. ?The lieutenant standing in the middle of the road still had the same posture as before, trying to check the identity of the visitor. But not only did the other party have no intention of stopping, the sound of the diesel engine actually became louder and sounded like it was accelerating. ?At the same time, the two sides finally got close enough to see the details of each other''s vehicles. The first car seemed to have a white, blue and red tricolor flag on its side... ?Condit, who had just woken up from a dream, wanted to turn the machine gun, but then realized that he had not actually received the order to fire. ??Furthermore, our side currently only has one 12.7 and a few 5.56s, while the opponent''s worst firepower is 14.5, and there seem to be a few 30mm... ??If you really get into trouble, it seems to be a bit of a disadvantage. ??It''s hard to say who the sergeant''s hesitation saved at this moment, but in short, the opponent''s convoy arrived in front of him almost in an instant. ??The lieutenant who was standing in the middle of the road jumped to the side with quick eyesight and quick hands. With a loud "bang", the checkpoint''s blocking pole was knocked away, and a dozen BTR armored vehicles filed into the other side of the border under the watchful eyes of a group of US troops... Lieutenant? After the smoke and dust raised by the motorcade cleared, Condit turned to look at the lieutenant who had not even touched a gun during the entire journey. The sound of the diesel engine gradually faded away, and the scene became quiet again. Nothing seemed to have happened except for the broken barricades. The lieutenant calmed down his frightened mood: Report to the superiors and tell them that a KFOR convoy has just passed the checkpoint and ask us if we need to follow them. But that was Russia just now The other person next to him looked shocked. After all, the other party didnt even take off the national flag on the car. The reason why it was written KFOR was obviously not to confuse them. ?Either he wanted to express his dissatisfaction for not receiving an invitation when KFOR was formed, or it was just a simple prank. ??But before he finished speaking, he was interrupted by the lieutenant: I only saw an Allied convoy with the KFOR logo on it, what about you? ??The radio operator understood immediately and quickly adjusted the channel to try to get in touch with his superiors. Early the next morning, news that shocked the world came. A VDV fleet of about 200 people has arrived at the central airport in the Balkans. ?Faced with doubts, the Russians are also very convincing: Isnt the Allied Operation over? Then it should be reasonable for me to be invited by the host country to maintain peace here, right? Your action caused the tragedy of more than a hundred civilian casualties the night before yesterday, most of which were your own. Is it to protect people as promised? I told you not to take me with you when you formed KORF. Are you being punished now? Now that the chaos is like this, if you dont rely on me to maintain peace, how can you still rely on you? "Now that my people have been sent in anyway, it is impossible to come out. However, I am willing to serve as an intermediary to host the exchange of prisoners, and to form a completely open investigation team to investigate what happened the day before yesterday. All countries and organizations that want to participate, we All welcome. After this statement, Huaxia also stood up and said that I have already told you that peace is the most important thing and not to engage in war. You see, things are now in chaos. ??Furthermore, since the eldest nephew has spoken, as one of the five good people, I cannot shun international responsibilities, so I reluctantly set an example and agreed to send someone to join the investigation team. I also support the disclosure of the entire investigation process and results... For such a big matter, investigation is definitely inevitable. Otherwise, there would be no way to give an explanation to the people of the countries involved. But both the United States and the European Union have their own agendas, and it is obviously impossible to allow the investigation results to be truly open and transparent. At least it cannot be open and transparent led by the Russians. ?Who knows what will be found? ??Moreover, Brigadier General Marlott is still in the hands of the opponent. If the time drags on for too long, there is no guarantee that a confession will not be made. Obviously, the knot must be cut quickly... Therefore, the United States immediately proposed that if the investigation is to be fair, it must not just stuff people into it, so it should be organized within the framework of the Security Council, which is fair and just. Considering the safety of the investigation team itself, and in order to monitor the follow-up human situation in the Balkans, a peacekeeping unit should also be established in the name of the Security Council on the basis of KORF. In the end, after several rounds of wrangling, KORF was finally expanded into a force composed of nearly 30 countries, including the five permanent members. In order to muddy the water, a lot of soy sauce was even included. member And the turbulent situation in the Balkans ushered in temporary peace in such an anticlimactic form... (End of this chapter) Chapter 711 special souvenir Chapter 711 Special souvenirs One week after Operation Allied Forces officially ended. Wu Yifan, of course, is on the surface a Russian businessman (suspected) Zamusu who was entrusted by the Ermao Ministry of National Defense to provide building materials for the construction of military camps. Along with a transport plane transporting humanitarian food aid, he landed in a building that had been destroyed. An airport controlled by Russian airborne troops. Even for peacekeeping, the distinctions between different camps are obvious. Although it is impossible for more than 30 countries to build separate military camps, after all, a considerable number of them only send single-digit personnel, in order to avoid causing conflicts, KORF has preset four far apart stations. ??Wu Yifan is responsible for the Ermao part of the camp in the CIS countries. ?Before this, although he had long-term business dealings with people here, the transaction locations between the two parties generally chose Greece, Hungary or Romania. At most, it was just like last time, they would deliver the goods immediately after crossing the border and then leave. So, this is actually the first time he has come to the Balkans in a real sense. There are naturally no portholes in the cargo hold of the transport plane, and only a few dim lights provide some illumination. Therefore, the moment the tail door opened, the few people standing at the door were subconsciously blocked by the strong light that suddenly shone in. eyes. After their vision recovered, everyone could clearly see the scene outside the plane. ??The main purpose of Wu Yifan''s visit this time was really to inspect the local environment and prepare for contracting projects, so he still brought a few capable assistants with him. The technical level of fighting wars now is much higher than in the past, and the scope of the impact can be controlled to a relatively small range. ?In this year and age, although the relationship between the few friends cannot be said to be very good, at least it is decent in terms of face. ??It wasnt until the colonel came up to shake hands with him and introduce himself that Wu Yifan saw the blue and yellow flag on the side of his arm. In addition to these two forces, other countries that have joined KFOR have currently only sent coordinators and observers. The VDV that raided two airports in succession a week ago was naturally sent by the Russian army alone. In order to compete with them for the initiative, after the US military learned the news, it also asked the British army to send a special force from Macedonia, risking being intercepted by air defense. The risk of downing fire (which was still theoretically engaged at the time) preempted several key positions. Brother, why do I feel like...this place doesnt look like it just had a war? The things he has been messing around with over the years are basically related to weapons and equipment. In addition, after being roped into the "thief ship" by Chang Haonan recently, he has gone to replenish a wave of related knowledge. Therefore, in front of a simple layman like Yan Yong, he is still Able to act sound and clear. ??Wu Yifan answered while letting the airport workers who had boarded the plane to unload the plane walk along the vehicle gangplank to get off the plane: Even the architectural styles are similar. No wonder the other party said that he was a polished commander. And look, there are some areas on the runway over there that are obviously different in color from the ones next to them. They were probably repaired in the past few days, which means this area must have been bombed, but the post-war reconstruction was done well. So, the two mysterious men at the back holding guns and without any markings on their clothes should be soldiers from Da Mao''s side. Not far from the transport plane, there were already several jeeps with military license plates waiting for them. Zhamusu, no surname, this is my contract document. In the 1990s, the military uniforms of the CIS countries were extremely confusing and highly similar in shape and style. Even someone like Wu Yifan, who has been involved in them for a long time, sometimes could not tell which army the other party belonged to. The latter didnt know what his boss was talking about when he went to the Balkans. He just mentioned it casually and did not continue on this topic after receiving a response. ??An officer wearing the rank of colonel stood next to him, followed by two fully armed soldiers. Most Chinese people''s understanding of war basically comes from past war movies, but most of the movies during this period showed World War II, and the intensity was obviously not the same as modern local wars. Therefore, it is difficult for Yan Yong to believe that a person who fought There is such a complete runway and airport in a place that is nearly a month old. Arman Rachmanov, the commander here, of course, is still a mere commander. ?Yan Yong, who was standing nearby, said in Russian with a Buryat accent. ?Even if you stand on the tarmac and look around, it seems to be no different from normal cities in China. ??Wu Yifan took a hard-cover folder and his ID from Yan Yong''s hand and handed them to Colonel Rachmanov opposite. The document is forged, and none of the information on it matches the real person except gender. ?Of course, it can be said to be true to a certain extent, because it was indeed issued by the official Da Mao side, and no one would be able to find out the problem. ?However, these preparations were obviously unnecessary. The other party just glanced at it casually and signed his name at the end of the document. While returning the folder to Wu Yifan, he skillfully put an envelope hidden underneath into his pocket. ?As long as the money is in place, he obviously doesn''t care who the visitor''s true identity is. So... lets go to the place where we are going to build the military camp now? Lao Wu looked at the jeep behind the other party. No, no, no. ?The other party waved his hand: "The place where the peacekeeping units are to be deployed is not in this city. It is in the south of the country, about 300 kilometers away. We have to wait for contractors from several other countries to come over before we go there together. You can move around freely in the past two days. " But Rachmanov took Wu Yifan and his entourage to the side of the motorcade and opened the door for him personally: "Almost all the water and electricity infrastructure here has been destroyed. Three-quarters of the city is dark at night. The only area with 24-hour power supply is blocked. Outsiders need special procedures to enter. In fact, there is not much to do. , if you need it, I can recommend some good restaurants to you. Is there any place to have fun? ??Yan Yong actually means dance hall or bar. ?But Rachmanov obviously got it wrong: There will definitely be, but for safety reasons, I dont recommend you to go for that kind of fun. ? ? Obviously Lao Wu didnt really have fun. At least thats what he told Chang Haonan later. After settling in the temporary residence, the first thing Lao Wu did was to contact Lieutenant Colonel Danny. Luckily, the other party answered the phone, and the former''s worst worry was not that the old acquaintance did not survive until the end of the war. ?But it was Captain Barsac who finally came to meet him. No, he is already a major now. The colonel is going to attend a meeting soon, so let me come over to receive you first. ?Barsak, who was dressed in casual clothes, patted Lao Wu on the shoulder. After the two got into the car, the latter asked in a low voice: I heard that you guys shot down a big guy a few days ago. Is it the same as last time... ??Wu Yifan has not returned to China recently. Even if he did, he would not have the chance to get any inside information, so the only information he knew was what was reported in the public news. ?However, combined with the batch of things Chang Haonan specially asked him to send before, it is difficult not to make people think of it. Thats right. ?Barsac didnt mean to hide anything: Thanks to the shipment you sent last time, otherwise, even if we found the target, we wouldnt be able to capture it. As the officer in charge of the launch unit, he didn''t know much about the two passive detection radars, but he knew very well that although the anti-aircraft artillery shot down the target largely depended on luck, if the S125 anti-aircraft missile was still used, then There won''t even be a chance to try one''s luck at the end. Its actually possible to defeat it ?Wu Yifan''s reaction was basically the same as when Barsak himself first learned the news. In fact, when he first saw the batch of goods, although he listened to Chang Haonan''s general introduction, he still couldn''t understand why such a big effort was needed to transport a batch of electronic components and operation manuals. After all, it doesnt look like something that can turn the situation around. But it turns out it can. ??Although various stakeholders claimed to the outside world that they had achieved victory in the Allied operation, anyone with a discerning eye could see that this operation was almost a Waterloo for the Americans. Yeah, we didnt expect it at first. ?Barsac replied while driving, and then lowered his voice: To express my gratitude, I also prepared a souvenir for you. Souvenir? Old Wu raised his eyebrows. He was basically only interested in money in the past, but after making a lot of money over the years, he also became obsessed with collecting some weird gadgets. You will know when you get there. As he spoke, Barsac skillfully parked the car next to an inconspicuous building: Its just a bit big in size and may be inconvenient to carry around. It doesnt matter. We are in the construction business and have trucks. ?Wu Yifan didnt take it seriously either. After all, it is a "souvenir", no matter how big it is, it can be as big as it is. However. Soon, he saw a dark, irregular piece in front of him, about the size of a person. The words "AF8901" are still faintly visible on it. ifier Lao Wu made a bold guess. But I feel its a little too bold: This cant be "I have confirmed the fragments of the aircraft we shot down in the past two days. They are on the back of the aircraft. Although the area is not the largest, they are in a good state of preservation. More importantly, there is a relatively complete aircraft. Number." ??Barsac patted the fragment gently: "If you find it inconvenient, you can leave it with me temporarily and come back to pick it up when you go back." So this isB2s? Thats right. The major nodded. Lao Wu felt happy at first. After all, no one in the world would have the chance to collect this thing. But in an instant, he realized that this thing might not be suitable for him to keep... (End of this chapter) Chapter 712 Settlement after war Chapter 712 Post-War Settlement In fact, Wu Yifans understanding of B2 basically comes from various news he has heard and seen these days. He probably knows that it is a very powerful strategic weapon. Then Its gone. Although he also majored in aircraft design, he did not study seriously when he was in school, and he was not very interested. He basically relied on cramming and cramming to survive before the exam. After graduation, he threw away his professional knowledge for two years. , has long been forgotten by now, so there is no technical concept. The reason why he felt that this thing was not suitable for him to keep was firstly because he felt that the biggest contributors to the downing of this plane were the comrades on the domestic technical front and the air defense force. Secondly, he was also worried that he was outside almost all year round. If he accidentally If too many people know that they have such a treasure in their hands, they will inevitably make some unnecessary associations. In short, it is safer to find a way to send it back to the country. ??Furthermore, this fragment carries a high commemorative significance. After being sent back, it can further harmonize the relationship with the country - ?Although he has taken a lot of risks in the past few months, compared to the piecemeal buying and selling in the past, he has made money much faster. In addition to the advance payment from the "Friendship Plan", just by transferring a series of technical data from the Azov Steel Plant back to China, he and his partners received profits that were almost equivalent to last year''s entire year. Only four months have passed. Whats more important is that after embracing such a big leg, our expectations for the future are much higher than in the past. Just like some people, after just a casual glance from the goddess, they want to think of a name for their child. Take care of it? Although Lao Wu didn''t know whether the fragments were technically valuable, he originally wanted to hand them over to the state instead of collecting them himself. How could he let others cut them up casually? So he quickly waved his hand: NoI dont mean to Since the 1990s, the army has been having a hard time. If it had not been for cooperation with people like Wu Yifan, it would have starved to death long ago. ?Wu Yifan looked at Barsak. Barsak next to him was naturally unaware of the other party''s brainstorming at this time. He only saw Lao Wu''s eyes shining, as if he was looking at the lover in his dream, so he naturally thought that the other party could not wait to take away the fragments: "So... do you need me to wrap it up for you? Or, if you think it''s too big, you can handle it a little bit." Old Wu nodded: Why do you ask this suddenly? ??The reason why Old Wu knew Colonel Danny was because he had cooperated with him on this type of business several times before. As a close confidant of the latter, Barsac naturally understood what the "goods" the other party meant. After all, the red-top businessman... ?However, as soon as the words came out of his mouth, he realized that he would definitely not be able to tell the other person the truth about the situation, so he had to change his words in a hurry: "I heard that there are a lot of spies from various countries in the Balkans. I just flew here this morning. If I go back right away, everyone will know that I must have gotten something here, and it will attract unnecessary attention." Speaking of which, since Ermao asked you to be responsible for the construction of the military camp, you must have raw material supply channels and construction capabilities? And now a war has just been fought. Although it is a tragic victory in terms of the result, on the surface it is a fair ceasefire after all. Moreover, judging from historical experience, it is still difficult to get war reparations from the Americans. So much higher. Ahem. Looking at the fragment of the plane in front of him, Old Wu had already begun to enjoy the fact that he was at the pinnacle of his life. "It''s better to leave it with you first. When I need to return later, I can take it with me in my... uh... cargo. You know, I''m professional in this regard." ?Thinking of this, Balsac suddenly changed the topic: More importantly, the economic sanctions imposed by the EU have not been lifted. You should understand that this thing will definitely not be seen by others for at least a short period of time, so you can only appreciate it by yourself The latter nodded: "The most important part of the piece is the one with the serial number on it, so you can cut out the less important parts and that would be more convenient if you really want to keep it as a personal collection." , such as...making it into a craft and framing it." "certainly." So there will most likely be opportunities for cooperation in the future. For Eastern Europe, construction raw materials are not a problem at all, and his engineering team comes from an engineering brigade that he has cooperated with in Sanmao. The major shrugged: "Although the war is over, you should also be able to see that the entire country''s production was almost completely destroyed by bombing, so we need people to be responsible for post-war reconstruction. Europe and the United States are still sanctioning us, and it is difficult to find people with suitable efficiency and price. people to do it. Thats no problem, I also have a lot of legitimate business ??Wu Yifan felt that he had to bring the team over anyway, and there was actually no difference between staying for half a month and half a year. But after agreeing, his tone changed: However, in business, you must also have a reliable payment method, whether it is precious metals, US dollars, euros or other hard currencies. Im afraid it will be more difficult to use US dollars and euros, but the current idea above is to exchange for the mining rights of several mineral veins in the middle. This answer surprised Lao Wu: "How could you, a major, know this?" "Colonel Danny is now our national hero, and he has accepted an invitation to join the Council." Thats it ?Wu Yifan lowered his head and hesitated. ?This exchange is indeed very tempting. ?The mineral vein in the central Balkans is a rich gold mine. If you can get the mining rights for 10 years or more, you can definitely make a lot of money. But if he calms down and thinks about it, this kind of investment cycle is too long for him. ??And if he wants to operate a gold mine for a long time, he will definitely not be able to continue to wear the skin of a "Buryat businessman". After much thought, it would be safer to find another way of cooperation. So he shook his head: I am in the business of making quick money. Mining is too big and returns funds slowly, so it does not meet my investment standards. However, I have been doing foreign trade business over the years, and I have met many large companies that have the ability and willingness to do so. I can serve as an intermediary and contact you. ??Barsak just asked casually after thinking about this, and did not continue to pester. He just left a new contact information for Lao Wu. A few days later Huaxia, Beijing. ?Chang Haonan was also discussing with Ding Gaoheng the topic of the follow-up impact of the Allied operations. "Yesterday afternoon, three of our military observers have arrived in the Balkans in advance to supervise the implementation of the ceasefire agreement and reconstruction work. A company-sized peacekeeping organization has also begun to be deployed from various military regions. It is expected that after the temporary camps are completed, the final It will be available as late as August this year. Ding Gaoheng is obviously in a very good mood today. While making tea, he is talking about what happened in the week after the ceasefire agreement was reached: This is the first time that we have sent an organized security force to perform a peacekeeping mission, which is also a precedent. Normally, peacekeeping tasks have little to do with the military technical department, but after all, this was the idea that Chang Haonan first proposed. ?Although the specific execution process is almost completely different from the original plan - Even Chang Haonan did not expect that the effect of the 200 VDV Superman would be so immediate that the United States directly proposed the establishment of a multinational peacekeeping force, directly giving up some chips to China and Russia. It wont happen anymore. In addition, this morning, the exchange rate of the euro against the U.S. dollar has risen to 1:1.1100. It has finally been able to keep it from falling below 1:1, otherwise it will be a big trouble for us..." Seeing Ding Gaoheng finish making tea, Chang Haonan quickly picked up the teapot and poured water: "Thanks to the fact that on the 18th, the EU acted like a fool and did nothing the whole time... So the international market first learned about the suspension of Allied operations, and only a few hours later did it know that the hotel was occupied by the Americans. Raised." If this process were reversed, Im afraid the panic in the intervening few hours would be enough to pierce the euro... This detail should have been taken into consideration at that time..." At this point, he still felt a little scared. After all, the core of the entire Balkan crisis is actually the fight for the euro. Ding Gaoheng was very open-minded and comforted him immediately: "It is impossible to 100% avoid accidents in the execution of a plan, so when making plans, especially macro plans, you should focus on the big and let go of the small. If you really focus on the details, it will lead to a loss of flexibility. Once a certain step occurs, Problem, it will be easy to lose everything later..." "Now that there is a second currency in the world to compete with the US dollar, we have won a big win anyway, not to mention that this time we also broke the American military myth, with an F117 and a B2. But its a big profit. Speak of this. ?Chang Haonan stopped picking up the tea cup: "Before I came this time, Lao Wu contacted me through the company and said that he had obtained a piece of debris from the B2 bomber. Also, he was currently preparing to exchange the mining rights of a gold mine vein for a complete war machine. Post-reconstruction project. There are actually two main ways for Wu Yifan to contact the country. If it is through the company, it will be directly contacted by Chang Haonan; if it is through an overseas agency, it will be contacted by the relevant domestic departments. Because of well-known reasons, the foreign agencies in the Balkans are currently in a highly sensitive stage, so the former path is safer. ??Although Chang Haonan''s tone was so calm that there was almost no change in tone, the content he said made Ding Gaoheng shake his arms and almost spilled all the tea... (End of this chapter) Chapter 713 Let Americans help eliminate wrong answers Chapter 713 Let Americans help eliminate wrong answers Is there such a thing? ??The latter didnt even have time to wipe the water stains on his shirt: When can he be sent back? Im afraid it will take a few months. Chang Haonan hesitated for a moment and then replied: He went there as a construction contractor. If he left too quickly, it would arouse suspicion. And even if we get the fragment back, we wont be able to display it publicly in a short period of time. We can only put it in a classified warehouse and wait for decryption in the future. In fact, the content that Lao Wu contacted him through the corporate route was all encrypted. On the surface, it was usually some normal business documents that required translation and the information density was very low. Therefore, the other party just told him to wait until he left the Balkans. It will be brought out together when the time comes, and no specific timetable is given. So Chang Haonan can only deduce it reasonably. The exhibition is secondary. Ding Gaoheng waved his hand: Based on material science theory and current preliminary research, this is the case. It is very difficult to transmit a picture through confidential means these days. Therefore, Chang Haonan has not seen the fragment yet and can only make some general judgments based on Lao Wu''s text description: "There must be some. At least we can analyze the specific substrate material used in the other party''s stealth coating, and give us a reference for ideas...or to be more precise, help us rule out a wrong answer." "Um" The aircraft was burned first and then bombed again. The specific properties and structure of the coating material must have been changed beyond recognition. Even if you want to reverse engineer it... it is not feasible. Why do you say it excludes a wrong answer? "and" "I mean, will it have any research value? I mean...in terms of stealth." "According to current public reports, the stealth coating used by the Americans is very delicate. Take the B2 as an example. It requires maintenance of the coating after each mission. Considering that strategic bombers have a long mission, they are prone to failure at every turn. It takes dozens of hours to fly, so in most cases it needs to be repainted, which costs millions of dollars alone. ?Chang Haonan took a sip of tea and continued to add: "Um?" ?This answer was obviously a bit convoluted, so it took Ding Gaoheng a few seconds to react: The only country that currently has applications for stealth materials is the United States. According to common sense, even if you dont want to copy it, you should continue to explore in the other countrys direction. "And in order to ensure that the coating does not fail, the aircraft must be parked in a special hangar with constant temperature and humidity. Even if it is not taking off, it must be inspected and maintained regularly... In short, based on the objective conditions of our country, in the laboratory Its okay to do some research, but if you want to make samples or even put them into use in large quantities, its definitely not possible of this nature Not to mention special hangars with constant temperature and humidity, the Chinese Air Force now doesnt even have many hangars that can protect it from wind and rain. Most of the aircraft are parked in the open air. A few years ago, due to typhoons, the entire army lost more than 100 aircraft at one time. Half of the available third-generation machines. I know that in addition to the appearance of stealth aircraft, absorbing materials must be coated on the surface of the aircraft body to reduce RCS reflection, just like the anechoic tiles of submarines. Ding Gaoheng also nodded with a look of enlightenment after hearing this, obviously agreeing with Chang Haonan''s statement: In other words, will there be a material that can satisfy long life, high resistance and wave-absorbing properties at the same time? ?Only a few airports in the north have reinforced aircraft forts built during the war preparation period, but they were originally planned to accommodate J-6s and J-7s, which obviously did not meet the requirements just mentioned by Chang Haonan. Chang Haonan naturally knew that this thing must exist, because even the Americans themselves had changed their technical route when developing the F35 and used coating materials that had less extreme performance on paper but were more worry-free. Otherwise, I really cant afford to serve you. Money comes second, as long as the money printing machine is used. The key is that the flight frequency and equipment quantity of tactical aircraft are much higher than that of strategic bombers. The average monthly working hours for stealth coating maintenance is simply outrageous. There are really not so many people. Come to work. However, he obviously couldnt speak too fully at this time, so he added another sentence: "Of course, in terms of specific operations, we still have to wait until we carry out technical research before we can obtain more reliable data. If we can analyze the material base used on B2 this time, we can reduce investment in this direction and use resources Concentrate on several other types of technologies. "oh" This is obviously a bit different from what Ding Gaoheng had expected when he first heard the news. ?But on second thought, it is better to have a reference than nothing. The current situation is much better than initially expected, and it seems that we should not be greedy and swallow the elephant. After all, just three years ago, the aviation industry was still worried about the possibility that a domestically produced second-generation semi-fighter aircraft would not be able to enter service on time. Today, three years later, he has already begun to think about when the troops will be equipped with stealth aircraft. Its true that its a bit too far. Ding Gaoheng reflected on himself for a while and finally came to the conclusion The person who caused him to drift should still be the one pouring himself tea in front of him. ??Moreover, if you really calm down and think about it, because the starting point is too low, although you can hear news of rapid technological advancements almost every month in recent years, when it is actually implemented, it is still in a state where the third-generation domestic aircraft has not yet been put into service... Ahem Ding Gaoheng warned himself in his heart that as the person in charge of the military industry system, he could not lose his mind under any circumstances. So, he immediately switched to a more realistic topic: Speaking of which, I saw the report submitted a few days ago. Jiang Zhongs forging press will be put into production soon? The jump in thinking is a bit big. Fortunately, Chang Haonan has been following up on this matter in Jiangcheng in the past week, so his brain can still keep up: "It may not be officially put into production yet. Now the equipment has been installed and various subsystems are being tested. If there are no problems, trial production will probably start early next month. The plan is to build a batch for Factory 112 first. The J-11Bs titanium alloy bulkhead replaces the welding process of the old aircraft. "Trial production may last one to two years, because I designed a core component life detection and automatic compensation system for that forging press. The reliability of this system can only be determined after a certain amount of time and processing volume verification. Ding Gaoheng is semi-professional in precision instruments, and his eyes suddenly lit up when he heard this: Automatic compensation is similar to that on high-end CNC machine tools... "right." Chang Haonan replied: This is the inspiration I got from my previous communication with engineers at C.B. Ferrari through their competitors technology, which can automatically correct and compensate for the mechanical geometric errors of the equipment, reducing standby time and maintenance costs. "This technology requires a lot of experience and accumulation of production data, so although the development cycle is not long, it is very complicated to debug. However, once debugged, this system can be extended to most common presses, and it will even be able to follow Like those European companies, they make more than half of the profits in the industry by selling industrial control systems and let foreigners work for us..." Especially the package agreement signed with Europe this time, which has almost eliminated all barriers to trade in computer software and hardware, and is very valuable for us to go overseas and seize the market... Soon it wont just be Europe. Ding Gaoheng picked up the tea cup, put it to his mouth and blew gently: Dont tell anyone about the internal information from the Ministry of Commerce and Trade. "After the end of the Allied Forces Operation, the United States suddenly became more enthusiastic in promoting negotiations on our accession to the WTO, and took a step back with us in several areas such as agriculture and communications. If nothing else, we will be able to complete the negotiations before October 1 this year. The matter of joining the WTO is completely finalized! (End of this chapter) Chapter 714 Chang Haonan’s progress Chapter 714 Chang Haonans progress "So fast?" Chang Haonan was stunned after hearing this. He had already expected that the attitude on the other side of the ocean would loosen. After all, with the setback of the Allied operation, this cabinet has basically messed up everything. Agriculture, finance, military industry, energy ??Except for the technology industry, which is still barely maintaining a 50-50 split, all other decent interest groups have basically been offended by the Donkey Party. Especially the massive cuts in military spending since the end of the Cold War have already made quite a few people dissatisfied. ? And now with the setback of military operations, this dissatisfaction has finally found a channel to vent - Let you blindly cut military expenditures. Is it okay now? ??Back when we were engaged in Operation Desert Storm, we were chopping melons and slicing vegetables. In less than ten years, the army has already degenerated to the point where it would even go wrong when attacking a small country in Southeast Europe? The result is that the Elephant Party next door has gained an unprecedented lead in the polls even though it has done nothing. Comparing one person to another will lead to death, and comparing goods to goods should be thrown away. Chang Haonan replied in a cautious tone: From an effect point of view, the closer to the election, the better. If you act too early, everyone will probably forget about it in a year or two. How to deal with the Americans specifically should have been the business of the Ministry of Foreign Trade and Economic Cooperation, but now, if not playing most of the role, the military-industrial complex has at least played a key role in the final step. But Congress still has to struggle. Now the only card the Donkey Party can play is to open the Chinese market to American companies. "too fast." Although Wang Yuzhong himself doesnt know it, he owes me a big favor this time..." Joining the WTO can basically be said to be Chinas most important national policy in the entire 1990s. ?However, what surprised Chang Haonan was that the other party was so impatient. ?Although the Mr. Bush before was not that good, compared with the current owner of the white house, he seemed not so unacceptable. Just hit it with one punch, so as not to get hit by hundreds of punches... Ding Gaoheng''s interest was so high that he couldn''t keep his lips down: We have been wrangling at the negotiation table for so long, but in the end it is more effective to fight people back on the battlefield. Otherwise, I might not be able to play in the 2008 season. After all, there is still a year and a half left. According to the past behavior of Americans, it seems unreasonable not to use extreme pressure. ??I''m afraid that by the time the meeting is scheduled next year, the Science and Industry Committee will be among the top five directly affiliated agencies. I feel that the Americans did not compromise with us simply because they were desperate. ?Of course, this matter is extremely confidential, so in the eyes of people in the business system, it is like being hit by a piece of pie falling from the sky. It is purely luck on one''s side in the black swan incident. ??If you give away this credit, you wont have to play anymore. But the superiors can obviously understand. Many people even began to regret not allowing the former to be re-elected in 1992. In short, in the White House, the next one or even two sessions can be strategically abandoned. It is better to start preparing for the 2008 season in advance. "Although China''s accession to the WTO is also good for them, logically speaking, it is impossible to end the wrangling so quickly. Just the opening conditions obtained by different industries in our country will hardly be equal. Like this time, In order for us to make concessions in terms of opening up the agriculture and technology industries, the other side even agreed to transfer some parts suppliers to us, just like Airbus. "This should be a good thing for them...I mean, at least for Boeing, right?" Ding Gaoheng said: We have also promised to purchase a share of Boeing aircraft in the next five years, so that at least they dont have to worry about all the Chinese market being taken away by Airbus. Well...if we look at it from a rational perspective, it is indeed like this. Chang Haonan smiled: But for Americans, the terms of reciprocal exchange are basically equivalent to suffering a loss, and they should not agree to such a smooth offer. Ding Gaoheng next to him paused for a moment. ??Although as the leader of the military industry system since the 1990s, he has not had many direct interactions with Americans, he can tell that what Chang Haonan said seems to be correct even if he only hears things from other departments. In terms of negotiating conditions, he is indeed quite confident. After clarifying the direction of his thoughts, he quickly thought together with Chang Haonan: So, do you think they might be out for revenge? It really saves effort to talk to smart people. "Probably" The latter nodded: "It''s only been a week since the Allied Forces Operation officially ended. I guess they haven''t even taken the blame yet. As for how the B2 was shot down and why the bomb deviated from the target, I believe they will investigate in the future. Come out, but certainly not now. "So, in the eyes of the Americans, the main reason we ruined their affairs is to support the euro at the most critical moment. Otherwise, before the next thing happened, they should have pushed the euro''s exchange rate below 1 "Looking at it this way, it is normal for them to want to open our market and retaliate in the trade or financial fields. After all, we are still relatively new in the field of international trade. After the market is opened, we will not be able to do business with foreign countries, especially European and American companies. Its impossible to do business without paying some tuition fees. Ding Gaoheng nodded repeatedly with a rigorous explanation, but this aspect was not within the scope of the Science and Industry Committee, so he shouldnt interfere too blatantly. Furthermore, his experiences in recent years have left him with no particularly strong will to intervene: I will mention it to the Ministry of Economic and Trade in private and ask them to be more careful. Ding Gaoheng put down the tea cup in his hand, stood up and returned to the desk: "However, the WTO has been included in it, and the level of openness will be improved sooner or later. There are hundreds of domestic industries, and we can''t **** them all according to the nanny model, so as long as we can play a protective role in the lifeline industry, the remaining Its not a bad thing to let them experience the international market environment of survival of the fittest..." This attitude coincides with Chang Haonan''s thoughts. Even if you are raising children, you have to let go one day. ?Especially for some fields that are already stagnant, throwing a catfish into it may have a positive effect. After a few more casual conversations about WTO matters, Chang Haonan was ready to get up and leave. ?He came back this time to submit his graduation thesis and complete some graduation-related procedures. ?Although most steps can be done by someone, in this era without electronic systems, it is still unrealistic to remain completely anonymous because it involves some work such as identity verification. However, just as he finished saying goodbye and wanted to leave, he was stopped by Ding Gaoheng: Wait a minute, Xiao Chang. ?Chang Haonan turned around. "During the previous meeting at Sanzuomen, Lao Fu said that you played a very important role behind the scenes in this Balkan crisis. However, it seems that this role cannot be made public in the short term and can only be made public through other means. Ill give you some compensation. Ding Gaoheng said as he bent down, pulled out a file bag from the bottom compartment of the filing cabinet next to him, and placed it on the table in front of him. Obviously it means letting him take it apart to see the surprise. ?Seeing this scene, Chang Haonan didn''t show any pretense. He sat in front of the desk again and quickly opened the file bag. There are two documents inside. Decision on reorganizing China Aviation Industry Corporation into China Aviation Industry Group and China Aviation Power Group Seeing the title of the document, Chang Haonan then remembered that the period of the Balkan Peninsula crisis happened to be a critical stage for the implementation of policies after the annual conference. The Aviation Industry Corporation of China should have been dismantled together with the other four major corporations a year ago, but it was only extended for another year due to its own reasons. Now is the time to complete the historical mission. The superiors agreed to spin off the subsidiaries of the original Aviation Industry Corporation that were involved in aviation power research and development and production according to different business scopes, and establish a new aviation power group separately. Ding Gaoheng leaned his upper body back on the chair and straightened his hair, which was already thin: "Moreover, for the Aerospace Power Group, we are conducting a pilot project on the enterprise management mechanism. Instead of vertical management by multiple ministries and commissions according to their respective functions, the business management rights will be unified into our National Defense Science, Technology and Industry Commission, and the administrative management rights will be centralized. It will be unified into a newly established National Asset Management Office for centralized management. ?While Ding Gaoheng was introducing it, Chang Haonan also read the details of the document as quickly as possible. The latter felt that his heart was beating a few beats faster. This idea of ??vertical split was indeed first proposed by him, Du Yishan, and Liu Zhenxiang. But compared with the aerospace power group itself, the latter one is more important. ?Although it is only being piloted on one enterprise, this National Asset Management Office obviously has the intention of the later State-owned Assets Supervision and Administration Commission. This may be the greatest influence he has had in the country since his rebirth... It is indeed a huge surprise. ?However, its not big enough. Ding Gaoheng told him not to get too excited and look at another document. ?Chang Haonan lowered his head again and turned to the back. ??It is also a decision, but the title is blocked by the one above. ?But thats not important. Because there is only one sentence in it. After discussion by the organization and approval, Comrade Chang Haonan is now appointed as the chief planner and team member of China Aerospace Power Group from July 1, 1999. ?) ?Even though Chang Haonan had been somewhat mentally prepared before, he almost dropped the things in his hands to the ground. The chief planner himself generally does not have an administrative level. usually held concurrently by an important second-level department leader. But the value of the members of this team is indeed worth hundreds of millions of points... (End of this chapter) Chapter 715 Sorry, I just thought of it too Chapter 715 Sorry, I just thought of it too So, is this compensation satisfactory? Ding Gaoheng, who had his legs crossed, was smiling. ?Chang Haonan is still a layman after all, and he never denies this. Im so satisfied, thank you to the organization for their unconditional trust in me! Therefore, facing this rocket-like speed of promotion, he did not hide his happiness: ?At this time, it would seem too deliberate to tuck your clothes into a deep outfit. ?It is a good thing that the city is deep, but it may not necessarily be seen that the city is deep. Dont give high hats to the organization either. Ding Gaoheng waved his hand: The second-generation improved Flanker airframe with internal number 9902/803 has been designed at the beginning of the year and will be used in all subsequent improved Su-27 models produced by Factory 112 and the Komsomolsk Factory. "Furthermore, the position given to you is that of a chief planner, which is usually not set up separately, rather than a deputy general manager in charge of a certain business. This is also considering your age and your lack of experience in directly managing a very large organization. You need to work in Torch The group needs to practice for a while. ??Chang Haonan''s achievements in the past two years, even if only the non-confidential parts are shown, are enough for at least dozens of Ph.D.s to be successfully graduated. Mr. Chang, as usual, trial production usually involves building an ordinary C-shaped beam or other partition frame structure with a relatively simple shape. If my guess is correct, Torch Group may be subsumed under the Aviation Development Group within three years or by the end of this year or next year. Second, he is a team member directly under the state-owned enterprise. He is even a central management cadre at the appointment level. It is impossible to simply give him an "agent" title and be in charge of the work like the Torch Group. As for why it is stated that the appointment was made on July 1, 1999, it is easy to understand. ?Chang Haonan nodded to show that he understood: "So I have told Factory 112 that they will send the latest structural design results and the process parameters of the rear fuselage frame of a fighter jet, and we will conduct trial production. Of course, if the trial production process goes well, then It will soon enter the formal production stage. ?After finishing all the matters before graduation, he returned to Jiangcheng again and prepared to follow up on the trial production of the heavy-duty die forging press. Ding Gaoheng said half-jokingly: Furthermore, if you fail to obtain a doctoral diploma this year, this appointment will automatically become invalid..." It can be considered as cooling down. There are still three months until I officially start my job. ?Including Chang Haonan, several leaders of the die forging press project team wore safety helmets and walked next to the forging press, which was as grand as a tall building. The speaker was Yan Yongnian, who was holding an engineering drawing in his hand: "However, when our forging press is put into trial production, there should be many leaders, including senior leaders, coming, and I heard that Airbus has also applied to send people to visit. Many of them are experts. If it is just Producing the same workpiece as other hydraulic presses will not fully reflect the power of our equipment. " "The trust of the organization is also gradually increasing. It is impossible to entrust important tasks just because of one or two things, or the recommendation of one or two people. Especially in your case, it is definitely an exceptional promotion, so although you have not reached the level, you are still in the middle management Sequence, the final decision to make this appointment must be made after comprehensive consideration. At this point, the two people facing each other laughed. Chang Haonan was also involved in the aviation industry in his last life, so he naturally knows the gold content in it: When Chief of Staff Fu said it before, I was thinking that it might take a while to cool down, but I didnt expect that it would happen so soon The sudden appointment at the departmental level did not bring much change to Chang Haonan''s daily work. The hardware installation of the die forging press body has been basically completed, but the trial production is not only about starting up the equipment, but also about producing a complete and usable product according to the process requirements. So I have to wait until I officially graduate. ?First of all, the Aerospace Power Group is still in the preparatory stage. There is currently only one preparatory leadership group, and July 1 is the official unveiling day. The only exception is that Russia cannot sell models using this second-generation airframe to countries surrounding China. Compared with the first-generation improved airframe that only carried out structural reinforcement and added a pair of inner wing mounting points, it is basically equivalent to resetting the structural design of the aircraft while retaining the aerodynamic shape. Through more reasonable The weight reduction design is suitable for lighter radars such as 1493 or Beetle, and a retractable aerial refueling device and fuel supply pipeline are reserved at the nose position to support the installation of fuel liquid cooling equipment. However, the new body involves several key integrated die-cast parts, a large number of titanium fasteners and a larger proportion of composite material application area. For China, there are certain production technical barriers. Therefore, the No. 803 verification machine previously used to test the 9902/803 airframe was completely produced by Komsomolsk, but the test data was shared by both parties. But if you want to mass-produce the fully upgraded J-11B, then these difficulties must be overcome. If this is the case, the look and feel of the trial production will be much better, but there may be foreigners among the visitors, which will not be good..." Dont worry about this. While speaking, Chang Haonan had already led a group of people back from the production workshop to the nearby process research and development center, and sat down in a conference room: "Visiting the production process is just a long-distance view at the entrance of the production workshop. Let alone the control room, even the equipment itself is impossible for them to get close to. The production process cannot be deciphered by just looking at it from a distance." ??????Then there is no problem on my side. The equipment software and hardware are currently normal, and the remaining debugging work needs to wait until the car is started. " ?Yan Yongnian put down the folder in his hand. ?Chang Haonan turned his eyes to the other side: Then Professor Lin Jingtang from the forging process group will introduce the development of titanium alloy isothermal forging forming process. The forging process team has a special position in the die forging press project team. They only joined in the middle of last year and are relatively independent in business. The focus of their research is not the die forging press equipment itself, but how to use the new equipment. Produce parts that meet process requirements. But when they were dismissed, the equipment itself was often still under construction, so their research was always suspected of being slightly out of touch with actual production, and they were not taken very seriously before they participated in the development of die forging presses. Fortunately, Chang Haonan himself has a background in numerical calculations and understands the importance of process flow calculations very well, so he added them to the team midway through the project. Good Mr. Chang. ?Lin Jingtang nodded, then connected the laptop he brought with him to the projector and began to introduce his research results: "The metal plastic forming problem is actually a boundary value problem. For rigid viscoplastic materials, the boundary value problem can be described as: at a certain stage of the quasi-static deformation process, the geometry of the deformed body, the internal temperature distribution, The uneven state of deformation and the current material parameters, and the velocity vector is given on the velocity surface and the surface force is given on the elevation surface, then the solution to this problem is the stress that satisfies the basic equations and boundary value conditions of plastic mechanics. Solutions for field and velocity fields. "In previous research, we found that materials that satisfy the rigid viscoplasticity assumption obey the Mises yield criterion and its associated flow criterion during the molding process. In all velocity fields that satisfy the dynamic admissibility condition, the true velocity The field will always minimize the total potential energy of the deformed body." Mathematically speaking, it is equivalent to solving a functional minimum problem with volume incompressibility constraints. This is also the theoretical basis for our subsequent numerical calculations of all metal forging and forming processes. "We have already submitted a calculation application to the Institute of Computing Technology of the Academy of Sciences. Regarding the aircraft partition that Mr. Chang just mentioned, if the size is not particularly exaggerated, it is expected to take about 3-4 months to calculate the results. It should be able to make it in time for the National Day. Before, I gave you a gift for the 50th anniversary..." ?Chang Haonan listened very patiently to Lin Jingtangs introduction of his research content. It should be said that the idea is still relatively new. Especially the part that uses Makarov''s variational principle to solve the molding problem of rigid viscoplastic materials. ?However, after hearing the end, Chang Haonan still frowned slightly. ?The other partys solution certainly cannot be wrong. Just not clever enough. So it takes 3-4 months. Professor Lin, regarding the problem of solving the functional minimum, I have an idea. Of course, it is not guaranteed to be correct. You can try it. Chang Haonan looked at the page full of formulas on the curtain, thought for a moment, then stood up, pulled out a drawing board, and scribbled on it: In the actual calculation process, it should be difficult to find a velocity field that satisfies both the velocity boundary and the volume incompressibility condition. However, the volume incompressibility condition can be introduced into the functional formula, so that it can be transformed from a constrained functional function. is a new functional without constraints. For example, if you introduce a Lagrange multiplier into functional 27 on your PPT, you can get a new functional that is easy to solve by variation. Of course, there may be many specific volume invariance conditions. For example, introducing a penalty function should also have a similar effect, so I wont repeat it again... ?Lin Jingtangs expression was relaxed at first, and then serious. Then came the sudden enlightenment. Finally returned to ease. ?After his expression changed like a revolving lantern, he slapped his thigh suddenly and made a crisp sound: I didnt expect Mr. Chang to also conduct research on metal plastic forming... If we had known this earlier, we should have discussed it with you before entering into research and development... Hearing these words, Chang Haonan quickly waved his hands: I have no research on your topic, I just have some opinions on the mathematical topics of solving functionals and strongly nonlinear partial differential equations ?Lin Jingtang frowned and realized that things were not simple: Then...this is what you wrote. Ahem ?Chang Haonan put down the pen in his hand: I just came up with it while listening to your introduction...a little bit of insight, a little bit of advice, a bit of advice... (End of this chapter) Chapter 716 Poaching Chapter 716: Poaching ?Although Chang Haonan said that he was just trying to attract new ideas, Lin Jingtang has been immersed in process numerical calculations for many years and basically belongs to the type that can be solved with just one click. Even if only based on the content of theoretical calculations on the current drawing board, this seemingly unremarkable new algorithm can greatly reduce the amount of calculations in the process of solving the velocity field, which happens to be the most time-consuming part of the entire calculation process. Relatively large portions. Unfortunately, Factory 112 has not yet sent over the specific process parameters, so more specific calculation steps cannot be started yet. For the time being, we can only test several classic volume incompressibility conditions from the perspective of theoretical model research. Universality under one problem. In addition, Mr. Chang, before the equipment is officially powered on and started, we need to separately test the working status of the hydraulic synchronous correction system... The fatigue analysis and reliability testing system we are responsible for here is currently performing open-loop testing Stroke sensing measurement system of main working hydraulic cylinder Under the command of Chang Haonan, the progress reports of each subsystem and the next work plan were summarized one by one. And in his mind, a relatively accurate and complete timetable gradually formed... This is completely opposite to what happened later. "No!" Yan Yongnian has been stationed in the factory about a year ago and has never left including the Spring Festival this year. Naturally, he is the most qualified to answer this question: "In the beginning, our place shared the power supply network with the neighboring Tuan County. There were still many problems at that time. However, later, Jiangcheng local government designated our area as a new industrial zone and specially approved a special power supply line. And without being affected by urban power usage planning, voltage stability and the number of power outages have been greatly improved. This type of power outage due to force majeure is acceptable, as long as it does not occur frequently and affects production. If we put it aside more than 20 years later, there would be almost no need to worry about such problems. However, in this era, we are still on the eve of a major upgrade of the power system. Although a power outage in an entire city cannot be said to be a daily occurrence, it can be regarded as a daily occurrence. happens sometimes. To sum up, most of the work items in the cold car state have been completed, and only a synchronous correction system needs to perform a separate open-loop test. The last unplanned power outage here was probably in February this year. Before the Chinese New Year, the power supply line from the substation was crushed by ice. It took about 30 hours to restore. Many high-end residences even have their own diesel engines. ?Chang Haonan nodded slightly: "Since there is no problem with the power supply, we will tentatively schedule the first power-on test of the equipment on May 13th. If no problems are found in the self-inspection and external inspection, we will start to warm up the hydraulic equipment on May 15th. Officially entering the device startup process, are there any questions? Hence, having a dedicated power line can basically avoid most power supply problems. How is the power supply in the new factory? Have there been any power outages or voltage instability during the construction process? ?At the turn of the century, if the power grid faces the risk of overload, it will generally choose to give priority to ensuring industrial power consumption. In view of the occasional loss of energy supply, we took this issue into consideration when designing. The safety locking system is in power-on release mode, so you dont have to worry too much. ?Chang Haonan raised his head and shifted his gaze from the notebook in front of him to the several responsible persons on both sides of the conference table: Thats it for todays meeting, adjourn! However, for extremely large equipment such as die forging presses, and surrounded by a whole new factory area in Jiangzhong, the power consumption level after operation is quite terrifying. Relying on self-prepared emergency diesel generators is a drop in the bucket, so power must be guaranteed by the local area. Just keep doing it. ?Several other people answered in unison. After the meeting, Chang Haonan found Yan Yongnian alone in the factory who was doing a routine inspection of the workshop. For Chang Haonan, the die forging press is only one of two large-scale projects that are being carried out at the same time. But for the latter, it is a career that he has been fighting for most of his life and almost missed. Yes, so his level of care is higher than that of the chief designer Chang Haonan. The two stood on the visual inspection platform on the second floor of the workshop, watching workers not far away climbing up and down the frame, installing some auxiliary equipment that was finally in place, as well as decorations that did not perform actual functions. For example, there are four huge Chinese characters for "Jiangcheng Heavy Machinery". For a treasure like the super-heavy die forging press, which has only a few machines in the world, Yan Yongnian even suggested giving it a name similar to a warship, not to mention just listing the production company. In the end, he was rejected by Chang Haonan because he was too middle-class. I didnt expect that in two years, I would be able to build this equipment from scratch... Yan Yongnian pushed the brim of his helmet with the antenna of his walkie-talkie, and said to Chang Haonan who had just walked up next to him: Its a pity... Mr. Shen didnt get to see this day. ?The design of this 75,000-ton die forging press, as well as a considerable part of the technology, are based on a 68,000-ton prestressed steel wire winding die forging press developed by Qinghua University in the late 1980s. Academician Shen Hong was the person in charge of that project at that time and was also Yan Yongnians teacher. ?Chang Haonan also made a special trip to visit the company before the die forging press project was established. In May 1998, Shen Hong passed away at the age of 92. ?At that time, we were in the most critical stage of transforming the equipment from drawings to physical objects. Therefore, Yan Yongnian, who was too busy with other tasks, did not even make it to attend the funeral of the other party. Looking at Yan Yongnian who was thinking about people after seeing things, Chang Haonan felt that the effect of simple words of comfort might be average. ??Moreover, he really hopes that this legendary academician with a primary school education who has devoted his life to China Machinery can be remembered by more people, at least more practitioners: "I propose that after this die forging press completes its first trial production, the remaining parts of the blanks can be used to erect a bust of Academician Shen in the Jiangcheng factory to commemorate the work he has done for this die forging press. efforts and contributions. Yan Yongnian suddenly turned his head to look at Chang Haonan, his eyes trembling. After a while, he nodded: "good." Then the two of them walked off the examination table one after the other. Professor Yan. After walking around the workshop for a few more times, Chang Haonan directly performed a trick: I remember that you have several doctoral students who participated in the entire numerical calculation process of our project. Are any of them graduating this year? There are two graduates this year. Yan Yongnian replied almost without thinking, obviously not realizing the seriousness of the problem: Why do you ask this suddenly? ?Chang Haonan is not prepared to conceal his purpose: After I graduate this year, I plan to set up a laboratory of my own. Of course, it will be based on the school-enterprise joint model of Beijing Hang University and Torch Group. Now there is a shortage of manpower, especially graduate tutors. Hissif you dont tell me, I will almost forget that you havent graduated yet Now Yan Yongnian understood. ??This is to poach him... However, because of the foreshadowing just now, if he refuses now, it will seem too inappropriate. So, after hesitating for a moment, Yan Yongnian nodded: After they go back, Ill ask them to submit their resumes to Beijing Airlines... Anyway, they have experience in this project, so it shouldnt be difficult to pass... (End of this chapter) Chapter 717 special gift Chapter 717 A special gift After the completion of the PY transaction, Yan Yongnians two protgs were assigned to Chang Haonan. Of course, starting in 1996, the graduate package allocation system gradually began to be cancelled. Even before that, more and more college graduates chose to skip the allocation and work on their own because they were not satisfied with the treatment or location of the assigned job. Contact your workplace. After all, it is not more than twenty years later. In the 1990s, graduate students and even undergraduate students were still relatively popular in the job market. ?But the situation on Chang Haonan''s side is obviously different. ??Whether it is Torch Group or the school-enterprise joint laboratory jointly established with Beijing Airlines, there is a bright future that can only be seen by the blind eye. ?Especially since those two people have done projects with Chang Haonan, they can basically integrate seamlessly. Its a pity that Yan Yongnians choice of successor may have to be postponed again. By the way, Mr. Chang, there is one more thing I almost forgot. Chang Haonan also took off his helmet and work clothes, hung them in the closet with his name on them, and put on his coat again: No wonder I didnt see Lin Qingsong and the others when I came here this time. By the way, of course it can be said that they have trained a group of technicians in the weapons industry system. ? Later, with the establishment of the Equipment Industry Department, the die forging press R&D team, including the entire Jiangcheng Heavy Machine Tool Factory, had its own company, so naturally there was no need to borrow money from others. When the die forging press project was first established, because there was no money, and more importantly, there were no staff members, so under the arrangement of Ding Gaoheng, it was conducted under the Northern Vehicle Research Institute in Huaishuling for research. ?Originally, Chang Haonan was going to promote him to the project leadership team, but the other party considered that while participating in the die forging press project, he would also be responsible for the unit''s heavy equipment research and development, so he did not agree. Comrades from the Northern Institute have completely withdrawn from the project team? ?Chang Haonan waved his hands, looking casual. ? Yan Yongnian and Chang Haonan walked towards the living area on the other side of the factory one after another: When I came here last time, Mr. Zhu there said that he would send a special thank you letter to our project team... Well, most of the main forces in the weapons industry have been transferred to Tongzhou to support the 9910 project, so only a few comrades in charge of materials and files are left on our side to finish the work. ?Lin Qingsong is one of them. Yan Yongnian was stunned after hearing this, and almost dropped his left foot and his right foot: Last month, when the comrades from the Northern Vehicle Research Institute came to hand over the project to us, they said they couldnt contact you, so they gave me a souvenir and asked me to hand it over to you. Just asking casually to avoid being left in the cold. You want to poach me too? Wellits all a false name Actually, Chang Haonan did not have this idea. ?But then the conversation changed: Speak of it, Professor Yan. The two of them had left the workshop at this time. Yan Yongnian took off the safety helmet on his head and said: ??And judging from the other partys tone, he probably wouldnt really choose to leave Qinghua University. If everything goes well, our die forging press will be officially delivered early next year. What are your plans after that? But since others have said so, it would be a bit awkward for him to clarify that he didn''t mean it. If Professor Yan is willing, I would naturally welcome him. It just so happens that the laboratory still lacks an experienced veteran..." Sure enough, just as Chang Haonan had guessed, Yan Yongnian waved his hand: If I were 20 years younger, I might actually be able to agree. But now...I was already ready to retire. After I finish working on the die forging press, I will train a group of close disciples and its time to give up my position to the young people..." Yan Yongnian is not young, but he did not hold a teaching position in the first half of his career. Therefore, the number of students is much smaller than that of professors of the same age and level. ?However, the training cycle for a PhD takes at least 4-5 years. If you plan to retire, you will basically plan in advance like Du Yishan - After Chang Haonan, the latter has not accepted any new doctoral students. Firstly, I am afraid that the gap between the senior brothers will be too big, and secondly, I will not be able to teach the entire class. "Professor Yan''s closed disciples haven''t been admitted yet?" Chang Haonan asked as he followed him up the steps of the dormitory building. Yan Yongnian was shocked when he heard Chang Haonan''s question. He turned his head and looked at Chang Haonan with an expression of "Is it appropriate for you to ask this question?" The latter thought for a long time, touched his chin awkwardly, and at the same time shifted his gaze with a guilty conscience... It seems that there is indeed a person who packed up and took away the closed disciples who had been trained half an hour ago... Fortunately, the two of them also walked to Yan Yongnian''s dormitory at this time. The latter opened the door, took out something covered by a glass cover from a tin cabinet in the living room and handed it to Chang Haonan. is a tank model. Third-generation main battle tank prototype Chang Haonan is naturally familiar with this. In principle, both 99 and 96 tank prototypes can be called this. However, it is still easy to distinguish the specific model from the iconic trapezoidal main armor and the grille at the rear of the turret, as well as the design where the driver is located directly under the gun barrel. Even though he has spent his whole life studying aircraft, how could a man not like strong armor and sharp cannons? Its hard not to have heard of the 9910 prototype that participated in the 50th National Day military parade. ?For a long time at the beginning of the new century, it was also called the "Type 98" main battle tank. There is also a nameplate directly below the model. First Machinery Manufacturing Plant Obviously, this is not the kind of cultural and creative product jointly launched by a research institution and a model manufacturer, but a machine factory responsible for producing the 99 main battle tank. The workmanship is not very good, mainly because the carrying capacity is relatively large. ?Furthermore, precisely because the workmanship is not excellent, it is not confidential. "The forest engineer told me at the time that thanks to the period of experience in our project team, they were able to come up with a brand new chassis that met the design specifications of the army in time. Otherwise... I''m afraid... I''m afraid they would have to use an engineering prototype vehicle with an intermediate technical status to make up for the military parade. Already Yan Yongnian said and pointed to the model in Chang Haonan''s hand. After being reminded like this, the latter discovered that the chassis of this model was indeed thick and uncoordinated compared to the turret. When I first looked at it, I thought it was simply because the workmanship was too rough, so I didnt pay attention. But upon closer inspection, I found that this chassis even has the flavor of the 99A chassis after major changes. ?It seems that at least at the overall design level, it can be regarded as one step in place. But judging from the shape of the power compartment and turret, it still uses a 1200-horsepower engine and an early model 125mm smoothbore gun. There is a high probability that it will not be a mass-produced model, and it can still only be called the 9910 engineering prototype. ??Its just that compared to the original timeline, the distance to the final technical state is much closer. Yan Yongnian watched Chang Haonan turn it over to study the model in his hand. He could understand the man''s little hobby, so he didn''t speak again until the latter raised his head again: Speaking of Mr. Chang, with your current influence on the Science and Technology Commission, you should be invited to attend this years military parade, right? Chang Haonan is quite sure about this, otherwise he would not directly invite his parents over during the Chinese New Year. ?But its not easy to speak too fully in front of outsiders: I havent received accurate news yet, but I heard that the Science and Technology Commission will invite scientific researchers and worker representatives from the military industry... That...Mr. Chang. Hearing this answer, Yan Yongnian immediately rubbed his hands: "Although our heavy-duty die forging press cannot be directly regarded as military equipment, it can produce a lot of military equipment...and whether it was first installed in the Northern Research Institute or the current Equipment Industry Department, it is also a project under the Committee of Science and Technology... " ?His expression showed a rare hint of flattery: So you see...can I also be considered a scientific researcher in the military industry..." (End of this chapter) Chapter 718 Too much new equipment is also a worry Chapter 718 Too many new equipment is also a worry ? Yan Yongnians question is basically a straight shot "This military parade is very good. Can you let me go and see it too?" In fact, according to common sense. Its difficult. Because the term "military industry" of the Science and Technology Commission basically refers to military equipment research and development personnel. Chang Haonan was included because he was responsible for the research and development of the Taihang project. Otherwise, at this moment, thirteen of the twelve military-industrial groups would be engaged in real estate as a side business, and the scope would be a bit too large. But its not completely impossible. As Yan Yongnian said just now, the first production task of this die forging press is the J-11B body. Yan Yongnian still has this kind of self-awareness. And if he waits another ten years, he will definitely have retired, and it is even less likely that he will be specially invited here. Coincidentally, we are also working on a die forging press. So we need a place to put all the reference personnel and equipment together for joint training. ? A convoy of more than a dozen HY4731 semi-trailers, with double flashes, slowly drove into the temporary camp that had just been set up. At the beginning of the founding of the People''s Republic of China, since military parades were held every National Day, but each time was not large in scale, the military parade troops were basically drawn from the vicinity of the capital, and training was conducted in their respective camps. At the same time, it also gives those foreign troops a place to station themselves. So this year is basically his only chance. Professor Yan, please dont worry. The invitation list for the military parade is issued in batches, and the last batch should not be confirmed until the end of August or the beginning of September, so as long as we dont cause problems when we trial-produce the National Day gifts, the chances should be great. At the end of the queue, there were two buses following. Tongzhou, Zhangjiawan. at the same time. But later, as the frequency of military parades decreased, the scale increased accordingly, and the units to be reviewed began to be drawn from across the country. ??Its just that we didnt produce any particularly iconic results, so we didnt even think about being invited to the ceremony. ?Yan Yongnians eyes lit up. At the time of the 35th anniversary military parade, he was still working in the old Ministry of Machinery Industry. ??So there were two military parade villages located around the capital. Parade Village. Chang Haonan said as he wrapped the model and put it into a bag: The one located in Zhangjiawan is where the vehicle formation is stationed for training. Another one for the foot formation is located in Shahe. ??The nature of the air force formation is quite special, so it still adopts the mode of dispersed training during normal times, and then moves to the vicinity of the capital during the final joint training stage. ?Under the command of the parade village manager, the escorting soldiers jumped down from the truck cab and quickly untied the cables holding the tank. At the same time, the crew members who were drawn from an armored division at the foot of Yanshan also got off the bus, found the tank with the corresponding number in groups of three, and climbed into their respective positions with unskilled movements. 18 vehicles in total. ?About one-third of them were just pulled from the test track, so the surface of the car body is covered with a thick layer of sediment. Immediately afterwards, a slightly smaller group of people dressed in casual clothes got off another bus. From their movements, it is easy to see that they have not received any military training and should not be reference personnel. The same groups came to the tank, but there were only two people in each group. ?One of them came to the rear of the trailer and began to give instructions to unload the truck. The other one is lying on the car body, watching the driver''s movements closely, and giving some guidance from time to time. The vehicle crew members during the test process are all employees of research institutes or manufacturers, but the military parade will definitely still require the participation of the People''s Liberation Army. Therefore, the 54 selected training cadres have only operated this latest model of third-generation main battle tank on a simulator before. ?This is the first time I have come into contact with a real car. In fact, they even had a fourth member of the vehicle crew in the original unit. However, with the continuous development of military technology, the two third-generation tanks that will participate in the parade no longer have a second gunner (that is, a loader). . Soon, the first tank spewed out a plume of black smoke on the flatbed truck, and the low-frequency roar of the diesel engine almost resounded throughout the parade village. For some experienced veteran tank soldiers, they can tell that the diesel engine used in this tank is quite powerful just from the sound at the moment of startup. The tank soldiers sitting in the car will have a more obvious perception. ??The first driver to engage reverse gear and release the brake was immediately startled by the huge torque, and almost subconsciously stepped on the brake again. The newly designed suspension and chassis allowed the nearly 50-ton tank to stop stably on the trailer board in an instant, with almost no sign of nodding forward or backward. But the trailer below suffered. The rated load of the Type 82 tank trailer itself is 50 tons. Now as soon as the tank moves on it, the trailer suspension immediately makes an overwhelming and harsh sound. In the end, fortunately, it was unloaded without any danger. Such a big movement here has already attracted the attention of other troops being reviewed who are also stationed in the parade village. Even for most insiders, this is the first time this type of tank has appeared in front of them. The impact brought by the King of Land Warfare is difficult to match with other equipment, no matter how advanced it is. Not to mention anything else, the tank gun, which visually measured about 6 meters in length, and the tank''s crisp starting posture are enough to show the extraordinary performance of this model. ?Especially for the crew of another tank formation originally stationed somewhere in Yanjiao Behind them, although the chassis also has six pairs of road wheels, the turret is still an 88B with a pot head shape, which instantly becomes unpleasant... On the simulated rostrum further away, several conductors were watching the unloading process through binoculars in their hands. This should be the last batch in Zhangjiahe, right? General Li Liangxin, the commander-in-chief of the parade, put the telescope aside and asked Yang Hong, the chief instructor of the vehicle formation next to him and the general person in charge of the Zhangjiawan Parade Village. It is the last batch of reference equipment. The latter quickly put down his telescope and replied: There are two backup vehicles of 9910 engineering vehicles at the back. Because they are still on the production line, they will not be delivered until next month. "well" ?Li Liangxin sighed, the joyful expression on his face just now has been replaced by worry: The equipment for this military parade... is really new. He shook his head and continued with complicated emotions: "When I received the document the year before last and was transferred to the Beijing Military Region, I made a list of the planned reference equipment in advance. I found that whether on the ground or in the air, the so-called ''new'' equipment was the batch that was put into service in the early 1990s. It has been in the hands of the army for several years, and it was at the best stage of running-in and stability. At that time, I was relieved and thought that the pressure of military parade command should not be too great. " Who would have thought that in less than two years, the contents of that table, except that the rifles of the foot formation were completely unchanged, have basically been changed..." "The aircraft are new, the tanks are new, and the guided missiles are also new... Not only are they new, but many of them are prototype equipment that is in the finalization process. If something goes wrong on the day of the military parade, I''m afraid. I want to become a criminal in history..." ?Li Liangxin felt for the first time that equipment was updated too quickly, which sometimes was not necessarily a good thing. Commander-in-Chief, actually our air equipment is not new anymore Zheng Liangqun, the only one next to him wearing an Air Force uniform, replied half-jokingly: "Previously, comrades from the aviation industry told me that it is expected that the latest improved version of Project 11 using a new airframe, avionics and engine will begin test flights in the middle of this year, and asked me if I could also consider joining. In Project 9910, there is also a 10-ton helicopter called Zhi-12..." "Don''t" Halfway through his words, he was interrupted by Li Liangxin, who had already put on a mask of pain: Now these prototype equipment are causing me insomnia and hair loss every night. If there are two new ones, they will still be the most trouble-free aerial equipment. The Mediterranean Sea above my head will probably turn into the Pacific Ocean..." (End of this chapter) Chapter 719 On parade! Chapter 719: Military Parade! Obviously, Li Liangxins current state of mind is one of pain and happiness. But the point is happiness. ?Hence, his words also triggered a burst of empathetic laughter on the podium. ?Hair loss is obviously a common problem faced by most middle-aged men. ??No matter whether you are rich or poor, you will be treated equally. We need to find some heavy-duty tow trucks. ? Yang Hong, the chief instructor of the vehicle formation, raised his telescope again and looked at the 18 tanks that had formed a line in the distance and were driving into the camp under the guidance of technical personnel: "This model weighs almost 50 tons. The largest Type 84 tank repair vehicle we have now can only tow 45 tons. If it breaks down and cannot even tow it, it will be a big trouble." ?Equipment reliability is a matter of complete materialism. It is not like members of a walking team who can overcome some minor problems. If they fail, they will fail. Furthermore, no matter how good the maintenance is, it is impossible to completely eliminate the possibility of failure. Therefore, during each detachment, there will be a series of engineering rescue vehicles and backup equipment on standby next to the moving convoy. After all, when it comes to the speed at which new equipment is put into service, the Air Force is currently unparalleled. Zheng Liangqun said this, and no one can refute it. So...sometimes its frustrating to change clothes too quickly... ?This is why sometimes, the combat effectiveness of troops that have just received new equipment is not as good as when they use old equipment. ??Although Li Liangxin was born in the army, as a commander at the military region level, he has actually jumped out of the level of a single military service and did not directly prevent harmless quarrels among his subordinates. The two models of third-generation tanks have directly increased the size of the Chinese Army''s main battle equipment by nearly a quarter. "As for the ground support issue, starting from the middle of last year, in the name of the 9910 project, in accordance with the replacement plan for the next 3-5 years, I transferred some ground support personnel from several of the top aviation divisions in the Air Force to Sheng Sheng. We will go to the Beijing 112 Factory to study and adapt to the new equipment in advance. Of course, the main purpose is not only for the military parade, but also to quickly form combat effectiveness in the future. " Zheng Liangquns tone next to him inadvertently brought a hint of Versailles. Another officer thought for a while, then touched his chin and replied: A few years ago, when business was not banned, there were many engineering brigades working outside to build bridges and pave roads. Although they have not been allowed to do so in the past two years, the equipment purchased before should still be there and can use some of the remaining heat. Zheng Liangqun dared to open a battle in the middle of a group of army troops. He naturally understood that forging iron requires one''s own strength, and immediately replied: The candidates for the pilots of the air formation have basically been determined, and targeted formation flight training is being carried out. Only the list of accompanying student pilots for the training aircraft echelon has not yet been reported, but this will not affect flight preparations. Although except for a tank breaking down at the founding ceremony of the People''s Republic of China, there were no similar problems later. ??More importantly, the Air Force has basically ensured that there will be no serious interruption in combat effectiveness during the replacement process The bat hunting operation and embankment building operation the year before last are the best proof. The number of troops equipped with Su-27 or domestic J-11A has increased to 3 regiments, and although it is a second-generation and a half fighter, the number of J-8Cs that can also be considered as new-quality combat effectiveness is roughly the same. Therefore, after listening for a while, he just changed the subject calmly: Commander Zheng, what about the situation of the air formations being reviewed, especially the third-generation fighter jets being reviewed? I remember that in the past two years, they were not able to move freely across the country? But it is always better to be prepared. Compared with the more than 50 fighter regiments of the entire Air Force, this number is indeed not too many, but at least it can ensure that the key airspace in the east and southeast has relatively modern fighters to protect the airspace, and there will no longer be forced use of fighter jets. The J-6 versus F14 is such a heroic but helpless scene. Able to tow a 50-ton heavy-duty emergency vehicle... I estimate that only the engineering corps will have some engineering equipment that meets the requirements. Corresponding to the increase in equipment combat effectiveness, the logistics support requirements have doubled. ?As for soldiers, if there is only harmony and no sparks when we get together, it may not be a good thing. One of the key points is the base over Yangcun, so both ground support equipment and personnel can completely independently ensure the normal operation of the Su-27 and J-11 aircraft being reviewed. "However, the J-10, which is referenced together with the three domestically produced J-11s, is still in a prototype state, and is even currently performing test flight missions in Yanliang. Therefore, the guarantee of these two aircraft requires comrades from the 132 Factory sent from Rongcheng. Some technical staff are here." He had barely spoken a few words when there was already someone next to him who was quick to respond and started taking notes. The military parade is indeed very important, but in the final analysis it is only a temporary mission. ?Preparation for war is the eternal theme of the army in peacetime. Obviously, Zheng Liangqun was able to go from deputy division commander to military region air force commander in less than three years. In addition to being lucky, he did have some unique things of his own. ??Just here, the parade commanders were chatting about the preparations of the air formation. Changchun Flight Academy, a thousand kilometers away. ?Three newly installed J-9 training aircraft entered the apron along the taxiway. As the hatch opened, the three student pilots and three flight instructors climbed out of the cabin. After getting off the plane, each student handed a piece of paper in his hand to the instructor behind him, and then either trotted all the way or walked back to the queue a little further away. The three instructors gathered the papers in their hands and handed them to a colonel standing opposite the queue in the academy. It was Zhang Jiujiang, an old acquaintance of Chang Haonan. Subsequently, more than a dozen instructors began to study the test papers submitted by the students on site. The students in the queue are actually not surprised by this. This "aviation experience course", which was launched somewhat suddenly, has lasted for nearly two semesters, and the aircraft model used for riding experience has also changed from the initial JJ 6, to the later JJ 6, and then to the current JJ ??9 . Each type of aircraft does not require students to fly. All they have to do is to perform specific actions according to the tower''s instructions when the instructor''s aircraft maneuvers. Usually answering a question written on a piece of paper, or giving accurate directions in a high-speed maneuvering aircraft in the air according to a description on a piece of paper. At the beginning, most people could still get a high score in Beginner''s Education 6. But on the JJ-9, which is faster and has a greater overload level, many students have already felt uncomfortable after landing or even during the flight. Especially for the dozen or so female students in todays queue. According to convention, they will be assigned to the transport flight profession by default, so experiencing JJJ6 and JJ9 is completely unplanned training content. For some reason, the instructors spent an extra long time studying the test papers on this day. There were several students who reacted greatly to heavy G-force flight, and their legs were already shaking a little. ?It wasnt until nearly half an hour later that the instructors who were gathered together finally dispersed again. Li Lingchao and Chang Jiayao will stay for a while, while the others will be taken back to the dormitory area and then dispersed. Free activities in the afternoon! The instructor leaves a few students alone after class, which basically means additional training. Hence, the other students looked at the two with some pity in their eyes. Including the two people who were left behind, they were also a little panicked. Instructor, I think my performance during this period...should be okay..." After most people left, Chang Jiayao cautiously tried Zhang Jiujiang. After learning that he and Chang Haonan were acquaintances, the former was no longer as restrained in private as he had been in the past. But today, Zhang Jiujiang''s expression was particularly serious. Stand at attention! Chang Jiayao immediately put away her playful smile and stood in a standard military posture with Li Lingchao next to her. The college has decided to report two comrades, Li Lingchao and Chang Jiayao, as candidates to accompany the No. 5 and No. 6 train echelons of the training aircraft for the 50th anniversary of the National Day parade respectively! (End of this chapter) Chapter 720 Mr. Chang’s influence Chapter 720 Mr. Changs influence ??The moment Zhang Jiujiang spoke with a serious face, Chang Jiayao was so nervous that it felt as if her heart was about to stop. ?This feeling of waiting for results was something she hadn''t experienced much since she entered college. ?So my mind is filled with two words Its over! ??However, just when Chang Jiayao gritted her teeth, stamped her feet and closed her eyes, and even completed her mental preparation, what she heard was not the expected news that she would need to practice more. The huge contrast made it impossible for her to realize what Zhang Jiujiang meant. It feels like I thought I had failed a test but when I checked my scores I found out that I had not. "Eh?" Chang Jiayao looked at Li Lingchao, who was left behind with her, in confusion. National... National Day 50th Anniversary Military Parade? ?So the scene became that of him dancing in the air alone... ?With their understanding ability, they naturally quickly figured out what this was going to do. ??The latter is the squad leader of this female pilot class, but her expression at this time is also the same blank. ?Zhang Jiujiang took two steps forward and waved his palms in front of Chang Jiayao and Li Lingchao: Are you overwhelmed by the surprise? It was only then that the two of them reacted. Yes, at least at first. After all, regarding the matter of student selection, before the actual results came out today, the spread was basically limited to a few college leaders. Before that, it could be said that there was no news at all among the students. After all, as sophomore students, they have not even officially started flight training. But the reaction of the two students made Zhang Jiujiang on the other side unable to deal with it ?Zhang Jiujiang, who finally stopped playing one-man shows, nodded and replied: "In order to show the talent reserve and spirit of our People''s Air Force facing the new millennium, this military parade specially arranged a wedge of training aircraft from our academy at the end of all flight formations. Since it is a training aircraft, it is not so difficult for only our instructors to go up. Thats why the academy leaders decided to assign a pilot student to the front seat of each aircraft, choosing from the second-year and third-year students. ?Zhang Jiujiang led the two of them outside the airport area and replied: ??As a result, the two of them acted completely out of common sense and looked at each other with no reaction at all. It does take some time to accept. So the purpose of this aviation experience course that started last year is to... select students who can get on the plane and participate in the military parade together? ?His sullen look before was just an act. After announcing the good news, he followed the usual routine and started applauding the two girls to express his congratulations. ?But the rationality makes people a little unbelievable. Hey, you two? Thats right. Accompanying student pilots? Hearing this, Chang Jiayao suddenly understood: Three-year students have been flying for a while, so their adaptability in the sky can be judged based on their flight course scores. But your second-year students are not good enough, so this course was temporarily added. "But later we discovered that allowing students in the first half of the second grade, or even the second half of the first grade to get on a plane in advance is also very beneficial to teaching. You may not be able to feel this yourself, but we feel that when it comes to flight theory teaching Its quite obvious that the hours of your aviation theory course this year are 10% less than the previous year, but the average score is nearly 5 points higher. Li Lingchao nodded in confusion. As a student, she naturally could not have such an overall perspective, and the issue she was more concerned about was not here: So, Instructor Zhang, do we need to do anything extra? As a newbie who has only experienced flying on the J-9 for a few hours, now I suddenly learned that I have to participate in such an important task as the National Day military parade. After the initial confusion and the surprise that followed, I felt more directly. It must be pressure. Zhang Jiujiang could naturally see this and immediately said with relief: Dont be too stressed. For tasks like flying a military parade formation, the dozens of hours of flight time that third grade students have more than you do make no difference at all, so our instructors will all be responsible for the flight. You have only two tasks. One is to assist the instructor in determining the formation situation, especially the readings of the formation rangefinder. Although the view from the back seat of the J-9 is quite good, it is still incomparable with that from the front seat; The cabin is responsible for taking photos, which is also the task assigned to us by the publicity department. ? ? There will be a dedicated helicopter responsible for filming and broadcasting in the ground formation, but when flying in an aerial formation, it is impossible to allow a helicopter that does not belong to any formation to get too close, whether for effect or safety. In this way, the broadcast perspective can only be from the ground. But in addition to the broadcast, Bayi Film Production Factory will produce a special recording version in the later stage, which can use some shots shot from the air. As a result, almost all formations containing two-seater aircraft have received this task. Chang Jiayao, who was walking next to her, thought about the fact that during the Chinese New Year, Chang Haonan did not directly prepare a quota for her to attend the National Day ceremony... In normal times, this might be a coincidence, but... ?Chang Jiayao felt that her mind was a little messed up. ??If Chang Haonan had known about this a long time ago... No. As a seemingly influential aircraft designer, it is normal for my brother to know in advance that there will be selections for the National Day military parade. But the other party seems to be sure that he will be chosen... certainly. This could be interpreted as confidence in the sister''s abilities. But if we look at it from the other side... ?The reason why Chang Jiayao applied for flight school was because she had been living in the shadow of her elder brother in high school, and she actually had a bit of a rebellious mentality. ??Although I have matured a lot in the past two years since I was in college, I will no longer deliberately go against my family for this awkward idea. ??But if such an opportunity was decided unofficially because of Chang Haonan... Then she would rather... ?Chang Jiayao tried to face her heart. Okay, Ill still take it. It is impossible to give up. After all, this opportunity is too rare. It is very likely that it will only happen once in a lifetime. But this answer made her feel even more painful. Jia Yao? Just when Chang Jiayao fell into extreme entanglement and self-doubt, Li Lingchao next to her gently patted her shoulder: What are you thinking about? Your face is turning red and white in turns? The former, who was already a little guilty, was immediately shocked when he was slapped like this: "ah!" ?Her overreaction shocked Li Lingchao: "What are you doing? If you don''t know, you think I want to molest you..." At this time, Chang Jiayao gradually came to her senses and realized that instructor Zhang was no longer around. Where is Instructor Zhang? Of course Im going back to the office Li Lingchao was a little confused: "What''s wrong with you today? You''re so distracted... Our dormitory is in front of us, and there''s no way he can follow us." Chang Jiayao quickly shook her head: Its okay, its just that I was too surprised just now and I havent recovered yet. ?This reason is very sufficient, and Li Lingchao did not continue to delve deeper: "I''m going to call my family and tell them about this. Do you want to come with me?" Chang Jiayao was stunned: Is this allowed to be said? ?Li Lingchao nodded: "I just asked specifically. After the quota is decided, there is nothing worth keeping secret. You can inform your family, but it is limited to participating in the military parade itself, and more specific arrangements cannot be disclosed." "I...I''m not in a hurry. I don''t think there''s anyone at home. We''ll talk about it later in the evening." Chang Jiayao stopped, hesitated for a moment and then turned back: I have something to do in the teaching area, so I wont accompany you for now. Ill see you in the cafeteria later. ?Chang Jiayao did not lie. She did go to the teaching area. Find Zhang Jiujiangs office. Instructor Zhang Chang Jiayaos tone was a little tentative: "I...can I see the specific results of each test in my aviation experience class..." ?Zhang Jiujiang was stunned. ?This request is not uncommon, but it usually comes from students who have relatively poor grades or even failed grades and want to get a few more points. ?Those with scores above 90 points like Chang Jiayao rarely apply for this kind of application. ?However, Zhang Jiujiang is a veteran after all, and he quickly figured out the joints. ??The relationship between brother and sister Chang Haonan is something that everyone understands but has not yet said. To put it simply, Zhang Jiujiang knows that Chang Jiayao is Chang Haonans sister, and Chang Jiayao also knows that Zhang Jiujiang knows that she is Chang Haonans sister Ahem But neither of them made it clear. ?But now, it seems its time to speak out. "Are you worried that the hospital has chosen you as the candidate because of Mr. Chang''s relationship?" ?Zhang Jiujiang stood up, took out a file bag with Chang Jiayao''s name on it from the nearby filing cabinet, put it on the table, and then pushed it in front of the other party. "ah" Chang Jiayao was a little embarrassed for a moment when her intentions were directly revealed, but after a moment of hesitation, she still opened the document bag. ??While Chang Jiayao was looking through the results, Zhang Jiujiang sat back on the office chair and unscrewed the lid of the water cup: "To be honest, there must be a connection between this matter and Mr. Chang. After all, if there was no Mr. Chang, we would have directly excluded your female student team from the selection." Or... to put it more bluntly, without Mr. Chang, our college may not even have the chance to participate in the military parade..." While speaking, Chang Jiayao quickly looked at her score sheet and made sure that there was no water mark in the score, so she finally breathed a sigh of relief. At this moment, when she heard what Zhang Jiujiang said, she was so shocked that she raised her head. "ah?" ?Based on what she saw and heard during the winter vacation, she could indeed guess that Chang Haonan should have some influence in the aviation industry, otherwise she would not consider it at the informal level. But when the other party said this, she felt that she... seemed to have underestimated her brother. (End of this chapter) Chapter 721 South Asia Chapter 721 South Asia Storm ?Shocked, Chang Jiayao almost blurted out and asked about the relationship between her brother and the flight academy''s military parade. But in the end, I endured it. ??If it could be said, it would have been done long ago when the two of them met during the Chinese New Year. ?Zhang Jiujiang took a sip of water, then closed the lid of the thermos cup and looked at the transcript in Chang Jiayao''s hand: "You don''t have to belittle yourself. This course is open to all students, and the grading is based on a unified standard. Although the average score of your class is different from that of other male student classes, the scores of you and Li Lingchao are still within the same range." Those who are above the average for the whole grade meet our basic criteria for shortlisting and are not let go because of Mr. Chang. Even if you dont meet the standard, as long as its not too bad, we should still let you be shortlisted... Of course, the last sentence was said in my heart. Hearing what the other party said, Chang Jiayaos originally mixed feelings finally calmed down: Basic criteria for shortlisting She put the transcript back into the document bag and handed it back to Zhang Jiujiang with both hands: Isnt this ranked directly from high to low according to the results? "Eh?" He said to himself as he dialed the number. Of course not At the military academy, personal cell phones are definitely not allowed. Therefore, at this moment, I happened to see Li Lingchao, who had just made a phone call and walked out with a smile on his face. Chang Jiayao''s trip to Zhang Jiujiang''s office sounds like a lot of inner drama, but in fact, when she went there, she was emo while walking, and when she returned, she wanted to rush back. In fact, it didn''t take long in total. ??Chang Jiayao naturally couldn''t confess her thoughts to the other party, so she could only find any excuse to get through. Thats right Thank you, Instructor Zhang. You should be busy first. Im going back to the dormitory... ?After figuring out the whole story, Chang Jiayao gradually returned to her previous personality: On the other side, Chang Jiayao, who left the college administration building, also jogged back to the living area. Zhang Jiujiang was putting the document bag back into the filing cabinet at this time. He did not reply, but waved his hand towards her with a smile, then walked to the window of the office and watched Chang Jiayao''s figure appear in the office building. After that, he sat back on the office chair and picked up the phone. The latter looked at her like she was looking at a little fool: On the premise that the results are up to standard, there are also other aspects of performance that can be used as a reference. If nothing else, at least a political review is required..." Jia Yao, didnt you go to the teaching area? This matter still needs to be reported... ?Chang Jiayao finally did not get through her brothers phone call. WellI had some things to do, but now Ive finished them. ?Of course Li Lingchao didnt mean to get to the bottom of things: Then Ill wait for you outside, and well go to the canteen together later. Because Zhang Jiujiang could find out about Chang Haonan''s presence in Jiangcheng through special channels, Chang Jiayao could not. ?You can only make outside calls from a few designated places. The latter naturally saw Chang Jiayao who was going up the steps: After the meeting at Sanzuomen, the department leader who was newly transferred to be responsible for Chang Haonans safety advised him not only not to use but also not to carry his mobile phone during work for safety and confidentiality reasons. Chang Haonan has always been very obedient in this regard. "So fast?" ??When Li Lingchao saw Chang Jiayao coming out, his eyes widened in shock. Although we cannot go into details about such a big thing, there is a lot to talk about if we expand it a little bit. ??If she wasn''t worried about the phone bill, I''m afraid she would still be chatting inside. Everyone at home is at work, so I havent been able to get through. ?Although he failed to tell Chang Haonan the news immediately, Chang Jiayao was obviously in a good mood: "let''s go" You feel a little weird today...are you okay? Its okay, its okay, I just suddenly remembered something happy... Is there anything more joyful than participating in the military parade? Li Lingchao, who was confused, quickly kept up with Chang Jiayao''s pace... In the following period, Chang Haonan was busy preparing for the trial production of heavy-duty die forging presses. The technicians sent by Factory 112 also arrived in Jiangcheng a few days later.?????It''s just... The scale was a bit larger than he expected. The team was even led by He Ming, the deputy chief engineer of Shengfei Group and the new assembly head of Project 11, an old acquaintance of Chang Haonan. Mr. He, you brought a lot of people this time... After some pleasantries, Chang Haonan looked at the crowds of people filing out of the two buses in front of him, and was a little worried that there might not be enough dormitories in the new factory... He Mingze replied in a half-joking tone: Its a rare opportunity to learn from Mr. Chang. But after saying this, he turned serious: The main reason is that these rear bulkheads are too critical for the new airframe, and the design is quite extreme, leaving very little room for error in the production process. So I asked each team, including the assembly workshop, We all brought people here just to make sure nothing goes wrong. ?Even Chang Haonan was somewhat surprised by this level of emphasis: Wont this affect the current production of J-11AM and ASM models? "Won''t." He Ming immediately shook his head: "Since the beginning of the year, superiors have transferred about half of the manpower from the J-8C final assembly to ours. Now the personnel on the production line are allocated according to a 1:1.2 overflow. One is to prevent accidents, and the other is to provide B Prepare for capacity increase after model mass production. Is the Air Force getting tired of the old so quickly? Chang Haonan was shocked after hearing this: The J-8C has only been in mass production for two years Whats so new He Ming is not too young anymore. He didnt realize what Chang Haonan meant for a while, but he laughed out loud after thinking about it: "This description is quite appropriate..." "But this time it''s not because of the Air Force. They placed more orders this year than last year. The main reason is that the engine supply from Liming Factory is less than half that of last year. Even if we make a bunch of shells, it won''t be enough." We can only wait for the engine to arrive, but instead prepare for the J-11B. Huh? Is there something wrong with Liming Factory? You must know that Chang Haonan is also the chief designer of Turbofan 10. Although he has basically no need to directly interface with Liming Factory since the twin-engine installation test, I have never heard of anything encountered there that would reduce production capacity. Half a big problem. Thats not the case. ?He Ming looked at Chang Haonan with a horrified expression and hurriedly rushed to the latter''s side and explained in a low voice: "I heard that at the end of last year, the Pakistan Air Force suddenly asked Factory 132 to speed up the delivery of the J-7F, and the request was made directly through upper-level channels, so the superiors directly gave us a death order, requiring priority to ensure the J-7F. production speed. Is there such a thing? Chang Haonan felt nervous. The environment of this meeting in 1999 is rather special. ? India and Pakistan are theoretically under sanctions due to their nuclear tests. The reason why it is said to be theoretical is because behind both companies there is actually a big brother who doesn''t care about sanctions. But no matter how much you dont care, generally speaking, you will be more restrained when it comes to military supplies. So, at such a juncture, the fighter jets were specially requested to speed up the delivery progress, and China actually agreed directly. There is basically only one possibility. Prepare for war. Considering that Pakistans domestic economy almost collapsed after the 1998 financial crisis, and last year the army went to Luogu with swords in hand, it is a normal idea to create a big wave of transfer conflicts... ?Chang Haonan raised his head and thought briefly. In his impression, some conflicts did break out between India and Pakistan at the turn of the century, but the scale was definitely not large, at least it would not be a nationwide war like the previous three wars. Otherwise, there wont be a particularly clear impression. ?Of course, after completely reversing the outcome of the Allied Operation, the development of this world line today can no longer completely refer to the situation in the previous life... Fortunately, in 1999, the Indian Air Force was not equipped with heavy multi-purpose fighters like the Su-30MKI. ??If he only fights a dozen Mirage 2000H and MiG-21, then as one of the actual designers of the J-7F, he is still confident in his own work. Even if it was just a product I practiced in my junior year. Mr. Chang...Mr. Chang? He Ming looked at Chang Haonan who suddenly became dazed. He didn''t say anything to disturb him at first, but the more than 100 people he brought over later had already lined up, and it was not easy to stand under the bright sun. "Oh it''s all right." Chang Haonan, who was relieved, waved his hand: Lets go, Ill ask the comrades in charge of the factory here to arrange accommodation for you. Its just that there are a lot of people, and some of them may sleep in bunk beds (End of this chapter) Chapter 722 dive bombing Chapter 722 Dive Bombing ?Chang Haonans prediction soon became a reality. In fact, shortly after the Allied Operations began, Pakistan sent armed personnel disguised as civilians in batches into the border areas near the Line of Control to build defensive positions and outposts. According to their plan, this was supposed to be a surprise operation to achieve the established facts as quickly as possible while the attention of all external powers was focused on the Balkans. Just as the northern powers did in 1962. However, the sudden start of the Allied operation was too sudden. ?Hence, the Pakistani army was not well prepared on March 25 and had no choice but to bite the bullet and start the mission. The end of the Allied operation was even more sudden. ?No one could have imagined that the Balkan crisis would end in such a outrageous way. In other words. Pakistan''s entire plan completely collapsed. ?This caused the Pakistani ground forces, which originally had an altitude advantage of about a kilometer, to suffer losses in the artillery battle. Even the advantageous combat loss ratio achieved in the previous days was gradually reduced. ??The Pakistani observation post, which is at a relatively commanding height, has actually observed the location of the opponent''s fire launch, but it has remained silent because it has no countermeasures. Soon Aslam saw an iconic C-shaped stone circle on the hillside on the right in front, which is one of the most important landmarks in route planning. At first, they had been planning this plan for more than half a year. The situation of the Pakistani armed forces took a turn for the worse. ?But soon, the Indian army, which recovered, gradually began to use heavy equipment, including tanks and artillery, to fight back. ?Aslam will inform his wingman flying about 2.5 kilometers ahead about the terrain ahead every few seconds. They originally thought that the biggest problem in the plan would be to deal with the interference of foreign powers after completing the land encirclement, so they chose such a time point. Siachen Glacier, western foothills, Saltolo Mountain. Therefore, the attack route can only be along the valley bottom between the glaciers, around the ridge, and dropping bombs from the opposite direction. In this mountainous area with the most complex environment on earth, the signal stability and accuracy of the satellite positioning system are unsatisfactory, so elite pilots like the captain are still required to perform some basic skills. ??The wingman''s clear answer came over the radio. Hence, the escalation of the conflict is inevitable. Even if we have to withdraw in the end, we have to do something before withdrawing. Compared with a normal two-plane formation, the distance between the two planes is quite far, and even when making some large-angle turns, the leading plane will briefly leave the sight of the following plane. Today, their counterattack is coming soon. And another unusual thing is. ?Two Qiang-5IIIs from the 16th "Panther" Squadron were traveling northward at high speed in the ravine between the two ridges, with a total of 6 mk82 aerial bombs hung on the wings and under the fuselage of each aircraft. But in reality, the plan stalled almost at the first step. After being discovered, it turned into a confrontation. Panther 2 has been received and is climbing. The bomb safety has been turned on. Because Pakistan greatly overestimated the combat effectiveness of its army. So we definitely cant just get out of here in despair. Panther 2, now slow down, climb to 450 meters, turn 180 to the left at the next mountain pass, and then enter the attack course. Early morning. Normally, at this point, we should consider how to end it with dignity. The 450 meters here are obviously the height above the ground displayed by the radio altimeter, not the absolute altitude. To solve this problem once and for all, the Air Staff formulated a plan to use attack aircraft to attack enemy artillery positions. However, to some extent, the above two things are not important. He gave orders over the radio to the wingman who was disappearing and appearing in front of him. Secondly, the new leader who just raised his sword and went to Luo also needs some victories, at least publicity victories to increase his prestige. Since the opponent''s position is deployed on a reverse slope, the success rate of bombing directly over the ridge to the east is basically negligible. Moreover, behind the Siachen Glacier not far away is Huaxia. If the bomb is thrown over the boundary, there will be trouble. Big. This is a high-risk plan, not only because of the possible anti-aircraft weapons of the opponent, but more importantly, using two attack aircraft that lack terrain avoidance and tracking capabilities to fly long distances and low altitudes will itself test the pilot''s ability. but. At this time, the lead pilot, Captain Waqas Aslam, was concentrating on scanning the mountains on both sides, while looking down from time to time to check the flight route map placed in the transparent pocket on his thigh. The so-called surprise attack did not achieve suddenness at all. In the past period of time, the heavy artillery fire deployed by the Indian army has carried out low-density but continuous harassing shelling on several forward strongholds. However, it is almost impossible for Pakistan to follow the ridge controlled by its own side in the exchange of fire. Artillery of the same level was transported across the Line of Control, and the 120mm mortars carried on horseback were completely incapable of fighting back because their range was too short. At first, the Pakistani army, which had a geographical advantage, was able to gain an advantage. The leader of this formation is the one at the back. According to the plan, after approaching the target, the wingman will launch the attack first, and he will supplement it by deciding the subsequent actions based on the results of the first round of bomb drops. Although it is said that they are flying "between" the ridges, the height of the two planes is actually slightly higher than the ridge line. It can be regarded as a compromise between flight safety, radio range and concealment. Attention, there may be portable anti-aircraft missiles deployed on the mountains on both sides. Aslam reminded again, and then added: There are also anti-aircraft guns. With the end of the Allied operations, the fact that the most advanced B2 bomber was shot down by anti-aircraft guns half a century ago has almost spread throughout the world, and has even caused many countries to re-examine this traditional and ancient weapon. This is especially true for attack aircraft pilots like them who work hard at low altitudes all day long. In fact, the only fighter jets of the Indian Air Force that can use medium-range missiles, the Mirage 2000H and the MiG-29A, do not have particularly reliable downward vision capabilities. Therefore, the threats that need to be focused on come from below - flying at low altitude in such ghost terrain, in case of an emergency After you get through a mountain pass and find several anti-aircraft guns in front of you, even if the gods come, they won''t be able to save you. Fortunately, after a deft turn, Panther 2 did not encounter what the captain was most worried about. ?This made Aslam relax a little, and then continued to call: Tail Blade Squadron, this is Black Panther One, please report your location. There was only some noise coming from the radio, but there was no answer. He called again, but still got no response. For such an important bombing, it is certainly impossible for the Air Force to send out only two lonely Q-5s. The 14th "Tail Blade" Squadron is the friendly force used to **** them in the plan. ?This squadron switched from the ancient J-6 to the latest J-7F1 fighter about a year ago. To be honest, to this day, it is difficult for Aslam to convince himself that that thing is an improved version of the MiG-21. But all in all, the performance is good. ??If you do not take into account the insufficient range and bomb load, in terms of air combat performance alone, it is even slightly better than the F16A/B of the 9th Squadron that cannot use medium-range bombs. In fact, this model is even the only aircraft of the Pakistan Air Force that can use over-the-horizon weapons. It''s just that the performance is good, but now I can''t contact anyone at all, and it seems that I can''t count on it. Boss, didnt they just lose track of you? ??The wingman pilot, who was descending again and preparing to enter the attack route, joked: It seems like we havent heard their voices since we entered the mountainous area. Fighter pilots probably rarely practice drilling in ravines like us, so its normal that they cant keep up. Among pilots who are inherently superior to others, fighter pilots are definitely superior to others. There are not many opportunities to openly complain like this. But Aslam immediately denied it: "When the 14th Squadron received new equipment last year, Lieutenant Colonel Sami was also transferred there. According to the plan, he is the leader of the tail blade today. There is no way he can''t keep up with us. It should be just because the signal in the mountainous area is blocked. ?This explanation is a reassurance for the wingman pilots. If thats the case, Ill be relieved Aslam wanted to say something else, but after he stopped talking for a long time, he still held it back: Pay attention to control the route and dont miss the target. In fact, what he wanted to say was that although Lieutenant Colonel Mohammed Sami had superb flying skills and fruitful results, there had been rumors within the Air Force that he liked to use friendly forces or even his own wingmen as bait, while he hid in the dark and was ready at any time. sneak attack. ??The authenticity of this rumor is difficult to verify, but the known fact is that pilots who go on missions with lieutenant colonels do have a higher loss ratio. Logically speaking, this trait should not be suitable for **** missions. But the Air Force really cannot find many fighter pilots who can follow the attack aircraft pilots into the ravine. Its just that saying this now would only distract the wingman who was preparing to drop the bomb, so the captain did not speak in the end. Panther 1, I saw the target position and am preparing to drop the bomb! The wingman pilot''s breathing suddenly became heavy. While reporting on the radio, he had also turned the weapon selection **** from "LOCKED" to "BOMB", and then selected "ALL" next to it. As an aircraft designed to drop hydrogen bombs on the Great Plains, the Q-5''s sights are not suitable for this straight-forward method of dropping bombs, and there are no fancy laser aiming pods or TV cameras. The choice of bombing point can only be based on the experience of the pilot. Fortunately, in order to carry out this awkward mission, the ground crew specially replaced each MK82 bomb with a deceleration device called a "snake eye" before takeoff. Basically, there is no need to consider the lead time, as long as the bomb is dropped directly above the target. Thats it. ?At a distance of less than 2 kilometers from the target, the wingman pilot pulled up the nose of the aircraft and prepared to enter the final dive. ? It was at this stage that Aslam, who was following behind, saw a white plume rising from the side ridge and pounced on Black Panther 2, which was adjusting its attitude. Be careful, theres a Sam 7 shooting at you! ??The captain quickly reminded. The poor rear view of the Q5 makes it impossible for the wingman pilot to directly see the situation below, and it is also too late to make a roll at the moment - which is almost equivalent to giving up the attack. Therefore, he suppressed his fear and held on for one more second. After dropping all six bombs, he quickly leveled the plane, turned off the afterburner, pressed the jamming bomb launch button, and fired three sets of infrared decoys in succession. This action successfully deceived the already shaky portable missile, but the wingman pilot''s bomb-dropping action was inevitably deformed under the high pressure. He paid special attention in the rearview mirror and found that although the bomb seemed to have hit the predetermined location , but there was no sign of a suicide bombing. For an artillery position, this basically means that the attack failed. Black Panther One, I may have missed the target and need to supplement my attack! The voice on the radio sounded a little regretful. ?However, Aslam, who was following behind, could clearly see that the six bombs accurately covered almost half of the hillside, and even set off a small avalanche. Could it be that The captain had a very bad guess in his mind. Normally, this kind of position built on such an important terrain would store at least half a level of artillery shells, but now it has no intention of exploding at all. Either the shells have been fired, or... This position is fake. At the moment when he thought about this joint, the RWR''s harsh warning sound suddenly sounded in the cockpit of the aircraft. At the same time, out of the corner of his eye, he could see two white trails heading towards them at high speed behind the higher glacier in the distance. Attention, enemy aircraft! Aslam reminded loudly. (End of this chapter) Chapter 723 No martial ethics, sneak attack on Phantom 2000 Chapter 723: Not talking about martial ethics, sneak attack on Phantom 2000 While shouting a reminder to his wingmen, Aslam ignored the bombing mission and directly adjusted the weapon selection button to "EMER" (emergency release), then pulled the trigger and threw all the bombs together with the auxiliary fuel tanks. It entered the valley, and then quickly entered the subduction. In an instant, the snow-covered mountains outside the cabin rushed towards him like a high wall, and continued to recede from the corner of his vision. The Qiang 5III does not have the relatively reliable low-altitude automatic navigation capability of the MiG-27 or Mirage 2000H. Although it has a radio altimeter that can be used to avoid collisions, the pilot still has to break the control stick himself. ??In this kind of valley terrain, if you wait until the thing sounds the beep, you will basically be dead. ?However, he had to take this risk. ?The two menacing planes suddenly emerged from a distance and had obviously been ambush nearby for quite some time. ??It is very possible that as soon as our plane took off from the airport, there were secret agents lurking around and reported the news to the other side. ??The position that was blown up just now was obviously a fake position that was disguised. In other words, its a trap. Facing this kind of enemy who is armed with medium-range bombs and is well prepared, delaying time to wait for support or waiting for an opportunity to escape is obviously more realistic than climbing up and using an attack aircraft to fight other fighters head-on. Tail Blade No. 1, I am in the valley on the north side of the target, surrounded by... Sammy really likes to let his teammates serve as bait for him, and then he sneaks up from behind. It is very likely that it will suddenly rush into the opposite face. He tried to check on his wingman. Just when he was already thinking about whether he could survive in the ice and snow after parachuting, a steady voice suddenly came from the radio: But the key is that others cant refute it yet ?Aslam quickly saw the place where Sami told him to turn. After calling twice more, Aslam began to feel a little panicked. "grass" Fortunately, for most radars in this era, the thousands of kilometers of mountains at the junction of the East Asian continent and the South Asian subcontinent are definitely a nightmare application scenario. As long as you dare to fly to a low enough altitude, you can avoid it. Radar lock. Although the Qiang 5III has achieved many "shootdowns" in simulated air combat confrontations, these are more of a reflection of the gap in pilot capabilities, not the performance of the aircraft. ?Of course, this process will inevitably lose some energy, resulting in a huge disadvantage in the subsequent battle within visual range. Fortunately, before the voice completely disappeared, the other party still told the whole plan: There will be a mountain pass about 5 kilometers in front of you. Turn right out of it, and then fly east. My wingman and I are behind the second-highest mountain. You draw the enemy over and we will deal with it. Panther Two, Black Panther Two, how are you doing? Pay attention to lower the altitude! ?The other party doesnt even need any electronic warfare. As long as the frequency band is adjusted to a nearby location, some conversations can be vaguely heard. The old instructor of the U.S. military school can shot down the F15 of Cainiao''s F15 with the T45 trainer, but this does not mean that the former can confront the latter on the battlefield. is in Urdu. Also because in the valley, he couldn''t turn, so he could only fly forward with his head down. Hence, communicating in English is obviously not a good thing in this case. Can you see where my wingman is? Black Panther One, can you hear me? The radio stations in the top 5 only have simple frequency hopping encryption capabilities and poor frequency accuracy, and they are also mature shelf products in the West. He took a deep breath and decided to forget about his wingman for the time being and save his own life first. I know your place. Obviously, the rumors within the Air Force are true. ??He secretly cursed the opponent for his lack of integrity, and then, regardless of the threat of infrared bombs, he quickly activated the afterburner and accelerated towards the back of the mountain the opponent mentioned. The mountain pass ahead ?Of course, it is also possible that it has been shot down. But there was no response. Aslam''s call was only met with an extremely vague squeaking sound. It was obvious that the other party heard the question, but the answer given could not be fully conveyed. Then he has to act like he is the savior. Evidently they were the two Indian fighter jets that had been ambushed before. Sure enough, the RWR warning sound in the captain''s ears quickly calmed down. Although the likelihood of this being such a coincidence is low, it cannot be ruled out. Old aircraft naturally cannot have any satellite communication capabilities, and ordinary radios are indeed very unstable in this kind of terrain. Whether they can be connected depends entirely on their appearance. ? ?But you have to survive now and then think about the long term. Aslam struggled to find some iconic feature in the receding terrain, but was interrupted mid-sentence. In the valley, he couldn''t see the two planes on the opposite side. Sammy''s voice on the radio was also a bit blurry. It seemed that the blocking effect of the mountains was beginning to appear again. ?The moment he flew out of the mountain pass, he saw two white trails on his upper left. The nervous Aslam had to look back almost every two seconds to confirm the position of the two enemy planes. When he turned back for the third time, two white trails had turned towards him, apparently seeing the Q-5 heading into the mountain. RWR also reminded him that there was an X-band radar behind him, and it was determined to be a legal RDI type, but it has not locked on it yet. . It is the Mirage 2000H. ?This made the frightened captain relax a little. The performance of the RDI radar is much better than that of the N019 on the MiG-29, but both are basically blind when facing low-altitude targets drilling into mountains. Once it flies within visual range, the combination of the latter''s R73, OEPS-29 photoelectric sighting system and helmet sight is very deadly. Not to mention the possibility of a unique infrared-guided mid-range missile like the R27T. In comparison, the threat of Magic 1/2 is simply negligible. The slightly weak acceleration of the Mirage 2000 gave the Captain a chance. ??Before he broke out of the valley and got behind the peak Sami designated, one of the enemy planes reluctantly fired a missile. ?But of course the target was lost. But Aslam himself is also facing a lot of trouble. On the other side of the mountain is a relatively flat plateau, and there is no longer a complicated terrain for him to move around. ??The captain looked back, but did not find Sami who said he was ambushing him. He panicked instantly. ??What would it be like if the two planes from the opposite side catch up? So I subconsciously wanted to continue diving. Climb, dont dive, Im behind you near the base of the mountain. Aslam felt that his blood pressure was high and replied breathlessly: To put it lightly, its not you who is being chased by two planes? ? Even so, he still followed the other party''s request and began to slowly increase the height. ??When the pilots of the two Mirage 2000s came out of the mountain pass and saw the Q-5 that was the same as the Loach again, the radar showed that the distance between the two sides was 6 kilometers. An awkward distance that is too far for combat rounds, but a little too close for radar rounds. So the captain decided to wait a little longer. ?At the current speed, it only takes about a minute to catch up to the no-escape zone of Magic 2. If it is shot down successfully, then todays strategy is to achieve a complete victory. Replacing two attack aircraft with a real howitzer and a few other decoys, even if they are old-fashioned attack aircraft produced more than ten years ago, is still a good profit. However, when people focus their attention on the front, they often forget other situations around them. The mantis stalks the cicada, followed by the oriole. The two J-7Fs of the Taidao Squadron had also quietly touched the lower and rear areas of the two Mirage 2000s. The most easily overlooked direction for average pilots You have to turn your head while doing a roll to see it. In fact, at that distance, looking up and searching again, the target can actually be locked. ?However, activating the radar will inevitably cause a RWR alarm. At that time, it will be nothing more than a 2-on-2 air battle with a position advantage at the beginning but an energy disadvantage. Sammys personality still likes to deal with opponents in a sneaky way. When the two sides were close to a distance of about three kilometers, he and his wingman pulled the triggers almost at the same time. Two Thunderbolt 5Cs ignited from under the wings, dragging long black smoke towards the target. This is what Sami is most dissatisfied with about this plane. There is no clear distinction between smoke propellant and smokeless propellant in terms of performance, but it is indeed more deadly for sneak attacks. In fact, according to his idea, the shooting distance should have been closer. But if we wait any longer, the powerful 5-wing aircraft of the Panther Squadron in front may not be able to return. The second-generation infrared combat bombs such as Thunderbolt 5 naturally have no locking, so even though the two aircraft were deliberately separated by some distance, the two missiles still rushed to the target behind at the same time. Mirage 2000H was hit in the engine without dodge. It immediately lost all power and most of the left wing, and immediately entered a spiral downward. The second missile, launched from a slightly farther distance, arrived shortly after and almost hit the wreckage of the plane, without even giving the pilot a chance to eject. In an instant, switch between offense and defense! At this time, the lead aircraft of the Indian Army was just about to launch a missile, but found that the wingman behind it exploded into fireworks. He was so frightened that he quickly threw away all three auxiliary fuel tanks, rolled to the right and entered a dive, and turned off the aircraft''s afterburner - this This will make it easier for the infrared signal from the tail nozzle to be hidden in the decoy bomb. Slow down, turn on the radar, and use medium-range bullets to force him to use afterburner! The tail blade commander made a tight circle at a speed exceeding the speed of sound. At this time, he was basically at the same altitude as the target Mirage 2000. But the opponent has swooped down after all, so his speed is faster now. It''s just slowing down. He asked his wingman to use the radar because he was worried that the combat bombs might accidentally injure him. Two versus one, on the premise that the gap between the aircraft performance and the pilot''s level is not very big, the result is actually doomed. In the end, after using two Thunderbolt 11s to lure the opponent out of energy, Sami launched the last Thunderbolt 5C he carried, leaving the slow leader aircraft in the mountains on the west side of the Siachen Glacier. between. ?At this time, Aslam turned on the radio again: Captain Tai Dao, did you see my wingman just now? Although he asked this question, he actually had some bad premonitions. Sami was looking back at the falling umbrella flowers at this time. He hesitated several times whether to go back and kill them all, but after thinking for a while, he decided not to violate the agreement between the pilots. After all, this is just a limited conflict near the contact line, so some leeway must be left. Saw it. He controlled the plane to restart its climb and headed northwest to prepare for return: After being locked by the radar on the opposite side, I probably panicked and didnt pay attention to the terrain while descending, and crashed into a ridge. ?Aslam let out a scolding sound of annoyance. Todays experience was not a good one for him. ??Although exchanging one Strong 5 for two Mirage 2000s is definitely a big profit, this has nothing to do with his squadron, it is entirely Sammy''s limelight. Can you take me to the place where the plane crashed? "better not." Sammy refused: If the other side discovers that two planes are missing, they are likely to take off more fighter planes to retaliate. It will be difficult for us to fight against more targets, and the fuel is not enough, so we have to prepare to return. ?His reasons are very good. Although Aslam is not willing to give in, he can only agree: Yes! Get ready to return! (End of this chapter) Chapter 724 The sky in South Asia turned into a mess Chapter 724 The sky in South Asia turned into a mess After climbing back to high altitude, Aslam did a little mental calculation of his fuel level. The Qiang 5 is not an aircraft known for its range, especially in order to avoid the pursuit of two Mirage 2000Hs and create opportunities for the two J-7Fs, it also used far more afterburners than planned. Fortunately, the bombing target is not far from the airport, so the calculation result is that if we maintain a steady flight at economical speed from now on, we can still fly back easily. ?This made the captain''s extremely tense mood finally relax a little. ?So he prepared to talk about other topics to divert his attention from the grief of losing his wingman: By the way, Captain Tai Dao. Aslam asked: Counting these two goals today, have you already achieved 10 results? As a general rule, a pilot who shoots down five targets is considered an ace, and a pilot who shoots down 10 targets is considered a double ace. No, just 9. I think you will definitely have a chance. Although they are close to the line of control at this time, they still cannot take it lightly. According to his experience, about 60-70 kilometers. Such a target is the perfect target for both anti-aircraft missiles and fighter jets. This piece of information immediately made Aslam a little nervous again. ??Its just that this era is no different than World War II, with large melees involving hundreds or even thousands of aircraft frequently occurring. Haha...the results of your nine battles are all confirmed by clear evidence. The ones from the Kingdom of David...are more suspicious." After all, the three light aircraft do not have sufficient fuel, and there is no such thing as in-flight refueling. Therefore, they can only fly at subsonic speeds at an altitude of about 7-8 kilometers. After a few seconds, the wingman added: The signal source is very strong. It is speculated that there should be more than one. RWR did not give a judgment on the radar model, but judging from the frequency, it looks a bit like MiG-29. The J-7F''s RWR performance is average and cannot provide particularly precise analysis accuracy. Therefore, it will identify a group of closely spaced radar signals as one super-strong signal source. Thats true. ??If we have to say what advantages the R27 missile has, it would probably be its barely passable range, and the fact that the infrared guidance model can carry out sneak attacks silently throughout the entire process. Aslam replied in a strange tone: And they are much older than you, so the chance of catching up with you is very small... ?Whether you can get the 10th result depends largely on luck. Sammys answer this time was not polite. ?Aslams words were at least 90% from his heart. After all, although the other party used him as bait, he still saved his life anyway: By then, you should be the only double ace in the world. "Yeah, I haven''t thought about it that much, and there are also a few good players in the Kingdom of David who have achieved great success, so it''s hard to say." This wingman was specially placed at the back to act as a rear breaker and radar prompt. ?Just as the two lead pilots were joking with each other, the J-7F wingman who landed a few kilometers later suddenly reported: My RWR shows an X-band signal source at six oclock. Fortunately, although the radar warning receiver does not have ranging capabilities, considering that the two previous aircraft have not detected radar signals, it means that the other aircraft should still be on the edge of detection. Lieutenant Colonel. ?Sami seemed to be calm and didn''t care, but he was able to give his number of kills without thinking, and he knew the situation in West Asia very well. He obviously had always had thoughts. You should speed up and follow us first. I have just notified the base. They said that the nearest Griffin squadron has been sent to take off to pick us up. Sammy''s tone also became serious again. But the F16 of the 9th Squadron does not have beyond-visual-range combat capability? The voice of the wingman pilot was trembling. The 14th Squadron had briefly been equipped with the F16, so the pilots were very familiar with its performance. ?Pakistan Air Force once sought to upgrade its early-model F16A/B, but soon lost this possibility when the United States broke the contract in the second phase of the Peace Arch plan. So in the second half of the 1990s, especially after the J-7F, which has a true beyond-visual-range combat capability, entered service, those 40 wonderful-looking aircraft basically took advantage of their range and bomb load to carry out ground attacks. The bombing mission went off. There is no way they are the closest. Other planes in our squadron are also taking off, but it will take a while to catch up. The lieutenant colonels reply did not reveal much emotion: Looking on the bright side, at least it can scare the other party. ?Of course, this statement is just to comfort his subordinates. ??If the Pakistan Air Force has both A and C models of F16, then there may be a chance to be more powerful than the other. ??But the Indian army is not a fool after all. Even if the model cannot be distinguished at first, after discovering that your radar signal is APG66, you will realize that you are facing a group of soft persimmons. So, if you really want to push back the Indian army, you still have to rely on the 5th and 14th squadrons. Thanks to the high-intensity delivery in the past six months, the Pakistan Air Force has finally assembled two squadrons with a total of 48 J-7Fs. Although the scale is still too small compared to the 48 Mirage 2000s (originally 50, but two were lost just now) and 60 MiG-29s on the opposite side, it does not have to face the west and north sides at the same time like the latter. There are two directions, so it does not suffer in small and medium-sized conflicts. At this moment, a somewhat urgent voice came from the radio of the three people: "Tail Blade Team, Black Panther Team, there are 4 groups behind you, with a total of at least 16 targets approaching. Hurry up and speed up to get rid of them. Repeat, speed up and get rid of them. The 5th Squadron has also taken off and is flying to your side. Its over. But were low on fuel Aslam was still a little confused for a moment. Today''s plan was originally just to blow up an artillery position, but in just over half an hour it developed into an aerial confrontation involving dozens of aircraft. But Sami next to him had already turned on the afterburner in accordance with the requirements of the base, and flew away with a long tail flame: Dont worry about the fuel. Find another airport in Punjab to land. Besides, your speed cant keep up with ours. Lower your altitude quickly! ?One of the key points of becoming an ace in air combat is to survive long enough, so the lieutenant colonel never gets too hot-headed when he should be timid. ?At this time, Aslam''s Qiang 5III had already dived to a low altitude, and the wingman who had already begun to accelerate gradually caught up: Squadron Commander, the distance between the base and us is much farther than the radar range. How do you know the specific situation behind us? It may be that new radars have been deployed near the contact line, I dont know for sure. Sami said this, but subconsciously glanced back to the northeast, then changed the topic and said with a bit of joy: I think our situation is not as bad as we thought He naturally knew some inside information, but it was impossible to tell his wingman over the radio. ?After the last cooperation to shoot down the MiG-25, a new liaison mechanism was reached between the two air forces. At first, this mechanism only existed at the level of the Air Force Staff, but was quickly decentralized to the level of the Theater Air Force Command. The emergency air situation this time apparently came from a plateau radar station in a large northern country. Under normal circumstances, no matter how powerful the ground radar is, it will still be affected by the curvature of the earth in terms of target surveillance. Therefore, those very large ground radars are generally used for anti-missile purposes. But thanks to the special terrain nearby, the sky-defying radar set at an altitude of 5,374 meters is like an early warning aircraft that will never land. As soon as it is turned on, it can control almost half of the South Asian subcontinent''s airspace above medium altitudes. information. Since its completion, this thing has been regarded as a thorn in the side of the Indian army. The reconnaissance of the MiG-25R in the past was largely to obtain terrain information near the radar station and prepare for possible anti-radiation operations. ?Just like today, the Indian army''s planes were probably discovered as soon as they took off, but it took some time for the news to be relayed to him several times. If you calculate it this way, the response speed of the Chinese Air Force should be much faster than that of our own side... So he just said that the situation might not be that bad. As if to confirm the lieutenant colonel''s thoughts, not long after he finished speaking, RWR detected two, or rather two groups of X-band signals coming from the northeast. The identification result displayed on the multi-function display is type 1472. At present, only the J-8C is equipped with this type of radar. Squadron leader, this is... The wingman was unaware of all the twists and turns behind him, so he was completely confused about the situation in front of him. If he is attacked from both sides, he can basically start summing up his flying career. But judging from past experience, the opponent''s air force has never approached from that direction. Dont panic, we are friendly forces. The lieutenant colonel replied vaguely: Slow down the speed a little and see if the targets behind you will take the bait. As he spoke, he had already eased off the accelerator a little. ? Just now it was a fatal situation in which he had to fight more with less, and his choice was of course to jump in directly, but now the water has been completely muddied, and he still has two medium-range bullets in his hand, so there may not be a chance to steal the chicken. (End of this chapter) Chapter 725 Please explain to me, what is a surprise? Chapter 725: Please explain to me, what is a surprise? ?Slightly far away from the two Pakistan Air Force J-7Fs, a four-plane Mirage 2000H formation from the 7th Squadron was pursuing a high-speed pursuit almost along the border. Hence, it was also the first Indian aircraft out of a total of 4 groups of 16 to sense radar illumination in the forward direction. The 1472A is a "new" radar that has only been in service for three years. Although its performance is not new, its lifespan is very new. The reason why it can be recognized by the RWR on the J-7F is because it is also a product of the 14th Institute of Electrical Engineering. My family naturally knows my family, and the target of the sale is a quasi-ally who is unlikely to pose a threat in the short term, so I didn''t delete it. But for other similar types of equipment on the market, the most they can detect is that it is an X-band radar, but they are definitely not familiar with the signal characteristics. Therefore, for the Indian aircraft speeding up in pursuit, they can only perceive two sets of unknown signals from the side. Squadron Captain, he should be sent by China to observe the situation. The pilot of Wingman No. 4 said on the radio. Siachen Glacier originally belongs to the junction area of ??the three countries. Now two of them have become a pot of porridge. Although the third one has not been affected yet, it is normal to come and take a look. "Of course I know this, but why did they come so fast this time?" I remember when I was in flight school, the teacher told us that the radar above the snow line could capture the reflected signal almost as soon as we took off and climbed. Then, after more than a year of preparations, China began trying to deploy fighter jets for a long time at an airport in Geji, ALD District a few months ago to make up for the long-term air defense loopholes in the southwest region. ?Hence, he was eager for revenge and originally planned to take a shortcut from China, but the timely appearance of several Chinese fighter jets forced him to change his plan. After all, few other countries have such needs. ?It is also due to this that although the number dispatched is only a quarter of the total number of Indian military aircraft, it now occupies an excellent launching position. Even during the bat hunting operation two years ago, two J-8Cs from the 1st Air Division tried to make a transition at a high-altitude airport, verifying the possibility of the new type of fighter aircraft operating at a high-altitude airport. In fact, according to the aviation team leader''s opinion, it would be best to take off as a group to test the training results during this period. Prior to this, although China had built several military airports on the plateau, it had almost never deployed fighter jets on a regular basis. Only in a few cases did it send out individual models and ground crews for adaptive training. Maybe...its because of their radar station? However, the plateau environment tests not only the equipment but also the human body. It is difficult for the ground crews who have just been transferred from the mainland to work continuously. Therefore, each two groups of ground crews pair up with one aircraft to ensure the dispatch speed. So, either they have received the tip-off in advance and have been waiting for us, or they have deployed a new airport nearby so that they can arrive nearby immediately after taking off. For the Chinese Air Force, which in the past mainly relied on imported and imitation aircraft as its main force, this problem is difficult to overcome. However, one of Chang Haonan''s important tasks when improving the design of the turbojet 14A is to improve the engine''s startup success rate in low-oxygen environments. ??The wingman pilot who was obviously a novice just now guessed: Because although the aircraft can operate normally at an altitude of tens of thousands of meters, the impact on the surrounding environment is relatively high when it is started. ?This obviously scripted answer almost made Prayan laugh: Your teacher is right, but that radar has been there thirty years ago. However, until this time, their aircraft response speed had never exceeded two hours. ?Squadron leader Colonel Sumit Prajans voice was still a little sullen and unwilling: In fact, his guess was very accurate. ??Colonel speculated. The two Mirage 2000Hs that were shot down just now were from the 7th Squadron. ?The ones that took off today to respond to this emergency air situation were four of the first batch of eight J-8Cs dispatched for testing. Thenwhat should we do now? The voice of the pilot of Unit 4 was slightly timid. ??Although the RWR has not yet issued a locking prompt, the feeling of being illuminated by several airborne radars is obviously not good. Lets fly along the national border first. We didnt receive permission to cross the border to the north this time. If we are shot down over there, no one will be responsible for us. ?Although he was very annoyed when his plan was blocked, Prayan couldn''t think of any better way for the time being, so he followed up by half speculating and half comforting himself: And based on past experience, their fighter jets dont have much fuel left after flying near the border, and they should return after a while. Well talk about it then. According to the previous plan, the attack planes lured by the fake positions should be quickly eliminated through an ambush. Then, if Pakistan takes off larger-scale fighter planes to seek revenge, their 16 planes will be responsible for forcing the opponent''s large forces back. . As a result, I did not expect that in the end, the two three generations of their own side were beaten by 2: 1 to eat, and now it has become the Indian army to seek revenge. ?And if it extends to others, Pakistan may also take off a large number of planes in an attempt to force them back. In short, the situation has undergone a 180 reversal. ??Moreover, there are two menacing groups of Chinese Air Force fighter jets watching from the side. ?At this time, a call tone suddenly sounded on the radio. This is the Black Archers lead aircraft. We found 4 targets appearing from the opponents direction from 250 degrees, with an altitude of 8500 and a speed of 1100! ??The Black Arrow squadron was the MiG-29 squadron that was at the front and had already caught up to the MiG-29 squadron, which was about 30 kilometers away from the two J-7Fs. At present, they are the only ones with radar on, while the other 12 aircraft are silent. This can disrupt the opponent''s judgment on the size of the attacker to a certain extent. (The Indian Army obviously has no channel to know that the other two companies have been blended together) To the southwest, there should be the Mirage 3 of the Fifth Squadron or the F16A of the Ninth Squadron. They dont have medium-range bombs and can continue to pursue. ??Although Prayan is also a squadron leader, his military rank is one level higher than a colonel, so he will assume certain frontline command tasks in the air. For countries that do not have early warning aircraft, it is also a common arrangement for an experienced veteran pilot from a fighter jet to take command. "receive!" ??The Black Archer''s squadron leader''s tone became visibly excited. ?Although it is generally believed that the MiG-29 is not as technologically advanced as the F16 of the same era, if we look specifically at the early A models of the two, the former, which can launch R27 and R73, will have a certain advantage. Today may be an opportunity to clear up the name. Black Archer, pay attention to your due north direction. There are two groups of Chinese aircraft flying radars to collide with each other. If he didn''t go in a straight line, Prajan felt that he might not have a chance to participate in the war today, so he just reminded the other party on the radio. My RWR has also reminded me, but dont worry, I will avenge your two men. The captain of the Black Arrow obviously did not listen to this reminder. Playan originally wanted to say a few more words. Because the biggest trouble caused by those Chinese aircraft was the restriction on combat airspace The boundary between mountains is indeed very clear on the ground, but in the sky, especially at the critical moment when dodging missiles or entering into a fight, the boundary can be crossed by accident. Based on the relationship between the three countries, if the Pakistan Air Force planes fly in, there should be no serious consequences. But if our own aircraft enters, it will be difficult to say. ?However, after hesitating for a few seconds, he still did not speak again on the radio. Mainly because I dont want to be regarded as cowardly by my subordinates or some people in the base. ??And if the opponent really only takes off a few F16s or Mirage 3s, then it is not expected that there will be any fierce air battles. A salvo of R27 and Super 530 on your own side should solve the problem. Thinking of this, Prayan calculated the time and felt that the two escaping targets should have almost entered the range of his missiles. Activate the radar and prepare to launch medium-range bombs! ? He ??said that he turned on the working switch of the RDI radar and said to himself at the same time: Come on, lets give you a surprise After a short period of warm-up and self-test, the radar search information is displayed on the HUD. ? Similar to what he had just guessed, two targets slightly lower than his own appeared at about 10 o''clock of the aircraft. but The expected surprise was not given. Because the opponents backhand came over with a bigger surprise ?At the 1 o''clock position of the aircraft, about 60 kilometers away, another two groups, a total of 8, are approaching their targets at high speed... Fighter radar can only search a cone-shaped area directly ahead, and these 8 aircraft are obviously outside the detection range of the Black Archer. Black Archers, pay attention to your three oclock direction, there are 8 enemy planes! He shouted on the radio: Everyone, un-silence the radar! Obviously, India and Pakistan, as equal rivals in South Asia, are almost synchronized in their moves. They also prepared a huge fleet of aircraft at the back to suppress the opponent, they also adopted the formation form of multiple batches, and they also thought of using radar silence to delay the time for their own side to be discovered... ?However, Pakistan, which took the upper hand in the end, was better and surrounded the Indian aircraft fleet from its posture. ??Had Prayan not turned on the radar at that moment, the situation might have been even worse. ?In this case, there is no point in continuing to remain silent. It is more realistic to quickly see what is happening in the sky. At the same time, the eight J-7Fs that found themselves scanned by radar also lifted their radar silence. ??Although the locking distance of the specially designed small radar is very short, if you just want to search for targets, it can still be done at this distance. In an instant, the sky over the entire Kashmir region seemed to be lit up by a variety of radar beams. (End of this chapter) Chapter 726 Big win of 41 Chapter 726 The great victory at 4:1 ??Due to the lack of a unit that could have an overview of the overall situation, it took the Indian army a full minute and a half to roughly understand the current situation through the chaotic radio On our own side, there are a total of 8 MiG-29A and 8 Mirage 2000H, divided into 4 formations, generally flying westward in a fan pattern. The opponent took off a total of 4 F16s and 16 unknown aircraft that were suspected to be the latest improved J-7. They were divided into three formations, showing a situation of being flanked by two sides. ?Of course, there are also 2 or 4 unknown model Chinese fighter jets located on the side, which seem to have no intention of joining the battle, but can still put some pressure on them. On the other hand, although it is also impossible for Pakistan to have real-time linkage with the Chinese military command, it is already a huge advantage to know the number, formation, and general heading of its opponents before taking off. In fact, from the perspective of hindsight, at the moment when both sides turned on their radars, although the Indian army did not have an advantage, it still had a chance to fight. ? 4 F16s without beyond-visual-range combat capabilities can be ignored, and what is left is nothing more than a 16-on-16 mid-range bombardment. ?In such a mid-to-high-altitude, clean-background combat environment, the MiG-29A''s radar is powerful enough after all, so it won''t suffer much. Even considering the range advantage of R27 compared to Thunderbolt 11, it may still have some advantages. A slightly stilted English sounded on the public radio channel. ?This is completely different from the logic of active radar missile firing. So I can still run. As expected, a round of mid-range projectiles fired at the extreme distance missed the target. However, this round of evasion caused the Black Archers squadron to fall into a disadvantage in both energy and position, making it impossible to organize an effective counterattack. ??But at this time, the role of those few Chinese Air Force fighter jets became apparent. ?Colonel Prajan also thought about rescuing some of his teammates, but his squadron was targeted one-on-one by the eight aircraft in front of him, and for a while he was completely unable to take action. Fortunately, the 16 aircraft on both sides had all fired their medium-range bombs at this time, and had not yet entered the visual range fight that was difficult to escape. ?It wasnt until a few minutes later, when the frightened voice of the captain of the Black Arrows came from the radio, that they realized that they had been betrayed by their teammates... The waste of time is secondary. The key is that such a turn will shorten the distance with the opponent. As a result, the eight MiG-29s that bore the brunt had to disperse and turn to avoid. Because if the side that launches missiles from behind does not maneuver to avoid it, it will inevitably be shot down earlier, and the ammunition they fire will also lose its target and will not pose a threat at all. At this time, the 7th Squadron had just completed a round of evenly matched shooting, and it was unclear what was happening on the other side. ?So after holding on for a while, the Black Arrow Squadron, who had just declared that they wanted to avenge Prayan, knelt down at the speed of light, turned around and headed east, preparing to take advantage of their acceleration performance to escape. ??Both sides had already disbanded their formations in order to avoid medium-range missiles. However, the aircraft closest to the border could only make a 270 turn in a very awkward attitude in order not to enter the Chinese airspace. Therefore, when the two squadrons of the Indian Army completed communication, the eight J-7Fs of the 5th Squadron, which came from the southwest, had already fired a round of medium-range bombs at the Black Archers squadron charging at the forefront. ?At that time, the MiG-29 fleet, which had neither height nor speed, would probably be difficult to deal with these opponents. The entire flight process of the semi-active radar bomb requires the carrier aircraft to maintain radar tracking. Therefore, once the initiative is lost, the impact on the situation will be fatal. However, due to chaotic frontline command and poor situational awareness, they missed the most golden 90 seconds of response time. Warning, you are approaching Chinese airspace, please turn away immediately, otherwise you will be responsible for all consequences... If this situation continues, the two sides will soon enter a visual range battle within 10 kilometers. Only two aircraft barely fired two R27s in a low-to-high attack, but the more numerous opponents at high altitudes fired back almost at the same time. But there was no choice. ??If you insist on rushing to the other side, the situation is likely to become a mixed doubles. There is no way to survive. In the end, the plane that fell at the rear was shot down by two Thunderbolt 11s fired from the fifth squadron from another direction. ?The Pakistani Air Force was also worried that the MiG-29s that had just escaped would suddenly come back, so they only conducted a very restrained pursuit. A melee that left countless trails in the sky ended in 1:0. There is no way. When both sides have neither reliable air command capabilities nor active radar bombs, nor are they prepared to enter combat, the efficiency of beyond visual range shooting is very low. ?However, considering the previous 2:1 result and the fact that this was a calculated and unintentional ambush by the Indian army. ?Then it is obvious that Pakistan has made a lot of money. However, all this is not completely over yet. The pilots of the Tail Blade Squadron who returned from victory soon discovered a problem. Has any of you seen the squadron leader? ?During the return flight in a joyful atmosphere, someone suddenly asked on the radio. The channel instantly became quiet. The melee just now had turned into a mess, so naturally no one had time to pay attention to the three lonely planes. Perhaps you have landed in Punjab? Some people speculated. But soon, the base commander gave a negative answer: No, Lieutenant Colonel Sami and his wingman were not seen from the 9th Squadron, but the attack aircraft of the Panther Squadron has landed. By this time, Sami and his wingman had returned to the battlefield and quietly walked around to both sides of another Mirage 2000 that had dispersed and returned before it had time to regroup. He did not chase the MiG-29s that he left before because the opponent still had more than a dozen medium-range rounds in his hand that had not been fired. This is not available on these Phantom 2000s. She is completely at his mercy. According to the plan, the wingman approaching from the other direction turned on the radar first. ??Although the two missiles on the wingman had already been fired in the initial 2-on-2 air battle, the frightened Mirage 2000 obviously didn''t know this, and was still frightened and turned directly to a direction closer to Sami. Everything is within the latters calculation. When the RWR of the unlucky Indian aircraft sounded for the second time, it was already too late. ?The pilot turned around and saw two missiles that had not even completed their power phase, hitting him one after the other. ? He ??barely dodged the first one with a powerful turn, but the second missile, launched one second apart, adjusted its direction in time and detonated under the left wing of the Mirage 2000. ??The rapidly expanding continuous rod warhead ripped apart almost the entire wing, and because the height was so low, the pilot didn''t even have time to parachute... Squadron Commander, my fuel is running low, what should I do next? After rejoining one place, the wingman pilot asked in a trembling voice. With the remaining fuel, let alone returning to his base, it is unrealistic to even fly to the base of the Griffin Squadron. ?However, since Sami dares to catch up, it means that everything has been planned: Turn to direction 290. I know there is a civilian airport in Batilstan with a runway length of 3,700 meters. Lets land there. On the other side, after the 7th Squadron regrouped, Colonel Sumit Prajan realized that he had just lost more than one of his men. ***s Black Archer Squadron ?Playan punched the cabin wall in annoyance. ??Had it not been for the Black Archers'' retreat without warning, they would have even had a slight advantage in the situation. However ??He just witnessed a wingman crashing on a ridge. The pilot ejected from the cabin, but the parachute would most likely not open in time. ?Now it is discovered that another four-machine formation is also missing one aircraft. ?Just a few minutes ago, they were still thinking about using the stealth mode without turning on the radar to break the opponent''s stealth. ?However, in the end they themselves became the ones whose concealment was broken. And lost a quarter of the formation in the dark minutes that followed. ?The lieutenant colonel endured the pain and replayed everything that had just happened over and over in his mind. ??The failure of the initial two-plane formation sneak attack can also be explained as bad luck or being calculated by the oriole behind. But the ensuing air battle between the two large formations should be evenly matched or slightly dominant no matter how you think about it. Why ?The other party acted as if they knew their direction in advance. But the other side does not have a long-range air defense system or early warning radar near the border... Even if it does, it is impossible to see it so clearly due to the terrain... ifier Prayan suddenly figured out something. ?He raised his head and looked at the vague snow line on the left side of the cabin. Tomahawk Squadron, you will transfer to Chandigarh to land, and pay attention to descending altitude in time. ?Amidst the pain and anger of losing his teammates, Prayan suddenly heard an elderly voice coming from the radio. ?That is Lieutenant General Bhadauliya, chief of staff of the Western Air Force Command, who is responsible for the frontline command of this mission. Chief of Staff Hearing this voice, Prayan''s tone was a little choked: We lost four planes today, and three of our brothers failed to parachute... I know, Lieutenant Colonel, I know Badaulias tone was also very low: "The captain of the Black Arrows just told me, he said he was sorry..." ?Prayan has calmed down a little now. He knows that in the final analysis, this matter cannot be entirely blamed on the other party. ?With the loss of the first mover, even if the Black Archer notified him in advance of the retreat as soon as possible, the 7th Squadron, which had already been trapped in a mid-range missile exchange, would not be able to retreat before both sides ran out of ammunition. This is a technical gap. Chief of Staff, we cant go on like this. The lieutenant colonel suppressed his grief and said on the radio: "We must have our own early warning aircraft, otherwise we will always be overwhelmed by the radar on the mountain..." (End of this chapter) Chapter 727 Is it really better to rent than buy? Chapter 727 Is it really better to rent than to buy? ??This humiliating defeat over the Siachen Glacier has become the biggest topic in the Indian Air Force community in the past two days. In this regard, Colonel Sumit Prajan, the commander of the 7th Squadron who personally participated in this battle, once said privately that if the Air Force fails like this, it will probably lose face... "So, Colonel, do you think that the other party should have obtained information about the number, model and detachment strategy of our aircraft from the Chinese in advance, so that they could respond in advance?" In a conference room at the Western Air Force Command, several Air Force leaders, including Air Force Chief of Staff General Klimpa, and Western Air Force Chief of Staff Lieutenant General Bhadauliya, were listening to Prayan''s comments on the past few days. Review and analysis of the previous air combat operation. Thats right, otherwise those few Chinese Air Force fighter jets wouldnt have appeared near us so coincidentally. The latter nodded very firmly: "Although they certainly couldn''t command each other directly and could only conduct a one-time ventilation before taking off, the tactics we formulated in advance were too rigid and no adjustments were made during the entire execution process, so in the end they were overthrown by those who had been prepared for it. The opponent made the first move." "Actually, even so, relying on the performance advantages of our fighters, we could have maintained a balanced confrontation. However, since there is no data link and no command that can have an overview of the overall situation, I can only rely on radio to obtain radar information in the cabin. Fans, as well as target information beyond the search distance, delayed the most critical time of about one minute..." ?Playans report appears to be acknowledging his command issues, but if you analyze it a little deeper, you will find that he completely removed himself from it. ??In fact, it was more than 20 years later when the U.S. military achieved full universal use of link16 under test conditions, when Chang Haonan was reborn. In the absence of a common data link among the three armed forces, effective air situational awareness and command cannot be achieved solely by fighter radars and radios. We need to build plateau radar stations like those in China, or early warning and command aircraft. ?This passage seems to give three options, but in fact it is not And the plateau radar station The first person to ask the question was Admiral Klimpa, who was sitting in the middle opposite. Are there no other ways to improve it? ?At this moment, the entire conference room fell into silence. ?Of course, this can only be regarded as a routine question. ?However, Prayan did not beat around the bush, but directly gave his conclusion: ?At this juncture, the Indian Armys early warning aircraft project is a matter that is not convenient for public discussion. So, the only option that is really feasible is to build an early warning aircraft. ?Of course, this time it was indeed a crime other than war. So, your conclusion is ?This kind of debate largely involves the internal interests of different groups and is not entirely a military issue. Therefore, generals who do not want to cause trouble for themselves often subconsciously avoid such topics. Playan shook his head decisively, and then added: As for the role that early warning aircraft can play in air combat, I think no one in the entire Air Force knows better than you... Since then, the top leaders of Congress and the military have once again been locked in a debate over whether to build it themselves or find outsiders to solve it. ??Klingpa really didn''t want to get involved with those old men who didn''t wear military uniforms. "No." A few months ago, in January 1999, the Indian-made HS748 platform early warning aircraft, which had previously invested heavily and had high hopes, crashed due to unreasonable aerodynamic design. ? A common data link between the three services is something that even the US military in the late 1990s did not dare to think about. Just look at the topographic map and you will know that the Himalayas rise almost vertically in the border area. The Indian side happens to be in a lower altitude area and does not have this condition at all. It was quiet again. Looking at the generals who had been silent for a long time, Prayang sighed in his heart and had no choice but to use the ultimate move he had prepared: In addition, considering the incredibly fast response of the Chinese people this time, I suspect that they have deployed aircraft on a regular basis at the plateau airport. If this is the case, then the Chinese Air Force will have an altitude advantage of nearly 3,000 meters over us as soon as it takes off. Combined with the early warning command capabilities provided by the plateau early warning radar..." The colonel did not finish speaking, but the meaning of the second half of the sentence was already very obvious. For Indians who aspire to become a great and influential country, this is absolutely unacceptable. Okay, Colonel, matters about China are outside the scope of this discussion. Bhadauliya next to him said, waving his hand: "We''ll stop here today. You can go back and rest first." After Prayan left, Klimpa, who was sitting at the head of the conference table, took a deep breath, then folded his arms and leaned on the back of the chair, showing a complicated expression. The reason why the former said that just now is because Klimpa is the first pilot of the Indian Air Force to shoot down an enemy plane under the command of an AWACS aircraft. It was also because of this result that he completed the leap from a senior pilot to a senior commander. This, we have to mention, a certain big country in South Asia has repeatedly struggled with early warning aircraft. In 1971, in order to cope with the imminent conflict, the Indian Air Force wet-leased a Tu-126 early warning aircraft from the Soviet Air Force. It was also because of the help of this aircraft that, while acting from the rear, it achieved nearly twice as many results as its opponents. The conflict that year also ended with a complete victory for India. Logically speaking, after such a battle, they should be able to intuitively feel the value of early warning aircraft as a combat power multiplier. Even if they do not start self-research, they still have to buy a few and use them first. ??However, the Indians'' choice is to further establish a good relationship with the Soviet army and plan to continue renting it when needed next time... In this case, it is not even considered that it is better to buy than to build, but in a literal sense, it is better to rent than to buy. ?Later, after many efforts by the Air Force, Stan Aviation finally launched an ASP plan to develop a self-developed early warning aircraft. The product is the HS748AEW&C mentioned earlier. As a result, because Party A refused to lower the performance indicators, the designer had to install a huge radar with a diameter of 7.5 meters on a small aircraft about the same size as the Yun-7 (for comparison, the E3 and A50 are only 9 meters). , causing flight performance to plummet. Finally crashed a few months ago. ?Anyone with a discerning eye can see that this ASP plan, which has high ambitions and low power, can no longer continue. At present, we are in the separation stage after the project failed. Party B accuses Party A of being too ambitious, and the indicators proposed are simply talking in sleep and are unrealistic. Party A says that Party B has received so much money and is not doing anything, and it is afraid that it will swallow all the money. What do you think of Colonel Prayans suggestion just now? After a few minutes, Klimpa sat upright again and asked his colleagues sitting on either side of him for advice. For a while, no one responded. Finally, Badauliya, whose military rank was second only to Klimpa''s, spoke: Although what he just said was inevitably intended to shirk responsibility for himself, but... When the Lieutenant General said this, he hesitated deliberately. After all, Prayang is his subordinate, and saying good things to the other party at this time will inevitably seem to be protecting him. After making sure that his boss was not dissatisfied, he continued: But I think the problem the colonel just mentioned does exist. In the past, the Chinese could not deploy aircraft on the plateau, so the terrain was an advantage for us. The radar on the snow line could only be regarded as a trouble at best, not a threat, but now... the situation may have changed. ? ?Klingpa naturally understands the implication: Do you also think the Chinese have moved their planes to the plateau? ?This kind of thing is naturally difficult to explain clearly given the lack of satellite reconnaissance means and the fact that the MiG-25 does not dare to fly around casually. But Badauliya did not answer directly: "Chief of Staff, the MiG-25 was shot down two years ago, but it has not been investigated clearly yet..." ?This hint is extremely effective. I saw that Klingpa''s face began to look uncertain, and he held his chin with one hand and fell into thinking. (End of this chapter) Chapter 728 The ambitions of South Asia’s great powers Chapter 728: The ambitions of South Asian powers After a long time, Admiral Klimpa spoke again: If we agree with Colonel Prayans suggestion, then... what channels are there to obtain a reliable early warning and command aircraft in a short period of time? After all, I think that after going through the ASP plan, Stan Airlines should not be able to count on it anyway. Facing this somewhat sudden question, all the generals looked at each other. This time, including Lieutenant General Bhadauliya, no one spoke immediately. After all, when it comes to equipment procurement, many times it is not just a technical issue. ?If you rashly offer your opinions at this time, you may be "sidelined" for no apparent reason. ??If the plan succeeds, it''s easy to say, but if something goes wrong in the middle, it will be easy to be thrown out as a scapegoat. ?Its not like this kind of thing has never happened in the past. ??Klingpa looked around and realized that the occasion was not appropriate, so he waved to the meeting recorder sitting next to him: The formal stage of the meeting is over, lets talk about personal matters next. Then just buy two A50Us currently in service in the Russian army? To become a great and influential country, it is definitely not possible to just rent planes. ??The person just now was not a member of this interest chain. He suggested renting a plane just out of habit. Therefore, when the leader objected, he immediately changed his tune: "After the disintegration, they don''t need or maintain the dozens of early warning aircraft. We can select some in good condition and renovate them a little. This way the price will be lower than new ones, and the delivery speed will be fast. Based on our past experience, this kind of arms sales drawn from active equipment can be completed in about half a year at the earliest. Furthermore, according to Russian habits, even if it is a second-hand aircraft drawn from the active army, their price will probably not be much lower than that of a new aircraft..." The meaning is already obvious. Hence, after no longer worrying about leaving archived records, the atmosphere instantly became much more relaxed. Obviously, it is absolutely easy to form path dependence in terms of buying rather than renting. Logically speaking, this should be considered the most practical plan for the Indian army. In this way, the rest of the conversation can be regarded as informal chatting. "Chief of Staff, although the A50U will be available soon, after all, it is an old model from more than ten years ago. It still uses a traditional mechanical scanning antenna. The number of targets that can be processed at the same time is only 200-300. For our country, It will be difficult for an air force of this size to cope with the wars of the 21st century in the future. ?Hence, Klimpa immediately waved his hand: Especially Lieutenant General Badauliya, who initially expressed support for the purchase of early warning aircraft, was even more encouraged: "Although we suffered some losses a few days ago, the combat effectiveness of the army on the opposite side is really not good. Generally speaking, it is a tie. It is estimated that they will be relatively stable in the past few years, so there is no need to be too anxious about the immediate situation. You can consider a slightly longer-term plan. Everyone breathed a sigh of relief and closed the notebooks in front of them. ?However, Indians today still have dreams after all. Soon someone suggested: Can you consider renting two more A50Us from the Russian Air Force for temporary relief? After all, early warning aircraft are still relatively sensitive. If you want to buy an existing E2 or E3, others may not sell it. "Moreover, the cost-effectiveness of renting equipment is too low. The price the Russians offered for the Tu-126 was almost half of the cost of the aircraft. If there is damage or failure during the rental period, there will be high compensation... In short, it is not as good as in peacetime. Its a good deal to buy a plane. ?Those who can sit on this occasion today are all high-level officials of the Air Force. Naturally, they hope to add more good things to their own troops, so that they can also improve their voice. However, as expected, after the idea of ????buying rather than renting was suppressed, the Indians'' overjoyed side of success immediately took over. The recorder got up and left the meeting room directly. ??The words he used to guide were very good. Admiral Klingpa had almost agreed to the plan to purchase the A50U, but after hearing this, he suddenly became hesitant. ??If the early warning aircraft purchased at a large price soon falls behind, then as the chief of staff of the Air Force, it may be difficult for him to escape accountability. ??But the officer who made the first suggestion did not give in at all, and immediately retorted: But even the American E3s technical status is basically about ten years ago, and it also uses mechanical scanning radar... ?However, such arguments cannot refute the eloquent Bhadauliya. As a theater air force commander, he has been tracking the most advanced aviation technology in Europe and the United States for a long time, so he quickly found the other partys loopholes: "Because of this, the US military has launched a new early warning aircraft research and development project last year. It plans to replace the E3 and E8 models with the MC2A early warning aircraft on the Boeing 767 platform. The Russians lost their research and development capabilities in this area after the disintegration, so they did not Just a follow-up. ? ? This ??The other party obviously didnt know the details of this MC2A project, and was speechless for a moment, so he had to change the topic: So, if you think the A50U cannot meet our needs, who else can provide a more advanced model? MC2A should still be just a plan, and even if the plan is completed, Americans may not sell it to us. ?Seeing that the atmosphere in the conference room was already smelling of ignition, another lieutenant general quickly raised his head and pressed down, and then tried to smooth things over: "From a purely technical perspective, I remember that the Swedish Saab company delivered the first Saab 2000 platform early warning aircraft last year. It was equipped with an active phased array radar developed by Erieye, which should be in line with General Bhadauliya''s requirements. requirements, and although it is not off-the-shelf, it is a mature model that is already in service. With its small size, the delivery cycle should be very fast..." As a result, after finishing one sentence, the other two people who were about to quarrel looked at him almost at the same time and shouted in unison: "no!" On this matter, the two people''s attitudes were very consistent. The size of the Saab 2000 is almost the same as that of the HS748 platform early warning aircraft that we just canceled, and its take-off weight is only just over 20 tons. ??Badoria clenched his hands into fists and said emotionally: "I think HS748 has proved that an early warning aircraft of this size cannot carry a large enough high-performance radar, and the range of regional airliners may be enough for countries like Sweden, but it is difficult for us to provide it. Enough mission time. Obviously, he is not willing to purchase only a small-sized light early warning aircraft. General Badauria, whats your opinion? The lieutenant general, who had just been beaten back by the two men, had no choice but to ask: If you think none of the plans we proposed meet the requirements, you should have your own ideas, right? "Of course." ??Badauliya was waiting for this moment and immediately sat up straight: Since you have decided to purchase from outside, you should try your best to get it right in one step and choose a model that will not fall behind in the next 10-15 years. "There are currently only two countries in the world that can provide active phased array radar early warning aircraft in stock. But as I just said, the Swedish plan is too small and not suitable for a big country like us. In this way, it will Only the Philcon system of the Kingdom of David is left. But if Falcon uses the Boeing 707 as a platform, there is a high probability that the Americans will not agree to sell it to us, right? ??The question this time was from Klimpa, who had not made a clear stance just now. ?Although it sounds like a question, this issue has gone directly to the implementation level, indicating that the admiral is obviously also interested in the Falcon system. Having seen through this, Badauliya decided to strike while the iron was hot: We dont need to use the Boeing 707 platform. After all, the original Falcon still has a blind spot of about 60 at the tail. At this point, he paused for a moment, and then changed the topic: "A few years ago, China and the Great Patriotic Republic jointly launched an early warning aircraft research and development project called the ''Ring Project''. It used the Falcon system to adapt to the IL-76 transport aircraft platform. It looks similar to an A50U, but its functions are different. It is much stronger, and because it is a traditional disk antenna, it can achieve 360 detection without blind spots. Recently, due to some external reasons, the progress of this project has not been smooth. It is said that China has made many protests over this matter, but it obviously has no effect. "The early warning aircraft project should be in a state of stagnation now. The British side is unwilling to continue to push forward, but if it violates the contract directly, then at least the advance payment will have to be refunded. In this way, the sunk cost invested in the early stage will be wasted... So I think they should have a strong desire to find a home for this project. Having said this, Bhadauliya did not continue. He just looked at the colleagues next to him with a look that said "everyone understands". You want to stop this Chinese project? There seemed to be a hint of excitement in Klingpa''s tone. After the humiliating defeat in 1962, India has always regarded the northern powers as its main competitors, or imaginary enemies (although the other side does not think so). ?Hence, if we can give China an eye-opener while advancing the early warning aircraft project, it can undoubtedly be regarded as a symbolic victory. In addition to boosting morale, more importantly, such a plan is also easier to pass in New Delhi. Thats right, ?Badoria nodded: "According to previous reports, the price negotiated by Huaxia and David Country was US$350 million per aircraft. Of course, this was the situation in the early 1990s, but if we take advantage of David Country''s eagerness to withdraw funds, there would be a lot of potential. There is a high probability that the original price will be maintained. You know, even if we buy a second-hand A50U now, the price will not be lower than this figure... Moreover, the completion of this project is very high, and we should not have to wait too long to get the aircraft. (End of this chapter) Chapter 729 Open the eyes of Europeans Chapter 729 Opening the Eyes of Europeans Compared with the fierce response of the South Asian powers on this matter, the attitude of the East Asian powers appears to be much duller. Or rather, I feel relieved about the southwest direction. On the one hand, the outcome of the entire conflict hardly changed the status quo. Although the Pakistan Air Force relied on its intelligence superiority to achieve a wave of great victories, the Army, whose combat effectiveness was really poor, was still unable to resist the counterattack and destroyed several hills it had occupied in the past month. Gave it back. This is actually the result that China is most happy to see ?Whether from a historical or practical perspective, South Asia is not the focus. If too many resources are invested in this direction, it will create strategic constraints. Therefore, India and Pakistan need to maintain a balance of power. No matter which side is too strong, it is not a good sign. On the other hand, in the process of responding to this emergency air situation, the Air Force aviation and radar units also delivered perfect answers. In the past, even if the radar station detected abnormal movements of the Indian Air Force in advance, the J-7 and J-8I fighter jets nearly a thousand kilometers away could not arrive in time to deal with them. Only a few air defense missile battalions could barely act as the final barrier. . ?Under such circumstances, if a big country in South Asia really gets the idea to make some big news, objectively speaking, it would be difficult to stop it. Huaiguo Moxin said that if we could delay the approval process for ten or eight years like you in Europe, there would be no need to think about developing an aviation manufacturing industry. Of course, you still have to introduce (show off): "Since we signed the last agreement, relevant enterprises and institutions in our country have been very enthusiastic. Several enterprises that have obtained your production qualifications have begun to transfer production capacity here. The future of this construction site is planned Used to produce aircraft doors and parts of the fuselage. ??If Indias actions can bring this doomed project to an end sooner and return funds, it will be a good thing for China. Luzhou, Aviation Industrial Park. The former, which is relatively close, has even broken ground on its workshop. ?For example, Rongfei Group, which has been responsible for producing cabin doors for the Airbus A320, and Shengfei Group, which is responsible for producing tail cone work packages, have gradually begun to relocate their civilian product lines here. "Dr. White, this place... seems... different from when we came here last month?" ? Anne Colombo, senior representative of the European Joint Aviation Authority (JAA), was a little confused looking at the scene in front of her. But now that the aviation force has proven its plateau deployment capabilities and response speed, concerns in this regard have naturally been eliminated. After all, its been more than a month, there must be some changes. ??This large-scale industrial park strategy has almost become path dependent in China in the past two decades, and even Huai Guomo said it is a bit conservative. And more importantly, after senior leaders inspected the Air Police 200 project and saw the large-scale early warning aircraft development plan submitted by Ding Gaoheng, China has essentially given up on the idea of ??obtaining early warning aircraft through the ring project and turned to self-reliance. route, but on the surface it is still entangled with the Kingdom of David. ?At this moment, the leadership of the aviation industry and the Science and Technology Commission is still focused on the supplier contract previously signed with Airbus. ?If nothing else, the MiG-25 cross-border reconnaissance was completely stopped only after a fight was fought during the bat hunting operation. This matter is still in the discussion stage within the Air Force, and China obviously has no way of knowing. Therefore, when the EU aviation industry delegation, including Airbus Group, arrived in Luzhou for the second time, they were taken directly to a busy construction site as soon as they got off the plane. As for the Indians idea of ??cutting off the ring project ???If she hadn''t been here once during the previous negotiation and barely knew the way, and if the team leader was also an old acquaintance, Huai Guomo, she even worried for a moment whether she had been abducted. There are also some companies that are very capable but have not yet been included in the ranks of your suppliers. They have also set up offices here to cooperate with you in simplifying the approval process. Although the core of the park is still a wasteland waiting to be built, some impatient companies have begun to build their own factories, or at least offices, on the edges. Relevant companies, especially those that have the ability to enter the industry but have not yet entered the industry, have actually begun to operate at various levels when the industrial park has just been finalized and the location has not even been determined. ?After the company was officially opened to move in in March this year, the office of the industrial park was almost paralyzed by a swarm of business personnel for a week. But for Europeans I have never seen this scene before.jpg A gray-haired old man walking on the other side of Huai Guomo also recovered from his stunned state. ?Although he looks unremarkable, this man is Dr. Bernard Ziegler, Senior Vice President of Engineering at Airbus Group and chief engineer of the Airbus A320 project. ?? is also the team leader sent by Airbus. After China and the EU signed the agreement in April that can be said to have saved the future of the euro, the policy obstacles in the Airbus Asia (China) final assembly center have completely disappeared. Ziegler came here this time to conduct an inspection at the technical level to finalize the timetable for the construction of the final assembly line. To be honest, this kind of business is nothing new to him. In the early 1990s, Ziegler led a team to conduct similar inspections in Eastern European countries that had just opened their markets, and in South American countries including Brazil. The conclusion is that for these developing countries, even if they have a certain aviation industry foundation, there is still a big gap with Airbus'' requirements in terms of operational efficiency and project management. There is no doubt that China is also a developing country. Hence, before this trip, his most optimistic estimate for the completion of this production line was probably 5-7 years later. As for truly achieving the double guarantee of output and quality, there is no way to calculate the time. ?However, just a few hours after landing, his eyes opened wide. So, your plan is to...concentrate all the industrial chains related to our Airbus Group here? Ziegler turned around and confirmed to Huai Guomo, who had just finished his conversation with Annie. ?Of course he could tell that this was what the other party just said, but he still felt it was a bit exaggerated. The aviation manufacturing industry involves too many industrial categories and is too complex. It is of course impossible to centralize the entire industry chain. Huai Guomo shook his head and denied it very simply. However, before Dr. Ziegler could breathe a sigh of relief, he changed the subject again: However, we are indeed prepared to centralize all first-tier suppliers as much as possible. ??Ziegler''s unsaid words were stuck in his throat, and his eyes trembled when he looked at Huai Guomo. The latter wanted this result, so he paused for a moment before continuing: I know that Airbus aircraft in Europe first produce large components in factories located in different places, and then use special A300-600ST transport aircraft to transport them to Toulouse for final assembly. "But for us in China, on the one hand, we lack special transport aircraft, and it is difficult to remotely transport large components at the entire fuselage level. On the other hand, our advantages mainly lie in cost and efficiency. If we also adopt the method of decentralized production and then centralized assembly, model, then the advantages in these two aspects will be reduced. "In comparison, we are more inclined to increase investment in infrastructure in the early stage and centralize the industrial chain in advance. In this way, the large components produced only need to be transported by land for final assembly. It happens that we also have enough land and administrative resources. ability, so we made such a plan. ButDr. White. Ziegler frowned slightly: "Even so, most of the large components required for final assembly still need to be produced by factories in Europe and then transported to your country by air. Moreover, the A300-600ST itself is built on a mature platform, and the flight cost is similar to that of a normal passenger aircraft. , for an industry like aviation manufacturing, it is not a big expense. It should be said that his doubts are justified. ?Flying large components from first-tier suppliers to final assembly plants may sound like a luxury, but considering the very high value-added of products like aircraft, it is not that difficult to accept in real terms. ?Moreover, even if the first-tier suppliers are brought together, many parts provided by the second-tier suppliers, such as the aircraft fuselage bulkheads or landing gear actuators that Jiangzhong plans to produce, will still need to be transported by air. It is just an aircraft that does not need to be specially modified. But Huai Guomo can''t say that we are not only preparing to produce your Airbus aircraft here on a small scale, but also preparing to produce other companies'' aircraft here, and may even include the aircraft of your archrival Boeing. If we don''t plan for the long term, then Just transport aircraft transporting large parts may not be able to arrange routes due to too many sorties... So I had to focus on the front half: "Dr. Ziegler, according to our plan, the first phase of the cooperation not only includes a final assembly line, but also transfers the A320 fuselage section to China for production, and these ancillary facilities are exactly what is planned. part." ?) ??Ziegler just gasped and said to himself that your ambitions are not small. It doesn''t look like you just want to do final assembly, but more like you are preparing to move the entire aircraft production process... Dr. White, with all due respect. He said firmly: Although the body of a passenger aircraft looks simple, it actually includes many structural parts and has very high requirements for processing quality and craftsmanship, especially... ?But before he finished speaking, he was interrupted by Huai Guomo waving his hand: Dr. Ziegler, of course I know what you are talking about. "As for whether we have this ability, I believe you will be able to make a judgment later in the trip." (End of this chapter) Chapter 730 fighting left and right Chapter 730 Fighting each other As the leader of the Airbus delegation, Bernard Ziegler certainly knew that after finishing his trip to Luzhou, he would go to Jiangcheng to visit a company that produces and operates heavy-duty forging equipment. In fact, they even applied for the second trip themselves. ??Just to take a look at Chinas technical level in the field of forging technology. But both Ziegler himself and the technicians who applied at the time wanted to hand over the production of some non-important components to China first. ?This is not because they deliberately obstructed it. The main reason is that the French themselves have a 65,000-ton heavy-duty die forging hydraulic press imported from the Soviet Union, and they have a very intuitive understanding of the technical difficulty of forging and producing large-size components. Lets not talk about whether Chinas equipment can meet the standards. Even if there is a mature equipment, it does not mean that it can be put into production immediately. ??A 10,000-ton hydraulic press is not a punch press used in small workshops. It can be operated by just learning. Even if different equipment wants to produce the same parts, the process parameters will be different. Even if they wanted to teach, it is unlikely that they would be able to learn it in a short time. Under the roof of the factory building, even banners celebrating the 50th anniversary of the founding of the People''s Republic of China have been hung. Secondly, as the number of orders continues to increase, the production pressure on the factory in Toulouse is also increasing. For this reason, he has repeatedly proposed to expand the scale of the Toulouse factory, but he has been repeatedly kicked, and until now he has not received a clear permission. . The construction of a new production line will also help to force the local area to improve efficiency. As for the content of preparation ?Of course, as a technician, no matter what he thinks in his mind, Ziegler is still relatively cautious in his stance and will leave himself sufficient escape routes. ?Hence, he just nodded calmly: Then, I look forward to the next trip bringing us more surprises. ?Although it is only late May, giving gifts for National Day is not necessarily limited to October. Some units will even start after entering 1999. Although it is presented as a "trial production", the basic processes of a heavy-duty hydraulic press include six: fast forward, pressurization, pressure maintaining, pressure relief, return, and stop. The entire production process can take anywhere from a few hours to more than ten hours. It takes several hours, and the whole process is accompanied by strong noise and vibration. The two steps of pressure relief and return are even more dangerous... In short, it is impossible for leaders and guests to watch the entire process on site. ?At the same time, in Jiangcheng, Chang Haonan is also making final preparations before trial production of the die forging press. And more importantly, from his point of view, he actually hopes that this Asian assembly center can be completed and put into production earlier. First, the cost of production in Asia and sales in Asia will indeed be lower, which will also help Airbus continue to expand the Asian market by taking advantage of the momentum of the previous two years. It is natural to go through the entire production process. ??You must complete the first few steps in advance, wait until the ceremony begins, take the product out of the forging press, and celebrate at the end. What Chang Haonan and the others are doing now is to test the feasibility of the entire production process according to the process parameters of the J-11B fuselage frame. "Mr. Chang, the new functional processing method you came up with before, we tested it, and it is indeed much more efficient than before." Lin Jingtang walked into the control room from outside the door, holding a laptop and a large stack of paper information, and then carefully placed it on the table: "Originally, we planned to calculate the results in about three months. Even after changing the algorithm, we originally expected it would take about two months. However, in actual calculation, it only took one month. Not only did we calculate the parameters, but we also added extra Optimized again. Hey...actually, this is not entirely the result of the algorithm. ?Chang Haonan waved his hand towards him: The main thing is that I told the computing institute to increase the allocated computing power. Otherwise, even if the algorithm is changed, it would not be possible to produce so much quickly..." So thats it? ?Lin Jingtang was stunned after hearing this: I thought there was something wrong with our calculation estimate... ?At this time, He Ming, who was wearing blue work clothes, also came back from the workshop. He happened to hear Chang Haonan and his two chatting, so he continued: "There is no way. Our factory needs this partition very urgently. The key superior leaders have already concentrated the technical staff on Project 11. We still hope to get the B-model prototype after the major modification within this year. come out." ??As he spoke, he took off his safety helmet and hung it on the coat rack by the door. Then he sat down next to the console and watched the equipment operator enter the operating parameters one by one. Indeed, its similar to our project, and it also happens to be an opportunity to give a gift to the National Day. ?Lin Jingtang said without looking back while checking the parameters on the computer. But He Ming shook his head: "The Type B aircraft of Project 11 will definitely not be able to make the National Day gift in time. Even if it can make its first flight within the year, it will only be in November or December. Besides, we have almost completed the gift with the help of Mr. Chang over the years. Its become a daily routine, and this model is not bad. The key point is that in the past we have always built the aircraft and then waited for others to build the aircraft, but this time..." Speaking of this, he glanced at Chang Haonan next to him: "Currently Mr. Chang has taken out the supporting engines, but our aircraft is still there... Moreover, the aviation industry and aviation power will be split up in two months. Project 10 and Project 11 are considered to be separate. In the first round of cooperation after returning home, if both parties are held back, it will not look good..." The new plan of the J-10 is the opposite of the J-11B. The internal equipment has not changed much, but the aerodynamic and structural design are so radical that it requires a new round of wind tunnels, and the progress will definitely be slower. Therefore, compared with The important task of improving the progress of Turbofan 10 can only fall on the latter for the time being - ??In the past, it was always said that the engine was holding us back, but now we are being hung up and beaten as soon as we separate. No one can afford to lose this face. ?However, after hearing He Ming''s explanation, Lin Jingtang frowned. After thinking for a while, he raised his head. He first looked at He Ming, then at Chang Haonan, and finally at He Ming, showing a complicated expression. Why are you looking at me like that? He Ming was a little embarrassed by the look. Look ?Lin Jingtang had also completed the parameter check at this time, so he simply put the computer aside: According to you, the turbofan 10 was designed by Mr. Chang. He Ming nodded. But the aircraft bulkheads, equipment and processes we are currently producing were also developed under the leadership of Mr. Chang. He Ming continued to nod. "Then isn''t this equivalent to... letting Mr. Chang fight with each other?" (End of this chapter) Chapter 731 A gift for National Day! (4K) Chapter 731 A gift for National Day! (4K) ifier When Lin Jingtang said this, He Ming suddenly felt... It seems that this is really the case. Originally, Chang Haonan did not directly participate in Project No. 11, including subsequent improvement projects. After all, through the training of the previous August 3rd Project, both the 601 Institute and the 112 Factory have accumulated a group of technical personnel with relatively strong combat effectiveness. As a result, when it comes to first-tier suppliers, they still havent escaped Chang Haonans shadow. ?However, regarding this matter, He Ming''s mentality is still relatively good. There is no shame in looking for foreign aid. Dont ask, even the turbofan 10 has done the job. He Ming was stunned when he heard this model: Turbojet 6D? He Ming scratched his scalp, with a hint of sadness in his tone: ??Just as the topic of the Aviation Development Group was mentioned again, He Ming took advantage of the situation and changed the topic: After the official establishment of the Aviation Development Group, turbofan 10 should be regarded as a project that has achieved a good start, right? "no the same." Of course he knows about the Turbojet 6. After all, it is the power of the J-6. strong 5 After all, judging from future experience, with the exception of the aerospace industry and the weapons industry, all other fields that have undergone parallel splits, such as aviation, shipbuilding, railways, etc., have been re-merged after going through some twists and turns. Do you understand what a control variable is? Chang Haonan, who was standing next to him, was just watching the fun, but the topic was suddenly brought to his head. Seeing this, he quickly waved his hand: Chang Haonan agrees with He Mings view: Because the turbofan 9A went relatively smoothly and the J-H 7A will be put into production soon, the army did not want to strengthen the 5D model in the end. Chang Haonan explained. But for colleagues who are engaged in aviation development next door, it often happens that the research and development work is going smoothly, but because the installed model is no longer available, or the positioning of the installed model changes, the project fails or is repeated. ?Although he has not been officially included in the aerospace power group''s preparatory team, he is still one of the future team members, so he naturally knows something about these things. But now, it seems that the host and power have formed some kind of healthy competition. But it should have been discontinued for more than ten years. ?Of course, as a target for others to win over, it is not easy for him to say much on this matter. So in terms of "competing for reputation", the Turbojet 6D is even on the same level as the Turbofan 10 in a sense. For someone who builds airplanes, whether the project succeeds or not, they are ultimately responsible for themselves. It is impossible to say that I am not feeling depressed. So strictly speaking, the first completed project after the establishment of the Aviation Development Group should be the turbojet 6D ??The first model that most of the 112 Factory employees of He Ming''s generation were responsible for after joining the work was the J-6 and its improved version. "How can the influence of such a small project be compared with that of Turbofan 10... A good start is about influence. Even if Turbojet 6D progresses faster, for a newly independent deputy first-level central enterprise like Aviation Power, the symbolic significance is still The Turbofan 10 is still bigger. Ah...its the power of strong 5D. If you didnt tell me, I would have almost forgotten that there is such a plane... There have been so many good news in recent years, almost one after another. It always feels like those old models were a long time ago..." Chang Haonan shook his head: Although the Aerospace Power Group will soon become independent, in the final analysis we are still comrades in the Science and Technology Commission system. Even if there is competition, it should still be carried out within the general framework of cooperation. In fact, when it was first proposed to split the aviation industry according to business differences, Chang Haonan''s idea was simply to allow the aerospace engine to be independently developed independently of the main engine model, and by the way, it could also reduce unnecessary work to a certain extent. Resources are invested repeatedly. "The influence of the turbojet 6D itself is indeed not great, but it is the first aeroengine project in our country that continued to develop and finalize the design even though the corresponding aircraft model has been cancelled. The symbolic significance of this is The aviation power group attaches great importance to it. After such an explanation, He Ming suddenly became enlightened. Since Chang Haonan said so himself, it is naturally impossible for the other two to continue on the previous topic. Strictly speaking, Jiang Zhong is not an enterprise in the aviation industry. Producing fuselage parts for Factory 112 is a normal business practice. Dont over-interpret it..." "However, the operation of the aviation power side has become relatively independent in the past two years, so we have retained the turbojet 6D model in the name of self-funding by the research and development unit. We should also be doing dual-engine installation tests at present, but the progress Its much faster than Taihangs, after all, its just a limited improvement. ?He Ming had a smile on his face and said in a relaxed tone: As for competition, it was weakened as a non-important factor in the original plan. Chang Haonan raised his head slightly, thought for a moment and replied: According to the current timetable, if nothing else happens, the design of the Taihang project should be finalized next year. So Mr. Chang It belongs to the willow tree that has been planted unintentionally to form a shade. Strong 5 it is true that it has fallen behind the times in all aspects, and the last improved version that was equipped in batches for troops was indeed a version more than ten years ago. ?Because Aerodynamics has not yet been formally established, and Chang Haonan has not yet obtained the key doctorate degree, the appointment of the chief planner has not yet been announced. ??Lin Jingtang, who had not spoken just now but was just listening to the conversation between the two, suddenly took advantage of this moment of silence to intervene: "You know the situation over there so clearly, you should be... going to work there?" By the way, Mr. Chang. ?But its not really a secret. So he nodded simply: I cant talk about being high, but I do have a position there. "After all...even if the Turbofan 10 has reached the end of research and development, it is only a model after all, and it has the nature of massing the whole country to conduct military training. In terms of the comprehensive development level of aviation development, our country is still far behind the aviation powers. gap." From another perspective, if there is a gap, there is room for improvement... Just as the three of them were talking to each other, there was already a sound of motor running in the workshop, followed by a harsh creaking sound. This is a sign that the die forging press has started to pressurize. The empty load experiment has been completed before, and whether the trial production task can be successful depends on the next few hours. One week later. ?When leaders from all walks of life from Beijing and the European delegation that had just finished their trip to Luzhou arrived in Jiangzhong, Chang Haonan had already prepared everything. When a big leader comes in person, the first thing to do is to visit. And they are visited separately. The members of the European delegation are knowledgeable, but as foreigners, they must not be allowed to run around and just stay in the forging workshop and watch the excitement. Domestic leaders and guests can leave as they please, but most of them are laymen who can only understand that this is a very large and powerful equipment, so they can just stay in the forging workshop and watch the excitement. ?Only for knowledgeable leaders, the seemingly ordinary screens and parameters in the control room are more attractive than the equipment itself. ??The chief raised his hand, pushed up his black-rimmed glasses, and asked Chang Haonan who was following him. "I remember, when this project was reported before, it was said to be improved on the 68,000-ton hydraulic press developed by Qinghua University in the 1980s?" Being able to ask this question right away obviously means that you have seen it before. Relevant technical information. Come prepared. Thats right. ?Chang Haonan took a deep breath and calmed down a little: Parts such as the hydraulic mechanism, correction system, electrical equipment, sensors and auxiliary equipment have adopted many of the results achieved that year, otherwise it would not have been possible to put into trial production in such a short time. After hearing this answer, the leader lowered his body slightly and looked at the drawings in front of him carefully: Before coming here this time, I took a look at the design of that forging press. Compared with the one you built, the difference seems to be quite big... Yes, the overall design of the previous machine was the orthogonal pretensioning frame originally invented by Academician Shen, which is a type of prestressed steel wire wound frame. Faced with a leader who asked such detailed questions, Chang Haonan had no choice but to brace himself to deal with it: "However, during the research and development process, we found that this kind of frame is more suitable for small and medium-sized die forging presses below 20,000 tons. If we want to apply it to the level of 75,000 tons, there are too many problems that need to be solved, and they are all It is a relatively weak technical field in our country. So, when determining the overall design plan, we finally chose a C-shaped plate structure rack. The idea is similar to the two Soviet equipment with the same 75,000 tons, but the design goes a step further, making the entire machine The equipment has improved significantly in terms of stability and predictability. In fact, Chang Haonan was not prepared to take the technical route of wire winding the frame from the beginning. It''s just that when he wrote the feasibility report, his influence was not as great as it is now. In order to improve the pass rate, he needed to find some projects with solid foundation in the past to endorse, so he wrote the research and development plan for the 68,000-ton hydraulic press. Go in. ?Now when the leaders see the drawings with different basic structures, they must understand what is going on. ??But Chang Haonan can''t directly say in front of others that I just wrote it casually to deceive you. In fact, I had other plans... ?That would be a bit too outrageous. ?Some things are just tacitly understood. The industrial control system of this equipment was also developed by ourselves? The chief signaled to put down the drawings in front of him and looked at the operating parameters displayed on the computer screen again. Except for some consumables such as hydraulic oil and auxiliary equipment such as electronic components and sensors, the entire equipment from paper design to engineering implementation is completed by ourselves. Chang Haonan replied decisively: As for those parts that cannot be produced domestically for the time being, we are also actively contacting leading companies in related industries. We have held three demand matching meetings so far, striving to achieve localized replacement in the shortest possible time, or at least backup replacement. ?After a series of questions, the chief, who always maintained a serious smile, finally nodded slightly, obviously quite satisfied with the condition of the equipment. Looking at the data above, the trial production process should have reached the final step, right? He pointed to a curve on the computer screen, and without waiting for Chang Haonan or anyone else to answer, he continued: I can still understand the pressure curve of this working cylinder. Since its almost over, lets go down and wait for a while The big leader has already spoken, and others naturally have no choice but to follow suit. ?The group of people left the control room in a grand manner and went downstairs to the viewing platform that had been set up in the workshop. At about the same time. The visiting location for high-level delegations from EU countries is located on the other side of the factory building. ??After all, we are foreigners, so we still need to physically isolate ourselves on such important occasions. The first time Anne Colombo walked in here, she was surprised by the several-story-tall piece of equipment in front of her, and she had to raise her head deliberately to see the top. ?Although she is considered a technician, she has basically left the front-line research and development position. Secondly, even before leaving, she was mainly responsible for paper work, so she has never seen the similar equipment in France. I think... they might be really ready? ?Anne hesitantly confirmed to Bernard Ziegler next to her. As a veteran aircraft designer and aeronautical engineer, the latter will naturally not be deterred by this little fuss: You cant say that yet, He shook his head slightly: Just having one piece of equipment cant prove anything. There are many large-sized forgings in key locations on the fuselage, and the requirements for craftsmanship are even higher than the requirements for the equipment itself After we bought the 65,000-ton hydraulic press from the Soviet Union, it took nearly three years from the first successful start-up to the forging of large-size products that met the requirements. This was all with the help of Soviet technical personnel. guidance, and their device itself has not even been verified..." I wouldnt say theyre definitely not ready, but in any case, theres no reason to be too optimistic right now. But before I came in, I saw the promotional slogans they posted in the factory. They all said that trial production would be held today? Thanks to the fact that both she and her husband have close business ties with China, Anne has also learned some Chinese over the years. Since this is Ziegler''s first time in China, it is impossible to understand what those square characters are, but he can also tell that this is the final preparation before production. ?However, in his experience, the gap between trial production and actual production... It''s still relatively big. Madam, generally speaking, some relatively simple or even symbolic workpieces will be selected for trial production, such as the simplest, a long strip or a semicircular steel plate. Ziegler looked at the hydraulic cylinder that had begun to slowly reset, and explained to Anne next to him: And the structure of the aircraft bulkhead is much more complicated than the workpieces produced in the trial. It can be said that they are not the same thing at all..." ?While the two were chatting, the leaders and guests on the other side had also finished taking their seats, and a host began to introduce the general process of today''s trial production ceremony. In this era, there is no condition to configure automatic translation equipment, and it is impossible to provide an interpreter for every member of the delegation, so the content of the speech can only be briefly explained. Can you understand what the people on the stage are saying? Ziegler asked. I spoke a little fast, maybe it was to celebrate the 50th anniversary of the founding of their country or something Anne is not a Chinese major after all, and the information she can understand is not even as good as the simplified version just provided by the translator. ?But thats not important either. They will have a more detailed discussion session later, so if you have any questions, just ask them then. After some speeches and celebrations, the loading beam of the forging press finally rose slowly. ?The workpiece produced during trial production was slowly pulled out from between the upper and lower beams under the traction of two crane arms, and then lifted into the air. You see, just like I just said... Ziegler stopped abruptly mid-sentence. Because what he saw was not a steel plate. It is an obvious aircraft partition. It''s just not a passenger plane. It should be a fighter... (End of this chapter) Chapter 732 The French are stuck? Chapter 732 Are the French stuck? Not only Bernard Ziegler, who looked confident just now, but also Anne, who was sitting next to him and just watching the excitement, was stunned after seeing such a thing suddenly. First of all, it is slightly different from the "simple metal plate" mentioned earlier, and secondly, this thing is not close to any workpiece in her cognitive scope. Dr. Ziegler, what is this? ?She turned her head and hesitated for a moment, but finally asked. Although the forging process can produce tens of thousands of workpieces, considering that after they applied for a visit, China agreed without hesitation, so Anne reasonably speculated that the thing in front of her should still be related to aviation. right. The bulkhead of the aircraft fuselage...what else could it be? ??Ziegler was almost turned red by this question. After all, he had sworn a few minutes ago that the trial production process would be based on the simplest workpiece. ?As a result, when the blind box was opened, a big guy was taken out. ?But Anne didnt mean anything sarcastic: Butthis ? It''s just that the semi-finished products or test products produced in those steps cannot be counted in the category of "products", and they will not have official production serial numbers. Ziegler nodded, his eyes still fixed on the forging press and the workpiece that had been hoisted into the air: No one can be said to be competent until the product is certified. Anne patted it twice, then put down her palm and asked in a low voice. ?? She originally wanted to say that this thing looked different from the airplane partitions she had seen, but she quickly realized it after the initial mental shock: While speaking, the host on the stage had already announced the success of the trial production of product zero of the die forging press, and a tsunami of cheers and applause burst out from the stands in China. Fighters naturally cannot compare in size with mainline airliners. The spanwise size of this workpiece...well, is the width. I visually measured it to be about 2.5 meters, which is slightly smaller than the A320. As for the height, the difference is even greater..." In the process of equipment development and process testing, there must be a large number of actual machine tests. Ohso this should be a fighter jet ?Of course, strictly speaking, this is not actually the first workpiece produced by the die forging press. Ziegler replied: Butit looks like there is still a big gap compared to the size of A320 and A330, right? Yes, its the rear fuselage of a fighter jet, and it looks like the size of this aircraft is probably quite small Anne has never been exposed to military aircraft in her entire career, otherwise she would not have been able to recognize what this thing was just now, so she just asked confusedly while clapping along: In other words, do they really have the ability to produce large parts of the A320 airframe now? Although the EU delegation will certainly not be as excited as the Chinese themselves, the atmosphere has reached this point anyway, so they also applauded, and some even learned to shout in unfamiliar Chinese pronunciation. How many voices. Ziegler shook his head: ??Although his judgment just now was a bit wrong, Ziegler is not a hard-tongued person. ?Furthermore, as a senior leader of Airbus, the Asian assembly center is also good for him. But on the other hand, passenger aircraft do not need to withstand as much overload as fighter jets during flight, so even if they are smaller, the structural strength of fighter jets may not be lower than that of small and medium-sized passenger aircraft "However, at least judging from the size and purpose of this workpiece, they definitely have this potential, so after returning this time, I will consider arranging a round of production appraisal. If it can pass, we can start to gradually put part of the fuselage The production of structural parts will be transferred to China. At this point, he suddenly turned to look at Anne next to him, and at the same time changed the subject: Mrs. Colombo, your JAA cannot set up additional policy obstacles in this regard. ?In terms of industrial transfer, the interests of JAA as an industry management organization and Airbus Group as an enterprise are not completely consistent. Even though the original intention of the formers establishment was to improve the competitiveness of the latter, after so many years of development, it has already generated millions of workers of its own. ?For example, many JAA senior officials have party backgrounds in several major European countries, and naturally hope to keep the aviation industry within their own borders. However, this kind of interest relationship is not monolithic. ??If the forces behind these people are from the opposition, they will hope that companies will take away all the jobs. ?For example, the expansion of Airbus''s Toulouse factory has caught up with such a thing. ??The person in charge of the environmental assessment happens to be an opponent of the Midi-Pyrenees regional assembly. No matter how much money is spent, he is unwilling to deliver results to his political opponents. Otherwise, Airbus would not have been so active in the Asian assembly center. Anne waved her hands decisively: Dont worry, we have signed an agreement before to provide policy convenience for Chinas final assembly project. But obviously, such rhetoric alone cannot gain Ziegler''s trust. ??How can he still not know the virtues of the EU institutions? If he really wants to interfere with it, it will be difficult to restrain it with just a piece of agreement. Looking at the other party looking at her with a suspicious expression, Anne also knew that her organization was not very trustworthy. In fact, the reason why she was sent here to handle this package of projects was largely because she and her husband were highly bound to the interests of China, so they were more attentive to their work. Its just that this kind of thing must not be said in public, so Anne had to explain further: Moreover, its not just about the agreement. Revitalizing the euro is now a top priority for the EU, especially for several countries in the euro zone. The Chinese have a lot of cards in their hands right now, and no one will joke about it. Its better that way Ziegler said and looked forward again. ??The workpiece has been placed on a special bracket at this time, and it looks like it is ready for viewing. Sure enough, several staff members soon came up and said in less fluent French and English that the equipment had been locked and invited members of the EU delegation to visit the production area. Compared to his colleagues around him, Ziegler had little interest in the majestic machine itself. After all, the die forging press itself is already a very mature industrial equipment, and the overall structure that can be seen at a glance from the outside is actually not very attractive There are only a few types in total, and even a lot of information is completely public. The truly valuable part lies in the design details of several core structural components, as well as the algorithms and operating logic of the corresponding industrial control system. Especially the latter. At present, the forging press in France is also in urgent need of CNC transformation. However, the Russians who built the equipment back then have lost a lot of technical data, so the progress of the transformation has not been optimistic. As for several other similar types of equipment in the world, they are all antiques that were put into use thirty or forty years ago. Only the Huaxia machine may have considered the application of CNC systems in the design stage and made targeted optimizations. The reference value is still full. Its a pity that the tour itinerary did not include the equipment operation room. Of course, this is also reasonable. After all, the main purpose of letting outsiders visit this kind of equipment is to demonstrate capabilities, or to show off. No one is stupid enough to reveal their special skills. Hence, Ziegler came almost directly to the newly produced partition frame. It was only then that he realized that the size he had just estimated was a bit too small. The width is not 2.5 meters, but more than 3 meters. ??And if only the fuselage frame has a width of 3 meters, then the entire aircraft... It should be a heavy fighter, right? Just when Ziegler leaned down to see if he could discern any clues, a slightly unfamiliar voice suddenly came out from behind him. is French. He turned around and found that the person who came was a half-lived face that he had some impression of but couldn''t remember clearly. But in short, it must be someone from this delegation. Well, judging from the size of the fuselage structural parts, the aircraft itself must be the size of an F15 or Su-27. ?Ziegler nodded, and then returned his attention to the workpiece again: I remember that China should have signed a contract with the Russians to produce Su-27 fighter jets in their country. From this point of view, it should be used there. "Speaking of which, the Chinese air force equipment has been updated very quickly in recent years. I remember that when they held an air show the year before last, they only showed an improved version of the second-generation fighter jet. Only three years have passed, and it is almost Produced its own third-generation heavy fighter..." There is a bit of sourness in the tone of this sentence. Although the Mirage 2000 can be considered a third-generation aircraft, it is obviously far behind its peers in terms of size and development potential. ?This also reminded Ziegler of the other party''s identity. ? It should be the head of a certain department of Dassault. But he cant remember exactly which department it is. "Isn''t your Rafale about to enter service soon? When I went to a meeting in March, I heard Dr. Fischeffer say that the first mass production model has begun to be manufactured. Although it is still a bit small, the technical level is definitely higher than ten Isnt the Su-27 from years ago stronger? ?Daniel Fischeffer, head of Airbus Combat Aviation Systems Division, is responsible for developing combat-related software control systems for the Rafale fighter jets. We are old colleagues with Ziegler. It was indeed like this before ?The opponent took two steps forward and stood side by side with Ziegler: But at the beginning of this month, General Electric suddenly withdrew its technical support for Snecma, so the situation is a bit difficult to say..." (End of this chapter) Chapter 733 Design finalization is not the end point Chapter 733 Design finalization is not the end Snecma is the developer of the M88 engine used in the Rafale project. The core engine used by the M88 is still the CFM56, and heavily refers to the design of the F110 and F404 engines. There are even quite a few parts directly operated by General Electric. Including CFM56 itself, although it is nominally jointly developed by Snecma and General Motors, in fact the two are not equal at all. ?For a long time, Rafale directly installed two F404s for flight testing. Although the M88 has theoretically entered mass production, the stability of model A is very poor. What is ready to be installed is Type B which has been reduced in thrust and improved in anti-asthma performance. It is still in the development stage. However, after GM withdraws its technical strength, it may be difficult to enter service with the aircraft in 2001 according to the original schedule. As for purchasing F404 ??That person was just coming over to chat. After all, GM''s withdrawal was not a secret. It was just that Ziegler rarely got involved in military aircraft projects, so the information in this regard was not updated fast enough. So making this suggestion is asking for trouble. Thats right... thats what I said. At most, it can only reduce the thrust a little bit... In short, the air force model is easy to say, but in this case, the navy type will be a little more troublesome..." Bernard Ziegler. ??This wave of GM is obviously under the instruction of the big boss behind the scenes to retaliate for failing to bring down the euro and France''s betrayal of taking the lead in the Allied Forces operation. ?At that time, five European countries jointly developed the EF2000. In the end, the French felt that those guys were really not good enough, so they finally independently developed the Rafale. So he shook his head decisively: Nono, I just want to say that after all, Snecma has been involved in the engine field for many years, so there should be a solution. Firstly, a sudden change of engine for a mass-produced aircraft will cause the already programmed flight control to need to be rewritten, and secondly... But now that I heard that he seemed to have a new idea, my eyes suddenly lit up: Do you have any alternatives? In fact, there are very few colleagues who don''t know him. It''s just a normal courtesy to say his name again. How could I sell you F404 casually? ??But after thinking about it, I feel that the nature of Dassault and Airbus is still different. The A330 can use the Trent 700, which does not mean that the Rafale can use the EJ200 In fact, what Ziegler just thought was to simply go to the British to purchase the EJ200 that will be put into service soon. After some small talk, the man stretched out his hand towards Ziegler: Oliver Weili, Head of China Region, Dassault Aviation Civil Aircraft Division. ?In the European aviation community, Ziegler is not required to state his title in most cases. ?The other person shrugged: Otherwise Ziegler suddenly had a bold idea. ?Now you go back to the British to buy EJ200? Even if someone else is willing to sell it, I cant afford to lose face. "Speaking of which, your company''s business volume in China...is so large that you need to set up a special region?" Ziegler gave up on trying to see anything from the partition with his naked eyes, and simply turned around to chat with Wei Li. Thats not true. The Huaxia Region is just a shelf at the moment. ? Dassault Civil Aircraft Department is mainly engaged in business jets and has basically no business overlap with Airbus, so the latter does not need to bluff, but directly denies: "Actually, so far, we have not sold the first aircraft in China. However, after the signing of the agreement last month, the higher-ups are very optimistic about the rapid development of China''s business jet market, so we plan to send a few people over in advance. Establish an office. at the same time. Before letting the European delegation enter the production area to visit, the leaders on the Chinese side had naturally seen it once. However, for the leader who came here in person this time, what he saw in the control room before was the focus, so he just walked around the equipment and took a few glances. At this time, he was already talking to the die forging press and Jiang Zhong. Several core responsible comrades here sat in a conference room together. The workpiece that was just trial-produced should be part of the domestic fuselage of Project 11? This session now belongs to the internal discussion after the ceremony. In theory, it is not a very serious session. It is usually just a casual chat about what we just saw and heard. However, the leaders present this time are of different levels, so we should not be too casual. Yes, Chief. Several people nearby looked at each other, and finally He Ming, who was in charge of the production and manufacturing aspects of Project 11, spoke: "The old models of Su-27 and J-11 used segmented casting and then welding in this part, but now they can be directly formed using the die forging process, which has a great impact on shortening the processing time and reducing the weight of the body structure. benefit." Is this the technology provided by Sukhoi, or... Leaders with technical backgrounds will ask very detailed questions about technology research and development. As soon as this question came up, He Ming immediately sat up straight: It is an improvement plan jointly finalized by us and Russian technicians within the framework of Project No. 11, and both parties share intellectual property rights! For a project that has only been introduced for three years, it is indeed quite rare to achieve this level of success. Therefore, after listening to the report, the chief also seemed very interested: Then this should be regarded as...the first time we have implemented technological feedback to Russia in Project No. 11? Thisstrictly speaking, it doesnt count ?He Ming subconsciously turned his head and glanced at Chang Haonan opposite: Previously, Mr. Chang and the comrades of the Electronics 14th Institute developed an airborne jamming system, which was also a reciprocal technology exchange with Russia in the name of aircraft ancillary equipment. The eyes of several leaders in the front row also turned to the latter. Chang Haonan, whose words suddenly fell on his head, quickly replied: Yes, it is actually the one installed on the JH-7. The Russian side wants to install it on their new tactical bomber platform. "We considered at that time that the potential of the JH-7 platform was really limited, so our military''s dedicated electronic warfare models would sooner or later be transferred to the J-11 series. Now letting Sukhoi try it first will also help us in subsequent research and development. We needed to make reference at that time, so we agreed to exchange this technology for an ion coating technology production line. The fact that the Turbofan 10 prototype was able to be produced so quickly was also due to this production line. "but" Speaking of this, Chang Haonan changed the subject: "This matter is only operated in the name of Project 11 for convenience, but in fact it has little to do with the aircraft itself, so strictly speaking, this aircraft structure upgrade carried out by Mr. He and his team can be regarded as a real aircraft for the first time. ??Today''s gift itself has already attracted him a lot of attention, so there is no need to continue to steal the limelight in this session. Do not eat anything alone. As expected, the chiefs attention returned to He Ming: I heard a report from Comrade Li Liangxin before, saying that this years National Day military parade will have an aerial formation of domestic third-generation fighter jets. Will the aircraft in it use the airframe components made today? This is not the case. He Ming slowly shook his head: We have provided a technical demonstrator aircraft and two first-stage prototype aircraft to the 9910 project. However, in order to ensure the stability of the aircraft, they have been tested for a relatively long time and there are no problems. Although the J-11B prototype is expected to be fully assembled before the National Day, it is a brand-new structure with brand-new power, so it is not easy to go directly to the military parade without enough time for stability testing. One good thing about leaders who understand technology is that they respect objective laws, so they easily accept such explanations. Comrade He Ming just talked about a new impetus. He looked at Chang Haonan again: Comrade Chang Haonan, in more than a month, the Aerospace Power Group Company will be officially established. As the specially appointed chief planner, do you have any specific ideas for the business development of the new group? Hearing this question, He Ming opposite and Lin Jingtang next to him trembled visibly. ??If there werent so many leaders on this occasion, Im afraid they would all have to shout out ?Chang Haonan did say before that he had found a position in the newly established Aviation Development Group. But the position you are talking about directly has the word "general" in it? ? And this is a proper second-level central enterprise, the chief planner, if he is a member of the leadership team... Level is a bit scary. ?However, Chang Haonan''s attention will definitely not be on these two people at this time. The big leader has spoken, and he must take this opportunity to shake out the plan in his mind: After the establishment of the group, of course, the first priority is to finalize the design of several new types of engines, including the Turbofan 10. After all, it is the first battle after the formation of a separate aviation power force. As for the next step, I have mainly arranged two key directions. "The first is to further utilize the training opportunities of the Turbofan 10 project, and allow comrades from various units who have participated in the research and development of the Turbofan 10 to return to their posts and conduct necessary training on some of our country''s existing engines with older technology but large installed capacity. Technology upgrade. "On the other hand, for the Turbofan 10 model itself, the design finalization is by no means the end, but a new starting point. Currently, this model is still subject to several key processes, resulting in relatively limited production capacity, which may even affect In the future, my country will produce two types of third-generation fighter jets, so I personally plan to continue to lead the team to tackle the problems of insufficient production efficiency and yield rate! (End of this chapter) Chapter 734 Got a spot Chapter 734 Got a quota Even after it is spun off from the Aviation Industry Corporation of China, the newly established Aerospace Power Group will be a behemoth with more than six-digit employees. For such a large enterprise, especially a newly established one, a formal development plan that needs to be kept on file can be considered concise and comprehensive if it is not written in 100,000 words. However, the secretary will naturally type out the long speech word by word. As the chief planner, Chang Haonan is mainly responsible for controlling the general direction. After all, in terms of scientific research work, he is still in his most youthful and powerful stage. , it is impossible to really break away from front-line business positions. ??Furthermore, this occasion is just a symposium after all, and it is impossible to really let him read the report for several hours alone. Therefore, Chang Haonan chose to focus on the big and let go of the small, and simply talked about the most critical part. Judging from the chiefs reaction, the effect is indeed pretty good. Okay, very good. ?The other party waved his arms in mid-air, looking very excited: "I remember, about ten years ago, in the late 1980s, I went to inspect the 624 Institute in Fucheng. At that time, Comrade Liu Zhenxiang was the director. I remember clearly that they were solving the inlet flow field distortion of the turbojet 13A engine. serious problem." Then there is a roundabout way to win further support: "However, Chief, our foundation is still relatively weak after all. Generally speaking, the Turbofan 10 is currently in a unique state, including its core engine. Although it is very advanced, it has not been fed back into engines for other uses. " "Currently, the only ones that can reach the technical level of the 1990s are the Haojing Engine Group, which is domestically producing the D436T1 engine used in the C808 passenger aircraft in a form similar to Project 11, and the Jianning Engine Group, which is based on the legal Ahaye 1C Improvements were made to produce the turboshaft 8 engines used in the Z-9 series helicopters, and the rest... are limited improvements to the old models from the 1950s and 1960s. "At that time, our military-technical cooperation with the United States broke down, and we needed to build new aircraft by ourselves. The biggest disadvantage of building aircraft by ourselves was power, so I asked Liu Zhenxiang when we would catch up with the international mainstream. level, the answer he gave me at the time was that it would take about twenty years, that is, by the end of the first decade of the next century, to produce products whose performance reaches the equivalent level of the same era. " Its just that now the world line has been disrupted by the eight-level strong wind he set off, so to outsiders, Liu Zhenxiangs estimate back then seemed much more conservative. Chang Haonan did a little calculation and said that Liu Zhenxiang''s estimate back then was actually quite accurate. ?Such professional terms are nothing to technicians, but as a leader, Chang Haonan was a little surprised to be able to remember them for so many years. The August 3rd Project had an internal slogan of Revenge for the Peace Model, which was also shouted at that time. ? In addition to his background in science and engineering, he probably had something to do with the fact that he had just been cheated on the "Peace Model" project. First of all, you must recognize the achievements you have already achieved: Our little comrade hasnt even officially taken up the post yet, and hes already asking for policies and support from his new employer Because if there had not been such a thing as rebirth, according to the original development trajectory, the Turbofan 10 would have gone through three ups and downs before it was officially mass-produced around 2010 and installed on the second batch of J-11Bs. ??This is a slap in the face. The leaders are all the best among men, so they naturally understand the implication: ?However, when facing questions from leaders, you still need to use some language skills. "The results now appear to be much more optimistic than Comrade Zhenxiang''s prediction... I have seen the target performance of the Turbofan 10 in the report submitted by the Science and Technology Commission before, and it is already comparable to the mainstream international turbofan engines. Compared to that? A happy atmosphere suddenly filled the conference room. In terms of the performance indicators of the turbofan 10 alone, it has indeed reached the level of the third and a half generations of American and Russian engines. It also has greater upgrade potential and has indeed caught up with the first echelon. Although there were still some problems with the stability and failure intervals of the early batches, they were indeed catching up to the qualification level at that time. Chang Haonan changed the topic and started to sell miserably: "So, compared with the United States, Britain, Russia and other pioneering countries in the aviation field, the biggest problem faced by China is that the aviation engine pedigree is not complete enough, especially in terms of large ducted turbofans, turboprops and turboshaft engines, which are almost blank. " The chief looked around and said in a half-joking tone. Sure enough, after a brief pause, the other party continued: After the atmosphere calmed down again, the other party looked at Chang Haonan again: Comrade Haonan, dont worry about this. Since we have approved the independent split of the Aerospace Power Group, we will definitely support your work and provide reasonable conveniences in terms of project establishment, personnel and funding. When you say this, it is equivalent to a promise. Of course, when a leader expresses his position, he must leave three points at the end: "However, don''t be too impatient. It is a good thing for young comrades to be motivated and not satisfied with their immediate results. However, as you said just now, our country''s foundation is weak and there are too many areas that need to be made up for, even if it is No matter how capable you are, it''s impossible for you to catch up with the Premier League and the United States in all aspects in three to five years, so don''t put too much pressure on yourself." Scientific and technological development, or in other words, the development of comprehensive national strength, is not a sprint, but a marathon. As he spoke, the chief straightened his suit jacket and stood up from the sofa. It was obvious that he wanted to summarize the meeting: "It tests whether we can stick to the right direction of development for a long time. In this regard, I have firm confidence in China''s future!" "..." ?After this massive gift event, Chang Haonan stayed in Jiangzhong until the end of May. Even now, the workpieces that need to be produced by this heavy-duty die forging press are far more than the rear bulkhead of the J-11B fuselage. ?According to the plan, the C808 being produced in Shanghai will also start from the second batch and gradually increase the localization rate of core structural parts. And the high-power hydropower unit that first gave him the idea of ??developing a die forging press. Each of them is a project with a small output, but requires special process optimization. ?Jiang Zhongs own R&D department was gradually established after Lin Jingtang joined the project team, and it is slightly inferior in terms of capabilities and experience. ?Although it is impossible to handle everything personally, you can still push as much as you can. ?Before Chang Haonan was about to return to the capital, Yan Yongnian came to him specifically and handed over a bound document. Mr. Chang, this is the progress report of the die forging press project, please take a look. From trial production to formal production, it will take as short as one or two years and as long as three to five years. The life monitoring and automatic compensation system is mainly developed together with the forging press. There is definitely no way to see the effect on a new piece of equipment. However, the successful completion of trial production is the most important project node for the research and development of the die forging press itself. In a sense, this progress report is equivalent to a final report. The subsequent work will also gradually be transferred from the R&D team in charge of Chang Haonan to within Jiangzhong Group. Except for the fact that Lin Jingtang, as an expert in forging technology, will still stay here for a period of time, the main leaders including Yan Yongnian and Chang Haonan will also withdraw one after another. The entire project team will still maintain a paper presence, but most members will be able to turn their attention to other tasks at hand. If nothing particularly outrageous happens, this state will continue until the equipment is officially delivered. ?Chang Haonan stopped packing his things and took the thick report. This kind of thing naturally cannot be something that has just started to be improvised recently, but has been written as it goes during the development process. Therefore, Chang Haonan has actually checked most of the content. ??The main thing added this time is the summary in the last part. ?Especially because this National Day gift was extremely successful, the leader even issued the slogan "Learn from Jiangzhong Group and the military industry scientific research front" at the end, which is definitely going to be used at the end. By the way, Professor Yan. Chang Haonan said and sat back on the chair: Before the director left that day, he asked me if there were any other problems that needed to be solved by the comrades in the project team. I mentioned in a subtle way that I hoped to go to the capital to watch the 50th National Day ceremony in person. "Um?" Hearing this, Yan Yongnian suddenly became energetic: "Then what?" Of course it passed. Chang Haonan replied with a smile: This morning the National Day 50th Anniversary Celebration Office contacted me and said that they could apply for six places among the project team members, but I took a look and they were all in slightly remote viewing areas. For Yan Yongnian, being able to go to the scene was already very satisfying. He couldn''t be more picky. He immediately stood up and held Chang Haonan''s hand with both hands: "It doesn''t matter if it''s remote, as long as people can go there, thank you very much, Mr. Chang..." Its okay, its not a big deal. ?Chang Haonan waved his hands all over the ground: Besides, I have poached two of Professor Yans most popular disciples before, so this spot can be regarded as a gift in return (End of this chapter) Chapter 735 System level, LV3! Chapter 735 System level, LV3! On the morning of Chang Haonan''s return to the capital, Jiang Zhong arranged a small ceremony. Certainly not a farewell ceremony. ?Although the die forging press itself will most likely not have any problems, Chang Haonan will inevitably come to deal with them again when he takes over major projects. What''s more, Jiang Zhong is now a company managed by the Equipment Industry Department. Everyone is considered a family and there is nothing to give away. It was the unveiling ceremony of the bust of Academician Shen Hong, as Chang Haonan and Yan Yongnian said before. Comparing to common bronze or stone statues, the body of this sculpture called "Cast" is made of titanium-aluminum alloy, and the metal used is re-cast from the waste materials in the production of No. 0 workpieces. The bust stands on a marble base about one person tall, carved in the shape of a forging press, facing the direction of the production workshop. ?The front of the base is engraved with Academician Shen Hongs name, year of birth and death, and major life events. As the countdown by the host of the ceremony ended, Chang Haonan and Yan Yongnian, one on the left and one on the right, personally unveiled the red cloth covering it. Yan Yongnians eyes never moved away from the statue: But if I think about it carefully, I dont quite understand what is the difference between a person who has already graduated with a PhD at the age of 24, and a person who has clearly taken the lead in completing several major national projects but has not yet graduated with a PhD. Even more outrageous By the way, Mr. Chang. Chang Haonan was stunned for a moment and had no idea what he meant: What would I do with two copies of this? Amidst the warm applause, Chang Haonan, who was standing in the middle of the podium, said to Yan Yongnian next to him. Anyway, we from the old Ministry of Machinery Industry still have to thank you for this matter. He thought for a moment and finally shook his head: Forget it, this one is too thick. The review team will probably have to look at it for a whole day to finish it... I just graduated with a Ph.D., I can just pick out a few things from it. ?Chang Haonan put down his palms that were already a little red: I just followed the trend of the times in advance. Although I did do some work, the implementation of the entire project cannot be regarded as my personal credit. The Science and Technology Commission, the Equipment Industry Department, and the old Ministry of Machinery Industry all played a certain role in it. This is our collective victory! Heavy-duty hydraulic presses are indispensable equipment for the production of large forgings. With the development of our countrys industrial capabilities and national economy, the demand in this area will emerge sooner or later. Yan Yongnian opened his mouth, as if he wanted to say something more, but in the end he didn''t say anything. He just raised his head slightly and blinked. "Um?" Although Academician Shen was not able to see the day when the heavy-duty forging press was put into production, this can be regarded as settling a worry for his old man. Yan Yongnian was also stunned: "Of course it will be part of the presentation of results during your graduation defense... If I remember correctly, you should be graduating with a Ph.D. soon, right?" ?After a while, Yan Yongnian finally recovered whether he was feeling emotional or sad: Chang Haonan suddenly realized: Is this... "ah" When he said this, he felt a little outrageous. Do you need me to prepare another project progress report for you? "Without this project, I''m afraid not only Academician Shen, but also some of us would have regretted it for the rest of our lives..." Even though Yan Yongnian has obtained his doctorate many years ago, as a professor, he still has to participate in student defense work every year. When I heard Chang Haonans answer, I didnt know how to proceed... ?But if you think about it carefully, there doesn''t seem to be anything wrong with it. ??The things that Chang Haonan has done in the past two years, if broken down, would be enough for dozens of Ph.D.s to graduate. Its really just a matter of time. Thinking of this, Yan Yongnian suddenly became curious: Speaking of which, Mr. Chang, what is the topic of your PhD graduation? After all, the fields that the other party is involved in are too broad. From fluid mechanics to structural mechanics, to surface physics, control theory, electronic information engineering, materials science All of them have left traces that are commendable. I just dont know which field can be so lucky to be chosen as the research direction for Ph.D. graduation by Mr. Chang. Hmm"Space-time separation method for solving nonlinear partial differential equations"." ?For a doctoral thesis, this title is even a bit short. ?However, when it comes to things like essays, the fewer the words, the greater the problem. This should be considered...a paper in the field of applied mathematics? ?Yan Yongnian had already thought of many possibilities when he just asked the question. But I didnt expect it to be like this. After all, fluid mechanics and control theory can always be directly connected with aircraft design. But applied mathematics The relationship is always more distant. In fact, if you leave it 20 years later, it will be normal for the professional name to have no relationship with the research content. ?However, at the turn of the century, the interdisciplinary research model had not yet emerged. Therefore, as a PhD student in aircraft design, Chang Haonan wrote a mathematics thesis as the content of his graduation defense, which is indeed a bit shocking. If nothing else, someone who writes this kind of paper should at least be awarded the title of Doctor of Science. The calculation example part will also involve some application-level content, but in general it is closer to mathematics. Chang Haonan just nodded as usual: Ph.D. only means that a person has the ability to provide original theories or application results, but it does not mean that it must be completely related to the major. "Furthermore, this algorithm theory was gradually improved by me in the process of researching and optimizing the TORC Multiphysics software. Now almost the entire Chinese aviation industry system is using this software to do numerical simulations of aerodynamics and structural mechanics. I have to say If so, there is still some connection..." Yan Yongnian took a deep breath and nodded slowly: To be honest, Im kind of looking forward to it. After passing the defense, I will definitely read your article if I have the opportunity. ?However, Chang Haonan smiled and shook his head: My defense and thesis will definitely not be made public immediately, including scientific research results, which are also given in the form of national defense reports and cannot be seen outside..." "It really is" ?That afternoon, Chang Haonan finally ended his more than one month-long mission in Jiangcheng and rushed back to the capital with a series of results. Although Chang Haonan''s graduation defense was held separately, in order to make up for the degree awarding time, it was still scheduled for early June like others. Therefore, after returning to the capital, his first thing was not to go back to school, but to submit the project A progress report was submitted to the Science and Technology Committee. I have read the report on the day the chief went to Jiangtang for inspection. He spoke very highly of you, or in other words, you. Ding Gaoheng sat behind his desk, leisurely flipping through the report page by page, and said in a relaxed tone: Although there is no direct call to learn from you personally, that statement is actually pretty much the same. Its a good thing they didnt push me out. ?Chang Haonan is now at home in Ding Gaohengs office, minding his own business and sitting on the sofa next to him: I have a lot of hats on my head now. After graduation, I will also hold a teaching position. Having less attention that has nothing to do with business will allow me to save more energy. Its good to have this kind of mentality. Ding Gaoheng''s hand turned the pages gradually faster. In fact, the content of the report has already been reviewed by an expert group in Jiangcheng. Today is just a formality, asking Chang Haonan, the project leader, and Ding Gaoheng, the top leader of the Science and Technology Commission, to sign it and keep it on file. ?Hence, it didnt take long for him to sign his name directly next to Chang Haonans signature on the last page. ?At this moment, Chang Haonan, who was resting on the sofa with his eyes closed, suddenly felt a heat wave surge in his brain, like a CPU that suddenly started working at a high frequency. Fortunately, this feeling was fleeting, otherwise he would even wonder whether he needed additional physical means to cool down... After everything returned to normal, the system panel that he had not seen for a long time reappeared in his mind: Scientific Research Points: 9000 Theoretical level: LV3 (20000/100000) Engineering experience: LV3 (50000/100000) Management ability: LV3 (75000/100000) Comprehensive ability: LV3 Projects in progress: 1 Projects that can be carried out: 3 Obviously, in the system''s judgment, at this step, the entire die forging press project is considered completed. Maybe its because when setting up the project, Chang Haonans ideas were relatively rough, and the automatic error compensation algorithm that required long-term verification was only added later. The result was a hit and miss, saving several years of waiting. The completion of such an influential project will naturally give a huge amount of three experiences. As a result, the system was upgraded to level 3. Based on the last upgrade of the system from level 1 to level 2, the most obvious benefit of upgrading the system is that it adds another project that can be carried out in parallel. However, the number of parallel tasks from 1 to 2 is a qualitative change, but from 2 to 3 it is not so important. After all, even if there is a system, it is unlikely that Chang Haonan can really take care of three highly complex projects at the same time. The body cannot bear it. Whats more important is the improvement in the upper limit of his personal abilities after leveling up This means that many projects that were just ideas but could not be implemented in the past are likely to have a chance to be implemented. (End of this chapter) Chapter 736 Challenge Step 15 of the NS Equation Chapter 736 Challenging Step 1.5 of the N-S Equation After signing, Ding Gaoheng put the pen back into the pen holder. When he raised his head again, he only saw Chang Haonan leaning on the sofa, his eyes looking at the ceiling distractedly, as if he was in a state of wandering mind. ?Looking at this posture, he seemed to be thinking, so he was not in a hurry, just pushed the report to the corner of his desk, and then started to deal with other official duties. ?So, such a strange scene appeared in the office of the director of the Science and Technology Commission. Ding Gaoheng was crouching on the desk writing furiously, getting up from time to time to refill himself a glass of water. On the sofa not far away, there was a young man sitting with his eyes looking at the sky... ?That kind of relaxed state, if I didn''t know it, I would think there was some special relationship between the two people... Fortunately, this afternoon was unusually peaceful. It was not until he was about to get off work that Chang Haonan broke away from his thoughts. Xiao Chang? Otherwise, Im afraid its going to be Im on fire!. The air conditioner is naturally turned on in the office, but after all, Ding Gaoheng is old and not as strong as a young man, so it is impossible to turn on the lowest temperature and blow the air. Wellits about the graduation thesis. You still have to worry about your graduation thesis? Seeing that he finally moved, Ding Gaoheng also breathed a sigh of relief. ?Chang Haonan sat up straight, and at the same time, almost subconsciously, he raised his hand and stroked his forehead. Oh...Director Ding...just suddenly had some inspiration and was thinking more clearly..." Fortunately, the system should have the ability to automatically adjust. Except for the first moment, the "computing power" has been turned up to a level that Chang Haonan can accept. ?But this also gave Chang Haonan a new idea Ding Gaoheng returned to his seat and asked casually while holding the tea cup and blowing gently. ??If he really soaked in a bathtub of ice cubes, would his thinking efficiency be further improved... What were you thinking about just now, so lost in thought? ?Chang Haonan said a simple polite word, then pulled off a few pieces of paper, folded them together and began to wipe the sweat. Ding Gaoheng obviously saw the sweat on Chang Haonan''s face. He stood up and put a roll of paper on the coffee table: Wipe your sweat, the weather is already a bit hot at the end of May... Ding Gaoheng on the other side stopped fiddling with the lid of the cup and raised his head in shock: Hence, the temperature in the room was already a bit high for Chang Haonan. Coupled with the high load of thinking just now, it did put a lot of load on the body temperature regulation mechanism. Thank you, Director Ding. I''m really sweating now. turned out to be covered in sweat. "ah?" "I saw it, so I didn''t call you just now because I was afraid of disturbing your train of thought." In his opinion, Chang Haonan is now like a big father to Jinghang. It is too late to be a Bodhisattva, so how could he interfere with graduation matters. Furthermore, given the current situation, if we target Chang Haonan, we are targeting him, Ding Gaoheng. Going even further, we are targeting... There should be no one who is so short-sighted. Not the graduation thesis itself. Chang Haonan shook his head and quickly explained: I just suddenly came up with some extended research from the content of my paper, about using the spatial averaging principle to modify the N-S equation..." In fact, Ding Gaoheng just asked casually out of curiosity at first. After all, since the two people have known each other for so long, he has never seen the other person thinking for so long. There is no expectation of an in-depth discussion on this topic. But the moment Chang Haonan mentioned the N-S equation in his answer, he immediately became interested: Have you thought of a new numerical solution method? For anyone who studies fluids in any field, the N-S equation is a mountain that cannot be bypassed. Since current mathematical tools cannot find strict analytical solutions, how to obtain numerical solutions to specific problems more accurately and efficiently has become the focus of applied mathematicians and physicists from all over the world. It can be said that the TORC Multiphysics software has achieved an era-leading lead in the field of fluid calculations, largely due to the breakthroughs made by Chang Haonan in the numerical solution level at that time. Although the mathematical theory part is a public achievement, at the application level, even if others compare it with the source code, it will be difficult for others to keep up with the pace of optimization and iteration of the Torch Group itself. What''s more, even the software of the professional enhanced version is not public, let alone the source code. And if it happens again at this time... Ding Gaoheng didnt dare to think about what would happen. ?However, Chang Haonans response was to shake his head: "not completely" ?This made Ding Gaoheng''s excitement subside a little. ?But think about it, a breakthrough of that level can only happen once in a few years or even more than ten years, which is already extraordinary. ??Moreover, even if it is only further modified at the level of the original algorithm, the calculation efficiency can be significantly improved... I believe that the inertial manifold of the two-dimensional N-S equation exists universally. ?Chang Haonan''s second sentence choked back the words that were already on the tip of Ding Gaoheng''s mouth. "What?" The latters mind couldnt keep up for a while. The inertial manifold of the two-dimensional N-S equation may exist universally. ?Chang Haonan repeated it. But it is obvious that Ding Gaoheng did not understand the Chinese characters clearly, but he heard each word, but did not understand the meaning of the connection. ?So he had to explain: Simply put, because there is an affinity relationship between fast variables and slow variables, directly ignoring the fast variables and retaining the slow variables will lead to the loss of a lot of dynamic information in the process of dimensionality reduction of the nonlinear partial differential equation system. . Including my current research, the function of all nonlinear dimensionality reduction methods is to improve the modeling accuracy without increasing the dimensionality of the reduced system, to compensate for part of the lost information. " "The inertial manifold is one of them, but because in the inertial manifold, the ignored fast variables can be represented by slow variables, the calculation accuracy and efficiency are much higher than the traditional methods in the past... But for most Nonlinear partial differential equations, including N-S equations of course, are difficult to find corresponding inertial manifolds..." "So we, uh...that is, the TORC Multiphysics software currently uses two methods. One is to assume that the fast variable is in a pseudo-stable state, so that the stable flow pattern can easily obtain an approximate inertial flow pattern by ignoring the dynamic information of the fast variable; the second is to consider By deleting the dynamic information lost by deleting the fast variables, and using the Euler method to calculate the integral of the deleted fast variables in a short time interval, an approximate inertia manifold can still be obtained..." However, both methods essentially superimpose approximation on the basis of approximation, so although the results are indeed better than the traditional method, they have returned to the category of pure application and are not very helpful in advancing theoretical research... " ? Ding Gaoheng is not a mathematician, not to mention what Chang Haonan said is not even applied mathematics, but is already a bit towards the theoretical part, so after listening to it, he just felt... This simply speaking is not simple. ?However, although I dont fully understand the specific content, the general meaning is still understandable: Soyou want toobtain the global solution of the N-S equation? ?This idea is a bit too unrestrained ??If the N-S equation is completely cracked, it will basically be equivalent to reshaping the entire aerospace industry from its roots. What kind of wind tunnel, what kind of aerodynamic verification machine... Not necessary at all. Just put it into prototype and then put it into production. Ah...no, no, no, its not that exaggerated. Chang Haonan quickly waved his hand: Although in terms of direction, it can indeed be said that it has taken a step towards solving the N-S equation, but the distance from truly obtaining an analytical solution can only be regarded as the first step in the long march of thousands of miles..." Speaking of this, he hesitated again: Its not just the first step. After all, its a step forward on the basis of pure numerical solution. But the second step is a bit...strictly speaking, its step 1.5..." (End of this chapter) Chapter 737 Graduation defense with outrageous lineup Chapter 737 Graduation defense with outrageous lineup ?Chang Haonans defense meeting was not arranged within Beijing Hang University. Instead, we directly found a conference room in Torch Group for the meeting. Because what is going to happen in a while is far more than just a thesis defense. ?Performing a doctoral defense for the general manager of another company on someone else''s territory is probably relatively rare even in the degree-granting process around the world. ?But compared with Chang Haonan''s own situation, it seems not that rare... Xiao Chang, long time no see. ??Tang Lintian, who has been promoted to acting principal at a speed close to the triple jump, stopped Chang Haonan at the door of the building: After today, I wont have the chance to call you that again. Principal Tang, I just graduated, there are still many opportunities to meet in the future... ?Chang Haonan turned his head and saw three other people behind him. ?Du Yishan and Liu Zhenxiang are naturally among them. But the person standing at the end is an unfamiliar face. He should be a teacher from a foreign school invited here according to the requirements of the review mechanism. As for Fang Zhen, who was a review expert during Chang Haonans undergraduate defense... Considering that he currently works in the Torch Group and is considered a subordinate of the former, according to the principle of avoidance, it is impossible to participate in any case. Perhaps seeing Chang Haonans slightly confused look, Du Yishan motioned to everyone to make room for that person, and then introduced: Xiao Chang, this is Professor Yuan Xiangya, deputy dean of the Institute of Mathematics and Systems Science of the Chinese Academy of Sciences. Hearing this name, Chang Haonan suddenly understood. ??Although the other party''s face was relatively unfamiliar, Chang Haonan had heard of Yuan Xiangya''s name. In fact, if you want to study the theory of nonlinear programming algorithms, it is basically impossible to avoid him. In 1985, 25-year-old Yuan Xiangya jointly proved the "1/2 conjecture" of the truncated conjugate gradient method while studying for his PhD, which was considered one of the important achievements in nonlinear programming algorithm theory throughout the 1980s. In addition, he also systematically proposed a series of new algorithms using a combination of the trust region method and the traditional line search method to solve nonlinear planning problems. Some people have even begun to call this series of results "Yuan''s Lemma". Although this term has not yet been widely accepted, judging from the current momentum, it will be a matter of time. Although a lemma in a non-explicit field of science is definitely not as influential and status as those famous theorems, there is no doubt that being able to put one''s name on it is definitely considered to be a leader in the field of applied mathematics. peak. In short, he is also a player who is comparable to cheating. ?Chang Haonan took two steps forward and shook hands with the other party: Professor Yuan, its a great honor for you to come and participate in my graduation defense. Your research methods and results have inspired me a lot during my previous research. Yuan Xiangya is less than forty years old this year. Standing among several people, he is closer to Chang Haonan''s age. Learn from each other, learn from each other. ?The other party smiled modestly: TORCHMultiphysics software, and of course the algorithm behind the software, can be said to be the greatest achievement in the field of computational mathematics at the application level in recent years. If nothing else, those of us who are engaged in applied mathematics can speak very forcefully when we go to meetings now..." Although this statement is a bit exaggerated, the atmosphere in the corridor became relaxed because of this. Actually, if your defense is held in public, I will definitely ask half of my students to come and participate. Not all? Du Yishan, who was standing next to him, interrupted and asked jokingly. But Yuan Xiangya shook his head very solemnly: Not all, because the other half wont understand even if they come over, so theres no need to waste time. Its better to leave the position to those who need it more ?After saying this, even Chang Haonan himself almost laughed out loud. But considering that I am still a student today, I finally held it back. After some pleasantries, Chang Haonan was ready to take everyone upstairs. It was only then that he suddenly realized that there were only four people here. Teacher Du, the graduation review should have at least five review members. Are we... still missing one? Dont worry, its almost there. Du Yishan raised his wrist and looked at his watch: The old man is older, so he was picked up by a special car, so he didnt come with us. Older You must know that Du Yishan is already 70 years old. The only people he can say are old are those from the early founding generation of the People''s Republic of China... Just when he started to guess who the visitor might be, he saw a minibus slowly driving into the company compound from the direction of the gate, then making a half circle and driving straight from the side vehicle ramp to where he was waiting. in front of several people. The car door opened, and naturally the first ones to get out were a few staff members. But soon, a gray-haired old man wearing a Chinese tunic suit appeared at the door of the car. ? ?Chang Haonan was stunned for a moment. No introduction is needed at all. He has seen it countless times on television and in the media. Mr. Qian ?Several people rushed to greet him. ?In front of this master of aerodynamics in applied mechanics and the founder of engineering cybernetics, no matter whether he is in his seventies, thirty or twenty, he is still a junior. After shaking hands one by one, Mr. Qian finally came to Chang Haonan: "A few years ago, I heard the junior students at the Academy of Sciences talking about you, and this time I saw your true form." Although he is already 90 years old, Mr. Qian still speaks and thinks relatively smoothly, and his physique does not appear too old. "Xiao Chang, Mr. Qian took the initiative to apply to be the chairman of your defense committee this time." After Mr. Qian finished speaking, Du Yishan added next to him. Thank you Mr. Qian! ?In this situation, Chang Haonan really has nothing else to say: Its a bit windy outside, lets go in and chat first In fact, the composition of Chang Haonans defense committee is already very obvious. The so-called review mainly examines whether the research results that match the requirements of a "doctoral degree" have been produced during the degree study. But this is for ordinary people. ??Chan Haonans achievements during his Ph.D. studies have been placed in factories or flown to the sky, and there is no need to express them in papers. ?Therefore, the focus of this defense committee is not on the defense itself, but on the fact that the members must have sufficient influence Not everyone is qualified to confer a degree to Chang Haonan. ??If an ordinary doctoral supervisor came and signed Chang Haonan''s review opinion, wouldn''t his hands shake? Besides, the layout is not enough. As for the current lineup, Du Yishan and Qian Lao, two academicians of both academies, Liu Zhenxiang, the first academician in the aviation power industry, Tang Lintian, the president of Beijing Airlines, who is probably not far away from being an academician, and one of the top young scholars in the field of applied mathematics in China, who is also not far away from being an academician. Yuan Xiangya, who is barely qualified... It is basically the strongest group that the Chinese academic community can pull out. Half an hour later, Chang Haonan, dressed in formal attire, walked behind the podium. Other staff have been excluded from this meeting room. Therefore, there were only Chang Haonan standing, five big guys sitting, and a trembling defense secretary in the room. ??If it were anyone else, facing such a luxurious lineup, I am afraid that he might not even be able to stand firm. ?However, Chang Haonan has seen a lot after all. Although he was a little stressed when facing Mr. Qian at first, he quickly adjusted his mood. Thank you all teachers for coming today and listening to my report on some of the results I have achieved during the two years of my Ph.D. studies. "The content of my speech will be divided into two parts. One is a new algorithm for solving nonlinear partial differential equations using the space-time separation method. The other is the calculation tool TORCH Multiphysics that is expanded based on this algorithm and the use of this tool. Calculation examples to solve practical problems. Every teacher should have read and used the content of my paper, as well as the TORC Multiphysics software itself. Therefore, I will omit some less important steps to save space and time..." "First of all, I need to introduce a principal component analysis method for nonlinear autonomous dynamic systems..." In the 1990s, laser pointers had not yet been widely used in display and teaching fields, so Chang Haonan still held a traditional telescopic pointer in his hand and walked around the curtain as he introduced: "Suppose there is a high-dimensional nonlinear ordinary differential equation autonomous system x(t)=f(x(t), t), where the state x(t)=[x1(t), x2(t)xn(t)] ^T, this equation represents the dynamic behavior of state x(t) in n-dimensional state space without system input..." From an academic level, the algorithm construction in the first one-third of the article is actually the core content, because it is the cornerstone of all subsequent work. As a listener, this part of the content process also requires the most energy. ??If this is a normal review, then if you want to find fault, it will most likely be in this part. But things are different today. TORCHMultiphysics'' powerful performance has been recognized by peers around the world. ??If you find any problems with the algorithm constructed by Chang Haonan... ?Then its best to look for your own problems first In fact, Yuan Xiangya, who is closest to this research field, did not even find anything to ask questions about. Although Chang Haonan simplified many complicated steps, he gave full and detailed explanations of all key points that may cause doubts. After listening to this part, his first feeling was The half of students mentioned before is still too high. My own students know that there can be no more than three students who are able to follow us here without any problems. Chang Haonan on the stage glanced at the five big guys below from the corner of his eye. Obviously, for Tang Lintian and Liu Zhenxiang, whose research directions are more focused on engineering applications, this part of the content is already a bit too much. ?Du Yishan and Qian Lao have sufficient theoretical foundation, but due to their advanced age, they were fine at the beginning, but now that 40 minutes have passed, their energy is a bit lacking. Happily, judging from Yuan Xiangya''s performance, he has completely kept up with the idea. "Based on this algorithm, we have developed a new set of multi-physics coupling calculation tools, namely TORC Multiphysics, for strongly coupled multi-physics problems. So far, I have been working on the turbofan 10 aero-engine project. This tool has been used in the 75,000-ton heavy-duty die forging press project, and in the process of improving the boundary layer-free supersonic inlet for Project No. 10..." The last two-thirds of the article is more of a results report than a paper. Even a brief explanation took a full hour and a half. There was also a break in the middle. In fact, even Chang Haonan himself realized that he had done so many things in the past few years since his rebirth when he was doing this summary. Let alone others. Therefore, when he said "My report is complete, please criticize and correct me", the following six people could not even react immediately. ?It wasnt until he returned to the podium and turned to the last page of the PPT that the applause rang out in unison. This was the thinnest applause Chang Haonan had ever heard, but it was the heaviest. The audience is composed of old, middle-aged and young scientific researchers since the founding of the People''s Republic of China. On the stage, there is... no, it should be said that it is a rising star of the future. The fuel and fire are passed down from generation to generation, endlessly. (End of this chapter) Chapter 738 Surprise from my alma mater Chapter 738 A surprise from his alma mater The report is over, followed naturally by the question and answer session. but There is nothing to ask. At least this is true in terms of the content of the paper. As for the project... Yuan Xiangya doesnt understand it at all. The other three people also had nothing to ask. Du Yishan has left the front line. Liu Zhenxiangs understanding of the situation at the aviation development side is similar to that of Chang Haonan. After returning to China, Mr. Qian is mainly responsible for aerospace and missiles, which is not business-related. ??However, the defense record needs to be kept together with the thesis. If the question and answer session is completely empty, it will not look good. Therefore, it was Yuan Xiangya who finally asked the universal question: It can be seen that your research has achieved fruitful results, and I think you will continue to follow the path of scientific research in the future. So, can you tell me specifically about the next research direction? In fact, generally speaking, a serious thesis defense will include a "research prospects" section at the end. But because Chang Haonan turned the second half of the content directly into a project report, and the report was on three projects that had little connection with each other, this section was skipped. Next step...I plan to study the application of inertial manifolds in dissipative partial differential equations, which naturally also includes the N-S equation, and, if possible, I can rigorously prove its existence from a mathematical perspective..." ?Chang Haonan restated what he had said to Ding Gaoheng before. ?One good thing about engineering is that as long as I find a theorem to be true empirically, I can continue to use it. Even if it is falsified in the future, you can add a correction and continue to use it. But if you want to make a breakthrough at the theoretical level, you cannot stay at the level of "I am thinking and establishing". Fortunately, these two things can be advanced at the same time without interfering with each other. Yuan Xiangya originally just asked a random question to fill in the questions. After getting the answer, he just nodded and said no more. Not even necessarily taken seriously Research and prospecting are basically just writing and playing. As long as it is theoretically possible, it can be considered reasonable. ?In past student defenses, Yuan Xiangya often saw students writing in their prospects that they hoped to prove Goldbach''s conjecture or Fermat''s last theorem. ?After confirming that the defense secretary had completed the recording, Mr. Qian, the chairman of the defense committee, announced that the next step would be to enter the expert review phase, which required Chang Haonan himself to recuse himself. In fact, by this time, any doctoral student, let alone Chang Haonan, must be stable. If there is really a problem, we can''t get to this step at all. Chang Haonan only waited in the corridor for about five minutes before he saw the door being opened a crack. The defense secretary poked his head out and signaled that he could go in. ?At the conference table, the five members of the review committee were sitting upright, and even Du Yishan, who had been smiling just now, tensed up. Reading out the review results, even if there is no suspense, is still a serious matter after all. After all, although the organizational form is relatively casual, the decision of the review committee is actually legally binding. After seeing Chang Haonan walk through the door, Mr. Qian stood up with some difficulty, holding the handrail with one hand. Liu Zhenxiang and Du Yishan who were next to him quickly gave him a hand. ?Chang Haonan also quickly returned to stand in front of his seat, putting on a solemn expression. Mr. Qians voice was slow but firm: "The student conducted his graduation project on the topic of ''Space-time Separation Method for Solving Nonlinear Partial Differential Equations''. He is able to skillfully apply the theories and professional knowledge he has learned. His innovation and workload meet the requirements for doctoral training... and he shows a strong ability to work independently. Capability, the designed TORCMultiphysics software has been proven and has extremely high application and commercial value..." "The content plan of the paper is correct, the analysis is reasonable and sufficient, the layers are clear, the text and sentences are smooth, the format is standardized, the thinking is clear and the expression is fluent during the defense process, and can correctly answer all the questions raised by the defense committee. The defense committee believes that the student has a Ph.D. level, unanimously agreed to pass the students graduation thesis defense, and recommended that the student be awarded a doctorate in engineering! Even though Chang Haonan knew in his heart that he would definitely pass the defense, he still breathed a sigh of relief when he heard the decision to award the degree.?????Its not that Im nervous or surprised. Mainly, there is a sense of smoothness that one thing has finally settled. ?Furthermore, he also understood a little bit why Mr. Qian should be appointed as the chairman of the defense committee ??Although Du Yishan said before that it was the other party''s request, the fact that Mr. Qian knew about it meant that someone must have specifically mentioned the matter that he was about to defend. ??If it were another person, it would be really hard to pronounce the sentence "unanimously approved of the student''s graduation thesis defense"... Dr. Chang, congratulations. ? Mr. Qian handed the decision letter signed by all members of the defense committee to Chang Haonan, and then took the initiative to extend his hand to the latter. Thank you again Mr. Qian. The two hands were clasped together. ??Although Chang Haonan has been called Chang Bo since he started studying for a Ph.D., strictly speaking, it can only be regarded as a joke or a compliment. After today, this title will become real. No need to thank me. Mr. Qian replied cheerfully: You deserve a doctorate degree! Lets take a photo together. Today is a day worth remembering. Liu Zhenxiang lowered his head and took out a point-and-shoot camera from somewhere. He was obviously prepared. ??The defense secretary who had been sitting next to him quickly took the camera in his hand and walked to the other side of the room to take pictures. You come over and join us. The defense is over. If you want to take a photo, you can ask the outside staff to come over. ?Du Yishan turned off the projector and waved to the defense secretary who was holding up the camera to take pictures. "ah?" The latter raised his head and looked at the people here with eyes that were confused at first, then shocked, and finally turned into ecstasy: I...really went there? The tone was obviously a little flattered The defense secretary is actually not a secretary, but a member of the committee responsible for recording, and also has the title of professor. ?However, in today''s situation, a professor title is indeed not enough. Normally, it would be a great fortune to be able to take a photo with any of the people in front of me, let alone six of them at the same time. The seven of us were killing each other in the Chinese academic world.jpg You are also a member of the defense committee, why cant you come? Lao Qian finally made the decision and invited the staff who came with him from outside. In this way, there are 7 people taking part in the group photo. Lao Qian patted Chang Haonan on the shoulder and motioned for the two of them to change the order: Today is your degree conferring ceremony. You are the protagonist, and according to the rules, you have to stand in the middle. Chang Haonan knew that Mr. Qian''s legs and feet were not very good and he could not stand for too long, so he was not suitable to get too entangled in such minutiae, so he followed the other party''s wishes and moved to a position among the seven people. With the sound of the shutter, a photo that can be recorded in the history of Chinese scientific research was taken. After the photo session ended and everyone returned to their seats, Tang Lintian, who had not spoken much before, stood up again and took out a folder from his briefcase. ?Seeing this posture, Chang Haonan knew that it must have something to do with him, so he didn''t sit down directly, but waited for the other party to speak. In addition, after discussion by the school leadership team and reported to the Ministry of Labor and Social Security for approval, in view of Comrade Chang Haonans significant achievements in numerical calculations, fluid mechanics and structural mechanics, Beijing University of Aeronautics and Astronautics decided to appoint Dr. Chang Haonan as a special Director of the Compressor Research Center of our school, director of the school-level computing center, rated as a second-level professor! After reading, Tang Lintian closed the folder again and handed it to Chang Haonan: The formal letter of appointment and contract will be issued together with your degree certificate in a few days. Congratulations, Professor Chang. (End of this chapter) Chapter 739 Torch Lab Chapter 739 Torch Laboratory At this point, Chang Haonan suddenly remembered that Tang Lintian had said something like "This may be the last time I call you that" before the defense began. So I was waiting here... For him, this is definitely a big surprise. Chang Haonan had already made the decision to stay at the school to teach. As for the titles of the directors, it was just a formal transfer of the positions he had held long ago. But in this era, there are not yet a bunch of labels such as "outstanding young people" in later generations, and the path specifically for young faculty members, including first being appointed as a researcher and then being promoted or promoted, does not yet exist. Therefore, it was indeed beyond his expectation to be directly promoted to professor, or even to second-level professor, in one step. ? ? The X-level professors in 1999 were still classified according to the classification method established in 1956. In principle, they were only linked to salary and remuneration. They were not completely equivalent to the 13-level grading system for faculty and staff that started in 2007. ?However, at the top level of professors, the standards are not much different. First-level professors are basically academicians/faculty members, with very few exceptions. As for the second-level professor, if you have to say... Approximately equivalent to "half-step academician". Yuan Xiangya, who is in the defense committee, is currently at this stage. Basically, you have half-stepped into the academician realm. As long as there are no major problems and you live long enough, when a position becomes vacant, you can naturally be elected as an academician. ? And Chang Haonan reached the same position at the age of only 24, and there is no doubt that he has an absolute advantage in terms of age... In short, the shock brought by this wave is much greater than before. After all, it was just a doctorate degree, and basically everyone present had it. Chang Haonan was just younger when he got his degree. But the second-level professor ?Except for a few people who knew about it in advance, including Chang Haonan, the defense secretary, and the staff who came in later, all fell silent. Especially the defense secretary. He has worked diligently for almost twenty years and is now a third-level professor... Suddenly became the lowest point in terms of professional title. It is certainly unrealistic to say that there is no envy, jealousy or hatred. ?However, anyone with a little bit of brains knows that this situation is really difficult to deal with... Congratulations to Professor Chang. "Congratulations" ??The defense secretary, who had adjusted her mentality, also came over and shook hands with Chang Haonan: Professor Chang...should be regarded as the youngest professor in history, right? Not really, not really... ?Chang Haonan quickly raised his hand and pressed it down, and replied at the same time: As far as I know, Charles Feiffman graduated with a PhD at the age of 20 and was hired as a professor at the University of Chicago at the age of 22. In comparison, I still have some room for improvement... ??The defense secretary is not a math major, so he doesnt know much about Charles Feiffman. Therefore, after hearing this answer, he couldnt tell whether Chang Haonan was modest or superior. But no matter what, what the other party said about having a nose and eyes must be true, so he then changed his words: At least in China, you should be considered the youngest... Anyway, congratulations "OK, thanks." ?Amid bursts of joy, Tang Lintian, who had not spoken since the announcement of Chang Haonan''s appointment, left his seat and came to Chang Haonan''s side. The conference room suddenly became quiet. ?Most peoples eyes were focused on Tang Lintian. ?There are seven points of curiosity and three points of expectation in his eyes The news just now is exciting enough, but looking at this situation, it seems that there is even bigger news? Ahem ??Although the moment he stood up had already achieved a chilling effect, Tang Lintian still coughed twice according to the original plan: "The following news needs to be announced by me, Xiao...er, Professor Chang." After the words fell, Chang Haonan stood up immediately. In fact, this is the reason why his defense meeting was held at Torch Group. After a slight pause, Chang Haonan continued what Tang Lintian said: "Starting from the second half of 1999, Torch Group will cooperate with Beijing University of Aeronautics and Astronautics to establish a joint school-enterprise laboratory specializing in the research, development and exploration of cutting-edge technologies." ??While most people who were previously unaware were still digesting the news, Tang Lintian continued: "The laboratory is directly led by Professor Chang Haonan, and in addition to cutting-edge technology research, the laboratory will also be responsible for exploring new paths for the integration of industry, academia and research, and building a ''lead by leading enterprises, supported by universities and colleges, and mutual collaboration between various innovation entities''" An innovative consortium, forming a ''scientist + engineer'' team, breaking the simple cooperation model of ''Party A and Party B, one project, one contract, one fund''..." As the principal, Tang Lintians industry slang is indeed very smooth. He almost doesnt need to change it. He can write it down as it is and send it out as a press release. ?However, there is still some useful information. To put it simply, Beijing Hang University only conducts the most basic and minimal management of the Torch Laboratory, including annual project review, admission, assessment, degree awarding of joint training students, and decision-making power when major personnel changes occur, etc. . For most daily affairs, the school allows the laboratory to implement a reporting system instead of an approval system, that is, the laboratory director can make decisions without school approval, and only needs to inform the school after the decision is made. It can be regarded as giving Chang Haonan enough autonomy. At the end of the 1990s, the states management of scientific research funds was still relatively loose ?Of course, the main reason is that most research groups simply dont have much funding to manage, and many projects are even funded by teachers themselves. But even under such a general background, it is very rare for Chang Haonan to be able to grasp both personnel and finance. Therefore, when Tang Lintian was speaking to the end just now, not to mention the other people present, even Yuan Xiangya, who was a second-level professor, showed a slightly envious expression. He does have an independent research center. But in terms of scale and treatment, compared with Chang Haonan, it is far behind. ??The conditions Jinghang offered to the latter were completely based on the standards of academicians, even senior academicians. You should know that Tang Lintian just said that the school has the right to decide on "major personnel changes". In a laboratory, the only person who can be called a "major personnel" project is the director, who is Chang Haonan himself. At most, when the laboratory becomes larger in the future, a deputy director and a separate chief scientist will be added. In short, the teachers below are definitely not included. In other words, Chang Haonan can even recruit researchers by himself, and unless there are any major problems, these people must be recognized by Beijing Airlines. ?Who are you going to talk to to reason with this? ?But after thinking about it, it doesnt seem too outrageous. After all, for a school-enterprise joint laboratory, if not all of the funding, at least the bulk of it must come from the enterprise. And the enterprise, that is, Torch Group... It seems that Chang Haonan is also in charge. The left hand is turned into the right hand. It belongs to yes. Professor Chang, the school has temporarily determined the establishment of 4 teaching positions and 1 administrative position for the Torch Laboratory. After announcing the last big news of the day, Tang Lintian turned to look at Chang Haonan: "But if you need it, you can recruit others as long as the personnel expenses do not exceed the preset share of funds. However, these extra personnel can only be regarded as contract workers. If you want to convert to permanent employment, you have to wait. The school will further expand the quota, of course, we will definitely implement it as soon as possible..." "In addition, your enrollment rights are the same as those of other doctoral supervisors, one doctorate and one master''s degree every year. However, the postgraduate admissions for 1999 have ended, and enrollment is about to begin in August, so enrollment will not officially start until next year. Of course, if you recruit If you are a recommended student of this school, you can enter the laboratory this fall. I think you should be very clear about this process..." ?It has only been three years since Chang Haonan recommended himself to graduate students, and most of the regulations and operations are not much different from what he did back then. The most obvious change may be that due to the overly ambivalent performance of Chang Haonan and Yao Mengna, "directly studying for a doctorate" has changed from a special event in the past to a normal project, but the number of places is higher than that of a master''s degree. Less, and the supervisor who recruits direct PhD students is required to write a statement. Finally, Tang Lintian concluded: If you have any problems that need to be solved during the establishment of the laboratory, please contact me directly and the school will fully cooperate with you..." Chang Haonan is naturally satisfied with these treatments. One doctorate and one master''s degree every year may not seem like much, but it is impossible for him to devote too much energy to cultivating students. ??If you really dont care about recruiting students and leave them to fend for themselves on a topic, then its better not to be a tutor. Then, happy cooperation, Principal Tang. He stretched out his hand towards Tang Lintian. Its a pleasure to work with. (End of this chapter) Chapter 740 Build a building, buy equipment, build a laboratory Chapter 740: Build a building, buy equipment, and build a laboratory Several major events were decided in succession within one day, and they were all related to Chang Haonan. The next lunch must be handled by him no matter what. With today''s lineup, especially the presence of a national treasure-level senior citizen like Qian Lao, it would be a disadvantage if we went out to find a hotel to eat. Fortunately, Chang Haonan had already prepared. Certainly not just for today. It came from the beginning of the year, when he wanted to talk to Lao Wu about something, but couldn''t find a suitable place for a while. In the end, he had to go to the guest house of the Aviation Industry Corporation to book a private room. ?After that, Chang Haonan learned from the experience and realized that Torch Group would probably have to do some similar sensitive business in the future. So he specifically applied to the higher-ups to build two high-standard private rooms on the second floor of the group canteen to meet similar reception needs in the future. ??By the way, I also made a small amount of money for public benefit ?Hit a Huaiyang cuisine chef for the canteen whose cooking is very in line with Chang Haonan''s own taste. It''s a pity that after the operation, he was so busy in the past few months that he was about to take off. Although he stayed in the capital for a long time, because of the affairs in the Balkans, he wanted to live in the Science and Technology Commission or Sanzuomen every day, so he had no chance. enjoy. Instead, Yang Huimei and Song Jingming were advantaged. Today''s situation is obviously the time for this arrangement to work. For a high-level business banquet, it is naturally impossible for guests to sit and wait. Therefore, when the group of people came to the private room and sat down respectively, the lunch that had already been prepared was almost completed at the same time. Xiao Tang. Lao Qian took a sip of the lion''s head stewed clear soup, and then looked at Tang Lintian, who was sitting diagonally opposite. In fact, when one reaches Tang Lintians level, most people will call him Teacher Tang, Principal Tang, or Professor Tang when they see him. But Qian Lao obviously belongs to the outside world. ? No matter in terms of contribution, status or qualifications, let alone Tang Lintian, even Du Yishan, if he really wanted to call him Xiao Du, the latter would have to agree. ??Its just that since everyone is an academician of both academies, we usually call them by their first names in private. Qian Lao. ??Tang Lintian quickly put down the spoon in his hand and looked like he was listening carefully. This school-enterprise joint laboratory that you and Xiao Chang are building, in addition to Beijing Hang University and Torch Group, should the local government in Beijing also provide some policy support? ?Although this sentence sounds like a question on the surface, when it comes from Qian Lao''s mouth, it should be regarded as a statement. Meaning that if there is no support now, then I will suggest them to support it when I go back. ?However, those who can sneak into the capital and become leaders must have no say in terms of vision. How could they wait until Mr. Qian made a statement and already provide support policies while the laboratory is still in the project approval stage. "some." ?Tang Lintian nodded and explained to Mr. Qian: However, its not about funding, its about a piece of land being approved. I went to see it outside the North Fifth Ring Road, which is currently being planned. The area is large enough to build a research institute. Thats okay. Mr. Qian naturally understood the value behind this support, so he nodded with satisfaction: You are engaged in engineering, especially if you are engaged in dynamic research, how can you do it without a venue... Yuan Xiangya, who had been engaged in applied mathematics for half his life, had never seen such a posture before. He immediately stopped his chopsticks and looked at Tang Lintian with a blank expression: "So...Principal Tang, are you planning to build a new laboratory starting from the building?" Although mathematical research in the 1990s no longer requires only scratch paper and pencils as in the traditional concept, if you add in the construction of supercomputer and the corresponding use costs, the consumption is actually not low, but in comparison, in the battle In terms of engineering, it is still far inferior to Chang Haonan and Tang Lintian. ?Tang Lintian waved his hand: That land has just started to be developed, so Professor Chang will definitely have to live in our school for the first two years and wait two years before he can move there. In fact, placing the Torch Laboratory in the outer ring is only the first step in his plan. What Tang Lintian really wants is to build a new super-large comprehensive campus for Beijing Airlines in the suburbs. ? Considering that Beijing Airlines is now a member of the C10 Alliance and the first batch of "985" engineering universities, it will definitely expand in the future. ??However, Beijing Airlines current campus is located between the third and fourth rings. ?Although it was still a suburb when the school was founded, with the rapid expansion of the city in recent years, land is now at a premium. It is basically a foolish dream for the school to continue to expand around its original site. Furthermore, in Tang Lintian''s view, conducting research is not suitable for doing research in a downtown area, either from the perspective of confidentiality or from the perspective of the research environment. The Torch Laboratory is equivalent to throwing stones to ask for directions. After all, the new campus he envisioned must be much larger than a laboratory or research institute. If he goes directly to the superiors to ask for policies, he is afraid of scaring others. ?You have to have a small fight first to give the other party some mental preparation. At this time, Chang Haonan also continued what Tang Lintian said and added: Actually, if you just do some research on the theoretical level of numerical calculation, its not a big problem to continue in the same place, but I still hope to combine mathematical theory with practical projects. In this case, it is inevitable to conduct a lot of experiments and tests, but the nature of my research content is quite special. I cannot entrust this content to outsiders, so I have to build it all myself. ??The explanation that the two sang and harmonized made Yuan Xiangya even more shocked: Then wouldnt it be necessary to purchase a large amount of equipment at one time? Of course. ?Chang Haonan replied in a calm tone. ??Torch Group currently has two main sources of income, one is the conversion to the official version of TORCH Multiphysics, and the other is the joint venture established with C.B. Ferrari. ?Although it seems a bit single, the revenue capability is definitely not impressive. ? Among them, TORC Multiphysics has a monopoly position in the world, and Torch-C.B. Ferrari''s products are almost the only choice for high-end machine tools in the Chinese market. Although as a state-owned enterprise, not all of the income can be used casually, but there is still no problem in spending part of it to sponsor the laboratory. ?Furthermore, Beijing Hangzhou University has also prepared a R&D fund of hundreds of millions of yuan, which is enough to build a prototype laboratory. Speak of this. Liu Zhenxiang, who had not spoken to him just now, suddenly spoke: Outside the planned North Fifth Ring Road, isnt it already in Changping? Isnt it a bit remote for students and faculty? After all, it is a school-enterprise joint laboratory, and the school part must still be taken into consideration. It is certainly a good thing to stay away from the busy city, but it is not advisable to go to the other extreme because of this. The balance here is where managers are tested. At present, there is indeed a point. ?Tang Lintian did not deny it directly: However, on the one hand, the land planned for the Torch Laboratory is very large, more than 100 acres, so it is not a building, but a park-like one, and separate dormitories can be planned. ?At this time, even Liu Zhenxiang felt that it was a bit exaggerated. But Tang Lintian hasnt finished speaking yet: On the other hand, I am going to fight with the authorities to see if we can set up a branch line, or at least a subway station, nearby when planning the subway line to facilitate commuting. !! ??? (End of this chapter) Chapter 741 If you can’t do math, you just can’t Chapter 741: If you cant do math, you just cant ?Of course, having said all that, independent venues and subway lines are still under planning. Especially the subway. If it is built too far away, the significance of the initial planning will be lost, and if it is built too close, it may affect the operation of some highly sophisticated experimental devices. Hence, it is necessary to adopt a different technical route from the normal track, and even consider setting up a special shielding layer. Even if the approval for the construction is approved, detailed communication must be communicated with the municipal transportation unit. In short, it is difficult to completely solve the problem in the next one or two years. So during this period, Chang Haonan still had to set up his laboratory on the main campus of Jinghang University. After the guests and hosts had a good time, Chang Haonan sent the big guys to the car respectively. But Tang Lintian stayed. School-enterprise joint laboratories, after all, involve hundreds of millions of dollars in funding and the development of more than a dozen students and teachers. It is definitely not something that can be done just by shaking hands and announcing it. ?Tang Lintian waved his hand: You are responsible for compiling the textbooks used in theoretical courses, and you are also responsible for developing the calculation tools used in practical courses. You still say that you have never taught students? ?Seeing that Chang Haonan no longer refuted, Tang Lintian paused for a moment and returned to the original topic: Tang Lin couldnt find the tea he wanted for a long time, so he had to turn around and sit back on the sofa next to him to drink boiled water: "The first batch of master''s students who have taken that course finished their second year of graduate studies this summer and just entered internships. Judging from the feedback results, it is obvious that this content is very valuable and can often be directly used in actual work. " What I just wanted to say is that, inspired by this course, I was wondering whether we could consider offering more courses that are close to reality, and on the other hand, whether we could consider allowing students to start as early as possible, such as in their second year of undergraduate studies or In the third grade, you started to get involved in actual research and development or engineering projects? Ive even heard that some students will specifically write down their grades in this course on their resumes as a highlight when looking for an internship Actually, I didnt feel it before, but after you and Professor Liu started that course in the past two years, the gap has become obvious. "In your case, even if you have never taught students directly, you can still be considered a half-teacher at least, let alone have been on the stage once. Judging from my experience, after a few years after graduation, students may not remember I cant remember the name of the teacher who gave the lecture, but whenever I look up the textbook, the editors name is always written on it. First of all, that class was taught by Teacher Fang. I just went up and gave a few words to him during his first class the year before last..." Although most of the contracts and procedures have been completed before, there are still many trivial but important details that need to be determined personally by the top leaders of both parties. At this time, Chang Haonan finally understood. Wait a minute, wait a minute By the way, Professor Chang. In fact, Chang Haonan doesn''t know much about talent training, but at this time, he can''t spread his hands and say, let''s change the topic. Besides, he is about to be a doctoral supervisor. This is different from what he led in the research institute in his previous life. Being an apprentice is not the same thing, so I continued following the other persons topic: "How to say?" ??Tang Lintian followed Chang Haonan into the office, but he did not sit down immediately. Instead, he skillfully came to the cabinet by the wall and looked up and down: Actually, I have been thinking in the past two years, is our talent training somewhat out of touch with social needs? ?In terms of teaching numerical calculation methods, Beijing Airlines is undoubtedly at the forefront of universities across the country and even around the world. Hey...dont worry about these details. Chang Haonan listened to the other party''s remarks and became more and more biased, so he quickly interrupted: This leadership is undoubtedly one of the important reasons why Beijing Airlines can become an initial member of the 985 Project. After Tang Lintian tasted this sweetness, he would naturally want to go further. However, as a reborn person, Chang Haonan knew that this kind of thing could not be repeated even if he did not understand education: "Principal Tang, the focus of education is stability and continuity. That course has been very effective in the past two years because when the textbook was written, the content in it reached, or I can say with certainty, far exceeded Cutting-edge of the times. "But as more and more researchers pay attention to numerical calculations, its development speed will be much faster than in the past. If nothing else, I will talk about the new version of TORC Multiphysics that I plan to launch next. Its already very different from the trial version in that textbook. "In the future, we may upgrade the software every six months to a year, but it is impossible to update the textbooks every six months to a year. Therefore, the key is to lay a solid foundation. The knowledge learned in college is eternal. , no matter how advanced it was at the time, it will become obsolete sooner or later, but the learning ability learned is alive and can always be used. At this point, Tang Lintian already had an enlightened expression on his face. Just when he thought Chang Haonan was going to come up with some earth-shattering plan, the latter suddenly changed the subject and suddenly saw: Speaking of numerical calculations, in my opinion this thing remains true to its roots. "So, if you really want our students to adapt to the times faster, then offer more basic mathematics courses in the first and second years of college, especially mathematical analysis and linear algebra. As the foundation of the basics, we must pay more attention to it. Ahem As soon as these words came out, not to mention the future students, even the principal Tang Lintian almost choked, and a lot of water in the cup spilled out. As the saying goes, "Your eyes will deceive you, and your ears will deceive you. Your experience will deceive you, your imagination will deceive you, but mathematics will not, and mathematics will not." From elementary school to graduate school, mathematics is definitely the most troublesome subject for most students. You are not leaving any way for your juniors to survive... Tang Lintian wiped the sweat from his forehead. He had already thought that if he really did this, he, the principal, would be scolded to death. ??Furthermore, the failure rate is likely to skyrocket in the short term, which is not a good look for the school. . However, in the long run, it can indeed help improve students abilities. I cant talk about the issue of undergraduate training. I still have to go back and discuss it before making a decision. ??Tang Lintian felt that he still had to give himself a buffer first. ?This is his first year as the principal, and it would be really stressful if he had to do such a hard job right from the start. After all, strict control of mathematics teaching is not only a test of students, but also a test of teachers. Let me talk about another thing first, which is to let middle and senior undergraduate students participate in research and development or engineering projects... ?Chang Haonan waved his hand to interrupt the other party. He knew that this was because his magical performance gave Tang Lintian some unrealistic thoughts, but he could not clearly say that he was cheating, so he had to choose a more roundabout route: This matter is the same as what I just said. Whether undergraduates enter the laboratory or participate in projects, they must first ensure that they have sufficient ability foundation and can quickly invest in the project after being exposed to it. If it is just a simple start and do some repetitive work with no nutrition, Then I think its better to use this time to arrange more math classes. ?Tang Lintian once again put on the mask of pain. Lets do this, Principal Tang. After a moment of silence, Chang Haonan gave a "compromise" condition: Torch Group can provide Beijing Airlines undergraduates with some opportunities to participate in non-confidential projects, but before that, they must pass our groups ability assessment, how about that? (End of this chapter) Chapter 742 a new discipline Chapter 742 A new subject After some cordial and friendly exchanges, Tang Lintian finally agreed to adjust the number of class hours and assessment methods of basic courses as soon as possible, and Chang Haonan also promised to allow two senior students to participate in public practical projects through his research group every year. When students who are included in this training method graduate, in addition to the normal degree certificate and graduation certificate, they will also receive a certificate of participation in the "Excellent Engineer Training Program". It can be regarded as a satisfactory result for both parties. Now that the matter is over, I wont bother you any more. ?After receiving Chang Haonan''s assurance, Tang Lintian put down his empty glass, stood up and prepared to leave. As the host, the former naturally could not let the other party go alone, so he quickly got up to see him off. ?While taking the elevator downstairs, perhaps to avoid being left in the cold, Tang Lintian asked casually: Professor Chang, I wonder what research direction you plan to choose first after the Torch Laboratory is established? Well...two levels. Chang Haonan nodded: So, what I am planning to enter is a new direction, combining numerical methods with materials science research. Tang Lintian is not from Neo-Confucianism and does not know much about cutting-edge mathematical theories, so he decisively gave up studying the last half of the sentence. "As for myself, I plan to focus on materials science next. Of course, as I said during my defense in the morning, I will study the application of inertial manifolds in dissipative partial differential equations, which naturally also includes the application of N-S equations, but later This research is at the level of mathematical theory and relies more on inspiration, so it is difficult to have a definite timetable. ?In terms of engineering, Tang Lintians ability to draw inferences from one instance is quite strong. Thats true, but the simulated objects are different. Chang Haonan smiled: ?Furthermore, he is originally from computational fluid dynamics, so it is easy to make analogies to his own research field. ?Chang Haonan thought seriously for a moment until the elevator reached the first floor and the two of them walked out before answering: After all, the laboratory as a whole has just been established, and Im afraid it wont be able to do any particularly difficult topics, so I plan to find a few less difficult projects in the aviation system to practice my skills on, and also to enhance the understanding among the members of the research team. " Looking at Tang Lintians slightly confused eyes, he had no choice but to give a further explanation: Simply put, it is a directional analysis and calculation of the characteristics, structure, components, and processing technology of materials through physical modeling and numerical calculation methods. ??A large wave of whales (sharks) have also revitalized many companies from China, South Korea, Eastern Europe and even Southeast Asia. Well, of course I know that. Materials science? Our school doesnt have much research foundation in this area ?What Chang Haonan was talking about was the time when he designed the bearing steel formula and process for the three major bearing groups. To some extent, it can be regarded as an indirect result of the concentrated decline of a large number of Japanese brands represented by NSK and NTN Group in the European market. Doesnt that mean that in the future, the field of materials science may be like our aircraft design, where the user gives a series of performance parameters, then carries out targeted design, and finally provides customized technology and processing solutions? Well, materials science mainly focuses on particle relationships at the microscopic level or multi-field composite relationships at the macroscopic level. The requirements for computing power and algorithm design are not exactly the same as computational fluid dynamics. Tang Lintian also knew that even if he had reached the top in scientific research, otherwise he would not have turned to full-time administration. Therefore, he was very self-aware and did not discuss the technical details in depth, but changed the subject: "This...should be considered a new subject? At least I have never heard of it before." Compared with the traditional research method of materials science, which is close to alchemy, once my idea is realized, it will have obvious advantages in terms of predictability and regularity. Actually, this research direction has existed for a long time. Not to mention others, I myself completed a special steel-related development project the year before last, using the method just mentioned. Looking at Tang Lintian who was already a little dazed next to him, Chang Haonan paused for a moment, letting the other party relax a little before continuing: Including the recent production acceptance process for heavy-duty die forging presses, I also tried to use numerical methods to guide the research and development of titanium-aluminum alloy forging processes. Judging from the results, the overall efficiency has been improved by about 40%. However, as of now, research in this area is still relatively scattered and has not formed a complete discipline. If I were to say it, it may be called computational materials science. Different from the situation more than 20 years later when the average person went to materials science journals to fill the gap, in the late 1990s, materials science could not be regarded as a prominent science, and it was still a relatively weak part in China. But it is precisely because of this that the input-output ratio will look better In order to make up for deficiencies in the material field, technicians are often forced to perform at a higher level in other parts such as design optimization. ?In this case, when material science in turn fills in the shortcomings, it will often have the effect of affecting the whole body. As previously achieved in the field of bearing gear steels. Then, I wish Professor Chang success in his new research direction! ??For Tang Lintian, after successfully getting his school into the top C10 league in China, he indeed feels like he has lost his life goal. But now, it seems that another golden opportunity has appeared in front of him. Create a new discipline. It is true that this kind of thing cannot be done by one person alone. But there must be one person who can serve as the core. If you have any problems, the school will try its best to help you solve them! Before getting in the car, Tang Lintian shook hands with Chang Haonan again. In fact, considering that the latter is already considered a "half-step academician" and is about to take up the post of chief planner of the Aviation Power Group, if we really count, the resources at his disposal are actually more than those of the president of Beijing Airlines. Tang Lintian only had more. But no matter what, the attitude must be set here first. ?Furthermore, no one would support too much, right? ?After the dust settled on his doctoral defense, Chang Haonan did not immediately engage in new work. Instead, he planned to rest at home in Beijing for a while. After all, the test flight process of Turbofan 10 is going well now. As for setting up a laboratory... The candidates for several lecturers have been basically determined, but the next class of students will not be able to start contacting them until August or September at the earliest. ?It''s okay if you recommend exempted students. If you are a student preparing for the postgraduate entrance examination, it is impossible for others to come over to work at least before the initial examination. There is no hurry to come to this moment. Furthermore, in the nearly five months since the Spring Festival holiday in February, he has been traveling almost non-stop in Jiangcheng and Beijing, occasionally taking time to listen to the returns from the Taihang project. Does need to relax a little. ?However, the idea is beautiful. At Chang Haonan''s current position, his time no longer belongs entirely to him. Having not enjoyed a few days of relaxation, I received a call from Ding Gaoheng. A lot of things happened in the more than half a month before and after his defense. The most important one is ?The fragment of the B2 bomber was carried back by Lao Wu among a pile of sample materials from the Azov Steel Plant. (End of this chapter) Chapter 743 Top Secret Archives (New January, please vote for me) Chapter 743 Top Secret Archives (New January, please vote~) ??When Chang Haonan came to Ding Gaoheng''s office again, the latter was staring at the computer in front of him so intently that he didn''t even notice that a person appeared at the door of his office at the first time. It wasnt until Chang Haonan knocked on the door that he came back to his senses, raised his head and looked outside: Xiao Chang, your schools information is updated very timely. ? Ding Gaoheng motioned for the other party to come in, and then pointed at the screen. As a top scientist, he is certainly able to operate computers proficiently, but firstly, he still prefers to use pen and paper instead of typing on the keyboard. Secondly, after all, he is old and cannot see the small words on the computer screen clearly, so unless necessary, Therefore it is rare to see him using the computer on his desk. Let alone being as focused as I was just now. Out of curiosity, Chang Haonan walked straight to the side of the desk, but the viewing angle of the CRT monitor was really bad. In the end, Ding Gaoheng turned some angles towards him to see the content clearly. ?? is the official website of Beijing Hang University that was just opened. Under the title of the website, there is a photo of Chang Haonan when he received the award, as well as an introduction to the research direction and scientific research results. "Not bad" HmmI think so too. Ding Gaoheng straightened the monitor, then closed the web page and looked at Chang Haonan again: So, your degree is finished now? The defense has been completed, but the degree certificate and graduation certificate, as well as the letter of appointment as a professor at Jinghang University, have not yet been issued. Just now Ding Gaoheng was talking about this matter, so Chang Haonan climbed up the pole: Its just an experience from another perspective The Seiko Plan and the 973 Plan have formed a fixed mechanism, and a batch of new projects will be added every few years, and most of them are long-term basic topics that do not meet the requirements for practice. ?Chang Haonan is about to take office as the chief planner of the Aerospace Power Group, but there are no small things related to aerospace engineering, so it is definitely not easy to practice. ?Chang Haonan took two steps back and sat back on the sofa next to him: Principal Tang said that it will be available next week, and it will be officially started at that time. First, let the new comrades who join my research group be responsible for a few small tasks independently to practice their skills. After they are familiar with the situation, they will gradually increase their responsibilities. At that time, Director Ding can help coordinate several suitable projects for me..." In fact, Chang Haonan has been thinking about making an official website for his laboratory in the past two days, but now it seems that the school is obviously more anxious than him. Even if the parts that cannot be made public have been removed, it still seems too cramped to accommodate the content on just one page, so that the layout is a bit strange. After you have a fixed scientific research team, trivial projects can be handed over to them, and you can focus more on yourself. So it is safer to go through Ding Gaoheng. Similarly, Chang Haonan also has a deep understanding of this. ?Although he is said to be the project leader, in reality he can only be regarded as the positioning of screws. Before his rebirth, he was in a big bosss team, specializing in handling such trivial projects. In his research group, even screws are not that easy to use. ?Of course, the concept of triviality also varies from person to person. This is obviously based on the experience of people who have experienced it. "You kid...Okay, when there is a suitable project, I will pay special attention to it for you." Ding Gaoheng naturally understood what Chang Haonan was thinking, but he still nodded and agreed: However, is it possible that all of your research team are fresh graduates? ?Although Chang Haonan has also just graduated, he has obviously been excluded by Ding Gaoheng as an outlier. If I have to say it... Im actually not a complete novice. Chang Haonan raised his head and thought for a moment before replying: "The candidates currently confirmed are my senior sister, the one who participated in the 83rd Project together before, and has been responsible for the final assembly planning in the 11th Project in the following years. There are also two PhDs from Professor Yan Yongnian of Qinghua University, who have followed Yan The professor also participated in the research and development of the die forging press. But what After briefly introducing the situation, he changed the subject: From my experience, there is a big difference between participating in a project with a mentor, being responsible for a part of the project, and being responsible for a complete project, so its better to let them get used to it. " Thats true. Ding Gaoheng nodded empathetically: Actually, its not necessarily a problem of ability, but a psychological problem. Especially after suddenly there is no one who can be the backbone, it is inevitable to feel nervous when encountering problems that require decision-making. When I was just transitioning from the subsystem leader to the project leader, I was so worried that I couldnt sleep all night long. Well As he spoke, he lowered his head slightly, pointed to the top of his head, and said half-jokingly: When I was young, my hair was very dark and thick, but during that time, it all fell out Hearing this, Chang Haonan spent a lot of effort not to laugh out loud, but he still almost failed many times, so he had to quickly move to the main topic of this visit: Speaking of which, Director Ding, the fragment you were talking about when you called me just now Its in the basement of the Science and Technology Commission. Ding Gaoheng stood up and took two long-sleeved coats from the hanger next to him. He put one on himself and handed the other to Chang Haonan: "Come with me." ??Although Chang Haonan has almost regarded the Science and Technology Commission as his home, he did not know before that there was such a seemingly inconspicuous but well-guarded place under the building. "Logically speaking, things with research value should be transferred directly to relevant research institutions. However, the confidentiality level of this thing, especially the origin of this thing, is too high. Even the Aerospace Materials Research Institute does not have it for everyone. Quan knows that, so he can only put it in this archive temporarily, and wait for a team that meets the requirements to be dispatched there, and then send it there for research..." Although it is said to be an archives, judging from the various things I saw after entering the door, the "archives" here are definitely not limited to paper materials. I''m afraid it also functions as a museum or a vault. ?For example, the pod retrieved from the snowy mountain two years ago, after being studied and reproduced by Chang Haonan and Electronics 14, is now placed on a long table to his right. As if he noticed Chang Haonan looking around, Ding Gaoheng, who was walking next to him, immediately introduced: Whats on these tables are the results of our bat hunting operations back then. You have already studied the pod. Next to it is the front windshield of the MiG-25RBK, and next to it is the relatively intact radome, as well as the pistol and parachute carried by the pilot..." ?Although Chang Haonan knew the general process of bat hunting, he was still a little overwhelmed. Mainly because I didnt expect that I would bring back so many trophies, or rather souvenirs. "The ones over there are from the embankment-building operation the year before last. Our warship happened to retrieve the auxiliary fuel tank lost by a Sea Harrier fighter opposite. We happened to encounter the unmanned submarine captured by the Self-Defense Force submarine during the previous joint exercise. Of course, it is submarine. The two sets of GPS receivers on the device have been removed for your kid to use..." Earlier, in the 1980s, our special agents brought back an RP-22 fire control radar through special channels, and an AIM9L air-to-air missile bought from the black market in the Great Patriotic Republic In short, these things are not suitable for the Junbo for the time being, so they can only be left here with us. While speaking, Ding Gaoheng had already led Chang Haonan to a filing cabinet. ?This time, the former does not need to be introduced. ?A completely black fragment with obvious signs of ablation and external force damage was placed on the second floor of the filing cabinet. ?There is also a label attached below - Fragments of a B2 Spirit of Kansas bomber, April 18, 1999, in the Balkans (End of this chapter) Chapter 744 The starting point of the aircraft carrier dream Chapter 744 The starting point of the aircraft carrier dream ??The moment he walked to the filing cabinet, Chang Haonan felt as if he was between two intertwined times and spaces. The architectural ruins and monuments of the previous life, and the plane wreckage and debris in front of us in this life... Shortly afterwards, it turned into scenes that he had experienced in the past three years. The initial course design in Liu Hongbos class; The project team seminar I attended when I first arrived at 601 Institute; ?Sit in the front seat of the J-7 and observe the airflow distribution on the surface of the aircraft; Prototype No. 01 was damaged due to forced landing due to surge; The turbojet 14 has been resurrected after major changes; New anti-icing system starting from Yun 8; The turbofan 10 that reached usable status ten years ahead of schedule In front of his eyes, things appeared, disappeared, and reappeared like a revolving lantern... and finally came together. Unknowingly, the world has changed so much because of his arrival. It is a pity that since many things did not happen in this timeline, he, a reborn person, cannot share his feelings at this time with anyone else. Chang Haonan was relatively confident in the technology he had developed, but the series of events that happened before and after shooting down the B2 were completely beyond his expectations: Especially the GPS interference part. Xiao Chang? "The main reason is that I never thought that I could completely destroy the Allied operations that had already started...Originally, I just wanted to increase the losses of NATO, especially the Americans, as much as possible. It would be good to let their advanced equipment lose their chain. Already ThisI personally dont care There are very few people who know about this, so there arent many people trying to grab it from you. And even if there are, your side must be the highest priority. Thats easy to say. In fact, he still feels that these were all calculated by Chang Haonan long ago. Fortunately, since many things did not happen in this timeline, no one else needs to feel the same way as him... Ding Gaoheng glanced at Chang Haonan next to him with a suspicious expression. ?After admiring his "results" for a while, Chang Haonan turned his attention to other parts of the filing cabinet. The latter stretched out his hand and lightly touched the words "AF8901" on the surface of the fragment: Although it has been almost two months, when I see this fragment, it still feels like a dream. ?It wasn''t until Ding Gaoheng patted his shoulder that Chang Haonan came back from his thoughts. Chang Haonan said and took a step back: However, after the Aerospace Materials Research Institute figures out the composition of the surface material and base material, they can give me a copy of the analysis report, which I may need for subsequent research. I never imagined that they could actually use the most traditional anti-aircraft weapons to shoot down the latest stealth bombers. ?But since the other party had already said this, he couldnt refute anything, so he had to change the topic: Originally, we actually thought about making some scraps into souvenirs after research and handing them out to people who participated in this operation, including you of course, but later we put it on hold due to safety issues. Ding Gaoheng replied: Its not just that. "yes" Otherwise it would be too much of a coincidence. Ding Gaoheng leaned down and looked at it carefully through the light above his head, and at the same time continued: But there were no other things piled on it like the long table on the other side where the trophies of the bat hunting operation were stored. Its a pity that I couldnt bring anything else back Chang Haonan sighed and said. Actually, when he first heard that Lao Wu had returned with a fragment, he was quite overjoyed. But men are all big hooves. After seeing it or even touching it, I suddenly felt a little bored. Ding Gaoheng shook his head, showing a dumbfounded expression: "It''s good to have such a thing... Fortunately, it''s relatively thin, and it''s not too noticeable after being wrapped. It''s easy to get away with it. If you get an ejection seat or landing gear or something, let''s not talk about its use. Big, its actually difficult to bring it back quietly like this..." Chang Haonan naturally understood the truth, so he did not dwell on this matter, but continued following what Ding Gaoheng said just now: Speaking of getting away with it, I remember when you called me this morning, you said that this thing was sent back together with the samples and materials from the Azov Steel Plant? Hearing Chang Haonan talk about another topic, Ding Gaoheng stood up straight again: Yes, the name is importing industrial support parts, which is already a very mature route. The compilation of technical data and testing of samples ?Chang Haonan''s tone suddenly became excited. To study computational materials science, it is definitely not possible to rely solely on computer calculations in the void. A huge materials database is also needed. ?Compared to a single stealth coating, if all the data from the Azov Steel Plant can be included, it will undoubtedly be of great help to later research, at least in the field of metal materials. Its ongoing, but the progress is not very optimistic. This archive is located underground, and the environment is quite cold. Especially for Ding Gaoheng, who is quite old, it is difficult to resist for a long time even if he wears a coat, so he answered and prepared to leave with Chang Haonan: After the disintegration in 1991, the production and management there were very chaotic. In the past eight years now, many materials have been stolen and even those that have been preserved are generally arranged in a disorderly manner, and it takes a lot of effort to rearrange them. "And just like when Project 11 was first started, there are not many people in the domestic metallurgical field who understand Russian. Now we can only hire back some retired old engineers and technicians, but these people Most people dont know how to use a computer, so they can only write it on paper first, and then find someone to type it in..." Hearing what Ding Gaoheng said, Chang Haonan also realized that he had oversimplified things a bit. However, the shipbuilding industry system, and even the navy, have sent manpower to support this matter. They are more anxious about this matter than you, so it is estimated that it will be almost completed in another six months to a year. While talking, the two of them had already gone upstairs again and returned to Ding Gaoheng''s office. As an important special steel production base during the Soviet period, the Azov Steel Plant is almost equivalent to a rich treasure house. Almost all the special steel materials needed by all walks of life can be found in related technologies, but if it is accurate to the shipbuilding industry, the first thing that comes to mind is Of course it is an aircraft carrier. Since the Sea of ??Azov is connected to the Black Sea, the large ships built by Nikolayev Shipyard will basically use the steel produced by the Azov Steel Plant nearby. Director Ding, what do you mean, are you planning to build an aircraft carrier? ?In the original timeline, there has always been controversy on the Internet as to when the leadership finally made the decision to directly convert the Varyag into a Type 001 aircraft carrier, rather than just as a design reference. As a member of the aviation industry system, Chang Haonan had no way of knowing the inside information of his brother unit. But in any case, if the decision can be made in June 1999, and the information that Lao Wu got back from Er Mao is far more complete than in the previous life, the progress of transforming the aircraft carrier will obviously be accelerated a lot. "Um." Ding Gaoheng nodded and gave an affirmative answer: We have received reports that Luchuang Group has signed a formal purchase agreement with the Black Sea Shipyard and is currently planning the route and method of returning to China. If everything goes well, it should be able to set sail before the National Day this year. Chang Haonan naturally knew that the process of towing this aircraft carrier back to China was not smooth. In the end, it took more than two years to delay, and I did not return to China until March 2002. The conditions for this are still secondary. The key is that too much time is wasted. However, the aircraft carrier hasn''t set off yet, so he can''t just say that. I guess Turkey and Egypt will block it midway, so I have to think about it first and see if I have anything more in my hand than in my previous life. chips. Especially the process from the Black Sea to the Mediterranean Sea. ??If the Suez Canal is not possible, you can still go through the Cape of Good Hope. ??But the Bosporus cannot be avoided no matter what. (End of this chapter) Chapter 745 Regarding the planning of carrier-based aircraft Chapter 745 About the planning of carrier-based aircraft ?Chang Haonan finally decided to put aside the matter of finding bargaining chips with Trkiye. After all, the Torch Group alone has now spread its business to at least a dozen countries in Europe and Asia. There are dozens of directly related patent authorizations and cooperation projects. If we consider the existence of There are countless indirect contacts. It would definitely be very inefficient if he was left alone to think about it. ??It would be better to ask Song Jingming to go to the archives and conduct a systematic inventory after returning. If you can find it, you can use it directly during negotiations. If not, you need to consider whether you can play a hand of void cards. After all, compared to the previous generation, Chinas own national strength is stronger now, and its relationship with the EU is also closer. At the end of the 1990s, Turkey generally had a dog-licking mentality when it came to the EU. Hence this latter point is important. Ding Gaoheng naturally didnt know that Chang Haonan was already thinking about things a few months later. He just took off his coat and hung it on the hanger, then sat back on the office chair and continued: An aircraft carrier is not just a big ship. If it wants to exert its combat effectiveness, its core is carrier-based aircraft. "Our navy is developing relatively slowly. Even for carrier-based helicopters, the experience in using them is very weak. Not all destroyer detachments are even capable of operating them, let alone fixed-wing carrier-based aircraft. The use, maintenance, and scheduling are all brand new. subject. Mature, of course mature! ??In this process, countless carrier-based aircraft fell down and pilots were lost. "As for combat effectiveness, the Su-33 is just a standard third-generation aircraft with the technical level of the late 1980s. The airborne equipment is not much different from the Su-27SK we imported before. The Russian Kuznetsov cannot leave port for a few days throughout the year. It is basically There is no motivation to upgrade according to Su-27SM standards, so it is impossible to compare with the J-11B after major modifications. " In this regard, even a country like the United States, which has operated aircraft carriers since before World War II, entered the jet age and iterated on five levels of aircraft carriers from Midway to Nimitz, as well as four generations of carrier-based aircraft from F9F to F18. , only then has a relatively stable and mature design and usage specification been formed. The Chinese Navy has neither resources nor time to waste like this. Xiao Chang, do you think, given our current situation, are the conditions ripe for independently developing carrier-based aircraft? At this point, he paused for a moment, straightened his upper body and looked at Chang Haonan on the sofa: ?Chang Haonan has limited knowledge about shipbuilding and the navy, but when it comes to carrier-based aircraft, he is not troubled: "However, there are still some differences between carrier-based aircraft and land-based aircraft, and more importantly, since our military has never been exposed to carrier-based aircraft in the past, users are not very clear about the specific differences. In this way, In terms of progress "So, the current meaning is to make two preparations. If the domestic model can catch up with the transformation progress of the aircraft carrier itself, then the domestic model will be used. If not, then we can also consider importing a batch first so that the troops can practice relevant subjects. Actually, this is a very real concern. Hearing Chang Haonans affirmative answer, Ding Gaoheng showed a satisfied look: "Imported carrier-based aircraft are nothing more than the Russian Su-33, and now on our own side, the first prototype of the J-11B has begun production, and the turbofan 10 has also entered the final stage of dual-engine installation testing. It can be said that , the two major obstacles that restrict our country''s third-generation fighter jets from achieving complete autonomy, structure and power, can be solved in just one step. As long as these two problems are solved, at least in terms of the most basic flight safety, there will be no major problems. ??And if you forcefully launch an immature model, and later find so many problems during use that it needs to be rebuilt, it will consume more resources. While speaking, he took out a notebook from the drawer next to him, opened it, and looked like he was preparing to record it. For a brand-new subject like carrier-based fixed-wing aircraft, the biggest trouble lies not in how the aviation industry system solves the problem, but in the fact that the navy does not have an aircraft carrier or a carrier-based aircraft in hand, how does it deal with the entire shipboard aviation operation? I have no idea at all and have no idea what the problem might be. Obviously, this question was not what Ding Gaoheng wanted to ask Chang Haonan, but what the former was prepared to do in response to inquiries from higher-level leaders. This is why in the original timeline, in addition to the upgrade of the airborne weapon system, the technical status of the initial version of the J-15 was closer to the T10K-3 prototype. After entering mass production, it gradually began to be upgraded to later domestic models in batches. Get closer. By the time the two-seater model of the J-15S is introduced, it is closer to the J-16 in terms of pedigree (the Su-33 does not have a tandem two-seater model). ?However, this was all in the past. Now, Chang Haonan naturally already has a plan: "If what is towed back is a complete aircraft carrier that can be put into use immediately, it is indeed impossible to come up with a highly complete carrier-based aircraft in a few months, but I heard Old Wu talking about it years ago Looking at the situation of the Varyag, the ship is currently only 60% complete, and the boilers and steam turbines inside have been dismantled, even if all the technicians and technical data from the Nikolaev Shipyard are brought over , it will be difficult to complete within three to five years. ?His tone was very determined. He picked up the cup and took a sip of water before continuing: "As for the problem of the Navy''s lack of operational experience, on the one hand, I asked Lao Wu to pay close attention to the situation at the Nitka aircraft carrier training base. He has already established a relationship with the managers at Ermao, although the fixed facilities cannot be moved. , but the design drawings and materials can be bought back, and the Ermao Navy only has a few small ships, so there is no room for naval aviation. The instructors in the base can also be introduced to the country through the friendship program to help us with training. " "On the other hand, when I helped Guihang Group design the JJ-9, I considered the possibility of being put on a ship, so I specially left enough strength margin for the rear fuselage and landing gear, so that it can be used within a certain period of time. Simulating shipboard dispatching operations to a certain extent allows the Navy to have a general concept of carrier-based aircraft operations. After discovering problems through land-based simulations, it can then be optimized to the official carrier-based aircraft model. " With this two-pronged approach, the three to five years it takes to build warshipsis enough to iterate several versions of technology verification aircraft. "The other is my field, aviation engines. The aircraft engines of carrier-based aircraft need to improve their salt spray resistance. For this, I only need to apply new coatings on the fan and compressor blades. The ion plating that was replaced before The production line has been put into production, so there is not much of a problem in this regard. Furthermore, when the ship is touched and go-around, there may be an emergency thrust larger than the afterburner thrust. This requires modifying the parameters of the afterburner... " Now that you say that, I feel relieved. Ding Gaoheng nodded while writing furiously. "Actually, I would say that it would be best to have a medium-sized fighter equipped with dual-center thrusters as a carrier-based aircraft, like the MiG-29K and F18. However, our financial resources are still very thin after all, and we really cannot afford to serve three. The third-generation aircraft of the model are in service at the same time, so we can only wait until the fourth-generation fighter is developed in the future..." ?Chang Haonans plan obviously does not stop at the immediate few years. Youre saying that mid-sized opportunities are better? Ding Gaoheng raised his head curiously. This is true for carrier-based aircraft. Chang Haonan explained: In the case of land-based aircraft, because the airports dispatch space can be considered to be close to infinite, when the technical levels are similar, it is natural that the comprehensive performance of heavy-duty aircraft is stronger and more advantageous. "However, aircraft carriers are very precious in terms of land, both in the hangar and on the deck. Although the performance of heavy-duty aircraft is better after takeoff, the area occupied during the maintenance process is too large, which will cause trouble for scheduling and is not conducive to improving the dispatch rate. Therefore, theoretically Generally speaking, for aircraft carriers of different sizes, there will be corresponding optimal solutions for the size of carrier-based aircraft. "From this perspective, it is best to determine the basic design of the aircraft carrier and then specially develop the corresponding model of carrier-based aircraft to achieve the best matching effect between the ship and the aircraft. However, this is definitely not the focus of our current consideration. Thats it Ding Gaoheng also followed Chang Haonans answer and completed the record, then closed the notebook and lightly dusted the cover: Old General Liu would be very happy if he saw this plan. Before he retired from his leadership position, the last document he signed was on the development of naval aviation..." Mr. Liu is known as the "Father of China''s aircraft carrier" and has made outstanding contributions to the modernization of the navy, including aircraft carriers. It was a pity that in his previous life, he was not able to see the day when China''s first aircraft carrier was commissioned. But based on the current timetable, that should be more than enough. Not to mention seeing it, maybe you can take advantage of the old man''s good health to go out to sea for a while... Planning is just a drawing after all. When Mr. Liu sees our countrys aircraft carrier, he will definitely be happier ?Chang Haonan also replied with a smile on his face. (End of this chapter) Chapter 747 Be a qualified boss Chapter 747: Be a qualified boss After exchanging pleasantries, Liu Fangping looked at the four people around him, including himself, and hesitated for a moment, but still asked: Professor Chang, besides you, there are only three of us in our laboratory? The configuration of one professor and three new lecturers is quite explosive in the scientific research world, especially in the circle of key laboratories. ??Although this professor is the youngest second-level professor in the country and a real boss who has already presided over national-level projects before graduating with a doctorate, he is also suspected of being top-heavy. Mainly because Chang Haonan, as the boss, is busy with everything and has not left the front line of scientific research, so it is impossible for him to do everything himself. Generally speaking, in this case, there should be several lower-level professors or associate professors in the laboratory who are responsible for the daily work. "According to the establishment, we still have one vacancy, but I haven''t found a suitable one yet, and I''m not in a hurry." Chang Haonan replied. In fact, he had contacted Xu Yang before and asked if he was interested in transferring his files to Beijing Airlines to teach. The latters current professional title is already a full senior researcher, and they can be seamlessly converted into a third-level or fourth-level professor after coming here. ?However, Xu Yang said that he had no intention of taking students. As for the other people he knows, they are either big bosses who lead the research team and it is impossible for him to help them, or they are older and have average potential, which is fine if they want to cooperate, but there is no need to recruit them into the laboratory. Liu Fangping''s reaction was a little flustered, and he waved his hands to deny it. However, he seemed a bit clumsy under the tension. He didn''t know how to explain it for a while. ?In the situation just now, Lei Zhixing did not add insult to injury, but chose to rescue his companion, which shows that the relationship between the two people is at least acceptable. In fact, if you can successfully graduate from Professor Yan Yongnian and be trained as a close disciple, you dont need to worry about your academic level. Chang Haonan considered that if two stress monsters appeared in a laboratory at the same time, the life of the students might indeed be a bit difficult, so he finally followed Li Jie''s suggestion and gave up the idea. Academician Li Jie, who heard about this incident, also said that based on the painful experience of the Institute of Computing Technology in the past few years when Xu Yang was asked to teach graduate students, which resulted in many people dropping out of school because they could not keep up with the pace, Chang Haonan was not recommended to let the latter serve as a teacher. position, but can be seconded to serve in purely scientific research positions. For him, the director of the laboratory, the quality of the two lecturers will not have any impact at all, but for the students recruited in the future, if the instructor, or even just the teacher in the same research group, is too inappropriate, life will be very difficult. It will definitely not be easy. In this way, he can feel a little more at ease if he wants them to be responsible for a topic or project at the same time in the future. Otherwise, Chang Haonan would not have been able to invite these two people over. ?But for him, if it is purely scientific research, then Xu Yang is already registered in the Torch Group, so there is no need to go through trouble and get a quota. Of course there is also character Chang Haonan asked in a joking tone while extending his hand to signal a few people to sit down. Indirectly, his reputation as a big boss will also be affected. Why, are you worried that my level is not good enough to lead our daily work? So this last establishment is temporarily vacant. No, no, no Its just that I have just changed from a student to a worker, and I dont quite adapt to this identity change. Fortunately, although Lei Zhixing next to him looks rough and tough, even standing next to Chang Haonan like a bodyguard, his reaction is much faster: We feel that, Professor Chang, you must be very busy at ordinary times. There are only three of us lecturers in the laboratory every day...if we are all fresh graduates, will it not run smoothly..." ??If their performance was not like this just now, then we should consider trying to separate these two people as much as possible. ?Chang Haonan looked calm on the surface, but in his heart he had already made a preliminary judgment about these two people. What he is more concerned about is the relationship between them. ??Although the mentors Chang Haonan met in his two lifetimes were pretty good, he had heard a lot of similar things. In the end, there were situations where teachers and students turned against each other. Whats wrong with the newbies? Everyone has come from the newbie stage ?Chang Haonan leaned on the back of the sofa and made a "big boss.jpg" look: Our Torch Laboratory is Beijing Airlines, or it is currently a key construction target of university-enterprise cooperation in universities across the country. We are considered to be explorers of this type of cooperation model. Too much past experience will limit our performance. Furthermore, I believe in your ability regarding the subject matter. If there are really unsolvable problems, we can solve them together. Of course, I still hope that you can rely on yourself as much as possible. As for the daily work of the laboratory, if you have any questions, you can contact Principal Tang directly. He will help solve it to the best of his ability. ?After saying this, Yao Mengna was already used to it, but Liu Fangping and Lei Zhixing had never seen this formation before. When the two of them came to Beijing Airlines to report before, Tang Lintian did say something similar to them, such as that school leaders should serve faculty, staff and students, but even Liu Fangping, who was not good at speaking, was just a bit dull, and it was not true. No brainer, naturally he just took it as a courtesy and didn''t take it seriously. A lecturer who has just joined the job should contact the principal directly if anything happens? How many dishes are there to drink like this? As a result, it seems now that the two of us are narrow-minded... They are really not being polite... ?However, they still know the shadow of a persons famous tree. The reason for receiving this salary is mainly due to this laboratory, or in other words, to Chang Haonan. "With your words, we feel relieved..." In any case, the matter that the two of them were most worried about was solved. Liu Fangping breathed a sigh of relief and replied: "So...Professor Chang, what tasks are you going to assign to the two of us? During the summer, we might as well look for some literature and study it." You also need to be bolder. Chang Haonan looked at the two people sitting side by side on the sofa like primary school students. He felt a little dumbfounded and did not immediately answer Liu Fangping''s question: By October, or at the latest by January next year, your students will join the group. If they find that even their instructors have little confidence, their enthusiasm will inevitably be affected. Besides, you are all people who have seen big scenes with Professor Yan before, so you should be able to adapt quickly. ?Yao Mengna and the other three are currently only lecturers. They will definitely not be able to take PhD students, but each of them will have a quota for a master''s degree student every year. ?Of course, in an environment like the Torch Laboratory, the distinction between a specific teachers students is not necessarily so obvious. After all, it is estimated that most people submit their resumes because of Chang Haonans name... ??And based on his experience, in the fields he plans to enter in the future, there is no inevitable connection between the level of the students, the degree level, and the level of the tutors. In other words, masters students may also find treasures among them. ?Mathematics is something that a master brings in, and cultivation depends on the individual. If you havent mastered it by the age of 25, then you basically have no hope in this life. You can only switch to applied mathematics. Otherwise, you can only study engineering. ? Even if Chang Haonan is doing it right, if he wants to develop from a purely applied engineering field to a theoretical field, he can only wait for the system to be upgraded. Let alone others. This is how the chain of disciplinary contempt usually comes about. Before was before, now is now ?Lei Zhixing, who had not spoken much just now, scratched his head: Before, when I went out, others focused on Teacher Yan. Now that I suddenly become a teacher, I feel a little... unsure of myself. It is a common phenomenon when students have just stepped out of school and entered society. ?In the previous life, Chang Haonan was like this when he first started working at the Aviation Industry Group after graduation. He was timid in doing things, and it took him about two years to gradually adapt. But now, he doesn''t have two years to waste. It should be caused by a sudden change in the environment, but we are also a university here, and the environment is similar to yours in the past. I believe you will be able to adapt quickly. ?Chang Haonan stood up, came behind the desk, and pulled out a pile of information from the drawer: Teacher Liu just asked about the project, and I happened to have received a suitable one a few days ago. I can help you practice your ability to be responsible for a project alone. Seeing the kraft paper portfolio in Chang Haonan''s hand, Liu Fangping and Lei Zhixing''s eyes lit up at the same time. ? Ph.D.s from Qinghua University were still relatively valuable in the late 1990s. It would not be difficult for them to find a more relaxed part-time job or a lucrative position. As for scientific research, although the conditions have been much better than in the past due to the influence of Chang Haonan in recent years, it is still a relatively difficult job in general. Under such circumstances, they still choose to take up teaching positions in colleges and universities, which shows that they have dreams. ?Now, facing the first project in my career, it is inevitable that I will have some expectations... ??Of course I''m still a little nervous. ??If it is messed up when you come up, it will be difficult to determine your status in this laboratory in the future... Dont be nervous, its just some preliminary situation research. ?Chang Haonan pulled out two stacks of papers from the leather file bag. When Liu Fangping and Lei Zhixing saw this, they quickly stood up and quickly came to the desk and took them with both hands: Hudong Shipyard came to me before and said it wanted to develop LNG ships that match Gas-Transport cargo tanks. However, I couldnt leave at that time, and Torch Group didnt have enough manpower to do this. "This is part of the outline materials and core technical standards sent to me by the shipyard. Let''s take a look at it first, and then look for some literature. When you are ready, go to Shanghai on a business trip to learn about the specific situation. Cai Honggui has actually copied almost half of the car''s data and sent it to the Torch Group, but things may not always be so good every time in the future. Therefore, for this first project, Chang Haonan still plans to let two people work on the data collection part. rise. "yes!" The two of them answered in unison. Right now, our laboratory does not have an administrative secretary, travel expenses and a letter of introduction. You can go and report to the school yourself. In addition, I will use part of the laboratory funds to implement it according to the higher standards for you. The travel standards implemented by public institutions were still formulated in 1996. Ordinary employees receive 15 yuan per person per day for meals and 3 yuan for car allowance. ??When Chang Haonan went to Shengjing to participate in the August 3rd Project, he received this number. At that time, he felt quite nourished. But now in 1999, 18 yuan per day is already relatively abstract, not to mention that this time we are going to a place like Shanghai. Even if the food and accommodation are provided by the Hudong Factory, it is somewhat uninteresting. Hence, each unit will generally be flexible when implementing it. ?Chang Haonan has no shortage of money either in his own account or in his company''s account, so naturally he will not treat others badly in this regard. (End of this chapter) Chapter 748 Preliminary tasks of LNG ships Chapter 748 Preliminary tasks of LNG ships Liu Fangping and Lei Zhixing basically conform to the most traditional portraits of boys majoring in science and engineering. ??Although he was very reserved when he first met Chang Haonan, as soon as he talked about things related to the project, he immediately became more relaxed and his nervousness disappeared. Professor Chang. ?This time it was Lei Zhixing who spoke first: To store and transport liquefied natural gas, the main difficulty in shipbuilding is probably structural safety. ? Mechanics is a broad-based major that can be involved in anything in the material world. Therefore, although he has not studied the shipbuilding industry in depth and the information at hand is incomplete, he can still get some inspiration from projects he has done in the past. ?Chang Haonan did not speak, but stretched out his hand slightly to signal the two of them to continue talking. Liu Fangping, who was a little clumsy just now, answered this time: "Most materials, especially metal materials containing iron elements, have highly nonlinear and even discrete characteristics in their performance changes at extremely low temperatures. Structural properties such as strength, plasticity, fatigue life, etc. change greatly and cannot be Design based on experience with general equipment. "When I was a PhD student in Stiffness, I followed my mentor to analyze an accident involving cracking and failure of a container in a low-temperature liquid nitrogen storage tank. The cause found at that time was an abnormal increase in strain-induced martensite content caused by cold deformation of austenitic stainless steel, which ultimately led to The head section suffered brittle failure. At this time, Liu Fangping drank some water and his complexion returned to normal. Of course, the normal here is the standard for most people. "Although the temperature of LNG is not as extreme as that of liquid nitrogen. According to data, it is about -60C in normal high-pressure storage. However, compared with storage tanks on land, ships in navigation are not a good storage platform. Ships There is a high-temperature environment like the power cabin inside. Under normal circumstances, the temperature difference across the ship can be pulled up to 100C. If we also consider that once the LNG leaks, the low temperature of -168C will directly impact the hull structure. For the safety factor, Require" After saying that paragraph just now, Liu Fangguan''s face, which was originally a little dark, turned quite red. Compared to Lei Zhixing, Liu Fangping''s speech rate is slower, but judging from his eyes and expressions, it is obvious that he is thinking while talking, rather than being at a loss like before on the sofa. Lei Zhixing and Liu Fangping are indeed complementary in many ways. Lei Zhixing next to him was obviously used to this, still looking down at the documents in front of him. When talking about areas that he is relatively familiar with, Liu Fangpings speaking speed gradually became normal from the slow pace at the beginning. Chang Haonan was so frightened that he quickly handed him a bottle of water. For him, it should be very fast. "Professor Chang, I think that before going to Hudong, it is best to conduct some preliminary research on the relationship between temperature changes in the elastic body and thermal stress and thermal strain, especially the structural temperature field function, heat conduction equation and The coupling relationship between the thermoelastic equations of motion can then be used to establish a relatively accurate hull structure model. Otherwise, just by going around for a while, Im afraid you wont gain much. Uhthen take your time? "Hmm... But looking at the meaning of this information, it seems that Hudong Shipyard wants to compete with Bang... er, South Korea''s Samsung Offshore for the dominance of GTT Group''s second-generation cargo tank technology shipping orders. According to them It is estimated that the key time point for this round of competition should be 2002-2003 at the latest. In other words, the plan, or at least the key technology, must be come up before then, and time is not generous..." ??When Liu Fangping expressed his opinion just now, he kept nodding beside him, obviously agreeing with the other person''s opinion, but at this time he frowned, looking troubled: ?Chang Haonan gradually began to understand why Yan Yongnian had to accept two closed disciples at the same time. ?Lei Zhixing shook his head while flipping through the information. But in terms of time...if we want to start research from scratch, firstly, neither of us has systematically studied thermodynamics in the past, and secondly, studying low-temperature topics requires specialized ultra-low-temperature equipment...I am afraid it will not be easy to solve in a short time. Since both his undergraduate and master''s degrees are in science, his project experience is obviously not as good as that of the former who has been following Yan Yongnian since his senior year. However, for the same reason, he is often better at analyzing the essence of the problem: ?Of course, the speaking speed has also returned to its previous slow state. In just a few minutes after getting the information, he had already said more than half an hour before. ?Taken individually, they all have quite a few flaws, but when put together they can produce an effect of 1+1 greater than 2. Chang Haonan himself felt a little sorry that such a pair of live treasures were cut off like this. So he quickly thanked Yan Yongnian in his heart. Then he spoke: For equipment issues, I can contact the China Institute of Atomic Energy. They should have relatively complete ultra-low temperature research equipment. Is this from the nuclear industry system? Lei Zhixing, who was troubled just now, was obviously not used to the new boss''s incredible connections, so he just looked at Chang Haonan in shock. The latter nodded: "In the era of planned economy, our country''s cryogenic engineering has always been studied by the nuclear industry system. Later, although many universities also opened cryogenic disciplines in energy, machinery or physics majors, the systems were not as complete as theirs, and most of them still stayed in theory or experiment. room research." "Moreover, it''s not just equipment. They should have accumulated some achievements in low-temperature materials science in the past, which should also be meaningful for this project." The leader of the committee, with Chang Haonan''s current position in the Science and Technology Committee, it is only a matter of words to use the equipment there. As for the starting point of the research ?Chang Haonan leaned back on the chair: I suggest you start with the theory of thermoelasticity, which mainly includes thermodynamic field theory, thermal conductivity and elasticity. For you, especially Teacher Lei, there should be no particularly high threshold. Even the research direction has been pointed out. Lei Zhixing and Liu Fangping obviously cannot ask for more. After all, they are teachers in Chang Haonan''s research group, and they are not graduate students under Chang Haonan. ??If you still have to feed it into your mouth, all these years of learning will be in vain. Professor Chang, the two of us will move to the dormitory here in Beijing Airlines immediately after we return. Liu Fangping immediately expressed his position: And...if the office is located, it will be with you, right here? Chang Haonan nodded: The new experimental building of our laboratory is still under construction. Currently we can only work in the computing center. Your two offices are downstairs. I will have people clean them up as soon as possible. ?Yun Danfengqing''s answer would be completely different in the ears of other people - New laboratory building! You must know that funds in universities have been tight in recent years. Most laboratories, even at the national level, can only use rooms cleared out by others for renovation. Those who choose to enter colleges and universities these days are basically not materialistic people. But not being material and not liking matter are two different concepts. If nothing else, even if you really focus on academics, better material conditions will undoubtedly lead to higher research efficiency. This point is understood very clearly by Lei Zhixing, who has an engineering background from undergraduate to doctoral degrees. Foreign researchers can get results that they can just do once or twice, but in their group, it often takes days or even weeks to complete because of insufficient equipment or raw materials. Unknowingly, research efficiency has been greatly improved. ?Thinking of this, he was once again convinced that he had made the right choice. Okay, lets try to get on the job tomorrow! After sending Liu Fangping and Lei Zhixing away, Chang Haonan also breathed a sigh of relief. ?Although he is experienced in projects, this is his first time leading a research team. The other three are new lecturers, but he is actually also a new professor. Everyone has little experience and can only fumble around. Senior sister. ?Chang Haonan looked again at Yao Mengna, who had been silent just now: As for your project, I may have to look for a suitable one... The latter waved his hand: Its not urgent. It just so happens that there is still some finishing work on the capacity ramp-up project of Project 11 over at 112 Field. I have to go to Shengjing in the next two months. As long as I have something to do after the start of the next semester. That must be no problem. The fall semester starts in September. More than two months are enough for Chang Haonan to complete a project. Finding a project for Yao Mengna will be a piece of cake. Speaking of ?Yao Mengna changed into a relaxed tone: You just said that we have a new laboratory building, but I have been at school these two days and I dont seem to have seen any groundbreaking for that building? Of course not in the current campus. Chang Haonan smiled and explained: Beijing City has specially approved a piece of land for our laboratory outside the North Fourth Ring Road to build a joint school-enterprise experimental center, covering an area of ??about one hundred acres. Yao Mengnas eyes suddenly widened. (End of this chapter) Chapter 749 Holding Türkiye’s chips Chapter 749: Taking advantage of Trkiyes leverage Outside the North Fourth Ring Road Hearing this description, Yao Mengna was immediately shocked: Isnt that right next to the school? It must be worth a lot of money, right? The Fourth Ring Road sounds like its very outside, but in fact, with the size and population of Beijing, this place couldnt be considered a suburb even in the 1990s. ??If it''s the South Fourth Ring Road, it''s fine. It''s not much different from a large rural area, but the North Fourth Ring Road is still different. Qinghua, Yanda, Kunming Lake, Old Summer Palace... are all outside the North Fourth Ring Road. ?The current Beijing Airlines and the Beijing University of Science and Technology diagonally opposite are just across the Fourth Ring Elevated Road. Uh... no. ?Chang Haonan realized that Yao Mengna''s understanding was obviously deviant, and quickly waved his hand and continued: The land is used exclusively for scientific research sites. Whether its valuable or not doesnt mean much to me. Besides, now that Torch Group is here, money is mainly just a number The turnover of Torch Group is not high, but as a semi-monopoly group, it is not engaged in an asset-heavy industry, and its rate of return is very scary. Thats good too. Its a more remote place, which is suitable for calming down and doing scientific research. Ive always felt that Beijing Airlines current place is a bit too lively, and its not suitable for safety or environmental reasons ?Yao Mengna shook her head: Hence, the treatment of Torch Group, from management to researchers, is generally in line with that of major international companies. It wasnt until later that I joined Teacher Dus research group. When I went there for the first time, I looked at the old and small children who were right next to our teaching building. I really felt like my dream was shattered. ?However, despite what Chang Haonan said, the excitement in Yao Mengna''s eyes still did not diminish. Thats not what I meant. ?Most ordinary people who are not well-informed have at most heard about the expansion of the Outer Ring Expressway, but have no specific idea. Pfftyou alone said all these nice things. "What if...I have to brag about my own laboratory." Chang Haonan laughed directly after hearing this: Furthermore, how many people are jealous of our school land...you say its worthless. ??During the meal after his defense, Tang Lintian directly said outside the Fifth Ring Road because he was directly connected with the urban construction and planning department of the capital city. But when it came to Chang Haonan, he still used a concept that is more familiar to ordinary people. Now, it is not an exaggeration for him to say "I am not interested in money". Furthermore, although they are second-tier state-owned enterprises, state-owned enterprises in this era generally implement entrusted operations, especially after de-administrative restructuring. As long as profits are guaranteed to be turned over, superior units will basically not interfere in the management of the enterprise. ?Beijings Fifth Ring Road is one of the projects guaranteed for the Olympic bid. It is still in the planning process in 1999, and the groundbreaking will have to wait until more than a year later. ?Yao Mengna was teased by Chang Haonan, but she didn''t blush. After a short pause, she continued: "Actually, before I went to college, I always thought that research laboratories were the kind that were located in deep mountains and forests or on isolated islands in lakes, unknown to outsiders. Until my freshman and sophomore years, I I always thought that the school might have that kind of secret laboratory outside the headquarters. ??Although Beijing Airlines is located a little further outside than schools such as Beijing Normal University and Jingcheng Post and Telecommunications near the Second Ring Road, it is not an exaggeration to say that every inch of land is at a premium for its location within the Fourth Ring Road. ?This statement makes sense, but Chang Haonan still explained with a smile: "The outside of the Fourth Ring Road is not the same concept as the outside of the Fourth Ring Road in Yanda... I say outside the Fourth Ring Road because there is only a fourth ring road in Beijing now. In fact, it is quite far. After the fifth ring road is completed in a few years, it should still be It''s outside." Although its impossible to exchange that piece of land for money, the higher the value, doesnt it mean the higher the government pays more attention to us? This is also inevitable. And Chang Haonan actually has nothing to spend money on. ?Chang Haonan sat on the sofa again and sighed softly: Actually, when Beijing Airlines, and of course Tsinghua University and Yanda University, were first established, the surrounding areas were not what they are now. "It''s just that the city is expanding too fast. Just like many airports, it was still a suburb when it was built. It won''t take many years to be included in the urban area. Our new laboratory, if you look at it from a distance now, it probably won''t last much longer. In the coming years, the surrounding area will also develop. Thisisnt the case Yao Mengna had no idea about the outer ring road that Chang Haonan just mentioned, but as an outer ring road being planned, she knew it would be very far away. This time, the latter did not explain anything. ? ? China''s development speed after entering the 21st century is probably difficult to imagine even for today''s senior leaders, let alone ordinary people like Yao Mengna. Is the land approved by Beijing for the Torch Laboratory located further south than the Shahe campus of Beijing Airlines in the previous life? In the future Aobei plate, which is near the Olympic Park, it is just a few kilometers away and has just been developed. In the future, the population will exceed certain A certain super community in a small country ??Moreover, more importantly, as a gathering place for young students and professors, schools actually have strong business potential. ? Even if a university town is really built in a deserted place, the market will quickly bring various supporting facilities and industries to the surrounding area... But you are right. When planning the new laboratory, we can indeed make some visual and auditory separation from the outside world. Although it is impossible to really build it into the deep mountains and old forests, we can refer to it in terms of atmosphere..." Halfway through speaking, Chang Haonan got a little stuck. He originally wanted to refer to the 624th place, but he had been to that place many times. Although it was very high-tech in nature, it seemed ordinary and even a bit old-fashioned. Like Cold Spring Harbor? ?Yao Mengna suddenly intervened. Cold Spring Harbor is more than ten times the size of our land... Chang Haonan has naturally heard of that legendary holy place for biological research: But the style can be used as a reference... Unconsciously, Chang Haonan and Yao Mengna chatted until noon. Originally, the two of them planned to relive the feeling of eating in the school cafeteria together, but just when they were about to go out, a phone call came in at the right time. Yao Mengna glanced over Chang Haonan''s shoulder and found that the red one should be making the sound. Confidential hotline. The big boss is so busy, Ill go down first and wait for you downstairs. After saying that, she signaled to Chang Haonan, then opened the door and left the office. Hello, Lao Song? ??This phone was only updated this year and now has a caller ID function, so he can see that the call is coming from the Torch Group office. Mr. Chang, I asked the legal department and the archives office of the group to check the things you asked me to check before. There are indeed some findings. Do you want to report it on the phone or..." ?Chang Haonan hesitated for a moment: Lets talk about it when I go to the company in the afternoon. This matter is not urgent and can only take a day and a half. The thing he asked Song Jingming to investigate was naturally to see if there were any bargaining chips on hand that could be used in Turkey. While using EU connections to exert pressure may be effective, it is definitely not a good idea. As a result, China and the EU are simply in a state of embarrassment... ? ? Anyway, it is a pure interest relationship. Let alone allies, it is difficult to even be regarded as a comprehensive strategic partner. It is a literal meaning of each getting what he needs. If you ask the other party to help in this kind of thing, you still have to pay something accordingly later. Secondly, due to the existence of Greece, Turkeys entry into the European Union has been impossible from the beginning. It is completely a unilateral dream. If they wake up too early, it may not be a good thing. Hence, as long as he is not being unilaterally blackmailed like in his previous life, Chang Haonan still prefers direct negotiations. If nothing else, judging from the subsequent situation, Turkey can be said to be the most unstable link within NATO. ?Although the Chinese Huskies are divided into different groups, considering that todays world order is still dominated by the United States, retaining such a troublemaker is generally beneficial to China. ?After having lunch with Yao Mengna, Chang Haonan asked Zhu Yadan to send him back to the Torch Group. In fact, he could have called Song Jingming to the school, but after all, he had multiple jobs, so Chang Haonan thought it would be better to separate the laboratory and the enterprise clearly. Mr. Chang. Song Jingming had already prepared the materials. After receiving a call from Chang Haonan, he arrived at the latter''s office within a few minutes. Tell me, what did you find out? Song Jingming opened the information and then concluded: The most direct relationship is that Ankara University, Middle East University of Science and Technology, Bilkant University and Turkish Aircraft Industries (TAI) are direct customers of our companys software business department and numerical calculation business department. Among them, Middle East University of Science and Technology has also sent a special Team, come to us to participate in the first computing business training. "Um." Chang Haonan nodded noncommittally: "Anymore?" Now is a critical period for TORCH Multiphysics to rapidly expand the market, and it is also approaching the turn of the millennium, when everyone believes most in the openness of the Internet. If you use software licenses to pressure people, although it can achieve the effect, it will do more harm than good, especially It also involves non-profit research institutions. TAI is a military-industrial enterprise, so it has a lot of room for maneuver. However, if there is a better way, Chang Haonan still hopes to make a fortune silently. "some." ?Song Jingming nodded and then said: "In October 1996, Ankara announced the launch of a series of domestic production plans for main battle equipment involving the navy, land and air force. However, as you know, they themselves are not very strong in this area, so they mainly use foreign cooperation or The model of imitation production. I know this. The Guardian 1 rocket launcher that the weapons industry previously exported to the other side was copied and produced by them called T300, but this matter should have come to an end. It seems that the Turkish army has no plans to purchase updated models? Before Chang Haonan was reborn, he had heard some rumors that the T300 was the production technology obtained through the Varyag incident, but he had asked Rui Xiaoting, whom he had met before, to check it out, and found that this model had not actually obtained a license. Rather, it was simply copied and had been in service since the mid-1990s. It is true that there is nothing to write about. Its true that its not here, but it is in other aspects. Song Jingming explained: "TAI launched a research and development plan for domestic general-purpose helicopters and attack helicopters the year before last. The cooperation partner was the Italian Agusta Company. Among them, the general-purpose model was AC139, which has about 27 key patents belonging to us. According to the joint research and development that year According to the contract signed at that time, although we cannot restrict the recipients of the Italian sides sale of AC139, we can stop their joint production and technology transfer. "that''s it?" ?This is indeed a good bargaining chip, and the best thing is that Torch Group does not have to directly come forward. But the weight seems to be a bit insufficient. ?Song Jingming shook his head this time: "At least...that''s all that is related to our group. After all, the other party is not a major country, and we have not focused on working there before." Okay, lets do this first. ?Chang Haonan motioned to the other party to leave the information: Go and do your work. (End of this chapter) Chapter 750 I, a central enterprise executive Chapter 750 Me, a senior executive of a central enterprise ??June has passed so peacefully and quickly for more than half. ??Although Chang Haonan is not a member of the preparatory committee of the Aviation Power Group, as the chief planner, there are still many things that need to be completed by him on the eve of the official establishment of the group. For example, preparing for the opening ceremony on July 1st. It is a bit outrageous to say that although Chang Haonan received the appointment a few months ago, this is his first time to visit the office of China Aviation Development. Before the car could stop, Chang Haonan saw a row of staff standing at the entrance of the compound. Although there were no banners or slogans, the posture was obviously ready to welcome him. ?Sure enough, as soon as he got out of the car, one of the tall, square-faced men strode towards him. Chang Haonan saw that this person looked familiar just now, but now he looked up close and saw that it was Lin Zuoming who was transferred to Liming Factory as the general manager just two years ago. ??Due to his outstanding performance in organizing the ramp-up of turbojet 14 and QC/QD130 gas turbine production capacity, he was named the biggest winner in this round of group restructuring and was promoted to executive deputy general manager. ?Of course, this "biggest winner" refers to anyone other than Chang Haonan. As for General Manager Zhu Linyu, he already belongs to the older generation. He was a leading member during the Ministry of Aerospace Industry. He should have retired. However, because there is currently no one with sufficient prestige and qualifications to be the leader, he was invited again. When I came back, it could only be regarded as a smooth performance. ?Lin Zuomings exaggerated progress speed is partly due to personal efforts, but Chang Haonans help is definitely indispensable. ?However, Lin Zuoming is obviously very familiar with him. People who don''t know may think that the two have been close friends for a long time. Of course, as a manager, this is indeed an ability. ?Because the schedule is very tight, the building is not newly built, but is just expanded based on a former aviation industry property. ??He was able to turn the two factories in Chengdu and Liming from losses to profits in his previous life, so he must be quite capable. General Manager Zhu happened to be going to report to the superior leaders on the progress of the groups preparation work today. He couldnt come in person, so he appointed me to bring someone to welcome Mr. Chang. The two shook hands: While speaking, the two of them had already stepped onto the marble steps in front of the building, but Lin Zuoming did not walk in immediately. Instead, he turned back at the door and looked at the courtyard in front of him. After the handshake ended, the two walked side by side along the main road towards the headquarters building not far away. After I received the transfer order last month, the first thing I did was to ask other team members. When I saw your name, Mr. Chang, on it, I instantly felt at ease..." Not to mention anything else, the previous soft abrasive grinding process and the ion plating production line later acquired from Russia almost helped him clear most of the technical obstacles in the process of increasing production. "me too." The headquarters of the new group was chosen between the West Third Ring Road and the West Fourth Ring Road. As for the layout of the courtyard, it is similar to that of most state-owned enterprises of this era, quite satisfactory. I have to say that Lin Zuoming really doesnt have much to say about other peoples preferences. As soon as he finished speaking, a row of people standing next to him began to applaud in unison: Originally, Mr. Zhu meant to hold a small ceremony, but I know you dont like these scenes very much, so I kept it simple... Actually, Chang Haonan has only met Lin Zuoming about two or three times in this life. After all, he was transferred from Rongcheng to Dawn relatively late. Now Chang Haonan is completely adapted to this kind of battle. He just smiled and replied enthusiastically: "In the past two years at Liming, Mr. Lin has more than doubled the production capacity of several key models, and he has also freed up spare capacity to ensure the trial production of the turbofan 10 prototype. It has also been a great help to us front-line R&D personnel. I am looking forward to it." Looking forward to your future cooperation. Therefore, after distancing himself from the others behind him, he boasted without any psychological burden. Mr. Chang, looking forward to the stars and the moon has finally brought you here! From Shengjing to Beijing, the two of us can always work together to work together. Its fate! ?Of course, as a central enterprise, the size of the headquarters is much larger than that of Torch Group. ?Standing here, I saw that the door that the car had just driven in had become much smaller. As the chief planner, what do you think of our new groups facility planning? If adjustments are needed, it should be too late now. ?Lin Zuoming said to Chang Haonan next to him. The latter was stunned As a second-tier state-owned enterprise with a limited scale, Torch Group is located in an office building that does not belong to the group itself. But the Aerospace Power Group is different. Therefore, the moment he heard this sentence, Chang Haonan finally had a consciousness of being a "state-owned enterprise executive". Glory, power. ?At the same time, there are responsibilities. Even if we do not take into account suppliers outside the system and the promotion of the entire Huaxia industry upgrade, there are hundreds of thousands of employees within the group alone. Equivalent to tens of thousands of households. Planning, this is enough. Chang Haonan took a deep breath: Lets go, lets go in first. The offices of the group leaders are uniformly located on the 9th floor. Speak up, Mr. Lin. After stepping out of the elevator, there was a huge sand table opposite. Chang Haonan stopped and observed it for a while, and then asked with some curiosity: I remember that the headquarters of Aviation Industry Group is outside the East Third Ring Road. This is the West Third Ring Road. Did we choose a symmetrical location? Actually, this was meant to be a bit of a joke, but Lin Zuoming nodded very seriously: Yes, it means that our aviation power group and aviation industry group will serve as two wings to support the take-off of the countrys aviation industry. ?Chang Haonan smacked his lips. Its quite reasonable. Lets go and have a look at your office. ?Lin Zuoming led Chang Haonan through the long corridor. Because there are rooms on both sides, it looks a bit cold. "Except for the general manager, the offices of the rest of the team members have the same specifications, but the location and interior layout are slightly different. After we discussed it, we decided to give you the innermost one facing the south. It has good sunlight and is quiet. Someone can come up. You dont have to go through your door to find us. While talking, the two of them had already arrived at the door of the last office. ?Chang Haonan opened the door. Indeed, as Lin Zuoming said, the environment inside was quite good. ? And all office supplies are available, from computer printers to filing cabinets and file bags. There is even a movable blackboard specially placed inside. When I was in Shengjing, I heard that Mr. Chang sometimes likes to summarize your ideas on the blackboard, and I specially asked someone to do it. Chang Haonan used the blackboard at first, with the intention of summarizing the ideas provided by the system himself. However, as the system level got higher and higher, there was no need to do this anymore, and the main purpose became to explain knowledge to others. Otherwise, it would be difficult for most people to follow his ideas. ?This is the one in the office, and Im afraid there are very few opportunities to use it. ?However, the other person also had good intentions, and he nodded to express his gratitude. The two of them sat down on the two sofas respectively, and Lin Zuoming finally got to the point: Mr. Chang, there are still some things we need to discuss with you regarding the group establishment celebration on the 1st of next month. After finishing speaking, he glanced at Zhu Yadan who had been following Chang Haonan. Under normal circumstances, let alone the deputy general manager, even Zhu Linyu cannot be assigned a separate private security guard, so Lin Zuoming does not know the latter''s specific origins. Comrade from the Ninth Security Bureau, its okay, just tell me. Chang Haonan waved his hand. ?Lin Zuoming sat up straight almost subconsciously. Awe-stricken.jpg ?There are not many people who can find themselves as full-time security guards. ??However, the number of people who can make the Ninth Bureau take responsibility will probably not exceed double digits nationwide. Mr. Zhu hopes that we can take the opportunity of the groups unveiling to include some links that are highly related to technology in the celebration ceremony. (End of this chapter) Chapter 751 Officially appointed chief planner Chapter 751 Officially appointed Chief Planner Technology-related links Chang Haonan lowered his head and thought for a moment, and roughly understood why Lin Zuoming was a little anxious today. Although the group''s leadership, except for one chief accountant, all have technical backgrounds, everyone except himself has been completely transferred to administrative positions and is no longer responsible for front-line R&D work. This kind of thing naturally has to be handled by him, the chief planner. Come take charge. Can you please report on the progress of the turbojet 6D and turbofan 10? The progress of these two models is relatively optimistic, and I am relatively familiar with the situation. ?Chang Haonan first thought of the simplest way. "Um" ?Lin Zuoming hesitated: If there is really no other way, its not impossible. Mr. Chang, you have enough influence to go up and make a report. "But what Mr. Zhu means is that after all, the previous models were established under the framework of the Aviation Industry Corporation, and there is no problem in using them for publicity later, but No. 1 is the unveiling ceremony after all, and we still hope to have something completely our own. " Chang Haonan frowned and thought to himself, we are a newly established group that has not even decided on a logo. How can we get our own things? ?But no matter what, as the leader Zhu Linyu said something, he must still respect it, so he had to bury his head and continue to think hard. Chang Haonan shook his head, but it was very difficult to explain, so he finally said directly: Well, how about I write a plan after I go back and submit it to the group leadership team for a joint decision? ??Lin Zuoming, as a veteran of the aviation development system, naturally understood what Chang Haonan meant immediately, but there was a somewhat struggling expression on his face: After Chang Haonan reported the basic plan for the future to his superiors, several secretaries in the office have already completed the preparation of the group''s development plan. Im not talking about the specific model ??Although this statement was not yet popular around the millennium, the meaning is still easy to understand. Mr. Chang, its not that I dont believe in your ability, its just that there is less than a week left before July 1st. If we want to list the models, we must at least establish the project first, right? This time is definitely not enough... Lin Zuoming''s eyes flashed with hesitation for a moment, but then he thought about Chang Haonan''s various performances over the years, as well as some rumors that although he could not verify, were highly credible, such as the other party having some direct channels to Tianting, etc. Wait, and finally nodded: Thats good, but at least a buffer time of about two days must be left for the preparatory committee, so in terms of time "What I mean is, why not announce a few priority development models at the ceremony? Firstly, there have been many ups and downs in the restructuring of state-owned enterprises in recent years. When our new group was first established, employees will inevitably be panicked, and we need to inject some confidence into them. Secondly, It is also a gesture to the leaders to prove our determination to operate independently. Then we can only draw cakes. The history and honor of the Aviation Industry Corporation of China have been handed over to the Aviation Industry Corporation of China. We are actually a new enterprise. If we must find our own things, we will definitely have no hope of reporting on results. Chang Haonan quickly denied: The planning document is too long, even the abstract is several thousand words long, and the content is too specific and detailed. Most of the people who attended our unveiling ceremony are not from front-line technical backgrounds. Reading it to them is meaningless and annoying. After a while, Chang Haonan raised his head again and slowly said: You mean to read the contents of the planning document? The fiery July is coming in a blink of an eye. Dont worry, these things have been planned in my mind, I just need to write them out. ?At nine o''clock in the morning, more than 500 people, including superior leaders, guests from sister companies, group headquarters agencies and representatives from various factories, gathered in the headquarters compound. Prioritize the development of models ?Chang Haonan replied with a smile. "Well" On the 1st, the unveiling ceremony and founding meeting of the Aviation Power Group were held as scheduled. At the top of the steps at the entrance of the building, a podium covered with red carpet has been set up. ?As the passionate march slowly started to play, Kong Fenye, the host of the ceremony and the head of the publicity department of the Aviation Power Group, slowly came onto the stage. Dear leaders, distinguished guests, and distinguished comrades, welcome to the establishment celebration and unveiling ceremony of China Aerospace Power Group After a welcome speech, Kong Fenye first began to read out the members of the group leadership team approved by his superiors. Comrade Zhu Linyu, general manager and party secretary of China Aviation Power Group! Comrade Lin Zuoming, Director, Deputy General Manager, and Deputy Secretary of the Party Committee of China Aviation Power Group! Director and Deputy General Manager of China Aerospace Power Group Chief Accountant, Deputy General Manager There are a total of 7 team members finally determined. Every time Kong Fenye reads a name, the corresponding person gets up. Chief Planner, Comrade Chang Haonan! Finally, Kong Fenye read out Chang Haonans name. Since he currently has no other leadership position except chief planner and is also the youngest, he is naturally ranked at the bottom. ?Chang Haonan took a deep breath, stood up and bowed slightly to the comrades in the audience. The leaders in front had naturally known about the relevant decisions of their superiors for a long time, but even so, many people showed disbelief when they saw Chang Haonan standing up. After all, knowing is knowing, and the impact of seeing it directly is incomparable. As for the employees below, especially the grassroots employees, that is not to mention. Ill go...Is that Mr. Chang? There is no shortage of front-line employees in the audience who have directly worked on projects with Chang Haonan. Mr. Chang in charge of the turbofan 10 project? Otherwise, who else could it be... Now Ive really become Mr. Chang... "But I remember...Mr. Chang is not even thirty yet, right? He has already joined the leadership team?" I am already a chief designer when I am not even thirty yet The whispering below was not too loud, so the host on the stage continued as usual. Next, I would like to invite Comrade Zhu Linyu, general manager and party secretary of Xia Aviation Power Group, to speak! ?Zhu Linyu was already seventy years old, but he was still in good spirits. He came to the stage in a few steps: Comrades, I am honored to serve as the first general manager of China Aerospace Power Group and leave my name in the development history of China Aerospace Engine... First of all, please allow me to briefly review the development process of my countrys aviation power from scratch... " The establishment of the Aviation Development Group marks the arrival of a new era in Chinas aviation industry. Here, I would like to propose three suggestions to all comrades. First, we must unify our thinking, act quickly, and grasp the new direction of the reform and development of Aviation Development. Its about hard work and taking the initiative Zhu Linyus speech mainly focused on telling stories and expressing his opinions. To sum up, in the past, our aerospace engineering project could only be used as a dowry for the aircraft project, but this model no longer meets the requirements of the times. Now we finally have the opportunity to make the decision, and we must make some achievements to show them. So much. There is not much useful information. ??If it weren''t for the open air environment, many people would have started to doze off. After a long speech, Zhu Linyu deliberately paused for a second. One second may not seem like a long time, but in the midst of a coherent speech, the effect of a sudden silence for a second is actually no less than that of a thunder explosion in a quiet situation. Sure enough, the attention of everyone in the audience was immediately attracted again. Next, I am going to hand over the microphone to our chief planner and chief designer of the Taihang Engine Project, Comrade Chang Haonan, and he will announce several important decisions of the group! Amidst the waves of applause, Chang Haonan stood up, left his seat, and walked behind the makeshift podium. Compared to Zhu Linyu, his opening remarks were very brief. After thanking the leaders and the group in a few sentences, we went directly to the topic: "When the Turbofan 10 project was re-established, I once said that this model will not only power my country''s two third-generation fighter jets, but more importantly, it will serve as a training ground for my country''s aerospace engine industry and greatly improve the aviation engine industry. There is a problem of insufficient number of researchers and insufficient experience. Now, more than two years have passed, and I can confidently say that the large-scale military training has fully achieved the expected results! At this point, he paused for a moment. ?The hundreds of people below also understood and applauded together. Nearly ten seconds passed before Chang Haonan raised his hands, pressed them down to signal for silence, and then continued: Therefore, after collective research and decision by the leadership team, after the establishment of the group, three key development models will be established. ?Chang Haonan''s tone suddenly slowed down: First, it is a third-generation marine gas turbine using a turbofan 10-core engine, which is planned to provide power for a new generation of domestically produced large and medium-sized main battleships. Second, it is a 1,600kw turboshaft engine, which is planned to replace the currently imported TV3-117 turboshaft engine as the power for a new generation of general-purpose and future armed helicopters. Third, it is a large bypass ratio turbofan engine that also uses a turbofan 10-core engine, and is planned to be used in the future new generation of domestic mainline passenger aircraft! (End of this chapter) Chapter 752 Three major models, reassurance for grassroots comrades Chapter 752 Three major models, a reassurance for grassroots comrades After listening to Chang Haonan''s speech, almost everyone from the employee representatives to the leaders attending the meeting had unexpected looks on their faces. ?Its just that the two groups of people have different unexpected points. The leaders, as well as the guests from the fraternal units, mainly think that these guys are quite courageous. In fact, superiors have considered that the Aerospace Power Group is a newly established enterprise, and most members of the leadership team lack experience in large-scale organizational management, and have not set rigid development goals within the framework of the Ninth Five-Year Plan Even if most of the factories under the group existed in the past, changing the organizational structure is a very troublesome task in any era. It is impossible to say that if the group is listed today, it will be able to operate with the same efficiency as in the past tomorrow. . ?Furthermore, most of the group''s current efforts are concentrated on the Turbofan 10 project. Hence, the development direction of these three models is actually an internal decision of the group. In other words, its the intensity you give yourself. Even Ding Gaoheng didnt know about it before. Although Chang Haonan did not guarantee any timetable in his speech, and did not even mention the specific model name, since it was said in such a formal occasion, it was equivalent to drawing a line. Turbine shaft/turboprop engine, basically only Zhuzhou has relevant experience, so the 1600kw turboshaft engine will most likely fall into their hands in the end. Whats more important is that due to the massive layoffs in recent years, many dual-income families now have only one pillar left, and it is difficult to maintain the familys life financially. This is even if there are financial transfers within the group. Such a big gap is not only difficult to accept psychologically. You mean the iron rice bowl? At this time in 1999, the shadow of the mass layoffs is still hanging over our heads. And its still a subsidy that accounts for more than half of the income. After the restructuring of the head office, the group will in principle be responsible for its own profits and losses. Although the group''s structure is newly built and its foundation and resources are not sufficient, the future is definitely bright. ?Especially when leaders come to inspect in the future, if I ask you about the development status of the three models you mentioned before, if you answer that there is no action at all, it will be somewhat unreasonable. The five major head offices have now completed restructuring, with the aviation system in the most special situation. It is equivalent to losing a subsidy. Although the two newly born groups are divided into two equal parts in terms of structure, any veteran employee who has worked in the head office for a long time will know that the units in the aviation development system are different in terms of investment, revenue capacity and remuneration. It is far lower than that of the main unit. Except for the 606 Institute and Liming Factory in the past two years, which are slightly better, the rest are basically at the subsistence level. ?Now that the aerospace system is independent, it is naturally a good opportunity for leaders to improve their personal status and expand their performance stage. Once peoples hearts start to wander, it will be difficult to suppress them. At this time, the three new projects announced by Chang Haonan on stage just served as a reassurance - But for the people working below, they are more worried than happy. ??Although the country cannot really sit back and watch such a large military-industrial group collapse, and will certainly provide necessary support, this does not bring any sense of security to ordinary employees - What if there is a cost reduction and efficiency increase? Even if I am not laid off, can I still maintain my original salary? ?In particular, the Turbofan 10 project is progressing extremely smoothly. The project research and development work is about to end, and some of the personnel previously seconded to Shengjing will soon return to their original units. For them, if there is no project in hand after they return, they can only receive a basic salary based on their level. For employees, especially frontline technical staff representatives, the feeling is more of a surprise. Marine gas turbines, based on the experience of turbojet 14 aeroderivative combustion, will definitely continue to stay in Shengjing. As for the large bypass ratio turbofan, although it also uses the core engine of the Turbofan 10, considering that only Haojing has copied or licensed the production of large and medium bypass ratio engines, it is most likely to succeed in the competition. Of course, there are far more secondary factories under the Hangfa Group than these, but the rest, such as Rongfa and Guifa, are mostly historical issues arising from the third-line construction period and are backups of several large factories. The research and development capabilities and scale are insufficient, but on the plus side, it is easier to make a living. It has a very close relationship with the original unit. If others eat the meat, they can drink the soup. For example, the production of the entire turbojet 13 machine and some parts of the turbojet 14 has been entrusted to Liyang Group. The ongoing localization project of the D436 engine also has some accessories such as engine brackets and pods. The parts were assigned to Rongcheng 420 Factory for production. ? There are also some institutions like 624 that serve the entire group, and any project of a brother unit is inseparable from their participation. In short, most of the representatives from the units sitting below have found parts of it that are relevant to them. Even if it is not directly benefited, it can at least be seen that the unit is in a prosperous state. There must be confidence. ??When Chang Haonan gently put the manuscript in his hand on the podium and raised his head to look at the hundreds of participating delegates in front of him, warm applause erupted again in the open-air venue. And this time, it was much more lively than before, even more than at the beginning... ?It wasnt until Kong Fenye walked onto the stage again while applauding that the courtyard gradually became quiet again. Xiao Chang, you gave us a big surprise. ?After returning to his seat, Ding Gaoheng, who was sitting on the leadership bench in the front row, turned back and said with a smile: It seems that in addition to those written in the development plan, you should have more detailed plans? Director Ding, the surprise just now is actually for the frontline workers. ?Chang Haonan leaned his upper body forward slightly and lowered his voice: "Before the Chinese New Year this year, I talked with some comrades workers in Shengjing and found that they generally had concerns about the independence of the Hangfa Group, mainly in terms of remuneration. They were worried that there would be no projects, no tasks, and they would be laid off. spread to." "Even the Liming Factory is in the same situation. After thinking about it, other second-level units will only be more serious. So when we had a meeting with Mr. Zhu and others a few days ago, we decided to take advantage of this opportunity to establish three key development areas. The representative model, firstly, expresses determination, and secondly, it also makes comrades feel at ease. After hearing this, Ding Gaoheng was silent for a while thoughtfully, and then said: Then when the group study documents are distributed, you must remember to emphasize this part with the leaders of each unit. Otherwise, according to my experience, front-line worker comrades will rarely pay direct attention to your speeches. ??Although Ding Gaoheng has been the director of the Science and Technology Commission for many years, he also came from a front-line technical position in the past and has a deep understanding of the situation at the grassroots level. Dont worry, Director Ding. Chang Haonan replied: Studying documents is one aspect. This time we also specially selected employee representatives from each factory, just so that they can publicize the groups policies in this area through word of mouth when they go back. ?This time Ding Gaoheng just nodded and showed an approving look. "but." ?Chang Haonans tone changed slightly: "I do have some more detailed ideas during this period, but it''s not just about these three models... uh... actually it''s not just about aviation engines." ?At this time, the host Kong Fenye announced that the unveiling session had officially begun, interrupting the two people''s whispering. The seven main leaders of the group and the three senior leaders sitting in the first row of the rostrum stood up one after another and came to both sides of the plaque covered with red satin. ?The signboard of a large central enterprise is of course different from the one in a previous laboratory. It is three meters high and cannot be opened with just two hands. ? And if you just pull it off by pulling it off, it will be difficult to arrange the positions of up to 10 people, and it is not very elegant. ?Hence, there are two red ribbons extending from the top of the card. Pulling **** both sides can make the satin covering them fall off. Then now, I declare! ??Kong Fenye also took the microphone that was originally placed on the small podium in his hand, and then walked down a few steps: China Aerospace Power Group, officially unveiled! ??As he waved his arms, the red silk cloth slowly fell down in the wind, and at the same time, two firecrackers exploded on both sides. Comrades from the Propaganda Department raised their cameras in the distance and recorded the moment when the plaque was unveiled. A new era of China''s aerospace engine industry has begun! (End of this chapter) Chapter 753 aircraft carrier expert Chapter 753 Aircraft Carrier Expert At almost the same time that Chang Haonan officially took up his post as chief planner, ?Northern shore of the Black Sea, Nikolaev. ?Wu Yifan, who has taken off his Buryat attire, is sitting in an inconspicuous Peugeot 605 car, looking out the window at the scenery of the shore that is constantly sweeping back. Fuck, its better to stay in this peaceful place and feel comfortable He opened the car window a crack and felt the breeze blowing on his face. Since arriving in the Balkans as a construction contractor in late April, he has been having trouble sleeping. ?Although the Allied operation has come to an end, the complex ethnic conflicts in the Balkans will not disappear. What''s more, among the so-called "peacekeeping" forces, there are probably only two or three countries that have no intention of deviating from each other. Therefore, the Pristina area that should have been set up as a demilitarized zone probably maintains less than two The lull in the worship service was quickly filled with all kinds of "homemade" weapons of unknown origin. ?Even Lao Wu himself was asked to carry a batch of assault rifles that had been dismantled into parts in a convoy transporting construction materials. Since the beginning of May, the two ethnic groups, who have already been at odds with each other for a long time, have naturally continued to exchange opinions fiercely on the streets, which even once spread to the camps under construction. ?Until a few days ago, he flew back to Odessa with an An-26 transport plane, and then rushed to Nikolayev by land almost non-stop. In contrast, although society has fallen into chaos and economic development has stagnated, things are still relatively calm in Ermao. You didnt really smuggle gold there, did you? Boss, you wont Angkor, we dont have to pretend to be Buryats this time? ?Yan Yong explained. ?Having stayed in the Balkans for more than two months, he suddenly felt a little uncomfortable when he suddenly returned to his original refreshing look. "Let''s not talk about whether this is true or not. Even if it is, it is gold. It is impossible for people to find me, an outsider who has never been to the Balkans before, to do it. I have nothing to do with it. I am really not afraid of it being stolen. " ??Yan Yong glanced at Wu Yifan next to him with some doubts. In fact, he still doesnt know what the latter is doing in the Balkans, but as a person with a normal IQ, it is not difficult to infer from some details: Lao Wu breathed a sigh of relief and burst into laughter without holding back: This time Im going to meet some old friends Ive known well before, and the identity of the Buryat man has been used too frequently recently. In addition to contacting the Balkans, I have to try to use other identities in the future. What are you thinking about I had nothing to do while staying there during this period, so I asked around and heard that before the war started at the beginning of the year, a batch of gold was smuggled to other countries for storage Lao Wu rolled up the car window to reduce the amount of wind coming in from the outside, and then replied: Fortunately, Yan Yongs next guess was completely free: ? Yan Yong''s slightly hesitant tone made Wu Yifan''s heart immediately jump. ? Yan Yong, who was driving, slightly turned down the volume of the car CD, and then asked. Are you going to change your identity again? ?Wu Yifan himself was confused. "Need not." "ah?" Hearing what he said, Yan Yong also felt that his conjecture just now was a bit outrageous, and shook his head mockingly. ?Of course, he couldnt have imagined that the actual situation was actually much more outrageous The key technical equipment for shooting down stealth bombers was sent out through their hands. Ill see if I can get two Tajik or Uzbek passports over time. Lao Wu breathed a sigh of relief and rolled down the window again. By this time in 1999, although the major countries of China, Macao, Macao, Mao, Mao, Mao, Mao and Mao could not completely escape the chaos caused by the disintegration of the alliance, some order had been restored compared with previous years. At least it is very difficult to create a person as it was in the past. But the situation in Central Asia is still similar to previous years, and there is a lot of room for maneuver. As he was talking, the car had already arrived in front of a grand gate. Black Sea Shipyard. Even before entering the factory, the two of them could vaguely see the towering marine crane in the distance through the car window. It is not difficult to imagine that a decade or so ago, there was a bustling construction scene here. However, now there is no one left. Even on the cement pavement at the gate, there were several obvious cracks, and a few strands of weeds poked out from them, swaying strongly in the wind. A sentry with a gun came over, but he was obviously not alert and did not even hold the gun in his hand. ?Wu Yifan handed over the pass he had prepared long ago, and was quickly let through smoothly. They had been here last year. They were planning to try to buy the half-finished aircraft carrier, but in the end they found out that they were fighting against their own family, and there was not enough time to prepare materials, so they had to give up. But they came for another purpose this time. After entering the gate, Lao Wu took out his mobile phone and quickly made a call. Lets go directly to the outfitting dock. After ending the call, he said to Yan Yong next to him. ??The Nikolayev Shipyard is very large, almost the same size as a common small town in Eastern Europe, so the two of them walked around and spent more than ten minutes before finally finding the place Wu Yifan mentioned. ??A gray-haired old man in a suit was standing on a high platform, looking at several semi-finished ships docked on the shore in the distance. The most conspicuous among them is naturally the Varyag. Since it has been soaked in seawater for nearly ten years, the surface of the ship''s hull has obviously been covered with a layer of rust. ?Of course, for a giant ship of more than 60,000 tons, this will not affect the hull itself, as long as the subsequent rust removal is completed. However, the mottled appearance reflected by the sea water seems to reflect the end of that superpower. Valery Vasilyevich, its nice to see you again. Lao Wu pushed out the passenger door and strode behind the man. Valery Vasilyevich Babich, a senior engineer at the Black Sea Shipyard, participated in the development and construction of all two Type 1123 and seven Type 1143 aircraft carriers during the Soviet period, including the three Type 1143.5, 1143.6 and 1143.7 aircraft carriers. Project leader for aircraft carriers. The two of them had been in contact as early as when Old Wu Gang came to Ermao. After he officially received the "Friendship Plan" from Chang Haonan, the first thing he thought of was this senior aircraft carrier designer. Hello, Wu. Babic came up and shook hands with him: Are you also here to take delivery of this aircraft carrier? ??Babic looked at the Varyag in the distance again, his eyes filled with complex expressions. For him, the last three Type 1143 aircraft carriers are like his own children. However, No. 1143.5 was basically completed when it was dismantled and was eventually sailed to Russia. However, No. 1143.7 was only about 30% completed and could not even get off the zero slipway. It was finally dismantled by the West through a small trick. Only the last one, 1143.6, remains on the shores of the Black Sea, where it has stayed for 8 years. ?At the time when the alliance had just disintegrated, Babbage was also running around, thinking about completing the ship. But as Factory Director Makarov said, he quickly realized that this was completely impossible after losing the entire alliance''s industrial system. Therefore, seeing that the ship was about to be taken away by the Chinese, while he was reluctant to part with it, he was also somewhat relieved. ??Although the buyer said that he wanted to build a marine amusement park, this was obviously a very half-hearted excuse. If you buy it back, 80% of it will be continued construction. ?Besides, to put it another way, even if it really becomes a maritime paradise, it would still be better than the Ulyanovsk being dismantled in the end. No, the person who bought this aircraft carrier has nothing to do with me. Wu Yifan shook his head: I came here to take away something more valuable. Something more valuable? ??Babiqi glanced at Old Wu, who was slightly shorter than him, with some curiosity: You mean the cruiser? Or the two hovercrafts? The cruiser he is talking about is the fourth ship of the Type 1164 cruiser. 96% of the overall project has been completed. Compared with the Varyag, which needs to go back for renewal, that ship can even barely sail away after repairing it locally. . As for the hovercraft, naturally they are two large European Bison-class hovercrafts that have also been 90% completed. The Greek Navy is currently interested in purchasing them. But after asking, he denied it himself before waiting for the latter to answer: No, they cant be more valuable than the Varyag ?Wu Yifan also smiled after hearing this: Of course Im not talking about those old ships. In fact, he did ask through Chang Haonan before whether the superiors were interested in several other unfinished ships at the Black Sea Shipyard. But in the end the answer was negative. In terms of immediate combat capability, China has already ordered four Type 956 destroyers, of which the first two have been completed and will soon return to China to be commissioned. China is not in a hurry to spend a high price to buy another one. Although the combat capability is stronger, there is no technical substitute for it. Poor main battleship. As for large hovercrafts, there is indeed a demand in the country, but when sea control cannot be guaranteed at the moment, it is obviously not a top priority, and there is no need to compete with the Greeks. Babic did not reply, but just looked at Wu Yifan, waiting for his next answer. Valery Vasilyevich. After a brief pause, Wu Yifan continued in a slightly bewildering tone; "If I say, I have an opportunity here that allows you to complete the aircraft carrier yourself...are you interested?" (End of this chapter) Chapter 754 Pack up the Black Sea Shipyard and take it away Chapter 754 Pack up the Black Sea Shipyard and take it away We are all smart people. Furthermore, Babbage knew Wu Yifans identity. ?Although I dont know the specific details, at least I know that he is actually a Chinese ?This is also easy to understand. You want to abduct others into the country. Unless you use the traditional craft of sap and sack, you have to make friends before you can start talking. Besides, this kind of thing cannot be hidden. You, a Buryat, have made great efforts to hire someone from Ermao to work in China... What about the liar? The spirit of internationalism is not like this either. Therefore, when Lao Wu said the sentence just now, he already understood the meaning of it. ??This is because he wants to take himself away with the aircraft carrier. But this is only one aspect. ??The Russians may still be able to produce large submarines and icebreakers, but that''s not what they want. ?Looking at Babic, who lowered his head and remained silent, Wu Yifan quickly realized his concerns. The amount of information contained in this sentence is huge. He has worked in Nikolayev for nearly 40 years, and has dedicated most of his life to this land on the Black Sea. Now he suddenly has to abandon it all and go to a foreign country where he is unfamiliar, and he also faces language, Many issues such as living habits, job security, and separation from loved ones... "Dear Valery Vasilyevich, for senior professional and technical talents like you, we do not simply send you abroad through labor dispatch and ignore it, but we also have a complete set of accompanying security systems. Ensure that the living conditions of you and your colleagues will not be the same as before the dissolution of the alliance. The rest are China and India... To the Chinese people, the Varyag was said to be 60% complete, but in fact, someone sneaked in and damaged the power cabin equipment. Shipyard employees have been on the lookout over the years, and the pipelines and cables are basically rotten. There were so many problems, some of them even required re-cutting the deck to deal with them. So much so that Babics eyes, which were full of hesitation just now, suddenly turned curious. After the disintegration of the Alliance, it will be impossible for any Union Republic to build an aircraft carrier alone in the foreseeable future. Although the Chinese people who won the bid in the end bought back a large amount of technical information, anyone who has ever done a project knows that holding the drawings in their hands is completely different from having a master carrying them hand in hand. concept. ??Old Wu turned around and looked at the warship docked in the distance. As he walked towards it, he changed the subject and asked: Can we go to Pier 1 and have a look now? ?However, even as a technician, he knew that he should not be too eager in this situation, so he was not in a hurry to speak, but waited for Wu Yifan''s next words. Salary and other things are secondary, the key is "your colleagues". Normal people know how to choose. Meaning that someone has already passed by before? ?Then, the latter was even more of an old fox in this regard. After arousing Babbage''s interest, he directly played hard to get. From a life and emotional perspective, Babbage is still a little hesitant. From a work perspective, this is indeed the best solution. Although countries that may build aircraft carriers, whether Britain, France or the United States, have extended an olive branch to him, it is obviously impossible for him, who still has a Soviet passport, to intervene in the production process of warships. For Babic himself, going to China is almost the only way to realize his dream. They are now at the edge of the outfitting dock and can see the panoramic view here. Pier 1 is where the Varyag is outfitted. "Can." The sudden change of topic made the old comrade stunned for a moment, and he nodded immediately: Our factory is still in the process of handover with Luchuang Group. If we want to board the ship, we still need to obtain the other partys consent, but if we just stroll around the dock, its still fine. Lets go, then get in the car? ??Wu Yifan turned around and got back into the car parked not far away with Babic behind him. Logically speaking, external vehicles should not be allowed to enter places like the interior of the outfitting dock. ?But at this moment, except for the sentry at the door who looks a little bit like that, no one is paying attention to it. ??Babiqi, who was sitting in the back seat, just brushed his face and was let through without any hindrance. Damn it, this boat is really big... Yan Yong, who didnt need to pretend to be a foreigner, subconsciously sighed directly in Chinese. They had tried to take pictures of the Varyag before, but it was basically a temporary act and they had never observed the ship at such a close distance. ??And just looking at it from a distance, it is difficult to experience the sense of oppression brought by an aircraft carrier. Mainly Soviet-style ships tend to be designed with low freeboard, so the dock height is correspondingly low. ?In this case, for an aircraft carrier with ultra-high freeboard, hull flaring, and ski-jump deck, you almost have to raise your head to the sky to see the whole picture. ? Even a larger container ship or oil tanker would be hard-pressed to bring such a feeling of arrogance. ??Babic couldnt understand Chinese, but even just from the tone and emotion, he could guess what Yan Yong was sighing about. This is only a medium-sized aircraft carrier. If the 80,000-ton Ulyanovsk can be built as usual, it should be in service by now... It will definitely be much more spectacular than this ship. Unfortunately, the only one left with large aircraft carriers now is the U.S. Navy ??Wu Yifan was keenly aware of the regret and loneliness in Babbage''s tone. I think there will be a chance to see it after the Varyag. ??As a tycoon, of course it is impossible for him to know what the Chinese Navy''s future plans are, and he is not even sure if there are any other project plans besides the renewal of the Varyag. But at this time, the focus is obviously to play the emotional card according to Babbage''s wishes. As for whether the content of the card is true or false, it is secondary. Sure enough, the other party finally lost his composure. Thats right, Wu. ??Babiqi moved his eyes from the nameplate that read "" to Lao Wu: You just said, my colleagues? Have engineers from the Black Sea Shipyard already gone to China? Lao Wu has been waiting for this question for a long time, but in order not to appear too deliberate, he lowered his head and thought for a while: The Friendship Plan is for the entire CIS, and I am only one of the people in charge, so I dont know the whole situation. In fact, the main executor of the friendship plan is himself. This sentence is just a wave of bluff to show that we have recruited many Soviet-era technicians, and you dont have to worry about being alone when you get older. Following that, he continued: However, as far as I know, comrades from Antonov Group, Ivchenko-Progressive Design Bureau, Azov Steel Plant, Voroshilovgrad Diesel Locomotive Factory and other units have participated in the friendship program. , and some of them have even started working in China. This is another typical concept of sneak exchange. ?During the Soviet period, these units were all regarded as nine enterprises under the Ministry of Defense Industry. Just like the several major military-industrial groups under the Commission of Science and Industry, they could be said to be "colleagues" with each other. ?But now this system has long since fallen apart, and each company has long been independent. Furthermore, it is completely far-fetched to say that they are Babbage''s colleagues. ?However, at this time, the latter had no time to think about these details. ??Because Wu Yifan''s words have already shown that many technical personnel from CIS countries are already in China, which has reduced his concerns just now by more than half. Also, Valery Vasilyevich, there is one more thing. After discovering that Babbage had begun to waver, Lao Wu quickly pursued the victory: "In order to allow the technical staff who have gone to China to adapt to life as soon as possible, the Friendship Plan will arrange a community that is closer to the Soviet style. In addition to necessary security, translation and work docking, many service positions in the community will be reserved Relatives who are willing to come to China together can also solve their worries. " Of course, if anyone wants to experience Chinese culture and life, we welcome them and will provide special language adaptation courses. ?At this time, the remaining half of the worries were basically swept away. "but" Babiqi was almost convinced in his heart, and all that was left was some struggle, or in other words, reserve: "You just mentioned that the technical staff of so many companies specialize in different businesses. After arriving in China, their working locations should also be different. For example, I am responsible for shipbuilding and I must work in a coastal area. I''m afraid Theres no way you can live with comrades from the aviation and mechanical departments, right? Its natural. ?Wu Yifan smiled and replied: So, it depends on your ability, Comrade Valery Vasilyevich. "What''s the meaning?" Babic looked puzzled. I know that after the disintegration of the alliance, the Black Sea Shipyard can barely survive by relying on civilian orders such as small bulk carriers and barges. Most of the original engineers and technical workers have lost their jobs, right? ?Lao Wu is directly like a picture: If you can bring all these technical personnel to China, wouldnt it be possible to build a community for you in a coastal city? (End of this chapter) Chapter 755 Split up Chapter 755: Split up Hearing this sentence, Babbage was shocked. ??He originally thought that the other party just wanted to drag him to China, but it turned out that they wanted to pack up the technical staff of the Black Sea Shipyard and take them away? You must know that Babbage has worked in the shipyard for so many years. He must be capable and qualified, and his prestige is no less than that of the factory director. Especially among engineers and senior skilled workers. ??If he really wants to take action, not even the factory director can stop him. Wrong. ?Even the factory director may be taken away by him... In shock, he even forgot to argue with the other party, but said directly: "Are you sure... you can let me go and pick someone?" Even after eight years of hard work, there are still tens of thousands of employees in the shipyard or in companies affiliated with the shipyard. Of course, there are common problems in large enterprises. The level of technical personnel varies greatly, and there are not a few who are just making a living. It is definitely not possible for China to want everyone. There must be an assessment mechanism or a probation period. ?? And for outstanding technical experts like Babbage, if they succeed, they will need additional money. I really want to let him go and mobilize, and let''s not say, hundreds of people are still easy. Plus family members As for the proportion of people who can pass the assessment... But after all, in less than a minute, Babbage could think of almost three digits of names, skills, intentions and characters that were reliable. And no matter how good the conditions are, there will still be a considerable number of people who are unwilling to leave their hometowns. "Although we are indeed familiar with each other, to most people in the factory, you are still a stranger, and it is difficult to show up in person. Regarding the conditions just mentioned, if you can come up with something useful Proof, or your countrys official statement, may be more effective. If the protection is not equal, comrades are more reliable than compatriots. ??Babic looked Wu Yifan up and down again: In this case, I can try it when I get back, but... You must know that the contract signed between him and Chang Haonan is based on headcount. ??Although the first batch of places that the two of them had decided on was only 1,000 people, Lao Wu was sure that as long as there were no problems with the people they pulled over, even if they exceeded the quota, the country would still accept them. Well, it wont be much more if you include family members. In state-owned enterprises under the Soviet system, most peoples marriages were settled internally, which did not create too many idle people. Lets put it this way, in the general environment of Ermao in the 1990s, these people had technology, resources and channels, but had not yet made it to Western countries, which was equivalent to passing a strong screening process. He shook his head, and then changed the subject: "But you can rest assured that our standards are the same. As long as the person you find has real talent and learning, I can guarantee to send him there even if it is beyond the quota." ?However, Lao Wu did not express his true thoughts on his face: Wu Yifan was naturally overjoyed when he saw Babbage''s reaction. ?Although I dare not give a complete guarantee, the reliability of this group of people should not be a big problem. ?Especially at this time in China, personal psychology is also changing. Of course it wont work if you let go... We will also conduct preliminary assessment and screening. ??Babich has indeed been persuaded, but this does not mean that he has lost his mind. ?The other party made a blank statement with white teeth, and it would be okay to let him go and have a look by himself. After all, just with the name Valery Vasilyevich Babich, even if he left the Black Sea Shipyard and did not stay in China, he would not have to worry about coming back or finding a job in other CIS countries. . But it is impossible to do this with hundreds of employees. What should I do if something goes wrong and I cannot return home? The risk is too great. ?This has nothing to do with whether you trust Lao Wu himself, it is just the normal instinct of a senior engineer. ??Wu Yifan also didn''t expect that the old man in front of him looked like he was stunned just now, but now he suddenly turned around and led an army. ??However, the problems mentioned by the other party do exist. "No problem at all." Lao Wus answer was very firm: But it will take time for the materials to be delivered over there, Although the country has not given him any guarantee in this regard, the most taboo thing in this situation now is hesitation. ?Any hesitation may be considered by the other party as a guilty conscience. You can only agree first and then think of a solution. Having reached this point in the serious conversation, there will definitely be no results from todays conversation. The two of them had just walked around Pier 1 and had seen the aircraft carrier with their own eyes. Old Wu was naturally ready to leave and go back to contact Chang Haonan to see how to deal with the people at the Black Sea Shipyard, especially Babbage. This big guy has made a fortune... No, please go to China. However, at this moment, a group of people suddenly walked down from the boarding ladder connected to the stern of the aircraft carrier. Boss Wu! Chinese with a slight southern accent rang in his ears, causing Wu Yifan to turn around subconsciously. There are not many people who would directly use the title "Boss Wu" here. ??A gray-haired man wearing glasses walked quickly down from above. ??Wu Yifan recognized him without surprise. ?Xu Pingzeng, the boss of Luchuang Group who bought the Varyag. Hello, Boss Xu. Lao Wu stepped forward and shook hands with the other party. The communication between the two people naturally does not need to use awkward Russian. These days, Chinese can still have its own encryption properties abroad. Neither of them asked the other what they were doing here. They are all working for the superiors, tacitly. Mr. Xu, are you ready to tow the ship back? ??Wu Yifan asked with a smile while looking at the several barges busy next to him. ??Although he had previously thought about competing with the other party for the Varyag, he quit midway and there was no spark between him and Lu Chuang. Therefore, the two of them were colleagues who had had contact and had a good relationship. Of course, saying he is a peer is a bit flattering for the current Lao Wu. Xu Ping was once a serious red-top businessman, but he is still fighting for it. There are still some finishing touches to be done. Xu Ping once took off his glasses and rubbed the corners of his eyes: It is expected to leave next month, or September at the latest. ??The route information of this kind of ocean voyage is public, and it must be reported to the countries along the way in advance. There is no need to hide it. Then I would like to congratulate Mr. Xu on your safe journey in advance! Lao Wu was definitely sincere when he said this. For him, whether it is from the perspective of family and country feelings or personal interests, he definitely hopes that the ship can return home safely and safely as soon as possible. ?His previous series of layouts were all centered around aircraft carriers. ??However, after hearing his words, Xu Pingzeng sighed sadly: Ill borrow your good advice, brotherbut this is exactly what Im worried about now In an instant, Lao Wus killer instinct was activated: "How to say?" "Even if everything goes well on this voyage, it will take at least seven or eight months to use a tugboat to tow an unpowered hull all the way back from the Black Sea, and we will have to pass through high-risk waters near the Gulf of Aden. I''m worried. ...Safety issue..." ?Wu Yifan frowned: Does anyone dare to scuttle this ship? That wont happen. Xu Ping once shook his head: I am worried about the equipment and information on the ship. "You know, over the years, even if the Varyag has always been parked on the shore, external forces have been trying to sabotage the ship itself, as well as related technical documents and drawings. Now we have bought it and are preparing to tow it back, and we have this idea. Im afraid there will be no shortage of people. Thenwhat does Boss Xu mean? ?Wu Yifan raised his eyebrows. He had actually thought of a possibility, but he still asked. Boss Wu has been in Eastern Europe for many years and has a much richer career path than I have. Xu Ping once took him to a location slightly further away: Can you think of a way to transport some key equipment and data on the aircraft carrier back to the country through other means? "this" ?This request is similar to what Lao Wu had just guessed. But there are more links involved. I have to think carefully...please ask for permission. (End of this chapter) Chapter 756 Progress of the Science and Technology Commission Chapter 756: Progress of the Science and Technology Committee After finishing the conversation with Xu Pingzeng, Lao Wu returned to the car. As for Babic, he said that he still had some things to deal with at the outfitting dock, so he did not go with him. Angkor, how is it? Is it going well? Yan Yong asked as he turned the key to start the ignition. "smoothly" Lao Wu didn''t know how to define the result of this wave for a while. ??Although he failed to convince Babbage right away, he still made substantial progress. More importantly, he also made a fortune from the Varyag order, which he had originally thought had no hope. Although what he just said was to ask his superiors for instructions, the superiors obviously had no reason to reject him: It went pretty well... Then shall we go to Crimea next, or... So the other two things can be pushed back. A few days later. Chang Haonan was holding a red and blue pencil and quickly marking on the documents he had just received from Torch Group in the morning. While speaking, Wu Yifan took out an atlas printed in the Soviet era from the glove box, found the Nikolayev page and started flipping through it... ?However, according to the regulations, he still had to apply to Ding Gaoheng. The content is that first of all, the Black Sea Shipyard is quite satisfied with the conditions offered by the country, but after all, they have to leave their hometown, so they still hope to provide some more convincing evidence to prove that these conditions are real and not a pig-killing plate. The document naturally comes from Wu Yifans Black Sea Import and Export Trading Company. According to the original plan of the two, this trip was to collect resources for the domestic aircraft carrier program. After the trip to the Black Sea Shipyard, the next step was to negotiate for the purchase of key technical data for the Nitka aircraft carrier training system, and finally flew to Murmansk tried its luck to see if there were any unemployed veterans who were familiar with the operation of aircraft carrier formations. From Chang Haonans perspective, both requests are reasonable and can be agreed to. ?Putting the documents scattered on the table into his briefcase, Chang Haonan prepared to contact Zhu Yadan who was waiting below to pick up the car. Secondly, Luchuang Group hopes to share the risk and hand over some key equipment information on the ship to Lao Wu and transport it back through his previous smuggling route. Under normal circumstances, those who can settle their accounts by the end of the year are considered living bodhisattvas. It is not uncommon for those who procrastinate for three to five years to do so. ?But as soon as he reached out his hand, the phone rang by itself. Chief Planner''s Office. ?However, for Lao Wu, the most important of these three things is the group of technical personnel at the Black Sea Shipyard. The main reason is that the friendship plan is directly connected with Chang Haonan. Although the capitation fee is not high, the return period is very short. It is almost a one-hand payment and a one-hand delivery (person). Anyone who has worked as Party B for an official will know how rare this is. The newly established headquarters of China Aviation Power Group. There is no rush to leave, we have to stay in Nikolayev for a few days, find a place to stay first, and then find a way to contact the country. The car has started driving slowly. ?He was stunned for a moment, then picked up the receiver of the intercom phone. Hello, I am Chang Haonan. Mr. Chang, I just received a notification from the guard that Director Ding of the Science and Technology Committee has arrived at our group. ??The voice of Zhang Liangping, deputy director of the Second Comprehensive Division of the Group Office, sounded on the other side of the phone. The so-called general office department is actually the secretarial team of the leadership team. According to documents issued by superiors in the early years, full-time secretaries are not allowed below ministries and commissions. After the head office was restructured into a group, in response to the call from superiors for de-administration, the name was changed from the General Office Secretariat to the General Office Office. The first office is responsible for connecting with the general manager, and the second office is responsible for connecting with six other people. As for why it is the turn of a deputy director to take over Chang Haonan, who is at the bottom of the team... Because there are a total of 7 people in the second office, except for one director, they are all deputy directors. "okay, I get it." Chang Haonan turned back and glanced out the window, and sure enough he saw Ding Gaoheng''s black Audi, sandwiched between two other Santanas, slowly driving in from the outside. As the director of the Science and Technology Commission, Lao Dings security level was similar to that of Chang Haonan today, not to the point where he had to be surrounded by people everywhere he went. As a superior with a business guidance relationship, it is reasonable for him to make a "surprise attack" one week after the group was officially established. ?Furthermore, Chang Haonan is not just being sentimental. He has reason to believe that Ding Gaoheng came specifically to see him during this trip. Because just in the past two days, most of the team members have been conducting research in the factory below. Only he and the other chief accountant stayed at the Beijing headquarters because they had specific work at hand and couldn''t leave. So, after thinking for a moment, Chang Haonan took out the packed documents again, stood up and opened the office door. Sure enough, just a few minutes later, Chang Haonan heard the sound of the elevator arriving at the floor. ??The messy footsteps gradually slowed down, and finally only Ding Gaoheng walked into the office. Director Ding. ?Chang Haonan stood up. When the leader came to visit, it was naturally impossible for him to continue sitting in the office chair. Instead, he and Ding Gaoheng went to the sofa together. He took advantage of the situation and poured a cup of tea for each of them. Xiao Chang. Ding Gaoheng picked up the tea cup and asked while stirring the tea leaves with the lid: Do you think you can adapt to the work during this period? "fine." Chang Haonan said and sat on another sofa: Currently, I usually deal with Torch Group or school matters in the morning, and then come here in the afternoon. After all, I have led projects in Hangfakou for more than two years, and I am familiar with the business, so I got started quickly. In fact, the chief planner should not have much work that he is directly responsible for, and he is relatively idle among the team members. But now it just happens that the group has just been established. In this special period, we will definitely still be busy. Ding Gaoheng leaned on the back of the sofa, folded his hands in front of him, and nodded slightly: "Well...you have to run in three directions now, which is really a bit stressful." Chang Haonan looked at this posture and clearly had something to say, so he did not interrupt. Sure enough, after a few seconds, the other party sat up straight again: What do you think about officially transferring Torch Group into Aviation Power and becoming a subsidiary? Before the formal establishment of the Aviation Development Group, Ding Gaoheng actually said this - ??The Torch Group was originally established under the Academy of Sciences as a temporary measure. Because Chang Haonan''s personal influence was still limited at that time, it was impossible for the higher-ups to set up a new state-owned enterprise specifically for him in the context of the restructuring of state-owned enterprises. They could only use a company under the Academy of Sciences that was about to go through the liquidation process to rebirth. But now the situation is completely different. Chang Haonan''s status has been like a rocket ride in the past two years. He himself is already the leader of the Aviation Development Group, so there is no reason to continue to insert the Torch Group into the Academy of Sciences system. ?However, Chang Haonan did not expect that the action would be so fast. He originally thought that it would be early next year at the earliest. Of course its better from my point of view and saves a lot of energy, but ?Chang Haonan hesitated for a moment: Aviation Power Group has just been established for a week, and it snatches enterprises from brother departments. Will it be harmful to our Science and Technology Commission..." Enterprises under the Academy of Sciences belong to the Ministry of Science and Technology system, while Hangfa Group belongs to the Science and Technology Commission system. ?Although the relationship between the two parties has always been good, when it comes to Chang Haonan''s current position, some influences must be taken into account. The Science and Technology Commission has grown rapidly in recent years, and he doesnt want to give an overbearing impression. You dont have to worry about this. Ding Gaoheng waved his hand and interrupted him: "When we were preparing to establish the Torch Group, I made an agreement with Song Jian. When you can take charge of your own affairs, no matter which system you are in, the Torch Group will be transferred directly to the department under your direct management. Although the Science and Technology Committee has been reorganized into the Science and Technology Committee The ministry was over, and Song Jian also resigned, but it was still effective. " "Furthermore" Ding Gaoheng lowered his volume slightly: This matter, including the inclusion of Electronic Technology Group and Huaxia Machinery Industry Group into the management of the Science and Technology Commission last year, is actually pushed by the higher-ups, and I am only responsible for the implementation. Judging from the current tone, if nothing unexpected happens, by the next organizational adjustment, the ranking of the Science and Industry Commission is likely to move up one or two places and become one of the key departments. ?Chang Haonan''s eyes widened slightly. One or two further ahead, that would be fifth or sixth. If this trend develops, the Science and Technology Commission is likely to take off its military hat early and become a completely local agency. ? And Ding Gaoheng is likely to take another half step forward by then and take full charge of industrial and information construction... This is of course good news for him. (End of this chapter) Chapter 757 Expand production capacity for J-11 Chapter 757: Expanding production capacity for the J-11 Ding Gaoheng came here today not specifically to merge Torch Group into Aviation Power. ?Just now Chang Haonan accidentally mentioned that he wanted to run in school, Torch Group and Aviation Power, so he mentioned it. Director Ding, actually before you came just now, I originally planned to go to the Science and Technology Commission to find you. After some pleasantries, Chang Haonan took the initiative to switch to the topic. "oh?" Ding Gaoheng suddenly became interested: Is there anything else you want to report to me? This time its really not a report. Chang Haonan stood up as he spoke, picked up the documents from his desk, and handed them to Ding Gaoheng: Its the friendship plan and the Varyag thing. "The news sent by Wu Yifan in the morning said that he persuaded Valery Vasilyevich Babich, the chief designer of the Varyag and Ulyanovsk factories. , and through him, he mobilized a large number of employees of the former Black Sea Shipyard who had lost their jobs. Ding Gaoheng, who had been looking down page after page, suddenly raised his head, his eyes flashing with excitement: This is a great thing. Now is the critical stage of the domestic shipbuilding industrys production capacity increase. If these old experts and technicians can come to China, it will be very helpful to improve our process technology. Mainly reflected in the four modern-class destroyers bought back. No, noits not so much that the conditions are not good enough, I think the conditions are a bit too good. You mean...there are still some dissatisfactions? As a result, Chang Haonan quickly waved his hand before he was halfway through his words: Most of the high value-added orders are still in the hands of Europe, Japan and South Korea. But the construction of other main battleships, including civilian ships, also has room for them to use their remaining energy. The quality of the 136 and 137 ships that were continued to be built was much better than the 138 and 139 ships that were later built. "After all, Lao Wu''s company is just a small company engaged in import and export trade. People will inevitably feel that it is not reliable enough. You also know that in the past few years after the disintegration of the Soviet Union, these old workers have been miserably cheated by private companies. What is wrong with them? Resistance is also normal. ?Of course, except for high-level experts like Babbage, it is impossible for most people to directly participate in core naval projects such as aircraft carriers. Our country is lacking everything now, except for old factories like those in the Soviet Union. They are everywhere ??Although Ding Gaoheng has not personally been to the CIS countries, it is not difficult to guess the mentality of employees there. Hearing this explanation, Ding Gaoheng was immediately happy: This is easy to handle. Although it is not convenient for our officials to come forward directly, we can ask comrades in the shipbuilding industry system to print some bilingual brochures in Chinese and Russian, and attach the communities we have prepared and factory photos. "Last year, the Navy and Lianhai Shipyard sent a group of military representatives and technical experts to the St. Petersburg Northern Shipyard to inspect. They found that those old Soviet-era ships, even if they had been soaked in water for nearly ten years, were inferior in craftsmanship and quality. The ships newly built in the past two years are much better, but the only difference lies in these masters! Chang Haonan replied: Although China is already the world''s third largest shipbuilding country in terms of shipbuilding tonnage, at the turn of the century, "big but not strong" is definitely not a casual statement. Chang Haonan had heard of what Ding Gaoheng said in his previous life. After nearly ten years of hard life, it is impossible to say that I have no idea when I first see this familiar atmosphere and environment. However, because there were so many people this time, they still have some concerns about the conditions we gave. Ding Gaoheng put the documents on the coffee table: Objectively speaking, even compared with the Soviet Union in the late 1980s, our countrys current material and cultural level is indeed lacking to a certain extent, but... Lao Wu also mentioned this in the report. So I am also considering that if there are indeed enough people in this batch who meet the requirements, based on the 1,000 places in the first phase of the Friendship Plan, we can expand the number as appropriate and try to absorb this batch of precious technical personnel. " ?With some encouragement at this time, many things will fall into place. ?At this time, there were not as many scams as there were later, or in other words, although they existed, they were not well known. So when it comes to vigilance, its really just that. Having a decent brochure and photos, it is very persuasive. This is feasible. Chang Haonan also nodded: Then Ill ask Lao Wu to stabilize the other party first, dont act too hastily, and wait until we send the promotional materials over before we take any action. After this problem is solved, there is nothing more to say about the second thing. ?Xu Pingzeng and Wu Yifan have both agreed. It is said to be an application, but in fact it is just a notification. Furthermore, from Chang Haonans perspective, the formers concerns are very reasonable. ?In the original timeline, when the Varyag was being towed back to China, it encountered several situations where foreign personnel tried to illegally force board the ship, and even succeeded. ??It''s just that the Varyag bought back in the last life really only had a hull, and there was really nothing on it that could be further damaged, so it didn''t suffer any actual damage, it was just a bit embarrassing. But now Xu Ping has saved a lot of key equipment and data, which are currently on the ship. If they are captured or destroyed, it will be a big loss. As for disassembly, handover and transshipment, it will take about 1-2 months... For a long-term industry like shipbuilding, which is often counted in years, it is obviously not critical. ?Originally, according to Chang Haonan''s idea, since the departure time of the Varyag to return to China will be slightly delayed, there shouldn''t be much going on before the National Day. However, plans cannot keep up with changes. At the end of August, as the new semester of colleges and universities began, Chang Haonans work focus gradually shifted from business management back to the laboratory. ?Yao Mengna also completed the first phase of the production capacity ramp-up task at Factory 112, increasing the output of the J-11 by about one-third. According to the previous agreement, Chang Haonan needed to prepare a new topic for her. ?However, this time, Yao Mengna came back with her own problems. Professor Chang, I found a problem. ?Yao Mengna, who had just taken off her hat and put on a lab coat, sat on the chair opposite Chang Haonan''s desk. "what is the problem?" Chang Haonan raised his head. I found that I had gone into a misunderstanding. Yao Mengna frowned slightly, obviously troubled by something: I have always thought that the efficiency of the No. 11 Pulsating Production Line did not meet the expected targets because I failed to control the working hours distribution coefficient of each link. "But later I discovered that the problem actually lies in the entire assembly process, especially the quality inspection process after each link. The amount of data is too large, and the key data output by different inspection links are different. As a result, this step cannot be solved by an automated system. Although it was entered into the computer, in the end it was still checked manually..." ?Chang Haonan was not in a hurry, but listened to Yao Mengna''s slightly confusing explanation while sorting out what the other party wanted to express in his mind. Simply put, although a large number of sensors are added to the production line, the data returned by the sensors is too complex and cannot be easily analyzed directly. Especially for issues such as deformation, flatness, dimensional fit, missing rivets, and re-riveting during the riveting process, the data generated has a very high dimension. ?For example, missing rivets will leave a hole in the location of the rivet hole. For humans, it is easy to take a look, but for automated equipment, it is difficult to identify. In the end, it was just a matter of workers going to the work station to inspect, instead of taking photos, and then workers checking the photos. On the contrary, it was an extra step. So, I thinkonly by using computers to replace people to complete this process can the theoretical potential of the pulsating production line be fully realized! ?Yao Mengna took a sip of water and finally concluded. (End of this chapter) Chapter 758 manifold learning Chapter 758 Manifold Learning The question raised by Yao Mengna is not difficult for Chang Haonan to understand. Its just difficult to solve. To be honest, this involves a series of issues such as text mining, data visualization, information retrieval, data mining, machine learning and even artificial intelligence. ??If we can achieve fully automated production as envisioned by Yao Mengna, it will be Industry 4.0. At this point in time in 1999, it was obviously unrealistic. But the fact that it is impossible to fully realize this whole set of things does not mean that there are no parts that can serve as breakthroughs. ?For example, data mining and information retrieval are very hot research directions around the millennium. The core purpose is to extract valuable knowledge from massive databases and large amounts of complex information, and to further improve the utilization of information. In fact, before Chang Haonan was reborn, the field of aircraft design and manufacturing had already begun to apply this technology, and he himself had been exposed to a lot. But at that time, as an ordinary technician with an engineering background, he did not have much theoretical foundation. Conversely, in most cases, the information collected in reality is itself high-dimensional data that has been expanded. In fact, most of the problems we face in real life are also this kind of problem. This resulted in a lot of nouns in his mind now, but he didnt know which one was the key to solving the problem 3. Extract high-quality data features to improve the effect of subsequent data representation and classification tasks. In fact, he was faced with the dilemma of being unable to extract valuable information from a large amount of complicated information. 1. Compress the original high-dimensional data to reduce the dimensionality of the original high-dimensional data, thereby saving storage space and reducing the computational complexity of the high-dimensional data. That is, one-dimensional data. no response. "information" The word problems done in primary school and middle school are generally like this. He went through these three items in his mind, and then tried to get the system to give a result. But at the same time, this set of data often cannot only describe this one meaning. In an idealized model, it is best if one piece of data can accurately and uniquely describe a meaning. ??And if you want to let computers process these high-dimensional data... 2. Eliminate, or at least reduce, the noise hidden in the original high-dimensional data. ?Chang Haonan pulled a piece of paper from the side and wrote two words in the middle of the paper. For more complex situations, to fully describe a meaning, a set of data is often required. This is a situation pushed into reality by mathematical theory. Chang Haonan thought for a long time and wrote down three basic conditions on the paper: As for the system, you first need to build a complete and feasible idea. ? To mathematically describe the phenomenon that a set of (multiple) data corresponds to multiple meanings, it is necessary to expand a set of data in different dimensions. Obviously, this cannot be regarded as a "complete and feasible" idea. ?Unconsciously, Chang Haonan was sitting at his desk until it was almost time to have lunch. ?Still not able to come up with a good idea. Until a cry from the abdomen woke it up from deep thought. I am indeed a little hungry. Yao Mengna looked at a noun and three sentences on the paper, and knew that Chang Haonan probably had no idea, so she simply stood up and said: Would you like to have a meal first? Also good. ?Chang Haonan is not the kind of person who is obsessed with things. What''s more, with regard to things like mathematics, I can''t figure out anything by just thinking about it. Without inspiration, nothing you say is of any use. Its better to relax first and change your mind. Fifteen minutes later, the three of them (together with Zhu Yadan) were already sitting around a round table on the second floor of the cafeteria. ?This is a small restaurant with an a la carte menu. The price is a bit more expensive than the large canteen below. Plus, it has an extra floor, so there are not many people eating here. On the contrary, the small supermarket next to it has a lot of people coming and going. Chang Haonan had a steaming plate of mutton soup noodles in front of him, but he was not in a hurry to move his chopsticks. Instead, he was looking at the people going up and down the stairs not far away. In the 1990s, instant noodles were still a very popular ready-to-eat food. When Chang Haonan was studying for his undergraduate degree, everyone''s conditions were generally poor, and not many people had spare money to afford food. But by this time in 1999, it was no longer uncommon for college students to keep a few bags or even a box in their dormitories. You said Chang Haonan suddenly said: How do companies that produce instant noodles ensure that they dont miss out or overfill seasoning packets? ?Yao Mengna, who was eating with her head down, was stunned for a moment, and immediately realized that Chang Haonan was still thinking about the question she just raised. Stuffing seasoning packets into instant noodles and driving rivets into airplanes are actually similar in terms of mathematical models. Companies that produce instant noodles are obviously unlikely to have high-end equipment and technology. Probably...weigh? Yao Mengna guessed: The seasoning packet accounts for about 10% of the weight of the entire package of instant noodles. If you put less or more of it, it should be easy to detect. Hmm...but there is an error in the weight of the dough itself, and there are several kinds of seasoning packets. Weighing can only prove that the total amount is OK, but it cannot guarantee that it is not wrong..." ?Chang Haonan shook his head and said in denial. Zhu Yadan next to him looked at Chang Haonan on the left and Yao Mengna on the right. He really didn''t know why these two people suddenly discussed this issue. "that" ??Although she felt that it was a bit awkward in front of the two doctors, she couldn''t help it in the end: Before the packaging step, wouldnt it be enough to find someone to watch next to the assembly line? ?Yao Mengna holds her forehead with one hand: We are just thinking about how we can achieve the same effect without using this person. Is this... ?Zhu Yadan shrank his head instantly: "I just said it casually...but sometimes the role of the human brain may not be replaced..." Calmness returned to the area around the dining table, except for the occasional faint sound of chewing. But Chang Haonan still didn''t move his chopsticks. "you''re right." A few minutes later, when Zhu Yadan was about to finish the fried noodles on the plate in front of him, Chang Haonan suddenly said: The human brain can parse high-dimensional data in a certain way to gain a perception of the external world. ?) ??Zhu Yadan raised his head with questions in his head, but looking at Chang Haonan''s thinking, he knew enough not to disturb him. In other words, external information with high dimensions must be underlying a nonlinear manifold structure in a low-dimensional space Nearly 70 years ago, American statistician Harold Hotelling proposed the principal component analysis method to reduce the dimensionality of high-dimensional data. He believed that the greater the variance, the more information was provided, and conversely, the less information was provided, so he constructed several principal components with large variance and high information content through the linear combination of the original components, and then performed matrix singular value decomposition to reduce the data dimension. . However, the principal component analysis method is only equivalent to finding the optimal linear mapping in the sense of minimizing the projection distance, but in reality there are not so many simple linear problems. However, this idea can be used for reference. ?Chang Haonan put down the mutton soup noodles that he had only eaten one bite, stood up and quickly left the canteen. ?Zhu Yadan, who was responsible for security, quickly followed. Yao Mengna''s reaction was a little slow. Just as she was about to get up, she realized that she hadn''t paid yet, so she had to take out her wallet and walked to the cashier helplessly. Chang Haonan, who returned to the office, found the piece of paper again. Write a few more lines below the three basic conditions. Given a set of high-dimensional data X={x1, x2,...,xn}RD, n is the number of data samples, and D is the dimension of the high-dimensional data. Assume that the data samples in Find a mapping relationship from high-dimensional observation space to low-dimensional embedding space such that yi=(xi), and a one-to-one reconstruction mapping relationship ^-1 such that xi=^-1(yi). Writing this, Chang Haonan showed a satisfied smile on his face. Although he still has not given a complete idea, he has at least analyzed the three abstract basic conditions into a concrete mathematical problem. For theoretical research, clearly raising questions is almost half of the way to success. ?Thinking of this, he returned to the top of the paper and wrote six words again. Manifold learning method. (End of this chapter) Chapter 759 Entering the world of theoretical mathematics? Chapter 759 Entering the world of theoretical mathematics? ? ? Next, for almost half of September, apart from responding to some necessary documents and phone calls every day, Chang Haonan locked himself in the office and solved the mathematical problem he had summarized. It should be said that with the help of the system, this matter went very smoothly. But the direction of success was somewhat different from what he expected. Because after spending a few days to come up with a complete problem-solving idea, the project directly given by the system turned out to be a proof question. Simply put, For any set of high-dimensional data X, there must be a mapping relationship that maps X to a set of data Y in a locally simple Euclidean space. ?Of course, the actual content is more complicated. Since it also involves the definition of differential topological geometry of manifolds, a series of basic conceptual issues need to be solved first before we can really start to get to the point. This is one of the reasons why theoretical mathematics papers are generally extremely long and difficult to understand. In short, it took Chang Haonan about three weeks to completely organize the entire proof process on paper. After the system level is upgraded to LV3, the ability is indeed one level stronger than before - Yao Mengna lowered her head suspiciously. ?For example, when he was working on the turbojet 14 before, Chang Haonan also said that he only conducted preliminary research on the principle of the compressor. The difficulty of this matter is often no less than solving the problem itself. After all, the system is in charge of killing and not burying... ??When Chang Haonan handed Yao Mengna a pile of proof procedures that had been compiled into photocopies for her to look at, the latter''s expression was probably one of surprise and surprise, mixed with a little bit of dissatisfaction. ?According to her experience, the staged results mentioned by Chang Haonan are often not staged. It is directly a fatal three-part company. ?Chang Haonan quickly waved his hand: There is still a long way to go before we can solve practical problems. I have only achieved some preliminary results. Have you solved the problem? You can only rely on yourself. In a blink of an eye, its the end of September. "So fast?" Phase results So much so that after he first wrote down the extremely jumping analysis process on paper according to the logical order given by the system, he had no doubt that no other person could understand the content above. But in fact, it has directly raised the original turbojet 14 with serious patchwork traces to the performance level of a quasi-third-generation mid-range model, and some indicators are even close to those of the F404. But what if we agreed to participate together? Its a bit like a university-graduated teacher who needs to adjust his way of thinking to roughly the same level as the latter before teaching elementary school students to solve problems. ?When giving the "problem-solving steps", it will also strengthen Chang Haonan''s own understanding in related fields. Thats not true. Most of the time afterwards, Chang Haonan was trying to solve this problem as much as possible. ?However, as she watched, her expression gradually solidified. Seems...a bit difficult to understand. From the content point of view, this seems to be a purely mathematical process. Fortunately, apart from some novel definitions, Chang Haonan did not use any particularly out-of-the-ordinary theory. The part about topology does use some relatively cutting-edge results, but the overall framework still does not deviate from the tradition, and only has some limited expansions based on the predecessors. This is an important point. ?Yao Mengna does not specialize in mathematics and has basically no ability to judge the rationality of new mathematical theories, but her mathematics scores and application level are both good. This means that although she will face some obstacles, she will eventually be able to understand what Chang Haonan wrote on the paper. Its not exactly reading the heavenly book. ?Just when Chang Haonan was about to ask Yao Mengna to go back and take a look, the latter suddenly raised her head: Can you give me some pieces of paper? Obviously, she is making progress. ?Chang Haonan quickly pulled out a few pieces of printing paper and a ballpoint pen and handed them over. Yao Mengna immediately lowered her head and began to write and draw on it. In the end, Yao Mengna took the things back. What Chang Haonan spent three weeks sorting out, even if it was the answer, was not something she could fully understand in a few hours. ?However, just a few days later, Yao Mengna found Chang Haonan again. "I understand." These four short words instantly brought joy to the latter''s expression. "Very good!" Chang Haonan clapped his hands: In this way, we can continue to study specific manifold learning algorithms! Uh...Professor Chang. Yao Mengna frowned, showing some confusion: If I understand correctly, this should be a proof of a conjecture that has been put into application. It seems...not directly related to the specific manifold learning algorithm? Indeed not. Chang Haonan nodded: But since even you can understand my proof process, it means that the topology knowledge applied in the entire theory has not been out of date, and the new algorithms developed next should be understandable and applicable by most people. " ?) Yao Mengna felt that this sentence didn''t sound right, but she couldn''t find any angle to refute it, so she opened her mouth several times in a row and suppressed her blush. Finally I had to change the topic: How about... lets talk about manifold learning algorithms? ?Chang Haonan is still in excitement at this time: "As for the specific algorithm, I currently have two ideas. One is to replace the geodesic distance between the sample point xi and its neighborhood points with the Euclidean distance between them; and use the flow with points outside its neighborhood The shortest path between them is replaced by the shortest path between them, so that if the low-dimensional manifold where the high-dimensional data is located is overall equidistant from a subset of the Euclidean space, then an ideal embedding result can be obtained. The second is to construct a reconstructed weight vector between the sample point and its neighborhood points and keep the weight in each neighborhood unchanged in the low-dimensional space. For each sample point and its neighborhood set, respectively Calculate the reconstruction weight, so that only the computational complexity of O((m+k)k^2*N) is needed to complete the embedding process..." We are each responsible for one of these two ideas, so even if one of them fails, there is still a second way that you can choose first. ?The reason why Chang Haonan made such an arrangement was not entirely for military training. But as Chen Shengshen said Really good work, first-class work, is done by one person. This sentence is still very prestigious in the world of mathematics, including applied mathematics. Two people working together may produce an effect of 1+1 less than 1. I choose the first one. ?Yao Mengna made her choice almost without any hesitation. Because when Chang Haonan talked about the second one, she was already a little dizzy, so she didn''t understand much. "Well." Chang Haonan nodded: Thats settled for now. After sending Yao Mengna away, he did not immediately invest in researching the second idea. On the one hand, the National Day is coming soon. During this period, he will definitely not be able to devote himself to it as before. It is better to wait until he is finished. On the other hand, the certification project that was previously hung on the system was not judged as completed. Although the level 3 system can carry out 3 projects at the same time, it means that he still has an vacancy at this time. But for a person with obsessive-compulsive disorder, this is like having unclear question marks when playing a game, which is simply unbearable. Hence, Chang Haonan turned his attention to the computer screen again and sorted out the proof process himself. In fact, manifold learning was not a new term even in 1999. As early as a few years ago, in the fields of image recognition and speech recognition, someone had already proposed this concept and put forward a hypothesis that "high-dimensional data can be processed through its inherent low-dimensional manifold structure." Although this hypothesis has never been proven, it does not prevent researchers from temporarily assuming that it is true and then starting to apply it. ??Its just that the performance of computers these days is really poor, so until now, there is no application for 1, 2 or 3. Chang Haonans proof itself can only have a stabilizing effect on the engineering community. The mentality is probably equivalent to the empirical formula that has been used for so many years, and it is indeed right in the end. It may not even be a surprise. But it should still be of some value to the theoretical mathematics community. Although he did not directly prove the above hypothesis, he at least proved the universal existence of low-dimensional manifold structures. It is equivalent to taking a big step in this direction. In addition, this proof may also provide some inspiration for human research on multi-dimensional space, such as Poincar conjecture and other topics. However, the standard for the system to judge the completion of a project is the impact the project has on the real world. How can a purely theoretical proof process be influential? It seems the best thing to do is to publish it And find a theoretical mathematics journal to publish it. (End of this chapter) Chapter 760 Changs Lemma Chapter 760 Changs Lemma After the content has been sorted out, it actually does not take too long to write the entire proof process into a paper with a decent format. Everything fell into place. By the next night, Chang Haonan had completed the work. ?His biggest shortcoming was originally his English proficiency, but the mathematics paper actually did not rely heavily on this. Since even Yao Mengna can understand it, even if he writes it in Chinese, the top mathematicians responsible for reviewing the manuscript will probably not have any difficulty in understanding it. Of course, thats just what Im saying. After all, just because the reviewer can understand it doesnt mean that the editor can also understand it. ??I really received a submission full of incomprehensible characters, and the submitter was an unfamiliar name with no achievements in the world of theoretical mathematics. There is a high probability that it will be thrown directly into the trash can. ??This kind of thing is also part of academic hegemony if we talk about it above and below the line. But we can only wait until later to solve it slowly This generally depends on the research institution or the reputation of the editor-in-chief in the academic world. ?Although this proof has no direct "use" to the material world. But theoretical mathematics doesnt care much about this. After all, running an academic journal, especially a top journal, is not just about registering a publication. ?Of course, these are all things for later. In addition to the main conclusion that "for any set of high-dimensional data Stretch and expand. Some Swedish journals, such as ActaMathematica, accept submissions in Swedish. In general, his article contains two parts. What is before Chang Haonan is to consider where to submit this article. This is also what Chang Haonan, including all Chinese research institutions, lacks most today. In the process of proving his main conjecture, Chang Haonan also proved that Ricci flow can be used to complete a series of topological operations to construct geometric structures and transform irregular manifolds into regular manifolds. The conjecture about Ricci flow itself was proposed by Qiu Chengtong. ??If a top journal could be published by Huaxia, the manuscripts would naturally be in Chinese. ??If you are too utilitarian, those people who do pure mathematics may even look down upon you. You must have top scholars willing to submit manuscripts to you. In fact, Chang Haonan also made reference to the papers of these three great masters during the past month''s compilation process. In fact, this is what Chang Haonan has been planning since he was reborn. Prior to this, Qiu Chengtong, Li Weiguang and Richard Hamilton have conducted research in this direction for more than ten years. ?This theory believes that if a metric is given on the manifold and then improved by the Ricci flow development equation, the curvature of the manifold will also stretch accordingly. ?But I never found the opportunity. ??If this were in the engineering world, assumptions like this that cannot be falsified would have been used as tools long ago. But in the world of theoretical mathematics, it is obviously not possible to play this way. Therefore, Chang Haonan''s proof is equivalent to giving scholars in the field of differential geometry two tools that they have long wanted to use but have never been able to use. According to the conventions in mathematics, if nothing else happens, they will probably be pinched together and named "Chang''s Lemma". As for the use of Chang''s Lemma... Intuitively, it may be possible to prove the Poincar conjecture. That is, Every simply connected 3-dimensional manifold is homeomorphic to the 3-dimensional sphere. And proving the Poincar conjecture itself... ?Chang Haonan naturally tried it a few days ago. The theoretical level provided to him by the current level 3 system is obviously not enough for him to formulate a "complete and feasible" idea. Chang Haonan also wrote this at the end of the article: These two proofs have more profound significance in the field of differential geometry, but due to the length of this article, I will explain it in more detail in the future... ??If the Poincar conjecture is compared to a sealed treasure box filled with treasures, then the tools in Chang Haonan''s hands now can only pry open a gap in it. Some parts of this paper are just a few treasures spilling out of the cracks. Such a treasure, for the theoretical mathematics community, is naturally enough to directly consider the so-called "four major journals" - Annals of Mathematics, New Advances in Mathematics, Journal of the American Mathematical Society, and the above-mentioned Journal of Mathematics. There is nothing worth choosing about difficulty. In 1999, among the four major journals, only the Annals of Mathematics accepted and published electronic versions of papers, and the differential geometry gurus mentioned earlier were also closely related to this journal. Hence... ??Select the file and upload it! For Chang Haonan, this can only be regarded as an episode on his scientific research journey. At least for now, he is not ready to take theoretical mathematics as his main direction of attack. Hence, after completing the submission, he shifted his energy to preparing for the National Day ceremony. After all, thats all for the past few days. Although Chang Haonan does not need to do anything, almost one-third of the aircraft participating in the ceremony are equipped with engines that he participated in or presided over the design. Zheng Liangqun has sent invitations more than once, asking him to visit Jinmen WQ District Airport. . ?? He had been immersed in academics before, but now that the research on manifold learning has come to an end, he has to go there. And it just so happens that we can go with Ding Gaoheng. ??The distance from Beijing to Tianjin is not long, but the security along the way is also quite troublesome. Two people traveling together can somewhat relieve some of the pressure on the security department. Xiao Chang, I heard from Commander Zheng that he has invited you for almost a month. In the specially modified minibus, Ding Gaoheng sat opposite Chang Haonan and said with a smile. I received it too, but I cant help it. Ive been studying a new topic recently, and its hard to be distracted and interrupt my thoughts, so Ive put it off until now. ?Chang Haonan reached out to straighten his hair, which was slightly longer because he hadn''t cut it for more than a month, and replied. A subject that you cant get away from? Ding Gaoheng glanced at Chang Haonan''s thick black hair with complicated eyes, and raised his eyebrows slightly. ?In the past few years, Chang Haonan has shown a strong ability to multi-task, and can even lead two unrelated projects at the same time. ?Hence, Ding Gaoheng was a little shocked when he said the words "not easy to distract". ?Chang Haonan also noticed the other party''s eyes. In order to prevent Ding Gaoheng from thinking that he was showing off his hair, he hesitated for a moment and put down his hand: Well... I originally just solved a problem of information retrieval and data dimensionality reduction, but in the process I discovered some results in theoretical mathematics, so I spent some time proving it and submitted a manuscript. "oh" ?At this time, Ding Gaoheng has not yet realized the seriousness of the matter: Where to invest? Annals of Mathematics. ?Chang Haonan picked up the cup and took a sip of water. "ah?" Ding Gaohengs eyes widened. ??Although he was born in the Soviet Union and cannot speak English very well, it does not mean that he knows nothing about things in the United States. Annals of Mathematicsthe one from Princeton University? Yes, a conjecture in the field of differential geometry proves that they are more professional there. ?Chang Haonan nodded. Ding Gaoheng opened his mouth, seeming to be hesitating. But finally asked: Then...do you think the probability of winning the manuscript is...high? Its not that he doesnt trust Chang Haonans ability. Mainly, he has seen many science scholars switch majors to the engineering field, but it is indeed strange to switch from engineering to science, especially to theoretical mathematics. ?Although Chang Haonan has made considerable achievements in control theory before and published an influential article, it is still regarded as the highest achievement in Chinese control theory. But although control theory also contains the word theory, it is generally regarded as an engineering subject. ??Now go directly to challenge the top boss like Mathematics Annual, and everyone has to weigh the success rate in their hearts. ?Compared with this behavior, Ding Gaoheng could only think of Qian Weichang who gave up history and switched to theoretical physics. When the latter was 18 years old, he was admitted to Qinghua University with a score of 100 in Literature and History, 5 points in Physics, and a total of 20 points in Mathematics and Chemistry. However, he caught up with the September 18th Incident the following year and decided to abandon literature and pursue science, and learned to build airplanes and cannons. . Then I got the highest score in my major when I graduated. Later he also became a leading figure in the fields of mechanics and applied mathematics. ?Although Ding Gaoheng has heard this story many times, when another similar person appears, he still feels... A bit outrageous. (End of this chapter) Chapter 761 eve of military parade Chapter 761 The Eve of the Military Parade I personally think...it shouldnt be a big problem. Facing Ding Gaohengs question, Chang Haonan touched his chin and thought for a moment: Unless their editor was drunk and didnt send my article to the experts in differential geometry. In fact, in the 1990s, when his article was submitted, no matter who it was submitted to, in the end it would most likely be handed over to a few people for review. Its nothing more than a difference in efficiency. Ding Gaoheng nodded. ??If someone else expresses his position in this way, he may have some concerns. However, Chang Haonan has always left room for speech and has never lied. Since he can make such a statement, he is obviously quite confident. When will it be published? Ding Gaoheng asked with concern. This is hard to say "But I heard that those big guys who are engaged in theoretical mathematics have weird tempers. There is no guarantee that they can''t find someone or they have something to do. I can only say that if everything goes well, considering that the annual journal of mathematics is published bimonthly, then it will be best to It should be published in the sixth issue of this year at the end of November soon. Chang Haonan also paused for a moment before continuing: On the contrary, Poincar''s conjecture is widely used in fields such as computers, engineering design, and biology. Otherwise, it would not have been included in one of the seven Millennium Problems seven months later. "I''m not in a hurry about this. It''s originally a by-product of studying manifold learning. After the National Day, my focus should be on finishing the Turbofan 10 project, as well as the data mining algorithm just mentioned. This is the application Projects with relatively strong scale are more valuable at this stage. In case it is found that it is not true later, just find a way to add corrections. ?Let alone two lemmas, even if the Poincar conjecture is really proved, it is not a particularly urgent matter for China today. In fact, the greater value of Poincar''s conjecture lies in physics, such as providing a mathematical foundation for string theory and quantum gravity theory. ? Its just that before that, in 2005, Perelman had entered seclusion, and no one knew his whereabouts. Ding Gaoheng was visibly relieved when he heard that the publication time was calculated in months instead of years. Furthermore, as a reborn person, Chang Haonan clearly knows that the Poincar conjecture is true. Since he almost proposed a whole new theory during the proof process, it took other mathematicians nearly three years to finally confirm that his proof process was correct. Chang Haonan shook his head: "Theoretically speaking, my proof process is only an extension of the Ricci flow, and it has not reached the level of establishing a new theoretical framework. Even... uh... in short, for mathematicians who study differential geometry, especially the Poincar conjecture. , there should be no obstacles to understanding. ?? Did not submit to any mathematics journal, but published 3 consecutive papers directly on the Internet. Neither the $1 million prize, the title of academician of the Russian Academy of Sciences, nor the Fields Medal could make him reappear. But similar to the N-S equation, which is also a millennium problem, even if a rigorous explanation from a mathematical perspective is not found, the engineering community can still use it first. Let me first assume that it is true. In a previous life, it was proved by Russian mathematician Grigory Perelman in 2003. And that will happen much later. ??Of course this does not mean that the Poincar conjecture has no practical significance. Furthermore, considering that the Poincar conjecture requires a "proof" rather than a "solution", its engineering application is simpler than the N-S equation. It is not too late to consider it after Chinas comprehensive national strength has been improved. Data miningsounds like a database-related technology? ?At Ding Gaoheng''s age, it is somewhat difficult for him to do research, but it is not a problem to follow some cutting-edge topics. He even has some idea of ??the new terms in Chang Haonan''s mouth. So be it. Chang Haonan nodded: In laymans terms, it is to filter out useful parts from massive amounts of complex information. The more useful ones at present may be...production line management and...search engines." Of course there are deeper applications. Such as image recognition, machine learning and even artificial intelligence. But these will be true paintings in the millennium. It is equivalent to wheat planting not yet started. So Chang Haonan simply didnt mention it. Lets talk about it in the future when there is real hope of realizing it. ?However, Ding Gaohengs focus is not on assembly line management: A search engine...like Google? Yes, but this can only be regarded as one of the search engine technologies. Chang Haonan replied. It was also at this time that he suddenly realized something - In 1999, China did not actually have its own search engine. Some degree was only established in January 2000. Although search engines may seem inconspicuous, even until more than 20 years later, only China, the United States, South Korea and Russia in the world have their own independent technology search engine cores. ?Of course, both Dou and Google gradually used their respective market monopolies to become advertising trolls. This is a story for another day. But search engine technology itself is definitely positive. Especially in the early days of the expansion of the Internet, it greatly reduced the difficulty for beginners to get started. After all, there is still a bit of a barrier to enter the URL directly into the address bar. And if we can exert some influence on a certain degree during this critical period... Not only can Torch Group make more money. It also seems to help regulate the other party''s future development. Win-win. Its just that time is already a bit tight. ?If a degree''s core technology patent "Super File Retrieval System and Method" has been registered, it actually already has the most basic conditions for establishment. Chang Haonan can only start from improving performance. In any case, he had already kept this in mind. ?Chatting all the way, the convoy finally arrived at Wuqing Airport. This is one of the seven military parade support airports in North China. ? is also the largest of them all. Most fixed-wing aircraft, including the Bayi Aerobatic Team, will take off from here. Including several third-generation aircraft, they were also moved here from the originally planned Yangcun. Director Ding, Mr. Chang. After the two got off the bus, Zheng Liangqun, wearing a pilot uniform, was already waiting nearby and saluted immediately when he saw the two. Of course, it is mainly for Ding Gaohengjing. Chang Haonan was not a soldier, so he couldn''t return the courtesy. He just shook hands with Zheng Liangqun: Commander Zheng, are you... going to fight in person? "nature." ?Zheng Liangqun nodded: I am the pilot of the interceptor echelon, and I have just returned home not long ago. Theoretically, all military officers (excluding political commissars), including the Air Force Commander, have the ability to take off and fly. But generally speaking, due to the existence of the 45-year-old grounding line, the highest military rank for a fighter pilot who can really take to the sky is senior colonel. After all, in peacetime, if an officer is promoted to major general step by step, he will be overage anyway. ?However, as one of the only two pilots in the army who has participated in combat operations and quasi-combat operations, Zheng Liangqun happened to be promoted to major general under the age of 45. Thus, we got this once-in-a-lifetime opportunity. You have to personally participate in the training, and you have to be responsible for management... You have worked hard too. ??Although Ding Gaoheng is not Zheng Liangqun''s direct leader, he is still a superior after all, so there is no problem in saying this. How can it be considered hard work... Others want this opportunity, but they still cant get it..." Zheng Liangqun straightened his back and said with a smile on his face: Besides, Commander-in-Chief Li also specially assigned three deputies to me, which is enough to ensure that we can pass over Tiananmen Square within seconds on October 1st! While the few people were talking, the roar of an engine came from the horizon not far away. ?Chang Haonan and Ding Gaoheng turned their heads at the same time. It is 4 fighter-bombers preparing to land. ?Although it was difficult to see clearly from a distance, Chang Haonan still remembered that Zheng Liangqun had said before that if it was a 4-machine rocket team, it would be the JH-7A that had just been trial-installed and entered service. Lets go, other formations are also returning one after another, just go and have a look. Zheng Liangquns face showed a look of satisfaction: I have been a pilot for twenty years, and I have rarely seen such a spectacular scene! (End of this chapter) Chapter 762 elephant walk Chapter 762 The Elephant Walks Inside the airport, minibuses are a bit inconvenient to use. ?Especially when you have to go to the apron or even the taxiway later, the bigger the car, the greater the impact on airport dispatch. Therefore, everyone got into several soft-top Cheetah off-road vehicles and headed towards the tarmac. At this time, the four JH-7As that were descending just now also landed on the runway in groups of two. This should be the fourth in the air formation. ?Of course, the usual training processes of each formation are separate, and they are not necessarily organized in the order of being reviewed. Otherwise, Zheng Liangqun''s interceptor wedge team would still be in the sky. "After entering into small batch trial production last year, the production speed of the JH-7A has increased significantly this year. The 15th Regiment of the 5th Air Force Division and the 18th Regiment of the 6th HNA Division have begun to refit at the same time. In particular, the 18th Regiment has formed its first The complete J-7A brigade. Zheng Liangqun looked almost intently at the four aircraft not far away that had thrown away their drag chute and entered the taxiway, and said to Chang Haonan. The 18th Regiment of the 6th HNA Division belongs to the East China Sea Fleet. This division also had a 16th Regiment equipped with the old JH-7 and a 17th Regiment equipped with the H-6D. They were obviously built as a fist force to attack the sea. Even though the JH-7A model has become something that no one pays much attention to after more than 20 years, at this time, it is definitely the little sweet that all units are rushing to want. As if to provide an explanation for Zheng Liangquns words, just as several cars parked on the tarmac, the outlines of five aircraft appeared vaguely in the distance again. ?When the distance got slightly closer, Chang Haonan suddenly discovered that these four planes were not HNA''s numbers starting with 8. Chang Haonan even heard that some fighter units said that since they are called fighter-bombers, it would be okay for us to take a small loss and replace ourselves with some... Is the formation training going well during this period? Ding Gaoheng immediately found a slightly shady position, raised his telescope and looked at the horizon. "So after discussing with Commander-in-Chief Li, I decided to rename this formation the fighter-bomber formation, and then reduce the number of J-7Es in the next formation. Anyway, the J-7s... are not interesting, and then add a naval aviation wedge team. , 5 old model JH-7s. ?Chang Haonan was not in a hurry. He is not a member of the parade command organization, so it is naturally impossible for him to know the formation situation well in advance. Chang Haonan vaguely remembered that during the military parade training in his previous life, a JH-7 was damaged due to operational errors. "right." Ding Gaoheng, who was sitting in the passenger seat, turned around and asked. Smoothly, quite smoothly. ?But it is enough to prove the popularity of this model. ?Of course, the focus of fighter-bombers is bombing, and their beyond-visual-range and maneuverability are not the same as multi-role fighters. ?After all, when he modified the JH-7 two years ago, he had already taken apart the model inside and out. Director Ding, Mr. Chang, telescope. ?Zheng Liangqun nodded: Initially, this formation plan was called a naval aviation formation, consisting of four Hainan Airlines JH-7A aircraft. However, by the time the official decision was made in the second half of last year, the equipment capacity of the JH-7A aircraft had already increased. So they said that. After all, the deployment of troops for military parade cannot affect the combat effectiveness of front-line units too much. It is impossible to remove all the cutting-edge models. So these four are aircraft of the 5th Air Force Division? After a few people got out of the car, Zheng Liangqun brought two telescopes from the makeshift command room nearby and handed them to them respectively. Zheng Liangqun was about to raise his telescope, but he put it down after hearing Chang Haonans question: "The Guihang Group developed a simple version for us based on the formation flight rangefinder in the nose of the J-9 aircraft that can be attached to the wing pylon of the front aircraft. Although the effect is not as good as the one used by the performance team, But its better than nothing. As he spoke, he pointed at the four JH-7A aircraft that were already on the taxiway. Chang Haonan raised the telescope, and sure enough he saw a small, inconspicuous device hanging on the wingtips of each aircraft. It should be the one Zheng Liangqun was talking about. ?In 1999 of the previous century, the underwings of the aircraft being reviewed were relatively clean, and there was no such thing as the later (and of course the founding ceremony of the People''s Republic of China) parades where the fighter planes were hung with bombs. Mainly, airborne ammunition also has a lifespan. At present, the Air Force is still relatively poor and cannot afford to fly hundreds of aircraft with live ammunition at once. But now, these aircraft have auxiliary fuel tanks and ammunition hung under their wings. Although judging from the color scheme, it should be a training bomb, it also adds a lot of momentum to the fleet. What about the mechanical condition of the aircraft? Especially the JH-7A with a new engine? In non-war years, military parades are basically high-intensity actions, and the relevant data are still very valuable. Compared with the few turbofan 10s specially sent by the turbofan 10 project team to support them, which flew directly from the combat troops, the JH-7A, which is uniformly supported by the air force ground support units, is obviously more representative. "very good." After Zheng Liangqun finished speaking, he turned around and shouted into the distance: Team Leader Chen! After a while, an officer with the rank of colonel and wearing an air force camouflage uniform ran over from the side, stood at attention, and saluted the three of them. For a colonel, he looked very young and seemed to be in his early thirties. Chen Qin, leader of the 9910 project air formation service support team, please give instructions! This is Comrade Chang Haonan, who is responsible for the overall design and production optimization of the turbofan 9A. Please report on the guarantee status of this model. Zheng Liangqun ordered. "yes!" ?? Chen Qin took off the thread gloves on his hands, and then took out a tattered notebook from his coat pocket: "The fourth formation''s four JH-7A aircraft have flown a total of 85 hours since the centralized training, without any flight accidents. According to the support manual and daily post-flight inspections, a total of 107 parts involving the turbofan 9A engine were replaced normally. , on average, each flight hour corresponds to 34 maintenance hours, of which 11.5 maintenance hours are related to the engine... If the commander needs it, I still have all the maintenance and repair logs from the centralized training to the present!" "Compared with the J-H-7 of the fifth formation, the average number of parts replaced by each engine of the Turbofan 9A is only 45% of that of the SPEI MK202, and the maintenance man-hours corresponding to each flight hour is 55% of that of the SPEI, and it is not in the maintenance process. A fault was discovered that required complete disassembly of the engine..." As the leader of the service support team, Chen Qin is in charge of all aircraft support work at WQ District Airport, so these data will naturally be concentrated in his hands. But its one thing to get the data, its another thing to compile it and carry it with you. Its no wonder that he can become a colonel at such a young age. Being specially selected to provide military parade support definitely reflects the trust of superiors. In short, to sum up, the Turbofan 9A has completely surpassed the SPEI MK202. Recognizing this is not very important to Chang Haonan. After all, there is a gap of nearly 30 years between the engine of the late 1990s and the engine of the 1970s. But it is important for comrades in the Air Force. After replacing new equipment, especially new domestic equipment, pilots will be a little worried. At this time, even if the technicians say 11,000 words, they can''t compare with the opportunity to put the old and new models together for comparison. ?The difference is immediately apparent. When new troops change their uniforms, it will be easier to accept psychologically. Director Ding, Mr. Chang. ?After Chen Qin finished his report, Zheng Liangqun nodded, indicating that the other party could go back to work first, then turned around and looked at the two of them: I have prepared a surprise for you two today. ??As he said that, he stretched out his hand and gestured to the taxiway not far away. ?Chang Haonan turned around following the other party''s direction. ?Then his expression suddenly brightened. While listening to Chen Qin''s report, the 9 aircraft that had just landed, as well as the other 3 J-H-7 and J-H-7A aircraft as backup aircraft, a total of 12 aircraft, were already forming a long queue over there, heading towards the shutdown together. Coming from Ping. 12 aircraft, not a particularly large number. But the location where Chang Haonan and others are located is not an absolutely high place. So from their perspective, it really feels like an "elephant walking"... (End of this chapter) Chapter 763 Good machine with good ammunition Chapter 763 Good machine and good ammunition Chang Haonan, as someone who has seen J-15, J-16 and even J-20 in this formation, is relatively resistant to the elephant walk of JH-7. The main thing that impressed him was that he had the opportunity to participate in the modernization process of the Air Force and even the entire country. So, when he put down the telescope, Zheng Liangqun and Ding Gaoheng still hadn''t seen enough. What a pity, this is only half a regiment, and it cannot be considered a third-generation aircraft. ?Chang Haonan smacked his lips after speaking, picked up a bottle of water from the side, unscrewed it and took a sip. Due to the different combat missions they undertake, the generation of fighter-bombers generally cannot be copied from the fighter planes. However, this is not a serious occasion, and it is enough to understand the meaning. Zheng Liangqun took the telescope away from his eyes, looked at Chang Haonan sideways, and replied quietly: 12 aircraft, quite serious... If this had been the case in the early 1990s, one of our regiments would not have been able to muster 12 aircraft that could move at any time The normal establishment of a fighter regiment is 24 aircraft, and the on-flight rate of 50% does not seem high. However, for the Chinese Air Force in the early years, unless it was specifically grounded for a period of time to engage in a service support battle, half of the aircraft could be in flight. , they all belong to the elite among the elite. The JH-7A was equipped with two PL-5Es, two PL-11s, two YJ-81s and two wingtip rangefinders during the military parade. Although Chang Haonan has not experienced that era, he can be sure that at that time, Zheng Liangqun, who had just graduated from the aviation school and joined the front line of combat preparations, and Ding Gaoheng, who had just taken over the work of the Science and Technology Commission, definitely had different responsibilities than they show now. Just like the clouds and the wind. By this time, the 12 planes had left the taxiway and returned to the apron. Ding Gaoheng also put down his telescope: "I don''t know much about the further details, but in 1984, the service support of reference aircraft was completed by a group of technical personnel from various manufacturing plants in the aviation industry system. Unlike now, the service support of reference aircraft is completed directly from the reference aircraft. The task can be accomplished by deploying troops. However, early typical third-generation fighter jets such as the F15, Su-27, and Mirage 2000 have successively entered service in the air forces of major countries. Speaking of the 1984 military parade When the two of them talked about fifteen years ago, their tone was very relaxed, they were talking and laughing. is of course empty. ?The JH-7 prototype replaced two PL-11s with two auxiliary fuel tanks. ? New aircraft are unstable and have a high failure rate. Old aircraft have been flown too much and have a high failure rate... ??And the aircraft model must match "When we first got the Thunderbolt 11, it was still quite new to our comrades, but in the past two and a half years, the amount of active ammunition equipment, including the amount of practice during the training process, has also increased. Not to mention, there are so many equipment, such as J-8C and Basically every pilot of the third-generation aircraft unit can fire a live ammunition once, and some top troops have already begun to explore the tactical level. " In the mid-1980s, Chinas main force was the J-6, which was imitated from the MiG-19. ?But looking back now, the situation back then was definitely severe. Some JH-7s that have undergone mid-term overhaul have added the function of launching semi-active bombs, but the performance of the 232H radar is really poor in terms of air search. If the radar is replaced, both the cost and the construction period will be out of control. Therefore, the Thunderbolt 11 Generally it is still not used as the main equipment of the JH-7 unit. Even the Air Self-Defense Force next door has been equipped with F15J since 1981. For many troops, the situation they face is that they have to use first-generation aircraft to fight third-generation aircraft. Its no wonder that the scene of 12 JH-7s opening up the formation was already satisfying for the two of them. Let me see, its pretty good to have these aircraft now. If there is anything that feels a bit worse, its these airborne weapons. After all, these are memories of bitterness and sweetness. The output of the J-7I was very small. Until the J-7II was discontinued in 1986, there were still many technical defects that could not be solved. In particular, the turbojet 7B had an ablation of the fuselage in the early stages of installation due to the increased combustion chamber temperature. The problem. Zheng Liangqun also chimed in: "We kicked the Qiang 5 out of this military parade before because we found that the fuel level in this model was too low last time. After completing the entire parade mission, the remaining fuel was very tight. In case of special circumstances, it would need to circle twice. , the oil level has reached the lower alarm limit..." Zheng Liangqun looked at the planes that parked at corresponding positions on the tarmac in front of him and said to Chang Haonan. "However, once you really start to study tactics, you will find that semi-active missiles, especially mid-range semi-active missiles, still have too many problems. Although they can shoot beyond visual range, the aircraft cannot make large maneuvers before the missile hits the target. , otherwise it will be unlocked. "There is also the Eagle Strike 81, which is the same. However, our troops have not used this model before. It was during the last embankment construction operation. I heard from comrades in the Naval Aviation that the 50-kilometer range of the air-launched model is a bit short. , especially against the Americans and the Maritime Self-Defense Forces Aegis system, even ultra-low-altitude penetration is a bit unsatisfactory. For Chang Haonan and Ding Gaoheng, this is very direct feedback from the front line. Luoyi 612 Research Institute is already working with the Pennant Design Bureau to develop the Thunderbolt 12. Normally, it is estimated that it will be test-fired from the end of this year to the beginning of next year. ?Although Chang Haonan has now become the leader of the Aviation Power Group, thanks to his position within the Committee of Science and Industry, he still has some understanding of the situation in the aviation industry next door: In addition, the Institute of Aerospace Technology is also developing an ultra-long-range air-to-air/air-to-ground multi-purpose missile, which can be used to counter radiation or deal with large targets at ultra-long distances. Ultra-long range? Zheng Liangqun just said it casually, but he didnt expect to receive feedback on the spot: "how far?" For air-to-air missiles, although the range on paper is not the only important performance, being able to fire first before the enemy is definitely a huge advantage in air combat or air-ground confrontation. Even the criticized semi-active ammunition can have huge tactical value as long as the range is far enough. "Well...it is basically the Soviet R33. We have improved the new missile wings, warhead and seeker. According to the national military standard range, the air-to-air range is about 200 kilometers, and the air-to-ground range...may be a little closer. " ??This model, which is currently tentatively named Thunderbolt 13, was able to be approved because of Chang Haonan''s contribution. Not only that, he also developed the passive search algorithm of the seeker. ??And related technologies have also become the key to reversing the situation in the Balkans in the first half of the year. It can also be regarded as indirectly preserving the air-to-air missile research and development department of the Aerospace Technology Research Institute. So Chang Haonan is naturally very familiar with performance indicators. Take less? ?Zheng Liangqun almost dropped the telescope to the ground. ? He ??originally thought that it would be quite good to double the range based on the Thunderbolt 11. The result was unexpected, it was almost an order of magnitude greater. ?Although Zheng Liangqun has also heard that the AIM54 equipped by the Americans has a range of nearly 200 kilometers. But what you hear is what you hear, and it belongs to someone else. In fact, the theoretical limit range of the later models of the R33 when using the MiG-31 as the carrier aircraft can be further, but that data is too false. If it is replaced by the normal standard (10,000 meters, the carrier aircraft and target are 1.2 times or 1.4 Double the speed of sound), there will be a huge discount. After improving the elastic wing and optimizing the path algorithm, this number was stabilized at around 200 kilometers. In actual combat, considering that the target cannot fly against you all the time, the effective range should be shorter. But no matter what, for the Chinese Air Force, which has just adapted to the diplomatic combat distance of 30-40 kilometers, the difference between 200 kilometers and 300 kilometers is actually very small. Because it is a number with no concept at all. The Chinese Air Force currently does not even have any radar that can detect a target the size of a fighter jet 200 kilometers away... 200 kilometers. Chang Haonan smiled and replied: The test should not be far away, but unfortunately it is difficult to measure the maximum range effect with the existing models. Zheng Liangqun did not answer this time, but opened his mouth slightly, as if he was imagining what it would be like to have an air-to-air missile exchange between ourselves and the enemy 150 kilometers or more apart. After thinking for a long time, he felt that it was difficult for fighter jets alone to cope with such a level of air combat. Only the early warning aircraft ?Thinking of this, Zheng Liangqun glanced back and forth between Ding Gaoheng and Chang Haonan again. Obviously I want to ask. But I feel like Im a little out of character. After all, the domestically produced fighter jets are just now on the right track, so we are beginning to consider the domestically produced early warning aircraft... In any case, he did not speak in the end. ?As a result, the atmosphere between the three of them fell into a slightly strange silence. Until the roar of engines from another group of planes broke the silence. This time, without even using a telescope, Chang Haonan could identify the six J-9s from the iconic pointed nose and double delta wings. The normal gray paint indicates that it is not an aircraft of the Bayi Aerobatic Team. ?That is the training aircraft echelon at the flight academy. ?Chang Jiayao should be on the last or penultimate plane among them. Mr. Chang. Zheng Liangqun came over and said: According to our training schedule, the morning is flight training, and the afternoon is commentary and training review. In addition to lunch, there will be about two hours of free time. Of course, you cannot leave the camp. You see..." The meaning of this statement is very clear Chang Jiayao''s flight training is over, and Chang Haonan will definitely not be able to go directly to the tarmac to find her. The impact is not good. ??It will also bring a lot of unnecessary pressure to Chang Jiayao. So you should go to the living area and wait for the rabbit. Commander Zheng, how about you take us two to the living area? Ding Gaoheng next to him also created opportunities for Chang Haonan: Ive heard that the standard of the air crew that you are responsible for during the military parade is even higher than the standard of the usual air crew. It just so happens that we can catch up today, how about we both lend a hand? (End of this chapter) Chapter 764 Go to the capital and watch the military parade! Chapter 764: Go to the capital and watch the military parade! Over the airport. In the cockpit of No. 6 of the training aircraft echelon, Chang Jiayao was staring closely at the flight data displayed on the HUD in front of her, as well as the airport runway that was gradually sweeping backwards on the side of the cabin. According to the flight training plan, they had to make a final 180 turn before landing. Attention all aircraft, the echelon turns 180 and prepare for approach. ??The familiar voice of Zhang Jiujiang came from the radio. As a senior flight instructor, he naturally serves as the lead pilot in aircraft No. 01. At the same time, in order to ensure that the leader''s line of sight was not disturbed, Aircraft No. 01 was the only one that did not carry a student pilot in the front seat. Immediately afterwards, the entire flight formation began to turn to the left without changing the formation, preparing to align the nose of the aircraft with the runway. Units 5 and 6, pay attention to raising the altitude. When the aircraft turns at a large angle, it needs to roll and yaw at the same time. During the roll process, the aircraft in the entire echelon must be on the same plane as the aircraft wing. Therefore, the farther out and further back, the In order to ensure the consistency of the overall formation, the aircraft needs to perform a larger range of movements during the turning process. Looks a bit older... In short, it was not until the training camp began that everyone gradually adapted to the new training requirements. Chang Jiayao turned her head subconsciously when she heard her name, and first saw a person wearing a pilot uniform. ??Although daily flight training does not necessarily follow the order of the formation, as the last fixed-wing aircraft formation, their route is the farthest, and the speed of the aircraft is relatively slow, so they usually have to return last. ?After reporting the last altitude data, Chang Jiayao lifted the goggles on her flight helmet and took out a camera from the pocket of her flight suit. But if you take a closer look... ?Although the back seat of the JJ-9 has been specially raised during design, it is not like the J-7, where only the back of the head can be seen from the back seat. But as October 1st approaches, even a person with a strong psychological quality like a pilot will feel a bit burdened every time he trains. Seeing the usually dignified instructor being trained like him by Zhang Jiujiang, I felt a sense of dj vu, like "the unlucky me and the unlucky instructor went to meet the awesome master, but the two of them sat in rows and were criticized together." . Considering that the trainees in the front cabin have nothing to do most of the time during the flight, the academy simply gave each person a camera so that they could take some photos of the National Day military parade from a bird''s-eye view. Air Force promotional material. Most of the time, we have to endure three meals a day. The accompanying student pilots also had a hard time. ?Two puffs of green smoke rose from the surface of the rear wheel. The speed brake and speed brake were opened at the same time, and the speed quickly dropped from 200 to close to 0. After sorting out the flight equipment and filling out the flight record sheet, the flight instructors still need to check the status of the aircraft with the ground crew, but the student pilots can already be dismissed. After all, they had been training intensively for several months, and soon the entire 6-machine formation completed the turn as planned. Commander Zheng! The two of them walked and chatted, and soon returned to the living area. I took a special look when we landed just now. Our return sequence should be considered early today. Finally, we dont have to eat leftovers..." However, since the aircraft has a certain elevation angle during the final landing process, the field of view is definitely not as good as that of a serious third-generation fighter jet. ?) ?It is not uncommon for some young talents who have not yet started a family to strike up a conversation during their free time. Chang Jiayaos eyes shifted to the multi-function display in front of her, and at the same time she reported several important parameters to her fellow instructors in the back seat. ?Although they certainly dont dare to let them touch the control stick directly, its okay to simulate the flight process in their mind and write a flight report when they go back. Todays training is going very well. The formation is disbanded and ready to land in order! Not only do they have to turn themselves, but they also have to pivot around the formation axis, which places high demands on the pilots. Secondly, the person sitting in front is a student pilot after all, not a real ballast. For veteran pilots like them, it was a long time ago that they learned to fly in formation. ?However, at the beginning of this military parade training, facing the sudden increase in formation standards, the instructors still regained the feeling they had when they were students. Unit No. 5 (6) received! By the time we get to the canteen, there will be nothing left. ?But I didnt dare to really laugh. Mainly because its hard to hold it in There was no military rank on the flight suit, so she subconsciously thought it was a pilot from another formation. Many pilots may not be able to catch such an opportunity to participate in a major training mission in their entire career. As one of the few women in the entire camp, they usually receive a lot of attention, and their names are known to almost everyone. ?Zhang Jiujiangs voice sounded again, making the pilots of several wingmen, especially the flight instructors, breathe a sigh of relief. After circling in the sky for several times, the two planes No. 5 and 6 finally touched the runway lightly. Just when the two of them walked to the door of the cafeteria and were about to wait for the other students to file in, a familiar voice came from next to them. ?Li Lingchao, who was flying with No. 5, walked up to Chang Jiayao and said while rubbing his waist that was a little sore due to the vibration of low-altitude flight. Chang Jiayao! Now they can experience it before they graduate from aviation school, so they must take this opportunity to practice more. The two of them quickly stood at attention. As the commander of the air formation and the formation leader of the interceptor echelon, Zheng Liangqun is one of the best in the camp in terms of prestige and strictness. Take a break. Zheng Liangqun waved his hand, indicating that the two of them did not need to be so nervous: Chang Jiayao, come in with me first. Chang Jiayao and Li Lingchao looked at each other, but followed Zheng Liangqun into the cafeteria, then went upstairs to an inconspicuous corner on the second floor. ?Slightly strangely, the tables around this corner were already filled with people, making the rest of the place seem a bit deserted. ??And judging from their attire, these people dont look like theyre from inside the military parade village ?While she was wondering, she saw two people, an old man and a young man, sitting face to face at a square table. She doesnt know much about the older ones. But for the young one, she is too familiar. "elder brother?" Chang Jiayao almost shouted out loud, but considering the negative impact in public places, she finally suppressed her voice, which made her voice a bit strange. The two people at the table looked at her at the same time. Director Ding, this is my roommate. In the end, Ding Gaoheng called out the name directly: Chang Jiayao, right? "Um?" ?Chang Haonan was stunned for a moment. You dont think the organization doesnt even check your family background before appointing important positions, do you? Ding Gaoheng said with a smile: The seventh batch of female pilot cadets recruited by the Air Force are no less women than men. He was only wearing khaki casual clothes and looked like an ordinary little old man. Then he looked at Chang Jiayao and Zheng Liangqun: Lets all sit down. ??Although Chang Jiayao still didn''t know who this old man was, she saw that the other man was talking to Zheng Liangqun in this manner, and knew that he was probably not an ordinary person. For a moment, he was stunned and didn''t think of any action. In the end, Chang Haonan pulled him to sit next to him. ?However, her current identity is actually a family member of Chang Haonan, so it is not complicated. As long as we really talk about everyday things, that''s fine. By the way, Xiao Chang. Ding Gaoheng picked up the spoon, lowered his head and took a sip of soup: "Your parents...should be coming over for the National Day, right?" In terms of reception, do we need to make some organizational arrangements? ?Although strictly speaking, it is a private matter, but at this time, these matters are not strictly controlled. Besides, the situation during the National Day is special. Without reception, the two old people would not even be able to enter the third ring road. Yes, the flight is tomorrow. Chang Haonan nodded: In terms of reception, I have already contacted the comrades of the National Day ceremony preparation team. In addition, I have no work arrangements in the past few days before the National Day. ?At the same time, Liucheng. County Public Security Bureau. ?Chang Yuanchao knocked on the door and walked into Director Lu Yuan''s office. Lao Chang? The director raised his head and saw Chang Yuanchao standing at the door: Come in and sit down! Hand said, he motioned to the chair opposite the desk. Chang Yuanchao was originally a senior investigator and was responsible for the daily work of the criminal police brigade. It was only when he got older that he took a back seat. Even before, he still had some prestige in the county bureau. Whats more, theres something like Chang Haonan Although no outsiders knew what kind of work Chang Haonan was doing due to the tight-lipped nature of the old couple, considering that the superiors requested special attention to the work and life of Comrade Chang Yuanchao, it was obviously not a trivial matter. Just sit down, Im here to ask for leave. ?Chang Yuanchao put the things in his hands on the desk. It is an application form and a beautiful envelope made of red cardboard. I have to go out on November 1, so I want to ask for leave two days in advance. I want to go... ?Before he finished speaking, he was interrupted by Lu Yuan opposite: Hey... you have two days of personal leave, just say hello to me, why do you want to make it so formal..." As he said that, he was about to push back the vacation application form. If you take additional leave through formal procedures, your salary will be affected. ?Although Lao Chang may not care about this now, this is an attitude. ?However, at this moment, he noticed the gilded writing on the red cardboard envelope. Office of the Leading Group for the 50th Anniversary of the National Day Celebrations. Lu Yuan''s hand shook slightly. ?Then, he looked at the reason item on the vacation application form October 1, went to Beijing to participate in the 50th anniversary celebrations of the National Day. Old Changthis Lu Yuan touched his chin and thought for a while: This is an invitation from a superior unit, so how can it be considered a holiday... It should be a business trip... "ah?" Chang Yuanchao himself never thought that such a statement could be made: Its not necessary if Im on a business trip. Theres someone in the capital to pick me up According to our regulations, invitations to participate in ceremonies, ceremonies, and learning activities held by superior units are inherently part of the travel arrangements. ?? Lu Yuan said and took out a business trip application form from the drawer: Furthermore, you are not just an ordinary superior unit, you have also gone up to the sky! Its an honor for our entire bureau that you can attend the National Day ceremony on site. If you go on personal leave, then you dont want to let the bureau take advantage of this? Having said this, Chang Yuanchao naturally had no choice but to refuse: Thenthank you, Director! ?Lu Yuan didnt even ask Chang Yuanchao to do anything. He helped him fill out the application form and then signed it: "Thank you, thank you. Let me tell you, when the time comes, you can take two photos at the scene and hang them in our honor room. Write below, ''Comrade Chang Yuan Korea of ??our bureau was invited to participate in the 50th anniversary celebration of the National Day.''" Its me, the director, who should thank you. After finishing speaking, he returned the invitation and application form to Chang Yuanchao. After thinking about it, he left the application form with himself: Ill go find the political commissar to sign. You should go back early today to prepare! (End of this chapter) Chapter 765 October 1st, sunny Chapter 765 October 1st, sunny ?Chang Yuanchao and Zhou Li flew to the capital on the evening of September 30th. Its just that the plane landed at the Capital International Airport this time. ?This place is much bigger than Nanyuan, and it took the old couple a long time to find it. Chang Haonan and Zhu Yadan were still waiting outside, Originally, the former should try to avoid appearing in crowded places like large airports. At least you should wait in the car. ?However, because the National Day ceremony was the next day, the entire capital went into strict security mode. ? Even at the Capital Airport, there were not many people at all, which was completely different from the crowds in the past. ??And there are several times more guards standing guard than usual. Xiaonan. There were only two of us on the plane just now. It felt like a chartered flight... I didnt know where to go after we got out. ??Zhu Yadan, who originally belonged to the special service department, also took advantage of the situation and was transferred to the 9th Bureau of the Guard. Incidentally, he was also promoted to a military rank. "Normally, tomorrow is the celebration. Starting from noon today, the access to the city and the main roads within the city will gradually begin to be controlled. You will not be able to pass without a pass." The feeling of security is full. ? People in the 1990s generally did not have this awareness. In addition, Chang Yuanchao worked as a policeman all year round. In order to get on and off the car quickly, he did not have the habit of wearing seat belts. Hello, uncle and aunt. ??Zhu Yadan said a simple hello as usual, took the luggage from the two of them, and then handed it to a colleague in another car After seeing Chang Haonan waiting outside, Chang Yuanchao waved towards him and quickened his pace. After several people got into the car, Chang Yuanchao scratched his head in embarrassment and said: At first I thought it was the airport from last time, but I ended up going around and around and almost got lost in it Including Chang Haonan''s car, according to Mr. Zhang''s previous intention, the number of cars increased from a single Crown to a random combination of several cars and license plates. And a Santana as a guard car. Speaking, he leaned over and fastened his seat belt. By the way, Xiao Nan, has Jia Yao contacted you recently? ?Zhou Li, who was sitting in the back seat, also asked immediately. Chang Haonan smiled: Now he is the leader of the team responsible for Chang Haonan''s safety. ?For example, today, because I had to pick up someone, I changed to a Ford MPV that was not very common in 1999. Nanyuan Airport? Because it is one of the departure airports for tomorrows military parade air formation, it has been closed to civil aviation since a few days ago. After solving the Allied operation in a way that no one expected, Chang Haonan''s security was raised to a higher level. Chang Jiayao was selected to participate in the military parade, including going to Jinmen to participate in training. Naturally, she had already told the old couple. ?However, after the training camp started, it was not so convenient to make a phone call. ? ? Cell phones are definitely not allowed in the military camp, and the limited fixed-line phones can only be used at night. For female soldiers, the time before lights out is already very tight, so they rarely queue up. "I just went to Jinmen to see her two days ago. She asked me to bring something to you. She said she would be able to go home in mid-October." Shouldnt they be in class in mid-October? They thought the students might have extra leave. After all, they were training throughout the summer, so I didnt ask in detail Due to road control, there were not many cars seen along the way. Chang Haonan has never seen such smooth roads in the capital in his two lifetimes. So when everyone got home, it was not even meal time. ?Zhou Li originally wanted to cook with Zhang Luo, but was stopped by Chang Haonan: Ive already made a reservation from the Jingcheng Hotel, and I think it will be delivered to you soon. I wont bother you tonight... ?Given the status of the Jingcheng Hotel, there was naturally a way to obtain a pass and deliver meals as usual during the days when the martial law was not yet complete. Look at you kid, what are you doing so wastefully Zhou Li complained, but the joyful expression on her face showed that she was still happy. ??Chang Yuanchao, who was already tinkering with trying to turn on the TV next to him, did not save face for his wife at all, and said to Chang Haonan: Look at your mother, her lips are grinning to the sky, and she still has to pretend to be reluctant Just as Chang Haonan was about to reply, he saw the sharp gaze cast by Zhou Li on the other side. Weak, pitiful, and helpless.jpg Chang Yuanchao also understood the TV at this time. After noticing Zhou Li''s reaction, he also shrank his neck, then sat on the sofa with the remote control and stopped talking. Soon, the sound of the Beijing weather forecast came from the TV. "Your dad has been watching the weather forecast since last week. Just now on the plane, he saw a cloud in the distance and told me that he was worried that it would rain tomorrow..." ??Zhou Li simply packed her luggage and was not polite, but she still sat down on the sofa next to Chang Yuanchao. What do you know? The weather forecast these days is not accurate at all. It changes from day to day. Last week, it was said that today would be sunny. But before boarding the plane in the morning, it was said that it was raining in Beijing, which delayed it for several hours..." Chang Yuanchao adjusted his posture as he spoke: If the weather is bad tomorrow, we wont see Jia Yao The weather is fine and I cant see, but Jia Yao is on the plane... Chang Haonan felt a bit dizzy as he felt like he had been stuffed with dog food, so he quickly interrupted the old couple''s display of affection by reading and writing: Dad, dont worry, the weather forecast will change in the next few days, just to create a good weather window for the National Day. ?Chang Yuanchao suddenly became quiet and turned to look at Chang Haonan. After a while, he asked with doubts: Can...our country...can control the weather now? Chang Haonan almost couldnt hold back his words: "is not what it means" If you find that it may rain in the next few days, use artificial rainfall to eliminate the cumulonimbus clouds before the National Day, so that the weather conditions on the National Day will be relatively better. Even if it is not sunny, the clouds will not be too low. As if to confirm Chang Haonans statement, the weather forecast also started at the right time. Beijing, sunny, southwest wind level 1, temperature 26-11桭 The next day, October 1st. It is indeed a sunny day. ??Early in the morning, Chang Yuanchao and Zhou Li were already up before dawn. Or to be precise, the old couple barely slept last night. In fact, even Chang Haonan tossed and turned very late, and he didnt even know how he fell asleep... ?When Chang Haonan walked out of the bedroom after washing, he saw the two of them already standing in the living room, even changing their clothes. Zhou Li wore a formal dress that she rarely wore before, while Chang Yuanchao... He directly changed into a police uniform. In 1999, police uniforms were still green, similar to army uniforms. Unfortunately, there is no corresponding dress for the 95-style police uniform, so I had to wear a spring and autumn uniform with relatively crisp fabrics. "Dad, it''s okay... I even brought the uniform here." As Chang Haonan went downstairs, he looked at Chang Yuanchao, who was lowering his head and sorting something out. Its not just a uniform...your dad brought all his wealth and life over the years this time. ??Zhou Li was helping Chang Yuanchao tie his tie at this time. She raised her head and said to Chang Haonan with a smile, then patted Chang Yuanchao on the shoulder and motioned for him to turn around. At this time, Chang Haonan discovered that his father had specially hung several medals on his chest. From the second-class and third-class merit he received when he was in the army, to becoming a third-class hero in the public security system after joining the police, this can be regarded as a summary of Comrade Lao Chang''s most of his life. Xiaonan, I remember that you should have won many medals. Do you want to wear them too? Chang Yuanchao fastened his buttons, stood upright in the middle of the living room, and asked Chang Haonan. "mine" ?Chang Haonan thought for a moment. One disadvantage of awarding in China is that they particularly like to wear ribbons, especially for high-level honors. Moreover, ribbons are generally extremely long and are nicknamed "athlete medals", which are very inconvenient to wear. ??Moreover, he still has several medals in his hand that cannot be made public for the time being. "never mind." Chang Haonan shook his head: I have so many medals here that I cant decide which ones to wear and which ones not to wear at the moment, so I might as well leave them all at home. Anyway, the invitation didnt say that I must wear them Chang Yuanchao''s face froze, and he felt that his son''s words revealed a bit of strange show off... The second and third class merit medals on his chest suddenly felt dim. Ahem He coughed twice: Then...lets leave now? This is not urgent. Chang Haonan shook his head, came to the living room, and started tying his tie in front of the mirror: There will be a bus to pick us up later... (End of this chapter) Chapter 766 On the viewing platform Chapter 766 On the viewing platform ?There are three main situations where people can be invited to watch the military parade on site (of course, those who go directly to the tower must be excluded here, only those on the viewing platform are counted). First, like Chang Haonan and Ding Gaoheng, they have reached their positions and are in the capital. They are still idle, so they have to go and take a look. This kind actually accounts for only a small part. ?Because the vast majority of people of sufficient level will be so busy that they hit the back of their heads on October 1st and have no time to attend. The second one is the foreign representatives in China. It goes without saying that all of them will be invited, whether it is for the purpose of universal celebration, to demonstrate the majesty of a great country, or simply to show off. ?However, the number of people is actually not that many. Counting all countries, regions, and international organizations, there are only about 300 people, which together cannot make up to 1,000 people. ?Most of them were invited as outstanding representatives of all walks of life like Yan Yongnian. Including Chang Yuanchao and Zhou Li, this is also the case. So, when the old couple first got in the car, they subconsciously thought that the other people in the car were in a similar situation to themselves. "You can watch whatever you want on the stage later. Be honest here and don''t cause trouble to Xiaonan!" ??Chang Haonan and the three others were placed on the westernmost side of the east viewing platform. ?From the position where you get off the car, you can even directly see several towering radars in the distance. ??When several minibuses arrived at the ceremony site one after another, the sky was just getting bright. But no matter what, being relatively in the middle is always a good thing. ?That may just be the command vehicle of the Army''s field air defense system. Shorter equipment will not be visible. ?But even so, Lao Chang still subconsciously stretched his neck to take a look over there. Chang Haonan, who was sitting next to him, also noticed something strange about his old father, so he gave the latter a look to reassure him. But the matter of pick-up and drop-off is obviously a recent issue of zoning. ??Although they are not the ones in the front row, they are familiar to everyone on Xinwen Network... And where Chang Haonan lives... ?In Chang Haonan''s impression, the 1999 military parade in the previous life did not seem to have any air force radars on display. He has dealt with a lot of electronic technology systems in his life, and he has never heard of any new models developed by them. Lao Chang felt a little stiff for a moment. In short, Comrade Lao Chang soon discovered that he seemed to have seen some of the faces in the car on TV. In fact, if it were normal, these people would definitely have their own cars. ??Its just that on the day of the National Day, in order to make room for the parade around Changan Avenue, ordinary leaders are definitely not qualified to use it. As a result, Zhou Li pulled back this somewhat unsightly move: ?However, the troops on the ground receiving the review, as well as the people responsible for the performances and celebrations on the scene, are already in place. Actually, Chang Haonan didnt understand exactly what the arrangement was at the beginning. As more and more people took their seats, he quickly recognized a few familiar faces in the crowd. They are all model masters who have worked together before, or at least have a relationship with them. ?There are also People''s Liberation Army officers. I wish you all the best, long time no see. How is your work lately? ??This is Zhu Yusheng, the chief designer of the domestic third-generation main battle tank, whom Chang Haonan met when he was working on the die forging press at the Northern Vehicle Research Institute. Mr. Chang? Zhu Yusheng shook hands with Chang Haonan with his left hand: Thanks to you, the progress of the new tank is much smoother than expected. More than a dozen prototypes have been built. They will be organized into a separate formation to be reviewed today..." Commander Shen ??This is when Chang Haonan went to the 4th HNA Division to test the JH-7, and the commander Shen Tao was driving the Y-8J there. There should be one Y-8J and one Y-8X in their group today, but for some reason Shen Tao himself appeared on the ground. Mr. Chang Hey...forget it, I was on duty at the South China Sea Fleet during the selection of aircrews for training. When I got back from training, the day lilies were already cold..." ?After the embankment building operation, the Chinese Air Force and Naval Air Force gradually increased the intensity of patrols in the South China Sea. Although the Y-8J proved to have some flaws in that operation, at least it was not suitable for use against NATO and its allies, after all, the air time and sea detection capabilities were not bad, and the flight cost of the turboprop transport platform was relatively low. , very suitable for containing opponents in indirect confrontations. Thats a pity indeed ?Chang Haonan couldn''t think of any good way to comfort the other party. At Shen Tao''s age, it is absolutely impossible to catch up in the next ten years. Deputy Commander Huang ??Regiment Commander Huang Linqun, who was stationed at Jiangling Embankment two years ago, has now achieved the rank of senior colonel. Guo Gong... ????It is naturally Guo Lin who has a deep cooperative relationship with Chang Haonan. ??Of course there are some people who are beyond his expectation. Researcher Xu? ?Chang Haonan looked at Xu Yang behind him with shock on his face. "I reported it from the Institute of Computing Technology, a representative from the scientific research community. How is it? Are you surprised?" ?? Xu Yang was dressed fashionably, took off the sunglasses on his face, raised his hands to block the sun, and then looked at Chang Yuanchao and Zhou Li next to Chang Haonan: These two should be Oh, its my father and Jia Ci... Chang Haonan himself never expected that in less than four years, he would already have such a broad network of contacts. ?Even before I had even finished greeting everyone I knew nearby, the orchestra across the street had already played the "Welcoming March." This is the signal for the review chief and special guests to appear. Sure enough, warm applause erupted from both sides of Chang''an Avenue. Before this, Chang Haonan always thought that using thunder to describe applause was an exaggerated metaphor. But this time, he realized that it could also be a normal description. Even the sound of military music can be drowned out. Of course, the main force of applause was the tens of thousands of ceremony staff opposite. Otherwise, these thousands of people on the viewing platform alone would not have been able to create such an exaggerated effect. About two or three minutes later, an energetic voice sounded: The gathering of all walks of life in the capital to celebrate the 50th anniversary of the founding of the Peoples Republic of China begins now! Sound a salute! ??As the leader who presided over the ceremony on the city tower finished speaking, the enthusiasm instantly turned into silence. The applause and military music all fell silent. "boom-" "boom-" The salute of fifty guns was fired to pay tribute to the fifty years that the Republic has gone through. At the same time, the national flag guard set out from both sides of the Monument to the People''s Heroes, holding a five-star red flag and converging into a military-colored torrent, slowly walking along the rolled-out red carpet towards the flagpole standing on the square. The eyes of everyone on the viewing platform and the tower were focused on them, the national flags in their hands, and the monument behind them. History will never forget the sacrifices made by millions of Chinese heroes who fought for the independence and liberation of the nation. Pahpah ?The moment they crossed the dividing line, the guards changed their steps to goose-step, and the rhythm of the neat steps was clearly audible even in the sound of the salute. ?Under the flagpole in the square, the 12 ranks of team members were divided into two again and re-arranged. Three flag bearers fixed the national flag to the rope of the flagpole. ification The rifle is tilted down from the shoulder and touches the ground. At the same time, the 50th gun salute was fired, and the scene returned to silence. Everyone stands at attention! Raise the national flag and sing the national anthem! Even Chang Haonan, who thought he was used to big scenes, felt his heart beat twice irregularly when he heard these words. Chang Yuanchao, who was next to him, stood up even more. "salute!" A command was given not only to the PLA and Armed Police commanders and fighters present, but also to everyone The honor guard raised the rifle to his chest again. ??Across Chang''an Street, a sea of ??golden flowers turned into the shape of the gold and red national emblem. ?Young Pioneers put the five fingers of their right hands together and raised their heads high... Following this, the conductor of the military band raised his baton again. Arise, you who do not want to be slaves The sonorous and powerful national anthem resounded through the sky. The five-star red flag rises slowly against the sun that has just emerged from the clouds! (End of this chapter) Chapter 767 Military Parade of the Century Chapter 767 Military Parade of the Century After the national flag is raised, there is a military parade. That is, the troops under review line up, and the parade members pass in front of the line for review. A specially modified extended version of the Hongqi sedan drove up Chang''an Street along the Jinshui Bridge with a red carpet, and stopped in front of another car that had been waiting for a long time. ?There is silence between heaven and earth. ?Li Liangxin raised his hand and saluted the old man opposite: Comrade Commander, the troops under review are ready. Please review them. The commander-in-chief of the parade, Li Liangxin! "start!" "yes!" While the military parade march was played again, two red-flag vehicles started staggered and slowly drove toward the troops being reviewed who were already ready. On the viewing platform, a teenage boy wearing a red scarf turned his head and looked at the old man behind him. Greetings and answers came back and forth, sonorous and powerful, converging into a huge sound that echoed over the ten-mile street, like the echo of history. The troops being reviewed passed through the reviewing stand and were reviewed. ?While the old man and the young man were talking, the review car had already returned to the north of Jinshui Bridge. Hello, Chief As his words fell, the military band played the march again. And the National Day is a universal celebration. Hello, comrades! Being a soldier is hard work. Not only is it hard, but its also dangerous... Grandpas arm cant be lifted when its cloudy or rainy. Its the injury caused by being a soldier when he was young... Thats why our army is called the Peoples Liberation Army Comrade Lao Chang worked as a grassroots cadre in the army more than 20 years ago. Later, he changed his career and became a policeman. He even went to the front line to fight. ?At this time, the old man understood and showed a cheerful smile. The grandpa who was sitting in the car just now kept saying that comrades have worked hard. Shouldnt he answer that its not hard? ?He raised his head slightly, his slightly cloudy eyes shone slightly, as if he saw himself when he was young decades ago: The third-class merit award is a routine award after serving in third- and fourth-category marginal areas for several years. Li Liangxin may be the commander-in-chief of the military parade with the best Mandarin skills since the founding of the People''s Republic of China. In a few years, you should be able to learn this text. He answered slowly: The old man could not understand his grandson''s problem for a while. At the head of all the formations is naturally the honor guard of the three armed forces holding the military flag. Good job, comrades! Why do they answer like this? Obviously, for primary school children, this logic is relatively straightforward. Secondly, for other spectators, there is no sense of participation in the military parade. After all, it is impossible for everyone to ride there together, and the almost endless queue in the distance cannot be seen clearly from the viewing platform. How can it not be hard work? The atmosphere at the scene became lively again after the big leader gave his speech. ??The latter was wearing a Type 58 Air Force uniform. His figure was already slightly stooped, but he still looked energetic against the backdrop of the military uniform. When the sound gradually subsided, the little boy stood up on tiptoes, leaned into the old man''s ear and asked. Answer what? The old man touched his grandsons head: There will be sacrifices when we struggle, and people often die. But we think about the interests of the people and the suffering of the majority of the people. When we die for the people, we die well..." So, the big head is actually still a disaggregated form Although todays celebration is customarily called the 50th Anniversary National Day Military Parade, the real military parade actually only occupies a very small part of it. Serve the people! ?Chang Yuanchao, who was next to Chang Haonan, straightened up a lot almost instinctively. At least the words "distribution, start" are quite clear. Those who made the celebration plan also knew very well that everyone must have an eye-catching experience. This is how his second-class merit comes from. "grandfather." First of all, the duration of the military parade was too short. The leaders walked by in cars and ended in five minutes. "However, because our army serves the people, whether it is hard work or danger, it is secondary and acceptable." Chang Yuanchao''s eyes followed the honor guard of the three armies. It was not until they crossed Xihuabiao and returned to the same pace again that he turned back with some reluctance: Actually, when I first joined the army, I applied to join the honor guard, but was rejected because my height did not meet the standards. Even though it was accompanied by the sound of marching music, the viewing platform was separated from the opposite side by a whole street and the Jinshui River, so it was not impossible to hear the voices. ?Chang Haonan glanced at Chang Yuanchao with some suspicion: Dad, how dare you go with your conditions... Because he was worried about overly damaging Lao Chang''s self-confidence, he still didn''t finish the sentence when he arrived. Hey...the standards for selection of honor guards also change with the times. When I was young, I was quite tall among people of my age. I could have touched the minimum standards for the selection of honor guards. When I was that year, I had filled in my application form, and the Ministry of Armed Forces suddenly said that the standard had been raised by 3 centimeters, and I was transferred to the field force Obviously, this incident carries a very important weight in Lao Changs memory, otherwise he wouldnt have remembered it for so many years Chang Yuanchao''s height in 1999 would only be considered slightly higher than the average height of northern men, but if it were more than 20 years ago, it would indeed be more conspicuous as he said. Lao Chang turned his attention again to the subsequent queue passing in front of him. For Chang Haonan, a reborn person who has watched the documentary of this military parade, the foot formation has not changed much compared to the previous life, so there is not much to watch. The 1999 military parade focused on highlighting the construction of the military system and personnel training for the new century, so there were an exaggerated five formations of college cadets from each branch of the military, so much so that the on-site commentators were Instead of explaining them one by one, I lumped the three in the middle together. The only change was that the original two militia squadrons were reduced to one due to the increase in the number and size of the equipment squadrons. ?However, for someone like Chang Yuanchao, who has served as a soldier, it is obvious that there is still something to be desired. Dad, are there any of your old troops here? ??Taking advantage of the gap between the foot formation and the vehicle formation, Chang Haonan approached and asked. My old troops were all laid off later ?Chang Yuanchao''s eyes were filled with nostalgia. But the nostalgic look in his eyes was soon replaced by excitement and joy. Because on the street in the distance, a rolling torrent of steel has appeared. When the tanks of the first vehicle formation appeared in everyone''s sight, the applause on the scene even drowned out the roar of the diesel engine and the sound of rubber tracks running across the asphalt road. ?The military band also played the "Chariot March". ?Even the leaders on the Tiananmen Gate Tower couldnt suppress the smile on their lips when waving greetings... Men, who doesnt like armor and cannons? Since it is not Haonans main area of ??effort, Huaxias ground equipment is still relatively monotonous at the moment. Theres nothing fancy about it. ?Hence, just like in the previous life, three tank formations were assembled. ? ? The commentator will naturally not reveal the equipment model directly. He will just name it after the tank unit X and the new main battle tank, and then enter the routine evaluation process. But the more experienced people can still see that the last generation of the six teams of road wheels, the 88B main battle tank, is the "round head" in the lead. Chang Haonan noticed that from a little distance away, the frequency of foreign guests invited to the ceremony raising various cameras or telescopes was obviously much higher than before. ?At this time, the degree of openness of the Chinese military is not very high. The military parade is a rare opportunity to directly observe Chinese weapons and equipment at close range. ??Whether you regard China as an imaginary enemy, or you want to buy some equipment from China, you can''t miss it. Compared with the model they displayed during the last military parade, these tanks seem to be enlarged? In the front row of the viewing area for foreign envoys, a brigadier general wearing a U.S. Air Force uniform lowered his voice and said to his companion who was holding a camera to focus. ??Ralph J. Jodich II, also known as Zhou Ruifu in China, was an American military attache stationed in China. Since he is an F15E pilot, his understanding of tanks is basically limited to distinguishing between ourselves and the enemy from an overhead perspective. ?Hence, in his opinion, the difference between the models of these semicircular turrets is not very big. The colonel next to him is the technical counselor of the Military Attach, and his Chinese name is Bai Lide. At the beginning of the year, I was still preparing for the Allied Forces Operation in Europe. I was transferred from Europe to China just two months ago. Last timeI thought you were talking about what they called the Type 79 tank. As an army officer, Bai Lidui''s major is the study of armored combat. In addition, he had read some materials before coming here, so he naturally knew what Zhou Ruifu was talking about: "Although they look a bit similar, they are only the first-generation tanks modified with our and British technology, and this... they should be called the Type 88, which is already a more advanced model among the second-generation tanks." After explaining, perhaps because he was worried that his leader still had no idea, he added another sentence: Probably similar to our M60, with firepower, mobility, and protection. ?Zhou Ruifu nodded, obviously understanding this time A level of technology roughly equivalent to an early 1970s model. Don''t need to care too much. The tank of the second formation is the 96 basic type. For most people at the scene, this was the first time they had seen a domestic tank without a round head. Even if you dont understand weapons and equipment, just from the appearance, the angular turret looks more like those advanced models on TV. The atmosphere at the scene was even more enthusiastic than before. ?Zhou Ruifu had no reaction. In his opinion, since the Chinese would put a model equivalent to the M60 on the military parade, it means that they probably don''t have any better models. Is this the actual situation... Its really about the same. The performance of the basic model 96 is really not much better than that of 88A/B. In most of the information available at this time, this model actually retains the name of the original 88C. Obviously, this can only be regarded as an in-depth overhaul of the second-generation tank. ?This time, even Bradbury only took two photos. For a knowledgeable person like him, he could tell at a glance that the tanks of the first two formations used similar chassis. So just taking some turret details is enough. Then, Bai Lid focused the camera on the third-party team that had not yet arrived. ??One of the important tasks of the Technical Counselor of the Military Attach is to track the development of military equipment in the host country. This is even public. The latter model of tank can be said to be the only ground equipment he is interested in today. ??Looking at Liddell, who was continuously pressing the shutter and not sparing the film, Zhou Ruifu also stuck his head out and looked over. Those tanks, they seem...different? In fact, if it is the earliest prototype car plan, then laymen may not be able to immediately tell the difference between it and the previous 96. But what is now on the military parade has gone through a round of major changes. Especially the chassis has undergone earth-shaking changes. Although the power package is still the 1200-horsepower version, the overall design has begun to move closer to the later 99A. It is a huge leap that can be seen by the blind. ?However, the turret retains the oldest version without the wedge-shaped armor. When combined together, they feel a bit light-headed and heavy-footed. We have been tracking this model since the early 1990s. ???Bride did not put down the camera, but pressed the shutter and said: But the Chinese are very strict about keeping it secret. We have obtained some pictures and technical information, but many of them are contradictory. At first glance, it is a smoke bomb thrown by them. Two years ago, those losers in the Army Intelligence Department promised that they had obtained the technical solution for Chinas latest tank, but compared with the actual object today... it is completely different. The tone was very disdainful. Zhou Ruifu next to him, as an Air Force Brigadier General, naturally couldnt follow suit, but he couldnt help but curl his lips. Information errors kill people. He thought for no reason about the B2 bomber that was shot down a few months ago. To this day, no one knows the whole process of its downing. No one knows how the other side obtains stable detection of stealth aircraft. In fact, the Army Intelligence Department was completely wronged this time. ??The appearance they guessed from a few blurry photos is actually very accurate. But I couldn''t stand it. In the past two years, the 9910 Project has changed to an almost earth-shaking new plan... Not far away from the two of them, their Russian counterparts were doing almost the same thing. There seems to be no trace of T72 or T80 at all ?Andrei Lipilin touched his chin and said to himself. He knew that China had obtained a T80 and more than one T72 through some channels and conducted detailed tests. Therefore, he had always speculated that China''s third-generation tanks, even if they were not imitations, should be inextricably linked to these two models. contact. But what we saw today was something completely different. The turret still looks a bit like the T72A...especially the size of the seat ring is exactly the same by visual inspection. Considering that it is also a three-person crew, I estimate that the loader should follow our design." ??A lieutenant colonel next to him held a telescope in his hand. After hearing Lipilings words, he said: However, the turret and the chassis look completely incoordinated. It should be just a temporary fill-in. It will be replaced or additional armor added when it is mass-produced. I just dont know what the inside of the tank looks like. I wonder if I can find a chance to take a look... On the Tiananmen Gate Tower, General Zhang leaned out slightly and looked at the neatly arranged phalanx. He couldn''t help but think of the scene when he served as the commander of the 127th Division. ?Twenty years ago, his troops also lined up for review in this way and then went directly to the battlefield in southern Xinjiang. The difference is that parked behind these troops at that time were only about thirty light tanks, a hundred old-fashioned artillery pieces, and trucks that could only undertake transportation tasks. ?He won that battle. He also made great military exploits. But the process is extremely difficult. In the absence of advanced technical equipment, the only things the army can rely on are experience and will. But these two items can only be produced by tempering them in blood and fire. The process of hardening is inevitably accompanied by sacrifice. A lot of sacrifice. ?At a time when the country most needs a large number of young people to invest in development and construction, batch after batch of brave, loyal and strong vanguards have fallen on the battlefield. Later, he rose through the ranks, from division commander to corps commander, to military region chief, and to his current position. But the scenes of commanding operations on the front line in those years have always lingered in my mind and cannot be forgotten. He also thought more than once that if he could have equipment and resources equivalent to those of the US military in the 1960s, without even using more advanced equipment, he didn''t know how many young comrades'' lives he could save. And today Main battle tanks, self-propelled artillery, tactical missiles ??Things he had expected back then, and even things he didn''t dare to expect back then, are all lined up here to be inspected by the motherland and people. As one of the most senior commanders of this army, General Zhang inevitably felt a sense of excitement about getting what he wanted. However. ?This feeling only lasted for a moment, and he suppressed it vigilantly. Its not time to be proud yet Lao Zhang stretched out his hand to hold his military cap, and secretly warned himself in his heart. More than three years ago, he was also the one who personally directed the deterrent tri-service joint exercise. Just the final result Its hard to say that its satisfactory Laymen watch the excitement, while experts watch the door. ?Although the scene of the exercise was unprecedented, the organization of the exercise was also considered smooth. However, in the second half of the 1990s, the participating troops still used domestic first- and second-generation equipment as the main force, and the exercise format was still the traditional one. The narration of thousands of troops crossing the strait has a good effect from a propaganda point of view, but from a military point of view, the beach landing method, which still relies mainly on landing ships and assault boats, is undoubtedly unable to meet the combat needs of the new era. In fact, even this traditional form of combat is subject to the dilemma of insufficient resources - ??During the Normandy landings in 1945, the Allies still had 13 battleships to provide land fire support. However, three years ago, the People''s Liberation Army even had to move army artillery onto landing ships due to insufficient firepower... ??The moment of satisfaction and elation just now was suddenly replaced by a touch of invisible pressure. Although the country has gradually begun to increase investment in national defense construction after 1996, there is still great pressure to speed up military construction without affecting economic development. Not only external, but also internal. There is still a long way to go Old General Zhangs eyes changed slightly. ?However, after all, there are only a few people who can think of General Zhang. Most people at the military parade still have a simple mentality These tanks and artillery today are much better looking than those seen on TV before... Chang Haonans perspective is obviously the most special among all. As a reborn person, he is more interested in the difference between this military parade and the previous life. The third tank team is the first obvious change. 18 tanks, all Type 99 prototypes. ?Although it has not yet been finalized and put into service, at least there is no need to use Type 96 to recharge later. He turned his head and glanced at Zhu Yusheng next to him. However, he found that the latter was also looking at him at this time. The old man and the young man met their eyes, and then nodded to each other at the same time. ?Chang Haonan could see that Zhu Yusheng''s thin body was trembling slightly. Obviously due to excitement. The model designed by oneself shall be reviewed by the motherland and the people. For any weapons designer, it is a supreme honor. ?Thinking of this, he subconsciously raised his head and looked at the sky to the west. Belongs to his home court, it hasnt started yet (End of this chapter) Chapter 768 The Air Force is the big deal (4K) Chapter 768 The Air Force is the highlight (4K) At the same time, in Yangcheng, in a conference room of Yixian University Press. Several young people were staring at the TV screen eagerly. On the conference table in front of them, there were a lot of beers and snacks. Is this... the equipment formation the highlight from the moment it comes up? ??A young man wearing a half-sleeved shirt was holding a beer can, but the movement of his hand was still in mid-air. ?Those who can gather at their units to watch the military parade on their rest days are obviously die-hard military fans. But they didnt recognize the model of tank in front of them. So, I had no choice but to turn my attention to Xi Boyang, who has been contributing articles to major magazines since college. But this time, even a trace of hesitation flashed in the latter''s eyes: It seems...its the Type 98 that has been rumored about before? Naval equipment Whats more, Chinas military industry is closely related to them. ?The person who spoke first spoke indignantly: Theres not much new stuff here? ?Zhou Ruifu laughed slightly contemptuously. For Zhou Ruifu, who spent most of his career in the Cold War, it is difficult not to think of the Soviets when talking about tanks. ??If someone hadn''t been pulling him beside him, he would have almost gotten up and rushed to the TV screen. It is naturally impossible for warships to drive onto the ground, so the navy can only participate in the parade in the form of "trucks pulling missiles." What Boyang said is really right. ??Bride shook his head: But no matter what, at least from the appearance, there are not many traces of imitation. Including the Type 99 tank. Since the prototype was first observed in 1998, it was misreported as the Type 98 for a long time. Should the video recorder be turned on? I think, judging from the ground equipment displayed by the Chinese army today, their most cutting-edge weapons are probably the ones that started research and development about ten years ago, and they are also familiar to us. What''s more, in the eyes of the two American officers, these things in front of them are not considered advanced. ?Following the three tank formations, the Type 86 infantry fighting vehicle, the Type 89 armored transport vehicle, the Type 92 infantry fighting vehicle, the Hongqi 7 anti-aircraft missile... The atmosphere in the conference room has calmed down a lot: Except for tanks, they are all old equipment...most of them still start with 8..." Look, there should be their naval equipment behind them. ?In Zhou Ruifus view, almost ten years have passed and its time for the Chinese to understand the technical research back then. From what Ive seen so far, the only exception is the new tank you just mentioned. Maybe it contains some Russian technology? ?In this era, because the People''s Liberation Army is still relatively open to the public, many things, including the names of equipment, are passed down based on rumors. China introduced a series of Western technologies in the early to mid-1980s. However, due to the breakdown of the relationship between the two parties in the late 1980s, a considerable number of models did not have time to be finalized and were forced to switch from technology import to imitation. "The main guns of the tanks at the front are L7 imported from the UK, and the smokers are very obvious. The anti-aircraft guns just past are obviously Swiss Oerlikon GDF-003, and the short-range anti-aircraft missiles should be French. The Sidewinder is just a Chinese version mounted on a trailer chassis. The original French version uses electricity. It is said that it cannot even drive 100 kilometers on a single charge..." Although Bai Lide next to it was not very obvious, the idea was obviously almost the same. What they have to worry about is never whether they can defeat a certain opponent, but whether they can defeat all other countries in the world. ??Bride pointed to a few rows of trucks approaching in the distance. I cant say, unless you can see the internal style, everything can only be a guess. As a technical counselor stationed in Europe for a long time in the past, Bradbury is almost familiar with these equipments. I talked to a friend from Beijing who I met online yesterday. He said that during the previous rehearsals, the vehicle formations would pass by their house and they didnt find much new stuff. Xi Boyang shook his head, and then asked: For the vast majority of the guests invited to watch the ceremony, and even the people across the country who are watching the live broadcast of the military parade on TV, these things have rarely been seen on TV in the past, so they are naturally full of freshness. Soon, his prediction was verified After a short pause, he continued: At the military parade, Zhou Ruifu made a similar judgment after seeing almost half of it. ?However, Xi Boyang behaved much more steadily: "The first tank formation is 88B, the second is 88C, and when the third formation sees new tanks, I estimate that the situation of the entire ground equipment is similar. Even we feel that there are not too many new tanks. ?In military confrontations, being familiar with your opponents equipment means you can gain a huge advantage. He is not just bragging. When it comes to the navy, even at the peak of the Cold War in the early 1980s, the U.S. Navy had never been afraid of anyone. But for those who have paid attention to the military for a long time, it seems a bit ordinary. Another older man nodded: Of course its open, Im also going to make a copy and keep it home. Although they should be able to produce it themselves, they are still the models we are familiar with. As for the remaining models, I agree with you. He said to Liddy, who was changing the film in the camera next to him. Butit doesnt seem like it ?However, their smiles did not last long ?After the Hongqi-61 and Haihongqi-7 ship-to-air missiles, as well as the YJ-8A and YJ-6 anti-ship missiles, the Air Forces air defense force phalanx came next. The first two rows of the square array are 8 Red Flag 2A surface-to-air missiles. ?This is nothing. The ultimate improved version of the S75, from the perspective of the late 1990s, basically has no other advantages except that the warhead is large enough and the power section is long enough. But behind them is an even older weapon. Eight Type 59 100mm anti-aircraft guns. ?) When Zhou Ruifu saw this thing, his expression froze instantly. ?After the Allied operation ended in chaos, the U.S. military quickly began to investigate what happened in the dozen or so hours from the night of April 17 to the early morning of April 18. After all, there were witnesses nearby when the Spirit of Kansas was shot down. In fact, there is no need to investigate at all. ??The Confederate Army kept complete firing records. After the war is over, it is natural to promote the war heroes. So just buy a few newspapers and youll find the result ?Several -19 anti-aircraft guns fired a round of covering barrage on the only path B2 must pass. ?This is also consistent with what the EA6B crew members witnessed. The Type 59 anti-aircraft gun in front of us is a Chinese imitation of this model. Look almost exactly the same. Although everyone knows that it is extremely unlikely for a modern fighter plane to be shot down by a large-caliber anti-aircraft gun, the other party also paid a considerable price to set up this ambush. ??But no matter what, it is an irrefutable fact that two of the most advanced stealth aircraft were shot down by two old weapons, S125 and -19. The wreckage is all in other peoples hands. It affects morale very much. It is no exaggeration to say that the entire US Air Force is almost suffering from PTSD over this thing. ??Now that China has put similar models out for military parades, it is obviously based on the battle examples in Allied operations. It is obvious that the U.S. military is in decline, which is something that people all over the world like to see. ?Those propaganda reports are already all over the sky now. ?Especially in China, several news programs were dedicated to introducing this incident. So, when these anti-aircraft guns passed in front of us, there was a burst of applause from the surroundings. Even military attaches from several countries turned their heads and looked meaningfully at the two Americans while applauding. ?Zhou Ruifus face turned red and white, and his fists felt hard. ?Qi shaking cold.jpg Comrade Liangxin. Old General Zhang turned his head and looked at Li Liangxin who was standing in the second row. A smile appeared on his face that had been serious before: Your arrangement is really good. As he spoke, he pointed to the eight anti-aircraft guns in front of him that had already moved away one after another: It seems that the response from domestic and foreign audiences is very enthusiastic. As the main leader of the army, Mr. Zhang certainly knows the sequence of troops to be mobilized for the military parade. In fact, when the reference units were first selected in March this year, the formation in front of us was still a "medium- and long-range air defense missile formation." But the Balkan crisis occurred in April, and the combination of passive anti-stealth radar and large-caliber anti-aircraft guns became famous in one battle. The existence of the former cannot be declassified for the time being. After all, once it is leaked, it is likely to be associated with China and the downing of the B2. Naturally, it is impossible to show off in a military parade. But the anti-aircraft guns are no problem. After 1991, the Chinese army, which realized that old-fashioned anti-aircraft missiles were unreliable, had already pulled out the Type 59 anti-aircraft guns and formed several mixed air defense brigades. It is reasonable to refer to anti-aircraft guns and missiles together now, right? ?Besides, Hongqi 2A is not an advanced piece of equipment in the first place. It is not shameful to be followed by several equally unadvanced anti-aircraft guns. ??It can also scare, or at least disgust, the U.S. military. Now it seems that the effect is pretty good. By the way, Liangxin. Mr. Zhang leaned over a little: That young comrade named Chang Haonan should also be here today? Definitely there. Another leader next to him heard the conversation between the two and turned around to intervene. ?During the process of sorting out, the big leaders themselves are in the spotlight and it is definitely difficult to look around, but for those of them standing nearby, it is not a big problem for them to sneak away for a while. Two months ago, I accompanied the chief to Jiangcheng to inspect a National Day gift project. Comrade Chang Haonan was the person in charge of that project. After the inspection, he specifically asked us for several invitation letters, saying that they were for other comrades in the group. I also specifically asked if it would be better for him to reserve one for himself, but he said that he already had one ?In fact, even Chang Haonan did not expect that Li Liangxin would actually bring the Type 59 anti-aircraft gun to the military parade. ?When he saw this formation of ground guides and anti-aircraft artillery, he almost couldn''t hold back his laughter. Fortunately, only anti-stealth radars were displayed but anti-stealth radars were only displayed, which also reflects the Chinese side''s habit of keeping one guard up in everything. There is no need to worry about people linking China with the shooting down of the B2. ??It is appropriate for the Russians to shoulder this responsibility for the time being. ?In such a warm and even joyful atmosphere, no one even paid attention to the S300PMU following behind. ?Of course, this is largely because the commentator did not imply that China has introduced the S300 production line as he did in the previous life, and only introduced it as an ordinary high-performance equipment. ?Concerning this matter, when he went to Wuqing Airport two days ago, Zheng Liangqun specifically consulted Chang Haonan and Ding Gaoheng for their opinions. The latter two agreed that there is no need to engage in such a meaningless bluff, considering that the equipment level of the aviation force has made a qualitative leap, and even the domestically produced third-generation fighter jets will soon be put into service. ??If such a wave comes out of nowhere, it will appear that we are not confident enough. So on the eve of the military parade, another deletion was made before the final version was finalized. The ones who reacted the most to this change were naturally several Russian military attachs. As for the original version of the commentary, China has naturally communicated with the Russian side. Otherwise, if you make a lot of hints, but others are confused and say that I have never sold it, wouldnt it be a joke? But today, Andrei Lipilin, who was listening to the commentary complacently, found that it seemed a little inconsistent with what he said before. He quickly checked with the translator next to him. There is indeed no mention of content related to self-developed or domestic production. This made Lipilin feel a little flustered. ?The reason why Russia agreed to cooperate in the first place was naturally not out of the spirit of internationalism, but for business reasons ? To describe the imported S300 as domestically produced clearly shows that the Chinese are very satisfied with the performance of this model and regard it as a weapon to deter potential opponents. but now Is it possible that they have developed a new type of anti-aircraft missile? ?Lipirin was mired in self-doubt. Although I have not heard that the Chinese have made any particularly huge progress in missile technology in the past two years, considering that they seem to have been hiding and then suddenly developing in the fields of aviation and machinery manufacturing, it does not seem impossible... After much thought, he decided to report the situation to the country and ask Antai to speed up the delivery of the 4 camps of S300PMU1 ordered by Huaxia last year, and at the same time speed up the testing and development process of the latest models S300PM2 and PM3... At this point, the foreign representatives on the scene already had their own thoughts. Following the ground equipment formation, the entry of the air formation pushed this situation to its peak. Since todays weather conditions are far better than those on October 1st in the previous life, with extremely high visibility and almost no wind, the air formation adopted the lowest flying altitude among the three preset plans. ?Especially the Bayi Aerobatic Team who took the lead. ?A Hongyou-6 carrying eight JJ-9Ys passed over everyone''s heads at a height low enough to give people a slight sense of oppression. ?This time, Zhou Ruifu changed his previous careless attitude and took a series of photos with his camera pointed at the sky. He really served... At the Singapore Air Show in 1997, the export version of the JJ-9 FTC2000 had conducted ground and flight demonstrations. But it is one thing to build an aircraft for verification, and it is another thing to put the new technology into mass production and equip the troops. What''s more, units like the aerobatics team are involved. It shows that the Chinese people have strong confidence in its aerodynamics and control stability. Furthermore, this model has only had relevant information since mid-1997, and it has already completed the testing process in just over two years. He reasonably speculated that the Chinese people may have already begun to study the related technologies of the DSI air inlet, but they have been doing it secretly without anyone noticing... This is a bit scary. ?Zhou Ruifu frowned. ??The two large machine formations at the back are nothing to look at. Even on the Chinese side, the H-6 is not considered a new piece of equipment. Although the J-8D has only been in service for a few years, it is essentially not much different from the J-8B. It was already seen as a model of peace. What he was looking forward to was the model that appeared at the first Xiangzhou Air Show in 1996. ? Based on the comprehensive inference of the internal wall climbing deployed in Shengjing and satellite photos, China should have equipped 3-4 regiments of J-8C. The navy and air force have conducted several trials before, but the Chinese are very vigilant. Even if they dispatch the J-8C, they will rarely make long-term visual contact. Hence, it is unclear whether there is any difference between the mass-produced version and the original version. In other words, it is whether to reduce allocation. If not, then the threat of this model should still be considerable. ?Although the aircraft body is still a second-generation aircraft, judging from the movements of the original flight show, some of its performance are comparable to those of light third-generation aircraft such as the Mirage 2000. But the more I look forward to coming, the less likely I am to come. The fourth and fifth formations are both fighter-bombers. ?Zhou Ruifu did not have a deep understanding of the JH-7, but he knew that the F4EJ of the Air Self-Defense Force had fought against this model before, and had not gained any benefits within visual range. "etc" It was only then that he suddenly noticed that these Chinese aircraft were all in combat mode with ammunition hanging on them: "interesting" Compared to the aircraft itself, Zhou Ruifu is more interested in changes in these details. ?This seems to indicate that the training intensity and ground maintenance level of the Chinese Air Force are gradually improving. Don''t underestimate this small action of hanging a bomb. ? Pylons and guide frames are one of the most prone parts of an aircraft to malfunction, and each aircraft has anywhere from a few to a dozen, which requires a huge amount of maintenance work. ??It would be great fun if an auxiliary fuel tank or a missile or something fell down. Since they dare to do this, it shows that they are very confident in the maintenance level of the aircraft. ??When 3 groups of 12 J-8Cs appeared in the viewfinder, Zhou Ruifu''s first reaction besides pressing the shutter was to glance at the British military attache not far away. He knew that about two years ago, a Royal Navy fleet was penetrated into the air defense circle by several Chinese aircraft at low altitude. One of the aircraft imitated the Afghan A4 during the Falklands War and threw two auxiliary fuel tanks at the Royal Ark. It seems to be the J-8C that did it. ??This incident was later handled in a low-key manner, including the photos taken by reporters on a civilian ship present, which were also destroyed. The Royal Navy was even more secretive about the specific situation. But its probably impossible to hide it from an insider. ?Sure enough, the British military attache did not raise his head, but looked at the crowd opposite with a complicated expression. Zhou Ruifu''s mood suddenly became less bad. He took the camera off his neck and prepared to take out the film. According to previous estimates, after the J-8C appears on the scene, there should be nothing important. The most important one is the Su-27SK, but this model is no stranger to the US military. ??They have even obtained an original Su-27S, so there is no need to try to tell anything from the military parade. At the same time, the female commentators voice also sounded again: What is flying over now is a high-altitude, high-speed fighter echelon composed of two regiments of a certain aviation division. This is the main aircraft type of the Peoples Air Force in future anti-aggression operations. It is composed of three groups with a total of 12 aircraft..." Until this moment, General Zhangs calm expression finally changed again. ??If just now he felt that there was still a long way to go, then at this time, at least the dawn is beginning to appear. The main aircraft type in future anti-aggression operations, this was what he personally added when deciding on the commentary. In fact, even from the current perspective, the two domestically produced third-generation aircraft are progressing smoothly and will probably begin to be equipped with troops within a few years. The positioning of the J-8C has gradually changed from the core main force in the past few years to a model responsible for transition, as well as specific interception and reconnaissance missions. The planned equipment volume has also been reduced by about half from the initial 400-600 aircraft. However, he still wrote this sentence in It is self-evident whose aggression we should oppose and in what context we should oppose it. When that exercise was organized, there were even many troops flying the first-generation J-6 fighter jets. The one who entered the airspace surrounding the exercise to provoke was the F14. Lao General Zhang still remembers the almost farewell look in an aviation regiment commander''s eyes when he assured him before taking off that "the invading enemy will be intercepted outside our airspace." ?For this reason, after the J-8C completed production and finalization, he made special arrangements to re-equip that unit. It is a pity that because they are located on the southeastern front line, they cannot be out of combat readiness for a long time and lost the opportunity to come to this military parade. If I had another chance Lao Zhangs eyes moved slightly, and he began to simulate in his brain, if the exercise was carried out now instead of three years ago, would the situation be different... There are many people who are also thinking about this matter. The officers on the viewing platform, the military fans in front of the TV, the pilots in the airplane cockpit... Everyone is holding their breath. This anger has been holding in for several years. and. Coincidentally, it is since 1996 that China seems to be on a fast track. Its not that development was not fast enough before. But in recent years, it has been a bit unusually fast. As long as you pay a little attention to relevant news, it seems that you can often hear some good news that you could never even think of in the past. So much so that in the past few years When I saw the J-8C for the first time at the Xiangzhou Air Show. When the bat hunting operation is successful. At the completion of the embankment operation. When learning that B2 was shot down. At a time when NATOs Operation Allied Force ended in failure ?Although most people only know one or a few of them. But everyone has had the thought Maybe its time to breathe a sigh of relief? ?However, when the short-term joy has passed, the shadow of the powerful enemy on the other side of the ocean still lingers in the heart, telling everyone- No, its not the time yet. For Xi Boyang, who had been waiting for a long time, his expectations for this military parade were already satisfied when he saw these 12 aircraft. ?As a military fan, even a senior military fan, the information he can obtain is pitiful compared to an insider. Therefore, what he has been paying attention to is how many J-8Cs have been in service Just as military fans more than twenty years later are keen to estimate the number of J-20s in service. After hearing the commentators announcement, he quickly opened the notebook next to him: A certain aviation division...that should be the 1st Division... Two regiments, one more than I previously estimated. If calculated this way, the navy and air force combined should have at least 6 fighter regiments that have been re-equipped..." "Then...isn''t that more than 140?" The person next to him shook his hand and dropped the beer can he had just picked up on the table. You cant say that either. Xi Bo didnt even raise his head: The start of the equipment change does not mean that the equipment change is completed, but in any case, it has only taken three years, which shows that the production speed of the J-8C is very fast..." Just now it was said on TV that it will be the main aircraft model for our countrys future anti-aggression operations. Doesnt that mean that the J-10 and J-11 are not going well? The other persons face looked unhappy. Obviously Mr. Zhang didnt expect that the sentence he added could still make people think like this. The J-10 has only made its first flight two years ago, and the progress cannot be that fast. The Su-27 was purchased, and the domestically produced models also have imported parts. Obviously, it is impossible to build too many..." Xi Boyang vowed: So, there is really no problem in saying that it will be the main model of our army in the next six or seven years. "Besides, even though the J-8C is a second-generation aircraft, military reports have shown footage of it launching the Thunderbolt 11 before. As long as the fight is not within visual range, homeland defense operations do not require much range and rely on high-altitude and high-speed capabilities. , it may not be possible to compete with third-generation machines..." After explaining this, he raised his head and looked at the TV again. At this time, the next air formation has appeared on the screen. . What is flying over Tiananmen Square is the Peoples Air Forces new long-range fighter echelon. This aircraft is the representative work of the worlds third-generation long-range heavy fighter ?Although the commentator did not mention the specific model, everyone sitting here can naturally recognize it. They are 12 Su-27SKs. ?Although Xi Boyang said that just now, when he saw Su 27 appear, the expectation and envy in his eyes could not be deceived: Sigh... I estimate that in another 10 years, during the next military parade, we will be able to see domestically produced third-generation aircraft... Obviously, this estimate is still a bit disappointing to a few people nearby: Ten years... is too long...how long will we be suppressed by the Americans... It wont take long to say that it wont be long... ?Xi Boyang took a sip of beer and began to show his optimism: We are all in our twenties, and the oldest brother, Yang, is only in his early thirties. Next, it is our time to shine... I guess we will definitely see that day before we retire. Dont you think its cool to experience this process from weak to strong with the country? ??He wanted to say something more, but the pleasant voice of the female commentator sounded again, drawing other people''s attention back to the TV: The next thing to be inspected is the domestic third-generation fighter formation. It is composed of two different types of fighters independently developed and produced by my country. It is the core and typical example of the new combat power of the Peoples Air Force. Among them, the heavy fighter..." This paragraph of commentary is particularly long. ?Of course, this is also due to the excellent low-speed performance of the two aircrafts, which gave the commentator a relatively longer time to read the manuscript. But Xi Boyang couldn''t listen to the rest of it. Because all his attention has been focused on vision. The whole world seemed to be quiet to him Five planes appear in the shot in a wedge formation. The front one and the two outermost ones are still the Su-27s he is familiar with. ?Of course, since it is a domestic model, it should be called J-11. ?This is not surprising. but! Two frames sandwiched in the middle Ventral air intake, canard layout, wing body fusion... J-10, its J-10! ? Xi Boyang jumped up excitedly and even knocked his chair over to the ground. Although he made a judgment less than a minute ago, saying that the progress of the J-10 "cannot be that fast." ??But at this moment, he didn''t even care about the pain in his face. He rushed in front of the TV at lightning speed, trying to see as many details as possible. ?Its a pity that the resolution of the TV broadcast signal at this time is really average. Even if you get up close, you can only see an outline. "ah-" He slapped his forehead in annoyance: I really want to go there At the military parade where Xi Boyang couldn''t get it, Zhou Ruifu felt that his breathing had stopped. Even before the first flight of this model, the intelligence department had already speculated on the rough design plan. During the test flight, many insiders were sent to squat in the grass around Factory 132 to take secret photos. However, it is still an extremely rare opportunity to observe China''s aircraft that have not yet officially entered service at a (relatively) close distance during the military parade. ?Zhou Ruifu subconsciously raised the camera and adjusted the lens focus to the maximum. Then he realized that he had just unloaded the film. ??Zhou Ruifu almost wanted to slap himself, but just regretting it was obviously of no use, so he had no choice but to shout loudly at Bai Lidui: Quick, take a photo, take a photo! ?At the same time, Chang Haonan also raised his head and watched the five planes gradually approaching and then moving away. He finally felt what Zhu Yusheng felt half an hour ago. The No. 01 aircraft of the J-11AS, the two J-11A turbofan demonstrator aircraft and the No. 01 and 03 prototypes of the original J-10 plan. ?Each one was so familiar to him that he couldnt be more familiar with it. ?Especially the two outermost aircraft are equipped with four new turbofan 10 engines that he has devoted a lot of effort to. ?Perhaps 99% of the people present cant tell the difference. ?Even most people will think that it is the same Su-27SK as the previous formation. But under the similar appearance, there is a completely different interior hidden... For Chang Haonan, it was like sending his children to the military parade. By turning his head, he caught sight of the Tiananmen Gate Tower out of the corner of his eye. It seems that the time the chief spent waving in the air was particularly long this time... (End of this chapter) Chapter 769 Different tail nozzle Chapter 769 A different tail nozzle In fact, the commentator just described this air formation as a "domestic new generation fighter jet." Perhaps most of those who can be invited to watch the ceremony do not understand the air force, let alone aviation. But you must be able to understand the situation. Be clearer about the significance of national defense modernization. ??Despite this timeline, the Balkan crisis in the first half of the year was properly resolved in a dramatic way and did not cause much turmoil in China. Even so, there are not just one or two things that people will remember in the entire 1990s. Especially during the period at the beginning of 1996, although the public reports in the news were about the exercises being conducted in the southeast, and they were not very straightforward, everyone basically knew what happened and why the exercises were conducted. . ?Its only been less than four years, so its not easy to forget. The scale of this military parade was specially increased. To a certain extent, it was actually a response to what happened that year. So much so that after being promoted, I couldnt write a single article for half a month. Hey, okay, okay ?? Now it is time to catch up with important events such as the 50th anniversary of the National Day, otherwise the two "senior" figures would rarely appear in person. In the media area further forward than the viewing platform, a young reporter with a staff nameplate was holding a camera and wanted to put his entire face into the viewfinder. Compared to the exercise that year, it was more restrained. ??Qin Chengbang, known as Xiao Qin, was reluctant to change the camera Xiao Qin, Xiao Qin? For those who know the industry but dont have much access to inside information (referred to as stinking military fans), todays wave can already be called a gluttonous feast. ??As a result, this section really made him top-notch, and he even published an additional bi-monthly magazine in the form of a picture album. Although the price is not low, the circulation has still hit new highs repeatedly. Behind him, a slightly older middle-aged reporter looked at the next three-machine formation flying over from a distance, and took a picture of his companion who still insisted on pointing the camera above his head: but more powerful. However, this wave of promotions is hard for Liu Jianshe to explain. The next formation is coming, stop taking pictures of the ones in front! Fortunately, Liu Jianshe was quite self-aware. After realizing that something was wrong, he quickly transferred Qin Chengbang to a formal post and made him his subordinate. Those are J-10s, or two. There is a sense of dj vu as an exhibition of the results of four years of efforts in military construction. Even if you cant understand it, you can still feel a sense of confidence from it combined with the majestic military music and the sonorous and powerful voice of the narrator. ??If Chang Haonan was nearby at this time, he might still remember that these two people were the media duo he met at the first Xiangzhou Air Show. Three years later, Qin Chengbang, who was just an intern at the time, has long since become a full-time employee. Liu Jianshe, the senior who led him, also took off because of his ability to seize the opportunity. He was promoted by the editor-in-chief to specialize in international situations and military affairs. He became one of several deputy editors in the newspaper. ??Even Qin Chengbang was promoted to the position of deputy editor at the beginning of the year and gradually turned to behind-the-scenes work. ?His "accurate prediction" of the emergence of the J-8C back then was a complete failure of a blind cat and a dead mouse. In fact, he was a complete layman in this regard. ? Qin Chengbang, who usually surfs the Internet intensively, has been paying attention to this model since its first flight the year before last. A third-generation fighter jet completely independently designed and developed by China. It can be said that every move affects the hearts of countless people. But in the past, if you wanted to take photos, you had to take great risks and go to the 132 factory to work as a gangster. And its also a matter of luck. After all, test flights are not conducted every day. ? Qin Chengbang has always wanted to publish a column about the J-10, and he has even written about the content, comprehensively analyzing and estimating the design features and performance levels of this model. The final conclusion is that it is fully comparable to the F16, with only slight shortcomings in multi-purpose performance. It is speculated that it may enter military service before 2005 and eventually become one of the main models of the Chinese Air Force. It is conceivable that this article will be a big seller. Just because I was not sure whether the policy would allow it and because I didnt have very good photos, I was never able to publish it. ?However, this time, the J-10 was directly and openly displayed in front of people all over the world, and there were obviously no policy concerns. As for the photos, he had already taken quite a few of them just now. ?Its a pity that the formation of five aircraft is too dense, and it is really impossible to shoot a single aircraft alone. ??? However, just at the moment Qin Chengbang''s eyes were about to leave the viewfinder. Five fighter jets have their tails exposed just in front of the camera. Wait a minute, wait a minute Brother Liutheres something wrong with the two planes ahead Qin Chengbang suddenly stopped raising his head. ??The air formation is currently flying at low altitude and low speed, and the engine thrust is very low, so there is no dazzling tail flame to interfere with the line of sight. Hence, he could clearly see under the magnification of a high-power lens that the engines of the last two J-11s were completely different from the first three aircraft. ?In addition to the shiny silver color, the bigger difference is that there is no AL31Fs iconic convergence adjustment tab. appears to be fixed. ?In addition, the color displayed inside the spout is also slightly different. ?After discovering this, Qin Chengbang''s whole body trembled with excitement. Originally, he had no interest in the three J-11s. The introduction of the Project 11 production line and the domestic production of Su-27 is not a secret among Qin Chengbangs friends and readers. Although heavy fighter aircraft have stronger overall performance and improvement potential, they are still producing other people''s products anyway. From a news perspective, it is certainly not as topical as the J-10. But now, the situation seems to be different... The J-11, or at least the latter two J-11s, does not seem to be a simple copy of the Su-27SK. Is it not the Su-27SK that is being produced locally, but a new model? Qin Chengbang''s brain was running rapidly. But soon, he rejected his idea. ?? Russia did make its first flight of an improved aircraft called the Su-27SM at the beginning of the year, using a brand-new airframe and avionics equipment. ? He ??even wrote a special article in the April issue of the magazine for analysis, believing that it may be a signal that the Su-27 will shift from pure air superiority to multi-purpose. ??But the engine of the Su-27SM is still the AL31F series, and there is no significant change in appearance compared to the old model. In fact, Qin Chengbang did not remember any Russian-made engine that used a similar tail nozzle. Instead, it is the M53 engine on the Mirage 2000, which has similar characteristics. But the size obviously doesnt match. ?Two engines with a thrust of less than 9 tons obviously cannot push an aircraft of the size of the J-11. so After eliminating all the wrong answers, there is only one truth left These two aircraft are likely to be equipped with a new type of domestic engine that has never appeared in the past. Being able to fly an aircraft equipped with a domestic engine on a military parade undoubtedly shows that the performance and stability of this model have at least reached a usable level... ?While thinking about it, Qin Chengbang was so stunned at the military parade that he even forgot that there were several formations behind him that needed to be photographed. Alas...you... Seeing that Qin Chengbang didn''t listen to his words at all, Liu Jianshe looked worried: "This is the National Day military parade! What problems can there be with the plane? If there is a problem, it is not our turn to see it..." ??The only set of professional equipment was in the hands of Qin Chengbang. The latter did not dare to grab it, so he had to raise the point-and-shoot camera hanging on his wrist and take a few simple photos first. Normally, their picture album will be released in October at the end of September. This year, it was postponed for half a month just to publish a special issue for the National Day military parade. If the content is missing in the middle, it will become a laughing stock in the industry. Although the imaging effect of the point-and-shoot camera is average, it can be dealt with after zooming in. ?At this time, Qin Chengbang had also come to his senses, turned the camera again, and took two more photos of the formation behind him. It''s just that the angle is slightly different. Fortunately, this is a support aircraft formation composed of three special aircraft of the Y-8 platform. The Y-8X and Y-8J are nothing new to those who have been paying attention to air force equipment for a long time. Just take a look, Brother Liu. ??Taking advantage of the few seconds between the two formations, Qin Chengbang raised his head and rubbed his eyes that were a little sore from being open for a long time: When I go back this time, I promise to write a hit article, no less than the one you wrote before the Xiangzhou Air Show! When he said this, he had even conceived the title of the new article in his mind: Cure Heart DiseaseA New Generation of Domestic Power to Lift a New Generation of Domestic Fighters (End of this chapter) Chapter 770 Carry on the past and open up the future Chapter 770 Carrying on the past and opening up the future On the other side of the viewing platform, a little boy was holding a telescope and looking at the sky. ?However, because the interpupillary distance is too small and the tip is not stable, it is really difficult to see anything clearly. Might as well use the naked eye. Grandpa, are these the planes you flew back then? He put down the telescope and asked. ?However, this time, there was no response. After turning around, he realized that there was another man in military uniform beside his grandfather. Sir, sir, have you ever flown a plane like this before? ??The old man looked up at the formation above his head and asked the man next to him. Six training aircraft painted in gray from the aviation school appeared on the scene. Yes, the new fighter-training aircraft that was only equipped to the army last year can simulate the control characteristics of third-generation fighter jets. Because of its good flight performance, the demonstration team was the first to purchase a batch. At the same time, on the east viewing platform. This time, it was Old General Lin who answered directly: If your grandfather and I had these airplanes back then, we would probably be able to go to Hokkaido and take a look at them ?Of course, although the current Chinese Air Force is still far behind the world''s top air forces, it certainly no longer needs to use this kind of blindness. ? Mr. Lin himself was one of the nine pilots. ??Now that this matter is mentioned again, it is just a joke between two old guys. ? Mr. Lin raised his hand and pointed at Wang Min in front of him, but said nothing. But speaking of it, when I returned to my old army two years ago, I still saw the J-6 I flew over back then still parked on the tarmac... Mr. Lin was stunned at first, but he immediately realized what Wang Min meant ?If I can fly back, I will fly back. If I cant, I wont have to come back... It wasn''t until Wang Min''s grandson called him "grandpa" several times that their attention was diverted. Changed, everything has been changed. Mr. Lin didnt bring any equipment, so he had to cover the sun with his hands and look up. I am happier than Chang Yuanchao because I feel uneasy. What skydiving? ??There are only a few planes in the entire army. Are you telling me to skydive? ?Even the seats on some airplanes are broken, and student pilots can only use ropes to tie themselves to them and fix them to them. They were surrounded by retired senior cadres and at most children under ten years old, so they could have a more open conversation. When two veteran cadres got together, they naturally talked about old things from the past. While the two old men and the young one were chatting and laughing, the air formation formation gradually came to an end. These planes seem to be the same type as the planes used by the original performance team? The two of them showed a knowing smile at the same time. Obviously, it was all just an act before. Xiaonan As for skydiving As a result, the first voice broke at this time. At the Founding Ceremony, because the number of aircraft was too small, there were three formations with a total of 9 P51 aircraft. After completing the review, they circled to the end and flew again, making the 17 aircraft look like 26. Old General Lin nodded: "I''m telling you Lao Wang, it feels so comfortable. If nothing else, the plane will react with just a slight movement of the stick in your hand. It''s not like when we first got on the plane, we held the stick in both hands. Only then can we break it apart..." Wang Min shook his head: You are still in good health. You can still fly a fighter jet at the age of seventy Yes, I flew there the year before last... Zhou Li had deliberately behaved very calmly and calmly since the night before. Old General Lin replied with a smile: Have you seen the high-altitude and high-speed fighter echelon that just passed by? I changed to that model..." Tsk tsk ?Wang Min took the telescope in his little grandson''s hand and glanced at the sky. Although he is very old, as a pilot, his eyesight is almost as good as when he was young. General Lin is the first generation of Chinese pilots to fly the P51 at the founding ceremony. When he first learned to fly, he used the 99 Higher Education School of the old Northeast Aviation School. There was no flight control, and the steel wire was directly connected to the rudder surface from the cockpit, all relying on one hand. As an old comrade from the founding days of the Air Force, he naturally understands the importance of cultivating pilot talents. Hearing this answer, Wang Min nodded silently at first, and then looked at the other party half-jokingly: The models of the first formation and the last formation are the same The person called Lao Wang next to him is Wang Min, the chief of staff of General Lin when he was the aviation division commander. He once flew a J-5 and damaged an F86 fighter jet. However, he later switched careers to work in the civil aviation system due to physical reasons. ?But at this time, she couldn''t care about it anymore. She quickly cleared her throat and grabbed Chang Haonan next to her: Xiao Nan, is this the formation? Chang Haonan nodded: "Yes, that''s it. Jia Yao is on aircraft No. 6, the aircraft at the rear of the formation." Hearing this, Chang Yuanchao quickly took out a telescope from a somewhat tattered cowhide box. ?That was a trophy from when he was a scout. It was made from East Germany and was of very good quality.?????"Hurry and show me too." ?Zhou Li also stopped pretending at all. In fact, even with a telescope, it is impossible to see clearly what the pilot in the cockpit looks like from the ground. Not to mention the flight helmet and mask. ?However, Chang Yuanchao still took it with him. After all, the daughter was being inspected in a plane designed by her son, while the parents watched from the viewing platform below. ?This kind of happiness may not be felt by many people in the country. Especially, how can people not have the mentality to show off. Every time I catch a fish weighing 10 kilograms, I would like to mention it to everyone, let alone my son or daughter who have such great potential. However, due to the special nature of Chang Haonan and Chang Jiayao''s work, they can only keep a low profile and rarely have the opportunity to mention the situation of their children to others. Even if I am asked sometimes, I just say that my son is a small leader in a state-owned enterprise in the capital, and my daughter has joined the army. There is no chance to show off at all Hold up. at the same time. ?In the front cockpit of the No. 6 aircraft of the training aircraft formation, Chang Jiayao was also looking at the crowd on the viewing platform below. When we met at the airport before, Chang Haonan said that their location was at the far west of the east viewing platform. ?However, there are really too many people on the viewing platform today. ?With such a rough location, it is impossible to find exactly who it is. So, Chang Jiayao raised her camera and took a bird''s-eye view of the Tiananmen Gate Tower to take three photos of the entire east viewing platform. Whether we can find someone inside will be discussed later. Anyway, we need to keep a souvenir. Otherwise, this visit can hardly be called perfect. After the training aircraft formation, there are three consecutive groups of helicopters. ?Compared to the all-white Z-9A helicopter fleet in the previous generation, this time the variety is much richer. They are straight 9A, straight 9C and straight 9W However, including the training aircraft formation, not many people are paying attention to it. On the one hand, different models of Z-9 are very similar in appearance. Except for the French, few people know the amazing technical capabilities behind the latter two improved models. The training aircraft is similar to the model of the Bayi Aerobatic Team. Same, nothing new. ?On the other hand... Most people are still immersed in the shock brought by the domestic new generation fighter formation just now. On the front row of the viewing platform. Did you take a complete picture of the formation just now? ?Zhou Ruifu looked at the dozens of helicopters that were gradually disappearing, and asked Bai Lidong next to him. If he were asked to describe his current mood, it would be... ??I''m so stupid, really. I only knew that the Chinese were developing a third-generation fighter jet and would test it in Yanliang, but I didn''t know that there would also be something at the military parade... Although the media at the scene will certainly take a large number of photos, as a person responsible for intelligence tasks, it will appear very unprofessional if he directly uses media photos to submit a report. Fortunately, Bradbury was always very vigilant. He nodded and put away the camera: I took the photo, but the magnification was not large enough. I was worried that some details could not be seen clearly. It doesnt matter, as long as there are a few photos that can be used for domestic communication. ?Zhou Ruifu breathed a sigh of relief, shook his head and replied: "We have already done technical research on the Chinese new fighter jet. It is probably a pure air superiority model that is comparable to the late-model F16A. Although it is larger in size, it uses a delta wing design, so the bomb load is the same. The range is not very optimistic, and the air combat performance may not be weaker than the F16, but the multi-purpose potential is insufficient. As he spoke, he started to pack his things. There were mass celebrations after the military parade, but that was not what interested him. Beijing is still a bit hot in October. Now Zhou Ruifu just wants to end it quickly, go back to the air-conditioned room to write a report, and then wait until evening to attend the dinner party. However, what surprises me is the progress of their research and development of this model. Zhou Ruifu took out a pair of sunglasses from his bag and put them on: This model only flew for the first time two years ago. We dont expect it to enter mass production until 2004-2005. However, since they dare to let the prototype go on military parade, it shows that the degree of completion is already very high. I am afraid it will be equipped in two or three years. So...its a big threat to us? ??Bride asked. He obviously doesnt know as much about the Air Force as Zhou Ruifu, who is a pilot. Thats not necessarily the case The latters answer was non-committal: "The scale of the Chinese third-generation fighter jets cannot grow explosively in a short period of time. You know that in many cases, quantity itself is a kind of quality. What''s more, although they are both third-generation fighter jets, our F15C and F16C are Better performance than those earlier models Even though he said this, Zhou Ruifu''s expression was still a little serious. After a slight pause, he changed the subject again: However, in any case, this is indeed the first time since the 1950s that the generation gap has been smoothed out by the Chinese Air Force. So, the domestic development of a new generation of fighter jets must indeed be accelerated..." (End of this chapter) Chapter 766769 reset Chapter?766-769 Reset Part of the content of Chapters 766-769 has been changed, and about 7,000 words have been added. Because it is the number of words added later, there is no need to pay extra. The first few chapters I wrote could not be posted at all. Later, I directly deleted all the parts that the writer''s assistant judged to be sensitive content before posting them. But I went back and read it again today, and found that such deletions would make the entire plot very incoherent, so I went back to the original version, deleted a number of sensitive words one by one, and added back some of the content. ??But the content related to the Second Artillery has been stuck. Considering that the protagonist has not participated in the missile project yet, this part has not been added. (End of this chapter) Chapter 771 The aftermath (6K Chapter 771 The aftermath (Chapter 6K) ??In a small auditorium of the Beijing University of Aeronautics and Astronautics, a large group of students were gathering to watch the military parade. ?There is no online live broadcast these days, and there is no TV signal in the dormitory. If you want to watch the live broadcast, you can only watch it in a few specific places in the school. The age of early 20s is the stage when they are most energetic and concerned about national affairs, and the special nature of Beijing Airlines has increased the proportion of this group of people. Hence, even before the military parade started, the place was already packed with people. So that those who came after him could only sit on the ground. ?In the end, it was Tang Lintian who came forward personally and asked each dormitory building to open the activity rooms equipped with TVs, which stopped the surging crowd. ??And the content of this live broadcast of the military parade did not live up to the early morning they woke up specially - ??For students who have not yet entered the aviation industry system and have not been exposed to much confidential information, except for the J-7E with a formation in the middle, which is really lackluster, the other models are still quite surprising. ?Its just that the auditorium is a public area after all and is really not suitable for making loud noises, and no one wants to miss a word of the commentator. So, at the beginning, everyone was still able to suppress their emotions. Once you miss it, you dont know when you will see it again. The chat between the two people obviously disturbed the surrounding people. Soon, a person in front of them turned back angrily and motioned for them to be silent. But at least, he has seen a lot of photos and information. Even students from the Aeronautical and Astronautical University have seen very few Su-27s with their own eyes. ?Li Yan scratched his head. ?Hence, they were lucky enough not to miss the narrator''s voice. ?Hence, everyone couldnt wait to hold their breath and didnt want to miss any shot. After all, they dont have the conditions to record the scene and watch it slowly, nor do they have a search engine that can find the picture by typing a few words. ?Even so, he continued to answer: Su 27 is here, look! Fortunately, the teacher on the podium reacted quickly and quickly raised his hand and lowered it quickly: Quiet, quiet! Listen to what the TV says! ??Only some whispering sounds could be heard from time to time. ?But before he could take the cup away from his face, he heard a roar from the man who had just turned around to condemn them. It seems that he did say that, but I thought he was just showing off? The contents are basically the same Of course, as a junior master, he would not have the opportunity to participate directly. Besides, I remember Professor Chang said at the time that that model is still relatively backward, so we will equip it better. Li Yan looked at the double-delta-wing J-7 flying past on the TV, turned around, and whispered to Zhou Shuwan sitting next to him: "I remember Brother Nan...no...when Professor Chang went to school with us, didn''t he design an improved version of the J-7 with chin-intake in the class? Why wasn''t it equipped?" I saw a lot in the news in 1996, but the signal quality at that time was worse, and they were cut into scattered scattered pictures (in order to pieces all the number of lenses), and they must not be compared with the parade. ?His father did once serve in the Air Force, but he changed his career two years ago. An exclamation without any practical meaning. Then the conversation changed: But considering that he has really become our professor now, so when I think about it now... he may have planned it all at that time. You see so many J-8Cs that just flew over, they have obviously equipped the troops in large quantities. The time from the first exclamation to this moment is long, but only a few seconds have passed in total. ?His mentor is a well-known domestic aviation safety equipment expert. In Project 11, he participated in the technical absorption of the K36D ejection seat. ?Other than that, there are a few fixed pictures in military magazines. The original silence returned to the auditorium again, with only the rhythmic voices of the two commentators remaining. But Zhou Shuwan is an exception. So, among the crowd of spectators, only Zhou Shuwan seemed very calm. What the fuck? Then, his pupils suddenly shrank. ?Zhou Shuwan put down the cup and focused his attention on the TV screen again. Zhou Shuwan was silent for a moment: Actually...I felt the same way at the time. He didn''t yell like others. ??Even specially opened the thermos cup and took a drink of water, and mentally pointed out the strange classmates. I said, Brother Zhou. ?He was just about to reprimand him in the same way, but then, the sound of one after another rang out in the auditorium. ?At that moment, Zhou Shuwans mind was blank. ?Zhou Shuwan frowned slightly and glanced at Li Yan next to him: Your dad is in the Air Force, are you asking me about this? They were both classmates of Chang Haonan when he was an undergraduate student, but now the latter has graduated with a doctorate and became a professor, while they are still in their third year of graduate school and are preparing their master''s thesis. The next thing to be inspected is the domestic third-generation fighter jet formation But I dont know what my mood is. Calm? Absolutely not. ?Although he still looked indifferent on the surface, his drum-like heartbeat and rapid breathing betrayed his heart. surprise? Seems to be. But not quite. He has long heard about Project 10, which is developing a third-generation aircraft by itself, and also knows that the prototype flew for the first time two years ago. ?Now that I see my real body appearing in public, I am certainly happy, but it does not seem to be the main tone of my mood at this moment. If I have to describe it, it can only be... Its hard to describe in one word, and its full of mixed feelings. As a member of the generation born in the 1970s, Zhou Shuwan has always had a contradictory mentality. He knows that China''s weapons and equipment are generally more than one generation behind the world''s mainstream. ??Knowing that China''s armored forces are even worse than the monkey version of the T72 that was killed indiscriminately during Operation Desert Storm. I know that by 1996, there were still few fighter jets capable of firing medium-range bombs. ??Know that Sovremenny-class destroyers are not "aircraft carrier killers." ?These are the things that people like Huang Zhiqiang often talk about and ridicule. But, they are all true. However, he also knows that our army has always been good at fighting when the enemy is strong and we are weak, and when the enemy is numerous and we are few. We also know that from Chishui River to Sansuoli, what we are best at is making the impossible possible. He has no reason to doubt that in the new era, the people''s army can still continue to create miracles. Whether this is despair or hope, even Zhou Shuwan himself has never been able to tell clearly. ?Hence, he almost never argued with those people, or even thought about the issue in detail. Because he is afraid. Afraid of being persuaded. It was not until Zhang Man went abroad that he gradually began to think and discuss with some colleagues. About how to find hope in despair. In fact, to put it harshly, its YY. But it is always a slightly more reliable YY. So, the conclusion is nothing more than Just like countless times in the past, huge sacrifices were made in exchange for a tragic victory. ?Of course, there may be many ideas on how to win. But no one has ever thought that we can rely on technology and equipment, even those of the same generation as our opponents. Suddenly, Zhou Shuwan seemed to have returned to three years ago, when he had just teamed up with Chang Haonan to do coursework. After finalizing the seemingly crazy plan, several people once went out for a roast duck. That night, they talked about fighter jets and the Air Force. As usual, we talked about every subtle improvement of the J-8II and the mass-produced F22 that is about to fly for the first time. At that time, Chang Haonan once said to him: Dont worry, there will be something, it will be there. At that time, he just thought it was a casual comment from the other party. But looking back now, maybe thats not the case. The J-10 did appear 20 years later than the F16. But in the end, it appeared before the F22 entered service. There is no generation gap. I really have it all ??When Zhou Shuwan came to his senses, only the last helicopter formation rumbling away from Chang''an Street was left on the TV screen. The military parade is over. ??But the impact of the military parade is far from over. In the auditorium, the emotions that the students had just suppressed finally burst out. Just now...was that J-10 just now? Quite a number of people have heard of the existence of this model. Some people have even seen photos circulated on the Internet during the test flight. But that is not public information after all. ?Who can guarantee that it is true? In other words, who dares to believe it is true? You should know that the J-7E was only equipped with troops six years ago. The J-8C was only equipped with troops two years ago. But this time Public appearance at the military parade, and direct confirmation by the commentator... How can it be false? Someone on the other side of the auditorium quickly stood up and answered loudly: As I said on TV just now, if our country develops and produces by itself, what else can we do besides the J-10? And I see that there are still missiles hanging on them. Does that mean they have been equipped with troops? Other people speculated. Youve all gone to the military parade, so you should be serving, right? But I heard that the J-10 seemed to have made its first flight only the year before last year, and it was put into service within two years... Isnt this unreasonable? After all, everyone here is studying aviation. At this time, our minds are still relatively calm. "That...at least it''s fast. Otherwise, who would dare to fly an unreliable aircraft into the military parade?" "really" That makes sense. Obviously this statement is recognized by the vast majority of people. ? ? However, the discussion will not stop because of this... ? ? The model has been confirmed, and then there is the performance. I think that since the country has decided to make this model public, there will be more detailed reports on TV soon. ?This year, in order to satisfy the people''s growing interest in military and weapons and equipment, CCTV has launched a series of programs such as "Military World", and the ratings have been quite good. But soon, someone turned their attention to the teacher on the podium: Teacher, can you analyze it for us? As this voice howled out, the auditorium was quiet for a moment. Everyone reacted immediately When talking about airplanes at the Aeronautical and Astronautical University, arent there ready-made experts? Yes, teacher, please tell me about it? ?The person in charge of showing the TV on the stage was a young lecturer who had only been in the job for two years, and everyone was numb at this time. ?Although most of the people in the auditorium are undergraduates, there are also many masters and senior Ph.D.s. He may not be older than some PhD students who have completed their studies. I have never seen such a formation. Besides, he doesnt know anything. ?How can anyone guess the performance just by looking at the appearance, or even by watching it on TV? Fortunately at this moment, the door of the auditorium was suddenly pushed open: The plane on the military parade just flew over near our school, and someone took a photo! The whole room exploded in an instant. ? Feeling that the situation was a little out of control, the teacher quickly found an opportunity, took out the mobile phone he had just bought, and called Tang Lintian, asking the principal to find a way to control the students'' ignited passion... In fact, the shock caused by this military parade went far beyond the country. ?Subject to the limitations of rebroadcast technology, the live broadcast signals received by countries and regions outside China have considerable delays. ?Even most countries will not specifically broadcast live broadcasts at all. After all, even in today''s timeline, China in 1999 was still not a country that attracted much attention and topic for most foreigners. But for overseas Chinese, this meaning is completely different. ?Birmingham, UK. ? Zhang Man and his roommates were sitting in a bar run by Chinese people, watching the footage broadcast by CCTV International Channel with a few local Chinese people. Compared with the joyful national celebrations at home, here, even in this bar full of Chinese people, the atmosphere is much duller. ?The reason why most people gather here is more of a nostalgia for their hometown, or in other words, a sense of ceremony. Zhang Man was the only one who was very fascinated by what he saw. Even the hand holding the wine glass turned slightly white from exerting too much force. Two years ago, she graduated from Beijing Airlines and came to Birmingham to study for a PhD. At that time, neither Zhang Man nor her family thought about letting her go back. However, after more than two years of studying for her Ph.D., her ideas began to loosen As a smart person, she soon discovered that as a Chinese, it was impossible for her to get access to any core projects here. Although she had no worries about graduation, it might be difficult to find a truly relevant job in the UK. ??The way for most "predecessors" to stay here is to directly marry a foreigner. But Zhang Man is a rich and beautiful person at home. If this is what he wants, why go abroad? He can just find a wealthy son-in-law at home and be done with it. Furthermore, there is discrimination. It may not even be intentional. But unintentional strange looks are sometimes even more difficult to accept. Zhang Man looked at the picture on TV and drank all the wine in the cup. She is still not interested in the military, and her current research is in a rather fringe field that has nothing to do with aviation, so she doesnt know much about the equipment that appeared in the military parade. What she misses even more is the mass celebrations that followed but no one paid much attention to in the country. Since going abroad, I havent experienced such lively scenes for a long time. Perhaps...it would be good to go back after graduation? ?She thought so. Compared to Zhang Man who was just thinking wildly, there were others who were paying attention to more professional matters. ??Although the general public will not pay attention, researchers in related fields cannot miss this opportunity. Especially the Europeans who are already cooperating with China. Whether it is because interests are tied to cooperation with China, or simply out of a rational analysis of Chinas scientific research level. In short, at least some people have begun to try to look at this familiar but unfamiliar country from a rational perspective again. About an hour after the military parade ended. ?Charles Edelstein strode into the office of Serge Dassault, the second generation head of Dassault. ?Hand is still holding a document that has just been printed out. Mr. Dassault, I think you should take a look... ? ? Ed Steiner was only halfway through his words when he discovered that the TV set not far away was actually playing the content he wanted the other party to watch - China''s National Day celebrations. Whats the matter, Charlie? ?Dassault turned his head and looked at his old buddy with some curiosity. Now that youre looking at it, its easy to say. The latter pointed to the TV screen. Are you talking about these performances? ? Dassaults gaze returned to the TV: It was boring at first, it was all... you know... unoriginal praise, but the later parts were exciting, especially the dance, which was very creative. ? Ed Steiner waved his hand helplessly: "Of course not...I mean the military parade in front." ??He said and put the folder in his hand on the desk: The Chinese exhibited two new types of fighter jets. ? Dassault glanced down but did not open the page: I saw it. One is the Su-27 produced by introducing Russian technology, and the other is a light fighter that is somewhat similar to...well...at least similar in size to the F16. Of course, it should be larger than the Mirage 2000." Speaking of this matter, he was quite irritable. ?Originally, his father, Marcel Dassault, had already presided over the development of the heavy-duty Mirage 4000 fighter jet, but the French Air Force was not interested in it. ?However, after the project was terminated, the Ministry of National Defense actually proposed to launch a research and development plan for a 9-ton fighter aircraft common to the navy and air force. It is also the later Rafale fighter jet. Originally, the research and development process was relatively smooth, and the mass-produced Rafale C was scheduled to enter service in 2001. But just at this critical moment, the Snecma Group, which was responsible for providing power, suddenly lost its chain. Because General Electric suddenly decided to withdraw the technical support it provided during the M88 development process, about 15% of the parts were unable to be supplied on time. The entire plan is now almost at a standstill. ?Looking at the next door, EF2000, which they withdrew from back then, is singing fast and furiously, and is about to catch up from behind. If we continue like this, we will lose to the United States (F15), Russia (Su-27), Russia to the United Kingdom (EF2000), and China (J-10), and finally we will have nothing to lose. ? General Electrics wave of salary cuts is not a slap in the French Air Forces butt, but a slap in the face of Dassault. But trouble comes to an end, and there is really nothing we can do. ?Having already said all the good things, the other party cant be embarrassed and buy the British EJ200 when he is so stubborn, right? ?Does that make you worthy of being a Frenchman? We can only wait and see when Snecma can solve the problem alone. ?However, Ed Steiner took the initiative to open the document. Inside is a color printed picture. It is a three-machine formation. Taken from behind. Obviously cropped and enlarged, of course. Im not talking about the plane itself. He pulled up a stool, worked on it by himself, and said to Dassault: Our reporter at the front took a photo from a good angle. Ed Steiner said as he stretched out **** and tapped lightly on the engines of two of the planes. "According to our analysis, the aircraft in the front should be a basic Su-27 assembled by China using Russian-made components, while the aircraft in the back, and of course the other one that was intercepted, are produced by the Chinese themselves. Of course , maybe the electronic equipment has also undergone some improvements, but thats not important. It can be seen that the engines of the two aircraft are completely different. ?? Serge Dassaults professional skills in the field of aircraft design may not be as good as his fathers, but to be able to maintain a huge family business like the Dassault Group, he is by no means a novice who is completely ignorant of technology. In fact, he graduated from the Ecole Suprieure de lAronautique et Srieure in France and has participated in the design of aircraft ranging from the Super Mystique to the Mirage 4000. Hence, when Ed Steiner pointed out those two places, he had already seen some clues. ? Dassault picked up the remote control and turned off the TV: This model outside uses an ejection nozzle. ?At this time, he had vaguely understood the key points of Ed Steiner''s words. Snecma Group is almost the only one in the world that is keen to use ejection nozzles on fighter engines to reduce engine weight at the expense of some low-altitude performance. But it seems a bit far-fetched. After all, its just a spout design. What can the same mean? Thats right. ? Ed Steiner replied: Actually, its hard for me to explain why I had this idea, but anyway, I just contacted Snecma Group and asked them if they have any relevant information about Chinas third-generation turbofan engine. "The answer they gave me was that about 10 years ago, the Chinese started a third-generation turbofan engine project based on the F110 engine, using the CFM56 as the core engine. Initially, they even tried to seek help from Snecma. Some technical help was provided, but soon, as the relationship between us and China turned cold, there was no follow-up news. So you think Dassault frowned slightly: It took the Chinese people ten years to install a high-thrust turbofan engine on a mass-produced aircraft? ?Although he didn''t say it directly, his expression clearly showed that he didn''t believe it - CFM56 is said to be jointly developed by the United States and France. In this way, Snecma has spent almost 20 years developing a mid-range model based on it. In the end, many parts still need to be produced in the United States. On the other hand, the Chinese people have received very few CFM56 data. How can they spend 10 years from scratch to create a big promotion to the standard F110? How about playing? Not that I think ?Ed Steiner shook his head: I also think this is unrealistic, but these four engines are clearly different from any known model in the world. "If it is made in Russia, there is no need to specifically replace the tail nozzle. And according to the news from Sagem, almost all the engines exported by Russia to China in recent years are high-bypass-ratio models, such as PS90A and D436T. Clear and logical. Dassault was speechless. So...you mean, maybe the Chinese have the key technology to mass-produce CFM56? At least there is a possibility. ?Ed Steiner replied. In fact, his entire analysis process was inconsistent. But because there were so many errors, they canceled each other out in the end, and we got a conclusion that was very close to the correct one... (End of this chapter) Chapter 772 Celebration dinner Chapter 772 Celebration Dinner ??This important event marks half a century after the founding of the People''s Republic of China, and it coincides with the eve of the millennium. Naturally, it cannot be ended with a simple military parade. ?The mass celebration does not end immediately after the one-hour official session, but there is still a part where you can actually play. ?Especially after the lifting of martial law, people who were originally locked up at home, or who were previously responsible for live performances and were unable to escape, can also participate. Many teams have celebrity representatives, such as well-known athletes, actors, artists, etc. For ordinary people in this era when entertainment methods are relatively scarce, there is no Internet, and there is no short video live broadcast, these people are still relatively mysterious. It is a very rare opportunity to meet a real person. ??Definitely not let it go casually. However, this is the real "Caile de Coral". ?Most people who can go to the viewing platform each have more important things to do... Xiao Qin, what happened to the one you just said would definitely be a hit? Shouldnt the focus be on the magazine? ??But the latter has one good thing. Although he doesn''t know much about business, he basically won''t interfere in the work randomly and directly accepts Qin Chengbang''s ideas. You think, since the target of installation is the J-11, which is the domestically produced Su-27, a reasonable analysis shows that the engine performance should also be comparable to the AL31F. At this time, Chang Haonan did not know that his turbofan 10 had been analyzed in Europe and Asia to find two completely different, but both very outrageous, technical sources. As usual, there will be some visiting activities in the afternoon, but fortunately, the Aerospace Power Group is a newborn that has only been established for three months, and there are no retired leaders, so this can be ignored. Im just warming up the magazine. I remember that time I specially displayed the engine and wrote a big sign on it. You said youve never heard of it before? Why did you write it in such detail? "Um" Because their magazine is an album in nature, it uses coated paper that is not very common in this era for high-definition printing. The price is as high as 20 yuan per copy, which is a level where you need to grit your teeth before buying it. Except for some enthusiasts, most people are Buy it on the fly, or buy it together with multiple people. Lets speculate further. Since Project 11 has introduced the Su-27 production line, is it possible that the AL31F technology is also in the introduction project, but it has not been made public? Of course we cant, but just because we cant, we have room to play. ?This idea, even in the Internet era, is not considered backward, but Liu Jianshe was stunned when he heard it. Do you still remember the time we went to the Xiangzhou Air Show? Qin Chengbang originally wanted to explain it in detail, but the professional cameras these days all use film, and there is no way to directly tell what is being photographed before it is developed. This cant be considered an official confirmation, right? Logically speaking, if the two of them, one deputy editor-in-chief and one deputy editor-in-chief, go out to do things, they must have another driver. However, every pass for the National Day ceremony, even if it cannot enter the infield, is difficult to obtain, so you have to do it yourself. On. I just discovered that the two outermost aircraft in todays domestic new-generation fighter formation use new engines that I have never seen before...in fact, I have never heard of them. ??Qin Chengbang is obviously much more proficient in business now. Combined with his understanding of the psychology of readers and a little professionalism, he deserves to have his magazine become popular: For most of the 1990s, the J-8 was one of the few things that Chinese military fans could pay attention to and discuss. There was no new Britannia that could replace it, and it was considered top-notch. Especially for the J-8, from the Turbojet 7 to the Turbojet 14, it has changed into three large models and seven or eight sub-models along the way. In addition, many media have used traditional entertainment with random pictures. It is actually impossible for outsiders to compete for one. Come two or three. Liu Jianshe started the car, quickly put the reverse gear on and prepared to leave: ??Discovered that an estimate of the performance of the new engine has been written. Qin Chengbang''s thoughts are flowing like a fountain. With just a few seconds of speaking time, he has already typed almost half a page of content: "Our newspaper is in black and white, and the space is limited. We can only put one or two blurry photos. Nothing can be seen at all. When the analysis article is published tomorrow, I guarantee that everyone who is interested will want to read the follow-up , and then put an advertisement for our magazine at the end of the article... Hey, just be ready to print more, maybe you can issue another supplement..." Ill finish writing the article about this engine before I get off work in the evening. When I get back, Ill ask the printing shop to work overtime. Its best to publish the analysis article in the newspaper tomorrow. ?However, while the car was queuing up at the exit of the parking lot, he still raised his head and glanced at Qin Chengbang''s computer screen. When talking about this topic, Qin Chengbang finally raised his head slightly and showed a smile: I really havent heard of it, but I can guess. For Liu Jianshe, newspaper space is actually no longer important. Most of his income is in special magazines. Qin Chengbang stared at the computer screen, typing rapidly on the keyboard with both hands, obviously starting to write: ?Its just that the threshold for these two activities is much higher than watching a military parade. Liu Jianshe has now given up on explaining that "I was completely guessing back then" and just nodded, gesturing for the other party to continue. "So, I reasonably speculate that this model should be developed on the basis of AL31F, which means that the performance should be better, close to the level of the improved AL31F..." The reason why the news of that time exploded was not only because you predicted in advance that there would be new aircraft models at the air show, but also the important point was that it directly and publicly demonstrated the turbojet 14 engine that the public had been speculating about, and through flight The performance proved that the performance parameters on the display board are reliable, and it is a huge encouragement to the vast majority of people in the country who are concerned about aviation, or at least interested in aviation. In this year, most people can only obtain information through radio and television and traditional print media, and these two channels are not very optimistic in terms of information volume and timeliness. So it is necessary to raise user expectations in advance So, at the air show that year, the official directly ended the mass production and service of the real-hammer turbojet 14, and its influence was absolutely full. ?In a media interview car, Liu Jianshe put the equipment bag in the trunk, then got into the driver''s seat. While starting the car, he asked Qin Chengbang, who was playing with a laptop in the passenger seat next to him. But he still had to attend the afternoon celebration dinner and the subsequent evening performance. For him, the military parade is just the first activity on National Day. ?Things like "Whether **** aircraft uses **** engines?" will be debated by netizens of different factions for many years 20 years later, let alone in the 1990s. ?Those like Zhou Li and Chang Yuanchao will definitely not be able to participate. ?Its just that for the old couple, they would be satisfied if they could go to the capital to watch the military parade in person in their lifetime. The two of them didn''t even let Chang Haonan send them back. ?So the latter, together with many guests who came to Beijing from other places, were sent to the Great Hall to rest. After lunch, because Chang Haonan did not have the habit of taking a nap, he walked around the lounge to eat. But at this time, I suddenly heard a voice from behind. Mr. Chang? He turned around and saw a middle-aged man who was estimated to be in his fifties, but whose hair was already half white. The face was a bit familiar, but I couldnt remember where Id seen it before. He had no choice but to lower his head and glance at the identity tag hung by the other party. OhMr. Lin, long time no see ?Lin Qing, chief model engineer of the 701 Institute of China Shipbuilding Industry Group. The two had met once at the Xiangzhou Air Show in 1996. The latter was worrying about the selection of a new generation of domestic frigates at the time. He happened to see the turbojet 14 that Chang Haonan and the others brought to the exhibition, and hoped that the aviation industry would The system can develop a light marine gas turbine with a sufficiently high localization rate on its basis. That is the QC130 that Yan Zhongcheng later took the lead in taking charge of. ?However, because Chang Haonan was not involved in the aeroderivative fuel project, the two never met directly again after that. It has only been three years, but Lin Qing looks like she has aged ten years. It is obvious that she is under a lot of pressure from work. ?Chang Haonan turned around and shook hands with the other party. Today, you have taken out all your housekeeping stuff... As he spoke, he quickened his pace and walked next to Chang Haonan. What he is talking about is naturally about the domestically produced third-generation aircraft. ??The Army has a new main battle tank, the Air Force has a new fighter jet, and the Navy... ??The Navy has received a batch of new amphibious infantry fighting vehicles. We all have a bright future. Its not considered a housekeeping thing Chang Haonan smiled and shook his head: These are all old projects from two or three years ago. The real wealth cannot be thrown away casually..." ?This is really not what he said in Versailles. Because the improved J-11B and the new J-10, which can be said to be completely reborn, are progressing smoothly, intensive testing will begin soon. Actually, Chang Haonan is looking forward to it very much. ??This somewhat sudden public appearance of the J-10 will probably make everyone think that the Air Force will soon be equipped with this model, or even have already equipped it. Especially those foreign institutions that conduct open source intelligence analysis. Waiting for them to analyze the J-10 in its original form... It is estimated that the improved version will be unveiled soon. I dont know how explosive their mentality will be at that time. Lin Qing was speechless Do you think this is human language? ??In terms of naval equipment, the "new" warship is still the 052 that was commissioned in 1994... As a result, according to the aviation industry system, the project two or three years ago is already an old project? Be a human being! So I had to look at him from left to right: Speaking of which, Mr. Chang, I heard that you took over a big project from the Hudong Factory? ?This sudden change of topic made Chang Haonan stunned for a moment, and then he realized that the other person was talking about things at the Torch Group: Yes, Hudong Plant wants to cooperate with the French to build LNG ships, and we have been entrusted with some technical details to solve. Thats a coincidence. Lin Qing pretended to be surprised and said: You still remember the new frigate I told you about when we last met, right? ?Chang Haonan nodded. How could I forget this? The famous 054. It is also the original 054 project that was abandoned in the previous generation due to technical and cost reasons. The kind that uses full combustion power and 3K95 vertical hair (Haikidoyle). After a little preparation, Lin Qingtu suddenly saw: "In June this year, the keel laying of the first ship has also started at the Hudong factory. I should be working at the factory in the second half of the year. If you go to Hudong anytime, you can also take the time to take a look. After all, the fuel used on it is Its you who facilitated the research and development of the machine. ?Chang Haonan stopped and turned his head to look at Lin Qing. He was originally going to say that he might not be personally responsible for LNG matters. ?But on second thought, even if I am not personally responsible, the cooperation between Torch Group and Hudong Factory is the first cooperation between an aviation power group and a shipbuilding industry group. Definitely still going. So he nodded. Besides, seeing the boat yourself is probably not the main purpose. Perhaps there is some cooperation to discuss. Actually, he was right. From the first time he saw Chang Haonan, Lin Qing was sure that this young man had extraordinary abilities. At that time, he even thought about whether to dig into the shipbuilding industry system when the other party graduated. His idea is also very simple - although Chang Haonan went to Beijing Airlines, no one has ever stipulated that students graduating from Aeronautics and Astronautics University must engage in aviation. When the time comes, he will offer a higher salary, promise some other benefits, and get a It shouldn''t be difficult for a freshly graduated Ph.D. As it turns out, his unusual estimate was too conservative. In the first year of his Ph.D., he had already worked as a model chief engineer and the person in charge of a second-level state-owned enterprise next door. By the time they graduated, they had already become members of the leadership team of the Aerospace Power Group. How to dig this? I can only find a way to knock on the side to engage in project cooperation. (End of this chapter) Chapter 773 Meeting old friends again Chapter 773 Meeting an old friend again The National Day Dinner, in terms of organizational form, is actually very similar to the one when Chang Haonan received the National Science and Technology Award. ??It''s still the banquet hall on the second floor of the city hall, it''s still 10 people per table for dining, and it''s still the same classic Huaiyang cuisine. Its just that the level and scale are much higher. The banquet hall, which can accommodate 5,000 people, was almost full. To Chang Haonans surprise, he was assigned to table No. 7 ??The table divisions at this dinner were probably based on different industries and identities. For example, certain tables were for academic representatives, certain tables were for the People''s Liberation Army, and certain tables were for student representatives. Some things that are not easy to separate, break them up and insert them. ?But the first seven tables are different. is the main table. ??Each table will be assigned a boss. Apparently there is some restraint. Relatively speaking, Chang Haonan has no particularly eye-catching characteristics. Two years ago, Chang Haonan received his first heavyweight honorthe Chinese Youth May 4th Medal. After not seeing each other for two years, Qin Wengui gave people the impression that he was a little more vicissitudes of life than the last time we met. Qin Wengui, Qin Gong? In other words, there are only 63 positions in total. ?At that time, Qin Wengui was the one who received the award with him. And at this table, he actually saw two acquaintances. ?However, Qin Wengui''s iconic white hair is quite eye-catching even among the generally older people at the front tables. Is Gong Qin still working on the oil front line? At least it was bigger than when they went to receive the May Fourth Medal. It can be said that it is quite difficult to get one among them. He recognized Chang Haonan immediately: Uh... Chang Gong, hello, hello. But to participate in an occasion like today, you must take care of yourself in a mature direction. Zheng Liangqun, who had just flown over Tiananmen Square in the morning, was quite expected, but the other one surprised Chang Haonan somewhat. So Qin Wengui didn''t suddenly raise his head until his name was called out. . ??If you were sitting in an office, Im afraid there wouldnt be such a big change. Except for being young. After all, although the big guys havent entered the scene yet, the current formation is definitely considered a big scene. ?? Qin Wengui''s face showed a bit of surprise at meeting an acquaintance, but when he spoke, there was no tone of voice, and he was not even coherent. Actually, the two of them had only met once in the past, and Chang Haonan''s impression of the other people was even somewhat vague. "yes." Qin Wengui nodded: "After I went back last time, my superiors asked me if I wanted to be transferred to the headquarters in Shanzhou. However, I felt that I had to deal with the field at hand. Besides, I also have a project at hand, which is about simplifying deep well mining. As for the casing process and this kind of production technology, it is impossible to conduct research on it unless you are on the front line, so I didnt agree. ??Qin Wengui is not an ordinary oil well operator, but a senior engineer, a high-level application-oriented talent. Thats now Oh, drilling in Qingtang Bureau. Although many state-owned enterprises have begun de-administrative reforms in recent years, units such as petroleum and forestry are generally located in remote locations and have huge jurisdictions. Their business also requires them to have certain administrative functions, so they have not been reformed along with them. ?Hence, large oil fields such as Qingtang Bureau are still on the same level as prefecture-level cities, and their affiliated drilling offices are also equivalent to a municipal-level bureau. Qin Wengui was able to reach this position at the age of 38, and his progress is definitely very fast. Forget it, lets not talk about me for now. ?After chatting with an acquaintance, Qin Wengui gradually relaxed: Calculating the time, Chang Gong should be graduating soon. Are you planning to continue your studies or go somewhere higher? ??When this question was asked, before Chang Haonan could react, Zheng Liangqun, who had been sitting next to the two of them and listened, immediately stopped and covered his face and laughed. Actually, Qin Wengui really just found a reason to ask ??He didn''t know the other seven people at this table at all, but they all seemed to be in high positions at first glance. Only chatting with Chang Haonan can relieve the tension. The petroleum industry and the military industry are two completely different lines in administrative management. Let alone the leader of a second-level central enterprise, Qin Wengui may not even know who the director of the Commission of Science, Technology and Industry for National Defense is. ?Just like Chang Haonan, he doesnt know who the general manager of Huaxia Petroleum is. ??When the two of them received the award together, Chang Haonan''s title was quite eye-catching "student". According to normal time calculation, it is true that I will graduate from graduate school next year. From Qin Wengui''s point of view, since Chang Haonan has already sat at this table, it must be a bright future. It is obviously a good topic to ask him about his plans after graduation. Its just... In the end, in order to prevent Chang Haonan from bragging, Zheng Liangqun took the initiative to explain the current situation to him. Qin Wengui: ?The scene was very embarrassing for a time. Fortunately, the awkward atmosphere did not last long. Are you Chang Haonan from Beijing University of Aeronautics and Astronautics, Professor Chang? A voice sounded from behind Chang Haonan. He turned around and saw a middle-aged man who looked to be in his forties. "I am." He stood up and picked up his glass of wine. Because I dont drink alcohol, it is filled with water. ?However, in this situation, it is obviously impossible for someone to actually persuade you to drink. "May I ask you are" Chang Haonan has just been a professor for more than three months, and he is still not used to being called professor. Compared to model chief engineer and chief planner, this title is not as widely circulated. Tian Gang, a professor at Yan University, Department of Mathematics. ?The other party replied: I have admired your name for a long time. When I was walking past here just now, I heard this comrade general introducing you, so I came here to get to know you. ?Chang Haonan thought for a moment and finally remembered the identity of the other party. I saw this name when I was reading the paper before. Study of differential geometry. I then remembered that in the last life, Professor Tian seemed to have had some written disputes with another differential geometry master, Qiu Chengtong. ?However, Chang Haonan''s understanding of this is only at the level of gossip, and he has no idea of ??who is right and who is wrong. I dont want to have a concept either. ?This kind of rhetoric in academic circles will not produce any results in the first place. ?Although he does want to make some noise in the mathematics community now, it is mainly to prepare for setting up academic journals and even research institutions in the future. In the final analysis, Chang Haonan is not involved in the mathematics circle. More importantly, he has abundant resources at hand, so there is no need to get involved and cause trouble for himself. It turns out to be Professor Tian. He clinked glasses with the other party: I have read your paper before and got a lot of inspiration. If I have the opportunity, I hope to ask you for advice. ??Hand out your hand to avoid hitting the smiling person. Although he didn''t know if the other person had any purpose in approaching him in such a slightly blunt way, but since others showed such a good attitude first, he must also be polite. Actually, Tian Gang''s thoughts at this time are not that complicated. Simply he received a review invitation from the Annals of Mathematics. ? is a proof of two assumptions in the field of differential geometry. There is nothing wrong with the content. ??If published, I am afraid it will play a significant role in proving the Poincar Conjecture. It can even be regarded as the most influential paper in the field of differential geometry in the second half of the 1990s. At least, there is no problem in naming these two lemmas after their authors. ??The institution of being the only author and corresponding author made him a little concerned Beijing University of Aeronautics and Astronautics. ?This is not a school that specializes in theoretical mathematics. ?Tian Gang has never even reviewed papers from this university in the past. I happened to hear Chang Haonans name by accident today, and out of curiosity, I came over to get to know him. ?Of course, logically speaking, reviewers should not have direct contact with the reviewees. ?Some journals even perform blind review so that reviewers cannot see the authors information. But practice is another matter. ?Especially in small circles like theoretical mathematics. ?There are only a few people in each direction, and almost all of them know each other. If you really want to strictly implement the avoidance principle, then there is no need to review the manuscript. So I dont pay much attention to these. ?However, just when he was about to say something more, a burst of music suddenly sounded, followed by the host''s voice announcing that the dinner had officially begun. ?Everyones attention also turned to the leaders who came to the rostrum to give congratulatory speeches... (End of this chapter) Chapter 774 Shock in the mathematical world Chapter 774: Shock in the Mathematics World In fact, Tian Gang was not the only one who was curious about Chang Haonan. New Jersey, United States. In the editorial office of the Annals of Mathematics of Princeton University Press. ?Shortly after arriving for work, Richard Hamilton walked into the office of senior editor Mikael Lagerstedt. Professor Hamilton? The latter raised his head and was a little surprised when he saw the identity of the person: How did you Of course its because of the paper you gave me for review a few days ago. Hamilton sat across from Lagerstedt and took out a manuscript from his briefcase: I came to Princeton to attend a conference, so I brought it to you on the way. In the 1990s, review comments were still in the parallel stage of online and offline review. There were not many people like him who wrote review comments by hand and then sent them back to the editorial department. From the time I sent the review invitation to the other party, less than a week has passed since I was fully prepared. In addition, the author also wrote about the Poincar conjecture, so he decided to submit it directly to several big guys in the field of differential geometry for review. I found that I seemed to be able to understand it. Ragstedt thought in annoyance as he opened the manuscript Hamilton had brought. Lagerstedt suddenly felt a little regretful. But there are still not many cases where it is delivered in person. Such articles from unknown research institutions and unknown scholars should be more cautious and handed over to some lesser-known second- and third-rate professors for review After finding this paper in his mailbox, he read it again. Serious mathematicians, no matter how good they are, would not do such a bad job. ?Thinking of this, Ragstetter''s expression was a bit ugly. As an editor of a mathematics journal, he graduated from the Princeton Department of Mathematics with a master''s degree, but he knew that he was not an academic person, so he became an editor. I knew...there must be something wrong with a paper that even I can understand..." In other words, it was written by Minke. ?The paper with serious problems should not be sent to the reviewers. The editorial department itself is responsible for pre-reviewing the submitted manuscripts. Lagerstedt quickly took it into his hands: Is this so fast? Generally it means that there is a serious basic error somewhere in the article, so that there is no need to read the following content at all. For a mathematics paper, especially a mathematics paper that can be published in a mathematics journal, this review speed is... very abnormal. Then I saw ??If an inaccurate article is really sent for review, or it is sent to a big boss like Hamilton, it will be a huge blow to him, and even to the reputation of the entire Annual Mathematics Journal. In particular, the author of the paper also claims that his research will help solve the Poincar Conjecture. Suggestion for publication. "ha?" ?Lagerstedt, who had already done enough psychological preparation, didn''t even react for a while. After being dazed for a while, he raised his head and looked at Hamilton opposite: You mean...this paper can be published directly? The latter was also stunned. Lagerstedt has been an editor of the Annals of Mathematics for almost thirty years, and he can ask such nonsensical questions, just like Perelman suddenly asked him whether 1+1 is equal to 2. ?His first reaction must be - there must be some other deep meaning behind this. ?But after thinking for a long time, Hamilton could not think of any other meaning besides the literal meaning, so he could only nodded: Strictly speaking, it is recommended to be published directly. I am only one of the reviewers. Doesnt the final decision rest with your editorial department? NoI mean Fortunately at this time, Lagerstedts IQ gradually began to regain the high ground: I mean, I didnt expect you to give review comments so quickly. Speaking of this, I am very interested in this author. Hamilton sat up straight and said solemnly. So...this article can really promote the proof of the Poincar Conjecture, as he said? Lagerstedt also gradually relaxed. Thats right. Hamilton nodded, then suddenly smiled. "What''s wrong?" Lagerstedt''s heart was filled with doubts again. Nothing, I remembered something interesting Hamilton waved his hand. In fact, he was thinking of the parody of Fei Mas words at the end of the paper. Mathematics is boring to most people, but not necessarily to mathematicians. ?At least Hamilton didnt mind adding some witty language to his paper. Ahem After slightly adjusting his tone, he cleared his throat and continued: "The two proofs given in this paper are two tools that the differential geometry community has been looking for. Although they cannot be directly said to be the key to unlocking the Poincar conjecture, they are at least a step forward in a possible direction. " I think Perelman will be very interested in this article. Before returning to Russia last year, he was studying the use of Ricci flow to prove the Poincar conjecture. Hearing this name, Lagerstedt was also a little helpless: I originally thought about sending the paper to Professor Perreman, but I was worried that he would not reply to us for a long time... ? Grigory Perelmans character is quite eccentric, fitting many peoples stereotype of the weird Russian genius. It doesnt matter, he will always see it. Hamilton waved his hand, and then returned to the previous topic: What I just wanted to say is not the content of this article itself, but the authors way of writing the paper, or the way he thinks. Lagerstedt did not reply, but showed a puzzled expression. "This article is an expansion based on the theory of Ricci flow. Although it cannot be regarded as establishing a completely new theoretical framework, it still involves some new concepts and new methods. Logically speaking, it should take a long time to complete Understand. Hamilton paused here, but continued: "But when I read this paper, I almost didn''t feel any obstacles to understanding. You must know that combinatorial Ricci flow is the most cutting-edge research field in the field of differential geometry. Even if I, or Perelman, want to explain It is also quite difficult to understand a brand new result..." ?Lagerstedt nodded to show that he understood what the other person meant ?No wonder he thought he could understand it before. The author seems to know where we readers will encounter difficulties in understanding. Almost every step he writes in the paper explains these links accurately. ?Hamilton held his chin in one hand with a serious expression: This reminds me...the teacher, to be precise, the enlightenment teacher. "What''s the meaning?" ?Hamilton took a deep breath and replied: Only people whose thinking level is much higher than that of readers can write articles in this way. Lagerstedt''s pupils shrank suddenly. If someone else says this, then thats it. But this is Richard Hamilton. The thinking is higher than him, what kind of monster is that? For a while, the two people in the office were speechless. After a while, Hamilton spoke again: The wonderful proof that Fermat did not write has made mathematicians around the world work hard for more than 300 years. Im worried that if we miss this opportunity, we will be delayed for another 300 years... (End of this chapter) Chapter 775 Do you understand turbofan 10 or do I understand turbofan 10? Chapter 775: Do you understand turbofan 10 or do I understand turbofan 10? Richard Hamiltons evaluation was, after all, made only in the editorial board of the Annals of Mathematics, not at an academic conference. Lagerstedt is a careful person, and he cannot talk nonsense with a big mouth. Hence, it may take some time for this influence to spread. For Chang Haonan, the military parade has a greater impact. To be precise, it is the equipment unveiled at the military parade. October 8th. According to Chang Haonan''s plan, his main focus after the holiday will be on developing specific algorithms for manifold learning. After all, the group''s development plan has been basically set. Normally, a chief planner who does not hold the title of deputy general manager will not have much daily work on him unless he holds a party committee. Of course, after all, he is a well-known leader in the group. He cannot be missing on the first working day after the National Day holiday. Therefore, Chang Haonan decided to go to the office to sit for a while and then go back to school after lunch. side. It is similar to what he predicted before. Almost all analysts believe that the ones displayed at the military parade should be very close to mass production. ?But this time, Chang Haonan guessed wrong. As a result, as soon as he arrived at the office and poured himself a glass of water, before his **** was warmed up, he saw Zhang Liangping from the General Affairs Department appearing at the door. The latter knocked lightly on the door. So, when he appeared here, he most likely came with a "mission". After hearing this, Chang Haonan finally breathed a sigh of relief. ?As soon as the other party came in, he put several newspapers and a magazine on the desk. In the era of paper media, the speed of information circulation was very low. Then he took the pile of newspapers and periodicals in front of him and briefly browsed through them. Actually, Chang Haonan himself has read a lot of news and newspapers in the past few days. Judging from the tone, it seems that you are in a good mood. Come in and sit wherever you like. Mr. Chang, during the National Day holiday, I have collected some media reports on this military parade, especially on the air formation. Please take a look. You must know that this is not the era of self-media with the explosion of information. If the engine of the plane is changed, as long as the first person sends it, it will soon spread throughout the entire network, and the whole world will know it without waiting until the next day. Zhang Liangping was actually the personal secretary assigned to Chang Haonan by the group. He just followed the spirit of the superiors'' regulations and avoided mentioning these two words directly. Mr. Chang? The focus is actually on the two J-11WS verification aircraft, or in other words, the turbofan 10. The main perspective of those reports naturally focused on the J-10 prototype that was unveiled for the first time. Available in both Chinese and English. ?However, what Zhang Liangping collected for him was different. But Chang Haonan''s heart skipped a beat and he couldn''t help but sit up straight: Even if more professional media or open source intelligence analysis organizations notice the existence of Turbofan 10, the news will not spread widely. The reports in front of me all focused on the new engines on the two Flankers, which were obviously specially screened by Zhang Liangping. Providing leaders with summaries of news reports is indeed one of the secretaries jobs. But to single out what was said about the Turbofan 10 so precisely The road is getting wider, boy. ?Chang Haonan is really willing to watch this He certainly does not need to gather any information from these external sources. Mainly, there is the pleasure of "parents showing off their children in the circle of friends, and then secretly peeking at the screen to read the comment section." ?So, Chang Haonan opened the first newspaper with great interest... This report, which was published on October 2 and occupies more than half of the page, is very informative and provides a detailed analysis of the importance of the J-11 to the Chinese Air Force after it is fully localized, as well as the two future third-generation aircraft. Fighter positioning problem. Also added a very eye-catching comparison with the Air Self-Defense Force F15J. It''s a pity that the author has a good idea and stops abruptly at the climax, and claims that there will be more detailed content in the album and magazine to be released later. Out of curiosity, Chang Haonan found the beautifully bound magazine again. ?Then I couldnt hold myself any longer. The content in the magazine is indeed very detailed. Not only does it have large color photos, but it also takes more than ten pages to vividly describe the process of the introduction, localization and improvement and upgrade of the "Wolffan 11 engine" along with the J-11 - Thats right, this article describes the Turbofan 10 as an upgraded model of the AL31F. ??And because it was installed on the J-11, I directly clicked the name of the turbofan 11. There are even memories and comments published by "Russian technicians", as well as detailed technical data of the engine. Chang Haonan was stunned for a moment. ??If none of the punctuation marks, including the model name, chief engineer''s identity, R&D unit and important time nodes, were correct, he would even think that someone in the R&D team had leaked the secret. Obviously, this author does not have any inside sources. ??But being able to write such a thing eloquently under purely abstract conditions... The literary level is indeed very impressive. Chang Haonan pointed at the magazine with a dumbfounded expression: How can this be said to be true... ?Zhang Liangping, who was sitting on the chair opposite, glanced over and also laughed: Well...the content is not important, its just wild guessing among the people. The main reason is that the public has high expectations and voices for our new engine..." Let me tell you, this magazine was priced at 20 yuan. I increased the price to 50 yuan that day, and then I snatched it from the bookstall owner. Obviously, he had read it before and knew what was written in it. ??Chang Haonan was shocked when he heard this, but for a moment he didnt know what to say, so he had no choice but to shake his head: Its not surprising, its really well written. Thanks to the fact that I designed the Turbofan 10 myself, otherwise I would have believed this literary work Just when Chang Haonan was about to see what outrageous content would follow, the phone on his desk suddenly rang. ?Zhang Liangping quickly stood up and motioned to wait outside first. ?Chang Haonan picked up the phone. ?A slightly unfamiliar voice sounded over there: Mr. Chang, I am Liang Zhuoping from the Aviation Industry Group. ?Chang Haonans old boss in the past. However, there is not much direct contact between the two. After all, Chang Haonan basically had a direct connection with Ding Gaoheng. Later, the two families separated and the intersections became even less. Mr. Liang, hello, hello. Chang Haonan answered while thinking about what the other party could do to him. The news just came from aviation technology, they received a cooperation invitation letter signed by Oliver Weili, the head of Dassault Aviations China region. ?Liang Zhuoping got straight to the point: What Dassault means is that several of their current main models of business jets are designed for the European market, so they hope to cooperate with us to develop a new model that can adapt to the Chinese and North American markets. After the split of the Aviation Industry Corporation of China, China Aviation Technology did not follow the split, but remained affiliated with the Aviation Industry Corporation of China. After all, it seemed at the time that it might take some time for China to export aero engines alone. Even if there is, as long as the business volume is not too large, there is no problem in continuing to use the aviation technology channel. After hearing Liang Zhuopings words, Chang Haonans first reaction was outrageous: Cooperate with us to develop? ?Although China''s current economic level has been growing rapidly, it is still in the stage of "rapid progress is due to a low starting point". At least in 1999, it was still a little too early to enter the high-end market such as business jets. Let alone joint research and development. Business jets are all about tonality. At least in the 1990s, Chang Haonan had to admit that China still lacked convincing power in the high-end market. ? Even if you really need some of the technologies here, such as wing design or active noise reduction, you should still choose the supplier model. ?Liang Zhuoping hesitated for a moment, and then explained: The reason disclosed in the document is that none of their current main models can fly across the Pacific, and there is no way to fly directly from China to Europe. They really need models with longer ranges to compete with Bombardier and Gulfstream. Chang Haonan frowned. Reasonable. But not reasonable enough. And if it is for this reason, it has nothing to do with the Aerospace Power Group. ?Liang Zhuoping paused for a moment and then continued; "However, we have inquired through some private relationships we have established before. It is said that Snecma Group hopes to find an opportunity to conduct technical cooperation with us, um... to be precise, with you, and Dassault only provides a White gloves." Director Ding means, let me ask Mr. Chang for your opinion. (End of this chapter) Chapter 776 Isnt there really a war situation? Chapter 776 Is there really a war situation? As the chief planner and the only member of the leadership team who is also responsible for front-line research and development work, it is normal for such a major foreign cooperation project to be contacted first by Chang Haonan. Snecma, the French state-owned aerospace group. ??Although it sounds like something like "China Aviation Industry Group", in fact, the name Snecma itself is not particularly out of the ordinary. The more well-known ones are CFM, a company jointly established by Snecma and General Electric, and later, the Safran Group formed by merging with Sagem. So when faced with Liang Zhuopings explanation, Chang Haonans first reaction was Didnt react. China has indeed made some progress in aviation development, but the projects that have actually been implemented are limited to one turbofan 10. ?Due to the relatively weak R&D capabilities, even if Chang Haonans previous proposal of using an off-the-shelf turbofan 10 core machine to develop aeroderivative combustion and high bypass ratio engines would have to wait until the final design of the turbofan 10 body is finalized. As for the implementation, we have to wait for a few more years. ?At this time, the French suddenly came to discuss cooperation. Also, when the Turbofan 10 project was approved - not this time, but the early stage of the last project approval, which was almost ten years ago, at that time China was still preparing to turn the Turbofan 10 into an F110 analogue, so it hoped to start from that. Snecma Group, one of the shareholders of CFM Group, has obtained some technical information and technical guidance on the CFM56 core machine. After hanging up the phone, Chang Haonan leaned back on his office chair, rubbing his forehead and thinking. Mr. Chang. "It''s not urgent. I''m just reporting the situation on a routine basis. After a while, a staff member from the aviation engineering department will bring over the other party''s letter and documents." At least set the main tone of the negotiation. The means of concealment are still so crude. After much deliberation, Chang Haonan called Zhang Liangping who was waiting at the door first. Should we actively push forward, or should we focus on wrangling? But by the end of the 1980s, the relationship between China and the Western camp had begun to turn cold, and due to well-known reasons, the relationship between China and France had experienced some twists and turns, so this matter gradually fell into disuse. . Its really hard to figure out what to talk about. Of course, no matter what the opponent wants to do, if the soldiers come to block the water or the soil, contact must still be made. It gives people a sense of dj vu as if holding a pipa and half covering their face. It is still done in this secretive way. I cannot make the decision directly on this matter alone. It needs to be discussed within the group before making a decision. ?According to his memory, before this company became part of the Safran Group in 2005, its exchanges with China should have been limited to the maintenance of CFM series engines widely used in civil aviation aircraft. ?Chang Haonan suddenly discovered that this way of doing Tai Chi is indeed somewhat useful. Chang Haonan is now a person with a formal leadership position. Many things still need to be filed through formal procedures. It is no longer possible to talk directly in Ding Gaoheng''s office like in the past. Furthermore, Chang Haonan directly started a new one. Apart from the name, the current Turbofan 10 is completely different from the previous plan and CFM56, so naturally there is no need to have anything to do with each other. ?Liang Zhuoping on the other side of the phone replied. Just before that, you have to make some mental preparations. ??As a result, Hedong has been in Hedong for thirty years, and Hexi has been in Hexi for thirty years. Now, although it is not clear why, the offense and defense have changed, and it is the opponent''s turn to come to ask for cooperation. Looking at Chang Haonan''s serious expression, the latter understood that he had something to do on his own, so he turned around and closed the door to the room. Lao Zhang, there are a few things you need to do. Please note them down. "You say." Zhang Liangping quickly took out the notebook he carried with him. "Someone from China Aviation Technology will come over in a while and send you a cooperation invitation letter submitted by Dassault Group. You can collect it on your behalf, and then find someone from the External Liaison Office who is relatively experienced, preferably someone Comrades who understand French, make contact with the French, be careful not to express your stance first, and first see what kind of medicine they are selling. " Chang Haonan speaks very quickly, but Zhang Liangping is also an experienced executive and can keep up with the rhythm. Second, look for the news related to Snecma Group in recent months, summarize the substantive content, and send it to my office as soon as possible. "Also, contact the group archives and ask them to sort out the information related to the pre-research of Turbofan 10 and the research and development work at the beginning of the project. It is not technical, but related to external cooperation. Once completed, send it to Me." When Chang Haonan said the last part, Zhang Liangping raised his head in shock and looked at the former. ?Obviously, the fact that the chief designer of Turbofan 10 asked him for the archive information of Turbofan 10 made his brain a little confused for a while. Oh...not the turbofan 10 we are developing now. Chang Haonan explained. ? As a purely administrative staff member, Zhang Liangping was probably just a junior clerk who had just entered the company 10 years ago, and he may not even have worked in the aviation system. It is normal for him to be unable to react to these things for a while. Its the Turbofan 10 that was the last project that was launched before I took over. Anyway, if you told the file that it would be built between 1985 and 1995, they must know whats going on. Before Chang Haonan, Zhang En and Mr. Zhang were in charge of the research and development of the turbofan 10. They are currently responsible for the development of subsequent upgraded models of the QD130 gas turbine at the 606 Institute. However, the latter actually took over halfway and may not be aware of the earlier things. Another phone call to find the person involved, it would be better to just dig through the files from the pile of old papers. "yes!" Zhang Liangping replied. But instead of closing the notebook and leaving immediately, he changed the subject: "Mr. Chang, the last two things are easy to talk about. I can do it after I go back. But after our group was split, the External Liaison Office is almost a shelf. Except for the director and deputy director, there are only those from Haojing Engine Group. Among the few comrades who are seconded here, as for those who can speak French... I''m afraid I can''t find them..." Under Chang Haonan''s deliberate promotion, Haojing has gradually become a window for foreign cooperation with China Aviation Development and even the entire aviation industry. Haojing Group has successively undertaken the production of SPEI MK202, D436T and M250 small turboshaft/turboprop engines. The three localization projects are the only ones in the aviation development system that have experience in this area. Therefore, when setting up the External Liaison Office, a few people were recruited from them. ?The introduction of the Ahaye engine back then was led by the Bingcheng Aircraft Industry Group together with the Z-9 project, and is now not part of the aviation engine system. The head office is divided into two according to business, and some pains are definitely unavoidable. Chang Haonan thought for a moment: Then Ill first find someone with experience in negotiation to avoid being tricked by the other partys trap at the negotiation table. Then Ill contact Director Ding and find some people from the External Liaison Department. ?If other people said this, they probably wouldnt dare to confirm it. But Chang Haonan''s connections at the Science and Technology Commission are relatively strong, and it''s just a matter of borrowing a few people. ?After sending Zhang Liangping away, Chang Haonan breathed a long sigh of relief and turned his attention again to the newspapers and periodicals on his desk that he had not yet finished reading. There is still some time before lunch, so I might as well pass the time. ?However, the stamina of the previous magazine was so great that Chang Haonan was worried that if he looked at it a few more times, he might doubt whether the Turbofan 10 was designed by himself. ?So, he simply pulled out an English newspaper from underneath. Chang Haonans English level is not very high, but he has memorized a lot for the exams. Reading some ordinary English articles is no problem. Then he saw According to our investigation, in the mid-1980s, China launched a third-generation engine project code-named ''Taihang''. After an initial period of confusion and fumbling, they set their sights on the F110, which had just been equipped with the F15 fighter jet at that time. A few years later, China obtained part of the technical data of the CFM56 core engine through the Snecma Group, and developed their own high-thrust turbofan engine on this basis. Therefore, it is speculated that the performance should be the same as that of the F110GE100 (the earliest model) Comparable or slightly weaker Its really amazing Chang Haonan put down the newspaper and sighed: There cant really be a strategic deception bureau ?Of course, complaints are complaints, but the author of this report is not a pure layman like the picture album magazine just now. But a senior commentator at Jane''s Defense Weekly and a former senior engineer at General Electric Company. In other words, he can at least represent the views of some people in Europe and the United States on turbofan 10 It is also a sibling of the F110 engine. This also provided Chang Haonan with a brand new idea. (End of this chapter) Chapter 777 Sow melons and reap beans Chapter 777: Sow melons and reap beans ? ?These rumors about the source of the turbofan 10 technology, if they are only circulated in China, will essentially not exceed the concept and influence of a small essay. But if foreign reports, and serious reports, are involved, it would not be a bad thing. In fact, for an engine that may soon enter the mass production and service stage, it is impossible for basic information such as structural design to remain unknown for a long time. After all, you have to issue maintenance manuals and other technical materials to grassroots units, and once these things arrive at the grassroots level, it will be impossible to prevent them from leaking as time goes by. ??The reason why the outside world''s perception of the Turbofan 10 is so skewed is mainly because Chang Haonan''s movements are too fast. From the determination of the design plan, to subsystem design, to component-level testing, bench testing, and now installation testing, it was all completed in one go in less than three years. Especially the large-scale installation tests, even concentrated in the half year from the beginning of 1999 to the present. Furthermore, from design to testing, everything is done in one go, with no rework process at all, which reduces the number of insiders to a minimum. In other words, those who have seen what Taihang looks like may not even have time to take their annual leave, let alone retired or retired. The entire project operates almost in a semi-closed environment. ?Thinking of this, Chang Haonan picked up the phone again and dialed the internal number of Zhang Liangping''s office... The task he assigned to Zhang Liangping obviously could not be completed within a day or two. Therefore, after dealing with this small emergency, Chang Haonan returned to school as planned and began to develop a specific manifold learning algorithm. . The Turbofan 10 has only been three years old and there is no new news. Under normal circumstances, no one would think about tearing it down and starting over. Now that new engines are coming out, unreliable ones are naturally pure guesses, and even if they are reliable, they are completely guessing. Analysts can only shoot arrows first and then draw targets based on the only clue CFM56. Its just not clear yet whether the other party wants to investigate the technical leakage or has some other purpose... ?Furthermore, the fact that the French approached the Aerospace Power Group for cooperation at this sensitive time point is highly likely to be related to this. After all, CFM Group was jointly established by Snecma and General Electric. Compared with the purely theoretical paper he previously submitted to the Annual Journal of Mathematics, this is the direction he focuses on. But if it comes to turbofan 10 specifically, we can take advantage of this information gap But no one can reproduce it exactly as it is. ?Even if the matter is settled in the end, or the actual situation of Turbofan 10 is exposed in a few years, it will still have the effect of destroying the internal relations between the opponents. The chances of leaking secrets will naturally be reduced. ?Of course, from a technical point of view, general information such as the overall design plan is actually not that important. ?For example, any ground handler who handles Boeing aircraft will know the overall design of the CFM56. Since foreigners think that our model is developed from the CFM56 core machine, and their analysis is clear and logical, then we will follow them. At the end of the day, if it were so simple to build an aircraft engine, then the aircraft engine would no longer need to be the crown jewel of the industry. ?This way, at least there will be a round of werewolf killings within the Western camp. If the Chinese people play CFM56 so smoothly, it must be because we have a traitor and sold the relevant technical information. For the outside world, they are also accustomed to the research and development cycle of aircraft engines that often takes ten years or even longer. ??Neither directly admits nor directly denies it. When asked, it implies three consecutive words: Everyone understands it, no need to explain too much, just take a closer look. Even the engines themselves are sold all over the world along with the passenger planes, and you can dismantle them and study them if you want. Before the National Day, Chang Haonan had sorted out two basic algorithm ideas, and Yao Mengna and he each chose one to continue researching. Although the results he conceived on the spot may not be the optimal solution in one step, they are at least representative enough. ??The first category is a global idea, which maps adjacent points on the manifold to adjacent points in low-dimensional space during dimensionality reduction, while ensuring that distant points on the manifold are mapped to distant points in low-dimensional space. The second type is a local idea, which only needs to ensure that close points on the manifold are mapped to adjacent points in the low-dimensional space. In comparison, the former is more intuitive (of course only relatively intuitive), but the computational complexity is very high, which poses certain challenges to both hardware level and algorithm design. The local idea is more abstract, and the correspondence between distant points is not clear, but the calculation amount is relatively small, and it seems to be more suitable for the current computer performance. This time, it was Yao Mengna who took the initiative to find Chang Haonan a few days later. ?However, it is not because the former has constructed the algorithm according to the overall idea. In other words, we did come up with an algorithm, but found that we had reached a dead end. Mr. Chang, I used the constructed isometric mapping algorithm to perform data point generation optimization tests on the two-dimensional manifold [t, s, X] in the three-dimensional space. ?Yao Mengna put a few pieces of paper on Chang Haonan''s table: For the complete surface, the efficiency of the algorithm is quite good, and the generation coordinates of the complete S-surface are basically restored. But if I dig out a square area with a length and width of on the two-dimensional manifold, which is equivalent to opening a hole on the surface, which is a very common situation in practical applications, then the generated coordinates will be distorted. , causing the area of ??the cavity to become larger and become an approximately elliptical area..." Simply put, it is not easy to use. The existence of holes in the manifold means that the subset of Euclidean space equidistant from the manifold is non-convex, and the deviation produced when calculating the shortest path between sample points on the manifold increases..." ??This problem discovered by Yao Mengna is also an area that has not yet been studied by Chang Haonan. Fortunately, the overall idea is relatively intuitive, so he can analyze it on the spot. In other words, if you want to use the isometric mapping algorithm, or to expand it, use the global algorithm, then the manifold object must satisfy the conditions of being isometric to a subset of the Euclidean space and the subset being convex. ?Chang Haonan lightly paused the ballpoint pen in his hand and finally concluded. ?The algorithm itself was optimized and revised little by little by Yao Mengna, so she followed Chang Haonan''s ideas this time. "so" Yao Mengna looked troubled: You knew before that this road was dead? Ahemthats not the case. Chang Haonan immediately denied: I just thought of it after listening to your explanation... Actually, I have been studying how to improve the local linear embedding algorithm (LLE) during this time. He opened his computer as he spoke, then took out a piece of paper and laid it next to the keyboard: The biggest problem with LLE is that the local weights it uses cannot fully reflect the local geometric structure of the high-dimensional manifold. Therefore, for singular or nearly singular systems, a positive number needs to be artificially added, but the selection of It greatly interferes with the results..." ?Oddly enough, after writing that paper, Chang Haonan found that his way of thinking seemed to be somewhat different from the past. Specifically, it became more coherent and smooth. After half an hour of introduction, not only did he not get stuck at all, but even Yao Mengna, who was listening next to him, didnt feel that there was much that he didnt understand. "so." ?Chang Haonan put the pen aside and said in a determined tone: Obviously, using multiple sets of linearly independent weight vectors to construct a local linear structure can improve the final embedding result. Yao Mengna was silent for a while, then nodded: "Indeed it is." The two of them continued to fall into silence. Speaking of which, we first started studying manifold learning to...solve the problem of automated inspection of pulsating production lines? It was Yao Mengna who broke the silence again. "Um" Chang Haonan nodded: However, the content of our current research cannot be directly applied to your topic. ? Manifold learning is just a process of data dimensionality reduction, which at best solves one of the many obstacles on the road to automated production. Hearing this judgment, Yao Mengna sighed: Sure enough, my idea may still be a bit too radical... ?That''s really radical. ?If her plan is fully realized, Factory 112 can directly withdraw its workers and turn it into a black light factory. ?However, Chang Haonan immediately changed the subject: However, this improved LLE algorithm can play a role in other fields. It belongs to the willows planted unintentionally and the willows will form shade. "for example?" Yao Mengna frowned slightly and looked at the dense formulas on the paper in front of her. For exampleinformation retrieval, data screening ?Halfway through, Chang Haonan realized that these did not seem to be specific "applications", but could only be regarded as application-level technologies. ?So I thought about it for a while: "If we want to move closer to specific production links...probably...equipment status monitoring and automatic fault diagnosis?" In fact, if this algorithm is extended, it should still be able to shine in many fields. Its just that Chang Haonan could only think of his old profession for a while For example, an airplane breaks down. In the past, ground crews could only carry out investigation slowly. If the aircraft has enough sensors and can effectively screen and analyze the data fed back by the sensors, then the aircraft''s avionics system will determine the specific location and circumstances of the fault. Even, when the failure is just a clue, it is nipped in the cradle. Its just that there are some difficulties to overcome in operation. ?For example, current sensors are relatively large, and it is difficult to fit a sufficient number into an aircraft. ??But in any case, this is obviously a technology with considerable potential. (End of this chapter) Chapter 778 Help France create Rafale? Chapter 778: Help France create gusts of wind? ?After the algorithm development work on manifold learning came to an end, Chang Haonan received two messages almost at the same time. The first one comes from New Jersey on the other side of the ocean. The review results of "Annals of Mathematics" are out Publish directly without modification. According to the reviewers'' comments, although the paper still has room for improvement in terms of writing habits and wording, attention should not be paid compared to the impact its content may have on differential geometry, and even the entire mathematical community. Too much focus on these meaningless details. Therefore, the editorial board decided to publish this paper in the next issue, the 12th issue of the Annual Journal of Mathematics in 1999, and make it the back cover of the current issue of the magazine. The final result is expected. ?However, it was a surprise that it went so smoothly that it didnt even require minor repairs. After all, this was his first foray into the field of theoretical mathematics in his two lifetimes. ?Of course, receiving this email only means that the paper has been accepted. In the world of mathematics, there are still a lot of weirdos. As for the second matter, the matter that Chang Haonan assigned Zhang Liangping to handle has already come to fruition. Its just that the name Chang Haonan has obviously gained some status in the mathematics community because of this article. Invite Chang Haonan to attend an annual mathematics conference held in Princeton at the end of December 1999. In other words, the Annual Journal of Mathematics is still keeping up with the times and will release electronic versions simultaneously. ?However, Chang Haonan did not reply and refused. Even if you are traveling within the country, you must make your itinerary and security plans in advance. It is impossible to go abroad if it is not necessary. ??Princeton Universitys status in the mathematics community does not need to be mentioned much, and being invited by the editorial board of the Annual Mathematics can be regarded as an honor. But Chang Haonans identity is complicated and special after all. ??If it had been placed in the past, or in other journals, you would have had to wait for the physical book to be mailed across the ocean. After all, although there are many Chinese mathematicians, mathematicians of Chinese nationality who have made achievements in Chinese research institutions have not appeared for some years. ??He doesnt respond to emails or attend meetings, and is likely to be regarded as an eccentric genius like Perelman. Hence, the impact of this article should have to wait for another stage to be manifested. Because, along with the review results, there was also an invitation letter signed by Mikael Lagerstedt, senior editor of the editorial department of the Annals of Mathematics. ??If Chang Haonan was just a simple mathematician, it would not be a bad idea to live in the world for a long time. ?In this era, there are no such things as online publishing or early publication. If you want to see the paper, you have to wait until the magazine is officially published in November. ?Its just that ? ?Annals of Mathematics and Princeton still have to give some face. But if the straight ball is rejected, it will become more rigid. In the group meeting room. Seven members of the leadership team, including Chang Haonan, sat on both sides of the conference table. Since the formal establishment of the Aerospace Power Group, this is the first time that such a complete lineup has been held at a meeting. Comrades. ?Zhu Linyu, who was sitting in the first place, spoke first: This meeting is convened for everyone. In addition to summarizing the work of each group in the past few months since the group was established, it is also to discuss the cooperation between us and the French Snecma Group. Zhu Linyu is the leader of the group after all. ?Whether Chang Haonan asks someone to investigate or has someone contact the French side, although it is within his own scope of authority, he must report it to him. Including this meeting, Chang Haonan suggested that Zhu Linyu organize it two days ago after receiving the survey results from Zhang Liangping. Therefore, although the latter did not know the specific details, he had already known that Snecma came to ask for cooperation. But the other five people looked at each other in shock after hearing this, obviously a little surprised. ?However, no one interrupted the leader on this occasion. They just waited quietly for the next step. Comrade Haonan, please introduce the specific situation. ?Zhu Linyus voice drew everyones attention to Chang Haonan. "good." ?Chang Haonan took out the materials he had prepared long ago from his briefcase. "The cause of this incident is that about half a month ago, China Aerospace Technology Group received a cooperation invitation letter from Dassault Group China Region, hoping to work with China Aviation Industry Group to develop a longer range aircraft. Business jets, and we, as well as Snecma Group, are also on the list of partners. Of course, this thing sounds a bit strange. After all, the demand for business jets in our country is still in single digits. Even if Dassault has laid out the blue ocean market in advance, there is no need to make such a big move. "So, I first sent a few experienced comrades to make tentative contacts with the other party to see what kind of medicine they were selling." "Then I soon discovered that business jet cooperation was just a not-so-smart idea. Under the guise, the French have been making insidious inquiries about our understanding of the CFM56 core machine throughout the entire negotiation process. Speaking of this, Chang Haonan placed a piece of paper on the projector''s shelf. It is a meeting minutes. CFM56? ?Lin Zuoming looked at Chang Haonan blankly: It seems that our group does not have a model based on this core machine? Indeed not. The latter smiled: But the French dont necessarily think so. Chang Haonan said and replaced it with another piece of paper. ??Its the English newspaper I read before: Currently, the Wests understanding of the turbofan 10 engine is still at the state before we re-initiated the project, which is the state of benchmarking the F110GE100 engine, so it is natural to think that it was developed based on the CFM56 core engine. Hearing this, the other people showed expressions of laughter. It seems that we, Mr. Chang, moved too fast and caught others off guard... ?Zhu Linyu joked with a smile. The meeting room was suddenly filled with a happy atmosphere. ?However, after all, the main topic has not been finished yet, so the serious atmosphere was quickly restored. If I remember correctly, CFM56 should be jointly developed by Snecma Group and General Electric. Deng Shiyou, one of the deputy general managers, said: Do the French want to find evidence to hold us accountable for infringement of intellectual property rights? Thats what Im going to say next. ?Chang Haonan took out another English report and put it on the projector. Just looking at the date, it should be from the newspaper in the first half of this year: "Because the other party has not made a clear position yet, the following are all my current speculations." ?Even though he said this, several other people still pricked up their ears. "In the first half of the year, actually after the Balkan crisis ended, probably in retaliation for the French being the first to announce their separation from the Allies, General Electric announced that it would launch a compliance investigation into France''s new generation military engine project, although it has not yet given an explanation. The official investigation results, but judging from the follow-up actions, it is equivalent to suspending technical support for the M88 turbofan engine currently under development by France and planned to be used in Rafale fighter jets. "It should be emphasized here that the property rights of CFM56 belong to CFM International, a company jointly established by Snecma and General Electric, while M88 is a model independently developed by Snecma. After General Electric withdrew its support, France should be in trouble Unsolvable technical problems have led to obstacles in the mass production of engines, including Rafale fighter jets. In fact, the core machine of the M88 is not completely equivalent to the CFM56. In theory, it is "self-developed in France", but a considerable part of the design refers to the two classic models F404 and F110, and even some parts are simply universal. "so" ?Lin Zuoming felt that he seemed to understand, but he also felt that the plot was a bit magical, so he hesitated for a while before continuing: The French used their own core machine but were stuck by the Americans. At this time, when they saw the normal installation of turbofan 10, they thought we had a unique understanding of CFM56, so we wanted to seek technical assistance? There is quite a Indescribable beauty. At least, this is the most likely explanation. ?Chang Haonan nodded. ?Of course he wont stick to his words, but everyone knows that they are basically inseparable. For a while, the conference room fell into silence. ?No one knows what to say. With emotion, that is, with great emotion. Especially old comrades like Zhu Linyu also know that we tried to find Snecma for technical guidance in the late 1980s. As a result, ten years later, the identities of teachers and students have undergone a 180 change. You ignored me in the past, but I am now... Ahem. So Mr. Chang, can we...really be able to give the French the help they need in terms of turbofan engines? Finally, Lin Zuoming broke the silence: After all, turbofan 10 actually has nothing to do with CFM56 ?Chang Haonan organized the language a little: "Technically speaking, the core machine of Turbofan 10 is one generation ahead of CFM56, so although we have not studied CFM56 in depth, it is difficult to provide them with an immediate solution as the French hope, but if we really cooperate, , help them improve the M88, and at least let the Rafale fighter jets go into mass production first, there will be no problem. " Of course, we have to wait until the design of Turbofan 10 is at least finalized, otherwise we dont have that many manpower. (End of this chapter) Chapter 779 First, let’s build the reputation of China Airlines Chapter 779: First, let China Airlines lose its reputation. ?In terms of technology, as long as Chang Haonan speaks, it is basically the final word. ?However, for the newly established Aerospace Power Group, external cooperation, especially in the form of technology export, is still a new thing. ?Although Chang Haonan has promoted projects such as NH90 before, at that time he was only making suggestions, and the comrades of Bingcheng Aircraft Industry Group were actually responsible for implementation. As for the other people There is even less experience in this area. ? ? China''s ability to engage in reciprocal technological exchanges with Europe started with the MA-60. It has taken less than four years to now, and there are only a few signature projects. So, everyone still thinks about it a lot. Comrade Haonan, when our group was established, didnt we set three key development directions? Deng Shiyou said: After the end of Turbofan 10, the original plan was to shift the focus to the pre-research and project establishment work of those three models. If an international cooperation project is suddenly added, will it affect our originally planned timetable? The M88 happened to be a model that was forced to dance with shackles due to lack of design experience. Its just that Snecma has been focusing on single-rotor engines in the past, and now it suddenly makes a dual-rotor model. It lacks experience and has created such a mess. If it is just improved to a usable state, it will not be too difficult. "Exactly, we have always said that the Turbofan 10 is a major training for our group. After the training is over, there will always be several assessments or exercises before the next actual combat. For the M88 project, it can Think of it as a big test to see how good our technical staff are! Furthermore, CFM56 itself also has some common problems. However, after a round of research, I found that using other people''s core opportunities to lock up the ideas and upper limits will not give full play to its advantages in design, and China''s production and manufacturing level is still inferior to that of the United States in this era. There is a certain gap, which is equivalent to only being able to create a youth version of the F110 in the end. ?This concern is quite reasonable. The first test model, M88-1, even dared to indicate a thrust of 8.3 tons at sea level (equivalent to a thrust-to-weight ratio of 10). In the end, it was found that the lifespan and reliability exploded at the same time. It must not be installed in mass-produced machines, resulting in the failure of the first few aircraft. The Rafale prototype can only be equipped with the F404 top for a period of time. At the beginning, the French, who thought they had obtained GE technology, were quite confident. ??If you make repairs on the basis of CFM56, it is equivalent to dancing with shackles, it is better to start from scratch. But the reason why Chang Haonan dared to be so sure was mainly because the early M88 had too many problems. It had the same level as the turbofan 10, and even a slightly higher temperature in front of the turbine, but it could only exchange for 7.5 tons of thrust and The thrust-to-weight ratio of 8.5 is completely hampered by the design. In fact, before planning to take over the Turbofan 10 project that year, Chang Haonan specifically considered continuing to use the CFM56 core machine and developing a plan with lower risks and difficulties. It may not be a good thing to have a stall that is too big. Thats why the current 3.75 generation turbofan 10 is available. However, after the sudden loss of technology sources, this engine, which was already at the end of its research and development cycle, still encountered a series of problems. For a newly established enterprise, sometimes there is just a layer of window paper between "bold exploration" and "blind expansion". The M88-2 currently being tested and planned for installation should increase the temperature in front of the turbine and reduce the thrust to 7.5 tons. ?However, Chang Haonan immediately waved his hand: Of course, if we talk about processing and manufacturing technology alone, even after two years of improvement, China is barely able to compare with old European industrial countries like France. I am relatively familiar with CFM56, and I have also learned about the general situation of M88. The potential is actually very high. For example, the gap between the high-pressure turbine rear shaft outer ring grate ring and the second grate ring is too large, which can easily cause the grate teeth to crack, and the original steel wire damper cannot inhibit the crack expansion, causing this part to have a negative impact on the work. The environmental tolerance is extremely poor, and seal failure or even breakage may easily occur. ?Just a few modifications to these questions are enough to confuse the French. ?Of course, if you want to unlock the potential further, thats fine too.? ? ? means you have to add money. There is one more question, Comrade Haonan. After a moment of silence, Chief Accountant Wen Kangjian, who had not spoken just now, pushed up his glasses and asked Chang Haonan: Is it possible that the French came to us to ask for cooperation this time just to show off to the Americans and use this matter as a bargaining chip to force General Electric to turn around? After all, although there are some conflicts between the United States and France, they are still NATO countries after all. Can they really trust us to directly participate in the research and development of air force main battle equipment? Wen Kangjians words may be something that anyone would have thought of twenty years later, but in 1999, they were still quite insightful. ?Several other people also looked at each other and quickly realized that what he said made sense. This possibility cannot be ruled out. Chang Haonan pondered for a moment and replied: In other words, I guess the French are most likely prepared. If the Americans can change their minds, that would be better. If they refuse to look back, they will consider asking us for help. This is using us as weapons... Deng Shiyou frowned. I think this is not necessarily a bad thing for us. Before Chang Haonan could speak, Lin Zuoming unexpectedly expressed his position before him: I think everyone is well aware of General Electrics status and reputation in the field of aerospace engines. Even if the cooperation fails in the end, as an emerging force, we can be used by the French as a bargaining chip against General Electric, and we are successful. No matter how you look at it, it is equivalent to advertising for us. ?Lao Lin may not be a technical expert, but he still has some sensitivity in running a business. Yes, thats my opinion too. ?Chang Haonan immediately expressed his support: At this stage, as long as we can improve our aviation power reputation, we can only make profits but not lose money. Of course, it would be best if the cooperation finally comes to fruition. The whole world will know that we have cleaned up the mess after GE gave up the project..." Some things can be viewed from different angles and lead to different conclusions. ??After Lin Zuoming and Chang Haonan''s analysis, everyone suddenly felt that being used as a gunman was not so difficult to accept - Can I eat with GE at a table, how many people want to be the door without the door ... ?Zhu Linyu''s eyes swept half a circle in front of him. Seeing that everyone seemed to have no other questions, he opened his mouth and said: In this case, I agree that we should actively promote this cooperation with Snecma and Dassault. After speaking, he gently raised his right hand to indicate a vote. After all, it is a leadership team meeting. Even if no one expressed opposition just now, the decision-making process still has to go ahead. ?Six other people also raised their hands to express their agreement. Passed unanimously. Zhu Linyu nodded, then lowered his head and made a simple note in his notebook, and then continued: Then this will be regarded as the unanimous opinion of our entire group and reported to the Commission of Science, Technology and Industry for National Defense, and then we will prepare to officially start negotiations! (End of this chapter) Chapter 780 The unexpected effects of strategic deception Chapter 780 The Unexpected Effects of Strategic Deception After setting the tone of agreeing to cooperate, the next thing that remains is to determine some basic principles. After all, this time it was directly handled by the Aviation Power Group. ?It is easy to come up with an idea, but there is still quite a lot of work involved in implementing the idea. Although the French''s purpose may only be to save the General Motors Group, it is still possible to achieve cooperation, and the best preparations must be made. ??Moreover, this kind of tug-of-war can also be an opportunity to train the Aerospace Power Groups own negotiating team. ?Looking at the current situation, I am afraid that future external exchanges and cooperation will be indispensable. Chang Haonan cannot be asked to borrow people from the Science and Technology Commission every time. "Now that we are ready to cooperate, we need to determine the conditions proposed by us. Is it joint research and development, or is it simply a supplier of solutions, paying with one hand and delivering the goods? I would like to hear your thoughts. " ? Zhu Linyu has been in charge of the work related to the military-to-civilian conversion of the former Aviation Industry Corporation in the past few years, but he still has some understanding of those foreign cooperation projects, especially the aviation safety cooperation that has been promoted as a benchmark by the Corporation. ?Now that it is my turn to take charge of the overall situation, I must start by copying the gourd and drawing the scoop. It is still very attractive for China to increase its voice in the international arms sales market. As the chief accountant, Wen Kangjian is not from the aviation industry system, but he was already a member of the preparatory committee before the group was formally established, so he has some understanding of some situations at the head office. Following that, Wen Kangjian asked very cautiously. ?One advantage of joint research and development is that every time an order is made for the M88 or the Rafale fighter jet, the Aerodynamics Group will get a profit from it. Chang Haonan nodded: "In fact, the entire Project 11, although generally speaking, my country is introducing the R&D and manufacturing technology of the Su-27, there are also parts where the two sides have technical exchanges, such as the J-11B prototype that is being manufactured, and the airframe structure upgrade is made by 601 Institute and Sukhoi Group jointly completed. ?Of course, his question was not so much about brainstorming as it was about seeking Chang Haonan''s opinion. Of course the other people also understood the implication, so they had no intention of speaking. Instead, they turned their attention to Chang Haonan almost at the same time. This is another advantage of collaborative R&D. Hence, several other people also pricked up their ears. Project No. 11 is not a business of the Aerospace Power Group, and the former is not directly involved in theory, but it undoubtedly plays an important role in it. The latter also knew that now was not the time to be humble, so after a little thought, he spoke: Comrade Haonan, I heard that you have promoted cooperation with the Russians in the form of technology exchange in Shengjing before? Cooperative research and development means that we have a say in products, of course in weapons and equipment, mainly in the export of products. Chang Haonan continued: Judging from the current situation, because the progress of Turbofan 10 is relatively smooth, the trust given to us by our superiors, and of course the funding, is relatively sufficient, so we dont have to rush to make quick money, we should try our best to make money in the future. through joint research and development. Its just hard to ask too directly. Yes, it is carried out within the framework of Project No. 11. Just like the Project 11 mentioned by Comrade Kang Jian just now, models using two-stage upgraded airframes, such as Su-27SMK and Su-27UBMK, must obtain the consent of both parties before they can be exported. After Komsomolsks improved model completed its first flight in the first half of the year, several countries immediately proposed the idea of ??purchasing the improved model, but in the end, only Algeria and Ethiopia signed it because it triggered the restrictive clause we had signed with Russia. Purchase orders for SMK models, while Annan can only purchase models using older airframes..." Compared to a one-time deal, it is obviously more profitable to make a steady flow of money. ?Although Chang Haonan is the youngest, he probably has more project experience than everyone else here combined. "Then...can we also learn from the ideas of Project 11 and exchange some technologies that we or other brother units urgently need?" Is this... ?Chang Haonan did not respond immediately, but lowered his head and thought for a while: "The French do have a lot of the technology we need, but Dassault and Snecma may not, especially since we have already determined the development direction in both aircraft and engines, and it is impossible to continue to follow the French path. Moreover, technology exchange-type cooperation also involves deep issues of mutual trust. "Mutual trust... They have already asked us to help build the engine, so why are we talking about trust or not..." "It is not mutual trust between them and us." Chang Haonan waved his hand and explained: "It is their internal mutual trust. The entire Rafale project involves not only Dassault and Snecma, but also Thales, Sagem, and Explosives Group. Relatively speaking, we are more interested in Thales. "Zi''s optoelectronic equipment, as well as technologies such as smokeless propellants from Explosives Group Company." "We were able to cooperate with the Russians in the form of technology exchange before because we have the Commission of Science, Technology and Industry for National Defense here, and they also have a defense arms export company that can integrate most of the military business. But this time we are working with the French In business, how could Thales contribute its own technology to help Snecma solve the problem? " Although the companies mentioned above are all French state-owned enterprises, there is still no direct benchmarking between French state-owned enterprises and Chinese state-owned enterprises. ??On the Chinese side, Dianke Group exchanged its own technology for the technology needed by the Aviation Industry Group, and then the gains and losses of both parties could be smoothed out through an internal settlement mechanism under the coordination of the Science and Industry Committee. ??Without such a platform and mechanism, extremely complex multi-party rights transfer contracts would have to be signed, and it would be normal for the relevant wrangling to last more than ten years. at the same time. The Chinese people suddenly developed a third-generation high-thrust turbofan engine is a big news in both the aviation and military circles. Hence, it is natural that the French cannot be the only ones paying attention to this. At least, Brad Butler and Zhou Ruifu, who were at the military parade that day, soon discovered the clues after developing the photos. Of course, as military attachs, they are responsible for the task of collecting open source intelligence. They cannot just guess and submit the analysis to a written report. ??However, the prerequisite for open source intelligence collection is that there must be open source intelligence. I only have a few photos at hand now, and they were taken during the flight. Obviously, I cant analyze them clearly. They can only learn from the conclusions of their peers. "Brigadier General, it seems that many commentators in the country believe that this new model of engine may be developed on the basis of the CFM56 core engine. It is said that about ten years ago, China had obtained the CFM56 through the relationship with the French. Relevant technical information, and then based on the F110GE100 engine, we came up with this benchmark model. " ???Bride placed several newspapers in front of Zhou Ruifu, and then said. Including the one that Chang Haonan had seen before. Of course, there will be follow-up and more detailed reports. Its just that the first article seemed to set a tone for this matter, causing at least 70% of Western media to tend to analyze it on the basis of it. ?Of course, this is also in line with the mindset of this era. After all, after the J-10 made its first flight, many media claimed that it was a copycat of the Davidian Lion fighter. ?However, Zhou Ruifu is an Air Force Brigadier General and a half-aviation expert. He simply sneered at this statement: "I read the article in Jane''s Defense Weekly half a month ago. Although it is very reasonable, I know the author. He left General Electric about six or seven years ago. He wrote this just to give himself That ''former senior engineer at General Electric'' status is just a bonus." "Furthermore, the French themselves don''t understand CFM56. Even if the Chinese do get the technical information from them, it will be incomplete and may even contain errors. How can they come up with the benchmark F110 engine so quickly? After the finished product is released, do you still dare to show it at an occasion like the National Day military parade? ?This analysis was obviously very convincing, and Bradbury was convinced on the spot. Then you think it might be I saw an analysis from China these days. ??Zhou Ruifu said: The author is a Chinese and is very familiar with the process of Chinas domestic production of Su-27. He has written many details that are impossible for outsiders to understand. He should be, or at least have been, an insider who has been exposed to related work. Obviously, he was talking about that unbelievable little essay. Because the content was so vivid, Zhou Ruifu had hundreds of millions of misjudgments about the authors identity: "His statement is that while China introduced the Su-27 production line, it also introduced AL31F technology from the Russians, but it did not directly produce the original version, but made certain upgrades on the basis of the AL31F to adapt to The Chinese Air Force and the Russian Army have different operational needs. "Considering China''s confidentiality regulations, this may not be the whole truth, but I think there must be some real parts in it, at least in a general direction, it should be much more reliable than the article in Jane''s Defense Weekly... " (End of this chapter) Chapter 781 Get ready to start being a mentor! Chapter 781 Getting ready to be a mentor! ??Although Bai Lid couldn''t find any logical loopholes in Zhou Ruifu''s analysis, he still felt that something was not right. Mr. Brigadier. The latter rubbed his hands a little restlessly: "Although the author of the article you mentioned is Chinese, Jane''s Defense Weekly is a relatively influential media after all..." ?At the end of the 1990s, Jane''s Defense had not yet become completely entertainment-oriented, and the content was still somewhat in-depth. ? ? Military, political and business people in many countries subscribe to it and even post comments on it. ?However, Zhou Ruifu waved his hand: If it is in Europe or the United States, then your statement may be correct, but in China, or in the entire East Asia region, the content of Janes Defense is actually not interesting. Immediately, he opened the drawer, took out a newspaper and a magazine, and placed them on the desk. ?There are many pencil marks on the newspaper, which obviously have been carefully read. Later, the five major head offices were split into groups, so it didnt matter. So, they reported this conjecture of "AL31F improvement theory" as the conclusion of open source intelligence analysis. You also said you have no background? ??But in the view of Zhou Ruifu, a senior US military officer, isn''t this a proper script for "the military-industrial complex sponsors the media and lobbying groups"? ?Originally, this kind of report was just a routine matter. In addition, Zhou Ruifu and Bradbury were both professional soldiers who started their careers halfway, and had neither diplomacy nor intelligence training. ?At the end of the 1980s, in order to satisfy the people''s growing curiosity about military equipment, and of course to generate income during the trough of the military industry, major military industry corporations did register a number of literary publications. Correspondingly, the content quality of publications has also begun to decline. ?No one could have imagined that an article written by a small person based solely on his imagination in order to complete KPIs would eventually have such an indirect and direct impact on international politics. But the good times did not last long. Because the operating methods of the old state-owned enterprises were not flexible enough and the content was professional but not interesting enough, these newspapers and magazines quickly changed from blood transfusion kits to bloodletting troughs. Not only were they unable to provide income, but they also Often living beyond their means. ??And Bai Lideh has not stayed in China as long as Zhou Ruifu, so when he heard the latter say this, he no longer had any doubts. ??Zhou Ruifu said, reaching out and tapping the newspaper lightly: Therefore, by the second half of the 1990s, most of them were entrusted to individuals or professional publishing organizations on a contract basis. ??Furthermore, in the post-Cold War era, military technical intelligence is not something that requires particularly high timeliness. As long as we wait a little longer, more professional intelligence agencies will submit analytical conclusions with higher credibility. In fact, he is completely judging others by himself. In other words, the original name is retained, but in fact it has little to do with the military industrial unit behind it. So much so that a little-known essay compiled by a little-known author in order to complete the KPI eventually changed the entire world''s aviation industry structure... So, the articles that can be published here must be inextricably linked to the financial backers behind them! Some even established their own publishing houses. But this time, the analysis that the two copied directly happened to be stuck at a strange point in time. "On the contrary, this newspaper, and of course the accompanying publications, are not very famous, but I asked someone to check the background and found out that it was actually founded by a Chinese military industry company about ten years ago, and it is still used today. We still maintain financial relationships. So generally, no one takes it seriously. ?Of course, for Chang Haonan, the decision to initiate negotiations has just been made, and the negotiation team has not even been assembled yet, so there is no follow-up at all. After the meeting, we went back to school as usual. For him, the most important thing right now is... Enrollment. ?This enrollment involves two aspects. First, after the National Day, until the beginning of November, graduate students choose their tutors. Second, at roughly the same time, students who have obtained postgraduate exemption qualifications must confirm their supervisor The work of recommending graduate students actually started very early, but these days there is no Xuexin.com and no online archives, so the progress in all aspects will be slower than before Chang Haonan traveled through. Of course, since most schools'' recommendation interviews are just a formality, and the final ranking is basically the grade point average ranking, so before the end of the second semester of their junior year, some students who think they have hope will start to contact their tutors. Just like Chang Haonan himself did back then (although he was proactively contacted by his mentor). ?However, not everyone will do this. Some students who want to be exempted from studying for postgraduate studies at other schools have no basis for doing so. Teachers from other schools cannot determine their professional rankings based on just a transcript. ??Moreover, the contact at this time, no matter what the outcome, can only be regarded as a personal agreement between teacher and student. In principle, both sides can compete. The mentor candidates will not be finalized in the form of files until November. So after the results of the exemption are announced in October, there will be another peak period for contacting tutors In other words, by the time the postgraduate students choose their tutors in March next year, their tutors have already been snatched up twice by their own school and other schools. ?There is still time left... Ahem. Normally speaking, young teachers who have just been promoted to master/doctoral degree can only wait until the next year. But Chang Haonan''s situation is not normal after all. Even if you only look at the parts of his profile that can be made public, you can realize from the densely packed topics and projects that this teacher is anything but simple. On the other hand, such a young full professor is a golden brand in his own right... Professor Chang, these are letters from students that the laboratory received in the past period. I sorted them out and they are all here. After officially joining the job, Chang Haonan finally felt that there was a shortage of manpower. Finally, under the strong suggestion of teacher Yang Huimei, she recruited Liu Chenchen, a counselor who had just graduated from her. ??Its just that Im not in the Torch Group, but as the administrative secretary of the entire laboratory. Put it on my desk first. Chang Haonan was checking his mailbox on the computer at this time. He reached out and pointed to the side, indicating to the other party to put the letter aside. "OK." Liu Chenchen put away a large pile of envelopes and left Chang Haonan''s office with brisk steps. I didnt forget to close the door before I left. ?Chang Haonan took out a letter opener from the pen holder and began to open the letters. Compared with later generations, the usage rate of email at this time was not high. Chang Haonan just looked through his mailbox and found only two emails related to graduate student applications, and both of them said that they had sent the relevant materials by letter. Obviously, sending letters through the post office or human express delivery is still the main means of communication. A student from Beijing Airlines ranks second in his major. He hopes to engage in research and development of flight control. He took a class from Mr. Liu Hongbo and scored 95 points I am also a junior student of Beihang University. I am No. 1 in my major. I hope to engage in research in structural mechanics. I have published a paper during my undergraduate period...uh...Journal of Beihang University..." "Master''s degree from Bingcheng University of Technology, majoring in Mechanical Engineering. My supervisor is Professor Li Zhihong. I participated in the above-mentioned project ''New Principles and New Methods of Digital Precision Machining of High-Performance Complex Surfaces''...hiss...I remember this seems to be one of the Seiko Projects" Project and letters of recommendation Chang Haonan opened and read at the same time. It took him almost an hour and a half to read the contents of dozens of envelopes. ??They are all top academics who have obtained guaranteed postgraduate places. In terms of average grades, there is nothing to choose from. The worst one, the undergraduate major is ranked fifth. Many people even have scientific research experience at the undergraduate level. Although it is unlikely to be the extraordinary experience of Chang Haonan, in this era without projects such as SRTP, it is already quite difficult for undergraduates to enter the laboratory... For the first time, Chang Haonan felt that he had difficulty choosing. ??Professor Li Zhihongs student, if he later confirms with Li Hongzhi himself and finds no problems, he has basically decided to recruit him to study for a Ph.D. Bingcheng University of Technology is, after all, one of the Seven National Defense Colleges. Students from there will have a lot less to do when participating in projects. But the remaining master''s degree spot still made him a little difficult to make a decision. Many tutors would prefer to recruit students from their own school, but Chang Haonan has no such tendency. Then...come for an interview... Chang Haonan selected the five files that he was most satisfied with and gave them to Liu Chenchen, and asked the other party to call them back one by one and invite them to come to Beijing Airlines for an interview. If there are students from other places, travel expenses and accommodation expenses can be reimbursed. (End of this chapter) Chapter 782 Being stepped on by future generations Chapter 782: Being stepped on by future generations ?At this time in 1999, the third major railway speed increase had not yet begun. It often took 40 hours or more to take a train from a slightly farther place to BJ. As for online Its so funny, 128K dedicated line network makes video calls, who knows who uses it. Therefore, interviews can only be arranged on the weekends of this week in a face-to-face format. In addition to Chang Haonan, Yao Mengna will also be with him. On the one hand, it is simply to make a record, and on the other hand, it is also considered that if there are multiple students who really meet the requirements of the laboratory, then the latter will also have a quota for recruiting master''s students. As for Liu Fangping and Lei Zhixing They are currently on a business trip to the Hudong Shipyard, so they regretfully missed this interview. ?But the problem is not big, there is still the time after the year - ?According to Chang Haonans experience in his previous life, students who take the postgraduate entrance examination to study for a masters degree will in many cases develop better than those who take the postgraduate entrance examination. ?This may be because the preparation period for the postgraduate entrance examination allowed them to review mathematics and professional core courses again, so the foundation is stronger. In short, on Saturday morning, Chang Haonan and Yao Mengna arrived early in a classroom specially prepared for them by Tang Lintian Yao Mengna sighed softly: Im used to being interviewed, but this is my first time meeting someone, and I didnt even think about what questions to ask. On the other hand, until the new laboratory located outside the North Fifth Ring Road is built, the Torch Laboratory currently does not have the conditions to completely physically isolate classified projects from non-confidential projects. Chang Haonan suddenly paused while drinking soy milk: My situation is different, so it has no reference value... ?Yao Mengna shook her head, and then looked at Chang Haonan: Speaking of Professor Chang, you...it was only three years ago when you were interviewed, so you should still have some impressions. Why dont you tell me about it and give me some advice? Chang Haonan thought it seemed right, so he gave an idea: Think about what you were asked during your postgraduate interview, and just ask it as it is. ??During Chang Haonan''s interview at the Institute of Insurance, he was not asked any regular questions. Instead, he went up to give a lecture to several big guys sitting below, and then passed... Its been so long ago...it was six years ago. How can I still remember it so clearly..." So unless necessary, it is better to reduce the flow of people there as much as possible. Chang Haonan took a bite of the golden and crispy dough sticks and asked with a smile. ?While waiting for the students to come over, Yao Mengna handed the breakfast she bought to Chang Haonan and said. Professor Chang, to be honest, Im a little nervous. On the one hand, the computing center is now overwhelmed and cannot find any spare room to do this kind of work. ??Although the "examiner" for this interview is Chang Haonan, Yao Mengna certainly can''t just say soy sauce without saying a word. Oh...thats why Im so nervous... Although she has recognized the reality, Yao Mengna still has a rather magical feeling when she thinks that her junior fellow student, who is three years younger than her, has now become the head of the laboratory and a second-level professor. You are interviewing others, but others are not interviewing you. What is there to be nervous about? "I" Soon, it was time for the scheduled interview. The first person to walk into the classroom was the Jinghang student who ranked first in his major. ?The appearance is unremarkable, giving the impression that he is even a little introverted. "Hello, teachers. My name is Li Yabo. I am a senior student in the Aircraft Department of the School of Aeronautical Science and Engineering. My average score in professional courses is 93.7, ranking first in my major. When I was a junior, I assisted Professor Li Guang to complete a project on small straight planes. Research on the structural design of wing drones and published a paper as the first author..." How else to say that people should not be judged by their appearance. Even though he looked a little timid when he first came in, the young man spoke very fluently and looked normal. Apart from his tightly clenched fists, there was no other trace of nervousness at all... Why did you choose the aircraft major during the college entrance examination? Chang Haonan made a surprise attack and didn''t ask about the undergraduate level - in fact, there was nothing to ask. As a student of this school, you can just ask Tang Lintian for all the information. Because when I first started in the second half of my senior year of high school, I saw reports on the joint military exercises of the land, sea and air forces in the southeast. I felt that our countrys equipment was too backward compared with foreign countries, so I wanted to build an airplane! This answer is definitely not a standard answer. But it is very much in line with Chang Haonans wishes. Because the reason why he decided to design a fighter jet in Liu Hongbo''s class was because of the same stimulation. Then...why do you want to study in my new laboratory? The second question is relatively routine. If you are well prepared, there will even be standard answers. ?For example, I have read **** books and **** papers, and I am very interested in your research direction. ?But this Li Yabo is obviously an unconventional person. ?He scratched his head and showed a somewhat embarrassed expression: "Because when I was a freshman, I heard more than one teacher tell you the legend. I didn''t believe it at first, but then I found out that the textbook for the course "Principles and Methods of Numerical Simulation" was written by you, and I thought it was It''s a bit amazing. Just after I got the postgraduate placement, I saw that you stayed at the school to teach, so I wanted to feel how powerful you are..." Yao Mengna almost couldn''t stop hearing this answer, and Chang Haonan next to her also smiled helplessly. ?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? OkayI think youll see it. Yao Mengna nodded beside her, and then asked: When you introduced yourself just now, you mentioned that you published a paper during your undergraduate studies. Should it be the one attached to your previous letter? Li Yabo nodded. How do you solve the aeroelastic instability problem of large aspect ratio straight wings during numerical calculations? Hearing this question, Chang Haonan couldn''t help turning his head and glanced at Yao Mengna This was the first problem he helped each other solve after the two met. Involving the supply of 7-200A, which is now a project to replace the new wings of the MA-60. Chang Haonan also started from that project, which really made Du Yishan see the infinite possibilities in him, so he was chartered to join the 83rd Project. When Yao Mengna asked this question now, she seemed to have a deep memory of what happened back then. Li Yabo also gave the same answer as Chang Haonan: Using the dipole grid method, the large aspect ratio straight wing can be structurally analyzed as a beam wing..." Yao Mengna''s eyes were filled with nostalgia, and she turned her head and glanced at Chang Haonan. ?Then the two people''s eyes met for a moment. Look back to the front at the same time a moment later. Fortunately, Li Yabo was still explaining his method at this time and did not notice anything strange. How did you come up with this idea? Yao Mengna asked again. Because I remember that Teacher Liu Hongbo mentioned this method when he was teaching us ?Li Yabo was honest and did not say that he came up with it independently. Obviously, he is standing on the shoulders of his predecessors. As for Chang Haonan, it happens to be that shoulder... ?Originally, it was almost time for the interview to reach this point, but Yao Mengna said again: If, I mean, if you dont become Professor Changs student, would you be willing to study under the name of another teacher in the same laboratory? Li Yabo''s face flashed with confusion for a moment, but in the end he gave an affirmative answer. At this time, the timer next to him had already made a ticking sound that the countdown was about to end, so Chang Haonan quickly interrupted Yao Mengna, who seemed to still have something to say: Thats it, lets end the interview here. Go back and wait for news. Within a week, we will contact your counselor and inform you of the results. (End of this chapter) Chapter 783 Hudong Shipyard’s trump card Chapter 783 Hudong Shipyards trump card After all the interviews, Chang Haonan finally decided to recruit Li Yabo under his name. Firstly, after confirming the situation with Tang Lintian, we found that the young man was indeed very capable in all aspects. Secondly, he also had a good temper towards Chang Haonan. When it comes to recruiting students, there are nothing more than three points. Talent, ability, character. No problem, the rest is just a matter of eye contact. ?Of course, Yao Mengna was not without gains. In the subsequent interview, she had a very interesting chat with a girl named Wan Chuanqing. The latter majored in theoretical physics at Jinling University. Although he did not publish articles as an undergraduate like Li Yabo, his average score in professional courses was as high as a terrifying 97.3 points. He also won the first prize in the national physics competition and was one step away from entering the International Olympiad training team. Only one step away. Logically speaking, students with such great potential go to a strong science school like Jinling University and usually either go abroad for further studies or continue their graduate studies at the same school. I didnt expect that Therefore, Chang Haonan thought that after a period of "cooling off period", the students'' enthusiasm would subside. Thats why you dont eat minced meat. As long as it is not finalized, you can keep a spare tire. ?His own extremely dazzling experience can certainly attract many people to submit their resumes on impulse. Its a two-way choice. Although there were only five people, the interview lasted almost the whole morning. I initially thought that with a new subject group like ours and new teachers, students would be more worried when making the final decision... ?In addition to these two people, two other students expressed their willingness to join the Torch Laboratory as students of other tutors in the same research group without being recruited by Chang Haonan himself. But as we all know, a good researcher is not necessarily a good mentor. This ratio is quite exaggerated. Chang Haonan, who got up early and rushed to school, stood up and moved his body, making various joints make a crackling sound: However, it turns out not to be. Thats why I want to apply for Beijing Airlines, which has become famous in recent years. ?Out of the five people who came for the interview, four said that as long as they could join Torch Lab, it would be no problem to change their mentor. ?So the needs of the two complemented each other perfectly, and they hit it off. When the two finally made a decision after some discussion, it was already close to lunch time. ?But Wan Chuanqing wanted to switch from science to engineering and enter a direction closer to applicationin fact, this is also the choice of a large number of science majors when they study for graduate school. Chang Haonan kept their resumes and application materials, and planned to let Liu Fangping and Lei Zhixing make their own decision after they returned from a business trip to Shanghai. ?Of course, during the waiting time, these students can still continue to contact other schools and tutors. As a new tutor, Yao Mengna also hopes that she can make some progress in theoretical basics. Yao Mengna also stood up, gathered the scattered information on the table and put it into her bag, and then simply tied her hair into a long ponytail: "Many research groups are worried about having no money or projects, and graduate students cannot graduate with results. It''s a good thing for us. We have a school-enterprise alliance, and at least a few million in scientific research funding is guaranteed every year. In addition, the capital specifically approves the purchase of land and equipment. And special funds for site construction, anyone can see that there will be no shortage of money or resources for at least a few years, and even the academicians research team may not be so arrogant. " Whats more, the school-enterprise alliance means that there are many ways to find employment after graduation. As a teacher, how can you still watch your students starve to death? "With this condition, not to mention just asking them to change their tutors, even if they don''t have a tutor, as long as they can graduate, there are countless people who are willing to come." After Yao Mengna explained it, Chang Haonan thought about it and felt that this was really the case. After all, there are many tutors who only care about recruiting students but not training, and even just leave research topics to students. In other words, even if there is no guidance from a tutor, it will most likely not affect graduation. But if there are no topics and funding, then there is really no hope. Liu Fangping and Lei Zhixing did not keep Chang Haonan waiting for too long. A few days after the interview, the two returned to Beijing Airlines before November. "These are the resumes of the two students I mentioned to you before. Take a look at them carefully when you get back." ?Chang Haonan took out two envelopes from the drawer and placed them on his desk: Teacher Yao and I have conducted interviews a few days ago and found no major problems. If you still want to know anything else, you can call us and ask in detail. Recruiting students was the first time for both of them as older girls to get on the sedan chair, so they were not able to adapt to this change of status for a while, so they just put away the two envelopes with some confusion. Chang Haonan was not in a hurry to urge the two of them to make a decision. After all, keeping these two files was just a casual thing. Even if you miss it, you can wait for the postgraduate entrance examination results to come out and then choose from the students who entered the interview. ?Hence, he changed the topic and went directly to the topic: Tell me about what you learned in Hudong during this period. ?Lei Zhixing and Liu Fangping looked at each other, but the former spoke first: "For the cargo tank using the Gas-Transport storage system, the bulkhead insulation layer is a five-layer structure. From the inside to the outside, it is a 0.7mm Yin steel plate for the main membrane, a main wooden box containing perlite powder with a thickness of about 10cm, and a 0.7mm Yin steel plate for the secondary membrane. Steel plate, a secondary wooden box filled with perlite powder about 15cm thick, and a resin layer about 2-3mm thick. Because there are two layers of Invar steel plates, compared to the Technigaz system where only the innermost layer uses Invar steel, which is the technical route chosen by Samsung Offshore Engineering, the thickness, weight and cost of the entire cabin are lower. To be bigger, this is a limitation of the physical structure and there is no way to improve it. Chang Haonan was thinking about possible solutions while listening to Lei Zhixing''s description. As a metal layer with a very low thickness, the invar steel layer obviously does not have the ability to insulate, but it can bring better air tightness. ? In this way, the performance of the Gas-Transport system and the Technigaz system in terms of transportation dissipation is basically the same. However, the bulkhead of the latter is thinner and lighter. On the premise of transporting the same amount of LNG, the displacement of the ship can be made smaller and the cost is lower. This is a huge advantage for ship owners. The structural strength redundancy brought by the double-layer invar steel of the Gas-Transport system can also be made up for by Samsung Offshore''s more mature shipbuilding technology. At least make up for part of it. This is somewhat similar to a large passenger aircraft. ?In an era when aviation technology was less developed, transoceanic passenger aircraft were required to have four engines to provide sufficient power backup to prevent the aircraft from crashing due to engine failure during flight. However, with the development of aviation technology, twin-engine passenger aircraft were later allowed to fly transoceanic routes. Although the reliability of two engines is still lower than that of four engines, the slight safety gap is no longer enough to make up for the huge cost increase brought by two more engines. Therefore, by the time before Chang Haonan was reborn, wide-body twin-engine airliners like the Airbus A350 and Boeing 787 had almost completely replaced giants like the Boeing 747 and Airbus A380. However, for some aircraft types that require absolute reliability, such as VIP aircraft, nuclear warfare command aircraft, and large tankers, the four-engine platform still has its place. In the field of LNG ship cargo tank technology, the Gas-Transport system is equivalent to a four-engine aircraft, and the Technigaz system is equivalent to a two-engine aircraft. If the former wants to prove the significance of their existence, they must find ways to learn from each others strengths and weaknesses On the one hand, we should try to reduce the cost of use as much as possible, and on the other hand, we should find ways to leverage our own strengths. Thinking of this level, the answer is readily apparent. "My opinion is." After Lei Zhixing introduced the specific situation, Chang Haonan spoke almost immediately: "In any case, the storage container cannot be completely insulated, so evaporation and dissipation of LNG will inevitably occur during transportation. On current LNG ships, this part of the gas is either directly drained or burned. Better yet. Some of it can be recycled into the power system, but the gas consumption of the power system is too small to consume all the boil-off gas (BOG), and a considerable part will still be lost. Then, we can integrate a complete evaporative gas reliquefaction system inside the cargo tank bulkhead system, which can reduce or even completely eliminate evaporation losses during transportation and achieve higher transportation efficiency than the Technigaz system. Of course, the advantages of the Technigaz system in terms of hull specifications and construction costs still exist, but after making some compensation in terms of use costs, we should be able to get at least some guaranteed orders from the GTT Group. Listening to Chang Haonan''s thoughts, Lei Zhixing and Liu Fangping didn''t even know how to answer for a while. After a while, the latter said: Professor Chang, on LNG ships, the bulkheads of the cargo tanks must be included in the overall structural safety design of the entire ship. If you rush to make a fuss here...the risk may not be small..." Chang Haonan just nodded lightly: "Of course there are risks, but Gas-Transport already has excess security redundancy compared to Technigaz, which is equivalent to us converting part of the security that exceeds user needs into economic efficiency. In fact, this is the main reason why Technigaz system currently has an advantage. reason." Since Hudong has already bet on Gas-Transport and has no way to turn around, we can only follow this idea at the moment. (End of this chapter) Chapter 784 The French are screwed Chapter 784 The French...are out of luck After determining the basic response ideas, the development work on boil-off gas reliquefaction technology also began. ?The ones responsible for this task are naturally Lei Zhixing and Liu Fangping. This is also a relatively common way of running a large research group As the big boss, Chang Haonan only provides basic ideas, as well as some key technologies and resources for non-core projects, while other researchers who are more familiar with the situation are responsible for the specific implementation. This ensures that the entire laboratory operates at a relatively high efficiency. Otherwise, if Chang Haonan is asked to do whatever project comes his way, no matter how energetic he is, he will not be able to take care of it. Mr. Chang, after we return, we will contact the comrades in charge of the docking at the Hudong factory and ask them to set up a horizontal topic, and then we will apply for it? Lei Zhixing asked as usual. When he was studying for a Ph.D., he often followed Yan Yongnian in the project application process. Now that he has just changed schools, he is already familiar with the process. "Can." Whats more, the investor is still Torch Group. There is no online fund management system these days, so you can only rely on this traditional method if you want to make money. Thirty thousand yuan, which in 1999 was almost equivalent to the entire cost of a small project. Now we are just doing a feasibility study and preliminary research, and Chang Haonan signed it happily. ?According to the unspoken rules of the school, a portion of the geese must be plucked, which is even higher than the funding for many small projects. ?Chang Haonan didn''t speak, he just put the pen back into the pen holder, then nodded and signaled the two of them to get busy. He said as he took out a stack of grant applications from the drawer. Take this and go to Secretary Liu to get it stamped, and then submit it to the school for reporting. Thats it. So, the 30,000 yuan of funding is actually relatively abundant. After the brief excitement, Lei Zhixing took a deep breath, tried to calm down, and then picked up the allocation form from the table: Professor Chang, lets go get some work first. If nothing else happens, the specific feasibility analysis report should be available before the end of next month. Obviously, the depth of resources in this laboratory is unfathomable. Chang Haonan simply wrote the amount and purpose on it, signed his name in the lower right corner, and finally tore it off and put it on the table: This is also Chang Haonan''s deliberate move. ?Especially for the reliquefaction of boil-off gas, the main consideration is the technical route of the reliquefaction process. It is impossible to study such a complex content as the strength of the hull in the early demonstration process. Under normal circumstances, a feasibility analysis, even one that is very detailed and involves some preliminary experimental verification, does not require a particularly high cost. ?Chang Haonan nodded first, but then lowered his head and pondered for a moment, and then continued to add: However, the opposite side is also a central enterprise that has just been transformed into a group for a few years. It is estimated that it will not be very efficient in this kind of spending money, and we cannot waste this time. Lending funds between different projects vertically is basically unfeasible, but horizontal projects are much more relaxed in terms of review. In this way, I will first allocate 30,000 yuan from the laboratorys public funds to you as project feasibility study and pre-research funds. After the project is officially declared, I will loan the money back. ?Lei Zhixing''s pupils trembled a little when he saw Chang Haonan writing the words "30,000 yuan". Even proposed it on his own initiative. Thispre-research funding? There is no doubt that Lei Zhixing and Liu Fangping are two people he wants to entrust with important responsibilities. But everything must be done step by step. Whether it is from the perspective of gradually increasing the stakes and giving them enough room to adapt, or from the perspective of testing whether the two are reliable enough, it is a good choice to first let them independently preside over a feasibility demonstration process. ?On the other side, Lei Zhixing, who had just walked out of the office, took out the appropriation slip and stood at the stairs and read it over twice. "What are you doing?" Liu Fangping, who had already gone down half a flight of stairs, turned back with doubts on his face: "nothing." ?Lei Zhixing shook his head and followed his friends footsteps: Im just thinking that we didnt choose to stay in school, but listened to Teacher Yan and came to Beijing Airlines. This step should be the right one..." ?Although at the school level, Qinghua is still a much better platform than Beijing Airlines. But for their two little lecturers, the most important thing is the laboratory they work in and the boss they work with. No matter how many school resources there are, they will be empty if they are not allocated to individuals. Liu Fangping doesn''t talk much, but he definitely doesn''t have an expressive ability disorder. He''s just reluctant to speak in most cases: Of course, Professor Yan will not trick us. Besides, when he was working on the die forging press, he had already been in contact with Mr. Chang. He is definitely a person with a high enough level..." at the same time. Paris France. After lunch time, Serge Dassault and Charles Edelsteiner were walking on the path inside the group. Charlie, has the news that we are planning to cooperate with the Chinese been released? ?Dassault looked at a sycamore tree beside the road and asked suddenly. According to your request, the cooperation was negotiated under the name of a civilian project. Two days ago, I gave some inside information to a reporter from the New York Times through my acquaintances in the media. ?Ed Steiner nodded and replied In fact, Wen Kangjians previous worries were justified. ? Serge Dassaults wishful thinking is indeed to try to make General Electric feel some sense of crisis by releasing a signal of cooperation with China, thereby restoring the relationship between the two parties... Ahem Cooperative relationship. In fact, according to his initial plan, he only needed to have some simple written exchanges with China, and there was no need to enter formal negotiations at all. ?It is also for this reason that he chose to use a loophole-filled method of a business jet cooperation project as a cover Because I had no intention of hiding it in the first place. ? Dassault even wanted to do it with a big fanfare and let the whole world know about it. Just considering that it was a bit too fake to do so, I made it a little more reserved. But it was also reported by the media as soon as the two parties started to contact each other. So, what is the reaction from the United States? Has it expressed its intention to continue to cooperate with Snecma? ?Dassault asked with a confident look. But facts have proven that the literature of spoiled wives is not necessary. If you have no intention of actually flipping the table, don''t threaten the other party by flipping the table. After hearing his bosss question, Ed Steiner shook his head with a complex expression. ?Dassault frowned upon hearing this. But apparently not yet aware of the seriousness of the matter: They refused? ?Ed Steiner shook his head again, and then spoke with a slightly bitter tone: Actuallyso far, we have not received any feedback, and the United States seems to have simply ignored the news Dassault''s expression froze on his face. "how come" ?Ed Steiner did not answer. The air fell into silence for a moment. Obviously, this is not a question with a possible answer. For a moment, Serge Dassault felt that his mind was a little confused. ?In his view, even if GE cannot directly change its mind, it can at least bring the other party back to the negotiating table. Perhaps at the very least, the latest F414 engine can also be made available for production Rafale. ?In this way, although Snecma will suffer some losses, the impact on Dassault will be minimized Re-matching the new engine is bound to take some time, but it will always allow the Rafale fighter jets to be delivered to the French army on time in name. Ahead of the J-10 and EF2000. ?But against all odds, I didnt expect that the other side of the Atlantic didnt even pay attention to him. This is rather stiff. Mr. Dassault. After the awkward atmosphere lasted for a while, Ed Steiner finally spoke: Actually, in order to prevent this from happening, I specifically asked Oliver Willy to maintain contact with the Chinese side. So, its probably not too late to go back and find the Chinese people now (End of this chapter) Chapter 785 Controversy caused by Torch Lab (counting yesterday) Chapter 785: Controversy caused by Torch Laboratory (counting yesterday) Facing Ed Steiners request, Dassaults mind started a battle between heaven and man. ?The reason why he agreed quite easily last time was because at that time he wanted to use the name of cooperation with China to make GM change its mind, and there was no psychological burden. But now we really want to cooperate with China... ?This decision is still relatively difficult to make. ?Although the main body of the cooperation is definitely the Snecma Group, for a joint R&D project like Rafale, Dassault is bound to be affected. For example, the most direct one. ? Serge Dassault has always hoped to make the Rafale fighter jet the second export business card after the Mirage 2000. Even after the Rafale A prototype flew for the first time, he had already started contacting potential buyers. But if the mass-produced aircraft uses an aeroengine with Chinese technology, customers will inevitably have concerns before purchasing. On the one hand, China was not famous for its aviation industry in the past. Even though the situation has changed in recent years, aviation engines and complete aircraft are two different fields. It is difficult not to worry about the power of Rafale fighter jets. reliability. ?Of course, the technical aspect is actually secondary. I can only say that it is outrageous. They had always hoped to improve performance by tapping into the potential of single-rotor engines. It was not until they found that this road was completely unworkable that they hurriedly turned to a dual-rotor solution by borrowing General Electric''s design. As a result, they had almost no experience base. Painting a gourd and painting a scoop has become a dog, and finally reached this point. too fast. But why do Chinese people Instead, it is a project mainly focused on China itself, which can form a relatively complete aviation industry system. ?Dassault, who was in a state of hesitation, sighed. ?Dassault put his hands behind his back and continued walking along the path, while Ed Steiner quickly followed behind. Introducing a fighter jet with Chinese origin into the main equipment of the air force is a risky matter for many countries, especially NATO members ?This makes people feel very divided. ?Things have developed to this point. In the final analysis, Snecma Groups technology route choices in the past few decades have been too conservative, or in other words, there is inertia. In fact, during this period, Ed Steiner even compiled some of Chinas representative achievements in the aviation field in recent years. An outsider might be blinded by the large number of cooperation projects with Russia, thinking that China may have reached some kind of agreement with the Russians and thus obtained a huge amount of Soviet technological heritage. So, it doesnt seem like theres anything fishy about it. I cant figure it out. The French aviation industry after World War II also developed step by step in this way. ?However, Ed Steiner can see that although these Russian-related models and technologies are numerous, they are isolated from each other. "well" ?Ed Steiner, who was half a step behind, did not answer the call. He spoke very quickly, and his mood was obviously fluctuating: "Although Snecma Group has relatively little technology accumulation in the field of dual-rotor engines, it is, after all, one of the major shareholders of CFM International. It should have developed its first mass-produced turbojet engine just three years ago. Is China stronger? ?Then dont say it out loud, we wont even be able to produce a mass-produced machine in a short period of time. The only problem is. ?Therefore, looking at the indecisive boss around him, Ed Steiner decided to give the opponent a boost of strength: Mr. Dassault, in fact, before us, Eurocopter had already cooperated with China to design the main rotor and transmission mechanism of the NH90 helicopter. ?He doesnt understand either. Thats it for the Americans, Russians and British. Their accumulation of aviation technology is richer than ours, so its understandable that they can produce aviation engines with better performance. It did not say that we have no other way to go. ?However, as a technician, Ed Steiner knows that there are some things that cannot be understood by his own analysis. Because, its not just Dassault who doesnt understand. Although judging from the current situation, this risk is only potential. Anyway, there is not much conflict of interest between these two countries, which are nearly 10,000 kilometers apart. Especially in the last four to five years, we can almost catch up with the progress of other countries in the past 20 to 30 years. The rapid development of the Chinese people has become an established fact. It is useless if you do not agree with it. ?This is completely consistent with the performance of a late-developing country in the process of technological catch-up. But there is no doubt that the entire system itself belongs to the Chinese people themselves. The more critical issue is that the export of weapons and equipment is different from ordinary civilian products, and involves quite complex interests. But if you dont cooperate There are indeed some links, even key links, imported from abroad. Its better to take advantage of this. His angle is very tricky. But it is enough to become a bargaining chip for some countries to abandon Rafale and switch to F16 or EF2000. And, as you said last time, China has approached us in the past to seek technical information about the CFM56 core machine. It has been a little more than ten years since we were fully prepared..." The progress of the Chinese people is really too fast. This sounds depressing at first, and at least it will make the other person feel worse. Secondly, Dassault must also know about this matter. Its just that I cant get over the hurdle in my heart. The best way to help him get there is to tell him. ?Eurocopter did it too. ??And it is also a military model. So, there is no need for psychological burden. Sure enough, Dassault, who had been walking forward with his head buried in his chest, suddenly stopped and looked at Ed Steiner in astonishment. ?That look contained at least two meanings. The first thing is, Is there such a thing?; The second is "How do you know this kind of thing?" Although they are both aviation companies, fixed-wing and helicopters are fundamentally different apart from the fact that they can both fly. Therefore, the relationship between Dassault and Eurocopter is limited to "friends" in the literal sense. I have a classmate in college who is responsible for the NH90 project at Eurocopter Group. Dassault didnt need to speak, Ed Steiner answered directly: At the beginning, their project was in a deadlock due to technical problems, and China was able to solve it...well...its similar to our situation. In fact, the situation of NH90 is much more complicated. In addition to technical flaws, there are also disputes that occurred during the multi-national cooperation process. But now we have to convince Dassault, so we naturally have to focus on the key points. So dont other countries participating in the NH90 and preparing to purchase this model have any objections? Why do you have opinions? ?Ed Steiner shrugged: On paper, 100% of NH90s technology and components come from NATO member states. Looking at Dassault, who still looked puzzled, he continued: Actually, there are many ways to whitewash technology from China into our own. Of course, this requires cooperation from China, but I think as long as we can sit down and talk, there is nothing that cannot be agreed upon. Different from Dassault, Ed Steiner was not only a technician, but also a ruthless professional manager. This means that he is rarely subject to unnecessary emotional disturbance. Of course, it is also easier to be persuaded by interests. ? Dassault rolled his eyes. Although he did not give an answer immediately, his heart was obviously relaxed. The two stood facing each other like this for a long time. Finally, Dassault nodded slightly: Just talk to them as you said. However, dont be too anxious and try to get better cooperation conditions... Hearing this, Ed Steiner finally smiled: Of course, I promise. ?The restless October has finally passed. ??Although Dassault has agreed to contact the Chinese side, this kind of big job is not like buying vegetables in the wet market and haggling over the price in a few minutes. ?The conditions initially proposed by the two sides are too far apart, and it is clear that it will take several back and forths before meaningful negotiations can begin. Hence, Chang Haonans main focus during this period is still on the Torch Laboratory and the mid-term inspection of the turbofan 10 installation test. Relatively speaking, it is a less strenuous and even somewhat boring time. ?It''s a pity that the tree wants to be quiet but the wind doesn''t stop. One day in early November, Chang Haonan was testing a manifold learning algorithm improved by Yao Mengna in the office as usual, when he saw Liu Chenchen appear at the door of his office with an angry look on his face. Teacher Liu? Chang Haonan watched the other party wandering outside for several times, and finally couldn''t help but take the initiative to speak: If you have anything, please come in and talk? ?Liu Chenchen is the administrative secretary of the laboratory, but in the school, anyone with an official position can be called a teacher. So in front of others, it is better to call it this way. Professor Chang, this is too much! Liu Chenchens eyebrows were raised upright, and Chang Haonan even worried that the tiles on the floor would be broken by her high heels when she walked in... After arriving at the desk, the former placed a newspaper in front of Chang Haonan, and then turned it 180. Lets discuss why China cannot produce world-class scientific resultsstarting with an unusually established laboratory ?Chang Haonan directly read out the title of the report. ??Although I havent read carefully what is written below, judging from Liu Chenchens angry expression just now, this is obviously talking about Torch Laboratory... So...this is talking about us? ?Chang Haonan just felt like laughing. "certainly!" Liu Chenchen couldn''t laugh it off. She joined such a promising research group right after graduation, when the sense of belonging and collective honor was at its peak, plus... Although it is a bit strange to say this, the boss of the research group is her former student when she was a counselor. In short, she was angrier than she was when she was scolded. ?Chang Haonan looked down slightly and read the content at a glance. It was pretty much what he expected. It is a public document that is very in line with the characteristics of this era. ??Using his school-enterprise joint laboratory with special policies as an excuse to attack the entire social operating system. They especially criticized the Torch Laboratorys loopholes in funding management, arguing that it was a complete waste of public funds and a waste of national funds. They also questioned why it occupied a large amount of funding but could not produce equivalent research and development results. Finally, Beijing Hang University and Torch Group were labeled as causing the loss of state-owned assets. ??The speech is so impassioned that it can even be regarded as an essay. No wonder Liu Chenchen felt red and warm after watching it. However, for Chang Haonan, who has experienced the era of public knowledge on the Internet, the lethality is too low. Can only be regarded as a public intellectual of the Tomb Sect. Even Chang Haonan himself can write a better one... (End of this chapter) Chapter 786 Didnt you hit the muzzle? Chapter 786 Arent you on the receiving end of a gun? Professor Chang, why arent you angry at all? ?Looking at Chang Haonan, who had no expression of anger on his face, Liu Chenchen felt that he couldn''t hold himself any longer, so he immediately put his hands on his hips: This article is aimed at you throughout Chang Haonan couldnt say that I had seen better writing in my previous life, so he could only wave his hand: This article is not directed at me, nor even at Torch Lab. It is just used as a primer. In fact, if the author of this article really knew the situation of Torch Labs and Chang Haonan himself, I am afraid he would not dare to touch this porcelain. After all, if they really have the courage, ??The other party obviously only saw some fragments from the announcement issued by Beijing Hang University, and then he imagined a plot of "the director of the laboratory colluded with the school and state-owned enterprises to harm the public and enrich private interests", and wrote a short essay and posted it. In fact, anyone who needs to take a look at Chang Haonans resume on the Torch Labs homepage will know that the content written in this article is completely different from the actual situation. But let alone 1999 when the Internet had not yet expanded, even in 2019 in the 5G era, it was impossible for a few people to specifically verify it. ?But it doesnt matter. Just as Chang Haonan was about to speak, the phone on the corner of his desk suddenly rang. But even so, he still discredited our laboratory and Jinghang University! So, he has been doing what he can to improve the disadvantages of public opinion without affecting his main business. ?Although it is not entirely the work of a magazine, it at least contributed to it. ?However, the call this time was not from the confidential line, but from the outside phone. Being not angry does not mean that Chang Haonan is not prepared to solve the problem. ?She just feels that these rumors cannot be allowed to spread unchecked: Hello, hello, Im Chang Haonan. ?This is also the key reason why many rumors are obviously of low quality but can spread for a long time. In the past, quality problems were exposed for Japanese brands in Europe. When word-of-mouth declined, Chang Haonan registered the name "Double Tree" several years in advance, and then handed it over to the Science and Technology Commission to take charge of operations. The main content was also a short composition. , is just a short foreign composition, which is equivalent to using magic to fight magic. ?The people of this era are more accepting of funny jokes and chicken soup for the soul than Chang Haonan imagined. As for the hidden meaning behind these contents, not many people care. ?Although debating scriptures cannot directly change the material world, as a person who has experienced it, Chang Haonan knows very well that if it is left unchecked, it will have a relatively large negative impact on the entire society. Liu Chenchen was stunned for a moment, then said hello and left the office first. As a person who lived at the turn of the century, Liu Chenchen did not have much idea about this, let alone imagine that the writing and publishing of this type of articles were organized and planned. "I think" Some traces can even be found in textbooks. ?Of course, this is similar to Chang Haonans idea. The reason why this form works so well is because its influence is subtle. At least judging from the sales of "Double Tree", the effect should be good - ?For example, in the past two years, Chang Haonan has clearly felt that the level of superstition among the people towards Japanese products has decreased a lot. Professor Chang, its me, Tang Lintian. ??The relationship between Principal Tang and Chang Haonan happens to be stuck on a standard line. For those with a higher level of confidentiality than him, all calls with Chang Haonan are confidential. Those with a lower classification level than him cannot get into secret machines at all and can only use outside lines. Tang Lintian himself, in principle, needs to choose according to the situation - the confidential line is a very valuable contact method and needs to be kept open as much as possible. It is impossible for you to use it to talk about irrelevant things or talk on the phone. ?After announcing his identity, there was a moment of silence on the other end of the phone, and then he spoke: "Professor Chang, the school''s publicity department has discovered that there are some rumors about the Torch Laboratory not meeting the implementation conditions. Now it has sent people to find a way to deal with it. I will let people explain the details later." Do you think this is a coincidence? Principal Tang, I think I know what you are talking about. Chang Haonan turned his attention back to the newspaper on his desk: Lets talk about why China cannot produce world-class scientific results. Thats the article in the Nancheng News, right? Hearing that his voice was not as angry as expected, but rather smiling, Tang Lintian on the other side of the phone was stunned for a moment, and then asked cautiously and tentatively: Then whatProfessor Chang, you alsosaw it? Chang Haonan smiled angrily because he was obviously worried. Well... the administrative secretary of our laboratory just showed me this newspaper. Chang Haonan''s mentality is quite stable. Professor Chang, dont worry, I have explained the situation to my superior unit and will notify them of the withdrawal of the manuscript as soon as possible ??Tang Lintian''s actions were indeed very fast, but his solution was a bit blunt. ??This time is not an online media. In the era of paper media, what is the use of just asking people to retract articles? Therefore, Chang Haonan quickly stopped: "Hey, don''t, don''t, don''t, don''t This was written in the newspaper, and it has been published. Even if the article is withdrawn, what should be seen has already been seen. On the contrary, it makes people feel that there is no three hundred taels of silver here." As the famous social activist Humphrey Appleby said. Only official denials are credible. For the majority of the melon-eaters, it may have been just for fun at first, but if they see another retraction statement, the topic will become full. Tang Lintian was stunned after hearing this, and obviously realized that what Chang Haonan said was reasonable: "But... you can''t refuse to respond, right? If this matter gets fermented, it will have a negative impact on the school, the laboratory, and Professor Chang yourself." The response must be a response. Chang Haonan said in a deep voice: We must pressure them from their superiors to retract the article. Moreover, they must not only retract the article, but also require the other party to issue a public apology. "That" Tang Lintian was interrupted just as he finished speaking: "but not now." Hearing what Chang Haonan said, Tang Lintian, who was originally upset, suddenly calmed down ?Every time the former expresses his position like this, he already has a perfect plan in mind. Therefore, he did not answer the call and just waited for Chang Haonan''s further explanation. Didnt that article say that we cant produce equivalent R&D results? ?Chang Haonan smiled and glanced at the date in the lower right corner of the computer screen: Exactly, if we count the days, our laboratory should be able to come up with some influential results before long... If it were normal, this matter would actually not be easy to solve. ?Although not all Torch Laboratory projects are classified, most of the results are difficult to disclose either due to confidentiality or commercial reasons. But it was just a coincidence. ?Chang Haonans paper proving two lemmas in the field of differential geometry will be officially published later this month. The first completion unit is the Torch Laboratory. ? And "Annals of Mathematics" still has some status in the world of theoretical mathematics... Since Chang Haonan published the paper quietly, Tang Lintian didn''t know that he had done a big job at this time. ? Its just that for the latter, if Chang Haonan can express influential results, Im afraid there will be a lot of movement. Therefore, feel at ease completely: "Then... I will stay put for now and wait until Professor Chang''s results come out." Theres one more thing, Principal Tang. Since someone happened to bump into the muzzle of his gun, Chang Haonan was not prepared to let him go easily: "You should find someone to write an article. The style should be similar to the article in the newspaper. The theme should be to criticize the Nancheng News for its fraud and fraud. It completely ignores the objectivity of the media. In short, it should be as satirical as possible. After the other side withdraws the article, it will be published. ! (End of this chapter) Chapter 787 Make big news Chapter 787: Make big news In fact, the official release of the sixth issue of the Annual Journal of Mathematics in 1999 was slightly earlier than the end of November expected by Chang Haonan. Just after the middle of the month, he received an email stating that his paper had been published and had been selected to be included on the back cover of this issue of the journal. ?Sent along with the email was an invitation letter from Mikael Lagerstedt with basically the same theme as last time. ??However, the content is much richer. The other party said that the annual mathematics conference at the end of next month, because it happens to be at the junction of the millennium, is regarded as "a summary of the previous millennium and an outlook for the next millennium", so it will bring together many people from the previous era. and famous mathematicians of the era. Among them, naturally, they also include Richard Hamilton, Isadore Singer, Michael Atiyah, Yau Shing-tung and other big names in the field of differential geometry. ?Furthermore, Lagerstedt also said that the annual meeting will not involve topics such as award selection and project sponsorship, but will only involve pure academic exchanges, as well as eating and drinking. ?This basically implies that although the annual meeting is hosted by Princeton, it will not involve disputes between the interests of different schools of thought In foreign academic circles, there are also mountains. ??If the annual meeting is held in China, he will definitely go there more actively than anyone else... So, no awards or sponsorships are involved, so there is less trouble. ?The other party probably regarded him as an aloof and strange person like Perelman. ?In this era, the technology to directly identify links in text format still does not exist. A pair of orthogonal complete sets of incomplete Latin squares I have to say that, as the most influential journal in the field of theoretical mathematics, it is probably not one of them. In addition to Princeton Universitys reputation in the field of mathematics itself, the publisher is also really good at typesetting and proofreading. ??I thought the reason I didnt reply to the email last time was because I didnt want to get involved in complicated school struggles. Not surprisingly, it is the reading page of the current issue of the journal. ?While thinking this, Chang Haonan copied the link attached to the email into the address bar of the browser ?The reason why he did not go to the meeting was simply because it was inconvenient for him to go abroad due to his current status, and it had nothing to do with being indifferent to fame and fortune. The unique continuation of the wave equation on the hyperplane By the way, he also took a look at other articles published at the same time as his own. ??And because of their high academic level and longer history, the relationship between mountains is even more complicated than in China. ?Of course, in the final analysis, any mountain is for fame and money. ??Many of the love and hatred of horse-catching people can even write a book on their own. ?It''s just that people who are below a certain level cannot even enter other people''s circles, and of course they can''t feel it from the outside. It should be said that as a senior editor, my level is still high. In the first few years of the digital version of the Annual Journal of Mathematics, it provided free reading and downloading. Later, it was discovered that no one would buy the physical version, so it became a paid subscription. Its a pity that I guessed in the wrong direction. Even the author Chang Haonan looks much more comfortable than the original manuscript he wrote in Word. Chang Haonan smiled helplessly while looking at this lengthy invitation letter. Mathematical research on multiphase flow under shear through order parameter formulas and asymptotic analysis It must be admitted that in terms of theoretical science, China does still have a long way to go. Except for Chang Haonan, there is no other author from China. Even if there are some Chinese names among them, if you look at the institutions, they are from the United States or Europe. However, as far as the content of this issue of the journal is concerned, there are not many highlights except for Chang Haonans article. On the one hand, it is impossible to have so many earth-shattering results. Even in the world''s top journals, many articles in them are inevitably filled with water. On the other hand, as the last issue in 1999, almost half of the space was reserved for review-type articles signed by various big names. It can also be regarded as a slogan that fits the vision for the next millennium at the banquet next month. One of the articles even mentioned his results. ?The author is none other than Richard Hamilton Considering that the two were actually published at the same time, it is obvious that the other party is also one of the reviewers... ?Chang Haonan shook his head, closed the web page, and then looked at the newspaper he had kept next to him these days. Nancheng Daily. The reason why he asked Tang Lintian to stand still before was because he was waiting for this opportunity. Now, the time is clearly ripe. ?At this moment, a notification sound suddenly sounded on his mailbox interface. A new email. ? Judging from the website address, it should be from Yenching University. Tian Gang? ?Chang Haonan was stunned for a moment, and then remembered that he and the other party had met once at the dinner after the National Day. It is a side relationship in the physical sense. Only said a few words in total, not even an acquaintance. In the text, Tian Gang first congratulated Chang Haonan for his article being published in the Annual Journal of Mathematics, and said that his "Chang''s Lemma", or "Millennium Lemma" can be ranked as the most popular in the field of differential geometry in the past five years. An important achievement, and if you look at the domestic perspective, it can be regarded as the most important achievement in the entire field of mathematics since the 1990s... A rainbow fart wrote two long paragraphs, and then got to the point. He said that Yenching University has plans to establish a mathematics research center, and is currently inviting world-renowned scholars in the field of mathematics to give lectures. He hopes that Chang Haonan can accept the invitation and go. Give a lecture on the field of differential geometry. Chang Haonan was not surprised by this kind of invitation. Especially the fact that the other party mentioned "Chang''s Lemma" in the email shows that this title has gained some recognition at least within the international mathematics community. It has been a long time since such representative results appeared in the Chinese mathematics community. Considering that the author is not from mathematics or even science, this article is undoubtedly equivalent to a blockbuster. However, the paper has just been published for a few hours, and I can finish reading the article, write such a long email, and send it to him on the same day... Its really unlikely. Therefore, Chang Haonan guessed that Tian Gang was probably one of the reviewers, and these things had been prepared long ago. Just waiting for this day. ?This can also explain why the other party wanted to come up and talk to him at the National Day dinner rather bluntly. ?However, Chang Haonan was still prepared to decline the invitation in the email. ??The Mathematics Center of Yenching University, if it continues to develop according to the original timeline, will involve a series of useless talk. There is no need to get involved. After thinking for a moment, he also replied to an email. First, he praised the other party according to the terms published by Google, and then said that he was not a professional mathematician and had projects to do. The paper was just some "accidental discoveries" during the research process, so there was really nothing to do in a short time. I have my energy to take care of other things, but I promise that I will take the stage to introduce my research results at the "appropriate time"... Then, click Send. At the same time, the office of the president of Beijing Hang University. ??Tang Lintian answered a call from the Chinese Academy of Sciences. Principal Tang, congratulations, youve got a great talent! Yuan Xiangyas voice rang on the other side of the phone: It took less than half a year to produce such a big result without any fanfare. It makes those of us who specialize in mathematics feel a little ashamed. It was a round of flattery that immediately confused Tang Lintian. ?He raised his head slightly and spent a few seconds recalling it. He was very sure that he had not heard of any earth-shattering achievements in the school recently. Professor Yuan, what are you talking about? ?Tang Lintian asked somewhat puzzledly. They are obviously not on the same channel. Principal Tang, you dont have to hide me when youre with me, right? Yuan Xiangya said in a half-joking tone: When he defended his doctoral degree, wasnt I still a member of the review committee? Is itChang Haonan, Professor Chang? He asked tentatively. Until this moment, Tang Lincai vaguely guessed that the other party should be talking about Chang Haonan. After all, the latter promised him just last week that there would be big results in the near future. It''s just that I didn''t expect that this "recently" would be so close. Who else could it be? At this point, Yuan Xiangya probably realized that Tang Lintian seemed to really not know the situation, so he explained: "A paper by Professor Chang was published in the just-released December 1999 Annual Journal of Mathematics, and in a review in the same issue, the leader of differential geometry, Professor Richard Hamilton, also directly used "Chang''s lemma" was used to name the two conjectures he proved." "Old Tang, although you are not a person in the field of mathematics, you should be able to think of the significance of a result named directly after him..." After hearing this, Tang Lintians hand holding the receiver trembled slightly and he opened his mouth, but no words came out for a long time. Changs Lemma You should know that Yuan Xiangya also has "Yuan''s Lemma" named after him. The latter was able to become a "half-step academician", that is, a second-level professor, at the age of 39, precisely because of this achievement. ? And Chang Haonans first step into the world of mathematics actually reached this level... (End of this chapter) Chapter 788 Criticize them! Chapter 788 Criticize them! ?After ending the call with Yuan Yaxiang, Tang Lintian quickly searched online for the Annual Journal of Mathematics. As an engineering professor who has never dealt with theoretical mathematics in the past, although the latter has heard of the name of this journal for the first time, his previous understanding of it was limited to "very awesome". As for how awesome it is, I have no idea. After all, the School of Science of Beijing Airlines could only be regarded as an affiliate of the School of Aeronautical Science and Engineering in the past. The original purpose of its establishment was to solve some mathematical and physical problems involved in aeronautical science, so it was more focused on the application level. Later, as the research on aviation science itself gradually deepened, the topics of the two colleges even overlapped to a large extent. ? Even if there are occasional theoretical achievements, they are mainly related to the field of mechanics. As for theoretical mathematics ?Havent even thought about it. Im off to go Looking at the introduction to the Annual Journal of Mathematics and the Princeton School that appeared on the computer screen, Tang Lintian gently touched his chin and let out a heartfelt sigh: "Amazing" After all, as we all know, there are usually more than three in the top three in the country. It happens to be this time as well. On the other side, Chang Haonan had just finished replying to Tian Gang''s email and contacted Tang Lintian. The phone on the table rang again. Principal Tang, its me, Chang Haonan. No, top three. Then at least among the top five in the country But first of all, you still have to respect your own ideas. ??Tang Lintian sat up straight suddenly. ?Perhaps if he enters the world of mathematics, he can do a lot. Chang Haonans role is very big. At least as far as the current situation is concerned, even a few more theorems named after Chinese people will not be enough to allow Chang Haonan to shine in the field of application for a few more years. ?Of course, this idea flashed in Tang Lintian''s mind. Its just He figured out what Chang Haonan meant when he asked him to stand still that day... ?He now somewhat understands why Yuan Xiangya called him with great fanfare to announce the good news. Its really worth it. ??Tang Lintian took a deep breath, calmed down his a little accelerated heartbeat, and leaned back on the chair. Secondly, at least now is not the best time. As for the top five in the country, we have to go to 20. ?For this paper, if he is willing, he can pull Chang Haonan out and establish a separate school of mathematical sciences. Professor Chang, congratulations! ??Tang Lintian didnt talk nonsense, he just said congratulations: This result is of great significance to you personally and to our school! After Chang Haonan made the call, he originally thought of announcing the good news to Tang Lintian first, but the latter acted as if he had known about it for a long time, which made him speechless. He thought to himself: Why are everyone so outrageous? They seem to be better than him. The author knows earlier that the paper has been published. Actually, this is what he doesnt know. For those who specialize in theoretical mathematics, it is not unusual for the last issue of the Annual Journal of Mathematics to be released in advance every year. Even the dates advanced in recent years are the same. So, by this day, they will basically start paying attention to the content of the journal early in the morning. The name of a Chinese person is quite conspicuous in it, and can basically be seen at a glance. By the time Chang Haonan opened his mailbox and saw the notification email, people like Yuan Xiangya had already been reading the paper or discussing it. Tang Lintian on the other side of the phone did not wait for Chang Haonan to reply. He just paused for a moment and then continued: Next, tell me, how exactly do you need the schools cooperation? This is obviously referring to the Nancheng News report. Chang Haonan happened to make this call for the same purpose. Actuallythere is no need to do anything special. He replied: "Considering that you already know about it, I estimate that this paper should have been widely spread, so it should not take a few days for the official media to come to us for interviews and reports." "Then...the article I asked you to find someone to write last time, criticizing the Nancheng Daily, should be ready, right?" "certainly." ?Tang Lintian gave an affirmative answer. "That''s good." Chang Haonan nodded: After the report comes out, you can follow your original plan, pressure your superiors to withdraw the article, and then issue an apology statement. Actually, the operations are the same as before. Its just that Chang Haonan changed the order. This involves a preconceived issue. In the late 1990s, Nancheng Daily still had a large readership. ??If after that report came out, a retraction and an apology statement came out of the blue within two days, then the first thing most people would think of would be - The report has been suppressed. ?According to Chang Haonan''s understanding of Nancheng News, the other party must be very weird in the statement. This will only have the opposite effect. By the time public opinion ferments, even if the results are publicized later, the image that can be restored will be limited. ??But if the melon-eaters read that report and the next relevant news they saw was the promotion of Changs Lemma, the situation would be completely different. Considering that there was only a little more than a week between these two events, at this time, the clown became the Nancheng News. Everything was as Chang Haonan predicted. CCTV acted very quickly. After all, this is not the first time they have interviewed Chang Haonan. After receiving the May 4th Youth Medal, and after being gifted with the inscription "The merits will last forever" after fighting floods and rescue operations, I gave him exclusive interviews. ?Especially for the second time, I had the opportunity to appear in several CCTV news programs every day for a week. ?Of course, the situation at that time was quite special. The news was almost constantly reporting on disasters in various places, as well as flood relief and rescue activities. It can be regarded as some exposure bonus. This time, although the specifications are slightly lower, it is still a three-minute column on the 7pm news. Very exaggerated. Following the news report was an editorial from the China Youth Daily. ?Of course, it is impossible for national media to openly criticize people in the streets. ??Only implicitly criticized Nancheng Dailys previous false reports on the Torch Laboratory. ?The real murderer came from Chang Haonans old employer, the Commission of Science, Technology and Industry for National Defense. In the December issue of "Doubletree" published in late November, the first article was a comment on this matter. As a "folk" and "entertainment" magazine, there is no concern about face. directly put together the picture of the Nancheng News article, the first page of Chang Haonan''s paper, and the CCTV report on the Torch Laboratory. Then he gave a title with full attack power Who is wasting money? The question mark at the end is particularly big. The content is also very targeted. ??The author said that although Nancheng News and Beijing Hang University are different entities, in the final analysis, they both feed on the financial system. There should be no distinction between high and low, they just perform their respective duties in the social division of labor. Now, Beijing Hang University and other parties have proven that after they gave the Torch Laboratory special policies, it took less than half a year to produce blockbuster results recognized by the international mathematics community. As a scientific research institution, it is obviously possible It is said that the task was exceeded. ??However, your Nancheng Daily carried out false reports at the most critical stage before the publication of such a scientific research result that brought glory to the country. As a media, it seems to be even more incompetent... (End of this chapter) Chapter 789 temporary victory Chapter 789 Temporary Victory Compared with Nancheng News, which was founded in 1997, Doubletree was founded in the first half of 1998 by Chang Haonan on the suggestion of Du Yishan in order to publicize the quality crisis of Japanese companies. It has only been more than a year now, and it is still relatively young. . However, after all, it is positioned as an abstract journal. In other words, the content covers everything from national events, astronomy, geography, to neighborhood gossip. Therefore, the audience range is much wider than that of Nandu Daily, which only reports social news. Therefore, the readership is not the same. No disparity. Whats more, Chang Haonans current wave also includes China Youth Daily and the Central Media Station. ?The 7pm news has an influence that almost no one can match in this era when television is the main entertainment method. Therefore, in fact, from the moment Chang Haonan decided to launch a counterattack, the outcome was already doomed. ?Yangcheng, in the office of Nancheng Press and Media Group. Senior editor and reporter Meng Yong looked at a magazine in front of him with his eyelids twitching. "Double Forest". Everything started nearly half a month ago. ??An intern editor below said that he found a very breaking news that can expose the widespread corruption in academia in China. ??He briefly checked the manuscript written by the other party and found that the target was a school-enterprise joint laboratory that had just been established less than half a year ago. It was likely that there was a problem of poor fund management. ?Of course, they definitely dont know whether it exists or not by sitting in an air-conditioned room and thinking about it. But thats not important either. As long as we can find a reason. ?This laboratory is fortunate to be included in the pilot program for industry-university-research cooperation, so the degree of freedom in research projects is greater than that of normal research institutions. Furthermore, the enterprise in the school-enterprise alliance happens to be a state-owned enterprise. Very suitable as a target for their attacks. State-owned enterprises collude with universities inside and outside to embezzle research funds, resulting in a large amount of national funds being consumed but no useful scientific research results being produced... What a perfect topic. As long as you add at the end some stories about how strict management and economy are implemented by some foreign scientific research institutions, and how strict self-discipline and indifference to fame and fortune foreign scientists have, it will become an excellent report that "exposes the darkness of society and reflects on real problems." In fact, even Nancheng Daily will at least check the content before publishing in most cases. At least the flaws cannot be seen too quickly. But this time the situation is a little different. First of all, Meng Yong was in urgent need of a report on this topic. The celebration of the 50th anniversary of the founding of the People''s Republic of China at the beginning of last month was very effective, especially the military parade, which greatly improved the self-confidence of the people. There are even voices among the public that believe that sooner or later we can catch up with developed countries like the United Kingdom and the United States. ??This kind of unrealistic idea is something Meng Yong doesn''t want to hear. But directly attacking the National Day commemorations I dont dare. So, he believes that it is necessary to dig out some real news hidden under the surface of prosperity to calm people down. Secondly, the Torch Group has some private disputes with Meng Yong About a year and a half ago, he had just joined Nancheng Daily and wrote an editorial titled "It is not advisable to "launch satellites" under administrative pressure", in which he ridiculed the newly established Equipment Industry Department at that time. As a result, Torch Group entered into some kind of technical cooperation with an Italian company within a few days, and even sold machine tools produced in China to Europe, giving him a slap in the face. ??If that''s all, Meng Yong has long been used to similar things and doesn''t care about being slapped in the face. However, a few days later, he received an anonymous email. is a picture frame. It contained his editorial and a report on the success of the Torch-C.B. Ferrari Group in producing top-notch machine tools. This is a naked provocation. ?Meng Yong smashed the photo frame on the spot and threw it out. Just kidding, he is a symbol of the fourth estate of the media. ? Even if there were some reports in the past that were later proven to be false, few people would know about it when the heat has long passed. Only he provokes others, no one has ever dared to provoke him. ?Hence, he has been waiting for an opportunity to take revenge on the opponent. And this time is obviously a good opportunity. In fact, from the perspective of hindsight, even if Meng Yong was careful, it would not be of much use. ??Before Chang Haonan''s paper was published in a journal, even Tang Lintian didn''t know there was such a thing. Unless outsiders can directly contact Princeton Press, Richard Hamilton, or at least Tian Gang, it is impossible for outsiders to predict such a coincidence. In short, Meng Yong only polished it a little and almost couldnt wait to approve the report for publication. At the beginning, it really aroused a good response. So much so that he awarded the intern editor a bonus of 500 yuan. However, the good times did not last long. Just over a week has passed, and even before the topic caused by this report has completely cooled down, Torch Lab suddenly came up with a result. ??Although Meng Yong knows nothing about mathematics, judging from the specifications reported by the central media, he seems to be quite powerful... ?This is very embarrassing. It wouldn''t be a big deal if the situation turned around a few months later and everyone forgot about their report. But now they are stuck at this point in time, which makes them become clowns in Nancheng. Not to mention the subsequent unnamed criticism from China Youth Daily and the direct humiliation from DoubleTree Magazine. ?That three-in-one picture is simply full of contrasts, and its lethality is comparable to that photo frame from back then. And this time it is still public. ?Several times, Meng Yong wanted to tear up the magazine in his hand... ?At this moment, the phone in his office suddenly rang. Meng Yong picked up the answer impatiently and roared into the receiver: "What''s up?" As a result, a deep voice came from the other side of the phone; "it''s me." Meng Yong immediately shrank his eggs: Ahits Editor-in-Chief Feng. Your order ?The other party obviously has no time to care about his attitude: Meng Yong, the superior authorities are very dissatisfied with your publication this time and require us to immediately issue a statement retracting the article and apologizing, and also come up with a proper solution. Its up to you to handle this matter. In fact, if the system is mixed for a long time, you should be able to hear the implication of this sentence, which means that this matter has been determined. ? And "proper resolution" does not refer to the matter, but to the specific responsible person. ??But for a media of this nature, Nancheng Daily, only a few senior executives are on staff. ?Meng Yong is obviously not among them. Therefore, he thought that things could still turn around, so he spoke out the "remedial measures" that he had been thinking about for a long time: Editor-in-Chief Feng, can you consider starting from the results of their publicity, such as questioning the value of that paper, or bringing some rhythm in the direction of academic continuity? Editor-in-chief Feng on the other side of the phone laughed angrily at his unbridled thinking: Their paper was published in the Annals of Mathematics, which is a top journal published by the Department of Mathematics of Princeton University in the United States. You can question Beijing Hang University and the Central Media, but do you still dare to question Princeton? ?Meng Yong suddenly fell silent. ?Although he didnt know what the level of Mathematics Annual was, he had heard of the name of Princeton University. One of the eight Ivy League schools in the United States. For people like them, questioning Americas prestigious schools? Havent even thought about it. "That" ?Seeing that Meng Yong still didn''t understand, Editor-in-Chief Feng was a little annoyed and immediately issued an ultimatum: "This matter has caused a big fuss. I don''t care what method you use. In short, you must identify the responsible person for me!" After saying that, he hung up the phone with a bang. ?This statement is already very straightforward. ??If we really want to clarify the person responsible, the first person to bear the brunt is him, the editor-in-chief of the page, and then the editor-in-chief above cannot escape, and the ones above... Then its not over. ?Hence, Meng Yong knew that he could only adopt another approach. Fortunately, this report was not written by him. So, just put the main responsibility on the intern editor. Others can only consider it as poor supervision... ?Thinking of this, Meng Yong''s heart that had just been hanging was finally relieved. ?Then, I picked up the copy of "Double Tree", got up and walked towards the editor''s office next door... The processing results quickly reached Chang Haonan''s ears. ??Nancheng News will issue a retraction and apology statement in the next three days of the newspaper. The author who wrote the news has also been fired from the publishing house. ?Of course, he could also guess that the person being dealt with was just a scapegoat. The real manipulator behind the scenes cannot possibly fall because of such an incident. After all, some countries have been cultivating rebels for more than ten or twenty years. It is more than just a Nancheng newspaper. At least, compared to the previous results of similar incidents that resulted in three drinks of fine for drinking, this time it is good to seize the opportunity of the opponent hitting the gun and minimize the reputation of Nancheng News in the hearts of the melon-eaters. result. ?Chang Haonan knows very well that the struggle against internal and external enemies is a protracted process. It is impossible to accomplish all the results in one battle. Besides, for him, there are already more important things to focus on - The J-11B fighter jet equipped with a mass-produced turbofan 10A engine is about to make its first flight. (End of this chapter) Chapter 790 J-11B Chapter 790 J-11B The progress of the J-11B on this timeline can be said to be very smooth. In May 1999, exactly half a year ago, Chang Haonans heavy-duty die forging press research team forged the first domestic bulkhead for the new J-11B airframe during the trial production process as a tribute to the National Day. In the following three months, various parts of the two prototypes 01 and 02 were produced, including two batch 00 (trial production batch) turbofans 10A delivered in mass production standards, and the new turbofan 10A provided by Dianke 14 1493 radars were all sent to the 112 Factory one after another. ?The original plan of the factory was to try to get the aircraft off the assembly line before the National Day, and also to present a 50th anniversary gift. But after all, the J-11B uses a lot of new processes and technologies. Considering that the time is a bit tight, in order to ensure that everything is foolproof and avoid haste and waste, in the end we did not meet the deadline for this matter. So the offline date will miss the National Day. ?Of course, the gift banners and internal promotional materials were still produced, but the battle was obviously not as good as those projects that were rushed before the National Day. After more than a month of ground testing and confirming that all subsystems can operate normally on the ground, the first flight was launched. ?Chang Haonan took the Challenger 601 as usual and returned to Shengjing, where he had left for almost half a year. Only this time, Chang Haonan saw a yellow-skinned and black-headed fighter jet parked in front of the No. 2 assembly shop when the plane was circling and descending. ?Under his influence, the J-11B on this timeline today has become more obviously different from the old model, but the difference is still not something that can be seen at a glance from a distance. ?The reason why Chang Haonan was so sure was that there was an unusually large group of people surrounding the plane. In most cases, this is a treatment only available to prototypes that fly for the first time. ?After a tight U-turn, Chang Haonan''s plane landed on the familiar yet unfamiliar runway of Beiling Airport. Mr. Chang, welcome to our factory for guidance! He Ming who came up shook hands with Chang Haonan and said half seriously and half jokingly. Chang Haonan''s previous positions have been the general manager of Torch Group and the chief designer of the Turbofan 10 project. The former is equivalent to a second-level sub-unit under the central enterprise, on the same level as Factory 112, not to mention the Turbofan 10, even after passing Upgrading is no longer considered a subsystem of the aircraft, but is only equivalent to Project 11. So at that time, it was equivalent to brother units coming over to cooperate. ?However, Chang Haonan was further promoted later, and the Aviation Power Group has become equal to the Aviation Industry Group. Now when we come to Factory 112, although there is no direct affiliation between the two, there is no problem in saying that we are here. Of course, He Ming was an old acquaintance of Chang Haonan who had worked with Chang Haonan since the August 3rd Project. If he really followed the standards for receiving superiors, the atmosphere would become tense. Chang Haonans trip is to follow the working conditions of these two turbofan 10A machines on mass production machines. Naturally, it is impossible to talk about these pomps: Mr. He was joking, this time I came here to coordinate the first flight of the J-11B as the chief designer of the Turbofan 10, so I can just do the same as before. ?While chatting with the other party, Chang Haonan''s eyes were already focused on the assembly workshop in the distance. Before his rebirth, he also had a lot of dealings with the J-11B. It''s just indirect. For example, testing certain batches of small changes. In fact, when the previous J-11B entered service in 2009, it was already slightly behind the times. After all, the mainstream international fighter models at that time had basically completed the transition from the standard third generation to the third and a half generations. However, for China, the J-11B that has used the turbofan 10 engine since the second batch has truly entered the "third-generation aircraft freedom". Combined with sufficient range and bomb load, it finally allows the Air Force to deal with incoming attacks with ease. Sea and air pressure in several directions. ? It was also roughly from that time that the number of times certain old opponents condemned "unprofessional interceptions" skyrocketed, and the public was finally able to see their own fighters in the news frequently. Therefore, although the technical demonstrator of the J-20 was unveiled in 2011, taking away most of the attention, due to the production capacity of the third-and-a-half-generation and fourth-generation fighters, the J-11B will be classified as a fighter jet until 2020. The absolute main model. Now, Chang Haonan has advanced this time point by a full ten years. ?Even he himself is a little curious about what kind of chain reaction it will trigger. ??The apron of Beiling Airport is not large, and there is no need for a shuttle bus. The group of people walked towards the factory. In addition to the employees of Factory 112, Chang Haonan also saw several technicians from Liming at the scene This is also normal. When a new phone is released, a technical team must be in place to ensure it. Compared with the previous generation, the most obvious difference in appearance of today''s J-11B is the addition of a pair of 2,000kg heavy-load hardpoints under the inner side of the wings, as well as the addition of an aerial refueling device. With the arrival of several IL-78s and IL-78Ms, the Chinese Air Force finally has a relatively stable aerial refueling capability. Although the range of more than 4,000 kilometers after the replacement is basically enough, the more of this kind of thing is always better. Speaking of which, Mr. He, how is the progress of prototype 02? On the way, Chang Haonan suddenly asked He Ming next to him. Parked at the door of the workshop is the 01 aircraft that is preparing for its first flight. According to custom, the 02 aircraft is a static verification machine without equipment and only equipped with counterweights. Only after completing all, or at least most of the static tests, can the aircraft be allowed to perform relatively severe high-G maneuvers. This is also the part that Chang Haonan is most concerned about The matter of installing the turbofan 10 on the aircraft and flying smoothly has been carried out on two J-11WS verification aircraft for a total of thousands of hours. There is nothing to worry about. But the J-11B has a brand new body, which is fixed to the engine in a different way, and the new body also brings more extreme maneuverability and agility, so the focus is on examining the working conditions under harsh working conditions. Already made. He Mings answer is concise and concise: "When we started construction, we considered that the J-11B is an aircraft that only has changes in structural design, but the aerodynamic design is basically the same. The test flight process must be completely different from that of ordinary models, so we used two aircraft at the same time. Final assembly plan. Or rather, because Unit 02 does not need to install equipment, it even rolled off the production line a few days earlier than Unit 01. This is definitely an unexpected surprise. As He Ming just said, most improved aircraft have aerodynamic adjustments but little structural changes. He was previously worried that static verification would be a hindrance. The static test ?Chang Haonan''s tone was a little urgent. Basically completed. He Ming is also an aviation veteran, so of course he knows what Chang Haonan is concerned about, and pointed in the direction of the workshop door. So, when the J-11B took to the skies for the first time, it was a full-state prototype, and it had already obtained permission to fly in complex operating conditions. While talking, the group of people had already reached the vicinity of prototype No. 01. According to convention, several main types of training bombs or counterweight bombs will be carried during test flights. As for the J-11B specifically... Two thunderbolts 12 hung in the middle of the wings. The 612 Research Institute has determined the aerodynamic shape design of the new active ammunition. Although the live ammunition has not been tested yet, they have already sent the sample ammunition. He Ming explained. ??Perak 12 is no different from what Chang Haonan saw in his last life. If nothing else happens, it will form the main air-to-air bomb lineup of the Chinese Air Force together with the PL8 and PL11 for a long time to come. After walking closer, Chang Haonan suddenly discovered that there were actually two huge ammunition mounted in series in the middle of the air intake that he couldn''t see just now. Chang Haonan quickly stepped forward and patted the missile''s radome, but soon saw the Russian letters on the surface: Oh...it should be R33. ?The appearance of the two models is exactly the same, so it is not wrong to use a batch of training bombs previously prepared for the Persian F14. Thinking about the scene where the other party was eating hot pot and singing, and was suddenly empowered by a huge thunderbolt 13 flying over 200 kilometers away, Chang Haonan couldn''t help but reveal a slightly evil smile... (End of this chapter) Chapter 791 flexible fat man Chapter 791 The Flexible Fat Man In the afternoon of the same day, prototype No. 1121 conducted another long-distance taxiing test. The final first flight was scheduled for the next day. The test pilot was still an old acquaintance of Chang Haonan. Fu Guoxiang. Before boarding the plane, Chang Haonan went to the flight briefing room to chat with the other party. It was then discovered that the latter had been promoted to Air Force Colonel at this time. Considering his age, he is definitely making rapid progress. ??Seemingly noticing Chang Haonan''s eyes staring at the military rank of training uniforms on the hanger next to him, Fu Guoxiang said while arranging his flying equipment: It is my turn to be promoted this time because I have participated in enough test flights in recent years. I have flown almost half of the new model prototypes and verification aircraft in the army. ?Chang Haonan has never joined the military in his two lifetimes, so this is an area he has never understood before, so he asked curiously: I know flight time is very important to pilots, but do you also have assessment criteria based on the number of aircraft types? "Of course," Fu Guoxiang nodded and began to fill in the flight plan form while answering: "As for test pilots, those who can be selected are actually experienced veterans. There may not be much difference between 4,000 hours and 3,000 hours, but flying one more type of aircraft or one less type of aircraft often makes a difference. Its completely different. "For example, I have flown the J-8C, J-8IIACT, J-11A, J-11AM in the past four years alone, not to mention earlier times, as well as the F14, which has only been flown by less than five people in the entire army. I have experienced domestically produced, Soviet-made and American-made aircraft. Even in the profession of test pilots, there are very few people who have this kind of experience..." When talking about this matter, Fu Guoxiang''s tone was full of pride and excitement. In fact, in terms of model alone, there are quite a few Chinese test pilots who have flown aircraft from three countries. It is only the third type among them, and in most cases it is the legal model. When relations with the West were good in the 1980s, many pilots participated in training provided by the French Air Force and considered purchasing French aircraft. So, there are many people who have flown Alpha Jet, Mirage 2000 and Mirage F1. But F14, that is a rare thing. In other words, very few Chinese pilots have ever been exposed to variable-sweep wing aircraft. ?At ten o''clock in the morning, Fu Guoxiang got into the cabin of prototype No. 1121 and began the final inspection before takeoff. ?Next to him, a specially modified J-11AS fighter jet is also being prepared to launch under the wait of a group of ground crew. According to the plan, this aircraft will undertake accompanying flight and optical observation missions. This is a shotgun exchange for a cannon... ?In the command center, Chang Haonan put his hands into the sleeves of his cotton-padded coat and said while looking at the busy people and vehicles on the tarmac in the distance. He Ming naturally knew that this sentence referred to the plane used as a companion. There is no way, after all, the performance of the test aircraft model is getting better and better, and the old model often cannot keep up with the requirements. He Ming replied: "For example, during the first flight of the J-8C, it was accompanied by a J-6. Not only was the speed slow and the field of view was poor, but the key was that the range was too short. Now that this heavy-duty aircraft is on test flight, it is normal for two or three hours at a time. Damn The old models just cant keep up, and sometimes they have to be replaced. "So we just kept doing it. After the 03 batch of J-11AS, we arranged an extra one and kept it in the factory. In addition to being a companion flight, it can also be used to help our brother units test some new equipment and so on. After all, the aircraft Its big enough and easy to change. With a large number of orders from the Chinese Air Force and two big jobs from the Persian Air Force, Factory 112 is now fully worthy of being rich and wealthy. Furthermore, this kind of investment can also be considered a long-term investment. Although He Ming said that he was "helping" test new equipment. But if you put it into practice, it will definitely not be in vain. Especially in the past year or two, perhaps inspired by the continuous success of several self-funded projects from the J-7F, many factories have begun to figure out how to use their own initiative without military orders and develop some for the international market. product. And these things are obviously impossible to test with air force platforms. Then, Factory 112 can make a fortune from it. Moreover, the harvest can be guaranteed despite droughts and floods ?Its like during the gold rush, the gold diggers may not make money, but the people who make the gold diggers money will definitely get rich. So...has anyone approached you for testing? Chang Haonan asked curiously. ?This question elicited a moment of silence. Well not yet. He Ming sighed first. But he quickly regained his composure: However, I think there will definitely be some in the future. ?While the two were chatting, the No. 1121 aircraft driven by Fu Guoxiang had already moved along the taxiway to the take-off preparation position. Prototype No. 1121 has been inspected and can take off Day after day, the conversations between pilots and towers are almost the same, so dull that they even feel a little boring. But for the staff here, they would rather be bored like this for their entire careers. After all, if test flight work becomes exciting, it is generally not a good thing... From the perspective of the tower, Chang Haonan could see that equidistant horizontal lines were drawn on the side of the runway, which should be to visually indicate the takeoff or landing distance of the aircraft. A row of people standing in front of the window almost invariably stared at the rear wheel of No. 1121. Just after crossing the sixth line, the plane lifted off the ground lightly. "good!" ?He Ming held a telescope in one hand and waved his fist in the air with the other hand. This line is 50 meters? ?Chang Haonan probably had a guess. The structural weight of the new airframe is already low. In addition, the original N001 radar, which was earth-shattering in size, was replaced. Therefore, the empty weight of the J-11B that actually rolled off the production line is a full 800kg lighter than the old model. Even with the size of a twin-engine heavy fighter, this is not a negligible number. Therefore, the take-off distance will definitely be improved compared to the J-11WS verification aircraft which just changed its engine. Thats right. He Ming nodded. At this time, Unit 1121, which was off the ground, had already begun a nearly vertical climb. ?Of course, the vertical climb itself can be completed even by the old Su-27SK. but. ??This aircraft went from nearly horizontal to its nose vertically upward, but it was extremely fast. It even gave Chang Haonan the feeling of watching the first flight of the J-10. You must know that the latter is an aircraft with a canard layout and is inherently equipped with a nose-up moment. ??In order for the J-11 with a conventional structure to raise its head, it essentially needs to act like a seesaw, allowing negative lift to push the horizontal tail downwards. Taking into account the total lift issue, this efficiency is generally designed to be conservative. The larger the aircraft, the more obvious this situation will be. ?This is why heavy fighter jets like the F15, Su-27, and F14 still feel a bit bulky despite their stronger thrust-to-weight ratio. Because mobility and agility are inherently two levels of performance. After using the new body, agility, the original biggest shortcoming, has obviously been strengthened to a certain extent. Even Fu Guoxiang in the cockpit was shocked by the exaggerated speed of raising his head. "interesting" ? He ??stared at the altimeter in front of him until the number on it read 02500, and then leveled the plane. About 20 seconds later, the J-11AS responsible for the accompanying flight also climbed to the same position. Prepare to perform test flight subjects. Fu Guoxiang reported on the radio. According to the test flight plan, the first to be carried out are more than a dozen regular projects, mainly testing the basic flight capabilities of the aircraft. ?However, thanks to the J-11s ultra-long range, there is no need to return immediately after this process. You can continue with other subjects instead. ?Of course, since this is the first flight after a major structural change, it is impossible to directly fly to a particularly high intensity. But there is one item that Fu Guoxiang is very interested in. Half an hour later, Fu Guoxiang, who had completed a circular flight, set up the plane again and returned to the sky above Beiling Airport. ?He leveled the plane completely, then pushed the throttle slightly, gradually accumulating the speed to a high subsonic speed of 950km/h. ?On the oldest model of the Su-27SK, due to structural strength issues, the flight performance in the entire transonic range will be limited to a low level by the flight control. By modifying the flight control, the J-11AM has accurately restricted the speed range to two 50km ranges. ?However, because the hardware has not changed, there are still flaws. However, the second-stage upgraded airframe used by the J-11B/Su-27SM plans to completely eliminate this hidden danger in terms of hardware. After confirming that the speed reached the test standard, Fu Guoxiang jerked the lever to the right - The familiar feeling of spinning around came. The aircraft begins to roll. As a test pilot, Fu Guoxiang can still remain absolutely awake even in this environment. 7.6 seconds. After three consecutive rolls, Fu Guoxiang looked at the timer. 7.6 seconds, three laps, 1080. A roll rate of almost 140/s. It is clear. Upgrade, effective! (End of this chapter) Chapter 792 Need early warning aircraft Chapter 792 Need for early warning aircraft A roll rate of 140 per second is not an astonishing number if placed within the entire range of a fighter jet. The F16 Mirage 2000, which is far away, and the J-10 and Rafale, which are close by, all far exceed this number. The high ones can even reach more than 300 per second in the net configuration. ?However, it is obvious that these aircraft are designed to be highly agile. For a heavy fighter that is not good at this - in fact, it has always been a shortcoming in the past, this number has improved quite significantly. All of this was recorded by the J-11AS flying slightly behind. 1121, your roll is very fast, and the rolling process is smooth, almost no height loss, very good. Even top test pilots need to take a break between two test flight subjects, so the two planes in the sky are taking advantage of this time to communicate via radio. I feel that this has not reached the limit of the strength of the aircraft body, but I am afraid that flaperons alone cannot provide a higher rolling moment. Fu Guoxiang''s voice was mixed with a slightly rapid breathing: Ill turn 180 first and try increasing the speed by 100. At the same time, as the first rolling test ended, there was a burst of applause inside the tower. Although todays wireless data transmission efficiency does not support processing high-definition images, by integrating an additional set of antennas and sensors inside the prototype, some basic flight data can be transmitted back to the tower in real time. ?This improvement is actually indispensable for a smooth test flight, but if there is any malfunction or even an accident during the test flight, it may become the key to solving the problem. ?Although this kind of thing has not happened for several years, everyone still has to keep this string in mind. ?Aviation safety, if it is relaxed even a little bit, will most likely lead to a landslide. Mr. He, it seems that your body structure upgrade has been very effective. Chang Haonan looked at the flight parameter curve displayed on the screen in front of him, and his tone became much lighter. Although He Ming next to him looked as calm as water on the surface, the corners of his mouth that were suppressed by the general when he spoke still revealed his inner excitement: We have actually determined the effect of the upgrade of the airframe structure before. Now that we can implement this theoretical effect, we have to thank you, including Mr. Chang, for providing us with new technologies and new processes for Project 11. ?His statement is of course not entirely false. The Su-27SM, which uses the same airframe next door, made its first flight more than half a year ago, verifying the effectiveness of this configuration. In addition to the improvement in structural strength, which relieves the restrictions on roll at the flight control level, more importantly, the length of the flaperon in the new configuration is significantly increased, almost occupying the entire trailing edge of the wing, so it can be more active Participate in rolling. But the design is the design, and the object is the object. ?Otherwise, the planes built by Stan Aeronautics would not be so uncomfortable. ??For China, which has just completed the production of the basic model Su-27SK, it is already very rare to have no problems after a major structural and process upgrade. "Actually, Lao Fu feels that there is no problem. In terms of structural strength alone, this aircraft actually has a lot of room for improvement. I heard that Sukhoi is working on installing the AL31FU on a Su-27SM prototype. Let''s try it. Where is the limit? AL31FU is the engine used by the No. 711 technical demonstrator. Compared with the AL31F, it has increased thrust and, more importantly, has thrust vector control (TVC) capabilities. The body of the Flanker is inherently large, and the two engines are installed far away from the central axis, so the moment of inertia is very large. In the past, the main factor that restricted the increase in roll rate was structural strength, so this problem was not very obvious. Now, as Fu Guoxiang said, flaperons alone can no longer meet the requirements. ?However, everything has two sides. ? ? If a TVC nozzle is installed, then the original simple burden can provide rotational torque in one turn. In this case, the engine position is far away from the center line, which actually becomes an advantage.?????Take it step by step. ?Chang Haonan put his hands behind his back: After the Turbofan 10 is completely finalized for production, upgrading TVC capabilities will definitely be put on the agenda. ?Thrust vector is not necessarily of much use. But something is better than nothing. For a high-thrust engine, the thrust-to-weight ratio will not be lost much, and the TVC nozzle will not consume life when it is not working. As long as you use it once, you will earn blood. ?However, the priority can indeed be slightly further back. After all, China has never accumulated technology in this area in the past. It is not difficult to create a rotatable nozzle. What is difficult is to write this thing into the flight control. He Ming didnt press for it, he just mentioned it in passing, so everyones attention quickly returned to the display screen. After the first test, Fu Guoxiang conducted several more tests in the transonic range with steps of 100km/h. ?As the speed increases, the efficiency of the flaperons on the outer wing sections will decrease, so the roll rate will inevitably be affected. However, even at the lowest speed of 1350km/h, it still maintains a level of about 60 per second, which is far higher than before the improvement. It seems that the four simulated mounts have not a great impact on the performance of the aircraft..." He Ming touched his chin and nodded, obviously very satisfied with the test results. This is also the inherent advantage of Su-27. Chang Haonan replied: "When Project 11 was just started, 601 also studied whether to consider setting up a conformal fuel tank between the two engines to further extend the range. However, after later research, it was found that the gain outweighed the loss, so you have not seen this plan. A set of aerial oil receiving devices has been added. The Flanker''s fuselage puts the best hanger position between the two air inlets in the middle of the fuselage. This is a low-pressure area, so the resistance is very small. It is generally chosen to hang large-size ammunition here instead of under the wings. ? ? If four medium-range bombs of the size of R77 or 12 are mounted in parallel, the impact on flight performance will be almost negligible. While the two were talking, the data on the screen also showed that prototype No. 1121 began to slow down and returned to level flight. Todays test content has been completed and its time to return. Mr. Chang, according to the current progress, the basic flight performance test will probably be completed soon. ?He Ming suddenly said: The next step is to wait for the delivery of the PL-12 and PL-13 test bombs, and then conduct the testing of the airborne avionics and fire control systems. Thunderbolt 12 should be fine. The 1493 radar itself can cover the entire envelope. But if we want to test the Thunderbolt 13, we may need an early warning aircraft to provide additional target information at a longer distance. Compared to TVC, which was just mentioned casually, this matter is indeed more important. This is true both for the Pili 13 and the entire Chinese Air Force. The ring project can no longer be counted on. I heard that the Davidian side has even begun to prohibit technicians from the 14th Institute of Electrical Engineering from approaching the aircraft. Chang Haonan put on his coat and walked outside, preparing to greet the triumphant test pilot, and said to He Ming, who was half a step behind: However, the Air Police 200 that made its first flight at the beginning of the year has now been equipped with a real radar array. If no major problems are found in the electronic equipment and data link, it will definitely be able to catch up with your test firing and target shooting. (End of this chapter) Chapter 793 How about letting the French be the guinea pigs? Chapter 793 How about... Let the French be guinea pigs? ??Due to the existence of the J-11WS verification aircraft, even the undercover party lurking near Beiling Airport would have a hard time telling with the naked eye that the No. 1121 prototype is a brand new model. Hence, the arrangement of the entire test flight process is relatively low-key. ?Before the celebration banquet in the evening, Chang Haonan led the on-site turbofan 10 support technical team to remove the memory that recorded the working conditions of the aviation engine. Soon, the relevant data was organized into the already designed software program. Look at the data from the deformation sensor on the outside of the ring casing. ?Chang Haonan stood behind the operator, eyes fixed on the computer screen, and asked. Each test flight generates a massive amount of data, and it is impossible to analyze each item in detail. ?For example, the basic working status of the engine has been verified in the previous bench test and installation test. As long as the data is within the normal range and there are no alarms, there is no need to conduct in-depth analysis again. After the turbofan 10 was installed on the J-11B, Chang Haonans main concern was the vibration during flight and the strength of the engine itself In order to adapt to this upgraded body, the fixing method and supporting position of the engine have been changed. According to calculations and Su-27SMs previous testing of the AL31F, these modifications should not affect normal operation. However, the specific degree of adaptation still needs to be seen from the data to know. Soon, the deformation curves of several key points appeared on the computer screen. It should... be much better than expected? Liu Yongquan, who was standing on the other side of the operator, was half-bent, almost putting his face in front of the screen. After all, the shape of the vibration curve is thin, dense and fluctuating, which is really not friendly to a middle-aged person who is a little dazzled. Well at least thats how it looks in terms of amplitude. The operator nodded and replied: The maximum displacement did not change significantly over time. It only fluctuated slightly during the intermediate flying roll, but it still only reached..." Speaking of this, he enlarged the data curve: It has reached 23% of the allowable deformation corresponding to the G value. Hmm...it seems that the previous strength margin was a bit too much. ?Chang Haonan touched his chin and hesitated. ?In the field of aviation, when it comes to structure-related things, stronger is not always better. Including static damage tests on aircraft, the greater the force it can withstand, the better. Instead, reduce redundancy as much as possible while meeting the design. Because this is the most direct way to lose weight. Compare the waveforms at different locations to see if there is any risk of resonance. ?Chang Haonan''s tone was calm, and no emotion could be heard. ??This time it took a little longer than before. After all, for computers in this era (even supercomputers), the amount of data to be processed is really not small. Fortunately, the final result is no risk. Although there are still greater overload conditions that need to be tested in the future, Chang Haonan still breathed a sigh of relief. Perhaps we could consider doing some work on the receiver wall? Liu Yongquan next to him also stood up straight again and asked Chang Haonan: For example, changing to a thinner shell and adding stiffeners to maintain strength can reduce at least a hundred or ten kilograms of weight. When I was making design plans before, I remember that a group had done research in this area. This is not urgent at the moment. Chang Haonan waved his hand: "Not to mention that our research on the thin-walled structure of the receiver is not sufficient. Even if it is designed, the diamond-shaped ribs will still require large-area precision milling of the receiver after casting. We do not have such a large volume on hand. The milling machine does not have the relevant milling processing technology. The rush to adopt new technologies may affect the mass production progress of the turbofan 10. " In this timeline, China has not purchased the 124 Su-300MKK/MKK2, so there is a huge demand for domestic third-generation aircraft in the short term. In addition, the Turbofan 10 is the first key model to enter mass production after the establishment of the Aerospace Power Group. Hence, when the performance of the engine itself meets the requirements, the highest priority work at present is to put it into production as soon as possible. No matter how beautiful the group''s annual report is, it is not as convincing as delivering the J-11B and J-10A equipped with turbofan 10 to the troops as soon as possible. As I said before, superiors also have to face pressure when making drastic reforms. As one of the biggest beneficiaries of the reform, the Aerospace Power Group needs to give feedback and confidence to its superiors as soon as possible to prove that their decision is correct. But. ????After a short pause, Chang Haonan changed the topic again: Research in this area can be continued with some funding. When we really develop the fourth-generation aviation engine, it will definitely be used. Chang Haonan stretched his muscles as he spoke. At this moment, an idea suddenly came into his mind. When designing the turbofan 10 before, many new technologies were verified on the turbofan 9. However, after the design of the A/B models of the Turbofan 10 is finalized, there is a high probability that there will not be a Turbofan 9 in the country that can be used for practice. But the east is not bright and the west is bright It seems that there is no solution. You can try it on M88 Liu Yongquan, who was putting on his coat, naturally heard this sentence. He asked with some curiosity: I heard some time ago that the French seem to have no sincerity and have been delaying time? Chang Haonan smiled and shook his head: This was indeed the case at the beginning, but recently their attitude has turned 180. They have already talked to us about specific ways of cooperation. They probably want to take advantage of Chinas self-respect. As a result, the Americans ignored them at all. Dassault and Snecma approached Huaxia to cooperate in the development of turbofan engines because the former did not keep it secret. Therefore, let alone Liu Yongquan within the Aerospace Power Group, even the outside world has already had various rumors and discussions about this matter. . Its just that because the source of the news is on the other side of the ocean and the statement is not clear, most people directly guessed in the wrong direction They all thought that it was similar to the situation with the turboshaft 8 in previous years. The French wanted to transfer the technology of the M88 engine to China. However, there does not seem to be a model in China that requires high-performance mid-range propulsion as power. Hence, the direction of the discussion quickly turned to the possibility that China would develop new models. At this point, it has nothing to do with the real world. ??Speculations range from the final overhaul of the J-8, to the enlarged version of the J-10 with dual mid-range thrusters, to the possibility that China will develop a medium-sized fourth-generation aircraft... In short, it is getting more and more outrageous. Not to mention, although it is all just guesswork, Zhang Liangpings weekly public opinion briefing to Chang Haonan contained an imaginary picture of a dual-engine J-10, which is really similar to the second version of the J-10 prototype currently being manufactured. There are so many similarities... "If this is going to happen, it would be better to let the French be the guinea pigs." Liu Yongquan said as he opened the door to Chang Haonan, and then the two of them left the computer room together: "I have seen some photos of the M88 at air shows before. Judging from the parts that can be seen with the naked eye, the overall design is relatively conservative, but it should be that a lot of effort has been made in materials, so the temperature in front of the turbine is claimed to be very high, leaving It gives us a lot of room to play. ?This judgment was similar to Chang Haonan''s previous thoughts, causing the latter to turn his head and look at Liu Yongquan, and then suddenly slowed down. Liu Gong. After a few seconds, Chang Haonan suddenly said: If M88 can be successful, considering the research and development experience, the main body of foreign cooperation must be your 606 institute. So, based on your personal wishes, after the turbofan 10 completes the finalization process, do you want to continue to develop improved models or aeroderivatives, or do you want to help Snecma optimize the M88? This question directly stopped Liu Yongquan. ?He didnt even think about it. When Liu Yongquan had just joined the newly established Taihang project as the deputy model chief engineer, Liu Yongquan had even prepared to "dedicate the remaining twenty years of his career to this model, as long as he could see it mass-produced and installed before retirement." psychological preparation. After all, Chief Engineer Chang Haonan is younger than him. It is obviously not possible to retire the Chief Engineer and then take over as Chief Engineer like most of his predecessors did. As a result, plans cannot keep up with changes. ?? Before he could mentally prepare to be a deputy chief engineer for the rest of his life, the thing that needed to be considered had already become "What are you going to do next after the Turbofan 10 is finalized?" Continuing to work on the Turbofan 10, he is familiar with the road. With the design foundation of the "3.75-generation core machine" laid by Chang Haonan, there will not be too much risk. But to say that I am not interested in M88 is definitely false. "never mind." Chang Haonan waved his hand: "There''s no rush at this moment. You can consider this issue first and just give me the result before the end of the year." (End of this chapter) Chapter 794 Too much bullying Chapter 794 Bullying goes too far At the same time that Chang Haonan was intensively promoting the turbofan 10 test work. Eastern coast of the Mediterranean Sea, Jaffa. ? David Aircraft Industries (IAI). Lu Jinwenzheng, the person in charge of the final assembly task of the Ring Project, and his deputy Sui Dongxing were squatting at the window of a stairwell. ?The former even held a small monocular telescope in his hand. They were observing a workshop about 500 meters away attentively. With the sunlight shining in from the east, Sui Dongxing could see through the telescope a huge IL-76 transport aircraft parked in the workshop. Densely packed climbing frames are also installed around the aircraft. But no one is working on it or around it. In fact, the modification work on this aircraft has been stalled for more than a year. Recently, they, the Chinese technical personnel, were directly prohibited from approaching the aircraft. By this month, even permission to enter the workshop had been revoked. ??As long as a Chinese face approaches there, the sentries standing guard at the door will step forward to drive them away. Considering that we are on someone else''s territory now, there is definitely no future for breaking in. Therefore, in order to observe the situation inside the workshop, I came up with this strategy. Mr. Lu, even if you have to stare at the opposite side, you dont have to come so early in the morning, right? Sui Dongxing held a camera in his hand and yawned while speaking, obviously not fully awake: That plane cant suddenly run away, we just need to prevent them from causing damage. Of course you cant run away. ?Lu Jinwen didnt even put down the telescope: "But Lao Song told me before that he heard a few people from the Kingdom of David chatting yesterday. It seems that there will be foreigners recently... which means people from the fourth country besides us, Russia and the Kingdom of David. Come and see this plane. The name of Lao Song in his mouth is Song Haoqiang. He is the only person in the entire team besides the translator who can speak Hebrew and Arabic. But he never exposed this. ?Hence, we often hear important information coming from people who are not cautious enough. "ah?" Sui Dongxing almost jumped up from the ground when he heard this, with an angry look on his face: What the **** is this happening? You must know that in the initial plan, the products of the Ring Project will become the absolute core of the Chinese Air Force''s operations in the next 20 years. Even though things have developed to this point, anyone with a discerning eye can see that this trilateral cooperation project is definitely on the way out. But at least legally speaking, this is still an unfinished state. ??Now its just a matter of not letting the Chinese side have access to the plane, and why not bring people from other countries to see it? If you can bear it, you can eat shit! No wonder Sui Dongxing was so emotional. ?In the past few months, they have received too much scorn from the Kingdom of David. Keep your voice down. ?Lu Jinwen quickly patted Sui Dongxing next to him. Although what the two of them are doing now cannot be considered espionage, it would not be a good idea if they were discovered. After the latter squatted back in front of the window, Lu Jinwen lowered his voice again and said: So today I am going to get the evidence that they violated the contract and privately led unrelated people to contact the prototype of the ring project. This way, when we fight in the future, we will have more chips in our hands. ??As the project vice president and on-site person in charge, Lu Jinwen has actually known for a long time that the country has given up its expectations for the ring project, so he has now begun to prepare for the international lawsuit that is destined to be a long-term dispute. ?While the two were talking, several black luxury cars filed in from the internal road next to them. After turning a few turns, they finally lined up at the entrance of the workshop. Obviously, the news Song Haoqiang heard was true. Quick, get ready to take pictures! ?Seeing this scene, Lu Jinwen quickly signaled Suidong Xing to get down to business, while he continued to stare at the situation in the distance with his telescope. ??More than a dozen people dressed in different clothes got out of the car one after another and shook hands with the IAI leadership who came to greet them. Unfortunately, it is impossible to hear what they are saying here. Which country is this guy from? Is he white or black? ?Lu Jinwen frowned and muttered to himself in confusion. When those cars appeared just now, he had actually thought about many possibilities. But the brain is still a little down at this time. "let me see" The camera next to Sui Dongxing had a large magnification, but it was difficult to see clearly through the viewfinder, so after pressing the shutter several times, Lu Jinwen and I changed hands. But soon he also encountered difficulties: Hmm Hes not from Africa, right? It actually looks a bit dark, but not particularly dark? "Most of the people on the southern coast of the Mediterranean in North Africa are white people. If you''re talking about sub-Saharan Africa... I don''t think they would be interested in early warning aircraft, right?" ?Lu Jinwen took over the task of taking pictures and was taking pictures in succession. Suddenly, he noticed that another man wearing a strange-looking turban got out of the car in the middle. Fuck, I know! ?He first slapped his thigh, and then quickly raised the camera again to take a picture of this man shaking hands with the general manager of IAI. Indian? Sui Dongxing next to him also made a guess.?????"Eight or nine are inseparable from ten." ?Lu Jinwen nodded: I heard that they had some conflicts with their neighbors in the first half of the year. Although they won in the end, the air force suffered heavy losses. It may be that they learned from the experience and prepared to build early warning aircraft. But if you need it urgently, why not buy it ready-made? ? Sui Dongxing is a bit strange. "Hey, you don''t understand this. I''ve been in contact with them before. They have high ambitions but low intentions. I must think that the E3 and A50U are too old, so I came to buy the active phased array system of Falcon. It just happened. There is another semi-finished product here that is half-way through, and it will definitely arrive faster than starting from scratch. ?Lu Jinwens analysis is obviously very reasonable, and Sui Dongxing was immediately enthusiastic after hearing it: Holy shit, they want to give our plane to someone else? Then we must contact the country quickly and make a clear statement to protest against this behavior! The former is much calmer: "That''s not the case. We signed a contract with Beriev for this aircraft, and asked them to directly select an old aircraft in good condition and send it over. Because the project has been stalled, the final payment is still due. Its not finished yet, so lets not talk about whether David dares to give it away, even if he dares, the Indians probably wont accept it. I estimate that they still want to sell the plan of converting the Il-76 into an early warning aircraft, so they brought Indians to actually visit it. ?The main equipment of the Indian army is basically imported from Russia, and it will definitely not conflict with Beriev over such a trivial matter as an IL-76. ?At this time, the two groups in the distance had finished their greetings and walked into the workshop together. ?Lu Jinwen took a few more photos, then raised his head and said: However, what you just said is right, we must contact the country. He said, clenching his fists: "No matter what, this aircraft is our property, and the ring project is also a project jointly developed by my country and IAI. They want to directly transfer the results to a foreign country, and it is a country that is in conflict with us. It is simply too much. ! Sui Dongxing, who had been waiting for this sentence for a long time, stood up immediately: Then I will contact the embassy in Jaffa and ask them to convey the photos and news back! Lets go together, the telegram should require my signature. ?Lu Jinwen said and put the camera away. But after thinking for a moment, he pressed the shutter button continuously and took all the remaining pictures on the film. The buzzing sound of the rewinding motor sounded. "this" Sui Dongxing next to him was confused for a moment, but he immediately understood Lu Jinwen''s operation. This is to take out the film. Just as he expected, Lu Jinwen quickly pulled out the film from the camera and carefully hid it in his belt. Finally, I replaced the half-used roll of film in the camera. After a series of operations, the two of them pretended to be nonchalant and left the building. Sure enough, at the gate of the IAI factory, they were stopped by an officer with the rank of lieutenant. Sui Dongxing was so angry that his scalp was beating with anger. Although he kept telling himself to be calm, his tone could not help but be a little aggressive: "anything?" ?The other party looked at the travel bag and camera bag the two of them were carrying, and said in somewhat stiff English: According to regulations, before you leave the top-secret area, I need to make sure that you are not carrying any classified information. When was there such a provision? Even though he had already made preparations, in order to act more realistically and to argue with reason, Lu Jinwen still asked: We have left the factory before, but we have never been searched. In fact, their personal belongings were all reported. When they brought the camera in before, the other party did not take care of it at all, indicating that there was no requirement in this regard. ? Even if there is one, it is unlikely to involve the entire factory area. The notification came down just yesterday. The lieutenants English accent is a little stiff: If you refuse inspection, you cannot leave here. At this time, two armed guards not far away also took a step forward. Obviously, this is non-negotiable. The two of them pretended to be helpless and threw the three bags on the table: Hurry up, were in a hurry. One of the guards took out the contents one by one and put them on the table for inspection, while the lieutenant began to search him. Fortunately, the location where Lu Jinwen hid his things was concealed enough and no clues were discovered. At this time, the guard also picked up the camera and tried to open the back cover. ??If the unfinished film is opened directly under the light, it will be directly exposed and invalidated, so Sui Dongxing directly reached out to try to stop it. Cant open it. If you open it, it will be exposed and you cant use it! But the guard had no intention of letting go. Finally, although Sui Dongxing had an angry look on his face, he still reluctantly let go. ?The other party pulled out the film and threw it aside, only returning the camera to the two of them. Out of anger, Sui Dongxing cursed in Chinese. ?Of course no one except him and Lu Jinwen can understand it. Can we go out now? ?Lu Jinwen showed relative restraint, but there was obviously anger in his tone. The lieutenant nodded and signaled to the guards behind him to let him go. Sui Dongxing obviously wanted to take the opportunity of acting to vent, but was stopped by Lu Jinwen, who was worried about the long nights and dreams. The two of them just walked out of the gate of IAI. (End of this chapter) Chapter 795 Circle Project, Finale Chapter 795: Ring Project, Finale While Lu Jinwen and Sui Dongxing were rushing to report the situation in the Kingdom of David to the country. Within the IAI factory area. ?Hindustan Airlines Senior Engineer Abhinav Bhargava and Air Force Deputy Chief of Staff Lieutenant General Bhadauriya walked into the assembly shop surrounded by several senior IAI leaders ??Although the Air Force''s performance in the Kargil conflict in the first half of the year was a disastrous defeat, thanks to the more abstract performance of the Pakistani Army, the Indian side still achieved victory from the perspective of the entire war. You know, Indians can be happy even if they lose, let alone if they actually win. Therefore, in the final discussion of merit and rewards, the Air Force, which had no merit but hard work, still got some soup. ??At that time, Badaulia, who agreed with Chief of Staff Admiral Klimpa''s early warning aircraft plan and finally proposed to purchase the Falcon system from the Kingdom of David, naturally became the former''s deputy. Although in terms of level, the Chief of Staff of the Western Air Force Command and the Deputy Chief of Staff of the Air Force are the same, even the offices of the two places are only less than 50 kilometers apart. But obviously the latter has higher gold content. As a condition for being transferred to the core circle of New Delhi, the first task Bhadauriya received after taking office was to be responsible for the entire early warning aircraft procurement plan. An absolute hot potato. ??If the interests of the various parties involved are not well balanced, then his position as deputy chief of staff may not even sit well and will need to be replaced. Even if the balance is good, if something goes wrong in the future, he, as the executor, will most likely be thrown out as a scapegoat. But now that the matter has come to this, he really has no choice. ?Dr. Bhargava was the previous technical deputy director of the HS748AEW&C early warning aircraft project. Since the technical director died in the crash of the HS748 prototype, he could only be responsible for examining the compatibility level of the Falcon system and the IL-76 platform. ?After adapting to the slightly dim environment in the workshop, the first thing Bhargava and Bhadauliya saw was naturally the IL-76TD transport aircraft that even had a radar bracket installed. Looking at the huge machine in front of him, Dr. Bhargava showed a little envy in his eyes. Compared with the HS748, which has a take-off weight of only over 20 tons and can only be used as a dojo in a snail shell, the Il-76 can obviously provide engineers with more room to display. At least you dont have to worry about the radome completely blocking the vertical tail, causing the aircrafts directional stability to be almost completely lost. ?However, Bhargava did not seem to take into account that the reason why Stan Airlines chose HS748 was obviously not because it did not want a larger platform. But there is really no ability to carry out structural modifications on 200-ton large aircraft... Has the design of this aircraft been finalized? Badaulia, who was next to him, didn''t pay attention to the doctor''s emo, but was directly concerned about the most important issue. "certainly." ?Mor McCoy, the head of IAI who was in charge of the reception, immediately replied: "The entire plan itself was designed by the Beriev Group with reference to the A50 early warning aircraft. It is considered a very mature plan. However, the airborne equipment was replaced with the EL/W-2090 radar developed by Elta Company, and the operating terminal and command system were also modified. Upgrade accordingly. ??As he spoke, he pointed to a set of phased array antennas placed on the other side of the workshop, and then continued to add: Except for being slightly smaller in size, the technical solution of the phased array antenna is exactly the same as that of the Falcon early warning aircraft, but according to the design plan, we will arrange three sides in a triangle in the radome, so there will be no detection dead spots. Lieutenant General Badauliya walked over quickly and took a closer look at the packaged antenna. ? It is of course impossible to see anything with the naked eye, but in any case, it is definitely much better than the industrial waste produced by Bharat Electronics Co., Ltd. A week later, Chang Haonan returned to the capital after his work in Shengjing came to an end. ?Like before, after getting off the plane and packing up briefly, the first thing I did was to go straight to the Commission of Science, Technology and Industry for National Defense to report on my work. Speaking of which, he had not been there for several months after the Aerodynamic Group was officially established. I feel a little nostalgic when I think about it. ??When Chang Haonan arrived at the Science and Technology Commission, Ding Gaoheng was already waiting for him in the office as usual. Director Ding. ?Chang Haonan knocked on the door and entered the house. ?However, Ding Gaoheng did not start talking about business immediately. Instead, he smiled and joked: I heard that last month, Xiao Chang, you won a victory in the public opinion circle? As he said this, he motioned to Chang Haonan to find a place to sit. ??The incident of using public opinion to counterattack the Nancheng Daily was a bit long ago now, and to be honest at the time, it was just a matter of convenience. Therefore, Chang Haonan was stunned for a moment before he realized what Ding Gaoheng was referring to. Wellits just a coincidence. He waved his hand: Originally, I am actually a very easy-going person. Normally I would not be prepared to do anything about this matter, but as a result, the Nancheng News group had to take action. Speaking of this, Chang Haonan looked sad: "They criticized our Torch Laboratory for wasting scientific research resources, but my paper was published in the journal just a week later. There was no other way, so I could only reluctantly target them..." Ding Gaoheng did not speak directly after hearing this. He just looked at Chang Haonan, who looked harmless, with an expression of "I believe you just saw a ghost." ?However, he had long been unhappy with the people in the Nancheng Newspaper, but he just went out and cursed in the street due to his status. ?This time someone was able to vent his anger and make the other party feel weak, and it was too late for Ding Gaoheng to be happy. ??? I just mentioned this matter just to have fun again. ?Now that the fun is over, its time to get back to the topic. So, he regained his serious expression: Is the situation in Shengjing going well? "all the best." ?Chang Haonan also calmed down his expression: "The test flight of the J-11B, and of course the final stage of testing before the design of the Turbofan 10 is finalized, are all proceeding according to the schedule. We have currently frozen the technical plan for the Turbofan 10A. Unless any particularly important problems are discovered, we will Carry out small-batch mass production according to the current technical status, and then transfer to formal mass production after the production is finalized. As for some new technologies that have only recently completed research and development or are still in the process of research and development, they will be reflected in the future improved turbofan 10C. One generation of mass production, one generation of R&D, and one generation of planning. This is a standard set by many projects to ensure a fast enough iteration speed. Although this principle is widely known as a military industry slogan, in fact, the iteration speed of most military products does not meet this requirement. At least in the late 1990s, this would not be enough. However, under the leadership of Chang Haonan, Hangfa has indeed achieved this. ?For example, now, we are mass-producing the turbojet 14, developing the turbofan 10A/B, and planning a deeply improved version of the turbofan 10. "very good." Ding Gaoheng nodded with satisfaction. In his impression, the news that Chang Haonan brought back seemed to be like this every time. Slightly boring and smooth. ?Of course, he would rather stay like this forever. Is there anything else you need help from the organization? With such a subordinate, Ding Gaoheng''s duty is to be a good nanny. It really does. Chang Haonan is not polite: "According to the plan, one of the main weapons of the J-11B will be the PL-13, which is an air-to-ground dual-purpose missile using the R33 missile body and replaced with our own active and passive composite seeker. However, if we want to test The ultimate performance of this missile requires the assistance of an early warning aircraft to at least provide the carrier aircraft with a rough target location. " Furthermore, testing the air-to-air anti-radiation function also requires a real early warning aircraft as a target drone (unmanned target drones cannot provide sufficient signal strength). ?Of course it is impossible to actually shoot it down, but to make sure the seeker is working properly before letting the missile self-destruct. ?However, this matter still sounded a bit risky, so Chang Haonan did not dare to talk to Ding Gaoheng for the time being. Afraid of scaring old comrades. So, it is best to speed up the research and development progress of the Air Police 200. Chang Haonan said. To speed up the progress of research and development, just shouting a few words is definitely useless. So, this is actually asking for money tactfully. The test flight of the Air Police 200 went smoothly, and a large amount of new funds will be injected next year, so the progress should be very fast. Ding Gaoheng naturally understood what Chang Haonan meant. Fortunately, the Science and Technology Commission has now formed a virtuous cycle, allowing superiors to fully appreciate the terrifying profit rate of return in high-tech industries, so funding has been much looser than in previous years. ?However, immediately afterwards, Ding Gaoheng''s face suddenly darkened: Speaking of early warning aircraft, Xiao Chang. He opened the drawer and took out an envelope: Here are some photos, which were sent back from Jaffa by the comrades in charge of the ring project. After speaking, he pushed the envelope in front of Chang Haonan. In fact, as a reborn person, Chang Haonan can probably guess what happened even without looking at the photos. After taking out the photo, it was exactly as he expected. ?That typical South Asian skin tone, and the iconic turban one of them is wearing. I think its pretty good. It seems that the Kingdom of David is determined to sell the results of the Ring Project to others? In front of Ding Gaoheng, he still had to show a little shock. "Um." Ding Gaoheng replied: Not only that, our technical staff stationed at IAI were even rudely searched by the IDF. These photos were all brought out through special means..." In the next ten minutes, Ding Gaoheng told Chang Haonan about the experiences of Lu Jinwen and Sui Dongxing that day. "grass" Chang Haonan had only known the general direction of the ring project before and was not aware of these details. ?Now that I heard it for the first time, I felt like I was getting angry. After all, since my rebirth, I have rarely encountered such a heart-warming thing. So...what did IAI say? ?As he asked, he was thinking about whether there was any way to get revenge that would not cost too much. These photos are still devastating. Ding Gaoheng replied: If we announce it, Im afraid they wont be able to do business with the Indians, so the preliminary plan reached so far is to take a step back. "IAI will refund the US$250 million we have paid for the goods, pay the final payment for the aircraft and design plan to the Beriev Group on our behalf, and then compensate us for 15% of the purchase price paid by India. In exchange, We will no longer hold Circle Engineering responsible for breach of contract and will not make these photos public. At this time in 1999, India was still under sanctions for previous nuclear tests. ?Although there was no real impact, everyone tacitly agreed on what to do almost at the same time. But at least the arms transactions, such as the J-7F delivered by China to the Pakistani army and the advance payment of the Su-30MKI by India to the Irkutsk manufacturing plant, were all carried out secretly with tacit understanding. ?At this juncture, if the news of IAI''s large-scale sale of strategic weapons such as early warning aircraft leaks out, the impact will be quite bad. ?David''s kingdom may not be afraid of these public opinions, but the Indians are likely to give up buying or switch to other companies because of this. This is difficult to accept for IAI, which is eager to withdraw funds. ?Chang Haonan thought for a moment. ? Judging from the conditions alone, the US$250 million can be recovered, and there is also a 15% loan that is essentially equivalent to liquidated damages. Approximately around US$50 million. Compared to the previous life, it is not a loss. However, since the bridge has been forged, it is naturally impossible to just let it go. ??But then again, after all, the Kingdom of David has a good man to back it up. If it really causes trouble in the open, China really doesn''t have many bargaining chips. So, it is best to find a way to make the opponent suffer a hidden loss. Just like what was done in the Balkans. And if you count the time... ?Perhaps we can do something in the Nanli area... (End of this chapter) Chapter 796 Write it down in a notebook first Chapter 796: Write it down in a notebook first Although the plan is already in place, it is not yet time to implement it. At least not when there are big moves. First of all, it is already December 1999, and the millennium is approaching. The Davidian garrison in southern Lebanon has basically begun to withdraw, leaving only a ruined puppet regime lingering there. Several other surrounding countries have not completely given up their illusions about the West at this time, and are in a tangled stage of dilemma, with no good focus. Secondly, although China today is 100 million points stronger than the previous generation, it is still slightly out of reach of places like the east coast of the Mediterranean. In short, both in terms of needs and means, some further preparations are needed. In the final analysis, the reason why the Ring Project has reached this stage is mainly because when the agreement was signed, China still maintained its illusions about the West. Moreover, at that time, the arms business between China and the Kingdom of David had been going on for many years. The introduced Strange Snake air-to-air missiles, as well as the Harpy anti-radiation drones that were under negotiation at the time and later successfully introduced, later also affected China. The development of similar weapons has had a certain positive effect. Therefore, I think that since the contract has been signed, the "spirit of contract" plus the relationship of "old business partners" should be able to guarantee the normal execution of the terms. The result can be imagined. ?The Western contract spirit is used to bind others, not themselves at all. By the time Chang Haonan finally made some noise with the Science and Technology Commission and was able to speak, the advance payment and a plane had already been sent. So all we can do is find a way to wipe our butt. ?Of course, the red and black accounts in the small notebook must still be remembered. Looking at Chang Haonan''s uncertain face, Ding Gaoheng could naturally guess what he was thinking. ? ? After all, the latter is someone who has personally experienced the darkest moments from the 1980s to the early 1990s. His perspective on things is definitely different from that of Chang Haonan, who was reborn in the 2020s. For him, the outcome of the Ring Project is indeed not bad. At least compared to the Peace Model Project back then, it was much more respectable. And he didnt suffer much. After being silent for a while, Ding Gaoheng still spoke: "Xiao Chang, don''t be too angry about this matter. It may not be a bad thing for us to be able to quickly cut through the mess and bring the ring project to an end." ?There is nothing wrong with what you say. As long as the Ring Project exists, it is inevitable that some people will take chances on the Kingdom of David. As a comprador, there is no bottom line after all. It would be better to cut off this last thought completely. After a short pause, he continued: "The nearly 300 million US dollars recovered, as well as the follow-up funds originally planned to be allocated to the ring project, will be reported to the superiors and invested as much as possible in the subsequent research and development projects of domestic early warning aircraft." Hearing the news, Chang Haonan''s complexion suddenly turned from gloomy to clear. You know, the budget of the entire ring project is almost 1.2 billion US dollars! This is 1999 dollars! Although China helped the EU keep the euro''s exchange rate from falling below 1 during Operation Allied Force, making the euro stronger in this timeline than in the previous life, at least for now, the U.S. dollar is still the unquestionable number one in the world. One currency. 1.2 billion US dollars is equivalent to more than 10 billion yuan. Even if only half of it, 5 billion yuan, is allocated, it is already equivalent to one-third of the manned space project, or more than half of the budget of Turbofan 10. You must know that the former also includes infrastructure such as railways, launch sites, and measurement and control stations, while the latter includes the research and development of the entire 3.75-generation core machine. In this case, it would be best to ask Shanghai Aircraft Corporation to speed up the progress and build the C909 passenger aircraft as soon as possible. Chang Haonan thought for a moment and then said: "Technical demonstrators and prototypes can be built with two Tu-214s and modified one at a time. However, if mass production is to be carried out, it is best to ensure the independence of the platform." In the previous life, the Air Police 2000 only produced 4 aircraft and was forced to replace them. The Yun-9 platform switched to producing the Air Police 500, largely because the number of IL-76s on hand was insufficient and they were all old aircraft. Due to different usage conditions, the conditions of the aircraft varied greatly, and it was almost necessary to tailor-made modification plans for each aircraft. ?That kind of sourness makes Chang Haonan''s head spin just thinking about it, but he doesn''t want to experience it personally. "no problem" ?Now that Ding Gaoheng''s money bag has become more bulging, he agreed very simply: "Next year is the last year of the Ninth Five-Year Plan, and we must formulate a development plan for the Tenth Five-Year Plan. At that time, let Hufei mention the priority of C909 and find ways to get some funding. After all, C909 is not a new product. Regarding the aircraft, considering the progress of C808 and Project 11, it should not be delayed for too long. ?Chang Haonan nodded, agreeing with Ding Gaoheng''s judgment. Compared with the jump directly from the 80-ton Y8 to the 220-ton Y20 in the previous generation, adding a 110-ton product transition in the middle is obviously more in line with the general law of the development of the aviation manufacturing industry. After finishing talking about the serious business, the two chatted for a while. When it was almost time to get off work, Ding Gaoheng suddenly invited Chang Haonan to have dinner at his house again. For Chang Haonan, this is indeed a "common meal". ?But this time, he looked embarrassed: Director Ding, Old Wu returned from Ermao today and has made an appointment with me tonight. Its really If it is a private meeting, then it must be declined. ??But meeting with Wu Yifan falls within his business scope, so it will definitely not delay his work. What''s more, because of what happened just now, Chang Haonan also wanted to meet the other party as soon as possible. Hearing this, Ding Gaoheng waved his hands indifferently: Thats okay, work matters are more important. Anyway, I have the same meals at home every day. You can just come over another day. Because Chang Haonan specially set up two private rooms in the canteen of Torch Group, so this time, he and Wu Yifan no longer need to meet outsiders. ?At seven o''clock in the evening, Wu Yifan arrived at Torch Group on time. When they first met, Chang Haonan almost didn''t recognize him. Old Wu, your face looks like this Comparing to the meeting at the beginning of the year, Wu Yifans skin tone has become several shades darker: I remember you went to Eastern Europe, not East Africa. Why do you have such a tan? Its not the big job you gave me. Lao Wu said as he hung the scarf and coat on the hangers at the door: "During the hottest period of this summer, I was dusting people in the Balkans for four consecutive months, standing under the sun every day. Is it like this now or did it turn a little grayer after I returned to Ermao? If you had seen me three months earlier, I would have looked like a big African brother..." Although there were complaints on his lips, Lao Wu''s expression was still full of joy. After all, hard work is hard work, but the money earned is real. For a person with little background like him, there are not many ways to make the first pot of gold. Besides, a huge change in appearance is not necessarily a bad thing for the nature of Lao Wus job. As soon as the two of them sat down and exchanged pleasantries, two waiters came in with a trolley and brought the dishes that had been prepared in advance to the table one by one. After all, it is our own internal restaurant, and most of the things discussed here are not easy to spread. ??If people keep coming in one after another during the meal, even if there is a doorbell at the door to prevent leaks, it will always interrupt the conversation and make people uncomfortable. (End of this chapter) Chapter 797 Layout in advance Chapter 797: Planning in advance Lao Wu. After the waiter left, Chang Haonan took a sip of tea and got straight to the point: The aircraft carrier that Luchuang Group bought back has not been towed back yet? "not yet." ?Wu Yifan lowered his head and scooped up a spoonful of stewed lion head: "Originally we planned to set off in August or September, but as I reported to you last time, there was a batch of fragile equipment that we had obtained from the shipyard and put on the ship. We were worried that it would be damaged midway or be robbed by someone who was interested. So I made a temporary decision to dismantle it and give it to me to transport back, so I spent a few months dismantling the equipment. However, before I come back from this trip, all the work has been basically completed. I estimate that I will be able to leave Hong Kong before the end of the year. After finishing speaking, he put the lion''s head into his mouth, tasted it carefully, and then let out a sigh of satisfaction: When it comes to food, it has to be better in China ?Chang Haonan has not been abroad for a long time, but looking at the other party''s appearance, he probably suffered a lot outside. Immediately turned a few big dishes aside: "That''s good. During this period, Shipbuilding Industry has been eagerly waiting for the ship to arrive. It is said that Lianhai Shipyard and the dock have been dredged and prepared..." In fact, it doesnt matter to him that the ship leaves a month earlier or a month later. The key point is to calculate the time and prepare to deal with the Turks who are likely to cause trouble. At this time, Old Wu finally put down the spoon in his hand: Speaking of which, there is one more thing I need you to decide on. ?Chang Haonan was rolling duck pancakes with his head down. He didn''t speak, but raised his hand to signal the other person to continue talking. Its a matter of friendship plan. Wu Yifan replied: "Didn''t I send hundreds of engineers and technicians from the Black Sea Shipyard to China before? Some people were a little worried at first and didn''t want to bring their families with them. But after staying for a few months, they regretted it and grabbed them one by one. Please contact your family to come over. "As a result, this matter slowly spread. Not only the Black Sea Shipyard, but also several large-scale military industrial companies such as Kharkiv, Antonov, and Ivchenko started to Contact the smuggler... er... liaison officer I assigned there and ask if we can implement the same policy and come to the country. " Yes, of course I can. This time Chang Haonan raised his head: As long as it meets the requirements we have set, the more the better. Even if most people cannot participate in our military projects, they can still play a role in the civilian industry. ? ?The original intention of setting up the friendship plan was to systematically introduce talents from the CIS countries. Now that they are rushing to come over, it is naturally a good thing - You must know that these people are not foreign trash, they are all technical backbones trained during the Soviet period. But Brother Nan Old Wu hesitated for a moment: Others are easy to say, but both Antonov and Ivchenko are the second-tier suppliers of the Tu334 passenger aircraft we introduced, which should be called C808 in China. I specially asked someone to check it. Even under the current situation, it is very difficult for them to complete the delivery task. If I pick up the wool again, I am afraid that this production speed..." Obviously, after a few years of hard work after graduation, he is much more thoughtful in doing things than before. Dont worry about this. You are only responsible for checking the qualifications and bringing them back. I will solve the quota issue! ?Chang Haonans answer was crisp and clear. But the passenger plane Wu Yifan is still a little worried. ?Chang Haonan raised his hand and pressed it down, then lowered his voice slightly: "Technically speaking, the production of C808 only requires us, Tupolev and Salyut to complete it. The reason why Ermao was included at that time, in addition to considering the property rights issue of Tu334 itself, was to wait for their production capacity to catch up. The day I wont go "ha?" Lao Wus chopsticks for picking up food stopped in mid-air. This matter is more complicated to elaborate on ?Chang Haonan also stopped drinking soup: In short, this project was guaranteed by the Ermao official. In other words, if it cannot be implemented as required, the compensation will be paid by the Ermao official. Uhso? Old Wu frowned, feeling that things were not simple: Er Mao is so poor now that even natural gas has to be financed by Da Mao. Unless you go to Kiev to dismantle telephone poles, it will be difficult to get the money back..." I wasnt prepared to ask for it. Chang Haonan pointed out: I am planning to wait until a certain stage and then use the name of debt repayment to get some good stuff back. Is that so? ?Wu Yifan suddenly realized it, then raised his hand and touched his temples: "If you want to say black, then you are the black ones..." Chang Haonan waved his hand: Hey, its a prize, its a prize What he was eyeing was naturally the pictures in Ermao''s hand160. ??There are currently 19 Tu-160s remaining at Preluki Air Force Base. After so many years, there may still be a total of eleven or twelve that can still fly. Originally, around 1995, the country sent people to inspect these aircraft. But at that time Ermao was under joint pressure, and in the end it was not sold. Originally, this matter should have gone nowhere. ??Without the series of drastic changes that Chang Haonan later triggered, 8 of these aircraft would have been handed over to Mao in the name of debt repayment about a year later, and the remaining 11 would have been completely destroyed under "international supervision." Later, Tupolev used the spare parts left over to assemble a new aircraft to supplement a Tu-160 that crashed due to an accident. Further forward, that is the story of the successful resumption of production of Tu160M2 in 2023. ?However, in todays timeline that has changed beyond recognition, the United States and Russia, which originally had a certain tacit understanding on this matter, have interrupted contact due to the Allied Forces actions ?Although there is no evidence to clearly indicate where the weapon that shot down the B2 came from, at this time, Americans'' path dependence is still stuck in the Cold War era. So I almost instinctively put the blame on Da Mao. ?Hence, if Da Mao now wants to get a few bombers back as planned, it would be best to find one or two more helpers to jointly put pressure on Er Mao. Of course, as a proper strategic weapon, the whereabouts of any Tu-160 is an extremely sensitive matter. Even Chang Haonan cannot guarantee 100% success. But now that I have the opportunity, I must give it a try. Even if we can only get three or four of them, it will give China early access to the design, maintenance and production of 300-ton supersonic aircraft. And acquire one more theoretical strike capability against the east coast of the Pacific In fact, since the mid-1970s, the Chinese Air Force has eliminated all nuclear-related positions, and there is no mass-produced aircraft in service that can actually carry nuclear weapons. In other words, Chinas trinity nuclear capabilities have actually been absent for a long time. ?In the context of the time, this decision was understandable. After all, the aerial bombing of H-6 nuclear bombs did not have any tactical value, no matter how abstract it sounded. However, as the times progress, the variety of space-based nuclear weapons will increase again, especially in the use of tactical nuclear weapons, which have unique advantages. It is best to recover as soon as possible. As a strategic bomber, the Tu-160 has undoubtedly considered this since its mother''s womb. In comparison, having an additional logistics support system is a negligible price. The two of them ate and drank together and quickly finished chatting about the planned topics. After a moment of silence, Chang Haonan said what he had just remembered during the day. Old Wu, after you go back this time, can you think of a way to open up a transportation route from Eastern Europe to the east coast of the Mediterranean? ?This somewhat explosive topic made Wu Yifan, who was rubbing his stomach to digest food after a meal, unable to react for a while: Where? The east coast of the Mediterranean, I mean the northern part of the Levant, places like Lebanon. Hearing this, Old Wu sat up straight again and thought for a while before asking: There doesnt seem to be anything worth returning to in these places, right? Thats true. Chang Haonan replied: So you first get some normal supplies, such as transporting cars, flour, electrical appliances and the like, and then transport some local specialties. In short, things are not important. What you can earn personally is what matters. The important thing is to open up the route, so that if you need it in the future, you can use it immediately without having to improvise. There is no doubt that this is planning in advance. Hmm...I have to find out about this after I get back. Old Wus answer was very cautious: I have never run this route before. I feel that it is more reliable to go from the Anatolian Plateau or the two river basins in the east than from the sea, but I have to try it to know the specific situation... You are a professional in this area. ?Chang Haonan patted the other party on the shoulder: I dont rush for time, and my priority is to ensure the stability of the channel. "good." (End of this chapter) Chapter 798 My boss mentorjpg Chapter 798 My Big Mentor.jpg The two are old classmates after all, and they haven''t seen each other for nearly a year. Therefore, after the serious talk, there is bound to be a routine bragging session. Compared to Chang Haonan who spends most of his time immersed in projects or experiments, Lao Wus life is obviously much more exciting and colorful. For the entire second half of the meal, Chang Haonan was basically listening to him telling stories alone. ?Especially the few months I spent in the Balkans were so exciting that I could almost write a novel. Wu Yifan prefers drinking. But when I was abroad, I was worried about making a mistake after drinking, so I always presented myself as a teetotaler. ?Now that Im back in China, I can finally drink as much as I want. So, although Chang Haonan did not drink, he still got a little drunk by himself. Do you still have contact with the local US military? When Lao Wu talked about how he wholesaled MRE and other logistical supplies from the US military at low prices, then sold them to Ermao for money, and finally got involved with Eryi Tian, ??who was in charge of the US military, Chang Haonan finally couldn''t hold himself back. . ??The U.S. military has more flexible ways of making money, and he knows this. ??However, when he arrived at the station and he didn''t even feel warm, he dared to do business with a suspected profiteer with unknown origins, which was a bit beyond his expectations. More than just contact Lao Wu gulped down another mouthful of thatch: "The brigade commander at their camp over there is a... colonel, his name is... what is Martin Dempsey? I talked... and laughed..." ?At this time, his tone of voice became increasingly incoherent. But even the military rank and name of the other party are mentioned clearly, so it is obviously credible. More importantly, Chang Haonan has heard of this name. Its not you who will wait... He quickly stopped the other person from continuing: Are you sure your name is Martin Dempsey? "Yeah...it seems that he was a group leader before." ?Wu Yifan nodded, then suddenly stopped: "Then what...organizational discipline should...not be able to control me as a business person...right?" In fact, it is possible. ?However, Lao Wu''s business is of a special nature and he really cannot stick to this. Chang Haonan waved his hand: Try to maintain a relationship with him, maybe it will be useful in the future... Martin Dempsey, later served as Chairman of the United States Joint Chiefs of Staff. ?Of course, this doesnt really matter. After all, that was almost 20 years later. The point is that in Chang Haonan''s impression, this man seems to have risen to great heights in the Middle East by relying on military exploits after 2003. So, there is a high probability that this relationship can really come in handy... ?In this way, the meal between the two of them lasted until late at night. Fortunately, Chang Haonan is very energetic, and neither the professor nor the chief planner has to check in, so he can still go to work as usual the next day. Since he has been on a business trip in Shengjing for more than a week in the past week, when Chang Haonan returned to his office in Beijing Airlines, he found that there was already a lot of work piled on the table that needed to be handled by him personally. Feasibility assessment of two boil-off gas reliquefaction system design options Vibration of ultra-large ships transmission system and its structural risk assessment on the side walls of thin-walled cargo tanks Fusion diagnosis of early faults of large machinery based on manifold learning algorithm The top few are project reports or project applications submitted by three other teachers in the laboratory. Fortunately, the articles are not too long, and they are all areas that Chang Haonan is relatively familiar with, so it didnt take much time to read them all. Liu Fangping and Lei Zhixing were indeed capable. After receiving the excessive funding from Chang Haonan, they did not focus all their energy on the feasibility study, but simultaneously carried out the second project mentioned above. Research. Because according to their investigation, there is indeed a certain gap between the processing and manufacturing capabilities of the Hudong Plant, or the entire Chinese shipbuilding industry, and the international first-class level. ??For large ships like LNG ships that work under extreme temperature differences, this gap is likely to bring additional risks... Furthermore, although they did not mention it, Chang Haonan quickly realized that this research result seemed to be applicable to other fields. Such as controlling submarine noise... In short, although the previously allocated budget was not left, others completed double the amount of tasks. So its not wasted. They have also passed the "test" set by Chang Haonan. The third item was naturally submitted by Yao Mengna. She is planning to set up a research topic on this topic. Its a coincidence. ?Yao Mengna has not had direct contact with the LNG ship project. ??However, this project that uses manifold learning algorithms for in-situ condition monitoring and fault diagnosis seems to be able to solve the problems raised by Liu Fangping and Lei Zhixing... In the end, of course, he signed and approved it. And below these three contents Laboratory access permit? ?Chang Haonan looked at the list in front of him and was stunned. I then remembered that I had previously accepted a senior student from my school to study as a graduate student. ??And if we calculate the time, it is indeed time for recommended students to enter the laboratory... Thinking of this, he suddenly broke into a cold sweat. I was so obsessed with the project that I almost forgot about it. ??If I come back from Shengjing a few days later, I''m afraid it will delay the students'' graduation projects... ?So while reprimanding herself a few words from the bottom of her heart, she quickly contacted Li Yabos counselor and asked the other party to inform her that she could come to his office. "well" Chang Haona hung up the phone and sighed softly: "I''m still not used to it...I''m going to be a teacher now..." ??As he spoke, he pressed the power button of the computer, waited for a few minutes, and then entered the mailbox as usual. By this time in 1999, many foreign companies had begun to send advertisements to mailboxes. ?Especially in the past, Chang Haonan had registered accounts with many publishing houses in order to upload papers, so almost all of the content at the top were these unnutritious contents. Just when Chang Haonan was about to frame them together and delete them all, a slightly inconspicuous email hidden in the middle came into his sight. ? Judging from the senders suffix, it seems to be the email address of a research institution. ?This made him stop his right hand from reaching for the delete key on the keyboard. Then opened the email. The content is written in English. The sentence structure is a bit strange. But fortunately, I can still understand it. [Dear Professor Chang Haonan, I happened to see your paper on Ricci flow surgical tools published in the Annals of Mathematics today, and I was very inspired. Your research results are of great significance to the entire field of differential geometry, especially low-dimensional The proof of Poincar''s conjecture under these conditions has important significance...] Preceded by a routine short greeting. However, what Chang Haonan never expected was. Then it goes directly to the **** part. Based on the results of your paper, I came to the following conclusion: let g(ij) be a complete manifold on M, and satisfy g(ij)/=2R(ij), and M has bounded curvature... [I would like to ask, based on the above proof process, whether it can be deduced that on (-, T] (T>0), there are non-negative curvature operators and bounded curvature, and it is k-noncollapsed on all scales ?] ?The content of the email jumped so much that it was difficult for Chang Haonan to keep up. ?But I finally understood it. The other party proposed a volume reduction algorithm based on Ricci flow, and tried to use this algorithm to prove two non-local collapse theorems, which are used to estimate the local injective radius of compact manifolds. As for the identity of the sender In fact, its almost ready to come out. ??There are only a few people in the world who would directly send such top journal-level results via email for communication. Restricted to the field of differential geometry ?Chang Haonan gently rolled the mouse wheel. It was just as he expected. The signature at the bottom of the email is - ֧֧ݧާѧߧڧԧڧۧܧӧݧ֧ӧڧ. ?Perelman Grigory Yakovlevich. ??That is, the super master who turned the Poincar conjecture into the Poincar-Perelman theorem in the previous timeline. ?Furthermore, after reading this email, Chang Haonan finally understood why it took three years for his proof process to be widely recognized by the mathematics community - ?Its too jumpy. Even if the other partys starting point is Changs Lemma proved by Chang Haonan, even if what is mentioned in the email is still only a small step in the process of proving the Poincar Conjecture, even if the length of the email is already quite long... But it still took Chang Haonan almost a whole morning to fully understand it. It can be imagined how confused the mathematicians of the previous life were when they directly saw the proof process thrown out by the other party without any preparation... After sorting out his thoughts for a while, Chang Haonan clicked the "Reply" option and prepared to write a reply to the other party. At this moment, there was a knock on the door outside the office. ?Chang Haonan stopped moving. ??The computer in his office is connected to the Internet, and it is impossible to process confidential information on it, so there is no reason why he cannot see people. Please come in! The person who came was none other than Li Yabo who he had just called over. Teacher Chang, I heard the counselor said you were looking for me. Yes, its about your completion. ?Chang Haonan raised his hand and motioned for the other person to sit on the chair opposite. "Well" ?Li Yabo pursed his lips, as if he was really hesitant to speak. ?However, he finally said: I looked at the list of topics provided by the college before. Teacher Chang, it seems that you didnt submit a final topic? Awkward. Very embarrassing. Actually, Chang Haonan had indeed forgotten. In other words, as a new professor, he didnt even know that there was such a thing as submitting a thesis project. ?Of course, it is impossible to admit such an embarrassing thing in front of one''s own students. ??And considering the relationship between him and Tang Lintian, this may not be a big deal. So, Chang Haonan replied without changing his expression or heartbeat: Yes, because I am going to let you think about the specific direction and related field of research you want to do, and then apply for it. ?This time it was Li Yabos turn to be confused: "ah?" Ibut You should at least give me a basic range, right? Chang Haonan smiled slightly: No, as long as you are interested, have relevant basic knowledge, and have the ability to proceed, you can do it. Even if I dont have it on hand, I can still find a topic for you! Li Yabo is just a tactical supporter. Is this the benefit of being a mentor with a big boss? ?However, after being briefly surprised, he quickly gave his answer: Teacher Chang, I want to study the mechanical analysis and design of large-diameter thin-walled box structures made of composite materials! (End of this chapter) Chapter 799 Emails that influenced the entire history of mathematics Chapter 799: Emails that influenced the entire history of mathematics In the previous letter sent to Chang Haonan, Li Yabo had already expressed his hope to use structural mechanics as a research field. ?However, "structural mechanics" is still a huge scope after all, and most people can only choose a more specific direction of specialization from it throughout their lives. Let alone a mere graduation project. ?Of course, under normal circumstances, for undergraduate students, they are just handed over to a certain senior brother or sister, and they can get started while getting familiar with the research group and project, and then it is almost over. ?However, as Chang Haonans first disciple, Li Yabos treatment is naturally extraordinary ?Chang Haonan is going to take him with him personally. The kind that starts with formulating a training plan. But at present, Chang Haonan only has one turbofan 10 project left at hand. Li Yabo is still just an undergraduate after all. ?Whether from a capability or confidentiality perspective, it is not suitable for him to be directly exposed to a project of this level ?Chang Haonan''s direct participation in the August 3rd Project was a special situation after all, and it cannot be regarded as a regular occurrence. So, just let the other party choose. Anyway, with Chang Haonan''s current status in the Science and Technology Commission system, he can get projects immediately as long as the direction is not too outrageous. And Li Yabo did not disappoint. Such a specific and targeted answer has obviously been considered long ago. Composite material thin-walled boxes are also a subject with a very wide range of applications. And very prophetic. ?The "box" here is not limited to horizontal and vertical hexahedrons, but also includes cylinders, ellipsoids or other irregular shapes. Basically regarded as the main research direction in the aerospace field in the next 20 to 30 years. ?Like the fuselage of large passenger aircraft, the casings of rocket missiles, etc., the amount of composite materials will gradually increase to reduce the structural weight. ?For example, when Eurocopter designed the NH90, it had already considered using a large number of composite materials in the fuselage. ? Its just that the operating environment of helicopters is indeed quite harsh. Giving up ease of maintenance and damage resistance for the sake of a small amount of weight is a waste of watermelon, so Chang Haonan stopped it. ?However, at the end of the 1990s, the application of composite materials was still a well-established frontier field. It is really surprising that a senior undergraduate student could choose it so accurately. Tell me why you want to go in this direction? Chang Haonan asked. Didnt I work on a small UAV structural design project with Teacher Li Guang? At the beginning, because the engine power provided by Party A was insufficient, Teacher Li considered completely using carbon fiber instead of metal to make the body of the UAV. " But in the end, because no research in this area has been done before, Party A was worried that the design risk would be too great, and of course there were cost issues. In the end, magnesium-aluminum alloy was used. ?Chang Haonan was speechless for a moment. At the beginning, it is indeed risky to use a 100% composite body. ?At present, Huaxia aircraft generally use less composite materials, and their main applications are secondary skins and other locations that do not bear high loads. So...how was the problem of overweight being solved in the end? This question is purely out of curiosity. ?The intersection between Chang Haonan and Professor Li Guang was limited to the time when they were just reborn. The other person served as a judge in Professor Liu Hongbo''s class and was shocked by his design plan. So the former is not quite sure what the drone project is about. Not solved. Li Yabo replied: Party A later replaced the piston engine in the original plan with a more powerful lightweight turboprop, so the overweight was also overweight. That project did not have high requirements for us. Basically, it only needed to be able to fly..." "Fine." ?Chang Haonan never expected that it would end like this: Now that you are sure, lets go in this direction. After speaking, he lowered his head and thought for a moment: However, scientific research must be carried out step by step. Research on composite material structures is a brand new topic for our country...and the world, so we cannot start large-scale projects right away..." I have some relevant information and literature. I will give you a look today to familiarize yourself with the basic research methods of materials mechanics and structural mechanics. I will officially start after I apply for the project. "good." After talking about the project, Chang Haonan asked Li Yabo to go to Liu Chenchen to get a stamp to prove that he had indeed entered the research team and completed the topic selection process. Graduation project is regarded as a course that takes up more than ten credits in the training program. ??If the topic opening link is missing, although Chang Haonan can handle it, it is still more troublesome. Huh Chang Haonan finally breathed a sigh of relief when he saw Li Yabos back disappearing from the door, almost revealing that he had forgotten about him. Then he returned his attention to the computer screen and began to think about how to write a reply to Perelman. A few days later. ?Moscow, Steklov Institute of Mathematics. ??Gregory Perelman, who has been working for more than ten hours straight and is about to go home for a break, opens his mailbox as usual and prepares to check if there are any new emails that he needs to deal with. This is his personal habit. Plan the next day''s work before you leave work the day before, rather than waiting until after you arrive at work that day. In the past ten years, this has always been the case, and it is unshakable. Invitation to Princetons Annual Mathematics Meeting Millennium Mathematics Prize The invitation for a review of the Journal of Mathematics ha seems to have been affected by the actions of the Annals of Mathematics. They are really stupid. If they continue like this, their influence will never be as good as that of the Annals of Mathematics ?Perelman moved swiftly into the recycling bin, one after another that he deemed unimportant. Even included a notice awarding him the Millennium Mathematics Prize and informing him to go and receive the award. He has no plans to leave Russia in the near future. At least I wont leave because of these trivial things. What Perelman loves is the beauty and mystery of mathematics itself. After successfully proving the soul conjecture a few years ago, he discovered that if he won an award for solving a certain mathematical problem, it would dilute his ability to solve a certain mathematical problem. The joy of the problem itself. From that time on, he refused to accept any personal awards, and even gradually tended to publish his results directly in the public rather than in the form of papers. "etc" ?Just when Perelman thought tomorrow would be another boring day, he suddenly caught a glimpse of an email he had been waiting for. To be precise, its a reply letter. Its finally here He clicked quickly. About a month ago, he was shocked when he saw this paper published in the Annals of Mathematics. ?There is actually another person in the world who is solving the application problem of Ricci flow in three-dimensional conditions with a similar idea to him. Moreover, he was half a step ahead of him. So, after getting some inspiration from it, Perelman wrote his thoughts in an email and sent it to the author of the paper. For more than a week, he did not receive a reply. until today. Dear Professor Perelman, thank you for your letter. The content of the email has greatly inspired my research... Perelman skimmed over the polite remarks. Fortunately, Chang Haonan''s reply style was similar to his, and the second paragraph went directly to the point: I have verified your conclusion and there is no problem, but the derivation process of the theorem seems to be more concise and direct... [The function of the non-local collapse theorem is that it can give a local injective radius estimate, and the Ricci flow after surgery can still satisfy this property. In this case, based on Hamilton''s injective radius estimation theorem, it can be derived For the marked (Mk, gk(t), pk) that satisfies certain conditions, there must be a convergent subsequence...] ??The expression on Perelman''s face changed from relaxed to solemn, and then to excited... He quickly pulled out a ballpoint pen and a piece of paper from the desk next to him, lowered his head and began to calculate quickly. Thats right...this verification process should be more straightforward... ?About half an hour later, Perelman looked at the calculation process that only used one positive and negative space, and said to himself excitedly. ?Although the content of the theorem proved by Chang Haonan is exactly the same as what he sent before, the process is much simpler. In this case, I dont have to worry about those guys not being able to understand my proof process Perelman muttered as he took off his coat and scarf and returned to his desk. ?Obviously, the plans to get off work were ruined. Perhaps, I should go to China myself? ? He ??looked at the signature of CHANG Haonan at the bottom of the email on the computer screen, and had long forgotten the idea that he was not planning to go abroad in the near future. (End of this chapter) Chapter 800 Shock French Chicken all year long Chapter 800 Shocked French Chicken for a Whole Year At this time, Chang Haonan, who had just replied to Perelman''s email, naturally did not know that these emails exchanged between the two of them would leave a mark in the entire history of human mathematics, even because the time was close to 1999. On December 31st, it was dubbed the New Millennium Mail by the bad guys. In fact, according to his work efficiency, the reply should have been sent earlier. The main reason why Perelman waited so long in despair was because, by coincidence, the day after he received the email from the other party, a French team consisting mainly of Snecma and Dassault appeared. The defense industry delegation flew to China. The purpose is, of course, to concretely implement the joint research and development of the M88 engine after reaching a certain consensus in the preliminary negotiations. As the chief planner of the Aerospace Power Group and perhaps one of the most experienced people in China in exporting technology to foreign countries, Chang Haonan naturally became the person in charge of this matter. ?Of course, his presence is definitely not required in the negotiations. At least not at first. ?This can also be considered a little negotiation tip ?It is best to let the team''s second-in-command come forward to preside over the negotiations. This way, the standards are high enough, and if you really encounter any problems, you can also delay it by saying "it needs to be reported for instructions." ? And if the person who can make the final decision is present, it will lead to a lack of buffering in the situation. But not attending does not mean not paying attention. Remote control is more troublesome. Qin Province, Haojing. Since the negotiation in 1997, this place has almost become a window for Chinas foreign cooperation in the aviation field, especially its cooperation with the European Union. ?Perhaps its because the joint venture with Boeing did achieve a win-win situation, so even Europeans have some inexplicable affection for Haojing. ?? I have been to China several times for meetings or negotiations, and I have always mentioned that the venue should be set up here. ?Finmeccanica and Airbus even set up their offices in China in Haojing. ???It is a city that was not originally open to a high level of openness and allowed an inland city to start systematic foreign-related business. And this time is no exception. ??Although Dassaults military aircraft department and Snecma Group have not had much exchanges with China in the past ten years, they have still learned from the experience of their peers. Aviation hotel. In fact, it was the location of the negotiation venue that year. Later it was acquired by Haofei Group and renamed. Twenty people gradually entered the conference room on the top floor and sat down on both sides of the long conference table. But no one spoke immediately. ?There was an eerie silence in the room. ?The eyes collided fiercely in mid-air. The atmosphere was at an extreme stalemate. Although the two sides have reached an agreement on "cooperation", when it comes to digging into the details, since it is a sensitive military-related project after all, there are still many differences. The most critical one China believes that since you want us to help solve the problem, it should be a reasonable request to ship an M88 engine to us first, right? The French side''s response was that you are not kidding me. If you transport the engine to China, and then send it to a high-altitude platform for testing, wouldn''t you know everything? ?What is the difference between this and letting us run naked in front of you? They believe that the cooperation model between Bingcheng Aircraft Industry Group and Eurocopter should be followed, with China sending technical personnel to France to participate in the project. They also said that money is not an issue, and all Chinese technical personnel will receive business travel subsidies in accordance with French standards. We said that this is to solve the problem for you, and you should have paid the labor fee. The reason why Icefly and Eurocopter cooperate in France is because the two parties are each other''s suppliers at the legal level, and in turn Eurocopter Group We also sent people to our side to guide the development of the Z-12 helicopter, which is completely incomparable with the M88 situation... In short, the two sides just went back and forth like this, doing oral gymnastics all morning, but there was no progress. The afternoon negotiations began in this atmosphere. ??But different from the morning, this time, Liu Yongquan, the on-site person in charge of the Chinese side, had an extra notebook in front of him. A notebook full of notes. Finally, after a slightly awkward opening remarks, the afternoon session officially began. The focus of the dispute between the two parties, as well as their respective attitudes, seemed to be no different from that in the morning. Until Liu Yongquan spoke. The first sentence almost caused the Frenchman on the opposite side to almost break the defense. Actually, your concern about leaking technical secrets is completely unreasonable, because we actually now have a general understanding of the situation of the M88 engine and the problems it faces, so there is nothing to leak. ??The people across from Snecma were stunned after hearing this sentence, and for a moment they didn''t know how to respond. Liu Yongquan did not give them a chance to respond. He opened the book on the table. That was given to him by Chang Haonan before the negotiation. employers The contents inside To be honest, Liu Yongquan himself didnt dare to believe it. Thats why I didnt take it out in the morning. But seeing the negotiations reaching a deadlock, he had no choice but to consider taking drastic measures. Let me give you an example. ?He stared into the eyes of Ian Vista, a senior engineer from the Snecma Group opposite: Is the M88 engine prone to combustion chamber flameout and eventual engine shutdown when running at low speeds in moderate rain or above? ?Vestal''s whole body trembled suddenly, and he obviously wanted to answer subconsciously, but then he realized that this was on the negotiation table, so he stopped moving. ?However, Liu Yongquan could clearly see that the other party was just about to nod. ?This feedback gave him strong confidence. So, he continued: In addition, when the fan speed is maintained near 85% for a long time, the first-stage fan will have a high probability of entering resonance, causing damage to the blade structure and even the inner wall of the engine outer casing. "besides" ??Every time Liu Yongquan said something, the faces of Vesta and the opponent''s general manager, Charles Edelstein, turned pale. And because they were originally white, when the former closed the book and raised his head again, there was no color on their faces... Finally, there is one more thing. Liu Yongquan closed the notebook again: After the engine is overhauled for the first time, after another 1,000-1,500 cycles, propagating cracks will be found on the surface of the turbine disc, but the original cycle life of this component should be much longer. You probably havent discovered this problem yet, but it does exist. If you dont believe it, you can test it after you return to China... The whole place fell silent again. Only this time, there was no even eye contact. Obviously, this wave just caused a lot of psychological damage to the opponent. "us" ?Ed Steiners voice was trembling when he spoke: We want to apply for an adjournment Liu Yongquan showed a kind smile, nodded, and signaled the other party to please please. (End of this chapter) Chapter 801 What were you doing earlier? Chapter 801 What have you been doing? Watching a group of dejected French people leaving the venue, Liu Yongquan shook his head mockingly. I had believed that Mr. Chang wouldnt have so many things to worry about ?While he was thinking this, he was also curious about where Chang Haonan knew such detailed information. It should be said that Liu Yongquan had some concerns about what Chang Haonan told him before, which is understandable - The latter has never been abroad and has never seen an M88 engine. But the descriptions of the defects seem real. Oh, no. Considering the reactions of Ed Steiner and Vesta just now. ?That TM is obviously true. and. ??If the previous ones can be interpreted as good intelligence work, then the last one is simply magic. ??Chang Haonan actually knows things that the French themselves dont know? But no matter what, judging from the reaction from the other side, at least it was quite shocking. Notify me and let the logistics team prepare dinner. Liu Yongquan put away his notebook and said to a local comrade next to him who was responsible for coordination. "ah?" ?The other party was surprised: "It''s... not even three o''clock yet. The negotiation has just started 20 minutes ago?" ??What the French just mentioned was to adjourn the meeting, not to end it directly. In other words, it will come back. Thats it for todays negotiations. The French need some time to accept the reality. Liu Yongquan looked outside the door with deep eyes. He believed that in the other room opposite, the French delegation must have a very complicated mood: To be honest, if I think about it personally, I think even if they can recover by tomorrow, their mental quality will be very strong...so go ahead and prepare. Since the person in charge of the negotiation said this, it was natural that others could not say anything more. They just nodded and left the venue quickly. Actually, Liu Yongquan''s estimate...is not wrong. In another room. ??The dozen or so members of the French delegation looked at each other in confusion. No one spoke. There was a certain amount of confusion and a certain amount of wariness in his eyes. Dr. Vesta. Finally someone spoke: That Chinese guy just now...are they telling the truth? ??Ian Vista shook his head with a blank expression. "no?" ?The man confirmed: What are those Before he could finish speaking, Vesta interrupted him: Yes, no...uh... Obviously, the doctor''s mind is also in chaos. After organizing the words carefully, he explained again: "The first part is true, but the last one is that there will be propagation cracks after overhaul. We... really don''t know yet, and we need to go back and test it." ?And Ed Steiner''s face was almost unbearable. ? He ??did feel that the Chinese people might have some profound insights into CFM56. But not in this profound way. What else do we need to test... Even if the last thing they said is false, we are still in big trouble! ?He said and slapped the table next to him hard: Are you sure that during the two days you arrived in China, including in the hotel room, no one accidentally said these things? Everyone shook their heads. One of them replied: Not to mention that we checked immediately after checking in and found no eavesdropping equipment in the room. Even if there were others we didnt find, it would be impossible to discuss such detailed technical issues in the room..." Since its not a leak...then someone is colluding? ?Ed Steiner put his hands behind his back, feeling that his brain was about to be burned. Mainly, Liu Yongquans performance just now was indeed too scary ?Just imagine, the new generation of weapons and equipment that you plan to use as the main force for at least the next 20 years has not even been officially put into service, and others are already familiar with various parameters and even defects. ??This is still a joke. ?Ed Steiner has always believed that although the food on his side is a little overdone, he still has to be vigilant. Even Americans who participated in the development process of the M88 engine are unlikely to know such details. But now he was a little unsure. In the past, it was only a joke that Number 10 Downing Street did not get the news as quickly as the Kremlin. Looking at it now ??The speed at which the Champs Elyses gets the news may not be comparable to... ?Once this kind of thinking spreads out, it cannot be taken back. Fortunately, Vesta next to her is relatively sensible: I dont think so. Whether its leaks or collusion, there is no reason why the Chinese could penetrate to this extent. "but" ?Ed Steiner paced restlessly back and forth in the room: What other possibilities are there? It cant be that they really analyzed it, right? Vesta thought to herself: If you ask me, who should I ask? But in the end, he shook his head and replied in the most decisive tone possible: I cant say for surewhat if? I think...thats already the case anyway, so why not try what they say... ?In the Rafale project, although Dassault and Snecma are partners, the interests of both parties are not completely consistent. ?Just like before, Dassault had thought about bypassing the latter and going it alone, using its own weight to get General Electric to let go and buy a batch of F404 engines to use first, at least to deliver the first batch of production Rafale C on time. Now, Vesta, as the representative of Snecma, also has his own ideas. That is, no matter what, let the M88 reach a usable state first. As to whether it will affect Rafales future exports Sorry, if the exported Rafale is equipped with F404 or other models of power, it is equivalent to zero for Snecma. ?Ed Steiner lowered his head and said nothing, obviously thinking about the war between heaven and man. He knew that he had no choice in this situation, but if the outcome of the negotiation was so ugly, it would definitely be a stain on his resume. "All right." ?After a few minutes, he finally took a long breath and seemed to have made up his mind: "Anyway, the current situation is indeed quite different from our original estimate." I personally agree with Dr. Vestas opinion in principle, but the final decision depends on the domestic will. In fact, before the negotiations began, most outsiders even believed that even if China and France were willing to cooperate on a large scale, due to a lack of mutual trust, the talks would definitely collapse as soon as the details came to be worked out. So, everyone is waiting to have fun. ?However, no one could have imagined that this negotiation would end in such a dramatic way. ?After the two sides were in a stalemate for half a day as expected, the situation suddenly took a turn for the worse. The speed is comparable to a landslide. The second day was a full-day adjournment. On the third day, both parties suddenly announced that they had reached an agreement on joint research and development Due to the sensitivity of military engines, engines that are still in the development process cannot be directly handed over to China Aerospace Power Group. Hence, Snecma will set up a research and development center in China and transfer at least 50% of the development work of the M88 engine from Europe to here. Then, that evening, the two sides held a signing ceremony... The onlookers had not even reacted at this time, let alone reacted. ?It wasnt until four days later that Ed Steiner, who had been humiliated (back) to the country, suddenly received a report from the public relations department. General Electric sent a message saying that through the efforts of the companys legal department, it has found a way to circumvent export restrictions, so starting from January 1st next year, which is this Saturday, it can provide us with F404GE402 engines Ed Steiner looked at the memo in his hand and felt his scalp numb with anger. He took several deep breaths in succession before he restrained himself from the urge to shred the document in his hand. What have you been doing so far? ?Now that I have signed all the contracts in the hope of ruining my reputation, and the M88 prototype has been installed and sent over, do you remember that it can be exported? Its too late! Sohow do we respond? ?The subordinate standing opposite looked at Ed Steiner''s uncertain face and asked cautiously. "reply?" The latter was so angry that he laughed outright: Tell the Americans not to worry, they can wait until we develop imperial warships to deal with the Galactic Empire, and then sell us the F404 (End of this chapter) Chapter 802 Varyag, set sail Chapter 802 The Varyag sets off ??The French broke out with unprecedented efficiency. On the last day before the new millennium, an IL-76 transport aircraft from the Volga-Dnepr Company, carrying a French technical team and other requirements specified in the agreement, set off from Paris and passed through St. Petersburg and IL. Kucik made two stops and arrived in Shengjing. After the previous negotiation that ruined peoples mentality, Snecma has basically entered a state of breaking the pot. ?The most obvious evidence is that what they packaged and sent was not only an M88-2 engine that was still in prototype state, but also a lot of technical data and development files that had been retained during the previous development process. Those who didnt know it thought they were coming to support the construction of Chinas aviation industry. Even Chang Haonan, who rushed to Shengjing to lead a team to pick up the plane, couldn''t hold back when he saw the goods being shipped out one after another from the cabin. Mr. Chang, you believe me. In the twelfth lunar month of winter, Liu Yongquan was wearing a dog-skin hat, and long white mist rose from his mouth when he spoke: During the negotiation a few days ago, I really told them that I know they are in a hurry, but dont worry, as long as the prototype and related materials can be sent over by the middle of next year. But they didnt listen. The delegation here hadnt even returned yet. They had already booked the plane and asked us when it would be convenient for the handover..." Thats all I have to say, I can only say that I can do it at any time, so... Chang Haonans original plan was to wait until the Turbofan 10 project came to an end, and then select some of the liberated personnel to help the French modify the M88. And considering that the opponent does give a lot, this improvement can be made a little deeper. Otherwise, it would be too difficult for a turbine front temperature to match a fourth-generation aircraft engine model with a thrust of only 7.5 tons. But now this has obviously disrupted the rhythm. After all, if the other party comes here with sincerity, he cannot leave it to others. Its okay, its my fault too. Chang Haonan looked at the staff who were unloading cargo from the cabin and sighed: What I told you may indeed be a bit too strong... Sigh... dont say that either. When talking about this, Liu Yongquans tone suddenly became cheerful: Its a pity that you werent there at the time and didnt see the expression on the face of the Frenchman opposite me when I finished reading those words To be honest, this is the first time Ive seen a white persons face be so white ?Chang Haonan glanced sideways for a moment, glanced at Liu Yongquan''s face, and decided not to disturb the other person''s happy memories. ?After a few minutes, the latter finally tightened his expression again: Mr. Chang, do you think I should continue to follow up on the work on the turbofan 10, or should I start working on the M88 now? ?Chang Haonan had previously said that Liu Yongquan would be responsible for improving the M88, but at that time he did not expect the progress to be so fast. "You are the deputy chief engineer. No matter from the administrative or technical aspects, you have to follow up until the technology is finalized." Chang Haonan said and kicked his hands into his sleeves: There is no need to worry about M88. I estimate that after the negotiations are over, Snecma will be testing hard in China whether cracks will occur after 1000-1500 cycles of overhaul. Ill first find some comrades who have basically completed the work at hand and delay it for a while. After they detect the problem, its too late to start making serious improvements. "so" ?Liu Yong showed his full face: So that problem really exists? Chang Haonan nodded: Of course, will I still be able to deceive you..." ifier Liu Yongquan thought it made sense, but he still felt that it was a bit outrageous for a plot of Zhuge Liang''s nature to happen around him. Then this kind of design flaw is probably related to the production process, which is not our strength. Im afraid it wont be easy to modify it... Unexpectedly, Chang Haonan waved his hand: Dont think too complicated, its not a design flaw at all. "ah?" ?Looking at the stunned Liu Yongquan, Chang Haonan explained: If its really a design flaw, Ive never even seen their engine, how could I know so clearly "Actually, it''s because I checked the files of the time when we cooperated with the French and found that during the reassembly process of Snecma Group after the overhaul, in order to ensure the alignment of the turbine disc and the shaft, the wheel disc hole would be Marking with electrochemical migration. "Originally, there is nothing wrong with this method. It has been used in the aviation industry for more than ten years. However, the M88 has a new hot end coating to increase the temperature in front of the turbine. When marking, it will cause arcing and create small defects. , and if it works for thousands of cycles under harsh working conditions, it will definitely expand into cracks..." "so" ?Liu Yongquans expression at this time was very exciting: Actually, its not a problem with the engine itself at all? "no." ?Chang Haonan replied simply and neatly: Effectively, its just a matter of replacing the electrochemical label with a traditional washable fluorescent agent. Liu Yongquans mouth twitched: I suddenly felt that...the price I proposed during the negotiations a few days ago seemed a bit too dark..." ??Even though I dont feel guilty about making money from foreigners, it still feels a little weird. At this time, Chang Haonan suddenly couldn''t hold it in anymore and lowered his head and laughed. Uh...what are you laughing at? Nothing, I thought of something happy. Whats the happy thing? "I suddenly remembered a story I had heard before. It was said that a foreign engineer was invited to a factory in our country to repair a machine. After he arrived at the site, he walked around the machine and then struck a spot with a hammer. , and then charge $10,000 for opening an order. Uhthen what? "Then the factory manager questioned why he charged so much for knocking. The other person replied that he charged one dollar for knocking once, but if he knew where to knock, he would charge $9,999." Chang Haonan finally calmed down his smile: I think we can ask DoubleTree to write a reverse version this time. The French will charge one euro for changing the marking method, but I know why they charge 99,999,999 euros for changing the marking..." Pfft Liu Yongquan couldnt hold back after hearing this... It is also on this day. Northern coast of the Black Sea. Nikolayev Shipyard. With a loud whistle from the pilot ship, the Varyag, which had completed unmooring, slowly left the outfitting dock where it had been berthed for more than ten years, driven by three push boats and two tug boats. ??At the forefront is the tugboat Nikolay Chikel hired by Lutron Group from the Russian Navy. After leaving the port area, it will be responsible for towing the giant ship behind it all the way to the far east. ?In the cab of the tugboat, Zhu Yuzhou, the Chinese representative in charge of the return mission, was looking seriously at the navigation plan drawn up in front of him. Since the Suez Canal Management Agency has clearly refused the Varyag to pass through the canal, they had to choose to go around the Cape of Good Hope at the southernmost tip of Africa, which added 6,500 nautical miles to the voyage. Moreover, the sea conditions near the Cape of Good Hope are complicated, which is difficult for a ship without power. It also means taking greater risks. ?Of course, no matter what, this is at least a solution. What worries Zhu Yuzhou even more is the Bosporus that he will face in a few days. Unlike the Suez Canal, where there are alternatives, there is no way around it. The good news is that Trkiye did not explicitly deny the passage of the tug fleet as Egypt did. The bad news is, they didnt explicitly agree either. In fact, according to internationally accepted navigation rules, since the Varyag at this time obviously cannot be regarded as a "warship", its entry and exit into the Black Sea should not be restricted. ?This is also the main reason why Luchuang Group chose to let the fleet set sail as soon as possible. But Zhu Yuzhou, who has been living at sea all year round, understands that the actual situation is not that simple Legally speaking, the Varyag obviously cannot be regarded as a "merchant ship" with immunity stipulated in the Montreux Convention, and China is not a Black Sea coastal country. If Turkey really wants to refuse passage, it will definitely find a reason. From a practical point of view, international navigation rules are often not applicable. ?For example, the Suez Strait can prevent you from crossing even without any reason. The last part is obviously someone who is making trouble. ?However, for Zhu Yuzhou, the person in charge of the scene, there is nothing he can do no matter how worried he is. ????????????????????????????? Since Hijikatas attitude is ambiguous, it means that they are not really trying to block you from letting you pass, but they want to negotiate terms. As for how to talk about it specifically... That''s something he can''t control. At the same time, the shore. ?An old man with gray hair and a slightly stooped figure stood on a watchtower, watching the Varyag''s mast disappear little by little at the end of the line of sight. ? Yuri Ivanovich Makarov. The previous director of the Black Sea Shipyard. In the end, they are all gone... ?He blinked his slightly cloudy eyes, as if traveling through time and space, he saw the grand occasion of three aircraft carriers being built here at the same time 10 years ago. But now, people and things have changed, and all that is left in the shipyard is dilapidation and desolation. Yuri Ivanovich, what has happened is that it is not necessarily a bad thing. Behind him, Valery Babich sighed softly, gently held the old factory director''s arm, and prepared to take him away from here: Rather than letting this ship soak in the sea water and completely rot, it is better to let it go somewhere else and continue to complete the mission of the year. Makarov sighed softly. ?How could he not know this truth? But when people get old, they will always think about the past. He could not control himself from imagining what the situation would be like if all three aircraft carriers were put into service if the alliance had not disintegrated. Actually, I think you should consider going to China with us. Babic supported Makarov and slowly walked down the observation tower along the rusty iron circular staircase: At least over there, you should be able to see the day the ship is finished. ?The first two batches of shipyard employees who joined the Friendship Plan have already arrived in China with their families. Originally, Babbage should have been on the first batch of lists. But he insisted on waiting until the Varyag left port before leaving, so he stayed until today. "never mind" Makarov replied softly: Im old, my body is no longer good, and I cant play any role. Even if I go, its just a decoration... Having said this, he turned back again, looked at the empty skyline, and then looked at Babbage beside him: Valery Vasilyevich, let you continue the work we did not finish back then (End of this chapter) Chapter 803 Lets dance Chapter 803 Lets dance ?Originally, if it were normal, Chang Haonan would have stayed in Shengjing for one night after completing the airport pick-up. But the situation today is quite special. December 31, 1999. Strictly speaking, the last year of the 20th century is 2000, not 1999, and the first year of the new century is not until 2001. But people invented the concept of "millennium", which made this day very popular. ?At this time in the last life, Chang Haonan was still a struggling graduate student who was losing a lot of hair while working on his master''s thesis, so naturally he had no special experience. But now he discovered that activities related to the Millennium New Year... There are quite a lot of them. And it is generally celebrated by all sectors of society. ?So much so that he had to attend a social dinner It was jointly organized by several military-industrial groups in Beijing, including the Aviation Power Group. The original purpose was to celebrate the new millennium and to bring an end to the fruitful 1999. It is equivalent to a joint celebration banquet. ?Of course, if this is the case, then Chang Haonan will not participate if he does not participate. Among the groups many leaders, he is the only one missing. But as the organization went on and on, it also included the link of networking with other units in Beijing. To put it bluntly, it is to help older men and women who are not yet single to solve their personal problems. ?Originally, this kind of activity would be very embarrassing if the leader is present - The participants and leaders were embarrassed. But it is always organized by the unit, and leaders must be present. This year specifically, the situation is a little different. ?Chang Haonan, as a member of the aviation power group team, perfectly meets the above three conditions at the same time. Older, single, young. Thats right, in 1999, it was already a bit late to be 25 years old before you had solved your personal problems. Although considering his Ph.D., this age is not that exaggerated. But does it matter? It does not matter. The important thing is that others held a meeting, and in the end, in the absence of Chang Haonan himself, the decision was logically made to let him go to the gathering to speak a few words on behalf of the ten military-industrial groups. So, Chang Haonan had no choice but to rush back to the capital that afternoon after finishing his business... The entire event was held in a hotel in Beijing. It directly covers two semi-open halls on the entire floor. In this way, you can celebrate and socialize at the same time without delaying both. Chang Haonan changed his clothes and took a car to the hotel. While complaining in his mind that some little genius came up with this idea, he found the venue on the 6th floor under the guidance of the hotel service staff. Then, he saw Tang Lintian not far from the elevator entrance. ?The other party obviously also saw Chang Haonan who had just stepped out of the elevator, and went straight to greet him. Professor Chang, everyone is waiting for you. Principal Tang? ?Chang Haonan was a little surprised, but still shook hands with the other party: How did you As for friendship, there are many young comrades in the school who need this, so as the principal, I have to come over. Of course Chang Haonan didn''t believe this. ??In addition to them, there were also some theater, song and dance troupes and other units who came to the party this time, and I didnt see all their leaders coming. So, he probably considered that there are people who can speak to several military-industrial groups today, so he came to get acquainted with them. After all, about 60% of Beijing Airlines graduates enter these units every year. There is no harm in building a good relationship. Chang Haonan was dragged all the way into the venue on the east side of this floor. As he was about to enter, a staff member handed him a speech. Then, Tang Lintian patted him on the shoulder: Professor Chang, I, as an old man, will not interfere with your young peoples affairs. I will go over there to drink first Then he left him alone at the door and went straight to the other side where a group of middle-aged people gathered. ?Chang Haonan looked at the other party''s back, and then at the two pieces of paper in his hand. ?At this point, he couldn''t let go, so he had no choice but to bite the bullet. When Chang Haonan appeared on the stage in front, the originally lively scene suddenly became quiet. About two seconds later, thunderous applause erupted. There are even those who are closer to the front and have already put on a posture of eagerness to try Aviation Power Group has a young and promising leader. This matter is public, so many people know about it. ?Of course Chang Haonans specific situation will definitely not be posted on the website. But on todays occasion, its really hard not to make people think about a question. Mr. Chang, is there a possibility that he is still single? ?At this time, Zhu Yadan who was following behind was more nervous than Chang Haonan himself. Dear friends attending the event, good evening everyone! Since it is an activity aimed at making friends, the atmosphere must be created in a relaxed direction. Even the leaders speeches are the same. This is also the main reason why no one has been willing to show this face in the past. Its not that I cant keep my figure down, its just that as a group of middle-aged and elderly people in their fifties and sixties, its really difficult to show a lively look. ??If you insist on pretending, it may lead to a dark history. ?However, Chang Haonan is really only 25 years old after all, so there is nothing wrong with doing this kind of warm-up job. Fortunately, the speech was not long, and Chang Haonan spoke quickly, so it only took less than five minutes to finish the opening session. Finally, on behalf of all the organizers of this event, please allow me to wish you all a great evening! He finished the last sentence, then handed the microphone to the real host next to him, and then prepared to run away. ??But this time the social activities have officially begun, and its not that easy to leave. Professor, do you want to dance together? A familiar voice came from behind Chang Haonan. He turned around and saw Yao Mengna wearing a dress. As a single young female teacher at Beijing Hang University, it was expected that she was drawn to participate in this event. ??But being invited to dance by his former senior sister, current colleague and subordinate was obviously not in Chang Haonan''s plan. The bigger problem is "But" ?Chang Haonan looked around. Yao Mengna''s aura obviously scared off many people who were eager to try, so except for her and Zhu Yadan, the rest of the people stopped a few steps away. In fact, as a normal person, Chang Haonan can also see what Yao Mengna thinks about herself. It is naturally impossible to say that we hate each other. ?But on the one hand, he feels that he is indeed still young and should devote his energy to work first, and not worry about personal issues. After all, his situation is special, and it is impossible for the organization to abandon him because he has no family, as it does to most people. On the other hand, Chang Haonan, who has been single for more than 40 years in his previous life, is actually a little afraid of this kind of thing... It is the fear that someone may suddenly break into your life and change all your past habits. So, he was still prepared to keep a low profile. But I cant dance ?Chang Haonan gave this somewhat embarrassing answer. This is not entirely an excuse for refusal. But he really doesnt know how. But now that Yao Mengna has stood up, it is obvious that she cannot give up easily: Its okay, I can teach you. ?She smiled: Rather, after so many years, I have finally found a place where I am good at but you are not good at. It is not easy..." Having said this, if I refuse again, I will really become a poet of the Ministry of Posts and Telecommunications. Chang Haonan nodded: Okay, but I might step on your toes. ?Yao Mengna on the other side was visibly relieved when she heard the affirmative answer. It took a lot of courage for her to take the initiative to stand up today. If she was rejected by Zhiqiu, she really wouldn''t know how to face the opponent in the future. Fortunately none of this happened. It doesnt matter, as long as you dont let your shoes fly out. She replied with a smile. (End of this chapter) Chapter 804 An old comrade’s bold idea Chapter 804 Old Comrades Bold Idea ?As the music sounded, Yao Mengna led Chang Haonan and quickly came to a specially set aside area in the middle of the venue to start on-site training. Just do this first, this, and then this ??With a real dance partner as a sparring partner, a few basic movements are not complicated for those who have at least a basic foundation in broadcast gymnastics. ?The only troublesome thing is that the ballroom dance movements are designed based on the height difference between men and women, which is about 10 centimeters. ?Yao Mengna is tall and can almost reach Chang Haonan''s eyebrows after wearing high heels. So sometimes you need to bend down to do it. I didnt expect you had practiced this before? Actually, Chang Haonan soon discovered that Yao Mengna was not a master, but when she jumped, she would not be able to step on her left foot with her right foot. Even if it is not a matter of temporary study, it should only be learned for a short period of time. Fortunately, as a social activity, the focus of everyones attention is obviously not on the quality of technology. "That was...when I was an undergraduate, the school was allowing the formation of student clubs. At that time, everyone was asked to sign up for at least one. I saw that the dance club was the first one in the selection list, so I signed up." Yao Mengna guided Chang Haonan to keep up with the music and replied: Actually, I originally thought that the dance club would teach some classical dance, but when I finally entered, I discovered that it was ballroom dance. ?Chang Haonan thought for a while and then continued: Most of the dances are young martial arts. Those who can become a monk and start practicing halfway are probably the only ones who can practice ballroom dancing... ??Some people who were eager to try it out just now realized that the two of them had obviously known each other for a long time, and finally the surroundings became a little quieter. I heard from Principal Tang before that you also received an invitation from the American Mathematical Society to attend their annual meeting? ?The occasion here is obviously not suitable for talking about work-related topics, but the matter Yao Mengna asked seems to be closer to life or gossip, so it doesn''t seem so inappropriate. Uhhe probably heard the second-hand news from somewhere. Chang Haonan felt helpless after hearing this: Its not the American Mathematical Society, its Princetons Annual Mathematics Meeting Of course, judging from the number of attendees, its about the same To be honest, if it werent for the inconvenience of my status, I would really like to see how capable those top mathematicians are. Yao Mengna naturally understood the specific meaning of "inconvenience" in Chang Haonan''s mouth, so she suggested with a smile: If you really want to, I think you might consider asking Principal Tang to come forward and invite some famous scholars to visit or give lectures in the name of the school? At this time, Beijing Airlines has not been included in the list of sanctioned entities, so those non-confidential majors can still conduct normal foreign academic exchange activities. ?Its just that Communication requires the subjective will of others. Chang Haonan shook his head: Our school has almost no voice in the mathematics community, and Principal Tang is not a professional in mathematics research. It would be hard to invite those math geniuses to come over. After finishing speaking, he added in his heart: Actually, if you spend money to pay huge appearance fees, its not hopeless... ?Of course, it would be a bit embarrassing to say this. Even in the mathematical community, there are only a few people who can truly treat money like dirt. However, this is a tacit understanding and is not suitable for public discussion. Furthermore, Chang Haonan is only "interested" in mathematics at present, and it is impossible for the school to spend a lot of money rashly just for this personal interest. ?Although the funds in the past two years have indeed been much more abundant than before, for most projects they are far from the level of deep pockets, and they still have to be calculated carefully. It was true that it didnt exist in the past, but now it exists ?Yao Mengna raised her head slightly, looked into Chang Haonan''s eyes and said. "Well" The latter felt a little strange being stared at by her like this, and immediately changed his gaze: I just published a paper in the Annual Journal of Mathematics. At best, I can only be considered a nouveau riche... In fact, I am not even a nouveau riche. Its not like I won the Fields Medal. In short, not only Beijing Airlines, but also our country is still relatively lacking in theoretical exploration. Of course, it is not yet time to pay attention to this aspect..." After all, he was a rookie with a purely cute new configuration. By the time the first song ended, Chang Haonan already felt that his body was stiff and his limbs were sore. The level of fatigue was comparable to staying up late for a week to complete the project. Yao Mengna still has some unfinished ideas, but she also knows that today has made a good start. At this time, it is necessary to advance and retreat in a measured way. So he followed Chang Haonan out of the dance floor very generously. Okay, I should be waiting for you over there, so Im going to have something to eat. After saying that, she raised her hand to help Chang Haonan adjust his slightly wrinkled collar. ?Looking at Yao Mengna''s figure disappearing into the crowd, Chang Haonan sighed softly, turned around and prepared to leave. ?However, as soon as he turned his head, he saw Xu Yang, wearing a women''s suit, standing behind him. Looks like he hasnt just arrived, but has been here for a while. ?However, Chang Haonan breathed a sigh of relief. Researcher Xu, long time no see. Compared to Yao Mengna, who has "unfair intentions", although the relationship between Xu Yang and him is also very good, it can still be felt after being in contact for a long time. The former''s mentality is closer to "after many years of seeking defeat alone, I finally met a partner of equal strength." . In other words, it is a purely working relationship. Its just that Xu Yang himself is probably a little lacking in emotion, so he sometimes behaves a little strangely. The other partys performance also confirmed Chang Haonans thoughts. Mr. Chang, you are not particular about it ?Xu Yang shook his head with sadness and anger: "You published an article in the Annual Journal of Mathematics without making any noise. How come I didn''t realize that you were doing research on differential geometry before?" "You are not wrong. You have indeed not done any research before." Chang Haonan explained as he walked towards the door: I just accidentally discovered something new in the past few months because I encountered some project problems... "well" Xu Yang is used to this kind of situation: "This is you. If someone else said this, I wouldn''t believe anything you say..." ?After just a brief chat with Xu Yang, Chang Haonan quickly came to the "middle-aged and elderly market" next door. "Hey, Comrade Haonan...why...are you here so soon?" The first person to see Chang Haonan was Zhu Linyu, general manager of the Aviation Power Group. ?? is also one of the "culprits" who arranged for the former to deliver a speech elsewhere. Mainly because he was older, he did not participate in the nearby drinking party. Well...its just a speech. There are only a few words in total. Its over after I say it... Chang Haonan picked up a wine glass filled with sparkling water from the side and touched it lightly with Zhu Linyu, who also had water in the glass: Leave that situation over there to the young people ?Zhu Linyu glanced at Chang Haonan with a strange look. In fact, most of the "youth" participating in the association today are older than Chang Haonan. But from the perspective of the group leader, it seems normal to say this... Its a bit strange. ?So he decided to change the subject. Since the people here are all from within several military-industrial groups, the topic can be relaxed a little: "Shengjing...I mean the cooperation with the French to develop the M88. How is it progressing now?" "very smooth." Chang Haonan said and drank all the liquid in the cup: Or rather...a little too smooth..." Following that, he spent about 5 minutes roughly recounting Snecmas operations to maximize subjective initiative. ?Although Zhu Linyu was not present, even though he was just listening to Chang Haonan''s words, his lips almost reached the sky. He belongs to the second generation of Chinese aviation people. It can be said that 90% of his career has been spent digesting and absorbing foreign technology The first 45% are from the Soviet Union, and the last 45% are from Europe and the United States. ??Now, as I am approaching the final stage of retirement, I have witnessed with my own eyes this scene that can be called a rebellion against Tiangang. It is impossible to say that I am not happy. Comrade Haonan. ?Zhu Linyu hesitated for a moment, and then tentatively said: In the field of aerospace development, the French have always had deep ties with the United States, such as the CFM Group, which was jointly established by General Electric and Snecma. Do you think its possible that this incident could lead to a breakup between the two of them? ?Chang Haonan saw through what the other person was thinking almost instantly In the field of aviation development, although the French are seriously scientific, they still have some special skills. This means that although it is difficult for them to develop high-level aviation engines completely independently, they can serve as a boost in the research and development process of other countries and play a very effective supporting role. As an analogy, it is roughly equivalent to a bard who buffs teammates. Therefore, if this incident can be used as an opportunity to completely tie the French aviation industry to China''s chariot, it will undoubtedly be of great benefit to future development. The idea is a good one. Its just I have to say... the chances are very slim. Chang Haonan made a decisive judgment: Actually, the reason why the M88 engine matter has reached this point is largely due to errors in judgment on the part of General Electric, rather than because they really want to force the French to come to our side. "In any case, as a NATO member and a European country, France cannot completely break up with the Americans, at least in the short term. Even this time, the dispute between GM and Snecma is basically limited to military use. fields, while the operations of more important civilian fields, such as CFM Group, have not been affected. "And I speculate that in order to appease the French, the Americans will definitely give them some sweeteners in the aviation field. In this way, even the best result for us is that the French stay in the middle and do not help either. " After some analysis, Zhu Linyus fantasy of letting himself go was dispelled. Fortunately, the old comrades have been here for so many years, so they still have this strength. And no matter what, this wave is considered a win. There is a first time and a second time for cooperation. ??As long as you wield the **** well, there is no corner that cannot be dug down. Well, you are the chief planner, so you should worry more about the groups strategic line. ??Zhu Linyu said and patted Chang Haonan on the shoulder: The future belongs to you young people... (End of this chapter) Chapter 805 Another plan of J-10 Chapter 805 Another plan for the J-10 At this time, another group of people who had gathered nearby and got excited about drinking also discovered Chang Haonan who was hiding in a corner with Zhu Linyu and chatting. How about it, Comrade Haonan. ?Lin Zuoming took the lead and walked over here. His loud voice was recognizable enough even in the noise: Didnt you stay at the association for a while? I heard Sister Shen from the groups labor union say that many old comrades with daughters at home asked him about your situation... After he finished speaking, friendly laughter suddenly broke out around him. No, noIll finish speaking Before Chang Haonan finished speaking, he was interrupted by Tang Lintian next to him: "No, I just went over to take a peek and found that Mr. Chang seemed to be dancing with a young lesbian..." Chang Haonan''s eyes widened when he heard these words, and he was shocked. ??He clearly watched Tang Lintian turn around and leave before taking the stage, but the other party responded with a counterattack? A principal, instead of reading the textbooks, is interested in the art of war? Ahem He had no choice but to cough twice to demonstrate the embarrassment of being exposed: I was planning to say a few words and then leave, but I was stopped by an acquaintance In a joyful atmosphere, someone suddenly said half-jokingly: Comrade Haonan, if you really cant make up your mind, I happen to have a niece who just graduated from college last year and is working in the United Front Work Department of the Beijing Municipal Party Committee Chang Haonan turned around with his head full of black lines, and what came into his eyes was a face that impressed him slightly. ??He vaguely remembered that the other person seemed to be a person in charge of the nuclear industry system, because he accidentally saw the photo in a certain material when he borrowed the equipment. But I cant remember whether it was a nuclear industry group or a nuclear construction group. As for the name, it is even less likely to be remembered. ?This made him a little confused for a moment as to how to continue the conversation. Generally speaking, leaders of central enterprises at this level have been trained in different positions for 20-30 years. In this long process, intricate interpersonal relationships will be formed. Chang Haonan is a sudden rise. It has only been less than four years since he was unknown to today. Many people, especially those outside the aviation industry system, have never had much contact with him. Fortunately at this moment, Tang Lintian from the side intervened: Hey, Lao Pan, dont interrupt. We agreed not to interfere in the personal issues of young comrades ?Chang Haonan frowned, feeling that things were not simple. ??In the moment when he was away, they seemed to have done some shameful deeds without telling themselves... ?However, Tang Lintian''s paragraph also reminded him that the person who just spoke seemed to be named Pan Shengyan. The second-in-command of the nuclear industry group. You dont have a daughter, why are you so anxious ?Pan Shengyan pushed Tang Lintian''s arm away. ?At the moment, there is no such thing as a prohibition on alcohol, so halfway through the dinner, although it is not to the point of being drunk, it is basically a bit tipsy. I havent, but maybe the young people have some ideas. Im embarrassed to tell us old men... In fact, although Tang Lintian didnt see clearly what the person opposite Chang Haonan looked like just now, he basically made a good guess Since the first time he heard Chang Haonan speak about numerical calculation methods at a team meeting, he had already been thinking about which young female teacher to use to keep her in school. After all, the good news does not flow to outsiders. Beijing Airlines current status as one of the C10 alliances was at least 80% achieved by Chang Haonan. Its just that I havent found the right candidate. ??But today Tang Lintian suddenly realized that he seemed to have been in a state of darkness in the past, ignoring someone who had the closest relationship with Chang Haonan... So, we must not let others poach us. ?At this time, Chang Haonan found that he seemed to be the center of the gossip storm. In order to get out of it quickly, he had to quickly think of ways to change the topic. Just in time, he looked around and found that one person who was supposed to be here was missing: Then whatwhy didnt you see Mr. Liang Zhuoping from the Aviation Industry Group today? Sure enough, this method has been tried and tested repeatedly. ?Lin Zuoming, who was the first to start the "war" just now, said seriously: I went to Chengdu yesterday. Not only Mr. Liang, but also almost all the leadership team from the aviation industry followed me. ??Although the confidentiality level of the people here is high enough and the topic can be opened up a little, it is not a confidential situation after all, and it is still impossible to treat it as if it is in the office. ?But for Chang Haonan, its enough to stop there. ?Although the Chengdu side is responsible for a lot of models, the only one that can allow the top leader of the group to go there in person and stay for several days is of such importance is the J-10. To be precise, it is the second version of the J-10 plan after major changes. at the same time. Rongcheng. ??With the last ray of light before sunset, Song Wenchong and Yang Wei led Liang Zhuoping and his party into the final assembly workshop of Factory 132. ?At the two workstations on the left and right closest to the door, there are two aircraft parked symmetrically that have completed final assembly and are only to be pulled away from the production line by tractors. Even people who dont know anything about airplanes can find that the two airplanes seem to be very different from each other at a glance. The most obvious thing is that the aircraft on the left is significantly "fatter" than the one on the right. Moreover, the lip part of the air inlet has only a bulging cocoon and no common mechanical adjustment device. But if you look a little more carefully, you will find that many basic features of the two aircraft seem to be very similar Canard enlarged delta wing, single engine and single vertical tail, belly air intake... In particular, the relative positions between the front wings, main wings, vertical tail and ventral fins are almost exactly the same. ?Hence, anyone with a discerning eye will definitely be able to see that these two aircraft with completely different appearances are actually related in blood. For Liang Zhuoping, who has just entered the workshop, the most eye-catching thing is actually Under the wider fuselage of the aircraft on the left, two huge aerial bombs were hung side by side. Of course, its a model bomb. From the size point of view, it must be at least 1500kg. For the previous version of the J-10, only the innermost pylon of the wing could theoretically carry external stores of this size. But because there is no electrical interface there, only unguided iron bombs can be carried. Obviously, it is too abstract for a medium-sized fighter to engage in aerial bombing. So, it can basically be considered that the old J-10 has no ability to mount more than 1 ton of ammunition. After the updated design, at the expense of eliminating the belly auxiliary fuel tank, it can actually carry two engines at a time. This is obviously a huge improvement for multi-purpose combat capabilities. And, thats not all. On the side of the air inlet, there are two more light hangers that are not eye-catching. ?There are two 12 model bombs there ?Due to space problems, this position cannot mount the PL-11 with a larger wingspan, but fortunately this model should be just a transitional one. Active radar-guided air-to-air bombs will soon become the main equipment of the Chinese navy and air force. ?Coupled with the same two auxiliary fuel tanks as before under the wing and the combination of two middle and two near, from the angle of the nose, it can even give people the feeling of claws and teeth. ??It is in sharp contrast to the delicate appearance of the one next to it... This is the J-10A aircraft that has undergone major changes. At the cost of losing some extreme speed and high-speed performance, it has gained a larger bomb load and range, which is more in line with the needs of a new generation of fighter jets for multiple uses. Song Wencong followed several group leaders and introduced. After speaking, he pointed to the original design on the other side: "This is the fourth prototype of the initial design plan. The first three have been tested for nearly 3,000 hours in total, which verified the feasibility and stability of the airborne equipment and the canard-delta wing structure. For this plan , we will not waste it and will use it for export under the name of J-10E..." ?While listening to Song Wencong''s introduction, Liang Zhuoping stepped forward, circled half a circle around the aircraft, and came to the rear part of the aircraft. The tail nozzle of the J-10A presents a complete silver ring, and there is no convergence adjustment piece design. This is the most typical feature that distinguishes the turbofan 10 from the AL31F in appearance. But Liang Zhuopings face didnt look good The Turbofan 10 can be said to be the greatest achievement of China Aviation Industry so far. However, this achievement already belongs to the brother unit next door. ??Although it is said that group restructuring is a requirement from superiors that must be implemented, his scope of authority was instantly reduced to half of its original size. It is absolutely false to say that he does not feel uncomfortable at all. ?It''s just human nature. At this time, Yang Wei on the other side also noticed Liang Zhuoping''s eyes constantly wandering around the tail nozzles of the two aircraft. So, he quickly introduced: "In order to make up for the increased weight of the A-type aircraft, Mr. Chang Haonan of the Aviation Power Group specially designed a turbofan 10B engine with increased maximum thrust, which can ensure improved performance in the basic air combat configuration of 2 medium and 2 close. The overall mobility of the model is stronger than the previous plan. This reflects high emotional intelligence. In fact, the turbofan 10B was the original plan designed by Chang Haonan, while the turbofan 10A was specially designed to reduce the thrust and increase the service life of the J-11B because it was impossible to achieve supercruise even if the thrust was increased. But with Yang Weis explanation, it sounds like the Turbofan 10 project team has made work adjustments in order to coordinate with the No. 10 project. Sure enough, Liang Zhuopings own mood, as well as his views on Chang Haonan and the entire Aerospace Power Group, instantly improved several notches. The expression also softened. Did everything go well with the ground test of the engine? "all the best." Song Wenchong replied: Both the 606th Institute and the Liming Factory sent technical teams to assist us in on-site testing. Moreover, our quality control level has also been significantly improved in recent years, and the situation of Unit 1001 will never happen again. ?When Unit 1001 first rolled off the production line, if the surge monitoring system developed by Chang Haonan had not come into play, the engine might have been damaged during ground testing. ?This incident has also become a watershed for the aviation industry system to carry out professional quality control. ?Liang Zhuoping nodded with satisfaction, then turned around, glanced at the leaders of Project No. 10, and then spoke slowly: In accordance with the instructions of the General Armament Department and the Commission of Science, Technology and Industry for National Defense, the appearance of the Project 10 prototype at the 50th anniversary National Day military parade seemed to have caused some misleading to overseas intelligence agencies. Although it is not yet certain whether this misinformation can be used to my advantage, my superiors still require that the test flight of the improved J-10A prototype should be conducted as low-key as possible. Do you understand? ?Song Wenchong and Yang Wei looked at each other and replied in unison: "yes!" (End of this chapter) Chapter 806 Is there really a big shot coming? Chapter 806 Is there really a big boss coming? In fact, this request to keep a low profile as much as possible was suggested by Chang Haonan and Ding Gaoheng after the National Day military parade. ? Its just that his current identity on the surface has nothing to do with the Aviation Industry Group. If he spoke directly, it would inevitably be suspected of interfering in the daily work of his brother unit, so he specifically asked the latter not to mention his name. The reason why I suddenly came up with this idea was naturally inspired by the incident of the Turbofan 10 essay. The new engine installed on the J-11 was a huge surprise to almost everyone, so no one could figure out the details of this model for a while, and relevant intelligence analysis was mainly based on past evidence or simply fictional literature. . Such confusion ultimately led Snecma to find China with their M88 engine, and also led to the Americans'' failure to salvage this cooperation at the last moment that was beyond everyone''s expectations. The situation of the J-10A is actually similar to that of the WS-10 - ??Now the whole world knows that China has a single-engine medium-sized third-generation fighter jet. It also knows what this model of aircraft looks like. It even knows that it is called the J-10. But only a very few people know that the J-10 also has an isomer. ?This news may not be able to be kept secret for a long time, but the greater the information gap and the more confusing the news circulating outside, the more likely it is that some unexpected benefits will be obtained. As for the specific implementation... Basically, on the one hand, we should pay close attention to wall-climbing parties, and on the other hand, we should try to fly in the early morning or evening hours. Considering that the basic characteristics of the old and new J-10 are relatively similar, if you take photos at a longer distance, there is a high probability that you will not be able to distinguish the details of the two models if the clarity is insufficient. ?Of course, to be honest, these operations are still because there is no absolute technical advantage. Otherwise, just like the United States now, as long as you announce any project, many countries will rush to ask for cooperation. ?There is no need to waste such effort... After announcing the matter, Liang Zhuoping turned his attention back to the two planes. Speak of the word, Comrade Wen Cong. He looked at the J-10E a little further away and asked Song Wenchong: I think foreign customers...especially those who can only maintain a small air force, may value the multi-purpose capability of one aircraft. Can the previous design really meet their requirements? We have also discussed this matter. Song Wencong quickly explained: "The biggest problem with the old plan is actually the insufficient range. Especially for our country, in actual combat situations, the two innermost attachment points of the wing are almost bound to the auxiliary fuel tanks. It is also out of this consideration, and in order to save some The wing space accommodates fuel, and there was no electrical interface designed for these two locations from the beginning, only the fuel lines were connected. " "But for foreign users with limited land area, the range without auxiliary fuel tanks is not unacceptable, so we plan to connect the two inner wing pylons to the data bus on the mass-produced model, so that they can To a certain extent, it solves the problem of insufficient multi-purpose capabilities. ?At this time, the F16 is not equipped with a conformal fuel tank, and the range benchmark of single-engine medium-sized aircraft is not high. And at least in the short term, the countries that will buy Chinese fighter jets will still focus on homeland air defense as their main mission. Even if they want to strike on the ground, the target will be limited to within or near the national border, and the need for range is indeed not urgent. So if the J-10E makes up for it in this way, it wont show any particularly eye-catching shortcomings. Therefore, after hearing this, Liang Zhuoping nodded with satisfaction, and then said: "Before I came here this time, I heard Director Ding say that the Power Group has exported its third-generation aero-engine technology to Europe, and we cannot lag behind in this regard. Project No. 11 cannot be used for export according to the agreement. So, it depends on your performance. In fact, the joint development of the M88 engine is basically a well-known fact, but everyone within the military industry system knows some relevant rumors. After all, aviation is known as the crown jewel of industry, and France has been one of the main importers of China''s aviation technology in the past. ??Now we have reverse technical support, which is equivalent to the story of the poor boy''s counterattack in Hedong and Hexi in the fifty years. Writing something that everyone calls old-fashioned in the book, but it happens in reality... ?Everyone feels happy. ?Liang Zhuoping moved Ding Gaoheng out, which can only be said to give this matter a real hammer, and it can also be regarded as an incentive. After a slight pause, Liang Zhuoping continued: We can give full play to our advantages in channels. After all, the Aviation Technology Group is still on our side. Those countries that have purchased air force equipment from our country in the past should also have easier communication. ?Song Wencong didnt answer and just nodded. What Liang Zhuoping said cannot be said to be wrong. Its just not very maneuverable. Aviation Technology does have contact channels with departments or personnel responsible for arms procurement in many countries. But the problem is that the weapons and equipment China exported in the past, especially air force equipment, were at the low end, and the users were basically countries with little economic strength. No matter how affordable the J-10E is, it is still a serious third-generation aircraft and cannot be sold as cabbage. In other words, we must open up new customers. When it comes to finding high-value customers, Mr. Chang from next door seems to be better at it... ?Of course, these difficulties can only be thought about, and it would be a bit pretentious to say them out loud. It is always a worry about happiness. In the past, when only J-7 and Qiang-5 could be sold, how could it be our turn to ponder this kind of question... In short. The millennium has arrived peacefully. ??Chang Haonan also spent the three-day New Year''s Day holiday peacefully and contentedly, and then re-equipped and prepared to face a new challenge. ??And by the way, I can help my disciples start a project. ?Of course, for him, there is no need to bother Ding Gaoheng with such "little things". ? Considering that it was just in time for the initial project report, he only needed to see if any relevant companies were looking for Party B through the Seiko Plan platform. Therefore, after making a brief appearance in the Aviation Power Group, Chang Haonan returned directly to Beijing Hang University. As a result, before his **** was even warmed up, he saw Tang Lintian walking into his office from the outside in a hurry. Principal Tang? Looking at Tang Lintian who was sweating profusely in the cold winter, Chang Haonan felt a little puzzled and asked half-jokingly: Are you... worried that our computing center will be affected by the Y2K bug? Period before the turn of the millennium, the so-called "Y2K crisis" was a very hot topic. So much so that some professional computer researchers have begun to worry In some very early computer systems, years were indeed represented using only two digits, so there would be errors in date processing after the transition from 99 representing the year 1999 to 00. ??And if this kind of mistake breaks out all over the world at the same time, a huge crisis may break out. But in fact, there are very few devices that will actually be affected by this, and most of them have ways to remedy it, and there will be no catastrophic consequences at all. Previously, it was completely unfounded worries, or in other words, it was just media hype. Hearing this question, Tang Lintian quickly waved his hand: Of course not...how could I believe that kind of thing... I couldnt get through to you just now, so I came here to inform you of an urgent matter. Hearing that it was business, Chang Haonan quickly regained his serious expression: I went to the Gang Group before and just arrived at the office. Whats the emergency? At this time, Tang Lintian finally recovered a little, at least his breathing had calmed down, and he said to Chang Haonan word by word: Gregory Perelman, a researcher at the Steklov Institute of Mathematics in Moscow, took the initiative to contact our school and said he hoped to come for an academic exchange visit. It was quiet in the office. Uhso? Chang Haonan looked blank: Justthats it? (End of this chapter) Chapter 807 Husky among dogs, junior high school Chapter 807 Husky among dogs, middle school... ??When he saw Tang Lintian hurried in just now, Chang Haonan thought it was the Torch Laboratory, or that some project had a serious problem. ?Especially when the former said that he came to see him in an emergency, to be honest, his heart even skipped a beat. result Good guy, just a normal scholar coming to visit. How do you describe this feeling... Just like I had already built four lines of defense, waiting for the enemy to attack in a large scale, and was ready to fight to the last man. ??As a result, the opponent charged up a punch and didn''t even penetrate the warning line. But Tang Lintian obviously doesnt think so. Nothats what it means His face was a little tense: "This is a big deal, okay? Just an hour after I got to work today, the principals of Qinghua University, Yanda, Jinling, Aurora... basically the top schools in the country in terms of mathematics majors almost had my phone numbers ringing. " Thisokay Chang Haonan wiped the sweat from his forehead: So they called because ?Tang Lintian waved his arms excitedly: Of course I want to ask how I invited Perelman here! Hey, what did you tell them? ?Looking at Tang Lintian who was as happy as a child, Chang Haonan was happy to be the compliment. And the former is also very cooperative: "I told the truth, saying that I didn''t invite him and he insisted on coming." "Then what?" Then they didnt believe it and insisted on saying that it was unethical for me to do things in hiding... They also said that after I set a time, I must inform them and they would also bring people over... ??That is to say, there are only two of them in Chang Haonan''s office. Otherwise, as long as there are two viewers, they will probably be rewarded with two coins after hearing this cross talk... Ahem Tang Lintian, who had regained a little normality, coughed twice: "Although Professor Perelman did not explain clearly why he thought of coming to our school for exchanges, I guess that since the founding of our school, Professor Chang is the only one who has been directly related to the mathematics community, so it must be you. I came here for you..." "Um." ?Chang Haonan touched his chin and said in a calm tone: "Actually... about half a month ago, Professor Perelman sent me an email to discuss the role of the article I published in solving the Poincar conjecture. Later, I sent him a reply. seal up." "ah?!" ?Tang Lintian was shocked at that time: Is there such a thing? Why didnt you tell me then? This way I can be mentally prepared in advance... You dont know, after I received the news this morning, my first reaction was that the other party was lying to me... Chang Haonan spread his hands and replied helplessly: "What''s there to tell you... It''s just a normal email exchange. If I just tell you every time an email like this comes, then you probably won''t have to do anything else." Its just that I didnt expect that the other party would come directly to do academic exchanges When he said this, Tang Lintian felt that it made sense, so he had to give up worrying about this issue for the time being: "Okay... no matter what, the other party must have come here because of you, so I have to ask for your opinion first about the itinerary. I can''t let him come over and not be here, otherwise it will become a joke in the academic world. " So what did Moscow say? When are they planning to come? ?Chang Haonan said as he opened the brand new 2000 desk calendar on the desktop to check the date. They didnt say. ?Tang Lintian shook his head: It seems that it can be done at any time, the time is up to us. Ohthis standard is indeed quite high... This surprised Chang Haonan, so he asked again: "As for the schools you just mentioned, since they have agreed to let others come over, they still have to stagger their academic activities." No need either. ?Tang Lintian is straightforward: No matter what academic activities they have, no matter who they invite, it is very unlikely that they will have a higher status than Perelman, so just say it and it will be over. If there is a conflict, let them turn it down! So exaggerated? Chang Haonan was really shocked by the importance that the domestic mathematics community paid to Perelman. "This is an exaggeration..." Tang Lintian said matter-of-factly: "He is a top mathematician in the world, and I heard that Perelman has a weird personality and rarely participates in such visiting activities. He has only been to the United States once before, and almost all universities in the United States offered him high salaries to stay. Next, I ended up going back to Moscow..." For such a person to come to our place for exchanges and visits, the weight is naturally different... ?Chang Haonan nodded, probably understanding what the other person was thinking. At this time, he also finished turning over the January part of the desk calendar. Then it will be at the end of January, whatever date it is. "good!" Tang Lintian clapped his hands, stood up immediately, said goodbye briefly, and left the office in a hurry. "well" Chang Haonan looked at the figure disappearing from the door and sighed, thinking that there was no need to be so surprised, the good days were still to come... Then he turned around and continued looking for projects suitable for Li Yabo... ?Later in the day. Black Sea. ??On the tugboat Nikolai Chikel, Zhu Yuzhou was holding a maritime satellite phone in one hand and looking at the navigation chart in front of him with a gloomy expression. According to the plan, they will pass through the Bosporus in about 18 hours at the fastest. But there is still no accurate attitude about Trkiye from the country. ?At this moment, the satellite phone in his hand suddenly made a beeping sound. He picked up quickly: This is Nikolai Chikel, please speak. ??A familiar voice came from the other end of the phone. It was Director Ye Junqi who was responsible for navigation planning and liaison tasks. ?Before Zhu Yuzhou flew to Nikolayev, the two had held many meetings together on the formulation of plans to return to China, and they were very familiar with each other. Nikolai Chikel, please slow down immediately, I repeat, slow down immediately! ?Ye Junqis voice was a little urgent: Sail as slowly as possible while ensuring safety. ??Zhu Yuzhou quickly signaled the captain next to him in Russian to reduce the speed, and then put the receiver to his ear again: "What happened?" ??The cost of a maritime satellite phone is as high as tens of yuan per minute, but at this time, he can''t care about that. Turkey suddenly questioned the way we passed through the Bosporus, believing that the risk of towing unpowered ships was too high. Once an accident occurred during the process, it would affect shipping throughout the Black Sea-Mediterranean Sea, so it refused us passage. " Hearing these words, Zhu Yuzhou''s heart sank. The thing he was most worried about happened. So what is the other partys request? ??Zhu Yuzhou said and looked at Captain Da Mao who was directing the tugboat formation to slow down. At this time, he was still a little lucky and felt that it might be possible to solve the problem through technical means. However, Ye Junqis answer directly dispelled this possibility: Hijkhi said that we should either equip the Varyag with power to self-propelledly pass through, or use a semi-submersible ship to transport it through. "This is impossible!" The outrageous request made Zhu Yuzhou shout out directly. ???If the Varyag can be installed with power at the Black Sea Shipyard, then the ship may not be in the hands of China at all. As for semi-submersible ship transportation, it is even more ridiculous. ?This is a 300-meter-long aircraft carrier...how can a semi-submersible ship transport such a behemoth. Obviously, this is not an attitude that wants to solve the problem at all. Dont be impatient yet. Ye Junqi comforted him and said: We are currently actively negotiating with the Turkish authorities, so we asked you to reduce the speed and help us buy more time. Okaybut we cant stop completely with such a big ship in tow. ?Zhu Yuzhou leaned down and looked at the chart with a magnifying glass for a while, and then said: Even at the slowest speed, we will enter the Bosporus in 40 to 45 hours. If we have not obtained the navigation permission by then, we will have to find a way to turn around and return. There was silence on the other side of the phone for a while. I know, we will do our best. Ye Junqi replied. (End of this chapter) Chapter 808 Different interests demands Chapter 808 Different interests demands The two unfavorable plans given by the Turks were obviously not prepared to let the ship go easily. But since the other party pretended to put forward a series of conditions instead of directly rejecting it like Egypt, it is not impossible to talk. ?However, what they really want is obviously not the two things on the surface. Perhaps he wants to make a profit from it. ?However, anyone with a discerning eye can see that Luchuang Group is basically a shell now, and there is nothing worth spending so much time on. Hence, the target of their blackmail is obviously the Chinese official. ?Of course, there are no moral issues between countries. It is nothing more than dialogue based on strength. ?Now that the matter has been made clear, there is no need for everyone to be secretive, and we can take off our vests and talk in person... ?So, under the pressure brought by the 40-hour countdown, the matter was quickly reported to the capital layer by layer. Next, it will be a head-to-head contest between the two sides. Including many other countries, they are also paying close attention to the development of this matter. First, it involves a semi-finished aircraft carrier that is entirely likely to be rebuilt. Secondly, we are also observing a sample. A sample of soft confrontation between countries of different sizes. In fact, Chang Haonans indirect intervention in the situation in the Balkans last year had a far-reaching impact even beyond his own expectations Although NATO unilaterally declared victory, anyone with a right mind knows that the Allied operation actually failed. In other words, a superpower assembled the most powerful military group in the world. Facing a medium-sized country with many internal and external troubles, it didn''t matter that it failed to defeat the opponent, but it was actually defeated by two stealth fighters. airplane. Of course you can explain that the multinational coalition forces are just superficial brothers, but in fact they have their own evil intentions. In particular, the Americans launched an attack on the euro almost immediately after starting the Allied Forces operation, and also carried out an "accidental bombing" This outrageous and ruthless operation of civilian buildings housing the media eventually led to the collapse of the attacker''s already fragile alliance. But no matter what, with such a huge advantage, it ended up in such a mess. It was absolutely a shameful thing to go around in circles. This leads to two results. First, after the end of the Cold War, the image of NATO''s heavenly soldiers and generals that it had managed to cultivate with great difficulty, if not collapsed, was at least greatly affected. Second, every country has begun to think about whether a big country, especially a big country that is not at a crushing advantage in strength, has any other options besides hard confrontation when facing a regional power with medium strength. The wave between China and Trkiye obviously fits this model. Chinas comprehensive national strength is undoubtedly advantageous, but it does not seem to have direct means of influence on the Mediterranean coastal areas. ?So, the process and results of this round of confrontation, or confrontation, are very interesting. However, the development of the incident did not go as various countries imagined, and the two sides immediately began "cordial and friendly" exchanges. Information collected from multiple sources shows that the atmosphere is eerily quiet. ?Ankara did not make further representations to the capital, and the latter was very patient and directly started a sit-in war. ??Some people have even speculated that Turkey, like Egypt, may have been threatened or tempted by a certain external power and decided to lock the Varyag tug fleet in the Black Sea at all costs... ?There is also speculation that the two sides have established some kind of communication channel that can avoid all outside detection, and negotiations are currently underway. In short, all kinds of rumors, either well-intentioned or extremely outrageous, began to permeate the entire world... But in fact, the situation is much simpler than outside speculation - That is, after announcing to the outside world that there are risks for tugboats passing through the Bosporus, Turkey has never been able to reach a consensus on what conditions it should impose on China in the follow-up negotiations. The factions headed by the Central Bank and the Ministry of Finance believe that the country''s economic and financial situation is in dire straits, and the most direct method should be used to let China pay a large amount of money, paid in hard currencies such as euros or US dollars, to ease the Asian financial crisis. Inflation caused by the crisis. ?This opinion has received support from the highest level. After all, in the past 1999, the Turkish lira experienced an astonishing inflation of more than 100%. If nothing is done, the national economy will soon spiral into the sky. The other group, represented by the Ministry of Culture and Tourism, is also concerned about the financial situation, but their ideas are different. They believe that China should take this opportunity to arrange a certain number of tourists to Turkey every year, so that foreigners come to spend money. It can alleviate the economic crisis from its root causes. But the third group of forces represented by Turkish Aerospace Industries and the Ministry of Industry and Technology have completely different ideas. They believe that the currency situation is completely hopeless and it is not worth wasting precious chips on such things. Moreover, whether they are asking for money directly or tourists, the international outlook is really poor. Therefore, it is better to take this opportunity to cooperate with China to develop some industries, especially projects related to the defense industry. Considering that the latter has also experienced a stage of development from scratch, I think we can learn a lot of useful things from it. By the way, it can also create a lot of jobs, which is not completely unhelpful to the economy. ?At this time in 2000, Ankaras top leaders were completely unable to suppress the different voices below due to a series of abstract operations in the past. So there are many supporters of the three voices. ??More importantly, it all sounds reasonable. ?So, they got into a fight during the closed-door meeting... ?While the other side is fighting, China cannot stand still and has already begun preparations for negotiations. But preparation is preparation, and it is indeed a bit unsettling to be unable to receive the conditions thrown by the opponent. After all, if the tugboat reaches the strait but cannot pass it, it will either pay a high fee to temporarily park at a nearby dock, or it will turn back to the Nikolayev Black Sea Shipyard. No matter which one, the price is not small. Commission of Science, Technology and Industry for National Defense, Office of the Director. Ding Gaohengzheng and Chang Haonan were sitting opposite each other, each holding a cup of tea in their hands. Xiao Chang. The former said while tapping his fingers rhythmically near the mouth of the tea cup: Turkey has officially stated that it will not allow our tug fleet to pass through the Bosporus. Chang Haonan was naturally not surprised at all about this incident. Or rather, he started planning this matter about half a year ago, and now he has a lot of confidence. Even if it is not completely intact, at least it can be settled at a very small cost. Since we delayed expressing our stance until now, Im afraid its not really going to block us. Chang Haonan confidently judged: I guess they have already proposed the so-called reconciliation conditions to us in private, right? After speaking, he took a leisurely sip of tea and waited for Ding Gaoheng''s next words. However, the other party put down the teacup, supported his chin with both hands, and shook his head seriously: Thats the problem. It has been almost 20 hours since the last message we received from Ankara, but they have not made any further offers and have even remained silent and not responded to our unsolicited inquiries. "ah?" ?The confident smile on Chang Haonan''s face froze. (End of this chapter) Chapter 809 There is also a backup plan Chapter 809 There is still a backup plan As soon as Ding Gaoheng finished speaking, countless possibilities flashed through Chang Haonan''s mind. The worst scenario is that because he has significantly changed the direction of the world line, Turkey for some reason decides to go all the way and directly locks the Bosporus Strait like the Suez Canal. It is said that Even the heavens won''t let me pass. If this happens, it will be really difficult. After all, his previous preparations were all based on the premise that "the Turks can negotiate". ?Chang Haonan must admit that he was a little panicked. ??If it is a smaller ship, then there is a theoretical route that enters the White Sea through the Volga-Don Canal, then enters the Baltic Sea through the White Sea-Baltic Sea Canal, and finally enters the Atlantic Ocean. ??However, it is obviously impossible to drag an aircraft carrier through the inland canal. The Bosporus is a hurdle that must be overcome. If you can''t get through, you will be in big trouble. "so" ?Chang Haonan''s hands holding the tea cup trembled slightly because of too much force, and some tea even spilled out. But he did not notice this, but asked: Is it possible that extra pressure from countries outside the region has led the Turks to decide to completely turn against us? The moment these words came out of his mouth, Chang Haonan relaxed a lot. After thinking about it for a while, my mind calmed down The possibility of this happening is actually very low. After all, even during the Cold War, Turkey was properly considered a restless element in NATO. However, because of its important geographical location, it still had a good status among U.S. allies. After the end of the Cold War, with the loss of its status as a bridgehead to contain the Warsaw Pact and its long-term policy of kneeling down to the EU, the relationship between Turkey and the United States became more and more superficial brothers. Many aid projects negotiated in the 1980s have stalled. , Turkey itself also began to pursue a relatively independent development route. In this context, unless Ankara suddenly suffers from some serious illness, it will definitely leave some room for maneuver. Ding Gaohengs next answer also confirms this point: "After Luchuang reported the situation, the superiors did consider this possibility, but there is no sign to prove this, including analysis of public reports from the United States. They seem to be confused about the current situation... " What about other countries? ?Chang Haonan also found it a bit confusing: Isnt there any noteworthy statement? Ding Gaoheng shook his head: After all, it has been less than 24 hours since the incident occurred. For some countries that are not very efficient, it is estimated that there is no time to make any effective response. Thats true ?Chang Haonan was immediately amused. ??He has had more interactions with foreigners in the four years since his rebirth than in the forty years before his rebirth combined, and he has also seen many manifestations of species diversity. Ding Ding Gaoheng''s half-joking words made Chang Haonan think of a possibility. "etc" He quickly regained his composure: Director Ding, do you think Turkey itself is included in the ranks of these less efficient countries? The office fell into silence again. After a long time, Ding Gaoheng took off his glasses and rubbed his eyes that were unable to open due to fatigue: If thats the case, then the other side is just a grassroots team... Chang Haonan just wanted to take over the conversation and make a sharp comment, but at this time Ding Gaoheng continued: Well, considering their performance over the years, I think its not impossible After all, it seems that no normal country can achieve an average inflation rate of more than 80% in a ten-year cycle... After saying this, the two of them did not hold back. They smiled and shook their heads almost at the same time. ??The atmosphere that had been slightly depressing just now finally relaxed. ?After adjusting his emotions a little, Ding Gaoheng changed the topic again: "Forget it, no matter what happens on their side, we have to be fully prepared." "The current attitude of our superiors is that considering that our influence in the Mediterranean coastal areas is relatively limited, if the Turkish side''s request does not If it is too much, we can consider reaching a deal with them directly. The second option is to use the relationship we have established with Europe in recent years to put pressure on Turkey through the EU to force the other party to lower or abandon the asking price. ?Finally getting down to business, Chang Haonans expression became serious again: Director Ding, I dont think it is a good choice to borrow the power of the European Union for this kind of matter. "No matter how much Turkey jumps, it is still just a medium-sized country that relies on its key geographical location to barely be considered a big country, and at least it doesn''t have a direct connection with us right now. Although the Varyag is a big bargaining chip, no matter what Whether its blackmail or trading, its basically a one-shot deal. "But if the EU is considered as a whole, it is already our country''s largest trading partner, and this is just the beginning. If they are also involved and the two-party transaction becomes a three-party negotiation, the situation will be complicated. In the long run, The hidden dangers may be even greater. After hearing his concerns expressed, Ding Gaoheng also nodded in agreement: "For us, time is money... No, time is life. We really need to try to avoid complicating the situation, so this is the secondary option." But then again, we really dont have any bargaining chips in our hands that can be used to directly exchange terms with the Turks. The Varyag must be returned. We cant agree no matter what the other side says, right? His tone was a little helpless. From the previous ring project to the current Varyag being trapped, China has suffered losses in this area twice in a row. The key point is that there are no good countermeasures yet. Actually...if we talk about bargaining chips, we still have them. ?Chang Haonan finally waited until this time and immediately sat up straight. Dante Gaoheng showed no surprise at all. You are talking about the helicopter project we cooperated with AgustaWestland. Turkish Aviation Industry Group has introduced A129 and AC109 as domestic models at the same time, and now even the factory buildings have been built. If we set up obstacles on technology transfer, it will really block them and prevent the project from being pushed forward in a short period of time. Obviously, superiors have already considered such an intuitive method. But since it was not included in the main consideration scope, it is obvious that there are some details that Chang Haonan does not know. Sure enough, after a slight pause, Ding Gaoheng continued: But what we learned after insinuating the Agusta Group was that the core of Turkeys introduction plan is the A129 armed helicopter, which is similar to our Project 11. It will gradually increase the localization rate and eventually eliminate the power system. All other parts are completely made in China, and it has even obtained an export trade license, allowing it to enter the international arms sales market independently of the A129. "As for the A109, the remuneration is much lower. It is only produced under a license, and only the final assembly of large parts is done. In other words, even if we stall this project, the losses to Turkey will be very limited. , On the contrary, Agusta and ourselves will suffer, so it is difficult to use this as a heavyweight bargaining chip, at least it cannot be compared with something as big as the Varyag. Hearing this explanation, Chang Haonan was indeed a little surprised. ?However, at that time, he just asked Song Jingming to check some internal files of Torch Group, and there was really no way to get such detailed information. ?It seems that Ankara dares to stir up trouble at this time. Although it seems a bit crazy, it has at least made some advance preparations. ? Putting aside the good and bad aspects, at least its not stupid. ?Unlike some countries in later generations, which clearly rely on others for more than half of their energy, they dare to directly sanction the other country. But thats where it ends. How smart he is, obviously its hard to say. Because they are not the only ones who have a backup plan. Director Ding. ?Chang Haonan''s expression did not change because of his frustration: In addition to the AC109 project, we actually have a very important card. "oh?" Thats Greece. (End of this chapter) Chapter 810 What does it mean for a lion to open its mouth wide? Chapter 810 What does it mean for a lion to open its mouth wide? It is well known that the relationship between Greece and Turkey is not good. In fact, in the 1990s alone, conflicts broke out between them no less than ten times. There were four direct exchanges of fire. Generally speaking, everyone has their own losses. ??Even if they are not talking about life and death, at least the hatred is as deep as the sea. Ordinarily, if this is the case, the normal direction of development should be for both sides to find someone to hug each other, and then launch an arms race, ready to defeat the other side at any time. ?Even if you can''t defeat him, you still have to find a way to keep making the opponent sick. However, the situation of these two companies is quite special Because they are both NATO countries, at least in the past few decades, the two sides have mainly been interested in the United States... No matter who suffers a loss, the first reaction is to go to Washington to complain, and then either asks for more military assistance or buys better weapons and equipment, in order to get the situation back. Therefore, although it cannot be said that no one has thought about the strategy of using Greece to control the territory, it has not entered the formal discussion stage. The operability is too low. ?However, for Ding Gaoheng, since it was Chang Haonan''s idea, no matter what, it is necessary to at least listen to it. Tell me about your plan? He adjusted his sitting position and assumed a listening posture. Although we really have no way to influence Greece, negotiations are mainly about bluffing..." It was not until a few hours later, that is, the next morning local time, that Ankara, which had held a closed-door meeting for a whole day, announced that the Bosporus Authority had received the situation document from Luchuang Group. , both parties will resolve the issue through dialogue on an equal and open basis - ??Although everyone can see that this matter has risen to the official level of both sides, you still have to be more cautious in the words you use when making announcements. As soon as these words came out, everyone breathed a sigh of relief. Things are finally back on what everyone considers to be "on track." ?Of course, the so-called equality and openness definitely does not exist. Just listen to it on the contrary... As for the meeting place Given the special nature of this incident, the final method of the talks was also very complicated. First of all, neither side is willing to go to the other sides territory to talk. This is nothing unusual. So as usual, the location for the face-to-face confrontation was chosen in a hotel in Budapest. But the person sitting in front of the negotiating table is not the plenipotentiary usually seen in such situations. Rather, it is just a mouthpiece, responsible for conveying the decisions made domestically. There is quite a sense of dj vu that you can obviously make a phone call directly, but you have to write a letter and let someone else make the call on your behalf. This method of negotiation was relatively common in the era of secret diplomacy in the 19th century or even earlier. But no one has used it for almost a century ?Of course, it is not entirely without benefits. ?For example, the core negotiation team does not need to face outsiders directly, nor does it need to go abroad. Hence, there is less need to consider size and membership limitations. ?Chang Haonan naturally entered the list along with Ding Gaoheng. Director Ding, why would you use such a method..." Sitting in the large conference room specially prepared for the negotiation team, Chang Haonan looked at the negotiation outline in front of him and asked Ding Gaoheng next to him in confusion. ? He ??originally wanted to use such an abstract method, but after thinking about it, he felt that it was a formal occasion, and there were comrades from other units around, so it was difficult to express it too directly. But for a while, I really couldnt find any other adjective. ?However, Shen Shengguang, the head of negotiations at the Ministry of Foreign Trade and Economic Cooperation, who was one seat away, had a very good ear. Hearing Chang Haonan''s question, he immediately answered: We are also very surprised about this, as Ankara insists on it. But we dont have much leverage to begin with. If we struggle with the other party for too long on such minutiae as negotiation methods, it will be even more disadvantageous. ?Chang Haonan showed an expression that he couldnt bear to look at: But as a result, the efficiency of negotiations will definitely be reduced. Im afraid it will take days to calculate, as for the tug fleet..." ?At this time, a man wearing a navy uniform also joined the conversation: "The Varyag cannot anchor, and it is difficult to stop the ship. They are temporarily allowed to slow down and circle on the high seas. If there is really no way to reach a conclusion in a short time, then they can only find a port to dock, or return to the Black Sea first. The shipyard...I suspect that this method was chosen because the other party saw our difficulties and wanted to deliberately delay time..." Then I dont think so. Shen Shengguang slowly shook his head: If this is the case, they can choose a less efficient method, such as hiring a special envoy to go on a trip, returning halfway through the conversation, and then inviting us to send a special envoy there... This is what we did in the past when we wanted to delay time..." Halfway through speaking, he noticed several strange looks from around him: "Why are you looking at me like that... This is all strategy! Can strategy be called dirty..." The words that follow are difficult to understand, such as "A war is never tired of deceit" and so on. Fortunately, the occasion was quite serious and it was impossible for everyone to burst into laughter. So Shen Shengguang quickly returned to the topic: In short, since they still chose to send a delegation for face-to-face talks, they also want to reach a result quickly, but they really cant understand why they dont give the negotiators sufficient authority..." "After all, in recent months, their domestic economic situation has been unstable. There have been rumors in the financial market that foreign investors are going to withdraw their capital in a concentrated manner. If they can''t quickly inject confidence, then I guess they will collapse at the slightest sign of trouble... " So Lao Shen. Ding Gaoheng, who had not had a chance to speak just now, finally spoke: You mean that the other partys conditions will be focused on economic and trade aspects? Then you still need to ask? ? Shen Shengguang, as the leader in charge of foreign economic and trade, immediately straightened his back and patted his chest: Otherwise, why do you think the superiors sent me here? I dont think so Soon someone expressed different opinions, triggering a small-scale discussion. Several leaders, is there such a possibility... Chang Haonan, who acted as the trigger, wiped the sweat from his forehead and quickly interrupted the competition among the big guys: The reason why the Turks did not send a special and plenipotentiary representative is because the forces of all parties are so complicated and their interests are so different that it is impossible to select a negotiator who can represent the interests of everyone? ?Everyone looked at each other and suddenly felt that something made sense. After all, they can argue because of a little bit of competitiveness, and the situation on the other side will only be more serious... ?However, just when someone wanted to say something, the first news from Budapest finally came back. Dear leaders, excluding technical issues related to navigation methods, there are a total of four conditions proposed by Turkey. A staff member walked up to the small podium where the microphone was placed. This Turk really dares to raise...the first thing he asks is four demands... Shen Shengguang shook his head and whispered: Those who dont know think they are Americans At this time, the staff on the stage had also opened the folder in their hands: The first is to require an advance payment of US$2 billion in navigation deposits as compulsory insurance to offset the risks of large unpowered ships passing through the straits. This insurance is irrevocable within five years and must be guaranteed by Turkeys domestic banks. ??If everyone was just complaining on a small scale just now, after reading the first article, the scene immediately exploded. "How many?" $2 billion in premiums? How much are they prepared to insure? No, look carefully. This thing is said to be insurance, but it is actually asking our country for an interest-free loan of 2 billion! And it is an interest-free loan without any conditions attached. How can such a good thing be possible? Generally speaking, for things like international loans, there is a high probability that even the principal is unlikely to be recovered, at least not in full. The reason why many countries are still willing to lend even though they know this is because it is usually part of a package. ?For example, country A lends a sum of money to country B, but requires that the money can only purchase products or services from country A. It is equivalent to the money not leaving the country at all. Lets use some natural resources or legal rights as guarantee. ?There was no expectation of getting the money back, all I had to do was get the collateral. But this wave of Turks is equivalent to actually asking for help. These 2 billion U.S. dollars will not stay in China, but will be actually handed over to the other side. Lets not say whether they will pay back the money in five years. Even if you can, such a large amount of money will be loaned out for 5 years without interest... ?The last time this happened was probably before the socialist family was disbanded... Hence, it is normal for the scene to be full of excitement. Well, whats the point of making noise? In the end, it was the leader of the negotiating delegation who spoke out and silenced everyone: Let the little comrade finish explaining the situation first! With the support of the big boss, the staff on the stage breathed a sigh of relief and continued speaking quickly: The second is to require our country to include Turkey in the list of destination countries for citizens to travel abroad, and not to set additional restrictions on Chinese citizens traveling abroad with Turkey as their destination. Third, our country is required to invest no less than US$500 million in Turkey within two years, of which the amount of industrial-related investment is no less than US$300 million. The fourth requirement is to allow my country Aerospace Power Group to cooperate with Tusas Engine Industry Company to jointly develop the TF10000 engine project. After finishing speaking, he took out a piece of official paper from the folder, placed it on the stage of the projector, then gave a slight greeting to everyone in the venue, and quickly turned around and slipped out. (End of this chapter) Chapter 811 If China can do it, can I do it too? Chapter 811 If I can go to China, can I do it too...? After all these four items were finished, the scene became quiet. For a long time, no one spoke. Because compared to the first piece of unparalleled heavy content, the last three pieces are like... How to describe it? ??If negotiation is compared to boxing, and making conditions is like punching, ?The first one just now is basically equivalent to Tysons full blow. The last three are ordinary high school girls punching you in the chest. Its not just a matter of intensity. The more important problem is... Its very confusing. I dont understand tourism, but...has our country issued a ban prohibiting traveling to them? A few seconds later, someone finally asked the first question. ?Everyone looked around and found no relevant comrades at the scene ?This is also very reasonable. After all, no normal person would think of inviting people from the tourism authorities during the negotiation process on this topic. "Do they... still think that our citizens have quotas for going abroad? Just like what some... media have promoted?" Although it was a negotiation venue, everyone almost laughed after hearing this speculation. No way Since 1994, we have essentially lifted the restrictions on passport applications. As long as you are not restricted from leaving the country by the public security organs, you can apply for it Turkey is a serious country. If you still dont know about this after seven years, you are just a fool. ?But at this time, Shen Shengguang, who was in charge of foreign trade, answered everyones doubts: "As far as I know, in the past, Chinese citizens could only apply for passports through travel agencies if they were not required for work. Our country has indeed released a list of destination countries before. I think this may be what they are talking about. thing." But the passport is not a one-time use. As long as the application is completed and the Turkish government is willing to grant a visa, we will not stop it..." "I guess... it''s because most people in our country travel abroad. The farthest places are the United Kingdom and the United States, and the closest ones are Japan, South Korea, and Southeast Asia. Probably... not many people have thought about it, or... maybe... not many people have known about Turkey at all. ? At this point, the situation has become a bit out of control. Obviously, Turks have some unrealistic estimates of their international popularity. Forget it, lets go through this first Even the leader of the delegation was obviously holding back a smile: Anyway, our country is about to sign a formal agreement to join the WTO. One of the items allows citizens to apply for passports on demand. As for the list of destinations, all countries that have established diplomatic relations will also be added..." It is a pity that Chang Haonan did not see this hilarious process. Because, after reading those four items, the first question that came to his mind was different from others. Rather What exactly is the TF10000 engine? ?Chang Haonans main purpose of coming here this time was actually just to eat the melon, but he never expected that the melon would end up on his head. ?Of course he had heard of such a model, but that was about 20 years later when the Turkish aviation industry prepared the power for its own heavy-duty drone and the so-called "fifth-generation fighter" TF-X "Khan". Although I cant remember exactly when the project was established, at least when he was reborn, not to mention the TF10000 itself, even its prototype, the TF6000 without afterburner, was only a very rough prototype. ? Calculated, the project establishment date will never be earlier than 2015. ? No matter how crazy Tusas Engine Industries (TEI) is, it is impossible to think that it can tinker with a fourth-generation aviation engine in 2000, when the F119PW100 has not even been fully finalized. So, the current TF10000 is most likely another thing, but it just happens to use the same name. ?So just now, after asking for instructions, he called Zhang Liangping to let the latter understand the situation. Here at the venue. Compared to the second article, which is completely fun, although the content of the third article is not very strong, it is at least serious. ?However, it did not arouse much discussion. In 2000, although China had not yet become a net exporter of capital, the amount of overseas investment had gradually increased. Although the main investment directions are still some traditional trading partner countries, at least no one will object to this matter. ?In particular, the other party also requires that at least 60% of the investment be injected into industrial enterprises. ?There is not even much concern about the investment being wasted. Chang Haonan, who had just returned to his seat, had no objections. ? Or rather, he couldnt imagine how someone could actively invite others to buy at the bottom of his stock Turkeys economy is in a mess right now, and it will be in a mess before it is reborn. But there was a period of serious growth in the past twenty years or so. Especially in two years, some tough guy who thinks "a fairer world is possible" will come to power. ?About 10 years after that, Trkiyes economic growth rate almost rivaled that of China. ??Furthermore, I havent heard that like a large country in South Asia, there is a situation where foreign investment cannot leave after it comes. In short, it will definitely not be a loss... Then, this item can also be used as an alternative to consent... The leader of the delegation jotted a few words in his notebook, then raised his head again: The last item comes next. He then turned his attention to Chang Haonan. Comrade Haonan, you should be the person who knows the most about aero engines in our country. Can you tell us about the TF10000 engine? The rest of the people also looked this way. The main look in his eyes is curiosity. ?Although no one knows much about aviation development, it has only been a few months since the large-scale discussion triggered by the military parade, so everyone has heard about it. ?It seems that except for the United States, Russia, Britain and France, as well as China itself, which has only made some progress recently, no country seems to have produced any well-known models. One thing is only in the hands of the five great virtuous people, which can explain some problems. Now that Trkiye has suddenly jumped out and claimed that it wants to join this ranks, it seems a bit strange. "Can." Chang Haonan also nodded helplessly: During the Cold War, the United States authorized Turkey to produce a batch of F110GE100s in the form of license production, which were used on F16 fighter jets also authorized by Turkey. However, after the end of the Cold War, as the relationship between Turkey and the United States turned cold, the United States Requests to renew this license have been denied in previous years. "However, the Turkish Aviation Industry (TAI) has gradually gained the ability to overhaul and upgrade early F16s during the authorized production process, and can carry out limited updates to the domestically equipped F16 fleet, but TEI has not been able to fully understand the supporting facilities. The F110 engine, resulting in aircraft power updates and upgrades, is still subject to General Electric. Hearing this, Ding Gaoheng next to him rubbed his forehead. This plot is very familiar to him. Chang Haonan continued: "This TF10000 means ''Turkey''s self-developed 10,000kg thrust level aero engine''. It is actually the F110GE100 produced by TEI in the hope of getting rid of the restrictions of the United States. The parameter calibration is basically equivalent to about 90% of the latter, but...it is not yet available Just a plan." As for why they came to us...its a long story. Chang Haonan paused for a moment and took a deep breath helplessly: After last years 50th anniversary military parade, there were many international speculations about the new engines that appeared in the air formation. One of them is that we have thoroughly understood the technology of the CFM56 core machine and developed it ourselves on that basis. This CFM56 also has close technical ties with the core engines of the F110 and F404 engines. So later, the French Snecma Group came to us, hoping to assist them in improving the M88 engine that borrowed a lot from the designs of the F110 and F404 models. This matter was almost completely public, so it had a great impact. My personal guess is that after seeing this situation, the Turks had similar thoughts to the French Not everyone in this negotiating delegation knows the specific situation of turbofan 10. ? So Chang Haonan skipped this part, neither confirming nor denying the statement that "Whipfan 10 is related to CFM56", nor making a clear statement on "whether China has the ability to assist TEI in replicating an F110". The specific situation may need to be reported separately to the superior leaders later. ?However, most people at the scene still felt it was very outrageous. Especially after the discussion in the second item just now ? France is at least a powerful country in the aviation industry, and together with China, it sounds feasible to jointly develop an advanced engine. But Trkiye, why? cooperate? ?Its pretty much free prostitution, right? Furthermore, even if its free prostitution, you still need to have some basic knowledge. ??If aviation development was really that easy to do, and the Soviets taught us almost step by step for more than ten years, shouldn''t our China''s aviation development technology be close to that of the United States and the Soviet Union in the 1960s? What''s going on? Facing such a question, Chang Haonan was silent for a long time. Longer than any time before. As everyone said. ? He ??is confident to help Snecma develop the M88 because the Frenchman is like an ordinary academic master. Although there are questions that he does not know, he can understand them with a little help. But Turkey, even if he is not a bad student, is at most one of the poorest students. ?At the beginning, you have to do Olympiad-level topics, and you also need to have a church. ?It really cant be done In the end, he had no choice but to sigh and replied: "Maybe I have a disease called ''I can do it if I can do it in China''..." (End of this chapter) Chapter 812 Shooting yourself in the foot Chapter 812 Shooting yourself in the foot One of the advantages of this negotiation method proposed by the Turks is that it has very low timeliness requirements. Especially on some more tangled issues, you can discuss them slowly. Presumably this is the reason why they made this decision. Therefore, while everyone was lamenting and discussing, the leader of the negotiating team announced an adjournment of the meeting, and then called Chang Haonan out alone. The two of them quickly came to another smaller room next to them. Xiao Chang, I dont know much about aircraft engines, so I need to check with you before making a decision. ?The other party asked straight to the point: Technically speaking, do we have the ability to assist them in completing the TF10000 engine proposed by Hijikata? Chang Haonan answered decisively without much thought: Reporting to the chief, aviation development is a complex system engineering. We have many unique technologies that Americans do not have, but the reverse is also true. In other words, developing a turbofan 10 with similar overall performance to the F110GE132 is two different things from replicating the F110GE100, at least in a short period of time. ?Although it is not directly denied, the meaning is obviously... no. So there are rumors about Turbofan 10 using CFM56 as the core machine Of course its false. Chang Haonan smiled and shook his head: From the overall design to the production and manufacturing of the Turbofan 10, we have completed it all ourselves, and it has nothing to do with the F110 or the AL31F. ?The other party took a long breath of relief, then turned slightly and looked out the window: It is impossible for us to agree to their first request under any circumstances. This not only involves a US$2 billion issue, but also involves the national image. But if you only agree with the second and third items, Im afraid it wont be so easy to talk to the other party..." At this point, he lowered his head and gently rubbed his eyebrows: How could such four illogical conditions be put forward... In fact, according to Chang Haonan''s guess, these four conditions should be proposed by several different interest groups in the other country. Ankara''s top leaders were unable to coordinate the relationships and demands among them, so in the end they had to throw it all away. It stands to reason that we should be better able to deal with this situation. After careful consideration, Chang Haonan took half a step forward: Chief, Director Ding and I have thought of a way to make Ankara reconsider their conditions. Originally, according to his idea, this matter should be raised by Ding Gaoheng at the meeting. But the current situation seems more appropriate. Sure enough, after hearing what he had in mind, the chief turned around abruptly: "Tell me." "We can hint to the other party that if they refuse to allow the Varyag tug fleet to pass through the strait, we will consider Greece''s request to join the new fighter development program. By then, the Greek Air Force will obtain a fighter jet at a price close to cost. A more advanced fighter than the F16C/D. Thats right The chief was about to nod when he suddenly realized something: Wait a minute...did the Greeks make such a request to us? ?For the new fighter jet mentioned by Chang Haonan, his first reaction was almost naturally the J-10. So ?It is outrageous to be able to jointly develop helicopters and fighter jets with NATO countries. If main combat equipment can be sold directly to NATO... Laughing to death, what does it mean to rebel against Tiangang? "of course not." ?Chang Haonan spread his hands slightly: "But the Greek Air Force has always been a loyal user of French-made fighter jets. From the Mirage F1 to the Mirage 2000, it is normal to continue to purchase new models. And in the mid-1980s, when the French just withdrew from the EFA project, the Greeks did Considered joining. ?At this time, the chief finally reacted: Ohyoure talking about Gust ?Then he put his hands away and walked back and forth in the room a few times. Bluffing. Risks and returns coexist. If the other party believes it, then everyone will be happy. But if it is seen through, it will become even more disadvantageous. This strategy actually involves betting on a hand that the other party does not dare to bet on. ???The conflict between Greece and Turkey is not a small fight like between Britain and Iceland or Britain and Spain, but a solid one that bleeds to death and throws people off planes. The outcome of each conflict will even directly affect the domestic situation of both parties. ?At present, the air forces of Greece and Turkey are basically in balance. However, due to the cooling of relations with the United States, the latter''s equipment update has not been smooth. On the contrary, the Greek Air Force is actively seeking new equipment and has even begun to contact the United States about the introduction of the latest model F16C/Dblock52. ?So according to its usual principle of "holding the thighs of the United States and France at the same time", it seems reasonable to consider Rafale by the way. Not to mention that you can get ultra-low prices, so there is no reason not to buy it. ??And once Greece suddenly has dozens of third-and-a-half-generation fighter jets... the Turkish Air Force will almost certainly suffer a big loss. ??If left to the past, perhaps they would have pinned their hopes on Washington''s attitude, believing that the latter would not allow the balance of power over the Aegean Sea to be broken. But last years erroneous show of force has proved that the Americans methods dont seem to be that reliable ?In this case, even if there is no evidence, the other party does not dare not believe it and has to believe it. After analyzing this point, the final conclusion is self-evident... ?Meanwhile, Ankara. In a conference room with a layout similar to that in the capital, the Turkish negotiating delegation is waiting for a response from China. Although the various factions within it have never been able to reach a consensus, at least for the moment, the atmosphere in the room is relatively relaxed. ?Finance authorities and the central bank are expected to receive a large amount of interest-free borrowing, at least until the next election. The cultural sector will receive a large number of tourists. Even if individual spending power may be lower than in Europe and the United States, it can still bring in an income of hundreds of millions of dollars per year. The industrial sector is expected to receive a large infusion of investment, reviving market confidence that has been shattered by rumors of foreign capital flight. The military, which has the most weight to speak, sees hope in upgrading the main equipment of the air force. Everything is so perfect ?According to their estimation, Varyag is an asset that China can never give up, so even if the conditions are harsher, the other side has no bargaining chips. Im afraid that the most I can do is to adjust the premium amount in Article 1. Your Excellency Unakitan, if you can receive the deposit, I hope that at least one-third of it can be used to supplement the shortfall in personnel expenses in this years military budget. ?Deputy Chief of General Staff Hilimi Ozkirk told the head of the Ministry of Finance Kamal Unakitan. Although he said "hope", there was obviously no discussion in his tone. In most countries, it is absolutely impossible for a general to talk to a civilian official like this. ?This is naked political interference. But in Turkey, since the military has the responsibility of supervising the country, the rights of military bosses are almost unlimited. Dont talk about a minister, even the Prime Minister will change him whenever he wants. ?Hence, although Unakitan looked unwilling, he could only nod in agreement. Suleiman Demirel, who was next to him, wanted to open his mouth to smooth things over, but after being glanced at by Ozkirk, he immediately retracted. ?Twenty years ago, he was overthrown by the army overnight. ??Although he has now made a comeback with his qualifications and has taken a prestigious position with little real power, his past experience has determined that he has no courage to stand out in front of the military. ?Just when Ozkirk wanted to say something again, a staff member suddenly walked in hurriedly from outside. Even bumped into the back of a chair on the way. Just as Demirel was about to reprimand him, he saw the other party walking straight to the front of the conference room. "Is there good news to be announced?" He swallowed back the words that had reached his lips. ??If the Chinese people have agreed to their request, it is understandable to be a little excited... ?Thinking of this, Demirel adjusted his sitting posture and looked forward with a smile. At this time, the staff member had also opened the file in his hand: The Chinese side stated that it cannot accept the conditions proposed by us. ?) Dont accept? "How is that possible? Aren''t they planning to tow that ship back?" ?There was a commotion at the scene In fact, Ankara had received a request from the United States more than half a year ago to block the Varyag in the Black Sea. ?However, the reason why they finally decided to stop the Varyag actually had little to do with this incident. Just want to blackmail someone. After all, after the end of the Cold War, the Turks have already experienced the feeling of being abandoned from the beginning to the end, and it is impossible to tie themselves to the American tank so easily again. ?In their judgment, any benefits are trivial. As long as they don''t really hold down the aircraft carrier, they won''t completely offend the Chinese people. There is always room for maneuver. It should be said that this judgment is actually correct. ?But what I never expected was that the Chinese people seemed to have no intention of bargaining with them, but simply gave up... If this is the case, the trouble will be big. ?In the long run, even if you offend a big country that is on the rise, it will not gain any immediate benefits. Faced with this situation, some people were soon ready to kneel down: How about... we lower our demands and negotiate with China again? Turkish people always like to compromise...open a window...tear down the roof.txt In short, for a country like this, if you really sit down and have a good talk with it, it will kick your nose in the face. But if you directly prepare to overturn the table, then he will come over to mediate the situation, quickly pull you back, and be willing to have a good talk. ?However, this is not over yet. After the scene became a little quieter, the staff continued to add the second half of the sentence: "China also stated that if we refuse to implement the provisions of the Montreux Convention and allow the Varyag tug fleet to pass through the strait, then they will consider allowing Greece to inject capital into a new fighter jet that is currently in the development process. Become an initial investor. This means that the Hellenic Air Force can get an extremely low price and priority in obtaining the supply of this model. ??There were some noisy arguments at first, but they stopped instantly. ??If the first half of the content is just a stone thrown into calm water. ?The second half is when a nuclear bomb was detonated in the sea. There was silence between the exploding sky and the earth. "Wait a moment" ??The first person to lose control was Ozkirk, who was still arrogant just now: Did they mention more specific details, such as model number or delivery time? The special status of the Turkish army comes from the people''s strong defense of the military''s decisions. ?This kind of even somewhat unreasonable maintenance came from the fact that in the Battle of the Dardanelles, the army vigorously defended the country in the face of an overwhelmingly superior enemy. ?But on the other hand, if the Turkish army cannot continue to prove itself, the collapse of trust will also happen in an instant. Obviously, the situation is currently developing out of control. Unfortunately, the staff on the stage shook their heads, indicating that it was not the case. The person in charge of foreign affairs next to him, Ismail Jem, was obviously much calmer: I guess it should be the Rafale fighter jet being developed by Dassault. All exports of Rafale fighter jets require simultaneous approval from China and France, let alone the addition of an original investor. Ozkirk''s mind was a little confused. He just opened his mouth but did not say anything. Do the Greeks really want to cooperate with the French? Demirel also asked with concern. ??If the Turkish army is really overwhelmed in the battle for the Aegean Sea, then the military will naturally bear the brunt, but they will not end well. There wasnt much emotion in Jems voice: In any case, their contact with the French must have been carried out secretly, and it was impossible to inform us. "What is certain is that in the early years of the development of the Rafale fighter jet, the Greeks did show a strong interest. According to some decrypted information, they even sent technical personnel to inspect the design plan. However, the French had just left the EFA project at that time and did not We are motivated to engage in joint research and development again. But now, considering that it will cost them a lot of money to ask the Chinese to help solve the power problem, since they have already introduced an additional partner, it seems easy to accept the introduction of a second one..." And one thing that needs to be noted is that although the main tugboat hired by China is from the Russian Navy, there is also a brake tugboat from a Greek company, and there are many Greek crew members on both ships. As a veteran, Jem will not give his own judgment directly. But every time he said a word, the faces of other people present would become a little gloomier ?Before making the final decision to intercept the Varyag, an important reference they chose was the operation of the Ring Project by the Kingdom of David. At that time, China did not show any effective countermeasures. This is also the main reason why they have always believed that the Chinese people would give in easily in the past few days. ?However, everyone has forgotten. Although it has only been more than a month since the ring project was completed. But the Chinese have a brand new bargaining chip in their hands. Furthermore, it is specifically targeted at Trkiye. The relaxed and freehand experience a few minutes ago seemed as if it had never happened. Everyone''s face tightened. After a long time, someone finally spoke: "We rejected the Varyag''s navigation. This is known to the whole world. If we fail to reach any agreement with China and just let the ship pass, it will be very detrimental to our future management of the strait... " The reason is the same as Chinas inability to accept the 2 billion guarantee deposit. Matter of principle. ?Once you give in this time, others will follow suit, and there will be no peace. Ozkirk frowned, unable to make a decision for a while. He regrets it very much now. ?Had I known this, I might as well have been a favor from the beginning and let the ship go... ?The current operation is as fierce as a tiger, and the result is neither letting it go nor not letting it go. He shot himself in the foot. "Gentlemen." ?He took a deep breath, raised his head and looked at the other people around him: I propose to have a face-to-face conversation with China to resolve this matter as soon as possible, especially to rule out the possibility of Greece acquiring a large number of advanced fighter jets, at least not in the next few years. Who is for it and who is against it? (End of this chapter) Chapter 813 Through the Channel! Chapter 813 Passing through the strait! ??When the news of Ankara''s request for a direct meeting reached the capital, most people did not even react immediately. Including Chang Haonan. Although it was his idea to use the name of Greece to create cards in the void, when making plans, he could only use it as one of the bargaining chips in negotiations. ?Whoever dares to do so will be immediately killed. About half a minute after the staff introduced the situation, someone in the originally tense venue finally couldn''t hold it back and let out a burst of mocking, helpless laughter. Immediately afterwards, the others were also inspired, and they all lowered their heads and covered their mouths to snicker. The entire conference room was finally filled with a happy atmosphere. "well" The leader of the delegation sighed, then leaned his upper body on the back of the chair and shook his head. ?Although he didnt laugh out loud like the others, the corners of his mouth that couldnt be suppressed clearly showed that he was in a very good mood: Originally we thought we were going to gnaw on a hard bone, but...as soon as we moved our mouths, we found that it was a brittle bone... With this slightly joking remark setting the tone, other people''s speeches naturally became less restrained. Yeah, not to mention the past two days, even the past two hours, when I first heard the four requests from the other party, I felt that they were coming very menacingly and were quite difficult to deal with. Shen Shengguang, who thought he was going to play the leading role, but found out that he was just playing the leading role, swept away his depressed mood at this time, raised the notebook in front of him with a smile and said: Look, Im still analyzing it seriously. One sentence attracted everyone''s attention, and they found that the two pages of the book were covered with dense writing. "I just thought that these four items of the Turks looked chaotic, but in fact they are intertwined with each other. The first one requires us to have a large deposit. In addition to being an interest-free loan, it can also give the fourth The article requires us to participate in joint research and development as a guarantee. If we find that there is no progress in the project after five years, we can continue to struggle with the refund issue..." It should be said that Shen Shengguangs explanation does make sense. ??If this agreement is really signed according to the conditions proposed by the Turks, then even for the sake of the 2 billion, the Aerodynamics Group will not be able to overdo it and come up with something real. Its just that my opponent probably didnt think about it at all and just performed a wave of sit-ups ?At first I felt that I was good at it, and after a while, I realized that I didnt seem to be very good at it. In the end, I didnt even struggle and just lay back down. It would be better not to have any support in the first place. ?This kind of sliding and kneeling speed makes the performance even more clownish. Chang Haonan couldn''t help but think of a famous quote from a classic TV series he had watched in his previous life, so he spoke almost subconsciously: Being arrogant at the front and respectful at the back makes you laugh when you think about it ?This original soliloquy was heard by Ding Gaoheng next to him. Heh, this term is very suitable to describe the opponents performance... The latter commented immediately. ?Although arrogant and respectful are also used to describe people, in the current environment, it is simply perfect. Besides, I didnt realize it before, Xiao Chang, do you know something about literature? Chang Haonan could not explain that this line came from a TV series released a few years later, so he had to wave his hand: The words are just on the tip of my tongue, I think they are spoken from my thoughts ?However, the joyful atmosphere did not last long. After all, although the Turks have shown their intention to kneel down, the Varyag has not actually passed through the Bosporus, so it cannot open the champagne in advance. ?According to the delegation leaders intention, since the interview is being prepared, the next step is to determine the meeting place and negotiators. But at this time, some people put forward different opinions. I think there is no need to agree to the Turks request right away. As the leader responsible for foreign economic and trade cooperation, Shen Shengguang is relatively professional in negotiating and understanding the psychology of foreigners. In his opinion, since it has been discovered that the opponent''s pressure resistance level is far less than expected, then the opponent should not be given breathing room Oh, you said before that you didnt want to meet in person to talk, and we agreed. ?Now you find that the situation is not right and want to suddenly change your mind? How can there be such a good thing? Changing the negotiation method itself is also a matter that can be traded. If you want to have a face-to-face meeting, then offer conditions in exchange. Shen Shengguang cleared his throat and expressed his thoughts. But Comrade Sheng Guang. Some people soon expressed concerns: After all, we came up with the Greece card as a bluff. If we really delay it for too long, what if the other party discovers the problem..." Before he could finish speaking, Shen Shengguang waved his hand: Im just saying that I cant agree to the interview immediately, but Im not saying that I wont talk. "Budapest doesn''t need to drag it out any longer. It adjourns the meeting directly and asks Comrade Yi Kuangyao stationed in Ankara to convey our conditions directly to them and tell them that is our bottom line for negotiations. If they don''t agree, then we can''t guarantee the Aegean Sea. Arms balance in the region! As for the Varyag, the worst case scenario is that it will go back to the Black Sea Shipyard first. It wont be too late for us to talk about it after they replace the next leader in two years! ?Shen Shengguang said and knocked on the table in front of him. Negotiation is essentially similar to playing cards. The comparison is not just about the size of the cards. Unless your starting hand is an invincible card like a Royal Flush, you can naturally defeat ten with one effort. But in most cases, you still have to play psychology. Just like now. ??The Chinese side is indeed just bluffing. However, the other party exposed its internal instability and its weakness of being unable to withstand any turmoil of public opinion. It is equivalent to showing one''s trump card. It means that the Greeks cannot afford to obtain advanced equipment that can reverse the situation. ?Of course, the situation in China is actually similar. Varyag must be allowed to return home smoothly no matter what. But the Turks didnt know about this latter matter. In this case where individual information is transparent, negotiation is basically a unilateral devastation. So, there is no need to be too timid. The leader of the delegation thought for a while, then raised his head again: "Then, let''s follow Comrade Shen Shengguang''s opinion and first determine the content of this ''ultimatum''!" One day later. Zhu Yuzhou, who had been circling the high seas outside the entrance to the Bosporus for more than ten hours, looked worriedly at the Chamilika Mountains that were vaguely visible in the distance. He had barely slept since he received the call asking him to slow down as much as possible. The big ship behind him is of great significance to him, Luchuang Group, and even China as a whole. Every day he is delayed on the road, the risk of long nights and dreams increases. ? It has been less than a week since the ship set sail, and the number of sightings of small boats and helicopters within visual distance of the fleet has already exceeded double digits. ???In one of the most dangerous times, a helicopter even tried to forcefully land on the deck of the Varyag. Fortunately, he saw the opponent''s intention in advance and ordered the steering evasion in time, so that he could not succeed. But only a thousand days to commit a thief, not a thousand days to guard against a thief. If we continue to go around in circles like this, it will be a matter of time before someone finds a loophole and boards the ship, or even destroys the traction rope. Of course Zhu Yuzhou also knows that at this moment, the country is expected to be engaged in fierce negotiations with Turkey. But at least in his view, the results are hardly optimistic. ?The Mediterranean is still too far after all. Mr. Captain. Zhu Yuzhou, who was really unable to bear it, turned around and said to the big-haired captain who was only wearing a vest: Im going to take a rest. If you notice anything unusual nearby, be sure to wake me up. Okay, Zhu, go ahead and leave this to me. ??The latters mentality is quite good. After all, the overseas subsidy is calculated on a daily basis. Even if he keeps wandering around the Black Sea, it will not affect his income. ??Zhu Yuzhou nodded, and just as he was about to turn around and walk down the deck ladder, he heard the maritime satellite phone next to him suddenly ringing. ?His whole body was shaken, his sleepiness disappeared almost instantly, and he rushed over at a speed that the captain next to him could barely see his figure. This is Nikolai Chikel, please speak. There was heavy breathing on the other side of the receiver. After a few seconds, the voice of old friend Ye Junqi came out. The strait management agency has withdrawn the order prohibiting passage. A brief sentence made Zhu Yuzhou''s tense nerves suddenly relax. He suddenly felt a little dizzy. Fortunately, I grabbed the handle next to me in time: Thenthat means we can get through? Yes, but there are still some technical requirements. A traffic boat will board the ship in a while and explain the situation to you in detail In order to prevent his sit-ups from becoming a clown act, Hijikata put forward many technical details. For example, the braking tug is required to have a horsepower of not less than 16,000 horsepower. It also requires two additional auxiliary tugs at the bow, amidships, and stern, as well as three additional pushers to prevent collisions with cross-sea bridges or coastal buildings. ships, bringing the size of the entire fleet to 12 ships. ?In addition, during navigation, visibility is required to be no less than 5 kilometers, water flow no more than three knots, and wind strength no more than level five. In fact, from the perspective of navigation safety, this is quite an overkill. ?The Bosphorus is 708 meters at its narrowest point and 27.5 meters at its shallowest point, which is more than enough for the Varyag, which has not yet been outfitted. ?Furthermore, the tugboat fleet hired by China is composed of veteran crew members who have been working near the strait all year round. In fact, there is no need for such an exaggerated momentum. ?However, China can also understand Ankaras thinking - Having stopped the Varyag is already an open matter to the whole world. ?Now the purpose of extorting a sum of money has not been achieved. ?Then you have to give an explanation to the outside world and explain why you have been jumping up and down for so many days. I cant admit that I wanted to make a fortune, but was killed. ?Thats too embarrassing. So I can only focus on technical details, showing a posture of "I am so rigorous because of the safety of international waterways." So, for these purely technical requirements, Huaxia directly accepted them all. It wont cost much anyway. But the parts other than technology are completely different. The first one, that must be completely abandoned without a doubt. ?Of course, as the five great virtuous people, it does not mean that we are completely unreasonable. Huaxia promised that if any damage is caused to the strait and shore facilities during navigation, it will pay corresponding compensation from a huge special insurance. However, the guarantor was changed from a Turkish bank to a domestic insurance company in China. By the way, it will become the single largest business of China Insurance Industry in the next many years. The second and third articles have a different expression. That is to say, based on the previous agreement reached with the EU, the two sides will open markets and investments to each other based on the treatment of WTO member countries. As for the tourism industry, Comrade Yi Kuangyao spent a lot of words to get Ankara to accept the reality that Turkey actually has little reputation in China. In order to improve this situation, he suggested in good faith that we could consider opening up the visa-free or visa-on-arrival policy between the two countries... As for Article 4, because it involves the defense issues of a NATO country, it is indeed somewhat sensitive, so it was eventually replaced with a completely pragmatic statement. Both sides will be committed to enhancing strategic mutual trust between the two militaries, improving their ability to respond to non-traditional security threats, and gradually deepening military exchanges under the guidance of the principles of mutual respect, fairness, justice, and win-win cooperation In short, this "Black Sea-Mediterranean Crisis" ended quickly, leaving many countries dumbfounded. ?Although some major powers outside the region have once again emphasized the "risks" and "threats" that an unpowered ship may pose through the strait, it is clear that nothing can be done without advance preparation. Three days later, under the witness of tens of thousands of onlookers at both ends of the Bosporus Bridge, the Varyag, surrounded by more than a dozen auxiliary ships, slowly passed through the narrowest part of the strait and entered the Mediterranean Sea smoothly. Even vehicle traffic on the bridge was not affected. At 12 o''clock at noon, the leader of the ship, Nikolay Chikel, blew its whistle to pay tribute to the Bosporus, the Black Sea, and the Nikolayev Shipyard. ??This giant ship that spanned two eras finally broke free from the constraints of geography for the first time 11 years after it was launched and headed towards the vast ocean. At the end of this voyage, it will inherit its mission at the beginning of its construction and become another iconic force of the Red Navy... (End of this chapter) Chapter 814 Join the WTO in advance! (Counting yesterday) Chapter 814 Entering the world ahead of schedule! (Counting yesterday) ?While China and Turkey were busy implementing technical details for a few days, other countries were also busy. The most typical example is the British who do not take things too seriously when watching the excitement. ??The BBC directly sent a team of reporters to the Black Sea and filmed the entire process from the tug fleet gathering, to the formation setting off, and then to passing the Bosporus Bridge. ?Especially the last part of passing through the strait, there is even a dark filter and rhythmic music. ??If the Varyag''s hull was not in such poor condition and the superstructure was not neat and tidy, it would have felt like the Red Navy was on an expedition again... ?However, for most countries, this is not really a big deal. Its just a hull that has been soaked in water for more than ten years. Although people who know this matter feel that "the Chinese people probably want to continue building this ship." ??But if they were really asked to judge whether the ship could be built in the end... ?Then most people will still tend to be pessimistic. After all, this is not the first time China has purchased an aircraft carrier. As early as 1984, China purchased the retired aircraft carrier HMAS Melbourne. The price is as high as US$30 million. That was the value of the currency in the mid-1980s. ?At that time, the relationship between China and the West was still in the honeymoon stage, so Australians did not have much precaution. ??Although the Melbourne was nearly an empty shell when it was shipped to China, there were still some equipment left on it that were difficult to dismantle. ?At that time, almost all countries felt that China should be preparing to pack up the ship and put it to use. ?However, after a final inspection, it was found that this aircraft carrier that was in service during World War II was too old, the cost of renovation was extremely high, and it could not maintain stability after being put into use. So it was finally demolished. After entering the 1990s, China successively purchased two retired Type 1143s. ?However, as "heavy aircraft-carrying cruisers", these two ships have a very unique positioning and are obviously not the true aircraft carriers that China wants. ??And it also has the same problems as the Melbourne - the hull is too old, the equipment is severely damaged, and it is difficult to maintain even if it is repaired. In the end, it was not renovated and became a marine amusement park. France also made a proposal to "give away" the Clemenceau class to China for free and only charge maintenance and modification costs, but this was obviously a sinkhole and was ultimately rejected. In short, past experience seems to show that although the Chinese have the idea of ??"building an aircraft carrier", they are still very cautious in the specific implementation steps. ?Except for a small number of personnel who specialize in naval intelligence analysis and the people who saw it with their own eyes on both sides of the strait, the whole incident did not receive much attention. As for China, it has adopted a low-key approach. It only reported the agreement reached with Turkey in the news one day, and did not mention the matter of a semi-finished aircraft carrier at all. ?Of course, the above can only be regarded as minor factors. The main reason is still. ?During this time, most peoples eyes are focused on another thing ??With the Chinese representatives officially signing their names on the WTO accession agreement, this multilateral negotiation with a rare complexity in the world finally came to a happy ending. According to the WTO charter, China will officially become a WTO member in one month. Large companies around the world are reveling and celebrating this, preparing to enter this unimaginable huge market that accounts for one-fifth of the world''s population to reap the huge profits they have dreamed of for many years. The Chinese people are also reveling and celebrating because of this. After all, the whole country has been working hard for this over the past decade or so. In any case, joining the world trading system will bring far more advantages than disadvantages to an economy like China with relatively scarce per capita resources. In comparison, let alone a semi-finished aircraft carrier, even if a complete aircraft carrier is purchased by China, it is probably not a big deal... Chang Haonan was in Ding Gaohengs office and watched the live broadcast of the signing ceremony with the latter. Compared to others, his mentality is much calmer. It has been experienced once in a previous life, and the novelty has worn off. Secondly, as a reborn person, he has a deeper understanding of the two sides of joining the WTO. ?With greater ability comes greater responsibility. For Chang Haonan now, he is no longer a simple technician who can turn a deaf ear to what is happening outside the window and immerse himself in laboratories and projects. ?Those challenges and threats that he only saw in the news and documentaries in his previous life now require him and others to find ways to deal with them. I cant believe that this happened so suddenly Lan Xinzhi stood next to the sofa where Chang Haonan and Ding Gaoheng were sitting, looked at the TV screen and said with some sadness: Before, when I wrote the summary every year, there was always a chapter related to joining the WTO. Now that I have just entered it, I feel...its still a bit empty..." ?Chang Haonan can understand this feeling. It feels a bit like a senior high school student who has just finished the college entrance examination. Ding Gaoheng next to him relaxed and leaned on the backrest: Its a matter of course. As he spoke, he looked at Chang Haonan, who was holding up a tea cup and blowing on it: In recent years, we have indeed done a lot of things that are of great significance to promoting Chinas accession to the WTO. Especially the failure of the Americans attempt to bring down the euro with the help of allied operations was a final push. The latter nodded with deep feeling from the side. The time point of joining the WTO in this timeline is about one year and ten months earlier than in the previous life. Mainly due to the wave of operations from April to May last year. On the one hand, the military card held by the Donkey Party was declared invalid, and the general election at the end of 2000 basically entered garbage time. ??And if you want to leave some thoughts four or even eight years later, the only remaining method is to seize the opportunity to use the WTO to open up the Chinese market. Otherwise, if the Xiang Party waits until the Xiang Party comes to power to do this, it will probably offend the Donkey Partys iron ticket warehouse to the other side. On the other hand, China signed a bilateral trade agreement with the EU at the end of last year that is basically equivalent to WTO conditions, opening up the market in quite a few areas. ??If China continues to be stuck in WTO accession negotiations, it will be equivalent to allowing the EU to exclusively enjoy the Chinese market after the degree of openness is expanded. The latter is afraid that he will die laughing. Therefore, starting from the second half of last year, the progress of negotiations that had been stalled for a long time suddenly accelerated, and new results were produced almost every time the two sides met. According to the head of the negotiating delegation, he has never seen Americans with such sincerity New ambition. Ding Gaoheng raised his head slightly and looked at Lan Xinzhi, who was standing behind him. Joining the WTO is definitely beneficial to our country in general, but for your Equipment Industry Department, Im afraid we have to be prepared for the impact (End of this chapter) Chapter 815 The pros and cons of joining the WTO Chapter 815: Gains and Disadvantages of Joining the WTO As for Ding Gaohengs concerns, Yilan Xinzhis position is of course impossible to echo, but needs to express its position: Dont worry, Director Ding, we will work closely with front-line enterprises and brother departments to properly deal with the new challenges brought about by Chinas entry into the WTO! As he spoke, he glanced at Chang Haonan next to him with a slightly grateful look. Although the operation of the Equipment Industry Department has gradually been on the right track in the past year, as the director, he will never forget who provided huge technical and market support when the work just started. It can be said that without the shocking turnaround of the bearing and gear product line in Europe two years ago, China''s machinery manufacturing industry would have been groping in the dark for a long time. As for what to do to meet the challenges Dont even think about it. It is good to be able to survive the impact of others and succeed. ?Of course, until now, Huaxia products are still not very competitive in the high-end European market. ?However, being able to go from "a no-name brand that you won''t even look at unless all other products are sold out" to "a high-volume, cost-effective choice" is already a huge improvement in itself. Brand effect, whether it exists or not, is a qualitative change. At the same time, Chang Haonan on the sofa also felt the eyes from behind. Frankly speaking, even he cannot estimate the impact that China''s joining the World Trade Organization nearly two years in advance will have. As Ding Gaoheng said, most industries must be prepared to be impacted. In this process, losses and losses are certainly unavoidable. On the other hand, forcing certain industries to make changes through external forces was originally one of the goals that China hoped to pursue when joining the WTO. ?Chang Haonan suddenly had a sense of dj vu as a parent. ??I want my children to go outside to receive experience, but I am also worried that my children will be injured and suffer a disadvantage. How to grasp this balance is an eternal problem. Director Lan should not have too much psychological burden. He did not look back, just stared at the news picture on the TV screen: When we were planning to establish the Equipment Industry Department, we made a decision to focus on the big ones and let go of the small ones. It is not necessarily a bad thing if some fields are subject to some external impacts..." ?Although this sentence is in response to Lan Xinzhi, to a large extent, Chang Haonan is also saying it to himself. ?The good news is that his current two main businesses, the Aviation Power Group and the Torch Group, will basically not change as a result of Chinas entry into the WTO The former is relatively closed, while the latter has already been sold all over the world. The day China signed the agreement was January 11, 2000. ?Chang Haonan originally thought that no matter how efficient it was, the impact of joining the WTO would not be apparent until the agreement officially came into effect. Therefore, after he finished dealing with the Varyag fleet passing through the Black Sea, he returned his main focus to the Torch Laboratory. First, I found a project for Li Yabo from Haofei Group, which was to develop an all-composite shell with a diameter of 1 meter. Then, it is about continuing to advance the topic of the manifold learning algorithm at hand. And focus on some trends in differential geometry According to the previously set schedule, Perelman will visit Beijing Hang University at the end of this month. ?Although Chang Haonan is not a professional mathematician, when facing such a big boss, respect must still be given. However, the peaceful days did not last long. ?Before waiting for Perelman, he first waited for another completely unexpected acquaintance. Lao Qin? Chang Haonan received a notice that several comrades from the petroleum system wanted to discuss projects with him. When he entered the reception room, the first thing he saw was Qin Wengui sitting on the sofa on the left. ?Seeing Chang Haonan walk into the room, everyone who was sitting on the sofa chatting stood up almost at the same time. ??Qin Wengui, the only person who had known Chang Haonan before, quickly stepped forward and shook hands with him: Hello, Professor Chang. Then, he turned sideways and introduced the other people who had stood up: These are our comrades from the Pipeline Bureau of China Petroleum and Natural Gas Company. They would like to come to you to consult on some engineering mechanics issues. This is indeed Chang Haonan''s housekeeping business. It''s just that he has never had any business dealings with the oil system before. Immediately afterwards, Qin Wengui stretched out his palm and pointed at the other person who had been standing next to him: This is Huang Hewei, Director Huang, Deputy Director of the Pipeline Bureau and General Manager of the Domestic Business Department. ?It seems that this person should be the talker who led the team here today. As soon as he finished speaking, Huang Hewei took a step forward, shook hands with Chang Haonan and said enthusiastically: The year before last in the Great Hall, I saw with my own eyes Mr. Changs style of winning three awards alone. At that time, I wanted to get to know you, but I never had the chance. Today I finally caught up. The flattery is spot on, but it doesnt make people feel too deliberate. ?However, Chang Haonan has seen a lot in these years, so he just smiled casually: "That''s all in the past. When it comes to research, the main thing is to look forward." As he spoke, he stretched out his hand to signal everyone to sit down again, and he also sat on the main seat in the reception room: I dont know if Director Huang has brought a team here this time. What specific questions do he want to consult? ?Seeing that the topic has entered, the expression on Huang Hewei''s face also became serious: I think Mr. Chang may have heard of the West-East Gas Transmission project? Chang Haonan nodded: I saw it on the news. ?Even if you havent had time to pay attention to this kind of big project in this life, you must have heard about it in your previous life. Then Ill keep the story short and wont introduce the situation of the West-East Gas Transmission Project itself. ? Huang Hewei continued crisply: Thats right, our Pipeline Bureau is preparing to bid for the construction projects of two sections of the Longyuan section of the West-East Gas Pipeline, with a total length of approximately 430km. However, after on-site investigation, we found that this area contains subsidence zones, loess caves, sandy soil, seasonal frozen soil, etc. The geological characteristics are very complex, and the gas pipeline is a thousand-year project related to peoples livelihood, so there is no room for sloppiness. " "A few days ago, I accidentally heard that you had cooperated with the Institute of Computing Technology of the Academy of Sciences to produce a set of engineering design tools for the Qinghai-Tibet Railway project. The railway department rated it very highly, so I thought about having Comrade Qin Wengui introduce it. Lets see if you can give us some guidance from a theoretical level, which can also improve the success rate of our bidding. Of course, you dont have to worry about funds. Compared with other units, Huaxia Petroleum has relatively sufficient funds... Chang Haonan believed this. As for the petroleum system, there is certainly no shortage of money. but Director Huang, with all due respect. He considered the sentence: If I remember correctly, the West-East Gas Transmission Project has not officially completed the project approval process yet, right? ?As Party B, you still need to understand the situation clearly before taking on a topic, especially such a complicated topic. If it is an ordinary project, it is possible to find someone to do the work first, and then go through the bidding process. ??However, the West-East Gas Pipeline is a landmark project of the western development that has been approved by the highest level. Anyone who dares to do this may think it will last forever. High and low projects must be approved first, then tendered and finally started. ??And if you calculate it this way, even if you plan for a rainy day, the other party will arrive too early. You must know that for a state-owned enterprise, it is quite troublesome in terms of the process to spend money for research when there is no project. ?In Chang Haonan''s impression, the Pipeline Bureau is a semi-monopoly unit, and it seems that it is not appropriate to rush into this situation. Alas... you always dont know something. Huang Hewei raised his hand and smoothed his hair: Isnt our country joining the WTO? One of the conditions is to open the West-East Gas Pipeline to full market operation and open the pipeline construction project to open bidding around the world. Is that so? ?Chang Haonan raised his eyebrows, with a hint of surprise in his tone. Previously he had talked to Ding Gaoheng and Lan Xinzhi about the catfish effect that might be caused by joining the WTO. As a result, it has only been a few days, but the impact has already been seen. I can only say that the effect was immediate. But Huang Hewei next to him didnt know why Chang Haonan was surprised. He thought it was this comrade with a military background who was worried about the countrys energy security, so he quickly explained: Only the pipeline part has been brought into market-oriented operation. The upstream oil and gas fields and downstream receiving stations are still in our hands, so we dont have to worry about energy security. "It''s just that we feel that the West-East Gas Transmission is a key project of our country after all. If all the projects are taken over by foreigners after the public bidding, it will be a big loss. Therefore, after discussion within the bureau, it was decided that at least Concentrate our efforts to win the most representative section. Considering that our technical foundation is relatively weak, we must make some targeted preparations in advance, so I thought of coming to you." ?Chang Haonan nodded slightly, indicating that he understood: Do you have a more detailed report on the geological conditions obtained through your investigation? Of course there is, and we brought it over this time too. As he spoke, Huang Hewei took out two thick piles of information from the briefcase next to him and handed them to Chang Haonan: Please take a look. The latter took it, put it on his lap, opened it and looked at it. ?It is true that as Huang Hewei said just now, there is no serious foundation under these more than 400 kilometers of pipelines. It is either loess or sand. If the pipelines are laid directly on top, they will settle and deform in a few years. If you consider geological disasters and extreme weather, it will be even more troublesome. Absolutely a **** of a construction project. ?Its just that From another level, it also means that it is challenging. ??More importantly, compared to pure engineering mechanics, this topic will also involve areas that Chang Haonan has always wanted to study but has not yet found a focus - Computational materials science. So, he decided. Next. (End of this chapter) Chapter 816 Market competition education Chapter 816: Education in Market Competition Even though I decided to take it, for such a big job and involving the background of the West-East Gas Transmission, I definitely cant sign the contract with just one persons nod, just like buying vegetables at the wet market. Especially considering the nature of the Torch Laboratory, this matter needs to be reported to the school and even the group. At least let me know. ?Of course, Chang Haonan himself is a professor at Beijing Hang University, and he is also the leader of Torch Group and even Aviation Power Group... So his decision-making power is also very important. Director Huang. Chang Haonan said and put the two materials on the table together: If this matter is to be implemented as a research topic, this level of data alone will definitely not be enough. I will also need more detailed geological analysis and investigation. You know, our laboratory has just been established. Firstly, there are not enough manpower, and secondly, there are no experts in the field of geosciences, so For those foreign companies with rich experience in the field of pipeline construction and oil and gas transportation, it is often only necessary to conduct sampling at a few points to infer what specific technologies should be used for local construction. This is the advantage they have accumulated over the past decades or even hundreds of years. As a newbie in this field, Huaxia Petroleum does not have these things at hand, so it can only start from scratch and use "stupid methods" bit by bit. ?Even with Chang Haonans technical support, at most, the number of failures or repetitions in the project can be reduced. It is impossible to save on advance preparation. On the contrary, because numerical analysis requires more detailed data, the requirements have become higher. Huang Hewei naturally understood what Chang Haonan meant instantly: "Don''t worry, our bureau has entrusted comrades from the Exploration and Development Research Institute to conduct more detailed exploration of the areas along the line that have not yet been explored. Huaxia Petroleum already has oil and gas exploration business in Longyuan. The reason why the group decided to specialize in these two The bidding section is also because it is relatively close to our existing projects, so it will be more convenient to send a team there. After the project is officially launched, we will take the lead in setting up a platform for you to communicate directly with the Exploration Institute. If you are willing, you can also share the project with them. At that time, you only need to indicate the budget and work allocation in the contract. If it can be like this, that would be the best. Chang Haonan nodded: "Well, in principle, I am willing to accept this project. After you go back, try to prepare a complete project plan and research agreement before the year. After I confirm with the school and the group that there is no problem, we can officially start ?However, after hearing his request, Huang Hewei turned his head directly and gestured to a staff member who had always been sitting at the bottom. The latter immediately left his seat, took out a kraft paper-sealed portfolio from his bag, and handed it to Chang Haonan. ?This set of smooth operations, coupled with the slightly flattering smile on Huang Hewei''s face, almost made the latter think that this was to give himself extra benefits. ?However, after subconsciously taking the file bag, I realized that it should be A4-sized document paper, not banknotes. Chang Haonan, who was secretly relieved, took apart the binding rope. Inside the bag are three copies of the stapled agreement document. "Mr. Chang, we have already prepared what you mentioned before coming here. Please take a look at it in the next two days. If you have any questions, you can contact our bureau office, or you can contact me directly. This is mine. business card." Huang Hewei took out a beautifully printed business card from the inner pocket of his coat, handed it to Chang Haonan, and then continued: If we can reach an agreement on the content of the agreement, we hope to implement the issue before the Spring Festival. ?Chang Haonan did not respond immediately, but just lowered his head and opened the agreement. I have to say that the efficiency shown by Huaxia Petroleum in this matter made Chang Haonan feel a little ashamed. ?Especially when it comes to money, its amazingly positive The project is planned to last three years, with a total funding of 2 million yuan, 50% of which will be paid in the first year, and 25% in each of the following two years. This is the year 2000. And it is a purely computational research content. The research work is also carried out by a third party. In other words, the cost is almost only the operating expenses of the supercomputer. ??As for the electricity bill, Torch Laboratory can also enjoy subsidies from the capital, and the price is more than half lower than that of city electricity. It can be said to be very generous. You must know that the petroleum system has not yet been completely de-administrated. If we follow the normal process, it will take more than half a year from the proposal of the project to its implementation. I am afraid it will be difficult to complete. Hearing what Huang Hewei meant today, he planned to shorten the time consumed by this process to half a month. It can be seen that this is a sudden open competition, and it is really urgent. It is not even ruled out that the funds were raised by borrowing some gray means (small treasury). ?However, as long as the agreement itself is compliant, the source of funds will not have any impact on Party B. Instead, he had some opinions about the payment method. Director Huang, regarding the payment method of this research fund, can you consider changing it to a one-time payment at the beginning of the project? ?If this kind of request were put aside 20 years later, it would be basically unnecessary to think about it. Unless the project duration is only one year in total. ??But if any boss dares to sign such a project, he will probably be drowned in the spit of his graduate students. ?However, at the turn of the century, funding management, especially funding management for horizontal projects issued by companies, was generally wild. ?As long as Party A is willing, it is not impossible to give it all at once. In fact, when Chang Haonan was studying for his Ph.D. in Du Yishans research group, several projects were operated in this way. "this" Huang Hewei obviously hesitated: Mr. Chang, let me tell you straight away. Within our group, if we use more than one million funds, we must strictly implement the approval process. That efficiency... You are also the leader of a large central enterprise, so you should have an idea..." This is basically an admission that they took the money out of the small treasury. And if the amount is too large, there is no way to go to the small treasury. After a pause, Huang Hewei continued: And Mr. Chang, for a three-year project, its impossible for you to finish everything in the first year... ?Chang Haonan looked at Huang Hewei and opened his mouth several times, but in the end he didn''t speak. Actually, this is what he was thinking about. What is the concept of three years? ? It took him just over three and a half years from designing the J-7F in class to installing the turbofan 10 on the J-10A and J-11B. ??Although the cycle will definitely be longer when it comes to ground-breaking projects, it is unlikely to take that long. If it is a general project, then he can put the results aside after finishing them all. Then gradually hand in a little bit every year until the end of the question. But this time, after all, it is about a strategic project like the West-East Gas Transmission. It must be unreasonable to deliberately delay time. ??However, if the question is completed in advance, the funds will be wasted. ?Compared with other scientific research institutions of the same era, Torch Laboratory is not short of money. But the more funds, the better. At this time, Qin Wengui, who was standing next to him, saw the crux of the problem: Mr. Chang, Director Huang. ?He spoke quickly, breaking the slightly awkward silence: I think it would be better to add an additional clause at the end of the agreement, stating that if the project can be ended early, the remaining funds will be paid to the Torch Laboratory in the name of personnel expense subsidies or equipment fee reimbursements. How about that? ??If this proposal came from Chang Haonan, it would definitely seem a bit deliberate. But Qin Wengui solved this problem by speaking out. So, both parties were very happy and agreed to keep in touch after returning. If all goes well, the agreement will be officially signed in early February. ?After chatting about work-related topics, Chang Haonan followed the usual practice and expressed the hope that the other party would stay and have dinner together at Torch Group. ?However, Huang Hewei decisively refused: Mr. Chang, we accept your suggestion, but before we get off work today, we have to go to the Exploration and Development Research Institute to check on the situation there, so as not to delay the business. After speaking, he pointed to the agreement on the table next to him. According to the content, Torch Laboratory and Exploration and Development Research Institute belong to Party B in parallel. It needs to be signed by both parties to officially take effect. More importantly, the work that the Exploration Institute is responsible for is the basis of the entire research. Okay, lets talk about it later when we have a chance Chang Haonan stood up and sent Huang Hewei and his party outside the computing center. After watching several people get into the car, he looked down at the agreement in triplicate in his hand, reached out and flicked it lightly. Then he said to himself: This market competition seems to be able to educate people... (End of this chapter) Chapter 817 ZY2, hyperspectral remote sensing satellite Chapter 817 Ziyuan No. 2, hyperspectral remote sensing satellite ?The entire research agreement is dozens of pages long, and Chang Haonan has neither the energy nor the legal knowledge to read it bit by bit. Therefore, after he only confirmed that a few key clauses met his requirements, he threw the three templates to the group''s legal department, the school''s legal affairs office, and Liu Chenchen in the laboratory, and asked several parties to confirm whether there were any other parts. problems or bugs. The happiest person about this matter is actually not Chang Haonan himself For him, it is just a project with a funding of about 2 million yuan. Although it is not a small amount, it is not a big deal compared to other projects he has done in the past. ??If the research content was not related to computational materials science and could be used as a good entry point, then he might even hesitate to proceed. But Tang Lintian. ?Of course, its not because of funding issues. For general research groups, the funds applied for are generally plucked by schools, with one-third to one-half being withheld. ?However, the treatment of the Torch Laboratory in this regard is obviously different, and it is impossible for the school to do such a simplistic thing. Its because of the broader background of this topic. ??Although Beijing Airlines has now become one of the 10 founding universities of the 985 Project, Tang Lintian soon discovered that such a name alone did not seem to be enough. It doesnt mean that if your schools name is put together with that of Qinghua Yanda, its status in the eyes of ordinary people will be on an equal footing with others. Let alone these two, even among the five schools in East China, Beijing Airlines still lacks some influence. ?The things Chang Haonan has done in recent years are indeed earth-shattering in the industry, but due to well-known reasons, most of them are not convenient for publicity. At the end of the day, the schools business in the past was too monotonous. China has a large population base, so it seems that there are a lot of people who are interested in aviation, or people who are interested in aviation. But if we really talk about the proportion, we can see that they belong to a niche group. It doesnt matter if the cake is not big, there are still several schools to share it with. Therefore, as the principal, Tang Lintian currently wants to expand the schools reputation and business. The previous mathematical paper by Chang Haonan and this unexpected surprise from the petroleum system are undoubtedly very important landmark events. Professor Chang. After the school''s regular end-of-semester examination meeting, Tang Lintian did not leave immediately. ?After Chang Haonan stayed at the school as a professor, he took up half of Fang Zhens course. ?Although you will definitely not go to class, you still have to attend these meetings. Hearing someone calling him to stop, Chang Haonan, who was about to run away among the crowd, turned around and found that Tang Lintian was still sitting at the head of the conference table: Principal Tang? By the way, Principal Tang, you should have read the agreement I submitted to the schools legal office a few days ago. ?There should be someone dedicated to deal with this kind of thing, but Chang Haonan has already met anyway, so why not ask by the way. Have seen it, I was just about to tell you about it. ??Tang Lintian stretched out his hand and motioned for Chang Haonan to sit next to him: We have analyzed the content of the agreement with the legal consultant we have cooperated with in the past, and there is nothing wrong with it. To be honest, as for the last additional clause in it, I have never even thought about it before. What he was talking about was naturally that "if the project is completed ahead of schedule, all subsequent research funds can still be obtained." ?Chang Haonan just smiled: Comrades in the petroleum system still trust me, and they can also feel that the West-East Gas Transmission is completely operated in accordance with market principles, which puts a lot of pressure on them. Eh...it would be better if they were under more pressure. They were all talking among themselves. Tang Lintian almost blurted it out, but he probably felt that it didn''t seem right, so he quickly added: I mean, pressure is motivation After some chatting and laughing, Tang Lintian suddenly said seriously: "Professor Chang, in fact, it''s not just you recently. There are several other research groups in our school that have also received research topics related to the West-East Gas Transmission Project. However, none of them are from Huaxia Petroleum. Directly funded. Im thinking that for such a complex system project, there must be connections between several of your projects. Maybe we can coordinate and cooperate with each other? ?Chang Haonan did not interrupt, but just motioned for the other party to continue talking. Like this Meng Zhenyuan, Associate Professor Meng, he received his project from the National Space Administration. "Um?" Following the direction indicated by Tang Lintian, Chang Haonan noticed that there was another young-looking person sitting in an inconspicuous position in the conference room. After hearing his name, the man stood up and came to the seat next to Chang Haonan. Hello, Professor Chang, I am Meng Zhenyuan, from the School of Astronautics. ?Completely contrary to his name, Meng Zhenyuan doesnt speak loudly and even gives people the impression of being a bit introverted. Chang Haonan had no impression of this person. Since Beijing Airlines specifically changed its name from "Beijing Aviation College" to "Aeronautics and Astronautics University", it must be both aviation and aerospace. But no matter in the previous life or this life, he never paid much attention to the other side. In fact, at this time of the millennium, Beijing Airlines aerospace professional presence is not particularly strong. ?However, a professor from the Beijing Institute of Aeronautics and Astronautics later became an astronaut and became popular all over the country. That is another story. Zhenyuan, please introduce your project to Professor Chang. ?Although Chang Haonan has only been teaching for half a year, his name is definitely well-known within Beijing Airlines. ??If the cooperation mentioned by Tang Lintian can really be realized, then it cannot be anyone else who takes the lead. Therefore, whether this cooperation is feasible or not must be left to Chang Haonan to judge. "good." ? Meng Zhenyuan got to the point directly: In fact, according to the original plan, the West-East Gas Transmission Project should not be officially launched for another two years, but because the WTO accession negotiations involved relevant liberalization clauses, it was moved forward. "But as a result, the previous survey plan along the entire pipeline project cannot meet the requirements. In order to improve efficiency, in addition to sending two remote sensing aircraft to participate in aerial remote sensing, the superior unit has also planned to launch resources in advance since last year Two remote sensing satellites No. 01 and 02. "Ziyu-201 is equipped with a hyperspectral digital imager specially imported from France at the end of last year. It has 244 spectral bands and can provide a spatial resolution of 10 meters and a spectral resolution of 7.5nm. The hardware The performance is quite advanced. But this is the first time our country has come into contact with this type of satellite-borne hyperspectral remote sensing equipment. My research team is responsible for extracting and analyzing remote sensing data at several important locations along the route..." With the current relationship between China and the EU, restrictions on such non-military (at least on the surface) equipment have basically existed in name only. Except for some of the most cutting-edge products, they can basically be purchased. Just need to pay more. So, our cooperation is to Chang Haonan looked puzzled. "During the research process, the accuracy of extracting remote sensing data needs to be compared with on-site measurement data. Even during the application process, it needs to be checked at certain distances and times. Our project is obtained from the space agency. If you need to contact the exploration department to get it, the procedure will be more complicated..." ?This time Chang Haonan understood. So, Professor Meng is interested in the first-hand geographical and geological information I can get from the Exploration and Development Research Institute for this topic? Thats right. ?Meng Zhenyuan nodded: This can save one administrative procedure and the efficiency will be much higher. Of course, we cannot take advantage of you unilaterally. After the aerospace remote sensing data stabilizes, we will provide it to your project as soon as possible! (End of this chapter) Chapter 818 Perelmans visit Chapter 818 Perelmans visit ?This kind of win-win thing, not to mention that the power of decision still belongs to himself, Chang Haonan naturally has no reason to disagree. ?But there is still a key issue. Professor Meng, from what you just said, the two satellites should not have been launched yet. Is there a specific planned time? Chang Haonan asked: You know, my tasks here are also quite heavy, and I cant wait for the satellite to go up to the sky before starting research. ?Meng Zhenyuan quickly waved his hand, indicating that he didnt need to wait for a long time: According to the earliest plan, the Ziyu-2 01 satellite should be launched no later than the end of this year, and the 02 satellite should be launched no later than the end of 2002. "But at the end of last year, the National Space Administration temporarily adjusted its plan and arranged the launch of the two satellites in February and April this year respectively. At that time, together with the already-launched Ziyuan-101 satellite, they will form a revisit cycle of about 20 Hourly remote sensing satellite system. However, specifically for our research, only the Ziyu-201 satellite is equipped with hyperspectral detection equipment. In addition, this satellite is not designed with a side swing function to ensure imaging accuracy, so the revisit period is still almost a month. ?Chang Haonan''s eyes lit up. ??If the 01 satellite can be launched in February, then the first batch of remote sensing data should be available by March at the latest. Although in geology, neither aircraft, satellites nor numerical calculations can truly replace field surveys, there is no doubt that they can greatly improve the overall surveying and mapping efficiency. ?Hone the knife and cut the firewood. Anyway, there is still a new year in between. Waiting until March actually wont lose much time. ?However, the other partys answer still puzzled him: Its so far in advance... So if the satellite is launched according to the original plan, will the satellite, especially the 02 satellite, have to wait on the ground for more than a year? "Well" Hearing Chang Haonans question, Meng Zhenyuan touched his nose: "Mr. Chang, you may not know this. On the one hand, due to the frequency of rocket launches, it is not particularly uncommon for satellites to have to wait several months or even longer after completing factory inspections. On the other hand, the two Ziyuan No. 2 The satellite was indeed rolled off the production line much earlier than originally planned by using some imported parts. So thats it Chang Haonan nodded: It seems that the country has put a lot of effort into cooperating with the market-oriented operation of the West-East Gas Transmission ? He ??knew before that the West-East Gas Transmission Project was part of Chinas systemic energy security strategy, but it was indeed unexpected to modify the space launch plan specifically for this purpose. However, this was a misunderstanding on his part. This time it was Tang Lintian who explained: "The early launch of these two satellites is not entirely for the West-East Gas Transmission Project. According to the national plan, there are almost six or seven strategic-level projects that will be launched or started in the next few years, each of which requires a large number of geographical information systems ( GIS) data. If we rent a remote sensing satellite from a foreigner, not only will the price quoted by others be higher, we will also need to provide on-site measurement data for verification and comparison, and we will even be asked to grant them geographical surveying and mapping rights! Speaking of excitement, Tang Lintian knocked on the table with two fingers, with a bit of anger in his tone: This is part of national sovereignty, how can it be opened to outsiders casually? In comparison, just using some imported parts on satellites is not a big deal. ?At this time, Meng Zhenyuan next to him also interjected: Actually, the key is that in the past year or two, due to various reasons, we have been able to buy some parts that were not available in the past. If we had left it in the past, even if we were willing to pay for it, we might not be able to spend it. This statement is relatively realistic. Take France, which sells the hyperspectral detection equipment. Although it is already a relatively active country in Western countries in exporting technology to China, at critical times, it will often restrict exports in the name of "affecting national security." set. but now ??Its so funny, youve already taken over the power of your next-generation main fighter jet and started joint development with us, so why are you pretending to be a big-tailed wolf? So, if someone says that you affect his national security, then you''d better really affect his national security. Collaboration within the same school naturally does not need to be as serious as with outsiders. ??Witnessed by Tang Lintian, the two research groups simply signed a cooperation agreement and expressed their willingness to share some of the data generated during the research process. As for the remaining groups, the topics at hand are relatively light in magnitude, and they should just focus on the projects of Chang Haonan or Meng Zhenyuan. After this matter came to an end, as time passed day by day, it soon came to the end of January. ?Although there are other matters at hand that have not been completed, Perelman''s visit is indeed more important in comparison. On the one hand, this man was already considered a great figure in the field of differential geometry even before he solved the Poincar conjecture. On the other hand, although Chang Haonan is not ready to invest major energy in purely theoretical fields at the moment, based on his experience over the years, the improvement of [theoretical level] experience and level in the system will be of great help to all types of scientific research work. Now that his theoretical level has reached LV3, it is very difficult to improve his level by completing ordinary small projects. ? And face-to-face communication with a top mathematician is likely to get twice the result with half the effort. In view of this, Chang Haonan simply went to the airport in person and picked up the visiting team from the Steklov Institute of Mathematics. To be honest, if Chang Haonan hadn''t specifically asked someone to look for the other party''s information, it would have been difficult for him to recognize at a glance that the man in front of him, wearing a semi-old cotton coat, with a full beard and a slight bald head, was the famous mathematician Grigory. Perelman. Hello, Mr. Perelman. Chang Haonan stepped forward and shook hands with the other party. ?Perelman has been studying in the United States for many years and can naturally understand English. It seems that you are Chang Haonan, Professor Chang. ?The other party looked Chang Haonan up and down, and then continued: Ever since I saw the paper in November last year, I have been wondering what kind of person its author would be. When I met him today, I found that it was indeed similar to what I thought. ??Although Perelman is indifferent to fame and fortune and has a somewhat eccentric personality, he still looks like a mad scientist. ??But this does not mean that he is a withdrawn or mean person. In fact, the indifference he usually displays is simply because he rarely encounters equally matched opponents. So, after meeting Chang Haonan, he behaved more like a "normal person". Lets get in the car first and lets talk on the road. ?Chang Haonan motioned to the other party to the minibus next to him. ?Perelman nodded, but before taking a step forward, he looked at the two entourage members standing next to the car door. Judging from the way the two of them crossed their hands in front of their bodies, they should be the members responsible for security. Actually, theres no need to create such a big battle. Im just an ordinary person who knows a little bit about mathematics He said to the former while following Chang Haonan into the car. But Chang Haonan''s English is not good enough to understand clearly the sentences with Slavic accent and speaking at an extremely fast speed. Hence this sentence is conveyed through translation. After hearing this, he could only sigh. Today I met my opponent. At all levels. Chang Haonan originally wanted to reply: Don''t think too much, these people are protecting you just by the way, mainly to protect me. ??But while he was hesitating, Perelman had already taken out a notebook from his cotton coat pocket and began to discuss with him the convergence theorem and singular model mentioned in the last email... ?The three cars stopped and went all the way. Perhaps they were catching up with the rush hour, so they didnt arrive at the arranged accommodation until near evening. ? Before getting out of the car, Chang Haonan was shocked by the greeting team headed by Tang Lintian and consisting of dozens of people outside. Not to mention Perelman next to him. ??The latter can be considered a person who has seen the world, but even in places like MIT, Princeton, and Columbia, he has never encountered such a pomp. Chang, I believe that you, China, must be a promising nation. He put the notebook back in his pocket and looked at the scene outside the window. ?) Chang Haonan, who was already a little confused, was even more confused by this out-of-the-way sentence. ??He even checked the other person''s expression specifically and found that it looked sincere and didn''t look like he was being arrogant: What does this have to do with the hope of our nation? I have never seen anywhere else where a mathematician is treated with such dignity. ?Chang Haonan is a little difficult to stretch. It is said that after I entered the Pass, a great scholar would argue for me. How come someone has already defended me before I even entered the customs? ? He ??said that this was just because few big figures in the field of mathematics came to China for academic exchanges in the past, so scholars of your level are already considered extremely rare guests. ?Havent you seen Tian Gang from Yanda University next door? In order to invite a relatively famous mathematician to give a report on the platform, he begged his grandfather to sue his grandma. But this is certainly not the case in the American mathematics community where big bosses are everywhere. The degree of emphasis is naturally different. And if you dont disappear after proving the Poincar Conjecture, you can probably experience more grand treatment than this anywhere in the world... (End of this chapter) Chapter 819 Two ways of proof Chapter 819 Two ways of proof Perelman himself understands the problem, but does not like this exaggerated pomp. ?Perhaps this is one of the reasons why he chose to retire after proving the Poincar Conjecture. So, in the end, these dozens of people were dismissed. ?Only a few people with high enough status are left behind who are really difficult to drive away. ?Among these people, Perelman only had a brief encounter with Tian Gang, and as for the remaining few, he really had little impression. ?So after Chang Haonan introduced them, they just said hello and walked to the hotel lobby with the other people who got off the car. It''s not that China can''t even find a third scholar with a name and a surname who has appeared in a well-known mathematics journal - although the field of theoretical mathematics in China is a bit thinner, it is not so shabby. Mainly those who are here today are either researchers in the field of differential geometry or leaders of several colleges or schools with strong mathematics majors. Inside these people. There is really no one that is too famous. Scholars from other unrelated research fields may come to listen to a lecture, but they will certainly not join in the fun. Thats why there was this rather embarrassing scene ?Of course, its definitely not Chang Haonan and Perelman who are embarrassed. By the way, Professor Tian. Perhaps to lighten the atmosphere, someone suddenly asked Tian Gang next to him: I remember that according to the arrangement, Professor Perelmans report should be scheduled for tomorrow morning, so on your side ?This question was somewhat inappropriate, and the atmosphere at the scene did not really relax. Tian Gang looked at the retreating figures of the group over there and sighed softly: I have no choice, I bumped into this guy, so I can only postpone it for a few days. To say he is depressed, he must be depressed. After preparing for so long, only to be upstaged by a school that is not good at mathematics at all, who are you going to explain to me? ?But its not like he has nothing to do. At least at this time, Perelman was not among the most influential mathematicians. After all, he hasnt won the Fields Medal yet. ?Hence, Tian Gang''s idea is also very clear. He just needs to use his connections to find a way to hire a higher-level boss. Thinking of this, he had already begun to select suitable and possible candidates in his mind... Perelmans visit had been publicized as early as the beginning of the year, so on the day when the lecture was scheduled, the venue was already packed more than an hour before the official start. In addition to professors and researchers, there are actually many students. Some of them are mathematics majors and really want to listen to something. ?There are also some who are just joining in the fun. At the front of the lecture theater, todays title is displayed on a huge curtain Reduced Volume and Non-local Collapse Theorem ? and slightly below, indicate the inviter of this lecture: Professor Chang Haonan. Chang Haonan...is he Chang Haonan who proved Changs Lemma last year? In the back row, a student-looking audience member whispered to the companion next to him. Obviously, this name is not as famous in the mathematics world as it is in the aviation world. It should be so. I remember that Changs Lemma is also a result in the field of differential geometry and is very close to Perelmans research direction... The companion next to him replied: And there are very few scholars studying this field in our country, so it is unlikely that there will be two people with the same surname ?Of course, more people are still paying attention to the topic of todays lecture. Its not that Chang Haonan is unimportant. Instead, it means Professor Tian, ??this non-local collapse theorem, pardon my ignorance, is it the latest achievement in the field of differential geometry? Another professor sitting next to Tian Gang asked with a slight frown. He feels that even if Chinas research level in this area is not high, it should not be able to understand other peoples results. ?However, today I didnt even see the speaker, so I started doubting life ??More than just the results, why cant I even understand the title? But Tian Gang also hesitated for a moment, and then shook his head: Non-local collapse is a very common concept, but the theorem... Obviously, he hasnt heard of it either. But as a scholar who gave a 45-minute report at the International Congress of Mathematicians, he still has a lot more knowledge: However, it is said that Perelman has a very strange habit. He sometimes publishes his results directly without going through any journals. Is there such a person? The professor next to him was immediately shocked: In other words, is this possibly a new achievement? Hmmits possible. Tian Gang nodded: "But strictly speaking, any result cannot be called a theorem before it is widely recognized by the mathematical community..." ? ? ? Having said that, almost everyone who heard this conversation made the same move in unison. . Take out the notebook. Open. Take out the pen. Prepare records. The reason why I say almost is because some people are still busy borrowing pens and paper from around, so the response is a few beats slow... Actually, we cant blame them for not bringing pens on such occasions. This kind of lecture, whether at home or abroad, is actually not of high academic value. After all, in most cases, what you talk about is what you have already published. And these contents have already been seen by those who should see them. So the core depends on the influence of the person standing on the stage. Its just that I met such a strange person today. ?While everyone in the audience was guessing the content of todays lecture, Perelman finally appeared on the stage, wearing a neat suit. But his first sentence did not mention himself: I think everyone here should have read the paper published by Professor Chang Haonan in the Annals of Mathematics in December last year. ?His English still has a peculiar accent and vibrato, but it is obvious that he has deliberately slowed down his speaking speed to ensure that most people can understand him. So, when this sentence ended, everyone''s eyes turned to the edge of the first row. ?Chang Haonan is sitting there. He had previously known the title of Perelman''s lecture today. Although he did not know the content, considering that the non-local collapse theorem was something that the other party had discussed with him via email, he was already prepared for his name to be mentioned. Prepare. Facing hundreds of looks, Chang Haonan just turned around slightly, smiled and nodded. Based on Changs theorem, I discovered another rule. ?Perelman turned around and pulled several blackboards to his side. For mathematicians, even if they have PPT and projectors, they often prefer traditional tools such as blackboards or pen and paper. Next, Im going to show you how to give a local injective radius on a specific higher-order manifold. After speaking, he began to write quickly on the blackboard. Let g(ij) be a complete manifold on M, and satisfy g(ij)/=2R(ij) The secretary next to him also started to follow his steps and kept turning the pages of the PPT... Hour and a half. A full hour and a half. ?Perelman spoke with ecstasy. The audience in the audience was in a state of ecstasy. ??The Ricci flow on high-order manifolds is extremely abstract. In addition, it has not been long since Chang Haonan''s paper was published. Not everyone can understand it and use it flexibly like Perelman. Therefore, except for Chang Haonan, who had seen this idea a long time ago, he basically didnt understand it. Including Tian Gang. ?But he is better than others, at least he can barely keep up with his thinking. Of course, this is not unusual for theoretical mathematics. After all, it is a new theorem. Let alone a lecture, even a paper will take several days or even months to study. So, everyone has written down Perelman''s proof process diligently. Go back and take a look. In any case, they all witnessed history at least once today. Its not a loss. However, at this time. ?Perelman turned around and picked up the blackboard eraser from the table next to him. Then, I returned to the blackboard. Everyone in the audience suddenly felt an ominous premonition. ?Sure enough, Perelman took a deep breath. Then. Erase what you have already written. The demonstration I just gave is a wrong example. ?Chang Haonan truly realized for the first time that "a gasp" really made a sound. He suddenly felt a little sorry for the hundreds of listeners today. Of course, this does not mean that this proof itself is wrong. ?Perelmans next words finally calmed down the audience, whose hearts were about to stop beating. Its just that after I sent this conclusion to Professor Chang, he showed me a more subtle solution. (End of this chapter) Chapter 820 The key to Poincarés conjecture Chapter 820 The key to Poincars conjecture ?Perelman didnt simply rewrite the steps Chang Haonan originally sent him For a mathematician of his level, doing such a thing is somewhat demeaning. But based on that proof method, some optimizations have been made. In order to further reflect the beauty of this proof, we first introduce a concept: -length Do you still remember this? While Perelman was writing equations on the blackboard, a young teacher looked at the blackboard that had just been wiped clean and the notebook in front of him with several densely written pages. He shook his sore wrist and said, He asked in a low voice to his girlfriend next to him. ??He is not a researcher in the direction of differential geometry. He just became a ruthless note-copying tool, and now... I really cant write anymore. Of course you have to memorize it. You see even Professor Chang is lowering his head to memorize it. Are you better than him? ?Several people nearby who heard this sentence instantly cast their gazes into the distance... ??Sure enough, Chang Haonan, who had just been sitting and listening, now took out a notebook from nowhere and was writing and drawing in it. There was another gasping sound. Then there was a sound of turning pages. Finally, there is the rustling sound when paper and pen are rubbed... However, if someone who is relatively close to Chang Haonan takes a look, they will find that what Chang Haonan actually wrote on the paper is not what is on the blackboard. Instead, I drew a ball with a pencil. This is an extremely rare situation. Because for research in the field of differential geometry, high-dimensional spaces are often easier than low-dimensional spaces. ?Take the Poincar conjecture as an example. The Poincar conjecture in five-dimensional or even four-dimensional space has actually been proven long ago. ??However, the barrier of three-dimensional space has never been overcome. It is well known. On paper, it is impossible to draw a high-dimensional space. You can only rely on imagination or calculation. In fact, even what Perelman is talking about on the blackboard at this moment is mainly based on four-dimensional space. However, the content he optimized on the blackboard pointed out a new possibility to Chang Haonan... If this is a free isometric quotient space generated by finite group action, then it seems to be diffeomorphic to a three-dimensional compact manifold... Chang Haonans ears have gradually lost hearing Perelmans voice: It seems that this conclusion cannot be drawn directly. He frowned slightly: But if a restriction is added...to make the Ricci curvature of this manifold non-negative..." Off the stage, Chang Haonan was lowering his head, immersed in his own thoughts. On the stage, Perelman was giving his lecture as usual. According to the plan, after comparing the three types of singular models, he will be able to derive the same conclusion as just now. ?After using up one blackboard again, Perelman walked to the next one as usual. But this time, he didnt start writing immediately. Instead, he raised his hand and wiped the sweat from his forehead. He has been speaking continuously on the stage for nearly two hours. The energy and physical strength are indeed a bit behind. In fact, the idea on the blackboard was even thought of by him on the plane to China. He used it as the content of the lecture with the intention of introducing it and verifying it at the same time. So, it takes a lot more effort than a simple lecture. Fortunately, the staff nearby had already prepared and took this opportunity to quickly put a glass of warm water on the small table If you are a Chinese scholar, you will usually serve hot tea directly at this stage. However, considering that foreigners may not adapt to this step and may get burned, the temperature was lowered under Tang Lintian''s special care. Perelman was not polite. He came to the table and picked up the teacup. While drinking water, he looked at the first two blackboards that were already filled with his writing. Suddenly, the movements of his hands stopped. ?His eyes focused on the bottom of the first blackboard. Since this was the first time that this method was systematically sorted out, there were some details that even Perelman himself failed to notice at the first time. There is an inequality. R(-v)[lg(-v)+lg(1+t)-3] Originally, he just used it as a common estimate generated during the derivation process, but looking back now, it seems that some very interesting conclusions can be obtained along this direction... For example, when the curvature tends to infinity at all times, the smallest negative cross-sectional curvature is smaller than the largest positive cross-sectional curvature. In other words, the three-dimensional limit solution must have a nonnegative curvature operator. Thats right, three dimensions. Perelman didnt even have time to put down his tea cup before he turned to look at Chang Haonan sitting in the audience. ??I found that the latter was concentrating on writing something with his head down. At this time, Chang Haonan finally proved his conjecture on paper. He raised his head. ?The eyes suddenly met with Perelman''s. Although the two of them did not say a word, they both saw one thing from their eyes - the other person and themselves were thinking about the same thing. Two top scholars in the field of differential geometry finally reached the same conclusion through relatively independent thinking. That basically eliminates the possibility that this conclusion is wrong. In other words, it is feasible to perform surgery on Ricci flow in three-dimensional space. For the differential geometers of this millennium, there is a consensus. ??To solve the Poincar conjecture problem in three-dimensional space, the geometric method using Ricci flow is more feasible than the direct topological method. therefore. This is probably a key. A key to Poincars conjecture. ?Of course, even if you do open the door with this key, there is still some work to be done. For example, it is necessary to ensure that the appropriate neck area can be found for truncation surgery within a limited number of operations. ??It is also necessary to solve the problem that the general initial metric causes the Ricci flow to produce singular points. but. ?These are all details. It can even be said that it is a problem that can definitely be solved by just spending time. If we say that Chang''s Lemma is only the first step in a long journey for Poincar''s conjecture. ?So todays conclusion Perhaps it can be called the three-dimensional manifold theorem, or more simply, the Perelman-Constant theorem, which can be regarded as "a man who travels a hundred miles is half a mile". ?Of course, neither Perelman nor Chang Haonan would agree to use the combination of the two people''s last names in this place. Because if we continue in this direction, the two people''s surnames will most likely be directly named after "Poincar". At the same time, other listeners below were also taking advantage of this rare buffer period to review the contents of the notes they had just written down. Of course, these people were not involved in the initial derivation of the process on the blackboard, so their mindset dictated that they would definitely think along the steps Perelman wrote on the blackboard without seeing that, at least in It will not be obvious for a short time that one of these humble inequalities will have a historic impact on the entire mathematical world. ?However, most of them are professional mathematicians after all, so it is not possible to gain nothing... I seem to understand ?Tian Gang was the first to raise his eyebrows. ?Although Perelman has not finished writing the entire derivation process at this time, he has already thought of the remaining steps. Compared to the first solution which is a headache, the one currently written on the blackboard is obviously much simpler and easier to understand. It is indeed...an extremely exquisite proof...so that the local injective radius of the compact manifold can be directly calculated..." Its called the non-local collapse theorem and its very accurate His whisper to himself attracted the attention of several people next to him. Soon, Tian Gangs notes were circulated. ?Perelman, on the stage, still stood there with his hands folded, looking at the blackboard in front of him, without speaking. ??The lecture hall that had just been quiet gradually began to hear some whispers. "As expected of Professor Tian... he can get the results faster than me who was the first to do it." A scholar looked at the notebook in front of him, then raised his head to check the half-written content on the blackboard. Where Ive been standing there for two hours, and Ive already pushed halfway through. Its just because of my energy that Ive taken advantage ?Tian Gang waved his hand. ?Having said that, he was still relatively happy - ??Although the result definitely belongs to Perelman, and perhaps Chang Haonan who was just mentioned by the other party, the fact that I can derive it by myself before reading the proof process at least shows that I have not fallen too far behind in terms of ability... ?Of course, he doesnt know yet at this time. Perelman stopped because he saw a path leading to a higher mountain. Compared with these things on the blackboard now, they are not worth mentioning at all... Please give me a few pieces of paper, thank you. After a few minutes of silence, Perelmans first words were not to continue introducing his ideas, but to ask for paper and pen from the floor manager. "Um?" Why do you need these all of a sudden... Is there something wrong with the derivation process? "No way... I just vaguely heard that the previous teachers have already followed this idea, and I understand it and it feels pretty smooth..." Is it possible that even we can understand it, but it is more likely that something is wrong? Dont ?Strange behavior made the scene agitated again. ?But Perelman ignored this. He took the paper and pen, sat in front of the temporary desk, lowered his head and started his calculations... (End of this chapter) Chapter 821 The problem has been solved before it even started? Chapter 821 The problem has been solved before it even started? Finally, after working alone for nearly half an hour, Perelman stood up again out of the professionalism of a scholar and finished speaking on the blackboard. ?However, anyone can see it. In this last paragraph, he was already quite absent-minded. Obviously, what you just wrote on paper is extremely important. So much that it distracted most of his attention. Fortunately, this method of proof is quite easy to understand and did not cause any other setbacks. This report meeting was overall a success. Especially for Tang Lintian. Although he didnt fully understand. But a new theorem was first disclosed at the little-known Beijing Hang University lecture conference. This incident itself is full of legend. He has even begun to think about how to do a wave of publicity. ?Tang Lintian himself does not understand theoretical mathematics, and most of the experts present just now came from other schools. ??The envious looks from a dozen colleagues really made him feel good, but when he really wanted to find someone of his own to help him with things, it was a bit troublesome. Therefore, immediately after the report meeting, Tang Lintian showed a flexibility that was completely unbecoming of a middle-aged man in his fifties. Like a slow arrow leaving the string, he rushed out of his seat, preparing to stop Zhenghe Pei. Lehrman left Chang Haonan side by side. Professor Chang! ?Hurrying quickly and slowly, we finally stopped the other party at the door of the auditorium. Chang Haonan turned around and saw Tang Lintian breathing heavily behind him. Only then did he realize that he had been too lost in thought and seemed to have left without saying hello. Its really inappropriate. Professor Chang, I... ??Tang Lintian wanted Chang Haonan to help write a draft before he could say it, but was interrupted by the latter. Principal Tang, Im sorry, but Professor Perelman and I will not attend tonights reception banquet. Regarding Chang Haonan''s request, Tang Lintian basically agreed first and then thought about it, so he nodded almost without thinking: "good" Then I realized what I had promised to do that was so outrageous ?Hello guys, I have invited all the schools in the country that have top-notch mathematics departments. ?? People come from as close as outside the Fourth Ring Road and as far away as from Hunan and Min provinces. They cant come here just to see my old face, right? ??As a result, you two VVVIPs cant come together? ??Tang Lintian was numb, and the expression on his face that was full of joy a second ago suddenly froze. "Wait a moment" "How" Didnt I just... ??He has begun to reflect on whether he did not provide good hospitality, which caused Perelman, a boss who is said to have an eccentric personality, to have opinions. Chang Haonans mind was focused on the idea just now, and he didnt have the energy to explain too much. He just waved his hand: Several other people from the Steklov Institute of Mathematics will still attend the dinner. As for the two of us ?He glanced at Perelman, who was bowing his head in contemplation, and showed a mysterious smile: We are preparing to reveal how the world works. Solving a complex mathematical problem often takes months or even years. But most of the time is actually spent on calculation. In the past, we relied on pen and paper, but now we can certainly rely on supercomputing. However, the reason why mathematics cannot be equated with arithmetic is because there are still some really critical steps that cannot be solved by calculation alone. Need to rely on inspiration. Now, Chang Haonan and Perelman have undoubtedly caught the tail of inspiration. ???Of course its impossible to waste time for a mere dinner party. ?Tang Lintian was stunned. ?At first glance, this word seems to be boundless. ??If it came from another person, he would definitely think that he was making a fool of himself. But Chang Haonan ?In Tang Lintians impression, the other party never seemed to exaggerate his research Even in the proposal reports that generally require value sublimation, this has not been done before. ?Of course, Chang Haonans proposal report will also be valuable. But the problem is that the value of others is just casual. And his value can really be realized... ?Thinking of this, Tang Lintian took a deep breath and nodded. "good." ??The lights in Chang Haonan''s office stayed on like this all night. ?Perelman''s absence from the dinner that day also triggered a series of speculations. ??Although Beijing Airlines publicly stated that the professor was unwell and was unable to attend, the rumors will not care what explanation you give. Almost that night, rumors spread that "Professor Perelman was dissatisfied with the exaggerated atmosphere of Chinese academic circles and angrily refused to attend the dinner." What happened next surprised almost everyone The next day, the visiting team from the Steklov Institute of Mathematics ended their trip early and returned to Moscow! ?At this time, in the eyes of the ignorant people, and even some people who participated in the report meeting and banquet that day, it was simply a real deal. For a time, the media who caught the gossip clues pounced on the news like sharks smelling blood. After sending Perelman and his team away and dealing with a group of media who couldn''t get rid of him, Tang Lincai went to the computer room of the computing center and found Chang Haonan. The sparks generated by the collision of ideas in one night are enough to set the entire mathematical world on fire. The parts that need inspiration are almost there. Only some complicated but relatively low-tech jobs remain. What Chang Haonan is doing at this time is to import the calculation program into the supercomputer The method he and Perelman finally decided on was to use surgical Ricci flow. This process is quite special. It requires first cutting off a "neck" area in the manifold and then "gluing" it to the "top". Thereby expanding the solution interval. The key to the problem is to find a suitable set of "necks" and "tops" and choose the correct canonical neighborhood radius. This process can of course also be done using pen and paper. But for mathematicians who are about to enter the 21st century. You can, but its not necessary. The computer can do all the work for you. ?Especially for Chang Haonan who is not ready to devote all his energy to this, it is the best way to "be lazy". My Professor Chang, you have given me more strength this time... ??Tang Lintian sat down on the chair opposite Chang Haonan. Probably because he was anxious to get angry, and the computer room was relatively hot, his face turned red as if he had just been drunk, so he took off his cotton hat and used his ear protection as a fan to fan himself: "The leaders of several brother universities have called me to ask me what''s going on. China Youth Daily had made an appointment to write a special report on this matter, but it turned out that you two disappeared last night. This morning, they The leaders also came over to ask questions and said that even the page had been reserved..." After pouring out his bitterness, Tang Lintian turned his head and glanced secretly at the opposite side. It turned out that Chang Haonan had a hard-hearted look and did not react at all to his complaints. ?Failing miserably, he had no choice but to cough twice, take off his cotton-padded clothes, and then sit up straight: Professor Chang, to be honest, although I can still resist the pressure this time, but you can at least reveal what you are holding back this time, so I have something to think about, right? ? After hearing what he said, Chang Haonan finally raised his head and breathed a sigh of relief: There are two things. First, I plan to use the three-dimensional sphere theorem deduced yesterday to optimize the previously developed manifold learning algorithm and extend the application scope of the algorithm from high-dimensional space to three dimensions and below. "Well" ??Tang Lintian stopped moving his hands, and his face showed a bit of confusion: Can youexplain? ??He is also a well-known expert in the aviation field, but at this time he feels as if he has never gone to school. ??Although he knew every word the other person said, he didn''t understand it when put together. It means that the data obtained in the three-dimensional space can be further reduced in dimensionality and then handed over to the computer for processing. Chang Haonan was already busy with important things at this time, so he explained patiently: Specifically, Professor Mengs hyperspectral remote sensing data feature extraction project can basically be concluded. "ah?" ?Tang Lintian was shocked: End...end the question? After being stunned for a few seconds, he continued: But that project has just been applied for, and it hasnt even been officially launched yet? Completing the project before starting the project is absolutely unprecedented, and Im afraid it will be difficult to do it again. Of course, this refers to other comers. ) ?Chang Haonan raised his hand to straighten his somewhat messy hair: The main reason is that I suddenly got the inspiration yesterday. I never expected it to happen so quickly. Fortunately, Tang Lintian was used to Chang Haonan''s unfavorable operation, and he quickly convinced himself to calm down. Then now He pointed to the computer room next door where the fan was roaring: Are you testing the algorithm you just mentioned? Speaking of this, Tang Lintian suddenly reacted: No, this matter has nothing to do with Perelman, right? Ohthese are the second things. Chang Haonan leaned back on the chair, waved his hands gently, and said casually: We are trying...no, we are trying to conquer the Poincar conjecture. ??The hat in Tang Lintian''s hand fell to the ground. (End of this chapter) Chapter 822 Test with early warning aircraft Chapter 822 Testing with an early warning aircraft ?In the next half hour or so, Tang Lintian felt dizzy. Floating. The feet are off the ground. ?Given the level of Mathematics major at Beijing Hang University, being able to invite a scholar of Perelmans level to give a report is already something worthy of celebration. In the end, Chang Haonan turned around and gave him such a big job. Its basically equivalent to a person worrying about having enough to eat one second, and then suddenly learning that he is the son of the worlds richest man the next second. ?This description is no exaggeration. ?In the current situation, if Chang Haonan is willing, Tang Lintian probably won''t care about trivial issues such as seniority... In short, when the latter woke up again, he found himself in Chang Haonan''s office. I dont remember what happened in the middle at all. Professor Chang. ??When Tang Lintian was speaking, he still felt his heart beating very hard, so he slowed down a little in the middle of speaking: "This result...about...when..." As a man in his fifties, he has deeply felt the mark left by the passage of time on his body. ?But at this moment, if there could be a fast-forward button in life, Tang Lintian would press it without hesitation. I really cant wait ?Poincars conjecture Even if he is not a mathematics professor, he still knows this famous name. ?It is as famous as Goldbach''s conjecture and Fermat''s last theorem, a problem that has troubled mathematicians around the world for more than a century (actually the Poincar conjecture is of higher significance, but those two are really out of the circle). ??If it is solved on Beijing Airlines... Dont say anything else. ??The lecture theater where the lecture meeting was held yesterday can be directly promoted to a sacred place of mathematics Dont ask, just ask. The inspiration for solving the Poincar conjecture came from this place. As the current principal of Jinghang University, Tang Lintian is definitely honored. Its hard to say. Chang Haonan shook his head and replied: In mathematics, the most time-consuming part is often not necessarily the most difficult part. He understands Tang Lintian''s mood, but since the current theoretical level of LV3 is not enough to start the project, the Poincar conjecture has not been solved directly through the system, so it is difficult to give a clear timetable. All we can say is that in terms of supercomputing performance at the turn of the century, his own expectation was 3-4 months. Yes, also... ??Although he didnt hear the answer he wanted, Tang Lintian still nodded repeatedly: It will definitely not be simple to study a problem that has not been solved for a century... ?After this topic came to an end, the office fell into silence again. Tang Lintian, who was still not overly excited, was still a little unable to sit still, but in front of Chang Haonan, he couldn''t jump up and down to vent. ?So after sitting uneasily for a few minutes, he finally lost his temper and stood up: Ill go find Professor Meng and talk about your project. ?Chang Haonan was just about to say that it was just a phone call, why bother making a special trip. ??As a result, when I looked up, I saw Tang Lintians back almost jumping out of the door... "well" He sighed, put down the hand he was about to pick up the phone receiver, and shook his head with a smile. ?About 40 minutes later, Tang Lintian, who seemed to have returned to normal, finally returned to Chang Haonan''s office with Meng Zhenyuan. ??And after hearing that Chang Haonan had found a solution to his problem, Meng Zhenyuan''s reaction... ??Its basically not much different from Tang Lintian just now. ?This time, Chang Haonan, who had gained experience, did not disturb the two people opposite him, and just kept busy with the matter at hand. Sure enough, after a while, Meng Zhenyuan finally came back to his senses. "No, Mr. Chang, this...is it true?" Chang Haonan was immediately amused: "Of course." He looked away from the computer screen and looked at the two people sitting on the sofa: Can I still lie to you? No, no, noof course I believe Professor Chang ?Meng Zhenyuan rubbed his hands. Obviously, although he has recovered from the initial shock, his language and thinking abilities have still suffered some impacts: Oh my God ?Meng Zhenyuan sighed again, then looked at Chang Haonan and said sincerely: Mr. Chang, since you have solved this problem, do you think...are there any equipment or equipment that need to be purchased? I can use the funds from this project to help you solve it! ?This is indeed a minor trouble ??The project in Meng Zhenyuan''s hands is a vertical project, and the management of funds is much stricter than that of horizontal projects. ?At least it is impossible to be like the agreement signed by Chang Haonan and the China Petroleum Pipeline Bureau. If the project is completed ahead of schedule, the funds will be paid in one line at the end of the project in the name of personnel expense subsidies. For vertical projects, if the funds you apply for are not used up, not only will you not get an award, you may even be rejected. The logic is also very simple - why did you apply for so much if you can''t spend it all? ?But even so, when applying for a project, no one will really think about how to spend the money first, and then get the money according to the planned amount. But we must get as much funding as possible and then find a place to spend it. So, at the end of each year, and when the project is about to be completed, there will be a sudden expenditure of money Of course, this is definitely a happy trouble. For most research groups, the trouble is not enough money, rather than not being able to spend it all... ?However, the problems Meng Zhenyuan is facing now clearly exceed all past experiences. ??Its not that he has some money left over and needs to be spent, but hes about to finish the question without spending even a penny. Hmmhow many? Chang Haonan was not polite, after all, he was the one who solved the problem. Three years, 200,000 per year. ?Meng Zhenyuan replied. That doesnt seem to be enough to do anything ?Chang Haonan held his forehead with one hand. In fact, a project with a funding of 600,000 yuan was definitely considered a big project in 2000. Its just There is no harm without comparison. Finally, he decided to skip the topic: Forget it, lets keep it for now. Anyway, the completion of the question will have to wait until the end of this year at the earliest. I will contact you when I have any money that needs to be spent. The issue of funding can only be regarded as a digression. The focus is still on the project itself. Next, Chang Haonan spent about two hours introducing his improved manifold learning algorithm to Meng Zhenyuan and Tang Lintian, as well as the idea of ??using this algorithm to extract and analyze multi-band spectral data. To put it simply, in an era when sensors are highly developed, the problem people face is not too little data but too much data. So much so that its impossible to tell which ones are useful and which ones are useless. Manifold learning technology can accurately extract the specific data needed for analysis from a radar imaging map filled with information in trillions or even gigabytes. ?Of course, this is just one of many application scenarios. ??If the computer performance is strong, advanced functions such as face recognition and image search can also be implemented. Sounds very...perfect. After Chang Haonans introduction, Meng Zhenyuan felt that he was almost convinced by this exquisite method: However, there is still a problem... Our satellite will not be launched for more than a month...Although I also think this idea is feasible, it still needs to be tested..." In the final analysis, the formers movement was a bit too fast. Hmm indeed. Chang Haonan nodded: It may take three months for the satellite to transmit the data back, and if the geological information needs to be verified, we have to wait for the results of on-site exploration to come out, which is really inefficient..." He believed that the algorithm he developed would be correct. However, in order to optimize a good enough effect, enough samples are still needed for comparison and parameter adjustment. ?With one satellite, Ziyu-201, and dozens of people from the Exploration and Development Research Institute, it may be difficult to meet the efficiency requirements. Anyway, as long as its telemetry data, how about letting the two Learjet Ss from the Academy of Sciences join in? Tang Lintian next to him suggested. In the mid-1980s, China imported two Learjet S/II electronic reconnaissance aircraft from the United States, which were later named under the name of the Academy of Sciences. In addition to military use, it will also perform some scientific surveying and mapping tasks. Chang Haonan waved his hand: The shortcoming of this area is the inefficiency of on-site survey, even if there are two more aircraft..." At this point, his eyes suddenly lit up. At the end of the day, the function of the manifold learning algorithm is feature extraction. Then you dont have to limit your attention to geological information. Ground reconnaissance, battlefield surveillance, target identification It is also true. ? And because targets such as buildings and vehicles are controllable, it can even save the effort of data verification. At this moment, an excellent test platform suddenly flashed in his mind The Air Police 200 has already made its first flight. ??Although the centimeter-wave radar has limited accuracy when detecting the ground and cannot be compared with serious synthetic aperture radar, considering the huge antenna area and power, if it is only used for technical verification, it should not be a big problem. Moreover, it kills two birds with one stone. In addition to verifying hyperspectral remote sensing equipment, we are also making technical preparations for China''s future battlefield command aircraft, comprehensive reconnaissance aircraft, or strategic reconnaissance satellites! (End of this chapter) Chapter 823 Aviation equipment test base Chapter 823 Aviation Equipment Test Base ?After sending Tang Lintian and Meng Zhenyuan away, Chang Haonan immediately contacted Ding Gaoheng and told him his idea of ??"borrowing" Air Police 200 for target feature recognition and screening experiments. The latter was silent for a while after listening: Xiao Chang, have you forgotten that you are still the deputy chief engineer of the Air Police 200 Project? With one sentence, there was an eerie silence on both sides of the phone. ?Chang Haonan scratched his head. It is true that I forgot. After all, the scope of the deputy chief designer''s position depends entirely on the specific work he is responsible for, and there is a huge gap between the upper and lower limits. And Chang Haonan happens to be the kind of person who is not responsible for any specific work At the beginning, what I said was to help solve some difficult problems. But the entire Air Police 200 project highlights one logical and most troublesome part, namely the overall design and flight safety, which were overcome by Chang Haonan even after the project was approved. So we didnt encounter any difficult problems at all. Naturally, it was not his turn as the deputy chief engineer to play any role. Havent even signed a word. Coming back and forth, and being so busy in the past few years, I have long forgotten about it... And its not just him. ??Probably few people except Ding Gaoheng still remember it. Otherwise, there should have been at least a few more procedures when he took up the post at the Aerospace Power Group. ?However, now that this level of identity is in place, the matter has changed from "parallel cooperation between two military-industrial groups under the Science and Technology Commission system" to an internal matter of the project. ?As long as the two chief engineers Liang Shaoxiu and Wang Xiaomo agree. Considering the working relationship between Chang Haonan and them, and it does not involve any hardware modification... Basically just say hello. It can save a lot of trouble. "Then...I''ll contact Liang Gong and Mr. Wang directly." After finishing speaking, Chang Haonan was a little embarrassed and prepared to hang up the phone. Dante Gaoheng still has something to say: By the way, Xiao Chang. He stopped Chang Haonans attempt to hang up the phone: After I went to work today, I heard that there seems to be another wave of public opinion in your school? ?Beijing Hang University is a university affiliated to the Science and Technology Commission. In terms of terms of reference, Ding Gaoheng can naturally manage it. It''s just that he paid special attention to such trivial matters today simply because he was worried about having anything to do with Chang Haonan. Ah...its not a big deal. Chang Haonan replied in a relaxed tone: Yesterday, a foreign mathematician came to visit. After the two of us talked about academic issues all night, we got some inspiration, so we went back early today to continue our research. Outsiders dont know the ins and outs of things, and its normal for them to make wild guesses about some unreliable content. ??Although Ding Gaoheng has been in a high position for many years, he is not out of touch with the masses. At least he is very clear about the ethics of the media. ?So after hearing Chang Haonans explanation, he also guessed what was going on: "That''s good. As for public opinion matters, you let Tang Lintian handle it. You can come up with ideas from behind, but except for interviews arranged by the organization, don''t express your position directly." ?Although the formers performance in this regard has been very reassuring in the past, Ding Gaoheng still specifically gave instructions. After finishing speaking, he seemed still a little worried: Forget it, I will hold a special meeting for several universities under the Science and Technology Commission system later to formulate a method to deal with sudden public opinions..." After hanging up the phone, Chang Haonan immediately prepared to contact Liang Shaoxiu and Wang Xiaomo. ?However, when he was about to dial the number, he realized that as the deputy chief engineer of the Air Police 200 project, he did not know where the two chief engineers were now. The office is definitely a no-brainer. ?Its almost dinner time now, and the nature of their work means they cant sit in the office even if they work overtime. As for mobile phones The last time the three of them met was almost two years ago. ?At that time, only Chang Haonan, who was relatively wealthy, bought one. So he doesnt know the mobile phone numbers of the other two people either "well" He shook his head with a somewhat self-deprecating smile: I, the deputy chief engineer, serve as a... pure negative teaching material... ?In the end, there was really no other way, so I contacted the Aviation Industry Group step by step and learned that the two of them were now in Liao Province doing basic performance testing of the Air Police 200. Three days later. Liao Province, Xingcheng Base. ?This used to be a station belonging to the Naval Flying Academy, but the frequency of use was very low. Only occasionally a J-H 7 regiment came to station for training. Considering the relatively remote geographical environment and the location advantage of being close to the Bohai Bay, after Wu Yifan returned the information about the Nitka aircraft carrier training base to China, it was selected as the future Chinese carrier aviation training base. Later I felt that it would be a waste to just put an aircraft carrier training facility in such a large area. So it was simply planned to become an exclusive aviation equipment test area for Hainan Airlines. Its a bit like Area 51. ?Of course, although no one said it clearly, it must be somewhat similar to the Air Force Reform Base. Hence, the Air Police 200, as an early warning aircraft funded by the Navy, became the first model to enjoy the high-standard treatment here. Mr. Chang, we havent seen each other for a while. As soon as Chang Haonan walked out of the cabin of Challenger 601, Wang Xiaomo and Liang Shaoxiu came to the gangway and shook hands with him respectively: I thought you had forgotten your title as deputy chief engineer ??As the person in charge of the Air Police 200 project, Wang Xiaomo certainly remembered that he also had a deputy chief engineer who had barely appeared. "I" Chang Haonan thought to himself that this article should be revealed as soon as possible, and at the same time quietly changed the subject: Yeah, long time no see. After speaking, he tightened his coat to resist the **** sea wind around him: Im ashamed. As the deputy chief engineer, I have only done some minor work. Now I have a project at hand, and I have to trouble you... Hey, dont say that. It was you who came up with the overall design of this early warning aircraft. ?Wang Xiaomo slowed down slightly and replied: If you hadnt come up with this T-shaped antenna solution, we would probably have just used a balance beam solution like the Saab 2000 ?At this time, Liang Shaoxiu, who had been silent just now, was also nodding beside him: "And what''s more important is the platform itself. A while ago, before we arrived in Liao Province, a test flight in southern Shaanxi encountered severe icing weather. Fortunately, the de-icing system worked in time, otherwise it would have been really bad. Something might happen." There was a little fear in his tone. While talking, Chang Haonan and his party walked into the large hangar where Air Police 200 was parked in the distance Since the main equipment for a long time has been first- and second-generation fighter jets, the Chinese aviation force has never paid enough attention to aircraft ground protection in the past. After all, there is really nothing to coddle with something like the J-6 and J-7. As for what to do in rainy and snowy weather... Sorry, these aircraft are not designed to operate in bad weather. No need to take off But as the third-generation fighter jets and a batch of special aircraft are successively equipped and tested, it will definitely not be possible to continue to be so rough. This large-scale constant-temperature hangar is the first attempt of naval aviation. As soon as he entered the building, what attracted Chang Haonans attention the most was not even the early warning aircraft carrying a towering antenna. Rather, it is a large half-circle of control consoles around the hangar. It doesnt feel like youve entered a hangar, but rather like a workshop ?Perhaps noticing Chang Haonans eyes wandering around, Wang Xiaomo introduced with a smile: This hangar is very powerful. The Navy specifically considered the convenience of technical verification work and spent a lot of money to install a lot of maintenance and auxiliary equipment. Some minor parts replacements and software upgrades can be carried out here after being shipped over, without having to fly the aircraft back to the factory. Good guy Chang Haonan had seen a similar fully functional hangar before his rebirth, but seeing such a thing in 2000 still made him marvel: That is indeed very convenient. ?Chang Haonan nodded with satisfaction. He originally thought that the plane would have to return to Nanzheng to complete the upgrades he needed. But now it seems that a round of trouble can be avoided. Thats why we moved the plane from Yanliang to this side in advance. Wang Xiaomo said as he opened the cabin door and took the other two people into the interior of the cabin, which was already filled with a row of display consoles: On the one hand, it is to test the adaptability of the aircraft in the coastal environment, and on the other hand, it is also to test the working effect of the radar. As an incompetent deputy chief engineer, it was actually the first time for Chang Haonan to enter this aircraft, or the first time to enter the interior of an early warning aircraft. So it still feels a bit fresh. Wang Xiaomo has long been used to seeing what it looks like when someone gets on an early warning aircraft for the first time, so he very skillfully gave Chang Haonan a brief introduction to the specific functions of each piece of equipment. Chang Haonan sat next to him and listened quietly. It wasnt until the former talked about the core multi-functional radar display that he interrupted him: Mr. Wang, lets talk about radar. Chang Haonan pointed to the top of his head: Can our antenna array be made larger? ?? He remembered that when he first talked to Wang Xiaomo about the domestic early warning aircraft, the other party seemed to have said that the size of the antenna was about 8 meters * 0.6 meters. As far as the size of the Yun8 platform is concerned, it is certainly large enough. But if you want to use the Tu 214 or the domestically produced C909 as the platform, it may be able to accommodate a larger one. (End of this chapter) Chapter 824 One of the anti-aircraft carrier technologies (new January, please vote for me) Chapter 824: Anti-aircraft carrier technology...1 (New January, please vote for me) "Can." ?Wang Xiaomo replied decisively: "I should have mentioned to you before that the 14th Institute was developing a carrier-based phased array radar a few years ago. The array size was 4 meters * 4 meters. At that time, it was limited by the structural processing and electromechanical requirements of the large-size box. The coupling issue has never been resolved. Chang Haonan certainly knew that the radar the other party was talking about was Type 346. The two of them talked about each other when they first met. Thats right. He nodded: "I remember that after the release of TORC Multiphysics software, when our Torch Group first started to take over the computing business, I specifically asked the comrades in charge of this area, saying that if there were project requests from the 14th Institute of Electrical Engineering, they could be implemented first, but then it seemed Never received it. Because the 14th institute later organized a research team, and even sent people to study with you, and finally solved the problem of front design. Wang Xiaomo explained: "Now the first prototype of the 346 phased array radar has been installed on the Bi Sheng and is being tested. No structural problems have been found so far, which shows that we can still handle the 16 square meter array. " Currently, the yield rate of gallium arsenide in our second-generation T/R components cannot be improved, so the second array has been built intermittently for more than a year, and it is estimated that it will not be completed until the second half of this year. He has mentioned before that if stable import channels can be found or domestic production can be achieved, then 14 institutes hope to use gallium arsenide-bipolar silicon hybrid components on the 346 radar. It now seems that localization has been achieved, but not fully achieved. ?But there is no need to rush this matter. As long as there are continuous orders, production technology updates and iterations are a natural process. It''s like building a phased array antenna array. When planning the Air Police 200 a few years ago, Wang Xiaomo also said that it needed to be made by workers using milling cutters. ? As a result, not long after, the Torch-C.B. Ferrari Group was established, and the first product launched, MS45T, solved the urgent need. ??When Chang Haonan looked at the financial statements at the end of last year, he found that Dianke Group had quietly purchased nearly three-digit purchases... As for the second four-axis linkage model, Dianke is also the first launch user. It is basically a strategic partnership. After chatting for a while about Air Police 200, Chang Haonan saw that the atmosphere was about the same, so he told the other two about the specific tasks of his trip. Actually, I just wanted to ask. As a radar expert, Wang Xiaomo is obviously also very interested in this topic: "The radar target recognition you are talking about...should not be as simple as distinguishing between ourselves and the enemy, right?" "Of course." Chang Haonan said as he took out the prepared information from his briefcase and handed it over: Actually, its not just radar. My phased goal is to specifically determine the nature of the target by extracting and analyzing the signal characteristics captured by multiple sensors. For example, if a radar detects an echo with a speed of tens of kilometers per hour, is it a flock of birds or a low-speed flying helicopter? Or if a very blurry image is captured in the visible light band, is it possible that it is a house or a simple terrain color block? Or, the sonar detects a noise. Is it a creature, an ocean background, or a submarine? Wait a minute, wait a minute Hearing Chang Haonan talking further and further away, Wang Xiaomo quickly stretched out his hand to stop him. First of all, he was worried that if he continued to listen, Air Police 200 would change from Xiao Tiantian to Mrs. Niu in his heart. Secondly, he suddenly thought of a possibility. A magical possibility: If this is the case, is it possible to use radar to emit electromagnetic waves to image the target, and then use this to determine the target, such as the specific model of the aircraft, or whether the ground target is a tank or a truck? ?This is definitely a feature that aviation forces all over the world dream of. ?Although in theory, identification of friend or foe can be accomplished by IFF antenna or data link. But in actual operation, IFF has a short range due to its high power and frequency. ?Especially under abnormal weather conditions, to put it exaggeratedly, the range of action is not as good as the killing radius of some anti-aircraft missiles with larger warheads. And data link At least in 2000, even the US military cannot guarantee that all aircraft in the theater are effectively connected to LINK16. ? Even if a terminal is installed on the hardware, the data transmission bandwidth will explode. So, there is actually no particularly reliable way to determine whether a target is an enemy or a friend beyond visual distance. But if the technology provided by Chang Haonan can use airborne radar to distinguish the shape of the target. ?That would be different You see an F16, dont you know which side it is from? This idea made Chang Haonan''s eyes light up. Its just a pity. ?After thinking for a moment, he shook his head: At least not yet. "With the current technology, the resolution of centimeter wave and decimeter wave radar is really not enough. At most, it can tell whether the target is a car or a house. The accuracy of millimeter wave radar is enough, but the detection range is not enough. It is almost the same as the target. The visual acuity is almost the same. If synthetic aperture technology is used, the imaging time will be too long and high-speed targets cannot be detected..." "Um" Although his idea was rejected, Wang Xiaomo was not depressed. After all, Chang Haonan only said that it is not possible now, but did not say that it is not possible in principle. Indicates that the future is promising. At this time, an accompanying naval officer suddenly interjected: It sounds like...this technology is not suitable for dealing with vehicles or aircraft, but is suitable for searching for sea targets..." "It''s hard to say there is any big difference between a J-8 and an F16 in the eyes of radar, but an aircraft carrier and an oil tanker, or other large ships... Although the RCS may be similar, because of the existence of a straight deck , the difference in signal characteristics should be quite obvious..." ! ! ! Before he finished speaking, Chang Haonan, Wang Xiaomo and Liang Shaoxiu turned their heads almost at the same time and looked at the naval lieutenant colonel. The latter was looked at directly by the three people, and suddenly felt a little numb, and his momentum immediately weakened: Thats what, Ill just say it casually "No." ?Chang Haonan raised his hand: This is not a casual statement. This is not a casual statement. He and Wang Xiaomo said in unison. It''s just that the two people are thinking about different things at this time. Wang Xiaomo believes that this technology may be more suitable for use on anti-submarine/patrol aircraft, for tracking and monitoring enemy fleets at a safe distance, and for finding the signal characteristics of enclosures, snorkels or periscopes in complex sea areas. And Chang Haonans idea is Among the many rumors about the specific guidance methods of anti-ship ballistic missiles in previous generations, there seems to be a similar technical route. Even among anti-ship missiles many years ago, "picking the one with the largest RCS and hitting it" has become the first principle in the target search process. ?However, with the continuous development of low RCS technology on ships and the equipment of various radar reflection decoys, this simple and crude method has become somewhat outdated. Compared with missing targets, the more troublesome problem is that some civilian ships, such as fishing boats, although they may not be large in size, often have RCS that far exceeds the displacement standard due to their appearance, making it easy for anti-ship missiles to hit near the target. Even the melon-eating masses on the route. Ordinary anti-ship missiles that win by quantity are not bad. At most, if you hit a few more missiles, or if you originally intended to hit the aircraft carrier but ended up hitting the destroyer next to it, it would not be a loss. ??However, anti-ship ballistic missiles and even anti-ship hypersonic missiles, each of which is extremely expensive, obviously cannot withstand such consumption. So, a way is needed to distinguish high-value targets from the field of view. ??As the officer just said, straight-deck aircraft carriers and amphibious assault ships, as the two most valuable targets, happen to have very special signal characteristics... (End of this chapter) Chapter 825 Test, target feature extraction Chapter 825 Testing, target feature extraction ?Of course, using ballistic missiles to counter aircraft carriers is definitely not that simple. It can be solved by developing a target classification algorithm. First of all, the prerequisite for target classification is to detect the target. ??But how to enable ballistic missiles to overcome black obstacles and use radar normally during re-entry into the atmosphere is a huge problem... ? ? Reducing the reentry speed to less than 5 times the speed of sound can avoid the occurrence of black barriers from the source. However, low-speed ballistic targets are the easiest targets for the air defense system, which defeats the original purpose of using ballistic missiles to fight ships. ??If you wait until you have passed the black barrier area before turning on the radar, the reaction time will be too short and it will not be enough for the missile to adjust its attitude. Secondly, to find the location of the aircraft carrier battle group in the vast ocean before the strike, a complete global ocean monitoring system is needed. At this moment, China has just launched its first land-based remote sensing satellite. The second and third satellites are Ziyu-201 and 02 that will be launched soon ??This is also the original reason why Chang Haonan rushed out to conduct technical testing before the Spring Festival. As for ocean remote sensing satellites Sorry, not even one. In short, at least in 2000, we could only think about developing anti-ship ballistic missiles ?Most people wouldnt even dare to think about it. On the contrary, Wang Xiaomos idea is more realistic. ?In particular, Chang Haonan has previously considered designing an anti-submarine patrol aircraft based on the C808 platform that has a comfort level and a range that exceeds or is no less than that of the P3C. In the current context where the main tone of the confrontation is to fight without defeat, the importance of this equipment is not less important than conventional main battle equipment such as tactical aircraft, if not more important. ?Thinking of this, Chang Haonan immediately turned to look at Liang Shaoxiu, who was a little distracted from radar-related topics: Gong Liang, our Air Police 200 has not done any hardware shielding for low-altitude targets, right? Since the main function of early warning aircraft when developing is air detection, there are many models that directly limit the longitudinal depression angle of electromagnetic waves on the hardware, in order to solve the interference caused by ground echoes in the simplest and crudest way. Whats more, a shielding layer will be designed under the antenna to directly block the downward electromagnetic waves at large depression angles. ?Chang Haonan definitely didnt have this thing when he made the plan, but there is no guarantee that it will be added in the past two years. No, I just limited the downward angle in the radar background program Liang Shaoxiu replied: And because it is still a prototype, this restriction can be lifted through a special command. If you have a new target recognition program, Mr. Chang, just modify the software part here. Since pilots and ground crew are not professional aircraft designers, when the mass-produced aircraft is delivered to them, in order to prevent anyone from messing with it, the software programs are locked, leaving only some preset input and output ports. . However, prototypes or technical verification opportunities have a status similar to "developer mode", allowing engineers to make modifications more conveniently. Dont worry, there is no need to make major changes to the current procedures. ?Chang Haonan looked back at the staff who followed him. The latter understood immediately and took over a password box that he carried with him. After opening it, there are several hard drives inside. I have encapsulated the target feature extraction and analysis functions into a module, which can be plugged into the existing data processing code. Having said that, the operating computer on the early warning aircraft is not a home computer after all. Just make an installation file in .msi format and wait for it to be completed automatically. ??WindowsXP, which was widely used in military terminals in later generations, was still a trendy thing that could only be installed on the latest PCs. It has extremely high hardware requirements and is also unstable. Its almost the same as win11 in 2023. And it hasnt been officially released yet. So, it took Chang Haonan nearly a week to completely complete the program update and necessary ground testing. It even took longer than it took him to write the program before. ?Of course, Liang Shaoxiu and the others are not idle these days either. Instead, he helped coordinate with the naval leaders and borrowed a batch of false targets for training. Its not something fancy like a self-propelled decoy. Instead, it is a simple method to install different styles of models or corner reflectors on the buoys. Used to low-cost simulate targets of various sizes from sampans to destroyers in non-live-fire training. It is a method that the army had to endure during the early years and had no other options. The advantage is that it can be deployed using a transport boat or tugboat, and it can be recycled without damage after use. But later I found out that the effect was actually quite good. ?However, because it is a buoy, it cannot be deployed in places such as the high seas and oceans. It can only play a role in relatively shallow locations. The last day before New Years Eve. "Mr. Chang, comrades from the North Sea Fleet sent back a message saying that they have set up all the 35 preset false targets. In addition, the three warships 107, 110, and 519 that are training in the nearby waters will also cooperate with us. Real ship target, compared with the signal characteristics of the corner reflector. ?Liang Shaoxiu hung up the phone and said to Chang Haonan who was not far away. The latter was currently looking out of the floor-to-ceiling window of the tower, watching Air Police 200 drive from the apron onto the taxiway: Notify Unit 20001 to prepare for takeoff. ??If it makes sense, then Chang Haonan, as the deputy chief designer, Liang Shaoxiu should be regarded as his leader in the Air Police 200 project. ??Its just that the content of this test has no direct relationship with the early warning aircraft itself, and the two parties are closer to cooperation. The reason why it is carried out under the framework of Air Police 200 is simply for convenience. ?Moreover, Liang Shaoxiu has actually been learning from Chang Haonan since the time he solved the problem of ice on the wings of the Y-8 platform at the end of 1996. ?Like Lin Shikuan from Institute 601 back then, he was considered a half-disciple brought out by Chang Haonan. Hence the strange scene in front of us where the chief division reported the situation to the deputy chief division, and then the deputy chief division issued instructions to the chief division. A few minutes later, Air Marshal 200 rose into the sky from the end of the runway, dragging four lines of faint black smoke, and gradually disappeared from everyone''s sight. "Mr. Chang, Comrade Shaoxiu has complained to me a lot before, saying that the performance of the turboprop 6 is still a bit lagging behind..." Wang Xiaomo looked at the black wake that had not completely dissipated in mid-air, and said to Chang Haonan next to him: I heard that when your aviation power group was established last year, you mentioned a development plan for a turboprop engine? Obviously, this is implying...or indicating that we want a turboprop engine with better performance. In other words, a flying platform with better performance. ??If Liang Shaoxiu had said this, it would have been difficult to determine the balance between suggestions and dissatisfaction. But Wang Xiaomo has nothing to do with the aviation system, so he has no concerns in this regard. Indeed there is. Chang Haonan nodded: But the design power of that machine is only 1,600kw. It is planned to be used for 10-ton helicopters or 20-ton turboprops like the Y-7, which is not the same level. As for the 4,000kW-level turboprops...Im not talking about those imaginary ones. They really dont have a high priority at the moment. We actually have R&D capabilities here, but the number of technical personnel is still too small, and we cant take care of too many models at the same time. We can only work on the most urgently needed ones first When the Air Police 200 landed back, it was almost three hours later. ?According to Chang Haonan''s test requirements, the aircraft must conduct four rounds of searches for targets from different angles, that is, two zigzag routes that are generally perpendicular to each other. ??For the Air Police 200, which has a somewhat limited range, this is even the longest flight since the prototype''s first flight... ?While the ground crew rushed over to perform maintenance on the aircraft, the engineer on board had also taken down the recorded radar data and handed it to Chang Haonan. Hence, it is naturally impossible for supercomputing to be used here in Xingcheng Base. Fortunately, if you just want to check the results or simply adjust parameters, you can use an ordinary computer. ??But if the algorithm needs to be improved in the future, we will have to go back to the capital to do it again. We marked targets 1-39 in the order in which we first completed the search. ??The radar operator responsible for following the test flight is a naval lieutenant colonel named Su Changyun. At this time, he is sitting behind Chang Haonan and Wang Xiaomo, introducing the details of the flight just now: Originally, there were 35 false targets plus 3 ships, a total of 38, but we found an illegal fishing boat in the target waters, so there was one more. Then this fishing boat ended up... Although this matter had nothing to do with the test, Chang Haonan still couldn''t restrain his curiosity. We contacted the 110th Dalian Ship through the North Sea Fleet Command, and finally caught them and found out that they were a group of people stowaway. Okayits pretty good. Wang Xiaomo next to him showed a helpless smile: Being able to become the first combat result under the command of an early warning aircraft in the history of our country is, to a certain extent, recorded in the annals of history And it also provides us with the typical signal characteristics of a fishing boat. Chang Haonan added next to him: In the future, you can add it to the white list of anti-ship weapons, or at least set the aiming coefficient to the end to avoid accidental hits... ?Other people here naturally dont know about Xiongfeng 3s fishing boats, so they just assume that he is preparing for a rainy day. After a brief interlude, everyone returned their attention to the radar data. There are two sets of data in total, one is original and the other is processed by the recognition algorithm. In addition to being used for comparison, the difference between the two sets of data itself can also be used as a basis for judging the nature of the target - Since the radar display is not specially set, the result output to it is a dot. But in the background running log, the difference can be clearly seen. The most intuitive thing is that the latter has richer or clearer data levels than the former. Two targets 1 and 2, four directions, each with two sets of data. The first set was directly hidden in the sea clutter and was not seen. The second set was seen but very faint. It should be a simulated periscope..." "The RCS of numbers 3 to 16 are quite large, but it was revealed in the second set of data that they are completely different from the signal characteristics of the three targets 36, 37, and 38... Considering the difference in quantity, The dozen in front should be different large corner reflectors, and the last three should be the three real warships..." 17 and 18, there is almost no difference in the signal characteristics detected in the four directions. They should be small corner reflectors, used to simulate speed boats or patrol boats..." ?Every time Chang Haonan finished speaking, Su Changyun compared it with the "standard answer" sent by the fleet. In the end, except for the misjudgment of "reef" and "small boat", everything else was correct. ?For a first test, the results are pretty good After all, the radar and computer wont know what humans define as a target, its only responsible for finding the difference. As for the inductive analysis of signals with different characteristics, it needs to be calibrated slowly later. For example, the targets with characteristics A are large and medium-sized surface ships, the targets with characteristics B are ordinary bulk carriers, and the targets with characteristics C are container ships... In fact, this is the fundamental purpose of Chang Haonan running over for testing. Although the situation of early warning aircraft cannot be directly transferred to remote sensing satellites, the methods of feature extraction and selection of calibration anchor points are the same. Although its not perfect yet, it has great potential. After reading all the results, Wang Xiaomo came to a conclusion almost immediately: Especially in terms of decoy identification, it is almost accurate at a glance, but unfortunately the amount of storage and calculation required is too large, so it is not easy to put it on the radar of a fighter jet. Thats not necessarily the case. Chang Haonan was already adjusting parameters and calibration methods, but he still stopped what he was doing after hearing what the other party said: The main function of fighter radar is air search. The background is relatively clean and the target features are more monotonous. I can write a simplified version for use by 1473 and 1493 series radars..." ! ?Wang Xiaomo just said it casually, but he didn''t expect Chang Haonan to actually come up with a feasible plan. He stood up suddenly: Then Ill contact the 14th institute. It just so happens that these types of radars, oh, and 346, havent been finalized yet. We can take this opportunity to work together... (End of this chapter) Chapter 826 Measuring China Chapter 826 Measuring China ?Just like that, a month went round and round and passed quickly. This year''s Spring Festival, Chang Haonan went home without a job again. Basically, we will run between Xingcheng and Jinling to solve the problem of radar adaptation. ?However, for him, as long as the calibration problem can be solved, having one more radar and one less radar will not actually affect the workload. On the contrary, more application data can be obtained for iteration. ?Especially for those radars whose main functions are air-to-air radars, the same core programs can be used. The most we can do is to take into account the different bands and adjust the weight coefficients of several typical features. Of course, at his own insistence, the 14th Institute still installed a small switch for the new target recognition algorithm. Can be used at the pilot/operator''s discretion Although no negative effects of this new technology have been found in the current tests, anyone who has written a program knows that if there is no problem after testing 10,000 times, there is no guarantee that there will be no problems in the future. ??The story about a customer who went into a bar and ordered a fried rice and the bar exploded [Note 1], although it probably didnt exist in this era, Chang Haonan had heard of it. The business trip life of running back and forth lasted until the end of February. ?At a time when the media across the country and even most of the world are still paying attention to the series of impacts brought about by China''s formal accession to the WTO half a month ago. February 25, 2000. With almost no one paying attention, the first transmission remote sensing satellite that belongs entirely to China (ZiYi-1 is jointly used by my country and Brazil) was sent into space by the Long March 4B carrier rocket at the Jinyang Satellite Launch Center. . ?After experiencing a series of near misses such as the loss of satellite signals, on March 10, the first hyperspectral remote sensing data of Longyuan and surrounding areas was transmitted back to the Tanzhou Measurement and Control Station located in the northern suburbs of Beijing. Chang Haonan, Meng Zhenyuan, and several comrades from the National Space Administration have been waiting here for a long time. Mr. Luan, Mr. Chang, and Professor Meng, this is the first clear image taken by our Ziyu-201 satellite. In front of the big screen of the measurement and control center, Li Nianheng, chief engineer of the remote sensing mission, reported to the three people standing next to him. In addition to Chang Haonan and Meng Zhenyuan, the other person is Luan Wenjie, the director of the National Space Administration. Of course, since the National Space Administration and the System Engineering Department of the Commission of Science, Technology and Industry for National Defense belong to two brands and one team, Chang Haonan and Luan Wenjie are old acquaintances. Its just that I havent had much work contact in the past. This should be the image after multi-band fusion, right? Chang Haonan asked, looking at a huge black and white grayscale photo on the screen. Or strictly speaking, several photos overlapped together. From the photo, you can vaguely see the mountain ridges, water systems, cities and roads. In addition, there are some surface features. ?These are the data captured by hyperspectral sensors. Since the penetrating power of the pure visible light band is extremely weak, only the most superficial conditions can be seen. But the advantage is that it is very intuitive. Mountains are mountains, and water is water. As the detection band range increases, the amount of information that can be seen also increases. For example, forests, farmland, deserts or grasslands under the white snow. These cannot be directly distinguished in the visible light band. ??However, a large amount of multi-dimensional data is mixed together, which will also make it impossible for the human eye alone to distinguish the contents of the data map. The image on the big screen now contains clearly visible multiple layers of information, and has obviously undergone some processing. Thats right, we followed the most advanced foreign technology this time and adopted the technology of transmission and processing at the same time, so that the results can be produced as soon as the image transmission is completed. Li Nianheng replied: Otherwise, the hyperspectral telemetry data is a unified map, and nothing can be seen with the naked eye. Actually, this is the information gap between the two parties. In principle, Meng Zhenyuans project will not officially start until the satellite is put into orbit. It hasnt even been half a month so far. Therefore, the original intention of the space agency today is to let them visit the measurement and control center, get familiar with the basic situation, and then go back and start working on the project. Since it is a visit, it must be intuitive and understandable. Thats why I specially put this picture. In the end, Chang Haonan came here to work directly. Huaxia Petroleum has even sent out its exploration team in advance, waiting to receive specific exploration sites. So what he wants is obviously not to watch the fun: Then you should have preserved the original data? Of course, they are all kept in the server room. I can take you there at any time when you need them in the future. ?Li Nianheng said and pointed at his feet. Hearing this answer, Chang Haonan breathed a sigh of relief. His worst fears did not happen. ??If the data processing is done on a space-based computer rather than on the ground, then the trouble will be a bit bigger. Because the extraction algorithm of manifold learning is completely different from the existing multi-band fusion algorithm, there is no way to reuse data that has been "contaminated" by the latter. He calmed down and said to Li Nianheng: "Let''s go now. Our algorithm framework has been set up and raw data needs to be extracted." "good" ? Li Nianheng had already received instructions from Luan Wenjie. As long as it did not violate the principles and did not involve satellite orbit and attitude control, the entire measurement and control team worked around Chang Haonan. So he nodded almost subconsciously, and then prepared to take Chang Haonan to the server room. ?However, before he could finish saying the word "ok", his turning movement stopped. After a few seconds, he slowly looked back. ?At this time, Luan Wenjie next to him had also set his sights on Chang Haonan and Meng Zhenyuan. Have you... figured out your algorithm? ?Li Nianhengs brain was running rapidly, but after thinking about it, this sentence seemed to have only a literal meaning... but Zhuizi No. 2 has only been on the line for 15 days. Excluding the day when the signal was not found at the beginning. Only 14 days. Even our Measurement and Control Center has just received the first complete surveying and mapping results of northwest China. ??Then you two are here for the first time and dont even know which way the door of the measurement and control center opens. ??Have you figured out the algorithm for extracting and analyzing remote sensing data? Looking at the confused and confused eyes of the two people in front of him, Meng Zhenyuan took a step back calmly. Professor Chang did it, not us, it has nothing to do with me... ?Of course, he only said this in his heart and could not really say it out loud. Ahem Chang Haonan cleared his throat: In principle, we cant say its been done yet. The framework is just set up. Next, we need to compare it with the on-site exploration data, check the results, and then make some adjustments based on the actual situation. But Luan Wenjie and Li Nianheng both had expressions on their faces like "I''ve read so many books, you can''t fool me" ??These two things before and after can''t be compared at all, right? ? ? If building an algorithm framework is like building a house, then adjusting parameters and checking can only be regarded as decoration. Although it is also a necessary process before moving in, its importance and time required are obviously not at the same level as the former. Now that the land equivalent to mine has been granted to you, the building has already been erected. Absolutely outrageous. ?However, despite being shocked, the two of them still had their sanity. After calming down a little, he took Chang Haonan and Meng Zhenyuan to the computer room where the original data was stored. To ensure information security, using a laptop to physically connect to a server is definitely not allowed. Just make a copy of the data, and then you can do whatever you want. Fortunately, there is no shortage of supercomputer at the measurement and control center, so Chang Haonan does not even need to return to Beijing Airlines, but directly works on site. ?Compared with the radar echo data processed in previous tests, the amount of information contained in each hyperspectral data map is more than one order of magnitude, so it is impossible to obtain real-time processing like on an early warning aircraft. In fact, it took five hours to complete the first step of local embedded feature extraction. But the effect is also immediate. These places seem to be different from the results obtained from data fusion ?Li Nianheng held his laptop and approached him, comparing the pictures on the screen in front of Chang Haonan. ?Compared with the picture I saw in the hall before, there is already a lot more information. Its strange ?Li Nianheng pushed up the glasses on the bridge of his nose: Look here. ??He said and pointed to the position slightly above the picture. North of Longyuan, a land parcel in Mongolia Province. "This place should be an entire Alxa Desert, but the result after processing...not to mention comparing with other deserts, even within this area, the signal characteristics are all messy, and it feels like there is noise that has not been eliminated. " ?This is not a place where the West-East Gas Pipeline will pass, but satellite images were taken together. ?Chang Haonan followed Li Nianheng''s instructions and took a look. Thats really the case. Dont worry, we will need to do regularized matrix decomposition and concept decomposition later. After looking at it for a while, he decided to give up temporarily: This picture is only a semi-finished product at the moment, and it is only exported for comparison with the finished product. After all the data extraction is completed tomorrow, you should be able to see it more clearly. (End of this chapter) Chapter 827 penetrating the earths surface Chapter 827 Penetrating the Earths Surface Tanzhou, if you say it is the capital city, it is indeed the capital. But its actually a hundred kilometers away from Beijing Hang University. Even more than twenty years later, this place is still a place that has not been completely developed. With such a distance, it is definitely impossible for Chang Haonan and Meng Zhenyuan to go back at night and come back the next morning. ?So the two of them just spent the night at the measurement and control center. Comrades in the aerospace system do not distinguish between black and white when they are busy, so there is no other thing in this place, but there is no shortage of things like folding beds in empty rooms. Originally, I planned to finish the work the next day and then go back to wait for the results of the on-site exploration. But the time it took to extract the data this time far exceeded Chang Haonan''s expectations. It will not be until the early morning of the third day that the concept decomposition will be completed. ?This shows that the "useful" information contained in that picture is far more than he previously expected. Fortunately, this algorithm is still in its infancy, so its done here. ??The subsequent feature identification and selection cannot be done by computer because the data has not been checked yet Similar to previous applications in the radar field, the algorithm can only extract signal features with specific differences. As for the specific results corresponding to each feature. ?That requires someone to calibrate it, at least initially. After calibrating a sufficient number of times, you can make a judgment based solely on identifying the characteristics of the signal. Similar to how sonar uses voiceprint information to determine the model of a target submarine. Chang Haonan and others returned to the measurement and control center hall, stood in front of the screen, and looked up at the remote sensing data spectrum that had been processed by the manifold learning algorithm for dimensionality reduction. ??There are more than one anomalies found by Li Nianheng on this picture. So it should not be an occasional bug. But its not available everywhere. So its not like a simple noise interference. I think, first of all, we should figure out which sensor captured these strange data. Chang Haonan first broke the silence: It seems that in the past, these data should have been directly blocked as interference, but after using the new feature extraction method, it was exposed. ?Li Nianheng nodded, obviously very much in agreement with this opinion. So, he hired Ye Jianpei, the deputy chief engineer responsible for the design of the spaceborne detection system ?Although the detector itself is not entirely domestic, the overall design of the entire satellite was entirely completed by China. So everything is still under control. Im afraid raw data alone is not enough. After listening to Li Nianhengs description of the situation, Ye Jianpei thought for a moment, and then expressed his position cautiously: It would be better to have logs of the entire remote sensing data extraction process, so that the reverse inference would be more efficient. We previously performed the extraction operation on server 02, and the operation log should still be saved on it. Chang Haonan replied: Part of the dimensionality reduction process is a black box even for me, but if we just trace the source, it shouldnt have much impact. Ye Jianpei did not answer, just nodded, and then quickly walked to the server room with his two technicians. "It seems...you have to stay here for another night." ?Li Nianheng looked at the back of Ye Jianpei leaving in a hurry, and said to Chang Haonan and Meng Zhenyuan next to him. It doesnt matter. Chang Haonan waved his hand: I also want to see where those abnormal signals come from. This is a question that Chang Haonan has never been exposed to before, including in his previous life, and it does make him a little curious. Mr. Chang, Mr. Chang? I dont know how long later, Chang Haonan, who was leaning on his chair and half-lidded to rest, suddenly heard someone calling his name next to him. ?He quickly opened his eyes and stood up, and draped the blanket that someone had covered him with on the backrest. ?Li Nianheng and Ye Jianpei are standing not far behind the chairs. The result is out? "right." Ye Jianpeiyan handed a document to Chang Haonan in a concise and concise manner: An L-band polarimetric interference synthetic aperture radar is part of the hyperspectral remote sensing equipment group we imported from France. "The function of this device when it was designed was to measure target elevation data, and to obtain detailed parameters of surface cover, such as forests, ice and snow, houses, etc. But now, it is clear that it also captured some things that we had not expected before. information arrived. Chang Haonan took the file and looked at it, and found that it contained detailed data for this L-band radar. Even in the instructions provided by the French, there is no mention of other functions except the two above. Apparently, they dont know either. "Is it possible...that it''s resources buried underground?" ?At this time, Meng Zhenyuans thinking has already spread: Such as oil fields, coal mines or... When he said this, his eyes lit up. Obviously, if so many mines can be found domestically, it will definitely alleviate the urgent need for energy shortages in the past two years. Even if he only played a supporting role, he would probably be able to receive a special allowance. ?However, Meng Zhenyuan''s illusions were quickly shattered. Chang Haonan put one hand on his forehead and replied helplessly: "How is it possible... This is almost the 21st century. The depth of the mines that have not been discovered by humans until now is conservatively estimated to be more than a thousand meters. This is an electromagnetic wave, not a seismic wave. Even the L-band can only penetrate 20 to 50 meters at most. At this point, Chang Haonan''s voice suddenly stopped. As a decimeter-wave radar with a relatively long wavelength, L-band may indeed have a certain degree of ground penetration capability in theory. However, in the past, it was generally believed that the penetrating power of electromagnetic waves depended on the composition of the surface covering layer, so it was unstable and the resolution was average. Overall, it was difficult to obtain the desired effect. ??The very few ground-penetrating radars that have been put into use are also mainly in the longer P-band, using the stronger penetration of long waves to conduct some rough searches. For example, looking for shallow underground caves. But judging from the picture they just obtained. It is true that the penetrating power of electromagnetic waves is not stable. But the effect is not necessarily bad. ? ? It is more likely that there were not enough technical means in the past, and a lot of useful feature data was directly blocked as clutter. ?Thinking of this, Chang Haonan turned around and looked at the other three people: Is there such a possibility? ?He said and pointed to the big screen: Even if its the same topographic feature, there are still differences within it that we dont know about, or that couldnt be observed using remote sensing methods in the past? "you mean" ?This sentence is a bit convoluted, but as an expert in remote sensing technology, Li Nianheng quickly understood what Chang Haonan meant: "For example, deserts can be divided into rock deserts, gravel deserts, deserts and mud deserts. These four landform features are also different in our past remote sensing data. Do you think these four landform features can be further subdivided? " Thats right. Chang Haonan affirmed. ?At this time, Meng Zhenyuan next to him also interjected: Then we can only ask the comrades from the Exploration Institute to take samples on site and then conduct detailed analysis. There was obvious excitement in his tone. ??Although he did not find the mine as he just thought, if Chang Haonan''s guess is true, then... ?Well, I cant think of any practical significance at the moment. ??However, at least in the field of geology, the names of the four people present today can definitely be left. Furthermore, practical significance is often discovered during seemingly useless research processes. What if? But Chang Haonan shook his head: The areas with abnormal signals on this satellite map are widely distributed, not just in Longyuan. The exploration power of the petroleum system alone may not be enough. After speaking, he looked at Li Nianheng. ??As the person in charge of the remote sensing mission, the other party will inevitably have to deal with relevant units in the geology profession. In terms of professional research, they are obviously more professional. ??Li Nianheng already understood what he meant without him opening his mouth. The latter immediately called a staff member from behind: Xiao Song, please contact the land and resources department immediately and ask them to coordinate with the comrades from the China Geological Survey Bureau to cooperate with us to conduct on-site exploration at these points. Do it all? There are dozens of marked points on the map. The person who was called was a young man who looked like he had just started working. He had obviously never seen such a formation. ?Li Nianheng pondered for a while. After calming down, he felt that the movement was a bit too loud, so he chose a compromise plan: If the personnel and funds are really limited, we should at least do the research on the Loess Plateau area in the east of Longyuan and the Alxa desert area in the west of Mongolia Province. I think the characteristic signals extracted from these two areas are more complex. Complex means a large amount of information. Since we are all on a trip anyway, we must give priority to places like this. In the east of Longyuan, the China Petroleum Exploration and Development Research Institute can send personnel to assist them. ?Chang Haonan finally added. "yes!" After the staff member answered simply, he turned around and trotted out of the hall. Professor Meng. Chang Haonan breathed a long sigh of relief and turned his attention back to the picture displayed on the big screen: Our project may not end so soon. (End of this chapter) Chapter 828 Isn’t it just equipment? Buy it! Chapter 828: Its just equipment, buy it! ?Geological exploration is by no means an easy and pleasant task, even when precise coordinates have been obtained. Fortunately, today''s technical equipment, especially vehicles and helicopters, are relatively complete, and safety is relatively guaranteed. But if you really want to dig deeper into a point, it will still take anywhere from a few months to a few years. Therefore, after deploying some key points of exploration work, Chang Haonan and Meng Zhenyuan returned to Beijing Hang University. For them, all they can do now is wait. Fortunately, Chang Haonan has no shortage of projects at hand. In the next half month, in addition to paying daily attention to the progress of Ricci flow surgery, he also guided Li Yabo in his graduation project. Actually, Chang Haonan didnt know what the so-called 1-meter all-composite shell specifically meant until the completion of the project before the Spring Festival. Haofei wants to develop a new engine nacelle for the C808 passenger aircraft, which is about to be put into mass production. It is the thing that fixes the engine to the fuselage. The diameter is about 1.3 meters. If successful, it can probably reduce the weight of the aircraft by about 300kg. It can only be said that technically the future is indeed promising. But there is nothing operable for the time being. At present, almost all high-grade composite materials used in China rely on imports, and the cost is very high. The weight saved by replacing titanium-aluminum alloy with carbon fiber, even if it is extended to the full life cycle, is not worth the extra cost in the manufacturing process. ?Of course, it doesnt hurt to do some research in advance. After all, there will be many places where similar designs will be needed in the future. In the long run, carbon-based composites will be used in parts such as the casings of launch vehicles and ballistic missiles, the bodies of large aircraft, and even the fan blades and casings of turbofan engines where the working environment is not particularly harsh and the probability of damage is relatively low. It is a major trend for materials to replace traditional alloys. Quan should be regarded as a technical reserve. Of course, for an undergraduate doing graduate work, these are still relatively far away. So what Chang Haonan asked Li Yabo was to design a theoretically feasible overall plan. The main purpose is to exercise the latter''s ability to use existing tools to solve problems. Otherwise, it would be really embarrassing if the students of the creator of TORCMultiphysics cannot play the software developed by their teacher. ?However, sometimes life is like this. When you dont expect something, it can often give an unexpected result. ?One day at the end of March, just as Chang Haonan was replying to Professor Perelmans email asking about the progress, Li Yabo suddenly poked his head into the office: Teacher, please take a look, my simulation results seem a bit strange... ?These days, students with laptops are naturally very rare, so Chang Haonan could only follow Li Yabo to the student office to check on the situation. ?It is said to be a student office, but now there are fewer students than teachers in the Torch Laboratory, so it is actually equivalent to Li Yabo having it all to himself. ?So, the young man simply moved his luggage from the dormitory and started his life as 007 Liver Emperor. After entering the door, Chang Haonan carefully bypassed a folding bed and came to Li Yabo''s workstation. On the computer screen, a finite element model that is thick in the middle and thin at the ends, slightly cigar-shaped, is displayed. It was the overall plan of the engine nacelle that he designed. ?Chang Haonan came closer to the screen and quickly read the results of the finite element calculation In 1999, last year, a hardware engineer named Huang Renxun officially coined the term "GPU". In fact, the processor that assists the CPU in graphics processing took shape as early as the 1980s. But the GeForce256 launched by NVIDIA has brought an epoch-making feature. Real-time programmable shading technology. TORCHMultiphysics will soon launch a free (not free shipping and storage carrier materials) and optional feature update. ??When the user''s computer is equipped with an independent GPU, the results of finite element calculations can be directly superimposed on the surface of the 3D model in the form of graphic rendering. Instead of being able to output only a dry table like in the past. Though in terms of results, there is no difference between the two. But for the human eye, the former method is obviously much more intuitive. Therefore, Chang Haonan can almost see at a glance that the design on Li Yabo''s computer basically meets the project requirements proposed by Haofei. The result looks okay... He stood up straight again: Do you think something is strange? ?At this time, Chang Haonan glanced at the annotation in the lower right corner of the screen out of the corner of his eye. ?The nature of the material he chose is written there. ?Youngs modulus 700Gpa The corners of his mouth twitched fiercely. There is no need to look at other parameters. Definitely T700 carbon fiber. It can only be said that if you are not a householder, you dont know how expensive firewood and rice are. T700 has only been put into commercial use in the past two years, and because the production capacity cannot be increased, the unit price is quite high. If you use this kind of thing extensively on a small 50-ton regional aircraft, you may be beaten to death by the user... Fortunately, it is still in the design stage. Anyway, judging from the standards of practice, the problem is not big. Here it is. ?Li Yabo continued to enlarge and enlarge the 3D model as he spoke. Finally, Chang Haonan discovered that the carbon fiber structure on the screen was not just a shell modeled. It is composed of many thin layers. Have you studied the impact of composite laminate structures on performance? ?Chang Haonan was a little surprised. Yes, I feel that if we only provide an overall design plan, then Party A should be able to do it by itself, and there is no need to find our research team to solve the problem at all. ?Li Yabos first sentence made Chang Haonan very satisfied. Although I dislike the Haofei Group a bit. After I tried several different lay-up plans, I found that the orthogonal lay-up is significantly better in terms of ability to withstand shear loads and lateral loads, but this result is different from what I saw when I was on a business trip with Haofei Group. Its not the same Also, even if they are orthogonally stacked, the results of my two calculations will be different..." In a daze, Chang Haonan seemed to see himself from a few years ago in the other person. Subjective initiative is full. ?Of course, I am a true undergraduate after all, so there is definitely still a huge gap in ability from what I was back then. ?However, this is not the most important thing. Thats not surprising. He listened quietly to what the other person said, and then replied: "The anisotropy of this type of carbon fiber-reinforced composite material is very complex, the interlayer strength is unstable, and the thermodynamic and mechanical properties of the fiber and matrix are very different. We, or not only us, are very concerned about this material all over the world. The nature of it is still not fully understood. So, although the current TORCMultiphysics can use your method to model the structure of multi-layer composite materials, it is unable to perform accurate numerical simulations in this case. "This is why I told you before, as long as we can design a theoretically feasible overall plan." Hearing Chang Haonans explanation, Li Yabo showed a slightly embarrassed look on his face: Thisit turns out to be like this ?He said and scratched his head: Then arent these all useless efforts... Originally, Li Yabo wanted to secretly do the whole job and shock the teacher for a whole year. ??As a result, I didnt finish my work in the end, and I had to go to the teacher to help find the reason. That cant be said. Chang Haonan could roughly guess what the other party was thinking, and shook his head with a smile: After all, you have done the entire modeling and calculation process yourself. It will be a rare experience for your future research work. Some experiences can only be summed up through failure. Li Yabo nodded somewhat disappointedly. But Chang Haonans next sentence made his eyes light up: "However, if you are really interested in the microstructure of composite materials, then I can directly purchase a batch of related equipment and materials for you and study it experimentally." Reallyreally? ?Li Yabo could hardly believe his ears: I asked before when I went to Haojing on a business trip, the equipment and materials are very expensive... Obviously, he had already secretly understood the situation. Before Li Yabo could finish speaking, Chang Haonan waved his hand: The equipment used for laboratory research is different from their industrial production. The cost is not that exaggerated. You, teacher, and I can still afford it. You just have to think clearly. Strictly speaking, this is materials science, not the field of structural mechanics. Experimental research is far more difficult and troublesome than numerical calculations..." Ive thought it through. Li Yabo replied firmly. "Well." Seeing his students persistence, Chang Haonan could no longer discourage him: With your current design, its no problem for you to graduate from a bachelors degree. He said and pointed to the model on the computer screen: So, from now on, I will officially treat you as a graduate student. Hearing this, Li Yabo couldn''t help but sit up straight. ?Although he didnt express his position, this action said everything. Chang Haonan nodded slightly when he saw this, and then said in a solemn tone: I will give you one month to write a proposal report on the research on the microstructure of composite materials and attach the experimental equipment and materials you need. If there is nothing wrong with the report, I will prepare it for you as soon as possible. Do you understand? (End of this chapter) Chapter 829 Invitation from Hufei Chapter 829 Invitation from Hufei Li Yabos mobility is really hard to say. ??After Chang Haonan assigned him a task, he went on a routine business trip to Shengjing At present, both models of the turbofan 10A/B have entered the installation and flight test stage. If there are no problems with these dozen or so prototypes used in small batches, the next step is to finalize the design. Correspondingly, the information fed back from the user side has also increased exponentially than in the past. These first-hand data, even if there are no abnormalities, are extremely valuable assets for aviation development research and development. Hence, Chang Haonans frequency of trips to Shengjing has increased significantly in the past six months. At least it is no longer in a state of long-term remote control. When he returned to Beijing Hang University from School 606 a week later, Li Yabo handed over the completed plan as soon as possible... Half an hour later. You...did all of this alone? Chang Haonan asked in a calm tone while flipping through the last few pages of the report. ?However, he put on this look specially. After all, you still have to maintain a somewhat enigmatic image in front of students. But in fact, what Li Yabo handed over could be said to be full of surprises. In addition to the normal content of the project proposal report and the list of required equipment and materials that he had previously requested, the other party also listed two to three similar models of different brands as alternatives for each item in the list. ?Even more detailed information including performance, price, lead time and even supply risks is supplemented in the form of appendices. It can be said that even a chief procurement officer or procurement manager of a medium-sized enterprise can hardly do a better job in planning. ?Of course, the above two positions are more focused on the ability to manage and control channels, rather than just getting a plan. But thats all for later. For an undergraduate student with no special resources to do this, it completely exceeded Chang Haonan''s expectations. I asked my classmates about the contact information of some foreign manufacturers and the format for writing business emails, and I figured out the rest by myself. Li Yabo replied: Actually, I didnt plan to do the latter at the beginning, but after I finished writing the proposal report and equipment list, I came to the office several times and couldnt find you, so I thought Id be free anyway, so I might as well make some preparations in advance. Oh...I was on a business trip the other day. Chang Haonan said as he took out a business card from the glove box under the monitor and handed it to the other party: If you encounter this situation again in the future, just call me on my mobile phone. This was printed in batches by the General Office of the Office when he first took up the post at the Aerospace Power Group. But Chang Haonan really doesnt have many social occasions, so its been almost a year now and he hasnt sent out a few photos. "Thank you, teacher." Li Yabo took it with both hands and put it in his pocket. After a short interlude, Chang Haonan returned his attention to the report on the table. He pointed to a column with the words SGL Group of Germany and Hexcel Group of the United States: Are you the one who contacts these foreign companies? These two companies are two of the four largest carbon-based composite material manufacturers in the world and are leading companies in the industry. If Li Yabo can directly contact each other in his personal capacity, there will be some means. ??The latter came forward and took a look at the part Chang Haonan was pointing to: Yes, my English is pretty good, so I can handle it whether its on the phone or sending an email. Obviously, he misunderstood the meaning. Thought it was his tutor asking him about language problems in communication. I dont speak English proficiency. Chang Haonan waved his hand: As far as I know, neither SGL nor Hexcel has general consumer business. If you call directly, they will reply to you? ?This table contains the detailed product series of the two companies, including brands, corresponding performance and prices. The content is quite detailed. It really didnt work at first. Li Yabo was a little embarrassed and replied: But then I claimed to be the purchasing manager of Torch Group and learned some professional business English from my classmates, so SGL and Hexcel Group sent me product catalogs. "But Toray and Teijin said that they must have some kind of certificate issued by the group, which is quite troublesome anyway. In addition, I really can''t speak the same English as the Japanese people opposite me. In the end, I thought that I had already contacted the two companies, so I decided to Dont worry about that anymore. After hearing this, Chang Haonan laughed a little helplessly: You have a really sharp mind In the past, he was always trying to pull off the big flag, bluffing to scare others. ??I never thought that one day I would be the one being pulled out to scare people. ?Furthermore, even he did not expect that the name Torch Group would be so well-known internationally. So much so that the other side didnt even consider why a company that started out as a software company suddenly wanted to buy carbon fiber... As for the other two... It is not necessarily aimed at the Torch Group. There is a high probability that this is a classic rigid operation of Japanese companies, which is not surprising. "hey-hey" Li Yabo scratched his hair: "I was mainly thinking that I am a member of our Torch Laboratory, and the Torch Laboratory is a laboratory jointly established by Torch Group and our school. So after calculation, I should be considered at least half of the Torch Group''s employees...rounding off Just one ?Chang Haonan showed an expression that he couldn''t bear to look at directly, and then waved his hand to indicate that this was not a big problem and there was no need to delve into it further. You will send this to Teacher Liu Chenchen later and ask her to report it to the school, and then you can prepare to place the order. This is whats special about the Torch Laboratory. Even this kind of six-digit expenditure is subject to the reporting and annual review process. In other words, you can spend money first and then conduct a centralized review at the end of the year. ??If we were to change places, considering the things listed in Li Yabo''s table, and also involving the use of foreign exchange, I think it would be quick to get the approval next year. Then Ill practice using the things I have on hand in the past few days, and then we can officially start after the equipment is in place? ?Li Yabo is obviously gearing up and ready to do something big. Just like every new graduate student who has just entered the laboratory and has scientific research dreams. However, most of them will not be able to continue on the road of scientific research due to reasons including but not limited to wrong choice of research direction, insufficient objective conditions, bad luck, or inappropriate mentors. The conditions in Li Yabo are obviously much better. Chang Haonan looked at the other person''s eagerness to try, and suddenly felt that it was necessary for him to take such a highly motivated student to see the world. Theres no hurry yet. He pushed the form on the table in front of Li Yabo: The project you took over from Haoxifei was initially to build an engine nacelle for the C808 passenger aircraft, right? "right." The latter nodded. Have you seen that plane? "this" ?Li Yabo hesitated for a moment: Ive seen photos in Haofei. It feels round and round, and its different from the passenger planes Ive seen before. Although Figure 334 is a 100-seat regional airliner, its body diameter is that of a mainline airliner, and the visual effect is indeed relatively short and thick. But this is also one of its main competitiveness. Have you never seen it before? ?Chang Haonan leaned his upper body on the back of the chair and asked in a relaxed tone. "No." Although Haofei Group is responsible for the manufacturing of some parts of the C808, it does not involve the body structure and final assembly, so it does not look like an airplane at all. "Well." ?Chang Haonan opened the drawer and took out a beautifully printed envelope. ?On it is printed a C808 passenger plane painted in red, white and yellow colors and taking off. Two days later, Hufei Group invited me to attend the celebration ceremony for the completion of the certification test flight of the C808 passenger aircraft. Then you will go with me to see our domestic passenger aircraft! ?Li Yabos expression was dull at first, then turned into surprise, and then turned into ecstasy. Performed a face change without props. Reallyreally? ?Those who choose aviation as a major in college and are still determined to continue studying on this path after four years have some sentiment or at least interest in it. As Chinas first jet airliner to complete certification, the C808 has both emotional value and commemorative significance. Definitely a chance to witness history. "certainly." ?Chang Haonan gestured to the envelope on the table: Inside is an invitation ticket to board the plane. Li Yabo picked up the envelope faster than ever before and looked inside. Then he raised his head again as if he remembered something: Teacher, if you give me this, you... ?Chang Haonan smiled and took out several more identical envelopes from the drawer: How could Hufei only give me one invitation? There are many more here ?He said and showed it in front of Li Yabo: Its just that basically all the people who are close to me have received it, so except for you, I really cant give it away (End of this chapter) Chapter 830 C808, successful evidence collection! (4K) Chapter 830 C808, Evidence obtained successfully! (4K) Two days later, Li Yabo followed Chang Haonan and boarded a plane from Xijiao Airport to Shanghai. Judging from the formers bloodshot but bright eyes, the child must have been so excited that he didnt sleep all night. After getting on the plane, I touched and looked at this and that. After all, flying is a rarity these days. Let alone business jets. Even Chang Haonans performance was not much better when he first got on the plane. So he didnt stop the other party. It wasnt until the plane started taxiing that Li Yabo sat back down in the seat opposite Chang Haonan and Yao Mengna. The latter also got an invitation because he had solved many problems for Hao Fei when he was a PhD student. After all, this is the first time that Chinas own jetliner has successfully completed all certification flights It is true that Hufei did produce a batch of 40 MD82 passenger planes in the past, but they cannot be regarded as their own models and are just equivalent to working for McDonnell Douglas. There is no need to repeat evidence collection. ?Although the C808 is very similar to the Tu334, Tupolev and Hufei have specially upgraded and adjusted it in accordance with China''s requirements and standards. Even in order to ensure production consistency and thereby reduce costs, the Russian-made Tu-334-100C, which was officially transferred to mass production at the Kazan Aviation Factory, finally adopted the C808 rather than the technical status of the Tu-334 prototype. The original design is retained only in areas such as high-cold adaptability equipment and cockpit instruments. Such an aircraft, to say it is independently developed may not even make sense. After all, the overall design and a considerable part of the components still come from abroad. But if it is a Chinese model, no one can find anything wrong with it. It is normal for the battle to be more grand. The speed of business jets is slightly faster than that of ordinary passenger jets. The aircraft of the 34th Division have a very high priority in flight scheduling. So it takes less than two hours to get from Beijing to Shanghai. At this time, Runway 1 of Pudong Airport has only been completed and put into use for half a year, and there is no trace of the new assembly workshop that later belonged to COMAC. So the aircraft after final assembly at Hufei will be docked at Dachang Airport in the northern suburbs of the city. In the past, it was quite troublesome for civil aviation to conduct test flights at military airports. ??But after the adjustment in 1997, Hufei already belonged to the Commission of Science, Technology and Industry for National Defense, which made it a lot more convenient... Challenger 601 landed lightly on the only runway at Dachang Airport. When he was in mid-air just now, Chang Haonan had already seen the situation on the ground. At the entrance of the assembly workshop, a total of five prototypes 101-105 and certification verification machines were arranged in a semicircle. And around there, there were crowds of people. At the center of the five planes facing the noses, a red carpet-covered rostrum has also been temporarily set up. Teacher, these five planes are parked in the crowd. Is it impossible to take a test flight today? ?Li Yabos face was almost pressed against the porthole, with a bit of disappointment in his tone. Obviously, he thought the invitation to board the plane was a plane ticket. It was impossible to have it in the first place. Today I am just attending a ceremony. Chang Haonan shook his head in amusement: The C808 has only completed certification test flights and has not been officially put into commercial operation. These five aircraft are still in prototype status. How can anyone dare to put so many important guests today into a prototype? Li Yabo thought it was right when he heard it. After all, the Airbus A320 did this once, and it hit a tree and crashed. ?So much so that there is still an urban legend circulating today. Said that the woods were planted by Boeing... ?Planting trees in Boeing is of course just a joke, but with such a lesson learned from the past, it is normal to be conservative. ?However, understanding is understanding, and the disappointment will not fade away so easily. While the two of them were talking, the plane had slowly stopped. Dont be too disappointed either. Chang Haonan said as he unbuckled his seat belt: At the end of this year, or at the latest early next year, the first mass-produced C808 will be put into commercial operation, and the route should be from Beijing to Shanghai as expected. ?Li Yabos eyes lit up. However, I probably wont attend the maiden voyage ceremony. Chang Haonan changed the subject: If you want to participate, try to see if you can make the project at hand more famous before then, and ask them to send you an invitation letter when the time comes. Yao Mengna next to her also smiled knowingly when she heard this. ?With Chang Haonans current influence, it is not difficult to get a quota for his students to participate in the first flight. But what others give is ultimately not as good as what you take. Besides, Li Yabo also has this potential. ?During the previous interview, if Chang Haonan hadn''t also taken a fancy to this student, she would have been prepared to take action. Sure enough, after hearing Chang Haonan''s words, Li Yabo was not disappointed, but became excited again. ??If this were placed in a hot-blooded comic, the fighting spirit in his eyes would probably be ablaze. As the cabin door opened downward, Chang Haonan and his party walked down the gangway one by one. Hufei has naturally arranged for general manager Zhou Qingzhi to receive him in person. After the aviation industrys group reform, Hufei has become independent from it and has become a lower-level enterprise directly responsible to the Science and Technology Commission. ?This is mainly to avoid unnecessary troubles caused by the military-industrial nature of the Aviation Industry Group when selling passenger aircraft in the future. Those who appeared together at the bottom of the gangway even included Zhang Hongbiao, deputy director of the Science and Technology Commission, who came in advance. Comrade Haonan. The two shook hands: Before I took office at the Science and Technology Commission, I had heard a lot about your deeds. Even though it was the first time we met, Zhang Hongbiao was very enthusiastic: This time I went to Director Ding to apply. Otherwise, the opportunity to attend the ceremony on behalf of the Science and Industry Committee would not have been mine. ?Zhang Hongbiao was appointed to the Science and Technology Commission after Zhang Dongxu retired at the age of 18 after the conference last month. He is responsible for the military-civilian integration industry. So Hufei also has a domestic passenger aircraft project, which is actually his scope of responsibility. ??It''s just that after talking like this, the relationship between the two people has obviously become quite familiar. In fact, in terms of level, Zhang Hongbiao is still half a level higher than Chang Haonan. ?However, first of all, the latter situation cannot be judged based on common sense. Secondly, unlike other deputy directors of the Science and Technology Commission, Zhang Hongbiao does not have a military position. He is also the first member of the leadership team of the Science and Technology Commission without a title. ?From Chang Haonans perspective, one can naturally guess that the superiors have begun to intentionally remove the military-related color of the Science and Technology Commission, paving the way for the next transformation. But for Zhang Hongbiao himself, he must still be worried that his work will not be carried out. So there is absolutely no harm in establishing a good relationship with Chang Haonan, a key subordinate who also has no title. ?After a few people exchanged pleasantries, they walked along the red carpet to the assembly workshop in the distance. This road was obviously specially designed. Because it happens to pass a landmark of Dachang Airport in the middle The Y-10 prototype made its first flight exactly 20 years ago. ??This plane was originally parked slightly outside the factory area, and it was obviously moved here specially for today''s ceremony.?????However, the arrangement is good. Zhang Hongbiao and Chang Haonan stopped nearby. The latter looked up at the plane, which had become somewhat dilapidated due to weather and sun, and couldn''t help but feel a little emotional. ??Its just that Zhang Hongbiao is right next to him now. ?If the other party doesn''t say something, Chang Haonan won''t be able to speak easily. ?And Zhang Hongbiaos cooperation is just right: For us, luck 10 should be a lesson. "yes" Chang Haonan replied: The technical level is insufficient, which is an objective problem of ability, but disbanding the technical team, sealing up technical data, and even losing the data later...this is an ideological problem. The research and development of Yun 10 was not hosted by the Science and Technology Committee, so the two of them naturally had no psychological burden when dissing. Zhou Qingzhi, who was following behind, was worried that he couldn''t find a chance to interrupt, so he quickly expressed his stance when he saw this: "When the Yun-10 was discontinued, I was just a technical director. I remember that at that time, Comrade Cheng Bushi made several reports, hoping that while introducing the MD82 final assembly line, some of the R&D and production capabilities of the Yun-10 could be retained to provide future benefits. Domestic passenger planes leave a spark. As a result, the Civil Aviation Administration of China did not agree, and in the end the entire production line and team were transferred to McDonnell Douglas ? Hufei is a new member who was transferred to the Science and Technology Committee a few years ago. Zhou Qingzhis move is obviously to express his intention to break away from the past. Chang Haonan naturally heard it. ?However, although he also looked down upon the people of the original Civil Aviation Administration, there was no need to show it on this occasion. So Zhou Qingzhi continued: "Just like that, when the news came out in 1996 that McDonnell Douglas was going to be acquired by Boeing, we almost didn''t know what to do from top to bottom. At that time, there was also a big layoff, and there were all kinds of rumors. If the Science and Technology Commission had not given us a clear path in time, we dont know what would have happened..." While saying this, Zhou Qingzhi kept looking at Chang Haonan. As an insider, the former certainly knew who pushed the entire Hufei Group at the most critical moment. Its just that some things are not suitable to be explained too clearly. Chang Haonan smiled, nodded and replied: C808 and C909 are just to solve the problem of whether we have domestically produced passenger aircraft. After all, the overall design belongs to others. After we have fully understood these two models, we will definitely develop a passenger aircraft with completely independent intellectual property rights. You, Shanghai Flying, have a long way to go..." Where, wherewe already have some experience after all. ?Zhou Qingzhi waved his hand: President Chang said last year that he would design domestic high-bypass-ratio engines for future mainline airliners. This is the real hard nut Obviously, as a unit mainly responsible for the research and development of large civil aircraft, Hufei has always been paying attention to the trends of the aviation power group. At that time, Zhou Qingzhi speculated that the C909 was subject to basic design issues. If a larger-diameter engine was installed, it would be difficult to ensure a sufficient safety margin between the lower edge of the engine nacelle and the ground. So the new generation mainline passenger aircraft mentioned by Chang Haonan at that time must have been a brand-new model after the C909. Today, this guess can be verified. At two o''clock in the afternoon, the celebration ceremony for the successful collection of evidence officially began. First of all, Zhou Qingshang came to the stage to summarize and report: Domestic jetliners are the long-cherished wish of hundreds of thousands of employees in the aviation industry who have been striving for them. Starting from the beginning of the project, Hufei Group has gone through more than 7,000 days and nights of unremitting struggle..." ?Chang Haonan sat on the rostrum behind Zhou Qingzhi and glanced at the invited guests. ? Many technicians who participated in the Y-10 and MD82 projects are now elderly and have not had the opportunity to participate in the development and production of the C808 passenger aircraft. Listening to Zhou Qingzhis review of the past twenty years, I naturally have mixed feelings in my heart. Especially the heads of the Yun-10 R&D team at that time were in tears... As the first launch user, the representative of China United Airlines has a mixture of pride and worry on his face. ? Being able to operate domestically produced jetliners first is naturally a huge benefit in terms of industrial policy. But on the other hand. A new aircraft and logistics support system means a new set of technical teams. Before the fleet size is expanded, the cost cannot be amortized. Furthermore, new model aircraft that have just entered service are generally at the high point of the bathtub curve of failure rates. This means that the average maintenance hours per flight hour is higher, and it is difficult to fly three or four times a day on the same route with different flight numbers like mature models. In short, there are both challenges and benefits. ?Chang Haonan even saw a few foreign faces, who should be foreign customers. You must know that C808 is stuck at the highest point of the mutual recognition range of airworthiness between China and Europe and the United States. In other words, this will be an aircraft certified by CAAC, EASA and FAA at the same time. It is still quite attractive for some airlines that do not need to fly long-distance routes. As for other units involved in research and development, Shanghai Aircraft employees, and foreign experts on Tupolev... Of course everyone is happy. ?However, amidst all the joy, there are exceptions. ??The representatives sent by the Civil Aviation Administration to attend did not look very good. After all, Hufei used to be under their jurisdiction and was only stopped later. At the beginning, many people were ready to see the Science and Technology Commissions jokes. After all, at that time, it seemed that without the cooperation of Europe and the United States, let alone whether a passenger aircraft could be built, even if it could be built, it would be difficult to find a market without a certificate of airworthiness from others. ?As a result, not long after, news came that China and the European Unions JAA had signed a mutual recognition agreement on airworthiness. ? Immediately afterwards, the C808 and C909 branch and main line passenger aircraft were launched one after another... Then, the development of these two models has been smooth sailing... Thats all. However, after McDonnell Douglas was acquired by Boeing, it quickly gave up its entire MD series passenger aircraft product line. ?This means that if we had continued to pursue MD90, we would have failed miserably. Comparing the two aspects, the result is a bit intriguing... After seeing the faces of all living beings in this circle, Chang Haonan smiled faintly. ??If he had a camera in his hand at this time, he would be very willing to record the scene just now. At this time, Zhou Qingzhi had already talked about the certification test flight. Comrade Haonan. Zhang Hongbiao, who was sitting next to Chang Haonan, suddenly said: It took a little more than a year to obtain certification and test flight for such a large aircraft? Chang Haonan nodded with some confusion, and said to himself that this 50-ton regional passenger plane looked so big... And more than a year is not too fast. You know, there is no A380 with a serious name at the moment. In the last life, even counting from the first flight to getting the certificate, it only took 1 year and 10 months... Zhang Hongbiao paused for a moment and continued: When I went to Bingcheng for inspection before, I heard from the comrades there that when they collected evidence for Yun-12, it took several years..." Now Chang Haonan understood. ?If compared with the Yun 12, it is indeed quite big and quite fast... This is the benefit of achieving mutual recognition of airworthiness with Europe and the United States. ?He thought for a moment and replied: When you go abroad to do airworthiness work, on the one hand, you are not familiar with the place, and you are not used to the working language and work style. On the other hand, you will inevitably be deliberately put in a stumbling block by others. It is definitely more convenient than in our country..." Zhang Hongbiao nodded thoughtfully, and then asked: As for this market... I just heard Comrade Qingzhi say that the only domestic launch users are United Airlines and Bashu Airlines. Can they have a large enough fleet size? Thats not a problem. Chang Haonan shook his head: "There are only a few machines in the first batch of production, and it is unlikely that there will be too many users to start up. It will take a long time to ramp up production capacity. What Hufei needs to worry about now is not the order volume, but whether it can complete the order with quality and quantity. " Besides, if part of the luggage compartment under the passenger cabin of this platform is changed into an additional fuel tank, it can probably guarantee a range of 5-6 thousand kilometers. It is absolutely no problem to make it a special aircraft platform or a special aircraft. It can be used as a backup..." (End of this chapter) Chapter 831 Millennium Math Puzzle Chapter 831 Millennium Mathematical Puzzle After Zhou Qingzhis opening speech, it was naturally Zhang Hongbiaos turn as the attending leader to speak. As he spoke, the faces of the people from the Civil Aviation Administration below became even darker. Chang Haonan has no doubt that if it were not for the direct decision from higher-level leaders, it would be difficult for C808 to even find Bashu Airlines, the second launch user. ?However, this is not important anymore. After all, the reason why a separate unit like the Civil Aviation Administration was established was not just to manage a few airlines. More importantly, we want to rely on it to coordinate the development of the entire Chinese civil aviation industry. As a result, you coordinate and coordinate everything, and your operations are as fierce as a tiger''s. Performance in the last 20 years was not as good as the next two years. ?Now that the latter half of the functions have been handed over to the Science and Technology Commission, there is no need to retain such a large group of people. Hence, the Civil Aviation Administration should soon adjust from a direct bureau to a secondary bureau under the relevant ministries and commissions, stripping off most of its administrative functions and becoming a relatively simple business department. It does not pose any threat anymore. ?This is why Chang Haonan told Zhang Hongbiao just now that Hufeis most important task now is to deliver orders with quality and quantity Although it is difficult for regional passenger aircraft to become mainstream in a country with the population size and land area of ??China, even flying to some border areas and routes in the central and western regions is enough to support this model. As long as it can operate stably and safely for several years, with the support of FAA and EASA airworthiness certification, exporting is almost a matter of course. Plus some orders for military platforms and special aircraft... It is no exaggeration to say that good times are yet to come. After the celebration ceremony, there is naturally a routine banquet. Its just that Hufei can be said to be ingenious this time. Neither chose a high-end hotel nor a group restaurant. Instead, the banquet hall was set up directly in the open air near the assembly workshop. In mid-April in Shanghai, the weather was just cool but not cold. ??The breeze is blowing slowly, and not far away are the five passenger planes that are the protagonists of today''s celebration... It is also a different kind of experience. ?Amidst the crowd of toasters, Chang Haonan toasted to Zhou Qingzhi and the United Airlines representative next to him. Then, I wish you success in your first business operation! At the same time, across the ocean. Clay Institute of Mathematics, Massachusetts. ?Early in the morning, Langton Clay hurried into the office of Arthur Jeff, the director of the institute and a professor of mathematics at Harvard University. As soon as he entered the door, he placed a newspaper in his hand in front of the latter, and then sat down on the sofa not far away: Arthur, next month, the Collge de France will host a conference on Millennium Mathematics, and we need to make some noise. The two co-founded the institute two years ago. Because the main business of the investor and sponsor Clay is a businessman, Jeff is responsible for the daily work of the institute. ?However, the former is the financial owner after all and still has the right to speak on key matters. The Clay Institute is said to be a non-profit organization, but as we all know, non-profit not profit-making. ? Langton Clay invested a lot of money in the institute, partly because he was interested in mathematics, a subject he didn''t know much about. But the more important purpose is to gain a certain influence in the academic circle. Objectively speaking, he is quite successful in this regard ??Although the institute has only been established two years ago, it is already somewhat famous in the circle of theoretical mathematics. Even some well-known mathematicians will at least have a certain impression of the name Langton Clay. If it is in public, a few words of "high praise" will be given out of politeness. Mathematicians also need to eat. ?However, Clay himself is still not satisfied with the status quo. ? He ??has always hoped that his Clay Research Institute can become the world''s top research institution like the Institute for Advanced Study in Princeton. Even if it is not top-notch in level, at least it should be top-notch in influence. Make some noise? ?Jeff picked up the newspaper and quickly scanned the reports: Langton, you know, mathematical research requires inspiration. "There is only a little more than a month left, and I can''t guarantee you that we will come up with any world-shaking results." "Well..." ??Clay was a little frustrated, but he also knew that the other party was right. ?Mathematics is not something that you will definitely get results if you are willing to spend money. At least not within the specified time limit. Originally, I planned to hold a Millennium Mathematicians Conference in the name of the institute at the end of last year, but it was overtaken by Princeton, and this time it was the Collge de France If it continues to be delayed, the millennium, a time window that attracts worldwide attention, will pass..." From the end of 1999 to the first half of 2000, activities to celebrate the millennium were relatively normal. But if its late 2000 and youre still celebrating the millennium it seems weird. So, there is not much time left for Clay. ?Looking at the anxious look on his old friend and sponsors face, Jeff had no choice but to start thinking. As a mathematician, he quickly thought of a wild idea: Langton, maybe... we can think differently. Perhaps you have heard that a hundred years ago, in 1900, David Hilbert proposed 23 mathematical problems at the Second Congress of Mathematicians? Actually, Langton Clay had not heard of it. ?Of course he knew Hilbert, but that was all. ?However, this does not affect his understanding of the other party''s meaning. "You mean, I...uh...our institute can also raise some mathematical problems and call on mathematicians to answer them?" Arthur Jeff shook his head, seemingly helpless at Clay''s overestimation: Just a call is definitely not enough. Hilbert was already a world-famous master of mathematics in 1900. He proposed 23 mathematical problems and naturally some people responded. Our institute..." Speaking of this, he raised his head and looked at Clay on the sofa: Our research institute only has a name, but not much fame...so if we want to have enough influence, we still need some additions. You meana reward? Yes, the bigger the amount, the better. ?Jeff replied. Thenone hundred thousand dollars? Clay asked tentatively. O ?Jeff almost spat out the coffee he just drank. One hundred thousand dollars is less? Clay felt a little tingly on his scalp. You should know that although he provides a large amount of funding to the research institute every year, this kind of sponsorship of scientific research is actually a way to avoid tax, which means that he does not really need to lose much money. ??But if there is a reward, the money will be scattered out solidly. One hundred thousand dollars is indeed a lot, but since what you want is a gimmick, it will definitely not be enough. ?Jeff replied: At least a million dollars. Hissthen what if I also propose 23twenty-three million US dollars? "no" ?Jeff shook his head like a rattle: First of all, there is a high probability that there are no more 23 mathematical problems with enough weight for you to post a reward. Secondly, since it is a reward, money needs to be paid after it is solved. You dont think that those mathematical problems that have been left until now will be solved easily, right? "If we raise the level of difficulty of problems a little higher, such as Hodge''s conjecture, Riemann''s hypothesis, analytical solutions to the N-S equation, and Poincar''s conjecture, I estimate that no one will be able to solve it in a few decades. Just keep your bounty hanging..." After some explanation, Clay also realized that this idea is indeed feasible. Immediately afterwards, he thought that since the problems Hilbert listed were called "mathematical problems of the century," then the problems he offered rewards for solving must have higher names. How about we call these problems Millennium Prize Problems, or Millennium Math Problems? You are the one who paid for it, I dont have any objection to what you call it. Jeffs eyes also shone with excitement and ambition: But I hope it will be up to me to decide what issues are included in the bounty. (End of this chapter) Chapter 832 Revealing the shape of the universe Chapter 832 Revealing the Shape of the Universe "Of course, old friend. You are the head of this institute, and this should be your job." ?Lenton Clay replied with a smile almost without thinking. but. Immediately afterwards, his tone became serious: I only have one request, and that is to be quick. The Millennium Mathematics Conference will be held next month. If we want to catch up to participate, then no matter what, we must start building public opinion before this month, otherwise it may be difficult to get an invitation. ?And Arthur Jeff frowned. As a professor of mathematics, he has shown considerable genius attributes since he was a child. ?Basically all the math exams from childhood to adulthood are full marks. ?In this way, he entered Harvard University smoothly. Then the sky fell. Soon he realized that there was a gap between genius and genius. ? As the famous saying goes - every water cooler keeper in the NBA is Michael Jordan in his or her own life. ?Every scumbag at Harvard is also a genius in his or her own life. Unfortunately, Arthur Jeff became one of them. ?Of course, it is indeed an exaggeration to say that he is a scumbag. After all, after graduating from Harvard, Jeff stayed at the school to teach and was promoted to professor. It can even be considered as crossing the threshold of mathematician. But thats all. After so many years, he has already had a clearer understanding of himself ??It is already relatively difficult to achieve a reputation in history by relying on serious academic achievements. You can only use some swords to take a more eccentric approach. Hence, he must consider whether this will be his only chance in this life. ?Millennium Math Puzzle. There is a one million dollar reward for each solution. Gimmicks are enough. Even people who dont understand mathematics can at least understand the value of one million dollars. The only problem is academia. ?If the chosen problem is not of high enough theoretical and practical significance. ?Perhaps it''s simply not difficult enough. Within two years of your release, people have cracked all three, five, and two. ?That can indeed leave a name in history. Just leaving a name in the image of a clown. Hence, one must be cautious enough in this matter. After thinking for a while, Jeff came up with a compromise plan: Anyway, its just to build momentum. Just publicize the million-dollar reward. As for the specific reward list, we can leave it in suspense and wait until the conference to announce it. This may have a better effect. "fair enough." ?Lenton Clay follows the good deeds: "But at least the quota must be determined first. I mean, set up a total of several bounty questions. You just said that there may not be 23 questions left for me now." In fact, if possible, he wanted to completely replicate Hilbert''s operation. But since the objective conditions do not allow it, then if you are only one or two less than the opponent, you will actually be inferior. Its better to have less and achieve the effect of making things more valuable when they are scarce. Thenseven? ?Jeff gave the answer quickly this time. In fact, he has already determined about five to six questions in his mind. The reason why he chose 7 is because in many European and American cultures, 7 is a number with special meaning. Since you want to speculate, you must have enough factors. "Ok, deal." ??Clay nodded: "Two days later, an announcement was issued in the name of the Clay Institute''s Scientific Advisory Board, saying that in order to promote the development and application of mathematical theory, we decided to spend US$7 million to offer rewards to seven mathematical puzzles around the world... " In the 1980s and 1990s, especially in the early to mid-1990s, the Chinese media paid almost pathological attention to foreign news. It is not the kind of thing where big things happen abroad and then you pay attention to them. But whether something happens or not, you should pay attention to it. ?Even some media with official background will report some foreign trivial matters with added interest. You can say that this is because of the unfamiliarity with the outside world after the initial opening up. Of course, you can also say that it is because of the stinky feet of foreigners. ?At the turn of the century, although thanks to Chang Haonans changes to the timeline, some Chinese peoples filter on foreign countries, especially the United States, is a bit broken. But on the other hand, due to the changes he made to the timeline, the accumulated emotions among Chinese people were also much weaker. After all, what happened in early 1996 has been a long time ago. The successful entry into the WTO at the beginning of the year has rekindled some people''s illusions about the West. In short, although the situation has improved compared to the 1990s, big things like "reward of US$7 million" still spread quickly to the country. The efficiency is comparable to that of the self-media era more than 20 years later. It''s just that Chang Haonan didn''t pay attention at the first time. ??When Tang Lintian excitedly ran to the computing center with the newspaper to find him, he only got the answer "Professor Chang closed the door to thank guests and is concentrating on solving key problems" ?After Chang Haonan brought Li Yabo back from attending the certificate collection celebration ceremony in Shanghai, they got into the computer room. ?For more than half a month, apart from occasionally going out to eat, I even slept inside. Because, the Ricci flow truncation method that has been searched for through supercomputing has produced results. Perelman successfully gave two lemmas that lead directly to the canonical field hypothesis and the long-term existence hypothesis. That is, assuming M is a three-dimensional compact simply connected manifold, it is easy to know that it is orientable, and the metric on any given M is normal through scaling, and then this normal metric is used as the initial value. , you will definitely get surgical Rich flow. Next, as long as it is proved that the solution can disappear in finite time, it can be deduced from the simple connectivity of M that M is diffeomorphic to S^3. That is [Theorem 1] in the entire proof process. ? Poincare Conjecture - Any simply connected, closed three-dimensional manifold must be homeomorphic to a three-dimensional sphere. The fact that "the solution can disappear within a limited time" is exactly the result that Chang Haonan needs supercomputing to help him find. In other words, this proof has closed the loop. ?Even compared to the series of proofs given by the previous Perelman between 2002 and 2003, it is a step further. Because, Chang Haonan also dealt with the problem of "singularity points" in Ricci flow during the proof process. It can be regarded as directly capping the skyscraper in the field of mathematics called Poincar''s conjecture. Looking at the content on the draft paper in front of him, Chang Haonan let out a long sigh of relief. ? He ??believed that Perelman, 6,000 kilometers away, should be doing the same thing as him. Furthermore, the progress is almost the same. He picked up a cup of strong tea from the side and took two sips. In the past, Chang Haonan basically only drank plain water. ??But in the past few days, he discovered that tea can indeed bring about a refreshing effect. I just picked up some from Tang Lintian a few days ago, so I got into it. It can be regarded as blocking the way for later generations... ?Taking into account the proof process of Chang Haonan and Perelman, if it were broken down, it would be possible to produce about ten or twenty papers at the level of the "Annals of Mathematics". Wrong Even though it is in the Annual Journal of Mathematics, it cannot be said to be water. In short, it leaves future generations with nowhere to go in this direction. At least for now, Chang Haonan can say with great confidence: No one knows topology better than me He didn''t come back from his thoughts until the new email notification sounded. From Perelman. How do you think we should publish the entire proof process? This is the first email between the two that does not mention any academic issues since they met. But it shows beyond a shadow of a doubt that ?The other party also succeeded. Two people cross-checked each other''s results and ultimately came to the same conclusion. ?This basically avoids the mistakes of Alfred Whitehead or Papa Chiracopoulos. ?Both of them thought they had proved the Poincar conjecture, but in a short period of time, their mistakes were discovered from the beginning of the proof. As for the issues mentioned in the email... ?In the last life, Perelman, who solved this problem alone, chose to disclose it directly to the world. To be honest, just half a year ago, Chang Haonan, who had just dabbled in the Poincar conjecture, still didnt quite understand what the other party was thinking. But now. Faced with nearly a hundred pages of proof process. Facing nearly a century of ups and downs from 1904 to the present. He actually had the same idea... ?Chang Haonan touched the keyboard with both hands. ?A string of characters appears quickly on the screen: Our work is to describe the specific appearance of the four-dimensional universe in the three-dimensional world. Such achievements that span dimensions should naturally not be bound by a specific journal. Therefore, I suggest that you skip those publishing houses and publish it directly to the whole world in a completely open form! (End of this chapter) Chapter 833 The Poincaré conjecture has been proved Chapter 833 Poincar Conjecture...has been proved Complete disclosure is easy to say, but it also requires attention to methods. ? Chang Haonan and Perelmans proof process for the Poincar conjecture, although it is simpler and easier to understand than the method proposed by the latter alone in the previous life, still requires a certain amount of topology knowledge to understand. At least 99.99% of the people on earth are definitely hopeless. Furthermore, the compiled length is at least dozens of pages. Considering that Chang Haonan also used some numerical calculation methods in the final solution process, an appendix should be added to supplement and explain the calculation procedures. The final complete version will definitely exceed 100 pages. Hence, traditional media such as radio, television, newspapers, etc., cannot be counted on. ? Can you imagine a female news anchor reading a math paper from beginning to end with a smile? Honestly, Haonan can''t. So we still have to rely on the Internet. ?? And if we talk about completely open academic websites... no doubt. arXiv. Although this was originally a website designed to satisfy researchers in the computer field, by 2000, its content had gradually included physics, mathematics, biology and other subjects, and it had also gained considerable recognition throughout the academic community. Spend. ??Of course, in addition to arXiv, the same document will be uploaded to the official websites of Beijing Hang University and the Skeklov Institute of Mathematics at a later time. ??When Chang Haonan sent this proposal to Perelman via email, he quickly received a reply from the other party. Different from the usual concise and to the point. This time, maybe its because he finally realized his long-cherished wish for many years, or maybe its because of the joy of meeting a close friend. In short, Perelmans reply this time is not only long, but also contains a rare excitement between the lines. . Actually, it is also my wish to publish the results directly through arXiv instead of a certain mathematics journal, but considering that this historic result was completed by the two of us, I decided to fully respect your opinion... [I am very happy to see that you have made the same decision as me. This shows that we are not only similar in academic level, but also in academic pursuits. For me, this joy is no less than unraveling Poincar. The theorem itself] ?This email once again confirmed Chang Haonans previous thoughts Perelman was not a loner, but he rarely met anyone with whom he could communicate as an intellectual equal. Then...get ready to submit your article... ?Chang Haonan closed the email page and began to organize the contents on the draft paper into the computer bit by bit... Three days. Its another three days. ?Chang Haonan finally completed the last inspection and uploaded the document in .pdf format to the website. Compared with many magazine submission websites that require you to copy and paste content onto a web page, arXiv can upload files directly, which is quite user-friendly. Then Click to submit! arXiv does not have a peer review process, so uploaded documents will be seen by researchers who pay attention to related fields as soon as possible. "ha-" After doing all this, Chang Haonan let out a long yawn. Fortunately, when we were building the computing center, a temporary dormitory was specially set up on the same floor as the computer room. Otherwise, I might have to sleep on the floor during this period. But even so, I cant sleep well even if I have something on my mind. In this case, the shaft has been working for more than half a month. Even he felt a surge of exhaustion the moment he relaxed. ?Before leaving the computer room, Chang Haonan refreshed the web page one last time. ??I found that in less than a minute, the number of readings exceeded 100. Obviously, although the corresponding time in Europe and the United States is either early morning or midnight, such a blockbuster paper will obviously not lack attention... Chang Haonan, who came out of the computer room, was originally going to contact Zhu Yadan directly and ask the latter to take him home. In the end, I met Tang Lintian in the corridor who had come to visit him for the countless time. Professor Chang...Chang? Liu Chenchen was repeating to Tang Lintian what Chang Haonan had said before "retreating", just like before, not to let anyone disturb him. As a result, I was only halfway through my words when I saw Chang Haonan coming out of the work area on the other side. What does Professor Chang... Tang Lintian opposite was actually just stopping by after lunch, so he didnt have much hope. For a moment, I didnt even realize what Liu Chenchen was talking about. But he soon noticed that the other partys eyes were focused behind him. So he turned around suddenly. Then his pupils shrank: Professor Chang, Ive really looked forward to you ?Tang Lintian strode forward and walked to Chang Haonan: Youve been out of contact for more than half a month. What if something urgent happens... Before he could finish speaking, Chang Haonan waved his hand tiredly: If someone calls the red phone in my office, Teacher Liu will notify me. "Since the phone didn''t ring, it means the sky won''t fall..." After finishing speaking, Chang Haonan turned to look at Tang Lintian next to him: Principal Tang came to see me this time... "oh" ??Tang Lintian was stunned for a moment, then replied with a smile: "It was last week that I read in the newspaper that some mathematical institute in the United States was offering a reward of US$1 million each for seven unsolvable mathematical problems. I wanted to come over and ask you, you and Perelman The professor was trying to solve the Poincar conjecture whether it might be inside, but he didn''t see you several times in a row." Later on, I almost developed a habit of taking time to come over every day to see if you come out...I even forgot to take the newspaper..." There is a legend that if you do something for 21 days in a row, you can form a habit. ?Then Tang Lintian is indeed fast now... At this time, Liu Chenchen also intervened: I still have that newspaper here, if I need it... "Need not." Chang Haonan shook his head slightly: The computer room also has computers that can connect to the Internet. I am just in seclusion, not cutting off contact with the outside world. I know the seven major mathematical problems of the millennium. In fact, apart from contacting Perelman during this period, he was basically in a closed state. It was only when Tang Lintian mentioned it that he remembered such a thing. But its too troublesome to explain, so Ill just say I saw it online. The Poincar conjecture If nothing else happens, it should be inside. ?Chang Haonan''s tone was quite determined. Tang Lintian, on the other hand, was immediately dazzled ? ?The Millennium Mathematical Puzzle, with its $1 million reward, has indeed had a considerable impact. Even one day''s news network reported the matter in three sentences in a briefing segment. ??If before the heat is completely over, a professor from Beijing Hang University solves one of the problems... ?Thinking of this, he immediately asked: "Then...after you solve this problem, will you be...the first one..." Tang Lintian pointed at Chang Haonan and then outside. His words were already a bit incoherent. ?Just thinking about that scene, the corners of his mouth couldn''t help but curl up. ??If there weren''t two other people in front of me, I would probably have to perform a dance. ?However, what Tang Lintian never expected was... No need to wait any longer Chang Haonan covered his mouth and yawned: Weve solved it ?His tone was so flat, as if he was saying, "I ate two fried dough sticks and drank a bowl of soy milk this morning." So much so that Tang Lintian didnt even react at the first moment. "ah?" Solved...what? But in an instant, he realized the answer to his question. "etc" ?Tang Lintian was shocked: You meanPoincar Just now he was already working very hard to restrain himself. ??Now that Chang Haonan is so frightened, his hands and feet won''t obey his orders at all. "Yeah...the paper has been posted to arXiv without going through any journal, so it can be read now." Chang Haonan glanced at Tang Lintian who was startled and trembling all over with sleepy eyes: Let me rest for two days, then I will send you the manuscript of the paper and put it on our colleges website After finishing speaking, regardless of Tang Lintian who was speechless and unable to make any movements, he staggered towards the door... After a long time, Tang Lin finally came to his senses. Secretary Liu, do you still remember when the Millennium Mathematics Conference was held? May 24th. Liu Chenchen replied almost without thinking. She had known before that her boss was solving a mathematical problem. Although as a liberal arts student, she didnt know what it was, she still paid close attention to the relevant news. Thenwhats the date today? ?After asking this question, the two of them turned their heads and looked at the electronic perpetual calendar hanging at the end of the corridor. May 24, 2000 (End of this chapter) Chapter 834 Millennium Mathematics Conference Chapter 834 Millennium Mathematics Conference At almost the same time Chang Haonan walked out of the computer room and met Tang Lintian. Paris France. A conference that has attracted almost the attention of mathematicians from all over the world is being held at the Collge de France. People all like a sense of ceremony. Mathematicians are no exception. The last millennium, or in other words, the last century starting from 1900, was undoubtedly the golden age of scientific development. It is hard not to look forward to where science will lead mankind in the new century and millennium that is about to begin. Mathematics, as the Queen and Servant of Science, has naturally become the center and focus of this great discussion. This Millennium Mathematics Conference is exactly the response of the mathematics community to this. However, compared with common academic conferences in the past, todays situation is slightly different. ?In addition to mathematicians, there are hundreds of thousands or even millions of people around the world who are also paying attention to this. ?But what they focused on was not the meeting itself. It is a list that will be announced at the meeting. Seven major mathematical problems of the millennium. ?Since this reward was first disclosed by several media outlets a month ago, it has quickly aroused heated discussions around the world. With the subsequent series of guidance, the popularity of the topic has not even decreased but has increased. It has now begun to gain momentum that has overshadowed the Millennium Mathematics Conference itself. In fact, when the Clay Institute of Mathematics proposed to announce the "reward list" at the meeting, the conference committee refused at first. ?Although many mathematicians were already gearing up to win a million-dollar bounty at that time, everyone was still a scholar, so they had to be more reserved. ?However, in the end, it still failed to withstand the effect of money ability. Considering that the research direction of several members of the conference group is number theory, and the field of number theory involves a series of well-known mathematical problems such as Goldbach''s conjecture, Riemann hypothesis, BSD conjecture, etc., which are likely to be shortlisted... ?This result does not seem surprising. In short, after the opening ceremony and the opening speech entitled "The Importance of Mathematics", what is currently going on is the much-anticipated announcement of the list. ?In the audience, Maxim Kontsevich, who was about half an hour late, quietly sat next to the British mathematician Andrew Wiles: Perhaps I havent missed a crucial moment? "No." ?Wiles shrugged: They are still advertising their institute. Compared to a mathematician, Koncevich is closer to a theoretical physicist, and his research direction is obviously impossible to be included in the list from the beginning. ?And Andrew Wiles studied number theory, and all his life''s study was to conquer Fermat''s last theorem. Originally, this should be one of the popular candidates today. ?The only problem is that Wiles had already completed the proof and publication of Fermat''s Last Theorem from 1993 to 1995. Suffered the loss of moving too quickly. So, as two people with no hope of participating in this competition, last night they each made a list of their guesses for the seven mathematical problems of the millennium and made a bet. Get ready to see who has a higher accuracy rate. And soon, the result will be revealed. By the way, where is the student you brought here? ?Concevich suddenly asked: This is the one who told you yesterday that he was studying the ABC conjecture. You mean Rastega Arash? ??Wiles'' eyes were still fixed on Arthur Jeff, who was speaking on the stage. The latter is still introducing content about the history of mathematics at this time, but compared to the naked propaganda just now, this part is closely related to the theme of today''s conference, and it is also an area of ??interest to many mathematicians, especially senior mathematicians. He forgot to hand in the report yesterday and was punished by me to watch the live TV broadcast in the hotel room this morning, so he didnt come to the scene..." When Arash''s name was mentioned, a smile appeared on Wiles'' lips involuntarily. Obviously, he thinks highly of his student. Perhaps it is for this reason that particularly strict requirements are put forward. According to the meeting schedule, there is no substantive academic content in todays morning session. Even if I dont come, it will be a pity at best and it wont really delay anything. ??Konsevich actually just asked casually, and at this time, he had already turned his attention to the curtain in front of the venue... at the same time. In a hotel about a few kilometers away from the venue. ?? Rastega Arash, who was just mentioned by the two men, was looking at a TV and a laptop at the same time with a grimace on his face. On TV, naturally, there is a live broadcast of the Millennium Mathematics Conference. On the computer screen, there are several websites open at the same time Like many doctoral students, he is also responsible for helping himself and his supervisor keep track of the latest research progress of his peers. In fact, it was because he failed to submit a progress report yesterday that he lost the opportunity to enter the venue this morning.????So now he can only do two things at once. ?Of course, the main attention is still on TV. The first of the seven major mathematical problems of the millennium...the NP-complete problem! Now, lets invite Professor Alexander Rezporov to come on stage and introduce the basic situation of NP-complete problems "ah-" ?Arash grabbed his hair hard and let out a cry: The opportunity to witness history... just slipped away... Watching this kind of thing through a TV screen and watching it live are two completely different feelings. ?So, Arash turned down the TV sound slightly and prepared to divert his attention through work. He first made himself a cup of coffee to refresh himself, and then sat back in front of the computer. Nextcheck out arXiv ?Arash decided to do some light work first. Since arXiv does not have a peer review mechanism, the articles on it are mixed, ranging from preprints released by big guys before publishing formal papers to garbage that civilians cannot bear to read. But in general, the level is still not as good as serious mathematics journals. It also looks relatively easy. Sometimes it doesnt even require thinking at all. He thought this while opening the website. The first thing that catches the eye is Proof: Any simply connected, closed three-dimensional manifold must be homeomorphic to a three-dimensional sphere How do you feel that I have seen it somewhere ?Although his research direction is number theory, this title still feels a bit familiar to Arash. "etc" He stopped drinking coffee: Isnt this an expression of Poincars conjecture? ?Thinking of this, the corners of Arash''s mouth couldn''t help but curl up: Let me see which civil science company claims to have solved it However, he was only halfway through his soliloquy when he saw the author''s name. ?CHANGHaonan. Havent heard of this. but ?GrigoryPerelman. ??Have heard of this before. Not Minke? Or is it just the same name? Or is it a fake name? In an instant, thousands of thoughts rushed through Arash''s mind. To be fair, he cannot be entirely blamed for this. Number theory, because it is relatively less abstract, has always been the most popular field among civil sciences. There is almost no one. ?Especially for those who claim to have solved Goldbach''s conjecture, they have to make several hundred, if not thousands, every year. In this environment, it is quite normal for Arash, who studies number theory, to first react when he encounters Minke. But in the field of topology where Poincar''s conjecture is located, the situation is much better. After all, most people dont even understand the basic concepts and have no room to develop. ?However, in any case, Perelmans name is still on it. ?Arash still clicked on the author''s details to take a look. Then I found out WTFis that really Perelman? The remaining half cup of coffee was spilled with a shake of his hand. ?However, its not needed anymore. When it comes to refreshing your mind, this article is much better than coffee. In an instant, Arashs tiredness disappeared. ?After being stunned for a few minutes, he turned his attention back to the TV. At this time, Arthur Jeff has revealed the name of the second item of the seven puzzles. ?Hodges conjecture. ?But this time, Arash no longer felt pain or envy at all What kind of history can a small thousand-year mathematics conference count? I am the one who really witnessed history! (End of this chapter) Chapter 835 Reveal the seven major problems Chapter 835 reveals seven major problems As a doctoral student studying number theory, Arash himself, and even his teacher Andrew Wiles, did not have the ability to identify whether the content of this paper was valid. But this is not important. No matter what. Perelman, and of course one other person, jointly claimed to have proved the Poincar conjecture. This is big news in itself. A big news that can shock the entire mathematical world. ?Thinking of this, Arash no longer bothered to watch the introduction of Hodge''s conjecture on TV. He used the fastest operating speed in his life to download the paper from the website, then opened it and took a look at the length The common length of contemporary mathematics papers is around 20 pages, and some longer ones may reach 40 pages. It is more convenient to print it out and read it. But since what others have proved is the Poincar conjecture, it certainly cannot be inferred according to common sense... Obviously, Arashs concerns are correct. Just loading the PDF file took almost half a minute. ??And when he pulled the progress bar on the right side of the document to the bottom and saw a three-digit page number, he almost spread his hands and lost his breath. ??If this length were printed, it would be almost a book. And it is a size that cannot fit on a floppy disk. Alash turned his head again and glanced at the TV screen. The introduction of the second result is now coming to an end. ?According to this calculation, the morning meeting should last about another hour... The hotel is about 8 kilometers away from the venue in a straight line, and the distance may be about 12 kilometers... After some analysis, he finally made a decision Turn off the TV. Unplug the power supply. Put your laptop into your computer bag. Change clothes ?Only five minutes later, Arash arrived at the door of the hotel and stopped a taxi. To the French Academy of Sciences. As soon as he got in the car, he hurriedly said to the driver: The French Academy? Its not easy to get there. ??The driver glanced at the anxious-looking Arash in the rearview mirror, put the gear into gear, and started the car slowly: It was downtown and there was an academic conference going on, so there was a lot of traffic. The Academy of Sciences is located on the south bank of the Seine River, across the river from the Louvre. Combined with the French-style urban construction style of Paris, it is indeed hellish for driving. "I know." ?Arash just ran all the way from the elevator to the parking lot, and he is still out of breath: I just want to attend that meeting, so please hurry up, the sooner the better. ?This time, the driver looked back at him. Okay, then sit tight. As soon as he finished speaking, Arash felt a huge acceleration coming from the back of the seat. Hey, your name isnt Daniel Morales ??But his complaints were directly drowned in the howling wind outside the window... The other side. In the venue of the French Academy of Sciences. The first six of the seven major mathematical puzzles have been revealed. NP complete problem, Hodge conjecture, Yang-Mills existence and mass gap, existence and smoothness of N-S equation, BSD conjecture, Riemann hypothesis. Each item is of central importance to the development of mathematics. In fact, the guesses given by Maxim Kontsevich and Andrew Wiles were highly repetitive. So far, the two of them have only guessed one item wrong. In this regard, it is this last one that determines the outcome of their bet. Kontsevich believes that considering the difficulty and academic value of these problems, there is a high probability that the Poincar conjecture will be the finalist. Wiles speculated that the Clay Mathematics Institute started campaigning nearly a month in advance, and its core goal must not only be to encourage academic development, but also to attract some attention outside of academia. In this case, there must be one among the seven major problems that everyone is familiar with. So, although the scientific significance of Poincar''s conjecture is obviously greater, Goldbach''s conjecture still has a greater chance of occupying the last spot due to its popularity. Then, next, comes the final piece of the Millennium Mathematical Puzzle. ?On the stage, Arthur Jeffs emotions have also reached their peak ?Today, he is alone. Having stood on the podium at the Millennium Mathematics Conference for nearly two hours. ??Although the content of the story is not directly related to the research results, it is enough for him to leave a place in the history of mathematics. ? Whenever future generations mention the seven major mathematical problems of the millennium, the name Arthur Jeff will inevitably be mentioned. Thinking of this, he took a deep breath, and then slowly glanced at the nearly a thousand spectators sitting under the stage, as well as a dozen cameras at different angles. ?Then he turned around and slowly tore off the last strip of white covering covering the marking board. ?PoincarConjecture Poincars conjecture! ??Consevich and Wiles are obviously not the only ones who have just been speculating on what this last item is. In fact, when Jeff walked back behind the podium, he had already noticed the expressions of joy or regret in the audience. Its not that they all made bets with others. What is more important is the right to speak. After all, not all scholars are as famous in their fields as Koncevich and Wiles. Most people still have to worry about research funding. In most cases, the people in charge of funding are not mathematicians. It is a layman who is easily influenced by this kind of public opinion. ?Therefore, if your research field is included in this influential list of Millennium Problems, it will undoubtedly be a great benefit for future funding applications. This is also the main purpose of Langton Clay. ?Of course, one more thing is... People must always have dreams. ?What if you happen to solve this problem by yourself? Therefore, when the name of the Poincar Conjecture was revealed, many researchers and professors who specialize in topology smiled happily. ?Jeff paused for a few seconds to allow the first wave of emotions in the audience to be fully released. Then he spoke again and introduced the basic situation of Poincar''s conjecture. After all, in addition to experts, there were actually quite a few students present. Besides, the TV broadcast is open to the whole world. If we stretch a rubber band around the surface of an apple, we can slowly shrink it to a point without tearing it or letting it leave the surface. However, if we imagine the same rubber band being stretched and retracted on a tire tread in the appropriate direction, there is no way to shrink it to a point without tearing the rubber band or tire tread. In this case, we think that the apple surface is simply connected, but the tire tread is not. About a hundred years ago, mathematicians had known that a two-dimensional sphere could essentially be characterized by simple connectivity, but when Henri Poincar proposed that a three-dimensional sphere, that is, a four-dimensional space with unit distance from the origin When all the points satisfy the corresponding description, the problem becomes extremely difficult..." For nearly a hundred years, Poincars conjecture has been a goal that scholars in the field of topology strive for, and is known as the code to decipher the shape of the universe ? Kontsevich and Wiles were both winners of the Fields Medal in 1998, so they naturally did not need to consider whether they could find sponsors for their projects. Therefore, after the last name was revealed, Wiles was willing to admit defeat, took a ten dollar bill from his pocket and handed it to his old friend. I must admit that I may have been somewhat biased against the Clay Research Institute. ??Wiles said: It seems that although they like to create momentum, at least at the academic level, they still talk about some principles..." For the Poincar conjecture, Jeff did not ask Gao Ming to introduce it like the previous questions. Because his own research direction is related to the field of topology. ??Although it is probably out of the question to prove the Poincar conjecture, it is still fine if we just briefly talk about the concept. With the end of his introduction, the announcement of the entire Millennium Mathematics Problem has also come to an end. (End of this chapter) Chapter 836 The seven major problems became six? (10,000 per day) Chapter 836 The seven major problems have become six? (10,000 per day) As usual, there is a question and answer session at the end. The audience raised their arms in unison ?Perhaps professors are more reserved in this situation. But students dont care. ??And there are many students who are encouraged by their tutors to ask questions. Soon, a young woman sitting in the third row was selected by Jeff to be the first to speak. ? Judging from her age, she may not even have graduated from a bachelor''s degree. Professor Jeff, regarding your reward, can you get it as long as you solve the problem? Or are there other requirements? In fact, this is an issue that most people are concerned about. Of course there are some specific requirements. ?Jeff motioned for the other person to sit down first: The specific terms will be listed in detail in the documentation on our institutes homepage. I can summarize the two more important points here. First, the results cannot be mailed directly to our institute, but must be published on a widely recognized academic platform, and the final conclusion needs to be given by the mathematics community. You know, the strength of the institute is limited, and it is impossible to spend all its energy on dealing with letters from folk mathematics enthusiasts. Hearing what he said, the audience burst into laughter. ? Who is a serious mathematician, especially one who is engaged in number theory, who has not received dozens or hundreds of letters from top-notch people claiming to have proved Gechai or the Riemann hypothesis? ? Even after Andrew Wiles proved Fermat''s Last Theorem, people continued to send letters to mathematical institutes in various countries, claiming that his proof method was wrong, or simply did not know that such a thing was happening. So, it is reasonable to set some thresholds. After a short pause, Jeff continued: Second, the award will be officially awarded at least one year after the results are published. In contrast, this one elicited little response Solving problems at the level of the Seven Problems is often accompanied by the emergence of a new theoretical framework, resulting in papers that must be extremely long and extremely difficult to understand. One year The review may not yield results. After answering the first question, Jeff called up the second young man. Professor Jeff, I would like to know, according to your estimate, how soon will it be possible for the first person to receive this bonus from your institute? ?This question played right into Jeff''s heart, so much so that he even doubted whether the other person was a hired agent hired by his boss. Thats a good question. ?Jeff replied: "In fact, the reason why we offer a high reward of US$1 million for each problem is not only because the problems themselves are of profound significance to the development of science, but also because in the process of solving these problems, mathematicians There will be some by-products that are also of great value..." "Take Poincar''s conjecture as an example. Although it is generally believed in the mathematical community that geometric topology methods seem to be more suitable to solve this problem than direct topology solutions, in the process of trying to solve it, direct topology There has still been tremendous development. In short, compared to the final ownership of the US$7 million, we hope that everyone will pay attention to science and mathematics..." Of course, if you definitely want to get an answer, then I think an optimistic estimate might be 10-15 years In the audience, Andrew Wiles listened to Jeff''s talk and nodded slightly. What the latter said just now, whether it was sincere or for propaganda purposes, has indeed greatly improved his perception of the other party. As for that 10-15 year estimate ?Wiles just laughed it off. As for mathematical things, no one can give an accurate timetable. Maybe next month, maybe next century. Who can say for sure? At this time. A familiar voice suddenly sounded from behind him: Teacher? Teacher! ?Wiles was stunned for a moment, then turned around. ??However, he discovered that it was Arash who was "punished" by himself and banned from attending the meeting in the morning. The latter''s face looked a little pale for some reason, as if he had just been seriously ill. Arash? ? At this time, Koncevich, who was next to him, also turned around and saw the young man he remembered at a glance yesterday, and couldn''t help but joked: You may not have come at the right time, and we have already entered the question-asking period. After hearing this, Arash raised his head almost subconsciously, and then his whole body trembled suddenly: The seventh itemisPoincars conjecture? Thats right. ?Wiles frowned slightly, but nodded. ?Although he didnt care about the $10, he was still a little upset about losing the bet: What do you want to say? Old...Teacher. Arash gasped a few times: I just saw a paper on arXiv, saying that the Poincar conjecture has been proved! arXiv? Compared to Arash who was a little over-excited, Wiles'' reaction was obviously much calmer. Although arXiv has gained good recognition in the academic community, it is definitely not able to compete head-on with leading journals. ?In disciplines such as computer science and biology, the emergence of new ideas and the production of papers are so efficient that regular review can''t keep up with the rate of innovation of results. Therefore, it is very important to take advantage of arXiv first. But the productivity of mathematical papers from ideas to papers... Sometimes it is calculated in terms of centuries. ??More importantly, Arthur Jeff on the stage just made a joke about Minke. ?? And websites like arXiv, which can be published without approval, are undoubtedly the places with the most civil sciences. ?Wiles even suspected that someone might have played a prank after seeing the live broadcast. However However, the co-authors of this paper are Grigory Perelman and a Chinese named ChangHaonan. ?Arash''s answer made Wiles, who was sitting still, almost jump up. Are you sure itsthat Perelman? Alash nodded: I specifically clicked on it and looked at it, and Im very sure. While speaking, he had already taken out his laptop. ?But before he could press the power button, Wiles took it away. There is no trace of the calmness of "everything is under control" just now. Teacher, you... Arash originally wanted to ask, teacher, as a number theorist, can you understand the proof process of geometric topology? ??But after thinking about it, I felt that if I really asked this question, the relationship between teacher and student would probably be over. Thats why I said two words and then closed my mouth. Fortunately, Wiles had no time to care about what his students said at this time. He took out his glasses from his pocket and put them on, then opened the PDF that Arash had downloaded to the desktop. Its really Perelman In fact, when I read the first page of this article, most of my doubts about Minke have been dispelled after all ?Wiles has never seen a civil science student who can write such a clear paper format... This ChangHaonan, how come I seem to have heard of it somewhere... He looked at the message from another author and said to himself: Beijing University of Aeronautics and Astronautics Koncevich, who was next to him, suddenly said: In the Annals of Mathematics last December, he published a paper proving two lemmas that have been pending in the field of differential geometry. After being reminded by an old friend, Wiles also had an impression: "It''s him?" Wiles still remembers chatting with a colleague who studied topology about that issue of the Annual Journal of Mathematics. ?Although the core of the topic at that time was not Chang Haonans paper, the other party still inadvertently mentioned that the result might promote the proof of Poincars conjecture. but ??Isn''t this push too fast? ?He was still pondering just now, saying that it would take him a month at the earliest or a century at the earliest to be able to solve any of the seven previous problems. I thought I had left myself enough room for maneuver. The results are good guys. It would be interesting if the proof process in this paper was confirmed. Seven major mathematical problems of the millennium. How to use it for one month? This is not even an hour. The poster of the question is still standing on the stage. It will become the Big Six... (End of this chapter) Chapter 837 Luxurious review lineup Chapter 837 A luxurious review team ?Wiles, who didn''t take it too seriously to watch the excitement, suddenly felt a little impatient. There is a high probability that he will not be able to understand this paper. So you need to find a professional. ?Even so-called professionals cannot understand it right away. But at least we can confirm whether there are any obvious omissions. Of course, Perelman cannot be a civilian. However, there have been many cases in history where mathematicians thought they had solved an important problem, but were found to have made mistakes very early on. Especially judging from the extraordinary length of this paper, I am afraid it will involve some new theoretical frameworks. Generally speaking, thanks to the great development of academic journals and the Internet, even if today''s mathematicians need to invent the wheel from scratch, they still have enough opportunities to take out the wheel separately for everyone to see, so as to avoid "building a car". Only then did I realize the wheel was square." But the situation before us is obviously unusual. ?According to Wiles''s speculation, the two authors may have been working hard in this direction to prove Poincar''s conjecture for many years. The paper in front of me should be the sum of all their work. As for the previous article in "Annals of Mathematics"... Most likely, it was just published casually so that the author named Chang Haonan would not appear too abruptly. ?Hmm, that must be the case. ?Thinking of this, Wiles looked around and asked Koncevich next to him: I remember...Richard Hamilton came here today, right? When he opened the paper just now, he noticed that the concept of "Ricci flow" was mentioned many times in the abstract section at the beginning. Even though Wiles did not study topology, he knew who was an expert in it. I think Ive seen him on the other side of the venue before. Concevich replied. Lets go and find him. Wiles didn''t care that Arthur Jeff was still answering questions on the stage at this time. He immediately left his seat with his laptop and pulled Koncevich from the middle aisle of the venue to the other side. Alash was a little confused by the scene in front of him, but he could only choose to follow his mentor quickly. Fortunately, there were thousands of people attending the meeting on the upper and lower floors today, and everyones focus was on the front, so not many people noticed that the two dignified Fields Medal winners were acting like thieves. , the cat crouched and ran around in the middle of the venue... ?Concevich has a good memory. Under his leadership, it didnt take the three of them long to find Hamilton, who was sitting in the second row on the right side of the venue. ??The latter was listening happily to Arthur Jeff''s explanation of why the famous Goldbach''s conjecture was not included in the seven major problems. He was obviously in a good mood. After all, I have always firmly believed that using the Ricci flow equation, it will be possible to prove Thurston''s geometrization conjecture and Poincar''s conjecture. Professor Wiles? Professor Koncevich? Hamilton subconsciously wanted to get up. These two still have a status of over 100 million in the world of mathematics. Especially Andrew Wiles. Although some people believe that his method of proof does not meet Fermat''s description of "exquisite", so there may be other ways to prove Fermat''s last theorem. But in any case, this problem that lasted for 350 years and stumped Gauss, Euler, Hilbert and other big guys finally ended in the hands of Wiles. This alone makes him one of the most influential mathematicians of his time. ?However, Wiles had quick eyesight and quick hands and quickly stopped Hamilton''s movement: Professor Hamilton, this morning, just now, to be precise, my students saw a paper. ??He said, opening the laptop and placing it on the small table in front of him. ?Hamilton thought to himself that he couldn''t wait a while to read the paper, so he had to come to me at this time, but when he turned around, he saw the title of the paper. "Any simply connected, closed three-dimensional manifold must be homeomorphic to a three-dimensional sphere" ? ?He was just thinking about the proof of the Poincar Conjecture, and now a paper comes out saying that it has been proved? Which publisher received this submission? Hamilton asked almost subconsciously before looking at the specific content. Wiles looked at Arash beside him, and then shook his head: Its not a publishing house, its the arXiv website. Maybe youve heard of it. Of course I know this, the upper left corner of the document is marked with the URL of the website. Hamilton pointed to the computer screen, and then continued: I mean, when the author uploads the article to arXiv, he must also submit it to a magazine, right? ?There was a moment of silence. Obviously, no one can give an answer. ? It is already abnormal for such a paper to appear on arXiv. It is normal for other more abnormal things to happen later... ?Hamilton had no choice but to scroll down the document. Then, I saw a familiar name. Not Perelman, but Chang Haonan. About half a year ago, he saw this author''s article while reviewing for the "Annals of Mathematics". ?Hamilton can even clearly remember the content of the article. ?One of the conclusions is that topological surgery using Ricci flow can be used to construct geometric structures, thereby changing irregular manifolds into regular manifolds. ?That conclusion played a considerable role in promoting his status in the academic circle. Since Chang Haonan chose the Annual Journal of Mathematics for submission last time, it seems reasonable to continue to choose the Annual Journal of Mathematics this time, even if it is based on inertia... ?Hamilton even wanted to take out his cell phone and call Mikael Lagerstedt to ask if there was such an article. ?But in the end I endured it. On the one hand, we are all scholars after all, so we should be more reserved. ??More importantly, he has now seen the paper. The publisher, no matter which one it is, has obviously not seen it yet. Otherwise, for such a big matter, we should have directly contacted well-known scholars in all relevant fields. ?This means that compared to his peers such as John Morgan, Bruce Kleiner, and Valentin Benahou, he has already won at the starting line. When an editor saw it and found someone to review it, as a representative of the geometric topology line, he saw the paper earlier than others. Chance to lead the review team. There is no need to add extraneous details. With this thought in mind, Hamilton returned his attention to the computer screen. ??This is how academic work is, the author of the paper only needs to immerse himself in scientific research, but the reviewer has many things to consider... ?However, it didnt take long. Hamilton''s smile gradually froze on his face ??Although Ricci flow was mentioned many times in the abstract and introduction, and even his achievements in introducing Ricci flow into topology were cited,... Its not the same again. How is it, Professor Hamilton? ?Looking at Hamilton, whose expression was changing unpredictably, Wiles asked. Somethings wrong ?Hamilton muttered. Wiles was stunned for a moment, thinking that the other party had discovered the error in the paper: Alas...surely there is still a problem... Although it was expected, it is still a bit of a pity. First of all, I couldnt really witness history. Secondly, I didnt have the fun of seeing the seven major mathematical problems turn into the six major problems live. Hamilton, however, shook his head: Its not the paper that has a problem. Three doubtful looks were cast at him. Its me who has a problem Ah? ?Wiles was a little confused by this sentence: Arent you the founder of Ricci flow theory? Hmm I used to think so too. ?Hamilton is still staring at the screen intently: But Im not sure now Whatwhat do you mean? Consevich, who had not spoken a word just now, looked puzzled. Hamilton shook his head in distress: "Although Ricci flow is also used, their ideas...are completely different." Look here, they built the Ricci flow into Lindelof space. And here, we perform surgery on the Ricci flow to find and eliminate the singularity before it occurs. This is what I have been working on for the past ten years..." In just the first five pages of the paper, Hamilton listed a dozen key points. They are all differences between the papers ideas and existing theories. It can be said that this is a completely different theoretical framework. "but" ?Wiles frowned: The speed at which you turned the pages just now... was like reading a paper written by yourself. I mean, if they really proposed a completely new theoretical framework, shouldnt it be very difficult to understand? Hearing this question, Hamilton finally raised his head: If Perelman had written this paper alone, I believe that would be the case. But another author, Chang Haonan, I discovered during my last review that the ideas of the paper he wrote are very different from ordinary people, but every step can be written in a place that is not easy for us to understand. ?Concevich was also surprised: Can there be such a person? ?Of course he knows that understanding something yourself and letting others understand it are two completely different things. In fact, one of the major problems currently facing the mathematics community is that as research fields continue to be subdivided and the depth of research in a single field increases, it is increasingly difficult for top mathematicians to understand the results achieved by others. For a truly influential paper, the review cycle often stretches to several years. It may not even be possible to judge it. The ability of Chang Haonan described by Hamilton is completely refreshing in today''s context. Anywaywhat do you think is the probability that they are right? ??Wiles asked. Hamilton did not answer immediately, but just lowered his head, rubbing his brows and closing his eyes to think. Im afraid no one dares to draw a conclusion on this matter alone. ?After a long time, he finally opened his eyes again: Need to ask other peoples opinions. "who?" Sergey Novikov, Michael Friedman, Simon Donaldson, Jeff Chigurh, Valentin Benahou He said nearly ten names in a row. Wiles was secretly frightened when he heard this. Basically covers all topology experts of the previous generation and this generation. Including three Fields Medal winners. But its not over yet. After a slight pause, Hamilton suddenly turned his head: In addition, their proof mentioned a lot of physical concepts such as energy, entropy and temperature, so we need a mathematician with a background in theoretical physics. Professor Koncevich, I hope you can join us... Okay, now its four ?Wiles thought to himself: Maybe theres a fifth one (End of this chapter) Chapter 838 I changed the academic rules Chapter 838 I changed the academic rules When things have developed to this extent, whether it is from a purely entertaining level or from an academic impact level, it is necessary to pause the agenda. ?So, Wiles directly called a staff member next to him and said something to him. Then, the latter quickly came on stage and stopped Arthur Jeff''s question and answer session. ?Just when most of the audience felt a little confused, the lights in the main venue, which had originally been turned off to allow the audience to see the projector clearly, turned it on again. There was some commotion at the scene. Professor Jeff. Wiles walked straight to the stage and took a microphone from the staff next to him: I would like to ask, when does your reward for these seven questions start to be considered effective? Jeff didnt know what exactly happened at this time, but on the one hand he had to follow the arrangements of the venue staff, and on the other hand Andrew Wiles, as a big boss of the Philippine Awards, the questions he asked could not be ignored. Legally speaking, at the same time as the opening of this Millennium Mathematics Conference, the agreement signed by Mr. Langton Clay, the patron of our institute, officially came into effect. "very good." Wiles showed a bright smile: Well, I have something to announce to you. ?He said and turned to face the audience: Just now, specifically, about an hour and a half ago, someone announced that he had successfully proved the Poincar conjecture. One sentence. The originally turbulent scene instantly became silent. ?Nearly everyones eyes were either shocked, dull, confused, or doubtful... turned to Wiles, who was holding a microphone on the stage. Perhaps to dispel everyones doubts, he then added: Now, my colleagues are assembling a team to verify the proof process by It was as if a switch had been turned on. ?The scene suddenly boiled like a frying pan ??Although it is not as popular as the field of Gechai, some people claim to have proved the Poincar conjecture, which is still not a big deal. But it is another matter to be able to enter the formal verification stage. Whats more, the person on the stage is still Wiles. A famous problem in mathematics was solved by this big man. ?Even if it cannot be concluded that the proof must be correct, it at least shows that it is enough to be taken seriously by the serious mathematics community. That is to say Seven major mathematical problems. One hour after publication. Could it be cracked by...? ?Arthur Jeff, who was standing behind Wiles, swayed slightly. He felt that the whole world had become gray. ?This is a live broadcast. For the whole world! ? I just vowed that if I am optimistic, the first problem may be solved in 10-15 years... Actually, this is not a big deal. 10-15 years is considered to be a satisfactory period. ??Even if you asked Wiles to answer that question on stage himself, he would definitely give a similar answer. As long as it can be slightly delayed for a year. Even half a year. No one would really make any use of his words. But today this is such a coincidence. He didnt even get off the stage... As soon as the front foot finished speaking, the back foot was slapped in the face. ?For a moment, he even hoped that Wiles''s proof was wrong... ?Besides Jeff, another person who was a bit broken was the convener of this meeting, Jean-Christophe Yorkz, who is also a big boss of the Philippine Prize. Because the meeting was in the afternoon, it was immediately suspended. Out of a total of four planned speakers, three chose to participate in the review on the spot. ??What else is there to do? Lets wait until the review is over. As for whether it can be restored... That depends on the review efficiency. ??If the review is not until next year, it would be a bit strange to hold the Millennium Mathematics Conference in 2001. Perhaps it can be renamed the New Century Mathematics Conference and held next? Yorkz looked at Wiles not far away, feeling a little helpless. ?However, its not enough to be angry. After all, if the final confirmation process is correct, neither the organizers nor the participants of the New Millennium Academic Conference will be at a loss. It can even be said to be earned with blood. After all, the millennium will definitely exist in another thousand years. But it is not necessarily the case that "an announcement of a bounty will be followed by someone to prove it". On the other hand, as Wiles had guessed before, the number of Fields Medal winners on the review team was finally fixed at five Requires a mathematician with a background in theoretical physics. This request was tailor-made for Edward Witten Whats more, his research fields include Morse theory and topological quantum field theory, and he is also an expert in the field of differential topology. For Witten, who is in his prime, there is obviously no reason to miss such an opportunity to witness history in person. So, as soon as he got the news, he crossed the Atlantic and arrived in Paris that evening. At this time, several other reviewers have entered a state of retreat. ?Hence, as soon as Witten left the terminal and had no time to get on the bus, he was surrounded by the good-faith media. Basically, I asked him when the results would be available. Witten didn''t want to answer at first, but seeing this attitude, it would be difficult to escape without saying something, so he had to say something like, "The review of this type of mathematics paper usually takes months or even years, so I hope everyone can be patient and calm." . However Three days later. In an office of the French Academy of Sciences. Did wemiss something? Edward Witten looked at the paper in his hand, which was nearly as thick as a book, and asked hesitantly. The paper has been turned to the last page at this time. Or strictly speaking, it has been turned to the last page more than once. But no one could figure out the problem. The entire proof process is like a puzzle piece that has been designed in advance. Each chapter at the beginning seems to have little connection with each other. But at the end of the article, the answer to the Poincar conjecture is spelled out. Logically speaking, at this point, the results can actually be announced. ?Its impossible for a room full of mathematicians to be wrong. But this time, no one dared to take the lead in taking a stand. Everything went so well. Chang Haonan and Perelman developed a new set of tools based on the combination of topology. ?About its name, it was only mentioned once in an inconspicuous position. Structural topology. This shouldnt be something that can be understood in three days. But everyone present felt that they understood. Even Hamilton, who had been mentally prepared for this for a long time, was a little unsure at this time. Speaking of which, whether the paper is finally published should be decided by the editor-in-chief of the journal, right? Finally, it was John Morgan who first proposed. Actually, this suggestion is just to break the deadlock Would any editor have objections to the review opinions given by their group? ?However, this is the human psychology. ?Although there is essentially no difference, everyone was more or less relieved after having the excuse of "the editor decided". Just writing a review opinion. Its not my final decision. "Then I think...there is nothing wrong with this paper, and I suggest...publish it directly!" The oldest Sergey Novikov said first. He also puts an emphasis on the word "suggestion". After the first person came forward, others also gave their own "suggestions". ?Of course, its all the same as Novikov. Except Hamilton. But, so far. his voice was a little dry due to staying up late for several days: Still not found that the editorial team of any journal has received submissions of papers with similar content. So, we can only think that these two authors do not intend to formally submit the manuscript, but are really planning to publish all their results on arXiv? "This should be." At this time, even Edward Witten knocked his head in distress. These two authors are simply the only outliers he has seen in his life. Well, I have one more question. John Morgans perspective on thinking about problems is always different from others: From now on, any research on topology will probably hardly avoid this paper. But it has not been published in any journal in accordance with strict academic requirements, and it is obviously not a treatise, report or news. Sohow do we quote it? The room fell into silence again. ?Everyone showed expressions of dumbfounding. The two authors caused more trouble outside of their papers than they had to overcome to understand their papers Friedman, who once proved the Poincar conjecture of four-dimensional space, suddenly said: Can we change the citation rules to include open source websites like arXiv? (End of this chapter) Chapter 839 Theoretical level LV4, get passive skills! Chapter 839: Theoretical level LV4, obtain passive skills! Chang Haonan, who is far away in China, naturally does not know that the decision he made unintentionally will cause a lot of troubles to many big figures in the mathematics community. In the last life, although Perelman also disclosed his research on arXiv, he conducted it three times in two years. During this period, he also gave a series of lectures on his proof process and ideas. The result... Not many people understand it. So it took nearly three years to finally confirm that his proof was valid. In total, it actually left a psychological buffer period of five years for the entire mathematics community. However, this time, Chang Haonan and Perelman used another simpler, but also more subtle, idea. So much so that not to mention five years, there was not even a five-day buffer left. From the time they sent the paper to the time the review team understood it, it only took a little more than three days. Who can bear this? ?As Valentin Benahou, who participated in the review, later said: This is like a nightmare. What I have always been afraid of is the moment when others will prove the Poincar conjecture in a way that I dont understand at all. ?The reality is even more than that After reading the paper, you will find that the so-called "method I don''t understand at all" is actually so simple. And such a simple method, "I" never thought of it in the past. ?This is actually a big blow to a mathematician, especially a mathematician who has studied the Poincar conjecture but failed. Such as "Am I really lacking in intelligence?" In short, it was not until a week later that Chang Haonan, who had finally rested, saw on the news A review team composed of Michael Friedman, Simon Donaldson, Edward Witten, and a long list of well-known names, finally confirmed that the Russian scholar Gregory Perelman and the Chinese scholar Chang Haonan gave the The Poincar conjecture proves the process correct. The reporter was not polite and asked Witten directly, "Didn''t you say last week that you might have to wait a few months to a few years?" After hearing this, I bought a ticket and flew back to New York from Paris. What''s going on? The results came out in just seven days? So I had to buy a ticket and fly back. ??Its quite interesting to see a serious-looking math guy being criticized so hard that he doesnt know how to answer for a while... ?Of course, this is more of a joke, and its not aimed at Witten. After all, it has only been a few years since Wiles solved Fermat''s last theorem, and many people still remember the dramatic situation that happened at that time. Wiles announced in June 1993 that he had proved the Taniyama-Shimura conjecture, but it was soon discovered that his construction of the Euler system had serious flaws, so the Kolyvagin-Fletcher method could not be applied in the scenario at that time. In December of that year, Wiles publicly acknowledged that there were problems with the certification, but promised to resolve them as soon as possible. However, mathematical things cannot be solved just by solving them. In August 1994, Wiles even publicly admitted that his proof had failed. ?However, it was at this time that the story of survival from desperation happened. A month later, Wiles had an idea while conducting a review of the failure, and finally filled in the loopholes in the proof process. Finally, it was not until 1995 that Wiles'' proof was officially recognized and published. The whole process went through many twists and turns and took nearly two years in total. So, more serious media reporters basically know that Wittens previous estimate is actually normal. What is abnormal is this time. Consequently, attention quickly shifted to Andrew Wiles. Although he was not directly involved in the review process of the paper, he was the first person to stand up at the Millennium Mathematics Conference and disclose the relevant events to the public. "Professor Wiles, we still remember that the process of proving Fermat''s last theorem was quite... tortuous. So, what do you think of this time that the mathematical community announced that the proof of Poincar''s conjecture was established in just seven days?" Facing this question, Andrew Wiles shook his head helplessly, showing a "numb" expression. He swore that at first he just wanted to have fun watching Arthur Jeff and the Clay Mathematics Institute. The result... Lezi did see it. But he is not an audience, but a performer... ?However, the question still needs to be answered. ??Wiles sighed softly and moved closer to the microphone: "I think this is the charm of mathematics. You never know whether you will have an idea in the next second, and you never know whether it will take 10 minutes or 10 years to understand a problem..." "As far as the results are concerned, there is actually no difference between the two, so we might as well pay more attention to the process. One week is certainly enjoyable, but from another perspective, a longer process may also help to obtain more Complete understanding Wiles spent almost his whole life''s literary accomplishments and finally gave an answer that did not violate the principles of mathematics but could also protect the past. As a result, as soon as he finished speaking, he heard Koncevich complaining next to him: Dont listen to Andys words. When he officially admitted that he had failed to prove it, he looked like he was facing the end of the world every day. He even thought about how to write an apology letter..." ?There was a burst of good-natured laughter at the scene ??If Wiles does ultimately prove to be a failure, then this is definitely a malicious attempt to expose one''s shortcomings. But he succeeded in the end, so these became anecdotes that could be used to joke with each other. Its just a little embarrassing at best After a short interlude, the topic quickly returned to the Poincar conjecture. This time it only took you a week to confirm that the proof process of the Poincar conjecture was correct. Does this mean that the difficulty of solving this conjecture is lower than that of some other well-known mathematical problems? This is a question that many melon-eating people like to hear. As a result, Valentin Benahou almost jumped up on the spot. ??The old gentleman has spent most of his life trying to solve the Poincar conjecture. If this thing is easy to solve, wouldn''t he... Of course not! Absolutely not! Benahu frowned: "Actually, it is difficult to directly compare the difficulty of mathematical problems in different fields, but as far as the Poincar conjecture is concerned, I can say this..." At this point, he stopped and took a deep breath to calm down a little: Poincars conjecture, at least so far, is still the only key to our possible understanding of high-dimensional space As time goes by, reporters questions become more and more acute: It is said that the author of this paper did not submit the article to any mathematics journal, but chose to publish it directly to the world on a website? Thats right. So, does this mean that existing academic rules may be challenged? ?This issue is indeed a bit sensitive, so that the originally relaxed atmosphere at the scene suddenly became tense. ?After about a few seconds, Friedman, who was the first to propose incorporating the arXiv website into the standardized citation system, nodded: In fact, according to past academic practices, articles on preprint websites cannot be counted as papers because they can be published without review. "but" He changed the subject again: "Since it has now accepted and passed the inspection of the mathematics community, there is no problem in calling it a paper... As for the challenges you mentioned, we prefer to regard this incident as an opportunity and a way to promote academic openness. and equalizing opportunities. "Therefore, we are also considering how to integrate this paper into the academic system..." The reporter just now is obviously not ready to give up easily: Does this mean that articles published by others on the arXiv website in the future can also be regarded as academic papers? Facing this question, several people interviewed on the stage laughed. After looking at each other for a few times, it was Edward Witten who spoke: "Yes." If they can also prove the Poincar conjecture. ?The scene erupted into laughter again... In fact, from the perspective of academic journals, booksellers, and even many researchers, Chang Haonan and Perelmans approach has indeed greatly harmed their interests. Because what the reporter just said was right. This is to challenge the existing academic rules and break the academic monopoly formed by publishing houses and some research institutions. ??Although the term "academic monopoly" has been completely discredited due to the non-stop shouting of civil sciences. But that doesnt mean it doesnt exist. Especially after the end of the Cold War, it has been unprecedentedly strengthened. In fact, this itself is a type of invisible hegemony. but ?There is really nothing we can do this time. The challenger is too strong Most papers need to be recognized by journal editors and peers to prove their academic value. As for this paper, peers and journal editors need to find ways to recognize it to prove its academic value. This is like Why is it necessary to give Einstein a Nobel Prize even if he found the photoelectric effect in a roundabout way? Because if a prize involving physics is not even won by Einstein, there is a high probability that it will be regarded as a pheasant prize... "Professor Benahou just said that the Poincar conjecture is the only possible key to our understanding of high-dimensional space. Now that this conjecture has been proven, does it mean that we will soon be able to make a leap in applications, or at least in basic physics? Is it possible to create a new technological revolution? ??The question this time was from a female reporter from Wired magazine. ? As a media that mainly targets new industries and new technologies, they are obviously more concerned about whether this result can have any real impact. Its best if you can see business opportunities in it. Unfortunately, you may be disappointed. Richard Hamilton shook his head: This paper does involve a series of new topology tools, but it is difficult for us to use them to solve theoretical problems in other fields in a short time. As for putting them into practical applications... ?He hesitated for a moment: I think you should ask the two authors to verify this question. ??The reporter thought to himself that if I could contact those two people, why would I still be blocking them here... Meanwhile, 12,000 kilometers away. Chang Haonan, who was watching the press conference live on TV in Beijing, suddenly received a series of system prompts. Acquire theoretical level experience: 100000 Theoretical level: LV4: 20000/1000000 Theoretical science is the most powerful weapon for understanding the world. Therefore, after your theoretical level reaches LV4, when you study an unknown phenomenon within your ability, there will be a certain probability that you can see through its essence ? ? ? ?Chang Haonan was half lying on the sofa in a rather awkward posture, but now he sat up suddenly. It is expected that the theoretical level will be improved after solving the Poincar conjecture. But the latter one...maybe it can be called a passive skill. It was indeed an unexpected surprise. In particular, Chang Haonan is not a pure mathematician like Perelman. He is going to do a project. Behind the project, there are many scientific principles that cannot be fully explained. Therefore, this ability, even if it only has a "certain probability", will definitely bring huge benefits to research efficiency. (End of this chapter) Chapter 840 One million U.S. dollars Chapter 840 Million Dollars ? Later after watching the press conference, Chang Haonan returned to the bedroom and turned on the computer, preparing to send the proof process in three languages ????and an explanatory document that had not been published on arXiv to Tang Lintian as agreed. ??Although he himself was basically sure that his proof process was correct from the beginning, as a serious scientific research institution, Beijing Hang University must wait until the results are confirmed before posting the results. ??If you open the champagne in advance, even if it turns out that the champagne was opened correctly, it will always seem a little unreserved. ?However, the first time he opened the mailbox, Chang Haonan was shocked by the situation inside ?Due to server resource issues, most mailboxes will set a storage capacity limit. At the turn of the millennium, this upper limit was basically at the level of several hundred MB to several GB. ? Considering that emails in this era do not support attachments that are too large, it is generally difficult for normal people to save so many emails. But Chang Haonan did it. ?When uploading the paper to arXiv, he didnt think too much and habitually attached the school email address he used for several previous submissions. The result... It can be imagined. Because I have received too many emails these days. ?His email space is exploding... ?Of course, this does not mean that emails sent after the explosion will disappear. ??If processed in time, it can still be queued in from the server. But its still an exaggeration woc, I made a mistake... I should have registered a new email address at that time... Chang Haonan sighed, "I have never seen this scene before" and began to check whether there was any important content in it. In fact, judging from the sending date, his mailbox was actually filled three days ago. At that time, the final review results had not yet come out. ?Hence, most of the people who sent him emails were people Chang Haonan had never heard of. ?For example, ask a student or researcher from the mathematics department of a certain school if he can explain a certain part of the paper. After all, it is a proof of Poincar''s conjecture. The so-called "concise and easy to understand" method is also compared to the method of the previous Perelman that took others three years to understand. There are still thresholds. ??However, there is no need to reply to this type of email. Because soon someone who can understand will explain it to them. With the exception of this main category, there are no regular patterns in the rest. Some are simply advertising, some are promoting newly founded academic journals, and there are even several students from different countries who have sent their personal information and asked if they can study here at Chang Haonan... To be honest, one of them has a really good resume. Furthermore, the other party also stated in the email that although the mathematical community has not yet reached a conclusion, he has read the entire content and is very convinced that the proof process is correct. More importantly, she found that every step in the paper was set up just right, and she could not see the large number of mental jumps in general mathematics papers and the confusing expressions when describing new theoretical frameworks. Therefore, she was very impressed by the author''s unique writing style. I am interested, so I hope to continue studying for a doctoral degree in Chang Haonans research group after receiving my masters degree this year... To be honest, even Chang Haonan was a little tempted after reading it. ?Its a pity that the nature of his research group is very special and he cannot recruit foreign students casually. However, after a brief hesitation, he did not throw it directly into the recycling bin like other emails. Instead, he wrote a special reply to the student named Mariam Mirzakhani, affirming the other person''s past resume, but stating that mathematics research At present, it is just my personal interest, so I have no plans to recruit graduate students in this direction. ?Originally, he was going to recommend Perelman, another author of the paper, to Mirzakhani, but he gave up after thinking about it. After all, the latter is the master of what the other party calls "jumping thinking" writing style, to the extent that even colleagues would call it outrageous... As Chang Haonan cleared up space in his mailbox, some emails sent in recent days were gradually transferred from the server. In fact, the review team basically understood the entire proof process in just three days. In the next four days, they conducted multiple rounds of repeated inspections and confirmations just because they felt it was too outrageous. ?Just to avoid the situation like Wiles''s, it was not disclosed to the media before the final results were released. But within the mathematics community, it has actually been known for a long time. So, the emails sent to Chang Haonan''s mailbox at this stage already contain a lot of heavyweight content... They are really positive ?Chang Haonan looked at the four web pages arranged in a 2*2 arrangement in front of him with a bit of laughter and tears. The above are the invitations for manuscripts sent by the four major mathematics journals to himself and Perelman at almost the same time. The content, without exception, is all about the proof of Poincars conjecture. In fact, normally speaking, although there is competition between different journals, considering the image problem in the academic circle, they will not take away food from their friends. ?It looks so ugly when you eat like that. So in the first few days, everyone thought that this paper had been submitted elsewhere, so everything was fine. But after realizing that the paper was not actually submitted, the situation was completely different - ?Everyone can predict that this paper will be cited by dozens or millions of later generations, just like the paper by Watson and Crick that discovered the double helix structure of DNA. Even the top journals cannot completely ignore the impact factor brought about by this terrifying number of citations. In the end, of course, he still didnt reply. ??? But I took a screenshot of this famous scene, and then collected these four emails... ? ? ? It can be regarded as an unprecedented achievement, and it is difficult for others to achieve it in the future... ?In this way, it was not until this afternoon that Chang Haonan finally sent the planned email to Tang Lintian. Then, I received a reply from the other party almost immediately. ?Only one short sentence. Your mobile phone has been out of reach for several days. Chang Haonan finally came back to his senses. Why do I always feel like something is not quite right today Normally, when this kind of news comes out, there should be countless calls coming in. But the place where Chang Haonan lives is quite special, so the phone number at home here, even if it is an outside line, is only known to a very small number of comrades in the Science and Technology Commission system and a group of comrades who are responsible for providing logistical support. Since he started to retreat last month, he has never taken care of his mobile phone again. Even though the battery life of current mobile phones in standby mode is quite exaggerated, they have been out of power for a long time... ?Thinking of this, Chang Haonan hurried downstairs to the living room to charge his mobile phone that had been turned off. The first person to call was Tang Lintian. Are you watching the press conference? Once connected, the other party got straight to the point. "Well" ?This question made Chang Haonan stunned: Isnt it already over a long time ago? ??He obviously finished reading the interview before going upstairs to reply to the email. No, you are talking about the interview with the review committee this morning. That must have ended long ago. ?Tang Lintian explained: This is a press conference held by the Clay Mathematics Institute, the same organization that announced the bounties for the seven major mathematical problems of the millennium... CCTV 9 (CCTV9 is still an English channel at this time, not a documentary channel) is broadcasting the entire event. ?Chang Haonan suddenly became interested. One million US dollars or something, for him now, it is secondary. The key is that he wants to see the other party''s reaction. ??He also read some newspapers in the past two days and found that the day he uploaded the paper to arXiv happened to be the same day when the institute released the reward... Turn on the TV. ?Appearing on the screen are the sponsor of the Clay Institute, Langton Clay, and the director, Arthur Jeff. The two of them are surrounded by a group of microphones. The reporter just asked the most critical question. Thats the reward. ??Does it count? After all, this is such a coincidence. ?Many people have speculated whether the Poincar conjecture will be eliminated and a new one added. ??When he heard this question, the muscles on Langton Clay''s face twitched visibly. One million dollars. Its not that he cant afford the money, but he is really not mentally prepared at all now. ?According to Arthur Jeff, it would be difficult for all seven of these problems to be solved in the next century. It would be pretty good if someone could solve one of them within 10 years. And spending money is secondary. Mainly a slap in the face. At the Millennium Mathematics Conference, Jeff directly performed a physical act that made him unable to get off the stage. It''s just that it''s uncomfortable to feel uncomfortable. Clay still has to have a face. Cant not give it. ??And judging from the results alone, the impact of this coincidence on the research far exceeds the value of one million US dollars. Therefore, he adjusted his mentality slightly and replied in a deep voice: I have to say, this is indeed a wonderful coincidence. Perhaps from a legal perspective, whether the proof of Poincars conjecture meets the scope of the reward is a question that can be discussed, but personally, I prefer to understand this coincidence as an arrangement of fate. "Therefore, the Clay Institute will recognize the validity of this reward and, in accordance with the previously agreed terms, will officially award 1 million to the two authors one year after the proof is submitted, that is, on May 24, 2001. Dollar bonus! (End of this chapter) Chapter 841 Ask me to be the editor-in-chief? Chapter 841 Ask me to be the editor-in-chief? I have to say that Clay knows how to publicize. ?His statement, coupled with the recent back-and-forth campaign and the million-dollar stunt, directly elevated the award he established for the Seven Millennium Problems to a household name. ?At this time, no matter what, the mathematical community must pay attention to it. After all, there is no Nobel Prize in mathematics. Although almost more than half of the Nobel Prizes in Economics were awarded to scholars in the field of mathematics, people once thought that the Economics Prize was compensation for mathematicians. Although it includes but is not limited to the Wolf Prize and the Fields Medal, it claims to be the "Nobel Prize in Mathematics." However, after all, the Nobel Prize does not include a mathematics prize. ?Perhaps mathematicians can ignore this. But not in mathematics In fact, most mathematicians just pay lip service and dont care. Correspondingly, the reputation of the Clay Institute has been raised to the level of the world''s top academic institutions. ?Of course, its just fame. In terms of strength, it is obviously not that interesting at the moment. ??But when it comes to research, to put it bluntly, its just people plus money. Theoretical mathematics may not have immediate results compared to other fields. But at least it is positively correlated. ?With enough fame and an investor willing to spend money, the take-off of the Clay Institute is basically a certainty. Its just a matter of how high it can fly. Professor Chang, I would like to congratulate you in advance for being the first scholar to receive this reward. While watching TV for a few minutes, Chang Haonan did not hang up the phone. So, after Clay answered this question, Tang Lintian immediately congratulated him. Ouchthings outside the body, things outside the body ?Chang Haonan put the phone to his ear again: Besides, you know my situation, so you probably wont accept the award... At this point, he muttered in his heart: Perelman should not But Tang Lintian gave a different answer: "Hey, Professor Chang, according to my guess, unless you explicitly refuse to accept the award, this Langton Clay will probably send you the award even if he hears that you are not going to accept it." Chang Haonan thought it was a bit outrageous at first, but after thinking about it carefully, it really made sense. From the perspective of making big news, a normal award ceremony is obviously too bland. Even a year later, people who eat melons may not still remember such a thing. But the plot of "the mathematician is indifferent to fame and fortune and is unwilling to attend the award ceremony, and the sponsor keeps his promise and presents the award in person", no matter what the final result is, the story is definitely full of interest. ??If it were left to the BBC, they would probably be able to make a documentary series... After chatting about other things for a while, Tang Lintian took the initiative to end the call. In his words: Today your time belongs to many people, I cannot monopolize it Sure enough, just as Tang Lintian expected. ?Chang Haonan just put down his cell phone. Haven''t even had time to pour myself a glass of water. The second call came in. Congratulations, Professor Chang! ??The voice on the phone was a little distorted, so that Chang Haonan didn''t recognize who it was for a while. Fortunately, the other party did not just say this sentence: When I was defending my thesis last year, I was still a little surprised. Why did Principal Tang insist on finding someone who had done mathematics in my past? Now it seems that Old Tang is still far-sighted..." You are now a blockbuster. It is no exaggeration to say that you have pushed the entire Chinese mathematics community forward by 20 years. I heard it now. is Yuan Xiangya. The Chinese mathematics community had a brief period of glory, but after the Zhejiang University School of Chen Jiangong and Su Buqing, and the Chinese Analytical Number Theory School of Hua Luogeng, it has indeed not made any decent noise for decades. Until a week ago. ?In the past seven days, China''s name has appeared more times in relevant discussions in the international mathematics community than in the previous 20 years combined. "Dean Yuan, this...is really an award..." ?Chang Haonan is not modest either. The result of proving the Poincar conjecture is of course very important, but for now it is still an isolated case. In terms of influence, unless he really cultivates a group of students in the future, it is still impossible to compete with those prestigious schools based on individual achievements alone. Yuan Xiangya naturally made this call not just to congratulate Chang Haonan, so after a round of greetings, he quickly got to the point: "Professor Chang, it''s like this. Our academician Yang Jue from the Institute of Mathematics and Systems Science has always had the idea to establish a mathematical journal that belongs to China and has a certain influence. However, he has been unable to find enough journals before. An influential scholar serves as the editor-in-chief, so he commissioned me to ask you if you are interested in this matter?" ??Although Yuan Xiangya is not yet an academician, he is already the vice president of the Academy of Mathematics and Systems Science This is actually quite normal. As mentioned before, academicians have a fixed quota and are promoted on a first-come-first-served basis. They can only be removed if they die or have major problems. Not only China, but also the academies of sciences in all countries basically follow this logic. ?It is impossible to squeeze others out just because your contribution is greater than others. Then everyone is in danger. In this way, if all the academicians of a certain academic department are in good health, there will be no attrition for many years... You can only wait in line. Faced with Yuan Xiangyas question, Chang Haonan did not immediately give an answer. In fact, establishing Chinas own top academic journals, and even establishing Chinas academic system, is something Chang Haonan has been thinking about a few years ago. But his idea still starts from engineering, or natural science in the narrow sense (physical science + life science). Compared with theoretical mathematics, these two directions are also what Chang Haonan is more interested in and is better at. Dean Yuan. After about a few minutes, Chang Haonan spoke again: Do you think that in the field of theoretical mathematics, even if I serve as the editor-in-chief, and even if we can publish bimonthly or even quarterly journals at the beginning, can we really produce a sufficient number of high-level mathematics papers? Without waiting for Yuan Xiangyas reply, he continued: Perhaps one or two issues is okay in a short period of time, but it is difficult to continue... In this way, if the quality of subsequent articles drops significantly, it will only have the opposite effect, right? "Um" Yuan Xiangya remained silent. Obviously, Chang Haonans concerns are right. ?However, with such a once-in-a-lifetime opportunity, it would be a pity not to strike while the iron is hot. ?A few years or more later, even if Chang Haonan is still appointed as editor-in-chief, the appeal will be completely different. ?It is impossible for another genius to solve another millennium problem by then, right? Professor Yuan. Just when Yuan Xiangya was in trouble, Chang Haonan suddenly changed the subject: Actually, I also think that this opportunity is very good. "Um?" Although the former was a little confused when he heard this, he could still tell that there was something to be done. We dont necessarily have to limit our sights to theoretical mathematics. Chang Haonan came directly and said: Why not refer to "Nature" or "Science" and focus on multiple scientific fields?" Yuan Xiangya was shocked: Isnt it more difficult? "If we want to replace "Nature" or "Science", it is indeed more difficult, but we are just getting started after all, and the goal should be more conservative." Chang Haonan explained: The first step is to keep our journal in the middle or upper reaches of SCI. In addition to the impact factor, at least it cannot be a water journal. The second step is to consider joining the ranks of top international journals... "third step," Finally, if all of the above are achieved, then we can consider challenging the entire SCI evaluation standard and establish our own academic system. After a lot of painting, Yuan Xiangya couldn''t listen directly. Thisis a bit Even though Chang Haonan said to be "conservative", it was obvious that only the first step was barely conservative. The content that follows is nothing short of wild. Like "challenging SCI evaluation standards". He has not even thought about it, let alone planning. But I never thought about it in the past, that was a thing of the past. Now being mentioned like this by Chang Haonan... ?This cake is so delicious! (End of this chapter) Chapter 842 Which academic department is the academician of? Chapter 842 Which academic department is the academician of? ?Once he accepted the setting given by Chang Haonan, Yuan Xiangya could no longer contain his thoughts. In fact, his own research direction is more towards applied mathematics. It just proves that the big news of Poincar Conjecture still belongs to the category of theoretical mathematics at least for now, so his previous thinking has been limited to this area. ?Thinking about it now, multi-scientific fields are indeed more promising. In particular, the country is gradually increasing its investment in the fields of ocean, aerospace, geology, aviation, etc., and while these investments are transformed into physical products such as submarines, rockets, satellites, and aircraft, they will also inevitably become excellent in the field of natural sciences in the narrow sense. Test Platform. I dont dare to say how many earth-shattering results can be produced that will change the times, but it will certainly be no problem to meet the mid- or upper-middle SCI mentioned by Chang Haonan just now. And it is definitely not the kind of article that changes the matrix of polymer materials. That is all to be published anyway. Instead of taking advantage of others, it is better to take advantage of being close to the water and keep at least part of it in the country. ?Thinking of this, Yuan Xiangya hurriedly requested: Professor Chang, since we have already talked about it, why dont you just think of a name for this new journal? In fact, what he first thought about was to ask Chang Haonan to write an inscription. But considering that firstly, the words written by the other party''s science and engineering professor may not be good-looking, and the title will not reflect well on both sides. Secondly, since it is a journal for the world, the title must at least have an English version and an inscription. Its even more unnecessary So when it came time to say it, it was changed to naming. "name" ?This completely unexpected request really made Chang Haonan a little confused for a moment. If you use that concise style, it will be almost difficult to surpass the two mountains of "Science" and "Nature". It does not refer to academic value, but to naming. The main reason is that apart from these two words, it is difficult for the remaining words to have an all-encompassing effect. ??If you call it "Earth", it sounds like a geographical science magazine. ?It''s called "Universe", and it sounds like it''s about astronomy. It can''t be called "Tao". So I had to change my mind... By the way, I remember our Chinese Academy of Sciences doesnt have a journal yet, right? Chang Haonan asked. Yuan Xiangya understood what he meant instantly: No, there is only one Journal of the Graduate School of the Chinese Academy of Sciences, which is published biannually. It is not limited to any field at all, and its influence is not very great. There is no restriction on fields at all, which means that you can apply for liberal arts and sciences. This is due to historical reasons. ??The Chinese Academy of Sciences was originally an all-encompassing institution. Even once assumed the functions of the National Science and Technology Commission. The Chinese Academy of Social Sciences was originally the Department of Philosophy and Social Sciences of the Academy of Sciences. ?Although it became independent as early as the late 1970s, it still maintained inextricable ties until the 1980s and 1990s. So, its better to just take over the name and call it Journal of Chinese Academy of Sciences, JCAS. ??This name sounds a bit like JACS, but there''s nothing I can do about it. The words "journal, science, and academy" go back and forth in just a few combinations. Fortunately, although JACS is already considered a top journal today, it is not as well-known and almost all-inclusive as it was more than 20 years ago. So there should be no suspicion of being too popular. "Um" On the other end of the phone, Yuan Xiangya looked at the phone in hands-free mode, holding his chin with one hand and tapping the table rhythmically with the other hand. The name itself is not a problem. But the key point is that no matter what the journal is called, the name of the editor-in-chief must be Chang Haonan. And "Journal of the Chinese Academy of Sciences" is such a naked name. ??The editor-in-chief is not from the Chinese Academy of Sciences... Seems a bit outrageous. ? Even if I change my name, I wont have the feeling of being NTR. ?He pressed the mute button and looked at Academician Yang Jue, the dean of the Institute of Mathematics and Systems Science, who was sitting on the sofa on the other side of the office. What do you think of this name The latter obviously knew what Yuan Xiangya was thinking, and immediately waved his hand: "It''s okay. Now several departments are almost fighting in the field of disciplines who are always attributed to Professor. Looking at this posture, I estimate that up to two or three years, he will become our people ..." "Just get on the bus first and then Supplementary votes Although Yang Jues idea of ??publishing a pure mathematics journal was rejected by Chang Haonan, his most fundamental purpose was achieved. Furthermore Science can change the world. Mathematics can change the world by changing science. As long as the definition is flexible enough, I can also be a member of the natural sciences... Yuan Xiangya pressed the mute button again: Professor Chang, we support your suggestion in principle. Of course, the final result must be decided by the Academy of Sciences... After another polite conversation, this time Chang Haonan took the initiative to end the call. Academician Yang, so many academic departments are competing, dont you have any plans to follow suit? Yuan Xiangya raised his head again: After all, although Professor Chang has made many achievements and covered a wide range of topics, it is this time that he has been able to publish a special book. Furthermore, the International Congress of Mathematicians will be held again the year after next. Our capital city has been among the candidates for the venue. After this incident, it is basically a certainty. I am afraid that the Philippine Prize will also..." He did not put his words too directly. But its enough. ??The International Congress of Mathematicians is held in rotating locations in major cities around the world. ?Perelmans city, Moscow, had already opened it in 1966 and will not be included in the candidates. In this way, Beijing clearly has huge advantages over its other three competitorsMadrid, Bangalore and Seoul. ?On the other hand, Chang Haonan and Perelmans Philippine Awards are almost undisputed. There are still two years from now to 2002, and the time buffer is sufficient. so ??There is a high probability that the Fields Medal will be awarded to a local Chinese scholar at the first international conference of mathematicians held on Chinese soil. This is definitely an explosion of influence. It is also a huge benefit to the Department of Mathematical Physics Fields Medal. Have it stamped? ????????????????????????????????????????????? Professor Yuan, you have to think about this carefully. ??Yang Jue did not immediately answer Yuan Xiangya''s question, but looked at the latter with a half-smiling expression: No matter which department Professor Chang enters, he will definitely jump in. So if he comes over, then you have to stand in a row further back... In recent years, Yuan Xiangya has put a lot of effort into the matter of becoming an academician. Whether academically or socially. ??For this reason, I also had some conflicts with several candidates with similar conditions. ?Although everyone wont say this explicitly, they definitely see it. Whats more, as the dean, Yang Jue. Suddenly asked such a straightforward question, Yuan Xiangya didn''t know how to answer it for a while. After about half a minute, I finally organized my words: Im only 40 this year, so its still... He originally wanted to say that he was still young and could afford to wait, no less than three to five years. But when I thought about it, it seemed that Chang Haonan was even more outrageous. Even if calculated according to 2003, he was only 28... So I had to skip this paragraph: In any case, if Professor Chang can come to our department, it will be a great thing for everyone in the Chinese mathematics community, including me and those few people. I can still clearly distinguish the stakes. (End of this chapter) Chapter 843 Me and my big boss mentor Chapter 843 Me and my boss mentor On the other side, after ending the call with Yuan Xiangya, until late that night, Chang Haonan received congratulatory calls from a series of acquaintances such as Fang Zhen, Du Yishan, Yao Mengna, Xu Yang, Guo Lin, etc. In the meantime, Ding Gaoheng invited him to his home for dinner. He couldn''t even sleep for long. Fortunately, he had had enough rest in the previous week. Thanks to the ability of "storing sleep time" gained by Chang Haonan after his rebirth, this night was not bad. ?Actually, he wanted to rest for two more days, after all, he was going to be extremely busy in the second half of the year. ?However, there was one thing in the end that forced him to suspend his vacation plan Li Yabos graduation defense. ?Chang Haonan uploaded the paper to arXiv on May 24, and another week and one day passed. ?Now, the graduation season has officially entered... ?So, early the next morning, Chang Haonan finally appeared in the office of the computing center. ? ? Thanks to his status in the military industry system and his exceptional security level, his specific daily schedule and travel methods will not be disclosed casually. Wont even repeat the same route for a long time. ?However, when it comes to keeping things secret, as long as you dont directly build a separate city in a deserted place like you did with two bombs and one satellite, you are destined to be unable to reach the limit. So, although Chang Haonan didn''t attract much attention when he came to the school, Tang Lintian hurriedly appeared at the door of the office before he could warm up his butt. Professor Chang, you are willing to come to school... ??Tang Lintian was holding a bulging briefcase in his hand. Before he entered the door, a voice came from outside: "You don''t know how many times people who can''t contact you have called me in the past four or five days. Now I don''t have to do anything else when I go to work every day..." As he spoke, he pulled up a chair and sat across from Chang Haonan. ?Although he was complaining on his lips, judging from the red expression on his face and the corners of his mouth that couldn''t be lowered at all, he must actually be enjoying it. Theres no way, youre the principal. Chang Haonan also replied jokingly: Even if they can contact me, apart from expressing congratulations, if there is anything else, in principle, they still have to go through...or at least inform the school. When Perelman visited and returned to China at the speed of light before, causing some minor public opinion turmoil, Ding Gaoheng specifically told him that he would hold a meeting for schools under the Science and Technology Commission system to formulate a mechanism to deal with similar situations. In general, when facing major public opinions, no matter good or bad, the school should take the initiative first. After the situation becomes clear, the next step will be decided based on the personal wishes of the frontline researchers - ?This is why Tang Lintian rushed over as soon as he heard Chang Haonan arrived at school. Professor Chang, I have asked the office to list some interview applications from general media and invitations for academic exchanges that are not very important. He took out a folder from his bag and put it in front of Chang Haonan: Take a look and see if there is anyone here who needs to participate. If not, I will reject them all in the name of the school. The latter opened the folder and took a casual look. Indeed, as Tang Lintian said, they are all dispensable activities. ??However, this outrageous thickness made him feel a little frightened. ??If this all comes directly to oneself, then Im afraid I wont even be able to carry out normal work. For a moment, Chang Haonan even felt a little admired by Tang Lintian in front of him. Theres nothing you need to participate in, so lets just do it all He closed the folder again. ?Tang Lintian nodded casually, not even taking the folder back In fact, this result was within his expectation. Just out of respect for the teaching staff, the school must not overstep the mark. What comes next is the key. In addition to these things that are easier to get rid of, there are two other things. ??Tang Lintian said and put the briefcase next to him: One is that CCTV will conduct an exclusive interview with our school again. "Of course, I say it''s for our school, but it''s actually for you. So, I still have to trouble you to show your face. It doesn''t need to be long, just two or three minutes. It''s mainly to introduce the concept of the Poincar conjecture and solve this problem. meaning. Of course thats no problem. As long as it is within a reasonable range, Chang Haonan is still willing to cooperate in some publicity. These days, Chinese people really need something that can make them stand up. After all, most people who eat melons are ordinary people. What kind of feedback they give depends entirely on what kind of guidance they receive. ??Its hard to maintain a positive attitude when the news is all about depressing news all day long. Speaking of whichPrincipal Tang. After a short pause, before Tang Lintian could say the second thing, Chang Haonan suddenly changed the subject: The main body of TV programs is still the masses. Isnt the concept of Poincars conjecture a little abstract? Well its indeed abstract. ?Tang Lintian looked deeply convinced. When Chang Haonan said that he was solving the Poincar conjecture, he also specifically checked the information on this matter. It took me a long time to figure it out in the end. Ordinary people without any mathematical foundation may find it even more difficult to understand. But this is the request of the propaganda department, so we can just comply with it. ?Tang Lintian explained: Furthermore, most people dont really need to understand the Poincar conjecture, as long as they know that this thing is very difficult..." "Right." Chang Haonan smiled and nodded: Looking at it this way, I think I should explain it a little more complicatedly... ? ? "It''s not impossible..." ? ? After all the joking, Tang Lintian finally returned to the topic: The second thing is that I was contacted by the Chinese Mathematical Society and invited you to attend the annual academic meeting at the end of this year and present the 6th Zhong Jiaqing Mathematics Award. Zhong Jiaqing Mathematics Award? Chang Haonan is not a mathematics major after all. He only knows about the Chen Shengshen Mathematics Award and the Hua Luogeng Mathematics Award in China. Yes, this is an award specifically given to outstanding graduate students majoring in mathematics. Graduates of the current year and the past two years can participate. ?Tang Lintian explained. In fact, he had never heard of this award before, but after checking it later, he found out that it was actually one of the three major mathematics awards in China: Originally, the Mathematics Society wanted to teach you one. After all, as a graduate within two years, you just graduated last year, so you still meet the requirements. However, first of all, your doctoral thesis is not in mathematics, and secondly They also feel that it would be a bit unqualified to award you this prize now...so they decided to wait until the next Shengshen Chen Prize in Mathematics, and this time they will invite you as a guest. Speaking of this, Tang Lintian smacked his lips with emotion Others only worry about whether they are qualified enough to judge a certain award. ?When it came to Chang Haonan, it became that he had to consider whether he was qualified for a certain award and give it to him... If its held in the capital, its okay to attend by the way. ?Chang Haonan thought seriously for a while and then replied: But if its in other cities, I wont make a special trip there. Dont worry about this. ?Tang Lintian waved his hand: Normally, the annual meeting will only be held in November. Even if the original plan is not to be in the capital, with your words, they will have to move here..." ˡ While the two of them were chatting, there was another knock on the door. Please come in. The computing center originally had a separate access control, so everyone who could get to the door of Chang Haonan''s office must know someone. The door opens. ?After half a second, Li Yabo carefully moved in from the outside: Congratulations to the teacher As soon as he said hello and before he finished his congratulations, he saw Tang Lintian sitting opposite Chang Haonan: Uhshould I wait outside "no, I''m fine" ?Chang Haonan called the other party over: Your graduation thesis should have been sorted out, right? Its sorted. ?Li Yabo took out a printed and bound paper from his schoolbag: Take a look. Is this the undergraduate student you brought? ? Tang Lintian has resigned from the position of dean of the School of Aeronautical Science and Engineering after he officially became the principal, so he doesnt know the students that well. Yes, its called Li Yabo. After Chang Haonan finished speaking, he introduced Li Yabo: This is Tang Lintian, Principal Tang. It is completely normal for college students not to know the school leaders. Whats more, Tang Lintian was not the principal when Li Yabo entered school. Hello, Principal Tang. Hey, hello, hello. ?Tang Lintian responded enthusiastically. Then he looked at Chang Haonan: Has his defense committee been arranged? "ah?" The latter was so shocked that he almost dropped his paper: Isnt it necessary for the college to organize a unified defense defense for undergraduate students? Normal undergraduates, of course. ?Tang Lintian replied naturally: But thinking about the situation when you graduated, there are still exceptions..." When I graduated that year, wasnt it also organized by the unified organization? It has only been three years since Chang Haonan graduated as an undergraduate, so his impression is quite profound. Of course it is on the surface, but if you think about it, how can two academicians come to a normal undergraduate defense... So it is actually specially arranged for you. "Um" Chang Haonan looked back and thought it made sense. "Now that your student has to defend himself, the standards...can''t be any worse than those back then, right?" ?Tang Lintian looked at Li Yabo with what he thought was a kind and kind look. But the latter felt a little chill on his back and couldn''t help but take a step back. Well, the two of us, as well as Academician Liu Zhenxiang, who is from our school, and Academician Wang Yuanguang, and Academician Huang Yunbo, who was just elected this year, happen to be in the capital, so Ill invite the two of them over..." Li Yabo next to him slowly widened his eyes after hearing this ?What is this? I just graduated from a bachelor''s degree. There are three academicians here? real or fake? (End of this chapter) Chapter 844 Capacity allocation of turbofan 10 Chapter 844: Capacity Allocation of Turbofan 10 No matter what Li Yabo thinks, the candidates for the defense review panel have been decided. That is, after Chang Haonan graduated last year, Du Yishan officially retired to take care of his old age, otherwise he would have to raise another one... "teacher" After Tang Lintian left, Li Yabo, who was numb, came to Chang Haonan''s side with a frightened expression on his face: I just graduated with a bachelors degree, so this is... Dont worry too much, just prepare normally ?Chang Haonan was looking down at Li Yabo''s paper at this time, and replied without raising his head: The content of your thesis is not a big problem for anyone who has graduated with a masters degree. No matter who comes, it will not be difficult for you. ? No matter whether you are an undergraduate or a master or doctoral student, the key to passing your graduation project is blind review. ?Blind review is no problem. As long as the defense process is not particularly outrageous, you will not be stuck in graduation. At best, its just ugly on stage. Of course, thats what it says. As a person involved, Li Yabo should definitely be nervous. ?Especially since he plans to continue his studies after graduation, he must still get a good evaluation for his thesis. Lizi, why is your face so white? After returning to the dormitory, a roommate quickly discovered something was wrong with Li Yabo. Its time to answer the question, Im nervous. The latter was lying on the bed, looking like he was unconscious. Im going...are you still nervous? Another roommate joked in an exaggerated tone: Didnt your boss just come up with an earth-shattering result? Thats right, the review teacher cant make things difficult for you even if its for his own sake, right? Besides, undergraduate thesis, isnt it just a matter of doing it casually, going through the motions and then waking up ? A few people talked to each other, and the topic gradually changed from Li Yabos mentor to their respective graduation projects. Even their respective futures. "well" Li Yabo, who was lying on the bed, sighed. Obviously, his roommates still dont know what kind of devil-level lineup they will face... Anyway, you guys...especially Lao Bai and Wu Pangqian are going to graduate school...I still suggest you prepare well..." Soon, it was time for the defense. The oral defense for undergraduate students is different from that of graduate students. Students in a college are divided into several groups, and each group corresponds to the same group of oral defense teachers. The whole process basically lasts from the morning to the afternoon of that day. So, as one of the judges, Chang Haonan got up very early that day and arrived at the school about an hour early. However, there were still many people standing in the corridor. After all, June is entering. In addition to undergraduate students, it is also the peak period for graduate student defenses. In the crowd, Chang Haonan happened to meet a familiar face. Zhou Shuwan. At this time, the other party also noticed him. Professor NanChangChang, what are you The moment he saw Chang Haonan, the most terrifying possibility flashed through Zhou Shuwans mind ?My former classmates are going to be my defense judges... Oh, Im here to check on the undergraduate students defense. Zhou Shuwan breathed a sigh of relief. However, Chang Haonan asked again. What about you? I remember your research teams laboratory is not here, right? "I" ?Zhou Shuwans eyes darkened, and his expression suddenly became unbearable: Of course Im here for my graduation defense ?Chang Haonan swore that he had indeed forgotten. ?It takes three years to graduate from a bachelor''s degree. According to the normal progress, isn''t that the graduation defense for a master''s degree... ?This is really a bit embarrassing. Then...will you continue to study for a Ph.D.? He quickly changed the subject. Definitely have to read it. Zhou Shuwan also knew that Chang Haonan could not have done it on purpose. He adjusted his mentality slightly and nodded: In the area of ??aviation life-saving equipment, our country has rarely even done systematic research before. It was only gradually developed after the introduction of the KD36D ejection seat with Project 11 in the past two years. This is when manpower is needed. The J-11 series fighter jets use HTY8, which is 100% restored according to the K36D drawings. Naturally, its performance is as world-class as the former. ?However, the ejection seat needs to be adapted to the aircraft, so there is no way to directly move the HTY8 to other domestic aircraft. Tactical aircraft are okay. The HTY5 equipped with the J-10 is slightly inferior to the HTY8 in terms of ultimate ejection speed, but it is at least a decent third-generation ejection seat. As for large aircraft, such as the H-6, the situation is not very optimistic. ??Even maintains the "glorious tradition" of crew members ejecting downwards. So, as Zhou Shuwan said, there is still a long way to go in this regard. Just when the two were about to end their chat, a voice suddenly came from behind Chang Haonan. Sounds a little familiar. Mr. Chang. Chang Haonan turned around. It was discovered that it was Liu Gaozhuo. The commander-in-chief of Project No. 11. ??Although he doesnt have as many contacts with Chang Haonan as he does with He Ming, who is in charge of production, they are still old acquaintances. You were also invited here...to serve as a defense judge? According to regulations, the defense committee of a graduate student must have members from other units. Just like when Chang Haonan defended his doctoral thesis, he invited Yuan Xiangya and Qian Lao. Mainly come to the meeting and be a judge by the way. While speaking, Liu Gaozhuo also noticed Zhou Shuwan who was opposite Chang Haonan: Hey, it seems that he is here to be the judge... Then he turned his attention to Chang Haonan: "you" Classmates, classmates After some explanation, Liu Gaozhuo finally understood the rather complicated relationship between the two. By the way, Mr. Chang, there is something I want to talk to you about alone after the defense is over. ?Before walking into the conference room opposite, Liu Gaozhuo walked next to Chang Haonan and whispered. The latter was stunned for a moment, then nodded: "Can." But it may take me a little longer. You can meet me at the computing center at four oclock in the afternoon. The process of Li Yabos defense was smooth sailing. There was no situation where Chang Haonan argued with the Confucian scholars on his behalf ??If he couldn''t handle even this small scene, Chang Haonan wouldn''t have been able to recruit him in the first place. ?However, this was a hardship for the other people in the same group as Li Yabo. Especially two of them who are also preparing for further studies. ??On normal days, when encountering a more acute problem, the teacher would dare to stand up and help with a few words. And now this scene... Three academicians, one president, and another Chang Haonan. Shaking.jpg To sum it up, its Reply and defend, just answer and not defend. Once you ask a question, apologize like crazy... ?Of course, I gave it all in the end. after all Graduating from an undergraduate degree is simply not a person. ??Furthermore, for Jinghang students, no matter how hard they paddle, they still have a bottom line, and there are no particularly outrageous situations. After the entire defense process, Chang Haonan first asked Tang Lintian to send Wang Yuanguang and Huang Yunbo to the canteen of Torch Group, while he went back to the office alone. Liu Gaozhuo was waiting there as promised. Mr. Liu, what you said during the day was... The two of them sat down on the two sofas respectively, and Chang Haonan asked straight to the point. Mr. Chang, thats it. Liu Gaozhuo explained: In accordance with the needs of the Air Force and in conjunction with the progress of the Project 11 improvement project, we are prepared to deliver six trial production batches of J-11B fighter jets to the Air Force for early use in small batches. Thats a good thing. ?Chang Haonan filled the other partys glass of water: Whether its the aircraft itself or our power, if the Air Force is willing to accept small batch trials, the progress will be much faster. Liu Gaozhuo was holding a cup in one hand and arranging his hair with the other hand awkwardly: The main thing is... our factory wants to try our best to hand over these aircraft before the end of this year, but the comrades at Liming said that by December, we can only provide up to 6 turbofan 10A engines. Look at this..." Chang Haonan understands. This is to ask for production capacity. Because Project No. 10 and Project No. 11 are advancing at the same time, and both require turbofan 10 as power, the already low production capacity is even more stretched. ?Especially after entering 2000, the J-10A built two new single-seat aircraft, 03 and 04, and a two-seat prototype aircraft 05. Counting backups, the demand for the turbofan 10B increased immediately. The production capacity allocated to model A will naturally be reduced. "well" After thinking for a while, Chang Haonan sighed and replied: "Mr. Liu, let me tell you directly. In the second half of the year, the total output of turbofan 10 will be 10 units. Project 10 has three prototypes under construction. That''s 3 units. There will always be backup engines. One unit is left, so the production capacity of these six 10A turbofans has indeed come to an end. " We are all brothers, so there is no way I can cut off their supply for Project No. 10 Speaking of this, Liu Gaozhuo realized that he really had no choice in terms of production capacity allocation, so he had to ask tentatively: Then...can we consider expanding production? Chang Haonan shook his head: "The production capacity of Turbofan 10 cannot increase, mainly because the special-shaped air film holes I originally designed for the turbine blades and turbine disk were really too complicated. The current combined electric spark-abrasive flow process requires long working hours, and there will be more to come later. It requires manual processing by experienced masters to reach the standard, but there are only so many masters..." Its not that I dont want to expand, its just that I cant expand... Since China''s high-temperature alloy materials are not up to standard, in order to ensure sufficient temperature in front of the turbine, an extremely complex internal structure of the air film hole has to be designed for the hot end component of the turbofan 10 - Even more complex than the hole pattern used by China on the turbofan 15 in the previous generation. After all, the latter, as an engine in the 2020s, can already use quite advanced high-temperature alloys. The design difficulty is actually much smaller. The cost...is that it is quite difficult to ramp up production capacity. From the production of prototype No. 01 to the present, although the overall process has been improved for several rounds, the total output has not improved much because of the speed-determining step of "master craftsmanship". With no previous life experience for reference, Chang Haonan could only move forward step by step. This was one of the main reasons why he decided to get involved in computational materials science. (End of this chapter) Chapter 845 The evolution of the M88 engine Chapter 845 The Evolution of the M88 Engine The two of them chatted for half an hour, and finally Liu Gaozhuo had no choice but to accept the reality: It seems that the trial production batches can only be delivered next year ?In addition to the fact that phased array radar has not yet been used, and the data processing capabilities of the airborne computer are still relatively limited, the J-11B has almost reached the level of the third and a half generations currently being developed by various countries. So Liu Gaozhuo originally wanted to give the Air Force, and of course his superiors, a surprise to welcome the new century before the end of this year. But this plan can only be postponed. Dont be too discouraged. Even if it is delivered early next year, from a time perspective, it will be considered a gift for the new century. Chang Haonan could only comfort himself. The 21st century starts in 2001, so as long as it doesnt take too long, it makes sense. Sigh...its true that we are a little anxious. Liu Gaozhuo nodded: If you think about it carefully, although it is an improved model and many subjects have been verified by Su-27SM in advance, the current efficiency is already very fast..." The J-11B only made its official first flight after the National Day last year. However, because of the existence of the Sukhoi isomer model, it is equivalent to a total of 6 aircraft from the two countries flying at the same time. Only the airborne equipment and weapon systems need to be separated. Independently verified. The entire test flight process is much simpler than that of new aircraft or even major facelifts such as the J-10A. Its normal to feel anxious. Now that they have finished talking about the business, Chang Haonan stood up and prepared to leave the office with Liu Gaozhuo: "Think about four years ago, when we saw the F14 in the southeast, we had nothing to do with it. Although there were a lot of achievements in the following years, the main combat models that were truly transformed into combat effectiveness were the J-8C and J-11. I really cant relax mentally yet ??The latter also followed Chang Haonan''s footsteps. While waiting for Chang Haonan to lock the door, he said in a relaxed tone: "But speaking of which, before coming here this time, Mr. He and I both felt that you could definitely help us overcome this trouble." HeyIm not a machine Chang Haonan originally wanted to say that he was not a Doraemon, and he could find everything in his magical pocket, but then he thought about it and was not sure whether Doraemon had been introduced to China these days, and even if it had been introduced, Liu Gaozhuo would probably be older than him. I havent seen it, so I have to change my story: Its not Aladdins magic lamp. Just make a wish on it and youll get everything. Before today, I really thought you were In the following period of time, Chang Haonan finally realized what the trouble of being famous is ?Many of his previous achievements were either not very eye-catching, or it was inconvenient to promote them. But this time its completely different. The reputation in the field of theoretical mathematics is worthy of a special mention. By the way, you can also find out what is going on with Chang Haonans incredible resume. A mathematician. What happened to getting good grades in your 20s? ??Whats wrong with cross-border efforts to develop algorithms and software? It would be reasonable to study numerical calculations again, right? In the eyes of most people, the identity of a mathematician is basically equivalent to that of a magician, and they do not think about it in any further detail. ?However, doing so also brings some side effects. Although the school has turned down most of the invitations for him, there are still many people who can contact him directly. Not to mention anything else, there are dozens of well-known universities at home and abroad that have invited him to give lectures. As well as various top conferences, academic forums, honorary degrees... Even the French Academy of Sciences, which had been in the spotlight because of that paper, contacted Chang Haonan through Jean-Christophe Yorkz and asked him if he was willing to accept the title of a foreign academician... Actually, if I have to say it, a considerable part of the honors can be received. ??For example, the Madison Medal issued by Princeton University, the honorary doctorate awarded by Columbia University, and the foreign academician of the French Academy of Sciences. These do not require Chang Haonan himself to actually do anything. There is no need for him to even go abroad. But not now. ?At the moment, Poincar''s conjecture is the hottest thing in the academic circle. As long as one of these things is connected, the rest will be endless. ?For example, if you accept the title given by the French Academy of Sciences, can you not accept the title given by the Royal Society? ??If you dont want to, are you looking down on our British mathematical community? In short, this situation lasted until the end of June, and Chang Haonan really couldn''t hold on any longer. ??He left all similar liaison work to Tang Lintian and Liu Chenchen, while he directly dealt with it ??Taking the opportunity to check the turbofan 10 test data, I went to Shengjing to avoid the limelight. Mr. Chang, we thought you wouldnt be able to come this month. As usual, Liu Yongquan accompanied him during the trip to Institute 606. Forget it, if those people werent so enthusiastic, I probably wouldnt have come this month. Chang Haonan waved his hand with lingering fear: "The result... it''s so scary. The work email in my school is no longer usable. I wish it would be filled with emails every day. The worst part is that I can''t read emails as fast as I can receive them. quick" Liu Yongquan directly made a tactical retreat. When I look at it, I guess we dont have the destiny to be an academic star, so we might as well come here and do something down-to-earth... After some chatting and laughing, the two quickly got down to business: Mr. Chang, Snecma sent several more representatives over two days ago, saying they wanted to sign a longer-term cooperation agreement with us. Longer term? ?Chang Haonan didn''t understand the meaning for a while. Liu Yongquan explained: Didnt the agreement we reached before only include the basic model of M88-2? This time the French are ready to discuss cooperation on subsequent improved models. Ah this ?Chang Haonan showed an expression that he couldnt bear to look at: How come there is such a sudden change in attitude? In the process of cooperating with China, Snecma himself also had ideas. Obviously, we plan to use the entire usable model on Rafale first, and then slowly study and modify it on our own. Chang Haonans attitude toward this idea is one of respect and blessing. ? ? We are all independent countries, and it is normal for us to have different positions. Therefore, in business, as long as you give the money that should be paid and the profits that should be shared, you will not be able to interfere in the future. In the end, it only took a little more than half a year, but the other side performed another sliding kneeling. Even for the French, this is a bit too frequent. Thisthere are indeed some rumors, but they are not true. Liu Yongquan lowered his voice slightly: Didnt you point out before that the turbine disk may be damaged after 1,000-1,500 cycles after an overhaul? ?Chang Haonan nodded. After Snecma returned, he conducted a ground experiment using two overhauled engines. Liu Yongquan continued: As soon as the cycle time exceeded 1,000, the hot end of a test machine exploded. It is said that it even damaged a lot of equipment in the aviation development test center..." Chang Haonan was shocked after hearing this. I am directly a woc at heart This problem with the CFM56 core machine was actually something he had seen in the information in his previous life, and it was only finally solved at the beginning of the 21st century. ??However, none of the failure records mentioned that it would be so serious as to explode directly on the spot. I guess this explosion... has completely blown away the spirit of the French people. Liu Yongquan reasonably speculated: This is a test on the ground, so it can be kept secret. If something goes wrong in the sky, it will be a shame. And its still a common problem. Its not an occasional malfunction. If it were really exposed, let alone exported, the French Air Force itself would probably not be willing to accept it..." (End of this chapter) Chapter 846 teach the french a lesson Chapter 846: Teach the French a lesson ?Hearing Liu Yongquans explanation, Chang Haonan suddenly understood. This is because I was frightened. ?However, Im afraid its not exactly what the former said. In the process of aircraft engine research and development, it is normal for accidents and even some casualties to occur. ??France is also a long-established aviation power, so it will not be frightened simply by blowing up an engine. But once combined with Liu Yongquans pretense during the previous negotiations, the effect is very good You have been developing something at home for more than ten years, but others come up and say a problem that you have never heard of. Going back to test it, I found that the situation was exactly the same as the other party described. At this time, the focus is no longer on whether the problem at hand can be solved. Even if I could, I would never be able to feel at ease. The mentality at this time is definitely: Since people can see such a big problem at a glance, if they take a closer look, shouldnt they be able to see more? What''s more, it is absolutely impossible for Snecma to find a solution so quickly. Without a comprehensive traceability of the aircraft engine''s life cycle, who would have thought that an inconspicuous electrochemical mark during the overhaul process would directly affect flight safety? You should know that only a very small number of the latest models of engines using CFM56 or its derivative core engines will use heat-resistant coatings that are prone to arcing. Even General Electric itself may not have solved this problem at the moment, or even discovered it. Let alone the French. So, for the Rafale fighter jet, a project that they could not afford to lose at all, they still chose to find foreign aid. Thinking of this, Chang Haonan asked directly: Then what conditions did they set for coming here this time? For him, it is about expanding on the basis of the existing contract. ?As long as the price is right. Talk, you can talk. And Liu Yongquan was obviously well prepared. ?After hearing Chang Haonans question, he immediately took out a file bag from the briefcase at hand: I was planning to submit the memorandum of the meeting to the group when I went to Beijing for a meeting next week, but just in time for you to arrive in Shengjing today, I brought it over directly. After the restructuring, not only the aviation power group itself has stronger independent management rights than the previous head office period, but also the following secondary companies. ?While the decision-making power of the group leadership is still important, at least it is not as demanding as in the past. ? Like this time, Institute 606 can first contact Snecma representatives and then report the situation to the group for decision-making. And if it does not involve foreign trade, it does not involve military products. ?For example, Shengfa Groups QD130 gas turbine for power generation is currently the flagship product. ?Then the autonomy will be greater. Just report the business situation on a regular basis. ?Chang Haonan took the file bag and opened it. Euro 250 million advance payment, joint development throughout the life cycle, sales divided in proportion Sincerity is okay... After reading through the contents of the memo as quickly as possible, he raised his head again and looked at Liu Yongquan: Old Liu, what do you think? ?Although the design of the Turbofan 10 has not yet been officially finalized, it is actually just short of saving enough hours for early batch trials, so Liu Yongquan can already devote a considerable part of his energy to cooperating with the French. In this way, no matter what decision is made, the opinion of the specific executor must always be sought. Liu Yongquan did not answer immediately. Instead, he walked forward while lowering his head and thinking. After some careful consideration, he spoke: From the perspective of performance indicators, the calibration given by the French is quite conservative. Obviously the temperature in front of the turbine and the stage pressure ratio of the compressor are not bad, but the maximum thrust is only 7.5 tons. There is definitely potential for upgrades. Chang Haonan nodded: Now, have you found the reason why Snecma chose to lower the thrust on the M88-2? The first model of M88, M88-1, is generally a third-generation and semi-mid-thrust engine whose performance meets the technical level. But the later M88-2 had a considerable decline in paper performance. It is equivalent to using the technology of the third and a half generation, or even part of the fourth generation engine, to build a third generation mid-range version that is comparable to the F404. While talking, the two of them walked around and came to the overhaul workshop of Liming Factory. The M88 prototype that the French shipped over at the beginning of the year is kept here. Mr. Chang, would you like to go in and take a look? "good." A medium-sized turbofan engine is quietly placed on a special engine bracket. ?Its cold end and hot end have been separated, and it has obviously undergone more than one round of disassembly and research This is why the French initially had some concerns about joint research and development. After all, asking someone to dismantle their own engine like this is basically equivalent to asking the French lady to take the initiative to lift the bottom of her skirt and expose her underwear. ?Chang Haonan stepped forward, bent down and took a closer look. Design, of course, cant be seen. ?Then you have to look at the drawings. ?However, it must be said that as an old industrial power, the French are still capable in the field of production and manufacturing. Even though Liming Factory has installed a batch of new equipment, if we only look at the fineness of workmanship, there is still some gap between the Turbofan 10 and the M88-2 in front of us. ?However, this seems to show the outrageousness of the French design... It was only then that Liu Yongquan, who was standing behind Chang Haonan, answered the formers question: "During this period, we have checked the design data of the M88 engine and this prototype. The preliminary conclusion is that the French had some problems with the matching of the fan and the high-pressure compressor, resulting in the effective pressure ratio of the entire engine not being The pressure is higher than that of just taking it out. "The other issue is what you said when you decided on the overall plan of Turbofan 10. The corner area inside the channel has low-energy fluid from the end wall driven by the pressure difference between the pressure surface and the suction surface. These low-energy fluids gather in Flow separation is easy to occur under reverse pressure gradient, and mixing with the mainstream will cause blockage of the compressor channel. " In this case, whether the air flow through the compressor is too small, too large, or changes too fast, it may induce corner stall and then surge. Of course, more quantitative data will not be known until we send this engine to the 624 Institute for bench testing... ?Chang Haonan has understood. ??Although the appearance of this problem is different from that of the original Turbojet 14, the essence is very close. They all relied heavily on other peoples compressor designs, but they were beyond their own capabilities and they didnt know how to modify them to suit local conditions. Finally, basic performance can only be guaranteed by reducing push: So they just directly limited the maximum speed of the engine? "right." Liu Yongquan nodded: They directly cut the maximum speed by nearly 20%, avoiding the upper limit of corner stall. But no matter what, the lower speed limit is impossible to avoid, so if the M88-2 is maintained at medium and low thrust for a long time, or the throttle lever moves too violently, it is still possible to cause a rotational stall or even surge. Hearing this, Chang Haonan couldn''t help but smile and turned to look at Liu Yongquan: Then they have found the right person... In terms of dealing with end zone flow problems of axial flow compressors, apart from Chang Haonan himself, the second most experienced person should be Liu Yongquan. ??The latter, who was suddenly praised, touched his shiny head with some embarrassment: Having experience with Turbofan 10, I am relatively confident that we can solve the problems with the M88 compressor by directly modifying the design of the high-pressure compressor. "Eh" ?Chang Haonan quickly waved his hand: This kind of problem cannot be solved too neatly. Liu Yong was completely puzzled, but he still waited for Chang Haonan''s next explanation. We have completed the work in three strokes, five strokes and two divisions. The French may think that the work is simple and not feel our level. Chang Haonan said: Furthermore, sending the improved plan directly is equivalent to throwing away our bargaining chip, and the subsequent initiative will be in the hands of the opponent. So, this matter can be done in three steps. At this time, Liu Yongquan suddenly interrupted Chang Haonan: Wait a minute, Mr. Chang Then he took out a pen and notebook from his pocket: "You say." "The first step is to change the current M88-2''s electrochemical label to a fluorescent label, and then design several sets of suction holes on the end arm of the engine casing to dispose of the low-energy fluid. This method I should have originally I also said..." Open suction will cause a loss of about 8-10% of the inlet flow... Is that true, Mr. Chang? Liu Yongquan obviously remembers the knowledge points very well. "Yes, but after this design, the speed can be added back, so it will be better than the current disabled state. Even if it is installed on the carrier-based Rafale M, it will not have much negative impact on the performance. And there wont be any big problems with safety. Chang Haonan continued: "The second step, M88-3, is to modify the blade shape at the end of the high-pressure compressor blade to control the total flow loss, especially the distribution of spanwise flow loss, so that the suction surface boundary layer is stronger than the end wall boundary layer. In this way, the set of open suction holes can be eliminated, the performance can be restored to the original M88-1 level, and the lifespan can be extended to normal levels. " At this point, we can also conduct some technical verification for our countrys fourth-generation medium-sized vehicle. "The third step is to get to the final model M88-4, and then consider using a swept design and end-arm closed suction to squeeze out the hot-end performance potential of this engine as much as possible and see what level of product we can come up with. Come." In this way, for at least the next 8 to 10 years, the power upgrade of the French main fighter jets will be in our hands. Although it is not a final weapon, it is at least a powerful bargaining chip..." ?Liu Yong wrote quickly and quickly wrote down the key points that Chang Haonan said. When the latter saw this scene, he suddenly thought of a famous scene... Repeat it to me. The first step is to change the electrochemical labeling to fluorescent labeling (End of this chapter) Chapter 847 Carbon fiber reinforced resin matrix composites Chapter 847 Carbon fiber reinforced resin matrix composites To avoid the limelight, and of course to follow up on the M88 engine cooperation project, Chang Haonan stayed in Shengjing for nearly a month and did not return to the capital until early July. ?At this time, it proves that the popularity of Poincars conjecture has gone down a lot First of all, this is because theoretical mathematics is relatively far away from life after all. As time goes by, people will naturally not pay attention to a topic that they do not understand. Secondly, the two authors of the paper disappeared at the same time after the mathematical community determined that the proof process was effective. Chang Haonan at least appeared once in a CCTV interview, and Perelman directly found out that this person was not there. As a result, the smooth combo of "lecturing - awarding - adding titles" that was supposed to be played got stuck in the first step. ?Even if some media want to follow up the report, they cant find a focus. ?Of course, in the final analysis, although the proof of the Poincar Conjecture is very long, it is not difficult to understand. Even without the certifiers personal teaching, many people can still understand it. Unless you want to integrate the theoretical tools in the paper, it will be more difficult. So objectively speaking, there is no particularly strong motivation in the academic world, so these two people must be picked out. As a mathematician, having a weird temper would be more in line with peoples stereotypes. ?If it were really normal, the filter would be shattered all over the place. In short, when Chang Haonan returned to the capital again, the commotion caused by Chang Haonan was relatively small... Professor Chang, I want to take a vacation... ??On the first day of Chang Haonan''s return to work, Liu Chenchen put the work report of this period on the former''s desk with a look of despair, and then asked. In fact, as a scientific research unit affiliated with the school, the Torch Laboratory, at least in theory, has one month each in winter and summer vacations. ??But the boss had specially assigned a task before leaving, so it was impossible for her to give up and leave midway. So I was bombarded with calls, emails and letters for more than half a month. Finally got over it. "Can." Chang Haonan looked at Liu Chenchen, who looked haggard, and knew that Liu Chenchen had been suffering recently, so he agreed very simply: "But before I go on vacation, I have to register the things on the list that Li Yabo gave you before." ?About three months ago, Li Yabo expressed his desire to study topics in the field of composite material microstructure, so he ordered a lot of equipment and experimental materials. ?Most of the things have arrived one after another, and many of them need to be registered as fixed assets. This fact cannot be delayed. Its basically all done. Liu Chenchen replied: Only one surface measuring instrument imported from the British company TaylorHobson has not yet arrived, but that one is expected to be produced in September, and the next semester has already started. Well, have a nice holiday. ?Chang Haonan is not a devil after all, and he should still be given the vacation he deserves. After seeing off Liu Chenchen who almost skipped out, Chang Haonan also left the office and strolled all the way to the Compressor Research Center not far away Since there is really no way to plan another piece of land to build a building on the school campus, the experimental projects of the Torch Laboratory are temporarily placed here before moving to a new site in the suburbs. Fortunately, the Compressor Research Center does not have many people and equipment. Currently, only a group of technical personnel from the Turbofan 10 project are conducting testing work here. So there is enough space. ??When Chang Haonan came to the laboratory, Li Yabo was concentrating on operating a carbon dioxide laser. ?The former took a closer look and found a piece of black CFRP (carbon fiber reinforced resin matrix composite) laminate that had been laid out on the operating table. Appears to be ablation carving. In more than 20 years, this equipment will evolve into a CNC machine tool that can work fully automatically as long as the parameters are set. But at this moment, the computer can still only play an auxiliary role, and some manual work is still needed to ensure the accuracy of the operation. So Chang Haonan just stood behind Li Yabo and watched, and did not speak rashly. Otherwise, if the latter''s hand shakes, a board worth several thousand yuan may be scrapped. ??Torch Laboratory is indeed wealthy, but it still needs to save where it should. ?About half an hour later, Li Yabo, who had some sweat on his forehead, finally finished the laser engraving operation and took the CFRP board off the operating table. With the naked eye...there is basically no difference from the previous one. So there is a microscope not far away. After moving to the new laboratory, Chang Haonan will definitely build a separate electron microscope center. However, the relocation of such large equipment is extremely troublesome, so at the headquarters, we can only use ordinary equipment to support it first. Fortunately, the requirements for observing the surface of carbon-based composite materials are not demanding, and a good-quality optical microscope can suffice. Li Yabo was about to take the sample in his hand for testing, and it was only then that he noticed Chang Haonan behind him. "teacher?" Not surprisingly, he was taken aback: When did you come? Well...its been a while. Chang Haonan replied: Its probably around the time you start burning the boards. Li Yabo calmed down a little, and then walked towards the microscope and explained: I am testing the removal of excess resin-based material using laser ablation. Because in CFRP materials, the thermal and photophysical parameters of the carbon fiber reinforced phase and the matrix phase of the resin material are very different, so after the lamination is completed, laser treatment is generally used to selectively remove the matrix phase..." ?Chang Haonan did not interrupt the other party, but just listened quietly. ??Even though he actually knew what Li Yabo said. The heat generated by laser processing will preferentially diffuse into the material along the carbon fiber. Since the heat transfer performance and vaporization temperature of carbon fiber are an order of magnitude higher, when the temperature of laser ablation reaches the vaporization temperature of the resin matrix, the carbon fiber can still Remains solid and conducts heat stably. The principle is somewhat similar to using laser to remove melanin for whitening in medicine. ?However, for Li Yabo, a new scientific researcher who has just entered the laboratory, everything is still in a new state, which is when the desire to talk is strongest. "Well" ?His eloquent voice stopped abruptly. Then he sighed softly. Apparently the results of microscopic observation are not very satisfactory. Whats wrong? ?Chang Haonan came to the side and noticed that nearly ten CFRP boards had been piled here. One of them was placed in a separate bag. It seems that Li Yabo has spent a lot of time on this experiment. Well...thats it. I found that although the carbon fiber will not vaporize along with the resin matrix during the ablation process, as the continuous laser irradiation time becomes longer, the carbon fiber near the ablation incision will be oxidized. Although the ordered surface measuring instrument has not yet arrived, even with an optical microscope, it can be seen that this oxidation will cause the surface morphology of the carbon fiber material to change, and the performance will also deteriorate. This is actually hardly an achievement, but considering that Li Yabo returned home after his defense last month, and it didnt take long until he returned to school and started the experiment, it can be considered a gratifying progress. (End of this chapter) Chapter 848 Li Yabos discovery Chapter 848 Li Yabos discovery After listening to Li Yabo''s explanation, Chang Haonan also walked forward and took a look in front of the microscope''s eyepiece. As expected, we found that around the ablation points on the CFRP board, the surface of the carbon fiber fabric had some bumps and pits, but because the background was black, we couldnt see it more clearly: It seems like theres carbonization and theres also stringing and cracking? If the problem is only carbonization, it is relatively easy to deal with. Just refer to the idea of ????welding directly and process it in an inert gas environment. ??But if it is still accompanied by cracking, it means that it is a problem with the thermal properties of the material itself, even if it is thrown into vacuum processing. We can only consider solving the problem fundamentally. This is what you can see with your eyes. Li Yabo nodded: "In addition, I have also measured the mechanical properties and found that the static strength, especially the anisotropic tensile strength, will drop a lot, so I suspect that there is a delamination problem inside the material due to colloid failure, but this requires a probe. The needle can be seen in detail, and I have an appointment for next week. If the laboratory does not have equipment, it can only be handed over to a unified testing agency, and the efficiency will definitely be affected to some extent. ?However, this problem has no solution for the time being, so Chang Haonan decided to focus on other aspects first. What about lowering the label? He picked up a CFRP board from the side and asked Li Yabo. Just like some defective CPUs will have a few cores removed and sold as lower-end models, if the T700 that failed to be processed can still be used as a T500, then a higher loss rate may not be unacceptable. However, the latter immediately gave a negative answer: No, the degree of performance degradation is very unstable. Sometimes very different performance parameters can be measured at different locations on the same board. At least in the aerospace field, this risk cannot be taken. That really seems to have no practical value Chang Haonan had no choice but to give up this second-best idea. In 2000, China was still striving to move from a subsistence level to an overall well-off society. Products such as carbon fiber bicycles or fishing rods obviously could not find a market. At this time, he suddenly thought of the electric discharge machining technology at Liming Factory, which had faced similar problems at the beginning. Its a pity that carbon fiber is much more delicate than metal. Problems such as cracking and delamination cannot be solved by polishing. ?However, the ideas can be used for reference. Have you ever considered using a thinner laser beam and then gradually punching out the hole in a circular or spiral path? Chang Haonan suggested: In this way, the laser does not continuously act on the same point, and the ablation effect should be weakened. "I tried." ?Li Yabo took another CFRP board from the sample rack next to it and handed it to Chang Haonan. Compared to the ones we just saw, the thickness of this board is much thinner. It is better to say that it is a piece than a piece. Chang Haonan estimated it with the naked eye and found that the thickness may not even be one millimeter... Literally as thin as a cicada''s wings. ?However, if what was done before can only be called progress, then what the board in his hand represents can be regarded as a serious achievement. Of course, the specific application value will be discussed separately. On boards that are 0.5 mm or thinner, this really works. Li Yabo said as he carefully took the thin plate from Chang Haonan''s hand and shined it on the light on the top of the laboratory. Even slightly translucent. Then he continued: However, for such a thin plate, even mechanical processing is very easy, and the thin plate itself has almost no practical value, and it is too thin even to be used as an aircraft skin. "But if the board is thicker, such as 5 millimeters or even 1 centimeter, then whether it is circumferential cutting or spiral cutting, it will not be possible to complete the processing in one cycle. And if it is repeated many times, the thermal effect will accumulate, and the final result will be The result is still similar to what you saw before. "In addition, if you want to drill holes instead of just removing excess base material, this cutting method can only handle holes of up to 2mm, whether it is bolts or rivets... No. , composite materials have no ductility and are inconvenient for riveting... In short, the subsequent processing is also very troublesome. In the end, it is better to use special tools for mechanical removal. " Yes, the reason why the application of carbon fiber is difficult to increase is mainly because the method of processing carbon fiber is almost the same as processing metal. However, the characteristics of carbon fiber determine that using ordinary tools can easily cause material tearing, fiber pulling out, and excessive residual stress. Therefore, the processing costs and labor hours of carbon fiber parts, especially carbon fiber structural parts, have remained high. Even long-range wide-body passenger aircraft with high prices and extremely high profit margins cannot help but use them in large quantities. Until more than 20 years later, the most mainstream composite processing method is still mechanical processing. It is just that technicians have greatly reduced processing losses through years of massive practical experience and vigorous mechanical calculations. However, these two methods were obviously unqualified for China in 2000. That''s why Chang Haonan suggested that Li Yabo focus on some strange skills. Such as laser or water jet. The latter was strategically abandoned after checking some information. ?So the only way left is laser processing. Just as far as Li Yabos experimental results are concerned, the current effect seems to be worse than mechanical processing. The latter has no thermal effect at least... ?However, Chang Haonan was not too anxious. ?According to the original timeline, the real "large-scale" application of carbon fiber composites in the aerospace field, especially when it comes to structural parts, will only happen after 2010. So, he comforted the somewhat disappointed Li Yabo with a few words: It doesnt matter, your project has only started less than a month ago, and there is still plenty of time Chang Haonan found a chair to sit down as he spoke, and continued half-jokingly: Besides, based on your current achievements, you can probably directly invest in Nature... What he actually wanted to say was that he could submit his paper to Nature Materials, a major journal of Nature. But as he was about to speak, he remembered that this journal was only founded in the early 21st century. So it stopped abruptly in the middle of the sentence. Nature is still too difficult... Li Yabo thought Chang Haonan was talking about nature itself, and immediately shook his head: Using laser to process carbon fiber is an idea that someone proposed about four or five years ago. I just pushed it a little further, and processing ultra-thin plates has no application value. Chang Haonan waved his hand: Its just because it has no application value that I let you distribute it casually. If it was really useful, you would have to register a patent... Then without further explanation, he simply returned to the topic of the paper: You can use TORC Multiphysics or Materials Studio to do a few dynamic simulations. The accuracy of the results is not a big problem, as long as it can be explained from a qualitative perspective. Then we can send a JACS, or wait and send our own JCAS..." ?MaterialsStudio is a numerical calculation software developed by Accelrys in early 2000. Because it specializes in molecular dynamics calculations and also draws on a lot of content from TORC Multiphysics, its performance in this field is no worse than the latter. ?But this time, Li Yabo did not continue what Chang Haonan said, but suddenly changed the subject: Speaking of simulation, teacher, I did use TORCMultiphysics to simulate the effect of superheated ablation on CFRP materials. "what''s the result?" Chang Haonan does not have high expectations for the simulation accuracy of non-metallic composite materials. ?Li Yabo has now sat back in front of the computer: As usual, in order to speed up the calculation, we only simulate the ablation effect of 10ms. Indeed, as you said before, the accuracy on carbon fiber is very poor. "But a few days ago, I once entered the wrong simulation duration before going to bed. I entered it as 1000ms, which is 1 second, and then the next day I found that the computer had already calculated it all night. As a result, the accuracy of the simulation was better than It was much higher in the past. "Later, I conducted several different tests in groups, and found that in general, the longer the simulation time, the higher the accuracy compared with the experimental results. I guess it may be because there is some kind of highly random mechanism. Its more obvious in the short term, but it will tend to average over time ?Chang Haonan was already ready to leave. But when Li Yabo said this, he suddenly stopped again. (End of this chapter) Chapter 849 Super performance of passive skills Chapter 849: Super performance of passive skills Li Yabos guess can be regarded as a common phenomenon in molecular dynamics and even in the entire field of microphysics. Due to the existence of irregular thermal motion, the motion characteristics of a single molecule in a very short time cannot be accurately predicted. Once a large number of molecules form a macroscopic substance, it will have relatively stable apparent physical characteristics. Just like the molecular simulation mentioned by Chang Haonan just now. ??If you only focus on one or ten molecules and study it or their actions in the next lattice relaxation time, then even if the whole process is completely correct, the results will most likely be irrelevant to the experimental results. However, if the scale of the research object and the research time are increased by a few orders of magnitude, even if it is still very outrageous at the quantitative level, it can often provide guidance at the qualitative level. ?However, when it comes to the phenomenon that the two men just discussed, this explanation seems a bit far-fetched. Because 10 ms is already a long "macroscopic time" for molecular motion, and the research object is also a multi-layered molecule near the surface, it should be enough to offset the error caused by Brownian motion. ?Thinking of this, Chang Haonan put down the briefcase he had picked up again and returned behind Li Yabo: Let me take a look at the simulation results. Ordinary PCs these days have limited running speeds. If you want to open more complex numerical calculation software such as TORC Multiphysics or Materials Studio, which even has a graphical interface, you have to wait for a while. Fortunately, although Li Yabo has not been in the laboratory for a long time, he has good habits and has the habit of sorting out data after each work. ?So soon, an Excel data sheet appeared in front of Chang Haonan. ? There are even screenshots of simulation results at key locations. It feels like...the 10ms results are not completely irregular... Chang Haonan looked at the dense tables in front of him and felt that it was not as exaggerated as he thought, so he asked: Have you ever tried a shorter exposure time, such as 1ms? Hmm Ive tried it on software. ?Li Yabo said and clicked on another worksheet in the Excel file: However, there is no way to carry out experimental control, so it cannot be regarded as valid data. Our equipment is a continuous laser source and does not support a single irradiation time of less than 10ms. The instruction manual says that if the setting value is less than 5, the time error will become larger and it will cause unnecessary high load on the laser. In addition, according to the literature I have collected before, laser irradiation of 2ms or lower cannot produce sufficient thermal conductivity for CFRP boards, and effective processing cannot be achieved at all. ?Chang Haonan did not answer immediately, but clicked on several other worksheets in sequence. It was found that indeed in the simulation of 1000ms or longer, the results fit the experimental data quite well. Of course, its not bad in the physical sense. In molecular physics, an R^2 value of 0.8 is already a high value. As for results starting with 9, or even several 9s, it is something that one would never dare to dream of. In short, at least in terms of thermal processing, the accuracy of numerical calculations is much better than what Chang Haonan had previously estimated. The errors between 10ms and 100ms suddenly become larger, which may be explained by... When high-energy rays irradiate the material surface, in addition to the thermal effect, there is another mechanism that simultaneously produces a removal effect on the material. ??If the irradiation time is relatively long and the carbon fiber is enough to conduct heat to the interior, the effect at the macro level will be mainly thermal effect. So the numerical calculation results fit well. When the irradiation time is very short, the thermal effect has not had time to be reflected, or it has not been fully reflected, so the effect of another mechanism is reflected. As a result, numerical calculation results fitted based on pure thermal effects begin to deviate. The shorter the time, the fewer components of the thermal effect, and the worse the fitting results. Reasonable. Very reasonable. This is also the main weakness of numerical calculation methods. There is nothing we can do about the principle being a black box, or even though it is not a black box, there are multiple mechanisms that interact with each other and no one is the dominant process. ?So, the next work is to find this mechanism that coexists with the thermal effect. Considering that it can show its effect in a very short time of 10ms, Chang Haonan boldly speculated that it is likely to be a real instant effect. That is to say, it produces an effect every time a high-energy ray is irradiated on the material surface, regardless of the subsequent irradiation time... Then we need to get a new piece of equipment... ?Chang Haonan turned his attention to the continuous laser processing equipment not far away. It is known that the relaxation time of electrons to the crystal lattice is approximately on the order of picoseconds (10^-12 seconds). ?So before the thermal effect shows obvious effects, to observe the new mechanism alone, at best, a pulse laser with a period of less than nanoseconds is needed... Taking into account the experimental speed, it is best to use picoseconds or even femtoseconds Li Yabo has also said before that according to past research, the continuous laser processing effect below 2ms is very poor. That means that the single action effect of this new mechanism is very poor. It takes a number of times to pile up. In the same period of time, the number of irradiations of the picosecond laser will be 500 million times that of the 2ms laser... About ten minutes passed. Chang Haonan finally came out of his thoughts. Then I heard a slightly panicked voice next to me: Teacher, teacher? Its Li Yabo. "Um?" ?Chang Haonan turned his head and saw his disciple looking anxious, holding a roll of toilet paper and a glass of water in his hand. Teacher, you... At this time, Chang Haonan realized that he was already sweating. The shirt stuck to my skin. Apparently it has undergone intensive heat dissipation. OhI just thought about something. ?Chang Haonan took the toilet paper, pulled off a few pieces and wiped himself. He quickly remembered that when his theoretical level was promoted to LV4, the system had reminded him that when studying an unknown phenomenon within the scope of his ability, there would be a certain probability of being able to see through its essence. ?Looking back now, the sudden wave of inspiration just now should be due to this "certain probability" happening to play a role. Its simply amazing. Abo. ?Chang Haonan took a few deep breaths and drank some water to calm himself down a little: I think we can really write an article on the thermal effect mechanism of laser ablation. ?Laser processing should be considered a popular direction in the field of materials science at this time, but the research focus is mainly on thermal effects. The mechanism just speculated by Chang Haonan, even if he was not the first to do so, at least has not received widespread attention. In this case, its better to just go with the flow. Let everyone continue to go a little further in the direction of thermal effects. ?Even if someone discovers the secret in this in the future, there is nothing that can be said ??I didnt falsify the data, I just revealed the mechanism of laser thermal effect. ?Can you still blame me for studying too deeply? After a brief pause, Chang Haonan continued: "Although your current data volume is still a bit small, I think you can add the effects of different wavelengths, different laser beam incidence methods, and different gas environments on the processing effect later, and then explain the reasons for this effect from a microscopic mechanism, such as Epoxy resin molecules must have different absorption rates for different wavelengths of laser light. Also, the chemical bond energy between CFPR molecules should be exactly within the energy range of visible light, so infrared incidence cannot directly break the bond, and can only promote thermal melting through the photothermal effect..." ?This time, he did not activate the passive skill. It is estimated that the physical condition does not support frequent activation in a short period of time. After all, the amount of sweating just now was indeed a bit abnormal. ?But its not a big problem. For Chang Haonan now, it is not difficult to write a paper in materials science, even a high-level paper, as long as there is sufficient funds. Whats more, there are real materials in it. It''s just a slight deviation in the direction. Li Yabo next to him was holding a small notebook and taking notes while listening. Of course, what Im talking about are just a few ideas that I just thought of. You can expand some more, and its best to come up with a mathematical model. ?Chang Haonan put down the paper cup: If you can do it well, it might be a Nature article. "ah?" Li Yabo stopped writing and raised his head: Is it really Nature? Youre going to graduate too. Chang Haonan smiled: One Nature article is enough. "graduate" ?Li Yabo was in a trance for a while. He has only graduated from undergraduate degree one month ago, so why is he already thinking about graduating from graduate school... "What I mean is...didn''t you say before that we have a domestic journal that is under preparation? You are the editor-in-chief." You said JCAS Chang Haonan replied: By the time its officially done, your article will have been published long ago. Besides, Im the editor-in-chief, so when you publish articles on it you still have to avoid suspicion In fact, these two reasons certainly cannot be said to be false. Its just that there is a more important reason ?The influence of Nature is greater, and it is easier to lead subsequent colleagues to the direction of thermal effects. Its just this kind of operation that Li Yabo doesnt need to know yet (End of this chapter) Chapter 850 The beginning of the food war Chapter 850 The Beginning of the Food War After assigning the task to Li Yabo, Chang Haonan left the compressor research. Studying thermal effects is a relatively simple and straightforward part that can be left to students. But that new mechanism Considering that it corresponds to the thermal effect, it can be tentatively named the cold ablation mechanism. After all, it may involve a completely new theory, so Chang Haonan still has to do it himself. ?So... Since we want to engage in materials research, the prerequisites are naturally equipment and materials. Even if Chang Haonan has a system, it will be the same. According to his speculation just now, the cold ablation mechanism is strongly related to the basic theory of molecular dynamics. ?The research equipment needed cannot be obtained by these small efforts now. In addition, in addition to equipment, several researchers who are not students and are dedicated to scientific research may also be needed. ??As well as postdocs. ?Of course, these all have to rely on the new laboratory under construction. Otherwise, there would be almost no room for people in the school headquarters, not to mention the equipment. After sorting out the primary and secondary relationships here, Chang Haonan turned directly and went to Tang Lintian''s office. The latter was flipping through a document at this time. Judging from the two newspapers on hand, I am afraid they were delivered just now. Hearing footsteps approaching from far away, Tang Lintian raised his head and saw Chang Haonan appearing at the door. Professor Chang? He put down the pen and documents in his hands: Youre a rare visitor...why do you have time to come to my place today? ?The last time Chang Haonan took the initiative to go to Tang Lintian''s office was when he had not even graduated from his undergraduate degree. ?It also indirectly caused the location of the latter''s can of good tea to be exposed, and was eventually beaten to the autumn wind. ?At that time, Tang Lintian was still the dean of the School of Aeronautical Science and Engineering. The two of them met afterward, either outside or in Chang Haonan''s office. Something about the new laboratory. Chang Haonan sat directly opposite Tang Lintian''s desk, and the latter took out a tin can from a corner of the filing cabinet as usual. ?Du Yishan has retired, and neither Chang Haonan nor Liu Zhenxiang drink tea much. ??As the principal of Jinghang, there is a high probability that no fourth person will dare to come directly to him to challenge the autumn wind. Chang Haonan was not in a hurry. While waiting for Tang Lintian to make tea, Chang Haonan inadvertently glanced at the two newspapers placed next to him. The US Department of Agriculture issues a warning: Abnormal drought may reduce soybean production, and we need to be alert to the harm caused to humans by extreme weather Global warming is an urgent problem, the US Department of Agriculture issues a production reduction warning ! Chang Haonan was shocked when he saw these two titles. He had seen a similar plot in his previous life. It can be regarded as the first round of offensive launched by the United States at the strategic level after China joined the WTO. But that time seemed to have happened around 2004. Now that China has joined the WTO one year ahead of schedule, Americans who have suffered some losses in the past few years are obviously a little bit restless. So its only been three months, and I cant wait to do something. The two cups of tea were quickly placed on the desk. New laboratory ? Tang Lintian sat back down and was about to continue what he had just said, but he soon noticed Chang Haonan''s eyes looking to the side, so he temporarily changed the topic: It says that soybean futures have risen more than three times last month, and there is no sign of relief. "Um" Chang Haonan nodded absently, picked up the cup and blew lightly: "Although soybeans are not a staple food, they are after all a major oil crop and a semi-necessity for survival. Once there is a risk of insufficient supply of this kind of thing, the price increase will not be based on the relationship between supply and demand, but will continue to increase until some people can no longer buy it. Until then. Tang Lintian originally just picked up two newspapers and read them, but he became interested after hearing what Chang Haonan said: Professor Chang also studies some economics? ?After asking for an explanation, I felt that it seemed reasonable, so I added another sentence: OhI almost forgot that you are still in charge of this large central enterprise ?Chang Haonan took a sip of tea and then shook his head: It has nothing to do with that. I really dont understand economics, but I have read some history. He said and put the teacup back on the table: "During the Spring and Autumn Period, in order to destroy Lu and Liang, Guan Zhong of Qi suggested to Duke Huan of Qi that he buy a fabric called '''', a specialty of these two countries, at a high price, and at the same time dump grains to them at extremely low prices. , and the states of Lu and Liang saw that it was profitable, so they ordered that all the land in the country be converted to Ti." "After only a few years, the grain output of Lu and Liang was basically zero, and they could only rely on imports from Qi. At this time, Duke Huan of Qi suddenly ordered that the entire country wear silk, so that the silk from those two countries could not be sold. He went out, and at the same time he suddenly raised the price of exported grain, which directly caused a round of famine, and defeated two serious enemies without a single blow..." "Historical books say it more obscurely. This operation is called the Battle of Silk, but the core is actually food. After all, people can live without clothes or shelter if they are forced to do so, but if they don''t eat, they will definitely starve to death. " ? Tang Lintian was born in science and engineering, so naturally he had never read "Guanzi", which was relatively unpopular even among pre-Qin works. But after listening to Chang Haonan''s talk about having noses and eyes, I also knew that it was unlikely to be made up on the spot. Besides, there is no reason for the other party to make up such a story to comfort himself. So what youre saying is...the Americans hope that by raising the price of soybeans, our country will stop growing food and switch to soybeans, and then cut off our food supply in a few years..." Halfway through what he said, he felt that something was not right. ?Lu and Liang are just two small countries after all. Huaxia obviously cannot be directly involved. "no no" ?Chang Haonan also showed an expression that he couldnt bear to look at: Our country has control over staple food, and there is basically no way to make decisions about it ?In the last round of negotiations to join the WTO, China and the United States carried out a package of exchange conditions, including opening up most agricultural markets. This also includes staple foods. But with the opening up, the red line of cultivated land and yield indicators are still there. In any case, it is impossible for the whole country to plant soybeans. Tang Lintian thought so and immediately breathed a sigh of relief: Then what do you mean ?Chang Haonan pretended to think for a while, and then answered: I estimate that the other party simply wants to target our countrys soybean industry. "If you think about it, our country''s cultivated land area is not enough. Most of it can only be used to maintain staple food production. Soybeans themselves rely on imports. Now that prices are soaring, soybean farmers must expand their planting area, and downstream companies will also be eager to buy from the international market. Buy soybean futures in case it goes higher. Wait until next year, or the year after next at the latest, and they will announce that production has not dropped as expected, causing soybean prices to plummet ??Although Chang Haonan didn''t finish what he said, it''s not difficult to guess what happened next. Except for a small number of enterprises that are protected by the state, most downstream enterprises may go bankrupt as a result. Soybean farmers who have hurriedly expanded their planting area will obviously also face huge losses. The most troublesome part is In the last generation, China was able to win the staple food war. Although wonderful operations played a very important role, in the final analysis, the nearly 2 billion acres of domestic arable land was the guarantee. No matter how bad the situation is, you wont really be unable to eat. But the soybean industry obviously does not have this advantage. ?The self-sufficiency capacity itself is very weak. Related industries are still dominated by private enterprises and collective enterprises, and there is no way to implement orders and prohibitions like central enterprises. And now stocking up on soybeans Apparently its a bit late too. So, Chang Haonan couldn''t even think of any good solution for a while... (End of this chapter) Chapter 851 Beijing Electron Microscopy Center Chapter 851 Beijing Electron Microscopy Center ?The news in the newspaper is just an episode after all. ?Chang Haonan can''t think of a solution for the time being, but that''s just one aspect. ?Another point is that as a middle- and senior-level manager within the Science and Technology Commission system, it is indeed difficult for him to rashly interfere in issues in the agricultural field. And in the final analysis, agriculture can be simply summarized as land + seeds + fertilizer. ??If these three basic elements cannot be resolved, the room for maneuver at the policy level will ultimately be limited. ??The exchange between Chang Haonan and Tang Lintian just now was more like a standard chat session for middle-aged men than a serious discussion. So after a cup of tea bottomed out, the two of them quickly got back to the topic. By the way, Professor Chang, you just said that you came to me this time about the new laboratory? Tang Lintian asked as he picked up the teapot and added water to the cup. "yes." Chang Haonan nodded: I should have graduated around this time last year, so its been a year. Whats the situation there now? ??The groundbreaking of the new location of Torch Laboratory was basically synchronized with his joining the company. In fact, to put it bluntly, the dumplings were made specifically for this dish of vinegar. Theoretically, the speaker should be Chang Haonan himself. ?But after all, that place is near Shahe, and it will be considered a suburb of Beijing more than 20 years later. Even the fifth ring road has not been repaired these days, let alone. ?Especially for Chang Haonan, traveling now involves a security issue. So he only went there once not long after he started working. The entire construction process is supervised and managed by Beijing Hang University. The main building No. 1 has been capped, and only some internal facilities have not been installed yet. ??Tang Lintian must have followed up on matters related to Chang Haonan personally, so there is no need to ask anyone else: No. 2 and No. 3 Laboratory Buildings... I had just reached the second floor when I went there last week. I estimate that I will have to wait until the end of the year no matter how soon. The living facilities such as dormitories and canteens have been completed, but if you really want to live in it... I still recommend waiting, at least after summer. I went in and took a look, and the smell is still a bit strong. The new laboratory has planned a total of three working buildings connected by covered bridges, all with four floors above ground and two floors underground. ?Originally, according to Tang Lintians idea, he planned to refer to some foreign scientific research institutions to make the building appearance more sci-fi. It can also match the purpose of Torch Labs future-oriented purpose. But later on, in order to meet the deadline, I gave up. Everything else is easy to talk about. Are the water and electricity connected? Chang Haonan goes straight to the point: I have an important research project on hand right now, so I plan to purchase some large-scale experimental equipment in advance. We definitely dont have room to put it at the school headquarters, and it will be inconvenient to relocate it later. Can it be placed directly in Changping? Important research? ?Tang Lintians eyes immediately lit up. ?The person immediately sat upright. ?According to his experience, if even Chang Haonan says something is important, it must be really important. What specific equipment is needed? At the same time, Tang Lintian has already begun to think about how much of the school''s funds can be used flexibly this year. ??And if you complain to your superiors that you are poor again, how much extra money can you make ??Funding applications with Chang Haonans name are generally relatively easy to pass. In fact, at the beginning, some people felt dissatisfied. But soon, this sound disappeared. After all, the rate of return on investment shown by Chang Haonan is simply outrageous. Basically, progress is made in one year, results are produced in two years, and impact is seen in three years. No matter how narrow-minded the leaders of the funding department are, they will not worry about money when they dont have to worry about using the funds they sign to make wedding dresses for others. So now that I have this opportunity, I must take a good look at the Natural Science Foundation of China. Chang Haonan, who was opposite him, of course didnt know that Tang Lintian had already begun to think about how to write a report asking for money. He just raised his head slightly and thought for a while, and then answered with his fingers: "Brand-new supercomputer, high-power variable-band pulse laser, scanning galvanometer, carbon fiber automatic laying machine... Then it is best to have a complete electron microscope center, uh... this may be a bit more expensive, you can also buy one first An ordinary transmission electron microscope and a scanning electron microscope with high vacuum mode. The rest can be added later, but the space must be reserved first, so it will be placed on the second underground floor of the main building..." Even though Tang Lintian had been mentally prepared in advance, he still felt a little nervous when he heard this sentence, which was the same as the name of the dish.ification Until Chang Haonan finished speaking, he had not yet recovered. Principal Tang. ??The former said to himself that Old Tang''s lung capacity was quite serious, and at the same time he stretched out his hand and waved it in front of the other person: If you continue like this, you will be responsible for the global warming... ??Tang Lintian was stunned for a moment, and then he understood the meaning of Chang Haonan''s words. Ahem ?He coughed twice in embarrassment: A lot of the equipment here...has to be imported, right? Thats true. Chang Haonan nodded: At least electron microscopes can only be imported for now. ?Although he has driven the development of many industries in China in recent years, he still has to do it step by step. Especially in some areas that are originally particularly weak, accumulation still needs to be made. It doesn''t exist if you take out an electron microscope directly from your pocket. Fortunately, thanks to the relationship between China and the EU, and of course more importantly, the two sides are becoming more and more deeply bound in some industries and technologies. China is subject to much fewer restrictions in the field of high-end instruments and equipment than in previous generations. Its just the money. It will definitely still cost money. Then just what you mentioned is equivalent to 100 million in local currency, so Im afraid its unstoppable..." ?Tang Lintian feels a bit toothache. In 2000, the entire Beijing Airlines on-campus scientific research funding totaled nearly 500 million yuan. This is already a figure that has doubled from 1999. Chang Haonan just bought a wave of equipment. He didnt even build the entire laboratory, but only worked on nearly a quarter of it... Even if he is the principal, this board is not easy to shoot. Scientific research is like this. Front-line technical personnel only need to devote themselves to the project and concentrate on research, but the back-line personnel have many things to consider... (bushi) Chang Haonan, after all, had experienced the suffering of funding applications in his previous life, so he could naturally understand Tang Lintians difficulty: Such large-scale equipment is basically priced on a one-case basis, so the specific cost depends on the brand, model and negotiation situation. If we give a rough estimate, the complete set of equipment may indeed cost around 120 million. This time, before Tang Lintian could stop his heart and lungs, he added another sentence: However, we are a joint laboratory after all, so our Torch Group will also bear part of the costs. ?Tang Lintian breathed a sigh of relief. But not much. In addition, this electron microscopy center can not only produce scientific research results, but can also bring some economic benefits to the school...and of course our laboratory..." ?Chang Haonan continues to add more money: For example, if you perform electron microscopy tests for people from other research institutions, charging hundreds or thousands of dollars at a time is not excessive, right? If you think about it over a long period of time, you may even be able to earn back your investment in a few years ?This is pure painting cake. Electron microscopy is mainly used in the fields of biology and materials science. Youdao said, "The electron microscope is good, and the paper is indispensable." But now around 2000, these two disciplines have not yet exploded. Even if the electron microscopy center opens its doors to attract customers, it will not be as overwhelming as it will be 20 years later. ?But this reason is mainly to let Tang Lintian convince himself ?Chang Haonan could see that the other party still wanted to invest the money. Just need to bite the bullet. Sure enough, after looking down at the tea in silence for a while, Tang Lintian raised his head again: My impression is that at the beginning of this year, the Ministry of Science and Technology, the Ministry of Finance, the Beijing Municipal Science and Technology Commission and the Academy of Sciences wanted to establish a national-level innovative high-end basic scientific research platform. If you can get this project and you are willing to co-sign with these units... the money problem will not be difficult to solve. (End of this chapter) Chapter 852 Go to Hudong Chapter 852 Heading to Hudong ?The large-scale experimental equipment Chang Haonan wanted, especially the two electron microscopes, were not only expensive, but the equipment itself also had to be specially adjusted for the environment in which it was used. So the form must not be the same as those that Li Yabo purchased before. Make a product list and look at the models and configurations, and then directly pay a deposit and place an order. Rather, it is closer to the arms sales trade that Chang Haonan is familiar with. The buyer needs to send a delegation, or at least a few representatives, to communicate with the other party and determine the details from production to transportation to installation to after-sales before signing a contract. If it were left to China in the past, then if you want to buy this kind of high-end equipment, there will most likely be many usage restrictions attached, making negotiations even more complicated. In addition, Tang Lintian is planning to raise some funds through multi-party co-construction, so the process is even more complicated. Even though Chang Haonan was a very popular brand at the moment, so all the approvals were basically given green light, but it still took two rounds of feasibility studies, totaling more than a month, before the delegation to Europe to purchase equipment was formed. . This way, equipment of different brands and models can be inspected while going through the subsequent fund allocation process. Place the order as soon as possible after the money is approved. As a representative recognized by both Beijing Hang University and Torch Group, and with rich experience in conducting trade negotiations with many countries in the past, Professor Yang Huimei became the deputy leader who actually presided over the work of the delegation. After going round and round, by the time the delegation set off, it was already late August. ?The Torch Laboratory has gradually become more lively The first batch of students in the laboratory, except for Li Yabo who was led by Chang Haonan, were all from other schools. There is definitely no way to join the group before graduation in June. As for the summer vacation period The four teachers, including Chang Haonan, have just finished their student careers and are not devils. There is no compulsory requirement to join the group in advance. So several people came to Beijing Airlines to report one after another in August. ?Among them, Yao Mengnas final and official disciple was still Wan Chuanqing. ??That is, the female student from the Physics Department of Jinling University who participated in the interview with Li Yabo before. Liu Fangping also chose another person in that interview, from Hunan University, named Tan Ruifan. ?Although he and Lei Zhixing did not attend the interview in person, Chang Haonan later compiled the interview information and handed it over to them, allowing them to decide on their own. The latter did not choose from the list, but recruited a junior student from Qinghua University. It seems that the two should have known each other before Lei Zhixing graduated and joined Torch Labs. In addition to three master''s students, there is also a doctorate under the name of Chang Haonan. Wang Jie. ?Graduated with a master''s degree from the research group of Professor Li Zhihong of Bingcheng University of Technology. Originally, he could have continued his Ph.D. studies in the original group. ?However, he had indirect contact with the bearing project hosted by Chang Haonan when he was in the first year of his master''s degree. ?Of course, at that time, Chang Haonan was only in the first year of his Ph.D. ?So Wang Jie didnt have much idea. But two years later, when the latter was about to graduate, he accidentally saw a piece of news. A piece of news from Beijing Hang University. That''s when I discovered that Chang Haonan, who originally graduated from the undergraduate program in the same year as me, had already become a graduate! teach! Grant! La! Still a second-level professor. Even higher than his mentor at the time, Professor Li Zhihong. Thats why his mind became alive again. Fortunately, Teacher Li Zhihong is also a reasonable person and did not put any obstacles in the graduation issue because of this incident. In short, Wang Jie went from Bingcheng Industry to Beijing Airlines. For these students from outside schools, especially master''s students, in the first semester, in addition to intensive classes, they also need to be familiar with their own topics and laboratory conditions. In fact, it is difficult to spare time for actual scientific research. So although there were five graduate students at once, only Li Yabo and Wang Jie were the only ones who could really start working right away. ?Originally, according to Chang Haonan''s intention, the nine of us, as the starting members of Torch Lab, should find a time when everyone is free to go out for a meal or something. But the plan cannot keep up with the changes. On August 21, the day after the new students were reported, new work came to Liu Fangping and Lei Zhixing. China Shipbuilding Industry Group has approved the feasibility study submitted by Hudong Shipyard. The LNG ship using Gas-Transport cargo tank and boil-off gas complete reliquefaction system has officially entered the project research and development process. Among them, the calculation of the overall structure of the ship, as well as the coordination relationship between the reliquefaction system and other subsystems, will be completed by the Torch Group and the Torch Laboratory. ?So, the two of them, who had just returned to Beijing Airlines for a few days, had no choice but to head to Shanghai again. Considering that this time it is a formal cooperation between the two parties. So Chang Haonan, who is also the head of the group and the laboratory, naturally had to show up and sign. The dinner party had to be put on hold for now. From the moment the plane was about to land, Lei Zhixing began to introduce the general situation of the Hudong Shipyard to Chang Haonan. After all, he and Liu Fangping have been there on and off for almost seven or eight months. According to their understanding, Chang Haonans only previous visit to Shanghai was at the beginning of the year to participate in the successful certification ceremony of the C808 passenger aircraft. Have not been to other places. Even except for Cai Honggui, I probably have not had direct contact with any comrades there. As a result, after the plane landed, Chang Haonan started to communicate enthusiastically with the comrades who came to receive him. Lei Zhixing and Liu Fangping were dumbfounded. ?The two of them stayed at the door of the cabin and even forgot to go down the gangway for a while. Before we returned to Beijing Airlines last month, didnt the people in Hudong still say that they were not familiar with Professor Chang? ?Lei Zhixing came slightly closer to Liu Fangping and asked in a low voice. Thats exactly what he said. The latters answer highlights a concise and clear answer. ?However, Lei Zhixing had long been accustomed to the old man''s way of speaking, so he didn''t care. Instead, he sighed and then shook his head. Our bosss connections are simply unfathomable Actually, Chang Haonan really didnt know the people at Hudong Shipyard very well. Even Cai Honggui has only met twice. But during the National Day last year, he made an appointment with Lin Qing from the 701 Institute to take time to observe the new domestic frigates that were under construction. ?However, he has been busy since then, and it is not worth a special trip to Hudong just for this matter. So it has been postponed until now. ? And it was Lin Qing who was chatting and laughing with Chang Haonan on the tarmac of Dachang Airport. And a deputy general manager of China Shipbuilding Industry Group, Wu Wentao. The latter and Chang Haonan met once at the Millennium Gala at the end of last year. In fact, after the split of the Shipbuilding Corporation, 701 Institute and Hudong Shipyard have been affiliated to two groups, Shipbuilding Industry and Shipbuilding Industry respectively. However, within the ship system, it is very common for you to be in the same situation. In addition, the two main shipyards in China that produce frigates, namely Hudong and Huangpu, are both under the shipbuilding industry, so there is almost no problem in the separation. affect the cooperation between the two parties. Including Lin Qing and Wu Wentao, they can be regarded as old acquaintances. ?After some pleasantries, Chang Haonan and his group got into several minibuses. "Mr. Chang, our contract signing ceremony for the LNG ship is scheduled for tomorrow afternoon. So today, according to Comrade Lin Qing''s arrangement, I will take you to the frigate first?" After the car started moving, Wu Wentao, who was sitting on the other side of the aisle, turned sideways and asked Chang Haonan for his opinion on the itinerary. Wewe are welcome to do as we please. Chang Haonan has never seen what it''s like inside a shipyard in his entire life. He will have no objection to it no matter how it is arranged. "Well." ?Wu Wentao nodded, and then instructed a staff member sitting in front: Go to the 2nd dock. (End of this chapter) Chapter 853 Domestic new frigate Chapter 853 New domestic frigates What surprised Chang Haonan was that the 2# shipyard was indeed quite different from the shipyard in his previous concept. Not only is it hidden under the top cover, it is even completely on the ground some distance from the seaside. ?It is not difficult to see from the surrounding structures that after the boat is built, it must pass through a specific slide rail before it can be launched into the water. ?This design determines that this 2# shipyard cannot build ships that are too large. Of course, the advantage is that not only can you be wary of satellite reconnaissance from overhead, but even ships passing by the channel cannot see what is going on inside the dock. Perhaps noticing the strange look in Chang Haonans eyes, Lin Qing explained: "Originally, if the traditional tower shipbuilding method was used, the dock would have to be placed on the shore. However, the nearby Jiangnan Factory began to introduce segmented shipbuilding when building 052. Hudong hopes to build it on top of 054. I also wanted to practice in this area, so I specially built this 2nd dock on the ground. "At that time, the Hudong Factory was producing an improved 053H2G frigate for the Pakistan Navy. The original plan was to start with the No. 4 ship and replace it with a new technology. However, in 1998, you know that the international situation changed greatly, so the initial Three ships were transferred to our navy, and the No. 4 ship was not built..." ? Lin Qing said that the 053H2G modification is actually 053H3. In 1998, India and Pakistan conducted multiple rounds of intensive nuclear tests, resulting in both sides being subjected to severe embargo sanctions ?Whether sanctions are effective depends on the reasons for the sanctions and the targets. ?Planes like the J-7F or some small ground equipment can be transported secretly. ??But honorably delivering a frigate against a sanctions resolution that you voted for... This matter is entirely done in the face of the Security Council. Even Americans cant do it. At that time, the Chinese Navy was in urgent need of combat power, so it directly exported to domestic sales. ?However, the situation on this timeline is still a little different from the previous life. Because the design of the 054 was frozen in 1999, and the cost is much lower than the 054 of the previous generation, which required a lot of imported parts from Europe. So the originally planned second batch of 053H3 was directly cut off, and the current full-combustion-powered version of the new frigate was produced. Chang Haonan listened to Lin Qing''s introduction and walked into the slightly mysterious No. 2 dock. As soon as you enter the door, you can see a warship that has begun to take shape parked on the slipway in the center of the dock. Although the former does not know the detailed design plan of 054, the renderings have always been seen. No matter how bad it is, a ship with a conventional layout cannot do any tricks. The reason why it is said to be "initially taking shape" is that only about two-thirds of the front of the ship is complete at this time, while the rear third is divided into two segments and has not yet been docked with the main hull. This is exactly the characteristic of the segmented shipbuilding method. Install most of the equipment into the ship structure first, and then assemble it. The advantage of this is that multiple sections can be started simultaneously and finally assembled together. The shipbuilding efficiency is much faster than the tower shipbuilding method. The first ship of 054 started cutting steel plates in October last year. It only took about 10 months for the hull to be basically completed. ??As long as some further outfitting of ship surface equipment is carried out, the sea trial process can begin in about half a year. Even for a small ship with a volume of less than 4,000 tons, it is quite efficient. ?Of course the price is that there is almost no fault tolerance. ??If the error of a certain segment is slightly larger, making it impossible to align with other hulls, then the only way is to rework it. Exactly, the section that will be closed soon is near the power cabin. ??Everyone came to a relatively high operating platform. Lin Qing pointed to a location at the bottom of the cabin and said to Chang Haonan: There are two QC130 gas turbines and the entire power system including the reduction gearbox. ?While saying this, a staff member from behind handed over a telescope at the right time. Although Chang Haonan was deeply involved in the research and development of the turbojet 14 itself, because when the QC/QD130 was developed, the turbofan 10 project was already in progress, so he did not actually know much about the situation after the combustion change. Fortunately, Lin Qing and another engineer named Liu who was responsible for shipbuilding were always there to cooperate with the introduction. Where is the flue, where is the air inlet, and where is the fuel pipe... ?As well as shock-absorbing rafts deployed to further enhance anti-submarine capabilities, and exhaust ejector devices specially designed to suppress the infrared signature of the ship... It can be said that although it is only a type of frigate with strict cost restrictions, the shipbuilding industry system still cooperates with the aviation industry system to use some cost-effective technologies that can improve combat effectiveness as much as possible. In addition to improving the combat effectiveness of this class of ships as much as possible, it is more important to pave the way for new domestic destroyers that have also entered the planning stage. ?The only problem is that the gas turbine itself will be more expensive to use than a diesel engine. ?However, since the 054 directly chooses full-combustion power in one step, and it is not even a combination of combustion and combustion, then Yan Zhongcheng must have made some tilt towards fuel consumption in terms of performance trade-offs. What was the result of the previous test of QC130 on the dynamic test platform? When Lin Qing finished speaking, Chang Haonan suddenly asked. Last year when the Aerospace Power Group was established, he once drew three pieces of pie. ?One of them is to develop a 30MW marine gas turbine based on the turbofan 10 core engine, which will be used in future domestic destroyers. ? Two gas turbines of this level can drive an 8,000-ton destroyer, and if four are used, it can power a 12,000-ton or higher destroyer. ??And if you want to do a good job in aviation modification and combustion, you must refer to the feedback given by some users. There is nothing wrong with the gas turbine itself. ?Lin Qing replied: "The volume, weight, output power, mean time between failures and fuel consumption are all within the initial design specifications. Only the noise and vibration levels are slightly larger in order to compromise with fuel consumption. However, no matter how large it is, compared with diesel engines It''s still a lot better than before..." "The current main problem is actually the same as that of the two 052s. Our navy has almost never equipped fully-combustion-powered warships in the past, so neither the crew nor the shipyard are very accustomed to the maintenance, overhaul and maintenance of gas engines. " Especially after each voyage, or when a malfunction occurs, because gas turbines are more complex than diesel engines, inspection and maintenance take about two to three times longer, but these can be gradually overcome through training... In fact, to sum up, although I dont like bad things, it will be troublesome if they are broken. Hearing this, Chang Haonan suddenly had an idea and looked at Lei Zhixing and Liu Fangping who had been following him: Should the Equipment Condition Monitoring and Automatic Fault Diagnosis (ECM&FD) system we previously developed for LNG ships be transplanted to this frigate? After Chang Haonan developed a usable manifold learning algorithm, the first application scenario that came to mind was risk and fault diagnosis. ? Its just that this requires a large number of sensors to provide data. According to the technical level in 2000, it is difficult for aircraft, at least small and medium-sized aircraft, to meet this requirement. So this system was first used on LNG ships The complete reliquefaction system of boil-off gas will affect the structural design of the entire ship. Even for Gas-Transport cargo tanks with safety redundancy, they still face certain risks. ??And if the core data of the entire ship, including cargo tanks, power systems and hull structures, are integrated into the new system, this risk can be estimated in advance. ?For example, if a valve on the ship is at risk of failure due to disrepair or improper installation, it will have a certain impact on the pipeline pressure data of the upstream and downstream, and even the entire ship. In the past, it was difficult to find this effect from the large amount of data noise using manual verification alone. Often you have to wait until the valve really fails before you can make up for it. But with the ability to extract data, targeted early prevention becomes possible. It seems that similar systems can be installed on warships after simple debugging. ?The cost of applying it to the entire ship like LNG ships may be too high, but it is not a big problem to only use it in the power system. In this way, the man-hours consumed in the maintenance process will be greatly reduced, and the risk of failure will also be reduced accordingly. From the perspective of the cost of the whole life cycle, it is definitely profitable. (End of this chapter) Chapter 854 normal hanging hair Chapter 854 Normal hanging hair For the purpose of keeping secrets and preventing destruction by enemy agents, the military and civilian operations of the Hudong Plant are physically separated. In addition, Lin Qing is from the 701 Institute after all, so he has always been concerned about the LNG ship project. The degree of hearing. As for the specific technical solution details such as the Gas-Transport cargo tank and the boil-off gas reliquefaction system, we have no idea at all. Therefore, when he first heard the straightforward name "Condition Monitoring and Automatic Fault Diagnosis System", he immediately became energetic: In order to meet the maintenance needs, we specially left some space margin for the power cabin during the design, if sensors are needed... Obviously, this feature is very useful for the current new frigates. ?However, Chang Haonan waved his hand: The sensor is definitely not installed in the power cabin, so it cannot detect anything. It must directly cooperate with the power system itself. With the power system itself Lin Qings expression froze after hearing this: Does this mean that these two gas turbines must be dismantled and rebuilt? ??Now that the ship segments are nearly fully assembled, if any further modifications are made to the equipment in the segments, it will inevitably affect the launch schedule. This is a considerable loss for the first ship of a model that undertakes considerable testing tasks. Uhthats not necessary. Chang Haonan quickly explained: "After all, the QC130 is the basis of the turbojet 14. The electronic control issue was taken into consideration when designing it, so it can be modified in situ. However, because you do not have a unified power control system for the entire ship, this function cannot be integrated into the bridge or Its inside the CIC and can only be viewed in the engine room. ifier ?This reply made Lin Qing relieved: It doesnt matter, anyway, the engine room of a warship must be manned, and we only use this function mainly during maintenance. ?Theoretically, the power system of modern ships is directly controlled by the bridge part, so it can work unattended. ?However, warships must consider special circumstances and set up special engine duty posts. ??Its just that there is no need to operate the engine or even fill the boiler with coal according to the commands from the bridge as before. ?This is why a warship of several thousand tons usually has dozens or even hundreds of crew members, while a cargo ship of 100,000 tons or even hundreds of thousands of tons may only have 20 or 30 crew members. It was only then that Lei Zhixing, who was first asked by Chang Haonan, intervened: "Mr. Chang, from the perspective of system hardware, there is no problem. However, we have never done gas turbine parameter calibration before, so if we want to achieve complete functions, I am afraid we have to cooperate with the turbine design unit and the shipyard. " Before the words could even be finished, Lin Qing and the engineer named Liu next to him expressed their opinions almost in unison: No problem, we will definitely cooperate with you on the business side! ?Wu Wentao next to him also agreed. ??Anyway, at the group level, the shipbuilding industry and aviation power have already begun cooperation on the LNG ship project, so there is no need to have another one. Wu Wentao concluded. Nomy main concern is efficiency Chang Haonan sighed: This system is still in the development stage. Ordinary employees of Torch Group are not very familiar with it. If we only rely on the two of them, it will be a bit troublesome to run both ends. "Um" ?Lei Zhixing and Liu Fangping also nodded slightly. ?Physically, its okay to run from both ends. After all, they are both at the Hudong Shipyard, not far away. But not everyone can handle work with multiple threads like Chang Haonan, so working on two similar but different projects at the same time is likely to lead to confusing both sides and causing chaos together. How about...Professor Chang lends us the new doctoral student in our group for two days? Liu Fangping, who usually rarely talks, suddenly suggested: "I''ve talked to Wang Jie before. Like Lei Zhixing, he also has a mechanical background, and he has studied the fault characteristics of rotary mechanical equipment during his master''s degree. However, he has never been exposed to the theoretical concept of high-dimensional data dimensionality reduction before, so he should get started. Its pretty fast. ? ? "This..." ? ? Chang Haonan hesitated for a moment: Ill ask for his opinion when I get back. We still have to refer to the students own opinions in the field of research. If it doesnt work out, I plan to recruit a group of postdocs and researchers in a few months. Anyway, the technology is in our hands, and there is always a solution to the manpower problem. Alright ?Lei Zhixing nodded: Anyway, the progress of shipbuilding cannot be seen in three days or two. "Mr. Lin, will you continue to advance the project according to the original schedule, and when the warship is outfitted, we will solve the power system problem simultaneously with the ship''s surface operations?" ?Chang Haonan looked at Lin Qing next to him. "Can." Since it will not affect the progress of the project itself, the latter naturally has no objection. ?After visiting the construction of the entire ship, considering that it was still early, Wu Wentao and Lin Qing took Chang Haonan to the equipment warehouse and took a look at the 3K95 ship-to-air missile system that had been delivered. That is Doyle of Haiji. It''s just that the appearance of this set of things is a little different from what Chang Haonan remembered... I remember Chang Haonan looked up at the four sets of launch boxes in front of him and asked in surprise: This 3K95 launcher should have 8 rounds arranged in a cylindrical shape? Yes, thats the original version. ?Lin Qing nodded: Eight bullets, similar to the cylinder of a revolver, but there is only one firing port and a rotating mechanism below. But we dont understand why we need to use this strange launch method, which neither saves space nor cost, and also increases the complexity of the system out of thin air. ?Just after he finished complaining, Engineer Liu next to him added another sentence: Furthermore, the land-based 9K330 actually already has a set of 8-link launch boxes with mature technology, but even so, the Soviets still designed... such a thing for their navy." In fact, Chang Haonan heard relevant analysis a long time ago and believed that the reason for this peculiar design idea is because the Soviet-style sea-based vertical hair, whether 3K95 or long-range S300F, is a direct replacement of the single/double arms of earlier years. The product of the launcher. It is equivalent to hiding the launcher directly under the deck to prevent high sea conditions from adversely affecting the missile and launch system. ?Under this idea, it is almost a logical idea to share one launch port for 8 rounds The 9K90 single-arm launcher on the modern level has only one firing position for 24 rounds of ammunition. ?Its just that later people have seen Aegiss kind of hanging hair, and looking back, of course they find everything strange. So you just got four sets of Luji Doyles hair hanging devices? Chang Haonan looked at the four rectangular metal boxes and found that they did look a bit like the ones from 9K330. Its not directly from the Army. ?Lin Qing explained: Actually, the Russians themselves thought that the rotating launch mechanism was very strange, so they had already designed this kind of 8-unit vertical launcher. However, they never launched new ships, so they had no place to install them. After we learned about this situation, we packed this set of equipment back together with several battalions of 9K330s and some related technical information... Even if the 054 is replaced with a domestic vertical launcher that is larger in size and can launch medium-range or even long-range missiles in the future, this relatively small close-in defense system will definitely have its place. (End of this chapter) Chapter 855 Patent technology cooperation Chapter 855 Patent Technology Cooperation New medium-range missile ?Chang Haonan naturally knew that Lin Qing was referring to Hai Hongqi16. That is, the model after the technological introduction and upgrade of the modern-level 9M38 anti-aircraft missile It is different from the expectations of many melon-eating people at this time. ? ? Chinas introduction of the 956 destroyer is not, or at least not primarily, for anti-ship capabilities. 8 anti-ship missiles with a range of less than 150 kilometers cannot pose any threat to the enemy fleet unless they are in special terrain. Instead, they are interested in the air defense system it carries. Although the 9K37 air defense system is a mid-to-low-end model in the Red Navy series, for the Chinese Navy from the late 1990s to the early 21st century, an air defense system with sufficient ammunition, a range beyond visual range, and the ability to deal with multiple targets at a time Missiles are already the "mainstay of fleet air defense". ?However, if you count the time. In February this year, the first modern-class ship introduced by China officially returned to China and entered the fleet. The design plan of 054 had been frozen half a year before that. But from what the other party said just now, it seems that the replacement of new missiles has already been considered? Of course, Lin Qing next to him didn''t know what Chang Haonan was thinking about. He just saw the latter lowering his head and looking confused. Naturally, he thought that as an aviation technology expert, he had never heard of medium-range anti-aircraft missiles, so he took a step forward. explained: "A few years ago, when we went to negotiate with Russia about the introduction of Type 956 destroyers, the Northern Design Bureau probably also wanted to refer to the cooperation between your... um... their aviation industry and the Sukhoi Group, and came up with an upgraded version of the 956U The plan is to replace the AK130 naval gun at the back with three groups of 3S14 vertical launchers. The delegations judgment at that time was that the new Russian-made ships might not be reliable, and the plan had to be changed a lot, and it would take extra time to perfect. We couldnt afford to wait, so we didnt agree in the end and just bought two ships. The 956 is a semi-finished product, and the purchase rights for the other two are reserved. "But later we felt that although the warship itself was not very good, the vertically launched 9M38 anti-aircraft missile solution was quite good, so after returning to China, on the one hand, we advanced the timetable for the introduction of the 9M38 missile, and on the other hand, we also began to plan new types of hot and cold missiles. The total depth of the vertical launch system is about 6 meters. For this purpose, the 054 has also made a modification to the deck structure of the bow, leaving a total of about 6.5 meters of space on the three decks. " Speaking of this, Lin Qing raised his finger and pointed at the launch boxes of the 3K95s: Otherwise, just to install such a small thing, there is no need to open up the second deck, or even move the entire hanging hair to the deck... ?Chang Haonan probably compared the hanging hair in front of him with the frigate he just saw. ??It was found that the size of 3K95 can indeed penetrate only the first deck without affecting the inner space of the ship below. ??It is quite suitable to be installed in the corners of some large ships wherever possible, serving as an ecological niche similar to the future sea sparrow. That is, it is between a serious medium-range air defense missile and a single-channel lightweight air defense missile that can only be used for terminal close defense and is essentially equivalent to a close-range anti-aircraft gun upgrade. So... after the new air defense system is finalized, the 054 can replace the 3K95 with a new vertical hair without moving the hull at all? Chang Haonanxin said: Doesnt this realize the modular function of warships that Americans still draw on PPT ahead of schedule? ?But Lin Qing still shook his head: If you want to replace the 054 that has already been built, you still have to move it, at least remove the counterweight left underneath. But if a new ship is upgraded, there is basically no need to go through the design process again. Its just that we havent thought about it yet. We will dismantle all six groups of 3K95 and keep two groups for short-range point air defense..." Chang Haonan didnt ask any more about the hair loss issue. On the one hand, vertical development is more important than specific technical research, but the route selection is more important. ? ?Hairlocks of different types and sizes are not superior or inferior in principle, as long as they can adapt to the development route of the country''s navy''s shipborne weapons, it is good. On the other hand, China''s vertical launch system developed relatively smoothly in the last generation, and now that the Russian-made revolver launch system has been replaced by a launch box, the one on the 052C that was greatly affected by the S300F is obviously not The H/AJK03 vertical hair, which has a revolver structure but is still designed with a circular platoon, should also go in a relatively "normal" direction. In this case, there is no need for him to allocate his already scarce time and energy to this. ?After visiting the frigate, Wu Wentao took Chang Haonan and his party to visit other areas of the Hudong Shipyard and the factory history museum. ?But these parts are purely routine for welcoming guests. Its really not very attractive. ?Of course Wu Wentao also knows this. So after going through the motions, Chang Haonan and the others were sent back to their residence in the name of "arranging a rest." The signing ceremony was arranged together with the dinner the next day. In the auditorium of Hudong Shipyard. ?In addition to representatives of the aerospace power group and the shipbuilding industry, also attending the ceremony was Karim Chapo, a technical representative sent by the French GTT Group. At the very beginning, Hudong Shipyard actually had the idea of ??loading the Gas-Transport cargo tank separately. ?However, if it really comes to this point, it will basically be a lose-lose situation for both Hudong and GTT. So when it was time to get started, GTT chose to join the project and provide relevant technologies in cargo tank design for the first LNG ship produced by Huaxia. After all, for GTT, which holds more than 90% of the patents related to membrane cargo tanks, this can be regarded as a supplement and cover for the more radical Technigaz technology. ??Anyway, everyone knows that as long as this ship can be built, even if it is less economical, China''s own oil and gas company will take over. Even if you dont make a profit, you are unlikely to lose money. The ceremony itself is quite brief. First, the three companies sent people to give speeches respectively. Among them, only Karim Shapo took a little longer because he reviewed the development history of GTT Group and promoted the huge advantages of membrane cargo tanks compared with other technical routes. , the remaining two sides were completed within five minutes. Immediately afterwards, amid ribbons and cheers, representatives of the three parties signed a cooperation agreement in triplicate. Then, the three shook hands with each other and drank champagne together. Although from a commercial perspective, we at GTT Group are not very optimistic about the prospects of Gas-Transport cargo tanks, we still wish our project all the best. ?Karim Shapo held the wine glass and clinked it with Wu Wenhao and Chang Haonan respectively: Furthermore, from my standpoint as an engineer, it is your first time to come into contact with the complete construction process of an LNG ship, so it is indeed more appropriate to choose a relatively conservative technical route. Believe me, Mr. Chapeau. Chang Haonan replied: Technological conservatism does not necessarily mean backwardness. My colleagues have calculated that as long as the efficiency of the boil-off gas reliquefaction system is high enough, the cost of the Gas-Transport cargo tank in terms of size and weight can be compensated, and it will have additional advantages in terms of safety "Um" Karim Shapo pondered for a moment, obviously having reservations about Chang Haonans opinion. ?But it was a celebration after all, so he didnt say it very directly. He just answered from a technical point of view: But I have seen the boil-off gas reliquefaction scheme you proposed. It will have an impact on the hull structure. In order to truly offset the economic disadvantages of Gas-Transport cargo tanks, at least a system with a reliquefaction level of 85% is needed. ? Boil-off gas is the main loss of LNG during transportation, so GTT has been conducting research in this area for a long time. As a core technical staff member, Karim is naturally familiar with these data. But so far, the main idea of ????GTT is still to give full play to its own strengths, start from the source, and reduce the amount of leakage as much as possible. But this kind of thinking has its limits after all. At the level of Gas-Transport and Technigaz technology, it is already difficult to continue to advance. Hence, the reliquefaction system will definitely be the focus of the next step of research and development. ?This is another reason why GTT chose to join this project in the end - whether the Hudong factory can succeed or not, it can be regarded as a useful attempt. Anyway, at least there is a way forward, isnt it? ?Chang Haonan just smiled and did not explain more. Karim currently only knows that China plans to apply a reliquefaction system on this LNG ship, but he still knows nothing about the equipment status monitoring and automatic fault diagnosis technology provided by Torch Group. ?So...Chang Haonan thought it would be better to let the other party know later. First of all, you can give the other party a huge surprise (scare) when the time comes. Secondly, the relationship between GTT and Japanese and Korean companies such as Samsung Offshore and Oshima Shipbuilding is quite close. Even if Karim had no subjective intention, it would be difficult to keep it completely confidential from his colleagues. Thats why its essential to be on guard against others. especially. ?According to his experience before his rebirth, Koreans have a bad record in this regard. Thats true Of course, Karim didnt know that he was still in the dark, so he just clinked glasses with Chang Haonan again. Then drink the champagne inside. (End of this chapter) Chapter 856 The Varyag returns home Chapter 856 The Varyag returns home At almost the same time, Chang Haonan attended the signing ceremony of the cooperation project. Liao Province, Dalian (bushi) Ahem Lianhai Shipyard. ?Under the setting sun, a pilot boat leading two tugboats gradually appeared in the sight of everyone on the shore. ?Following the entire fleet, a rusty behemoth gradually emerged from beyond the horizon. Since it was still prohibited from passing through the Suez Canal, after a long journey of more than nine months, the tugboat team headed by the Nikolay Chikel finally towed the Varyag to the end of its journey. destination. ?Even those who have not personally experienced the difficulties and obstacles along the way can tell from the logbook submitted by the mission leader Zhu Yuzhou. ?Especially when this behemoth, which has neither power nor rudder, is circling the African continent. Since the Cape of Good Hope happens to be located at the confluence of the warm Agulhas Current and the cold Benguela Current in Mozambique, rough waves are constant all year round. When the tug fleet passed by, the huge waves almost knocked off the tow rope behind the Nikola Chikel At this time, the fleet had no choice but to hire a second tugboat, which managed to control the course of the Varyag despite the harsh sea conditions and prevent the giant ship from drifting away with the current. Later, when passing through the Horn of Africa, what everyone was most worried about before the trip happened happened again. The entire tug fleet is being targeted by pirates, or at least suspicious vessels that appear to be pirates. Finally, it was rescued by a patrol ship from the Saudi Navy... Later, he experienced a series of obstacles such as being maliciously blocked in shipping routes and getting permission to pass through the Strait of Malacca before finally returning to the embrace of his motherland. ?Just before entering the port, the pilot ship and the tugboat Nikolai Chikel sounded a long whistle at the same time, paying tribute to the nearly 100 navy and comrades in the shipbuilding industry system who were waiting eagerly on the shore. The crowd on the shore also responded with enthusiastic cheers. In order to reduce the international impact as much as possible, China did not invite any media to report on this matter. ??Only a few comrades from the military newspaper and the shipbuilding heavy industry propaganda department took a few photos from different angles for documentation. ??On Pier 1 of Lianhai Shipyard. Sun Suguang, together with several other colleagues and technical consultants from the Black Sea Shipyard, stood on a high platform and looked at the Varyag, which was slowly approaching the outfitting dock next door. Among them, of course, is Valery Babbage. ? As early as the beginning of the year, he had already arrived in Lianhai under the arrangement of Wu Yifan, and later participated in the technical research of several large-scale shipbuilding projects with other engineers also from the Black Sea Shipyard. In a consultant capacity, of course. Until about a week ago, five people, including him, were suddenly notified. Hand over the project at hand immediately. Then, just two days later, they were arranged to live in a villa area in the outer suburbs. Then again, its today. You...should be really planning to continue building this ship, right? ??Babic asked Sun Suguang, who was standing not far away. Actually, of course he knows the answer ??Although Huaxia has purchased several decommissioned aircraft carriers through different channels before, as an insider who participated in the whole process, he can clearly feel that the situation this time is different. ??Technical data on the aircraft carrier itself, relevant personnel from the Black Sea Shipyard and Azov Steel Plant, and the "Nitka" aircraft carrier training facility... ??If you dont make up your mind to continue the construction based on the Varyag, then there is no need to spend a lot of money and energy to introduce these supporting things. There is no need to hurriedly pull over several of their senior technical staff who have participated in the 1143 project. However, when Babbage really saw this old friend reunited after a long absence after more than half a year, he still couldn''t help but ask this question.????He wanted to confirm again. "certainly." Sun Suguang turned around and looked at Babic, who was trembling slightly with excitement: At the beginning of this year, higher-level units and the navy have made this requirement clear. We in China already have the technology and experience to build a large 60,000-ton ship based solely on military specifications, but aircraft carriers are, after all, a complex and brand-new subject. So compared to starting from scratch, continuing to develop on the existing basis will be more efficient and reduce a lot of trial and error costs. This is exactly why we invited you here. When hearing this answer from the interpreter, Babbage couldn''t help but breathe harder. After a while, he looked back at the Varyag that had docked on the shore: If possible, I hope we can organize manpower as soon as possible to start surveying the entire ship. At this time, another person next to him interrupted: The technical information we got before should contain the design drawings of this ship, right? There should be drawings. ??Babic nodded: However, this ship has been idle for nearly ten years, and some equipment has been dismantled several times during this period. "In addition, for about five or six years in the middle, the docks of the Black Sea Shipyard were unattended, so there must be some things stolen by people who boarded the ship privately. In these cases, whether it was me or anyone else, , it is impossible to fully grasp it. "When you proposed buying this ship two years ago, I also considered conducting an inspection of the entire ship, but I simply couldn''t organize enough manpower. This ship has 20 floors and more than 3,000 cabins. It''s impossible to rely on just one or two people. Finish" After hearing his explanation, Sun Suguang immediately replied: Our project team needs to mobilize technical personnel from the shipbuilding industry system across the country, so it is still being formed. The manpower... may not be sufficient at the moment. But the most important ones on the ship should be the cabins related to power, aviation, and weapon systems. I can send about fifty people first, starting from these key positions. After the project team is formally established, I will send some more people. ??Babic suddenly felt a sense of happiness welling up in his heart. ??He has not experienced this feeling of organizational support for his work for many years: "Actually, fifty people are enough... I originally wanted to ask you for twenty or thirty people at first..." ?Sun Suguang and several other colleagues looked at each other, and they all saw a little shock in each other''s eyes. Just now, Babic said that he did not have enough manpower in the past few years. They all thought that the other party might need a team of several hundred people. ??After all, there are hundreds of people in such a large Black Sea shipyard who were hired by Wu Yifan to earn money from China and who finally passed the review and stayed. As a result...we couldn''t even organize twenty or thirty people? Obviously, the consequences of a complete collapse of the grassroots organizational structure are beyond the imagination of those who have not experienced it. Previously, everyone was basically using the massive layoffs in the country in the past two years as an analogy. But looking at it this way, it seems to be completely different... ??Babic looked at the people around him who suddenly fell silent, a little confused. ?However, after a slight pause, he continued: "The other thing is, if you really plan to use an aircraft carrier, then the research and development of carrier-based aircraft...or procurement should start almost at the same time. Otherwise, if there is only one ship, it will not be able to play its role." Carrier-based aircraft Hearing this, several people around him smiled: Based on my experience over the years, I think what we should be worried about is whether our progress here will be too slow..." (End of this chapter) Chapter 857 eye of the earth Chapter 857 Eye of the Earth After the signing ceremony of the tripartite cooperation, the Hudong Factory arranged a series of project seminars in the following days. That is to say, the personnel responsible for technical issues from the three companies are brought together to explain in detail the current pre-research status, design goals and subsequent work task allocation of the LNG ship project. ?According to the original plan, although Chang Haonan did not personally participate in the project, he still planned to attend the seminar and return to the capital in a few days First of all, this is the first time that Lei Zhixing and Liu Fangping have taken on such a big job alone without anyone to take care of them. Secondly, this is also the first time that the condition monitoring and automatic fault diagnosis system he developed has been put into specific application scenarios. ?However, plans cannot keep up with changes. Just after the first seminar, he received a call from Professor Meng Zhenyuan in the afternoon of the next day. Comrades from the Huaxia Geological Survey have completed the first three sets of geological survey and brought the obtained samples back to the capital. At present, analysis and testing of basic projects are underway. So, after much thought, Chang Haonan decided to terminate his trip to Shanghai in advance. Two days later. Institute of Geology and Geophysics, Chinese Academy of Sciences. ??When Chang Haonan returned to the capital for a short rest and then rushed here, Meng Zhenyuan and Li Nianheng had been waiting in a conference room for some time. In addition to them, there are also more than a dozen technical staff from the Geological Survey and the institute. Hello, Professor Chang. ?Seeing Chang Haonan walk in, a middle-aged man sitting at the head of the left side of the conference table immediately stood up, shook hands with the former, and then introduced himself: I am Zhai Mingguo, a researcher at the Institute of Geology and Geophysics. I mainly study metamorphic geology, tectonic evolution and igneous petrology. I am responsible for presiding over the analysis of the results of this exploration. Of course, I will also cooperate with your work in an all-round way. While speaking, he had already led Chang Haonan to the main seat at the conference table. Chang Haonan was slightly surprised by Zhai Mingguo''s statement. After all, generally speaking, for this level of cooperation, an academician will usually be assigned to the other side. Even if you are not responsible for specific work, you can still play some role in securing resources. At the same time, it can also prevent the unit from being squeezed out or marginalized. But looking at the posture in front of me, it seems that there is no such person. Otherwise, a researcher would not be allowed to take the lead. But this is not a bad thing for Chang Haonan. After all, although he is not yet an academician, he no longer needs to rely on other peoples names to secure resources... Since it is a collaborative research, it is natural to cooperate with each other. ?After Chang Haonan sat down, he said a few more polite words to the other party. Then we got to the point. ??A representative from the Geological Survey first walked to the small podium at the other end of the conference room. A PPT was quickly projected on the screen. Comrades, I am the deputy leader of this round of geological exploration team, and also the leader and person in charge of the exploration mission in Alxa area in western Mongolia Province, Xiao Wenchang. Let me briefly introduce our exploration mission... "Due to problems with manpower, equipment and funds, according to the requirements of Professor Chang and Engineer Li, we first conducted research on the Loess Plateau area in eastern Longyuan, the desert area in Alxa in western Mongolia, and the perennial snow and ice at the northern foot of the Tianshan Mountains. The modern glaciation zone has been explored in 3 groups, 9 target areas, and a total of 413 detailed points..." On the remote sensing satellite image that underwent data dimensionality reduction, a total of nearly 80 abnormal points were counted. But that is a very small-scale image after all, so each "point" reflected on the map is actually a task area for the exploration task. In each area, dozens or hundreds of exploration points must be determined, and hundreds or even thousands of exploration operations must be carried out. Therefore, it is indeed quite difficult to take care of 9 areas with 3 types of terrain features at one time. From February of the beginning of the year until now for half a year, the entire exploration team has been exposed to wind and sun in the wild almost all the time. This can be seen from Xiao Wenchang''s skin color - the exposed parts of his face, hands and neck are completely different colors from his arms. The situation of the other two team leaders in the conference room was basically the same. Therefore, after his explanation of the exploration mission came to an end, the audience almost immediately burst into warm applause. The following part is the result of our on-site analysis of the samples from the exploration site. When the applause gradually faded, Xiao Wenchang calmed down a little and then continued: The first is the Alxa area that I am responsible for, with a total of two areas and 80 exploration sites. At the same time, the screen switched to the map that Chang Haonan was so familiar with, and then zoomed in to the westernmost location of Mongolia Province. ?There are two markers not far apart. Based on the results provided by remote sensing satellites, we conducted multi-point surveys from the outside to the inside of the Badain Jaran and Tengger Deserts. The specific results are as follows "Due to the existence of weathering, there is no obvious difference in characteristics between the two deserts at the surface, that is, within the depth of 0.5-2 meters. However, at deeper locations, especially above 3 meters, we observed that the two deserts have different characteristics. There are obvious differences in the moisture stratification of each area. In addition, thanks to the guidance of remote sensing satellite images, we were fortunate enough to discover an ancient river system in the southeastern part of the Tengger Desert that we have never paid attention to before, which is also an unexpected gain..." ?Xiao Wenchangs tone on the stage gradually became excited. For an old guy like him who has been in the industry for more than 20 years, this mission definitely brought a new work experience. In the past, geological exploration was largely a matter of luck. Because this kind of work is a three-dimensional work. ?It may not look like a big place on the map, but if you really want to send people in, then with different locations, different depths and different sampling methods, a complete set can be considered extremely efficient in half a year. ??If you encounter some difficult bones to crack, it is common for you to work on it for two to three years or even longer. This does not include the risks involved in the process. And after a quick operation, there is a high probability that nothing will be discovered, and it will be in vain. Send at most a few papers for submission. To obtain some truly meaningful results, it often takes several or even dozens of rounds of exploration. Basically runs through a person''s career. But this time, he experienced what it means to be targeted. ?While the exploration process itself remains arduous, it does pay off. ??He was given several target areas above, and after a round of exploration, he discovered a lot of new things... ??If this efficiency can be maintained in the future, then Xiao Wenchang feels... Considering that I still have about ten years before I can no longer do anything and retreat to the second line, the academician seems to be waving to me... "In short, we preliminarily speculate that it may be due to differences in water content stratification that the polarimetric SAR signal undergoes different degrees of scattering and refraction during the process of penetrating the sand layer, so it appears differently on the satellite image. Signal response At this point, Xiao Wenchang paused for a moment, picked up the cup on the podium and prepared to take a sip of water. Li Nianheng, who had been silent just now, suddenly intervened: Leader Xiao, please wait a moment, I have a question. Because this is a normal academic exchange meeting, not a project defense, there is no need to wait for everyone on the stage to finish speaking before focusing on asking questions. Although different moisture stratification conditions will indeed affect the results of SAR detection, if this is the only reason, then we should be able to analyze it directly even using conventional methods. The actual situation is that the first round of analysis we conducted did not show any difference between the two areas. It was not until Professor Chang processed it with a new calculation method that we discovered that there was a significant difference in the feedback signals from the two areas. " So, Im afraid there are deeper reasons (End of this chapter) Chapter 858 The value of space remote sensing Chapter 858 The value of space remote sensing Well...thats it. Xiao Wenchang put down his water glass and walked back to the curtain: Our exploration unit has to constantly change working locations, so we are unable to conduct particularly complex tests. Especially because the properties of geological samples related to desert conditions are relatively stable, we are more inclined to send more tests to the capital for testing. As he spoke, he turned another page of the PPT. The above are several other physical and chemical data of samples from two areas. ?Of course, as Xiao Wenchang said, they are all very basic or items that are not convenient for remote testing. Such as particle composition, hydraulic properties, conductivity, pH, etc. Either there is no change, or the change is irregular. In short, they do not show particularly obvious research value like the deep water content just now. At this time, Zhai Mingguo, who had just been sitting on Chang Haonan''s left hand side, then spoke: Originally, we planned to have all three comrades from the geological exploration team take the stage, and then it would be our turn. But I see that Mr. Li is so eager to hear it, why dont we just change the order? The slightly joking tone made the atmosphere in the conference room suddenly become more relaxed. ??Although Zhai Mingguo used an interrogative sentence and was speaking to Li Nianheng, he was obviously not consulting the latter''s opinion. Thats good, so that the conditions of each terrain can be explained together. Chang Haonan nodded: Otherwise, if we wait a little longer, by the time you tell us the detailed test results, you may have forgotten many of the things mentioned earlier. ?Seeing that his proposal was agreed, Zhai Mingguo immediately looked at another young man opposite who was still wearing laboratory clothes: Xiao Lu, go up and report what you have discovered during this period to your comrades! Sample testing is not started after the exploration team returns, but is collected and tested as needed. So even though the first round of exploration only ended three days ago, most of the test results have actually come out. ??The young man named Xiao Lu stood up immediately: "yes!" Then he strode towards the podium with rapid strides. ?Seeing this scene, Chang Haonan also sat up slightly - ??Although the content of the conversation between the other two seemed ordinary, considering the tone and demeanor of the words, it was obvious that they had a big bottle in their hands and were ready to take it out and shock their peers for a whole year. Dear comrades, my name is Lu Jinhui. I am responsible for analyzing all samples from two areas in the Alxa region. Specific projects include..." ?Lu Jinhuis voice was slightly trembling. He does not look much older than Chang Haonan. He must have just entered the institute and does not have much experience in dealing with big scenes. Now that I suddenly face so many colleagues and seniors, I am inevitably a little nervous. ?After a brief opening remarks, Lu Jinhui went directly to the topic. "After the sample is naturally air-dried, it is passed through a 2mm sieve to determine the composition of sand particles; it is passed through a 0.25mm sieve to determine the soil organic carbon content and total nitrogen content; a cylindrical shape with a diameter of 75cm, a height of 150cm, and a rubber film is used. Sand column, used to determine the effective stress of dry sand As the content deepened little by little, his speaking speed became much smoother than at the beginning. From the test results, we found that the Tengger Desert, especially the relatively concentrated 19 deep sampling samples on the southeast side of the Tengger Desert, which we call the Tengger Group A, has relatively special physical properties. "Of course, the two research objects this time, Badain Jaran and Tengger, actually have some characteristics that have not been noticed before, so the specialness I just mentioned is compared to the typical deserts that have been studied more in the past. In terms of shallow surface sand. Speaking of this, Lu Jinhui turned around and clicked the mouse. Two photos that were clearly magnified by a microscope were projected on the screen. They looked like they should be two grains of gravel, one large and one small. The larger one appears angular in shape, while the smaller one is relatively smooth, closer to a perfect sphere. There is a series of tables below each of the two pictures, with a series of physical and chemical property data on them. ?Lu Jinhui paused for a moment to allow everyone time to read the contents of the PPT clearly, and then continued: Generally speaking, because desert sand is subject to weathering all year round, the particles are finer, the outer contour is smoother, and it usually contains a higher proportion of harmful salt components, so it cannot completely replace river sand as a building material. "However, after analysis, it was found that the sand particle samples in Group A present a crystal structure of silica, which has potential volcanic ash activity, so it can be used as a substitute for cementitious materials to a certain extent, although its gradation is still relatively average. But the chemical composition and mineral composition are relatively close to river sand..." "In addition, we also conducted a sand foundation bearing capacity experiment and found that the shear stress of the sample in area A increased instantaneously after the loading strain rate was increased instantaneously, but it will gradually fall back to the original loading curve as the loading process..."?????Simply speaking Lu Jinhuis discovery is that the desert sand in this area has the potential to replace river sand as the fine sand and medium sand in concrete components, but further experiments on blending and modification are needed. ?From this point of view, the excitement shown by Zhai Mingguo just now is understandable. Although river sand is not a scarce resource at the moment, with the acceleration of urbanization across the country and the rapid rise of the real estate industry in recent years, pure natural building materials will one day be no longer available. Meet the huge demands of the construction industry. However, compared with river sand, desert sand is inexhaustible. Even if it is just an area in a desert, it still has huge development potential. Even though desert resources belong to the country and cannot be directly monetized, for researchers like them, that is not the point. In recent years, it is relatively easier for projects related to large-scale infrastructure to participate in the review of national science and technology awards. ?Furthermore, national science and technology awards are a necessary condition for promotion to academician status... I work at the Chinese Academy of Sciences, and the Institute of Geology and Geophysics has just been merged, and there is no work to do. It is normal to have such thoughts. ?However, understanding is understanding. ?Chang Haonan was a little disappointed ?This is indeed likely to lead to a series of significant results, but it is not an area of ??interest to him. Of course, just a little bit. After all, Lu Jinhuis test results have proven the effectiveness of data dimensionality reduction technology. And as long as you have this first application, you dont have to worry about the second or third time... You must know that high-order data dimensionality reduction is the same as numerical calculation methods and belongs to the methodology level. It is also enough to support another tool system similar in size to TORCH Multiphysics. Even, a new industry. As long as it can be promoted, there is no need to worry about discovering what Chang Haonan is really interested in. However, it can be seen that most people are still very interested in this result. ??While Lu Jinhui finished introducing this paragraph, someone quickly raised a question: "Xiao Lu, I saw that you tried several sets of concrete samples prepared by mixing desert sand and river sand. The strength is average, but the toughness seems to be good?" "This... our research is mainly about geology, not civil engineering, so I just released these concrete samples to give you a reference." Lv Jinhui replied: At present, we can only say that the specific characteristics are related to the blending materials and ingredient ratio. We cannot draw a conclusion based on several sets of test results. If there is such a high-tenacity building material, it will be useful in the permafrost we are responsible for exploring, and it can be used as a foundation or roadbed. Well, there are also soft soil foundations in coastal areas. You can also consider using this material for modification..." Everyone was talking to each other, and the lively discussion lasted for about twenty minutes. ?Although Chang Haonan had little personal interest, he did not say anything to stop it. First of all, listening to other peoples research content and inspiration is also part of research. ?For example, the idea of ??using high-toughness materials to modify the foundation seems to be very suitable for the Huaxia Petroleum Pipeline Bureau to reduce the engineering difficulty in the pipeline laying process. After the heated discussion came to an end, Li Nianheng finally spoke again: Researcher Lu, in addition to the characteristics of the samples from Group A of the Tengger Desert, I remember you just mentioned that the deep samples of the Badain Jaran Desert also have some parts that are different from what we have known in the past? As an expert in the field of satellite remote sensing, he still wants to know the special characteristics of geological areas that exhibit different signal characteristics. Because, if some rules can be summarized from it, it will be a shot in the arm for the entire space-based remote sensing industry. Around 2000, the overall scale of the aerospace industry was small, and its importance in the national economy had not yet been fully reflected. Simply put, it is still in the investment stage of long-term investment and has not seen any obvious results. Therefore, superiors still have some concerns about spending a lot of money on aerospace. ? And if he can produce some powerful results, he and his superiors will have a lot of confidence in the future when they ask for the launch of more remote sensing satellites. (End of this chapter) Chapter 859 Can the desert become fertile land? Chapter 859: Can the desert...be turned into fertile farmland? After Li Nianhengs question, the entire conference room finally returned to the relatively serious atmosphere at the beginning. ?Lu Jinhui also switched to another PPT immediately. "The samples from the Badain Jaran Desert are also divided into three groups: A, B, and C according to the distribution of sampling points. The characteristics of the three groups of samples are consistent. Among them, group B is the southern part of the desert close to the northern foothills of the Qilian Mountains and the A The right flag part has the most obvious characteristics, so I will use it as an example to explain..." "Relatively speaking, the situation of Badain Jaran Group B is different from that of Tengger Group A. Its chemical properties, bulk density, water holding capacity, saturated hydraulic conductivity, porosity and other hydraulic characteristics are similar to those of ordinary deserts. But the particle condition is quite different from typical desert sand. He said and posted two more photos that were similar to the ones before. ??Its just that the object of comparison this time is slightly different. It can be seen that the group B gravel samples on the left are very different in appearance. At least it doesnt look so round. However, due to inappropriate chemical properties and porosity, it cannot replace the role of river sand. Through the same effective stress test as in the previous step, we found that the normal contact pressure and tangential restraining force of Badain Jaran Group B were significantly better than those of Tengger Group A when there were obvious constraints on the sides of the sand column. Other samples are even better than some river sand..." The introduction ended quickly. ?This time, everyones feedback seemed much colder. Mainly... I really cant think of the significance of this feature for a while. After all, the use of sand is inherently narrow. After excluding construction materials, which is the most likely direction to produce results, it seems that only the semiconductor industry is left... Theoretically, it can be used to refine silicon. However, semiconductor-grade sand raw materials need to be relatively pure in composition and have good porosity. However, a lot of magnesium, manganese, and calcium can be detected in the ingredients of Badain Jaran Group, especially the latter two, which are harmful ingredients to the silicon industry, and the sand is relatively compact, which is not conducive to subsequent steps. deal with. In short, it looks a bit tasteless. ?However, Li Nianheng is still quite excited. Because such distinctive geological conditionswhether meaningful or notare very suitable for calibrating SAR signals. Professor Chang, Professor Meng, look, after we go back, can we start to use these data to summarize the patterns? Meng Zhenyuan, who had been an audience member just now, nodded: At least, we can now clearly see that the results obtained after data dimensionality reduction processing can indeed correspond to geological conditions with different characteristics..." ??Although the person who specifically designed the data extraction and processing algorithms was Chang Haonan, the starting point of everything, that is, the subject of remote sensing data analysis, still bears the name of Meng Zhenyuan. Even under the most stringent conditions, at this point, the project can be considered complete. "Professor Chang, what do you mean..." ?Li Nianheng never heard Chang Haonan''s response, so he turned to look at him. However, he found that Chang Haonan was holding his chin with one hand, looking down in deep thought, but never spoke. There was a brief silence. "Then...if all comrades have no other questions, I will introduce the preliminary situation of the two desert areas here first. The following should be the three areas at the northern foot of the Tianshan Mountains. Please..." ??As the temporary host Zhai Mingguo spoke, Lu Jinhui, who was already very satisfied with the presentation of his results, also began to pack up his things and prepare to give up the podium to the next person. ?However, at this moment, Chang Haonan suddenly raised his head again: "etc!" Lu Jinhui paused for a moment in putting away the computer, and then plugged the signal cable back in that had been unplugged. The projector lights up again. Professor Chang, please tell me. In addition to the normal contact pressure and tangential restraining force, have you measured the restraining tension and restraining moment of this set of samples? ?Chang Haonan pointed at the curtain. Restraining tension and restraining moment ?This somewhat awkward question made Lu Jinhui stunned for a moment, and then he shook his head in confusion: No ????In fact, the stress test itself is not an item in the standard testing process. As for the normal contact pressure and tangential restraining force that were already done, he filled them in with reference to papers in geotechnical engineering. Looking at Lu Jinhuis confused eyes on the stage, Chang Haonan organized his words and then explained: If this group of desert sand samples can simultaneously provide normal contact pressure and tangential restraining force under certain conditions... At this point, he felt that verbal description alone might be a bit feeble, so he looked at Zhai Mingguo next to him: Researcher Zhai, do we have a blackboard here? The latter looked around and found that there was indeed only the piece on the wall in the conference room. But it was blocked by the curtain. ?However, it is Chang Haonans request after all, so it must still be met. Within a few minutes, two staff members walked in from the door pushing a small blackboard on a pulley. Chang Haonan was not polite and stood up directly to the podium. ?This action made Lu Jinhui confused about where he should be for a while. Oh...you go down first. Chang Haonan said. Then he turned around, picked up the chalk and quickly drew dozens of small **** on the blackboard, and explained at the same time: Comrades, look. Assuming that sand particles have normal contact pressure, tangential restraining force, restraining tension, and restraining moment at the same time, and can also ensure a certain following degree of freedom, it means that each particle can not only generate restraining reaction force but also react along the restraining force. The direction of the force produces displacement. "And if we enlarge the angle of view, let the sand particles in the entire space have this characteristic, and put them in a rheological state in some way, then any particle can interact with other particles in any direction. A particle comes into contact to create a constraint. Even if the two particles separate, as long as the contact can be restored, the constraint can be formed again..." ?As he analyzed, the blackboard was gradually filled with white, yellow, and blue chalk marks, and even the small round **** originally drawn on it were difficult to see clearly. In fact, this kind of analysis should be carried out on a computer in a form similar to molecular dynamics simulation. It''s just that Chang Haonan just brainstormed, so now he can only present it on the blackboard. Fortunately, someone below still understood what he meant. "In other words, if there is some way to transform the sand... uh... this type of sand from a discrete state into a rheological state, then the original sand body that is separated one by one will be transformed into an omnidirectional binding force. It can be self-repaired to a certain extent..." Zhai Mingguo has obviously grasped the key points in Chang Haonan''s introduction. Its just that theres really no way to express it more vividly. At this time, Lu Jinhui, who had returned to his seat not long ago, added just the right sentence: The properties will be similar to... No, it will be basically equivalent to soil? As soon as these words came out, everyone in the entire conference room suddenly understood. Although the chemical composition of the soil converted from sand bodies is still different from real soil, its physical properties already have the ability to store water, nutrients and air. This is enough. ?As long as the ecological-mechanical properties can be maintained for a long time, the missing things can be made up by artificial means such as precipitation or fertilization. And if we take a longer view... It can even be said that deserts with sand body characteristics close to Badain Jaran Group B have the opportunity to transform into soil with conditions for large-scale production! For China, which is facing serious land degradation and sandstorm problems, this can be said to be a good rain after a long drought. ?Especially in the central and western parts of Mongolia Province and the central part of Longyuan Province, the terrain is actually slopes and plains that are easy to cultivate on a large scale. However, the land conditions are too poor to meet the demand. ??If these parts can really be converted into cultivated land... Everyone looked at each other. OK. I dont dare to think about it at all. (End of this chapter) Chapter 860 Change the world Chapter 860: Change the world Hundreds and thousands of years. It can even be said that since the emergence of large-scale civilization. Humanity is facing the threat of soil desertification. Especially in recent decades, the rate of land degradation has reached an alarming level. ?Although this process is not completely reversed, it usually occurs during the long wheelbase time measured in centuries. Now, an opportunity, an opportunity to change China and even the earth, at least the possibility, has been placed in front of everyone in the conference room. In comparison, the exploration situation in the latter two areas does not even seem that important. ?Of course, the meeting must be completed as usual. However, everyones enthusiasm for discussion has cooled down a lot compared to just now. Chang Haonan can naturally see this change in the atmosphere. So, after the last group of people introduced their work during this period, he ended directly: Lets do this, Researcher Zhai, please summarize the three sets of analysis and test results just now, including the original data, and give me and Chief Engineer Li a copy respectively. We will do parameter fitting when we go back. Zhai Mingguos requirements for Chang Haonan are naturally clear: "We have prepared these before today''s meeting. A document clerk will send them over when you two leave." Then he changed the topic again: In addition, Professor Chang, I see that there are many other abnormal points on the satellite map you sent. Do we need to organize a second round of exploration immediately? After all, Zhai Mingguo is serious about research. Although his thoughts have already flown to Mongolia Province, thousands of kilometers away, and he wishes others could fly there with him, he will not abandon the work at hand just because of this. What''s more, he also knew in his heart that if the soilification of deserts could really be achieved, at least half of the credit would come from the remote sensing satellite and the high-dimensional data processing algorithm developed by Chang Haonan. So even from his own point of view, he should help sharpen the "knife" faster before chopping wood. ?However, Chang Haonan waved his hand: "Being not." "When we go back and finish the fitting, we should be able to upgrade the algorithm and reprocess the satellite images with the 2.0 version of the algorithm. And by that time, there may be updated images sent back... Anyway, we will decide on the second choice after a while. The specific tasks of round exploration would be more appropriate. At this point, he turned to look at Xiao Wenchang on his right: Besides, I think Team Leader Xiao and the others have been working continuously for a long time. They should take some time off to at least have a complete Spring Festival..." The latter suddenly heard his name and was stunned for a moment before expressing his stance: Well... our team members were used to it in the past..." ?That''s what he said, but when he heard Chang Haonan say that there was a period of rest, several members from the exploration unit still showed relaxed expressions. Who wouldnt want to stay at home for a little longer if possible? ?After arranging the tasks that were directly related to him, Chang Haonan added to Zhai Mingguo: "Furthermore, I would like to send a copy of today''s inspection report on the permafrost conditions at the northern foot of the Tianshan Mountains to the comrades in the railway engineering department. When I cooperated with the Institute of Computing Technology last time, I heard them say that in addition to the Qinghai-Tibet Railway, the country also has Plans to build railways in the Tianshan Mountains. Including if there are remote sensing and geographical exploration results related to the Tibetan Plateau in the future, we can also cooperate with them by the way. At the worst, the railway system will have to spend some money from infrastructure funds..." After some arrangements, today''s long meeting finally came to an end, and everyone left the table and prepared to leave. ?However, Chang Haonan specifically stopped Zhai Mingguo: "If we really want to implement this idea of ??desert soilization, there is no hope for us to stay in the capital. Moreover, it also involves land management and agronomy. We are not experts in this field, so we still We need to cooperate with some colleges in the central and western regions that are close to the desert terrain. Do you have any ideas in this regard? " Although geotechnical science and soil science sound a bit similar, the former is earth science and the latter is agricultural science. Even the major categories are different. They are fields that Chang Haonan has not even had much contact with. ??Moreover, as time entered the second half of 2000, the cumulative number of safety test hours of Turbofan 10 continued to break new highs. ?If nothing unexpected happens, in another 2-3 months, Turbofan 10 will enter the design finalization process. It is estimated that throughout the fourth quarter, Chang Haonan''s main focus will be on this matter. After that, equipment imported from Europe should also arrive, and research on pulse laser processing should begin again. Therefore, Chang Haonan can only provide some theoretical and engineering guidance at most, and it is impossible for him to stay in Mongolia. The situation of Zhai Mingguo is similar.????So, they need help. I know the Meng Provincial College of Agriculture and Animal Husbandry...well, he should be a professor at the Agricultural University now, named He Guangyou. He specializes in soil erosion. He has been in contact with us during field exploration before. Zhai Mingguo immediately replied: Although the platform is not very good, he has not achieved many results, and the strength of the research team is average, but his research is still relatively rigorous. Strength generally doesnt matter. Chang Haonan doesnt really care about this: The main thing is to be able to complete the task with quality and quantity according to our requirements. Zhai Mingguo nodded: Then let me contact him and see when he is free recently. Lets talk about it together? "Can." Zhai Mingguo''s efficiency is even much faster than Chang Haonan''s estimate. Less than a week later, he contacted the latter and said that Professor He Guangyou had arrived in the capital. Considering that this project must be led by Chang Haonan, the three simply chose to meet in a small conference room at Beijing Hang University this time. After a brief exchange of greetings, Chang Haonan got straight to the point and stated his idea of ??"turning sand into soil" and introduced the theoretical basis he had previously told Zhai Mingguo and others in more detail. After listening, He Guangyou pondered for a long time. To be honest, he is not proficient in these theoretical knowledge. Even after hearing it just once, he still feels a little confused. But no matter what, He Guangyou still believed in the names of Chang Haonan and Zhai Mingguo. So the focus is actually on the operation - The desert area in central and western Mongolia Province is a terrain that he is very familiar with. In fact, He Guangyous hometown is in Bayannur City, near Alxa. ?However, after all, Chang Haonan has no knowledge of agriculture. His ideas are almost entirely based on physics, so he needs some time to think about how to implement the project. Chang Jiao, there are two things I need to say first. After a few minutes, He Guangyou looked at Chang Haonan again. The latter nodded and signaled the other party to continue. "First of all, your idea just now is mainly to improve the binding force of the sand body and convert the dispersed sand into a rheological state. However, in actual production, most of the problems faced by the soil are that the agglomeration is too serious, so If we blindly increase the binding force, it may be okay at first, but it may lead to the deterioration of the soil condition to the other extreme after a few years. He Guangyou said: "In addition, these soils are modified from sand, so at least in the first few years, it is difficult to grow food... In fact, considering the problem of salinity, it may be difficult to grow anything, so my suggestion is that it is best to find A crop with relatively high salt-alkali tolerance but relatively low soil fertility requirements..." "for example?" ?Although Chang Haonan is not indifferent to grains, he has never cultivated land and has no idea about this kind of thing. "for example" He Guangyou hesitated for a long time: Natural crops may not have such good properties, so we may need a breeder to cultivate some alfalfa or legume crops in this direction... (End of this chapter) Chapter 861 Breeding expert Chapter 861 Breeding Expert Alfalfa, or soybean Chang Haonans understanding of these two crops is limited to the fact that the former is a high-quality forage, while the latter is an oil crop and feed material. Then there are some vague memories from before the college entrance examination, such as rhizobia and the like. ?However, He Guangyous proposal reminded him of something that was not directly related to the present In the last life, two years later, in 2002, a well-known soybean breeding expert in Shandong Province was robbed by two gangsters on the street. During the process, he was stabbed. Due to the remote location and no one, Discovery and rescue ultimately resulted in tragic death. Although in the first few years of the 21st century, the overall security level in China was relatively average, and street robbery was certainly not a rare case, if not a daily occurrence, the identity of the victim this time was special after all, so this incident was considered a cause for concern at the time. Quite a stir. ??Together with the kidnapping case of Academician Xuriqian that occurred later and the plot was even more outrageous, it became a relatively famous criminal case in the scientific research circle that year. ?Even the local Agricultural College when the incident occurred was later merged into Daocheng Agricultural University, and it is said that it was affected by this incident. Chang Haonan''s thoughts were flying further and further, but from the perspective of He Guangyou on the opposite side, the former just thought about it for a long time after repeating his proposal and had not yet given an answer. Apparently confused. Even though he didnt understand why Chang Haonan was troubled, He Guangyou still explained: A few years ago, I conducted research on the soil water and soil conservation capacity in central and western Mongolia and central Longyuan Province, and found that after mixing ryegrass and alfalfa, leaving the root systems of these two crops during the harvesting process can effectively improve The shear resistance of the soil, and in a certain proportion, can reduce the cohesion and internal friction angle of the soil. " In addition, alfalfa has a root nodule structure like soybeans, and the most suitable planting environment is soft sandy loam, which is very suitable for the newly modified desert terrain, but it consumes a lot of water, so drought-tolerant varieties need to be developed..." Even though He Guangyou was previously rated as average by Zhai Mingguo, he is still an agricultural researcher no matter how average. He naturally talks about his research in a clear and logical manner. Perhaps because the two big guys were listening, he became more and more excited as he talked, and soon got into the content of crop science and soil science. In short, the way of heaven is reincarnation, and Chang Haonan was finally baptized by a storm of completely incomprehensible knowledge. That...Professor He. Finally, when the other party finished speaking again and paused for a moment, Chang Haonan quickly interjected. Zhai Mingguo, who was next to him, put a glass of water in front of He Guangyou just right. ?This interrupted the opponent''s continuous casting. If thats the case, then where can I get the drought-tolerant and salt-alkali-tolerant crops you mentioned? In fact, as early as just now, Chang Haonan had already decided to take this opportunity to bring the breeding expert named Zhuang Bingchang into this project. The overall public security situation in China needs to be gradually improved with the times and economic development. It is impossible for it to become what it will be more than 20 years later just because of what Chang Haonan did. Even if he takes out the Skynet system now, all parts of China will not be able to find enough money and people to install and maintain this system. Zhuang Bingchang is now just a well-known researcher at the Academy of Agricultural Sciences in the industry. Even if he is an overseas returnee who is not very common in this era, without any clear reason, it is impossible for Chang Haonan to apply for a set of security guards for him - Even if you can, others may not be willing to do it. ?Since the security standards were raised early last year, even a homebody like Chang Haonan sometimes feels that life is inconvenient. So, the easiest way is to use a big project to retain the other party for a few years. The public security in Beijing is relatively good. ?On the other hand, the Mongolian province is a test field and will be located in a desert area. There may not be many people within dozens or even hundreds of kilometers. It is safer after all. But Chang Haonan has never been exposed to the field of agriculture before. If he directly named someone to join the project, it would undoubtedly be very abrupt. So, he thought about having some more trouble with He Guangyou and then asking him to make a list. ?At this time, there are not many experts in soybean breeding in China, and Zhuang Bingchang is likely to be among them. ?However, He Guangyous reply allowed Chang Haonan to skip all the twists and turns: "In current breeding research in our country, most people still follow the footsteps of Academicians Yuan and Academician Li, and are engaged in rice or wheat. After all, they are staple foods. The higher authorities attach great importance to them and have a lot of funds. Others are engaged in corn and cotton. As for the research on cash crops such as soybeans and alfalfa... there are not many. " Having said this, he tapped the table with one hand and thought for a moment: I know that the Jilin Academy of Agricultural Sciences just introduced an expert named Zhuang Bingchang in June who graduated from the University of Hohenheim in Germany and was a postdoctoral fellow at the China Agricultural University He Guangyou was obviously not very familiar with Zhuang Bingchang, but his tone was still respectful. After all, studying in Germany is one of the most difficult areas in the study abroad community. There is a saying that "the three years of studying in Germany may be the longest seven years of your five years in life." Its already very impressive just to graduate. Chang Haonan almost laughed out loud when he heard this: Can you contact Professor Zhuang? He Guangyou did not reply immediately, but lowered his head and took out a transparent floppy disk box from his briefcase. ??The floppy disks inside are neatly categorized according to different colors, and there are sticky notes on the sides. Obviously, these are all relevant materials compiled by He Guangyou. Zhai Mingguos previous evaluation of his rigorous academic attitude should be reliable because he sees big things from small things. You two are laughing, I dont use computers very much, and I usually go to the wilderness on business trips, so I didnt buy a laptop, so I had to come here with this box. He Guangyou said as he picked out a floppy disk. I havent had contact with him before, but there are several papers he has published, and there are contact information on them. ??These days, domestic journals are quite wild. Sometimes not only the work unit and email address of the corresponding author are given, but also the authors headshot and office phone number are listed. ??Official box weapons belong to it. ?However, at this time, it suited Chang Haonan''s wishes. He took the floppy disk and inserted it into the laptop. There are several papers in it. By the way, since researcher Zhuang has just arrived at Jilin Agricultural Research Institute from Agricultural University, shouldnt his previously published papers have the contact information of Agricultural University? Di Mingguo, who had been silent next to him, suddenly spoke. He should have entered the Agricultural Research Institute with results. He just published a new paper, the one with the latest date is the one. He Guangyou replied. ?Chang Haonan said in his heart that he knew how to play. Bringing achievements into groups is a common practice among young teachers born in the 1920s or 20s. It means to keep part of the research results during your Ph.D. or post-doctoral studies, and then distribute them after you get a promotion-or-leave contract. This can be counted as the achievement when becoming a full-time student. If you are lucky, you can even get through the inspection phase without any stress. I just didnt expect that this kind of gameplay is already available now. Soon, he found the PDF document that had just been added a few days ago from a large pile of files. Construction and gene mapping of higher density map of F linkage group in soybean genome ?This document is even in the status of being accepted but not officially published. ?After clicking on it, I found out that one of the authors is Zhuang Bingchang. ??Although he is not the corresponding author, this document even contains submission information. I dont know what channel He Guangyou obtained it from. In short, the authors basic information and contact information are listed at the bottom of the first page. Im not a well-known expert. Researcher Zhuang probably hasnt heard of me. He Guangyou said: So it might be better for you two to contact him. (End of this chapter) Chapter 862 A quota on the Shenzhou spacecraft Chapter 862: A quota on the Shenzhou spaceship ?Later in the day. Changchun. Jiji Provincial Academy of Agricultural Sciences. ?Zhuang Bingchang was in the office, looking at a form on the computer screen in front of him with some distress. He came here from the Agricultural University three months ago, firstly because he completed his undergraduate and master''s degrees in this city, and secondly because the Northeast is suitable for the growth of soybean crops, which is in line with his research interests and directions. . But after obtaining better research conditions, new problems followed one after another In soybean breeding, the most advanced field in the world is obviously genetic modification. The United States approved the commercial cultivation of genetically modified soybeans in 1994, and Brazil and Argentina in 1998. These three countries are also major exporters of soybeans ?However, most countries in the world are still cautious about this. After all, when it comes to gene bank issues, there is no room for sloppiness. Huaxia is also among them. It has only opened up the import of genetically modified soybeans year by year, as well as certain restrictions on genetically modified breeding research. This is certainly understandable. But the problem is that breeding is a bit like engineering. Experimental fields are equivalent to blueprints. If you dont engage in commercial planting, it can only be regarded as a small effort. And Zhuang Bingchang was not satisfied with just publishing papers. ??He hopes that his research results can be truly implemented. ?The only feasible way is to engage in cross-breeding. However, unlike transgenic operations, which can cut and graft gene fragments from different organisms, cross-breeding can only be carried out between the same species. Generally, cultivated crops and wild species with richer traits are used. But the problem is. Where can he find so many varieties of wild soybeans? So Im stuck here. ?Until the end of last year, something happened that turned his research around. On November 20, 1999, the Shenzhou-1 unmanned spacecraft was launched. In the return capsule of the spacecraft, a large number of crop seeds were carried. Use space radiation to randomly mutate these seeds, and then select beneficial varieties for cross-breeding. That is space breeding. ?This is not the first time China has conducted space breeding experiments. But this is the first time it has been scaled up Compared to searching for wild species all over the world, this operation is obviously much more efficient. The Shenzhou-2, which is planned to be launched early next year, and the Shenzhou-3, which is planned to be launched early the next year, are good opportunities. But the problem is that the total amount of cargo carried by the spacecraft is limited, and the quota is really tight. ?Although he is relatively well-known in the industry, he is not famous enough to participate in this level of competition... ?Just when Zhuang Bingchang was struggling, the landline phone placed on the corner of his desk suddenly rang. Look at the area code, its a number from Beijing. Postdoctoral fellow Zhuang Bingchang is at the China Agricultural University in Beijing, so he naturally picked up the receiver: Hello, may I ask who you are? The phone call was naturally made by Chang Haonan. I am Chang Haonan from Beijing University of Aeronautics and Astronautics. Are you researcher Zhuang Bingchangzhuang? I am, what do you want from me? ?Zhuang Bingchangs answer was very concise, but at the same time, his mind was running rapidly. He was impressed by the name Chang Haonan. After all, there was such a big round of news just a few months ago. I dare not say that all people in China, at least most of the Chinese people who often pay attention to the news, must have an impression of this name. But Zhuang Bingchang knew more. ??In addition to being a professor at Beijing Hang University, the other party is also an executive of the newly established China Aerospace Engine Group ?This is of course also public information, but if you dont check it specifically, it will not be made public like solving the Poincar conjecture. ?Furthermore, two years ago, Chang Haonan achieved the bizarre achievement of receiving three National Science and Technology Awards at the same time! Definitely the boss among the bosses. ?However, what makes Zhuang Bingchang a little puzzled is that the other party, who is engaged in aviation, is calling him for what? So he still retained a little vigilance in his heart. What if he is a liar? The two of them have never crossed paths before, and the other''s voice Fortunately, Chang Haonan on the other side of the phone had already thought of this: "Researcher Zhuang, you can open your email address, which is the one used for submission. I have sent you an electronic version of the cooperation instructions, as well as a photo, which is a letter of introduction with the official seal of Beijing Hang University. That should be enough to identify me." Professor Chang, wait a moment, let me take a look. Actually, after hearing what Chang Haonan said, Zhuang Bingchang was already convinced. ? He ??held the receiver between his ear and his shoulder, freed his hands to open a browser and enter his email address. Soon, a photo that was not very clear, but still barely legible, and a PDF document were downloaded to his desktop. ?Chang Haonan has switched the phone to speakerphone and is drinking tea with He Guangyou and Zhai Mingguo while waiting for the other party''s response. They are not in a hurry. Although it was an inter-provincial long distance call, I used the schools phone anyway. On the other side, Zhuang Bingchang quickly put the microphone on the table next to him ??Its not that he couldnt maintain the posture just now, but the content in the document! Desert soilization! On a smaller scale, oases can be created in the desert, at least on the edge of the desert, thereby gradually controlling or even reducing the area of ??the desert. ? ? And speaking more seriously... ? ? ? Then it involves China''s food security issue. As a crop breeding expert, Zhuang Bingchang naturally has this judgment. Even if the transformed sandy soil cannot grow staple crops, there is no harm in increasing the area of ??cultivated land. ??It''s a big move to move the world, move some suitable cash crops there, and then use the freed land to grow staple foods and that''s it. The reason why the other party contacted him was that in the process of converting desert to soil, drought-tolerant, salt-alkali-tolerant soybeans or (and) alfalfa crops are needed. And this happened to be his research direction. In fact, Zhuang Bingchang currently has a drought-tolerant soybean in the test field. Its a pity that they are genetically modified crops. Even the genes of a cold zone fish were transferred. In the classification of biological systems, it is a cross-border operation. Even in desert areas, if you want to cultivate a large area, you may not be able to get approval. Professor Chang, I am very interested in your suggestions. ?Zhuang Bingchang picked up the microphone again: "But before I make a decision, I have to explain something to you." "You say." ?Chang Haonan took a slow sip of tea and said in a calm tone: In crop breeding, especially traditional breeding using hybridization, luck is often the decisive factor, and the cycle is very long. ?Zhuang Bingchang replied: So, even if I join, I cant guarantee that I will take it out within a fixed time limit At this point, his voice stopped abruptly. Originally, Zhuang Bingchang wanted to give Chang Haonan a vaccination. ?There is no doubt that the other person is a genius type of scientist. Generally speaking, when working with this kind of person, you will gain a lot but also be under a lot of pressure. He is not afraid of pressure, but the problem is that crops dont care whether you are stressed or not. If it doesnt grow, it means it cant grow, and nothing will work. But halfway through speaking, Zhuang Bingchang suddenly remembered something. This is the issue of space breeding that he was still worrying about just now. Chang Haonan is a professor at Beijing University of Aeronautics and Astronautics. Although he is engaged in aviation, he seems to have something to do with the aerospace field. Hello? Researcher Zhuang? Chang Haonan on the other side of the phone heard the other partys sudden silence and thought it was a signal problem: Can you hear me? ?However, Zhuang Bingchangs voice soon came again: Professor Chang, if you can help me get a spot on the Shenzhou spacecraft, then the probability of successful breeding will at least be much greater. To put it bluntly, space breeding means that the poor rely on mutation. As for what happens after the mutation, it all depends on fate. But as long as you bring enough seeds at once, you can always open the blind box and get something useful. Actually, Zhuang Bingchang just guessed the process wrong, but he guessed the result correctly ?Chang Haonan is not familiar with the Aerospace Institute of Beijing Hang University, but he does have a close relationship with the Aerospace Institute. ??After all, the National Space Administration also bears the brand name of the System Engineering Department of the Commission of Science, Technology and Industry for National Defense. But the former would have misunderstood the meaning of the sentence just now, and thought that this quota meant that Zhuang Bingchang wanted to go to heaven. ?So I was immediately shocked and almost spit out the tea in my mouth: "ah?" Researcher Zhuang, this Shenzhou spacecraft, the Shenzhou 2 launched next year, and even the Shenzhou 3 the year after that, are all unmanned full-state spacecraft, and even if they are manned, it is impossible for you, a non-professional, to go up..." Actually, we cant blame Chang Haonan for letting himself go. After all, before he was reborn, there was already a non-professional astronaut who was a payload expert and followed Shenzhou 16 into space. Even his alumni. ?It is said that he is holding remote group meetings with his research team on the space station... Noits my fault that I didnt make it clear ?Zhuang Bingchangs head is full of black lines: Its not that I want to go to heaven, but that I want the seeds I cultivate to go to heaven. I want to use existing improved seeds and rely on the strong radiation environment of space to promote mutation to see if we can further change the traits we want. ?At this time, Chang Haonan also realized that he had just lost his mind. If its just an experimental load He raised his head and thought for a moment. ?Although the project in front of us has changed beyond recognition now, in the final analysis, it originated from the National Space Administration. Coupled with my hundreds of millions of connections with the Science and Technology Commission... In short, Chang Haonan finally gave a positive answer. ?But I didnt say it to death: I can apply for it for you, but I cannot guarantee the volume or weight that will be allocated to us. ? Zhuang Bingchang did not raise the specific quota requirement at the beginning. In fact, he was overjoyed to get the first half of the guarantee: Okay, then I will rush to the capital as soon as possible in the next few days to meet and chat with you! (End of this chapter) Chapter 863 Get a patent first! Chapter 863 Get a patent first! Zhuang Bingchang still has a lot of half-finished experiments to finish. In addition, Chang Haonan''s breeding and desert transformation are long-term projects that take years to count. He really doesn''t care about the time spent in the past few days. So, the former finally proposed to arrange his trip a week later. ?Chang Haonan immediately agreed. A week later...will it be a little long? After hanging up the phone, Zhai Mingguo asked. Actually, he just wanted to ask Zhuang Bingchang to come as early as possible, but Chang Haonan agreed too quickly, leaving no time for him. While speaking, Zhai Mingguo also glanced at He Guangyou next to him. ?It doesn''t matter that he and Chang Haonan work in the capital, but He Guangyou''s trip to Beijing is considered a business trip. These days, funding for colleges and universities is not that sufficient. ?Especially, Meng Agricultural University is just an ordinary provincial university. Otherwise, He Guangyou would not have brought a box of floppy disks instead of a computer. This is not a big problem. ?Chang Haonan also noticed Zhai Mingguo''s eyes. ?But he has his own solution: Ill contact the First Aviation Power Hostel later and ask Professor He to stay there for a few days. When the Aviation Industry Corporation of China was split, its non-core business departments were naturally split between the two groups. This first aviation-powered guest house is the 625 guest house in the past head office period. Last year, together with the 625 Institute (Aviation Manufacturing Technology Research Institute) itself, it was placed under the name of the Aerospace Power Group. The notes written by Chang Haonan can naturally be used. Zhai Mingguo next to him was just a tactical retreat, with an expression on his face that said, "I can still play like this, I''m disrespectful." So this week...is there anything I need to do? He Guangyou next to him had already been arranged clearly before he could react. ??But its not embarrassing to live in other peoples homes for free... "Um" ?Chang Haonan lowered his head and thought carefully, and finally he found a job: "I''m going to spend this week writing the patent, but the patent specification may involve some background technology and the like. I don''t know much about the parts related to desertification and agronomy. Professor He, can you help me? He Guangyou just arrived in the capital from Qingcheng today. He is not particularly clear about what happened in the past few days. He just assumes that Chang Haonan has been researching this technology for some time and is about to enter industrialization, so it is logical to register a wave of patents. ?So he nodded simply: Okay, I have a lot of them in the floppy disk. When the time comes, tell me your specific needs, and Ill just find a computer and make some changes. ?However, Zhai Mingguo''s reaction was completely different. After listening to Chang Haonan''s words, there was even a moment of confusion on his face. It wasnt until He Guangyou nodded to express his attitude that he came back to his senses: Wait...wait a minute. Patent? ?Others dont know it, but Zhai Mingguo has witnessed the entire process of this desert improvement project from scratch. Chang Haonan proposed this idea during a meeting at the Institute of Geology and Geophysics last week. ??And it was obvious that he had the idea after listening to Lu Jinhuis report. This is not an earlier study at all. ?According to Zhai Mingguo''s original idea, the visit to Chang Haonan this time, and even after Zhuang Bingchang arrived, should be within the scope of preliminary discussions. After the general direction is decided, then enter the serious research and development process. How come the intermediate steps disappear and the patent registration step is reached? "yes." ?Chang Haonan nodded naturally. Nodidnt we just come up with this idea at the last meeting? Zhai Mingguo showed a puzzled expression: "You now know what materials can be used to transform the sand body from a discrete state to a rheological state?" ?Chang Haonan then understood why the other party looked like he had seen a ghost. Within less than a week, it was certainly impossible for him to finalize the final materials. Even if the hang is enabled, it wont work. ?This "desert soilification" project has only just reached the stage of defining several major material categories through numerical calculations in the system. More specific formulas and even process techniques still need to be continuously tested. ??However, these are not required to write a patent. As long as the principle of a patent is feasible, it does not matter whether the actual operation is feasible. ?Just like before Chang Haonan was reborn, there was a period of severe smog, so someone registered a patent for manually using a large fan to remove the smog. Although everyone knows that this thing is impossible to operate, as long as the principle can be explained (and the patent application and service fees are paid), it can still be passed. Its just that no one will use it. After all, if the Patent Office is still responsible for verifying the feasibility of patents one by one, it will directly become a bottomless pit of funds. The specific materials used are of course unclear. Chang Haonan smiled and shook his head: But as for patents, lets register a few materials with potential applications first. Its a trap. We can add some details after the results are produced later. Zhai Mingguo finally breathed a sigh of relief. But then I thought about it. ?This seems to be a bit exaggerated... We havent done any specific experiments yet. How do you know which materials may be promising? He asked with some confusion: Cant we just register all the commonly used materials? Of course its impossible Chang Haonan shook his head: Lets not talk about whether the patent office will allow this. Even if it is allowed, there are thousands of material categories, especially polymer materials. Im afraid I will be exhausted just writing the application..." "That" Zhai Mingguo felt that he could hardly recognize the world anymore. This involves the new discipline I am currently studying, the field of computational materials science. ?Chang Haonan leaned his upper body back and began to explore his new research field: In general, the key properties of sandy soil are the multi-directional constraints formed between soil particles, and the external properties are rheology, shear strength, compressive strength, stiffness Fortunately, these are relatively simple and direct mechanical parameters, and I have some knowledge of numerical calculations, so I tried to establish a mathematical model for the interaction between sand and soil particles. Judging from the results, the effect is pretty good. I found several modified cellulose and biodegradable polymers that meet my requirements. I plan to register them all this time. Zhai Mingguo: He Guangyou: ?Although Chang Haonan said a lot, he did not disclose the specific calculation method In fact, even if it is revealed, it is unlikely that the two people next to you who are engaged in geology and agronomy will understand it. So he is not worried about risks such as patent leakage. What I just mentioned is actually not even a performance report. It can only be regarded as strengthening the confidence of this newly formed research team. At present, the effect seems to be pretty good... (End of this chapter) Chapter 864 Believe me, our satellites are for civilian use! Chapter 864 Believe me, our satellites are for civilian use! Patents naturally do not need to be written by Chang Haonan himself. Anyway, he had already sorted out the core calculation process before. As for the other parts that need to be inked, most of them are clichs and can be left to the students who are new to the research group to complete. Wang Jie, who has not yet left for Shanghai, is very suitable. After all, writing patents is a specialty of the postgraduate stage and must be tasted. As for Chang Haonan himself... After completing the deployment of the mission, he set off for the Science and Technology Commission. Since he promised Zhuang Bingchang to fight for a place for his seed, he will definitely not break his promise. Before setting off, Chang Haonan made a special phone call to confirm whether Ding Gaoheng was in the office ??Although he still has the permission to enter through facial recognition, he has not been to the Commission of Science, Technology and Industry for National Defense in several months. ?The last time I met Ding Gaoheng, I was invited to his home for dinner just after I sent out the paper proving the Poincar conjecture. ?Coming here this time, I even felt a little like revisiting my old place. Director Ding. ?Chang Haonan came to the door of Ding Gaoheng''s office, habitually preparing to knock on the already open door and then walk in directly. But as soon as he finished speaking and before he could raise his hand, he saw another person sitting in the room. ?Hence, he stopped. When outsiders are around, you should behave more formally. Ding Gaoheng, who was talking to the man on the sofa, heard a knock on the door and turned around to see Chang Haonan standing at the door. Xiao Chang, come in and sit down. The other person heard Ding Gaoheng calling Chang Haonan and immediately looked back. They are still acquaintances. Director Luan? ?Chang Haonan''s eyes flashed with surprise for a moment. ?But then he walked forward and shook hands with the other party: "haven''t seen you for a long time." After saying that, he sat on another sofa next to him. Luan Wenjie, Director of China National Space Administration. This is indeed such a coincidence ?Although Chang Haonan called Ding Gaoheng just now, he did not explain the specific purpose of his visit. Nominally speaking, the overall commander of the manned space project is the director of the Commission of Science, Technology and Industry for National Defense, namely Ding Gaoheng. But this is mainly to facilitate the coordination of the power of the entire military-industrial system, and the nominal component is relatively large. Therefore, in order to obtain a breeding opportunity for Zhuang Bingchang, Luan Wenjie must finally be given the opportunity. Turns out, the rightful owner happened to be there. ?However, Chang Haonan did not speak immediately after sitting down. We are all colleagues under the same system, and now we are not competing for houses or land. We still have to talk about first come, first served. ?However, although Chang Haonan did not interrupt the topic, Luan Wenjie took the initiative to look at him. Mr. Chang, Director Ding and I just mentioned you. "oh?" Chang Haonan, who was originally going to be in a daze for a while, became interested. ?You can''t predict the situation between two people facing each other, right? Mr. Chang, you should know that our country has launched a total of three resource series remote sensing satellites independently and in cooperation with Brazil. Luan Wenjie did not use a questioning tone, so Chang Haonan just nodded slightly. ?Of course he knew this. After all, the satellite image that led to a series of topics and projects came from the Ziyu-201 satellite. The former immediately continued: In the past few years, especially in the six months since the launch of the two Ziyu-2 satellites, space-based remote sensing has helped us solve many problems that were not easy to overcome in the past. Of course, we also borrowed a lot of light from Mr. Chang. Borrowing Chang Haonans light, it naturally refers to the high-dimensional data dimensionality reduction algorithm he developed. However, Chang Haonan himself was a little confused. Wait a moment, Director Luan. He raised his hand to interrupt the other party: I have just begun to study the data obtained through data dimensionality reduction. Can this all benefit from my light? Chang Haonan has indeed relied on that algorithm to process different data several times, but the further results, whether it is the desert soilization he directed, or the geological analysis of permafrost and loess plateau that were previously handed over to other systems for research, are all Haven''t taken it out yet. How come you have solved a lot of difficult problems? I havent exerted my strength yet? But the way Chang Haonan looked at Luan Wenjie, it was obvious that he wasn''t joking. ??The interrupted Luan Wenjie and Ding Gaoheng looked at each other and explained with a smile: "The data that has been reduced from too high a dimension still needs to be analyzed by Mr. Chang. However, after some relatively low-dimensional data has been reduced in dimension, we rely on the old method of increasing the sampling density and comparing it with known geographical information. , a lot of useful content can still be unearthed. ""For example, in July this year, we relied on these data to predict a large-scale flash flood and debris flow in Ziyang County, Qin Province, and relocated people in 12 towns in advance. Hundreds of casualties were avoided..." Chang Haonan suddenly realized. High-dimensional data is just a general term. As Luan Wenjie said, it can still be divided into three, six or nine grades. After dimensionality reduction, the forms of low-dimensional data are also different. The only thing they have in common is that because they have become two/three-dimensional data, they can all be directly recognized by human perception. ?Of course, just because 2D and 3D data can be read does not mean that it can be easily understood. Thats why the data verification mentioned before needs to be carried out. Because Chang Haonan is the developer of the algorithm, and coupled with the openness, his focus is naturally on data with higher original dimensions. The amount of information hidden behind these data is larger, but correspondingly, it is more difficult to parse. However, the route chosen by the space agency is the normal one: easy first and then difficult. So its normal to be able to produce some results quickly. In particular, the risk of geological disasters such as flash floods has obvious characteristics. If it is an earthquake, it may be more troublesome. At least the algorithm he is currently developing certainly cannot handle it. Chang Haonan is naturally happy to see this. After all, the route he set for himself when he was reborn was not just to take out the finished product from Doraemon, but to promote the development of related industries in China. In the fields of aviation and machinery, he has achieved this goal. As for aerospace, now is at least a good start. ?While Chang Haonan was thinking secretly, Luan Wenjie picked up the tea on the table and took a sip, then returned to the previous topic: In short, through this period of application, superior units have intuitively realized the role and urgency of building a space-based remote sensing system, so they have approved a new amount of funds for us. Are we going to launch other remote sensing satellites? ?Chang Haonan now understood what the other party meant. Yes, but this time its not a resource series. Lan Wenjie replied: Originally, according to the plan, we would launch my countrys first marine resources satellite, Haiyang-1A, between 2002 and 2003 to provide the Ministry of Land and Resources and the State Oceanic Administration with marine biological resource development, marine pollution monitoring and marine Scientific research and other services. But now that we have this funding, we are ready to speed up the progress and strive to advance the launch mission to the first half of next year, and no later than the third quarter of next year. Thenwhat do you need me to do? ?Chang Haonan asked bluntly. After Luan Wenjie heard this, he no longer cared about him: "The current resource series satellites transmit the original data from the onboard data system, and then our ground stations process it to obtain the results. The advantage of this is that the requirements for the satellite are relatively low, but the data can only be collected when the satellite is overhead. The timeliness of transmission and exchange is very poor. Of course, the resource series satellites mainly serve the territory of our country, which is not a big problem. However, the ocean series satellites are mainly targeted at the Pacific region. If we continue to use the old method, it may not meet the requirements. So, we hope to hand over at least part of the data processing to the onboard computer, which can greatly ease the transmission pressure... Hearing what the other party said, Chang Haonan immediately curled his lips: "Director Luan, the development of marine biological resources, as well as marine pollution monitoring and marine scientific research... don''t seem to be very timely, right?" He thought to himself that if Haiyang-1 only had this function, he would dare to eat the satellite. Sure enough, after hearing his question, Ding Gaoheng, who had been sitting behind the desk without speaking just now, smiled and said to Luan Wenjie: Ill just say you cant fool him... Then, he looked at Chang Haonan and explained: "In the past few years, we have developed an active radar system for large and medium-sized water targets based on the technology of the Soviet Union''s ''Legend'' ocean surveillance system. In addition to the tasks that Comrade Wenjie just mentioned, Ocean One also Be responsible for conducting effectiveness testing of this radar. ?Chang Haonan''s eyes widened slightly. ?He just guessed that this satellite must have military purposes, otherwise there would be no need to pursue front-end data processing and timeliness. But the big game is still completely unexpected: I remember that the legendary system needs to be powered by a spaceborne nuclear battery. Our Ocean One Thats definitely not the case. Lan Wenjie shook his head: The safety of nuclear batteries is too scary. Fortunately, our radar equipment consumes relatively low power, and we have canceled a data link system for direct communication between satellites and fleets, so solar panels are enough to serve..." So thats it ?Chang Haonan has not completely recovered from the shock just now The "Legend" ocean surveillance system was the core of the Red Navy''s anti-aircraft carrier system in the 1980s. It includes the active US-A and the passive US-P. It can locate targets individually based on the baseline interference phase comparison method, or it can also be combined with dual satellites. Active and passive composite positioning. Although the positioning accuracy itself is relatively average, only at the level of 100 meters or even kilometers under different conditions, anti-ship missiles with active radar seekers themselves do not require particularly precise target information. It seems that in recent years, the country has bought a lot of things from the north that were not obtained in the previous life. ??If the ocean surveillance system can be built more than ten years in advance, it will definitely be a huge threat to the US military, which highly relies on the naval fleet for physical deterrence. Combined with the anti-ship ballistic missiles he had considered before... ??Dont you already have this ultimate weapon? (End of this chapter) Chapter 865 Can we go to space to farm? Chapter 865 Can we go to space to farm? Chang Haonan naturally has to actively participate in the rigorous work of the ocean surveillance system. ?However, he did not immediately give an agreeable answer. After all, Haiyang-1 is definitely still a civilian satellite belonging to the State Oceanic Administration. So the data obtained by other equipment on the satellite also needs to be processed together. ?However, in this case, the calculation pressure will be considerable. You know, before he used supercomputing to process that picture, it took him one night and one morning. ??Although the single imaging area of ??ocean monitoring satellites will not be as high as the terrifying millions of square kilometers like Ziyu-201, it will still be a huge burden for the satellite-based computers with poor performance. After organizing the language, Chang Haonan raised his concerns to Luan Wenjie: Director Luan, as you saw when we were at the Tanzhou Measurement and Control Station last time, the calculations of the data extraction and dimensionality reduction process are quite complex, and there is also a considerable black box part of it. As far as I know, the performance of computers mounted on satellites may be worse than ordinary commercial machines due to energy consumption and radiation protection issues? Lan Wenjie also decisively recognized Chang Haonans statement: Indeed, the performance of spaceborne computers cannot be improved in a short period of time, at least it cannot be compared with supercomputers on the ground. ?However, immediately afterwards, he changed the subject: So our Haiyang-1A satellite is still focused on technical verification. As long as part of it can be processed on the satellite side to ensure that the timeliness is improved compared to the resource series satellites, we do not deliberately pursue specific indicator data. With these words, Chang Haonan felt relieved. ?After all, he didnt cross many boundaries in his previous life. His understanding of the aerospace field was basically limited to the public part and a small amount of information obtained through communication with peers. He was not able to figure out the specific development level of a certain technology like his old profession. However, the general trend of improving satellite computing capabilities and reducing the pressure on ground stations as much as possible is definitely correct. Otherwise, no matter how fast the data processing speed of the ground station is, it will have to go through one or even multiple data transmission processes between it and the terminals that really need to use remote sensing information, such as ocean strike formations or scientific expedition units. It is difficult to achieve real-time or quasi-real-time reconnaissance. Thats no problem. Chang Haonan nodded: But I will probably spend most of my time in Shengjing in the next two or three months, and I wont be able to participate in your project until December at the end of this year at the earliest. Is the Taihang project about to be finalized? Ding Gaoheng, who was behind the desk, suddenly stepped in and asked. After the establishment of the General Armament Department and the group restructuring of the five major military industry corporations, the administrative approval authority for the design finalization process was gradually transferred from the Science and Technology Commission to the former. ? Anyone with a discerning eye can see that with the development of the national economy, especially the significant driving role it has brought to the machinery industry after the establishment of the Equipment Industry Department, the country is considering gradually removing the militarization of the Commission of Science, Technology and Industry for National Defense. ?For example, Zhang Hongbiao, the newly transferred deputy director, and Luan Wenjie, who is rumored to be promoted to deputy director soon, both have no military status. Yes, it is expected that the national appraisal will start at the end of September and the design will be finalized before the end of the year. Chang Haonan replied. ?Although the entire research and development process of the Turbofan 10 went smoothly, the national appraisal process for design finalization is quite detailed and standardized, and there will not be any fewer projects just because you have a smooth journey ahead. Even if all subjects are passed at once, it will take about two months. ??And it''s good luck that it comes just as winter is about to begin. Otherwise, it would not be unusual for the appraisal to take more than half a year or even more than a year in order to wait for extremely cold temperature conditions. It doesnt matter. ?After the conversation between Ding Gaoheng and Chang Haonan came to an end, Luan Wenjie waved his hand: "Ocean monitoring...well, the equipment requirements of marine science satellites and land remote sensing satellites are different, so we are still doing the final research on the hardware level. The integration with the software program will not start until the end of the year. You can still make your own arrangements. Lord. Besides, your core algorithm should be ready-made and should only need to be optimized..." After the topic of Ocean One ended, Luan Wenjie stood up and prepared to say goodbye to Ding Gaoheng: Director Na Ding, my affairs are finished. You and Comrade Haonan... Wait a minute, wait a minute ?Chang Haonan quickly stopped the other party: "Director Luan has finished talking to me about what happened, but I haven''t talked about what Director Luan is looking for yet." ??He was brought into the other party''s topic as soon as he entered the door, but he had not yet finished the business he had come here to do. How could Luan Wenjie be allowed to run away like this? Luan Wenjie, who had already picked up his briefcase, sat back down again. It seems like you two are quite destined... Ding Gaoheng half-jokingly looked at the two people on the sofa and said: You come to my place on the same day, and you still have to find the other person to do things? Its really a coincidence. Luan Wenjie looked at Chang Haonan: I dont know if Mr. Chang is looking for me because he wants to... Thats right, I have a project here, and I hope to use space breeding to obtain some beneficial crop traits. It happens that the Shenzhou 2 mission will be launched early next year, so... can you arrange a position in the mission payload? The latter is also straight to the point. ??They are all working on serious projects, so there is nothing to be embarrassed about. Space breeding ?At this time, not only Luan Wenjie, but also Ding Gaoheng''s face showed a bit of surprise: "Isn''t this research in the field of agriculture... Xiao Chang, are you still studying this secretly?" Its definitely not me. I dont know the difference between grains and grains when it comes to agriculture. Anyway, its not much different. ?Chang Haonan made a small joke, and then continued to explain: Actually, this matter is also related to the Ziyu-2 remote sensing satellite that Director Luan just mentioned. Hearing this, Luan Wenjie and Ding Gaoheng instantly became interested. "Didn''t I specially process several photos taken by the Ziyu-201 star in the central and western regions of my country? From them, I discovered about 80 abnormal information data that had not been observed before, and then based on the recent geological From the exploration results, we found that desert terrain that meets certain characteristics has the potential to be improved into soil..." Chang Haonan spent a few minutes briefly introducing his plan to turn sand into soil. Of course, the specific technical part has been removed. After all, he couldn''t take out a small blackboard to teach the other two people here. In short, according to the suggestion of Professor He Guangyou, who has extensive experience in desert control in the past, after completing the soil transformation, it is best to plant some plants such as tall fescue and cosmos to stabilize the soil matrix, and then use soybeans, alfalfa, Ryegrass nourishes the soil. Researcher Zhuang Bingchangzhuang, who happens to be participating in our project, is an expert in soybean breeding, and he wanted this opportunity. Zhuang Bingchang ?Seeing that Ding Gaoheng had no intention of making a final decision, Luan Wenjie raised his head slightly and made a reminiscence gesture: "I seem to have an impression of this name. He seemed to have submitted an application during the Shenzhou-1 mission. However, at that time we considered that soybean seeds were relatively large in size and weight, so under the same conditions, the priority was lower. I guess I couldnt choose Then he looked at Chang Haonan: However, since this is the situation that Mr. Chang said now, it meets the conditions that may promote key projects. It is definitely no problem to increase the priority. "Of course, in principle, this matter still needs to be communicated with the chief engineer team responsible for specific tasks, but I will just coordinate. You can just ask Researcher Zhuang to submit another supplementary explanation document to us..." It was even smoother than Chang Haonan had imagined before. Until the two of them finished communicating about this matter, Ding Gaoheng, who had been silent just now, suddenly spoke: Xiao Chang, as the subject of your technology of turning sand into earth, I mean the subject before the transformation, doesnt it have to be sand? ?This somewhat awkward question made Chang Haonan think about it briefly: I havent counted the others, but in theory, as long as some basic conditions are met, such as certain binding and shear resistance, and the climate and water and fertilizer conditions are not too bad, there will be corresponding improvement methods. "Well" Ding Gaoheng lowered his head and thought, but did not continue to speak. "Director Ding, what do you mean..." After a short period of silence, Chang Haonan asked tentatively. Oh, just some unconventional ideas. Ding Gaoheng then raised his head again: I was wondering if, after a few decades or hundreds of years, we land on an extraterrestrial planet, would it be possible to use your technology to farm on extraterrestrial planets (End of this chapter) Chapter 866 Installation targets of domestic large bypass ratio turbofans Chapter 866 Installation Targets of Domestic Large Bypass Ratio Turbofans ?This time, both Chang Haonan and Luan Wenjie were stunned by Ding Gaoheng''s wild ideas. I can only say that he is a veteran who has participated in the research and development of two bombs and one satellite. He is really good at long-term planning. ?When Chang Haonan was first reborn and obtained the system, he did consider things like space exploration, but his idea at that time was nothing more than landing on the moon and Mars, or establishing an outer space orbital space station. ?Even later, we even thought about conducting deep space exploration, and after finding a planet where we could land, we would then use technologies such as quantum teleportation to transport equipment, materials, and even living things to the past. ??However, farming in outer space is a somewhat simple idea in science fiction... It is true that it has never happened. Not very good. "The new generation of medium-sized transport aircraft can also use two high-thrust turbofans instead of four turboprops to achieve a maximum takeoff weight of 80-90 tons and a payload of about 25 tons. This will make the maintenance easier and the flight comfort better. " During the meeting at the Institute of Geology and Geophysics that day, before he proposed the idea of ??turning sand into soil, the one that actually attracted most people''s attention first was the idea of ??modifying desert sand and then partially replacing river sand for use in Building materials ideas. Ding Gaoheng adjusted his sitting posture slightly and assumed a posture of listening attentively. It is obviously more realistic to modify the covering on the surface of the moon or Mars to make it capable of being used as building materials than to grow food and vegetables in those places. ??But after all, Chang Haonan is no longer a member of the Aviation Industry Group, and it is difficult for him to directly direct the work of his brother units. Chang Haonan shook his head: But there are still some things related to the aviation development groups business. I originally planned to report to you at the end of the year, but Im here today... After a short pause, he continued: In fact, the clarity of images observed by near-Earth space instruments such as the Hubble Telescope is generally quite poor, and there is only a single optical channel, which is simply not enough to provide data for in-depth analysis. But after 2010, it will basically become the preferred object of all countries around the world. ?Chang Haonan thought seriously for a while, and then said: While Luan Wenjie finished speaking, Chang Haonan intervened in time: I remember Director Luan mentioned in a previous meeting that the space agency is planning to carry out a lunar exploration project? ? To reduce the dimensionality of high-dimensional data, you must first have high-dimensional data. The latter immediately started making tea. But having said that, maybe some moss or fungi and the like are not without possibility of survival? So, this is for my own project. Furthermore, mainline passenger aircraft also involve airworthiness certification issues. "The possibility is very small. Although there are indeed some anaerobic plants or microorganisms, they cannot survive under any circumstances. For example, the oxygen content in the Martian atmosphere is less than 1% and carbon dioxide is more than 98%. Even if it is really like It is currently widely speculated that there is a certain amount of liquid water, but the environment is still too bad anyway. It would be better to have an Earth-like planet..." Like the three new models you mentioned last year when the Aerospace Power Group was established? "Xiao Chang, are you here just for space breeding?" Ding Gaoheng took the tea cup from Chang Haonan and asked with a smile. ?Although extraterrestrial exploration is more realistic than landing on extraterrestrial planets, it must first be able to go to deep space. Especially for the international aviation market, China is still a new player. Anyway, when our large bypass ratio turbofan is developed, C909 should also be domestically produced. After watching Luan Wenjie leave the office, Ding Gaoheng himself left the office chair and sat on the sofa next to Chang Haonan. It does not mean that aviation development development should be disconnected from aircraft models. Luan Wenjie, who was next to him, actually shook his head and said matter-of-factly: Having said all that, no matter what we plan to do, we still have to go to outer space first. ?This time, Ding Gaoheng understood clearly ??The conversation continued for about twenty minutes, until Luan Wenjie raised his wrist to look at the time and said that he had a meeting to hold later, and the conversation ended. but. The C909 was designed to adapt to the PS90A, which has a relatively small diameter. Changing to a larger size aircraft engine will cause safety risks. ?Chang Haonan did not speak, but just listened to Luan Wenjies first thoughts, and then entered into his own thinking Yes, you remember correctly. Listening to Chang Haonan''s answer, Ding Gaoheng gradually became happy. Exploration, sampling, analysis. At this moment, China is still working hard to achieve the first manned space flight. Let alone extraterrestrial planets, even the lunar exploration project has not been officially approved. It is indeed a bit early to consider what will happen after landing on extraterrestrial planets. . But now, its completely different. ?So this topic comes to an end. Hissit seems to be the same ?After coughing twice, Chang Haonan and Luan Wenjies attention was finally attracted again: Actually, I just thought about it casually, you dont need to take it so seriously Its just that this time Chang Haonan talked to Ding Gaoheng. Although the matter of space farming is still relatively far away, Ding Gaohengs imagination just now has brought a lot of inspiration. In short, military aircraft have less worries. Those beautiful alien photos that people usually see on the Internet or in books and magazines are actually a lot of secondary renderings. On the one hand, it is for self-use, and it can also compete with the alternatives of An-12 and C130 in the international market. On the other hand, it can also accumulate some experience for the research and development of future 80-ton mainline passenger aircraft. The Netherlands, Hungary, Portugal, South Korea, and even the US Air Force are all very fond of this model. "At this moment, the design of the Turbofan 10 is about to be finalized. Although there will still be production and finalization tasks in the future, the manpower required is much less than now, especially when other factories are sent to Shengjing to participate in the Turbofan 10 The comrades on the project will be able to return to their original units before the Spring Festival next year at the latest, so that they can take on some new projects..." In the past, his biggest headache was hearing about new projects related to aviation development. After a brief silence, Luan Wenjie broke the silence first: Compared to transforming alien planets, the technology developed by Mr. Chang seems to be more suitable for exploring alien planets. At least it allows us to obtain more detailed surface information of the target from a relatively long distance... So the intention of our superiors is to wait until our automatic control soft landing technology has passed more tests before officially launching the lunar exploration project..." And I heard that the project application process is already underway. Chang Haonan didn''t know much about aerospace in his previous life, so he specifically brought the topic in this direction. Sure enough, he heard a lot of things from Ding Gaoheng and Luan Wenjie that he didn''t know much about before. He nodded first: Ahem ?For example, the KC390 developed by Embraer has almost become the first choice among aircraft of the same class in the 2020s. "The first naval gas turbine, which I have contacted with Institute 701 before, is prepared for future domestically produced main surface ships. The third turboshaft engine... We still have relatively few technical reserves in the turboshaft aspect. In addition, there are not many people sent by Southern Dynamics, and their capabilities are relatively weak, but they are not that fast. " Ding Gaoheng asked: I remember that there seems to be a high-power aeroderivative gas turbine, a large bypass ratio turbofan engine, and a... 1600kw-class turboshaft? "In the long run, we will definitely design a new passenger aircraft of the same level as the Airbus A320 or Boeing 737 from scratch. However, Hufei''s research and development capabilities are currently relatively average, and almost all of its efforts are used in the localization of the two models. Above, I am afraid there will be no extra energy in a short period of time, and the new passenger aircraft is equipped with a new engine, which may inevitably cause concerns for the airlines. " "Technically speaking, launching a satellite to orbit the moon, including achieving a hard landing on the moon, is basically not difficult for us. What is more challenging is the soft landing, and later the return to the earth. Once an engine is built, it must be installed on an airplane to be considered a real success. And if you want to verify the feasibility of this road, the first step you have to do is actually no different from what it is on earth. The aviation field is different from most other fields. The requirements for reliability, maintenance hours, and safety of civilian aircraft are much more stringent than those of military aircraft. ??The two sang and coordinated so seamlessly that it actually made Ding Gaoheng, who first proposed the idea, a little helpless: ?This idea of ??using twin turbofans to replace four turboprops would have been relatively rare in 2000. So I thought it would be better to let this model stand the test on military aircraft for a period of time. Chang Haonan frowned slightly: Its already an Earth-like planet, so theres a high probability that it already has soil similar to the Earths, so why bother transforming it Actually, what I really want to say Ding Gaoheng thought: But strategic transport aircraft like the IL-76 or C17 may not be available in the short term..." Thats what happened. You can make it smaller. ? And Luan Wenjie had said so much in meetings that he usually held, how could he remember such details? He only thought that he had mentioned it during an internal meeting. Cant it be directly replaced with C909? In fact, he had never heard of it at all. He only vaguely remembered that the lunar exploration project in the previous life was probably established in the past few years. So actually... ?Of course, Chang Haonan himself has no idea of ????strengthening his career in the construction industry for the time being. Mainly for breeding purposes. Military aircraft that use large bypass ratio turbofans...basically only military transport aircraft. Comrade Wenjie and Comrade Ye Jianpei, the chief engineer of the Ziyu-2 satellite, have reported to the higher authorities twice through me. "Like Mars, the situation is relatively stable, and the main surface is sand and gravel. It can''t be said that there is no hope at all... But for some planets with harsh environments, even solid or gaseous... then there is definitely no hope, and there are also involved Plants cannot grow without soil, they also need water and oxygen..." In other words, a return detector must be launched. Chang Haonan affirmed: ?However, Chang Haonan just thought of something else. So the latter answered directly: This is just the second project. The large bypass ratio turbofan... still needs to find a suitable installation target. But if we promote it... Ding Gaoheng asked: ?Chang Haonan said the plan he had thought of for a long time: Our level of structural design and aviation materials is not yet sufficient to support the development of a 200-ton transport aircraft, but those using turbofans do not necessarily have to be heavy-duty transport aircraft. Although Huaxia''s products are unlikely to be sold in the United States, other markets can still compete. But since the leader asked specifically, Chang Haonan definitely couldn''t answer so straightforwardly. The aero-engine project was established independently of the aircraft model, but it just got rid of its past vassal status. In short, these can only be regarded as reserved ideas. Indeed. That depends on the specific conditions of the outer planet. ?He just said it casually at first, but later he actually analyzed it logically. ?Although the few people just talked about a lot, the ocean surveillance satellites and lunar exploration were purely coincidences caused by Luan Wenjie''s presence here. After all, even Rafales engines use Chinese technology. ?The sensitivity of transport aircraft is still much lower than that of main battle equipment... (End of this chapter) Chapter 867 Just call it Turbofan 20! Chapter 867, lets call it Turbofan 20! 80 tons...is it still slightly larger than the Y8? Ding Gaoheng did not answer immediately, but thought for a moment, and then asked Chang Haonan. The latter nodded: Yes, the latest improved version of the Y8 is the Y8F400. The maximum take-off weight is about 65 tons, and the load capacity in the ultimate state can reach 20 tons. However, this is only a paper performance, and it will not actually take off like this. Chang Haonan has previously participated in the improvement work of Yun8s third-category platform, so he is naturally quite clear about these indicators. After a short pause, he continued to add: "If the new medium-sized transport aircraft uses two large bypass ratio turbofan engines as power, it will definitely be larger than the Y-8 and C130 at 80 tons. This is still considering that military transport aircraft require excessive structural redundancy, and it is also There is a demand for short take-off and landing on poor-quality runways, otherwise according to the standards of civil aircraft, a push of about 100 tons is more than enough. " After all, the core machine of the Turbofan 10 is the foundation of the 4th generation. Even if it is currently in a low-calibration residual state due to process and material problems, the final thrust indicator cannot be weaker than the PS90A, and the fuel consumption and lifespan are not to mention. mentioned. ?Two PS90As can propel the 100-ton Tu 214/C909, and the two new engines are obviously no problem. I mean, you just said that the market targeted by the new model is users who want to eliminate the old C130 and An12. Will this be inconsistent with their positioning needs? Ding Gaoheng expressed his concerns. In other words, it is the concerns of other people during the project decision-making process. Because he took out a notebook from the drawer at the same time and wrote down some of the key points that Chang Haonan just said Although the People''s Liberation Army Aviation itself also has a need to replace medium-sized transport aircraft, it is obviously not urgent as it already has nearly twenty IL-76s of various models on hand and there are still more than a dozen IL-76MF orders to be delivered. . At least the replacement priority cannot be higher than that of the J-11B and J-10A. So it is best to achieve quick return on investment through exporting. In the export of large aircraft, China actually has little decent experience. Although several export orders for Y8F400 have been signed in recent years, the total transaction volume is only single digits. ??In this kind of arms sales to third world countries, the profit on a single product is not much. ?Every single or two business is really a huge profit. ?Of course, the improved version of Yun 8 is a short-term, fast and low-cost project. If you make money, you will make money. But new models require research and development funds. ??Although using the reputation Chang Haonan has accumulated over the years, and of course the value created, it is not difficult to directly help a project get off the ground. But its best to be able to convince people with reason. In this regard, Chang Haonan certainly has no problem. So he immediately explained: "A pure tactical transport aircraft like the C130 has a very single position in the equipment sequence and must be used in conjunction with larger strategic transport aircraft. In the United States, it used to be the C141 and later the C17. The Soviets even directly canceled the An-12 The upgrade plan is to use the Il-76 as a general transport aircraft and pair it with the larger An-22 to perform airlift missions..." "But this is a method that only big countries, or at least regional powers, can afford. Now that the Cold War is over, most countries have begun to relax their investment in military affairs, and they cannot afford to serve such a complex system, so for small and medium-sized countries , in fact, we need less professional models with more complete functions. "Our new transport aircraft can directly refer to the fuselage cross-section of the IL-76, maintaining or slightly reducing the width, mainly reducing the length and wingspan. In this way, although the volume is only 20 tons larger than the C130, it can actually carry cargo The volume is much larger. For small and medium-sized countries, one model covers all needs, and for us, it can also be used as a light transport aircraft in a combination of light, medium and heavy. " You can even consider arranging the hardware system required for aerial refueling on the outside of the wing during design. As long as the oil tank is installed in the cabin, it can assume part of the functions of an aerial tanker..." ?Chang Haonans idea is actually to use one machine for multiple purposes. ? It is hard for people who were here at the turn of the century, especially after 1996, when the Chinese began to bear external military pressure again, to imagine how exaggerated the level of armaments in countries around the world has become after entering the 21st century. After all, during the Cold War, the goal of many armies was to make citizens think they were protected. ?Now that there is no threat from the Warsaw Pact, even without an army, the citizens can think that they are protected. Therefore, not to mention small countries in the literal sense, even some countries that could be called "great powers" in the past, the military can still take care of themselves. What are the strategic transportation needs? It may not be something you can catch up with every few years. When the time comes, go rent some strategic transport aircraft. ?There are quite a few countries with this kind of mentality... After hearing Chang Haonans complete plan, Ding Gaoheng did not hesitate for too long and answered: No one can say anything about equipment research and development, so whether the project is approved or not depends on the judgment of the aviation industry and the approval of superiors. Of course, from my personal point of view, your idea should be feasible... Actually, being able to express your stance to this point is actually an agreement. As a technical person and a leader, it is naturally impossible to speak too fully. Then Ill trouble you, Director Ding ?Chang Haonan also breathed a sigh of relief. After the design of Turbofan 10 was finalized, the three new models were, after all, the first batch of independent projects after the establishment of the Aerospace Power Group. Although from the perspective of a reborn person, there will definitely be a huge market in the future. But it is always safer to find your next home in advance. Otherwise, it would be embarrassing if his research and development progress is too fast and the engine has been finalized but no suitable installation project has been found. By the way, Xiao Chang. Ding Gaoheng said as he closed the notebook that had filled most of the page: What are you going to call this new model of engine? The official equipment model names are actually given by the military. Sometimes manufacturers have another naming system. ?For example, J-5 is Dongfeng 101, J-6 is Dongfeng 102... But later, domestic R&D work was in a state of chaos for a long time, and this set of rules was gradually abandoned. As it is developed in accordance with the requirements of the military, it is basically just called the model name directly. In turn, the military sometimes refers to the manufacturer''s name. Turbofan 20 Chang Haonan almost didnt think about it before he put the name on it. "The turbofan 11 is the power to copy the GJ8, the turbofan 12 is a model that was discontinued in the 1980s, the turbofan 13 is a core machine model proposed by Liyang in 1997, and the number 14 has been used by the turbojet 14 , and it is also considered a new model, so skip over and leave the turbofan 15 for the real fourth-generation engine..." Instead of continuing to line up one after another, this large bypass ratio turbofan is a brand new beginning for our country, so it is better to get it right in one step and jump directly to Turbofan 20..." Although the situation is similar to that of Turbofan 10, whether it is Turbofan 15 or Turbofan 20, they have almost no technical relationship with the previous model of the same name. But once you get used to this, its still hard to change. In this regard, Ding Gaoheng, who has no baggage, naturally follows the good path. Then, the two continued to chat about other things related to Turbofan 20. After about half an hour, Chang Haonan was ready to get up and leave. ?However, just when he was about to find a chance to say goodbye, he suddenly remembered something. Speaking of which, Director Ding, when will the first commercial route operation of C808 be scheduled? Chang Haonan asked: It seems that I havent received the invitation from Hufei yet. He had made an agreement with Li Yabo before, letting the latter strive for the opportunity to participate in the maiden flight of C808. But the latter was distracted by him halfway to study carbon fiber laser processing and prepare to publish nature. This research cycle is relatively long. So, he, the mentor, still had to make up for the missing piece. Hearing Chang Haonan''s question, Ding Gaoheng was stunned for a moment, and then realized that Chang Haonan, as the leader of the Aviation Power Group, had indeed not received the situation report from Hufei. Thats right, it was originally planned for November, but now it may be postponed to March or April next year. Ding Gaoheng replied. "ha?" ?Chang Haonan was stunned. To be honest, he hasnt encountered a project delay for a long time... ?Especially for C808, even the evidence collection has been completed, so the follow-up process should be smooth. ?But soon, Ding Gaohengs further explanation made Chang Haonan change from surprise to joy: "Ermao''s Ivchenko and Motorsic had some troubles in the delivery of some parts, which caused the engines on the mass-produced machines to not come off the production line. Now the Ufa Engine Industrial Complex and the Moscow Salyut Factory We are looking for ways to fill this gap..." That would be great ?This was originally part of Chang Haonan''s plan, so his expression at this time was probably similar to Jim Hacker''s when he just heard that the former prime minister died of a heart attack. After recalling almost all the pain he had experienced in his two lives, he barely suppressed his smile: Thats a shame. "According to the contract, they may have to pay us a large amount of liquidated damages..." (End of this chapter) Chapter 868 global nuclear balance Chapter 868 Global Nuclear Balance ?After leaving the Commission of Science, Technology and Industry for National Defense, Chang Haonan quickly contacted Wu Yifan. I learned that the latter is in the country. ?So, I asked the other party to meet out the next day. ?The location is naturally in the private room on the second floor of the Torch Group canteen. Compared to a few months ago, Lao Wu has become a lot better. ?But the price is that the passive skill of seamlessly camouflaging the Buryat people is no longer available. Brother Nan, what a coincidence. I was planning to ask you out in the next two days. After meeting, Wu Yifan said first. "In a hurry?" Chang Haonan, who had just picked up the chopsticks, stopped for a moment. Its not an urgent matter, otherwise I wouldnt have waited to meet you to talk about it. ??Wu Yifan picked up the teapot and poured a glass of water for each of them, while replying: What I heard last month was that the denuclearization steps in Ermao were suddenly suspended. "ah?" Chang Haonans pupils shrank slightly in shock: Er Mao dares to do this? ?This is really important. A huge problem caused by the disintegration of the Soviet Union was the huge number of nuclear weapons scattered in the territories of the former republics and the loss of unified custody. It is not only troublesome for other countries, but also for the CIS countries themselves except Russia - Since control of nuclear bombs remains in Moscows hands, the nuclear weapons they have are essentially bludgeons. Can neither be fired nor detonated. But it cant really be treated like a mallet. ??No one can suffer if it is leaked due to improper storage, or if it is stolen and the warhead is dismantled and the entire dirty bomb is taken out. So most countries got rid of these hot potatoes as quickly as possible soon after independence. But one country has a special situation. It is Ermao. There are too many nuclear bombs deployed on its soil. So that in 1992, it was the third largest nuclear arsenal after the United States and Russia. Far more than the sum of the following three constants. ?Furthermore, Ermao itself is a country with certain scientific research capabilities, and no one can guarantee that it will not be able to unlock nuclear weapons. Therefore, in 1994, the five permanent members specially formulated a Security Council Resolution 984: ??If a nuclear-armed country gives up its nuclear weapons and returns to its status as a non-nuclear country, the permanent members of the Security Council will jointly guarantee not to use nuclear weapons against that country. ?Then, the "reassured" Kiev regime began to gradually destroy and transfer its nuclear arsenal under the joint supervision of the United States and Russia. In the original timeline, this process probably lasted until the beginning of the 21st century, when the last silo deploying RT23 intercontinental missiles in Ermao was dismantled. But I havent heard of any duplication in the process... Its not Ermao. Ermao is eager to get rid of these things quickly. After hearing Chang Haonans doubts, Wu Yifan shook the chopsticks in his hand: Didnt I tell you when we last met that there were some conflicts between the United States and Russia on the nuclear issue because of the Allied Forces Operation? ?Chang Haonan nodded, indicating that he knew. This is also the basis for his layout using the D436 engine First send Lao Wu to poach key technical personnel from the Ivchenko Design Bureau and Motorsic Factory. It is not necessary to dig into China. ?As long as you are not in Ermao, you can go anywhere. The main reason is that they are unable to supply engine parts as scheduled, resulting in a large amount of liquidated damages. These two companies are on the verge of life and death, and they cannot afford liquidated damages. According to the contract, in this case, Ermao Official, as the guarantor of this transaction, will bear the liability for compensation. But even to buy natural gas for 20 cents, he had to borrow money from a big hair, and obviously he couldn''t afford to lose it. ?Then the only option is to take the path of compensation in kind. Chang Haonan actually had this idea a long time ago. Its just that it was just an idea before. After all, the Tu-160, as the largest strategic bomber with the longest range in the world, is not just a simple weapon.????It is also part of the global nuclear balance. Even though the Cold War era has passed, any nuclear-related issue is still highly sensitive. It was not until the end of the Allied Forces operation that some conflicts arose between several countries that had a tacit understanding on the Ermao nuclear issue. In addition, China itself is one of the five good people who legally possess nuclear weapons, which made this matter at least theoretically possible. possible. but That is, it is theoretically possible. Even Chang Haonan himself has to admit it. Not completely sure. 50/50 success or failure is a relatively optimistic judgment. But from what Lao Wu said, it seems that the situation has changed again? After lowering his head and taking a sip of soup, Wu Yifan explained: In the beginning, this contradiction was just that the Americans put pressure on Ermao to destroy all nuclear vehicles, and they could not hand it over to the Russians in the name of debt repayment. As for the debt, the Americans can help pay it off. Actually, this change only involves about 6-8 Tu-160 bombers and about 20 rail-mobile intercontinental missiles. Other vehicles are still being destroyed as usual. But later, the two sides seemed to be increasingly noisy, causing the entire denuclearization work to be suspended, or at least greatly slowed down..." After listening to the whole process, Chang Haonan didn''t know what to say for a while. Although it has been just over a year since he changed the outcome of the Allied operations, the impact has already been felt far beyond the Balkans. Since the 1990s, the U.S. militarys prestige as a soldier from heaven has been its core capability in implementing its national strategy. But there is another side to the role of this attribute. God cannot bleed. ?The U.S. military chose to stop its losses and retreat with this in mind, fearing that it would repeat the mistakes of the "Talking Tree" if it continued to fight. At any rate, a tie was maintained between the two sides. But obviously, if you have a tie between a superpower and a small country, there will already be a big problem in itself. Once the idea of ??"Heavenly soldiers are just that" arises, it will be difficult to completely eliminate it from other people''s minds unless they perform another plowing and sweeping of caves... Overall, this should be good news. But once nuclear-related issues unfold, either nothing will happen, or something big will happen... In short, the scalp is numb. Lets take it one step at a time ?Chang Haonan sighed, and then solemnly asked: You should pay more attention to the information related to this matter, but do not take any substantive action unless you receive a domestic request. Old Wu quickly nodded obediently: Of course I know this, but Im not bold enough to touch on anything related to nuclear weapons After finishing speaking, he paused for a moment, and then he probably wanted to change the topic to a lighter topic, so he asked again: Speaking of which, Brother Nan, I remember you told me before that after Ermao breaks the contract on the delivery of the D436 engine, you will need to buy some more stuff from them. Now that they have basically lost the ability to execute the contract, what are you going to do specifically? ?However, Lao Wu didn''t know that the new topic he just changed was actually the same thing as before - ?Chang Haonan has not fully mentioned the idea of ??"bringing back a few Tu-160s" to anyone. ??It was just a side-note made by Ding Gaoheng to the superior unit many years ago. The result... is naturally what I want. Otherwise, we would not have sent a delegation to inspect the condition of those aircraft in 1995. ?However, it is not the time to say it yet. So, Chang Haonan took a deep breath: I havent thought about it yet. According to the contract, liquidated damages will only be incurred if the delivery is delayed for more than half a year. The longer the time, the greater the amount, so... lets wait until next year... Actually, he was waiting for an opportunity. An opportunity to cooperate with Mao and take advantage of the Americans. According to the original timeline, in more than a year, the US military will rush into the imperial cemetery without looking back. That process requires the two countries to open their airspace as a logistics transportation route. But todays historical process has changed beyond recognition, and Chang Haonan cannot guarantee 100% that these things will happen as they are. You can only take one step at a time. (End of this chapter) Chapter 869 Beast mounted J-11B Chapter 869 The Beast Mounts J-11B Forget it Lets not talk about Er Maos matter for now. Chang Haonan waved his hands and decided not to think about the things he couldn''t change for the time being, but to change the topic in a real sense: When we met before, I told you that if there was a chance, we could try to build a transportation line to the Levant region on the east coast of the Mediterranean. Are there any plans for this? "Um" ?Wu Yifan lowered his head and played with the tea cup in his hand. After pondering for a moment, he replied: I cant say. ?Chang Haonan did not speak, but looked at the other party with questioning eyes What does this hard to say mean? In the past few months, I have already figured out a route. From the South Caucasus, usually Sukhumi in Abkhazia, I fly directly to Syria in the name of cargo. In this way, I only need to clear the relationship between the two ends. Lao Wu replied: "As a result, in the past few months, the situation in Damascus has been more complicated, and the relationships I had established before were all in disarray...especially the group of people responsible for entry and exit approval procedures, who have been replaced from top to bottom. Thanks to my vigilance, Im very sexy. Last month I took a trip with completely legal cargo, but someone almost turned the cargo hold upside down..." Chang Haonan roughly recalled that the summer and autumn of 2000 should have happened to be the transition period when Hafez died but Bashar had not yet fully taken over. Chaos is normal. The latter learned a lot of Western things when he was young. At this time, he was still in a relatively imaginative stage, so many of his policies after coming to power were quite different from his father''s. It can be handed over smoothly without fighting, which is already very good. Its right to be more vigilant. Chang Haonan nodded: Things will be smooth when things go slowly, and people will be safe when they are slow. This matter is originally a long-term plan, and it is relatively sensitive. We must ensure the safety of the route to the greatest extent. Of course Lao Wu understands this, but the feeling of missing the mark but falling short is still very bad: "The main problem now is that the border between the three countries of Iraq, Syria and Turkey is a large mountainous area, which should have been an ideal smuggling channel, but neither Baghdad, Ankara nor Damascus can control this place. There are many Kurdish armed forces in the mountains. I have inquired through many lines, but I cant find a reliable way. Even the American officer I know told me that the supplies they sent to a group of Kurdish armed forces were robbed by another group on the way..." Listening to the other party''s complaints, Chang Haonan also showed a helpless expression. ?This kind of force that is still in a tribal nature, if they can''t find a person with enough prestige within them, then there is no hope for outsiders. ?Especially, the Ku people themselves are not yet a nation in the traditional concept, but are closer to a group of people with complex origins and similar living customs. That would be even more troublesome. Would it be better to avoid that place or avoid it He had no choice but to suggest: Either you can see if you can take the Caspian Sea and the passage left by the ancient Silk Road, or if you have contact with the EU now, you can try taking the Mediterranean sea shipping, but the latter one may be too difficult for Europeans to do. The Lion speaks loudly." ?Smuggling under the cover of "humanitarian relief supplies" is a traditional European art, but compared to Eastern Europe and the Middle East, which can fool people with just a few dollars or even supplies, Old Europe''s appetite is much greater. ??Although Chang Haonan''s support for Wu Yifan''s becoming an official was not for profit, the latter still wanted to make money by taking risks to do such things. Lets take a closer look at the situation after I return to Ermao After speaking, Wu Yifan picked up the cup and drank the wine in one gulp. ?After meeting Wu Yifan, Chang Haonan stayed in the capital for about a week in order to wait for Zhuang Bingchang to arrive. ?Mainly emphasizing to the latter that this project involves many participants, and except for the experimental field in Mongolia Province, others such as Beihang University, China National Space Administration, and Institute of Geology and Geophysics are basically all in Beijing. So firstly, try not to make any job transfers before the project is completed, and secondly, after the research officially starts, you may have to stay in the capital. The latter was just regarded as a normal work requirement, so I agreed without much thought. It can be regarded as resolving a piece of Chang Haonans heartache ? ?His experience since his rebirth has shown that there is no fatalism in this worldview, that is, multiple routes will lead to the same result as in the previous life. So as long as Zhuang Bingchang can be kept in the capital, there is a high probability that there is no need to worry about his safety. ?Of course, in the final analysis, this is a temporary solution rather than a permanent solution. He can manage one Zhuang Bingchang, but not a hundred or a thousand. In the final analysis, we still need to improve the overall public security level... With these thoughts in mind, Chang Haonan put Zhuang Bingchang on the plane back to Ji Province, turned around and flew to Shengjing himself. Although the aviation power and aviation industries are now separated at the project level, after all, whether the aviation engine leaves the aircraft or the aircraft does not have the aviation engine, it will not reach the sky. The business relationship between the two parties is still quite close. What''s more, when the Turbofan 10 project was established, it was still the period of the head office, which resulted in a considerable number of project team members now working in the Aviation Industry Group, especially the 112 Factory and 601 Research Institute, which are responsible for the development of the J-11WS demonstrator platform. Therefore, although it was the design finalization appraisal of Turbofan 10, the launching ceremony was held at Factory 112. Chang Haonan, as the chief engineer and representative of the Aerospace Power Group, personally announced on the stage that the national appraisal process has officially begun. The background is the two J-11WS parked head-to-head. ?In the next few months, they, as well as another trial production batch of J-11B mass-produced aircraft, will fly all over China with the appraisal team of the Air Force and the General Armament Department. Three aircraft and six engines are operated at the same time in order to increase efficiency as much as possible. Otherwise, the extreme weather test alone would probably take half a year. As for why there are only two airplanes in the background ?After Chang Haonan announced the start, the last step of the launch ceremony was the flight performance of the J-11B with the production batch number 00-01. ??Moreover, its not just an ordinary flight show ??As the sharp roar of the engine sounded, the crowd on the tarmac that was originally watching Chang Haonan turned around At the end of the runway in the distance, a fighter jet painted in air force gray appeared at some point, slowly accelerating and preparing to take off. ??For most people who have never seen the J-11B take off after being replaced with a turbofan 10A, this scene does not seem to be unusual. But Chang Haonan could see that the acceleration of the plane was a bit low. Even lower than the original Su-27SK. ?This is obviously not normal. Sure enough, an aircraft that normally only needs less than one-fifth of the length of the runway to take off slowly used up nearly half of the runway length before slowly raising its head. And the movement is very gentle. It''s okay for pilots flying passenger planes to fly like this, but few fighter pilots have this style. but ??As the plane gradually got closer, the crowd watching also let out bursts of exclamations From the angle of the ceremony venue, it can be clearly seen that the wings and bottom of the fuselage of this J-11B have almost been filled with all kinds of ammunition! Quite a few of them, even the air force members in the crowd have not seen them completely. "I go" Chang Haonan put his hand above his eyebrows and looked at the J-11B that was climbing in the distance with a look of shock. He can naturally recognize all ammunition models. On the wingtips and the two outermost pylons of the wing are four PL8 short-range air-to-air bombs. ? ?The two pylons slightly inside are hung with 4 Pili 12 air-to-air bombs that have not yet been formally finalized in the form of double pylons. At the innermost side of the wing and in the center of the belly are four huge KAB1500KR TV-guided bombs. ?Finally, also under the air inlet, there are two missiles similar in appearance to the R33, but I cant tell whether they are the original R33 or the prototype of the Thunderbolt 13... A rough calculation shows that the total load is about 8.2 tons. ?This mounting method will directly turn the aircraft into a brick, which of course has no practical significance. But it is the simplest and crudest way to demonstrate performance. Until the plane gradually disappeared from sight, Chang Haonan said to Liu Gaozhuo who was sitting next to him: You guys went to the extreme this time ?Different from the two J-11WS, the J-11B of the 00 batch is an aircraft belonging to Project 11. Its participation in the identification of the turbofan 10A is only a secondary purpose. The main purpose is to accumulate flight data under extreme conditions for the J-11B itself. So the specific flight arrangements were made by Factory 112, and Chang Haonan only knew the general situation. This time I was also shocked. The original Su-27SK only has a theoretical bomb load of about 6 tons, but because it cannot use precision-guided weapons for the ground, there is actually no chance to use up these 6 tons. But the J-11B/Su-27SM are serious multi-role fighter jets. At this time, Liu Gaozhuo''s attention was focused on the crowd in front of him. Looking at their reactions, he showed a smile that showed he had everything under control: Fortunately, what we have tested before is completely within the capabilities of the new model. Besides, doesnt this also mean that the performance of the power system is good... (End of this chapter) Chapter 870 New engine test platform Chapter 870 New Engine Test Platform ?This kind of mount is not to show the performance of the power system. Although it is relevant, it is still a bit reluctant. The core is that progress in structural design has led to an increase in load capacity and a reduction in the dead weight of the aircraft itself. Resulting in an additional three tons of bomb load on the original basis. reached 9 tons. Of course, as the KAB1500KR accounts for most of the weight of the mount, it is actually not suitable for use by a single-seat fighter. ? Most TV-guided weapons require humans to control the ammunition in the loop throughout the entire process. Very few have image matching capabilities, which can only reduce the human burden at the end. So for a single-seat aircraft, the pilot can only hand over the flight to the autopilot system, and then concentrate on controlling the ammunition by staring at the multi-function screen. This is of course nothing during training, but in actual combat there are few times when you can be so comfortable. ?Especially in the Chinese Air Forces combat scenarios, opponents generally have very strong, or at least air power capable of fighting. ?Thinking of this, Chang Haonan asked Liu Gaozhuo next to him: Mr. Liu, do you have any relevant plans for the two-seater model of the J-11B? In the last generation, from the J-11A to the J-11B to the J-11BS, each sub-model actually undertook different technical verification functions, which can be regarded as a small-step development method. So in the end, we came up with the J-16, a three-and-a-half-generation fighter jet that looks similar to the J-11BS but is a master of it all. But todays J-11B, except for the avionics system which is still at the average level at the turn of the century, other parts are completely in the shape of three and a half generations. Even at the time of design, power and heat dissipation margins have been left for the replacement of radars and flight computers with higher power and higher heat generation. Once the relevant equipment is developed and developed, just replace it directly. So, if we build a two-seater on this basis, it can be used directly as a genuine multi-purpose fighter. You mean J-11BS? Liu Gaozhuo smiled mysteriously: Of course. However, we do not intend to make the J-11BS exactly the same model as the Su-27UBM. "oh?" ?The other party wanted to show off, and Chang Haonan was happy to cooperate: Tell me in detail? Su 27UBM is the two-seater version of Su 27SM. ?According to the agreement, Sukhoi and the 601 Research Institute jointly completed the development of an improved single-seat version. Only some airborne equipment differs between the J-11B and the Su-27SM. ?However, the contract does not include the two-seater model. Of course, in principle, there wont be a big difference between the two. It is nothing more than heightening the cockpit and tail, and imposing slightly greater limits on overload at the flight control level. But obviously, Liu Gaozhuo was ready to order some flowers. There will definitely not be any big changes. After all, the ease of maintenance during the use of the troops must be taken into consideration. Liu Gaozhuo replied: But we plan to use side stick control on the J-11BS, but we havent decided yet whether to be more radical and use side sticks for both the front and rear seats, or whether the front seat should remain unchanged and only the rear seat should be changed to a side stick. This is indeed not a traumatic change. ?Especially after the airfoil control and engine control have been implemented by electronic transmission, the joystick sends out electronic signals, so technically speaking, it doesnt matter where it is placed. But for human experience, the difference will be huge. Well-designed side sticks, such as the Rafale, can give pilots an all-around more comfortable control experience. ? And the poorly designed side sticks, such as the F16, are properly controlled by the master, and are cute killers, so that they were forced to increase the proportion of a two-seater trainer type. The other thing is, Mr. Chang. After a slight pause, Liu Gaozhuo continued: Does your aviation development group have any plans to develop vector propulsion technology based on the turbofan 10? This ?Chang Haonan did not answer immediately, but lowered his head and thought for a moment. ?The other person asked about the Hangfa Group. But as the chief planner and the chief engineer of Turbofan 10, he could not say that he had a single word on this matter, but at least he had the final say and influence. It can only be said that this is one of the goals, but there is no clear timetable for it. In the end, he gave a more conservative answer: Even if this round of identification is over, the two basic models of turbofan 10A/B have only completed the design and finalization. For us, the top priority is to prepare for production and finalization, especially to increase the yield rate and output. Mr. Liu, didnt you go to the capital to find me specifically for this matter before? No matter how good the performance of the product is, it must be able to guarantee the output... An aircraft under extreme load conditions cannot perform a variety of flying maneuvers. It is already quite good if it can maintain level flight and the most basic maneuverability. Furthermore, the maximum load capacity and the maximum fuel capacity cannot be achieved at the same time. Even heavy fighter jets like the J-11B will have limited range. Hence, this flight demonstration did not last long. ?The plane circled Beiling Airport and hovered at the edge of everyone''s field of vision for a few times before reappearing in the sky at the end of the runway. From Chang Haonans perspective, it can be seen that the pilot also specifically drained some fuel before approaching the airport to ensure that the maximum landing weight did not exceed the standard. Even so, when landing, the hydraulic structure of the main landing gear was almost compressed to the limit. Even Chang Haonan could see the wings trembling slightly through the telescope... After using up most of the length of the runway, the plane slowly stopped and then entered the taxiway. It took a few more minutes before it finally stopped on the tarmac, not far from where the ceremony was held. Now, other people who dont have telescopes can clearly see the amazing stores under the aircraft. ?Especially some comrades wearing air force uniforms, their eyes were shining. What is the concept of a load of more than 8 tons? It is equivalent to flying with a J-7 hanging on it. ??The largest combat aircraft currently equipped by the Chinese Air Force is the H-6D, which only has a maximum bomb load of 9 tons. In fact, since there are not that many pylons, the most suitable mounting solution is 5-6 tons. ?And now a tactical aircraft can even produce the same level of capabilities... It was something that was completely unimaginable in the past. Looking at the aircraft in front of them with its teeth and claws arrogant and even showing some murderous intent, several representatives responsible for planning the identification mission suddenly felt that the identification plan they set seemed to be a bit conservative... Although the ceremony was held in Shengjing, the design finalization appraisal itself was centered on Haojing. After all, the Flight Test Institute is located here. Aiming at different environments, we went to several airports with typical climates such as Hailar, Shigatse and Lingshui to complete some subjects. So, the day after the identification mission officially started, the group was divided into several batches and moved to Haojing together with the three aircraft participating in the test flight. Chang Haonan himself has actually not been here for a while. ?Coming here this time, I found that Yanliang Airport is quite different from a few years ago. At least the tower in the distance and the runway facilities can clearly be seen to have been renovated. ?An Il-76 transport aircraft painted in the color of a test pilot was parked not far away. The three black numbers "760" are painted on the side of the fuselage. If you look carefully, you can also find that this aircraft is different from the ordinary IL-76. It has only three D30KP2 engines. Inside the left wing is a pod with a significantly different shape. ?As a reborn person, Chang Haonan certainly knew the identity of this plane. The No. 760 flight test platform belongs to the China Flight Test Institute. The function is similar to the No. 086 modified with Figure 16 in the past. But compared to the No. 086, which can only hang the engine under the fuselage, the Il-76 with a single wing obviously has more space, and can even support the hoisting of a giant engine with a diameter of 3.5 meters like the GE90. And more test equipment can also be installed in the engine room. In Chang Haonan''s impression, this aircraft was purchased by China in 2004 and transferred to Yanliang in 2005. It is now five years ahead of schedule, which is obviously a big plus for him, the senior management of the Aerospace Power Group. So, until he got off the plane, Chang Haonan''s eyes were still glancing in that direction unconsciously. ?The person who picked him up on the tarmac was Huang Bingxin, the newly succeeded deputy dean of the Flight Test Institute and dean of the test pilot academy. ??He is also the pilot who performed the first flight missions of the JH-7 and J-8II. ??Although by the time Chang Haonan was reborn, he had already reached the upper limit of 48 years old for flying, so the two had never interacted before. But before the former was reborn, the deeds of this test flight hero had already been declassified, and he had even gone to give them a report. So Ive heard the name before. Hello, Dean Huang. ?Chang Haonan quickly walked up to Huang Bingxin and shook hands with him: I have admired your name for a long time! Before the latter could speak, he was stunned by the enthusiasm: Mr. Chang...have you heard of me before? In this era, even within the aviation system, there is not much publicity for test pilots. ??If you have never participated in a project together, then it is normal for you to not be familiar with each other. Of course, I didnt catch up with the JH-7 and J-8II projects, but I was fortunate enough to participate in their subsequent models and heard about them from my seniors. Chang Haonan used only a few words to close the relationship between the two people who met for the first time. Then Im lucky. ? Huang Bingxin looked calm on the surface, but he felt happy to be recognized at a glance as a former test pilot: Its a pity. If I had been born four or five years later, I probably would have had the opportunity to participate in the test flight of the JH-7A ?In fact, when they met just now, Huang Bingxin noticed Chang Haonan''s eyes constantly looking far away. So, after some pleasantries, he offered to take the latter over to have a look. This is supposed to be a new flight test platform? Chang Haonan came to the nose of No. 760 and discovered that the nacelle on the inside of the main wing was actually empty. It was just a tube with two transparent ends, perhaps used for counterweight: Ive never heard you mention it before... Thats right. Huang Bingxin nodded, and then replied: When the Aerospace Power Group was established last year, didnt you say that you planned to develop a large bypass ratio turbofan engine based on the Turbofan 10 core engine? At that time, we considered that when the old 086 platform was used to test the turbofan 10 prototype, the space was already very limited. If the bypass ratio was increased, it would not be able to accommodate it. "So in order not to hold you back, we specially bought an Il-976 measurement platform from the Gromov Test Flight Institute last year, and then entrusted Ilyushin to renovate it, and then modified it into what it is now. Just last week In place. This can be considered a surprise for you... (End of this chapter) Chapter 871 Model blowout period Chapter 871 Model Blowout Period Surprise, that is indeed a surprise. But Turbofan 10 had been tested on an aerial platform about three years ago. As for this No. 760 test platform, it can only be used after the new model. So, Chang Haonan, led by Huang Bingxin, looked around the plane and prepared to leave. Dont you want to take a look inside the cabin? The latter asked. ?Chang Haonan hesitated for a moment: Forget it, there will be plenty of time in the future, lets go to the finalization appraisal meeting now Yanliang is Chinas only national-level certification and flight test agency. All products related to aviation need to go through the process at least once here. In the past few years, it was okay when there were few projects. Recently, as more and more work has been done in the aviation industry system integration, the schedule of various facilities and equipment has become a bit tight. Even meeting rooms. Sometimes there are even three sessions a day. ?Hence, it is best not to waste time. ?Although the historical and practical relationship between the aviation force and the aviation industry system is quite complicated, at least at the project level, the two parties are still Party A and Party B respectively. Design appraisal, to put it bluntly, is equivalent to Party As comprehensive assessment of the performance of Party Bs products to verify whether they have the performance promised when the project was originally established. ?Everyone who has worked for Party B knows that before handing over the finished product to Party A, they must first test it according to the same standards, or even stricter standards. The same is true for turbofan 10. Hence, the subjects involved in the finalization appraisal process have actually been done in the research and development process. ? Its just that this time, the leader changed from technicians of the aviation power system to representatives sent by the General Armament Department. ?Of course, there are tens of thousands of tests involved in the entire project cycle, and not all of them must be repeated - For example, the basic performance of the engine, thrust transient, steady state and transition state functions, intake distortion, mid-air starting, on-off afterburner and windmill rotation are a set of eight major items, about 70 minor items, and thousands of test points. Basic test suite. ??If you do all these things again, you wont have to do anything else in the next year. Hence, when the factory conducted tests before, military representatives were already deeply involved. Just go through the administrative process and make a determination on the results at that time. From this perspective, the design finalization appraisal actually starts not from the day before, but from the day of project establishment. In short, although the testing process requires Chang Haonan to follow the entire process, there is actually not much specific work for him to handle. ??It serves more of a coordinating role and a psychological anchor. Furthermore, the development process of Turbofan 10 has been smooth sailing, which is felt by everyone involved. So the overall atmosphere of this working meeting was quite relaxed. And it didnt start for several hours like most meetings of the same type. In the end, only Chang Haonan and Hai Yide, as well as a few representatives of the General Armament Department, stayed for a while longer to serve as signing machines for the hard workers. I think I signed more today than in the past year combined. ?Chang Haonan put down the pen, rubbed his sore wrist, and complained while looking at the pile of documents next to him that was 20 centimeters high. Haiyide next to him is obviously much more experienced in this regard: Youll get used to it if you sign too many. I feel like I need to find time to get a seal... It should be equivalent to a signature, right? No one said no, but we seem to be used to signing directly. How should I put it, using a seal will give people a sense of... At this point, Haiyide paused for a moment and organized his words: It gives people the impression that your handwriting is so poor that you are not visible to others. I dont care about that While talking, several people had already sorted out the documents on the table, and then, under the joint witness of both parties, they put them into a special file bag and finally affixed the seal. At the same time, people holding the next meeting have already appeared outside the conference room door one after another. Just when everyone was about to give up the place, someone suddenly called Chang Haonan. In fact, this is not surprising. ?Chang Haonan''s face is quite recognizable, at least in the circle of aviation system model chief engineers. Chang Haonan turned around when he heard his name and quickly recognized a slightly familiar face in the crowd. You are...Guo Jingshan, Mr. Guo? Guo Jingshan, the chief engineer of Bingfei Group in charge of Zhi-9 research and development. A few years ago, Chang Haonan had an encounter with the other party. also in Yanliang. ?Several helicopter models currently being promoted by Bingfei have more or less participation from Torch Group. ?However, relatively speaking, Liu Hongbo is the one who has more dealings with them. Its a pity that the latter is not a member of the Turbofan 10 R&D team, so he does not appear here. Mr. Guo, are there any new models that need to be tested for certification? After a brief greeting, Chang Haonan asked casually. ??The last time the two met because of the Z-9, the Flight Test Institute did not even have a complete set of flight test standards for helicopters. However, as the demand for helicopters in various industries has increased in recent years, the investment, funds and resources in this field have gradually increased, especially the two cooperations with Eurocopter and AgustaWestland, which can be regarded as helicopters for China. Industry has laid a pretty good foundation. At least there is no need to ask and answer questions at the same time as in the past. "right." ??Guo Jingshan motioned to the others behind him to go into the conference room, while he and Chang Haonan stayed at the door: Would you like to guess which model it is? Chang Haonan asked the question just out of personal interest. Now that the other party asked this question, he was naturally willing to cooperate: I remember...Professor Liu showed me a special armed helicopter that you modified based on the Z-9? Well...thats not the case. ?Guo Jingshan waved his hand: The dedicated Wuzhi model does not have a particularly high priority in our planning sequence. After all, the Army Aviation He stopped when he said this. It would be impolite to continue. ?However, Chang Haonan also understood what the other party meant. ?Dedicated to Wuzhi, basically only one user is Army Airlines The big brother of the army has the largest personnel and equipment. Although the amount of funds obtained is not large, not much can be used to update equipment. Simply put it is poverty. "so it is" ?Chang Haonan cant think of anything. In most helicopter-related projects, he participates in remote control. Im really not too impressed. ification ??Guo Jingshan couldnt hold his lips down at all: Its the one developed in cooperation with Eurocopter. Its called NH90 over there Now I have an impression. To be honest, participating in the research and development of NH90, the more important role in Chang Haonan''s heart is that it was the fuse that detonated the quality problems of Japanese companies. When the other party reminded me, I remembered that there was also a domestic isomer. The Z12 model...has entered the final testing stage? To be honest, he was still a little shocked. To ensure sufficient maneuverability and power redundancy, a 10-ton helicopter needs to be equipped with a 1400-1800kw turboshaft engine. But his 1600kw turbine shaft is still a piece of cake... It seems that the main contradiction in today''s aviation system is still the contradiction between the growing demand for high-performance power and the unbalanced and inadequate development of different types of aviation engines... Ahem As for joint research and development, the foundation for many things has been laid. We have made some modifications according to our own needs, but the progress is still faster. ??Guo Jingshan obviously saw the reason for Chang Haonan''s shock, so he explained directly: "There are currently two options for the power system. The civilian model directly uses the RTM322-01/9 developed by Rolls-Royce and Turbomeca. For the military model, we changed a set of reduction gears and temporarily paired it with the TV3-117VM, which is the same model as the Mi 17... " ??The NH90 in this timeline does not have many shortcomings caused by design flaws in the previous generation. It is also very normal that multiple units have taken a fancy to it at the same time, thus leading to both military and civilian models. Obviously, the results of Chang Haonan''s series of efforts in the past few years finally entered a blowout stage at the turn of this century. (End of this chapter) Chapter 872 Prepare for a rainy day Chapter 872 Prepare for a Rainy Day After completing the task assignment, the specific finalization and identification work was quickly carried out step by step. It is obvious that it is not only the project team headed by Chang Haonan who is paying attention to the situation of China''s aerospace development industry... Haojing City, Weiyang District. In the headquarters of Ciro Company. ? Adam Whittle hurriedly walked into the company door with an envelope in his hand, and then quickly walked up the stairs. Compared to more than two years ago, the layout of this building has not changed much, but the decoration inside has become a lot more gorgeous. Whittle and George Breen, who took the lead in negotiating with the Hokyung Engine Group and finally used an M250 engine introduction project to retain Ciro, are still jointly responsible for the daily business here - Its not that the two of them have been standing still in the past few years. In fact, their treatment at Rolls-Royce has been raised to the level of a deputy department manager. The pace of progress is not unsatisfactory. However, as a platform, Ciro''s importance within Rolls-Royce has progressed faster. According to general rules, it is even necessary to assign a department manager half a grade higher to serve as the British supervisor. However, the headquarters considered that the two of them were familiar with the situation in China and had already accumulated a certain network of contacts, so they rashly parachuted a leader over. There was a high probability that they would be ignored, which would not be conducive to business development. Thats why there is a situation where two deputies are in charge of the same department at the same time. Fortunately, the two of them have completely different expertise and have been through hardships together, so they havent caused any major troubles in the past two years. Whittle strode all the way and soon arrived outside Brin''s office. The door is open. The former reached out and knocked twice casually, and then walked in. ?George Brin was sorting out the business reports for this quarter. He raised his head after hearing a knock on the door and saw Whittle already sitting in front of him. ?However, before the latter could explain his purpose, Brin spoke first: Adam, you came just in time, I was just about to go find you. ??He said, turning the pile of forms 180 in his hand, and then pushed it to the other end of the desk. Before Whittle could take out the contents of the envelope, he was interrupted from casting a spell. He picked up the report and took a look: Isnt this growth momentum very good? ?He pointed to the above results of a 35% year-on-year increase in sales and a 17% year-on-year increase in profits and said ?Siro''s status can soar like a rocket. It is definitely not enough to rely on an M250 engine that can only power small helicopters and drones. ?That can only be regarded as a life extension at best, allowing the company to barely survive until the next critical time point. ?In fact, what really changed the lives of the two of them and Xiro Company was the rapid development of China''s air transport industry and the construction of the Luzhou Aviation Industrial Park. ?This has directly led to the explosive growth of Chinas investment in the aviation industry in the past two years. In the past two years, major Chinese airlines have purchased almost more passenger and cargo aircraft than in the previous ten years combined. As one of the world''s three largest aerospace suppliers, Rolls-Royce benefits from its location in Europe and has also reaped considerable dividends. Siro Company, which was not originally born for this purpose, has naturally transformed into a large joint venture responsible for aircraft engine maintenance, spare parts storage and turnover, and ground staff training. It is not an exaggeration to even say that Luo Luo Hua Xia is divided into Luo. This, in turn, further increases the market share of Rolls-Royce engines in China. ? ? Among the Airbus A330, A340, Boeing 737 and Boeing 767 newly purchased by China in recent years, more than 70% have chosen RB or Trent series engines as power. All in all, everything seems to be in a stable and improving situation. The report in front of Whittle seems to illustrate this point. But Brin shook his head: On the surface, this is indeed the case, but the hidden dangers are actually still huge. He said, turning the table to the third page, and then pointed to a table on it: Our business growth this year mainly comes from the additional batches of Boeing 767s and Airbus A340s that China purchased two years ago and last year. Thats right. ?Whittle nodded. But according to my judgment, the subsequent development of these two models is not optimistic, especially the A340. The economics of a four-engine passenger aircraft of this size are really poor, and Airbus is relatively weak compared to Boeing in the field of cargo aircraft. Brin replied: "As for the Boeing 767, although the order volume and delivery volume in the next few years are okay, the order quantity is too stable and there is no fluctuation at all, so I think this may be due to the impact that China has reached with the United States in its WTO accession negotiations. The impact of the agreement is not entirely market behavior. When the deadline stipulated in this agreement is reached, Boeing, at least the sales of Boeing 757 and 767 in China may face a round of Waterloo. In other words, although we dont have anything to worry about now, the sales situation in the next five years or longer is actually not optimistic. ??Although Whittle is not good at business, the other party has already spoken to this extent, and he will not be unable to understand: Theres nothing we can do about it. After thinking for a moment, Whittle replied in a helpless tone: "We don''t get a share of the pie in the Boeing 737 and Airbus A320, which account for the majority of sales. Although the remaining larger engines have higher profit margins, their sales are much smaller after all, especially the 767 This kind of aircraft is also a two-engine aircraft. "In addition, China has to set aside a sufficient share for its own production of passenger aircraft, so the number of this piece of cake will be even smaller." ?Brin was silent for a while, then leaned forward with his upper body, slightly closer to Whittle: We have to do something, Adam. The headquarters wont be anxious about this matter, but it is very important to the two of us. For a moment, the office fell into silence In order to provide users with more choices and share possible supply chain risks, some passenger aircraft models will use multiple engines or engine-wing combinations. ?For example, the power used by the Airbus A320 is a choice between the CFM56 series of General Electric and the V2500 series of International Aerospace Engines (IAE). But in fact, IAE is a joint venture established by four companies: Pratt & Whitney, Rolls-Royce, Nippon Aerospace Development and MTU. So for the British Rolls-Royce, they also make a profit from selling the V2500. But it is different for Ciro Company in China, especially Brin and Whittle. The maintenance and technical training of the V2500 will not be left to them. Proper competitive relationship. Whittle frowned: But even so, we cant change the procurement strategy of the Chinese people. Brin also wears a mask of pain. ?Persuading others to give up A and choose B between two competing products is still within the scope of public relations. But to persuade you not to give up the A320 and choose the 767 or the A340, that is probably something that can only be done by mind control. It''s not a level at all. ? ? Airlines have a set of decision-making processes for purchasing aircraft. They are not 4S stores. You can budget 200,000 yuan and then add money to the down payment of 200,000 yuan. If I have to say it, we can only focus on new models. After a while, Whittle came up with a new idea. "new model?" Brin quickly went through all the mainstream passenger aircraft models currently under development in his mind: The new generation of 737max and 757 have been delivered. As for the new engine models that have not yet been selected, the only one left is the Airbus A3XX. But it is a 550-seat, three-cabin super large passenger aircraft...can it really have enough sales? A3XX, Airbus super-large passenger aircraft project to compete with Boeing 737. This is the future A380. Its just that this meeting has not yet been officially named. The sales volume of its competing product, the Boeing 747, in China is actually not optimistic. So Brin showed some concerns. ??But Whittle is not too worried about this: China has 1.2 billion people, which is about four times the number of all EU countries combined. Imagine if one-fifth or even one-tenth of these people will use airplanes as their main mode of travel in the future, what a terrifying scale it will be. By that time, their domestic routes may even require such super-large passenger aircraft. ?At the turn of the century, the industrys predictions for the future of air transportation are still mainly center-to-center. That is, passengers in a region are transferred to the regional center airport through regional aviation, and then transported to another regional center through super large passenger aircraft. ?Under this thinking, the demand for passenger aircraft such as 737 and A380 will be extremely huge. The polycentric human geography of China is undoubtedly the second market that fits this model after the United States (population is concentrated on the east and west coasts). In fact, even if it is calculated using a point-to-point passenger model, this conclusion will not deviate much. Its just that at this moment, no one can predict that China will build a unique high-speed railway network in the future, taking away most of the passenger flow that originally belonged to the civil aviation industry... ?Hence, Whittles rhetoric of fighting the future sounds very reasonable. So much so that Brin was convinced without much struggle. This matter can be included in the report to the headquarters at the end of the year... ?He took out a pen, pulled off a piece of note paper from the side, and wrote down what Whittle had just thought: The engine selection of the Airbus A3XX project is crucial to expanding the Chinese market... (End of this chapter) Chapter 873 If you cant beat it, join Chapter 873 If you cant beat me, join ?Seeing this topic come to an end, Whittle finally had the opportunity to talk about his original intention of coming here. He took out several photos from the envelope and laid them out one by one on his desk: Recently, I discovered that there were several brand-new verification aircraft flying in Yanliang, so I took the time to take a few photos. ??On the other side, Brin had already written a note and turned his attention to the photo in front of him: Looks like a few Flankers produced in China... He stopped mid-sentence. Obviously, things are not that simple: "etc" ?Brin picked up one of the photos on the table: This plane seemed to have appeared in last years military parade The part between the two air inlets is different from the normal mass-produced Flanker. There is a protrusion of unknown purpose, so it is impossible to install a belly tandem pylon. Thats right. ?Whittle nodded: I speculate that it may be a device related to flight testing, integrating sensors and the like, so this aircraft is actually a technology demonstrator specifically used to test new aviation engines. In fact, his speculation is very close to the truth. Both J-11WS have been modified with an additional pipeline compartment in the belly to facilitate the replacement of the engine under test and the modification of the corresponding flight control program. This is almost the most obvious feature of this model in appearance. After all, although the J-11B, which also uses the turbofan 10, has been completely transformed in structure, it cannot be seen from its appearance alone. So this means that the new engine they publicly displayed last year may be officially put into use soon? ?Brin put the photo back on the table and looked up at Whittle opposite. As the official overseas representatives of Rolls-Royce, the two of them, and even the British members of the entire Ciro Company, are responsible for certain commercial and technical intelligence collection tasks. This is also an international practice. ?As long as you are not blatantly breaking the law, the host country will not stop you. ??Anyway, open source intelligence analysis is something that everyone understands tacitly. And it may not be possible to analyze anything useful. ?For example, after last year''s military parade, the Americans concluded that "the Turbofan 10 uses a CFM56 core machine". The operation was as fierce as a tiger''s, but it actually helped China a lot. According to Chinese practice, at this time, the product is likely to have been equipped with troops in small batches for trial use. Whittle replied: Last time they suddenly stopped purchasing components from SPEI, I specifically studied Chinas R&D project process. At that time, their aero engines and aircraft were still being developed by the same company, and the former was not even a completely independent project. But now, they have established a new company to completely separate the work on both sides. Obviously, he has not stayed in China in vain these years, at least he has a clearer understanding of the situation of the Aerospace Power Group. I remember I read the analysis last year, which said that this is an engine that is very similar to the F110 in all aspects? Brin is not specialized in technology, but he will still read some analysis articles in the industry. There were many opinions at the time. Some said it used the CFM56 core machine, while others said it was a copy of the AL31F. Whittle paid more attention to this aspect, so he patiently explained: How should I put it? Later, because Snecma Group was sanctioned by GE, it chose to cooperate with China to improve the design of the M88 engine. It is said that the current progress is good. So the current common judgment in the industry is that the new engine of the Chinese people does use, or at least refers to the design of the CFM56 or F110. Otherwise, it cannot explain why the French made this choice. Thats what he said, but Brin still keenly detected some hints from the old mans words: So you think thats not the case? HmmI dont have any direct evidence. Whittle gently touched his chin with one hand, which was his habitual action when he was deep in thought: "But from what I know, China has never been exposed to the F110 series engines in the past, and its understanding of the CFM56 is limited to some highly fragmented information obtained through different channels in the 1980s. As for the use and maintenance of the Boeing 737 , which is not a useful experience for R&D work. According to my personal experience, not having complete technical information at hand is like the foundation is not strong enough. You have to re-reinforce the foundation before building a house. In many cases, it is better to start from scratch, which can reduce a lot of constraints. Hearing this, Brin''s face instantly showed an expression of gloating: "Wait a minute...then the French were deceived by false information?" Although in today''s timeline, the relationship between the British Isles and continental European countries is much closer than in the previous life. But thats only on the official level. For the British, watching the French suffer is still one of the great pleasures in life. ?However, Whittle looked quite serious: Thats the point I want to say today. The former collected several photos and put them back in the envelope: Just five years ago, even to produce engines like Spey, they needed to purchase second-hand spare parts from stock through us. "But now, no matter what technical route they take, they are already on an equal footing with the French...at least in some aspects." At this point, he paused for a moment, and then pointed to the report that was placed next to him: If we really want to think about the next five years, or beyond, what we should worry about most is not Airbus or Boeing, but whether the Chinese models will seize the market in large numbers. A concise analysis made Brin unable to help but restrain the smile on his face. After all, it involves matters related to the company''s business. After a long time, he tentatively asked: But the Chinese are currently preparing two domestically produced passenger aircraft models. They are called C808 and C909. They are both copies or upgraded versions of Russian-made products. It seems that there is no room for us to play? That seems to be the case at the moment. Whittle leaned his upper body back on the chair: "But it needs to be noted that the Russians have lost their complete R&D system in the past. Maybe they can rebuild it one day in the future, but even then, they have missed at least 15-20 years and cannot keep up with the technological progress of the Chinese. speed." I think that after these two passenger aircraft models, the Chinese will definitely consider gradually getting rid of the Russians and seeking more advanced technology. What has happened in the past few years has proven that this process may be unstoppable. So you mean...if you cant beat me, just join? Brin''s tone felt a little tense. Thats not what I said. Whittle quickly denied: I just think that since we didnt block technology before, its better to change our thinking and start cooperating with them in the civil aviation industry. This will at least ensure that we can get a big piece of the pie. At this point, he may have felt that he was showing a bit of capitulationism, so he added another sentence: Moreover, whether they develop independently or cooperate with the Russians, they are almost completely out of our control. In comparison, it is better for us to be more proactive, so that at least we can exert some influence on them in the future..." ?This truth is correct. But there is always a feeling of I voted. Are you going to include this in your annual report? Brin scratched his head: It doesnt matter if we talk about cooperative research and development... No, no, no Whittle waved his hand: The cooperation I am referring to is not simply cooperative research and development...but like IAE, a company jointly established by Rolls-Royce and China Aerospace Power Group. Of course you cant just start with something as big as an aero engine, but you can try it out with some scattered, less important projects first Halfway through his words, he was interrupted by Brin: You wait, you wait How come this joint venture you are talking about looks so much like our Xiro Company? As a result, Whittle highlights a straightforward point: Of course its us If we can become a subject with R&D and production capabilities like IAE, then we dont have to rely on London for everything. By then, the status of you and me will be..." Whittle did not continue speaking, but stretched his hands flat and made a slight upward movement. The meaning is self-explanatory. (End of this chapter) Chapter 874 Design finalization is a new beginning Chapter 874 Design finalization is a new beginning Autumn passes and winter comes. In fact, the penultimate project in the entire national identification process was completed in November. ??The reason why we waited for nearly an extra month with a large team of people was to find the time window for the last test Special test for high cold. This is a content that has just been added to the final test standards as the China Airlines standards are gradually improved. No model has ever been carried out before. The good news is that the J-11WS verification aircraft uses the Su-27UBK airframe. As a model designed and produced by the Soviet Union, the aircraft itself has experienced the severe cold test of the Arctic Circle. So, there are only two turbofan 10 engines that need to be tested this time Under steady-state working conditions, the internal temperature of the aircraft engine reaches thousands of degrees, and even the surface will be heated to a very hot level. Naturally, there is no need to consider low temperature issues. However, the transient process from stop to start does not work. Especially many materials will undergo property changes under extremely cold conditions. Typically, almost all metals are cold brittle, with increased strength but decreased toughness. Whether an aero engine with a complex structure and huge changes in operating conditions can withstand such abnormal changes is what the special high-cold test will determine. In addition, this test will also pave the way for the subsequent introduction of similar tests into national standards related to the entire machine. Hailar, Dongshan Airport, Meng Province. Chang Haonan was wearing the thickest cotton-padded coat he had ever worn in his life, and two layers of scarves, but he was still shivering in the cold wind. He took his left hand out of his mittens, wiped the white frost on his eyelashes, and then looked at the time. 1:40 am. ?Just such an action, which lasted less than 5 seconds, already made Chang Haonan feel a knife-like sting on his exposed skin. The chief engineer next to him, Hai Yide, went to school in Bingcheng for nearly 10 years when he was young, but after all, despite his age, his body was a little unable to bear it. Fortunately, there is a local station in Hailar where aviation units are not permanently stationed. From there, some ground crews were temporarily supported, which allowed the entire testing process to run normally. In fact, originally, military aircraft testing was more suitable to be carried out at military airports, but the local area did not have the hardware conditions to maintain third-generation fighter jets, so this time there was an Il-76 carrying equipment following the J-11WS. The 2,600-meter runway of Dongshan Airport is obviously more suitable for serving such big guys. Mr. Chang, the temperature has now dropped to minus 41.5, which has reached the test standard! ?Just when Chang Haonan was wondering whether to let Hai Yide go inside the terminal to warm up, a man suddenly strode up to Chang Haonan and reported loudly. ??All comrades in the Air Force wore uniformly issued cold masks, so Chang Haonan recognized the person''s identity after looking at the other person''s military rank. The deputy director of the site who led the team to assist in the test, Wei Qiang. ?Chang Haonan took a deep breath, and a long wisp of white mist emerged from his mouth and nose. Even in the cold pole of China, waiting for a stable -40 does not happen every day. For this reason, they have been staying here for nearly a week. Then lets get started! "yes!" ??Wei Qiang stood at attention and raised his hand to salute Chang Haonan. The special test involves very few subjects, only a few related to engine cold start. As Chang Haonan''s order was issued, the vehicles and personnel who had been waiting for several days around the fighter plane suddenly became busy. In fact, if auxiliary facilities such as power supply, gas source, and oil are prepared in advance, the time spent in the test process can be further reduced. ??But after all, this is the first time that the test has been conducted under similar conditions in China, so every link and every detail must be tested thoroughly. ??If it is later confirmed that low temperature does not pose a risk to certain steps, then consider subtraction. I always feel like every time I do a test with you, I can see some new tricks that I havent seen before. ?Hayide next to him stamped his feet violently, his voice trembling a little as he spoke. ?Chang Haonan wanted to deny it at first, but when he thought about it carefully, it seemed that this was really the case. Since the first revision of the national military standard for the Turbojet 14, every project he has participated in has basically updated the relevant industry standards. So I had to come up with a wave of quotations from scriptures: There is no road in this world, but when there are more people walking on it, it becomes a road ?This is really what Lu Xun said... On the other side, although the severe cold caused some deformation of the movement, the ground crew and technicians still connected the pipelines of several auxiliary vehicles to the aircraft within the time specified in the outline. With a sharp buzzing sound, the taxi lights, navigation lights, wing lights and red anti-collision lights located on both sides of the aircraft''s landing gear and wings were illuminated at the same time. ??The voice of the pilot in the cockpit came over the radio: The equipment is powered on successfully and the engine self-checking system starts working! ??Although the fault fusion diagnosis system developed by Chang Haonan has not yet been put on an aircraft because the sensors required are too complex, the Turbofan 10 is an engine model with FADEC after all, so it is no problem to complete a usable status self-check. About half a minute later, the radio rang again: Self-test successful! Although passing the self-test does not 100% mean that the engine status is completely normal, it at least indicates that the relevant electronic control unit is in a usable state. This is also prone to low temperature failure. ?Beside Chang Haonan, someone excitedly waved his fist in the air. Its just that because the clothes were too thick, I didnt show the usual excitement at all. Instead, it seems a bit funny... ?However, after being disturbed in this way, the atmosphere at the scene, which had just been so serious that it was almost frozen, became slightly more relaxed. ?Of course, the national certification test is definitely not a success just because the pilot says it is a success. Technicians are also using instruments to simultaneously monitor the status of the aircraft.????Formal accreditation standards should be more stringent and detailed. So, it was not until ten minutes later that they gave the same result. successfully passed! Immediately afterwards, there is the second test session. Under the joint electric drive, the fuel oil system supplying the engine is also activated. At low temperatures, the flow characteristics of oil and the working conditions of pipelines, pumps and valves will be affected. Especially the two low-pressure pumps and the low-pressure shut-off valve set before the fuel heater are the top priority for low-temperature testing. ?Perhaps it was Chang Haonan''s illusion, but the time interval between the pilot''s results was much longer this time. But in the end, everything was as he expected: Oil temperature, oil pressure, and fuel flow are normal, and the throttle status response is normal! ?Judging from the timing results, although the response is slower than normal, it is still within the allowable range of the standard ? As for the ground startup process, it doesnt need to be very sensitive, as long as it can faithfully execute the pilots intention. As time goes by, the preparations are completed one after another. Finally, the final moment has come. The darkest and coldest time of the day before the sun rises. The temperature has dropped to -43.2. God is doing his best. If the temperature suddenly rises midway, you may have to wait for another time window. ?Chang Haonan took a step forward and picked up the wireless phone. Engine start! Nearly everyone clenched their fists at this moment. ?As long as this step is completed, the turbofan 10 will officially complete the design finalization appraisal. ?In a place where everyone cannot see it, the fuel nozzle begins to inject atomized aviation kerosene into the combustion chamber. The fuel quickly and evenly fills the entire space and is fully mixed with the air sent into the combustion chamber through the compressor. ?At almost the same time, the electric spark generated by the electric lighter ignited it all. "boom-" A crisp and short blast sounded. Following that, there was a slightly sharp roar... ?The entire process lasted only about a second or two, but under the combined effect of tension and low temperature, it seemed as long as a century or two. Subsequently, the engine speed climbed sharply, then fluctuated slightly, and finally stabilized near the idle speed. After the engine enters the working state, the temperature of the entire system will also rise to the normal design level. For special alpine experiments, it is no longer a part that requires special attention. Slightly further away, the head of the appraisal team of the General Armament Department took off his headphones, stood up and looked at Chang Haonan and his group: The engine started successfully! At this moment, even the severe cold of minus 40 degrees Celsius could no longer stop the enthusiasm of the test participants. ??Although there are still some purely administrative processes to go before the strict "design finalization", at this point, the champagne can be opened. Some people even took off their cotton hats and threw them into the air in ecstasy. Successful, successful ?Hayide didnt make any exaggerated movements, he just clenched his fists tightly, squatted down, and kept mumbling. Hearing his voice, Chang Haonan finally breathed a sigh of relief. A warm current surged from his body, and for a moment it even seemed to dispel the severe cold all over him. ?After a while, several deputy chief divisions, including Liu Yongquan and Yin Yongze, came closer from the surroundings and hugged or shook hands with Chang Haonan and Hai Yide respectively. Chang Haonan couldn''t even tell whether what was hanging around some people''s eyes was frost from breath or frozen tears... Mr. Chang, its done! ?Following the members of the project team, the leader of the appraisal team also came over and held Chang Haonans hands tightly: The Turbofan 10 is Chinas first aircraft engine model that has independently completed the entire process from project establishment to finalization. I am honored to have the opportunity to personally participate in it. Its not time to relax yet. Chang Haonan is naturally happy in his heart, but as the anchor of the entire project team, he knows that he cannot be too impatient during such a time of joy: Design finalization is both the end of the previous stage and the beginning of a new stage. The subsequent tasks of ramping up production capacity and finalizing production will require close cooperation between us! ??The leader of the appraisal team was born in the Air Force, and he was already grinning from ear to ear: One item at a time, one item at a time Its an absolute miracle that we can get to this point in three and a half years Production finalization and design finalization are two tasks that sound similar but are completely different in practice. Some equipment may have been manufactured for a long time, and may even be almost retired, and the production and finalization process has not yet been completed. In the end, the entire life cycle was implemented as a "small batch trial production" to achieve large-scale equipment. So, he knew that this matter could not be rushed. ?Chang Haonan just nodded and did not reply. But in fact, he already has some new ideas on how to improve the production efficiency of air film holes. Next, we just need to wait until the equipment in the Torch Laboratory is in place, and then we can conduct verification... (End of this chapter) Chapter 875 Device ready Chapter 875 Equipment is ready After the test, Chang Haonan and his team did not leave Hailar immediately. The entire team has been in the freezing cold for several days. Although the temperature did not reach as low as -40 in the past few days, it was basically stable at around -35. The indoor temperature of local central heating is often 20 or even above 30. Staying up late, coupled with frequent alternating hot and cold cycles, is a great burden on the body. ??If you have to take a long-distance flight in a row, young people will be fine, but older people will really not be able to bear it. ?So on the second day, except for the two aircrafts J-11WS and IL-76 that participated in the test, which returned to Shengjing overnight, the others rested in a local hotel for a whole day. By the way, we also enjoyed a meal of roasted whole lamb, a local specialty arranged by Deputy Station Manager Wei Qiang. After another day, everyone who had finished their rest said goodbye to the prairie. After that, its a round of relatively boring paperwork and administrative work. In addition to finalizing the design work, in 2000, the first full natural year after the establishment of the Aerospace Power Group, Chang Haonan, as the chief planner, inevitably had to conduct a comprehensive work summary. ?Also, although the research and development team of the Turbofan 10 project continues to be retained, after all, the most difficult and manpower-requiring research phase has ended. Those forces "borrowed" from brother units should also end this business trip that lasted for several years and return to the original unit. Chang Haonan needs to evaluate the performance of quite a few of them. You should know that he is not only one of the project leaders of Turbofan 10, but also a member of the leadership team at the group level. ???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? So Chang Haonan did not dare to neglect. In short, by the time he completed the tasks at hand and returned to the capital, it was already late December. The year 2001 is coming. The turn of the century, the end of the year, plus the return of victory. A celebration banquet is definitely indispensable. In fact, when the plane was still hovering over the airport and waiting to land, Chang Haonan had already seen the banners, ribbons and flowers prepared on the tarmac. The banquet was held directly in the Great Hall. ?Of course, after the de-administrative reform of state-owned enterprises, this can only be regarded as normal business behavior within the aviation power group. So we are going through the business leasing process. With the exception of Chief Accountant Wen Kangjian, who was very busy at the end of the year, all other group leaders, including General Manager Zhu Linyu, showed up. They even invited Deputy Director Zhang Hongbiao, who had met Chang Haonan before. ?Specifications are full. And Chang Haonan is naturally the absolute protagonist. Actually, this is not the first time that the Aviation Power Group has held a celebration banquet. About half a year ago, when the turbojet 6D design was finalized, the group specially celebrated it. A draft was also issued at that time. ? Its just that the turbojet 6D is only intended for the Qiang 5D after all. A short, flat and fast model used for transition in order to prevent the outbreak of local conflicts with powerful enemies in the late 1990s. Later, due to the early entry into service of the JH-7A, it was eventually included in the technical reserve and did not actually achieve mass production. So, even though it was the first model to be finalized after the group was established, it still cannot be compared with the Turbofan 10. After all, the latter can be called the starting point of a new era of China Aviation Development. Comrade Haonan, I heard that in the past week, various factories have submitted more project applications than in the past 11 and a half months combined. ?Zhang Hongbiao held the wine glass and clinked glasses with Zhu Linyu and Chang Haonan respectively: Do you have any clues about this matter? ?Although this is a question, it obviously does not really ask what the result will be. The answer is obvious. Therefore, before Chang Haonan could answer, Zhu Linyu next to him had already spoken: "Turbofan 10 is like a big school for our aviation power group." In the past few years, everyone was studying in school and there wasnt much they could do. But now, we have finally graduated! Originally, this was just to coordinate with Zhang Hongbiao. ? Turning to the end, Zhu Linyu really felt a bit like a parent who raised his child until he graduated from college and saw his child get his first salary... After all, in terms of age, he is indeed a generation older than most people who came back from retirement. For some young people, it can even be two generations behind... Facing the adulation of the two singing and harmonizing, Chang Haonan is now able to embrace them all without changing his expression. You can even counter-general an army: "Director Zhang, Mr. Zhu, we have just completed the Triumph of the Turbofan 10, which is when the enthusiasm is at its highest. Since there are more projects, in terms of funding... we can''t let things slip. Otherwise, wouldn''t it be pouring cold water on our comrades? "?" The two looked at each other, and then raised their glasses in unison: Cheers, cheers Lets not talk about work today Just kidding, if there were only three or five projects, the two of them would just grit their teeth, stamp their feet and close their eyes, and that would be the nod. However, there have been as few as 20 applications submitted in recent days, and the base number is too large. Even if many of them are just improvements of old models, or new models that are not large in size, it is impossible to approve all of them. Have no choice but to talk about him left and right. After temporarily finishing the work on these scenes, Chang Haonan was finally able to free up time and prepare to test his new ideas. ?While he was dealing with the design and finalization of the Turbofan 10, the delegation sent to Europe to purchase experimental equipment also sent back good news one after another. Especially the two most important electron microscopes in materials science research were also put in place before the New Year. Outside the Fifth Ring Road, on the new site of Torch Laboratory. Chang Haonan took several members of the research team currently in Beijing to the analysis center located underground in the main building. "I go" Li Yabo, who has been working in the laboratory with others at the school headquarters for half a year, was shocked by the environment as soon as he entered the door: This is where were going to do experiments in the future? Is this...so big? We have more and more projects at hand, and the scale of the laboratory will definitely increase, so these are not only for now, but also for preparation for the future. ?Chang Haonan walked near an electron microscope, turned his head and explained: If nothing else, at least some of the equipment requires specialized operators. It would be too inefficient and error-prone if we just rely on ourselves. So we dont need to do these tests ourselves? ?Yao Mengna came from Du Yishans research group, and she thought she was well-informed, but todays scene... can only be evaluated as having never seen it before. Chang Haonan smiled: If you have extra energy, of course you can learn it. After all, there are many skills that are not overwhelming. But when we do research, the focus is still on new theories, or transforming theories into meaningful ideas, rather than just being an emotionless tester or experimenter, which is what undergraduates who have completed their studies can do. " When Chang Haonan said "Being an undergraduate student", Yao Mengna almost involuntarily raised her eyes and glanced at him. So teacher, what is the specific project we are going to do next? Li Yabo walked around the laboratory twice and then returned to Chang Haonan. Its the point we discovered before. Chang Haonan replied: Short pulse laser can process materials through some non-thermal effects. "It''s just that after checking some information, I found that compared to carbon-based composite materials, this method seems to be more suitable for...metals." (End of this chapter) Chapter 876 Use a Nature article as bait (4k) Chapter 876: Use a Nature article as bait (4k) "Metal?" ?Li Yabo was obviously stunned for a moment. His previous research, including the paper that is currently refining experimental data, focused on carbon fiber reinforced composite (CFRP) panels of different thicknesses, and Chang Haonan had never mentioned changing the research subjects before. Why did he suddenly do so? Was it changed to metal material soon? Looking at Li Yabo who looked confused, Chang Haonan smiled and explained: I initially planned to continue the original idea and study the processing of carbon-based composite materials. "But I have been thinking about it for a while recently and found that according to the energy transfer theory of electrons and lattice, the relationship between the laser and the material being processed will be affected by the electronic thermal conductivity, the lattice thermal conductivity, and the electro-acoustic coupling coefficient. Characteristic parameters are affected, but carbon fiber, even after multi-layering, is still too anisotropic, which is a huge trouble for controllable processing. " On the contrary, metals, including alloy materials, because the electrothermal characteristics have been relatively clearly studied, are more suitable as the entry point for our research, first easy and then difficult..." Actually, he had another reason that he didnt tell ?At present, even industry leaders such as the United States, Japan, and Germany are relatively conservative in the application of CFRP materials. Especially in the aerospace field, it is almost always the icing on the cake. . Huaxias research accumulation in the field of CFRP materials is even weaker, and its commercialization level is almost completely blank. Except for some low-grade experimental products, aviation-grade products are almost 100% dependent on imports. ? Relevant papers and patents are also in a relatively chaotic state. ?In this case, great efforts have been made to develop a new processing method for CFRP, at least in a short period of time. But metal is different. ? Among other things, the turbine and the air film holes on the inner wall of the combustion chamber of the turbofan 10 are still waiting for new processes to improve production efficiency. ?As for why Li Yabo didnt know about this matter Because Chang Haonan figured out this layer while waiting for the right temperature window in Hailar. There was no time to inform him. But my paper is basically finished ?Li Yabo felt a little at a loss: Should we also use metal materials as a research object and add some content? Thats not necessary. Send me the article for a look. If there are no big problems, submit it as soon as possible. Chang Haonan waved his hand: The main purpose of your paper is to meet the graduation requirements and to make the industry misjudge our specific research direction. Hearing this, Li Yabo and Yao Mengna looked puzzled at the same time. ?Chang Haonan has never told anyone the second reason before. ?But now. There is no need to hide anymore. This topic will cause a lot of noise in the future, and it will definitely not be hidden. Chang Haonan explained: Our countrys hard power in the laser field is still much weaker than that of developed countries. If others can judge our technical route in a short period of time, there is a high probability that they will be ahead of us and catch up. Previously, his research on laser processing was basically based on his interest and technical reserves, so naturally it was mainly based on the strength of this laboratory and, at most, Beijing Hang University. But now that this topic has been linked to the finalization of the production of Turbofan 10, as the model chief engineer, he must mobilize all relevant resources. However, the technical reserves in this area are relatively weak within the Aerospace Power Group, or the entire Science and Technology Commission system. It will definitely involve the Chinese Academy of Sciences and even other universities in the system. The implications are huge, even if it is as high as two bombs and one satellite, the news will definitely leak out. ?Furthermore, the act of confidentiality itself is also a kind of information - You kid must be doing something big if you are sneaking there! Instead of doing this, it is better to openly admit that we are studying laser processing. As long as some guidance is provided in more detailed places, it may be able to achieve better results. "But" Yao Mengna next to her raised her eyebrows: "That paper...isn''t it going to be published in nature?" ?Chaining trouble for competitors through papers or patents is not a particularly uncommon thing in academic circles, especially in academic fields that are strongly related to applications. As long as you dont engage in academic fraud, others cant say anything. But take a nature article to do this... is particularly rare. After all, if you just write a random paper, there is a high probability that you will not get into Nature at all. ??And if you invest too many resources in this direction that you know is wrong, you will injure the enemy by one thousand and lose yourself by eight hundred. ?However, Chang Haonan nodded: Its not easy to let go of children to trap wolves. Its because everyone has this kind of thinking inertia that its easier to take advantage of them. The longer they are misled and the deeper they are, the more beneficial it will be to our future development. Furthermore, this paper did not involve too much energy. The equipment was not in place during this period, and I could not conduct too in-depth experiments. As for the previous investment, I regarded it as training for Li Yabo..." ?Yao Mengna and Li Yabo were speechless at the same time. Practice your hands and write a piece of Nature. Who are you going to talk to for reasoning? In fact, for a normal research group, even for the Torch Laboratory, the investment from the school headquarters is not low. But whether it is low or not is all relative. ?At present, laser processing has climbed onto the big tree of the turbofan 10 project, so the previous expenditure of millions is naturally nothing. Even if it is just used as a bait, it can be regarded as a loss of blood. One month later. London, England. Macmillan Publishing Company. For China, the 2001 Spring Festival holiday has just begun, and most people, including Chang Haonan, have gone to rest. But Europeans dont celebrate the Spring Festival, and the Christmas vacation is already over. Hence, the Nature editorial department has returned to its usual busy scene. As one of the two most prestigious journals in the field of natural sciences in the world, it receives a large number of submissions every day from various research institutions around the world. After all, there is almost no scientific researcher who has never dreamed of publishing in Nature. The number of papers in each issue of Nature, as well as the number of publications in the journal itself, are strictly limited. This is still the case even after entering the digital age. This is in sharp contrast to some journals that, in order to earn page fees, have crazy increased the number of journals after they have gone electronic and are no longer restricted by the length of paper editions. This greatly ensures the influence and authority of the journal. But for editors, it is not good news. Because with the opening of online submission channels, the number of submissions has increased by almost an order of magnitude in recent years. And among them, not even one in a thousand can break through many thresholds and finally be published... This is because the field of natural sciences has high requirements for experiments, which excludes most civil sciences. Otherwise, Im afraid it will be even lower So, for the staff of the editorial department, it is actually a bit boring... "well" Senior Editor Paul Nicholson threw the 20th paper he read today into the recycle bin, then sighed and got up to get himself a cup of black tea. "What''s wrong?" ?Fanny Black, who was sitting opposite, raised her head: Have you received any ridiculous requests for publication again? Nature is indeed a top journal. But no matter how top you are, you are still part of the academic circle. ?Although there are few cases where the editorial department is required to directly accept manuscripts due to external recruitment such as personal connections, financial interests or political pressure, it is by no means unheard of. ?This is what Blake is talking about. Thats not the case. ??Nicholson returned to his seat holding the cup: Its just that I have seen 10 papers in a row this morning claiming to have discovered a single-layer carbon atom material ??Blake didn''t answer, just showed a helpless smile. Similar experiences have happened to her before. ?If you want to publish in Nature, it is definitely impossible without some groundbreaking content. But some authors put too much groundbreaking work in the abstract instead of the conclusion... Looking at the abstract, we can see Nobel Prize-level achievements per capita. Look at the content again Even if they, the editors, are not professional researchers, they can see that it is full of loopholes. While speaking, Blake also clicked on a submission classified as "carbon-based materials", and then his eyes quickly scanned the abstract. HereI also have an article here. Although I did not discover a single layer of carbon atoms, I also said that I have solved the problem of laser thermal effects being unpredictable during the processing of carbon-based composite materials However, when she said this, her voice stopped abruptly. ?Nicholson raised his head and cast a questioning look. "etc" ? Blake raised his hand and pushed back his blond hair that was originally hanging down. This is her habitual action when thinking. The data in this articleseems like it can really be fitted? Ah? Nixon, who was about to open the next paper, immediately put down his teacup and walked around behind Blake. Then he was stunned. ??The fit between this curve and the data is too good to be true. Its not adjusted by data, right? Nixon frowned immediately. Theoretically, editors and even reviewers are not responsible for the authenticity of the data in the paper. But if you encounter something that is particularly outrageous, you should still pay attention to it. Lets first take a look at who the author is? He proposed again: If there have been results in this field before, it should still be credible. Blake followed the instructions and clicked on the personal information column of the first author. In fact, Natures review results are also highly affected by the authors past scientific research results. In other words, even if the content of the paper remains completely unchanged and a well-known professor in the industry submits it as the corresponding author, the difficulty of submitting the manuscript will be greatly reduced. ?This is not entirely due to academic hegemony, but in most cases, natural science research itself is a step-by-step process. ?There was no movement before, but now we can make a big one. The possibility is not to say impossible, at least very small. YaboLi is a complete newcomer, completely blank. ? Blake shook his head, and then clicked on the corresponding author. She was stunned by the content loaded on the screen: "Um?" ??Nixon leaned in front of the screen: HaonanChang...has published some pretty good papers, but they dont seem to have anything to do with materials science...dont you just come here to bully me? "no" ? Blake raised his hand to stop Nixon from continuing: Is this person the one who was very popular last year... one of the two people who solved the Poincar conjecture? "like" ??Nixons tone also became serious: Ill check it out ?He quickly returned to his seat and started typing on the keyboard. After a few minutes, the result was obtained: Last years Chang Haonan was a professor at a Chinese university called Beijing University of Aeronautics and Astronautics. His contact email address was...so is he really him? ?Blake nodded nervously. ?However, Nixon relaxed: Then just leave it to the reviewers. For an author of this level, we cant decide whether he can pass the manuscript or not. Thats the problem. ? Blake showed a troubled expression: "This paper... is said to be about materials science, but it is about 1/3 of the length, and at least half of the innovation lies in elaborating basic physical laws and performing mathematical calculations. I can''t think of anyone to review it for a while..." Professors of materials science most likely do not understand mathematics and theoretical physics, professors of physics may not understand mathematics, and professors of mathematics do not understand the actual situation of materials science I always feel that this paper is awkward no matter which field it is classified into. ?Chang Haonan added a lot of computational materials science content to this paper. But computational materials science is not yet a prominent subject here, so even if Black was an editor for Nature, he felt a little numb for a while. To put it bluntly, it seems more suitable to submit it to PhysicalReview She complained casually: ?PhysicalReview series founded by Cornell University, although its public reputation is not as good as Nature and Science, it is definitely an extremely important journal. In the past half century, 60% of Nobel Prize-winning papers in physics were published on it. But if you really dare to reject the manuscript, the editor will probably kill someone..." ???Nixon said half-jokingly: This kind of truly groundbreaking paper can only be published in our journal Nature. ? Blake ignored Nixon''s joke about using the names of his own and friend''s business journals, and just started looking through the list. Yes! ?After a full hour, she suddenly raised her head, and her sharp voice startled Nixon, who had almost forgotten about it. All the black tea was spilled. Henry Jeske is a materials physicist, but his research field is more theoretical, so he doesnt usually interact with us much. He published an article of a similar style in Physical Review about two years ago. Even so The cup of tea just happened to be spilled in a very bad place, so Blake quickly grabbed a piece of paper and started to wipe his pants: How many more reviewers do you need? ??But Blake no longer cared about this and started writing the email directly: It doesnt matter, let Professor Jeske recommend it to us. The content of this paper should be of interest to him... (End of this chapter) Chapter 877 Key technology: ultra-short laser processing Chapter 877 Key Technology: Ultrashort Laser Processing Time passes day by day. ?After returning to work during the Spring Festival, before most peoples holiday syndrome was completely eliminated, a shocking news suddenly came out in the field of composite materials A research team from China published a paper in the Nature journal. Based on the Boltzmann transport equation and lattice dynamics theory, they proposed an instantaneous laser-material interaction mechanism that is different from the traditional two-temperature model. The state thermoelastic model almost completely fits the processing of large-thickness CFRP plates by continuous laser sources. Even more coincidentally, the corresponding author of this paper is Chang Haonan, who participated in proving the Poincar conjecture last year, but then almost disappeared. ? No one has heard of the first author in the past, but I think he should be a student in Chang Haonans research group. Obviously, he has not been living in seclusion for more than half a year. Instead, he focused his energy on guiding students. It is also cross-border guidance. also directed a Nature Chun Chun is no longer a human being. Therefore, whether it is for research purposes, out of curiosity, or simply to join in the fun of "a Chinese scholar published Nature". In short, the popularity of this article was frighteningly high. After the paper was officially accepted, Chang Haonan has been paying attention to research in related fields. Especially arXiv. As a preprint website, most of the papers that appear on it are actually of little value. However, the amount of content published on it within a period of time is a small window that can make a big difference. In the next week, the number of new entries related to composite materials processing surged by nearly 15%... It can only be said that materials researchers should never doubt their sense of pursuit of hot topics. This is exactly what Chang Haonan wants to see. Amidst the high degree of enthusiasm, some research groups, even if their own research direction is ultra-short pulse laser, will most likely allocate some efforts to explore the direction of traditional continuous laser processing. Or at least repeat the experiments in his paper. And if a Nature article is not enough... He also has a follow-up combination of punches. So, as soon as the Lantern Festival was over, Chang Haonan went directly to Ding Gaoheng and applied to organize a symposium in the field of optoelectronics and materials physics in the name of the Science and Technology Committee. The number of participants does not have to be too large, but it must be reliable enough. In fact, when Ding Gaoheng heard the three words "symposium", he basically agreed in his heart - ?The last time Chang Haonan made a similar request was about three years ago. ?That China Aerospace Engine Industry Conference. As for the result... Everyone has seen it. China''s aviation industry has been directly introduced into a new era. ??Although Chang Haonan said that the scale of this forum will definitely be much smaller than the last one, Ding Gaoheng is not greedy. Even if he could achieve one-tenth of the effect, he would be very satisfied. ?However, before finally nodding, Ding Gaoheng still confirmed it specifically: This symposium...what are you ultimately trying to achieve? After all, there is a difference between consent and agreement. Chang Haonans answer is straightforward: I discovered that ultra-short pulse laser can be used to perform precise cold processing on any electronically active material, and this is probably the most critical technology in the production and finalization process of the turbofan 10 engine. !! Ding Gaohengs whole body tensed up instantly Are there any inheritance relationships among these studies co-authored by Chang Haonan? ?Then theres nothing more to say. ??Of course, I fully support it. Just tell me directly, which units are you going to include? Ding Gaoheng said as he took out a note from the side: We can give you 100% support for resources within the Science and Technology Commission system. As for resources outside the Science and Technology Commission, we will also try our best to fight for them! Since the other party asked this question, Chang Haonan was not polite and immediately took out the information he had prepared and handed it to the other party: First of all, its the Haojing Institute of Optics and Mechanics. I checked some information and found that they are the only one in the country that can immediately come up with a picosecond-level pulse laser that meets my power requirements. There is also the Institute of Applied Optics of Ordnance Industry Group, which has a relatively deep accumulation in the field of overall research and development of optoelectronic systems. There is an Atomic Energy Science Research Institute under the Nuclear Industry Group, and the isotope research and isotope product production capabilities there should be the highest level in the country..." ?Chang Haonan listed the names of nearly ten units in succession. In addition, if there are other researchers who specialize in these fields, they can join me as long as the background check is OK. Ding Gaoheng looked at the list in front of him and knew that this should be another big project. ?The number of people is not large, but the number of institutions involved is no less than last time. ??And a small half of them are in the Academy of Sciences system. So its quite tiring. ?However, considering the bright future once successful... Ding Gaoheng still nodded without hesitation. ? ? The Commission of Science, Technology and Industry for National Defense is, after all, a military-industrial unit, and its efficiency is still lacking. ?Although Ding Gaoheng did not dare to confirm at the time, in fact, even before the first month of the year, the units requested by Chang Haonan were sending people to the capital one after another. Especially the Haojing Institute of Optics and Mechanics, the first one he named and the most important among them, directly dispatched a team of 10 people led by Academician Hou Xun. He even stated that Academician Hous research team can pay the travel allowance by itself. ??Although it doesnt cost much, the purpose of supporting the work is still in place. Considering that the scale of this symposium is not large, it will not be held outside the capital like the previous aviation industry conference. Instead, the meeting location was directly arranged in the large conference room on the top floor of the Aerospace Power Group. The cards and the level of confidentiality are both maximized. The meeting was chaired by Chang Haonan himself. Now he no longer needs to introduce himself in detail. So, after a very brief opening remarks, the symposium got down to business. ??Although Ding Gaoheng did not publicly explain the details of the symposium convened by Chang Haonan in his previous report, everyone basically had a guess thanks to the Nature article. Its just The direction of the guess was somewhat misled by Chang Haonan. For example, Hou Xun. After the symposium officially started, as the only academician among the crowd, he naturally got the first one to speak. Professor Chang, are you gathering comrades together this time to initiate a continuous laser processing project in the name of the Aerospace Power Group? ?Hou Xuns voice was filled with obvious concern ?Of course it is not a study of Chang Haonan, but a study of Chang Haonan: In fact, Academician Hous main research direction in the past ten years has been ultrashort lasers, and he even advocated the establishment of a National Key Laboratory of Transient Optics and Photonic Technology. ??The femtosecond laser that Chang Haonan is obsessed with is the product of this laboratory. However, at the specific process level, there is still a long way to go before commercialization. This is also a common problem faced by ultra-short laser processing around the world. Therefore, when he saw the paper Chang Haonan published in Nature half a month ago, his first reaction was... panic. Even though he has never met or worked with Chang Haonan in the past, Hou Xun has heard his name many times. At the beginning, regarding those miraculous rumors, he generally had an attitude of not believing them. But the time when Poincars conjecture was proved last year was really too influential. I have no choice but to believe it. After that, Academician Hou also gradually accepted the many deeds of Chang Haonan. And such a magical person, he suddenly published a paper one day. Its still Nature. The content is completely opposite to the direction I am studying. And it just so happens that my own research has not made any significant breakthrough for a long time... Who is left alone? It is precisely for this reason that when he heard that Chang Haonan was going to hold a symposium and possibly engage in projects related to laser processing, Academician Hou said he wanted to go without even thinking about it. Even if you have to pay for it yourself, you have to go. Have to argue with Chang Haonan. Even if you lose, you must lose clearly. To this end, he had prepared sufficient research materials before the meeting, and was ready to explain to the other party that the potential of pulse lasers was at least not weaker than continuous lasers. ?Moreover, before asking the question just now, he was even mentally prepared for all the information to be turned into waste paper. but ?Chang Haonans answer was completely beyond his expectation: Academician Hou, we are indeed preparing to study related topics of laser drilling and laser cutting, and we are not doing it in a small way, but are finally preparing to achieve industrial production. However, it can now be made clear to the comrades participating in the meeting that the specific technical solution is not a continuous laser source, but a picosecond or even femtosecond pulse laser source. As soon as Chang Haonan finished speaking, Academician Hou already said what he had prepared: Professor Chang, according to my research, pulse laser "etc" It wasnt until halfway through the first sentence that the latter realized something was wrong... Professor Chang, you just said...that you are also planning to take the pulse laser source route? Chang Haonan nodded: Thats right. Academician Hou, who was fully prepared mentally, only felt his scalp numb: But the paper you published at the beginning of the month was not...the mechanism of continuous laser..." Hearing this, Chang Haonan showed a scheming smile: That...is used to mislead competitors. In an instant, the air in the entire venue almost froze. Everyones reaction was almost the same In order to mislead competitors, you published a Nature article? Our main research directions have not been published in Nature? After a moment of silence, Chang Haonan continued to speak: "Judging from your reaction just now, Academician Hou, the effect of this misdirection... seems to be pretty good." After finishing speaking, he raised his arm and lightly tapped the space bar of the laptop in front of him. The theme of todays meeting was projected on the screen "Research on Ultrashort Pulse Laser Processing Technology for Special-shaped Air Film Holes in Aeroengines". (End of this chapter) Chapter 878 Use light as a sword Chapter 878 Using light as a sword Looking at the title on the curtain, everyone present highlighted the joy of some families and the sadness of others. ??Whether it is a pulse laser or a continuous laser, it can be said that Chang Haonan has put it all together. ?Especially Academician Hou, it felt like he punched the air and then dodged his waist. Fortunately, although the process was a bit tortuous, the results are still relatively optimistic. It doesnt matter if your mental preparation is in vain. Physical preparation is not in vain, it is always a good thing. ?Hou Xun took a few deep breaths, trying to calm down. The face that had just flushed gradually returned to normal. ?Of course, there are also some people whose faces are not so good-looking. ?They were in the opposite situation to Hou Xun. They originally came to the capital with great expectations, but in the end they were disappointed. But I cant say anything ?This project is obviously closely related to the military industry, and it is normal to keep it secret before it officially starts. ?Furthermore, they have actually never said what specific technical route they want to pursue. Its just that the Nature paper that Chang Haonan published before was indeed very influential, so the person who was sent here followed academic convention and guessed that he would continue to work on continuous lasers along the lines of the paper. It is a crime to expect without authorization and break the defense without authorization. ?However, breaking the defense is still breaking the defense. Speaking of how violent the reaction was to this... ?That''s not the case. First of all, Chang Haonan, who is in charge of the project, and Academician Hou Xun, who has the most influence on the scene, have reached an agreement. No matter what the reasons are, others do not have the confidence to oppose these two people at the same time. Furthermore, as Chang Haonan said before, Chinas accumulation in laser processing is quite weak. ?Except for the Haojing Institute of Optics and Mechanics, the research in other units has basically stayed at a superficial level, and the time, energy and money invested are limited. The sunk costs are not high. So at best, I feel a little pity. There will be no frustration like Hou Xun had before when the work that I have been working on for half my life has been rejected in principle. In short, after a small interlude, the meeting quickly got back on track. A researcher from the Institute of Applied Optics hesitated for a moment and then raised his hand: Professor Chang, I dont mean anything elsebut the data from the paper you published in Nature ?The other party was hesitant. Obviously, this issue is somewhat sensitive and it is difficult to ask straightforwardly. If you are not careful, you may be considered to be provoking trouble. ?However, it is not difficult for Chang Haonan to understand the meaning. All data, calculation processes, and conclusions are of course true. He answered bluntly: When it comes to academic ethics issues, our research team is quite strict. ?While speaking, he switched to another PPT page. Shown above are several key charts in the paper. At this point, Chang Haonan continued: In fact, according to our calculations, it is indeed possible to use continuous laser to perform multi-degree-of-freedom scanning drilling with variable path, beam quality and power to avoid oxidation, stress damage and contour roughness caused by traditional thermal processing. Bad question. "It''s just that the hardware requirements for lasers are too high. We... let alone us, even developed countries cannot come up with equipment that meets the requirements in a short time. Ultra-short pulse lasers, especially when the duration is Picosecond or even femtosecond lasers below the lattice relaxation time cannot activate thermal effects in principle, so they are completely cold processing and are more suitable as a key research direction for us as a developing country. " When hearing this, the eyes of most people in the venue gradually changed when they looked at Chang Haonan You people who are engaged in military industry have really dirty hearts... Leave a ray of light for others in the wrong direction. But this glimmer of hope is still real. It seems that you can get it if you work hard. Just tell me whether you want to follow or not!?????As long as there is a little bit of instability in the heart, it will definitely turn into a frown... Immediately afterwards, Chang Haonan showed several pictures about the calculation process: "The mechanism of thermal effect machining is relatively clear and is not the focus of our research, so the calculation at the theoretical level is not difficult. I have also demonstrated it in the paper, so I will only give a brief explanation today. The focus is to show you a method The idea of ??using mathematical methods to guide materials research...I call it computational materials science! ?The paper published by Chang Haonan was not long, but he judged that most researchers in the field of materials science would most likely not understand at least one-third of the content. That is the part involving mathematical principles. This happens to be the core technology that he will use to guide the next project. So, Chang Haonan first spent about twenty minutes talking about his results like a group meeting. The result... In fact, I still received a blank look. ?But that doesnt matter. The calculation process itself will be completed by Chang Haonan himself. ?The purpose of this round of introductions is to help others build confidence in computational materials science. Otherwise, if you work with a skeptical attitude, problems may easily arise. Under the continuous bombardment of theory and reality, the thoughts at the symposium were gradually unified. After Chang Haonan finished the first part of the introduction, Academician Hou spoke first: Professor Chang, can you tell us specifically what aspects of work we need to be responsible for next? "certainly." ?Chang Haonan picked up the cup, took a sip of water, and then continued: "Comrades who have been studying ultrashort pulse lasers should be aware that so far, regarding the interaction mechanism between laser and materials, the industry generally still uses the two-temperature equation proposed by Soviet scientists in 1974, that is, The temperatures of the electronic system and the lattice system are represented by the Fourier heat conduction equation, and the two equations are related by the energy transfer term. " "This equation is simple enough in form, but it can only describe the energy conversion and temperature changes between electrons and crystal lattice, but it cannot explain the statistical laws of microscopic particle motion, nor can it simulate the state of the material after laser processing. " Even though many scholars have subsequently made parameter corrections based on this model, the shortcomings of the two-temperature model are theoretical and cannot be overcome by simply adding fixed terms. If you want to use the dual-temperature model to guide industrial production, you need to make different corrections for each processing link, and the correction method in turn requires a lot of experiments to obtain, so there is no guidance..." Not everyone can understand this part of Chang Haonans mechanism introduction, but Academician Hou, who is sitting in the first place on his left, nodded frequently. In his past research, he was really troubled by the description error of the two-temperature model. So, we need a new model Chang Haonan did not switch to PPT this time. Instead, he got up and went to a blackboard placed in the corner of the conference room, and wrote a few big words on it - Ablation threshold model. This is an idea I put forward based on the principles of molecular dynamics. Of course, it is still in a relatively preliminary state. Chang Haonan wrote another character below. ??. The ablation threshold, I define, is the laser energy flux that is sufficient to destabilize the crystal lattice, cause irreversible damage to the system, and remove at least one layer of material. This threshold does not differentiate between mechanisms of action and can be used to describe both cold ablation and thermal ablation. In the process of molecular dynamics calculations, I found that for pulse waves of picosecond or shorter time, the deviation of the ablation threshold is very small, causing ablation to transform from a statistical property to a relatively deterministic behavior. In this way, we eliminate the uncertainty of the processing parameters and only need to consider the material itself and of course the characteristics of the laser source. ? Even those who dont understand the previous mechanism part will see their eyes light up at this time. If we only need to consider materials and laser sources, wouldnt the complexity of this system... be similar to traditional machining? Perhaps due to excitement, Academician Hous voice was a little distorted. "exactly." ?Chang Haonan turned around and returned to the conference table, but did not sit back in his seat: Traditional machining requires knowledge of the hardness, stiffness, thermal expansion coefficient, shear strength, etc., of materials and tools in advance, which we collectively refer to as mechanical properties. "But ultra-short laser processing is a different set of logic. What we need to do is to find these attributes that correspond to mechanical properties and can determine the optical processing effect, and then combine them with the ablation model, and finally achieve the same results as mechanical means. , controllable processing of any known material! (End of this chapter) Chapter 879 wrong direction Chapter 879 Wrong direction The symposium is just to gather the project team and clarify the direction of the next task. Hence it did not last long. The remaining task is research and development. ?However, there is still a lot of work that needs to be done to transform the theory, which is still imperfect at present, into practice. Its not at the same level of workload as writing a thesis. This is why Chang Haonan must send people from so many units to support ? High-power picosecond lasers are readily available from Haojing Optical Machinery, but if the entire laser processing equipment is compared to a machine tool, then the laser is only equivalent to the tool head on the machine tool. ??A series of auxiliary equipment are also needed to control the accurate and efficient operation of this "light knife". There are specialties in the art industry, and many of the contents involved are things that Chang Haonan has never been exposed to. So, similar to when designing Turbofan 10, after the symposium, the entire project team was divided into three different directions. The first direction is led by Chang Haonan himself, who is responsible for further improving the ablation threshold model. Even though mechanical processing has been developed as a formal discipline, it has been developed for at least two centuries. During this process, a vast amount of production data has been accumulated, so empiricism can play a very huge role in it. However, laser processing obviously cannot wait for two centuries. Not even twenty years. So, it is impossible to have enough experience for reference. To put it into production in a short time, it is necessary to be able to reverse, at least partially, the entire process flow when the materials to be processed and the expected processing results are known. The second direction is led by Academician Hou Xun, who is responsible for the research and development of the entire laser processing equipment hardware level, as well as providing necessary experimental data support for the first direction. The Haojing Institute of Optics and Mechanics has been working on this field for many years and has accumulated a certain amount of technology. ?However, Chang Haonan put forward an additional requirement, that is, not only the laser source itself, but also the parts related to the processing characteristics of the machine tool must be made in China. On the other hand, for motors and lens groups, if the progress is indeed too late, the requirements can be relaxed appropriately. ?Judging from the current international situation, China does not need to worry about being stuck in the short term. The main thing is to cooperate with the bait thrown out before. Otherwise, he would have been so fierce in his operations, but when others checked, they found that you had bought a bunch of local volume holographic gratings that matched the pulse laser. ?That would be pure fun... As for the third direction, there is no leader for the time being. Because this is not strictly speaking "a" direction. Rather, it is responsible for ensuring the various materials needed in the manufacturing and use of equipment, ranging from radioactive isotopes to cable and fiber optic lubricants. ??Their progress will be reported to Lan Xinzhi of the Equipment Industry Department of the Science and Technology Commission, who will then coordinate with Chang Haonan... ??As instructions and documents were signed out from Chang Haonan''s pen, the newly formed R&D team gradually began to operate. ??Although these members from different systems are not yet able to work together as seamlessly as the Turbofan 10 project team, it is not a bad thing to start running in early. Race against time! At the same time, Chang Haonan was preparing to launch the project. UK, southern England, Oxfordshire. Rutherford Appleton Laboratory. Professor Martin Bock is sitting around a semicircular conference table with several corporate technical representatives from Oxford Laser Company and Edinburgh Instrument Company. At this time, everyones eyes were focused on a curtain on the wall of the conference room. What is displayed on the curtain is the paper Chang Haonan published not long ago, as well as some related experimental data. Professor Bock''s student and assistant Emily Toulson stood behind the podium not far away, controlling the speed of the PPT playback, and occasionally making some necessary additions to the specific experimental situations. ? James Cambert from Edinburgh Instruments spoke first: "Matt, we have received reports from several research institutes and laboratories, all of which stated that they can reproduce the experimental results in Professor Chang''s paper, but because the calculation process involved is more complicated, we have to do the same. The method still faces relatively big difficulties when it is popularized. So, a common concern in the industry is whether the transient thermoelasticity model proposed by Professor Chang is universal, or can it only achieve good fitting within a limited range? In fact, once Chang Haonans article was published, it aroused not only a huge amount of attention, but also a series of questions. ?Although the voices of doubt are not large, they all come from people in the industry who study related fields. Because the model proposed by Chang Haonan is indeed a bit too complicated for most engineering scholars who lack theoretical mathematical foundation. At least not to the extent that you can get the result simply by adding parameters. So that for the time being, everyone can only use the dozens of data mentioned in Chang Haonans paper to conduct repeated experiments Other data cannot even be calculated, let alone verified. Of course the people who eat melons can be indifferent, but for companies that hope to commercialize laser processing technology, the risks involved cannot be ignored. So, two companies that already had a cooperative relationship approached Professor Bock and asked him to verify the authenticity of the paper. ??Of course not referring to data. ??But a model. Its normal that most people cant understand. Martin Bock showed a confident expression on his face: The calculation process in that paper is not very easy to understand even for ordinary scholars with a background in mathematics. However, thanks to the assistance of supercomputers, I have deciphered the underlying rules..." He said, gesturing to the side. Following that, Turson switched the PPT on the screen to the next page. The above is half of the formula calculation, and an image with dense curves and data points: "Although we still don''t know the specific derivation process of Professor Chang, we can be sure that within the energy, wavelength and time scale we usually study, the transient thermoelastic model he proposed can basically fit the experimental data. The largest error is only about 5%. In other words, it is really possible to use mathematical means to calculate the thermal processing of molecules on the surface of materials, and the accuracy can meet the needs of industrial production? Even though he received a positive answer from Professor Bock, Cambert still had an expression of disbelief on his face. ?Thomas Linton, the representative of the Oxford Laser Company who had been sitting next to him, did not speak, but he also frowned slightly. As a high-tech enterprise, they have naturally heard of molecular dynamics simulation, which has been very popular in the past two years, and have even invested in many research groups doing related research. But this kind of investment is a flood-watering attempt, which does not mean that they are really optimistic about this field. In fact, most companies believe that it is unlikely to accurately apply numerical calculation methods to the field of microscopic particles, at least within 8-10 years. On the one hand, it is due to the insufficient level of computer hardware, and on the other hand, it is also the limitation of mathematical theory. But the paper before them and Professor Bock''s conclusion clearly slapped them in the face. Perhaps seeing the shock of the two business representatives, Bock paused for a while and then explained: I checked specifically and found that in addition to being the co-prover of the Poincar conjecture, Professor Chang Haonan is also the developer of TORC Multiphysics, a very influential numerical calculation software in recent years. So, its not surprising that he can perform at a level far beyond ordinary people in this interdisciplinary field. "But" ?Linton hesitated for a moment, but continued: With such a guiding model, why not start commercializing it right away? ?As a corporate executive, his first concern is money. Because theory is theory, it is not easy to commercialize it. ??Bock replied: "To truly achieve perfect continuous laser processing, the requirements for processing equipment and control systems are very demanding. The laser source needs to have five degrees of spatial freedom. In addition to laser power and beam quality, at least 7-8 parameters need to be controlled simultaneously. indivual." This is an extremely complex system even in the field of mechanical processing, not to mention maintaining the stability of the optical path itself while controlling it. The difficulty is almost equivalent to using photolithography to produce semiconductors. This analogy finally gave Linton and Campbell a somewhat intuitive concept. I speculate that if the processing object is changed from anisotropic carbon fiber composite to metal, the situation may improve a little, but not too much. At this point, he once again motioned for Tulson to turn the page: This time it is a somewhat dazzling table. Look, you two, the red data in this table was written in that paper for fitting, while the blue data was fitted after I generalized the calculations. The former wanted to put it off, but seeing that the two representatives seemed uninterested, he had to give up the idea and explained directly: "It can be seen that the parameters used for fitting in the paper are not very complex, and there is almost no rule in selecting points. This shows that even in the laboratory, they do not have the ability to control the laser source for high-complexity precision processing. capabilities, let alone the industrialization stage. This explanation is quite reasonable and well-founded. "So...since the Chinese can''t do it, can we do it at our level..." Professor Bock had been waiting for this question for a long time, so he only heard half of it before expressing his position: It can be done in the laboratory. ?He pointed at the curtain in front of him: "The complexity of the blue data in the table is close to the needs of actual industrial production, but the success rate is not yet stable. However, we are currently trying to use technology in the semiconductor processing field to improve the equipment. If we have the funds and manpower If enough, we should be able to see some results soon. Looking at the confident Professor Bock, Linton and Campbell looked at each other, and they both read the meaning of "you can give it a try" from each other''s eyes. So, Professor Bock. The Oxford Laser Company took the lead in the collaboration, so Thomas Linton stood up as the final word and came to Bock''s side: We will provide you with maximum support within the scope of our authority and wish you success as soon as possible! Martin Bock smiled and stood up to shake Lintons hand: It should be, I wish us success as soon as possible... (End of this chapter) Chapter 880 Different luck 9 Chapter 880 Different Luck 9 ?With both parties unaware of each other, a research and development competition quietly kicked off. Its just that the path one of them took was deliberately guided. Strictly speaking, it cannot be called a "mistake" - after all, if you follow that route, you will definitely achieve the same result in the end. Its just that the resources and time consumed in the process are another matter. And what began to revolve around Chang Haonan was even more than that... ?One afternoon in late February, Liang Shaoxiu strode into the headquarters building of the Aviation Industry Corporation of China, covered in dust. ?One day ago, he had just returned to Nanzheng from a stage test flight of the Air Police 200 early warning aircraft when he received a call from the capital. The phone call came from the Development Planning Department of the Aviation Industry Corporation of China, requesting him to go to Beijing as quickly as possible to discuss important model planning matters. Therefore, he only had time to catch up on his sleep at home before getting on the plane to the capital again. ?After entering the hall, Liang Shaoxiu took off his half-dry and half-wet scarf, shook it lightly, then asked for two pieces of paper from the guard room, and wiped off the water droplets on the surface of the briefcase. The weather in late winter is so annoying. What falls down is still snow, but when it falls on you it becomes water. After tidying up a bit, he spent a few minutes following the signs in the corridor to find the elevator. ??Nanzheng 182 Factory was still a marginal unit only two or three years ago. Liang Shaoxiu was only the acting chief engineer at that time, so he didn''t come to the headquarters in the capital much. It can be said that if General Manager Chang had not ordered troops, he might still be dealing with the ice accumulation problem of the Y-8 aircraft in Nanzheng at this time... Soon, Liang Shaoxiu appeared at the door of the general manager''s office, raised his hand and knocked lightly on the door. "Come in." ??A calm voice that he was not familiar with came from inside. ?However, if Chang Haonan were here, he should feel very familiar ? A month ago, at the beginning of 2001, Liang Zhuoping, the former general manager of Aviation Industry Group, was transferred to other positions due to illness. In fact, he was relegated to the second line. The successor is Liu Gaozhuo, who was transferred from Factory 112. ??That is, the former person in charge of Project No. 11 who was chatting and laughing with Chang Haonan a few months ago. Originally, Liu Gaozhuo had to wait until at least next month to deliver a trial production batch of 6 J-11Bs to the Air Force before making any job transfers. However, the plan could not keep up with the changes, and Liang Zhuoping''s health problems could not delay the work, so he had to be transferred in advance. Fortunately, the research and development of the J-11B has basically been completed, and it is not considered a temporary change of generals. Mr. Liu, you... Before Liang Shaoxiu could finish saying hello, out of the corner of his eye, he caught sight of another figure sitting on the sofa next to the office: DingDirector Ding? Ding Gaoheng''s appearance was completely unexpected, making him suddenly feel a little nervous. ?? When the senior leader went to Nanzheng to visit Air Police 200, Liang Shaoxiu and Ding Gaoheng met. ?But that time, another chief engineer Wang Xiaomo, who had a higher status and more experience, was present, and the Air Police 200 was a project he had handled himself, so he felt confident after all. So the impact I felt in my heart was not as good as this sudden attack. Comrade Shaoxiu, sit down. Ding Gaoheng nodded towards Liang Shaoxiu and raised his hand to motion to the single sofa next to him. The latter immediately sat down obediently: Director Ding, Mr. Liu, I dont know why the organization called me here this time ?The previous notification he received was about "important model planning," but on this occasion, it''s better not to make any assumptions. ?However, the other partys first question was completely beyond Liang Shaoxius expectation: Comrade Shaoxiu, you should have worked with Chang Haonan from the Aviation Power Group before? In an instant, Liang Shaoxiu''s brain was running rapidly. ??Both Ding Gaoheng and Liu Gaozhuo would know this kind of thing just by looking through the files. ?Now I specifically want to find him, the client, to confirm in person. There are only two possibilities - First, something happened to Mr. Chang. ?But looking at the expressions of the two people opposite, they dont look alike. ?Then there is only the second option: there are any projects related to Mr. Chang that I need to do myself. For him, this is naturally a dream. Collaborating with Chang Haonan, apart from other things, will definitely improve your level of understanding. ?So, Liang Shaoxiu finally breathed a sigh of relief: Thats right, from the end of 1996 to the beginning of 1997, Mr. Chang was still involved in the 83rd Project in the 601 Institute. He provided temporary support to our 182 Factory and helped us solve the icing problem on the wings of the Y-8 aircraft that had been bothering us for a long time. Furthermore, in the second half of 1997, when I first came into contact with the Air Police 200 project, the overall plan of the entire T-shaped antenna layout with double ventral fins for the early warning aircraft was predetermined by Mr. Chang. Yeah. Ding Gaoheng nodded, with a satisfied expression on his face that had just straightened up, and then turned to look at Liu Gaozhuo behind the desk: Please briefly introduce the situation. After hearing this, the latter took out a file bag from under his desk that was obviously prepared long ago. Considering the mission requirements of transport aviation in the new era, superiors decided to plan a medium-sized tactical transport aircraft to replace the Y-8, tentatively named the Y-9. Liu Gaozhuo said as he put the portfolio on his desk. ?Liang Shaoxiu quickly took it and took it apart as quickly as possible. Inside is a "New Tactical Transport Aircraft Demand Demonstration Report". Until then, Liu Gaozhuo continued: "The current preliminary indicators are that the maximum take-off weight shall not exceed 90 tons, the maximum payload shall not be less than 20 tons, the range at half load shall not be less than 5500km, and the full load range shall not be less than 3500km. The cargo hold size, of course, here Mainly refers to the cross-sectional area, which is no less than 85% of the IL-76, and it must be reserved for installing fuel tanks in the cargo hold during design to temporarily serve as hardware facilities for aerial tankers..." Listening to the performance requirements from his leader, Liang Shaoxiu felt that it was as big as one head or three. Other requirements are easy to say, but the range under a load of 20 tons is not less than 3500km... This is already about twice that of the Y8 III platform. It should also be considered that as the cross-sectional area of ??the aircraft body increases, the flight resistance itself will increase. Considering that there are currently no available replacement models of the turboprop 6C, it means that the new product cannot be a similar model of the Y8 or C130. Chief. Liang Shaoxiu calmed down, took a deep breath, and said: This indicator requirement is almost impossible to achieve with the 4-engine turboprop power of a traditional tactical transport aircraft, so Before he finished speaking, Ding Gaoheng and Liu Gaozhuo looked at each other: This is exactly why we came to you. "You should have heard before that the Aerospace Power Group has planned a large bypass ratio turbofan engine using a turbofan 10 core machine. The thrust is about 13-14 tons. According to estimates, if two turbofans are used, Fan engines instead of four turboprops should be able to achieve the performance just mentioned by Comrade Gao Zhuo. I know this model is one of the three key models planned by the Aerospace Power Group when it was established the year before last, but... ?This sudden information bombardment made Liang Shaoxiu a little confused: I remember that the turbofan 10 was only officially finalized in December last year. Has the project for this large bypass ratio turbofan been approved now..." Thats not true. Ding Gaoheng shook his head: Comrade Haonans current main focus is still on the production and finalization of the turbofan 10, but Haofa Group has already started project planning. However, considering the speed of project progress in the aviation power field in the past few years, we still believe that a time lag should be set to match the aircraft and aviation engine schedules..." ?Hearing this, Liang Shaoxiu suddenly realized The statement "make a time difference" has obviously fully taken into account his feelings. Actually, he is worried that if he and Mr. Chang start the project at the same time, other people''s engines may have been finalized, but the aircraft is still in the design state... And whats even more troubling is that Even Liang Shaoxiu himself had to admit that this possibility was not low. There is, of course, another level. Even if the aircraft progresses faster, you can get two PS90As from C909 or IL-76MF to test fly first. But if the engine progress is faster, China currently cannot find a model that can be installed. The No. 760 aircraft at the Flight Test Institute is, after all, an aerial test bed. Only one engine can be replaced, which does not meet the design finalization requirements. Just wait. It takes too much time. ?After thinking through this level, Liang Shaoxiu nodded decisively: "I see." Then, Comrade Shaoxiu. Ding Gaoheng looked at him with a smile: Are you confident that your Qin Aircraft Industry Group will take the lead in completing the design and development of this new model from scratch? ?Liang Shaoxiu''s eyes flashed. Start from scratch! In the past, due to the historical background and strength of Factory 182, several projects it handled were minor repairs based on Yun 8. But this time, it is a new project that is not directly related to Yun8, or even to any model at home and abroad. If it is done, there is a high probability that Qin Fei will be able to get rid of the shadow of Hao Fei next door and truly become an important part of the Aviation Industry Group independently. And his name will definitely remain in the history of Qinfei Group and even the entire Chinese aviation industry... Liang Shaoxiu stood up and stood at attention: Guaranteed to complete the task! (End of this chapter) Chapter 881 Trouble at the signal transmission level Chapter 881 Trouble at the Signal Transmission Level ??Although the Y-9 at this time has no blood relationship with any other model, the overall design of a military transport aircraft does not actually have much variety. In particular, superior units and user levels have now given very clear technical index requirements. Not to mention anything else, just "the cross-sectional area of ??the cargo compartment is not less than 85% of the IL-76" plus "turbofan power" do not leave much room for manipulation at the design level. Turboprop-powered transport aircraft can also tolerate some weird designs due to their slow flying speed. However, for jet transport aircraft whose cruising speed is generally above 600km/h, their overall aerodynamic characteristics are highly homogeneous. ? Full metal semi-monocoque structure, cantilevered upper monoplane with swept back angle and T-shaped tail, hanging engine... Basically, it is an Il-76 that has been reduced in height and shortened in length, but the width remains roughly the same. Or in other words, it is an all-round reduced C17. There is little room for opportunism through ingenuity. Its basically just hard work. The key to the success or failure of a model lies in the design at the structural level and the supplement and improvement of some details. ?Radical air-blowing lift-increasing technology is too risky for a tactical twin-engine aircraft and is a design that outweighs the gain and loss. As for winglets, Huaxia already has rich experience in past models, so it is worth a try. In addition, tactical transport aircraft have the need to take off and land on non-paved runways, so special attention needs to be paid to the design of the engine''s anti-foreign object and landing gear structure. Fortunately, even the larger IL-76 has this capability. It''s not as if his eyes are completely black... In short, almost on the way back to Nanzheng from the capital, Liang Shaoxiu had already roughly conceived the overall appearance of this plan. What Ding Gaoheng said before was very clear. Take the lead with Qinfei Group. In other words, it can also receive support from other brother units within the aviation industry system. Actually, this is normal. An aircraft of 80-90 tons is not big, but for China Aviation Industry, it is still a blank slate. We must concentrate our efforts on tackling key problems. ?However, that is all after the formal establishment of the project. The top priority is to turn Yun 9 from a demand into a formal project. ?Therefore, after getting off the plane, the first thing Liang Shaoxiu did was to concentrate the main research and development forces of Qinfei Group and start deploying pre-research work... On the other side, Chang Haonan didnt know at this time that Ding Gaoheng had already arranged the research and development work of Yun 9. He is working hard to perfect ultra-short laser processing technology as soon as possible... Still in the conference room of the Aerospace Power Group. Another lively project seminar is underway. The reason why I say "again" is because since the project was officially approved last month, similar plots have been staged here almost every few days. ?First, Chang Haonan routinely demonstrated the progress at the theoretical level, and then several leaders in charge of hardware research and development began to argue. ? ? And the situation today... ? ? ? It''s similar. As usual, Chang Haonan was the first to speak: Last week, Academician Hous team has used femtosecond pulse lasers to verify the ablation threshold model I proposed before. Furthermore, thanks to the fact that femtosecond lasers can be used for experiments with pulse widths of smaller steps, we also noticed some conclusions that were not reached by calculation alone. Xi''an Institute of Optics and Mechanics developed a femtosecond (one thousandth of a picosecond) laser in the mid-1990s. However, the peak power could not meet the needs of industrial production, so it was not selected as a light source by Chang Haonan. ??However, it is enough to just conduct material science research. "According to the ablation threshold model, when laser irradiates the surface of a metal material, due to the small specific heat capacity of the electrons in the metal and the violent inverse bremsstrahlung radiation, the electrons absorb a large amount of laser energy in a very short period of time, and the electron activity increases instantly. High, and through the collision of electrons, a Fermi-Dirac distribution appears. "At this time, because the temperature of the free electrons is much higher than the temperature of the lattice, the temperature of the lattice gradually rises by obtaining heat through collision with hot electrons, and finally reaches a thermal equilibrium state. The specific collisions required to achieve a thermal equilibrium state The time is mainly determined by the electron-phonon collision relaxation time, but for most metallic materials, it is on the order of 10 picoseconds. " But now we find that below 10 picoseconds, it can be further divided into three more detailed processes. Theory and experiment are always complementary to each other. ?Before Chang Haonan proposed the ablation threshold model, this femtosecond laser did not show particularly considerable scientific research value in the first few years of its birth. Without this laser for testing, the improvement of the ablation threshold model will be greatly slowed down. After a slight pause, Chang Haonan switched to a page of PPT, and then continued: "10 femtoseconds after the high-energy laser irradiates the surface of the metal material, the electrons will be stimulated ionization, and if the irradiation time is continued to 100 femtoseconds, the electron-phonon coupling will begin to occur, but it will not appear at this time. Visible thermal effects. "Continue to extend it to 1 picosecond, and the electronic lattice thermal equilibrium process will begin. The thermal effect at this time has gradually begun to appear, but the number of affected molecules is far lower than the number of molecules directly converted to the plasma state, and can basically be ignored. "Thanks to this discovery, I revised the ablation threshold model again and added two variable parameters related to the non-thermal melting process. The differential expression after solving through the implicit method is..." When Chang Haonan introduced new developments, the atmosphere in the conference room was generally calm. In addition to Academician Hous frequent active exchanges, there are only occasionally one or two people who raise their hands to ask questions. First of all, these sub-picosecond level studies are more based on future needs and will not have a great impact on the current picosecond level project. Secondly, and more importantly... ?It is true that there are not many people who can fully understand it. ?However, the next part is not so harmonious... ?After a short tea break, the two technical teams responsible for controlling signal transmission and light source control started fighting. Mainly because this device is so awkward. ?Han Zhigao, the leader of the light source control team, first expressed his position: Mr. Chang, after the last meeting, we built a simple prototype for testing. So far, we have discovered at least 8 major factors that affect laser processing. "In addition to beam quality and pulse width, which we have thought of before, there are also luminous flux density, polarization state and defocus amount. This refers to the defocus amount itself. That is to say, even if the energy ultimately acting on the material surface is the same, different The amount of defocus will also produce different processing effects..." The general meaning of these words is one: The control requirements for this processing method are extremely precise. The signal transmission process must meet low latency, low noise, high bandwidth and high stability. In addition, because the equipment itself is highly complex, the electromagnetic signals radiated outwards must be controlled at extremely low levels. level. Huo Penghua, the head of the signal transmission team, said that you are probably not dreaming. Just two low-loss conversions between optical signals and electrical signals are enough to cause a headache. How can something so good can satisfy you so much? The requirements, especially the requirement of low electromagnetic radiation, are in conflict with high bandwidth. Unless a layer of shielding layer with an outrageous thickness and weight is added, it is simply impossible to achieve. What''s even more troublesome is that in order to compensate for signal delay between the acquisition end and the control end, a technology called "real time delay line" needs to be introduced, and the compensation ability of this thing is related to the physical length, which can easily be dozens or hundreds. meters, which will have an adverse impact on transmission delay and loss... ?Chang Haonan looked at Academician Hou, who said that the problems they mentioned existed objectively, and it was indeed difficult to satisfy them at the same time. ?So the situation became deadlocked. (End of this chapter) Chapter 882 Optoelectronic data transmission Chapter 882 Optoelectronic Data Transmission Listening to the argument between Han Zhigao and Huo Penghua, Chang Haonan also felt a little bloated. ??Of course he has done a lot of projects like this that have been implemented at a specific level. But the vast majority of them, be it airplanes or aero-engines, are considered their own profession. Even if you have never eaten pork before being reborn, you have at least seen pigs running away. ?Its naturally not difficult to get started. And a few that don''t count, such as the previous heavy-duty die forging press and the earlier soft abrasive polishing technology, there are always relatively mature experiences for reference. Among them, the overall design of the former is even semi-finished. plan. It actually just requires him to solve some key puzzles. However, what we are facing this time is actually a completely new challenge. ??Ultra-short pulse laser processing equipment is literally created from scratch. Even the theory was picked out bit by bit by him. Let alone the engineering level. Leave it alone domestically, there is no precedent for him to refer to abroad. Just a little bit of fumbling. ?However, Chang Haonan knew that the two of them could not continue to quarrel like this. ? Normal work collisions are okay, but if they get angry, it will inevitably affect the progress of subsequent projects. Team Leader Huo. He interrupted the argument: If the volume and quality limitations are not considered for the time being, can it be achieved from a technical perspective alone to meet the needs of Team Leader Han? ? This type of equipment does not need to be exported. Once built, it will most likely be left in place for more than ten years or even longer, so it does not matter even if it is large. The most you can do is go directly to Shengjing and build it in situ. Just treat it as part of the infrastructure construction. ?This idea made Huo Penghua stunned. Never in his career had he seen such a strange request. But if you think about it carefully, many engineering problems are indeed caused by size limitations. If you let yourself go in this regard, you can indeed avoid a lot of problems. Han Zhigao, who had been arguing with him just now, also began to seriously consider the possibility of this idea. ?As far as the optical path is concerned, although the increase in the size of the equipment will lead to a longer propagation distance, this is not a problem for lasers. Scattering and attenuation will not become unacceptable just because it changes from 1 meter to 10 meters or 20 meters. On the contrary, the accuracy requirements for some parts can be reduced. Everything looks great. ?However, Huo Penghua finally shook his head: Even if the volume and weight are not limited, at most it can only solve the problems of electromagnetic radiation and transmission bandwidth, but delay, synchronization rate and loss will still exist, and may even become more serious due to the increase in volume... At this time, Academician Hou Xun also intervened: And a lot of electronic leakage, noise and distortion are not caused by the transmission process, but by the signal conversion process, which has little to do with the size of your equipment. This is basically the final conclusion. ?Chang Haonan had no choice but to put aside this somewhat outrageous idea for the time being, and then began to consider other possibilities. Fortunately, after such an interruption, Han Zhigao and Huo Penghua lost interest in continuing the verbal confrontation. Technically speaking. A few minutes later, Huo Penghua spoke again: The use of magnetostatic wave devices and superconducting wires is... As soon as he said these words, the comrades in the third group responsible for material support looked at him with a very unkind look and silenced him. What the hell, if anyone can achieve room temperature superconductivity, they can just wait and win the Nobel Prize. Obviously unrealistic. For a while, the conference room became quiet again. Low loss, large bandwidth, small radiation, high resolution Chang Haonan listed a series of requirements for the entire data signal processing process on the notebook in front of him. Then, another possibility suddenly occurred to me. A new possibility. What if we modulated the signal onto light? Chang Haonan''s words suddenly broke the silence. ?However, even for the experts here, this statement is a bit awkward, so no one reacted immediately. So he explained it further: I mean, using optoelectronic signals instead of electrical signals throughout the system? The moment before he spoke for the second time, Chang Haonan suddenly had an intuition. ?So while speaking, he threw the overall idea to the system for verification. Although this idea is not perfect, it requires an extremely high number of scientific research points to be perfected. But this leaves no doubt that The idea is feasible! This made Chang Haonan immediately full of confidence, and he immediately continued: "The optical carrier frequency is very high, so the signal bandwidth is narrowband compared to the carrier frequency. The transmission characteristics of the line are inherently more stable, and the loss rate of using optical fiber to transmit signals is almost negligible compared to traditional coaxial cables or waveguides. There is no fundamental problem of electromagnetic radiation, and even the electromagnetic shielding layer can be omitted..." In fact, his inspiration also came from his old profession ?Since the second decade of the 21st century, some technologically radical aircraft models have begun to further upgrade their fly-by-wire flight controls to optical-wire flight controls. The two are similar in principle and design, but use optical fiber instead of traditional cables, which has higher potential in terms of aircraft weight reduction and signal feedback efficiency. Previously, Chang Haonan even considered whether China''s aircraft design could skip telex and directly enter the era of optical transmission. But after careful consideration, there are still a large number of signal sources on the aircraft that rely on electromagnetic radiation, such as radar. Therefore, if we fully switch to optoelectronic control, we will need an additional complex electro-optical-electric conversion process. Not to mention radar signals may also be It is further contaminated by optical path noise or interference, thereby producing new distortions and distortions. Generally speaking, it is too difficult to use on small aircraft. As for use on large aircraft It is technically feasible. ?For example, the first model in the world that applied optical transmission flight control was the P1 anti-submarine aircraft. But lets not mention that China does not have a serious large aircraft on hand. Even if it does, large aircraft are not sensitive to weight, volume and control efficiency, and it seems difficult to take advantage of the light control system. P1''s optical flight control is also more of a technical verification. So this idea was put aside for the time being. But then again. ?At present, this laser processing equipment does not rely on electromagnetic radiation to work. On the contrary, its core equipment is a set of light sources. ??Although high-energy laser beams and optoelectronic signals are completely different, they at least eliminate the need for an electrical-to-optical-to-electrical conversion system that must be present on an aircraft. Overcome once and for all... Well, actually I havent overcome it. It should have bypassed the two biggest problems. At the same time, after a short period of thinking, other people in the conference room also gradually realized the feasibility of this plan. Especially Huo Penghua. It seems thats more than that ?His eyes gradually brightened: "Because of the characteristics of ultra-short pulse lasers, we need a very high-frequency control signal to meet the needs of high-precision processing. The low loss of optical fiber has nothing to do with frequency, so high-frequency signals can be transmitted directly in the link in their initial form. No down-conversion or digitization is required, and two rounds of signal conversion processes are eliminated As Academician Hou said just now, the adverse effects caused by the signal conversion process are difficult to eliminate. But now we are directly removing the firepower and cutting off two parts of this process, which is naturally a blow to dimensionality reduction. But this also means that we need to start from scratch and redesign a whole set of components related to optoelectronic signals. Academician Hou said and looked at Huo Penghua at the other end of the conference table: Penghua, the burden on you is even heavier. Before the latter could respond, Chang Haonan added: Its not just a matter of components. "Related foundations of optoelectronic transmission, such as modeling of optical switch characteristics, switching crosstalk of optical switch delay networks, delay errors, and the impact of these crosstalk and errors on array pattern and pulse compression... The accumulation of technologies in these areas are all Its relatively weak and we may need to build it up. Leader Huo, I can apply for some more manpower in the optoelectronics field, but considering the nature of the project, this number should not be particularly large. Having said that, there is no second way before Huo Penghua. Furthermore, compared with the traditional technical route that has no way out at all, the future of optical transmission systems at least looks bright. As for how twisty the road is I cant care about it now. Mr. Chang, Academician Hou, I promise to do my best to complete the task! He immediately stood up to express his position. Chang Haonan nodded with satisfaction upon seeing this. After thinking for a moment, he looked at Academician Hou on his left: "Academician Hou, the tasks on Team Leader Huo''s side are indeed very heavy, and the theoretical research on my side is progressing relatively smoothly, so I''m thinking that maybe you can transfer the progress on Team Leader Huo''s side to me. One portion? In fact, he was planning to bypass the latter and take Huo Penghua''s R&D team directly into his own hands. After all, although Chang Haonan did not have enough scientific research points to complete the entire project directly, if Huo Penghua could provide specific problems and ideas, it would be no problem to guide the specific research and development path. ?Its just that as an academician, Hou Xun still needs to symbolically solicit other peoples opinions. Of course Academician Hou understood the meaning behind this sentence, so he followed suit: How about this, Mr. Chang, let Penghua submit one to each of us when submitting project progress reports in the future? We are all decent people. ??As the project leader, Chang Haonan still holds the decision-making power. Others respect him, but he has to hold it in check. "Well, the next task is settled." Chang Haonan breathed a long sigh of relief and glanced at the dozen core members attending the meeting in front of him: Team Leader Huo will stay alone after the meeting, and we will discuss more specific research and development issues. Othersdismissal! (End of this chapter) Chapter 883 New equipment for the navy and air force Chapter 883 New equipment of the navy and air force In fact, after opening up the idea, the progress of the project was far more optimistic than everyone expected, including Chang Haonan. This is determined by the principle of optical signal propagation. The speed of light is constant, one of the most basic laws of the universe. In daily life, electrical signals and optical signals can basically be considered as instantaneous transmission. ??Moreover, if in a complete vacuum condition, the electrical signal exists in the form of electromagnetic waves, then it can indeed be equal to the speed of light. But if you look into it more deeply, its not the same thing In late March, Chang Haonan, who was busy working on the project, received two invitations. Logically speaking, there should be no influence at all on each other. After all, to produce a heavy-duty third-generation aircraft from scratch, improvements must be made on this basis. So, both sides chose the day of March 25th. But its already 2001. When the medium is a single copper or silver wire, electrical signals can travel at about two-thirds to three-quarters of the speed of light. This also made all the technical personnel involved in R&D breathe a sigh of relief. The two of them are old acquaintances. Chang Haonan, as the deputy chief engineer of the project, had almost no formal appearance during the research and development process, but he at least participated in the pre-research and overall plan determination before the project was established, and was naturally invited to attend the delivery ceremony. At least other groups can proceed with the project normally according to the original plan and put the results on the prototype for actual machine testing. ?However, the conductive medium in a complex system obviously cannot have only one wire. ?Zhang Hongbiao was still able to keep his expression calm, but his tone inevitably revealed a bit of schadenfreude: "There is only one you in China, but our Science and Technology Working Committee does not only have one deputy director, so there is no need to bother me... Shengjing is Lao Huai." Not to mention the outrageous and ruthless work that will be done in the second half of the year As if to confirm this idea. The content...is almost the same as the previous one. Including details related to the introduction of production lines and cooperation in improving the airframe structure. The only problem is So, as the main leader of the aviation power group, and someone who can also influence the direction of policy to a certain extent, he must be able to multi-task. Lao Huai naturally refers to Huai Guo Mo. However, just when he had arranged his schedule and was preparing to reply to the Qin Fei Group, he received another invitation from Shengjing. It was just a pain for Chang Haonan who was invited at the same time. We have participated in the celebration ceremony of the C808 passenger aircraft completing its certification test flight before. Of these two models, one was delivered to the Navy by Qinfei Group, and the other was delivered to the Air Force by Shengfei Group... Are you going back to the capital tomorrow afternoon? For the first time, the Navy has its own early warning aircraft. Especially Chang Haonan. ?The end result may even be one to two orders of magnitude slower than optical signals. ??He was also one of the leaders of the Science and Technology Commission that Chang Haonan first came into contact with. Ahem After participating in this one, go to Shengjing immediately to participate in the next one ?This cannot entirely be blamed on the arrangements of the aviation industry. In the final analysis, Party A has the final say on the delivery of mass-produced machines. Chang Haonan didnt mind spending two or three days on a trip to Nanzheng. Deputy director in charge of external technical exchanges. "Need not." When the plane was about to land, Zhang Hongbiao asked Chang Haonan. Rather than everyone stopping and waiting for Huo Penghua''s progress. ?This answer made Zhang Hongbiao stunned for a moment, and then he couldn''t help laughing: Yes, I forgot, the delivery of the J-11B is also tomorrow. As for Ding Gaoheng ? Ultra-short pulse laser processing is the biggest project at hand, so it is always good to save some energy from it. It was barely a time difference. By the time Huai Guomo retired, the team that Chang Haonan had just returned from his rebirth, with the exception of Ding Gaoheng, had all retreated to the second line or simply retired. ?Chang Haonan flew from Beijing to Nanzheng the day before, that is, on the afternoon of March 24. The first one comes from Qinfei Group. ??Now the J-11B has been successfully delivered. Although it is only a trial production batch, it can be regarded as a successful conclusion to the entire project. Still not much different. ??Although the People''s Liberation Army does not engage in feudal superstition, it is obviously a routine operation to choose a commemorative day for important events. Chang Haonans head was covered with black lines, he held his forehead and sighed: For the first time, the Air Force has a fully domestically produced third-generation fighter jet. Fortunately, the delivery ceremony of the Air Police 200 was in the morning, while the J-11B was in the afternoon. He was deeply involved in the original negotiations with Sukhoi on Project 11. ??The J-11B, which has been in trial production since the second half of last year, has finally saved up enough 12 turbofan 10A engines for 6 aircraft, which can be delivered to the troops... So you dont have to go there? Although the current timeline has deviated slightly from the previous life, whether intentional or not, Chang Haonan has avoided exerting too obvious influence on the Middle East in recent years. At this point, his tone suddenly changed again: This trip was originally requested by Lao Huai, saying that he wanted to take a last look at the projects he had handled before retiring Originally, this should be a good thing. ?In practical engineering applications, electrical signals often rely on current to be conducted in the medium. ?March is currently considered calm, but the next three quarters, if nothing else, can be said to be full of big news. ?There are roughly four or five types of models related to Chang Haonan that are planned to be mass-produced this year or delivered to the troops in small batches for trial use. ?At the time, it seemed that it had to be a long-term project with a cycle of 10-15 years. Last year, he was able to stay in seclusion for a month or two and only exchange minimal information with the outside world. That was because there were no major project nodes at the time, nor were there any changes in the situation that required special attention. Just to wait for this wave. After all, these two projects are typical examples of he was involved in them, but he did not directly participate in them, and they were successfully completed in the end. For picosecond lasers, it is already a barely usable level. Considering that the remaining part is to examine the adaptability under extreme weather conditions and needs to wait for a time window to appear before proceeding, and the assessment content is only related to airborne equipment and does not involve flight safety, the superiors decided to convert the verification aircraft into a prototype. The Air Police 200, which was converted into a mass-produced prototype, was delivered to the aviation force in advance for trial use. That was the day when the large-scale southeast exercise ended five years ago. "No return." The latter shook his head expressionlessly: ??Accompanying him was Zhang Hongbiao, one of the deputy directors of the Science and Technology Commission. When Project No. 11 was signed, I am afraid that even Huai Guomo himself could not imagine that he would be able to see this day before he retired. This is also what Chang Haonan hopes to see most. The Air Police 200 early warning aircraft has completed most of the national identification projects. Two happy things coincide with each other... Chang Haonan looked at the two envelopes in front of him, and suddenly had a strange feeling that "the child has grown up." The meaning behind it is self-explanatory. Although they are not arranged at the same time, they are just the front and rear feet... "so good" Therefore, the project team only replaced the cables in the prototype with optical fibers and replaced the supporting equipment accordingly, which greatly reduced signal delay and distortion. ?Various electronic components can have a negative impact on current conduction. Times have changed. Why does it become... Judging from the current situation, in two years'' time, there should be a chance of making another half step forward. ?Of course, whether it can be successful depends not only on Director Dings own efforts, but also on Comrade Xiao Changs progress in promoting the timeline... (End of this chapter) Chapter 884 The route of future early warning aircraft Chapter 884: The route of future early warning aircraft ?The plane made a tight turn over Nanzheng, and then slowly landed on the runway of Chenggu Airport. ?Compared to Shengfei or Rongfei, which Chang Haonan has often visited in recent years, Qinfei Group is indeed far behind in terms of scale and development level. This is not difficult to see from the situation at the airport. After all, it was just a backup set up just in case during the third-line construction stage, and its status was similar to that of Guihang Group in the mountains. Hence, after the end of the special period, the status itself is rather embarrassing. ?Before Chang Haonan was reborn, Qin Fei and Hao Fei had even reorganized their assets. It is said to be reorganized, but actually it is merged into the latter. He waved his hand: You said the same thing when you were designing the anti-icing design for the Yun-8. ??Liang Zhuoping cannot be said to be a bad person, but after all, he is an old man from the head office era. Facing the Aviation Power Group that has taken away half of the family property, it is inevitable that his mentality will be a little unbalanced. At least for now, it cannot be said that China has kept pace with those first-mover countries in the field of aviation development. ??A little further away, the Air Police 200 has been painted in the gray and white paint characteristic of naval aviation, and even has the four characters "Chinese Navy" written on the side. Its very stiff. Can it also be made into a double-sided rotating array? ?At that time, there were only three aircraft models of over 80 tons (Yun-20, Y-9, and H-6K). There was really no need to retain two production bases for large aircraft. After a brief pause, Wang Xiaomo continued: ?Chang Haonan himself doesnt even remember. ??And about a year ago, he also verified high-level data dimensionality reduction technology on this aircraft. Theres no need to put too much pressure on it, the turbofan 20 may not be as fast as you think. Seeing that Wang Xiaomo had no intention of continuing, Chang Haonan added: "The two back-to-back arrays can also be designed with different wavebands. For example, one side uses the S-band for precise scanning, and the other side uses the L-band for anti-stealth detection. Just rotate the corresponding arrays to the mission direction according to different types of mission requirements. Of course, we are also developing some new technologies to reduce the blind area of ??the double-sided array as much as possible. Obviously, at the operational level, the aircraft should have been taken over by comrades in the naval aviation. There were many maintenance personnel wearing blue 87-style marine camouflage standing around. But he is not a professional after all, and if he expands his words a little, his eyes will turn black. Wang Xiaomo smiled. ??Wang Xiaomo also saw that the other party was improvising, so he described it in a very popular way: So, we have built a ground simulation device for airborne radar antennas and are testing three-sided fixed arrays and two-sided rotating arrays respectively. "Ah...although the leader didn''t say it clearly, he is probably worried about not being able to keep up with the progress of your aviation development." Chang Haonan is naturally very familiar with the Air Police 200. You just said that wide-angle scanning technology can be used to further improve the detection range of the single-sided array? Although the core engine is readily available, large bypass ratio turbofans still have many unique technical difficulties, and it is difficult to take advantage of them ?But then I thought about it, now the head of the Aviation Industry Group has been replaced by Liu Gaozhuo... Wang Xiaomo replied: This question was naturally asked by Zhang Hongbiao. His requirements for the Yun 9 project itself are not very high. Furthermore, I have had a very smooth cooperation with Chang Haonan. But it must be able to fit at least a 3.2-meter-wide standard size pallet. Liang Shaoxiu, who was walking slightly behind, suddenly stopped Chang Haonan: It can be said to be hardware and software. ?However, Liang Shaoxiu is obviously much more optimistic than Chang Haonan himself: Liang Shaoxiu nodded. Chang Haonan was stunned: Moving so fast? "The detection angle of a traditional single-sided array is about 120, but if wide-angle scanning technology, such as a real time delay line, is used to replace the conventional phase shifter, it has the potential to increase to 150 or even 160, so that the double-sided The blind area of ??the array will be compressed to a very low level..." Since we are here to attend the delivery ceremony of the Air Police 200, naturally there are two chief engineers waiting on the tarmac. In the final analysis, the rotation action of mechanical scanning radar is a necessary step for the normal operation of the radar, and the rotation speed is equal to the refresh rate. Well from an antenna point of view, it doesnt matter, as long as the back-to-back antenna design like a balance beam is hidden inside the disc-shaped radome. He directly interrupted Wang Xiaomos explanation: Its not just that. ??But for phased array radar, rotation is only to fill blind spots. After adjusting the angle, it can be stopped and it will not affect the detection capability. Whether it is a balance beam antenna or a T-shaped antenna, it is always inappropriate for a large early warning aircraft. The turbofan 10 can serve with such fast efficiency. In the final analysis, it uses the active cooling design of the leading generation to achieve a higher than expected temperature in front of the turbine. This is combined with the overall design of the leading generation. In the end, it is basically the same as the 3.5-generation engine. performance. So, the chat among several people quickly shifted to content related to early warning aircraft. By the way, Mr. Chang. Zhang Hongbiao asked: Otherwise, like the Yun-9 modified from the Yun-8 in the previous life, even transporting supplies will be troublesome. Of course there will be blind spots. But in this life, the development of China''s aviation manufacturing industry has been more than 100 million points better than in the original timeline, so Chang Haonan actually still intends to lead the little brother Qinfei Group. After all, the geographical location and business scope of the two are relatively close. After the Air Police 200 is installed, what is your next plan? But if a rotatable disc is designed, the aircrafts heading will still be free, so a smaller field of view is not completely unacceptable. It mainly depends on the users choice..." ?Thats the look on a professionals face when they hear a laymans question: "However, in most cases, AWACS aircraft are far away from the main battlefield. In fact, the demand for 360 omnidirectional detection is not very large. The problem with balance beams and T-shaped antennas is that the aircraft needs to adjust its route to adapt to the scanning angle, which will have a negative impact on the flight route. limit." "have." Therefore, after some simple greetings, what was originally supposed to be a two-on-two arrangement, unknowingly turned into three other people working together to introduce the basic situation of the entire project to Zhang Hongbiao... But wouldnt there be two blind spots? Chang Haonan shook his head helplessly: Since the other party was so sure, Chang Haonan couldn''t say anything else. Not only the overall design plan came from him. "The advantage of this is that for a radome of the same size, the single antenna area of ??the double-sided rotating array can be nearly twice that of the three-sided array, but the total power consumption only increases by about one-third. In detection It will show huge advantages in terms of distance and detection efficiency, but the mechanical structure will be more complex and the weight will be larger. Chang Haonan was just wandering behind, but suddenly he heard a term from Wang Xiaomo that he seemed to have heard some time ago. ?Of course he knows this. After all, it was Chang Haonan himself and Ding Gaoheng who first proposed it. Wang Xiaomo and Liang Shaoxiu. ?In China''s system, tactical transport aircraft do not actually need to undertake the heavy task of transporting large equipment. The final actual effect was better than the theoretical expectation. ?????Is there anything else? To a certain extent, Liang Shaoxiu can even be said to be the chief engineer brought out by Chang Haonan, so he looked as usual when he said this: After all, if the aircraft is waiting for the aviation engine, it can be tested with other models first, but the aircraft such as the aviation engine cannot even be finalized..." But a few months later, the aviation industry has begun to organize research and development efforts, which is indeed a bit unexpected. What we have to do tomorrow is just a handover ceremony. But Liu Gaozhuo does not have this kind of psychological baggage. Wait a minute...Academician Wang. Some time ago, Director Ding and Mr. Liu specially called me to arrange a transport aircraft project for you. ? Zhang Hongbiao, as the deputy director of the Science and Technology Commission, could not do any homework, so he had learned about the ring project before coming and knew the antenna design of the three-sided fixed array. "fine." Its quite reasonable. There are still some shortcomings, and they are not easy to overcome. The information I read before said that radar cannot detect the 180 range. Thats right. ??Wang Xiaomo and Chang Haonan are old acquaintances, and they were not annoyed after being interrupted midway. They just nodded: But this is only on a theoretical level. The actual situation is far from being as simple as it sounds. I estimate... that it is unlikely to be applied to existing models within 10 years at least. (End of this chapter) Chapter 885 Optical phased array radar Chapter 885 Optical phased array radar For back-to-back double-sided array "camera scan", the difference between the 120 field of view and the 150 field of view may not be particularly big. After all, all it takes is moving the plate a little. But for small and medium-sized early warning aircraft using fixed double-sided arrays, that is, balance beams or T-shaped antennas, the meaning is completely different. Equivalent to reducing the detection blind zone to half of its original size. More importantly, it can reduce the possibility of the AWACS being forced to adjust its route in order to change the detection area. As a technician, Wang Xiaomo was naturally very happy to find that someone was interested in the field he was researching, so he immediately gave a more detailed explanation: ??He did not speculate on the specific technical aspects of radar. After all, although Chang Haonan had demonstrated his knowledge background in signal processing, he had almost never been involved in the research and development of radar itself before. A year and a half later, Shen Tao already has a star on his shoulder. Chang Haonan''s thinking continued for a long time, until a sudden cold wind interrupted his thoughts. Only the confused Zhang Hongbiao and Liang Shaoxiu were left, messy in the cold wind... ?However, this is enough. Chang Haonan had already noticed the other party when he was on the stage. After the ceremony, he immediately walked up and said hello: The two people, who each predicted the other''s prediction, looked at each other tacitly, then ended the topic for the time being and walked forward side by side. It is related to specific technologies. If I have to say it, it was the stimulation of that incident that made me determined to work hard..." This time, its not just about replacing cables with fiber optics. I dont know if it was Chang Haonans illusion, but there didnt seem to be much excitement in Shen Taos tone about installing the new model: "Hello Hello" From the perspective of hindsight, this had a rather negative impact on the organizational construction and equipment training level of the naval aviation force. Compensating for the signal phase difference is just a matter of course. ?However, Shen Tao''s reaction was to slightly twitch the corners of his mouth, trying to put on an excited expression. Instead, a programmable optical delay unit is used combined with a microwave photon phase shifter to form an optical beam forming network, which fully realizes phase control of the antenna array elements by photoelectric signals... ?But before he could speak, Shen Tao took the initiative to change the topic: Now the first early warning aircraft has finally been installed. Although it is only a transitional model from "backup to regular" that year, it at least gives the special aircraft unit the ability to directly participate in sea and air confrontations. The 4th Regiment of the 2nd Division of Hainan Airlines is still the only full-time special aircraft unit in Hainan Airlines and even the entire military. It is also the unit with the most experience in serving Y-8 III platforms. Then the plane with the big red flowers was dragged from a little distance to the ceremony site for a group photo. Therefore, the vast majority of phased array radars put into use use real-time delay lines in each transceiver channel to compensate for the spatial distance difference between antenna units. Shen Tao''s eyes were originally staring at the Air Police 200 attentively. After hearing Chang Haonan''s voice, he realized that there was someone behind him, so he turned around suddenly. The result failed. As for Chang Haonan The person who led the team to pick him up at the airport was even an old acquaintance of Chang Haonan. ?Of course, in that laser processing equipment, the main purpose of replacing optical fibers is simply to reduce signal delay. If we could have had the things we have now at this time five years ago, Im afraid... it would not be impossible to rewrite history. However, at this point, we still only solved the problem of target refresh rate. If the phased array radar wants to obtain better detection capabilities, it also needs to have a large enough instantaneous bandwidth and scanning angle. You know, the so-called phased array radar is actually an electronically controlled scanning using a phase shifter to control the beam, replacing the mechanical scanning that used a mechanical structure to control the rotation of the antenna array, so it can achieve an extremely high target refresh rate. Anyway, I would like to thank your aviation technology department for providing more advanced equipment. Even Zhang Hongbiao who was following him felt that he understood everything. March 25, 9 am. The last time the two met was at the 50th National Day military parade. I feel that Deputy Commander Shen is not very interested So I just thought that Chang Haonan had some new ideas about the follow-up development route of the early warning aircraft. The delivery ceremony started on time. As for the process, it is naturally the same as the third one. Mr. Chang? So he had to sigh: ?Wang Xiaomo asked with concern. Its just that this is something Chang Haonan cannot tell anyone... ?Wang Xiaomo is an academician of the Academy of Engineering and has spent his career solving problems at the engineering application level. However, for large phased array antennas, dividing the sub-arrays will result in many sub-array-level grating lobes in the field of view, causing the antenna side lobes to increase. In short, the final result is the current 120 scanning angle. Single-sided antenna, acceptable performance in all aspects..." Of course Wang Xiaomo doesnt know yet. "haven''t seen you for a long time." So the current common practice is to divide the phased array antenna into a series of sub-arrays, continue to use phase shifters for the units inside the sub-arrays, and use real-time delay lines between sub-arrays. "The ideal situation is to use a delay line on each unit of the phased array antenna, but this means tens of kilometers of extra cables for a phased array radar with thousands of transmitting units. On the one hand, The cost and size are unacceptable. On the other hand, such high-density cables will also produce very strong interference. " Chang Haonan nodded: "After I go back this time, I will do some calculations on a theoretical level. If the results are more optimistic, I will discuss it with you, Academician Wang." In fact, when Wang Xiaomo had just spoken a few sentences, he had already remembered that Huo Penghua had mentioned the same term during a seminar some time ago. Shen Tao is probably worried about this matter. He can still distinguish the priorities of things. Shen Tao still remembers that feeling of dark eyes and burning heart. The position was also promoted from the commander of the 4th HNA Regiment to the deputy division commander of the 2nd Division. ?Chang Haonan patted the other party on the shoulder: From then until 2016, all naval aviation divisions were under the simultaneous jurisdiction of the Aviation Department under the Naval Command, the Aviation Technical Support Department under the Naval Equipment Department, and the three major fleets. Let bygones be bygones. If no wide-angle scanning technology is used, then when the array normal lobe width is 2 and the field of view reaches 60, which is a 120 pointing range, the allowed relative signal instantaneous bandwidth is only 1%, and the antenna physics The larger the size, the greater the demand for relative signal instantaneous bandwidth, which is completely unacceptable for high-resolution detection. Since the range of the air-tight Y-8 is truly astonishing, the genuine transport aircraft force has little need for these later improved models, and most of its production capacity has become special aircraft platforms. But similar ideas seem to be introduced to radar So, I had to prepare to talk about other things with the other party. Then the representatives of R&D personnel and pilots expressed their opinions. After all, he is a senior academician who has been immersed in the field of radar for most of his life, and his explanations are simple and profound. ?However, since Chang Haonan didn''t say it directly, he wasn''t going to forcefully get to the bottom of it. ?However, Wang Xiaomo guessed some clues from the words in Chang Haonan''s answer. Chang Haonan said half-jokingly, thinking that the other party was tired after spinning for too long. Its just that the main equipment of the 4th Regiment at that time was only a few Y-8Xs used for maritime surveying and patrolling. They could only wander around the periphery for a few times, looking helplessly at the tense core exercise area. ?This sentence is not wrong, but it is not completely correct. It is better to improve the idea and at least come up with a complete theoretical calculation result before discussing this matter. the next day. Its just some trivial matters at the HNA organization level, no need to mention more... Not interested in anything. Were all here, lets just put them on together. Deputy Commander Shen. First, several leaders, including Zhang Hongbiao, spoke. ?However, at least for now it has been replaced by optical fiber. As for such a big move, it is normal for news to leak out one or two years in advance. Sometimes, it might be better to retain some curiosity... ?However, this kind of issue involving the construction of the military system is quite sensitive, and Chang Haonan knew that it was impossible to intervene directly. "But these two attributes are contradictory on the same radar. The greater the pointing deviation of the radar, the smaller the available instantaneous bandwidth. Generally speaking, the impact of the instantaneous bandwidth is 45, which is within the 90 pointing range. Not big, so shipborne phased array radars that are not sensitive to weight and volume, such as the American Aegis and the Sea Star system we are developing, all use 4-sided arrays to ensure the best detection results. ?Looking at the delivery ceremony tomorrow, telling Wang Xiaomo something that cannot even be called an idea, but can only be regarded as an idea at best, will not bring any real help other than making the other party feel like a cat scratching his heart. There is some inspiration, but its not perfect yet What really changed everything was the wave of rebirth with memories and experiences, and of course the system. After hearing what the other party said, Chang Haonan suddenly remembered something - In the sea and air exercise in 1996, Shen Tao, then deputy commander of the 4th Regiment, naturally participated. As for what specific technology it is... Since the latter mentioned "theoretical calculations", it is obvious that the inspiration just mentioned is by no means a large-scale matter such as the development route of early warning aircraft. ?This situation also occurs after he works for a long time. Shen Tao. Well, its not the end yet. It is true that he was ambitious and ambitious back then, but after all, human abilities have their limits. Its just that in the end Done. ?However, this is not too surprising. In 2003 in the previous life, the unified Naval Aviation Command was abolished. "Comrade Haonan, what new idea did you just...think of?" Just because the age limit for large aircraft pilots is relatively loose, they still serve as captains within the 4th regiment establishment. ??A certain length of wire is also used to compensate for the phase difference between different signals. Is there such a thing? Shen Tao naturally didn''t know the twists and turns, but glanced at Chang Haonan next to him with a slightly surprised look, and finally there was a smile in his tone: Then based on this calculation, the Americans actually suffered a big loss..." (End of this chapter) Chapter 886 Chang Jiayao’s work assignment Chapter 886 Chang Jiayaos work allocation This may be Chang Haonan''s busiest day since his rebirth. After the delivery ceremony of the Air Police 200, he didnt even have time to have lunch in Nanzheng, so he flew directly to Shengjing to prepare for another delivery ceremony in the afternoon. Since Liu Gaozhuo has been promoted to the general manager of the Aviation Industry Group ahead of schedule, the representatives sent by the No. 11 Engineering Technical Team are He Ming, who is responsible for the aircraft production and assembly tasks at Factory 112, and Sun Cong, who has been Liu Gaozhuos deputy before. The former is considered an old acquaintance of Chang Haonan. ?But the latter... ?Although he was famous in his previous life, he is not very famous this time. ?Chang Haonan only met him once when he was receiving the bat hunting medal award a few years ago. Later, his research focus gradually shifted from complete aircraft to aviation development. Later, he even became independent from the Aviation Industry Corporation, so there were naturally fewer opportunities to meet him. Looking at the two people approaching, Chang Haonan cheered up and walked down the gangway: ??Thanks to the relatively high cabin pressure of business jets, he just managed to rest for a while on the road and regained a little energy In the past, he would usually make up for a continuous period of rest after a continuous period of work. But this time, he basically just put down the project at hand and rushed to two shows in a row. Its really a bit overwhelming. Mr. Sun, Mr. He. ?Chang Haonan shook hands with the two of them respectively: Congratulations to both of you for achieving the landmark victory of Project 11! The J-11, a heavy-duty aircraft platform, will naturally continue to develop. But as for the No. 11 project in cooperation with Sukhoi, it will officially come to an end when the J-11B and Su-27SM are finalized respectively. This is not only a victory for us, but also a victory for you, Mr. Chang, and every China Airlines employee. ?Sun Congs face showed unconcealable joy. After exchanging pleasantries, several people walked towards the ceremony site that had been set up in the distance. Mr. Sun, after the J-11B is finalized, what is your next work plan? ?Chang Hao walked south and looked at Sun Cong next to him. ?Although there has been no formal order yet, it is basically a certainty that Sun Cong will take over from Liu Gaozhuo to be responsible for the subsequent upgrade and improvement of the J-11. As the leader of the aviation power group, he must pay attention to the new chief engineer''s ideas. After all, the two actually cooperate with each other. Right now, we will definitely continue to develop the two-seater model J-11BS. Mr. Liu should have told you about this before. Sun Cong naturally had no intention of concealing anything and replied immediately: What about the future... We have already received some information from our superiors, and it should be time to consider the issue of carrier-based aircraft. "Although the Flanker is still a bit too big for most aircraft carriers and is not conducive to surface operations, we currently have limited resources and time, and it is impossible to develop a medium-sized third-generation aircraft suitable for boarding ships, so we still Lets solve any problems first ?Hearing this answer, Chang Haonan roughly thought about it. The development process of aviation development needs to be coordinated with the aircraft. From this point of view, the next improvement direction of the turbofan 10 after completion of production and finalization should be a special model for carrier-based aircraft. Lets call it Turbofan 10H. Of course, this is definitely a limited improvement. Mainly to provide a "take-off mode" with greater thrust, and to improve the corrosion resistance of the cold end components and the casing. Increasing thrust is not difficult for Chang Haonan. After all, the turbofan 10A itself is a model that has been reduced in thrust and increased in life. Just release the previously hidden performance potential. But the second thing still requires additional attention. Between seaside land airports and aircraft carriers, they are not the same thing after all. While the three of them were talking, they had already arrived near the ceremony site. ?Several Air Force leaders and pilots are gathering in twos and threes near the J-11Bs that are about to be delivered. ?The situation is slightly different from the situation on the Air Police 200 side. The ground crew around the aircraft are still technicians wearing aviation industry work clothes, not Air Force ground crew. Speaking of which, which unit is receiving the equipment this time? ?Chang Haonan looked back from a short distance away, and then asked Sun Cong. The previous J-11B was not mass-produced and delivered until 2009, and the first batch of aircraft used AL31F engines. The technology was not very mature, so it was naturally handed over to the 1st Division and 1st Regiment in accordance with the principle of proximity. ?But now, the J-11B is a relatively mature model, and at least there have been no major problems during the test flight. More importantly, the 1st Regiment just upgraded to the J-8C four years ago. From the perspective of maintaining the combat effectiveness of the unit, it is unlikely to upgrade to a new model immediately. "Two units, one is the 89th Regiment of the 30th Air Division, which is also a unit of the Shengjing Military Region. It is at Donggang Liu Xiaoyuan Airport... uh... it is Dadongou Airport, not far from us, and the other is a little further away, the 3rd Division and the 9th Regiment. " Commander Wangs troops? It''s reasonable, but a little unexpected. "right." Sun Cong nodded: "They have been equipped with Su-27SK before and are relatively familiar with this model..." Zheng Liangqun, who was previously in the Shengjing Military Region, has been transferred to the Jingcheng Military Region, and Chang Haonan has no acquaintances in the Jinling Military Region, so he did not go to those airmen. Comrade went next to him and sat in the middle left position on the rostrum according to the already arranged position - The most popular one is of course Huai Guomo. ?However, as the biggest leader, he should wait a while before he comes forward. ?But Chang Haonan didnt go looking for anyone else, but someone else took the initiative to find him. Just when the former was about to close his eyes and meditate, a familiar voice came from the side. Mr. Chang, you are well. ?Chang Haonan raised his head slightly and found that it was Zhang Jiujiang who came into view. Instructor Zhang? He was a little confused for a moment. In any case, the flight academy seems to have nothing to do with today''s delivery ceremony. ?More than twenty years later, many J-11BS or BSHs have indeed entered aviation schools to serve in combat flight training missions. But now every J-11 is a treasure, how can it be lost to training units? ?However, the other party quickly answered Chang Haonans doubts. I am no longer an instructor. ?Zhang Jiujiang said as he took off his hat, put the hat badge forward under his left armpit, and sighed softly: I have a physical problem. I was grounded last month. I was transferred from the flight academy to the Air Force Staff Training Bureau. I will have to sit in an office from now on ??Although this transfer is undoubtedly a promotion, Zhang Jiujiang is obviously not happy. He is still nostalgic for the blue sky. In this situation, Chang Haonan could not do anything but comforted: Its good to be a little more stable, and even if theres nothing like this, youre almost at your age, right? You have forgotten that although I am known as a flight instructor, I am actually a test pilot. In principle, I can fly to 48 Zhang Jiujiang replied jokingly. At this point, he suddenly changed the topic and lowered his voice: Speaking of which, Mr. Chang, your sister will soon be thinking about her graduation assignment. Do you have anysuggestions on this? It is said to be a suggestion, but as long as it does not obviously violate the principles, this suggestion can most likely be "corrected". Are there any options? After hesitating for a while, Chang Haonan decided to make a small use of this relationship. ?After a pilot graduates from aviation school, he will definitely not be released to fly solo immediately. Instead, he will undergo a round of training after entering the army. Somewhat similar to the training of medical students. Its just that you can receive wages normally during this process. This round of allocation will most likely determine the unit a pilot will be in during the first few years of his career, or even for more than ten years. So it is very important. Basically the entire army can choose, and all units are short of pilots However, female pilots cannot be assigned to bomber units. Zhang Jiujiang replied: My sisters overall score is ranked 15th, and her job selection priority is very high, so you can refer to her opinion. Chang Haonan shook his head: "I asked Jia Yao during the Chinese New Year this year. She didn''t have any special ideas. In this case, I still hope she can stay closer to the capital." Then34th Division? ?This time, Zhang Jiujiang almost did it without thinking. "ah?" Chang Haonan was immediately shocked: A new pilot flies a special plane? He felt a little numb in his back. Just kidding, the plane he took was operated by the 34th Division. Noits definitely impossible for a rookie to fly a special plane like her, let alone her, even a 10-year-old pilot cant fly. Zhang Jiujiang waved his hand: "But those Tu-154M/Ds that were converted into electronic reconnaissance aircraft were actually operated under the name of the 34th Division. Although they are not as good as more advanced models, they are still passenger aircraft after all, and they are better than Yun-7 and Yun-8. We fly a lot, and were based in the suburbs of Beijing. Special aircraft ?Chang Haonan hesitated for a moment: If it does not touch the principle of distribution, then this would be the best. (End of this chapter) Chapter 887 The gust of wind returns to the blue sky Chapter 887 The gust of wind returns to the blue sky At the same time Chang Haonan attended the J-11B delivery ceremony. France, Villaroche, Air Force Base No. 125. Istel Flight Test Center. A black fighter jet slowly emerged from the huge temperature-controlled hangar and drove smoothly towards the taxiway. ??This aircraft has no visible tactical number and no positioning markings commonly seen on the surface of prototype aircraft. In addition to the circular emblem of the French Air Force, the French flag and the Dassault logo, only the three characters "C01" on the side of the vertical tail can indicate the identity of this aircraft. Rafale C, the No. 01 prototype of the mass-produced Rafale. In fact, this aircraft completed its first flight ten years ago and had already completed all its test tasks. ?As long as the Rafale officially enters service, it can be honorably retired together with the earlier Rafale A01 and enter the memorial hall. But at this critical moment, the twists and turns caused by the M88 engine project still pulled this ten-year-old comrade out of the hangar ? Replace the M88-2 engine with a modified design and conduct test flights again. Today is the moment when it returns to the blue sky. ?In the flight control center not far away, Serge Dassault was flipping through the test logs in front of him, while glancing at the C01 prototype gliding smoothly past the window out of the corner of his eye. To this day, its hard for me to believe that we actually found Chinese people to solve the problem. He said in a rather unbelievable tone: Judging from high-altitude platform simulation tests and ground installation tests, part of the performance of these two M88-2 engines is even... better than the previous solution proposed by General Electric..." ?Although Dassault is the head of the company, he is also an engineer, so he does not doubt the rigor of this test log. Just simply feel that this plot is a bit magical: "Vesta, I remember you said before that it only took eight months from the time you officially started cooperating with China to the time they came up with this plan?" At this point, he raised his head and looked at Ian Vista who was sitting on a chair not far away. The latter is a senior engineer of Snecma Group and has participated in the entire process of cooperation projects with China, from negotiation to research and development. Strictly speaking, its 7 months and 23 days. ?Vestal shrugged and replied: "The other engineer named Liu told me that the focus of this version of the M88-2 is to solve the design issues that may affect flight safety, so that Rafale C can have available engines for mass production as soon as possible, so it is not involved The development and testing process went very quickly for extensive modifications to the overall structure. Then they are quite nice people... ? Dassault continued to flip through the test log, but only halfway through it, the movement stopped: You just said that it did not involve extensive modifications to the design...but I saw that the maximum thrust has also increased by 100kg compared to before? ?Vesta nodded: In order to solve specific flight conditions, which are mainly surge problems at low speeds and severe speed changes, it is necessary to optimize the operating curve of the compressor. Thrust growth is an incidental result of this process and is not the initial goal. And no models increase target is set in units of 100kg Hearing this, Charles Edelsteiner, who had been standing next to him without speaking just now, interrupted: "In fact, compared to the maximum thrust on paper, the most obvious improvement of the M88-2 compared to the previous one is in the flight envelope, which almost completely eliminates the previous additional restrictions on the aircraft pitch angle at the flight control level to avoid surge. " It seems...the test results so far are very optimistic..." ? Dassault closed the logbook on the table in front of him, put one hand in his pocket, and turned his eyes to the C01 prototype that had stopped at the end of the runway and was about to turn on the afterburner to take off: I hope the flight test goes well too. Otherwise, it will be troublesome if we activate the backup plan... ?At the edge of the apron, there is another aircraft painted in white and very similar in appearance to the C01. It is the Rafale A01 prototype that completed its first flight earlier. It is also the final backup of the entire project ?After the cooperation between Snecma and China was reached, General Electric, realizing that it had lost its game, immediately lobbied Congress and once again approved the export of F404GE400 engines to France. Hence, the A01 prototype was also pulled out of the exhibition hall and refurbished as a backup just in case. If you look at them separately, most people may not be able to tell the difference between the two aircraft. But if you stop them together, it will be easy to see that the Type C, designed around the M88 engine, is a full circle smaller than the earliest Type A. Therefore, if you switch back to the F404 engine, you will even need to reincarnate the A-type airframe that has been abandoned. This workload is quite large. Furthermore, as the basic model, the F404GE400 has a maximum thrust of only 7.2 tons, but the A-type body has a greater empty weight than the C-type. Over and over again, the agility and maneuverability advantages that Rafale hoped to focus on when designing will completely disappear. Hence, the success or failure of M88 basically determines the success or failure of the entire project. ?While the three of them were talking to each other, the C01 prototype on the runway also stabilized its thrust. Then, release the brake. The thrust of 15.2 tons pushes the nose of the aircraft upward slightly, accelerating lightly on the runway. Serge Dassault in front of the window clenched his fists almost subconsciously. Fortunately, the weather is calm. The aircraft reached take-off speed almost in the blink of an eye. The front and rear landing gears left the ground one after another. The entire aircraft deflected slightly with the canards and rushed into the sky at a huge angle. After the test flight work was interrupted for nearly a year due to a "heart attack". finally. Another Rafale prototype has returned to the skies. As a limited improvement that has only been partially designed and improved, there is no need to start the testing of the M88-2 step by step from scratch. In addition to some necessary basic items, just make up for the content that failed in the past. Hence, several difficult tests were arranged for this first day of test flight. For example, thrust transient and left boundary operating envelope tests. These are also two long-standing problems that have been plaguing the M88 engine before. Sometimes the flight has been successfully completed on the high-altitude platform, but abnormalities still occur during the test flight. ??Although it has not caused any major accidents involving aircraft crashes or fatalities, countless engine parts have been damaged as a result. Even test pilots have figured out a way to shut down the faulty engine and then start it in the air. It is comparable to the F14A. ?However, in todays test session, I didnt get the chance to use this stunt. At the minimum flight speeds at various flight altitudes, the steady-state and transition-state performance of the engine are normal. Finally, Serge Dassault, who was sweating a little, breathed a sigh of relief. His thoughts also returned from the sky to the earth. Vesta. ?Dassault turned around and looked back at Ian Vista, who had also stood up at some point: I remember you just said that the focus of M88-2 is to solve safety problems. You mean, there should be more in-depth improved models in the future? Thats right. The latter put one hand in his pocket, half-leaned on the edge of the table next to him, and nodded: China has shown us a complete three-step plan. M88-3 will completely eliminate hidden dangers at the core machine level and restore actual performance to the paper level of M88-1. The M88-4 will redesign some components while maintaining the overall structure unchanged, and try to maximize the potential of this core machine structure. As for the specific extent of this...the Chinese people have not made it clear. After receiving this explanation, Dassault did not answer immediately. Instead, he lowered his head and stared at the cracks in the tiles on the ground, thinking. Cant we complete the latter two processes ourselves? A few minutes later, he spoke again and confirmed to Vesta. At least to M88-3, its difficult. ?Vestal told the truth without hiding anything: As for the third stepit depends on how much our design level can be improved in the next few years Look at it this way. ?Dassault paced back and forth in front of the window: "It seems we need to come up with some bargaining chips to tie up the Chinese people..." (End of this chapter) Chapter 888 It makes sense to install a laser targeting pod on a business jet, right? Chapter 888 It makes sense to install a laser targeting pod on a business jet, right? ? Serge Dassaults voice was not loud when he said this, but several people around him heard it clearly. Everyone is generally open to this matter. Making money is not shabby. ??Moreover, although General Electric has now relaxed the conditions for cooperation, after such a round of repetition, both Dassault and Snecma will inevitably have the mentality of being bitten by a snake and fearing the rope for ten years. At least in the field of military models, we have to think a lot before cooperating with the Americans in the future. Of course, more importantly, todays M88-2 engine already has a relatively obvious Chinese design style. ? Even if General Electric can really change its past and turn around, it will definitely not be easy to continue to develop on the current basis. As for rolling back to the previous version and starting from scratch... ??The French are a little timid, but they are not stupid. As we all know in the field of engineering, if a system is working properly, try not to touch it. ??Although until now, Dassault still can''t figure out how the Chinese people managed to completely reborn the M88 engine in less than three quarters, but since the test results went well, it''s best to let it continue so smoothly... ?The entire Rafale project has consumed too much energy and resources from Dassault himself and Dassault Company, and cannot afford another round of tossing. Therefore, everyone turned their attention to Ian Vista. As the technical representative of Snecma, he is the only one among everyone present who has had long-term contact and technical exchanges with China. Vesta, who was stared at by several eyes, had long been mentally prepared to express his position, so he cleared his throat and said: Judging from what I have learned and seen during this period, the Chinese aero-engine technology should have only been developed in recent years. Wellof course we know that. ?Dassault showed a helpless expression and interrupted Vesta''s speech: And I also want to know the reasons for their rapid progress, but at least for now, we should focus on more practical issues. The M88 engine is very important to Snecma Group, but it is not the most important. After all, there is still the huge sales volume of CFM56 to protect the bottom line. Although after the farce of the past two years, everyone has basically seen through that this "jointly developed" model is basically completely dominated by General Electric, but no matter what, the money that should be allocated is still a lot. However, Rafale is basically a lifeline project for Dassault, at least for the Dassault Aviation division. At present, the sales volume of Mirage 2000 is being crazily squeezed by the increasingly cheaper F16 and Su-27 series, and a new ultra-long-range business jet product line is under development. The entire civil aviation business is in a stage where it is unable to make ends meet. Srge Dassault could not be in a hurry. "I know I know." ?Vestal raised his hand and pressed it down, signaling Dassault to be calm: I want to say that the Chinese people are indeed quite unique in aviation development, especially in the field of aviation development design, but at least for now, their development is still quite uneven. "Although the Chinese have reserved many areas that are not open to us, it is not difficult to find that they are still producing several relatively backward models so far, such as the WS9 that imitates the British Spey MK202, the WJ6 that imitates the Soviet AI20M, and the Soviet P11F300s WP13, imitation PD3Ms WP8 "Compared to the new turbofan engine used on the Su-27 produced in China, and the WP14 that appeared a few years earlier, these engines are completely products of the previous generation, or even the previous era, and are completely behind in technology. , but still not completely eliminated. "The most likely reason for this situation is that they now have one...or several, but not many, very capable R&D teams, so they can come up with several new products with first-class performance, but the overall industry The level is still very low, and there are not enough capable and experienced engineers to apply the advanced technologies in these new products to other models in a short period of time..." So, we can seize this time difference, come up with something that they are interested in, and form a community of interests with them by cooperating on projects... just like the Russians did..." It should be said that Vesta has almost grasped the essence of the matter based on the limited things he has seen and heard in the past few months, which is indeed an extraordinary level. The suggestions made are also very reasonable - Compared to the simple form of buyer and seller paying for both money and goods, cooperation in which each takes what he needs is obviously a stronger relationship. ?The typical example is Snecma himself. ??Although they and General Electric had a lot of conflicts over the M88 engine issue, in order to make money through cooperation, no one had ever thought about making trouble on the CFM56 project. The only problem is Well, Mr. Vista. ?Ed Steiner, who had been listening nearby just now, frowned: "You...you can also say us, of course. Is there anything that the Chinese people will definitely be interested in?" ?This somewhat heart-wrenching question made the atmosphere cold for a while. In fact, there is indeed a lot of technical cooperation between China and France. But France is France, and Dassault is Dassault. They do not have a platform like the Aviation Industry Group or the Import and Export Corporation that can coordinate the interests of different domestic enterprises. Companies such as Dassault, Snecma, and Thales have a lot of historical connections and have been cooperating for almost half a century, so they can sit down and talk together to slightly coordinate their interests. . But companies like Eurocopter and Airbus obviously cannot take chestnuts from the fire for the benefit of Dassault. And this involves another more macro issue. The size of France as a whole is still too small after all. 550,000 square kilometers of area and 60 million people. And there is also a higher education enrollment rate that is not outstanding among developed countries. In this context, France has not given up its efforts to build a relatively complete industrial system, but it also wants to become a leader in the European integration process. As a result, there are many things that appear to be French. But its actually European. Or of the world. Even American. ?Perhaps there is not much difference at ordinary times, but when it comes to critical situations, it is often unavoidable to be helpless. CFM56 is certainly more advanced than PS90A. But if the latter is in a hurry, they can use their wealth to make transactions. It is useless no matter how urgent the former is. ??Snecma said it doesnt count at all. I remember Finally, it was Dassault who broke the silence first: Many years ago, China should have introduced a production license for the Arriel series turboshaft engines? He looked at Vesta: Can you work **** this? ? Turbomeca, which develops the Arriel engine, is a wholly-owned subsidiary of Snecma, so it is naturally better to work within the framework of the same group. You mean Ahaye 1C? ?Vesta nodded: This has indeed happened, but on the one hand they have been able to produce most of the parts independently, and on the other hand...the importance of this project in China seems to be gradually decreasing due to the impact of competing products..." Originally, the Z-9 has been Chinas only domestic and usable helicopter model for a long time, and it still has a certain status within the aviation industry system. ?However, the good times did not last long. ?Under the promotion of a certain person, Bingfei Group has successively launched two new projects, the 7-ton AC139 and the 10-ton NH90/Zhi-12, which were jointly developed in the past two years. The former is about to deliver its first product to customers, while the latter has also entered the finalization and qualification process. Especially straight 12. ?After the temporary replacement of TV3-117VM, although the appearance is top-heavy due to the enlarged engine size, which looks quite weird compared to the original NH90, and the range has also been reduced, it is still a 10-ton helicopter after all. The operating habits of the front three-point landing gear and side doors + tail hatch are similar to those of the Mi 8 series, which is already equipped with a lot of equipment. Even with great efforts, there is still a certain potential for plateau deployment. She immediately became the new Britney. ??The Navy has even made new requirements for the hangar and helicopter deck area of ??next-generation combat ships. ?Although the army has no money for the time being, like a young lady who has been to a big city, after she has set her sights high, she no longer values ??the honest people in the village. There is very little interest in the Z-9 modified armed helicopter plan. In this way, even if the Zhi-9, which has become Mrs. Niu, has not completely lost its value, at least it no longer needs to use a 4-ton body to undertake the tasks of a 6-ton or even a 10-ton helicopter as planned in the past. The urgency is naturally not that high... Speaking of collaborative R&D After another period of silence, Ed Steiner suddenly raised his head: I remember that the contact between us and China last year started in the name of jointly developing business jets? Yesbut whats the point? ?This matter was just a reason in the first place. After officially establishing a bridge with the Aviation Development Group, no one mentioned it for a long time. What if...we give up some interests in the Rafale or Falcon projects and bring Thales Group in? ? Ed Steiners mind suddenly opened up: The two Russian-made passenger aircraft currently produced by China have three-person cockpits, and more advanced cockpit equipment will definitely be needed in the future..." Even if it is not needed Thales photovoltaic system is certainly attractive enough Photoelectric system? ? Dassault was a little confused for a moment: Why do business jets need this kind of thing? Lets borrow a name ?Ed Steiner replied nonchalantly: If you have to find a reason... He raised his head and thought for a few seconds: "In order to ensure the safety of VIP passengers taking off and landing in bad weather, it is also very reasonable for business jets to carry a day and night targeting pod to observe runway conditions, or a low-altitude navigation pod to avoid obstacles to avoid accidents like Air France 296... Right?" (End of this chapter) Chapter 889 Pressure from across the ocean Chapter 889 Pressure from across the ocean ?For a project like this that involves the participation of many parties, even if there is a quite special relationship between several companies, there will inevitably be some wrangling before it can be officially started. However, with the help of Dassault, relevant information, or rumors, was quickly and deliberately "leaked" to the Chinese side. After all, its cooperation. If one party has feelings, the other party must also be intentional. So, after Chang Haonan returned to the capital, he didn''t even have time to talk to Academician Hou Xun and Huo Penghua about the feasibility of the "optical beam forming network" idea. He was told this during a routine work report to Ding Gaoheng. thing. Forward-looking terrain mapping and automatic obstacle avoidance system All-weather ground topography observation and target marking system Diffraction head-up display system 17 new optional sensors ensure normal take-off, landing and flight of aircraft in harsh weather conditions with minimum to zero visibility Chang Haonan was a little scratched by the content of this information: It sounds like what Dassault is planning to design is not a business jet, but a tactical bomber Some passenger aircraft or transport aircraft do have the need to operate in harsh weather conditions, but generally speaking, the altitude at which such aircraft normally fly will not involve weather phenomena such as rain, snow, and fog, and there will be no obstacles. . So only the take-off and landing processes with relatively low speeds need to be considered. The solution is also relatively simple. For example, the NH90 and some models of IL-76 will install a multi-channel infrared/visible light camera under the nose of the aircraft to allow the driver to observe the basic conditions of the runway. ??And Dassault''s set of things configured on "business jets" are fully functional and can support the aircraft to fly at low altitudes at night, or to observe ground conditions at an altitude of several thousand meters. The Su 34 next door has the same function. ??And because it is implemented in the form of an external pod, the field of view is even better than the fixed field of view Platan system on the Su-34... When he turned the page again and saw a more detailed introduction, he couldn''t hold it any longer: Isnt this T... just a Damocles targeting pod? ??Nearly swearing. And a low-altitude navigation pod? I didnt even know the French had such a model Well...allowing aircraft to fly at low altitudes below 100 meters and in low visibility conditions is really business-like..." Obviously, Chang Haonan is still relatively new to shamelessness and still has a lot to learn. Ding Gaoheng nodded: Business jets are just a cover to cover up... The French probably want to maintain deeper cooperation with us on the Rafale project, so they use these things as bait... as bargaining chips. After all, he is two of the five most decent people. ?There are some things that even if the whole world knows what is going on, you still have to live with it in terms of face. For a NATO country to engage in this level of military and technical cooperation with China, if it were completely open, it would be like a slap on the head of the NATO leader. ?It doesnt matter if you want to turn a blind eye. At this time, it will be beneficial to everyone to give the other party a step down China is now a WTO country, so if we start from the spirit of globalization and engage in civil technology cooperation, there is nothing to blame, right? You still know how to play with capitalism... After a long time, Chang Haonan put the materials back on Ding Gaoheng''s desk and sighed in a tone of shame. ?This sigh of emotion is not only an invitation for cooperation in front of us. ??It is also about some memories before rebirth. It is hard to imagine that France and Germany, which were committed to European integration in the 1990s and openly opposed the Iraq war in 2003, have declined at a rapid pace in the following 20 years and almost completely lost their autonomy. ?Including China, many countries, including China, had pinned their hopes on the "joint European Union and the United States" strategy, which naturally came to nothing. In this life, although the exchange rate of the euro is much stronger, at least compared to the US dollar, it has never fallen below the 1.0 mark, but obviously we cannot relax our vigilance because of this. Independence and external cooperation must be grasped with both hands, and both hands must be strong. Only in this way can we truly be invincible. "finish watching?" Ding Gaoheng raised his head and looked at Chang Haonan: Tell me what you think In this case, you must express your stance first. Therefore, Chang Haonan immediately replied: We fully support the decision of our superiors! Ding Gaoheng smiled softly, stretched out **** and tapped on the table: You have always played the leading role in this collaboration. So, whether you want to deepen it further depends on your attitude. This is where we need to ask for opinions. Chang Haonan also stopped beating around the bush: The other partys conditions... are still attractive, especially the day and night laser targeting pod, which happens to be a relatively scarce technology in our equipment system. Now relying solely on TV-guided and radar-guided munitions is not a long-term solution. So if their demands are not too excessive, I would still prefer to continue to cooperate. ?In this timeline, China has not introduced the Su-30MKK and Su-30MKK2 models, and has not been exposed to the Russian-made "Peregrine E" laser targeting pod. Although a part of KAB500L/KAB1500L was imported for testing, the target aiming part can only be completed by the laser target designator of the ground reconnaissance unit. Not only is it not flexible enough, but it is also difficult to direct targets far away from the front line or even behind enemy lines. So currently, the two TV-guided weapons, KAB500KR and KAB1500KR, account for the absolute majority of guided munitions. After opening the bus interface, it can be directly connected to the JH 7A. ??And having said that, even if you can get the Peregrine E, its performance is really mediocre. ?Even later the Russian army itself introduced legal Damocles pods. The exported Su 30 series almost has it as standard equipment. ?Looking at it this way, it seems that we have reached the same destination through different paths... "As for the detailed conditions, I guess they haven''t come up with a result yet." Ding Gaoheng shook his head helplessly: The news they have disclosed so far is mainly to send more technical personnel to directly participate in the upgrade of the M88 engine. If thats all it is, thats easy to say. Chang Haonan agreed almost without hesitation: The completion and improvement of M88 is the responsibility of Comrade Liu Yongquan, deputy chief engineer of Turbofan 10. What is Comrade Yongquans ability? It happens to be everywhere, and it allows the French to see some new things, but not too muchjust think of it as a practice for him. This description made Ding Gaoheng couldn''t help but smile: Then this matter will be approved in principle. The situation has changed, and I never thought that one day we would be able to guide foreigners in engine design... ??As he spoke, he picked up a pen and wrote something down in his notebook. Originally, todays topic should have ended here. But when Chang Haonan was about to get up, he suddenly remembered something else. So he sat back again: Director Ding, I remember that in October last year, Director Luan Wenjie said that there was a marine resource satellite project. After the hardware development phase is completed, a new satellite-based data processing algorithm needs to be adapted. But half a year has passed and he seems to have never contacted me? You mean Ocean One, right? Ding Gaoheng put down his pen, and his joyful expression sank slightly: The hardware development process encountered some resistance. Several hydrology-related sensors needed to be ordered from the United States and Canada, but they were all canceled for various reasons. Currently, only 10-color ocean water color scanners can be produced domestically in a short period of time. There are currently no domestic alternatives for the others, so the Fifth Aerospace Academy is trying to find other suppliers, which has delayed some time. Obviously, the "various reasons" here are just excuses. The real reason must be that someone is obstructing it. Ocean surveillance satellites are indeed too sensitive. After a slight pause, Ding Gaoheng leaned his upper body on the back of the chair and continued: The Americans have been fighting the Soviet Union in this regard for decades, and it is difficult to hide it from them easily. ?Hyangyang-1 alone is naturally unlikely to pose any huge threat. But if it is regarded as the starting point of Chinas ocean monitoring system, then it is not difficult to understand the other partys vigilance. "It seems that the son of our old friend is not very friendly to us..." Chang Haonan''s tone contained a hint of joking, but there was not much pressure to be heard. After all, he has experienced these scenarios once. ?Furthermore, in this generation, due to the improvement of China''s own development level and the stronger restraint ability of the European Union, the Americans have restrained their actions a lot. No way, its a strategic opponent. ?Perhaps influenced by Chang Haonans attitude, Ding Gaohengs demeanor also relaxed a lot: This year... In fact, since the second half of last year, there have been very frequent actions. Not only in the field of technology, but also in agriculture, and in finance, which is an area where we have always been weak, and we have suffered some losses. It can be considered as expected. Chang Haonan gently rubbed his forehead and replied: Joining the WTO brings opportunities and challenges. If all the benefits are taken by us, we may not be able to join the WTO from the beginning. Thats true Ding Gaoheng nodded, agreeing with Chang Haonan: In addition, since last month, the frequency of probing of our surrounding areas by US military reconnaissance planes has been increasing. Fortunately, the navy and air force have responded appropriately and handled everything reasonably well..." Hearing this, Chang Haonan suddenly turned his head and looked at the calendar on the wall. March 29, 2001. In fact, considering that the current equipment level of the People''s Army Aviation Force is completely different from that of the previous generation in 2001, it is not necessarily what will really happen. ?However, his mood is still quite complicated. On the one hand, it is inevitable to have some worries. ?On the other hand, I am a little lucky. The right amount of pressure from across the Pacific shows that the timeline is not completely out of control... (End of this chapter) Chapter 890 Teach academicians a lesson Chapter 890: Teaching academicians a lesson The first half of April was generally calm. ?After proving through the principle prototype that picosecond-level pulse laser can indeed achieve controllable non-thermal processing, the most important thing is naturally to start producing an engineering prototype. Since the specific application environment and hardware layout must be taken into consideration, the engineering prototype cannot be simply put up on a shelf like the principle prototype. Its about getting as close to the final product as possible. This also means that the production process will be relatively long. Especially some of the equipment needs to be ordered from abroad. The efficiency of European enterprises can only be said to be understood by everyone. Hence, Chang Haonans project has also entered a tepid stage. ?But this is not a bad thing. After the work intensity of the entire project team decreased, he finally got the opportunity to discuss the idea of ??"phase control of antenna array elements with photoelectric signals" with Academician Hou and Huo Penghua. In the end, several people came to a unanimous conclusion. At least in principle, the idea of ??optical beamforming networks is feasible. What Chang Haonan wants is this "possible in principle". The subsequent problems of system model and system theory can be solved by him. Going forward, the Electronic Technology Group will be concerned about the specific implementation. Originally, Chang Haonan was planning to go to Luzhou in person. ??As a result, I called and learned that Academician Wang Xiaomo will go to Beijing for a meeting at the end of April. It just saves you the trouble of running around. ?Although it is not a serious meeting, it is still a serious academic exchange, and it is definitely not appropriate at the dinner table. So, Chang Haonan simply chose the meeting place in the conference room of the main building of the New Torch Laboratory. You chose this place well. After getting out of the car, Wang Xiaomo tightened her leather jacket, looked around and commented: The environment is good, not far from the city, but not too noisy. Its a place for academics. ??The fifth ring road in Beijing, although most of it is open to traffic at this time, is still a bit desolate overall. ?However, on the contrary, it gives the Torch Laboratory a bit of a paradise feel. Chang Haonan himself is very fond of this place, so he is not modest: How do you say that? Its far away from the academic circle, but close to the academic circle. This is the kind of place youre talking about. This is the first time Ive heard this statement. ?Wang Xiaomo followed Chang Haonan up the steps of the main building: But the summary is really in place ?Walking and chatting along the way, the two soon arrived at the door of the conference room on the top floor. A few days ago, Chang Haonan had already started preparing the required information here. Therefore, when Wang Xiaomo pushed the door open, he first saw several blackboards filled with formulas and circuit model diagrams. This situation should have been more suitable for PPT. But it is too troublesome to make PPT. Leave it to students to do, but students dont understand. You cant let Academician Hou work as a coolie for him, right? So, Chang Haonan was lazy and moved all the blackboards he had written down during the discussions and calculations in the previous days. "This is" ?Suddenly being in a sea of ??mathematical symbols, I am afraid even Newton or Gauss would be confused for a few seconds. ?However, Wang Xiaomo was mentally prepared after all, and recovered quickly. "Last time we met in Nanzheng, I guessed that there must be something hidden in your kid''s head..." While he found a seat with a good view and sat down, he half-jokingly said to Chang Haonan: Come on, lets see what new tricks we come up with! Looking at Wang Xiaomo who was ready to take notes, Chang Haonan took off his coat and then loosened the top button of his shirt: This is a new idea that I only came up with after listening to your introduction last month. ?He said and went straight to the first blackboard: "You told me in Nanzheng that when the phased array radar performs wide-angle scanning, the radar''s transit time and aperture effect will cause the instantaneous bandwidth of the signal to be limited, and sub-array delay or unit phase shifting needs to be used. structure to improve this problem. However, the real-time delay lines of traditional microwave waveguides or cables have large losses, strong dispersion, narrow frequency bands, and excessive volume and total weight. I just happened to be working on a laser processing project recently, which is to use optical fiber links to replace cables to transmit signals, so I was thinking about whether optical fiber can also be used in radar. ??Wang Xiaomo held his chin with one hand and tapped a ballpoint pen rhythmically on the cover of his notebook with the other hand. This is his habitual action when thinking. Simply using optical fiber for TTD is not a particularly new idea. ??While Chang Haonan finished speaking, Wang Xiaomo slowly spoke: I know that about 10 years ago, the American Hughes Company tried this method, but there were too many photoelectric conversion processes in the middle. In the end, it was said that there was an extra 40 decibels of signal loss, and in the end it was abandoned. Chang Haonan had already guessed that the other party would mention this case and nodded immediately: I have also found information on the project you mentioned. "However, although they used optical fibers for TTD, the process of switching each delay channel still used an electrical switch consisting of multiple lasers plus an n1:n2 fiber coupler plus multiple photodetectors. Each switch structure is A total of 32 groups of photoelectric conversion processes are required, which means it will be noisy." Hearing Chang Haonan hit the point directly, Wang Xiaomos hand holding the pen stopped: So...can you solve this problem? "certainly." The former showed a smile: "So I thought, since we have already considered using fiber optics, it is better to go all the way to the end and build the entire back-end into a set of optical beam forming networks, and finally use photodetectors to demodulate and recover radio frequency or microwave signals to emit electromagnetic waves. In this way, only one electro-optical-electric conversion process is needed to realize an optically controlled phased array radar..." Speaking of this, Chang Haonan turned back and pointed to the blackboard behind him: For example, to switch the delay channels just mentioned, purely optical methods can be used, such as fiber Bragg reflection grating, fiber dispersion prism, or spatial optical path switching. In short, there are many ways to completely avoid those 32 sets of photoelectric conversion..." Using the light control array directly...can avoid this loss problem ?Wang Xiaomo didnt know when he had sat up completely straight: But that involves a new theoretical system... Among other things, the delay models of optically controlled arrays and electronically controlled arrays are very different. This happens to be the part Im good at. ?Chang Haonan was already excited at this time and strode to the second blackboard: Lets first use a relatively simple one-dimensional line array as an example. "Assuming that the number of units contained in each sub-array is ns=N/M, then each unit can be expressed as ail, where i is the sub-array serial number and l is the antenna unit serial number inside the sub-array. In the actual array, each sub-array configuration A delay unit that can provide 2^b1 time shift units. Each unit in the sub-array has a b2-bit phase shifter, which is used to complete the phase shift in the 0-2 phase range..." For any direction in space, the spatial time difference between any adjacent units is =dsin/c, and for the operating frequency f, the corresponding phase difference is =kdsinȡ By the time he got to this point, Wang Xiaomo had already opened his notebook to a blank page and was writing furiously ??Although he is not from a theoretical background, it is not difficult to see that Chang Haonan is constructing a mathematical model of a light-controlled time-delay phase-controlled linear array. As long as it is slightly generalized, it can become a planar array model. "The phased array antenna can not only be regarded as a spatial domain filter, but also a time domain filter whose transfer function varies with different spatial directions. Suppose the signal input to the first unit of the uniform linear array is s(t)= e^(jt), then the transfer function of the optically controlled phased array in the pointing direction is H()={Msin[ns/(2c)]dsin0(-0)}/[sin{(1/2c) ]dsin0(-0)} As the explanation gradually progressed, Chang Haonan began to add some new content on the blackboard from time to time. Some of them were omitted and not written down at the time, and some were newly thought of during the calculation process. The structure of the entire mathematical model gradually became clear. ৡ ??Wang Xiaomo wrote down the last character on the current blackboard as quickly as possible, and then stopped writing. Judging from the total number of blackboards in this conference room, Chang Haonan''s introduction is probably only about half done. ?However, he can now see a lot of valuable information from it. In other words, we only need to determine three key values: the spatial delay operator vector of the array, the beam pointing phase shift vector within the array, and the delay operator vector within the array, to complete the signal model simulation of the optical control array? This is obviously much simpler than he, or any other estimate except Chang Haonan. In other words, even from an engineering perspective, this idea of ??using photoelectric signals to control phase differences for scanning is fully potential to be realized! (End of this chapter) Chapter 891 Multi-band phased array antenna Chapter 891 Multi-band Phased Array Antenna From the perspective of signal processing algorithms, this is indeed the case. ?Chang Haonan took two steps back and stared at the blackboard for a few seconds before answering: But shouldnt this have been known before...? ?Wang Xiaomos question was a bit beyond Chang Haonans expectations. Because he had not expected that the other party or other researchers in the field of radar engineering would focus on this. "Before?" ??Wang Xiaomo turned to look at the blackboards he had just talked about, with some confusion in his tone: But you havent written anything related to this model expression before? NoIm not talking about this before. Chang Haonan waved his hand: I mean...before today. Isnt it a consensus that the mathematical model of an optically controlled linear phased array...or any linear phased array includes three vectors? This question did not receive a response. ??But its not difficult to see the answer from Wang Xiaomos eyes Is it so? ?Chang Haonan originally thought that he had only derived a model expression when the independent variables were known. The result is that tall buildings rise from the ground... ??If it is left to the world of theoretical mathematics, then if he wants to get the complete process, he must first prove that "the model only contains three vectors". Fortunately, the engineering field doesnt really care about these minutiae. As long as it matches the actual situation, it wont be a big problem. So, after this short interlude, Chang Haonan''s introduction went on smoothly. ?Its just that the following content is much more logical in comparison... The pulse signal sent by the radar system will be affected by factors such as target scattering and propagation path during the propagation process, resulting in the time domain and frequency domain broadening of the echo signal. Therefore, in order to improve the resolution, the echo signal needs to be pulse compressed. This process is usually accomplished in the time or frequency domain using matched filtering or correlation signal processing..." ?Talking and talking along the way, and occasionally adding some extra content on the blackboard. Finally, after more than an hour, he came to the last blackboard. ?At this time, Wang Xiaomos writing had already stopped. Compared with the previous part, although the latter half is larger in terms of pure calculation, it is much easier to understand because there is no such exaggerated jump. This also gave him more time to think about some issues in the field of radar engineering. "...The pulse compression output result of the array can be obtained by convolution from the above formula: s(t) after matching the matched filter, the output is s''(t)=(n=1, N)e^(j) {e^[j2(f(t-(t0-))+u(t-(t0-))T)-e^(j2f(t-(t0-)))]} ?Chang Haonan pointed with his finger to the lower right corner of the blackboard, to the end of all the calculations. Then he turned around, took two steps forward, and sat back at the conference table. I then opened the laptop that had been on the table since the beginning but had never been opened: Based on this model, I conducted numerical simulation calculations on the pulse compression of the optically controlled phased array and the fully phased phased array under a typical situation. He turned the computer 180 and pushed it in front of Wang Xiaomo: It can be seen from these two result graphs that the maximum value of the pulse pressure of the fully phase-shifted phased array is 4.21dB lower than the maximum value of the optically controlled delay array, which means that the signal-to-noise ratio is lost by 4.21dB. "In addition, the 4dB width of the pulse pressure of the sub-array delayed optical array is 5.12ns, the side lobe height is -13.84dB, and the peak time position is 49.9989s; while the 4dB width of the pulse pressure of the fully phase-shifted array is 7.088ns, and the side lobe height is -13.84dB. The lobe height is -26.32dB and the peak time position is 49.9952s. "Therefore, the main lobe of the LFM signal in the fully phase-shifted array is broadened after the pulse pressure, the peak time position deviates greatly, and a certain signal-to-noise ratio is lost. In addition, the spectrum structure of the broadband LFM signal of the fully phase-shifted phased array is no longer a rectangular distribution. , which results in lower-than-expected resolution after pulse compression. ?Looking at the realistic normalized amplitude-time curve on the computer screen, Wang Xiaomo did not speak immediately. There is no doubt that from the results obtained by Chang Haonan, the optically controlled phased array has advantages that traditional phased array radar cannot match in terms of mechanism. Especially in the field of wide-angle scanning, which he had been paying close attention to before. While waiting for the computer to turn on and open the document for a few minutes, Wang Xiaomo had already roughly calculated several results on his notebook. Conservatively estimated, thanks to the broadband characteristics and low loss of optical fiber TTD, the available scanning angle of the single-sided optically controlled phased array will be expanded to 75 or even 80. This is a huge improvement for fixed single-sided or double-sided array antennas. but Its not big enough. Almost as soon as he saw the simulation results on the computer, he had a more radical idea. Mr. Chang. ?Wang Xiaomo put the ballpoint pen aside: What if we dont pursue expanding the scanning angle? Huh? ??? This question made Chang Haonan stunned. You said you needed a wide-angle scan before, and I calculated the results for you, but now you dont need it anymore? What''s going on? ?Seeing the ghostly expression on his face, Wang Xiaomo quickly continued to explain: "What I mean is that since the scanning angle and instantaneous bandwidth are a pair of contradictory indicators, then since the optically controlled phased array radar can achieve a large scanning angle with the same bandwidth, can we also change the idea and achieve the same scanning angle with the same bandwidth? high bandwidth? Hearing this idea, Chang Haonan first lowered his head and thought. Then he frowned slightly. ?Then his eyes flashed. It should be...yes! ?After all, he is not a radar major, and the calculation just now was only a theoretical derivation from the mathematics and physics levels, so his ideas on the application level are actually a bit limited. When he was in Nanzheng before, Wang Xiaomo had been talking about the problem of wide-angle scanning, so his calculation results had been advancing in this direction. But now that the other party reminded him, his thoughts immediately opened up ?The bandwidth of the radar is not the same concept as the bandwidth of the network. It is not a unit of speed, but a unit of frequency. Refers to the frequency bandwidth that the radar antenna can adapt to under normal working conditions. We often say that a radar "works in such and such a band". This band range is the bandwidth. In most cases, the back-end module of the radar does not matter the frequency band. But the adaptability of the transmitting/receiving antenna is very poor. So it will generally show narrow-band characteristics. ?However, as Wang Xiaomo just said, optically controlled antennas can completely overcome this problem. China''s main equipment in the future, whether it is the rotatable double-sided/single-sided array of the early warning aircraft or the ground guidance system, or the four-sided array used on the warship, the demand for wide-angle scanning can be summed up as "it''s best to have it, it''s okay if you don''t have it" ". But broadband is another story. To exaggerate, dual-band or even multi-band detection can even be achieved through the same front! If the scanning angle is kept at 120 or 90. ?Thinking of this, Chang Haonan pulled the computer back to him and started typing on the keyboard rapidly. The complex simulation process just now was naturally completed on a supercomputer. Here is just a screenshot of the results. However, if the bandwidth and scan angle are simply calculated, the performance of the PC is still sufficient. ?As time passed, Wang Xiaomo, who was sitting opposite, finally lost his temper and walked around the desk to come behind Chang Haonan, hoping to see the results as soon as the calculation was completed. A series of calculation commands were entered by Chang Haonan, but the calculation process itself did not last too long. The results were quickly displayed on the computer screen. Wellthe broadband performance in different bands is actually somewhat different. ?Chang Haonan read it quickly and then concluded: "In general, for the S-band and adjacent frequency bands commonly used in search radars, if the search range is controlled at 60, the frequency range can probably cover about 2.7Ghz, which is basically a complete frequency band plus a less Complete band. If you adjust the range to 45, the frequency range can cover the 3.7Ghz level, which is two complete frequency bands, or one complete band plus two less complete bands..." For higher frequency ranges, the available width will be slightly lower. For example, for the X-band, which is common in fire control radars, even if the scanning range is controlled at 45, it can only cover 2.9Ghz ?Wang Xiaomo clenched his right hand into a fist and lightly knocked on his chest. Obviously, this result is a bit too surprising for the old comrades. After a slight pause, he opened his mouth and said: It doesnt matter. Fire control radar has higher requirements for resolution. The pursuit of large bandwidth may not be as meaningful as large scanning angle. We should focus on the search radar. "For example, the sea-based 346 radar, which has almost completed testing, operates in the S-band, but the guidance and command system of the Haihongqi-9 air defense missile works in the C-band. Originally, we planned to install an additional set under the main radar array. Transmitting and receiving antennas, but if the radar can be made to work in S-band and C-band at the same time, this problem can be omitted..." Chang Haonan thought more long-term: "The ship-based four-sided array only needs a working range of 45, so that the radar can even work in the three bands of L, S and C at the same time, such as 1Ghz to 4.7Ghz. In this way, the 346 radar can even be directly used to replace the 517A radar, and a certain degree of Anti-stealth and ultra-long-range detection capabilities The 517A is the model with an antenna shaped like a clothes rack on the back of the 052C/D destroyer. It is an old-timer that has been in service from the 1950s to the 21st century. ?Although the overall performance has lagged behind, due to the nature of the P-band, it still has certain anti-stealth and long-range warning potential. This is incomparable to pure S-band radar in principle. So it was changed and continued to be used until the later 052D and even 055. But if the 346 radar itself can operate in the L-band, which has properties similar to the P-band, then the demand for 517A will be greatly reduced. ?Wang Xiaomo and Chang Haonan looked at each other and saw the huge potential of this technology in each other''s eyes almost at the same time. (End of this chapter) Chapter 892 Seize the early warning aircraft market Chapter 892: Seizing the early warning aircraft market ??In addition to radar in the traditional sense, the broader application scenario of optically controlled phased array antennas seems to be electronic reconnaissance equipment. Of course it can also be said to be passive radar ?Antenna is not only used to transmit signals. Can also be used to receive signals. In order to adapt to different signal frequency bands, traditional electronic reconnaissance equipment is usually surrounded by antennas of various styles and sizes. Hence, the appearance of electronic warfare units is often relatively... Abstract. ?Especially for electronic warfare aircraft where space is tight. ??If only the sides, back and belly of the fuselage are protruding, it will be considered relatively elegant. Of course, for military models, being ugly is not a problem. The problem is that after paying a huge price in terms of appearance, there are still trade-offs to be made in terms of performance. Unless the carrier platform is really large, it will be difficult to cover all commonly used signal frequency bands given the limited size and weight. ??But if two or even several antennas can be integrated together, it will obviously be a huge benefit for electronic warfare aircraft. ?However, the ecstasy is short-lived after all. A new technology, especially a disruptive new technology, often encounters difficulties from theory to implementation. ?Chang Haonan and Wang Xiaomo were both engineers after all, so they quickly began to consider more specific practical issues. After thinking for a while, the latter spoke first: "In order to implement this multi-band radar, although antennas with large bandwidth operating characteristics are key technologies, other aspects, such as transmitter/receiver design and target recognition algorithms under the interaction of multiple bands, will also take time. Come and develop. So I think the first thing to do now is to build a principle prototype and go through the whole process. The principle prototype must be developed, but the problem is not just technical... Chang Haonan also added: The optical switches I mentioned at the beginning, whether they are fiber Bragg reflection gratings, fiber dispersion prisms, spatial light modulators and controllable reflectors, are all highly precise optical components that either cannot be produced in China at all, or are high-quality domestic products. The rate is very low and cannot meet the requirements of industrialization at all..." Actually, lets not talk about this. Even the most basic optical fiber can only be regarded as solving the problem of localization on paper at best. In actual applications, imported models are still the main ones. ?His team has just begun to produce engineering prototypes of ultrashort pulse lasers, and is naturally familiar with the conditions of these optical or optoelectronic components. Pulse laser processing equipment can barely be regarded as scientific research equipment, and in fact it is only semi-photoelectric. Most of the consumables are still mainly electrical components. The problem of using imported optical fibers alone is not big. ??But no matter how whitewashed the early warning aircraft and search radar are, they are purely military equipment. Even if the Europeans use the spirit of capitalists to sell slings and export with their eyes closed, the People''s Liberation Army may not dare to rely entirely on Western models for such a core component. Moreover, although the two men have been using the 346 radar as an example, in April 2001, the basic version of the 346 has basically completed the national qualification test, including its carrier 052C, which is also close to being designed, and the power system is temporarily and Like the 052B that has already started construction, it uses imported UGT25000. ?With two models of such high perfection, and the current military struggle situation is not optimistic, it is impossible to stop and wait just because there is a hint of new technology. In other words, at the shipboard radar level, the concept of this optically controlled phased array, optimistically speaking, will have to wait until the next improved version of the 346, and may even wait until the second improved version in the future. So, we must find an additional opportunity to conduct a round of technical verification. What if we make an export model? Chang Haonans thoughts are getting wilder: "Let''s take it step by step. Let''s put aside the multi-band issue first. The entire small T-type antenna phased array radar is based on its 150 wide field of view and lightweight and low cost. Moreover, it is not for our own use anyway. The core element is It doesnt matter whether the device is domestically produced or not. Maybe foreign users have their own import channels. Compared to simply focusing on technology verification and research and development, this is at least profitable, and domestic manufacturers or research institutes will have stronger motivation to make local substitutions in the future. Technology, as long as it reaches the stage of making money, it can actually be easily recycled later. If you are afraid that you will see only input but no output, then even if it is a state-funded support, you must weigh it first. Furthermore, if an industry only relies on state funding for development, it is difficult to say what prospects it has. Therefore, Chang Haonans usual path since his rebirth can be summed up as first opening up the general industrial cycle through key technologies or models, and then going back to gradually improve the overall domestic level. This time is no exception. Small early warning aircraft ?Wang Xiaomo touched his chin, which had turned white with stubble: What about the aircraft platform? Logically speaking, this should be Chang Haonans most professional field. However, he waved his hand nonchalantly: "This is not important." Since the goal is to generate income through exports, lets talk business. Facing Wang Xiaomos questioning gaze, Chang Haonan continued to explain: What we are exporting is not an early warning aircraft, but a separate airborne early warning and control system. Of course, if users are willing to use it, we can also provide MA60 or a complete solution for the C808 platform. "But if users want to be more common between aircraft and civil aviation to reduce logistical pressure, then we are not opposed to cooperating with other manufacturers and moving our early warning system to other people''s models, such as Airbus A320 or regional airliners. , or even a slightly larger business jet. The optically controlled phased array also has another modest advantage, which is that it is not very sensitive to the physical size of the radar. This means that a model echelon of difficult size can be produced at a relatively low cost. Of course, as mentioned before, for an aircraft that is too large, the advantages of wide field of view and lightweight are not obvious, and Chang Haonan is not ready to take advantage of multi-band for the time being. Hence, the upper limit should be about 200 for the Air Police. As for personal use models It is better to run quickly with small steps first. The Air Police 2000 carried by the C909 aircraft is probably the same as the 346, and will not be able to tolerate this latest technology. Airborne early warning and control system ?Wang Xiaomos eyes suddenly changed: Like rieye in Sweden, or...Felcon in the Kingdom of David? ?Philcon of the Kingdom of David ?Although the Ring Project eventually got back the advance payment, the IL-76 was also incorporated into the transport aircraft force after being dismantled. ?However, the Kingdom of David blatantly breached the contract at a critical moment, and also brought personnel from other countries to have close contact with Chinese equipment without permission. ?This matter is not so easy to get over. I wrote it down every stroke in the small notebook. The reason why there has been no action is because there was really no way to directly cause any trouble to the opponent before. But now Felcon is actually a model focused on the international market. There are also model echelons of different sizes. It also mainly sells equipment rather than complete machines... ?This is a serious competitor. So, if we can beat Falcon in the arms sales market... ??Although it is difficult to say that it will have any crippling impact on the Kingdom of David. But at least its an opportunity to vent some bad anger. As for love to set eyes... ?Then I can only say sorry. In this case, we may also need a loud name. Wang Xiaomo said: Its best if its a pun in both Chinese and English. Ive already thought about this. ?Chang Haonan looked at a paper on the computer screen: Its called gaoming. "Um?" ?Wang Xiaomo couldnt understand the reason for choosing this name for a while: "Why?" Gao Ming is the clairvoyant in Fengshen Yanyi, which is consistent with the function of the early warning command system. Chang Haonan replied: In addition, it can be translated directly into English according to the literal meaning. Literally...highlight? Chang Haonan had a pleasant smile on his face: Thats right, highlight (End of this chapter) Chapter 893 No, more advanced Chapter 893 No, more advanced ??This is a meme that is easy for scientific research dogs to understand. In addition to being used as a verb to highlight, highlight, and emphasize, there are also some academic journals that require authors to sort out the eye-catching key points in the content of the paper and write them at the beginning of the article, which is also called highlight. Even if you have never engaged in scientific research, this word is actually the same as the Chinese name "Gaoming", and it is easy to connect it with the mission characteristics of the early warning aircraft. In short, it fully meets Wang Xiaomos requirements for Chinese and English puns. ?Of course, what the name is, after all, is not the point. For a project with such high new technology content that it is likely to exceed 70%, the most critical thing is to be able to proceed step by step. Otherwise, it is easy to lose focus and end up in a mess. Hence, although this is an almost entirely foreign trade-oriented model, it still needs support from higher-level units. ??It will be difficult to coordinate the power of other systems even if the two companies of Dianke Group and Aviation Power Group can come up with a certain amount of funds. Furthermore, the technology of optically controlled phased array radar will definitely ultimately serve Chinas own national defense construction. Foreign trade models are just a by-product of the technical verification process and serve as a source of revenue and expenditure, as well as the collection of user data. Therefore, Chang Haonan and Wang Xiaomo hit it off immediately and compiled a feasibility report as quickly as possible, explaining the application prospects of the idea of ??controlling microwave signals by optoelectronic signals and optoelectronic components from both theoretical and engineering aspects. Then they submitted it jointly. A few days later. Commission of Science, Technology and Industry for National Defense, in the directors office. Ding Gaoheng has been staring at the twenty-page report on the table for a while. That''s right, just look. It is not reading. Because I havent turned a page for about twenty minutes. What''s more, he has read this report over and over again no less than ten times since he got it. Except for the parts other than mathematical formulas, it might be an exaggeration to say that I can memorize them backwards and forwards, but if I memorize them straight on, I guess it wont be a big problem. Before serving as director of the Commission of Science, Technology and Industry for National Defense, Ding Gaoheng had been engaged in the research and development of inertial devices and navigation systems for a long time. Although it sounds unrelated, this research direction actually involves dealing with other detection systems including radar. As for the control system and control theory, it can be considered as a specialty. So, he used to think that he knew a little bit about radar. Today, however, he had doubts about this self-perception I seem to... I dont know much about radar either Comrade Xiaomo, Comrade Haonan. Ding Gaoheng sat up straight, looked away from the report on the table, and looked at the two people on the sofa on the other side of the office: I know that a few years ago, the United States proposed a research and development plan for a next-generation destroyer called DD21. A key part of it is DBR, a dual-band radar. Is our multi-band radar... similar to the American DBR? DD21 is actually the later famous DDG1000 Zumwalt class destroyer. It is actually still in the final stage of project bidding. Anyone with a little discernment can see that there is a high probability that the plan proposed by Boeing and Raytheon will win. On paper, the various technical and tactical indicators of this new destroyer are quite advanced. After all, its 2001 Even though the United States in this timeline has suffered many additional setbacks in the military, political and economic fields compared to previous lives, few people still doubt its strength in the technological field. Even the most foresighted person would find it difficult to imagine that the industrial level of the United States would experience an extremely outrageous cliff-like decline after entering the 21st century. If anyone says at this time, the U.S. militarys package of next-generation equipment plans ranges from LHX Comanche helicopters, XM2001 Crusader self-propelled artillery, JSF joint strike fighters, to CG(X) cruisers, and then to DD(X) destroyers , LCS Littoral Combat Ship... all will end hastily or come to an end, and I''m afraid they will be directly regarded as crazy. In short, right now, when everyone is developing new equipment, they will still unconsciously benchmark it against similar concepts from the US military. but ?Chang Haonan is not among them after all. The dual-band radar of DD21 actually combines an S-band and an X-band radar on a common information processing back-end device, which is equivalent to using one set of back-ends to control two front-ends at the same time. Our multi-band radar concept uses the same set of hardware from the front-end antenna to the rear-end I/O equipment to realize the collaborative work of two or more bands. Sofrom a principle perspective, it is much more advanced than DBR. This description made Ding Gaoheng''s heart beat a little unsatisfactorily. After all, I am already 70 years old, so I still cant bear to encounter such a big surprise: So, should we transmit electromagnetic waves of several different frequency bands at the same time, or should we arrange multiple sets of transmitters/receivers and then flexibly switch to different bands according to needs? This mainly depends on the specific application scenario. Chang Haonan explained: Because signals of different frequencies can be separated, it can be technically achieved. Its just that transmitting and receiving signals in multiple bands at the same time will put a lot of pressure on the back-end information processing process, so it is more suitable for platforms that are not sensitive to size and can deploy sufficient computing power, such as large early warning aircraft and fixed radar stations. , radars on large and medium-sized ships. For fighter jets, vehicles, or small and medium-sized ships, their back-end processing capabilities may be limited. They can also only work on the same frequency band at the same time and then switch as needed. In addition, even in the latter case, there is no need to set up multiple transmitters/receivers. After Chang Haonan finished explaining, Wang Xiaomo continued to add: The radar front end can be made exactly the same as the previous one by using adjustable frequency-selective permeability materials on the radome. For example, I can transmit X-band and C-band signals at the same time. When long-distance detection is required, the radome can selectively pass through the C-band and absorb the X-band. When precise locking is required, the reverse is done. Originally, according to Wang Xiaomos understanding, for fighter jets, field of view should be more important than bandwidth. Chang Haonan said, however, that the phased array radar of a fighter jet can also be deployed on a rotating base to expand the effective illumination range by changing the angle. However, the ultra-long-range detection capability brought by the C-band is beyond the reach of traditional airborne radar. ?However, the size of the fighter jet makes it difficult for it to process wide-band signals at the same time. ??Its not even just a limitation of computer power. Hence the second concept of selectable frequency. Then...I guess theres nothing to hesitate about. Ding Gaoheng said as he closed the report: Major special funding needs to be approved by superiors before it can be allocated. However, at the Science and Technology Committee level, we can first allocate part of the funds from this years advanced technology research and development fund for your use. In addition, if you need to coordinate units in other systems, you can report it directly to me, or to the new deputy director Li Zhongyi, who is currently responsible for liaison work outside the system. (End of this chapter) Chapter 894 Pave the way for the future Chapter 894 Paving the way for the future After talking about business, Chang Haonan and Wang Xiaomo were ready to leave directly, but after a slight hesitation, Ding Gaoheng said he would let them stay for a while. Just when the two were confused, the latter picked up the phone on the table and dialed a number. A few minutes later, a middle-aged man with a stocky build, a kind face, and hair that was the envy of his peers knocked on the door and walked into the office. Director Ding, are you looking for me? "right." Ding Gaoheng raised his hand and gestured in the direction of the sofa: These two are Chang Haonan, the chief planner of the Aerospace Power Group, and the deputy general manager of the Electronic Technology Group and the director of the overall research institute. Under normal circumstances, when introducing multiple people, they must be introduced separately. ?However, the age difference between Chang Haonan and Wang Xiaomo is indeed too big. If you have heard either of them before, it will be difficult to mistake them. In fact, before Ding Gaoheng opened his mouth, the two of them had already guessed the identity of the visitor. So he had already stood up politely. Sure enough, Ding Gaoheng continued: This is the Li Zhongyi I just mentioned, Deputy Director Li. Hello, Deputy Director Li. Hello everyone, Ive been seeing these two great names for a long time ??Li Zhongyis face is relatively round, and he is a little fat. When he smiles, his eyes hidden behind his spectacles almost completely narrow into slits: In 1997, Academician Wang was awarded the Ho Leung Ho Lee Foundation Award. I happened to be the person in charge of Yizheng Chemical Fiber at that time, and I was sitting below..." As for Professor Chang, before I took up the post of the Science and Technology Commission last month, I heard my colleagues from Huaxia Petroleum say that he helped a lot in the bidding process for the West-East Gas Transmission ??The level of this opening is quite high. ? Even if you know that the other person is being polite, but what they say is reasonable and well-chosen, it is easy to close the distance between you and your heart. Cant say its a big help. Ding Gaoheng shook hands with the other party: I just helped make several mechanical models under typical geological conditions This is not a self-effacing statement on his part. In fact, there could have been further cooperation between Torch Laboratory and the China Petroleum Pipeline Bureau. As a result, during the project process, a series of new topics such as manifold learning algorithm and subsequent desert modification and remote sensing satellite systems were inadvertently introduced. The result is that although the other party is interested, Chang Haonan really does not have enough manpower. Having to put it aside for the time being. After a brief exchange of greetings, the three of them sat down on the sofa one after another. Ding Gaoheng, who specially called Li Zhongyi, spoke first: Ive thought about it and think it would be more appropriate for you to directly address the specific needs of the project just now. When this sentence came out, the other two people didn''t care. But Li Zhongyi, who was sitting next to him, suddenly flashed his eyes: I dont know...what specific needs do you two need? I will do my best to support you! Looking at the opponent''s posture, Chang Haonan and Wang Xiaomo had some guesses about the current situation. ?So, it took about forty minutes to explain the general situation to Li Zhongyi. After leaving Ding Gaohengs office, the two walked side by side on the sidewalk leading to the gate of the Science and Technology Commission. Comrade Haonan, Director Ding is paving the way for you... Wang Xiaomo was the first to break the silence. "Um?" ?This sentence made Chang Haonan stunned, and even subconsciously stopped and looked at the other party. ??I found Wang Xiaomo showing a meaningful smile, and also stopped. Ding Gaoheng was planning the departmental work after the Science and Technology Commission, which Chang Haonan could see The former has served as the deputy director of the Commission of Science, Technology and Industry for National Defense since 1982. If calculated up to 2003, it is equivalent to being in charge of the national defense industry for 21 years. This is an extremely special situation. According to the original timeline, the director of the Science and Technology Commission should be replaced at the end of 1996. ? It was only at the end of 1996 in this life that the aviation industry was undergoing drastic changes. In order to ensure the consistency of policies, his superiors allowed Ding Gaoheng to continue to maintain his original position. ?For this reason, they did not hesitate to establish the General Armament Department in advance and found a place for General Cao Gangchun. Originally, this situation should be temporary. When the situation stabilizes, the people who should be replaced will still have to be replaced. ?As a result, no one expected that this stage of drastic change was not a movie but a TV series. After it started, it would be one after another without ending. This situation is naturally something that superiors would like to see. So in order to continue to maintain policy coherence, the entire leadership team of the Science and Technology Commission did not move in 1998. Dante Gaohengs age is there after all. I will be 72 years old in 2003. ?Either retire, or raise half a level and find a job to use your spare energy. In short, it is impossible to continue to be in charge of the Science and Technology Commission. However, if a department has not changed its leader for more than ten or twenty years, its working habits and behavior will inevitably be influenced and shaped by this person. ?Especially, the Science and Technology Commission is still a semi-military unit. Hence, Ding Gaoheng has gradually downplayed his own sense of existence in the past two years. Otherwise, it would just be a matter of liaising with other departments, and there would be no need to hire a deputy in charge of this work. ?However, Chang Haonan has not considered the angle Wang Xiaomo just mentioned. Looking at the shocked Chang Haonan, Wang Xiaomo put his hands behind his back and started walking again: These three new deputy directors of the Science and Technology Commission, you should have had direct business contact with them, right? ?The former thought about it carefully and found that it seemed to be the case. Since last year, the leadership positions of the Science and Technology Commission have undergone a major change. The deputy directors were replaced by Zhang Hongbiao, Luan Wenjie and Li Zhongyi, who I just met today. Two are transferred from other systems, and one is from within the Committee of Science and Industry. You should know that from 1996, when he first came into direct contact with the Science and Technology Commission, he continued until this year. In the past five years, most of Chang Haonans work has been directly reporting to Ding Gaoheng. So the previous three deputy directors, he was basically only familiar with Huai Guomo, ?In the past six months, I have had direct contact with all three new employees at the work level. Especially Luan Wenjie and Li Zhongyi. ??This is most likely not a coincidence, but Ding Gaoheng''s intentional arrangement. In recent years, your role in the defense industry and even the entire industrial system has been visible to the naked eye. Wang Xiaomo continued. It cant be like this As soon as Chang Haonan spoke, he was interrupted by the other party: This kind of thing is seen by me, other colleagues, Director Ding, and superiors. You know it in your heart, so there is no need to be modest. But no matter how capable a person is, he still needs a suitable platform to have room to perform. "Of course." Chang Haonan nodded sincerely: If Teacher Du and Director Ding hadnt dared to give me a chance, I wouldnt have been able to achieve any great results on my own. So ?Wang Xiaomo straightened the messed up gray hair on his head: "Director Ding, or...maybe even a higher-up leader, wants to ensure that you have a suitable platform to display your abilities in the future." Hearing this, Chang Haonan suddenly had an idea. The main thing is that you are too young. The two people came to the car, but did not get on it immediately: On the one hand, in the state-owned enterprise system, age can still be handled on a special basis, but in the administrative system, it is impossible to raise it so quickly. It is too troublesome and against the rules. "On the other hand, the normal development trajectory of researchers is that by the time they are around 50 years old, they have accumulated enough achievements and their energy and brain power can no longer keep up with the high-intensity front-line scientific research work. At this time, they will switch to the administrative route and continue to perform. Advantages of experience. It turns out that your kid is not normal at all. You have accomplished what others have done in their lifetime before you were 30 years old. But if you were to switch to administration directly, it would be a pity... ?Wang Xiaomos tone was filled with emotion: In short, no matter who among the three becomes a regular employee in the end, one of the most important tasks must be to cooperate with your work like Director Ding. "Getting used to it early will be good for you, them, and the entire Science and Technology Commission..." ?Chang Haonan felt his temples twitching. Stimulate. Its so exciting. ?Lan Xinzhi came here once before before he went to take charge of the Equipment Industry Department. But that is just a director after all. this time I can only say that its really a bit too much. There has been a joking saying before that Chang Haonan is the "non-staff deputy director" of the Science and Technology Commission. He was worried about this for a while. After all, organizational things are sometimes not suitable to be joked about casually. But now look It seems to be a bit unfounded ??This is to ask him to work in the direction of "non-staff director"... (End of this chapter) Chapter 895 position in education Chapter 895 The status of education ?Although the principle of optically controlled phased array radar is very new, in the final analysis, it is still within the scope of the radar industry. Hence, most of the specific research and development work must still be left to the professional counterparts of the Electronic Technology Group. This is of course good news for Chang Haonan. It can reduce a lot of burdens. It is true that he is a workaholic, but he is not a masochist. If you can delegate non-critical specific tasks, you will definitely not refuse. Otherwise, it would be impossible for one person to handle multiple tasks at the same time. ?Furthermore, Chang Haonan doesnt even need to worry too much about external publicity this time In addition to being an expert in radar systems, Wang Xiaomo is actually an innate propagandist. In 1988, when he was still working in the 38th Institute of the Ministry of Electronics Industry, he relied on his sharp tongue and a radar model with only a brochure and no prototype, and he managed to steal 50 million from abroad. Investment comes back. You must know that the financial allocation for that model is only 20 million yuan. Of course, the research and development must have been successful later. Customers are also very satisfied. Painting cakes is not offensive in itself. ?Of course, some people only paint cakes but dont let people eat them. Thats another matter. In between the two projects, Chang Haonan finally got a few days of free time. Just when he was about to open the mailbox that was often crowded to see if there was anything interesting happening in foreign academic circles recently, half of his head suddenly poked his head in through the open door of the office. "teacher?" is Li Yabo. ?Chang Haonan had no choice but to take his attention away from the web page that was still spinning ??After experiencing many email explosions, Tang Lintian specifically asked the schools information technology department to allocate extra space to his mailbox. However, due to computer performance and Internet speed, it inevitably consumes a lot of time every time you open your inbox. Teacher, I received an invitation! Li Yabo walked in quickly and said excitedly. ?However, Chang Haonan was a bit unable to react when his student suddenly said such a sentence. Uh...you sit down first. After gesturing for Li Yabo to sit down, he realized what the other person was talking about: The invitation...is an invitation to participate in the C808s maiden commercial flight? In fact, Hufei had already mentioned this invitation to Chang Haonan, but he said at the time that he did not want to go back and forth, so he only attended the ceremony to celebrate the successful completion of the certification test flight last year. Later, the first delivery of the C808 was delayed due to delivery problems with engine parts, and the first commercial flight has been delayed until now. Chang Haonan almost forgot about it. "right." Li Yabo took out a beautiful envelope from his schoolbag with a happy face and handed it to Chang Haonan: So Id like to take two days off from you next week. The envelope has the two logos of China United Airlines and Hufei Group printed side by side. Due to the influence of "the military is not allowed to do business", United Airlines is currently separated from the Air Force system, but it has not yet joined China Eastern Airlines, but is temporarily operating independently in a somewhat awkward form. Estimated to be waiting for the next round of restructuring of the civil aviation system. ?However, it is precisely because of its independent operation that this airline is more daring to take the lead in many places. ?For example, the C808 printed on the lower right corner of the envelope was painted with complicated Olympic bid-themed paintings. Following closely in the footsteps of Qiong Province Airlines, this is the second batch of airlines that began to use large-scale fuselage painting. ?Because Chang Haonan has no regular schedule and often travels for long periods of time, Liu Chenchen is responsible for the Torch Laboratory''s leave requests and daily work such as approving small funds. Today, Li Yaboti came to see Chang Haonan. It was obviously just a way to ask for leave. ?The main purpose is probably to report to the latter the fact that I was invited - Even though the laser processing project has not yet been implemented into specific production areas, Li Yabo published a Nature article as the first author at the beginning of the year. ?These days, even in the eyes of companies, exchanging a sum of money for a paper in a super-top journal is definitely a huge profit. You should know that, excluding the three short reviews, in the whole year of 2000, Chinese scholars only published a total of four papers in Nature. ?The exposure alone and the content you can add to your year-end review are worth the price of admission. Not to mention that this paper can also play a role in misleading competitors. Therefore, as one of the main suppliers of large parts of the C808 airframe, it is completely normal for Haofei Group to send an invitation letter to Li Yabo. Its easy to say, you can arrange the time yourself. ?Chang Haonan returned the envelope to Li Yabo: Take more photos and post them on the publicity wall of our laboratory. At this moment, he suddenly remembered a series of short videos he had watched in his previous life. It is the one who uses cats and dogs to refer to tutors and students. There is an issue in it, which is a comparison between "before the publication of Nature" and "after the publication of Nature" - After posting Nature, even if you fall asleep in the group meeting, the teacher has to tell others to shut up so as not to disturb the rest. Of course, the situation in Li Yabo''s Nature article is a little different, but in any case, Chang Haonan is relatively relieved about him. Our laboratorys promotional wall still lacks materials? Li Yabo was so shocked that his hands stopped moving: "You... just show it off casually, don''t you just want to make others'' jaws drop?" Thats different. ?Chang Haonan picked up the mouse and returned his gaze to the mailbox page: As for the laboratory, its not just me. Only when everyone shows results can we say that the overall level of our laboratory is very high. Furthermore, the name is my content, and others have already seen it too much. Even if I put up a new one, not many people will pay attention..." Facing Chang Haonans inadvertent introduction to Fanxue, Li Yabo didnt know how to react for a moment: Thats alrightIll try to take a better picture Immediately afterwards, he picked up his schoolbag, turned around and left Chang Haonan''s office. Its pretty good... Looking at Li Yabo''s back, Chang Haonan remained calm on the surface, but he was still happy in his heart. ?His students can receive such invitations in an independent capacity, which undoubtedly adds glory to him as a teacher. To be honest, although Chang Haonan is not yet an academician, his status in the Chinese academic circle has basically come to an end. But for the professor''s job, he can only be considered a fledgling, and there is still a lot of room for improvement. After all, accepting disciples often depends on appearance. Some students, who pose no threat to teachers in academia, will disgrace teachers in the education world. Fortunately, these two students in his first year were pretty good ??The doctoral student Wang Jie also wrote the reports he submitted every month very seriously. Its just that shipbuilding is a long-term project after all, so we havent produced particularly convincing results yet. (End of this chapter) Chapter 896 Ill be the editor-in-chief Chapter 896 I will be the editor-in-chief After sending Li Yabo away, Chang Haonan, who regained his good attitude, enjoyed the warm sunshine of early spring while starting to check his emails again. ?Now, almost a year has passed since he and Perelman published the paper proving the Poincar conjecture. The heat on this matter has also cooled down a lot. ?However, the term "popularity" ultimately refers to the media. ?Although there is also a saying and phenomenon of pursuing hot research directions in academia, unless it is a field such as biology or materials where the results are relatively short and fast, the significance is really limited. So overall it is quite restrained. On the other hand, compared to Perelman, who has been almost completely missing, Chang Haonan still has some traces in the past year. Therefore, many institutions, scholars or students will still send emails to this mailbox. In fact, this also includes Perelman himself. ?Although he is basically missing from the outside world, his connection with Chang Haonan has never been broken. ??In addition to the usual exchange of mathematical inspirations, perhaps because they have realized their long-cherished wish to solve the Poincar conjecture, the content of the emails exchanged between the two also contains a lot of content that has nothing to do with research - ?Music, life, art, literature and even philosophy. ?Perelman is indeed a genius in the literal sense, and he has some experience in these fields. ?Although Chang Haonan is not a professional, he is still a person who has experienced the Internet era. It is not a big problem to be a listener and a fan. In short, they act like they have been friends for many years. ?Through these daily email exchanges, Chang Haonan also learned a lot about the other party. As a Jew, some of Perelmans relatives chose to immigrate to the Great Patriotic State after the collapse of the Soviet Union, but he himself chose to stay in Russia with his mother after traveling around the West. ?Perhaps this is one of the reasons why the other party is usually taciturn. ?For example, there is an email in Chang Haonan''s mailbox right now that he received last week, asking if he knows how to remove the fishy smell from fish soup... ?Of course, not all emails have such daily content. ?Marian Mirzakhani, who had contacted him before and expressed her desire to come to Torch Lab for graduate school, but was rejected out of hand, sent another email nearly a year later. She first said that she had converted from a master''s degree to a doctorate at Harvard University, and thanked Chang Haonan for his encouragement and support last year. Immediately afterwards, I asked Chang Haonan below about the feasibility of a research route, that is, whether it is possible to reversely use the idea of ????the Poincar conjecture proof process to project the interface tracked in the three-dimensional or two-dimensional space into a higher dimension. space to be processed. ?Concerning Mariam Mirzakhani, Chang Haonan actually didnt take it seriously when the other party sent her an email for the first time. ?However, he vaguely remembered later that this woman seemed to be the first female mathematician to win the Fields Medal in her previous life. The research direction seems to be geometry. Dont let me take my research interests astray... ?Chang Haonan looked at the content in the email and thought helplessly. Even if they are both geniuses in the field of mathematics, different people have different specific talent directions. Mirzakhani can make outstanding achievements in the fields of hyperbolic geometry and symplectic geometry, but it does not mean that she can reach the same height in another direction. ?But, no matter what. Since others asked the question sincerely, Chang Haonan didn''t mind answering the question. After all, firstly, he happens to be free, and secondly... ?This problem is really his area of ??expertise It refers not only to topology, but also to the numerical calculation methods that he had been studying earlier. [For solving this type of problem, you can try to learn about the level set method in the field of applied mathematics. During the numerical simulation of multiphase interfaces, this method is usually used to circumvent the parameterization process and directly use the Cartesian grid to solve the problem. Calculate curves or surfaces that change with time. However, from a theoretical mathematical perspective, this method still has the problem of non-conservation...] At the beginning, Chang Haonan just wanted to briefly introduce the level set method itself to the other party, as well as some ideas for solving non-conservation problems in engineering fields, such as speed reconstruction of the level set method. But as he wrote, he actually came up with some ideas. So he immediately stopped typing, took out a piece of scratch paper, and began to calculate step by step. However, the peaceful time did not last long. ?Just when Chang Haonan felt a sense of hunger in his belly, he decided to go to the canteen and order cumin duck legs for dinner. The phone on his desk suddenly rang. is the white one. ?This made Chang Haonan, whose nerves suddenly became tense, relax a little. Outside phone calls. Generally its not anything particularly fatal. After calming down, Chang Haonan picked up the phone receiver. Professor Chang, you are well! Yuan Xiangya''s voice came from the other side. Dean Yuan? Chang Haonan''s brain was running rapidly, and he quickly guessed the purpose of the other party''s call to him. ?Perhaps just after the Poincar Conjecture was proved, he once suggested that Yuan Xiangya could establish a comprehensive natural science journal like Science or Nature as a benchmark and representative of Chinese academic journals. The other party also invited him to serve as the editor-in-chief of the journal. Todays phone call is probably about this matter. Is your journal already ready? Professor Changs words are obvious, right? Yuan Xiangyas words contained an unstoppable smile: "You are the editor-in-chief of the Journal of the Chinese Academy of Sciences. If you really want to say it, this is the journal for all of us..." Can you tell me the specific situation of the journal? ?Chang Haonan did not continue to be polite, but went straight to the topic. Mainly because he was really hungry. ?There is no large-scale takeout industry these days. If you find someone to take food out, it will be hard to come back. "certainly." Yuan Xiangya replied: At present, it has been initially determined that the journal will be published quarterly, with paper and electronic versions published simultaneously. In principle, submissions in both Chinese and English will be accepted, but only the English version will be published regularly, and the Chinese version may be published irregularly in the form of special issues. The editorial department operates independently of the institutes of the Academy of Sciences and operates in parallel, and is only responsible to the Academician Conference and the Presidium of the Academic Division ? It can be seen that in order to avoid some long-standing abuses in the academic circle as much as possible, the Academy of Sciences has set a fairly high level of independent authority for JCAS journals. Coupled with this is Chang Haonan, the "externally hired" editor-in-chief. It can be regarded as a great effort. Considering that establishing Chinas own academic system is one of Chang Haonans goals, he naturally has no reason to refuse this job. Therefore, after listening to Yuan Xiangyas introduction, Chang Haonan immediately asked: Dean Yuan, when do you plan to publish the first issue of this JCAS journal? Before he officially takes office, he must know when the DDL of the task is. The first issue is in the third quarter of 2001. It is planned to be between the end of June and the end of August. Of course, the specific time depends on your work arrangement. If the manuscript request process goes smoothly, it is not impossible to do it earlier..." With the gradual promotion of electronic journals, the publication dates of major publishing houses are getting earlier and earlier. Many monthly magazines are even released 4-6 months in advance. In comparison, JCAS only published the third quarter in June, which is already relatively slow. Also, Professor Chang. Seeing that Chang Haonan did not reply immediately, after a slight pause, Yuan Xiangya continued: After all, we are a brand-new journal, and this first issue we have to make sure it gets off to a good start, so see if you can Today, Chang Haonans name is still well-known in the international academic community. ??If you just serve as editor-in-chief, it may not attract much attention. But if a year later, he publishes an article as the first author, it will definitely be big news. Is this... Chang Haonan wanted to say that he needed to think about what to write before replying, but at this time, out of the corner of his eye, he saw the several pieces of draft paper on the table that had just been filled with his writing. Okay, I happen to have a fairly mature idea on hand, and it should be completed soon. He replied decisively. Yuan Xiangya was overjoyed: Then we will wait for the good news from Professor Chang... After hanging up the phone, Chang Haonan took off his coat and sat back on the chair. He first called Yao Mengna and asked her to bring him a dinner. Next, open a new Word document and enter the title of the paper you just thought of: Aconservativelevelsetmethodfortwophaseflow (a conservative level set method for two-phase flow). (End of this chapter) Chapter 897 It’s time to bring some small shock to the industry again Chapter 897 Its time to bring some small shock to the industry again... ?In the email sent just now by Mariam Mirzakhani, she mentioned "the idea of ??using humans in reverse to prove the Poincar conjecture." But in fact, if I have to say it, the level set method is closer to the inverse manifold learning algorithm. ?Of course, this is not actually the case, but it can be summarized in this way. ? Manifold learning algorithm processes high-dimensional data into low dimensions, making it easier for humans to understand. The level set method projects low-dimensional data to high dimensions to facilitate computer operations. In the field of numerical computing, this is a "new" algorithm that was only proposed in the late 1980s, but its application scope includes but is not limited to liquid atomization, evaporation, combustion, surface material calculation, image recognition... In short, it is similar to manifolds. Learning is almost all-encompassing, so it was quickly promoted to various fields. Including TORCMultiphysics, several typical level set methods have also been introduced in the official version. But the problem is that the current level set method, even after improvement, can only achieve "close" conservation within a specific interval. This is a very troublesome problem. Especially in its main application areatwo-phase flow calculations. Because in most cases, the two fluids involved in two-phase flow problems can be regarded as mutually immiscible, which means that the method used must effectively maintain the mass conservation of each phase. Hence, the current level set algorithm is prone to violent oscillations and even divergence in long wheelbase time calculations This should be the best part of the level set algorithm. For example, in the previous process of designing the turbofan 10 engine combustion chamber, Chang Haonan combined the fluid volume method and the level set method to calculate the dispersion behavior of aviation fuel after leaving the atomization nozzle. The result... Useful, but not much. Compared with the relatively "simple" single-phase fluid calculations in the compressor and turbine parts, the project team received the least guidance in the design process of the combustion chamber and was forced to adopt the old method of combining a large amount of experience with pilot tests. This also results in more than 60% of the time and money spent on component-level testing. Fortunately, thanks to the limited volume of the small bypass ratio aviation engine combustion chamber itself, the duration of the diffusion process is not particularly long, so the calculation results are not too shocking, and the performance indicators pursued by the turbofan 10 It''s really low compared to its superior overall design, so it didn''t affect anything in the end. But if we pursue larger models with more advanced data in the future, behemoths like GE9X. Or another application scenario, rocket engine Whether it is liquid fuel or solid fuel, since rocket engines have to carry all their own propellants, they rely much more on the combustion-injection process than aerospace engines. ?Then this conservation problem still needs to be solved. ?Of course, since the title of this paper is called "A method of...", it means that it is definitely not a theoretical solution to both the symptoms and the symptoms. It is only applicable in certain specific application scenarios. ?However, even so, it is a huge improvement for the current level set method. [...This paper will propose a conservation level set method to deal with two-phase flow problems with divergent free velocity fields, and in the process develop an efficient method for processing Robin boundary conditions on irregular interfaces, combined with the phase analysis of the interface Variable solution method is used to consider the influence of liquid shape and internal circulation on heat and mass transfer...] First assume that any region , and its sub-regions 1 and 2, and 2=/1. is the interface that divides , and a regularization function (usually a smooth Heaviside function) is constructed to implicitly represent , so that when passing through , quickly changes from 1 to 0, and in the sub-region 1 , then there is 1, and in the sub-region 2, there is 0, so is generally set to the 0.5 level set of . In the calculation, we hope that the shape of the interface can be maintained even in the presence of small disturbances... Time passed quickly as Chang Haonan''s hands were tapping rapidly on the keyboard. ?However, after about twenty minutes, Chang Haonan stopped typing. After thinking for a while, he took out a floppy disk, copied the document he had just written into it, then got up and went straight to the computer room. In fact, the method he developed is not mathematically complex. It is essentially a re-initialization process that repairs the value in the level set equation by solving a stable solution of a viscous term in order to maintain conservation. The reason why no one has ever touched upon it in the past is because it is difficult to implement in terms of specific calculation methods. ?For example, the traditional meshing method is difficult to adapt to the high-speed changing two-phase fluid on the Cartesian grid. But for Chang Haonan, who first focused on numerical calculations after his rebirth and led the entire process of TORC Multiphysics software development and algorithm design, this was not a problem. According to his estimation, after the introduction of the finite element discretization method with adaptive grid, the calculation efficiency can still be basically guaranteed. ??Just if you want to operate it through non-independent programming, but a simple form of graphical interface interaction, then you probably have to wait until the next major version update of TORCH Multiphysics... ?Its just that This is also a good opportunity. Chang Haonan, who was typing the code according to the content of the paper, thought to himself. It has been almost three and a half years since the initial trial version of TORCH Multiphysics was released. ?As for software, as long as you sell it, the code cannot be hidden no matter what. ? Even if Chang Haonan created three versions with different thresholds, at most it would only delay the process to a certain extent. After all, there are tens of thousands of people who have access to the professional upgraded version of the software. Once the base is large, it is expected that the news will leak out. ?Furthermore, after all, competing products are not just for free. In short, starting around 2000, software such as Materials Studio, ANSYS Fluent, and COMSOL Multiphysics also began to catch up in terms of computing efficiency and performance. Although there is still a distance from the pioneer TORCH Multiphysics in terms of overall performance, in their respective fields of expertise, there are already Qualifications to compete. Although the latter still firmly occupies the top spot in market share thanks to its wide casting net in the past few years and the numerical calculation services provided by Torch Group, its advantage will definitely become smaller and smaller in the long run. Therefore, the work plan submitted by Torch Group in February included a new major version update expected to be launched at the end of 2001 or early 2002. ??It is just right to introduce the Cartesian grid and this new type of level set method. Its time for you to feel fear again ?Chang Haonan pressed the Enter key with a snap, then leaned back in his chair, looked at the calculation process displayed on the screen, and said to himself. However, at this moment, a curious female voice suddenly came from not far behind him: Uhwhat fear? At that moment, Chang Haonan felt that his blood ran cold. ?Five years since he was reborn, he has only been unconsciously hit once, and he was caught red-handed. Dont ask, just ask: a man will be a boy until he dies. ?Chang Haonan tried his best to hold back his serious expression, and then turned around. ??Saw Yao Mengna, wearing a light pink woolen sweater, walking in from the door. fine. At this distance, she should have only heard a few fragments of words. "nothing." Chang Haonan replied calmly: I mean, you cant be afraid just because the research direction is difficult. Wellthats true. ?Yao Mengna really didnt know the reason and was easily put off. ?Moreover, he then took the initiative to change the topic: I just came back from the cafeteria, but I couldnt see you in the office, so I guessed you were in the computer room. The lunch box is hung on the doorknob of your office. Dont forget to eat it after youre done. ?This situation made Chang Haonan suddenly remember the scene when he saw Yao Mengna for the first time after he was reborn. In the old computer room, there was also a session where everyone had lunch together. Its just that Zhang Man seemed to have bought the lunch box at that time... For a moment, Chang Haonan couldn''t help but fall into memories. Professor Chang? Yao Mengna looked at Chang Haonan, who was suddenly distracted, and called out tentatively. "oh" ?Chang Haonan woke up suddenly, and then glanced at the computer that was doing calculations. It should take some time before the results are available. Forget it, lets go and eat now After speaking, he stood up, put on his clothes, and left the computer room with Yao Mengna. (End of this chapter) Chapter 898 Professor Chang published another paper? Chapter 898 Professor Chang published another paper? This paper was relatively short and quick, and it took less than a week to complete. After all, this is what Chang Haonan plans to introduce into TORCH Multiphysics in the future. Except for the mathematical derivation part, it involves at most some calculation principles, and it is impossible to write down all the specific implementation details. ?That would be commercial espionage. When the time comes, someone robs me first, and then we will check. Hey! Leaked by my own boss. ?That would be funny. As for submission In fact, there is no need to submit an article. After all, the journal Journal of the Chinese Academy of Sciences has not yet been officially launched, and the publishing house has only just been completed. ??And Chang Haonan himself is also the editor-in-chief. For this reason, the release date of the first issue of Journal of the Chinese Academy of Sciences is almost one month earlier than expected. In fact, although new journals will basically ask big names to serve as editor-in-chief in their early stages, and at the same time ask them to publish some papers to increase the number of citations and influence, in most cases, these invitations are not enough. The papers coming here are mainly reviews. First of all, this is because as long as the person who writes the review is famous enough, the number of citations will generally increase rapidly within a short period of time after publication, much faster than that of ordinary papers with the same impact factor. The second reason is that for scholars with a certain reputation, reviews are relatively easy to write and do not involve any research results. After all, high-level papers are not a big deal, and it is difficult to say that they will be written for you immediately after being commissioned. ?Of course, there is actually another point. Even for most big-name academics, "publishing a paper in a journal of which you are the editor-in-chief" is often considered to be a scam, and may also attract criticism from academic opponents. In short, there are not many honest people like Chang Haonan who really regard heavyweight results as hair extensions... ?However, there is another practical problem before him. JCAS, or the entire academic journals in China, are now in a state where few people pay attention to them. Furthermore, these days there are not as many media outlets that specialize in academic fields as later. So even if Chang Haonan publishes a paper directly on it without making any noise, it is likely that he will not make any waves. so It has to be arXiv. As a preprint website, publishing results in advance on arXiv will not affect normal submissions, but it can attract the attention of many researchers who are paying attention to this direction. Completely meets Chang Haonans needs. ?So, after checking that the content was correct for the last time, he opened the website as usual, and then uploaded the completed document... At about the same time. The other side of the ocean. Columbus, Ohio. Ohio State University. ? Senior researcher Harold Huang holds a freshly opened sandwich in his left hand, and with his right hand controls the mouse to click to enter the arXiv web page. In fact, as an engineering technician who mainly studies high-order numerical simulation formats, there is actually very little content in arXiv that interests him. ?However, after last years exaggerated wave of popularity, arXivs influence in the mainstream academic community has also increased a lot. Although everyone feels that it is unlikely that another person will directly put earth-shattering results on it. But now that Chang Haonan and Perelman have learned from the past, who can be sure? ??Moreover, even if there are few truly significant results above, some wild ideas may still bring some inspiration. Therefore, at least most researchers will take a look from time to time to see if there are any surprises. It can be regarded as some kind of blind box opening behavior. And Harold is one of them. He is used to going there during lunch, which can be regarded as some kind of relaxation between work. ??Of course, sometimes its fun to watch some outrageous people post articles on it and then get angrily criticized by people (usually bored students)... But while waiting for the web page to load, there was a sudden knock on the door outside the office. "Come in!" Harold raised his head and answered loudly. As his voice fell, the door slowly opened. Then, a young student walked in. ?It''s just that he looks a little downcast. Matthew? Harold saw that his usually energetic student was like an eggplant beaten by frost today, and he couldn''t help but feel worried: What happened? Teacher, my paper was rejected by the editor of JCP again. ??The doctoral student known as Matthew sat across from Harold, completely wilted. JCP, The Journal of Chemical Physics, one of the most important academic journals in the field of chemical physics, was published by the American Union of Physics in 1933. ?Although the impact factor is not high, it is a very influential journal in the industry and is well recognized by academic and industrial circles. "How can it be?" ? Harold put down the mouse and sandwich, and his attention completely shifted from the computer screen to Matthew: Didnt I specifically ask you to state in the introduction that the new framework in the paper has high accuracy in implicit large eddy simulations of lower Reynolds number turbulence? Of course I wrote it. Matthew nodded: But the editor of JCP still didnt accept it. Harold frowned. He was very confident about Matthew''s paper, but after submitting it to JCP twice in a row, it never got to the reviewers, which really puzzled him. ?At the same time, I was also a little annoyed. "Did the editor mention specific reasons when rejecting the manuscript? I mean... not a clichd one." Matthew nodded; Same as last time, the editor said that the first half of the paper is too basic and involves a lot of mathematical theoretical calculations, which does not comply with JCPs acceptance principles. I hope we can make revisions..." "boom-" Before Matthew could finish speaking, Harold slammed the table in annoyance: Its simply ridiculous...The content is too basic and can it be a reason for rejection? ?Looking at the suddenly furious mentor, Matthew trembled all over, and his expression looked like he was crying: Butbut thats how the editor responded ? Harold took a few quick breaths and made no reply. His anger was certainly not directed at Matthew. It is aimed at the editorial department of JCP. Harold had already guessed some clues. The rejection of the manuscript is not because the "content is too basic". Rather, it is because his research content is based on a high-precision format based on intra-unit polynomial reconstruction, which is inconsistent with the current direction of the "mainstream academic community." The **** determines the head, which is also a very common situation in academia. ?For example, in the biological field, if your research results are unfavorable to the commercialization of genetically modified genes, then journals under the Nature system will be more inclined to accept it. ??And if it is beneficial to the commercialization of transgenics in turn, then there is a greater chance that it will be approved by journals under the Science system. ?However, it is common, and if it really falls on oneself, no one can be a little angry. Whats more, in the field of fluid dynamics simulation, the scope of submissions is actually very limited. ??If you apply for a purely theoretical physics journal such as PhysicalReview, it is obviously not that interesting... Well, let me take another look at the article and see if I can submit it to another journal. After suppressing the anger in his heart, Harold said in as gentle a tone as possible: If that doesnt work, the Institute of Aeronautics and Astronautics (AIAA) will invite me to give a report at the end of this year. I will explain the content of this paper then..." Thats what it says, but reporting at a conference and publishing a conference paper are not the same thing. ??The high-order flux reconstruction method they studied does have high application potential in aerospace, especially the aerospace field, but it is not directly relevant after all. It is still a bit difficult to publish it as a conference paper. ?However, now that the matter has come to this point, we can only take one step at a time. Okayokay Matthew nodded dejectedly, said goodbye to Harold, and left the office. "well" Looking at the shocked student, the latter sighed helplessly, then picked up the cold sandwich and looked at the computer screen again. After such a long time, the arXiv web page must have been loaded. ?However, Harold had just taken a bite, and before he could swallow it, he was shocked by the title at the top of the list and stopped chewing. Aconservativelevelsetmethod Nosomeone really posted a preprint paper about numerical calculation methods on arXiv? Out of curiosity, he moved the cursor to it and clicked on it. When the web page was first loaded, this paper had less than 50 views. ??A mere ten minutes passed when Harold clicked in. ??However, I found that the reading volume displayed in the lower right corner has reached four digits... "ah?" He could hardly believe his eyes: Is this how popular the field of numerical computing can be? After confirming that the number was more than a thousand and not more than a hundred, Harold almost subconsciously looked at the bottom of the title of the paper ??There is basically only one possibility for this kind of situation where the number of readings increases as soon as it is published. That is, there are many people who have specially set up to follow this author. In other words, he must be a famous boss. ??However, it seems that no well-known figures in numerical calculations are used to posting things on arXiv... ?CHANGHaonan. Harold couldn''t help but take a deep breath. How could I forget about him (End of this chapter) Chapter 899 Submit to Chinese journals? Chapter 899 Submit to a Chinese journal? Almost without thinking, Professor Harold clicked the download button next to the paper preview page. About half a minute later, a PDF document appeared on his computer desktop. After opening it, he followed his habit and read the summary as quickly as possible. It turned out to be an article related to the level set method... It seems to be related to topology, which Professor Chang is good at. Harolds specialization is actually in the high-order numerical simulation framework. However, two-phase flow is an unavoidable topic in the field of aerospace power. As a past NASA researcher, it is difficult for him not to have some understanding of this field. : No wonder he has spent the past year ?While thinking this, he directly skipped the background introduction and started reading the main text. The fact that Torch Laboratory published a Nature paper on materials science is basically only known to people in the industry. Therefore, most scholars impression of the name Chang Haonan still remains at the time when it came out last year. It is a very normal operation for a mathematician, after completing the ultimate achievement in the field of topology to prove the Poincar conjecture, to go back and put his research results into application. Set the motion equation first, then update the level set function...add an intermediate term..." In order to prevent breakpoints, add sticky items Assume that the velocity field on the unit grid is u=sin^2(x)sin(2xy) At first, Harold just had the mentality of "let me see what the big guys are working on" and was ready to take a casual look. But after seeing this, I couldnt stop easily. Because starting from the third section, Harold realized that the paper in front of him was very similar to the rejected paper just now. Certainly not in terms of content. Although both are algorithmic research in the field of computational fluid dynamics, they are not related from mathematical theory to practical problems. but refers to The writing style of the article is very similar. They all start from the classic algorithms commonly used in the past. They first use about half of the space to conduct mathematical derivation, then use a typical calculation example to verify the advantages of the new algorithm compared to the traditional algorithm, and finally prove that the algorithm converges within the specified usable interval. Fxxk Harold breathed out fragrance for a while: Let me just say that even he writes like this, which means that this kind of paper structure should be no problem..." Although Chang Haonan currently does not have any prestigious titles in the international academic world, anyone who pays a little attention to the field of mathematics will know that among the list of Fields Medal winners in 2002, it is basically certain that Chang Haonan and Pei Lehrman duo. So, this paper gave Harold full confidence. In fact, at the moment he just sent Matthew away, Harold even hesitated whether he should revise it again according to the JCP editors suggestion ? Even if he knows that due to content preferences, even if he changes it, he is likely to continue to make things difficult for him. But if we dont change, there wont even be any hope. Of course it doesn''t matter to him, but as the first doctoral student he taught after becoming a professor, Matthew still needs a paper to accompany him. ?But now, Harold decided. Dont change a word! After making a thorough decision, Harold quickly dragged Chang Haonan''s paper to the conclusion at the bottom, preparing to find a different magazine to submit to after reading it. but. ?Just when he moved the mouse and was about to click on the upper right corner to close the document, his attention was attracted by a paragraph at the bottom of the paper, even after the conclusion. This paper is a preprint and does not represent my final research results, so the content is still subject to modification or addition. The official version of the paper will be published in the first issue of "Journal of the Chinese Academy of Sciences (English version issued in May 2001... "etc" Harold suddenly stopped moving his hands, opened his eyes wide and said to himself: Is Professor Chang planning to publish this paper? ?But he soon realized that what he just said was not human at all. It is normal for a paper to be written and published in a journal. Publish it directly on arXiv. The first time it was published is enough to make it famous throughout the ages. After all, Chang Haonan and Perelman wrote very clearly at the end of that paper that the Poincar conjecture is a wealth and treasure that belongs to all mankind, so they decided to disclose it to all mankind in a threshold-free form. The conservation level set method in front of us is obviously not a "treasure of mankind" in any way. ??Of course it doesnt deserve the same treatment as Poincars conjecture. ?After figuring out this link, Harolds attention immediately shifted to the following Journal of the Chinese Academy of Sciences (English version). Obviously, this is a naked advertisement. ??The purpose is to use Chang Haonan''s reputation in the field of mathematics and applied mathematics to draw everyone''s attention to this new journal that has not even released its first issue. Simple and crude. But many times, simple is the best. ?For example, now, Harold followed the information given by the other party without hesitation and entered the website of the Journal of the Chinese Academy of Sciences. Then The first thing that catches the eye is the information introduction of the editorial team. ??And Chang Haonan''s name is impressively located in the first position. Chief Editor. Harold is numb. So much that it took a long time to recover from the shock: I should have thought of it earlier He shook his head in confusion. ??If it weren''t for this relationship, I''m afraid no one would publish such important research results in a new journal... ?However, at this moment, Harold suddenly opened his mind. ??Although this is a new journal. It was also founded by Huaxia Institution. ??But no matter what, after all, there is the golden sign of Chang Haonan. ??Moreover, as far as the content of the paper just now is concerned, it may even have a revolutionary impact on two-phase flow simulation. ??If all the papers in this Journal of the Chinese Academy of Sciences... Wrong. ?Thats outrageous. It should be that even if only one tenth can reach the same level, it is enough to challenge the status of Nature and Science. In short, the future is promising. More importantly, Harold believed that Chang Haonan, the developer of TORCH Multiphysics, would be able to discern the great value of his paper! ?Thinking of this, he couldn''t sit still anymore. ?After eating the sandwich that was completely cold in a few bites, he quickly picked up the phone and called Matthew back who had just left for a short time. Within a few minutes, the latter sat across from the desk again. Teacher, are you looking for me? Matthew''s spirits were somewhat better than when he left before, but he was still a little absent-minded. Thats right. Harold has returned to a state of complacency: I have found the target of my next submission, and I am very sure that it will be passed directly! ?However, the other party''s reaction was not as exciting as Harold imagined. "teacher" Matthew tried his best to cooperate with the performance, but his tone was more helpless: You told me the same thing before I submitted my article to JCP last time "Well" Harold was a little embarrassed after being exposed by the students. Fortunately, he was not a face-conscious person, so he quickly pretended to have lost his memory: Is there still such a thing? Matthew nodded: Not a single word is wrong. Ahem Harold had to cough to cover up his embarrassment: Anyway, there is a real chance this time. Come and take a look. ??As he spoke, he motioned for Matthew to come behind him, and then displayed the paper on the screen and the webpage of the Journal of the Chinese Academy of Sciences. Submit toChinese journals? Matthew couldnt believe his eyes: And...this looks like a new journal that hasnt been released yet? He was a little doubtful that his mentor was ready to break the pot. "Look carefully...the editor-in-chief is Professor Chang Haonan who proved the Poincar conjecture last year!" ? Harold''s tone contained a bit of hatred. As a student, I perform well in terms of hard work and seriousness, but I do lack a bit of spirituality. Moreover, Professor Chang will publish a paper in the first issue. The research content is also computational fluid dynamics, and the structure of the article is almost exactly the same as ours. In this case, this journal will probably be included in the SCI database immediately after its release, and the number of citations will be guaranteed..." Matthews eyes gradually brightened. Even though a year has passed, Chang Haonans name is still persuasive in the field of mathematics and applied mathematics. ?Having him as editor-in-chief can at least ensure that the journal will not degenerate into a subpar pheasant magazine ?Taking a step back, even if all other manuscripts are just fake, as long as Chang Haonan posts his results regularly, he can still guarantee the most basic citations and impact factor. so This wave is not a loss! (End of this chapter) Chapter 900 Competitors’ predictions Chapter 900 Competitors Prediction Similar scenes naturally occur not only at Ohio State University. ?As Professor Harold guessed, many people directly followed Chang Haonans account on arXiv a year ago. After the latter publishes an update, followers will immediately receive a reminder email in their mailbox ?Originally, functions like this may have to wait for a few more years, and will not be launched until the Internet era has fully arrived. But because of Chang Haonans emergence, technical staff at Cornell Universitys Science and Technology Campus were forced to develop this function in advance Thats why thousands of people clicked to view it within ten minutes. You must know that arXiv is not a self-media. Although there is no threshold for registration, its content inherently excludes most non-academic people. Even scholars, in 2001, not everyone was proficient in using the Internet. ?Besides, everyone is very busy, and it is impossible to spend all day on the Internet like an idle person. So, being able to generate a 4-digit reading volume in a short period of time is already a very amazing communication efficiency. ?However, not everyone has the same mentality as Harold. Slightly later. San Francisco, Stanford University. Professor Anthony Jameson was frowning slightly and looking at the PDF document displayed on the computer screen. ??Of course it is also the preprinted paper released by Chang Haonan. But unlike Harold, there were several other similarly dressed people sitting next to him. ? They are from the Swedish COMSOL company and are the development business leaders of COMSOL Multiphysics numerical calculation software. In fact, COMSOL has recognized the potential of multi-physics simulation tools very early. In the mid-to-late 1980s, one of its founders, Svante Littmarck, began to write similar modules based on the MATLAB software that had just been commercially released at that time. ?Unfortunately, it was still in the early stages of the development of computer applied science. Those who could apply computers on a large scale in their work were either top universities or super large companies such as Boeing, McDonnell Douglas, and IBM. Everyone has idol baggage and wants to independently develop their own application software. You mean outsourced software? Can''t afford to lose that person! Hence, the road to commercialization of COMSOL products has never been smooth. In this regard, on the contrary, China has provided Torch Group with a huge amount of business space because its universities and research institutions have limited capabilities and know that they do not have the ability to independently develop software. In the true sense of the word progress is rapid because the starting point is low, it is yes. ? It was not until TORCHMUltiphysics was released and began to seize the market with its absolute performance advantage that a MATLAB commercial toolkit called FEMLAB was launched in 1998 and was renamed COMSOLMultiphysics a year later in 1999. ?It is precisely in order to quickly catch up with the pioneers that COMSOL hired Anthony Jameson as chief technology officer with a high salary Before the name Chang Haonan appeared, Anthony Jameson could be said to be one of the greatest names in the field of CFD, especially the finite volume method. ?Since the 1970s, he has developed a series of CFD-related core algorithms for Boeing, McDonnell Douglas, NASA, France Aerospace, Dornier and other companies and institutions. In particular, he wrote a code framework for predicting ideal transonic flow on swept wings - FLO, and based on this, he developed the most successful CFD software "A488" for Boeing before the 1990s. The latter is the core calculation tool in the development process of Boeing 757, 767 and 777. It can be said that during those years, Jamesons role to Boeing was almost similar to that of Chang Haonan to China today... ? And such a big boss really had an almost immediate effect after joining COMSOL. ? In 1999, the newly renamed COMSOL software was almost overwhelmed by competing products, and could only survive at an ultra-low price among some universities that could not afford TORC Multiphysics. ? In less than two years, the newly released COMSOL Multiphysics 2.0 has already achieved more than 90% of the efficiency of its opponents in the electromagnetics-structural mechanics-fluid mechanics module. ?Although according to industry consensus, TORC Multiphysics definitely has a "professional enhanced version" with stronger performance, it has not been publicly released and does not constitute competition at the commercial level. Hence, in recent months, COMSOL has captured a lot of markets due to its high cost performance and its status as a pure-blood European company. Especially some small and medium-sized start-up companies, as well as research institutions that are willing to try various new things. ??Although as a European company, it is indeed a bit shameful that it can only rely on cost-effectiveness to win. But its about making money. Not shabby. However, before they could breathe a sigh of relief, they discovered that the developer of TORCH Multiphysics opposite seemed to have come up with something new... This feeling of oppression was simply mind-numbing. So, the group rushed to Stanford without even having time to have lunch and asked Professor Jameson about coping strategies. Professor, what do you think? Klaus Helz, the head of COMSOL based in the United States, looked at Jameson who had not spoken for a long time, and tentatively broke the silence. A very nice model. Jameson came up with a compliment. ?This almost caused Hertz to have a cardiorespiratory arrest. ?However, the former changed the subject immediately: But only on a theoretical level. It can only be said that Jameson knows how to suppress desires before promoting them. ?Heltz, who had gone through a lot of ups and downs in less than a second, had no time to complain about this and quickly asked: So, professor, what you are saying is...there are still many difficulties in implementing this algorithm? Thats right. Jameson let go of the mouse and turned to look at Hertz, who was sitting not far behind him: Using LSM, oh, this level set method to simulate evaporation, atomization and combustion on the deformation interface is indeed closer to reality than the empirical vapor layer model and simple heat transfer model. "But in terms of specific algorithm implementation...traditional meshing, I mean, even moving meshes such as the Lagrangian mesh method, are difficult to meet the requirements of mesh generation accuracy and accuracy in this paper. Speed ??requirements. You must know that most two-phase flow interfaces themselves change rapidly with time. The original LSM method is not strictly conserved and cannot guarantee accuracy in long-term simulations of more than 1 second. Professor Changs new algorithm achieves conservation when dealing with two-phase flow problems with divergent free velocity fields, but the generation efficiency in the Cartesian coordinate system is reduced..." At this point, the former took off his glasses and rubbed the corners of his sore eyes: "Of course, this paper is still a preprint, and it does not involve much about the specific implementation process of the algorithm. But unless the computing speed of the computer is improved by 3-4 orders of magnitude compared to now, there will definitely be no way to solve the problem of long wheelbase time parameters. CFD problem, so I speculate that the author may have found some specific conditions as a calculation example to get such beautiful results in the article..." You know, even for the N-S equation, people have found hundreds of analytical solutions under specific circumstances. According to Professor Changs mathematical level, I think this is not difficult..." It should be said that Jameson is worthy of being the best CFD expert in the last era. He almost saw the weakest part of Chang Haonan''s thesis at a glance in just twenty minutes. That is, the grid generation efficiency in the Cartesian coordinate system. ? Its just that, after all, he is already a CFD expert in the last era. As for the power of new technologies in the new era, there has been a misjudgment after all... ?Of course, at this point in time, Hertz must still be happy: So, our next work Proceed as usual. Professor Jameson replied decisively: "My Synplane model has entered the final and most critical optimization stage. Judging from the current results, the traditional finite volume method is used to fix the coordinate system describing the fluid on the fluid particle and let it move with the fluid. , which can achieve the effect of accurately tracking the interface evolution process. "Currently, my research group is trying to topologically reconstruct the grid to solve the distortion problem caused by this process. It just needs to introduce special node search technology to determine the adjacency relationship of nodes. This part of the work is a bit complicated, but in the end It should be ready for commercial application by the end of this year. Facing the dominant position of Torch Group, COMSOL Multiphysics, in addition to its cost-effectiveness strategy, has another important advantage in its extremely fast update frequency. More than a year after it was officially launched, the second major version has been launched. Especially for industry-leading functions, as long as they can pass the performance test, they should be included first. This is very attractive to most research institutions. ??TORCHMultiphysics is the complete opposite. After the official version 1.0 was released, it only pushed a total of three small-scale updates. However, its performance is extremely stable. As long as you follow the operation manual, there will be almost no oscillations or divergences. However, this also causes COMSOL to maintain such high-intensity updates, so the business is under great pressure. They plan to push another major update at the end of 2001 to increase the software version number to 2.5. Synplane, a model that can optimize the fluid mechanics and structural mechanics of the entire aircraft at the same time, is the "trump card" of version 2.5. ?Hence, after hearing this assurance, Herz''s tense expression finally relaxed. (End of this chapter) Chapter 901 The one-year period has arrived! Chapter 901 The one-year period has arrived! In short, although Chang Haonan just sent a trailer for his new paper, it caused quite a stir in the academic and business circles at the same time. ?In addition to COMSOL, several other similar products have also found technical experts or technical teams as quickly as possible to start tracking and analyzing his research developments. ?Of course, because most competing products do not specialize in two-phase flow, they either have a superficial taste, or, like COMSOL, continue their original development route after a wave of analysis. Only ANSYS, which had developed Fluent in the early years, saw the potential behind this paper. ??But I also encountered a similar problem to Professor Jameson - I really cant think of how to accurately and efficiently generate unstructured grids in the Cartesian coordinate system. Logically speaking, when this happens, since others have published all the papers, they can either pay a high salary to recruit people, or even if they cannot recruit people, they can just provide the author with a research topic. But this situation is too special The person who wrote the paper was the boss of the opposite company. How do you dig this? So for the time being, we can only wait and see what happens, and wait and see what the Torch Group can do next. Some technology media have rekindled the interest of this matter with titles such as "Poincar Conjecture prover releases arXiv again". ?However, we cannot entirely blame these media for causing trouble. Mainly because the time stuck was too coincidental. You know, the proof of Poincars conjecture is still unfinished. ? A year ago, the Clay Mathematics Institute made it clear that although the Poincar conjecture was proven almost at the same time after it was officially announced, it still belongs to one of the "Millennium Mathematics Problems." In other words, the two certifiers can share a huge prize of US$1 million in total. According to the rules set at the time, the money will be officially awarded as soon as one year after the paper is published. If the proof process still fails to reach a consensus in the mathematical community after one year, it will be postponed until formal recognition is obtained. Of course, Chang Haonan and Perelmans certification process was approved in less than a month, so the latter clause was not triggered. Now, the one-year period has arrived. ??Everyone is ready to see whether the Clay Institute is really prepared to pay the money as promised, or whether it is just a word of praise. ?However, compared to the disturbances from the outside world, Chang Haonan himself is not too concerned about the aftermath of this submission. ? During this time, he has been reviewing the manuscripts in the editorial mailbox to decide which articles will be published in the first issue of the JCAS journal Normally, this work does not require the editor-in-chief to be personally responsible, but after all, this is Huaxias first attempt to break into the international mainstream academic community, so it is normal for the standards to be higher. ?However, the actual situation is that everyone in the editorial department has much more optimistic expectations. After all, Chang Haonans brand name is so effective in China. ? Many people even turned to the JCAS editorial department to submit their papers to the top journals in the field. ?For example, Professor Feng Qi from the Institute of Technical Physics of the Chinese Academy of Sciences submitted the gene sequencing and analysis results of rice chromosome 4. Although it is only 4 pages long, it is an important part of the genome sequencing work. It is a result that can be published in Nature or Science. It can definitely be regarded as full support for the work. In addition, there are many names that Chang Haonan is familiar with. ?Xu Yang, who has been working between the Institute of Computing and Torch Group and the Torch Group, developed a high-dimensional observation method for linearized water wave problems with distributed or point measurement functions. Professor Lin Guofan of Jincheng University proposed a new meteorological theory on the formation mechanism of major weather disasters in southern China... In short, although the overall strength of Chinese academic circles is still relatively weak at the beginning of the 21st century, it is more than enough to pool the strength of national research institutions to support a quarterly journal. ?Of course, since it is an internationally distributed publication, it cannot only contain articles by Chinese scholars. As Chang Haonan''s papers on arXiv are seen by more and more people, some foreign researchers are also submitting articles to the editorial board. Its just that foreigners dont have any special feelings towards your new journal. So the quality of these papers is unexpectedly uniform ??There is no chance of submitting to top journals, but I am not willing to submit to some small journals. As there is a new platform with such a powerful platform, it is better to take a gamble and try my luck. It is also in line with Chang Haonans initial positioning of JCAS. ?Just comparing it with those obviously high-quality submissions in China, it is inevitable to feel a little tasteless and a pity to abandon. Therefore, when Yuan Xiangya rushed to Chang Haonans office to visit him, the latter was comparing two papers from the same school on the screen with a tangled look on his face, and could not make up his mind for a moment. Professor Chang, no, Editor Chang, Ive been working hard recently. The former put some gifts he brought next to his desk, and then sat on another office chair opposite. ?Chang Haonan raised his eyelids, checked that there were no sensitive valuables, and then accepted them without politeness ??During this period, his status was as a chief editor and writer, and it was only natural that he would receive some nutritional supplements from others. In fact, Yuan Xiangya is also a member of the editorial team. Its just that there are too few papers related to his field of expertise, so he has a lot of time. Forget it, I never expected that there would be so many submissions. In addition to sleeping and eating these days, I have been reading papers almost all the time. I feel like my brain has gone numb..." Chang Haonan said as he closed both papers, and then dragged one of them into the folder named "Issue 1". The other article will certainly not be rejected, but it will probably have to wait until the second issue in August to be published... In fact, the real submissions are more than ten times more than what we have seen. ?Yuan Xiangya has experience in the editorial department of journals before, so he has much more experience in this regard than Chang Haonan: Those whose contents are too outrageous, or are just fake, and whose data can be seen at a glance as having problems... In fact, the editors below have already picked them out. So theres still so much left? ?Chang Haonan was immediately shocked. "no way" Yuan Xiangya replied in a helpless tone: "We didn''t expect Professor Chang to have such a strong appeal. It was indeed a bit of a mistake. We knew we should have ordered a bimonthly publication... and the quality of the submissions was much higher than we thought before..." Thats okay, after all, its just starting out, its better to be steady. Chang Haonan was relatively calm about the current situation, so he waved his hand: "Our journal is now like Zou Ji. His wives, concubines, and guests all say that he is more beautiful than Xu Gong in the north of the city. It does not mean that it is true. If you look at more submissions, you will find that the high-level ones are all Chinese scholars at home or abroad. , it has a filter on our journal and cannot be regarded as normal. As he spoke, he reopened his mailbox and prepared to check the next email. ?However, at this moment, the coherent movements suddenly stopped. I am worried that the publication interval of the quarterly journal is too long. Some authors cannot wait three months and may be withdrawn..." Yuan Xiangya was still chatting normally, but halfway through, he found Chang Haonan staring at the computer screen in a daze. Professor Chang. Professor Chang? He barked twice in succession. "Um?" Chang Haonan woke up and looked at Yuan Xiangya: "Ah...Sorry, I was a little confused just now. What did you just say?" Its okay...its not an important topic. Yuan Xiangya shook his head: Have you seen any particularly heavyweight paper content? He is still more concerned about journal matters. Thats not trueactually it has nothing to do with the journal. Chang Haonan raised his hand and touched his chin: The Clay Mathematics Institute sent me an email, saying that the award is ready. Yuan Xiangya didnt even react when he heard this sentence: "What" ?However, before the word "award" was uttered, he had already realized - "etc" So itsthe $1 million from the Millennium Math Puzzle? ?Chang Haonan nodded, and then shook his head: Technically speaking, its $500,000 (End of this chapter) Chapter 902 I, Chang Haonan, make money Chapter 902 I, Chang Haonan, make money ??The Clay Institute of Mathematics has tackled these seven major problems, and the award format is also based on the Nobel Prize. ?If more than one person solves the problem together, the prize money will be divided equally among them. So according to principle, Chang Haonan and Perelman should each receive US$500,000. In the original timeline, because the latter went into seclusion directly after completing the proof, the money was not given out in the end. ?However, because the situation in this life has changed dramatically, no one can say what decision Perelman will make. But no matter what, Chang Haonan is still prepared to receive the bonus. Not that he personally needs the half a million dollars for anything In fact, Chang Haonan can''t find any place where he needs to spend money in his daily life. Mainly considering a symbolic meaning. This is the first time in history that a scholar with Chinese nationality has won such a top honor in mathematics. Thats right, top notch. It must be admitted that the Clay Institutes publicity campaign was very successful. On the one hand, the seven questions they chose are indeed very high-level and widely recognized by the industry. on the other hand The dramatic scene of "someone won the award almost at the same time as the award was announced" has indeed objectively made more people understand the "Millennium Mathematics Problem". ?Hence, the popularity of this award, which has never been awarded even once, has far exceeded that of "time-honored" brands such as the Fields Medal and the Wolf Medal. ?Even once came close to the Nobel Prize. ? It is said that the Norwegian Academy of Natural Sciences and Letters was also inspired by this and is preparing to use high bonuses to win another mathematics prize in time for the 200th anniversary of Niels Abel''s birth in 2002. In short, for the glory of the entire Chinese mathematics community, Chang Haonan finally reluctantly decided to stand up and shoulder the heavy burden of 500,000 US dollars... Of course, having said that, the final situation still depends on the outcome of discussions between the two parties. So, after careful consideration for a while, he replied to the other party with a sincerely worded email. In the reply, he first gave the Clay Institute of Mathematics a polite rainbow fart, and then expressed that he was very grateful to the other party for recognizing his research results, and he was also willing to be one of the first recipients to receive this honor, but he was currently in the process of receiving the award. We are at a critical stage of research on an important topic, so it is really inconvenient to leave the capital. I hope this can be taken into consideration when designing the award method. ?At the end of the email, Chang Haonan also thoughtfully said that if it is really inconvenient to award the award in China, the prize money can be transferred directly to his account. The rituals and so on will be added later when it is more convenient. Simply put it is. I, Chang Haonan, make money! After replying to this email, he almost immediately received a message from Perelman. Or, to ask. Chang, you should have also received the email from the Clay Mathematics Institute, so I wont repeat its content. [Personally, I have no particular interest in awards or bonuses, and I believe you should be the same. However, on the other hand, there is no shortage of honors in the history of Russian mathematics, so I can make my decision without restraint. But the Chinese mathematics community may need you to stand up and receive this award. I can understand this. Considering that the award-winning work was done jointly by the two of us, if I were the only one to refuse to accept the award, you may be put in an unfair position. Therefore, I would like to ask your opinion on accepting the award. Grigory Yakovlevich To be honest, Chang Haonan was a little moved when he saw this serious but concerned email. It can be seen that Perelman, a mathematician known as a "geek", really regarded him as a confidant. "well" After a long time, Chang Haonan sighed helplessly, and then began to write a reply again... Yuan Xiangya next to him was originally planning to see the world and see what the communication process for awarding the Millennium Mathematics Prize is like. ?So after obtaining Chang Haonans consent, I also came to peek at the screen. ??The result was such an email at first glance. It makes me a little doubtful about life This is an award that others only dream of receiving. Why do you feel that it is like a hot potato? ?He said to himself that if no one really wants this 1 million US dollars, it is not impossible to give the money to me... Actually, there is obviously not only one person who doubts his life because of this incident. ??If Yuan Xiangya was still complaining in his heart, then Arthur Jeff, who was preparing for the award at the Clay Mathematics Institute, was already close to going crazy at this moment. ?Originally, he actually received replies from these two and a half missing people within half an hour of sending the letter today, and he was still very happy. result Extreme joy brings sorrow.?????After opening the email, I couldnt laugh at all. Of these two gods, one said that he didnt care about the award format, and asked him to decide directly with the other person, and then just inform him of the result in the end. And this other one said that he couldnt get away, and then he directly handed over the card number Just show it to Jeff and look stupid. You know, for this award, they have prepared a quite grand and complicated ceremony at the French Academy of Sciences, just waiting to use this to further build their reputation. ??It would be best to poach a few more big guys as the situation develops. In the end, Chang Haonan said he didnt want to go abroad? In any case, it is absolutely impossible to send money directly. They set up this award to promote themselves, not for charity. To put it bluntly, even if you are engaging in charity, you have to meet the other party before giving money. ??Jeff doesnt even know what Chang Haonan looks like, and his communication has always been through email. What if the person opposite is not Chang Haonan himself, but a liar? So there must be a ceremony. In fact, logically speaking, Chang Haonan''s reply can be regarded as a refusal to accept the award. After all, the method of awarding is also part of the conditions for winning. To receive the award, you must abide by it. But some things dont make sense. ??Concerning "whether Poincar''s conjecture is counted as one of the seven major mathematical problems", in fact, it caused quite a stir last year - ??Some of them were promoted by sponsor Langton Clay himself. So now the eyes of melon-eating people all over the world are eager to focus on the Clay Mathematics Institute, waiting to see if you are really ready to pay as promised. At this time you stand up and say that both winners refuse to accept the award? Who believes it? Hundred mouths cannot explain it. So, this award must be given out no matter what. But there is another problem. You cant ask me to go to the capital, so I will go to the capital. ??It would be too bad to go all the way to China to present awards because of an email from Chang Haonan. And it will be a very bad start. In case the leaders behind them also follow the gourds, wouldn''t their Krey Research Institute become kneeling and sending money? So, you have to find a suitable excuse. Jeff''s mind began to race. A few seconds later, he turned his head and looked at his assistant not far behind him: Jessica, has it been decided where the International Congress of Mathematicians will be held next year? ?Jessica thought for a moment: Currently, we are choosing one of four cities: Beijing, Madrid, Bangalore and Seoul. The final result has not been released yet, but it is almost certain that it will be the capital of China. ? Hearing this answer, Jeff finally breathed a sigh of relief. That will be easy to handle. Since the specific award rules have not yet been announced, as long as the other contents remain unchanged, the award location can be changed from the fixed French Academy of Sciences to the International Congress of Mathematicians - This is not something we are easy to talk about, its just that ICM happened to be in the capital. Dont get me wrong. Thats how the Fields Medal is awarded anyway. ?Thinking of this, Jeff quickly returned to the home page of his mailbox and began to write an email to his boss, Landon Clay, explaining the cause of the situation and requesting a change in the award plan... "well" ?After the email was sent, the former leaned back on his chair with relief, his eyes almost lost focus, and he looked straight ahead. "too difficult." He said to himself: Its okay to make money, but why is it so difficult to make money (End of this chapter) Chapter 903 Reversely poach talents from the United States! Chapter 903: Poaching talents from the United States! ?As far as Chang Haonan is concerned, as long as the other party agrees to hold the award ceremony in China, everyone will be happy. The issue of face is secondary. ?Of course, on the other hand, he really didnt know what the original arrangement of this ceremony was ??The proof process of the Poincar Conjecture in the previous generation did not cause a stir of public opinion like last year, so Perelman successfully refused to accept the award in the end. So, there is actually no prize for the Millennium Mathematical Puzzle. This is the first time in his two lives. In short, in his reply to Arthur Jeff, he first stated that "the venue of the award ceremony cannot be adjusted at will according to the request of the winner", but then turned around and said that "the award ceremony will be held at the nearest International Congress of Mathematicians" "Chang Haonan finally chose to see through this kind of behavior that was inimical to his integrity but not speak out. He also wrote back and highly praised the efforts made by the Clay Mathematics Institute in reducing extravagance and waste and practicing thrift. ??I just dont know if the person at the other end of the network cable will vomit blood after seeing it... ?However, Yuan Xiangya''s reaction next to him was still a little slow, and he frowned slightly after seeing this reply: Professor Chang, isnt the nearest International Congress of Mathematicians the one next year? "yes." Chang Haonan said as he closed the email receipt interface, and then clicked on an email from the inbox again. Judging from the domain name, it should be from Ohio State University. "But I remember...next year''s class is already close to ten, and it''s decided to open in BJ?" Yuan Xiangya obviously still lacks some deep understanding of the attribute of "tsundere". Heyforeigners, good face. Chang Haonan shook his head helplessly: If I ask them to present the award in the capital, the other party will definitely not agree directly. After all, there is no reason for the person who gives the award to be manipulated by the recipient. But having said that, because of what happened last year, Perelman and I can refuse to receive this award, but the Clay Institute must not refuse to award it for the sake of its own reputation. So I can only find some decent ways. Yuan Xiangya felt that his visit today was not in vain. ??He had seen more anecdotes in that hour than in the previous ten years combined ?Those who think that US$500,000 is a hot potato, and the award organizers who are begging to give money to the winners. ?However, it is always a good thing. The Chinese mathematics community has never been so proud as it is today More than half a century ago, there were some systematic achievements in theoretical mathematics in China. However, as a poor and weak country at that time, China was inherently unable to make a big noise in the international arena. This is true in any field. Later, the Chinese people stood up. ?As a result, Huaxia Mathematics fell again... In short, it just didnt catch up with the good times. But now, probably all the hardships will come to an end... Looking at Chang Haonan who was immersed in work again, Yuan Xiangya suddenly felt that even though he had passed the best age for achieving results, it seemed that if he changed his route, he would not be able to do something more... Then I wont disturb your work. ?Thinking of this, Yuan Xiangya stood up and prepared to leave. This time, Chang Haonan just sent him to the door of the office: I just received a very interesting paper, so I will send it to you not far away. The two shook hands as a farewell. Its okay, I understand how it feels. Yuan Xiangya is also an academic after all. Knowing Chang Haonan, this is definitely not an excuse: Its very annoying to have your train of thought interrupted while reading a paper. I wont be such a bad person. Goodbye. After sending Yuan Xiangya away, Chang Haonan almost jogged all the way back to the computer. The paper on the screen that was highly praised by Chang Haonan was naturally from the research group of Professor Harold Huang. ?AfluxReconstructionApproach toHigh-OrderSchemesIncludingDiscontinuousGalerkinMethods (High-order flux reconstruction methods including discontinuous Galerkin methods). Chang Haonan was attracted almost as soon as he saw the title of the paper. After reading the abstract and highlight, he was basically determined to accept this article. Simply put, Professor Harold unified a series of compact and high-precision formats that have emerged in recent years through a method called "high-order flux reconstruction (FR. As long as different flux correction functions are selected in the FR method, almost all high-precision formats based on intra-unit polynomial reconstruction can be covered. It can be said that this achievement is equivalent to the "grand unified theory" in its subdivision. Especially for Chang Haonan, this is even more true. High-precision format has been a very hot research direction in the past two years. ?However, this has nothing to do directly with Chang Haonan himself or Torch Group. If I have to say something, it can only be said that the emergence of the catfish TORCH Multiphysics has made the entire numerical calculation field active, thus giving birth to a series of achievements that did not exist at all in previous lives, or did not appear until much later in previous lives. . High-precision format is one of them. Theoretically, its advantage is that when sufficiently high-precision meshing is used, the calculation error can be controlled to a very, very low level. Or in other words, if such a low calculation error is not required, the number of grids can be greatly saved. Taking the level set method studied by Chang Haonan as an example, when the error constraint is 1e-6, the grid size corresponding to the fourth-order high-precision format is 32 times the grid size corresponding to the second-order format. In the three-dimensional case, the mesh amount can be saved to 1/30000. In this case, the additional complexity introduced by the high-precision format itself is basically negligible. However, the application scope of each high-precision format is quite narrow and the complexity is very high. If each format is written into the software separately, the amount of code data will increase to an unacceptable level. And many complex engineering models cannot be processed in one format at all. Hence, the current official version of the software has not included high-precision formats in the update plan. The FR method, if it is what the author said, can solve this problem perfectly. As long as the user sets the flux correction function. As for why such a significant paper was published to JCAS... Chang Haonan can probably guess it. Although the FR method solves the problem of "narrow application range of a single method", in order to truly realize its application, two other obstacles must be overcome - Similar to the reason why the level set method is difficult to generalize. ? High-precision format has extremely high requirements on meshing accuracy. If the mesh is rough, the results of the high-precision format may be worse. ?Furthermore, due to the relatively poor adaptability of high-precision formats, it also requires high levels of engineers using CFD software. ? Even with FR, it is impossible to solve some simple problems just by software presets like traditional low-level methods. This is the case in the field of numerical computing. Different people use the same software tools to complete the same project, and the results are often very different. However, in the current initial stage of the development of the CFD industry, the level of the vast majority of users is difficult to describe. Hence, the industry is generally not optimistic about the short-term development prospects of high-precision formats. Even Chang Haonan was like this before today. It''s just that he is two steps ahead of others - ??Torch Group not only has the only meshing algorithm in the industry, but also has a numerical computing business department dedicated to "after-sales" and even holds regular numerical computing business training. This is also one of the core reasons why TORCMultiphysics dares to set high prices. In other words, there are three big mountains facing competing products. Turn over one and there are two left. But Chang Haonan was already standing in front of the third mountain, and it would be a smooth road after climbing over another mountain. The FR method in front of me is not even a trekking pole. It is a shield machine. Can directly open a tunnel out... Thinking of this, he quickly threw the paper into the folder where it was published in the first issue, then picked up the phone on the desk and prepared to ask the Torch Group office to send an email to Professor Harold in the name of the company. Lets see if we can poach the opponent directly. ?However, after pressing two numbers, his right hand was hanging in the air again. ?Due to the interruption of the dialing action, the receiver soon sounded a tone indicating that the phone number was unavailable. After struggling for a moment, Chang Haonan put down the phone again. ??Although Torch Group has gained a certain reputation in the industry, in the final analysis it is still a Chinese company. It is now the beginning of the 21st century. Even though Chang Haonan has used various means to make China develop much faster than in the previous life, for people who have not experienced the two timelines, this contrast cannot be felt. So, going abroad or even immigrating is still the lifelong dream and goal of many people. ?? And poaching people from developed countries, especially the United States, which seems to be still at its peak at this time... Its quite difficult. ?Affected by the propaganda from the United States, China''s image in the eyes of Americans, if not still at Daiqing, is at least not much different from that of a large South Asian country. ?So, if you send someone an email so suddenly, Im afraid the effect wont be very good. Still need to lay the groundwork. Furthermore, Chang Haonan also had to confirm whether Harold Huang really had ink in his stomach. After all, the journal editorial office is not responsible for the authenticity of the content of the paper. But as a leader, he must be responsible for the development of the company. With this in mind, Chang Haonan had a new plan in mind. ?So, he picked up the receiver again and quickly dialed the number of the Torch Group''s office. Hello, Old Song, its me, Chang Haonan. You remember to make arrangements. When the TORCH Multiphysics 2.0 version is officially released in the second half of the year, we will hold a conference on numerical algorithms and computational science. Yes, for the whole world. You can consider the specific format and arrangements, and the group will be the main bearer of the funds. Of course, it would be better if someone else is willing to sponsor it. Well...if friends and businessmen are willing to participate, we welcome them with both hands! (End of this chapter) Chapter 904 Preparing for trial production Chapter 904 Preparing for trial production For Chang Haonan, being the editor-in-chief of JCAS is not, after all, at least not his main business right now. Therefore, after finalizing the list of papers published in the first issue, as well as the front and back covers, Chang Haonan handed over the subsequent specific work to the two deputy editors in the editorial department. As for himself, after taking a break, he returned to the project at hand. ?During the previous period, the engineering prototype of the ultra-short laser processing equipment that Haojing Optical Machinery was responsible for has also reached the end of the production stage. Only a few optical wedges and lenses that need to be imported are still in transit. It will probably be completed about a month ahead of schedule ?According to Chang Haonans original plan, the multi-degree-of-freedom mobile positioning module responsible for controlling the movement of the workpiece also needed to be imported from abroad. This thing requires a high degree of customization, which is much more troublesome than most optical components. But after the prototype was built, the project team discovered that Torch-C.B. Ferrari could directly provide similar equipment. The principle of the ultra-short laser processor is similar to that of a new model of CNC milling machine over there. The workpiece moves on the four axes of X, Y, B (rotating around Y), and C (rotating around Z), and the Z direction is determined by Milling cutter (laser) movement. Since the laser itself does not require main movement (rotation) at the same time as the milling cutter, this is basically the easiest processing method to implement. In short, as long as it is simply improved, it will not be a problem to at least use it on a prototype first. As for the mass production model, there are still many opportunities to slowly debug it. ?Of course, Academician Hou is responsible for the hardware development and production of the equipment itself, and Chang Haonan does not need to interfere in everything. ??But after all, Academician Hou is only an expert in laser processing, not an aerospace engine expert. Therefore, Chang Haonan still needs to be responsible for determining the specific process parameters of the prototype trial production process. In fact, the ultimate goal should be to identify a class of process methods. After all, there are so many workpieces that need to be processed by ultra-short laser processing in the future, and it is impossible to come to Chang Haonan to be responsible for each one. The ultimate goal should be to achieve similar results to machining, which can be done by the resident engineer or the design and development team of the workpiece itself. Its just that this process has to be done step by step. At present, both Factory 112 and Factory 132 are clamoring for more turbofan 10 production capacity, so this urgent matter must be resolved first. As time goes by, the degree of completion of the engineering prototype is getting better and better. Finally, the date for the first trial production was determined on the last day of the first half of 2001. June 30th. The location of the trial production is naturally at the new location of the Torch Laboratory. It is an engineering prototype after all. ??Although the degree of completion is much higher than that of the prototype, which only has a shelf and messy cable management, there are still a lot of things that make do. For this kind of equipment, it is not easy to debug it to normal state. You still have to abide by the programming philosophy of "don''t move if you can run". Comparatively speaking, it is obviously a simpler way to bring several semi-finished workpieces from Shengjing. Therefore, one week before the trial production date, an aviation production technical team from Liming Factory, personally named by Chang Haonan, brought various technical materials and a group of turbines that had completed other processes except for the air film hole processing. Ye Ye came to the capital. The person leading the team is naturally Zhong Shihong, who is responsible for the production of turbofan 10. After meeting, only after some simple greetings, everyone came to the No. 1 Experimental Building of the Torch Laboratory together. ?The engineering prototype is placed in the trial production workshop here. ? Its just that for this unfamiliar equipment, you still need to go through a round of training before you can actually get started. After a brief rest and lunch, everyone took their seats. Immediately afterwards, Chang Haonan, wearing a lab coat, came behind the small desk. On the screen next to him, the basic schematic diagram of the ultra-short laser processor is projected. Everyone, time is tight and the task is heavy, so we wont waste any more time and start directly from the principles of the processing system. ?Chang Haonan turned slightly sideways and pointed at the curtain with a pointer: The entire processing equipment can be divided into seven parts: laser generation module, optical transmission track changing module, multi-degree-of-freedom mobile positioning module, monitoring and detection module, air blowing and dust removal module, solution circulation module and controller module. The core components of each part are I have already written the parts on the PPT. "Theoretically, this equipment is equipped with a self-inspection and troubleshooting system similar to that of our turbofan 10 engine. Even if an error occurs, the specific location of the problem will be displayed in the system, but as core engineers, you should still Have an in-depth understanding of device hardware An additional explanation is that because picosecond-level lasers cannot completely eliminate thermal processing effects, we will immerse the workpiece in a neutral salt solution for production, so the air blowing dust removal module does not need to be put into use for the time being. But on the mass production machine, we may use coaxial injection technology to allow the laser and salt solution to be coaxially injected onto the material surface, so we need to consider the issue of air blowing and dust removal... Chang Haonan said as he clicked the mouse, turned the PPT to the next page, and began to introduce the process level: For materials with different characteristics to be processed, I have designed a set of numerical calculation methods that can guide the design of processing processes from the perspective of surface molecular dynamics. "However, because computational materials science is still in a very preliminary stage of development, not all content can be directly calculated. Production testing is still needed to finally determine the specific process parameters. This is also the main purpose of this test. content." "Specifically, parameters such as laser pulse width and wavelength cannot be adjusted temporarily on this engineering prototype, so put them aside for now. What you need to determine are mainly the number of scans, repetition frequency, scan speed, pulse energy, and There are a total of eight parameters including feed rate, feed path, layer level and processing environment..." "One thing that needs extra attention is that our turbine blades are not made of a single material, but have a layer of heat-insulating coating on the surface. This may not be a big difference for mechanical processing, but for laser processing, the coating section and transition The corresponding processing techniques for the three parts of the segment and the metal matrix are different, so the processing needs to be segmented..." ?Chang Haonans lecture speed is as fast as ever. Even so, this first technical meeting still lasted a whole afternoon. Mainly, Chang Haonan spent about three hours introducing how to apply the new calculation method he developed. For engineers with non-theoretical background, it is indeed beyond the scope of ability to rely on this set of algorithms to obtain very specific results. But if we are just preparing to provide qualitative guidance on process testing, it should be possible. Hence, he spoke in great detail. ?The engineers sitting below are almost writing out sparks with their pens. Especially Zhong Shihong. Four years ago, he was promoted from the director of the technology department to the deputy general manager of Liming Group precisely because of the successful mass production of the turbojet 14. ? And this time, if the production of the Turbofan 10 can be finalized through his hands, it will definitely be a very important bargaining chip for the future competition for the position of general manager. ?Zhong Shihong has been working hard for several years to this end. Compared to the time of Turbojet 14, his level of numerical calculation theory has improved a lot now. At least this time, I can think along the lines of Chang Haonan... Dear comrades. ?After Liu Chenchen refilled the cup in front of Chang Haonan for the sixth time, the meeting finally came to an end: The biggest problem currently restricting the increase in the production capacity of turbofan 10 is that the processing efficiency and yield rate of special-shaped air film holes cannot meet the standards, resulting in high production hours and production costs. This trial production is one of the most critical links in the production and finalization process of the turbofan 10. I know that everyone is somewhat anxious. Chang Haonan returned to his seat in front of the conference table with a glass of water in his hands. His eyes calmly glanced at the dozen key members in front of him: However, ultra-short laser processing is a new technical direction after all, so even I, or Academician Hou, cannot guarantee that all situations will be taken into account 100%. So, if you find any possible problems, you must report them in accordance with the regulations. Dont worry about affecting efficiency, and dont take things for granted. Do you understand? "clear!" Everyone answered in unison. "good." Chang Haonan nodded and took a deep breath: Then lets prepare according to the tasks just assigned! (End of this chapter) Chapter 905 Special-shaped air film hole, punched successfully! Chapter 905 Special-shaped air film hole, punched successfully! Preparatory work before the start of trial production lasted for nearly a week. In fact, although the entire testing workload is heavy, it is basically repetitive work, so the process itself is not complicated. It was all arranged the next day. But anyone who has ever entered a factory (regular factory) knows that safety training takes up the longest time before starting work. Ordinarily, those chosen to come to the capital are all master craftsmen, but the situation of laser processing is different from mechanical processing after all, and the equipment itself is not very stable. So Chang Haonan and Academician Hou even spent two days demonstrating some precautions in the operation of this equipment. Finally, everyone was given two days off. After recuperating, trial production officially begins! According to usual practice, this first process test naturally requires a very high specification configuration... As the head of the production process group of the Turbofan 10 team, Zhong Shihong fixed the first turbine blade that had been coated on a special fixture. Immediately afterwards, Chang Haonan, who was sitting in front of the computer, copied the process parameter setting code that he had written before into the command line interface Because time was so tight, there was no time to design the UI interface of the control system. It could only be set by connecting an external laptop and inputting operation commands on site. ?Han Zhigao, who leads the light source control team, fuses the power of the laser and opens the valve of the solution circulation module. ? Huo Penghua, the leader of the signal transmission team, conducted routine safety inspections before processing. The testing workshop in the laboratory is naturally not large. ?The entire team consists of nearly 30 people, and several of them have to run forward and backward, so it is indeed a bit crowded. ?However, under the command of Chang Haonan, the entire boot process was carried out in an orderly manner to the end. Academician Hou Xun, the general person in charge of hardware research and development, personally pressed the yellow button to start processing... With a slightly harsh buzzing sound, the micro vacuum pump started working, pumping the special neutral salt solution stored in a tank not far away into the workbench. The surface of the workpiece is slowly immersed in the liquid. At the same time, several consecutive sets of booster coils increase the current in the high-power system to the operating level of the laser. In order to prevent some relatively fragile electronic components from thermal breakdown, a cooling system that has nothing to do with the processing itself but is bulky and essential has also been started. If there are superconducting materials with relatively high availability, the working efficiency of the entire laser can continue to improve. Academician Hou leaned on a table, looked at the equipment that was still under the yellow light (waiting for processing), and slowly said to Chang Haonan next to him: "Although some optoelectronic technologies are used at the control signal level, the energy system still uses electricity. Now the thermal effect is more obvious. In addition to the time-consuming preparation phase before processing, the allowable continuous working time of the entire laser also has to be used. The lifespan is not very satisfactory either. ? Hou Xun is already quite old and may be forced to withdraw from the front line of scientific research at any time due to physical reasons. Therefore, he is even more eager to seize this last opportunity and personally implement the technology he has studied for many years. Moreover, to achieve perfection I have considered this before. Chang Haonan replied somewhat helplessly: However, current research generally believes that the road to copper-oxide superconductors has been exhausted. The upper limit is basically around 130K, and it can only be realized at an extremely high pressure. There is almost no possibility of being put into application..." Since we have decided to go in the direction of computational materials science, high-temperature superconductivity and even room-temperature superconductivity will definitely be a technical difficulty that must be overcome sooner or later. ?However, before his rebirth, Chang Haonan did not know much about the field of superconductivity, so he was unable to gain the foresight that he had in the aviation field. The situation can only be understood by relying on some papers of this era. ? He ??may have heard of some concepts of iron-based or nickel-based superconductivity, but after checking a series of information, he found that in 2001, the academic community still seemed to believe that iron was not conducive to the formation of superconductivity. Obviously, there should have been an evolution at a theoretical level. So the workload involved probably wont be too small. Chang Haonan currently does not have much time to systematically engage in research in this area. ??If you just make a few scattered superconducting materials based on the fragments of words you heard in the previous life... It may not be difficult to write about Nature or Science. ?However, this is not what Chang Haonan really wants. He is not short of those papers. On the contrary, it is possible for competitors to notice this direction in advance. Hence, superconductivity is an important but not urgent issue in Chang Haonans timetable, and is ranked relatively low. ?Looking at Academician Hou who looked melancholy, he wanted to say a few words of comfort, but for a moment he didn''t know how to speak. You can''t tell people that if you insist on living a few more years, you might be able to see that day... Fortunately at this time, the long spell casting movement is finally over. ?A weak, but clear and crisp sound of "pap-pap-pap-pap-pap" interrupted the somewhat depressing silence. ??This is the sound made by the ultra-short laser when it is working. At this time, the laser processing light source has also been immersed in the salt solution together with the workpiece. Invisible to everyone, the laser beam passes through a series of components such as the pump cavity, aperture, output mirror and beam expander, continuously intensifies and narrows, and finally emerges from the partial reflector and hits the turbine blade to be processed. On the surface. After 10 femtoseconds, due to the intense inverse bremsstrahlung radiation, the electrons around the metal atoms began to absorb the laser energy, and the average kinetic energy increased rapidly. In the following 90 femtoseconds, the increasingly violent collisions between electrons began to affect the vibration energy of the metal atoms themselves, and the molecular groups that were originally firmly "bound" together by the binding energy began to become active. Finally, within a time scale of less than 1 picosecond, the energy possessed by the particles breaks through the binding energy that binds them together. Like a city wall hit by a trebuchet, in microscopic "explosions" one after another, Falling off the surface of the material Human beings cannot accurately observe this process through any sophisticated equipment, but it does exist. And, according to the settings of this experiment, it will happen 500,000 times every second. Time passes by minute by minute. For the people sitting (standing) around the equipment, they can only see the dazzling green light still shining through the dark glass, and the monotonous but rhythmic snapping sound to judge that the equipment is still in working condition. All we can do is wait. Finally, after two hours that lasted as long as two centuries, the instrument''s working status indicator light changed from red to yellow again. This means that the machining process has been completed. ?As long as the working fluid is discharged and the equipment is cooled, this round of processing will be officially completed. ??It was still Zhong Shihong, who opened the cover covered with dark glass and carefully took the blade out from inside with both hands. It is no exaggeration to say that the first time he held his own child, he had never used such gentle movements. Mr. Chang, look. ?Zhong Shihongs voice was trembling. From the appearance, you can already see rows of neatly distributed basket-shaped air film holes on the surface of the blade. ?This rather complex hole shape is one of the key factors that enable the turbofan 10 to achieve "three and a half generations" performance using relatively backward materials. But at the same time, it is also the culprit that has caused the delay in completing the ramp-up of its production capacity. ?Of course, the processing effect is impossible to see with the naked eye. So after appreciating his masterpiece for a while, Chang Haonan calmed down and then ordered: Hurry, put the samples in bags and seal them, and send them to the next door for inspection! "yes!" Zhong Shihong stood upright, found a sealed bag as quickly as possible, and quickly left the test workshop with another technician. ?Four years ago, when Chang Haonan improved the drilling process for the Turbojet 14, this type of inspection even required a special flight to Lianhai to do it. Now, there is a fully functional testing center in the main building of the Torch Laboratory less than 100 meters away. It can be said to be a shotgun exchange for a cannon. The results of spending a lot of money are also shown at this critical moment. ??Even before it was time for lunch, the two people ran back happily. ?In addition to the samples I brought back, I also have a test report. Report to Mr. Chang! Zhong Shihong came to Chang Haonan. Perhaps he was breathing unevenly due to running. After taking several deep breaths, he opened the report in his hand: According to the inspection of a total of 45 air film holes on the surface of the workpiece, the hole diameter, positioning accuracy, and hot-melt layer thickness of all air film holes meet the production requirements. The roughness and curvature of the inner surface of the holes slightly exceed the requirements. , but still better than the optimal result after EDM..." ? After listening to this report, Chang Haonan finally felt relieved: Comrades. His tone was obviously filled with suppressed excitement: I declare that the first round and first production test of the ultra-short pulse laser processor was a complete success! The moment Chang Haonan finished speaking, cheers resounded throughout the workshop. ?Especially on Academician Hous team, many people even had tears in their eyes. ??If it werent for the tight string of safety regulations, Im afraid someone would jump three feet high It is normal for the first trial production to not be able to obtain a product that fully meets the requirements. On the one hand, the processing speed, including the processing effect, must still have an optimization range. Otherwise, there would be no need to bother with trial production and it would just be commercialized directly. On the other hand, as long as there are no problems with parameters such as positioning accuracy and hole diameter that are not easy to modify, the remaining parts, even if some are beyond the allowable range, can still be recovered through the subsequent finishing process. Achieving this result has exceeded the psychological expectations of everyone present. Next, as long as the test proceeds step by step, it is only a matter of time before a relatively optimal set of process parameters is obtained. in other words. The mass production of Turbofan 10 is coming soon! (End of this chapter) Chapter 906 The production capacity is too high and there are worries Chapter 906 The production capacity is too high, and there are also troubles Originally, Chang Haonan had reserved two and a half months for the entire trial production process. In other words, it can be completed before the beginning of September, or at least the process parameters can be basically determined. As for the reason very obvious. If there are no big changes to the timeline, then starting from September, there will be constant big news in the remaining months of this year. In his previous life, in 2001, he was still studying hard for his PhD. In hindsight, he only knew about the drastic change that could be called a turning point in history through only a few words in newspapers and TV. Since we had just experienced a plane collision in the first half of the year, our reaction at that time was very simple You really deserve it. ?Of course, Chang Haonan really couldn''t do anything else at that time, so he could only vent in his heart like this. But in any case, this did objectively result in his lack of understanding of what happened throughout the fourth quarter of 2001, making it difficult to plan in advance as he did during the Allied operations. You can only take one step at a time. Therefore, although Chang Haonan will most likely not be able to directly participate in the decision-making this time, by that time, he will definitely have to allocate extra energy to pay attention to the development of the situation. ?However, it turned out that he was overly worried. ?The trial production process progressed far faster than he expected ?This is not entirely because of how efficient the two teams work, but because Chang Haonan''s initial thinking was a bit off the mark. His two and a half months were the time set aside to find optimal processing conditions. But in fact, the air film hole of the turbofan 10 can be made by traditional electric spark technology and the hand work of a skilled craftsman, and it does not need to be so extreme. At least not for Liming Factory. So only one month later, starting from the beginning of August, trial production has begun to produce products that meet the process requirements. Although at the beginning, the yield rate was still at a relatively low level. But no matter what, it is much better than the EDM situation where the listener is sad and the listener sheds tears. Therefore, by mid-August, Zhong Shihong directly led a team back to Liming Factory and brought a month''s supply of semi-finished turbine blades and turbine disks. Thats right, he plans to use this engineering prototype directly to process the air film holes of the mass-produced turbofan 10 Since we have to try it out anyway, we might as well make good use of the production capacity here. Unsurprisingly, the prototypes soon outnumbered the production models ?According to Chang Haonan''s calculations, under ideal circumstances, taking into account the improvement of production efficiency and yield rate, the ultra-short laser process can be an order of magnitude more efficient in drilling holes than the past EDM process. Of course, this does not mean that the production capacity of turbofan 10 can be directly increased to 10 times. After all, as the drilling efficiency has improved, there will be other speed-determining steps. For example, the finishing of high-pressure compressor blades, the coating speed of heat-resistant coatings, etc. In these links, Liming Factory has actually used international mainstream, or technologies equivalent to international mainstream. What restricts the improvement of production capacity is the proficiency of workers. And more importantly, order volume Although China''s GDP has advanced four years compared to the previous period, surpassing Italy and France in the second quarter of 2001 and ranking fifth in the world, and is only one step away from the fourth-placed UK, overall, it still belongs to a relatively backward developing country. Money is needed everywhere. ? It must also be taken into consideration that neighboring countries and major competitors should not be overly stimulated. Therefore, this year, that is, 2001, the budget allocated for national defense construction is 220 billion yuan. Equivalent to approximately US$26 billion. ? is about 1/12 that of the United States. This is the result of an annual growth of at least 15% since 1997, and a maximum growth of 20% a year. So, dont look at the previous time when 20 turbofans were built every year, both the Air Force and the aviation industry complained that there were not enough. ??If we can really make 200 units a year in the future, then they wont be able to eat it... Mr. Chang. ?Looking at the test report with increasingly better data, Zhong Shihong looked slightly melancholy: Cant we really let Factory 112 and Factory 132 increase their production capacity? After the production capacity potential gradually increased, he even became more forceful in his speech than before. ?When facing my colleagues from the Aviation Industry Group next door, my attitude changed from "please be gentle" to "have you not eaten?" Ahem In short, the production capacity potential of turbofan 10 is now very obvious, so Zhong Shihongs concerns have gradually shifted from pure technology to business. ?It is really uncomfortable to have orders for only fifty or sixty units despite having the ability to produce hundreds or dozens of units a year. Its difficult...the three services plus the second artillery force put a lot of pressure on equipment replacement, and the resources that can be specifically allocated to the fighter aviation force are already limited. Chang Haonan put down the pen in his hand and shook his head: "Including the J-11B and J-10A, we can produce about 30 aircraft per year, which is already partially exceeded my expectations. On the one hand, the J-10E has no customers for the time being, and on the other hand, the J-10E has no customers for the time being. In terms of adaptability, it is still the power of AL31F. "And to take a step back, even if there are so many orders, the 112 and 132 factories themselves have not completed the expansion. Especially the 132 factory has planned a brand new factory area. At the moment, even if it is running continuously, it will not be able to produce much production capacity... " 200 engines a year, even excluding engine replacement and spare parts, can be converted into a production of about 100 new fighter jets. This number could not be reached every year even before Chang Haonan was reborn, let alone now. The main reason is that our current production potential is too great. Zhong Shihong touched his chin: The troubles of happiness ?Chang Haonan was originally going to change the topic, but when he heard what the other party said, he suddenly had an idea. The production capacity of turbojet 14 is actually not low. The reason why we have never encountered this problem is because the Persian F4 upgrade project takes up hundreds of units of production capacity at a time. ?Of course, in the international market, there is currently no model that requires a high-thrust engine like the Turbofan 10. After all, the United States and Russia both have their own power models and do not need to import them from China. But if you open your mind... What if the complete engine is not exported? The current production capacity potential of Liming Plant is actually mainly accumulated in the turbine disk and turbine blades. ?This is a problem unique to the world. You must know that the turbine structure is one of the most precious parts of the entire aviation engine. The situation of the vast majority of aviation manufacturers is similar to that of the previous dawn, with total output being dragged down by turbine components. Its just not that exaggerated. Therefore, there is definitely a market for exporting turbine blades individually... Its just that something is needed now to make the world realize Chinas capabilities in this area. Thinking of this, he put down the pen he had just picked up, and then picked up the phone receiver. But after thinking about it for a while, I put it down again. Even internal calls are not foolproof. So according to regulations, some really core things need to be conveyed in person. Old Zhong. ?Chang Haonan looked at Zhong Shihong, who was already lowering his head to sort out the report not far away: The next time you return to Shengjing, remember to go to the 606 Institute to find Comrade Liu Yongquan. Zhong Shihong has to go back to Liming Factory every half month to report on the work situation, so he is more suitable to do this than Chang Haonan, who is based in the capital. Mr. Liu? ?Zhong Shihong stopped what he was doing and looked back at Chang Haonan: But I remember... he should have been transferred away to guide Snecma Group in improving the M88 engine? Yes, thats why I asked you to find him. Chang Haonan nodded: You tell Comrade Yongquan that when you revise the M88 engine design next time, you can consider modifying the cooling film holes on the turbine structure and changing the current two-dimensional forward tilt hole into a three-dimensional dustpan-shaped hole. Before you leave, I will prepare a technical document, and you can just hand it to him along with it. Three-dimensional structure ?Zhong Shihongs initially dazed expression gradually became enlightened: Same design as the turbofan 10? Thats right. ?Chang Haonan showed a meaningful smile: The structure of the film cooling holes on the turbine is different from the inner wall of the combustion chamber, and is relatively independent of the design of the engine itself. Therefore, after different types of engines are replaced with the same film holes, the cooling efficiency will not change much. It just so happens that the French want to further improve the performance of the M88, so lets help them by the way No matter what hole type, the processing difficulty of two-dimensional holes is much lower than that of three-dimensional holes. Furthermore, the Western military currently generally uses electrochemical machining for hole making, and its process parameters are relatively complex. When relying mainly on experience, the process development cycle is measured in years at the fastest. So, if the M88 really changes the air film hole structure, it is impossible for Snecma to achieve mass production in a short time. But if the Rafale fighter jet wants to compete with the EF2000, the upgrade progress cannot be delayed. Orders will naturally flow to Liming Factory... ??Moreover, the French will not suffer. The cost of ultra-short laser processing is no higher than that of electrochemical processing. Combined with the actual situation in China, even if enough profit margins are left, the final product in Snecma''s hands may still be more expensive than what they make themselves. Cheap. A win-win situation, a win-win situation! (End of this chapter) Chapter 907 The postponed Paris Air Show (should still be available after 0 oclock) Chapter 907 The postponed Paris Air Show (there should be another chapter after 0 o''clock, counting today) ?Although Chang Haonan has already made great plans, this kind of thing cannot be rushed. Thanks to the good basic technological level of the French and the high performance of the CFM56 core machine itself, the foundation of the M88 engine is actually not bad. It can even be said to be very good. It may not be as powerful as the EJ200, which is designed according to the fourth-generation engine standard, but it is at least stronger than the F404 and RD33 of the same level. It was just that the French lacked experience in the dual-rotor engine, coupled with their previous lack of vigilance and over-reliance on General Electric as a "partner", which led to the lameness of the project. In the end, they had to treat a dead horse as a living horse. The mentality is to find help from the Chinese people. Fortunately, Chang Haonan had excellent medical skills and was able to save him in a short time. ?However, twists and turns led to twists and turns, but after a round of design modifications and solving several of the most critical pain points, the M88-2 engine still showed its excellent potential, and the testing progress was very fast. ?In just a few months, all four of the Rafale fighter jets'' flying prototypes - C01, B01, M01 and M02 - have been replaced with M88-2 and are undergoing intensive test flights together. ?Especially the carrier-based M02 aircraft, it has even performed dozens of takeoffs and landings on the aircraft carrier Charles de Gaulle In fact, compared to the French Air Force, which at least has Mirage 2000s, and Dassault, which at least has Mirage 2000s for sale, the French Navy, which has officially taken over the Charles de Gaulle aircraft carrier three months ago, is the one that is most anxious to get it right now. Rafale fighter jets in service. It''s already 2001, and their carrier-based fighter is still the F8 "Crusader" designed nearly half a century ago. ?That is even a model with a cannon as its main weapon... In short, it is impossible for the French to agree to make any major changes to the M88-2 at this juncture. So whether it is optimizing the air film hole design or having the Liming Factory to OEM the turbine blades, we have to wait until the M88-3. Speak of it, Mr. Chang. Zhong Shihong raised his head after recording the experimental data: This weekend, this years Paris Air Show is about to open. I dont seem to have heard that our group has any plans to participate in the exhibition? Well, this matter was decided at the meeting at the beginning of the year. Chang Haonan replied without raising his head: The models we have on hand, the turbofan 10 is not convenient to take out for the time being, and the turbojet 14 and QC130 are a little behind, which affects our current image. "As for other models, they are either produced under license from foreign engines, or they are still on paper. In short, no matter how they are set up, they are not suitable, so this year we simply did not bring any physical objects to the exhibition and asked the publicity department to make a few. There is also a place for large-scale models on the display board. But you dont have to worry. This air show is held in France after all, so our group has also arranged some small surprises for our colleagues. Even the domestic exhibition team does not know about this..." At first, his answers were very smooth. But after speaking, the voice gradually became quieter. There seems to be something wrong. No, wait a moment... This time, Chang Haonan finally raised his head: The Paris Air Show...shouldnt normally be held in June, why is it this weekend? As he spoke, he took a special look at the calendar hanging next to him. Its August 14th. Because the Aerospace Power Group had no official plans to participate in the exhibition this year, and had been extremely busy before, Chang Haonan never cared about this matter after the Spring Festival. He always thought that it was handled directly by the deputy general manager in charge of publicity business in the group. . It turns out that it hasnt opened yet? Zhong Shihong, who was not far away, was also a little confused by this question. He hesitated for about half a minute before speaking: Well...in April this year, the French Aerospace Industry Association issued an announcement saying that because Le Bourget Airport was undergoing hardware upgrades and routine maintenance, the air show was forced to be postponed until the end of August..." Are you kidding ?Chang Haonan was almost amused by this rhetoric: The Paris Air Show has been held for almost 100 years, but airport renovations dont know to avoid June in odd-numbered years? Well...this is what the French official say. Zhong Shihong touched his chin: But we generally feel that it is because if it is held in June as scheduled, several of their key models will not be available yet. If the air show held in Paris makes the British shine, it may be better for the French not to hold it. This explanation is quite reasonable. At that time in June, the M88-2 was scheduled to be installed and tested soon. ?For safety reasons, it is unlikely that models that are still in the early stages of testing will be allowed to directly perform flight performances. But the EF2000 next door is definitely flyable. Like Gust? Chang Haonan asked with a smile. He found that his influence on the timeline had gradually penetrated into these unimportant details. ?However, precisely because it is not too important, it can be viewed from a more relaxed perspective. But Zhong Shihong shook his head slightly: Mainly, certainly, but not entirely. "Last month, Airbus announced the overall design plan for their super-large passenger aircraft, with 4 engines, 555 seats, and a range of 15,000 kilometers. It plans to make its first flight in 2005 and put it into commercial operation before the end of 2007... and officially changed its name to A3XX. A380, I guess part of the reason is waiting for this, after all, it is a model that surpasses the Boeing 747 and is enough to subvert the status quo of international air transportation. Speaking of the Airbus A380, Zhong Shihong still had a look of envy on his face. After all, even counting the models currently under development, the largest aircraft China can build is the 110-ton C909. The largest aircraft designed by ourselves is still the 90-ton Y-9. The A380 has an empty weight of 245 tons and a maximum take-off weight of 575 tons. A proper Big Mac. Once put into production, it will become the largest aircraft currently in production. Take it step by step. ?Chang Haonan also heard some clues from the other party''s tone: In a few years, when the situation of the Turbofan 20 stabilizes, we should be able to initially establish a 200-ton model, similar to the Il-76. Later, there will be plans for 300-ton or even larger aircraft. He is a man who has lived two lifetimes, so he is quite calm about this kind of news. Anyway, compared with the hellish state in the previous life in 2001, the current situation has been improved countless times... ? And the Airbus A380 model generally feels a bit untimely. ?When the project was formally established, the super large passenger aircraft was already a bit like the sunset. When it was put into operation in 2007, it completely missed its golden period. ?Of course, Airbus may not be aware of this at the moment, but after all, it still has to consider things other than commercial operations They need a model that is comparable to the 747 as a symbol of their challenge to Boeing. So, for this A380, even if we know there are uncertainties, we still have to go ahead with it... At almost the same time, Chang Haonan and Zhong Shihong accidentally chatted about the Paris Air Show. France, northeastern suburbs of Paris. An air formation consisting of five aircraft disbanded over Bushell Airport and entered the landing route according to air traffic control instructions. In fact, as a large airport with three runways, the route management here should be more efficient. However, due to renovations, the longest concrete runway 07/25 was temporarily closed. Only the two asphalt runways 03/21 and 09/27 were available. In addition, the aircraft coming to participate in the air show were intensively approaching, which caused some air pollution. Congestion. In an Airbus A320 that was moved to the back of the landing sequence and was therefore still hovering in the sky, Guo Ruiqing, director of the Science and Technology Development Department of the Aviation Industry Corporation of China and leader of the Chinese exhibition delegation, opened the sunshade and looked through the porthole glass. under the wing. Where his vision converged, a nimble fighter had opened the speed brake at the tail and pointed its nose at the shortest runway, 09/27. It is the J-10E fighter jet that participated in the air show for the first time. The weather in Paris is unusually sunny. ?From Guo Ruiqings perspective, he could even vaguely see the two Air Force emblems above the triangular main wing of the plane Even though both types of J-10 have not yet officially entered service with the Chinese Air Force, it is a common practice in the aviation industry to spray the participating aircraft with the livery and emblems of their country or target customers in advance. As a puff of smoke blew up between the rear wheel and the runway, two parachutes were pulled out from the root of the vertical tail, and the aircraft was controlled to stop in the shortest possible time. The entire landing process went smoothly. "Speaking of which, we have to thank the French for helping us unintentionally..." ??Yang Quanzhi, the representative of Rongfei Group sitting next to Guo Ruiqing, looked at the J-10E that had successfully landed, and his tense body finally relaxed: If they hadnt suddenly postponed the air show for two months to let the J-10E complete the last few test links, then we might have had to bring the third child to the exhibition again this time..." "yes." ??Guo Ruiqing said and sat up straight again: The Aerospace Power Group didnt bring anything real this year. If we pull our hips again, the scene wont look good Even though he said this, he actually still had half of the words hidden in his heart that he didnt say out loud: If the aviation power side really brings the real guy of Turbofan 10, then we will become a green leaf again..." (End of this chapter) Chapter 908 There are legends about me everywhere in the world (New January Chapter 908 There are legends about me everywhere in the world (New January, please vote for me~) After circling for about 20 minutes, the Airbus A320 finally received the landing order. For the Chinese delegation, participating in the Paris Air Show is actually something they are familiar with. More than ten years ago, China Aviation Industry came here for the first time when it went abroad. In fact, if you look at the delegation level alone, this year is not even the largest one. ?However, the equipment brought is definitely heavyweight ?The entire Chinese delegation has a total of 5 aircraft, excluding one A320 responsible for transporting personnel and one Ilyushin 76MF responsible for support tasks. The other three will participate in the exhibition in the form of ground display + aviation performance. They are one J-10E, one JJ-9E and one FBC1A, also known as JH-7A. Because the J-7F has participated in too many air shows, and the appearance characteristics of the second-generation aircraft are still relatively obvious, it ultimately failed to get a valuable spot. The delegation even considered whether to fly to Paris on a C808 passenger plane. ?In this way, there will be one more model that can be exhibited. But in the end, we still have to consider that after all, the C808 has just been put into commercial operation and is still at a high position on the bathtub curve of failure rate. Even when flying domestic routes, Hufei Group sometimes has to send engineers to participate in the guarantee, and it rashly flies long-distance international flights. The route requires three stops in the middle, so the risk is relatively high. So I chose a safer plan. In any case, C808 has obtained airworthiness certificates from Europe, the United States, China and the CIS, and there will be many opportunities to debut in the future. ??When members of the Chinese delegation descended to the apron through the ramp, the three exhibition aircraft that had landed early had already been towed to their respective booths. JJ-9E and FBC1A are parked normally on both sides of the entrance to the Huaxia exhibition area. But the J-10E was not together with the other two, but had other arrangements... ?After greeting the representatives of the organizations stationed in France and representatives of the air show organizer, Guo Ruiqing also arranged the task of decorating the exhibition area in an orderly manner. As for himself, he took several other people, including Yang Quanzhi, to wander around the air show area that had been divided into zones. Its not exactly just hanging out. In fact, the reason why the superiors asked him, the head of the Science and Technology Development Department, to lead a team to participate in the exhibition this time, instead of asking someone from the foreign trade or publicity department to take the lead, has another meaning - Take this opportunity to track and judge the aviation industry level of each participating country and find the future development direction. So, in addition to the normal air show-related tasks, Guo Ruiqing also needs to submit an industry development report for the new century after the air show. ??However, as the team leader, he would be extremely busy after the air show opened, and would not be able to spend a lot of time to see the conditions in other countries'' exhibition areas. ?So we can only take advantage of the period before the official opening of the air show to get as much useful information as possible. ??If we must find one special feature of this air show, it would be that the number of Asian countries participating in the show has increased significantly. In addition to China itself, which is already an old face, David, Japan, South Korea, and India also sent their own delegations. The scale of the exhibition area is not small. However, as a new face, most products still appear in the form of models or display boards. ?Especially Japan, due to restrictions on the three principles of arms exports, still attended in the name of "guests" instead of exhibitors. ?However, they still brought a C1 transport aircraft and a US1 seaplane for real-life demonstration These two models are unarmed and can be regarded as "edge balls" in a sense. ?However, in addition to these two conspicuous big guys, Yang Quanzhi keenly noticed that there were two seemingly inconspicuous models placed in the corner of the Japanese exhibition area. ?One of them is highly similar to an F16, but there are some slight differences in the shape of the wings. As a manager of the Rongfei Group, he was naturally able to recognize that this was an F2 fighter jet that the Self-Defense Force had just put into service a few years ago. Although it is designed based on the F16, its size, especially its wingspan, is actually much larger than that of the F16, but its power has not changed. Compared to a fighter, it is closer to an attack aircraft or a fighter-bomber. In fact, this is indeed the case in the establishment sequence of the Air Self-Defense Force. As for the other one next to it... Even as a model, it is a bit too rough, and it is obviously just a design concept. ?If I have to say it, its a bit like a combination of F18 and F22. Even Yang Quanzhi couldn''t recognize it for a while, so he had to get closer and take a look. Advanced Technology Demonstration Machine Project X (ATD-X) ??Yang Quanzhi pushed up his glasses, and at this moment he heard a shutter sound coming from behind him. ?He turned around and found the team leader Guo Ruiqing standing behind him, holding a camera in his hand. "I said Lao Guo, this little... this Japanese guy is not very honest..." It was not until entering the next Indian exhibition area that Yang Quanzhi spoke to Guo Ruiqing in Chinese. ?Two real transport models were sent to attract attention at the door, but there were many combat models inside to test the reaction of various parties. It is very consistent with the Japanese character who likes to do little things secretly. Can see it. ??Guo Ruiqing nodded: In recent years, as our development speed has accelerated, the United States has also gradually relaxed its control over Japan and South Korea, especially Japan. If nothing else, Japan does not have wind tunnels or high-altitude experiments. Things like Taiwan, like the ATD-X project just now, would be impossible to establish without the help of Americans. While talking, the two came to an airplane model on the Indian side. Single engine, light weight, air inlets on both sides, tailless large delta wing no doubt. LCA brilliance. Of course, it is 2001 now, only 17 years have passed since the LCA project was officially established. ?For a third-generation fighter, this span is not too exaggerated. In addition, the prototype has never made its first flight, so no one knows what the details of this model are. Therefore, adhering to the principle of showing leniency to the enemy, Guo Ruiqing still carefully took photos and records of this model. Compared to their Japanese counterparts who were quite cold and even a bit hostile just now, the two Indian guys standing here are quite enthusiastic. ?When I saw someone finally stopping in front of their booth, they started talking with each other with witty remarks regardless of who they were. The only problem is that since Chinglish and Hinglish are not in the same language system at all, and the two of them speak very fast, Guo Ruiqing and Yang Quanzhi look at each other, and no one understands. What on earth is the other person talking about. In the end, I could only briefly express my friendship and blessings, and then ran away at the speed of light. After that, Korea and the Davidic Kingdom had even less bright spots. ?Therefore, after briefly visiting the situation of his Asian counterparts, Guo Ruiqing decided to focus his main attention on the European exhibition area. It is said to be the "European Exhibition Area", but it is actually the main exhibition area of ??this air show. In order to facilitate the media to take unified photos, the more gimmicky models were parked together before the opening. Within a few steps of walking in, everyone had already seen many classic scenes such as F15E and Su-27SM sitting side by side, as well as Rafale and Typhoon going head-to-head. He is really not afraid of big things. The J-10E brought by China, together with Saab''s JAS39, was parked not far from the European Shuangfeng. Good guy ??Guo Ruiqing raised his camera and took a group photo of the four planes. Four models that all adopt the canard + delta wing design appear in one photo at the same time. Im afraid there wont be many opportunities like this in the future Immediately afterwards, he walked close to several airplanes. ?And Yang Quanzhi followed closely behind. The aviation industry, especially the aviation industry Rongfei, is quite concerned about gusts and typhoons. After all, it is considered the same-level product as the J-10E. Although its not really competitive in practice In addition to aircraft, Britain actually also brought its power, the EJ200 engine. Place it next to EF2000 and display it as a separate exhibit. As an old enemy that has been in tit-for-tat with the United Kingdom for hundreds of years, the French were naturally not to be outdone, and also put out the M88 engine alone. In this case, since they all came, Guo Ruiqing read them one by one in order. until ??When he walked to the display board of the M88-2 engine, he suddenly saw several square characters on it. To be precise, its a LOGO with a few square characters printed on it ?An abstract shape that looks like an aircraft engine fan spinning. ?It says below... China Aviation Development Co., Ltd. Further down is the English abbreviation. AECC. Thats right, the LOGO of China Aerospace Power Group. and the Snecma Group''s LOGO are printed side by side in the corner of the M88-2 engine display board. "ha?" Looking at this familiar yet unfamiliar name, Guo Ruiqing felt numb all over: What about the most basic trust between people? Isnt it better not to bring any physical objects to the exhibition... (End of this chapter) Chapter 909 No, am I right to Mr. Chang? Chapter 909 Isnt it right? I am talking to Mr. Chang? In fact, if possible, Snecma does not want to print China Aviation Developments LOGO on the M88 engine display board. As the pride of France, the power used by Rafale is mixed with the blood of China. ?Although it sounds great to do, it doesnt sound good when told about it. However, lets talk about it and make trouble again. ??Contracts signed in black and white must still be recognized No matter from which level, M88 is a model jointly developed by France and China. ??If the relevant information about the latter''s participation is really erased, Snecma will be responsible if any mistakes are made in publicity in the future... So, although they have reduced the area of ??the two LOGOs as much as possible. ??And set it in the lower right corner where it is most easily blocked by the display frame. Even, the background of the exhibition board was specially made into a blue color that is close to the logo of China Aerospace Power Group. But it is not difficult for those with sharp eyes to see it. "Eh?" ?Yang Quanzhi behind him also discovered this "bright spot" at this time: "I said Lao Guo, can this...be considered an exhibit of the Aerospace Power Group?" In fact, compared to Guo Ruiqing, whose main task is to collect intelligence information, Yang Quanzhis purpose of coming to Paris this time is simpler. It is to promote the new model and see if we can find possible orders. So, he is actually more concerned about these issues than the former. ??Guo Ruiqing touched his chin: Strictly speaking... they just said before that they would not bring physical exhibits from China... Hearing this sentence, Yang Quanzhi called him a good guy in his heart. It turns out that the foreshadowing has been laid long ago, and we are just waiting here... As middle and senior managers of the Aviation Industry Group, the two of them naturally knew about the cooperation between the 606 Institute and Snecma to improve the M88 engine. Even know some of the details. But I never thought that it would be carried out in such a straightforward form of "joint research and development". You must know that the aviation industry has also engaged in de facto cooperation with Europeans in recent years. For example, the most typical NH90/straight 12. ?Nearly 40% of the research and development work for this model was completed by the Bingfei Group. It can be said that the "subtle content" far exceeds all other projects. But after all, everyones name is NATO Helicopter, so its not easy to do it too blatantly. In order to avoid suspicion, the two parties still used the form of suppliers to each other to cover it up. Therefore, only the national flags of France, Italy, Germany, and the Netherlands have been painted on the NH90 exhibition boards. Correspondingly, Chinas Zhi-12 is also self-developed on the surface. ??Anyway, dont ask why they look alike. As long as there is a clear understanding, thats it. ?Of course, this time, the Aviation Industry Group did not bring the Zhi-12. ?First, the range of a helicopter is too short compared to a fixed-wing helicopter, so it is impossible to fly over from other places. Renting an An-124 is a huge expense. ??Another one, the current Zhi 12A is supported by two TV3-117VMs that are not small in size. The performance is decent, but the shape of the big-headed son is really not very pleasing. It would be awkward to compete with NH90. Furthermore, in China''s traditional arms sales market, there is really not much demand for such high-end helicopters. Fortunately, the Bingfei Group still has the AC139, a super cash cow that makes three people happy, and it is not in a hurry to open up new military markets. ??But looking at the M88 engine in front of him, Yang Quanzhi still felt a little regretful: If only we could sign this kind of cooperation agreement with Eurocopter when we were building the Z-12... Tsk tsk. ? NH90 is now parked at a booth about 200 meters away from the two of them, and many colleagues from participating countries are already standing around it. ??If a five-star red flag can be added to it. The effect should be very explosive. China''s aviation industry is now at a stage where the development speed is so fast that not only outsiders, but also our own people sometimes cannot keep up with the reality. Therefore, whether externally or internally, we urgently need to seize every opportunity to carry out publicity. Establish the image of Chinese products first. ?However, his fantasy was quickly dispelled by Guo Ruiqing next to him: Well... the situation at that time was still different from now, so we cant generalize. The latter was changing film in his camera and replied without raising his head: "When we participated in the NH90 project, on the one hand, NATO seemed to be monolithic, without so many obvious internal flaws later. On the other hand, the image of our Chinese products was still completely negative. Others would definitely follow our lead in publicity. Cut it, otherwise it may be difficult to sell..." ? ? Guo Ruiqing is about 10 years older than Yang Quanzhi, and has been promoted to middle management during the head office era. The latter was still an ordinary grassroots employee at the time, and gradually became successful after the two companies separated. Different experiences naturally lead to different perspectives on things. Im a little impressed when you say that. ?Yang Quanzhi took his eyes away from the M88 display board: It seems that there was a fraud scandal involving Japanese companies in Europe back then. It is said that it was because of the NH90 project that they pulled up the carrots and brought out the mud? Indeed it is. ??Guo Ruiqing has a relatively rich understanding of events in his early years: "Those devil companies are very clever when it comes to counterfeiting. They even cut corners and cut materials. If you use it according to the normal margin, you won''t find any problems for ten or eight years. If we hadn''t happened to They have seized a very narrow opportunity on a part of NH90, I guess they can continue to hide it..." Speaking of this matter, normal Chinese people, especially members of the aviation industry system, would feel proud. Therefore, Guo Ruiqing also spent about ten minutes with great interest in talking about a series of wonderful operations that year. Of course, to put it bluntly, they still have their own problems. Finally, Guo Ruiqing concluded: If there was no such thing as quality inspection fraud, we would never have been able to find this fatal loophole..." After finishing speaking, he hung the camera around his neck again and prepared to take pictures of the details of the EF2000. The modified self-use J-10A is somewhat similar to the Typhoon in its cross-sectional shape. Especially the idea of ??mainly using the relatively flat belly space to carry a large amount of ammunition can be said to coincide completely. In contrast, the Rafale prefers to carry a larger number of small-sized ammunition in the under-wing space. ? Only the centerline pylon on the belly of the aircraft has been additionally reinforced to carry ASMPA-R missiles equipped with nuclear warheads as a theoretical air-based nuclear deterrent. ?However, similar to the situation of the Chinese Air Force, the French Air Force actually has no nuclear-related positions, so this nuclear deterrent also only exists in theory. Just when Guo Ruiqing raised his camera and was about to press the shutter, Yang Quanzhi, who was hurrying to catch up with him, was still stuck on the topic. So Lao Guo, according to what you just said, there happens to be a component on the NH90 that is designed according to the upper limit of the models performance, so it was exposed that the Japanese had falsified the test report... Obviously, Yang Quanzhi had been thinking about this matter just now, so his reaction was half a beat slow: Doesnt that mean that this matter has been planned since I participated in the design of NH90? It would be outrageous to say it is a coincidence..." "Of course." ? Guo Ruiqing almost lay on the ground, taking photos of the position of the EF2000 belly pylon, and replied. "I go" ?Yang Quanzhi looked dumbfounded: Whose idea is this? It can be so long-term... Wait a minute...you dont know? ??Guo Ruiqing stopped pressing the shutter and looked up at Yang Quanzhi in disbelief. ?But he quickly reacted: "Oh yes...you should have been at the Institute of Special Technology at that time, so it''s normal that you haven''t heard of it." ?This reaction made Yang Quanzhi a little confused: WellI dont know what I dont know NoI mean For a moment, he felt that his language module might be burned. The entire NH90/Zhi-12 project, as well as the series of things that followed, were all done by Mr. Chang back then. ?? Guo Ruiqing deliberately lowered his voice, causing Yang Quanzhi, who was still hesitating to organize his words, to fall silent immediately. ?After a while, the latter spoke again: "Mr. Chang...you mean...that...that Mr. Chang?" ??He said and pointed to the M88 engine promotional sign next to him. Although he didnt say it directly, the meaning was already obvious. "if not?" ??Guo Ruiqing got up from the ground and patted the dirt on himself: There is no second CEO Chang in our aviation industry system, right? "ah?" ?Although he had already made some speculations just now, Yang Quanzhi still felt a little scared after getting the concrete results: I heard...the reason why we at Rongfei divided the J-10 into two versions, A and E, was also the suggestion left by Mr. Chang back then. ?Yang Quanzhi is not from a technical background, and he was transferred to Rongfei not long ago, so he mainly hears and hears a lot of news. Unexpectedly, Guo Ruiqing nodded without surprise: I know that. "You know this as well?" ?Yang Quanzhi felt a little embarrassed What I thought was a secret turned out to be something that everyone in the world knew about. "certainly." ??Guo Ruiqing continued to make another cut: Moreover, not only the J-10E, but also the J-7F and the J-9, which have been mainly exported in recent years, were all launched when Mr. Chang was still at the head office. ?) ! ?Yang Quanzhi opened his mouth several times in succession, but no sound came out. Just stared at Guo Ruiqing and blinked. ?His current feelings can be summed up as - No, Im going to fight Mr. Chang on the opposite side? You should know that before this trip, the leader had a special talk with him. It is said that he hopes that in recent years, the aviation industry group will not be surpassed by the aviation power group in terms of export volume. He also said that this task is very stressful. Although the opponent does not have much pure export business yet, it must not be taken lightly. At that time, he felt that the leadership was a bit unfounded. The result is now You tell me that the leading models currently earning foreign exchange from exports are all leftovers from the rival companys senior executives? ?Laughing to death, no wonder the leader vaccinated him in advance... ??Isn''t this equivalent to learning the basic rules of Go on the front foot, and then playing ten rounds of chess with Nie Sheng on the back foot? So...why didnt Mr. Chang stay at the group level when we split up? ?Yang Quanzhi asked in a bitter tone. "because" ??Guo Ruiqing also scratched his hair in distress: Because it is Mr. Changs personal opinion to separate the aero-engines to form a new group (End of this chapter) Chapter 910 new potential customers Chapter 910 New Potential Customers Leisure time is always short. According to convention, two professional days will be set up before the official opening of the air show. Thats right, before the opening. Because the opening ceremony is for the melon-eating public, it will be held on the first day of the opening day. ?Professional Day is only open to large Krypton households such as the military, defense companies, and military contractors. ??And of course there is the media. In fact, it is better to be more low-key. Because there is a high entry threshold, the passenger flow in these two days is not large. There is no pressure for air show organizers. But its different for exhibitors After all, an air show is not a car show, and you cannot expect individual users to buy your fighter jets or anti-aircraft missiles. Whether its publicity or order-taking, it actually all refers to the professional day ahead. The day the Chinese delegation arrived was Tuesday, August 14th. In other words, they actually only had one full day to prepare. Even though someone from the French agency has already called them, time is still tight. Therefore, until the morning of the opening day, ground crews were still surrounding several aircraft, performing maintenance and bomb hanging procedures. In order to ensure the range and take into account the requirements of the countries they pass through, the three fighter jets at the exhibition only hung three auxiliary fuel tanks during the transition process. But at the air show, you must show your capabilities to potential customers. Especially J-10E. As a serious third-generation aircraft and the main product of China Aviation Industry at this air show, it has changed the mindset that China''s products can only rely on cost-effectiveness to win in the past. Although the overall performance is still a little behind compared to several of the latest third- and semi-generation fighter aircraft that have just entered service or have not yet entered service, at least in terms of design and production levels, they are completely comparable to mainstream models brought by other countries. ??If it were not for the conspicuous August 1st Army emblem on the wing and the AVIC logo on the vertical tail, most people would probably think that this is a fighter jet from a certain European country. "It''s a pity that the airborne ammunition we have on hand is still a little short of variety..." Yang Quanzhi stood near the entrance of the Huaxia exhibition area and watched several technicians quickly replace the auxiliary fuel tank on the innermost pylon of the J-10E wing with a C802K anti-ship missile. In fact, the radar equipped with the J-10A/E does not have a ground search function. Even for sea surfaces with less clutter, the effective detection range is not optimistic. At least not as good as the JH-7 parked not far away. Hence, although the C802K can be connected to the fire control system through the data bus, it is definitely not in the list of commonly used ammunition for the J-10. ?However, Chinas current main equipment of precision guided munitions is still the imported KAB series. ??After traveling thousands of miles to participate in an air show, it is impossible to use your own aircraft to advertise other people''s bombs. Hence, we can only temporarily use anti-ship missiles to make up the numbers. but. Beyond everyones expectations. It was just a matter of making up the numbers, but it really produced a good effect. ?Shortly after the mounts of the three aircraft were switched to ground display status, a group of visitors wearing military uniforms walked into the Huaxia exhibition area. After roughly circling around in a circle, we finally stopped in front of the J-10E. At this time, Guo Ruiqing was instructing several technicians from the Third Aerospace Academy to modify the exhibition settings. Yang Quanzhi hurried over and patted him on the shoulder: Lao Guo, there seem to be a few Thai Air Force officers over there? Hearing these words, the former turned around suddenly, and then noticed a few people over there gathered next to the J-10E booth, chattering without knowing what they were talking about. The Thai army can be regarded as a regular customer of Chinese equipment in a sense. However, compared with other users who were forced to choose China when they were "desperate", Thailand received generally good treatment in the arms sales market, with more options to choose from, so it was more picky. So the previous purchases were basically army and some naval equipment. As for the Air Force ?Only many years ago, Rongfei Group tried to export J-7M fighter jets to it, but unsurprisingly failed to use second-hand F16A/B. At least I have had some dealings with him. Its just that the guys brought by China now can be said to be a shotgun for a cannon. Don''t talk about F16A, even if you face F16C, you don''t feel guilty. Take two people to take care of it and see what indicators they focus on and what models of competing products they mainly consider. ??Guo Ruiqing said to Yang Quanzhi. "yes!" The latter came with a mission, so he quickly called a few people and prepared to move forward. "Wait a moment" Perhaps because he was worried that Yang Quanzhi was eager to achieve great results, Guo Ruiqing called him from behind again at this time: Pay attention to your image and attitude. Be enthusiastic, but also be reserved and dont be too deliberate. In matters like arms sales, the core is to look at the needs of the other party. Rushing to sell products online may not necessarily yield good results. ?Yang Quanzhi has just been transferred to Rongfei not long ago, and his enthusiasm in this area is still lacking. ?However, Guo Ruiqing is obviously a little worried. Before Yang Quanzhi could get close, several people from the Thai delegation over there took the initiative to surround him. Hello, I am Assistant Commander-in-Chief of the Thai Air Force, Padma Kitita. The first officer wearing the rank of lieutenant general stepped forward and shook hands with Yang Quanzhi. I am Yang Quanzhi from China Aviation Industry Group. If you have any questions related to the model and my countrys export policy, you can consult me, or I can contact a higher-level leader. ??Although Yang Quanzhi is not a professional technician, he did a lot of homework before coming here, and he is by no means a novice. We just have the idea of ??updating the fighter model, but we dont have any specific plans yet Lieutenant General Jedita This is not entirely a joke. In fact, the batch of F5 fighter jets currently equipped by the Thai Air Force are indeed very old, and the F16s purchased previously are not only second-hand but also early models, and even require an additional upgrade to obtain beyond-visual-range air combat capabilities. Hence, I have been thinking about changing my clothes a few years ago. But the plan cannot keep up with the changes. The financial crisis in 1998 almost brought the entire Southeast Asian economy to collapse, and Thailand was the first to bear the brunt. It was not until the new century that the reliance on Internet companies that gradually began to spread from developed countries gradually eased. It doesnt matter. Your country is also a traditional business partner of our country. You can definitely contact us first. ?Yang Quanzhi also heard about the situation in the other party''s country. ?Furthermore, Bangkok Airways is also the first foreign user of the MA60 regional jet. There is still potential for transaction after all. After some simple greetings, Jedita got straight to the point: We just saw that the J-10E exhibited by your company is equipped with two C802K anti-ship missiles. So does this mean that this model can carry out sea strike missions? This question can be said to be completely beyond Yang Quanzhi''s expectations. ?Before departure, the group leaders publicity focus for the J-10A was ground attack and air interception. Including the two 2/5 pylons under the wing, four equally unformulated Thunderbolt 12 medium-range air-to-air bombs were specially mounted on composite pylons that have not yet been finalized. In the end, it was the two C802Ks that were hung up to recharge that attracted the attention of customers... ?Of course, although he was complaining in his heart, Yang Quanzhis response was not slow: The radar of the J-10E is not optimized specifically for detecting sea surface targets, but if necessary, it can indeed carry up to two C802K anti-ship missiles with a range of 120km. As he spoke, he took Lieutenant General Gidita back to the J-10E booth: Of course, the J-10E uses data bus technology and can also be seamlessly adapted to other new anti-ship munitions developed by our country in the future. ?This is not false propaganda. The problem with the J-10s C802K is that the 1473 radars detection range of sea targets, especially small and medium-sized targets, is likely to not reach the range of the latter, resulting in a waste of missile performance. But other than that, there really are no other problems. (End of this chapter) Chapter 911 Needle "wind" relative to Chapter 911 Confronting the "Wind" ? Just when Yang Quanzhi used his sharp tongue to promote various aspects of the J-10Es performance to Lieutenant General Gidita. Over Bushell Airport. ??The much-anticipated flight show has also begun. In fact, in the traditional air show schedule, there is generally no tendency to arrange flight performances into professional days. First of all, there are too few visitors, so it would be a waste to take off all the time. Secondly, at the beginning, the people who participated in the professional day were really professional, and it was rare for superficial performance demonstrations such as flight demonstrations to affect the final decision. But later, more and more organizers discovered that buying planes in some countries is as careless as buying food. ?Furthermore, the person who makes the final decision may not really understand the Air Force. So the air show can really have a certain publicity effect. In the end, we simply set up different performance content every day. ? And this time, since it is an air show held in Paris, the first one to take off is of course the model belonging to the host country. ?The all-black Rafale C01. ?Due to funding problems, only one prototype of the Rafale B and C models was built, and only the carrier-based M model, M01 and M02, was completed according to the original plan. From flight testing to participation in air shows, all tasks can only be completed by these four aircraft. Fortunately, the M88-2 engine has now been buffed by Chang Haonan. Although the performance indicators may not be very advanced, there is absolutely no problem in terms of stability. Even under such high-intensity continuous rotation, the fault interval above the standard line is still guaranteed. ??Looking at his own plane, which was close to being in service, flashing and moving in mid-air, Serge Dassault, who was sitting in the VIP seat, finally showed a happy smile. The Rafale fighter jet adopts a close-coupled canard layout. The distance between the canard and the main wing is very close. It focuses on using the close-coupling effect to increase the unsteady vortex lift and delay the stall of the main wing. ?This design makes the Rafale''s performance, especially its agility, better at low altitudes and low speeds, making it more suitable for ground attack missions. ?Of course, this is also an old tradition of Dassault products. French fighters have always had shortcomings in terms of power, so they are better at, or in other words, have to be good at differentiated competition. The Rafale fighter jet is equipped with the REB2 passive phased array radar produced by Thomson, which is better than the mechanical scanning radar on Typhoon, JAS39 and F16 in terms of scanning frequency, detection accuracy and multi-target tracking capabilities. This kind of direct diss about an opponent''s model is naturally impossible for Dassault, as the boss, to say it himself. Hence, it was Ed Steiner who was responsible for introducing the specific situation of Rafale fighter jets to several exhibition representatives from Egypt, Greece, South Korea, Austria and Singapore. But I heard that Lockheed Martin already has plans to upgrade the active phased array radar to the F16C/D? ??A lieutenant colonel from the Greek Air Force next to him put down his telescope and said to Ed Steiner. Thats just a plan after all. The latter shrugged and replied: And it only upgrades the phased array antenna, and cannot replace the underlying design of the radar backend. In addition, our Rafale is far superior to the F16C in terms of maneuverability and bomb load. ?Ed Steiner is familiar with publicity tactics, and he mentions the shortcomings of his own planes in passing. For example, due to aerodynamic design limitations, the radar antenna area of ??the Rafale is almost the smallest among the third-generation aircraft. ?This results in RBE2, as a more advanced electronic scanning radar, being inferior to the last-generation mechanical scanning radar equipped by its peers in terms of hard indicators such as detection range and anti-interference ability. And its difficult to circumvent this problem with a simple upgrade. ?However, after all, several of the audience members were from the Air Force, and someone quickly asked related questions: The phased array radar generates more heat and requires greater power than the mechanical scanning radar. Can your model ensure the stability and reliability of the operating state? The person who spoke was a colonel from Austria. In fact, Ed Steiner knew very well that this person came here to cause trouble. Because Austria actually decided to join the EF2000 research and development program a year ago, it is simply impossible to buy Rafale again. But the air show was open, and it was impossible for him to drive people away from the viewing platform, so he had to bite the bullet and explain: The Rafale fighter jet uses two of the latest M88-2 engines. While providing a maximum thrust of 7,600kg, it can also take into account a maximum power generation capacity of 25kw, so there is no need to worry about this..." It is another typical strategy of avoiding important matters and taking advantage of the light. Since the nose of the aircraft is already very small, the Rafale does not retain a large number of fuel lines for liquid cooling of the radar like the J-11B and Su-27SM. This results in the failure rate of RBE2 being indeed high. So, Ed Steiner only answered half of the Austrian colonels questions. Fortunately, at this time, the first round of aerial performances had ended, and bursts of applause erupted from the auditorium, interrupting the conversation between several people. In fact, the Rafale fighter jet should be considered a frequent visitor to air shows throughout the 1990s. Hardly absent. But the significance of todays appearance is obviously extraordinary. After the collapse of Operation Allied Force in 1999, the relationship between Snecma and General Electric fell into a freezing point, and the M88 also stalled due to the loss of technical support and important parts provided by the latter. By 2000, all four Rafale prototypes were effectively grounded. ?So rumors soon spread that the Rafale might be canceled directly like the Mirage 4000. As for Snecmas cooperation with China... At least at the time, everyone basically took it as a joke. Hence, several countries that originally had the intention to purchase have also turned to other models. This time, the Dassault Group persuaded the French Aerospace Industry Association to postpone the air show to August specifically to allow the Rafale to be unveiled in a state close to service and to shatter all doubts about this model. Judging from the results, it should be considered a success. On the other side of the viewing platform, Andy Latham, the team representative of BAE Systems, occupied the position with the best view of the audience. At this time, he was holding a telephoto camera and pointed it at the aircraft that was heading towards the aircraft. There was a burst of continuous shooting from the tail of the Rafale fighter jet taxiing on the tarmac. So...could it be that the Chinese helped Snecma solve the reliability problem of the M88 engine? ?Latham put down the camera and turned to Professor Roger Elinor next to him. The tone was full of disbelief. It is true that the Chinese people publicly demonstrated their third-generation turbofan engine in 1999. But developing a model yourself and helping others improve an immature model are two completely different concepts. The former can be played freely on a piece of white paper, while the latter is equivalent to dancing in shackles. It can be said that the difficulty is actually higher. What''s more, it has only been about a year and a half since Snecma cooperated with Huaxia. Even if we do not consider the issue of mutual trust in the handover process between the two parties, this efficiency is a bit too exaggerated. I said several years ago that Chinas level in the field of aero-engine design is likely to far exceed our expectations. Professor Elinor, on the other hand, looked calm: "When I was wiping the **** of the EJ200 engine before, I accidentally reviewed a paper written by a Chinese scholar about unstructured overlapping grid generation. At that time, I knew that they must have something hidden in their hands. Less good stuff. So...that paper inspired you? Latham looked like a curious baby. "no." Even though it had been many years, Elinor had even forgotten who the author of that article was, but when he heard this question, he still showed an expression of gritted teeth: The author stopped writing just before reaching the most critical point At this point, Elinor calmed down a little, and then continued to explain: I spent about a year afterwards, but I still couldnt figure out how to realize the grid form mentioned in that article on an engineering level. Fortunately, our laboratory later built a brand new supercomputer, and the calculation speed is thousands of times faster than before, so even if we use the old method, we can still solve the problem. Ah this ?Latham never expected this kind of plot, but he didnt know how to comfort him, so he had to change the subject: Soif everything goes well with the Rafale project, will it pose a threat to our EF2000 in the international market? Its unlikely. Eleanors answer was very straightforward: "Although the Rafale and our Typhoon have their own strengths in design, the overall performance is too much affected by the engine. I saw the data on their M88-2 exhibition board two days ago, and the gap compared to the EJ200 is very obvious. " In this way, even in the low-altitude and low-speed areas where the Rafale is better, we can still have a clear advantage. Only the mechanical scanning radar is a hidden danger, so you BAE have to speed up the progress..." As if to verify his statement. As soon as Elinor finished speaking, an EF2000 prototype numbered DA7 began to accelerate from the distant runway. Compared to the gentle movements of its competitors just now, the takeoff of this plane can be said to be extremely violent With almost half the length of the runway as the former, it relied on the aerodynamic torque brought by the long-distance coupled canards and the total thrust of the two EJ200s of 18 tons to complete the takeoff in an almost vertical attitude. Even has a transition configuration with three auxiliary fuel tanks. A truly strong person does not need to conduct word-of-mouth propaganda at all. ?When Typhoon''s performance was about halfway through, Ed Steiner on the other side realized that his side would probably lose completely in today''s air-to-air contest. The size of a mid-sized machine is matched with two high-performance mid-range thrusters with a thrust-to-weight ratio close to 10. Even in low-altitude and low-speed areas where it is not good at, it still brings extremely incredible agility and maneuverability. Obviously, if you want to face off against an old rival head-on, you cannot do it solely by relying on the current technical state of the M88-2... (End of this chapter) Chapter 912 Not all orders can be accepted Chapter 912 Not all orders can be accepted The two flight performances of the J-10E were arranged in the afternoon of the second day of the Professional Day and the first day of the Public Open Day respectively. It can also be considered a good time period. As the first overseas display of the domestically produced third-generation aircraft, the media naturally did not spare any space and carried out an overwhelming publicity. Of course, in the core military fan circle, rumors about "the J-10 is likely to have another upgraded model" have long been circulated. Many people are basically sure that the Chinese Air Force will be equipped with another similar overall design. But the slightly larger model trades part of its agility and high-speed performance for greater multi-purpose potential. ?However, after all, most people who eat melons may not even be able to distinguish between F15 and Su-27, let alone pay attention to such minutiae. ?As long as they can see their own models competing with foreign fighters on TV, and they don''t look inferior at all, it is enough. ?Especially before the opening of the air show, the photo that Guo Ruiqing happened to take was quoted in almost all news ?Four canard layout fighter jets are parked together in a head-to-head posture. Compared with the conventional layout models around them, after a little color adjustment, it can really make people feel a bit sci-fi. ??Some newspaper media even gave this photo the title "The First Year of the Duck Wing" in order to attract attention. ??Although Chang Haonan seems to be a bit rubbish, this word formation method seems to be really popular. Over time, several foreign media even adopted this statement. This exhibition, at least from the publicity level, the effect is quite good, ?? In the office of the director of the Commission of Science, Technology and Industry for National Defense, Li Zhongyi put several newspapers in different languages ??on Ding Gaoheng''s desk, and then sat on the sofa next to Chang Haonan: According to the situation reported by the Aviation Technology Group, two countries have also expressed their intention to place orders with us, but unfortunately we have not been able to actually close the deal. While listening to Li Zhongyi''s report, Ding Gaoheng sat up straight, opened one of the newspapers and read the contents. He can directly understand English and Russian. As for other languages, Li Zhongyi has found a translator to mark the general meaning in the margins of the page. It doesnt matter. After Li Zhongyi finished speaking, Ding Gaoheng replied in a relaxed tone: "In the past, people who came to our country to buy equipment... were actually not just equipment. They came to our country to buy any products, either because they were cheap and large in quantity, or because they were politically desperate and couldn''t find other sellers. It was always a kind of Forced behavior. But in the future, more and more countries will definitely choose us because of the performance of our products or the good relationship with our country. But changing your mindset is difficult and takes time. At this point, the latter paused for a moment, replaced the newspaper in his hand with another, and then continued: Another point is that military equipment procurement is a relatively sensitive and special business, and aircraft are products that can be highly customized, so orders are rarely finalized on the spot at the exhibition. "Those who signed the air show actually started the negotiations many years ago. They just found a commemorative or promotional occasion to announce it. This may be somewhat different from the industry you were engaged in before, Comrade Zhongyi. After all, Li Zhongyi has just been transferred from the petrochemical industry system to the Science and Technology Commission, so it is normal that he does not know much about the details of some military fields. Speaking of intention orders. Chang Haonan saw that Li Zhongyi next to him looked a little embarrassed, so he changed the topic appropriately: Although our aviation power group did not bring any physical exhibits to participate this time, we almost got an order. "oh?" Ding Gaoheng put down the newspaper and looked up at Chang Haonan with curious eyes: Is there anything else? After the conglomerate restructuring of the military industry system, overall operational autonomy has actually been decentralized. So unless there is an order with a particularly huge impact, ordinary bits and pieces, as well as those that are just intentional contacts, will not be fed back to Ding Gaoheng''s level. I just saw the report this morning. Chang Haonan explained: On the second day of the professional day of the air show, Hindustan Aeronautics Limited (HAL) submitted a letter of inquiry to Snecma, stating that they were selecting power for the mass-produced version of the LCA fighter jet, and asked the French if they had plans to export the M88. Subsequent models. Because according to the previous contract, if the M88 is exported, it needs to be approved by us and Snecma at the same time, so this matter came to me in a roundabout way. At the end of the sentence, there was clearly a smile in his tone. After all, as a reborn person, its really hard not to laugh when mentioning LCAs Glory. ?At this moment, LCA has not yet revealed its many amazing features, and it also achieved its first flight not long ago. In everyones eyes, it seems to be a promising model It took almost twelve or three years for the J-10 to make its first flight from project establishment to first flight. As an attempt by a developing country to start from scratch, LCAs first flight in 2017 is not an exaggeration. In the eyes of China at this time, it is considered a strong opponent. So, Ding Gaohengs attitude is rather serious: Sowhats your attitude? I havent replied yet, but I think I will refuse... "really." Ding Gaoheng nodded with satisfaction: After all, we are our strategic rivals, and we cannot do this kind of thing to help the opponent build its core military strength. Chang Haonanxin said that if the Indian Air Force can really regard LCA as a core combat force, then I will sign and approve it as soon as I return. The sooner the better. ?Of course, this cannot be said directly. Ahem He cleared his throat and spoke again: "Actually, I don''t have much confidence in Stan Air. If accidents occur continuously after replacing the new engine, or the project progress is seriously delayed, wouldn''t it damage our own brand..." In fact, Chang Haonan insisted on working with Snecma at the beginning. Signing a joint research and development contract, and giving up a large advance payment for this, indeed has the intention to contain India in the future. But what he was thinking about at that time was to strangle the possibility of Rafale being exported to South Asia in the future. ?The conscience of heaven and earth, I never expected that LCA would intervene in such a thing. "Then...it shouldn''t be a problem, right?" Ding Gaoheng feels that Chang Haonans concerns are a bit exaggerated: Generally speaking, if there is no problem with the engine itself... the project should still be guaranteed. ?The latter cannot explain this kind of thing at all. ?Have never seen the magic of HAL, it is indeed difficult to believe that there is such an incredible aviation manufacturing company. So I had to change my words: "And another point is that LCA has now chosen the F404 as the power for the first flight. There is no need to change the model at all. The performance of the M88-2 currently does not meet the requirements for a single engine to propel a medium-sized aircraft. I think it is very Maybe its just using M88 as a bargaining chip to lower the price from General Electric. "This is a very common operation. I think Comrade Haonan''s concerns are reasonable." Li Zhongyi, who had been silent just now, also intervened: The bidding process itself will actually involve a lot of costs. If it is very certain that it will be used as a bargaining chip and there is no possibility of winning the bid, there is really no need to accompany it unless there are additional publicity considerations. The topics related to the air show soon came to an end. Ding Gaoheng specially brought Chang Haonan here today, naturally not just to talk about such a trivial matter as the Paris Air Show. ?Of course, strictly speaking, it was Li Zhongyi who really wanted to interview Chang Haonan. Comrade Haonan. The latter took out a portfolio from the briefcase beside him and handed it to Chang Haonan: At the beginning of the month, a Norwegian company submitted an order to build eight LNG ships to Hudong Shipyard. "What the Hudong factory means is that there should be no major problems with the ship itself, but the order specifically emphasizes the installation of the evaporative gas re-liquefaction system patented by your Torch Group, so specifically can this contract be signed and how should it be signed? I also want to ask for your opinion. Originally, they were planning to contact you directly, but they couldnt contact you some time ago, so they reported it through the Shipbuilding Industry Group, and finally they reached me. Logically speaking, if the senior managers of an enterprise like the Aviation Power Group lose contact for a long time, it can be treated as an accident. ?However, after all, Chang Haonan has been on the front line of scientific research for a long time, and his situation is really special, so it is generally not surprising that he cannot be found. The problem is definitely not a problem. Our BOG reliquefaction system is fully adapted to the Gas-Transport cargo tank technology route of the Hudong plant. If combined with a natural gas-powered diesel engine, it can almost ensure zero loss during transportation..." While speaking, Chang Haonan opened the seal and took out several thick multi-lingual materials: But our LNG ship... we havent even built the first one for domestic trial use. Does anyone really dare to order 8 ships at once? As of 2001, most of the existing orders for LNG ships are still in the hands of Japanese shipyards. The new growth is mainly in South Korea. As for Huaxia, it is not very convincing in the field of high-end ships. You must know that the price of each large LNG ship of 135,000 cubic meters is basically more than 150 million US dollars. As for the Gas-Transport cargo tank, due to its large weight and volume, the construction cost is even higher, and the quoted price is generally US$170-180 million. 8 ships, which is US$1.4 billion. Nearly 12 billion yuan ?Even domestic companies would not dare to place such an order Huaxia Petrochemical has only signed a contract for two ships at present, and it is required to start construction on one of them first, and then decide on the second ship after passing the acceptance inspection. A foreign company, why? Thats why the Hudong Factory was very cautious, because they were worried about whether there might be any traps. Li Zhongyi explained: However, we have also looked at it with some experts in international commercial law. Apart from the fact that the advance payment ratio is slightly lower, there seems to be no other problems. With curiosity, Chang Haonan opened the document with a Chinese cover. We are new to the game and have insufficient bargaining power. With an advance payment of 10%, there is really nothing to complain about. If youre sure theres no problem He originally wanted to say that if there was no problem, he would boldly accept the order. But at this moment, he suddenly caught a glimpse of the equity structure of Party Bs company during background research. ?Norway is a Zall company, holding 70% of the shares. The other 30% is miscellaneous, with ingredients from everywhere. "etc" Chang Haonan suddenly changed the subject: "Director Li, please tell the Hudong factory that no decision should be made on this order yet..." (End of this chapter) Chapter 913 Someone is rushing to jump into the pit? Chapter 913 Someone is rushing to jump into the pit? Chance is Zhuoer Company, the worlds second largest offshore oil/gas drilling equipment operating company. It can be regarded as the top giant in the offshore oil and gas field, especially in the cold zone offshore oil and gas field. ??If we can really win this large order of US$1.4 billion from the other party, it will be huge good news for the Hudong Factory, which is just starting out in this field, and even for the entire Chinese shipbuilding industry. But the problem is that this Zhuoer Group is definitely not a fuel-efficient lamp. ? Their classic routine is to first place several huge orders through several different subsidiaries, and use this as a bargaining chip to require a lower down payment ratio. Wait until the order is almost completed, and then suddenly cancel part of it due to bankruptcy protection or other reasons. ?The final stage of the completion of such a huge order is when Party Bs capital chain is the most vulnerable. If Party B suddenly loses a large order, it will basically fall into difficulties or even directly become insolvent. The delivery of the part that has not been canceled will also be delayed as a result. As a result, high liquidated damages were incurred. For Party B, the only way out is to resell the products that were completed immediately but the order was canceled at a low price. But the problem is that the application scope of offshore oil and gas equipment suitable for cold waters is extremely narrow. It is almost impossible to avoid Xizhuoer Company. ?At this time, another of their subsidiaries will take the order at a super low price, achieving more than one fish. ? ? If you include the liquidated damages mentioned above, you can often get a batch of equipment for free. ?Even the shipyard has to pay back the money. As for you talking about submitting it to arbitration? nonexistent. The contract will stipulate that dispute arbitration will be conducted in the buyers country, which is Norway. The result...dont even think about it. Do you understand "I have the final right to interpret legal provisions"? In short, almost all of the worlds leading marine equipment manufacturers have been fooled by them. In the previous life, the large-scale offshore engineering company was directly bankrupted by such a combination of punches. ??Had it not been for the State-owned Assets Supervision and Administration Commission to take care of the situation, I''m afraid there would have been a series of attempts to acquire assets at low prices and then reorganize them. Chang Haonan quickly turned to the back of the information text in his hand, and sure enough he saw the clause "If a dispute occurs, the arbitration shall be conducted in Party A''s country" in the inconspicuous remarks clause. ?Then theres nothing to worry about. ?At this time, Li Zhongyi next to him saw Chang Haonan stop his movements, and he also said: Comrade Haonan, this...must give the Hudong Factory a suitable reason, right? These days, the country is not particularly wary of these Western companies. It can only be said that the brainwashing effect of the spirit of contract is quite powerful. ?But having said that, it is only 2001, and it is indeed still early to start the big ship and offshore project, so Chang Haonan cannot use the sword of the Qing Dynasty to kill the officials of the Ming Dynasty. Fortunately, Xizhaoer Company has a bad record even in Europe, so it is not difficult to find some strong arguments: The company behind this contract is Zall, the same Norwegian company that deceived the Black Sea Shipyard into dismantling the Ulyanovsk through contract fraud a few years ago. Old Wu told me about this before, saying that their boss was John Frederiksen, known as the Norwegian shipping king, who made his fortune through this method. "So, although it doesn''t mean that you can''t do business with Zhuoer Company, you must be extra careful. In this contract, there is only 10% advance payment, and if any dispute occurs, it must be settled in Party A''s country. , obviously here to collect wool. ?This explanation highlights the truth and falsehood. ??Wu Yifan did talk to Chang Haonan about the Ulyanovsk, but as to whether Frederiksen was mentioned in it... ?Im afraid even the former himself has forgotten it. But what Chang Haonan said is absolutely true. So, it was a matter of course to convince Ding Gaoheng and Li Zhongyi. Of course, the main reason for this is the foresight shown by Chang Haonan in the past. ??If someone else were here, even if they said the same thing, it might not be so easy. After being interrupted by such an incident, Chang Haonan also realized that he had been staying in the new laboratory outside the Fifth Ring Road during this period. ?Although that place was put into use in advance, it has not yet been officially registered, so the contact information written to the outside world, as well as several administrative staff of the laboratory, are actually still at the old campus of Beijing Airlines. If you dont know the situation, its really not easy to find others. Thinking of this, Chang Haonan did not go home immediately after leaving the Science and Industry Committee, but made a special trip back to school. As a result, as soon as he arrived at the door of the office, he ran into Wang Jie who was running up the stairs in a hurry. Professor Chang ?Wang Jie''s breathing was quite rapid, and there was sweat on his face and head. It was obvious that he came in a hurry. Wang Jie? ?Chang Haonan opened the office door and motioned for the other party to follow him in: Didnt I tell you that you can take half a month off in late August and return to work in September? Why did you come to school? ??He turned on the air conditioner as he spoke, and took out a bottle of water from the carton next to him and handed it to Wang Jie. Graduate students should theoretically have about one and a half months of summer vacation. Although most PhDs cannot enjoy it. ?However, Chang Haonan is not that inappropriate, and he is also worried that some of his students are too tight, so he will give them a holiday ranging from half a month to a month depending on the situation. Teacher Liu and Teacher Lei have an urgent report to submit to you. I happened to be on vacation, so I brought it over. ?Wang Jie, who finally regained his breath, took out a file bag from his schoolbag. ?However, it is different from common portfolios. The opening is not tied with a rope, but with a seal. ?Of course, it does not have any legal confidentiality effect. It just has a function similar to that of fire paint, letting the recipient know that "this thing has not been opened." Is there someone who wants to order 8 LNG ships from Hudong Plant? ?Chang Haonan naturally thought that Liu Fangping and Lei Zhixing also wanted to say this. Although the timeliness is a bit poor, considering that it is delivered from Shanghai to Beijing via human express delivery, the time is not outrageous. ?However, Wang Jie hesitated when faced with this problem: "Well" Yes, but not quite. Anyway, please take it apart and take a look. The situation is a bit complicated and its hard to explain clearly in a few sentences... ?Chang Haonan stood up, took out the letter opener from the pen holder, and opened the seal at the mouth of the bag. Inside is a printed document. It is not very long, probably less than 10 pages. So it didnt take long for Chang Haonan to finish reading it. "so" He showed an indescribable expression: Based on GTTs attitude, you speculate that Samsung Offshore may want to compete with us for this LNG ship order? In 2001, South Korea was actually a new player in the high-end marine equipment market and had no experience like China. So, it is normal to be greedy for this billion-dollar deal. Thats right. ?Wang Jie nodded, and then explained: "In the past two months, among the delegation sent by GTT Company to the Hudong Plant, several people have always intentionally or unintentionally been getting closer to us and the comrades from the Hudong Plant, and then asked about some things that have nothing to do with the cargo tank system. Things happened, so I served some snacks. Later, we and the comrades from the factory security department discovered that one or two of them may have been bribed by South Koreas Samsung Offshore Engineering, but there is no direct evidence yet. ?Chang Haonan touched his chin and did not answer immediately. Commercial espionage is not quite the same as military espionage. Most cases are marginal. After all, when others cooperate with you, a lot of business secrets will be involved in the process. Hence, in practice, even if the evidence is solid, it is difficult to convict. Unless someone climbed through the window to open the safe in the middle of the night and was caught. ?Since there is no direct evidence at the moment, there is definitely no way to expel or arrest the other party through official means. ? And if GTT is rashly replaced, the other party may not agree, and even if it is replaced, it will be difficult to achieve a permanent cure. On the contrary, this definite goal has been lost. So, after thinking for a while, Chang Haonan had no choice but to remind: Let the security department in Shanghai keep a closer eye. Of course, the more important thing is that you yourself must be more vigilant and pay attention to confidentiality regulations. In any case, China is not prepared to take on this hugely risky order. If Samsung Offshore Engineering is willing to be taken advantage of, he will not stop it. ?However, Wang Jies brows did not relax because of this: "Actually, Mr. Chang... I''m not worried about the business issues at the Hudong factory." "How to say?" ?Chang Haonan raised his head curiously. What do you think Wang Jie hesitated a little when he said this, but continued: Is Samsung Offshore interested in our BOG reliquefaction technology? (End of this chapter) Chapter 914 Do Koreans want to steal technology? Chapter 914: Koreans want to steal technology? No way ?Chang Haonan thinks this guess is a bit outrageous. Its not that he believes in the character of Koreans. Rather, the core technology of the entire BOG reliquefaction system is in the hands of Torch Group, or even more strictly speaking, it is in his own hands. Let alone going through the Hudong Factory, even if Liu Fangping and Lei Zhixing were bribed, it would be impossible to obtain complete technical information. "But... the Hudong plant is responsible for the overall construction of the entire ship after all, and GTT''s technical team is deeply involved in the design of the core cargo tank system of the entire ship. In this process, it is inevitable to come into contact with the BOG reliquefaction system. design" ??As a doctoral student from an old military school like Bingcheng University of Technology, Wang Jie has absolutely nothing to say in terms of vigilance. Wait a minute ?Chang Haonan raised his hand to interrupt the other party, and then further explained: "What the Hudong factory has in hand is just a deeply customized solution for their ship, or at most their ship type. We have registered patents, so why do we need commercial espionage? Go to the Patent Office to check. Just know..." Uh...Teacher, shouldnt there be a lot of unclear words and intentional omissions in this kind of core patent? Even if it is found, there shouldnt be any operability, right? ?Wang Jie is also a veteran and knows these scientific research tricks very well. However, Chang Haonans two lifetime experiences clearly showed that he had taken precautions in this regard: The plan in the hands of the Hudong Factory only has parameters, not even a design method, let alone operability ?As Wang Jie just said, as long as you are willing, it is easy to copy a specific plan from the shipyard. In fact, this thing is not confidential at all. But it doesnt make any sense to Samsung Offshore. It is equivalent to the last big question in a math exam. You only copied the final result but did not write down the intermediate process. Still not able to get points. ?This time, Wang Jie didnt reply and seemed to be a little convinced. Seeing this, Chang Haonan continued to comfort him: "Furthermore, our BOG reliquefaction system will affect the structural strength of the cargo tank itself, which can only be used with the Gas-Transport technology of double-layer invar steel plates. Samsung Offshore chose the relatively lightweight Technigaz system. Basically Its not suitable, even if you buy my technology from me openly, it will be useless..." Having said this, the stone hanging in Wang Jie''s heart naturally fell to the ground. "Teacher, if there is nothing else, I will..." He has already begun to think about his vacation life in the next half month. "Wait a moment." ?Chang Haonan quickly stopped Wang Jie, who was halfway up and had his **** raised. The latters heart skipped a beat: Teacher, I have bought all my tickets to go home... Dont be afraid, Im not asking you to work overtime. Chang Haonan waved his hand; "Now the intensity of the tasks at the shipyard is a little lower. In addition, the two master''s students taught by Teacher Liu and Teacher Lei can also go there to help. So you should report to the school after the start of next semester. There is a junior brother who you should take care of. " As usual, Chang Haonan also recruited a doctorate and a master''s degree this year. ??However, I have not encountered people like Li Yabo and Wang Jie whose abilities far exceed the average level of their academic level. As usual, the master''s degree students come from our school, but they need to take half a year of classes first, while the doctoral students come from Beijing Institute of Technology, which is also one of the seven national defense universities. They are also majoring in mechanics, so they are very suitable for Wang Jie, who has relatively rich experience. "oh" The latter breathed a sigh of relief: No problem, I will take good care of my junior brother Also, be mentally prepared this holiday season. Chang Haonan smiled: "After next semester, I should consider letting you take charge of the project independently." "Huh?" ?Wang Jie was completely shocked: I...I take charge of the project? At the beginning of the 21st century, most research groups did not have many projects to work on, so it was not as common as it would be ten or twenty years later for graduate students to actually lead projects. At least Wang Jie studied for a master''s degree at Bingcheng University of Technology for three years, and the projects were basically hosted by several teachers. Sooner or later you have to be on your own. Chang Haonan said: Dont put too much burden on me. I will definitely provide you with the necessary guidance in the beginning. However, what I ask of you is that you cant be like an ordinary graduate student. You take one step at a time when I tell you to do it. At least you must draw inferences from one example..." ??Wang Jie is a relatively capable doctoral student. If he can only act according to the teacher''s baton during his three to four years of doctoral study, it will actually be detrimental to his development. ?Of course, after putting pressure on you, you also need to give some motivation: In addition, since you have been put in charge of the project, starting from next semester, your graduate student subsidy will definitely be based on a higher standard. ?Sure enough, Wang Jies eyes suddenly brightened. In terms of giving money, Chang Haonan is not short of funds at all. Therefore, not to mention being in the ranks of graduate student subsidies, even compared with the salary outside, the labor fee he pays is considered a high salary. ?After watching Wang Jie leave, Chang Haonan quickly sat back behind his desk, spread out a piece of paper and started writing furiously. Actually, the reason why he stopped the former just now was because he wanted the other party to help him deliver a document to Shanghai. ?The relationship between the Torch Laboratory and the Hudong Factory is rather subtle. Mainly because Chang Haonan''s own identity is relatively subtle. He is not only Party B involved in the LNG ship project, but also the leader of the aviation power group. If he directly calls a unit of a shipbuilding industry group to arrange work, it will always be suspected of crossing the line. So, anything that happened before was conveyed through Wang Jie, Lei Zhixing or Liu Fangping. ??If you encounter something that is not convenient to talk about on the phone, you have to rely on these three old people to run errands. However, considering that the young man finally returned home, he still couldnt say it in the end ?At the moment, we are still between the third and fourth major railway speed increases. Taking a slightly farther train can easily take more than 48 hours. ?Half-month vacation seems to be a long time, but the time left for the other party to be at home is actually only about ten days. Fortunately, Wang Jie doesnt have to do this. ?With the resources that Chang Haonan can use now, he can write a proposal and give it to Li Zhongyi, and then arrange it through the Science and Technology Committee. Thats what he is doing now. The general meaning is also very simple. Since Samsung Offshore wants to have a foothold in this project, we might as well use our plan and put on a good show for the Norwegians and Koreans at the same time. ?Now Zaoer has taken the initiative to find the Hudong factory. If we directly reject the order as previously decided, it would be too strange, and there is no guarantee that Koreans will not become suspicious. Therefore, you still have to act like you are negotiating hard with Xi Zhuoer and want to win the order. You should seize the point that the advance payment ratio is too low to make it appear more real. ?According to the eagerness of Koreans to rush for orders, in order to suppress the Hudong factory, they may even offer to lower the advance payment ratio on the basis of 10%. ?In this way, Xizhuoer Company found that Hudong is not so easily fooled, and there is a high probability that it will turn to Samsung Offshore Engineering next door. No matter what the final result is, Samsung will inevitably suffer a lot of blood. As its main competitor, Huaxia Shipbuilding Industry can reap the benefits... (End of this chapter) Chapter 915 M883 engine upgrade plan Chapter 915 M88-3 engine upgrade plan ??Despite having just experienced a round of economic crisis, the 2001 Paris Air Show quickly showed its huge influence. On the one hand, due to the superposition of various factors, the financial crisis originating from Asia in this timeline did not expand to the level that swept the world in the previous generation. About three years has been enough for some countries with stronger resilience to slow down. Come in one breath. More importantly, the sudden occurrence of the Allied action and the dramatic results that followed made many medium-sized countries realize that- Although the Cold War has ended, for small countries, the end of the Cold War is the beginning of danger. Furthermore, it is really useful for national defense construction. ? ? In the Balkans, an anti-aircraft gun from the 1950s could shoot down a B2. If it had more advanced equipment, I dont even dare to think about what it could shoot down. ??Although the starting point and thinking path of this idea are actually biased, after all, the results of the B2 really have little to do with the anti-aircraft artillery. But the final conclusion is correct. As for the arms race, once one country starts to engage in it, other countries that have no idea will follow suit. So, even before the public opening day of the air show ended, the news of the first order had already spread. ? Some media broke the news that a North African country purchased a large number of improved Su-27SM and Su-27UBM from Sukhoi and has signed a detailed supply contract. Compared with the basic models exported to China, India, Indonesia and Annan in the past, these two new models have greatly improved in terms of avionics, bomb load and mobility. Even the radar has been replaced with a flat-panel slot antenna that is more in line with the requirements of the times. This news was quickly confirmed by Algeria and Sukhoi. And the former also stated that this round of procurement not only involves the Air Force, but also includes 6 battalions of Buk anti-aircraft missiles and two F22A frigates from China. It can be seen that this country, which has just recovered from civil strife a few years ago, has become a lot richer by relying on the nationalized oil and gas fields. It seems that this has been used as a switch. In less than half a month, more than ten countries have officially announced new equipment procurement decisions, or at least plans with clear timetables and selection ranges. ?Austria and Norway stated that they will purchase EF2000 as their countrys new generation main fighter aircraft. ?Morocco signed a contract with Lockheed Martin to purchase 25 F16C/D fighter jets from the latter to deal with air threats from neighboring countries. ??The Greek Air Force did not specifically state its aviation equipment update plan, but decided to upgrade some of the 5V55R missiles mixed in the S300 air defense system to 48N6E. ? In this way, the S300 only needs to be deployed on Crete, and its range can cover the entire southern Aegean Sea and the sky above Cyprus. The Turkish Air Force, subject to the cooling of relations with the United States, is unable to further purchase more F16s and can only temporarily respond with strong protests. Saudi Arabia has included F15, EF2000 and Rafale into the selection scope at the same time. The Thai Air Force has publicly stated that it has inspected Swedens JAS39C/D and Chinas J-10E, and believes that the latter is more in line with its tactical needs, but it has not yet decided whether to maintain the original 24 aircraft or reduce it to 12 aircraft. ? Brazil has announced an arms renewal plan involving 36 aircraft and more than 1,500 munitions of various types. It will also choose between JAS39C/D and J-10E. ?South Korea has determined that its F-X plan to replace the F4 and F5 fighter jets will not conduct a public bidding, but will directly finalize the model as the F15K. Even China, whose international image has gradually transformed from an equipment importing country to an equipment exporting country, also quietly signed the third batch of S300PMU2 procurement contracts for a total of 12 battalions... In short, everyone who eats meat eats meat, and those who drink soup drink soup. No matter how bad they are, they can still rub the bottom of the bowl. But there is one exception. That is France as the host of the air show. After deliberately postponing the air show for two months and performing a fierce operation, let alone eat meat and drink soup to the bottom of the bowl. Not even smell the fragrance. ?Of course, Airbus still made a lot of money as usual. But this is obviously not the same thing. Is the money the most important thing in arms procurement? of course not. Its about expanding influence! Why does Thailand actively consider the J-10E? Performance is only secondary. ?The core reason is that in 1998, China became the anchor of Asia''s finance, while Japan, which has stronger economic strength, declined at a rapid pace. Although the core reason for doing so was to protect Hong Kong Island, it objectively prevented Southeast Asia, especially Thailand, which bore the brunt, from slipping into an even more uncontrollable abyss. This kind of equipment procurement will obviously in turn enhance China''s influence in countries of the same size. ?For example, the choice of Brazilians is obviously affected by this. However, many countries that were originally equipped with Mirage series fighters, such as Morocco and Saudi Arabia, have decisively abandoned Dassaults subsequent models in this round of equipment updates. This is obviously not a good trend. ??In short, watching others successfully close deals one by one at the air show held by them, the French really experienced the feeling of being NTRed. ?So, after the air show ended, they naturally started a round of review. First of all, the EUs development momentum in these years is absolutely incredible, and it even (thinks it) shows signs of overtaking the United States. ? And France has always regarded itself as the leader of the European Union, so from the perspective of international influence, it must be stronger than in the past. So the current situation is definitely not because France is failing. ?Well, it must be a product problem. ?Of course, Dassault itself recognizes this. After all, at the air show, Rafales performance was indeed inferior compared to the EF2000 next door. Therefore, except for the French Navy, which is eagerly waiting for the dumplings to be cooked, and has first purchased a batch of 12 mass-produced Rafale M aircraft with F1 technical status, the rest of the orders will be delivered after being upgraded to F2 technical status. The most important one is naturally the power upgrade that Ed Steiner had already thought of on the day of the air show. The thrust of the M88-2 at sea level is only 7.6 tons. In order to reduce its own weight, the ejection nozzle further reduces the working condition adjustment range. Compared to the EJ200, which has a thrust of 9 tons in the basic model, it does pale in comparison. So much so that even in the low-altitude and low-speed maneuvers that it is best at, it was beaten. Therefore, Dassault learned from the painful experience and quickly put pressure on Snecma. For the latter, Party As request is like a reminder. In this case, the Chinese happen to have an almost ready M88-3 plan. You dont even have to worry about which choice to make... So, early September. Just when Chang Haonan had arranged his work for the next month in advance and was waiting to see whether the big news would come as scheduled, he suddenly received a request from Liu Yongyong to come to the capital to report to him. Mr. Chang, Snecma suddenly expressed yesterday that it hopes to speed up the work with us and put the next improved version of M88 into mass production as soon as possible. ??Liu Yongquan said as he put a memorandum of the meeting on Chang Haonan''s desk. According to regulations, this kind of international cooperation needs to be submitted to the group headquarters for approval at startup and major milestones, but the intermediate process can be independently decided by each secondary unit. ?However, Chang Haonan is the chief designer of Turbofan 10 after all, and it is not an exaggeration to say that he is the founder of Chinas aerospace industry in the new era. So Liu Yongquan was used to asking him for instructions and reports. So urgent? ?Chang Haonan took the folder with some confusion and then opened it: Isnt the M88-2 just put into mass production? Isnt Snecma ready to familiarize itself with the production process? ??If we follow what China calls it, the current progress of M88-2 is similar to that of Turbofan 10. Both have completed the design and finalization but have not yet reached production finalization. Logically speaking, further upgrades should not be considered so soon. And one more thing. Chang Haonan has basically arranged the technical solution for the M88-3. In addition to performance upgrades, the most important thing is to use this improved model to help China test some technologies, and to use the design of special-shaped air film holes to make turbine blade outlets. Business. But the problem is that the annual production capacity of nearly 200 engines at Liming Plant is "planned production capacity." It hasnt landed yet. At present, only the prototype machine in the Torch Laboratory is undergoing trial production. When the ultra-short laser processing equipment is finalized, Liming Factory will set up the production line. Optimistic estimates will not be until the second half of next year to the beginning of the next year. So the original timetable was for the M88-3 to be put into production after mid-2003. ?Snecma will then discover that it is building new turbine blades too slowly. At this time, China came again as the savior. Perfect. However, looking at the eagerness shown by the French now, it feels like the entire progress will be at least a year ahead of schedule... Liu Yongquan didnt think so much about Chang Haonan, he just answered whatever he wanted: I guess it was after the Paris Air Show that I found out that there were no orders coming in, so I became anxious. No order received? Chang Haonan briefly recalled the news he heard during this period, and found that he seemed to have never heard of the part related to Dassault: It seems that there really isnt ?But then, Chang Haonan changed the subject: "But to be honest, this actually has little to do with the performance of the aircraft... The main reason is that there is a problem with Dassault Rafale''s promotional strategy, and the other is that it does not target the right market. You are like South Korea, where it is obvious that only American aircraft are available. No matter how hard you try, you can''t win..." Hmm But I heard from comrades who came back from the air show that Rafale and Typhoon are flight performances performed by the front and rear legs, and the performance gap is quite obvious. Liu Yongquan opened his mouth and said. Although the Aviation Power Group did not send a delegation to participate in the exhibition, as an old man from the head office, Liu Yongquan has many acquaintances in the aviation industry group next door, and it is inevitable that he will interact with them at work. What kind of maneuverability can be seen in the flight performance... Chang Haonan couldnt help but complain: They are all fancy moves at low altitude and low overload. At most, it only depends on the power level and agility. As for Typhoon At this point, he suddenly paused. Chang Haonan originally wanted to say that Typhoon''s EJ200 actually has a design flaw. Although the paper data is superb, because there is a missing support point in front of the engine fan, it may cause excessive casing deformation during high overload operations and damage the compressor. Blades, so the actual maneuverability simply cannot reach the design level. ??However, even the British army themselves may not be aware of this flaw at the moment. It was only later exposed after the Typhoon repeatedly gave incredible and disastrous performances in many simulated air battles. He knew the flaws of M88 without having been exposed to M88 before. This performance was already outrageous. ?However, I can barely explain it, saying that it is a reasonable deduction from the problems of the CFM56 core machine. However, the EJ200 is a newly designed thing from the inside out, and it is a bit scary to be able to point out detailed problems thousands of kilometers away. So, Chang Haonan had to change his statement: For a multinational joint research and development project like Typhoon, there is a lot of room for wrangling in later upgrades and maintenance. You will regret it when you buy it back... Liu Yongquan did not doubt his presence and just replied: But after all, Typhoon has already received several orders, and it is inevitable that the French will be anxious..." "Fine" Chang Haonan didnt say anything more: You should have received the technical plan I wrote to you before? Liu Yongquan nodded: "Received. We will use a three-dimensional scoop-shaped air film hole similar to the turbofan 10 to improve the atomization ability of the fuel nozzle in the combustion chamber and further increase the temperature in front of the turbine. Then we will redesign the outer edge of the high-pressure compressor blade to control Boundary layer separation Just follow that, the air film holes and fuel nozzles are ready-made, you just need to re-adapt to the compressor conditions. Chang Haonan said as he closed the file again and put it back in the drawer next to him: However, we cant help the French work overtime in vain. Remember to increase the strength of Dassault and ask them to come up with the gyro-stabilized platform of the optoelectronic pod and the technology of the uncooled thermal imaging camera as soon as possible... (End of this chapter) Chapter 916 smartass Chapter 916 Being smart ?Compared to the happy scene here in the aviation industry system, the ship system next door has not yet waited for its own good days. In fact, in 2001, China was already ranked third in the world in terms of shipbuilding tonnage alone, and was far behind Germany, which was ranked fourth. The problem is, first of all, this third place is only about one-third of the top two. ?Of course, its okay if thats all. After all, Chinas aviation industry is not even ranked among the top three in the world. However, compared to the aviation manufacturing industry, which is a high value-added industry, most of the shipbuilding business currently in China''s hands is a properly labor-intensive industry. Its really hard money to make. Even making a profit at a loss. ?It is precisely because of this that Hudong Plant wanted to take a huge risk and place an order for 8 LNG ships from Zhuoer Group. After all, from the current perspective, even if the business itself suffers a small loss, as long as it can take this opportunity to join the table of high-end offshore engineering equipment, there will be profits later. I cant say that my thinking is wrong, but Xi Zhuoer didnt plan to eat at the same table with you at all. Instead, he planned to overturn the table from the beginning. ?However, in 2001, everyone was still quite superstitious about the so-called "Western contract spirit". So, even after receiving the reply from the Commission of Science, Technology and Industry for National Defense, many people still feel that they should at least talk to the other party. ?Of course, this was originally Chang Haonan''s strategy, so it might as well be a fake show. As for the result... At almost the same time Liu Yongquan approached Chang Haonan. In the office building of Hudong Shipyard. ?? Cai Honggui, the general manager of the LNG ship project, also held a thick document and opened the office door of Chen Weiquan, deputy general manager of the Hudong plant. Mr. Chen. ??Cai Honggui was not wearing a tie, and the top two buttons of his shirt were unbuttoned. He was obviously in a low mood: The Norwegian company was very strict with the conditions and firmly refused to agree to our request to increase the advance payment to at least 25%. After finishing speaking, he put the document in his hand on the desk and sat across from Chen Weiquan. But Chen Weiquan didn''t even look at it. He just got up and poured a glass of water for Cai Honggui and placed it in front of the latter: 10% is indeed too low. ?? Chen Weiquan came to the office window and looked at the first LNG ship being built for Huaxia Petrochemical in the distance: For a high-value-added ship like this, the international rule is to charge 30% to 50% as a deposit. Although we are new players in this field, it is reasonable to lower some requirements, but if it is lower than 25%, we have to take into account the risks emphasized to us by the Science and Technology Commission. As the leader of the shipyard, Chen Weiquan naturally knew the whole plan, that is, he no longer considered the possibility of receiving this order, and only conducted false negotiations with Xizhuoer Company, thereby luring Samsung Offshore Engineering, which was next door and coveted this order, into the trap. ?However, in order to enhance the realism of the scene, he did not tell the people below the entire plan, only the part where the Science and Technology Commission believed that the deposit was too low and there were risks. Of course I understand these principles. ??Cai Honggui sighed, then picked up the paper cup and took a sip of water: But I feel that if we dont seize this opportunity, we dont know how long it will take to truly gain recognition from the international market... As the person in charge of the specific implementation negotiations, he has always had the idea in his heart that it is possible to win this huge order. So we put in a lot of effort in negotiations, hoping that the other company would agree to increase the deposit ratio to 25%. The result was a complete failure. "Ah-" Hearing this, Chen Weiquan showed a smile: Perhaps...it wont take too long. "Um?" Cai Honggui suddenly raised his head and subconsciously let go of the paper cup that was almost flattened with his right hand: "what do you mean" ??Chen Weiquan did not answer immediately, but sat back behind the desk again: What I can tell you now is that Xizhuoer Group never thought about doing this business with us from the very beginning! The reason why they proposed such a low 10% advance payment is to eat our liquidated damages midway, and the capital behind this Party A is the Norwegian shipping kings Xedro Company... ? ? ??He spent a few minutes and told Cai Honggui how to make a long story short. ?The conscience of heaven and earth, Comrade Cai Honggui, a leader with a simple technical worker background, never thought that such a shameless way could be possible? Everybody is numb. Thenif thats the case, why do the organization send me there ?? Chen Wei Quanxin said that it is for this reason that he is sending you. If the person in charge of the negotiation is replaced by a bright-tongued negotiator, if the other party is persuaded, then should we accept the order or not? But it would be too hurtful to say it openly, so he used a more euphemistic expression: The organization knows your abilities, so they sent you to act out a fake show like this. In this case, our opponent, Samsung Offshore Engineering, will definitely be unable to sit still and want to grab this order from us. When they suffer from this, its time for us to play our part. Actually, Chen Weiquan and even Chang Haonan themselves had no idea about the last part. Samsung Offshore Engineering is, after all, part of the Samsung Group. It has a big business and a big business. Even if it is taken over by Zaoer Company, it will not be unable to recover or go bankrupt directly. But in any case, it is definitely beneficial to the overall situation of this LNG ship competition to make the main competitors lose a huge amount of money and have to worry about the messy lawsuits. Thats why we did this. Cai Honggui, who was on the opposite side, also realized that he was being used, but he couldn''t say anything. Fortunately, after Chen Weiquans explanation, he felt less uncomfortable: Then later, should we continue to talk with the Norwegian company? ??Chen Weiquan took out a box of yellow pandas from his pocket and divided one between himself and Cai Honggui: "We still need to maintain contact, but face-to-face negotiations...probably won''t happen." I estimate that after we have been busy for half a month, the Koreans should take some action... Just as Chen Weiquan guessed. ?Samsung Offshore Engineering, which has been paying attention to the Hudong plant, actually took action when the former started to implement negotiations. ??It''s just that the form of the action is different from what everyone, including Chang Haonan, expected... South Korea. Gyeongsangnam-do, Geoje City. ??In the Geoje Shipyard of Samsung Offshore Engineering, a middle-aged white woman dressed as an engineer carried a briefcase with a combination lock and approached the shipyard manager Yin Jong-hyun. "This is the information I got from my colleagues in China, including the details of their contact with the Norwegian Party A, as well as the specific information of the LNG ship under construction, including the information on that ship that you specifically asked Detailed design of BOG reliquefaction system. ?Alissa Clermont, one of GTTs technical representatives at Samsung Offshore. ?However, it is obvious that her business is not limited to the technical level. ?Yin Zhongxian took the briefcase with one hand and put an inconspicuous card into the opponent''s hand with the other hand: Thank you very much, Ms. Clermont. ?Clment slightly adjusted the angle of his palm and looked at the shining silver card. The account opening identity is an old farmer from Chungcheongnam-do, and the password is posted on the back of the card. Yin Zhongxian explained in a low voice. ?Then, Clemont nodded and released both hands at the same time. Remember, this reliquefaction system has a very complicated patent on the part connected to the cargo tank. No matter what you want to do, you have to bypass this, otherwise even the gods will not be able to win the lawsuit. Before turning around and leaving, she lowered her head and gave instructions. "rest assured." Yin Zhongxians attention has been completely attracted by the thing in his hand: I also studied shipbuilding. I dare not say anything else, but I can still understand patents... (End of this chapter) Chapter 917 “Minor repairs” Chapter 917 Minor Repairs ?Compared to the aviation manufacturing industry, which has attracted much attention, and the vehicle manufacturing industry, which is closely related to people''s daily lives, the shipbuilding industry in sea, land and air is actually an industry with huge influence, but its presence is not too strong. At least that was the case before the advent of the self-media era. Just like this time, a Norwegian company with a background of Zhuoer Capital approached Huaxia Shipyard to produce ultra-high value-added products such as LNG ships, and then the order was dramatically intercepted by a Korean company. This is actually quite shocking in the industry. news. After all, no matter how bad Xizhuoer is, he is still one of the top giants in the global marine engineering and energy fields. Moreover, the demand for LNG and LPG ships has indeed surged around the world in recent years. Since the outside world does not know the details of the negotiations between the two parties, it is naturally impossible to judge whether it is a scam or a real business. But Chang Haonan has not seen relevant news in any public news reports. ?There were only a few mentions in some industry newspapers. ?Of course, this is a good thing to some extent. ??This list from Zall cannot be accepted under any circumstances. Instead, it will be dumped to the Koreans as a hot potato. However, the details here certainly cannot be publicized through the media. ?The people who eat melons can only see the most superficial things and think that Samsung Offshore Engineering really stole the order. Once public opinion begins to ferment, no one can guarantee whether there will be unforeseen incidents. So there is an old saying in China that you can make a fortune by muttering... Ahem In short, shipbuilding is no better than building aircraft. No matter how fast the technological breakthrough is, it may not reach a major milestone in a few months or even a few years. ??If you want to see a result on the LNG ship matter, you have to wait for a year or two no matter what. Therefore, after the Hudong Factory had determined to avoid this pitfall, Chang Haonan did not continue to pay close attention to the matter. ?After all, it is not his main job. He only needs to be the Party B of the BOG reliquefaction system. The one who really added some extra workload to Chang Haonan in early September was the French. After coming to Beijing to report the situation that day, Liu Yongquan turned around and reported his situation and requirements to his partners. Snecma and Dassault were immediately shocked after hearing this. They knew before that the Chinese people immediately started research and development work on deeper modifications after improving the M88-2. And the project progresses very quickly. But precisely because of the fast progress, everyone subconsciously thought that this should be a transitional model, the type with limited performance improvement but that can be used immediately. Thats why the French Air Force dared to make the decision to postpone the equipment update schedule and wait until it is upgraded to the F2 technical status before receiving it It is only expected to be delayed by a few months. For projects undertaken by Europeans, that cannot be considered a delay. ??And there are some fairly new Mirage 2000C/Ds on hand that can be used, unlike the navy next door that can only use F8FR. As a result, I held a meeting with the 606 institute and found that the upgrade plan proposed by the latter mainly involved three pieces. Turbine, combustion chamber and high pressure compressor These three parts are usually collectively referred to as the core engine of the aviation engine... In addition, a new receiver is reduced in weight through diamond-shaped ribs, and the tail nozzle is changed from an ejection type to a convergence-expansion type. ?That''s it, you''ve modified the entire engine from the outside to the inside, except for the fan and afterburner. Co-authoring is just to prepare a new one? Therefore, after Ian Vista saw this document at a technical meeting, he felt dizzy on the spot and almost fell over with a black eye. "Liu, I admit that your improvement plan is very... bold." ??Vestal really couldnt find any other words to describe it, so he had no choice but to comment like this: But we... still hope to come up with this improvement plan as soon as possible and upgrade the Rafale to a more mature F2 technology. As long as some envelopes can be optimized or a little thrust can be improved..." Mr. Vesta, you dont need to worry about the progress. Liu Yongquan touched his bald head and showed a confident smile: "Although according to the technical documents, the parts involved in this upgrade and improvement are indeed spread throughout the entire engine, but in general, it is still based on the M88-2 Minor repairs will not change the underlying design of the core machine itself. Small repairs? ?Vesta picked up the memo on the table again and quickly flipped through it to the end: Butthere are a total of 70 upgrades written in it? Well...not all of them are important. Liu Yongquan also glanced down at the technical documents to hide the flash of embarrassment on his face. Actually, he specifically asked the people below to remove these 70 items, just to show that this upgrade requires a lot of work, and many of them can get some benefits from the opponent. Who would have thought that others would think the changes were too much. After a short pause, he continued to add: And, the most important thing is that almost all of them are mature technologies that we have verified on other models. Now if we apply them to the M88, the risks and development cycle are absolutely controllable. This sentence is half true and half false. The new air film hole design and combustion chamber atomization nozzle can indeed be adapted. Although it is impossible to copy the compressor as it is, the use of slits and curved sweep designs to control boundary layer separation is also what Chang Haonan learned from the turbojet 14. An idea that I have been using since the beginning. ?However, the new lightweight receiver and the convergent expansion nozzle with better low-altitude adjustment capabilities are all parts that Chang Haonan plans to use the M88-3 as a guinea pig for verification and testing. ?Of course, these two places do not involve the core part of the engine, so Liu Yongquans statement that the risks and cycles are controllable is not a lie. "this" Hearing Liu Yongquan''s assurance, Vesta hesitated a little. To be honest, the improvement of the M88-2 by Institute 606 was so fast that Snecma engineers ended it before they could even react. As a result, many places can only be understood slowly after going back. At present, M88-3 involves more improvement projects, which is also a good opportunity to practice. ?Looking at Vesta, who was bowing his head and thinking silently, the former knew that his attitude had begun to loosen, so he continued to increase the pressure. Mr. Vesta, when we had our last meeting, you and Mr. Ed Steiner mentioned that they hoped to improve Rafales performance against EF2000 through this upgrade. In our opinion, if we really want to take advantage of the competition, we must make a major upgrade to the M88 engine. He said as he took out two more pages from the folder next to him and handed them to the other party: This is the expected performance index of the M88-3 model after completing the upgrade according to our plan. Please take a look and see if you are satisfied with it. ??Vesta never expected that such a heavy thing had not been taken out just now, so he quickly received it. Turbine front temperature increased from 1740K to 1830-1850K. (Note: There is no need to replace the hot end material and thermal insulation coating)] Considering that the Rafales aerodynamic design is not geared towards high-speed maneuverability, it is considered to further increase the total pressure ratio to 30.5 to enhance subsonic thrust and fuel consumption. The air intake volume per second is increased by 7% on the original basis, used to increase thrust and provide cooling... Comprehensive calculation, after the upgrade is completed, the thrust at sea level is expected to increase from 7600kg to 8400kg, the total weight is reduced from 830kg to 790kg, and the fuel consumption rate... ?This document is not large. ?But even before he reached the second page, Vesta was convinced. Previously, Snecmas internal judgment and expectation was to increase the output by 5% based on the M88-2 and further optimize the output under large overload at medium and low altitudes... The result in front of us is completely a radical change. ?For this reason, even if you take some risks, it is definitely worth it! (End of this chapter) Chapter 927 Behind the scenes and in front of the stage Chapter 927 Behind the scenes and in front of the stage Just as Chang Haonan promised Mr. Zhang, it took him less than three hours to sort out the report. According to what Lao Wu found out last year, among the 19 Tu-160s, it is clear that they can still fly, but in fact only 10 are left. Of course, these 10 can fly. Weapons systems and the like, there is no guarantee what the situation will be. After all, Ermao has long since lost the Kh55 cruise missile and cannot conduct combat tests at all. As for the remaining 9 aircraft, if you dismantle them and put the good parts together, you can probably barely build 2-3 aircraft. This is something made during the Soviet period. The degree of standardization and quality level are acceptable, but they still dare to play like this. If the aircraft was built in the years after it was dismantled, its hard to say whether it can still fly after parts are replaced like this. Excluding the eight that the Russians had already occupied in advance. Therefore, under the most optimistic scenario, there are still 5 aircraft left for China. Of course, based on Lao Wus experience, listening to the people on Ermaos side has to be somewhat discounted, so its good to be able to get 4 of them safely. As for the delayed supply of Motor Sich and the relevant evidence and written documents of the deposit owed by Ermao officials, they are directly stored in the archives of the Aerospace Power Group. It can be said that after several years of planning by Chang Haonan, everything is ready in terms of hardware conditions. What is really lacking is the opportunity to enter the game and the determination of the superiors. Now, the opportunity is before us. Chang Haonan''s report is intended to help his superiors make up their minds. After submitting the report, Chang Haonan finally got some time to catch up on his sleep in the room. When he woke up again, it was already the afternoon of September 12th. After finishing washing as quickly as possible, he turned on the TV in the room. There is no dedicated news channel these days, so if he wants to watch news, he can only switch to CCTV. As expected, the situation was similar to the previous life. After a delay of about ten hours, the domestic public media has begun to report on yesterday''s attack on a large scale. Then, he looked at sets 4 and 7 again. The content is basically the same. Except for Mr. Bush''s speech last night, Eastern Time, this morning, Beijing time, there was a formulaic rhetoric condemning indiscriminate attacks and paying tribute to the victims. Even after changing the channel, it can be seamlessly connected to the previous program. Obviously, this was issued in a press release from above. At the beginning of the 21st century, the response to news programs was generally slow, and the broadcast format was a bit monotonous. Although later programs that invite several guests to the studio for live discussions have appeared, they are not yet popular. Of course, being slow also has its benefits. For events of major impact like yesterday''s, broadcasting must be disciplined to avoid irreparable adverse effects at critical moments. Moreover, slow publishing of news also gives the editorial department more time to cross-verify the news itself. Just like in the following years, the speed of news transmission will become faster and faster, but all media will do anything to grab the first release, and some will not even verify the authenticity of the news... It''s hard to say it''s completely an improvement. Unfortunately, due to the special nature of the Jingxi Hotel, it has not yet been connected to the Internet, so Chang Haonan was unable to see the reaction of the melon-eaters to this matter. It is foreseeable that the overall tendency should not be much different. However, considering that after the head-on confrontation in early 1996, the conflicts between the two sides have occurred on a non-public level, especially since there are no "two major hatreds" at the turn of the century, so they may not behave like the above. I was so obvious. Chang Haonan still remembers that when he and a few friends heard the news for the first time in his previous life, it was a complete surprise. In this way, he stared at the TV screen and sat in trance for a long time. Until a doorbell woke him up from his thoughts. Chang Haonan quickly straightened the shirt he was wearing, and then opened the door. As expected, standing outside the door were Fu Youquan and Ding Gaoheng. "Mr. Fu, Director Ding." Chang Haonan said, taking off his suit jacket from the hanger by the door, and then followed the two of them out of the room while getting dressed. "This morning, the chief personally presided over an expanded meeting." Fu Youquan walked half a step in front of Chang Haonan and introduced to him what happened in the past few hours: "Your previous guess was correct. When the White House communicated with us, they said that they had identified the mastermind of this attack and confirmed that he was in Aiwuhan." "The other party very...frankly stated that if Aiwuhan refuses to hand over the relevant persons responsible, then they will consider launching a military operation for the purpose of counter-terrorism. We hope that we can understand and support it." Chang Haonan was able to get a position in that seminar yesterday because Fu Youquan specifically named him. However, the expanded meeting in the morning could not reach the former level no matter how much it was expanded. Therefore, I can only listen to two pieces of news. Fortunately, Fu Youquan was born in the military and has been a staff officer for a long time. He has received special training in relaying key contents, so there is no need to worry about information distortion in the process. "Have they made a public statement over there?" Chang Haonan recalled that there seemed to be no relevant content mentioned in the TV news just now. "not yet." Fu Youquan shook his head: "This is what the other party''s leader informed us over the phone." "However, in order to quell public anger, I estimate that the press conference will be held soon, and the content will be nothing more than this." "Then our response..." Chang Haonan asked tentatively. "The phone call was made early this morning, so we didn''t make a clear statement immediately. However, during the meeting just now, several leaders agreed in principle to your suggestion." Fu Youquan''s face showed relief: "Of course, if you want to implement your idea, you still need to determine some details, such as whether allowing US military aircraft, even transport planes, to land at our airport will cause public opinion risks, and how to technically deploy the C17 Providing guarantees for models we have never had contact with is also a problem that needs to be solved. Although they talk about difficulties, everyone in the know understands that when a plan starts to consider these minutiae issues, it means that it is about to be implemented. So, this is definitely good news. After a slight pause, Fu Youquan continued: "In addition, it is similar to your estimate. The CSTO has also unanimously passed the decision to allow non-combat units of the US military to use the airspace and airports in Central Asia. It is expected that this afternoon, the chief will communicate with the Kremlin for the second time. We will call them to discuss the issue of denuclearization with them in detail..." Obviously, the meeting in the morning was quite informative. Even if Fu Youquan only focused on the key points, he couldn''t finish it until he walked out of the gate of Jingxi Hotel and came to the parking lot. Standing next to the car, Fu Youquan raised his hand and looked at his watch: "In the afternoon, I will have a staff meeting with the Jincheng Military Region, so I won''t continue to see you off." So the three of them said goodbye. A few minutes later, the minibus started moving steadily. But this time, only Chang Haonan and Ding Gaoheng were sitting on it. "Director Ding, after yesterday''s meeting, Mr. Zhang suddenly asked me to stay, so I didn''t have time to talk to you about some things..." According to normal circumstances, Chang Haonan''s suggestions should first go through Ding Gaoheng and then be reported to higher levels. Just like the time before last. In fact, this time, Chang Haonan originally planned to follow this process - According to his previous estimates, it would take three to five days from the moment the incident occurred until he found the opportunity to join the decision-making process. It was enough for him to submit a formal written material to Ding Gaoheng. As a result, Fu Youquan and General Zhang made a seamless surprise attack. After the incident, they took him directly from the conference room of the Science and Technology Commission to the conference room of the West Beijing Hotel. There was no chance to explain the situation to Ding Gaoheng. I had no choice but to obey the authority in a hurry. However, now that the dust has settled, Chang Haonan, as the other party''s subordinate, should explain his feelings and reasons. But before he could finish speaking, Ding Gaoheng raised his hand in the air, indicating that he did not need to continue speaking: "Lao Fu has already told me what happened after yesterday''s meeting." "You know, I may be transferred to other positions in a short time." "So, even if you are not invited to the Jingxi Hotel this time, but hand over the report to me as usual, I should directly connect you with Lao Fu, and then I will submit it myself..." Ding Gaoheng said this and did not continue. But Chang Haonan still heard the meaning of the other party''s words - As one''s own role grows larger and the rate of information dissemination explodes, it has become difficult to continue to conceal one''s identity as in the past. In addition, Ding Gaoheng himself will leave the Science and Technology Commission system in at most one and a half years. No matter which one of the three current deputy directors the new leader is, he does not hold a military position. Even the Science and Technology Commission itself is gradually downplaying its militarized nature. In this way, the channels for communicating with the military system through superiors will soon be closed. So, for Chang Haonan. Its time to move from behind the scenes to the front of the stage. (End of chapter) Chapter 926 You said you didnt prepare in advance? Chapter 926: You still said you were not prepared in advance? ?This idea proposed by Chang Haonan is a little jumpy. Due to complex historical and practical reasons, China generally does not participate in nuclear disarmament or nuclear arms control negotiations. Don''t ask, just ask to support global denuclearization. But do you really want me to destroy nuclear weapons? Then I''m sorry to say goodbye. Even if there is really no way to force participation, it is just a formality. It is rare to take the initiative and rush to join in trouble. Affected by this inertia, although the issue of nuclear disarmament in Ermao is a special case among special cases, China only participated in the formulation and approval of relevant resolutions at the Security Council level and did not directly participate in the negotiations. Therefore, none of the three people around him could understand Chang Haonan''s brain circuit at the first time. Having said this, the latter naturally went straight to the ball: "As far as I know, there are still 19 Tu-160 bombers obtained when the alliance disintegrated in the Priluki Air Force Base in Ermao." "According to the agreement reached in 1994, these nuclear-related equipment should be destroyed like those intercontinental missiles, but Russia has always hoped to obtain eight of them to offset the debts that the Ermao has owed in the energy field over the years." "There was nothing wrong with this matter originally, but because of the incident in 1999, the two parties who had already reached a consensus started arguing again. They have been arguing until now, but they have not come up with a new solution..." This has been made completely clear. "So when you just said that you were cooperating with the Russians, you wanted to increase the number of these aircraft to five and divide them directly?" Mr. Zhang''s expression and behavior remained as usual, but the speed of speaking these words was much faster than usual. Obviously, his heart is not as peaceful as it appears. Figure 160 This supersonic strategic bomber with variable sweep wing design belongs to a special technical route formed in a special period. Not to mention that China is still unable to design and build such a nearly 300-ton aircraft. Even if it could, it would be impossible to start from scratch in the 21st century and invest huge resources in developing such a thing. Times have changed. But if you can''t do research and development, you can''t do research and development. If you can find a few ready-made products at a lower price and use them, it will still be really delicious. And in the process of using and maintaining these aircraft, you can also gain some experience in the design and manufacturing of large aircraft. Absolutely great value. As a 71-year-old comrade, Fu Youquan stayed up until midnight last night and was already a little drowsy. As a result, after hearing Chang Haonan''s words, he immediately became energetic: "There is something...Xiao Chang may not know." He said slowly: "Those Figure 160, in fact, we considered paying a sum of money to buy them back in 1994, and even sent people to inspect them. As a result, the news leaked at a critical moment, and the two opposite countries joined forces to suppress it..." Although he was talking about the difficulties he had faced in the past, judging from the excitement shown by Fu Youquan, it was most likely that he mentioned this topic because he was in great shock and worried that his joy would be in vain. Its not that I really think its not feasible. Chang Haonan has already seen through this: "Mr. Fu, the past was before, and the present is now." "In 1994, Moscow''s top brass wanted to wear the same pants as the Americans. How can our diplomatic environment compare with what it is now?" "Right now, these 19 aircraft are a hot potato for Ermao. They have to pay for maintenance from time to time. They want to get rid of them as soon as possible. However, the Russians have already broken down the talks alone, and they also need a third party as an introduction to restart the negotiations. As for the Americans, Chang Haonan paused for a moment and smiled slightly: "With all due respect, Mr. Bush is not as good as his father in terms of intelligence. Now he is most likely thinking about how to break into Aiwuhan quickly to restore his approval rating. As long as we relax on the route issue , they wont die over this kind of thing..." "In short, this is a four-win ending for you, me, and everyone..." "Um" Originally, Fu Youquan just wanted to find a way to convince himself. The reasons provided by Chang Haonan are obviously enough. As for Qiao Chenqing As the top commander of the Air Force, he was naturally happy. After all, if this thing really comes to pass, the one who will benefit the most is the Air Force After the Tu4 bombers were retired in 1988, the Chinese Air Force completely lost its ability to carry out strategic missions. The range of the H-6A/D/M models is simply not enough to deter major opponents. Not even Guam. Moreover, since it has never been equipped with practical nuclear weapons carrier aircraft, the aviation force also lost all nuclear-related positions after undertaking the first few nuclear tests. In other words, the diversity of combat missions carried out by the Chinese Air Force has always been lacking in terms of China''s status as a major power. However, the more critical this situation is, the more important it is to understand how to make a fortune silently. Therefore, although Qiao Chenqing has already planned the new bomber regiment in his mind, on the surface it is still as stable as before...as stable as Mount Tai: "Mr. Zhang, regarding this matter...should we first seek consultation from relevant experts in international relations?" "After all, the Russians paid off their debts in name only, and if we paid directly to buy it, would it be possible that it would trigger relevant arms sales restrictions?" Actually, this question is not important - What a joke, what arms sales restrictions? As long as Shang Sanchang nods, who will limit it? However, even this kind of detail, Chang Haonan has already considered: "Chief, we can also do the same as the Russians, in the name of debt repayment." As he spoke, he picked up his briefcase and took out a contract: "When we introduced the full production line and technology of the Tu334 passenger aircraft before, we stipulated that some core components in the D436 engine would be supplied by Ermao''s Motor Sich Group, and Ivchenko-Progress Design Bureau would be responsible for the technology transfer." "But since last year, due to problems with Ermao, the progress of supply and technology transfer has been hindered. For this reason, the entire C808 passenger aircraft project has been delayed for nearly a year." "This transaction is guaranteed by Ermao officials. Now that both of their companies are unable to afford the liquidated damages, the debt will naturally fall on Kiev''s head..." Three inhaling sounds sounded from beside Chang Haonan almost at the same time. Chang Haonan actually didn''t say anything else. Of course, even Ermao can choose to deny it. Moreover, if it were left for more than ten years, it might really be a default. However, in 2001, the other party''s senior management was relatively normal, and it was impossible to completely ruin the business relationship with China just because of this matter. Of course, for the other three people, it no longer matters whether there is this passage or not. "Comrade Haonan, this matter is so important that I alone...can''t make a decision." Mr. Zhang''s address to Chang Haonan also became more formal: "So, now I need you to write a formal report to me, and I will explain the situation to my superiors to see if I can approve your plan." "The time window is very narrow, so I won''t say any polite words. You have to act quickly. It is best to complete it before this evening." But Chang Haonan showed no panic: "Chief, I have prepared all the relevant information here. I just need to find a place to sort it out. If everything goes well, it will be handed over to you before dawn." Hearing such a guarantee, Mr. Zhangs eyes lit up: "Then let the comrade in charge of conference affairs arrange a room here, and the computer and other equipment will be prepared for you." "If this thing can be done, I will personally take credit from you!" "yes!" Chang Haonan immediately stood up and stood at attention. After packing up his belongings, Chang Haonan and two other people left the conference room under the guidance of the conference staff. The moment the door closed behind him, Chang Haonan was grabbed by Fu Youquan as he was about to take a step forward. "Mr. Fu?" Chang Haonan turned around. Fu Youquan''s lips moved slightly, but he made no sound. But there is a question clearly written in the complex eyes - You also said that you were not prepared in advance? But in the end, maybe I really didnt know how to ask. Or maybe I simply believed it was a coincidence. Anyway, he still waved his hand towards Chang Haonan: "Forget it, go and do your work..." (End of chapter) Chapter 925 Restart the denuclearization of Ermao Chapter 925 Restarting Ermao Denuclearization After hearing these words, even Mr. Zhang could not continue to maintain the character of the old monk in meditation. He suddenly raised his head, with a serious expression, staring at Chang Haonan with a pair of tiger eyes. As a veteran soldier who fought in the Anti-Japanese War and fought back in self-defense, even though he is over seventy years old, the sense of oppression exuded by long-term battles has not been weakened by half. It wasn''t until Chang Haonan felt a little hairy that the other party finally spoke: "Your idea surprises me a little." As soon as he said this sentence, Mr. Zhang''s expression changed back to his previous expression of neither sadness nor joy: "I thought after the last success in the Western Balkans you would become path dependent on that approach..." The content of what he said seemed a bit like a joke, but there wasn''t much of a joke in his tone. "Chief, are you testing me?" Chang Haonan opened the skylight and answered openly: "Although the background of these two incidents is related to the Americans, or the US military, the actual situation is completely different." "When the Allied forces acted, it was the other side that bullied the weak and illegally invaded, and they also wanted to trick their European allies. By the time the EU reacted, the situation was already out of their control." "At this time, the whole world is happy to see us secretly working to change the situation. Most countries don''t care at all about who is behind the scenes, so until now, quite a few people believe that it is the Russians. The ghost. Hearing what Chang Haonan said, Qiao Chenqing next to him couldn''t help but smile. Although he did not participate in that meeting, when he took over the position of air force commander some time ago, he learned about the entire decision-making process from his old partner Liu Yaoshun. Compared with what others had known for a long time, it was still a little less settled, so I didnt hold it back. But having said that, taking this blame is not necessarily a bad thing for the Russians. Because this helped them recognize the reality from the side and avoid policy swings in the critical years at the turn of the century. In 2014, the script was staged ahead of schedule. Of course, Chang Haonan, who was highly tense at this time, did not notice what was happening around him. Instead, he quickly organized language in his brain and continued the topic just now: "But right now, it is the United States that is being attacked first, and this is an indiscriminate attack that mainly targets civilians. At this juncture, it is not appropriate to stand on their opposite side." "Is this the only reason?" Mr. Zhang asked while turning the teacup on the table with one hand. Obviously, he thinks that just getting here is not enough to justify himself. It has to be said that although he has only met Chang Haonan twice, Mr. Zhang has almost figured out the former''s tricks. At this time, Chang Haonan no longer needed to hide anything. Instead, he needed to provide enough persuasion to pave the way for a big plan behind him. Therefore, after a short pause, he told the truth: "Moreover, two things can be seen from past historical experience." "First, if you support these organizations that use terrorist means to achieve their goals, you will be counterattacked sooner or later, so you should avoid siding with them in any form." "Second, this area of ??West Asia and North Africa, especially West Asia, has been a quagmire that is easy to get in and difficult to get out of since ancient times. The Americans withdrew quickly last time so they were not trapped in it, but they cannot be like that every time. Good luck. Compared with the slightly thin rhetoric at the beginning, these two reasons are obviously much richer. At least there was some satisfaction in Mr. Zhangs eyes The first one goes without saying. Shortly before the adjournment, the intelligence agency on the other side of the ocean had made public its preliminary investigation results and pinned the mastermind of the attack on a certain bearded leader of Al Qaeda. And this leader is the leader of the "resistance force" that Americans personally trained and supported more than ten years ago. If the timeline is pushed forward a little further, then the birthplace of modern international terrorism is the Kingdom of David. And they also got their own boomerang in Munich in 1972. The key lies in the second point. "So Xiao Chang, do you think the next flashpoint of the conflict will be Aiwuhan... or the surrounding areas?" This time, it was not Mr. Zhang who asked the question. But Fu Youquan. At first, he breathed a sigh of relief because Chang Haonan took the initiative to help him out. As a result, before he could even take a breath, he heard the other party''s judgment that "a war will begin." Combined with the subsequent rounds of questions and answers, although Chang Haonan did not say it explicitly, it is not difficult to hear that he was hinting at the country of Wuhan. After all, this is where Mr. Bin Laden made his fortune. As a result, the heart that had just been relieved became suspended again. You know, Aiwuhan and Huaxia are serious neighboring countries. Although the distance seems very far at first glance, if you zoom in on the map, you will find that the two sides are connected by a narrow strip of about 300 kilometers long and less than 100 kilometers wide - the Wakhan Corridor. This involves very complex national, historical and diplomatic issues, but in short, if chaos breaks out in Aiwuhan, it will not be good news for China. The trouble is, if Aiwuhan does not become chaotic, it may not be a good thing either... Highlight a dilemma. Therefore, after Mr. Zhang''s question came to an end, he asked almost immediately. If another non-professional staff member made this judgment, Fu Youquan would most likely just listen casually and choose to wait and see. But many things in the past have shown that Chang Haonan has a very keen sense in intelligence analysis. He should not be treated as an ordinary non-military personnel. "Mr. Fu, it''s not just Ai Wuhan." Chang Haonan adjusted his sitting posture and turned slightly sideways to face Fu Youquan: "Some businessmen from our country who are doing business in the Middle East have reported that as early as last year, Americans began to grant official posts to some tribal leaders in the Mesopotamia and Mesopotamia. It would be okay if it was only once or twice, but it would be done for a long time and on a large scale. , there is a high probability that you really want to change the world! This news was a complete surprise brought back by Lao Wu. Even Chang Haonan had no idea before this. Not to mention everyone else. "But that side should have nothing to do with this attack..." Fu Youquan''s subconscious words were only halfway through when he was denied by himself: "No, if the Americans want to go to war, it is normal to have no reason to forcefully find a reason. These should be two independent incidents..." At the beginning of the 21st century, China''s intelligence system was basically at its lowest point in terms of information source construction, and it was difficult to even collect public information from abroad. But as an older soldier who has experienced war, his ability to analyze and judge is still online. Therefore, Fu Youquan quickly realized that yesterday''s attack was an unexpected situation and was not part of the Americans'' plan. Even if there is no such emergency, the other side will choose the opportunity to attack the two river basins in order to re-establish sufficient military deterrence around the world. After hesitating for a while, he turned to look at Mr. Zhang who was sitting in the front seat: "Mr. Zhang, should we consider... putting the Jincheng Military Region on alert?" "If two conflicts really start in the Middle East at the same time, it means that a considerable number of US military units will be deployed around our country, at least for a long time to come." "Although the terrain over there is not suitable for large-scale mechanized units to pass through, no matter what... we have to guard against it..." The General Staff itself does not have the authority to mobilize troops. Major tasks such as moving to alert at the theater level must be reported to higher-level leaders through Mr. Zhang. In fact, Chang Haonan was originally planning to directly propose his final plan after this topic was over. But he was interrupted by Fu Youquan. The content of the other party''s conversation involved military command authority, so Chang Haonan immediately chose to shut up. He is very clear about what topics he can participate in and what topics he cannot participate in. "There''s no need to make such a big fuss." Mr. Zhang waved his hand: "However, I will report to the chief later to ask the border defense and special operations-related forces of the Jincheng Military Region to increase their alertness to prevent the chaos from having a direct impact on our country." After briefly responding to Fu Youquan''s suggestion, he turned his attention to Chang Haonan again: "It seems that Xiao Chang still has something to say, please continue." "good." Chang Haonan nodded upon seeing this. Now that the previous steps have been completed, there is no need to make any more detours: "For the current Americans, their previous layout in the two river basins cannot be directly used on Aiwuhan because they are separated by Persia. However, military operations against the latter are imminent, and the divisions are out Well-known, they are unlikely to pass up the opportunity." "And if you want to project power to Aiwuhan in a short period of time, land and sea transportation are almost impossible. There are only air channels in two directions." One through us and the other through Central Asia? Although there was no map here, Qiao Chenqing, who was born in the Air Force, immediately realized the answer. "To be precise, the Collective Security Treaty Organization." Chang Haonan replied: "There is a high probability that the Russians will give a favor and allow the US military to project troops through the airspace of the CSTO member states. After all, even if they do not allow it, the five Central Asian countries may not listen. On the contrary, it will affect the prestige of the CSTO big brother. "For us, it is of course impossible to allow US military combat forces to set foot on the country, but if the other party is willing to accept some reasonable prices, then we can open several airports for logistics and civilian supplies that do not involve weapons and equipment. Transit "etc" Mr. Zhang stretched out his hand and interrupted Chang Haonan''s words. At the same time, his expression turned solemn: "Whether this is feasible or not, we won''t make a judgment yet." "You just need to say what conditions you want to get from the Americans." With these words, Chang Haonan was completely relieved. In fact, he was not worried about whether his suggestion would be approved - Judging from the situation in the previous life, China''s bottom line is that it cannot open the Wakhan Corridor as a land passage. But air transport was later liberalized. Of course, on the surface, it is a commercial transportation route. So, the key lies in that condition. With such a once-in-a-lifetime opportunity, it would be a shame if it was just to earn some airport usage fees like in my previous life. "I think we can cooperate with the Russians and use this opportunity to get the Americans to agree to restart the denuclearization negotiations between the two countries." Chang Haonan sat up straight, leaning his upper body slightly forward, pressing on the table of the conference table: And lets get involved, too. (End of chapter) Chapter 924 Please enter the urn (10,000 per day, please give me a monthly ticket) Chapter 924 Please enter the urn (10,000 per day, please give me a monthly vote~) Fortunately, except for Fu Youquan, no other person made such a terrifying association. At least no one else said it. This made Chang Haonan somewhat relieved. By the way, I also understood why the other party specifically asked me to participate in the meeting. It turns out that it was just to ask such a somewhat irrelevant question. However, it is understandable. This matter is probably something that people around the world have never dared to think about in the past. And, more importantly. Chang Haonan knew that the matter was over here. But others don''t know. Judging from the current point of time, this is a continuous, wave after wave of attacks. What if there is a fourth or fifth time? It is different from the simple emotional venting of melon-eating people. People who can sit in this conference room need to think about issues from all aspects. When the situation is still unclear, let alone coping, no one even knows whether they should expect or worry... The next few hours, until midnight, were calm. After the attack, considering that someone had tried to hit the CIA Langley headquarters with a plane in 1993, the first response of the US intelligence agencies was to evacuate their staff. Therefore, for a long period of time, the U.S. intelligence system was almost paralyzed. As time passed, the situation finally began to improve, and more and more information about the attack was confirmed and released. Then, the information will be transmitted back to the country one after another by the overseas agencies. Chang Haonan, who was in the capital, finally got what he wanted and saw a lot of things he had never seen in his previous life. Someone even got a TV and directly received the TV signal from the other side of the Pacific. What is playing on the screen is Mr. Bush''s speech. At this point in time, even he could only get some fragmented information, so there was not much nutritious content in his speech. Not to mention that the other party''s stumbling words were obviously more irritating than anyone on the Chinese side. Therefore, everyone''s attention quickly shifted to other places. Soon someone spoke first: "Look at the background...this doesn''t seem to be a white house?" "That''s right." Luo Yudong, still standing behind the small podium, replied: "Due to air traffic control and the extreme chaos, Air Force One was prohibited from returning to Washington." "So, he should be at Barksdale Air Force Base in Louisiana." Many people were surprised when they heard this location - It is one of the most important components of the United States'' strategic nuclear forces. Is choosing that location for the first (actually the second, but no one knew it yet) speech after the attack the equivalent of a hint? It was also at this time that the statement "We will respond to this" came out on TV. Although not everyone here understands English, the translation faithfully conveyed the meaning to everyone. This meeting is essentially a discussion. Faced with this kind of scene that had never happened before, even Mr. Zhang, who was literally experienced in many battles, was a little unsure of how to steer the discussion. Facts have proved that in this kind of private setting and lack of guidance, whether it is the big leaders or the masses, they are essentially a group of ordinary people. So the conversation quickly started to fly. From guessing the other party''s next reaction to studying what kind of statement we should make. For a long time, Chang Haonan did not participate. The main reason is that among the people at this table, he is indeed a low-key person, and it is difficult for him to take the initiative to express his position without being invited to speak. However, he was happy to have some leisure time. He just took out a pen and paper from his briefcase and occasionally recorded some news reported back. "Ahem" Finally, Mr. Zhang, who was sitting in the front seat, turned on the microphone in front of him and coughed twice. This is obviously a signal that leaders are ready to take a stand. Therefore, the originally noisy venue quickly became quiet. "Comrades, let me first emphasize one point." Mr. Zhang''s voice seems to have become older than two years ago, but it is still firm and powerful: "It is not the scope of our military personnel''s responsibilities to make public statements about this emergency and handle it at the external level." "So, the topic we discuss this time should still be limited to the military level." Now, the tone has been set. The discussion at the military level seems to be quite broad. But to sum it up, its actually just one question Did the "response" that Mr. Bush said on TV a few hours ago include means of war? Opinions quickly divided into two completely opposite groups. Some people feel that the other party may just pay lip service and may not actually use force on a large scale. Not that these people would think America loves peace. It''s mainly a matter of concept. In 2001, there was no concept of the so-called war on terror. Therefore, although everyone agrees, this incident must be quite irritating to Americans. But in the minds of many people. To talk about starting a war... A clear goal seems to be needed. But others are **** for tat, saying that the impact of this wave is comparable to the attack on Pearl Harbor. In this case, the target is no longer important. Even if you are searching for enemies in the void, you still have to find someone unlucky to take the blame. Otherwise, where will the American people vent their anger? During the back-and-forth argument, sitting next to Chang Haonan, Qiao Chenqing, who was in charge of the Air Force, moved closer to Chang Haonan and asked in a low voice: "Comrade Haonan, you just... seem to have never spoken, right?" The current commander of the Air Force on paper is still Liu Yaoshun, who has met Chang Haonan several times before, but his physical condition no longer allows for high-intensity work. Therefore, Qiao Chenqing is mainly responsible for daily affairs. Faced with this problem, Chang Haonan said in his heart that I actually said it before you came to the venue, but the content was enough to scare someone to death... Of course, I just said this in my heart. On the surface, he still nodded and expressed his stance immediately: "There are not many opportunities to listen to the speeches of the chiefs. I still need to learn more." In fact, Chang Haonan was ready to say something on the way over. But I really didn''t expect that the person in charge of the Second General Staff Office would stand directly on the stage. This situation is a bit complicated. You know, the Second Division itself is responsible for intelligence collection. Chang Haonan''s speech will inevitably involve a considerable amount of information from the West Asia region. Some of them were brought back by Old Wu, and some of them were things he already knew about, but he still had to put them on Old Wu''s head. No matter what, talking about foreign intelligence in front of the head of an intelligence agency is always a troublesome thing If the other party had already reported the same content, it would be Chang Haonan''s own embarrassment. And if not, it is tantamount to pointing at the nose and saying that others are not doing their job properly. The future working relationship will not be good. That''s why Chang Haonan never found a chance to speak. However, at this moment, Mr. Zhang looked at the clock that was already pointing to midnight and announced that the meeting would be temporarily adjourned. Then, while most people got up and went to rest, he waved to Chang Haonan. Soon, Fu Youquan, Chang Haonan, and Qiao Chenqing sat next to each other. "Comrade Youquan." Mr. Zhang fiddled with the tea leaves floating on the water with the cup lid and said in a half-joking tone: "At the meeting last night, you specifically applied and said you wanted to call Comrade Chang Haonan to attend the meeting, but Xiao Chang came over and remained silent. Isn''t this... inappropriate?" It was naturally impossible for Fu Youquan to admit that he was out of his mind at the time and suspected that the matter was related to Chang Haonan, so he called him over. But I couldn''t think of any other explanation for a while. As a result, the atmosphere fell into a slightly stiff stalemate. In this situation, Chang Haonan naturally needs to take the initiative to rescue the leader: "Chief, what Mr. Fu wants is mainly for me to learn and gain experience. Even if I speak, it is just to make suggestions, so I was mainly listening just now." After finishing speaking, he also opened the notebook next to him. As expected, it was filled with several pages of content. However, Mr. Zhang just chuckled after hearing this explanation: "Xiao Chang, if I hadn''t met you the year before last, this explanation would barely make sense." As he put the tea cup back on the table, he changed the subject: "In the situation just now, it may indeed be inconvenient for you to express your position rashly." "But there''s no need to be so modest now. Tell me what you think." This is what Chang Haonan has been waiting for As the only person present who did not hold a military rank, some words were actually more appropriate for him to say. "Mr. Zhang, I think this battle will definitely happen." Upon hearing this judgment, Mr. Zhang did not make any obvious statement, but nodded slightly, indicating to Chang Haonan to continue. "On the one hand, the greatest psychological reliance of Americans in the world lies in their belief in the absolute security of their homeland. Although the threat of intercontinental nuclear missiles has been rumoured for decades, it has never been realized, and there is a lack of actual feelings. Even World War II did not have any serious impact on North America. "So, this time, it is actually the first time in more than a hundred years that Americans have been beaten on their doorstep. It is impossible to endure it no matter what." "On the other hand, after the 1999 incident, the military myth that the US military finally established through the Gulf War has once again been loosened. Therefore, they urgently need an opportunity to reassert their strength to the world." Although two years have passed, when talking about the Allied Forces operation, Mr. Zhang still had a happy expression on his face. For those in the know, that time was indeed a relief. Of course, in his position, he could not express his opinions casually on Chang Haonan''s opinions, so he just nodded, unable to tell whether he agreed with this judgment. After a while, Mr. Zhang spoke again: "So... do you think we should try again the response to the Allied Forces Operation?" "No, or...completely the opposite." Chang Haonan took a deep breath, and then said decisively: "I personally believe that this time, we should go all out to support the Americans!" (End of chapter) Chapter 923 Chief, this really has nothing to do with me. Chapter 923 Chief, this really has nothing to do with me. Originally, Chang Haonan was still thinking about how he should participate in the response to this incident in a reasonable way. After all, the situation was different from previous Allied operations. At that time, he had started planning very early. The core of the breakthrough was the technical equipment developed by him. With this relationship, it is natural to join the decision-making process. But now, after all, we are facing an emergency. On the one hand, Chang Haonan cannot be too prophetic. On the other hand, there is really no way to prepare in advance. Not to mention him, in fact the whole of China can only react passively. In this case, he, a central enterprise manager who is mainly responsible for technology, seems to have no reason to get involved. Moreover, lets take a step back. Even if it is not from the perspective of making suggestions, just considering the convenience of eating melons, it is more appropriate to stay near the decision-making center. There is a time lag when information spreads from the inside to the outside and from top to bottom. And this diffusion process will inevitably lead to information distortion. Although since the incident occurred in the United States, it is difficult for China to obtain "first-hand information" in the true sense. But places closer to the source still have better timeliness and accuracy. One of the most typical examples is. In the previous life, Chang Haonan didn''t learn the news through the news until noon the next day. But now, he probably only knows about it more than twenty minutes later than the other side of the Pacific Ocean. In 2001, it was definitely very efficient. Fortunately, before Chang Haonan could come up with something, his superiors took the initiative and asked him to be left alone. Soon, only a few people, including Chang Haonan, were left in the huge conference room. "Both leaders, can you ask...what happened?" All in all, Chang Haonan didn''t actually hear anything just now. In theory, he shouldn''t know why the meeting was suddenly suspended. The two people sitting in the first place looked at each other, and finally Ding Gaoheng quickly explained the current situation to Chang Haonan while sorting out the documents quickly: "Due to unknown reasons, a Boeing 767 passenger plane..." "It has caused a large number of casualties and serious fires, but there is no further news." His voice was visibly shaking. At the end of the sentence, I even sounded a little hoarse - It''s not because of emotion. In other words, facing such a complicated event in such a short period of time, Ding Gaoheng had no time to consider what emotions he should feel. It was just a physiological reaction caused by extreme shock. and. Although the conference room has become somewhat empty. Although Chang Haonan already knew what would happen today. However, when the news came out from Ding Gaoheng''s mouth, the atmosphere froze for a moment. Even Chang Haonan himself didn''t notice that his hands trembled violently like Ding Gaoheng who first heard the news. But it wasn''t because of shock. But the sudden relaxation after "all the dust has settled". Of course, Chang Haonan has tempered himself over the years and does not really show his emotions on his face. "so it is" At this time, the chief next to him spoke: "Although the current public statement is that the cause is unknown, it would be too coincidental to say it was a mechanical failure." "Let''s talk behind closed doors. There is a high probability that this was a premeditated attack." "So, similar to the situation during Operation Allied Forces, all systems need to meet immediately to determine the current situation and what response should be made next." "Including letting Comrade Haonan stay is what Mr. Fu Youquan and Fu specifically requested just now." Hearing that it was the leader he had dealt with before, Chang Haonan breathed a further sigh of relief and leaned back in his chair: "But... we were at least prepared for the Allied Forces Operation. This time around..." He pretended to be silent for a while: "If it was an attack, who did it?" "Now that things have just happened, there is too little news, and there are various rumors, and the accuracy is difficult to verify, so it is too early to say anything." At this time, Ding Gaoheng had already packed up his things, got up and walked towards the door of the conference room: "Comrade Haonan, come with me and go to Jingxi Hotel." At this time in 2001, the Bayi Building on Fuxing Road had actually been built long ago. However, this building, which was originally intended to be the office of the military, did not actually perform its due functions and only became a ceremonial place for the military. The real office and meeting places are still in the same old places. Jingxi Hotel is one of them. In fact, most high-level meetings take place here. It''s just that Chang Haonan was too lucky. The two internal meetings he participated in before were all kept extremely confidential. They were only responsible to the top leaders. Others, as long as they were not relevant personnel, had no way of knowing, even if the level of confidentiality was high enough. kind of. They are all handled directly at Sanzuomen. Therefore, I have never been to this "Crown of Venues" affiliated to the General Staff Headquarters. When Chang Haonan and Ding Gaoheng took the car all the way and finally passed through layers of security checks and arrived at the hotel conference hall, there were already many people sitting inside. Most of them are familiar faces that Chang Haonan met last time. However, because some people are still not present, or the current information is not complete enough, the meeting has not officially started yet. Sitting at the top of the list was, as usual, General Zhang. It is said to be a meeting at the moment, but in fact it is still in the internal discussion stage and does not involve the decision-making process at all. The higher-level leaders are not military professionals and have to deal with external affairs first, so it is normal for them to be unable to attend. According to the meeting guidelines, Chang Haonan and Ding Gaoheng took seats on both sides of the conference table. "Comrades, chiefs and comrades, let me report the latest news." Just then, Luo Yudong, the head of the Second Department of the General Staff who was responsible for presiding over this meeting, or strictly speaking, just responsible for reporting the situation in real time, walked behind the small desk and prepared to report the latest information. Of course, it has only taken an hour and a half since the incident occurred, so this briefing still does not involve any real non-public information. Mainly a routine update on the situation. The venue, which was a little noisy just now, suddenly became quiet. After experiencing the initial confusion and confusion, everyone here thought that their mentality was relatively stable at this time. However, it turns out they underestimated what was coming next: "At around 9:00 that time, another Boeing 767 attacked the South Tower (Building 2) of the Twin Towers in a similar manner. Subsequently, around 9:40, a third Boeing 757..." Just when he said this, Luo Yudong had to stop midway, pick up the tea cup and take a sip of water. Then came more important news: "At around 10 o''clock, that is, about...15 minutes ago, Building 2 had completely collapsed, and the situation in Building 1 was also in critical condition..." There was a sound of inhalation throughout the conference room. Although not at the scene, and no reliable photos or videos have been sent back, it is not difficult to imagine this catastrophic scene even if it is only described in words. In order to appear more gregarious, Chang Haonan also symbolically expressed some shock. But in fact, he regained his inner peace. In addition to these three successful ones, he even knew that there was another hijacked plane that crashed early due to passenger resistance. Otherwise the matter is bigger. However, even the Americans themselves have not yet had time to put the crash of United Airlines Flight 93 together with the other three incidents. Just when Chang Haonan was thinking about the outcome of the discussion that would come later, Fu Youquan, who was a few seats away from him, came over at some point. "Xiao Chang, please explain to me." The latter looked around and asked in a mysterious low voice: "This matter...has nothing to do with you, right?" "ah?" Chang Haonan felt that his mentality was stable a second ago, but he was so frightened by one sentence that he almost jumped out of his chair. Today''s incident can be regarded as the biggest blame in the post-Cold War era. Not to mention him alone, not even a few others can afford it. So he calmed down a little and quickly shook his head: "Chief, I guarantee with my dang personality that I really don''t know anything about it..." "How...how could you...have such thoughts?" He really wanted to say that he didn''t like America, but he wasn''t anti-human. Not to mention incompetent, even if he had the ability, he wouldn''t do such a cruel job It will only make the other party more united. The six months after today will definitely be the period of strongest cohesion between the two sides since World War II. As for stepping into the quagmire and being unable to pull it out, that is simply seeking your own death. However, in his extreme astonishment, he was unable to express this complex logical relationship at all. Therefore, after asking a rhetorical question, although he opened his mouth, no other sound came out in the end. Fortunately, Fu Youquan didn''t really doubt Chang Haonan, but he was so shocked that his mind went wrong for a while. After seeing the latter''s expression as if he had seen a ghost, he also realized that there was something wrong with his thinking, so he straightened the hem of his uniform with some embarrassment: "Sigh... I was confused for a moment... just pretend I didn''t ask." "The main reason is that during the previous Allied Forces operations, Xiao Chang, your calculations were too accurate and too far-fetched. This time, I subconsciously felt..." Chang Haonan went numb after hearing this explanation. He actually explained last time that the impact points of those bombs were not calculated in advance. In fact, since JDAM did not have the ability to glide, it was technically impossible to calculate them in advance. But apparently no one believed it. Originally, he held the principle that one more thing is worse than one less, and he thought that the matter would be over when it was over. So I didn''t insist on removing myself from it. Who would have thought that there would be a follow-up waiting for this... (End of chapter) Chapter 922 A shocking collision Chapter 922 A shocking collision Originally, Chang Haonan was planning to wait at home to see if the big news would really come that day. However, by coincidence, on the afternoon of September 11, the Committee of Science and Industry organized a symposium on the development of the aerospace industry. In fact, originally, this matter should have nothing to do with the Aerospace Power Group. However, Chang Haonan, as a major participant in the Ziyu-2/Haiyang-1 satellite, and more importantly, the general manager of Torch Group, was separately invited to attend. Then there''s no way. Symposiums are relatively casual in form. For most attendees, there is no need to prepare in advance. Including Chang Haonan himself, he only received a temporary notice the day before that he might be required to report on the work status and future plans of Torch Group. But this symposium was of a very high level. In addition to Ding Gaoheng and the three deputy directors, there were even senior leaders in charge of the development of the science and technology field. Chang Haonan, as the deputy director of a second-level central enterprise, even became the lowest-ranking person among the attendees. However, due to well-known special reasons, he was still placed relatively near the front of the conference table. Considering that the theme of the meeting is related to aerospace, it is natural that Luan Wenjie, who is still the director of the National Space Administration, will host it. Of course, this kind of internal meeting is not a retreat. In fact, there is no "host" in the strict sense. Luan Wenjie could only be considered the first to speak. After a few words of opening remarks, he first quickly summarized China''s achievements in the aerospace field in the past few months. The most important thing is naturally the Shenzhou-2 spacecraft that was successfully launched at the beginning of the year. Shenzhou-1, launched at the end of 1999, can essentially only be regarded as a "prototype". In order to ensure the launch node, many equipment and systems have not been installed. But starting from Shenzhou 2, it is a fully-functional spacecraft with complete technical status and actually capable of manned flight. From then on until the truly manned Shenzhou 5, there were only adjustments at the payload level. Therefore, it is certainly worth writing about. Chang Haonan is also ready to fight a protracted war. However, to his expectation, this part was still very short. "Regarding the progress of the manned space project and the preparations for the lunar exploration project, the space agency has submitted a special report to the superiors, so it will not be the focus of our meeting." Before Chang Haonan could react, Luan Wenjie went straight into a summary, and then changed the subject: "Next, I will report on the parts of the plan that have not yet been realized..." The first is the Haiyang-1 test satellite, which was originally planned to be launched before the end of this year, but its development was blocked due to external reasons. At present, the hardware-level problems have been basically solved through partial domestic substitution and partial replacement with other foreign suppliers. " "As for the software level..." Luan Wenjie said as he glanced at Chang Haonan, who was sitting diagonally opposite: In fact, as early as the beginning of last year, the National Remote Sensing Center had determined the feasibility of mining deeper data from satellite remote sensing information through the Ziyu-2 satellite, and these data have been used in disaster prevention and reduction, environmental protection, and national played a role in the four major projects of the new century. "It''s just that the tests at that time were mainly completed with ground equipment. Due to the time-sensitivity of remote sensing objects, ocean satellites need to perform part of the data processing on the satellite to improve timeliness..." This topic is actually closely related to Chang Haonan. However, the long speech was mainly completed by Luan Wenjie himself. Chang Haonan only occasionally had to intervene when the leader was interested in specific technical issues and the situation of the Ziyu-2 satellite. However. He escaped the open attack of the Haiyang-1 satellite, but he did not escape the hidden attack that followed. The symposium even lasted until after dinner. General Manager Wang Hengli of the Aerospace Science and Technology Group began to introduce the next-generation launch vehicle being planned, and focused on the theoretical research and development of low-temperature structural dynamics, heavy-duty rocket body stress distribution optimization, high-frequency combustion oscillation of liquid fuel, and atomization evaporation combustion processes. Model verification and more than a dozen questions in a row. Even if not all, at least two-thirds are directly related to the Torch Group. At this moment, Chang Haonan finally understood why he was specially called here today and arranged to be in such a front position As soon as Wang Henli''s report ended, almost everyone present focused their attention on him. If I hadn''t experienced hundreds of battles over the years and seen a lot, I would probably be a little trembling when faced with this situation. Fortunately, it takes ten years of work off stage and one minute on stage. Although he only received the news yesterday, Chang Haonan definitely knows the situation of Torch Group well. If it weren''t for showing respect, he wouldn''t even bother to pick up the manuscript: "Since General Manager Wang Hengli just mentioned no less than technical issues related to our group, I am here to give reassurance to the comrades in the aerospace system." "Perhaps some comrades know that I published a paper in the first issue of the Journal of the Chinese Academy of Sciences in the first half of this year. The content is a modified level set method that is strictly conserved. This is also the next stage of our Torch Group. Or strictly speaking, the main direction of work starting in the second half of this year. "TORCH Multiphysics 2.0, which will be released by the end of this year or early next year at the latest, will involve two new methods, two new models and fifteen new preset problem frameworks to solve the most pressing problems of key users... " Every time Chang Haonan turns a page, it is actually not to read the manuscript, but to use his movements to tell the time. If he remembered correctly, the shocking collision should have happened before going to work in the morning Eastern Time. That is, that night in Beijing time. And after having meetings all afternoon and half of the evening, that time is getting closer and closer. Although Chang Haonan told himself a few days ago that he had not done anything that would cause this matter to go wrong since his rebirth. But the butterfly effect is sometimes illogical, so it is absolutely false to say that I am not worried at all. After all, this is a big deal. Even if it is biased to attribute the decline of the United States entirely to its failed Middle East policy, the latter is at least a very important reason. And the trigger. Time passed by minute by minute. Just when Chang Haonan turned to page nine of the information, the conference room''s access control system suddenly sounded a beep. It means someone is ringing the bell outside. For a moment, everyone turned their heads and looked at the door with either surprise or confusion. Normally, no one would interrupt such a high-level meeting unless something shocking happened. Only Chang Haonan exhaled a long breath. Then, without concealing it, he raised his hand and glanced at the dial. If the time of the incident remains unchanged, it should be 8:46. Of course, the message must be confirmed, delivered and conveyed in the middle, which will definitely take some time. so now It seemed like it was destined. 9:11 p.m. A number made entirely of coincidence. At this time, the door of the conference room was also opened by the conference staff inside. Two secretarial-looking staff members quickly walked into the room, then went straight to the two leaders at the head, bent down and whispered for a moment. Chang Haonan was very sure. The moment they heard the news, a trace of astonishment flashed across their faces. Ding Gaoheng''s left hand even trembled violently, and he dropped a drop of ink on the notebook open in front of him. But he didn''t even notice that. After a full minute passed, the leader who came to the meeting took action again. He shook his body slightly. Obviously trying to get up. But it didn''t work out. Fortunately, the secretary next to him calmly gave me a hand, and the leader himself quickly stretched out his hand to support the armrest of the seat, and then stood up straight. "Comrades, due to some emergencies, today''s meeting... will be held here first." "Thank you, everyone, you are all on duty in the office tonight. Related news, a briefing should be sent to you soon..." For major events like this, there is a strict distinction between what kind of information people at different levels can obtain. Therefore, even superior leaders cannot immediately tell everyone what they have heard. That''s why there is such a statement that is similar to the Riddler''s. However, the people sitting in this conference room are all veteran comrades who have experienced many battles, so they naturally understand this aspect. "The meeting is over!" While the leader was packing up his things, Ding Gaoheng quickly added something to the side, and then motioned for all those present and present to leave separately. Chang Haonan is now suppressing his excitement and is preparing to take a first-person perspective to see what happened on T+0 day. Therefore, after hearing the word "dismissed", he quickly put the documents and notebooks into his briefcase and prepared to leave. As a result, things backfired. Before he could stand up, he heard Ding Gaoheng add: "Comrade Haonan, don''t leave in a hurry." "?" At that moment, Chang Haonan''s breathing almost stopped. "The superior leader just said... to let you stay for a while." (End of chapter) Chapter 921 Big changes Chapter 921 Big changes September 8, 2001. Wu Yifan finally returned to China before that critical day In the past six months, the latter has been active in the South Caucasus and Central Asia, opening up a safe passage from Eastern Europe to the Levant for Chang Haonan. If nothing else happens, these areas will soon become the focus of the world. In fact, according to the experience of the previous life, if it is really dangerous, the most dangerous stage in the Middle East should be the ten years after 2005 until 2015. The U.S. military''s outrageous operations completely shattered the order in the Mesopotamia and the two river basins. In the end, a certain black flag force emerged from it, which was truly chaotic and evil. The kind that wont tell you any truth. Not only did it turn the entire region upside down, but even its behind-the-scenes supporters were backlashed. On the contrary, from the end of 2001 to the beginning of 2005, although it was said to be a war, there were not many decent exchanges of fire, and overall it was relatively stable. After all, whether it is the US military or the "base", they are still serious organizations that can speak human words. They just have different positions and demands. If you can communicate, it will be easier to handle. But Lao Wu''s resources and abilities are too important to Chang Haonan, and there is no room for sloppiness. It would be safer to get him back home in advance. Lets take a look at the situation in a few months. If there are no big changes, it wont be too late to let the other party go to the Middle East to cause trouble. And if the plot direction deviates greatly from the previous life, then you can only take one step at a time. As usual, every time Lao Wu returns to China, Chang Haonan will personally greet him in the box of the Torch Group canteen. Although the two of them could communicate through the radio or secret messages from time to time when the former was abroad, they were literally worth a thousand dollars. It would be nice if they could finish talking about the most critical things, and there was no way to add details. And since Lao Wu has been in the Middle East most of the time in the past two years, it is difficult to use even these contact information. Just like this time. In fact, as early as June, Chang Haonan randomly found a reason and asked the other party to put down all the work at hand and return to China as soon as possible. But the news was not received until early September. Fortunately, it''s not too late. In short, every reception is an excellent opportunity for Chang Haonan to obtain first-hand information about hot spots. However, this time he returned home early due to unexpected circumstances, so at first he did not have much expectations for the news that Old Wu brought back. However, the reason why surprise is called surprise is because it appears unexpectedly... After the waiter brought all the dishes, Wu Yifan poured himself a glass of beer as usual, drank it all and said: "Brother Nan, I have some speculations that I''m not sure about, but I still feel like I should tell you..." Chang Haonan would not drink unless necessary, so he just lowered his head to eat the food and nodded to indicate to the other party to continue talking. "I think the Americans may launch another combat operation in West Asia within a few years...actually within one to two years at the earliest!" "?" Chang Haonan was shocked by this shocking judgment. Afghanistan is right on the edge of West Asia. "This...cough cough cough-" In a hurry, Chang Haonan choked before he could say anything. I kept coughing for a long time before I finally recovered: "This...where does this judgment come from?" His expression and tone of seeing a ghost were not fake. As a reborn person, Chang Haonan naturally knows roughly what will happen in the next few days. However, as a person without a prophecy book, Wu Yifan was able to guess so accurately that even the time was quite different... I can only say that it is indeed a bit outrageous. After all, at this moment, at least on the surface, everything is still in a calm stage. This reminded Chang Haonan of some conspiracy theory analysis in his previous life. That is to say, the CIA, DIA and other U.S. foreign intelligence agencies had actually known for a long time that there would be an attack on their homeland. It was just out of consideration for the interests of the department, and they really did not expect that the other party would play such a big role, so they chose to add fuel to the flames. Or at least let it happen. However, first of all, there is really no solid evidence, and it only stays at the level of its own logical closed loop. Secondly... Even if this is true, it must be the top secret of the relevant units. Otherwise, after so many years, people should have been caught. In short, as an outsider, Lao Wu should not know in advance. Its impossible that he has already penetrated the relationship to the higher-ups on the opposite side... Just as Chang Haonan''s brain was spinning rapidly, Wu''s reply directly dispelled his doubts. "I have been active in Erbil and Sulaymaniyah in recent months, and I heard about it from several tribal leaders there." "ah?" Chang Haonan was immediately stunned. Then he realized that he had gone astray. West Asia is a very large place and includes many countries. It''s just that during this period, his attention was always on that country, so he made wrong judgments based on his mindset. In fact, the two place names mentioned by Lao Wu are located in the border area between northern Iraq and Turkey and Persia. They are mountainous and have a majority population of Kurdish people. In a place like this, there has naturally been a strong tendency for separation for a long time. The reason why he stayed in this place for a long time was because of its indifferent nature and the terrain that was conducive to smuggling. Many studies have shown that the ancient Silk Road most likely passed through this place all the way west to Rome. Moreover, the outbreak of the second Gulf War was indeed not an unexpected event. But there have been clues since the beginning of the 21st century. In particular, the U.S. military suffered a huge defeat in Operation Allied Forces in 1999, and the loss was inexplicable. As a result, the subordinates are now ready to take action. And more countries have begun to think about a problem - Is this America okay? Therefore, they urgently need a chance to prove that they can do it. Therefore, he will only behave more positively than in the previous life. Although this kind of behavior of losing face elsewhere and then trying to regain the reputation by beating up one''s own horse sounds very abstract. But Americans thinking seems to have always been like this Seeing Chang Haonan lower his head in silence for a long time, Lao Wu thought that his explanation was not convincing enough, so he further explained: "Some time ago, in order to initially figure out the route, I have been doing serious business from Central and Eastern Europe to the Kurdistan Region. I heard the same American name many times, called Zalmay Khalilzad." As he spoke, he took out his wallet from his pocket, pulled out a photo from a pile of colorful banknotes from various countries, and handed it to Chang Haonan. It''s a group photo. Among the crowd of bearded people dressed in robes, turbans, and beards, a man in a suit with a Jewish face and a Mediterranean hairstyle stood out. Wu Yifan wiped his hands on the towel next to him, and then continued to explain: "This person is a diplomat on the surface, but he is actually using his immunity to do some work of conspiring to subvert." "I don''t see you in this photo?" Chang Haonan was a little curious: "How did you get it?" Upon hearing this question, Lao Wu immediately became happy: "I used to sell some mechanical parts from Europe to the Kurdistan Region. Since I wasn''t trying to make money anyway, I set the price very low. There were a few managers there who thought I wanted to engage in political speculation through them." "Then what?" Chang Haonan raised his eyebrows and returned the photo to Lao Wu. "Then several groups of Kurdish forces made offers to me, saying that if I could only organize low-cost supplies for them in the future, then when they become independent, they would give me an official position in Kirkuk." The latter said and put the photos away: "This photo was taken by one of them to prove that they have the support of the big boss..." "Fuck..." Chang Haonan shook his head helplessly: "This pie is so daring to draw, even the post in Kirkuk has been taken into account..." Kirkuk is the most important oil-producing area in the Mesopotamia, so the official positions there are definitely lucrative. The only problem is that Kirkuk does not belong to the Kurdistan Region and has been directly controlled by the US military for a long time after the war. Using the position here to make a wish is basically equivalent to Cao Cao''s promise at the end of the Eastern Han Dynasty that he would make you a shepherd in Yizhou... "You know what''s the funniest thing?" At this point, Old Wu could hardly hold back his smile: "About four or five forces have asked me to supply them exclusively. As a result, the conditions they offered me are almost exactly the same, and even the positions are similar." "Later, I asked more specifically and found out that it was actually Khalilzad who had promised the management of northern Iraq to many people..." "Pfft..." Chang Haonan didn''t hold back either. Obviously, this is already ready to kill the donkey. "It''s better not to get involved in these things. It''s too dangerous. Let them go dog-eat-dog." Chang Haonan waved his hand and said: "Moreover, in the long run, the chaos in that area will help more countries realize the nature of Americans being powerful outside the country and working within the country. This is not a bad thing for us..." (End of chapter) Chapter 920 Precision guidance era Chapter 920 The Era of Precision Guidance Facing the high-walled power grid many years later, these members of the Sleeping Grass Party will recall that distant afternoon when they were suddenly dug out of the grass by a team of military dogs Until they were pointed at a row of black guns, they couldn''t figure out how the other party found this place. It took decades before one of them saw the relevant description in a memoir Very fortunately, or very unfortunately. They became the first batch of "victory results" of the Chinese Air Force''s first laser targeting pod. Unfortunately, this record was not included in the history of the war. However, the first officially recognized achievement of the Condor 1 pod was not much better than the night of September 2001. Of course, this is all a story for later. Especially for those unlucky ones who were caught. In fact, in 2001, the security department''s attitude towards groups such as the Wall Climbing Party and the Grass-covering Party was basically not to take the initiative to deal with them unless they went too far. Therefore, this group of people should have been criticized and educated, detained by public security for a few days at most, and then released. However, one of them was so frightened that he confessed and admitted that he had contacts with overseas intelligence agencies. At this time, not to mention several other accomplices, even the police comrades responsible for routine interrogation were shocked. Overseas intelligence agencies. A shining third-class merit. The nature of the matter immediately changed. Although these people met online, there were not many offline contacts in the past, so there is a high probability that the other people have nothing to do with it. But there are some things that cannot be weighed even if they are not weighed four ounces, and they cannot be weighed even if they are weighed a thousand kilograms. Although it will not be counted as an accomplice, secretly photographing classified military areas is a crime in itself. As a result, they became negative examples and experienced firsthand what it means to "point the camera at the airport and walk into a prison cell in life." For a time, even the candid photography teams in Shengjing, Rongcheng and other places were in turmoil, and quickly fell into mutual suspicion. After all, whether they are climbing walls or lying on grass, most of them are just curious in nature and do not really want to use the information for anything. He is not in the same camp as the real spies who were bribed. Eventually, almost all of these small groups disintegrated one after another, and the security department also entered a period of relative purity... Naturally, this is something to talk about later. As for the laser aiming pod test on September 6, after such an incident, it naturally ended successfully. Prototype No. 1007 successfully achieved stable tracking and targeting of 14 moving targets of category 3 at a shooting range southwest of Hokyong. Its just that the J-10AS itself has not yet reached the stage of weapons testing, and the few laser-guided bombs currently equipped in the country are imported and they are really reluctant to throw them away casually, so the real bomb test still has to wait for the same type of domestically produced ammunition. Fortunately, Norinco''s "Tiange" series of laser-guided bombs have entered the middle and late stages of the research and development cycle. After the laser coding of the pod is determined, it should soon enter the live-fire testing stage. When the Aviation Industry Corporation was split up, Luoyi 613 Institute was won over to the Aviation Power Group. In addition, the introduction of the Shenying 1 was a project that Chang Haonan advocated, so the test results were naturally sent quickly. In the hands of Chang Haonan. "Mr. Chang, judging from the test results, the adaptation relationship between our domestic data bus and the pod provided by Thales is good. The fire control system can operate normally and aim at the pod for full-function operation. The next step is to implement it based on the law." We have used the technical information provided by the party to localize the pod hardware. Lu Guangshun, the chief designer of the Shenying 1 project and also the deputy director of the 613 Institute, reported to Chang Haonan. "The introduction schedule of the Damocles pod is related to the upgrade schedule of the M88-3 and M88-4." Chang Haonan put aside the report that had been turned to the last page: "Within this year, we should be able to obtain relevant information on the high-precision two-axis gyro-stabilized platform. By then, you can take down this most critical technology as soon as possible, so that at least we can target the most basic functions of the pod. Not controlled by others. "As for the non-cooled thermal imaging equipment, Thales is very serious about it. I am afraid that I will have to wait until the M88-4 plan is released in the future to get it. I have asked the 606 Institute to speed up the progress as much as possible, but this kind of thing is not possible after all. It can be done overnight. Lu Guangshun was relieved when he heard that Chang Haonan could guarantee that a core technology would be in place within the year: "It''s okay, Mr. Chang, we..." At this point, he smiled bitterly: "Our progress should not be as fast as you think. After all, there are many projects at hand and our strength is somewhat scattered..." "I have a rough idea of ??the size and capabilities of your 613 personnel." Chang Haonan waved his hand to interrupt the other party''s explanation, and then continued: "So, I didn''t say I would set a specific research and development timetable for you." "However, you must also realize that high-precision gyro stabilization related technologies will be very helpful for other projects in your hands, especially the development of inertial navigation systems for long-range missiles." Having said this, he stretched out his hand and tapped the report in front of him to emphasize: "Therefore, you cannot regard Condor 1 as a task of the same level as other projects. Instead, you should concentrate on completing it first, at least prioritizing the digestion and absorption of inertial stability control technology." Although Institute 613 is called the Electro-Optical Equipment Research Institute, its business scope is not limited to the research and development of photoelectric detection or laser TV equipment in traditional concepts. In fact, for most of the past time, their main job was to develop inertial navigation devices such as gyroscopes for various missiles and rocket weapons. After all, no matter how sophisticated the guidance form is, it must rely on motion-sensing stability control to achieve it. For a long time in the past, this was the main shortcoming that restricted the accuracy of our country''s long-range weapons. Lu Guangshun nodded and wiped the sweat from his forehead: "Yes...I understand." Chang Haonan has been in the management position of the Aviation Power Group for almost two years. Although most of the time they are responsible for front-line research and development work, if they really get serious, it can still give people a sense of oppression. Seeing that the other party was already tense, Chang Haonan did not continue to increase the pressure, but changed his tone to a relaxed tone: "As for the specific production form, you can talk to the aviation force and listen to the opinions of users." At the turn of the century, the People''s Liberation Army was still in a "whatever it is useful for" stage. Although this situation has changed a lot due to Chang Haonan''s efforts, it still takes time to change the way of thinking. A large number of technical staff still hold a self-centered equipment development idea and are not interested in solving user pain points. negative. It also became the main conflict between Party A and Party B during this period. As a reborn person, Chang Haonan not only has advantages in the technical field, but also has more advanced commercialization ideas. But in the past, this brilliance was often overshadowed by his other strengths. In short, Lu Guangshun next to him had already taken out his notebook from his pocket and looked like he was listening carefully. "If their budget is not enough, you can actually consider first producing a targeting pod with white light alone, or white light plus a low-light night vision channel. This is more controllable in terms of technology and cost, and can at least be used during the day or under illumination. Conditions are not that bad for night use. "And if the aviation force really needs night use and training, they can also consider importing some finished uncooled thermal imaging equipment from Thales to solve the most pressing problems of the army, and then localize it when conditions are available in the future. Alternative In fact, the current training level of the People''s Liberation Army aviation unit is indeed difficult to describe. Not to mention night fighting, night flying is a skill that is not practiced often for many units. As for air-to-ground precision guided munitions... It''s probably similar to the mid-range bullets from 1996. There may not be a few crews in the entire army who have fought. Therefore, for Chang Haonan, it is better to let aviation generally enter the era of precision guidance before considering further matters. As a fine tradition of our army, shooting rockets can certainly be retained. But a modern air force cannot rely solely on rockets for air-to-ground combat... (End of chapter) Chapter 919 Targeted "Sleeping Grass Party" Chapter 919: The "Sleeping Grass Party" Targeted In fact, Zhang Liangping was very curious as to why X was not followed by Y, but jumped directly to Z. However, after a battle between heaven and man, he finally decided not to ask the leader such a question. Just execute it and youre done In short, Chang Haonan''s opinion was unanimously adopted at the team member meeting the next day. In this way, the four main participants in the "Falcon Z" business jet project have reached a consensus. Of course, this time the Falcon Z is a serious civilian project, so a cooperation signing ceremony still needs to be held. in Paris. The group finally decided to send Comrade Lin Zuoming, deputy general manager, as its representative. Dassault was obviously in a hurry to start construction, so all processes were speeded up and simplified, and the time was finally set at... Five days later on September 11th. When Chang Haonan heard the news at the meeting, he almost couldn''t hold his breath. how to say This press conference will probably not attract much attention. After all, Chang Haonan has tried his best over the years to avoid having too much direct impact on the Middle East. There is no reason to go too far in that matter. The reason why he finished most of the energy-consuming things last month was to wait for this wave and see if there would be any opportunities to take advantage of the chaos. However, there was a sudden wave of intensity from the French in the middle. Ultra-short laser processing is still in the prototype verification stage after all. Except for a very few people, including Chang Haonan, they actually do not know how to specifically set processing parameters based on the characteristics of the materials being processed. In fact, even Chang Haonan can only roughly determine a direction, and then conduct specific processing tests, accumulating data while determining process details. The M88, as an engine that is basically French, or may have American origins, is naturally different from the turbofan 10 in the use of materials. In other words, before processing the turbine disk and turbine blades for the M88-3 engine, Chang Haonan still needs to personally be responsible for a considerable part of the work. Fortunately, Liu Yongquan''s work efficiency is not as fast as Chang Haonan''s. In addition, there are not many prototypes, and Snecma can barely cope with it using electrochemical processing, which finally leaves some free time for Chang Haonan. However, if we do not look at it from the perspective of hindsight, the first eight months of 2001 were actually quite uneventful. Therefore, there are only a very small number of people who can predict in advance that something big will happen. While Chang Haonan was ready to take advantage of the situation, many projects influenced by him were still advancing in different forms. Qin Province, Haojing. A few hundred meters away from the fence of Hokyung Airport, a group of young people with cameras in their hands were squatting on a slightly elevated slope, always ready to press the shutter. Through the high-power lens, they could vaguely see a fighter jet that had been painted in gray and was making final preparations before taking off on the tarmac of the flight test center. Its just that the view here is so poor that its difficult to take very transparent photos of the interior of the airport. Therefore, these people have been squatting here for two days, just waiting for the plane to take off Due to the continuous expansion of the city and the rapid development of the Internet in the past two years, many people in Chengdu have long mentioned that there is a new type of aircraft that has never been seen before and is undergoing intensive test flights. Not long ago, another witness saw this strange-looking aircraft appearing in Haojing. They came here just to capture a clear photo. In fact, as someone who has been paying attention to China''s aviation industry for a long time, it is not difficult to guess the model of the aircraft in the distance just based on its distinctive design features. It should be a J-10. However, unlike the version unveiled at the 50th Anniversary National Day military parade the year before last and the Paris Air Show last month, this aircraft not only uses a non-adjustable DSI air inlet, but the entire fuselage is no longer the same as before. She became slender and slim, and became much richer. In particular, the iconic "wasp waist" on the old model has been replaced by a more rounded design. Obviously, this is an improved model based on the J-10, and it still has most of the characteristics of the J-10. But the improvement is really huge. It''s a bit similar to the radical change from F18C/D to F18E/F, or from F16 to F2. All this seems to mean that the air superiority and even air interception functions originally carried by the J-10 are weakening and are developing in a more versatile direction. "From this angle...the fuselage section looks a bit like EF2000?" One of them took his eyes away from behind the binoculars and asked his companion who was preparing to operate the camera next to him: "Anyway, I am much fatter than before..." Seeing that the plane had no intention of taking off, the latter also turned around and retorted in a low voice: "How can this be called fat?" "It''s obviously the feeling of a girl who was originally sixteen or seventeen years old and has grown into her twenties. This is called mature beauty. You are too young to understand this feeling..." This person was obviously an experienced driver, and this description was unanimously approved by his companions. As senior undercover gang members, their concealment equipment and level are comparable to those of professional scouts. Unless it''s close to your face, it''s hard to notice anything strange in the grass. This is also the biggest reliance on their repeated success in sneak shots. In a situation where the enemy is in darkness and we are in the dark, the busy staff inside the wall obviously have no way of knowing that they have been included in the viewfinder... At this time, they were busy loading test equipment on the J-10, numbered 1007. A cylindrical pod with the same color as the fuselage. Around the aircraft, there were many technicians from Luoyi 613 Electro-Optical Equipment Research Institute, who were making final adjustments to the pod. There is no doubt that this is what Chang Haonan got from Thales Group through the M88 engine project. Damocles pod. According to the contract, China will introduce a full set of technologies to localize this pod. It''s just that the French are not fools, and they know very well that they don''t let go of the hawk until they see the rabbit. At this time, the M88-3 is still under development, and the M88-4 is even worse. Obviously, it is impossible to destroy the family''s fortune so quickly. Fall out. But in order to show their sincerity, they asked Thales to specially produce several open data bus pod hardware, so that China can install the pods on its own aircraft. Naturally, this task was handed over to the Luoyi 613 Institute, which is affiliated with the Aviation Power Group. That''s why today''s test came about. Aircraft No. 1007 is the first prototype of the two-seat J-10AS - The single-seat J-10A has entered the final stage before small batch production, and there is really no time left for testing. Besides, for this kind of test mission that depends on the pod, it would be more appropriate to hand it over to a plane with two pilots. For the flight test institute, the job of serving the J-10A is already a familiar one. Unlike the J-11, which has a different model for each model, the technical status of the single- and double-seat models of the J-10 is almost exactly the same. It is equipped with a lower-casing engine that does not require climbing up and down during maintenance. The experience was very friendly for the ground staff. Ten minutes later, technicians from the 613th Institute completed the final inspection and debugging of the pod, and together with the ground crew, evacuated from the area around the aircraft. As one of the advantages brought about by the "wide body and fat body", the J-10A has sufficient space to install an auxiliary power system (APU) in the body, so it does not require the assistance of a power supply vehicle and an air source vehicle every time it is started. In the cabin, pilot Ning Songtao, who was in the front seat, started the self-starting process of the aircraft according to the manual. As the APU exhaust hatch on the back of the aircraft opened, a faint flame spurted out, and the unique scream of the turbofan engine quickly increased from weak to strong, reaching the ears of everyone present. After the engine started working, the electrical system of engine No. 1007 started quickly and completed the self-inspection process in a short time. In the past, these steps would have taken nearly half an hour to complete step by step with the assistance of ground staff. But now it only takes a few minutes. Ning Songtao adjusted the engine speed to idle and then released the brake. The plane then began to slowly move forward on the tarmac. The fly-by-wire flight control combined with the FADEC system makes this series of movements smooth and smooth, with almost no lag. While taxiing to the take-off position, Han Shuming, who was in the back seat, finally said goodbye to the fate of ballast and began to lower his head to adjust the probe of the "Condor-1" (the name of the Chinese version of Damocles) pod. angle. Although the main function of the Condor 1 pod is to provide target guidance for laser-guided bombs or missiles, the design of the Damocles pod itself determines that it actually has anti-air capabilities. However, the pod hung under the fuselage has a poorer field of view for air detection than the EOTS located on the nose, so this function is rarely used. But after all, while the plane was taking off, Han Shuming couldn''t stare at the runway below his buttocks, so he had to look directly in front of the plane. "The effect of this French thing is really good..." He whispered to himself. Even if the image is magnified several times and the carrier aircraft continues to accelerate on a slightly bumpy runway, the pod''s two-axis stabilizer still maintains the image in a fairly stable state. Han Shuming tried tapping the screen and set a signal tower far ahead on the left side of the runway as a target. The image recognition function quickly distinguishes the target from the background and automatically controls the pod probe to lock on the signal tower. Even after the plane took off and climbed, it did not unlock. In fact, optoelectronic equipment in the middle and late Cold War, such as the MiG-27K Puffin-23, already has this function. But for Chinese pilots in this era who have almost never been exposed to airborne optoelectronic aiming equipment, it is definitely a relatively new thing. What''s more, Damocles also supports both infrared and visible light signals. Thinking that we haven''t reached the test airspace yet, Han Shuming, with the mentality of giving it a try, pressed the "infrared" button next to the multi-function display and adjusted the field of view to the thermal imaging channel. By the way, the lock on that signal tower was unlocked. Just at this time, Ning Songtao in front also happened to level the plane gradually and enter the shallow climb stage. This correction made Han Shuming accidentally discover something interesting. Several small white dots appeared in the field of view of the multifunctional monitor. And that should be a hillside outside the flight test institute... Out of curiosity, he directly increased the image magnification of the pod to the maximum. Then, I saw a few things that looked a bit like humans... "Tower, this is Unit 1007." Han Shuming reported directly to Radio Network: "About 140 directions from the airport and 800 meters away. It seems like there is a group of people secretly filming us?" (End of chapter) Chapter 918 Falcon Z Chapter 918 Falcon Z ?In cross-border cooperation projects like this, especially those involving sensitive models, what really consumes the most time and energy is often not technical issues. Therefore, after the overall upgrade plan of the M88-3 was confirmed by both parties involved in the project, the next thing was actually simple. The Snecma engineers who had just evacuated recently returned to No. 606. Relevant funds were also paid from Dassault''s accounts to Snecma and Aerodynamics respectively. And, of course, Thales Group The M88-3, including the subsequent M88-4 package upgrade contracts, were all proposed under the framework of the "Falcon NG" business jet program. This includes the transfer of technologies related to the "Damocles" photoelectric targeting pod. Thales doesn''t care about technology transfer, after all, it''s not the first time, but it is impossible to contribute to others in vain, so the transfer payment naturally falls on Dassault''s head. But then again, for Dassault, this money is entirely additional expenditure incurred to meet China''s needs. Even from a purely accounting perspective, it is not easy to settle down... "boss." The day after Ian Vista and Liu Yongquan finalized the contract, Ed Steiner came to Serge Dassault with a financial expenditure statement: "The amount we spend on the Falcon NG project this year will most likely exceed the standard." "I know that." Dassault nodded naturally: "There will be no problem if you overspend a little. I will let the finance department handle the whereabouts of the funds." He didn''t even turn to the financial statement. As president and CEO, Dassault can ignore other details, but finance and personnel must be firmly in hand. Ed Steiner is actually the technical leader and is not responsible for business management. Therefore, Dassault must have known about the cost overruns of the Falcon NG project earlier and in more detail. After all, it was just a shell project. If it only involves three or two small amounts of funds, it can also be interpreted as feasibility demonstration and early project research. But as more and more capital flows are involved, overspending is inevitable. Dassault didn''t take it seriously at all. Spending so much money to support so many financial experts, isnt this when it comes into play? However, Ed Steiner did not give up there. Since he came here specifically for this matter that was not within his jurisdiction, he must have a deeper purpose. All the previous steps are just foreshadowing: "Actually, I have a better solution." This is the real purpose. Dassault finally stopped writing in his hand and raised his head to look at the old man who had been his partner for many years. After a few seconds, he gestured to the other party to continue. "How about we...really develop this Falcon NG?" Ed Steiner simply said something shocking: "I have read the report submitted by the civil aviation department before. Of course I know it is just to deal with investors, but there is actually nothing wrong with the content." "Large business jets with ultra-long range are indeed the future development direction. Although we have several paper plans in this field, we are still blank in terms of products, completely lagging behind Gulfstream and Bombardier." "Furthermore, as long as the Falcon NG project is transformed from an empty shell into a real project, even if there are some additional expenditures, it will not seem so abrupt." Ed Steiner worked in the civil aviation sector before rising to executive positions at group level. These things are considered old skills. "But now that Rafale''s R&D expenditure has not been fully recovered, it would be risky to directly launch a large-scale project..." Naturally, it is impossible for a very large group like Dassault to be like a self-employed person, where all expenses and income are settled in cash. At the same time, if the stall is too large, the capital chain will become more fragile. "Bring them together..." Ed Steiner obviously had plans: "Anyway, Thales, Snecma, and of course China, have all **** with us on the Falcon NG project..." Hearing this, Dassault suddenly sat up straight... In short, in just a few days, a project research and development project document involving four participants and far longer than previously expected was placed on Chang Haonan''s desk. "Mr. Chang, this is a new cooperation proposal that Dassault Group suddenly proposed to us. Please take a look." Zhang Liangping, deputy director of the Second Comprehensive Office, handed the document to Chang Haonan, then withdrew and said nothing. In fact, the chief planner of the group, or in other words, any leader of the group, cannot make decisions on such major foreign-related cooperation matters alone. It must be done after a collective vote. But considering that the entire project starting from Turbofan 10 was directly or indirectly handled by Chang Haonan, if he made a statement at the meeting, it would naturally carry considerable weight. Falcon NG Chang Haonan saw the title on the cover at a glance: "Isn''t this a shell project just for the purpose of developing the M88?" As he thought about it, he opened the Chinese text of the document. Soon, he understood what Dassault meant. Anyway, the money has been spent, everyone''s relationship is in place, and the conditions are relatively mature. Then Dongfeng can completely fake it and make this Falcon NG real. If you calculate the time, this project started in 2001 is most likely the Falcon 7X ultra-long-range business jet in its previous life. A model that continues Dassault''s three-engine design habit. But... The past was before and the present is now. Chang Haonan can''t say what Falcon NG will eventually develop in this timeline. Because in this project document, Dassault proposed a total of 3 types of design plans that are similar with some minor differences. Each category is divided into 4 types with different sizes, and the maximum take-off weight ranges from 20 tons to 45 tons. Apart from anything else, at least they all adopt the more common tail-slung double-release layout. Including the avionics system, Honeywell did not continue to use Falcon 900 and Falcon 2000, but was handed over to Thales Avionics, a subsidiary of Thales. As for power, it is even more earth-shaking. This is also the main reason why the French must involve the Aerospace Power Group - Dassault and Snecma plan to develop a series of medium-bypass-ratio low-thrust turbofan engines without afterburner and with thrust ranging from 3.5 tons to 6.5 tons based on the M88 core engine. Chang Haonan is almost certain that the reason why Falcon NG was able to become a full-time official was to avoid wasting the dumplings made by M88 with vinegar... Having said that, this plate of dumplings still tastes good On the one hand, from the perspective of a reborn person, ultra-long-range business jets do have a very broad space for development in the 21st century, and Dassaults prediction is not wrong. On the other hand, turbofan engines with low thrust actually have great potential. However, the Aerospace Power Group is limited by personnel and capital limits, and it is unable to launch such a large business alone for a while. Borrowing the French''s chickens to lay eggs seems like a good choice. Of course, the other party probably thinks so too. Borrowing chickens from each other is a yes. In any case, if these models can really be put on the ground, then if you want to build large UAVs like the Global Hawk in the future, at least you won''t have to make do with a turbojet 7 without afterburner like in the previous life. Thinking of this, Chang Haonan basically had an idea. Although Dassault''s sudden attack is a bit suspicious of putting other companies on a rack. But while there is money to be made now, there will be other uses in the future. There is really no reason to disagree. Just control the risks appropriately. "The plan is pretty good." Chang Haonan closed the document and said to Zhang Liangping: "That''s the name... I suggest the French change it." The former said, reaching out and lightly tapping the words "Falcon NG" on the cover. NG, which is NextGeneration, the next generation. Affected by the indiscriminate bombardment of various abbreviations in his previous life, Chang Haonan has been allergic to elements such as "advanced", "next generation" and "future" until now. Although he had tried a similar name before as a joke, the abbreviation was so long that he couldn''t even remember it. So later on, unless it was on official documents, everyone started to use shorter abbreviations. Of course, Falcon NG does not involve this aspect. Anyone who has seen it will never forget it. However, according to Chang Haonan''s experience, for any project with these elements, nine out of ten will die suddenly midway. In other words, the Gripen NG and Boeing 737NG are relatively normal. If the project is completely controlled by him, then this little bit of mystery doesn''t matter. But the French were involved after all. Still too unlucky. "Um" Although Zhang Liangping didn''t understand why Chang Haonan cared about such details, he still nodded: "Dassault will probably not reject such a small problem. What do you suggest changing it to?" Chang Haonan really didn''t think about it for a while, so he lowered his head and fell into thinking. Seeing that his leader was silent, Zhang Liangping thought that the other party wanted to hear his opinion, so he tentatively asked: "Our business jet model is expected to be world-class in terms of economy, safety and comfort. Otherwise, how about calling it Falcon MAX?" This name immediately made Chang Haonan''s eyelids jump. Laughing to death. Your suggestion is very good, dont suggest it again in the future. "I remember that Dassault''s last business jet project seemed to be called Falcon X." He directly ignored the even more unlucky name of Falcon MAX: "Then let''s call him Falcon Z..." (End of chapter) Chapter 928 “Enduring freedom” Chapter 928 Enduring Freedom after one day. On the morning of September 13th, Beijing time, the US held its first official press conference in response to the attack two days ago, and for the first time directly disclosed the internal investigation report of the intelligence department. Compared to the previous life, it was about 12 hours earlier. The results of the investigation naturally pointed directly at Al Qaeda and Aiwuhan, who provided shelter to its leader. President Bush also gave a very strong and profound speech earlier, saying that "our military is extremely powerful and ready to go" and "law enforcement agencies will do their best to bring the murderers to justice" and so on. At the time of this press conference, Chang Haonan was in his own office at the Aviation Power Group, flipping through a meeting document recorded in both Chinese and French Lin Zuoming brought it back from France. The two are currently discussing the specific research and development plan for the "Falcon Z" business jet project. The latter was waiting for Chang Haonan to read the memo of the meeting. He was really bored, so he turned on the TV in the corner of the office. There happened to be voices reporting on the press conference. The content mentioned in the news was almost the same as what Fu Youquan revealed the day before. Therefore, Chang Haonan actually didn''t pay much attention to this. But for Lin Zuoming, who had just returned to China and even worried about it for more than ten hours on the plane, the feeling was quite fresh. "I told you, Mr. Chang, from now on, I can only hope to be successful..." He raised his hand and looked at his watch before continuing: "In just about 40 hours, they were able to produce such a detailed investigation report?" "40 hours is not short." Chang Haonan happened to have a headache due to the dense characters in the meeting minutes, so he raised his head and prepared to change the topic to a lighter topic and take a rest: "Think about it, if something like this suddenly happened, the whole country would be extremely panicked. Even the U.S. stock market and the U.S. dollar exchange rate would plummet." "Whether it is to appease public sentiment or boost investment confidence, we must make a statement as quickly as possible." "It is the night of the 13th local time now. If it is delayed until after the exchange opens tomorrow morning, the loss will be even greater." In Chang Haonan''s impression, after such an unprecedented disaster, thanks to the relatively quick and decisive handling, the Xiang Party''s support rate even increased a lot. This shows that at least at the domestic level, the coping strategy of small bushes is still okay. "But such a big case can really be investigated in less than two days?" Lin Zuoming obviously still doesn''t believe it: "Before I returned to China, I heard many people in France saying that they suspected that Americans directed and acted this time. I didn''t really believe it at first, but this..." "It doesn''t feel like it''s completely impossible..." For this attack, he was a complete outsider, so he had no special access to information. The advantage is that you can make random guesses without any psychological burden, just like the people who eat melons. But Chang Haonan can''t. "On the one hand, when things have developed to this extent, it is no longer important whether the evidence is true or false." He shook his head and replied: "The key is to find someone or a force that everyone can agree with to take the blame to quell public anger." "Furthermore, as far as my personal judgment is concerned, these things should and are indeed true." After hearing Chang Haonan''s categorical judgment, Lin Zuoming''s thoughts obviously began to waver. But not much. "Then why didn''t they advance..." The latter did not finish the question, but the meaning was actually very obvious - What were you doing earlier? "How should I put it... The sources of intelligence information are too complicated. We receive a lot of contradictory and even self-contradictory content every moment. It is indeed a bit too complicated to make accurate judgments in advance." Chang Haonan picked up the memo again and said while turning the pages: "However, now that things have happened, it will definitely be much easier to look back and find relevant evidence from the perspective of hindsight." "Take the topic I am researching as an example. This is equivalent to a data dimensionality reduction process, and it directly reduces high-dimensional data into two dimensions. It cannot be directly analyzed by computers, but can only be analyzed with the naked eye and the human brain. You can all find patterns Lin Zuoming had an unbearable expression on his face, thinking that it would be better not to give this example if you gave it, but it would not be easy to offend Chang Haonan, so he got stuck for a while and didn''t know from what angle to continue the topic. Go down. Fortunately, Chang Haonan has returned his attention to the document in front of him: "Mr. Lin." After about ten minutes, Chang Haonan, who finally read the last page, raised his head again: "I have no objection to most of the content of the meeting, it''s just..." Chang Haonan said, turning the document back to the front and pointing to the content on a certain page: "In addition to sharing the engine development work with Snecma, I hope that we can also be responsible for the research and development of the engine nacelle." Lin Zuoming took it and looked at it repeatedly, and then nodded: "I will raise this request with the other three partners at the next R&D meeting." "but" He touched his chin and hesitated for a moment, but quickly spoke again: "Mr. Chang, the engine integrated nacelle should be part of the aircraft design... This time we are cooperating with the French, but there is no participation from the aviation industry... Or are you planning to do it yourself..." Because they were divided according to business at the beginning, Chang Haonan is the only one in the entire aerospace power group who has experience in overall aircraft design. "It''s not really in person..." Chang Haonan waved his hand: "I have two good seedlings in my laboratory, and I''m going to find an opportunity to give them some exercise." Hearing this sentence, Lin Zuoming''s eyes widened: "this" What he originally wanted to say was that it was too bold to let students directly work on such a high-stakes project? However, a sentence was stuck in my throat and I couldn''t ask it out - Logically speaking, it is indeed a bit inappropriate to ask this kind of question in front of Chang Haonan, who participated in the August 3rd Project during his undergraduate studies. But from a rational perspective, Lin Zuoming feels that it is unlikely that a second Chang Haonan will appear. "Don''t worry, Mr. Lin." Chang Haonan naturally could see what the other party was worried about: "Although I will not personally preside over the design, but after all, they are students with my name on them, and they will definitely be strictly controlled..." In fact, Wang Jie and Qin Haiyang, the new doctoral students he recruited this year, are both majoring in mechanics. However, in 2001, the field of aerodynamic optimization focused on key areas such as the wings and fuselage, and there was no time to pay attention to such minutiae as the engine pod. Therefore, the focus of the pod design is to reduce the weight and resistance as much as possible while ensuring that the strength reaches the standard, and it is best to achieve some noise reduction and noise reduction functions. These are exactly related to the research directions of Wang and Tan. "well" Seeing that Chang Haonan had made it clear that he would tell the truth, Lin Zuoming''s worries eased a lot, and he sighed quietly: "The way your school treats students is really enviable..." "I heard that Academician Du recommended you, Mr. Chang, to the August 3rd Project in this way, despite all opinions." Looking at Lin Zuoming, who was a bit emo, Chang Haonan could only respond with a joke: "Mr. Lin, my enrollment quota for next year has not been decided yet. If you are interested, I actually don''t mind recruiting an older doctoral student..." Lin Zuoming hadn''t turned around at first, and it took him about half a second to realize that the "older doctoral student" the other party was referring to was him: "You kid still wants to take advantage of me..." "We can discuss our own affairs from now on. I will continue to call you Mr. Lin, and you will call me Teacher..." "Go! Go! Go" For a time, the office was filled with happy air... The plot of the next half month is almost exactly what Chang Haonan expected. In other words, because the United States in this timeline is even more impatient to prove its military strength again, all aspects of its actions are even faster than in the previous life. Three days after formally identifying the attackers and issuing an ultimatum, Defense Secretary Donald Rumsfeld officially announced on September 27 that because Eihan refused to hand over the suspect who planned the attack, the U.S. military would launch a " Infinite Justice" to combat the forces of terrorism and their patrons. On September 20, in order to avoid religiously sensitive terms, the operation code name was changed to "Operation Veritas," but almost at the same time the news was disclosed, it was finally confirmed as Operation Enduring Freedom. On the same day, the United States reached a secret agreement with China and the Collective Security Treaty Organization to use five specific airports in Central and East Asia to transport personnel and logistics materials that do not involve combat equipment for Operation Enduring Freedom. In exchange, the former will make concessions in multiple areas including nuclear arms control, development of maritime rights and interests, and high-end technological cooperation. Four days later, on September 24, the Security Council approved the authorization for Operation Enduring Freedom. At the same time, the first batch of logistics supplies began to be transferred from the United States and European countries to the five previously arranged airports... Finally, after a week of intense preparation. October 2, 2001. 5 days earlier than in the previous life. As the first F15E dropped two GBU16 laser-guided bombs on a military camp near Kabul, Operation "Enduring Freedom" finally officially kicked off. (End of chapter) Chapter 929 Chang Jiayao’s classmate Chapter 929 Chang Jiayaos classmates For most people, Operation Enduring Freedom is only the beginning. No one knows where Americans will go next. However, for Chang Haonan... it''s the opposite. When he saw on the news that a C130 transport plane full of Marines took off from Hanabat Base in Uzbekistan and finally landed at Bagram Air Force Base in Aiukhan, his heart was filled with worry. fell. Ground units are easy to drive into. But it would be difficult to withdraw. Of course, for the melon-eating people in 2001 and the People''s Liberation Army, the sudden emergence of multiple US military bases around China did not seem to be a good phenomenon. Including Chang Haonan also heard some news. For example, border defense units located in the west and northwest of the country have been put on alert. As well as the 12 latest batch of improved J-8Cs that will be delivered by the end of the year, the planned deployment location has also been directly changed from the original 132nd Regiment of the 44th Air Division of the Yangcheng Military Region to the 109th Regiment of the 37th Aircraft Division of the Jincheng Military Region. The latter news even came up when Chang Jiayao went to Chang Haonan''s house for dinner one day during a break. The latter''s first reaction after hearing this was that he almost laughed out loud - This unlucky 132nd Regiment of the 44th Division, in its previous life, until the regiment was changed into a brigade and became the 132nd Aviation Brigade of the Southern Theater Command, it was still flying pitifully with the J-7B/H that had been passed through countless hands. And on this timeline, thanks to the early increase in China''s military aircraft production capacity, it is about to take over and take charge, but it turns out that such a thing has happened again... Considering that the production capacity of Factory 112 has gradually begun to shift to J-11B and J-11BS, the priority deployment direction of heavy aircraft is not in the south... I''m afraid the J-7B in their hands will last a few more years. As for the 109th Regiment, theres not much to say. They originally took over the batch of J-8E/J-8I that retired from the 3rd Regiment of the 1st Air Division, Zheng Liangqun''s old unit. Now, although they have stepped into the spotlight and changed their equipment in advance, it can be regarded as a foreshadowing. Chang Haonan put the food on the table while chatting with his sister. Suddenly, he realized a problem. "Speaking of which..." A few seconds later, Chang Haonan sat opposite Chang Jiayao, changed the topic and asked: "How come you know so much about the affairs in the Jincheng Military Region?" "Well" This sudden question made the latter''s expression stagnant, and after a while he explained with insufficient confidence: "They are all air force aviation systems... Which units have changed what equipment... and they will not be kept secret from our own people." "Brother, you just didn''t take the initiative to ask. If you pay attention, someone will tell you..." This explanation seems reasonable. At least it would be okay to deceive outsiders. But obviously Chang Haonan cannot be convinced: "Don''t do this." He immediately stopped Chang Jiayao''s attempt to seduce the tiger: "If it is not kept secret internally, it is not kept secret, but the army will not make an announcement about the change of equipment. The J-8C has not been the latest model that has attracted much attention for a long time. You have to at least check or ask specifically before you can know the news of the change. " "You have just graduated less than half a year ago. It would be good if you can remember the surrounding areas of the capital and the neighboring troops around your school. Why are you so concerned about the situation in Guangxi Province and southern Xinjiang?" Chang Haonan''s eyes narrowed slightly, and his gaze gradually became sharper. Across the dining table, Chang Jiayao suddenly felt that the rice in her hand... wasn''t fragrant anymore. "Well, brother, I also brought you a gift..." Chang Haonan''s eyes did not waver at all. Clearly, diversionary strategies dont work. "I...some of my classmates were assigned there, so I knew there was Group 109..." Chang Jiayao had no choice but to give further explanation. "oh?" A meaningful smile appeared on Chang Haonan''s face: "Classmate...why haven''t I heard you mention it before?" He didn''t even need to ask if it was a male or female classmate The 37th Division is a fighter division, and Chang Jiayaos female pilot class majored in transportation/bombing. Except for Chang Jiayao, who was assigned to the 34th Division to fly special aircraft, the rest of them went to Zhenger. The transport aircraft unit of the Eight Classics. So it must be a man. That''s how it is, people. Although Chang Haonan also hated his parents asking questions about his personal problems, in front of Chang Jiayao, he still seamlessly turned into the person he hated most in the past... Moreover, lets take a step back. Old bachelor, that was already a lifetime ago. In this life, after dancing together two years ago, there was still some progress between him and Yao Mengna after work. So it makes sense to worry about your sister''s love life. "Ahem" In a state of nervousness, Chang Jiayao ate a chili pepper from the boiled pork slices and choked to tears. "There are so many classmates in our class, how can we possibly tell you about each one..." After finally recovering, Chang Jiayao continued to talk about him. "You also know how many classmates you have?" Chang Haonan was delighted: "Every year, students from the flight academy will be assigned to almost every aviation division in the entire army. In general, all pilots in the air force will be your classmates..." The implication is that this "classmate" is obviously extraordinary. Finally, Chang Jiayao gave up her struggle: "Just... we had a good relationship when we were in school..." "What''s the young man''s name? What''s his family background? Have I met him?" Chang Haonan was directly involved in a fatal three-way attack, and then looked at the hesitant Chang Jiayao: "You have to understand that if you don''t tell me now, your parents will ask next time..." This sentence is indeed very lethal. "Don''t...I haven''t decided whether to tell them yet." Speaking of this, Chang Jiayao''s face turned red: "You must have never seen it, but you may have heard of his name. His name is Zheng Hui. He was also selected to participate in the military parade in 1999..." "He...he is quite good and his grades are good, but...but the assigned place is too far away from the capital, so I haven''t decided yet..." "hiss" Chang Haonan felt a little numb when he heard the name Zheng Hui - He had indeed heard of the other party. However, it has nothing to do with the military parade. Chang Haonan was not actually directly responsible for any specific work on the 50th anniversary military parade, so it was impossible to remember the names of every participating pilot. As for this Zheng Hui... He is the son of Zheng Liangqun. Not many people know about this. Including Chang Jiayao. Judging from her reaction, she probably didn''t know either and just treated her as an ordinary student. On the other hand, the relationship between Chang Jiayao and himself has always been hidden underwater. From common sense, Zheng Hui should be equally ignorant. happy. Mr. and Mrs. Smith belong. They are all well hidden. Logically speaking, it should be considered a good thing to fall in love freely and happen to be in the right household. But Chang Jiayao''s concerns are not wrong. It is indeed too far between the capital and southern Xinjiang. Even if both of them were airmen, it wouldn''t be enough to bridge the gap. "well" Chang Haonan sighed softly: "You should have told me about this when you were selecting your employer..." Chang Jiayao did not clearly express her preference for the station at the time, but she just hoped to be as close to the front line of the military struggle as possible, so Chang Haonan arranged for her to be assigned to the 34th Division. After all, at this moment, China''s transport aircraft units really don''t have many tasks related to "military struggle". However, when talking about this topic, Chang Jiayao shook her head firmly: "Now this unit is the closest to the front line among the original options. There is no way I would give up here for someone..." have to. Chang Haonan held his forehead and shook his head. He should have guessed. If Chang Jiayao was a love brain, she would not have been single until the age of 40 like herself in her previous life... "never mind." While Chang Haonan felt a little helpless, he didn''t think there was anything wrong with his sister''s choice. There is no right or wrong way to prioritize career or family. "You are right, life-long events should be considered carefully..." Of course, this is just superficial rhetoric. What he was actually thinking about was "I have to talk to Zheng Liangqun about this matter when I have time." (End of chapter) Chapter 930 Challenges from COMSOL Chapter 930 Challenges from COMSOL Although he said he wanted to chat with Zheng Liangqun, he had been transferred out of the capital after commanding the 50th National Day military parade the year before last and went to work at the Jiangcheng Command Post of the Air Force. At this juncture, it was impossible for Chang Haonan to fly thousands of kilometers to find someone just for some personal matter. Besides, Chang Jiayao and Zheng Hui are not 23 yet, so there is still time. Therefore, Chang Haonan is still preparing to return to his own job first He has not forgotten the expectations that brother units had for Torch Group at the aerospace theme meeting on September 11th. In any case, the TORCMultiphysics software must undergo a major update. However, what Chang Haonan didn''t expect was that in the more than three weeks since he focused his attention on the attack, the Torch Group had already ushered in a strong competitor. October 8th, the first working day after the National Day holiday. Song Jingming, Office Director of Torch Group, and Wei Yongming, Head of the Technical Department, came to the Aviation Power Group with a report - Now that the Torch Group has become a wholly-owned subsidiary of the Aerospace Power Group, Chang Haonan saves the trouble of running around every day and can handle most specific matters at the group headquarters. "Mr. Chang." There was a knock on the door, causing Chang Haonan to look away from the computer screen and look at the office door. "Old Song...and Old Wei?" Chang Haonan looked happy, and at the same time stretched out his hand to signal the two of them to sit down on the sofa: "You two arrived just in time. I''m planning to contact you in two days." As he spoke, he turned his office chair and faced the two people who looked hesitant and said: "Some time ago, I discussed with several core users. The plan is to release version 2.0 of TORCH Multiphysics from the end of this year to the beginning of next year. The main updates of the new version are, first, the introduction of a new turbulence based on DNS simulation and RANS simulation. model, the second is to introduce the level set method for multi-phase interface simulation and topology optimization problems. "Especially the latter, it can be said to be the top priority of this upgrade. I have already pushed the theoretical part of the conservation level set method to you before. I wonder how it is currently being advanced at the application level?" Naturally, there was no chance for Song Jingming to speak up about this purely technical issue. So Wei Yongming immediately took over the conversation: "Mr. Chang, based on the algorithm theory you gave us, we have implemented numerical simulations on a second-level time scale for common multi-phase processes such as combustion, atomization and evaporation in the internal test version." "As for the topology optimization issue, this is still being tackled, but the progress is pretty good. If the time node for the new version is the end of this year... it may be a bit nervous, but there should be no problem before the Spring Festival next year." Wei Yongming was born in Qinghua University, and was initially responsible for developing embedded operating systems for Torch-C.B. Ferrari. However, he soon showed his talent in other development fields and was transferred to the head office to take charge of the daily work of the entire technical department, which relieved a lot of Chang Haonan''s pressure. "Before the Spring Festival..." Chang Haonan was naturally quite satisfied when he heard the other party''s answer, but he still lowered his head and pondered for a moment: "Old Wei, we should try not to make our comrades work overtime during the Spring Festival holiday. If the progress is really fast, then we can accept that the new version will be launched before the second quarter of next year." Whether it is Torch Group or the entire Aerospace Power Group, due to the special nature of the work, continuous overtime work is objectively unavoidable. But after all, Chang Haonan had worked as a screw for decades in his previous life, so he could still think about it from the perspective of a worker. You know, in the field of numerical calculation software, Torch Group has achieved a global lead in a literal sense - I worked overtime when I was lagging behind, but now I am ahead. If I still work overtime, wouldnt my lead be in vain? Therefore, in industries related to computer algorithms, although Torch Group does not have the best pay, it has always been relatively individual in terms of work intensity. Wei Yongming, who is directly in charge of the technical department, agrees with Chang Haonan''s philosophy in this regard. But this time, he did not nod immediately. Instead, he hesitated for a moment, looked at Song Jingming next to him, and then said solemnly: "Mr. Chang, there is a situation now. You are not in the company during this period, so you may not know about it yet." "oh?" Chang Haonan raised his eyebrows: "Tell me more specifically?" Just last month, two days before the National Day holiday, the Swedish company COMSOL suddenly announced that they would launch the 2.5 update of COMSOL M Ultraphysics in late October. Wei Yongming stood up and put the report he had just held in front of Chang Haonan: "The specific situation is written in this report for you to take a look at." Chang Haonan immediately sat up straight and opened the folder on the desktop. In fact, the reason why he named his numerical calculation software TORCH Multiphysics was inspired by the Swedish company''s products. Of course it was inspired by the previous life. But due to a strange combination of circumstances, on this timeline, the opponent became the challenger chasing after him. Its just that in the past few years, many friendly companies, including COMSOL and ANSYS, have not been able to truly shake the dominant position of Torch Group. The contents of the report are not complicated to summarize. The Swedes hired a very capable American professor to develop a set of unstructured grid generation algorithms that can adapt to drastic changes in the interface by referring to the unstructured grid generation algorithm proposed by Chang Haonan a few years ago. Lagrangian method. Since this method does not involve high-precision formats, but follows the traditional finite volume method, it is very universal. The most important thing is that when the quality of grid generation is poor, a certain accuracy can still be guaranteed. . "hiss" Looking at the content in front of him, Chang Haonan frowned in confusion. If the other party can really do this without using high-precision formats, it will indeed have a considerable impact on TORCMultiphysics, and even the 2.0 version of TORCMultiphysics. You should know that although the grid generation method specially developed by Torch Group is said to be highly efficient, it is also more efficient than others when the quality of grid generation is the same. Generally speaking, this step still takes a long time. In most cases, it is impossible for users to find the optimal solution in one grid generation-simulation calculation cycle. Therefore, if you can use low-quality meshes to achieve 80% or even 70% effect, the appeal will be very high. The only problem is... Is it really possible? "Old Wei." Chang Haonan closed the report and looked up at Wei Yongming: "Is there any more specific technology... uh... technology that is unlikely to be made public? A more specific theoretical derivation process will also work?" "The person who developed this method was Professor Anthony Jameson of Stanford University." Wei Yongming replied: "He has indeed published several papers related to the finite volume method recently. If you need it, I can send it to you when I get back." "That''s not necessary..." Chang Haonan came back to the computer: "I''ll just check it myself..." He quickly typed A. Jameson in the search bar, then selected Stanford University in the filter. Soon, dozens of related papers popped up. It was only then that Chang Haonan vaguely remembered the name. "Let me go...it''s actually him?" Anthony Jameson. Before the 1990s, he was the man who made the most theoretical contributions to the field of CFD. It is no exaggeration to say that throughout the 1970s and 1980s, Professor Jameson made more contributions to the promotion and application of CFD than all other people in the world combined. Although Professor Jameson''s rate of producing results has slowed down slightly since the mid-1990s, Chang Haonan still feels somewhat pressured by his opponent''s ability to invite such a legendary figure. He sorted the search results by time and quickly found the article Wei Yongming mentioned. Afinite-volumemethodfortheLagrange-Eulerequations Published in The Journal of Chemical Physics. Compared with the JCAS where Chang Haonan''s paper was published, this JCP is definitely the top established journal in the industry. "If this is the case, then the tradition of not working overtime during the Spring Festival may have to be broken..." Chang Haonan thought this while opening the PDF document just downloaded to the desktop... (End of chapter) Chapter 931 Maintaining the status quo Chapter 931 Staying unchanged in response to ever-changing changes Time passes minute by minute. Chang Haonan frowned slightly and stared at the computer screen. In the huge office, there is almost only the faint "click" sound caused by the occasional rotation of the mouse wheel. Anthony Jameson''s paper has a lot of content, but it is not long. In other words, the content is a little jumpy. If you are a reader who has not had much exposure to the finite volume method, you will most likely need to read it several times to understand its meaning. Fortunately, although Chang Haonan is not specialized in this, he actually used COMSOL Multiphysics a lot in his previous life, so he has some understanding of the Swedish company''s "problem-solving ideas". "call-" After about half an hour, Chang Haonan finally put down the mouse in his hand, leaned back on the chair and exhaled a breath. Apparently he has finished reading it. However, his frown did not relax. This made Wei Yongming and Song Jingming who were not far away feel a little worried - If Mr. Chang finds it difficult to deal with after reading this, it means that the other party really has something. After a few more minutes, Wei Yongming, who had not dared to disturb him just now, finally couldn''t hold it in any longer - Extending your neck is the same as shrinking your neck. No matter what the conclusion is, don''t be silent... Therefore, after hesitating for a moment, he tentatively expressed his doubts: "Mr. Chang, I think Professor Jameson''s idea is to apply the spectral volume method on an unstructured triangular grid to solve the hyperbolic conservation law. However, I have conducted several calculation tests before, and the spectral volume method is used in calculations. Controlling the surface integral requires a huge number of Gaussian integration points, but will it increase the calculation time? " As the head of the technical department, since Wei Yongming came to see Chang Haonan today, he naturally read this paper in advance. It''s just that some of the content in it doesn''t seem to match the promotion of the other party''s products. "Thesis...it''s just a purely theoretical process." Chang Haonan replied: From theoretical derivation to specific algorithm implementation, the details in between are the key to software design. "For example, my paper introducing the conservation level set method was published in a journal, but others did not have the matching grid generation and dimensionality reduction technology for high-order partial differential equations. Even if they understand the content of the paper, , and there is no way to apply it to the software. "As for Jameson''s method, it should only draw on the idea of ????the spectral volume method. It does not directly apply the spectral volume method to unstructured grids." "Although the paper does not involve the subsequent application level, I speculate that they will choose to use the node function value of the spectral unit instead of the volume average to construct the discrete format. In this way, the LevelSet function value of the control volume boundary can use high The linear combination of first-order Lagrangian polynomial interpolation and second-order upwind interpolation is estimated, and the total degrees of freedom and the number of Gaussian integration points will be reduced accordingly. This method is also in line with what COMSOL is good at..." Facing the paper on the computer screen, Chang Haonan quickly deduced the specific technical route of the other party''s algorithm through reverse thinking. Wei Yongming, who was sitting on the sofa, took out a small notebook at some point and was taking notes with his head down. "Of course, this is just my speculation from a theoretical level and may not be 100% accurate..." Looking at Wei Yongming who was writing vigorously, Chang Haonan finally did not say anything and left himself a way out. But this sentence obviously had no impact. The movements of the former''s hands even became faster. Song Jingming next to him may have received too much content that he didn''t understand at all. At this time, he felt that his brain was a little bloated, so he took advantage of Wei Yongming''s lack of time to raise his head and quickly changed the topic from technology to management: "Then Mr. Chang, under the current situation, do we need to change the original planned update route?" "Such as... uh... using some newer technologies to deal with it, and so on." In his opinion, since Chang Haonan just showed a solemn expression, it obviously meant that the other party had indeed put enough pressure on him. Of course, this is not entirely Song Jingming''s own idea, but a conclusion he reached after discussing with Wei Yongming next to him before this trip - In the field of CFD, Torch Group actually has some unused technical reserves. Mainly focused on high-precision method level. It''s just because of the development cycle that it can''t keep up with the original update schedule. At present, if we want to continue to maintain Torch Group''s advantages in numerical calculations, especially in the field of computational fluid dynamics, we must delay updates to introduce these more promising technologies. However, Chang Haonan did not nod immediately. The update to version 2.0 of the TORCH Multiphysics software was something he started to prepare more than half a year ago, involving major improvements in three aspects: multiphase flow, topology optimization and CFD. It can be said that we are only one step away from the launch of the new version. If you rashly disrupt your rhythm because of the other party''s actions, you will become passive. In fact, in the final analysis, it is still caused by backward data transmission methods. In 2001, the main means of updating large-volume commercial software was still to physically mail storage media such as CDs or hard drives. This means that users cannot accept too high an update frequency. It also means that vicious bugs are completely unacceptable. Because the cycle and cost of fixing bugs are unacceptably high. Therefore, the software testing cycle these days is generally relatively long to ensure that no big troubles occur. And if, like more than 20 years later, the software can be upgraded online at any time, then you can push a 2.0.5 Beta version first, and then push the official 2.1 version after the new technology stabilizes. Even if there are some bugs in the first version, they can be quickly corrected. Moreover, there is an even more important point. That paper. Although Chang Haonan understood it and even guessed the opponent''s general technical route. But there were still some details that concerned him. That''s right, he had been frowning just now. In fact, he was not worried about the threat caused by friendly businessmen to the Torch Group, but was thinking about these issues. It was just misunderstood by the two people opposite me... After struggling alone for a few minutes, Chang Haonan raised his head again and answered decisively: "Updated plan, unchanged!" "No... unchanged?" This decision was obviously beyond the expectations of the two people on the sofa. "right." Chang Haonan nodded, then stood up and came to the window, looking at the city in the distance: "On the one hand, we cannot be led by others. Even if the new version of COMSOL Multiphysics can achieve the effects they advertise in the CFD field, we still have advantages in multiphase flow and structural topology optimization, so users cannot be like this Give up our software." "So, the worst-case scenario is that a considerable number of users start to use our two software programs separately for different problems. This result is not completely unacceptable to us." Having said this, he paused for a moment, then turned around and gestured in the direction of the computer screen: On the other hand, this paper only mentions the discretization method using the lattice-centered finite volume method for the N-S equation, but in actual operations, there are not many high calculation weight issues that are common when numerically solving viscoelastic constitutive equations. discuss." For this type of problem, the LCR method that is currently being studied most is to convert the original stress tensor evolution equation into an evolution equation in the logarithmic form of the conformation tensor matrix. This process requires the calculation of the stress tensor and the conformation tensor. Repeated conversion of the matrix logarithmic form of a quantity can easily cause loss of accuracy. If the calculation weight is too large, it may even cause the algorithm to crash. " "Of course, it''s impossible for a consultant from a commercial company to write down all the technical details when publishing a paper, but it''s still too strange not to mention it at all..." Chang Haonan said and touched his chin. Although this sentence was obviously not finished yet, Wei Yongming was already a little unable to hold on: "Mr. Chang, our group probably hasn''t researched the finite volume method as a key technology, right?" "You...know so clearly?" "Oh, obviously we can''t talk about it." Chang Haonan waved his hand and replied with an indifferent expression: "When Torch Group was not officially established, I read some relevant information in order to choose a technical route for the new software, but I didn''t expect it would be useful at this time." "Anyway... they said they will push out the update later this month. It only takes two weeks. Let''s keep the same to cope with the changes. After their new version is released, we will see what is sold in Hululi. What medicine (End of chapter) Chapter 932 No, is it really a steal? Chapter 932 Isnt it? Its really a steal? Although there are still some things that they dont understand, now that Chang Haonan, as the general manager, has made a decision, what will Wei Yongming and Song Jingming do next. Naturally, the original plan will be implemented. After sending the two people away, the former sat back at his desk and stared at the third chapter of the paper on the screen for a long time In fact, so far, the computational divergence problem caused by high computational weights has not been solved, and there is not even a widely recognized cause. Chang Haonan only realized the existence of this problem through extensive practice in previous years. But when he was summarizing the problem to the second point, a light suddenly flashed in his mind. The development of the stress field is mainly affected by the convection terms and deformation terms, and evolves rapidly in the form of exponential growth. However, the traditional numerical discretization format based on polynomial interpolation cannot accurately capture the change law of this exponential growth, which makes the constitutive equation The contributions of the convection term and the deformation term to the stress evolution cannot be balanced, resulting in calculation divergence. Therefore, theoretically speaking, as long as the exponential growth rate of stress is slowed down in the area of ??large stress gradient change during the solution process of the finite volume method, the stability of the numerical calculation can be guaranteed. So, after another quarter of an hour of brainstorming, Chang Haonan stood up suddenly. The headquarters of the Aerospace Power Group is a relatively simple administrative agency and does not have research functions. Therefore, even if you have an idea, you can''t get results just by sitting in front of the computer in the office. He first picked up the phone and contacted Zhu Yadan who was waiting on the first floor. Then he changed clothes and went downstairs, preparing to take the car to the new location of the Torch Laboratory that had been completed. There is a supercomputer there that is better than the Beijing Airlines Computing Center, which is enough for Chang Haonan to test whether the idea he just had is correct. In fact, this work was almost entirely out of Chang Haonan''s interests. Due to the different theoretical principles and technical routes adopted by TORCMultiphysics software, it does not face the problem of high calculation weights. However, as a scholar who studies numerical calculations and regards solving N-S equation problems as a long-term goal, Chang Haonan is not particularly utilitarian in his research in this field. After all, many seemingly earth-shattering results only originated from a seemingly useless curiosity. After arriving at the laboratory, he dived into the computing center located underground in Building 2... In the computer room, Wang Jie and Qin Haiyang were immersed in front of the computer, optimizing the design of the engine nacelle for the Falcon Z project. At this time, there was a sudden noise at the door. The two of them raised their heads and saw their mentor hurriedly pushing in the door. "?" Seeing the sudden appearance of Chang Haonan, Qin Haiyang, who was not very familiar with the situation of the research team, naturally thought that he was coming to inspect the work. So, he stood up directly, took out a work log from his schoolbag, sat upright, and prepared to report on the progress of his work. But Wang Jie, who has been studying for a Ph.D. in Torch Lab for one year, knows very well that Chang Haonan basically does not engage in such formalistic work inspections. Many tutors are keen on this because they often ask students to do research areas that they do not know much about. Only through regular reports can they keep track of the progress of the project. And here Although the business scope of Torch Laboratory is wider than that of most research groups, every research direction must be familiar to the teachers themselves. Chang Haonan, in particular, basically only needs to take a look at the calculation program and calculation results, and simply ask a few questions to determine the current situation of the project with great accuracy. Wang Jie already had a deep understanding of this when he was in Shanghai. Therefore, he first patted Tan Haiyang''s shoulder to signal the latter to relax. At the same time, he took two steps forward and briefly explained the work they were currently doing. Chang Haonan had no intention of checking his work, and Wang Jie''s work efficiency and attitude were very reassuring, so he simply nodded and sat in front of another computer terminal next to the computer room, preparing to conduct his own research. . However, while waiting for the computer to turn on, he accidentally glanced at the screen next to him. "Eh?" It doesn''t matter if you don''t look at it, this look really attracted his attention: "Are you... doing a flow field simulation of the engine nacelle?" Logically speaking, the current optimization of the aircraft''s aerodynamic shape is not so detailed that it requires digging into design details such as the engine nacelle. Therefore, this work should be a relatively simple structural optimization problem. But it is obvious that Wang Jie and Qin Haiyang are not satisfied with this. "That''s right." Wang Jie scratched his head and replied: "We have carefully looked at the overall design plan of the Falcon Z project during this period and found that no matter how we optimize the structure of the engine nacelle, especially the weight, it will have minimal impact on the performance of the entire aircraft." Chang Haonan said in his heart that it was indeed insignificant, otherwise I would not dare to bring it over to practice with you two... Of course, he couldn''t say this out loud, so on the surface he still looked like he was listening carefully. "So, we were thinking about whether we could make some optimizations in other places besides the structure." "Like aerodynamic resistance?" Chang Haonan looked at the nacelle model that had completed high-precision meshing, and he already had a higher evaluation of Wang Jie in his heart. However, the latter shook his head: "I did think about starting from the drag reduction level at the beginning. However, the tail-mounted engine layout has inherent disadvantages in terms of drag. The optimization range is really not large, and it still does not have a significant impact on the performance of the entire machine. help." "So in the end, we decided to learn from your previous ideas and use the calculation form of flow field combined with sound field to optimize the noise level of the cabin, especially the rear part of the cabin, by improving the internal structure of the engine nacelle." It has to be said that although Wang Jie is only in the second year of his Ph.D., he is indeed capable of taking charge of his own work. Its not just a matter of ability, but also subjective initiative. Just at this time, the computer in front of Chang Haonan had also entered the supercomputing system, so he stopped asking for other details and devoted himself wholeheartedly to his work... The week passed quickly. Chang Haonan''s research can be regarded as the first clues. He has found a constitutive equation that does not involve diffusion terms, and based on it has achieved convergence processing for convection terms and deformation terms. It can be said that there is only one step left to solve the problem that is not faced by Torch Group. But Chang Haonan''s doubts did not ease. On the contrary, it became thicker. You know, he used many special methods in solving this problem. For example, from a calculation log whose results are divergent, use a data dimensionality reduction algorithm to extract useful data, and then iterate based on this to optimize the form of the constitutive equation. As far as theoretical research is concerned, this is naked heresy and violent cheating. It is almost equivalent to doing the multiple-choice geometry questions in the college entrance examination. Others are deriving step by step, but you directly use the ruler to measure. However! It is not that Chang Haonan is biased against Professor Anthony Jameson. But besides him, there is probably no other person in the world who can master this method. Then here comes the problem. How did COMSOL solve this problem? Could it be that Professor Jameson thought of some calculation method that was so clever that even Chang Haonan himself didn''t discover it? Or is it that the former is simply lucky and achieves the same effect as high-order data dimensionality reduction through blind guessing? It doesnt seem very reasonable But I can''t think of any other possibilities. In short, Chang Haonan is increasingly looking forward to the day when the new version of COMSOL Multiphysics will be officially released. However, plans cannot keep up with changes. Before a friend''s new product was released, something unexpected happened, interrupting Chang Haonan''s work schedule... The trouble came from the Hudong Factory. One Friday afternoon when it was raining heavily, Lei Zhixing suddenly took the train from Shanghai to Beijing overnight. "Mr. Chang, there is an emergency." Lei Zhixing took off his wet poncho and placed it outside the door, then shook off the water drops on his body before walking into Chang Haonan''s office. While talking, the former placed a sealed file bag on his desk. Different from the seal they affixed themselves last time, this time the seal had a large seal, indicating that it contained serious factory documents. While Chang Haonan was opening the package, Lei Zhixing briefly introduced the situation: "After Samsung Offshore took away our order for eight LNG ships, it moved very quickly. The specific technical plan was finalized not long ago." "Then, we obtained the design drafts used by Koreans to bid through public channels." When he said this, Chang Haonan had already taken out the contents of the file bag. It''s a design drawing. Or strictly speaking, a design proposal. However, a large amount of the content has been blacked out, leaving only the design drawings relatively complete. But that''s enough. Because almost at a glance, Chang Haonan saw a set of structures around the cargo tank that he was very familiar with... "I go" He was so shocked that his eyes almost popped out: "Isn''t this our BOG reliquefaction system?" "You really dare to steal?" (End of chapter) Chapter 933 Xiao Han, you can’t control the water depth of the LNG ship. Chapter 933 Xiao Han, you cant control the water depth of the LNG ship... "Mr. Chang, do you need to ask the comrades from the legal department to handle it?" Looking at Chang Haonan with an uncertain expression on his face, Lei Zhixing asked tentatively. Of course, as a purely scientific research institution, Torch Laboratory does not have a legal department. But Torch Group has In fact, long before the official release of TORCH Multiphysics, in order to adapt to the intellectual property and computer software-related regulations of other countries, Chang Haonan entrusted Teacher Yang Huimei to set up a legal department with a broad business scope. Over the years, the reason why the Torch Group''s products and services have been able to flow unimpeded in many countries is that it has never encountered any case worth writing about. Apart from its own strength, Chang Haonan and some small local tycoons. In addition to good relationships with influential companies, rigorous, detailed and timely updated user manuals also play a very important role. However, that''s why. Compared with its hard-working counterparts in other companies, Torch Group''s legal department is still slightly lacking in experience in practical operations, that is, in litigation. "Well" Chang Haonan hesitated for a moment, but nodded in an instant: "I''ll contact Professor Yang and Director Song and hold a meeting between various departments of the group..." "good!" Lei Zhixing showed a relieved expression: "They should be taught a lesson by stealing our patents so blatantly!" You know, in this round of the overall game on the technical route of the second-generation membrane LNG ship, even if it is not a matter of life and death, there is a high probability that the party that wins in the end will be the winner-take-all, while the loser will have to wait for at least the next 10-15 years. It is difficult for anyone to raise their head again in this field, and they can only survive on scraps. Originally, the Hudong plant, which had lost the opportunity, had made strategic plans to give up the past ten years. However, at the most critical moment, it was revitalized by the BOG re-liquefaction patent developed by Chang Haonan. At least it saw victory. possible. But if Samsung Offshore also uses the same level of reliquefaction technology, China will have no chance of winning by relying on the inherent lightweight advantage of the Technigaz cargo tank. Therefore, for Lei Zhixing, who has been working on this project for two years, this is tantamount to being laughed at. Being able to maintain rationality without being red-tempered is already considered a mild-tempered person. However, seeing the other party''s excited reaction, Chang Haonan just touched his nose in embarrassment: "Well" "Actually, Zhixing, the actual situation may be a little different from what you think..." Lei Zhixing''s expression suddenly froze: "Mr. Chang, what do you mean..." "never mind." Chang Haonan waved his hand: "You''ll find out during the meeting tomorrow." His thoughts cannot be clearly explained in a few sentences. Moreover, Lei Zhixing was in a state of anger right now, so it was not suitable for him to talk about too in-depth topics. Therefore, after getting started, Chang Haonan decided not to waste words for the time being and wait until the meeting to discuss it together... The Torch Group itself is actually not very large, so it won''t take long to convene a meeting of middle- and high-level leaders. Chang Haonan made a call, and the next morning, except for Wei Yongming, who was not directly related to the matter and couldn''t leave, all the other department heads sat in the conference room. As usual, Song Jingming made a simple opening statement and briefly introduced the current situation. At this time, not only Lei Zhixing, but also most of the participants felt angry and funny. The reasons for being angry are naturally similar to the former. And laugh... This kind of blatant theft of technology is simply food for the legal department... Suddenly, the atmosphere in the conference room became lively. In the end, it was Chang Haonan who stretched out his hand and pressed it down to calm down the already somewhat off-topic debate. However, its not like there arent calmer people. After the conference room became quiet again, Kang Kaicai, director of the External Relations Department in charge of external cooperation, asked: "Mr. Chang, although I don''t quite trust the character of Samsung Offshore Engineering, the other party''s experience in international commercial law and transnational patent rights is much richer than ours. Even if we consider it purely from a rational perspective, it is unlikely that the other party will expose it. Its only right to give us such a big loophole. "So, will there be anything behind this..." At this time, China has only joined the WTO for a year, so domestic companies will show some inexperience when dealing with international trade disputes. Many times, we even accept the loss and accept the defeat. This naturally includes the Torch Group. It can be said that except for members of the legal affairs and external relations departments, everyone else still has a partial understanding of these contents. Chang Haonan is holding this meeting today. In addition to deploying his own plan, he is also taking this opportunity to train everyone''s troops. So, he nodded, agreeing with Kang Kai''s view, and then turned to the head of the legal department and an expert in international commercial law, Dr. Hou Shunda: "Director Hou, please explain the situation in detail." "good." Hou Shunda opened the folder in front of him unhurriedly: "Although I understand the emotions of all comrades, as a legal officer, I still have to pour some cold water on everyone to cool down." "Last night, we compared the previously registered patent description document with the design document disclosed by Samsung Offshore Engineering, and finally confirmed..." At this point, he paused slightly: "It was finally confirmed that the other party has basically circumvented our group''s patent on the BOG reliquefaction system. Although there are some marginal areas, if a lawsuit is filed on this basis, I''m afraid it will last a long time..." "What?!" Lei Zhixing, who was full of expectations, immediately sat up straight. He had only known that Chang Haonan had registered a patent for the BOG reliquefaction system, but as a technician, he had not actually read the relevant legal documents sentence by sentence. It''s naturally a little hard to accept now. "calm." Chang Haonan didn''t change his expression, just stretched out his finger and tapped the table lightly. In fact, he knew this would be the case when he saw the design document for the first time yesterday. And the reason why he was extremely shocked at that time was also due to another reason. "In fact, the liquefaction process of the BOG reliquefaction system itself, whether it is cascade type, refrigerant type, or expander type, is a fairly mature technology in the chemical industry." Facing a group of subordinates with different reactions, Chang Haonan slowly opened his mouth and explained: "Their core patents have been registered as early as last century, or even last century, and now the protection period has expired. No one can re-apply for a patent based on these contents." Of course, we can register patents for some bits and pieces of peripheral technologies to obtain certain protection. However, this registration method is very easy to be bypassed, especially for an experienced player like Samsung Offshore Engineering, so it makes sense. Not big either. "So, when I submitted the patent application, I changed my mind and registered a large number of patents focused on the adaptation between the reliquefaction system and the cargo tank, as well as the reliability design of the entire ship." At that time, I felt that as everyone was professional in shipbuilding, they should be able to see that this system would have an impact on the hull structure itself, so no matter what path our competitors took in liquefaction technology, they would eventually have to come to us to solve safety issues. " "I never expected that someone would be so bold as to risk his life. He would change the design we made to ensure safety beyond recognition, and then he wouldn''t even test it, and just draw it directly on the design plan..." Chang Haonan said helplessly, holding his forehead with one hand and shaking his head. The core technical principles of this BOG reliquefaction system were basically developed by him alone. No matter the Hudong Factory, Lei Zhixing and Liu Fangping, they can only understand the specific design plan at present. That''s why there was this oolong. In fact, from the perspective of hindsight, he did underestimate the Korean people''s urine. In the previous life, South Korea did similar things when it developed its own KUH1 "Perfect Eagle" helicopter (actually a copy of the Super Puma). Because I did not go through detailed arguments, I just thought about it and then blindly changed the propeller hub. As a result, the main rotor of a helicopter directly separated from the fuselage during flight and flew away... Thinking about it this way, the things in front of me seem to have a trace of rationality in the absurdity... For a moment, the expressions of other people in the conference room were very exciting. "so" Lei Zhixing, who was so excited that he almost banged the table, inevitably felt a little embarrassed: "Actually, we don''t need to worry about this matter at all?" "That''s not the case." Chang Haonan waved his hand: "After all, the other party still made some marginal moves, and the design plan obviously borrowed a lot from us. Even if the lawsuit cannot reach a final result, it can allow the comrades in the legal department to practice their skills, and by the way, help us Torch Group and Hudong Factory to Wave publicity. "I''m thinking now, should I take the initiative to remind Samsung Offshore Engineering that there are a lot of risks behind this technology, and if you mess around with it, something could easily happen..." At this time, even Kang Kai and Hou Shunda were a little confused: "Mr. Chang, is this... unnecessary?" "Yeah, if we don''t add fuel to the flames from behind, it would be a big favor for them..." "If there is a problem with Samsung Offshore''s LNG ship, wouldn''t that be a huge benefit to us?" All kinds of doubts arise one after another. In fact, Chang Haonan was a little hard to make a decision at this time. "On the surface, it is indeed what you said." He frowned slightly and rubbed the acupuncture points on both sides of the bridge of his nose: "But these beasts like Samsung Offshore...these guys are so courageous. If those LNG ships are put into use, I can''t even estimate how much trouble there will be..." In fact, if this is a normal transaction, Party A will also conduct relevant testing before receiving the goods, and there is a high probability that unqualified products can be kept out. But the problem is that this wave of Xizhuer is to deceive and sneak attacks. The Norwegians simply don''t wait for delivery and start their classic operation. In the end, these eight LNG ships will definitely be sold as second-hand ships to an unknown buyer. As for this type of transaction, its hard to say how standardized it is. "What if Samsung Offshore inherits the glorious tradition of the Japanese and controls the risk within a very precise range, resulting in no detection during the testing process, but a big problem occurs after it is put into use...for example, it explodes, then for The entire LNG transportation industry is probably a major blow. "Ordinary people don''t care whether the cargo tank you use is Gas-Transport or Technigaz, nor do they care whether your ship is made by Samsung Offshore Engineering or Hudong-Zhonghua. If it really explodes, I''m afraid the major ports will be affected the next day. We have to refuse LNG ships to dock... This is also a big risk for us. "in addition." Chang Haonan picked up the tea cup and took a sip of water, then continued to add: "Although it sounds outrageous, in the eyes of many foreigners, several countries in East Asia are actually tied together..." "Japanese companies only made a big splash a few years ago. If Korean companies start to blow up soon, it may not be a good thing for our image..." This explanation made the other people''s expressions become solemn again. "Isn''t this a pure and innocent disaster..." Kang Kai complained vently. But complaints are complaints. As the head of the external relations department, he knew that what Chang Haonan said did exist. In 2001, China''s own influence was still at a relatively low level. Indeed, it has not yet gotten rid of the shackles of the classification "East Asia". "Then...is it possible that we still have to rush to wipe their butts?" Lei Zhixing also found it a bit difficult to accept. "Of course that''s impossible...we''re not doing charity." Chang Haonan decisively denied it. For a time, everyone fell into the same tangle as him. No matter what choice you make, there are pros and cons. And with so many variables, its difficult to choose the lesser of two evils. After a few minutes, Chang Haonan finally decided to cut the knot quickly: "never mind." He took a deep breath: "Litigation with Samsung Offshore Engineering is actually a wake-up call for them." "If the other side insists on being stubborn, then we are not their parents. There is no need to wait behind them. We can just cut them in advance to reduce the impact on us as much as possible..." "The meeting is over!" (End of chapter) Chapter 934 You are quite a nice person! Chapter 934 You are quite a nice person! Now that the countermeasures have been determined, the next main tasks belong to the Legal Department and the Propaganda Department. For this incident, the lawsuit itself is actually more important than the outcome of the lawsuit. Therefore, Chang Haonan never set "winning the lawsuit" as his core goal from the beginning. Instead, try your best to expand your influence. In this way, no matter what the outcome is, the whole world, or at least peers around the world, will know that this BOG reliquefaction system was grafted indiscriminately by Koreans without core technology. Even if something happens, it has nothing to do with our Torch Group. Stay away, don''t touch my blood.jpg Under the guidance of this kind of thinking, the preparation work before litigation becomes less important. The right thing to do is to file a lawsuit quickly. Therefore, compared with conventional intellectual property cases that often require months or even years to collect evidence, this time, the Legal Department moved frighteningly quickly. In less than a week, Torch Group was ready to file an intellectual property lawsuit against Samsung Offshore Engineering, requiring it to stop using the BOG reliquefaction system patent that has been registered by the former on eight LNG ships currently and to be built. . In fact, this efficiency can be achieved thanks to the Norwegian party who ordered the ship. They specifically require in the contract that Party B needs to publicly display the ship design and construction information. The original intention of doing this is probably to facilitate your subsequent operations. But objectively speaking, it did allow the Torch Group to master first-hand evidence with almost no effort... At the same time, publicity efforts also began to continue. For several days, different Chinese media reported on Torch Groups lawsuit against Samsung Offshore from different angles Although the Torch Group is relatively unknown, it is still a subsidiary of a state-owned enterprise directly under the Aviation Power Group, so it definitely lacks resources in this area. However, the development of the situation quickly exceeded Chang Haonan''s expectations. In the beginning, he actually just contacted a few print media and planned to publish a few reports or commentator articles in secondary positions other than the front page. But by chance, one of the reports was noticed by the leader of the trade department. At this point in time in 2001, it was actually very subtle. In the past, when China did business with foreign companies, the various steps in between were quite troublesome. Even in many cases, the people who actually face foreign companies may not be businessmen, but officials from the Ministry of Foreign Trade and Economic Cooperation. Although this is a bit less efficient, the situation is basically out of control. But now, the authority at the enterprise level has been greatly enhanced. Although foreign trade still requires licenses and approvals, most of the time, it is direct head-to-head between domestic companies and foreign companies. It is not difficult to imagine that the number of disputes arising from this in the past year has been several orders of magnitude greater than in the past. However, after all, China has only joined the WTO for one year. The vast majority of companies have no experience in handling such disputes and can only be beaten passively. I dont even know where I am getting the loss. Faced with this situation, the Ministry of Foreign Economic and Trade Cooperation is relatively helpless. On the one hand, due to relevant WTO regulations, it is inconvenient for them to directly intervene in corporate-level affairs. On the other hand, faced with such a huge number of problems, it is impossible to have enough manpower to deal with them one by one. Therefore, the country now urgently needs a model to set an example for other enterprises. Did you see it? If you encounter trouble in the future, just do it this way. Therefore, driven by various forces, relevant reports on the Torch Group''s indictment have already appeared on Xinwen Network before it was formally submitted. Although it was only mentioned in the news section. There''s not even a picture. But after all, that is also a sentence in Xinwen Network. Therefore, it quickly aroused greater response and attention. For the melon-eating masses, the impact of market opening is at its peak, and the filters brought by foreign companies and brands are extremely strong. In this context, "Chinese companies sue foreign companies for infringement of intellectual property rights", which itself is eye-catching enough. For the majority of business colleagues, they really need a benchmark to learn from and refer to when they are confused. In short, it wasnt until Song Jingming sent an interview invitation from CCTV to Chang Haonans desk that he realized belatedly This historic prosecution by myself or the Torch Group has quietly become the biggest topic in the Chinese business community in the past two days... In fact, being in the news is no longer unfamiliar to him. After receiving the May 4th Youth Medal and after that historic flood fighting and disaster relief operation, he was interviewed by CCTV. But strictly speaking, those two times can only be regarded as part of a series of reports. The interview material is also comprehensive news that has been edited and spliced ??together with other scenes. But this time, it was a serious one-on-one interview. The kind that serves as a dish on its own. Of course, superficial skills still have to be done. If the topic of Torch Group v. Samsung Offshore was discussed from beginning to end, it would be too obviously offensive. Therefore, the official news theme is still about the development process of Torch Group from scratch, from weak to strong. The part related to the case will probably only occupy about three-quarters of the space. Also due to the nature of the program, this interview was not conducted at Chang Haonan''s office as in the past. But in a studio of CCTV. When Chang Haonan arrived at the interview location at the agreed time, he was greeted by another more important person besides the person in charge of the news center. "Comrade Haonan, thank you very much for supporting our work." The visitor warmly shook hands with Chang Haonan who had just got off the car. "Director Long, you''re welcome..." After a brief shock, Chang Haonan quickly responded: "Whether it is your work or our work, in the final analysis, the purpose is the same..." Long Yongtu is the chief representative of the Ministry of Foreign Trade and Economic Cooperation responsible for China''s WTO negotiations and a member of the leadership team. Chang Haonan and the other party had met several times. Of course, even if not, this name that will appear in textbooks in the future is enough to be heard. At this moment, since China''s WTO accession process has officially ended, Long Yongtu has no choice but to take a break. But anyone with a little foresight can guess that his future guarantee will be the second-in-command of the Ministry of Foreign Trade and Economic Cooperation. After some simple greetings, the three people walked into the CCTV headquarters building under the leadership of the staff. "Tell the truth, Director Long." While waiting for the interview to start in the lounge, Chang Haonan said to Long Yongtu: "You guys gave me a big surprise." "Before I received today''s interview invitation, I didn''t know that your Ministry of Foreign Economic and Trade Cooperation had paid attention to this matter." Originally, this sentence was just a casual chat to kill time, but Long Yongtu sighed seriously: "well" "After joining the WTO, we discovered that in international trade, there are far more disputes than cooperation." "You may not believe it, but in the past year or so, your Torch Group has been the first company in mainland China to take the initiative and choose to use legal procedures to resolve trade disputes." "So no matter what the result is, we have to put this example up..." Chang Haonan actually knew this. In the previous life, it was not until 2006 that the first Chinese company sued a foreign company for intellectual property infringement. This shows how backward Chinas awareness is in this regard. On the other side, after a brief pause, Long Yongtu continued: "Originally, the ministry was prepared to publicize it according to the standards of the ''first WTO case'', but you specifically emphasized it yesterday, saying that the purpose of this lawsuit is not to win, and there is a high probability that there will be no clear result in the end, so we just We held an emergency meeting and decided to lower the tone a little..." After Chang Haonan heard this, he called him a good guy in his heart. He was a little bit muttered just now, saying why the standards of today''s interview were so high, and even the Ministry of Foreign Trade and Economic Cooperation specially sent a member of the leadership team to accompany him... Long Yongtu originally wanted to continue saying something, but at this time, the person in charge of the news center opened the door and said that the interview was ready and could begin. Although it is a face-to-face interview with special specifications, the format is not much different from the past. It''s just that the host has been changed. In the opening part, Chang Haonan first briefly reviewed the brief but glorious development history of Torch Group, and then, under the guidance of the host, introduced the two main businesses of Yiban Group. That is, TORC Multiphysics software, and numerical calculation business that can provide finished solutions. The second part that follows immediately begins to enter the theme of todays interview. "I noticed the content of the lawsuit filed by Torch Group. It is believed that Samsung Offshore Group has infringed on your patent on the BOG reliquefaction system. Can you please briefly introduce this technology to us?" "You just mentioned LNG ships. In this field, what is the current development status at home and abroad?" "In other words, your company''s patented technology will have a decisive impact on the development direction of the LNG transportation field, is that true?" As an interview for the public, of course the host cannot just ask what he wants to know, but must first lay the groundwork and ask some basic questions for the people in front of the TV. After having a general understanding of the background knowledge, it is easy to get into the core topics: "Before today''s interview, I specifically reviewed the litigation documents submitted by your company to the domestic and EU courts. I wonder what your expectations are for the next lawsuit? Will you win completely and let the other party stop the infringement, or will you prepare Settlement out of court and collect royalties? It can be seen that the host has definitely done his homework. In his opinion, Chang Haonan had made it clear yesterday that winning this lawsuit was not the purpose, so that would definitely be the latter answer. Therefore, as long as Chang Haonan gives an answer, he can express his appreciation and then naturally bring up a series of topics that have been prepared. However, faced with this problem, Chang Haonan hesitated: "Uh...not really." There was a trace of confusion in the eyes of the host opposite. Chang Haonan''s completely unreasonable answer made him feel that his career seemed to be being challenged. However, before he could think of the next question, Chang Haonan spoke again: Our original intention in filing this lawsuit is actually to save the LNG transportation industry. At this time, not only the host, but also Long Yongtu, who had been sitting outside the camera, was shocked, and he immediately made a tactical retreat. Savethe LNG shipping industry? The host is still trying to bring the topic back on track. "That''s right." Chang Haonan nodded: "Samsung Offshore not only illegally used our intellectual property BOG reliquefaction system, but also completely failed to understand the content of our patents." "If the ship is built according to their plan, the sealing of the cargo tank and the strength of the hull may be affected. Once filled with liquefied natural gas, it will become a bomb floating on the sea, which may cause gas leakage at any time. Leakage, hull cracking... or even a direct explosion." The reason why we chose to go through the legal process with such high-profile is that economic considerations are only secondary factors. The key is to hope that Samsung Offshore can learn from this and avoid inestimable threats to international shipping safety, energy security and the global environment... " "So, from this perspective, Samsung Offshore should actually be grateful to us for this prosecution, which gave them an opportunity to step back from the brink and turn around." This high-sounding statement shocked everyone in the studio. The host who faced Chang Haonan couldn''t help but take a deep breath. If the camera hadn''t been on, he would probably have spoken out what was in his heart at this moment - "Mr. Chang, you are quite a nice person..." (End of chapter) Chapter 935 assist from norwegian Chapter 935 The Norwegians assist ?Although we experienced some bumps along the way, fortunately it was not a live broadcast, so this interview ended normally. When the on-site director shouted cut for the last time, the host realized that his entire back was soaked... And Long Yongtu, who had been watching from the side, unknowingly had several soaked wads of toilet paper on hand... "My superiors specially sent me here this time. I was originally worried that you were inexperienced and might be out of shape or nervous during a long interview." Long Yongtu looked at Chang Haonan, who was in high spirits and seemed to be in high spirits, and shook his head helplessly: "Now it seems that I was completely over-worrying..." "The key to running a business is integrity." Chang Haonan answered while sorting out the information he brought over but did not use. "So, I always say whatever I have." Hearing these words, Long Yongtu''s expression almost stopped. He said in his heart that I believe you are the only one who is evil. In the end, he bit the tip of his tongue hard to hold back his laughter, so he quickly changed the topic: "I will be the host tonight. On behalf of our Ministry of Foreign Economic and Trade Cooperation, I would like to thank you, Comrade Haonan..." On the other side, Director He Gang from the news center also came to the host who was almost slumped on the sofa: "Xiaokang, you performed well today. You responded... very promptly." Even if it is not a live broadcast, if you cut off too many times during the interview, the final effect of the film will be greatly compromised. More importantly, it is impossible to ask the interviewees to cooperate with you for re-recording indefinitely. Therefore, it is better to do it once if you can do it again. And his ability to stabilize the situation in such a chaotic situation clearly shows that his business level is quite excellent. The host wiped the sweat on his forehead with the back of his hand: "I feel like today is a disaster for my hosting career..." "It''s not that it''s not that..." He Gang quickly gave his subordinates psychological training. In the past two years, a lot of well-known CCTV hosts have gone overseas to work alone, and manpower is already tight. If a capable host loses his mentality because of one program, the loss will be huge. "Director He." At this time, Chang Haonan''s voice suddenly came from not far behind. "Mr. Chang." The two stood up quickly. "I hope that the part in the middle about the purpose of the prosecution can be completely preserved when it is broadcast." Today''s interview lasted about 45 minutes in total, but when the program was broadcast, excluding the opening credits and advertisements, there was only about 35 minutes of actual content. Therefore, some unimportant parts must be cut out from it. But Chang Haonan''s statement was intended to make big news, so naturally it couldn''t be deleted casually. "this" He Gang was suddenly sweating profusely. He suddenly felt that today might also be a disaster in his career. If someone else were to be the interviewee, then at the level of CCTV, it would be cut. However, as a subject who has been personally interviewed by the Ministry of Foreign Trade and Economic Cooperation, Chang Haonans stance is quite weighty. "Mr. Chang, the production and broadcast of this program need to be decided by superiors. At the news center level... we can''t make this decision directly..." But how could Chang Haonan let the other party deal with it casually: "This matter is very important, so... please go and ask for permission now." In short, Chang Haonan''s request was finally met. A few days later, CCTV broadcast the entire interview on Sunday evening. Only a few small issues at the beginning and towards the end were cut out due to time reasons, while all the key parts were retained. It was also on the same day that Torch Group formally submitted the relevant evidence previously collected to two courts in Brussels and Beijing. The combination of the two directly ignited the topic. Originally, the shipbuilding industry, especially the civilian shipbuilding industry, was not very eye-catching in the world. However, Chang Haonan''s interview was too essential. Especially the section "I''m suing you for your own good" would become a famous meme in the future Internet era. More importantly, Chang Haonan was not talking about getting high. After the program was broadcast, Torch Group published a lengthy open letter in Chinese, English and French, explaining from a technical level why the BOG reliquefaction system cannot be directly grafted into the Technigaz cargo tank. of LNG on board. At the end of the open letter, Chang Haonan also added a special paragraph, saying that Samsung Offshore''s behavior is not only an infringement of the interests of Torch Group, but also irresponsible to the entire industry and all mankind. If you continue to insist on going your own way, don''t say anything. This is also true for unexpected events. After so much trouble, this matter has been widely spread all over the world, especially in China and EU countries - At the beginning of the 21st century, environmental issues have basically become a part of political correctness in Europe. The Torch Group has been emphasizing terms such as "environmental pollution" and "climate disaster" on various occasions, and with the help of some "media public relations expenses", it is naturally easy to spread. Anyway, the purpose of cutting in advance has definitely been achieved. Nowadays, people who eat melon may not even know what LNG is, but they know that a Chinese company has issued a danger warning... To be fair, Chang Haonan has done what he has done now, and he has done his best. In particular, the open letter, with the permission of the Hudong factory, even disclosed a small part of the technical details of the BOG reliquefaction system to explain why this system must be used with the relatively conservative Gas-Transport cargo tank. Logically speaking, even if Koreans are more courageous, facing such fierce public opinion, they should at least stop and check. After all, if the ship really explodes, they will be the ones who suffer the worst fate. But at this most critical juncture, something unexpected happened... Inside the managers office of Geoje Shipyard. Yin Zhongxian was looking at the meeting minutes on the table in front of him with a burning head. "Axi..." In less than 10 days, LNG ships, an unpopular industry that had never been heard of before, almost became the hottest topic on the streets. At first, Samsung Offshore was suddenly sued by Torch Group. In fact, this incident did not surprise him, and it was nothing worth paying attention to. As the main finalist of the LNG design plan, Yin Zhongxian is very sure that his technical team has avoided all sensitive points in the other party''s patent. The remaining marginal ones can easily be dealt with by concealing the truth. But before he could laugh at his opponent''s incompetent rage, the next combo followed. For a time, almost the whole world was filled with reports that the LNG ships in their shipyards might explode. The lethality of this kind of thing is still relatively large. Even Samsung Offshore''s stock price has been affected. Ordinarily, Samsung can actually sue Torch Group for maliciously spreading rumors and even manipulating the stock market. but You know your own affairs well. Most people think that Chang Haonan''s words "Samsung Offshore Engineering has not fully understood the contents of our patents" were meant to mock. However, Yin Zhongxian feels a little guilty about this... "Manager Yin." Looking at Yin Zhongxian who was bowing his head and keeping silent, An Zhenze, the vice president of Samsung Offshore Engineering sitting opposite him, frowned: "Can your technical department ensure the safety of these ships?" Yin Zhongxian opened his mouth. He wanted to answer truthfully and said that I originally thought I could, but now I''m a little unsure... But if this sentence is spoken, it obviously means that the career will go directly to the grave. Moreover, it is impossible for him to have a place in the entire Korean offshore industry...or even the entire world''s offshore industry. Therefore, Yin Zhongxian finally nodded and said in as firm a tone as possible: "Can." For a moment, the office fell into an eerie silence. Of course, Yin Zhongxian is not a fool. He knew very well that if something happened to these ships, it would not only be his career that would go to the grave. Therefore, after a moment of silence, Yin Zhongxian directly pushed 256: "But President An, I think the key now is the Norwegian side. If they feel there is a risk, we should respect Party A''s opinion anyway..." In his opinion, the rumors outside have spread as they are now, and Party A, no matter how determined it is, should not be able to sit still. As long as the Norwegian feels that it is not possible, whether he asks to cancel the order or to change the technical solution, he can save the situation without sticking the pan completely. In fact, this idea cannot be said to be wrong. If you are a normal Party A, you must consider stopping the project at this time and make long-term plans. But the problem is... This time Party A is not normal. The focus of the Norwegians is not on these ships at all. Or rather, they were the happiest after learning that these ships might have fatal flaws. They came here for liquidated damages from the beginning. This time, there is no need to even use small tricks. Then, Yin Zhongxian heard the answer that made his heart and lungs stop: "I''ve already asked about this." "Party A means to fully believe in all our decisions and does not need to ask for their opinions, as long as the ship can be delivered on time." An Zhenze crossed his legs and stared sharply at Yin Zhongxian: "So, Manager Yin." "Let me confirm with you one last time, can we guarantee the safety of these ships?" (End of chapter) Chapter 936 Take risks! Chapter 936 Taking risks! Yin Zhongxian suddenly felt like crying. He couldn''t understand why those **** Norwegians were so generous and trusted him so much at this time. But in short, the pot that he had just smoothly thrown away was now bounced back smoothly. Right now, there were two paths clearly before him: One, he was recruited from the real situation and then ended his career on the spot. Then the mortgage payment was cut off, his wife divorced, and he had to pay alimony for his ex-wife and children for the rest of his life in poverty. It''s probably only a matter of time before I jump into the Han River. Second, continue to hide it. This way you can temporarily save your job. But if these ships are indeed what the Torch Group said, there are major safety risks... In a few years, I wont even have to worry about jumping into the Han River Because someone will just put him in a sack and throw him down... "There are two roads in front of me, one is a dead end, and the other is also a dead end." Yin Zhongxian. However, considering that An Zhenze was pressing closely in front of him at this moment, Yin Zhongxian knew that he had to choose no matter what. And you have to choose quickly "Can." Yin Zhongxian still nodded firmly and gave the same answer as before. Not sure whether it was to convince the other party or to convince himself, he even added:: "The Torch Group issued such an open letter just because we took advantage of the patent loopholes and became angry." "As long as we insist that the property rights they claim have not been infringed, no court will be able to do anything to us." Obviously, what just seemed like an either/or choice. But it''s not at all. Choose one and you''ll end up dead. Choose the second option, and at least there will be a buffer. After all, Samsung Offshore Engineering is not entirely a grassroots team. After obtaining the design plan from China, Yin Zhongxian also presided over simulation calculations and pilot tests. According to the results at that time, the sealing performance and strength margin were no problem. Therefore, the possibility of Torch Groups bluff cannot be ruled out... "good!" After An Zhenze, who was opposite him, heard his answer, his originally gloomy expression turned into a smile in an instant: "Then just follow what you said, Manager Yin, and continue the construction!" Looking at the corners of the other party''s raised lips, Yin Zhongxian''s heart sank. He instantly felt like he was being calculated... A question also emerged in his mind - The An Zhenze in front of him is the vice president of Samsung Offshore Engineering with a background as a technician. Even though I have been away from front-line business for nearly twenty years. but Do you really know nothing about the actual situation at hand? Of course, this kind of question must not be asked out loud. Therefore, after sending An Zhenze away, Yin Zhongxian locked the office door at the speed of light, and then took out a mobile phone from the bottom drawer of his desk. He turned on the phone as quickly as possible and then called up the address book. There is only one number and no contact name. Looking at the string of numbers on the screen, Yin Zhongxian hesitated with his fingers on the keyboard for a long time. Finally, he gritted his teeth and pressed the dial button From cooperating with GTT insiders to steal the technical solutions of the Hudong plant to the decision to add a BOG reliquefaction system, such a series of big moves cannot be made by a small shipyard manager named Yin Zhongxian. Naturally, there were senior officials behind him who instructed him to do this. But now, he needs to find the other party for help. The ringback tone lasted for more than ten seconds. It wasn''t until Yin Zhongxian felt a little guilty that the call was finally answered. "Hello, Manager Song, I am the manager of Geoje Shipyard, Yin Zhongxian." Although there was no one in the office, he still lowered his voice subconsciously. "Manager Yin?" After hearing his name, the other party was obviously stunned for a moment: "Didn''t I say before, don''t contact me casually?" "Yes, yes...I know." Yin Zhongxian quickly replied: "But haven''t there been incidents outside recently...haven''t there been a lot of rumors?" "So I would like to ask you whether our project will continue as usual or..." On the other end of the phone was Song Minyong, one of the executive directors of Samsung Offshore Engineering. He secretly instructed Yin Zhongxian to steal and "borrow" the BOG reliquefaction system design plan from the beginning. Now that it is possible that the incident will come to light, the latter will naturally want to ask about the attitude of the boss behind the scenes. More importantly, it is to test the intentions of the group''s senior management. If even Song Minyong thinks the risk is too great, then Yin Zhongxian will have to consider some special solutions. For example, the fire dragon burns the warehouse and so on. Although he is inevitably jointly and severally liable as a shipyard manager, as long as personnel are evacuated in time, a simple production safety accident is better than one or even several LNG ships exploding. "Why are you asking me this suddenly?" Song Minyong did not directly respond to Yin Zhongxian''s most concerned question, but suddenly asked: "Did other company executives put pressure on you?" Yin Zhongxian subconsciously wanted to tell what happened when An Zhenze came over just now. But when the words came to his lips, he swallowed them back. The intense uneasiness just now enveloped my heart again. Although An Zhenze''s rank is higher than that of Song Minyong, normally speaking, when the vice president takes people to the shipyard to inspect the status of key projects, it is impossible for the executive director in charge of this to not know at all... Obviously, whether Song Minyong really doesn''t know or pretends not to know, it is not a good tendency. Therefore, almost in the blink of an eye, Yin Zhongxian changed his answer: "No...that''s not the case. It''s just that many foreign media are reporting on the technical risks of our ships. I''m a little...worried about Party A''s reaction." "Party A has not changed any decision because of these rumors." This news about Song Minyong is comparable to An Zhenze just now. But what the former said next made Yin Zhongxian have to think more: "Besides, haven''t you already done simulation calculations and pilot testing before finalizing the design plan? Is there anything to worry about?" The meaning of this sentence is a bit subtle. On the surface, there seems to be nothing wrong with it. But if you think about it from another angle. Both processes, including the final design plan, are all signed by Yin Zhongxian''s name. Now Song Minyong refuses to give any direct guarantee, but suddenly emphasizes the simulation and pilot test process. It is difficult to guarantee that he does not mean to pass the blame. Combined with the fact that the other party didn''t even know Vice President An Zhenze''s schedule today... Yin Zhongxian suddenly felt that he seemed to be involved in some kind of game between high-level officials. As for these problematic LNG ships... Although there was a high probability that it was something other than the original plan, considering that the situation had been rumored for so many days, the senior management of the group came to pay attention to the matter. Could it be that they have reached a compromise internally? Thinking of this, Yin Zhongxian suddenly broke into a cold sweat behind his back. If this kind of plot is true, then he will undoubtedly be treated as an outcast. "What Executive Song said is...I am also worried, so I specially confirmed with you..." Yin Zhongxian maintained his previous tone calmly, and hung up the phone after a few words. In this situation, it is doomed to have no future if you go to Song Minyong to make trouble. Previous communications between the two parties were conducted in private, and there is no documentary or recording evidence to prove that the other party instigated him... Under pressure, Yin Zhongxian''s mind became clearer. After rejecting one solution after another, he suddenly had a bold idea. Outrageous, but not entirely unfeasible. He took a deep breath and pulled his office chair back in front of the computer. Immediately afterwards, he typed the website address of Torch Group in the address bar as quickly as possible. In the past few months, in order to collect information about the other party, he had already learned this by heart. However, this time, Yin Zhongxian was not trying to find any useful clues from it. "You are unkind, so don''t blame me for being unjust..." I saw him muttering as he tore off a piece of note paper from the side, and then copied several contact numbers in the corners of the home page. Then, he turned off the computer, got up and left the office quickly. (End of chapter) Chapter 937 Drinking makes people timid Chapter 937 Drunk and cowardly About two hours later. Yin Zhongxian was wearing an inconspicuous semi-old windbreaker and appeared in front of a convenience store on the other side of the city on a bicycle. According to the plan just now, he should go in now, buy a bearer phone card with a short-term contract, and then immediately make calls to the numbers he had written down before. However, at this last moment, he hesitated a little - On the one hand, this is an absolute crime. Although it seems a bit strange to consider these things under the current circumstances, as a scholar who has lived by the rules for half his life, Yoon Jong-hyun is actually used to being pushed forward by others in work and life. He didn''t think it was anything when he got emotional before, but now that he calmed down, he still found it quite difficult to make such a "deviant" decision himself. And, even putting aside the inner struggle, there is another, more practical problem. Once this step is taken, there is no turning back. If the deal is made rashly, the other party can make a verbal guarantee first, and then just throw him aside to die after getting the thing. Many spy-themed novels and movies are written this way. Will the Chinese do the same? Moreover, the phone numbers he copied from the website were all responsible for external liaison business. I called him rashly and said I have what you want... Others may not believe it... Yin Zhongxian parked his bicycle on the side of the road, put his hand in his pocket, and gently twisted the note. After hesitating for a moment, he gritted his teeth and walked into the convenience store as planned. The owner of the store is a semi-bald man about 50 years old. He is leaning on a worn-out wooden chair with his legs crossed and concentrating on watching TV. I didn''t even notice the customers entering the store. Of course, this would be a weekday afternoon, so there would be very few people visiting. Yin Zhongxian did not immediately remind the other party, but came to the counter in silence. Stacks of phone cards were **** with rubber bands and neatly stacked in paper boxes. "Buy...don''t buy...buy...don''t buy..." Two voices lingered in Yin Zhongxian''s mind, making it difficult for him to make a final decision. "Eh?" At the same time, the boss finally realized that there was someone standing next to him and quickly stood up to greet the guests: "Sorry, I was so absorbed in watching TV that I didn''t notice you, our guest." "What do you want to buy?" As he spoke, he walked across to Yin Zhongxian, opened the glass door behind the counter, and prepared to get something for the latter. "I" I don''t know if it was because of dry mouth or hesitation, but in short, Yin Zhongxian just opened his mouth to say a word, and his voice got stuck in his throat. "AhemI want to buy a bottle of water..." At the most critical moment, he retreated almost instinctively. "Oh...what brand do you want?" When Yin Zhongxian said he was just buying a bottle of water, the boss felt a little discouraged. Compared with these fancy electronic gadgets on the counter, the profit from a bottle of water is simply negligible. "Nongshim... Nongshim is healed." The shop owner turned around and went to get him some water. Yin Zhongxian was also a little annoyed at his own weakness. He knew that if he walked out of here in despair today, he might not be able to even "walk into a convenience store" in the future. Just when Yin Zhongxian''s mind was like a blur, a voice that sounded familiar to him came from the TV next to him. "The Geoje Shipyard, a subsidiary of our group, is still building these eight LNG ships as planned. Any rumors that the Norwegian company is considering replacing Party B are false news..." Yin Zhongxian turned around suddenly and looked at the small TV set on the shelf next to him. It was a press conference. A press conference held by Samsung Offshore Engineering. The person sitting in front of the camera and chatting was none other than the executive director he had just contacted, Song Minyong. "Here, your water." The shop owner put a bottle of mineral water on the counter: "500 yuan." But Yin Zhongxian didn''t seem to hear it. He neither took water nor paid for it, but just stared at the side blankly. "You are also following this news, right?" The store owner had a good temper and thought that the customer in front of him was a melon-eater like himself, so he immediately started chatting: "If you ask me, these Chinese people really overestimate their capabilities. Our shipbuilding in South Korea is expected to surpass Japan next year and become the world''s number one. What technology do they have that is worth stealing for us to use?" Geoje City is one of the top shipbuilding industry cities in South Korea and even in the world. Therefore, it has become one of the regions with the highest per capita income in South Korea. As a local who has reaped enough dividends, the shop owner naturally has extremely strong recognition and confidence in the country''s shipbuilding industry. However, when hearing this sentence in Yin Zhongxian''s ears, it didn''t feel right at all. Outsiders don''t know the twists and turns, but he knows it clearly. "Hey, young man." Seeing that Yin Zhongxian didn''t answer, the store owner continued to show off his chatty nature: "I see that your tanned skin...doesn''t it mean you also work in a shipyard?" This sentence frightened Yin Zhongxian so much that he was immediately shocked. "Oh...no, I build a house, project manager." While the two of them were chatting, the press conference on TV had already entered the next round of questions and answers. This time, the reporter had obviously prepared in advance. He used the structural fracture accident of the bulk carrier that occurred last year as an example and asked Samsung Offshore how to ensure the safety of the ship. "The bulk carrier you are talking about should be the Leader L built by Mitsubishi Shipyard in 1977." "I would like to ask this reporter to note that there are very obvious differences between the construction standards of bulk carriers and LNG ships, as well as shipbuilding technology in the 1970s and this century, and such comparisons cannot be made directly, not to mention, that ship The boat is still made in Japan. Song Minyong is by no means a fool. When faced with this kind of question, he still answered fluently, and he also stepped on another competitor by the way: "In short, everyone can rest assured that the so-called BOG reliquefaction system infringement and safety risks are completely slandered by competitors. They lost to us in fair competition, so they used this method..." "In addition, the technologies used on these eight ships have been rigorously tested and certified by Geoje Shipyard. The relevant reports and all construction processes also have detailed review documents to ensure that there will be no problems that cannot be fulfilled..." Hearing this, the convenience store owner nodded with satisfaction: "Look, I''ll just tell you." "Our shipyard is still responsible..." However, Yin Zhongxian next to him had his eyelids twitching, and he almost opened his mouth to criticize Song Minyong, an old dog, at the TV. Implement responsibilities It can indeed be implemented. It''s all in my head, right? For a moment, the courage and impulse that had just been suppressed by cowardice resurfaced. Anger arises from the heart, evil comes from the courage. "That''s right, boss." He almost squeezed out these two words from between his teeth: "Give me another short-term bearer phone card...and a small bottle of sake." Upon hearing this request, the convenience store owner suddenly smiled and quickly lowered his head and pulled out a phone card from a pile: "A 7,500-yuan ticket contains 5,000 phone credits. It cannot be recharged when used up...counting sake and water...a total of 10,000 yuan." Obviously, the profits here are quite generous, and there should be a lot of room for bargaining. But Yin Zhongxian no longer cared about that much and paid directly without saying anything. The shop owner took a few banknotes and checked them carefully at the window. The smile on his face became brighter. Then he took down a wine bottle and a disposable plastic cup from the shelf next to him: "Young man, stop looking so grim and come and have a drink..." As the saying goes, drinking makes you brave. Yin Zhongxian did not ask for the shop owner''s cup, but directly blew a bottle of sake into the mouth of the bottle. Then, under the influence of alcohol, he found a secluded place and made the phone call that would affect the rest of his life... (End of chapter) Chapter 938 Long-time spy? (4K) Chapter 938 Long-term spy? (4K) Later in the day. Song Jingming almost ran all the way into Chang Haonan''s office. Chang Haonan, who had just sat in the office and was looking at the documents, raised his head and looked at the office director with a confused expression as if he had seen a ghost. "Old Song?" He glanced at the schedule next to him and confirmed that the other party had not made an appointment to meet with him today Chang Haonan himself didn''t care about these red tapes, but Song Jingming followed the rules every time and always called before coming over. This time it seemed a bit abrupt. "Mr. Chang, I''m sorry...this matter is too urgent. I didn''t get through when I called you just now, so I came directly." Song Jingming said and put the things he was carrying in front of Chang Haonan. The latter took a closer look and discovered that it was a tape recorder. "this" "Just now, an international number starting with 82 called us." Song Jingming explained: "The other party said that he was a technician from Samsung Offshore Geoje Shipyard, and he had enough evidence to prove that they directly copied part of our design plan during the design and construction of those LNG ships." "ah?" Upon hearing this somewhat outrageous news, Chang Haonan''s first reaction was... Don''t quite believe it. "Can you confirm the other party''s identity?" he asked, frowning. This kind of thing feels outrageous no matter how you hear it. Song Jingming''s phone number is publicly listed on the group''s website, and anyone can see it by clicking on it. And recently, news related to the Torch Group has spread all over the world. There''s no guarantee that someone isn''t playing a prank. Song Jingming did not answer, but directly pressed the play button on the radio. An English with a strange accent came from inside. The content of the first call was similar to Song Jingming''s summary, which was that he had the evidence that the Torch Group needed most. If they wanted it, they would find someone who could walk the talk and contact him on time at 8pm the next day. However, the call did not end immediately. The customer service staff at Huaxia also realized that the situation was serious, so they asked their colleagues to call Song Jingming. The latter asked customer service to continue to stabilize the other party, and then used this time to find relevant personnel from the technical department. Then, there was the following conversation... "Sir, in order to prove that what you just said is true, we would like to ask you a few questions. Don''t worry, money and other resources are not a problem for us. As long as we can prove that your information is valuable, the rest will be Easy to say. "go ahead." The person on the other end of the phone answered very simply, and Chang Haonan even heard a bit of venting pleasure from it. "Do you know who those LNG ships at Geoje Shipyard were built for?" "Of course I know, it''s Norway''s Hordaland Offshore Oil and Gas Equipment Company." "Then the cargo tank technology of these ships is..." "The cargo tank uses the Technigaz technology of the French GTT company. Compared with the Gas-Transport solution selected by the Hudong Shipyard... Strictly speaking, it was the Gas-Transport solution that we gave up that reduced the use of a layer of invar steel plates, so the volume of the cargo tank , weight and cost have great advantages. "Originally, we thought that we should be able to unify the LNG ship market for at least the next 10 years. However, your Torch Group came out and built a BOG re-liquefaction system that can recover almost 100% of the leaked natural gas. In terms of usage costs, it has suddenly reached a new level. Back to the advantage Speaking of technology, the other party''s answer was very smooth, and he also mentioned many details about the competition between Samsung and Hudong. "hiss" Listening to this explosive recording, Chang Haonan immediately backed away tactically. Obviously, someone who knows so many things cannot be some boring kid who just does pranks. At least the identity of the other person is definitely no problem, he is definitely an insider of Samsung Offshore Engineering. but "Old Song, you said..." Chang Haonan raised his hand to stop the recorder, and then motioned for the other party to sit across from him: "Isn''t this a little too coincidental?" We can''t blame Chang Haonan for being suspicious and seriously ill. They had just filed a lawsuit that they had no intention of winning, and evidence that could play a big role was sent to them without any warning. This is too smooth sailing. "Actually... I felt suspicious at first." Song Jingming took a chair from the side and sat down, then said: "But I thought for a long time on the way here. Even if this is a hole dug by Samsung Offshore Engineering for us, what are they planning?" "If this lawsuit continues, there is a high probability that it will continue to be disputed and finally settled. The possibility of us winning is very slim. It can''t be for money, right?" For news like this, the maximum transaction price will not exceed US$1 million. This is of course a huge sum of money for an individual, but no one, whether Samsung Offshore or Torch Group, takes $1 million seriously. And, more importantly. If the other party really just wants money, then you can withdraw the amount today. "Then...what do you mean?" Chang Haonan looked at Song Jingming opposite. "Soldiers will block you, water will block you, and water will cover you. Such a good opportunity cannot be let go in vain." The latter looked eager to try: "Since the other party asked us to contact him tomorrow night, let''s see what kind of medicine he sells in his gourd!" "It''s just Mr. Chang, since we have to negotiate terms, and 80% of the terms are not just money, then you have to draw a range first. We can''t just agree to whatever he says..." "call-" Chang Haonan took a deep breath, then played with the ballpoint pen in his hand and pondered for a moment: "In this case, you still make the call." He reached out and knocked on the table for emphasis: "But I''ll go to your place tomorrow and listen to what this guy has to say!" Originally, Chang Haonan thought that this would be an extreme game of wits and courage against a professional spy. To this end, he even entrusted Fu Youquan to help, and hired a psychologist and an interrogation expert from the Second Department of the General Staff Department to provide some basic training to Song Jingming, and to stay by the phone throughout the process to advise the latter. In the end, everyone decided that they could not let go of the child without trapping the wolf, so they started with a more detailed technical information to exaggerate the seriousness of the situation. Since this part is completely true, if the identity of the "shipyard technician" is true, his mentality should be somewhat shaken. Even if this person is really a bait set by Samsung Offshore Engineering, he can at least scare the other party. No loss whatsoever. After that, listen to what specific conditions the other party wants and how they want to proceed with the transaction. If possible, try to trick the other party into sending over part of the evidence in hand to verify the authenticity. Finally, decide whether to trade with the other party and what kind of chips to pay. In short, it takes a few rounds. According to the experience of the two comrades from the Second Department of the General Staff, if the other party is really a technician who becomes a spy for the first time, his mentality will be very fragile. Whether it is too procrastinating or agreeing too quickly and decisively, it may cause the other party to be rebellious or suspicious, causing the deal to fall through. Therefore, after this round of process, about 7-10 days is most suitable. All in all, everything was ready within 24 hours. At 8 p.m. the next day, several people, plus a lot of monitoring equipment, crowded the already narrow phone room. Song Jingming took a deep breath, then picked up the receiver and dialed the other party''s number. "Hi, hello, I am the head of the business department of Torch Group..." Song Jingming didn''t speak directly to the other party yesterday, so it was a new voice, and he could pretend to be any identity. So, everything went well. After exchanging pleasantries with the other party, Song Jingming began to strengthen the other party according to the technical documents prepared by Chang Haonan. However, the situation soon went beyond Chang Haonan''s...or rather, beyond everyone''s expectations. Before Song Jingming could finish the first step, the opponent''s mentality had already collapsed. In fact, this is not difficult to understand. All the entanglements, hesitations, and hesitations that Yin Zhongxian had before were ultimately because he still had a sense of luck. The risks that Chinese people talk about may not really exist. But today, the technical document that Song Jingming read out dispelled all his illusions Just like if you make a mistake on a question in the exam room, you will suddenly wake up when you get home with the answer. Yin Zhongxian finally realized what his problem was. Technigaz cargo tanks have limited pressure regulation capabilities. This is not a problem during normal transportation. However, after the BOG reliquefaction system is installed, the cargo tank is indirectly connected to the ship''s power system. Since the LNG flow direction cannot be controlled through rapid pressure change, the heat distribution of the entire ship will be slowly changed. Short-distance transportation is fine, but long-distance transportation is hard to guarantee what will happen... So, he revealed his identity almost in tears, and said that he was now desperate, and that as long as it could help him escape this disaster, he would do anything. The situation''s rapid decline stunned everyone present. Song Jingming tentatively asked Yin Zhongxian to send part of the evidence in his hand to prove that what the latter said was true. As a result, the latter agreed with the speed of light Didn''t even wait until the next day. That night, an unfamiliar email address sent several photos to the Torch Group''s corporate email. It is the first ten pages of the other party''s LNG ship design document. It''s just that it''s the uncut version. The one with parameters and the whole design process. "Is this thing... considered legal evidence?" Chang Haonan looked at Hou Shunda next to him and asked. In his impression, if it is a criminal or civil lawsuit, evidence obtained through illegal means cannot be used. "If we take it out, we might still have to argue." Hou Shunda replied: "But if Yoon Jong-hyun is allowed to appear in court as a witness, and then he submits this thing to the court, then there will definitely be no problem." "With this kind of evidence, if the lawsuit can still be lost, I will come forward to see you!" "Then Mr. Chang, why don''t we just agree..." Song Jingming was obviously moved: "Although we didn''t really have any intention of winning at first, if we win..." At this point, his words stopped abruptly. "etc" "It seems that even if we win, there will be no benefit to us?" The Norwegians originally came here for liquidated damages. Now that you win the lawsuit, it is equivalent to ruining the order. Wouldnt it help Samsung Offshore Engineering in turn? Moreover, if Party A goes back to the Hudong factory, will you accept the order or not? "So, I have a new idea." Chang Haonan said leisurely: "We actually don''t have to win this lawsuit at all." After everyone else heard this, they were all shocked and acted like they were all ears: "First of all, Manager Yin Zhongxian is afraid now because he feels that Party A really wants to buy the ship, so he is worried that an accident may happen after the ship is delivered and he will be implicated." "But we know the tricks of those Norwegians. They will breach the contract before the ship is built, and then use it to trick the shipyard. Therefore, it is impossible for these ships to be launched in a short time, let alone used." "yes" Song Jingming slapped his thigh: "So this Yin Zhongxian actually doesn''t have anything to worry about!" "But he doesn''t know this yet, and we can take advantage of this time difference." Chang Haonan''s speaking speed increased unconsciously: "First stabilize Yin Zhongxian and tell him that we can prepare a new identity for him and a large amount of money so that he can take his wife and children to start a new life in the ethnic minority areas of our country after the Dongchuang incident." "But what he has in his hands is of no use to us now, so we need to exchange it for other information of sufficient weight before something happens, whether it is related to the Samsung Group, Korean shipbuilding, the Korean Navy, or even the stationed Anything related to South Korea and the US military is fine! "Of course, we won''t take advantage of him in vain. We will provide corresponding cash rewards based on the value of the information." Geoje Shipyard is the largest shipyard in South Korea, and most of the combat ships of the South Korean Navy are built here. Some US military ships will also undergo small-scale repairs or maintenance here. As the manager of Geoje Shipyard, Yoon Jong-hyun has absolutely full intelligence value. If possible, we can even help him continue to climb higher and become a nail in the middle and upper class in Korea. "But...those LNG ships will be completed sooner or later." Song Jingming asked: "No matter who it is delivered to, isn''t it still a huge safety hazard?" "Hey...we don''t have to worry about this." Chang Haonan waved his hands nonchalantly: "As long as those ships enter a long-term shutdown, without the constraints of Party A, as the head of the shipyard, Yin Zhongxian, as long as he is not stupid, will definitely turn those ships into scrap metal that is not suitable for continued construction." "After the demolition is completed, it will be over." "Besides, to put it another way, even if it is really delivered, it will have to be many years later. Then we can get Yin Zhongxian out..." He had heard this routine a lot from Lao Wu. Scrap things that are obviously still usable, buy them at scrap prices, and then resell them as second-hand equipment, earning a huge profit from them. It''s just that Yin Zhongxian is just trying to protect himself. "Also, after the Norwegians take action, won''t we lose Yin Zhongxian''s leverage?" Someone asked again in a low voice. "So let him exchange it for other information!" Chang Haonan replied: "As long as he trades with us once, it is equivalent to receiving a certificate of investment. The future events are not up to him..." (End of chapter) Chapter 939 Did I get the performance of Aegis? Chapter 939 Did I master the performance of Aegis? In short, Chang Haonan is definitely not a good person. Faced with such a favorable situation, we must try to squeeze out the maximum value of Yoon Jong-hyun. But at least he''s still human. Therefore, as long as Yin Zhongxian shows his value, Chang Haonan will not throw away the person after draining him. The promised escape route, that is, money and status, should be prepared when necessary. Moreover, if Yin Zhongxian can pass the LNG ship level and lurk for a long time, then Chang Haonan can also provide some cooperation to help the other party climb to a higher position... Yin Zhongxian stood under a streetlight, and the conditions proposed by the other party were coming from the mobile phone receiver next to his ear. In fact, as he estimated yesterday. Once this thing starts, there is no turning back. The other party already has phone recordings and email messages from the past two days. So, there is no option to refuse at all. Moreover, China has clearly promised that as soon as the first batch of four LNG ships are delivered, a new identity will be given to him and his family. Dont be afraid even if something happens later. However, in less than three days, his identity changed from a shipyard manager to a spy for another country... Yin Zhongxian was still a little at a loss. For Chang Haonan, this is also a quite novel experience. Spy. He had always heard about it. As a result, today, I actually have one in my hand. And the level is ridiculously high. Manager of Geoje Shipyard. Laughing to death. Who dares to believe it? You know, Yin Zhongxian''s position alone can easily solve many troubles. For example, the most basic one is contact information. If he is an ordinary shipyard worker, even if he uses an anonymous phone card and a non-real-name email, he can easily arouse suspicion. But as the boss of the shipyard, Yin Zhongxian has a much higher degree of freedom. Not to mention the phone and the Internet, even if he saves a radio station, as long as he doesn''t be too arrogant, few people will notice anything abnormal. There are also rewards. It is easy for an ordinary worker to see a windfall from heaven. And Yin Zhongxian''s own economic conditions are acceptable, which is a very good cover. Considering that Koreans generally have the habit of excessive consumption, even if he buys some luxury cars and luxury goods, with this layer of identity protection, it will not appear too out of the ordinary. In short, the Holy Body of Innate Spies. Of course, Yin Zhongxian''s position is not just a commercial spy, so this matter still needs to be reported to Fu Youquan. However, he also specifically emphasized that the scope of knowledge must be as small as possible so as not to affect the security of this intelligence line. To this end, the Second Department, under the personal auspices of Luo Yudong, established a four-member "K Team" to cooperate with Chang Haonan to complete the liaison task with Yin Zhongxian. The reason why its called Group K It''s because Yoon Jong-hyun''s codename is: Mr. K. It should be said that the effects of intelligence work are relatively immediate. Especially if your spy is already in a high position. Although Yun Jong-hyun is definitely not as good as the Cambridge Five, regardless of his position or qualifications, he can be said to be a few words in Samsung Offshore Engineering and even the entire Korean shipbuilding industry - There is no right to decide, but there is always the right to know. Therefore, not even a week passed before China received the first piece of information. In fact, Chang Haonan''s decision to develop Yin Zhongxian as an informant was not a very purposeful decision. In other words, there is no specific task that the other party needs to complete. Therefore, when Zhong Hongyu, the leader of the K team, reported the situation to Chang Haonan for the first time, the latter actually did not have high expectations. In his opinion, the most important function of this piece of content is to submit a certificate of name. It doesn''t have to have any real benefit. However, Zhong Hongyu''s first words surprised Chang Haonan: "Mr. Chang, Mr. K sent a destroyer bidding and procurement plan issued by the South Korean Navy." "?" Chang Haonan''s hand holding the tea cup remained still in mid-air. He didn''t expect that the greeting gift given by the other side was actually a piece of military intelligence. However, if this information is useful... That''s really of no use. At this time in 2001, South Koreas destroyer project. It should be KDX3. It was the later King Sejong-class destroyer. Of course Chang Haonan knew this. Arleigh Burke in Zoom One. Looking at this meeting in 2001, it was indeed quite advanced. But there are not many highlights in the design. "Let me take a look." Chang Haonan opened the lid of the cup and took a sip of water. "Boom!" With a muffled sound, a document about ten centimeters thick appeared on the desk. Chang Haonan almost spit out a mouthful of tea. "Wait a minute..." "Isn''t it a bidding plan?" He said as he put the tea cup aside and quickly began to read the contents of the intelligence. Unfortunately, they are all in Korean. Can''t quite understand. But logically speaking, the bidding documents are not specific design information, so there should not be so many. "Speaking of it... we didn''t quite believe it at first." Zhong Hongyu explained: "The Korean destroyer project decided to use the US military''s combat system before the overall design to facilitate joint wartime command with the United States and Japan." "So...in the bidding documents, a considerable part of it is about the Aegis system''s hardware adaptation requirements, as well as...specific performance." For a moment, Chang Haonan felt a little dizzy. This can''t be called a surprise. It''s justice from heaven... "Which version of Aegis?" Chang Haonan''s tone was trembling. Zhong Hongyu didn''t answer, he just pulled out part of the information. Although he doesn''t understand Korean, he can still understand the characters of baseline7.1. Baseline 7.1 "It''s enough... it''s enough..." Chang Haonan leaned back in his chair and murmured to himself. This version of the Aegis system was not installed on the U.S. Navy''s own destroyers for the first time until 2003. This time in 2001, it was just after the development was completed. And its technical documents, although incomplete, have already appeared on his desk. With the intelligence at hand, it may not be possible to develop targeted electronic countermeasures technology. But at least it is enough to understand the upper and lower performance limits of this system, as well as the characteristics of the working mode. This is basically equivalent to pointing out a broad road for the development of China''s new generation of anti-ship weapons. And, it provides a strong reference for the development of combat systems of future Chinese destroyers. You know, the baseline7.1 that Koreans get is a complete version that has not been castrated. Have the ability to control land-attack cruise missiles. By the way, Chang Haonan also understood why, more than 20 years later, the US military was so distrustful of its allies Even if this never happened in a previous life, Americans must have suffered big losses elsewhere... "It''s outrageous..." He shook his head helplessly, but with a slight smile on his lips: "Send it to Mr. Fu." "I''ll keep this thing to **** my hands..." (End of chapter) Chapter 940 No, he was stabbed in the back? Chapter 940: Wasnt it, stabbed in the back? This outrageous operation by Samsung Offshore Engineering actually disrupted Chang Haonan''s originally planned schedule to a certain extent. If potential public opinion risks like this cannot be nipped in the bud in advance, once they ferment, it will be difficult to resolve them. Therefore, throughout late October, he was running around on this matter. As a result, after finally settling this matter, another even more outrageous job was involved. In short, although Chang Haonan had left the follow-up processing of the Aegis baseline 7.1 intelligence directly to Fu Youquan, just properly arranging the handover and liaison with Yin Zhongxian took up a lot of his time. However, the impact of this emergency incident is not entirely negative. At least, Torch Group''s popularity has increased by more than one level than in the past. Taking advantage of this opportunity, Chang Haonan also asked the publicity department to concentrate their efforts to create a wave of momentum for the upcoming 2.0 version of TORCH Multiphysics. Especially in the field of computational fluid dynamics, which is currently the most stressful area - Also due to the delay of Samsung Offshore Engineering, when competitor COMSOL released version 2.5 with huge performance improvements, Chang Haonan did not participate in the comprehensive testing of the software at the first time, and the technical department led by Wei Yongming is now working for Torch Group He was so busy with his own update plan that it was obviously impossible to free up too many people. In the end, we could only focus on the numerical calculation business department that Liu Hongbo was responsible for, and tried to do several projects with the new version of COMSOL Multiphysics, which was a simple way to understand the current development level of our friends. This led to the fact that in the last few days of late September, the entire computational fluid dynamics circle was filled with COMSOL promotions and advertisements almost everywhere. Although Torch Group''s current business volume and the number of reservations for TORC Multiphysics 2.0 have not been significantly affected by this, as a leader in the industry, it certainly cannot remain indifferent to this. When Liu Hongbo and Song Jingming found Chang Haonan together, the latter was in the computer room of the Torch Laboratory, optimizing the image segmentation and target tracking algorithms of the Ocean-1 satellite. In fact, "processing remote sensing data on the satellite side" is a technical issue that needs to be overcome urgently in the third decade of the 21st century. Judging from the current level of aerospace-grade hardware in the early 21st century, it is impossible to complete a very complicated calculation process. Although according to the wishes of the National Space Administration, this time we only need to make some sense and verify the technical feasibility. We can wait a few years for truly functional satellites. But Chang Haonan felt that there was not completely no room for maneuver. Because Haiyang-1 is not an ordinary remote sensing satellite. The core load on it is a marine surveillance system. Since it is ocean "surveillance", it is naturally impossible to watch everything. Instead, stare at something important. Therefore, in an image or a series of images taken by Ocean-1, there are only a few specific target areas that people are really interested in. Therefore, a more realistic way of thinking is actually - The image is separated on the satellite side, and the area where the target may exist is extracted, and then transmitted to the ground for image recognition, positioning, and even understanding. In this way, the space-borne equipment does not need to bear too high computing intensity, but it can greatly reduce the amount of data transmitted from the sky to the ground, as well as the workload of subsequent ground data processing. Kill two birds with one stone. It can not only complete technical verification tasks, but also allow Ocean One to perform some functions. It was originally expected that this work would start in the second half of October, but it was delayed for a while, so the progress was delayed by half a month. Fortunately, Chang Haonan''s schedule is already sufficiently advanced, so it will not affect the launch window of Ocean One. Liu Hongbo and Song Jingming saw that their boss was busy and did not dare to interrupt immediately. Instead, they waited until Chang Haonan looked up from behind the monitor. "Mr. Chang." Song Jingming took two steps forward: "We came here this time for the sake of COMSOL..." He was only halfway through his words when Chang Haonan raised his hand to stop him: "It''s not convenient to talk about this in the computer room. Let''s go up and talk." After finishing speaking, he waited for a few seconds, and after confirming that the test data had been completely imported, he hit the Enter key. Then he took off his lab coat and returned to the office in the main building with his two subordinates. As usual, Chang Haonan still listens to technical issues first. "For this trial, a total of 9 people from our Numerical Computing Business Department were assigned to participate. However, one of them was assigned to an important calculation business midway through the trial, so it was not completed. Including myself, the evaluations of the other 8 people have been Sent to your email." Liu Hongbo has now completely adapted to the feeling of being a subordinate to Chang Haonan, and his title has become CEO Chang as smoothly as silk. Don''t ask, just ask, it smells really good. Chang Haonan also opened the office computer at this time, entered the mailbox skillfully, and immediately saw the email sent by Liu Hongbo. Located in the second position of your inbox. There is a PDF file attached. The size is not large. Even with the Internet speed of 2001, it downloaded quickly. Chang Haonan quickly looked at the computing environment and project introductions mentioned in the eight people''s reports, and frowned slightly: "These tests...are very mild..." What he has always wanted to know most is how the other party will solve the problem of high calculation weight in the calculation process of viscoelastic constitutive equations. Unfortunately it was not covered in these tests. Liu Hongbo also looked embarrassed at this time: "Mr. Chang, our numerical calculation business department is not specialized in testing. We can only use it during the project." First of all, most of the projects we have at hand are entrusted by companies and schools with insufficient level, so the difficulty is not high. "Furthermore, the final calculation result is still responsible to Party A after all, so even if we encounter a more complex or difficult problem, we don''t dare to try it with unfamiliar software..." "Sigh...that''s the truth." Chang Haonan nodded slightly, and then looked at the more detailed evaluation content behind. It must be admitted that for these relatively common CFD processes, COMSOL Multiphysics2.5 has high computational efficiency and accuracy. Especially when computer hardware performance is limited, it can even surpass TORCH Multiphysics in some projects. This is the first time this has happened in the past few years. "Our opponents are also exerting their strength..." Chang Haonan said with emotion. Established developed countries, if you push them hard, they can still come up with something. Seeing that Liu Hongbo had no intention of continuing the topic, Song Jingming took out a printed "Publicity Plan" from his briefcase: "Mr. Chang, the idea of ??the publicity department is that it is difficult to objectively reflect the efficiency of computing software through one or several data, and if we engage in Chunqiu calligraphy, it will be suspected of false propaganda, and in the long run it will damage our own brand. " Therefore, the next promotion in the CFD field should focus on other aspects. For example, compared with competitors whose main users are universities and research institutions, our software is more proven in the commercial field. We can focus on the participation of TORC Multiphysics. And products or projects with great influence. "For example, we have negotiated terms with Ferrari...not the Ferrari that makes machine tools, but the Ferrari that cooperates with us to develop racing cars. We will hold an end-of-season open day in December, and then we will design a car that contains elements of our company. Special racing livery to celebrate their fourth consecutive team championship. In this timeline, Ferrari won the constructors'' championship as early as 1998 and has never given up this honor to anyone since. The Torch Group''s LOGO has been occupying the second most dazzling position on the side of its racing car for the past four years. In addition, Torch Group has also participated in the research and development of racing cars in the past three years to a considerable extent through the Jinling Research Center. All in all, it is indeed an excellent promotional material. Chang Haonan was relatively reassured about the work Song Jingming was handling. Since he was transferred to the Aerospace Power Group, all non-technical daily work of Torch Group Technology has been presided over by the former. In more than two years, there has never been any major trouble. Therefore, Chang Haonan felt a lot more relaxed after seeing this plan. Brand effect is generally a weapon used by European and American companies to suppress Chinese companies. But when it comes to numerical calculations, the situation is exactly the opposite. Torch Group is definitely a golden brand. Chang Haonan rubbed his swollen eyebrows with one hand, and prepared to close the browser page with the other hand. However, at this moment, he suddenly remembered the email that was ranked above Liu Yongbo. According to the rules, that email should have been received a short time ago. So he stopped and clicked into his inbox again. Upon closer inspection, I discovered that the email actually came from Dassault. There are actually a lot of contacts between the two companies, but not many can openly use the email channel. In fact, there is only the Falcon Z business jet project... After clicking on it, sure enough, it was a design optimization report for the Falcon Z business jet. Not something important. In fact, it is something that is sent to all the people in charge for backup. No need to even reply. Therefore, Chang Haonan just scrolled the email page to the bottom and had no intention of downloading the attachment. However, one file in the attachment list piqued his interest. Strictly speaking, it is the extension of this file. . cmph "hiss" Chang Haonan''s eyelids twitched - Since the .mph extension has been occupied by TORCH Multiphysics, the extension of COMSOL''s similar products has to be set to .cmph... in other words. He seems... Got stabbed in the back (End of chapter) Chapter 941 Fighting with the air Chapter 941: Fighting with the air Of course, the idea of ??backstabbing was just Chang Haonan''s inner complaint. If you really want to say it out loud, it would be a bit of a fuss. Although Dassault has cooperated with Torch Group, it is also one of the important users of TORCH Multiphysics software, and even purchased a supercomputer specially launched by Sugon Group. But in the field of numerical calculation, the relationship is only between the manufacturer and the customer. The two parties have not formed any form of business alliance, and the Falcon Z''s cooperative research and development agreement does not specify the form in which engineering documents must be submitted. However, this scenario of "partners abandoning themselves and choosing similar products from friends" is really too NTR. Therefore, Chang Haonan still downloaded the project file. In fact, after a certain minor version, TORCMultiphysics is even compatible with opening and editing cmph files. At most, some exclusive functions of COMSOL Multiphysics will not be available. Soon, a wing that had been divided into grids appeared on Chang Haonan''s computer screen. Moreover, the details are already included. If you zoom in, you can even see the flaperons modeled, as well as the winglets. Strictly speaking, it is a wingtip sail. It should be based on some designs of the Airbus A320. Of course this is normal. Aircraft design, especially civil aircraft design. Useful elements will soon spread from one person to another. "Let me see what you are calculating..." Chang Haonan began to further check some data contained in the project documents In 1997, when the first trial version of TORC Multiphysics was released, the only common and convenient storage media was 3.5-inch floppy disks. In order to avoid the situation where the project file is so large that it needs to be divided into several disks for storage, Chang Haonan separated the editing and running log files from the project file. Later, this became a common practice in almost all numerical calculation software. As a result, now the boomerang is stuck in his head. In the absence of information, it took Chang Haonan about half an hour to figure out what Dassault engineers were studying. Simply put, they should be preparing to design a wing with extremely low drag in the transonic range. Since the low-thrust turbofan modified from the M88 core aircraft is full of power, as long as the resistance of the fuselage, especially the wings, reaches the standard, the aircraft can achieve economical performance at "quasi-sonic speed" of Mach 0.9 or even Mach 0.95. And quiet sailing. This means that compared to competitors currently on the market whose speeds are generally Mach 0.7-0.8, Falcon Z can save about 15% of flight time. It is obviously very attractive to the customer group that business jets are targeting. And it''s also a pretty good publicity stunt. However, it is impossible for the Falcon Z to make its wings into delta wings or swept wings. To achieve excellent near-sonic performance on a generally straight wing, there is no future by optimizing the airfoil alone. The details of the wing surface also need to be paid attention to. This engineering document is calculating the air flow near the airfoil. It sounds similar to the work that Chang Haonan did to optimize the J-8C airfoil. But the level of sophistication is much higher. After all, within the allowable range of the structure, the fighter does not need to consider the noise and jitter caused by airflow. In fact, even considering the structure alone, a straight wing with a large aspect ratio is much more complicated than a delta wing. Therefore, judging from the content presented in this engineering document, Dassault engineers appear to be still in relatively early stages of research. When switching to COMSOL Multiphysics, there is a high probability that it is because of the high computational efficiency advertised by it. Otherwise, there is a high probability that this airfoil will not be able to keep up with the Falcon Z schedule. Of course, a passenger aircraft has a relatively simple structure. Many models (such as the MA-60 of that year) even provide wings of different designs to customers as options. But it would definitely be better if it could be made standard as a starter. but Looking at the wing modeling on the screen, Chang Haonan gently raised his chin with one hand. "There seems to be...some problems with this calculation result?" Before this incident happened at Samsung Offshore Engineering, Chang Haonan had been studying the solution to the problem of high calculation weight when solving the viscoelastic constitutive equation using the finite volume method out of interest. In fact, he has found a constitutive equation that does not involve diffusion terms, but he has not yet found a specific solution. In that process, Chang Haonan used a large number of existing calculation examples at hand to provide "learning materials" for the high-order data dimensionality reduction process. Therefore, although he himself cannot give numerical calculation results accurate to a certain number of digits like a computer, he still has some intuition about the characteristics, or trends, of the results. But the several sets of results calculated by Dassault were not in line with his intuition. "Professor Liu." Chang Haonan raised his head and looked at Liu Hongbo, who was sitting on the sofa and had drank an unknown number of cups of tea. "Um?" The latter was bored at this time and was wondering whether to take the initiative to leave, when he heard his boss''s voice: "Mr. Chang, please tell me." "You have version 2.5 of COMSOL Multiphysics, right?" Chang Haonan asked. "some." Liu Hongbo answered with some confusion. "That''s good." Chang Haonan said, returning his gaze to the screen, and then forwarded the email from Dassault to Liu Hongbo''s mailbox: "I sent you an email with a COMSOL Multiphysics project file in it. When you go back, open it with their latest version of the software. Don''t change anything. Just start the calculation from scratch." Although Liu Hongbo still didn''t know what Chang Haonan wanted to do, he still nodded: "Okay, I''ll send you the results as soon as possible." However, Chang Haonan shook his head directly: "No...turns out I don''t need to." "When the time comes, you can extract the log of this calculation process and send it to my email." Liu Hongbo''s movements were quite fast. Less than two days later, Chang Haonan received the log file he sent. txt format. COMSOLM Multiphysics was released independently several years earlier than in history, so many software-level details are not good. For example, typically, logs are stored directly in txt format. Of course, for a **** person like Chang Haonan who checks logs with naked eyes, this is indeed a lot more convenient. And the results of the inspection... It also confirmed his guess two days ago. "It''s really fucked..." Chang Haonan leaned back in his chair and laughed and cursed to himself - Since nearly two months ago, he began to think about how COMSOL would solve the high computational weight problem of viscoelastic constitutive equations. And the result is Not solved at all... It can be seen from the log that the calculation process is to directly solve the N-S equation numerically using the grid-centered FVM discretization method according to the general method. However, situations with these characteristics are indeed quite extreme and are not actually common. In particular, COMSOLs past regular customers were generally schools and small and medium-sized enterprises with limited strength and financial resources. Even less common. Most of the new customers who started trying to use COMSOL Multiphysics after version 2.5 have not yet fully adapted to it. Just like Dassault, they have already started using it to start projects, but they are still in a state of exploration. I don''t even know if there is a problem with the results. So, so far, the Swedes should not have received relevant feedback. In other words, they probably didnt know or thought about the problem from beginning to end... And Chang Haonan... He has been battling with the air. Thinking of this, he shook his head with a wry smile, then opened a Word document and prepared to write a memo to inform Dassault of the situation. After all, Falcon Z is a joint development project. If something goes wrong in a big job like the wing, it will inevitably affect the progress of the entire project. By the way, we can legitimately let them use the computing tools of the past. Thanks to the fact that the finite volume method is not bound, TORCMultiphysics does not need to face the problem of high calculation weight when calculating the viscoelastic constitutive equation. The price is that it consumes more computing resources. But no matter what, it''s better than figuring out the problem in the end. As for the competitor COMSOL... Chang Haonan already had a rather "evil" idea. (End of chapter) Chapter 942 Crush your opponents in what they do bes Chapter 942: Crush your opponents in the areas they are best at Chang Haonan''s idea did not come up just now. When preparing for the first issue of JCAS, Chang Haonan planned to wait for the release of TORCH Multiphysics 2.0 and start a numerical algorithm and computational science conference for the whole world while the iron is hot. The plan at that time was to put these two things together until the end of the year. But later, the development plan for the new version of the software changed - simply put, the release date will be early next year, so the preparations for this conference have not yet begun. A blessing in disguise, though. This instead means that the content of the meeting may be significantly modified. Thinking of this, Chang Haonan quickly called Song Jingming: "Old Song, do you still remember the Numerical Algorithm and Computational Science Conference I mentioned before?" After being connected, Chang Haonan got straight to the point and asked Song Jingming directly. "Of course I remember." Song Jingming on the other end of the phone was busy communicating with Wei Yongming about the details of the new version of the software promotion. He immediately stopped what he was doing when he heard this question. When his boss suddenly asked about work, he naturally subconsciously thought he was dissatisfied with the progress, so he quickly explained: "However, this meeting is scheduled to be held in March next year, so formal preparations have not started yet. I just asked two comrades in the office to pay attention to how other meetings of similar nature are held as a reference, and plan to start again at the end of the year. Make a formal planning plan. However, Chang Haonan obviously did not mean this: "It''s a good thing it didn''t start." He replied: "I am considering whether our company can sponsor a numerical computing competition for universities around the world before each conference on numerical algorithms and computing science. This competition is limited to students, and we can consider including undergraduates and graduate students. Separately, the winners can be given some bonuses, and then an award ceremony will be held at the conference later. "Given the current influence of our company, there should be quite a few experts and well-known large companies attending this conference, so for students, this is a good opportunity to show their faces, whether they are preparing for work or continuing their studies in the future. , it should be very attractive. "You mean... something like the International Olympics?" Song Jingming was not a technician, and he had never participated in these competitive activities when he was a student, so he directly matched the most famous one. "No... uh... it could be..." This thing that had not yet been written in Chinese characters was directly brought up to compete with the International Olympiad, and it was directly treated by Chang Haonan, which made Chang Haonan feel a little less confident: "It can be similar in form, but we still shouldn''t make this kind of analogy casually, especially in public... Random comparisons are only harmful to publicity." For enterprises, the purpose of holding competitions and holding academic conferences is similar. Academic exchange is only secondary, the focus is still on promoting oneself. It''s just that the two target different objects. Although there are also students attending the academic conference, the leading role must still be played by the big guys. Therefore, Chang Haonan just said that participants in the computing competition will be limited to students. Not even the instructor can take care of it. "All right" Song Jingming did not continue to struggle with his lack of concepts: "In this case, in addition to increasing the visibility of our company, perhaps we can also directly identify TORCH Multiphysics as the official designated software of the competition, so that participants can intuitively feel the performance advantages of our software?" "No." Chang Haonan decisively rejected Song Jingming''s proposal: "Since the competition is already named and sponsored by our company, if we have to specify even the competition tools, it will only make others think that we are excluding dissidents, and I am afraid that the results have already been predetermined." "Furthermore, numerical calculation tools cannot be learned in three or two days. If a certain school or a certain research group is already accustomed to using other software, and we limit the competition tools, then they may not learn it from the beginning. I wont sign up to participate, which makes it more difficult to promote the competition. "So, why don''t we just let go of this aspect completely, just let the demons dance, and let the results speak for themselves in the end. If there is a really powerful person, they don''t need any tools, just write the calculation program from scratch, and finally win everyone else. Then we will be even happier! Hearing this, Wei Yongming, who had been sitting opposite Song Jingming, couldn''t help rolling his eyes - Write a program from scratch, and then use the tools we developed over several years. Who are you looking down on? If this really happens, I''m afraid I''ll have to ask Mr. Chang to participate in the competition yourself... However, Song Jingming, who answered the phone, immediately understood what Chang Haonan meant and asked immediately: "Mr. Chang, regarding the topic of the competition...for the sake of safety, for this first competition, would you consider setting an area that is more beneficial to us?" People teach people, but a hundred words are useless; things teach people, once they come to their hearts. In competitive sports, food is the original sin. No matter what tricks competing products promote, they can''t be compared. Of course, this is also a kind of pressure for Torch Group. If you are exposed in your own game, you will be humiliated and sent to your grandma''s house. "certainly." Chang Haonan nodded: "Numerical calculation problems will consume a lot of time in the computer running process, so it is not appropriate to include too many questions in the competition." "In my opinion, the competition can have only one question, or a choice of two. We can first determine the focus area of ??this competition a few months before the start of the competition each year, and the questions must come from this area. " "A few months in advance..." Song Jingming subconsciously glanced at the calendar on the table: "Then if the competition is held next year, we will have to start preparing for publicity immediately." "That''s easy to say." Chang Haonan replied: "For the first competition, I will come up with the questions myself." "As for the nature of the topic..." He stretched out **** and tapped the table lightly: Its better than computational fluid dynamics! The first part is quite reasonable. But the last sentence was completely beyond the expectations of Song Jingming and Wei Yongming. "Um?" Song Jingming, who was picking up a ballpoint pen and lowering his head to take notes, was immediately stunned: "Computational Fluid Dynamics" "Didn''t I say that the new version of COMSOL has obvious improvements in this aspect and may have more advantages than our software... Should we consider avoiding its edge?" "On the contrary." A smile appeared on Chang Haonan''s face: "Whether they are participating in competitions or conferences, they are all industry insiders and can understand what the questions are about." "Now COMSOL is launching an all-round public opinion offensive against us in the CFD field. If we choose to avoid its edge at this juncture, it will be equivalent to admitting their advantages and becoming the other party''s advertisement." "So, we have to go in the opposite direction, take the CFD problem as a competition question, and kill our opponents in the areas they are best at!" At this time, Wei Yongming, who had been listening opposite Song Jingming, could not sit still. He leaned slightly closer to the microphone and said: "Mr. Chang, this is Wei Yongming from the Technology Department. I have been tested by Professor Liu from the Numerical Computing Business Department before. This new version of COMSOL does have something to offer. If we were to go head-to-head in the CFD field, the final result would be very random... big." Chang Haonan was not too surprised when the third person''s voice appeared on the phone - after all, Song Jingming was in charge of the daily work of the group, and everyone would go there often. And this call doesn''t involve any secrets, so there''s no need to ask someone out before answering it. "Don''t worry, Old Wei." He opened his mouth and said in relief: "I have looked at the test results from the Numerical Computing Business Department, and they are not very complete." "It just so happened that I came across a project in the past two days, so I just tested it myself." Chang Haonan was only halfway through speaking when Wei Yongming on the other end of the phone almost stared out of his eyes. Software testing is a job with as much workload as software development. Chang Haonan said that he tested it "in the past two days" "easily", which is a bit exaggerated. And what''s even more exaggerated is, listen to what that means... It seems like there is something wrong with the test? Sure enough, Chang Haonan continued the next moment: "In short, I found that when their new version of the software dealt with a certain class of specific problems, there would be problems with calculation divergence and even software crashes." "At that time, as long as the topic is selected in this category, COMSOL will be able to make problems under the spotlight..." Chang Haonan has no doubt that when the news of his competition is announced, COMSOL, which is rushing to seize the CDF user market, will definitely take the initiative to sponsor several school teams and let them participate in the competition to make things worse. However, when they actually come, they will find out... Someone''s place was indeed trashed. But its definitely not from the Torch Group (End of chapter) Chapter 943 You cant just leave everything to the C Chapter 943 You cant just leave everything to the Chinese, right? (4K) And at the same time Chang Haonan was digging holes for his competitors. Paris France. His partners are also getting into trouble at this time. In a conference room of the Dassault Group, several engineers were reporting the development progress of various components of the Falcon Z business jet to Serge Dassault and Charles Edelsteiner as usual - Although the project is considered a joint development between four companies, after all, Dassault is responsible for the overall planning and design of the aircraft, so in terms of specific work, they do occupy a position similar to a domestic "original engine factory". The first person to speak was a technician responsible for liaison with Snecma Group: "Currently, Snecma and China Aerospace Power Group have officially determined the research and development schedule. The new engine series will be named SeA. According to different thrusts, there are currently three basic models: SeA350, SeA500 and SeA650. In the future On this basis, the thrust can be further subdivided. "Are the three models... developed in parallel?" Ed Steiner expressed concern. In his plan, Falcon Z should be a short, flat and fast project that will first fly within two years, so it should not be too big. Fortunately, the other party shook his head: "No, priority is given to the SeA650 with the highest thrust, which is a model with a thrust of 6.5 tons. It is used to adapt to the Z9 solution, which is the largest in our Falcon Z project." Ed Steiner finally felt relieved. The Z9 solution is the largest model in the entire series of products, and it is also the model he plans to launch first. The maximum take-off weight of the 40-ton class is even close to that of Chinas C808 regional airliner. As a business jet, it is an absolute giant. Correspondingly, its range has reached more than 12,000 kilometers, meeting all requirements for transoceanic flights. You can even take off from Paris and reach the West Coast of the United States directly without refueling. Of course, in actual operation, few people actually need to carry out such exaggerated flights. But in order to compete with its dominant competitors, mainly Bombardier and Gulfstream, Dassault must create a benchmark product. Just like Airbus must develop the A380. I can not sell it, but I cant live without it. "But... use the core engine of the M88 to remove the afterburner and build a 6.5-ton civilian engine..." Dassault, who was sitting at the head of the conference table, held the half-smoked cigar in his hand and asked: "Can this development progress really match ours?" You cant blame Dassault for having such concerns. As the saying goes, once bitten by a snake, you will be afraid of ropes for ten years. The lesson of the M88 engine that almost killed the Rafale is still vivid in my mind, and it is indeed difficult for people not to think in a bad direction. The technician who just reported did not answer immediately, but pondered for a moment. Mainly Dassault this problem... Not easy to answer. He is only responsible for liaison, and is not an engine designer. Naturally, he cannot guarantee other people''s work. But as a worker, you have to consider your bosss concerns... Therefore, after pondering for a moment, he chose to explain from the side: "I heard that in order to ensure the progress of research and development, the team leader of China rejected Snecma''s request to participate in the research and development of the hot end, and only allowed them to participate in the design of the fan and casing..." The meaning is obvious. You can''t trust Snecma who tricked Gust, but you can''t trust the one who rescued Gust, right? However, this person also had only a partial understanding of the situation. Because the person who vetoed Snecma''s request was actually not Liu Yongquan. But Chang Haonan Although he had not directly cooperated with the French in his previous life, he had read a lot of relevant information. To sum up, the French are not good at hot end research and development. The SAM146 engine jointly developed by France and Russia has a hot-end design defect that results in the actual overhaul interval being only half or even one-third of the expected indicator, and there are also hidden dangers in reliability. Having experienced such an incident before and after, Chang Haonan was naturally worried about letting Snecma get involved too deeply. Fortunately, some minor errors and omissions will not affect the persuasiveness of this explanation. Dassault did not continue to ask, just nodded, and then picked up the cigar again. Seeing that the topic about engines came to an end, Ed Steiner took over the conversation again and gestured towards the other side of the conference table: "Brody, tell me about the avionics system." The engineer known as Brody pushed up his glasses, then sat up straight and replied: Thales Group used to be one of the main hardware suppliers of passenger aircraft avionics and flight control systems, so there are no obstacles in this regard. Most of the hardware is even available on the shelves. "So, all their energy is currently focused on the development of the underlying software program. Our company has a technical team of about 50 people who are cooperating with Thales. Although there is no actual progress yet, it has been used An old Falcon 900 flight simulator has been used as a test platform, and the first version is planned to be tested by March next year. "call-" After listening to a full round of reports, Ed Steiner took a long breath and relaxed back in his chair: "It seems that our partners should be able to keep up with our preset timetable and achieve the first flight of Falcon Z before 2004." "Then, we will follow the original plan..." Just when Ed Steiner was completely relieved and ready to roll up his sleeves and go to work, a slightly rich voice suddenly interrupted his talk: "Wait a moment" Ed Steiner had to stop. Following the source of the sound, he noticed that the person who had just spoken was Didier Casore. Head of Dassault''s aerodynamics department. "Dr. Casore, do you have a question?" "Yes." Kasore nodded and opened the notebook in front of him helplessly: "The wing...the new high-speed wing planned to be used on the Falcon Z..." "There were some...probably some serious problems with the development process." In just one sentence, some sweat started to flow from Kasore''s forehead. Because before he could finish speaking, the atmosphere in the conference room became anxious. Especially Ed Steiner, who looked confident just now. He had been worried before that whether several important subsystems of the aircraft would delay the development process of the entire aircraft. Therefore, after listening to the reports of other groups of liaison personnel just now, I felt relieved. However, before he could be happy for too long, he discovered... He gave the command as fiercely as a tiger, but in the end it was himself who had the problem... This is more embarrassing. Everyone in the conference room either lowered their heads or raised their heads, always looking away from Ed Steiner, whose face was turning red and white. On the contrary, Dassault next to him behaved quite normally. After all, it wasn''t him who was embarrassed. As for the question itself Dassault didn''t think that a project that had only officially started for more than two months could cause any huge chaos. If its great, just reset it to zero and start over. So, instead of Ed Steiner, he asked: "Don''t worry, let''s talk about the specific situation and are there any possible solutions?" Kasore was taking out a handkerchief to wipe his sweat. When he heard the boss''s question, he quickly replied: "A few days ago, as usual, we sent the engineering documents related to the new wing design to the responsible personnel of each partner for backup." "Originally, this was just a normal operation that was carried out every week. But about two days later, someone suddenly responded to us with an urgent email, saying that there were errors in the modeling and design calculations we completed using the new method. Detailed verification methods are also provided. "Then" "Then we tested it according to what he said and found...there was indeed a problem..." "There was a violent oscillation during the calculation process. Although it did not diverge in the end, the reliability and accuracy of the results may not be guaranteed..." After listening to this description, Ed Steiner suddenly felt dizzy. Aircraft design must be blown into a wind tunnel before it is actually implemented. The basis of his plan to race against time is to use a highly complete initial design to compress the time for trial and error in the wind tunnel. But if the calculation accuracy of the design process cannot be guaranteed... Not to mention compression, it may directly lead the design direction to deviate. On the contrary, it is better to just rely on experience and try slowly. "Is there a solution?" he asked quickly. "The development cycle we submitted before was estimated based on the premise that the new algorithm is feasible... But now there is a problem with the entire numerical calculation tool, so it may be difficult for us alone... to solve it in a short time." Kasore felt like he was going numb. Who would dare to think that COMSOL would directly sell software that lacks some functions without any reminder before calculation? He forced himself to take a deep breath, barely managed to calm down, and then continued: "At present, the safest way is to switch back to the old airfoil of traditional design, but the cruising speed will be reduced to a level similar to competitors...about 900km/h, and the range will also be reduced by about 3%." "Of course, we can also change the calculation tools and calculation methods and start from scratch to design a new wing, but the progress... will be affected by at least 4-6 months." Ed Steiner had no choice for a while. The relatively radical new COMSOL software was used in the wing design, which was approved by his signature. But now that there is a problem with the radicalization, at least the responsibility cannot be placed entirely on one''s own subordinates. He''s not British. "Can''t it be faster?" Ed Steiner still held on to his last glimmer of hope. High speed is an important publicity stunt in his plan, especially now that the Concorde is about to retire. A business jet that is close to the speed of sound, but has the same fuel economy and noise as other aircraft. It will definitely capture the attention of target customers. It would be a pity if it disappeared. "It''s hard." Casore shook his head: Actually, one thing I have always wanted to complain about is that the adaptation between our own CATIA and Torch Groups TORCH Multiphysics is not done well, so we have to spend a lot of time on model correction and reconstruction every time. I switched to COMSOL for the first time because they are directly compatible with our project files..." "In short, if the task must be completed according to the original timetable, then I am afraid that the entire airfoil calculation work must be handed over to Torch Group itself. Their numerical calculation business department should have engineers with the most experience in calculations at present, and use it with our brand-new Supercomputer hardware will improve efficiency a lot..." After hearing this suggestion, Ed Steiner couldn''t help but hesitate: "But this is one of the most important tasks in aircraft design... If you find someone else to do it, relying on suppliers will definitely not work..." "If we add a partner, we have to get the approval of three other companies, and Torch Group is just a software company, so it doesn''t know anything about wing design..." "Actually... it might not be that troublesome." Casore suddenly spoke again: "Although Torch Group is a software and computing services company on the surface, I checked its background before and found that it is actually our partner, a wholly-owned subsidiary of China Aerospace Power Group..." In 2001, the ownership structure of unlisted companies was not actually that easy to check. Moreover, the Torch Group was transferred to the Aviation Power Group later. Therefore, Kasore obviously did a lot of homework to find this kind of news. "Is there such a thing?" Ed Steiner was also a little shocked. However, Casore''s next words were even more striking: "And I also found out that the general manager of the Torch Group and the person in charge of our Falcon Z project at the Aerospace Power Group... they..." "They''re... the same person." For a moment, the entire conference room fell silent. "That is to say..." After a long time, Brody, who had just reported, broke the silence: "The email you sent for backup was actually sent to the developer of TORCH Multiphysics himself?" "This should be" Kasore nodded: "In other words, luckily it was given to him." "If we had not discovered this calculation problem in advance, but had waited until we started blowing the wind tunnel to realize that something was wrong, it would not have been as simple as delaying the progress for several months..." And Brody also followed up and said: "If it were him, he might really be able to complete the design plan within the original time." Everyone''s eyes turned to Ed Steiner. As the overall person in charge of the Falcon Z project, his opinion is crucial at this time. And Ed Steiners heart is also at war between heaven and man On the one hand, he feels that Falcon Z is ultimately a French project and cannot leave everything to the Chinese. But on the other hand, if you want to maintain the original development progress, there seems to be no other option. If other subsystems have been developed by then, everyone will stop and wait for Dassaults overall design... It seemed even more shameful. "anyway." In the end, it was Dassault who helped Ed Steiner out: "As Dr. Casore said just now, if we plan to improve the compatibility between CATIA and TORC Multiphysics in the future, we will have to cooperate with each other sooner or later." "So this time... let''s think of it as a way to get closer in advance!" (End of chapter) Chapter 944 The last strategic bomber (counting yest Chapter 944 The Last Strategic Bomber (Counting Yesterday) These two things happened at almost the same time. Ermao, Kiev Oblast, Priluki Air Base. A Tu-154M passenger plane with a five-star red flag painted on its vertical tail was slowing down and taxiing with its thrust reverser turned on. Due to age and disrepair, the track is slightly uneven and has even cracked in some fragile spots. Fortunately, for a passenger aircraft that was originally designed with tactical use in mind, all this is not a problem. As the speed of the aircraft continued to slow down, the two pilots were gradually able to devote some energy to observing both sides of the runway to find the location of the taxiway Normally, this would be what the tower tells them. However, the tower commander at Preluki Air Force Base obviously had little experience, and coupled with his gross English accent, there were a lot of troubles just in the process of directing the plane to land. Fortunately, the airspace near here is extremely clean, and there are no other aircraft. So there won''t be any safety issues. It''s just a pity for the passengers who are almost packed into canned meat in the cargo (passenger) cabin. "I''m talking about Lao Zheng, the air traffic control at Ermao base...why does it feel so unreliable?" On the seat in the front section of the cabin, Qin Han, the special representative for cooperation with Eastern European countries accompanying this visit, rubbed his head that was a little dizzy due to the violent shaking, and asked an officer in an air force uniform next to him. "no way." Zheng Xiashen, who was in charge of the entire airport pick-up task, picked up the big-brimmed hat that had just fallen to the ground, shook his head helplessly, and pointed to the outside of the porthole with his hand: "You look at the environment around the runway." "I conservatively estimate that this airport has not seen frequent landings and takeoffs for five or six years." Priluki Air Base is located in a somewhat remote place near Kiev. During the Cold War, this was the home of the 184th Heavy Bomber Aviation Regiment, which existed as the most important force to deter NATO. But now, with the 184th Regiment itself facing disbandment, naturally not many planes will visit here. The equipment of the 184th Regiment itself only takes off every very long time. The purpose of taking off is not for training or mission execution, but to ensure the basic operation of these aircraft as a bargaining chip with other countries. Therefore, the person sitting in the tower now may not have directed 10 aircraft takeoffs and landings in his entire career. Naturally, I dont have any experience. While the two were talking, Tu 154M had entered the taxiway to the right and was slowly driving towards the apron not far away. "Tsk, tsk, tsk..." Qin Han poked his head slightly and looked at the two dozen strategic bombers lined up on the tarmac. The closest ones are several Figure 95s with four propellers. And a little further away, there was their ultimate goal of coming this time Figure 160. Although he was not a soldier, he still had some relevant knowledge before participating in this mission and was able to recognize these famous models back then. "Such a good airplane is left here to rust. It''s really..." For a moment, Qin Han didn''t even know how to describe his feeling at this time. Finally, he still choked out a few words: "What a pity" "yes" Zheng Xiashen sighed softly: "Who would have thought that a country that could build 70,000 nuclear bombs and have been at tit-for-tat with the Americans for nearly half a century would suddenly fall apart..." As a soldier, although he gave an affirmative answer, his tone was more filled with emotion. When facing an enemy from within, no matter how powerful the army is, it will be difficult to play any role. Qin Han realized that it was not easy to continue this topic, so he changed the subject and swallowed what he had just said: "However, it''s not entirely a pity." "After all, it is precisely because of this that we have the opportunity to stand here today..." "Actually... Representative Qin doesn''t know something." Zheng Xiashen smiled slightly: "It should be...about six years ago. I once led a team here, but it was not as desolate as it is now. You can still see a few planes taking off and landing occasionally." Hearing this, Qin Han''s eyes widened slightly: "Have you been here before?" "Yes, and I am also sitting on this Tu 154..." "Is it also for those planes?" Qin Han reached out and gestured out the window. At this time, the plane happened to be parked at the designated location on the apron. The cabin announcement sounded that it was time to prepare to leave the plane. "Yes, but it got messed up halfway through." Zheng Xiashen stood up and tidied up his military appearance: "At that time, I thought that the Chinese Air Force would forever miss out on these precious guys." "I didn''t expect that I would have a second chance now!" His voice was trembling with excitement. "We were lucky enough to catch up." Qin Han also followed Zheng Xiashen to the aisle, preparing to get off the plane. The two of them are the leaders of this Chinese delegation, but one is simply responsible for picking up the people at the airport, and the other is also responsible for many subsequent written procedures. After all, the delivery of these Tu-160s was completed as part of the Ermao denuclearization process. This is something that absolutely cannot be careless. It wasn''t until a few minutes after the plane came to a stop that a ramp truck hurried over and docked at the cabin door. Immediately afterwards, the hatch opened. A group of dozens of people, headed by Zheng Xiashen and Qin Han, filed down the gangway. Not far from the plane, there were already several soldiers wearing various military uniforms, obviously from different countries, waiting for them. Although ten years have passed since the disintegration of the Soviet Union, the military uniforms of Da Mao and Er Mao are still relatively similar in shape. Sometimes it''s easier to tell the difference from accessories and color. As for those wearing uniforms of a completely different style, it is not difficult to tell from the U.S. symbols on their collars that they are middle- and senior-level officers from the U.S. Army. That''s right, although the transaction subject involved is an aircraft belonging to Ermao. But the main trading countries do not include Ermao itself. The other two countries naturally brought a delegation each, but their planes landed a few hours earlier than China, so the rest of the people had already gone to Kiev to stay. Only a few key people are left waiting here. "Hello, friends from China." The leader, a burly soldier with a tricolor flag embroidered on his left arm, walked up to Zheng Xiashen. Both sides saluted simultaneously: "I am Anatoly Alexeevich Noevich, responsible for the arms transfer and destruction." "Mark Linton." Another American soldier came forward shortly afterwards: "Assistant to the U.S. Strategic Command, responsible for overseeing this weapons transfer and destruction." Although he is called an "assistant", he actually carries three stars on his shoulders, and he is on the same level as Nogovitch and Zheng Xiashen. In response, Zheng Xiashen and Qin Han also introduced their identities respectively. "Okay, guys, let''s relax." Jack Linton spoke first, trying to liven up the atmosphere: "According to the previous agreement we reached, the formal documents cannot be signed until next week, so during this period, we will mainly finalize the details of this mission." "Er Mao has prepared a convoy here. We can go back to the city to rest for a while..." He had been waiting in the biting autumn wind for several hours. It was obvious that he couldn''t stay any longer and wanted to return to the warmth of the hotel room. "Still not." Zheng Xiashen raised his hand slightly, indicating that he had other plans: "We still hope to learn about the status of these pending weapons as soon as possible, especially the four Tu-160 bombers planned to be delivered to our country in the name of debt relief, so we will not go there with you for the time being." Although China sent a small team here about half a month ago to confirm and maintain the status of several aircraft, and also to protect them from possible damage. However, the matter was serious, and it was difficult for Zheng Xiashen to feel relieved until he personally confirmed that the plane was intact. "Oh well." The other two people also had no opinion on this: "Anyways, wish you... wish us all the best." After being polite to the heads of delegations from the other two countries, Zheng Xiashen quickly found Lieutenant Colonel Hang Lijun who had been posted here in advance Strictly speaking, it was the latter who found him. In fact, the other party had been notified long ago to come to pick up the plane, but there were senior foreign military leaders there just now, so it was inconvenient to rush over here. "Welcome Deputy Commander Zheng..." Hang Lijun stood at attention and saluted. He was originally going to say a few clichs, but as soon as he said a title, he was interrupted by Zheng Xiashen: "Okay, we''ll deal with the red tape later. What''s going on with those planes?" It was too obvious that he didn''t like it in front of foreign troops, but in fact, he had been coveting it for a long time. Even before this trip, he seemed to have submitted an application to his superiors, asking if he could personally fly one of the Tu-160s back to China. As a result, I was severely criticized. I can only live with my eyesight. "Following the guidance of the ground crew here and several Tupolev technicians, we conducted a round of screening of the aircraft." Hang Lijun didn''t waste any time and immediately led Zheng Xiashen to the other side of the tarmac while reporting the report: "Three of them are currently in a normal state and can fly normally. The core system of the other one has no problem, but there is some malfunction in the action part of the variable sweep wing. The left wing sweep angle can only be maintained at the fully extended 20 state." "This aircraft can be repaired here by disassembling other aircraft parts and then flown back. However, it may take about a month. You can also fly back like this first and figure out a solution later." Zheng Xiashen, on the other hand, almost did not hesitate: "The night is long and the dream is many. 20 is 20. Anyway, we are just transitioning and we are not engaging in supersonic penetration." "So, of course, fly back first!" (End of chapter) Chapter 945 Take out the secret weapon and use it Chapter 945: Take out the secret weapon and use it Just two days later, a cooperation invitation letter signed by Serge Dassault was sent to Torch Group. What''s the content... It''s naturally about the design method of the high-speed airfoil part in the Falcon Z design plan. And, not even as a supplier. Instead, it simply and crudely increased the Torch Group, which was actually the Aviation Power Group''s share of the entire project. In other words, every time an aircraft is sold in the future, more money can be shared from the profits. And, correspondingly, they will have more say. It''s basically a benefit without any harm. However, the Aerospace Power Group is, after all, a state-owned enterprise. As usual, such matters must be decided after collective discussion. Of course, it''s a discussion, but there''s almost no suspense about the outcome. It''s nothing more than going through the voting process and finally getting General Manager Zhu Linyu to sign. Therefore, there was no special meeting at the group level for this matter, but was placed directly after a regular organizational meeting on Friday afternoon. "Comrade Haonan, I don''t have any opinions on the decision-making of this matter. I just have a question that I am just curious about..." After taking less than two minutes to complete the vote, he may have felt that it was unreasonable to end the meeting so quickly. In short, Zhu Linyu did not immediately announce the adjournment of the meeting. Therefore, Deng Shiyou, one of the deputy general managers, took this opportunity to ask: "This wing design should be part of the aerodynamic design, but almost all of our Aerodynamics Group''s current business revolves around aero engines, and none of its subordinate factories have experience in overall aircraft design..." "Of course, I know that during the head office period, Comrade Haonan, you participated in the research and development of several aircraft models, but after all, the Falcon Z is a large-scale project that also involves communication and cooperation with foreign parties. You cannot rely solely on You can do it alone..." Deng Shiyou is mainly in charge of corporate logistics and subordinate non-business organization management. However, he was also a draftsman in his early years, so he does not have a bad eye for aviation technology. Therefore, the question asked is not outrageous. It is indeed impossible for Chang Haonan to complete such a complicated work by himself, so he must find some helpers. But where the help will come from, that is the question. However, before Chang Haonan could explain, Lin Zuoming, who was sitting closest to Zhu Linyu, replied in a half-joking tone: "Actually, when it comes to communication... there may not be many things that need to be communicated." While speaking, he also picked up the cooperation invitation letter on the table and waved it in the air a few times: "According to what is said here, as long as we optimize the airfoil part according to the requirements and then hand it over to Dassault, the subsequent work, including structural design and integration with the overall aircraft, are not things we need to consider. After he said this, there was a burst of laughter in the conference room Although the wording used by Dassault is "cooperation", anyone can understand what it means by suddenly doing something like this at this juncture. Simply put. "We rashly chose the wrong calculation tool before, and ended up **** up. Now we want to correct our mistakes, but we feel it''s too late in time. Can you help us wipe our ass?" It''s just that everyone is a face-conscious person, and they always have to live up to their reputation. It''s impossible to really kneel down and kowtow. So everyone just needs to understand what''s going on. "Mr. Lin is right." Seeing this scene, Chang Haonan took advantage of the situation and continued what Lin Zuoming said: "Passenger aircraft are different from fighter jets because there is no need to consider the issue of wing-body fusion. In addition, the Falcon X uses a tail-mounted engine layout, so the wing is a relatively isolated element in terms of aerodynamics." "As for Mr. Deng''s question just now..." There was a bit of a smile on his face: "Although our group does not have a unit specifically responsible for the overall design of aircraft, when our Torch Group was still under the Academy of Sciences, we accumulated many designers with such experience through some projects." "For example, we have a numerical calculation business department. The director of this department is my senior brother, Liu Hongbo. He has previously been responsible for the design optimization of the wings and rotors of the MA-60 and Z-12 aircraft..." As soon as this explanation came out, not only Deng Shiyou, but also several other people in the conference room were shocked. Only Chang Haonan himself, as well as Zhu Linyu and Lin Zuoming, who knew the situation better, behaved as before. In fact, we can''t blame the other leaders for not being familiar with the situation. Torch Group is different from the secondary units directly assigned to the Aerospace Power Group from the head office. It is an independent branch that "brings capital into the group". In addition, the general manager is Chang Haonan. Therefore, it has a high degree of autonomy in daily operations - This time participating in the Falcon Z project is an exception. The reason why it needs to be approved by vote is because the French directly sent the cooperation documents to the Aerospace Power Group, so an additional procedure was required. Under normal circumstances, it is basically only necessary to report major personnel appointments and dismissals, as well as financial income and expenditures to the group. By looking at only two pieces of content, it is actually difficult to determine what business a company is engaged in. Especially for people like Deng Shiyou, whose supervisory work has nothing to do with business, it is even less clear. From just a few words in some reports, we can roughly understand that Torch Group is an enterprise related to software development and mechanical design. Who would have thought that there would be a crouching tiger, hidden dragon inside. So Deng Shiyou gave a thumbs up: "Mr. Chang, what a calculation!" "Um?" Although Chang Haonan has long been accustomed to all kinds of praise and exclamation, this wave still left him a little confused: "What did I plan?" "Mr. Chang, please stop being modest..." Deng Shiyou had an expression of "I''ve seen through everything": "When we separated from the aviation industry, we split the subordinate organizations horizontally according to different businesses. But now it seems that Mr. Chang gave us outside the entire Science and Technology Commission system long before the head office was split. Keep a backup plan. "In this way, when we have sufficient resources in the future, we can consider expanding our business scope to aircraft design..." "It''s so far-sighted..." Looking at Deng Shiyou, whose thinking had completely changed, Chang Haonan almost spread his hands and lost his breath. "No, Mr. Deng, please wait a moment." He quickly raised his hand to stop the other party from continuing to think divergently: "I really didn''t think so much at the beginning. I just wanted to expand my business and make more money to revitalize the company..." When encountering this kind of thing in the past, Chang Haonan would usually respond with an attitude of neither admitting nor denying. Because when his personal reputation was not enough, such urban legends really helped to increase his influence. But now, the situation is obviously different. Especially after the last attack, Fu Youquan actually suspected that the incident was related to Chang Haonan''s actions. I have to say it is very humorous. And its also a little scary. So, its better to explain clearly... After obtaining approval at the group level, Chang Haonan quickly approached Liu Hongbo with relevant documents and information. "I remember you sent me an engineering document a few days ago, which should be the aerodynamic design plan for this wing." Liu Hongbo looked at the contents of the cooperation invitation, shook his head and said in a slightly sinister voice: "When Dassault changed the calculation tools from COMSOL before, wasn''t it very resolute? How come it suddenly realized its mistake and changed it..." Chang Haonan wanted to say that they didn''t know they were wrong, but they knew the Falcon Z project was about to be outplayed by themselves. But when the words came to his lips, he swallowed them in the end. "So this isn''t a return to the lost path..." He reorganized the language slightly, and then changed the subject: "Let''s not talk about that for now. Find a few comrades from your department who have participated in the simulation of the external flow field of the aircraft. The time given this time is quite tight and we need to start work immediately." Hearing what Chang Haonan said, Liu Hongbo quickly put away the smile on his face. If Chang Haonan said that time is tight, then he must be really nervous. Therefore, he specially opened the design description document and took a look. "I" The second word he was about to blurt out was stuck in his throat. "Six months?" Liu Hongbo''s eyes almost bulged out: "Why don''t they go to God?" "Even if we want to complete these computing tasks in half a year, it is almost impossible, right?" Among the tasks of Torch Group, there is no content about wind tunnel testing This part of the work will be completed by the French themselves. But even if we only perform flow field simulations, the research object is after all a high-aspect-ratio straight wing operating in the transonic range. No one had experience designing this type of airfoil in the past. It always takes several attempts, or even more trial and error. Therefore, in Liu Hongbo''s view, this time cannot be said to be tense. It''s simply not enough. "Don''t worry, it''s not a big problem." Chang Haonan was sitting on the sofa in Liu Hongbo''s office at this time, sipping the tea in the cup leisurely: "Originally, in order to improve the competitiveness of our company''s products in the CFD field, I specially prepared a secret trick for next year''s version 2.0 TORCH Multiphysics." "But now...since COMSOL is pulling its weight, it doesn''t hurt to take this trump card out for you to use in advance..." (End of chapter) Chapter 946 Changs turbulence Chapter 946 Changs Turbulence ??The numerical calculation business department headed by Liu Hongbo and the technical department headed by Wei Yongming are two parallel departments that are not subordinate to each other. In fact, Chang Haonan first decided to let Torch Group take over part of the numerical calculation business. The original intention was to provide after-sales service to TORC Multiphysics users who had needs for numerical calculations but did not have sufficient capabilities. From this perspective, he once considered setting the Numerical Computing Business Department as a second-level department under the Technology Department. But before he could finalize the matter, the business itself, which was just a foil, became a new hot spot. Many small companies, or ordinary universities, saw that Torch Group provided this kind of service, and simply gave up their plans to start simulations from scratch and directly outsourced all related businesses. At first, Chang Haonan felt that this was a bit of a delay, so he set rules to give priority to those users who purchased TORCH Multiphysics. However, the business volume has not decreased at all. In the end, we had no choice but to continuously expand the scale of the numerical calculation business department, and then officially listed it as one of the company''s main businesses. Later, they were even able to surpass the profits of the software department from time to time. Therefore, although there is cooperation between the two, most of the time they are still responsible for their respective acres of land. As for the "secret trump card", since it was prepared for the 2.0 version of TORCH Multiphysics, and Liu Hongbo hadn''t used it yet, he naturally knew nothing about it. Logically speaking, for this type of high-impact project, for the sake of safety, you should choose the most proficient computing tool possible, that is, an old version with stable performance. But right now, Dassault is pushing too hard. In addition, according to what Chang Haonan meant, this trump card was developed by him himself. Then, Liu Hongbo is also willing to give it a try... Soon, about a dozen business backbones were pulled into an office on the top floor of Torch Group. Chang Haonan was already sitting at the head of the conference table, waiting for everyone. In fact, after serving as the chief planner of the Aviation Power Group and a professor at Beijing Hang University, he rarely returned to the Torch Group to work. Therefore, some new employees may not even have met Chang Haonan himself. Fortunately, the people who just walked in looked familiar, and they should be from the earliest members of the Torch Group. Liu Hongbo arranged the seats for the rest of the people, and then he sat on the left hand side closest to Chang Haonan: "Mr. Chang, according to your request, these comrades have either participated in the Ice Flying Group''s helicopter project with me, or they have switched jobs from the Aviation Industry Corporation of China, and they all have aircraft-related design experience. When the Numerical Computing Business Department was expanded a few years ago, there were still relatively few people in China who could master this skill. Moreover, a considerable number of them are the "disciples" brought out by Chang Haonan in the aviation industry system. For example, Lin Shikuan and others from the 601 Institute. During that time, Torch Group happened to be named and praised by superior leaders as a model of "high-tech enterprise". Therefore, in order to show support for Chang Haonan and to solve the work problems of some non-staff personnel after the reduction of state-owned enterprises, the two parties hit it off and transferred the working relationship of some of them to Torch Group. At that time, the latter was still an enterprise under the Academy of Sciences system, and both parties were happy. Who would have thought that within two years, Torch Group would become a wholly-owned subsidiary of Aviation Power Group... Now he becomes "capitalizing the enemy". However, it was precisely because of these people that Chang Haonan had the confidence to take over the wing design task alone in the past two days. Otherwise, it would just depend on him and Liu Hongbo... I''m too exhausted to make it on time. "Comrades, I now have a calculation application submitted by the French Dassault Group, which is the airfoil design of a high-speed business jet..." "..." After everyone sat down, Chang Haonan first introduced the general situation of this project in a few words as quickly as possible. Immediately afterwards, the topic shifted to todays focus: "This task has a tight deadline and heavy tasks. The fault tolerance rate of the current old version of TORCH Multiphysics algorithm is quite low, and there are no opportunities for trial and error at all, so some new computing tools are needed to improve efficiency." "Originally, the new software version 2.0 has been optimized for this kind of calculation task of external flow field simulation, but the software itself has not been tested and packaged, so it cannot be used directly." "Fortunately, one of the optimizations related to CFD has been completed and can be applied in the current version 1.32 software in the form of custom function modules..." TORCH Multiphysics is welcomed by many top research institutions. In addition to its excellent performance, this highly free custom module is also a major reason. It allows advanced users to edit models or algorithms by themselves and integrate them into the software. Although there are still some limitations, for the software industry in 1997, it was almost equivalent to unlimited imagination. Almost all the people sitting in this conference room have worked in the same R&D team as Chang Haonan in the past. So, when they heard him talk about a new optimization, everyone took out their notebooks as if they were conditioned reflexes - So familiar. It''s like going back to the days when we worked on projects together. Chang Haonan, who saw this scene, also smiled knowingly. Then he put down the tea cup, just like before, stood up and walked to a mobile blackboard: "Simply put, turbulence problems are still the main factor restricting engineering fluid simulation at present, and after taking into account efficiency and accuracy requirements, the currently widely used method is still based on the Reynolds average equation." "But for complex engineering fluid motions, such as flow separation and transition prediction, a turbulence model that takes into account different flow states is needed, which will inevitably greatly improve the efficiency and accuracy of engineering fluid simulations." "Therefore, I made some improvements to the two-equation model that was commonly used in the past. Only the turbulent kinetic energy is transported, and other turbulent variables are solved algebraically using high-order dimensionality reduction methods..." At this time, someone from below suddenly whispered: "The new turbulence model... why not call it Chang''s turbulence?" The half-joking tone triggered a burst of good-natured laughter, which was just the right amount to relieve the somewhat tense atmosphere in the conference room. And amidst the laughter, more than one person actually wrote "Chang''s Turbulence" as a name in his notebook... While talking and laughing, Chang Haonan had already written the N-S equation that everyone is familiar with on the blackboard. Of course, for the speed range of the Falcon Z project, there is no need to consider body forces and additional heating terms. Q/t+(F-Fv)/x+(G-Gv)/y+(H-Hv)/z=0. "The Cartesian coordinate system directly coincides with the physical position of the computational domain, but requires additional processing methods for the density changes of the grid, which is not suitable for direct programming calculations. Therefore, the physical space (x, y, z, t ) into the computational space (, , , )..." "From the closedness problems of turbulence simulation that we have often solved in the past, we can find that the solution and determination of the mixing length need to be linked to the turbulence field boundary conditions and flow conditions. There is no universal equation. In order to solve this problem, I will use the method of seeking the mixing length distribution of spatial turbulence structures to establish a universal connection between Reynolds stress and time-averaged flow field..." The content introduced by Chang Haonan has made a qualitative leap in difficulty compared to the original. Especially at the level of mathematical theory. Fortunately, others have not been idle over the years. The accumulation of a large amount of computing experience has somewhat enhanced their understanding of computing models and algorithms. Therefore, although they could not fully understand all the theoretical knowledge used by Chang Haonan, at least everyone could keep up with the ideas. Compared with the situation in the past when I would be interrupted and asked questions every time I spoke, it has improved a lot. And this is the most precious wealth that Chang Haonan has left since his rebirth... (End of chapter) Chapter 947 Ready to pick up! Chapter 947 Get ready to pick up the plane! After several days of preparation and study, the design work of the high-speed straight airfoil required for the Falcon Z project has begun in full swing. The nominal design leader is naturally Chang Haonan. However, Liu Hongbo is still responsible for the actual daily work. Chang Haonan''s main job right now is to develop new image separation and target tracking algorithms for Ocean One. Therefore, unless there is any problem with the new turbulence model, he should only perform some data verification and algorithm check work. In this way, a week passed quickly. Chang Haonan has made little progress on these two projects. After all, they are still in their infancy. However, the ultra-short laser processing equipment previously developed for Liming Factory has entered the factory trial production stage of the prototype. That is to put a piece of equipment with all functions designed according to mass production in the factory instead of conducting experimental small batch production in a laboratory environment. It is mainly used to test the environmental adaptability of the equipment. Of course, the "small batch" here is just a way of saying it. The production capacity of many equipment at this stage is even higher than after it is officially delivered and entered mass production. If nothing unexpected happens, by the second half of next year at the latest, Liming Factory will be able to process turbine disks and turbine blades for M88-3 and SeA series engines in addition to the production capacity of Turbofan 10. This is also a very important time point for the production and finalization of the turbofan 10. It''s just that compared to another thing, it''s a little less interesting - One day, when Chang Haonan was about to get off work from the Torch Laboratory. The red landline on his desk suddenly rang. On the caller ID, there was a number I had never seen before. However, the people who can get through this dedicated line must be people within the organization. Therefore, although Chang Haonan was confused, he still picked up: "Hello, I''m Chang Haonan." "Comrade Haonan." A slightly unfamiliar voice sounded on the other end of the phone. At least, Chang Haonan failed to determine the identity of the caller in less than a second while the other party spoke. Fortunately, the other party did not show off and directly reported his family name: "I''m Qiao Chenqing." "Mr. Qiao?" Chang Haonan was stunned for a moment, then turned to look at the perpetual calendar hanging on the wall. November 14th. At this time, its a bit out of the blue. The person in charge of the Air Force suddenly contacted me. After thinking about it, it seemed that the only possibility was that... "Yes...Er Mao''s negotiations have come to an end?" Chang Haonan immediately guessed. Although the relevant strategies were originally proposed by him, nuclear-related negotiations are, after all, a highly professional and sensitive topic. Therefore, after Chang Haonan left the Jingxi Hotel that time, he did not directly participate in anything related to it. Only occasionally would I hear some progress from Ding Gaoheng or Fu Youquan. The last time was about a week ago. A high-level delegation has already gone to Ermao to carry out the final inspection, transfer and destruction of weapons and equipment. The so-called "transfer" here naturally refers to those long-coveted Tu-160 bombers. Now counting the time, if everything goes well, the result should be almost there. Sure enough, Qiao Chenqing on the other end of the phone gave an affirmative answer: "Yes, we have signed relevant agreements with three other countries. Four Tu-160 bombers will be able to return to China from there tomorrow afternoon!" ! ! Upon hearing the news, Chang Haonan''s right hand holding the microphone shook suddenly. Immediately afterwards, his body shook slightly. With the sound of "dong-". His whole body almost hit the office chair. It was indeed his idea to bypass the arms sales treaty and bring a few still-flying Tu-160s back to China from Ermao in the name of debt repayment. Planning for this matter began several years ago. But from beginning to end. Even after the attacks in September this year. Even after the Americans have agreed to the conditions proposed by us. Chang Haonan still cannot guarantee that this matter will succeed. It can be said that this is the most uncertain thing he has done since his rebirth - After all, it is a strategic weapon without any room for maneuver. Taking off from airports in the Northeast, combined with the range of air-launched cruise missiles, it can even cover almost all important cities in North America... Moreover, the closer to success, the deeper the anxiety in Chang Haonan''s heart. However, during this period of time, he had been using the excuse of being busy at work to cover up his restless mood. But covering it up doesn''t mean it''s gone. On the contrary, it will become more intense because it cannot be vented. Therefore, when Chang Haonan first heard this news that symbolized the settling of the dust, Chang Haonan''s first reaction was not even excitement. But relief. "Mr. Qiao..." After being silent for several seconds, Chang Haonan''s breathing finally calmed down again and said: "Tomorrow, can I..." Before he could finish the question, Qiao Chenqing gave the answer first: "certainly." "The purpose of my phone call is to ask you to come with me!" After hanging up the phone, Chang Haonan immediately canceled all his schedule for the next three days. Then, the next day, he and the Air Force delegation, including Qiao Chenqing, boarded a plane to an airport in Haojing. "to be honest." In the cabin, Qiao Chenqing specially chose the seat next to Chang Haonan: "I still can''t believe that Americans would actually agree to this deal." Chang Haonan said in his heart that I actually didnt dare to believe it. But this suggestion came from him first, and now that he was unsure, it seemed a bit pretentious. So, he had to reorganize the language: "Aiwuhan''s matter is really important to the United States today." This White Houses total number of votes in the general election was even less than that of its competitors. It relied on a slight advantage of 1 electoral vote to finally win. Therefore, most people thought it was just a transition. As a result, because of this attack, The support rate has been soaring, and at its highest point it was almost approaching Roosevelt..." "So, for the benefit of this aspect, let alone a few Tu-160s, if the Russians are willing to sell them, I guess they will turn a blind eye even if they buy a few 941 nuclear submarines." This can''t be considered an afterthought by Chang Haonan. The reason why he first decided to start with those Tu-160s was actually with this idea in mind. Because Chang Haonan had read some people''s interviews or memoirs before he was reborn. Many of them specifically mentioned that after the 2001 attack, Mr. Bush was in an extremely emotional state. Basically, "As long as you can help me kill Ai Wuhan, I will really treat you as a brother." This state should not appear in a leader. But in the special context of that time, it didn''t seem unreasonable. In short, he relied on advance planning, poor information and some luck, and finally won the bet. Therefore, although Qiao Chenqing intuitively believed that Chang Haonan should have a deeper analytical logic, he did not struggle with this issue in the end. Anyway, you are right, then you are awesome... "Xiao Chang." Qiao Chenqing changed to a more affectionate title: "For our country, the return of these four planes is not the end, but the beginning." "The pick-up team reported to me before that these Tu-160s were leftovers picked up by the Russian army. The condition of the aircraft is not optimistic. Although it can still fly, many subsystems are in an unusable state." "If you want to maintain them for a long time, you need to build a related logistics maintenance and system, especially the airframe structure and power system that are related to the basic safety of flight..." He said it very euphemistically, but the meaning was very obvious - An aircraft like the Figure 160 cannot be serviced by the Air Force ground crew alone. Especially the four NK32 afterburning turbofan engines are something that the Chinese Air Force has never been exposed to before. "Mr. Qiao, I can''t guarantee you anything now." Chang Haonan thought carefully for a while and finally said: "But it was a coincidence. A few years ago, by chance, I exchanged a large-scale vacuum electron beam welding production line from Lao Maozi, and also had a lot of related technical information, which was specially used for the production or maintenance of large-scale vacuum electron beam welding. Metal structural parts of aircraft "Let''s not talk about the large-sized spar and wing boxes. It''s still no problem to make some minor repairs." "As for the NK32 engine... we are really at a loss now. It may be difficult to produce new ones in a short time. However, limited life extension and maintenance of existing models... If we can be given some time to study, it should not be difficult to do. arrive" "In addition, the NK32, in fact, the Russians themselves cannot make new ones now, so they are actually on the same level as us, and they have more Tu-160s on hand, so they are definitely more anxious than us, so it is not impossible. Cooperate on this matter..." As Chang Haonan took stock of each item, the worry on Qiao Chenqing''s face gradually turned into shock. Whether these problems themselves can be solved in a short time is actually secondary to him. Because the superiors didn''t even set a clear timetable. There is no pressure on KPIs. But Chang Haonan''s ability to list a list of things to be solved in such a short period of time is very exaggerated. You know, from September 11 to now, it has only been two months. During this period, he was not idle all the time, but he still had a lot of other work to do. Not to mention, the vacuum electron beam welding production line just mentioned was brought back a few years ago... This doesn''t look like preparations started just two months ago. It''s more like having a plan. Of course, Qiao Chenqing did not think that the attack was related to Chang Haonan like Fu Youquan did. But at least He was certain. Chang Haonan has actually been eyeing those planes for a long time! (End of chapter) Chapter 948 What to do with domestic bombers? Chapter 948: What to do with domestically produced bombers? ?About two hours later, the plane finally arrived at Lintong Yaocun Airport in Haojing City, Qin Province. Although Chang Haonan first raised the idea of ??acquiring Tu-160 after the attack in September, the Air Force took the matter seriously. Less than a month later, the 108th Regiment of the 36th Air Force Division received an order to reorganize and reorganize. It handed over the original equipment reorganization system to the other two brother units, and entered a state of reorganization and training, preparing to receive the Chinese Air Force''s third Two types of strategic bombers In fact, the reason why Air Force leaders chose this unit was based on historical considerations. The 36th Air Force Division, formerly the Fourth Independent Regiment of the Air Force, is the only unit of the Chinese Air Force that has been equipped with strategic bombers (Figure 4), and the only unit that has had formal nuclear-related positions. Although these nuclear-related positions have been eliminated long ago, as of 2001, many older generation commanders and fighters who had previously engaged in related work were still working hard at their jobs. After all, it is not completely dated. It won''t be a black eye when you recover. Of course, the "recovery" mentioned here only refers to the restoration of nuclear-related positions and nuclear-related establishments. As for restoring space-based nuclear capabilities... There is no timetable yet. On the one hand, China has just joined the WTO, and Americans attention has finally been attracted to the Middle East. It is in the most critical stage of keeping a low profile and is not suitable for large-scale nuclear expansion. on the other hand. It''s also more important. The few nuclear warheads currently in China''s hands are developed according to the requirements of ballistic missile delivery and are not suitable for air delivery. Not even an air-launched nuclear vehicle... So, there is indeed a long way to go. As the plane slowly descended, Chang Haonan gradually saw clearly the situation at the airport on the ground through the porthole. The runways and taxiways had obviously just been renovated and reinforced, and there were even some engineering vehicles painted in military green parked not far away. They probably hadn''t had time to evacuate yet. Even the marking lines above have been repainted, and the colors look much brighter than those at other airports. On one side of the runway, two rows facing each other, with a total of four metal roofs, have been built. Even looking down from an airplane, you can see that its span is extremely huge. At least sixty or seventy meters. Judging from the quantity, it is obviously specially prepared for those few Tu 160s. On the other side, there is a regular apron. Two rows of H-6 bombers are parked above. There are about a dozen in total. "Mr. Qiao." Chang Haonan pointed out the window and asked Qiao Chenqing next to him: "Are these H-6s the current equipment of the 108th Regiment?" The latter knew the situation here very well and shook his head without even looking outside: "Strictly speaking, it is the equipment before the 108th Regiment." Looking at Chang Haonan''s curious eyes, he paused briefly and then continued to explain: "On paper, these aircraft have been handed over to the other two regiments of the 36th Division." "However, in order to enhance the confidentiality of Yaocun Airport, the 106th and 107th regiments transferred to Wugong last month. Because the 108th regiment''s modification task was too urgent and they had not had time to complete the handover process, they still stopped here. As he spoke, the plane landed at the end of the runway and began to slow down. This also made Chang Haonan notice the white radomes under the noses of several of the aircraft, as well as the very smooth belly due to the removal of a turret - Boom 6H. The latest model of the H-6 family. After the plane entered a smooth taxiing, Qiao Chenqing also noticed Chang Haonan''s gaze: "There are several H-6Hs here that were delivered in small batches last year." "But..." He showed a slightly helpless smile: "It has fallen behind the times...so the current position is a bit embarrassing..." Chang Haonan was a little nervous when he heard this, but in the end he suppressed his laughter. After all, this incident was ultimately caused by him. According to the original plan, this "new" bomber, which was established in 1995, should enter service at the beginning of the 21st century and serve as the main missile carrier aircraft of the Chinese Air Force for a long period of time, combined with the TV-guided KD63 missile to assume the responsibility. Most of the ground precision strike missions. From the perspective of the time, there was actually nothing wrong with this idea. In the mid-1990s, let alone the J-10 and J-11, which seemed to have nothing to lose. Even the JH-7 cannot guarantee the localization rate. As a result, production of the imported Spei MK202 was quickly stopped after the spare parts were exhausted. Therefore, the H-6 is my countrys only air-based and ground-based weapon platform that can maintain quality and quantity and serve. In order to ensure sufficient range and power, the KD63 design prototype chose the earlier YJ-6 anti-ship missile, so it can still reach a range of nearly 70 kilometers while carrying a 500 kilogram warhead. The price is that the bomb weighs an astonishing two tons. Only the H-6 can carry it. Both directions went to belong to yes. Originally, this was supposed to be a beautiful story of machine-gun cooperation and mutual achievement. However Times have changed. When the H-6H and KD63 both completed testing and finally entered small batch trial production, the time had already reached 2000... Although this speed is much faster than the original timeline. Unfortunately not soon enough. At almost the same time, the fully domestically produced and multi-purpose J-11B was to be equipped in small batches. After major changes, the J-10A with full multi-purpose potential has also entered the end of testing. As for the J-H-7, which could not be built in large numbers at that time and was requested by the navy and air force... Now she has become Mrs. Niu. The emergence of a large number of cutting-edge tactical aircraft has also prompted the Aerospace Science and Industry Missile Research Institute to pick up the previously abandoned medium-sized air-to-ground missile project, KD88. The Eighth Academy of Aerospace Science and Technology has already established a new supersonic air-to-air/air-to-ground universal missile project. That is the Pili 13/KD13 that Chang Haonan strongly recommended before. Both models have entered the final stages of target testing. Not to mention other models that are still in the development process. Anyway... The H-6H''s living space was almost squeezed out. However, in order to protect the business of Haofei Group and to maintain the R&D capabilities of China''s domestic bombers, low-speed production is still maintained and used as an emergency transitional model. It can only be said that the future of a piece of equipment not only depends on the efforts of R&D personnel, but also takes into account the development of the historical environment. Some of the equipment that was originally planned to be just for transition turned into the main force in the end. And some equipment that was originally used according to the main strength, but in the end had to be reduced to a transitional... It takes some time from the time the plane lands to when it stops and gets off the plane. In addition, we just happened to be chatting about the H-6. Therefore, Qiao Chenqing asked casually "Xiao Chang, do you think...this H-6 has the potential to be further improved?" This seemingly simple question made Chang Haonan a little confused for a while. "I think... there should still be some." After about half a minute, he said hesitantly: "Although the performance of the Figure 16 platform has lagged somewhat behind, in some special cases, a platform that can carry large-sized weapons may still be needed." "At present, our country''s stealth technology is not yet mature, and if we develop a new, non-stealth medium bomber from scratch, there will be no qualitative difference from continuing to improve on the H-6... So, why not choose a A more cost-effective solution. "Anyway... when it comes to space-based strategic deterrence, we theoretically have it..." Chang Haonan said and glanced at the distant skyline. According to the plan, the four Tu-160s should have taken off long ago and will probably arrive here before the sun sets. "That''s true..." Qiao Chenqing also collected her thoughts at this time. Reason told him that at least during his tenure, the vast majority of China''s bomber forces would still have to accompany the H-6... However, Chang Haonan next to him did not completely stop thinking. In addition to the airborne equipment, the core improvement of the previous generation H-6K was to change the turbojet 8 to D30KP2/turbofan 18, thus greatly extending the range. Guam can even be directly included in the combat radius. However, in this life, after the production of Turbofan 10 is finalized next year, the Turbofan 20 project will be approved in advance. Even most of the IL-76s China has on hand already use the MF model of PS90A-76. In this case, if we go back and imitate D30KP2... it seems a bit abstract. But the special structure of the H-6 engine located at the root of the wing cannot accommodate a large bypass ratio turbofan engine... "The **** it belongs to." Chang Haonan complained in his heart: "A product like D30KP2, which has become seriously outdated, has actually found a carrot hill that cannot be replaced by others..." (End of chapter) Chapter 949 The "white swan" returning eastward Chapter 949 The "White Swan" Returning East Until everyone got off the plane, Chang Haonan couldn''t think of a more reasonable solution than in his previous life. Mainly because the combination of D30KP2+H-6 is indeed too cheap. Whether it is to independently develop a new airframe or a new medium bypass ratio turbofan engine, it is a serious extravagance and waste in comparison... In the end, he decided not to pursue his political career. Leave the problem to the aviation industry group next door - If they feel that the engine is a consumable and it is safer to build it themselves, then it does not mean that they cannot localize the D30KP2. By the way, I will practice my skills for the following research institutes with weak skills. If they feel that it is not worthwhile to set up a project for hundreds of engines, then Chang Haonan is happy to focus resources on more important models. The right is to support northern neighbors to resist military pressure from NATO... Just as he was thinking this, two air force officers with twenty-four military ranks on their shoulders had already arrived in front of everyone. The two were Yan Kun, the person in charge of Lintong Station, and Shou Guofu, the political commissar of the 108th Air Force Regiment. At the beginning of the 21st century, the Air Force had not yet undergone reforms, and aviation units and ground support units were widely separated in organization. Under normal circumstances, aviation regiments and stations are regiment-level units. But due to well-known reasons, here they are all assigned to be assistant division commanders. As for the leader of the 108th regiment... Naturally, he was still flying back from the plane. After a brief situation report, everyone, led by Yan Kun and Shou Guofu, arrived near the area covered with a hangar. Although he had roughly estimated the scale of these four things when he was on the plane just now. But now that he was actually standing on the ground observing, he still felt a bit oppressive. In fact, if we look at volume alone, the sizes of these hangars are not particularly outrageous. After all, even the main building of the Torch Laboratory has a lateral span of about 60 meters. It''s just that the hangar is transparent from all directions, so the visual effect is much more exaggerated. Moreover, Chang Haonan discovered that two of them had not actually been completed yet. It can be seen that the relevant preparation work was indeed carried out in a hurry. "We originally planned to build a reinforced hangar for each of these four aircraft, just like the B52 at Tyndall Air Force Base." Qiao Chenqing sat on the viewing platform and said to Chang Haonan next to him: "But...it turned out that time was really tight and it was simply impossible to build four hangars in two months." He smiled helplessly: "Furthermore, the construction of super-large reinforced hangars is also very difficult. Our country currently has no experience in this area. In addition, the Tu-160 itself does not have a stealth layer and is relatively sturdy, so we temporarily built four hangars. At least take precautions against wind and rain..." Chang Haonan was a little difficult to evaluate for a while. In fact, even the wealthy US military, in most cases, leaves non-stealth bombers like the B1B and B52 out in the open air. After all, strategic bombers usually park in the rear areas. If a place like this is bombed, there is a high probability that it will go to the nuclear warhead. Whether or not there is a hangar does not really matter. Moreover, the exterior parts of the aircraft are actually designed to withstand rain and snow, so they are not as delicate as outsiders imagine. As for stealth aircraft, the stealth paint is too delicate and must stay in a place with constant temperature and humidity, so it has no choice but to have a closed environment. However, Qiao Chenqing, as the head of the Air Force, should naturally be familiar with these things. Therefore, this behavior can only be explained as... Similar to the kind of care a child would receive after getting a new toy. Fortunately, it''s just a few tin sheds and doesn''t cost a lot of money. Even if the plane matter is put aside, at least the working environment of the ground staff can be made more comfortable. Following Chang Haonan''s random thoughts, the sun also moved all the way to the west, and finally hung not far above the horizon. In fact, if we flew directly back to China from Ermao, we should have arrived a few hours earlier. But the Tu-160 is a strategic bomber after all, and many countries are unwilling to let such a four-plane formation pass through their airspace. From China''s perspective, if you choose to fly direct, many areas in the middle are not really safe. The disintegration of the Soviet Union left behind a large number of medium and long-range field air defense systems, and no one knew which ravine contained a missile launcher. Therefore, the pick-up crew still chose to take a relatively safe route. Just when everyone was getting a little sleepy from waiting, a refreshing voice finally came from the intercom that had been placed on the table: "Attention all units, direction 310, distance 330km, four large targets, diamond formation, altitude 9000, speed 950..." Those Tu-160s still maintain the technical status of the Soviet Air Force period. Naturally, it is impossible to have the Chinese identification friend or foe system - Even if it were available, IFF would not be effective at this distance. Therefore, the radar can only distinguish the approximate attributes of the target. Of course, at this juncture, a rough attribute is enough. Everyone knows what that will be. However, for such a big event, of course not only people from the Air Force were sitting on the viewing platform. "Four goals?" A leader in casual clothes was a little confused and approached Qiao Chenqing: "Didn''t I just say that after entering our country''s airspace, there will be fighter jets accompanying and escorting the entire journey?" "Oh...because the ones that can see so far are early warning radars in the UHF band, and their accuracy is relatively poor." The latter replied: "So, either the RCS of the tactical aircraft is too small and has not been detected, or the echoes of the small targets are simply mixed into the large targets." "How can it still be like this?" The person who just asked the question had a shocked look on his face and was obviously a complete layman in terms of technology. "sure." Another officer next to him replied: "In fact, a typical tactic of the air forces of Western countries is to hide tactical aircraft performing reconnaissance or bombing missions near normal flying passenger planes, so as to allow the defenders to use defensive weapons." "There are many incidents of accidental shooting of passenger planes, which happened like this, but it is difficult to find evidence." For several aircraft flying close to the speed of sound, a distance of more than three hundred kilometers does not take too long. Therefore, Chang Haonan quickly saw several streaks of brown smoke extending from the northwest through the telescope The NK32 engine uses nitrogen-containing T-8B aviation fuel. When the aircraft flies at low or ultra-low altitudes, a trace amount of nitric oxide will be ejected from the tail nozzle due to rich combustion, and then it will be quickly oxidized into nitrogen dioxide. It also manifests as a streak of yellow smoke. And just a few seconds later, a large white aircraft with an exaggerated wingspan appeared in his field of vision through the thin clouds. Next, there will be the second and third planes... "!!" At this moment, Chang Haonan''s breathing almost stopped. Although these aircraft were not designed and built by him. But it was through his hands that he came to China. In fact, this is the first time in Chang Haonan''s life that he has seen this model in person. It was only then that he finally understood intuitively why the designer called it the "white swan". Four planes, like swans spreading their wings, floated lightly from the distant sky towards the airport. It is completely impossible to see how bulky this 400-ton body should be. There is only elegance. It must be admitted that in terms of aviation aesthetics, the Soviets, like the British, have reached certain limits. However, the directions of the two limits are opposite. From an aviation design perspective, the Tu-160 has almost identical design features with its old rival B1B. But when the two planes are placed together, their appearance gives people completely different feelings. "I''m coming!" At this time, excited shouts finally broke out from the viewing platform. After Chang Haonan was reborn, his five senses became much sharper than ordinary people, so others would see it later than him. After a few dozen seconds, a total of eight J-11 fighter jets located on both sides of the four Tu-160s also appeared in front of everyone. Obviously, the distance is very close. However, the fleet did not intend to land directly. Instead, directly above the airport, a 12-plane formation made a low-speed pass. Of course, to ensure safety, the height is not very low. It was just so that the crowd on the ground could vaguely see the belly of the aircraft with the naked eye. Even so, Chang Haonan seemed to feel a top-down airflow, causing him to subconsciously tighten his hat. And there are not a few people who have made similar actions to him. Obviously, this is not an illusion. As for those without hats... There are more than one person who exposed the secret of being a "Mediterranean" because his hair was blown up... It can be said that this is a feeling that no one has ever experienced... A few minutes later, the four Tu-160s returned to the airport along the landing route. The J-11s responsible for the **** mission have already left. There is only one runway at Yaocun Airport, and the four bombers must be arranged to land in order. If we keep up with the other 8 planes, it will be a bit of a mess... Under the command of the tower, the first plane lowered its landing gear and slowly fell from outside the airport wall. With a "squeak" sound, the main landing gear hit the specially reinforced cement runway surface, and a cloud of blue smoke generated by rubber friction rose up. Immediately afterwards, three deceleration parachutes arranged in a "pin" shape popped out from the tapered part of the tail. The sound caused by the friction between the umbrella surface and the air can be heard even on the tarmac. But the sound was immediately overshadowed by the thunderous cheers from the viewing platform... The publicity officer caught the moment when the plane slid on the runway and passed directly in front of the viewing platform, and quickly pressed the shutter. The camera recorded the time at this moment - November 15, 2001, 16:07. The first Tu-160, numbered "Red 24", landed at Lintong Yaocun Airport in China, becoming the first supersonic strategic bomber equipped by the Chinese Air Force. (End of chapter) Chapter 950 Buy one get one free cruise missile? Chapter 950: Buy one, get one free...cruise missile? Since they had never been exposed to such a large parachute in the past, and they had to release three at a time, the ground crew was somewhat in a hurry. As a result, the interval between the landings of each plane also seemed slightly longer. Fortunately, these Tu-160s have plenty of range and there is no risk of fuel shortage. It wasn''t until most of the sun disappeared below the horizon that the last plane, numbered "Red 14", finally landed smoothly on the ground. Soon, the four planes were facing each other and parked in two rows at the entrance of the hangar that had been prepared. Of course, it can also be said to be two columns. At this time, the crowd on the viewing platform was already a little bit ready to move. Just now, everyone has seen this kind of aircraft in the sky through telescopes. And now, it is natural to want to take a closer look. However, in an area like an airport, the sky is vast and the tower is the largest. Therefore, after the four planes shut down their engines, set their gear blocks, and finally determined that it was completely safe, a few minibuses slowly drove over and took these dozens of people to the parking area a few hundred meters away. . At this time, pilots wearing two different flight uniforms also climbed out of the door behind the nose landing gear one after another - This airport pick-up mission did not take 10 days to complete. It is tantamount to wishful thinking to fully learn to control such a complex behemoth in such a short period of time. Therefore, during the return flight, the captain and navigator-operator of each aircraft were Ermao pilots hired from the original unit. Only the first officer and navigator (actually the bombing system controller) were from the Chinese Air Force. These eight Ermao pilots will also stay here as instructors for a long time together with the ground crew who arrive later. "Report!" A pilot trotted up to Qiao Chenqing. Although there was no military rank on the flight suit, and he didn''t even have time to take off his flight helmet, no one could really identify him. But judging from his smooth movements, he was probably the commander of the entire flight mission. Sure enough, the other party raised his hand and saluted Qiao Chenqing: "Li Dewen, the commander of the 108th Regiment of the 36th Aviation Division, has successfully completed the mission of picking up the plane and returning home. He is reporting to you. Please give your instructions!" In the cold wind of early winter in the northwest region, Qiao Chenqing also stood at attention and returned the same standard military salute: "Congratulations on your successful completion of the mission. This will be a day recorded in the history of the Chinese Air Force." "Come back to the team and have a good rest!" Under normal circumstances, at this time, Captain Li Dewen should answer yes and then do what he should do. After all, I have been flying for almost ten hours straight and I really need to rest. However, he did not do this. Instead, he took a step forward, approached Qiao Chenqing, and said in a voice that only a few people nearby could hear: "Mr. Qiao, when we were at Ermao''s side, we had a relationship with their person in charge... um... so..." Looking at Li Dewen who was hesitant to speak, Qiao Chenqing frowned slightly: "Made a mistake?" The former quickly shook his head like a rattle: "That''s not true..." "Hey...you didn''t make a mistake, why are you hesitating..." Qiao Chenqing''s heart, which had just been hanging, finally dropped: "If you have something to say, just say it, it''s all our own." Obviously, this is what Li Dewen was waiting for: "So when we returned, Ermao secretly brought us some more gifts..." "Bringing something?" Qiao Chenqing turned slightly and looked at the dozen pilots who climbed out of the cabin: "what?" Obviously, his understanding was slightly biased, thinking that the "gifts" Li Dewen mentioned were gadgets such as souvenirs. However, Chang Haonan, who was at a later position, saw some clues. "Mr. Qiao, look over there..." He said and pointed to the "Red 24" parked farthest away from everyone. That is the plane that Li Dewen personally took. "how" Just as Qiao Chenqing was about to ask what was wrong, he noticed that the belly magazine of the red 24 was actually open. Considering that the Il-76 transport aircraft fleet transporting relevant auxiliary equipment would not arrive until the next day, it is obviously impossible for the ground staff on the Chinese side to do it. It can only be opened by the crew member from inside the cockpit before disembarking. Therefore, Qiao Chenqing also had some vague guesses. However, seeing is believing. He gestured in that direction: "Let''s go and have a look." Several people followed Li Dewen''s footsteps and quickly arrived in front of the No. 1 machine shed. Standing at the foot of this Tu-160, Chang Haonan suddenly had a sense of a dream where time and space were intertwined Red24. In the original timeline, this was the first Tu-160 bomber to be completely dismantled. Prior to that, only about 470 hours had been flown in total. But in this life, in a slightly magical way, it was reborn in the great Eastern country thousands of miles away. Including another red 14 with the largest crowd gathering around it. It was the second one that year to be demolished. Flight time is even shorter, only 110 hours Chang Haonan raised his head almost uncontrollably and looked at the nose of the machine that seemed to be several stories high. I didn''t feel it when I was far away before, but now that I''m standing in front of you, I feel like I''m just the same person. big. In fact, Chang Haonan has also seen the Boeing 747 with a larger take-off weight. But the two aircraft feel completely different. If I have to say it, as a strategic bomber, the Tu-160, even though its appearance is slender and elegant enough, can still reveal an indescribable aggressiveness. There was even a moment when Chang Haonan felt it was difficult to breathe. "Several leaders, follow me." Li Dewen turned around and waved his hand, signaling Chang Haonan and others to follow. Immediately afterwards, he walked through the huge magazine door and came directly under the belly magazine. "O-" "Oh My God-" "This is" The moment the magazine came into view, several people exclaimed in different styles - Due to nuclear weapons limitation agreements signed before the collapse of the Soviet Union, all Tu-160s and B1Bs had their external free-fall bomb racks removed. Therefore, these two built-in magazines distributed vertically have become the only places where ammunition can be hung. Moreover, unlike most of its bomber counterparts, the Tu-160 did not even consider carrying traditional bombs in the magazine. There are only two cruise missile rotary launchers that are similar in structure to revolvers. And one of them is now directly above everyone''s heads. Of course, if that''s all it is, there''s nothing shocking about it. What really made everyone exclaim was the "gift" Li Dewen mentioned just now. On this rotating launcher located at the front of the red machine No. 24, there are three cruise missiles hanging neatly! "This is...kh55?" The first person to react was Chang Haonan. In fact, China had obtained the technical information of the kh55 from some channels in the previous life, and finally effectively promoted the research and development of the Changjian 10 cruise missile. However, live ammunition of kh55 has never been obtained. "right." Li Dewen nodded: "And...it can be launched." "wait" Following closely behind was Qiao Chenqing. However, he immediately realized a very serious problem: "Shouldn''t these things be destroyed?" "You got three rounds back...are you sure you won''t be wrong?" "This...Actually, we only found out after we went there." Li Dewen quickly explained: "In the Soviet weapons naming system, the kh55 with nuclear warheads and the kh55 with conventional warheads are assigned two different equipment serial numbers." Qiao Chenqing immediately understood the meaning of this sentence: "So...these missiles are no longer on the destruction list from the beginning?" "That''s right." Li Dewen replied: "Otherwise, we would definitely not dare to bring it back..." For a while, no one answered. There was only the sound of a few people breathing around. It was as if the air was about to freeze. "Go and ask Yan Kun to find a few reliable comrades to take care of the plane." After who knows how long, Qiao Chenqing finally said: "Also, guide the visitors and don''t let them get too close to the two planes on the inside!" (End of chapter) Chapter 951 Remote acupuncture Chapter 951 Remote Acupuncture Bringing back a batch of cruise missiles is actually a big or small matter. To put it mildly, even strategic bombers have been obtained, so these kh55s, which have the same technical level as the Tomahawk, seem to be just an add-on at best. But speaking more broadly... There is nothing trivial about nuclear weapons. After all, Figure 160 is written in black and white on the denuclearization agreement, and no one can find anything wrong with it. But missiles are an extraneous matter after all. Even if you say that the kh55 equipped with nuclear warheads and the kh55 equipped with conventional warheads are two different types of equipment, after all, they cannot be distinguished from each other in terms of appearance and inscriptions on the missile body. As for the incredibly complex serial numbering system of the Soviet Union... Now I am afraid that even the few Mao Zi after the separation of the family can''t figure it out. After all, the fewer people know about it, the better. Thinking of this, Qiao Chenqing waved to Li Dewen, who was about to leave: "Captain Li, wait a moment." "arrive!" The latter immediately stopped and turned to face Qiao Chenqing. "This magazine..." Qiao Chenqing pointed to the top of her head as she spoke: "Can it be closed without starting the plane?" The huge magazine door can actually block all views from the side, and the entire rotating launcher is buried deep inside the aircraft, so unless someone comes to their position directly under the aircraft, they can''t see what''s going on inside. But he still felt that it was safest to close it quietly. "This..." Li Dewen hesitated for a moment: "The range and speed of the several IL-76s used to transport ground equipment are insufficient. In order to ensure flight safety, they will rest in Russia tonight and are not expected to be delivered until tomorrow afternoon..." "Then..." Just when Qiao Chenqing was about to say forget it, Li Dewen suddenly lighted up again: "However, there is a crank handle in the cockpit for emergency use. You can manually close the magazine." Upon hearing this, several people around them almost all looked at the two rather exaggeratedly sized hatches. The effort-saving effect of shaking the handle is ultimately based on the principle of leverage. The effort saved must be recovered from the number of turns. If you want to close these two things, I''m afraid it will take some effort... "Let''s get a few more comrades to come over. It''s safer to close the door." Qiao Chenqing slightly held the cotton hat on his head and said to Li Dewen: "If you work harder these days, I will contact the comrades from the Aerospace Science and Industry Corporation as soon as possible and come over to pick up these rounds. They should be interested." Li Dewen immediately saluted and took the order to leave. Watching his retreating figure, Qiao Chenqing, who was in a good mood, turned around and wanted to pat the open magazine door in excitement. As a result, I had already stretched out my hand and realized that I couldn''t reach it... He had no choice but to punch the front wheel of the plane. This set of actions is a bit funny, but with Qiao Chenqing''s identity there, it''s really hard for everyone to laugh. The situation was a bit awkward for a while. "Ahem" Qiao Chenqing also felt that he had lost his dignity just now, so he coughed twice and quickly changed the topic: "Speak of it, Comrade Haonan." "I just saw that there are a total of three rounds in the magazine. The Third Aerospace Institute should only need one or two rounds at most. Take a look, does your aviation industry system have any demand for them?" Although the aviation power and aviation industry have completed the group restructuring for several years, for the older generation like Qiao Chenqing, they are still used to the past names, and it is difficult to change them for a while. And in fact, since the two parties do not directly compete at the business level, and even mainly cooperate, the relationship is indeed much closer than other pairs of old enemies. "The value of these kh55 rounds is mainly reflected in the overall structure and ballistic control system. As for the aerodynamics and structure... they can only be considered quite satisfactory. For our aviation department... there is nothing worthy of reference." Chang Haonan answered while following Qiao Chenqing towards the No. 3 and No. 4 hangars: "Only the small turbofan engine is a bright spot, but our current problem is not that we don''t have this technology, but that we are short of funds and manpower, so even if we dismantle one or two samples, it won''t have much effect." "but" Originally, he wanted to tell the other party something he had been thinking about for a long time but never had the chance to do. As a result, as soon as he said a transitional conjunction, he was interrupted by Qiao Chenqing who suddenly stopped: "Small turbofan... do you have a ready-made model on hand?" Chang Haonan quickly shook his head: "Having technology and having models are two different things. Right now, the turbofan 10 is in the critical stage of production and finalization. The results of previous training through this project are still settling. It is not suitable to spread the stall too much in a short period of time." "Therefore, in recent years, the group still plans to focus on traction with key models and training the team''s capabilities." Hearing this answer, Qiao Chenqing''s face showed a little regret: "That''s a shame." Chang Haonan didn''t say anything, but looked at the other party curiously. Qiao Chenqing paused for a moment, then started walking again: "At the end of last month, we held a seminar on precision-guided weapons involving the entire military based on the use of weapons and ammunition by the US military in Aiwuhan." "At that time, comrades from the Third Academy of Aerospace Science and Industry told us that in order to ensure the Donghai 10 long-range cruise missile was put into service on schedule, they planned to install the same turbojet engine as the KD63 on it, but the range would be shortened from the original plan of 2,500 kilometers to 1,500 kilometers. "Of course, this should actually be a major concern for the Navy and the Second Artillery. I just heard you mention the small turbofan on the kh55 and suddenly thought of it..." Chang Haonan showed a look of understanding. The so-called Donghai 10 was actually the later Changjian 10. However, China does not yet have the technology to allow cruise missiles to accurately strike ground targets, so it plans to use the same projectile body to roll out a long-range anti-ship missile to deter the aircraft carrier battle group outside the combat radius of the carrier-based aircraft. However, it was quickly discovered that the target of anti-ship missiles is moving warships, and it takes almost an hour for subsonic missiles to fly more than 1,000 kilometers. The problems involving target search and relay guidance cannot be solved either. . So it was settled. "Mr. Qiao, in fact, the small turbofan or turbojet engine used in cruise missiles is one-time use, so the technical difficulty is not really high. The Aerospace Science and Industry Company should also have a certain technical foundation." Chang Haonan thought for a moment and said: "If there is really a need for this, then let them take the lead and we will assist. It won''t take long to modify a turbofan based on the old turbojet." "But to be honest, based on our country''s actual needs, there may not be a qualitative difference between a 1,500-kilometer range and a 2,500-kilometer range. The key technology for cruise missiles, especially land-attack cruise missiles, is mid-course route planning and terminal target screening. and identification. "oh?" After listening to what Chang Haonan said so clearly, Qiao Chenqing also became interested: "Does your aviation power group also conduct research on these?" "Well... Strictly speaking, it''s not our group that does research." Chang Haonan raised his hand and gently touched his chin: "I did some research." The surrounding air seemed to be quiet for a moment. Seeing no one responded, Chang Haonan had no choice but to continue explaining: "When I was doing theoretical derivation before, I accidentally developed a series of algorithms that can be used for classifying and processing image data. I am currently trying to use this as a basis and combine it with some other technologies to complete image segmentation and contour tracking." "If the technology is tested and there are no problems, it should be able to be used as an effective terminal guidance method, which is equivalent to allowing the missile to automatically identify and track targets through images like human eyes." "Combining terrain matching tracking and satellite guidance can improve the final accuracy of the weapon by...well...by an order of magnitude." This time, it''s not just Qiao Chenqing. Others around him also pricked up their ears. It is now the beginning of the 21st century, and a full 10 years have passed since Operation Desert Storm. The myth of precision-guided weapons has been disenchanted, at least within the military. Due to the inherent shortcomings of satellites in altitude measurement, the accuracy of missiles guided solely by GPS or similar means can only be considered unsatisfactory. For now, it can probably reach 20-30 meters. The worse ones may be up to 50 meters. And its also susceptible to interference Especially this point, due to someone''s reasons, has now taken root in almost everyone''s mind. In short, if you want to achieve more refined operations, you need laser guidance or TV guidance. But the former requires something to continuously illuminate the target, and is very significantly affected by weather. The latter is subject to the full human loop, and the limit distance of effective control is only two to three hundred kilometers. Therefore, the matter of "remote acupuncture" is actually not as magical as imagined or promoted by Americans. It''s very difficult. However, Chang Haonan''s words just now attracted everyone''s attention again - What if missiles could identify targets on their own like humans? Wouldn''t that be equivalent to lifting the control distance restriction of TV guidance? Improve the accuracy by one order of magnitude, that is 2-3 meters. In other words, if you are one thousand kilometers away, two thousand kilometers away or even further away, you dont need to take risks to provide any laser irradiation. As long as you have a rough coordinate data and the outline of the target, the missile can be sent to the target. It might be a bit exaggerated to say that it is accurate to one window. But accurate to a floor, or a car... It doesn''t seem entirely impossible. "Can... still have such technology?" Among the crowd, I dont know who asked first. "Well...theoretically it certainly is." Chang Haonan replied firmly: "However, a binary computer cannot completely imitate the operation of the human brain... Of course, in fact, we do not fully understand the operation logic of the human brain..." "In short, the current focus of research is still on processing static images, that is, photos. It may take a long time to recognize dynamic images, especially dynamic images with complex angles..." I dont know if it was an illusion, but when Chang Haonan said this, he seemed to hear someone letting out a sigh of relief... (End of chapter) Chapter 952 aviation culture Chapter 952 Aviation Culture Immediately afterwards, Chang Haonan described to them the related concepts of computer vision, manifold recognition, and level set methods in the simplest language possible. At first, Qiao Chenqing tried to understand. However, he really specializes in the art. After a few words, there was only confusion in his eyes. So, in order to save his ears and brain, he quickly interrupted Chang Haonan, who was already in a state of mind, and changed the topic slightly stiffly: "Comrade Haonan, I remember you just had something to say, right?" Chang Haonan was stunned at first, thinking that I still had a lot of things to say that I haven''t finished yet... Fortunately, he quickly came to his senses and realized that he was not giving a technical seminar. What Qiao Chenqing said should be from the very beginning, when the other party asked him if he needed a kh55 to go back and study. Thinking of this, Chang Haonan scratched his head in embarrassment: "Oh, what I wanted to say at the time was that you can ask the Electronic Technology Group and the aviation industry if they are not interested in this round. If they feel that it is not urgently needed, I would like to keep one with us. The groups side. "Um?" Qiao Chenqing was stunned: "Didn''t you say before that it wouldn''t have much effect..." Obviously, he was confused by Chang Haonan''s somewhat inconsistent words. The latter smiled softly and explained: "Technically it really won''t be of much help, but when external conditions permit in the future, I plan to build a museum and put these things in it, which can be regarded as a testimony to this period of history..." In the previous life, China''s military industry was in a relatively chaotic state from the late 1980s to the early 21st century. Because the organizational structure has changed so drastically, the memories and records of those who have experienced it, let alone outsiders, may not be completely accurate. Many commemorative objects have even been damaged or lost. Against this background, there are still many intellectual errors in various museums and exhibition halls... All in all, it''s very frustrating. Therefore, ever since Lao Wu brought back a piece of the wreckage of a B2 bomber from the Balkans, Chang Haonan has been thinking about how to preserve or even promote this piece of history in the future. After hearing Chang Haonan''s answer, Qiao Chenqing fell into silence for a while - Although he took the initiative to change the topic, the jump in Chang Haonan''s two answers was really a bit too big. It''s like someone was talking to you about mathematics one second, and suddenly started talking about the evolution of species the next second, and then at the speed of light, he talked about God''s creation of Adam and Eve... Finally I had to say: "As expected, he is the chief planner. He thinks about the long term..." At this time, everyone had returned to the crowds near hangars 3 and 4, so it was not suitable to continue talking about the kh55. In the end, everyone really continued chatting along the promotional topic that Chang Haonan started... "Comrade Haonan." A voice suddenly came from another direction. Chang Haonan turned around and found a man with a fat body, a kind face, and a pair of brown-rimmed glasses. Although he couldn''t see his military rank clearly through his cotton coat, he seemed to be about the same age as Qiao Chenqing, and he was obviously a leader of the Air Force. "My name is Jing Yanlong, and I''m in charge of publicity in the Political Department of the Air Force." "Respect the director?" Chang Haonan said almost subconsciously. This slightly rhetorical tone made Jing Yanlong stunned: "Have you heard of me?" His level is certainly not low, but his position is honestly not very impressive. In particular, Chang Haonan is not even a soldier, and he had nothing to do with the Air Force''s publicity business in the past. You shouldn''t even have heard of his name. "Well" Chang Haonan''s face froze, and his brain quickly organized some words: "I heard other leaders mention it before that you are very good at organizing promotional activities and promotional materials..." To be fair, this is by no means a compliment. The reason why Chang Haonan knew the name Jing Yanlong was because the other party had... or would organize the creation of a nationally famous sitcom. "The Story of the Cooking Class". Of course, this drama was released in 2002, so at the moment, Chang Haonans praise still makes Jing Yanlong a little embarrassed: "That''s a big prize, that''s a big prize..." "I want to ask, there is an aviation museum in the CP area on the outskirts of the capital, run by the Air Force. Have you been to it?" Chang Haonan nodded: "When I was in school, I went there on the weekend, but I didn''t go in. I just walked around outside." Then I started working and I had no time. "Yeah... the easiest time is when I''m in school." Hearing him mention things from his school days, Jing Yanlong couldn''t help but smile. However, after just a short moment, he brought the conversation back to the original topic: "But it''s no shame that you didn''t go in. To be honest, there''s really nothing to see in there..." Although Jing Yanlong is only responsible for publicity, he does not protect his shortcomings at all. Or rather, it is precisely because he is in charge of publicity that he knows what the current situation of this part of the work is. "This... is inevitable." When others came up, they chose to lower their stance. Chang Haonan could not say anything more. Instead, he had to help the other person make amends: "After all, the history of our country''s Air Force is still short, and the pressure to change equipment is great. There are very few things that can be put into museums. Your propaganda department is also a clever woman who cannot make a meal without rice." In fact, this is also true. China''s own aviation industry has only been developing for 50 years despite all efforts. There have been at least 30 years of technology transfer and imitation. The new equipment is not even enough for the army, how can it be thrown into a museum to retire? In the previous aviation expo, there was once a J-11 on display that had reached the end of its lifespan. However, it was not on display for long before it was taken away to use its remaining heat... Jing Yanlong, on the other hand, climbed directly up the pole: "So what I just wanted to say is that if you have ideas in this regard, you might as well consider cooperating with our Air Force. Although the aviation museum is a little remote, the internal space is definitely large enough, and the theme is relatively close to the Qin Group. Why bother? Do it again and again...right?" Chang Haonan glanced at the other party''s smiling expression and said to himself, use our exhibits to build your own exhibition hall. This is a wonderful trick of yours... However, complaints are complaints. Jing Yanlong''s idea is indeed correct. There are only so many things that China can exhibit, and now they are scattered among military expos and several military service museums. It would indeed be a waste of resources if each military industrial group develops its own exhibitions. It''s just that he can''t take all the good things. "At least for a long time to come, my main focus will still be on research and development." Chang Haonan changed the subject: "So... I just said it casually. I just have this idea. The problem of the exhibits cannot be solved in a short time. It is too early to think about this..." "If you really want to say it, I have another suggestion..." Jing Yanlong is almost 40 years older than Chang Haonan, so he definitely can''t wait for the latter to take a back seat. But just when I was feeling a little regretful, I suddenly heard Chang Haonan say that he had new suggestions. Therefore, he immediately looked at the other party with questioning eyes. "I still remember the time in 1996 when I participated in a real military aircraft project for the first time. It was the J-8C. The organization secured an opportunity to participate in the Xiangzhou Air Show, and I was fortunate to participate." Chang Haonan replied slowly: "At that time, I felt that there were actually not many people in our country who were interested in aviation, but there were too few relevant resources, and there was no well-guided aviation culture, which led to a somewhat barbaric growth." "I have been thinking over the years that if the propaganda department can use... or even promote the initiative and enthusiasm of this group of private forces, the effect should be much stronger than if we just work hard by ourselves..." (End of chapter) Chapter 953 New air film hole on M883 Chapter 953 New air film hole on M88-3 Almost at the same time that Chang Haonan and others took back the four Tu-160 strategic bombers. Shengjing, the 606th Research Institute of the Aerospace Power Group. Liu Yongquan, who has now been promoted to chief designer and deputy director of the institute, is currently looking at the computer to review the summary of phased issues that have just been submitted by several design and development teams under him. This is a habit he borrowed from Chang Haonan when he participated in the Turbofan 10 project. When the latter is presiding over the project, he will occasionally ask the subordinate design teams to submit problems that were newly discovered in the previous stage or that existed in the past but are still not fully understood, and then solve and deal with them respectively - This does not mean to come up with a conclusion right away, but to give guidance on the direction of the next stage of work. In fact, this is exactly the way Chang Haonan was guided by the system when he carried out projects through the system. Therefore, the improvement of participants'' abilities is almost immediate. As Chang Haonan''s deputy, Liu Yongquan was the one who benefited the most from it. So after I started to take charge of the technical research and development work in the institute, I also adopted similar methods. However, he soon discovered that although this approach, which was close to hand-in-hand teaching, was effective, it required high standards and work intensity for the project leaders themselves. As a result, a lot of rest time, which was not considered ample in the first place, was taken up. "I''ve finished this one too..." Liu Yongquan muttered to himself, moved the mouse, clicked the save button on the screen, and then closed the document: "Then...the last two are left." He glanced at the time in the lower right corner of the computer and began to think about whether he should take a break. At this time, there was a sudden knock on the door outside the office. "Enter!" Liu Yongquan felt a little lucky. Because there is no need to worry anymore. The door opened, and a technician in blue overalls walked in hurriedly. From the corner of the other party''s mouth that couldn''t be suppressed at all, it was not difficult to judge that there should be good news. "Xiao Wan, have you finished the test over there?" The person who came was Wan Zhonghui, a young man who Chang Haonan had unearthed from the grassroots level of the Turbofan 10 project team. Considering that Liu Yongquan was currently responsible for the improvement and research and development of the M88 and SeA series engines, he was given the responsibility to train him. It can be regarded as a way to see the world. Of course, its young people. In fact, he is already in his early thirties. He is older than Chang Haonan. It''s just that he is still young on the normal engineering development path. "That''s right." Wan Zhonghui nodded and put the folder he had been holding under his arm on his desk: "You can take a look at the test results of the new film cooling design of the M88-3 engine." According to the pie drawn for Snecma before, the M88-3 engine should basically reach the performance of the earliest M88-1 model while maintaining the same lifespan and reliability. The top priority is naturally to increase the thrust by 10.5% to a level of about 8.4 tons. The simplest and most direct way to increase thrust is to increase the temperature in front of the turbine. Of course, in addition to this, there are a series of upgrades such as reducing the weight of the receiver, increasing the boost ratio, and reducing fuel consumption. However, considering that the M88-3 will share the same core engine with the SeA series engine used by the Falcon Z, especially the shared hot-end components, in order to improve research and development efficiency, the improvement of the combustion chamber and turbine must be given the highest priority. The test report in front of them is a preliminary test of the results of their work over the past few months. "I think you can guess it like this, and the result must be in line with expectations." As Liu Yongquan spoke, he pulled the folder in front of him and opened it. "The convection heat transfer coefficient along the main stream is similar to that on the turbofan 10..." "The voltage drop level is about 10% higher than the previous test... This is determined by the boost characteristics of M88. This can only be done..." "dynamic viscosity" "Reynolds number..." He held an uncapped ballpoint pen and quickly scanned the contents of the test report line by line. According to Chang Haonan''s requirements, the cooling film hole design of the M88-3 turbine part almost completely copied the turbofan 10. Although the heat dissipation principle will hardly change due to different engine structures, after all, there has been no targeted optimization design, so many performances have still declined. Of course, this is all to be expected. Therefore, Liu Yongquan did not make a fuss. Until you see the last item. "The Nusselt number along the main stream..." The movements of his hands paused involuntarily, and then he made a slightly curious sound. "Um?" This reaction immediately made Wan Zhonghui, who was looking happy, nervous: "Mr. Liu, what''s wrong?" "Well." Liu Yongquan raised his hand and touched his chin: "This Nusselt coefficient seems to be a bit high..." Nusselt coefficient is the ratio of convection heat to conduction heat. This number is on the high side, but the convection heat dissipation coefficient does not change significantly, indicating that the conductive heat dissipation is low. Of course, in the context of aerospace engineering, the Nusselt coefficient is generally at a two- or even three-digit level. Therefore, there will be almost no difference between high and low conductive heat dissipation. Even in most cases, designers do not pay special attention to conductive heat dissipation The ratio is really too low. However, after thinking for a while, Liu Yongquan still pulled off a piece of paper and wrote down this matter. "What if Chang always comes in handy..." He thought this while writing a few words quickly. Wan Zhonghui, who was opposite him, didn''t know what Liu Yongquan was thinking. He only saw that the latter had specially written a note, so he became even more nervous: "Then... do I need to re-..." Liu Yongquan quickly waved his hand: "No, the higher one is within the allowable range. Specific to the project at hand, it will not have any qualitative impact on the heat dissipation effect." As a technician with an engineering background, Liu Yongquan still has a relatively clear understanding of his abilities. It is better to leave things like exploring theoretical principles to people who have expertise in this area. "Then our next step..." Wan Zhonghui''s tense expression relaxed, and his expression turned to joy. During the Turbofan 10 project, he could only be considered a participant at best. But this time, he was at least responsible for a small part of the work. Although not the core content. But at least it''s a good start. The natural next step was to hand over the new turbine design to Snecma. Liu Yongquan replied with a smile: "After all, we only did component-level testing. As for the effect after installation, that is the task of the French themselves." "Furthermore, even if we complete the entire testing process, they will definitely have to do it all over again after they return to China." After all, the French are not Indians, they always have dreams. I had no choice but to come to Hua Xia this time, but it was impossible to just lie down and become a hands-off shopkeeper. While talking, Liu Yongquan leaned his head, ready to take a look at the calendar placed beside the table. However, Wan Zhonghui reacted faster and said immediately: "Today is November 15th, Thursday." "Um" Liu Yongquan leaned back in his chair and pondered for a moment: "In this case, you go back and rest first." He said to Wan Zhonghui: "When will I meet with Snecma''s technical representative specifically? I will let you know then." "good." Wan Zhonghui didn''t doubt his presence, just nodded, turned around and walked out of the office. He also closed the door smoothly. For this test, he had been spinning for nearly 20 hours. After relaxing for a while, he was indeed a little sleepy. And the other side. After confirming that Wan Zhonghui had left, Liu Yongquan immediately grabbed the microphone on the table and made a call to Chang Haonan''s office. Its very similar to the scene when your mentor is asking his master for help The cooling design of the Turbofan 10 is the only part in which Liu Yongquan was not fully involved. From theory to engineering, Chang Haonan was directly responsible for almost everything. Although the latter left behind quite complete technical information, Liu Yongquan still inevitably felt a little guilty. Therefore, he hoped that Chang Haonan could communicate with the technical staff at Snecma. At least sit on the scene. To avoid the dilemma of being unable to answer a question from the other party. However, after the call was connected, the voice that sounded over there was not Haonan''s. According to the line settings, when the group leader does not answer the call, it will automatically be transferred to the corresponding office manager, that is, Zhang Liangping. "Sorry, Mr. Chang is on a business trip. It''s not convenient to answer the phone right now. You can tell me the matter first and let me convey it to you, or you can try calling again another day..." "I''m sorry, Comrade Liu, I don''t have the right to disclose Mr. Chang''s specific itinerary..." After hanging up the phone, Liu Yongquan sighed helplessly. He originally wanted to try to see if he could call Chang Haonan''s cell phone, but he hesitated for a moment after picking up the receiver, and finally put it down. If the other party is on a business trip, even if you contact him, it doesn''t mean much. "well" Liu Yongquan sighed and took out a black leather notebook from the bottom drawer of his desk. "You still have to rely on yourself..." He muttered something under his breath. At the same time, the notebook was opened to a page in the middle. It is densely packed, and almost all of the records are formulas and schematic diagrams. Obviously, this is a research note. Judging from the bookmarks and notes almost everywhere, Liu Yongquan spent a lot of time on this. In fact, this is exactly what he concluded from a technical document on cooling design. Of course, I also received help from Chang Haonan during the process... Looking at the contents of the notebook, Liu Yongquan''s somewhat anxious heart finally calmed down a lot. On the one hand, what Chang Haonan left behind was very comprehensive and really helped him a lot. On the other hand...the other party is a partner after all, not a superior. If it doesn''t work, just use technical secrets as an excuse to have no comment. After figuring this out, Liu Yongquan calmed down, took out a red ballpoint pen from the side, and marked the word "meeting" on the calendar page for next Monday, November 19th... (End of chapter) Chapter 954 The speed of learning cannot keep up wit Chapter 954 The speed of learning cannot keep up with the speed of new knowledge generation the next day. Paris France. Snecma''s technical director Ian Vista is working with his assistant Arthur Mondock on some administrative documents related to the company''s operations. It was already Friday afternoon, and the two of them inevitably felt a little tired Before today, Vesta had led his entire team to work for three full weeks in order to understand and thoroughly understand the M88-2 engine technical information from China. The chores they have now are all accumulated because of this. You know, it is not an easy thing to make the old European Zhengbaiqi work overtime. What''s more, three weeks in a row. Not to mention his subordinates, even Vesta himself felt a little unable to hold on. Fortunately, the process was tortuous, but the result was okay. They have finally mastered all the technical information that the Chinese people have poured over them. In particular, many faults or defects that had no clue before now have relatively complete ideas - From the phenomenon during the test, to the causes, and then to the solutions. Only some of the toughest bones are left, but it seems to be just a matter of time. "Dr. Vesta." Perhaps in order to resist tiredness, Mondoc broke the silence first: "After we finish researching the materials on the M88-2, I hope to take a team of backbones to go to China in person to participate in the next upgrade plan of the M88-3." Upon hearing the assistant''s request, Vesta raised her head, with some approval in her eyes, but she did not respond immediately. Instead, he asked: "Tell me what you think?" Mondoc was not impulsive, so he gave the reason almost without thinking: "Currently, our manpower stationed in China is lacking in both quantity and level. There is no way to effectively participate in the engine improvement project. Essentially, they are only responsible for sending the technical data provided by the Chinese people to our data clerks. "If we continue to maintain this state of affairs, it may be difficult for us to keep up with the Chinese." "Now, we have basically fully understood the key design ideas of the M88-2 engine, and I speculate that on the Chinese side, the upgrade progress of the M88-3 engine should still be at a relatively early stage." "So, if the efficiency is high enough, I think we should be able to keep up with their progress!" Apparently, the work of the past few weeks has made Mondoc feel that he is ready. After listening to his explanation, Vesta sitting opposite smiled: "Actually...that''s exactly what I meant." "What you just said is right, we can''t just be content with following the Chinese." As he spoke, he took off his glasses and gently rubbed both sides of the bridge of his nose: "My plan is to strive to fully keep up with the progress of the Chinese people in the M88-3 project. When the next step is M88-4, even if it is not completed entirely by ourselves, we should put forward a complete solution before the Chinese people. Upgrade technical solutions! Obviously, Vesta also feels that he has done it. The two people who reached an agreement on this matter looked at each other and smiled. It seems that the day will come when France will regain its prominence in the field of jet aviation. However, I want to think back. Vesta, an old man himself, felt a little unable to hold on at this time. So, he stood up and stretched his muscles, then looked at the time. However, there are still about three hours until get off work. "How about...getting off work early?" Vista looked at Mondoc who lowered his head and got busy again, and his mind had already flown to his small manor in the south of France. He hadn''t been there for almost a month due to work. "Arthur, we..." He originally wanted to say that we should get off work directly and come back to work on the remaining work next week. As soon as the words were spoken, the phone on the table rang. To be honest, Vesta hated those calls on Friday afternoons. Especially now. He was already extremely exhausted. And a new phone call will most likely mean a new job... But no matter what, it''s still working time. Vesta had no choice but to answer the phone and put the receiver to her ear: "Hello, Snecma Corporation, Ian Vista." "Dr. Vesta, this is Bernard Shore." After the person on the other end of the phone announced his home address, Vesta, who was originally looking lazy, finally became a little more serious: "Long time no see, Bernard." As he spoke, he sat back on his office chair, then leaned his upper body back on the backrest: "I think...it''s almost late at night over there in China. Is there anything urgent?" Bernard Shore, Snecma''s Liaison Officer in China. He is also the boss of the "documentaries" that Mondoc just mentioned. "That''s right, Dr. Vesta." The voice on the other end of the phone was quite serious: "Liu Yongquan, the project leader on the Chinese side, told me today that they have fully upgraded the film cooling system at the hot end of the M88-3 engine, and have successfully completed component-level performance testing, so I hope to hand it over to you as soon as possible. Work, start installation and testing of new components..." "boom!" In the middle of Shore''s words, Vesta, who had just fallen down on the office chair, jumped up. His movements were so agile that it was impossible to tell that he was an old man in his sixties. "The hot...the hot end has...been upgraded?" At this moment, he felt that his entire mind was filled with questions. On one hand, Vesta was pretty sure she hadn''t heard anything wrong just now. But on the other hand, he couldn''t believe what he heard - The overall plan for upgrading the M88-3 engine was only proposed in early September. It''s only been less than three months? The hot end component...shouldn''t it be the most critical and core part of an engine? For a moment, Vesta was somewhat shaken by his decades of experience in the industry. "Well...that''s what China informed me." Shore replied: "Moreover, I watched their entire testing process and checked the test results, which indeed fully met the design requirements." Vesta opened her mouth, but really didn''t know what to say. As a result, both ends of the phone fell into a somewhat awkward silence. After more than ten long seconds, Xiaoer was the first to lose his composure and called out tentatively: "Dr. Vesta?" Only then did Vesta finally wake up from the blank state of his mind. "Uh... when is the handover time?" He asked almost instinctively. "The best time is next Monday. The other party said that the upgrade time for the hot end is tight, and we hope to complete the actual machine test as soon as possible." "Next Monday" Vesta glanced at the calendar next to her: "Okay, I will go there on time..." "well-" After a long sigh, Vesta put the receiver back on the phone with a somewhat stiff movement. And because Mondoc didn''t hear what was said on the other side of the phone, and because Vesta''s lost look was indeed a bit confusing, he still hadn''t turned around: "Doctor, is this...a call from China?" "right." Vesta nodded, but it was obvious that he was in a depressed mood: "Keeping up with the Chinese people''s progress...I''m afraid it will have to be postponed..." "ah?" Mondoc couldn''t help being stunned after hearing this. He couldn''t even understand the meaning of the other party''s words at the first time. But soon, a possibility appeared in his mind: "You mean...they..." Mondoc had actually guessed what actually happened, but due to the extreme shock, he couldn''t even formulate words quickly, so he had to use hand gestures instead. Fortunately, Vesta was not prepared to understand what the other party meant, but explained directly: "They have completed the design improvement of the hot-end components of the M88-3 engine and want us to prepare for real-machine testing immediately to see if it meets the requirements!" Mondoc''s eyes were almost blank when his guess was confirmed: "But" At this moment, he only felt a little numb. I originally thought that after understanding the situation of M88-2, I could rely on the existing foundation to quickly understand the new technology applied by China on M88-3, and eventually achieve the same progress, or even surpass it. But now it seems... My own learning speed... seems to be a bit behind the pace of new knowledge generation? This is undoubtedly a huge blow to Mondoc, who has always been smooth sailing. After a while, he recovered slightly: "Dr. Vista...I...should I go to China..." According to the previous plan, he went to China to track in real time and even participate in the research and development of the M88-3 engine. As a result, it has now become information learning again... "Go! Of course!" Vesta took a deep breath: "And, this time we both go together!" He said categorically: "I want to see how those Chinese people designed a new air film cooling system in three months..." (End of chapter) Chapter 955 So whats the cost? Chapter 955 So...what''s the price? The weekend passes quickly. November 19th. Shengjing. In a conference room of No. 606 Institute. Ian Vista, who had just gotten off the plane, sat at the conference table with a solemn expression, waiting for the meeting to begin. Even though he was deliberately hiding it, he could still see the obvious tiredness between his brows. For someone of Vesta''s age, a mere two days'' rest before departure was not enough to make up for the fatigue caused by the continuous rotation for the past half month. Moreover, with such a big deal in mind, even though it is a rest, it is actually not a good rest at all. Coupled with the relatively closed environment in the conference room, he even felt like yawning. However, Vesta knew very well that he could never engage in the upcoming talks in this state Although it is just a routine work handover, if you feel dizzy, something will definitely go wrong. He bit the tip of his tongue gently, using the pain to wake himself up a little. However, this alone is obviously not enough. Vesta turned around and looked around at several technicians who were also from Snecma. Including, of course, his deputy, Arthur Mondock. The latter was currently chatting with Bernard Shore, the technician who called Vista a few days ago, and was obviously trying to understand the recent situation. After hesitating for a moment, he decided to join in the conversation to distract himself. "Bernard." As Vesta''s voice sounded, the whispers around him suddenly fell silent: "I remember you said on the phone before that you were fully involved in their testing process?" "Um" Hearing this question, Xiaor scratched his head in embarrassment: "Actually, it doesn''t count as participation..." "The cooperation between those Chinese scientific researchers is quite skillful. We don''t have many opportunities to intervene. At most, we help to debug the equipment. Most of the time... we can only be regarded as watching the whole process..." Snecma''s original intention of sending them to China was to follow the research and development process here and learn something on the way back. In fact, at the beginning, several people, including Shore, felt good about themselves. You know, they are all senior in the company. There are even people who participated in the round of technological cooperation with China in the late 1980s. Now that I have to be a student to my former students, my mentality is naturally still different. According to what Shore and others thought at the time, China should have mastered some tricks specific to CFM56 through some kind of coincidence. As long as they learned it, they would be done. result Its only been two days since the beginning. Strictly speaking, after attending the technical meeting on the first night, Shore was shocked to find that he could not keep up with the other party''s thinking. He even asked a translator to translate the meeting minutes into English. But it still doesn''t work. Soon, he realized that what the Chinese had mastered was not some miraculous skill. Rather, it is a set of almost completely new aero-engine design concepts. Learn, child! Of course it is impossible to learn it so quickly. So, this is the situation now. They only had time to translate the design information provided by the Chinese and send it back to China. As for participating in the design work throughout the process... No one has mentioned it for a long time. Fortunately, Vista is also aware of this actual situation, so it doesnt make it difficult for Shore: "It''s okay to just keep an eye on the whole process. You should have seen the components they used for testing, right?" "Of course." Xiaoer finally breathed a sigh of relief. After all, it would be a bit embarrassing if you dont know everything you ask: "The parts they have completed so far include the turbine discs and turbine blades of all high- and low-pressure turbines. Of course, only 4 blades of the same number have been produced. After all, it is only a component-level test..." He was only halfway through his words when he was interrupted by Vesta: "A considerable part of the Chinese aviation industry standards are borrowed from us. Of course I know this process..." And the voice of these words actually became smaller and smaller as he spoke them. Because at the beginning, Vesta almost instinctively felt that this matter was quite shameful. But mid-sentence it felt wrong. Others have borrowed a bunch of industry standards from you, only to overtake you later... It doesn''t seem like something to be proud of... "Ahem" Vesta had no choice but to cough twice to cover up her embarrassment, and then continued as if nothing happened: "I just want to ask, have you ever paid attention to the specific design of the cooling system?" These contents can actually be seen after getting the design plan later. But on the one hand, Vesta is feeling sleepy, and on the other hand, it is impossible for them to believe whatever others say. There has to be some other information channels as circumstantial evidence, right? "Attention." Shore replied: "From a technical perspective, it is still traditional air film cooling, and does not use new technologies such as impact cooling or double-layer walls. However, the internal characteristics of the air film holes are very complex, with non-standard variable cross-sections, and there are Three-dimensional structure "As for the design process, I..." Vesta waved his hand towards Shore: "It''s enough for you guys to get this information." "If you haven''t kept up with the design stage, you haven''t kept up..." He led a team by himself and spent more than 20 days thoroughly understanding the technical information of the M88-2 engine. Naturally, he could not place any higher demands on his subordinates. However, Shore shook his head: "It''s not that we didn''t keep up, it''s that..." At this point, he paused: "Yes...we didn''t notice that they had a design process..." "What?" Vesta, who was still holding back his tiredness, suddenly stopped feeling sleepy: No design process? "Yes." Shore explained: "The special-shaped air film holes they used should have been designed a long time ago. On the M88-3, the arrangement of the hole locations was just slightly adjusted..." He obviously wanted to say something more. But at this time, the door of the conference room was pushed open. A group of Chinese representatives headed by Liu Yongquan came in one after another from outside. "Sorry to keep you waiting." Liu Yongquan took the initiative to step forward and shook hands with Vesta: On behalf of China Aerospace Power Group, I welcome our partners! After some polite and innocuous exchanges, the two parties, each with their own thoughts but the same goal, sat down at both ends of the conference table. Everyone had a technical document in two languages ??laid out in front of them Just a brief overview of course. Detailed technical documents, even if stored on a hard drive, can fill a lockbox the size of a schoolbag. "Dr. Vesta." While talking, Liu Yongquan turned on the projector on the table: "Now, let me give you a brief introduction to the main design content included in this handover." The representatives from Snecma across the way immediately cheered up and looked at the curtain on the wall on one side of the conference room. When no one was paying attention, Liu Yongquan took out the black leather notebook that he had prepared long ago, and under the cover of the projector host, he spread it out in front of him: "According to the upgrade plan we have agreed upon before, the main improvement of the M88-3 engine is the thrust envelope in the range of altitudes below 10,000 meters and speeds below Mach 0.9..." He first briefly introduced the expected effects after the upgrade is completed, as well as the current upgrade progress, and then got to the point: "In order to optimize thrust without increasing fuel consumption or affecting the cycle life and reliability of the aircraft engine, we redesigned the entire hot end of the M88-3 engine, especially the fuel atomization system and the film cooling system. , to obtain a higher temperature in front of the turbine..." While Liu Yongquan was turning the pages of the PPT, Vesta finally asked the question he wanted to ask the most: "Dr. Liu, less than three months have passed since we first finalized the upgrade route for the M88-3 engine. How can you make such drastic adjustments to the hot end?" Liu Yongquan smiled slightly after hearing this. He was actually prepared for this problem: "First of all, during this period, we concentrated all our technical strength on upgrading hot-end components, so the progress was relatively fast." "After all, the SeA series engines on the Falcon Z project have to share the hot end with the M88-3. The time is tight and the tasks are heavy, so there is no room for any delay." "In addition, I should have mentioned before that in fact, this cooling system, especially the dustpan-shaped three-dimensional air film hole shown on the PPT, is a mature technology that we have been researching for a long time. As long as it is slightly targeted at M88-3 The engine can be adapted to meet the technical needs..." In fact, Liu Yongquan did not tell the truth completely - The cooling system design of the M88-3 is almost completely copied from the turbofan 10. In fact, there is no targeted adaptation... Of course, if you say this, it will be difficult for our friends. After hearing Liu Yongquan''s explanation, Vista also turned his attention to the curtain again. Then, his eyes widened instantly. "this" As Shore said just now. This air film hole design includes gradient cross-section, gradient aperture, three-dimensional structure, internal microstructure of the channel and multi-layer rows, which can be said to have all five poisons. Although the test data marked below is indeed very eye-catching, Vesta is a little afraid to think about how this thing will be mass-produced by then... But at this time, Liu Yongquan started to introduce the advantages and cooling principle of this three-dimensional special-shaped hole again, and Vesta was not easy to interrupt. It wasn''t until almost forty minutes later that the entire introduction came to an end that he finally got a second chance to speak: "Liu..." Vista quickly stopped Liu Yongquan from opening a new PPT: "I would like to ask...according to your design, there are almost 50 groups of air film holes on a single turbine blade, and the internal structure of each air film hole is so...complex." Have you ever considered the issue of production hours? Liu Yongquan raised his head, stared at the frowning Vesta and commented for a while. Then, he let out a vague sigh. "well" "Dr. Vesta, we use the most mature air film cooling technology with the smallest air flow loss. Just by optimizing the air film design, the temperature in front of the turbine is increased by about 110K. This is already the limit of the current technical level. " "If you switch to impingement cooling, you can certainly reduce the structural complexity, but it will lead to increased gas loss, affecting about 3-5% of the full envelope thrust, and reliability will also be affected." "In comparison, it only consumes more working hours now. It shouldn''t be an unacceptable price, right?" (End of chapter) Chapter 956 Samples are provided by us Chapter 956 Samples are provided by us ?Faced with Liu Yongquans explanation, Ian Vista fell silent for a moment. After all, what the former said makes sense. It is necessary to improve performance without reducing reliability, and without increasing costs and man-hours... How can I let you take advantage of all the good things? And compared to the first two, it seems that the third point is indeed a relatively less important thing. After all, the French navy and air force are limited in scale, and they don''t actually need many Rafales. This leads to the fact that in the quotations for the first few batches of products, the shared R&D expenses actually account for the majority, and the production costs are only a small part. Therefore, the increased cost of engine manufacturing is not obviously reflected in the price of the complete machine. Not to mention, the bare metal price of Rafale is almost only about 60% of that of its competitor Typhoon. Even if the price goes up slightly, as long as the performance can keep up, the overall advantage is still great... However. Money, after all, is only one aspect. The world is material. It does not mean that if you have money, engines can grow out of thin air from the production line. The problem again is working hours. As a veteran who has been immersed in the aviation field for most of his life, Vesta naturally does not just talk on paper. On the contrary, he actually came from a factory and has a fairly clear understanding of the production process. For the design currently posted on the PPT, compared to the simple fan-shaped air film hole used on the M88-2, the processing difficulty is not at the same level. It takes at least 3-4 times as long to process each leaf. This is equivalent to a direct increase in production capacity to about 30% of what it was in the past. This still does not take into account the problem of reduced yield caused by complex processing processes. In actual operation, it is not an exaggeration to directly reduce it by an order of magnitude. Of course, if this is only the case with the M88-3 engine, it is not unacceptable. Anyway, the installation target is Guofeng, so the slower it is, the slower it will be. But as Liu Yongquan said just now. In the future, SeA series engines will also use this hot end design. That is the driving force behind Dassaults business jets and even the regional passenger jet product line that may appear in the future. The demand is still slightly larger. Moreover, the civilian aircraft market is an open, at least semi-open, competitive field. If there is really a delay in delivery, it is not something that military planes can just punish themselves with three drinks and get over. Liquidated damages must be at least a big one... For a moment, Vesta was in a tangle. but He soon realized that he seemed to have nothing to worry about Because the design process is now controlled by others. Snecma claims to be a partner, but in fact it doesnt have much say at all. Moreover, when the M88-3 indicator requirements were mentioned before, working hours were not mentioned. At Dassault, there are quite a few Rafale Cs that have already built their airframes and are waiting to be delivered with engines installed. Whether it was from the perspective of the contract or the actual situation, he had no possibility of rejecting this design plan. No choice. If it doesn''t work, we can only consider expanding the scale of the factory. "Mr. Vista." At this moment, the voice from the opposite side finally woke Vesta out of her thoughts. The one who spoke was naturally Liu Yongquan: "Now, we have introduced the main performance of the high and low pressure turbines after the upgrade. Next, in order not to delay the development schedule of these two engines, we hope that you can complete all installations by the end of this year...at the latest by February next year. Testing so that we can start the next phase of design work..." "?" Upon hearing this request, Vesta, who had just barely managed to calm down his mentality, was shocked: "wait wait wait." He quickly stopped Liu Yongquan: "Today is already...November 19th." Vista pointed to the watch on her wrist and said with a ghostly expression: "After we go back, we still have to sort out the information, verify the process, and organize production... We can only conduct testing after the quality has stabilized. And there is a Christmas in the middle. How can we get the test results out in such a short time?" "Well..." In fact, this film cooling solution was proposed by Chang Haonan after all, and it has been tested at the component level, so Liu Yongquan is quite confident. The next step of the design does not really have to wait until the test is completed before it can start. . The reason why I said that just now was just to increase the strength of Snecma. However, Liu Yongquan did forget about Christmas and thought that the end of January was just before the Spring Festival. It''s a bit embarrassing. However, at this critical moment, you must not swallow what you say, and you can only continue to act according to the script: "Then...according to your estimates, when will this round of testing be completed?" In fact, from a technical perspective alone, component installation and testing can also be done directly in China. It''s just that Snecma is the de facto "Party A" after all, and it has to check it, so it specifically stipulates the ownership of each test in the contract. Vista did not respond immediately, but lowered his head and pondered for a moment. "Probably... we can try to complete the entire project by June next year." This answer directly made Liu Yongquan laugh: "Dr. Vesta, let''s not talk about M88-3 for now." "According to Dassault''s plan, the first prototype of Falcon Z will fly for the first time in 2003. If the test of a hot-end component is delayed until June next year, how are you going to ensure that it will be delivered to Dassault before the end of 2003? Provide the SeA650 engine for the first flight? "this" Vista was speechless. When the SeA series engine development plan was finalized, the development work of the hot end was completely handed over to China, so he never expected that the other party would come up with such a complex design. Now that we are facing the construction deadline issue, I am really sweating. And Liu Yongquan is naturally pressing forward step by step: "In addition, if a breach of contract is caused as a result, will Snecma bear the liquidated damages alone?" The atmosphere that was harmonious a few minutes ago suddenly became a little anxious because of this sentence. For a moment, the conference room was quiet and only the sound of Vesta''s slightly heavy breathing could be heard - The old man didn''t get much rest to begin with. He just managed to cheer up before the meeting started. Now that he was so excited, he actually felt a little dizzy. Liu Yongquan, who was sitting across from him, also noticed that Vesta''s body was shaking slightly, and his heart sank suddenly. He thought to himself that I might have made the old gentleman faint because of my excessive firepower just now... Fortunately, the latter quickly opened his eyes again: "The time required for this process from drawing to product is determined by the specific design. The plan you came up with is so complex, so naturally we need to spend longer time preparing for testing. This is normal..." Seeing that everything seemed to be normal in Vista, Liu Yongquan finally breathed a sigh of relief. However, he didn''t dare to use too much force. If the other party is angry to death in China, it will undoubtedly not be a good thing for both parties. Therefore, Liu Yongquan temporarily decided to delete the remaining parts of the script and fast-forward directly to the most visible part: "So be it, Dr. Vesta." He deliberately acted like "I really can''t do anything to you": "We at Huaxia Aviation Industry Group can provide a complete set of finished turbine parts required for installation and testing. You can directly start the testing process after you take them back, and then feedback the results to us." "Of course, in accordance with the agreement, we will still provide production-related process and technical data. If you later want to reorganize production and testing yourself, we will not interfere." Vista frowned slightly. This solution sounds like the best of both worlds. The test itself actually doesn''t take long, and if the samples are readily available, it won''t be difficult to get the results before the end of the year. The development of SeA series engines will also not be affected. As for Snecma''s production, it can proceed as planned, and there is no need to hurry up or slow down in order to match China''s efficiency. But somewhere, he just felt like something was wrong. "So...do you have a ready-made sample?" Vesta decided to confirm a few more details. "No." Liu Yongquan shook his head: We have already used all the previously produced samples during our own testing. Vesta thought to herself, "I''m afraid you''re kidding me. If there''s no ready-made product, wouldn''t we have to re-produce it, which would save the time of process verification?" However, before he could think of what to say, Liu Yongquan had something else to say: "However, we can guarantee to produce a complete set of new samples within ten days, which will give you at least a month." "Considering that this round of testing does not involve the issue of the full life cycle,... one month should be enough." (End of chapter) Chapter 957 The new tricks of the Chinese people Chapter 957 The new tricks of the Chinese people "Ten...ten days?" After Liu Yongquan made this suggestion, not only Ian Vista, but also several other French representatives sitting next to him were shocked. Although they do not have as much experience as the former, they can judge the approximate construction period based on the design drawings alone. But the basic concepts are still there. Things like turbine blades are produced in batches. Although the time spent in a batch of 200 pieces and a batch of 20 pieces cannot be said to be exactly the same, it is certainly not 10 times the same. Therefore, even if you only produce a few dozen pieces that need to be tested, plus the turbine disk, the time spent should be calculated on a monthly basis. Considering that this is a brand-new product, it is still in the production capacity ramping stage, and it is not unusual to use it for two or three months. This statement is 10 days, which is really outrageous. "That''s right." Liu Yongquan nodded, showing a confident expression: "Before the end of November, we will definitely deliver the test samples to you with high quality and quantity!" At this point, the French were completely speechless Others are even responsible for preparing the samples. You only need to go back and go through the process to test it and then sign it, and then the next stage of research and development can be started smoothly. This is not about putting food in your mouth. Instead, put it directly into your mouth. Only the "chewing" action remains for them to complete. If this still goes wrong, Snecma won''t have to worry about M88-3 and SeA650. Just go back and tidy up, find a French stick and beat yourself to death. From now on, I will sit at the same table with Indians in the international arms market. Therefore, although there was still a question mark in Liu Yongquan''s mind about the "ten-day" cycle, Vesta really couldn''t dwell on it anymore. So, after another non-nutritious ramble, the meeting finally came to an end. But Vista came in person on this trip because he wanted to clear up some doubts. As a result, after the meeting, the previous doubts were indeed solved. But there are more new doubts... And he was obviously not the only one who had the same idea... In the car returning to his residence, Arthur Mondock specially sat next to Vesta: "Doctor, is the 10 days they gave you really okay?" "Um" The latter was leaning on the back of the seat. He was obviously exhausted to a certain extent, but he still thought for a while and replied: "I can''t say." Vista shook his head: "It cannot be ruled out that the other party prepared a second set of samples in advance, and then specifically said it would take 10 days to prepare a new one, which caused us to misjudge their production efficiency." "You know, the production of hot-end components is the most profitable part of the entire aerospace industry chain. It is very likely that the Chinese people want to use this method to get these orders." It should be said that Vesta''s guess is relatively accurate. This is indeed Chang Haonan''s ultimate goal. However, in the face of a conspiracy, it is meaningless to just guess the other party''s purpose. "Dr. Vesta, Dr. Mondoc." At this time, Bernard Sean, who was sitting behind the two of them, also came up: "With all due respect, based on what I''ve observed, I think... what they said is very likely to be true." Hearing someone raising different opinions, Mondoc immediately turned his head: "Have you... seen their production process?" The R&D agreement signed by both parties does not involve specific production parts. Therefore, even if Sean cannot participate, he can still rely on the design and testing process, and the Chinese people can''t say anything. But during the production process, the other party could openly refuse to let Sean have contact. "That''s not true." Sure enough, Sean shook his head: "But I have had access to relevant documents about the first batch of samples they used for testing." One sentence even made Vesta, who was already drowsy, suddenly open his eyes. After a short pause, Sean continued: "It wasn''t until the 15th of last month that the design team on the Chinese side issued the formal production requirements for the first time, and it has only been a month since it was fully calculated." "Considering that there is about half a month spent on component testing, their first production will only take half a month at most. If we exclude the time for equipment debugging and process parameter testing, 10 days...I think there may still be some room left." This clear answer made the atmosphere a little cold for a while. Mondoc originally believed that China had used some small tricks, but after listening to Sean''s analysis, his mind finally calmed down - As the latter said. There is no way the first samples used for testing are fake. No matter how you calculate it, it only takes two and a half months from signing the upgrade agreement to coming up with a mature heat dissipation design. Of course, the Chinese certainly did not start preparing for the upgrade after reaching an agreement. But even so, time is still tight. It is impossible to give the Chinese people a month or even a few months to slowly organize production. "That is to say..." Mondoc''s face gradually became solemn: "Do the Chinese really have some kind of processing technology that we haven''t mastered yet?" In just over a year...or even since China first publicly displayed that mysterious third-generation engine in 1999, in more than two years, almost their entire worldview has been reshaped by the Chinese people. At first, everyone just thought that the Chinese people had mastered some technical information of the AL31F or F110 through some means, and combined with their previous technical accumulation on the second-generation engine, they came up with a usable third-generation engine. In fact, the reason why Snecma came to Huaxia in the first place was because he believed in this statement with the mentality of treating a dead horse as a living horse doctor. However, they soon discovered that the Chinese people had their own set of things in the entire aviation design level, and they did not just use other people''s plans and simply modify them. This led to the cooperation between the M88-3 and SeA series engines. However, the abilities of these Chinese people seem to go beyond that... You can always come up with new tricks for me.jpg "I have a feeling." Through the car window, Vesta looked at the sunset gradually setting on the horizon, with a little loneliness in his eyes: "The Chinese people may soon completely surpass us in the field of aviation development..." Mondoc next to him frowned slightly, as if he was unwilling to hear such a judgment: "That''s not necessarily the case." "At least they have large bypass ratio turbofans, as well as turboprops and turboshafts that output shaft power..." But before he could finish speaking, he was interrupted by Vesta waving his hand: "There''s no point in saying that." "The Chinese aircraft engine model is indeed still very imperfect, but this is because they are developing too fast, so fast that they have already developed without having time to accumulate enough experience, manpower, funds, market, etc. Developed sufficiently advanced technology. "But having said that, the aviation manufacturing industry is an industry that relies on technology after all. As long as they have the technology, the first few things will only happen sooner or later..." As an old man who has experienced the golden age of the French aviation industry, Vesta sees it very clearly at this critical moment: "Now, we, and perhaps the Russians as well, have by chance been the first to realize the terrifying development speed of the Chinese, so we have gained some advantages in cooperation." "But it is impossible for other people to remain blind like this forever, so I judge that the Chinese will soon make a new wave in the world..." Although it may sound harsh, everyone in the car understood that Vesta''s judgment should be correct. "But if the Chinese people continue to develop at this rate, will they be suppressed by the Americans like we were back then?" Sean, who was behind the two of them, suddenly stepped in and asked: "After all, Boeing''s share of China''s and even the world''s aviation market is rapidly shrinking, and if the Chinese people also jump in and prepare to get a piece of the pie, their lives will probably be even more difficult." "In the long run, that''s definitely what it will be." Vesta replied almost without thinking: "In fact, in the first few months of this year, the United States had very clearly made moves against China. However, before it could be launched, the plan was disrupted by the attack." "Chinese people are not stupid either. They know what to do when, so they are very flexible this time." "In the next few years, when more people in the United States make money from the Chinese market, if they want to target China, I''m afraid they will have to wait until the day when China truly threatens them..." This judgment made several people around him fall into silence for a while. "Then let''s..." After a while, Mondoc asked hesitantly. "As long as the European Union is here, there is nothing to worry about." Vesta closed her eyes again, preparing to rest for a while before returning to her residence: "At least in the foreseeable future, the Chinese people will have far less negative impact on us than on the United States, so the faster they develop, the more they can help us share the attention of the United States." "On the other hand, if the EU is gone, there is no need to worry..." (End of chapter) Chapter 958 How to identify an aircraft carrier? Chapter 958 How to identify an aircraft carrier? Naturally, it was impossible for the delegation from Snecma to wait in Shengjing for ten days. As for the idea of ??further cooperation, although there is one, it is impossible to decide on the spot. Therefore, after agreeing on some details the next day, Ian Vista and other core members of the technical team returned to France. Only a few people were left, and together with Bernard Sean and the others, they were waiting for China to officially deliver the batch of samples for testing. Liu Yongquan, on the other hand, reported the meeting status and of course the new production needs to the group level as quickly as possible - The technical team of Haojing Institute of Optics and Mechanics has successfully assembled the first ultra-short laser processing equipment for mass production at Liming Factory. However, it is still in the process of debugging and testing and will not have the ability to actually put into production before the end of the year. . Therefore, at least for now, this batch of M88-3 parts still have to be handed over to the machine in the Torch Laboratory for hole making operations. However, since the technology development phase has been basically completed, including the fact that even the parts of the M88-3 are not produced for the first time, Chang Haonan only needs to handle it. The specific work at the software and hardware level can be completed by Li Yabo and Academician Hou. Of course, this is not because Chang Haonan deliberately wanted to be a hands-off shopkeeper. Although he is no longer interested in the M88-3 project, the SeA series engine, as the first medium or higher bypass ratio engine launched by the Aviation Industry Group, is still very worthy of attention. In fact, Chang Haonan even planned to use the development of SeA650 as a training and production before the official establishment of the WS20 project, so he specially invited many members from the Haofa Group to participate. The reason why he had no time to pay attention to the situation at the Aerospace Science and Technology Group was because after returning from watching Tu 160 in Haojing last Friday, he only had time to rest for a day before he received a call from the Aerospace Technology Group. Invite him to a project development meeting. As for the content of the meeting, it was naturally about the onboard software of the Haiyang-1 satellite. It was also a coincidence that Chang Haonan happened to have some new ideas in target contour recognition while developing new algorithms for the TORC Multiphysics software in the past few months. Therefore, he spent the next period of time carefully preparing for this matter. It was almost at the same time that Vesta and others boarded the plane to return to France. Chang Haonan is in his laboratory, giving a speech to a group of technicians from the Institute of Space Technology, the Fifth Aerospace Institute... lecture. That''s right. Similar to most of the projects he has participated in in the past. During the project development meeting, Chang Haonan introduced his contour target extraction model in the shortest possible length. But in an environment like a conference room, relying on him to speak alone would obviously not be effective enough. Besides, there were also experts in rocket technology who were in the pure hardware field and had nothing to do with satellites participating in that conference. It was not easy for him to bring everyone together to listen to his long speech. Therefore, after Chang Haonan realized the problem, he immediately chose to give up. Then find some people related to software development and software and hardware adaptation, and hold a small meeting. "Mr. Chang, the parametric active contour model (snake model) you mentioned yesterday has been systematically demonstrated by our institute in the past two years." The speaker was a young technician named Lin Shenming sitting at the head of the left side of the conference table: "But in the end, it was found that although the snake model can provide smooth and closed edge contours that meet pixel requirements, it cannot adaptively control changes in the curve topology, and it is difficult to clearly segment the concave areas of the target object, which is very difficult for ships... uh It is a big problem for ocean feature target recognition. Although he is only in his thirties, Lin Shenming is actually the deputy chief designer of the Haiyang-1 satellite ground application system. If it were not for Chang Haonan who was standing at the front at this time, he would obviously be one of the most dazzling young talents in the entire Ocean One project. Of course, his current problem does not involve any personal emotions. I just have some concerns about the technical route of the active contour model. Although Ocean 1 has solved the hardware problems and can even be said to have acquired the world''s first-class optical system, it is still active in low-Earth orbit at an altitude of 400 kilometers, and the photos taken are still blurry after being enlarged. Therefore, it is extremely important to accurately identify specific contours from a bunch of vague chaotic targets. The prerequisite for identifying contours is to segment the contour shape from a blue or black background. If Haiyang-1 is just a conventional marine resource satellite as the name suggests, then it would not be a big deal if it could not divide the concave area, that is, the area where the internal angle is greater than 180. But as a de facto ocean surveillance verification star, this problem is completely unacceptable. Aircraft carriers are huge, thats true. But in the ranks of civilian ships, there is no shortage of giants that are close to or even exceed the size of aircraft carriers. The biggest feature of an aircraft carrierthe all-access deck, from the perspective of satellite observation, is similar to the vast front deck of some civilian transport ships. Even a container ship filled with containers can easily be misjudged. As a result, there are only two features that can be easily exploited. First, move to the ship island on one side. Except for warships such as aircraft carriers and amphibious assault ships that require aircraft carriers, no other ships will use this bizarre design. Civilian ships will set the cab as close to the front or rear end of the hull as possible. But the problem is that the ship island is indeed a bit too small. In particular, nuclear-powered aircraft carriers do not need flues and can make the ship island very small and very far back. And it also highly overlaps with the deck part. Whether it is radar, visible light or infrared light, it is difficult to identify if the resolution is insufficient. In contrast, another feature, the irregular hull contour formed by the combination of the angled deck and the take-off deck, is more friendly. For the sake of floor area ratio, it is impossible for civilian ships to design such a slender shape. Even small and medium-sized aircraft carriers without angled decks and amphibious assault ships can be excluded to a certain extent. And more importantly, an outline of 300 meters long and 40 meters wide is still barely segmentable with current satellite resolution. Therefore, it is necessary to solve the problem of recessed area recognition rate. Otherwise, if we just divide the angled deck into rounded arcs, it would be almost like an oil tanker, with no features left at all. "Mr. Lin is right." Chang Haonan strolled to the blackboard: "Several traditional active contour models are difficult to be directly applied to our Ocean One image recognition algorithm." "But when I was writing a paper before, I accidentally saw an idea, which is to use the variational level set method to improve the active contour model." So far, the main product of this idea is the geometric active contour model, and further, the geodesic active contour model developed by segmenting the variational level set method using the Mumford-Shah functional. "Of course, since the level set method has suffered from non-conservation problems in the past, the adaptability of these two methods in the face of changes in the curve topology is still limited." "However, if you have read my previous article published in the first issue of JCAS, you will know that I have solved this problem from a theoretical level..." After finishing speaking, Chang Haonan wrote the first equation on the blackboard: p(F)=e^(-E|F|)/Z. At this moment, another person raised his hand: "Mr. Chang, I have read most of the texts in the first issue of JCAS, but if I remember correctly, the article you published seems to be used for multiphase flow simulation?" "Yes." Chang Haonan happened to finish writing the equation at this time, so he turned around and replied: "But things at the level of mathematical principles remain the same." The difficulty of multiphase flow simulation is also that the topology of the phase interface is highly uncertain, so the moving interface needs to be described as a level set that changes with time. "Therefore, this method can be applied to the curve evolution of partial differential equations with almost no modifications." After finishing speaking, he pointed to the blackboard again: "This is the Bayesian form corresponding to Gibbs'' formula in statistical mechanics, and the variational method I just mentioned happens to be exactly consistent with it in form..." "The image processing method based on partial differential equations is essentially based on the continuous mathematical model of the image. It is assumed that the image changes following a specified partial differential equation, and the solution of PDE is the desired processing result." "As to how to determine the form of this formulated partial differential equation..." Chang Haonan said while drawing an arrow between "image change" and "partial differential equation": "Generally speaking, it is to compare the desired image change with some mathematical physical process, such as analogizing the smoothing of the image to the diffusion process of impurities. Of course, most processing methods will not be so simple, which is why Issues we need to study at this stage. "As far as my current research progress is concerned, as long as I can get to this point." He circled the words "partial differential equations" again: The subsequent numerical solution process is almost not a problem! (End of chapter) Chapter 959 Target contour recognition Chapter 959 Target Contour Recognition ??Nowadays, in terms of solving partial differential equations, if Chang Haonan says that there is no problem, then at least in China, it is unlikely that anyone will easily jump out to question this conclusion. Therefore, everyone basically agreed that their next step was to find the correspondence between image processing methods and specific partial differential equations. However, for a real ocean surveillance system...or for the entire image recognition and processing technology, this is still only the first step. Even the first action in the first step Even as far as the "image segmentation" link is concerned, there are still other needs that need to be solved. Of course, the ideas given by Chang Haonan are indeed novel enough. So soon someone started to draw inferences: Mr. Chang, if a single level set function can divide the image into the background area and the target area, that is, a two-phase segmentation, then if we use multiple level set functions at the same time, can we complete the multi-phase image segmentation? segmentation?" "In theory, of course." Chang Haonan replied: When an image contains a lot of information and cannot be simply divided into two parts: target and background, it is necessary to consider the multi-phase variation level set problem. "However, the complexity of polyphase problems goes to a higher level." After he finished speaking, he turned back and drew a square on the blackboard. "We can simply think that each level set equation delimits an area in the image, which is this square." "When there is only one square, the image will be, and will only be, divided into two parts: inner and outer. There is no second division." "but." Chang Haonan drew a second square on the blackboard and marked 1 and 2 respectively on the two figures: "When the second square appears, there is not one more variable, but two more variables, that is, the second square itself, and the positional relationship between the two squares." "If the two squares do not overlap, then the entire image will be divided into three areas, namely inside No. 1, inside No. 2, and outside No. 1 and No. 2." "And if two squares overlap, then the entire image will be divided into four areas, No. 1 inside and No. 2 outside, No. 1 outside No. 2 inside, No. 1 inside No. 2 inside, and No. 1 outside No. 2 outside..." Actually, when we set multiple level set functions to divide an image, the image can be divided into 2^N areas at most, and N areas at least, so the difficulty of classification is not the same. Its not a straight rise, its an exponential rise If this part of the content is described in mathematical language, it is actually quite complicated, but Chang Haonan explains it completely in vernacular, which makes it easy to understand. "so" The person who just asked the question also understood: "We still need to specify a level set design plan before we can specifically complete the regional division of the polyphase diagram?" "That''s right, but it''s not complete either." Chang Haonan threw the last small piece of chalk into the chalk box next to him: It seems like there is just one more degree of freedom in the software design logic, but in fact, in addition to the extreme case of dividing it into N or 2^N areas, additional constraints must be added, and the amount of calculation is always relatively large. frightening." "Even the simplest polyphase image segmentation, which is the use of two level set functions to divide four regions just mentioned, will also have four local grayscale fitting functions, and then use the variational level set method to minimize the total energy spread Function, this process requires solving 8 Euler-Lagrange equations, you can figure out more complex situations by yourself..." "In addition, the probability of capturing two high-value specific targets in one photo is very low. Even if this happens by chance, as long as any one of them can be identified and the image is correctly classified as a key point and sent back to On the ground, the effect is the same. After all, we still have ground analysts and military commanders who dont just rely on the information provided by satellites to fight the war. While Chang Haonan was speaking, he briefly wrote on the blackboard the solution results of the fitting function and the average gray value in the classic case. Obviously, unless the situation is very coincidental, such a process must not be suitable for completion on a spaceborne computer, at least within the next few years. "So, this aspect will not be the focus of our research for the time being?" Lin Senming put down the pen in his hand and moved his wrist slightly and asked. "Not necessarily." Chang Haonan wiped his hands and sat back at the head of the conference table: "If the stability of the equation is relatively good, then the semi-implicit difference scheme can actually be used for numerical solution. Apart from the extremely long time consumption, there is actually no other obstacle..." "In short, I have ready-made theoretical ideas and calculation tools. If Mr. Lin has enough funds, computing power and manpower, I can ask Teacher Yao Mengna from our laboratory to be responsible for connecting with you in detail." "Although the satellite terminal cannot do this, there is still some value in post-processing the returned images on the ground terminal." "In addition, the field of view can be broadened. This type of technology does not necessarily have to be used on satellites. Aircraft, ships and even vehicle platforms can support much more computing power than satellites. They can be used in the future. Benefiting from it, this is not counting the potential in the civilian field..." Although Lin Senming was one of Chang Haonan''s deputies in the Ocean 1 satellite project, the former was from the Aerospace Science and Technology Group after all, and there was actually no organizational relationship between the two parties. Therefore, Chang Haonan could only induce him by drawing cakes. The main reason is that his own energy and resources at hand are always limited. It is better to take advantage of this opportunity to give full play to the ability of the non-staff deputy director of the Science and Technology Commission and mobilize the subjective initiative of the units at the same level. In this way, when building a strategic reconnaissance aircraft or other similar needs arise in the future, you will have a ready-to-use shelf product. The research and development cycle can be greatly shortened. "This... I will report it to my superiors when I get back." Since it is not directly related to Ocean One, it is naturally impossible for Lin Senming to admit it right away. But it was not difficult to guess from the almost glaring look in his eyes that he was actually quite interested in it. As for "reporting to superiors". It''s just a classic tactic of delaying the attack. "Comrades, if there are no other questions." Chang Haonan said as he opened his laptop and connected it to the projector on the side: "Then next, I will introduce the mathematical principles of the variational level set model in detail from a theoretical level..." There are basically no contestants who can sit in this conference room who have no idea about the field of image recognition and processing. Therefore, Chang Haonan can skip the introduction of several common image segmentation models to a certain extent. However, he was still unable to finish all the content he had planned in advance on the same day. The two main contents are the curve evolution theory and the variational level set method, which are indeed somewhat difficult to understand. Especially for some technicians with engineering backgrounds, it is even more abstract to the extreme. Fortunately, the most important person, Lin Senming, majored in applied mathematics, but he followed Chang Haonan''s ideas throughout the process. Even so, this meeting... or rather a series of meetings, lasted for four full days and did not finally end until Friday. And just this week, another thing closely related to Chang Haonan was happening simultaneously without him knowing it at all... (End of chapter) Chapter 960 Do you have to rush to be nominated for Chapter 960: Do you have to rush to be nominated for academician? ?During the time when Chang Haonan was concentrating on the variational level set method, a major event happened in the Chinese scientific research circle. The list of new academicians for 2001 is officially released. This is the first time that China has systematically and normatively synchronized the process of co-opting academicians of the two houses of Congress. Of course, considering that the Chinese Academy of Engineering was only established in 1993, it has not been ten years old yet. Therefore, in order to fill up the quota, the number of additional candidates every year must be slightly higher than next door. For example, this year, there are 56 people in the Academy of Sciences and 81 people in the Academy of Engineering. 137 new academicians may seem like a lot, but after they are spread among universities and scientific research institutions across the country... That''s really pitiful. You should know that even after this co-election, the total number of academicians of the two houses of Congress is still only 653 and 616 respectively. There are also many people here who have long withdrawn from the front line of scientific research and only exist as benchmarks and monuments. Therefore, if any school or unit can produce an academician, it will not only add glory to the appearance, but also actually change the fate of the person. Correspondingly, if there are no academicians, or if new academicians cannot be elected for a long time, or if the succession of academicians fails and the number of academicians decreases instead of increasing, then it is inevitable that they will be dwarfed in front of their peers. The Aerospace Power Group is currently in such a situation. Such a large state-owned enterprise does not even have a single academician in its official archives. In fact, logically speaking, Liu Zhenxiang, as the former director of Institute 624, should be considered a member of the Aviation Power Group. However, after the completion of the SB101 high-altitude platform, due to a certain person''s relationship, he transferred his organizational relationship back to Beihang University and became a professor. At that time, it was still the period of the Aviation Industry Corporation. Although the 624th Institute was definitely not willing, for the senior leaders, considering Liu Zhenxiangs own wishes and the fact that there was no shortage of academicians in the entire aviation industry system, they finally gave him the opportunity. Let go. In the end, it didnt matter. After a few years, the two parties separated, and the Aerospace Power Group was immediately dumbfounded - In the past, all the academicians of the head office were from the aviation industry, but I didn''t get involved in any of them. At this moment, Dr. Liu Zhenxiang was about to bring out the first batch, and he wanted to transfer their files back to Institute 624... How about playing? Not realistic at all. Of course, at the beginning of the century, it was not uncommon for dual or even multiple academician appointments (that is, one academician held formal positions in several units at the same time). But the Aerospace Power Group cannot afford to lose this person. Would rather not. In fact, from this perspective, Chang Haonan himself dug a hole for his new club. But no matter what, the problem always has to be solved. Then there is only one way left to co-opt. Whats the result? Needless to say, that time in 1999 was not long after the head office was established, the organizational situation had just stabilized, and no nomination was even mentioned. This year, although Yan Zhongcheng and Jiang Hefu were shortlisted, they still failed to reach the end. The reasons for this are of course more complicated. On the one hand, it is impossible for any circle to be without human feelings and sophistication. Objectively speaking, the situation of big academicians giving birth to small academicians does exist. Units without academicians will be at a greater disadvantage. On the other hand, the situation of the Aerospace Power Group is indeed a bit embarrassing. The establishment time is too short. China''s aviation development level has indeed made great progress in recent years, but after all, the previous achievements were accumulated during the head office period. After the establishment of the new group, it is true that there is still no model that is completely settled and influential enough. You cant use the turbojet 6D to make the selection, right? As for Chang Haonan''s proof of Poincar''s conjecture... Sorry, that result was published with Beijing University of Science and Technology as the unit. The reason why the other party did not nominate Chang Haonan this time is obviously to wait until next year''s International Congress of Mathematicians has awarded all the awards that should be awarded, and then nominate again in 2003. By the time Chang Haonan has the qualifications, a solid reputation, and a young age, he can 100% guarantee the success of his attack. Originally, this was almost a clear sign, and everyone was waiting for it tacitly. However, for the Aerospace Power Group, the situation is more embarrassing. If their first academician is actually nominated by someone else... Well, let''s not say it''s embarrassing, at least it''s a little short of glorious. It is also easy to chill the people below. So, something has to be done anyway. Lin Zuoming, for this reason, approached General Manager Zhu Linyu. "Mr. Zhu, if we continue like this step by step, I estimate that within 6-8 years, our group will not be able to successfully nominate an academician." There were no outsiders in the office, so the former didnt say anything formal, but went straight to the point: "So I think that next time, which is the co-election in 2003, we need to recommend Comrade Haonan as a candidate." Faced with this request, Zhu Linyu''s first reaction was confusion: "Let''s talk behind closed doors. Xiao Chang''s academician quota in 2003...isn''t said to be a certainty, it''s pretty close to him, right?" "Even if we recommend, it will only be ranked behind Beijing Hang University, and it still won''t have any actual effect?" Of course, joint recommendation is feasible, but only the first recommending unit/recommender will be given special attention. In fact, Zhu Linyu thought about recommending Chang Haonan this year, but the chief engineer of the turbojet 14 and QC130 is Yan Zhongcheng after all. Although the turbofan 10 is the top priority, it has not yet completed the final production and finalization process. . So I finally chose the latter. As for Jiang Hefu... he just ran with him. Unless Liu Zhenxiang passed away and left no direct disciples in Jinghang, it was destined not to be his turn. In fact, when the group was first established, Zhu Linyu was not too anxious. Logically speaking, as long as the research and development of the Turbofan 10 project is completely completed, it should be logical to recommend Chang Haonan. Who would have thought that he quietly worked out a ruthless job that shocked the world of mathematics, so much so that he even covered up his achievements in the field of aerospace engineering. However, since Lin Zuoming made this special trip, he had naturally considered these issues. After hearing Zhu Linyu''s rhetorical question, he couldn''t help but smile: "If recommended to the Academy of Sciences, the priority will definitely be lower than that of Beijing Hang University." Having said this, he leaned forward slightly with his upper body, stretched out **** and tapped the table: "But Mr. Zhu, what if...we recommend him to the Academy of Engineering?" Zhu Linyu''s eyes instantly narrowed, with a surprised expression on his face. But it was fleeting. Although no specific response was given, it was obvious that this was an attractive proposition. Seeing the leader''s interested attitude, Lin Zuoming felt relieved and quickly struck while the iron was hot: "According to the current progress, no matter how much excess is left, the turbofan 10 will definitely be produced in the first half of next year. This matter is not only in the aviation field, but also in the entire Chinese manufacturing industry. It is a milestone level event. By then Dont say you cant be elected, even if the voting result is not unanimous, there is a shady secret..." Zhu Linyu quickly raised his hand to interrupt: "Of course what you said is correct, but..." For a moment, he didn''t know what to say. In fact, what Lin Zuoming said was exactly what Zhu Linyu thought back then. But now anyone who knows something about the inside story almost all regards Chang Haonan as a half-step academician of the Department of Mathematics and Physics of the Chinese Academy of Sciences. If we push people to the Engineering Academy again, it seems that there will be no results. In fact, Lin Zuoming didn''t need him to explain clearly: "Mr. Zhu, are you worried about the Mathematical Physics Department?" "Don''t you know that..." Zhu Linyu nodded helplessly. Although the two academies are tied, even from the perspective of disciplinary contempt, the status of the Academy of Sciences is still slightly higher than that of the Academy of Engineering. It is hard to believe that a person who is almost certain to become an academician of the Academy of Sciences would take the initiative to choose the Academy of Engineering. However, Lin Zuoming almost completely let himself go: "That doesn''t matter. Can''t we just ask them to co-opt Comrade Haonan into the group at the same time?" In one sentence, Zhu Linyu''s brain was completely shut down. After a few minutes, I finally recovered from the confusion in my mind: "It''s not you who wait a minute..." He frowned slightly: "It is true that our country has 40 double academicians, but that was when the Academy of Engineering was established. In order to increase the influence and persuasiveness of this new institution, we specially found senior academic seniors to join the Academy of Engineering." "In other words, it is not that they need the title of the Academy of Engineering to prove their contribution, but that the Academy of Engineering needs to prove that it is not a grassroots team by granting them the title... And in principle, except for the 94-95 batch, those who have been elected as academicians of the Academy of Sciences or the Academy of Engineering , then he will no longer participate in the election of another house..." Unexpectedly, Lin Zuoming clapped his hands excitedly: "Yes!" "You see, although Comrade Haonan''s qualifications are not sufficient, but only looking at the contributions he has made, which are both theoretical and applied, and are at the forefront of the country and even the world, this is not the same as those of the old predecessors. The nature is the same. If the Academy of Engineering doesnt give me a title, how can I convince the public? "In addition, you also said that ''those who have been elected as academicians of the Academy of Sciences or the Academy of Engineering'' cannot participate in the selection of the other academy. However, as long as Comrade Haonan participated in the co-election of both parties in 2003 and was elected at the same time, he would not trigger the This is a matter of principle..." Obviously, Lin Zuoming''s proposal was taking advantage of a loophole. But objectively speaking, it is true that Chang Haonan''s situation is so unfavorable that he is able to take advantage of this loophole. Zhu Linyu put his arms on the table, crossed his hands to cover the side of his face, and lowered his head slightly so that people could not see his expression clearly. On the surface, it seems to be judging the success rate of this plan. But only he knew in his heart that he had actually been convinced. I just hope that I can agree to be more reserved. After all, as the leader of the unit, it may not be a good phenomenon to listen to what others say. "if it is like this." After a while, Zhu Linyu finally spoke again: "Then we will start from next year to help Xiao Chang prepare for this." "For example...um..." Having said this, he thought for a moment: Its a pity that the application for this years National Science and Technology Award has already passed. "Next year, next year we can apply for him for the newly established highest science and technology award, in the name of Turbofan 10!" (End of chapter) Chapter 961 "Pre-production" J-10A Chapter 961 "Pre-production" J-10A ?After the week-long technical meeting was finalized, the research and development of Ocean Ones onboard software gradually got on track. Including Lin Senming''s actions were completely consistent with Chang Haonan''s prediction In just a few days, he pulled up a small team from the Fifth Aerospace Academy that was independent of the Ocean One project team and was responsible for cooperating with the Torch Laboratory to develop multi-phase diagram segmentation technology. Or strictly speaking, pre-research. Although in this timeline, China is already a lot more generous in terms of scientific research funding, after all, it is 2001 and not 2021. Unless a topic is of critical importance, the resources that can be allocated are always relatively limited. Therefore, for technologies such as polyphase image segmentation that are obviously going to compete in the future, the usual practice is to set up a project first and promote it in the name of pre-research. When a big project related to it appears, we will wait for the right opportunity to get involved and formally establish the project. . Although it seems to be just a roundabout way, it can often obtain several times or even an order of magnitude more funding. And because it involves key projects, the impact of completing the same research content will be completely different. As for the Torch Laboratory, Yao Mengna was sent for docking as Chang Haonan promised before. In the past two years or so, Yao Mengna started from topology and gradually completed her goal of "deepening theoretical foundation". Although there is still a certain gap between cheating players like Chang Haonan and those majoring in theoretical mathematics or theoretical physics. But as an essentially applied technician, her level is sufficient to handle most of her jobs. Apart from anything else, at least now Chang Haonan can no longer judge the readability of a paper by "even the senior sister can understand it" as he did back then. The polyphase diagram segmentation technology in front of us is right at the interface between mathematical theory and computer applications. It''s just the right time for Yao Mengna to take the opportunity to practice... Just like that, autumn passes and winter comes. Time has quickly entered December. As usual, the Aerospace Power Group will conduct a year-end work summary at this time of each year and plan the work for the next year. The former is mainly completed by Lin Zuoming and Zhu Linyu. But the second thing is obviously the task of Chang Haonan, the chief planner. Fortunately, the overall development route of the Aerospace Power Group had been decided before the split of the head office in 1998, and until now, the preset time nodes have only been advanced, not delayed. So I just need to take out the cake I drew back then and refine it a little bit. Chang Haonan has already completed this task in his spare time from scientific research. Of course, Zhang Liangping must have completed the specific writing and polishing tasks. The content is not complicated either. The first is to strive to complete the production of the turbofan 10 in the first quarter, and to start the development of the ship-specific model turbofan 10H based on it. The second step is to complete the overall design of the SeA650 engine and implement installation testing. Third, on the basis of realizing the second item, the research and development of turbofan 20 and QC/QD300 series aeroderivative gas turbines will be officially launched before the end of the year. Considering that the core machines of these two models are derived from the turbofan 10, there should be no very difficult obstacles to overcome at least technically. All that''s left are bits and pieces. For example, we started pre-research on the fourth-generation turbofan engine. In fact, logically speaking, developing a new generation of products should be considered a major event. At least it shouldn''t be classified into miscellaneous items. But the situation of turbofan 10 is really too special. When the overall design was carried out that year, it was actually planned according to the fourth-generation engine with a thrust ratio of 10. Just because Huaxia was too weak in materials and technology, it had to "shrink" into a model with performance approximately equal to three and a half generations of aircraft engines. Therefore, the gold content of this fourth-generation pre-research is really low, and it hardly involves any actual technical work. Mainly to track the current level of basic disciplines in China. Provide some resources to promote if necessary. When the conditions are met, once the sealed turbofan 10 in the past is unsealed, a fourth-generation engine should be available soon. Because the workload of this process is so small, Chang Haonan often struggles with whether to give the fourth-generation engine a new model. Or just call the turbofan 10G and be done with it. In fact, what he really needs to work **** is the next generation of variable cycle technology. But that is indeed a bit far away, at least it is not an issue that needs to be considered in 2002... However, everything was ready on Chang Haonan''s side, just waiting for the annual meeting to be held. A slightly sudden, but not unexpected invitation was sent to his desk The J-10A will undergo a pre-production trial installation ceremony on December 15, 2001. Although Chang Haonan did not directly participate in the research and development of Project 10, he made the greatest contribution to the development of the J-10A sub-model. Being invited to attend was perfectly normal. The only problem is that this day also happens to be the day when the Aerospace Power Group was originally scheduled to hold its annual summary meeting. Even the notice has been sent out, and it is not easy to delay it just because Chang Haonan is alone. So, someone else had to do it for me. For Chang Haonan, this kind of delivery ceremony is of course no longer unfamiliar. However, this is the first time to participate in Rongcheng. In December in Sichuan Province, although it was not as cold as in Shengjing outside the Guanhai Pass, the cold and humid climate also made him uncomfortable as a northerner. Therefore, before getting off the plane, Chang Haonan specially put on a military coat. Fortunately, compared with the first time he came to Chengdu, his special plane can now fly directly to Huangtianba Airport in Factory 132, saving him the trouble of taking a car on the ground. Of course, from another level, Rongfei Group has made a lot of money by selling the J-7F over the years, and it will not continue to use those no-name off-road vehicles that were eager to fall apart at any time on the mountain road. After getting off the plane, Chang Haonan immediately saw the "Three Musketeers" responsible for the development of the J-10 not far below the gangway - Xue Chishou, Song Wenchong and Yang Wei. Compared to the last time we met, the first two have obviously become much older. Especially Song Wenchong. When he was recalled to take charge of Project No. 10, he was already quite old. By this time in 2001, he was already 71 years old. In fact, in the second half of the J-10A''s development, Song Wencong had already begun to gradually transfer command of the project to Yang Wei, who was the deputy chief engineer. As for the two-seat J-10AS that is still undergoing test flights, the latter is directly named as the chief designer. The three of them stepped forward and shook hands with Chang Haonan, or greeted Chang Haonan with a hug. "Let''s go over there and have a look." After a brief exchange of greetings, Song Wencong raised his hand to indicate the direction of the assembly workshop not far away At the entrance of the workshop, the four pre-production J-10As that are about to be delivered are parked. While walking on the road, Song Wencong had already begun to introduce the general situation of this delivery to Chang Haonan. In fact, Chang Haonan knew it even if he didn''t introduce it. The situation of the current batch of aircraft is slightly different from the "small batch production" of the J-11B. The latter is a "small quantity and multiple times" production carried out after the design is finalized in order to speed up the production and finalization progress and allow the factory to adapt to the production process of the new model. The main purpose is to quickly improve the process flow and prepare for formal mass production later. It is considered a kind of behavior of Party A. For users, there is generally no difference between the technical status and subsequent batches. But the "pre-production model" of the J-10A is at a stage further ahead of schedule. It has completed all tests required for design finalization, but has not yet officially issued the finalization document. It is equivalent to letting users use it again to see if there are any problems that have not been discovered during the test flight. If so, then there is one last chance to check for deficiencies before the design is finalized. For example, in the original timeline, the first delivery of the pre-production J-10 did not have the ability to use active mid-range bombs, and the landing gear door was also two-piece. It is different from the actual mass-produced model later. Therefore, it was later reworked and upgraded to the technical state after it was finalized. Of course, the four J-10As in front of us do not have these problems. The Thunderbolt 12 has been tested by the J-8C and J-11B respectively last month, and was finalized with a score of 12 out of 12. The first batch of mass-produced bombs has even arrived at the 1st Regiment of the 1st Air Division. Although the J-10A has not yet had time to conduct live-fire target shooting, there is no doubt that the fire control system has been compatible in advance. As for why "pre-production" is still necessary under such circumstances, it is obviously just out of caution. After all, it is the first third-generation machine that is 100% self-developed and domestically produced. You can never go wrong if you walk more cautiously. While they were talking, several people had already arrived at the door of the factory. To be honest, although the upgrade plan of the J-10 was almost single-handedly promoted by Chang Haonan, the slim version of the J-10 in his previous life left a really deep impression on him. So much so that when standing in front of this plump version of the J-10, Chang Haonan felt a little unreal. None of these four aircraft had five-digit aircraft numbers, but the tactical numbers 01-04 were spray-painted in low-visibility gray on the sides of the aircraft. As for the mounts, they are two auxiliary fuel tanks that are standard for transition flights Due to the huge increase in internal fuel volume and the installation of a total of three nearly parallel weapon racks on the belly of the aircraft, one in front and two in the rear, Rongfei directly canceled the ability to accommodate the third auxiliary fuel tank in this position. Anyway, what was originally in the belly of the fuselage was only a small 800L auxiliary fuel tank, which did not have much impact on the range. "These aircraft are to be delivered to..." Chang Haonan turned around and asked. Without the machine number, it is impossible to directly determine the unit equipped. Yang Wei pointed to Unit 04, the outermost unit. Four pilots wearing flight jackets were currently surrounding an Air Force officer with the rank of colonel, probably listening to the mission deployment. "The 131st Regiment of the 44th Air Division is the unit that is used to painting the big red eagle on its aircraft." (End of chapter) Chapter 962 The most exciting episode Chapter 962 The most exciting episode It seems that, unlike the situation with the J-11B, the first unit equipped with the J-10 was not affected by the change in the timeline. It''s still the "Big Red Eagle Group". On the one hand, Mengzi County, HH Prefecture, Yunnan Province, where it is based, is relatively close to Chengdu and has a relatively mild climate. On the other hand, the 131st Regiment of the 44th Division was also one of the only seven night flight regiments in the army in the early years. Properly elite Not to mention back then, even now in 2001, not all aviation units in the army can take off and perform missions at night. On the one hand, a large number of daytime J-6 and J-7 aircraft are not equipped with radar and cannot operate at night or in low-visibility conditions. On the other hand, troop training levels can easily fail to keep up with improvements in equipment levels. Especially in this period of rapid change. It''s not that units that didn''t have all-weather combat capabilities before were suddenly able to do everything after replacing them with more advanced aircraft. It still takes time to learn and practice. Moreover, compared with the east, southeast and southwest directions, the air defense pressure faced by southern my country mainly comes from chaotic air situation information rather than a specific powerful enemy. This means that the aircraft does not need to have a large range and bomb load, but has higher requirements for dispatch frequency and response speed. It is very suitable as the location for the first deployment of J-10. Chang Haonan and four others circled twice around the first delivery aircraft numbered 01. "Speaking of which, how is the adaptation of the Condor 1 pod to the aircraft completed?" Chang Haonan looked down at the somewhat bare air intake and suddenly asked. "The pod''s control system complies with the data bus specification, and there is no problem in cooperating with the aircraft." Yang Wei replied: "Currently, the prototype of the J-10AS is still undergoing adaptation tests between the pod and different types of ammunition. Also, the 613 Institute said that uncooled infrared components need to be imported for the time being, and the price of day and night targeting pods cannot be lowered, so the troops We may first purchase a small number of daytime pods without infrared capabilities for trial use..." Chang Haonan naturally knew this. In fact, he even personally gave the instructions to Lu Guangshun, the chief engineer of Shenyang 1, to prioritize the development of daytime pods. However, for the designers of Rongfei Group, it is still a bit uncomfortable. Especially in order to improve the multi-purpose capability of the J-10, they almost completely overturned the design plan and started over again. As a result, users dont seem to care much about it. There is quite a feeling of frustration that "I have prepared so many functions for you to explore, but you just don''t use them." "Our air force has always focused on defensive air control in the past. In recent years, the level of hardware has improved so fast that it is normal for our thinking to be unable to change for a while." Chang Haonan is very open-minded: "This kind of thing has to wait for an opportunity and teach people once, so that everyone can realize the importance of the aircraft''s multi-purpose capabilities in a short period of time." "Speaking of importance, I don''t know if you have heard of it, Mr. Chang." Yang Wei, who had a serious face, suddenly showed an unbridled smile: "When we first conducted the test of the J-10AS flying the Shenying 1 pod, there were a few guys who were secretly filming around Yanliang Airport. They were hiding well on a hillside, but when the plane took off, the back seat The pilot was bored and used the thermal imaging channel of the pod to look around, and he immediately picked them out..." "I''ve heard of it, I''ve heard of it." Chang Haonan also immediately became happy: "It seems that there is really a spy inside who has received money from foreign intelligence agencies, but the remaining unlucky ones also followed suit..." For a moment, the tarmac was filled with happy air. Maybe its because of the pre-production type, or maybe its simply because at the end of the year, many people are busy doing year-end summaries and other things. In short, the scene in Chengdu today is not too big. As usual, the Science and Technology Commission sent Zhang Hongbiao to support the occasion. But there are far fewer other guests. Even Qiao Chenqing didn''t show up. Chang Haonan did see Jing Yanlong. Considering that he is in charge of publicity, it makes perfect sense to appear here. "Director Jing, are you here to collect materials?" Before the ceremony began, Chang Haonan came to Jing Yanlong and said hello to him. "yes." Jing Yanlong closed the notebook in his hand and put the pen back into his pocket: "First, it needs to be used for propaganda within the military. In addition, it is not easy for local media to come here for interviews. We can only provide propaganda materials." "This pre-production model has just been delivered. Do we need to report on it?" Chang Haonan was a little surprised by this. China has always adopted a relatively conservative strategy in the promotion of weapons and equipment in the past. In fact, this approach has nothing to do with confidentiality, it can only be called low-key. This is especially true when it comes to public reporting. Two types of aircraft, including the J-10 and J-11, participated in the 50th anniversary military parade that year. They also used the term "domestic third-generation fighter jets." Although you know it and I know it, everyone knows it, but in theory there is still no "public" equipment name. As for the previous models being put into service, it is even more silent. But judging from Jing Yanlong''s reaction, it seems that the superiors have decided to make more noise on the J-10. "Well...let''s do some publicity." Jing Yanlong replied: "It will certainly not involve specific equipment units and models, but the news should include video footage of the delivery ceremony and the aircraft''s transfer and takeoff." "Firstly, the delivery is to Yunnan Province, and the location is not so sensitive. There is no need to worry about irritating any country. Secondly, it is also used to promote the J-10E of the same model and sequence. After all, Thailand may soon make a final decision. The purchase decision was made Chang Haonan wanted to say that it might not irritate others, but he hesitated and finally did not speak. While the two were chatting, the delivery ceremony also kicked off with a burst of music. Chang Haonan has participated in similar scenes so many times that he has almost become desensitized. Of course, as the protagonists, both parties A and B, that is, representatives of Rongfei Group and Air Force 131, were very excited. Especially the four pilots, their mouths were grinning to the sky, and their exposed white teeth could be seen clearly from dozens of meters away. However, unlike last time when he was rushing to attend two games in one day, this time Chang Haonan had plenty of time. Therefore, he did not return to Beijing immediately after the ceremony. Instead, he stayed and prepared to watch these new machines bid farewell to Factory 132. At about three o''clock that afternoon, four planes formed two twin formations and took off from the runway of Huangtianba Airport, trailing long blue-purple tail flames. Although the J-10A is much "fatter" compared to the original design, the adverse impact of this change on the aircraft''s performance will mainly be reflected at supersonic speeds, at least in the transonic speed range. In terms of basic flight performance such as takeoff, landing, and climb, thanks to the maximum thrust of the turbofan 10B of up to 14 tons, the effective thrust-to-weight ratio of the J-10A has increased instead of decreasing, making it more efficient than the J-10E. "In August this year, I specially searched for video data and watched the flight performances of Typhoon and Rafale." It wasn''t until the four planes were completely out of sight that Song Wencong, who was standing next to Chang Haonan, looked back with some reluctance and said to Chang Haonan with a hint of emotion: "To be honest, the maneuverability of the J-10Es we sent over at low altitudes and low speeds was still somewhat behind them." "If it were a J-10A, the performance would definitely be better." "Speak of it." At this time, Yang Wei also walked back from a position slightly closer to the runway: "Our J-10 made its first flight several years later than the European Shuangfeng, and ended up entering service earlier. Do you think...will they receive some stimulation?" "Europeans...it''s not surprising." As the person in charge or the initiator of many cooperation projects with Europe, Chang Haonan can now say with great confidence that "no one understands European military industry better than me": "But I don''t think it will be a big deal if I''m stimulated." Song Wenchong and Yang Wei both looked at Chang Haonan with curious eyes at this time, obviously waiting for him to continue talking. "The first is Rafale. Although the Type C used by the Air Force has not yet entered service, two carrier-based Rafale M aircraft have been delivered to the French Navy for trial use. The progress is basically the same as that of the J-10." "As for the typhoon, although the progress is indeed a bit slow, and the first batch is not scheduled to be officially delivered until next year, but it is a multi-national cooperation project, so every country will feel that the problem lies with the other three companies, and it is impossible to be stimulated..." Several people around heard this and laughed almost at the same time. After a brief pause, Chang Haonan continued: "Actually, if we really want to talk about being stimulated...there is indeed a country that will be stimulated, but it''s just not in Europe..." "Not in Europe?" Song Wenchong frowned, thought for a moment and then raised his head again: "USA?" "That''s not true, is it?" Chang Haonan quickly waved his hand: "It''s just a third-generation aircraft. It''s definitely not that big of a deal for the Americans... Besides, they''re staring closely at Aiwuhan right now, so I''m afraid they don''t have that much energy to pay attention to us." "That is" Song Wencong was a little confused. "I think what Mr. Chang may be talking about is..." Yang Wei next to him heard some clues: "India?" (End of chapter) Chapter 963 Is Guanghui also going to develop an imp Chapter 963: Guanghui also needs to be improved? "It''s not that bad..." For older generation technicians like Song Wencong, this answer does seem counter-intuitive. Although the Indian Air Force once caused considerable trouble to our country and is still trying to continue to cause us trouble so far, its main weapons and equipment are basically imported from various countries. Nowadays, China''s aviation industry has basically sat on the same table as the Europeans. Your Stan Airlines can even have problems assembling large parts of the Su-30MKI. Can he compare? You dont know how to compare, right? However, slightly younger people, such as Yang Wei, quickly understood what Chang Haonan meant: "What Mr. Chang said does make sense." "I remember...the Tejas fighter jet they developed is the LCA. It seems that it only made its first flight at the beginning of this year, right?" "That''s right, January 14th." Someone next to me quickly answered: "And the TD1 that first flew is strictly a technology verification aircraft, not a prototype." "I remember that at that time, there were a lot of reports there, intentionally or unintentionally comparing the LCA with our J-10..." Hearing this, everyone burst into laughter. Before 1997, it would still make sense to compare these two aircraft together. After all, although the aircraft are different in size, at least on paper they are all serious standard third-generation aircraft. No one should laugh at anyone before they really fly. Even the TD1 verification aircraft was assembled much earlier than the No. 1001 J-10. But it''s already 2001, and it would be a bit arrogant to still do this. The TD1 demonstrator was completed and rolled off the production line in 1995, and it took a full six years of debugging before it made its first flight. The second TD2 was manufactured in 1998. It looks like its already 2002 and it hasnt had its first flight test yet... In fact, this exchange between several people fell completely into the category of casual chat. After all, no one really regards their Indian counterparts as their equal opponents. Including Chang Haonan''s guess, it was actually just a casual comment - There are many countries currently developing or trying to independently develop fighter jets. Including the F2 fighter jet, which was announced for service in 2000, it has not actually been fully tested and can only be regarded as a semi-finished product. Moreover, the ambitious Mitsubishi Company also has a "F2 super modification" plan. Being beaten ahead by the J-10 is a big stimulus for these countries. India does not appear to be that special among them. However. He made a casual guess. I guessed it right... In the news broadcast the next night, a two-minute long video appeared, reporting on an unprecedented scale the news that "a new generation of fighter jets designed and manufactured by our country" was put into service in the army. Although the specific model is still not mentioned as usual, the video information provided in the news is too clear. Anyone who pays a little attention to relevant news will know that it is the J-10. Moreover, compared with the version that was previously shown at the air show, it has obviously undergone major changes. It should be the rumored multi-purpose model In the circle of military and aviation enthusiasts, since they have not been exposed to specific model naming, many people refer to the two J-10s, which have similar basic designs but obvious differences, as "air superiority type" and "air superiority type" respectively. Multipurpose". And he thinks he will join the Chinese Air Force and serve at the same time. Although the idea behind it is very questionable, if you just look at these two names, you can really get the meaning. For a time, the entire China, and even the Internet around China, were filled with discussions about this news. The fact that there are two versions of the J-10, one fat and one thin, has been spread for a long time. But the fact that the new version can be delivered before the end of 2001 is indeed somewhat unexpected. You know, the standards for "commissioned troops" in China''s caliber are quite high. At least it means that the design stereotype testing has been completed. Like many countries, it is not a gold standard to "serve" in advance before it is finalized halfway. Of course, most people just discuss it. On the one hand, China''s progress in the field of aviation technology over the years is obvious to all, and it has gradually raised everyone''s shock threshold. Moreover, the J-10 has already made two public appearances before this. Especially at the Paris Air Show, a large number of extremely high-definition photos were leaked. Although all the "thin versions" that have appeared are "thin versions", compared with the original timeline, this generation''s J-10 has less of a "born out of nowhere" meaning. On the other hand, although there is no report in the news which unit is the first lucky person to equip the J-10. But soon some netizens from Yunnan Province claimed that they saw a plane with a similar appearance landing on December 15, and there was more than one person. From this it is not difficult to identify the 44th Division. At most, it cannot be accurate to a certain group. The aviation force stationed in Yunnan Province is indeed what Chang Haonan thought before. Not particularly sensitive. Or at least not particularly sensitive online. After all, several countries adjacent to Dian Province have not yet fully recovered from the financial crisis in 1998. Network construction or something... It might be a bit much to say it doesn''t exist, but it''s pretty much the same. However, in a relatively harmonious atmosphere, one country is an exception. That is the India that Chang Haonan mentioned accidentally before. Logically speaking, they should have no direct relationship with Yunnan. There isn''t even a border. But if you take a look at the map, you will find that the terrain in Yunnan Province is indeed a bit too good. Of course, "good" here refers to relative to the plateau environment. Therefore, the Indian army has always been worried. That is, will China start from Yunnan Province, cross the northern part of Shan State, and penetrate directly into the rear of its fragile seven northeastern states? In this way of thinking, they are naturally very wary of the troops deployed in Yunnan Province, especially the aviation troops. And the comparison mentality triggered by this in the aviation industry is almost natural. South Asian subcontinent. Bangalore. Dr. Kota Naraya is taking several senior military officers to visit the TD2 demonstrator that is about to fly for the first time in the assembly factory. Compared with the TD1, which had difficulty starting the engine after it rolled off the assembly line and took four years to conduct ground testing in 1999, the TD2 in front of us has made significant progress in assembly quality. At least not much went wrong on the ground. The reason why it has not made its first flight until now is mostly out of caution. The TD3, which was undergoing final assembly not far behind the group, could even be regarded as a prototype with a relatively stable technical status. According to the plan, it will make its first flight within a year of being offline. LCAs first full-state prototype, PV1, has also begun production of large components. Although this kind of performance is not worth mentioning in the world, it is definitely a real progress for India, which is trying to be self-reliant for the first time. Looking at the bustling factory in front of him, Dr. Naraya could not help but smile. However, the expressions of the officers standing next to him were not very good. Especially Air Force Chief of Staff Anil Tipnis, who wears the rank of general. In the command sequence of the Indian Army, he is the top leader of the Air Force. "PhD." Tipnis turned to look at Naraya: "I thought you already knew that." "what do you know?" A trace of confusion flashed across the latter''s face. He knew a lot of things, but he really didn''t know what riddle the other party was playing. "Just the day before yesterday, the Chinese Air Force commissioned their first batch of J-10 fighter jets." Tipnis replied seriously: "Moreover, it is somewhat different from the models that have been released in the past." "So that''s what you were talking about..." Naraya breathed a sigh of relief, apparently not realizing the seriousness of the situation: "My analysis shows that the version they equipped themselves has increased the range and bomb load at the cost of reducing a certain degree of maneuverability. The overall development direction is closer to a multi-purpose fighter." "Of course, in beyond visual range air combat, a relatively large bomb load means that more rounds of air-to-air missiles can be fired, which is also an advantage in itself." Tipnis nodded impatiently: "Doctor, of course I know what you are talking about." "What I want to say is, if they are currently deploying this new type of aircraft in Yunnan Province, will they completely suppress our LCA that is about to enter service?" According to the plan, LCA will enter service around 2006. According to Indian standards, it is not a big problem to say it is "soon". Facing this somewhat unreasonable question, Naraya''s eyes were full of doubts. He was not a soldier, so he did not know the air force''s concerns about the Chinese raiding the seven northeastern states. However, after thinking for a while, he still replied: "Although the LCA is technically equivalent to the J-10, the Chinese J-10 was originally a medium-sized fighter close to the F16. Now it has been improved and its take-off weight is probably at the level of the Rafale or even the Typhoon... And ours The LCA''s empty weight is only five and a half tons, and its take-off weight is less than 9 tons after it is normally loaded with fuel and bombs..." "If it''s just an air combat, then I believe these two models should be equally matched, especially the agility of the LCA will far exceed that of the opponent, and it may have an advantage within visual range, but in terms of overall performance, our aircraft is limited by its size. , Im afraid it doesnt have enough multi-purpose potential It should be said that this evaluation is relatively objective. Naraya does not know the specific situation of the turbofan 10, and can only regard it as a model similar to the F110 or AL31F. And such an engine is obviously not enough to propel an aircraft with an empty weight of more than 9 tons, and possibly even 10 tons. As for beyond-visual-range air combat and multi-purpose capabilities, unless the technical level is very different, these are the inherent disadvantages of small aircraft. However, these words sounded a bit strange to Tipnis'' ears. "Dr. Naraya." The admiral walked to the front of the TD2 verification aircraft, stretched out his hand and patted the leading edge of the wing: "I think our Air Force also needs an improved LCA model with more advanced technology and stronger combat effectiveness." Hearing this, Naraya was naturally happy and quickly took two steps forward: "We do have a plan to improve LCA, currently named LCAMK1A." "Basically, the current F404 engine is replaced by the F414 with greater thrust, and then the internal fuel capacity is increased and new airborne equipment is replaced, including phased array radar and active mid-range missiles. By the way, some ground attack capabilities can also be obtained. In fact, Naraya himself is relatively rational. Although this improved model does exist, it can only be regarded as an idea at present. According to his plan, the upgrade should be started after LCAMK1 is equipped with troops. Talking to Tipnis now is just to show his face in front of the Air Force Chief of Staff and give him an impression. To put it bluntly, it''s a painting. However, what the doctor never expected was. This painting completely drew me into a pit Tipnis actually got off the donkey directly along the slope: "Doctor, can we directly start the upgrade plan you just mentioned based on the current few verification machines?" It was only then that Naraya finally felt something bad: "It''s hard." He quickly went back to make up for it: "Right now, the MK1 prototype has not yet been fully assembled. If we rush to improve it now, the foundation will be unstable and other related problems will easily occur." I suggest waiting until the base model LCA is delivered before considering the next step of upgrading. The doctor''s words made Tipnis fall into silence: "Um" "In fact, the Air Force is planning to reduce the purchase of basic LCAs from the originally planned 76 to 24 or 18." Hearing these words, Naraya almost gasped: "how" "You know, according to the plan, LCA will not join the Air Force until around 2006. By that time, the performance of the basic model should have lagged behind, and it is impossible for us to purchase a large number of a model whose combat effectiveness is not as good as that of our main opponents." Tipnis shrugged and replied: "However, doctor, don''t worry too much. The reduced quantities will not be canceled directly, but will instead be purchased for the upgraded models you just mentioned." (End of chapter) Chapter 964 Indian designer who doubts life Chapter 964: The Indian designer who doubts life If he could turn back time, he would definitely go back ten minutes ago and stop himself from blindly making cakes. What MK1A? What upgrade plan? does not exist. Just this thing, love or not. Mainly, Dr. Kota Naraya never expected it. How can people be so shameless Transfer the canceled orders to the improved version. It sounds like there is no problem. But thats only ok if this improved model already exists. Now the basic MK1 has not even been built yet, so the order has been cut by three-quarters, which is like a bolt from the blue for the development of the project. It is true that Stan Airlines is a state-owned enterprise. If the Air Force now wants a more advanced MK1A upgrade, it will definitely need to allocate additional funds, and it will not require them to raise funds themselves. However, many problems in the equipment research and development process cannot be solved immediately with money. The overall design of the LCA was borrowed from the Mirage 2000 to a considerable extent, and a considerable part of the work was even done by the French. Therefore, in this nominally "self-research" project, the problem faced by the technicians is not only to accumulate experience, but also to make repairs while repairing the French in the Grand Triangle. Some details on the wing design need to be thoroughly understood. Only after all these processes have been completed through the development and production of the MK1, will it be possible to improve the new machine. Otherwise, if something goes wrong in the middle of the process, it will be difficult to even investigate the cause, let alone solve the problem. This is just a technical issue. Whats even more troublesome is that LCA is a project that dragged on for nearly 20 years before completing its first flight. Although the intensity of self-research is not enough, it is still the hard work of tens of thousands of people in the Indian aviation industry. And judging from the test results of the demonstrator, even the MK1 model can achieve the original design goal of "mainly focusing on air control tasks and replacing the MiG-21 and MiG-23MF". However, when success was just a step away, the orders promised by the Ministry of National Defense not only did not expand, but also shrunk. This is an extremely serious blow to the morale of the R&D team. It''s like you tried your best to finally complete the KPI set by your superior. Not only did you not see the bonus, but you were scolded by your stupid boss, and a higher KPI was set next month. No one can survive it. Thinking of this, Naraya calmed down and decided to try to persuade the other party. "General Tipnis, I wonder what combat goals the Air Force hopes the new model of MK1A can achieve?" At this time, there must be no conflict with Party A''s eldest father. Therefore, the doctor chose a relatively roundabout strategy. "Our new aircraft cannot be used only as a defensive model, but should have sufficient offensive capabilities, such as launching active mid-range bombs and the ability to use precision-guided weapons..." Tipnis danced in front of the TD2 verification machine and said: "Of course, there is also a longer range and a larger bomb load, which can support the aircraft to operate in the air for a longer time, instead of landing half an hour after taking off..." Now, Naraya understood a little bit Isnt this exactly the J-10A that wants to compete with its northern neighbor... While secretly cursing the other party''s completely unreasonable desire to compare, he began to organize words quickly in his mind. "But your Excellency General, the original development goal of LCA is just to replace old aircraft like the MiG-21." Naraya argued with reason: "As far as I know, the main mission of these fighter jets in the past was only to fight for air supremacy, or to cover attack aircraft for low-altitude and short-range raids, which are the parts that LCA is good at." "If it is to carry rockets and ordinary bombs for emergency response, then the LCA in the MK1 technical state can also do it, and because of the bomb delivery computer, the accuracy is higher than the old model." "Moreover, even if multi-purpose capabilities and sufficient range are required, we are already equipped with Mirage 2000C and Su-30MKI, leaving little room for LCA to carry out such ground strike missions..." Hearing Naraya''s answer, Tipnis''s face changed slightly. "Doctor, what I just said are the opinions of His Excellency Vajpayee." "If LCA cannot meet these requirements through upgrading, then we can only consider spending funds on purchasing foreign aircraft in the future, such as the newer model MiG-29, or the JAS39 that uses the same power system as LCA..." Naraya''s heart couldn''t help but sink. This is also a problem that has been bothering him. Due to the extensive use of foreign parts and the inefficiency of the entire aviation industry, LCA, as a domestic aircraft, has no cost advantage. If you look at economics alone, the MiG 29UPG is a more cost-effective choice. Looking at Naraya who lowered her head and remained silent, Tipnis continued: "Furthermore, since China can modify the design of the J-10 and turn it into a multi-purpose fighter, can''t we do the same?" The original intention of his words was probably to use a provoking method. However, it was better not to say it. Once he said it, it made Naraya even more angry - Do you want to take a look at how big the gap is between the actual situations in our two countries? Before LCA, Stan Aviation''s only experience in the field of design and development was the unsuccessful HF-24 "Aeolian". Not only is the equipment quantity small, but the aircraft design also fluctuates back and forth amidst constantly changing requirements. Just like LCA now. Before the Chinese developed the J-10, they had successfully made in-depth improvements to the MiG-19 and MiG-21, so much so that even the MiG Design Bureau would not recognize them when they came. They also independently developed a larger aircraft. second-generation interceptor aircraft. Taken together, the total production volume of these models has reached four figures. Apart from being called a "Third World Power", both sides have nothing in common. Of course, these things are just to be complained in the mind, saying that it is impossible to say them out. "Of course...it can be done." Naraya drew the cake himself, and at this time he had no choice but to nod his head: "Just modifying the plan will inevitably take several more years, and upgrading the aircraft is not only the work of our design team, but the engineers and workers on the production line also need a certain amount of work to maintain proficiency..." "so." Before the doctor could finish speaking, Tipnis answered first: "Don''t we still have orders for 18-24 aircraft?" "But the quantity is too small, and the production line cannot be maintained for a few years..." "But the early version of the Chinese J-10 first flew in 1997, and it has only been four years since the upgraded model has already been put into service." Tipnis has no longer concealed his true thoughts of hoping to compete with China: "If we maintain low-speed production, about 20 aircraft should be enough for 5-6 years of production, right?" "?" Naraya felt that her blood pressure was about to explode. He could even clearly feel that the blood vessels on his forehead were beating loudly. It must be admitted that there is definitely a reason why this kind of rhetoric of "other people''s children are like that" can be passed down from generation to generation. If nothing else, it''s definitely useful for gagging. At this time, Naraya was in such a state of unspeakable suffering... In the end, Dr. Naraya failed to convince Tipnis to change his mind. Of course, perhaps, as the latter said, this is actually Prime Minister Vajpayee''s opinion. If this is the case, then there is really nothing the Chief of Staff of the Air Force can do. "Boss, what should we... do next?" Standing at the gate of the factory, Naraya''s assistant Sara Gupte asked him. There was a bit of confusion in his eyes. "We will keep the original plan unchanged and continue to prepare for the first flight of TD2 and the final assembly of TD3." Naraya forced herself to calm down: "If we interrupt the testing of the MK1 now and start the upgrade project directly, we will face very big difficulties." Gupt sighed helplessly, then nodded. For a moment, the two looked at each other in silence. After a moment of silence, Gupt spoke again: "But speaking of it, why is it that China..." His question had just begun, but he was interrupted by Naraya with a wave of his hand: "We don''t need to care about the situation in China." "It does no good to ourselves to focus on others..." Having said that. But in fact, Naraya has really been wondering in recent years what kind of miracle medicine the Chinese people have taken, and they have taken out all kinds of strange and advanced technologies from their pockets like magic tricks. In the past, although there was a gap between the two parties, they were still able to sit at the same table and eat together. But in just five or six years, others are already on an equal footing with those established aviation powers. Especially before, he tried to use Snecma''s M88 engine as a bargaining chip to put pressure on General Electric to lower the purchase price of the F404. As a result, the response given by the former shocked Naraya. It stated that due to relevant regulations on cooperative research and development, it was unable to sell M88 engines or related technologies to Stan Aeronautics. Originally, many people still held a half-belief and half-disbelief attitude towards the statement that "France and China jointly developed the M88". In particular, China''s level of participation is generally considered not too deep. However, this is obviously not the case... Naraya shook his head, forcing himself to stop thinking and focus on the trouble in front of him. The only solution he can think of now is to let his local technical staff continue to be responsible for improving and thoroughly understanding the design of LCAMK1, and at the same time go to Dassault to let the French develop the model based on the existing ones. A major modification to meet the Air Force''s new requirements for this model. Although the participation of foreign designers is bound to mean higher costs, at least it is technically less risky. LCA has already reached the edge of the cliff. If there is an accident such as a machine crash and fatalities at this juncture, it will most likely be completely destroyed. Furthermore, after all, it was Party A who took the initiative to modify the product requirements, so the funds would naturally have to be passed on to them... (End of chapter) Chapter 965 Id better seek the opinions of the Chin Chapter 965 Lets seek the opinions of the Chinese people on this matter All said and done, although the "cooperative relationship" between Stan Aerospace and Dassault has been around for a long time, the last interaction between the two parties was already a waste of money and goods, and now they want to find another partner to join the MK1A upgrade. Then you will definitely have to go through the process again. As we all know, in India, the efficiency of the process is still a bit low. Even though everyone knows that hiring foreign aid is the only feasible way in front of them, let alone the final decision, just deciding to send a letter of inquiry to Dassault to confirm the intention to cooperate took almost half a month of wrangling. time. When this inquiry letter was actually sent out, 2001 had already passed. And this time coincides with Christmas, and the French are naturally enjoying the 14-day Christmas-New Year''s Day holiday. It was impossible to go to work. Therefore, it was not until the end of the first week of 2002, on January 7, that the Professional Client Division of Dassault Group finally reported this inquiry letter to the headquarters. In fact, generally speaking, this kind of thing is a written process, which is roughly equivalent to "call and ask before visiting an old friend''s house." It''s almost impossible to get a no reply. Especially like LCA, it is said to be joint research and development, but in fact it is entirely Indians who pay for it and Dassault comes up with the solution. The execution is no different from a normal supplier contract. And due to India''s special national conditions, they are often a very weak party. Therefore, while waiting for confirmation from the group''s senior management, Cornell Bass, the head of the professional customer division, had already ordered his subordinates to dig out the technical data of the LCAMK1 type from the pile of old papers and regroup those who had participated in the past. The manpower for this project is You know, they just completed the design work on the upgraded model of Mirage 2000-9 before the Christmas holiday. It is also a tailless delta wing, it is also a single-engine light aircraft, it is also an air superiority aircraft that has been greatly modified to be multi-purpose, and it also involves structural changes... It is difficult for Stanair to draw inferences from three cases, but it is not difficult for Dassault to draw inferences from one case. Just take advantage of the time when your hands are still hot, apply the same experience to LCA, cheat again... and make a big sum of money back. However, no matter how hard they geared up, there was still no reply from the headquarters. You know, Bass has already decided on the team leadership positions that are going to be sent to India. This is equivalent to promising a benefit. But now that even the most basic confirmation of intention is being delayed, he feels a lot of pressure. Therefore, a few days later, Bass, who was impatient to wait, began to wonder whether the previous email failed to be delivered due to some technical reasons. Therefore, a second inquiry letter was forwarded repeatedly. However, it still fell into disgrace. After receiving no response twice in a row, he finally realized that something was wrong with the direction of the wind as his mind was still immersed in the vacation and he had not fully recovered. In this case, it is impossible that the above did not receive it. It''s more like preparing it for cold treatment... In fact, what Cornell Bass thought was a bit complicated. The headquarters has no intention of treating it coldly. It''s just that I haven''t made a decision yet. In fact, the secretary''s office reported the news to Ed Steiner as usual on the day it received the first email. Under normal circumstances, for this level of business, as long as he gives an approval opinion, it will be fine. But this time, Ed Steiner specifically found Serge Dassault and briefly introduced the situation to the latter. LCA Dassault frowned slightly and flipped through a document in front of him. The last time the two companies cooperated, his main focus was almost entirely on the municipal elections in Corbeil-Essonne, and he didn''t particularly understand the ins and outs of it. Therefore, when he saw that the first demonstrator of this model rolled off the production line in 1995, but did not make its first flight until 2001, the nearly 80-year-old man shook his hands and almost dropped the document on the table. "This aircraft...were really involved in the design?" Dassault confirmed a little nervously. "That''s not entirely true..." Ed Steiner considered his words: "We have provided certain technical support in the aerodynamic and structural design of the tailless delta wing. The three-stage leading edge slat is actually a modified plan that was designed for the Chinese people about ten years ago..." "As for the aircraft itself, uh... overall... probably... it should be considered that it was designed by the Indians themselves..." Hearing this explanation, Dassault was slightly relieved. "Since their second prototype has not yet flown for the first time, why are they in such a hurry to come to us for upgrades?" He closed the document, put it aside, and took a sip of coffee to calm down: "I didn''t even understand the basic model..." Dassault originally wanted to criticize a few more words, but then he remembered that his own Rafale seemed to have skipped the F1 stage and was preparing to mass-produce F2 directly, so he suppressed the second half of his words. . "Although our Rafale F1 is manufactured in small quantities, the technology is still very mature..." He repeated it silently in his mind several times and warned himself never to make analogies with Indians. "The official statement given in the application letter is that the old model cannot meet the current tactical needs." Ed Steiner shrugged playfully: "But I estimate that the actual reason is... I was stimulated by the improved J-10 that the Chinese suddenly put into service a month ago." "You know, many people...especially the media are willing to compare the two countries together. They are both third world countries, both have a population of about one billion, they are both Asian countries, and they are neighbors..." "Forget it...they are not countries on the same level." Dassault almost choked on the coffee in his mouth: "We and the Chinese people...that is technical cooperation in the true sense..." After a short pause, he even emphasized it again: "Peer-to-peer cooperation." Nowadays, one of the two core models of Dassault Group is being jointly developed with others, and the key technology of the engine of the other is in the hands of others. To be honest, it''s quite embarrassing. The only way to save face is to tout the technical strength of China''s partners. It can be said that Dassault now hopes that China can catch up with the Premier League and the United States more quickly than Chang Haonan. "So, that''s what I''m concerned about as well." Ed Steiner took the opportunity to express his intention The Indian is a fat sheep. This has been verified by the Russians. According to the summary of information from multiple parties, the unit price of the Su-30MKI sold by Sukhoi to the Indian Army is much more expensive than the Su-27SM/UBM sold to Algeria, even if it cannot use the new generation of enhanced airframe. The price difference here is nominally the "technical guidance fee". Because Indians require that part of the final assembly work be completed in their own country. However, judging from Stan Air''s past performance, there is still a question mark whether it can guide one, two, and three. Therefore, based on this inference, the LCA upgrade project will definitely be relatively rich. But Dassault is currently tied a bit deeply to China, and we still have to think carefully about which is more important. And Dassault on the opposite side can naturally understand the implication: "Are you worried that if the Chinese and Indians don''t deal with each other, if we provide technical support to the latter on LCA, it will most likely affect the cooperative relationship between us and China?" Ed Steiner nodded, then shook his head: "That''s not all..." "I''m also worried that if we are really deeply involved in this upgrade project, our own brand will be damaged..." The second half of this sentence was obviously mostly a joke. However, it is important. Whether it''s a person or a company, they always have face. If a project is rejected simply because of "Chinese objections", wouldn''t it appear that Dassault Group is undervalued? And explaining it internally hurts morale. Therefore, at this time, you need a decent reason to deceive yourself... Sure enough, after hearing Ed Steiner''s second concern, Dassault''s originally frowning brows relaxed a lot. "How about this." He put the coffee cup back on the table: "Don''t go through official channels, let people confirm China''s attitude on this matter privately." "As partners, you still have to respect them." "in addition" When Ed Steiner was about to get up and leave, Dassault suddenly stopped him: "After you go back, do a prospective assessment of this project to see if it is likely to damage our company''s reputation." "If the risk is indeed too great... then we have to consider it carefully." (End of chapter) Chapter 966 Let Americans not sleep well Chapter 966: Let Americans sleep poorly No matter what the Indians think, the Chinese side actually doesnt care much about their rhythm. Especially the aviation industry. It is really realized on a practical level that it is better to buy than to build, and it is better to rent than to buy - If the Indian army really uses the money invested in the LCA project to buy ready-made aircraft, the threat it can pose may be even greater. In short, after the first batch of pre-production J-10A entered service, Chang Haonan quickly forgot what he said at that time. During this period, his main job was to improve the image processing system of the Haiyang-1 satellite. Not only the satellite side, but also the part that needs to be processed on the ground after the data is returned. And what are the results... There are already some clues. January 14th. The first snow in 2002 seemed to come no later than in previous years. Although a large number of municipal workers and people were mobilized, the heavy snowfall that lasted all night caused a lot of trouble to road traffic early in the morning despite insufficient equipment. So when Chang Haonan got out of the car, he almost missed his step. But there was no way. He had determined the date of this results report meeting himself, and he really couldn''t rely on others. In fact, the heavy snow even triggered temporary power outages in many areas. The planned meeting location suffered as a result. Fortunately, the Fifth Research Institute of Aerospace Science and Technology is a key target of ensuring power supply, so it can continue to operate in another place - The results report meeting was not a technical seminar, and most of the participants were leaders related to the Haiyang-1 satellite project. As a result, the location of the Torch Laboratory seems a bit remote. The Fifth Aerospace Academy is just right. What''s a bit bizarre is that the former has been working on this project for several months, but this is his first time here. Coupled with the heavy snowfall that covered everything with snow, he was a little confused about his direction for a while. Fortunately, at this time, a familiar voice sounded from not far away: "Mr. Chang, welcome." Chang Haonan turned around and saw Lin Senming striding over to greet him: "Mr. Lin?" He stepped forward and shook hands with the other party: "What a coincidence, you just arrived too?" "Hey... I saw you driving in and found that the comrade responsible for guiding the guests hadn''t arrived yet, so I came down from the office specifically." Lin Senming replied: "It snowed last night. I was worried that I wouldn''t be able to catch up today, so I didn''t go home and spent the whole night in the office..." Obviously, this person is also a person who forgets to eat and sleep when working. Ever since, within two sentences, the topic between the two people returned to today''s report meeting: "Mr. Chang, I summarized the part of the content I was responsible for last night, and I felt...it was difficult to come up with a sufficiently intuitive display." "Although there are a lot of data and charts, only an expert can understand those things. Today..." He didn''t continue at this point, but the meaning was already very obvious. Most of the people here today are leaders. Although there are also people with technical backgrounds, after all, there are so many different fields, not to mention that image recognition is still an extremely abstract and novel field. However, Chang Haonan looked relaxed and even patted Lin Senming on the shoulder: "It doesn''t matter. I''m prepared. Just organize the report meeting as planned." The latter is still a bit skeptical. But after all, Chang Haonan, who made the final decision, said so, and there was someone tall enough to support him even if the sky fell, so he nodded in the end. Perhaps due to the weather, the leaders who came to attend the meeting generally arrived a little late. Fortunately, it still did not affect the normal start of the report meeting. For Chang Haonan, reporting in such a relatively closed environment is already a familiar task. However, Lin Senming was still somewhat nervous. After a brief introduction, the general background of the satellite is introduced, as well as an overview of software programming. Logically speaking, these two parts are relatively dull content. But as he listened, Chang Haonan felt something was wrong. Too scripted. Especially the software design part. Even leaders with professional backgrounds do not know much about the computer field. However, Lin Senming started with an energy functional of the C-V model and the LBF model, followed by a curve evolution theory and variational level set method model, and finally ended with an active contour model improved by local binary fitting... If it''s a technical meeting within the project team, it doesn''t matter, but the report meeting... still needs to be concise and easy to understand. Taking advantage of the gap between the two paragraphs, Chang Haonan looked around and found that many people on both sides of the conference table were either frowning or drowsy. Although Ocean One is a nominal project of the ministry, even if it fails today, it is unlikely to have any serious consequences. However, the degree of tilt in funding will inevitably cause problems. More importantly, Chang Haonan also pointed out that he would use the funds from this project to continue developing multi-phase image segmentation and tracking technology. So, after finally getting through the first two parts, Chang Haonan chose to start from the middle part of the PPT as soon as he took the stage. "Dear leaders and colleagues, Comrade Lin Senming has just introduced to you the theoretical basis for our target contour segmentation. Next, let me show you our research results over the past month." In fact, I can''t completely blame Lin Senming for being boring. If you want to show the effect of satellite image processing, first of all, you must have enough satellite images in your hand. However, Haiyang-1 is Chinas first ocean remote sensing satellite... Therefore, when testing before, the project team used relatively abstract calculation methods to conduct testing. But it is obviously less intuitive. However, Chang Haonan thought of a remedy in time before the report meeting. "Everyone, please look at these pictures." He directly controlled the PPT to turn to the next page. No formulas or numbers, just four pictures. Slightly dull picture. A dark image composed of a regular pentagon and an ellipse on a gray background. "The color of the picture is painted on for visual effects. During the actual processing process, the background pixels will be simplified to a certain extent to reduce the pressure of information transmission..." Attendees who have just been fed too much mathematical symbols need this kind of intuitive and simple image to relieve themselves. Chang Haonan could clearly feel that many people had cheered up again. "Next, I will show the relationship between the evolution curve C and the target contour C* under the condition of piecewise constant value." While speaking, Chang Haonan clicked the mouse, and a white round frame appeared on the first picture: "In picture (a), when the evolution curve C surrounds the real target contour C*, the energy functional inside the curve C is greater than zero, while the external energy is close to zero; and in (b), when the real target contour C* surrounds When curve C is reached, the energy functional inside curve C is close to zero, and the external energy is greater than zero..." "In other words, for any part of the evolution curve, we only need to calculate its internal and external energy functional values ??separately to determine its positional relationship with the real target contour." "When the calculation results of its internal and external energy are close to 0, it can be judged whether it coincides with the target contour..." At this moment, the originally lifeless conference room suddenly became lively Except for some busy international waterways, there are actually not that many ships in most areas of the ocean. In other words, most of the photos taken by ocean surveillance satellites only have a sea background. Therefore, even if you just separate the target area and the background area and exclude data that only has background but no target, you can greatly reduce the communication pressure on the space-to-ground link and shorten the response time of the entire space-based reconnaissance system. This does not include the efficiency of secondary identification after the ground receives the data. Find an aircraft carrier from 10,000 photos, and find an aircraft carrier from 100 photos. The difficulty is obviously not on the same level. "Comrade Haonan." The speaker was Wang Shuguang, the head of the State Oceanic Administration. He certainly has no direct connection to the Navy. But in principle, Haiyang-1 is a satellite belonging to the State Oceanic Administration. Naturally, he was invited to attend today''s meeting. "I noticed that the four pictures you used all have uniform grayscale backgrounds, but the actual ocean background may not be so ideal. Even in the deep sea, there is a high probability of heterogeneous grayscales." "Can your algorithm distinguish the grayscale differences between the backgrounds in different areas, as well as between the target to be observed and the overall background?" This question is indeed a professional one. It''s not easy even for people in the Navy to imagine. "sure." Chang Haonan showed a smile: Actually, as long as the fitting function corresponding to the evolution curve is used to replace the gray level mean in the model in the local energy term. "In most cases, the picture captured in a photo does not involve too many complicated grayscale heterogeneous conditions. Combined with the weak performance of the spaceborne computer, we can basically handle it by selecting two fitting functions. Most of the time." While talking, Chang Haonan continued to turn the pages. This time, an overhead picture of a port appeared on the PPT. More importantly, although the clarity is very poor, it can still be seen that there is a full-deck ship parked in the lower left corner of the picture. "This is" Wang Shuguang frowned and realized that things didn''t seem simple. "The environment feels a bit familiar..." "Wait a minute, isn''t this Jinmen Nanjiang Wharf?" Someone soon recognized the location: "So this ship is the Kiev?" "That''s right." Chang Haonan replied: "This is a photo taken by a 244-channel CCD optical reconnaissance camera. I applied to the Air Force and got it just a few days ago." "In addition to the Kiev, there are several other large ships whose outlines can barely be seen clearly." "And after our processing." He clicked the mouse again. In an instant, except for the ground, dock buildings and the few ships, all parts involving the water surface turned into a light gray background with uniform grayscale. Even in shallow sea areas with complex hydrological conditions, we can still identify large surface targets! After finishing speaking, Chang Haonan turned around again. In the conference room, silence fell again. But anyone could tell that this time, it wasn''t due to listlessness. Instead, he was shocked to the point of speechlessness. "boom-" Until a crisp sound broke the silence. It was a naval leader who was holding a tea cup. He accidentally knocked the bottom of the cup on the edge of the table. Apparently, the technology doesn''t even have to be put into practical use. As long as a little leakage is revealed, it will be enough for Americans to have trouble sleeping... (End of chapter) Chapter 967 Ocean One project, upgrade! Chapter 967 Ocean One project, upgrade! This photo of Chang Haonan directly derailed the entire meeting and even the direction of the entire Ocean One project. Before he could finish the rest of his speech, Space Administration Director Luan Wenjie immediately stopped the report meeting. Originally, Ocean One was just a practical project involving the military and civilians and aimed at verifying basic technologies. No one even expected it to perform any specific function. The real highlight lies in the launch of the second batch of ocean series satellites after these verification technologies have been implemented respectively. Therefore, although the topic of Haiyang-1 has been discussed many times at the level of the Science and Technology Commission, the two national bureaus at the vice-ministerial level, the State Oceanic Administration and the China National Space Administration, have been the real long-term leaders of the project. But from this point it is enough to see that this project is focused but the specific level is not high. The key is its potential. However, no one expected that the potential that was originally planned to be redeemed in the next ten years was suddenly advanced today. In other words, based on the algorithm designed by Chang Haonan, if China currently has enough human, material and financial resources to directly build a network of more than 20 ocean remote sensing satellites, it will be able to immediately lock US aircraft carriers on a global scale. Location target too. But here''s the thing. A bit early. Whether in terms of intentions or capabilities, China has no immediate plans to break up with the Americans. Without suitable strike means at hand, what if we can locate the location of the US aircraft carrier? Furthermore, after a huge black swan incident, the opponent''s attention was finally drawn to the Middle East. In the next period of time, the main focus will be on stealing development. There is no need to impose too much unnecessary stimulation on Americans. Therefore, the content of todays meeting, as well as the entire situation of Ocean One, must be kept confidential Refers to a higher degree of confidentiality. In fact, Americans have always been wary of China''s attempts to establish a space-based ocean remote sensing system. The difficulties Ocean One encountered in terms of hardware before were caused by the other party stumbling upon it. Otherwise, it would have been launched more than half a year ago. But there is still a difference between vigilance and vigilance. By analogy. In the past, when I found out that China wanted to develop the Haiyang-1 satellite, I thought it was just that "someone was hiding weapons and armor." It''s something big or small. In particular, China is not a soft persimmon, and it is impossible to break up over such a thing. However, if the other side discovers this set of image segmentation and positioning technology, it will be equivalent to hearing that someone ate a note from the belly of a fish, or that someone dug out a stone man with one eye from the river. I also heard that someone wrote a poem: "Suddenly, a madman sharpens his knife at night, and the emperor''s star flutters in the sky"... In short, the nature is definitely completely different. Of course, since Chang Haonan chose to speak out today, he also recognized that the occasion was not large and the participants were of high level. Most of them are SpaceKou insiders. There are only two other navy leaders. As for the State Oceanic Administration, the only person in charge is Wang Shuguang himself. Therefore, the main change is in the follow-up work. "Director Shuguang." After Luan Wenjie hesitated for a moment, he looked at Wang Shuguang, who was presiding over the meeting with him: "In this current situation... I think, should we tighten the specific scope of information about Ocean One... including subsequent models of the entire Ocean series of satellites?" After all, the ownership of Ocean One belongs to the State Oceanic Administration on paper, so any policy changes must be decided by the two of them together. And Wang Shuguang was not originally from a military unit, so he was completely involved this time. Now that I was suddenly asked such a serious question, there was no way I could have any negative opinions. Naturally, I nodded at the speed of light: "I agree with Director Wenjie''s opinion." In addition to being the head of the National Space Administration, Luan Wenjie is also one of the deputy directors of the Science and Technology Commission. Although the two positions have the same level, it is obviously better to say the latter. "Ocean One is involved in the specific situation of ocean remote sensing. Currently, I am the only one in the Ocean Bureau who fully understands it." After a slight pause, Wang Shuguang continued: "In addition, I think that based on the current situation, the military value of Haiyang-1 has far exceeded the value of marine scientific research. Is it possible to consider transferring the ownership of the satellite to the Navy...or the Remote Sensing Center? As long as our Oceanic Administration can Just share some of the non-sensitive data..." As a department leader, this is the first time in his career that he has actively pushed the resources in his hands outwards. Because the Haiyang-1 satellite has changed from a sweet potato to a hot potato for Wang Shuguang and even the entire Ocean Administration It''s so scary. Why is it that one minute I am identifying a few harmless small squares, and the next minute I am targeting an aircraft carrier? Isn''t this what we promised before? Isnt it okay if I dont serve you anymore? As a result...it really didn''t work. Luan Wenjie shook his head decisively: "Director Shuguang, do you think that at this juncture before the launch of the satellite, a major event like a sudden change of ownership suddenly occurs? Wouldn''t it mean that there is no silver in this place, telling others that there is a big problem with this satellite?" "Moreover, not only this one, but also the subsequent ocean series satellites will be launched in the name of the Ocean Administration. After all, at least on the surface, our country is opposed to the militarization of space resources..." The more he spoke, the paler Wang Shuguang''s face turned. The latter also knew that he was on a pirate ship today. If you think about it further, it may be a bit difficult. He could only sigh and nodded somewhat dejectedly. "But...don''t be too nervous." Looking at Wang Shuguang, who was a little unsure, Luan Wenjie said half-consolingly and half-jokingly: "The specific operation of the satellite must be the responsibility of the remote sensing center. You only need to sign when necessary and do not disclose relevant information to others..." "Of course, of course." Wang Shuguang wiped the non-existent sweat on his forehead: "Cooperate with the brother departments, you should..." "Comrade Haonan." After barely appeasing Wang Shuguang''s mood, Luan Wenjie finally turned to Chang Haonan who had just returned to his seat from the podium: "After I return, I will write a specific report to my superiors. By then, the level of direct responsibility for the Ocean One project is likely to be further improved." "According to the original plan, your Torch Group should only be responsible for cooperating with the fifth institute to complete the design of the onboard software program, subsequent software injection, and ground program design and maintenance. Other departments will be responsible for completing it." "But now the situation has changed. The space agency hopes to carry out long-term cooperation with Torch Group in the ocean series satellite project. I wonder what you think, Comrade Haonan?" Although he was seeking Chang Haonan''s opinion, in fact, the answer was well known to both of them. Chang Haonan originally wanted to obtain more research resources through Ocean One. Even if these resources are not directly given to him, they will have many benefits for future plans. For example, the simplest one - Now that the ocean surveillance system has been established, wouldn''t it be logical to develop a weapon and equipment that can accurately strike enemy large water targets thousands of kilometers away? This does not count the role that contour segmentation and image recognition technology may play in other fields. Therefore, there is absolutely no reason to refuse. "no problem." Chang Haonan replied almost without thinking: "The algorithm and software parts can be left to our group and the comrades from the Fifth Aerospace Academy." "but." Before Luan Wenjie responded, Chang Haonan changed the topic again: "I have a small request, I hope Director Luan can agree." The former had an "I knew you still had a hand" look on his face, gesturing for him to continue. Chang Haonan was not polite and immediately said: "I have just mentioned that the current contour segmentation algorithm is still in its infancy and can only simply identify the background area and at most one target area." "When it comes to multiple targets and targets with less distinctive characteristics, the effect will be compromised." "So, we have previously established a pre-research group for segmentation and recognition of multi-phase, that is, multi-target images, and we have achieved some theoretical results so far." "Do you think... can we take advantage of this opportunity to upgrade the project level of Ocean One and turn our pre-research project into a regular one?" Upon hearing this request, Luan Wenjie did not give an answer immediately, but stared at Chang Haonan for a while. "Comrade Haonan, I have to tell you in advance." He had already heard about Chang Haonan''s "scheming" from Ding Gaoheng, and he did not dare to take it lightly: "Even if the level of responsibility for Ocean One is raised, the funding is unlikely to increase sharply in a short period of time, so you can''t arrange for a gold-eating beast to come in for me... Then you won''t be able to support me even if you sell my old bones. rise" "Director Luan, you know me." Chang Haonan made a candid appearance: "In terms of fund utilization, if I say it''s second, no one would dare to say it''s number one." "As for this new project team... In fact, you don''t need to allocate too much money. You just need to give priority to providing supercomputing resources and tilting the satellite payload slightly..." (End of chapter) Chapter 968 Let them waste some resources Chapter 968 Let them waste some resources. Based on Luan Wenjie''s understanding of Chang Haonan, the "slightly tilted" mentioned by the latter may not be that slight. But these can always be discussed. What''s more, in addition to the practical series of satellites specially used for scientific exploration and technological experiments, China also has the Shenzhou spacecraft orbital module that can be used as a small satellite. In terms of mission load, it is much more generous than in previous years. So, the matter was settled like this. Of course, raising the project level in the middle of the project still requires a process. Fortunately, the hardware development phase of the Haiyang-1 satellite has ended, so it is not expected to affect the final launch window. This report meeting, which was expected to last only about two hours, ended up taking most of a day. When Chang Haonan and Lin Senming sent away several leaders attending the meeting, it was already sunset. In January in Beijing, it gets dark early. "Mr. Chang." Standing in the parking lot, Lin Senming held Chang Haonan''s hand tightly with excitement on his face. His lips moved slightly, obviously wanting to express his mood at this moment. But in the end, I was still limited by my slightly lacking language skills. Thousands of words turned into one sentence: "Thank you so much" Everything is unspeakable and belongs to - Although Lin Senming is only the deputy chief designer of Ocean One, he also cooperates with Chang Haonan in software design. But the latter is not from the aerospace system after all. At the level of the Fifth Academy and even the aerospace science and technology, Lin Senming is the most important young backbone in the Haiyang-1 satellite project. Therefore, the development prospects of Ocean One, or the Ocean series satellites, will directly affect his own future and destiny. There seems to be only half a level difference between projects led by national bureaus and projects led by ministries and commissions, but the resources and priorities they receive are completely different. As for going one level higher... Then it would be necessary to establish a separate department to take charge of it, just like manned spaceflight. Lin Senming couldn''t even think about it. However, these are already commonplace for Chang Haonan. It would be better to say that he is in charge, even including several major projects he has participated in, and there is no one with a lower level. Now it''s just a return to normalcy. "Mr. Lin, your comrades from the Fifth Academy are responsible for the research and development of Ocean One''s hardware, so the subsequent software and hardware adaptation work still requires our cooperation." Chang Haonan looked at Lin Senming who was so excited that he was speechless, and decided to break the awkward silence first. The main reason is that the other party is holding on to me and won''t let go, so being frozen like this is not an option. "We must cooperate, we must cooperate." Lin Senming then remembered to put down his hand, and then quickly replied: "I really didn''t expect that a report meeting could have such a good effect..." Chang Haonan quickly put his arms behind his back to prevent the opponent from controlling him again: "At the results report meeting, most of the audience below were unprofessional. They were either from other fields or simply engaged in administration. To put it bluntly, what they wanted to see was how great our results were, not why we were so good. sharp." "So, the starting point is to show the achievements we have made so far in the most intuitive way. If there are really no achievements now, then try to describe a bright future... Of course, you have to have a way to make people believe that the prospect you are talking about is existing." "Actually, today is nothing. After all, Ocean One is a mature project that has already been established and even has a future development plan. At most, it is just the icing on the cake... If you really want to say it, it is still the No. 10 project of the year... uh... that year Before the establishment of the project, there were also the two report meetings before the establishment of the 921 Project, which can be called the real change of destiny..." In fact, what Chang Haonan originally wanted to say was that the aviation engine industry conference that year directly reversed the layout of the entire aviation industry in China, and even the birth of the Aviation Power Group can be regarded as one of its aftermath. But then I thought about it and realized that although these were all true, what I said would inevitably sound like boasting. So it was temporarily changed to Project 921 and Project 10... Fortunately, Lin Senming still hasn''t completely calmed down at this time, and he doesn''t care about the specific example Chang Haonan gave: "Mr. Chang, it''s not too early depending on the time. How about... rest for a while and have a meal in our agency canteen?" He knew very well that if he asked the other party to come outside, he would definitely be rejected. But even if the canteens of such large units do not have special reception areas like the Torch Group, they always have small stoves or similar configurations. In fact, logically speaking, Chang Haonan does not reject this kind of emotional contact within a reasonable range. In particular, his past connections were mainly in the aviation and machinery fields. As Lin Senming is the grassroots backbone of the aerospace system, there is absolutely no harm in having a good relationship with each other. But today Chang Haonan raised his hand and looked at his watch: "It seems a bit too early, it''s just after four o''clock..." He was a little hesitant, wondering whether he should go back to the office. Not from the Torch Laboratory, but from the Aerospace Power Group. In the past half month, because I have been busy with the contour segmentation algorithm, I have hardly paid much attention to the situation in the group. Lin Senming looked at Chang Haonan''s embarrassed look and immediately stopped insisting: "If Mr. Chang still has something to do, we can change the date. Anyway, there will be more opportunities in the future..." "That''s fine." Chang Haonan nodded: "After the Ocean One project is successful, I invite you to experience it in the canteen of Torch Group..." This sudden decision made Chang Haonan receive a phone call from Shengjing by chance. It was Liu Yongquan who called. What''s a bit outrageous is that after the call was connected, the other party was stunned for a moment: "Mr. Chang?" It seemed that Chang Haonan was not expected to be in the office at all. However, it seems reasonable. In the recent period, almost all matters that others contact me through the group level are communicated through Zhang Liangping. So to most people, he has indeed been "missing" for a while. "it''s me." Chang Haonan said as he took off his cotton hat and put it on the desk: "Today''s call, I guess... the test at Snecma has been completed?" Chang Haonan glanced at the date and thought that it had been almost a month since the other party got the test sample, even if there was a long Christmas holiday in between. , it seems that there should be results. However, it turns out that he still overestimated the French''s work efficiency under normal conditions... "That''s not true. When I contacted Dr. Vesta a few days ago, he told me that work there has just resumed and it may not be completed until around the 25th." Liu Yongquan explained: "Actually, it was Dassault. They contacted me through Snecma''s employees stationed in Shengjing." "Dassault..." Chang Haonan was unbuttoning his coat with one hand at this time. He couldn''t help but stop after hearing this answer: "How did they find you directly?" Although the two companies are cooperating on the Falcon Z project, this project is directly connected to Dassault by the Aerodynamics Headquarters. It does not have to go through the Shengfa Group one more time like the M88 project. Therefore, logically speaking, even if something happened, one should not go directly to Liu Yongquan beyond his level. "Hmm... I feel like it''s just a casual chat, and there is no intention to issue a formal document, so it''s not convenient to contact you or other group leaders directly..." Liu Yongquan first made some speculations, and then continued: "Those people went around in circles with me for several times, but they never made it clear. However, they went around and around to test our views on the Indian LCA fighter jet." LCA Chang Haonan finally took off his coat and leaned back on the chair. The sudden mention of this unpopular model made him a little confused. At this time, Liu Yongan added: "In addition, they also accidentally mentioned that the Indians seemed to want Dassault to help them develop an upgraded model of the aircraft..." "Huh?" Chang Haonan immediately sat up straight: "Is there such a thing?" "Well...it''s just that one of them mentioned a few words, and it may not be true..." Liu Yongquan quickly explained. "No, this was definitely not mentioned accidentally." Chang Haonan on the other side of the phone almost laughed out loud: "I guess Dassault is worried that if they help the Indians develop new fighter jets, it may affect cooperation with us, so they want to use you to judge our country''s attitude towards the LCA model." After his analysis, Liu Yongquan quickly reacted: "If that''s the case...it does make sense..." The two projects that Dassault Aviation is currently looking at are all tied to the Aerospace Power Group. In this case, no matter how high the price offered by the Indians, the former will still have to weigh it. "Then...I don''t know what you mean?" Liu Yongquan asked. "Is this kind of thing...I am definitely not the one who can make the decision." Chang Haonan did not give an answer immediately. This matter involves three countries, and if it is put on the line, it may affect foreign relations. Therefore, it is impossible for Chang Haonan to make a decision directly by overstepping his authority. That''s pure suicide. After a short pause, he changed the topic again: "However, I will make suggestions to my superiors on this matter. Just wait for my notification." Since Chang Haonan had said this, Liu Yongquan had nothing to worry about and immediately replied: "yes!" "Attention, before I give you a clear answer, you should try not to talk about this matter with the French personnel." Before hanging up the phone, Chang Haonan specifically asked: "If they take the initiative to talk to you, then..." "Just go around in circles with them, I understand!" Liu Yongquan came directly to answer the questions. "It''s good to know." Chang Haonan smiled and shook his head, hung up the phone at the same time, and then took out a piece of manuscript paper from the drawer of his desk, ready to start writing a report. If this happened to other countries, Chang Haonan would probably really consider stopping the French. After all, military technology transfer is more sensitive than pure arms sales. The impact is also more far-reaching. But India Especially LCA Its really hard to say. Chang Haonan felt that instead of cutting off all hope of the other party, it would be better to let the other party continue to waste resources on this model The LCA in his previous life did not really form combat effectiveness until his rebirth, and the subsequent improved MK1A type is also far away. As for the heavily modified MK2 type... It only exists in legends. Moreover, even if the Indians on this timeline are a little more cautious and have tinkered with LCA in advance... does not matter. A large number of parts and raw materials for this model are imported from the West, resulting in the price of a "domestic" light aircraft being comparable to that of an imported heavy aircraft. In other words, for every additional LCA the Indians have, there will be one less Su-30MKI. Chang Haonan can still settle this account. Therefore, his advice is very straightforward - Ignore those Indians and let them do whatever they want. (End of chapter) Chapter 969 Shocked French Chicken all year long! Chapter 969 shocked French Chicken for a whole year! at the same time. Paris France. Snecma Group. Assistant Arthur Mondock placed a test report on Ian Vistas desk: "Doctor, this is the test report of the sample, please take a look." Although Vista and Liu Yongquan have said before that the test will not be completely completed until the end of this month. But in fact, he still left himself some room for maneuver. In fact, starting several days ago, the testing work has entered the last step, which is the working temperature test. According to Vista''s schedule, if everything goes well, the results will probably be available within the next two days. As long as it is completed, the report can be signed and handed over to the Chinese people so that they can start the next stage of research and development. "Finally the results are out..." He looked at the folder on the table and couldn''t help but breathed a sigh of relief. Immediately afterwards, I was ready to briefly check the results and then sign. However, when Vesta was actually about to open the report, he suddenly realized that his mentality at this time seemed a bit complicated. On the one hand, the core engine of the M88-3 can be said to be Snecma Group''s flagship product in the field of turbofan engines for at least the next 10-15 years. It is best if everything goes smoothly. Especially if the SeA series engines can break the monopoly of Rolls-Royce and Honeywell in the field of business jets, Vesta himself, as the project leader, may also take a further step within the company. But on the other hand, there was a little bit of expectation in his heart. I hope that the Chinese design will make some mistakes in some less important places - Since this report can be sent to him, it means that there must be nothing wrong with the important points. The main thing is that the other party''s design efficiency really breaks through the common sense. During the previous time in China, Vesta even felt that the professional experience he had accumulated over the past few decades had been challenged. In this case, it seems more reasonable to have questions... With this awkward mood, he took a deep breath and suddenly opened the folder in front of him. On the cover, there is only one title. "M88-3 Turbine Disc and Turbine Blade Sample Test Report" Regarding the overall condition of the engine, Vesta already knew it by heart, so he skipped the previous nonsense such as model introduction and turned directly to the test results section. "Dimensional specifications, by..." "Mass distribution, by..." "Tensile strength in the cooled state, by..." As expected, several pages of content all meet the requirements. The results of some of the installed tests are somewhat different from those when Huaxia tested the blades alone, but this is a normal difference caused by different working environments, and it does not exceed the specified performance range. It can be said that even if you want to find fault with the eggs, there is not much room for maneuver. "It''s really...really..." Vesta sighed helplessly while turning the pages. He already doesn''t know how to organize words. The entire model, from design to production, completely exceeded his expectations. Including performance as well. "Um?" Just when he was about to restructure his mentality, he suddenly found a corner mark in the upper right corner of the "Operating Temperature" entry on the next page. Generally speaking, this means there is a problem that needs additional explanation with comments. Vista frowned, feeling somewhat conflicted. However, the movement of his hand was not slow at all, and he turned directly to the last page Generally speaking, the annotation content will be marked here. He quickly found what he wanted: "Note 1: 1840K is not the maximum working temperature of the sample, but it already meets the testing requirements. Further testing requires replacing the combustion equipment before proceeding." "Not the maximum operating temperature?" Vista hesitated for a moment, then raised his head and prepared to ask Mondoc about the specific situation. However, the latter had been paying attention to Vesta''s situation for a long time, and before he could ask the question, he answered directly: "Currently, our test equipment can only obtain a stable combustion temperature of 1840K. If it is set to above 1850K, the data will be very unstable." "Engineers conducted a round of testing using a setting of 1880K. The actual temperature has been fluctuating between 1820K and 1870K. The results showed that the submitted samples could withstand temperatures within this range under working conditions. However, the conditions did not meet the test standards. , so I didnt write it in the report..." After hearing this, Vesta was dumbfounded. "?" "Does this mean our testing conditions are too conservative?" When setting the technical specifications of M88-3 before, both parties decided to increase the operating temperature by 100K, which Vesta already felt was quite an exaggeration. After all, it is very difficult to achieve a vortex front temperature increase of more than 100K by means of heat insulation and heat dissipation alone without replacing the turbine base material. Basically, there must be cooling technology that is more than one generation different. If the Chinese came up with a radical impact cooling, or used a double-wall design, that would be relatively normal. But for both air film cooling, there can be such a big performance gap... At least in past theories, it was almost impossible. But now, the iron-clad experimental results are right in front of him. That can only mean one thing. There is something wrong with the past film cooling calculation method. "No wonder they design so fast..." Vesta felt that he seemed to be close to the truth The Chinese people should have developed a film cooling theoretical system that is different from the current mainstream, thus surpassing other countries at the most basic research level. Otherwise, if we rely solely on engineering experience, it would be impossible to overtake the established aviation powers in such a short period of time. Mondoc, who was standing opposite, naturally didn''t know about Vesta''s brainstorming, and just answered the question asked by the former step by step: "Yes, but what did the test workshop tell me? If you want to obtain a higher stable combustion temperature, you must either replace the fuel nozzle with a better atomization effect, or replace the fuel with a higher combustion temperature..." Vesta waved her hand: "There is no rush to measure higher temperatures for now. The turbine front temperature setting of M88-3 and SeA650 is between 1830-1850K. The measured temperature of 1840K is in line with the design standards." "Now it is enough to know that the film cooling technology developed by the Chinese people has the potential to be further improved..." He said slowly while touching his chin. At present, due to the significant reduction in the expected number of M88-2 orders, coupled with the addition of an unexpected SeA project, Snecma is already relatively tight in terms of funds. Therefore, for Vesta, as long as it can complete the task at hand, there is no need to create extraneous matters. For further work, it will not be too late to wait until we see the money back from these two models. "Doctor, since there is no problem with the test results, should we simultaneously report the situation to China Aerospace Power Group...and of course Dassault?" Seeing that Vesta was reluctant to give further instructions, Mondoc had to take the initiative to ask. "Dassault can notify them immediately so that they can prepare to test the Rafale in the technical state of the F2. After the hot-end modification is completed, I estimate that it will be installed soon..." Vesta answered while tapping her fingers gently on the table: "The Chinese side will wait a few more days. I told them before that it will end around the 25th... It''s not good to go too early..." "clear." Mondoc nodded, then turned to leave. But he was stopped by Vesta from behind: "etc." "PhD?" Mondoc stopped. "I remember that in addition to Rafale, Dassault is also selling the Mirage 2000-9, a deeply improved version of the Mirage 2000, to several countries. By the way, could you please ask them if there is any need to continue to increase the thrust of the M53 engine?" Vesta said as he took out a few pieces of paper from the small bookshelf next to him. On them were printed numerical calculation results, with a lot of handwritten content next to them: "I roughly calculated during this period that if we use the experience we gained from studying the M88-2 engine to improve the M53 engine, we can probably increase the thrust by about 5% without affecting stability and life." (End of chapter) Chapter 970 Now one is going down and the other is g Chapter 970 This time one is going down and the other is going up. Mondock took the calculation results in his hand and took a brief look at them. He found that they were performance calculation results of the M53 engine after replacing the high-pressure compressor and turbine blades. Obviously, Vesta, as a veteran Snecma engineer, has insufficient experience in the development of dual-rotor engines, but he is still quite good at using the techniques he has learned to go back and optimize his old works. Of course, as a single-rotor model, the M53 cannot reproduce all the design elements of the M88-2. Therefore, the performance improvement is not very large. Fortunately, cost control is very good. Compared with the currently mainly produced M53-P2, there is basically only a normal cost increase caused by inflation. It is quite attractive for users who want to modify the Mirage 2000-9. "Doctor, do you need to mobilize some engineers from CFM International?" Mondoc folded several pieces of paper twice and put them into the inner pocket of his coat, while asking again: "After China has completed the core machine design work, we have to put fan research and development on the agenda as soon as possible, otherwise the new engine may not be able to catch up with the Falcon Z''s first flight." The vast majority of CFM engineers are not employed by GE or Snecma at the same time, so there is no such thing as a "callback." However, some of the important management and technical leaders were sent by the two parent companies. In terms of developing civilian turbofan engines, CFM International does have more experience. Just on CFM56, French work is mainly focused on the research and development of the cold end including fans. It almost completely overlaps with SeA650. If we can get a wave of feedback, the work progress will indeed be accelerated a lot. However, Vesta did not nod immediately. Although there have been some discords between Snecma and General Electric in the past few years, the CFM series engines, as a cash cow for both, have basically not been directly affected. After all, it is not a listed company, and it does not involve the issue of investor confidence affecting the stock price. However, in the long run, there is always a question mark as to whether the two parties can continue to maintain this close cooperation on the next generation of CFM56 products. Mundock''s suggestion to reverse human behavior from CFMI will undoubtedly further aggravate the level of distrust between the two parties. If problems arise in the otherwise stable CFM International, it would be equivalent to a loss of blood at most for General Electric, which has a large business. But for Snecma, whose capital chain is extremely tight, it would be an amputation at least. . "You can try, but don''t make it too obvious..." In the end, after weighing the pros and cons, Vista chose a compromise plan. "Contact Dr. Patty Grant and ask him to arrange for an absolutely reliable technical team to come back. The scale does not need to be large, even 3-4 people will do." "Is this... a little too little?" Mondoc was a little confused. An aerospace design team, even if it is just the cold end, usually requires three-digit technical personnel, not counting the non-core participants who are indirectly involved. With 3-4 people, it does seem a bit stretched. "enough." Vesta stood up with support on the table and stretched his muscles a little: "As a small engine for business jets, the overall design of the SeA series engine is not even a medium bypass ratio. In fact, it is a small bypass ratio model. Moreover, the M88-3 is not the M88-2. The core engine level is already similar to the CFM56 There is a certain difference. "In short, what we need most now is not any specific technology, let alone making minor repairs based on other people''s designs, but referring to CFM''s R&D experience and management model, so there are a few people who have participated in project planning. It is enough to participate with the management people, so that you can also take turns to provide some support for reasons such as vacation. If there are more people, it will be troublesome..." As Vesta deployed its tasks one by one, two projects, Rafale F2 and Falcon Z, which had been dormant for several months, also became active. Especially the former. Almost at the same time as it confirmed the basic requirements for the hot-end performance of the M88-3 engine, Dassault released a specific timetable for delivering the upgraded Rafale C fighter jet to the French Air Force, and re-released the basic performance indicators of the Rafale in accordance with the F2 technical status. . Although it is impossible to shake out the specific performance such as the flight envelope, the upgrade is so large that even if you only watch a promotional video, you can feel that it is completely different from the previous F1. Not to mention anything else, the improvement in the three indicators of thrust-to-weight ratio, climb rate and bomb load is enough to make many users who have not yet made a final decision reconsider their model selection. In fact, at Chang Haonan''s special request, Liu Yongquan also successfully verified the built-in permanent magnet fault-tolerant power generation technology on M88-3. The principle of this technology is to cancel the contact rolling bearings, lubrication system and mechanical actuation system on the engine support shaft, and replace them with non-contact magnetic bearings and a built-in integrated starter generator installed on the crankshaft. In this way, additional power generation can be provided without affecting thrust. Secondly, the bearing structure with the highest failure rate in the aerospace engine system can be eliminated, greatly simplifying production and maintenance operations and extending the mean time to failure. Of course, it is only a technical verification on the M88-3, so the mechanical structure is still retained for backup. Nevertheless, this system can provide an additional 3.5kW of generating power for each M88-3 and SeA650 engine. Faced with such a surprise, Dassault even considered replacing Rafale with a radar with better performance. But in the end, it was abandoned due to the too narrow size of the machine head in the original design. Therefore, F2 still maintains exactly the same conditions as F1 in terms of avionics system, becoming a complete mechanical upgrade. But even so, it''s definitely not good news for its main competitors... A few days later. UK, Cranfield University. Professor Roger Elinor was meeting in a small conference room with two other senior technical staff from Rolls-Royce and BAE Systems. "Professor, we have indirectly confirmed the authenticity of the news through some special channels." The speaker was Tony Alder, a project manager in the aviation department of BAE Systems, who is mainly responsible for the development of the EF2000 fighter jet with several other partners. "In other words, the information they released a few days ago was not just a publicity strategy?" Professor Elinor confirmed while playing with a pen. "I''m afraid so." Alder nodded: "If the risk of deformation of EJ200 under large overload conditions cannot be completely solved, I am afraid that EF2000 will not have a significant performance advantage compared to the upgraded Rafale..." As one of the core leaders of the project, he is certainly aware of the hidden flaws in his own products. Currently, Typhoon mainly limits maneuverability within a specific envelope through settings at the flight control level. But after mass production is delivered, the problem cannot remain hidden. Hearing this sentence, Eleanor immediately fell into deep thought and remained silent. As a player who took over and wiped the **** halfway, he has actually greatly improved the structural problems of EJ200. But his poor foundation has nothing to do with him. Seeing Elinor not talking, Alder also knew that this problem might not be solved in a short time, so he continued: "In addition, we have also confirmed that the Falcon Z project currently being developed by Dassault will use special power developed based on the M88 engine core machine, rather than using off-the-shelf products on the market." "Of course, this news was shared with us by Honeywell Group, and its reliability needs to be further verified..." At this time, Luke Norris, who had not spoken just now, suddenly interrupted him: "This matter... we have actually expected it for a long time, but we don''t need any verification. After all, Falcon Z''s public partners include Snecma and China Aerospace Power Group. They are obviously preparing to solve the power problem themselves." "What I''m more concerned about is whether their model will pose a threat to our business in Germany." At this moment, Rolls-Royce has also seen the trend of larger and longer-range business jets, so it is jointly developing the upgraded BR710C and the BR725 small bypass ratio turbofan with greater thrust with the BMW Group. engine. Expected launch customers will include Bombardier and Gulfstream, the two kings of business jets. At the same time, potential users of this series also include the U.S. Air Force- They have always hoped to replace the B52 bomber with a brand-new power source to replace the TF33 series engines that have been patched for half a century. Although the number of B52 fleets is small, after all, each aircraft has 8 engines, so the total number is considerable. Originally, there were no competitors in this segment. But now that a Frenchman appears halfway, it will be more uncomfortable if the market is robbed... (End of chapter) Chapter 971 Guessed it, but not completely Chapter 971 I guessed it right, but not completely. In fact, while the British felt threatened, Snecma on the other side of the English Channel was not as joyful as the former imagined - For Dassault and Aerodynamics Group, as soon as Vesta signs off, the M88-3 engine turbine component testing can be considered over, and the next step is to enter the next phase of work step by step. However, for Snecma himself, it was far from the case. Dont forget, in order not to delay the critical time node, the samples used in this round of testing were all directly provided by China. So now the most we can confirm is that "there are no problems with the turbine components designed and produced by China." But what do the French make themselves... Don''t know yet. Therefore, after sending the test report to the two upstream and downstream partners, Vesta almost had no time to rest and immediately turned its attention to the trial production workshop. The materials, coatings and production processes used in the M88-3 turbine itself have not changed at all compared to the M88-2, with only slight differences in the outer contour parameters. But it is not difficult for established industrial countries to solve. In fact, from beginning to end, the semi-finished blanks used by China were provided by Snecma. Therefore, the only technical difficulty that needs to be overcome is the final manufacturing of the air film holes. Since the end of November last year, when Vesta brought relevant technical data back to France, Snecma''s production department has begun to verify the process parameters of drilling processing in accordance with the production requirements provided by China. However, it encountered huge resistance at the beginning, resulting in almost zero progress in the first few weeks. Not to mention good products, not even complete scraps were produced. Later, as the samples provided by the Chinese arrived, Vesta focused on the most urgent testing tasks. Only now that all other work has come to an end can we start to focus on production-level issues again. "Doctor, these are the blade samples we made using different processing methods and processing techniques in the past month." Gene Duflo, the person in charge of trial production, led Vesta to a workbench, pointed at the dozens of turbine blade samples densely spread out on the table and introduced: We have checked the design documents and found that although the specific hole shapes involved in different parts are different, the basic characteristics and properties are the same, so in order to speed up efficiency, we all used blades with smaller area and thickness for trial production. " Vesta didn''t reply immediately, but just nodded, which was considered to be recognition of the other party''s choice. As long as the holes in the blades are clear, the combustion chamber and the turbine disk are basically the same. "Is this all?" After looking down for a while, he raised his head again and asked Duflo. "That''s not true." The latter shook his head: "There are also some samples that couldn''t even be successfully punched, so they''re not here." "In general, if production efficiency is not considered, we can produce products that meet the requirements. Of course, at present, we can only say that they meet the requirements in terms of specifications. After all, they have not been systematically tested." While talking, Duflo took out one of the leaves from a pile of leaves and handed it to Vesta. It was of course impossible to tell with the naked eye whether the inner wall of the air film hole met the requirements, so Vesta did not do anything extra and just took a rough look at the outer surface. He noticed that at the base of the blade, there was the word "EHB-29" written on it. EHB The movement of Vesta''s hand stagnated slightly: "You changed the process?" In the past, Snecma''s common process for processing air film holes was tube electrode electrolytic machining, and the sample abbreviation was generally TEE-xx. And more importantly, he could not see the annular etching marks left after the tube electrode processing around the air film hole - This trace only remains on the surface of the thermal insulation coating and will not affect the base material. The area around the air film hole is already a relatively low temperature location, and the requirements for thermal insulation are relatively low. Therefore, unless there are special requirements, an additional coating will not be added after processing. "That''s right." Duflo nodded helplessly: "We have tested many times using tube electrode electrolysis, but the internal shape of their channel is too complex and the hole depth is relatively large. There is no way to avoid secondary corrosion caused by the gap surface on the opposite side of the electrode." "Furthermore, during the electrolysis process, the sodium nitrate solution will precipitate insoluble salts. In the past, we processed fan-shaped through holes, and even if there were salt crystals precipitated, they could be easily removed. However, this is also because the internal structure of this hole is too complex, and there may be some problems during the processing. There is a probability of more than 90% that the processing channel will be blocked. If the blockage is not processed in time, it will cause discharge breakdown. Not only will the workpiece be scrapped, but even the electrodes may have to be replaced..." "So later, we simply switched to the electro-hydraulic beam machining method. Because during the machining process, the electro-hydraulic flow will rush towards the workpiece at high speed, so no matter how complicated the inside of the hole is, there will be no clogging problem. This debugged about half of the parameters, we have obtained the first sample that fully meets the standards. He said and pointed to the EHB29 in Vesta''s hand. "You just said...if you don''t consider production efficiency..." Vesta looked at the blade in his hand and said slowly: "You mean the electro-hydraulic beam processing process is very cumbersome?" "yes" Duflo sighed, then replied: "Theoretically speaking, electro-hydraulic beam machining is good at processing tiny holes with special angles. The diameter of the air film holes is calculated in millimeters, which requires repeated hole expansion in multiple stages. There are many air film holes on each blade, so processing The time has increased exponentially. "The sample you have in hand, not counting the process preparation stage, the production alone took almost a day and a half... Calculating this, it will take us about 45 days to complete the processing of all the components required for an engine..." After hearing this answer, Vesta couldn''t help but curled her lips. Although the demand for military engines is not high, building 9 units a year is too abstract. Even if the proficiency issue is taken into account, the mass production speed will be doubled. 18 units a year is still not enough. Not to mention that there will be civilian models derived from it later. You know, when they first came to China, they originally just wanted someone to help solve the reliability problem of the M88-2. As a result, later on, it became a slippery **** to help with performance upgrades throughout the life cycle. Later, when it came to the SeA series of products, even half of the development leadership was taken away by the other party. If mass production in the future depends on others to complete key processes... "hiss" Vesta couldn''t help but gasp. He had never had time to think about it before. The result is now that I think about it. It seems...not completely unacceptable? Thinking of this, Vesta quickly shook his head, trying to drive away the random thoughts in his mind. At the same time, he warned himself that this must be affected by the sausage-slicing tactics. In order to divert attention, he quickly asked a new question: "Have you studied the samples provided by China? Can you refer to their hole-making methods?" In the past, Vesta would never have said such a thing. But now, even he himself has begun to refer to Chinese technology to upgrade the M53-P2, so it doesn''t matter. "Of course, after hearing the test results came out a few days ago, we asked for a few brand new blades from there for backup." As he spoke, Duflo turned to a computer and opened a Word document placed on the desktop. Vista also moved closer to the screen. "Judging from the conditions of the inner holes, we can indeed find some significant processing features, but when combined... it is difficult to determine what process it is." Duflo said in a troubled tone while scrolling the scroll wheel to turn down the page: "Through a high-performance microscope, the remelted layer can be vaguely distinguished from the inner wall of the air film hole. Although the thickness is very small and will not have any impact on performance, it is definitely a trace left by thermal processing. In addition, Huaxia''s technology The staff has previously published an influential paper in Nature, and the content is indeed related to laser processing. " "However, the entire blade has neither thermal stress nor micro-cracks, even if they only exist on the surface of the coating, and it does not look like a product of pure laser processing..." "I have read the paper you mentioned." Vesta suddenly interrupted: "Not only China, but the British are actually also researching technologies related to using high-energy lasers to process turbine components, but as far as I know... the situation is not optimistic." "Rolls-Royce''s Trent900 engine is stuck in processing efficiency. It is said that the yield rate is too low, resulting in high costs. This is also the biggest advantage of its rival GP7200..." In the field of civil aviation development, except for the core technical level, everyone is generally relatively open. Therefore, although Snecma cannot participate in the competition of this type of ultra-thrust-level aviation engine, it can still obtain relevant information in a timely manner as long as it is willing. However, Duflo was only a mid-level technician and was not very interested in things that he could not participate in, so he continued the original topic: "So... the direction we are currently considering is whether the Chinese will use composite processing technology, such as using electrolyte jets to assist laser processing. This can at least explain why they can control thermal stress and remelted layers." "Of course, this is a relatively new technology for us, and we may need some additional funds to purchase new equipment and test consumables." Tu Qiong dagger saw it belongs to yes. It is naturally impossible to develop new technologies without money. Of course Vista also understands this, but the groups funds are indeed somewhat tight right now. "How feasible do you think it is?" After hesitating for a moment, he finally spoke and confirmed. "Even if the pure electro-hydraulic beam process can be successful, then the efficiency of the composite processing will not be lower at least." Duflo''s first sentence was very straightforward, but then he changed the subject: "As for whether we can achieve the level of Chinese people...I can''t make a conclusion yet..." (End of chapter) Chapter 972 Production finalization and identificati Chapter 972: Production finalization and identification, and future plans It must be admitted that Duflo''s guess is very close to the truth. In the process developed by Chang Haonan, it is indeed necessary to immerse the parts to be processed in a neutral salt solution. In fact, for this step alone, if the workpiece can be washed with an electro-hydraulic beam coaxial with the laser instead of simply soaking it, the effect will be better, as in the former. It''s just that China is really lagging behind in terms of micro valve pumps, so it finally used such a powerful method to achieve miracles. However, the article Chang Haonan used to deceive his competitors was indeed too effective. Coupled with some fixed thinking, Duflo missed the most important part of the entire process - Pulsed laser. Of course, that paper can''t be valid forever. Sooner or later, everyone will find that the thermal effect is a dead end. Moreover, as China gradually begins to apply ultra-short laser processing technology on a large scale, relevant news cannot always be suppressed. But even if that day comes early, the impact will not be great. The principle of laser non-thermal processing is completely different from the common thermal processing in the past. Changing the continuous laser in the process to a pulse laser is not just a matter of changing the laser. It also involves the updating and development of a series of interaction models and numerical algorithms. Chang Haonan spent more than a year on and off to complete these tasks with the help of the system. Not to mention others. Furthermore, when everyone''s research reaches the final stage, Chang Haonan can rush to register several key patents before others. Unless someone is unlucky and tries out the correct result directly from countless permutations and combinations of process parameters. Then Chang Haonan will start to think about whether a second person is also cheating... However, at this moment, Chang Haonan could not pay attention to the movements of his friends and businessmen. Because, a very important node for him is right in front of him. "Mr. Chang, this is the situation explanation letter sent by the Services and Arms Equipment Bureau ten minutes ago." Zhang Liangping said and put an envelope with a note on it in front of Chang Haonan. Upon hearing this unit, the latter quickly looked away from the computer screen and took it apart as quickly as possible. The Service and Arms Equipment Bureau is a secondary unit under the General Armament Department. Although the rank is not very high, he is responsible for the finalization and identification of equipment for the Navy, Air Force and Second Artillery Force. If it is a non-key model, the second-level committee will be formed directly by them. Even if it is key equipment that requires a first-level designation committee, a lot of manpower needs to be transferred from it. In short, it is one of the most important departments of Party A. Therefore, although what was sent was an official letter rather than an instruction, it still had to be taken seriously. Inside the envelope is a red-headed document. [Our bureau has received feedback from various combat forces and flight research institutes on the turbofan 10 engine. A total of 36 prototypes and mass-produced aircraft of the two sub-types have accumulated installed operating hours of more than 10,000 flight hours, and the data records are good. The trial evaluation was excellent. The military representatives stationed in the factory had a clear understanding of the production process and determined that the process met the standards...] [Based on the above situation, our bureau believes that the WS10 engine has passed the military trial and production finalization test, and is qualified for subsequent assessment. Please sort out and submit relevant documents as soon as possible...] Originally, Chang Haonan was a little worried about whether there were any problems that he urgently needed to solve. The result was great news. "Okay, okay, okay!" Looking at the two thin pages of paper in his hand, Chang Haonan said three good words in a row, then looked up at Zhang Liangping: "Lao Zhang, please immediately draft a notice to 606 Institute, explain the situation, and tell them to prepare for the craft assessment in early February. If everything goes well, it is best to finish it before the Spring Festival!" To sum up the contents of this document, Party A has basically recognized the performance and stability of the turbofan 10, and stated that it can organize production and finalization appraisal Compared with design finalization, the current national military standards do not provide detailed provisions on the specific process of production finalization. It only states that production finalization should include four parts: organizational process and production condition assessment, troop trial, production finalization test, and organizational production finalization review and approval. Generally speaking, during the process of small batch trial production and delivery, the second and third items can be completed incidentally. Just like what was mentioned in the document just now. The relevant documents required by the Equipment Bureau to be submitted by the Aviation Power Group involve the remaining two items. This process does not include a large number of high-risk extreme tests like design finalization, but mainly some production site and written review work. It might even seem a little boring. But for Chang Haonan and the entire project team, it is the most important milestone. This means that the technical status of the two turbofan 10A/B models has been frozen, and small batch trial production can be ended and the mass production stage has officially entered. Don''t underestimate the difference between these few words. A lot of equipment, used until retirement, may still be labeled as "small batch". More importantly, after this, Chang Haonan can truly be freed from the Turbofan 10 project itself and devote his main energy to new challenges. Three weeks passed quickly. The production of Turbofan 10 is finalized and everything is going smoothly. It even went so smoothly that it was beyond Chang Haonan''s expectations. The date for the production finalization appraisal and production line acceptance meeting was finally set on February 10, the eve of the Spring Festival. In fact, it is almost the same as the graduation defense. When it is decided to hold an appraisal meeting, it means that the project is stable - Because the project in question simply wont get to this point. Of course, even so, Chang Haonan was fully prepared. Especially when it comes to ultra-short laser processing. The main reason is that I worry that if I explain it briefly, others will think it is not detailed enough, and if I explain it deeply, others will not understand. But it turned out that he still thought too much. Backed by extensive testing and usage data, there''s simply no room for flex. So much so that the speed at which each link is announced as having passed the certification is much faster than the speed at which the corresponding person in charge signs and seals it. The meeting that was originally planned to last from morning to night actually lasted less than three hours and had no content... As a result, the entire venue fell into a somewhat embarrassing silence. All that is left is the rustling sound of the pen tip crossing the page... In the end, it was Lu Zengwu, who was responsible for the entire finalization appraisal, who took the lead in breaking the silence: "Mr. Chang, I saw the process description document you submitted. It says that the maximum annual output is expected to be nearly 200 units?" For China, the last time it could produce so many engines annually was when it even built a turbojet 6 for the J-6... "Um" Chang Haonan nodded slowly: "Let''s make a conservative estimate... After all, the production type test requires us to submit a lower limit. In fact, there may be more." "But have you ever considered that most of this production capacity... is likely to be idle?" After Lu Zengwu finished speaking, he may have felt that this question was a little offensive, so he quickly added: "This...problem related to production and finalization is completely over. Now it''s just my personal curiosity..." Chang Haonan waved his hand to indicate his understanding: Right now, we may indeed not need so much aerospace production capacity, but as an enterprise we must not just look at the present, but must plan for the future in advance. "Among other things, the SeA series engines we are currently involved in research and development may account for 20-30 units of production capacity per year in two to three years. As my country''s economic development continues to accelerate, the frequency of aviation equipment upgrades will also gradually increase. Increase, and including the backup parts required for overhaul and maintenance, it is not an exaggeration to have a production capacity of 100 units per year..." In addition, we expect to launch a turbofan 10 aerospace modification project after the year. The Navys demand for this model is not small. Calculating this, as long as we add one or two additional businesses, we can fill this 200 million yuan per year. Taiwans production capacity may not be enough After saying this, not only Lu Zengwu, but also many people who were bowing their heads to sign also raised their heads. "Can we...need...100 engines every year?" Lu Zengwu''s eyes widened and he couldn''t even speak very fluently. Chang Haonan said in his heart that if I told you that China could produce more than 80 third- and fourth-generation aircraft of various types annually in the future, I would probably scare you out of your wits... Of course, these words are meant to be complained in the mind and cannot be said out loud. So, he had to change his approach: "Everything is possible in the future." "Director Lu, if you think about it, it doesn''t take long. When the Turbofan 10 project was first established, who could have predicted what it would be today five years later..." (End of chapter) Chapter 973 Invite him to a meeting! Chapter 973 Invite him to a meeting! ?After the production of Turbofan 10 has been successfully finalized, the project establishment work of Turbofan 20 and QC300 gas turbines... Of course it won''t start right away. Chang Haonan is not a devil. A buffer period must still be left for comrades. Otherwise, he doesn''t have to stress about completing the appraisal meeting before the Spring Festival. The day after Chang Haonan returned to the capital from Shengjing, it was already the 29th day of the twelfth lunar month. By the way, he also asked his parents to be brought to the capital. In this current year, the management of holidays is not so strict, so the holiday starts from the first day of the first lunar month, but in fact many less important positions no longer work on New Year''s Eve. Basically, the twenty-nine is the last serious working day. Since the lunar year and the natural year do not coincide, Chang Haonan doesn''t have much to do such as year-end summary. It is customary on this day to send written New Year greetings to leaders, subordinates or acquaintances in four capacities: myself, a professor at Beihang University, the general manager of Torch Group, and the chief planner of Aviation Power Group. It is similar to the New Year greeting messages many years later. Although most cases can be dealt with with unified copy and paste, there are still some people who need to pay attention individually. A handwritten signature is a great way to do this. As well as deploying some businesses that cannot be suspended even during the Spring Festival holiday. Such as external liaison and so on. Other partners dont celebrate the Spring Festival. For such a large group, it is impossible to completely shut down. When Chang Haonan finished processing the last congratulatory letter, he felt that his wrists were already a little sore. So, he called Zhang Liangping and asked him to come over and take the letters and seal them separately. Naturally, a dedicated person will be responsible for the subsequent letter delivery work, and Chang Haonan does not need to do it himself. Next, just wait for Zhang Liangping to come over, and then simply arrange the work for the next few days to him, and today''s task will be over. As New Year''s Eve approaches, even Chang Haonan is ready to catch a fish and go home early - I worked overtime like crazy when the Turbofan 10 was not finalized. Now that the Turbofan 10 is finalized, if I still work overtime like crazy, then isnt the Turbofan 10 finalized in vain? However. When the office door was knocked and then pushed open, Chang Haonan''s heart, which had been released, suddenly sank. Because, in addition to Zhang Liangping, standing at the door was Song Jingming, who was wearing a cotton coat and his shoulders were covered with snowflakes... At this time, the latter ran over to find him despite the heavy snow, obviously it was impossible just to pay New Year greetings. Zhang Liangping quickly collected all the letters on the table, and Chang Haonan motioned to him to go back first and talk about work later. As a result, only Chang Haonan and Song Jingming were left in the office. "Mr. Chang, I wish you a Happy New Year in advance!" Song Jingming came up and paid his respects to Chang Haonan. "Okay, happy New Year to you too." The latter waved his hand and motioned for the other party to sit wherever he wanted: "Let''s talk about something..." Seeing this, Song Jingming got to the point directly: "That''s right, we have basically completed the preparations for the Numerical Algorithm and Computational Science Conference you arranged previously, and the plan is to hold it at the end of March." "The entire process is basically in line with the highest-level academic conferences in other industries. There is nothing special about it. There are just two things that you need to confirm in person." As he spoke, he took out a notebook from his pocket and opened it: "The first is the numerical calculation competition before the conference. Since we promoted it at the end of last year, so far, the number of registered universities and research institutions has exceeded three digits, and many schools have multiple teams registered. The total number of participants It must be more than a thousand." "Considering that the competition will be held offline, should we consider setting up a preliminary round or group stage in several locations, and finally select only the top one-fifth or one-quarter of the teams to participate in the finals?" "After all...if there are too many people, it will also put pressure on our judging team and field management team." As the chief planner and directly responsible person, Song Jingming still felt a little guilty about arranging foreigners on this scale. I have never had any relevant experience in the past. Theres no need to make it so complicated. Fortunately, Chang Haonan has already considered these things relatively maturely: "The preliminary competition can be held online, with several relatively low-level questions set up, and each participating group submitting corresponding engineering documents, and we will evaluate the calculation results." "Besides...what''s there to worry about when there are so many people?" Chang Haonan smiled: "We don''t have to bear the travel expenses, food and accommodation of the contestants. They come in large numbers and they always have to spend money in the surrounding areas. Wouldn''t it actually promote the economy..." Torch Group still has 100 million points of influence in the numerical computing business. Regardless of competitions or conferences, except for a few big players, there is no need to attract foreigners to participate by issuing subsidies. As long as you set an honor with enough influence and a bonus, that''s enough. However, after hearing this, Song Jingming frowned with concern: "But Mr. Chang, our competition rules prohibit instructors from participating. If we adopt an online method, how can we prevent contestants from cheating?" Its easy, no need to avoid it Chang Haonan gave the answer almost without thinking: "Our preliminary round is not based on the overall proportion, but on the basis of the school or institution. That is, each school can only send one undergraduate group and one graduate group to participate in the finals." "In this way, no matter what form they use to pass the preliminary round, they will have to see their true results offline in the finals. If they find the instructor to cheat during the preliminary round, it will only make their school more embarrassing in the final stage..." This This idea actually puts the pressure of preliminary selection on the school''s head. If the school does not want to embarrass itself in front of its peers, it must ensure that the team it sends is strong enough and naturally has incentives to fight against cheating. Of course, it is impossible to completely guarantee fairness in online competitions. But first of all, the fairness aspect is guaranteed by the finals, so it won''t be particularly ugly. Secondly... The core purpose of this competition is not to sort participating schools into third, sixth, or ninth place, but to dig a hole for COMSOL to jump into Even if all foreign teams choose to use TORC Multiphysics software to compete, Chang Haonan himself will specially arrange for a few obscure domestic schools to use rival products. Combined with specially designed tricky questions... In short, after the final results come out, everyone will notice the serious loopholes in COMSOL Multiphysics'' CFD calculations. As for who is the champion There is a high probability that no one will pay attention to it anymore. "Then...there''s another thing." After writing down Chang Haonan''s instructions, Song Jingming took out a folder from his briefcase and placed it in front of Chang Haonan: "This is the list of special guests for this conference. Is there anything else you want to add or delete?" Special guest, as the name suggests. Compared with ordinary participants who submit their own applications and get approval, the people on this list are actively invited by Torch Group to attend the meeting. Of course, there are definitely differences in terms of treatment. At least it is impossible for these people to pay for their own food and accommodation like other participants. Chang Haonan opened the folder and found a list of three pages, front and back. In addition to the name and work unit, there are also main academic achievements, contact information, personal willingness to participate in the conference, and a headshot. There are about a dozen or so people who have confirmed that they can come. Basically, they are all the big guys in the field of numerical computing who are still active in the academic front line This field is too close to engineering and relies more on experience than theory in most cases. Therefore, it is not as easy to produce many famous names as in subjects such as mathematics or physics. Except for a few outliers such as Anthony Jameson and of course Chang Haonan himself, few people can single-handedly make any huge results that promote the development of the entire research field. Therefore, even Chang Haonan could hardly think of any missing candidates. He closed the folder and prepared to end the conversation: "That''s it..." However, at this moment, a name suddenly flashed in his mind. Harold Wong. It was the professor who contributed to the first issue of JCAS journal. The other party used a method called "high-order flux reconstruction (FR to unify several compact and high-precision formats that have appeared in recent years. This achievement did not cause much trouble at the time, and the number of subsequent citations could only be considered moderate, but Chang Haonan was very optimistic about its development prospects. It just needs to further promote its application scope. Originally, his plan was to invest some resources in this direction after the 2.0 version update of TORC Multiphysics was completed. But after that time, Chang Haonan seemed to have never seen papers published in the other party''s name. "Old Song." He reopened the folder, took out a pen, wrote "Harrod. Huynh" at the end of the list, and handed it to the other party: "There is a professor named Harold Huang at Ohio State University. I will send you his email address and research group URL later. You can contact him to see if he is willing to attend the meeting. If so, Become a special guest together. "Harold Wong..." Song Jingming took the folder: "Chinese?" "It doesn''t look like it." Chang Haonan shook his head: "It''s probably just a coincidence of the transliteration of the last name." "When I looked up information before, I seemed to have never heard of this name..." Song Jingming frowned slightly, worried that there might have been some oversight in his work. "You''ve probably never heard of it." Chang Haonan leaned back in his chair, turned around and looked at the snowy scene outside the window: "This guy is not very well-known in academia, and if he hadn''t happened to contribute to a paper, I wouldn''t have known the name." "But this kind of person is the one we should focus on..." After confirming that it was not his fault, Song Jingming breathed a sigh of relief: "Then, the reason for the special invitation in the meeting communiqu..." "Just write me to invite you." Chang Haonan answered simply and neatly. (End of chapter) Chapter 974 Do you want to celebrate the New Year to Chapter 974 Do you want to celebrate the New Year together? As the general manager of Torch Group, Chang Haonan is not only the sponsor of this conference and competition, but his own popularity is considered to be at the top level in numerical calculation and even the entire field of mathematics. Therefore, his decision to invite a special person can indeed be directly used as a reason. Moreover, there is this thing called the meeting communiqu. A summary will be issued after all agendas have been completed. At the level of Professor Harold Huang, even if he just reorganizes the paper published in JCAS last year and reports it, it will be enough to trigger a big enough response at the conference. Besides, although the other party has been keeping quiet for nearly a year, it is impossible for him to really stand still. Even Chang Haonan is looking forward to whether the other party will have any new results that have not yet been published during this period. As far as he knew, Professor Huang''s research direction did not seem to be very popular in the United States. During this meeting, we can also keep in touch with each other. When the conditions are mature later, we will consider digging over. These days, there are many foreigners who come to China to deceive people with unknown reputations, but there are too few who have real talents and learning. Torch Group can definitely set an example in this regard. On the other side, Song Jingming also quickly wrote down Chang Haonan''s request in his notebook, and then stuffed everything in his hand back into his briefcase: "Then Mr. Chang, I''ll be fine today. Just don''t forget to set the questions. If there is one more round of preliminary rounds, you should need to add another round of question banks..." "Don''t worry about the questions." Chang Haonan replied: "I have already prepared the questions for the finals. As for the preliminary round... I think we can let the special guests of this conference, including myself of course, each come up with a question, and then we will randomly draw from them." "fair enough" As the main person in charge of the entire conference including the competition, Song Jingming naturally knew that Chang Haonan was going to dig holes for COMSOL in the finals. But he didn''t understand technology and didn''t know how Chang Haonan actually operated, so he could only make one move on issues related to the topic. After handling the affairs of the Aviation Power Group, Chang Haonan finally got what he wanted and escaped in advance. But on the way, he asked Zhu Yadan to take a side trip to the Torch Laboratory In fact, there was no such arrangement originally, but when Song Jingming was leaving just now, he suddenly mentioned the competition test questions to Chang Haonan. After the latter finished answering the questions, he conveniently placed the floppy disk in the laboratory. After thinking about it, he decided to go get it. After all, according to the schedule, when the annual vacation is over, it will be time to enter the preparation stage for the preliminary competition. So the question really has to be done during the holidays. Fortunately, for Chang Haonan, who has experienced many battles now, it doesn''t take much effort. The trouble with setting questions in the finals is because the subject areas related to the questions must be specially designed, and even some specific numerical values ??must be specially designed, so that the calculation process involves high calculation weight issues, which can trigger the bug of the finite volume method. There is no need to consider this in the preliminary round. Just pick up two relatively simple projects from Liu Hongbo, and then abstract the problem a little bit. About an hour later, two vehicles drove into the gate of the Torch Laboratory one after the other. It is already early 2002, and the laboratory''s new location outside the Fifth Ring Road has been completely completed and put into use. Since the testing center of the laboratory is a national-level basic scientific research platform, in addition to the teachers and students of Chang Haonan''s research group, there are also many technical personnel from other units such as the Ministry of Science and Technology, the Beijing City Science and Technology Commission, and the Chinese Academy of Sciences. This works. Therefore, even though it is already the 29th of the twelfth lunar month and Beijing Hang University has already put on winter vacation, there are still many people coming and going in the laboratory compound. "Professor Chang, happy New Year..." "Mr. Chang, Happy New Year!" "Teacher Chang..." From the moment he got off the car, Chang Haonan received New Year greetings from almost everyone he met. Although he barely recognized any of them, they were so welcoming that he had to at least give them a nod. Walking into the main building like this, he even felt a little sweaty. The Torch Laboratory implements a separate access system for different areas. Among them, the above-ground part of the main building has the highest authority. Almost only people from his research group and a few people from the Torch Group and the Academy of Sciences can enter directly. Everyone else must apply in advance. Therefore, unlike the situation outside, it seems deserted here. "I''ve covered myself up so tightly, how come everyone can still recognize it..." Chang Haonan took off his hat and scarf and complained helplessly. Zhu Yadan, who had been following silently behind her just now, showed an expression that she couldn''t bear to look at: "I think it would be strange if they didn''t recognize you, Chief..." "And you have been dressing up in the same way since the beginning of winter this year... no, including previous winters. Even if you are someone you don''t know well, you should be able to remember it after meeting a few times..." "Uh..." Chang Haonan stopped suddenly and looked down at the hat and scarf in his hands. Although I don''t want to admit it, it seems to be the case. If Zhu Yadan hadn''t mentioned it specifically, he wouldn''t have even noticed it. "Actually, I have many sets of the same clothes that I change between. I don''t wear this one all the time..." "Of course I know." Zhu Yadan replied: "But I can''t control what others think..." This answer made Chang Haonan feel a little worried - In the eyes of others, I won''t be the kind of sloppy person who doesn''t change my clothes for a month... But soon, he suddenly thought of another more important thing: "Speaking of which, if I wear the same thing every day, will it affect your security work?" "For example, someone can recognize you from a distance." In fact, Chang Haonan didn''t understand this. He just watched some assassination-related movies in his previous life, and similar things seemed to be mentioned in them. "That''s not true. If it really had any impact, I should have warned you long ago." Zhu Yadan immediately shook his head: "After all, you are in a generally safe big city rather than on the front line, so the focus of security is still on the schedule and itinerary. As for after you get off the car...even if you change one piece of clothing every day, as long as others look at your standing position, it will actually be very different. Its easy to find key targets among the crowd. "Or in other words, if someone really pulls out a weapon within a dangerous distance, then the security work has been considered a failure..." After some explanation, Chang Haonan relaxed a little. It makes sense if you think about it carefully. When you speak on stage or attend some event, your name tag is written out and placed in front of you. You don''t need to rely on your clothes to identify your identity. Besides, no security guard can actually set up a sniper within 200 meters, right? No way? While chatting with Zhu Yadan, the two of them had already arrived at Chang Haonan''s office and found the floppy disk box buried deep in the drawer. In fact, at this moment, early forms of U disks have begun to appear on the market, but their application scope is relatively small and their stability is relatively poor, so they have not yet been fully promoted. When storage pressure is not high, floppy disks still occupy a relatively mainstream market. In fact, when Chang Haonan was just reborn, he thought about whether he should open a company in advance to register the USB flash drive and make a fortune from it. However, before he had time to start doing this, he had already taken off within the Science and Technology Commission system. Within the next two years, he even reached the position of chief planner of the Aerospace Power Group. Considering that the USB interface flash drive patent ultimately belongs to a Chinese company, it would be a bit ugly if it were to compete with one of its own people again. And there is a suspicion of bullying others. So, in the end, it was settled. "Professor Chang?" Just as Chang Haonan was recalling the past in front of a box of floppy disks, a familiar crisp voice suddenly came from the door. Chang Haonan, who was awakened, raised his head and found that it was Yao Mengna standing outside. "Teacher Yao?" Chang Haonan looked at Yao Mengna, who was wearing a beige windbreaker and slim jeans, and was a little confused: "Isn''t it already a holiday...you didn''t go home this year?" "Well...the previous project on polyphase diagram segmentation algorithm is about to be approved, so I have been busy in the laboratory for a few more days..." Yao Mengna explained: "I originally bought a ticket for today to go home, but... there was a sudden snowstorm over there, all flights were canceled, and train tickets were temporarily unavailable..." At the end, there was a bit of grievance in the ending. Zhu Yadan, who was standing next to Chang Haonan, could tell that this tone was at least 60% fake without even raising her head. Even the fact that I can''t go home may not be a real emergency. After all, people who really want to go home should check the weather forecast in advance. How could they find out that they can''t go back until the end of the day? From this further speculation, even if Chang Haonan does not come to the Torch Laboratory today, I am afraid that he will receive a call from the other party complaining at the latest tomorrow... But after thinking about it, she chose to shut up. Judging from past experience, no matter what happens next, it has nothing to do with security work... And Chang Haonan... Of course not as sharp as Zhu Yadan. Looking at the senior sister at the door, he almost said something mysteriously: "Otherwise... go to my house tomorrow to celebrate the New Year?" (End of chapter) Chapter 975 Excellent hunters often appear as prey Chapter 975 Excellent hunters often appear as prey... As soon as these words were spoken, Zhu Yadan next to him immediately put his hand on his forehead and looked helpless. There is really no resistance at all. Fortunately, he had already known about Yao Mengna''s situation and background through his superiors, and knew that the latter was definitely not up to no good. Otherwise, Gao Luo would have to remind Chang Haonan to pay attention to the risks. As for Yao Mengna at the door, she was even more overjoyed. As Zhu Yadan had guessed before, she deliberately stayed alone in the capital during the Chinese New Year this year. As expected, she will contact Chang Haonan later today and cry out about her "tragic experience" of being unable to return home because of the snowstorm - The heavy snowstorm is real, and the grounding of planes is also real. And given the speed of trains in this year and age, even if Chang Haonan could help solve the ticket problem, it would be impossible for her to get home before the first day of the Lunar New Year. Yao Mengna has even thought of a series of follow-up words to induce Chang Haonan to take the initiative to take her home for the New Year. In her speculation, the other party should be the only one in Chang Haonan''s home. Plus myself. Its New Years Eve again. It''s definitely not going to happen if something happens. But the warmth is definitely full. The actual situation was even smoother than Yao Mengna expected. She didn''t even have to make a phone call. When I was getting ready to get off work, I discovered that Chang Haonan appeared in the office... It seems everything is fate! Of course, if you are happy in your heart, you still have to be reserved on the surface. It''s impossible for you to ask me to go and I''ll go right away. That''s too casual. "This...is not very convenient..." Yao Mengna deliberately showed some hesitation. She had it all planned out. As long as Chang Haonan persisted casually, she would agree. However Chang Haonan actually nodded directly: "Well...if you find it inconvenient...that''s true." "Otherwise, if you haven''t prepared any New Year''s goods, I''ll ask Yadan to give you some tomorrow..." ? ? ? For a moment, both Yao Mengna and Zhu Yadan were stunned when his name was called. This plot direction...why doesn''t it feel right? Especially the former. The lines I had already thought about were stuck in my throat. I opened my mouth several times, but my mind was completely confused and I couldn''t think of anything to say to save the situation... In fact, this time we can''t blame Chang Haonan for having problems with his emotional intelligence. The main reason is that the information on both sides is not equal. In his opinion, although he and his senior sister are interested in each other, it is reasonable to think that there are parents and a younger sister at home during the Chinese New Year, and the latter is not the kind of extroverted player who is particularly familiar with each other. There is absolutely no need to force others to come over. However, Yao Mengna had no idea that there were other people in Chang Haonan''s family... Over and over again, the direction of thinking about the problem will naturally be different. At this time, Chang Haonan had turned back to look at Zhu Yadan: "Yadan, tomorrow you can bring the Spring Festival couplets, lanterns and food that the group distributed before..." Seeing that the opportunity she had finally created was about to slip away from her fingers, Yao Mengna no longer cared about being reserved at this moment, and quickly interrupted Chang Haonan''s forward wave of casting: "No...I''m not saying it''s inconvenient for me...I''m worried that it''s inconvenient for you..." "oh" Chang Haonan turned around again: "Then there''s nothing inconvenient for me...at home..." He originally wanted to say that my home is big and has many rooms, so it can accommodate a few more people. But when the words came to my mouth, I always felt that something was not right, so I finally swallowed them back. "Then...then I..." Although everything was planned by her, it was still a bit embarrassing for Yao Mengna to say it directly. But this time she didnt dare to go around in circles: "Should I go to your place tomorrow afternoon?" "Don''t leave it in the afternoon either." Chang Haonan stood up and pushed the office chair back under the table: "Ask Yadan to pick you up before lunch, otherwise it will be very troublesome for me to come in by myself." "Okay...ok." In order to avoid long nights and many dreams, Yao Mengna quickly agreed. Then he turned his head slightly to hide the unnatural blush on his face... "hiss" Seeing how Yao Mengna, who was still holding her head a little, had turned into this in less than three minutes, Zhu Yadan, who had just been complaining about Chang Haonan''s lack of enlightenment, couldn''t help but take a deep breath - A new possibility suddenly occurred to her. Excellent hunters often appear as prey... Could it be... Is all this part of Chang Haonan''s plan? After parting ways with Yao Mengna and returning to the car, Zhu Yadan did not immediately light the ignition as usual, but turned around and asked in a somewhat uncertain tone: "Mr. Chang, Teacher Yao... doesn''t she know there is someone else at home..." People, no matter what their identity or status, it is impossible to completely eliminate the gossip mentality. The same goes for Zhu Yadan. The reason why she asked this was because she wanted to know whether Chang Haonan had planned everything that happened today. Being reminded like this, Chang Haonan also reacted: "Indeed...she shouldn''t know..." "But it shouldn''t delay anything, right?" "It''s Chinese New Year, it''s lively when there are many people..." Zhu Yadan glanced at Chang Haonan''s expression through the rearview mirror. Everything is as usual, no clues can be seen at all. This made her have some doubts about her guess just now. However, as Chang Haonan holds a high position, it doesnt seem difficult to hide his true thoughts... Fortunately, gossip is gossip, and Zhu Yadan did not forget his job. After some exploration to no avail, he returned his attention to the road in front of him... Since the whole journey is on the outer ring road, there is almost no time wasted on the road. Chang Haonan had already arrived home before dinner. "Dad, Mom, I have a friend tomorrow who wants to..." As soon as he entered the house, Chang Haonan originally wanted to tell his parents that Yao Mengna would come to celebrate the New Year at home tomorrow and ask them to prepare an extra lunch and New Year''s Eve dinner for one person. As a result, as soon as he opened his mouth, he noticed a figure wearing a blue shirt sitting on the sofa. "Jia Yao?" Chang Haonan was a little surprised: "Don''t you have to be on duty this year?" Chang Jiayao had already registered with the guard, so she could get in by brushing her face. However, in her first year in the army, she was able to take a break during the Chinese New Year, which was indeed a bit unexpected. Chang Jiayao stuck her head out and looked at her brother standing at the door: "Our unit...the crews are over-provisioned, and as you know the problem in Figure 154, the frequency of missions is not high, so it is easier to apply for leave than other units." Chang Haonan thought about it carefully, and it was indeed true. As a passenger aircraft, the Tu154 is notorious for its ease of maintenance from a 21st century perspective. The situation becomes even worse after being converted into a reconnaissance aircraft. Although the Air Force ground crew can ensure flight safety through maintenance methods regardless of man-hours or costs, the dispatch rate... There is really nothing we can do. Fortunately, for a strategic reconnaissance aircraft, it is a bit excessive to say that it will last for three years after opening, but it will definitely be fine for three months. A low take-off frequency is not unacceptable. "Where are your parents?" Chang Haonan had already changed into slippers and came to the living room. "I went out for a walk. I said I was a little suffocated at home." Chang Jiayao was reading a magazine at this time and answered without raising her head. "oh" Chang Haonan just asked casually, and then prepared to go upstairs. Suddenly, Chang Jiayao paused slightly in turning the pages. "etc" She stopped Chang Haonan: "Brother, when you first walked in, it seemed like you had a friend tomorrow..." The latter also stopped: "I have a friend who can''t go home because of the snowstorm, so he will come to our house tomorrow to celebrate the New Year." There was absolutely no need to hide this kind of thing from Chang Jiayao. I can''t hide it anymore. "friend" Chang Jiayao''s eyes suddenly lit up: "Male or female?" Last time, Chang Haonan caught her and questioned her about her relationship with a certain male classmate. This time, she found an opportunity. "female." Chang Haonan answered very simply: "My senior sister is, of course, a colleague now." "Well" Chang Jiayao lost the interest to continue teasing This kind of thing is fun just to see the other person look embarrassed. Now that Chang Haonan is so candid, it becomes boring... "Is that... my future sister-in-law?" Her attention returned to the magazine. "Is this... I can only say it''s possible." Regardless of projects or relationships, Chang Haonan has no habit of popping champagne halfway. Chang Jiayao wanted to ask something else, but at this time, the sound of the doorbell ringing came from outside. Obviously, Chang Yuanchao and Zhou Li are back. Instantly, the expression on Chang Jiayao''s face became excited again. (End of chapter) Chapter 976 Meeting parents unexpectedly Chapter 976: Unexpected meeting with parents As soon as Chang Yuanchao and Zhou Li entered the door, they didn''t even have time to change their shoes, when they heard Chang Jiayao shouting at the top of her lungs: Dad, Mom, my brother said he would bring a girlfriend home for the New Year tomorrow! For a moment, the whole house and even the whole world seemed to be quiet. Chang Haonan showed an expression that he couldn''t bear to look at. He took three steps at a time and came to Chang Jiayao''s side. He reached out and pushed his sister back to the sofa. As for the old couple who just entered the house... For a moment, I even forgot to close the door, letting the cold wind keep pouring in from outside. After a while, Chang Yuanchao recovered from the initial shock: "What...what did you say?" This is asking Chang Jiayao. Comrade Lao Chang has just retired from the front line two years ago, and he is still sharp and healthy. It is obviously impossible that he really didn''t hear it. I just dont quite believe it. However, before Chang Jiayao could speak again, Zhou Li next to her looked at Chang Haonan more directly: "Xiaonan, your...girlfriend?" "Ahem..." Chang Haonan is a little helpless about his sister''s Spring and Autumn style of writing: "Not a girlfriend yet, she''s a girl, a friend." This answer Although it is negative on the surface. The inner meaning is also negative. But for the questioner, the effect is almost the same as affirmation. As a result, Zhou Li, who had been shocked just now, instantly showed a smile on her face: "It doesn''t matter, it doesn''t matter, as long as it''s a woman." "I''m not my girlfriend now, maybe I will be in the future..." While talking, the two of them had already changed their clothes and shoes as quickly as possible. On the surface, Chang Yuanchao didn''t seem as excited as Zhou Li, but he was quite curious: "Tell me, where does the girl live and what is her job now?" "How did you two meet?" "Is it because of work that you came to our house to celebrate the New Year, or because it''s snowing so hard that you can''t go back?" Even though Chang Haonan was used to big scenes, he was bombarded with a series of questions and was a little confused. "I am a colleague, and before that, I was my senior sister..." "Because it was snowing and the flight couldn''t take off, I thought about inviting her over to celebrate the New Year together..." Zhou Li, who arrived later, did not give him a chance to buffer: "Then do you know what she likes to eat?" "have no idea." Chang Haonan shook his head. "If you''re from the south, do your New Year customs differ from ours?" For Northeasterners, everything south of Shanhaiguan is "South". "Uh... I don''t know either." Continue to shake your head. "Sigh...Why don''t you, a child, know everything about everything and don''t ask in advance..." Zhou Li sighed with a look of hatred: "You should have told us earlier so that we could prepare earlier... It''s already twenty-nine in the afternoon, and it''s too late to prepare anything..." Not to mention Chang Haonan who was in the middle of the two, even Chang Jiayao who was watching the excitement broke into a cold sweat. As for the former, its even more dumbfounding: "Mom... I just can''t get home in time. I''m here to celebrate New Year''s Eve, and I don''t really want to come..." "Besides, I haven''t seen any difference in what she eats. Besides, she has been in the capital for more than ten years, so she should be considered a native of the capital." "Just prepare as usual during Chinese New Year. Just prepare more dumpling fillings and noodles..." Hearing what he said, Zhou Li immediately raised her eyebrows: "How about that?" "This is your first time for a girl to come here. Don''t make people think that we don''t want to see you..." Speaking, he turned to Chang Yuanchao: "Hey, old man." "Do you have any red envelopes?" "No...she is two years older than me, and she is already working..." Chang Haonan weakly put forward his opinion. It''s not that I feel bad about the money. But this form looks a bit strange... It''s always like giving new year''s money to a child. "That''s different..." Zhou Li waved her hand without thinking: "Anyway, just listen to me. Mom has experience in this kind of thing..." In the end, even Chang Jiayao came over to join in the fun: "Brother, is my sister-in-law pretty?" Chang Haonan, who was almost numb, glanced at Chang Jiayao with a resentful expression and replied angrily: "Won''t you know when we see you tomorrow?" However, as soon as he finished speaking, the latter patted the pillow in his arms with joy as if he had heard something extraordinary: "Just tell me, my brother has no objection to the title sister-in-law..." "???" Chang Haonan finally couldn''t bear it anymore and reached out to knock Chang Jiayao on the head... If she hadn''t omitted that crucial word, maybe the situation wouldn''t have developed to this extent. It was obvious that although Zhou Li had never met Yao Mengna, she was already considering her treatment as a prospective daughter-in-law. Of course, Chang Haonan himself does have this idea... However, I still feel that the progress is a bit too fast... Anyway, the next day came quickly. Early in the morning, Chang Haonan was picked up from bed by his second elder. Then, while preparing various New Year utensils, I was asked questions like "When will that friend of yours arrive" every half hour. In the end, Chang Haonan, who took the trouble, chose to compromise and asked a driver to pick up Yao Mengna in advance. Even at the beginning of this century, the housing prices in the capital were actually in a situation that made those who heard it sad and those who heard it shed tears. Yao Mengna, who had just graduated and had only worked for two years, naturally lived in a single dormitory provided by Torch Laboratory. So the situation is similar to yesterday, all the way to the outer ring, smooth and smooth. Even when Zhou Li was just starting to prepare lunch, she heard the doorbell ringing outside. "Quick, you have to open the door." Chang Yuanchao pointed to the entrance and gave his son a gentle push on his back. In fact, since Chang Haonan took the initiative to invite Yao Mengna to his home, he was not nervous at all. As a result, I was stunned because I was tormented by the old couple, and I felt a little unsure. However, now that everyone else has arrived at the door, it is too late to say anything. Therefore, he took a deep breath, then turned around and walked resolutely to the door. At the same time, Yao Mengna was standing outside the door, holding several large boxes of gifts in her hands, and she was beating a drum in her heart. As a party that seems passive but is actually active, she now knows it very well. If we continue to count on Chang Haonan to make the first move, then the two of them will probably have to live alone together. Therefore, you must muster up the courage to do something first. And today, this occasion with only two people is perfect for getting closer... When she was on the road just now, she had already started to build herself up mentally. I originally thought there would be no problem, but now that things have come to a head, I am panicking again "When he comes to open the door later, should I be more enthusiastic..." "But will it scare people if you are too enthusiastic..." "What should I call him? Professor Chang seems a bit too unfamiliar..." "Call me by name directly? It seems like the span is a bit too big..." "Are you calling me junior brother like before..." "Also, what should I say in the first sentence..." "I asked my best friend yesterday, and she seemed to say that men can''t stand up to girls acting coquettishly, but what should I do if I''m not very good at this..." In the cold wind, Yao Mengna was so anxious that she was almost sweating. But at this moment, only a "pop" sound was heard. The door opened. "Sister, please come in quickly." In non-work situations, Chang Haonan is still accustomed to using this more casual address. And this also helped Yao Mengna solve a big problem. "Junior brother, happy New Year!" After entering Chang Haonan''s house, it''s hard to say whether it was because of nervousness or shyness. In short, Yao Mengna''s mind was already a little overwhelmed. The moment before opening the door, she was thinking about the advice she received from several little sisters last night - Learn to act coquettishly. Don''t come on too strong. Find ways to inspire the other person''s protective desire. Logically speaking, none of these three items can be wrong. But in the chaos, Yao Mengna subconsciously mixed all the above contents. And the external performance is... When Chang Haonan closed the door and was about to get her slippers. He said this in an extremely arrogant tone: "Junior brother...it''s so cold outside..." As soon as the words came out, not to mention Chang Haonan who almost fell to the ground, even Yao Mengna closed her eyes. "Oh my god...how could I make such a strange sound...it''s so shameful..." However. Whats even more shameful is yet to come. "Brother, is this the colleague you said was coming to your home for the New Year?" Just as Yao Mengna was about to open her eyes, a crisp female voice suddenly sounded in her ears. "?" Before she could figure out what was going on, a second, more mature female voice came from a little further away: "Xiaonan, let the guests in quickly, I''m holding your hand here..." "?" Yao Mengna began to realize that something seemed to have gone wrong. Immediately afterwards, there was a rich male voice Its not Chang Haonans: "Don''t be too restrained, just treat it as your own home..." "?" Finally, it was Chang Haonans voice: "Senior sister, just come here directly. What else can you take...it''s too foreign..." For a moment, Yao Mengna would rather her eyes could be closed forever Apparently, she got the situation wrong. Chang Haonan is not alone in his family. On the contrary, families spend the Spring Festival together. I met my parents out of nowhere today... And what''s even more terrible is. The words she just felt ashamed to hear must have been heard by everyone in the room... (End of chapter) Chapter 977 You two are quite good at playing. Chapter 977 You two are quite good at playing... The moment she finally decided to open her eyes and face reality, Yao Mengna had only two words in her mind: Spicy pills! If other people''s parents hear what you did just now, will they be regarded as an immoral person? Moreover, the expected world of two people suddenly turned into a three-chamber trial, but I was not prepared at all... How to explain the relationship with Chang Haonan? normal friend? How can ordinary friends go to other peoples homes to celebrate the New Year? Boy and girl? But it seems that the relationship has not been confirmed yet... For a time, countless thoughts poured into Yao Mengna''s consciousness, confusing her already chaotic brain like a ball of paste... However, when she really opened her eyes, what she faced was not the embarrassing scene she had imagined. In fact, although Yao Mengna felt as if a century had passed, only about ten seconds had passed from the time she entered the door to now. Moreover, because she said that sentence in an extremely low voice and spoke extremely fast. Therefore, except for Chang Haonan, the other three people actually didn''t hear it at all. When Chang Haonan heard this, he just thought that the other party really felt cold. After all, Yao Mengna only wore a turtleneck sweater and a long thin windbreaker in order to look good today. "The heating in the entrance area was not turned on. Once we entered the room, it quickly became warm." As Chang Haonan spoke, he helped the senior sister take off the outermost windbreaker and hang it aside: "There is cold air on the coat, and it will become even colder after entering the house." At this time, Zhou Li also finished washing her hands and walked over from the kitchen door. Although he is dressed at home, because he has been a teacher all year round, he still has a sense of calmness and self-respect. Yao Mengna, who was already as frightened as a deer, felt nervous again. I want to say hello, but I cant even speak clearly when I open my mouth. I almost bit my tongue. Fortunately, Chang Haonan quickly came to the rescue: "This is the senior sister I mentioned to you before, Yao Mengna, who is now my colleague." Then, he looked at Yao Mengna who was still a little shivering next to him, stretched out his hand and said: "This is my mom and my dad." "That''s my sister on the sofa. You should have heard me say her name is Chang Jiayao." Only then did Yao Mengna finally feel at ease: "Happy New Year to uncle and aunt..." "Jia Yao...it doesn''t matter if I call you that...Happy New Year." This time, Chang Yuanchao responded quickly and was the first to reply: "No trouble, no trouble, stop standing now and sit down." Then he looked at Chang Jiayao on the sofa: "Jia Yao, please sit down on the small sofa and make room." Faced with this excessive enthusiasm, Yao Mengna felt that she couldn''t handle it: "I''m sorry to bother you during the Chinese New Year..." "Look what you''re talking about... It''s the Chinese New Year. It''s more lively when there are more people. It''s just a pain for you, the kid, because you can''t see your family..." Zhou Li stepped forward with enthusiasm, and at the same time took out the red envelope she had prepared long ago from the front pocket of her apron - I even found someone to buy it temporarily yesterday: "Xiao Nan just told us yesterday that you were coming, and Auntie didn''t have time to prepare. Since it''s the Chinese New Year, I''ll give you a red envelope." Hearing this, Yao Mengna, who had just sat on the sofa, stood up quickly and waved her hands quickly: "No, no, no, I..." Before she could say any further words of rejection, the red envelope was stuffed directly into Zhou Li''s hand. Chang Haonan next to him also took advantage of the situation to help: "Just take it." "The paper used for this red envelope was specially found by my mother when she heard that you were coming over. If you don''t accept it, my mother will have to criticize me later..." After being bombarded with such words, Yao Mengna accepted the red envelope in a daze, half voluntarily and half forced: "Then...thank you, uncle and aunt..." After saying that, maybe he felt that it was not good for him to sit all the time when others were so enthusiastic, so he tentatively asked: "Auntie, how about...I...let me help you?" As he spoke, he rolled up his sleeves and prepared to follow Zhou Li into the kitchen. Naturally, Zhou Li stretched out her spoon and blocked the outside: "As long as Xiaonan''s dad is here to help me, the kitchen will become chaotic if there are too many people." "You''d better go chat with Xiao Nan and Jia Yao. You are both young people and have many topics in common..." After finishing speaking, he stuck his head out from the kitchen door and shouted at Chang Yuanchao, who was still in the living room: "Come and help!" The latter shrunk his shoulders, turned around and walked quickly to the kitchen, leaving the living room to the three young people. "My dad and mom have this kind of personality, they are more hospitable..." Chang Haonan couldn''t just say that my parents have regarded you as their potential daughter-in-law, so he had to explain what just happened by being hospitable. However, although he couldn''t say it directly, it was the turn of Chang Jiayao next to him to play a role: "Sister Meng Na, how long have you and my brother... known each other?" Although he usually behaves weirdly and unreliably, that''s just in front of his family. You know, after four years of studying at the aviation school, if you are still really stupid, then it can only be said that China''s military school education may have a big problem. At this critical moment, she is still very effective. If you call someone sister-in-law right from the start, it would be a bit too quick. No matter what, you have to lay the groundwork. In fact, until now, Yao Mengna was still a little dizzy. I followed Chang Haonan and sat on the sofa, and then began to think about what happened in the past less than ten minutes... First, I wanted to spend the Spring Festival with my junior brother. When I came in, I found that other people and their families were there. Then he accepted the red envelope inexplicably, and naturally sat next to his junior brother. The most terrible thing is that he didn''t feel anything wrong in the middle... etc Before entering the door, I had thought that I was the one who took the initiative, but now that I think about it, it seems completely... However, just when Yao Mengna was about to sort out the relationship, she heard Chang Jiayao''s curious question. "Well...probably, it should be almost six years..." replied the former. At the same time, I had to stop my thoughts. "Six years...now it''s 2002..." Chang Jiayao thought briefly: "That was 1996..." "ah?" Her eyes widened, pretending to be shocked: "You guys have known each other since my brother was a junior in college?" Although Yao Mengna had long since accepted the fact that Chang Haonan was younger than herself, seeing Chang Jiayao like this, she felt a sense of guilt for no reason as "the immeasurable senior seduces the innocent junior." "Actually, technically, it was my senior year." Seeing that Yao Mengna couldn''t cope with her younger sister, Chang Haonan quickly took over the conversation and at the same time stuffed the former with a pillow so that she could have a place to bury her head: "I had just joined Teacher Du''s research group at that time, and my senior sister was in her second year of Ph.D." "Wow" Chang Jiayao nodded slightly exaggeratedly. In fact, originally, she wanted to express her admiration for this matter. But Yao Mengna next to her sounded completely different. One is a senior and the other is a sophomore. To most people, it sounds like he is five or six years old... How can this be done? Even being three years older than Chang Haonan already made her a little concerned. If you are misunderstood by others as an old woman in her thirties who still wants to eat tender grass... Clarification, must be clarified! So, she quickly raised her head from the pillow: "I...I didn''t get a master''s degree. My teacher...just like your brother, I directly studied for a doctorate..." In fact, the subtext of her words is that she is not that old. But Chang Jiayao didn''t think about age just now, and she couldn''t understand the meaning now. She just meant that you are so awesome. Yao Mengna was so anxious that she almost burst into tears. Just at this time, Chang Haonan talked about some things from that year, and she suddenly recalled that when she first met each other, she said in the research group that she had met a senior... As a result, Fang Zhen, the eldest brother in the research group at the time, exposed it on the spot... His face turned redder instantly. Although Chang Jiayao didn''t know why Yao Mengna suddenly became like this, she also knew that she seemed unsuitable to stay as a light bulb, so she quickly found a reason to call her colleagues to say New Year''s greetings, and quickly ran back upstairs. For a moment, Chang Haonan and Yao Mengna were the only two people left in the huge living room. The former turned his head and looked at the usually cool and cold senior sister who was now blushing to the point of dripping with tears. Suddenly an adjective that had never been used on the other party flashed through his mind - Why do I feel so cute... "Sister?" He called out tentatively: "Jia Yao has gone upstairs." Hearing these words, Yao Mengna raised her head a little. I found that Chang Jiayao was indeed missing. This was a slight relief. After the surrounding quieted down, her brain gradually resumed operation. Then, he began to try to continue to review everything that had just happened. So she quickly recalled her various behaviors since entering the door... Yao Mengna even wanted to knock herself out with a stick. Its so embarrassing "It''s all your fault...Why didn''t you tell me in advance that there were other people at home?" In shame and anger, she picked up the pillow in her arms and patted Chang Haonan''s back gently. "You didn''t ask either?" The latter replied matter-of-factly. Then, before Yao Mengna could react, he suddenly changed the subject: "Wait a minute...I heard what you mean..." Chang Haonan showed an expression of sudden realization: "Senior sister, you didn''t think you agreed to come celebrate the New Year with me because you thought I was the only one at home, right?" "I" Yao Mengna was speechless for a moment. She wanted to say what if? But its a bit hard to say. I had no choice but to pick up the pillow again and repeat the action just now. The strength was similar to flirting. Chang Haonan didn''t feel anything at all, and naturally he didn''t bother to hide, letting Yao Mengna vent her little emotions. However, no one expected this. It''s at this juncture. The kitchen door suddenly opened... (End of chapter) Chapter 978 Professor Harold being targeted Chapter 978 Professor Harold was targeted Time goes back to about ten minutes ago. After returning to the kitchen, Zhou Li has been busy cooking, so naturally she doesn''t know what is going on outside. Originally, according to her expectations, it had only been ten minutes, and the three young people should have just become familiar with each other. On the contrary, Chang Yuanchao couldn''t help much because he couldn''t cook, so he wandered back and forth in the kitchen, almost scratching his head and ears in anxiety: "I''m talking about the child''s mother, how far do you think Xiaonan and this girl... have developed?" While speaking, he also moved closer to the door, as if he was ready to use his professional skills to poke at the crack in the door. As a result, before he could touch the door handle, his arm was hit hard with a chopstick: "What are you doing?" "If you have nothing to do, just pour me a pot of oil and heat it up for frying the meatballs later..." Chang Yuanchao, who was scolded, quickly retracted his hand angrily: "I also want to see the situation..." Although he said this, he still walked to the stove honestly, unscrewed the lid of the large bucket of peanut oil, and got ready to pour it into the pot. "How much further can it develop?" Zhou Li said as she opened the gauze covering the bamboo drawer and put the cold meatballs that had been steamed last night into a basin, ready to be fried in the pan later: "Look at the way that girl first walked in, she must be interested in our Xiaonan, but I guess... neither of them must have made it clear." "Oh... take your time, no matter what you say now, there is always something on your mind..." "Is it" Chang Yuanchao turned on the gas stove with a snap, and it was clear from his tone that he did not agree with Zhou Li''s judgment: "I think that although the two of them seem to have nothing on the surface, they actually have a very good understanding of each other." "Maybe it was nothing before, but as long as the window paper is broken, the progress should be very fast..." After hearing this judgment, Zhou Li curled her lips: "Come on, your son is just like you back then... If I hadn''t taken the initiative to go to the hospital when you were injured and couldn''t get up from bed, I don''t know when I would be able to get married..." "Ahem..." Seeing that his wife was going to dig out the old sesame seeds and rotten millet things again, Chang Yuanchao hurriedly coughed twice: "Actually... I just sprained my foot, so I lay in bed for two days..." "Um?" Zhou Lis hand movements stopped: "But your instructor told me..." "That''s why I asked him to scare you..." Chang Yuanchao used a chopstick to test the oil temperature: "Who knew he wouldn''t even make up a lie? He just said that I might not be able to get out of bed for the rest of my life..." "But the effect is really good. You came to our place the next day and said that for the rest of your life..." Before she finished speaking, Zhou Li kicked her hard: "How old are you? You still remember those things back then..." "I''ve long seen that there''s something wrong with you guys. You''re all holding back your bad intentions..." Although she said this, Zhou Li''s thoughts were obviously a little shaken. After thinking about it again and again, she saw that the oil temperature had not yet come up, so she temporarily put down the things in her hands and walked out the door. "Hey, didn''t you just let me out?" Chang Yuanchao was obviously dissatisfied with this behavior of only allowing state officials to set fires but not allowing people to light lamps. "I''m going out to get some seasoning..." Zhou Li directly gave a high-sounding reason. After saying that, he quietly opened the door a crack. Then I saw Yao Mengna and Chang Haonan sitting next to each other on the sofa. Chang Jiayao was nowhere to be seen. Yao Mengna was holding a pillow and patting Chang Haonan with the same force as tickling. "hiss" Almost subconsciously, Zhou Li didn''t care about the seasoning or not, and quickly closed the door. "Old man...you may be right..." As for the two people in the living room... From Chang Haonan''s perspective, he couldn''t actually see the situation in the kitchen. But Yao Mengna saw it clearly Just now, the kitchen door opened for a moment. And there seemed to be a figure flashing inside... That is to say. All are seen "What''s wrong?" Although Chang Haonan didn''t know what happened yet, he could feel the emotional change of Yao Mengna next to him, so he turned his head and asked curiously. "It''s over, it''s over... we''ve all been seen..." The latter had a lifeless expression on his face. He completely changed his behavior and sat upright on the sofa like a primary school student. "What was seen..." "We just...just..." Yao Mengna didn''t know how to describe it, so she could only point to the pillow in her hand: "When I was there, I saw my aunt come out of the kitchen for a moment, and then go back right away..." "puff-" Looking at the panicked senior sister, Chang Haonan couldn''t help laughing. "dare you laugh" "No...let''s make it clear first." Chang Haonan reluctantly suppressed his smile and pretended to be serious: "It was your unilateral action just now, and I didn''t do anything..." Oddly enough, I haven''t felt it in the past few years, but today I suddenly discovered that it would be quite interesting to tease this senior who is usually very cold and strong... "you" Yao Mengna is popular again. But having learned from the past, she didn''t dare to make any big moves again. Logically speaking, if she went upstairs to find Chang Jiayao, who was of the same sex, she might feel slightly better. But the two of them met for the first time today. They could only say that they knew each other by name, but in fact they were not familiar with each other at all... But if she continues to sit here, Chang Haonan''s half-smiling eyes make Yao Mengna clearly feel that the temperature on her face is rising... "Forget it, I''m going to see if there''s anything aunt can do to help..." In the end, she was defeated and ran to the kitchen... In the following time, due to being frightened several times in a short period of time, Yao Mengna behaved well and did not dare to do anything out of the ordinary until the New Year''s Eve dinner. Only when I was making dumplings with Chang Haonan at night, I secretly kicked Chang Haonan under the coffee table. Chang Haonan''s family also tacitly agreed not to mention what happened during the day. No matter what, the relationship between the two people was invisibly brought closer during this day. And this New Year''s Eve passed in such a quiet and peaceful atmosphere. However, for the two parties involved, especially Yao Mengna, who was celebrating the New Year at someone else''s house for the first time, this night was destined to be tossing and turning and difficult to sleep... Meanwhile, across the ocean. In 2002, Chinese culture did not have a particularly strong influence abroad. Basically, apart from Chinatown and other Chinese areas, not many people pay attention to this festival. However, even though it was not the Spring Festival, Professor Harold Huang had not been able to sleep well for several days in a row. As for the reason The things that can keep a scholar awake are most likely nothing other than papers. However, this time it was not because of rejection In the field of numerical computing, even theoretical research has extremely high requirements on computing resources. Harold is currently in a relatively marginalized state, so since he published the paper in JCAS last year, the data for the next article has not yet been collected. In fact, the source of his unhappiness was last year''s paper. The United States at the beginning of the 21st century is similar to China 20 years later, and the paper volume is booming. Although Harold is already a full professor, after all, he has just joined Ohio State University a few years ago. Many things still have to be achieved through performance evaluation rather than mixed qualifications. However, just after he submitted his paper from last year to the school as a result, he was quickly beaten back. Faced with this situation, Harold was naturally confused. Before submitting, he went to check it out. Although it has only been published for less than a year, JCAS has been included in the SCI database, and the impact factor has reached 4.71. Of course, this number accounts to a large extent for the benefit of several of the biomolecular papers. But in any case, in this era where the impact factor has not yet been inflated, it is absolutely dazzling for a new journal to achieve this result. At least it shouldn''t be excluded from effective results. So, he directly took the relevant information and went to investigate. And the answer I got was - The school believes that JCAS was included in SCI and had an impact factor in early February 2002, so papers published there before that cannot be counted as effective results... Harold almost laughed in anger. He has spent half his life in academia, and although he has spent most of his time in companies, he has never heard of such an outrageous calculation method. Obviously, it can only be explained as being targeted... (End of chapter) Chapter 979 A timely invitation Chapter 979: A timely invitation Although he figured out the ins and outs of the matter, it had no direct effect on improving Harold''s current situation. Unless he changes his research direction. However, on the one hand, Harold was never willing to compromise due to academic strife. On the other hand, he has spent too many sunk costs on the research of compact high-precision formats in the past few years, and has already made some plans. If he changes his research direction at this time, it will indeed be a loss. But if it continues like this, that''s not an option. Originally, Harold had already contacted a material manufacturing company and planned to make several display boards so that he could attend an industry report meeting in the energy and power field. As a result, I was stuck on the most basic qualifications to participate. Of course, you can also spend some money to buy tickets for this kind of conference. But if you take this route to attend the meeting, you won''t even be able to enter the infield. You can only try your luck in the outermost hall. He himself can choose to be a salty fish and it doesn''t matter, but several students in the research group still need the opportunity to show their faces. This is also what Harold is most worried about now. If the first batch of students he brings cannot succeed, then his future reputation in the education world may not be guaranteed. "Dong dong dong" "Dong dong dong" Matthew Sane knocked on the door several times in succession, but did not see Harold behind the computer raise his head, so he had to walk into the office on his own: "Professor...Professor?" After being called twice in a row, Harold finally recovered from his loss and anger. "Oh...Matthew..." He gently rubbed the corners of his eyes that were a little sore due to lack of sleep in recent days: "anything?" Although Matthew is Harold''s founding disciple, he is only a graduate student after all and does not know what has happened recently. I just think it''s because my mentor has been busy with scientific research recently and hasn''t had a good rest. "Professor, as per your request, I have summarized the main conclusions and core derivation process of our previous paper. Now even if I put them all on the same display board, it will not look too crowded..." He said as he placed the laptop tucked under his arm in front of Harold and opened the lid. A vertical strip design is displayed on the screen. Although there is a lot of content, it does not seem cluttered. I even included a few pictures here and there. It obviously took a lot of effort. Seeing this scene, Harold''s first reaction was even stunned. Immediately afterwards, a wave of guilt swept through his heart. "well" Harold sighed and wanted to tell the truth about the current situation, but for a moment he didn''t know how to speak. Should we just say, "Our meeting schedule may have to be cancelled, and all your preparations during this period will be in vain"? That''s a little too literal. But if you dont say it, this is not something that can be kept hidden forever... In fact, Harold''s research was able to be established as a project and received a start-up fund, which shows that at least someone is paying attention to this direction. But the problem is that now he doesn''t have a platform to publicize his results - After all, JCAS is just a very young journal from China. And its still a hodgepodge. Anyone with a discerning eye can see that it is purely for academia. This type of journal is rarely read by the business world. Industry-related conferences are different. The energy and power conference he wanted to attend was not only organized by universities, but also by well-known companies such as General Electric, Westinghouse, and Honeywell. If you show your results on it, you will have a high chance of getting registered with these companies. This is a great opportunity for him and the entire research team. But the greater the hope, the greater the disappointment. Harold even considered whether to spend his own money to buy an admission opportunity and take the students to see the world. Moreover, the outfield is also a serious meeting venue after all. Maybe some financial owner has taken a fancy to it... Matthew, who was standing opposite, saw Harold staring straight at the computer without speaking, and he couldn''t help but feel a little worried: "Professor, this version of the plan...do you think there is anything that needs to be modified?" The latter was so confused that he actually couldn''t calm down and read the content carefully. In addition, his energy was a little lost, so he nodded almost mechanically: "This is enough." "The format of the exhibition board is to take into account that a large number of viewers are just passing by, so it must be possible to use simple elements such as pictures or keywords to attract attention." "As long as you can make people stop here, that''s half the battle..." Obviously, whether intentionally or not, Harold has begun to try to lower Matthew''s psychological expectations. So as not to make the gap too big when the time comes. And the effect of these words was immediate. Matthew''s eyes that had just brightened up suddenly dimmed a lot: "That...doesn''t it mean that the effect will be very poor?" Harold hesitated for a moment, then gave a noncommittal answer: "For a meeting like this, the most effective one is to go directly to the stage to give a report... But the number of places for this kind of opportunity is limited, and you basically have to be invited..." In fact, as early as the beginning of last year, the American Institute of Aeronautics and Astronautics asked him through private channels whether he would be interested in giving a report at the annual meeting in December. But at the last minute before formal invitations were sent out, the theme of the entire annual meeting changed. And the report naturally came to nothing... Harold realized that he seemed to be thinking about the distance again. He told himself in his heart that recalling the past was of no use in planning now. So he adjusted his mood and continued: "However, as long as your research results are valid enough, even if you set up an exhibition board in a crowded outdoor field, there is always a chance of being noticed..." As Harold spoke, he moved his office chair back behind his monitor and habitually opened the browser to read today''s email. When Matthew saw this, he also put on the computer, regained his energy, turned around and prepared to leave the office. but. Right now. Harold, who had just opened his mailbox, suddenly found an email from the Torch Group''s official mailbox at the top of his inbox list. As a researcher in the field of numerical computing, it is impossible for him not to have heard of this Chinese company. In terms of comprehensive performance, the calculation tool TORCH Multiphysics developed by it is still far ahead. Only a few competing products such as COMSOL can challenge some subdivisions such as CFD. In fact, Harold was already a loyal user of TORCH Multiphysics before joining Ohio State University. Therefore, he clicked on the email almost without thinking. "Maybe it''s a recommended advertisement for the new version?" While the page was loading, Harold thought like this - He knew that just next month, Torch Group would release a new version 2.0 of the TORCH Multiphysics software. The other party is even planning to use this as an excuse to hold a conference on numerical algorithms and computing science. You should know that before this, although numerical calculation had been put into practical applications in many engineering fields, it was rarely regarded as an independent discipline in itself. Therefore, a conference with such a theme, especially if the main organizer is an industry leader like Torch Group, naturally attracts a lot of attention. However, there will be some overlap between the meeting time and the energy and power report, and China is too far away from Ohio, so Harold is just going to pay attention to the other party''s communiqu and related conference papers afterwards. However, the email loaded much faster than Harold expected. In less than half a second, the content was displayed on the screen. It''s not an advertisement. Rather, it is a brief invitation letter. Ask him if he is interested in going to China as a special guest on March 30th and 31st to participate in the Numerical Algorithm and Computational Science Conference hosted by Torch Group. If you are interested, you need to prepare an academic report of about 25-30 minutes in advance... Harold''s bloodshot eyes flashed with confusion. At one moment, he even wondered if he hadn''t had a good rest for so long that he was hallucinating. But the English letters on the computer screen are extremely clear, not like an illusory scene in a dream... "Special Guest" "academic report" 25-30 minutes A few keywords made Harold feel dizzy. "Matthew!" He supported the table, closed his eyes and took several deep breaths in succession, while shouting to the door at the top of his lungs. At this time, Matthew had just left the office a few steps when he heard his name again and roared so loudly that he almost scared the laptop away. He quickly took three steps at a time and returned to Harold''s office: "professor?" "It''s an exhibition board...is there any problem?" The latter waved his hand, and then motioned Matthew to sit on another chair next to him: "Forget the Fxxking display board." Harold opened his eyes again, and the pain and confusion in his eyes had completely disappeared. All that remains is a firm gaze: "Our chance has come." "Um?" Matthew still didn''t understand the situation. "Together, we will expand the content on the exhibition board into an academic report." "The content must be substantial enough..." (End of chapter) Chapter 980 Be a company with dreams Chapter 980: Be a company with dreams Looking at Professor Harold who seemed to be suddenly excited, Matthew was a little confused about the situation for a while. In fact, the latter can vaguely feel that something is wrong with his boss''s mentality in the past few days. It''s just that as a student, it''s not easy to directly ask what happened. Including a few minutes ago, when he first entered the office, the other party still looked distracted. As a result, less than 30 seconds after he turned around and left the office, Harold completely cleared away the gloom on his face. "But professor..." Matthew said with a troubled expression: "This exhibition board... was something you asked me to compile from an academic report before?" Harold raised his head and quickly recalled. I found that this seems to be the case. After the report meeting failed at the end of last year, he approached Matthew and asked him to condense the report he had written into a display board in preparation for participating in the subsequent energy and power industry conference. I just didnt expect that due to the obstruction at the school level, even the latter matter was blown away... The teacher and student stared at each other for half a second, and the situation was a bit awkward for a while. "Ahem" Harold coughed twice to cover up his embarrassment, and then put on a posture of "Everything is under my calculation": "After all, that report was written half a year ago, and the content is a bit out of date." "Before, I considered that the space for making an exhibition board was limited, so it was not easy to add anything to it. But this time, the report time is 25-30 minutes, so we can definitely include some of the new discoveries we have made recently." At this time, Matthew also understood a little bit: "So... there is a higher-level academic conference that invited our research group?" He also became energetic instantly After all, just now, Harold specifically emphasized that reporting on stage has the best effect. Facing this question, Harold was stunned for a moment. At this time, he did not realize the source of this "special invitation" and its corresponding value. Therefore, I am somewhat worried that I will not be able to take my students with me. So, he turned his head and glanced at the computer screen. Because it was not a formal invitation letter, it was just asking for his wishes, so it did not include any details. Fortunately, the official website address of the Numerical Algorithms and Computational Science Conference is attached. Harold quickly clicked in. "Well...it doesn''t clearly say whether I can take other people with me..." While stroking his slightly bald head, he looked at the meeting rules listed on the web page: "I''ll ask the organizer when I reply. If possible..." Harold had originally wanted to take you with him if he could. But mid-sentence, he suddenly saw another part of the content below Numerical calculation competition. Obviously, this meeting is actually more than just a meeting. There''s even foreplay. At this time, Harold vaguely remembered that he had seen news related to it a few months ago. But there were only three people with master''s degrees and doctoral degrees under him, and one of them was a first-year graduate student. In addition, the competition time conflicted with the conference he was planning to attend, so he didn''t take it seriously. But looking back now, I almost picked up the sesame seeds and lost the watermelon. "Matthew." Harold waved to the side, motioning for the other party to come closer: "I think... you can sign up for this competition." Matthew moved closer to the monitor and took a closer look: "But it says a group requires three people?" "Did all our research team go there..." Regarding this point, Harold actually had an idea for a long time: "It just says that the contestants must represent the same school. You can bring Garcia and find another friend." Lucas Garcia, Matthew''s junior student, is currently struggling with whether he should continue to study for a PhD or work directly after graduating with a master''s degree. From Harold''s point of view, he naturally hopes that the other party can stay and continue his studies. But as a mentor, he has to let the other person see some of his remaining thoughts. Now, all Harold''s limited resources are being piled on Matthew, so that the latter can barely finish the project without delay. And new projects are nowhere in sight. In this case, people in the future would not dare to study for a Ph.D., at least they would not dare to study for a Ph.D. here. It is precisely because of this that Harold desperately hopes to fight a turnaround. "But it says that each institution can only have one representative team to participate in the finals...which means we need to compete with other opponents in the school first..." The many setbacks in the past two years since starting his Ph.D. program have made Matthew habitually unconfident. However, Harold sees this very clearly: "Don''t worry, Matthew." He put on a confident look: The website says that the broad scope of this years competition is computational fluid dynamics. "In this regard, I dare not speak about the situation of other schools, but in our school, there will be no one better than our research group..." This is definitely not Harold''s nonsense. Unlike most professors who came from the lecturer line, he spent the first twenty years of his career in a semi-commercial research institute. It can even be said that if it were not for the exclusion due to differences in research directions, he would not have chosen to enter the university at all. This background led to Harold''s lack of strong connections in the academic circle, and it became one of the main shackles that restricted his further development over the years. But it also allowed him to accumulate a lot of specific project experience. As Harold''s first disciple, Matthew naturally benefited a lot from it. It''s just that due to the lack of a control group and the fact that the research group has had too few projects in recent years, the latter himself doesn''t know about it. However, if you dont know, you dont know. But looking at his mentor''s determined expression, Matthew nodded after hesitating for a few seconds. "Then you first contact people and form a team." Harold patted his thigh excitedly: "I have compiled some typical CFD projects that I have done in the past, especially the CFD projects that were done with TORC Multiphysics after 1998. You can do more research during this time..." "Although it says that participating teams do not have instructors, it does not say that reference materials cannot be provided..." Naturally, Professor Harold was not the only one who noticed this numerical calculation competition. In fact, many people move much faster than him. In fact, if Harold hadn''t been so troubled by his school and colleagues who were not good at it, he wouldn''t have ignored the relevant news - Torch Group started promoting the Numerical Algorithms and Computational Science Conference as early as the end of 2001. As an "appetizer", although this competition cannot be said to be the top priority, it still occupies a quite important share. The first, second, and third place prizes plus various individual winning prizes total US$500,000, and the opportunity to get up close and personal with big names in the field of numerical computing. Even industry giants such as Dassault, Airbus, Pratt & Whitney, Siemens, and General Electric will send high-level representatives to attend the conference. If any contestant performs well in the competition, or is lucky enough to be directly chosen by a large company, it is basically equivalent to saving 10 years of detours. For the professors and researchers who participated in the conference, these companies are also first-rate super funders. As for the travel expenses, food and accommodation expenses that need to be borne by yourself, they are nothing to mention in comparison. What some participants were worried about was the venue itself. After all, in many propagandas, China is a chaotic, backward place comparable to black Africa. Of course, most people are relatively rational. Although they have no way of knowing the true situation in China, they are inevitably affected by some tendentious propaganda. But logically speaking, in a place where a high-tech enterprise like Torch Group can be born, poverty is put aside, at least it is unlikely to cause chaos. Therefore, all of a sudden, air tickets to China at the end of March suddenly became very popular... And at the same time. In addition to schools and research institutions, there is another group of people who are also watching this conference closely. San Francisco, Stanford University. In the private reception room of Professor Anthony Jameson. "These days, I have carefully studied the competition sponsored by Torch Group." Jameson was holding a cup of strong coffee and leaning against a window sill: "In the competition requirements, there is no mention of restrictions on computing tools and methods. Perhaps... we can consider using this opportunity to expand the influence of COMSOL to the business world." Sitting on the sofa not far across from him was Klaus Hertz. Head of COMSOL US Division. It is said to be the American branch, but it is actually responsible for liaising with Professor Jameson''s research team. "You mean, find a few teams that have a higher chance of winning prizes, sponsor them... or use other methods, and let them use our calculation tools to compete?" Heltz was naturally not stupid to be able to sit in this position, and he understood what Jameson meant almost instantly. "That''s right." Jameson nodded: Although my personal relationships have allowed some companies to include COMSOL in their software supplier lists over the years, as far as I know, even after the latest software version 2.5 is released, the actual usage rate of our software is not very optimistic. Many commercial users have the mentality of hedging their bets and buy the right to use all decent software on the market. However, in actual operation, they still rely on Torch Groups software, even in the CFD field where we actually have an advantage. Same thing..." "From the perspective of users, they will definitely be inclined to seek stability and will not randomly use projects to try and make mistakes. Therefore, it is meaningless for us to just stop at word-of-mouth promotion. We need an opportunity to prove to them that there are better products on the market than TORCH Multiphysics. Better choice! In fact, this is a fairly common phenomenon in the software field - Faced with opponents that have already occupied the mainstream market share, it is difficult for latecomers to overcome the long-term usage habits, regardless of performance. Even if a part of the market is occupied by off-site means, users often do one thing on the surface and another behind the scenes. For example, China has encountered the same problem in the process of promoting domestic operating systems. At the beginning, I installed dual systems on the computer. Later, when it was no longer allowed, I simply used my own computer to work. Later, I disabled the external interface of the office hardware and managed to barely control it. It''s just that things have changed, and now it''s the Europeans'' turn to have a headache. After hearing this, Heltz nodded in agreement, but the expression on his face was still a little hesitant: "But that is someone else''s home field after all..." Jameson shrugged helplessly: "There is no way, given the current situation of the entire industry, except for Torch Group, it is difficult for others...including us to have enough appeal." "However, you don''t have to worry too much." At this point, he paused for a moment and drank all the coffee in the cup: "I am a special guest at this conference and have the right to supervise the entire competition process." "Although playing at home will definitely give you a certain advantage, after all, we are in front of our colleagues from all over the world, so they don''t dare to overdo it..." (End of chapter) Chapter 981 This is the technology we started with Chapter 981 This is the technology we started with Now that Professor Jameson has said this, Hertz no longer dwells on the issue of fairness and starts thinking about specific plans: "I have seen the process of that competition before. Each school can only send one team to participate in the finals, so we must first consider how to pass the preliminary rounds..." The former looked very relaxed and waved his hand to indicate that it was no problem: "Although our software is not widely used in the business world, it has been promoted rapidly in schools and scientific research institutions in recent years. It is not difficult to find people who can use it skillfully." "CFD is already our area of ??strength. As long as we conduct some targeted training before the competition, it should be easy to pass." As he spoke, he slowly returned to the conference table: "Also, having preliminary restrictions is actually a good thing for us." "The preliminary competition is held online and there is no strict time limit, which means that participating teams have the opportunity to compare a variety of different calculation tools, and it is easy to discover the advantages of our COMSOL in CFD problems." "I have also specifically confirmed that the 2.0 version of TORC Multiphysics will be officially released on the evening of the first day of the conference. Therefore, during the entire competition stage, only the existing version should be used, and it is impossible to surpass us in efficiency." This explanation is clear and logical, and it is indeed very convincing. And, judging from the feedback received so far and the testing situation, At least Hertz was completely convinced: "In this case... our company can promise to bear all the entry fees for all contestants who use COMSOL software and participate in the finals. If they win, we will provide an additional reward of the same amount in addition to the bonus provided by the competition." As the person in charge of the North American region, Hertz has quite a lot of resources at his disposal. Sponsoring more than a dozen teams is not a problem for them at all. As for the bonus behind... If COMSOL can win a prize in a competition sponsored by a competitor, then the publicity value of this event itself cannot be calculated in terms of money... "I will contact a few old friends who work in the university and ask them to take the lead in forming a participating team." Jameson''s fingers were tapping gently on the table, obviously in a good mood: "In addition, considering that most graduate students may have less project experience, I also have some actual cases of using the finite volume method to solve CFD problems in the past, which can help them adapt in advance..." In short, with various intentional and unintentional pushes, the influence of this Numerical Algorithms and Computational Science Conference has become increasingly high. So much so that after the New Year holiday, on the first day he returned to work, Song Jingming, who was in charge of the matter, hurriedly reported the situation to Chang Haonan. "The expected number of participants has increased by 50% compared to the statistics before last year?" Chang Haonan looked at the statistical report in his hand and was a little confused about the situation for a while: "Old Song, our conference... still needs to have certain participation thresholds. The review cannot be too relaxed..." Although his original purpose was to further enhance Torch Group''s leadership position in the field of numerical computing, it is definitely not that the more participants, the better. On the premise of ensuring scale, it must also maintain sufficient strength. At least it can''t make the big guys attending the meeting feel like they''ve lost face. "Mr. Chang, the review threshold has never changed." Song Jingming quickly explained: "Except for a few special guests, participants must have valid scientific research results related to their field, or a letter of recommendation issued by the company." The reason why so many people suddenly came out was mainly because the topic of the competition was determined to be computational fluid dynamics, which led to many companies and research institutions in the chemical industry becoming interested. They called us or wrote us to ask if they still wanted to participate. There is a need for nominal sponsorship. "Although the list of sponsors cannot be updated, we can''t stop others from sending corporate representatives... After the news spread, many scholars and students in related majors submitted applications to participate in the conference or participate in the competition..." Chang Haonan suddenly understood. This is a circle expansion. "The problem now is that although we don''t have to pay for the food and accommodation of these participants, we still have to find a place to house them. The rooms in the several hotels we contacted before are already quite tight..." Halfway through Song Jingming''s words, there was even a little sweat on his forehead Not bearing the cost of food and lodging means not reimbursing money, not really not caring at all. In terms of food, it''s not bad. In such a big capital, no one will go hungry. But Sui is different. In China, you cant just find a hotel to receive foreigners. You must have foreign-related qualifications. In 20 years, this thing can basically be obtained by applying, but it is still relatively rare now. Even in the capital. Especially when there are so many people. And if you, as the conference organizer, let the participants sleep on the street, it would be huge news no matter where you put it. "Let''s do this. I''ll first contact the hotels affiliated with several fraternal units within the Science and Technology Commission system. If that''s not enough, I''ll consider looking for support from the capital." Faced with this situation, Chang Haonan''s first thought was naturally internal digestion. Firstly, communication and coordination are convenient, and secondly, the wealth does not flow to outsiders. After all, at the beginning of the 21st century, the average spending power of foreigners was still significantly higher than that of the general domestic population. After hearing Chang Haonan''s answer, Song Jingming finally breathed a sigh of relief: "Okay, with your support, we feel confident." "By the way, there''s one more thing." Before the latter left, Chang Haonan suddenly stopped him: "After you go back, ask Professor Liu to find two people from their business department who are familiar with the operation of COMSOL Multiphysics to report to me as soon as possible." Facing this request, Song Jingming''s eyes flashed with confusion. Fortunately, Chang Haonan quickly gave a further explanation: "I was worried that all foreign teams would use our software to compete, so there would be no way to compare, so I found two other schools and asked them to use COMSOL''s calculation tools in the finals." "The problem is that our domestic numerical calculation-related courses basically use the textbook I compiled back then... I asked almost no one who has had in-depth contact with COMSOLM Multiphysics... Although the operating logic of this type of software is quite different, it is best to Give it special training, otherwise if you use it too unfamiliarly, it will be easy to reveal your secrets..." Due to the Spring Festival holiday in the middle, February seems to be divided into two halves. In short, I havent had any concrete feelings yet, and its already the end of the month. For most Chinese people, it is generally not until after the Lantern Festival that they can gradually return to normal working conditions. But some people don''t have such a long rest. Such as Liu Hongbo. Just two days after the Spring Festival holiday, he took the wing design optimized by his team and flew to France with two assistants - After all, Falcon Z is a project that Dassault took the lead and was responsible for the overall design. The Aerodynamics Group only assumed part of the tasks. However, the proportion of this part seems to be a bit too high... Due to the time difference, Liu Hongbo and the others boarded the plane early in the morning, and when they got off the plane, it was noon local time. After much thought, he decided to hand over the work as soon as possible. "Manager, why don''t we go back to the hotel to clean up first?" After sitting in the car arranged by Dassault, an assistant looked at Liu Hongbo''s messy hair and haggard face and asked worriedly. "Long nights and many dreams." Liu Hongbo shook his head, and then patted the locked metal password box next to him: "You may not know this when you go abroad for the first time, but thieves are particularly rampant in Paris. One more day your things stay in our hands means one more day of trouble..." A simple sentence gave the other two people in the car a completely new concept of this place... Fortunately, the journey to Dassault Group was relatively calm. After a simple reception meal, the three met Dr. Charles Edelsteiner, who was in charge of the Falcon Z project. By convention, data is stored on hard drives, not paper copies. Therefore, the handover process was placed directly in the computer room of the design department. "To be honest, I didn''t expect that, apart from the maturely designed fuselage, the earliest plan for the entire aircraft was this ultra-high-speed wing..." While waiting for the data to be imported, Ed Stanner said to Liu Hongbo with some emotion. Originally, his lowest expectation was to get the wing plan before the end of the third quarter, which would barely make it in time for the Falcon Z''s first flight in 2003. Who would have thought it would be half a year ahead of schedule? This wave has almost directly dispelled all concerns about project delays - Even in the worst case scenario, if the SeA650 engine fails to be installed as planned, other models can be temporarily used for the first flight without affecting the progress of the entire project. Liu Hongbo on the side laughed out loud when he heard this. Of course I''m not making fun of it. Instead, he remembered what happened many years ago when he first met Chang Haonan. After the latter entered Academician Du Yishan''s research group and was successfully promoted from a student to his junior disciple, the first project he handled was to calculate the flutter critical speed of the MA60 wing. "Doctor, you may not know much about the history of our group." Liu Hongbo shook his head and temporarily put the memories behind him: "In fact, the first time we entered the field of civil airliner design was by relying on first-hand airfoil optimization technology." "This is a housekeeping skill..." (End of chapter) Chapter 982 So it turns out that Mr. Chang is so hap Chapter 982: So Mr. Chang is so happy every day? In addition to Liu Hongbo and Ed Steiner, other people in the computer room naturally took advantage of this time to communicate quietly. In French, of course. "I remember that the wing design was entrusted to the Chinese people at the end of October last year, and it has only been about four months in total..." A relatively young technician looked at the slowly moving progress bar on the computer screen and said to several colleagues around him: "At that time, the starting point for the optimization of our critical speed was around Mach number 0.8. In such a short period of time... could it really be optimized to the 0.95 level required by the design?" Several people were standing in a relatively remote place, and they could see that the Chinese man didn''t seem to understand French, so they didn''t worry about their words being overheard. "If we just talk about critical speed, I wouldn''t be too surprised..." The next person who spoke was another middle-aged female engineer sitting on the chair: "In fact, there are many mature technical means that can increase the critical speed to a level close to Mach 1.0, but that is only the most superficial problem in wing design..." In fact, since the concept of supercritical wings was first proposed in the late 1960s, the lift coefficient of straight wings at medium and high speeds has not been a problem. This technology can greatly delay the point where the drag divergence occurs on the upper and lower surfaces of the wing, and increase the relative thickness of the wing by 30% to 50% at the same drag divergence Mach number, allowing aircraft designers to design designs without changing the total weight. A wing with a larger aspect ratio. That is, thinner. As early as the early 1970s, Airbus had already adopted a supercritical airfoil when designing the A300. By the beginning of the 21st century, in the field of pure aerodynamic lift design, it was indeed no longer a new technology. Therefore, everyone nodded. "but" The female engineer changed the subject: "My main concern is that these Chinese people only have experience in numerical calculations, but lack wind tunnel or test flight data accumulation. On the surface, everything looks normal, but once they actually enter the testing stage, troubles will come one after another..." Obviously, not everyone initially agreed with leaving the wing design task to China. "If you are referring to the wing flutter problem, then I don''t think it will..." A bald old man who had just been staring at the computer screen also turned around at this time: "About... uh... it should be about six years ago. At that time, the Chinese people designed a regional passenger aircraft with Finmeccanica Group. Of course, it was a joint design, but there was basically no Italian participation in the hardware part." "In my impression, the airfoil design of that aircraft is quite good and it is very competitive among aircraft of the same level." "You have always worked at the headquarters, so you may not have any impression, but I have flown it once before when I went to Egypt on a business trip. For a propeller aircraft, the noise and vibration levels are first-rate..." It is not difficult to tell from what he said that he has a high opinion of the MA60. "I do know that model, it seems to be called MA60?" The female engineer just replied: "I heard that it has indeed had a big impact on the market of ATR72 and Dash8. However, even at the maximum speed of a turboprop airliner, it is impossible to exceed Mach 0.5. The flutter problem in that speed range is completely different from that in the transonic speed range..." "this" A well-founded refutation left the other party speechless: "That''s true..." While everyone was chatting separately, the data in the first batch of hard drives had been transferred. While replacing the second batch, the technicians also opened the transferred project documents at Ed Steiner''s request. For a moment, everyone, whether they were doubtful or determined, focused their attention on the computer screen located in the center of the computer room. After a slightly long loading time, the PDF document was loaded. Ed Steiner quickly skipped the previous meaningless content such as project background, and prepared to scroll directly to the key part Liu Hongbo may not understand French, but he can understand it. Although he had been chatting with the former just now, Ed Steiner did not ignore the whispers of the people in the corner. As the project leader who made the final decision to hand over the wing design to Huaxia Design, he was quite confident. Now I feel a little guilty. If, as the female engineer said, there was a major problem with the wing during the test, it would be an absolutely devastating blow to the project progress. And it''s pretty much the same for him. Fortunately, at this time, Liu Hongbo next to him looked at Ed Steiner, whose anxiety was almost written on his face, and extended a helping hand in time: "You can just turn to page 377." "What?" Ed Steiner subconsciously stopped moving his hands. "Page 377 and beyond are the design instructions and design conclusions, and the parts further forward are the design principles and calculation processes, which need to be read in conjunction with the engineering documents... and it cannot be understood in a day or two." Liu Hongbo explained. "oh" Ed Steiner felt that this sentence sounded a bit wrong, but he was in extreme anxiety at this time and had no time to think about it. I just quickly followed the other party''s suggestion and jumped to page 377. Sure enough, what catches the eye directly is the most critical part. A graph showing the calculation results of Mach number and equivalent airspeed. "Oh~" When the content on the monitor was enlarged, a short but neat exclamation suddenly sounded throughout the computer room. At this time, Liu Hongbo also spoke appropriately: "I know that some friends are worried that our lack of design experience will lead to problems with the final design plan." This first sentence immediately stunned everyone. Because Liu Hongbo used French... "etc" Ed Steiner was so shocked that his eyes almost popped out: "You speak French?" As for the engineers who had just gathered together, their faces turned red and white. There is quite a sense of embarrassment in saying bad things about others behind their backs, only to be discovered in person. I learned a little bit when I worked with Eurocopter before. Liu Hongbo smiled and replied: "Of course, I''m not very proficient in speaking, so my subsequent introduction will still be mainly in English..." Really not very skilled. It can even be said to be blunt. But enough is enough. Even those who just watched the fun or had doubts about their attitudes now have corrected their attitudes Obviously, since the other party can point out the problem directly, it means that at least he will not be unprepared. Looking at the room of French people in front of him who were still in shock, Liu Hongbo felt relieved in his heart. At this time, there was only one thought in his mind; "Fuck...so is Mr. Chang always so happy when he talks about design plans on stage?" Of course, just thinking about this, I still have to pretend to be serious on the surface: "In short, please rest assured that Dr. Ed Steiner and all colleagues present here, although our research in the field of jet airliners has just started, we can already calculate the ''transonic speed'' of the aircraft flutter boundary curve in the wind tunnel test. Transonicdip phenomenon As soon as these words came out, everyone in the audience was shocked. As the Mach number increases, the flutter speed of most aircraft will gradually decrease in the subsonic region, reaching a minimum near Mach number 1, and then the flutter speed will gradually or suddenly increase. This is also the main reason why the maneuverability of many aircraft is worst in the transonic range, but gradually recovers when entering the supersonic range above Mach 1.4. In fact, as early as the early 1960s, NASA had discovered this law through a large number of wind tunnel tests, and also provided a standard calculation example using the AGARD445.6 airfoil. However, until now, no one had been able to reproduce this problem during the design calculation process. "But...this..." The female engineer who had just expressed her doubts could hardly speak coherently: "The nonlinear aerodynamic performance of different airfoils in the transonic stage is completely different. If it can be calculated...could it be possible that you have solved the N-S equation theoretically?" "Uh...that''s not the case." Liu Hongbo was also a little speechless at this overly jumpy speculation: "If the smoothness and solvability of the N-S equation were proven, I think you would have seen the relevant news long ago... just like when the Poincar conjecture was proven two years ago." "In fact, we discovered a new turbulence model that combines efficiency and accuracy in the transonic range. You can call it ''Chang''s turbulence''..." "The specific engineering calculation process involves our business secrets, so I am sorry to disclose it, but the turbulence model itself can be found and used in the TORCH Multiphysics software version 2.0 released next month..." (End of chapter) Chapter 983 Mach number 0985 Chapter 983 Mach number 0.985 Although the most critical turbulence model in the entire process was not developed by Liu Hongbo himself. But this did not affect his feeling of pleasure at this time. Feel refreshed. Anyone dissatisfied? Then you can also find a way to find an awesome junior brother! For a moment, a room of French people looked at each other in silence, while Liu Hongbo was still under the effect of the "Mr. Chang Experience Card". The entire computer room became inexplicably quiet. All that''s left is the hum of the air conditioner and fans running. Of course, an experience card is an experience card after all. In fact, what makes Liu Hongbo feel proud is different from what shocks the French. For Europeans, naming a phenomenon or equation after a person''s surname is a common thing. What''s more, this is not a formula or theorem that is universally applicable. Even if it is very effective, it can only make some reputation in the aviation industry... and at most the chemical industry. It''s really not worth the fuss. What really surprised them was the picture itself. To be more precise, that "dimple" part. "This flutter boundary curve...is actually discontinuous?" Ed Steiner put his eyes closer, as if he wanted to get into the screen: "And the shape of the depression is a bit... strange..." I didn''t feel it at first glance, but after zooming in and taking a closer look, I can see that the entire curve is actually divided into three non-connected segments. Moreover, the degree of "denting" was much higher than they had estimated beforehand. Almost reaching 20% ??of the equivalent airspeed. If the situation is as shown in the image, then the predetermined goal, which is to achieve the maximum usable speed of the wing to Mach number 0.95, seems to be theoretically impossible to achieve. This is not good news. Compared with those large passenger aircraft that often weigh several hundred tons, business jets have greater restrictions in terms of structure and volume. They are often forced to adopt more radical airfoil designs to pursue range, so they are more likely to be restricted in terms of speed. For example, the current signature Falcon 900 series of Dassault Aviations civil division has a cruising speed of only about Mach 0.8. Not even as good as the Boeing 747. Ed Steiner hopes to solve this pain point on Falcon Z. In fact, the time of rich people may not be very valuable. But they are often more willing to spend money to save time. So it''s a pretty good gimmick. Even the early publicity that has been launched so far has focused on high speed. Although no specific values ??were mentioned. But if you operate like a tiger and only come up with a product with a cruising speed similar to that of an ordinary passenger plane, it is obviously impossible to meet the needs of potential customers. However, one cannot blame Ed Steiner for not knowing. The study of unsteady aerodynamic forces is itself a very complex multidisciplinary problem. Under normal circumstances, not to mention calculations, even ground simulations cannot fully restore the actual situation. But if a problem like supersonic denting really needs to be tested, it is impossible to really let the pilot reach the flutter boundary. It will be settled once the situation is about the same. Therefore, the results of all current empirical models are conservative. "That''s right." Liu Hongbo also entered working mode again and immediately replied: Although supercritical airfoils can achieve a higher lift-to-drag ratio, the flow conditions in the speed range near the speed of sound are much more complicated than conventional airfoils, and the final manifestation in the flutter characteristics is a more severe flutter velocity sag. " "Doesn''t that mean..." Ed Steiner wanted to say something, but Liu Hongbo stopped him with his hand, indicating that he still had something to say: "In addition, flutter velocity sag is not the only abnormal problem that occurs with supercritical airfoils in the transonic speed range." "We conducted wind tunnel tests on several wings with typical characteristics and found that the flutter phenomenon that occurs in the transonic region, especially near the bottom of the dimple, is more complex, such as at certain Mach numbers and specific angles of attack. , a series of phenomena such as beat response, limit cycle oscillation, stall flutter, single degree of freedom flutter, and burst response appeared successively or simultaneously..." This sentence made some people feel a little embarrassed - The Chinese are obviously not only good at numerical calculations, but they are also not lagging behind in terms of wind tunnel testing...it can even be said to be ahead of others. Fortunately, Liu Hongbo had already forgotten the little incident and quickly continued: "Our model can relatively accurately restore the test results of limit cycle oscillation, which is the discontinuous section of the curve you just mentioned, but it is also powerless for other phenomena with less regularity." "And doctor, you should also know that even wind tunnel testing can only simulate the real response of this speed range qualitatively, not quantitatively..." Listening to Liu Hongbo''s explanation, Ed Steiner felt a little numb. He even started to feel a little lucky that he had made the decision and got rid of the whole task of wing design. In fact, France was the first country in the world to use a two-degree-of-freedom rudder model for ground flutter simulation. Or strictly speaking, Dassault. But because of this, it was easier for Ed Steiner to imagine what kind of **** the other party was describing. Considering that time today is precious, he decided to temporarily abandon the middle part and go straight to the topic: "So...since the design requirement of Mach number 0.95 cannot be met, what are the specific results of your design?" Ed Steiner, of course, has never read the Analects of Confucius, but he also knows that what is above and what is behind it is the truth. Therefore, although the target proposed on the surface is 0.95, there is actually a slightly lower psychological expectation. It''s just that I''ve never mentioned it to anyone else before. If the Chinese people can achieve this minimum threshold, then in order not to delay the project schedule, he is willing to accept this design plan. However, Liu Hongbo''s reaction was completely beyond Ed Steiner''s expectations: "etc" The former frowned: "I just introduced some problems encountered during the design process...but I didn''t say that I couldn''t meet the design requirements?" "Ah?" Ed Steiner had even done some psychological preparation, but he heard this answer. The great sorrow and great joy in just half an afternoon made the old man''s heart feel a little overwhelmed. He subconsciously knocked on his somewhat stuffy chest and pointed at the screen in front of him: "But this picture..." "This picture is the result of our simulation using the original airfoil provided by you. It is used to verify the accuracy of the calculation method. It is not a design result..." Liu Hongbo held his forehead and shook his head helplessly. Suddenly, he felt as helpless as when he returned to the classroom to teach students: "If you continue to scroll down, you will see several design solutions optimized in different directions..." It was only then that everyone remembered that this was just the first picture they saw. It just took a long time because the amount of information inside was too large... As the document scrolls down, design plans of different shapes and corresponding calculation results are presented to everyone one after another. "At the beginning, our idea was to try to use limit cycle oscillation, that is, to control the oscillation within a linear range, so that it can be offset by the active suppression system. In theory, the critical speed of flutter can be infinitely close to Mach 1 , about...0.998." A group of people sat in front of the screen, while Liu Hongbo stood behind them and introduced the design process in a leisurely manner: However, we later realized that the above requirements can only be met when the curve of the limit cycle oscillation amplitude changing with the airflow velocity is perpendicular to the velocity axis. On this basis, as long as there is a slight deviation, it will enter the subcritical point. bifurcation, thereby inducing explosive limit cycle oscillations, which is too risky for aircraft..." "So, we finally decided not to solve the problem of transonic dents for the time being, but to squeeze the location of the dents backward so that the aircraft can be relatively safely on the supercritical bifurcation curve, so that harmonic balance can be used The flow control equation can be solved by this method, and then combined with the structural motion equation, the nonlinear flutter can be solved. "Considering that flutter velocity sag is caused by the impact of air compressibility, it is only necessary to optimize the compression effect of the airfoil on the forward flow..." After excluding some core secrets that cannot be disclosed, Liu Hongbo spent about 40 minutes briefly introducing the entire optimization process. At this time, the design file was also flipped to the bottom position. "Despite our great efforts, the results still cannot reach the data of linear limit cycle oscillation. After all, this is determined by theoretical limitations and cannot be broken through with simple engineering means..." Liu Hongbo said in a very regretful tone. The other people, who had been listening in trance, naturally felt their hearts sinking following his tone. However, before sinking to the bottom, Ed Steiner turned to the final design results section. At the same time, Liu Hongbo also changed the topic: "Unfortunately, the ultimate speed of our final optimized design only reached Mach number 0.985..." A dozen pairs of eyes that were originally staring at the computer screen turned to look at Liu Hongbo almost at the same time. "???" Do you hear what you are saying is human? Only reached 0.985? Although due to power limitations, economy and safety considerations, the aircraft cannot really fly at the limit speed that the wings can withstand. But a supercritical wing with such a high ultimate speed basically means that a maximum cruise speed of Mach 0.9-0.95 can be achieved... Compared with the previous generation of business jets, this is already an improvement of almost 15%. Ed Steiner took a deep breath and decided not to care about the Chinese man''s seemingly weird tone: "That''s enough...0.985...that''s enough..." (End of chapter) Chapter 984 In the preliminary round, we have a huge Chapter 984: In the preliminary round, we have a huge advantage According to the plan, Liu Hongbo needs to stay in France for about a week After all, Dassault is a mature company. Even if Ed Steiner agrees with China''s design in his heart, he can''t just make a decision to adopt it. Before final signing, the necessary tests still need to be done. As a representative of China, Liu Hongbo does not need to follow the entire process, but he must at least be responsible for providing technical support and running through the basic testing process. The Falcon Z project has a very tight schedule. Fortunately, as a relatively simple commercial project, there is nothing too much that is worth the internal friction of the four partners. During this period, Chang Haonan, who finally returned to his normal work rhythm, also became busy again. On the one hand, the Haiyang-1 satellite is approaching its launch window. Although most of the software and hardware adaptation work has been done by Lin Senming, the control and final inspection of important nodes still requires Chang Haonan''s intervention. On the other hand, it is also relatively more energy-consuming, but it is preparing for the preliminary round of the numerical calculation competition. When the organizers of the competition issued the suggestion of "asking special guests to write a question each to enrich the question bank", they received unusually enthusiastic feedback. Most of those who can be included in the special invitation list have relatively high status in the industry. As a discipline closer to engineering, in most cases, status is linked to experience. Therefore, this suggestion directly awakened the memories of many big shots. Everyone refined and abstracted the classic or interesting problems they encountered from more than ten years ago to recently and threw them up. There is quite an attitude of wanting to deprive the contestants of their smiles forever. Even Song Jingming received a lot of emails, saying that he was inspired to write questions. One question could not cover the rich experience he had accumulated over decades. He strongly recommended that everyone increase the number of questions they could submit... All in all, it''s very frustrating. Finally, in order to prevent many contestants from being overwhelmed in the preliminary stage, Chang Haonan had no choice but to set limits on the difficulty and calculation time of the questions. This made one of the professors working at CERN (European Center for Nuclear Research) put away the bold idea of ??throwing the "Plasma Fluid CFD" nuclear fusion theory research project into the question bank... As a compromise, each special guest is allowed to provide up to two questions. . Fortunately, although the process was a bit tortuous, the final result was not bad. Before the preliminary round at the end of February, the organizers of the conference selected three questions under the witness of several special guests. According to the competition regulations, all participating teams need to submit engineering documents and design documentation within 120 hours from the release of the topic. The final score will be calculated based on the sum of the two highest scores among the three questions. It can be regarded as a relatively satisfactory rule in this era. Therefore, almost all teams that have signed up and are interested in truly reaching the finals focus on the three questions themselves. The question release time is set at 9 a.m. on February 23, Beijing time. Not very friendly to European contestants. They need to get up in the middle of the night to read the questions and then start answering them immediately. But for Stanford University in Palo Alto, California, it happened to be the night before. In Professor Anthony Jameson''s office. Richard Heltz, and two groups of participating students. In addition to a group from Stanford, the other three are from Santa Clara University not far away. Although this school has an engineering school, it does not specialize in the field of engineering, so Professor Jameson easily found several contestants who wanted to participate through his personal connections - Although the competition regulations do not set up a reference teacher, it does not say that pre-competition training cannot be done. The six people in front of him are two of the "seeded players" he found. Of course, for such a big matter, it is impossible to just set up double insurance and everything will be fine. In fact, COMSOL has signed a total of about 30 participating teams. About two-thirds of them are competitive. However, these teams are scattered across the United States, and there are even two teams from Europe. It is impossible to travel all the way to the San Francisco Bay Area for a preliminary round. Moreover, it is just a matter of giving guidance in the name of pre-match training and doing it secretly. If it makes too much noise, it will not look good on everyone. "There are less than 5 minutes left before the question time..." Haltz glanced down at his watch and was the first to break the silence. In fact, there is an electronic clock hanging on the wall of the office and there is no need to tell time this time. He simply felt that the atmosphere here was a bit depressing, so he just found a random topic. Sure enough, after he started, the students who had been reluctant to speak just now were a little unable to hold back. "Professor, how likely do you think this question is to be beneficial to us?" A girl named Hermia Moreno asked. "I can''t see all the questions in the question bank." Jameson had been like a statue, staying in the same posture on the chair for almost an hour. It was not until he heard this question that he finally moved a little: "In general, the scope of the question is mainly in the field of CFD, but it does not necessarily include only CFD. It can also be appropriately combined with other methods." "If it is a classic type of problem such as continuous fluid turbulence, that is the most obvious advantage for us, but on the other hand, if the problem involves granular fluid, or a very large-scale calculation interval, it is not suitable to use finite volume at all. The situation with the law is relatively unfavorable..." In fact, Jameson didnt know the details in this regard until he participated in setting the question. Therefore, while waiting for the question to be released, he was not completely stress-free. "Professor Jameson." If there is anyone here who values ??the results of the competition the most, it is naturally Heltz, who is the middle manager of COMSOL: "You said before that there is unlikely to be open cheating on the part of the organizer such as leaking the questions, but will they do anything in the process of selecting the questions?" This issue is a little bit sensitive. Even Jameson hesitated for a while. "I can''t say." He shook his head: "Logically speaking, they invited all the question makers to witness the question selection process. Although most people are unlikely to make a special trip for this matter, in the end they will choose who accepts the invitation. The organizer There is no way to control the edges, so if you want to manipulate the process, there are too many uncontrollable factors. "But having said that, if they want to regain their advantage in the CFD field, then manipulating the problem range is indeed a cost-effective way..." Once people communicate with each other, the feeling of torment that lasts for seconds will be much weaker. Therefore, before you know it, the last five minutes have passed... Beep, beep The timer that had been set sounded a beep, which was particularly harsh in the office building at night. Jameson sat up straight at the speed of light, silenced the sound with one hand, and clicked refresh on the webpage with the other hand. Torch Group is very willing to spend money on servers, so the question-writing website will not crash directly after being clicked by tens of thousands of people like the course selection websites of some schools in later generations. After about a minute, a PDF document was downloaded to the computer desktop. Jameson''s hands were shaking a little, and he didn''t even open the file until he double-clicked it for the second time. The mechanism of soil particle migration by groundwater seepage involves the microscopic particle-fluid coupling process, that is, particle-scale soil movement, fluid flow and particle-fluid interaction..." Looking at the title displayed on the first page, several people couldn''t help but feel nervous. What are you afraid of? This particle-fluid problem, and it is also an infinite boundary problem such as groundwater seepage, is almost difficult to solve with a simple finite volume method. It is the "worst case scenario" that Jameson just mentioned. "No way" Haltz''s tone was a little annoyed. Although Jameson said nothing, he frowned. However, he still patiently turned to the second page. "For a subsonic aircraft with a cockpit, there is an object surface streamline diagram as shown in the figure. The figure shows the flow separation area on the leeward side of an inverted cone, and the flow separation point on the leeward side is a saddle point..." The brows of Jameson and several students gradually widened. This problem is so simple that it is almost impossible to fully reflect the advantages of COMSOL Multiphysics. For some experienced people, it can even be solved by building their own wheels. However, for their purposes, it was enough. "This question is just like...an example question from a textbook." Hermia said with a half-smile. "Don''t underestimate the enemy too much." Although Jameson was obviously in a good mood, he still warned: "I''m afraid that the vast majority of teams will choose this question among the three choices. In fact, it is more of a test of basic skills..." As he spoke, he continued to turn the pages and came to the last question. "Assume that the cross-sectional profile of the river bed bottom in a shallow water area conforms to the equations shown in (3-1) below, and water can be regarded as an incompressible fluid... Please establish a mathematical format to simulate two-dimensional shallow water flow..." "etc" Another student next to him immediately widened his eyes: "This question..." "I seem to have... seen something similar during training before?" He turned his head in disbelief and looked at his companions. Then I saw the same answer from the eyes of others... "We have a huge advantage!" If we say that after seeing the second question just now, Jameson''s mentality was just happy. So now, what he feels is... ecstasy. In fact, the submitter of this question was Professor Jameson himself. He and Hertz had conceived many possibilities in advance, but they never thought it would go so smoothly... For a moment, Jameson even felt a little guilty for his initial thoughts - It was obvious that the Chinese did not do anything. These three questions were indeed randomly selected. Otherwise, it would be impossible to be so beneficial to them... (End of chapter) Chapter 985 Boy, do you want to study for a PhD? Chapter 985 Boy, do you want to study for a PhD? Putting aside Professor Jamesons great joy and sorrow for the moment, most ordinary contestants are more concerned about the question itself. Needless to say, the last two questions are purely a test of basic skills. The first question seems very abstract, but it is actually a standard test knowledge point. If the contestant is proficient in the discrete element method, the difficulty will be minimal and can be completed in one day at most. And if you have never been exposed to discrete elements, there is no need to think about it. The infinite element method is even less popular, and the related theory is not yet complete. If any contestant can use this thing to achieve the same effect as discrete elements, they must first improve a series of algorithms by themselves, and then write a calculation program that can be run. If anyone has this ability, there is no need to compete below. You can send an invitation letter on the spot and serve as a special guest. Please sit directly on the podium.jpg As for the traditional troika: finite difference method, finite element method, and finite volume method, you can tell even from their names that they are not suitable for solving such infinite area problems. If the solution is forced, neither calculation efficiency nor accuracy will be ideal. In fact, with the level of most contestants, there is a high probability that they will directly get a divergent result... Therefore, it is better to go directly to the next two questions. Anyway, in the end, the two highest scores are taken, which is allowed by the design of the competition system, and it can even be said to encourage players to make trade-offs. "Teacher, these questions... seem to be the types that COMSOL is better at?" In the computer room of Torch Laboratory, Li Yabo sat in front of the screen, looking at the topic description document in front of him and asked: "This question of yours...is it really chosen at random?" When it was decided to hold a numerical calculation competition at the end of last year, Li Yabo specifically asked Chang Haonan if he needed to participate. Later, on the one hand, it was out of consideration for avoiding suspicion. On the other hand, Li Yabo now has a Nature and a major national defense report in hand, so he really does not need these false names. Anyway, I didnt sign up. But if you don''t participate, you won''t participate. Li Yabo has been paying attention to the competition. Moreover, as a member of Torch Labs, he also has a good understanding of his own products and major competitors. It can even be said that in the Torch Group, apart from Chang Haonan himself, the one who is most proficient in using COMSOL Multiphysics is Li Yabo. Therefore, almost as soon as he saw the question, he made the same judgment as Jameson on the other side of the ocean. Even the emotion is the same Li Yabo also believed that Chang Haonan had to take advantage of the organizer''s advantages to gain a relatively advantageous position. "Ahemof course." Chang Haonan cleared his throat and showed a clear conscience: The most important thing in academic pursuits is to seek truth from facts. "I hold competitions with only three purposes: fairness! Fairness! And fairness!" "You can''t just do everything for yourself just because we are the organizers, right? That''s too outrageous!" "As long as you focus on yourself in the most critical place..." Of course, he said the last words from his heart. Otherwise it will affect Wei Guangzhengs image as a mentor. Despite this, Li Yabo still looked at Chang Haonan with suspicious eyes. It''s obvious that he doesn''t believe it. Its true that academics should be pragmatic, but I think this competition is more like business Li Yabo started by looking at the essence through phenomena. Chang Haonan glanced at the other party with a teachable look: "It''s just a preliminary round, it won''t affect the overall situation." "Besides, since the theme of this competition has been determined to be computational fluid dynamics, no matter how the questions are asked, they will not be able to escape this circle." Li Yabo did not refute this time. But I still feel like something is not quite right. The situation in the preliminary round will indeed not affect the overall situation, because most participating teams will choose the more skilled TORCH Multiphysics to participate even out of caution. However, the questions for the preliminary round, as well as the project documents that will eventually enter the semi-finals, will be displayed on the official website of the competition (public execution). If everyone discovers that one or a few of the top-ranked groups actually use competing products to compete, then at least it will not be a shameful thing for the Torch Group. Considering that there is still nearly a month between the preliminary rounds and the finals, it is not even ruled out that some teams will choose to join the COMSOL camp. Of course, the advantages accumulated by the Torch Group cannot be loosened just because of one game. But based on Li Yabo''s understanding of Chang Haonan over the past two years, he didn''t think the latter would let this happen. "Is it possible that there are other tricks in these questions?" He thought this while returning his attention to the computer screen in front of him. Looking at Li Yabo who was already entangled, Chang Haonan decided to divert the other party''s attention: "That''s right, Yabo." "Remember to sort out your results recently and be careful to delete sensitive content." The former turned back, a trace of doubt flashing in his eyes. "According to the plan at the end of last year, the school will pilot a centralized master''s to doctoral program this summer. Our college has a total of three places." Chang Haonan explained: "After you pass, you will be in the undergraduate program and go directly to the Ph.D. This year you will finish the second year of the master''s degree, and next year you will be in the third year of the Ph.D. Under normal circumstances, you can get the doctorate in the fifth year." "Also, if your results are enough...I can also consider applying for early graduation for you." Hearing the news, Li Yabo''s eyes lit up. He definitely wants to finish his PhD. However, these days, there is no policy for undergraduate students to study directly for doctoral studies. Unless there are special circumstances, you have to get a master''s degree first. Li Yabo was indeed excellent as an undergraduate, but he was obviously still 100 million points behind Chang Haonan back then, so he naturally did not receive special care. The academic length of a PhD starting from a master''s degree is theoretically 3.5 years, but in most cases it is actually 4 years. If the transfer from master''s degree to Ph.D. is successful, it will save two years at least. "Teacher, is this assessment format for transferring from master''s degree to Ph.D. similar to a graduation defense, or does it require an interview?" The two things may seem similar, but the key points to prepare for are completely different. "Um" In fact, Chang Haonan is really not sure. In fact, considering Li Yabo''s situation and Chang Haonan''s identity, it would be enough for him to just go through the motions. But its enough to know this kind of thing in your heart, and its definitely impossible to say it openly: "You should prepare according to the format of your graduation defense." He thought for a moment and replied: "Graduate students... in the final analysis, scientific research speaks for itself." "As long as your research results are sufficient, it doesn''t matter what form it is..." Li Yabo obviously wanted to ask something more, but at this moment, Chang Haonan''s cell phone rang. It''s the administrative assistant of the laboratory, Liu Chenchen. "Teacher Liu?" He pressed the answer button and put it to his ear. "Professor Chang, Engineer Yan Zhongcheng just came to see you and is waiting in the reception room. Look..." This name made Chang Haonan stunned. The chief designer of the turbojet 14 and later the QC130 project. He can also be regarded as Chang Haonan''s old leader. However, since the establishment of the Turbofan 10 project, Yan Zhongchengs main focus has been on aeroderivative gas turbines, so the two have not had working contact for several years. "Just take him to my office. I''m in the computer room. I''ll be there right away." Naturally, it is impossible to talk about important things on the phone. Therefore, after Chang Haonan hung up the phone, he gave Li Yabo a few brief instructions, then turned around and left the computer room and went upstairs. (End of chapter) Chapter 986 Marine gas turbine Chapter 986 Ship Gas Turbine ?Liu Chenchen has the key to Chang Haonan''s office, but he certainly can''t let anyone in casually. Therefore, when the latter returned upstairs, Yan Zhongcheng was waiting in the corridor, holding a cotton hat in his hand and fanning himself with the ear protection part. He looks like an ordinary old man from the Northeast. "Mr. Yan, why didn''t you contact me in advance when you came here? I''d better be prepared." Chang Haonan said as he took out the key and opened the door. In fact, his main feeling about Yan Zhongcheng''s arrival was that of surprise. Especially when the other party went directly to the Torch Laboratory. But no matter what, the two have been in a relationship for so many years, so they are definitely welcome. "I am also in Beijing for a meeting, and I thought I would stop by to see Mr. Chang..." "Meeting?" Chang Haonan stopped opening the tea box: "Isn''t it a little early?" In the late winter and early spring, when the meeting came to Beijing for a meeting, Chang Haonan naturally thought it was a national conference. But that should only start in mid-March. "It''s not that one..." Yan Zhongcheng quickly denied: "It was a symposium held by the Naval Equipment Department, and we went to several institutes including our 606 Institute and the 703 Institute of Shipbuilding Industry." Although the theme of the conference was not directly mentioned, there is basically only one possibility to put Institute 606 and Institute 703 together: "New naval gas turbine?" Chang Haonan frowned: "But...the group level has not received any news about the start of model selection?" The gas turbine models being selected at the moment are definitely for new destroyers, and there is a high probability that they will be the main model in the next twenty years or even longer. In fact, the reason why he planned to build a 30-megawatt turbofan 10 aerospace engine early that year was to target this demand. Now that the production of the turbofan 10 has been completed, the establishment of the QC300 project should indeed be put on the agenda. But in any case, it is impossible for such a big matter to be settled between the Naval Equipment Department and several secondary research institutes. It must involve the General Armament Department and the group level. But he heard nothing about it. "Oh... we haven''t officially started the selection process yet." Yan Zhongcheng explained: "Haizhuang didn''t say it clearly, but I guess... this time we should just check it out in advance so that the higher-up leaders can have an idea." Chang Haonan held two cups, sat on another sofa next to Yan Zhongcheng, and gave the latter one with tea: "Other institutes have nothing to say. They probably don''t have any competitive products on hand." "There are only 703 schools... they should be working on domestically produced UGT25000 now?" Yan Zhongcheng took the tea cup, his expression and movements seemed a bit reluctant - For him, the situation was a bit embarrassing after Chang Haonan took office as the chief planner of the Aerospace Power Group. It''s equivalent to his former subordinates now becoming superiors. Supposedly, this situation is actually not particularly rare. And when he was working on the August 3rd Project, Yan Zhongcheng had guessed that this day would come sooner or later. The problem is, Chang Haonan''s reversal was too early... There was no time to adapt. Of course, this is human nature. Chang Haonan can also understand. But precisely because he could understand, he roughly guessed from just now that the other party came to visit him specially today, and it was definitely not just a drop-in. Now it seems that is indeed the case. "right." Yan Zhongcheng nodded: "There have been rumors that this symposium will affect not only the selection of ship gas turbine models, but also the subsequent development route of the entire domestic destroyer." "052C?" Chang Haonan asked almost subconsciously, but in an instant he realized that the time was not right: "No...the first two ships of 052C are about to be launched..." "That''s the new and improved model from the future..." The model demonstration of 052B/C has been completed as early as 1993, and now, eight units are used on the four ships 168-171, plus two units as backup, a total of ten UGT25000 units have been used. All were shipped to China. In any case, the design of these two models is unlikely to change. Therefore, the influence route mentioned by Yan Zhongcheng can only be the updated 052D. However, due to some influence from Chang Haonan, the current design of 052C in this timeline actually has a lot of shadows of the previous 052D, such as the more versatile common frame vertical hair, and skipping air cooling directly. Water-cooled 346 radar. Of course, there are also hangars and helicopter decks that have become longer to accommodate the Z-12 helicopter. So its hard to guess what 052D will look like in this life. "Although the 052C has not yet been launched, the combat system has been fully verified on the Bi Sheng. The 052B using the same power and hull design is also undergoing trial trials. The Navy is generally very satisfied with the performance of this combination..." Having said this, Yan Zhongcheng took a sip of water before continuing: "So, whether the 052C will be mass-produced directly, or just two ships will be built like the previous models, as a verification of the regional air defense system, and then a newer model with stronger combat effectiveness will be developed. It has not yet been concluded." "The hull of 052B/C, especially the compartment distribution, is designed using UGT25000. If 052C is mass-produced, UGT25000 must be fully localized." "Now the 703 Institute has actually pushed the localization rate to almost 75%. Basically, most wearing parts no longer need to be imported. It is a low-risk, low-cost, short-term and fast option." "However, some people believe that the UGT25000 was not originally designed as a power gas turbine. Although the power is sufficient, it cannot be compared with similar models in terms of fuel consumption, vibration, failure rate, or size, and is not suitable for long-term use as the main model in my country... " "I came today just to ask Mr. Chang your opinion on this matter..." After hearing this, Chang Haonan finally understood. Both the shipbuilding industry system and the aviation industry system currently have gas turbine research and development capabilities, but the logistics needs of the military determine that it is impossible to be equal in selection. It can be regarded as another version of the sea-air gas turbine dispute. In the original timeline, the Turbofan 10 itself did not mature until after 2010, so this competition ended almost before it started - As the only option available, the domestically produced GT25000 from the 703 institute won without any doubt. But now, the fate of Turbofan 10 is completely different. Although compared to GT25000, QC300 has not yet been formally approved as a project, and even specific technical indicators have not yet been released. But seeing that the little brother in the Air Force next door is now full of oil, the Navy, as the second brother, has to consider a more tempting option. That is to be greedy again. Anyway, the military struggle situation has eased to a certain extent in recent years. It seems that it is possible to achieve more advanced gas turbines in one step. In this way, it can also be compatible with larger capital ships that may exist in the future, as well as other gas turbine-powered auxiliary ships. Yan Zhongcheng was undoubtedly here to ask for advice. "Mr. Yan, you should have seen the detailed technical specifications of the turbofan 10 core machine, right?" Chang Haonan did not directly give a countermeasure, but asked a seemingly irrelevant question. "Of course." Yan Zhongcheng replied without hesitation: "After the QC130 was finalized, I was actually considering aeroderivative combustion based on the Turbofan 10, but at that time, whether it was the group or the 606 Research Institute, the resources were concentrated on the Turbofan 10 itself..." "That''s fine, as long as you have a clear understanding of the situation of Turbofan 10." Chang Haonan waved his hand and interrupted the other party: "Compared with the 703 institute, our solution has an absolute advantage in terms of technical indicators." "Even according to the most conservative estimate, the QC300 can fully compete with the LM2500+ just installed by the US military, which is a rated power of 30 megawatts, a fuel consumption of 0.21kg/(kWh), and a simple cycle efficiency of between 38-40 , and a total weight of 5.5 tons or less. Especially the last item, even if the hull design itself does not undergo major changes, a lighter and smaller gas turbine can leave more internal space, and the burden on the turbine department will be lower. "In addition, due to the smaller size of the QC300, even if an intercooling and heat recovery system is added, it will not put too much pressure on the cabin." The so-called intercooling recuperation is to add an intercooler between the low and high pressure compressors and add a recuperator at the exhaust port. The intercooler reduces the temperature of the air entering the high-pressure compressor, thereby reducing the compression power consumption of the high-pressure compressor. The regenerator allows the compressed air to absorb the heat in the exhaust gas, thereby reducing the amount of heat that needs to be added to the combustion chamber. At the same time, the intercooler can also correspondingly reduce the outlet temperature of the high-pressure compressor, thereby increasing the temperature difference between the fluids on both sides of the regenerator and further improving the heat exchange efficiency of the regenerator itself. Thereby significantly improving thermal efficiency. For the QC300, which can achieve a thermal efficiency of 39% in a simple cycle, if it is changed to an intercooling and heat recovery cycle, it is not an exaggeration to increase the efficiency to about 45% under ideal working conditions. Yan Zhongcheng also smiled after hearing this: "If you say that, Mr. Chang, then I''ll feel relieved..." "We don''t even have drawings for our QC300 now. If I talk about it in vain, the Navy will inevitably have concerns... But if I say this is the news revealed by you, Mr. Chang, then the persuasiveness will be different..." Chang Haonan almost couldn''t hold back Compared to asking questions, this wave seems to be closer to seeking endorsements. Fortunately, the results are similar. "Ahem" He cleared his throat: "Don''t be too aggressive when the time comes. After all, the overall design of the ship is still completed by the shipbuilding industry. In any case, cooperation will be inevitable in the future. It is not good if the relationship becomes tense..." "In addition, in the process of developing QC300, we can consider cooperating with the 703 Institute." "First of all, we can''t take all the benefits... Secondly, the ship''s power system does not only include gas turbines after all. The other party is a research institute of the shipbuilding industry and has much more experience in ship-fuel cooperation than we do..." (End of chapter) Chapter 987 Multi-stage adjustable stator blade matc Chapter 987 Multi-level adjustable vane matching technology In Chang Haonan''s view, after the precedent of QC130, it should not be particularly difficult for the navy and shipbuilding industry to accept the QC300, which is also designed by 606 and also uses aeroderivative fuel. Yan Zhongcheng''s trip was most likely just for stability. "Speak of it, Mr. Yan." After talking about the serious matter of gas turbine selection, Chang Haonan couldn''t see off the passengers right away, so he took this opportunity to chat with him about the establishment of an aeroderivative gas turbine project: "My idea for the specific research and development work of QC300 is...if you have no physical problems, you will continue to take the lead." Upon hearing this suggestion, Yan Zhongcheng''s whole body was shaken, and a bright color flashed in his eyes. Due to relatively complex historical factors, his efforts to challenge academicians failed last year. Originally, he actually no longer thought much about this matter. But QC300 is purely a project developed by the Aerospace Power Group. If I could serve as chief designer... It is definitely a big help to break through the academician realm. But in an instant, he had some concerns: "this" Yan Zhongcheng glanced at Chang Haonan: "I asked the organization to take care of me. In the two years since the end of QC130, I haven''t had a lot of burdens. I have been able to recuperate a lot. There must be no physical problems." "It''s just...after all, you know better about the situation of Turbofan 10, and the entire core machine was developed by you..." In other units, leaders pick peaches halfway. As a result, when he got here, he actually picked the leader''s peach. Although it is true that Chang Haonan has more than 100 million peaches in his hand. But it''s still weird. At least guilty. However, before Yan Zhongcheng finished speaking, Chang Haonan waved his hand: "The core machine of Turbofan 10 will be used in a wide range of applications in the future. I have many things to do. It is impossible to handle every project personally. Then I will have no time to do other things." "So... my main focus next should be on the high-bypass ratio turbofan, and then wait until the technology of high-temperature alloys is developed to unleash the potential of the turbofan 10 as a fourth-generation core machine. come out." "Moreover, although aviation power and ship power are both gas turbines in essence, when it comes to engineering, the difference is still quite big. In this regard, only Mr. Yan in our group has the successful experience of QC130, and you will definitely play an important role. of" Yan Zhongcheng didnt really want to do it, but he was just a little bit mentally burdened. In addition, he had not directly participated in the research and development of the turbofan 10, which made him feel unsure. Now that Chang Haonan has said so, it is impossible for him to continue to refuse. So after hesitating for a moment, he nodded. "Don''t have too much psychological pressure." Chang Haonan laughed when he saw this: "I don''t want to be a completely hands-off shopkeeper. I still have to be responsible for the work of grasping the boss..." What this basically means is that he will still serve as chief engineer. Although in most cases, the chief engineer does not interfere with the technical details of the project, this is mainly due to the different division of labor. As the top decision-maker and person in charge of the project, if the chief engineer is willing and capable, he can of course intervene in the design work when needed. If someone like Chang Haonan were to be the chief engineer, he would basically play the role of a stabilizing figure and a technical backbone. "Mr. Chang, please stop scaring me..." Hearing this, Yan Zhongcheng finally breathed a sigh of relief: "To be honest, other parts of the turbofan 10''s aeroderivative combustion are fine. Either I can understand it, or like the combustion chamber, I can just use the test results as known items. Only the design of the high-pressure compressor, I After seeing the design plan, Im still confused Although aeroderivative combustion is developed on the basis of the core aircraft engine, because the working conditions are so different, only the combustion chamber and turbine are often the only ones that change less. Although the high-pressure compressor is also part of the "core engine", it often requires extensive modifications. Especially after the introduction of intercooling heat recovery technology, the thermal management situation will become more complicated. It is far from a problem that can be solved by putting a shell on the aviation engine and changing the calibration. "There''s no need to be anxious about this." Chang Haonan pretended to be relaxed and leaned on the sofa: "The foundation of QC300 is pretty good, so it is not difficult for the model life to last for decades. There is no need to build it overnight and use all the technologies at hand." "The first step is to build a simple cycle gas turbine to solve the most pressing problems of users, and then gradually add other cash technologies to gradually upgrade it." "Also, as far as the compressor part you just mentioned..." Originally, Yan Zhongcheng had gradually relaxed at this moment, but when he heard Chang Haonan suddenly talk about technical issues, his nerves suddenly became tense again: "Mr. Chang, wait a moment..." He stretched out his hand to signal the latter to wait, and at the same time quickly took out the notebook and pen he carried with him from his bag: "You continue." Looking at the opponent''s silky little combo, Chang Haonan showed a dumbfounded expression: "Actually, I''m just providing an idea, not any specific technical guidance..." Having said that, Yan Zhongcheng''s things have already been placed on the coffee table, and it is impossible for anyone to put them away. So, he just explained casually, and then returned to the topic: "You seem confused, just because you don''t know where to start. I can actually tell you specifically how the high-pressure compressor part of the turbofan 10 is designed, including for the fourth-generation engine that will be upgraded to a thrust ratio of 10 in the future. With the margin left, these parts are actually not very difficult..." "But if you talk about it before the overall design of the QC300 is finalized, I''m worried that it will interfere with your thinking." "I suggest Mr. Yan to change the angle, put aside everything except the combustion chamber and turbine, and design a set of axial flow compressors from scratch based entirely on the characteristics of naval gas engines. This will only make you more constrained. Less, and the training effect for the technical team is stronger. Yan Zhongcheng stopped writing thoughtfully, touching his chin while thinking about Chang Haonan''s words. "For example, compared with aerospace engines, marine gas engines are relatively less sensitive to weight, but they may need to work under lower operating conditions for a long time, especially if full-combustion power is used in the future." Therefore, we can try to adopt an adjustable vane control strategy at the design level of the 7-stage high-pressure compressor. By changing the vane angle, we can provide an ideal angle of attack for the rotor of the subsequent stage, and establish a control strategy suitable for the load of each working condition. The inter-stage matching conditions allow the engine control system to automatically select the most appropriate vane angle for different operating conditions, improving surge boundaries and work efficiency. "In addition, marine gas turbines do not need to consider performance optimization under supersonic operating conditions, so there is no need to take into account the problems caused by too high a boost ratio. The total pressure ratio after removing the fan can be increased to 24, or even above 26 , to improve output power and fuel economy..." "In general, before officially establishing the project, you can first consider doing some preliminary work with relatively low investment, such as using a relatively simple one-dimensional average streamline method to establish an aerodynamic parameter calculation model, and then see if you can cooperate with the Navy and other places Cooperate with units that use other types of gas turbines to compile a model library for performance prediction. "In this way, when you need to build a gas turbine model with variable dimensions later, at least you don''t have to build the wheel from scratch..." Also, from a cycle perspective, simply placing an intercooler between the high- and low-pressure compressors will have a relatively small impact on the cycle process itself, but it can significantly reduce the compression power consumption of the high-pressure compressor. In this case, you can consider taking the lower inlet air temperature into consideration when designing the high-pressure compressor..." Although Chang Haonan said before that this is not specific technical guidance, for older generation technicians like Yan Zhongcheng, things in the research and development direction are more important. Therefore, the latter still picked up his pen and wrote down almost word for word what Chang Haonan said... (End of chapter) Chapter 988 Meet your opponent in chess Chapter 988 Meeting an opponent in chess In fact, Chang Haonan was also somewhat interested in this symposium. It''s not that he was worried about the outcome of Yan Zhongcheng''s battle with the opponent, so he had to play in person. Mainly just to satisfy curiosity. Before, he had only learned about the current general situation of 052C from a few words from Lin Qing and Wang Xiaomo. Its not clear what this key model, a link between past and present, looks like now. And since the Navy has put forward the idea of ??"continuing to improve the 052C", the updated 052D should at least have a master plan. Considering that the power of two QC300s is 20% more than that of two GT25000s, this model is likely to choose a more radical design solution. Of course, with Chang Haonan''s current position, if he specially sent a letter to ask, he would definitely get a response. But if we work hard just for such a thing, it seems a bit unworthy... However, interested is interested. Since the Naval Equipment Department specially held such a meeting before the official selection, and only invited technical personnel at the institute level to participate, it was obviously intended to reduce the impact of the selection results on the selection results by the top brass of the two major military industry systems to a certain extent. non-technical impact. Chang Haonan, as the chief designer of Turbofan 10, is in a special situation and can of course be interpreted as a technician. But this is breaking the rules of the game The Aviation Power Group has sent a leader, so for the sake of reciprocity, does the Shipbuilding Industry Group of another company also have to send a leader? As soon as you two sit there, the Naval Equipment Department will be a little overwhelmed. So do the general assembly and navy chiefs also need to be present? Then what kind of symposium is there? Just make the selection in advance... Therefore, Chang Haonan finally suppressed his eagerness to try. The symposium is scheduled for February 26, three days later. The situation was similar to what Chang Haonan had estimated before. The leading roles are the Aviation Power Institute 606 and the Shipbuilding Industry Institute 703. However, the other research institutes invited were not entirely foils. Because the theme of this symposium is strictly speaking "Development of Ship Power System". In addition to the core gas turbine, gearboxes, propulsion systems, cruise diesel engines, power generation auxiliary engines, etc. were also included in the discussion. Of course, not every one of these involves selection issues. At present, China''s scientific research resources are still relatively limited, and it is impossible to afford free competition among multiple parties in all fields. As for private enterprises For private enterprises in the early 21st century, there is no need to count on that. In fact, according to the original plan, even the gas turbine should have only one option. You know, China has been exposed to UGT25000 from Ermao since the early 1990s, and a few years later decided to use it as the power system of 052B/C and localize it. By this time in 2002, this project had been progressing step by step for about five or six years. However, a competitor appeared halfway through that no one expected At the founding meeting of the Aviation Power Group, Chang Haonan said that he would build a 30-megawatt aeroderivative gas turbine. This is something everyone knows. But the problem is that in order to change aviation, you must first have aviation. The common estimate in the industry at that time was that the Turbofan 10 would be completely finalized around 2005. After that, it stabilized for a period of time, and then the project was initiated to develop an aeroderivative gas turbine. Then, after the gas turbine was finalized, it was not until 2010. In other words, everyone feels that the high-power gas turbine of the Aerospace Power Group should be prepared for the next generation of brand-new surface ships. As a result, even Chang Haonan did not expect that the production and finalization of the turbofan 10 would be so smooth that he could start considering the design of the QC300 in early 2002... which disrupted the Navy''s previous equipment update plan. For Institute 703, which has already studied GT25000 extensively, this matter is even more outrageous. While eating hot pot and singing songs, the project I got was suddenly blocked. How can I bear this? Therefore, when the symposium came to the topic of gas turbines, Wen Xueyou, the chief engineer of the 703 Research Institute in charge of GT25000, directly presented the results of these years of visiting... "I believe that comrades in the Navy are already very familiar with the performance of the UGT25000 prototype. I will only give a brief introduction here. It has currently been tested on the 052B Type 168 ship, and its performance is fully in line with expectations. The 052C type that has entered the equipment outfitting stage also uses this model..." Compared with QC300, the main advantage of GT25000 is that the situation is known and can be taken almost immediately. Thanks to the rapid progress of the overall level of China''s machinery industry on this timeline, the latter''s localization process has been almost smooth sailing since the turn of the millennium. After a brief background introduction, Jacky Wen quickly entered the topic of today: "The next thing I want to focus on is that while we are domesticating the GT25000, we are also improving and upgrading it." "First of all, as early as the late 1990s, our institute constructed a zero-dimensional full-machine model and a two-dimensional component-level model of the GT25000, and based on this, we conducted theoretical research on the feasibility of adding an intercooling heat recovery system." "Later, we also carried out intercooling and recuperation modification on a 401A gas turbine based on the research results, and completed the preliminary program demonstration as a technology demonstrator." "According to the test results, its thermal efficiency has increased by about 3.8% compared with before the transformation, and its output power has increased by about 5%..." The development direction of marine gas turbines is tangible, so it is expected that Institute 703 will also consider the intercooled heat recovery system as a future upgrade route. As for taking advantage of my experience in marine power to develop a prototype prototype as early as possible, it is even more logical. Therefore, after Jacky Wen finished introducing this part, he glanced at Yan Zhongcheng sitting below from the corner of his eye, and found that the latter did not seem to show any emotional fluctuations. This made him a little worried. However, Jacky Wen quickly adjusted his mentality. Because, there is another "free trick" later. He turned the PPT to the next page. Above is the title of part two: Adaptive handling receiver. On the other hand, compared with aeroengines, while pursuing higher efficiency under design conditions, marine gas turbines also require better stability at non-design speeds. Therefore, it is necessary to ensure that marine gas engines have high performance at high speeds. In addition to efficiency, its actual operating stability under lower working conditions should also be specifically considered. After a short pause, Jacky Wen continued to introduce: "For this reason, we designed an adaptive processing casing while trying to keep the core components as common as possible. It has openings at the leading and trailing edges of the moving blades, and is connected through a bridge structure in the middle. Using the front and rear The pressure difference between the two openings causes the airflow near the rear opening to open forward, thereby changing the core of the tip clearance vortex and effectively weakening the generation of secondary flow from tip leakage..." "This design can take into account compressor efficiency and stability margin, and is suitable for blocking stalls and tip overload stalls in cusp stalls, as well as modal stalls." According to simulation tests, when the compressor is in modal stall, the new adaptive casing can expand stability by up to 2%, and when the compressor stall type changes to cusp stall, the stability expansion effect can reach 6%. Overall, It can increase the average thermal efficiency of the steam turbine by 3.5% under operating conditions below 50% speed, while the efficiency at the design point is only reduced by 0.23%, with almost no adverse effects..." Yan Zhongcheng was quietly listening to Jacky Wen''s introduction below, his expression gradually becoming playful - The other party just mentioned the difference between marine gas turbines and aviation engines, obviously to emphasize their lack of experience in the field of marine power. Of course, we must admit that this adaptive receiver technology is indeed quite clever. With a relatively small cost, both high and low speed performance of the gas turbine are achieved. It can be regarded as solving a huge pain point of gas turbine power. If I had come to the meeting earlier, I might not have been able to come up with any good solutions. But now, things are different - Three days ago, the multi-level adjustable static leaf matching technology proposed by Mr. Chang seemed to have the same goal but a tit-for-tat meaning... (End of chapter) Chapter 989 So scary jpg Chapter 989 So terrifying.jpg ??After Jacky Wen finished speaking on his last page of PPT, he turned around, stood on the podium and looked around. The following technical personnel from the Navy and other fields were either lowering their heads in thought, nodding their heads, or writing furiously... In short, they all showed a very serious attitude. Obviously, his introduction this time had a good effect. Seeing this scene, Jacky Wen couldn''t help but breathe a sigh of relief. He put his hands behind his back, and he felt like he was looking down on the world. Although the foundation of GT25000 is indeed not as good as QC300, this is mainly reflected in its design as an industrial gas turbine. Whether it is power generation or pipeline power, there is no need to pursue extreme compactness. After switching to marine power, this aspect became a shortcoming that was difficult to optimize. However, Jacky Wen felt that, regardless of future matters, if he ate the power system of the 052 series follow-up ship today, the problem should not be big. On the one hand, the index performance of GT25000 is not bad, and it also has considerable upgrade potential, which is completely sufficient for the 052 series. On the other hand, it is also more important. He has seen the gas turbine designed for the Type 054 frigate based on the 606 turbojet 14. From a technical point of view, it is indeed close to impeccable. But it can be seen that the other party is still designing gas turbines with the same ideas as designing aviation engines. For example, in order to improve fuel economy under normal conditions, a relatively low design point speed has to be selected, resulting in a certain impact on the maximum power and corresponding efficiency of the speed. It is precisely for this reason that today he specifically mentioned the receiver adaptive processing technology that can broaden the working range. After all, even with a diesel-fuel alternating power system, the gas turbine cannot always operate at high speed. Cruise diesel engines generally can only provide a speed of just over 10 knots, and if you want to go faster, you have to start the gas turbine, whether it is 20 knots or 30 knots. With this thought in mind, Jacky Wen slowly walked off the stage amid a burst of warm applause. Even in the process of returning to his seat, he even made a slight detour and passed by Yan Zhongcheng. It turned out that although the other party was also lowering his head to remember something just now, the content was different from what he imagined - Although it was just a short walk, Jacky Wen still managed to catch a piece of content with his excellent dynamic vision. "The casing processing has little impact on the core part of the whole machine, and the effect is poor compared to xxxx technology..." "Is it possible to consider combining receiver adaption and xxxx technology?" "hiss" Jacky Wen held his breath almost subconsciously. Yan Zhongcheng''s handwriting is very fast and the time is short, so many of the handwriting can only be half recognized and half guessed. But everyone is engaged in gas turbines, so most of the content is not difficult to guess. Only the xxxx technology, I didnt see what it was at all. Jacky Wen spent a few seconds picking out all the proper nouns in his mind and comparing them, but he couldn''t find any matching ones. At this moment, he who was so confident just now finally realized that something was wrong. Regardless of what xxxx is specifically, it seems that the purpose of the other person taking notes is not, or at least, not just to learn ideas as I thought before. It''s more like... Prepare countermeasures. This countermeasure was not even thought of on the spur of the moment. But it was prepared in advance. Yan Zhongcheng wouldn''t just make up a technical term to deceive everyone, right? Just like that, when Jacky Wen sat back down in his seat, a thin layer of sweat even appeared on his forehead. He didn''t even hear an engineer from the Shanghai 711 Institute asking technical questions. He didn''t react until the other party called him again. Institute 711 is responsible for the research and development of marine diesel engines. It''s just that it''s not the cruise main engine, but the power generation auxiliary engine. "Mr. Wen." The other party looked over and said: "Is it possible that the technology you developed can be used in the intake rectification of internal combustion engines?" Jacky Wen had no choice but to turn his attention away from Yan Zhongcheng for a moment: "Of course it''s no problem in theory, but I remember that internal combustion engines don''t rely on airflow characteristics like gas turbines. Just ensure enough air intake..." "Of course this is usually the case, but if it is a diesel engine equipped with a sequential supercharging system, in some special cases it is still necessary to make some adjustments to the air flow, but it does not need to be as precise as your steam turbine..." Just as the two were discussing the issue, Yan Zhongcheng was already standing on the podium. The conference room, which had been slightly noisy before, became quiet again. "I just listened to Jacky Wen''s introduction, which was very beneficial to me..." After a brief opening remarks, Yan Zhongcheng directly praised Jacky Wen. However, from the latter''s point of view, this flattery seems to have a bit of yin and yang, and even means to take pleasure in others'' misfortune. This made him frown. The inner uneasiness became more and more intense. "Compared to the GT25000, which is very mature and has even been installed and tested on ships, our QC300 should be considered a new face to our colleagues in charge of power system research and development." Yan Zhongcheng said with a slight smile in his tone at the beginning. But at this point, the conversation immediately changed: "However, judging from the performance indicators alone, comrades in the Navy may feel a bit familiar..." He said and turned the PPT to the second page. Upstairs is a quite detailed performance data table. The content is naturally what Chang Haonan said before. QC300 has not officially entered the research and development stage at this time, so it is naturally impossible to have such detailed content as the power-speed curve. However, as far as the current situation is concerned, it is enough. Almost at the same time as the form was released, there were several bursts of exclamations in the venue. Not because of basic numbers like power and efficiency Although these data are equally dazzling, Chang Haonan had already drawn the pie when the Aviation Power Group was established. It''s a part that everyone has been mentally prepared for. The key is the features of this model. Size, weight, box-packed design, and some modular ideas. Although even a layman can tell at a glance that the QC300 and core machine are structurally very different from the TF39 and have no technical connection. But for installation, use and maintenance, the shadow of LM2500 can indeed be seen. This is also the advice Chang Haonan gave a few days ago - For the Chinese Navy, the LM2500 is the undisputed white moonlight as a ship power. If the acquisition channels were not locked, there is a high probability that there would be no GT25000 at all. Although the QC300 is not the LM2500, it can benchmark in all aspects and even surpass the newly installed LM2500+ in key indicators. Even from an emotional point of view, it has enough lethality. After deliberately pausing for a while, Yan Zhongcheng continued to enlarge his moves: "Every comrade should be aware that the turbofan 10 designed by the general manager of our office has been installed on the J-10A and J-11B models and has officially passed the production finalization at the beginning of the year. Calculated from the establishment of the project, it only cost a lot of money. to five years, so in fact, there is no need to worry too much about the development cycle of QC300..." "Currently, the first two Type 052C destroyers are close to being launched, but as far as I know, there is no clear plan for the construction of follow-up ships. Judging from the timetable, QC300 can fully catch up with the progress of follow-up ships and even follow-up models..." For the navy, this passage is absolutely lethal - The speed at which the Chinese aviation equipment has been introduced over the years has been noticed by everyone. It can even be said that the reason why the Navy has the idea of ??continuing to improve the 052C is largely influenced by this... Or rather stimulated by it. Now that Yan Zhongcheng has spoken out directly, he has naturally gained a lot of recognition. As for some of the Spring and Autumn writing style in this paragraph, such as "Turbofan 10 is responsible for the arrest of 606" and other details, no one cares about it. Jacky Wen sat in the audience and adjusted his posture awkwardly. He knew that if he only judged from the current situation, then the opponent could only have some advantages on the scene at most. Just by mobilizing emotions and playing emotional cards, you can win for a while but not for the rest of your life. After all, when making the final selection, everyone has to come up with detailed technical solutions. But the words Yan Zhongcheng just wrote in his notebook made him unable to let go. Thinking of this, Jacky Wen moved his eyes away from the curtain in front and turned to Yan Zhongcheng''s seat just now. The notebook was quietly placed on the small table next to it. At the same time, Yan Zhongcheng''s introduction also happened to come to this part. "In fact, after our QC130 was finalized, we also learned a lot of experience and lessons from it..." He certainly couldn''t say that he had just asked Chang Haonan for temporary help two days ago, so he had to push the source of this technology''s ideas to the reflection on QC130. However, this explanation is almost seamless, and it is impossible for someone who does not know the inside story to find anything wrong. "Including what Mr. Wen just mentioned, naval gas turbines need to work at a speed far lower than the design point for a long time, so special attention needs to be paid to considering the actual performance under low operating conditions..." Hearing this, Jacky Wen''s heart tightened suddenly. He knew the point was coming. In order to fundamentally solve this problem, we plan to use multi-stage adjustable stator vane matching technology on the high-pressure compressor of the QC300 to ensure its stability and high performance under all operating conditions. The basic principle is to adjust the speed according to different speeds. Different stator blade attack angles and blade tip clearances are selected for the intake flow characteristics of the lower compressor..." With a "click-" sound. The pen in Jacky Wen''s hand fell off. He has now thought that the "xxxx" that he couldn''t understand before was actually the four words "adjustable static leaf". Obviously, I still greatly overestimated the negative impact that lack of experience would have on the other party. In other words, the other party''s ability to self-correct is greatly underestimated. Regarding the imperfections of QC130, others have already begun to make adjustments before the trial of 054 has begun. It can almost be said that the celebration banquet and the reflection and summary meeting were held together. Such efficiency, and such execution... A sense of crisis suddenly came to my mind. "What a terrible opponent..." He bent down and picked up the pen, thinking silently at the same time. (End of chapter) Chapter 990 Adults have a choice Chapter 990 The adults choice is to have it all After all, it is not a formal selection, and there are not many experts in the field of gas turbines sitting below. It is impossible for Yan Zhongcheng to spend several hours explaining the technical points of aviation diversion. Furthermore, he hasnt really started taking over the design work of QC300 yet, so even if he wants to talk about it, he cant say much yet. Even today, when the Turbofan 10 has been produced and finalized, Chang Haonan is still the only one who can truly understand the key points of the design of this model from the inside out. In short, it took Yan Zhongcheng about twenty minutes to introduce all the content he had prepared. As for the comparison results between the two models no result. The core purpose of today''s symposium is communication. The Navy must first determine its next shipbuilding plan. As for selection, that is a matter for later. Of course, everyone still has a balance in their hearts. Originally, after Jacky Wen finished speaking, most people thought that "the old model will still be reliable in a short period of time." As a result, now, quite a few of them have become "new models seem to be quite stable"... Not to mention that the latter has the upper hand, at least the balance has begun to swing - The intercooling and reheating technology has been mentioned on both sides. Even the content is similar, and the plagiarism check rate is suspected to be unable to pass the preliminary examination of the graduation thesis. And they are all painted cakes. As for the special design for stable operation under low working conditions, everyone originally thought it was the trump card of 703. When I looked back, I saw that the neighbor also took out a... shuriken? In short, the styles are different, but the functions are similar. The conference room fell silent for a while. Everyone is thinking. For Jacky Wen, the only weakness that opponents can point to at present is the uncertainty of the research and development process. After all, the adjustable stator vane matching technology involves modifying the high-pressure compressor, and the risk is much higher than the 703 Institute''s solution of only adjusting the casing. But first of all, we are all decent people, and it is not good to be too aggressive in this situation. Secondly, someone else just took out the example of turbofan 10. It''s not quite the same thing, but it''s certainly convincing. For the Navy and the participants responsible for the overall plan design, there are even more things to consider... "Mr. Zhu, do you have a more mature plan for the subsequent improvement of 052C...or at least an idea?" Li Jiang, the head of the Naval Equipment Department sitting in the first place, looked at Zhu Fuying next to him and asked first. The latter is the chief designer of the two models 052B/C. Of course, he has now been transferred to the deputy director and chief engineer of the 701 Institute. Belongs to the successor of the veteran academician Pan Jingfu. "Originally there was..." Zhu Fuying exhaled a breath of helplessness, and then straightened her somewhat scattered gray hair: "However, the design of 052C... is actually mainly ship-based equipment. It has undergone a major adjustment in the middle, which has taken up many projects planned to be deployed in the next upgrade." Even for the experienced Zhu Fuying, this situation is really rare - In terms of improvement, there are actually a lot of things that need to be improved on the first two 052Cs. First of all, the new general-purpose vertical hair has a diameter of up to 850mm. Although the rows are more densely packed, it takes up a larger area than the previous special vertical hair that was specially used for Haihongqi 9. Secondly, the Z-12 planned to be put on the ship has a larger footprint (mainly wider) than the Z-9 and Ka-28. In order to ensure the speed, the 052 series has a relatively narrow hull width, so even if the single hangar is Setting it up on the left side still doesn''t leave much room on the other side. This "universal" vertical launcher is mainly due to future war considerations. Currently, there is no second type of bomb other than Haihongqi 9 that can be loaded, and the Chinese Navy is in urgent need of means to attack the sea. Therefore, the two inclined quadruple anti-ship missile launchers in the middle and rear of the hull were still retained... In the end, we had to squeeze in two 8-unit vertical launchers between the anti-ship missile and the hangar, and they were not even placed on the entire ship. On the central axis, a 32+16 configuration was created. Not only is it not good at sustaining firepower, it is also very unfriendly to obsessive-compulsive disorder. Therefore, in the future, we must develop an anti-ship missile that is compatible with vertical launches, and replace the eight eye-catching Eagle Strike 62 missiles with vertical launchers. He even reserved space on the ship''s hull. However, this improvement is so small that it is hard to say whether it can be singled out as 052C(M). It is impossible to have a separate model of 052D. But having said that, if we want to fundamentally solve the problem of insufficient space in the ship body, the amount of work will be huge... After organizing his language a little, Zhu Fuying continued to explain: "If the Navy believes that the current technical status of the 052C is suitable for batch construction as a main ship, then our next step is to fine-tune and optimize the surface equipment of this type of ship in batches to ensure that it can be built in the shortest possible time. Form combat effectiveness and mass production capabilities. "But if we can obtain more powerful power, we can also consider further modifications based on the current hull, reducing the aspect ratio from the current 8.6 to about 8.2, and correspondingly increasing the displacement to the 8,000-ton level. In this way It can completely solve the problem of tight space on the ship body, and even reset the double hangar..." Obviously, as a pure technician, he did not want to show too obvious tendencies, so he introduced the two current ideas. "Would the technical difficulty of the second option be too great, I mean...if the hull is adjusted?" As the person in charge of the equipment outlet, Li Jiang is naturally interested in more advanced options, but at the same time he has to consider the risks. "The technical difficulty is actually pretty good." Zhu Fuying replied: "Although the 052 is a series, from the earliest Type 052 to the current Type 052B/C, a large-scale change has been made to the hull in the middle. So should we change it again... We also have experience." "But considering that this change is not simply amplification, but also involves internal structural adjustment, the workload will indeed increase a lot, and the research and development cycle may be longer. At least it cannot be made and modified at the same time. I am afraid that there will be a pause in the middle... Uh... about three or four years..." In fact, he originally wanted to refer to the development cycle of 052B and say six to eight years. But then I thought about it and realized that the conditions now are completely different from those ten years ago. If the gas turbine itself could be developed in time, then a single ship body would not take that long anyway, so he changed his mind midway. And this seemingly casual change of words had a huge impact on Li Jiang''s heart. Waiting three to four years is completely acceptable to the Navy. Originally, according to the plan, even if we continued to build the 052C, we would have to wait until the GT25000 was fully domestically produced before starting to increase production. It probably takes about two years. Now as long as you wait a year or two more, you can get a completely redesigned and upgraded model. Well done with blood. But in this way, the choice of introducing and localizing the GT25000 seems a bit clownish... And to undertake this task, we even built an upgraded 703 institute on its basis... If Chang Haonan saw this scene, he would definitely exclaim NTR in his heart. Although Li Jiang did not have this concept, he also felt that it seemed inappropriate. He turned his head slightly and glanced at Jacky Wen, who had a somewhat unpleasant look on his face. At this time, another officer next to him suddenly interjected and asked Yan Zhongcheng and Wen Xueyou on the other side: "Mr. Yan, Mr. Wen, after I just listened to your introduction, I have an immature idea." For a moment, everyone''s attention was attracted to him. The plan proposed by Mr. Yan is to modify the design of the stator blades of the high-pressure compressor, while Mr. Wens plan is to open the casing at the leading and trailing edges of the moving blades, but the ultimate goal is to achieve a very Design point performance optimization. "Then...is there a possibility that you two can combine technologies and jointly develop a model with better performance..." After listening to his suggestion, the two principals did not immediately express their opinions, but just lowered their heads and pondered silently. But Li Jiang''s eyes lit up instantly. (End of chapter) Chapter 991 QC300, project approval in April! Chapter 991 QC300, project approval in April! In fact, from the very beginning, there were no regulations saying that naval gas turbines must go through a bidding process, then model selection, and finally the winner will be decided among the two models. It''s just a coincidence that I now have two suitable gas turbine models on hand. QC300 obviously has stronger performance and development potential. However, the localization of GT25000 has been promoted for almost ten years and has consumed a lot of manpower and material resources, so it cannot be just thrown away casually. If we put it in developed countries, this is actually not a problem. But China does not have a large enough market to accommodate two competing products at the same time Civilian ships do not require quietness and quick start, and expensive gas turbines are rarely chosen for power. And until sufficiently reliable and low-cost sources of oil and natural gas are obtained, it will be impossible to use gas turbines to replace coal-fired boilers for power generation on a large scale. As for being used as an energy source to drive compressors or pumps in the industrial field... The prospects are very good, but currently it can only be considered a niche use. Therefore, everyone unanimously took aim at the destroyer''s power system. But choosing one now almost means giving up the other. Its not just as simple as giving up a model. It will also cause a huge blow to the technological development route behind the model. And if these two technical lines can be retained through cooperation, it will obviously be a win-win choice. The GT25000 is just not suitable as a ship power, and it is not really very backward. With the development of the national economy, if the demand for industrial gas turbines increases in the future, it can still be used to its advantage due to its relatively low cost and the fact that Soviet products are generally not very picky about fuel. And even from the perspective of the navy, retaining the gas turbine research and development capabilities of ship systems will leave more paths for the future. Only when the number of Party B is greater than or equal to two, Party A can enjoy the pleasure of being a father. However, Li Jiang did not reveal his intention immediately, but made a roundabout way first: "As for specific technical issues... I think it''s better to leave it to professionals to make their own decisions." As he spoke, he glanced in the direction of Yan Zhongcheng and Wen Xueyou, paused briefly, and then continued: "Of course, if the combination of the two technologies can really improve the final performance of the product, then we as users will definitely be happy to see the results." "In addition, I remember that Mr. Wen just said that the 703 Institute has completed a principle prototype of intercooling and recuperation, and Mr. Yan is preparing to build a two-dimensional component-level model including the intercooling cycle." "I wonder if there are parts that can complement each other in this aspect?" In fact, since the idea was first proposed, both Yan Zhongcheng and Wen Xueyou were a little tempted. For the former, cooperation with colleagues in shipbuilding industry is itself one of the options that Chang Haonan has considered. After all, the 606 Institute currently has three ongoing projects, namely the Turbofan 10H, M88-3 and SeA650, and a fourth-generation engine, which is the pre-research of the Turbofan 10G. Although the plan for the subsequent Turbofan 20 is led by Hao Jing, 606, as the big brother in the aviation development field, will definitely not be able to do nothing. The resources and manpower that can be allocated to QC300 are already quite tight. For Jacky Wen, if he insists on carrying out model selection, the result can only be a total victory or total defeat. But Institute 703 is not as big as the other company, and GT25000 is a project they must ensure is foolproof. If orders from the Navy are completely lost, development will be very difficult in the next few years, or even longer. In this case, a safe choice that although it will not win, but will certainly not lose, is undoubtedly more tempting than direct stud. Besides, looking at the current posture, if this one really goes down... The winning rate is probably not optimistic. However, it is one thing for them to be tempted, and another thing to actually agree. Although cooperation does not mean that the two models merge into one, in any case, this is a cross-group behavior, and it also involves a fairly complicated distribution of interests. It is definitely not something that can be agreed upon by the two chief masters. Therefore, neither of them can express their opinions. "Director Li." It was definitely not an option to remain in a stalemate like this, so in the end, Yan Zhongcheng broke the silence: "I''m afraid this matter needs to be made at the group level before a final decision can be made. However, after I return, I will report the thoughts of my naval comrades as soon as possible." "Only from a personal perspective, I think cooperation is feasible." Next to him, Jacky Wen immediately made the same statement: "I personally think cooperation is feasible. After I go back this time, I will report the situation and my personal opinions to the group for reference..." After the two-day seminar, Yan Zhongcheng immediately found Chang Haonan and briefly described the meeting to the latter. Naturally, these include the two improvement plans proposed by Zhu Fuying for 052C - This is what Chang Haonan specifically told Yan Zhongcheng to remember before. "It seems that the navy and comrades in the shipbuilding industry still have full trust in us..." Chang Haonan, whose curiosity was satisfied, was in a good mood: "Since Mr. Zhu can propose the second major modification plan, it means that they have already considered the possibility that the QC300 gas turbine can be installed on ships and put into use in a short time. This is a major benefit for us." The first of Zhu Fuyings two plans is basically a replica of the 052D from the previous life. Even the power is the same two GT25000 plus two license-produced MTU956. There is nothing to say. But the second one really suits Chang Haonan''s liking. The 8,000-ton displacement means that the cost will not skyrocket. However, after improving the aspect ratio, the hull space and seaworthiness have been greatly improved. As for motivation At a certain moment just now, Chang Haonan even thought of the relatively radical combustion-burning alternating drive form. That is to say, two high-power QC300 models are used as propulsion gas turbines at high speeds, and two low-power models are used as cruise gas turbines at low speeds. Unfortunately, cruise gas turbines only require a total of 8-10 MW of power, so even a single 13 MW QC130 is still too big. Therefore, there is a high probability that we will still have to return to the alternating diesel-fuel mode of two QC300s and two MTU956s. "Actually... they mainly trust you, Mr. Chang." Yan Zhongchengs words definitely come from his sincerity: "The QC300 itself has not even been approved as a project, but the results of the Turbofan 10 are real and can be seen by everyone." "Don''t put the credit on my head." Chang Haonan waved his hand: "On the other hand, if there is no QC130 Zhuyu in front, which has successfully passed the test and been installed on the 054, others may not be optimistic about the technical route of the aeroderivative gas turbine." "After all, before that, the performance of several aeroderivatives produced by our aviation industry system was generally not mentioned, and the research and development process was... quite tortuous." The "more tortuous" models in his mouth are mainly the turbojet 6G, which was intended to be used as a ship power but failed, and the Sibei Aircraft Diesel, which was stillborn. It can be said that if the Turbojet 14 hadn''t entered Lin Qing''s sight at the very right time, thus giving birth to the QC130, Institute 606 might not even be able to get tickets for naval equipment selection. After some mutual compliments, Yan Zhongcheng returned to the topic: "Then Mr. Chang, please take a look...the cooperation proposal put forward by the Navy..." "As long as the model is mainly QC300, then I have no objection." Chang Haonan immediately replied: "Of course, a formal decision may need to be made by the leadership team at a meeting, but the result should not be in any suspense... It mainly depends on whether the other party is willing to join our R&D team." "Besides, since we have to cooperate with others, we can''t continue to be anonymous. We need to have a formal project anyway." "Mr. Yan, prepare the relevant materials when you go back. After I am busy with March, I will try to complete the QC300 project before the end of April!" (End of chapter) Chapter 992 We went up with A! Chapter 992 Lets go up! For Chang Haonan, this symposium of the Naval Equipment Department was actually an unexpected episode. Fortunately, according to the 2002 work plan proposed at the end of last year, the QC300 project was supposed to be launched this year, so it would not disrupt too many arrangements. Yan Zhongcheng may not be the best in ability, but he is experienced and reliable. It is generally reassuring to entrust him with the project preparation work. As for the thing he told the other party that he would be "busy in March", it was naturally the Numerical Algorithms and Computational Science Conference. In fact, before this, Chang Haonan had never thought about how influential this matter would be. He first came up with the idea of ??holding an academic conference, which was similar to Yuan Yaxiang and others'' idea of ??establishing JCAS, which was to hold an academic conference focusing on China. On a larger scale, it can be regarded as breaking the Western monopoly on academic evaluation power. But a more practical idea is not to steam the steamed buns to get a good reputation. By the way, through the conference, we can see if we can discover, or to put it bluntly, win over some researchers like Professor Harold Huang who have real talents but have been buried. However, he still underestimated himself a little, or underestimated the influence of the entire numerical computing industry in recent years. After the conference was publicized, the academic and business circles responded so overwhelmingly that the relevant departments did not need to make special statistics. They just intuitively discovered that the number of people applying for Chinese visas had increased abnormally. Large-scale foreign-related activities require registration and application, so as long as you compare the date of visa application and the registration status, it is not difficult to find... It turns out it''s your kid who''s causing trouble! So, the day after Yan Zhongcheng was sent back to Shengjing, a slightly surprising person came to his door. Of course, I didn''t find the Torch Laboratory directly this time. Instead, we met at the headquarters of the Aviation Power Group as usual. "Hello, Mr. Chang, I am the person in charge of Beijing''s external liaison department, Zeng Jinsong, you can just call me Lao Zeng..." As soon as the other party entered the door, he introduced himself quite familiarly, and even used titles to invisibly shorten the distance between the two. As expected of the external communication system. "Uh... Director Zeng, why are you here this time?" Although Chang Haonan has seen a lot of big scenes, he still can''t stand the enthusiasm. It was just the first time the two met, and they were not familiar with each other at all. What''s more, it''s better to call your job when you''re working. "That''s right, Mr. Chang." Zeng Jinsong, who seemed to have a hot face but a cold butt, showed no embarrassment at all, and followed Chang Haonan''s rhythm and almost seamlessly switched to work topics: "I received a notice from my superiors a few days ago that your organization will organize a numerical algorithm and computational science conference involving a large number of foreign guests at the end of March, so I came here to ask if you need help from our external relations department in organizing and preparing? " After hearing this answer, Chang Haonan''s mind was a little confused for a moment - He had actually thought about asking the relevant departments in the capital to come forward to help coordinate some organizational issues for the conference. Mainly for the large number of entries and the food and accommodation for the attendees. But later it was properly resolved with the help of brother units within the Science and Technology Commission system, so it was settled. As a result, I didn''t take the initiative to mention it, but now the other party is rushing to help. Is this the treatment of key regional enterprises? Love it, love it. However, its normal to have second thoughts. The external relations system is not a diplomatic system. It is a unit with somewhat awkward functions. It doesn''t matter if the staff below are free, but being thrown into this position is basically equivalent to sitting on the bench. Now it is very easy to catch up and be able to play a role, of course you have to be more proactive. This thought is quite long, but it only takes a second or two to go through it in your mind. However, the hesitation for a second or two looked to Zeng Jinsong from the opposite side, as if Chang Haonan had concerns about it. Therefore, before the latter could respond, he quickly added: "Mr. Chang, please rest assured that we will only send out grassroots management and service personnel. I will personally be responsible and direct all the communication with the organizer, and I will ensure that I will never interfere with your specific work." Looking at this attitude, the words "don''t talk, just work" are written on his face. Chang Haonan suddenly felt guilty as if a landlord hired long-term workers. But the guilt only lasted a moment. No matter how idle the external relations department is, it still has more experience in dealing with foreigners than the Torch Group. Chang Haonan didn''t take the initiative to contact Beijing for help before because he thought it was unnecessary and troublesome, but now that the other party has taken the initiative, and it''s still for nothing, there is no reason to refuse. "Now that Director Zeng has said this, it would be a bit unreasonable for me to refuse..." His answer almost stunned his opponent, Zeng Jinsong We take the initiative to help others, but it feels like you are suffering a big loss... Of course, this is just a rant in my heart. Letting the Liaison Office assist Torch Group in preparing for this conference was a decision made by the superiors in Beijing. If he can''t help with this today, I''m afraid he will be criticized a lot when he goes back... at the same time. Across the ocean, California. In a computer room at Stanford University. The question-answering process for the three participating students has come to an end. In fact, they had completed testing the engineering documents about 20 hours ago, and now they were just checking and filling in the calculation instructions based on the calculation process. "Lemmy, do you think... we still need to show these results to Professor Jameson?" Hermia Moreno rubbed her temples, which were swollen from staying up all night, and asked captain Lyles Connor, who was typing on the keyboard quickly next to her. "Need not." The latter answered almost without thinking: "There are two questions in total, one of which we have almost done the original question before, and the other is almost entirely a test of the basic level of CFD. The software we use also has algorithmic advantages..." "If so many favorable factors are added together and we still need to ask Professor Jameson to help check the results to ensure that we pass the preliminary round, then I don''t think it is very interesting to participate in this final." He stopped what he was doing, shrugged, and turned to look at Hermia beside him: "I''m done here." "I have also checked it and found no problems with the previous parts." The third member, George Forger, who had been silent just now, also raised his head from the computer screen. The three of them looked at each other for a few times. They all saw the exhaustion that couldn''t be hidden on each other''s faces. Although the questions are not difficult for them, the workload is still real. The code that needs to be written and the text that needs to be edited will not automatically appear on the screen just because the question is simple. After a moment of silence, Captain Lyles finally made the decision: "Arrange the project files and documentation, then package and upload them." The competition only stipulates the latest deadline for submission, but does not impose restrictions on "early submission". In fact, in the case of a tie, ranking will be based on the order of submission. Therefore, when you are sure that there is no problem, uploading the results as soon as possible is the right choice. "Aren''t you going to check again?" Hermia actually knew the truth, but the more people reach this "last tremble" moment, the more they worry about gains and losses. "No need." Lyles shook his head and began to organize the contents of the folder: "It is almost impossible to eliminate all errors in a large document in a short time, especially since the three of us are authors, many places are easy to overlook." "And the core of this competition is that algorithms are not literature. As long as there are no problems, even if there are some spelling or formatting errors, it will not affect the final result." When he breaks, he breaks, which is why he can become the captain. And Hermia didn''t really want to submit, so she didn''t continue to refute. As for George, who didn''t talk much to begin with, he was already slumped in his chair, looking like he was about to fall asleep. About half an hour later, Lyles finally entered the official website of the competition, then selected the compressed package and clicked submit. The moment he clicked the mouse, the three people in the computer room breathed a sigh of relief almost simultaneously. There is quite a feeling of "the exam is over, no matter what the results are, I am finally relieved." Of course, they can''t go to rest right away Despite being compressed, the file size is still quite large. So the upload speed is not very fast, and it is easy to fail in the middle. It must be confirmed that the upload is successful. However, after the breath they had been holding back was relieved, the three of them almost immediately felt sleepy sweeping over them. In order to cheer up, Lyles took the initiative and said: "I wonder what''s going on with the group next door..." He was referring to three people from Santa Clara University who also received pre-game coaching from Professor Jameson. "When I was buying sandwiches yesterday, I met someone from their group." Hermia braced herself: "At that time, their progress was about 12 hours slower than ours, and they were still dealing with the last part of the water flow model problem, but I guess they should have it done by now and start writing calculation instructions..." "The efficiency is quite good... After all, their school was not good at this in the past. It is equivalent to only receiving a short-term intensive training class to achieve this level." Lyles gave quite high praise. "I think not only them, but all groups using COMSOL software this time will probably take advantage." At this time, George, who was sitting on the chair next to him, also answered: "Even if you don''t fully understand many aspects, there are presets in the software. You can just fill in the data and do it. Although the effect is definitely not the best, at least it will not calculate divergence and can guarantee a result. This is Its already better than many groups. "After all, COMSOL intends to use this opportunity to promote its software. Otherwise, it would not have come to us specifically. It also said that if it can participate in the finals, it will bear all the expenses..." "Don''t tell me, I haven''t noticed before that their software is so easy to use. I can definitely give it a try when doing research in the future..." But we must also consider that Torch is about to release a new version 2.0, so its hard to say what it will look like by then. "Right" As the three of them chatted, the file upload progress bar slowly came to an end. A dialog box pops up on the screen: There are only two sentences in it: "Upload successful." "Upload order: 77" Seeing this result, Lyles was refreshed: "yes!" He originally wanted to jump up to celebrate, but his legs were a little weak, so he had to shake his fist from his seat. In this kind of competition, many contestants will choose to hand in their papers in advance. Therefore, those who can produce complete results like them and still rank in the top 100 are actually extremely efficient. "Let''s go find the professor and have a good rest for a few days..." Lyles stood up holding on to the armrest of the chair, then led two teammates and strode past Professor Jameson''s office... (End of chapter) Chapter 993 The situation is not a small good, but a Chapter 993 The situation is not a small good, but a great one Facts have proven that, after excluding some special outliers, the overall level of the best students in the world is actually about the same. That is to say, after Lyles Connor and three other people uploaded their answers, the numerical calculation competition backstage began to receive a large number of packaged files submitted from all over the world. According to the competition settings, these project documents will be checked by the referee team, and after confirming that the project documents are complete, they will be submitted to a supercomputer for parallel processing. The final score is comprehensively judged by two indicators: calculation time and calculation accuracy. There will be no ties in the competition. If the scores are the same, the team that submitted the answer earlier will be ranked higher. As a supervisor, the special guest has the right to randomly select answers that have been scored for review. Of course, since the conference is hosted in China, the world''s largest and highest-level numerical computing business team is also in China. Therefore, the vast majority of the members of the referee team are actually from the Numerical Computing Business Department of Torch Group. Therefore, on the deadline for uploading answers, Chang Haonan also came to the computer room specially. Since Liu Hongbo was still in France at this time, the person responsible for managing the entire referee team was Meng Weizheng, the deputy manager of the Numerical Computing Business Department. "Mr. Chang, so far, we have received a total of more than 700 answers from 100 schools and research institutions, and a total of 358 answers from 67 institutions have been judged valid and entered the scoring process," Chang Haonan didn''t even need to ask questions. Meng Weizheng, who saw his boss appearing, quickly stood up from the computer and reported the current answer submission status. "The passing rate is just over half..." Chang Haonan nodded with satisfaction: "This ratio is pretty good." In fact, even though he has extracted three relatively simple questions from the question bank, he is still worried that the difficulty is too high or the evaluation standards are too strict, resulting in too few answers that can pass the completeness check. But now it seems that he still underestimated these juniors who are still in school. Of course, the "secret efforts" of their teachers are definitely indispensable. But no matter what, if there is a live final later, it will not be cheating. "Mr. Chang, it shouldn''t reach 50% in the end." Meng Weizheng suddenly explained at this time: "There are still nearly 10 hours before the deadline, so some answers will be submitted later. Although the number will not be large, most of the project files uploaded at these stuck points cannot even pass the preliminary screening, so it will be pulled A certain lower pass rate This is reasonable. Since the two highest scores are added together to obtain the final score, most of the participating groups directly gave up on one of the questionsmostly the first or third question. In this way, two questions basically require 2-3 days of work. Coupled with inspection and documentation, it should be over in 4 days at most. Unless there are any special circumstances, if you wait until the last day to submit your application, there will most likely be problems. Either there was a mistake in the direction, or it was simply not finished. "It doesn''t matter...it won''t affect the overall situation." Chang Haonan waved his hand: "There are 70 groups and 210 people participating in the finals. This is a large enough scale..." After all, even the Beijing Foreign Liaison Office has taken the initiative to ask for help. If in the end it is found that there are only three or two big cats and kittens, the scene may not be very pretty. "Where are the scoring results?" After a little preparation, Chang Haonan finally asked what he was most concerned about. The three questions in this simulation are not very computationally demanding. Even for supercomputers in the early 21st century, it is impossible to run them to full capacity. Therefore, after the project documents are reviewed, the scores will be determined almost within an hour. Being beaten out. So although the submission deadline has not yet ended, the results of most participating groups have actually been released. It''s just that they will be gathered together and announced in the end. "this" Hearing this question, Meng Weizheng''s face froze slightly: "Mr. Chang, currently the team from Stanford University ranks first in overall score. Although the accuracy of the final result is slightly lower than the second place, the calculation efficiency is much higher. The final score according to the standardized scoring rules is 107.8 points , which is nearly 4 points higher than the second place team from Beijing Hang University in my country. The advantage is quite obvious..." Because it is an engineering competition, the weights of the two indicators of accuracy and efficiency are not linear. Simply put, after the accuracy reaches the basic requirements, further improvement in accuracy will bring little improvement to the score. To some extent, this is also part of the competition review. "Stanford University" In fact, who won the first place in the preliminary round, or even who won the first place in the final, was not an issue that Chang Haonan wanted to pay attention to. He just vaguely remembered that Professor Anthony Jameson, who was employed by COMSOL, seemed to be from Stanford. If this is the case, then the team that won first place is likely to use COMSOL products. And that''s exactly what he expected. As the saying goes, if you want to suppress, you must first promote. He has already dug the pit for the finals. The higher the opponent flies in the preliminary round, the harder they will fall when the time comes. However, in Meng Weizheng''s eyes, this scene was different. "Mr. Chang, when we announce the results of the preliminary round, can we consider not publishing the scores...at least not according to the overall ranking, but instead publishing the scores according to different schools?" He suggested quickly. In terms of scoring, there is definitely no room for maneuver. But there are thousands of participating teams. As long as the competition does not directly release the overall ranking, it is actually difficult to know who has the highest score. In this way, the results of Stanford''s group at least don''t seem so eye-catching. "Huh?" Chang Haonan was stunned for a moment after hearing this, and then realized - The other party would have misunderstood and thought they were annoyed by watching a foreign team win the first place in the preliminary round. So he quickly waved his hand: "It''s not necessary. Just make it public as you want." "Moreover, not only the scores must be made public, but also the scoring sheets, project documents, documentation, and the names, nationalities, and schools of the contestants must be made public." "Since we are holding a competition, we can''t do that secretive thing. The result will be whatever it is, let the whole world watch it together!" These words were so righteous that Meng Weizheng was stunned for several seconds. Then he realized a more serious problem: "Also, Mr. Chang, the results submitted by this group... did not use our software, but COMSOL Multiphysics. If the project files were also made public..." Chang Haonan, who finally confirmed the information he wanted, and his plan succeeded, almost laughed: "It doesn''t matter, just do as I say..." With Chang Haonan''s "protection", the results of the competition were naturally released as scheduled without any glitches. Except for those groups that have given up on the finals, all the contestants who are still thinking about it are eagerly looking forward to this moment. Even more enthusiastic than when I first read the question. So much so that even the server specially rented by the Torch Group experienced a momentary lag. It is precisely because of this that Lyles Connor and the others, who moved a little slower, became the first lucky ones to successfully enter the web page. "Look for a school that starts with S..." Hermia Moreno said eagerly from behind. According to common sense, since it is the preliminary round of selection by school, the results will definitely be announced according to the school. Sure enough, hundreds of densely packed school names were loaded on the page according to their initial letters. Several people quickly found the word Stanford. After clicking in, the names of the three of them were listed first. Although they had expected this for a long time, when they actually saw the results, the three of them could not contain their excitement. Hermia subconsciously covered her mouth to prevent herself from screaming, while the other two were already hugging each other tightly. Even Professor Jameson, who was sitting a little further away and had always had a calm temperament, showed a satisfied smile: "Not bad, good job in the preliminary round..." And soon, they discovered that there was more information on this page. In addition to the common things such as player names, scores, and score sheets, there is also TotalRanking at the end of the table. Overall ranking. And the ranking and TotalRanking of their group were all 1. Also, the word color of TotalRanking is different from others. Obviously a link. The kind you can click in. "etc" George Folger was the first to discover this detail: "Overall ranking 1...can''t be..." He looked at the other people next to him in disbelief. These two words combined with a number seem to have only the meaning they imagined. George reached out his trembling hand to the mouse. After trying several times, he finally clicked on the link. Soon, the browser jumped to another page. Sure enough, it is the total ranking page. And the first one is still the three of them. "oh-" The entire office was instantly filled with almost boiling cheers. Even Klaus Hertz, who had been silent just now, could not hide his excitement. He pinched his jaws hard to control himself from laughing out loud Because he observed, not only the first place. Among the top ten alone, the project files uploaded by the third, fourth and ninth projects are marked with a .cmph extension. That is to say, COMSOL Multiphysics was used as a calculation tool in the competition. win! What a win! (End of chapter) Chapter 994 Preparation for the finals (new January, Chapter 994 Finals Preparation (New January, please vote for me~) In Hertz''s original vision, although the title of the competition was very beneficial to his own side, after all, from the referee to the organizer, to the co-organizer and the witness, all the units were members of the Torch Group. How could you compete with them? Especially in this kind of competition where the scoring method is extremely complicated. Just changing a little bit in any detail is enough to change the entire result. It''s not like they haven''t done this kind of thing before. The experience is so rich. Therefore, Hertzs best expectation at the beginning was that about a dozen teams using COMSOL software would represent their own schools or research institutions in the finals As long as you can show your own banner in the competition held by the opponent, you will be considered a victory. However, the final result was a big one for him. Two of the top three teams are from our own team. Four of the top ten teams are from our own team. As for whats next Sorry, the overall ranking is presented in ten groups per page. In other words, most people will only pay attention to the first page and the page with their team. This is no longer a banner. This is planting the flag in the opponent''s base camp. Although it can be seen that the vast majority of contestants choose to use TORCH Multiphysics, COMSOL has achieved a balance in the high-end rounds with a relatively small sample size. To some extent it can even be said to be an advantage. On the contrary, it further illustrates its excellent performance in the CFD field. The group including Santa Clara University next door, although their results were slightly lower and to a considerable extent improvised, still reached 31st overall ranking. Representing the school also entered the finals without any suspense. And, it''s not just that. The competition rules do not place many restrictions on the calculation methods and calculation tools of the participating teams. There are now almost three weeks until the finals. This means that some teams may temporarily decide to change the calculation software after seeing the preliminary results. Or at least be more prepared. So by the time of the finals, the number of teams in the COMSOL camp is likely to further increase... Even... mainstream! Thinking of this, Herz seemed to have already seen the day when he would step on ANSYS, get promoted and get a raise, and reach the pinnacle of his life. "I think it''s okay to celebrate." Although he was trying hard to restrain himself, his voice still trembled a little. Even the always serious Professor Harold did not refuse this time for the first time. On the contrary, the three students showed amazing calmness. "I think the focus right now is still preparing for the finals." Lyles Connor clenched his fists. It was obvious that he had not gotten over the excitement just now, but he still tried his best to appear calm: "A high ranking in the preliminary rounds will actually bring more pressure to the finals." "Moreover, this result still takes advantage of the questions to a large extent. We cannot expect that we will have such good luck in the finals, so we still need to increase training on special types of questions during this period, such as the first question in the preliminary round If you encounter such a particle flow problem in the finals, you won''t have the opportunity to choose two out of three..." "There is also the issue of combining computational fluid dynamics and computational structural mechanics, which was also a shortcoming in our previous training. Although it is impossible to deal with the difficulty of the preliminary round, it is completely uncertain in the final..." Connor''s rationality also obviously affected his teammates. Hermia and George also expressed their stance and refused to open champagne at halftime. Of course, this cannot be blamed on Hertz. As a representative of COMSOL, his interests are not exactly the same as those of the contestants - For Hertz, having so many teams advance to the finals with such a high ranking is already a win. Even if the results of these teams in the finals are not ideal, that is still an issue that participating teams and schools need to consider. Even if I exhaust my life''s imagination, I can''t imagine how I could lose. So in his view, celebrating now doesn''t count as opening champagne at halftime. Of course, Hertz is not the one without vision. Since someone had already expressed rejection, he didn''t insist anymore. Instead, I started thinking about how to use this time to build momentum. After all, being able to gain an advantage on someone else''s territory is definitely a once-in-a-lifetime opportunity, and you must seize it... at the same time. Compared to the jubilant Stanford, the atmosphere here in China seems a bit subtle. Although the influence of this competition has not yet extended to the melon-eating masses, there is no good media to report such as "This humiliating defeat has become a hot topic in the numerical computing community recently...". But pairs of eyes in the industry are watching. You know, in order to avoid possible intellectual property issues, many companies will buy all the mainstream numerical calculation software on the market. As long as COMSOL can really show outstanding performance in the CFD field, there will definitely be many users willing to try it. Although Torch Group has accumulated usage habits and compatibility barriers over the years, it will not lose much of the market immediately, but for high-tech products such as computer software tools, performance is ultimately fundamental. "Mr. Chang, should we consider making some special changes in response to the situation at COMSOL during the question setting process for the finals?" Although Song Jingming knew that his boss had planned this for a long time, as a non-technical person, he could not understand the turning point of this plan and how exciting it could be, so he was very panicked at this time: "I''m worried that if we can''t give the other party a strong enough counterattack, it will affect users'' confidence in our products..." Before Chang Haonan could speak, Meng Weizheng, who was in charge of the referee team, also expressed his agreement: "Yes, Mr. Chang, because the tiebreaker rules are clearly written and a lot of content is disclosed after the game, what we referees can do is limited. For example, the group ranked first in the preliminary round has an advantage of more than 3 points. It is difficult not to Pull it back without letting people notice it. "In comparison, COMSOL''s software has poor processing capabilities for problems other than CFD. Is it possible to consider setting up some multi-method linkage problems in the finals to offset their advantages in CFD?" Hearing this, Chang Haonan frowned, fearing that the other party would be too clever to make things worse for him, so he quickly warned in a serious tone: "I stress again, your referee team doesn''t need to do anything, just follow the scoring rules and ensure fair and just scoring!" As he spoke, he knocked on the table for emphasis. Seeing this, Meng Weizheng had no choice but to nod, promising that nothing would happen. "As for the topic of the final..." Chang Haonan paused for a moment: "The theme of our conference is CFD, and in the finals, every move we make will be magnified exponentially. If, as you said, in order to offset COMSOL''s advantages in CFD, we will focus on other fields. , cant other experts participating in the conference see it? "But" Meng Weizheng obviously wanted to say something more, but was interrupted by Chang Haonan waving his hand: "Although the specific topic of the final cannot be made public yet, I have communicated with several special guests who came to China in advance about the direction of the topic. It is about the calculation of two-phase flow of polymer melt, a 100% CFD problem, so There is no need to say more about this matter. In fact, Chang Haonan''s initial plan was to simplify the Falcon Z''s wing optimization design problem and then apply it. After all, it was through the engineering documents inadvertently sent by Dassault that he discovered that COMSOL had fatal flaws in calculating the viscoelastic constitutive equation. But after thinking about it carefully, I felt that the Falcon Z project involved too many commercial secrets, and even if it was simplified, it might not be safe, so I changed my mind and "customized" a new question for my opponent. The reason why two-phase flow was chosen is that the finite volume method is not good at dealing with systems with drastic changes in interface topology. Two-phase flow is a typical representative. However, for general gas and liquid two-phase flows, highly complex viscoelastic constitutive equations are rarely used. Therefore, he specially selected two relatively rare polymer melts as calculation objects. A system that is not good at superimposing algorithm flaws. It can be said that it was targeted deliberately. From the perspective of outsiders, this is a standard CFD problem. But in fact, it can directly hit the Achilles heel of COMSOL. Even the Achilles heel that they themselves dont know Chang Haonan himself tried COMSOL several times, and the result was 100% divergent, making it impossible to obtain a valid numerical solution. Not only that. If you are unlucky, even the software may crash. In short, I kept enough shots and just waited for the other party to perform on stage... (End of chapter) Chapter 995 Small wins, medium wins and big wins Chapter 995 Small Win, Medium Win and Big Win Due to the annual conference, the main nodes of major projects are rarely set in mid-to-early March. After all, many leaders and technical backbones are representatives attending the conference, and it would not be good no matter who is left behind. Therefore, most of March passed quietly in a relatively dull daily routine. Until the end of the month According to previous arrangements, the Numerical Algorithms and Computational Science Conference will be held on the last weekend of March, that is, on the 30th and 31st. Therefore, the finals as a warm-up for the conference naturally had to start two days in advance. Considering that it is impossible for players to compete as soon as they get off the plane, they have to overcome jet lag and adapt to the venue equipment, so the entire conference will enter the process about a week before the official opening. Logically speaking, whether it is a competition or a conference, the influence is mainly concentrated on the industry. Even if it is earth-shattering in the industry, it is rarely noticed by the outside world. But things are different this time. On the one hand, this is the first time that a Chinese company has taken the lead as an "industry leader". What''s more, it''s not a traditional industry that tells stories and sells concepts, but a serious high-tech industry. On the other hand... It''s Chang Haonan himself. This is the first time since he solved the Poincar conjecture that he has participated in an event that is completely open to the media. Therefore, even though many media outlets did not even know what the word "numerical algorithm" meant, they still flocked to the capital with the idea of ????making a three-pointer. In short, when Chang Haonan appeared at the conference venue for the first time on March 24 to inspect the preparations as a special guest and sponsor leader, the situation at the scene was a little out of control... In fact, originally, there was no special interview session arranged for this day, but according to regulations, during the preparations for the meeting, media who have passed the security inspection and qualification review can enter the venue to report on the preparations for the meeting, and conduct interviews with consent. staff. So, after listening to Song Jingming''s report and walking around a corner into the central conference hall, he unexpectedly met a group of people wearing media badges. Among the crowd opposite, several people clearly recognized Chang Haonan''s face immediately, so they subconsciously stopped. Others were affected by this and quickly noticed this. "Is that...Mr. Chang of Torch Group?" Faced with the news that suddenly hit their faces, some people were not sure. But no one answered his question. Because everyone has already rushed forward... Even though everyone who appeared here had already passed the security check, this posture still scared Zhu Yadan and the other two security personnel to death. Fortunately, Song Jingming stepped forward in time and stopped the charging crowd two steps away. "Mr. Chang, what are your expectations and wishes for the finals of the mathematical calculation competition that are about to begin?" The first reporter even misremembered the name of the competition, but at any rate he asked questions related to the topic. And Chang Haonan naturally responded in a formulaic way: "As the first competition for students in the field of numerical computing, I hope that the contestants can perform and even break through their original levels. After all, for any industry, young people represent the future..." When Song Jingming heard this answer, he couldn''t hold it back and quickly lowered his head, so that his smile was not noticed by the reporters opposite - As the organizer of the competition, he can see the personal information filled in by the contestants. Although as an international event, there is no effective way to determine the age information of the players, most people will not fill it in blindly. According to statistics, more than one-third of the contestants who finally participated in the finals were actually older than Chang Haonan... So it''s hard to say who represents the future. And after someone started, the questions that followed became more and more free. "Mr. Chang, it is said that Torch Group''s competitor COMSOL performed very well in the preliminary round. Do you have any measures in the final?" This obviously requires a lot of work. "Ahem...there is nothing to target, and there is no need to target." Chang Haonans answer highlighted a great point: "Numerical computing is a large and open market. We welcome all competitors. It is precisely because of their existence that this field has developed rapidly in recent years..." "Professor Chang, there are many rumors outside that you and Professor Perelman may be awarded the Fields Medal together at the International Congress of Mathematicians at the end of the year. What do you think of this?" "I haven''t paid special attention to this matter, so I don''t have any opinion... And if you ask this before the final result is out, it will give people a feeling of being appointed, and the impact will be very bad..." "The prize from the Clay Mathematics Institute will definitely be awarded at the Mathematicians Conference. Do you have any plans for the money..." The reporter just said hesitantly. "Uh... no plans." Chang Haonan shook his head directly. "ah?" The other party was immediately confused by this unreasonable answer. "For me, this is a normal bonus income, and I don''t need to make any special plans..." "oh" The reporter''s hand holding the microphone trembled, and he suddenly felt a little heartbroken... While Chang Haonan was chatting with the Confucian scholars. Beijing International Airport. A United Airlines Boeing 777 slowly stopped taxiing and docked precisely next to the bridge. Most of the passengers on the plane were exhausted from the long-distance flight of more than 13 hours. After hearing the departure channel opening, they stood up like zombies to get their luggage. However, Lyles Connor and others who came to China to participate in the competition still maintained a relatively energetic state by relying on their youth, coupled with the jet lag of being night owls who stayed up late for a long time, and of course their sense of freshness. "I must say, this place is different from what I imagined before I came here." Hermia, who was sitting by the window, said as she gathered her hair, then took out her hat from her bag and put it on: "I thought the capital city should be similar to Mexico City, but before landing just now, I took a special look below and found that at least the overall planning of the city is much neater than that of Mexico, and it is impossible to distinguish the rich areas from the slums at a glance..." It can be seen from the surname that Hermia is a Hispanic student. Although she was born in the United States, she has many relatives in Mexico. Therefore, before today, his only concept of a third world country was Mexico. For this reason, I was once worried about the safety of my group. "Although I have never left the United States before, China successfully bid for the Olympic Games last year..." George Folger, who was sitting outside, had already moved the luggage of several people down, and was just waiting for the people in front to give up their seats one after another: "I think...since the International Olympic Committee is willing to hold the Olympics here, it at least shows that the level of urban construction will not be much worse than Barcelona, ??Atlanta and Sydney..." At the beginning of the 21st century, no country had yet implemented such abstraction in hosting the Olympic Games, so not only Chinese people, but people all over the world still viewed the Olympics in a positive light. In fact, this was also the main reason why China launched a nationwide effort to bid for the Olympics - As a window to show yourself to the world. Who would have thought that he would achieve the pinnacle accidentally. . At this time, Professor Jameson, who was sitting in the front row, also turned around. "I know a few Chinese professors working in the capital. If you want, you can ask him to take you around in the days before the competition." Jameson said: "You have been very well prepared this month. In the last few days, you will mainly focus on adjusting your state. Just be careful not to go too far, and also make sure you get enough rest..." "What about you...and Mr. Heltz?" Hermia looked up at Jameson and Haltz in front of her. "Well...the old man can''t compare to you young people." Jameson shook his head: "After flying down this time, it will be good if I can relax before the meeting..." "As for Hertz..." Before Jameson could finish speaking, Hertz quickly picked up the topic: In the period after the preliminary competition, many companies have begun to realize the value of COMSOL. When he said this, the slight fatigue on his face disappeared, and instead he revealed a feeling of satisfaction: "So before I came to China, I had already found several companies to discuss cooperation. I can''t act with you these days..." (End of chapter) Chapter 996 Finals, begin! Chapter 996 The finals begin! The next few days passed by as fast as a fly. Almost in the blink of an eye, March 27th arrived. According to the competition schedule, the final questions will be announced on time at three o''clock in the afternoon, and then the question answering time will begin immediately. Total 48 hours. Submit project documents and documentation before 3 pm on the 29th. The scoring rules are basically the same as those in the preliminary round, and the scores are determined based on calculation speed, result accuracy and submission time. But there is no two-out-of-three choices, only one must-answer question. Because there were nearly 70 groups and more than 200 people participating in the finals, the venue was divided into three parts. All located in the same conference center building. Considering that the calculation amount of the finals will be much higher than that of the preliminary round, if you use a personal computer to participate, a lot of time will be spent waiting for calculation results and trial and error, and it is likely that you will not be able to come up with the final answer within 48 hours, so Chang Hao Nan even specially found a Sugon 3000 supercomputer and allocated part of its computing power for the competition. As long as players log in to a temporary account and submit the calculation task, they can get the results in 1-2 orders of magnitude shorter than an ordinary PC. Of course, as a final, some necessary rituals must be present. It certainly can''t be like the preliminary round, where the entire website can be refreshed at the right time and download a PDF to calculate the question. Instead, all contestants must be arranged in a conference hall first. After Chang Haonan personally announces the questions, they will then go to their respective computer rooms to answer the questions - It doesnt actually matter if you didnt hear it clearly or didnt remember it, because there will be a pre-set question in the computer. At the same time, since the competition lasted more than one day, there were no restrictions on the players'' movements. Even if you are not used to the computer provided by the competition, you can use your own device. Just pass the test and register in advance. Only registered electronic equipment can be brought into the computer room. Furthermore, they cannot be taken out until the answers are submitted. It can also be regarded as preventing cheating to some extent. After all, numerical calculation is not college entrance examination mathematics, and it is impossible to write the answers on a piece of paper or keep them in your mind. As long as the storage medium is controlled, most methods will be ineffective... It is said to be three o''clock in the afternoon, but many foreigners do not have the habit of taking a nap. So just after dinner, people started to appear in the venue one after another. That also includes the trio from Stanford, Hertz and Jameson Although the leading teacher cannot get involved in the competition itself, the stage of announcing the title itself is included in the opening ceremony of the competition, and it is impossible to exclude others. However, Jameson, as a special guest of the conference, has an exclusive position on the podium, and he is definitely not sitting down to listen. "Tell the truth, Haltz." Jameson looked at Hertz who was following him and said: "Before today, I even thought you might not be able to enter the venue..." This is of course not a mockery of the latter, but as a representative of COMSOL, Herz has been almost continuous in the past three days, signing agreements of intent with nearly 10 industry giants involved in CFD, including software training, database sharing and new Version priority, etc. Although this cannot be said to have successfully poached the corner of the Torch Group, at least the intention of wielding a **** at the host has been clearly revealed, and the appearance of it is actually a bit ugly. In this case, even if you are directly expelled as a troublemaker, others will not be able to say anything. But in the end, Herz''s application for participation was approved directly, which really surprised several others. "To be honest, even I didn''t expect it to go so smoothly." Heltz found a seat in the third row and put his briefcase aside: "Moreover, this makes me even more suspicious that the Chinese people are trying to set a trap on the types of questions in the finals, and then watch us make fools of ourselves in public..." Jameson shook his head decisively: "Probably not." "Now almost the entire industry''s media and users are staring at them. If the final topic is too far from the pre-set CFD topic, then I can raise questions as a special guest, and no one will lose face by then. nice" Lyles Connor sat down in a seat next to him and said immediately: "And in the past month, we have been practicing on our previous weaknesses. Even if we encounter particle flow or infinite boundary problems again in the finals, we will have ways to solve them." "Taking a step back, it''s okay..." Having said this, he suddenly hesitated. After making sure there were no outsiders around, he continued in a low voice: "You can use TORC Multiphysics software to solve boundary problems during the calculation process, and finally use COMSOL to calculate the results, and then submit the project file in .cmph format." "Even if COMSOL is not good at dealing with this kind of problem, it is just a calculation. How can it not calculate a converged result?" After such rounds of persuasion, Hertz, who was still a little unsure, calmed down again. Indeed, his preparations are almost foolproof, and he has even prepared many emergency plans in advance. This includes the kind of subterfuge that Lyles just mentioned. Nothing should go wrong. Thinking of this, Hertz breathed a sigh of relief and prepared to lean back on the chair to recharge his batteries and take a short rest. Tonight, he has another meeting with Toyota... The latter returned to the F1 field in 2002, but as a relatively new team, it was difficult to keep pace with its opponents in terms of wind tunnel and other hardware facilities in a short period of time. Therefore, they are ready to learn from Ferrari''s advanced experience and quickly improve the design efficiency and design level of aerodynamic components through cooperation with COMSOL... Soon, the kick-off ceremony before the finals officially began. There is no long and complicated process as imagined. After Song Jingming spent about 10 minutes reviewing numerical calculations and, of course, the development history of Torch Group (thanks to the short time since Torch Group was established, there really is no history to talk about), it was Chang Haonan who came on stage as a special guest. Guest representatives spoke and read out the final topics. It caught many people off guard who had been prepared to be bored for a while. "Today, I am very happy to see that all the contestants have won the fierce competition from their respective schools, which shows that you are already the best among your peers in this industry..." "No matter what the result of today''s competition is, I hope you can take further steps in the field of numerical computing in the future..." Chang Haonan stood in front of the stage, neither holding his speech script nor looking at the teleprompter. He just held a microphone in one hand and put his other hand in his pocket, pacing slowly. After a few words of encouragement, he suddenly turned around and returned to the back of the podium, while signaling to the staff below to prepare to turn the pages of the PPT: "Then next, I will officially announce the title of the finals!" The entire venue instantly became silent. Everyone is waiting for new characters to appear on the PPT. "Here, I can reveal in advance that it is a two-phase flow problem." Chang Haonan failed again. The audience, who thought he would tell the topic directly, let out a burst of "ugh~" sounds. It also made the atmosphere in the originally dull conference hall much more relaxed. And just before everyone''s final words had finished, Chang Haonan made a surprise attack: "5, 4, 3..." The sound of counting made everyone nervous again. Fortunately, this time it was not a pass, but it actually counted to 1. As Chang Haonan''s voice fell, the PPT was turned to the next page. "In the production process of plastic products, microporous injection molding technology can reduce material consumption, reduce the weight of injection molded parts, improve injection molding thermodynamics, and shorten the molding process cycle. Therefore, it has received great attention since its advent in the 1980s..." According to the principle of microcellular foam injection molding, the first step of the process is to prepare a uniform mixture before the melt is mixed and accumulated in the screw head. This is a necessary condition before microcellular foam injection. This requires that the screw mixing section must be There are corresponding mixing elements that can change the position of the bubbles from top to bottom, accelerating the diffusion and dissolution of bubbles in the polymer..." "Now let''s set up two polymer melts A and B. The specific properties are shown in Appendix 1 and Appendix 2 respectively. Please design a torsion element installed at the front end of the screw to mix the two substances AB..." Looking at the topic on the PPT, Professor Jameson, who was sitting on the podium, showed a hint of surprise at first, and then turned to joy. Although the background of the question seems a bit unpopular, its essence is nothing more than a two-phase flow mixing problem. Although the traditional finite volume method is not suitable for solving this kind of problem, the latest version of COMSOL happens to use the Lagrangian method of unstructured mesh to solve this problem to a certain extent. As long as the boundary problem is solved, the solution can be solved step by step according to the normal CFD problem. It will definitely not be a problem for Lyles and others who have been specially trained by him. Thinking of this, Jameson even glanced at Chang Haonan behind the podium with a somewhat gloating look. In his opinion, this should be a small trick used by the other party to set the question. Use the boundaries of drastic changes in topology to limit the performance of COMSOL. But his cleverness was mistaken for him. At the same time, Chang Haonan on the stage was also paying attention to Professor Jameson''s reaction from the corner of his eye. After seeing the latter''s expression and eyes, he knew that he was stable this time. The other party didn''t notice the hidden pitfalls in this question at all. By the time the contestants realized something was wrong, it should have been the morning of the third day, approaching the submission deadline. Even if I wanted to go back and use TORCHMultiphysics to remedy the situation, it would be too late... In fact, Herz''s previous guesses were almost accurate. However, Chang Haonan''s methods were much smarter than everyone expected. Combined with excellent confidentiality measures. In the end, such an unsolvable conspiracy was brought to the forefront. (End of chapter) Chapter 997 Have a blast! Chapter 997 Lets have a big fight! Like Professor Jameson on the stage, most of the people in the audience only experienced a brief moment of confusion after seeing the question, and then quickly realized the essence of the problem. "It should be a two-phase flow problem of non-Newtonian fluids?" George asked his two companions in a low voice. "yes." Lyles nodded, then showed a playful expression: "And there are pitfalls hidden in the conditions of this question..." The other two were stunned when they heard this and looked at the conditions on the big screen again. It was Hermia who reacted first: "Gas-liquid two-phase flow?" According to the process conditions given in the question, approximately two-thirds of the process of substance B will be in the gaseous state rather than the liquid state. "oh..." George next to him also smiled knowingly: "It seems that the tournament wants to use these details to cause us trouble..." "Although it''s an inconspicuous place, I''m afraid many people will be tricked." Lyles crossed his legs: "The person who asked this question is very bad..." In his opinion, this should be a small trick used by the Torch Group against them. As long as the participating teams from China are given a little reminder, they can be completely avoided. And if other teams don''t pay attention, it will affect their results. To some extent, it can be regarded as a reasonable use of the host''s advantages. In fact, in numerical calculation software, there is a database for most common fluids. If the calculation conditions you enter are too outrageous, such as liquid water at 1 bar and 1000C, there will definitely be a prompt. But today these two polymer melts are obviously not among the "common" ones. Although problems will still be discovered in the end, the 48-hour game time is not very generous in the first place. If it is delayed again, it is very likely that the problem will not be completely solved. If we also consider the mentality affected by this incident, the potential losses will be even greater. This kind of digging holes in the questions is relatively common in ordinary examinations. However, competitions, especially high-level competitions, are actually rarely encountered - Because it is generally not the focus of investigation. At this time, Hertz, who was next to him, also came over: "Two-phase flow problems should be the most classic CFD application field. Although COMSOL''s advantage in this area is not as great as that of homogeneous turbulence problems, according to our previous tests, the calculation efficiency is also significantly better than that of Torch Group and ANSYS. Taste." "What happens next depends entirely on you..." Although nearly 10 teams that have reached an agreement with COMSOL have entered the finals, there is no doubt that these three players from Stanford University, who have been personally coached by Professor Jameson, are their seed teams. It was also the team that received the most attention before the finals. After the preliminary round, Hertz''s ambitions have expanded a lot. He has even begun to consider whether it is possible for the three Lyles players to continue their form in the finals and take first place again. When the time comes to win the first place in the preliminary round and finals, it will be an excellent promotional material. "Don''t worry." Lyles replied: "They set up several traps in the questions, but they are not difficult to see." If he was still a little unsure before seeing the question, now his mentality has basically stabilized. People are like that sometimes. If the whole process is completely smooth sailing, you will become suspicious. But if there are a few small obstacles that don''t even play a role, it will feel much better. However, this part cannot actually be regarded as Chang Haonan''s calculation. In fact, whether the substance is in a gaseous or liquid state has no impact on his plan. It''s just that polymer melts are not very common, and there are even fewer that can be used for injection molding. So when you pick and choose, there are only a few options left that can be used to solve questions. Others are even more abstract. As for the unexpected mistake that lowered the opponent''s vigilance... it can only be said to be an unintentional move. After the examination questions were read out, the more than 200 contestants naturally left the conference hall immediately and went to their own examination rooms to start answering questions. Judging from their expressions, they are basically eager to try. After all, there is no way that the team that can pass the test and reach the finals is just a random mess. Everyone can basically see that the difficulty of this question is basically at the boundary of their abilities. Just a little hop and you''ll be there. And if you can have an epiphany during the process of answering the questions, it may even be possible to further improve your abilities... The rest of the people in the conference hall started chatting with a relatively relaxed attitude - Almost everyone, at this point in time, feels that they have taken a big advantage. Needless to say, scholars and professors, competitions and conferences will have great benefits for the visibility of the entire industry. In the future, whether it is applying for projects or business cooperation, the difficulty will be greatly reduced. Sponsors, especially those in the chemical industry, were overjoyed after seeing a topic so close to actual production. This means that numerical computing techniques have at least the potential to reduce their costs in the design and production processes. As for the three companies that mainly provide numerical calculation services and tools... COMSOL feels that it has a huge advantage and wins. ANSYS originally specializes in this type of process production issues, and even provides preset models for a variety of chemical equipment in the software. Although the performance is slightly worse, it is lightweight enough and can be used to win. Not to mention the Torch Group, Chang Haonan is ready to enjoy the scene when the results come out... "Dear guests, please stay." Chang Haonan simply packed up his things, then stood up from his seat and said half-jokingly: "Don''t be anxious, we don''t have to take the exam like the contestants..." One sentence caused a burst of good-natured laughter below. After briefly livening up the atmosphere, he continued: "The organizing committee of the conference has arranged a welcome banquet tonight. Please be sure to attend..." If these people were put back now, they would definitely study the issue simultaneously with the players. Although Chang Haonan is confident that his hole is very hidden, the people sitting here are also well-known figures in the field of numerical computing. If you see some clues and find an opportunity to remind the court, it will be troublesome. Therefore, at least they must be locked in the banquet hall tonight. As for tomorrow It will be too late no matter what you do tomorrow... At the same time, the participating students had already taken their seats in front of the computers and began to study the question carefully. The Stanford trio even almost skipped this step Lyles'' ability is indeed extraordinary. He had almost finished the draft when he was just in the corridor. Now sitting in front of the computer, after a little review, he started to give instructions directly: "In the first stage, Hermila was responsible for establishing the physical property models of two substances, A and B, in different states. I handled the geometric model and meshing." "In the second stage, I dealt with the simulation calculation conditions and the setting of fluid physical parameters and boundary conditions. Hermi was responsible for the modeling of the forming screw and barrel, and at the same time prepared several typical torsion elements...actually the model of the stirring paddle. So that we can test it later. "In the third stage, based on the test results of the impeller models with different characteristics, select the best one and optimize it based on it..." Under his command, Hermia quickly clarified her thoughts and began to handle the first task in an orderly manner. "etc" George next to him was stunned for a moment: "What about me?" Lyles glanced at him: "There''s no part of this problem that you''re good at, you''re responsible for handling the paperwork while we move forward." "When the final results are released, I want to see your calculation documentation simultaneously with the project files!" After saying this in one breath, Lyles turned his attention back to the screen in front of him and took a deep breath. Next, he is going to have a big fight! (End of chapter) Chapter 998 Something seems wrong Chapter 998 Something seems to be wrong ?Chang Haonan''s face still has some effect. Therefore, in addition to Heltz and others who had made appointments in advance, most of the on-site guests also attended the dinner organized by him. And due to the rich variety of food and drink, as well as the frequent speeches and toasts given by representatives of different organizers, everyone was more or less drunk at the end. Professor Anthony Jameson is no exception. As a special guest, he was given more champagne than others. It wasn''t until midnight that day that the dinner finally came to an end. On the way back to the room, Jameson happened to meet Chang Haonan who was also about to leave. "Oh...Professor Chang!" If the two of them met on a normal day, they would probably just say hello in batches and then go their separate ways. But today, with the excitement of thinking he had succeeded in making a comeback and the drunkenness, he walked up directly and shook hands with the opponent very enthusiastically. It was also at this time that Jameson suddenly noticed that there was another person standing next to Chang Haonan. And judging from his appearance, he is not a staff member. "I don''t know who this is..." He looked the other person up and down and confirmed that he didn''t recognize him. I didnt see this person at the dinner just now. "oh" Chang Haonan smiled and introduced Jameson: "This is Professor Harold Huang from Ohio State University and a special guest of this conference. He missed the introduction session at the beginning of the dinner due to transportation reasons." Jameson had never even heard of the other party''s name, but when he heard that the other party was also a special guest, he nodded to him for Chang Haonan''s sake. However, he completely ignored the other person''s extended hand, and did not notice Harold''s embarrassed expression due to being ignored. Instead, he looked at Chang Haonan again In fact, Jameson''s heart was somewhat provocative at this time. It''s a bit like "Thirty years to Hedong, thirty years to Hexi, don''t bully the old and poor." It feels like being suppressed by the Torch Group for so many years and finally turning around. Of course, he is a decent guy after all. The more you drink, the more you drink, and you won''t get so drunk that you lose consciousness. Basic sanity can still be maintained. It''s impossible to do something so tasteless as making fun of someone. I just suddenly mentioned the conference itself two days later: "By the way, I forgot to ask at the dinner... I wonder what theme report you are going to give at the meeting?" This question is actually a bit of a thief. Most of the special guest reports have been planned internally. However, including Chang Haonan, there are still several people whose topics have not been made public. So its normal to be asked. But no matter what answer Chang Haonan gives, Jameson can always mention his own topic, then mention the new algorithm he developed, and then mention the results of COMSOL... Thus pretending to be invisible. However, Chang Haonan is experienced in this aspect. Naturally, it is impossible to leave a chance for Jameson. "Oh, it uses the constitutive equation that does not involve diffusion terms to solve the problem of high computational weight involved in numerically solving the viscoelastic constitutive equation using the lattice-centered finite volume method..." After finishing this somewhat awkward and lengthy title, he showed a meaningful smile: "I wonder what Professor Jameson thinks of...this subject?" This answer made Jameson freeze on the spot for several seconds, as if he was ready to perform a set of combos, but was suddenly silenced. Because the lattice-centered finite volume method...is exactly the subject of his own report. "Uh...not bad, not bad..." Professor Jameson subconsciously felt that something was wrong, but at this time he was already a little dizzy, and his brain could not keep up with the speed at all. So I had to say a few casual words of support, and then said goodbye to Chang Haonan, preparing to go back to the room to have a good rest. Time soon arrived at noon on the second day of the finals. In addition to the Stanford trio, other teams have also completed their analysis of the problems one after another and began to enter the problem-solving state. It has to be said that Lyles is extremely outstanding in both personal ability and leadership. Under his command, by ten o''clock that night, Hermia had completed the modeling of several types of typical torsion elements Strictly speaking, the torsion element should be a set, not a stirring paddle, and it also includes a flow channel to accommodate two fluids, which is one of the most difficult points in this simulation. However, in the update to version 2.5, COMSOL has just enhanced its compatibility with the Solidwork modeling software, and has also solved to a certain extent the pain point of the Lagrangian method being difficult to apply to non-structural adaptive meshes. So it''s almost a smooth ride. Lyles himself has a more arduous task, so he still burns midnight oil in front of the computer. Relatively speaking, George, who was only responsible for writing work, became the most leisurely among the three people, so he consciously took on the logistics work of the whole team. "On my way to buy lunch, I overheard a few people from other teams chatting." George put a large plastic bag containing cartons of milk and sandwiches on the table, and said to Lyles while tearing open the package: "As you guessed, a team has already encountered the physical state problem of Substance B." "Ha...I knew it" Lyles swallowed the sandwich in his mouth and sneered: "If you fail to notice the change in the state of matter at the beginning, it will take 12 to 15 hours at the fastest to find the problem. After troubleshooting, you will finally find the problem and then redo it..." He turned his head and looked at the clock on the wall next to him: "There''s definitely not enough time." Looking at the captain who showed a smile, George also nodded: "Indeed, the mentality of the team I met has basically collapsed. They seem to be preparing to submit answers directly after completing the project documents without going back and redoing them..." "This is only the first level..." Lyles threw the empty milk carton into the trash can: "When designing the mixing device later, although the foaming screw was already provided in the question, the competition only provided a screw itself. An additional micro heat exchanger needs to be added between the metering section and the dispersing section to calculate the correct result. Even I was almost fooled by this this morning. "Calculating the time, there should be a second batch of participating teams that will soon be persuaded to withdraw by this heat exchanger..." Obviously, on the other side of his calmness, he also has the extreme confidence of a top student from a prestigious school. Not only can he plan the work progress of his own team, he can even have a rough estimate of the situation of other participating teams. As for whether this kind of estimation has actual use, or is it just a means of showing off skills, or a manifestation of obsessive-compulsive disorder... I''m afraid Lyles himself hasn''t seriously considered it. In any case, the situation of other groups is just a chore after all. So after a brief chat during dinner, the two returned to work. At this moment, Hermia, who had been motionless next to her, suddenly yawned: "Ah~" At the same time, he stretched his legs and slid the computer chair in front of the bag: "Liles, I have started to test the results of the mixed element watershed here. There are a total of 8 preset elements. The number of grids corresponding to each element is about 500,000 to 600,000. The MRF type model is used calculate." As she spoke, she took out the milk and sandwiches from the bag, but instead of tearing open the packages immediately like George and Lyles, she stood up from the chair: "It will probably be finished at six o''clock in the evening. I''m... um... not feeling very well these days. I''ll go up and have a rest first, and then I''ll come back down..." As a special guest of the conference, Professor Anthony Jameson was naturally accommodated in a suite upstairs at the conference venue. As students of each other, and Stanford was not short of money, the three Lyles also chose to live here out of convenience. The advantage is that you can just take the elevator upstairs and go back to your room to sleep. It''s definitely better than lying down and resting in the computer room cubicle. "no problem." Lyles said without looking back. Although the competition time is set to last for 48 consecutive hours, it is impossible for normal people to maintain continuous high-intensity work for such a long period of time, let alone coffee or even drugs. Therefore, the three participating team members must take turns to rest between work. Therefore, how to arrange rest time reasonably has become one of the abilities assessed in the finals. Don''t worry about whether it''s reasonable or not, just say whether it''s close to reality or not, right? On the contrary, Zheng Haonan''s principle is basically that if you participate in my competition, you can still get a ranking. Basically, after graduation, you can seamlessly join a large factory to lead projects. A few hours later Hermia awoke from her sleep. Looking at the time, it was already around 5:30 pm. There was about half an hour left until the results of her calculations were calculated. So she simply washed her face, and without bothering to do too many things, she prepared to go to the computer room to complete the last part of the entire design Export the calculation results, and then optimize again based on the results. If nothing unexpected happens, then this round of optimization is over and you can submit your answer directly. In the elevator, she coincidentally met Jameson who was also about to go downstairs. "Professor, this afternoon..." Hermia was about to say hello when she noticed that the other person''s face was a little haggard: "Did you... just wake up?" Jameson rubbed his still swollen temples and shook his head: "That''s not true, I just drank a little too much yesterday and rested late, so I have a headache..." Naturally, Hermia didn''t know what happened yesterday, and thought it was Jameson who was addicted to work: "Rest late...Are you also staying up late to study that question?" "Ah...no." Jameson shook his head in embarrassment, but he was also embarrassed to admit that he drank a little too much at the dinner, so he avoided the important and ignored the important: "Yesterday, I talked with the organizer, Professor Chang Haonan, about his conference report, which was about...about..." It took him a few seconds to finally remember the content of his latest chat with Chang Haonan: "It''s about the computational complexity of numerically solving viscoelastic constitutive equations..." At this point, Jameson''s voice stopped abruptly. The movements of his hands also stopped. "Calculate what..." Hermia only heard half of it and then stopped talking. She turned around subconsciously. But he saw Jameson''s face was pale, with an extremely horrified expression on his face. Moreover, his whole body was trembling. "professor?" She shouted in concern. But the other party seemed not to hear. In just a few seconds, Jameson''s forehead was already covered with fine sweat My brain was not very good last night and I couldn''t react. But now looking back at Chang Haonan''s theme, he suddenly realized something. To solve a problem, there must first be a problem. Of course he knew the finite volume method at the center of the grid. Or rather, the core of the entire COMSOL 2.5 update is this technology. but High computational weight problems in numerically solving viscoelastic constitutive equations But it''s a little strange. in other words. When he designed the algorithm, he probably overlooked some very important details! And then, an even worse possibility emerged from Jameson''s mind... "Hermia." Professor Jameson took several deep breaths in succession before he managed to stabilize his mentality: "During your competition, have you ever encountered the solution process related to the viscoelastic constitutive equation?" His voice trembled as he spoke. "Of course I have." Hermia nodded almost without thinking: "Actually...the step we are calculating right now is this." "Boom" Hermia''s answer was like a thunderbolt, exploding directly in Jameson''s ears. Immediately afterwards, the latter felt that his vision went dark and he lost his balance... Fortunately, the elevator space was small, so Jameson did not fall directly to the ground, but leaned on the handrail on the side. "professor?" Realizing that something was wrong, Hermia quickly stepped forward to help. At this time, the elevator has also reached the first floor. With a "ding-" sound, the elevator door opened. "Leave me alone...I''m fine..." Jameson refused Hermia''s support and signaled her to leave quickly: "Go quickly... take a look at your calculation results!" "quick!" (End of chapter) Chapter 999 You win, win, win, but in the end you lo Chapter 999: You win, win, win, but in the end you lose everything. ?Jameson had a terrible suspicion in his mind at this time. That is, the algorithm he designed, and of course the COMSOL 2.5 version software developed based on it, has bugs when numerically solving certain types of viscoelastic constitutive equations. This bug should be so obscure that even he himself doesn''t know about it. But Chang Haonan knew. Moreover, I already knew it. If that''s the case, then... The whole game is just one round. A situation that has been set up. In the preliminary round, two questions that were most advantageous to COMSOL and did not involve viscoelastic constitutive equations were selected, allowing the participating teams using COMSOL software to achieve results far beyond expectations. This is equivalent to lowering their vigilance and luring the enemy deeper. The final is the real killer move. Two-phase flow calculation, pure CFD problem. It seems that COMSOL still takes advantage. But as long as that BUG can be triggered, the results of all teams using COMSOL can collapse. It may even be impossible to achieve results at all! Of course, if we want to explain this chain of thinking clearly, it will take at least ten minutes. Therefore, Jameson asked Hermia to see the calculation results without saying anything. If everything is normal, it proves that his worries are unfounded. As for bugs, even if they exist, they can be fixed slowly. And if the result cannot be calculated, or there is something obviously wrong with the result... Then there is no need to worry about BUG for the time being. Just prepare for public opinion and public relations... Professor Jameson didn''t even know how he got out of the elevator. When he came back to his senses, he found himself sitting on the sofa at the front desk of the hotel. He couldn''t think too much and quickly touched his pocket, only to find that he didn''t have his phone with him. So he hurriedly rushed to the front desk, borrowed the landline phone and dialed Heltz''s phone number... At the same time, Hermia also hurriedly returned to the computer room, Although she was still confused, Jameson''s abnormal behavior just now made her understand that the situation should be very serious. Sure enough, when she pushed open the compartment door, she found the other two people sitting in front of Unit 3 with livid faces, as motionless as two statues... "Lemmy?" "Jo?" She called twice tentatively. Hearing Hermia''s voice, Lyles''s body swayed slightly, and then he turned his head stiffly like a robot: "Hermie, I think we''re...in trouble." Hermia, who had already had an ominous premonition, twitched the corner of her mouth and her heart sank: "What exactly happened?" With that said, he walked back to his own Unit 3. On the screen was the calculation she started before she went to take a break. Now, the results have come out as she expected. But not completely. because "Computational divergence?" Hermia also showed a ghostly expression: "How is that possible?" The computer room was eerily quiet for a while. Only the faint squeaking sound of the hard drive occasionally sounded. "Actually...this is our second calculation." George replied in a hoarse voice: "At three o''clock in the afternoon, the calculation you made before you left has already gone wrong." "Later, we adjusted the boundary conditions and starting point and tried again, but the result... was still divergent." Once a problem occurs, it may be caused by accidental factors or simply careless input errors. But if the same problem occurs twice in a row, there are only two possibilities. Either there is something wrong with the method. Either there is something wrong with the tool. but It doesn''t really matter anymore. Because it is already the evening of the second day. There are only 15 hours left to submit your answer. Compared with those teams that discovered problems early and reworked early, they didn''t even have the chance to start over and deliver a semi-finished product. Lyles''s face was horribly ugly Just a few hours ago, he was condescendingly judging other teams in trouble, as if he was not involved. However, when the same situation happened to him, he found no warning. Let alone think of a solution. "Hermie." A few minutes later, Lyles finally came back to his senses and looked at Hermia behind him: "Go to Professor Jameson quickly and see if he has a solution..." Hermia thought about Jameson''s performance just now and felt that the possibility was probably very small. The professor must have just realized something was wrong. It is impossible to think of a solution in an instant. Besides, even if you think about it, you may not have time to change it. George next to him was a little hesitant: "You can follow the rules of the competition..." "Never mind that!" Lyles growled lowly: "Before we solve the problem, we must at least submit a valid result!" "Besides, I''m just asking the professor for ideas. If I don''t bring a storage device, the competition won''t find it..." He used to tend to abide by the rules because he felt that he had great advantages and could get good results even if he abided by the rules. But now that he is at a disadvantage, he has naturally forgotten those things long ago. Hermia hesitated for a moment, then turned around and ran out again... However, the result was pretty much what she had expected. Jameson was silent for a long time when he heard Hermia say that their calculation results were divergent and could not converge no matter how they adjusted the input settings. In the end, he just sighed. As for Heltz next to him, he slumped down on the sofa. In fact, it stands to reason that if there is a bug in something like software, or it is an unpopular bug that no one has reported for half a year, it should not be a big deal at all. But the problem is that in the month between the preliminary rounds and the finals, he created a lot of momentum. Now even the awesomeness has been blown out. The top three guaranteed have also taken out loans. Everyone is waiting to see your dazzling performance. The result was pulled. That''s a pure clown. All previous publicity, all intentional or unintentional belittling of Torch Group, and even all intended orders. They will all turn into boomerangs, piercing their heads one by one. Anyone who has been in the rice circle knows this truth. The most terrifying backlash is called turning from pink to black... No matter how you explain it, it can''t change the fact that COMSOL Multiphysics is embarrassed in public and has been thrown out of the horizon. Every user will think about what happened in this competition before using it. And this is not even the most embarrassing thing - Two days later, the entire industry will know that the bug that COMSOL did not even discover has been solved by Torch Group... It is impossible to eliminate this negative effect within a few years. Considering the development speed of Torch Group and the entire numerical computing industry, in a few years... Fuck you, who still remembers who you are at COMSOL? "Professor, is there really nothing you can do?" asked Hermia, who was still a little unwilling to give up. Jameson closed his eyes in pain and shook his head. After a while, he finally explained: "At present, we can only determine that the problem should be in the process of solving the viscoelastic constitutive equation. After the stability representing elasticity increases to a certain critical value, the numerical solution will produce non-physical oscillations in the area of ??rapid stress change, causing the algorithm to fail. Stable, computing crashes." "But why this happened...it will take about two days to know." Why can we find out in two days? Because Chang Haonan has to give a report in two days... You will naturally know after listening to it. Of course, Jameson didn''t say this. However, for Hermia, the result was already clear Even the reason cannot be found, and the solution is even more fanciful. She didn''t stand still and sat directly on the bed: "Then...then our final results aren''t..." No one answered. Finally, it was Jameson who added this sentence: "Don''t worry...I will help you bear the cost of this trip to China..." This sentence is almost a disguised admission. No choice. Just wait to die. Hermia, who was sitting on the bed, opened her mouth. She really wanted to say that the three of them came to China not for tourism, so what was the use of paying for the travel expenses... But in the end, looking at Jameson and Heltz who were also lost, she swallowed these words back... "knew" Hermia supported the edge of the bed and stood up again unsteadily: "I''ll go tell them about the situation..." (End of chapter) Chapter 1000 Torch Group, the eternal **** (10,000 pe Chapter 1000: Torch Group, Eternal God (10,000 per day, please give me a monthly vote) March 29, 8 pm. Because it was already the day before the official opening of the conference, all special guests, even those not directly related to the competition, had already arrived in China. At this time, a group of people were at the backstage of the competition, checking the scoring of the finals with Chang Haonan - According to the competition rules, the final scores of the finals need to be witnessed by a group of specially invited guests and subject to random inspection. After confirmation, the awards will be announced and awarded at the conference the next day. Unlike the preliminary rounds, which have relatively ample time, for most teams, the finals can only be completed about 6-8 hours in advance if there are no problems throughout the process. As long as the shell is stuck somewhere in the middle, time will appear to be tight. If we have to rework somewhere, we basically need to consider how to grasp the big and let go of the small. Therefore, among the more than 60 participating teams, more than 50 submitted their answers in the last half hour before the deadline. As for the number of early submissions... After inspection, it was found that it was basically due to a breakdown in mentality. Fortunately, the total number of teams participating in the finals is not large, so even if they submit in groups, five hours is still enough to complete most of the scoring work. "Professor Chang, good evening." Harold took the initiative and said hello to Chang Haonan. After some pleasantries, the former suddenly looked around and asked: "Speaking of which...why didn''t you see Professor Jameson today?" As a relatively unknown scholar, among all the special guests, he almost only knew the two people he met yesterday, so it was not surprising to ask about Jameson. "Uh... he said he didn''t feel well, so he wanted to go to bed early, so he didn''t come to participate in the evening activities." Chang Haonan barely suppressed his smile and replied with a regretful tone. Of course, he didn''t lie. Because that''s exactly what Professor Jameson said. However, as the initiator of everything, Chang Haonan knew a little bit about the inside story The other party is not feeling well, and most likely he is feeling anxious and angry... "Uh... then tomorrow''s meeting is indeed more important." Of course, Harold had no idea what was going on and just took it as what it was. I was still thinking that it was no wonder that when I saw Professor Jameson the night before yesterday, he seemed abnormal. While the guests were communicating with each other, Meng Weizheng, the head of the referee team on the other side, also stood up from the computer and strode to Chang Haonan: "Report, all scoring work has been completed!" As the translator conveyed this sentence, the originally noisy computer room suddenly became quiet. "Professor Chang, it''s getting late. I think... don''t whet our appetites and announce the results as soon as possible." said Professor Suhas Patankar from the University of Minnesota. As a master of numerical calculations an era earlier than Anthony Jameson, Patankar can be said to be one of the original pioneers of the entire field. Even now in 2002, his book "Numerical Calculation of Heat Transfer and Fluid Flow" is still the top textbook in the field of mass transfer dynamics. It is only fitting that he should speak on behalf of the special guests. Chang Haonan had no intention of betraying him at this time. What''s more, what''s going to happen next is a masterstroke. "Lao Meng." He gestured to Meng Weizheng. But a trace of hesitation flashed across the latter''s face, and he whispered to Chang Haonan in Chinese: "Mr. Chang, the results of several groups are obviously abnormal. I''m worried...that someone is deliberately causing trouble..." It has to be said that Meng Wei is really full of vigilance. It''s just that I don''t know how to look at the occasion. Data anomaly? Abnormal is normal, right? If everything were to be normal, it would be abnormal... "Do as I say!" Chang Haonan said in a deep voice. In this three-acre area of ??Torch Group, his prestige is still very effective. Although Meng Weizheng was still a little worried, he still followed Chang Haonan''s instructions and asked the staff to project the results of the game. For a moment, everyone turned their heads and looked at the curtain on the side of the room. The most eye-catching thing is naturally the first place. "JingHang University...103.7 points!" It must be said that the English names of some schools are purely for setting. Just like Beijing Hang University. If foreigners don''t understand Chinese, they will have no idea what "JingHang" means. If you understand... Then there is no need for an English name. Fortunately, because of Chang Haonan, JUAA''s name is somewhat well-known in the academic world, so it won''t really be a black eye. So it was quickly recognized. "I have read the papers published by Professor Chang. This should be the school where he works." "Then ranking first is reasonable..." "Indeed, if you are still Professor Chang''s student, then..." "Probably not. I remember Professor Chang specifically said before that in order to avoid suspicion, his research group did not sign up for this competition." In the discussion among everyone, the list on the curtain slowly slid down, and the subsequent rankings gradually appeared. Second place, National Institute of Aeronautics and Astronautics. Third place, MIT. The scores for both schools were exactly the same, both 100.2. Its just that the order of submission differs by less than 10 minutes. Basically the difference is just luck. "ISAE...is it the one in France?" someone asked. "Of course." The answerer was a French professor, with a smile in his voice. Universities in continental Europe are generally not known for their comprehensive rankings, but that doesn''t mean they don''t have strength. Fourth place, Samara State Aerospace University, 99.8 points. Fifth place, Cranfield University, 99.4 points. Sixth place, Bingcheng University of Technology, 98.9 points. The ones at the top of the list, except for a few Chinese names that occasionally flashed by, are basically schools that have already enjoyed a great reputation in the world. Therefore, everyone is not surprised. Only occasionally did the crowd burst into applause when the school where one taught appeared. No. 12, Ohio State University, 85.4 points "oh" Suddenly seeing Professor Harold from his school, he subconsciously covered his mouth, but still let out a exclamation. Not many people present knew him, but when they saw this scene, they naturally understood that this was his school, so they gave him a polite round of applause. The atmosphere seemed very harmonious for a time. until. "etc!" When the list scrolled down to number 20, a voice suddenly sounded: "So far, I haven''t seen Stanford University, which is ranked first in the preliminary round, and the Minnesota Twins, which is ranked third?" In one sentence, it was almost earth-shattering. Meng Wei, who was not far away, trembled when he heard these words - This is what he just said about abnormal grades. "I don''t think I saw it either..." "really" "But this is already after 20th place, with only 74.2 points... It is impossible for the two schools ranked in the top three in the preliminary round to perform abnormally together in the finals, right?" The originally joyful atmosphere suddenly became a little more subtle. Since MIT ranks third, and there are two other universities from the United States in the top ten, it is absolutely impossible that the organizers are targeting the United States. And with so many schools experiencing major decline in performance, it is obviously unlikely to be due to cheating in the preliminary exams. However, who could be the special guest? Someone soon saw the clues: "It seems...none of the schools that used COMSOL to submit engineering documents in the preliminary rounds were seen?" Now, the mystery is undoubtedly solved. More than a dozen sharp eyes suddenly looked at Chang Haonan. Even Professor Harold was a little hesitant at this time. "Professor Chang." Finally, the respected Patanka stood up: "I think there are obvious abnormalities in the final results." The meaning is obvious - You are a business owner, take advantage of the host country, play a little side game, and promote your own products. Everyone can understand this and won''t say anything. But it would be too ugly to target competitors without even acting. For Chang Haonan, who is doing a full set of acting, he naturally has to accompany them to continue acting: "I agree with Professor Patankar." He turned his hand away and glanced over the group of people without timidity: "So, it is recommended to investigate strictly!" This reaction with a dignified face and awe-inspiring righteousness was obviously beyond the expectations of others. Even Patanka was a little confused. After being stunned for a while, he said: "Then... after all the rankings are released, we will check the result documents submitted by those schools. You should have no objections, right?" Chang Haonan said in his heart that I have no objection, I am just waiting for your words. check! Check it quickly! I can''t let you out without finding out the results... Of course, on the surface he still nodded with a serious look and replied in a decisive tone: "Of course I have no objection." "We must figure out why there is such a big difference in results between the preliminary rounds and the finals!" After such a small disturbance, 40 people finally came to the back of the curtain. Starting from the 43rd place, the results column is not marked with numbers. But N/A. No valid scores. The two schools just discussed appear in this list. "No results?" This result was completely beyond the expectations of everyone except Chang Haonan. What they originally thought was that the organizers would give a super low score to the participating groups using COMSOL. But having no results would be a bit outrageous. Either it was not submitted at all, or there was a fatal problem in some crucial step. Otherwise, there will be some distinction between high and low. At this time, everyone was a little hesitant about the judgment just made. Even if Chang Haonan really wanted to cause trouble, he was not a fool. How is it possible to use this method to see the problem at a glance? For a moment, the entire computer room fell into silence. In the end, Chang Haonan, who really couldn''t hold himself back, took the initiative to speak: "Everyone, time is tight, let''s start checking!" After finishing speaking, without waiting for anyone else to react, he turned back to look at Meng Weizheng: "Select the answer results submitted by all teams after the 43rd place!" "yes!" Seeing that Chang Haonan was still able to issue instructions in an orderly manner at this time, the latter finally realized that his boss might have had a plan. Therefore, without any hesitation this time, I opened the first project document directly as instructed. However, this one is really not COMSOL. It''s Torch Group''s software. It only took less than 3 minutes for a group of big guys to see the problem - I got the state of matter wrong at first, and then made a lot of stupid mistakes during the correction process. In the end, my mentality probably exploded, and I submitted an incomplete result one day ahead of schedule. Because I submitted it early, I ranked first among N/A. Immediately afterwards, came the second portion. Or Torch Groups software This is a bit embarrassing. The situation is similar to the first one. It was only half done and then handed over as a semi-finished product. It wasn''t until the fourth one that I finally had a file with the extension .cmph. After opening it, even the painting style is different from the previous ones. The file content looks very complete at first glance, and even tests several different modeling... "How could this be..." Some people blurted out subconsciously, wondering how it was possible that there was no achievement. But halfway through the words, I got stuck in my throat. Because everyone noticed. Although the idea of ????solving the problem is very reasonable, the programming and calculation method selection are not too problematic. But the most important thing is missing - result. Not only is there no end result. There are not even results from intermediate tests of the modeling. The numerical calculation competition is not a college entrance examination, and there are no steps. So there is no result, the grade is N/A, which is very reasonable. "But why..." Harold''s brain was already a little burned: "Why don''t they figure it out?" He has no doubt that with the quality of this answer, as long as he gets relatively accurate results, even if not all of them, he should be able to get a good ranking. "Look at the back first." Patanka waved his hand to stop Harold from continuing. At this time, his eyes had gradually turned from suspicion to curiosity. The latter one is Stanford University, which everyone is most concerned about. Program loading Everyone held their breath almost subconsciously. After a minute that seemed as long as a year, the project file was opened. The situation is almost the same as the previous group. Their ideas are clearer and their content is more complete. But again, no result. The third, fourth, fifth... Gradually, someone began to realize something was wrong. It is impossible for the submitted answers to be dropped. Therefore, if one or two calculations using COMSOL fail to produce results, they can still be regarded as accidental. But all the answers submitted using COMSOL have no results, while others in Torch Group and ANSYS have everything going fine... The problem obviously lies with the computing tools. Professor Patankar, who started his career in mass transfer kinetics, did not talk nonsense and directly asked the staff to cut to the running log. Even if they are special guests, few people can directly analyze log files with the naked eye like Chang Haonan. But Patankar is indeed one of them. He directly saw the essence through the phenomenon: "That is to say...COMSOLM Multiphysics software, in the process of calculating the viscoelastic constitutive equation...at least the specific viscoelastic constitutive equation...there will be abnormal numerical oscillations, which will eventually cause the results to diverge!" He turned back and looked at Chang Haonan. Only this time, it was in a questioning and confirming tone. If this is the case, then the applicability of COMSOL in two-phase flow, and even in the entire chemical and energy fields, will be a big question mark. At this time, Chang Haonan could no longer control his expression. He pinched his thigh a few times before barely holding back his laughter, and put on a shocked face: "It looks like... it should be like this." "But...this...if this is a bug, it should have been discovered during the internal testing stage, right?" To be fair, his acting skills are not very good. But at this moment, everyone is still in the initial shock, so there hasn''t been any loopholes yet. "and" Chang Haonan adjusted his mentality and continued to perform: "And this kind of problem...can''t it be solved with a constitutive equation that does not involve diffusion terms?" "Is it possible that COMSOL...hasn''t done any research in this area?" "?" "?" Everyone felt like something was wrong This is the technical roadmap of COMSOL. Why do you, the Torch Group, seem to know more about it than its owner? (End of chapter) Chapter 1001 Promote hardware development with softwa Chapter 1001 Promoting hardware development with software advantages Because the facts were too clear, the little hiccup during the results quickly subsided. However, the aftertaste of this episode will reverberate for a long time... The next day was the official opening of the conference. Since the number of participants in this conference far exceeded everyone''s expectations, the double-layered conference hall that was booked from the beginning could not be fully accommodated. So much so that it is necessary to arrange some "less important" people to other rooms in the same building, and then watch the meeting through the closed-circuit television system - Be there, but not quite there. Later, after the Beijing Foreign Liaison Office joined the planning work, it even offered to help coordinate a gymnasium as the main venue. However, due to the strong protests from Zhu Yadan and other security comrades, this plan fell through. As the initiator, main sponsor and special guest of the entire event, Chang Haonan needs to sit in the first three separate rows with more than 20 other important figures. Or strictly speaking, the middle of the first row. And as an academic conference, you can''t set up a three-step, one-post, five-step, one-post peripheral inspection. So the more people there are in the central venue, the greater the pressure for them. Now these hundreds of numbers are still within control. If there are really thousands or even thousands of people at the same venue, then we will have to apply for additional measures from above... In short, the entire plan remained unchanged in the end. However, this also brought an unexpected benefit. That is, the distance between people has been shortened on a physical level... "Professor Jameson, good morning!" Chang Haonan found Anthony Jameson among the crowd with little effort. The latter was wearing a peaked cap with the brim lowered deliberately. He was not sitting in his seat, but was standing against the wall. It seems that he doesn''t want to be noticed too early. But with Chang Haonan''s specially raised voice, the eyes of everyone around him were attracted... "Uh...Professor Chang, good morning." When Jameson saw this, he knew he couldn''t hide anymore, so he had to step forward and shook hands with Chang Haonan. Compared with his high-spirited appearance a few days ago, his face looked a little haggard at this time, and even his hair seemed to be getting whiter... "Is your body recovering well?" Chang Haonan''s expression of concern showed no sign of hypocrisy, and his tone was also full of sincerity - It was specially rehearsed last night. If this scene were seen by someone who didn''t know it, they would sigh with emotion like "the inheritance of two eras". But Jameson''s inner pain is only known to him... "It''s okay...it''s okay..." Jameson''s body doesn''t really have much to recover from. But the mental trauma is hard to say. "The opening ceremony is about to start. Let''s go to the special guest seats." Chang Haonan enthusiastically dragged Jameson towards the center of the venue. As he walked, he said: "I specially asked the conference team to arrange a seat in the middle of the first row for you..." In fact, after Hertz learned that the final result was going to collapse, he immediately bought a ticket and flew back to the United States to prepare for the funeral arrangements... Uh... hindsight. Even Jameson himself briefly thought of running away from the meeting due to illness. This is why he claimed to be ill and chose not to participate in the event last night. However, after a night of fighting between heaven and man, he finally gave up on this idea. It''s such a shame. The attendees are all top practitioners, and they all live in concentrated places. One pass to ten, ten to a hundred. By the end of the meeting at the latest, everyone will know exactly what happened. In this case, let alone claiming to be sick. Even if you are really sick and unable to attend, others will see it as a complete evasion of responsibility. From now on, I no longer need to hang out in academic circles. On the contrary, if faced with reality, this matter is nothing more than a research flaw. At most, it''s just a marketing failure, which is very embarrassing. But who among those engaged in research has not been embarrassed? As for commercializing imperfect technology... That was a wrong decision made by COMSOL, and it had nothing to do with Jameson himself. It''s amazing that he returned the funds given by the other party... However, psychological construction belongs to psychological construction. When you actually sit at the venue, it''s a completely different story. A casual glance from anyone next to him would make Jameson feel something strange in his eyes. And any two people discussing in a low voice together will make him guess whether they are making up a discussion about themselves... All in all, it was literally on pins and needles. So much so, that when the opening ceremony finally got to the point where the competition results were announced, Jameson even felt a little relaxed... Anyway, if you extend your head, it''s the same as shrinking your head. Then why not make this knife come faster... As the athletes'' march played, the curtain in front of the conference hall began to release detailed information about the winning teams one by one according to their rankings. As per general practice, the top three will receive trophies, certificates and medals, while the fourth to eighth will receive only one certificate. Considering that everyone is a decent person, we did not release the results and rankings of all the teams on site like last night. Of course, it''s just not available on site. Similar to the situation in the preliminary round, all competition results can be seen on the website, including the engineering documents submitted by each participating team. For a small and small circle like numerical computing, the speed at which information is disseminated through the Internet is not even as fast as word of mouth... Although only a dozen special guests were present last night to witness the release of results and the subsequent spot checks on the results. But in just one night, this matter was no longer a secret... Of course, there are always people who are not very well informed. "Speaking of which, how come Stanford University, which ranked first in the preliminary rounds, didn''t even make it into the top eight in the finals?" An attendee dressed as a student asked quietly to his companion next to him. "you do not know?" The latter showed a somewhat surprised expression: "Not only did they not make the top 8, Stanford had no results at all in the end..." "ah?" The questioner looked shocked: "How...how could this happen?" Stanford has always been at the top of the national rankings in the field of numerical computing, and with its dazzling preliminary results, many people regard it as the favorite for the top three. "Then I''m not sure...but numerical calculations require luck and experience. Anything can happen..." The person being asked was obviously not a well-rounded person and did not know the whole story. Fortunately, at this time, another person next to him also intervened: "I heard when I was having dinner this morning that not only Stanford, but also all the groups that used COMSOL to do calculations failed to achieve results in this final... It seems that the two-phase flow calculation will trigger a certain BUG in their software, causing the calculation to fail at all. No results "Who are you" "Oh, I''m just a little person, you probably haven''t heard of it..." "oh" The other two didn''t seem to take it too seriously. As a result, the other party changed the subject: "But the big boss of our laboratory is Suhas Patankar..." "oh?" With such a relationship, the credibility of the statement just now is suddenly different. "Two-phase flow is a very important part of CFD calculations. If there are serious bugs in this aspect, then the actual stability of COMSOL... I''m afraid it''s not very optimistic..." "But the preliminary round..." "The questions in the preliminary rounds were simple, and they were lucky enough to pick the part they were best at. However, problems were exposed in the finals..." Similar conversations are taking place in many places at the same time inside and outside the venue. Even the awards ceremony going on on the stage seemed a bit bleak in comparison Its just an award, not an award to yourself. Why is eating melon so important? Moreover, after an unknown number of rounds of transmission, the content of the message had become obviously out of shape. In fact, the calculation vulnerability of COMSOL is only likely to be triggered under certain circumstances with high calculation weight. Otherwise, Chang Haonan wouldn''t have to go to great lengths to set up such a game, and even "customized" a question for them. But just one night later, the version everyone heard has become "COMSOL cannot do two-phase flow calculations." This is something that even Chang Haonan, the initiator, did not expect... anyway. At least in the foreseeable future, COMSOL has completely lost its qualifications to serve on the table... Most people didn''t even notice when the awards ceremony ended. It wasn''t until Chang Haonan began to announce Torch Group''s new plan for the next five years that everyone''s attention was drawn back to the stage. After COMSOL was actually eliminated, considering that ANSYS did not intend to challenge the Torch Group in a large field, but chose to focus on the chemical application, then for a long time in the future, The entire numerical calculation will return to the state of one company between 1997 and 2000. For users, this may not be a good thing. Therefore, everyone is also paying attention to what actions the Torch Group will make later. "First of all, TORCMultiphysics will launch a new version 2.0, and convert the past 1.0 professional version into an educational version, permanently providing unlimited free trials to student groups around the world." As soon as Chang Haonan came up, he threw out a king bomb. Of course, TORCHMultiphysics had an educational version in the past, but it was based on the public beta version of that year. The functions were very imperfect and the interface UI was basically at the level of 1998. The user experience was extremely poor. It is precisely this problem that allows COMSOL to retain a considerable part of the market among research institutions and universities. And now the 1.0 professional version has been converted to the educational version, which is equivalent to directly blocking the way for latecomers to learn COMSOL. Of course, the educational version is literally for educational purposes only. If you want to use software to publish research results, you still have to buy or rent a genuine version. On the other hand, this also means that the improvements in version 2.0 must be obvious enough. Otherwise, users who have spent money to use version 1.0 for several years may not agree. And this is exactly what Chang Haonan is going to say next: The upgrade of version 2.0 focuses on the introduction of a new conservation level set method for interfaces with drastic changes in topology, including multi-phase interface simulation and topology optimization problems, as well as the introduction of a new conservation level set method for increasingly refined aerodynamic design requirements. A new, more accurate turbulence model that can more stably describe the movement of fluid microclusters under high flow rates..." "I will elaborate on these two specific technical issues in my report later..." The release of version TORCH Multiphysics 2.0 was something that was announced long before the conference. However, at that time, COMSOL Multiphysics version 2.5 was in the limelight, and everyone generally believed that this would be a frontal expansion caused by a comet hitting the earth. Unexpectedly, it ended up being a unilateral sweep of the battlefield by the Torch Group. Didnt you see that they also specifically mentioned the upgrade for the two-phase flow problem... Completely whipped corpse. On the stage, Chang Haonan''s speech was still not over. "In the past few years, we have also received a lot of feedback from users, and the issues focus on the compatibility of 3D models and meshing. To this end, Torch Group has reached an agreement with Dassault Systmes and Kompas. Jointly promote seamless connectivity between the fields of CAD modeling and numerical computing..." "In addition, three years ago, Torch Group teamed up with Sugon Group to launch the Sugon 1000T supercomputer and server cluster that are more suitable for TORCH Multiphysics software at the hardware level, and achieved a pretty good response." "However, since the computing power of Sugon Computer itself was relatively average at the time, the advantage of this combination was mainly in cost-effectiveness rather than performance." But with the development of the performance of Sugon series supercomputer, we will also continue this business model of hardware adaptation software, and plan to launch the specially optimized Sugon 3000T within this year, with the computing efficiency increased by one-third compared to Sugon 3000, and The Dawn Edition of TORCH Multiphysics comes with richer functions than the professional version..." When his speech ended, the entire audience burst into thunderous applause. As the final winner of this round of competition, Chang Haonan did not mention anything that worried everyone the most, such as price increases or new payment models. Rather, the further development of numerical simulation techniques is discussed almost entirely. Many users have already taken out their notebooks and written down the name Shuguang Group, preparing to investigate the specific situation when they return. As for the representatives of Shuguang Group who were sitting at the special sponsors seat, and the representatives of the Ministry of Science and Technology who were sitting at the special guests seat, they couldnt hold back their smiles On the surface, this is just a collaboration between two companies. But in fact, as the revenue of supercomputing and server businesses continues to increase, Sugon Group can continue to feed back almost the entire upstream on the basis of solving its own development problems. Especially the semiconductor manufacturing industry, which has been almost nipped in the bud since the 1980s. Although it is still in the process of purchasing foreign equipment and raw materials for simple OEM, in any case, the entire chain from research and development to commercialization has been rebuilt. This is almost a breakthrough from 0 to 1! (End of chapter) Chapter 1002 Photographed an aircraft carrier? Chapter 1002 An aircraft carrier was photographed? With Chang Haonans announcement on the stage, the entire Numerical Algorithm and Computational Science Conference reached its climax. As for the reporting session that will last for a day and a half... On the contrary, the attention is not that high. Nothing else, so professional. About half of the actual participants of this conference are from the enterprise side, and one-third of them are not professional and technical personnel. Since Chang Haonan intends to build the conference in the direction of "discipline forward-looking", the content of the report is mostly theoretical. For those who can understand, it is certainly rewarding. But let alone the media and companies, even researchers in the field of numerical computing, if they are not specialized in the direction of the report topic, are likely to be confused. The only topical thing was probably that Chang Haonan, who was the first to give a report, had to fill in the gaps for Professor Jameson, who was the second to give a report - From a theoretical level, the former demonstrated the reasons why the finite volume method results in oscillations and even calculation divergence when faced with high calculation weight problems, and proposed a feasible solution. The only problem is that this solution first requires solving the corresponding constitutive equations. There is no universal format for this equation, and it can only be analyzed on a case-by-case basis. As for this process of "finding equations", excluding the unfavorable method of making your own wheels and brute force cracking, the most suitable calculation tool is... Version 2.0 of TORC Multiphysics. It''s already a murderous and heart-wrenching level. Professor Jameson, who came on stage later, almost finished the whole lecture without hesitation. He originally planned to take advantage of COMSOL''s victory in the competition and promote the FVM computing system he has studied throughout his life to the entire industry and all fields. result Promotion, probably can still be promoted. However, it may not be promoted by him... As for Professor Harold Huang, although his report on the application of compact high-precision formats did not cause huge waves like the first two, the setbacks of COMSOL made the business community re-examine the rationality of its past technical routes. Therefore, he finally felt proud. Although in the academic circle it is still difficult to turn around after offending someone. But at least it has re-entered the vision of many funders. For Harold, who had almost reached a dead end before, this was enough. And the entire conference came to an end with the vast majority of people enjoying themselves... For Chang Haonan, the previous conference was an interlude, and what happened after the conference was the main story. A week later. Beijing, Tanzhou Measurement and Control Station. Including Chang Haonan, Lin Senming, Luan Wenjie and others, almost all management and technical personnel related to Ocean One gathered here. In fact, this satellite, which had gone through many hardships and finally achieved success, had been launched as early as the end of March when Chang Haonan was still busy in the numerical calculation competition. According to the plan at the beginning of the project many years ago, Haiyang-1 will be carried on the same rocket as the Fengyun-1D weather satellite. After about half a month of orbit adjustment, it will finally enter working condition. However, due to many changes in the research and development direction midway, especially after the addition of optical/radar sea surveillance test missions, the size of the entire satellite increased dramatically. So much so that the originally planned satellite platform was unable to bear the full load. Fortunately, the Dongfanghong IV (5-ton class) launched on this timeline was launched earlier, and the research and development speed was also faster. It was rushed and slowed down all the way. At least it provided a full-state engineering star for the Ocean One project. By the way, it is also regarded as a platform test. Only then did a bunch of valuable precious equipment need to be loaded up. But the satellite problem was solved, and another trouble followed. Ocean One needs to work in a sun-synchronous (SSO) orbit. In the past, China usually launched satellites in SSO orbits using the Long March 4 rocket at the Jinyang Satellite Launch Center. But the SSO carrying capacity of Long March 4B is only a meager 2.5 tons. Not enough. Therefore, we had to temporarily change the plan to use Long March 3B for launch in Yuecheng. The theoretical SSO transport capacity of more than 7 tons is definitely more than enough. However, theory is theory. Changsanyi has not carried out a solar orbit launch mission before, so it is also a first time. In short, one move affects the whole body. Almost everyone who can catch up has caught up. After a series of adjustments, the launch time was limited to a narrow window in the last few days of March. As a result, Chang Haonan himself will definitely not be able to witness the launch process with his own eyes. Fortunately, there is still a cycle in between from launch to return and then to work. Chang Haonan is not a satellite designer, he is only responsible for two sets of software systems: satellite and ground. So, as long as he can be there when the satellite comes into operation for the first time. That is now. "Director Luan, according to plan, the satellite has officially entered working status at 3:45 this morning, and the first batch of remote sensing photos will be sent back soon." The speaker was Zhang Weiyong, the chief designer of the entire Ocean 1 satellite project. "Will the first batch of photos... definitely pass the screening?" Luan Wenjie asked, turning his gaze to Chang Haonan. Since the content captured by Haiyang-1 is highly sensitive, it cannot send the imaging results to nearby receiving stations around the world like ordinary remote sensing satellites, and then the receiving stations transmit them to the Beijing control center through ground transmission means. Therefore, the communication window is much shorter. . According to the satellite-borne screening algorithm, if the photo does not capture the content of interest on the ground, it will not occupy the precious space-to-ground link to send it back. "This... still depends on luck." Chang Haonan explained: "Aircraft carriers are no better than merchant ships. They rarely follow fixed routes except for ports and straits. A single Haiyang-1 satellite can revisit the same location in the shortest period of 3-5 days. If you are unlucky, it will take half a day in a row. Its normal to not be able to find the target for a month or more. "However, before each photo is sent back, the satellite will first send out an inquiry signal. The ground can choose to only accept information that has been preliminarily screened by the satellite, or choose not to screen and accept all information." The reason for this design is, on the one hand, to make sure - If there is a problem with the identification algorithm, at least this satellite can be used as an ordinary ocean remote sensing satellite and will not become scrap metal. On the other hand, it is also considered that this satellite still has to undertake some scientific research tasks after all. Luan Wenjie naturally understood the meaning of these words: "So... what is going to be tested soon is the state of accepting all without screening?" "That''s right." Chang Haonan gave an affirmative answer: "After all, the satellite has just entered working status. The focus is still on testing the basic functions of the equipment on it. As for whether the algorithm level is effective... this may need to wait for a while to try our luck." Cant we go and take pictures of ports, like Yokosuka or Norfolk? A naval leader next to him asked: "These are places where aircraft carriers are almost permanently stationed." "And I remember that during the previous meeting, Comrade Haonan, you also demonstrated that the algorithm can identify the special outline of the aircraft carrier under relatively complex background conditions." "Photographing the port...of course you can" Chang Haonan hesitated for a moment, then nodded: "But it would be best if it can be similar to our expected use situation, which is to catch a target on the high seas. If we take pictures of ports, we will lose the meaning of our ocean surveillance system..." "That''s true..." The other party obviously recognized this explanation. And while a few people were chatting back and forth, time finally came to the first communication window of the plan. "Report the satellite data situation!" Zhang Weiyong walked to the podium and gave instructions in a deep voice. Soon, a voice came from the hall of the measurement and control center: "The self-test of the onboard equipment and programs is normal, and the data is ready to be sent back!" What follows is a few seconds of silence. As Chang Haonan said, this is the first time the satellite reports data. It probably takes about 10 seconds. But this time, the silence seemed to last a little longer. "Report!" There was a rare hesitation in the voice of the on-site staff: "The satellite report is that... there are currently 77,920 kilobytes of data streamed." At this point, he even swallowed his saliva before continuing: "There are 16,540 kilobytes of data stream... valid." "???" "efficient?" Chang Haonan, who had just been inoculating Luan Wenjie, said that he might not be able to take pictures of effective targets for half a month, and he couldn''t stand it. Judging from the results, it seemed that he had been slapped in the face. But he didn''t seem to be beaten. The few people nearby were also in a daze because of this unprepared situation: "Effective means it should mean..." Luan Wenjie walked to the podium and looked at the display screen in the distance showing the words 16540 kilobytes/77920 kilobytes: "You mean...we really photographed an aircraft carrier?" (End of chapter) Chapter 1003 Kitty Hawks whereabouts Chapter 1003 The whereabouts of the Kitty Hawk This situation was completely unexpected for everyone here. Several leaders from the Navy and the General Armament Department looked at each other, and then almost all looked at the people responsible for the research and development of Ocean One. There was shock, confusion, questions and a little bit of doubt in his expression. The interpretation is probably - Isn''t this really what you arranged in advance? "Ahem" In the end, Chang Haonan was the first to react, cleared his throat, and explained: "Technically speaking, it can only be said that there is an information flow in the remote sensing results that triggers the program''s judgment mechanism." "In order to ensure that there are no false alarms, we specially lowered the threshold of the program before launch, so... it may also be a false alarm." After all, satellites are just a means of obtaining information. Ultimately, it is up to people to truly screen information and make judgments. Therefore, for satellite terminals, it is definitely better to have excess than shortage. Only content that is 100% certain to contain no important information will be excluded, and as long as there is a 1% possibility of suspicion, it will be retained. This is what Chang Haonan just said. Of course, having said that, the main reason why I say this is to be on the safe side. With the algorithm he developed, even if the threshold is lowered, the accuracy is unlikely to be so low. Therefore, not to mention the other people, even Chang Haonan himself was somewhat looking forward to it. But amid the anticipation, there are also some worries. Worry about the failure of expectations and the ensuing loss. But whatever. The results always have to be seen. So, the group of people who could no longer sit still stood up and quickly came to the big screen in the measurement and control center. "Although the test plan is to have the satellite transmit back complete data, since we caught up today, how about testing the algorithm developed by Comrade Haonan in advance?" Luan Wenjie glanced at Chang Haonan and Lin Senming next to him. Strictly speaking, today is to test the basic functions of the satellite. In fact, it doesn''t matter what is sent back, as long as the process is completed. So, the answer is naturally yes. Chang Haonan nodded and signaled to a staff member next to him to choose to send back only that part of the filtered information. 16540 kilobytes, which is actually a little more than 16MB. The upper limit of the onboard storage capacity of Ocean 1 is 80MB, which means that about one-fifth of the "useful" data was captured. For computers on the ground, 16MB is certainly a small amount of data worth mentioning. However, it will take a long time for the sky-to-ground link to transmit this data. And if all the nearly 80MB content just now is transmitted back, even one transmission window is not enough. This is why a round of data screening needs to be done in advance on the satellite side. As a program that is not designed for the open market, designers naturally cannot put too much effort into those fancy UIs. Therefore, there is no transfer progress bar like Windows to visually show how much time is left. The atmosphere in the measurement and control center hall was a little depressing for a while. So much so that the air seemed to freeze. "Report!" When everyone almost lost the concept of time, a technician behind the console suddenly stood up and said loudly: "Data transfer completed, visualization processing is in progress!" With just one sentence, the restlessness in everyone''s hearts disappeared in an instant. Several officers from the navy even stood up subconsciously. Data processing is much faster in comparison. After all, it''s only 16MB. A few minutes of work. "Quick, put the image on the big screen!" Even Chang Haonan, who had always been calm, had a slightly distorted voice at this time. After some operations, a pair of... or strictly speaking, a set of photos appeared on the big screen of the measurement and control center. When a remote sensing satellite needs to take pictures of a wide area, it is of course impossible to turn it on all the time like a video recorder. Instead, it performs multiple imaging in divided areas, transmits the data back to the ground, and then stitches it together. The final effect may not be as good as one shot, but the purpose of satellite remote sensing is not to take artistic photos, so in most cases it is enough. In an instant, everyone in the hall, except those who had work at hand and couldn''t put it down, focused their attention on the satellite image. However, even after one round of screening, the amount of information contained in the 16MB grayscale photos is still considerable. What everyone saw was still only a gray sea. There was almost nothing to focus the eyes on. "It seems...don''t see anything?" Someone asked in a less confident voice. "Zoom in." Chang Haonan took a deep breath and ordered in a deep voice. Although the screen size of the measurement and control center is large, its resolution is actually average. Tiny information on a large-size image can easily appear as several discontinuous pixels. Sure enough, after zooming in, as the focus position of the image continued to change, Chang Haonan soon discovered a long light-colored trace at a seam where the two pictures were spliced. "stop!" He quickly raised his hand and pointed to a location on the big screen: "Look here!" "It seems... it''s a flight track?" A Navy leader quickly speculated. The wake generated by the high-speed navigation of large ships may be pulled out thousands of meters or even tens of kilometers away. It is an excellent detection method for satellites and submarines. After all, as long as you follow the wake, you will find the rightful owner sooner or later. "Keep zooming in!" Chang Haonan suppressed his excitement and tried to keep the tone of instructions calm. Sure enough, within a few minutes this time, everyone saw a blurry bright white shadow. "It''s a ship..." Someone wanted to judge the target model based on the visual effects, but as soon as they started talking, the voice stopped abruptly: "Boat?" This area is at the seam of the two frames. The angle is awkward. Moreover, it has been spliced ??in the post-production process. The imaging effect is mediocre. In addition, the resolution of the large screen is very low, which makes the outline of the shadow look...a bit abstract. . Even if it is said to be a ship, it is not entirely identifiable by its appearance. But according to common sense, a thing sailing at high speed on the sea can only be a boat. As for what kind of ship it is... That''s really not easy to analyze. "Comrade Haonan." After watching the big screen closely for a long time with no results, the navy leader put on his glasses again and came to Chang Haonan''s side: "Do you think... what is the probability that this thing will be the target of our interest?" Chang Haonan frowned slightly: "Theoretically, the spaceborne screening program can judge the attributes of the target through some features that are difficult for the human eye to identify. In other words, the outline that we think is abstract may not necessarily be abstract in its view." "But what the probability is...I can''t say." "Um" The other person lowered his head, pacing back and forth while thinking. After a while, he stopped again: "Where is this sea area located?" Soon, a technician reported the coordinates. As a naval general, he could decipher the approximate location of the coordinates almost instantly: "East of the Philippines, north of the Palau Islands..." Then, he turned to look at another naval officer behind him: "Staff Zhu, go check and see if there is any public information about which aircraft carrier is operating near this sea area." When not performing combat missions, the action routes and schedules of aircraft carriers, at least US military aircraft carriers, are not completely confidential and can even be easily checked from public websites. Of course, the specific coordinates at a certain moment can only be known through reconnaissance means such as ocean surveillance satellites or long-range reconnaissance aircraft. The officer known as Staff Officer Zhu moved quickly. In less than half an hour, we returned to the measurement and control hall from the outside. "Reporting to the chief, during the time when the satellite was photographed, the USS Kitty Hawk aircraft carrier had just left Manila and was on its way back to China for inspection and maintenance." "Based on the analysis of the sailing route and sailing direction, it is very likely that what we photographed was it!" (End of chapter) Chapter 1004 satellite gaze reconnaissance Chapter 1004 Satellite Staring Reconnaissance Kitty Hawk? Upon hearing this conclusion, the eyes of several naval officers in front of the big screen lit up almost at the same time. The expressions on his face are even more wonderful. In fact, just now, everyone had some speculation about the nature of this goal. Just because they were worried that the joy would be in vain, no one dared to jump to conclusions. But now, with the news that happened to be released by the United States as circumstantial evidence, it is basically stable. This sea area was not a busy international waterway to begin with, but suddenly something with a size of about 300 meters * 40 meters appeared, and the heading and time period were consistent. It''s almost impossible to think otherwise. "Finally..." The one with the highest rank among the people let out a long sigh, then walked to the big screen, put his hands behind his back, and looked up at the small, slightly distorted light-colored shadow. I dont know if its due to psychological factors, but after hearing the news just now, looking at it with the naked eye, it seems that the deck of an aircraft carrier has some angular appearance... "Finally I caught you..." he muttered under his breath. As the flagship of the Seventh Fleet for a long time, the Kitty Hawk has been active in various hotspots around China for most of its service life. Thanks to the fact that conventionally powered aircraft carriers do not need to undergo ultra-long maintenance and replacement of nuclear fuel, their effective time in flight is much longer than that of their later nuclear-powered descendants. Especially after entering the 1990s, he has been acting as a vanguard. Although the Kitty Hawk did not appear in the most well-known incident in 1996, two years earlier, in 1994, it had a confrontation with the then-weak Chinese Navy and Air Force. That is to say, after entering the 21st century, due to the long service time and the fact that it went to the North Arabian Sea to participate in a round of Operation Enduring Freedom in 2001, it has slightly faded out of sight in the past two years. But no matter what, the Kitty Hawk is definitely an old acquaintance to the Chinese Navy. And its the kind thats not easy to deal with In terms of dispatch rate alone, aircraft carriers certainly cannot compete with land airports. After multiple models of second-and-a-half-generation and third-generation aircraft have entered service, the quality of the Chinese Air Force''s small-scale top combat capabilities is not as good as those of the F14 or F18. But here''s the thing. As a mobile airport on the sea, aircraft carriers have unparalleled initiative. As a defender lacking countermeasures, China often needs to infer the whereabouts of the opponent''s fleet through public information as just now. And unless it docks at a certain port, this speculation is inaccurate. Moreover, if others really want to do something, they will often hide it or even deliberately provide false fleet navigation information. In this case, only when the target is very close to the coastline, the opposite position can be tracked through sea detection radar or reconnaissance aircraft. However, the over-the-horizon radar is subject to principles, and its accuracy is generally very poor. It is difficult for reconnaissance aircraft to break through the air defense circle, intercept and rush to the opposite side. This is why, even when it was about to be replaced at a high speed, the Navy still squeezed out part of the funds to support the technical verification project of Ocean One. However, today''s experience has been full of ups and downs. First of all, when Ocean One was turned on for the first time, it actually captured a valid target. As a result, before I could feel happy, a basin of cold water was poured down my head Few imagined that ocean remote sensing imaging could be so abstract under certain circumstances. The scenario in which a large number of remote sensing images are sent back by satellites and then analyzed and judged by the staff unit to finally form a strike chain is obviously not that easy to solve. However, on the other hand, the final results seem to prove that the spaceborne program''s ability to identify target features is stronger than expected. The staff unit is under great pressure, but the pressure on the staff unit is not that great... "The effect of this satellite is almost as good as all the reconnaissance methods we used in the past..." Chen Da from the General Armament Department came directly behind Chang Haonan: "Comrade Weiyong, and Xiao Chang, in your opinion, if we want to achieve uninterrupted continuous surveillance in the Pacific Ocean...at least the waters surrounding our country in the western Pacific, how many satellites like Haiyang-1 need to be launched?" Chen Dazhi served as deputy director of the Commission of Science, Technology and Industry for National Defense for a period of time before taking up the post of deputy director of the General Armament Department. Although he was transferred before Chang Haonan became famous, he was still among the first group of people to have contact with Chang Haonan. The title has been retained habitually. This somewhat sudden question made it difficult for Zhang Weiyong and Chang Haonan to answer for a while. Obviously the equipment department is encouraged by what happened today. So I got some new ideas. According to the original plan, after the successful technical verification of Haiyang-1, the real ocean surveillance satellite will be developed and launched in 5-6 years. But looking at what it means now, users dont seem to want to wait anymore... The two looked at each other, and it was Zhang Weiyong, a satellite expert, who gave his opinion first: "Director Chen, if we want to achieve truly effective military reconnaissance and surveillance, we may not be able to achieve it only by relying on satellites like Haiyang-1." "The sun-synchronous orbit satellite has an approximately circular orbit. The advantage is that a satellite can scan almost the entire earth''s surface in one day, and it scans the same point at the same time every day. As for Haiyang-1, it will scan at 9 a.m. every day. By passing through my countrys Kashgar Measurement and Control Station. "But the height of the sun-synchronous orbit is not high, and due to the performance of the current satellite equipment, it cannot provide a particularly wide viewing angle, so the range of each shooting is actually very limited... Such a satellite is more suitable for global coverage Monitoring, rather than revisiting a certain point frequently..." "In short, achieving 24-hour uninterrupted reconnaissance and surveillance around our country is as difficult as conducting 24-hour uninterrupted reconnaissance and surveillance at any point in the world..." What about geosynchronous orbit? Chen Dazhi still didn''t give up. He studied missile technology when he was in school. Although he didn''t completely match his skills, he wasn''t blind. "Geosynchronous orbit can indeed ensure continuous monitoring of a relatively large range, but the orbital height is too high and requires very advanced imaging equipment... There is almost no demand for this type of equipment except for military use, and the core components are monopolized by the Americans. , Even if we have good relations with Europe now, it will be difficult to get finished products. "In addition, even if the equipment problem is really solved, it will still require a very large satellite to carry it, and it will also require a large energy supply, and the weight will increase accordingly... The current Dongfanghong 4 is not enough in any case. In addition, to launch a behemoth of more than ten or twenty tons into geosynchronous orbit requires a heavy-duty rocket much larger than the Changsanyi..." Obviously, although China has developed quite rapidly in recent years, facing this kind of systemic backwardness, it is still not something that can be easily recovered. Looking at Chen Dazhi with an expression of "Master, please stop reading", Luan Wenjie, who is in charge of the development of the entire aerospace industry, shook his head helplessly and said comfortingly: "It''s not that there is no good news. Now the 10-ton Dongfanghong-5 satellite platform and several new launch vehicles with take-off weights in the 500-1,000-ton range have begun to be demonstrated. It is estimated that the project will be approved soon. The 20-ton I dare not say, but it shouldnt be a big problem to put a 15-ton object into geosynchronous orbit in the future..." Chen Da said frankly that you are coaxing children here. It is normal for more than ten years to pass from the beginning of demonstration to the completion of research and development... But when the words came to his lips, he looked at Chang Haonan, who was standing beside him with his head bowed silently, and finally held back. "Actually...it''s not necessarily impossible." At this moment, Chang Haonan suddenly spoke: "The current Haiyang-1 is a technology verification satellite, so the shooting angle of the on-board equipment is fixed and is limited to just below the satellite. If you want to adjust the shooting angle, you need to spend fuel to adjust the attitude of the satellite itself." "But if we remove other functions on a specialized ocean reconnaissance satellite, and use the extra space and power to install a staring device... it will be similar to a human neck... er... or an owl''s neck." Chang Haonan felt that language alone might not be intuitive, so he asked a staff member next to him for a piece of paper and drew a schematic diagram with a few strokes: "The shooting angle can be adjusted while the satellite itself is stationary. In this way, the effective reconnaissance time provided by one satellite will be greatly improved, and the number of satellites required can also be reduced to...probably single digits." (End of chapter) Chapter 1005 network coding technology Chapter 1005 Network Coding Technology The idea proposed by Chang Haonan is not difficult to understand. In fact, some countries have actually begun to demonstrate the feasibility of such satellite gazing technology internally. Of course, it is also not a simple matter for the device to continuously adjust the angle while maintaining the image quality. But compared with large-load satellites, heavy-lift rockets carry these things that require strong comprehensive national strength to support them. A single movable equipment platform is not enough for most countries with limited size but certain high-precision technologies on hand. Something you can achieve if you work hard. To put it bluntly, the basic principles of this thing and the multi-degree-of-freedom gimbal on the aiming pod are the same, and there are relatively few associated front-end technologies. For China, whose current external environment is relatively good, it can also take the path of introduction-digestion and absorption. There are no technical barriers that are completely insurmountable. "In this case... it can indeed extend the effective monitoring time of each satellite on key areas." No need for Chang Haonan to explain too much, Luan Wenjie quickly figured out the joints: "But the key point of military reconnaissance is timeliness. If a warship sails at full speed, it can travel about 100 kilometers away in an hour and a half, so it is definitely not enough to take effective pictures. It must also ensure that the things taken can be transmitted back in real time. OK..." "If the satellite is photographing the western Pacific Ocean over our country, that''s okay, but if the satellite itself is in the eastern Pacific Ocean, or even south of the equator... Even if the reconnaissance data can be obtained, it will have to wait for almost ten hours before the data can be re-entered. Transfer window Everyone who had just become excited suddenly calmed down again. However, Chang Haonan''s mentality was very stable, and he just sighed slightly: "There is no way. Satellite surveillance is something that only superpowers can handle. Even if some efficiency can be improved through some tricks, core technologies such as inter-satellite links cannot be circumvented..." In any case, it was an unexpected surprise to be able to capture the location of Kitty Hawk today. As for the 24-hour surveillance of the waters surrounding China, it was entirely due to Chen Dazhi''s temporary expansion of mentality. Therefore, after some ups and downs in mentality, everyone finally entered the celebration that was prepared before but was postponed to the present due to the interlude. Only Zhang Weiyong followed quietly at the back of the crowd, lowering his head as if thinking about something. "Mr. Zhang?" After chatting with Chen Dazhi and other acquaintances, Chang Haonan quickly noticed the slightly lonely figure behind him. After calling three times, the other party finally responded: "Oh...Mr. Chang" Zhang Weiyong showed a somewhat embarrassed smile: "Sorry, I was thinking about something just now, so I slipped away a little and didn''t hear you." "Still thinking about the ocean surveillance system?" Chang Haonan himself has actually been thinking about this matter, but he has become accustomed to multitasking, so outwardly everything seems to be normal. "Ah...that''s right." Zhang Weiyong nodded: "Or strictly speaking, I''m thinking about what you mentioned last about satellite relay communications." "Based on our current launch capabilities, it is indeed difficult to launch a large-scale reconnaissance satellite like a keyhole into geosynchronous orbit, but if it is just a communication relay satellite, only 3-4 satellites are needed. , it can meet the communication requirements between low-orbit satellites and between low-orbit satellites and the ground. "If such a relay constellation can be built, then in many aspects we can no longer pursue a single all-powerful satellite, but split different functions into a large number of low-cost small satellites, which is more in line with our current carrying capacity. level" After listening to the other party''s explanation, Chang Haonan couldn''t help but admire in his heart - This idea of ??"exchanging quantity for quality" is still a very advanced concept even if it is put aside more than ten years later. Although the most famous thing under this guiding ideology in the future may be Starlink, in fact, China had already introduced the same idea in the field of remote sensing satellites as early as 2014 before the SpaceX incident. The product produced is the "Jilin-1" optical remote sensing satellite constellation. It is ultimately planned to deploy more than 300 satellites to achieve the goal of revisiting any point in the world with a revisit period of less than 30 minutes. Almost as close to real-time reconnaissance as possible. And Zhang Weiyong''s ideas are even wilder. We must not only pursue efficiency at the information acquisition level, but also pursue efficiency at the information transmission level. For example, a satellite acquires a valid image information on the other side of the earth. Then there is no need to store it and wait for a communication window that can be as short as 90 minutes or as long as a few hours. Instead, the information is immediately transmitted back to the control center on the ground through 2-3 relay communications. The timeliness of satellite reconnaissance is completely reduced to near the theoretical limit (that is, the revisit cycle). "Communications relay star..." Chang Haonan lowered his head and thought for a moment: "I remember that in Project 921, in order to solve the problem of insufficient coverage of measurement and control stations and measurement ships in our country, there seems to be a research and development plan for data relay satellites?" Hearing this question, Zhang Weiyong looked at Chang Haonan with a slightly shocked expression: "I didn''t expect you, Mr. Chang, to know this?" "Well" Chang Haonan touched his chin awkwardly. Naturally, it was impossible for him to say that he knew this twenty years later, so he could only explain it casually: "You know, I have a good relationship with the Science and Technology Commission. When I applied for the Shenzhou-2 payload space for a project, I read some information from Director Luan..." Not a single punctuation mark in this sentence was false, so Zhang Weiyong did not delve into it further: "Yes, it does." He replied: "And the project was only established at the beginning of this year. The internal plan is called Tianlian No. 1." "I was just wondering if I could use these satellites of the 921 project to concretely verify my idea." For Chinese astronauts who started from scratch and have been frugal in the past few decades, making full use of existing resources and improving the cost-effectiveness of the project has almost become an instinct. But on the other hand, a high cost-effectiveness ratio means that in most cases the effect itself is mediocre Because the effect of reducing the denominator is much more obvious than increasing the numerator. Chang Haonan frowned after hearing this: "Tianlian-1 is just to solve the problem of space measurement and control window period. The data bandwidth is quite average. I''m afraid it is not very good at meeting the image and voice information flow needs between low-orbit satellite groups..." "I can''t help it...Actually, I''m still struggling with this matter." Zhang Weiyong sighed softly: "The synchronous orbit is too far from the low Earth orbit, which physically limits the bandwidth and delay..." Chang Haonan opened his mind directly: "Have you considered having relay satellites also operating in low orbit?" "ah?" This method is indeed a bit deviant for Zhang Weiyong: "Let''s not talk about how many satellites are needed... Even if the number is sufficient, there will be many data relay nodes in the communication network, and each node will cause signal attenuation and data transmission errors..." "It''s easy to say on the ground. Generally, the problem can be solved by repeatedly forwarding data. But if it is a satellite... it will bring a more serious burden to the network throughput and transmission efficiency... The final transmission effect may not have a small amount of synchronous orbit. Good luck with the satellite. While talking, Zhang Weiyong looked at Chang Haonan with slightly doubtful eyes. By the end, my voice was a little unconfident. In his opinion, the latter, as a big man who has made great achievements in many fields such as control and mathematics, seems not to make such a low-level mistake. Is there anything else that can be done here? The other party''s reaction was just as Zhang Weiyong expected: "If it is a general communication relay method, then there are indeed the problems you mentioned..." The group of people had actually entered the small canteen where the celebration was held. Chang Haonan did not forget to pick up a bottle of low-alcohol red wine from the side while he was talking and poured a little for each of them. Zhang Weiyong took the wine glass, but before he could drink it, he heard the second half of Chang Haonan''s words: "But Mr. Zhang may have heard of a new technology that was only proposed last year, called network coding?" "Some impression." He put aside the wine glass that had been brought to his lips: "But I remember it seems to be used on routing equipment?" "True, but essentially valid for any information transmission node." Chang Haonan pulled Zhang Weiyong to sit next to him, and then took out the half-used piece of paper from his jacket pocket: Simply put, it is to introduce generalized coding technology of different information at communication relay nodes, changing the original meaning of the transmission of special data in the network into the transmission of network data streams, which can greatly reduce the impact on network bandwidth when information is transmitted. The occupation can also increase the cost of deciphering information. " "Sounds... closer to a concept." Zhang Weiyong was obviously interested in this, but he did not immediately show any excitement: "Although I haven''t studied it in depth, I think... the entire communication effect is probably highly related to the generalized coding that was introduced, right?" "Of course." Chang Haonan picked up the cup and took a sip: "However, this happens to be the part I''m better at..." (End of chapter) Chapter 1006 maximum rank distance code Chapter 1006 Maximum Rank Distance Code In fact, Zhang Weiyongs earliest professional background was in communications technology. However, after he began to serve as satellite chief engineer in the mid-to-late 1990s, his main focus was on the overall engineering aspect. Of course, even if he was still specialized in his original major, he might not have noticed the paper that proposed network coding in advance At the beginning of the 21st century, we are catching up with the explosion of network communication technology. Not to mention every day, at least every month new concepts and new technologies are proposed, and almost every proposer claims that their research can change the world. Even a research team with abundant resources cannot pay enough attention to every result. Not to mention that Chinas aerospace research has always been focused on stability and is relatively conservative in the application of new technologies. But if its a technology thats been proven in other industriesthats another story. Therefore, after hearing Chang Haonan''s answer just now, Zhang Weiyong immediately sat up straight: "Mr. Chang still has research on information theory?" Data transmission and data compression are both categories of information theory. Chang Haonan has not had any research results in this area before. But after thinking about it, it seems that Chang Haonan has expanded into a new research field, which is not very surprising... "Although network coding does belong to information theory, I came into contact with this field purely from a mathematical perspective..." Chang Haonan explained with a smile: "You know, I have some research on topology and topological structures..." "Cough cough cough" At this moment, Zhang Weiyong just picked up the cup again and took a sip of wine, but was choked by Chang Haonan''s words. A man who solved the Poincar conjecture and created a manifold learning algorithm. Say you have "some research" on topology? That''s really well researched. After a while, Zhang Weiyong, who finally recovered a little, waved his hand to express that he was fine, and signaled Chang Haonan to continue performing... uh... keep talking. "In short...some time ago, someone came to me to review a paper on nonlinear coding algorithms. I found that there were several very basic theoretical issues in his paper. It was definitely impossible to pass the paper, but the ideas proposed were indeed Its very novel, so I stopped by to learn about the research background. After Chang Haonan drank a small glass of red wine, he did not continue. Instead, he got a thermos from somewhere and drank water instead. While talking, he also poured a glass for Zhang Weiyong. "So you''re going to study it in depth?" "Research is out of the question." Chang Haonan shook his head: "Things in the field of information theory are okay at the theoretical level. If you really want to study engineering applications, you will need enough time and funds. At most, I have a little understanding..." At this moment, Zhang Weiyong finally understood. The other party went around in such a big circle because he originally wanted to apply for the project with him, and then take advantage of the resources at the Aerospace Port. After all, not to mention that Chang Haonan is only a half-step academician now. Even if he is really a big brother in the Dzogchen realm of academicians, it is impossible for the country to build a batch of satellites or build an entire dedicated network just by talking about it. Carry out technical verification. It must rely on some names. Of course, Zhang Weiyong would not believe such nonsense as "I just learned about it and haven''t studied it in depth yet". "Can you tell me more?" he asked calmly: "I mean, about that specific broad code." "certainly." Chang Haonan turned the piece of paper to the back: "We first simplify a multicast directed acyclic network with single source and dual sinks. All point-to-point links in the network have unit capacity. S is the source, T1 and T2 are sinks, and the rest are intermediate nodes... " As he spoke, he drew two schematic diagrams on the paper. "According to the ''maximum flow minimum cut'' theorem, in any directed graph, the maximum flow of information from the input node to the output node is equal to the capacity of the minimum cut set that separates the input node from the output node. Then the multicast network in the figure below The maximum theoretical transmission capacity is 2 bits/unit time..." "If we follow the traditional model in the picture on the left, since link CD is the bottleneck of the network transmission, it can only transmit 1 bit of information. As a result, node C must use the traditional queuing storage method to realize information transmission, resulting in the throughput of each sink node. The amount is only 1.5 bits/unit time..." "In the picture on the right, node C encodes the received message a and message b... For simplicity, we choose the simplest XOR logic. In short, the sink node can use the received message a or b, and the relationship between a and b. The encoded result simultaneously decodes another unreceived message bit, thus reducing the transmission of one information stream and increasing the throughput of each sink node to the theoretical upper limit of 2 bits/unit time..." "Of course, due to the existence of the Shannon limit, it is impossible for any technology to compress data infinitely, but this is just the simplest case. You and I both know that the more complex the information transmission network is, the difference between the actual throughput and the theoretical transmission capacity will be. The wider the gap, the more obvious the potential of this type of algorithm..." "Wait a moment" Just when Chang Haonan was about to reach the end of his talk and the paper was finally almost full, Zhang Weiyong suddenly stretched out his hand: "Mr. Chang, what you just said is based on the premise that the transmission process is error-free... If any of the nodes on the right has a coding error or transmission error, then the subsequent nodes will be infected, causing errors like a computer Like a virus, it eventually spreads to the entire communication node..." "Not to mention that such errors are very common in normal communications. Military satellites also have to consider the opponent''s electronic interference..." The latter''s concerns are naturally justified. The traditional information relay method repeatedly sends data. Although it will cause lags and delays, the correct information can still be sent. But for this new trick that Chang Haonan is planning to do, if something goes wrong in the intermediate encoding and decoding process, the relevant data may be wrong. Moreover, because errors propagate so quickly, it can be difficult to figure out which step caused the problem. In the end, you still have to send data repeatedly, which will only become more stuck. However, when faced with this problem, Chang Haonan acted as he should: "That''s why I said, in-depth research and technical verification are still needed..." "If I can come up with ready-made technology now, then there is no need to go to you. I can just go to Director Luan directly..." "hiss" Zhang Weiyong scratched his head and felt that it seemed reasonable... "In short, Mr. Zhang, you just mentioned that the focus of this technology now is to develop encoding algorithms with stronger compression capabilities. The second is to find ways to find an error correction mechanism for the information transmission process, so that even if the data is being transmitted If an error occurs, it can be corrected at the next node, ensuring that the error will not spread between different nodes. Chang Haonan said, reaching out and tapping the paper gently to emphasize. At this point, we enter a field that Zhang Weiyong is relatively familiar with: "For example...maximum rank distance code?" "MRD codes do work." Chang Haonan was a little surprised that the other party could directly give him the answer he wanted, but there was no change in his expression: "However, the current research on MRD is mainly focused on using it for data encryption, and the error correction function is only incidental... Therefore, if you want to achieve strong error correction capabilities, you must develop new MRD code technology." "I can use the resources of the Torch Group to conduct some research and testing in the field of small-scale local area networks and aviation relay communications. However, these environments are still too mild compared to satellite communications. I definitely need a... or even It is a group of specialized satellites to conduct inter-satellite link testing to finally determine the feasibility of use in the aerospace field..." (End of chapter) Chapter 1007 air force data link Chapter 1007 Air Force Data Link Zhang Weiyong understood the meaning of Chang Haonan''s words almost immediately: "You mean, we need a practice series satellite... uh... preferably a satellite group?" "That''s right." Chang Haonan finally fully unfolded the map of Yan State and revealed the "dagger" in it. Immediately afterwards, he also emphasized one sentence: "And I need to be in the driver''s seat." Hearing this unabashed idea, Zhang Weiyong almost subconsciously held his breath and opened his eyes slightly. You must know that the "practical" scientific exploration and technology test satellites are a specialized series. Launched specifically for a certain item or type of technical testing. For example, Shijian-1 verified the satellites long-term on-orbit technology. The Practice Group 2 verified the satellite''s autonomous power supply and temperature control technology, telemetry tracking capabilities, and ionospheric environmental composition. Practice 4 verifies the space radiation environment... Obviously, they are all basic research closely related to the application of aerospace technology. However, from the launch of Shijian-1 as a backup satellite for Dongfanghong-1 in 1971 to 2002, China has only launched a total of 5 batches of 7 Shijian series satellites in 31 years. Therefore, ordinary projects will definitely not get this kind of treatment. The most I can give you is a lift Not only are you unable to participate in the R&D and operation management of the satellite itself, but even the control of the satellite equipment you install is in the hands of others. I''m just sharing the data with you. This is obviously completely unacceptable for most projects. Therefore, even such ruthless work as the ocean surveillance system first had the opportunity to go to space for technical verification through the launch of Haiyang 1. Later, the supporting role became the protagonist and pushed the Ocean Bureau to the sidelines. That was another story... In short, no matter what, Zhang Weiyong, as the satellite chief engineer of the aerospace system, never dared to have the idea of ????"testing the water with a practical satellite for a certain project." And Chang Haonan, an "outsider" in the aviation system, actually opened his mouth to such a big job... Its actually a bit Zhang Weiyong originally thought that newborn calves are not afraid of tigers. But after careful consideration, I found that Mr. Chang in front of me was only young, but he had a lot of work experience. He is the kind of hard-core ruthless person who is 26 years old but has 6 years of work experience. After thinking about it again, I found that although the other party''s idea seemed wild, it was not unworkable. Compared with marine surveillance, a relatively narrow application field, communication technology can be said to be one of the cornerstones of modern human civilization. Relay communications are as important as air, water and bread in today''s global network era. For a moment, Zhang Weiyong also had some ideas. People, there is no difference between having no dreams and being a salted fish. However, if he said such a thing, it would definitely not count. Even Luan Wenjie couldn''t do anything. "Mr. Chang, this matter still needs to be discussed in the long term..." Zhang Weiyong immediately became serious and suggested based on his understanding of this system over the years: "If you want to be a practical verification star, the technology application must first be broad enough, and the other is operability..." "The application aspect is not a problem..." Chang Haonan said almost without thinking: "Network coding technology solves the shortcomings of insufficient bandwidth and long delay in traditional communications... At present, almost all communication methods are troubled by these two problems." "Not only inter-satellite links, but also terrestrial wired networks, radio equipment, data links, industrial sensors, hydroacoustic communications...anyway, they can all be used." "Of course, network coding technology requires relay nodes to have encoding and decoding functions in addition to forwarding, so the size and cost of the equipment must be much higher than now. For civilian networks where bandwidth restrictions are not serious and stability is not a concern, Generally speaking, the cost-efficiency ratio may be relatively low..." Packet loss while playing games, lagging while watching movies... Although it is also very annoying, if the cost of solving the problem is to spend ten times the price to buy a router and pay the Internet fee, it may not be very popular with users. "So, the entire technology is basically geared towards commercial and military use..." Zhang Weiyong had already taken out a notebook from nowhere, and while recording, he concluded: "But it''s enough. Although the civilian network is large in scale, the market is actually limited..." Chang Haonan wanted to correct the other party''s thinking, but after thinking about it, it was only 2002 and it would not affect the matter at hand, so he gave up in the end. "Then it''s feasible...it needs to be tested on the ground before going to the star..." Halfway through, he was interrupted by Chang Haonan waving his hand: "Mr. Zhang, as I said just now, you don''t have to worry about these previous issues." "Our group still has a very tight task at hand, which is to approve a new model project in April. After this busy period is over, I will first verify the MRD code combined with network coding on a new model of the Air Force. The engineering feasibility of the technology The "new model of the Air Force" mentioned by Chang Haonan actually refers to the large-scale early warning aircraft that has been transferred to research and development. Like the previous life, it was named Air Police 2000. It''s just that the carrier aircraft was changed from the IL-76 to the C909 that has been modified for long range, that is, the luggage compartment space is replaced by a fuel tank. For the sake of stability and the formation of combat effectiveness as quickly as possible, this model still chooses a relatively traditional active phased array configuration, and the array is designed as a back-to-back C-band/L-band double-sided array. As for the more radical optically controlled phased array, it will be verified by the small balanced beam antenna that is being carried out simultaneously but mainly for foreign trade. Wait until the performance is completely stable before considering exporting to domestic sales. Although it is an electronically scanned radar, the disc-shaped radome of the Air Police 2000 can still rotate at a maximum speed of 6 revolutions per minute. Not for scanning, but to adjust the angle to make up for the blind spot in the field of view caused by the double-sided array. In addition to these performance improvements naturally brought about by platform upgrades, Chang Haonan is also preparing to introduce the Air Force data link system to Air Police 2000 for the first time. Of course, since there are not enough communication satellites at the moment, aircraft can only use direct transmission in most cases, or rely on ground relay stations to exchange data, and the effective range is relatively short. It''s only about a few hundred kilometers. But for the Chinese Air Force, whose main combat areas are concentrated around the country and whose mission is mainly active defense, this is still a huge improvement - The previous Air Police 200 was put into service relatively hastily due to its short development time. Therefore, although it can provide reconnaissance and early warning functions, it can only share data and command through radio voice communication. In other words, the target discovered by the Air Police 200 is only information of "azimuth xx, distance xx, quantity xx" to the fighter pilot. Although AESA can update target conditions hundreds of times per second, the commander''s speaking speed is always limited. So the information is still not real-time and accurate enough. As for the targets discovered by Air Police 2000, even if the fighter jet does not turn on the radar due to concealment considerations, or the target is far outside the detection range of the fighter radar, it can still be directly presented on the multi-function display through the data link. On paper data, there may not be much difference whether there is a data link or not. However, the timeliness and intuitiveness of information have been greatly improved. An absolute combat power multiplier. And this Air Force data link is almost an excellent opportunity to verify network coding technology. As a professional in satellite development, Zhang Weiyong was not aware of the twists and turns in the early warning aircraft project. But seeing Chang Haonan''s resolute attitude and obviously having a plan in mind, he decided to follow the other party''s arrangement after hesitating for a moment: "Then what I should do next is..." "Mr. Zhang, your next task is to carry out some pre-research work from the aspects of space launch and satellite design. In particular, you must prepare all relevant information. After I get the engineering verification data, you can complete the project as soon as possible and transfer it to Officially developed! Hearing this request, Zhang Weiyong could not help but frown. Not that he found the job difficult. On the contrary, it is actually too simple... "Mr. Chang, I will definitely do this kind of thing even if you don''t have to tell me. I just want to ask, is there any more... important work?" Seeing his calm appearance, Chang Haonan smiled. Obviously, the other party doesn''t know what he means by "as soon as possible". "If there is no force majeure interference, I hope to put the satellite into space within two years..." "puff-" Zhang Weiyong almost spit out the water before he could swallow it. He originally thought that the other party wanted to officially launch the project within two years. result ? ? ? (End of chapter) Chapter 1008 Is this the beginning of an integrated p Chapter 1008 Are you starting to build an integrated power system now? ?Zhang Weiyong put down the cup with a "numb" expression on his face, and at the same time punched his chest hard twice to calm down the breath he had just been having. "Wait a moment, wait a moment..." After he recovered, he quickly stopped Chang Haonan from continuing: "Mr. Chang, please forgive me..." "For a satellite constellation consisting of three satellites, let alone preparations for project approval and proof of principle, etc., even if we skip these steps and establish the project today, from the beginning of research and development to the smooth launch into orbit, it will be a long time. It takes about two to three years..." "That''s why I set a two-year goal..." Chang Haonan''s answer emphasized that it was natural, but it seemed that Zhang Weiyong was a bit unusual and strange. "Not...but..." The latter didn''t know how to respond for a moment, and he hesitated for a long time without uttering a word. "In the pre-research stage, we can also do some things..." Seeing Comrade Lao Zhang who was a little unable to hold himself up, Chang Haonan gave some guidance: "The low-orbit communication relay satellite does not need to be very large. 24 transponders are enough. Dongfanghong-3 should be a very mature platform now. I can first provide you with some hardware requirements for network coding technology. It is best to The overall satellite design can be solved on paper before the project is approved. After the project is officially approved next year, only equipment debugging and software and hardware adaptation will be required. It is not an exaggeration to complete it in two years..." Zhang Weiyong said nothing. He just looked at Chang Haonan dumbfounded. Good guy, other people''s pre-research is to study feasibility, and at most add some demonstrations of key technical nodes. In essence, it is a process that is more management than technical. As a result, as far as you are concerned, pre-research is just about completing half of the project, right? Chang Haonan also saw Zhang Weiyong''s uncertainty, so he cited his past successful experience: "Don''t worry, I did the same thing when I led the team to develop the turbofan 10 and the heavy-duty die forging press." "The initial funding is definitely insufficient, but by combining past development experience and technology to reduce some unnecessary experiments, we can still promote progress normally..." Next, Chang Haonan spent about ten minutes sharing some of his experiences with the other party. Its hard to say whether it had any actual effect, but in the end Zhang Weiyong agreed to his proposal. The first official test of Ocean One ended with such an "unexpected gain". Throughout the next April, Chang Haonan prepared for the QC300 gas turbine project as he had planned. As the chief engineer of the project, he is responsible for relatively few specific technical tasks, but most of the coordination and management tasks fall on his head. Especially matters related to cooperation with Shipbuilding Industry 703 - After the previous seminar, the top executives of both groups quickly approved the proposal to cooperate in the research and development of a new 30-megawatt power gas turbine. Considering that both the Navy and the 701 Institute responsible for the overall design preferred the second option at that time, which was to continue to make in-depth improvements based on the 052C and enlarge the hull to an 8,000-ton class, the baseline research and development for cooperation was finally determined. for QC300. In other words, Shipbuilding Industry 703 will participate in the research and development of QC300 in the form of "technical equity participation". Mainly the design work of the receiver and the intercooler. But the model dominance is still in the hands of Aerodynamics 606. In fact, it is equivalent to completing the selection. However, the 703 institute that "failed" in model selection can also obtain part of the funds and profits to support its continued localization and upgrade of GT25000. It''s a happy ending. In this case, it is equivalent to directly completing the project proposal and feasibility study. As for the preliminary design The QC300 is a turbofan 10 aeroderivative. The latter''s current performance in the Air Force is the best preliminary design illustration. Therefore, the project approval was naturally passed smoothly. It didnt even alarm the Science and Technology Commission or even higher-level leaders like the Turbofan 10 did. Only the four direct participants, the General Armament Department, the Navy, the Aviation Power Group and the Shipbuilding Industry Group, decided on the project. After the project review meeting, the deputy chief engineer sent by the 703 Institute slowed down and found Chang Haonan: "Mr. Chang, please stay." The latter was packing his things and preparing to leave. When he heard someone calling him, he followed the sound and looked over: "Oh...it''s Mr. Changshan..." He stopped what he was doing and turned to face the person: "You have something to say." Coincidentally, this deputy chief engineer also has a surname of Chang Shan. In fact, it is not uncommon for the first and second leaders to have the same surname. Just call Mr. Chang and Mr. Xiao Chang respectively and thats it. In the beginning, thats what everyone called it. Until one day, when Chang Haonan and Chang Shan were standing together, someone called Mr. Chang. Then they both raised their heads at the same time...The chief engineer is much younger than the deputy chief engineer, which is sometimes a problem... So later, everyone''s name for Chang Shan was directly changed to President Chang Shan. The situation in Changshan is very special. The 703 Institute sent him here not to compete with Chang Haonan for project leadership, nor to cooperate with Chang Haonan''s work. Instead, its related to another project Changshan''s area of ??expertise is not gas turbines, but transmissions. The diesel-fuel alternating system on 052B/C was developed by him. The transmission efficiency is very high, and more importantly, the mean interval between failures far exceeds the design requirements, and the evaluation is quite good. Therefore, he naturally became the chief designer of the transmission system of 052D. In the new model, the "chai" used for alternating diesel and combustion has not changed. Therefore, Changshans main job is to adapt his transmission system to the QC300. Then he ran over and asked for his name. To put it bluntly, he, the deputy chief engineer, did not participate in the actual work of the project, but only wanted to fully understand the situation of QC300. Therefore, being specifically stopped by Chang Shan today was somewhat beyond Chang Haonan''s expectations. "That''s right." Chang Shan sat across from Chang Haonan. Perhaps because the two of them were not familiar with each other, their movements were a little stiff: "I heard from Chief Engineer Lin Qinglin of the 701 Research Institute that, Mr. Chang, you have designed a fault fusion diagnosis system for the Type 054 frigate before?" Chang Haonan actually felt a little strange when the other party suddenly mentioned this matter. However, after thinking for a while, he still replied: "Strictly speaking, it was actually designed for the LNG ship at the Hudong Plant, and 054 just took advantage of it." "After all, if there is a problem with the LNG ship...especially if there is a problem with the cargo tank or the overall structure, it will be a big deal. So we considered the safety of the entire ship and designed such a system." "So, although it is called a fault fusion diagnosis system, it actually focuses on several aspects of structural safety, and its functions are still slightly limited when used on warships... For example, the combat system cannot be included in the diagnosis, including the power system, and Only the approximate location can be diagnosed, and engineers still need to conduct detailed inspections. "If you are engaged in transmission, you should know...the power part of a ship is generally relatively independent, and the ship''s electricity is another set of things." Hearing this, Chang Shan couldn''t help but nod: "Yes, I know that." "Actually, I came to you specifically today to ask, can this fault fusion diagnosis system be made more complete?" Chang Haonan didn''t reply, but looked slightly confused. That is to say, in addition to fault location technology, is it possible to add functions such as fault control management, fault prediction and risk assessment, and even fault self-healing? Chang Shan further explained. "hiss" Chang Haonan slowly sat up straight. The idea proposed by the other party was very close to his ultimate goal when developing this system. But since it is said to be the ultimate goal, it means that it is indeed more difficult to do it now. "It can actually be realized at the algorithm level..." He touched his chin and considered his words as he answered: "However, each system of the entire ship must be highly synthetic, so that the system can obtain the overall situation of the ship in an all-round way. In addition, one to two orders of magnitude more sensors are needed than at present, and the computing performance is no less than that of a supercomputer. The main control computer, these things...it is difficult to provide enough energy with just two diesel generators. "In addition, automatic fault repair cannot be done by repairing the hardware. We can only delay the outbreak of the fault as much as possible by adjusting the equipment working parameters after discovering the hidden fault. However, this requires the ship to achieve fully automated control... " "In short, it''s not difficult in principle, but in terms of engineering, there is no ship that can meet so many requirements at the same time... so there is no place to install it." Chang Haonan finally concluded. "Then Mr. Chang." At this time, Chang Shan showed a somewhat mysterious smile: "What if I say...it will be available soon?" "Um?" Chang Haonan was immediately shocked when he was suddenly asked a riddle. Chang Shan, who wanted to ask for help, did not continue to lie: "Our 703rd Institute, Shanghai 704th Institute, Bingcheng University of Engineering and Naval Engineering University are planning to build a technology verification ship together, combining power and ship electricity into one, and integrating them into one system for management." "In this way, the ship is equivalent to being driven by electricity, and the gas turbine or diesel engine is decoupled from the propeller. It can always work in the highest efficiency range and obtain faster response speed and stability; and because the high-power power machine directly generates electricity, Therefore, the power supply is no longer a problem, which is equivalent to directly solving all the problems you just mentioned..." Now, it was Chang Haonan''s turn to be stunned by others. So much so that he didn''t fully hear the last few words Chang Shan said. The thoughts in my mind almost blurted out: "No...it''s only 2002, and you''re already considering building an integrated power system?" (End of chapter) Chapter 1009 Real sea and air are linked Chapter 1009: True sea and air coordination Faced with Chang Haonan''s shock, Chang Shan''s reaction was... Even more shocked The former was shocked that someone was preparing to launch an all-electric verification ship so early. The latter was shocked at how Chang Haonan seemed to know this stuff very well... After the two stared at each other for a few seconds, Chang Shan said while thinking: "Integrated power system... is a good name, very general." Only then did Chang Haonan realize that at this moment, domestic research on integrated power systems should still be in a relatively early stage. So much so that there is a high probability that there is no definite noun to define it. His unintentional remark may have brought about the birth of this concept in advance. Of course, in the end, it''s just a name, so it''s not that important. What Chang Haonan is really concerned about is what he, or his research group, can do It has only been three years since the establishment of Torch Laboratory, and the first batch of students have not graduated yet. Therefore, there are only income but no expenses, and the overall scale is also growing year by year. The LNG ship at the Hudong plant has now passed the initial problem-prone period and has entered a relatively stable stage. In most cases, it is enough for several graduate students to take turns keeping an eye on the situation and reporting it in time. It is equivalent to liberating Liu Fangping and Lei Zhixing. Originally, Chang Haonan''s next arrangement was for the two of them to gradually transition to non-contact magnetic bearings and research on permanent magnet fault-tolerant power generation systems - Both of these people are from the mechanical industry, and it is only fitting that they are responsible for sending traditional rotor bearings (and their fellow students in the same major) to their graves. The only problem is that Torch Laboratory''s technical accumulation in this area is... relatively limited. Chang Haonan has indeed tried to apply a permanent magnet fault-tolerant power generation system on the SeA650 engine, but on the one hand he only verified its feasibility, and actually retained a complete set of mechanical rotor bearings. On the other hand, in addition to the design itself, it was designed by himself and Except for the 606 Institute, most of the core components have been selected from foreign suppliers. Even so, as its core power generation equipment, the relatively simple, mature and reliable switched reluctance motor was still chosen. The realization of high power density performance in a wide speed range of this kind of motor requires the establishment of a large gap to adapt to material thermal expansion and mechanical spacing specification requirements. Therefore, the output performance is poor and the volume is difficult to further compress. A more ideal choice is a permanent magnet motor. However, let alone Torch Laboratory, even if you look around the world, there are no particularly mature technologies and products. Germany, the United States, Britain, Russia and Sweden each have related models, but they are all experimental equipment, and their reliability and volumetric power density are generally not ideal. In addition, as SeA650 is a civil aviation engine developed for international cooperation, the scope of supplier selection can naturally be broadened. However, most of the projects of the Aerospace Power Group still involve, even specifically for military use. The large amount of bearing support parts requires a stable supply, and it is impossible to rely on imports for everything. Therefore, no matter from which perspective, you have to find a way to get the permanent magnet motor yourself. And this opportunity to participate in the research and development of integrated power systems is like giving away a pillow when you are drowsy - Although there are still hundreds of millions of differences between warship power and aircraft power, when it comes to integrated power systems, one of the key technologies is the permanent magnet propulsion motor. Of course, it is impossible to move products directly to Hangfa, but the technologies are always the same. Therefore, Chang Haonan simply asked directly: I dont know if its convenient for General Changshan to disclose it, but what specific step have you taken so far? "If you are in a hurry...our laboratory can first send a technician with relevant engineering experience to assist..." Chang Shan looked at Chang Haonan, who was suddenly more proactive than himself, and felt a little unbearable: "It''s not enough to keep up with the progress..." He waved his hand: "Currently, this project is mainly led by Academician Ma. It is the first project he led after being elected as an academician, so it is very stable." Hearing this name, Chang Haonan thought to himself that it was true. Academician Ma Weiming''s name is definitely well-known even though he had little interaction with the Navy in his previous life. At the beginning of this century, Academician Ma''s name had not yet become a household name, but he was actually a leading figure in the field of ship power supply systems. He was elected as an academician of the Academy of Engineering in 2001, largely because the ship power supply system he presided over and developed won the first prize of the National Science and Technology Progress Award the previous year. Of course, in the current timeline, Chang Haonan and Ma Weiming have not had any direct intersection, and they must not show too much understanding of each other. Therefore, Chang Shan on the opposite side did not notice any clues and just continued calmly: "We just completed the feasibility study at the beginning of this year and are still discussing whether to choose a medium-voltage AC solution or a medium-voltage DC solution, so the next step is to conduct a round of ground experiments in Jiangcheng." "After the technical route is determined, you can just send people over... Anyway, these early tasks have little to do with the specific technology research and development, or... Instead, we need to eliminate external influences and see which solution has greater advantages... " Regarding the choice between DC and AC, Chang Haonan knew from the perspective of hindsight that the correct answer should be the former. Moreover, even based on his own needs, he would definitely choose the former AC technology can continue to use land-based power system equipment. Engineering development only needs to solve problems such as equipment shipping adaptability improvement and full system integration. The engineering implementation is easy, but it requires high speed regulation performance of the prime mover and an increase in system power density and power supply frequency. Limitations make it difficult to compress the volume and weight, and the parallel connection conditions of alternating current generator sets are harsh. It is only suitable for objects that do not have high power density requirements and are powered by the same type of power supply. If the shipbuilding industry says your thing is too big, it must be really big. Americans chose communication technology that seemed to be a shortcut out of their confidence in their own technological research and development capabilities. Then a bunch of problems arise. Of course, DC systems also have technical difficulties such as high system integration, strong nonlinearity, and tightly coupled electromagnetic characteristics. But these parts are concentrated at the power control system level, which happens to be the part that China is good at. The solution is at least not as difficult as the AC system. For a moment, Chang Haonan had the urge to tell this set of analysis conclusions directly. Fortunately, I finally got it under control. No need. On the one hand, even if Chang Haonan is now well-known, it is impossible for other naval engineering systems to directly change the project plan just because of his words from an outsider. On the other hand, China''s technology research and development in the field of integrated power systems has basically never encountered particularly catastrophic setbacks, and there is a giant like Ma Weiming at the helm. In this case, allowing them to go through the entire R&D process normally is a necessary condition for accumulation. So when the words came to his lips, he changed it to a question: "So what Changshan means is that we need our Torch Group to complete the fault fusion diagnosis system and install it on the verification ship?" "That''s right." Chang Shan nodded: "Although integrated power systems are good, all technologies have two sides." "Centralized management and centralized distribution of energy throughout the ship means that system risks affect the whole body. Once the power system fails, it is not only the ship''s electrical system that is affected. In the most serious cases, it may even cause the entire ship to be damaged. The ship is paralyzed!" So, in addition to reducing the failure rate as much as possible on the hardware and setting up enough system redundancy to ensure that there is still a backup after a failure, we also hope to estimate the risk of failure of the entire ship before a failure occurs. , solve the problem in the bud. It can be seen from this incident that projects led by big bosses are indeed different. The problems are clearly sorted out, the solutions are clear, and there are multiple backups. Project risks are reduced to a minimum. It''s no wonder that China in the previous life was able to catch up from behind in the field of ship electrical systems. "Fault fusion diagnosis first requires a sufficient understanding of the electrical design of the entire ship, so I can''t guarantee anything until I see the specific plan." Chang Haonan did not take care of everything, but answered very cautiously: "So... after you select a specific plan, I hope to send a technical team, or at least a technical representative, to join your project and track the development of this technology verification ship throughout the entire process, instead of just being a provider. Party B of the subsystem. This is equivalent to the exchange conditions proposed by Chang Haonan. Chang Shan understood instantly and pointed at himself: "Like me in the QC300 project team?" "Almost." Chang Haonan replied: "I don''t insist on occupying the position of deputy chief engineer...but the people I send there must join your project decision-making level." After Chang Shan heard this, he hesitated for a moment: "Your request is indeed reasonable, but I am not the project leader, so I cannot agree on behalf of the entire team." "But I will report the situation to Academician Ma. He personally asked me to talk to you about this matter, so I shouldn''t refuse..." To this extent, it is basically equivalent to agreement. Its just that there are some administrative procedures to go through later. "Now, we can be regarded as having you in my arms and you in my arms in a literal sense." Chang Haonan joked half-jokingly. Chang Shan was stunned when he heard this statement, and then he also laughed - Institute 703 has now participated in the QC300 project led by the Aerospace Power Group. Torch Group will also send people to join the comprehensive power system research and development work hosted by Shipbuilding Industry Corporation. The linkage between sea and air belongs to yes. After some joking, Chang Haonan then stood up and stretched out his hand towards the other party: "Then... wish us a happy cooperation in advance?" A pleasure to work with. (End of chapter) Chapter 1010 Three-dimensional reconstruction of the Chapter 1010 Three-dimensional reconstruction of the Air Police 2000 platform During the month when Chang Haonan himself was busy establishing the QC300 project, Torch Group was also dealing with the aftermath of the Numerical Algorithms and Computational Science Conference. First of all, it is natural to officially release three different versions of TORCH Multiphysics 2.0 software In addition to the previously existing professional version and professional enhanced version, Torch Group has also launched the "pre-sale" of the Sugon version of the software in advance at the strong request of many users. That is the version bundled with Sugon 3000T. In fact, when Chang Haonan announced the Dawn Edition at the opening ceremony of the conference, he didn''t think that many people would actually buy it. After all, although Sugon 3000T is a streamlined supercomputer, it is still a behemoth with 10 sets of cabinets and a weight of 5 tons. For most small and medium-sized users, as well as foreign users, it is not convenient to purchase such a set of things. In addition, as China''s first supercomputer that has truly reached the international mainstream level, it has very strict performance requirements for components. At the same time, Sugon Group, as the current leader in the domestic semiconductor industry, needs to increase the localization rate of its products as much as possible. And high performance means difficult production. For the nascent domestic semiconductor industry, even if it uses the same imported equipment and raw materials as others, the yield rate is still not optimistic. As a result, after the localization rate increased, instead of falling, the cost actually increased. Of course, this problem is still secondary. After all, Torch Group''s products have never focused on cost-effectiveness, and the core user base doesn''t care much about price. The key is lead time. In the Dawn 1000 era, Jinghang University inadvertently set off a wave of universities buying supercomputers and servers. However, at that time, the mainstream was still importing foreign products, and Shuguang Group only got some soup. Even so, it still helped Shuguang Group, which had suffered huge losses for many years, turn losses into profits. Avoiding being sold to the Dream Group is second to none. More importantly, for the first time, it has opened up a complete circuit of product research and development - market launch - revenue generation - continued investment in product research and development. In the Dawn 2000 era, due to the influence of the Qinghai-Tibet Railway and the West-East Gas Transmission Project, this craze was inherited by many central enterprises in monopolized industries. Shuguang Group has also accumulated a considerable number of users in this process. As a result, before the Sugon 3000 series supercomputer passed the project acceptance, more than 30 users, including Torch Group and Aerospace Power Group, had placed orders for more than 50 units. It has not been delivered yet. Therefore, the delivery time of the Sugon 2000T ordered now will not be until the end of the year at the earliest. For many users, this cycle seems a bit too long. Taking these factors into consideration, Chang Haonan initially planned to release both Pro and Proplus versions first. As for the Dawn version, we will wait until the end of the year when it can be delivered. However, the situation was far beyond his expectation. In fact, as exchanges between China and Western countries have become closer in recent years, even the Proplus version, which was only available to some domestic units in the past, has gradually opened up its rights to foreign partners with sufficient specifications, such as Kompas and Tupolev. , Snecma and Dassault used. But even so, there are still many users who are unable to obtain Proplus rights, or are dissuaded by its outrageous price, who have shown great interest in the Sugon Edition Although the Sugon version is sold in a bundle, the Sugon 3000T itself is a supercomputer with performance among the top 100 in the world, and the software is equivalent to a gift, so it is not a loss at all. Its even more cost-effective than buying a Sugon 3000 alone. Before the end of the two-day Algorithm and Computational Science Conference, the number of users who came to inquire about this version and clearly expressed their intention to order was close to three figures... In the end, Chang Haonan, who couldn''t stand his over-enthusiasm, had no choice but to open the reservation channel in advance and promised to deliver products in the scheduled order starting from the end of the year. Compared with the colleagues who sold cars at press conferences before the rebirth, the only difference is the policy of "50,000 deposit equal to 100,000 advance payment". However, the situation faced by Chang Haonan is that there are too many orders and he is worried that the orders will not be delivered, so there is no motivation in this regard. In short, when the conference was over and Chang Haonan saw Academician Li of Shuguang Group one day in early April, he had no doubt that if the age difference between the two was not so far apart, the latter could perform a "Jie Piao Ling" for him on the spot. For half of my life, I just regret that I have never met the Lord..." In addition to the release of new versions of software, another thing is the numerical computing-graphical modeling alliance jointly established by Torch Group, Dassault Systmes, and Kompas. In the past, TORCMultiphysics also supported direct import of models from modeling software in various mainstream formats. However, anyone who has experienced the barbaric period of the software industry at the beginning of the 21st century knows this. Compatible does not mean easy to use. Especially after Torch Group upgraded their mesh generation technology many times, some old 3D models gradually became seriously "acclimated". So much so that before automatically generating the mesh, it is necessary to specifically adjust the model building nodes. but. After the formation of this software alliance, the three companies will completely open interfaces to each other to achieve maximum data compatibility. In fact, this has been implemented in the new version of TORCMultiphysics. For users, there is no change in the performance of the software itself. But it has doubled the user experience and work efficiency. The first project to benefit from this software alliance is exactly what Chang Haonan has been thinking about - Air Police 2000 Almost at the same time the QC300 project review meeting was held. Jinling. A conference room in the 14th Institute of Electrical Engineering. A technical discussion on the Air Police 2000 design plan is being held. It was said to be a technical seminar, but not many people attended. There were less than 10 people sitting on both sides of the long conference table. On one side is Academician Wang Xiaomo, the chief scientist of the National Early Warning Detection Project and the general manager of the Air Police 2000 project, and two other leaders from the General Armament Department and the Air Force Equipment Department. Opposite the three of them were Guo Lin, who had been promoted to deputy director of the 14th Institute and director of the Antenna and Microwave Department and chief designer of the radar system, five other heads of key subsystems, and an empty seat. This seat originally belonged to Liang Shaoxiu, who was seconded to Haofei Group as the chief engineer of the platform. He stood behind the desk from the beginning of the meeting, and then never found time to sit down and rest again... The reason for all this has to go back to Liang Shaoxius first sentence after the opening: "Dear leaders, our platform design team has successfully completed the three-dimensional reconstruction of the C909 carrier aircraft itself and the disc-shaped radome, and has separately calculated the carrier aircraft and the plan after the radome is installed on the carrier aircraft..." Originally, this was just a monthly technical meeting. But as soon as this sentence came out, the nature was completely different. "Comrade Shaoxiu, I remember... during the meeting last month, you said that this work would take about 4-6 months to complete?" Wang Xiaomo and Guo Lin have seen this kind of situation where progress suddenly becomes very fast. But after all, it is Liang Shaoxiu and not Chang Haonan who is standing on the stage today... So it was indeed a huge surprise. "What happened last month...that''s true." The reason why Liang Shaoxiu chose to reveal this news during the meeting was because he was influenced by Chang Haonan. At this time, he finally experienced the pleasure of "shocking his peers for a whole year": "Because the modeling and calculation workload of the radome is not large, the focus is still on the aircraft." "Actually, we have received aircraft design data transferred to us from Hufei Group before. However, these data all came from Tupolev. Although the annotations have been translated into Chinese, the file format is not fully compatible with the CATIA we used in the past. , so it was expected to take several months to correct the format. "And importing CATIA models into numerical calculation programs requires about the same amount of proofreading and modification work... Compared with these two processes, CFD and CSD calculations take up less time." "But after we actually started working, we found that solving the compatibility problem was not as difficult as we expected, so we released the results ahead of schedule..." This explanation made several people sitting below not sure how to evaluate it. After a while, Wang Xiaomo waved his hand and signaled Liang Shaoxiu to continue. The latter didn''t talk nonsense and continued to refer to Chang Haonan''s habits. Lets start with the big conclusion: "Judging from the results, after the C909 passenger aircraft platform has raised the vertical tail and installed two tail fins, it is still difficult to carry the ellipsoidal radome with a diameter of 10.5 meters and a thickness of 1.9 meters in the planned plan 3." "When the radome is set 2.8 meters away from the fuselage, the degree of downwash airflow generated by the wing will increase, resulting in a reduction in the angle of attack of the horizontal tail relative to the actual airflow, and a reduction in the lift generated by the horizontal tail. The maximum effective lift coefficient of the aircraft will be reduced to 1.107..." When he said this, the air in the entire conference room almost froze. The 14th Institute of Electrical Engineering has preset three radar plans for the Air Police 2000, with diameters of 10.5 meters, 9 meters and 8 meters respectively. Although after changing the three-sided array to a double-sided array, the array area that can be accommodated by the same radome has increased by about 30%, but no one will find the antenna size too large, especially when the packaging technology is relatively backward. Therefore, the project team still regarded the 10.5-meter radome as a priority solution. And if the calculation results prove that it is not feasible, then there is a high probability that the next best option will be made. However, Liang Shaoxiu did not worry everyone for too long. After a brief pause, he immediately changed the subject: "However, we tried to adjust the shape of the radome so that it could generate some lift while keeping the cross-sectional area unchanged, and then conducted a new test..." As he spoke, he clicked the mouse, and the cross section of the radome on the curtain immediately turned into an ellipsoid with a slightly flatter bottom: "After lift compensation, the influence of the radome on the maximum lift coefficient of the entire aircraft is reduced, only from 1.193 in the clean configuration to 1.178, which fully meets the design requirements!" (End of chapter) Chapter 1011 New requirements from Mr. Chang Chapter 1011 New requirements from Mr. Chang Regarding this unethical behavior of speaking loudly and focusing on the words after the big breath, the rest of the people in the conference room immediately violently criticized him in their hearts. In other words, the older ones sitting here are still pretty strong. If you are looking for someone with a bad heart, you will probably be on the receiving end of quick-acting Jiuxin Pills after listening to the first half. However, considering that Liang Shaoxiu advanced the project schedule by half a year at a time, everyone was not really dissatisfied. Suppress first and then raise, joy must still be the main thing. Especially Guo Lin, who is another chief designer. As a replacement product that has absorbed many experiences and lessons learned during the development of the Air Police 200, the development process of the Air Police 2000 radar system can be considered straightforward. Ground testing began even more than a year ago. Even the rotatable radome encountered more technical difficulties than the radar itself. However, no matter how realistic the ground simulation is, it is impossible to completely restore the situation in the sky. Otherwise, Air Police No. 1 would not have been hastily dismounted. It can be said that the entire Air Police 2000 project is mainly waiting for the platform. Once the platform problem is solved, the finalization is not far away. However, Guo Lin is a pure electronic engineer after all. Even if he has cooperated with Chang Haonan several times before, his research objects are mainly equipment such as airborne pods, not the aircraft itself. In contrast, Wang Xiaomo, who has been exposed to some aircraft designs through Air Police 200, needs to consider issues more comprehensively. "Comrade Shaoxiu, you just mentioned that the downwash airflow generated by the wings increases, resulting in a decrease in lift generated by the horizontal tail..." "Although modifying the design of the radome can make up for the total lift, the position of the radome and tail is different after all, and it is impossible to adjust the deflection angle. Will it affect the trim of the aircraft and the pitch controllability?" Compared with the T-shaped radome of the Air Police 200, which almost only needs to consider the impact of crosswinds and structural strength, the large disk not only expands the radar detection angle, but also brings a lot of aerodynamic troubles. In particular, the C909 is smaller than the Boeing 707 and IL-76, but the 10.5-meter radome is larger than the E3 and A50U. "As for the trimming issue, while the radome provides lift, it is also one of the main loads of the aircraft. It can affect the lift center and center of gravity of the aircraft at the same time. We have specifically tested the balance of the flight platform under different flight attitudes to confirm the current The design will not adversely affect aircraft trim. "As for the pitch controllability... because the impact of the downwash airflow causes the relative angle of attack of the horizontal tail to decrease, and the pitching moment provided by the horizontal tail is generally negatively related to the angle of attack, so unless it is in a very negative angle of attack attitude , otherwise the pitch controllability is almost similar to that of the C909 platform with a clean configuration, but it is even better at a positive angle of attack above 6..." Liang Shaoxiu said and released a highly restored model of the Air Police 2000 early warning aircraft: "After calculation, after combining the radome, the net stability margin of the entire aircraft is still 10.7%. Although it is slightly lower than the data of the clean configuration, it will basically not affect the flight quality." At this point, perhaps because he felt that it was not too rigorous, he then added: "At least it will not have a greater impact than the deterioration of heading stability..." In addition to the body itself, the core of the aircraft''s directional stability is the vertical tail. However, after carrying an oversized plate, the stability effect will definitely be affected. Even though Liang Shaoxiu specially lowered the height of the radome by 15 centimeters, raised the vertical tail, and added a pair of tail fins, he still could not completely restore the driving feel of the C909 itself. However, this is an unavoidable problem for all traditional configuration early warning aircraft. Fortunately, the aircraft''s directional stability is inherently redundant, and as a strategic support platform, the Air Police 2000 rarely flies in extremely large tilt angles or sideslip angles, so it is not unacceptable. "Mr. Liang, when can the flight test start?" After Liang Shaoxiu finished answering Wang Xiaomo''s question, Guo Lin, who was sitting opposite, could no longer restrain his eagerness to give it a try - Although he has served as the person in charge or chief designer of many projects before, these were mostly small projects. Even the air-to-air 200 pod back then was not at the same level as today''s early warning aircraft in terms of the level of attention it received from its superiors. It can be said that as long as the Air Police 2000 can be delivered on time, Guo Lin can firmly occupy the position of "successor of Academician Wang Xiaomo". "Now that the overall design plan has been basically determined, the next step is to do wind tunnel testing..." Liang Shaoxiu replied: "But we have a set of methods developed by... er... Mr. Chang, so the blowing tunnel will not take a particularly long time. If nothing else happens, it will probably be completed before the end of the year..." Although Chang Haonan''s identity has now become the leader of a friend''s business next door, his experience and standards in the aviation industry system still play a role. By locating the performance boundary as soon as possible, the wind tunnel test plus flight test cycle can be roughly shortened to about half of the original while ensuring the reliability of the test results. After hearing this answer, Guo Lin finally breathed a sigh of relief. Fortunately, it was within his expectations. But Liang Shaoxiu''s next words made his heart skip a beat: "The biggest problem at the moment is the platform itself. The first C909 aircraft that Hufei Group is responsible for final assembly has just rolled off the assembly line and started test flights. According to the initial plan, they will deliver a mass-produced aircraft to us as a modified aircraft before the end of next year. platform, so it is very likely that it will not be able to keep up with our accelerated progress..." This time, not only Guo Lin, but also Wang Xiaomo frowned slightly. It would be a pity indeed if everyone''s efforts to meet the schedule were wasted because of waiting for the delivery of the aircraft. After thinking about it again and again, he turned to look at the leader of the General Armament Department next to him: "Can you consider coordinating with the relevant units to first deliver us a Tu-214K assembled by Tupolev, so that at least the prototype can fly?" Figure 214K, where K stands for ڧѧ. That is, Figure 214 is designed and manufactured in accordance with China Aviation Industry Standards. Used to distinguish it from the earlier Figure 204/214S produced with Russian standards. There are almost no differences between the two models at the aerodynamic and structural levels, except that the former has been equipped with a two-person cockpit and a new avionics system. So in order to improve production efficiency and worker training efficiency, Tupolev finally stopped the production line of the old model altogether. Instead, Tiangangdi began to deliver aircraft produced according to the Tu-214K standard to Aeroflot. As a result, Aeroflot, which had already begun to adapt to Airbus and Boeing models, quickly expressed its popularity, and even had a tendency to force the Russian standards to move closer to the Chinese standards... According to the original supply contract, before the domestic version is delivered to China, several airlines such as United Airlines that plan to purchase C909 will also receive a small amount of Tu-214K first to adapt to pilots and ground staff. train. It shouldn''t be difficult to take one out and give it to the Haofei Group. Sure enough, although the leader of the General Armament Department did not immediately give a clear response, he also said that he would make an application to his superiors after returning. Even if it cannot be delivered in stock, it can at least be guaranteed that one of the next batch of aircraft delivered within the year will be used as a transformation platform... The discussion on aircraft design finally comes to an end here. As for the radar part that Guo Lin is responsible for, there is actually no need to make any progress since last month. There are only routine boot test records. Reports can be submitted regularly, and there is generally no need to report them specifically at a seminar. But today, after Liang Shaoxiu''s report, Wang Xiaomo did not immediately announce the end of the seminar. "Xiao Guo, please wait a moment." As he spoke, he took out a file bag from his briefcase and handed it to Guo Lin, who had already started packing his things: "A brother unit has submitted a new test request to us for the Air Police 2000 airborne equipment. Take a look." The other party''s description made the latter''s eyes flash with a hint of surprise: "Testing request from a brother unit?" Generally speaking, when it comes to major core projects, we will try to avoid unintended consequences midway. At present, the airborne equipment of Air Police 2000 has almost completed ground testing. It is definitely not something ordinary people can do to incorporate new functions or technologies at this juncture. With such doubts, Guo Lin took the file bag and opened it. Inside is a document that is not too thick. The first thing that catches the eye on the cover is a line of large characters "Feasibility Test of Application of Network Coding Technology in Airborne Data Link Communication System" "Want to develop an airborne data link?" Guo Lin had an expression on his face like "How come I didn''t know about this?". Just when he was about to raise his head to ask Wang Xiaomo about the specific situation, he accidentally glanced at the sponsoring organization at the bottom of the cover - China Aerospace Power Group. "call" All the confusion just now was gone in an instant. "That''s not surprising..." Guo Lin thought to himself. He quickly opened the document, which briefly introduced the installation of an additional data transmission antenna on the Air Police 2000 to realize real-time information interaction between the early warning aircraft and the forward fighter. Of course, currently it can only be carried out through direct transmission or ground relay transmission, so the effective range is limited. However, this test is to prepare for the future launch of high-throughput communication relay satellites, so satellite transceiver antennas will be reserved at the hardware level. As for the fighter jets The new batch of J-10A and J-11B will also be equipped with the same antenna, while the old batch or old model can temporarily solve the problem through a pod. "So... our 14th institute needs to integrate the search information from the early warning aircraft radar into this airborne data link communication system?" Guo Lin raised his head and asked tentatively. "That''s right." Wang Xiaomo nodded: "Although I also think that relying on ground stations for data relay... there may be too many intermediate links, but Comrade Haonan said that he has a way to solve the problems of high transmission delay and low transmission rate caused by multiple relay nodes. Let us Don''t worry." "In addition, the current system only requires one-way, that is, transmitting the information from the early warning aircraft to the fighter jets for reception. It should not be difficult for your 14th institute, but the complete form in the future will definitely require two-way." "Based on what I know about Comrade Haonan, I suggest you make a plan in advance. It''s best to get it right in one step... at least leave space for upgrading the two-way data link. Otherwise, I''m afraid that if you wait a few more months, his plan will be over. Its ahead of schedule again (End of chapter) Chapter 1012 Communication relay platform Chapter 1012 Communication Relay Platform Although Chang Haonan wrote in the document that he relied on "ground stations" for communication relay, this was just a general term used to make it easier for superiors and comrades in fraternal units to understand. In fact, the nodes responsible for communication relay do not need to stick to the formality. After all, under the premise that low-orbit relay communication constellations will be planned in the near future, it would be a waste of resources to really spend a lot of money to build expensive fixed communication sites in border and coastal areas. And to say the least, even if we don''t take this into account, the fixed relay station itself is a relatively fragile target in wartime, and it is easy to be taken care of by imaginary enemies. Therefore, after the project was officially approved, Chang Haonan actually invested in research and development, mainly on two platforms. The first is the stratospheric airship, which was developed under the leadership of Zhejiang University and has performed brilliantly during embankment operations. This is already a fairly mature technology, and Zhejiang University has not stopped upgrading and improving the equipment in recent years. In addition, its original design purpose was to serve as a communication relay platform, which can be said to fully meet Chang Haonan''s needs. There is no need to make major changes to the overall architecture, as long as the encoding-decoding function is added to the original function of receiving, storing and forwarding. Since its floating height is more than 20,000 meters, which is much higher than the general flight height of early warning aircraft, it can be used as a simulated satellite unit during testing to test the antenna performance of the upper hemisphere of the aircraft. Of course, because the distance is closer, the signal strength and signal-to-noise ratio are definitely still much stronger than real space-based communications. Moreover, the relay station itself is relatively static and cannot completely restore the scene of space-based communication. This is why Chang Haonan had to ask Zhang Weiyong to build the satellite. Another platform is a vehicle-mounted ground communication relay station. Compared with stratospheric airships, its functions are weaker and it is subject to stronger clutter interference, but it can achieve "communication while moving", that is, communicating while moving. It is used to test the antenna performance of the lower hemisphere, while simulating the constant motion of the satellite platform and the weak signal characteristics. The vehicle chassis does not require additional research and development. It can be modified directly with the SX2190 truck, which has a huge inventory. If necessary, you can also directly move it to other models. As for the research and development of the entire vehicle-mounted relay station, Chang Haonan neither chose the 14th Institute of Electrical Engineering, which is responsible for the research and development of Air Police 2000, nor the Space Technology Research Institute, which is responsible for satellite research and development. Instead, he went to the 54th Institute of Electrical Engineering in Shimen. Or strictly speaking, it was the leaders of Electronic Technology Group who took the initiative to recommend them to Chang Haonan. Because the 54th Institute is currently developing a series of satellite communication/scatter communication vehicles for military communication units and emergency rescue units. Although it is not completely consistent with Chang Haonan''s needs, the similarity is at least 90%. And the technologies are similar. Chang Haonan had no objection to this. The technical difficulty of the hardware level of this communication relay vehicle is not high, and the core algorithm of the software is still developed by him, so it does not require the partner to have strong capabilities. As long as the execution ability is strong enough and you have the ability to learn. Moreover, as a network communications research institute, the 54th Institute is not an ordinary person. So, about a month after the QC300 project was completed, one day at the end of May, Wu Wei, the head of the general department of the 54th Institute of Electrical Engineering, took a core team of four people to the capital to find Chang Haonan in person. . The latter did not beat around the bush and stated his requirements straightforwardly. In Chang Haonan''s office, Wu Wei looked at the densely marked technical information in his hand and showed a somewhat embarrassed expression: "Mr. Chang, using ground vehicles to relay communications for aircraft...technically it is not difficult to achieve, but..." He said while carefully considering his words: "But considering the size and power limitations of the vehicle platform, the range may not be particularly optimistic..." Communication has always been a matter of standing high and transmitting far away, so most of the ideas are to use aircraft in the sky as relays on the ground. This was the first time in Wu Wei''s life that he had heard of a reverse request. "It doesn''t matter, this is the effect I want." Chang Haonan''s answer was even more shocking: "If the transmission range is too wide, it will be inconvenient to test the theoretical throughput performance of a multi-hop network." Looking at Wu Wei, whose eyes were about to pop out, he had no choice but to continue explaining: "This kind of test, whether for confidentiality reasons or to reduce the impact on normal production and life, must be far away from the city, so the test area will most likely be placed in the northwest, with a maximum range of two to three hundred kilometers. I There must be at least three jumps in the middle, so the working range of the vehicle system basically meets the requirements...the airship has to specifically reduce the power. The amount of information in this paragraph took Wu Wei a few minutes to digest before he fully understood Chang Haonan''s ultimate goal: "So...the network coding technology you just mentioned is prepared for multi-hop communication?" "That''s right." Chang Haonan nodded, then raised his finger and pointed at the information in Wu Wei''s hand: "If you turn two pages further, there will be relevant technical instructions." The latter quickly lowered his head and turned to the position he mentioned. "Of course, there is nothing much to say about network coding technology itself. You are an expert in this field. You must have studied it...at least you have understood it." At this time, Chang Haonan continued: The real core of our test is to use maximum rank distance codes to provide sufficient error correction capabilities for the network coding transmission process to ensure that information can still be transmitted accurately even under strong interference caused by opponents...or the natural environment. " "What''s the MRD code?" Wu Wei put the information in his hand on the table and looked like he was thinking: "When the scatter communication vehicle project was first established two years ago, I also studied this technology. It can detect and correct errors in the matrix data structure. The error correction efficiency can be improved by five orders of magnitude compared with the traditional low-density parity check code (LDPC). Compared with Zhang Weiyong, who specializes in satellite systems, he obviously has a deeper understanding of this aspect. "As long as you have done your research." Chang Haonan put down the pen he was holding: "Not only is it error correction capability, but technically speaking, MRD code is also an encryption technology that is almost impossible to crack, which can greatly improve communication stability and security." The reason why he emphasized that technically speaking is because no encryption method can stop physical theft. In a system, the most reliable and weakest link is always the people. "But Mr. Chang, our research at that time was all completed on the supercomputer..." Wu Wei''s frowned brows still didn''t relax: "The encoding and decoding process of MRD codes relies on check matrices and generator matrices. It is very complex and its efficiency depends heavily on computing power. Even for supercomputers, the cycle to complete an encoding-decoding cycle sometimes has to be calculated in hours. , if you want to apply it to real-time communication, will the computing power requirements for the relay equipment be too high..." Chang Haonan was not surprised by this result. In fact, the reason why the maximum rank distance code, an artifact with incredible effects, was proposed as early as 1985 but has never been put into use is mainly because the encoding and decoding process is too complicated. The technological breakthrough he achieved was precisely in this part. "I think... what you were testing was the Gaby Dulin code?" "Yes." Wu Wei nodded: "After all, it is the most classic maximum rank distance code." "However, we have also tested several variants of Gaby Dulin codes. Generally speaking, the efficiency is improved compared to the original version, but it is not very obvious..." "But the maximum rank distance code I want to test does not entirely rely on the concept proposed by Gabi Dulin..." Chang Haonan picked up the pen he had just put down again: "The technical details about this part... are too long and cannot be explained in one or two hours. I will give you a special technical document later..." "But to put it simply, it is to introduce a new concept called the self-duality of the maximum rank distance code... uh... similar to the orthogonal concept of the matrix, that is, when an MRD code C and its dual code C are equal, We believe that it has self-duality. Under the premise of meeting certain conditions, an MRD code must be equivalent to a self-dual MRD code..." "Combining this concept, we can design a fast decoding algorithm for Gaby Dulin code... Of course, it can also be a fast decoding algorithm for other MRD codes, that is, for the adjoint formula S and i=t, t-1, t-2... Calculate the matrix Mi and the determinant det(Mi) until the first occurrence of i=m such that det(Mi)0, where m is the rank of the error vector e..." "Furthermore, we can let legitimate user A choose matrices S, Secret Matrix, so security can be greatly improved..." Although it was "in simple terms", Chang Haonan still talked for almost half an hour. This is based on the premise that Wu Wei has sufficient encryption algorithm foundation. "In other words, we use traditional encryption methods to transmit the asymmetrically encrypted message itself, and then use asymmetric encryption to transmit the key required for decryption. This can reduce the amount of data that requires error correction by the relay station and ensure transmission efficiency?" Wu Wei tentatively confirmed. Chang Haonan nodded happily and leaned his upper body back on the chair. Now, the latter at least understands the technical route part. As for the specific algorithm level... This can''t be rushed. Even he himself spent almost a month on this with the help of the system. "I have tested this MRD code combined with network coding technology on a small-scale wired network." Chang Haonan said lightly: "The result is that in a four-router multi-hop network, the actual transmission capacity can be increased by about 15-20 times, but the processing delay is a little higher and has to be calculated in seconds." "However, for satellite communications or space-to-ground communications, because the bandwidth is too low, transmission delay will replace processing delay as the dominant factor, and the actual displayed delay... will be reduced instead!" (End of chapter) Chapter 1013 Five times is not enough! Chapter 1013 Five times...not enough! Now that the technical principles and specific research and development routes have been clarified, the 54th Institute of Electrical Engineering has moved quite quickly. This is also due to the fact that the other party has been working in the field of ground mobile communications for many years. As the two most important projects at present, the two vehicle chassis communication equipment have actually entered the testing stage long ago. It''s just that the satellite communication vehicles among them have been limited in their performance because China''s own communication satellites are poor in number and performance. After receiving Chang Haonan''s project request, the 54th Institute only took about three weeks to complete the hardware transformation of four prototype vehicles, making them equipped with complete reception-decoding-storage-encoding- forwarding function, becoming a true network coding data node. Just for the convenience of testing, the decoding and encoding modules are designed to be completely shut down physically to minimize the performance impact of additional hardware on the control group. As for the procedures for encrypting and decrypting information That''s no longer a problem. Chang Haonan had conducted tests on the wired network before, and the program at that time could be slightly modified. In contrast, although Zhejiang University''s actions are not slow, they do not have any extra stratospheric airships on hand. It will take time to build new ones or to lower the ones already floating in the sky to collect weather data. The progress has fallen behind a bit. However, Chang Haonan was not prepared to change his plan because of this. The proof of principle does not matter whether it is in heaven or on earth. . Therefore, after the acceptance of the four modified relay communication vehicles, Chang Haonan sent them to the predetermined test area in western Mongolia Province. As for why it is Mongolia... Because Torch Group has a huge test field here. Since Comrade Zhuang Bingchang has not successfully developed alfalfa and soybeans that meet the requirements, and Chang Haonan himself has not yet found a polymer material that can provide sufficient shear resistance for the sand, this land has not really started to play a role yet. But after all, the right to use it belongs to Torch Group, and there are no large towns hundreds of kilometers around, so it is easy to get approval for radio transmission testing. The only problem is that in 2002, there was no highway network that later spread across the country, especially in the relatively remote areas of the central and western regions. So the four vehicles were first transported by rail from the capital to Qingcheng City, the capital of Mongolia Province, and then traveled hundreds of kilometers by themselves. It took nearly a week to get there. Of course, during the entire process, dedicated personnel from Torch Group and the 54th Institute of Electrical Engineering were responsible for escorting the vehicle, and Chang Haonan did not need to follow him personally The latter''s work schedule does not allow him to waste so much time on the road. As the general person in charge of the project, Chang Haonan only flew to TMTZQ Bikeqi Airport the day before the test. Then on the morning of the next day, he transferred to a Z-12 helicopter belonging to the Air Force Search and Rescue Brigade of the Beijing Military Region and arrived at a general aviation airport near the test site. When the helicopter landed, Wu Wei and others, who had already arrived here in advance, were naturally waiting near the apron. The general aviation airport mainly serves various types of helicopters, as well as small gadgets such as Y-5. The site conditions are naturally much worse than those of common civil aviation airports. Even the runways and aprons are unpaved surfaces that have only been hardened. Chang Haonan did not have much experience in helicopter rides before. So, he jumped out of the cabin as soon as he confirmed that the helicopter had stopped. Immediately afterwards, I was blinded by the dust that had not completely fallen back to the ground... Fortunately, the people who were picking up the plane were far away, so they were walking over slowly and did not notice Chang Haonan''s little embarrassment. "Report to Mr. Chang." Wu Wei came to Chang Haonan: "According to the previously determined process arrangement, all inspections of the four prototype vehicles have been completed and are just waiting for you to officially issue the test order!" Not far behind him, four SX2190 chassis communication vehicles were parked in pairs under two sheds made of camouflage cloth. Looking at the disgraced people in front of him, Chang Haonan took a deep breath, took two steps forward with emotion, and shook hands with Wu Wei: "Thank you for your hard work." Following the former''s gaze, Wu Wei lowered his head and looked at his earth-colored clothes: "Hey...where did this go..." "We wish we were out on business trips for ten months out of the year. We have never seen anything like this... we have already gotten used to it." As he spoke, he reached out and brushed off the dust on his clothes. But the effect is obviously not very good. So I had to change the topic: "Mr. Chang, the logistics comrades at the airport here have left lunch for you. Look..." Chang Haonan didn''t eat much in the morning. It was already past afternoon and he did feel a little hungry. But after looking at the four test vehicles in the distance with even the disk antennas deployed, I still felt that there was no time to waste: "Pack the whole lunch box for me, and find an empty space to take a sip during the test..." The four communication relay vehicles, according to the test plan from easy to difficult, will start from being 5 kilometers apart from each other, and gradually extend the distance in steps of 5 kilometers, until the distance is 30 kilometers apart. Subject to the influence of the height of the antenna and the curvature of the earth, the longest distance this type of communication vehicle can conduct direct communication is 30 kilometers. No matter how far you go, you have to use scattering communication methods. On the contrary, it is not conducive to the conduct of today''s test. As Chang Haonan officially ordered the test to begin, cars No. 2, 3, and 4 left the parking lot in sequence and drove west along a dirt road. As the signal transmission source, the No. 1 vehicle does not need to move. At this time, several technicians have begun to erect the antenna and raise the mast. The initial communication test with an interval of 5 kilometers did not require this thing. But the back is essential. A few minutes later, Chang Haonan also took Wu Wei into the compartment of Car No. 1. In fact, a conference room was set aside at the airport tower as the test command center. However, in order to see the results as soon as possible, Chang Haonan chose to get on the bus in person. Although the road conditions on unpaved roads are very poor, a hundred kilometers is not a very long distance for a vehicle. About half an hour later, car No. 4, the farthest car, also reported that it had arrived at the predetermined location 15 kilometers away. then. The first round of testing has officially begun. First, naturally, there is the control group. That is to say, according to the traditional relay mode, the relay station only receives and forwards data without processing the data. "All cars are in place!" On the radio, the voice of the on-site test commander Fu Mingyi came: "Car No. 1, start sending data!" For a time, in the originally noisy carriage, only the hum of the air conditioner and communication equipment was working, and the breathing of a total of four people, including Chang Haonan. The data content used for the test was set by Chang Haonan in advance, so the operator did not need to input anything on site. Just select the content on the operation interface and send it. However, after all, the program took less than a month to compile quickly, so there was no need to consider issues such as UI interaction. Not to mention others, even Chang Haonan himself was a little nervous looking at the slightly crude interface. Fortunately, the basic functions are relatively complete. It didn''t take long for the data transmission to come to an end. There is no doubt that even without looking at the specific results, you can tell just by feeling that the results are not optimistic - Network throughput is not the "average network speed" as commonly understood. The test method is not to transmit a certain amount of data files and then divide it by the final time. Instead, it sends a certain number of frames at a certain rate and calculates the transmission speed of the device under test. frame. If the two are equal, then increase the sending rate and retest until the number of frames received is less than the number of frames sent, and the corresponding rate is the network throughput. Therefore, it can be basically considered that the shorter the test time, the worse the results. In addition, it is not difficult to see that although the result obtained by this test method is a bandwidth unit of one byte/second, it is not only related to the transmission bandwidth. What''s more important is stability. "1.4 kilobytes/second..." Almost as soon as the numbers appeared on the screen, Wu Wei read it subconsciously. Even at the beginning of the 21st century, the results were shockingly slow. As he had estimated before, using communication vehicles for multi-hop transmission on the ground with poor transmission conditions would not end well. In fact, the measured throughput on the No. 2 bus is as high as more than 170 kilobytes/second. By car number three, there are still about 30 kilobytes/second left... Car No. 4 only has 1.4 kilobytes/second left. It is enough to see the devastating impact of adding relay nodes on transmission speed. Of course, such exaggerated results are indeed special cases caused by large local natural disturbances. But the trend is always correct. "Turn on the encoding and decoding functions of each car number and try again!" Chang Haonan recorded the experimental data and then ordered on the radio. For him, the worse the results in the control group, the closer they were to success. However, the premise of everything is. The experimental group can really measure better data. As the cooling fan of the cabinet started whirring again, the second test officially began. Theoretically, after the encoding and decoding functions are enabled, the network throughput will approach the Shannon limit. Although there will still be many effects in actual operation, no matter what, the results should be better than before. The testing process certainly lived up to expectations. It lasted several times longer than the first time. Although there is only a positive correlation between the outcome and the length of time, rather than directly proportional to it, this is at least a good sign. It wasn''t until more than ten minutes later that a number representing the throughput of Car No. 4 popped up on the screen as before. "6.8 kilobytes/second!" This result made Wu Wei''s eyes light up. You know, these numbers themselves do not represent the true level of his communications vehicle. But the improvement is real. Nearly 5 times! He has no doubt that if his own products use this technology, their performance will not be completely outdated even after 5 or even 10 years... "Mr. Chang, this..." He looked at Chang Haonan excitedly, ready to express his congratulations. But when he said it, he realized that the other person''s face... didn''t seem very good-looking. "That''s wrong..." Chang Haonan frowned slightly, stared at the results on the screen and murmured. The slightly weird reaction immediately confused Wu Wei: "No...what''s wrong?" What greeted him was a moment of silence. After a while, Chang Haonan said softly in a tone that was unclear whether he was talking to himself or answering a question: "I tested it on a wired network before, and the result was never 15 times lower...Why is the effect this time reduced by two-thirds?" Hearing these words, Wu Wei almost choked on his own saliva - Good guy, does this mean that the five times improvement is not big enough? (End of chapter) Chapter 1014 The neglected broadcast effect Chapter 1014 The ignored broadcast effect Mr. Chang, I think you shouldnt be too anxious Wu Wei, who couldn''t hold himself any longer, opened his mouth to comfort him: "The transmission rate and transmission stability of wireless systems cannot be compared with wired systems. The results are slightly worse... This should be normal, right?" "wrong!" However, Chang Haonan''s response was to shake his head decisively: "The transmission rate of the wireless system is indeed not as good as the wired system, but our test has controlled variables for the transmission method. Both the experimental group and the control group are wireless transmission, so there should be no difference in the magnification rate." "As for stability..." He paused for a moment, raised his head and looked at Wu Wei with serious eyes: "If we analyze it from this perspective, then for transmission methods with less stability, the improvement brought by network coding technology should be more obvious." "In short, there is only an improvement of less than 5 times...there must be something wrong..." Wu Wei wanted to express some objections to the description of "only five times", but seeing that Chang Haonan''s face was serious and did not look like he was joking at all, he swallowed the words that came to his lips. For a moment, the progress of the test stopped. West in June. Sunny day. It''s afternoon again. Even with air conditioning, the cabin is still stuffy. Everyone''s attention was focused on the test just now, so they didn''t feel it, but this meeting made people a little upset. Even Chang Haonan was inevitably affected by it. In short, I couldn''t immediately figure out where the problem was. The main thing is wireless communication, which has too many influencing factors. Just like aircraft design, humans only apply it based on engineering experience. In fact, there are still many principles that are not fully understood. So sometimes we really can only consider the possibility that the machine soul is displeased... "Reset the device and try again." Since his thinking was fruitless, Chang Haonan had no choice but to use his electronic product repair skills - Restart. The lack of guarantee was just an accident. His instructions were quickly transmitted to each test vehicle via radio. Technicians are already familiar with this kind of thing. So, after a lot of fuss, the new control group and experimental group data were quickly measured. The results were a little fluctuating compared to just now. But not much has changed. They are 1.6 and 7.4 kilobytes/second respectively. Still less than five times the result. After careful calculation, it''s actually a bit worse than the first time... Looking at the numbers on the screen in front of him, Chang Haonan felt the veins on his forehead throbbing. He only used the system in the process of algorithm development, which was long over. It is already in the engineering testing stage, and the system naturally does not include after-sales service. And he has no clue as to where the current problem lies, nor does he meet the basic requirements for system startup... "Mr. Chang, our next step..." Wu Wei mainly engages in ground single-hop communications, so in his heart he actually feels that this result is quite good, and there is absolutely no need to make things difficult for him. But he definitely couldn''t say this directly, so he just asked Chang Haonan what he should do next with a little hesitation. The latter looked at the time and knew that the test progress could not be stuck here forever. The results are the same twice, indicating that the problem is reproducible. It is not caused by accidental interference. On the other hand, since it can be improved by 5 times, it means that in principle, it is feasible to apply the combination of MRD and network coding to multi-hop communication. As for why it is only five times, we can study it slowly after we go back. "Let each car move its position and continue the test with a distance of 10 kilometers..." As he ordered, he jotted down the question and several possible possibilities in the notebook next to him. Wu Wei next to him was relieved when he heard this instruction, and quickly directed the other three vehicles to enter the next test position. Chang Haonan, on the other hand, sat beside him and continued to be lost in thought. Next, its a long wait After an unknown amount of time passed, he suddenly heard Wu Wei''s voice next to him again: "Car No. 1, adjust the antenna angle and deflect it 530'' to the right..." Obviously, at this time, each communication vehicle has arrived at the scheduled second round position and is ready for final debugging before testing. "Antenna angle..." For a moment, an idea flashed in Chang Haonan''s mind, as if he had grasped something important. Logically speaking, due to the relatively poor directivity of wireless communications, it is almost impossible for such a few adjustments of the antenna to have a huge impact on the communication effect. The reason for the adjustment is just to control variables and ensure the rigor of the test. To a certain extent, it is the professional instinct of engineers. But now that I think about it carefully, it provides Chang Haonan with a new idea. "Mr. Chang?" Wu Wei suddenly heard Chang Haonan repeat the words "antenna angle" just now. He thought there was something wrong with his operation steps, and quickly looked at the latter with questioning eyes. "It''s okay, keep testing!" Chang Haonan immediately cheered up again. His idea needs to be verified by the results of several subsequent tests. Because it was already the third operation, the testing team was familiar with the entire process. The efficiency is much faster than the previous two times. At an interval of 10 kilometers, the speed of the control group was still the same. 1.5 kilobytes/second. However, the situation of the experimental group has changed dramatically 10.3 kilobytes/second. When the result came out, Wu Wei''s eyes widened and he froze on the spot. "I c..." The quintessence of Chinese culture almost reached his lips, but he still forcefully took it back: "Seven...seven times?" Compared with the test results at a distance of five kilometers, this time it seems that there is not much change, but it clearly shows one thing - Chang Haonan was right just now. Five times is indeed not the limit. However, the more confusing thing is that the effect becomes better when the distance is farther... You must know that the main distance for direct communication of the division communication vehicles developed by the 54th Institute is between 5 and 15 kilometers. Therefore, he is and is most concerned about results within this range. "Mr. Chang, do you need to repeat it again?" After a while, Wu Wei recovered from the shock. Chang Haonan raised his wrist and looked at his watch, then calculated the time in his mind: "Repeat it, move quickly, and then immediately switch to the 15-kilometer test..." The following test results, from a qualitative perspective, are completely consistent with Chang Haonans expectations As the communication distance increases, the network throughput of the control group begins to decline significantly. However, the experimental group has been rising against the trend. By the time the four vehicles were 30 kilometers apart, the measured throughput data of vehicle No. 4 had reached 17.3 kilobytes/second. In terms of absolute speed, of course it''s still not fast. It can even be said to be very slow. However, compared with the control group, the improvement factor is basically close to the level when Chang Haonan conducted previous tests on the wired network. 19.7 times. Moreover, after adopting the new technology, the network throughput measured after three rounds of relays (car 1 itself is also counted as one relay) is only about 15% lower than that of one round of relays. The relay loss has been almost minimized! "call-" Chang Haonan finally breathed a sigh of relief after his suspicion was completely confirmed. As with most scientific endeavors, the most grueling part is sorting through a jumble of clues to find the problem. Once this step is completed, the subsequent part of solving the problem is relatively easy. At least on a psychological level. After a slight pause, Chang Haonan issued new instructions over the radio: "Attention, all cars, today''s test is here first, prepare to close the team..." Naturally, there is a dedicated person responsible for these finishing tasks, and there is no need for him or Wu Wei to handle them personally. Therefore, the latter took advantage of this free moment to ask Chang Haonan the doubts he had just had: "Mr. Chang, why is the transmission effect using network coding technology better after the communication distance is lengthened?" "Because of the broadcast effect..." Chang Haonan said as he pushed the door open and left the carriage, then found a position upwind, ready to blow in the refreshing evening breeze after the sun set. Although it smells a little like sand, it is much stronger than the stuffy and hot operating cabin. This is good for inland areas at mid- and high-latitudes. No matter how hot it is at noon, as long as the sun is out, the temperature will drop immediately. "Broadcast effect?" Wu Wei thought for a moment, but could not find this keyword in his brain. "Ah...yes, I just came up with this term. It''s normal that you haven''t heard of it..." Chang Haonan nodded and replied: "That is to say, all the information in the physical layer of the wireless network is transmitted in the wireless medium through electromagnetic waves, so that multiple receiving nodes can simultaneously monitor the electromagnetic wave signal transmitted by one sending node. On the contrary, the information sent by multiple sending nodes can also Received simultaneously by a receiver." "This results in the packet data of adjacent hops causing "self-interference" to the data of this hop in the same business flow. Most wireless communication systems only allow one source to transmit information at the same time, or other sources transmit information. The superimposed signals are treated as interference and suppressed, which results in the actual throughput of the wireless multi-hop network being significantly lower than that of the wired network..." "As the distance between several vehicles increases, the self-interference caused by the broadcast effect weakens, so the throughput shown actually increases." But this explanation did not completely eliminate Wu Weis confusion: "But... the control group should have the same effect, right?" "Of course." Chang Haonan put his hands behind his back, like a boss: "But the main factor affecting the network throughput in the control group is the transmission delay caused by repeated packet sending, and self-interference has little impact on it." "After applying network coding technology, the proportion of transmission delay gives way to processing delay. In this way, the broadcast effect becomes more obvious..." (End of chapter) Chapter 1015 The key to a two-way data link! Chapter 1015 The key to the two-way data link! After all, Wu Wei is an old engineer who has been immersed in the field of communication technology for many years. Although he was initially confused by the new terms coined by Chang Haonan, there was no obstacle to understanding the concepts mentioned by the latter. Logically speaking, the next step is to find ways to mitigate or even eliminate the self-interference effect caused by broadcast characteristics. It''s just...this problem is indeed special. Because in most cases, self-interference will only appear in wireless multi-hop networks. Just like the previous rounds of testing. However, in practical applications, since you have set up one or more relay stations between point A and point B, it means that the signal sent from A cannot be transmitted to B stably. There will be no strong self-interference phenomenon. In other words, the last set of tests just now are closer to reality. Therefore, Wu Wei immediately told Chang Haonan his thoughts. The latter did not answer immediately, but just lowered his head and thought while pacing around Car No. 1. In fact, although Wu Wei knew that Chang Haonan wanted to develop network coding technology, he didn''t know what he ultimately wanted to do. After all, this matter is more serious, and it also involves the anti-aircraft carrier system, a big killer. Although the other party''s confidentiality level is not low, the fewer people who know, the better. And from the perspective of Wu Wei as a ground relay, what he said is indeed correct. But satellites, especially low-orbit satellites, are different. It is not like a car or airplane that can move wherever it wants, but can only move according to a specific track and cycle. This means that there will inevitably be situations where multiple satellites come together, or the two satellites that are directly transmitting data are constantly getting farther apart, and a relay satellite needs to be connected in advance for backup. Therefore, for Chang Haonan, the self-interference problem must be solved. "That''s it, Comrade Wu Wei." After circling the car for an unknown number of times, Chang Haonan finally stopped in front of Wu Wei: "What you just said does make sense, so the research and development of this satellite/scatter communication vehicle will be carried out according to the original plan. The current network coding algorithm will be integrated first, so that at least the informatization pilot units can have something to use." "But in the long run, the application scope of this technology will not be limited to military encrypted communications, but will sooner or later be expanded to industry and even civilian fields. Therefore, while continuing to advance the project progress, we must also allocate some resources To avoid the impact of self-interference on data transmission. Such a compromise plan is naturally not difficult for Wu Wei to accept. He immediately nodded in agreement, and then asked Chang Haonan about his ideas for solving the problem: "Chang is always ready to continue developing new algorithms?" The essence of self-interference is that the receiving station cannot identify the same content signal source sent by different sending stations. Therefore, as long as it can be distinguished at the data level, this trouble can be fundamentally circumvented. Therefore, in Wu Wei''s view, algorithm giants like Chang Haonan are likely to have thought of specific technical solutions. However, Chang Haonan gave a negative answer: This problem may be difficult to solve by relying on algorithms alone "The basic function of a relay station, even one with encoding and decoding functions, is to ensure that the information content does not change during the transmission process. Therefore, the solution at the software level may only focus on the transmission sequence..." "But the throughput of relay communications is already tight. After adding network coding technology, the relay units are required to have higher computing power... If the transmission sequence is rashly adjusted during the signal transmission process, I am afraid that the performance will be improved with great difficulty. Its time to descend again Wu Wei was speechless for a moment. After a moment of silence, his eyes suddenly lit up: "Can we start with the hardware and make a special design for the receiver, such as a multi-hop network from A to B to C to D? At the physical level, we let D block the signals from A and B and only accept signals from C. If you send it, wont the problem be solved? These words made Chang Haonan''s eyes reveal a hint of surprise...and appreciation. Being able to come up with a completely feasible project plan in such a short period of time without any preparation in advance shows that Wu Wei, as the backbone of the 54th Division, does have something. He nodded slightly and said: "This is indeed the most intuitive and effective method." Wu Wei suddenly received such a high evaluation, and he was a little unresponsive: "Then what you mean is...according to this idea..." He even felt a sense of unreality when he thought that the solution he had inadvertently proposed might actually be adopted. Then, Chang Haonan handed him a basin of cold water: "But this method is not flexible enough, and it will also increase the complexity of the system, so...for now I am going to use it as a fallback solution." "Well" The excited expression Wu Wei had just shown froze on his face. Chang Haonan was also a little amused by the other party''s reaction and explained: "You think, originally my four stations ABCD can transmit and receive relays in any order, but after changing it as you said, it can only transmit in one direction in the order of A-B-C-D... These are only four nodes. situation, if there are more intermediate nodes involved in the whole process, the hardware waste caused will be more serious..." "hiss-" Listening to Chang Haonan''s description, Wu Wei couldn''t help but take a breath of air. Fortunately, the evening in the desert area was already cool, so the former did not feel that the surrounding temperature had dropped due to this. "Mr. Chang, are you... planning to establish a two-way data link for sea, land and air?" In almost a few breaths, Wu Wei keenly guessed one of Chang Haonan''s purposes. Even if it''s only superficial. "In the long run, yes." Regarding the data link, Chang Haonan has sent cooperation invitation letters to many units, so there is no need to hide it. However, except for Academician Wang Xiaomo, who had foreseen it long ago, and Wu Wei, who had just been informed, everyone else subconsciously thought that he was just planning to establish an air force, or at most a comprehensive command system for the three services. Since it is a command, it is only a one-way communication between superiors and subordinates. But Chang Haonan likes what Mr. Ma Weiming said very much - If you want to do it, go beyond the United States! Therefore, even if the current conditions are not met, he is still prepared to leave room for upgrades to the asymmetric two-way data link in the future. "Then since the software level cannot solve it, the hardware level will bring other problems... Do you have a third route?" After recovering from the shock, Wu Wei quickly brought the topic back to the self-interference issue discussed before. "The third route is of course impossible." Chang Haonan shook his head and said with a slightly helpless tone: "But I never said it couldn''t be solved at the hardware level..." "Huh? Then you just..." "What I just said is that there is a problem with the method you proposed. Don''t expand the problem to the entire hardware level." Chang Haonan glanced at Wu Wei and said in a joking tone. "Ahem" Wu Wei suddenly felt that there was a crack in his fragile heart that was difficult to heal... Chang Haonan finally stopped selling things: My idea is that instead of racking your brains to avoid signals sent by other transmitters, it is better to treat them as useful information, thereby further improving the throughput of the entire multi-hop communication system based on network coding technology. quantity!" (End of chapter) Chapter 1016 SeA650 engine, final assembly completed! Chapter 1016 SeA650 engine, final assembly completed! After hearing this statement, Wu Wei''s eyes showed a clear look of confusion. However, after today''s mental journey of ups and downs, his mentality at this moment has been tempered to be as solid as a rock. Therefore, even though he didn''t understand it at all, he still didn''t show it and just waited for Chang Haonan''s further explanation. After all, the latter has just mentioned that changes at the hardware level will be involved, and in the end it will have to be implemented by their 54th Institute. Sure enough, after a brief thought, Chang Haonan spoke again: "Theoretically, as long as the mapping relationship between the superimposed waveform and the information can be established, the superimposed waveform can be directly demodulated without the need to demodulate each user''s information individually... It only needs to perform a one-step XOR operation to eliminate The self-interference caused by the broadcast effect will not add too much additional computing power and power consumption burden to the system. "In addition, to complete a typical single-hop two-way relay communication in this way, only two time slots will appear in the middle instead of three in the traditional transmission strategy, which is equivalent to increasing the theoretical throughput by about one-third..." The jump in this derivation was indeed a bit big, but it made Wu Wei''s eyes clearer. Looking at the other party''s look, Chang Haonan knew that he probably didn''t explain the two paragraphs just now, so he had to return to Car No. 1 and take out his notebook - While waiting for the results of those rounds of experiments, he had already written down some ideas on it. "Under the constraints of half-duplex conditions, the system needs to perform two phases, uplink and downlink respectively, to complete a two-way relay communication. In the uplink phase, node 1 and node 2 simultaneously send their respective data frames S1 and S2 to node R, and in the downlink The stage is for node R to perform demodulation and network coding mapping based on the received superimposed electromagnetic wave signal, form a network coding data frame SR and broadcast it to node 1 and node 2. " As Chang Haonan spoke, he found a page with relevant content from his notebook and handed it to Wu Wei: "Because there is a mapping relationship between the superimposed waveform and information, the node only needs to use the encoded data frame SR and a data frame it originally owns to recover another data frame. At this time, the entire two-way communication process has been completed, and there is no need Here comes the third time slot. "Of course, the focus of this process lies in the specific plan for processing the received superimposed electromagnetic wave signal by the relay node R. I haven''t fully thought about how to design this..." While Wu Wei listened to Chang Haonan''s explanation, his eyes quickly scanned the contents of the notebook. Although the illustrations are a bit abstract and the handwriting is more fluent, he is not a newbie with zero basic knowledge. Moreover, there are notes beside him for live teaching, so he can quickly understand the above content. after He couldn''t help it and read it again. Although the above does not involve engineering implementation methods, even if it is just from the perspective of ideas, it is enough to impress people. It''s a pity that the two of them are standing on the Gobi Desert and there is no table. So Wu Wei had no choice but to do the next best thing and slapped the hood next to him: "Mr. Chang, isn''t this another implementation of network coding at the physical level?" This summary is indeed insightful, and can even be said to penetrate the phenomenon directly into the essence. Even Chang Haonan couldn''t help but look at him differently. "This is really the case from a principle level..." He nodded: "In my opinion, this technology is called physical layer network coding technology..." While Chang Haonan was busy developing a two-way communication relay system. Another key project in the hands of the Aerospace Power Group has also achieved important phased results. After a R&D cycle of about two years, the first SeA650 prototype in complete technical condition was finally assembled and rolled off the assembly line at Snecma Group''s factory in Villaroche. Moreover, a few days ago, Snecma''s wholly-owned subsidiary Herrell-DuBois Group had also produced two sets of engines for the first prototype according to the design provided by China. nacelle. This also means that the power system of the entire Falcon Z project has officially entered the actual machine testing stage. Of course, since the entire SeA series of engines uses the core engine of M88-3, which has previously conducted a total of thousands of hours of single experiments in China and France, the whole process will not be as long as a brand-new engine. If all goes well, we will definitely be able to catch the first flight of the model early next year. If a new aircraft is equipped with a new engine, there will definitely still be risks. Especially when both sides use a lot of new technologies. However, thanks to their good aviation technology and excellent basic industrial level, Europeans do not have much psychological burden on this kind of thing. Moreover, right now, there are no other alternatives available on the market. Only the BR700 series jointly developed by Rolls-Royce and BMW is considered to be at the same level. However, Dassault business jets have never used Rolls-Royce products in the past, and the Falcon Z has integrated flight and thrust control. If you want to replace the engine control system, you will even have to modify a special version of the flight control. In short, no matter from the market or technical level, it is better to go directly to SeA650. Anyway, judging from the situation of M88, there shouldnt be any big mistakes. As the main designer of SeA650, Aerospace Power Group naturally sent a team to France to participate in the delivery ceremony under the leadership of Liu Yongquan. When an important partner comes to visit, unless there are special needs such as confidentiality, the reception methods are the same whether at home or abroad. First have a round of eating and drinking, and then introduce a history of the company''s development (if the company history is too short, skip it, or change it to the boss''s family history), then arrange a visit to different areas of the factory or R&D center according to the specifications, and finally have another round of eating and drinking . The formal ceremony will not be held until the next day. What Liu Yongquan and others faced was basically this set of procedures. It must be said that as a veteran aviation company, Snecmas final assembly factory is indeed worth a visit. Although Huaxia has made rapid progress in recent years and has approached or even achieved international leading levels in many individual technologies, there is indeed still considerable progress in the overall organization and management of the factory, as well as basic skills such as mechanical processing and manufacturing. space. Not to mention anything else, Liu Yongquan found many details worthy of learning from Liming Factory just as he walked through the workshop working environment and worker safety protection. Of course, he came here to visit today, not to study. Therefore, the group of people walked around and quickly arrived at the engine that would not be officially delivered until tomorrow, but had actually been tested on the bench for several rounds. As a small engine with a medium bypass ratio, the SeA650 is not large. Even because of the cancellation of the afterburner, it is shorter than the M88. So if the thirty or so people wanted to watch, they had to be divided into two levels: inner and outer. But with Liu Yongquan''s identity, of course he can have direct and close contact with him. He leaned down slightly, put his head in front of the tail nozzle, and looked at the internal turbine structure. It is not difficult to see from the light coming from behind that the turbine blades used in this prototype are still produced and exported by Liming Factory. As for the turbine disk Although the view is blocked, the results are obvious. Snecma has been trying to mass-produce SeA650 turbine parts at its parts manufacturing plant in Gennevilliers since March this year. But Paris is a trial production workshop, which is considered a pilot environment, and there are still many differences from the actual factory. In the end, it took more than two months and still no complete batch of qualified products was produced. With no choice but to place a new order with China before final assembly, it was used for the production of a total of four prototypes. Although to this day, Snecma has not publicly admitted that it will use parts provided by Liming Factory in mass-produced products. But everyone already understood it tacitly The yield rate produced in two months is 0, which shows that there is a big problem in the process technology and even the process route, which cannot be solved by simply adjusting parameters. Whether it is a complete upgrade of an existing process or the development of a new process from scratch, the cycle is basically calculated in years. Your Falcon Z will make its first flight early next year as planned, and the product will be delivered the year after next at the latest. How can I have so much time for you to slowly study new techniques? We can only use imported parts to top it off first, and then make long-term plans in the future. Just like when China introduced the Arriel 1C engine from France. It''s just that now the offense and defense have changed. But then again. In this way, the next move is almost obvious. As an important partner, Aerospace Power Group cannot wait for Snecma to complete technical research before kicking itself out of the supplier list. Therefore, you must sign a minimum supply quantity and minimum delivery time guarantee contract. That is to say, no matter whether Snecma solves the process problem or not, it needs to order no less than a certain number of products every year for at least x years. Or simply, within the entire life cycle of the entire series of engines, no less than xx% of turbine parts must be supplied by China. In fact, Liu Yongquan led the team on this trip. In addition to participating in the delivery ceremony, another important task was to communicate with Snecma and reach such an agreement. (End of chapter) Chapter 1017 The shock took Ying for a whole year Chapter 1017: Shock brought Ying for a whole year As the first model of the SeA series engine and the core power of the entire Falcon Z project, the delivery ceremony of the SeA650 can be described as full. In addition to the four major project participants, as well as Paris Aviation Services and China Silver Deer Airlines, which are currently confirmed as the first users of Falcon Z, even French officials sent representatives to attend. Jean-Pierre Raffarin. The conservative senator from Vienne was appointed as the new head of government by Jacques Chirac last month. The obvious reason why such a big boss came in person is that his constituency contains many aviation manufacturing suppliers, involving a total of about 20,000 voters, so he has always been a die-hard supporter of the French aviation industry. And he owns a Falcon 900 private jet. But in fact, at least another equally important reason is that Raffarin has always been known as a so-called "pro-China" figure in the political arena. This of course does not mean that he really likes China. It''s because behind the People''s Movement Alliance to which he belongs, there are a large number of funders who have reaped the dividends of cooperation with China in the past few years. Some simply started out because of this. Alliances formed out of common interests are often stronger than those formed out of emotions. Therefore, the first thing Raffarin did when he arrived at the scene was to take Liu Yongquan and several other company representatives and take a photo with the SeA650 as the background. The craftsmanship of French journalists is indeed commendable. The choice of angle is very good. The receiver with diamond pattern shines in the sunlight. On the engine bracket below, there are two national flags of China and France. In front of the engine, a dozen people crossed their arms and held hands, looking happy. The publicity effect is full. Although in the development of this model, Snecma and Dassault were "forced" to make a lot of concessions to China. But as far as the entire Falcon Z project is concerned, the French still make a lot of money - As estimated by the Dassault Civilian Department in previous years, China''s business aviation industry has developed extremely rapidly after 2000. The top group of wealthy people have begun to purchase their own private jets one after another, while those at a lower level have also driven the development of the business aviation industry through leasing. This part of the business almost exclusively belonged to Bombardier and Gulfstream in the past, but with the emergence of the Falcon Z project with Chinese origins, North American companies'' monopoly on fixed-wing business jets is gradually being broken. In addition to the demand for special-purpose aircraft platforms such as aviation medical and telemetry surveillance... In short, it is a market that, although not as good as civil aviation, is definitely more potential than pure arms sales. Of course, it was not easy for Raffarin to come over, and he certainly couldn''t just take a look at the engine and be done with it. Therefore, after the entire ceremony, I also asked about the Falcon Z project status. "The original schedule is all on track. It is planned to make its first flight before the beginning of next year, mass production and delivery by the end of next year, and at the latest the first half of the next year." When talking about the progress of Falcon Z, Ed Steiner also showed a look of relief. Although many obstacles were encountered during the research and development process, and even many tasks that were originally planned to be completed by themselves were forced to be handed over to China, in any case, the leadership was still in the hands of Dassault. On this basis, the entire project was neither over budget nor overdue. It might even be possible earlier. Against the backdrop of declining engineering efficiency in recent years, it is simply the pride of France. "very good." Sure enough, after hearing this answer, Raffarin nodded with satisfaction: "The current government official planes are a few Airbus A319CJs. They are too old and the range is too short. They can''t even fly directly to Washington or the capital. Moreover, many times we don''t have that many accompanying personnel..." Although the words may sound a little off-topic at first glance, considering the context of the conversation, it is obviously a clear hint. The business jet fleet may need to be updated. Although the bulk of them definitely belongs to Airbus, there is a high probability that it is the Airbus A340 with a long enough range. But as long as you can spend some money to lobby, it shouldn''t be difficult to get some of the pie. Ed Steiner quickly caught the baggage: "The largest model in the Falcon Z series can accommodate 14 passengers and can fly up to 12,000 kilometers..." There are many ways to convey benefits in private, and it is impossible to discuss the black-box transaction part in such a public place. Therefore, Ed Steiner just quietly reported the range and passenger capacity of Falcon 8Z, indicating that he had the ability and willingness to serve as a new supplier - Of course, what he is interested in is not the few single-digit orders, but the advertising effect in the business jet industry. Raffarin was also a thousand-year-old fox and immediately praised: "Compared to those business jets in the past, the performance is indeed very good." Then the conversation changed again: "I wonder when you are going to release the specific performance data of this model?" Today''s delivery ceremony is actually a semi-public event. After all, many media and industry peers have been invited. But as a product, it definitely needs a more suitable promotion platform. "Soon, Your Excellency, it should be in a few days..." Ed Steiner replied, while showing a smile: "How many days later?" In fact, Raffarin was thinking about the Farnborough Air Show to be held next month. The answer turned out to be even earlier than that. "Well, next week, the European Business Aviation Show will be held in Geneva, Switzerland." Ed Steiner explains: The content of the Farnborough Airshow is too complex. Regardless of the professional day or the public day, most peoples attention will be on military aircraft and large passenger aircraft from Boeing and Airbus. On the contrary, this small but sophisticated At the exhibition, there are fewer people joining in the fun, and the visitors are very purposeful, which is more suitable for the promotion of Falcon Z. " "We have specially prepared a cross-sectional model of the Falcon 8Z and a full-size model of the SeA650 engine. Now it has been packed and ready to be sent to Geneva for the exhibition..." "..." Air shows are actually mainly for users. After all, business jet customers are very busy and dont have much time to pay attention to scattered aviation industry news. Even a business airline that specializes in business jets cannot look at so many suppliers around the world every day. So a special occasion is needed to provide them with news. But for those in the industry in the true sense, the content revealed in this delivery ceremony is enough to judge a lot of things... the next day. Birmingham, UK. Rolls-Royce headquarters. Luke Norris hurriedly found Professor Roger Elinor who had just assigned the next phase of tasks to the technical team. The latter, as a professor at Cranfield University, has not actually joined Rolls-Royce, but he comes to Birmingham in person every 3-4 weeks to confirm the development progress. "Hello, Professor Elinor." After stopping the other party, he first said hello pretending to be relaxed. But Elinor didn''t accept this trick at all, and just waved his hand slightly impatiently: "If anything happens, just tell me..." When he took over the EJ200 project a few years ago, he originally thought it was just an ordinary small job filling holes for young engineers who were becoming increasingly unreliable. As a result, when I actually started working, I discovered that although there was only one pit on the surface, there were a bunch of invisible traps surrounding it. I couldn''t tell which foot was missing and I fell straight into it. In four or five years, the EJ200 will be adjusted to a usable state, but there is indeed still a considerable gap between the paper performance that was promoted back then. For this reason, Elinor even had to postpone his retirement plan. Therefore, some irritability is inevitable. "Professor, here is a promotional material provided by Snecma. The content is quite detailed, so I would like to ask you to analyze it..." While speaking, Norris took out a document from the briefcase under his arm...strictly speaking, it was a book of information. Seeing the other party''s sincere attitude, the latter really couldn''t refuse, so he had to accept it: "Snecma...is it the M88 engine again?" But as soon as he finished speaking, before Norris could answer, he had already noticed the content on the cover. SeA650 engine. Strictly speaking, this is not exactly a promotional material. It''s also a bit like a technical manual. Of course, its impossible to get into any specific technical details The French themselves haven''t fully understood it yet. But it is similar to users, mainly maintenance personnel. Because this kind of thing needs to be distributed in large quantities, it is impossible to keep it secret. Technical manuals for almost all civilian engines can be found on the second-hand market. Therefore, Snecma directly modified it based on it and prepared to see if it could be sold to other users besides Dassault. It was natural that the British got it. Elinor flipped through it briefly and felt that the thickness was a bit shocking, so he frowned: "I''m just the technical consultant for EJ200. This is considered extra work..." "We can add money." Six words directly answered all the professor''s dissatisfaction. In fact, the main reason why he has not given up his job despite high blood pressure is that Luo Luo does not care about how he behaves in other places, but the money is indeed adequate. "Let''s go and sit in the office for a while..." As Elinor walked to his office, he flipped through the information in his hand: "To be honest, although it is indeed much more detailed than ordinary promotional materials, I don''t think this thing is too big..." At this point, his voice stopped abruptly. Even the steps stopped. Norris, who was walking next to him, was unprepared and almost tripped himself to the ground when he made a sudden stop. He turned to look at Elinor. But he found that the latter was staring at a certain page in the booklet. Even the blue irises vibrated slightly. "professor?" Norris tried to shout. After a while, he heard the response. It''s just a question: "I remember you said before that the core engine of this model...is shared with the M88 engine?" "That''s right." Norris nodded. Elinor''s expression became serious: "But the combustion chamber outlet temperature given here is nearly 100C higher than the previous M88-2 data?" (End of chapter) Chapter 1018 Black technology for the A380? Chapter 1018. Black technology prepared for A380? Sharing the core engine means that the high-pressure compressor, combustion chamber and turbine are basically the same. Of course, if the same core machine is in different working environments or has been upgraded, it is normal for the operating temperature to be somewhat different. But the problem is that the difference between M88-2 and SeA650 is less than a year. As for 100, the temperature in front of the turbine is almost half a generation away. Although it cannot be said that the higher the temperature in front of the turbine, the better the engine performance will be, but the correlation is indeed relatively strong. So there must be something wrong here. However, by this time, Norris had not fully realized the seriousness of the matter, and just guessed casually: "Perhaps it''s some new insulation coating they''ve developed?" However, Professor Elinor just blew his beard and glared: "That''s ridiculous!" He reached out and flicked the information hard, making a crisp snapping sound: "Have you ever seen any coating that can increase heat resistance by 100C in one go?" "If there is such a thing, why should we study those alloy materials and active cooling technology?" Facing the furious old professor, Norris also realized that his idea just now was a bit outrageous: "Then...it is also possible that there are some hidden dangers that have not been resolved before M88-2, so in order to ensure reliability, the temperature in front of the turbine has been specially reduced." "The problem was solved on the SeA650...or because the working environment of the passenger aircraft engine is relatively mild, the problem no longer exists, and the original design was restored..." This explanation is obviously much more reasonable than the previous one. Even Elinor lowered his head and pondered, seeming to be convinced. But after about half a minute, he still shook his head: "The M88 did reduce its working performance to ensure stability, but this was mainly a problem with the compressor. I knew some of the parameters of its prototype back then. The combustion chamber outlet temperature...followed by the two models M88-1 and M88-2. The difference is not big. At this time, the situation was a bit frozen. "Forget it, go back to the office first, I have to take a good look at this thing..." After some fruitless thinking, Professor Elinor took another step. I completely forgot that I almost said "I don''t think this thing is of much use" less than five minutes ago... Anyway, it smells really good Soon, the two arrived at the office on the top floor of the headquarters. Elinor took off his suit jacket, and without even having time to make a cup of coffee, he hurriedly sat back behind the desk and reopened the information in his hands to study. but No clues were found. After all, it''s just a technical manual. Liu Yongquan handed over almost all the technical information to Snecma, but he only had to teach it step by step. The latter had not yet fully grasped the design theory of the M88-3 engine. Rolls-Royce''s level is certainly higher than Dassault''s, but it''s impossible to see through everything based on just an ambiguous piece of information. Moreover, there are only a few ways to increase the temperature in front of the vortex. Most of them are unlikely to bring about 100C room for improvement. Although the effect of replacing the turbine base material is obvious, the base material affects the whole body, affecting not only the high temperature resistance, but also other mechanical properties. It is almost necessary to recalculate the combustion chamber and turbine parts. It is impossible to It can be dealt with in a few months. Then there''s the new active cooling technology. For example, when film cooling was first applied, it raised the temperature in front of the turbine to a whole new level. If the new impact cooling technology is put into use, it can probably achieve similar results. It will not affect the basic design of the engine itself, so the workload is relatively limited and it is not an exaggeration to complete it within one year. But the problem is that neither France nor China seems to have conducted in-depth research in this area. In addition, impingement cooling requires 10% or even a larger proportion of the air provided by the compressor to be used for cooling rather than propulsion, which in principle will lead to huge thrust losses. It may even be possible to completely offset the increase in thrust brought about by the increase in temperature in front of the turbine... However, the thrust performance of SeA650 is quite normal, and it does not seem like it has lost a lot of power gas... Anyway, it''s stuck. Instead, Norris, who had been sitting on the sofa and thinking, suddenly had a flash of inspiration: "Professor, I suddenly remembered that Dr. Lapworth mentioned a research result before. By modifying the internal channel design of the air film hole, the temperature resistance performance can be improved by about 80-100..." Liya Lapworth, director of computational science at Rolls-Royce and head of the Computational Science Laboratory. In addition to being responsible for connecting with various ongoing project teams and completing their computing needs, this laboratory is also responsible for certain cutting-edge technology research and development tasks. "Is there such a thing?" Elinor sat up straight at that time: "But...I''ve never heard of it before?" As an extremely mature technology, it is normal for the effect of air film cooling to improve as the research becomes more in-depth. But to improve so much at once...it''s a little mind-boggling. And if such results really come out, the impact should be considerable. Norris shrugged: Because technology is being put on hold. Hearing this answer, Elinor was very surprised: "Why?" Although the basic principles of air film cooling and impact cooling are similar, the former uses cooling air relatively normally and basically does not have particularly fatal flaws. Norris sighed softly: "Originally, it was planned to be used on the Trent 900 engine, which could reduce fuel consumption by about 5.5%, thus defeating the GP7200... But after the technology was actually implemented, it was discovered that the complexity of both design and manufacturing was too high... " Both the Trent 900 and the GP7200 are intended to power the Airbus A380, a superjumbo currently under development. As usual, both models will be included in the A380 supplier list as options to avoid putting eggs in one basket. Having said that, if any model is significantly better than the other, users are not stupid and will definitely prefer the option with better performance. In order to simplify logistics, many airlines will try to unify the engine brands in their fleets as much as possible. Therefore, if we can win the competition with the GP7200, the benefits will be more than just one or two thousand engines for hundreds of A380s... "So..." Professor Elinor was silent for a while, and then slowly said: "If SeA650 can guarantee delivery time and delivery volume, it means that the French... uh... or the Chinese people are very likely to have mastered the technology you mentioned... or similar technology?" This question made Norris unable to react for a while. After being stunned for a moment, he realized that the other party had already accepted his speculation. This time it made him feel less confident. "No...Professor, I''m just speculating. I''m not saying they must..." But before he finished speaking, he was interrupted by Elinor: "But at least for now, there is no other possibility, right?" "hiss" Norris was speechless. Obviously, Elinor''s logic is sound. When all other possibilities are eliminated, the last remaining one can only be regarded as the correct answer for the time being. Elinor closed the brochure in his hand and turned it to the back cover. "I see what is written here...the SeA650 will be displayed as a 1:1 restored full-size model at the European Business Aviation Show in Geneva next week." After a quick glance, he raised his head and looked at Norris: "Hurry up and book your tickets. Let''s go to Switzerland next week..." "Ah?" The latter''s face showed a moment of confusion. At first, he just wanted to find Professor Elinor to analyze this booklet. Why did he suddenly have to go on a business trip in the end? "Don''t be stunned, go and book your tickets!" Looking at Norris who had no reaction, Elinor stretched out his hand and knocked on the table for emphasis: Theres probably something weuhand of course you need over there! (End of chapter) Chapter 1019 Are there any experts? Chapter 1019 Are there any more masters? After sending Norris away, Professor Elinor picked up the book on the table again. However, before he could open it, there was a beeping sound in his trouser pocket. The cell phone alarm rang. Only then did Elinor remember that he had a conference call to hold this afternoon. It''s about a sponsorship from the Department of Defense. It''s about three hours'' drive from Derbyshire to Bedfordshire, where the school is located. If you want to go back to attend the meeting, you have to leave now anyway. Elinor sighed softly, put down the things in his hands again, and stood up to put on his coat. But after taking two steps out, a tangled look appeared on his face. The pace also slowed down... Elinor''s hesitation did not last long. After about two seconds, he took a deep breath, walked back to his desk in three steps, picked up the phone, and dialed the number of his laboratory. "Jane, help me tell the college that I can''t attend the afternoon conference call in person..." "Let''s just say I''m here at Rolls-Royce... uh, solving the problem of the EJ200 engine." "Content of the meeting... Just record the key points for me..." After hanging up the phone, the professor couldn''t help but let out a long sigh of relief. Then he took out a notebook from the drawer next to him and quickly wrote down: An engine with a thrust level of 1.6500kgF has a generating power of up to 25kW, which is unnecessary and the value is high. 2. The total pressure ratio of the engine is different from that of M88-2, and the compressor parameters are suspected to have been adjusted. 3. In fact, after reading the information just now, Professor Elinor''s doubts about the model SeA650 not only did not decrease, but actually increased. If it was an ordinary promotional material, he would most likely think that the content inside was made up by publicity personnel who had no technical knowledge at all. This situation is not uncommon at air shows. But the content of that thing is completely in the style and format of a technical manual, and it is definitely not something that a layman can write. There is also little chance of false advertising. There is a high probability that Snecma really used some special new technology on it, which caused some of the engine''s performance to be very strange from a traditional perspective. This is why he rushed Norris to book tickets and canceled this afternoons conference call Excluding the time on the road, there are only two days left before the opening of the European Business Aviation Show. He needed to quickly organize his thoughts so that he could quickly obtain useful information by making insinuations after arriving at the air show. It must be said that Norris is very efficient. Not only did the entire trip to Geneva be arranged in just one afternoon, but the originally planned duo was even expanded into a delegation. There are more than 20 people in total, including Dr. Leah Lapworth, who was mentioned before, and Tim Purdy, deputy project director of the Trent series engine design team. This scale is a bit outrageous to say the least. You know, Rolls-Royce''s UK headquarters doesn''t even have business jet-related business. So Professor Elinor quickly realized that something was wrong and immediately refused to enter the exhibition site with the rest of the people. Sure enough, it was just as he feared. When such a group of people arrived at the Geneva Air Show as "visitors", the first thought of most people was - Is there something unexpected happening to Rolls-Royce Germany, which was originally responsible for the business jet business? But looking at the BR series engine booth over there where everything was normal, it didnt look like there was a problem... However, the purpose of Luo Luo''s trip is quite clear. They didn''t even glance at the situation of their German branch, but rushed straight into Dassault''s exhibition area. Snecma''s business in the field of business aircraft has just started. Apart from the SeA650 this time, only its Arriel series turboshaft engines will be installed on some business helicopters. Naturally, they will not be able to do so. A specially designated area was created. Moreover, even after joining forces with Dassault, the entire area is still a little empty compared to several other nearby companies. The main products are only a real Falcon 900EX and the large-scale Falcon 8Z model. Fortunately, thanks to Dassault''s strong promotion in the past half year, Falcon 8Z is quite famous, and there are also some interested visitors gathered around it, so it will not be completely ignored. But this is not a bad thing for the Luoluo team. With almost no effort, they squeezed through the crowd and came to the goal of their trip, which was the full-size model of the SeA650 engine. There are more than 20 people, which is already very eye-catching in this exhibition area. Therefore, two Snecma staff members soon came over to take a look. The original intention was just to see if there were any business opportunities and send out some promotional materials. It doesnt matter what it turns out to be There is no such thing as a public open day at a business aviation show. So everyone will wear a badge after entering the door. Indicate the work unit, personnel nature, photo and name. But the information on the badges of the group in front of me clearly shows... Are they from England? Or Rolls-Royce? Isn''t this a weasel giving New Year greetings to a chicken? Shopping malls are like battlefields. Who said smashing an opponent''s engine model isn''t called a business war? Don''t worry about business or not, just say war or not, right? As a result, the air at the scene instantly became anxious. One of them quickly asked his companion to go back to the on-site supervisor, while he stayed behind to deal with the "enemy". There was even a hint of farewell to Yi Shuihan in his tone. At this time, everyone on Luoluo''s side had not yet realized how much he looked like he was here to cause trouble. Therefore, after seeing a person who looked like a staff member coming this way, the leader, Tim Purdy, immediately said hello in what he thought was a friendly manner, and then prepared to shake hands with the person. "Hello, sir, I am..." As a result, before he even announced his name, he found that the Frenchman opposite had already put on a defensive posture. I had to put my hands down in embarrassment. For a moment, the world seemed to become quiet... In short, although the misunderstanding was finally resolved, Bodi and his team were unable to learn any very useful information. Instead, Professor Elinor came to the Dassault exhibition area in a low-key manner later. And they happened to meet Liu Yongquan and Ian Vista who had calmed down the situation and were about to go backstage to blow on the air conditioner. "Hello, my name is Roger Elinor, a professor at Cranfield University and a technical consultant at BAE Systems..." Elinor said as he took out the promotional materials and of course the notebook from his backpack. Liu Yongquan and Vista looked at each other. The name Roger Eleanor is somewhat famous in Europe and even in the aviation industry around the world. At least Liu Yongquan has read the papers published by the other party. However, the wonderful thing about Elinor''s self-introduction is that both identities are true and full of hints. BAE Systems'' commercial aircraft division''s flagship product is the famous Hawker Beechcraft series of business jets. Although it was sold to Raytheon due to operating difficulties in the past few years, there is no guarantee that it will not make a comeback. Moreover, even if this layer is not considered, BAE, as a well-known defense equipment supplier in the NATO system, also sells a large number of special aircraft modification solutions for business jet platforms. Anyway, he looks like a serious visitor In fact, the issues Vesta wanted to know did not involve any trade secrets, and had nothing to do with technical details. The reason why Luo Luo''s group failed just now was because the atmosphere was too tense. Now he has a Cranfield University badge and is throwing out bait as a prospect. Then the next thing will be a matter of course. After some simple greetings, Elinor no longer concealed his purpose: "Dr. Vesta, Dr. Liu, I accidentally saw the SeA650 engine promotional materials you put out before, and I am very interested in the performance of this model..." He said shaking the thick booklet in his hand. The two people on the opposite side also showed a posture of asking casually. "I noticed that you have calibrated the power generation power of the SeA650 engine at 25kW. Obviously this is a very large number for a model with a thrust of 6.5 tons." Elinor started by asking a question that he thought was relatively plain: "So I want to know, did your company specifically consider other uses when you first formulated the plan? After all, generally speaking, business jets cannot use a total of 50kW of electricity from two units..." Liu Yongquan knew English, but after all, he rarely used it, so he was overtaken by Vesta who was the first to react: "That''s not true." The latter replied with a smile: "During the design process, we discovered that the available effective power of the core engine exceeded the original estimate, and this part of the effective power can be converted into additional thrust or additional power." "Later we considered that 6.5 tons of thrust has fully met the design calibration. In fact, there is no need to go higher. Although the power generation may not be used right now, with the deepening of electrification, there is still much potential in the future..." "Furthermore, if there are additional needs such as special aircraft modifications, a platform using the SeA650 engine will no longer need to install additional power supply equipment, saving modification costs... so the latter was chosen." This last sentence was obviously aimed at his identity as a consultant to BAE Systems. In fact, logically speaking, this problem ends here. Professor Elinor has even made a mental evaluation that "the performance improvement of the core machine has led to deviations in performance calibration." However, at this moment, Liu Yongquan next to him suddenly said: As for the source of this part of the available effective power, we have applied the latest non-contact magnetic bearing technology, which has reduced the waste power generated by the friction of the original rotor bearing, and also greatly extended the maintenance cycle of the compressor rotor No. 1 support point. "???" The pen in Elinor''s hand stopped: "Magnetic bearings?" (End of chapter) Chapter 1020 I was obviously the one who came first Chapter 1020 It was obviously me who came first Liu Yongquan''s addition made both Vista and Elinor stunned at the same time. The former was trying to show off but failed in showing off. It was simply a bit embarrassing of being slapped in the face - Replacing the rotor bearings with non-contact magnetic bearings can indeed increase the effective work, but this part of the effective work cannot be directly converted into thrust. Generating electricity is pretty much the only option. Of course, if I have to say it, with this part of power, the power calibration of the genuine motor can be reduced, which can indeed squeeze out more potential for increased thrust. But it''s not like what he just explained. Fortunately, at the moment, no one pays attention to this little detail. Because the latter didn''t expect that the question he asked casually as a foreshadowing would lead to such a big and cruel thing. Magnetic bearings are nothing new to Elinor, who is British. This thing was first researched by Newcastle University. The actual product is also the first to be put on the market by S2M, a subsidiary of the British Edwards Group. Even the technical route of combining magnetic bearings and permanent magnet fault-tolerant motors to build a permanent magnet fault-tolerant power generation system based on H-bridge was first promoted by Lockheed Martin in the JSF project, but the concept itself It was proposed by British Aerospace Corporation, one of the predecessors of BAE Systems. But what happened? Why did the French suddenly use it? Whether its a product or a concept, I obviously came first, right? You know, the biggest difficulty with this technology is not actually the hardware, but that magnetic bearings are a brand-new product and no one knows how to calibrate them Although this thing can basically be considered to have no friction, if you want to use it to generate electricity, the act of cutting the magnetic coil itself will generate resistance. In fact, in the earliest design concepts, this resistance was even used as a tool to efficiently regulate engine speed. Truly killing several birds with one stone. However, the problem is that once there is a problem with the electromagnetic control, it will affect the whole body. Specifically, fluctuations in power consumption may lead to fluctuations in power generation, which may further lead to resistance fluctuations, which may further lead to rotational speed fluctuations, which may then lead to rotational stalls. The final development is surge... In short, the permanent magnet fault-tolerant power generation system requires an optimal current control method to achieve fault-tolerant control. But it becomes a huge problem to make the control strategy effective in a quite wide operating range. The installation and application of the entire set of technologies happens to be stuck here. Even according to the most optimistic expectations of Lockheed Martin and Pratt & Whitney, JSF will not be able to solve the reliability problem of the permanent magnet fault-tolerant power generation system and install it until 2008. In fact, few people who know the inside story believe this timetable. result. in Geneva. In this business aviation show that seems to have no bright spots, someone actually came up with a solution? "Professor Elinor, the brochure in your hand was modified based on the maintenance manual we previously modified. The content is actually not comprehensive..." As if sensing the other party''s doubts, Liu Yongquan took out another slightly thinner booklet with a different cover from nowhere: "This is the second version that has just been revised. It has deleted some operational details that are of little significance to non-maintenance personnel, and added descriptions of several key new technologies on our products... Although it is not very detailed, I Thinking is enough. Elinor''s mind still hadn''t fully recovered at this time, so he took it in his hand somewhat numbly, and then opened it. "About page ten is about the magnetic bearings and permanent magnet fault-tolerant power generation system..." Liu Yongquan reminded thoughtfully. Sure enough, a few pictures and schematics were used to explain the performance of this set of things and its advantages over traditional solutions in just a few words. It is also specifically noted that in order to ensure reliability, SeA650 is equipped with a mechanical backup at the first support point. Once the magnetic bearing fails, the rotor bearing, which was originally in a non-contact state, will enter work. Of course, this is certainly not normal. But the emergency mode can also ensure that the aircraft engine operates at a lower speed for at least two hours. In short, from a performance perspective, there are no flaws at all. but As for promotional materials, thats all the content is. It''s impossible for people to write down the specific design and calibration for you. So Elinor read it over and over several times, but still felt a little unsatisfied. But it was impossible for him to ask directly. The expression on his face was twisted. During this twisting process, Elinor suddenly realized that he seemed to have a fixed mindset just now. Regarding content related to magnetic bearings, the Chinese people in front of me have always been communicating with myself. Dr. Vesta on Snecma''s side remained invisible throughout the entire process... This seems to indicate that at least the technology of magnetic bearings should have a greater relationship with Chinese partners. It is even possible that it was developed by the Chinese. at the same time. Seeing Elinor''s performance, Liu Yongquan couldn''t help but smile as if his plan had succeeded - In fact, after he failed to answer the first question just now, he quickly observed a detail about Elinor. Although the personal information written on the latter''s badge was flawless, the ballpoint pen in his hand was the same style as the one inserted in the pockets of the Rolls-Royce group just now. Therefore, Liu Yongquan reasonably inferred that this Roger Elinor actually came here on behalf of Rolls-Royce Company. It''s just a different strategy. Or maybe it''s a red face among red and black faces. However, Liu Yongquan did not reveal the identity of the other party. No need. First, the question the other party asked was not a particularly sensitive question. After Falcon Z is delivered to users, it will be clear at a glance which technologies you used in which parts. There is neither the possibility nor the necessity of confidentiality. Secondly... The relationship between the French and the British is not good, what does it have to do with him as a Chinese? Aerodynamics and Snecma are partners, and rightly so. But so is the opposite Rolls-Royce! The Ciro Group is still leaving it there. That''s why he chose to take the initiative and directly point out the techniques used. He also gave Eleanor a copy of the brochure that had just been finalized and he had not brought a few copies so that he could understand it clearly. As for the specific design method you want to know... Its not impossible. Just need to pay more. Need to add projects. Of course, Rolls-Royce has an absolute dominant position in the design and manufacturing of aerospace engines, especially large-bypass-ratio aerospace engines. It may not be that easy to get them to agree to joint research and development. Then the next best thing is to be a solution or subsystem supplier. Not only can we use Rolls-Royce''s brand name to make China''s aviation products famous. We can also gain some R&D experience in aviation engines with large bypass ratios. More importantly, it can further deepen the close ties between China and Europe in the field of aviation technology. It is also one of the most effective means of combating embargoes and sanctions. Moreover, the highlights in that booklet are far more than that... Sure enough, after being convinced that he could not find any new useful information, Professor Elinor continued to read the following contents half reluctantly and half curiously. And soon, his core doubt, that is, where the strange 100C temperature rise came from, was answered. "The SeA650 engine uses mature and reliable film cooling technology, combined with a newly developed three-dimensional pore structure and variable interface aperture, to increase the temperature in front of the turbine by 93.7C without affecting its life..." "Note that since the internal structure of the three-dimensional pores is more complex than the traditional air film pores, mid-term maintenance must be performed by a designated supplier..." As usual, below the concise description are a few photos and diagrams, as well as a series of test results. There arent many details, but it can be seen that the cross-section of the air film hole is basket-shaped, rather than the traditional round, oval or fan-shaped. This fits exactly with the characteristics previously described by Dr. Norris and Dr. Lapworth. Of course, the specific design parameters will definitely differ. But the technical solution I''m afraid it''s really the same. "S" Professor Elinor considers himself to be well-educated, but at this time it is inevitable that he would like to use words starting with a certain F or a certain S to exhale fragrance in his mouth - Come again? Although he couldn''t guarantee who was the first to study the air film hole, it was no different in essence from the magnetic bearing just now. Our own side blew the whistle on the PPT. The result was finally realized quietly... This is a bit embarrassing after all... (End of chapter) Chapter 1021 Let China participate in the Trent 900 p Chapter 1021 Let China participate in the Trent 900 project? Before leaving, Elinor specifically asked if he could take away the brochure in his hand. In fact, because time is too tight and the printing quantity is insufficient, Dassault and Snecma have said before that in principle they will not distribute promotional materials to exhibitors on site. Otherwise, you may lose everything in your hands in the end. If you really need it, you can leave your contact information and the publicity department will send an electronic version. Or you can mail the hard copy from Paris later. However, it is well known. In principle, if it is not possible, it is equivalent to actually being able to do it. Therefore, Liu Yongquan nodded. He does not think that a new engine model like the SeA650, which has not yet been installed on its first flight, can win many customers at this air show. But Luo Luo''s interest in several specific technologies is real. Although even if the other party cooperates with Huaxia through Xiluo Company, it will definitely choose Haofa Group, which is close to the water, as the cooperation partner, and it will not directly benefit Shengjing. However, Liu Yongquan''s standing has improved a lot as he has been working on projects with Chang Haonan over the years - Why are Shengjing and Haojing not all brothers of the same group? Furthermore, Liu Yongquan is very familiar with the contents of the manual, so he won''t lose anything even if he gives it out... It wasn''t until after watching Elinor leave and the two of them returned to the air-conditioned room backstage that Vesta said with some hindsight: "Liu...I think there''s something wrong with that Roger Elinor just now." Liu Yongquan rolled his eyes slightly and thought to himself, why haven''t you come to your senses yet... However, on the surface, he still agreed with the other partys statement: "Being British...it''s normal for you to feel something is wrong with him." There is generally nothing wrong with criticizing the British in front of the French. Sure enough, Vesta nodded immediately and then continued his analysis: "You are right...but what I just meant is that I feel that he may not only have the two identities on the surface." But Liu Yongquan is not prepared to continue to dwell on this topic. After all, strictly speaking, he was collaborating with the British under the eyes of the French. It would not be a good idea if Vesta had to figure this out. "It''s not important..." He shook his head: "No matter who he is, since he appears at the air show, he may be our potential customer..." "Besides, to take a step back, even if he had any additional purpose, in the end he just took away a promotional material from our hands that will be released to the world in the near future. The only loss is nothing more than the two of us. It took a lot of talking..." "And to be honest, compared to the SeA650 which has not yet made its first flight, I think you should consider how to cooperate with Dassault to fully utilize the performance of the M88-3..." After a long discussion, Vista''s attention was finally diverted to other places. On the other side, Professor Elinor went around in circles for several days and finally got the information he wanted. Although it did not directly help solve the structural strength problem of EJ200 as he expected, there are still gains. Therefore, after leaving the exhibition site, he returned to the hotel where the delegation stayed as quickly as possible. At this time, the rest of Luoluo''s people were gathering in a suite, feeling brooding about the failure just now. But I can''t think of any way to save it. Then, suddenly the doorbell rang. After opening the door, he saw Eleanor walking in, dressed casually. As the person who had dealt with the other party the most, Luke Norris was the first to react to what happened. "Professor, do you have any results there?" "certainly." Eleanor was radiant. He went straight to an empty sofa and sat down. Then he crossed his legs and started pointing: "Actually, I could handle this kind of thing myself, but you had to bring in so many people, especially wearing the same suit, for fear that others wouldn''t know that these twenty-some people are together..." "Originally, we didn''t want to We are engaging in espionage activities. We just want to know some propaganda content in advance. If you do this, the situation will become more complicated..." As a major contributor to this operation, Eleanor spent about five minutes fully criticizing this behavior of creating difficulties without difficulty. Although the rest of the people were not completely convinced, after all, someone else had wiped their butts this time, so they had no choice but to do it... Fortunately, after the professor vented his anger, he returned to the topic: "The first thing we all care about is the combustion chamber outlet temperature..." He said, opening the notebook in his hand. When others heard the keyword, they cheered up again. According to the latest information provided by Snecma, their active cooling design is indeed close to the new air film holes previously developed by Dr. Lapworth for the Trent 900 engine. However, to be on the safe side, it is up to the doctor to make his or her own judgment. " Elinor turned the brochure to the pages related to the turbine part, then handed it to Norris next to him, gesturing for everyone to take turns to read it. Soon, the book was in Lapworth''s hands. She narrowed her eyes slightly and moved closer to take a closer look. After a moment, Lapworth nodded: "Indeed... although the specific parameters may be different, the design ideas are exactly the same." "Without changing the fundamental heat transfer method, we use a multi-layer, three-dimensional air film hole channel design, and simultaneously utilize convection and conduction effects to form a more effective heat insulation film on the blade surface..." "But the biggest problem is that although it can be prepared in the laboratory, after entering the factory environment, the yield rate of this kind of air film holes is frighteningly low... And there are dozens of holes drilled on a turbine blade, and if there is a problem with one of them, it will Turned into waste Tim Bodie, who hadn''t yet had his turn to read the contents of the brochure, frowned slightly: "In other words, the French have solved the manufacturing process of this air film hole and can achieve industrial mass production?" There was a hint of surprise in his tone. But his expression was quite calm. After all, France can be regarded as an "old industrial power" in the traditional sense. Although its level in the field of overall aerospace design is a bit hard to describe, it is not weak in terms of processing and production alone. In fact, Bodi''s mind has already opened up. Without waiting for Elinor to answer, he immediately suggested: "If this is the case, then we can completely restore the original design of the Trent 900 and increase the temperature in front of the turbine, so that the GP7200 will not take advantage of the fuel consumption..." "At worst, we can just hand over the turbine production to the French. Airbus is also led by them anyway..." GP7200, a model built by Engine Alliance with special skills. The company itself may not be particularly famous. But its two parent companies are General Electric and Pratt & Whitney. One of the three major aerospace engine suppliers. In other words, the engine selection of the Airbus A380 is actually based on the North American engine versus the European engine. Originally, the GP7200''s trump card was quietness, while the Trent 900''s advantage was fuel economy. Logically speaking, airlines must prefer the latter. However, after realizing that the turbine part originally designed was difficult to put into mass production, Rolls-Royce had no choice but to return to the traditional film cooling solution and reduce the temperature in front of the turbine accordingly. This is very embarrassing... What lies before us is obviously an excellent opportunity for a comeback. "I don''t have any objection to this idea... Of course, the Trent 900 model doesn''t belong to me either." Speaking of this, Eleanor showed a half-smiling expression: "However... the production of this air film hole may not have been completed by the French..." "Um?" As soon as he finished speaking, more than twenty eyes looked at him almost at the same time. "If my guess is correct, then the turbine of the SeA650 engine...at least the processing of the turbine film hole, is probably completed by China..." (End of chapter) Chapter 1022 Doesn’t this highlight the role of Ciro Chapter 1022: Doesnt this highlight the role of Siro Company? The news that Eleanor suddenly broke out was indeed completely beyond everyone''s psychological expectations. There was a commotion in the room almost immediately. The connection between Rolls-Royce and China in aviation technology actually started a long time ago. Even during the years when the Spey project was stalled, there was no interruption. This also includes film cooling. In fact, Rolls-Royce even provided several projects for the first research group at Hokyong University of Technology to study active cooling technology for aircraft engines. Although it was only marginal research, for China, which was still in its infancy and faced with financial constraints, it was definitely a timely help. Later, the after-sales business of products exported to China was directly placed locally. And it all pays off Relatively low after-sales costs and stable parts supply channels make China Airlines more likely to choose British products rather than American or Canadian products under the same circumstances. Especially in the past five years, the market share has skyrocketed. It''s a pity that they failed to get a share of the pie at the 737 and A320 levels, which affected their future growth potential. But no matter what, at least my mouth is full of food now. Luo Luo''s mentality has always been: No one understands the Chinese aviation market better than me. Of course, China''s progress in the field of aviation technology in recent years can be seen by those in the industry as long as they are not blind. But whether judging from the information currently available or the external performance of the other party, this progress is mainly reflected in the fields of project management and engineering design. In terms of manufacturing, considering that China still imports a lot of aviation base materials, components and processing equipment every year, it is generally believed that the speed of progress should be relatively slow. This is also in line with the general industrial development logic. The result is now... They found that they didnt seem to understand that much either. "Professor, regarding this... was it directly stated by Snecma?" The corners of Tim Bodie''s mouth that were raised just now drooped, and his expression became serious. On the one hand, he felt a bit unreasonable. On the other hand, as the deputy director of the entire Trent series of engines, he must also consider everything. If Huaxia components are really used on the Trent 900, it will be smooth sailing. But if something unexpected happens, even if the accident is not caused by production quality problems, it will definitely face a huge impact from public opinion. "no." Elinor decisively gave a negative answer: "Actually, I didn''t ask just now." "That" Bodi didn''t expect that the other party would deny it so simply. But Elinor did not give him a chance to question, but immediately explained: "Look carefully. In that booklet, there is a line of small words marked on the last page of the turbine section." Coincidentally, the brochure also reached Bodi at this time. Following Elinor''s instructions, he quickly discovered the line: "Due to the complex internal structure of the air film hole,... it will be handed over to a designated supplier for mid-term maintenance?" After hearing this statement, the voices of discussion and questioning gradually subsided. We are all insiders and can hear the hidden meaning - SeA650 itself is a jointly developed model, but considering the convenience of promotion, in the early stage of publicity, both the banner and the promotional channels used were Snecma. Including future guarantee services for European users, they will definitely be contacted directly by the French. In order to prevent certain litigants from using the accusation of false propaganda to engage in legal blackmail, this disclaimer was added. It said that it is another company that actually provides after-sales service for this part, and we at Snecma only transfer it on our behalf. There will definitely be relevant clauses in the contract in the future. Since Snecma can''t even handle maintenance and guarantees, let alone production and processing... It can only be the Chinese who are responsible. For a while, everyone either lowered their heads in thought, stared blankly, or paced back and forth... All in all they fell silent. Especially Purdy and Lapworth. For a major model like the Trent 900, the final decision must be made by the management team as a whole and then submitted to the board of directors for signature and approval. However, as project executives and core technical personnel, the two of them undoubtedly have a high say in this. Of course, it also means taking reciprocal responsibilities. "professor." After struggling to no avail, Bodi turned to look at Elinor who was watching the excitement on the sofa: "SeA650 engine, how far is it progressing now?" "I mean... when will it be ready for users to use?" The latter raised his head slightly and recalled the conversation at the exhibition just now: "If you are referring to delivery to airlines together with the Falcon 8Z, that would have to wait until early 2004... Of course, this is just their statement." "Let me estimate...probably before 2005." Professor Elinor followed the "common sense" in Europe and made some allowances based on the delivery time given by Liu Yongquan. Then, perhaps in order to increase the credibility of his statement, he added: "After all, their aircraft engine has a lot of new technologies. In addition to the three-dimensional special-shaped air film hole, there is also a permanent magnet fault-tolerant power generation system that replaces the traditional rotor bearing..." Lapworth on the other side is not engaged in the overall design of aircraft engines, and did not give much response to this permanent magnet fault-tolerant power generation system. But Bodie stopped abruptly, with a look of shock that was almost exactly the same as Elinor''s before. However, the use of magnetic bearings was not considered in the Trent 900 from the beginning, and it is impossible to make major changes to the overall design at this juncture. So he just opened his mouth, but in the end he did not change the topic, but began to silently calculate the development cycles of the Trent 900 and A380. In any case, lets solve the most important thing at hand first. But the calculation results are not very optimistic: "I originally thought that after the SeA650 is delivered to users, I will observe it for a year or two and make sure there are no fatal reliability issues before making a decision." Having said this, he sighed with regret: "But the A380 plan is to start test flights in 2005. If we want to catch up with the prototype competition stage, there is not enough time anyway..." "Can you consider using the current engine for test flights first, and then replace it when the mass-produced model is delivered..." Someone comes up with a new idea. "It''s hard." Bodi immediately shook his head: "Actually, there is no technical problem, but the temporary upgrade will definitely affect the psychology of customers, and considering that testing is required in the middle, it will also delay the delivery time of the whole machine. In the end, it will only make more people choose GP7200." "If a model suffers an obvious loss in the first batch of orders, based on past experience, it will be difficult to turn around unless it waits for a new generation of products." Seeing that the discussion could not produce any results in a short period of time, Lapworth, who had not expressed his position just now, decided to do the next best thing: "Now, the Trent 900 at least has the possibility to outperform its competitors, so anyway, I think we should contact China first, purchase a batch of sample parts, and at least bring them back for testing first." Among all people, as the developer of new film cooling technology, he undoubtedly has the most positive attitude: "If the component-level test can be passed and the installation test is carried out later, the resistance from the board of directors will be reduced." "It''s not entirely a question of purchasing volume..." Bodi said helplessly: "Since you are looking for someone else to produce it, you must at least provide some parameters related to the turbine design and the base material. So even if it is a sample piece, you have to prove that it is necessary before the superiors agree to use the data. Give it out..." In fact, although he didn''t say it explicitly, this is a matter of prejudice - Even for professional technicians like them, China''s development speed in the aviation field is somewhat difficult to understand and accept. Not to mention the people above who make the decisions. Therefore, even if you are looking for someone to do the work, "finding someone from France to do it for you" is more acceptable than "finding someone from China to do it for you". The reason why he wanted to observe the situation of SeA650 for two years just now was based on this consideration. At that time, we can say that the reliability of Huaxia products has been verified on other models. Now there is no second option before us. If we dont choose, we have to choose this. It''s a pity that time waits for no one. "If you want me to say..." Suddenly, a weak voice came from the corner of the room, which immediately attracted everyone''s attention. It''s Luke Norris. It is said that he actually belongs to the middle level of Luoluo Group, but among this group of people, he does seem to have no status... Therefore, being stared at by so many eyes almost made him forget how to breathe. "Uh... I want to say that if there is only a small amount of samples, maybe we can use Ciro Company to reduce the sensitivity of this matter..." "Ciro Company..." There was a trace of confusion in Lapworth''s eyes: "Aren''t they only responsible for maintenance, training and liaison?" "That''s true in the beginning." Norris replied: "But I just remembered that they submitted a report two years ago, which mentioned the relationship between the Airbus A380 engine selection issue and the Chinese market..." "Ah?" Purdy and Lapworth looked at each other. Logically speaking, if this kind of report is really important, then they both should have read it. Norris went on to explain: "I have read that report. It has nothing to do with technology or the Trent 900 engine itself. In fact, it is a roundabout way to expand the business scope of Ciro Company, especially to increase the R&D and production functions, so it was reported directly to the administrative management. there" Lapworth immediately rolled his eyes: "What a joke, they can develop..." He stopped abruptly mid-sentence. Ciro Company may indeed not be able to develop anything. But the Chinese can. Just like Norris said just now, as long as the Ciro company is passed through, and the executives on the board of directors don''t understand technology, who can tell what''s going on? "So...what was your response then?" Bodi had obviously figured this out and quickly asked. "We didn''t think they could learn anything at the time." Norris shrugged: "But the Chinese market is too important, and it is not good to refuse it completely, so we have symbolically arranged a few R&D positions, as well as tens of thousands of pounds of funding per year, so that they can engage in technical cooperation in name..." (End of chapter) Chapter 1023 People are sitting at home, life comes f Chapter 1023: People sit at home, life comes from heaven Tens of thousands of pounds per year, this investment is significant for aerospace research... Not even a drop in the bucket. At best, it''s equivalent to a sneeze. Even if Mr. Chang was brought here from China, he would have to say that I can''t do the job. So in fact, no one expects Ciro Company to actually use the money to conduct scientific research. The actual use is closer to public relations funds Just find a few influential people in China to cooperate, do some feasibility reports or market research, send the money out, and treat it as a relationship... At the beginning of the 21st century, the exchange rate of the pound was still relatively strong. Although it is not much when converted into RMB, it is absolutely clean white money after all, which is still somewhat attractive. Therefore, Norris''s answer is a mixed blessing for everyone. Worryingly, this situation is a bit embarrassing now Yes, the senior management of the group do not understand aviation development. But they understand financial statements. If you say that this technology was jointly developed by Ciro Company and Huaxia, then when others look at it, they will find that tens of thousands of pounds per year can produce such a big job. When I apply for project funds in the future, it will be difficult to ask for figures in the tens of millions or hundreds of millions. Who else understands the urinary nature of capitalists better than the British? If you overfulfill the task today, it will directly become a KPI tomorrow. As for joy After all, some operating space was still reserved and the road was not completely blocked. "Who is the person in charge of Siro Company?" Tim Purdy asked. "George Breen, and Adam Whittle." This kind of thing is more familiar to Norris, who is also a middle-level administrative manager: "Among them, Brin once served as the representative of the office in Brazil. As for Whittle, he seems to be an engineer..." "I have an impression of this guy." Lapworth suddenly interjected: "When the RB211-535E4 was upgraded, he seemed to be in charge of the fuel and oil system. Later, something happened to this part during testing, and the machine almost crashed and everyone was killed..." Clearly, Whittle impressed him for more than just anything honorable. "Well" Norris found the right opportunity and quickly interrupted this suspected behavior of settling old scores: "In short...he was first sent to China because China introduced our SPEI MK202 engine..." At this moment, everyone suddenly showed expressions of realization He was sent there. But in the blink of an eye, I couldn''t help but feel a little emotional. Just less than ten years ago, the so-called "technical exchange" between China and the United Kingdom consisted of buying completely outdated and even second-hand equipment and technology from the latter. Now, the situation has reversed. A group of Britain''s top aerospace engineers are considering how to quietly cooperate with the Chinese to defeat their opponents from North America. Under the mixed emotions, the situation turned out to be a bit cold. "well-" In the end, thousands of words converged into a sigh from Lapworth: "Anyway, let''s contact Siro Company first..." "If Sibei''s technology transfer and improvement projects had not been completed, we might have been able to find some financial loopholes..." As the discussion came to an end, everyone left the suite that belonged to Bodi one after another. "Professor, please stay." Bodie called from behind and stopped Professor Elinor who was packing his things and about to get up. The latter stopped what he was doing and raised his head, with some questions in his eyes. "I remember you mentioned just now that the SeA650 is equipped with a permanent magnet fault-tolerant power generation system..." Bodi said and sat on another sofa next to him: "Are you sure it''s the technology we know..." "Judging from their description, it should be so." Elinor nodded. Then without waiting for the other party to speak again, he said bluntly: "But if you want to acquire this technology through pure cooperation or introduction, I can only be pessimistic." Bodi was not embarrassed when his thoughts were seen through, and just asked: "Why?" Elinor smiled, obviously very confident in his judgment: "The Chinese should have no obstacles to technology transfer, or at least cooperation... But are you sure the Americans are willing to use Chinese subsystems in their air force equipment?" However, Bodi''s reaction was a sneer: "Heh... just like before, can''t we just not let the Americans know?" Although Elinor did not explicitly state the source of this technology at the beginning, he had actually already guessed it. So I didnt feel particularly shocked at this meeting. Instead, I directly drew inferences from one example: "Just say we developed it and then outsourced it... Anyway, Lockheed Martin and Pratt & Whitney are already so busy with the F35 and F135 that they don''t care about these details..." In one sentence, Professor Eleanor of the Classical School would be incapable of doing anything. He choked for a long time, not thinking about what he should say at this time. Finally, I had to scratch my head: "Then if that''s the case...you can really give it a try..." "But I have to remind you that the rotor support system is very important in aviation development. If you want to entrust others to develop it, you have to hand over part of the F135 data..." Although Bodi showed no fear just now, he couldn''t help but hesitate a little after hearing these words. Both business and technical issues are easy to discuss. But this may involve security aspects... The Americans'' long-arm jurisdiction is quite scary. Especially since he is still in the UK. It''s even scarier. "I''d better think about it again..." The other side. When the air show ended and Liu Yongquan ended his entire trip and returned to China, it was already three days later. The harvest from this business trip can be said to be fruitful. Therefore, he didn''t even care about rest and jet lag. After getting off the plane, he went straight to the headquarters of the Aviation Power Group. In fact, if he came back two days earlier, he wouldn''t even be able to see Chang Haonan The latter had just returned to the capital from the testing site in western Mongolia the previous afternoon, which also happened to be the first day of rework... "Old Liu?" When Chang Haonan came back from lunch, he unexpectedly saw the dusty Liu Yongquan at the door of the office: "Didn''t you just come back from France? You don''t need to be so anxious about your business trip report. Anyway, SeA650 won''t have any big mistakes..." He said as he took out the key and opened the door. "Uh...I haven''t started organizing the business trip report yet." Liu Yongquan took a deep breath, cheered up and followed Chang Haonan in: "It''s another matter. I think it''s more important, so I''ll tell you in advance." Chang Haonan, who was entering the password, immediately became interested: "Elaborate." He can still trust Liu Yongquan''s judgment ability. "This time when we took a full-scale model of the SeA650 to the European Business Aviation Show, we met a group of engineers from Rolls-Royce." "Although the person didn''t clearly state his purpose of coming, he just pretended to be a normal customer attending the meeting and asked us some questions about engine performance, but I judged that the other person might be interested in some of our technologies..." In fact, this is a pure mistake. Professor Elinor''s personal "interest" in SeA650 is purely out of curiosity as a scientific researcher. As for the plan to cooperate with China, that was an idea that came later, and it has nothing to do with Elinor... "Our technology..." Chang Haonan came to the conclusion after only a short period of thinking: At the level of Rolls-Royce, Im afraid I cant quite appreciate the overall design of the SeA650 "Then the only ones left are the permanent magnet fault-tolerant power generation system and air film cooling technology?" "That''s right." Liu Yongquan''s tired face showed unconcealable excitement: "That person''s stay in those two parts was particularly long and he was asking a lot of questions." "And I think they should be very anxious, and I''m afraid they will contact us soon." "You''re not showing it on purpose, are you?" Chang Haonan was a little suspicious. Mainly because he thought about it and couldn''t remember which of Luo Luo''s projects was in trouble right now - He knew that the EJ200 had hidden flaws, but that was the fault of the earliest structural design. The rest of the models seemed to have been completed step by step in previous lives. "Won''t." Liu Yongquans attitude is very positive: "They actually behaved very normally at the scene, but the questions they asked were all basic design information that the normal civil aviation association would gradually release." "If you are not in a hurry with these things, you can just continue to pay attention to the publicity from Snecma and Dassault. There is no need to go to Switzerland..." This explanation is well-founded and convincing. Chang Haonan dragged his chin with one hand and tapped lightly on the table with the other hand: "If this is the case, then the British will most likely test us through the Ciro Company soon." "However, Comrade Yongquan" He paused for a moment, looked at Liu Yongquan opposite, and at the same time changed into a rather formal tone: "No matter what form or name it takes in the end, if the cooperation is reached, then considering the actual situation of Xiro Company, there is a high probability that it will be handed over to Haofa Group to be actually responsible. For this...you must be mentally prepared." "Hey...Mr. Chang, I still have this overall perspective." Liu Yongquan acted quite indifferent: "The various units under our group are like a rope...cough cough-it means that one will prosper and the other will suffer. No matter who it is handed over to, the whole will benefit." "Besides, even if the project is handed over to Haofa Group, the people who are familiar with these two technologies are still with us..." Chang Haonan was still very satisfied with this statement. The road is widened. Of course, he just nodded on the surface: "After you go back, you really have to select some good seedlings who have participated in the SeA650 project and send them to fly for a while. One or two may even stay there directly." "However, I don''t just ask you to contribute... Luoluo has a very strong family background and has a lot of research projects in hand. Whether it is a turbofan or a turboprop, they are all the most advanced models in their respective categories, so we cooperate with them. It is also an opportunity for us to learn and communicate..." (End of chapter) Chapter 1024 High temperature resistant titanium alum Chapter 1024 High Temperature Resistant Titanium Aluminum Alloy Facts quickly verified Chang Haonan''s conjecture. Just three days later, Ren Bingda, deputy general manager of Haofa Group, went to Beijing in person to report to the group''s leadership. It means that Xiro Company officially sent a letter asking if it can process the complex structure of the air film hole on the turbine component of an aerospace engine. He also brought the original copy of the inquiry letter, as well as the minutes of the meeting with the British representatives George Breen and Adam Whittle. While Zhu Linyu and Lin Zuoming were asking about the situation, he flipped through it from beginning to end. There is no information of particular concern. Not really a surprise. Each party keeps a copy of the meeting minutes. Of course it doesn''t matter to China, but the British side may not be willing to put some important content on paper. After the other two asked several non-technical questions, Chang Haonan finally got the chance and asked: "Manager Ren, has the other party mentioned some specific technical characteristics of this kind of aero-engine turbine assembly?" While speaking, he also slightly adjusted the position of his seat to avoid making the scene too close to the three-chamber trial. "Not during the talks." Ren Bingda shook his head without any hesitation: "But after the conversation, Whittle mentioned to me that there was no need to worry about not being familiar with the turbine structure because it was very close to a model we were producing..." This somewhat riddle-like description made the three people on the other side look at each other in confusion. When it comes to models being produced by Haofa Group that are related to Rolls-Royce, the first thing that comes to mind is of course the Turbofan 9. However, the British have long given up on the entire Spey series at the aviation development level, and it is impossible to produce a new product that requires cooperation with China. The only ones left are the Turbojet 8, M250, and D436. The first two are also outrageous, so... "Third rotor..." Chang Haonan quickly captured the key words. In Rolls-Royce''s current product line, the two leading turboprop engines are actually products of Allison acquired in the early years. They use a single rotor + free turbine. Of course, it can also be said to be some kind of dual-rotor design. The original British three-rotor is only... Trent series. When this answer popped up in his mind, even Chang Haonan, who had experienced strong winds and waves, couldn''t help but stop breathing for a moment. This is not a small game like M88 or SeA650. Among the entire Trent series of engines, the smallest one is the Trent 600 with a thrust of "only" 28.5 tons. However, due to the failure of the McDonnell Douglas MD-11, Boeing 747-400X and Boeing 767-400ER, it became one of the rare models of Rolls-Royce that had its aerospace project canceled due to lack of installation targets. The limited-time experience card of China Aviation Industry belongs to yes. Among the other models still under development, the smallest Trent 700 sub-model also has a thrust of 31 tons... 31 tons! In the previous life until Chang Haonan was reborn, although China had built the fourth-generation engine Turbofan 15, it still did not have a model that reached this level of thrust. It can be said that the Trent series engines are one of the cornerstones of the European and even the world''s air transport industry. But now, an opportunity to participate was right in front of him. "I think it''s better not to make a decision so quickly..." Lin Zuoming happened to say at this time: "The other party has only given ambiguous conditions and refused to give detailed technical parameters and specific processing requirements for the parts to be processed. I am worried that it is a trap deliberately set for us... What if it is like the situation encountered by the shipbuilding industry before? Its like the Zall Group, who wants to take our liquidated damages? As a leader who has worked on the aviation front for decades and has had many dealings with the West, he is indeed very vigilant. And Zhu Linyu was obviously a little moved: "That''s true...so Comrade Zuo Ming, what you mean is that we won''t..." "Mr. Zhu, it''s okay." At the critical moment, Chang Haonan couldn''t care so much anymore and quickly interrupted the other party. Zhu Linyu and Lin Zuoming looked at him at the same time. "you mean" "The risks Mr. Lin mentioned do exist, so we''d better go deeper with Siro... In fact, it''s best to contact the Rolls-Royce Group directly." Chang Haonan made a smooth transition at first, but then changed the subject: "My opinion is that even if there are risks, as long as they are within control, we will continue this cooperation!" "The British came to us for air film hole processing because they saw the technology applied to SeA650 and it has already been mass-produced. Although the process parameters of ultra-short laser processing for different base materials may be completely different, this time... I will personally take the lead in taking charge of the project! Hearing this statement, Ren Bingda almost jumped out of his chair The last aviation project that Mr. Chang personally took the lead in was the Turbofan 10. The significance of this model itself goes without saying. Even if it was just some scraps from the process of developing the turbofan 10, after picking them up, they helped their Haofei Group solve the long-standing problem of localization of Sibei MK202. Not only was it solved, but an upgraded model with better performance was also modified by hand. To this day, Turbofan 9A is still the most important job of Haofa Group. Now that Mr. Chang takes action again, he can''t even imagine how much benefit it will bring. Zhu Linyu was also stunned: "Comrade Haonan, I don''t mean to question your ability, but after all, one person can''t do all the work. You already have a lot of projects on hand. If you personally take care of another one who is far away in Haojing..." "Don''t worry, Mr. Zhu, I can arrange it." Chang Haonan replied: "If it doesn''t work, you can consider postponing other work for a stage and give priority to this cooperation project!" "this" Even Ren Bingda was greatly surprised at this time. Not to mention the other two. If we successfully cooperate with Rolls-Royce, it will indeed improve our status and visibility in the international aerospace industry to a certain extent, but the other party will certainly not publicize the work we have participated in, and will not allow us to fully participate in it. Throughout the development of aero-engines..." Lin Zuoming said doubtfully: "Mr. Chang, is it really such a high priority?" Chang Haonan waved his hand: "Participating in overall research and development is indeed a bit too whimsical... at least it is not possible yet." "However, a new type of high-temperature-resistant titanium-aluminum alloy is used on some turbines of the Trent series engines. This is currently a gap in my country''s aviation materials research... And since the other party wants us to process products, even if it is a pure OEM, they must provide relevant information. Turbine substrates, and coating information." Having said this, he clenched his fists and knocked on the table: "Even though this information may not be complete, it is still very critical technical intelligence for us!" (End of chapter) Chapter 1025 This time it’s really subcontracting. Chapter 1025 This time it is really subcontracted... The Trent series engines have entered China with the Airbus A330/340 and Boeing 777 series aircraft, and their basic structure is not a secret. It''s just that Zhu Linyu and Lin Zuoming have no longer been responsible for front-line work in recent years, and the strings in their minds were too tight, so they couldn''t react immediately. But after Chang Haonan pointed it out directly, the two quickly realized the value of this project. "Mr. Chang must be thoughtful..." Lin Zuoming also hurriedly borrowed the **** to get off the donkey: "I''ve been sitting in the office for too long, and I''ve only been thinking about contract risks..." "In addition, even from a publicity perspective, there is still room for maneuver." Chang Haonan further added: "Since Rolls-Royce contacted Haofa Group directly through Ciro, it does mean that they are unable, or at least unwilling, to bring us out to speak openly." "Of course, this is understandable. Although China''s reputation in the aerospace industry has improved a lot in recent years, it has no negative impact at best. There is still a gap between it and a golden brand like Rolls-Royce." "But we can change our thinking and let Airbus promote that we are a second-tier supplier of core subsystems for passenger aircraft..." "Originally, the secondary suppliers are not particularly sensitive. Considering the Chinese market and our cooperative relationship, Airbus should not refuse..." In fact, this paragraph can be regarded as supplementing the publicity value mentioned by Lin Zuoming earlier. On the opposite side, Ren Bingda could no longer sit still. He took advantage of a moment when no one spoke and asked quickly: "Then... leaders, our next step should be..." This time, the three of them looked at each other, and finally gave the opportunity to speak directly to Chang Haonan. The latter knew that this was not the time to shirk, so he immediately spoke: "You can continue to talk to Ciro in name, but the person you meet with specifically must be directly the management of Rolls-Royce with certain authority. Of course, we will also give you equal decision-making power at the group level. " "Otherwise, the high-level officials on both sides would relay the remote dialogue in three rounds like today, which would be inherently inefficient. It might also involve conflicts of interest between Ciro Company and their headquarters. The wrangling may not lead to a conclusion until next year." When Ren Bingda heard Chang Haonan say that he would delegate power to negotiate, he straightened his back almost involuntarily: "yes!" "besides." Chang Haonan stretched out his hand and pressed down, indicating that there was no need to be so serious, and then continued: "If the British side have been avoiding the important and taking the easy during the negotiation process, then you can go around in circles with them, but the premise is that you must at least find out from the other party what type and part of what we need to process..." In fact, if possible, Chang Haonan would even like to go to the negotiating table in person as he did back then. The conditions given by the British before were too ambiguous. Turbine parts. It sounds pretty accurate. However, the turbine of the British three-rotor engine is divided into three parts: low, medium and high pressure. The working environment, design and material differences between them are very obvious. For example, the operating temperature of low-pressure turbines is far less exaggerated than that of high-pressure turbines, and some are even below 1000K, so the requirements for materials and heat dissipation are correspondingly lower. Therefore, which process the other party wants to hand over to China will have a great impact on the preliminary preparations. However, after all, he is now the most important leader of the Aerospace Power Group. Even if he wants to come forward, it cannot be in such an early stage of contact. So we can only entrust it to Ren Bingda. Originally, Chang Haonan did not have any expectations for the service efficiency of British companies. That''s why Ren Bingda was asked to get some key information through indirections, but he was not in a hurry to talk about the results. In fact, he was even mentally prepared for a tough tug-of-war. But the actual situation is... After Ren Bingda returned to Haofei Group and responded to Xiro Company according to Chang Haonan''s request. It only took two days before they received a response. Although it was still transmitted through Brin and Whittle, it was obvious from the content that this was the attitude from Rolls-Royce headquarters. The other party said that it understood China''s request for face-to-face negotiations, but due to restrictions on some business operations, it could only send one project manager to China with his entourage to conduct talks as the British representative of Ciro Company... This efficiency directly surprised Chang Haonan. So un-British. Even Ren Bingda, who had been thinking about Haofei''s possible success, began to wonder if the British had dug a hole waiting for him to jump into. However, the former felt relieved after carefully reading the contents of the reply letter. Luo Luo obviously didn''t have much time to waste. Urgent. Moreover, not sending a formal delegation also shows that they need a white glove. For Chang Haonan, this is too familiar. It was a similar situation when Bingfei Group was involved in the NH90 project. In the end, I picked up a straight 12-inch design at almost zero cost. It''s just that Luo Luo''s requirements are more demanding now. Even for suppliers, it may not be convenient for the China Aerospace Power Group''s logo to appear directly. Thats why we relied on the Xiro Company, a joint venture between the two countries, for the entire process. This can''t be a trap. After all, if you are going to dig a hole, the more formal it is on the surface, the better. Just like what happened to Zall Company back then. The financial and legal teams alone have dozens of people. It was a great shock to the Hudong Factory, which had not seen much of the world at that time. Therefore, Chang Haonan immediately gave instructions. Can negotiate with the British. The process of contact between the two parties was no different from Chang Haonan''s speculation. The representative sent by Rollo was called Luke Norris. The level is not high, but the position is still critical, and he is on par with Ren Bingda. The other party got straight to the point in the first round of negotiations, stating that the contract needed to be signed by both Rolls-Royce UK and Ciro, and then Ciro would outsource the production tasks to Haofei Group in a relatively hidden form. In addition, they have strict requirements on the quality and construction period of finished parts, so they hope that Huaxia can provide a batch of samples for inspection before formally signing the contract. And this is one of the situations that Chang Haonan has already preset. Therefore, Ren Bingda immediately expressed his agreement in principle - Xiro Company is a joint venture established with a 50:50 share ratio. Although it may sound a bit strange for a subsidiary to outsource its business to the parent company, there is no procedural problem. Moreover, in addition to the two British representatives, Xiro Company actually also has a management team sent by China. Even Ren Bingda himself is one of them. Its just that I dont participate much in daily management. With this layer of insurance, at least there won''t be any big mistakes. Of course, he also put forward China''s conditions. The British side should fully cooperate during the execution of the contract and cannot set up additional obstacles in the handover of semi-finished raw materials, technical information, products and finance. In particular, the characteristic information of the substrate to be processed must be provided in accordance with China''s requirements... After going back and forth, by the time the negotiations reached the third round, both parties had reached a consensus on the content of the sample trial production contract Within three months, Ciro Company will process air films for a total of 5 sets of high-pressure and medium-pressure turbine disk/turbine blade assemblies of Rolls-Royce''s RB211-524B4 aeroengines in accordance with the parameters and requirements noted in the attachment. hole. If the acceptance is passed, Rolls-Royce will guarantee to provide a processing contract for no less than 100 sets of identical or equivalent parts in the next three years. Immediately afterwards, a contract with almost identical contents, except that Party A and Party B were replaced by Xiro Company and Haofa Group respectively, was also signed on the spot... that''s all. Airbus and even Rolls-Royce executives were kept in the dark. China Aviation Power Group has quietly become a secondary contractor for the A380... (End of chapter) Chapter 1026 Production efficiency that Luo Luo canno Chapter 1026 The production efficiency that Luo Luo cant understand... When Chang Haonan saw this sample trial production contract in the conference room of Haofa Group, he immediately laughed out loud... "Uh...Mr. Chang?" Ren Bingda was still a little confused. "nothing." Chang Haonan was currently wearing a blue overalls that he had not worn for a while, and shook his head with a hint of ridicule: "RB211-524B4...The British are really careful..." As he spoke, he flicked a piece of information on the table and explained to the other party: "This model is a Boeing 747-200, and it also has the power of the L1011-200. It is almost 20 years old and will be eliminated soon... How is it possible that there are any special-shaped air film holes that we need to process?" "To put it bluntly, we still don''t trust our level, and we are worried that useful technical information will be taken away by empty-handed white wolves... so we first throw out a less advanced old guy to explore the way." After clarifying the words, Ren Bingda naturally understood it instantly, and quickly came over and asked: "Then let''s..." Resisting in the face of change. Chang Haonan didn''t wait for him to finish asking, and answered directly: "No matter what, the British are Party A...actually Party A''s Party A, and this is also the first time they have such in-depth cooperation with us. It''s normal to be a bit suspicious..." "In addition, the RB211 engine is relatively conservative in the use of materials. According to the information provided by Rolls-Royce, although it is different from our specific brand, the turbine part is still mainly made of nickel-based alloy. In this way..." While the two were talking, slightly chaotic footsteps came from the corridor outside. Soon, a group of about fifteen or sixteen people appeared at the door of the conference room. "Report!" A technician wearing the same work clothes as Chang Haonan said loudly. "Come in." Chang Haonan had no choice but to temporarily suspend the topic, signaled everyone to take their seats in order, and then opened the technical information in front of him, preparing to introduce the key technical aspects of this sample production. However, when he raised his head again, he accidentally spotted a somewhat familiar face among the crowd. Chang Haonan searched in his mind and quickly found a matching name: "Are you... Comrade Zhang Zhenhua?" Zhang Zhenhua, the head of the technical department before 430 Factory was completely restructured into Haofei Group. He was also one of the representatives sent by Factory 430 to Shengjing to learn from experience when Chang Haonan was carrying out the Seiko Plan based on the turbojet 14 project. He later also participated in the Turbofan 10 project and played an important role in the verification of some technologies. However, as the Turbofan 9A, which was the Turbofan 10 technology verification model, began testing, Zhang Zhenhua had to leave the project team and return to his original unit to take charge of the work. Since then, the two have not seen each other again. Its been nearly four years since we last saw each other. Zhang Zhenhua, who was still in his prime at that time, was now gray on his temples. Considering the other party''s age, the mere passage of time may not be enough to bring about such a huge change. Obviously, he is also worried about the Haofa Group... "Mr. Chang." Zhang Zhenhua, who was directly called by his name by Chang Haonan, stood up and shook hands with the former with some evasive eyes: "I''m really ashamed..." The expression on his face was a little gloomy: "After so many years, we now have an opportunity in front of our Haofa Group, but we still have to trouble Mr. Chang to personally lead the project..." After so many years, Zhang Zhenhua''s title is still the director of the technical department of Haofa Group. The pace of progress has indeed failed to keep up. Of course, this is also related to the actual situation of Haofa Group. Turbofan 9 is a digestion and absorption technology, D436 is directly introduced into final assembly, and NK32 is not easy to understand in a short time. The self-developed turbofan 20 is still in the project preparation stage... In short, compared to the big brother next door, the results are indeed not impressive. "What''s this..." Chang Haonan smiled immediately after hearing this and said with relief: "Ultra-short laser processing is, after all, a technology developed under my leadership. It is your first time to come into contact with it. It is normal for you to be unfamiliar and uncomfortable." "On the Shengjing side, it was only after I took them through the process that some people gradually began to be able to take the lead..." "And from another perspective, the idea of ??using ultra-short lasers to replace continuous lasers can be concealed for a while. If the technology itself is really that simple and can be completely familiar to you in a year or two, then how can other countries Cant we catch up soon? This angle is indeed relatively fresh and refined, so that Zhang Zhenhua, who was a little depressed just now, was stunned for a while. Then I felt that it did make some sense... "Okay, let''s get to the point." We are all adults, and we can only rely on ourselves to adjust our mentality. Therefore, Chang Haonan did not say any more, but stood up and came to the back of the small podium: "I think comrades should already know the general situation, so I won''t go into details. In short, the turbine part of RB211-524B4 is still mainly made of nickel-based alloy, so the database we built before can be directly used." He turned on the computer as he spoke, and a page of PPT appeared on the screen: "Of course, the specific parameters of the British base materials are quite different from ours, so we still need to use the blanks provided by them to conduct several rounds of experiments..." For Chang Haonan, this process is basically familiar. Although the workload is not low, there is sufficient manpower after all, and there are also several experienced veterans from the 606 Institute. The only problem is the equipment. The Haojing Institute of Optical Mechanics has currently produced a total of four sets of ultra-short laser processing equipment including prototypes. Two sets of mass-produced models are in Shengjing, and the other two sets of prototypes are in the laboratories of the Institute of Optics and Mechanics and Chang Haonan respectively. Therefore, Haofa Group does not have a production line on hand. The current samples can be temporarily processed by borrowing several other sets of equipment, but this will definitely not be possible for mass production in the future. Therefore, after the contract was signed, Haojing Optics and Mechanics Institute was even busier than Chang Haonan and others, working three shifts a day to produce the third set of mass production equipment for Haofa Group, striving to install it before the formal contract was signed. Even under such conditions, Chang Haonan still led the team to complete the production of two batches of five sets of parts in less than half the time stipulated in the contract... 2002, August 3. Derbyshire, UK. Tim Purdy, who had just finished a technical meeting, returned to his office with a stack of information, and then rubbed the corners of his sore eyes. About a month and a half ago, the Trent project team unanimously agreed to find China Aerospace Power Group through Xiluo Company, and the latter would manufacture turbine discs and turbine blades using new film cooling technology. Although it is still in the "investigation period", the development of Trent 900 has actually started walking on two legs since then. That is to say, while restoring the earliest design and restarting the testing process, preparing to use more fuel-efficient products to compete with the GP7200, it also continues to advance the subsequent plans to prevent China from falling behind. Of course its good to be prepared with multiple hands. However, the price is that almost everyones workload is doubled. "director" Bodie''s secretary Kelly Toulson came in from outside: "Many people have asked me privately recently when this current situation will end." "Now the average working hours of the entire project team is more than 60 hours per week. If things continue like this...the union may also find us trouble." For British people, this way of working overtime is indeed a bit fatal. The time period is okay, but this has been going on for almost 40 days, and things are really boiling down below. Hearing the other party mention the union, Bodi hesitated a little. But in the end he shook his head; "There is really no way... now the two technical routes must be advanced simultaneously, and neither one can be given up." "When we signed the contract, we gave the Chinese people three months. Now..." He sighed softly, then glanced at the date on the computer screen: "It''s only been 38 days... Even if they can deliver the goods on time, it will take almost another seven weeks." Hearing this terrifying figure, even Kelly, who had a relatively easy job, felt a little nervous and resisted the urge to roll his eyes. "Well, you can find a chance to tell everyone, and after this busy period is over..." Bodie originally wanted to invite everyone to go on vacation during the summer public holidays, but that day was the last Monday in August. Not only would it be impossible to take a vacation within a three-month period, but he might even have to work overtime... "During the Christmas holiday, the project team paid for everyone to take turns vacationing in the Mediterranean..." He had no choice but to wait until Christmas. As expected, Kelly put one hand on his forehead and shook his head. The picture was too far away, and it was difficult for her to tell her colleagues... But it seems that there is really no other way. And at this moment, accompanied by a burst of hurried footsteps, a figure appeared at the door of the office in a hurry. He even forgot to knock on the door. "Director, Director Purdy!" Although his view was blocked by Kelly, it was not difficult to tell from the voice that the person coming was Luke Norris, who had just been brought under his command some time ago. "Norris?" Bodie frowned. The other party''s character is usually quite stable, but today''s appearance is really unseemly. "Director, I just...just received...the news from Siro Company." Norris ignored the explanation and put a document in his hand in front of Bodi while panting heavily: "That batch of samples...has been produced and will be sent to us within a week...for testing!" For a moment, the only sound left in the huge office was Bodi''s heavy breathing. "You''re talking about...the batch of samples that were handed over to the Chinese for production?" Bodie slowly reached out and opened the folder on the desktop. There was only a piece of paper inside, and the content written on it was exactly the same as Norris''s return just now. "Yes, that''s the batch." Norris had already taken a breath now, stood up straight and replied: "In fact, Mr. Bitter had already gone to the Huaxia factory yesterday to inspect this batch of goods. It was just because of the time difference... that we were notified now." Bodie felt that this world seemed a little unreal. He glanced at the date on the computer again. Because I was worried, I took another look at the calendar next to me. No problem, August 3rd. "???" In fact, the three-month period was specially shortened by Bodie. The bottom line set internally by Rolls-Royce is that as long as the Chinese people can produce qualified products before December. After all, after taking over a new material, process development will take some time. but No one has ever thought that this thing can be delivered in advance? (End of chapter) Chapter 1027 Sometimes, too fast may not be a good th Chapter 1027 Sometimes, too fast may not be a good thing If anyone is happiest right now, its Kelly Toulson. In fact, her first thought was to ask if the vacation Bodie promised just now was still considered. After all, the latter is about waiting for this busy period to pass. Even though he didn''t know much about technology, Kelly could tell that this period of dark overtime work was probably about to end. However, after feeling the atmosphere in the office for a while, she felt that now might not be a good time to ask this question. It would be better to just follow Bodi''s request and release the news. By then the deal will be done and he will have no choice but to disagree. Thinking of this, Kelly quickly said that as an administrative secretary, he should not be too involved in technical work, and then quickly turned around and left... But in fact, Bodie didn''t pay attention to Kelly at all. He didn''t even notice that the latter had left. Mainly because of the news just now, the sequelae are indeed a bit serious. "One week..." He knocked on the table a little irritably, raised his head and looked at Norris again: "Can''t it be faster?" In fact, Bodi had been prepared to wait 3-4 months. However, preparation returned to preparation. When he heard that the product had been offline, but it would take another week to be delivered to the UK, all his previous mental construction collapsed in an instant. I wish I could receive the sample the next day, see the test results on the third day, and then completely switch to the previous technical route and beat the GP7200 with lower fuel consumption... Jijiji, I am the King of Jiji.jpg "Um" Norris looked embarrassed: "Director, you also know that after all, import and export still need to go through customs declaration procedures, and the total size of those samples is not small. It is impossible to check in passenger luggage. There are not many cargo planes between China and the UK. If we go in advance, I''m afraid..." Obviously, as far as cross-border transportation in the early 21st century is concerned, seven days is indeed not slow in normal terms. In fact, this is because the Aerospace Power Group has exerted some influence through the Commission of Science, Technology and Industry for National Defense, otherwise the customs declaration process alone would have taken longer. Of course, Luo Luo still doesn''t know about this for the time being. Naturally, Bodi was still a little unwilling to give up: "Maybe we can send a cargo plane to specially transport those things back..." As one of the world''s leading aviation manufacturing giants, Rolls-Royce naturally has its own fleet of transport aircraft, operating multiple models of aircraft including L1011, Boeing 757, and 777. For a job as big as Trent 900, its not a bad trip. "But supervisor, if you specifically adjust the aircraft, the destination and cargo category must be recorded. This is difficult to fake." While Bodie was getting a little impatient, Norris still maintained a considerable degree of sanity: "By the time of the review at the end of the year, it is possible that the higher-ups..." This sentence instantly reminded the former: "hiss" Bodie woke up instantly. Early delivery by the Chinese is not always a good thing for them... According to the previous plan, in order to hide the truth from the board of directors, especially to prevent them from thinking that such advanced technology can be developed with only tens of thousands of pounds per year, the Trent 900 project will inject large sums of money into Ciro in the next few months. R&D funds and spread this investment throughout the year through a series of financial means. In this way, it can be said that Ciro Company gained some new inspiration in the process of helping China master the Sibei MK202 technology, and before that they had been using China''s resources to conduct theoretical research. But because this technology is so important to the Trent 900, we started investing a lot of money this year to advance it to the engineering stage and then solve the problems that have troubled us for many years. Although the price-performance ratio still seems a bit too high, because there are "Chinese resources" as a black box in the middle, it is barely justified. But this requires that the entire project must remain low-key until the end of the year. Sending a special plane to pick him up would definitely eliminate the need to think twice. Even if everything goes well later, there will be problems even with the formal contract provided to China Too early. The money hasn''t been fully paid yet, but your production contract has already been signed? It always seems a little strange. But if we really wait until the end of the year as planned... Bodie really doesn''t have the patience anymore. "Forget it, let''s talk about it then... At worst, we''ll have to make a fuss about the contract time..." Bodie shook his head helplessly and thought to himself. After all, the signing date is pushed back rather than brought forward, which actually does no harm to China. Then, he stood up again, ready to tell Dr. Lapworth the good news. As the developer of new air film cooling technology, the latter is undoubtedly the one who is most looking forward to the success of the Chinese people among everyone... While everyone at Luoluo headquarters was waiting impatiently, 7 days passed as long as 7 years. Finally, on August 10, they received a cargo box from China. Inside are 5 sets of turbine parts that have been processed. Although it is already an outdated model, it is definitely the most precious thing for the current Trent 900 R&D team. In the test workshop, Lapworth removed a high-pressure turbine blade from its bracket and placed it on the integrated elastic displacement sensor next to it. In fact, until now, there is still no particularly perfect technology that can accurately measure the detailed data of such ultra-small special-shaped inner holes. Only specially modified probes, combined with elastic displacement sensors, can be used to obtain as accurate results as possible. Fortunately, the air film hole is very precise, but there are some details that don''t need to be stuck too tightly. After all, in engineering design, everyone leaves a margin... Looking at Lapworth, who was immersed in the test bench, the air in the workshop was inevitably a bit depressing. Everyone is waiting for the final result. "Supervisor, wait a minute... Do you need to go to the simulation test bench to test it?" This meeting was so tense that no one knew who was who. Anyway, one person, perhaps to ease the tense atmosphere, suddenly asked Bodie in a low voice. "No need." Bodie didn''t even move his eyes, he just moved his lips: "These sets of samples are just to move the air film hole design of the Trent 900 to the RB211 to initially witness the processing capabilities of the other party... There is no design at all, so there is no test standard." "As long as the physical dimensions are okay and no damage is found, it shouldn''t be a big problem." Because the entire plan to find a Chinese OEM was made within a few days, it was inevitable that there would be some omissions. But as long as there are no mistakes on the big picture, it will be fine. After all, after the real product is in place, the entire process will definitely be tested. Rolls-Royce has a century-old foundation and never dares to be careless in terms of reputation. Especially... this is the first time that core components have to be outsourced. "But among the parts we really need to process... there are two sets of low-pressure turbine discs made of titanium alloy. The processing properties of these are completely different from those of nickel-based alloys. Could it be..." Another voice also asked. "Well...it just depends on the situation." Bodi sighed softly: "If it really doesn''t work, the low-pressure turbine can also use traditional materials... Anyway, the original choice of titanium alloy was just for technical verification. It is just two sets of turbines. In fact, there is not much difference in weight." "Director, have you ever thought about it, if the quality of the Chinese products is not up to standard, then during this period of time we..." The third question is obviously a bit inappropriate. Not only Bodi, but also the faces of several people next to him suddenly dropped In fact, everyone has thought about this matter to some extent. The worst result is to continue to use the design that reduces the combustion chamber outlet temperature. In fact, there is not much loss. But psychologically, it''s completely different... Good thing. At this time, Dr. Lapworth finally raised his head. "call-" She habitually stretched out her hands to comb her hair, and then breathed a sigh of relief: "The size is up to standard!" (End of chapter) Chapter 1028 A really big contract, everything is changing! Chapter 1028 A really big contract, things are changing! While it''s impossible to make a final decision from just one test on one sample, a good start is certainly exciting news for everyone here. At least worries about the product being completely substandard can be put to rest for now. Even if some minor flaws are discovered later, there may not be no chance of remedying them. After all, less than 40 days have passed out of the original three months, with a minimum guarantee of four months. According to this efficiency, it is enough to produce four batches of samples... In addition to size, are the processing defects serious? Bodi took two steps forward, leaned over and glanced at the screen: "I remember reading several papers from China before. Their technical route should be laser thermal processing. The surface morphology of the air film holes..." Chang Haonan''s Nature article back then had a huge influence. As the saying goes, if you want to deceive others, you must first deceive yourself. After his paper was published, Chinese technicians studying material processing, especially thermal processing of metal materials, flocked to this direction. In just a few years, many articles with a certain level of quality were published. Of course, this can''t be called a waste of resources. In scientific research, sometimes we cannot pursue cost-effectiveness. In most cases, those truly valuable results are sifted from a large amount of academic garbage. Just like the studies above. Although we were unable to produce another usable engineering equipment until the end, we still explored the characteristics of various types of metal materials and at least accumulated a lot of meaningful data resources. And objectively, it does play a very good role in confusing - Although some cutting-edge scholars have begun to re-examine the feasibility of the continuous laser thermal processing route and even question its application potential in principle, in any case, the current mainstream research direction has not changed. So much so that even senior engineers like Bodi are not immune to this. "The complete morphology needs to be done at the electron microscope for destructive testing before we can know it. It will probably take another... three or four days." Dr. Lapworth shook his head and replied: "However, from the test results I can basically infer, there should not be a particularly obvious remelted layer, otherwise the compliance rate of the channel shape would not be as high as it is now... In addition, due to the same reason, the crystal phase situation should not be as high as it is now... There will be significant changes. "As for the cracks...it''s hard to say. Whether it''s direct observation or relative density detection, it''s probably too late today..." Upon hearing this judgment, Bodi frowned in confusion: No remelting layer He picked up a turbine disk from a bracket not far away, raised it in the direction of the fluorescent lamp and stared at it for a moment. Naturally, it was impossible to see any clues with the naked eye, so he quickly shook his head mockingly and put it back: "Actually, I was thinking about how the Chinese people were going to solve the problems of hot melt effect and alloy structure defects two years ago..." "Later, I talked about the Chinese paper with Professor Martin Bock of the Appleton Laboratory. He also felt that although the theoretical part in it was very sophisticated, with China''s current industrial level, it would be difficult to actually manufacture equipment that meets the requirements. For Bodie, the Trent 900 is important, but in the end it is just one model in a series. In contrast, he is more concerned about the Chinese people''s craftsmanship in processing such air film holes. "This is not my concern anymore..." Lapworth shrugged: "Those of us who engage in numerical calculations have been using calculation tools developed by the Chinese for several years..." The implication is that I have become accustomed to it. But after a short pause, she changed the subject: "But I heard that China has been importing high-precision control motors and drive motors in recent years. If you are particularly interested, you can ask people in the related industry." "Um" Regarding this proposal, Bodi hummed noncommittally and did not make a clear response. In fact, for a moment, he wanted to ask Lapworth if he could consider reverse engineering this Chinese technology. The reason why I didn''t say anything in the end was because I only had the finished parts on hand after processing, and I had never even seen other people''s equipment, so the conditions were really not enough. The second is... Reverse engineering, to put it bluntly, is imitation... and to put it more clearly, it is copying. This is completely different from the nature of borrowing ideas. Not that Bodie''s moral standards were that high. But to imitate a Chinese technology... Its true that I cant overcome this psychological barrier I bring you Ying, the birthplace of the industrial revolution. I am Luo Luo, one of the top three aviation giants in the world. China can understand the technology, why can''t I do it? With this mentality, he finally decided to go to the process department first to see if he could think of a solution from a positive perspective. At least, it is now certain that mass production can be achieved through laser processing. After all, there are five sets of turbines right in front of you. Although the original electrochemical processing method can produce qualified products, it has almost been sentenced to death in terms of efficiency. Its time to switch the focus of research. Spurred on by extra days off and free holidays, a group of Britons displayed a very un-British efficiency. Before the end of August, they not only completed all testing projects, but also went through a series of administrative procedures and sent more detailed processing requirements to Ciro Company. Of course, it is equivalent to sending it to Haofei Group. "Finally..." Chang Haonan sat at the head of the conference table, looking at the stacks of paper materials being moved out of the cart, showing a pleased expression: "These British guys are finally willing to let go..." At this time, Ren Bingda just walked in from outside in a hurry. Even though I cant hide the exhaustion on my face due to the hard work these days, I am still very energetic: "Mr. Chang, we have completed the handover and preliminary arrangement of all materials." He took off his work cap and sat in the first seat on Chang Haonan''s left: "The official order Rolls-Royce gave us is for the high-pressure and low-pressure turbine parts of the Trent 900. The processing requirements for the air film holes are basically the same as the previous RB211-524B4, but there are certain differences in the arrangement and distribution of the holes." After finishing speaking, he picked up the paper cup next to him and took a few sips of tea. "Sure enough, it is this model...the power of the Airbus A380!" Chang Haonan slapped the table excitedly. In fact, when he first speculated that the processing target was Trent series products, he had thought about whether it would be Trent 900. However, becoming a second-tier supplier of Airbus A380 in one step is almost equivalent to entering the core system of the world aviation supply chain - The industrial park in Luzhou mainly undertakes some peripheral businesses, and all products will only be installed on aircraft sold to China. It is equivalent to self-produced and sold. But this time it''s different. A380s bought around the world, as long as they are equipped with Rolls-Royce engines, must be equipped with parts produced by China. It is still an irreplaceable core component. That''s the A380... It''s completely different from small things like Rafale or Falcon business jets. It''s almost too good to be true... Therefore, Chang Haonan never said anything out of fear that everyone would expect to break the defense without authorization. But now, its almost time to pop the champagne. "This is a great opportunity." After thinking for a while, he said to Ren Bingda: "If you, Haofei, can do this business well, you probably won''t have to worry about order issues for at least the next 20 years..." "Isn''t this Mr. Chang..." Ren Bingda quickly switched to flattering mode: "It will definitely be done well!" Chang Haonan waved his hand seriously: "I can only guide you for this period. I can''t do it myself all the time." "In processing and manufacturing, even if the process is familiar, the final implementation still depends on the level of production organization, so we can''t relax no matter what..." While the two of them were chatting back and forth, the transfer of relevant information and texts was also completed one after another. There was a table full of them. "I remember... the low-pressure turbine of the Trent 900 should have used a new high-temperature resistant titanium alloy." Chang Haonan took a deep breath and quickly returned to the topic: "Comrade Bingda, go and gather the key comrades of the project team. Our next main task is to overcome the processing technology problem of titanium alloy materials..." (End of chapter) Chapter 1029 Does the Trent 900 have a design flaw? Chapter 1029 Does the Trent 900 have design flaws? That evening, the R&D team, which had been officially named the Trent 900 Turbine Production Project Team, held its first project seminar attended by all major members. "Comrades, I think there is no need to emphasize the importance of this mission to Haofei and the entire group." Chang Haonan opened the game and went directly to the topic: "The production contract given to us by Rolls-Royce includes two parts. One is the relatively traditional high-pressure turbine. I briefly looked at the information on this part in the afternoon. It is an upgraded model of the aviation materials used in the RB211-524B4. It can be found at Build on previous experience. He pulled out a piece of paper from the folder in front of him: "Furthermore, after preliminary testing by the technical department, the turbine blades given to us by the British are semi-finished blanks, the blade crown part has not yet been processed, and the surface has not been coated with a heat-insulating coating..." Obviously, as an established company, Rolls-Royce is still on guard against some particularly sensitive parts. Although hiring someone to process it will inevitably reveal some confidential information, by removing the two key details of the turbine structure, the detailed design parameters of the blade tip and the material used for the heat-insulating coating, it can at least prevent China from replicating a Trent 900 as it is. By 2002, very few Western companies dared to say, "You can''t even make technology if you leave it to them." "Of course, everyone just takes what they need in business, and it''s normal to keep one hand." Chang Haonan is very open-minded about this: "Moreover, such semi-finished products are easier to handle. Firstly, there is no need to consider coating issues, and secondly, the clamps can be directly fixed on the blade ends and blade roots, without even redesigning..." "In general, this part of the work is to find suitable processing parameters based on the properties of the new nickel alloy material. The workload may be a little bit, but it is basically step-by-step." When they first heard this, everyone, especially Zhang Zhenhua, couldn''t help but heave a sigh of relief. As a result, Chang Haonan''s next words made them stop laughing: "So, now that I have accumulated previous experience, I am ready to leave it to you to do the high-pressure turbine..." After finishing speaking, the former held his chin with both hands and glanced flatly at the many faces in front of him. And stayed in several locations for a period of time. Its like thinking about who to pick as the lucky listener In an instant, the temperature in the conference room seemed to drop a lot. Although Chang Haonan''s expression is still warm, in the eyes of others, he looks like the head teacher who appeared outside the back door window of the classroom when he was at school... "Chang...Mr. Chang." Zhang Zhenhua subconsciously looked around and felt that there was a high probability that this matter would fall on him, and he inevitably felt a little guilty: "I think...should it settle down a little more?" You can''t blame him for being slow to comprehend. When the turbofan 10 production was finalized, Chang Haonan himself started the research from scratch. Although the 606 Institute may not have been able to keep up with the pace at the time, it at least went through the whole process. Its amazing that you can slowly understand it after you go back. But when it came time to trial-produce the RB211 turbine blade sample, not only Chang Haonan himself was already very proficient, but even the senior staff who came to support from the 606 Institute had already experienced the two models of turbofan 10 and M88-3. So the progress is actually very fast. You know, Luoluo felt like almost 40 days had passed, but in fact, for Haofei, after receiving data, docking requirements, and several rounds of trial production, it only took a month. In addition, Zhang Zhenhua was born in Factory 430, so his foundation is already weaker. Its normal to feel unsure. However, Chang Haonan knows very well that if you don''t push some people hard, they will never reach their limits. Moreover, he happens to be in Haojing right now, so even if something goes wrong, he can easily cover it up. If Zhang Zhenhua waits until the end of this project to start taking the lead, the cost of error correction will be high... "Old Zhang..." Chang Haonan said in a half-joking tone: "We have two production tasks on hand. The other one is a low-pressure turbine using high-temperature resistant titanium alloy. This type of material is almost completely blank for us." "Originally, I planned to be responsible for the latter part myself, but if you really don''t want to, then we can change it..." It can only be said that the roof-lifting theory is indeed useful sometimes. Zhang Zhenhua, who was numb, immediately shook his head: "No, no, no... Then I''d better take charge of the high-pressure turbine part..." The conference room was suddenly filled with cheerful air. However, you can''t just squeeze it out at this time. Definitely still need to give some support. So, after the laughter gradually subsided, Chang Haonan continued: "In addition, I will ask Comrade Chen Zhongsheng and Comrade Zhong Yi to join you as technical consultants. They are already relatively experienced in the process development of nickel-based alloy materials." "I believe that with the cooperation of the three of you, we will be able to properly solve the production problem of high-pressure turbines..." The two names he called were from the 606 Institute and Liming Factory respectively. They were both technicians selected by Liu Yongquan to support the work of his brother units. And, if nothing else happens, Zhong Yi will still stay in a leadership position with Hao Jing even after the project ends. "Then thank you, Mr. Chang..." Zhang Zhenhua''s originally pale face turned a little red. Chang Haonan waved his hand and then switched directly to the next topic: "The next part is about the low-pressure turbine..." Having said this, he also slightly adjusted his posture and sat up straighter. This means something like "I''m going to get serious.jpg". Following Chang Haonan''s actions, dozens of people in the entire room became serious. "In fact, under normal circumstances, the operating temperature of low-pressure turbines is relatively low, and the heat dissipation requirements are not strict... However, the situation of the low-pressure turbine of the Trent 900 is quite special." This time, he no longer gestured directly in the air, but turned on the laptop and projector next to him. A design drawing marked with many data was quickly displayed on the screen. But it is not the blade part that is the top priority. But the turbine disk. Or strictly speaking, it is the part where the turbine disc and turbine shaft are connected. "In the case of the low-pressure turbine, the difficulty is on the one hand the material issues I just mentioned. We have never done it before and are not familiar with it. On the other hand, the design of this turbine is rather... strange." Chang Haonan considered the words for a long time, and finally found a more euphemistic way of saying it. "It may be because the three-rotor structure itself has made the rotating shaft part very complicated, or it may be for other reasons. In short, Rolls-Royce did not provide an anti-overrotation design for the Trent 900 in the low-pressure turbine part... and although there is not enough information, But I doubt they even have one on the medium-pressure turbine side..." "Normally, this will not have any impact, but once a fault occurs and the turbine shaft breaks, the medium-pressure and low-pressure turbines that have lost their load will rise sharply in speed driven by the airflow, until the blades cannot withstand the huge centrifugal force. Being thrown out of the engine..." As an aviation designer, Chang Haonan inevitably has some occupational diseases. In short, it looks awkward no matter how you look at it. The key is that he does not have complete technical information on the Trent 900 and does not know how Rolls-Royce plans to solve this hidden danger. Or are they really confident that their engines will not have shaft breakage problems? "Speaking of this, Mr. Chang." Ren Bingda suddenly interrupted: "When I was communicating with Ciro Company before, I heard Mr. George Breen mention it accidentally." "He said that those responsible for the production of Trent 900 engine turbine shafts and turbine accessories are Ishikawajima Harima Heavy Industries and Kawasaki Heavy Industries..." "Ahem" Chang Haonan almost lost his temper. I wanted to laugh, but I felt it wasnt appropriate. As a result, I choked on my saliva... In fact, IHI and Kawasaki themselves were not involved in the quality crisis among Japanese companies that year. However, after experiencing such an incident, Luo Luo still dared to choose them as a supplier. All I can say is... The courage is commendable. "Forget it, let''s do our own thing first..." Chang Haonan stopped his smile and waved his hand towards Ren Bingda: "In short, what is relevant to us is that the density of air film holes in the part where the turbine disc and turbine shaft are connected is larger than that of ordinary models, and the requirements for stress control and defect control during the processing are also higher... " Chang Haonan spent about three hours briefly introducing his R&D plan and the specific directions that each group is responsible for. It has to be said that this is a challenge even for him. Mainly its a matter of construction period On the surface, Luo Luo wanted to take it easy this time. They even specifically requested that the contract signing date be written to December 2002. The delivery of samples must not be earlier than signing the contract, so it was pushed to before April 2003. This works out to nearly 8 months. The schedule seems to be very generous. But Chang Haonan knew that an unexpected incident was likely to occur in early 2003, which would affect the entire work progress in the first half of next year. If you exclude this part, there are only four months left. Excluding the fact that Perelman could not be contacted for a while, the International Congress of Mathematicians was postponed to the end of the year... Only three and a half months left... We still have to race against time. After assigning tasks, the seminar came to an end. Everyone went back to rest for a night, and then officially started work the next day. Chang Haonan, however, stopped Ren Bingda alone who was about to leave: "Old Ren, wait a moment." The latter had just raised his **** halfway before sitting back on the chair: "Mr. Chang, please tell me." Chang Haonan reached out and tapped on the high-temperature titanium alloy material in front of him, and said in a deep voice: "You are a local, so you should be familiar with the situation at Hao Jiaotong University and Hao University of Technology." "After I go back, think about it and see if there are any scholars who are relatively reliable and have decent level of skills in metal materials research. When the time comes, we will bring them. Of course, I will also find some comrades who meet the requirements from the 621 Institute and bring them to us. Come to the project team. Ren Bingda didn''t reply, just showed an "I understand" smile, and then nodded. According to the contract signed between Xiluo Company and Haofa Group, Party B shall not hand over the technical information about Trent 900 to any third party organization or unit without Party A. Of course, this is just a sentence that must be added to the contract template. The actual situation is that Luo Luo knows that Haofa Group will definitely use the information for reference. Haofa Group also knows that Luo Luo knows that he will use the information for reference... But this kind of thing is something that everyone knows very well. Still can''t make it too ugly. So Chang Haonan is not prepared to openly violate the regulations It''s okay not to hand over the information to a third party. But I invite people from a third party to join our project team, which you cant control... (End of chapter) Chapter 1030 Im torn Chapter 1030 I am torn apart At this time in August 2002, the Turbofan 10 had been finalized, and the Turbofan 20 project had not yet been officially approved. It happened to be in the gap between the two major models. For the current aviation power group, Chang Haonan''s task at hand is the first priority. Even among the entire Science and Technology Committee sequence, its importance is at the forefront. Therefore, his request naturally received a quick response from his superiors and fraternal units. Especially 621. Although Institute 621 was retained under the umbrella of the Aviation Industry Corporation of China during the split that year, a research and development team was organized to rush to Haojing in the shortest possible time. Even came earlier than professors from two local universities... Chang Haonan didn''t do too much, and directly received a group of technical staff from the other party in the archives dedicated to the project team. Sure enough, the effect is outstanding. When the leader saw a filing cabinet full of information in front of him, he was so shocked that he even dropped the briefcase in his hand. After staring blankly at the door for a while, he noticed Chang Haonan sitting not far away. For a moment, the atmosphere around was a little awkward What should I do if the leader is ignored on the first day of reporting? Waiting online, very urgent.jpg Finally, Chang Haonan stood up and half-jokingly took two steps forward: "I heard before that Researcher Hang Zhibin could forget about his wife when he fell in love with research materials. When we met today, he really lived up to his reputation..." Several people following Hang Zhibin also let out a burst of good-natured laughter in cooperation, finally making the scene lively again. "Hello, Mr. Chang." Hang Zhibin quickly shook hands with Chang Haonan, and then said: "Originally, after hearing about your situation two days ago, my mentor Cao Xiaochun, Academician Cao, was planning to come over in person. However, because he suddenly felt unwell, he had to temporarily let me lead the team. I hope Mr. Chang can give me more advice... " Cao Xiaochun, a leader in the 621 Institute specializing in titanium alloy materials, has presided over the research and development of a series of titanium-aluminum alloy materials and processing techniques, including TC2, TC4, and TC11. Due to this outstanding contribution, he was elected as an academician of the Chinese Academy of Sciences in 1997. To a certain extent, the reason why Chang Haonan was able to quickly apply his knowledge to the field of aviation design after his rebirth in 1996 without encountering particularly great resistance in materials was because he had received a lot of scientific research from Academician Cao Xiaochun. dividend. High-temperature-resistant titanium alloys that can withstand working temperatures of 550C or even higher are its current focus. Of course, although it is said to be tackling key problems, it is actually just entering the exploratory stage. China has indeed developed several titanium alloy materials used in aerospace engines in the past. But those are used for fans and compressors, which are cold-end components. It is completely different from Luo Luo, who directly goes to the turbine. Now Chang Haonan suddenly got thousands of pieces of information, and it was also information certified by Luo Luo. The 621 Institute naturally hopes to see it as soon as possible. "Any advice... we can''t talk about it yet." Chang Haonan motioned to the people at the door to sit down around a small table: "I came to you this time mainly because I need your support in the research and development of titanium alloy materials. After all, Haofa... In fact, including myself, I have never systematically studied titanium alloy materials in the past. I only relied on the British These things given to me are sometimes not enough..." After all, China did not directly introduce a full set of technologies, so it is naturally impossible for Rolls-Royce to really provide complete information - It is still difficult to process on the basis of semi-finished blanks, let alone reverse engineering to produce high-temperature titanium alloys with the same or equivalent technology. At least it''s not just a matter of following the information. "Where is it... Our research team has been paying attention to the direction of computational materials science proposed by Mr. Chang before. There are still many details that we would like to take this opportunity to confirm with you..." In fact, titanium alloy materials should be divided into two directions. Some people are responsible for developing the laser processing process, while others are responsible for researching the materials themselves. However, in the early stages of research, what needs to be done on both sides is exactly the same. Make representations. Although the information provided by the British side already includes the microscopic morphology and metallographic structure, this process is still indispensable after it is in China''s own hands. Because the representation object is not just the semi-finished product itself to be processed. There are also materials that have been processed by different processes, especially laser processing with different wavelengths and pulse widths. In terms of performance, they can only be regarded as waste products produced during process development. But for materials science, especially the computational materials science that Chang Haonan is studying, the waste itself is also valuable. Of course, the test does not require Chang Haonan to do it himself. However, the construction of material type spectra and related databases, as well as the interaction between titanium-aluminum-chromium-niobium-oxygen particles, still require his decision to build these. To talk about the composition of titanium alloys like the British, it is not complicated. Ti-47Al-2Cr-2Nb. Referred to as 4722. For Chang Haonan, it is a classic product of a generation. So much so that when he saw the results for the first time, he was not surprised at all. Because even in the previous life, its improved version 4822 was the first high-temperature resistant titanium alloy put into practical applications in the world. It''s just used by General Electric on the GEnx, which is the 787 engine. As for the material itself, it was developed earlier. Now it seems that the reason why it has not been applied in advance is probably because it encountered great difficulties in processing. After all, without him, the Trent 900 would most likely have to replace the low-pressure turbine with a nickel-based alloy. Therefore, after the initial preparation phase, Chang Haonan was already ready to overcome difficulties. But even so, what happened next was still somewhat beyond his expectations At the earliest, Chang Haonan''s plan was to first use other brands of titanium-aluminum alloys to test algorithms and processes, form a database like nickel-based alloys, and then try to process 4722 materials. After all, the British gave them a limited number of semi-finished blades. Although the contract stipulates that normal use during the trial production process will not be included in the processing loss, and Rolls-Royce can also provide new samples later. But not to mention the delay in international mailing, more importantly, the terms also stated that all processing waste must not be disposed of randomly and must be returned to the British side. On the surface, this is not surprising. But it means that if the entire process development process is tested using materials provided by Rolls-Royce, then the other party may be able to infer some useful information from these waste products. However, after all, the initiative in this kind of matter still lies with China. Therefore, Chang Haonan thought about using other brands of titanium alloys that can be produced independently for preliminary experiments. It is equivalent to giving the other party only one answer in the end, and the process is a big "omission". Anyone who has gone to school should understand this kind of lethality. However, according to the process parameters fitted through this process, cracks appeared during the first sample test. Its not even the kind of microcracks that require a microscope to see clearly. But macro cracks... "Mr. Chang, according to the test results, the internal shape of the hole is basically up to standard, but the appearance of the hole wall is very unoptimistic." Lu Qingsong, who was also sent from Institute 606, came to Chang Haonan''s temporary office with a test report and a sample in his hand: "After the probe goes in, you can see very obvious warpage and defects such as burrs. Some of the cracks that spread out from these defects can even penetrate the gap between two adjacent air film holes. part" "Let it go first..." The latter was also holding a photo of the sample in his hand and was having trouble. After seeing him come in, he sighed with a headache, and then pointed to the only place on the desk that was not filled with information: "Also, let the trial production team pause for a moment. There are obviously some things that we haven''t noticed, and they were ignored during the calculation process." "good." Lu Qingsong nodded, but did not turn around and leave immediately. As an engineer who has been fully involved in the development of ultra-short laser processing technology, he has some ideas of his own: "Mr. Chang, our next step is to adjust the calculation process and fitting parameters first?" But Chang Haonan shook his head: "The processing results this time have a bit of a deviation. It may be difficult to adjust the process parameters alone. The process needs to be adjusted." Having said this, he leaned back in his chair, looking a little hesitant, obviously struggling with something. After a while, he suddenly continued: "We need to adjust our strategy... Let''s work with Researcher Hang to understand the material forming mechanism and process first!" (End of chapter) Chapter 1031 Laser selective melting molding Chapter 1031 Laser Selective Melting Molding Concentrate your efforts on conquering the material itself first? After hearing Chang Haonan''s thoughts, Lu Qingsong''s first reaction was disbelief: "This is indeed more reasonable from a research perspective, but Mr. Chang, might it be a little too late in terms of time..." Processing on the basis of already obtained materials is much less work than starting from scratch... to develop a new material halfway. Including the reverse engineering of 4722 alloy according to the original plan, it is also a relatively long-term task. A sudden adjustment to the plan now will have a big impact on the entire project. But right now, Chang Haonan really has no choice. "no way." He replied slightly helplessly: "It is true that we are pressed for time, but since the attempt to use other titanium alloy substrates for testing and then push out the results has been proven to be unworkable, if we want to obtain the process parameters in a short time, we can only directly obtain enough 4722 alloy, establish a separate database and fitting formula for this series of materials, and the results will definitely be accurate. " "Now the easiest way to get enough 4722 alloy is to ask Rolls-Royce according to the contract, but I don''t want to return all the processing waste to them, because too much will leak out... so , we can only make two preparations. "On the one hand, we should focus most of our efforts on researching the 4722 alloy material itself. Although we may not be able to make blades exactly the same as Rolls-Royce in a short time, it is best to come up with base materials that meet the requirements, so that our computational modeling can The process can be completed using your own materials, and there is no risk of leakage..." "Of course, on the other hand, the turbine processing task of the Trent 900 itself is definitely still the most important, so we cannot bet all our money on it. If the alloy forming process still does not improve by the end of this year, then we can only choose to ignore the British I want the second batch of follow-up samples..." After hearing this explanation, Lu Qingsong nodded solemnly. The principle of technical blockade is the same. The main purpose is to increase the cost and time for others to catch up. As long as the latecomers technological iterations are not as fast as mine, the entire market will remain in a monopoly state. Therefore, if possible, everyone wants to prolong this process as much as possible. After a slight hesitation, he continued: "Then if Siro Company wants to know the progress...you know, it''s Party A over there, so we can''t not reveal even a little bit of information..." Chang Haonan''s answer was almost without thinking: "It is said that the process parameters are being adjusted... In addition, the several sets of scrap products processed in this round of testing can also be dismantled and handed over to them in several batches. It should be enough for two or three months..." Just when the two of them were ready to deal with the worst-case scenario. A figure appeared at the door of the office at just the right moment... It''s Hang Zhibin. "Mr. Chang, and Gong Lu." He held a folder that was almost the same as the one in front of Chang Haonan and walked in slowly: "We trial-produced a batch of Ti-47Al-2Cr-2Nb based on the process we deduced from the data." This sentence really shocked Chang Haonan and Lu Qingsong, who were still discussing this matter just now. Especially the former. I almost jumped out of my chair: "Has trial production been produced? Bar or profile?" We really can''t blame Chang Haonan for being startled. Mainly because less than 20 days have passed since the start of the research. In such a short period of time, even developing a complete process based on existing experience is a bit difficult. Not to mention the output material itself. Even with the help of the system, it would not be possible so quickly... Looking at the two people with shocked faces, Hang Zhibin also showed a blank expression for a moment. Then I realized that the other person would be mistaken. He quickly shook his head: "How can there be profiles and rods... It''s just a batch of metal powder made using the aerosolization process we developed in the past..." After hearing his explanation, Chang Haonan breathed a sigh of relief. While he was glad that the scientific principles still existed, he also felt a little regretful. Of course, even for powder, 20 days is a very good progress. Therefore, he certainly cannot express his regrets: "It doesn''t matter. I have read the information provided by Rolls-Royce. The blade blanks are produced using laser selective melting molding technology." "With metal powder, at least there is a basis for further research on the molding process... In addition, I Helu Gongzhi is also considering adjusting the R&D plan and concentrating our efforts with you to tackle base material production technology. " This laser selective melting molding process is a type of 3D printing. Its not really a new technology. It has been used in small quantities since the late 1990s. However, at the beginning of the 21st century, it was not possible to directly produce finished products from powder as was done later. They always create a rough blank first, and then carry out subsequent precision processing using traditional processing methods. Although Hang Zhibin still doesn''t know what happened specifically, for him, it will definitely not be a bad thing to have such two big guys joining. So he nodded happily. Then, he reported another progress quite excitedly: "Actually, after the powder was produced, we also conducted two rounds of powder spreading and molding tests...but the results were not very good, so they were not included in this report." "But since Mr. Chang, you are going to take charge of this personally..." Hearing this, Chang Haonan''s eyes lit up again. He didn''t even wait for the other party to finish speaking, and said hurriedly: "Tell me more specifically!" "Well...it''s trial production, so what we make are 10mm cubic samples, but only the upper and lower surfaces of the samples are relatively flat. Obvious warping, burrs and unfused defects can be observed on the side walls, especially the side edges. Then From these shortcomings..." Since he didnt bring the sample test report, Hang Zhibin could only describe it while organizing the words, so it was inevitable that he was a little stuck. However, what he said was quite familiar to Chang Haonan. So much so that he interrupted the other party midway: "Are you trying to say that the defects at these side edges are the source points, resulting in many macroscopic cracks that can be clearly observed with the naked eye?" Hang Zhibin nodded immediately: "right" Then I realized something immediately: "Wait...Mr. Chang, how do you know?" "well" Chang Haonan sighed: "Because I also encountered almost the same problem here." With that said, he handed the test report that Lu Qingsong just brought to Hang Zhibin on the table: "Take a look, there are pictures on it, does it follow you..." Chang Haonan''s voice stopped abruptly halfway. Because at this moment, an idea flashed through his mind quickly, sparking a series of inspirations. Laser selective melting and molding properly utilizes the thermal effect of laser. The ultra-short laser processing on his side is to reduce the thermal effect as much as possible. But now both sides have the same problem... As we all know, the direct cause of cracks is basically that the residual stress is greater than the tensile strength of the material itself. However, current picosecond-level lasers are actually not enough to avoid all thermal effects. In order to solve this problem, when Chang Haonan originally developed ultra-short laser processing equipment, he immersed the workpiece to be processed in liquid. If you have to say where the two processes of molding and processing are similar, it would probably be this process. Its not that the cooling methods are the same Of course it is not possible to fill liquid during powder molding. However, the higher temperature difference makes its heat transfer efficiency close to that of liquid cooling. That is, the cooling rate is close to In other words, the stress itself is likely created as the material cools. In addition, gaps will be formed at the boundary between the unmelted powder and the molten powder, which increases the surface freedom. Therefore, cracks are more likely to occur on the side of the sample. In contrast, since the upper surface is composed of the last molten pool, the surface quality is better and is less likely to become a source of cracks. This can explain why the upper surface of Hang Zhibin''s cubic sample is relatively smooth, while the side edges are in the worst condition. "Researcher Hang..." After a long time, Chang Haonan slowly said: "I seem to have... thought of a solution." (End of chapter) Chapter 1032 Luoluos clever plan to calm the world Chapter 1032 A clever plan to calm the world... If the cause is really a cooling rate problem, then for Chang Haonan''s processing tasks, he only needs to increase the liquid preheating temperature and lower the cooling rate. Of course, this is just a principle level. In specific implementation, considering that the thermal conductivity of the originally used neutral salt solution is not small, and if the preheating temperature is high, there will be evaporation or even boiling problems, there are still some areas that need to be overcome. Adding another set of pressurizing equipment for this will further increase the complexity of the system. But if I change the type of liquid, I cant seem to think of anything that particularly meets the requirements. In terms of material molding, it is more complicated. For traditional metallurgical processes, a dedicated stress relief annealing process can be set up. However, laser selective melting, as a powder molding process, actually cools down while processing. In other words, even for a 10mm cubic specimen, the cracks that should be formed have already formed before the entire molding process is completed. Therefore, it is definitely too late to anneal afterwards. Only real-time post-processing can be considered. That is, annealing while processing. Fortunately, annealing is essentially a process of slow heating and then slow cooling. Theoretically, another annealing laser can be set up to follow the processing laser to complete this operation. And if we want to think of other methods, it is a matter of metallography. According to the previous material characterization and the calculation results of Chang Haonan, the eutectoid reaction + is very sensitive to the cooling rate. Therefore, more 2 phases with a close-packed hexagonal lattice structure will be formed inside the matrix, and this structure will slip. There is less 2 phase and it is a typical brittle phase. Therefore, the tensile strength of the area containing more 2 phase is lower. When the residual stress is large, it is more likely to become the initiation and expansion area of ??cracks. In other words, reducing the proportion of 2 brittle phase can inhibit the occurrence of cracks. However, the process of melting and molding itself will affect the phase composition of the final product, so it will not be much simpler than the idea of ??annealing while processing... In short, there is no way to solve the problem by just doing it. But at least the research direction can be determined. After clarifying his thoughts in his mind, Chang Haonan quickly tidied up the table, and then briefly described his thoughts to the other two. Next, there was a long silence... In the end, it was Lu Qingsong who spoke first: "Although there is no evidence...but at least the speculation is reasonable." Hang Zhibin also said immediately: "We can specially produce a batch of samples with molding progress ranging from 20% to 90%, and then use them for scanning electron microscopy inspection and X-ray diffraction analysis, so that we can quickly judge the two intermediate speculations of Mr. Chang. That is to say, cracks are generated at the same time during the molding process, and the content of the 2 brittle phase will affect whether the difficulty of crack generation is correct. " "If these two contents are correct, then although it is not particularly rigorous, it can be basically considered that the crack generation mechanism mentioned by Mr. Chang before is no problem." If there is no problem with the mechanism, then there will be no problem with the subsequent solution. Therefore, the three people quickly reached an agreement on the matter. "The next step..." Just when Chang Haonan was about to formally arrange the follow-up work, Hang Zhibin suddenly changed the subject: "Wait, there is one more thing..." Chang Haonan and Lu Qingsong turned to him at the same time. "This process requires multiple comparisons with the samples provided by the British side, and we originally had to conduct comparative tests on the machining properties of the materials later..." Hang Zhibin explained: "So, we need more samples, I mean...the semi-finished products samples provided by the British side." Hearing this request, Lu Qingsong hesitated. "But now the quantity is not enough..." However, Chang Haonan agreed readily: "It doesn''t matter, just ask Luo Luo for the second batch of samples." "ah?" Lu Qingsong looked at Chang Haonan with a confused expression. The latter replied nonchalantly: "The contract does not stipulate the specific use of these samples, it just requires us to return them after testing." "We don''t want to use it because we are worried about leaking secrets, but researcher Hang''s test is to reverse engineer them, and there are no secrets to leak..." The confusion on Lu Qingsong''s face suddenly turned into realization - I am still trapped by my fixed mindset... Soon, Rolls-Royce received a request for a second batch of processing samples. Moreover, according to the contract, the first batch of consumed samples was also returned to Ciro Company at the same time. The latter brought it to the UK as a human express delivery as quickly as possible - The low pressure turbine assembly is smaller and the number of samples themselves is limited, so there is no need to bring a cargo box like last time. The person in charge of this human flesh delivery was Adam Whittle, one of the two British representatives of Ciro Company. As soon as he got off the plane, he was taken directly to Rolls-Royce''s headquarters in Derbyshire. Including Lapworth, Bodie, and the head of the process team, Nate McGill, almost one-third of the supervisory leaders of the Trent 900 project team are already waiting here. This posture directly surprised and delighted Whittle, who had been away from Luo Luo''s inner circle for many years. "Is this the waste produced by the Chinese people during process testing?" Lapworth carefully pulled out a leaf parison from the sample bag, frowned, and asked. Although she was speaking to Whittle, the latter was clearly not high on the priority list for answering the question. McGill, who was sitting next to him, leaned over to take a look and gave a direct answer in the affirmative: "That''s right, we put special markings on the blade root and blade tip before shipping. This has obviously not been dropped." "no" Lapworth raised his forehead helplessly: "I mean...the nickel-based alloy blades they came out with last time were perfect, but what about this one..." As she spoke, she turned the blade around and showed it to the others around her. Then, there was a sound of inhalation in the conference room - Almost the entire upper surface is covered with tiny cracks visible to the naked eye. You don''t even need any testing equipment to know that it is definitely a waste product. Its just as good as the previous samples in the trial production process. "I would say this is normal." McGill is responsible for process research and development, and has a very clear understanding of the difficulty of this process: "The processing characteristics of titanium alloys and nickel alloys are very different. They obviously have no experience in this area in the past, so they can only explore from scratch..." Having said this, he took the leaf in his hand, looked at it for a while and then showed a smile: "And, only in this way can we fully understand the research and development process of the Chinese people, and thus deduce the specific process routes they use, and even... process parameters." Bodi, who had been silent just now, frowned: "Don''t rely too much on these, McGill." "You know, the results obtained by such backward reasoning may not be completely correct sometimes... and may even interfere with the normal research and development process." In fact, he was not very supportive of reverse engineering at the beginning, but McGill persuaded the director of the Trent 900 project, who was also the direct superior of all of them, to turn his suggestion into a decision. After hearing this, the latter returned the leaf in his hand to Lapworth, while wiping the unknown liquid on his hand and said: "So...I divided my staff into two groups. One group is responsible for cooperating with Oxford Optical Instruments and continuing forward development, and the other group is working with me to try to see if they can find anything useful from the Chinese test samples. thing." "Judging from the current situation, the Chinese people...are not aware of our methods..." (End of chapter) Chapter 1033 The power of computational materials sci Chapter 1033 The power of computational materials science ?Just when everyone at Rolls-Royce was wondering how to reversely deduce the technology used by China based on trial production samples. Haofa Group has also produced results on the characterization analysis of the crack morphology and formation causes of titanium-aluminum alloy cubic specimens... "Mr. Chang, these are the XRD patterns and EBSD phase diagrams of samples with different degrees of completion from 20% to 90%." Hang Zhibin hurriedly rushed into Chang Haonan''s office and put several pages of test reports that were still steaming on the paper directly into the latter''s hands. Before Chang Haonan could take action, he turned directly to one of the pages: "You see, on the section where the fracture has occurred, that is, point 1 and point 2, the atomic percentage of titanium and aluminum is close to 2:1, and the presence of chromium and niobium is small, indicating that the phase, B2 Both phase and 2 phase are present, and the proportions are relatively balanced. "In the part of the matrix that is far away from the crack, that is, at points 3 and 4, the ratio of titanium and aluminum atoms decreases to 1:1. In addition, the content of chromium and niobium also increases accordingly, indicating that at this time The proportion of 2 phase and B2 components increased significantly, while the phase decreased accordingly..." If we were to leave it alone, if we were "surprised" like this and immediately instilled a lot of representational results, we would have to wait for a while before we could hear them. Fortunately, Chang Haonan was already thinking about this matter in his mind at the moment, and his own ability to read pictures was first-rate, so he could keep up with the other party''s thinking. After Hang Zhibin finished a long paragraph, he went directly to the final conclusion: "So it can be proven that during the crack formation process, the eutectoid reaction of + occurs simultaneously at the cracking position!" "That''s right!" Hang Zhibin nodded quickly: "It is completely consistent with your previous speculation. As long as the proportion of 2 brittle phase in the alloy can be reduced, the tensile strength inside the material can be increased and the stress generation can be reduced at the same time." "Our current plan is to preheat the substrate during the molding process. On the one hand, it suppresses the peritectic reaction and reduces the generation of 2 phase. On the other hand, it can also control the cooling rate to a certain extent." Compared to his excitement, Chang Haonan''s reaction was quite dull. In fact, a few days ago, he had improved the formation of cracks by increasing the temperature of the immersion liquid during the drilling process. Therefore, this result can be regarded as adding a layer of theoretical insurance at most, and it will not surprise him. "Substrate preheating is only one aspect. In addition to cracks caused by cooling too fast, 4722 has another problem during processing." Chang Haonan stood up as he spoke, picked up the thermos from the small table next to him, poured two glasses of water into each, and then handed one of them to Hang Zhibin in front of him: "You have just conducted EBSD and micromorphology observations, and you should be able to find that during the titanium-aluminum alloy forming process, because the local temperature of the molten pool will be higher than the evaporation point of aluminum, part of the gas containing aluminum will evaporate and be lost, and Those gases that dont have time to evaporate will form small holes when they solidify. "Large residual stresses will accumulate near these holes. Although the distribution is not as extensive as the stress caused by cooling, it will also induce cracks around it, and since this kind of hot crack does not produce secondary cracks during the expansion process, the main crack will The development will be more obvious. "Am I right?" "Ah...ah?" Hang Zhibin had just raised his hand in the air, but when he heard Chang Haonan''s analysis, his whole body froze in place as if he had been hit by a thunderbolt. Because this is exactly what he wants to tell Chang Haonan next. It is also the most important finding in the report just now. result The other party knew it in advance without even looking at it? About half a minute later, Hang Zhibin reacted and quickly took the cup into his hand: "This...this is also what you surmised?" You know, this problem is unique to the thermoforming process. The cold working process cannot reach the melting point of titanium alloy at all, and it is impossible to even observe the phenomenon. "How is it possible..." Chang Haonan smiled and waved his hand. "oh" Hearing that Chang Haonan''s explanation was the same as what he had just thought, Hang Zhibin finally breathed a sigh of relief and waited for the other party''s further explanation. But before he could take his next breath, Chang Haonan continued: "I calculated this." "" Hang Zhibin held the cup and didn''t know how to respond for a while. I wanted to lower my head and drink water tactically to delay, but I forgot that the water was just poured from the thermos bottle... Fortunately, Chang Haonan was standing in front of the window with his back to him at the moment. He didn''t notice that the other party almost burned his tongue. He just continued to introduce his conclusion: "Through molecular dynamics research results, at higher temperatures, the expansion rate of aluminum oxide is much slower than that of titanium oxide with similar thermodynamic stability. As a result, titanium alloys containing aluminum cannot rely on oxidation like aluminum alloys containing titanium. The aluminum film is used to protect itself, and the chromium and niobium in the 4722 alloy are added as antioxidant elements. " "But these two elements exist in the matrix alloy in the form of solid solution, thus affecting the generation mode of alumina. This determines that during the process of heating, oxidation and melting, aluminum will be more easily lost in the form of gas..." When he heard this, Hang Zhibin had already put the cup aside, took out a pen and paper and started recording - When he first met Chang Haonan, he once said that he had studied some computational materials science. This was not a compliment. Although I didnt really study it well at the time, one thing was very certain. Traditional materials science is based on analyzing the causes of phenomena and then working backwards to summarize the rules and then generate theories. The research process of computational materials science is the opposite of this. First there are theories, then laws are deduced, and finally phenomena are obtained. In other words, although the current application scope of this discipline is still relatively narrow, as long as the application is successful, it means that the problem has been discovered and a solution to the problem has been found. Like it is now. "We will further adjust the forming parameters of laser selective melting to minimize local temperature rise, which causes aluminum to be evaporated." Hang Zhibin wrote the last few words in the notebook while responding. Then, retract the pen tip with a click. Adjusting parameters is just a stop-gap measure. Chang Haonan sat back on his chair and said: "In the long run, as I just said, chromium and niobium are added to improve the oxidation resistance of titanium alloys, but even if the temperature is controlled perfectly during the molding process, it will cause aluminum to concentrate on the upper surface of the final molding, and The content of other parts is reduced, which in turn has an adverse effect on antioxidant properties. "I don''t care what kind of coating the British are going to use to solve this problem, but on the one hand we are completely missing this part of the information. On the other hand, even if there is a coating, it is not a bad thing to increase the antioxidant capacity of the substrate itself." Hang Zhibin thought for a while: "So, you want to improve on the British material?" If anyone other than Chang Haonan...and Academician Cao Xiaochun were sitting in front of him, he would probably have dropped his pen on the table The study of materials is not just about changing the element composition or the ratio. Now they are not even sure about the process parameters of 4722, and they even need to complete the remaining parts through a lot of experiments. In this case, just thinking about improving materials is almost equivalent to trying to run a marathon without even learning to crawl. Totally whimsical. Not only does it fail to achieve the purpose of improving performance, but it may even fail to achieve the performance that others had before improvements due to insufficient understanding of the original materials. There is even a high probability that what you get is pure waste. However, considering Chang Haonan''s actual situation, Hang Zhibin clicked again and pressed the pen tip out. "Exactly." Chang Haonan knocked on the table with excitement on his face: "I randomly tried using several rare earth elements, and accidentally discovered that replacing a certain amount of chromium and niobium with trace amounts of ytterbium and cerium can refine the grains, purify the matrix, and improve the adhesion of the oxide film. " "In addition, due to different solid solution conditions, these two elements, especially ytterbium, can also promote the selective oxidation of Al, thus reducing the difficulty of local temperature control in industrial production." As he spoke, he took out the calculation results that had just been sent a few hours ago from the file box and handed them to Hang Zhibin: "Of course, I''m just providing an idea. You still have to do the specific experimental things, so this is the next research direction." "As for now...in order to restore the British 4722, you really still have to dig into the process parameters of laser selective melting. I am in a hurry..." (End of chapter) Chapter 1034 The British four-stage problem-solving s Chapter 1034 The Britishs four-stage strategy for solving problems After determining the specific direction to solve the problem, Hang Zhibin and others quickly returned to work. About a month later, they finally succeeded in producing a bulk 4722 titanium aluminum alloy substrate that met the requirements. Although there is still a big gap between the upper limit of volume, product density and molding accuracy and the same material from the British, Chang Haonan originally did not really want to use these domestic base materials to directly produce blades. If it is just used as a basic consumable in the process development process, the requirements are actually not that high. Therefore, when the second batch of blades supplied by Rolls-Royce arrived, he had almost completed the development of the basic database and process parameter calculation method for 4722 alloy. The next task is basically the same as when dealing with nickel-based alloys. Of course, in order to meet higher production standards, the requirements for the precision of the processing parameters of the low-pressure turbine disk will also be higher. It will inevitably take longer to determine. But no matter what, the hardest part is over. As for the high-pressure turbine part that was assigned to Zhang Zhenhua from the beginning, the development process was even more uneventful. There were some minor setbacks in the process, which were basically due to the lack of experience of a few key members. It wasn''t even Chang Haonan''s turn to intervene directly, but it was solved directly in several technical seminars. In the end, it brought about a happy trouble - Due to the requirements of Rolls-Royce headquarters, the subcontract signed between Haofa Group and Xiluo Company was dated at the end of the year. However, it is not yet November, and the former has already produced a product that has been fully tested and qualified... So much so that it can''t be delivered at all. On the other hand, the ultra-short laser processing equipment provided to Haofa Group is still in the process of debugging. Even if it does go into mass production, it will still take several months. According to general principles, if Party A does not sign and mass production does not start, then the project team must be maintained and cannot be disbanded. Chang Haonan has other things to be responsible for. For example, the Air Police 2000 has already started to be renovated at Haofei, not far away. He needs to install his own Air Force data link system for future testing. But other people in the R&D team certainly cannot run away casually. Especially Hang Zhibin and his party who came from 621. Out of concern about the situation early next year, Chang Haonan didn''t want them to return to Beijing at this juncture. So, I always have to find other related things to do. So, at the last seminar in October, which was most likely the last seminar before samples were delivered, everyone began to brainstorm on this matter. In fact, considering the time at the end of 2002, and the fact that the Trent 900 is the world''s top high-bypass ratio turbofan engine, the first thing that almost everyone thinks of is the Turbofan 20. According to the plan, after Haofa officially started mass production of Rolls-Royce orders and the successful first flight of SeA650, it was time to start the Turbofan 20 project based on the experience accumulated from these two projects. It is still the approach of concentrating our efforts on attacking difficult problems, with Haofa as the main force, supplemented by several brother units such as Shengjing, Rongcheng and Zhucheng. It just wont be as big as the turbofan 10 back then. Therefore, Hang Zhibin and others immediately stated that the improved titanium-aluminum alloy they were developing could be used as a pre-research project for the Turbofan 20, and they would consider using the rear 2-3 low-pressure turbines of the Turbofan 20 as well as the first two-stage high-pressure compressors. Material replaced with titanium alloy. Referring to the situation of Trent 900, it can probably bring about a weight loss of about 160-200 kilograms. You know, an engine with a thrust volume of 13-15 tons such as the Turbofan 20 has a dead weight of only about 3 tons. This is equivalent to a one-time reduction of about 1.5%. Without changing the overall engine design, this is already a very impressive number. Even Chang Haonan was inevitably a little tempted. However, he ultimately gave up on this somewhat radical proposal. After all, the low-pressure turbine and high-pressure compressor are both components of the core machine. Once they change, it will be a big move. The core machine of the Turbofan 20, which relies on the Turbofan 10, is supposed to have a short R&D cycle and focus on training the R&D team. And a model that doesnt carry too much risk. Even the Y-9 transport aircraft that is expected to be equipped with turbofan 20 has already entered the structural strength verification stage, and wind tunnel testing will begin soon. Theres really not a lot of room for trial and error. The new titanium alloy is still at the stage where the figure has just been dipped in ink. It may take some time to truly complete the research and development and improve the molding process to a level sufficient to produce turbine blades. This does not include the fact that due to the different surface properties of different materials, the heat-resistant and anti-oxidation coatings originally used for nickel-based alloys have poor adhesion on titanium alloys. Therefore, new coating systems need to be developed, as well as domestic heat-resistant coatings for titanium alloys. Traditional processing methods such as pressure rolling, casting, and forging are also not researched enough... In short, if you want to open up a new branch line in the manufacturing industry, it cannot be solved by a few units in three or two years. Including several other ideas related to Turbofan 20, they were all rejected for similar reasons. In the end, Chang Haonan even thought about how to directly carry out the preliminary research and development of the Turbofan 20 in the name of the current "Trent 900 Turbine Production Project Team". Anyway, he has done similar things before. The only problem is that this project team uses British funds after all, so it may not be easy to do the accounting later... Fortunately, at this time, Ren Bingda, who had been silent just now, suddenly spoke: "Mr. Chang, I remember when we first received the technical information from the British, you seemed to have said that the Trent 900 had certain design flaws?" Chang Haonan was slightly stunned by this sudden change of topic: "Not exactly..." After hesitating for a moment, he gave an uncertain answer: "It is true that it does not have an anti-overrotation design in the turbine structure, but I have not seen the complete design of the Trent 900, so I am not sure if there are other alternatives..." "Then... do we need to tell Luo Luo about this and then make an improvement plan based on this?" Ren Bingda asked: "On the one hand, it is to train for the Turbofan 20, and on the other hand... it is also to prevent the Trent 900 from having an accident in the future and throwing the blame on the turbine blades we produce." "hiss" Chang Haonan immediately made a tactical retreat. When he first heard the first half of the other person''s question, he was almost ready to refuse without thinking. Rolls-Royce is not a brother unit under the same group. It is just a business cooperation. The main theme is to give up helping others and respect the fate of others. Just do what is stipulated in the contract and that''s it. But Ren Bingda''s subsequent explanation forced Chang Haonan to start thinking carefully. With the British and Japanese people''s peeing habits, if something happens, at least until the investigation results come out, there will be some back-and-forth. And the investigation of aviation accidents... takes a long time. As a new player that has just entered the aviation manufacturing industry, China has no choice but to guard against it for the sake of reputation... But then again, if Luo Luo solves the problem like this, on the one hand it will be a bit of a loss, and on the other hand it may not be a good outcome. As the saying goes, there is no such thing as a good doctor. Some defects will only attract attention when they actually cause problems. If you say it in advance, others may think you are looking for trouble. "you''re right." Chang Haonan nodded: "However, the improvement plan has to be done, and after it is completed, it should be left in our own hands." "As for design defects... we don''t need to mention them specifically. We can wait until the samples are delivered later and attach a risk warning statement to the production documentation." "It would be great if the British paid enough attention to this matter. Whether they come to us for a solution or they handle it themselves, we play an important role in it. Even if this matter is used for publicity in the future, no one will pick it. Nothing wrong. "If they didn''t pay attention, they would have kept it in writing anyway. If something happens in the future, just go over the documents signed by both parties and leave the rest of the matter to the Japanese and British to argue..." As soon as he finished speaking, Ren Bingda immediately heard the hidden meaning: "Do you think the British might not pay attention to this issue?" This guess was completely beyond the expectations of most people. "It''s not that bad..." The muscles on Zhang Zhenhua''s face twitched a few times, obviously very surprised: "Rolls-Royce is, after all, a long-established aviation company... There should be some bottom line when it comes to safety." Several people around him also expressed similar attitudes: "It''s okay to say it was an oversight, but if we have pointed it out, we should change it anyway..." "Yeah, I think too..." But Ren Bingda, who had dealt with the British the most, shook his head and insisted on his opinion: "No, you don''t understand the British..." In the end, everyone turned their attention to Chang Haonan again. Faced with this question, the latter was a little hard to answer for a while In fact, there was another reason why he made the above decision. That is, if the Trent 900 really has problems because of this defect, it will be a good thing for China... Due to the existence of that risk warning statement, the whole world will soon know that a Haofa Group from China has issued a warning long ago. Comparing the two, it is simply free advertising. You know, for an industry giant like Luo Luo, the opportunity to make mistakes is not always available... But this kind of thing is definitely not suitable to be said in public. Therefore, he organized his language and decided to end this topic with a classic joke: "The British generally deal with this problem in four steps." The first stage is to declare that nothing happened; The second stage is saying something might happen, but no action should be taken; Stage three, which says maybe its time to take action, but we cant do anything; "Stage 4, admitting that maybe something could have been done, but now it''s too late..." (End of chapter) Chapter 1035 Yes, we have already studied it Chapter 1035 Yes, we have already studied it The next month or so was uneventful. The project team originally responsible for researching the production of the Trent 900 turbine film hole was finally pulled to learn the design experience of large bypass ratio engines in advance to prepare for the upcoming turbofan 20 project. Chang Haonan himself, because he had to take care of the installation and debugging of ultra-short laser processing equipment, did not return directly to the capital. Instead, he went to Haofei Group to start preparing the relevant hardware of the data link system for Air Police 2000. There is a good place in Haojing. That is, you can find almost all industries related to aviation manufacturing locally. Everything from component production to flight testing Thanks to this, although the Air Police 2000 has just started to be renovated and cannot fly into the sky, Chang Haonan still used his influence to find a J-11BS and a J-10AS prototype that were undergoing test flights, and used advection to The airship completed basic air relay communication testing. As for Rolls-Royce Although it is Party A, it is still separated from the Haofa Group by one layer after all. In addition, it has to be kept hidden from the higher ups, and it is not easy to travel to China every now and then. The only way to know the progress of the project is based on the occasional written reports from the Xiro Group. . However, as we all know, the accuracy and timeliness of written reports... Not very optimistic. In short, from the British perspective, China should still be in the midst of an arduous process of process development. After all, the latter never mentioned the third batch after taking away the second batch of semi-finished raw materials. So it is reasonable to speculate that we may have encountered some technical difficulties and are currently working on them... In this way, time came to the end of 2002 in a flash. December 1 is the day when Haofa Group and Xiro Company officially signed an agreement. Of course, it refers to the date written on the agreement. After this day, it means that Haofa Group can deliver goods in a legitimate manner. Considering that the production of turbine blades is still a bit difficult after all, it is unlikely that orders can be placed and delivered on the same day, so Chang Haonan "kindly" waited an extra week... December 9th. Monday. Brin and Whittle had just returned to work after enjoying the weekend vacation. Before they even had time to enter their respective offices, they noticed several figures following them. The leader among them is Ren Bingda. Theoretically, this Ciro company has a total of four leaders of the same rank. In addition to the two British people, there were also two Chinese. Ren Bingda is one of them. He even has a separate office. It''s just that I haven''t used it a few times since the company was founded. After all, the nature of Xiluo Company has always been foreign trade...or to put it more bluntly, it mainly imports aircraft engines and parts, so there was no daily business related to China in the past. Therefore, after seeing Ren Bingda, Brin and Whittle almost immediately realized that the other party must be looking for them. "appoint!" "Good morning!" Brin took the initiative to take two steps forward and called out to Ren Bingda who had just stepped onto the last step. Only then did he notice that the latter was holding a document bag under his arm. It''s bulging and obviously contains a lot of content. "Is this...the project progress report from last week?" At this time, Whittle came over from a short distance away and stared at the document bag and asked. Several previous reports they had received were delivered in similar bags. It''s just that the thickness is not as exaggerated as it is today. "Progress report..." Ren Bingda held the document bag in his hand, glanced down, and then smiled: "In a sense, it is." At this time, Brin was leading a group of people towards his office while still teaching Ren Bingda how to fish: "Actually, it''s enough to submit this thing once a month, and no one at the headquarters will read it..." In the past few months, although Haofa Group''s reports have been irregular, they have generally been between 1 and 2 weeks. This frequency really amazed the two British people. "This time is different." Ren Bingda tilted his head slightly and looked at the three attendants following him. Each of them was carrying a black suitcase of the same style. It just looked too much like an ordinary briefcase, so it wasn''t noticed just now. "This is...a progress report on the entire project." He looked at Brin who was opening the door and added further. The entire project The latter''s face was originally filled with a relaxed smile. But at this moment, it solidified. "you mean" Brin turned around suddenly and looked at Ren Bingda in shock. I even forgot to turn the door handle... "Yes, our samples are ready for delivery." Ren Bingda nodded and replied calmly. It''s like saying that I ate egg fried dough sticks and soy milk this morning. For a moment, it seemed as if even the light coming in from the window had stopped. Brin looked at Ren Bingda, and then at Whittle, who had the same dull expression next to him. At this time, he finally saw the hard box in the hands of the people behind him, which was obviously one size larger than the briefcase: "Did you bring the samples?" "How is it possible..." Ren Bingda shook his head speechlessly, and directly turned against the customer, helping Brin, who had not yet fully recovered, push open the office door: "These are just handover documents. The samples are in our warehouse and you can check them at any time." "Of course, the semi-finished raw materials that were lost during the process of process development are also preserved, no less than one piece." Two British people with numb scalp walked into the office stiffly. If Ren Bingda hadn''t stopped him, Brin would have even subconsciously wanted to sit on the sofa prepared for visitors. "But...it''s only December 8th?" Whittle fared slightly better than his peers, at least remembering the day: "Moreover, in the report two weeks ago, you also said that you were studying the processing parameters of titanium-aluminum alloy at that time, and it is expected that the entire project will take another 3-4 months to complete?" You know, the two of them have already compiled this year''s work report, which does not involve anything about the delivery of turbine parts samples. Doing this would require almost a complete rewrite. "You also said it was two weeks ago." Ren Bingda sat on the chair opposite his desk, minding his own business: "After that report was written, often... uh... we happened to make some technological breakthroughs." "In short, the research has been completed now. As for production...when the technical parameters have been determined, that is not a problem." As he spoke, he turned the file bag around and placed it in front of Brin on the other side. It even comes with a pen: "You two, please confirm the contents of the report as soon as possible. If there is no problem, please sign it, and then we will prepare the relevant matters for shipment to the UK." "Now that we are approaching the end of the year and Christmas, the transportation capacity is already relatively tight. It is best not to delay it for a moment, otherwise if it comes to next year, we will have to charge storage fees." He said in a slightly joking tone. As the words fell, several people behind him also opened their suitcases, and then arranged the stacks of project description documents inside in order. A full table was laid out. Until this time, Brin and Whittle finally woke up from their dreams. They did not bother to think about what the Chinese people had done in the past half month. Instead, they found the secretary as quickly as possible, and then divided the documents into technical and administrative categories. Two copies, read them separately... (End of chapter) Chapter 1036 Warning from China Chapter 1036 Warning from China In the information age, news always travels faster than logistics. George Brin and Adam Whittle are just two ruthless rubber stamp tool people. After determining that the documents provided by China had no obvious legal and technical risks, they took the first step to electronically copy them, and the current slightly shocking The project progress was submitted to the UK headquarters. As for sample identification, technical testing, compliance review... Stop making trouble, Ciro Company is just an empty shell with no three-digit employees in total, and most of them are scattered in various airports and warehouses... It''s impossible to do this. Therefore, the British side, which is 8 hours different from China time, also received hundreds of materials from Ciro Company on the day of work on December 8. Rolls-Royce''s reaction to this... Quite quickly. The news was received at noon. That night, before all the documents had even been printed out, prominent figures in the Trent 900 R&D team had already flown back from the UK and even all over Europe for meetings. The one who was most irritated was obviously the person in charge of the process team, that is, the brilliant man who first proposed using the semi-finished product waste from China''s research and development process to deduce the specific process of the other party, Nate McGill. Because even though he hasnt seen what the finished product looks like yet, his plan has obviously collapsed Last time, about three months ago, the first batch of scrap products sent back by the Chinese were almost covered with various processing defects, such as cracks and remelted layers, which were only the most superficial ones. After further testing, it was found that The metallographic condition of the alloy also changed significantly. Basically, it can be said that there is no progress at all. Even after he took it back and analyzed it for a long time, he could only tell that it was processed with high-energy laser. As for other features, and even specific parameters... No need to think about it. But at first, McGill even thought it was a good thing. Because his idea is that the Chinese will need the third and fourth batches of raw materials for trial processing later. In this way, even if the other party deliberately performs mechanical damage before returning it, they can still gradually see the process of process improvement. I can finally get some useful information. As a result, once the second batch of raw materials passed, there was no news for three months In fact, it is not quite accurate to say this. After all, China will still submit a progress report with standard format and beautiful writing every one or two weeks. Unfortunately, these reports are very "British". In other words, its huge but contains almost no substantive content. Of course, everyone has worked their way up from a master''s degree to a Ph.D., and they also know the hidden rules of filling in periodic reports. So gradually, no one took a closer look. Just based on common sense, since the other party has never asked for the third batch of raw materials, it means that the progress may not be very optimistic. However, just when everyone is relaxing and ready to enjoy the Christmas holiday. But the Chinese just blew up a big one... Until half an hour after the meeting started, McGill was still holding a page from the pile of reports, sitting at the conference table like a wooden man and looking at it - On that page, printed are multi-angle pictures of production samples. The air film hole has smooth edges and the material surface is bright. There is even a slight reflection. The previous battle-damaged style was completely invisible. If the last time the Chinese delivered the RB211-524B4 sample, the result was directly delivered without a process, then this time at best they wrote an extra explanation to show respect for the person who asked the question... So much so that for a moment, McGill even wanted to slam the table and angrily scold the Chinese for deliberately scrapping the first batch of raw materials just to make fun of him. But then he recalled that he had vowed before that the other party could not see through this scheme, and finally he held it back... Compared to McGill, whose white face had turned purple from suppressing his emotions, the others had a calm mind. Lapworth''s biggest hope is that the technology he developed can be used on the Trent 900. At this time, he is only one step away from realizing his dream. It doesn''t matter who is specifically responsible for producing these turbine parts. Bodi felt that this reverse engineering method was unreliable and a bit cheap from the beginning. Although the original intention was not particularly noble, looking at McGill''s embarrassed look now, he could only feel happy. As for other people, including project director Panos Watson, they originally had the attitude of playing three shots at a time. Anyway, if you entrust the production of core components to others, the profits that should be lost and the secrets that should be leaked will be lost, so it is better to support McNair''s plan. What if it succeeds? Without expectations, the defense will naturally not be broken. but Do business with Huaxia, especially companies related to Chang Haonan. If the defense is not broken here, it will always be broken elsewhere. Just like now... "Director Watson..." Bodi suddenly raised his head, and his expression became serious: "There''s something important here." He said turning the pages over in his hand so that more people could see them. However, the conference table is still a bit wide, and it is really difficult for people on the opposite side to see the densely packed English letters. You can only see the word "WARNING" written in bold black font at the beginning. I had no choice but to ask my secretary to find the electronic version of the manuscript. In fact, at this point, no one thought much about it. I think it is nothing more than some routine annotations made by Party B. For example, pay attention to the operating essentials during clamping, installation and disassembly, and how to contact for repair or replacement of new parts in case of damage. However, when the contents of that material were finally projected onto the screen, the contents surprised everyone. "Warning about the possible lack of anti-overrotation design of the low-pressure turbine disk". Obviously, this is not the kind of legal or rights clause that is added as a template, but an out-and-out technical document. The content is also very simple. Indicates that during the production process of turbine parts, we found that the Trent 900 engine lacks measures to prevent turbine overload and over-rotation in extreme circumstances. Once the turbine shaft breaks due to an accident or other reasons, more serious consequences may occur, and It is reasonable to speculate that your company may also lack the same type of design in the structure of the medium-pressure turbine. However, considering that we have not obtained the complete design plan of this model, we have no way of knowing whether your company has achieved the same function with other technical means. Therefore, we are just here to make a kind reminder and hope that you will change it if it is, and if not, Jiamian and so on. Even from an English perspective, the content seems a bit pointy. As the person in charge of the entire model, Watson, not surprisingly, became famous because of this He has worked at Rolls-Royce for more than 30 years and has designed more three-rotors with his own hands than the Chinese have ever seen on drawings. One of your foundries may indeed have some special technical skills, but it is also honest. Now that you have completed your production orders, how can you guide yourself on how to design an aero engine? However, as a British gentleman, Watson would not directly start with an F word. He took several deep breaths in succession, managed to calm down, and then said to Bodie: "You write them a reply and say thank you for the reminder from our partners, but the Trent 900 is different from old aviation engines. Its turbine shaft has been precisely calculated during design and is responsible for the top craftsmanship and quality assurance teams. Production, there will be no breakage problem within the service life and no external damage factors. "Furthermore, the Airbus A380 that the Trent 900 is installed on is a four-engine aircraft. Even if there is a very small probability that the engine is damaged due to external reasons, as long as one of the four engines can maintain operation, the emergency mode can be activated to maintain The plane will continue flying for at least half an hour..." This reply can be considered a tit-for-tat response. Generally speaking, the Trent 900 is different from the low-end gadgets you have come across in the past. Dont think that you will understand our Rolls-Royce design philosophy just because you have learned Spey. The concentric axis of the Trent series itself has a redundant design, so it wont An outrageous failure like a broken axis occurred inexplicably. If it was caused by external factors, then even adding an anti-overrotation design would be useless. Moreover, we also have a powerful mode that can ensure flight safety in the most extreme circumstances. You guys? It''s okay if you don''t know anything, but don''t point fingers at us... However, Watson did not write the whole truth. In fact, from a pure risk control perspective, there is no drawback to adding an additional safety redundancy, no matter how flawless the design of the shaft itself is. What really made them get rid of this design was the relatively complex structure of the three-rotor itself. Its not that it cant be designed, but the cost control requirements given above are relatively high. In order to compete with GP7200, performance must be compared with every penny. Then we can only make some discounts on redundant design. After all, with the development of aviation technology, this has always been a major trend. Just like in the past, only four-engine aircraft were allowed to fly across the ocean, and later three-engine and twin-engine aircraft were gradually liberalized. Moreover, they did not cheat in their calculations and tests. Unless there are external factors, it is indeed impossible for the shaft to break. In short, before the samples were sent to the UK, the two sides had already completed a secret war of words. At this point in time, almost everyone thinks this is just part of the bickering between the leaders of both sides. But these two exchanges of documents, many years later, have become a kind of lingering influence that affects the entire world... (End of chapter) Chapter 1037 Im not interested in money Chapter 1037 Im not interested in money After packing the two sets of high-pressure and low-pressure turbine samples and sending them to the UK, Chang Haonan finally returned to the capital where he had been away for a long time. In fact, the Air Police 2000 project will be at the most critical juncture. Liang Shaoxiu has just completed the design of the overall plan, and the transformation work of the Tu-214K has also progressed to the critical stage - Half of the luggage compartment was converted into a fuel tank, a tail fin was installed, and a heightened tail fin was installed. A piece of skin on the back of the aircraft was cut to prepare a bracket for fixing the disc-shaped radome... Although Chang Haonan did not directly participate in this project, because the internal equipment installation process also involved data link hardware, he should have stayed in Haojing. But there is no way. The time has come to mid-December. The International Congress of Mathematicians is about to open. According to general rules, this meeting is usually held in the summer, that is, from July to August. But on this timeline, the 2002 meeting was repeatedly postponed due to various reasons. The most important one is- Many mathematicians, including Perelman and Chang Haonan, have "scheduling" issues. Ordinarily, as the largest and most prestigious conference in the international mathematics community, it should not be postponed due to the absence of individual individuals. But this time there are some exceptions. The main reason is that the work they did two years ago had a huge impact. It not only has a great influence in the public opinion circle, but also has a great influence in the mathematics community. It would be fine if Perelman could not be contacted directly like in his previous life, but before the meeting was about to be held on August 20, the staff of the International Mathematical Union (IMU) actually received a reply from him, saying that he could Attend the meeting but will need an additional period of time to prepare the report. Considering his importance, IMU finally passed the decision by one vote to postpone the meeting until the autumn. But for things like slippery slopes, it may be difficult to overcome the psychological barrier for the first time. But after the first time, it became much easier... In autumn, Chang Haonan was in Haojing and couldn''t leave. For the same reason, it was pushed back to winter. Finally, under the boiling frog in warm water, we reached the end of the year. IMU and the Chinese Mathematical Society are really in trouble. If you wait any longer, it will be 2003. You know, except for the two world wars, the tradition of holding the International Congress of Mathematicians every four years has never been interrupted. Pushing from summer to winter is still within the acceptable range, but New Year''s Eve... Absolutely not. We at IMU also have dignity. You two are indeed important, but it can''t be more important than the two world wars, right? In short, despite some stumblings, the 24th International Congress of Mathematicians opened in Beijing on December 16. This is not only the first conference of mathematicians in the new millennium and the new century, but also the first conference of mathematicians held in a developing country in history. In addition, the Clay Mathematics Institute has long announced that it will award the Millennium Prize of US$1 million to two scholars, Perelman and Chang Haonan, at this conference. The combination of these factors has caused this conference to attract attention from far beyond the mathematical community from the very beginning... In fact, for Chang Haonan, participating in such a meeting with thousands of people is no longer a big deal. But this is indeed my first time to participate in such a large-scale international conference. The Numerical Algorithm and Computational Science Conference he organized before was still far behind the International Congress of Mathematicians in terms of scale, level and influence. However, speaking of nervousness... That''s not the case. Chang Haonan was not originally from the mathematics world. Although he had heard the names of the big guys who came to attend the meeting, he basically only heard their names and had a general understanding of the extent of their respective achievements. It is impossible to have a fan filter. Instead, it was Zhu Yadan and others'' turn to worry about this situation. Although well-known mathematics experts generally have checkable backgrounds and are older, they do not seem to pose much of a threat. But in this case, it is also impossible to implement too strict security measures. In 2002, it happened that some forces with ulterior motives were trying to smear China. This is the International Congress of Mathematicians again, If there were three steps, one post, five steps and one sentry, China would not need to lose its international image. Only other methods can be considered. Therefore, on the opening day, Chang Haonan was forced to get up early and enter the venue before the peak flow of people arrived when most people arrived. Unsurprisingly, there were almost no people inside the International Convention Center at this time. Even the specially prepared first three rows of seats have not even been arranged yet. Chang Haonan had no choice but to find a relatively deserted and remote location to sit down for the time being. The organizational process of the entire conference is strictly confidential. Even though he is the confirmed winner of the Millennium Prize and the most popular candidate for the Fields Medal, he does not know the specific arrangements. Therefore, Chang Haonan was ready to seize the opportunity to catch up on some sleep so as not to be unable to hold on until the meeting was halfway through. But just after closing his eyes, he heard a voice not far away from him. "Professor Chang." He also has a bit of a Shanghai accent. Someone called him, so he had no choice but to open his eyes and follow the sound. He was found to be an old man with kind-faced eyes and silver hair. Chang Haonan briefly searched in his memory and quickly found the name. The visitor is none other than the chairman of this conference, Academician Wu Wenjun. He was also one of the two winners of the first National Top Science and Technology Award in 2000. The other person with him was Academician Yuan Lao, who was studying hybrid rice. It is enough to show his great contribution to the Chinese mathematics community and even the entire scientific community. Somewhat coincidentally, Academician Wu''s main academic achievements are also concentrated in the field of topology. Although as a scholar active from the 1950s to the 1970s, his specific research direction is very different from Chang Haonan''s topology, but it does not delay the recognition of the importance of the latter''s results... Therefore, after seeing Chang Haonan arriving at the venue early, he took the time to come and say hello. "Hello, Academician Wu." Chang Haonan stood up to greet him and shook hands: "I''m really sorry. I saw that I came early, so I was thinking of taking a little more rest..." Whether it''s public or private, he should actually take the initiative to go on stage to visit the other party, but he really didn''t notice it just now. Fortunately, Academician Wu didn''t care about these minutiae and asked with a smile: "Is it because you were too excited last night and didn''t get a good rest?" Chang Haonan shook his head: "I''m not too excited. The main reason is that I just came back from a business trip and I''m not used to the bed at home." When he first heard his explanation, Academician Wu was even stunned for a moment, and then he came to his senses: "Yes...blame me, blame me, forget that you are not only engaged in mathematical theoretical research...but also hold other important positions..." Wu Wenjun did not know Chang Haonan thoroughly, but given his position, he still knew some of the latter''s actual situation. Anyway, it is the kind of treasure that the highest-level leader has personally taken care of and cannot just let go abroad. As for what he had done other than mathematics...he didn''t ask casually. "I can''t talk about important positions. I''m just giving some heat to the country..." Chang Haonan had already seen people who looked like other scholars entering the venue one after another. He knew in his heart that he probably couldn''t rest, so he simply followed Academician Wu and walked all the way to the center of the venue. "The conference has specially arranged seats for you and Mr. Perelman, right here... Of course, you can sit on the other side if you want." Academician Wu pointed to a seat in the third row in the middle and said. Generally speaking, because those who attend the International Congress of Mathematicians are all decent people, it is unlikely that they will fight for seats. Therefore, except for those who work at IMO or are responsible for conference organization like Academician Wu, most people do not The location will be arranged directly, and it will only be roughly divided into a few areas. Situations like this are really rare. Looking at this arrangement, which was obviously made for the convenience of entry and exit, Chang Haonan was a little bit dumbfounded: "Does this mean something imperially appointed..." "Rubbish talk... what''s the point?" Academician Wu glanced at him helplessly: "It''s not that you two refused to go to France, and the Clay Mathematics Institute couldn''t even send out any money, so it couldn''t come to this conference to give you awards..." At this time, Chang Haonan remembered that the awards to be awarded at this conference were far more than just those traditional awards... "I almost forgot about this..." He scratched his head in embarrassment. "Forgot?" Even Academician Wu was a little overwhelmed by this explanation: "That''s half a million dollars, just forget it?" "Ouch..." Chang Haonan almost without thinking, directly gave an answer that had become a classic in the previous life: "I''m not interested in money..." (End of chapter) Chapter 1038 international congress of mathematicians Chapter 1038 International Congress of Mathematicians It was only then that Chang Haonan realized that he had accidentally made a mistake. Fortunately, it is only 2002, and a certain four-character company has just emerged from the quagmire of the Internet bubble and has barely gained a foothold, and this sentence has not yet become a famous Internet meme along with the emoticon of a certain CCTV host. Speaking of it in his current capacity, it wouldn''t be too offensive. However, perhaps because the tone of his answer was too natural and there was no trace of deliberateness at all, the academician Wu opposite him took it seriously and for a moment he couldn''t think of what to say next - He originally thought that Chang Haonan had obtained such status and honor at such a young age, and was worried that the latter might not be able to grasp it. And I came here just now with the idea of ??giving a little reminder before awarding the award. As a result, I found that it was completely different from what I expected... So much so that his worries immediately jumped 180 to another level: "Uh... Professor Chang, times have changed... There is no need to overemphasize being indifferent to fame and fortune... Personal value and social value are not in conflict with each other..." Chang Haonan was just casually talking about the world famous paintings before his rebirth, but now he is quite frightened to be praised by the old academician Wu as "indifferent to fame and wealth". However, before he could reply, several other people came over from a short distance away and cut off the topic in a timely manner. "Wen Jun." Although Chang Haonan''s line of sight was blocked, when he heard that the other party could address Academician Wu in this way, it was obvious that he must be a high-ranking figure in the world of mathematics. It has to be at the level of an old-timer. At the same time, Wu Wenjun also turned sideways and looked at the people walking behind him. He also gave up the position in front of Chang Haonan. And just as the latter had just speculated, the person who came was thin, slightly rickety, and even much older than Wu Wenjun. He looked to be at least ninety years old. "When you take the stage later..." The leader seemed to want to give some instructions, but only halfway through his words, he noticed Chang Haonan standing next to him. Then the sound stopped suddenly. But the slightly cloudy eyes revealed more curiosity, indicating that he did not recognize the person in front of him. Of course, this is normal. The reason why Chang Haonan collaborated with Perelman to publish the paper was mainly because he accidentally discovered a new key to solving the Poincar conjecture in the process of studying manifold learning algorithms. It wasn''t intentional. Therefore, after that wave of earth-shattering events, he quickly returned to the direction of applied research. Except for a few limited-scale lectures, I have not appeared in the mathematics community for a long time and with high intensity. For the same reason, Chang Haonan was somewhat confused at this time. He did recognize the photos of many famous mathematicians before he came here. But as we all know, the appearance of elderly people is not very recognizable in many cases. And the degree of aging may reach a new level every year. If you are not very familiar with it, it is normal to not recognize it... Fortunately, Wu Wenjun quickly stepped forward, bent down and held the other person''s hand, and then gestured in the direction of Chang Haonan: "Teacher, this is Professor Chang Haonan." This sentence is obviously introducing Chang Haonan. But in fact, it is also hinting at the old man''s identity. Therefore, Chang Haonan quickly greeted the other party slightly: "Senior Chen, it''s an honor to see you here." Just considering that the other party''s arms were being supported, I didn''t go forward to shake hands. Chen Shengshen, mentor of Wu Wenjun and Qiu Chengtong, has a pioneering historical position in the field of differential geometry. He is also one of the absolute giants in the Chinese mathematics community. In fact, the reason why China is determined to actively strive for the right to host the International Congress of Mathematicians is largely due to the suggestions of teachers and students Chen and Qiu. The event was finally successfully held in 2002 without the strong support of this senior. However, Chen Shengshen was already 91 years old at this time and his physical condition was not good. Therefore, Chang Haonan thought that the other party would not come in person. Chen Shengshen did not answer immediately, but stared at Chang Haonan''s face for a long time. Then he slowly said: "This conference was able to be held in Beijing, thanks to Professor Chang''s achievements at that time..." Chang Haonan quickly shook his head: "This is really ridiculous..." "You and Mr. Qiu have been working on this matter for many years, and the entire Chinese mathematics community is watching. Just because I was lucky enough to produce some results before the final results were announced, it cannot all be attributed to me." While talking, Chen Shengshen also sat down in a seat next to him with the help of everyone: "Xiaoqiu and I have indeed made some contributions...but the value of this conference to Chinese mathematics research is mostly demonstrated by you." "To put it more directly, after Mr. Chen and Su, it was you who brought the Chinese mathematics community back closer for the first time... and even reached the top position." This sentence made everyone around him stunned for a moment. Then he focused his attention on Chang Haonan. The Chen Su mentioned by Chen Shengshen naturally does not include himself, but refers to Chen Jiangong and Su Buqing, two mathematicians who were active in the 1930s and 1940s. After that, although there were many Chinese names shining in the world of mathematics, including himself, they were all Chinese after all, and their achievements did not belong to China. "Actually, after you just proved the Poincar conjecture, Cheng Tong mentioned to me that he wanted to invite you to teach at Princeton University." After a slight pause, Chen Shengshen continued: "But I had already returned to China and knew a little bit about your situation, so I stopped him..." "I really have no plans to teach abroad..." Chang Haonan made no secret of this. In fact, although he has many projects on hand in recent years, he is not really busy. The reason why he disappeared at the speed of light after proving the Poincar conjecture was largely because he wanted to reduce his presence in the mathematical world Theoretical research is different from engineering research. Sometimes you need to be alone. The discussion within the small circle did not last long. As the time drew closer to the opening, Wu Wenjun, as the chairman of the conference, needed to prepare to give a speech on stage and left the audience first. Soon after, a group of foreign mathematics experts who came from their residences also entered the venue one after another. Although not many people can immediately recognize Chang Haonan, Chen Shengshen and Qiu Chengtong are quite well-known after all. And as long as you get close, it''s not difficult to deduce the identity of the former. So in the next short period of time, Chang Haonan got to know many people casually... To be precise, many great gods Gerd Faltings, Pierre Deligne, Charles Feiffman They are all pioneering senior figures in their respective fields. Maxim Kontsevich, Andrew Wiles, Richard Hamilton, Edward Witten These were first discovered on arXiv, or were later called over to review the paper. And Laurent Laforge, Vladimir Vvotsky, Wendelin Werner and, of course, Perelman Together with Chang Haonan, he is a popular candidate for this years Philippine Awards Although the specific candidates for the Philippine Prize and the nominees are strictly confidential before the awards are presented, it is not difficult for the already small top mathematics circle to guess a general range. Its just a matter of who the final winner is and how many. Basically, everyone agrees that Chang Haonan and Perelman will definitely win the award. But not in this session, there is actually some controversy. After all, when the Philippine Award is awarded, in addition to achievements, the age of the recipient will also be considered from a human level. In principle, the winner cannot be older than 40 years old. Therefore, the selection committee sometimes prefers to award mathematicians aged 36-39. Therefore, many people still have expectations for themselves, thinking that this year will follow the usual practice and give priority to those nominees who "if they miss it, it will be too late." Of course, Perelman also happens to be 36 years old this year. But since it is said to be in principle, it means that the principle can be broken. For example, Andrew Wiles in 1998. Not only did he win the award at the age of 45, he even squeezed out an extra spot that year. The Poincar Conjecture was clearly worthy of the committee breaking its principles again. Then it would be normal for Perelman to win the next award in 2006. As for Chang Haonan... In terms of years of age, he is only 26 years old. Fortunately, regardless of how they are in private, top mathematicians are at least respectable in appearance. Even if it is a Philippine Award, there will not be a public fight for it. So the atmosphere is quite harmonious. And among this revolving crowd of people, there is one person who is more special. Steven Strogatz. Compared with the previous big guys, he is indeed a little bit behind in popularity. In fact, Chang Haonan didn''t even have any impression of this name at all. But the other party''s explanation quickly eliminated his confusion: "I am a professor from Cornell University. I am very grateful to you and Professor Perelman for their contributions to the arXiv open source community..." "To this end, our school is going to award a special achievement award to you two. I wonder if you are interested in receiving it?" (End of chapter) Chapter 1039 Even more than the Fields Medal? Chapter 1039 Isnt it even more than the Fields Medal? ?At nine o''clock in the morning, as the music sounded, the host came on stage, and the nine-day 24th International Congress of Mathematicians kicked off. There is actually no difference in the procedures between international conferences and domestic conferences. The first step after the opening was that Wu Wenjun, chairman of the organizing committee of the conference, and Jacob Paris, chairman of the International Mathematical Union, took the stage to deliver speeches respectively. Moreover, this section took a lot longer than before You know, the reason why as many as 4,000 people attended the meeting this time was not just because the host China sent a large delegation. Third-world countries with certain mathematical research capabilities, such as India, Brazil, and Turkey, have also sent more scholars than before. In particular, Jacob Paris himself is from Brazil, and he wrote a lot about the special nature of this conference. After all, although Rio de Janeiro failed to win this competition and did not even make it to the final round of voting, as long as there is a start, sooner or later the International Congress of Mathematicians will be held south of the equator. Since his rebirth, Chang Haonan has interacted with foreigners a lot, so his English proficiency has improved by leaps and bounds compared to before. But despite this, it is still a bit sleepy to listen to large sections of content that has nothing to do with technology. He forcibly suppressed the desire to yawn and looked to the left and right. I found that others seemed to be doing the same thing. Perelman, who was sitting on the other side, had already taken out a notebook and lowered his head not knowing what he was writing. "often." Charles Feifman, who was sitting next to Chang Haonan, suddenly came over. "Um?" Chang Haonan was a little surprised. After all, the two of them are not actually familiar with each other. But he still turned his head slightly to look at the other party. "Did you know that at this conference, the odds of winning the Fields Medal are both 1:1.01 between you and Professor Perelman." 1:1.01 is already the lowest value among normal odds. Basically, the dealer thinks this is a sure thing. But Chang Haonan really had no interest in the gambling industry. After hesitating for a moment, he touched his chin: "I have no idea." Three words silenced Feifman, who originally wanted to bring up other topics. After a few seconds, he finally recovered: "Don''t you want to know who is on the nomination list? I have a friend..." Only halfway through speaking, Chang Haonan shook his head: "In no mood." This time, only one word was used. Seeing this scene, Pierre Deligne, who was sitting a little further away, immediately covered his mouth and his shoulders kept shaking. Obviously, Fefferman used similar topics to seduce these potential Philippine Award winners and then play pranks not once or twice. But this time when he met Chang Haonan, who had no time to eat and drink, he was defeated before he even had time to sing. Fortunately, at this time, Professor Paris on the stage entered the closing stage in time, which relieved the embarrassment here. And the atmosphere of the entire venue was pushed to its climax - Because after the opening speech, there is an exciting awards ceremony. As usual, the first award should be the Newanglinna Award. However, this time, due to the interference of the Clay Mathematics Institute, the one at the top of the list became the Millennium Mathematics Award. In fact, logically speaking, awards that are not selected by the International Mathematical Union (IMU) should not be awarded at such an important time as the opening ceremony. But there is no way, the influence of the Millennium Mathematics Prize is too great. If it is placed later, even in the closing ceremony, it will give people the feeling that it is the finale. It is better to place it generously at the front to show that its status is not as good as the following ones. Anyway, this is not a permanent award, this time it is a special event. Its impossible to award it after four years, right? In short, Chang Haonan and Perelman became the first batch to take the stage to receive the award. $500,000 each. For those who are engaged in mathematics, it is definitely a huge sum of money. However, because the winner of this award was determined more than a year ago, there was no surprise. The most excited person in the audience was Langton Clay as the presenter and sponsor. After all, although it feels a bit too much to hand out money and beg others to accept it, it is precisely because of Chang Haonan''s willfulness that the award he established can be tied with the Philippine Award. It is precisely for this reason that at the end of his speech, Clay made a special joke and expressed his hope that he could stand on the ICM podium for the second time in his lifetime. There was a burst of good-natured laughter in the entire venue There are seven Millennium Mathematical Puzzles in total. Now there are only six left. Its not Chinese cabbage. Its normal for no one to receive the second one in thirty or forty years... After the Millennium Mathematics Prize, it is finally the turn of IMUs official awards. Following closely behind is the Newanglinna Award. The conditions for winning the award are the same as those for the Philippine Award, and they cannot be older than 40 years old. However, the scope of the award is limited to mathematical fields related to computer science. In the end, Madhu Sultan, an Indian mathematician from MIT, won this year''s Naiwan Award due to his contributions in probabilistic verifiable proofs, inapproximability of optimal problems, and optimal error-correcting codes. Linner Award. After the Sultan received the award, the applause did not last long. Its not that the Newanglina Prize is unimportant. Its not because everyone has any opinions about the winner himself. But... The main event is coming. Because in 2002, there were no other major awards such as the Chen Shengshen Award and the Lilavati Award, so the Fields Medal was directly followed by the Newanglina Award. The list was read out personally by Jacob Paris and presented by important figures from the host country. Although, there are many awards that claim to be the "Nobel Prize in mathematics." But if you must choose the one with the highest recognition and popularity. That must be the Philippine Prize. Scholars who can win this honor have all played a huge role in promoting the development of mathematics and can even become a mainstay in the mathematics world. It also means that the entire mathematical community recognizes its contribution. Therefore, the moment Jacob Paris took the stage, the main conference hall, which could accommodate thousands of people, was as quiet as death. Many people, especially the popular candidates for the Philippine Awards, even couldn''t help but hold their breath. And perhaps in response to the enthusiasm in the audience, Paris raised his head and showed a kind smile. But for some reason, Chang Haonan saw something subtle in that smile... naughty? Like when a prank succeeds. It is normal for people who engage in mathematics to be old naughty people. But in this case, you can''t go too far. Therefore, Chang Haonan couldn''t think of any other possibilities for a while, so he had to wait and see. Everyone, after discussions and deliberations with the International Mathematical Union and the board members of the German Mathematicians Union, we finally decided to set up and award the Gauss Prize starting from this conference to commemorate the outstanding role in promoting the field of mathematics. Carl Friedrich Gauss!" For a time, the whole house was in an uproar. In fact, the decision to establish the Gauss Prize was passed at the 23rd International Congress of Mathematicians held in Berlin four years ago. However, the establishment belongs to the establishment, and the specific year from which the selection and awarding will begin was not finalized at that time. Before this conference, not much news about this matter came out. So everyone basically believed that the selection of this award would not start until 2006. As a result, no one expected that Paris would directly launch a surprise attack. It wasn''t until a few minutes later that the heated discussion finally subsided, and everyone''s attention returned to the podium at the front. Everyone wants to know who will be lucky enough to be the first winner of the Gauss Prize. Paris also raised the envelope in his hand to his chest at this time. "Based on the nominations and voting by the Awards Committee, the winner of the 2002 Gauss Award is..." Having said this, he paused deliberately, and then, under the gaze of thousands of eyes, he pulled out a piece of paper from the envelope: "Chang Haonan from Beijing University of Aeronautics and Astronautics, and Gregory Perelman from Styklov Institute of Mathematics!" (End of chapter) Chapter 1040 Is it possible to win three awards at on Chapter 1040: Can I still win three awards at once? This result exceeded almost everyones expectations, including Chang Haonan. According to 1998, the Gauss Prize will be awarded to scholars who have made great contributions in the field of applied mathematics. Although Chang Haonan has made many achievements in the field of applied mathematics, he has almost never published his results in the form of papers, and the Poincar conjecture does not seem to be easily related to applied mathematics. However, Paris seemed to have no idea of ??further explanation. He just put down the envelope and paper in his hand and motioned for the winner to come to the stage to receive the award. There''s nothing unusual about this. The distinction between mathematics and applied mathematics itself is not so clear-cut. Especially since technology has developed to this day, it is really not easy to find the so-called pure mathematics that is completely "simple and useless". Including those unpopular number theory directions that were considered to have only interesting value a century ago, after the advent of the information age, they have also found their own fields of application. Therefore, I have to say that Chang Haonan and Perelman have contributed to the application field... No one can refute that. Of course, there will definitely be some scholars in the field of real applied mathematics who have some opinions on this, but at most they are just grumbling in their hearts. Even if you want to question it, you can only wait until the next session to see the situation - If the award is still given to a scholar who is partial to theory, and the other party does not have hard-core results such as Poincar''s theorem, then it is not too late to settle the matter together. And in fact, after hearing that Chang Haonan and Perelman won the Gauss Award, there were still a group of people who were very happy. That is, several other scholars who are also candidates for the Philippine Prize. This is easy to understand. A total of four awards were presented today. Among them, the Newanglinna Award has nothing to do with most peoples research directions. There are three more. You two have already claimed two of them together. So it''s reasonable to say that it''s someone else''s turn to be the last one, right? The scope of competition for the Philippine Awards is inherently very narrow, and the number of possible winners in each session is no more than two. The denominator is missing two at a time, which is great news for others. After all, we are all competitors, so it would be very respectable if we don''t try to step on each other''s knives. It can only be called human nature to rejoice in the misfortune of two people who have a high probability of being eliminated. There is nothing to criticize. In short, under the thunderous applause and the attention of the audience, Chang Haonan and Perelman, who were still a little dazed, had to leave their seats, each greeted the surroundings, and then walked to the stage. The Gauss Medal is also a round golden medal, but its shape is much simpler. It only has Gauss''s portrait, full name, awarding organization, and three lines of letters "For Applied Mathematics" printed on it. Not to mention a strange person like Perelman who refused to accept the Philippine Award in another timeline, even Chang Haonan did not have any psychological fluctuations about this. In fact, even he began to feel that he might miss this Fields Medal. Therefore, during his acceptance speech, he directly changed the content he prepared for the Philippine Award and said it: "I am very grateful to the International Mathematical Union and the German Mathematicians Union for their recognition of my research results. Poincar''s conjecture, that is, "a simply connected closed three-dimensional manifold is a three-dimensional sphere." This concept itself is pure and abstract, and does not seem to be It has no practical value, and even because its description is too simple and intuitive, it often gives people who are not majoring in mathematics an illusion. When he said this, everyone in the audience, including Paris and Perelman, who had already spoken next to him, all showed knowing smiles The abstract nature of Poincar''s conjecture and the simplicity of its description form an extreme contrast. So much so that in the absence of sufficient professional training, it is impossible to understand the conjecture itself simply by relying on the textual meaning of the conjecture. This also makes civil science rarely able to touch this research direction. This is in stark contrast to the field of number theory, which receives 10,000 spam submissions every day. After a slight pause, Chang Haonan continued: "However, Thurston''s geometry program presented the landscape of three-dimensional manifolds to the world, and Hamilton''s Ricci flow provided a powerful tool for curvature to construct the Riemannian metric. In the process of proving the Poincar conjecture, following the computer With the development of technology, the development cycle from pure theory to applied algorithms is getting shorter and shorter. Also thanks to the development of computer technology, the boundaries between pure mathematics and applied mathematics are gradually beginning to be broken..." "In practice, the application of Ricci flow on two-dimensional surfaces has gradually begun, and our research has proven that the application of Ricci flow on three-dimensional manifolds is more profound and powerful. Although the topology of three-dimensional manifolds and geometric knowledge are far from universal, but as a faithful portrayal of natural truths, we believe that this mathematical tool will become a powerful weapon in rewriting the course of history in the future..." Although he looked calm on the surface, after actually returning to his seat with the medal, Chang Haonan discovered that his shirt was almost soaked with sweat. Obviously, in this situation, it would be a lie to say that I was not nervous at all. At this time, Charles Feifman, who just wanted to play a prank, came over again. "Chang, don''t worry, you are too young. I believe you will win the award in 4 years..." Chang Haonan lowered his head and looked at the Gauss medal in his hand for a while, then closed the box and raised his head to look directly into Fefferman''s eyes. After watching for a while, he was sure that the other party was indeed here to comfort him. It''s just that the method of comfort is a bit unreasonable... "Well, thank you for your... blessing." Chang Haonan sighed. Deligne also interjected at this time: "Actually, Fefferman is very optimistic about you, he just... isn''t very good at organizing words." He was very familiar with Feifman''s mouth. If I didn''t explain it later, there might be some misunderstanding. It''s not like it hasn''t happened in the past. "Yes, I also bet $1,000 on you to win the prize...I''m afraid it''s all in vain now..." Feifman continued, but because of his half-joking tone, Chang Haonan couldn''t guess whether it was true or false. But the other party has no ill intentions, that''s for sure. While the three of them were chatting back and forth, Paris once again came on stage holding an envelope of the same style. This time, it has to be the Fields Medal anyway. However, perhaps it is because we have experienced a round of crying wolf just now. Or maybe after removing the two competitors, there are only four candidates with clear prospects left. Although the venue became quiet again, the atmosphere was no longer as depressing and anxious as last time. Everyone is waiting for the final announcement of the results with a more relaxed attitude. "Ahem" Paris deliberately coughed twice and gave it a try. But he also knew that today''s participants had been dragged away for too long. So he quickly returned to his original solemn and calm voice: "From the moment of his birth to the groundbreaking, what he pursues is to realize the magnificence of geometric structure and the profundity of natural truth..." "In his studies of differential geometry and topology, he provided completely new tools for understanding the shape of the world and the universe..." At first, people were quite interested. But as time goes by, everyone feels that something is not right. Just this description... why does it feel a bit familiar? I dont know when, but the first gaze looked in the direction of Chang Haonan and Perelman again. Immediately afterwards, everyone realized one thing one after another. "Why do you feel it''s still the two of them?" Until Paris pointed out the Poincar conjecture at the end, the answer was already very clear. Not to mention other people, even Chang Haonan himself was numb No, buddy? Did I just say all the acceptance speeches I prepared? Could you please let me make up another one? (End of chapter) Chapter 1040 Mathematics is just a hobby (this Chapter 1040 Mathematics, just interest (this chapter is free) Compared with the ups and downs at the meeting, outside the broadcast footage, it was a completely different scene Yes, because Chang Haonan is one of the most popular candidates for this year''s Philippine Awards, Station C devoted an entire morning to covering the opening ceremony for the first time. Taking into account the acceptance level of most viewers, a translator was also specially assigned. Many colleges and universities, especially college mathematics departments, even adjust classes for half a day for this purpose. As for Beijing Hang University Not to mention that. Although the scale and level of the Department of Mathematics of Jinghang University have not yet caught up with the international forefront, Chang Haonan is, after all, a student of the school who has gone abroad and a professor of the school, so even other majors have basically organized centralized viewing. And the moment Chang Haonan''s name was read out for the third time, the entire campus was almost drowned in warm cheers and applause. That is to say, there is no online live broadcast of this event, otherwise the entire screen may be filled with barrages. "No, can you really win three prizes at an international conference of mathematicians?" Even Tang Lintian, who was sitting in a certain classroom "having fun with the people", felt a little superior and asked a more knowledgeable mathematics professor next to him. "Well...technically speaking, it''s actually two." The latter pushed up his glasses and even had to raise his voice to answer: "The Millennium Mathematics Award is not an award issued by IMU. It only came to the ICM venue because of Professor Chang''s request." Having said that, winning two of the three awards is already an exaggeration. At this moment, Tang Lintian wanted to drink water to calm down his shock, but he found that the hand holding the cup couldn''t help but tremble, and he really couldn''t bring the mouth of the cup to his mouth accurately. Had to give up. "If I remember correctly, this should be the first Chinese to win the Philippine Award?" "For Chinese nationality, that is indeed the case..." Tang Lintian raised his head again and looked at the curtain at the front of the classroom. At exactly this moment, the broadcast captured the Fields Medal lying next to it. "Principal Tang, is Professor Chang not yet 30 years old this year?" Just as Tang Lintian was sighing, a student''s voice came from not far behind him. He turned around and found that almost everyone in the lecture theater behind him had stood up excitedly. "It''s definitely not under 30 years old..." Tang Lintian is very familiar with Chang Haonan''s experience: "I remember he should be in his twenties this year..." This unintentional number further stimulated the students reaction: "Twenty-six-seven...that should be the youngest Philippine Award winner in history?" Someone immediately thought of this. At the beginning of the 21st century, China is gradually beginning to accelerate its development and needs the most efforts to build national confidence. At this juncture, in mathematics, a subject that is the crown jewel of science, there is a Chinese national who is the youngest Fields Medal winner... Although it may not be directly related to everyone, most people will feel proud... "The previous youngest winner was Pierre Serre of France, who won the award at the age of 27. If Professor Chang is 26, he must be the youngest. If he is 27, it depends on his birthday..." Apparently, someone still did some homework in advance. "Looking at birthdays...the postponement of this award to the end of the year is very detrimental to Professor Chang..." Listening to the discussion from behind, Tang Lintian felt for the first time that the chaotic voices of the students were so pleasant. He quickly took out his cell phone and was about to ask his secretary to check the specific birthday on Chang Haonan''s file When Chang Haonan was born in the late 1970s, because the household registration system was not perfect, it was normal for a person''s actual birthday to differ by several months or even years from the recorded birthday, so he was not sure. Is that answer correct? However, before he could finish editing the text message, while Paris was reading out the deeds of other winners, the host of Station C had already mentioned this matter. One thing that needs special mention is that Professor Chang Haonan is only 26 years old this year, one year younger than the French mathematician Jean-Pierre Serre who won the Fields Medal in 1954, so he is the youngest person so far. Fields Medal winner "oh-" The students once cheered as their suspicions were confirmed. "To be honest, IMU is really bold this time, awarding the award to such a young Professor Chang. I heard that the Philippine Award cannot be awarded after the age of 40, so sometimes it is inclined to award the award to the older ones first..." After calming down a little, someone commented again. "Maybe it''s because of Perelman''s age. He looks to be in his thirties..." "It''s not necessarily that...Slavs age faster, maybe they just lose more hair..." "I think IMU also has the idea of ????taking a niche first... Otherwise, in four years, God knows who will be more famous, Professor Chang or Fields?" "Also...it would be a bit embarrassing if they were like the Clay Mathematics Institute this time, chasing others to give out prizes..." At the same time, inside the venue. Paris finally announced all the winners. In addition to Chang Haonan and Perelman, the other two laureates are Laurent Laforge, who established a new connection between number theory and algebraic geometry, and Vladimir Putin, who developed a new cohomology theory of algebraic varieties. Mir Vvotsky. Compared with the first two, their research results are less known to others, but they have also made extremely revolutionary contributions to their respective fields. Of course, France and Russia are both long-standing big players in the Philippines Awards, so their awards will not attract the attention of tens of millions or even hundreds of millions of people like Chang Haonan. Chang Haonan stood on the stage with three others and received the glittering medal from the special guest of honor, the big leader. When it was his turn, the two shook hands for an unusually long time. "Little comrade, we meet again." Although his English was good, the other party still spoke in Chinese with a Jianghuai accent: "Congratulations on becoming the youngest Fields Medal winner." "Thank you and thank the organization for supporting me." Chang Haonan, this is definitely not a cliche. Since his rebirth, he has been making exceptions and doing special things all the way to where he is today. Almost every step is based on the feasible limits of policy. Without the special care given by above, even if he could still achieve these achievements in the end, at least it would not be as fast as it is now. "Thank you also for your great contribution to China..." After the awards, the four winners sat down in a special area on the stage, and Paris also returned to the stage, preparing to give his acceptance speech in the form of a simple interview. The reason for using this method is also considering that both Chang Haonan and Perelman took the stage for the third time. There''s really nothing more to say. "The research results of the two of them are a blockbuster for the mathematics community." Paris spoke first: "I don''t know the next step. Are you going to continue to conduct research together, or do you each have different plans and goals?" This is actually a fair question. However, it is of interest to many people in the audience. Mainly, you can avoid pitfalls - For most scholars who are not so willing to challenge themselves, if these two people are interested in a certain issue together, the best way is to stay away. Otherwise, you may be halfway through the research and find that the problem is gone... However, Perelmans answer was quite explosive: "I have fulfilled my original dream of devoting myself to mathematics research, and then...maybe I will retire from mathematics." Except for Chang Haonan, who already knew the plot, everyone was confused. Paris'' hand shook even more, and the microphone almost dropped to the ground. What to do? Although it is said that the golden age of mathematicians is before the age of 40, does it mean that they are useless after 40? How can anyone win a Philippine award on the front foot and then retire from the world? But looking at the other person''s expression, it doesn''t look like a joke at all... For a while, there was even a moment of silence on the stage. In the audience, many people felt a little lucky. After all, the risk is reduced by half. After a while, Paris turned to Chang Haonan: "Professor Chang, you don''t have the same idea, do you?" There was almost pleading in his eyes. For those who only care about the mathematics world, Chang Haonan and Perelman have been almost invisible in recent years. Since the latter wants to withdraw from the world of mathematics, the former is obviously also possible. But if two people in a row play like this, Paris may not be able to get off the stage at all today. However, for everyone in the audience, it would be best if both of you monsters quit the world of mathematics. Please, please give future generations a chance! "Don''t worry, it won''t." Chang Haonan''s answer made Paris finally breathe a sigh of relief: Then, the conversation changed again: "But I am not a math major. The reason why I study mathematics is purely out of coincidence and a little interest...so I am not sure about the direction of subsequent research." "Let fate decide..." (End of chapter) Chapter 1041 My situation is not universal Chapter 1041 My situation is not universal... Chang Haonan''s remarks were simply a ticking time bomb for the audience who wanted to avoid his sharpness. Considering his age, it is almost equivalent to randomly selecting a lucky peer from one direction for burial within ten years. Of course, this is mainly for ordinary scholars who make up the vast majority. As for the real big guys, their mentality is completely different. They may be more inclined to see it as a challenge, or motivation. "Do you think he is serious when he says this, or is it just a routine?" Feifman held the side of his face with one hand and tapped the armrest of the seat with the other hand. He suddenly asked Deligne beside him. The latter raised his head and thought very seriously for some time. But in the end, I still couldnt give a definite answer: "I can''t say." "He is only 26 years old this year, which is too young even for the Fields Medal. He has enough time to develop a new research direction..." Although the Fields Medal has an age limit of under 40 and is an award for young mathematicians, most of the winners are still around 35 years old. At this age, although it is not yet the end of his career, his creativity and pioneering have basically begun to decline. Most people will gradually turn to mathematics education, or enter more empirical research directions. But a mathematician in his twenties... There are still endless possibilities. For example, Perelman only became interested in the Poincar conjecture when he was around 30 years old... Fefferman nodded and did not reply. Instead, he turned his attention to the people on the stage again. However, just when he thought the conversation was over, Deligne suddenly said: "I suddenly felt that Chang''s research method...or the entry point of research is somewhat close to Lions." The name was obviously beyond Fefferman''s expectation: "Lions?" He subconsciously turned around and looked at a figure on the edge of the row behind him. Sitting there was French mathematician Pierre Lyons, winner of the 1994 Fields Medal. "Not this Lions." Deligne quickly corrected: "It''s his father, Jacob Lions." "That was a mathematician from two eras ago..." "Yes, but old Lions often starts from a specific application. If he finds that the theory is not complete, he starts to study the theory himself, or even builds a set of mathematical tools..." Having said this, Deligne paused for a moment, then suddenly smiled: "The research directions of these two people are very close. They do partial differential equations, inserted spaces, finite element analysis... almost everything." "So, which field Chang will focus on next will most likely depend on the specific problems he encounters..." While the two were talking, the interview on stage also entered the second half. Fortunately, compared to Perelman and Chang Haonan, who acted out of common sense, the other two winners behaved much more normally. Perhaps because this is my first time on stage today, I havent said the speech I prepared before. In short, Paris, who was at a disadvantage to his teacher, won over Bo Zun... With the end of the award ceremony, the entire opening ceremony also came to an end. This International Congress of Mathematicians lasts for 9 days, leaving enough time for academic reports. Theres no need to squeeze in the half-hour between the opening ceremony and the luncheon. Participants can take advantage of this time to rest, have free activities or communicate. Although there are some small programs arranged by the organizer, they are mainly used as a background to avoid a dull moment and activate the atmosphere. After all, few people come to the conference just to enjoy the artistic performances... Chang Haonan walked off the stage and was surrounded by reporters before he even had time to return to his seat. In fact, after so many years, he has sufficient experience and preparation to deal with the media. In most cases, he only needs to come up with a fixed format of rhetoric. But in the current situation, when facing an interview from station C, it is not easy to deal with the errand like this. Especially since he had racked his brains just now and said everything he could. If the other party asked him again as usual how he felt at this time, he would really be unable to hold it back. Fortunately, the reporter in front of me is pretty good. At least he should have understood the content of the exchange just now on the stage. So these repeated contents are not mentioned again. Instead, after the congratulations at the beginning, it went directly to the following links: "Professor Chang, we noticed that you are not a mathematics major and have not participated in any mathematics competitions in the past, but you have still achieved world-renowned achievements... Do you think this means that our current mathematics education and selection system still has some limitations? What needs improvement? Hearing this question, Chang Haonan, who had been quite comfortable on stage just now, immediately started to sweat a little. The backwardness of China''s theoretical mathematics community is mainly due to poor foundation and insufficient investment. Compared with other subjects, mathematics has a longer cycle of achievement transformation and a higher level. The current development situation in China determines that the vast majority of mathematics majors will eventually enter more applied fields. Such as finance, engineering, computer... This situation will gradually be resolved with the development of the national economy and comprehensive national strength. But not now. As for mathematics education... Even if there is a real problem, it is still too outrageous to use him as an example. Therefore, Chang Haonan quickly organized the language in his brain: "Education and selection methods do need to keep pace with the times, but I think that for the vast majority of people, going along the existing education and competition system is still the option with the least risk and the highest benefit." "As for me..." He paused for a moment, then changed into a somewhat helpless tone: "Even among the international mathematics community, my situation is not universal, so it does not have much reference value..." This answer made the reporter opposite me speechless for a moment. Although it may sound self-effacing at first, but if you look closely... Why do I always feel like something is not quite right... Since it was a live broadcast, this content was displayed on the TV screen as is after a short delay. It quickly aroused enthusiastic responses among the students who watched the live broadcast. "Good guy, this answer is so exciting..." "The international mathematics community is full of geniuses. Isn''t this equivalent of Professor Chang saying that even among a group of geniuses, he is the most special one?" "But he''s not wrong... Is there anyone else who won the Fields Medal at the age of 26?" "It''s true what you said..." "Sigh... I''m just a mortal, just like Professor Chang said, just take classes and participate in competitions honestly..." By the time Chang Haonan had finished all the interviews, many people had already left the main venue and headed to the restaurant. However, Wu Wenjun and a group of Chinese scholars still stayed where they were, waiting for him. Only Mr. Chen Shengshen bid farewell to the meeting early due to health reasons. Seeing Chang Haonan return to his seat, everyone quickly gathered around him. Amidst the continuous congratulations, almost all eyes involuntarily glanced at the small box in his hand. Chang Haonan quickly noticed this and simply opened the lid generously and placed the medal on the small table of a seat next to him. In fact, in terms of design alone, the Philippine Awards medals are mediocre. On the front is a relief portrait of Archimedes, plus a string of Greek letters for Archimedes'' name. However, the meaning contained in it is enough to shine with the most brilliant brilliance... "Professor Chang." After having an eye-opening experience at close range, Wu Wenjun returned to the topic first: "Just now we were discussing whether to establish a new mathematics research institution in your name in the country?" "This can bring together good resources and excellent students, and it can also promote cutting-edge research in the field of theoretical mathematics in my country." In fact, as early as about half a year ago, someone from the Chinese Mathematical Society had already put forward similar suggestions. However, in order to avoid giving the impression of popping champagne midway, the matter was not discussed publicly until after the dust settled on the Philippine Awards. "Yes, it can be called Chang Haonan Institute of Mathematics, or Chang''s Institute of Mathematics." Yuan Xiangya stood slightly outside and said: "As for resources... I think all major universities in China will not be stingy on this kind of thing..." For a time, voices of approval came and went around. But Chang Haonan felt a little headache about this. As China''s first Philippine Prize winner, it is obviously unrealistic for him to completely withdraw from the world of mathematics. But I dont want to just dive in head-first The reason why Chang Haonan is able to maneuver in the Science and Technology Commission system, in addition to his incredible project efficiency, is largely because he has been familiar with the various entanglements in it in his previous life. But as for theoretical mathematics... Sorry, I''m so unfamiliar. Even if he himself is able to run rampant and fearless based on the reputation of the Philippine Prize, it may not be a good thing for the entire Chinese mathematics community to rashly get involved and encourage others. "Academician Wu, Director Yuan." After thinking for a long time, Chang Haonan raised his head and looked at Wu Wenjun and Yuan Xiangya who had made the first suggestion. His voice was not loud, but it instantly silenced the noisy surroundings. "I feel that given the current domestic development situation, it is not suitable for such an operation." "Theoretical research is different from engineering projects. Compared with experience and brainstorming, many times it requires more personal study." "Under such circumstances, if the potential of universities across the country is drained and concentrated together, even if some good results can be achieved in a short period of time, in the long run, it may not be beneficial to the development of the academic community." Now, the words spoken from Chang Haonan''s mouth carry more weight than ever before. And everyone who was in high spirits just now also calmed down. "It''s better than this." Wu Wenjun gave the next best idea: "A nationwide scholarship can be established in your name, Professor Chang, to reward young people who have shown outstanding talents in the field of mathematics during their student days." "This funding is not a one-time grant, but will be issued from the time the student wins the award until the end of his studies. As long as he passes the annual basic assessment, this assessment can be carried out by Professor Chang himself or by a group of experts specially designated by Professor Chang. Proceed without others interfering..." "in addition" "besides" At first, Chang Haonan was just listening normally. But the more I listened, the more I felt something was wrong. The other party''s idea was clear and logical, and it didn''t look like something he had thought up on the fly. It wasn''t until this moment that he suddenly realized. It seems that I was tricked by the strategy of lifting the roof and then opening the windows... (End of chapter) Chapter 1042 Air Police 2000 data link antenna Chapter 1042 Air Police 2000 Data Link Antenna Under Wu Wenjuns urging, Chang Haonan finally nodded. He originally thought about whether he should donate part of the prize money as a sponsor in his own name, but he was rejected by the former. According to Academician Wu, Chang Haonan''s ability to agree to give his name is much more important than money. As for the money issue... The Chinese mathematics community is a bit poorer, but it is not unable to support a scholarship that is expected to have no more than 10 winners each year. As a result, the "Regular Prize", which would become famous in the Chinese theoretical research community in the future, was determined in a seemingly random manner at the opening ceremony of the 24th International Congress of Mathematicians. A scholarship is naturally a trivial matter compared to the previous hard work of establishing a mathematics research center. Chang Haonan doesn''t even need to do anything himself. Just interview a few finalists every year. If you really can''t spare the time, you can entrust others to do it, or you can do it online in a few years. This is indeed relatively friendly to him. Therefore, after giving a one-hour report on the morning of the second day of the opening ceremony, Chang Haonan went missing again and did not participate in other subsequent activities of this conference. Fortunately, the mathematics community is used to this kind of situation, and after all, there are still two "normal people" among the four Philippine Prize winners, so this incident did not cause too big a stir... In fact, Chang Haonan had already received a large number of invitations in the afternoon after receiving the award. Just like when the Poincar conjecture was proved two years ago. After all, people at home and abroad are quite enthusiastic about giving hats to celebrities in academic circles to gain popularity. Various honorary degrees, honorary professorships, awards you may or may not have heard of... Dazzled. It''s hard to say how repulsive Chang Haonan is to this kind of behavior. What''s more, many of them said that they can be awarded remotely according to Professor Chang''s personal wishes, or they can be directly expedited and go through the awarding process at the International Congress of Mathematicians. If he could really get a degree or even a teaching position from a top university like MIT, Princeton or Stanford, he would still be willing to accept it. However, after the report was completed, he received news from Hao Jing. The installation phase of the in-cabin equipment of Air Police 2000 has come to an end In addition to the large antenna on the back of the aircraft, the early warning aircraft also needs to install a radar backend in the cabin, as well as a complete data processing and command and control system. The gadgets are okay, but many of them are bulky and not easily removable, making it difficult to get them straight in through the cabin door. For the transport aircraft platform, it can still be sent in through here before the tail hatch is sealed. But as the Tu-214K is a passenger aircraft, and it is a passenger aircraft that has changed the luggage compartment into a fuel tank, it obviously does not have such conditions. It can only be put in through the skin opening on the back of the machine before the disk-type radome is installed. For the Air Police 2000 prototype, which has entered the high-speed stage of modification and changes almost every day, this time window will obviously not be very long. Moreover, Haofei knew that Chang Haonan was attending the International Mathematics Conference. In this case, if you contact me midway, there is a high probability that there are some problems that need to be solved by him, but it is just not convenient to talk about it on the phone. Therefore, after careful consideration, Chang Haonan returned to Haojing before the conclusion of the International Congress of Mathematicians. December 18th. In the cold wind of winter, Chang Haonan, surrounded by several entourage members, walked into the final assembly workshop of Haofei Group. It''s not the one that was used to modify the JH-7. It was used to assemble the H-6 in the past. After all, although the 110-ton platform is not very large when placed in a passenger aircraft, it is definitely a giant if it is thrown into a tactical aircraft. In fact, even this current workshop has undergone some equipment modifications. Otherwise, it would be impossible to install a huge radome with a diameter of 10 meters on the aircraft as a whole. Today is also the first time that Chang Haonan has seen the appearance of the equipment in the Air Police 2000 cabin relatively completely. "Mr. Chang." Liang Shaoxiu, who was wearing work clothes, came forward and shook hands with Chang Haonan warmly: "I happened to catch up with the project seminar the morning before yesterday, and I specially asked someone to record the scene where you received the award..." He looked obviously thinner than the last time we met. It was obvious that he was under a lot of work pressure during this period. In fact, the Air Police 2000 is the only major model in recent years where Chang Haonan has not been involved in aerodynamic and structural design at all. Moreover, Liang Shaoxiu, as a technician from Nanzheng, is now in charge of a project on the border of Haojing. Even if the two parties have always had a close relationship, it is difficult for them to act as freely as if they were at home. "It''s not that it''s not that..." Chang Haonan put on the work clothes handed over to him and waved his hand: "Just some thoughts, nothing special worth remembering..." "If you really want to read it, you might as well read the report I made yesterday morning." "Ouch..." Liang Shaoxiu showed a free and easy smile: "The part at the opening ceremony can make my children happy, but how can I understand the report..." The content of Chang Haonan''s report involves the most cutting-edge abstract topics in the field of differential geometry. Even mathematicians may not be able to understand it. As an aerospace engineer, Liang Shaoxiu is indeed a bit difficult to understand. "Let''s go and have a look at the plane." As Chang Haonan changed into work clothes, the two also ended their chat and returned to the topic. Under the leadership of Liang Shaoxiu, a group of people immediately arrived near the Air Police 2000, which had entered the most critical stage of modification. The huge disc-shaped radome sits here, awaiting final installation. "Mr. Chang, we have tested three data link antenna installation solutions." Liang Shaoxiu introduced: "Judging from the communication effect alone, if it is mainly for satellite communications, then installing an additional antenna directly on the top of the radome is the option with the least impact on the design of the entire machine. However, because there has not been time to conduct electromagnetic compatibility testing, this solution Not very cyclically feasible. "We have reserved an extra mushroom-shaped space at the top of the radome. When the mass-produced Air Police 2000 enters service, this solution should be directly available." "But on the prototype..." He took a step forward and came to the plane with a large piece missing from its back: "Considering the need for direct communication, we plan to set the antennas at the top of the vertical tail and under the nose to cover the communication needs of the upper and lower hemispheres respectively. At the same time, we keep the data link antenna as far away from the radar antenna as possible to reduce the trouble caused by electromagnetic compatibility. Liang Shaoxiu is a technician who grew up following Chang Haonan''s projects throughout the entire process, so he executes the instructions to the letter. After hearing this, the latter nodded with satisfaction. "but" At this moment, Liang Shaoxiu suddenly said: "Mr. Chang, during the testing process, we also accidentally discovered some new problems..." "The reason why I am so anxious to call you back this time is because of this matter." Chang Haonan''s steps then stopped. It was indeed the same as his guess yesterday. "Don''t be afraid if there are problems." As he spoke, he turned back and looked at Liang Shaoxiu behind him: "The purpose of ground testing is to discover problems..." "That''s right." Liang Shaoxiu breathed a sigh of relief: "Previously, the communication system of Air Police 2000 included 2 high-frequency and 3 ultra-high frequency radio stations. Since only voice communication is needed, the selection of communication protocol is relatively simple. It only needs to be determined according to different transmission distances. But now, because of the need for command through data links, the types of communication systems have more than doubled than in the past, and they also involve wide and narrowband over-the-horizon voice, data communication links, external tactical databases, etc. There are many different types of information, as well as different anti-interference technologies such as short-wave adaptive frequency selection, spread frequency hopping anti-interference, digital confidentiality, digital information exchange, etc..." "Although there is no problem with the performance of each communication system itself, before data transmission, different communication methods need to be selected according to the type of data to be transmitted and the transmission target. In this way, the previous manual communication management system is a bit Its overloaded. "For example, during the ground test, when the early warning aircraft is connected to the data link for command, if it wants to communicate with the ground tower via radio at the same time, the communications officer needs to conduct six groups of operations separately. Not only is the efficiency very low, but in actual combat situations there are still Misoperation may occur..." "Well..." Chang Haonan put his hands behind his back, raised his head and fell into thinking. The situation Liang Shaoxiu mentioned can be simply compared to difficulty in choosing. Because there are so many forms of communication, if all decisions are left to people, even well-trained professionals will inevitably make mistakes while busy. So, he quickly concluded: "So, we need to design a sub-system protocol to include all internal and external communication, so as to automatically select the appropriate communication form and technology for different data types...but it cannot be the traditional TCP protocol, or in other words, At least it needs to be improved so that it can adapt to non-homogeneous transmission paths..." As he gradually analyzed, the eyes of several technicians from the Electronic Technology Group next to him gradually glowed... (End of chapter) Chapter 1043 Information air combat Chapter 1043 Informationized Air Combat As a transmission control protocol spawned by traditional network forms, TCP itself does not care about the specific medium in which IP runs. However, in practice, this matter must be taken into consideration, because most TCP protocols are implemented in the process of program implementation. We have all experienced optimization based on some assumptions, many of which are correct on wired networks but not on wireless networks. Take the simplest transmission timeout as an example. Once it is determined that packet loss has occurred based on the retransmission timer expiration or repeated ACK signaling, the current TCP protocol considers that network congestion has occurred, and then enables network congestion policies to reduce the transmission rate, such as slow start and adjust the congestion window is 1 TCP segment. However, the actual situation may be that the data transmission at this time is based on the wireless network. When the ACK signaling cannot be received, it is most likely because the mobile node is switching or the signal of the wireless network is not good. Therefore, correct Instead, the strategy is for the sending node to maintain or speed up the rate. For military equipment, including early warning aircraft, the network media situation is more complicated. From the radar to the in-flight command platform, this process is probably a wired transmission distance of about 1-2km. For the aircraft to send the information to the outside world, it needs to go through a wireless network of 100-200km, or if it is satellite communication, it may be thousands of kilometers. In this case, to make the right decision, you need to first consider which paragraph the problem is... As Chang Haonan walked and analyzed, everyone quickly came to a small room next to the assembly workshop. This place was actually a workers'' lounge at first, but currently Haofei Group''s final assembly business is almost all concentrated on the J-H-7A next door. This workshop for large aircraft does not have many workers who need to take turns to rest, especially the Air Police 2000 Since entering the site, engineers and technicians have been here almost all day long. So in the end it was simply changed into a small conference room. Of course, the conditions are definitely not as good as outside, and there isn''t even a projector that can be connected to a computer. But for Chang Haonan, having a blackboard is enough for most problems. He took the familiar route to the middle of the house and took a piece of chalk from the table at the door. Others sat down on chairs in a circle around them. "Actually, the data that early warning aircraft need to process seems very complex, but it can generally be divided into two categories." Chang Haonan turned around as he spoke and drew a brace on the blackboard: "The first is data that has extremely high timeliness requirements but is insensitive to lost data packets. A typical example is the air condition data detected by the radar of early warning aircraft." "At the target speed of air combat, a piece of information or a piece of information will be useless after a few seconds at most, and for modern phased array radars, the target will not be lost due to the lack of individual points, so communication analysis What the system has to do is to deliver it to the destination in the shortest possible time. Once the transmission fails or times out, it will directly abandon such data..." "The other type requires extremely high transmission reliability, but some compromises can be made in terms of timeliness, such as combat intentions from superior units or conveying action instructions to terminal combat aircraft. This type of data must be 100% complete. successfully communicated, but in most cases, this type of information is valid for a long time and will not lose its usefulness just because it is delayed for a few seconds..." Chang Haonan''s pen moved like flying, and he quickly wrote several keywords corresponding to these two types of information on the blackboard. At this time, a voice came from a corner of the room: "Mr. Chang, the combat instructions you just mentioned should generally be transmitted directly through encrypted radios. As long as the second type of command information is excluded from the functions of the communication subsystem, the remaining parts will be easier to design. " Chang Haonan happened to have finished writing the last word on the blackboard at this moment, and stood up again: "If we only look at the present, this is indeed the best option." "But in the long run, in future information operations, command orders may not necessarily be issued through voice commands." This sentence made the surrounding audience stunned: "ah?" In fact, at this point in time at the beginning of the 21st century, the Chinese military and technical personnel have already begun research and exploration of new combat theories, and have achieved some results. However, due to hardware and cost constraints, these explorations still exist more on paper and in a few experimental units. Most of the people sitting in the conference room are ordinary front-line engineers, and it is normal for them to not know enough about these things. For people of this era, it is relatively easy to understand the matter of "using information flow instead of voice to convey empty information." But using information flow to convey command orders does seem a bit abstract. After all, if it is text, the information density is not as good as speech. Only Guo Lin, who was sitting at the front, lowered his head and pondered, seeming to understand what Chang Haonan meant. "Our past command orders were issued step by step." When Chang Haonan saw this, he explained directly: "For example, the command headquarters issues large campaign targets to the early warning aircraft, and the early warning aircraft then issues air situation information and campaign arrangements to each fleet. Finally, the frontline commander at the regiment or group level arranges specific orders for each combat unit, so that each The level instructions themselves are relatively simple and can naturally be transmitted by voice. "However, even if the information itself can be transmitted within a few seconds, it takes a process for the human brain to understand and process the information, especially for grassroots commanders who are themselves in the middle of a battle." "So, a better way is to let the early warning aircraft or even higher-level headquarters take on part of the low-level decision-making and information processing, and then directly convey the command information to the combat units. In this way, not only the burden on the front-line commanders is greatly reduced, but also the burden on the airborne commanders is greatly reduced. Units can also get rid of the organizational constraints of aviation regiments or aviation groups and conduct operations in smaller and more flexible waves. "But this also means that the content of instructions that need to be conveyed at each level will become extremely complex." Having said this, he rotated the blackboard next to him 180 and drew two circles on it: "For example, if one of our regiments fights against one of the opponent''s regiments, under the original command method, this is equivalent to one unit fighting against one unit. As long as the order to expel, intercept or fire is given through voice commands, as for how to implement it specifically, Thats what the flight commander is worried about. Then, many small triangle symbols were drawn in the circle: "But now, we need to directly command 24 aircraft to fight against the enemy''s 24 aircraft, then..." Chang Haonan looked again at the people sitting around the conference room. "The complexity of the instructions will become hundreds of times greater than before!" Guo Lin picked up the words just right: "So the command information and air situation information need to be sent to each combat aircraft in the form of a data link." "That''s right." Chang Haonan put down the chalk and patted the dust on his hands: "Micro-management has two sides. If it is done well, the weak will defeat the strong with a magic touch. If it is not done well..." He did not continue. However, a burst of laughter still erupted in the small room The transportation team captains micro-manipulation joke has been widely circulated even in this era, so everyone knows who he is targeting. "Information warfare, to a certain extent, is about reducing the difficulty of micro-operation for commanders and reducing the intermediate levels of command to achieve maximum efficiency in transmitting information." After the little joke, Chang Haonan concluded: "And air combat, due to its ever-changing nature, is the occasion where the effect can be most intuitively reflected!" Although Chang Haonan has never successfully joined the army in his two lifetimes, he was an experienced veteran with many project experiences in his previous life, and he still understands these basic concepts quite well. If you go to a military academy to give a lecture, you may still have to show your timidity. It is certainly sufficient for the occasion at hand. Facts have also proven that this explanation works well. Everyone quickly accepted the concept he proposed before and began to think about how to achieve the goal technically. (End of chapter) Chapter 1044 A whole new form of networking? Chapter 1044 A new network form? For technicians who can participate in the Air Police 2000 project, they may feel numb when faced with a lot of information at first, but now, Chang Haonan has divided the types of data that need to be processed into two major categories. Naturally, someone quickly figured out the joint: "Mr. Chang, for the first category you mentioned, which requires time-sensitive data, it may be possible to use the UDP protocol in the Ethernet transport layer of the communication subsystem to achieve as much and as fast information transmission as possible. As for the second category, I think Just make certain improvements on the basis of the TCP protocol to make it adaptable to a mixed network medium of wired and wireless. This proposal quickly received some favorable feedback: "I remember that a few years ago, some scholars proposed to set up a small relay station between wired and wireless transmission. The function is to simply copy the packets in both directions between connections. In this way, the first connection from the sender to the relay station appears. A transmission timeout causes the sender to slow down data transmission, and if a transmission timeout occurs on the second connection from the relay station to the receiver, retransmission is accelerated." However, some people have raised objections: "But the UDP protocol is not reliable enough in principle. Is it really suitable for transmitting military information?" "But other than that, there seems to be no better choice..." For a time, the entire conference room fell into a fierce debate, and no one could convince the other group of people in a short time. However, Chang Haonan did not join in immediately. Instead, he returned to his seat and took a leisurely sip of water - In his current position, although he is not the person in charge of the Air Police 2000 project, as long as he makes a statement, there is a high probability that it will become the final decision. After all, the two chief engineers, Guo Lin and Liang Shaoxiu, had a close relationship with him. Therefore, he is now gradually inclined to provide some guidance but does not immediately express opinions. At least give others room to fully communicate. However, before Chang Haonan could speak again, Guo Lin, who had been acting like a transparent boy just now, stood up: "I think UDP is not a problem, because whether it is an early warning aircraft or a fighter jet, the transmission layer and control layer of their combat systems are separated. It is completely possible to use UDP protocol at the transport layer and then use it at the application layer. Return verification method to ensure the reliability of data. In any case, Guo Lin is literally the chief designer responsible for the Air Police 2000 airborne equipment. As a result, the surrounding area became quiet. Guo Lin looked in the direction of Chang Haonan, and after confirming that the latter had no intention of adding anything, he continued: "The problem still lies in TCP, how to optimize the performance of TCP for different network forms such as HF/VHF/UHF communication links and satellite communication links." "A comrade did mention an idea just now. I''m sorry that I didn''t notice who it was, but I guess this person is not from our Electronic Technology Group..." Speaking of this, there was a slight smile in his tone; "Because the communication method you mentioned does not actually comply with the semantics of TCP, so it will be very complicated to implement at the engineering level..." On the other side of the conference room, someone showed a slightly embarrassed expression. He was indeed an engineer from the Haofei Group and was not from the communications field. He just suddenly remembered a paper he had seen in the past and chose to speak out. It turned out to be a bit of a joke. Fortunately, this is something outside the professional field, so no one cares too much. Since Guo Lin''s words had brought an end to the discussion, Chang Haonan no longer remained silent, but stood up again and returned to the front of the conference room: "Actually... everyone has overestimated the difficulty of optimizing the TCP protocol." He tapped the blackboard lightly and said: "The relay platform we use, of course, does not refer to the relay between wired and wireless as the comrade just said, but the relay in the wireless communication process. In the future, it will be satellites, but in the current test, it is the stratosphere. Airship, this platform has passed the performance test. "Because of the use of brand-new network coding technology, extremely low bit error rates and delays can be guaranteed even in complex electromagnetic environments. Although I can''t say it is at the same level as wired networks, it is at least better than in the past...or existing ones. Wireless transmission technology is much more reliable. These words confused many people present - Wasn''t your old self the first person to say that the TCP protocol should be improved? Why are you now saying that we overestimated the difficulty of this matter? Facing a dozen confused faces, Chang Haonan didn''t show any concern. Instead, he erased the small triangles and circles he had just drawn on one side of the blackboard and filled in a new diagram. As he drew, he explained: "Actually, the idea of ??setting up a relay point between wired and wireless transmission cannot be considered problematic." "Um?" Guo Lin immediately couldn''t hold himself tight. He just vowed to criticize others. If he found out that he was wrong in the end, all the boomerangs would be pierced into his head. Chang Haonan paused deliberately for a while, and then turned around and added: "Of course, Mr. Guo''s subsequent criticism is also correct." "call-" Guo Lin finally breathed a sigh of relief, and his blood pressure, which almost exploded, also dropped. "We can add a probing agent to detect and cache TCP data segments sent to removable hosts, and the acknowledgment information returned." Chang Haonan drew a reverse dotted arrow on the part representing the wired data segment: "When the probing agent finds that a TCP data segment is stopped before the timer expires, but no acknowledgment is received from there, or a duplicate acknowledgment is received, it means that there is a problem with the wired part and the original data segment needs to be discarded Resend..." "And if the response confirms that everything is normal, but there is still a transmission failure in the entire transmission, it means that the problem lies in the wireless part..." "The specific implementation strategy still needs some testing, but because the bit error rate is not high, the path MTU minus the header size of TCP and IP can generally obtain the best performance..." The improvement plan proposed by Chang Haonan is not complicated. It will only take a few weeks or at most one to two months to complete. It is basically software or some small-scale hardware-level measures that can be easily operated in the cabin. , and will not even affect the final assembly progress of the Air Police 2000 prototype. As for the audience below, they looked at each other in confusion. Although no one said it directly, the expressions on their faces clearly showed the same meaning - Is that all? When Guo Lin first discovered this problem, including when Chang Haonan led them into the lounge just now, the solemn atmosphere made people think that the entire Air Police 2000 project would be postponed because of this. Is this the result? And Chang Haonan naturally saw everyone''s psychology. "So far, we have only solved the optimization of the TCP protocol for several traditional communication links, so it is indeed relatively simple." He took a step forward and said calmly: "But don''t forget, the information command system I just mentioned..." At this time, the doubts on everyone''s faces not only did not decrease, but actually increased. After a while, someone tentatively asked: "But... doesn''t that command system also rely on these types of communication links to issue orders?" "Not exactly." Chang Haonan waved his hand: "All the scenarios we are currently imagining have preset a center for the entire communication system, which is the early warning aircraft. Of course, it may also be a higher-level command headquarters, for the same reason." "But in reality, for example, when troops are rapidly deploying and advancing on the battlefield, the communication center cannot move forward simultaneously with the front-line units due to safety or tactical considerations. In this case, the mobile network with a center cannot meet the needs. , but we need a new communication link that can quickly, temporarily, and automatically form a network..." "Distributed communications?" Soon, someone threw out keywords. "Yes." Chang Haonan affirmed: "Thanks to our newly developed relay technology, wireless communications can also perform multi-hop forwarding with low loss and low delay. Therefore, we can use this advantage to design a new form of communication network." When he said "brand new", there were several obvious breathing sounds coming from below. No one thought that Mr. Chang was going to play such a big game So far, the cornerstones of modern human communication technology, such as network structures and communication protocols, are still built by developed countries. For the sake of standardization and globalization, China also chose to adopt most of its contents. After all, it is a process of making wheels. It will probably take another few years to challenge the first-mover countries in this regard. But obviously, Chang Haonan no longer wants to wait. Therefore, he is ready to first test the waters in the military field that does not pursue global integration. Chang Haonan gave everyone a few seconds to recover from the shock. Then, on to the real meat and potatoes: "In addition to multi-hop forwarding, this network should also have the following characteristics." "First, there is no center. All nodes have equal status in the system. It is a peer-to-peer network. Any node can join and leave the network at any time. Even if there is a failure, it will not affect the operation of the entire network." "The second is self-organization. The layout or expansion of the network does not need to rely on any preset network facilities. The nodes coordinate their own behaviors through layered protocols and distributed algorithms. After the nodes are powered on, they can quickly and automatically form an independent network. network." "The third is dynamic topology. Due to application background considerations, network nodes will move anywhere at any time, and may be powered on and off at any time. These will cause changes in the topology of the network, but the network itself must ensure smooth operation." "Therefore, such a communication network is not only significantly different from ordinary cellular mobile communication networks and fixed communication networks in terms of architecture and network organization, but it also requires corresponding adaptation of communication protocols." He returned to his seat, took a deep breath, and looked around: "This is the most important and most difficult task in the next TCP optimization!" (End of chapter) Chapter 1045 The worlds most powerful early warning Chapter 1045 The worlds most powerful early warning aircraft! 2003 is really a special year. What happened in the previous life was repeated exactly in this timeline. Fortunately, today''s Chang Haonan is not a student who can''t help himself. In order to avoid possible risks, he simply stayed in Haojing after going back to do an annual work report in early January. Of course, there must be another explanation for this on the surface - One is to follow up on the development of the Air Police 2000 airborne data system, and the other is to some extent... avoid arousing suspicion. This was what Zhu Linyu reminded him. After winning the Philippine Prize at the end of 2002, Chang Haonan, who holds an international award and three major national science and technology awards at the same time, was enough to ignore the age issue and was included in the 2003 academician selection. It is said that he is included in the selection, but in fact anyone with a discerning eye can see that the results in his hands and the relationship behind them are too strong, and there is almost no possibility of losing the selection. The nomination and recommendation letters alone were signed by more than a dozen big names including but not limited to Du Yishan, Ding Gaoheng, Song Jian, Liu Zhenxiang, Li Jie, Wu Wenjun and even Mr. Qian. In fact, many people included Chang Haonan in the selection for the 2002 National Highest Science and Technology Award. It even ranks second in the entire list. However, when the final decision was made, the superiors still only approved Academician Jin Yilian, who pioneered the Chinese supercomputer industry. The main reason is that the nature of this award when it was established was closer to the Lifetime Achievement Award. And to give a lifetime achievement award to a person under the age of twenty-seven... Other people''s careers have just begun, how can you summarize their lifelong achievements? It is inevitable that people will have a bad sense of dj vu It would be more reasonable to wait until he leaves the front-line research position. In short, unlike most people who need to move around frequently during the critical stage of selection, what Chang Haonan needs to do is to stay away from the capital as much as possible at this time. Lest anyone engage in performance art. For example, they jumped out and exclaimed that Xuefang was invincible. Perhaps this label is a bit strange to put on the head of a person of this age. But it''s not surprising that strange things happened to Chang Haonan. After all, being an academician under the age of 30 is an extremely unconventional thing. Although this kind of clown is unlikely to affect the final selection results, as the first in the entire aerospace power group, at least the first batch of academicians, Zhu Linyu still hopes to minimize such troubles at the level of public opinion. And this just suited Chang Haonan''s wishes, so he followed the trend and plunged into the workshop of Haofei Group... In fact, by the end of 2002, most of the subsystems of Air Police 2000 were already ready, and the only ones that really needed to be tackled were the data link and air command system. But now half Haofei, half Electrical Engineering 14, and Chang Haonan himself are all focused on Air Police 2000. Project progress is naturally not a problem. What''s more, Chang Haonan also adopted a hardware-first development strategy to minimize the impact on the final assembly schedule. Finally, with the hard work of multiple units and thousands of people. On February 15, 2003, Air Police 2000 left the apron for the first time completely relying on its own power and drove slowly along the taxiway to the waiting area... This is certainly not the first time it has been in this position Prior to this, the prototype aircraft numbered 2000-01 had completed four-wheel taxiing experiments. Even in the last test two days ago, it had reached a speed of 120 knots and achieved a smooth wheelie. It proves that the aerodynamic design, especially the center of gravity and directional stability, has no major flaws. But today is especially special. Because Air Police 2000 will truly fly into the sky for the first time. In the flight control room of the tower, dozens of eyes were fixed on the aircraft in the distance. Even for a "veteran" like Chang Haonan, although he has already gone through the entire development process of multiple models and has confirmed all the test results before Air Police 2000, he still has to face the first flight of such a key model. , it is unrealistic to say that there is no psychological pressure at all. Not to mention Liang Shaoxiu, who was fully responsible for the model for the first time. After all, as long as it is a project, there will be hidden dangers. And God''s engineering will maximize the consequences of hidden dangers... As time passed by, the No. 2000-01 aircraft continued to get smaller and smaller in everyone''s field of vision, and finally stopped at the end of the takeoff runway. Compared with the model of the same name that was modified from the IL-76 in the previous Ring Project program, the aircraft is almost one-third smaller, and the size of the radome is also smaller. At first glance, it appears that It does lack the visual impact from the large platform. However, thanks to the back-to-back in-line antenna design, the array size and the number of T/R elements have not been reduced. Coupled with China''s own progress in the field of electronic technology over the years, the effective detection range of this radar far exceeds all competitors around the world during the same period. Among them, naturally, it also includes the Falcon System, which China once couldn''t get. "Unit 01 report!" The calm voice of test pilot Lin Hai came over the radio. It has been almost 7 years since Chang Haonan first participated in the project. The group of test pilots active in the mid-to-late 1990s have basically retired beyond their age. And Lin Hai is the leader among the new generation. Compared with everyone in the tower, he did not show much nervousness when facing the risk: "We have arrived at the take-off area. All flight-related subsystems are running well. The engine speed and rudder feedback have been tested and confirmed to be correct. Request to take off!" The verification subjects for the first flight only cover basic flight performance and do not include the function of the mission payload. In fact, the command system designed by Chang Haonan is still in the process of software debugging and will take some time to be installed on the aircraft. "Permission to take off, and I wish you all the best on the first flight!" Even the flight commander''s voice fluctuated slightly. Since the flight test center is located here, Yan Liang''s tower has witnessed too many test flights and finalizations. But there are actually not many models that actually made their first flight. Therefore, if you only listened to the voices on both sides, you might think that Lin Hai was the one who stayed on the ground... "Copy that! Get ready to take off!" Lin Hai''s reply came immediately over the radio, and the No. 01 aircraft slowly began to accelerate on the runway. Compared with a tactical aircraft of more than ten tons, the Air Police 2000 has a long taxiing time before taking off. And this is one of the most nerve-wracking processes in the entire test flight The downwash effect of the radome on the horizontal tail cannot be completely eliminated, and whether it is numerical calculation or wind tunnel testing, the simulation of this complex effect can only be limited to flight under certain conditions. But taking off and landing, the biggest risk is uncertainty. Therefore, every angle change of the horizontal tail hits everyone''s heart like a heavy hammer. So much so that by the end, everyone''s heartbeats were somewhat affected by Hirao''s rhythm adjustment. When approaching the middle of the 3,600-meter runway, Aircraft No. 01 finally lifted its front wheels. In fact, the aircraft had already exceeded the minimum take-off speed, so the rear wheels also overcame gravity and left the ground lightly. Only the scorching heat waves emitted by the two engines were left, washing over the early morning runway... "call-" For the first flight, as long as it can take off smoothly, saying 80% may be a bit too much, but saying less is half the battle. The remaining half is basically focused on landing. Fortunately, the whole process was smooth sailing without any surprises. According to feedback from pilots, after optimizing the cross-sectional shape, the adverse effects of the radome on flight quality are mainly concentrated on directional stability and reduced flexibility in pitch control. This was not an unacceptable problem for a large aircraft that spent most of its time flying smoothly behind battle lines. "Not bad, very good." Chang Haonan put down the telescope and shifted his gaze from Unit 01, which had landed smoothly, to Liang Shaoxiu next to him: "At least at a qualitative level, it is very consistent with the simulation results before you design." "As for the difference in control rate, it depends on the analysis after recovering the data..." As an "old-timer" who led the latter on projects many years ago, this kind of evaluation is basically equivalent to - It''s time to start training. Liang Shaoxiu also breathed a sigh of relief and raised his hand to wipe the sweat from his forehead. It looked like he wanted to say something. But in the end I couldn''t say it. He just held Chang Haonan''s hand tightly. And a little further away. Wang Xiaomo, the chief engineer of the project, came to Qiao Chenqing, the head of the Air Force, and said what he had wanted to say for a long time, but had been holding back until now because he did not want to open the champagne in advance: "Commander Qiao, I can now confidently assure you that this is the most comprehensive early warning aircraft in the world, bar none!" (End of chapter) Chapter 1046 Anti-stealth capability Chapter 1046 Anti-stealth ability Originally, as the plane landed safely, a burst of cheers naturally erupted from the tower. Except for some command posts who must stay at their posts, most people are ready to go downstairs to welcome the test flight team in triumph. But with Wang Xiaomos resounding words, the originally noisy hall became quiet almost instantly The strongest in the world, bar none! It can be summed up in just eight words, but it is enough for everyone to remember for a long time... Even after half a lifetime. In recent years, China has indeed made significant improvements in many fields. But after all, the starting point is too low, and it will take a relatively long process to implement the technology into the project. Therefore, although some achievements have reached the world''s leading level, when it comes to products, even the top models such as the Turbofan 10 or the J-10 and J-11 can only be regarded as "reaching the world''s leading level." It means being on par with others. It is true that for China, which only finalized the mass production of the J-7E ten years ago, it is already a huge leap to share the title of "world leader" with others. But after all, it is still not as simple and straightforward as it is today. The saying "Comparing with others is meaningless, if you want to surpass the United States, surpass the United States!" The words are still ringing in my ears, and now they have been realized in advance in the aviation system. Not only that, the data link and air command system developed under the leadership of Chang Haonan also completely made up for the shortcomings of the Air Police 2000 model... If I have to say there is a pity, it is only because of the time limit that we cannot use the optically controlled phased array system that is currently being tested in full swing... We can only wait for the next generation of early warning aircraft to talk about this. Opposite Wang Xiaomo, Qiao Chenqing, who came to inspect the first flight, was also shocked for a moment by the former''s determination: "The early warning aircraft with the strongest comprehensive performance..." He muttered it softly, then turned his head again and looked at aircraft No. 2000-01, which had completed deceleration and was slowly approaching the taxiway entrance on the runway. It can be said that soldiers of Qiao Chenqing''s generation have spent most of their lives thinking about how to defeat the strong with the weak. In the years when the conditions were the most difficult, what was even considered was how to use the J-6 with only cannons to fight against third-generation aircraft. Once upon a time, even "missileization" seemed like an unattainable dream. Now I suddenly got a piece of equipment that is stronger than all the imaginary enemies... For a while, it even made people feel a little at a loss. "I remember when the project was established, the effective detection range was 450km?" With Qiao Chenqing''s position, it was not suitable for him to act too pretentious at this time. So I had to shift the topic to the technical level. "That number... doesn''t really matter." Wang Xiaomo explained as he walked out the door: "You know, in actual combat, the target''s relative height, orientation, RCS, movement trend... these will affect the detection effect of the radar, and our Air Police 2000 uses a phased array system, plus dual-sided C-band and L-band The formation can basically deal with all different types of targets to the maximum extent. "Even for stealth aircraft, because the focus of optimization is the X-band, it will be easier to detect when faced with relatively low-frequency radars such as the L-band." This point can be said to hit the key point that Qiao Chenqing is most concerned about. At this time in 2003, the test flight of YF22 has entered the final stage. As a model that was developed at the end of the Cold War, ATF has not been contaminated by many of the procrastination habits of U.S. military projects since the 1990s. Anyone with a discerning eye can see that F22 will be officially mass-produced in two to three years at most. By that time, the Chinese Air Force, which has just acquired the third-generation fighter jets for a few years, will once again find itself in a situation of generational differences with its opponents. Although the purchase volume of F22 has been cut again and again, it has been reduced from the initial four-digit estimate to about 200 today. But stealth aircraft, after all, still have a qualitative difference. The B2 shot down in the Balkans a few years ago may have symbolized the end of stealth aircraft in the eyes of outsiders. But those who know the inside story will know how many extreme coincidences and new technologies are behind that result. Instead, it proves the value of stealth aircraft. Therefore, when he heard Wang Xiaomo talk about anti-stealth, Qiao Chenqing almost couldn''t walk immediately: "That means that even if the American F22 officially enters service, we will still have a way to deal with it?" This question is not easy to answer. So much so that the former hesitated: "Hmm... If we only rely on a single method, there will still be hidden dangers when facing stealth aircraft. At least the L-band detection accuracy is not enough, and due to the limitation of the physical size of the antenna, it is difficult to install it on a fighter jet. It is best to implement multi-platform, Composite reconnaissance with multiple detection sources is exactly the area where data links can play a role..." At this time, Chang Haonan, who was walking beside but never spoke, also added: "And to take a step back, even if we can detect stealth aircraft with existing technology, stealth is only one of the many advantages of fourth-generation fighters... You should have seen that when third-generation fighters face second-generation fighters, The same principle applies to all-round advantages. "Anti-stealth technology can only narrow the advantage, but if we want to truly fight against fourth-generation fighters, we can only equip ourselves with fourth-generation fighters." "We are also equipped with fourth-generation aircraft..." Qiao Chenqing put his hands behind his back and looked deeply to the horizon with his eyes, as if he was imagining that there was a fourth-generation fighter jet with the August 1st military emblem flying there. As a political worker, the reason why he was able to act as commander of the Air Force was largely due to the sudden deterioration of his predecessor Liu Yaoshun''s physical condition. Taking into account the age factor, it is likely that he will take a back seat in a few years. Therefore, Qiao Chenqing felt in his heart that there was a high probability that he would not be able to see the day when China''s fourth-generation aircraft entered service while in office... The successful first flight is just the beginning of a long testing phase. As the saying goes, the first flight is difficult, and finalization is even more difficult. Since the gap between the Air Police 2000 and the Air Police 200 is too large in terms of aerodynamic structure and airborne equipment, it is difficult to refer to the relevant experience in the development process of the latter. A lot of things need to be started over. The most special one is naturally the command system that Chang Haonan is responsible for developing. This is also the most essential difference between Air Police 200 and Air Police 2000 - The former only moves a radar to the sky. Specific combat command and decision-making still need to be completed by ground command posts or front-line fighter jets. The latter is a true Air Force combat center that integrates multiple functions such as reconnaissance, command, control, and communications. There is also a huge difference in levels between the two. In actual combat, the Air Police 200 only needs one officer at the level of major or lieutenant colonel to be responsible for uploading and distributing information. However, Air Police 2000 may require a division-level commander to ensure that he has the highest authority in the entire airspace. Therefore, while the Haofei Group carried out high-density test flights of the aircraft itself, the team led by Chang Haonan also completed the software design of the airborne command system as quickly as possible. In terms of steps, there is not much difference between software projects and hardware projects. It should also be divided into principle verification, technical verification, engineering verification... and other processes. The only difference may be that due to the reproducible nature of the code, there is no need for an additional production finalization. The current command system is in the process of transition from principle verification to technical verification. In order to realize this process as quickly as possible, Chang Haonan reduced the number of available nodes in the system from the maximum 200 in the finished software plan to 20 without changing the underlying logic of the software to speed up the development progress - Anyway, this round is just a technical verification and does not require a complete restoration of the actual situation. 20 goals are not enough. Thanks to this simplification, the Air Police 2000 command system was installed on the prototype in the form of an Alpha test version only twenty days after the first flight. This also means that this model is truly functionally complete. Then the next step is naturally to conduct airborne equipment level testing with combat aircraft... (End of chapter) Chapter 1047 A new form of air combat! Chapter 1047 A new form of air combat! 2003, March 6. Hao Jing, Yan Liang. The weather is fine. For an airport like Yanliang, which mainly caters to aircraft manufacturers and flight test institutes, it is rare to see such a "spectacular" scene. After all, even if multiple models are tested here, considering the command department''s capacity, it is almost impossible for multiple aircraft to take off at the same time. But today, the situation is completely different. On the tarmac, dozens of support vehicles and hundreds of ground crews were busy conducting various inspections and preparations for takeoff for more than a dozen aircraft of different models. In addition to the most conspicuous Air Police 2000, there are also 4 J-11B/BS, 4 J-10A/AS and 3 J-7A. Based on the current production speed of China''s military aircraft, this is almost all the new aircraft delivered in the past half year from August last year to now. Without exception, all are equipped with data link receiving antennas during production, so they can be incorporated into the command system of the early warning aircraft. As for those produced earlier... There is no other way but to wait for the mid-term return to the factory and install it again. As for those older models earlier than the J-8C, they are limited by the basic hardware level and there is no possibility of undergoing this transformation. Obviously, these eleven aircraft will serve as "friendly forces" in today''s test flight to test the communication, control and command capabilities of Air Police 2000. At ten o''clock in the morning, following the flight commander''s order, the first Air Police 2000 aircraft slowly slid out from the tarmac and came to the waiting area to prepare for takeoff. Since the climb rate and speed of large aircraft are low, and the wake turbulence during takeoff may affect subsequent aircraft, for efficiency reasons, the other 11 fighter jets will take off 15 minutes later. On the other side, for the first time today, Chang Haonan and others did not wait in the control center of the tower to watch the test flight as usual. Instead, it appeared next to a communications vehicle on an SX2190 chassis. There are already data links and relay communication airships anyway, so adding a ground terminal in addition to the 11 aircraft to check the situation is also a matter of piggybacking. As a result, Chang Haonan, Wang Xiaomo and others became the first lucky ones in China to directly witness information-based air combat... Half an hour later, 12 aircraft completed their assembly in four reserved airspaces - In order to test the effective range of data link relay communications to the maximum extent, three types of combat aircraft were arranged in three airspaces about 80-100 kilometers apart. Among them, the J-10 and J-11 each flew in the same direction at an altitude of 8,000 meters, roughly forming a straight wall in the air to simulate the interception of air targets in an entire area. The JH-7 cuts in from another direction below 1,500 meters, simulating ground attack aircraft operating at low altitudes and interfering with ground targets on the battlefield. Air Police 2000, which serves as a command post, hovers alone about 120 kilometers away from the first three. Considering that the AIM120B that our army mainly faces only has a range of about 70 kilometers and the no-escape zone is even shorter, this position can basically ensure the safety of the early warning aircraft itself. Of course, in actual combat, early warning aircraft, as high-value targets, will also have their own dedicated **** fleet. But this is a test after all, not an exercise, and the Chinese Air Force currently has only 11 fighters equipped with data links, so it wont be wasted on simulated escorts... The targets that the early warning aircraft will detect are a group of J-7B fighter jets taking off from an airport in the northwest - Although its own performance has fallen behind, thanks to its clean and simple appearance, the RCS of the MiG-21/J-7 is not too large when mounted without wings. Compared with a target drone whose target features are too small, the corner reflector is too obvious, and cannot fly too high or too fast, sometimes it is a better test object. Chang Haonan even thought about whether to refer to the American QF4 and QF16 target drones in the future and convert a batch of retired J-7s into professional unmanned target drones. This can even be used for live-fire testing... In short, for a mechanical scanning radar with the technical level of the 1473/1493 in the 1990s, it may have to be 150 kilometers away from the target, or even closer, to stably detect the two J-7 twin formations attacking from the opposite direction. This distance is naturally enough for firing medium-range projectiles, but it is too short if you want to control the overall situation in advance. Moreover, the scanning range of the nose radar is also very limited, and is only effective within a cone-shaped area of ??approximately 40-60 directly ahead of the heading. For example, right now, the two four-machine formations at the front are facing exactly this situation. Because before taking off, they did not receive the specific direction information of the incoming target, and they are currently only searching generally towards the west. In the cockpit of one of the J-10s, the lead pilot Xu Wenzhao was scanning the left and right sides of the aircraft. Although he knew that it was impossible for those MiG-21s to break into positions within his visual range, as a Chinese pilot, he was accustomed to fighting alone or with several aircraft of the same type. In this case, detection blind spots are simply impossible to avoid. Therefore, always paying attention to the situation around him has become a habit engraved in his bones. If the flight plan does not allow it, he will even roll every once in a while to observe the blind spots below and behind the aircraft. As for the big guy following behind, of course he knew it was powerful in theory, but he didn''t have any particularly practical feeling. "Qinling Squadron, report your respective situations!" Xu Wenzhao said habitually to the radio. During this test, the HF radio station used for long-distance calls was strictly required to only receive and not transmit, so it was unable to communicate with the early warning aircraft or the other two fighter groups. However, in order to ensure basic flight safety, UHF radio stations used for short distances are still fully usable. Soon, the deputy squadron leader and two wingmen responded respectively, but no target was found. This result was not what Xu Wenzhao expected. After all, if four planes line up and point in the same direction, the radar search range is actually about the same. This made him feel a little awkward. He even wanted to direct his four aircraft to fan out to cover a range of approximately 180 in the northwest direction. Of course, this is clearly not allowed in the flight plan. "Squadron leader, we have been in the mission airspace for more than ten minutes, but we haven''t even detected the shadow of the target..." The voice of wingman weapons control officer Duan Su Hao came from the radio: "Is it possible that the early warning aircraft has detected the target, but because the high-frequency radio is turned off, it cannot notify us?" As the useless backseat ballast on this flight, he had reason to be bored. Xu Wenzhao lowered his head and glanced at the multi-function display. No target appeared on it. "Before takeoff, the technical staff said that the targets detected by the early warning aircraft will be directly shared with our aircraft..." He didn''t give a direct answer, but went around a bit. However, Duan Suhao still felt something was wrong: "But if this is the case, even if the target has not entered the detection range, at least the 11 aircraft on our side should be able to display it... But now there is nothing?" This question made the four pilots'' hearts sink. Because they have to constantly pay attention to the flight situation, they don''t have much time to think about this. But after being reminded by Duan Suhao, they all felt that what he said seemed to make sense. If the data link is really that magical, it should at least let us know where the friendly forces are, right? But now the multi-function display is empty... In fact, what they don''t know is that this is part of the test itself - In order to obtain data from the experimental group and the control group at the same time during a test flight, the data link and command system will be turned off by default and will not be remotely activated until a specific time during the flight. And just right. This "specific time" is now. Just when Xu Wenzhao raised his head and was about to say something again, Duan Suhao''s excited voice suddenly came: "Report to the squadron leader, the monitor is responding!" The former lowered his head subconsciously and found that a dozen symbols of different shapes appeared slightly abruptly on the multi-function display that was empty just now. Almost instantly, he judged the meanings of those symbols. A hollow diamond undoubtedly represents an early warning aircraft. Four solid dots and four triangles represent two different types of friendly fighters. The height of the three hollow inverted triangles after selection is only 2300, indicating that they are the three JH-7A. Then, the remaining four T-shaped marks flying at high speed on the side of their formation are undoubtedly... "My formation is in the direction of 270, 200km, two batches, four targets!" He shouted over the radio almost instinctively. Then prepare to assign interception missions to the four aircraft of this squadron. However, before he could even say his next sentence, the information on the multi-function display increased again Eight dotted lines appeared between eight friendly fighters and four "enemy planes". If you look closely, you will find that there are exactly two corresponding to each enemy aircraft. Moreover, they are all the closest. Xu Wenzhao''s order was stuck in his throat He suddenly realized that even the first sentence he just shouted could only serve as an emphasis, not a command. Because the information on the display was far more accurate than what he conveyed by voice. As for the more complicated command commands, there was no chance to even shout them out... Although his whole body was wrapped in a thick flight suit, Xu Wenzhao still felt a chill down his spine at this moment Its completely a dimensionality reduction blow! Not to mention there are four J-7s on the opposite side. Even if fighter jets and early warning aircraft are used with exactly the same model and quantity, the efficiency and accuracy of traditional command methods will still be crushed by this new combat form... (End of chapter) Chapter 1048 Do you want A to shoot and B to guide? Chapter 1048 Do you want A to shoot and B to guide? At almost the same time the fighter group received early warning and command information. Yanliang Airport. Chang Haonan and others who were waiting for the test situation near the relay communication vehicle also saw almost the same picture on the screen of their laptop computer. The reason why I say almost is because the color gamut of multi-function displays of fighter jets in this era is very narrow, so for things such as radar information charts that are simple and easy to understand, they will simply be made in monochrome. However, the conditions of the early warning aircraft and the ground terminal are much better, and at least normal LCD monitors can be guaranteed. So some colored parts will be added. For example, you can distinguish between friend and foe by color, not just the shape of the target mark. Coupled with the larger screen size, the viewing experience is excellent. Even if you dont have any experience in air combat, you can understand the basic situation of the entire mission airspace in a short period of time. As for the four "enemy planes" that were waiting for opportunities to carry out sneak attacks by relying on the blind spots of the fighter jets'' radars, they seemed to have become thieves trying to get close to the fire to steal something in the dark. His intention was immediately exposed to everyone''s view. "Hungry thief..." Behind Chang Haonan, someone was even so shocked that he uttered a phrase in Qin Province dialect expressing surprise. Although the former had roughly explained the functions and operating logic of this system in the test task meeting a few hours ago, if you have not fully participated in the entire development process, it is actually difficult to form an intuitive understanding just by listening. Therefore, the shocking scene on the screen hit everyone like a heavy hammer without any preparation. It is no exaggeration to say that my mind is buzzing. Qiao Chenqing, who had come here for the second time in a month, bent over and put his head in, wishing he could get into the computer. After a while, he stood up straight again: "The Art of War says that if you know yourself and your enemy, you will never lose a hundred battles." "In ancient times... let alone ancient times, even in modern times, knowing yourself and your enemy is something that only the top military strategists can do..." He put his hands behind his back and said with some emotion: "But now... any commander who has undergone standardized military training seems to have such an ability..." A slightly younger school-level officer next to him used a more concrete description: "Isn''t this... almost like a video game?" "You can directly see the deployment of your own and the opponent''s troops on the computer, then issue command orders through the computer, and finally receive feedback on the battle situation..." It can be said that everyone realized the huge value of this command system in an instant. This even completely exceeded Chang Haonans previous expectations The reason why he organized such a "live broadcast" activity was mainly because he was worried that the test results would not be reflected and that the Air Force leaders might not be able to realize the importance of this information system. But judging from the results in front of me... It works great. Even, a little too good. So much so that Chang Haonan felt that he needed to cool everyone down... It is true that informatization is a good thing, but it is not a panacea in the face of the ever-changing and extremely uncertain actual situation. In a complex system, the weakest and most reliable part are people. Letting leaders take the lead now may have the opposite effect when they face reality later. So, taking advantage of a gap when no one was talking, he quickly reminded: "Everyone, what we are currently simulating is just a relatively simple air situation. The number of enemies and ourselves is relatively small, and the opponent''s target is an aerial target that is easily detected, so the effect is so intuitive..." "But in actual situations, there may be countless air and ground targets in a battlefield area, and it is difficult to obtain them all through a single reconnaissance method. Moreover, the opponent cannot sit still and will always use some technical or tactical means. To interfere with our battlefield intelligence acquisition process..." Chang Haonan''s original intention is actually to let everyone view new technologies rationally and not to have expectations that exceed reality. However, Qiao Chenqing was obviously wrong... He immediately interrupted the former: "Comrade Haonan, I understand what you mean." "Early warning aircraft alone are not enough. We also need more other reconnaissance platforms, such as... battlefield surveillance aircraft like the E8, which are mainly used for ground surveillance, and reconnaissance aircraft like the RC135. In the future, we can also consider using the army and navy , and other reconnaissance platforms in space are also included..." "But you also know that the country is still in a critical stage of economic construction, and the military is also in difficulty. The annual equipment construction costs are really limited, and it is impossible to launch so many projects at the same time... But I promise you that I will do my best to support R&D and production of new equipment After all the assurance, Chang Haonan was a little confused as to how to answer the question. After all, he really never thought that his casual words could have such an effect... However, at least the original goal was achieved. And supporting the development and production of new equipment isn''t a bad thing either. Therefore, Chang Haonan finally thought about it and did not continue to get entangled in these details. While the two were talking, the situation in the air had also undergone tremendous changes. The eight aircraft that were originally searching due west followed the interception mission assigned by the early warning aircraft and accurately turned to a position slightly ahead of the target route - As long as the headings of both parties remain unchanged, this can achieve a higher approach rate than flying directly at the target. In order to delay the time when the target radar warning system is triggered, the radars of the eight fighter jets are always maintained in a search mode with a lower scanning frequency. In fact, for a fighter of the J-7B''s level, its RWR simply cannot respond to the locking of modern radars. But its a simulation test. Just like the Army next door uses the 59 to simulate the M1A2, the J-7B is not necessarily the J-7B. Can be regarded as F16. "What a pity... Our fighter jets are still using mechanical scanning radars. The warm-up and start-up time is too long..." Chang Haonan looked at the screen and sighed: "If it is a phased array radar, you can even turn off the radar directly at this stage and turn it on temporarily before locking, which will improve the concealment." His aggressive thinking made many people around him feel a little nervous. Although China has put into service AESA shipborne radars and early warning aircraft radars, due to cost, process and volume constraints, airborne AESA suitable for fighter jets is still under development. And the Air Force is now quite satisfied with the performance of the 147X series radars... "If the other party also has an early warning aircraft, the concealment may not be very important." Someone soon expressed relief: "If you really want to tell me, it''s a pity that the missile range is not enough..." "Look just now, when the fighter jet was more than 200 kilometers away from the target, it had already obtained the target position through the data link, but in the end it was safer to fly about 50 kilometers to launch the attack..." "It''s not entirely about the missiles." Another person then followed up: "The Thunderbolt 13, which was trial-installed in small batches last year, can theoretically hit about 160-180 kilometers in anti-air mode. But even if the missile can hit 200 kilometers, the fighter radar cannot lock on to the J-7 at such a long distance. No matter how big or small the target is, you still have to wait until it flies within 100 kilometers..." "So I think what Mr. Chang just said makes sense. If the problem of fire control radar is not solved, the benefits of just extending the missile range will be very low..." As the test situation gradually became clear, the topics discussed became more divergent... Soon, someone came up with a great idea: "By the way...since the early warning aircraft can already send the detected target information to the fighter jets and us, can we go one step further?" "That is to let the fighter jets hide in the distance to launch missiles. After the attack, they are handed over to the early warning aircraft for guidance. They approach the target about 10 kilometers and then switch to the missile''s own active radar to lock the target. This can completely increase the theoretical allowable range of the air-to-air missile. At the level of 400-500 kilometers, it can also circumvent the requirements for the performance of fighter fire control radars..." "puff-" "Cough cough cough" Chang Haonan was drinking water next to him, but after hearing this, he squirted out. He was very familiar with this idea. A shoots and B directs. Twenty years later, the idea is still stuck on PPT. Only a few incomplete tests were conducted... It belongs to let yourself go. The people nearby didn''t care to continue the discussion at this time, and quickly helped Chang Haonan, who was choking on water, to sit next to him. "Then what..." Chang Haonan, who finally recovered, put the water bottle aside and replied helplessly: "I think we should consider using AESA on fighter jets." "This is much simpler than guiding air-to-air missiles from an early warning aircraft..." (End of chapter) Chapter 1049 New tactics pilot unit Chapter 1049 New Tactics Pilot Unit Chang Haonan''s reaction immediately aroused some confusion. After all, A-to-B guidance is not a new concept. In fact, using airborne radar to relay and guide anti-ship missiles launched by warships or submarines has become one of the very mature tactics of the Red Navy in the late 1970s. Although that was indeed the peak period of the other country, in terms of communication technology alone, there is no reason that China in the early 21st century should be inferior to the Soviet Union more than 20 years ago. So it took Chang Haonan about twenty minutes to finally explain why this "A shot and B guide" was very difficult to implement. The main reason is that the nature of the goals is too different. Surface ships are generally 200-300 meters long, have a maximum speed of only 30 knots, and can only move on a two-dimensional plane. The wingspan and length of aircraft are generally about 20 meters, they can reach speeds of 600 knots or even faster, and they can also move around in three-dimensional space. The latter''s requirements for target refresh rate and communication delay are far more than 20 times that of the former. In the same way, the two processes of searching and locking have very different requirements for the target refresh rate. Therefore, the bandwidth occupied by providing guidance for an air-to-air missile is likely to be two orders of magnitude greater than that of guiding an anti-ship missile or sharing target information with friendly aircraft. With the communication technology of the early 21st century, it is far from having the luxury to allocate precious data link bandwidth to such usage needs. In addition, in terms of hardware, each missile first needs to be equipped with an airborne two-way data link of the same level as the aircraft. The resulting cost issues can be imagined. Even if you exclude the factor of money, the size of a complete set of antenna and processing systems at the beginning of the 21st century is quite large. For airplanes, of course, you can just find a place and stuff it in wherever you want. But on air-to-air missiles where every inch of space is extremely valuable, it is actually not easy to leave a large enough space. Taking a step back, the C-band radar of the early warning aircraft was not designed for fire control. Its accuracy is limited and it is not enough to guide the air-to-air bombs to a close enough position. Not to mention the L-band on the other side. In short, if you only test it once or twice under ideal conditions, it may not be impossible to succeed. But if you want to use it in real combat... All I can say is that the future is promising. This result can only be said to be not unexpected. After all, less than an hour ago, China achieved data link communication between an early warning aircraft and a combat aircraft for the first time. Even centerless data sharing between two combat aircraft has not yet been tested. Its indeed a bit too early to want to do other fancy things right now. However, logic is logic. A little pity is inevitable. Looking at the scene in front of him, Chang Haonan suddenly had an idea. After about half a minute of brainstorming, he roughly determined the feasibility of this new idea: "Although under current conditions, it is still somewhat difficult to use early warning aircraft to guide air-to-air missiles, we may be able to change our thinking." Originally, everyone else had already looked at the computer screen again. As a result, his words drew everyone''s attention back. "How to say?" a senior staff officer asked curiously. "If you use fighter jet radar to guide surface-to-air missiles... it will be much easier." Chang Haonan expressed his thoughts: "Because surface-to-air missiles, especially long-range surface-to-air missiles, are large enough, they can be relatively easily stuffed with some additional hardware equipment. You can even design a communication system specifically to be responsible for the communication between the aircraft and the missile without relying on a universal data link. information transmission, and the missile-borne guidance radar is also large enough to complete autonomous locking at a distance from the target, so there is not such a high demand for guidance accuracy and transmission delay..." "Of course, this is only from a technical perspective. The actual project implementation will not be that simple, and the most important thing is... the cost may be difficult to bear." His original intention in saying this was just to comfort the people who just suffered. It''s just the Air Force leaders who are attacking, and they don''t really want to come up with any specific product. Because there is another issue that he did not mention. It''s the range. The longest range of surface-to-air missiles at the beginning of the 21st century was only about 150km, and ground-to-air missiles were generally deployed far away from the contact line. After calculation, it was actually not much different from fighter jets launching their own missiles. When surface-to-air bombs with a range of 300km are available in the future, it will not be too late to consider this matter. However, Chang Haonan still clearly underestimated the desire of today''s PLA commanders and fighters to pursue new technologies and new tactics. And the level of trust in him. "Sounds like... quite useful?" After a period of silence, the first comment was on Chang Haonan. Unexpectedly, someone else responded: "really" "In this way, at least when facing a large number of low-altitude targets, the ground-guided troops can respond in advance, instead of just watching and functioning at the end..." Hearing this, Chang Haonan suddenly realized something - Due to the rapid development of China''s various technologies in recent years, my understanding of this era has been much slower than when I was first reborn. After all, its only 2002. The new three-on-three-defense approach is still a key issue that the Peoples Liberation Army needs to consider. Especially the anti-cruise missiles among them. Compared with previous years, the pressure has not only not decreased, but has increased. Because after huge mistakes occurred in the Allied operations, the U.S. military also quickly upgraded its military GPS terminals to the third generation in the following years. At least in a short period of time, the effect of electromagnetic interference will be compromised. In this context, the technology that allows surface-to-air missiles to overcome the curvature of the earth and attack low-altitude targets hundreds of kilometers away is obviously very attractive. After all, although China''s air-to-air bomb equipment has increased rapidly in recent years, it is still reserved according to the standards of normal air combat. If it is used to intercept a huge number of cruise missiles, it really seems a bit stretched... "Comrade Haonan, do you have any research and development plans for this type of technology now?" Qiao Chenqing obviously felt that what came out of Chang Haonan''s mouth was probably being advanced quietly. It should be said that this situation did happen many times. But not this time. The latter quickly shook his head: "It was just my idea, there is no research plan yet..." "Then what if..." This time, Chang Haonan could guess what it meant without the other party finishing his sentence: "If there is a real need, we can develop it based on the existing data link technology and conduct a few test launches to see the situation. This matter is not difficult. Let the comrades of the Aerospace Science and Industry and the Electronic Science and Technology Group cooperate and it should be completed. " "It''s just that if we want to test it, it will involve aviation, ground guidance, radar and other units. I''m afraid it will require special coordination from the Air Force..." Now almost half of the Air Force leadership stood next to Chang Haonan. Coordination, of course, is not a problem. But Qiao Chenqing obviously had other ideas. After lowering his head and thinking for a while, he turned to the staff officer beside him: "Can we go one step further and use the current Dingxin training base as the backbone, and then include other arms besides aviation, to build a long-term future-oriented pilot unit specifically for new technologies and new tactics?" (End of chapter) Chapter 1050 The whereabouts of seven aircraft carrie Chapter 1050 The whereabouts of seven aircraft carriers Although Dingxin Base has always been called "Chinese version of Area 51" by outsiders, those who know the situation know that there are still many differences between the two. But if Qiao Chenqing''s idea comes true, then the name of China''s Area 51 may really be placed on Dingxin Base. Including Chang Haonan, after a short period of thinking, he also realized that this matter could play a significant role in promoting the technological development of the Air Force and even China as a whole. Apart from anything else, it is obviously unrealistic to spread the data link that has just been tested to the entire army in a short period of time. On the one hand, the cost of the Air Police 2000 itself is extremely high, and it may be difficult for the Air Force to purchase it in large quantities in the short term. On the other hand, it is also more important. This test was successfully achieved through data relay through several stratospheric airships. You know, Chang Haonan has been planning this matter since last summer. It took almost half a year to deploy several airships Although the airship is very stable when floating in the stratosphere, the process of floating up from the ground places high environmental requirements. Its not that easy to catch the time window. For a military operation that requires timing, half a year is still too long to prepare. But when it comes to high-throughput relay communication satellites operating in low orbits... Obviously it''s not something that can be tinkered with in a year or two. However, as the saying goes, it is better for people to wait for equipment than for equipment to wait for people. A more realistic approach is to first use this pilot unit to study various new technologies and tactics under informationized conditions in the northwest Gobi, and then gradually promote them to the entire army. After the communication constellation is completed, combat effectiveness can be immediately formed. There are actually many technologies like this that are feasible in principle, but are temporarily inconvenient to promote due to external conditions... For a moment, Chang Haonan wanted to stand up and express his support for Qiao Chenqing''s idea. But in the end he didn''t speak. After all, this matter involves the sensitive issue of changes in the military establishment. As an outsider, it is really not easy for him to interfere casually. Fortunately, although there were some arguments among the people at the scene, they finally reached a consensus and prepared to choose a suitable opportunity to report to their superiors... At this time, the simulation test hundreds of kilometers away finally ended. All four incoming targets were "shot down", and the entire process was under the control of the command system. It proves that the entire system designed by Chang Haonan fully technically meets the needs of refined and flat command in air combat. As for the next step, it is natural to expand the number of nodes allowed in the system to reach the 300 originally planned, and at the same time further optimize the newly developed centerless communication network so that the entire military, not just air nodes, can be included in the system in the future. within the entire chain of command. Of course, this is a long-term goal spanning more than ten years... At the same time that the data link and command system tests hosted by Chang Haonan were successfully carried out in the Northwest. Capital City, Tanzhou. National Remote Sensing Center. "Dong dong dong" Li Nianheng, the general manager of the remote sensing mission, was concentrating on his work when he heard a rapid knock on the door. He frowned when his train of thought was interrupted, and raised his head irritably: "Come in!" As the office door was pushed open, a staff member with a National Oceanic Administration badge walked in from the outside in a hurry. But after recognizing the person, Li Nianheng suppressed his depression in his heart. He Mingkun, a remote sensing engineer who was sold to the Space Administration by the State Oceanic Administration. The reason why I say "sell" is because considering the particularity and sensitivity of Ocean One, Wang Shuguang originally wanted to choose to be the hands-off shopkeeper and hand over the ownership of the entire satellite directly to the Navy. But the proposal was rejected by Luan Wenjie. The reason is that the ownership transfer operation is too expensive. It is equivalent to directly indicating that Haiyang-1 is a military satellite. Therefore, in order to avoid getting access to confidential information as much as possible, Wang Shuguang directly placed He Mingkun in the space agency on a "long-term secondment" and was responsible for all matters related to Ocean One as his natal family member. The meaning is obvious - I''ll leave the confidential matters to you. Don''t spill the blood on anyone else... For He Mingkun himself, this is not really a good job. The main reason is that after being addicted, everything you do will be affected, which is really inconvenient. But it''s not without its benefits. His file is in the Ocean Bureau. Salaries are also paid by the Ocean Administration. But what we come into contact with every day are aerospace systems. This kind of person with a "clean background" is actually very popular with leaders... "What''s up?" Li Lianheng put down the pen in his hand and asked. "Mr. Li, in this recent cycle, the frequency of Ocean One sending back valid data has increased significantly." He Mingkun put an information box in his hand on the table: "Especially since yesterday, the satellite has even determined that more than 90% of the information is valid. In the end, it occupied three data transmission windows. It was not until an hour ago that the complete content was transmitted back." "This is the relevant report, please take a look." Upon hearing this, the remaining unhappiness in Li Lianheng''s heart dissipated instantly. He quickly pushed the half-approved documents on the table to the side and opened the information box. Since the Kitty Hawk''s track was accidentally photographed during the first test last year, Ocean One''s status has skyrocketed. Not only the National Space Administration and the Navy, but also higher-level leaders specifically inquired about the relevant situation when they came to inspect. After that, it often photographed some suspected targets. The recognition accuracy is about 70%. However, as a solar-orbiting satellite, Haiyang-1 scans the entire earth''s surface in every complete cycle, so most of the returned information is of little practical significance to China. It only requires routine recording and comparison with subsequent public reports to identify the subject. However, despite multiple reports in a short period of time, this situation has never occurred. After all, when the automatic screening program was designed, several typical aircraft carrier ports such as Norfolk and San Diego were specifically excluded from the information warning. In other words, even if an aircraft carrier is photographed in these places, it will not be judged as valid information... Inside the information box, there are more than a dozen reports that have been bound separately. Judging from the imaging time, they should have been captured within a dense window of about 20 hours. "By the way, please contact Mr. Chang Haonan and inform him of the situation." Li Lianheng raised his head again and said to He Mingkun: "As for the report..." He hesitated for a moment: "According to regulations, this cannot be copied. If Mr. Chang has time, you can ask him to take a look." But He Mingkun replied: "Mr. Chang...should not be in the capital right now." "Um?" Li Lianheng was stunned: "It seems that the Science and Technology Committee is about to be reorganized. He is not in the capital..." After saying this, the sentence stopped abruptly. "Oh...I know." Li Lianheng nodded with emotion and turned his attention to the document in his hand again, thinking that Mr. Chang''s academician hat should be a sure thing... However, before he had time to think about this matter, the contents of the report made his pupils tremble. After being stunned for more than ten seconds, he quickly opened the second report. Then came the third and fourth copies... As usual, each report corresponds to an imaging range that captured a suspected aircraft carrier target. But the special thing is. In several of the imaging ranges, there is more than one suspected target... In fact, in the largest picture, three appeared at the same time. Of course, since it is multiple imaging, some of them are obviously repeated. But even if these are excluded, the whereabouts of at least 7 aircraft carriers can still be found - Three of them are located in the Eastern Mediterranean. Two are located in the North Arabian Sea. One is located in the Persian Gulf. There is another ship in the western Indian Ocean. Judging from the direction of the wake, it is also on its way to the Gulf area... Obviously, the Americans are planning to do something in this area... (End of chapter) Chapter 1051 To deal with aircraft carriers, just dis Chapter 1051: To deal with aircraft carriers, mere discovery is not enough As a technician in the aerospace field, Li Lianheng does not have a deep understanding of the navy. At most, it can only be regarded as hearing some general information. For example, the U.S. Navy has a total of 12 aircraft carriers. a lot of. In terms of quantity, it occupies more than half of the world. Not to mention the tonnage. But to be honest, just a number does not bring a strong intuitive feeling. But now. Seven of them were concentrated in two sea areas. Especially the three ships in the Eastern Mediterranean were photographed simultaneously by Ocean One during the formation. As for the surrounding "small boats" such as cruisers and destroyers, although they cannot be clearly seen due to the resolution, the wakes left after sailing are still vaguely discernible. He counted briefly. All together, there are at least 20 ships. Even looking at it from a satellite perspective made Li Lianheng feel a little numb. After calming down a little, the first thought that popped out of his mind was - "Are the Americans trying to cause trouble in the Balkans again?" Li Lianheng subconsciously exclaimed. This judgment is quite logical for non-professionals. After all, it was only three years ago that the US military suffered its first major loss in the post-Cold War era in the Balkans. Not only did the Allied operations fail to achieve their goals, the stealth aircraft they relied on for deterrence were also defeated twice in a row. The second time, even the pilot was arrested. Black Hawk Down in Mogadishu was nothing in comparison. Now, it seems to be a very reasonable speculation that the US military, which has regained its confidence through the Aiwuhan War, wants to regain its position. However, He Mingkun obviously does not agree with this judgment: "But there are four more ships in the Indian Ocean?" Li Lianheng hesitated for a moment: "The positions of the four ships are actually very far apart...one is in the north, two are in the east, and one has just entered the Indian Ocean from the Atlantic Ocean..." Although an explanation was given, the tone was obviously not as firm as before. But He Mingkun felt a little persuaded... In short, the two of them remained speechless, each lost in thought. Fortunately, within a few minutes, an officer in navy uniform strode in. He even forgot to knock on the door. "Mr. Li, Director He." He took off his military cap and tucked it under his arm, and said hello to the two of them: "I just received a report that Haiyang 1 captured multiple targets that were suspected to be aircraft carriers at the same time?" The person who came here was Meng Dongchao, a liaison representative stationed at the National Remote Sensing Center by the Naval Staff. After all, Haiyang One still wears a civilian guise, and the focus is still on data accumulation and technical testing. Therefore, the Navy finally decided not to be responsible for the operation personally, and only sent a liaison office to be stationed here to be responsible for regularly summarizing and reporting the remote sensing situation. . "That''s right, this is a satellite picture, please take a look at it, Staff Meng." Li Lianheng raised his head and handed several reports to the other party: "After excluding duplicate signals, based on different positions and headings, we should be able to identify seven ships, three in the Mediterranean and four in the Indian Ocean." As for the rest lets leave it to your professionals to judge! Originally, Li Lianheng thought that today''s affairs should be over here. As usual, the report is submitted to the Naval Staff Department, analyzed, and finally fed back. This process takes about one day After all, it is mainly about research, and there is no need to pursue timeliness. And in fact, most of the photos in the current report were taken 18-24 hours ago. In this case, whether the reaction speed on the ground is faster or slower, it will not have much impact. No way, just a single satellite. There is no way to ask for more. As a result, as soon as Li Lianheng finished speaking, Meng Dongchao''s eyes suddenly flashed with light. "Seven ships?" The latter quickly took the report and read through it one by one quickly. Then, it seemed to get even more exciting... "Seven ships...we were really left to find them!" As he spoke, he raised his hand and flicked the report, making a crisp "pop" sound. The other party''s reaction surprised Li Lianheng and Meng Dongchao. Rather than shocked, it''s more like... The speculations that had been made before have finally been verified. "Commander Meng, did you... already know that the Americans had dispatched these aircraft carriers?" Li Lianheng asked in a somewhat uncertain tone. Meng Dongchao put down the materials in his hands, but he couldn''t suppress the raised corners of his mouth: "It''s not that early." He explained: "At the end of last month, superior units reported here that US military combat ships were gathering in the Mediterranean and Indian Ocean areas. Let us pay attention to the recent remote sensing results of Haiyang-1... But I am worried about the comrades at the space port. It brought unnecessary pressure, so I never said anything. "Unexpectedly, less than a week later, the results have already come out..." At this time, Li Lianheng''s curiosity was also aroused. He thought about it and felt that since the matter had nothing to do with our army, it probably wasn''t anything particularly sensitive: So, he expressed his speculation just now: "The Americans won''t want to cause trouble in the Balkans again, right?" Unexpectedly, Meng Dongchao was immediately stunned: "Balkans?" Then he suddenly realized it and replied with a smile: "Although the Eastern Mediterranean is indeed very lively, it has nothing to do with the Balkans." "The Americans'' target this time is still the Middle East..." As he spoke, he looked around, then stood up and strode to the map hanging on the wall: "You see, attacks are launched from the sea in two directions: west and south. Although the northeast is inland, the US military has two air force bases in Kyrgyzstan and Uzbekistan. This will form a three-sided attack, plus the ground troops on standby. The situation is even clearer than before Desert Storm..." When Meng Dongchao mentioned "Desert Storm", even those who were slow to react should know what it meant. "But... wasn''t it already fought again in 1991?" Li Lianheng''s tone was full of confusion: "Why do you have to fight again?" He just thought about the Balkans, and he did have a certain mindset: "Moreover, the United Nations has not approved it..." At this point, Li Lianheng''s voice stopped abruptly. The lack of approval by the United Nations does not seem to be a big deal to Americans. Or rather, there are very few cases where approval is obtained like Aiwuhan''s... "What about this...don''t talk to me, even my superiors haven''t figured it out." Meng Dongchao shook his head helplessly: "Even several NATO countries, including France, clearly expressed their opposition last month, but the Americans still have not slowed down their preparations for war." "In the images taken by Ocean 1, the three ships in the Mediterranean are the Roosevelt, Washington and Truman, the three ships in the northern Indian Ocean are the Kitty Hawk, the Constellation and the Lincoln, and the last one that just entered the Indian Ocean should be Its the Nimitz With this familiar look, Li Lianheng suddenly felt a little frustrated: "So... even if there was no Ocean One, you would already know the movements of these seven aircraft carriers?" And Meng Dongchao quickly heard the disappointment in his tone. "For such a conspicuous thing as an aircraft carrier, even if the mission itself can be kept secret, there are often thousands of people on board, and they always gather around the port before going to sea. The general movements cannot be concealed from anyone." "But once they leave the port, if satellites don''t provide timely information, we may have to wait another half a month...or even longer to know exactly where they are and in which sea area they are operating." "Imagine, if their target this time is not the northern Indian Ocean, but the western Pacific, then the time bought for us will be very precious..." After some consolation, Meng Dongchao, who was still excited, looked over the satellite images in his hand twice, then stood up and prepared to leave - As a liaison representative, he certainly didn''t just hand these things over to his superiors as they were. A complete report containing situation analysis and forecasts is also produced. As a result, he was stopped by Li Lianheng "Wait a minute...there''s some more here." The latter gestured to the information box on the table: "Although these are judged to be duplicates, we might be able to analyze some useful things. You can take them back with you..." Li Lianheng stared at Meng Dongchao''s hurriedly leaving figure, and fell into deep thought for a long time. Until he was awakened by He Mingkun''s voice. "Mr. Li, do you think...there are still problems with the satellite remote sensing report just now?" "Oh, that''s not true." Li Lianheng waved his hand: "I was just thinking about the last words that Staff Officer Meng just said." "If the target of these seven aircraft carriers is us, then even if we discover the other party''s intentions in advance, what kind of response can we make..." He Mingkun obviously didn''t expect the answer to be like this, but he had to deal with the topic he caused, so he could only guess at random: "This... I''m afraid we can only deploy defenses in key directions in advance, just like in previous years?" "That''s still too passive after all..." Li Lianheng had some vague thoughts in his mind, but he was an amateur after all, and in the end he failed to grasp the key point, so he sighed and decided not to dwell on it any more: "Forget it... let the people who specialize in weapons deal with the headache..." (End of chapter) Chapter 1052 Now it’s a real battle test Chapter 1052 This is the real battle test The other side. Of course, Chang Haonan didn''t know that Ocean One had already captured some incredible things. After all, although he is the person in charge of the satellite software part, he has no direct relationship with the operation and use of the satellite. Including subsequent satellite-related equipment tests, they are still being carried out on the ground - In fact, the reason why he joined the Air Police 2000 project was because he wanted to test the principles and technologies of the low-orbit communication satellite network. It''s just like many projects he has participated in in the past. As I kept doing it, the side tasks became the main line. In addition, according to regulations, sensitive images captured by Ocean One cannot be copied and disseminated at will. Therefore, under normal circumstances, the space agency regularly sends a copy of the sorted and refined situation to the aerospace power group. Since Chang Haonan himself was not in the capital, he naturally couldn''t see it. However, this is not very important. Because he had already anticipated the US military''s "shock and awe" operation in 2003. On the one hand, it is the innate foresight of the reborn person. On the other hand, it is also more important. As early as 2001, Lao Wu made it clear that the Americans were probably preparing to do big things in the Kurdish region. That was even before the attacks in September. With the two facts confirmed, the conclusion is self-evident. As for Chang Haonans attitude He wasn''t going to do anything. Compared to Aiwuhan, which was closer to an accident and even had to borrow passage from China and Russia before the war, the Americans'' layout in the Mesopotamia is much more complete. Moreover, the huge benefits hidden in the areas around the Persian Gulf are not comparable to those in the poor ravines of Central Asia where food cannot be grown. There, for the first time, the U.S. military will experience the pleasure of being a warlord with soldiers, food, and money, and will be out of control on Fela''s unbearable road. Therefore, it is definitely a great thing for China. Of course, this is also for image reasons - Chang Haonan has always felt that superior leaders, especially military leaders, misunderstood him too deeply. The source of this is probably that during the Allied Forces operation, General Zhang thought that the precise "accidental bombing" was calculated by him in advance. At that time, Chang Haonan felt that it was too troublesome to explain, and it involved too many technical details that were difficult to understand, so he did not explain it. Unexpectedly, in 2001, someone picked up the matter again, and based on this, they suspected that he was also behind the shocking attack in September. This hat is a bit scary. So that time, Chang Haonan spent a lot of time saying that these two things had nothing to do with him. It''s all accidental. It''s a coincidence. But the consequences of not refuting the rumors at the first opportunity soon became apparent. The effect of explanation can only be said to be better than nothing. Everyone thought he was a bit humble. And if the upcoming deterrence operation in 2003 can still be related to Chang Haonan... Then even if he jumped into the Yellow River, he wouldn''t be able to clean himself. And this is also regular. Once every two years, the performance is quite stable, right? Therefore, in the recent period, Chang Haonan has been following the plan, working with technicians from the 14th Institute of Electrical Engineering and Haofei Group to continue testing various airborne equipment of the Air Police 2000. If nothing unexpected happens, he will spend the entire March and even the entire first half of 2003 in a low-key manner. However Backfired. Sometimes, even if a person avoids something, the thing will find him... March 15th. Prototype No. 2000-01, which had just completed system upgrade, took off from Yanliang Airport as usual and headed to the predetermined airspace in the northwest to perform a test mission At present, every fighter plane capable of firing missiles is a valuable asset of the aviation force. Naturally, it is impossible for those dozen aircraft to stay in Haojing to accompany the prince to study. Most of them transitioned at the speed of light after the test was successful. Only one J-10AS and one J-11BS that were originally in Yanliang were left. However, these two aircraft themselves also have other subjects that need to be tested, and they are not specifically designed to serve the Air Police 2000. However, a living person cannot be choked to death by urinating. Chang Haonan set up some ground stations with the simplest signal response function in a relatively remote place in the northwest. Used to simulate other nodes in the system. The effect is definitely far inferior to that of a real airplane. But it is still enough for some non-critical subjects. Just like today In this upgrade, the maximum number of nodes included in the command system has just been increased from 20 to 50. Therefore, today''s test is mainly to determine whether the system can handle so many response signals at the same time. As for the carrier aircraft itself, it also happened to take advantage of the opportunity to travel to the target airspace in Xinjiang Province to test its long-distance flight capabilities. Technically speaking, it''s not a complicated subject Check status, start engines, taxi, take off, climb... Everything was unfolding step by step as usual. If there is any difference, it is that the waiting time is particularly long. After all, after converting most of the luggage compartment into fuel tanks, the available range of the Air Police 2000 even exceeded the 8,000 mark. Long-distance flight tests are difficult to complete without seven or eight hours. About three hours later, Captain Lin Hais voice finally came over the radio: "Unit No. 01 reports that it has entered the scheduled airspace, the flight is in good condition, and the airborne equipment has been checked correctly. Request to start testing!" There is a little more noise than before. But considering that the number of relays is almost twice as high as before, it seems normal. Chang Haonan looked at the time and then replied: "The test can begin, please note that the target aircraft will take off in 10 minutes." In 2003, the average annual flying time of Air Force pilots was only fifty or sixty hours. This is still driven up by key areas in the east and southeast. Specifically for the inland areas of the central and western regions, it is even lower. Therefore, it is not always possible to coordinate a real aircraft as a test target. After receiving the news from Chang Haonan, Lin Hai immediately switched the radio to the in-camera channel: "Prepare to turn on the radar and command system, and adjust the C-band array to the 110 direction." As his order was issued, the huge disc-shaped radome on the back of the aircraft slowly rotated. The other test pilot in the co-pilot position used a camera installed on the back of the aircraft to observe the entire process on the multi-function display - The camera was installed during the first flight to observe the vibration of the radome. Later, I found that the effect was very good and did not affect the flight, so it was never removed. "Although it''s not the first time I''ve seen it... it still feels spectacular." The first officer said with some emotion: "If it could be seen from the outside, I''m afraid the effect would be better." "I heard that when the command system was tested for the first time, the weapons control officer of a two-seat aircraft took photos. I don''t know if that''s true." The flight engineer, who was sitting slightly back, said next. This part of the test has little to do with the person in charge of flying them, so the atmosphere in the cockpit is relatively relaxed. At this time, the intercom rang again: "Report, the radar was successfully activated and has not been found yet..." The target is not expected to take off until 10 minutes, and there are not many civilian aircraft in the northwest airspace, so it is normal for the radar to not see anything. This time, however, the radar operator''s report came to an abrupt end. About half a second later, just when Lin Hai was about to ask if something happened, the other party''s voice sounded again: "Report, a large number of low-altitude targets were found in the 300 direction and 550 kilometers away!" This sentence almost made everyone on the plane a little unresponsive. The first officer subconsciously raised his head and looked to the left. Now the C-band array of the early warning aircraft is aimed at the 110 direction in the southeast, so the 300 direction is... "What is the detection range of L-band radar?" As he spoke, he had switched the image on the multi-function display from the external camera to the shared radar image. Sure enough, almost at the edge of the L-band radar detection, a large area of ??dense echo signals appeared. Although it''s a bit blurry, the exact amount can''t be discerned. But definitely a lot. "550 kilometers...this is already outside the country." The flight engineer also followed suit and judged: "Probably in... Kyrgyz territory." Kyrgyzstan Lin Hai realized the seriousness of the problem in an instant. Kyrgyzstan does not have a large-scale air force. There are not many civil aviation aircraft taking off and landing in such a small country with a backward economy and a sparse population. Therefore, we have to talk about "large-volume" and "low-altitude" targets. Then there is only one possibility. U.S. Air Force at Manas Base. The atmosphere in the cockpit, which had been peaceful and peaceful just a few seconds ago, suddenly became tense. Lin Hai switched the radio to the HF band as quickly as possible in his life. "Reporting that our aircraft found a large number of..." in Kyrgyzstan in the 300 direction and 550 kilometers away. But before he could finish his report, he was interrupted by Chang Haonan on the other side: "We saw it." At this time, Lin Hai remembered that he had just ordered to open the data link and command system. In other words, the ground can see the radar detection results of the early warning aircraft in almost real time. This gave him a little relief In this case, the situation must have been reported. And listening to Mr. Chang''s tone, he didn''t seem very surprised. Sure enough, after a short period of silence, Chang Haonan''s voice came again: "Don''t be too nervous. The situation has been reported to the Jincheng Military Region and they have received it." "And... the problem won''t be too big. Just treat it as a training with a relatively high degree of actual combat..." On the other side of the radio, Chang Haonan was staring helplessly at the laptop in front of him. At this moment, there was only one sentence echoing in his mind: Its over, it cant be cleaned completely. The Americans want to cause trouble in the Mesopotamia. This is something everyone understands. But when exactly it will start, few people can guess. After all, it is March 15th. The ultimatum has not been given yet. Everything still seems to be redeemable. But Chang Haonan knew that if no major changes occurred, the deterrence operation would officially begin on March 20. As for himself, he once again "predicted" everything accurately less than a week before the incident happened. Chang Wei, you still said you dont know martial arts? .jpg However, Liang Shaoxiu next to him was still a little worried: "Mr. Chang, could it be that the Americans are taking risks and want to make a sneak attack..." This conjecture is a bit unrealistic, but it is indeed something that many people were widely worried about at the beginning of the 21st century until around 2010. "Won''t" Chang Haonan waved his hand helplessly. "Uh... why?" Liang Shaoxiu''s in-depth questioning made him roll his eyes and said to himself, I can''t tell you that in two days the US military will launch a large-scale military operation, and the Central Command responsible for West and Central Asia will temporarily move to Kyrgyzstan. , so a large number of planes are taking off and landing, right? So Chang Haonan had no choice but to organize his language and then replied: "Even L-band radar is unlikely to see a target the size of a fighter jet at a low altitude 550 kilometers away." "So these things must be transport planes or passenger planes, transporting logistical supplies to the US military in Kyrgyzstan..." The explanation was reasonable and well-founded. Liang Shaoxiu thought for a moment and did not continue to dwell on the issue just now. He just touched his chin, looked at the screen and muttered in a low voice: "But...if it''s a transport plane, that''s a bit too much, right?" This time. Chang Haonan did not answer... (End of chapter) Chapter 1053 New AWACS platform? Chapter 1053. New early warning aircraft platform? What Chang Haonan was most worried about did not happen. After all, this time, the American''s forward swing was too long. After the flight test institute reported the emergency air situation discovered accidentally, the final feedback received was to require the Air Police 2000 to continue testing without disrupting the plan due to the activities of overseas air targets. It is obvious that although there is currently no dedicated "hotline" across the Pacific, there is still some basic mechanism to prevent miscalculation between major powers. In other words, when the U.S. military conducts large-scale operations in the hinterland of Central Asia, the top leaders of major surrounding countries should have been notified in advance. However, the superiors did not expect that the Air Police 2000 could capture the low-altitude activities of large targets 500 kilometers away, so they did not notify the flight test institute of the relevant information. It was only at this time that Chang Haonan learned that Haiyang 1 had captured the approximate location of the US fleet more than a dozen times in the past half month. There are as many as seven aircraft carriers involved. Although due to the insufficient number of networks, the timeliness of each positioning is basically at the 1-2 day level, which obviously cannot be used for the mid-stage guidance he envisioned. However, for the Chinese military, which in the past could only rely on unreliable means such as public reports and AIS information monitoring, it is enough to be ecstatic to be able to locate the opponent''s approximate coordinates completely through independent and controllable means. After all, even if the fleet is free to run, it will only cover about 1,000 kilometers a day. Today''s reconnaissance timeliness of 1-2 days can at least completely eliminate the possibility of the enemy using fake AIS signals to attack the east and west. In short, with the advancement of technological means and the improvement of China''s international status, there are fewer and fewer cases where it is necessary to rely on a single source of information to judge the direction of the situation. As for what happened next, it was almost the same as the previous timeline... March 17th. Although it failed to obtain Security Council permission due to two votes against and one abstention among the five permanent members, the United States still issued an ultimatum in the name of "checking the abuse of chemical weapons." By this time, even ordinary people can see it. War is unavoidable. Sure enough, it was three days later. March 20th. Operation "shock and awe" has officially begun. In terms of scale, this is undoubtedly the largest military operation since the end of the Cold War. However, since the defenders gave up most of their resistance almost from the beginning, the whole process was more like a march than an attack. Still marching along the highway. Completely lackluster militarily. Even so, there is still a serious disconnect between the northern and southern coalition forces, which is surprising... However, the military belongs to the military, and technology belongs to technology. Compared with Operation Desert Storm 12 years ago, as well as the relatively small-scale Operation Allied Forces and Operation Enduring Freedom, the U.S. military in this war has indeed demonstrated commendable joint command capabilities. Not to mention anything else, during Operation Shock and Awe, the proportion of precision-guided munitions used by the coalition air force was ten times greater than that of Desert Storm, but the reaction time was shortened to one-tenth. Moreover, the frequency of accidentally hitting friendly forces is also greatly reduced. All this is largely due to the as many as 50 early warning and command aircraft of various types, with nearly a hundred flights per day, ensuring the smooth flow of intelligence acquisition and command links across the entire battlefield. Therefore, it has also become an area of ??focus for Chang Haonan and others... "Mr. Chang, it seems that the 200 nodes we have reserved in the command system...not to mention meeting the needs of the three armed forces in the future, even just meeting the needs of the Air Force, may not be enough..." One day during his lunch break, Guo Lin sighed while flipping through the report in his hand. "In terms of information warfare, we do still have a lot of room for improvement, but don''t be scared by American propaganda." Chang Haonan put down the cup in his hand, raised his head and replied: "Firstly, with the improvement of communication hardware level, the scale of the command network can be further expanded in the future. Secondly..." He stood up and came to the blackboard, and casually drew several connected circles: "Don''t forget, every node in our self-organizing network is a centerless node with equal status. In addition to the receiving and responding functions of ordinary terminals, it also has complete message forwarding capabilities." "Such a node setting is mainly aimed at a more flexible, smaller and more sophisticated combat style in the future. It is believed that even combat units have certain reconnaissance, surveillance and intelligence collection capabilities. In other words, they themselves are advanced in a centralized communication network. node." Having said this, he then drew more solid dots: "If we really need to command hundreds, thousands, or even more units to fight at the same time, then we can completely let a node in the self-organizing network command more ordinary nodes through the traditional communication network, even if it is just according to 1: The ratio calculation of 20 can also be expanded to more than 4,000..." When Chang Haonan mentioned a number like 4,000, Guo Lin''s hand holding the report trembled slightly: "4000... If it were placed on the ground in a regiment-level battlefield, wouldn''t every ordinary soldier be included in the command node?" As a technician at the Electronic Technology Group, he usually faces a variety of parties, so his thinking is broader than that of his colleagues in the aviation industry who stare at airplanes every day. When Chang Haonan heard this, he suddenly couldn''t help laughing. Mainly because he remembered a joke he heard during the PLA military reform in his previous life - Synthesize the spirit to synthesize the soul, synthesize the squad leader to synthesize the human... If the informatization level is decentralized to the end, then we can only rely on individual informatization soldiers. "Ahemthe long-term goal is indeed like this." Looking at the confused Guo Lin, Chang Haonan coughed twice and quickly returned to the topic: "Furthermore, the application of information technology does not have to be limited to the battlefield. Just like the 4,000 nodes mentioned just now, even for a factory, as long as it is not a particularly complex type, it is enough to control each operating node in a refined manner. " "Such a factory...doesn''t it mean we don''t need people at all?" Guo Lin''s eyes widened slightly. "That''s the theory..." Chang Haonan nodded. Before his rebirth, the black light factory was actually not a particularly rare thing. But for people in the early 21st century, it sounds somewhat dreamy. And if you imagine that the empty factory is still busy maintaining production... He seemed to be a little scared. Therefore, Chang Haonan decided to return to reality first: "Of course, these are things at the level of communication principles. Even if the construction is completed, if you really want to implement it, you still have to provide hardware-level guarantees." "No matter how advanced the theory is, if there are no aircraft equipped with data links or communication satellites with sufficient bandwidth, it will only be a fool''s errand..." However, Guo Lin seemed to be still immersed in his imagination about the unmanned factory and did not react immediately. It wasn''t until a few seconds later that he took a deep breath and nodded: "Indeed... just like the Americans this time, they actually dispatched more than 40 early warning aircraft to achieve such a command effect..." As he spoke, he turned to look at the Air Police 2000 prototype that was undergoing routine maintenance in the assembly workshop. Although the mass-produced aircraft carrier platform will be made domestically, the cost is still a bit too high for the People''s Liberation Army, which has all the services and arms clamoring for replacement. Many times, quantity itself is also a kind of quality. "Not all Americans use E3, half of them are relatively small E2C..." Chang Haonan sat back on the chair: "Everyone''s thinking is actually similar, both high and low. However, the scale of the U.S. carrier aviation force is large enough, so all the ''low'' parts can be handed over to the Navy''s E2C, while the Air Force only needs to operate the strategic-level E3. It looks much simpler, and we cannot have such a large-scale carrier-based aircraft in a short time, so the Air Force needs to equip both high and low models at the same time..." These words seemed to comfort Guo Lin. Because even the relatively low-level Air Police 200 has a relatively small amount of equipment in China Up to now, including the prototype that was later converted into a mass-produced aircraft, it was only one for the naval aviation and one for the air force. Moreover, after the initial period of surprise, the subsequent purchasing desire shown by the two military services was not very strong. This is not just a matter of cost. In fact, neither Party A, who is the user, nor Chang Haonan, who made the overall design of the aircraft, are very satisfied with the Air Police 200. The main reason is that the carrier aircraft is not satisfied. Although the safety of the Y8 III platform has been greatly improved, apart from the localization rate, there are really no other advantages. For users, slow speed, short range, and poor comfort... Moreover, as a planned "light" early warning aircraft, the 60-ton aircraft is actually not very light. Even the size of the ground support units required to serve it is larger than that of the Air Police 2000, which uses a passenger aircraft platform. There is also one more crew member. There is really nothing to reason about. At that time, it was to solve the problem of whether or not, and after the ring project was put forward, it gave China a sigh of relief, so it became popular for a time. As the Air Police 2000 project progressed, the essence of Mrs. Niu was quickly restored in contrast. For Chang Haonan, as the 14 institutes'' verification of the principle of optically controlled phased array radar becomes more and more in-depth, he becomes more and more eager to find users in the international market to serve as guinea pigs. Especially after this deterrent operation, I am afraid that countries'' understanding and demand for early warning aircraft will be even higher. It is definitely a market with considerable potential. Although we considered learning from David''s Falcon system and flexibly matching carrier aircraft by selling only airborne equipment, this was obviously a no-brainer. Making more platform money is the next best thing. The main reason is that the structures and aerodynamic characteristics of different carrier aircraft are hugely different. If each order is customized, the production cost and delivery cycle will be greatly increased, which is also not conducive to competition in the international market... Chang Haonan rubbed his forehead in distress, preparing to put this problem aside and take a lunch break first. However, just at this moment. A bold idea suddenly appeared in Chang Haonan''s mind... (End of chapter) Chapter 1054 An epoch-making product Chapter 1054: An epoch-making product In fact, what has always troubled Chang Haonan is that the pedigree of domestic aircraft is too incomplete. Apart from the C909 and Y-8, the only ones that can barely function as aerial platforms are the MA-60 and the C808. The former seems to be similar to the E2C platform at first glance, but in fact it is larger than the E2C and cannot be put on the ship at all. As a purely land-based platform... It only has a range of 2,000 kilometers, and with a big antenna on its back, there is no oversized luggage compartment that can be converted into a fuel tank like a serious passenger aircraft... That performance is really too abstract. The latter, like the Yun 8, is essentially more suitable as a one-size-fits-all medium-sized platform, rather than the lower end of a high-low mix. For example, the C808 has been selected from the beginning for the anti-submarine patrol aircraft and electronic reconnaissance/electronic jammer aircraft currently under development. However, just now, he discovered that he seemed to have entered a misunderstanding. Because the early warning aircraft platform was first planned in 1998, so naturally at that time, only these models that were or were about to be produced in China were considered. Later, although Chang Haonan had several contacts with the early warning aircraft project, he either thought of new radar technology or simply tested software or algorithms. In short, it has nothing to do with the aircraft itself. Therefore, we have not systematically reconsidered this matter. But today, Chang Haonan took advantage of the topic raised by Guo Lin and thought about it carefully, and suddenly realized that the situation had changed dramatically compared to five years ago. This change is not only reflected in technology, but also in the external environment - In the past, we lacked core technology, so we were afraid of being unilaterally cut off. But now Think about the NH90 helicopter Think of the M88-3 engine. Think again about the Trent 900 Let me say it again, who is afraid of cutting off the confession? China''s competitiveness in the world''s industrial chain is no longer limited to its huge market potential and low supply costs. But it actually has core technologies that cannot be replaced. In this case, regardless of personal use models, at least for foreign trade products, you can think more broadly... Don''t say anything else. Dont the French want their own early warning aircraft? The Navy really has no choice but to purchase E2C because it has to consider shipboard. But when the Air Force chose E3F, there was still a lot of controversy. Except that the carrier platform has been replaced with a better-performing engine, this model is not fundamentally different from the E3A twenty years ago. The quotation was solidly close to US$500 million. After entering the new century, the French Air Force, which felt that the performance of the E3F was somewhat outdated, began to seek technological upgrades. As a result, he will be blackmailed a lot again. In addition, in terms of demand, with the scale and mission of the French Air Force, there is no need for a model the size of the E3A. Not only Chang Haonan thinks so, but even the French themselves think so. There has been constant talk about replacing the E3F with the Erieye. And they did exactly that before Chang Haonan was reborn. Since you can even buy Swedish products, if the Falcon Z is used as a carrier aircraft, it will be at least the same as the NH90, and it can be nominally regarded as France''s own production... As for the command system and data link, they were originally optional parts. Just go back and use your own and that''s it. Anyway, even the E3F is operated independently by the French Air Force and is not connected to NATO''s common command system... Not only that, you can also get some advantages when selling to third countries. At least it won''t suffer because there are fewer users of Chinese fighter jets. Thinking of this, Chang Haonan, who was a little drowsy just now, stopped feeling sleepy instantly. At this moment, Liu Yongquan is tracking the testing of the SeA650 engine in France. It just allows him to test the other party''s attitude. After all, the overall design of Falcon Z still belongs to Dassault. And if you want to modify a special aircraft based on it, it is obviously a big trouble without the original design plan... A few days later, France. The cloud of war hanging over the Middle East has had almost no impact on Europe. At least not yet. In fact, because no troops were sent to participate in the deterrence operation, the French people generally just watched the fun. Normal production and life have not been affected. Of course, old Europe. The so-called "normal" production and life may not actually be normal... For example, the Falcon Z prototype was originally scheduled to fly for the first time in January 2003. Although everything seemed to be normal, it was still delayed for nearly a month without realizing it. Fortunately, preparations on the ground were sufficient, and the SeA650 itself is a relatively mature design, and the French are experienced in passenger aircraft test flights, so after entering the test flight stage, there were no other mishaps. By late March, all basic subjects will have been completed and the gradual transition to the next stage will begin. That is to say, the performance involves Falcon Zs commercial selling point. There are mainly three parts. Speed, range, and cabin quietness. In addition to safety, these are the most important properties of a business jet. Quietness can be tested throughout the flight test and does not need to be conducted as a separate subject. For the sake of ensuring test efficiency, the voyage must be arranged at a relatively later stage. After all, more than 12,000km is enough to fly directly from London to Beijing. It could even be included in the trial run as part of a publicity stunt. Just like the aviation industry in the 1920s and 1930s was keen on crossing the Atlantic in various ways. Therefore, the core subject at the current stage is still the maximum flight speed. Especially for the new wing designed by China, in the previous ground flutter test, the maximum allowable speed reached an astonishing Mach 0.990. It is even higher than the design indicators initially presented. Of course, this number is already the maximum that the aircraft structure can withstand, which means that it will break immediately no matter how fast it is. It does not mean that the aircraft can really fly levelly at Mach 0.99. This speed is not even touched during test flights. Dassault is not Boeing, so it cannot really use its test pilots as consumables. But for a model that uses high speed as its selling point, it never hurts to leave some extra safety redundancy... "Charles, we checked the flight parameter recording equipment and determined that during this test flight, the aircraft reached and maintained an airspeed of Mach 0.92 in level flight." In a hangar at Merignac Airport, flight test director Rob Boudin emerged from the cabin of the Falcon 8Z and reported loudly to Charles Edelsteiner who was checking the cabin noise record data not far away. . As he spoke, he strode to the test workbench, put the recording device in his hand on the table, wiped the sweat from his forehead and continued: "I have to say that the most wonderful design of this aircraft is neither the speed nor the noise, but the cross-sectional area of ??the cabin... I can finally stand up straight in a business jet, without having to bend over and walk like a dog hole... " "Thanks to Snecma...er...in short, thanks to the two new engines with sufficient thrust, the Falcon Z''s cabin cross-sectional height is 8 centimeters larger than the average for models of the same class." "Although this number may not look very impressive, but for passengers of average height, it is just the critical point of being able to stand up straight..." As Ed Steiner spoke, he raised his head and looked at the recorder in Robb''s hand with complicated eyes - Mach 0.92 is actually the pie drawn by Falcon Z during the early promotion process. Also because it is a pie, it was not marked at the beginning whether it was air speed or ground speed. His original idea was to find a tailwind and let the aircraft''s GPS speed (that is, ground speed) exceed Mach 0.93 at the altitude at that time. If that doesn''t work, you can still do a shallow dive. In short, Spring and Autumn Brushwork is full of charm, as long as it can avoid accusations of false propaganda, it will be fine. This is also something of an open secret in the industry. Rich people usually think that their time is valuable, so they eat this kind of propaganda. But in reality, no one really cares about those 10 or 15 minutes. However. Who admits it. His intentions were bad, but he carried them out well. After switching to a lower-drag wing, the aircraft actually reached an airspeed of Mach 0.92 in level flight... This is great. Falcon 8Z has a total of three main selling points. High speed. It relies on low-drag wings designed by others. Big voyage. It relies on a low fuel consumption engine designed by others. Quietness. It relies on soundproof nacelles and active noise reduction systems designed by others. Although the overall design of the aircraft was still led by Dassault. But Ed Steiner felt something was wrong. Falcon 8Z is an epoch-making product in the field of business jets. But if you take a closer look, you will find that the times are marked by others? (End of chapter) Chapter 1055 Business jets for military use? Chapter 1055: Are business jets used for military purposes? However, Robb Boudin apparently didn''t notice Ed Steiner''s emo. For him, who is only responsible for test flight missions, his life-long interest is focused on exploring the performance limits of a model, and he is not very willing to care about the entanglements of interests in the research and development process. Therefore, after a brief pause, he continued: "In fact, as far as my personal feeling is concerned, this aircraft is far from reaching its limit. If a shallow dive is carried out during the test flight according to the original plan, it should be able to break through to a higher speed..." Robb said, stretching out his hand and making a downward diving motion in mid-air. This somewhat crazy proposal made Ed Steiner tremble with fear, and he said in his heart that you guys who are doing test flights are really not afraid of death - He did initially think about making a shallow dive as a disadvantage, but that was because according to estimates at the time, the Falcon 8Z was too large and had a thick fuselage. The maximum airspeed and Mach number in level flight were 0.9 cant even be reached. In this case, if you take advantage of the tailwind and engage in shallow dive acceleration, the risk is still within the controllable range. But now, the actual flight result is almost 40km/h faster than the original calculation. Don''t look at it. This number is not too high in proportion, not even a 5% deviation. But this is the transonic range. It is no exaggeration to say that every 1km/h speed change will have unpredictable effects on airflow and structure. Unpredictable, at least for Ed Steiner. It would be fine if it kept flying level. After all, there is no longitudinal overload. Even if the speed is found to enter the danger zone, gentle deceleration can be achieved by simply closing the throttle slowly. At least there won''t be any big problems like machine destruction and human death. But if it enters a dive state, it will be difficult to tell when it needs to level out. In the event of rudder locking or even the wing breaking off... Ed Steiner felt a chill running down his spine just after thinking in this direction for a moment. If nothing else, Falcon Z will be the last important project he is responsible for in his career. Now that the pie that was drawn back then has now come full circle, the remaining task is to ensure that the model can be launched smoothly and achieve commercial success. His old man is too old to do risky things. "It''s still unnecessary." Ed Steiner decisively refused: "The maximum speed and minimum speed tests are both up to standard. Now that the design indicator of 0.92 has been exceeded, the focus of subsequent tests should turn to the allowable envelope range at this speed, rather than blindly continuing to accelerate." "Furthermore, according to our flight control program settings, no matter if the aircraft''s airspeed exceeds Mach 0.9 under any circumstances, it will sound an alarm and automatically enter the deceleration program." While talking, he connected the data recorder that Robb had just brought over to the special reading device, preparing to confirm the test flight data himself, and then cut out a more eye-catching section from it to use as promotional materials. "Um?" Robb couldn''t help but be stunned: "Is there such a restriction?" "Well... I specially added it after learning from some typical air crashes that happened in the past." Ed Steiner''s answer was somewhat ambiguous, and he obviously didn''t want to continue to dwell on this topic: "Of course it was not installed during the test flight. You test pilots definitely don''t need these... But it''s hard to say for commercial airline pilots... Including the dive you just mentioned, in the future, large-angle climbs and dives may also be restricted from the flight control level. action." Robb next to him suddenly showed a look of realization. Everyone is in the same circle. Speaking of which, no one can guess the reason. "Anyway, remember to make arrangements as soon as possible..." Just when Ed Steiner was about to end the conversation, another voice came from behind: "Actually, Charles, based on our analysis of the engine operating data during this test flight, the SeA650 has the potential to further increase thrust..." The two turned around and saw Ian Vista coming out of a small cubicle next to them. "Of course I know that." Ed Steiner had a matter-of-fact expression: "But the Falcon 8Z is already the largest model in the entire series. Even if an aircraft engine with greater thrust is redesigned, I am afraid it can only be used by regional airliners..." Obviously, he would be mistaken. I thought the other party was saying that based on the same core machine, products with a higher thrust level could be designed. This is indeed a reasonable thing. After all, SeA650 can essentially be regarded as a non-afterburning model with a small bypass ratio. Even if nothing else is changed, just replacing a larger fan can increase the thrust to 9-10 tons. It''s just that there is no suitable installation target. But Vesta shook his head: "It''s not a redesign... I mean, judging from the performance, the SeA650 itself can also squeeze out some extra thrust, but it is currently limited by the engine control program." "Of course, what I see here can only be regarded as some superficial appearance. For specific situations, I still need to seek the opinions of China''s partners..." Ed Steiner couldn''t help but curl his lips, subconsciously wanting to complain about whether it was a bit inaccurate for the other party to call China a "partner". But as I spoke, I remembered the situation of Falcon 8Z, and felt that I didn''t have any position to criticize others. Finally he swallowed it. Robb next to him immediately began to look forward to the opportunity to further achieve higher level flight airspeed, but then he remembered that Ed Steiner had made it clear that there was no need for this, and for a moment he didn''t know what to say... The atmosphere between the three people actually fell silent... Fortunately, just when Vesta felt a little embarrassed for causing a cold scene, another figure appeared at the door of the hangar and walked in hastily. Said Cao Cao Cao Cao has arrived. It was Liu Yongquan who came to inspect the test flight on behalf of China. Vesta breathed a sigh of relief and rushed forward to ask about the feasibility of further increasing the thrust of the SeA650 engine. "Liu, take a look at this data." He thrust several charts into Liu Yongquan''s hands: "Even at the very edge of the flight envelope, the peak vibration data measured by the sensor is still only about three-quarters of the maximum allowable amount. If this is the case, why can''t a higher speed limit be opened at the control program level?" The latter came here this time because he received news from Chang Haonan and was going to discuss the feasibility of expanding the Falcon Z market with Ed Steiner. As a result, as soon as I walked in, I was asked a technical question. So much so that I was a little confused at first. It wasn''t until I took the chart and looked at it for a while that I finally came back to my senses. Immediately afterwards, he showed a slightly embarrassed expression Because this speed limit was specially added by Chang Haonan. Under normal operating conditions of the SeA650, because the rotor bearing at the No. 1 fulcrum is replaced with a non-contact magnetic bearing, the vibration situation has indeed improved. As Vesta said, the engine speed can be increased by another 5 %about. Considering that this is the first time that magnetic bearings have been put into practical use, in order to ensure foolproofness, backup rotor bearings and corresponding mechanical actuation systems are installed. And if the speed is further increased, the magnetic bearing does not matter, but this set of mechanical backup is likely to be unable to withstand it. But the fundamental reason for such a slightly awkward design is that Chang Haonan regarded SeA650 as a guinea pig for technical verification. How could he explain this to the other party? "Ahem" Liu Yongquan looked away with a guilty conscience. At the same time, his brain was spinning rapidly and he began to formulate words: "The design indicators of the SeA series engines are set based on the needs of Party A...that is, Dassault. When the performance is sufficient, the main purpose is to retain a larger safety margin. There is no need to pursue more extreme paper data... " Then he looked at Ed Steiner not far away: "Is that so, Doctor?" The latter was a little surprised to be cueed suddenly, but Liu Yongquan''s answer met his request of not wanting to cause any complications, so he nodded immediately; "That''s right." "In the just-completed test flight, the Falcon 8Z has already reached an airspeed of Mach 0.92. Further increasing the thrust will reduce the cost performance and have a negative impact on safety..." After a lot of hesitation, the two finally managed to deal with Vesta and Robb, who were obsessed with pursuing the ultimate. "call-" Ed Steiner sighed and shook his head helplessly: "How come these people who are engaged in aviation development have no concept of risk control in their minds..." After I finished speaking, I realized that the situation seemed not quite right, so I quickly made up my mind: "Oh...sorry, I''m not talking about you..." "It doesn''t matter" Liu Yongquan didn''t care about these minutiae. After confirming that there was no one else nearby, he quickly switched to the main topic of his trip: "Doctor, I came here specifically because I received a request from my superiors to ask if your company has any plans to enter the Falcon 8Z into the military market?" According to his thoughts, his hint was already very obvious. When business jets enter the military field, apart from changing them into special aircraft platforms, is there another way? It should be said that if Ed Steiner was from another company, there is a high probability that he would indeed understand what Liu Yongquan meant. However. He is from Dassault. Dassault, business jets, military. When these three keywords were put together, the other party''s sixty-year-old comrade''s train of thought was instantly diverted. "Military market?" Ed Steiner had a "You''re not kidding me" expression on his face: "Falcon 8Z does have the option of an all-weather optoelectronic system, but that''s..." Having said this, he subconsciously glanced in both directions, and then lowered his voice a bit: "That is to transfer the technology of the Damocles pod to you... No normal users will choose to install it... And in the 21st century, there will no longer be madmen who install two missiles on business jets for low-altitude penetration..." (End of chapter) Chapter 1056 Dassault’s thoughts Chapter 1056 Dassaults little thoughts Only then did Liu Yongquan realize that the brain waves of the two people were not on the same channel at all. What Ed Steiner was talking about happened during the Iran-Iraq War in the 1980s. At that time, both sides were engaged in a missile ship attack war, and both hoped to gain a war advantage by strangling the other party''s oil exports. But anyone who takes a look at the map will understand that in this struggle situation, the Persian state, which occupies almost the entire east coast of the Persian Gulf, has a huge advantage. They only need to deploy land-based anti-ship missiles or even shore artillery on the coast, which is enough to block the choke point of the Strait of Hormuz. The other side located in the deepest part of the bay needs to dispatch the air force to conduct a long-distance attack to achieve the same attack effect. Even though they have the support of the entire Western world, war resources, especially anti-ship missile carrier aircraft, are still stretched thin. Moreover, the main model used for ship attacks at that time was the Mirage F1. Each dispatch could only mount one Exocet missile on the belly of the aircraft. It often required a formation of two or even four aircraft to completely sink an oil tanker. And such a large-scale attack is easy to be detected, which in turn invites interception by the opponent... In short, in order to improve strike efficiency and concealment, they experimentally converted a Falcon 50 business jet into an anti-ship missile carrier aircraft. Not only does the bomb load double that of the Mirage F1, but the radar signal characteristics are also almost the same as a normal small passenger plane. Even if the other party is suspicious, they may not dare to fire on a suspected "civilian target." All in all, the plan seemed seamless. As for the results It has indeed achieved brilliant results. The problem is, it''s too brilliant. The first time the aircraft was dispatched, it launched two Exocet missiles at the USS Stark frigate that was escorting the Persian Gulf at the time, and both hit the target... It can only be said that American warships are more reliable than British warships after all. In addition, the krypton gold damage control during World War II has not yet expired. After taking two Exocet shots, it persisted in sinking, but in the end, 37 people died. The Stark Also suffered heavy losses. The whole process is full of all kinds of mistakes, which is indeed very effective. Liu Yongquan bit his tongue one last time to control himself from laughing. Really, I think of happy things. However, looking at Liu Yongquan who was hiding his face and suppressing a smile, Ed Steiner couldn''t stand it anymore and looked a little annoyed: "What''s so funny about this?" There are differing opinions on whether the attack was intentional. But there is no doubt that this incident gave the Falcon series business jets, which were still in their early stages of development, a good reputation. It''s just that it doesn''t necessarily have a good reputation The entire modification process was carried out by Dassault. The use of civilian aviation identities to cover military missions is a very sensitive topic in itself. That was back in the 1980s, when everyone was generally wild. It''s the 21st century now. If you continue to play this way, you will probably be drowned in saliva. Falcon 8Zs reputation is no longer needed. For Ed Steiner, this was, of course, an absolutely unacceptable result. "Uh...no, you misunderstood." Liu Yongquan gently pinched the side of his face to restore the stiff facial muscles to their original state: "My superior''s intention is to use Falcon 8Z as a platform to develop a series of special aircraft, such as... early warning aircraft." After a short pause, he continued to explain: "You know, although this deterrence operation did not encounter much resistance, it did cause some deterrence for many countries...especially those in the Gulf region." The coalition forces dispatched nearly 50 early warning aircraft to direct 2,000-3,000 combat sorties every day, shortening the detection-strike chain construction time from one and a half hours during Desert Storm to less than 20 minutes, and also significantly reduced the probability of accidental strikes. " "So after this war, the international community, especially some relatively wealthy small and medium-sized countries, is likely to start a wave of buying early warning aircraft. If we can seize this opportunity, it is a market with great potential..." Ed Steiner now realized that he had made a big mistake and scratched his head in embarrassment. Fortunately, the other party''s proposal was quite attractive, and his attention was quickly drawn to it. "Early warning aircraft..." He looked at the Falcon 8Z parked less than ten meters away and subconsciously blurted out: "Is it a little too small?" Falcon 8Z is actually the Z9 plan in the original Falcon project. It was only renamed 8Z considering that the number 9 is unlucky in some cultures. Although it is already the largest model in the model spectrum, it is still a business jet in the final analysis, not even a regional passenger jet. The maximum takeoff weight of less than 40 tons seems a bit unsatisfactory among today''s early warning aircraft. But as soon as the words came out of his mouth, Ed Steiner himself realized something was wrong. The Swedish Saab 340 has a take-off weight of only 15 tons, but it can still be transformed into an ASC-890 early warning aircraft. Although the range is close to three digits and it only has air radar function, command and control need to go down to the ground station for operation. But at least it shows that it is feasible. And considering that the Falcon 8Z is twice the size of its counterpart, it may even retain complete functionality. At this time, Liu Yongquan also gave a high-five: "There is a market for young people!" "Who would want to be in a decent country..." He originally wanted to say, among all decent countries, who is willing to make external purchases? Everyone should also try to develop their own early warning aircraft. Even the next-door Dai Ying has two generations of Gannet AEW3 and Shalkton AEW2 products that have reached new heights of ugliness. But on second thought, this may be a bit too insulting to the law. After all, the French really dont even think about it. So I finally changed my tune: In short, the biggest advantage of business jets is that while they are small in size, low in cost, and easy to service, they can also maintain a longer range and airtime than most large passenger jets, and even only need two aircraft to rotate. Being able to maintain 24-hour uninterrupted patrols is very attractive to many countries..." And Ed Steiner happened to have this in mind. For most countries, they do not need a detection range of four to five hundred kilometers and the ability to handle hundreds or thousands of targets. As long as they can deter neighboring countries with conflicts of interest, it is enough. Therefore, strategic early warning aircraft that can easily reach 100 tons or even 200 tons are a serious waste of performance for these users. On the contrary, the economical and practical ones will be more popular. Moreover, the upgraded Rafale F2 will soon enter the delivery cycle, and many potential users have begun to include this model in their option lists again. If at this time, Dassault can launch an early warning aircraft with adequate performance in all aspects... Then it can obviously achieve the effect of 1+1>2. In particular, the Mirage 2000 is originally the active equipment of many countries in the Middle East, and it can bring many advantages. Moreover, the French Air Force itself no longer needs to worry about whether to spend huge sums of money to upgrade the E3F. The money that the Yankee Lion opened his mouth was enough to buy several new airplanes. "I" Ed Steiner blurted out ready to agree. But at this moment, he suddenly had a different idea - As a technical staff member of Dassault, Ed Steiner first came to Huaxia, just to ask the other party to help Snecma solve the reliability problem of the M88. But this search doesn''t matter, it seems to have opened Pandora''s box, involving a lot of subsequent events. In the end, the M88 and SeA650 almost became other people''s aviation engines. Even the Falcon Z project inexplicably made the Chinese become the second largest participant. Almost lost control. Moreover, the core technologies are still in the hands of the other party. This situation is obviously not good for Dassault. And now, the Chinese have taken the initiative to propose an early warning aircraft based on the Falcon Z? I''m afraid you don''t have any good intentions? You know, France has no experience in developing early warning aircraft. You will definitely have to rely on others for onboard equipment. So, in the entire early warning aircraft project, China''s contribution accounts for 100% of the mission load and 30% of the platform... Doesnt the plane belong to someone else? Furthermore, the Chinese''s own early warning aircraft has only been in service for less than two years, and no one knows how good it is. In comparison, Sweden, which I just remembered, seems to be a better partner. At least they can equally share the project leadership. And Ericsson''s products have been equipped for many years, at least I haven''t heard of any fatal flaws. Thinking of this, Ed Steiner immediately changed his mind: "In this matter, I personally may not be able to give an immediate answer. I need to report the situation to the group headquarters, and the board of directors will make a decision after discussion..." As a veteran who has been around the world for decades, he didn''t say anything to death. After all, Dassault has never had in-depth cooperation with Ericsson in the past, and it does not even know whether the other party has any intention to cooperate. If something goes wrong in the middle, leave some room for maneuver now so that you can have a way out then... However, Ed Steiner changed his mind temporarily after all, and this wave of acting is really a bit stiff. Although Liu Yongquan across from him didn''t fully guess what he was thinking, it was not difficult to see that the so-called board discussion was just a way to delay time. Of course, we are all decent people, and we dont say anything when we see through something. He just secretly kept the situation in mind and prepared to go back and ask Mr. Chang if he had any countermeasures... (End of chapter) Chapter 1 Reborn in 1996, design a fighter jet! (Please read the new book) Chapter 1: Rebirth in 1996, design a fighter jet! (Please read the new book) In a classroom at Beijing University of Aeronautics and Astronautics, Chang Haonan was sitting on a chair, looking blankly at a pile of aircraft design drawings spread out in front of him. I have three students who look like two boys and one girl. Am I not in Base 29 testing the JF-22 ultra-high-speed wind tunnel that will be put into use soon? Chang Haonan thought to himself: Where is this? The surrounding walls are slightly worn, and the bottom one meter near the ground is painted green, especially in areas that are often exposed to the sun. ?Two huge ceiling fans were humming overhead, and there was no sign of an air conditioner. The blackboard next to it is actually a black cement board instead of the common green board made of epoxy resin and polymer alloy. It has turned white due to long-term use and wear. Even sitting in Chang Haonan''s current position, he can see it. I don''t know what''s written on the side. He was quite sure that there was no such place in Base 29. Chang Haonan''s eyes quickly focused on the wooden desk in front of the blackboard. There was a school emblem hanging in front of the desk, which was a pattern he was very familiar with. Beijing University of Aeronautics and Astronautics, my alma mater. He raised his hand and pinched the right side of his cheek, and then confirmed that this was not a dream. Haonan, Haonan? One of the boys with curly hair and a slightly fat figure leaned over and gently patted Chang Haonan on the shoulder. "Are you okay? Why did your face suddenly turn pale? And you have been stunned for five or six minutes since just now. If you find it too difficult, just say it, and the brothers will not laugh at you." ?Chang Haonan turned his head to look at the other person, and it took him a few more seconds to find this face from distant memories. Old Wu? Chang Haonan asked tentatively: How come you... ??The person he just spoke to was his roommate when he was in college, named Wu Yifan. The two had different ambitions but had a good relationship. The latter entered the business world after graduation and gained a considerable fortune. only What appeared in front of Chang Haonan was the image of Wu Yifan when he was young. At that time, his hair was still very thick, and there was no scar at the corner of his eye that was later chopped off in retaliation by a competitor. "Hey, Haonan, even if you really find it difficult, there''s no need to pretend that you don''t know Lao Wu. Even if we can''t design a supersonic fighter, there''s still no problem in designing a glider. There''s no shame in it." Another tall and thin man said The boy showed a helpless smile: "And I think you should take a break. You''ve been staying up late these days, right?" ?This sentence finally fully awakened Chang Haonan''s memory of the scene in front of him. Dont worry, Im fine. He took a deep breath, and then looked down at the drawings on the table in front of himit was a J-7, or to be more precise, the design drawings of the MiG-21, a copy of the J-7. This happened in the second semester of his junior year, that is, in the first half of 1996. He was greatly stimulated by the dispute between China and the United States at the beginning of the year, so he decided to study aircraft design, which accounted for 10 credits. In the course, an improved fighter jet was designed using the J-7 as a prototype. The three people in front of him are classmates in the same course group as him. Except for Wu Yifan, who is not interested in this major but is determined to go into business, the tall and thin man named Zhou Shuwan is the other big figure in the group besides himself, and his father is a senior researcher at the 601 Institute. This matter Only a few people know about it. ? Zhou Shuwan also entered Institute 601 after graduation, and later served as a designer of a certain type of carrier-based aircraft subsystem. As for the girl who has never spoken, her name is Zhang Man. She is a petite, sweet and cute beauty with above-average academic performance. Since Zhou Shuwan has always liked her, he decided to let her join the group. However, Zhang Man actually had no feelings for Zhou Shuwan and just kept holding the latter''s thigh. He got high marks in all experimental courses and group assignments, but Chang Haonan was not familiar with her, and they lost contact after graduation. ?Such a group actually only has 2.5 people, but now that the team formation stage is over, it is no longer possible to replace them casually. Regarding Chang Haonans idea of ??designing a supersonic fighter, the three people naturally felt that it was completely impossible. They did not object directly. They just found the design drawings of the J-7 prototype MiG-21 and said that since they want to improve, they should at least fully understand the design prototype. ??If Chang Haonan can calculate the aerodynamic performance of the MiG-21, then they agree to accompany him to continue the adventure. If not, then follow Zhou Shuwan''s idea to design a glider with a large aspect ratio. ??Is it just the result... After all, people have their limits. For Chang Haonan, whose talents on the original timeline are generally just hard work, this matter is indeed beyond his capabilities. In the end, he had no choice but to design a glider with three other people as agreed. Although he got a good score in this course, it has always been a regret for Chang Haonan. As for the current situation, he should have returned to his college days nearly 30 years ago, and it happened to be at this critical moment. Calculating the performance of the MiG-21 is not a problem at all for Chang Haonan now. Because in addition to the work experience from later generations, the moment Chang Haonan saw the complete design drawings, a [scientific research guidance system] suddenly appeared in his mind After he comes up with a reasonable and closed-loop project idea, the system can spend a certain amount of [scientific research points] to determine what to do and how to do it in each next step, and give him the corresponding capabilities. Simply put, this system is equivalent to a tutor who is responsive and provides guidance. ?The moment he saw this system, Chang Haonan almost fainted with excitementafter all, everyone who has studied for a graduate degree hopes to have such a mentor. Of course, if 10 times the scientific research points are consumed, the system can directly give the correct or optimal result, but as someone who has actually led a project, Chang Haonan knows very well that this is by no means the most efficient way to use it. ?Translating the results in his mind into reality also requires time and energy. Even if he stays awake, he will not be able to output many specific scientific research results. Moreover, the system''s scientific research points probably do not support such a squandering. More importantly, he is not the only scientific researcher in China. ??If you can drive the efficiency of the entire Chinese scientific research system by solving key problems or providing methodologies with the help of a super mentor like the system, then the power you will unleash will be hundreds of times greater than if you were alone. ?However, it is too far to talk about this in Chang Haonan''s current state, so he decided to redeem his past regrets first. Scientific Research Points: 10 Theoretical level (full level LV5): LV2 (0/10000) Engineering experience (full level LV5): LV1 (0/1000) Management ability (full level LV5): LV0 (0/100) Comprehensive ability: LV1 Projects in progress: 0 Projects that can be carried out: 1 The ability value level is not high. But this is a good thing. It means that for the system, the knowledge that Chang Haonan mastered before his rebirth was very rudimentary. The levels here are obviously based on the upper limit that humans can reach, not on the current era. In other words, the future is promising! Looking at the system panel, a bold idea came to his mind. Even though he himself knew it was unreliable. But now that we have a system, we have to give it a try after all... Design me a J-20! ? Don''t worry about whether China could build the J-20 in 1996, just tell me whether it is handsome or not! Stealth, canards, dual-engine heavy combat, DSI air inlet, active phased array radar... You must know that the YF22 has not yet completed its test flight at this time! However, Chang Haonan''s YY was poured cold water on him not long after he started. Insufficient competency level and no available ideas for the project Obviously, his idea about the J-20 is just an idea at best, and it completely fails to meet the "reasonable and closed-loop project concept" required by the system. It makes sense to think about it, just like a graduate student who has just started graduate school and asks his instructor to teach him how to design a fifth-generation fighter jet. Obviously, he is still slightly lacking in ability and experience. We still have to modify the MiG-21 based on the existing equipment... Chang Haonan had no choice but to return his attention to the MiG-21 design drawing in front of him. The system now only has 10 scientific research points, and it must not be used indiscriminately. There are indeed many deeply improved models of the MiG-21 in later generations, but some of these designs require a lot of computational simulation work. Chang Haonan does not know that based on the scientific research in 1996 What kind of plan can he implement given the conditions and his current abilities. ?So the ideas of Zhou Shuwan and the others are actually correct. It is better to understand the MiG-21 first, and by the way, check the hardware level of Beijing University of Aeronautics and Astronautics in the mid-1990s. Use CATIA to model the MiG-21, and then use the finite volume method to simulate the aerodynamic characteristics of the aircraft. Chang Haonan thought silently in his heart. Consumption of science and technology points for improving the project: 1 point, 10 points for directly giving the project results. Are you sure to carry out the MiG-21 modeling and simulation project? ?Chang Haonan took a deep breath and clenched his fists suddenly. Its done! Confirm! Improve the project! A large amount of information quickly poured into his mind. Although he still didn''t know what the result of this problem was, he at least knew what to do next and how to do it. Thats it, I understand it completely.jpg After another half-minute of silence, Chang Haonan spoke again: "I have thought of a way. Believe me, we can design even a fighter jet." "Haonan, do you... really have an idea?" ?Zhang Man placed an enamel cup filled with hot water on the table in front of Chang Haonan and asked with a slightly skeptical tone. On the side of the enamel cup is an air force emblem and an inscription from the instructor: "Establish a powerful people''s air force to defend the motherland and prepare to defeat the invaders." Chang Haonan specially asked his father to get it. He has been carrying it with him since then and has been using it for many years. As a person whose main goal is just to get high scores, Zhang Man naturally felt that the idea of ??designing a fighter jet was a fantasy from the beginning. However, after all, Chang Haonan''s usual grades were among the best, and the course design work was indispensable for the latter''s contribution. She also didn''t want to object directly and make the relationship too tense. Thats why I came up with the idea of ??asking Chang Haonan to analyze the aerodynamic characteristics of the MiG-21, hoping to make the other party retreat in spite of difficulties. ?There is no exam in this course, and the course design assignment will directly affect their final grade, and she doesn''t want to go crazy with it. "Thank you..." Chang Haonan picked up the cup and drank the water in it. Then he grabbed the MiG-21 design drawing, folded it and put it in the bag next to him. Lets go to the computer room! This book has been internally invested and signed, please read it. With the current Qidian mechanism, recommendations before new books are put on the shelves only rely on follow-up reading data, so readers are kindly requested to take a few minutes to read to the end of the book. Kneel down and thank you! ? (End of this chapter) Chapter 2 Computational Fluid Dynamics Simulation Chapter 2 Computational Fluid Dynamics Simulation In 1996, it was an era when you had to wear shoe covers when entering the computer room. Computers were a new thing. Of course, students personal computers were almost non-existent. Even the schools computer room could not be used unless approved by the college or a higher level. You can only use your student ID card for up to one hour a day. At this time, Chang Haonan was sitting in front of a computer of unknown brand, looking at the familiar yet unfamiliar pictures on the monitor. The classic fluid dynamics calculation software Fluent is a relatively new version compared to 1996. ??The oldest fluent is just a partial differential equation solver and does not even have a meshing function itself. In that case, the workload will be several times more. ?Although Chang Haonan can perform smooth operations with system buffs, the computer itself in 1996 was really unable to respond smoothly, and what he lacks most at the moment is time. ?Even so, the 3D modeling process still requires additional software, such as Dassault''s CATIA. Now Ye Qing is really back, in a double sense. Chang Haonan thought to himself as he looked at the CRT monitor, trackball mouse and win95 interface in front of him. Haonan, when did you learn these things? Wu Yifan, standing behind Chang Haonan, had curiosity in his eyes. ? What he is concerned about is of course not the simulation modeling work that Chang Haonan is doing per se, but the latter''s extremely proficient use of computers. He knew a big boss from Huaxia Renmin University. He made more than 200,000 yuan through computer programming when he was a sophomore, and he became his idol for a time. "Of course when you go to contact business outside the school." Chang Haonan said without looking back. ??And Zhang Man and Zhou Shuwan, who were also standing behind Chang Haonan, had their jaws almost dropped with disbelief on their faces. Compared to Wu Yifan, who was hardly interested in his studies, the two of them knew how difficult it was to model a complex structure like an aircraft, even if they just transferred the things they had already drawn on the drawings to the computer. Even for a novice, this is an astronomical amount of work. ?However, all this was so easy in Chang Haonan''s hands. As his fingers flew around on the keyboard and mouse, a fighter model with a large delta wing and a conventional layout gradually appeared on the computer screen. Equivalent wing model, completed Full aircraft aerodynamic model, completed ? halfway through, the computer room management teacher came over to remind them that the time was up. Wu Yifan, who was afraid that Chang Haonan would be disturbed, decisively added an hour of his own time to the computer. Later, Zhou Shuwan and Zhang Man also contributed their student ID cards. Inlet duct modeling ?Engine modeling Under the "guidance" of the system, Chang Haonan almost entered a state of selfless work. When he finally completed the required modeling work, he realized that several hours had passed. "Is this... the end?" Zhang Man stared at the screen in front of her in stunned silence. Although she had just watched the entire modeling process, she was still impressed by the fact that it took four hours to create a three-dimensional model with such high precision. There is a sense of unreality. "Strictly speaking, of course not." Chang Haonan stretched out and leaned back on the chair: "But our course only requires aerodynamic design, so we don''t care about airborne equipment, internal structures, etc. Anyway, we know that this plane can definitely fly." "Awesome, Brother Nan, I don''t think even the professors in our college are more skilled than you, right?" Zhang Man did not hesitate to praise Chang Haonan at all, and his name has also changed. . ??Originally I thought the big guy in the group was Zhou Shuwan, but it turned out that Chang Haonan, who seemed a little crazy before, was the real hidden boss! No, Xueshen! How can Xue Shens madness be called crazy? Thats just ordinary people not understanding Gods thoughts. If we only talk about simulation, its pretty much the same. ?Chang Haonan reached out and touched his thick hair, leaned back on the chair, and showed a confident smile. He is not just boasting. There may not be anyone in the world who is more skilled than him in this regard. "But what we were talking about before was to calculate the performance of this aircraft?" Wu Yifan scratched his head. Although he also saw that Chang Haonan was powerful, he really didn''t want to increase his own strength. "Of course, but the calculation process will be more time-consuming, so this time I only calculated the performance of the inlet part. Next, I only need to use the finite volume method to solve the Euler equation for the flow field outside the body, and use the finite volume method for the flow field inside the inlet. By solving the N-S equation, you can obtain more typical inlet performance data. ?Chang Haonan saved the model file and opened fluent to prepare for the next step. For grid generation of complex shapes, partitioned structured grids or overall unstructured grids can be used. Partitioned structured grids have high calculation efficiency, but the degree of automation of grid generation is low, while the characteristics of unstructured grids are opposite. As a "scientific research mentor", the system naturally taught Chang Haonan all these two techniques, but the latter needed to choose one of them to output to the computer in front of him. Although the new version of the software in 1996 can already divide the grid, the function is not very complete. Considering that the performance of computers in this era is still slightly different from that of more than 20 years later, Chang Haonan finally chose a computer with higher computational efficiency. former. "Unit No. 27, it''s time for you guys to board the computer again, this time..." At this critical moment, the computer room teacher''s voice came from the door again, and this time they no longer had another student ID card to use. . Use mine. A cold female voice sounded from the row behind Chang Haonan. Several people turned around and saw a tall girl with long hair shawl, wearing a light blue dress and round glasses stood up and handed over a certificate with a red cover. He handed it to the computer room teacher: "I got off the plane here, and it''s theirs after that." That certificate was obviously unusual. The computer room teacher just glanced at it and turned around and walked out of the computer room without even writing anything down in the notebook in his hand. "Thanks" After all, he was a big help, so after the computer room teacher left, Chang Haonan quickly thanked him, but after he opened his mouth, he was not sure whether the other person was a teacher or a student. Yao Mengna, a second-year Ph.D. student, should be considered your senior. Yao Mengna gave a brief self-introduction, left the computer she had just used, and came to the side of Chang Haonan and others: "As long as you don''t get off the computer, you can keep using this computer, and you don''t have to worry about anyone disturbing you again." Thank you so much, senior sister, we... ??Wu Yifan thanked him quickly with a smile on his face, but he was interrupted in the middle of his words: "It''s okay, I just want to see how you plan to continue. Are you going to conduct a fluid dynamics simulation of the entire machine?" Obviously Yao Mengna is also very interested in the modeling that Chang Haonan is doing, but because the four people just spoke in very low voices, she could not hear the specific content clearly. Chang Haonan nodded: "Yes, we are going to use Fluent to numerically solve the fully viscous Nevi-Stokes equation." ?Yao Mengna''s eyes widened slightly after hearing this answer. She really hadn''t thought about these people, or that this one who looked like an undergraduate was going to play so big - she had already noticed these people in the row in front of her just now, and naturally knew that all the work was done by sitting in front of the computer. Completed by this person. In fact, even Yao Mengna, who is in the second year of her Ph.D., has only just begun to gradually come into contact with computational fluid dynamics (CFD) simulations of aircraft. "You don''t mind if I look over there, right?" Although Yao Mengna''s tone was questioning, she sat on a chair next to her before Chang Haonan could answer: "Maybe I can still be of some help." Having said that, Yao Mengna herself didnt actually have a particularly clear idea. She mainly wanted to find some inspiration through Chang Haonans approach. At this time, digital design and computer simulation are still new things to aviation designers across China. ?While the two were talking, Chang Haonan had imported the just-completed modeling into Fluent and started meshing the finite volume method. int Then its time for him to perform. Fluent in this era does not yet have a beautiful graphical interface and a large number of preset models that can be directly called. Especially for complex simulations such as supersonic fluid dynamics, it can only complete part of it. ?However, this does not stump Chang Haonan, who already knows all the next steps. Since the existing software can only complete part of the work, use Fortran language to write an algorithm for numerical solutions to partial differential equations. ?? Then operate Fluent to complete the lazy part by calling external programs, and then use scripts to realize automated operations. Yao Mengna, who was watching from the side, had a relatively relaxed attitude at first, but after just closing her eyes and yawning, she realized that she could no longer keep up with her thoughts. ?Especially Chang Haonan''s code input speed almost took off, leaving her with no time to clearly see the function of each piece of code, let alone write down the entire process. "that" Yao Mengna spoke hesitantly, wanting to ask Chang Haonan about his specific numerical simulation ideas, but for a moment she couldn''t bear to ask the undergraduate question directly, so she had to use a more euphemistic way of saying it. Can we get our thoughts together? My thoughts are a little different from yours. Okay, tell me your thoughts first, and let me see if there are any problems. Chang Haonan was completely immersed in work again, and he had only been reborn for a few hours, so he subconsciously thought that he was still leading interns in the research institute. "ah?" ?Yao Mengna almost broke through with one sentence. No, what do you mean you should check to see if there is any problem? Do you really regard yourself as the standard answer? ?Are you so confident? And most importantly She couldn''t think of a complete idea at all! ?Yao Mengna took several deep breaths in succession and patted her chest again before she could catch her breath. Nono need, just tell me what you think, and Ill just compare it myself. (End of this chapter) Chapter 3 Are all undergraduate students so good these days? Chapter 3 Are all undergraduates so good these days? "That''s okay, then you can take note of it." Chang Haonan didn''t think much and continued to type on the keyboard without looking back. At this moment, his work also entered the final part. Yao Mengna didn''t care about anything else at this time, and quickly took out a pen and notebook to record. However, Chang Haonan, who had the most contemptuous attitude in the world, made the other three people dumbfounded - Is this the real boss? ??Teach a second-year PhD student directly as a second-year undergraduate student? ?Wu Yifan suddenly regretted that he had not studied hard in the past three years. After writing the last line of code, Chang Haonan pressed the middle button of the mouse and dragged the programming interface back to the top. His programming format was very standardized, and he did not write comments just to save time. In addition, the code was not too much. So it is very simple to talk about. Considering the limitations of computer performance and the symmetry of the model, half the model is used for calculations to save resources. The mesh near the wall can locally increase the density... The inviscid flux adopts the second-order Up-wind Roe-FDS format The turbulence model adopts the k-SST two-equation model. Taking into account the high temperature effect of the gas, the thermal complete gas model considering variable specific heat is used in the calculation..." The molecular viscosity is calculated using Sutherlands formula, adiabatic no-slip and solid boundary conditions are adopted for the wall surface, and pressure far field and pressure outlet boundary conditions are adopted for the inlet and outlet respectively. When each residual indicator decreases by at least two orders of magnitude and the export flow rate remains basically unchanged, the calculation can be considered to have converged After spending a lot of time explaining his simulation ideas, Chang Haonan directly mobilized the program to start calculations for the modeling he had just done, and almost habitually said to Yao Mengna, who was still writing fast: "Specific programming statements and grids I wont talk about the division operation. People who have studied in graduate schools should know it. ??? Yao Mengna raised her head in confusion. ??Chang Haonan''s words simply stopped her. What does people who have studied as graduate students should be able to do? How can anyone teach me this kind of thing step by step now? I almost always figure it out myself, okay? ??And am I a graduate student or are you a graduate student? ? Okay, Yao Mengna admitted that the undergraduate student in front of her was indeed a bit better than herself in simulation... Im so angry, but theres nothing I can do. ?But... is this really something that undergraduates can do? ?Her eyes glanced at the student ID card that Chang Haonan placed next to the keyboard. It is the color of undergraduate students. ?She even quietly opened the outer page of her student ID card to check it. ?Chang Haonan, Class 9302, Department of Aircraft, School of Aeronautical Science and Engineering, Beijing University of Aeronautics and Astronautics, is a junior this year. But...how is this possible? Putting aside computational fluid dynamics, even writing code itself is not that easy. ?Most students only started to learn about "computer" after entering their freshman year. Considering that they only have one hour of operating time per day at most, very few can perform simple programming. unless Unless he has been exposed to these things before going to college. ?Yao Mengna was obviously not the only one who had such thoughts. Zhang Man on the other side looked at Chang Haonan and his eyes gradually changed. You need to know who were the people who could buy a computer at home in the mid-1990s? Lets not say you have to be rich or noble, at least you have to have something. In fact, Chang Haonan had realized that his attitude just now seemed a bit wrong, but looking at Yao Mengna not far behind him, he really didn''t know what to say about it. So I had to stay silent and let this matter pass as soon as possible. Fortunately, the awkward atmosphere did not last long. "It''s already dinner time. I''ll buy food for you." Zhang Man looked at the clock on the wall and offered to help with errands: "Senior sister, do you want one too?" Before Yao Mengna could answer, Zhou Shuwan stood up next to him: "I''d better go. It''s quite far from the canteen, and my pace is faster." ?This sentence made Chang Haonan, who had completed the programming and was just waiting for the computer to run the results, shake his head helplessly. Zhou Shuwan did have true feelings for Zhang Man, but the latter... Neither agreed nor refused, so he was hung up for four years. Chang Haonan is not sure what happened next, but the two people must not have gotten together, because Zhou Shuwan, like himself, still was not married until more than 20 years later. In short, licking a dog will not end well. Dont get me wrong, Chang Haonan has never been a licker. He was just focused on work when he just graduated. Later, he became somewhat successful at work, got older, and traveled all day on business, so... ?Of course, he will not be stupid enough to directly stop the other person from doing anything. A person who is immersed in love will not realize that he is being played like a monkey. On the contrary, he who is trying to dissuade is likely to be in trouble. ?Let''s wait until we have the opportunity to make some insinuations. If we still don''t understand, we can only respect and bless it. In the end, Zhou Shuwan couldn''t defeat Zhang Man and made the latter trot to the canteen to buy food. "Strange...she usually asks me to go, what happened today..." Zhou Shuwan muttered with some confusion as he looked at Zhang Man''s leaving figure. "Uh..." Wu Yifan, who had seen a similar situation for the first time, put his hand on his forehead and sighed. Whats wrong? Zhou Shuwan heard Wu Yifan sigh and thought there was something wrong with Chang Haonan''s simulation, so he quickly came over, but the screen seemed to be similar to before, with a bunch of codes and data that he couldn''t quite understand. ?At this time, even Yao Mengna, who was originally looking like a loser, couldn''t help but raise her head and glance at Zhou Shuwan with hopeless eyes, and then showed an expression of an unteachable child. In fact, the workload of this simulation is not large. Chang Haonan''s purpose is just to calculate the original performance of the MiG-21, especially the total pressure recovery coefficient of the inlet under several typical working conditions, and the wing at different altitudes. And the lift coefficient under the angle of attack and the control efficiency of several rudder surfaces, and then make the body model. After all, according to his plan, no changes will be made to the rear fuselage of the aircraft. It will be used directly when the time comes. ??And considering the limitations of hardware performance, he only asked the system to output the performance parameters of a few design points, and did not directly run the flow field curve as he was used to before rebirth. However, despite this, by the time Zhang Man bought the rice, the calculation was still only partially completed. What are these... parameters? Zhang Man distributed a foam lunch box and disposable tableware to everyone from the bag in his hand, while looking at the screen in front of Chang Haonan with wide eyes. As a student majoring in Beijing Airlines'' ace major, Zhang Man could understand what these results probably represented, although she had not followed Chang Haonan''s idea of ????simulating it just now, but she still asked with curiosity and admiration. "Well, the static pressure distribution at specific points on the inlet wall under different airspeeds and angles of attack, the Mach number distribution at typical positions of the axial interface, and the drag coefficient at different incoming flow Mach numbers can be calculated. The average total pressure recovery coefficient of the airway, as well as the total pressure distortion. ?In addition, if you make these data into charts, you can also draw the flow field structure at the design point. Of course, the calculation is only more than halfway done now, so you have to wait. " After Chang Haonan finished speaking, he stood up with the lunch box in his hand and prepared to go to the empty classroom next to him to eat - letting Zhang Man bring the lunch box into this building was probably the limit of the management teacher. If the latter could see five people Sitting in front of the computer to eat, I''m afraid my blood pressure will explode and I will faint. (End of this chapter) Chapter 4 Next step (seeking further study) Chapter 4: Next step (please follow up) ?But perhaps it was because his body was seriously lacking rest before he was reborn, coupled with an afternoon of sitting and hunger, Chang Haonan suddenly felt light-headed when he suddenly stood up, and then the edges of his vision gradually turned black... Fortunately, Wu Yifan, who had quick eyesight and quick hands, stretched out his hand to support him from behind: "Haonan, you probably haven''t slept much these days. Don''t be too anxious. There is still a lot of time for course design, so don''t rush for a day or two. " Brother Nan, you can go back and take a rest after dinner. You can leave data graphing and performance analysis to us. ?Zhang Man''s expression of concern did not seem to be fake. The four of them were both prosperous and devastated as the same course design team. Naturally, she was worried about the new person she had just embraced. ?Furthermore, although the latter tasks are also very tedious, they are not very technical and are not difficult for junior students when the data is already available. As an experienced person, Zhang Man deeply understands that being in a group with a big boss does not mean that he can do nothing. Although it is easy at the time, there is a high probability that there will be no next time. On the contrary, if you take the initiative to share some tasks, you will most likely gain the favor of the top academics. "No, this is the original design data of MiG-21. Now I just compile the calculation program first and then verify whether it can run smoothly. In this way, after our design is completed, we only need to slightly modify the model and grid mode. You can do the calculations. While talking, several people had already walked to the next classroom. Chang Haonan opened the lunch box in his hand and answered without raising his head. ?Two meat dishes and one vegetable dish with white rice was considered a good meal in the 1990s. ?Leave aside what Zhang Mans personality is like, this kind of white, thin girl doesnt really fit in with his aesthetics. If I have to say... ?Chang Haonan glanced at Yao Mengna, who was eating quietly opposite. ?So he discovered that only his box contained two meat dishes. This Zhang Man can only be said to be a little scheming, but not much. "That''s it...forget it, let''s eat first." Zhang Man, who knew he had just acted in the wrong place, had a somewhat embarrassed expression on his face, but he returned to his original state in an instant. Are you going to modify the design of the aircraft later? Yao Mengna also heard what Chang Haonan said just now, raised her head and asked. Yes, this is a big assignment in our aircraft design course. When Haonan first said he wanted to design a supersonic fighter jet, we thought it was unrealistic. But we didnt expect him to be so powerful. ?Zhou Shuwan is definitely an honest man, and even praised Chang Haonan in front of his goddess. ?After seeing the latter''s smooth operation, the other three people no longer had any thoughts of questioning Chang Haonan''s ideas. Its quite an idea. When I first took this course, I designed a low-wing transport aircraft, and I got full marks in the end. Yao Mengna raised her head slightly, seeming to miss her past undergraduate days: "In fact, according to my experience, as long as you can complete the design process without making mistakes, you can almost get full marks." ?Of course, Yao Mengna was just stating a fact and had no intention of bragging. In her opinion, for students like Chang Haonan, getting perfect marks in course design is just something that comes easily and is not worth mentioning at all. ?However, invisible pretense is the most deadly. This sentence still made Zhou Shuwan and Wu Yifan look at each other. After all, if it weren''t for Chang Haonan, they really wouldn''t dare to say that they could come up with an error-free design, even if it was the simplest aircraft as Zhou Shuwan said. By the way, things cant be saved in the schools computer room. How are you going to bring Haonans program back? After more than ten seconds of silence, Zhou Shuwan brought the topic back to their design project. Chang Haonan, who had been eating rice with his head down, was sorting out the next step in his mind. Since he did not let the system directly give the design results, after determining the general direction, the specific details still had to be optimized manually. In fact, it means making several different designs, and then testing their key performance at the design point to see if you can find some rules, and then slowly fine-tune them. These are all very experienced operations. So after hearing Zhou Shuwans question, Chang Haonan answered almost without thinking: "Who among you brought U..." At this point, he realized something was wrong. Where did he get a USB flash drive in 1996? So he quickly changed his words: "Which of you brought a floppy disk? Our program is not big. We separate the model''s engineering files and the CFD simulation code." Just save it to two floppy disks." The four of them looked at each other in silence. ?These days, everyone doesnt even have their own computer, and few people would spend money to buy storage media like floppy disks. "I have two empty floppy disks here. I''ll lend them to you first." Finally, Yao Mengna spoke: "But remember to return them to me after you use them." ?Chang Haonan took the floppy disk from the opponent''s hand. Yao Mengna''s name, as well as her college and office were written on the disk. Sister Yao is from Academician Du Yishans research group? Zhang Man next to him came over and took a look. Then asked in shock. "Yes, Academician Du is my mentor." Yao Mengna replied calmly, flipping a few strands of hair that hung in front of her forehead to her shoulders, as if it was just a trivial matter. Zhang Man and Zhou Shuwan''s eyes widened almost at the same time. Academician Du Yishan is a Beidou-level figure in the field of aerodynamics in China. Although he is no longer responsible for specific aircraft design projects, the connections and resources behind him cannot be underestimated. ?In this era of tight scientific research funding, having such a mentor means being exposed to more topics, which also means many more opportunities than others. ??And Yao Mengna is also a student of Du Yishan. You should know that academician students and academician research group students may sound similar, but in reality they are very different. Zhou Shuwan, who had already determined to further his studies due to family reasons, was immediately full of admiration for this senior student, and began to hesitate to ask the other research groups standards for recruiting students. Zhang Man, who was next to him, had already begun to think about how to build a good relationship with this senior. Only Chang Haonan and Wu Yifan were completely indifferent to this. The former is still considering how to arrange the next work. After all, each new design requires re-modeling and calculation of the nose module. Although most of the code does not need to be rewritten, it is also a very time-consuming task, and he It is impossible to be lucky enough to meet Yao Mengna in the computer room every time. As for the latter, he has no interest in this major at all. At this time, he is thinking about a business deal that he will go out to discuss in the next two days, and he did not even hear the conversation of the other people just now. After dinner, Chang Haonan waited for a while and let the computer run out all the calculation results. After receiving the system''s [Project ended successfully] prompt, he copied the files to two floppy disks, and then He rubbed his sore eyes and breathed a sigh of relief. On the one hand, the preliminary work is finally completed, and on the other hand, it also proves that this system... Its really awesome! (End of this chapter) Chapter 5 J-7 modification plan Chapter 5 J-7 modification plan What are we going to do next? ?Zhou Shuwan watched Chang Haonan turn off the computer with still unfinished thoughts. He used to think that he was quite talented in academics, but today he really saw what it means to have a better life than others. "Then of course I go back to sleep. I have stayed up late for several days. If I don''t catch up on sleep, I will die suddenly." Chang Haonan took out two floppy disks and carefully put them into his school bag. Then he stood up and stretched his muscles: "Old Wu is right. There is still time to design the course. There is no rush in this day or two." ?After returning to the dormitory, Chang Haonan took a hurried shower and fell asleep almost as soon as he touched the pillow. Maybe it was because he hadnt had a good rest for too long. In short, when Chang Haonan woke up, it was already noon the next day. ? He ??almost habitually wanted to go to the bedside to touch his mobile phone to see if there were any WeChat messages. After grabbing it, he realized that he had returned to 1996. Fortunately, it is a Sunday, so there is no need to worry about classes. "Haonan, what did you do last afternoon? When we came back in the evening, we could hear your snoring from outside the door. You were silent in your sleep for more than two years." As soon as Chang Haonan sat up from the bed, a voice came from his upper bunk. He raised his head and saw a boy with short hair, holding a covered book and reading. ?Chang Haonan remembers that his name was Huang Zhiqiang and his grades were very good, but he really didnt have any more specific impression. Hey, I have been busy with the course design these days. I must be too tired. Im really sorry. Chang Haonan said and picked up his washbasin, cup and towel from the shelf next to him. Unsurprisingly, Wu Yifan is not in the dormitory. He has lived outside most of the time since his sophomore year. Course design? Huang Zhiqiang put down the book in his hand and looked at Chang Haonan below: Do you really want to rely on you two undergraduates to design a fighter jet? As one of the top students in the class, Huang Zhiqiang is well aware of the difficulty of designing a supersonic aircraft, and he also knows Chang Haonan who lives in his lower bunk very well. ?The opponent cannot be considered a talented player, not to mention that there are two slow-moving players in the course group, Wu Yifan and Zhang Man. Only two people can actually play a role. Its enough, its not too complicated. Chang Haonan was thinking about which improvement plan to choose, and he just waved his hand and answered casually. After saying that, he trotted away from the dormitory, leaving Huang Zhiqiang with a stunned look on his face as he disappeared through the door. "It''s really crazy..." Huang Zhiqiang shook his head and picked up the book again to study. "Zhiqiang, you said...he can''t really design it, can he?" Liu Ran, who was also reading a book on the upper bunk opposite, asked. Tah, just them? Huang Zhiqiang sneered, looked around to make sure there was no one else in the dormitory, and then continued: "You see, so many members of the academic department and academicians can only copy homework according to the shabby designs designed by the Soviets, if you ask me. , they are all trash, not to mention a few of them. After finishing speaking, Huang Zhiqiang paused for a moment, turned over the book in his hand and showed it to the other person. The content inside is actually in English. "I asked my sister to mail me an aircraft design manual from the United States. There are many things in it that are not in our textbooks, and the teacher never taught them in class. Are you still designing an aircraft?" Huang Zhiqiang said with a look of disdain. expression. He originally wanted to go abroad after graduating from his bachelor''s degree, but Beijing Airlines'' government-sponsored undergraduate study abroad quotas are not available every year, so he had to settle for a postgraduate degree in China first. After graduating from a master''s degree, there will be more quotas to study abroad for a doctoral degree. Quite a few. Of course, the premise is that he cannot participate in confidential projects during his master''s degree. It seems it has to be you, Brother Qiang. Liu Ran was relieved when he heard what he said and quickly gave Huang Zhiqiang a thumbs up. The dormitory soon became calm again. ?However, even though Huang Zhiqiang said this, Chang Haonan''s calm tone and movements just now lingered in his mind, making him unable to concentrate. Do they have any other trump cards that I dont know about? Huang Zhiqiang frowned slightly and thought in his heart. On the other side, after washing up as quickly as possible, Chang Haonan changed his clothes and prepared to go to the cafeteria to have lunch first, and then go to the classroom to meet the other three people. After all, the course design assignment still involves a lot of writing, drawing, and simple calculations. He can''t handle it all by himself, and the extra three hours of computer time are crucial. When Chang Haonan arrived at the classroom where they had agreed to arrive, Wu Yifan and Zhou Shuwan were already waiting inside. However, the three of them waited for another ten minutes and did not see Zhang Man until the agreed time passed. shadow. ?At this time, everyone didnt have mobile phones, so there was no way to contact Zhang Man, and there were no short videos in Moments to view. All we could do was sit and wait. Speaking of which, Haonan, the software you used yesterday was called fluent? Wu Yifan, who had been dazed just now, suddenly asked. "Yes." Chang Haonan nodded: "You should at least listen to it in class. Although we have not learned this software, we should have been introduced to it before." Ah? Is that so? Wu Yifans expression was a little confused. "No, I remember that computer simulation software was introduced in the design methodology course in my senior year. I had seen it in the senior''s book before." Zhou Shuwan also turned around and joined the topic: "Hao Hao Nan, youre afraid you didnt think we had learned it all when you were studying on your own, right? ?Chang Haonan rubbed the back of his head in embarrassment. He only roughly remembered that he had been exposed to fluent software during his undergraduate period, but he had completely forgotten how old he was. Sorry, sorry, Im late. I just went to the library to look for some information and didnt pay attention to the time. ?At this moment, Zhang Man, carrying a schoolbag and a huge cloth bag in his hand, finally appeared at the door, panting. Chang Haonan curled his lips. He never liked people who had no sense of time, but he didn''t say much: "Now that we''re all here, let''s get ready to start the next step." Well, regarding the improvement plan for this aircraft, I have found some design plans that can be used as a reference. I wonder if Brother Nan is interested in hearing about it. "ah?" ?Chang Haonan really didn''t expect such an incident. It seemed that the other party''s lateness was not entirely due to personal factors. "Since Brother Nan has analyzed the performance of the MiG-21 prototype yesterday, our next step should be to determine the general direction of improvement, right? Brother Nan?" Zhang Man raised his head again and faced Chang Hao Nan blinked. Yes, thats right. Chang Haonan was completely unmoved and just nodded. "The J-7, a copycat model of the MiG-21, is the main fighter aircraft that our country''s aviation industry department can provide to the air force in large quantities now, and even in the future, but in any case, it has been almost 40 years since the prototype was put into service. So my idea is to use the existing mature technology to improve the combat effectiveness of the improved model as much as possible within the capabilities of the aviation department. Having said this, Chang Haonan lowered his head and looked at the enamel water glass he had on hand, took a deep breath and continued: "The feeling of powerlessness we had when we faced the Nimitz and Independence at the beginning of this year cannot be repeated again. Even before his rebirth, even though many years had passed, Chang Haonan still remembered the anger and powerlessness he felt when he saw the news. (End of this chapter) Chapter 6 Arent you bullying honest people? Chapter 6 Arent you bullying an honest person? ?The other three people looked at Chang Haonan with his fists clenched. Of course they knew that the latter decided to make his coursework more difficult because of this incident. What they didnt know was that Chang Haonan almost became an air force pilot, but during the physical examination, it was found that his teeth were malocclusion, so he was dismissed. "But Haonan, if this is the case, it''s not just an aircraft design issue." Zhou Shuwan has been influenced by it at home since he was a child, and he understands nature better than others: "Based on the existing mature technology, we must also consider production Manufacturing issues, but we are still college students after all, and we have no way of knowing what the specific level of my countrys current aviation manufacturing technology is? Chang Haonan looked at Zhou Shuwan next to him and stood with his hands behind his desk: "From the beginning, I was not prepared to just make a design that could not be implemented." According to common sense, what Zhou Shuwan said is certainly correct. However, as a person who was reborn more than twenty years later, he himself went beyond common sense. In fact, at the very beginning, when it came to improving the J-7, the first thing Chang Haonan thought of was the FC1 Xiaolong fighter derived from the modified "Super 7" project. This aircraft was completely unrecognizable in appearance. There is no shadow of the original model. But after seeing the true performance of computers in this era yesterday, he realized that without supercomputing resources, it would be extremely difficult to design the DSI air inlet with an ordinary PC. Needless to say, other parts of the body have also been greatly modified. At the moment, the best aviation engine that can be produced independently in China is the turbojet 13F, which is really not enough to propel a third-generation fighter jet. There is no other way, the food must be eaten one bite at a time, and scientific research must be done step by step. The development of the aviation industry is not an overnight process. As he is still an undergraduate, he has limited resources and cannot maximize the efficiency of the system. ?At the same point in time in the previous life, Chang Haonan''s ambition was indeed to design a model that could equip the People''s Air Force to improve its combat effectiveness. But now that he has been resurrected and even has the help of the system, this J-7 improvement plan is of greater significance to him as a stepping stone. A stepping stone to a wider world. Therefore, in addition to showing a certain degree of advancement, the design plan must also be short, fast, and down-to-earth enough to be completed within the time specified in the course design assignment, and reflect one''s current overall understanding of the development of the aviation industry. Chang Haonan remembered that the teacher of his course was named Liu Hongbo. He was a very young professor. Shortly after the start of the next semester, he was seconded to participate in the airworthiness certification and technical improvement work of Y7-200A, which was later the MA60 passenger aircraft. . ?The time is just after the end of their current graduate student promotion process. So many of Professor Lius students also directly or indirectly participated in related work. They are all opportunities. What Chang Haonan needs most now is exactly this kind of opportunity. After determining the basic principles of the improvement plan, Zhang Man was the first to speak. "Brother Nan, I just checked some existing ideas for improving the MiG-21 or J-7 in the library." Zhang Man said, putting his schoolbag and cloth bag on the table, and then took out a lot of material. "The first is the improvement plan our country has already had, which is to replace the large delta wing of the MiG-21 with a double delta wing, reduce the average chord length of the wing, increase the aspect ratio, and focus on improving the aircraft''s mid- and low-altitude maneuverability. However, because The air intake has not been improved, so the nose cone still does not have enough space to accommodate the radar, so let alone beyond visual range, it does not even have all-weather combat capabilities. " ? Zhang Man pulled out a three-dimensional view of the J-7E and placed it in front of Chang Haonan - it was active equipment after all, and detailed design drawings were unavailable. Then he secretly glanced at the latter''s expression with his peripheral vision. ?After discovering that there was no change, Zhang Man decisively pushed the drawing aside and took out another document. This one was much more detailed and even contained a lot of specific data. "The second one is the MiG Design Bureau''s own improvement, that is, the MiG 21MF and MiG 21 Bis. While the overall aerodynamic layout remains unchanged, the body is enlarged, the intake nose cone is increased, and a radar is installed inside. However, The price is that mobility will be greatly reduced. I think this idea is good. Zhou Shuwan stood up and looked at the drawings on the table. "In the late 1980s, we also designed a J-7C with a similar idea, but in the end only a dozen were produced. I think we can improve it on this basis, further increase the size of the nose cone, and add the current radar The technology is definitely stronger than it was back then, and it is even possible to launch radar-guided air-to-air missiles like the PL-4. In 1996, the Thunderbolt 4 had already been discontinued, and the Thunderbolt 11 was still in the difficult process of imitation. However, this did not prevent students from the Aeronautical and Astronautical University from dreaming of a new weapon with a longer range. ??However, Zhang Man next to him confirmed through Chang Haonan''s expression that this was not the idea the other party wanted when the latter was only halfway through speaking. Therefore, as soon as Zhou Shuwan finished speaking, she immediately expressed the opposite opinion: "I think this is not in line with the idea that Brother Nan just put forward. There are too few changes to the aircraft. Choosing this option really looks down on us. Brother Nans ability. And Zhou Shuwan, who was still in high spirits just now, was directly denied by his goddess without any shame, and even got involved in the recognition of Chang Haonan''s ability, so he was embarrassed on the spot and looked at Zhang Haonan. Man, then looked at Chang Haonan who frowned slightly next to him. Originally, when Zhang Man took out a lot of information and started sorting out his ideas, Chang Haonan''s impression of her had actually improved greatly. Not to mention whether it was useful, but at least she showed that she would take the initiative to help you with things. I don''t mean to stand by and watch. But her subsequent words and deeds quickly destroyed the positive image she had finally built up in Chang Haonan''s mind. You should know that although this big assignment is a group of four people, when it comes to grading, not everyone in the group will get the same grade. Instead, the group assignment will be graded based on the contribution of each member to the work. float. Chang Haonan, who has been identified as the big player, and Wu Yifan, who is already ready to paddle and does not care about the results, naturally rank at the top and bottom of the contribution rankings. Therefore, the only room for discussion is who ranks between Zhang Man and Zhou Shuwan. two. Whether it''s flattering or charming, these are all part of a person''s abilities. Chang Haonan himself is not good at this, but he will never look down on people who are good at it. As for the emotional problems between Zhou Shuwan and Zhang Man, that has nothing to do with him. Its okay to be an outsider. But while Zhang Man was flattering him by observing his words, he also didn''t forget to step on Zhou Shuwan secretly. This nature was different. ??If Chang Haonan directly expressed his agreement with Zhang Man''s idea at this time, it would be equivalent to being used as a weapon by the latter. It is true that Zhou Shuwan is an honest person, but an honest person cannot be bullied like this. This will affect unity. (End of this chapter) Chapter 7 The plan is finalized【Kneel down and beg to read】 Chapter 7 The plan is finalized [Kneel down and beg to read] On the contrary, the reason I dont choose this option is that it changes too much. Chang Haonan''s words made Zhang Man''s smile freeze on his face. "Remember what I just said? It needs to be based on existing mature technology. Although this enlarged version of the solution does not seem to change much in appearance, if it is implemented in manufacturing, the entire body will have to change, and a stronger aero engine will be needed. , this is not in line with our principles. Zhou Shuwan''s face next to him finally looked a little better. He didn''t care much about his idea being rejected, but he was just worried that Chang Haonan really misunderstood him. "After all, we have received some professional training. When we see a design drawing, we can''t just rely on intuition to see the appearance like we did when we were freshmen. We should be able to think of something deeper." After Chang Haonan said this, he looked up. Zhang Man glanced across from him. "Hey, I can see something profound. It''s not like you don''t know. I haven''t passed 80 points in any professional courses except English. For technical matters, just listen to Nan Shen. Zhang Man, what are you doing? Is there any other plan?" ??Wu Yifan''s words were just right to ease the situation, which not only gave Zhang Man a step down, but also prevented her and Chang Haonan from becoming too tense. ?After being beaten a little by Chang Haonan, Zhang Man quickly returned to his original bright and bright expression, as if nothing had happened, but he did not make any small moves and just pulled out the last piece of information. Actually, compared with the previous two real materials, what Zhang Man showed this time was just two photos. "There is another one here. It is a technical verification aircraft of the MiG Design Bureau. It is called Ye8. There is no detailed information. From the photo, it seems that the nose air intake has been directly changed to the belly air intake, and additional A pair of front wings Before Zhang Man finished speaking, Chang Haonan directly picked up one of the photos and looked at it. The Ye8 aircraft itself has more changes than the MiG-21, and also involves the issue of three-wing surface control. It is also not a design that can be completed in a short time, but the pictures on the table helped him recall a kind of J-7 The unpopular improved model - J-7FS. An improved design that changes the nose air inlet of the J-7 to a mandibular air inlet, but leaves the rest of the fuselage, especially the rear fuselage, unchanged. Since this project was completely self-funded by 611 Institute and had no initial users, and the research on the mandibular air inlet was not in-depth enough at that time, only one prototype was built for flight testing and then nothing happened. ?However, Chang Haonan knew that the potential of this improved model was actually quite large. ??More importantly, the research on the mandibular air inlet itself is of great significance. Because future air-breathing hypersonic aircraft will also use similar but more advanced air inlets. ? Before Chang Haonan was reborn, he was preparing to test a hypersonic missile design using a mandibular three-dimensional inverted inlet at Base 29. According to the timeline, this modification should not have been released in 1996, and it may not have even started. Improve the air inlet design of the J-7 aircraft so that it can adapt to larger-sized radars and ensure that the flight performance is at least not weaker than the original model. The specific idea is to change the nose inlet to a dual-module mandibular inlet to free up space in the nose for the radome. At the same time, the radome can be used as a conical front body and integrated with the air inlet to achieve The first-level compression of the flow is a downward-directed external compression. The air inlet achieves two-stage compression of the airflow, which is an internal compression method directed toward both sides and upwards, while the rest of the body remains unchanged. " As Chang Haonans ideas continued to improve in his mind, the system also gave new prompts: Consumption of science and technology points for improving the project: 8 points, 80 points for directly giving project results. Are you sure to carry out the J-7 aircraft inlet improvement project? "Confirm!" Almost the same as yesterday, the moment after Chang Haonan confirmed the project, a large amount of information appeared in his memory almost in the form of imprints. Although he had not been exposed to a lot of knowledge for many years, But it feels as if it has been used thousands of times before. In other words, the system can not only provide specific steps to complete a project, but can even improve Chang Haonan''s related capabilities at the same time. ? And this ability will not disappear with the completion of the project. For example, the ability he acquired yesterday to skillfully operate the fluid dynamics simulation software of this era and directly write programs in Fortran language to solve partial differential equations still exists. ? It''s just that if you want to achieve the inhuman operation with incredible efficiency like yesterday, you still have to rely on the buff provided by the system for the ongoing project. "Haonan, are you going to choose this one?" Zhou Shuwan also took another photo and looked at it: "But isn''t the design change of this three-wing surface even bigger?" No, its just that the idea is similar to this. Chang Haonan shook his head Ye8s plan has the air inlet designed in the belly of the fuselage, which has resulted in a major change in the entire body structure. We can advance the air inlet to a position almost flush with the bottom of the nose and design a mandibular air inlet. Chang Haonan took a pen and paper and drew a simple diagram, and at the same time expressed his design ideas in as simple and popular a way as possible. "This can ensure that the length of the air intake is close to the original design, and the part after the 1 cross-section of the body does not need to be modified, and we can also use the radome as part of the air intake mechanism for the overall design, consisting of a conical radome Pre-compress the gas to improve the overall air intake performance." The reason why these words are wasted is naturally not due to Chang Haonan''s attribute of being a teacher. Rather, according to the design method provided by the system, one first needs to manually determine the half-cone angle of a cone-shaped precursor, and then the corresponding inlet design can be calculated. optimal solution. In other words, the inlet/cone front body combinations designed under different half-cone angles are quite different. ?However, Chang Haonan does not know how many half-cone angle corresponding design solutions will work best after being installed on the J-7. In the field of design, choosing initial values ??depends largely on experience, but Chang Haonan, as a military screw before his rebirth, had no experience in mastering the overall design of a model... So he needs to make several different plans, simulate their performance when combined with the J-7 body, and then explore the rules, and finally find the best performance option. ?This process involves a lot of work, but a lot of it is actually repetitive work with little innovation, so it can be completed by three other people, while Chang Haonan himself concentrates on the most critical part. Firstly, this can improve efficiency, and secondly, it is in line with his vision of the future use of the system, so it can be regarded as a preview. This way the workload is indeed much smaller, and many parts can even be used in common with the original model. ?Zhou Shuwan hammered his fist on the palm of his other hand, making a crisp sound: "Haonan, please tell me what to do next. We will all obey your command!" Thanks to [asking jung] for the 1,000 starting coins Thanks to [Tongle Piti] for the 500 starting coins and 1 monthly pass Thanks to [fhtvbn] for the 2 monthly passes (End of this chapter) Chapter 8 A whole new approach to design! 【Kneel down and beg to read】 Chapter 8 A new design method! Kneel down and beg to read ?At this moment, the classroom door was pushed open, and four more people walked in from the outside. This teaching building is shared by their entire School of Aeronautical Science and Engineering, so it is not surprising that there are other students in the classroom. If it is before the end of the semester, there may even be twenty or thirty people in the same classroom at the same time, so they are concentrating on their research. The four people involved in the plan didn''t care at all. Haonan? The leader of the four people who just came in was Chang Haonans upper bunk Huang Zhiqiang. Naturally, he recognized the former at a glance: You are also doing course design here? In fact, Huang Zhiqiang came here specially. Since the beginning of the semester in March this year, Chang Haonan has been bitter and resentful. Almost everyone in the dormitory knows that he wants to design a fighter jet. ??But for Huang Zhiqiang, Chang Haonan in that state is not worth worrying about. He knows very well where the opponent''s upper limit is, and a person''s ability will not be improved because of anger. And he didn''t think that was anything to be angry about. ?However, Chang Haonan''s uncharacteristically light-hearted attitude this morning made him feel a little uneasy, so he decided to "reconnaissance" to see how far the former had achieved. "Yes, Lao Liu''s class is not sloppy..." Chang Haonan did not raise his head, but continued to draw a sketch of the air inlet and the nose part on the paper, preparing to tell the other three people what they needed to do. matter. In addition to the 10 credits of the aircraft design course, which is second only to the graduation project and will greatly affect the average grade point, Liu Hongbo will also invite many big names in the college to serve as judges in the defense session of the final course design. . ?These people are often also the judges during the admission interviews for postgraduate students who are exempt from examination. There is usually only about a month between the two events. So any student who is interested in further study must devote 120% of his energy to this course. The four people who just came in put the tools and books they brought on a table not far away, and then Huang Zhiqiang, the leader, slowly walked towards Chang Haonan: "By the way, how far have you progressed?" The design plan has just been selected, so its early. ?Chang Haonan still didnt look up. ??He really had no impression of Huang Zhiqiang, and he didn''t take him seriously at all. What I want to say next are just some preliminary parts of the design work, so I dont care about being heard by others. And whether you can understand it or not is just a matter of words! Zhang Man, on the other hand, was very wary of the approaching Huang Zhiqiang, and quietly took a step to the side, blocking the latter a few steps away from the table. ? Huang Zhiqiang tried several times, but because the aisle between the tables and chairs was so narrow, he was ultimately unable to get over the obstruction. "cut" Although there was no way to take another step forward, the petite Zhang Man could not block his view. Huang Zhiqiang easily saw the two black and white photos on the table and the sketch that Chang Haonan was drawing by hand, so of course I think this is preparation for reproducing the design through photos. ?This immediately made him feel relieved again, he shook his head and turned to leave. "Sure enough, big trash can only teach little trash. In the end, you have to copy it from the Soviets. Besides, aircraft design is not a sketch. What can you design based on two photos?" Huang Zhiqiang thought to himself, and sighed that he had just Some are too unfounded. At this time, Chang Haonan didn''t know that he had been scolded by others. He had already finished drawing two schematic diagrams and took another piece of paper to list the steps on it. The other three people also quickly took out their notebooks and pens to take notes. They still remember the way the second-year doctoral student whose mentor was an academician took notes obediently in front of Chang Haonan yesterday. "The process is roughly like this. Because we are designing the air inlet and the front fuselage in an integrated manner, I will first select five different design initial values, which are the cone front body, or the half cone of the radome. "Angle." Chang Haonan pointed to the tip of the radome on the sketch and marked an symbol on it: "What the three of you have to do is help me determine the design parameters corresponding to each initial value." ?More than twenty years later, this process can be completely handed over to computers, but at this time, at least under their current conditions, many things still have to be calculated by hand, especially the relevant engineering manuals. Zhou Shuwan and the other three nodded like chickens pecking at rice. Here are the steps. Ill explain them first. If you dont understand anything, be sure to ask. ?Chang Haonan said and wrote (1) on the paper. The first step is to set the cone precursor busbar, fix the initialization half cone angle and perform dimensionlessization according to the cone length. "The second step is for me to do. Average the flow field Mach number in the area near the inlet entrance as the baseline flow field design to calculate the Mach number. Because this is still an airplane after all, so the subsequent design points should be Choose around Mach 1.6, not too high. The third step is to take the intersection of the three-dimensional internal transformation line of the inlet duct in the longitudinal symmetry plane of the cone precursor and the generatrix of the cone precursor as the installation positioning point, and calculate the axis of the incident inner cone shock wave in the inlet duct and the relationship between the axis of the cone precursor and the cone precursor The angle between the axes is used as the installation angle of the air inlet, and the specific calculation method is..." In the fourth step, the shape of the upper lip of the inlet is obtained by the intersection of the inner cone shock wave incident on the inlet and the lower surface of the cone precursor, and the shape of the inner lip is obtained by the intersection of the incident inner cone shock wave of the inlet and the lower surface of the cone precursor. The intersection of the longitudinal symmetry planes gives..." The fifth step is also done by me. Based on the three-dimensional shape of the inlet entrance, streamline tracing is performed in the selected reference flow field to generate the internal profile of the inlet..." "The air inlet calculated according to these five steps is theoretically the optimal design at the half-cone angle. As for which of these designs is more effective after being installed on the MiG-21 fuselage, we need to do what we did yesterday. Im going to do a CFD simulation. When the time comes, Ill run out the results, and you guys will be responsible for organizing the data and making charts, so we should be able to find the optimal solution very intuitively. ?Of course, among the steps given by the system, there is a process of going to the wind tunnel at the end, but Chang Haonan simply ignored it. ??If he could directly apply for resources like a supersonic wind tunnel, would he still be able to modify the J-7 here with three undergraduates? ?After Chang Haonan wrote the last step on the paper, he threw the pen aside, stood up and looked at the three teammates in front of him: "Do you understand?" ?There was a moment of silence "Well...I understand some of it, but I''m not sure what I didn''t understand about the parts I didn''t understand." Zhou Shuwan scratched his head with a troubled expression: "Let''s go to the library first, and then we''ll start calculating first. If I cant figure it out, Ill ask you again. "Okay." Chang Haonan nodded, and then packed his things on the table into his bag. Zhou Shuwan helped Zhang Man sort out the large amount of information she brought almost out of habit. The four of them Get up and leave quickly. ??This classroom is not very large, and Chang Haonan did not deliberately lower his voice when he spoke, so the four people sitting next to him, Huang Zhiqiang, also heard the content clearly. Brother Qiang, did you hear what Chang Haonan and the others were discussing just now? One of them approached Huang Zhiqiang and asked in a low voice: What do you mean, they seem to have some ideas? This question made Huang Zhiqiang frown and look at the teammate next to him somewhat unhappily. He didnt understand either! (End of this chapter) Chapter 9 There is also a gap between academic mas Chapter 9 There is also a gap between top academics! When Chang Haonan first started talking, Huang Zhiqiang didn''t actually pay attention, but soon he realized that the other party was definitely not someone who had "just selected a design plan", but had already determined the specific design steps and calculation ideas. . As for the subsequent calculation steps, since Chang Haonan explained it with his own hand-drawn sketches, Huang Zhiqiang, who could not see the pictures, was naturally completely confused. Not only that, he has never even heard of many of the terms Chang Haonan said! "I think some of them are just talking nonsense..." Another person in the group whispered: "I have never heard of a lot of things he said in class." After hearing these words, Huang Zhiqiang''s face finally looked a little better. I only heard them talking about things like the cone front body and the air inlet, which seems to be somewhat interesting... Liu Ran was sitting slightly closer to Chang Haonan and the others, but he still heard a few key words. Hearing this sentence, Huang Zhiqiang suddenly remembered that when he was reading the English design manual before, he seemed to have seen similar content in it. ?Thinking of this, he quickly took the book out of his bag and quickly flipped through the pages. Holy shit, Brother Qiang is still awesome, its all in English, I can understand this. But at this time, Huang Zhiqiang turned a deaf ear to the compliments around him, and just lowered his head and quickly flipped through the book. An integrated design method of finlet and conical fore body Thats it! Huang Zhiqiang quickly turned to that part of the book based on his memory. "The integrated design method of the inlet and cone front body was first applied by Webster and Bucy in the design of supersonic cruise missiles and achieved very good results. However, the design method is still not mature enough and requires a lot of computer simulation. Simulation is very difficult..." Seeing this, Huang Zhiqiang''s eyes widened instantly and his pupils trembled. He quickly turned to the next pagethere were some basic design ideas and steps written there. ?After spending a few minutes translating the awkward and difficult English in the book, Huang Zhiqiang realized that the content above was probably consistent with what Chang Haonan just said. ?Obviously the other party is not making nonsense. "How is it possible?" Huang Zhiqiang''s breathing suddenly became heavy, and he said to himself in an unbelievable tone. This is a design idea that is said to be very difficult and immature in design manuals from the United States! When Huang Zhiqiang saw it at the time, he thought that no one in the whole of China would have thought of such an ingenious design method, and probably no one would have the ability to conduct the computer simulation required for such a design. ??But just now, Chang Haonan, an ordinary undergraduate student at Beijing University of Aeronautics and Astronautics, explained the design process very clearly, and it was even more complete than the content in the manual! And at the end it seemed to be mentioned that he had conducted a CFD simulation yesterday? Huang Zhiqiang is naturally familiar with such computer-aided design tools and probably knows how much work is involved. "This...this is impossible..." Huang Zhiqiang muttered to himself again with trembling lips, and then turned to look in the direction where Chang Haonan and the other four left just now, his eyes full of doubt. But when he focused his attention back on the book again, he suddenly became happy again - the last sentence in the book said that there is currently no very accurate way to obtain the capture area of ??the air inlet and the three-dimensional dimensions of the entrance in the integrated design. shape, so this step still relies heavily on experience. It is obviously impossible for Chang Haonan and other undergraduates to have experience in this field. So even if you design a similar shape, it can only be regarded as a semi-finished product at best, or you can just draw an air intake structure and it will not get high scores. Huang Zhiqiang knows very well that what Professor Liu Hongbo hates most are students who are clearly lacking in ability and refuse to keep their feet on the ground. Forget it, lets finish our design first. Huang Zhiqiang took a few deep breaths, forced himself to be calm, and then took out various materials and tools from his bag. ? Their team is planning to design a twin-buoy light seaplane based on the Pilatus PC-6 aircraft, which can be used for tourism, fishery management, water patrol and other tasks. The reason why I chose this was mainly because the book Huang Zhiqiang got contained an identical design case, and the calculation steps only needed to be slightly refined. ?According to his idea, this design should be enough to stand out from a bunch of works that are essentially just semi-finished products or aircraft models. The other side. Noise is naturally prohibited in the reading area of ??the library, but the library of Beijing University of Aeronautics and Astronautics has set up some separate small classrooms around the reading area, where meetings or group discussions can be held. At this time, Chang Haonan and the four of them were Sitting inside, there are various engineering calculation manuals from the library on the table - in this era when even calculators are not very popular, various empirical coefficients in engineering calculations, and even approximate values ??obtained by commonly used square root operations You need to look up books to get the solution. ?One afternoon passed, and under the guidance of Chang Haonan, except for Wu Yifan, who had a very weak foundation, the other two people finally managed to master the calculation method of the entire process. "I..." Wu Yifan scratched his head and felt a little embarrassed that he could not play his role: "Well, you just leave all the writing and drawing work to me. I am really not good at calculating these things." In this era, even graduation thesis has to be written by hand, let alone this kind of course design, so the final design plan and design instructions must be implemented on paper, and Wu Yifan happens to be able to write beautifully with a pen. ?This is one of the reasons why he has hardly studied since his freshman year but has never failed a class. ?Chang Haonans own workload is determined, so the remaining work content is distributed among the other three people. So he looked to Zhou Shuwan and Zhang Man for advice, and the latter two said there was no problem. "It''s already very late today. Do you want to go out for a meal? I''ll treat you." Wu Yifan looked out the window at the darkening sky and touched his stomach. All three of them looked at Chang Haonan. Okay, thats it for today, lets go eat. Chang Haonan also knows that too much is too little, and besides, there are still more than three weeks until the course design deadline, so there is really no need to worry. More importantly, he was hungry himself. ?Ten minutes later, four people appeared in a roast duck restaurant next to the school. "Speaking of which, Brother Nan, why didn''t you pay attention when you were explaining your ideas to us in the afternoon? Huang Zhiqiang and the others have been eavesdropping, and I found out." After ordering, Zhang Man asked with an unhappy look on his face: "Those people are really outrageous." "Eavesdropping, you have to be able to understand it!" Chang Haonan was immediately happy: "I told you directly in front of the sketch, did you understand it at that time?" "I..." Zhang Man showed a somewhat embarrassed expression: "I don''t understand, but you are different. You are all top students. What if he understands it and then copies our design?" "Huh..." Chang Haonan shook his head in an incomprehensible manner and replied slowly: "There are also gaps between top academics." (End of this chapter) Chapter 10 J-8 vs. F22? Chapter 10 J-8 versus F22? ?Although Chang Haonan himself just said it casually out of emotion, for the other three people, this was simply pretending to be invisible. There was a burst of applause and cheers in the private room. Nan Shen is awesome! Nan Shen Haki! ?Chang Haonan quickly reached out and pressed it down to show his low profile. In fact, in less than two days from his rebirth yesterday to today, he has found that not only is he physically much younger, but his mentality seems to be closer to that of a twenty-year-old than a forty-year-old. "I''m really young again..." Chang Haonan looked at his wrinkle-free hands and finally had a sense of reality about rebirth: "Then go and make up for those regrets, whether it''s the country''s or your own. of." At this time, Zhou Shuwan suddenly reached out and patted him: "Nan Shen, don''t think about curriculum design while eating. The development and construction of the army does not miss a meal." Chang Haonan came to his senses and realized that the roast duck had already been served. Obviously, the other party thought he was still thinking about the plane. ??If there is any advantage in the 1990s compared to more than 20 years later, it is probably that the Beijing roast duck of this era is generally not as bad as it was later. The taste of any restaurant can be guaranteed. ?Of course, the price is really exaggerated. It is basically difficult for people like Chang Haonan, whose average monthly living expenses are less than 200 yuan, to afford it. ?The four of them were chatting while eating, and the content was naturally mainly about various anecdotes and gossip. Chang Haonan just listened most of the time, and only rarely would he interject. After all, these are just things that happened in the past for the other three people, but they are already quite distant memories for him. ?At a certain moment when the four of them were silent, Chang Haonan clearly heard the conversation coming from the private room next door. Hey, have you heard about it? The new generation fighter jet from the United States, the F22, seems to be about to make its first flight. One sentence instantly attracted the attention of Chang Haonan and Zhou Shuwan. ??And since the two big guys in the group were not ready to continue chatting, Zhang Man and Wu Yifan naturally did not continue talking. Isnt it several years since its first flight? Another slightly deeper voice said. That is the prototype YF22. It is said that the one that will fly for the first time next year is the mass-produced F22. I estimate that it will be put into service soon. A third, somewhat sharp voice explained. "Well, then... looking at the situation at the beginning of this year, we can''t even deal with the third-generation fighter jets F14 and F18. If this new generation of fighter jets enters service, wouldn''t it be... that the gap is even bigger?" It was the deep voice that spoke again. person, but this time there was some anxiety in his tone. Should our countrys latest fighter jet be the J-7E from 1990? "Yes, but that plane doesn''t even have a radar. It can only fight during the day, so what''s the use?" The first person who spoke just now burped after saying: "The only ones who can fight beyond visual range are from the old school. The Su-27 my brother bought was too little, and the J-8B was not much either. Then there was a sigh. "Let me tell you, if the J-8-3 can be put into service in two years, with its high-altitude and high-speed capabilities and new radar, it may not be able to compete with the new American aircraft!" Just dream, no matter how much improvements are made to second-generation machines, if you can barely beat a dozen third-generation machines, youll be considered worthy. "But... even if we can fight one more, this is how things went back then. From the War of Resistance to the War of Resistance to the Aid to Korea, we never took advantage of our equipment." "The Air Force is different after all. During the War of Resistance Against the United States and the Aid to Korea, our MiG-15s fought F86s. Although The pilots are inexperienced, but at least the aircraft are of the same generation. The United States even has equipment like the F9F that is not as good as ours." ?Two days ago, Chang Haonan was still in an era where the WS15 had been installed on the J-20 for test flights. At this time, he suddenly heard the talk of the J-8 fighting the F22. There was even a vague sense of time travel. It took him a moment to realize that this was not a trance. "How come our country''s aircraft manufacturers can''t even build a third-generation aircraft? After spending so much taxpayers'' money, the pilots still have to fly the J-7 to compete with others with bayonets. What a coward! What a bunch of losers..." Thats right, it was a pity that the F16 was not introduced back then. Then F16/J79 is just a monkey version. Its no pity. Americans are not good at all ??The voices chatting next door were already slightly drunk. ?Chang Haonan saw Zhou Shuwan''s fist clenched suddenly, and then slowly loosened. ??The words of the people next door were very unpleasant, but from their conversation it was clear that they did not hate the Kuomintang, they were just disappointed or even despaired because they saw the huge gap between them and their powerful enemy. ??Although the topic there quickly switched to the upcoming Atlanta Olympics, the atmosphere among the four Chang Haonan was still somewhat affected by this. Nan Shen, you said that if the F22 enters service immediately, what measures can we take to deal with it? Zhou Shuwan drank the beer in the cup in one gulp and turned to Chang Haonan and asked. "It''s not that fast." Chang Haonan shook his head and said in a very confident tone: "The difference between the YF22 and the F22 is very big, and after all, it is a new generation of fighter jets. Even the old Americans have to learn a lot of things little by little. " Historically, the F22 did not officially enter service until 2005. At this time, China''s military industry had actually passed its darkest moment. However, in the nearly ten years before that, the Raptor in a test flight state had put great pressure on China. Indeed, a little bit is a lot. Sigh I hope so. Zhou Shuwan sighed. Dont worry, there will be, there will be. Chang Haonan patted the other partys shoulder: So arent we working hard for this? Wu Yifan and Zhang Man did not participate in the discussion throughout the whole process. The former really did not understand these matters and could not intervene, while the latter was completely unable to empathize with the emotions of Chang Haonan and Zhou Shuwan. Zhang Mans parents are not well-educated, but they have been doing business since the late 1980s, and the family is not short of money. However, in this era, being rich does not mean being knowledgeable. Therefore, from the first day she went to college, she only thought about one thing - how to use the platform of Beijing Airlines to climb higher and see a wider world. In the world, it is best to go abroad. But studying abroad, at least in 1996, was not a matter of having enough money. Of course she could accept it at her own expense, but if she didn''t have the means, she wouldn''t be able to spend it even if she had money. That''s why Zhang Man chose to cling to Zhou Shuwan''s lap in the past few years, just to get good grades and find ways to get recommendation letters from the school. She could not understand why some people would view the United States as an enemy. ?Of course, although he thinks so in his heart, Zhang Man will certainly not be stupid enough to say it. He even nodded in agreement from time to time when Chang Haonan and Zhou Shuwan were talking. In the past few years, she had completely mastered Zhou Shuwan in this way. Chang Haonan certainly seemed more difficult to deal with, but it was already the second semester of his junior year anyway, and Zhang Man only needed to ensure that he scored 10 credits in aircraft design. Just get good grades in the course. The time to decide whether to graduate or study abroad is between the end of your junior year and the beginning of your senior year. Therefore, the scores for the graduation project with the highest credits in your senior year and several other courses are not important. (End of this chapter) Chapter 11 Senior sister suspects that life is over [please read] Chapter 11 The senior sister suspects that she is alive [seeking for follow-up reading] In the first half of 1996, even the security situation in Beijing was not very good, so they did not eat too late and left the hotel before eight o''clock. Wu Yifan went to the house he rented off campus, and the other three Naturally, people go back to school together. In university dormitories in the 1990s, entertainment activities were far less abundant. Chang Haonan remembers that there were a few roommates in his dormitory who particularly liked playing cards. Except for a period of time before the exam, they basically had to play cards every night. So he did not choose to go back to the dormitory directly. Instead, he went to the public phone booth and called home. Chang Haonan almost cried when he heard the voices of his parents when they were young again. ?In order to prevent the second elder from hearing anything unusual, he hung up the phone without chatting for too long, saying that he was going back to the dormitory to rest. ?It took almost ten minutes for Chang Haonan to finally calm down and then decided to go to the library again. ?This time it is not for course design, but there are several newspaper racks in the rest area of ??the library, which will provide the latest newspapers and magazines. Having just been reborn, he has basically no memory of recent events, and there is no developed Internet in this era, so that is the most convenient place to get news. A few minutes later, Chang Haonan moved a stack of newspapers and sat on the bench next to him. ??He only needs to know a general idea of ??something when reading the news, so that it doesnt seem strange to know nothing. Therefore, he gulps down the news and flips through it very quickly. The aftermath of the incident at the beginning of the year is still lingering, and many news reports are still related to it. Some military publications are comparing the military power between China and the United States. In this era, the results naturally need not be said. Multiple shootings occurred in succession last month. The last module of Mir, the Nature module, was launched into orbit and successfully docked, completing all construction work of the space station. They are all very contemporary content. ?Just when Chang Haonan saw the crash of Valuje Air Flight 592, a familiar voice suddenly came from behind him. Junior Chang? You look very relaxed today? He turned around and found that it was Yao Mengna, the senior sister he had met in the computer room that day. "It''s about combining work and rest. Students in our new era have to read books about sages and see things outside the window." Chang Haonan looked up at his watch and found that it was almost 10:30 pm when the library closed, so he stood up and turned around. He put the books and newspapers back into their places one by one, then put on his bag and left the library with Yao Mengna. ?The total distance from the newspaper area to the library entrance was less than 20 meters, and Yao Mengna secretly glanced at Chang Haonan no less than five times. She came here today to find some information about CFD simulation. A project being carried out by the research team was not going well. She and two other people tried for a long time but failed to find an efficient calculation method. So when she saw Chang Haonan just now, Yao Mengna almost subconsciously walked over and said hello. Subconsciously, she thought that this junior undergraduate student might be able to solve this problem. But when the question came to her lips, Yao Mengna still hesitated. First of all, the problem this time was much more complicated than the previous simulation that Chang Haonan conducted in the computer room. Secondly... Chang Haonan really caused her huge psychological trauma last time. ?However, in the end, she decided to temporarily put aside her own dignity issues for the sake of the research group''s project. Junior, can I ask you a question related to computational fluid dynamics? After hearing this question, Chang Haonans first reaction was disappointment. ??He originally thought that Yao Mengna noticed his handsome appearance and kept peeking over here, but it turned out that the other party was attracted by his inner wisdom. Why cant it be more superficial? ?However, he nodded calmly: "Okay, let''s talk." "I am studying an aeroelastic instability problem that considers large geometric deformation factors for the aircraft wing, but it is very inefficient to solve the N-S equation and the Euler equation using a similar idea to your day, and we have tried several results, The error is also relatively large..." "Wait a minute." Upon hearing this, Chang Haonan raised his hand and interrupted Yao Mengna''s question: "What kind of wings are they?" "Uh..." Yao Mengna was stunned: "I just want to ask about the simulation idea. Does this have a big impact?" "There is a huge difference between a delta wing, a swept wing and a straight wing with a high aspect ratio." Chang Haonan replied expressionlessly: "Of course your research group may have confidential topics, if it''s not convenient to tell me... " "There''s nothing inconvenient about making the project public!" Yao Mengna clearly understood what Chang Haonan meant, and immediately didn''t care whether she was a junior or not. It is a straight wing with a large aspect ratio. We also tried to improve the Dewey-Hodges equation, but the results were not ideal either. "That''s normal." Chang Haonan shrugged, as if it were a matter of course: "The aeroelastic instability problem of a large aspect ratio straight wing is most likely a flutter problem. Computational Fluid Dynamics (CFD)/Computational Fluid Dynamics (CFD) The structural mechanics (CSD) coupling method is not suitable for this aspect of analysis. Wing flutter has become a fatal problem almost since the birth of aircraft. It is a self-excited vibration of the structure caused by the interaction of aerodynamic force, elastic restoring force and inertial force. That is to say, once flutter occurs, it is a self-continuous movement without the action of external forces, and the vibration amplitude will become more and more severe, usually causing irreversible structural damage to the aircraft within a few cycles. ? This problem is especially obvious on large aspect ratio wings. "This..." Yao Mengna opened her red lips slightly and looked at Chang Haonan beside her. She thought about countless possibilities, but she never expected that she would go in the wrong direction from the beginning. And such a mistake was pointed out by an undergraduate almost without thinking. ?Her entire worldview was almost shaken. For a moment, Yao Mengna even began to doubt whether she had ever attended this university. Chang Haonan quickly spoke again: "The large aspect ratio wing can be regarded as a beam wing in structure, so the unsteady aerodynamic force can be calculated by the dipole grid method based on subsonic speed. According to the linearization theory, the unsteady linear small perturbation velocity potential One of the basic solutions to the equation is the acceleration potential dipole. Therefore, for a wing that vibrates simply harmoniously in the airflow, an acceleration potential dipole p/p can be distributed on the wing. At this time, the normal force on the wing is The washing velocity amplitude must satisfy the corresponding vibration boundary conditions, so that p can be solved. Of course, this method is only suitable for linear problems. Chang Haonan, who noticed Yao Mengna stopped, also stopped and looked back at her: "Do you understand?" This tone again Yao Mengna''s breathing suddenly became heavy. His fists are hardened. but If you are not as skilled as others, you will be at a disadvantage. She finally chose to reconcile with herself. I understand, since we have to use the dipole grid method, would it be better to use the MSC.NASTRAN software? Yao Mengna was able to deeply participate in the big project of the research group in the second year of her Ph.D., so she is certainly not an ordinary person. Before, she was just the tip of the iceberg. Besides, the dipole grid method is not a new theory. Now that she is awakened, she quickly understands it. understand Chang Haonans meaning. She felt that she should have found a way. It seems that my college experience has not been in vain... Yao Mengna comforted herself in her heart. However, Chang Haonan''s next sentence poured cold water on her newly ignited hope: "The default MSC.NASTRAN should not be easy to use. If you really want to do it well, I''m afraid you need to modify it with DAMP language rules. The solution sequence provided within the software can only be developed through secondary development, but if I cant see the actual problem, I probably cant tell you anything more specific. ?Yao Mengna looked up at the bright moon in the sky. Although it was already late May, she felt that her mood could be described in a lyric. ?Snowflakes are falling and the north wind is blowing ?The world is vast~~~ (End of this chapter) Chapter 12 Money making ability is also very important Chapter 12 Money making ability is also very important Chang Haonan actually had few classes in this major by the second semester of his junior year, so although the next day was a Monday, he still had half a day free in the afternoon. Zhou Shuwan and Zhang Man even skipped a lesson in the morning and calculated the design plan corresponding to the half-cone angle of the first precursor in the library. Therefore, after class, Chang Haonan went to the cafeteria for a simple After eating two mouthfuls of food, I took the calculation results and the student ID cards of four people and went straight to the computer room. However, things did not go as smoothly as Chang Haonan imagined. The next task is not difficult for him, but it is not easy for computers in this era. Especially the fifth step of the design work, which is to generate the internal profile of the air inlet, needs to be completely done by the computer. . So after he spent 4 hours on the machine today, he finally built the nose model of the first plan, without even having time to combine it with the fuselage. ??And the capacity of the two floppy disks that Yao Mengna lent them was already running low. After all, the capacity of each disk was only 2.88MB, and two of the project files would be full. "When I have resources in the future, I must get the USB flash drive out in advance. It''s too troublesome..." Chang Haonan, who was politely asked out of the computer room by the management teacher, shook his head and thought to himself. ??While having dinner in the cafeteria, Chang Haonan told the other three people about the situation. ?There is no problem in completing it before the deadline, but Zhang Man and Zhou Shuwan dont have to work so hard. Accordingly, considering that the time from completion of the design plan to delivery is very short, Wu Yifan, who is responsible for the text, needs to start early and complete the design work in parallel with Chang Haonan. ?Of course, the latter has the final say on what to write and how to write. Wu Yifan only needs to be a ruthless writing and drawing machine. ??While Chang Haonan was eating and assigning tasks, Yao Mengna was also chatting with two classmates in her laboratory about the progress of the project at another dining table not far from them. Although Chang Haonan made her doubt her life last night, as a doctor, her first reaction after encountering a problem she didn''t know was of course not to give up, so she went to the library today to borrow some information about the DAMP language and Occasionally. I also looked for some information on the Internet about the book on the pole grid method. Although it is definitely impossible to fully understand it in one day, I can at least confirm that this idea is worth trying. "Dipole grid method..." Sitting opposite Yao Mengna was a well-mannered boy with thick hair that didn''t look like a doctor: "Junior sister, are you really sure? Although the CFD/CSD coupling method we used before was very inefficient, After constantly revising the method, the accuracy has actually been continuously improved. When the project time was already over half, I rashly started over from scratch..." Fang Bo, we all know that there is no future in continuing to make small repairs according to the original idea. Yao Mengna put her chopsticks on the dinner plate, raised her head and looked at the boy named Fang Zhen in front of her. Although the accuracy is improved by 15-20% compared to the initial result, which can indeed be used to solve the problem, such a large amount of calculation requires manual parameter adjustment and calibration for each calculation example. In essence, it is to shoot the arrow first and then draw the target. It has no guiding significance for engineering practice. As scientific researchers, we should not be satisfied with this, especially now that I am sure that the dipole grid method is feasible, but we just need to learn some new things. Although Fang Zhen, who has a PhD in his third year, looks to be only one year older than Yao Mengna, who has a PhD in his second year, the latter skipped the master''s stage and studied directly for a doctorate, so Fang Zhen is actually much older. ?However, when it comes to matters related to research, let alone senior brother, even when facing mentor Yao Mengna, she will never give in easily. Seeing such a posture, another short and thin girl next to him quickly changed the topic: "Speaking of which, Senior Sister Yao, how did you suddenly come up with this new idea? I have never heard you say it before, just look at you I brought back a bunch of books from the library today." Compared with the two Ph.D.s Fang Zhen and Yao Mengna, the girl named Xia Tian is only a first-year master''s student. It doesn''t matter which technical route she takes. The top priority is to stabilize the two pillars of the team. We must not let them get angry. ?However, this casual question made Yao Mengna freeze on the spot. "Yes... I asked about it from a senior who happened to have done a similar project before." Yao Mengna took a deep breath and touched the tip of her nose as she replied. Originally, Yao Mengna was not a face-conscious person, so it was nothing to say that she heard it from her junior students. But firstly, this doesnt seem convincing enough, and secondly... Chang Haonan''s tone, like that of a teacher treating a primary school student, really made her unbearable. "Senior? Are there other research groups in our school working on similar projects?" Fang Zhen was also stunned. You must know that in these days, even undergraduates are rare, and the number of graduate students is even less. Between research groups in a college They all know a little bit about each other. "Oh, he was my senior when I was an undergraduate. He is no longer at Beijing Airlines." Yao Mengna had to bite the bullet and continue to make up. Fortunately, neither Fang Zhen nor Xia Tian asked further about this issue. "Then let''s do this. Junior sister Xia Tian, ??you can take over the CFD/CSD work. Anyway, Yao Bo and I have already set up the framework for this. All we need to do is follow the steps. The two of us will try to see if we can get through the dipole. "The grid method." Fang Zhen quickly found a compromise: "This will at least ensure that there will be results by the end of the year. It would be better if the new method can work." Since Du Yishan has many things to do every day, he is not in school most of the time. The other teachers in the same group are very young and have not even stayed in school as long as these doctors. Therefore, as a senior brother, Fang Zhen has to do more than scientific research. Assuming some management responsibilities makes him appear conservative in many cases. Okay, lets do it like this. Yao Mengna nodded, accepting the compromise plan. Only Xia Tian, ??who had not yet had time to express her position, was dumbfounded. The situation reversed so quickly that it completely exceeded her imagination. How come I, a first-year master''s student, was assigned to be in charge of CFD/CSD? The words are divided into two ends, and the matter is divided into one side. To Chang Haonan''s expectation, he did not see Wu Yifan all day long the next day. According to the agreement, the latter should go to the computer room to start writing the manuscript. There was still nothing all day long on the third day. ?This even made Chang Haonan a little worried. In his impression, although Wu Yifan was not interested in professional content, he would still do what he promised to others. ?Early on the fourth day, just when Chang Haonan was already hesitating whether to find a counselor or even call the police, Wu Yifan finally appeared. Nan Shen, didnt you say before that the computer time and floppy disk storage space were not enough? Wu Yifan mysteriously took off his schoolbag and put it on the table, then opened the zipper towards Chang Haonan. "I got a laptop and a new box of floppy disks." Chang Haonan was shocked when he looked at the IBM classic three-color mark in front of him. He suddenly felt that having such a friend who was obsessed with business and did not care about studies was not a bad thing. Where did you buy it? Chang Haonan turned on the computer and saw that the keyboard first split into two parts as the screen opened, and then came together again. IBM701C is almost a collectible model in later generations. If you want to buy it at this time, it is estimated to cost tens of thousands of yuan. tens of thousands of yuan in 1996! "When I was running a business, I met a senior from Huaxia Renmin University. He is a senior this year. He opened a restaurant outside and suffered heavy losses, so he used the computer to help me withdraw funds. In the past two days, I asked him to use the two coins you used. The software is installed." Chang Haonan seemed a little familiar with the story Wu Yifan told, but he no longer had time to think about it. He quickly took out his laptop and took out the two floppy disks containing engineering files. Open the liver! (End of this chapter) Chapter 13 You told me this is called J-7? Chapter 13 Did you tell me this is called J-7? In the following more than half a month, Chang Haonan has maintained a selfless working state: getting up early in the morning, in addition to attending class, he has been conducting design calculations and performance tests on several types of air intakes. Since there is no longer a limit on computer usage time, the progress is faster than initially expected. After Chang Haonan designed a satisfactory new nose, he also conveniently changed the large delta wing of the J-7 prototype into a double-winged one. Delta wings to enhance maneuverability at subsonic speeds. ?Although this improvement has been implemented on the J-7E, it is an active equipment after all. Chang Haonan cannot easily get the design drawings, so he still has to spend time to redesign a similar one. After all the design work was completed, Zhang Man even drew two imaginary drawings of this modified version of the J-7 for air combat based on the 3D model built by Chang Haonan. The course design defense is somewhat similar to the graduation project defense, except that the scale is much larger. The scene will be set directly in a large classroom, with dozens of students from the entire major sitting in the back, and several judges including Liu Hongbo sitting in the back. One row. In this era, classrooms were not generally equipped with computers. There was only a writing projector, which could project drawings placed flat on the carrier glass onto a large screen. The effect was actually similar to using a projector to display PPT, but you needed to prepare paper. Content matters. Under normal circumstances, neither other students nor the judges and teachers have seen the design plans of each group before, so a good-looking rendering can leave a deeper first impression on the audience. Soon, it was time for the defense review of the course design assignment. ??When Chang Haonan came to the classroom, it was almost full of people, so he had to take the other three people to find a seat at the end of the classroom by the window. ??They are all third-year undergraduates. Although they have almost taken professional courses, it is not easy for everyone to complete an aircraft design from scratch, even the simplest design. Hence, generally speaking, the scoring of this assignment will focus more on whether the design ideas and design processes of each group are correct. After all, there are very few groups that can completely design a real "aircraft". Unsurprisingly, the designs of the first few groups are quite satisfactory. They are basically model-sized remote control aircraft, and many of the calculation examples are even directly copied from textbooks. ? Such an assignment will not get high marks, but it will not make any big mistakes. The judges'' questions are also step-by-step, and a group can be finished in about fifteen minutes. ??The somewhat dull atmosphere lasted until Huang Zhiqiang''s team came on stage. Huang Zhiqiang personally placed a thick book of bound design instructions on the table in front of the judges. Seaplane? Its interesting Liu Hongbo finally became interested and put on the glasses that had been on the table before. ??The other three teachers also cheered up almost instantly. At the same time, another person also placed the design drawing under the condenser of the writing projector. ??Although the projection images of this era were not very clear, one could still make out that the drawing showed an airplane with twin pontoons underneath the fuselage, which immediately triggered a burst of whispers from the students behind. This is...a seaplane? It seems to be able to carry people. Yes, look at the dimensions marked on the paper. The plane is 10 meters long. Let me try. As expected of Huang Zhiqiang, he really dares to do it..." Speaking of which, I remember someone said they wanted to design a fighter jet? That should just be said. I think it would be very difficult to design a truly manned aircraft. A fighter jet... I cant even think of it. ?? Huang Zhiqiang stood on the podium in silence for a few seconds. Although he could not hear what the people behind the classroom were saying specifically, it was not difficult to imagine the shock and admiration of other students at this time. He enjoys this feeling. "Good morning, judges. The design of our team is a 2.5-ton seaplane that can carry up to 6 passengers." "The overall design of the aircraft is as follows, using a simple, reliable and stable double pontoon structure... " Firstly, we will introduce the appearance characteristics of seaplane floats and their impact on fluid dynamics... The theoretical calculation method of aircraft floats is as follows. The specific calculation process can be found on pages 23-25 ??of the design instructions..." The shape and frame design of the buoy are shown in the figure. The specific process of calculating the external load of the buoy can be found on pages 32-37 of the design instructions..." It has to be said that Huang Zhiqiang does have something special. Although the structure of this seaplane is unremarkable, his design process is very detailed and complete. He even made specific requirements for the mechanical properties of some key parts and carried out the overall design. The performance estimation should be said to be a fairly complete design plan. It took Huang Zhiqiang just half an hour to introduce his plan. When he said thank you to the teacher and classmates, the whole classroom burst into warm applause. Including Chang Haonan, everyone applauded, sincerely. Brother Nan, why are you applauding them? Isnt your design much better than that seaplane? Zhang Man clapped his hands absentmindedly twice and stopped. "It is not easy for four people to design to this level in less than a month. Although the entire body part obviously draws on existing mature designs, if you can figure out the double pontoons, you can at least be considered a master. The level of students." Chang Haonan commented very objectively. Brother Nan, you almost designed our fighter jet by yourself, isnt it even more powerful? Well...its naturally different. Facing Huang Zhiqiangs design plan, the four judges only asked two simple questions. The main reason was that the design description was very detailed and they really couldnt find any faults. Next group, Chang Haonan, Zhou Shuwan, Zhang Man, Wu Yifan! After hearing his name, Chang Haonan took a deep breath and stood up, picked up various materials on the table and walked to the podium. When he passed by Huang Zhiqiang, he seemed to feel that the latter was using a slightly provocative way. looked at him. ?Chang Haonan shook his head with regret. Huang Zhiqiangs ability is indeed very strong, but after this period of contact, he can feel that there is a problem with the other partys mentality. ?But now is not the time to worry about others, Chang Haonan also put his design description on the table in front of the judges. The thickness is only about half that of Huang Zhiqiangs book. After seeing this design description, Huang Zhiqiang was completely relievedthe design content of a fighter jet was only so thin that it was enough to show that it was an unfinished semi-finished product. Stable! "Improved version of J-7?" Liu Hongbo frowned as he looked at the title written on the cover. On the one hand, he felt that this group of students might be trying to fool around with a half-finished product. On the other hand, there was another picture under the title. The sketched renderings look... Its not like the J-7 anyway. "Dear judges and classmates, our team''s design is a deeply improved model of the J-7 fighter jet." While Chang Haonan was speaking, Wu Yifan had already projected another colored rendering of Zhang''s comic onto the big screen. superior. ?This amazing topic, combined with the pictures on the big screen, almost directly ignited the atmosphere of the entire classroom. Holy shit, are you really designing a fighter jet? Can you be more awesome than Huang Zhiqiang? Have you finished the plan? Dont just design a rough shape, right? Ive read a lot of books, so you cant fool me. Why does the J-7 look like this? Are you kidding us? (End of this chapter) Chapter 14 This can no longer be described by the word academic master. Chapter 14 This can no longer be described by the word academic master. Chang Haonan did not delay for too long. After Liu Hongbo turned around to maintain order, he started his explanation: "In view of the shortcomings of the J-7, the main fighter of the People''s Air Force, which has poor all-weather combat capabilities and does not have beyond-visual-range combat capabilities, our team changed the nose inlet of the original model to a mandibular inlet, leaving the nose The space can install a radar with a diameter of no more than 560mm, and the flight performance of the aircraft is equivalent to or better than that of the prototype. "In addition, with the rapid development of supersonic aircraft, the boundaries that separate the aircraft from the power unit, internal flow and external flow have been broken. Therefore, during the design process, we adopted a chin-type inlet/conical front body integrated design The scheme, verified by computer simulation, shows that the inlet/conical front body/engine matches well, reflecting the advantages brought by the integrated design. The design ideas are now explained as follows. The calculation process is located on pages 14-15 of the design description. Calculation Fortran language programming and Fluent software were used in the process..." The performance analysis of the integrated model of the inlet/cone front body is completely carried out by computer. The simulation ideas and methods are as follows..." In order to test the reliability of the calculation method used, this article conducts numerical verification using the double ellipsoid model whose detailed performance data is given on pages 213-217 of the textbook. The results are shown in the figure. Under different incoming flow Mach numbers and different incoming flow attack angles, the results calculated in this article are in good agreement with the experimental data, which shows the credibility of the calculation method used in this article The judges just listened at first, but soon they realized that the design was highly complete and well-thought out, and was by no means a half-finished product. So they began to read the design instructions in front of them, and discussed in low voices from time to time. When Chang Haonan started to talk about the specific design process, the four people even opened their notebooks at the same time and started recording quickly. Of course, the four professors are all involved in CFD simulation. They do not have to copy everything Chang Haonan said like Yao Mengna. They only need to write down some interesting ideas. But for other students in the back of the classroom, such a scene was already shocking. On the stage, an undergraduate student was talking nonstop. In the audience, the four judges were taking notes? As for the specific content of what Chang Haonan said, not many people care about it. Can''t understand it anyway. Huang Zhiqiang, who was full of confidence in himself just now, was even more stunned when he saw this scene - apparently the reason why the design instructions were only half as thick as those of their group was because there were a large number of steps that were not, or did not need to be, reflected on paper. As for the three-dimensional shape design of the inlet entrance that the design manual in his hand said "needs to rely on experience" to complete, Chang Haonan directly showed an exquisitely drawn half-mold schematic diagram, using only two sentences to convince several judges He nodded repeatedly. ?Just because he can''t understand doesn''t mean that the teachers can''t understand. Chang Haonan''s ideas are obviously recognized. "After the design was completed, we compared the aerodynamic performance before and after the improvement. At a speed of Mach 1.5, the angle of attack was in the range of 0 to +10 or the sideslip angle was in the range of 0 to 6. The total airway pressure recovery coefficient reached above 0.950. The speed is Mach 0.8, the total pressure recovery coefficient within the same angle of attack or sideslip angle range is above 0.968, and within the flow coefficient range that matches the engine, the maximum total pressure distortion index does not exceed 0.14. The performance of the new inlet design at subsonic speeds is improved by about 3% to 8% compared with the original design, and the performance improvement between 1-2 times the speed of sound is more than 10%. "Compared with the MiG 21MF inlet design that enlarges the intake nose cone and installs a radar, the performance in the full speed range is improved by at least 23%, and the conical front body can accommodate a radar with a maximum caliber of 560mm. According to Existing models are estimated to be enough to lock on fighter-sized targets at a distance of about 30-40 kilometers. ?Although the previous content is obscure and difficult to understand, the students here can still understand the data indicators mentioned at the end by Chang Haonan. ?Hence, the silence in the back of the classroom when the design process was discussed quickly started to boil again. In the mid-1990s, beyond visual range combat was the most urgent issue for the Air Force. It can be said that whether there is a beyond visual range combat capability is the difference between 0 and 1. Because of this, for a long time, "pointed aircraft" that can be equipped with large-diameter radars have been synonymous with advanced. Only a small number of J-8Bs and Su-27s have this feature. Today, they actually saw an improved J-7 that also had the same characteristics and could be installed with radar! Dont look at the figure of 30-40 kilometers, which seems small. You must know that the AIM7F air-to-air missile, the main force of the US military in the 1990s, has a maximum range of only 40 kilometers in a head-on attack. On this basis, the Aspad and Aspaid purchased by our country from Italy The imitation Thunderbolt 11 has a range of only 30 kilometers, so this 560mm nose is enough for now. Not to mention that on this basis, the flight performance of the aircraft has not been reduced, but has been improved! If this improved version of the J-7 is paired with the Thunderbolt 11, it will be almost the same as the F16! The F16 can fly more than 30 kilometers with the AIM7. Most people who study aviation still have some understanding of the air force. Well, there may be a certain gap in terms of range, after all, the size of the aircraft. The other person seemed to be more rational, but there was obviously excitement in his tone. "Hey, what''s the problem with short range? We don''t bully others like the Yankees. Let me see, if we can have 200 at the beginning of the year, no, we can have 100 of these improved J-7s. Those two The aircraft carrier certainly wouldnt dare be so rampant! This sentence instantly won the unanimous approval of the people around him. Although our country''s aviation industry is still relatively backward, the supply of J-7 can still be opened up. However, the current model of J-7 has lagged behind when it was manufactured, so it can only maintain a small amount of production. For a time, although everyones views were not unified, almost everyone in the classroom began to discuss the aircrafts performance, cost, manufacturing difficulty and even the prospect of equipping the troops. In fact, not only the students behind, but also several judges and teachers began to consider whether this improved model really has the possibility of being put into practice? "Xiao Chang, although your design still has some room for improvement, personally, I have nothing to ask. If I were to take charge, I would definitely not be able to come up with a better solution than this." Professor Li Guang, the oldest of the four judges, took off his reading glasses and said, looking at Chang Haonan with relief in his eyes: "So I want to ask, do you think there are any problems that need to be solved in the manufacturing of this aircraft? "?" ?This is almost impossible to give a higher evaluation. You must know that this course only requires aerodynamic design, and manufacturing issues are not included in the assessment scope. Chang Haonan has already been prepared for this. "Hello Professor Li, we have considered this issue at the beginning of the design. 60% of the parts of this improved model can be used in common with the original model. The performance requirements of the new parts generally do not exceed the level of the MiG 21MF. However, considering the weight of the radar, in order to maintain aerodynamic balance, some composite materials need to be used to reduce weight in the air inlet and radome, accounting for approximately 2% of the total material of the aircraft body. Composite materials with a dosage of 2% are not new to the Chinese aviation industry. They have already had experience with the J-7M, J-8B and J-H-7 before. So this answer is basically equivalent to "there are no problems that need to be solved", but it seems not modest enough to say so directly, so I found a problem that is not a problem. I think if conditions permit, can we build a scale model and go to Mianyang to try it in a wind tunnel? ?Liu Hongbos voice was not very loud, and he said it to three other teachers, but someone still heard what he said. Mianyangs wind tunnel is not just a small experiment in a school laboratory. Going there to test, even if it is just a scale model, means that the plan really has the potential to take root. You must know that this is just a course design for the junior year! ??The discussion that had been silent started again, but this time, more people''s attention shifted to Chang Haonan. Obviously, the word academic master is no longer enough to describe such a person. (End of this chapter) Chapter 15 We generally call it a school bitch Chapter 15 We generally call it a school bitch ??In a corner at the back of the classroom, Huang Zhiqiangs gloomy expression was incompatible with the lively atmosphere in the classroom. The seaplane designed by his group had been completely forgotten by everyone. He suddenly felt a little bitter, followed closely by anger. When he was a freshman, the school made computer courses compulsory. Huang Zhiqiang clearly remembers that Chang Haonan at that time was not even very proficient in using the keyboard. The schedule of professional courses in the first semester of the sophomore and junior years in the Aircraft Department was like hell. There was not even enough time to sleep every day. Moreover, Chang Haonan basically attended classes and self-study with everyone at that time, so it was impossible for him to have time to study computers on his own. ?Under such circumstances, how come he suddenly became proficient in computer programming and computational simulation in the second semester of his junior year? ?Hence, Huang Zhiqiang naturally thought of a possibility - they found foreign aid. After all, when he designed a seaplane, he copied the calculation examples in the American design manual. The design of a fighter jet is intricate. How could it be done so clearly without an experienced boss? ?Following this line of thought, he quickly remembered that he overheard Zhou Shuwan talking on the phone at home. The latter''s father seemed to work in the 601 Research Institute. Everything is right! Huang Zhiqiang excitedly slapped the table. Fortunately, the classroom was quite chaotic and everyone''s attention was focused on the aircraft design in front, so it did not attract too many people''s attention. Brother Qiang, what are you doing? A member of the same group next to him still noticed his emotional change. "Hmph, these people are trying too hard." Huang Zhiqiang snorted: "If they only come up with a design plan, it can be said to be a burst of inspiration, but these things related to manufacturing even take into account the issues of materials science. This is not something that four people can make, but it looks like...the work of those research institutes, and the father of Zhou Shuwan in their group happens to work in the 601 Institute." Boss, you are saying that their plan came from somewhere else... Another team member immediately understood. But if thats the case, why is Chang Haonan the leader of their group? Liu Ran, who lives in the same dormitory as Huang Zhiqiang and Chang Haonan, is relatively calm, and he doesn''t want to make the relationship between roommates too tense. "It''s just a matter of diverting firepower. I''m afraid Zhou Shuwan doesn''t want to be too high-profile." Huang Zhiqiang is convinced of his analysis just now, so naturally he won''t care about these minutiae: "After all, if the course design itself can get high marks, then the entire group''s The grades wont be bad, and more importantly, I can show my face in front of the reviewing teachers. Speaking of this, Huang Zhiqiang gritted his teeth again. If Chang Haonan''s group hadn''t stepped in, his design would have stood out from the crowd. At the same time, Chang Haonan has also finished his presentation. According to custom, the review teacher has to take each group''s design description back and read it completely. After all, the finished product designed by most people is completely invisible, and the score can only be judged by the correctness of the design process. ?But no one would doubt that their group would get the highest score, or even a perfect score. Since the atmosphere in the entire classroom had been aroused, Liu Hongbo simply announced a break and waited until everyone calmed down before continuing. Almost as soon as Chang Haonan stepped off the podium and returned to his seat, he was surrounded by several classmates in his class who usually had good relationships with him. Haonan, you dont show your real face. If I had known that you were so good at computers, the institute should have recommended you to participate in the digital modeling competition last semester. The person who spoke was Chang Haonans class monitor, a Mongolian man with average grades but a good person. He was highly regarded among his classmates. I was still a scumbag in elementary school last semester. Recommending me to go would be harmful to the college. Chang Haonans answer was not adulterated, but it still attracted a burst of cheerful boos from around him. "Anan, we generally call people like you a school bitch, and you will be scorned." Another classmate came up and patted Chang Haonan on the shoulder: "Besides, I estimate that you should have received full marks in this course. Look. With this attitude, the postgraduate students who are exempted from the examination must be stable, why dont you express this? The words "graduate student without examination" made Huang Zhiqiang, who was not far away, panic in his heart. You can directly study for a master''s degree or even a doctorate without taking an exam. As an institutionalized process, it has only been ten years at this time. According to regulations, the number of places cannot exceed 5%. Specifically for their aircraft department, there are usually 3-4 people, so the competition is quite fierce. fierce. ?This is exactly what he is aiming at, ??Although his previous results were still first in the year group, Chang Haonan, Zhou Shuwan and others were not much worse than him, and today''s incident will obviously become a huge bonus during the interview process. We cant let this happen. Huang Zhiqiang clenched his fists and secretly determined to go to Teacher Liu Hongbo to report the cheating behavior of Chang Haonans group. ?At this time, Liu Hongbo in front walked out of the classroom with a glass of water. ? Huang Zhiqiang gritted his teeth and asked another student in the same group to follow him out. ??If he just used anonymous reporting letters, he might not be able to attract attention at all. And if he reported directly, it would be suspected of discrediting his competitors, so he had to use other methods. Even if their performance cannot be affected, at least it will leave an unsolvable knot in the minds of the judges and teachers. When it comes time to recommend the interview, this may become a factor that affects the outcome. ??The crowd around Chang Haonan quickly dispersed. After all, this was just a course design demonstration. Everyone had their own things to do, and it was impossible to hang around others all the time. At this time, a short and thin figure sat next to him. "Haonan, no, Brother Nan, no, Nan Shen..." You have something to say. Chang Haonan replied while starting to search for information about the person in front of him in his memory. ??Li Yan, a native of Liao Province and a fellow villager of Chang Haonan, is not in the same class as him, but after all, they have a relationship with each other, so they are familiar with each other. ??But its also the type that we have no contact with after graduation. "Nanshen, do you think the improved J-7 designed by your team can really be equipped for military service?" When Li Yan asked this question, his eyes were fixed on the cartoon rendering on the table, with a look in his eyes. It seemed to be shining with light. At this time, Chang Haonan vaguely remembered that Li Yan''s father seemed to be an air force pilot. No. Chang Haonan decisively gave a negative answer. After hearing this answer, Li Yan''s eyes gradually dimmed. We will be better equipped. Is there anything better? Li Yan looked at the design in front of him in disbelief. ?His father is a J-7 pilot. In fact, he is a pilot of a very rare model - the J-7C. ?This new aircraft, which was only equipped with the army two years ago, has greatly sacrificed its maneuverability just for the sake of all-weather combat capabilities. Zhang Yan heard his father and colleagues complain more than once during the holidays that the performance of the new aircraft was not as good as the old model. So in his opinion, Chang Haonan''s improved version is almost perfect. Of course. Chang Haonan nodded. (End of this chapter) Chapter 16 About the student I admired suddenly turned into my junior brother Chapter 16 About the student I liked suddenly turned into my junior brother In fact, in 1996, the first prototype of the J-10 was nearly completed, and the localization of the Su-27 was also in full swing. The People''s Air Force''s blueprint for the light and heavy configuration of the next three generations of aircraft was already very clear. In this case , it is impossible to equip a large number of deeply improved models of the J-7. ?So even if his design is really implemented, it will only be used for foreign trade at most, replacing the status of the J-7MG in the original timeline. Chang Haonan, who has been through it all, knows this very well, so he decided to use this model as a stepping stone from the beginning. And judging from today''s situation, it works well. Of course, you cant tell Li Yan these things. Project No. 10 and No. 11 are both top secrets of Tianzi No. 1. At least he, a junior, shouldnt know too many details. After a 15-minute break, the second half of the defense review continued. However, after the presentations of Huang Zhiqiang and Chang Haonan, everyone basically had no patience to look at the imperfect semi-finished designs. Professor Liu Hongbo, sitting in the first row, was a little confused. ??While fetching water in the water room just now, he overheard several students saying that the J-7 improved plan came out of 601 and was not the work of Chang Haonan and the four of them. Judging from the previous defense process, Liu Hongbo didn''t really believe this statement. Whether it was Chang Haonan who made the main speech, or the other two students, a boy and a girl, who gave supplementary explanations of the calculation process, they all showed that they had a strong understanding of the design plan. own understanding. If you just copy a design drawing, it is impossible to reach this level. But he had to think about this possibility. On the one hand, the design description they submitted does have the style of those in the aviation industry. On the other hand, this thing is really too big. The level of students'' grades and even whether they cheated in course design are trivial matters, but if a plan from the Aircraft Design Institute really leaks out, it would be a big trouble. Even if there was a one in 10,000 possibility, Liu Hongbo would not dare to ignore it completely. ??But having said that, if a high-profile interrogation and investigation is conducted just for this one in 10,000 possibility, then no matter what the result is, it will have an adverse impact on several students. He is also thinking about letting Chang Haonan be his graduate student! Until he returned to the office after class, Liu Hongbo was still in a dilemma. Senior brother, although your hair is indeed very thick, you may still become bald if you keep growing it like this. A clear female voice suddenly sounded from the door. Liu Hongbo himself is also a student of Academician Du Yishan. He just became independent from the latters research group last year. In addition, he is only in his early thirties, so the academicians students are accustomed to calling him senior brother. "Oh, it''s Junior Sister Yao. I see that you are all busy with the 7-200 new wing recently. Why do you have time to come to me today?" Liu Hongbo turned around and looked at the door. Standing there was Yao Mengna. Mr. Du went back to school today, arent you going to meet him? Yao Mengna asked, leaning on the door frame. Liu Hongbo''s face lit up when he heard this, and he suddenly felt like a new village had a bright future. Because it suddenly occurred to him that the matter could be investigated by Academician Du Yishan. With the latter''s connections, he only needed to make a call to Institute 601 to get it done. Lets go, I just have something to ask Mr. Du. Liu Hongbo picked up all the design materials handed over by Chang Haonans group from the table, and quickly left the office with Yao Mengna. Half an hour later, Du Yishan and Liu Hongbo were the only two people left in Du Yishans office. "Xiao Liu, I''m afraid you didn''t just come here today just to look at me." Du Yishan sat back on his chair and pointed to a pile of things in Liu Hongbo''s hand: "I have something in my hand, and I''m going to give it to you." Did I assign a task?" "I still can''t hide it from you, teacher." Liu Hongbo put the information in his hand on Du Yishan''s desk with a smile on his face: "This is a big assignment handed in by a group in this aircraft design class." ? ? ? "Big assignment ? I remember, don''t you always ask Li Guang and the others to be judges together?" Du Yishan unscrewed the thermos cup in his hand, but found that the water in it was already cold, so he handed it to Liu Hongbo who was standing next to him. Pour some hot water: "What, the four of you don''t agree?" Liu Hongbo handed the thermos filled with water back to Du Yishan: "That''s not true. In fact, we all agree that this plan is perfect." Oh? Then Id like to take a look. Du Yishan finally became interested. As he spoke, he used his other hand to open the first page of the design description. An improved version of J-7? Du Yishan smiled and remembered the time when he was surveying and mapping to imitate the J-7 when he was young. Its rare to have the courage to try a supersonic fighter jet, and the rest of your life is formidable. Liu Hongbo did not answer this time, mainly because he really didnt know what to say. ?This design is not as simple as having courage at all. Sure enough, after turning to the third page, Du Yishan''s expression became serious and the thermos cup in his hand was placed on the table. When he turned to the fourth page, the academician had already taken out a sharpened red and blue pencil from the pen holder and began to write and draw on the draft paper next to him. About half an hour later, Du Yishan finally raised his head and asked, "Is this really an undergraduate design?" This is exactly why I came to you Later, Liu Hongbo told Du Yishan what had happened and his concerns in short words, and said that he had called after returning to the office to inquire. There was a student named Zhou Shuwan in the group, and his father was indeed in the 601 in Shengjing. Research institute work. "From the writing style, we can indeed see some shadows..." Du Yishan lowered his head and thought for a moment: "But after the 601 Institute completed the surveying and mapping of the basic type of J-7, it quickly handed over the follow-up tasks to the Rongcheng 611 Institute and the Rongcheng Institute of Technology in accordance with the requirements of the superiors. Building 648 forts was already 30 years ago. Du Yishans meaning is very clear. Theoretically, it is unlikely that the 601 Institute will have an ongoing J-7 improved project. "Forget it, just to be safe, I''ll make another call to confirm." Du Yishan hesitated for a moment, picked up the receiver of a red telephone on the table, waved his hand to Liu Hongbo to wait outside the office temporarily, and then dialed a number . A few minutes later, Du Yishan''s voice came from the office: "Okay, come in." Liu Hongbo opened the door again and saw Du Yishan leaning on a chair, holding the reading glasses he had taken off in one hand, and holding the design report in the other hand. With his knowledge of his teacher over the years, he knew that this was a sign that Academician Du was in a relaxed state. It should be no problem. ??It''s just that Du Yishan''s next words made him feel like he was struck by lightning. Xiao Liu, I think Chang Haonan can come to me to study for graduate school. Well, like Xiao Yao, its okay to make an exception and let him directly study for a doctorate. "ah?" Liu Hongbo looked confused. How come the student I just fell in love with in the morning will become my junior brother at noon? (End of this chapter) Chapter 17 Favored by academicians [recommended above, begging to pursue it] Chapter 17 The Favor of Academicians [Recommended above, I beg to read it] On the other hand, Chang Haonan still didnt know that his stepping stone had achieved results far beyond expectations. ? He ??was catching up on sleep in the dormitory at this time - he had been suffering from liver failure for more than half a month, and even though his physical condition had returned to the most energetic state of his early 20s, he really felt a little unbearable. Until a rapid knock on the door woke him up. "Huh?" Chang Haonan reluctantly opened his eyes, and then spent about two seconds to make sure that he was the only one in the dormitory, so he reluctantly got out of bed and opened the door. Standing outside the door is Yan Lu, the counselor in charge of the entire aircraft department. Fortunately, he has no habit of sleeping naked. Sister Lu? Yan Lu is not much older than the junior students, and she has a good personality, so everyone usually calls her Sister Lu, Sister Lu. ?There is no woman who doesnt like to be called younger. ?However, although she has no airs in front of students, Yan Lu is the counselor in charge of the entire department after all, and she rarely directly interacts with a specific student. So its quite rare for her to appear here. Classmate Chang Haonan, Academician Du just called my office and said he wanted you to come to his office. Yan Lu''s tone was a little excited. Although Du Yishan didn''t tell Chang Haonan what to do just now, judging from the other party''s tone, it shouldn''t be a bad thing. ?In addition to being a counselor, Yan Lu is also the deputy secretary of the Youth League Committee of the college, so if the students can achieve something, she can also be credited with it. At least it can be included in this years Youth League Committee work report. "Academician Du...Academician Du Yishan?" Chang Haonan was even stunned when he heard the name. To be honest, he had never thought that he could rise to the top by relying on course design and be favored by Du Yishan, but when things really developed in this direction, he was still in a daze for a moment. "Who else could it be? You quickly change your clothes and ride my bike over there." Yan Lu looked at the basketball uniform that Chang Haonan was wearing as pajamas. Although it was not a formal occasion, she was dressed like this to meet the academician. Still a bit much. "Oh...oh, okay, I''ll change right away." Chang Haonan closed the door with his backhand, quickly changed into a set of shirts and jeans, and then put some things he might need into his bag and carried it behind his back. ?Previously, his plan was to follow Professor Liu Hongbo to improve the Xinzhou 60 after receiving a graduate degree in the second half of the year, but now the person extending an olive branch suddenly became Academician Du, which made Chang Haonan feel a little hopeful. ?Ten minutes later, Chang Haonan rode a women''s bicycle downstairs to the aircraft building. Classmate Chang Haonan! Before he could park his bicycle, he heard a familiar voice coming from not far away. When he looked up, he saw that it was Professor Liu Hongbo waiting for him at the door of the building. Teacher Liu. "Sigh..." Liu Hongbo''s first reaction after seeing Chang Haonan was to sigh. Looking at the complicated expression of Professor Liu in front of him, Chang Haonan was a little confused for a moment. Many possibilities flashed through his mind in an instant. "Just call me senior brother from now on." Liu Hongbo turned around and walked into the building with a bitter look on his face: "Let''s go, I will take you to see Academician Du." ??I''m so stupid, really, I just knew that Academician Du could prove Chang Haonan''s innocence with just a phone call, but I didn''t know that he would actually steal my student... Chang Haonan naturally didn''t know what kind of ups and downs Liu Hongbo had experienced in the past half day, so he just followed him to Du Yishan''s office on the fourth floor. "Hello, Academician Du." "Classmate Chang Haonan, right?" Du Yishan showed a kind smile and stretched out his hand to motion to another chair in front of him: "Sit here and chat." Liu Hongbo, who was next to him, had long been accustomed to this and sat on a sofa against the wall. I have just seen the design of our group, and it is very well done. Du Yishan gave a rare high evaluation for him right out of the gate. I see the division of labor written in this design description. Are you responsible for the overall program control and all computer simulation work? Yes. Chang Haonan nodded. Now is definitely not the time to be modest. Tell me what you think. How did you come up with the idea of ??designing a fighter jet? After Du Yishan finished speaking, he picked up the thermos cup and took a leisurely sip of water. Faced with this problem, Chang Haonan of course told the truth: "Because of what happened at the beginning of this year, I feel that we cannot always let others bully us. Since the air force is not strong enough, then I want to design an aircraft that can quickly improve combat effectiveness. " After hearing the answer given by Chang Haonan, Du Yishan''s eyes changed slightly. Such a simple emotion, but it is no longer common in this age when people''s minds are changing. Whats more, the student in front of me not only has simple emotions, but is also able to transform emotions into persistent actions. This reminded him of the colleagues he had when he was young. "Compared to strong enemies, we are still relatively weak now." Du Yishan put the water glass aside: "But as long as I have your energy and mobility, it is not impossible for me to catch up with them." "Of course, and I believe that day will not be far away." Chang Haonan replied firmly. Du Yishan did not continue this topic, just smiled and continued to ask: "So, after you had the idea of ??improving the J-7, how did you come up with the idea of ??taking the mandibular air intake route?" The critical moment has come! ?Chang Haonan took a deep breath and gave the explanation he had thought of for a long time: What the J-7 currently lacks the most is its beyond-visual-range combat capability, so my starting point is to leave a nose space for the aircraft to install a radar. "The idea of ??enlarging the nose cone has almost reached its end on the MiG-21bis and my country''s J-7C, so I considered directly changing the original nose air intake method, and the mandibular air inlet has the least impact on the overall structure of the aircraft. kind of. In subsequent simulations, I found that because the outer compression flow field of the nose radome is difficult to match the inner contraction flow field of the inlet, there is a problem that the compression of the side wall of the inlet is stronger than the compression of the upper wall. At the same time, the inner cone-shaped incident shock wave of the inlet intersects with the cone-shaped precursor to generate a crescent-shaped upper front edge, resulting in high pressure on both sides in the near-wall area near the upper front edge of the inlet. The transverse pressure gradient on the symmetry plane forces the boundary layer developed from the cone precursor to converge toward the symmetry plane of the inlet, thereby forming a low-energy vortex structure that develops downstream, seriously reducing the overall performance of the inlet. " "So I considered that instead of designing the aircraft and the power unit separately, as well as the internal flow and the external flow, the radome was designed as an integrated design as the conical front body of the inlet, using the longitudinal symmetry plane to face the transverse pressure gradient on both sides. , to realize the displacement of the conical front body boundary layer to reduce the impact of the front body boundary layer on the inner flow path of the intake duct, which is the idea reflected in my design description. " ?Chang Haonan was, after all, a genuine aeronautical engineer before he was reborn. He did not only know the things that were taught to him systematically, so the answers he gave were clear and well thought out. From the initial indicator requirements, to the subsequent trial and error encounters, then to the discovery of the problem, and finally to the solution of the problem, a complete closed loop of thinking is formed. This is the mental journey that only the real designer himself can explain clearly. It will not be written in any design instructions or manuals. When Chang Haonan finished explaining his design, Du Yishan''s eyes were full of approval. Thanks to [book friend 150309065732434] for the reward of 500 starting coins Thank you to [Wushuang Wushen] [This cannot be closed yet] [fhtvbn] [Honghualang] [LeeEnfield] for your monthly ticket support! (End of this chapter) Chapter 18 The idea of ??hypersonic speed Chapter 18 The idea of ??hypersonic speed "Xiao Chang, Xiao...Professor Liu told me before that you had a very deep and clear understanding of this design during the defense. To be honest, I didn''t believe it, but now I can see it." Du Yishan cheerfully picked up the design plan of Chang Haonan and others on the table: "It''s like the waves behind the Yangtze River push the waves ahead. I, an old man like me, can hardly keep up with the ideas of you young people." Academician Du was very complimentary. I just used some simulation methods to make an improved model design. There are still many things I need to learn from seniors like you. Chang Haonan This is not a random compliment. In fact, Du Yishan still played a vital role in the aviation industry until the new century, and played an important role in the development of a certain type of transport aircraft. "Ha, it sounds nice to talk." Du Yishan has obviously read this design report many times, and he immediately turned to the content about the performance test: "What do you think is the biggest advantage of the mandibular air intake designed by you? What? Or is there any other place besides being on this plane? ?This question shocked Chang Haonan, and he secretly sighed that Academician Du''s vision was really good. He only spent two or three hours at most reading the design instructions before discovering the greater potential of this design. "In fact, we have discovered in simulations that the new air inlet has more obvious advantages at higher speeds than the traditional design. Although the maximum speed of the improved J-7 can only reach Mach 2.0, we still have higher speeds. Some calculations were conducted on the flow field distribution and performance at speeds. The results show that this inlet design can maintain a total pressure recovery coefficient of more than 0.73 up to the speed of Mach 3.5-4.0 and the inflow angle of attack of 6. , and if the high speed is specially optimized in the design point selection, the performance can be even higher. Can it reach Mach 4? ?Du Yishan had made qualitative judgments based on experience before, but after all, his eyes were not in a wind tunnel, so he still couldn''t see the specific data. Well... we have calculated up to Mach 4. At higher speeds, the current calculation and simulation methods are not suitable. The methods need to be improved, and better equipment is needed. In other words, what Chang Haonan means is that this design still has potential that can be tapped, but it cannot be tapped due to current conditions. "As for the use, I think in the short term, we can consider combining it with a liquid fuel ramjet engine and using it on missiles with a speed of Mach 3-4. In the long term, if we need to develop and use scramjet engines for flight in the future, This design idea should also be useful for preliminary research on air-breathing hypersonic aircraft with speeds above 5 times the speed of sound. ?This time, Du Yishan''s eyes were a little shocked. In 1996, China had not even fully developed a subsonic cruise missile using a turbojet engine. ?Under such circumstances, this junior undergraduate student has actually begun to consider making technical preparations for supersonic cruise missiles and even hypersonic cruise missiles. ?Although it is not that no one is doing preliminary research in this area, those are basically still in feasibility analysis or theoretical research. This air inlet design, and more importantly, this integrated design idea, can even be counted as part of engineering practice. ?It is a pity that with the current strength of Chinas aviation industry, there is no way to carry out more in-depth system development work. Looking at the expression of Academician Du Yishan in front of him, Chang Haonan knew that he should be stable. Sure enough, after about a minute of ideological struggle, Du Yishan put the design instructions in his hand back on the table next to him, raised his head and asked Chang Haonan: Xiao Chang, I wonder what your plans are for your future? Not far away, Professor Liu Hongbo closed his eyes in painhis last glimmer of hope was shattered. As a student of Du Yishan, he knew very well that what he just said was a standard question before an academician prepares to recruit disciples. Faced with this problem, Chang Haonan almost did not think twice: "Since I have chosen Beijing Airlines'' aircraft system, it is natural to continue my studies and use scientific research results to help the development of our country''s aviation industry!" He has already taken this path in his previous life without a system. Now that I have come, it is even more impossible to change my mind. "Well... your course design can be used as a graduation project with a slight modification. I can be your graduation project tutor." Du Yishan nodded: "As for the future, I have two suggestions. I wonder if you are interested in hearing it? " Although this is a question, if someone is really not interested in answering, they would be stupid. Of course, please give the lecture, Academician Du. ?Chang Haonan took a deep breath and tried to calm down his excitement. "First, I can make an exception for you to apply for a place to study abroad on a government-sponsored basis. It may be in the UK or the United States. If you are willing to take this path, then in your senior year, focus on overcoming the language barrier. This way You can adapt to the environment as quickly as possible. ?Du Yishan was only halfway through his proposal when Liu Hongbo on the other side wanted to get up and seemed hesitant to speak. Although government-sponsored students studying abroad must return to their country to work according to regulations, in this era, there are quite a few people who never return after going abroad. In fact, most people do not intend to break the contract at the beginning, but after arriving abroad. After seeing better living, working and even scientific research conditions, I finally chose to stay outside. Although publicly-sponsored international students who refuse to return to their country need to repay all state-funded expenses in accordance with the agreement and pay an additional 30% liquidated damages, with the current income gap between domestic and foreign countries, this money is not considered at all for those who stay in European and American countries to work. What. Therefore, Liu Hongbos philosophy has always been that if the students themselves have the idea of ??going abroad, he will not object, but if the students do not have the intention to do so, he will not take the initiative to mention it. He was really too afraid that the good young man he had fallen in love with would never come back. ?Especially for a genius like Chang Haonan, who can be said to be one in a million. If he goes abroad, he will definitely be the target of the other country''s struggle. Even if he wants to come back, it may not be that easy. "Second, this is also an exception. You can choose to join my research group and skip the master''s degree and directly study for a doctorate. Compared with going abroad, you can get exposed to more practical projects here, but the conditions are indeed not the same as others. It cant be compared, it will be harder. If you choose this, I will let you participate in some key projects as soon as possible. "Of course, if you have other ideas of your own, I will try my best to help. In short, the choice is yours." I choose the second one. Chang Haonan replied looking into Du Yishans eyes. ?This was his original idea, to prove his ability through course design and participate in specific projects as soon as possible, but the actual situation went more smoothly than he had previously expected. You really dont want to go abroad? Du Yishan smiled and asked again: If you go abroad for further study, you can still build the country when you come back. In fact, if Chang Haonan did not have this system, he might really choose to go abroad. After all, in this era, no matter which company is Britain, the United States, France or Russia, they are far ahead of the domestic in aviation. After going out, he only needs to learn something and return to the country. Its all valuable experience and knowledge afterwards. But with the help of the system, this gap no longer exists for Chang Haonan. If he goes abroad, he will contribute knowledge to others instead of learning knowledge. This is contrary to his original intention. (End of this chapter) Chapter 19 I choose to stay [Kneel down and beg to pursue reading! 】 Chapter 19 I choose to stay [Kneel down and beg to read! Yes, I want to stay with Beijing Airlines. ?Chang Haonan repeated his choice again. "Of course there are benefits to going abroad, but as a Chinese, I can''t come into contact with any core projects abroad, and the experience I can gain is limited. Moreover, I have been reading some European and American professional journals and books in the library. To be honest, I dont think the gap between us is so big that we need to learn something abroad that we cant learn at home. ?Du Yishan stared at Chang Haonan with a determined look for about half a minute. Then, you are welcome to join my research group. After hearing these words, Chang Haonan finally showed joy: "Thank you, Academician Du." Still called Academician Du? Thank you, Teacher Du! ?An old man and a young man sit opposite each other, forming a harmonious picture in the afternoon sun, as if they are the inheritance of two generations of Chinese aviation people. However, Professor Liu Hongbo, who was heartbroken next to him, couldn''t stand this. After hearing Chang Haonan say that he would not go abroad, his heart dropped, and he found an excuse to escape. ??Although it is only a verbal agreement reached in the office, it is impossible for a person in Du Yishan''s position to let go of Chang Haonan''s pigeons, so the latter''s decision to go direct can basically be regarded as a certainty. Du Yishan was obviously in a good mood to have such a talented student: "Xiao Chang, have you ever thought about writing this integrated design method as a paper and publishing it?" Even if it is research related to confidential projects, a considerable part of it can still be published after being declassified, let alone such content that has nothing to do with the specific project. Just like many patent authors hide some key steps in public documents or deliberately write them incorrectly, authors of papers in the engineering field are not always so honest and sometimes use some means to keep key content confidential. necessary industry exchanges. Chang Haonan naturally understood the truth behind this, but he still had to pretend that he didn''t understand it. "Of course I have thought about it personally, but the content involves active equipment after all..." Haha, its great that you have this string in your mind. Du Yishan smiled more times this afternoon than he had in the past week. It was obvious that the student in front of him made him very satisfied. "But firstly, this research itself is not confidential, it is just a methodological thing, and you can also refer to the declassification process to hide some content related to specific data. Secondly, I read your design description, and the key point is As for the simulation program, this does not need to be published publicly. If anyone within our system is interested in this, they will naturally contact you. " In that case, I will go back and revise it and adjust it to the format of the paper. Chang Haonan agreed directly. Its not that he had to do anything with this paper, but from the beginning, Chang Haonans idea was to spread the knowledge and experience that the system taught him. As an undergraduate, the best way is to publish a paper. ??The same problem remains. Engineering research will always be a castle in the air if it does not involve specific projects. Successful project experience is always more credible than a paper alone. But Chang Haonan can''t tell the academician directly, I know that the 611 Institute is preparing a similar J-7 improved design, please help me contact him. Leaving aside Du Yishans reaction, the 611 Institute itself may not yet know how to change it. Go ahead and remember to give it to me after youve made the changes. Du Yishan handed the design instructions on the table to Chang Haonan: You have to do this quickly. It will be good for you if you can be hired before the start of the next semester. From Du Yishans point of view, it is now approaching the end of the junior year. If the paper can be published before the end of this semester, it will be of great help to the interviews for postgraduate students who are exempt from examination and the scholarship evaluation for this academic year. ?Of course he can go beyond the college level and force people to leave, but Chang Haonan''s own performance is good, so there is no need to do such bad things. Du Yishan even wondered whether he should add his own name at the end of the paper. As a scholar with a certain reputation internationally, his name can at least make editors take a serious look at the content of the paper instead of discarding it directly. As for the quality of the paper No need to worry at all. Chang Haonan stood up and took the design instructions with both hands: "Then I won''t disturb Teacher Du. I will bring it to you after the changes are completed." After leaving the office, Chang Haonan took a special look at the system and found that his scientific research points had been restored to 6 points. The system gives scientific research points based on the upper limit of the impact of scientific research results. The actual influence of his design is still very limited, so he has only received 5 scientific research points. If Du Yishan was not one of the people who saw the design description, this number would probably be even lower. But if this result has a greater impact in the future, then new points will be earned. Correspondingly, if a result creates a sensation when it comes out, it can obtain a large number of points at once, but it will be more difficult to obtain points through the same result in the future. Therefore, although his starting point is different from that of Du Yishan, Chang Haonan also hopes that his paper can be published as soon as possible. In addition, he also gained a measly 5 experience points in [Management Level]... After all, I just took three undergraduate students to do a big homework. Engineering Experiencegained 20 points. Theoretical ability has not changed. After all, as a person who came back from more than 20 years ago, Chang Haonan did not use any "new" theories for himself in this process. ?Looking at Chang Haonan''s leaving figure, Du Yishan felt as if he was back when he was young, full of inexhaustible energy. ?So after thinking for a moment, he decided to go to Liu Hongbo''s place to see if there were any other works that would impress people this year. Of course, he doesnt expect to find a second Chang Haonan. For a junior undergraduate, being able to complete the design process without making any mistakes is already a pretty good prospect. Xiao Liu. Du Yishan opened the door of Liu Hongbos office holding a thermos cup: Are there any other works worth seeing in this sessions course design? Liu Hongbo almost cried when he heard this. Of course, he still had Huang Zhiqiang''s design instructions in his hand. Although he couldn''t compare with Chang Haonan, it was definitely a perfect score compared to previous years. However, this second best option seems to be blocked by Du Yishan... But Liu Hongbo is a person who cannot lie. He knows that he will never be able to deceive the teacher in front of him. There is also a very complete design, so I am going to give it two full marks this year. Please sit down and rest for a while, and I will get it for you. After a while, the designs from Huang Zhiqiangs group were placed in front of Du Yishan. Another complete design? ?Du Yishan happily sat on the sofa and started reading. However, this time, he gradually frowned while reading. Liu Hongbo also quickly discovered that something was wrong with Du Yishan''s expression. Different from the seriousness when he first saw Chang Haonan''s design, the academician''s face now looked more like...angry? Teacher, whats wrong with this design? "Go to my office. On the second bookshelf on the right side of the table, there is an English book with a green cover. Bring it over." Du Yishan said in a deep voice. ?Although he still didnt know what happened, Liu Hongbo immediately took back the book according to the other partys wishes. During the defense review, did you ask any questions about this design? Du Yishan raised the carefully bound design description in his hand. I asked about some calculation details, but the design description was already very detailed, so I didnt ask any more questions. An ominous premonition flashed through Liu Hongbos mind. Come and take a look at this. ?Du Yishan said, turning the book to the end, and then handed it to Liu Hongbo. (End of this chapter) Chapter 20 The sons and daughters of China have many wonderful ambitions [please read it! 】 Chapter 20: Chinese people have many ambitions [Please read it! "This is..." Liu Hongbo took the book and glanced at it twice. The expression on his face quickly turned to shock, and after turning back a few pages, it turned to anger. There is a "Design Calculation Example" chapter at the end of this book, in which the design process of a small seaplane is almost exactly the same as that submitted by Huang Zhiqiang! Although considering the difficulty of this course, Liu Hongbo does not prohibit students from referring to calculation examples in textbooks or other books, but they need to be marked according to the references. Too many references will have a negative impact on grades. ??Huang Zhiqiangs design description naturally did not indicate it. Besides, this situation can no longer be called a reference, it is completely plagiarism! And he actually wanted to give this assignment full marks before! Liu Hongbo suddenly felt that he had been fooled. "Forget it, you can handle this matter. I''ll go back first." Du Yishan''s good mood was completely ruined by this incident. He got up and left Liu Hongbo''s office without even taking the book. A few minutes later, Liu Hongbo picked up the phone receiver on his desk with a gloomy expression. Hello, is this Teacher Yan Lu? Please make another trip and ask your classmate Huang Zhiqiang to come to my office. "It doesn''t matter. I''m always in the office. You can wait no matter how late it is." ??Although Liu Hongbo had already made a rough guess about the situation, after all, it was related to a student''s grades and even his future, so he decided to suppress his anger first and called Huang Zhiqiang over to ask more detailed questions about the design ideas. ??If the latter can describe a closed-loop thinking process like Chang Haonan did just now, then he can think of it as a coincidence. But if not, that''s a different story. ?In this era, papers still had to be submitted by hand, so Chang Haonan, who left Du Yishan''s office, went directly to the stationery store to buy a stack of manuscript paper, and then went straight to the library. As for Yan Lus bicycle Its better to do it later, I believe Sister Lu will understand. Chang Haonan found a secluded place to sit down, took out the Hero 100 pen that his father gave him when he was in college from his stationery bag, and wrote the title of the paper he had already thought of on the manuscript paper. Research on the integrated layout of double-module mandibular inward-turning air inlet/conical front body Abstract: In order to achieve a good match between the internal contraction flow field of the three-dimensional inward turning inlet and the external compression flow field of the conical precursor, a double-moduleschininward-type inward-turning inlet/conical precursor (Double-moduleschininward- turninginletandconicalforebody (DCII/CF) integrated design method, a novel DCII/CF integrated layout of juxtaposed inlets is obtained. For this layout form, we carried out... Handwritten papers are actually very simple to write. The troublesome thing is drawing. You need to draw it by hand on graph paper and then paste it on. It is not pasted with Ctrl+V, but with glue and physical paste. Fortunately, this is only the first draft, and Wu Yifan has already prepared the required charts before, saving Chang Haonan a lot of effort. Since he was already familiar with the content in the past half a month, Chang Haonan did not spend much time and only took about four hours to complete it smoothly. It was already evening at this time. Chang Haonan estimated that Du Yishan had probably already got off work, so he decided to send it over tomorrow. Looking at the 10 pages of manuscript paper that had been filled in front of him, he stretched contentedly. Speaking of which, its time to contact my family again. ??Chang Haonan called home the day after he traveled through time, but at that time he couldn''t control his emotions at all, so he only chatted for a few words and hung up in a hurry. Thinking about it, after getting used to it for such a long time, it should be no problem. ?Other than that... He is almost out of money. ?Originally, its almost time for a holiday now, so all I have to do with the remaining money is hold on for a few more days and then buy a train ticket to go home. But this summer vacation, he knew that he would most likely not have time to go home. So this matter must be discussed with the family in advance. ?Chang Haonans father, Chang Yuanchao, is a policeman, and his mother, Zhou Li, is a high school Chinese teacher. Yes, he was Chang Haonans Chinese teacher and head teacher in high school. ?He was able to get into Beijing University of Aeronautics and Astronautics, and it was indispensable for Ms. Zhou Lis dual mental and physical encouragement. Supposedly, such a family situation is not bad, but unfortunately my father has always had the attitude of raising children in poverty and raising daughters in wealth, so even after he went to college, he never had enough money. ?After packing all the materials and papers into his schoolbag, Chang Haonan went to the public phone booth again, took out the IC phone card with the Yellow River pattern printed on the surface, and dialed his home phone. Hello, is it brother? ??A slightly immature female voice rang on the phone. It was Chang Haonan''s younger sister, Chang Jiayao, who will be in her third year of high school in the second half of the year. Its me, why are you at home today? ?Its not dinner time yet, so Chang Jiayao shouldnt finish class so early. Brother, today is the weekend Since Teacher Liu Hongbo only borrowed the lecture theater for today, the defense review was forced to be scheduled on Sunday. However, Chang Haonan had experienced too much in the afternoon just past, so he forgot about it. Okay, are your parents at home? "I''m not here. I''m working overtime. I''ll cook for myself at night." Chang Jiayao replied with a somewhat aggrieved voice. ?Police officers are naturally busy day and night, and high school teachers may not always get a break on weekends. It is normal to be away from home. "Okay." Chang Haonan''s mood was a little complicated, not just because of the cost of living, but because he did have a feeling similar to a hometown shyness: "How is Jiayao''s recent studies?" ?This is almost a question asked subconsciously, because Chang Haonan, who has returned from rebirth, actually knows the situation of his sister. It will definitely be no problem to get into college, but it is basically impossible to get into a school like Beijing Airlines. "Oh...that''s it. If you don''t go to college, it will be no problem to go to university anyway." Chang Jiayao herself was very open-minded: "But brother, I want to ask you something." "What''s up?" ??Although Comrade Chang Yuanchao has always shown a preference for girls over boys, this has not greatly affected the relationship between Chang Haonan and his sister, except that when he was a child, he often cheated his sister of pocket money. You studied airplane design in college? Yes, the Department of Aircraft. Chang Haonan nodded and quickly searched his memory. He did not recall that his sister had shown any interest in his major. Brother, have you ever seen a moving airplane? Chang Jiayaos tone was a little excited. Of course I have. ?Chang Haonan''s answer came out of his mouth. ?But after he said this, he realized that he had probably never seen it before. Beijing Airlines has a famous aircraft museum, but the planes in it are obviously not flyable. What about the pilot? Brother, do you know the pilot? I know a few. Since they had already said they had met before, Chang Haonan simply pretended to be: Why, you are already looking for a boyfriend at such a young age? Brother, dont talk nonsense! Chang Jiayaos voice slapping the table came from the receiver: I...I want to participate in the Air Force recruitment next year. Chang Haonan was completely silenced with one sentence. ??He didn''t remember that his sister had such an incident in the original timeline. (End of this chapter) Chapter 21 Serving the country with technology Chapter 21: Serving the Country with Technology "elder brother?" After a few seconds of silence, Chang Jiayao broke the silence first. Why do you suddenly have such an idea? ?Female pilots are not recruited every year in this era, but Chang Haonan does know that next year, in 1997, the army will recruit the seventh batch of female pilots. ?Therefore, Chang Jiayao''s idea is most likely not a temporary hothead. I think the possibility of me surpassing you in the college entrance examination score is basically non-existent, but you failed to recruit pilots back then. If I can succeed, it will be considered as surpassing you in another aspect. Is that why? ?Chang Haonan is a little unbelievable. In his impression, Chang Jiayao is not a very competitive person. Chang Jiayao was silent for a long time before replying: "After I entered high school, the teachers had only two reactions when they saw me for the first time. Some would call me Teacher Zhou''s daughter, and more would She will call me Chang Haonans sister. Chang Haonan lives in a county town, and he is the best student in that high school since its establishment. Obviously, although Chang Jiayao is more favored at home, she did spend two years of high school life in the shadow of Chang Haonan. "If this is indeed your decision after serious consideration, then I support your idea." Chang Haonan changed the microphone to the other hand: "But you must not drop your studies because of this. There are also performance requirements for recruitment. , and its still very high, probably similar to the main line. In the 1990s, the later one was called Key Undergraduate Education and the second one was called General Undergraduate Education. "Well, I know." Chang Jiayao replied seriously: "But I...I''m afraid that our mother won''t agree with this. You...can you help me play the drums when you have time?" No problem. Chang Haonan nodded. After hanging up the phone with his sister, Chang Haonan took a few minutes to recover from the shock. Obviously, due to the influence of some unknown factors, or maybe because of this well-timed phone call, Chang Jiayao made a completely different choice from her previous life. The airflow generated by the butterfly''s flapping wings has gradually begun to have an impact. Then let me stir up a more violent storm Chang Haonan looked at the sunset on the horizon and muttered to himself, then took out his phone card, got on his bicycle, and rode quickly towards the canteen. Even with the help of two wheels, when he arrived at the canteen, he found that it was already full. In the end, I had to order a large potato shredded burrito to eat on the way back to the dormitory in the cart. By the way, I returned Teacher Yan Lus bicycle. When he walked to the door of the canteen, he saw a familiar figure. ?That was Yao Mengna who was also about to leave the canteen, with a man and a woman beside her. And the other party obviously noticed Chang Haonan not far away. Considering that he was now considered a prospective student of Academician Du, he planned to go over to say hello and acknowledge his relationship first. Yao ?However, before he could speak, he saw Yao Mengna turning her head and leaving quickly in the other direction. ??? Such a strange reaction filled Chang Haonan''s head with questions, but for a while he couldn''t think of any way he had offended this future senior sister. "Obviously the last time we met was normal..." Chang Haonan scratched his head, sighing in his heart that women are indeed troublesome, and took a bite of the burrito in his hand.????It tastes good, but its a pity that there is no meat in it. Chang Haonan did not find Yan Lu in the office in the dormitory area, so he had to park the bicycle downstairs and lock it, then put the key in a conspicuous place on her desk, and finally wrote a note under the key on a piece of paper. Whewwhat a beautiful day. Chang Haonan put his hands in his pockets, humming softly to the melody of "Tell the World, Tell the Future" that did not exist at this time, and prepared to go back to the dormitory to catch up on his sleep. But he met an unexpected person at the door of his dormitory building. Old Wu? ??Wu Yifan has not been back to the dormitory for more than a year. It is easier to see him here than to see Du Yishan in the aircraft department building. Nan Shen, I just went to the dormitory to look for you. Whats wrong? Chang Haonan was stunned. The relationship between the two is good, but because they have different pursuits, they rarely talk about important things. I have something to do here, and I want Nan Shen to help me. Wu Yifan looked around like a thief and made sure no one was nearby before he came over in a low voice and said: "Now there is a new domestic air-conditioning brand that wants to replace the axial flow fan of their first product indoor unit with a domestic one. I know a boss who makes air-conditioning parts and wants to take over this order, but after testing the samples provided, the other performance was OK, but the noise was extremely loud, so he wanted to find someone knowledgeable to help improve it. ?Although fans and aircraft do not seem to have a direct relationship, the essence of aerodynamics will not change, so this can be done. ? And considering that in the previous J-7 improved project, Chang Haonan has gained experience in programming and simulation using computers of this era, and the system may not even need to be launched again. But this life is very troublesome. ??Still with the same problem, the current fluent cannot generate a clear static pressure distribution cloud diagram. It needs to be calculated point by point and then drawn by hand on graph paper. The shape of the fan blades is extremely unfriendly to this process. Old Wu, its not that easy to do this with Fluent The boss said he could give you five thousand yuan, and well split it 28/20, and you get 80% after tax. Wu Yifan interrupted Chang Haonans casting movement with one sentence. So you are right to come to me, others may not be able to do it. ?Chang Haonan took a deep breath and rounded out what he just said: "Do you have all the information and computer with you?" "Why are you in a hurry? I just came to ask for your opinion. After I go back, I have to sign a contract before starting work. Although the boss and I have known each other for a long time, I am not afraid of ten thousand, just in case." ??Wu Yifan rubbed his hands as he spoke: "If everything goes well, I will bring you the information at noon tomorrow, as well as a computer and a deposit." "make a deal." Hearing Chang Haonan''s answer, Wu Yifan finally breathed a sigh of relief and said half-jokingly: "I thought someone like you, who is dedicated to serving the country with technology, would refuse." "You are so narrow-minded." Chang Haonan waved his hand and said sternly: "I use my technology to help domestic brands win the market and earn my share of the money. Why can''t I use my technology to serve the country? You can make this kind of money If you dont make money, I wont make money. Should we let those compradors and foreign companies make money? Before Chang Haonan was reborn, he had seen too many people with twisted mentality. Some academicians would be criticized for wearing brand-name clothes or even looking at the luxury cars on the booth. It was as if scientific researchers were not counted as long as they made money or wanted to make money. Its the same as making a contribution to the country. Similar ideas are also found in other fields. In the final analysis, it is to raise the standard of patriotism to the level of a saint who has no desires and desires, thereby dividing the vast majority of people into another camp. (End of this chapter) Chapter 22 Academician, please do the graduation project [Please follow up! 】 Chapter 22 Academicians please do your graduation project [Please follow up! ??Wu Yifan just acted as a middleman and could get 1,000 yuan without doing any specific work. ?However, Chang Haonan knew that he couldn''t do this kind of work that required skill in all aspects, so he didn''t feel jealous. After returning to the dormitory, everyone was there except Wu Yifan who had just left. Haonan, I heard that you were specially called over by Professor Liu this afternoon? The speaker was Liang Hao, the eldest brother in the dormitory and a member of the dormitory card club. At this time, they were sitting together as usual, holding cards in their hands, but everyone''s attention was drawn to Chang Haonan. . Yeah, what did Professor Liu tell you? Another person directly put the playing cards in his hand on the table: Have you been asked to go to his graduate school? The mentality of the few of them is basically just out of curiosity about the incredible academic master in their dormitory. ?Although all college students who graduated in 1997 are no longer allocated, because the number itself is very scarce, it is not difficult for Beijing Airlines undergraduate students to find high-paying jobs after graduation. In fact, a few years ago, many graduates did not like the assigned jobs and chose to sign contracts directly with employers, especially foreign companies. In this environment, many students have no idea of ??continuing their studies from the beginning. Wouldnt it be great to make money directly after graduation? ?Hence, even if Chang Haonan really gets a postgraduate placement, the most people can say is that he is really awesome. Let alone jealousy, the feeling of envy is actually not very common. Its just that this group of people obviously does not include Huang Zhiqiang. He was on the upper bunk and pretended to read a book seriously without raising his head, but he had already pricked up his ears and paid attention to the conversation going on below. "That''s not true. In fact, Professor Liu and I didn''t even exchange a few words in the afternoon." Chang Haonan took off his schoolbag and lay directly on his bed: "And I probably won''t go to his graduate school." "Ah?" The three people next to the table were shocked. One of them even dropped the cards in his hand: "Why? In the morning, I felt that Professor Liu wanted to accept him as a disciple on the spot, so why not let him go now? Are you a pigeon?" ??Huang Zhiqiang, who was on the upper bunk in Chang Haonan, was absolutely delighted when he heard this answer. ??He was worried that his approach in the morning was too tactful and might not be effective, but he did not expect that Professor Liu Hongbo was incredibly efficient and found out the "truth" in just a few hours. As for what happened in the afternoon, he guessed that Liu Hongbo probably called Chang Haonan over and gave him a strong scolding. "Oh, are you worthy of snatching my recommendation quota?" ??Huang Zhiqiang could no longer suppress the smile on his face, so he had to turn around and face the wall to avoid being seen by other people. At the same time, Chang Haonan also realized that several roommates might have misunderstood, but at this moment, the dormitory door was knocked again. ?Everyone looked at each other in confusion. In the end, Liang Hao quickly put away the poker cards on the table and on the ground, then stood up and opened the door. Its Sister Lu again. "Is Huang Zhiqiang in the dormitory? Professor Liu Hongbo wants to see you." Yan Lu stood at the door and did not go inside. In summer, when there are many people in the boys'' dormitory, the smell is indeed not very good. "Huh? I''m here!" Huang Zhiqiang jumped up from the bed almost instantly: "Wait for me to change clothes, and come over right away!" From his point of view, it was natural that after Professor Liu Hongbo discovered Chang Haonan''s "true face", he wanted to negotiate with him about recommending graduate students. "By the way, Sister Lu." Chang Haonan turned over and looked at Yan Lu outside the door: "I left your bicycle key on your desk for you, remember to pick it up." "I''ve got it." Yan Lu stretched out her hand and shook the key in her hand: "Huang Zhiqiang, you can also ride over. Professor Liu told me that he was looking for you in the afternoon, but you were not in the dormitory at that time." While saying these few words, Huang Zhiqiang had already changed his clothes. Before going out, he looked at Chang Haonan with a slightly contemptuous look, which made the latter a little confused.????After handing the key to Huang Zhiqiang, Yan Lu did not leave immediately. By the way, Chang Haonan, what did Academician Du say when he came to see you in the afternoon? With one sentence, the air in the entire dormitory became quiet, as if you could hear a pin drop. The playing cards Liang Hao had hidden behind his back fell to the ground. But he didn''t pick it up. Du...Academician Du? Liu Ran, who was looking down at a magazine, raised his head in astonishment. As a member of the team, he certainly knew what Huang Zhiqiang did in the morning. Although he did not participate at the time, he did not stop it. Liu Ran''s family background is average and he is ready to work after graduation. He followed Huang Zhiqiang simply because he wanted to get high marks with less worry, so that his transcript would look better and he would have some advantages when looking for a job. So his mentality has been very stable today. But when he heard Yan Lu''s words, Liu Ran still couldn''t hold himself tight. Yes, Academician Du called this afternoon and said he was looking for Chang Haonan, and Professor Liu later called and said he was looking for Huang Zhiqiang. This dormitory of yours is really awesome. Yan Lu is just the messenger, so she can only blindly guess the purpose of the two bosses. Academician Du wants me to do my graduation project in his name. After all, the matter of studying for a Ph.D. has not yet been determined in terms of procedures. Chang Haonan''s character will not publicize it everywhere, so he only talked about the graduation project. ??However, as a veteran who has been with Beijing Airlines for three years, everyone basically knows what this means. It was not Liu Hongbo who let Chang Haonan go. But he was intercepted by Academician Du... Im sorry, Haonan Nanshen! Even Liang Hao was a little envious this time: Youre so developed! A student who can become an academician is already very good. As for Chang Haonan, the academician took the initiative to invite him there. This is a completely different level again. Liu Ran, who was in the upper bunk next to him, couldn''t help but sigh and shook his head slightly as he thought about Huang Zhiqiang''s performance this morning. Obviously, not only did his team leaders plans come to nothing, but he might have even made wedding clothes for othersafter all, if Huang Zhiqiang hadnt done that, Professor Liu might not have alarmed Academician Du. Thisits unreasonable not to invite guests. The dormitory quickly started to boo. ?This can also be regarded as a traditional program for college students. Whether it is getting out of singles, winning a prize, guaranteeing a graduate degree, or other things worthy of celebration, the host must express it in some way. It doesn''t matter what you eat, the main thing is that there must be such a process. Dont worry, Ill be with you. Chang Haonan lay on the bed, waved his hands, and said in a slightly tired tone: But now you have to let me have a good sleep. (End of this chapter) Chapter 23 Stealing the chicken will lose the rice Chapter 23: Stealing the chicken but losing the rice At the same time, Huang Zhiqiang on the other side was not in such a good mood. ?Originally, he thought that Liu Hongbo would ask him to go over and discuss graduate studies directly. However, after entering the office, he was asked a lot of questions related to course design. ??And these questions are very strange. For example, why you want to design a seaplane. What was your thinking when you first started designing? Have you encountered any difficulties and how did you solve them? In short, it seems to have little to do with the design itself. Fortunately, he had read the design manual many times, and many questions could be solved directly using the contents in it. The awkward conversation lasted for almost half an hour before Liu Hongbo finally let him leave the office. Damn it, this guy didnt even look at our design plan. After leaving the teaching building, Huang Zhiqiang got on his bicycle and muttered to himself. Because many of Liu Hongbo''s questions just now were actually written in the design instructions, he had to answer them again exactly as they were. ?However, he quickly found what he thought was a reasonable reason: Maybe he doesnt understand the design process at all, so he brought me here ??That''s right, in fact Huang Zhiqiang has always looked down on teachers like Jinghang. In his opinion, these people themselves know little about aircraft design, so how can they teach students? The reason why I continue to waste time here is just to find a stepping stone so that I can go abroad to a better school in the future. Forget it, never mind... ??Huang Zhiqiang quickly decided not to consider this strange thing anymore. Anyway, the threats from Fang Haonan and Zhou Shuwan had been eliminated, and he would have one of the guaranteed graduate positions in the department anyway. ?However, ten minutes later, when he returned the bicycle to Yan Lu and returned to the dormitory, Liu Ran quietly dragged him to a corner of the corridor. Brother Qiang, let me tell you, Chang Haonan... "What? Du Yishan?" Huang Zhiqiang frowned, his slightly narrowed eyes full of confusion. He doesnt understand. ??You can obviously see that the fighter plan could never have come from those people themselves. Why can''t Liu Hongbo and Du Yishan just see it? Is their level really that bad? Or say ? Huang Zhiqiang clenched his fist, gritted his teeth and punched the wall next to him. Brother Qiang? Liu Ran looked at Huang Zhiqiang, who was already a little stunned, with a look of disappointment in his eyes. ?Compared to Chang Haonan, who was personally recruited by Du Yishan but still maintained a calm demeanor, Huang Zhiqiang''s current appearance is really far behind him. ??The reason why he took the other person to come out alone to talk about this matter was to prove that there was nothing wrong with the design plan of Chang Haonan''s team. We all met in the same dormitory without looking up, so there was no need to make the relationship so tense. ??But Huang Zhiqiangs ideas are obviously different from his. "Students, they''re all just students..." Huang Zhiqiang shook his head: "Oh, even though I knew it was copied, I just knew how to protect my feathers, a bunch of idiots who can''t even understand the design of a hydroplane..." Having said that, he still planned to study at Jinghang University after all, so he could only vent to the void, then left Liu Ran behind and returned to the dormitory alone with a gloomy expression. Behind him, Liu Ran sighed softly, and then shook his head helplessly. The next day, nine o''clock in the morning. ?Du Yishan is sitting at his desk, holding his chin in one hand and holding a red pencil in the other. What was placed in front of him was the first draft of the thesis that Chang Haonan had just handed over. Although the overall content is very different from the previous design description, it is not easy to organize it into the format of a paper in just one afternoon. After all, it has to be written again. ??Furthermore, Du Yishan originally thought that as an undergraduate had little experience in writing papers after all, there would be many areas for him to revise. However, it didnt. ?Chang Haonan''s writing style is quite skillful. Du Yishan estimated that he had to read at least hundreds of papers in related fields before he could achieve such an effect when he first started writing. In the end, he only made some changes in the data that needed to be hidden, and left the other parts untouched. "What a good young man who has both talent and hard work... I''m embarrassed to add his name." Du Yishan put the pencil aside, picked up the water glass and leaned back on the chair, taking off his glasses and rubbing himself. corner of the eye. As he gets older, he can already feel that his energy is getting less and less every year. The other side. ?Chang Haonan soon waited for Wu Yifan at the entrance of the library. ?Following the latter was another man who looked a little older, carrying a portfolio made of brown paper in his hand. This is a technician from the company I mentioned before and the bosss brother-in-law, named Hao Dagang. This is the boss I invited to help you solve your problem, Chang Haonan. Wu Yifan briefly introduced the two to each other. ?In this era, the identity of the boss''s brother-in-law has not been given certain stereotypes, and it basically means the "boss''s confidant". "Hello, classmate Chang." Hao Dagang''s attitude was quite polite, and he handed the file bag in his hand to Chang Haonan: "This is the relevant information about our fan blades. Take a look at it first. If we are sure it can be done, we will sign a contract. " The latter found a bench and sat down, pulled out the information inside and started reading it. This leaf shape was designed by...you yourself? Chang Haonan originally thought that he would see some kind of NACA standard blade shape, or simply a blade that was drawn at random, but the information not only provided a design drawing, but also detailed the design method of the blade shape. Obviously, the technical personnel of this company are not aimless. "Yes, I designed it together with my boss. Although it is very good compared with other domestic brands, it is still noisy compared with Fuji Electric products." Hao Dagang said with a little unwillingness in his tone: Because it is a new air conditioner model, the fans that everyone brings out are also new designs. On the one hand, we cannot get samples from Fuji, and on the other hand, we dont want to keep copying others. "It is a combination of two Bezier curves and two arcs, with a total of 16 modeling parameters, which is very flexible." Chang Haonan nodded repeatedly and couldn''t help but praise: "Your mathematics level is quite good. " Although from the perspective of later generations, this is not a very good design, but compared to most of the peers in this era who only copied the standard leaf shape, it is already rare to have one''s own ideas and designs. (End of this chapter) Chapter 24 Parametric reconstruction of blade airfoil and stacking lines Chapter 24 Parametric reconstruction of blade airfoil and stacking line You are worthy of being a top student of Beijing Airlines. You can tell at a glance, but I cant compare with you. I started working right after I went to a technical secondary school, and then I came out to do business with my brother-in-law. Hao Dagang waved his hand. "I''m being modest. The previous technical secondary schools were no easier to pass than the university entrance exams." Chang Haonan looked at the blade design in his hand: "If you think of nothing else, the wicker leaf shape that combines two Bezier curves is really very good. Its better than many undergraduate students. ?Wu Yifan next to him suddenly felt that there was something wrong with these words... Sigh... Whats the use of all this? Its not that I cant beat Fuji Electric. Although I dont like notebooks, I cant beat a small fan. Hao Dagang touched the top of his head and sighed: "I wonder if you can improve it?" Unknowingly, his address to Chang Haonan has become you. Well...Although Bezier curves are used a lot in aircraft airfoils and turbine machinery, the problem is still quite obvious. Chang Haonan replied: "First, it cannot make local control modifications. Any changes will affect the entire curve. At least half of the 16 parameters in this design are not independent; second, it cannot accurately express quadratic curves such as arcs, so regardless of No matter how you adjust the parameters, the smoothness cannot be guaranteed at the connection points between Bezier curves and arcs on the leaf profile. ?Seeing that Chang Haonan spoke eloquently, Hao Dagang''s face was full of excitement and anticipation: "It seems you have an idea?" ?Chang Haonan nodded and looked at Wu Yifan next to him: "Old Wu, sign the contract." Strictly speaking, Chang Haonan should be regarded as a subcontractor, but Party A of this subcontractor had the knowledge and consent. After signing, Hao Dagang took out a kraft paper envelope directly from his bag and stuffed it into Wu Yifan''s hand. Deposit, RMB 1,000. At this time, it is not a small amount of money. The latter opened the envelope and checked the amount of money, then took out two "four heads" and put them into his pocket. Finally, he handed the envelope to Chang Haonan together with the remaining money. The deal was concluded. Ill leave it to you two to optimize the blade shape. This time our boss is determined to win the order for Changhong air conditioners. I hope you can take care of me. After Hao Dagang put away the contract, he stood up and hugged Chang Haonan and Wu Yifan directly. He seemed to be a bit of a gangster. ?But it is reasonable. If you are doing business in this era and dare to run around with cash, you will always have something after all. After sending Hao Dagang away, Wu Yifan took off the schoolbag behind him and handed it to Chang Haonan: Nan Shen, how long will it take to do it? "It''s hard to say, but it will only take about a week." Chang Haonan took the backpack, which contained a laptop and floppy disk that he had become very familiar with over the past half month. One...week? ??Wu Yifan''s hands shook, but fortunately Chang Haonan had already grabbed the strap of his backpack, otherwise the computer inside would have collapsed before it could exert its full value. They told me that the original plan took more than two months to design. Well, their basic design is actually good. I will use non-uniform rational B-splines (NURBS) to parametrically reconstruct the fan blade airfoil and stacking lines, and just make a few improvements. Non-uniform...what? ??Wu Yifan suddenly felt that not only did he not learn well in his professional courses, but he might not have learned Chinese well either. It seems like you didnt attend class well last semester. Teacher Shi Fa taught you all about computer-aided geometric design. ?In order to adapt to his current status, Chang Haonan spent half a day reviewing the classes he had taken in the previous semesters. It was impossible to make any mistakes this time. "Huh? What the heck..." Wu Yifan suddenly felt a pain in his body. If he had listened to the class well last semester, he would have earned five thousand yuan now instead of just one thousand yuan. But this illusion was soon extinguished. Dont think too much. Teacher Shi only teaches the theoretical basis. The difficulty lies in the implementation. Chang Haonan patted Wu Yifan on the shoulder. In fact, this is not the first time that Chang Haonan has done this job. At the beginning of the 21st century in the previous life, he also used a similar method to design an axial flow fan with almost the same size for the Changhong Group. ?The predecessor of Sichuan Changhong Group was, after all, a military industrial enterprise that manufactured fire control radars. Although it later became a private company, it is still inextricably linked to the aviation industry. It is not unusual to entrust the latter to help with technical research. "Okay, I can''t earn your money." Wu Yifan shook his head and resigned, then took out a notebook from his pocket, wrote down a series of numbers, and tore off a page. This is my pager number. Once youre done, just ask the paging station to send me a completed message. By 1996, Chinese display pagers were already very popular. They could not only display numbers, but also receive short messages with a limited number of characters, similar to the Youth Lite version of SMS service. ??Chang Haonan had already put on his bag and walked towards the library. He just waved his hand behind to indicate that he heard. ??Although the exam week in the second semester of the junior year of the Department of Aeronautics is very leisurely, it does not mean that the same is true for other majors and grades. ?Hence, the library was undoubtedly overcrowded, and there were even many people sitting on the floor. So after borrowing a few reference books, Chang Haonan had a simple lunch and went to the computer room again with his things. Even though he didnt use the system this time, his work efficiency was still quite high. After all, he had a serious scientific research background in his previous life. How could he not even be able to complete such a small project. It''s just that it was supposed to be a step-by-step process, but after doing it, Chang Haonan began to feel a little dissatisfied. He was less than thirty years old when he worked on the project for Chang Hong. He was a newly graduated engineer. After that, he went through twenty years of experience and completed an overall design under the guidance of the system. The height has naturally far exceeded that of the past. Its done, and the performance should meet the requirements, but... Chang Haonanqie went out and took a look at the design document - there was no standard format for doing a project for a small business, so he directly used the electronic version of the design document, and then just saved it on the computer and gave it to Wu Yifan. The design object is, after all, just an air conditioner blade, and the rotational speed and gas flow rate are not very fast, so there are a lot of approximations and omissions in the design document. Its not transparent enough Chang Haonan said to himself in front of the screen. ?These approximations and omissions are certainly acceptable in the field of home appliances, but now he has some new ideas. You should be able to do better. Axial fan can essentially be regarded as a simple compressor. As an impeller machine, since the air flow in the compressor is a dilation flow, flow separation is more likely to occur and is more serious. ??Although axial fan blades with stable working conditions do not need to consider stall or surge issues, efficiency losses due to the continuous development and accumulation of the end arm boundary layer, as well as noise caused by refraction of the boundary layer, still exist. In the past, because most OEMs only required fans to meet flow requirements and were not very strict with efficiency, noise and other requirements, no one paid attention to this issue. But now that they have to fight with Fuji Electric In terms of performance It seems that we can refer to some design ideas of aircraft engine turbine compressors? (End of this chapter) Chapter 25 Thoughts inspired by fan blades Chapter 25 Thoughts inspired by fan blades ?Chang Haonan thought this way, and saved the completed first version of the design file, and then copied a copy to another new folder. No matter what field you are in, as long as you are a drawing dog, you must bear in mind the six words "save diligently and keep many files". Because this is the experience gained by countless ancestors with **** lessons. Folder renamed: Blade Design 2nd Edition. Even though Chang Haonan gained some status before his rebirth, he could only be regarded as a cog in the aviation industry. He did not have much experience in aero-engine structural design, but he still knew some basic theories and methods. So it is equivalent to practicing on this low-difficulty project. It is impossible to apply flow separation active control technology to such a small fan. It is better to consider starting from the blade shape. In this case, you can consider changing the original radial blade design to a swept blade... Select three points in the blade spanwise direction and use Lagrangian interpolation to obtain the equations used after the model is updated. The distance from the rotor center to each blade section must also be constrained to ensure that the blade area cannot increase after the design changes..." ?Chang Haonan pulled out a piece of scratch paper from the side and began to outline the steps on it. The first step is to define the three points from the leftmost to the rightmost on the straight blade as A\'', B\'', and C\'', and the corresponding three points A, B, and C on the curved blade. Let A and Point A\'' has the same coordinates and is set as the origin, and then uses Lagrangian interpolation for the three points of the curved blade. In the second step, add a constraint to the coordinates of point C, that is, the length of the connection between AC cannot exceed the original straight blade radius R, otherwise it will cause friction with the inner wall of the duct. The third step is to use Isight to integrate ICEM-CFD and Fluent to numerically optimize the blade design and ensure that the swept area of ??the curved blade is equal to that of the original straight blade, and the airfoil chord length and placement angle at each radius section remain consistent. As for this optimization process, it is another process that requires finding rules and optimal solutions through trial and error. After determining the basic idea, the remaining work is only one word. liver! ?Chang Haonan reopened CATIA and began to make modifications based on the first version of the blade. ?However, as the design of the second version became more and more perfect, his movements slowed down. The main value of simulation is to find direction. After all, it cannot completely replace experiment. When the theoretical basis is insufficient, relying on luck to reduce the consequences of experiments and forced simulations has been proven by the Boeing 737max in later generations. When designing the improved version of the J-7 before, the final step given by the system was to blow the wind tunnel, but it was just not possible due to objective conditions. Hence, Chang Haonan used a double ellipsoid model to verify the credibility of the calculation method despite the systematic endorsement. ?Besides, it is just a course design after all, and there is no need to actually produce a product. But this fan is different. There is neither systematic guidance nor a standard model with known performance to verify the simulation method. And I was going to take my stuff to confront Fuji Electric. ?Especially after he carried out the curved design of the improved first version of the blade, the applicable simulation methods have changed. This makes it more difficult to accurately obtain the improved performance. Not only did Party A feel unsure about what he was doing, but Chang Haonan, the designer, also didnt know how much he had improved after being so busy. You still have to find a place to do the experiment. He saved the second version of the design on the screen, and then realized that it was completely dark outside. Looking at the time, its almost time for the computer room to close. "I''ll go find Academician Du tomorrow and see if he can help me find a place to conduct experiments..." Chang Haonan stretched out and began to put the things on the table into his schoolbag, and secretly felt lucky that he went to the cafeteria for lunch. Lunch, otherwise I might faint from hunger now. The public security in this era is far from what it will be in the future, where you can go out and wander around in the middle of the night with peace of mind.?????In order to prevent students from getting into trouble, the school is strictly closed at night. So even though Chang Haonan had 800 yuan in cash, he couldn''t find a place to eat. Having no choice but to go to bed hungry. Early the next morning, Chang Haonan took a simple shower and went to Du Yishan''s office with his computer on his back. Hey, Xiao Chang? ?Du Yishan was startled when he saw that the person who came in was Chang Haonan. He looked at the phone he just picked up and thought to himself that the other party was here before his call came. Teacher Du! Chang Haonan was not angry and moved a stool directly to sit next to Du Yishan. "How do you know that I have finished revising the thesis?" Du Yishan tidied up the manuscript in front of him and pulled out Chang Haonan''s thesis from the pile of books next to him. "Well" "There is almost nothing I can change about your paper." Du Yishan just asked casually, so he continued without waiting for Chang Haonan to answer: "In this case, it would be inappropriate to put my name on it." "Teacher Du, what are you talking about..." Chang Haonan was interrupted by Du Yishan in the middle of his words: "Do you think I am not the fifth author of an article?" Then...you hang up the call? ?Du Yishan''s hand reached out to the triangle ruler placed on the table. "No, no, no, I''m just kidding..." Chang Haonan quickly stopped him. "You will be contacted for writing and communication. If people within the aviation system are interested in this thing, they can contact you." Du Yishan sorted out the manuscript paper in his hand: "In this case, if you want to publish the paper as soon as possible, You can consider the Journal of Aviation co-sponsored by our school and the Chinese Aeronautical Society. Are you just submitting it to the journal of your own school? If you say it out loud, it may seem a bit watery. If you polish this article, it will be submitted to the Progress of Aeronautics and Astronautics Science. Its a bit aggrieved. ? Progress in Aerospace Sciences, also known as Progress in Aerospace Sciences, is the top journal in the field. Although in principle only review articles commissioned by the editor-in-chief will be accepted, articles with significant pioneering significance submitted by veterans in the field will also be included exceptionally, which shows the importance of Chang Haonan''s article in Du Yishan''s eyes. The latter had previously considered adding his name at the end for this reason, otherwise the editor would have just glanced at the author and title and thrown it into the trash. Although the Journal of Aeronautics and Astronautics already has an English version, it has not been included in SCI in this era, and the quality is indeed inferior. ?However, for Chang Haonan, with more than 20 years of experience and systematic guidance, he doesnt care too much about where the paper is published. As long as it can be seen by your own people. "It doesn''t matter. I believe that the contribution of our China Airlines people is not reflected in the paper." Chang Haonan replied without hesitation: "The purpose of publishing this article is also to communicate with my own people. The Journal of Aviation is here Its enough. Chinese journals in the field of engineering, especially top Chinese journals such as Journal of Aeronautics and Astronautics, are still read by people in the industry. ??If what Chang Haonan has produced is a basic result in the field of mathematics or physics, then he will definitely publish it to SCI without hesitation, because I am afraid that even his own people will not read the Chinese journals in these fields... "It''s good to have this attitude. But you don''t have to hide what should be published." Du Yishan smiled happily. He found that he had underestimated the consciousness of the undergraduate in front of him: If there are really results that cannot be published even after declassification, it will be written as a national defense report. At that time, it can be recognized as an equivalent paper, and it will still be counted against you. ?Chang Haonan did not answer, just smiled and nodded. Compared with these, he is still looking forward to what kind of butterfly effect the content of the paper will trigger. (End of this chapter) Chapter 26 Issue a patent Chapter 26: Issue a patent By the way, Teacher Du, this is actually why I came to you this time... ?Chang Haonan took out a floppy disk from his bag and handed it to Du Yishan. After looking at it twice, the latter inserted the floppy disk into the computer next to him. ??Although Du Yishan is very old, his ability to accept these new things is not bad, and his computer is naturally equipped with various engineering software. This is the compressor ? ?The fan blades have changed a lot after adopting a large number of curved and swept designs. At first glance, Du Yishan thought that this precious student had designed a compressor blade by himself, but after taking a closer look, he quickly discovered that something was wrong. If nothing else, the size alone doesnt match. This is a fan blade that I improved using certain design ideas in the aviation field. Fan blade? Du Yishan glanced at Chang Haonan behind him: You take the job from outside? "I can''t hide anything from you, Teacher Du..." Chang Haonan quickly extended his thumb. "Okay, okay, stop flattering." Du Yishan waved his hand: "I''m not that kind of old timer. Scientific researchers rely on their own knowledge to earn income. This is allowed by the policy and is also advocated by the school. But you have to pay attention. The first is not to delay the main business, and the second is not to fall into the enemys sugar-coated bullets. Tell me, what do you want me to do for you? Chang Haonan quickly expressed his thoughts: "I now want to find a place to actually test the performance changes of the fan before and after the improvement, mainly efficiency and noise." "Well...I can write a note. Our college happens to have a fan duct test bench, which is together with the low-speed airfoil wind tunnel. You can use it." Du Yishan said, pulling out a stack of manuscript papers from the bookshelf and tearing off one of them. One: "But I can only wait until after get off work, and can''t delay other people''s normal work." ?Chang Haonan quickly took the note and thanked Du Yishan. By the way, Xiao Chang. Just when Chang Haonan was about to leave the office, Du Yishan suddenly called him from behind. If your improvement is really effective, remember to submit a patent application first and then hand over the plan. There are teachers who have suffered from this before. As a science and engineering university, Beijing Airlines naturally has its own metalworking center. On the one hand, it provides students with metalworking training, and on the other hand, it processes various things from glassware to metal parts for research groups in need. There was no 3D printing these days, so it was very troublesome to produce individual plastic parts. So in the end we had to adopt a compromise solution, which was to mill out a metal part and then cover it with a layer of plastic. For the research Chang Haonan is planning to conduct, apart from the heavier metal parts that may cause greater noise, there is no other impact. After spending 180 yuan and waiting for a day, Chang Haonan got the six fans that were expedited. 1 original design, 1 improved first version design, and 4 second version designs using different bending methods. I have to say that the craftsmanship of the old masters is indeed excellent, and the shoddy workmanship problem that he was most worried about did not arise because of the urgent need. Especially, the mass distribution of several fans is very uniform, which is very important for fans that need to rotate at high speed for a long time. If the center of gravity is not on the axis of the fan, it is equivalent to eccentric rotation, which will have an impact on life and performance, let alone any accurate data. It is night, the moon is dark and the wind is high, which is a good time to do experiments. Since the national standard GB/T1236 for air ducts for industrial ventilator testing has not yet been promulgated, the current testing equipment is basically diverse. Fortunately, the basic principles are the same, so Chang Haonan spent about ten minutes to figure out the test operation method, and then used unskilled movements to install the first fan on the speed control motor, and then put the pressure on the U-shaped tube Insert the meter into the static pressure hole. As for the dynamic pressure, it can be read directly with a pitot tube pressure gauge. There is no way, he really hasn''t used such a simple device in some years. Just as Chang Haonan was clumsily replacing a throttling loading plate with a 20% flow area, the door of the laboratory suddenly opened. "who!" Who is it? Two voices shouted almost at the same time. ?Especially Chang Haonan, who was concentrating on the experiment, was almost frightened. Who are you? Why are you in this laboratory? ??The person who walked in from the outside was a gentle boy who looked a little nervous. After all, the public security was not good these days, and no one could say whether there would be a thief in the school. And Chang Haonan felt that the other party seemed a bit familiar. I am an undergraduate student of our school. I came here to take a test. Academician Du Yishan signed the permission. ?Chang Haonan quickly identified himself to avoid misunderstanding. ?Sure enough, after hearing his explanation, the other party''s mood obviously relaxed a lot: "Academician Du?" Uh...yes, my supervisor for my graduation project in the second half of the year is Academician Du. While speaking, Chang Haonan finally completed the replacement of the throttling loading plate, and then handed the other party the note from Academician Du in his pocket. "Huh?" Unexpectedly, after seeing Du Yishan''s signature, the other party''s expression became more confused, and he touched his hair with one hand: "Why didn''t I know?" You are "You don''t have to. My name is Fang Zhen. I am a graduate student in Teacher Du''s research group and am in the third year of my PhD." Although Fang Zhen was still a little confused, Du Yishan''s signature on the note was definitely authentic, and it seemed unlikely. Some people pretend to be academicians and students just to borrow the laboratory. But he is the senior brother of the laboratory. Why didn''t anyone tell him about the new junior brother? "My name is Chang Haonan. I just made an agreement with Academician Du two days ago that he... will come to our group to do the graduation project." After Fang Zhen introduced himself, Chang Haonan finally remembered that he had met him in the cafeteria the day before yesterday. At that time, he He was walking with Yao Mengna and another short girl. "Teacher Du generally doesn''t want to be a graduate undergraduate, so...although I don''t know why it was confirmed so early, you should already be our future junior brother." Fang Zhen said, walking up and shaking hands with Chang Haonan. . I will not officially join the group until the end of this exam week. Academician Du should be preparing to introduce me to everyone then. Chang Haonan checked the experimental equipment one last time, turned on the power after confirming that there was nothing wrong, and then continued: "The day before yesterday, I saw you and Senior Sister Yao Mengna at the door of the cafeteria. I wanted to say hello, but I didn''t catch up." Do you know Yao Bo? ?Fang Zhen suddenly felt as if he had become an outsider in the laboratory. Yes, I have discussed some academic issues with her. Chang Haonan nodded. Well, Yao Bo is very good. He skipped the masters degree and went directly to study for a Ph.D., which is an exception. It will really be beneficial for you to communicate more with her. Fang Zhens words were not false. After changing the simulation calculation method according to Yao Mengna, although the progress was almost reset, after nearly a month of trying, he was very sure that it was the right direction. In terms of ability, Fang Zhens self-confidence is not much weaker than Yao Mengnas. But when it comes to enthusiasm for scientific research and the courage to move forward, he knows that he is indeed much worse. (End of this chapter) Chapter 27 Are you Yao Mengnas senior? Chapter 27 Are you Yao Mengnas senior? ?Chang Haonan thought about the two encounters between himself and Yao Mengna, and felt that the other party seemed a little dull... ?But he was not prepared to refute the senior brother he had just met on such a trivial matter. Hmm Indeed, she learns things quite quickly. Fortunately, the topic about Yao Mengna came to an end soon. Junior brother, are you testing the performance of some turbine blades? Fang Zhen looked at Chang Haonan, who was lowering his head to record data. No, its just an ordinary fan blade, but it uses some aviation engine design ideas. Its a good exercise for yourself. Chang Haonan told the truth. Although he only took this job because he wanted to make a lot of money at first, yesterday afternoon, he began to try to use the blade curved/swept design to control flow separation, and after simulating several different designs, he really got the idea. The control of flow separation within an impeller has led to some new understanding. Senior brother, you are here so late to do an experiment? Chang Haonan replaced a 30% throttle plate with a larger opening with a much more skillful movement than before. Thats not true. I left a book behind when I was using the low-speed airfoil wind tunnel during the day. Come and get it. Fang Zhen said, holding up a book about the DAMP language in his hand. "Huh?" Chang Haonan instantly caught the cover of the book and asked almost subconsciously: "You are quite efficient. Have you already started secondary development of MSC.NASTRAN?" "Huh?" Fang Zhen felt that he had used more interrogative words in the past ten minutes than in the past month: "How do you know we are doing this?" ?Chang Haonan scratched his head. "Uh... when I met Senior Sister Yao last time, she told me that you were using the CFD/CSD coupling method to do straight wing flutter analysis, but the efficiency was very low. I suggested that she try the dipole grid method. But we need to use DAMP language for secondary development of the software, and I didnt expect that you have already started doing it. ??However, Fang Zhen, who was holding a book opposite, was more surprised than Chang Haonan: "You mean you told Yao Bo this method?" "Yes." Chang Haonan nodded, and then told Fang Zhen the knowledge points he told Yao Mengna that day. For a time, the only sound left in the entire laboratory was the whirring sound of air flowing through the air dryer. Fang Zhen opened his mouth several times, but thousands of words were stuck in his mouth, and he didn''t know what to say. Finally, after about half a minute, Fang Zhen asked the first question with difficulty: "So you are Yao Bo''s senior?" What? ?This time it was Chang Haonan''s turn to look confused. "It''s nothing..." Fang Zhen suppressed his laughter very hard: "How about this, junior brother, you should join the team as soon as possible to familiarize yourself with the environment. I will go to the office tomorrow to clear a window seat for you with the best sunshine." "Yeah, that''s okay." Chang Haonan originally planned to take a few days off during the exam week and adjust his schedule, but since the other party has extended the invitation, it would be good to give him a little more time to adapt: ??"Then I''ll tell Teacher Du first and wait until the exam Tuesday. Join the group after the first exam. No problem, Teacher Du will definitely agree. The smile on Fang Zhens face could hardly be concealed. In order to prevent Chang Haonan from seeing his expression, he quickly turned his head slightly and happened to see the inconspicuous fans on the table next to him. At this time, the experiment on the first prototype fan blade shape has been successfully completed. ?Chang Haonan carefully replaced the second fan, which is the first version of the improved design. After restarting the power supply, even though this is not a semi-anechoic chamber for detecting noise, the difference from the previous one can be heard by human ears alone. The noise is obviously smaller. Theres something about the design of your fan. Fang Zhen leaned over and stared at the fans. Strictly speaking, they were four fans with curved blades and stared at them for a long time. "Can I pick it up?" As a graduate student who has been working in the laboratory for 6 years, he knows that samples must not be touched without permission from others. Just be careful not to fall. Chang Haonan is not afraid of being spotted. If Fang Zhen could analyze his design and calculation methods with just one pair of eyes, he would have become a protected object of the country long ago. This is...a forward-curved and forward-swept blade design? Fang Zhen asked with some uncertainty. In the field of engineering design, bending and sweeping are two different definitions. In fact, flow control is almost an eternal topic in aeroengine design, or turbine machinery design. The idea of ??controlling flow by changing the geometry of the cascade flow channels has been around since the 1960s and 1970s. Its just that for a long time, it has relied more on experience and intuition, lacking sufficient theoretical tools for guidance, so it is not surprising that Fang Zhen understands this. What Chang Haonan wants to do is to conduct a systematic study on the stacking forms of curved and swept blades on the basis of summarizing experience, so as to provide direction guidance for the design of other forms of blades in the future! ?Of course, this can only be said to be the beginning. Well, I am going to test the efficiency of different sweep effects on the impeller. Of course, this is just a fan, and the gas flow rate will not be very high. Chang Haonan had his hands busy while he was talking. He quickly changed to a new piece of graph paper and continued to draw on it. "You..." Fang Zhen originally wanted to say that it is too early for you, an undergraduate who is completing your project, to study this kind of topic. It is better to start with more practical problems first. But he quickly recalled the talent and learning ability that Yao Mengna showed when she first joined the group two years ago. And the undergraduate student in front of me... ?Although it has not been confirmed yet, Fang Zhen basically believes that the flutter simulation idea came from Chang Haonan. In other words, it may be more powerful than Yao Mengna... So he finally decided to shut up. "I don''t understand you monsters very well..." Fang Zhen shook his head and thought to himself. Senior brother, what did you just say? Chang Haonan turned around and looked at Fang Zhen, who was dazed on the spot after saying only one subject. Ah, I want to say that you have enough time to finish this project? Undergraduate graduation project is said to last one academic year, but generally speaking, excluding the time when you go home during the winter vacation and the time when you first start to get started, it actually only lasts four or five months, and it is usually something short and quick. This is not my final project. Chang Haonans final project is actually completed. "ah?" Fang Zhen became even more nervous. Even Yao Mengna spent more than five months in the laboratory to come up with the final result. After all, no matter how talented you are, some operations or experience-based things still need time to be polished. When he just entered the door, Fang Zhen saw Chang Haonan operating the equipment, which was not very skillful, so he subconsciously classified the latter as someone with rich theoretical knowledge but lack of practical experience. But on second thought, it would be nice to have someone who specializes in theory and simulation, which can save a lot of energy from other people in the laboratory. ?The only pity is that the current domestic foundation in this field is very weak, and there is not even much data. The cycle for producing results may be very long. ?But it doesnt matter, the undergraduate thesis is neither archived nor published. ?So Fang Zhen has even thought about giving some of his unpublished results to Chang Haonan for use first. At that time, his good impression of his senior brother will definitely increase gradually, and then... Then you can hand over to him all the parts of your paper that need to be simulated! Plan pass! Then Ill go back first. Junior brother, dont forget to lock the door when you finish the experiment. Fang Zhen gently put the fan back in place and left the laboratory in a good mood. He is going to bring a huge "surprise" to Yao Mengna. (End of this chapter) Chapter 28 We will have better things! Chapter 28 We will have something better! ?Chang Haonans experiment continued until dawn. The previous simulation and experimental results are exactly the same in terms of rules, which proves that his direction is correct, but the calculation accuracy under specific circumstances still needs to be improved. ?The best version has an efficiency increase of more than 25% compared to the original design, and the noise is reduced by an astonishing 10 decibels. Dont underestimate this number. Decibel is not a linear value. A 10-decibel reduction is basically equivalent to a drop to half of the original value in the perception of the human ear. This is already an exaggerated improvement. When doing testing in a semi-anechoic chamber, he could almost only hear the sound of the motor. ? Chang Haonan straightened his aching waist and moved his body slightly, listening to the crackling sound of his joints. ??His attention had been on the experiment just now, so he didn''t feel anything. But now that he relaxed, a sense of fatigue swept over his body instantly. Back in the dormitory, he fell asleep at the speed of light again after touching the pillow. This has almost become the norm since Chang Haonan was reborn. Perhaps it can be regarded as one of the benefits brought by the system. After all, he has had insomnia since high school. When I woke up, it was already afternoon. After simply washing up, Chang Haonan was going to change his clothes, then find an empty classroom to write out the patent document, and then go to the patent office to submit it. Just as he was about to go out, he happened to meet a few roommates pushing the door in from outside. They must have just returned from lunch. Nan Shen, have you read this months magazine? "Magazine?" ?Chang Haonan has been sleeping since early this morning, so of course it is impossible for him to work hard. In fact, from the time he was reborn until now, he went to the library to read the latest news the night he was eating roast duck, and then he has been busy with design work. It says that our navy may need to buy two new destroyers. Liang Hao said, pushing a magazine in his hand over: Thats the first article. ?At this time, Chang Haonan also came to his senses. It should be about the two modern-class destroyers. If we can really buy these two ships, we will at least have a way to deal with the aircraft carrier. Liang Hao was obviously very excited about this. What use are two broken ships from the Soviet Union? The missiles above have a range of just over 100 kilometers, and they have to be sunk without even being able to see the shadow of the aircraft carrier. Huang Zhiqiang glanced at Chang Haonan next to him, and climbed into bed with a nonchalant expression: "Besides, the American Arleigh Burke has served sixteen ships. Have you heard of Aegis? It can stop any aircraft or missile, if you ask me. , dont dream about dealing with other peoples aircraft carriers. The inappropriate cynicism made the atmosphere in the dormitory a bit awkward. After this period of contact, Chang Haonan has roughly recalled that this Huang Zhiqiang is a standard exquisite person according to later generations, but it was rarely particularly obvious in the past. Perhaps I was stimulated by him recently, so I became a little jumpy. You really dont need to be too excited about this. Chang Haonan smiled nonchalantly and returned the magazine to Liang Hao. He never took the other party seriously from the beginning, and there were quite a few such people even after more than twenty years. Huh? I thought you should be the happiest one. ?Liang Hao was obviously a little surprised by Chang Haonan''s reaction. Lets see, in a few years we will have something better. After Chang Haonan finished speaking, he left the dormitory directly with the schoolbag containing the computer on his back. The review of utility model patents generally takes 6-9 months, so Chang Haonan naturally cannot wait for the results to come out before giving out the plan. Fortunately, patents are calculated based on the filing date, as long as you make sure to submit it earlier than others. ??If this is a formal horizontal topic, then the ownership of this patent should actually belong to the funder. But then again, setting up a horizontal topic cannot be as simple as five thousand yuan. In short, after spending two days going to the patent office and passing the final exams of the two elective courses, Chang Haonan finally contacted Wu Yifan through the pager. Considering that the house the other party rented off campus was still some distance from the school, after hesitating for a moment, he inserted the phone card back, opened the notebook he carried with him, and dialed his home number. "Hello?" When he heard his father''s voice again, his mood was much calmer than last time. Hello, Dad, its me. Yes, its exam week, but there are no important exams this semester. You are talking about the aircraft design course. There is no final exam in that course. There is a course design, which is the course I mentioned before about designing fighter jets. Well, of course its been designed, and I dont care whose son I am. "...It''s like this. Because of the course design, there is now an academician of our college, who is the former member of the academic department. He thinks that I have good potential and wants me to join the research group in advance to participate in research, so I will not go back during the summer vacation. Next time I should go back during the Spring Festival next year. Money is fine... I still have some money, so dont worry, I should have a scholarship in the second half of the year, dont worry. By the way, Jia Yao told me before that she wants to participate in next years recruitment. Has she told you about this... Oh well, whats Dads idea..." Well, I also think that Yaoyaos intention should be respected, but the prerequisite is that she must have thought about it herself and not regret it after making the decision... Thats it for now, no more chatting, I have a classmate who came to see me... ?Chang Haonan hung up the phone, closed his eyes and took a deep breath, then pulled out the IC card and opened the door of the phone booth. Wu Yifan was already waiting outside at this time. Nan Shen, you are really awesome. I originally thought that one week was an exaggeration, but it turned out to be less than four days "That''s right, don''t look at who we are..." Chang Haonan said, taking off his schoolbag and handing it to the other party: "The final design plan is in two floppy disks, and I wrote labels on them." "Okay, but Nan Shen, the final payment may have to wait for a while. The contract states that it must be settled after they win the bid." Wu Yifan was a little worried that Chang Haonan was thinking too much about money: "But if you need money urgently, If so, I can give you some money first." ?Brothers have to settle accounts clearly. Although the two of them usually have a good relationship, they still need to be clear about matters involving money. No need, how can I still not trust you? Chang Haonan punched Wu Yifan on the shoulder and said with a smile. ?Wu Yifan in his previous life had made hundreds of millions of dollars, and he didn''t deny that these old classmates, who didn''t have much money in their pockets, could still be trusted in terms of their character. ?Moreover, judging from the fact that he can easily buy a second-hand Jiujiuxin laptop, he won''t think much about the few thousand yuan. After handing the things to Wu Yifan, Chang Haonan took another look at his system. Since this fan has not had any impact yet, the number of research points remains unchanged. But [Engineering Experience] has become 60/1000, an increase of 40 points! (End of this chapter) Chapter 29 The regret of domestic passenger aircraft Chapter 29 The Regrets of Domestic Airliners You know, the J-7 improved design completed by Chang Haonan only provided 20 points of engineering experience. Although this fan used some aero-engine design ideas, it cannot be regarded as a big project after all, even if it is added with The experiment only took two days. ?The only possible explanation is obviousa study that has been experimentally implemented and finally implemented will gain more experience than a study that only performed computational simulations. It is quite reasonable. So if you want to accumulate experience quickly, you have to get in touch with actual projects as soon as possible. You have to join the group as soon as possible! ?Thinking of this, Chang Haonan turned back to the public phone booth and dialed the number of Du Yishan''s office. ?Early the next morning, in the Aircraft Department Building, in the student office of Du Yishans research group. Junior brother, this is your place from now on. ?Fang Zhen brought Chang Haonan to a desk by the window and patted him on the shoulder. It can be seen that this table has been specially taken care of. Although mottled marks can still be seen on the table legs and drawers, it can be seen that the green velvet cloth covering the tabletop and the transparent glass pressed on the top are all new. on. Okay, thank you, senior brother. Chang Haonan said as he put some of his personal belongings, such as pen holders, cups, draft papers, etc. on the table. "Junior brother, you can read the books or the materials on the bookshelf over there first. Just be careful not to get them dirty or broken. I''ll go and get started first." After arranging Chang Haonan''s position, Fang Zhen returned to his position and started working hard. The former came to the bookshelf, ready to look for materials related to the wing flutter analysis. ?His luck was good, and he quickly found two file boxes labeled "Yun-7-200A Passenger Aircraft Wings" on the second floor of the bookshelf. ??Although Yao Mengna did not clearly state the object of their research that day, it seems that the only one that can be matched at this point in time is the passenger aircraft project later known as the MA-60. MA-60 is the first domestic passenger aircraft designed to fully adopt standards that are in line with the worlds advanced levels. It can basically be regarded as the starting point of Chinas modern passenger aircraft industry. ?But on the other hand, the first time means no experience, so this model actually left a lot of regrets in the original timeline. Overly conservative wing design is one of them. This time, he was prepared to make up for this regret personally. ?After spending half a minute confirming that there were no words such as "confidential" on the two file boxes, Chang Haonan returned to his desk holding the two boxes of information. Brother Fang, what step have you taken on the subject of flutter analysis of large aspect ratio wings? ?Fang Zhen raised his head and immediately saw the file box in Chang Haonan''s hand. "Following Yao Bo...oh no, following your previous ideas, we completed the finite element model of the wing on the MSC.NASTRAN software, and then calculated the first five natural modes and natural frequencies of the wing. Now Yao Bo and I am trying to perform flutter analysis using p-k method and v-g method respectively." It must be said that as students of Du Yishan, Fang Zhen and Yao Mengna do have something. It has been less than a month since they changed their new ideas, and they have to learn and do at the same time. Their progress is already quite good. Chang Haonan was secretly glad that he had asked this question in advance, otherwise he would have wasted a lot of time on repetitive work. What, junior brother is going to help us finish the rest of the work? Fang Zhen asked half-jokingly. Well... you should be almost done with the linear flutter analysis. Im going to try to see if I can get rid of the nonlinear part. ?Chang Haonan''s answer made Fang Zhen, who had just lowered his head, instantly look at him again. Linear analysis and nonlinear analysis are the same word, but the applicable theoretical foundations are vastly different. In some special cases, the elastic deformation amplitude of the aircraft wing will be very large. At this time, the relationship between strain and displacement is no longer linear. The linear theory based on the small deformation assumption that Chang Haonan and Yao Mengna said before is no longer applicable. , new theoretical tools are needed for guidance. There is no particularly reliable method in engineering. You must know that once flutter is induced, the best result is permanent damage to the aircraft structure. If you are not careful, the aircraft will be destroyed and people will be killed. There is almost no way to save it by pilot skills like stalling or spin. Therefore, a correction is generally added directly to the linear analysis results and a sufficient safety margin is left in the results. ?Of course, if you have unlimited money and time, you can build every type of wing and pile up test flight data to achieve miracles. But apparently even Americans cant bear this consumption... This is also one of the reasons why wing designs are generally conservative. Chang Haonan opened his mouth to do nonlinear flutter analysis. ?Although the previous linear analysis ideas were provided by him, using the dipole grid method is, after all, a summary of the existing theory. ??Nonlinear analysis relies heavily on the engineering experience of the analyst In short, Fang Zhen doesnt think Chang Haonan has really made any breakthrough in this area, but he will not dampen the opponents enthusiasm. Thats okay, you can try different correction methods. When the linear analysis results come out, we can compare them with the experimental results and make the correction factors more accurate. This time, Chang Haonan did not answer, but lowered his head and silently picked up the pen. As a reborn person, he knows very well that the current wild approach that relies on correction factors cannot be accurate. Furthermore, all flutter analyzes in this era are based on the overall calculation of the wing as a fixed structure. But in fact, there are aerodynamic control surfaces such as **** and ailerons on the wings of the aircraft. They also have an impact on the aeroelasticity of the wing. More importantly, later aircraft designers have proven that the distribution of aerodynamic loads in the aircraft flow field can be changed through the control torque generated by the deflection of the control surface, thus destroying the original self-oscillation coupling mechanism and making the entire closed-loop system regain its normal state. to stability. ?The principle is actually very simple: The motion signal of the aircraft is input to the control system through the sensor, and the control signal generated by the control system is input to the actuator to cause the deflection of the control surface. The control force generated by the deflection of the control surface is finally fed back to the aircraft, thereby suppressing the unstable vibration of the system. . So it is also called chatter active suppression. ?The biggest advantage of this idea is that there is no need to modify the wing design at all, just upgrade the flight control and sensors. According to the experience of later generations, it is not a problem to increase the critical speed of flutter by about 10%. What he has to do now is to reproduce everything in his memory! ? Time passed by, and after the regular breakfast time, a few more people walked into the office. Fang Zhen gave a brief introduction, but at this time Chang Haonan''s thoughts were already immersed in the materials spread out on the table. He simply said hello and continued to write and calculate on the draft paper. Because he discovered that the wing design provided in the information had far greater potential than he had previously imagined! What a great idea ?Compared with the wing actually installed on the MA-60, the wing in front of you is lighter, has a larger aspect ratio, and also has a winglet. This means lower flight resistance, faster flight speed and lower fuel consumption. For a passenger aircraft that is ready for commercial operations, this is the core competitiveness. Of course, as a price, the aerodynamic characteristics of such a wing are more complex, the design is more difficult and risky, and it is more prone to flutter. ? Perhaps it is for this reason that in the previous life, MA60 finally chose the original conservative plan. But now, such a regret will never happen again! (End of this chapter) Chapter 30 One day, solve the puzzle! Chapter 30: Solve the problem in one day! After almost a whole morning passed, Chang Haonan finally put down the pen in his hand. On the draft paper next to it, the mathematical theory and analysis process for nonlinear flutter analysis of the wing are densely listed, as well as the aerodynamic servoelastic modeling method that takes into account aerodynamic control force. ? ? Next, you only need to spend some time modifying the flutter analysis module of MSC.NASTRAN to start simulation calculations. ?At this time, the door of the laboratory was pushed open again, and a tall figure wearing a dress appeared at the door. I just brought you lunch when I came back from the computer room. Come here to get it! Its Yao Mengnas voice. Thank you Yao Bo! Long live Yao Bo! ?Everyone else in the office rushed to the door as fast as possible, leaving only Fang Zhen and Chang Haonan still there. Yao Bo, a new person came to our laboratory today. Didnt you bring him food? Fang Zhen said with a sly smile on his face. Newcomer? I dont know, who is it? ?Yao Mengna squeezed through the crowd with difficulty and placed a lunch box on Fang Zhen''s table. Im your senior. Fang Zhen ignored the lunch box on the table and pointed at Chang Haonan who just raised his head. Senior? Yao Mengna looked in the direction pointed by the chopsticks in Fang Zhens hand with a confused look on her face. Chang Haonan also looked at the two doctors on the other side of the office blankly - he had heard the term "senior" from Fang Zhen the night he first met him, but because he was busy doing experiments, he quickly understood it. Forgot about it. Howhowhow is it? Yao Mengnas cheeks turned pink almost at a speed visible to the naked eye. ?At this time, other people who had received their own portions of lunch boxes also returned to their seats, and soon noticed Yao Mengna''s strange expression. Why does Senior Sister Yao look at Junior Brother like this? Xia Tian picked up a piece of green pepper from the lunch box and stuffed it into his mouth, asking curiously. Chang Haonan curled his lips. ??Its just a junior brother, what the **** is a junior brother... "Maybe...maybe it''s because I met the senior I haven''t seen for a long time..." Fang Zhen was laughing so much that he almost fell on the table. Ah? Isnt this the junior who will be a senior in college next semester? Several other people in the office had gossip in their eyes. ?The first person to react was Xia Tian. After all, she had dinner with Yao Mengna and Fang Zhen that day. Oh, hes the one ?Xia Tian covered her mouth with one hand and didn''t even notice that the potato slices she had just picked up fell off. ?That very effective simulation idea was actually told to Yao Mengna by this junior fellow who was only in his junior year! Junior sister Xia Tian, ??whats going on? Everyones eyes turned to Xia Tian. "summer!" ?Yao Mengna raised her eyebrows and clenched her fist fiercely into the air in front of her. Xia Tian, ??who was about to explain, shrank his head and immediately retreated. ?However, as the senior brother, Fang Zhen was "not afraid of power" after all and told the whole story. By the time he finished speaking, Yao Mengna had already leaned back on her desk to pretend to be an ostrich, not raising her head no matter how she screamed. The society is dead.?????In short, I regret it very much. Very regretful. It was just a casual comment at the time. Who would have thought that he would become a junior fellow student in the same laboratory... When she thought about having to be classmates with her for at least three years in the future, Yao Mengna felt that the whole world had become gloomy. "Don''t be like this, don''t be like this." Chang Haonan really didn''t expect that Yao Mengna would give herself such a title: "I shouldn''t be that old." After saying this, I couldnt hold back my laughter. I ate a lot for breakfast, and Im not hungry yet. Junior brother, just eat my share. ?Fang Zhen, who had finally laughed enough, stood up and placed the unopened lunch box on his desk in front of Chang Haonan. ?This also allowed him to see the dozen or so pieces of draft paper scattered on Chang Haonan''s table. . Huh? Fang Zhens expression suddenly became serious: This is...Lagrangian-Green strain, and...Kirchhoff stress tensor...Are you trying to rewrite the dynamic equations of the wing structure under nonlinear conditions?" Senior brother is awesome, you can tell at a glance. Chang Haonan put down the pencil in his hand, and then gathered the spread out draft paper. Fang Zhen was a little smug when he heard this compliment, but then he immediately realized it - if he understood it, he was very powerful, so wouldn''t Chang Haonan himself, who derived the equation, be even more awesome? Who is this sentence praising? Ahemlets not talk about this for now, where are you going? Forget it. Chang Haonan organized the draft paper and put it aside, then opened the lunch box on the table, with the same expression on his face. The short answer and the flat tone seem to be talking about a trivial matter. ??But Fang Zhen knew what this junior brother was doing in the morning, so after hearing these three words, his whole body was immediately excited. Is it over? Fang Zhen almost trembled and stretched out his hand to the pieces of draft paper: Can I take a look? Just take a look. Chang Haonan was concentrating on cooking and replied without raising his head. ?About twenty minutes later, Fang Zhen was still standing there like a sculpture, but his expression had changed from the relaxed and carefree expression at the beginning to a frown. Not only does the mathematical knowledge involved in the later content become more profound, but more importantly... ?Chang Haonan must have entered the state, so when it came to the last few pages, the handwriting on it was really a bit fast and furious. Senior brother Fang Zhen, what are you looking at so seriously? ?At this time, everyone had finished eating and was about to enter lunch break, but Fang Zhen standing behind Chang Haonan looked extremely eye-catching. Our junior has derived the generalized aeroelastic equation under nonlinear flutter conditions Although there were two pages of content that he didnt quite understand, Fang Zhen still understood the final conclusion. Chang Haonan was eating his rice when he heard Fang Zhens words, but he still took the time to add: Not just that, but also the aeroservoelastic system state space equation that takes into account the wing control surface, so that the effect of the flaperons can be taken into account in the wing modeling. Those two sentences made the entire laboratory fall into a dead silence. ? Even Yao Mengna, who had been pretending to be an ostrich just now, raised her head, and even the flush on her face faded a lot. They certainly know what the generalized aeroelastic equation means. As long as this equation is solved and then processed very simply, the critical speed of the nonlinear flutter of the wing can be obtained. As for the equation Chang Haonan mentioned later, not many people care about it. Its not that everyone doesnt understand, but at this time, active flutter suppression is not yet an obvious science, so introducing movable control surfaces into wing modeling seems to be a thankless task. But actually, that was the focus of his work this morning! Thanks to book friend [Lost Pigeon] for the 2000 starting coin reward (End of this chapter) Chapter 31 Brand new engineering model Chapter 31 A new engineering model At this time, Fang Zhen also returned the draft paper to Chang Haonan: Junior brother, can you tell me the content of the last few pages? I really cant see clearly what you wrote... ??He finally realized that he had underestimated the other party''s ability before, and he was actually planning to use some of his achievements to make a graduation project for others... Fang Zhen was extremely glad that he did not say this out loud at the time, otherwise he would probably be even more embarrassed than Yao Mengna now - if what was written on the paper was correct, then what Chang Haonan had achieved in the three hours just this morning, It is bigger than the three years of his Ph.D. combined. Everyone in the laboratory has gathered around. HmmIm in a state of mind when I write this. Its really a bit confusing. Of course Chang Haonan didnt know what Fang Zhen was thinking, so he just took it and took a look: In this paragraph, I want to linearize the wing model at the static equilibrium position and calculate the linearized mode of the wing in the trim state..." Assuming that the static deformation of a large aspect ratio wing under given flight conditions and self-weight is u, and the wing vibrates slightly at the static equilibrium position, the displacement of each point on the wing can be expressed as..." "For a large aspect ratio wing model that takes geometric nonlinear factors into account, after extracting its nonlinear orthogonal modes, the motion equations of the structure can be converted to modal coordinates based on the modal superposition principle. The specific form is paper That equation with the number 33 on it. Then rewrite it into the Laplace domain and introduce artificial damping g. By selecting a series of appropriate modes, the generalized aeroelastic equation in the frequency domain can be established..." ?Although this is not a purely mathematical problem, it undoubtedly requires a deep mathematical foundation. Therefore, when Chang Haonan was halfway through his lecture, everyone except Fang Zhen and Yao Mengna had already withdrawn. Can''t understand! The two doctors who had listened to the whole story looked at each other and saw shock in each other''s eyes. They understood it and found no logical loopholes in the whole process. So the next step is to modify the program, analyze the wing flutter situation according to the theory on the draft paper, and calculate the flutter critical speed. ??If the calculated results and actual results can match... That means Chang Haonan has created a new engineering model. Although it cannot be called a complete theory, it is definitely an achievement that can leave its name in the history of the aviation industry. It only took one morning! Ill do the programming! ?Although he is a relatively conservative person in character, this does not mean that Fang Zhen does not have dreams. ??And if you can participate in the verification process of this model, his name Fang Zhen may also appear in some future textbooks or manuals. No doctor can resist such temptation. ?Hence, Fang Zhen seemed to be more anxious than Chang Haonan himself. Almost instantly, he rushed to sit down in front of the computer desk not far away and pressed the power button at the same time. There are three public computers in the student office, but because the building has not been renovated, they can only be connected to the LAN. If you want to connect to the public network and want to check information or download something, you have to go to the computer room. ?This is also why Chang Haonan met Yao Mengna in the computer room on the day he was reborn. You dont need to change the wing modeling, right? Fang Zhen said, clicking on a project file and showing Chang Haonan a look at the wing model and mesh division. "Of course it needs to be changed. Flaps and ailerons must be modeled separately, and the previous methods of calculating the first to fifth order natural vibration shapes have also changed. The static displacement of the wing structure under the action of its own weight must first be calculated and the displacement column vector output Ug, perform static aeroelastic analysis on the root-fixed wing model, output the static aerodynamic influence coefficient matrix Q, and then..." Repeat the above steps until the obtained static aerodynamic force no longer changes within the error range. At this time, the output structural node displacement array is the nonlinear static deformation of the wing model under its own weight and given flight conditions..." At first, Fang Zhen confidently listened to the calculation process described by Chang Haonan and prepared to program the calculations, but soon he showed a confused look, and finally fell back, leaning on the backrest slightly decadently. superior. ?Although I understand what Chang Haonan means, many of the theories required for the solution steps are not directly preset in the aeroelasticity module of the MSC.NASTRAN software. For example, the most critical step is to replace the default linear mode in the module with a linear mode.?????As he had just learned the DAMP language for a short time, he really did not have the confidence to modify this module. ?The opportunity to leave a name in the history of the aviation industry seems to have just passed away... Yao Bo, why dont you come and give it a try? ?Fang Zhen looked at Yao Mengna behind him "I" ?It seems that the other party''s situation is similar to mine. This made him feel a little relieved. As for Chang Haonan... Fang Zhen no longer regards the former as a normal person. Forget it, Ill do it. Chang Haonan placed the last piece of scratch paper next to the computer. On it were written the six steps of the analysis process. ?Fang Zhen, who was granted amnesty, quickly gave up his position and secretly swore in his heart that he would never be so impulsive again. Shame on you... ?Fang Zhen secretly glanced back at the other people in the office. Fortunately, everyone was taking a lunch break or doing their own work, so no one noticed what was going on here. Chang Haonan, who was sitting in front of the computer, had already begun the process of reconstructing the analysis module code. ?Although there is no efficiency blessing provided by the system, as a veteran in this area, his movements are still relatively smooth. Soon, Fang Zhen and Yao Mengna moved two small benches, holding notebooks on the left and right, and sat behind Chang Haonan and started taking notes. Yao Mengna was even a little touched in her heart - she had seen Chang Haonan''s exaggerated programming efficiency in the computer room before, so she almost subconsciously thought that the other party had deliberately slowed down this time so that she, with a weak foundation, could understand it. Although this junior may sometimes act like he doesnt deserve a beating, he is actually quite enthusiastic. He seems to be cold on the outside but hot on the inside ?Yao Mengna was thinking this while staring at the lines of code that appeared one after another on the screen. ? ? From the corner of her eye, she could just see Chang Haonan''s side face illuminated by the CRT monitor. And from this angle...it seems to look pretty good. When Fang Zhens notes reached the fourth page, Chang Haonans program was finally modified. The next step is to modify the model and then import it for calculation. It belongs to the field of slow work and careful work, and the technical content is not too high. Junior brother, Fang Bo and I will do the work of modifying the modeling. You go and take a rest. ?Yao Mengna noticed that Chang Haonan''s face looked a little tired, so she patted his shoulder lightly and said. "Okay, I''m going to take a nap. I''ve finished the program. After you build the model, you can import it and try to calculate it to see if the results can come out normally." Due to staying up all night like crazy some time ago, his biological clock is indeed a bit messed up now, and it will take some time to adjust it back. (End of this chapter) Chapter 32 The result is out Chapter 32 is out ?Chang Haonan was woken up by a burst of cheers. He opened his eyes with some struggle and stared at the rotating ceiling fan on the ceiling for a second. At this time a voice shouted: "The results are out!" ?After sitting up, he realized that not only Fang Zhen and Yao Mengna were standing in front of the computer, but even Du Yishan didn''t know when he came here. ?Different from Yao Mengna and Fang Zhen who were staring closely at the calculation results, Du Yishan was holding the pages of manuscript paper in his hand and had read them over and over several times. Compared to the two doctoral students, Du Yishan''s theoretical foundation and experience are naturally better, so even though the writing above is a bit sloppy, he still fully understands the content. ??But at the age of seventy, he actually had a feeling of enlightenment because of these few pages of draft paper! Exquisite! ?Du Yishan flicked a few pieces of draft paper with his left hand, turned around and looked at Chang Haonan, who had woken up. Xiao Chang, your modeling idea is so exquisite! "Based on the transonic small perturbation theory, the nonlinear finite element is combined with the nonlinear beam model to calculate the impact of geometric nonlinear factors on the aerodynamic characteristics of large aspect ratio wings, and the aircraft is also considered during modeling. The factors of the aerodynamic control surface in the wing structure are not only flutter problems, but this idea can even be used to solve other design problems. " Twenty-two years have passed since the Dewey-Hodges equation in 1974. Finally, another big step has been taken in the field of nonlinear flutter analysis, and it was taken by us Chinese! ?Others in the laboratory looked at this scene in stunned silence. In almost everyones impression, Du Yishan always looks as stable as Mount Tai. ?Now, he was pacing back and forth in the laboratory with a few sheets of manuscript paper in his hands with excitement on his face. Teacher Du, lets take a look at the simulation results first. Finally, Chang Haonan reminded him, which brought Du Yishans attention back to the computer screen not far away. One of the most important results of flutter analysis is the "flutter critical speed". Under ideal circumstances, once the aircraft reaches this speed, it will induce wing flutter. Therefore, the higher the data, the better, indicating that the wing is less likely to flutter. Vibrate. However, the flutter critical speed is not calculated directly. Instead, the V-g diagram and V-f diagram must be drawn based on the calculation results before making a judgment. Fang Zhen and Yao Mengna have already started to do this. A few minutes later. Teacher Du, junior brother, weve figured it out. Fang Zhen put the pencil on the table and stood up with a piece of paper, but his expression looked a little solemn: When considering nonlinear geometric factors, the critical speed of flutter is 157m/s, which is 10m/s higher than the data speculated by the British expert, but..." When the number 157m/s was said, I dont know if it was Chang Haonans illusion. He always felt that the atmosphere in the laboratory suddenly solidified for a moment. British expert? ?Chang Haonan noticed that Fang Zhen just mentioned these four words. Speaking of which, although he has solved the entire problem, because he came here and started working since early in the morning, he is only focused on the technical issues related to the project and has no idea about the ins and outs of the project itself. In the last life, Chang Haonan missed the postgraduate entrance examination, so he spent the entire first semester of his senior year preparing for the postgraduate entrance examination. His graduation project was also done with an unknown young teacher, so he missed the opportunity to participate. ?These experiences related to flutter analysis were accumulated when he later participated in a certain long-endurance UAV project. Oh, junior brother, its only your first day in the group, so you probably dont know these things yet Finally, Fang Zhen gave a brief introduction to the project. Since this is the first time that China has designed an aircraft with complete reference to international standards, and directly used many subsystems from European and American companies, Institute 603 has invited many foreign experts in related fields as consultants, including an aeroelasticity expert. Analyzed by Englishman Hogent. When designing a new passenger aircraft, the 603 Research Institute referred to the experience of the Y7-100 aircraft and designed the wing that Chang Haonan and the others are currently analyzing. However, during the feasibility evaluation process, this wing design with advanced concepts and excellent performance was rejected by Hogent, because based on his own experience, he calculated that the critical flutter speed of this wing is only 147m/s, which is 530km. /h. For an aircraft with a maximum cruising speed of 510km/h, this is almost equivalent to leaving no safety margin. A slight dive of the aircraft may induce flutter. Considering that China Aviation Industry has almost zero experience in this area, the first model to connect with the international market must naturally focus on safety. Hence, the 01 aircraft currently undergoing airworthiness testing is still equipped with a set of relatively conservatively designed wings to ensure safety. But the designers of Institute 603 are not reconciled, because according to the current design, the Y7-200A has no advantage at all when facing propeller regional airliners of the same level as ATR42/72. With the same performance, why would others abandon mature aircraft to buy your new model? The only way is to go the cheap route. ?However, the low-cost route means low profit margins, and low profit margins will lead to a lack of funds for subsequent upgrades of the aircraft. In the end, it will be slow step by step, and it will be left behind by those foreign peers. So the 603 Institute still hopes to make some advantages in performance. ?At this time, with the last glimmer of hope, I found Du Yishans research team. So thats it. After hearing the whole story, Chang Haonan suddenly realized that in later generations, he really didnt know that such a story existed. "I heard from people at the 603 Institute that if this wing can be replaced, it can achieve a drag reduction effect of about 5%. Combined with the reduced weight, the overall fuel consumption can be reduced by almost 8%. For airlines, This is already a huge attraction. Fang Zhen looked at the calculation results in his hand and said with some regret. Although our calculation result is higher, it is equivalent to 565km/h, which is still not enough safety margin. China''s current national standard CCAR25 requires that at least 15% of the flutter critical speed be retained. Alas Yao Mengna rubbed her temples and sighed, but she still raised her head and comforted Chang Haonan: "Although this wing was ultimately proven not to meet the requirements, your method of analyzing nonlinear flutter should still be fine. When the time comes, we will find opportunities to verify it on other models, and we will definitely get good results. " "etc" Chang Haonan feels a little speechless about the current situation - his performance is obviously not over yet, why do these people all look like they have failed... Brothers and sisters, dont worry, there is still room for saving this wing. ?Yao Mengna and Fang Zhen looked at Chang Haonan for an instant. (End of this chapter) Chapter 33 This result cannot be made public! (2-in-1) Chapter 33 This result cannot be made public! (2-in-1) ??However, the surprise in Fang Zhen''s eyes only lasted for a moment. "Junior brother, if you want to redesign the wing, it will definitely affect the whole body. The overall structural characteristics of the aircraft will be changed, and it may also involve a higher level of materials and manufacturing technology, both in terms of cost and capability... " Fang Zhens concerns are actually justified. Because products dont grow on their own on the shelf. No matter how miraculous abilities Chang Haonan shows, things in the engineering field must eventually be implemented into production and manufacturing. But this field cannot be promoted by the flash of inspiration of one or two geniuses. ? Even if you have prepared raw materials, machinery and equipment, and a full set of technical documents, just cultivating workers who can adapt to new equipment and new technologies will not be achieved overnight. The wing design scheme in their hands has basically reached the current upper limit in this regard. ?But this time, before Chang Haonan could explain, Du Yishan spoke first. "I think according to the calculations written by Xiao Chang, we should consider using active suppression methods without modifying the wing design?" Although he has long passed the golden age of doing research, Du Yishan is experienced and well-informed after all, so he can see far more from those ten pieces of draft paper than two PhDs. Yes, Teacher Du is right. Chang Haonan nodded and continued: We can use model predictive control (MPC) theory to handle the constrained control system through rolling optimization and feedback correction to achieve active suppression of chatter. Thats why you need to consider the influence of the flaperons and do aerodynamic servo elastic modeling? Yao Mengnas eyes lit up. She was just thinking about why Chang Haonan did this. ??At first I thought it was just the other party''s obsessive-compulsive disorder causing trouble, but I didn''t expect that there was a greater purpose behind it. ?Thinking of this, Yao Mengna sighed softly in her heart. At the beginning, she still felt a little unwilling to admit defeat towards Chang Haonan. But now... Recognize the reality. Chang Haonan nodded: "Of course, but there is no need to re-simulate this time. Just apply an MPC control signal to the wingtip acceleration curve just calculated. I have already written the specific control rate into the program before." He has already said this. How can the two doctors not understand? Fang Zhen quickly came to the computer again and began to process the data. The next ten minutes felt like ten hours. After applying MPC control to the wing, the flutter critical speed increased to...175m/s. Fang Zhen''s voice was trembling. Thats no problem, 175m/s is equivalent to 630km/h, and the safety margin is almost a quarter. Chang Haonan''s mentality at this time was very stable: "So our passenger aircraft can completely use this new wing design!" ?However, this time it was Yao Mengna who was worried. After hesitating for a few seconds, she spoke in a voice that only four people could hear: "But teacher, Junior Brother Chang, this is a brand-new engineering model after all. Professor Huo Jint is a foreign expert hired with a lot of money by the Haojing 603 Institute. The results are so different at once. Do you think they can really dare to use it?" "?" ?Oddly enough, Yao Mengna was usually fearless when doing scientific research, but this time she was a little worried for the first time. Foreign experts? At this time, Du Yishan also recovered from the initial excitement: Hmm, whats wrong with the foreign expert? Does what he says as an Englishman must be right? As he spoke, he stretched out **** and knocked on the table next to him: "Since the 603 Institute has given this project to us, it means that they at least have this idea and the courage." Then our topic is... basically finished? Fang Zhen next to him couldnt even believe what was happening. You know, just one day ago, he and Yao Mengna were still struggling with the idea of ??nonlinear simulation. One day later, this problem was easily solved by a new undergraduate student who joined the research team. By the way, the problem of the wing flutter critical speed being too low was also solved. You have to take your time to complete the project. At least the final report needs to be polished. Du Yishan looked at the paper with the calculation results written on it in front of Fang Zhen and said: I will go to Haojing in person tomorrow and explain the situation clearly to Comrade Zhou Yonghang and Comrade Yi Yuanhe. This is not just a problem of an air wing, nor is it just a passenger aircraft project. Zhou Yonghang is now the director of Haojing Institute 603, and Yi Yuanhe is the chief engineer. They must sign and agree to replace the wings and conduct flutter tests again, a risky test subject. Chang Haonan next to him remained silent, but he was already overjoyed in his heart. As an academician, Du Yishan no longer holds a front-line position, but his influence is still there after all. If he comes forward, there is a high probability that the 603 Institute will choose to believe this result and conduct a series of subsequent flight tests. Once the test shows that there is no problem with this method, Chang Haonan, its creator, will definitely be noticed and can at least participate in the MA-60 follow-up project. ?Compared to his initial plan to start with Professor Liu Hongbo and then gradually get in touch with the MA60 project, the progress has been made many times faster. "It''s just Xiao Chang." Du Yishan pulled a chair and sat next to Chang Haonan: "Your model involves our specific model design, and it has a wide range of applications. It will play a role in the entire aircraft design, especially in the field of passenger aircraft design. It has a huge effect, so... Im afraid it wont be suitable for public release in the short term. ?Chang Haonan was stunned. You mean Obviously, since Du Yishan just expressed his intention to go to Haojing in person, he must not be prepared to hold on to this result. Hence the only possibility is Let the 603 Institute conduct verification first. If it is confirmed to be feasible, it will become the internal design material of our national aviation system. Du Yishan took off his glasses, wiped them with his clothes and put them back on: Only this kind of internal material, very few people can see it. "It doesn''t matter, Mr. Du." Chang Haonan smiled and replied in a nonchalant tone: "I have told you before that I think the value of our China Airlines people is not reflected through papers." How could he be satisfied with gaining a little fame in the academic circle after reviving his life with the system? ?The top priority is to find ways to get access to higher-end projects as soon as possible, obtain more resources, and help China''s aviation industry, and even the overall industrial development, get on the fast track. The paper is just a means to him, not an end! The previous improved design of the J-7 was said to be a second-and-a-half-generation improved model, and it was just a course design assignment, so it was necessary to use the influence of the journal to let others see it. The meaning and importance of the engineering model he created today are completely different. It can completely rely on the ongoing MA-60 project and be promoted internally as advanced experience. This weight is much larger than a paper. You must know that this kind of engineering model that can be widely used, even in large companies such as Boeing, Lockheed Martin, and Rolls-Royce, is definitely a secret that will not be disclosed to the public casually. As for China Aviation Industry, which does not have such a strong financial background, it has to maintain these few unique skills. ?Hearing Chang Haonan''s decisive answer, Yao Mengna looked at him with a hint of understanding in her eyes. Fang Zhen next to him lowered his head, showing a thoughtful expression. As for Du Yishan, he just patted Chang Haonan on the shoulder and nodded slightly. ?Of course he could see that his student was not hypocritical when he spoke, and this was not the first time that the other party had made a similar statement. In 1993, Jinling University was the first to put forward the mandatory requirement to publish SCI papers for doctoral graduates, and other schools quickly followed suit. By 1996, a trend of thesis-based theory had gradually begun to form. Of course, from the perspective of ensuring the quality of graduate training, this cannot be said to be a bad thing. However, it is inevitable that engineering disciplines such as aircraft design, which are not so easy to produce papers, will be affected. In this context, it is even more rare for Chang Haonan to have such an awareness. After being satisfied, Du Yishan suddenly had a bold idea Perhaps we can allow such capable and determined students to participate in some projects in advance. It can also be regarded as injecting some rare fresh blood into the Chinese aviation industry. ?But before that, we still have to let the 603 Institute verify the correctness of Chang Haonans model. Otherwise it may not be convincing enough. ?Thinking of this, he took out a bunch of keys from his pocket and handed them to Xia Tian next to him: Xiaoxia, go to my office and get some floppy disks and copy the project files from the computer into them. Ill use them tomorrow. ?There is no small matter in the project. Even if he is already an academician, he still has to provide enough real evidence to reassure the 603 institute. ?Xia Tian moved quickly, and within a few minutes he came back with a floppy disk box, then sat in front of the computer and started copying data. ??Although the capacity of a floppy disk is only 1.44 or 2.88MB, its read and write speed is lower, usually more than ten to twenty KB/s, and it is also unstable. So it even takes a few minutes to fill up a disk. Taking advantage of this moment, Du Yishan walked to the side and looked at the calendar hanging on the wall: After I come back from Haojing, we will have a team meeting in the afternoon the day after tomorrow. Lets make some preparations in the past two days. Then he turned to Chang Haonan and said alone: "Also, Xiao Chang, computer-aided design and simulation should be the future development direction of our field. In these aspects, my age is not as good at accepting new things as you young people, so I want you to give everyone a system Talk about this knowledge." As soon as Du Yishan finished speaking, before Chang Haonan could react, Yao Mengna took over the words: "Teacher Du is right. I have always had this idea before. Junior Brother Chang has a very high level in computer simulation. Sometimes a few words of guidance can open up people''s minds. If he talks to us just once, everyone''s progress will definitely be improved." It will be bigger. ?Although after this days work, everyone in the laboratory already knows Chang Haonan, very powerful. But only Yao Mengna has actually consulted Chang Haonan and knows how powerful he is. Being able to know something yourself and being able to tell it are two different things. Being able to speak it out and being able to explain it clearly in a simple and profound way are two different things. In order to reach the third level, the level must not only be superb, but at least be able to master it. The two times Chang Haonan told her, although his attitude and tone always made her grit her teeth with anger, the effect was indeed very good. ?In addition, Yao Mengna also wanted other people in the research team to experience the feeling of being crushed by their IQ when receiving guidance from Chang Haonan. Share the blessings together and bear the hardships together. "Hmm... no problem." Chang Haonan rubbed his nose and replied: "The effect may not be very good if you just explain it. I can find a calculation example to demonstrate it on the spot." Teaching more people what he already knows or what he has taught systematically and exerting collective strength has been his strategy since his rebirth. Now that it was Du Yishan who took the initiative, it was naturally impossible for him to refuse. In this case Du Yishan lowered his head and thought for a moment, and quickly thought of a feasible solution: Its not good for so many people to be together in the computer room. Ill go find a laptop and everyone else will report normally first. Then take a break and then you can give a demonstration to everyone. At the same time that the content of the group meeting was finalized, Xia Tian finally completed the copying of the materials. ?So Du Yishan put away the floppy disk box and prepared to leave the office. But at this moment, Fang Zhen suddenly called him from behind: Teacher Du, we were going out to have a meal tonight to welcome the junior brothers who have just joined the group. Now it seems that the welcome banquet will turn into a celebration banquet. Do you want to come with us? Chang Haonan next to him was also stunned. No one had told him about this incident before. It should be a surprise prepared for him. Its just that today he brought a bigger surprise to everyone in the research team. "Forget it, I won''t join in the fun. Without me, an old man, you young people can''t even have fun..." ?Du Yishan didnt even look back. Halfway through his words, he suddenly realized something: Oh, do you mean you want me to reimburse you? ?Fang Zhen and Yao Mengna nodded together. Then keep the invoice until the group meeting is over. If everyone makes good progress this semester, I will reimburse you in full. In these aspects, Du Yishan is basically not stingy. Even when he was young a few years ago, he would organize autumn outings for the research team every year. "oh-" Thank you, Teacher Du! Long live Teacher Du! Goodbye, Teacher Du, we wont send you off! ?While everyone was making noises, Chang Haonan checked the changes in the system. For him, there is nothing new in today''s output, so the two ability values ??of theory and management have not changed, only the engineering experience has increased by 10 points. But for this era, he has created a completely new and quite influential engineering model today. So even though it has not yet been verified and implemented, the scientific research points have been directly increased by 20 points. So the current situation of the system becomes: Research Points: 26 Theoretical level: LV2 (0/10000) Engineering experience: LV1 (70/1000) Management ability: LV0 (5/100) Comprehensive ability: LV1 Projects in progress: 0 Projects that can be carried out: 1 (End of this chapter) Chapter 34 Key decisions [seeking reading] Chapter 34 Key Decision [Seeking further reading] Early the next morning, Du Yishan took the first flight of the day to Haojing, and then met Director Zhou Yonghang and Chief Engineer Yi Yuanhe at Institute 603. The former had already called two people last night and asked them to set aside a whole morning. After meeting, Du Yishan directly took out a floppy disk containing explanatory materials that he had compiled overnight. ? ? We are all engaged in technology, so there is no need to waste any words. Zhou Yonghang and Yi Yuanhe quickly realized the value of the contents of the floppy disk. Scientific research is nothing more than discovering and solving problems. But when you really want to do something, it is often complicated, and it is quite difficult to find a place to start from the chaos. ? Zhou Yonghang and Yi Yuanhe are both experienced and experienced engineers, but after reading this idea of ????solving the problem, they still feel a sense of unreality. Generally speaking, the development of engineering models is relatively gradual. New methods that have just been born are always immature. When solving practical problems, they often need to be supplemented by old methods or experience. The set of things displayed on the screen in front of them were started from multiple directions at the same time, and finally converged on the key issue of wing flutter analysis. In this process, a series of secondary engineering problems including incremental finite element analysis, aero-servo-elastic modeling and model predictive control were simultaneously solved. It is as if this method has always existed, and has even developed and become mature after ten or twenty years, but they have never heard of it before. Its a bit like the feeling when I first came into contact with calculus. It has to be Academician Du. Zhou Yonghang leaned back on the large backrest of the seat and said in an admiring tone: If I hadnt known that this was a new method created by you, I might have thought Before he finished speaking, he was interrupted by Du Yishan: "I didn''t create this. At Du''s age, if he wants to come up with something new in terms of methodology, I''m afraid he won''t be able to do it." Thats Yi Yuanhe next to him looked curious. He is one of my students. The waves behind the Yangtze River push the waves ahead. ?Du Yishan hesitated for a moment, but ultimately did not reveal Chang Haonans identity as an undergraduate. He was afraid of scaring two old colleagues. It is not too late to wait until this method is verified. Lao Du, if this engineering model is verified, Im afraid ?Zhou Yonghang looked at the computer screen in front of him and hesitated for a moment, but finally continued: Im afraid it can be regarded as the most outstanding achievement of China Aviation Industry in the field of aircraft design methods. Coming from the mouth of the director of Institute 603, these words can naturally be regarded as extremely high praise. Thats why I came to you. ?Du Yishan didnt make any meanderings, put the tea cup in his hand on the table in front of him, and got straight to the point: Do you dare to verify this engineering model on the Yun 7-200A project? The two people sitting across from each other looked at each other. ?This question is difficult to answer. They did not find any problems in terms of derivation method and simulation calculation process. However, the two men and Du Yishan had different starting points for thinking about the problem. Especially Yi Yuanhe. This is determined by the different positions of several people. Since the 941 (Manned Spaceflight) Project, Chinas engineering projects have gradually established a main tone: The chief engineer makes the decision and the chief engineer is responsible. Any matters related to Yun 7-200A will be made by Chief Engineer Yi Yuanhe. Correspondingly, if something goes wrong after this engineering model created by Chang Haonan and recommended by Du Yishan is applied to aircraft design, it is not them who need to bear direct responsibility, but Yi Yuanhe.?????That is, the unity of rights and responsibilities. ??If you put Du Yishan in that position, he must have the same idea. ?Yi Yuanhe lit a cigarette, put the filter tip into his mouth and took a long puff. ??If this model only involves nonlinear flutter analysis, there is actually nothing to worry about. First blow a wind tunnel to verify the accuracy of the model, and then conduct a test flight if it passes the test. The risk will always be smaller. But this flutter is actively suppressed... It has only been more than ten years since the concept was first proposed in the West. It hasnt even really been used in aircraft design yet. ??Since it involves the action of the aerodynamic control surface, it is difficult to verify it through a blow tunnel. Because the scaled-down wind tunnel model simply does not have an aerodynamic steering surface, even if it is made, it cannot be controlled according to the control rate written by Chang Haonan. As for the full-size model The Y-7 aircraft has a wingspan of 29 meters, and after replacing the new wings, it is nearly 35 meters. It is really impossible to find a wind tunnel of this size. So it has to be tested directly after theoretical verification. This risk is huge. You must know that there is only one verification aircraft currently undergoing airworthiness testing. ?In addition to being responsible for the verification of this project, this single aircraft is actually a verification of CCAR25, Chinas new airworthiness regulations that are in line with international standards. ??If something goes wrong, it will be a small matter for him to be infamy for thousands of years, but it will be a big deal for him to delay the development of the entire Chinese civil aviation and aviation industry. Yi Yuanhe lit a second cigarette. Du Yishan, who also served as chief engineer, knew how much pressure there was in this situation, so he just stared at the flickering cigarette butts through the swirling smoke, and did not rush to speak to urge him. ??More importantly, as he said in the lab yesterday. Since the 603 Institute has reluctantly launched this project, it shows that there are expectations and pursuits for this new passenger aircraft. ??It would be fine if the results given by Du Yishan are as unfeasible as those of Hogent. But now this opportunity is right in front of them, and they cannot turn a blind eye. The silence between the three people lasted for almost half an hour. Until Yi Yuanhe finished smoking his sixth cigarette, which was also the last cigarette in the pack. "From my personal point of view, of course I hope to use more advanced designs, otherwise it will be difficult for new aircraft to open up the market. If we just buy a few of them to follow the lead of domestic airlines, it is not the result we want. " ?Perhaps because he smoked too much in a short period of time, Yi Yuanhes voice was a little hoarse: But we still have to be scientific and not act recklessly. After finishing speaking, Yi Yuanhe put out the cigarette **** in the ashtray, stood up and walked to the window, looking at the track outside: We will proceed in two steps. First, we will improve the current No. 01 demonstration aircraft to verify the effect of active flutter suppression. After passing the test, we will replace it with a new wing and conduct a full-state test flight. As the chief engineer, it is impossible for him to make drastic improvements to an aircraft that is already in a test flight state just by patting his head without verification. Being able to make this decision was already under a lot of pressure and risk. After all, there is often only a thin layer of window paper between being bold and promising and being blind and reckless. Who can be sure that the score will be exactly right? (End of this chapter) Chapter 35 Guaranteed postgraduate quota [seeking further study] Chapter 35: Guaranteed postgraduate quota [seeking further reading] ?Two flowers bloom, one on each side. ?At Beijing Hang University, Chang Haonan did not go to the office that day. On the one hand, after he solved the biggest problem of the entire research group yesterday, everyone was very happy to eat, drink and play in the evening. In addition, with the large number of people, they were not too worried about safety issues, so they stayed until midnight, and there were two He drank too much and became a bit drunk. ?So Fang Zhen simply announced that he would have a day off the next day. On the other hand, Class 93 of the Aircraft Department is organizing a once-a-semester final grade meeting this afternoon. According to the school''s official plan, it is still within the examination week and has not yet come to vacation. But because the Department of Aircraft Science has fewer classes and fewer exams this semester, the results of even the junior year students have been released, but they havent had time to print out their transcripts yet. And this is the last summer vacation before graduation. After entering the workforce, most people do not have such leisurely and happy time as two long vacations a year. In addition, for schools in the north, the summer vacation is inherently short, usually only about a month. Therefore, junior students generally want to leave school as soon as their transcripts are issued. Whether you go home or contact your workplace, your mind is no longer on campus. So the school has been relatively open-minded and acquiesced to each department''s scheduled vacation time being moved forward. Two o''clock in the afternoon. In a large classroom in the No. 1 teaching building, students participating in the grade assembly came in one after another and signed in at the door of the counselor in charge of their class. ?Chang Haonan came a little late this time. When he entered the classroom, the seats in the back rows were already full. Haonan, when I was in the office before, I heard that you got full marks for aircraft design. Thats amazing. While Chang Haonan was signing in, counselor Liu Chenchen whispered to him. ?Although the university has class teachers, they are all part-time professors of the school, and their presence is basically zero. Chang Haonan only vaguely remembered that at the beginning of his freshman year, the class teacher took the whole class out for a hot pot buffet, and then he never showed up again. Hence, all work related to class management will basically fall on the heads of counselors. But in this case, a well-established counselor like Yan Lu would definitely be too busy, and the school would not be able to hire temporary workers to supervise students. Hence the term administrative postgraduate research. That is, after graduating from a bachelor''s degree, you first stay in school as a counselor for two years, and then study for a master''s degree for three years. Of course, although this way of postgraduate guarantee has slightly lower academic performance requirements, it also has high requirements in other aspects such as student work and social practice. In short, it is not easy. Liu Chenchen, who is in charge of classes 9301 and 9302 in the Aircraft Department, is such a 2+3 counselor. Since she is actually a student herself, she has a good relationship with the classmates she is responsible for. Is that so? It seems that I am lucky this semester. After obtaining Du Yishan''s guarantee, the results are actually not very important to Chang Haonan. ??But such a flattering answer turns out to be a very high-end pretense in the eyes of others. "Perfect scores cannot be explained by good luck." Liu Chenchen sighed, his petite body lying on the table: "I really envy you academic masters. If my grades could be better, I wouldn''t have to waste these two days. years. Liu Chenchen is similar in stature to Zhang Man, both only over 1.5 meters tall. But unlike the latter who is good at talking, Liu Chenchen can show a strong aura when needed. It''s probably like having a 1.5 meter loli figure with a 1.7 meter face. "Actually, it''s not bad." Chang Haonan was also a little unsure whether to comfort him at this time or not: "Sister Chenchen, if you are professional, having such two years of experience may be better than directly studying for graduate school." ?This kind of 2+3 counselor positions are randomly assigned and will not necessarily be sent back to the college. ?For example, Liu Chenchens undergraduate and masters majors were both in industrial foreign trade and belonged to the School of Management. However, in the 1990 version of the professional catalog implemented at this time, management was not yet an independent subject category, so students at Beijing Hang School of Management were all awarded engineering degrees. Alas...how is it possible? We are studying industrial trade, but the employer doesnt care about this. While the two were chatting, several other students who arrived later also completed signing in, including Zhou Shuwan and Zhang Man. Just when Chang Haonan and others were about to find a seat as far away from the front as possible, Liu Chenchen folded the filled sign-in form and put it in his bag and stood up: Lets go, Sister Lu just asked me to take you guys to the front and sit down. About ten minutes later, Yan Lu, who was in charge of the entire aviation department student affairs, led another woman in her fifties to the podium. The grade assembly has officially begun. "Students, this should be the last time I hold a grade assembly for you Class of 93. Considering that many students will start looking for jobs next semester, today I have specially brought some information about corporate recruitment, as well as information about our majors. Relevant industry trends Yan Lus professional ability is really not to be said. After she temporarily added such a content to the grade assembly that was originally just a formality, almost all the students immediately cheered up and became serious. ?Although there is no systematic talk about autumn recruitment and spring recruitment at this time, some large companies, especially foreign companies, will indeed start recruiting graduates for the next year from September to November. Hence this part is also the top priority today. ?Yan Lu kept talking for almost an hour and a half, and her voice was already hoarse before she finally stopped. Teacher Zhou Hong will talk about some issues about learning. After saying this, Yan Lu finally breathed a sigh of relief and gave up the podium to another teacher who had just followed her. Chang Haonan then remembered that Zhou Hong seemed to be the teacher in charge of the teaching department of their college. Students, I think you are all tired, so I will keep the story short. ?Zhou Hong spread out the pieces of paper in front of her and said: This semester, there is only one professional course, and there are very few students who are failing. In addition, there is a student who got full marks in this aircraft design course One sentence made almost everyone look at Chang Haonan who was sitting in front of him. ?Of course, everyone here has seen Chang Haonans course presentation, and actually had psychological expectations for this matter, so they were not particularly surprised. However, some students started to discuss quietly. Well, in retrospect, the seaplane designed by the previous group was also pretty good... Yes, it would have been a perfect score in previous years I can only say that there is no harm if there is no comparison. I am indeed a little unlucky... To be honest, these students should feel sorry for Huang Zhiqiang. But to the latter, who was already mentally shattered, this sentence turned into a mockery of him. So much so that he didnt even hear a lot of what Zhou Hong said later. Finally, according to the practice of our college, the students who rank in the top five in their majors with average grades will be able to enter the postgraduate interview stage without examination, and 3 of them will eventually be recruited. One sentence made the audience instantly quiet. Although the matter of admission to graduate school has nothing to do with most people, everyone will be curious about who entered the final interview round. ??Huang Zhiqiang, who was still gritting his teeth just now, now had a smile on his face again. From his point of view, although Chang Haonan stole some of the limelight in his course on aircraft design, the difference in performance should not be huge. With the advantages he had accumulated before, he should still be able to rank first in the major. "So this year the five people from our aircraft department who have entered the postgraduate interview stage are: Chang Haonan, Zhou Shuwan, Li Yiqing, Tao Ran, and Zhang Man. Please stay with the five after the class meeting. There are a few forms that you need to fill out. " Applause broke out in the large classroom as usual. ?Only Huang Zhiqiang''s body swayed slightly and stayed in place, as if there was silence in his ears. (End of this chapter) Chapter 36 Trapped in a cocoon Chapter 36: Trapped in a cocoon In fact, only a few people will really pay attention to the performance rankings of this major. For most people, it is enough to know who is a good student and who is a bad student. If there is a question that they cannot understand or a lab report that they cannot write, it is enough to know who to borrow the answer from. ?Hence, not many people thought it was particularly strange that Huang Zhiqiang was not included in the list of those exempted from the exam. After Zhou Hong read out the list of five people, he was ready to disband and go back to the dormitory. Liu Ran glanced at the livid Huang Zhiqiang from a distance. After a moment of hesitation, he followed several other roommates and left the classroom. The other two people in the same group as Huang Zhiqiang quickly came over. Brother Qiang, is there something wrong with this list? Hearing these words, Huang Zhiqiang finally recovered from the previous state. At this time, he clenched his fists and his whole body was trembling. No, I must ask about this matter! Looking at the five people sitting at the front who were filling out the postgraduate application form under the guidance of Zhou Hong, Huang Zhiqiang almost burst into flames and quickly stood up and came to the side of the podium. Teacher Zhou, can I see the transcript? ? Huang Zhiqiang suppressed his anger and asked Zhou Hong in front of him. TranscriptWhich class are you in? Aircraft Department 9302. Zhou Hong does have a transcript of all majors divided by class. It is said that the grades of each course are students'' privacy and cannot be shown to others casually. However, in this era, these things are not taken seriously, so after hesitation, he still found it. The transcript of class 9302 was handed over. ?The anxious Huang Zhiqiang almost grabbed it. Fortunately, Zhou Hong''s attention was all focused on the five people filling out the form, and he didn''t care about Huang Zhiqiang''s reaction at all. Fifty...fifty-nine points? The moment Huang Zhiqiang saw his results, his mind went blank. ? He ??had thought before that he might not get a full score, but the worst-case scenario was around 95 points. As for 59 points Its impossible to even think about it. Since entering college, Huang Zhiqiang has been able to get scores of around 85 in even the ideological and political courses he hates most, and all professional courses start with at least 90 points. Obviously, the reason why he did not enter the postgraduate interview was obvious. Excluding physical education and general education courses that are not included in the grade, the total credits earned in the first three years of the aviation department were only in his early 70s. A course worth 10 credits only scored 59 points, which directly lowered his average grade by 5 points. So many points. You must know that the gap between the dozen or so people at the top is not very big. Even though he was ranked first in the professional rankings before, he was directly dragged out of the top five. ?Thinking of this, Huang Zhiqiang quickly checked the results of the four members of Chang Haonan''s group. Sure enough. ??In addition to Chang Haonan himself who scored 100 points, Zhang Man and Zhou Shuwan scored 95 points and 90 points respectively, and Wu Yifan also scored 85 points. ?Such a high score made Zhang Man, who was originally outside the top ten, directly become the fifth in the major, and Chang Haonan, who was already doing well, directly counterattacked and became the new first in the major. Looking at the Arabic numerals on the transcript, Huang Zhiqiang''s eyes almost burst open, and his eyes were filled with blood. int ? Huang Zhiqiang, who was extremely angry, laughed dryly, and then raised his head, ready to see how the "culprit" Chang Haonan would react now. Scorn? Sneer? Hypocritical concern? The moment before he looked up, Huang Zhiqiang thought of many possibilities. However...??Chang Haonan still had such a calm expression, leisurely filling in the last form in front of him. During the whole process, she didnt even raise her head to look at him. ??The biggest ridicule in the world is that you regard others as your biggest opponents, thinking that the other party has all their tricks and you are one step behind. As a result, they actually don''t even bother to look at you. ?? Huang Zhiqiang looked at the scene in front of him and suddenly felt his eyes go dark. Fortunately, he was standing next to the table, so he almost relied on instinct to find a place to sit down without falling directly to the ground. Actually, Chang Haonan cannot be blamed for this. Since returning from rebirth, he has never regarded Huang Zhiqiang or anyone in the same grade as his opponent. ?His goal from the beginning was to find ways to get in touch with actual projects as soon as possible. Not to mention the help of the system, even if there was no help from the system, the knowledge and more than 20 years of memory brought back by Chang Haonan were enough to attract Liu Hongbo''s attention in this aircraft design course. Its just that the effect is not as exaggerated as it is now. In fact, Chang Haonan was noticed by Du Yishan thanks to Huang Zhiqiang''s wave of reports. In other words, in the past month, Huang Zhiqiang has been tossing and turning, but he is actually fighting against the air. ?Chang Haonan didn''t take the move at all. ??Even now he doesn''t know that Huang Zhiqiang made so many little moves against him later. Because its really... not affected at all. So the situation can be summed up as follows... You fell down before I could exert any force.jpg Please, you are weak.png Of course, if Huang Zhiqiang knew this, he would be so angry that he would vomit blood. After all, this feeling is similar to that on the wedding night, when the husband is exhausted from all the hard work, but the wife thinks it hasnt even started yet... In short, it is a great shame and humiliation. ?But at this time, Huang Zhiqiang, who had just recovered from the black eyes, could not think about this. There was only one thing in his mind. Lets go find Liu Hongbo and discuss it! However, when he rushed all the way to Liu Hongbo''s office and asked him almost in a questioning tone why he only scored 59 points for his course design, the latter did not answer. He just put down the pencil in his hand and used a Looking at him with a strange look. How could Huang Zhiqiang have the time to think about the meaning of this look in his heart? Besides, he had already preconceived the idea that Liu Hongbo could not understand his design at all, so how could he think elsewhere at this time. ?So this silence was naturally interpreted by him as a guilty conscience. "Teacher Liu, I need an explanation. The performance of our group in that demonstration class was seen by all the students in the 93rd grade aircraft department. How about we go to the classmates to comment and see if our design should only be 59 points! ? Huang Zhiqiang, who thought he had the upper hand, said even more aggressively. Seeing the other party behave like this, Liu Hongbo sighed deeply in his heart, and at the same time he was a little lucky. ??If Du Yishan hadn''t seen the clues about the course design that day, he would most likely have recruited such a psychologically distorted student into the research group. ? Even if this person does have certain abilities, there will be endless troubles. I dont care if I go to my classmates to comment. Liu Hongbo stood up, walked to the cabinet next to him, dug out Huang Zhiqiang''s course plan, put it on his desk, and then pulled out a book with a green cover from the bookshelf next to him. But you have to think about it, if this matter comes out, it may not be as simple as just 59 points in a course. After saying this, he opened the book and flipped it to the end, putting it together with the course design instructions he had just found. The moment he read the contents of the book, Huang Zhiqiangs face instantly changed from red to pale. (End of this chapter) Chapter 37 J-7E Chief Designer’s Shock [Seeking further reading] Chapter 37 J-7E Chief Designers Shock [Seeking further reading] Later that day, inside the 611 Research Institute in Chengdu. 59-year-old aircraft designer Lu Yuying had just returned to his office after dinner. As the chief designer of the J-7E aircraft, he can now be considered successful. ?This deeply improved version of the J-7 has been well received by the troops and may soon be exported to other countries in exchange for valuable foreign exchange. Lu Yuying himself is quite satisfied with this model. But satisfaction does not mean satisfaction. With the completion of the finalization of the J-7E, he has already begun to think about how to improve the J-7 in the next step. As a member of Institute 611, he certainly knows that Project No. 10 is currently progressing smoothly. But whether it is from the perspective of project risk prevention or simply from the perspective of export, the J-7 still has the potential to continue to improve. ?However, Lu Yuying encountered difficulties when it came to improving his ideas. There is no doubt that it is already the second half of the 1990s, and there is no way out for continuing to develop day fighters. ??However, the all-weather model J-7C/D that was developed simultaneously with the J-7E was not successful, and the evaluation of the troops was even worse than the former. ??So relying on enlarging the body and sacrificing maneuverability in exchange for extremely limited over-the-horizon detection capabilities... No way! ?Hence, Lu Yuying quickly began to consider new design ideas. The space in the nose is freed up to install the radar, and the air intake is placed elsewhere. ??But after trying several solutions, either the performance failed to meet the standard, or the changes were too large, and in short, none of them satisfied him. ??In recent months, Lu Yuying has been studying a way to intake air into the lower jaw, but the design of this seemingly simple structure is not small. The radome on the nose part will interfere with the oncoming flow and affect the normal operation of the air intake. ?Most design drafts dont even make it to completion. The only relatively successful one, after blowing through several wind tunnels, it was found that the intake distortion at certain speeds and angles of attack can even exceed 0.3, which will undoubtedly make the WP13F engine''s already less than adequate performance To add insult to injury. Now I come back to work overtime after dinner, just for this matter. Just when Lu Yuying took out the key and was about to open the door, he noticed an envelope stuffed in the mailbox on the wall at the door. ?Taking it out, I saw several large characters printed on the kraft paper: The editorial team of "Journal of Aeronautics and Astronautics". As one of the reviewers of this magazine, he naturally has some review tasks to complete every year. ?Lu Yuying does not object to reviewing manuscripts and never procrastinates. Whenever she receives a manuscript, she will try to read it as soon as possible. He is not going to make an exception this time. Its just a pity that I wont be able to advance the work at hand this whole night. "well" ?Lu Yuying sighed and walked into the office with the envelope. After pouring himself a glass of water, he returned to his desk. Light the desk lamp and slowly open the envelope. Research on the integrated layout of double-module mandibular inward-turning air inlet/conical front body The moment he saw the title, he was even stunned for a momenthe thought he was looking at a report submitted by his own designers. Its a bit interesting ?Lu Yuying immediately cheered up. After all, this is exactly what I am currently studying. He subconsciously turned to the last page to confirm and found that the author was from Beijing Hang University. The first author and corresponding author are the same person, Chang Haonan An unknown name, Lu Yuying shook his head. ??He has at least heard of several relatively high-level professors at Beijing Airlines. It seems that this is most likely an ordinary or even a bit watery paper. After all, one of the organizers of Journal of Aeronautics and Astronautics is Beijing Airlines. If people from your own school submit articles, the editorial department will take care of them to some extent. However, the reviewer''s duty still made him put aside his inner contempt and continue reading seriously. What if it can bring some inspiration... ?However, when he read the summary on the first page, he realized that he had been preconceived. This design not only provides a good displacement effect of the precursor boundary layer for the internally turned inlet, but also effectively avoids the interaction between the precursor boundary layer and the internal flow field of the inlet in the traditional mandibular inlet layout. interference." ?This sentence almost directly touched Lu Yuyings heart. He has been tortured by the interference between the precursor boundary layer and the flow field inside the inlet for half a year. The author of this article claims that he has solved the problem. When M=0.8, the total pressure recovery coefficient is not less than...0.942. ??When Lu Yuying saw the last value in the summary, the right hand holding the pen trembled violently. A drop of ink was thrown on the glass of the table, but he didn''t notice it at all. Compared with his previous designs, it is more than 10% higher. ??What Lu Yuying didn''t know was that this result that he couldn''t believe was even after being specially "handled" by Chang Haonan and Du Yishan. But this number is enough for him to look forward to the following content. He turned the paper to the second page. After a ridiculously short introduction, the author started to introduce the design ideas and methods directly without any nonsense. ?Ten minutes have passed... Twenty minutes an hour ??When Lu Yuying read the last page of the paper and raised his head again, the hour and minute hands of the clock on the wall had overlapped. He actually read the paper for almost six hours without knowing it! The notebook on the right hand side is already filled with densely written content, some of which are things that I dont quite understand yet, some of which require calculation or wind tunnel verification, and some of which are simply sighs. for example: It not only ensures the capture of the high-energy mainstream, but also discharges the low-energy flow near the wall out of the inlet, wonderful! and so on. This paper is ten pages long, but the sentences are concise, concise and concise, and there is no trace of word count. Its all dry stuff. And the idea of ??finding and solving problems is very clear. ??? Rao is a 59-year-old comrade of his, and he has to sigh at the rigor! It seems that although the author is unknown, he seems to have some engineering experience. ?Lu Yuying thought so. When the paper is officially published in a journal, the author''s photo and introduction will be attached at the end. However, this is the job of the editorial department, and the reviewers cannot see it during review. So Lu Yuying didnt know who this Chang Haonan was. I can only make a rough guess, maybe it is a young talent that Jinghang recently poached from a foreign university. These days, a lot of Chinese people are traveling abroad, and few choose to come back after going out. ?So if this is the case, it is quite a rare thing. ??Moreover, after reading the entire text, Lu Yuying has realized that the content of the paper should have undergone a similar declassification process, with some data and processes hidden. ?So after going to work tomorrow, he plans to call Beijing Airlines to see if he can communicate with the author himself. Only after obtaining complete information from the other party can the next step of wind tunnel testing be started. Because paper reviewers are only responsible for examining the research process and ideas, and are not responsible for the authenticity of the data itself. But as an aircraft designer, he has to ensure that the data he obtains is complete and true. Of course, judging from the rigor of the process discussed in this paper, Lu Yuying is relatively optimistic about the results. (End of this chapter) Chapter 38 end of school year Chapter 38 The end of the school year That evening, Chang Haonan and the other three people who had passed the postgraduate interview followed the "customary" and invited their classmates with whom they had good relationships to have a meal. ??It''s still BJ Roast Duck, but the quality of the restaurant is much higher. Jin Jude. ??This century-old brand has not lost its reputation in this era, and it does still have real skills. The price is really outrageous. At first glance, I thought it was back to 2023. ?However, neither Zhou Shuwan nor Zhang Man are short of money. As for Chang Haonan, he only got the 800 yuan deposit a few days ago, and he is quite wealthy. In fact, it stands to reason that all dormitories are for eight people, so three people should have 21 roommates alone. ??But on Chang Haonan''s side, Wu Yifan took leave in the afternoon and did not come to the meeting, so he could not be contacted. Liu Ran said he was ill and did not come. Huang Zhiqiang has been missing since the grade meeting. As for Zhang Man, her personality is really not popular among girls. In addition, there are only a few girls in the aviation department, and there are several non-majors in her dormitory, so she doesnt even have a roommate. Only 6 people came from Zhou Shuwan''s side. The only one who didn''t come was because he bought a ticket for the evening and had disappeared. Considering that Zhang Man was the only girl in the whole situation, it was not good, so everyone gathered together and simply called Liu Chenchen, who was about to end his term as a counselor and go back to graduate school. Although Liu Chenchen has a strong aura, he usually has no airs. Now that I am about to return to my status as a student, there is no more burden, and I will soon get along with the others. Since the reason for the treat was Baoyan, the topic quickly and naturally turned into a discussion about the future. I heard from Sister Lu before that Nanshen has been recruited by Academician Du Yishan. What about you two? Do you have any ideas? In just a few words, Liu Chenchen''s name for Chang Haonan had also changed. Well... I still have some self-awareness. Even though I got the interview, I will definitely not be able to get a job in the end, so Im not going to bother with this. Im going to go directly to the teacher to get a recommendation letter and go abroad at my own expense. ??Although there is an interview in the process of postgraduate entrance examination, if there are no special circumstances, it is based on the ranking of the written examination, so what Zhang Man said is not a problem. But Zhou Shuwan next to him was shocked after hearing this. Manman, you... Obviously, before hearing this sentence, this guy thought Zhang Man really had thoughts about him. Now that the results of professional courses in junior year have been settled, there is no need for the latter to continue pretending. In fact, if we really talk about it, although Zhang Manren is a little green tea and a little scheming, in fact, in the past three years, he has not done anything harmful to Zhou Shuwan, the spare tire. After all, Zhang Man is a rich young woman, and she cannot be considered a scumbag. It is nothing more than asking the latter to give lectures, borrow notes, copy experimental reports, and help with major homework in several professional courses. Perhaps the most outrageous thing was that before handing in the assignment in the aircraft design course, she called out "Brother Wan" several times to get Zhou Shuwan to agree to write her name second after Chang Haonan. Its just that Zhou Shuwan, who has devoted all his feelings to Zhang Man, is really hard to accept. What about you, Wanshen? Liang Hao next to him poured a glass of beer for Zhou Shuwan and patted the latters shoulder. In fact, almost everyone who knows Zhou Shuwan knows what Zhou Shuwan means to Zhang Man, but this kind of thing... There is no way to persuade. We are going to go to graduate school with Professor Liang Wenchang. He is an expert in aircraft life-saving systems. I am more interested in this field. He made the same choice as Chang Haonan did in the life before his rebirth. After Zhou Shuwan finished speaking, he raised his neck and drank the beer in the cup in one gulp. By the way, Sister Chenchen, arent you going to graduate school next semester? What is your research direction? Chang Haonan noticed something was wrong in the atmosphere and quietly changed the subject. "Is this a major in industrial foreign trade... You also know that in fact, many things are false, and research can''t produce anything." Liu Chenchen didn''t drink, so he took a glass of grape juice: "We 2+3 graduated from the undergraduate program I decided on a mentor at that time, and I found Teacher Yang Huimei. She is more experienced in this field, and with her I will have the opportunity to directly participate in foreign trade activities, and maybe travel abroad at public expense. " Jinghang''s industrial foreign trade major mainly refers to the equipment manufacturing industry. In today''s era, it is industrial foreign trade at best, but it is actually industrial procurement at worst - basically only buying things from foreign countries. As for the others, only one has the idea of ??preparing for the postgraduate entrance examination, but it is obviously too early to consider the issue of tutors now. Reviewing mathematics and English is the right way. In short, after a lot of discussion, this last normal semester of undergraduate studies has come to an end.??? Early the next morning, Chang Haonan came to the laboratory on time. After he overfulfilled the task of wing flutter analysis, his days became leisurely. ?Although there is still an unfinished report, this work has been handed over to the experienced Fang Zhenlai, who did not even ask Chang Haonan and Yao Mengna to help. Of course, Du Yishans research group has other projects, but most of them are closer to the kind of private work that Chang Haonan took on before, and they are not even directly related to aviation, such as performing two-phase dynamics analysis on fluidized beds. ?There is no way, these days even the research groups of academicians have to rely on these "irrelevant" projects to earn funds. As for the group meeting in the afternoon, there was actually nothing to prepare for. His plan was to talk about some basic theories first, and then directly use the MiG-21 model to conduct a live demonstration and talk while doing it. So Chang Haonan turned on the computer and prepared to continue studying the impact of swept blades in turbine machinery on the separation structure in the expansion cascade. While improving the fan before, Chang Haonan had already remembered that the influence of swept blades on gas flow performance could be applied to the design of compressor fan blades of aeroengines. ? Its just that Chang Haonan, who didnt have much contact with aerospace research in his previous life, didnt know much about its mechanism and rules, so he still had to do some preliminary exploration in this area. Otherwise, it is impossible to come up with a reasonable and closed-loop project idea, and even if you want to use the system, you will be unable to do so. However, just when he was about to start finalizing the numerical simulation plan, the phone in his office rang. The person who answered the phone was Xia Tian. Hello, hello Rongcheng 611? Yes, this is Beijing University of Aeronautics and Astronautics, but we... Xia Tian originally wanted to say that our teacher hasnt arrived at the office yet, but the other party directly stated that the person he was looking for was Chang Haonan. Junior Brother Chang, Im looking for you on the phone. It was just a person, and Xia Tian did not cover the receiver, so Lu Yuying on the other side clearly heard the name Chang Haonan. ?This made him confused for a moment. Did Beijing Airlines recruit two people from the same research group abroad at once? Before Lu Yuying could think about this issue clearly, Chang Haonan had already answered the phone: Hello, hello, Im Chang Haonan. At this point, Lu Yuying had no choice but to announce her home address and the purpose of her visit. When he expressed that he wanted to learn more about the integrated design method mentioned in the paper, Chang Haonan, who was opposite him, agreed without hesitation. ?This actually surprised Lu Yuying. After all, in his opinion, since you have dealt with it when writing the paper, you must want to hide something. So much so that he was mentally prepared for difficult negotiations or even direct rejection. In fact, Lu Yuyings idea is not wrong, but Chang Haonan is prepared to be cautious about foreigners who may read this article. If you are one of your own, it doesn''t matter. ??But no matter what, it is very inconvenient to talk about such complicated things on the phone, and inter-provincial calls in this era are not cheap at all. ?So the two directly made an appointment to meet and communicate. ?Of course, the meeting place must still be Beijing Airlines. (End of this chapter) Chapter 39 I, a junior, give lectures to the whole college! Chapter 39 I, a junior, give lectures to the whole college! That afternoon, we were in a small conference room on the top floor of the aircraft department building. A total of more than a dozen teachers and students from Academician Du Yishans research group were sitting around the oval conference table, watching Yao Mengna drawing pictures on the blackboard while talking about her research content this semester. ?No matter whether you have a masters degree or a doctorate, one thing that every graduate student cannot escape is Group meeting. Because scientific research takes a long time and there is no standardized evaluation that is conducted regularly like exams, instructors need to keep track of the progress of their graduate students through regular reporting. Of course, this also means giving some pressure, asking graduate students to come up with something every once in a while, and not to overdo it, otherwise it will be difficult to end up not being able to graduate. But in the final analysis, group meetings are still informal exchanges within the research group, and the frequency and form depend on the instructor. ?Du Yishans research group, or Du Yishan himself, doesnt really like to hold group meetings. He usually prefers to have each student report individually. In addition, the postgraduate students in the group generally have a more proactive attitude towards scientific research, so the frequency of group meetings is basically only once at the end of each semester. According to past custom, after this group meeting, graduate students who have no important projects during the summer vacation can go home for the holidays. So the atmosphere in the conference room is generally relatively relaxed and cheerful now. The above is the main work I have done this semester. I would also like to thank Dr. Fang Zhen and Junior Brother Chang Haonan who helped me during the research process As Yao Mengnas report was completed, a burst of warm applause erupted in the conference room. Generally speaking, undergraduate students and first-year master''s students who are completing their projects are not required to speak in group meetings. So normally, the group meeting would basically end here. But this time, there is a second half. Ahem Du Yishan cleared his throat: "Well, students, the first half of our group meeting is over. You can take a break for fifteen minutes. When you come back, let Chang Haonan demonstrate how to carry out efficient and accurate computer simulation and auxiliary design through practical examples. " As his words fell, everyone in the conference room stood up one after another, preparing to move their bodies, or go out to use the toilet or something. But when Xia Tian opened the door first, the scene outside was so frightening that she subconsciously took two steps back and almost fell to the ground ??There was a large group of people surrounding the door in darkness. At a rough estimate, there must be twenty or thirty people, and several of them were very old, and they could be identified as teachers at a glance. "This is" Others in the conference room also noticed something strange outside. At this time, a familiar figure of Chang Haonan quickly entered the conference room from outside. It is Liu Hongbo. Xiao Liu? Whats going on outside? ?Du Yishan was a little confused about the situation for a while. Uh...Teacher Du, thats it. Liu Hongbo raised his arm to wipe the sweat from his forehead, and then explained: "I heard from Junior Brother Fang Zhen yesterday that there will be a small lecture on computer simulation in the second half of your group meeting today, so I thought about bringing a few students over to listen together. But while I was waiting outside, I I met a few other teachers, and when they found out about it, they all went back and called a few of their students, and just like that... it spread. " At this time, another teacher from outside the door also poked his head in: Academician Du, we... But he stopped mid-sentence, because the small classroom in front of him obviously couldn''t accommodate the large group of people outside. ??But if I just go back like this, I would still be a little unwilling to do so. After all, it was Academician Du who hired him, so his level must not be bad. Forget it, Xiao Liu, please contact the dean and tell him that I want to organize a temporary meeting of several research groups from the Department of Aircraft and borrow the newly built multimedia classroom. ?Du Yishan had no intention of hiding anything, but the current scale has indeed far exceeded his initial expectations.??? About twenty minutes later, the group moved to the multimedia classroom in the next building. Mainly because there is an LCD projector here that was not very common in 1996, the kind that can be directly connected to a computer. ?The huge crowd attracted more teachers along the way. Among them was even Tang Lintian, the dean of the School of Aeronautical Science and Engineering. After personally delivering the key, he did not go back directly, but followed him to find a seat to sit down. ???In short, when Chang Haonan sat on the podium with his laptop in his arms, the classroom in front of him, which could accommodate almost 200 people, was already more than half full. When Du Yishan agreed to give a demonstration the afternoon before yesterday, his mentality was still "it''s just a group meeting, what kind of scene have I not seen?". But now I have never seen this scene before. Although he had led many interns before his rebirth, he had never given lectures on such a large occasion. There were quite a few professors in the college. So to say that I am not nervous at all would be a lie. But Chang Haonan also knew that he would have to face this kind of situation sooner or later in the future. And the level will be higher. So theres nothing wrong with exercising in advance. ?Thinking of this, he felt a lot calmer. ?Du Yishan, who was standing next to the podium, noticed Chang Haonan''s nervousness at the beginning. But just as he was about to go up and say a few words of comfort, he found that the latter had already adjusted himself, so he just sighed secretly in his heart, and then picked up the microphone next to him. Everyone who is here to listen, please find your seat as soon as possible. The second half of todays group meeting will begin soon. The academician spoke, and the effect was immediate. The whispers below quickly disappeared. But most people still looked at Chang Haonan with curiosity or suspicion. Although most people had guessed before coming that it was unlikely to be Du Yishan himself giving lectures, the general estimate was that he invited experts from outside. And Chang Haonans face Its really too young. Looks even younger than most of the graduate students here. Good afternoon, teachers, and fellow seniors. According to Teacher Dus arrangement, I will briefly share with you some knowledge of computational fluid dynamics and its application in solving engineering problems. ?This first sentence clearly confirms his student status, and since everyone is called senior brother and senior sister, they must not be senior graduate students. Tang Lintian, who had just opened his notebook, frowned slightly for a moment, and then showed a dumb smile. ?Du Yishan would definitely not joke casually, so he judged that there were some deviations in the process of word-of-mouth transmission of the news. It was supposed to be just a study progress report, but it was misrepresented as a lecture ?Thinking of this, Tang Lintian closed the notebook in front of him again. ?Of course, the academicians face still had to be given, so he didnt leave midway and was still prepared to listen carefully. Before talking about practical applications, I have to talk about some basic theories... ?Contrary to what most people expected, Chang Haonan did not directly start demonstrating the modeling and calculation process on the computer, but picked up a piece of chalk and walked to the blackboard. (End of this chapter) Chapter 40 Listen well! Chapter 40 Listen well! Chang Haonans presentation at this group meeting was originally mainly for graduate students in his own research group. Even in Du Yishans research team, not all of them are people like Yao Mengna or Fang Zhen. Most people have a relatively poor foundation in this area. ??If we start talking about the simulation calculation process directly, for these people, it is basically equivalent to just looking at the facts. People often dont understand things that they dont understand at all. At best, you can just sigh afterwards and say how awesome it is, and you wont really learn anything. Thats why he planned to start with the theoretical part at the beginning. But just now when he saw that there were many teachers sitting in the audience, Chang Haonan did feel shaken for a moment. ?????????????????????????????????????????????????????????????????????????????????????????????? Would you like to show off your skills in simulation first? But the sentence Du Yishan just said mentioned two very crucial words: Audit. No matter how many people are sitting below, except for members of the same group, they are all listening. ?This made him finally decide to continue with the original plan. "We know that the force of a fluid acting on an object can be recorded as a function of 7 independent variables, F=f (l, , , U, , , c), where l represents a certain representation of the object Length, as the characteristic length studied, represents..." After dimensional analysis, the force F on geometrically similar objects of the same type can be recorded as..." Lets discuss the dimensionless parameters appearing in the above formula in turn At the beginning, Chang Haonan was indeed a little nervous. But as the explanation continued, he quickly entered the state, and the chalk in his hand quickly wrote one calculation after another on the blackboard. Even people with relatively weak theoretical foundation can form a complete cognitive system for computational fluid dynamics simulation as long as they follow his ideas. This is the power of knowledge given by the system. In the last life, Chang Haonan was certainly very familiar with the application of computational fluid dynamics. But when it comes to these theories, they can only be regarded as understanding at best. After being reborn and receiving system buffs, this theoretical knowledge seemed to be engraved in his mind. Chang Haonan actually once felt that this basic theory was of little use, and it would not delay its application anyway. But when the projects he was going to do later became more and more complex, he realized that this view was so wrong! ?If you dont master the basic principles, you will always be following in the footsteps of others. In fact, this cannot be said to be Chang Haonans problem alone. The period from the late 1980s to the early 1990s was when the aviation industry was most impacted by new knowledge. A large number of previously untouched theories and technologies poured into the country in a very short period of time, and they came from both the Soviet Union/Russia and the West. Most of the time, the professors giving lectures on stage and the students listening in the audience are still in the learning process. Therefore, the college students of his generation, except for some who are truly gifted and talented, have learned a bit... extensive but not sophisticated. That''s why Chang Haonan chose such a more transparent way of speaking. On the other side, Tang Lintian, who was listening below, had realized that there was something wrong with his judgment just now. ??Although I havent talked about the specific application part yet, such solid theoretical ability is definitely not something that a novice who needs to report learning progress in a group meeting can possess. At this time, what Chang Haonan talked about finally entered the numerical simulation part. "The direct numerical simulation method is to directly solve and calculate the N-S equation numerically. This method does not require approximate processing of turbulent flow, so its calculation results are more accurate. However, in most cases, this solution method is too computationally intensive. Huge, completely unrealistic given current computer capabilities. For indirect numerical simulation methods, there are two main branches, namely the Reynolds average method and the large eddy simulation method "The turbulent kinetic energy and dissipation rate equations of the RNGk- model of the Reynolds average method are very similar to the standard k- model. By integrating the previous equation 47, the impact of the effective Reynolds number (vortex scale) on turbulent transport can be accurately determined , which aids in the simulation of low Reynolds number and near-wall flow problems..." ?Unconsciously, Chang Haonan had filled the four huge blackboards in front of him with writing. Tang Lintian is deeply immersed in simulation. He also knows all the things Chang Haonan talks about, so he can devote some energy to paying attention to the status of other people around him. Comparing to the basic physics content just now, even some teachers do not understand the theoretical part about simulation thoroughly in this part, so many people have already opened their notebooks and started taking notes. As for the graduate students who were brought here, let alone them. ??They are all continuing their studies after graduating from a bachelor''s degree. How could they not realize that the computer age has arrived? However, after all, there are only a few people who can rely entirely on self-taught. ?Most people just hang around in front of the gate of this field without being able to enter, or they reluctantly get in but don''t get the point. In this case, a systematic theoretical explanation almost from scratch is nothing less than a guiding light for these people. ?At this time, almost an hour and a half had passed since Chang Haonan started his lecture, but most people in the classroom still maintained their rapt attention. For Tang Lintian, this was even more surprising than the content of the story itself. As a professor who often teaches students, he knows very well where the limits of the classroom are. A class lasts 45 minutes, and most people can only concentrate for 30-35 minutes. After that, even good students will be more or less distracted. But in the current classroom, 90 minutes have passed, and this has not happened at all. ?Tang Lintian also opened his notebook. ?However, what he recorded was not the knowledge points taught by Chang Haonan, but a recollection of the latter''s teaching methods from the beginning to the present. ?About ten minutes later, looking at the contents of the notebook, he shook his head with some self-deprecation. ?Just now I just listened to the lecture and I didnt feel anything. Now after I listed out the other persons ideas, I realized that being able to explain complex knowledge in a simple and profound way depends entirely on the other persons profound theoretical skills. ?Even if he wanted to turn these things into lesson plans, it would take a lot of effort. ?However, Chang Haonan has been standing in front of the podium to explain without writing! ?Thinking of this, Tang Lintian suddenly became curious. How can a beginner make progress after listening to the entire explanation just now? Coincidentally, sitting next to him was a boy who looked like a student and was wearing a shirt. At this time, the latter had already taken notes on about the fifth page. ?So while Chang Haonan was erasing the blackboard, Tang Lintian stretched out his pen and lightly touched the other person''s arm, preparing to ask him how he felt after hearing this. Unexpectedly, the boy didn''t even raise his head, he just shook his arm and said in a very impatient tone: Dont move, listen carefully! (End of this chapter) Chapter 41 How about trying the honey trap? Chapter 41 How about trying a honey trap? Tang Lintian, who was almost elbowed in the face by the boy sitting next to him, showed a somewhat embarrassed smile. He is a good-natured person, he is not angry at all, he just feels a little embarrassed. Fortunately, after looking around, I found that everyone was either taking notes or looking at the blackboard, and no one else noticed what just happened. ? Tang Lintian breathed a sigh of relief and fell into thinking again ?Although his attempt to strike up a conversation was unsuccessful, his original goal was still achieved. Judging from the other party''s reaction just now, it is obvious that the gain is not small. ?This suddenly gave Tang Lintian some ideas. He planned to wait until the group meeting was over and go to Du Yishan to ask about the student''s situation. ?Perhaps ?Should you consider directly hiring someone to stay at the school after graduation? ?Being able to join Du Yishan''s research group, his scientific research ability is definitely not good, and his lecture level is still so high, it is simply a treasure. If by then we can cultivate a large number of the aviation talents that the country is most in need of... ??Tang Lintian''s thoughts have gradually begun to let himself go. But if you are a doctor, just giving a lecturer title may not be very attractive... ?Thinking of this, his excitement quickly turned to worry. In this year, there is no institutional policy for directly appointing associate professors after doctoral degrees. Let alone the dean, Principal Jinghang cannot make this decision alone. You have to work as a lecturer for at least two years before you can start applying for review. And because of limited funds, the salary of university faculty and staff is also relatively low. So overall, the appeal is actually quite limited. ?Hence, Tang Lintian has already begun to think about what other attractive conditions the college can offer. Prioritize housing allocation? Resolve the Beijing household registration? ?After thinking for a long time, Tang Lintian still couldn''t figure out a safe way. For a doctor with such a strong ability, if he goes to a foreign company, it may not be a problem to earn more than 100,000 or even 20,000 to 300,000 a year. In the two years that I wasted working as a lecturer, I had almost earned a house and a household registration in the capital. Why dont you try a honey trap? ?Tang Lintian rubbed his chin, his thoughts becoming increasingly inconsistent. Just when he was already thinking about whether there was any young female teacher in the college who could tie him up, Chang Haonan finally sat back in front of the computer and officially started to demonstrate the calculation examples of computational fluid dynamics simulation. Compared to the theoretical explanation just now, everyone is more interested in this part. Naturally, this also includes Tang Lintian. ?So he had to put his thoughts aside for the time being and return his attention to the curtain in front. At the same time, he turned the notebook to a new page, ready to see what the other party''s skills were in the field of practical applications. The process of computational fluid dynamics simulation can be roughly divided into the following six stages. Chang Haonan said as he opened the 3D modeling software on his computer and continued to preach while it was loading: Conduct three-dimensional modeling of the research object, establish the simulation calculation domain, mesh the calculation domain, determine the calculation model, solve the calculation and post-process the simulation results. A real simulation project would take at least a few days if it started with three-dimensional modeling, so it was naturally impossible for Chang Haonan to go through the entire process. Long before the group meeting started, he had already thought about the detailed distribution of this part of the content. "This computational simulation process is covered in many relevant guide books. Because today''s time is limited, I will focus on some details and key points in the simulation. These are some of my personal experiences. They should not be found in textbooks. of these contents. Chang Haonan said this casually, but it made some teachers below who usually just read textbooks feel a little ashamed. "After establishing the 3D model, you must remember to make necessary corrections to the model, otherwise problems may occur during the meshing process. For example, the model on the screen now is the nose part of an aircraft. We need to correct it. A small section of the radome head was solidified to make it suitable for volume meshing..." "According to my experience, the quality of the three-dimensional volume mesh must be at least 0.25 to enable more accurate simulations. Therefore, for complex models, do not directly generate the volume mesh. My personal habit is to set the line mesh first, and then Set up the surface mesh to generate a surface shell mesh, and then use the shell mesh to generate a volume mesh..." Because Chang Haonan directly used the engineering files from his previous work on the J-7 improved model, there were very few parts that required him to actually get started with the operation. However, this did not affect the excitement of the process, but instead freed up his energy to focus on the operation steps. The more difficult and error-prone areas will be explained in detail, and the demonstration will be focused on them. ?Most of these contents have nothing to do with the system, but a lot of experience that Chang Haonan himself summed up during more than 20 years of stumbling in the previous life. For the vast majority of beginners who are listening to the lecture below, it does not make much sense to repeat to them the "optimal problem-solving process" provided by the system at that time. On the contrary, the experiences and lessons of these predecessors are what they need most. ? Anyone who has done research or written code knows that the most desperate and painful time is when you clearly know there is a problem, but you dont know where the problem is. ?Hence, these "wrong question collections" shared by Chang Haonan quickly aroused a lot of resonance among the audience. Some people even realized their previous mistakes on the spot. Tang Lintian, who was taking notes, was even more frightened. Many of the simulation techniques and key points that Chang Haonan just talked about were things he had never even thought about. Some of them have never been encountered before, and some of them have been encountered before, but they didnt even know that they did something wrong before. In numerical simulation, it is very likely that errors will collide and lead to correct conclusions, but these concealed errors will not really disappear, and sooner or later they will explode in other projects. ??He simply couldn''t imagine how this young man who was clearly only in his twenties could have such rich experience. ?This further strengthened Tang Lintian''s determination to keep Chang Haonan in school. "After completing the calculation, if you want to further determine the accuracy and reliability of the calculation results, you can also conduct an independent verification of the impact of the number of grids on the accuracy of the calculation results. However, this is not a necessary part, and now Its getting late, so I want to stop here today. I hope what I just reported can bring some inspiration to you, thank you all! As Chang Haonans final words of gratitude fell, the whole classroom suddenly burst into endless applause. (End of this chapter) Chapter 42 Break the rules, go straight! Chapter 42 Breaking the rules and going straight! ?Although Chang Haonan has always said that he was sharing and reporting, the more than three hours of content just now was regarded by almost everyone as a lecture. And it is a very high level of teaching. The contempt and doubts about Chang Haonans young face at the beginning were all wiped away. ?However, the group meeting obviously will not end simply like this, because before the applause has completely ended, many people have already raised their hands to indicate that they want to ask questions. ??Taking advantage of this moment, Tang Lintian left his seat and found Du Yishan who was sitting in the first row. The latter also memorized several pages just now and is currently summarizing and organizing these contents. Academician Du, I have something to ask you. Tang Lintian whispered, and at the same time pointed to the outside of the classroom, indicating that he wanted to go outside to talk alone. ?Du Yishan looked at his watch, then at Chang Haonan who was answering questions on the podium, but got up and followed him out. Dean Tang, I just have something I want to tell you. The two of them came to the door of the classroom and stood still, but it was Du Yishan who spoke first. Please speak. It goes without saying that Du Yishans status in the academy was so important that Tang Lin Tiangang had to swallow his own problems first. What do you think of the seedling inside? It seems that Academician Du, you have the same idea as me? This sentence made Tang Lintian''s eyes light up, and he immediately rubbed his hands excitedly: "It''s true that heroes think alike." This reaction was something that Du Yishan couldn''t handle. ??Because he had already asked the college for a spot for a direct PhD program the year before, he was a little embarrassed to speak again this time, so he was prepared to be a little tactful. ?The question just now is actually just a less straightforward way to get to the topic. But what does thinking like me mean? What do you think of my students? ?Who has the same view as your hero? "etc" Du Yishan, who was a little confused, quickly raised his hand to stop Tang Lintian, who was still excited and was about to say something: "I haven''t said what I want to do yet." Tang Lintian slapped his thigh and made an expression like "I don''t know what you think?": I understand, I understand, you want to keep good talents in our school. Obviously, neither person realized that the other person was not on the same channel as themselves. Ouyou, the two of us really want to get together. ?Du Yishan didnt expect that the other party had the same idea as him, but it was good this way, it would save him a lot of talking: Thats it? As long as he can pass the postgraduate recommendation and avoid the interview, we will make an exception and let him skip the masters stage and directly study for a doctoral degree. Tang Lintian, who had heard the first half of the sentence, almost subconsciously prepared to take over everything. After all, if Academician Du made a statement, there was still a high chance that his student would stay in the school. As for what needs to be solved by him as the dean, it is nothing more than some treatment issues. But before he even started to express his position, something was wrong. ? ? "Go beyond the master''s level and study for a Ph.D.?" ? ? ? These words even made Tang Lintian''s brain freeze for a brief period of time. After spending a few seconds thinking about the meaning of this sentence, he finally realized that he might have misunderstood it just now. ?But the focus is no longer on this. He is an undergraduate? ?The administrative affairs of the college are mainly managed by the secretary. As the dean, Tang Lintian may not even know how many students there are in the college. It is too normal for him not to recognize Chang Haonan''s academic stage. Yes, you will be a senior in college next year, so I asked you if you are a good prospect. ?Du Yishan nodded, showing a satisfied expression. The surrounding ambient temperature seemed to have become higher in an instant. There is nothing to say about Academician Dus vision, but this is a direct way to study for a doctorate Tang Lin Tianxin said that this was not just a good seedling, but a monster, but it was not easy for him to make such a request to the principal twice in three years. But Du Yishan didn''t care about this. He hesitated a little when he heard Tang Lintian''s answer, and immediately put on a serious expression: "I have to make it clear to you, Xiao Chang has already published a paper in the Journal of Aeronautics and Astronautics, and also helped the 603 Institute to complete a project. His score is the first in their class this time. You just have a good theoretical foundation." Ive also seen that students like this dont happen every year. In fact, Chang Haonan''s paper has only been submitted for a little more than a week and is still in the review stage. ?However, based on the quality of that paper, this statement cannot be considered a lie. It will be only a matter of time before it is published. "If he really wanted to just study for a master''s degree, then Xiao Chang could definitely go to a better school. I had to personally come forward to get him to agree to stay with us and directly study for a doctorate. Don''t you, Dean Tang, think this is such a great thing. If you really want to study abroad, you can still get a bachelor''s degree abroad. If you don''t go back, it won''t be just our school that loses." ?Du Yishans words were of a very high level, and all the parts that can be directly verified are absolutely true, but elsewhere he was bluffing a lot, and it was also laced with serious workplace PUA. ???In short, after Tang Lintian heard this, he felt ashamed of his hesitation just now - facing such a genius, you can''t even do such a small thing as making an exception and applying for a direct PhD, so why are you so embarrassed to be the dean? ThenIll go find the principal tomorrow. Huh, thats pretty much it. ?Du Yishan showed a satisfied expression after getting what he wanted, then unbuttoned the top button of his shirt and stretched his aching neck. When the two returned to the classroom, Chang Haonan happened to be answering Professor Liu Hongbo''s question. The latter was recently studying the wind load effect of very large oil tankers through computational fluid dynamics methods. For this purpose, the existing CFD software needed to be restructured. Compile. "The compilation of solvers and libraries can be done through the wmake compiler. Wmake requires a file list during compilation. In addition to the icoFoam.C source file and the createField.H header file, the files and options files are also required during the compilation process. make file..." ?Du Yishan and Tang Lintian saw Chang Haonan draw a tree diagram of the file structure on the blackboard at the door. This is C++...can he program? ?Tang Lintian suddenly doubted the authenticity of what was happening in front of him. Otherwise, you think I would just pull this old face off and apply for an exceptional opportunity to directly study for a Ph.D.? Du Yishan said and found a seat near the door to sit down: You can ask Liu Hongbo about programming. He has done a lot of research. In fact, he discovered Xiao Chang and recommended it to me during class. Tang Lintian didnt believe this sentence at all. He was almost certain that Du Yishan snatched the person away. At this time, Chang Haonan happened to have finished answering Liu Hongbo''s question. Although the enthusiasm for asking questions in the audience was still undiminished, it was indeed a bit late. In addition, he was worried that Chang Haonan''s physical strength might not be able to bear it. Du Yishan had no choice but to go on stage in person and give a brief summary. This was a brief summary of the scale of this event. The grand group meeting came to an end. (End of this chapter) Chapter 43 New model Chapter 43 New Modification The action at Institute 611 was quite rapid. Two days later, Chang Haonan met Lu Yuying who rushed to the capital by plane. After the team meeting yesterday, he opened the system and took a look and found that the scientific research points had become 36 points. Obviously, although he was talking about things that had been done before, the audience below was no longer 4 professors but more than half of the college, including many influential professors, so he still received 10 scientific research points. ??As for Lu Yuying, who is sitting in front of him now, although there is only one person, his influence is no less than that of the hundreds of people yesterday combined. In fact, when Chang Haonan received the call from this person yesterday morning, he even felt for a moment that he was not a liar. After all, his paper has not been published yet. Even if I later figured out the whole story, I still felt a little confused. ??Lu Yuying''s name may not be well-known outside, but it is well-known within the aviation system, especially the aviation system in this era. Since the J-7C/D model is not a success, and Song Wencong has served as the chief designer of Project 10, he is currently the person with the most say in the J-7 series of aircraft models. ??Although the purpose of publishing the paper was to be seen by people within the aviation industry, Chang Haonan really did not expect that the first person who contacted him would have such weight. Hello, Chief Master Lu. Comrade Xiao Chang, nice to meet you. After meeting, the two shook hands and then sat in a small conference room specially arranged by the college. ??Although Lu Yuying has a high status in the aviation system, his identity is sensitive after all, and it is difficult to publicize his itinerary. Therefore, the only people on Beijing Airlines who know about this matter are Du Yishan and Tang Lintian. The latter really didnt expect that only ten hours later, he would see this student again on such an occasion. In fact, even Tang Lintian didn''t need to know, but Du Yishan suddenly said last night that he was rushing to Shengjing for a meeting, so he left the reception to him. Since we had already communicated on the phone yesterday, Chang Haonan came prepared. After sitting down, he took out several floppy disks containing engineering documents from his school bag, as well as the complete calculation instructions that were handed in first. An assistant next to him opened the laptop and inserted the first floppy disk, while Lu Yuying put on his glasses and began to flip through the paper document. Comrade Xiao Chang, Im a little curious. Since you deliberately concealed part of the content in the article published in the journal, why did you bring it out so readily now? ?Lu Yuying raised her head slightly, looked at Chang Haonan sitting opposite and asked. It is no boast to say that the design methods I reflected in these engineering documents should be considered relatively advanced in the world, so at least in a short period of time, we cannot just let foreigners learn them casually. " ?This is not the first time Chang Haonan has been asked similar questions, so he answered almost without thinking: And now that you are asking in person, Commander Lu, I have no reservations. After all, these studies are originally intended to enable China to build better aircraft. After hearing these words, Lu Yuying''s slightly narrowed eyes suddenly widened a little. No wonder he was shocked. Chang Haonan''s thoughts would have been normal 20 years ago or 20 years later, but in the mid-1990s, it was indeed quite rare. After being silent for a long time, Lu Yuying nodded: "You are worthy of Comrade Xiao Chang to have such awareness!" ?This somewhat lackluster sentence made Chang Haonan a little confused. Why did the other party suddenly act like he had known him before? In fact, since Chang Haonan already knew Lu Yuying''s name, when the two talked on the phone yesterday, they introduced themselves very briefly. In addition, Du Yishan, who is the tutor, did not show up today, so just like Tang Lintian yesterday, Lu Yuying still does not know Chang Haonan''s true identity as a student. He always thought that the other party was a young teacher poached from abroad by Beijing Airlines. . And in this year when others are rushing to go abroad, it is natural to choose to return home voluntarily and show such a high level of awareness. ?This is where the slightly strange exclamation just came from. After all, Lu Yuying was very familiar with the J-7 aircraft, and had already done some research on the design of the mandibular inlet before, so it only took about forty minutes to read the technical documents provided by Chang Haonan. Comrade Xiao Chang, the degree of completion of your design... indeed far exceeds my imagination. "General Manager Lu was very impressed. Although I am very confident in my integrated design of the inlet/cone front body, when it comes to the overall design of the aircraft, it can only be regarded as the beginning. Many details need to be designed." Improve and optimize the hole data, so that..." Before Chang Haonan finished speaking, Lu Yuying waved her hand: "I can see this without saying anything, but it''s amazing that you can come up with such a preliminary design plan without the relevant hardware. If I hadn''t seen it with my own eyes, I wouldn''t have believed it. of." As for the subsequent work, we people in the aviation industry system are not people who live for a living. Do we have to wait for others to feed us everything? Hearing this, Chang Haonan also laughed. Indeed, in the last life, without the help of his plug-in, didnt the comrades in the aviation industry build the J-20 15 years later in 2011? I did underestimate their ability to act just now. So, I dont know what your thoughts are on this design plan Chang Haonan asked tentatively again. Although the initial purpose of using it as a stepping stone has been exceeded, he will never mind getting one fish and two fish to gain more scientific research points and experience points. ?Due to lack of relevant experience in the previous life, the J-7FS project actually had a strong experimental meaning from the beginning. The S in the model name FS means "test". But now, with the more complete design method provided by myself, I wonder if there is a chance to turn the J-7FS into the J-7F? To tell you the truth, I do have a few more ideas about the design of the radome, that is, the cone front body, and I would like to ask Comrade Xiao Chang for your opinion... In fact, Lu Yuying already had a relatively clear plan in mind when he saw the paper for the first time. After seeing the engineering documents provided by Chang Haonan, he was even more delighted to discover that the actual performance potential of this design was actually greater than what was written in the paper! ?So he had a bolder idea, which was to further increase the diameter of the radome to 600mm to install a new model of pulse Doppler (PD) radar under development. As for the increased weight, it can be compensated by changing the radome wall structure from a solid half-wave wall to a lighter C-shaped sandwich. ??But considering that in this design, the radome itself is still part of the air intake structure and is responsible for first-level compression of the incoming flow. So this seemingly small change may affect the whole body. ?Thats why I wanted to ask Chang Haonans opinion. Obviously, Lu Yuying is serious about this model. (End of this chapter) Chapter 44 Fuji Electric’s small moves [please read] Chapter 44 Fuji Electrics small moves [Please read] ?At the same time that Chang Haonan and Lu Yuying were exchanging design plans, they were in a closed factory area on the outskirts of Fucheng City, Sichuan Province. ?Two men, one tall and one short, with a bit of a charlatan attitude got out of a slightly dilapidated Changhe CH6320 van. ?The short man among them looked powerful at first glance, and he was carrying a camouflage bag in his hand. ?Judging from the specially reinforced carrying beams and the handles deeply embedded in the palm of your hand, the contents inside must be quite heavy. But in this mans hands, it was as easy as a ball of cotton. The tall man who followed him had a tough face and sharp edges, and his figure was much thinner than the former. But if you look carefully at his palms and forearms, you can see the traces left by long-term practice of foreign martial arts. Definitely a more difficult character to mess with. At this time, a woman wearing a black women''s suit trotted over from a distance. After standing still, perhaps because she seldom exercised strenuously, the woman bent over and took several breaths before she finally recovered. You two should be Boss Yan and Mr. Hao, right? I am Gu Lin from the Technology R&D Department of Changhong Group. You can just call me Secretary Gu. That''s right, of the two people who got off the car, the shorter one was Hao Dagang, who had had a relationship with Chang Haonan before. The other one was called Boss Yan, but he didn''t look like a boss at all. Yan Wenbin. Hello, Secretary Gu, we are here to find Engineer Wang Luoyong. "I know, it was Minister Wang who asked me to pick you two up. Please come with me." Gu Linchao turned around and led the two of them towards the R&D center not far away. ?Ten minutes later, Yan Wenbin and Hao Dagang finally arrived at the door of Wang Luoyong''s office under the leadership of Gu Lin. ??But before Gu Lin could make a move, the door in front of the three of them suddenly opened, and a man in a suit and leather shoes walked out, with a defiant look on his face. Then she pushed past the skinny Gu Lin and went straight down the stairs. At this time, Wang Luoyong also heard the movement at the door, raised his head and saw the three people outside. Okay, Secretary Gu, go ahead and do your work first. ?Wang Luoyong put down the multimeter in his hand, stood up, and waved to Gu Lin, who was standing at the end. Okay, Minister Wang, call me if you have anything else. ?After watching Gu Lin leave the office, Wang Luoyong turned back to the two people waiting next to him. Uncle Yan, have you brought your new fan sample? In fact, the reason why Yan Wenbin was able to get a second chance after failing in the first bidding was that in addition to Changhong Group''s idea of ??increasing the localization rate of parts and components, it was also inseparable from Wang Luoyong''s role in it. role. Yan Wenbin was a scout when he was young. He once saved the life of his battalion commander, Wang Luoyong''s father, during the war. It is also for this reason that although Yan Wenbin is not a few years older than Wang Luoyong, the latter still calls him Uncle Yan. "I brought it, it''s all in Xiao Hao''s bag." Yan Wenbin pointed to the camouflage bag that Hao Dagang had just placed on the ground: "There are some specialties in it for the old battalion commander. We have a tight schedule this time. Maybe I dont have time to go see him specifically. ?Wang Luoyong unzipped the camouflage bag. In addition to a few wooden boxes containing fan samples, there were some packaged mountain goods. Dont worry, we understand the rules. Its not something valuable, otherwise I wouldnt dare to bring it to you. Yan Wenbin laughed as he watched Wang Luoyongs careful inspection. "Uncle Yan, you don''t know that the last time the bidding was postponed, our technology research and development department was under a lot of pressure. Fuji Electric''s public relations department is very powerful, so I have been careful lately, for fear of being caught. So You must not leave these things with me. ??Wang Luoyong said as he took out the wooden box, stood up, took Yan Wenbin and Hao Dagang and walked outside the office: Lets go, lets go to the testing center first. "Is it so serious?" Hao Dagang asked in surprise: "Shouldn''t it be your boss who has the final say on what brand of parts to use?" Yan Wenbin next to him saw some clues from Wang Luoyong''s tone and expression. After the last bidding, Wang Luoyong told him that as long as the improvement plan they submitted this time was not much worse than Fuji Electric''s model in terms of performance and provided some advantages in cost, Changhong Group would choose Domestic fans as an alternative. ?That''s why he asked Wu Yifan to find someone to optimize the fan performance. Dayong, has the situation changed again? Yan Wenbin asked tentatively. "Sigh..." Wang Luoyong put on the blue work clothes used for testing and sighed. He hesitated for a moment before replying: "Uncle Yan, I didn''t expect that the Japanese would do so many tricks..." Whats going on? Hao Dagang and Yan Wenbin spoke almost at the same time. After the previous announcement of the extension of the bid validity period, suddenly a local company in Sichuan Province called Hongxiang Electric Machinery Factory also submitted a new design sample. The technical specifications are almost identical to the Fuji Electric model. Butwhat does this have to do with the Japanese you just mentioned? Hao Dagang looked at Wang Luoyong, who was bowing his head in silence, and Yan Wenbin, who had a serious look on his face. He still didn''t understand the situation: And if there is such a company in your local area, why didnt they participate in the last bidding? "this" ?Wang Luoyong scratched his head, and after confirming that there was no one else nearby, he explained in a low voice: "The original Hongxiang Motor Factory went bankrupt in 1992. Now this is a joint venture company established with Fuji Electric. It is said to be a joint venture, but in fact it is an assembly plant. I took it apart during the inspection before and found that the blades and bearings were all damaged. I bought it directly from Fuji Electric. Can this be considered domestically produced? Hao Dagang was dumbfounded after hearing the explanation. ??If Chang Haonan heard this conversation, he would probably be familiar with this word game that disguises imports as domestic products. But for Chinese companies in this era, this kind of trick is still very unfamiliar. ?After hearing Wang Luoyong''s answer, Yan Wenbin''s face showed an expression of sudden realization. Changhong Group is a local state-owned enterprise managed by Sichuan Province. Obviously, Sichuan Province has very good motives and requires Changhong Group to choose a company in the province to become a parts supplier. Whats more, the performance of the parts provided by others is inherently better. After two rounds, the advantage on his side was reduced to one advantage. Wang Luoyong is obviously very helpless about this: "Although the structure of the axial flow fan is very simple, after all, the final production process is local in Sichuan Province, and Fuji Electric is only a second-tier supplier. On paper, it can indeed be counted as domestically produced, but in fact everything, including The technicians we work with are all from Fuji Electric. So when we first came here, the person who walked out of your office was a Japanese? Hao Dagang thought of the man he met at the door of Wang Luoyongs office not long ago. You **** Japanese, they are just a Japanese comprador, relying on all the technologies provided by Fuji Electric to make fun of me... Wang Luoyong was obviously a little angry when he mentioned this matter: The original director of Hongxiang Electric Machinery Factory contracted the factory at a low price during the restructuring, and then declared bankruptcy and liquidation. He accepted the capital injection from Fuji Electric to establish the current joint venture Hongxiang Electric Machinery Factory. MD, what a scum ?After hearing the identity of that person, Hao Dagang, who was already more arrogant, subconsciously wanted to spit, but he held it back thinking that he was still in his office building. (End of this chapter) Chapter 45 Fan design with dimensionality reduction Chapter 45 Fan Design for Dimensionality Reduction Strike "Then...then we have no chance?" ??Yan Wenbin''s face was full of unwillingness. Not only because he has invested a lot of energy and cost in this project, but also because he originally planned to use this order from Changhong Group to build the reputation of his Owl brand motor in the industry. "That''s not necessarily the case." Wang Luoyong shook his head: "Given the size of our Changhong Group, we still have some say, so there is no room for maneuver." Uncle Yan, if your Owl Motor products can surpass Fuji Electric in both performance and cost, then we will have the confidence to convince the superiors. In the final analysis, this matter was because the method of creating opportunities for Yan Wenbin by extending the bidding deadline was too crude. Therefore, Fuji Electric discovered the key to the problem and then seized the loopholes in the localization rate statistics method. Just stole the house. In addition, the Changhong Group is not completely reasonable, so they dont dare to speak too loudly. But if Yan Wenbins Owl Motor can produce a more convincing sample than Fuji Electric, then the situation will be completely different. At least from the perspective of Wang Luoyong and Chang Hong Group, they have the capital to argue with their arguments. "But" As a veteran who only went to junior high school, Yan Wenbin is not very technical, but he participated in the entire bidding process last time, and he still has a rough estimate of the gap between his own products and Fuji Electric. Although he did not know the term marginal effect, his past experience in the army told him that it is easy to improve training results from unqualified to qualified, but it is more difficult to improve from qualified to excellent. After passing the excellent line, he wants to continue to improve. , then it will take even more hard work. The product produced by Fuji Electric is obviously the result of continuous improvement. Therefore, although Hao Dagang was full of praise for the college student who optimized the design, Yan Wenbin found it hard to believe that someone could make the performance of the fan surpass that of the opponent in less than a week. ?However, Hao Dagang next to him seemed more confident: Brother Yan, I think we may not have no chance. I have read the design document provided by Brother Chang, and it makes some sense. After hearing this, Yan Wenbin had no choice but to nod his head and said to Wang Luoyong next to him: No matter what, we are here, lets do a test first and see the results before talking. Uncle Yan, brother Hao, come with me. ??Wang Luoyong picked up the small wooden box with the fan next to it and walked into the testing workshop with Yan Wenbin and Hao Dagang. ?Although he also wanted to help with this matter, there was really nothing he could do now. Forging test data, on the one hand, he didn''t bother to do it, and on the other hand, it was completely useless. It was only a matter of time before he was discovered. And more importantly, if we rely on this method to increase the localization rate, wouldn''t it be no different from that of Hongxiang Motor Factory? Its just that the specific process of counterfeiting is different. ?With such regret and guilt, Wang Luoyong placed the wooden box in his hand next to the test equipment, and then opened the lid. There are 6 fan samples neatly stacked inside. Should I say it or not, your injection molding process has made a lot of progress? Since the fan is placed vertically, Wang Luoyong cannot see the blade style at first glance, but even with just a glance, Wang Luoyong can notice the improvement of the manufacturing process. Actually, the process itself has not changed much. On the one hand, the proficiency of our workers has improved. On the other hand, the mold manufacturer said that the manufacturing difficulty of this new blade shape is relatively low. As for technical matters, Hao Dagang naturally gave the answer. ?Wang Luoyong nodded, then randomly pulled out a fan from inside and prepared to install it on the motor of the air duct test bench. ! The moment he saw the shape of the fan blades, he couldn''t help but exclaimed: Your leaf shape is indeed a bit novel. I have worked in Changhong for so many years and I have never seen a similar design. There is no praise or irony in this sentence, it just feels... very fresh. We found someone from Beijing Airlines who studied aircraft design to do this. He may have some different ideas in this regard. Hao Dagang was not surprised by Wang Luoyong''s reaction. In fact, when he saw this leaf shape for the first time, he had similar thoughts to Wang Luoyong. But after reading the technical documents provided together, although he did not fully understand it, he at least believed that the other party did have his own complete calculation ideas, rather than just making a strange and exaggerated design to attract people''s attention. Learn to fly? ?In this era, the aerospace field still has a somewhat otherworldly tone, so it is not common for relevant technologies to be "decentralized" to the general civilian field. It is normal for Wang Luoyong to be surprised by this. Well, I have a distant relative whose child is studying at Jinghang Airlines. He said he has a classmate who is pretty good. ??The person who spoke this time was Yan Wenbin, who had been silent just now. ?While several people were chatting, Wang Luoyong did not delay his movements at all. At this time, he had already begun to test the first fan he had just taken out. ? Yan Wenbin and Hao Dagang stood behind him, nervously waiting for the test results. As the data was recorded on the graph paper one by one, the performance curve of this new fan gradually took shape. Logically speaking, a series of calculations need to be performed later to obtain the final required data. ??But Wang Luoyong has tested the samples brought by Fuji Electric many times before, so... Oh my godis this data real? ?Wang Luoyong murmured in an unbelievable tone. The direct result of the fan test is the curve of the total pressure coefficient and fan efficiency with respect to the flow coefficient. Generally speaking, different blade designs will have advantages in different flow coefficient ranges, so the so-called advantages and disadvantages are actually a process of performance trade-offs. . But this time is different. ? Yan Wenbin brought this sample with a somewhat strange blade shape. In the entire flow coefficient range he tested, its performance had the advantage of rolling crushing level. ?Especially under the most common working conditions of axial flow fans, the efficiency is even astonishingly more than 15% higher than that of Fuji Electric products. To say that you are crushing is to be modest, it is simply a dimensionality reduction attack! How is the situation? Seeing Wang Luoyong''s unusual behavior, Hao Dagang quickly stepped forward and asked. "I" ?Wang Luoyong looked at Hao Dagang''s eager eyes, but he couldn''t say any words of praise for a while. ?This result was so exaggerated that he was a little worried that there was something wrong with his test just now. Brother Hao, dont worry, wait until I finish testing all these samples. After finishing speaking, Wang Luoyong quickly replaced the second fan in the box, then called another technician from the next door office and asked him to take the first fan to the semi-anechoic room to measure the noise level. ??However, Yan Wenbin, who had always seemed a little anxious before, calmed down, patted Hao Dagang on the shoulder and whispered: Dagang, I think the result may exceed our expectations. (End of this chapter) Chapter 46 Aviation technology to **** you Chapter 46 Aviation Technology to **** you ? Yan Wenbin and Hao Dagang had been waiting at the test center until it was time for dinner. Wang Luoyong finally measured all the data of the six fans. Uncle Yan, I have to admit, when you said you had found someone who designed an airplane for help, I didnt take it seriously at first. Wang Luoyong held the test reports of the six groups of samples in his hand and let out a convinced sigh: But now I regret a little bit. I didnt learn to build airplanes when I was in college. The design of this fan is simply... simply amazing. So the performance is better than that of Fuji Electric? ??Although he could roughly guess the meaning of Wang Luoyong''s words, Hao Dagang, who was afraid of having an empty rejoicing, made sure again. Not only is it better than Fuji Electric, I even think that this is the best solution for our air-conditioning working environment. That...means we might win the bid? ?Hearing Wang Luoyong''s answer, even Yan Wenbin, who had been tense all the time, smiled. Thats so humble, Uncle Yan. Its not time to get off work yet, so Ill go find the general manager right away. While Wang Luoyong was talking, he had already stuffed a sample fan and the test report into his briefcase: Your samples are 15% more efficient than Fuji Electric, and the noise is at least 5-6 decibels lower, and the price is only 80% of theirs. Today, the King of Heaven is here, and we at Changhong Group will also use your products! Eighty percent? ? Yan Wenbin and Hao Dagang looked at each other: During the last bidding, our quotation should only be 50% of Fuji Electrics, right? I said 80% success! Wang Luoyong took off his work clothes and waved his hands to the two of them: Competition in the air-conditioning industry has been very fierce in recent years, so OEMs often lower prices with upstream suppliers. If they quote higher prices now, they will have more room for maneuver at that time. After Yan Wenbin heard this, he nodded thoughtfully and said nothing more. He also knows that this kind of thing is definitely not something he can say to anyone casually. If it weren''t for his relationship with the other person''s father, Wang Luoyong, an employee of Changhong, might have to help the group lower the price. ?Before leaving, Wang Luoyong called Gu Lin over again and asked her to take the two of them to eat first and then stay at the guest house within the group. After all, it is a major event involving the entire groups new generation product line, and it will take a few days to complete the decision-making process. Subsequently, Wang Luoyong almost ran all the way to the door of general manager Zhao Xin''s office. As the head of the group''s technology research and development department, he is naturally qualified to directly meet with the senior management of Changhong Group. Mr. Zhao, we have a solution, we have a solution! Out of breath, Wang Luoyong took out the test report from his briefcase and placed it on Zhao Xin''s desk. The latter also had a technical background and was the chief engineer of Changhong Group before taking over as general manager, so he didn''t find anything unusual about Wang Luoyong''s performance. He just handed him a bottle of water and told him to take a breather and rest. He picked up the report without thinking about it. After looking at it for a while, Zhao Xin frowned slightly. Minister Wang, I remember that Boss Yan from the Owl Motor Factory is probably a comrade-in-arms with your father? Facing this question, Wang Luoyong, who had just finished half of a bottle of water, was stunned for a moment. Obviously, Zhao Xin has long known about the relationship between himself and Yan Wenbin. Then he immediately realized the meaning of Zhao Xin''s question. Mr. Zhao, the results of this report are indeed a bit... exaggerated, but I assure you that there is absolutely no falsehood at all. Several colleagues from the technical department were also present when I was doing the test, and they can also prove it. After hearing Wang Luoyongs explanation, Zhao Xin nodded slowly. It''s not that this explanation is very convincing, the main thing is that he has also realized that for technicians like Wang Luoyong, forged reports will not have such outrageous data. But this performance, especially efficiency After the initial shock, Zhao Xin gradually calmed down. He knew that he could not show more doubts about his capable generals at this time, so after hesitating for a moment, he raised his head and asked: Do you know how they made improvements? I remember that during the last bidding, the performance of the samples provided by this Owl Motor Factory was worse than Fuji Electric. They said they found experts in aircraft design from Beijing Airlines and optimized the blades based on the ideas of designing aircraft engines. ??Wang Luoyong actually didn''t hear too many details from Yan Wenbin and Hao Dagang. He only knew that he had found someone from Beijing Airlines to help, but this did not delay him from processing the actual situation. ?Even by some mistake, he actually misunderstood Chang Haonan''s thinking at that time. Plane engine? ?After hearing this answer, Zhao Xin''s expression gradually became subtle: Minister Wang, do you think our entire new generation product series can use this as a publicity stunt? ?These days, the vast majority of Chinese people have never flown or even seen an airplane. So airplanes are still a mysterious thing to them. It is perfectly appropriate to use this kind of thing as propaganda. By plane? ?Wang Luoyong instantly beamed with joy. Since Zhao Xin had already begun to consider publicity issues, there was no need to say more about the final choice of fans. For a moment, the news report about fighter jets he had seen on TV came to his mind. Mr. Zhao, why dont we use the words aviation technology to **** you in our advertising slogan? Okay! Just use this plan! Okay! Just use this plan! In the Haojing 603 Institute, 600 kilometers away from Fucheng, chief engineer Yi Yuanhe held a test flight report in his hand and clapped his thigh excitedly. ?After receiving the data and materials from Du Yishan a few days ago, he and director Zhou Yonghang started modifying the Y-7-100A aircraft almost overnight. Since the first phase of the plan does not require replacement of the wings, it is just a feasibility study on active flutter control. Therefore, in order to improve efficiency, the flight control engineer did not even rewrite the entire flight control, but followed the control rate provided by Chang Haonan. , an active flutter control system was made separately for the wing and installed on the 01 flight test verification aircraft. Of course, this is only a temporary change for flutter test flight. If it can be proven that this active control logic is indeed available, then when the new wing is installed later, this system will still have to be integrated into the new flight control program. Go. In short, after several days of hard work, the upgraded and modified No. 01 aircraft finally completed the flutter test flight again this afternoon. The process went smoothly. Active vibration control is feasible! Thanks to the book friend [Danqing Mozi] for the reward of 700 starting coins! Thanks to the book friend [33021208462734] for the 100 starting coin reward (End of this chapter) Chapter 47 Active flutter control, success! Chapter 47 Active flutter control, success! ?After passing the first phase of verification, Yi Yuanhe immediately organized manpower and began preparing to replace the No. 01 demonstration aircraft with a new wing, and made corresponding adjustments and upgrades to the flight control for the new wing. As for the director, Zhou Yonghang, he went directly back to the office and prepared to call Du Yishan to inform him of the exciting news. ?But just when he picked up the receiver of the red phone on the table, a bald white man walked in from the door. Director Zhou, what happened? I saw that No. 01 had just performed a test flight, and then your people dragged it into the workshop instead of the hangar. Is there any malfunction? Dont worry, Mr. Hogent, Unit 01 is in very good condition. Zhou Yonghang put down the phone and looked at Hogent, who was panting slightly because he went upstairs too fast and was a little nervous, and said with a smile. He also took out a teacup and gave the latter a glass of water. Hodget was obviously relieved after hearing this answer, took the tea cup and sat on the sofa next to him: Since there is no problem, why should the aircraft return to the final assembly workshop? After all, this is the critical stage of airworthiness certification, and it is best not to make changes to the technical status. As a technical consultant for the 7-200A aircraft, Hogent does not have to bear any responsibility, but as a senior engineer of British Aerospace Corporation, he still has to consider his reputation in this industry. So he does not want to see the risk of extraneous matters or delays in this project. It is impossible to change the wings of an aircraft, a huge change that can be seen at a glance, and there is no need to hide it, so Zhou Yonghang, who sat back behind his desk, answered directly: After detailed technical demonstration, we decided to upgrade the No. 01 aircraft with a newly designed wing. Considering that the new wing can bring huge performance advantages, a slight delay in the airworthiness certification work is acceptable. New wings? Hawking, who had just breathed a sigh of relief, stood up again and even spilled a little of the water in the cup: But I have told you before that the new wing will easily induce flutter when installed on the aircraft, and safety cannot be guaranteed at all! I understand that you want to build a passenger aircraft with advanced performance, but before you want to run, you must at least learn to walk. Such recklessness may lead to the crash of the aircraft and the death of people! ?Hodgets Chinese is very good. He only uses English when discussing technical issues because he is worried that the expression will be inaccurate, so these two sentences really made him speak with a bit of momentum. "Mr. Hogent, of course we are not reckless. In fact, the test flight just conducted was to verify a new technology of flutter control, so now we have the ability to replace the aircraft with new wings while ensuring safety. " When he said this sentence, Zhou Yonghang simply felt more relaxed than ever before. To be fair, among the foreign experts invited by 603, Hawkint from the UK is considered the most responsible one, and he is not shy about imparting some of his experience to Chinese engineering personnel. ??But no matter what, these foreign consultants usually look at China Aviation Industry with a more or less condescending attitude. Who makes you lag behind others? But this time the situation is completely different. What others are still on paper, we have already realized. ?This experience Comfortable! New technology for chatter control ??The expression on Hogent''s face changed: "But I am the technical consultant responsible for the aerodynamic analysis of this model. Why am I completely unaware of such a major improvement? How does this new technology work? How can I ensure that the subsequent airworthiness certification work is carried out safely?" "Mr. Hogent." ?This series of questions made Zhou Yonghangs expression become serious: It is true that you are the technical consultant responsible for aerodynamic analysis, but according to the contract, the final decision on aircraft design rests with us. Your job is only to solve the technical problems raised by us. We are not obliged to inform you of all the details of the aircraft design. As for the principles and implementation methods of new technologies, these are the technical secrets of our Chinese Aviation Industry. I dont think Mr. Hawking can just hand over the core technology of your British Aerospace Corporation to us, right? "this" ?Hokgent was speechless by Zhou Yonghang''s two words. After opening his mouth, he couldn''t say anything else. After sending Hogent away, Zhou Yonghang, who was in his sixties, almost jumped back to his desk and picked up the phone receiver again. Lao Du, its successful, weve succeeded here! After the call was connected, Zhou Yonghang was so excited that he didn''t bother to introduce himself. In addition, his voice was slightly distorted. Du Yishan was even stunned for a moment before he realized who was on the other side of the phone. "Is it... is it Lao Zhou? Did you verify the active vibration control successfully?" ??Although I had great confidence in Chang Haonan before, when he really heard the news, the latter''s voice was still a little trembling. After all, this is the first time that Chinese people have been at the forefront of the world in aerospace engineering applications. For these older generation aviation people who have learned and imitated step by step, how can they express their feelings clearly in words? Yes, we have just conducted a test on Unit 01, and the results are indeed the same as the data you got that day. It can increase the flutter critical speed by at least 10%! Zhou Yonghang on the other side of the phone was also excitedly wandering within the length of the phone line: We have already started to replace the wings and flight control of the aircraft, so that the performance of the new Y7-200A will definitely surpass that of the ATR42, and we can finally make a turnaround! No, this is not only a turnaround for the Y7-200A model, but also a turnaround for our 603 Research Institute and even our China Aviation Industry! Lao Du, you didnt see the look on his face just now when the Englishman Hawkint came to ask me what was going on with the new wings. I said it was a technical secret and I had no comment. In the past, foreign experts blocked our technology. I never expected that I, Zhou, would have the opportunity to say this to foreigners! ?Zhou Yonghang talked endlessly into the phone for several minutes, and there were some tears in his eyes at the end. ??Like Du Yishan, he is an old technician who has followed the new China''s aviation industry from scratch, and he is really looking forward to a day when he can feel proud. Although many parts of this Y-7-200A are made in foreign countries, even the prototype of this aircraft is copied. But at least, now we finally have our own core technology on it. A journey of a thousand miles begins with a single step. (End of this chapter) Chapter 48 [Please read it! 】New boat, set sail Chapter 48 [Please read it later! New boat, set sail ?After venting his excitement on the phone, Zhou Yonghang finally calmed down. He recalled that Du Yishan seemed to have said on the day he came to 603 Institute that the flutter analysis work of the wing and the subsequent control rate design of the active stability control system were all completed by one of his students. Lao Du, when the Y-7-200A aircraft is replaced with a new wing and completes its first flight, I will definitely give you and your student credit for it! ?Du Yishan and Zhou Yonghang on the other end of the phone are also old acquaintances. How could they not know what the latter is thinking: Oh, you are so proactive about asking for credit. Do you think you are interested in my students? "Don''t say that. Your students and my students are all students of the country." Zhou Yonghang, who had his mind exposed, did not feel embarrassed, but continued: Besides, Qi Laodu is now relegated to the second line, and he doesnt have a main model in his hands. Such a talented young man still has to go to a first-line unit like us to gain experience after graduation. ?However, Du Yishan was completely unmoved: You old fox, I can hear the abacus in your heart even in Shengjing. But this time you must have miscalculated. This student is only in his third year of college this year and is still a few years away from graduation. You probably wont be able to benefit from him before you retire. Junior year? Zhou Yonghang, who sat back on the chair on the other side, looked like he had seen a ghost: "Don''t lie to me. I have read the technical documents. There are many things in them that are not covered at the undergraduate level." "If you don''t believe it, you can come to our Beijing Airlines and have a look. It won''t do any good if I lie to you about this kind of thing. Besides, how can you be called a genius if you have to wait for everything to be taught in class? Take a graduate course in advance for your undergraduate degree. There are quite a few students every year, and I can only say that they are indeed geniuses. Although he said this, Du Yishan could also understand his old friend''s mood. Even he himself was repeatedly shocked by Chang Haonan when he first came into contact with him. "Really a junior?" Zhou Yonghang heard that Du Yishan''s tone did not sound like he was joking, so he could only sigh and said with some pity: Theres really nothing we can do about it. Its still ten years before I graduate with a Ph.D., so I cant wait any longer Few people know that Chang Haonan made an exception and went directly to study for a doctorate. Therefore, Zhou Yonghang calculated the time according to the normal master + doctorate process. ?However, at this time, Du Yishan changed the topic: "But Lao Zhou, you were right just now. Such a talented young man really needs to go through first-line project experience before he can become a great person." "oh?" ?Zhou Yonghang felt that things seemed to be turning around, and he suddenly became interested: "What do you think?" "Well...I need you to do me a favor." Du Yishan thought for a moment and replied: But lets start with the ugly story. Although I am indeed prepared to let him participate in major projects in advance, your new passenger plane is not good and not qualified. Are you going to let him Considering that Du Yishan was having a meeting in Institute 601, and that he actually felt that the Yun 7-200A project was not qualified, Zhou Yonghang guessed what the other party was thinking almost immediately. "Just guess it, no need to say it." Du Yishan knew that Zhou Yonghang would definitely understand what he meant, so he did not let the other party continue: "Just tell me whether you can help me with this, right?" There was silence on the other end of the phone for a few seconds. Tell me, what do you want me to do? Huaxia Aviation Industry is a whole. Although there will be some competition between various institutes, Zhou Yonghang, as an old comrade, is not so narrow-minded that he only cares about the interests of his own 603 institutes and one family. Du Yishan was not polite when he saw this, and directly expressed his thoughts: Dont wait until the new wing completes its first flight. Havent you already determined that the active flutter control method is feasible? Now find a way to turn it into advanced experience as soon as possible and publicize it within the aviation system. By the mid-1990s, Project 83 was no longer as important as Project 10 and Project 11, but it was definitely not something Du Yishan could do in just one sentence. He must at least prove that this undergraduate student has sufficient ability. For such a large project, just a paper in an aviation journal is definitely not enough. That''s why Du Yishan needs to let the 603 Institute publicize the results of active chatter control first. By then, Chang Haonan, as the main contributor to this advanced experience, will have a completely different weight. Okay, Ill get someone to do it right away. ?Zhou Yonghang understood what Du Yishan wanted to do after a little thought, so he decisively agreed to the latter''s request. Originally, he planned to end the call like this, but then he remembered something: By the way, Lao Du, after the Y7-200A was equipped with new wings this time, it has actually been completely transformed compared to the old Y7. So I think it is inappropriate to continue to call it this name, both from a technical perspective and from a future market perspective. Please help us think of a new name. " ?The imitation prototype of the Y-7 aircraft is the An-26 transport aircraft put into use by the Soviet Union in the late 1960s, and both names have a relatively average reputation. Especially in the late 1980s and early 1990s, China Civil Aviation quickly lost interest in continuing to operate the Y-7 and Y-8 series transport aircraft after it came into contact with new aircraft such as the Tu154M, MD80, and Boeing 757-200 that were put into use in the 1980s. The improved version of the Yun 7-100 developed by 603 on the basis of the Yun 7 was quickly eliminated after a short period of service. So Zhou Yonghang actually had the idea of ??changing the name of the new passenger plane and starting over. He just caught up with the opportunity of this major wing modification. As long as he proposed it, he would probably get approval. give a name ?This problem really stumped Du Yishan. Mainly, the naming of aircraft in China in the past was really nothing fancy. They were simple aircraft types-numeric numbers, such as Yun-8, Qiang-5, J-H-7, etc., so almost no one had ever thought about this issue. Forget it, theres no rush in this matter. Just give me a call when you have an idea. Thats okay. I have time to ask Xiao Chang and the others for their opinions. Young people have more flexible ideas than us. ?After ending the call with Zhou Yonghang, Du Yishan made a direct call to Beijing Hang University. The first thing to do is to tell Chang Haonan that his active vibration control system has successfully passed the verification. ?However, Chang Haonan actually knew the news, so he didn''t show too much surprise. Because he happened to be looking at the system panel before, and then found that his scientific research points suddenly increased from 36 to an astonishing 76. Obviously, of the few things he has done so far, only chatter analysis and active chatter control methods may have such a huge impact. ??It''s just that this reaction made Du Yishan look at Chang Haonan a few times - Mature and prudent, neither arrogant nor impatient, he is definitely a person who can accomplish great things. So he quickly turned the topic to the second matter, which was to give the Y-7-200A aircraft a new name. This surprised Chang Haonan. Mainly because I didnt expect that this matter would happen in advance and it would fall on me. After thinking for a moment, Chang Haonan finally decided to use its name on the original timeline. Teacher Du, I think since this is Chinas first passenger aircraft designed in accordance with new international standards, why not call it Xinzhou. (End of this chapter) Chapter 49 J-7F [Recommended for the critical period, please read it! 】 Chapter 49 J-7F [Recommended for the critical period, please read it! One morning a week later, inside the wind tunnel testing center of the 611 Institute. ?Lu Yuying sat in the control room, waiting for the newly put into use wind tunnel to complete all the debugging work required for the inlet duct test. Hand beside him was the hastily produced scale model. After the meeting with Chang Haonan, Lu Yuying flew back to Chengdu almost non-stop with all the information provided by the former, and then quickly arranged for his engineers to work in two shifts 24 hours a day to start the final improvement of the design plan. . Since Chang Haonan has almost completed all the theoretical foundations and simulation tools required for the integrated design method of the air inlet/front fuselage, the entire initial design and proportional model manufacturing process has changed from the repeated obstacles some time ago and has been carried out successfully. Very smooth. In addition, considering that almost all of these technical materials are in electronic form, it is logical that Lu Yuying also tried computer-aided design in the completion process of this new J-7F plan. ?In the first two or three days, due to various reasons such as lack of proficiency in software operation and even some veteran engineers not knowing how to use computers, the progress was not even as good as the traditional method. However, after Lu Yuying withstood the pressure and replaced a group of young people, the efficiency advantages of computers gradually began to be reflected. ? Even many comrades who complained at first expressed their unwillingness to use pencils and drawing tablets again after adapting. Under the buff of such multiple factors, within a week, they even came up with two versions of the design that were slightly different. What is being tested today is a version called the J-7F2. Not long after, an engineer wearing light blue overalls walked in holding a report: Reporting to Mr. Lu, the wind tunnel inlet test system has been calibrated. The repeatability accuracy of the flow coefficient, total pressure recovery coefficient and distortion index are all within the range required by the design specifications. It is fully capable of undertaking formal model tests. Okay, lets get started. ??As Lu Yuying signed his name on the report, the wind engineers began to prepare intensively. Each working time of a supersonic wind tunnel is very short. Depending on the speed of the test, the long time can only reach tens of seconds, and the short time may only be a few milliseconds. If you want to fully test an aerodynamic design, it often takes months or even years. ??However, since the changes to the J-7F are not major, Lu Yuyings focus of testing this time was only the nose and air intake. Coupled with the simulation tools provided by Chang Haonan, the selection of test conditions is also targeted, and the number of tests required is only a fraction of the usual number. ?So early in the morning on the third day after the test started, Lu Yuying, who was sleeping in the office, was called to the wind tunnel center by a phone call. Mr. Lu, the difference between the wind tunnel test results and our previous calculation results is very small. There is no problem with this design! After seeing Lu Yuying, the engineer who had been on duty at the wind tunnel came over excitedly holding the test report: "The design method you brought back from Beijing this time is simply amazing. It can almost match the intake air flow rate below 70%, and this performance is simply inferior to our previous designs. Heaven and earth! ?Lu Yuying took the report and turned directly to the final conclusion. Okay, okay! Although he only said three words, it is not difficult to see from his trembling hands and facial muscles that this senior aircraft designer is also in great excitement, but with a higher concentration. Its a pity that there are currently no conditions for TPS model simulation in China. The accuracy of the simulation results of our ejection model under higher intake air flow conditions is average, so we can only do this. ??The young engineer who just brought the report said with regret. As for the wind tunnel, it doesnt mean that you can immediately use the full capabilities of a piece of hardware. In addition to the wind tunnel itself, the model used for the experiment, the way the test data is obtained and post-processed, and even the way the model is supported will all affect the accuracy of the test. Take the model just mentioned as an example. The TPS model, which has been widely used in developed countries since the late 1980s, except that the internal exhaust cannot simulate high-temperature gas, other conditions are very similar to those of real engines, which can save a lot of test flight hours. . Even for an ejection model with a relatively simple structure, the Siberia Chaplekin Institute of Aeronautical Science and Technology can achieve 100% intake air flow simulation through rich design experience. With the same model, the 611 Institute can only simulate 70%-80%. Its very helpless, but this is the foundation of Chinas aviation industry. Step by step, our countrys foundation is indeed weaker in comparison, but as long as we dont give up the pace of catching up, we will one day be able to make up for all these gaps. When Lu Yuying said this, he almost subconsciously thought of Chang Haonan whom he met at Beijing Hang University. ??If he was still 1% doubtful before, now looking at the report in his hand, he is completely convinced that the other party is the kind of peerless genius who can single-handedly promote technological progress. The next step is to build a prototype and then prepare it for test flight. ?Lu Yuyingzhi said proudly. But Mr. Lu, our funds for this project are almost running out. The engineer next to him warned carefully. Because this new J-7 variant has not found a launch user, the R&D funds so far have been squeezed out by the 611 Research Institute itself. It is barely enough for paper design and wind tunnel testing, but if you want to actually build one A plane is just a drop in the bucket. It doesnt matter, there will be a seminar this afternoon for the project leaders of our institute and nearby brother factories. I will solve the money problem. ??Lu Yuying said as he put the report in his briefcase into his briefcase and hurriedly left the wind tunnel test center. In the afternoon of the same day, Lu Yuying directly brought two versions of the J-7F design drawings, wind tunnel model and wind tunnel test results to the venue. The preliminary design of the improved J-7F is currently going well, and the wind tunnel test results show that its flight performance is significantly improved compared to the current J-7E... Last year, that is, in 1995, Israel upgraded a batch of deeply improved models called MiG-21 Lancers for Romania. This proves that many countries still need a low-cost second-generation improved fighter jet "Taking into account the market prospects, we have specially designed two sub-models, namely the J-7F1 with a radar diameter of 520mm, which can be directly upgraded from a MiG-21F or J-7M fighter jet, and the J-7F2 with a radar diameter of 600mm, but must be newly manufactured. During the development of the J-7F, we cooperated with Beijing Hang University and tried to adopt a fully digital design method for the first time, which greatly accelerated the design process. At the same time, we can also accumulate experience for the digital design of other models in the future To sum up, we believe that although the J-7F model has not launched customers, it has good market prospects and technical value, and can be considered for research and development in the form of self-raised funds. After Lu Yuyings introduction, the audience fell into silence for a few seconds. Thanks to the book friend [Danqing Mozi] for the 500 starting coin reward Thank you book friend [Xiao Xiao Zhen Zhen] for the 100 starting coin reward (End of this chapter) Chapter 50 Rob someone Chapter 50 Robbery In the context of market economy, self-funded research and development by state-owned enterprises or scientific research institutes was nothing new in the 1990s. But there is really no precedent for the aviation industry system. After all, the cost of developing a type of aircraft can easily reach hundreds of millions of yuan, and fighter jets are not like cars and home appliances that can enter the civilian market. When exported, international relations must be taken into consideration and cannot be sold casually. It''s very difficult. Hence, it is difficult for factories, which are generally strapped for cash, to decide to risk so much money. ?? But most of the people present today are from technical backgrounds. They know that the improved J-7F that Lu Yuying just came up with does have very little risk and is very marketable. In fact, after the Romanian MiG-21 Lancer mentioned by the latter was replaced with a new Israeli-made radar, the matching radome was designed and manufactured by the China Aviation Composite Materials Special Structure Research Institute. The director of this research institute is sitting in the first row. Even the 611 Research Institute itself has tasted a lot of benefits from the export of the J-7M in recent years, otherwise it would not have started developing the corresponding export model J-7MG immediately after the J-7E entered service. Comrade Lu Yuying, can you estimate how much money and time it will take to complete the model in your drawing? An expert from Liyang Engine Company first broke the silence. In terms of research funding, it is estimated to be between 40-50 million yuan. As for the time, I am confident that the first flight of the prototype can be achieved within a year! ?Lu Yuying replied almost without thinking. As the project leader, he has thought about this problem countless times. ?Originally, before getting help from Chang Haonan, the answer to this question was still 80 million yuan and 2-3 years. But after going to Beijing Hang University, Lu Yuyings confidence was completely different from before. This time, the silence was even longer than before. ?After more than ten seconds, a person sitting in the second row asked in a dry voice. Is it RMB? ?This somewhat nonsensical question made the atmosphere in the venue, which was originally serious and somewhat depressing, suddenly become a lot more relaxed. There were even a few faint bursts of laughter coming from behind. ??However, it is actually reasonable to ask this question. In any case, spending 40-50 million yuan to design a new aircraft, even if it is an improved version of an existing model, does sound a bit exaggerated. Of course its RMB, and thats a relatively loose estimate. I think the design of this model is almost complete, so as a deeply improved model, is there any subsystem that requires the technology developed by our brother factory? ??The person who spoke this time was the director of the Institute of Composite Materials and Special Structures. Apparently, he has already begun to consider the issue of prototype manufacturing. And this issue was considered earlier by Lu Yuying or Chang Haonan. Currently, there are only three places involving the application of new technologies. One is the need to use a C-type sandwich structure composite radome to reduce weight. The second is the need to develop small radars corresponding to 520mm and 600mm calibers based on the 1471G radar. The third I hope to replace it with a newer model of integrated cockpit display. Neither is a difficult technology to conquer. In other words, it can actually rely on existing technology. ?Lu Yuyings words seemed to turn on a switch, and the originally silent experts and leaders below started discussing almost at the same time. Obviously, some people already think this risk is worth taking. The overall design is nearly completed, and there is not much technical risk. As for cost With nearly 10 factories, it is not difficult to raise 40 to 50 million yuan. A few minutes passed, and the discussion in the audience not only did not end, but became more and more intense. The next ten minutes seemed as long as more than ten hours to Lu Yuying on the stage. In the end, the factory leaders who participated in this meeting reached a consensus. Agree to continue to promote the research on the J-7F project in the form of self-raised funds! After the meeting, Lin Yichun, the secretary of the 611 Institute, approached Lu Yuying who wanted to go outside to find two bananas to fill her stomach because she had not had time to have lunch. "Lao Lu, the completion level of your J-7F project was still very low when we held a meeting last month. But the plan you came up with this time, let alone the rapid improvement in completion level, although it is still the same as before. The mandibular air inlet, but I also have a technical background, and I can see that the design ideas are completely different, not to mention the digital design that you have not had much contact with before. " Speaking of this, Lin Yichun looked up and down at Lu Yuying in front of him: You just mentioned that you cooperated with Beijing Airlines in terms of design. Is it possible that you got some treasure from there? Regarding Chang Haonan''s matter, Lu Yuying had no intention of keeping it secret, but the time on the stage was already tight, so it was impossible to spend too much time introducing the specific situation of Beijing Airlines. Baby...this description is correct. ?Lu Yuying threw the banana peel in her hand into the trash can: He is a student of Academician Du Yishan. The integrated design method of the mandibular air inlet and the cone front body, as well as the program for supersonic fluid dynamics simulation, are all from his handwriting. "one person?" ? Lin Yichun showed an expression that Lu Yuying expected - he himself should have had the same disbelief on his face when he first communicated with Chang Haonan. I know this sounds very unbelievable, but it is indeed the case. This student named Chang Haonan has solved the problem that has troubled us for nearly a year alone. ??Lu Yuying sighed and replied: "To be honest, when I first met him, I felt a sense of frustration." "Well, it seems that he is indeed a genius..." Lin Yichun reluctantly digested this somewhat shocking news: "But how did you get in touch with him? Academician Du Yishan... should be closer to 601 and 603, right? " He submitted a paper on Aviation Progress, and I happened to review it. Lu Yuying raised his head slightly and recalled: We already knew each other when we received the J-7 surveying and mapping data. ?Some things are just such a coincidence. ??If Chang Haonan had not submitted to the Journal of Aeronautics and Astronautics, and if he had not happened to become a reviewer, it would have been three or four months at the earliest before he saw the article officially published in the journal. Lin Yichun gently touched his chin and fell into deep thought. After a long time, he raised his head and asked: Speaking of which, Academician Du should have been relegated to the second line for a few years. He shouldnt have any overall design in progress, right? ?Lu Yuying nodded in confusion: "There should only be some vertical topics related to subsystems." So the genius you are talking about currently does not have a broad enough stage for him to show his abilities, right? ?At this time, Lu Yuying understood the meaning of his own strengths no matter what. This is trying to rob someone. You mean, we can... Since your J-7F project is carried out with our own funds, we need to be much more flexible in terms of personnel arrangements and use of funds. Many things only need to be notified once and do not require approval from the head office. ?Lin Yichun obviously has some plans: "So we can consider giving Academician Du''s research team a big project, one worth 500,000 or even 800,000, and then let them deeply participate in the J-7F project. As long as there is such a relationship, when they graduate later, It wont be difficult to get him to our office. ??Lu Yuying really wants to say that you have a dirty mind when it comes to administration. But he couldn''t say it. Its not because Lin Yichun is his leader. Mainly He himself liked this method very much. (End of this chapter) Chapter 51 [Please read it! 】83 Project (Part 1) Chapter 51 [Please read it later! 83 Project (Part 1) On the other side, after agreeing to Du Yishan''s request, Zhou Yonghang of the 603 Research Institute also moved very quickly. It took less than ten days to develop "flutter simulation and active control of large aspect ratio straight wings" as an advanced technology The technical achievements were declared. Chang Haonan''s name is impressively ranked first among the completers. There is no need to say much about this publicity effect. So after returning to the capital from Institute 601, Du Yishan almost immediately found Liang Zhuoping, the chairman of China Aviation Industry Corporation. Mr. Du? Liang Zhuoping was stunned for a moment when he saw Du Yishan at the door, and quickly stood up to greet him: I was just looking at the advanced technological achievements submitted by Institute 603. It can be said that you have made an unparalleled contribution to our Chinese aviation industry this time. Hey, dont flatter me. Du Yishan waved his hand towards Liang Zhuoping and sat on the sofa next to him: You should have seen the list of completers. As the project manager, I added my name at the end. ?This achievement was all made by students. As an old man of my age, there is no need to compete with young people for the limelight. " ??Who is Liang Zhuoping? After hearing Du Yishan''s answer, he continued without changing: You cant say that, Mr. Du, werent you the ones who trained the talents who completed the project? This is also your credit. While speaking, he took the thermos and tea can from the side and made a cup of tea for Du Yishan who had just sat down. ?After several rounds of conversations just now, Liang Zhuoping has roughly guessed the purpose of Du Yishan''s trip, which is probably related to the other party''s students. This made him feel relieved. With the changes of the times, many factories that used to provide support for the aviation industry have been transformed into private enterprises. But these businesses are still run by the same people as before. In order to get orders from the aviation industry, these companies are trying their best to get orders from the aviation industry. People often come to Liang Zhuoping and ask him if he can designate a certain company as a supplier. Given his status, most of them can''t create much pressure. But if Du Yishan also does this, it will indeed be a bit troublesome. The student with the first name, Chang Haonan, has just joined our research group, so if you insist on saying that I have trained the talents, then I am a bit embarrassed. ?Du Yishan decided not to continue going around in circles with Liang Zhuoping: Zhuoping, how long do you think it took him to finish the subject in Institute 603? "Since Mr. Du asked this, the answer must be very short." ?Liang Zhuoping sat back in his office chair, leaned on the back of the chair and thought for a moment: One month? Its too long. Du Yishan smiled and shook his head. One month is still long? Liang Zhuoping raised his eyebrows and couldnt help but sit up straight. He was also an engineer in the past, but later moved to a management position, so he has some understanding of these technical issues even if he is not proficient in them. According to the materials submitted by 603, the implementation of this achievement in aircraft design is not complicated, but the principle is very sophisticated and involves a large number of basic mathematical theories and computer simulation applications. The workload of the development process must be considerable. So one month is actually an estimate that he thinks is very exaggerated. "Then... half a month?" ??? Du Yishan still shook his head. It cant be a week? ?Liang Zhuoping was already a little overwhelmed. Even he thought this answer was ridiculous. A week, even if you don''t sleep, it''s only 168 hours. Unless the entire development process makes no detours, you can''t even think about it. One day. Du Yishan stretched out a finger: On the first day he joined our research group, he sorted out the theory of nonlinear flutter simulation and active flutter control. ??If this answer came from someone else, Liang Zhuoping''s first reaction would probably be to drive the other person out directly. ?Only a charlatan would dare to speak such nonsense. But this is Du Yishan after all. ?The reason in his mind told Liang Zhuoping that this matter could never be true, but his emotions also told him that as a senior academician, Du Yishan would not be free to come and have fun with him. ?After a few minutes of his brain running rapidly, Liang Zhuoping finally found an answer that was acceptable both rationally and emotionally: Could it be that...he had actually studied this for a long time, but he just gave this result to you as a gift on the first day he joined the team? As a result, Du Yishan directly vetoed: Impossible, Yun 7-200A, oh, it should be called Xinzhou 60 now. Although it is not a confidential project, he was just a junior undergraduate student who was still taking classes before joining the team, and it is impossible to have access to relevant data. Third year undergraduate? With a clang, the lid of the cup in Liang Zhuoping''s hand fell directly onto the table. ?Although the cup held in the other hand did not fall, a lot of water spilled out, soaking the shirt on his body. Since he accepted Chang Haonan as his student, everyone Du Yishan saw almost behaved the same way when they heard the other person''s identity. So he was already used to Liang Zhuoping''s performance. "Yes, this is the first project he has come into contact with. No one has even told him how to complete a project before. In this case, he solved it completely on his own in one day." ?Du Yishan put the tea cup in his hand on the table and looked at Liang Zhuoping, who didn''t even think of wiping off the water stains on his shirt: So I came here today just to tell you about this student. Seeing that the fire was almost done, Du Yishan put forward his idea straightforwardly: "Such a student, both in terms of theoretical knowledge and talent in engineering applications, is something I have never seen before. If he is allowed to take graduate courses step by step like others and then do ordinary topics, I feel that not only will he be able to Its a loss for him, and its also a loss for our Chinese aviation industry. Having said this, how could Liang Zhuoping not know what Du Yishan meant. Do you want to put him on our side and directly participate in the project? Du Yishan nodded: "There is another thing you may not know. A few days ago, Lu Yuying from the 611 Institute went to Beijing Hang University to talk to Chang Haonan and exchanged some issues about the design of the mandibular air inlet. It should be with them Related to the new J-7 model that is being designed. J-7F? Is the 611 project also related to him? Liang Zhuoping only learned about such a project two days ago. However, because the factory raised funds by itself, the head office only had the right to know, so the information submitted was relatively simple and did not mention all the technical details. At this time, the balance in his heart has clearly tilted: Then... what Mr. Du means is to ask Comrade Xiao Chang to help the 611 Research Institute develop this improved J-7 model? Of course not. The J-7F was self-funded by Chengdu. If I wanted him to participate in that project, I wouldnt have come to you. As he spoke, Du Yishan stood up and walked slowly to Liang Zhuoping''s desk. He looked at his former subordinate and now the head of China Aviation Industry: I want him to participate in the 83rd Project! (End of this chapter) Chapter 52 Project 83 (Part 2) Chapter 52 The Eighth-Third Project (Part 2) The 83rd Project? After hearing the name of this project, Liang Zhuopings expression changed slightly and his tone became slightly hesitant: "this" You also know the importance of the August 3rd Project. Im afraid this matter cannot be decided by myself. I didnt ask you to have a talk. ?Du Yishan smiled instead after hearing Liang Zhuoping''s answer. ??If the other party takes over all aspects of this kind of thing, that is what you need to worry about. "You should communicate with Institute 601 about this matter. If necessary, you can conduct an expert review of the results submitted by Institute 603. Just follow the procedures. I''m not trying to put a burden on you. Go in, Xiao Changs ability is clearly reflected in the results, theres no need to be sneaky. "Um" ?Liang Zhuoping held his chin and thought for a while, and finally nodded: "Mr. Du, I can handle this matter, but there are two points that must be determined in advance." Tell me. Du Yishan nodded. He knew that when things got to this point, there was basically no problem. With the successful experience of MA60 as a foundation, no matter what the review is, it will definitely pass easily. "First of all, in recent years, in principle, we have no longer engaged in forced shift operations, so the 601 Institute can only hand over the project to your research team first, and then you can select the members of the research team to participate in the project as Party B. If he wants to become our official employee, he will have to wait until he graduates." The so-called compulsory transfer means that if the country believes that a certain type of talent is urgently needed for a certain position, it can directly transfer the job without the consent of the person and the original unit, and the transfer will be done together with the establishment. ?However, on the one hand, it is very inhumane to do so. On the other hand, in addition to the talents who are really in urgent need, there are also many people who are passing the job or even have ulterior motives to enter positions with better pay or more critical positions through forced transfer. Hence, by the 1980s, this situation rarely happened anymore. "Of course that''s no problem. Besides, even if you want to ask Xiao Chang to go there, I''m not willing to give it to you." Du Yishan sneered: "As for after he graduates... I don''t think you may be able to invite him." ??Although Chang Haonan''s current ability is already amazing, Du Yishan is very sure that this is by no means the opponent''s limit. Once he has the opportunity to show off his skills on a big stage like the August 3rd Project, Chang Haonan will take off faster than anyone can imagine. ?Liang Zhuoping nodded. According to Du Yishan''s previous description, he certainly knew that the other party was a genius, but in his position, the rules were the rules. "The second point is a clich. All projects related to the August 3rd Project are deeply classified projects. The relevant results cannot be published publicly, and all participants cannot go abroad or work in foreign companies before the end of the confidentiality period. "You know, this kind of restriction can have an impact on a student, so everyone involved in the project needs to agree to it and sign a document." Haha, you dont have to worry about this at all. Du Yishan smiled and waved his hand: "Xiao Chang has told me many times that he believes that the contribution of Chinese aviation people is not reflected in the paper. The article he sent to the Journal of Aeronautics and Astronautics is completely fine even if it is submitted to the progress of aerospace science in the United States. , including before joining my research group, I also gave him the opportunity to study abroad at public expense. What do you think he answered me? "What?" Liang Zhuoping raised his eyebrows and asked curiously. He said he didnt think the gap between us and foreign countries was so big that we had to go abroad to learn something that we couldnt learn at home. "Okay! That''s a good answer!" After hearing this, Liang Zhuoping slammed the table with excitement and stood up: "Mr. Du, after hearing what you said, I am already looking forward to meeting Comrade Xiao Chang. One side. After finishing speaking, he realized that he had lost his composure and quickly sat back on the chair: However, according to what I just said, Institute 601 will hand over the subject to your research group. In this case, there should not be only one person who can participate in the project, so this matter may not only involve Xiao Chang. "no problem." ?Du Yishan immediately agreed. If you want to participate in key national defense projects, the confidentiality policy is naturally an iron law that must be followed. And he already had a plan in mind. ?After Liu Hongbo and several other teachers went out independently, the size of Du Yishan''s research group was not very large, and there were only two people studying for Ph.D.s. Among them, Fang Zhen will graduate next year, and it may be difficult for him to keep up with Chang Haonan in terms of ability. So if nothing else happens, the second candidate can only be Yao Mengna. In fact, when he first met Chang Haonan through the design description, Du Yishan always felt that his and Yao Mengna''s talent levels were about the same. ? But it didnt take long for the former to easily solve the MA-60s wing flutter problem, proving that it was in another dimension entirely. But no matter what, Yao Mengna is definitely not a height that ordinary people can reach casually. ??And after all, she has more project experience and can help Chang Haonan on issues other than technology. ?After confirming these basic matters, Liang Zhuoping picked up the receiver of the phone on his desk and dialed a number. Hello, Commission of Science, Technology and Industry for National Defense, Im looking for Director Zhou Lin. Hello, Director Zhou, I am Liang Zhuoping. I have a somewhat immature idea regarding the advanced technological achievements reported in this years 603 program. Yes, this result is definitely world-leading, so I think we can consider allowing relevant personnel from Beijing Hang University to go one step further and participate in some key national defense projects? "Well... I have already talked with Academician Du. There is no problem with their willingness and ability. As for the specific project... the 83rd Project should be more suitable." "The specific arrangements still need to go through the process. What I mean is to arrange a small-scale review meeting as soon as possible, let the 601 Institute send people to participate, see what technologies in related fields need to be solved urgently, and then submit them in the form of projects. To Academician Dus research group. Dont worry about confidentiality issues, Academician Du is also an experienced aviation expert, and we will provide relevant training to all personnel directly involved in the project to ensure that there are no mistakes. After hanging up the phone, Liang Zhuoping breathed a sigh of relief. ??The attitude of the Commission of Science, Technology and Industry for National Defense seems to be much more positive than he imagined. ?He raised his head and looked at Du Yishan opposite the desk: Mr. Du, you may have to work overtime with me in the next few days. Thank you to the book friend [Ye Luo Nian Whale Luo Jiu Xiao] for the 2000 starting coin reward Thanks to book friend [Wuhan Qing] for the 100 starting coin reward (End of this chapter) Chapter 53 Overtaking on a straight road [Please read more! 】 Chapter 53: Overtaking on the Straight [Please read it later! At the same time, over there at Beijing Hang University. Since it is already the summer vacation, the master''s students in the research group have returned home one after another. Only Fang Zhen, Yao Mengna and Chang Haonan are still in school. Fang Zhen is preparing to complete the project report on wing flutter analysis in one go. Yao Mengna plans to stay in school and continue to learn computational fluid dynamics simulation. As for Chang Haonan Actually, it was because he predicted that Du Yishan would find a project for him to join, so he waited at school. So in the past few days, he has continued to study the effect of blade shape on the separation of boundary layer airflow inside the cascade under different conditions. ?If there is any actual gain, it is a letter from the editorial board of Acta Aeronautica Sinica, stating that his paper has been directly accepted and will be officially published in September. He and Wu Yifan paid him the remaining balance of 3,200 yuan. ?It means that the previous fan design should have successfully defeated Fuji Electrics competing products. ?Of course, the impact of this incident was limited after all. It only increased Chang Haonan''s scientific research points by 4 points. Fortunately, whether it was the design of the fan or the wing flutter analysis project for the 603, he relied entirely on himself and did not ask the system to help. So now he has a total of 80 scientific research points in his hand. Even if he faces some more complex problems, it should be enough to solve them if he has an idea. ?But the leisurely fishing life did not last long. ?One morning four days later, Du Yishan suddenly called and asked the members of the research team who were still at the school to prepare for an expert review meeting that afternoon. ?Fang Zhen and Yao Mengna were both confused when they heard the news. After all, they were completely unprepared, and they had never seen such an urgent academic conference. Chang Haonan, who had been mentally prepared, had roughly guessed the true situation of this so-called "review meeting". It is estimated that a project is coming to your door. ??And this posture doesnt look like an ordinary project. Even though he had been mentally prepared in advance, when Chang Haonan saw the situation inside at the door of the conference room, he subconsciously took a deep breath and his eyes widened in shock. ?The room is not large, with only two tables. There are not many people inside, only four including Du Yishan. But he happened to know two of the other three people. They are Liang Zhuoping, chairman of China Aviation Industry Corporation, and Yang Fenghao, deputy director of the 601 Institute and chief designer of the J-8-3. Since the 83 Project was established much earlier than the 941 Project, which clarified the chief engineer''s responsibility system, the chief designer is equivalent to the person in charge of this model. The last one is a woman. Although I have never seen her before, but since she can sit and chat and laugh with the previous ones, she must be of high status. Such a configuration, even if there are only four people, is enough to be called a big scene! At least Chang Haonan had never seen such a battle before his rebirth. The first person invited in was Fang Zhen. ?But he only stayed in there for less than fifteen minutes before he came out. Chang Haonan''s mentality was relatively stable, but Yao Mengna next to him quickly stepped forward: "What did we talk about? The content of the project?" "Well... not exactly." Fang Zhen''s expression was still a bit confused: "In addition to questions related to our group project, I also asked a lot about the textbooks I studied before. Fortunately, I still remember most of it, and there are some things related to computational fluid dynamics, which I am not familiar with, but you two should be good at it. " After a brief chat, Yao Mengna was called in for the second time. She stayed in there longer, probably more than 20 minutes. When Yao Mengna was asked about the situation inside, she obviously hesitated for a moment. Its almost the same as what Senior Brother Fang said just now, but in the end the white-haired expert named Yang asked me if the flutter simulation project we did for the 603 can be used on combat aircraft. ??Yang Fenghao''s name was not very famous in this era, so it was normal for Yao Mengna not to know what the other person did. What did you say? "My junior brother told me this before. When we studied high-aspect-ratio straight wings, we regarded the research object as a beam wing and then used the dipole grid method. Generally, combat aircraft are delta wings or rear wings. Sweeping wings cannot be applied mechanically. " As she spoke, Yao Mengna cast a grateful glance at Chang Haonan. By now, anyone could tell that this gesture was unusual. It was said that it was a review meeting, but it was actually more like an interview, so answering one more question must be beneficial. Finally it was Chang Haonan''s turn to go in. Actually, putting him as an undergraduate at the end actually explains something. ?After Chang Haonan sat down behind the table near the door, although the movements of the four people opposite him did not change much, he could clearly feel that there were some subtle changes in the atmosphere of the scene. After a brief opening session, the exchange between the two parties quickly got to the point. The previous questions were all raised by Liang Zhuoping, and they are no different from Yao Mengna and Fang Zhen. But when Chang Haonan said that he was recently studying the topic of using blade sweep design to control the vortex structure within the turbine machinery cascade, the eyes of the other two people next to him almost lit up at the same time. ?Especially the woman who Chang Haonan didn''t recognize at first almost immediately raised her own questions. According to the introduction at the beginning, she is the director of the System Engineering Department III of the Commission of Science, Technology and Industry for National Defense, with a surname of Zhou. You also have research on compressor design? "Yes." Chang Haonan nodded: "Although there are indeed some differences between the overall design of the aircraft and the aerodynamic design, the theoretical principles of fluid mechanics and the engineering methods of computational simulation are universal." Actually, its not just compressor design, but I think the same applies to related materials and manufacturing processes. As the saying goes, nothing can change without departing from its roots. If we can master the basic theories and methodologies, we can conduct cross-border research in a broader scope. Totally possible." "Take compressor blade manufacturing as an example. One of the major difficulties is that during CNC milling processing, irrecoverable deformation will occur due to clamping force, cutting force, internal stress and other reasons, which will affect product quality. This problem is generally considered to be only Rely on processing experience and material upgrades to solve it. But in fact, it is completely possible to use the mathematical functional relationship between flow stress and deformation parameters such as strain, strain rate, and temperature to establish a constitutive model of the material, so as to numerically calculate the deformation of the blade during the processing, thereby achieving Higher processing accuracy and more stable product quality. Another example is the turbine blades of aero-engines. Due to their long-term operation under strong thermal shock and complex cyclic thermal stress conditions, they have higher requirements than compressor blades and need to be manufactured by investment casting. However, through traditional The experience + trial and error method of optimizing process parameters is very inefficient. As a late-developing country with insufficient experience and funds, it is very difficult for us to rely on this method to surpass others. " But the investment casting process can essentially be summarized as two processes: mold filling and solidification. The former is a flow process we are familiar with, while the latter is a heat transfer and phase change process, plus the process similar to the milling process. After comprehensive consideration of stress and strain issues, the entire process can still be numerically calculated, thereby achieving precise calculation and control of the casting process and greatly improving efficiency. When Chang Haonan said this, the eyes of the four people opposite him, including Du Yishan, had changed. ?This juniors ambition far exceeds everyones imagination: It is good both in design and manufacturing. ?Overpass the experience accumulation and trial and error part that consumes the most time and money, and directly explain everything using mathematics and physics. This way, the gap with developed countries can be narrowed in all aspects with limited resources. Even the corners Wrong. Overtaking on a straight road! (End of this chapter) Chapter 54 The organization has decided Chapter 54 The organization has decided ??If Chang Haonan just expressed this idea, it would only be considered a "dare to think" at best. But judging from what he just said about the manufacturing of compressor blades and turbine blades, he is definitely not talking nonsense. At least it can be proven that he has conducted quite in-depth research on these fields that seem to have nothing to do with aerodynamics. Being able to achieve this step can actually be said to be standing at the top of the pyramid. ? And what he just said, "As long as you master the basic theory and methodology, you can conduct broader cross-border research" gave the four senior experts opposite a sense of enlightenment. And Director Zhou of the Commission of Science, Technology and Industry for National Defense instantly felt that he had found a treasure. As the department in charge of the scientific research and production of aviation and shipbuilding military products, and the department that plans, coordinates and connects national defense scientific research, production and construction, the Third Department of Systems Engineering is in great need of such an all-round talent who can guide in the general direction. She even had the urge to ask Jinghang University to directly assign him to the Commission of Science, Technology and Industry for National Defense after he graduated. ?But her reason told her that now was not the time. No matter how beautiful the words are, in the field of engineering technology, it is impossible to convince the public by relying on paper talk. If nothing can be made, everything is in vain. So the young genius in front of me still needs to go through the experience of specific model projects. ?Thinking of this, Director Zhou looked at Yang Fenghata next to him. As the model chief engineer, the latters considerations are obviously more specific and practical. ??Although he also saw Chang Haonan''s talent, he continued to ask his own questions. Comrade Xiao Chang, in the idea you just mentioned, it should rely heavily on numerical calculation methods, but for some problems such as complex flow fields, have you considered the amount of calculations required in the numerical simulation process? ?This question may sound a bit awkward, but it is actually very practical. It is now June 1996. Half a year later, in December 1996, Intel will build ASCIRed, the highest-performing supercomputer at the time, with a calculation speed of 1.338 trillion times per second. As for China, the fastest supercomputer in 1996 was the Dawn 1000A, with a calculation speed of only 4 billion times per second. For comparison, before Chang Haonan was reborn, the A15 processor on the iPhone 14 had a calculation speed of 15.8 trillion times per second. One mobile phone is equivalent to 12 of the worlds best supercomputers. So the amount of calculation is indeed an issue that must be considered. But this obviously could not faze Chang Haonan, who had been prepared for this. Of course I have considered it. ?Chang Haonan stood up directly this time, walked to a blackboard on the side wall, and picked up a piece of chalk. Since you mentioned the problem of numerical simulation of complex flow fields, lets take the oscillatory motion of a delta wing under a dynamic flow field with a large angle of attack as an example. ?Yang Fenghata raised his eyebrows and subconsciously sat up straight. ?Chang Haonan did not choose this issue randomly as an example. This is a very valuable question for the ongoing J8-3 project. And the man opposite Yang Fenghata himself is very proficient in aerodynamic analysis at large angles of attack. So he must be very interested in it. Of course, the identity of the chief designer of the J-8-3 has not been publicly publicized at this time. In the opening stage, he was only introduced as an expert from the 601 Institute. Therefore, Chang Haonan ostensibly chose it just because of the other party''s question. That''s just the problem. "If the CFD method is used to directly calculate the dynamic flow field at large angles of attack, the computing resources and computing cycles required will be very large. Therefore, a simpler model that can directly predict the important characteristics of the system is needed instead, that is, the model reduces the Order...???So I designed a signal-based reduced-order model, the Volterra series model, with reference to the nonlinear identification and modeling process of electronic circuits. The basic principle is: for the time domain discrete Volterra Series, the output y(n) of any input u(n) can be expressed in the following way..." Chang Haonan said and wrote a long multiple convolution on the blackboard. "It can be seen that if all the Volterra cores of the system are obtained, then the response to any input of the system can be obtained. Considering that the length of the series and the model memory length increase rapidly with the increase of the core order, it is not conducive to Volterra To identify the Volterra core, we truncate the part above the second order, and then perform wavelet compression on the remaining Volterra core..." After he erased the blackboard and filled it up again for the sixth time, he finally finished explaining the reduced-order method that could greatly simplify the calculation process. ?Liang Zhuoping and Director Zhou, who had been out of technical positions for a long time, looked more confused. But the eyes of Du Yishan and Yang Fenghao were almost full of... fanaticism. The flow field calculation of a delta-wing aircraft is inherently much more complex than that of a straight wing. ? Let alone numerical calculations, even analysis is quite difficult. So it mainly depends on experience. ??And if you want to gain experience, you have to spend money on a lot of wind tunnel testing and test flights. It will take a lot of time. ??If the reduced-order model that Chang Haonan just wrote on the blackboard can work, it will undoubtedly save a lot of trial and error and bumps into obstacles. This is simply tailor-made for the J-8-3. And it is a completely new engineering model. Even, this time it can be said to be engineering theory. Because this idea of ??reducing the order of the model is not limited to Volterra series, it can be extended to more fields. Of course, this still needs to be verified. ?However, with the previous project of 603, everyone is still optimistic about the verification results. In other words, within one month, Chang Haonan produced groundbreaking results twice. This undoubtedly shows that what he mentioned before about mastering basic theories and methodologies is not groundless. Its just that some theories may need to be put forward by himself. ?Yang Fenghata had an idea at this time: I will decide this person! He turned his head and consulted the other three people with his eyes. All received a positive answer. Comrade Xiao Chang, there is now a key national defense project assigned to Academician Dus research group. Are you interested in participating in this project? ??Although judging from Du Yishan''s description and the recent contact with Chang Haonan, Yang Fenghao is basically 100% sure that the latter will agree, but the process will eventually go ahead. Before you make a decision, we need to explain that if you choose to participate in this project, there will be certain restrictions on subsequent work, going abroad, and publication of results... Chang Haonan naturally knows these contents very well. After all, his actual working time in China Aviation Industry is not shorter than that of Yang Fenghao. So after the other party finished speaking, he agreed almost without thinking, and then signed an informed document. So, Xiao Chang. After Chang Haonan signed his name, Du Yishan left his seat and walked up to him: The organization has decided that you and Xiao Yao will jointly represent our research group to participate in the research and development of the 83rd Project! (End of this chapter) Chapter 55 Please also ask Gaoming [for further reading! 】 Chapter 55 Please give me some advice [Please follow up! For this result, Chang Haonan had basically expected it when he first saw Yang Fenghao. This has far exceeded his expectations a month ago. Compared to the MA-60 project, the difficulty and importance of the 83 project are undoubtedly much higher. Correspondingly, the influence and weight are much greater. This also means that he is one step closer to the goal he set at the beginning of his rebirthto rely on the system to drive the efficiency of the entire Chinese scientific research system. ??As for Yao Mengna, it is reasonable to follow her. She has strong abilities in three-dimensional digital modeling and control law design. She is the most in-demand talent in the entire aviation industry at the moment. After all, in the original timeline, Chinas first aircraft model that fully realized digital design, drawings and assembly was the JH-7A, and the project would not be officially approved until 1999, three years later. ?Liang Zhuoping took out a document from the briefcase next to him. Comrade Xiao Chang, this is an information document about the confidentiality of the project. If you have no objections after reading it, just sign on the last page. Chang Haonan took a brief look at it and found that it was not much different from the one he signed when he joined the company after graduating from his doctorate in his previous life, that is, not to say anything that should not be said, not to ask about secrets that should not be asked, and not to involve secrets in private letters. No need to use ordinary postal mail to convey secrets, etc. It''s just that in 1996, only a few cities in the country, such as Beijing, Shanghai, and Yangcheng, were connected to the Internet. There were even fewer people with the conditions to access the Internet, so the network security issue that became a top priority had not yet been solved. be included in it. In addition, there are restrictions on the publication of some results. If there is confidential content, it needs to be declassified. If the confidentiality is too deep to be declassified, it can be written into a national defense report. ??These are all normal contents. Chang Haonan turned to the last page, decisively signed his name, and then handed the signed document back to Liang Zhuoping. So, Comrade Chang Haonan, lets get to know each other again. I am the chief designer of the 83rd Project. On behalf of the entire project team, I welcome you to join me. Yang Fenghao was obviously in a good mood. He stood up and shook hands with Chang Haonan: "At this stage, the testing work of Project 83 is going quite smoothly. There are two main parts that need your help. One is to digitize our previous paper design drawings to facilitate subsequent improvements and finalize the design. After that, we will, of course, provide manpower to work with you in connection with the manufacturing unit. "The second is to use your knowledge in computational fluid dynamics to provide more accurate guidance for the next test flight work and speed up the test flight efficiency. We now have a large number of flight hours spent exploring test flight conditions. In fact, It has caused a certain amount of waste. As for the more specific project details, you have to wait until you arrive in Shengjing to find out. Thank you, Commander Yang, for your trust. I will do my best. ?Although it was the first time for Chang Haonan to experience such a scene, he had been mentally prepared for it, so he still remained unfazed. At this time, Du Yishan came forward again, patted his shoulder and encouraged: Xiao Chang, you have a great future. Work hard at Institute 601. Project 83 is a very promising project and there is plenty of room for you to show off your skills. Hearing such a sentence, Chang Haonan felt mixed emotions in his heart and could only smile and nod in return. In fact, in 1996, as Yang Fenghao said just now, the research and development progress of Project 83 was relatively optimistic. The 01 and 03 prototypes had already launched intensive test flights in Yanliang, and the 04 that had just rolled off the assembly line was verified. The aircraft is also undergoing factory test flights, and everything seems to be going very smoothly. Therefore, in Du Yishan''s view, as long as this project proceeds step by step, there will be no major troubles. Even if the WP14 engine that is the most worrying is not progressing smoothly, it can be temporarily replaced by the WP13F engine. Similar situations have not happened in the past. Didn''t happen. But as a reborn person, Chang Haonan certainly knew that in the original timeline, Project 83 ended with regrets and was turned into a technical reserve. The supporting WP14 engine also lost its installed model. Although the research and development was not directly terminated, the attention it received plummeted and it failed to complete its mission of replacing the WP13 series. The reasons for this are of course very complex, including both the impact of insufficient technology and non-technical factors. For example, in January 1997, when the No. 04 full-state prototype just mentioned was transferred to Yanliang, the end of the landing runway was being renovated, so a trench was dug. The tower did not know about this, and the pilot was Visibility was poor and the aircraft could not be detected visually, which eventually led to the aircraft''s landing gear breaking. After overshooting the runway, it hit a tree and was completely damaged. The prototype No. 05 that was then rushed to be produced caught fire and crashed in the air due to an engine failure in 1999. Two prototypes were lost within two years. This, coupled with the slow progress of test flights caused by the damage of No. 04, eventually led to the discontinuation of Project 83. . Of course, this all happened in the last life. This time, Chang Haonan is confident that these regrets will never happen again. Comrade Xiao Chang, Professor Du is right. This time it was Director Zhou who spoke: The August 3rd Project should be just the beginning for you. We look forward to you playing a greater role in the progress of our Chinese defense industry. ?That afternoon, Lu Yuying, who was sitting at her desk in Chengdu 611 School, picked up the receiver in high spirits and dialed the number in the office of Professor Du Yishan of Beijing Hang University. Just yesterday, after discussions with 9 units including the 611 Institute, Northwest Optical Instrument Factory, and Liyang Engine Company, they were unanimously optimistic about the export prospects of the two J-7F models. At the same time, they can also share the Project 10 project to a certain extent. risk, so we decided to jointly raise 65 million yuan to support the research and development of new models. ?This is a full 30% more than the 50 million he said at the previous meeting. ?In this era when funding for national defense scientific research is not abundant, having money means having confidence. ?So after discussing with secretary Lin Yichun, the two finally decided to allocate 1 million yuan to provide Du Yishan''s research team with a project on the overall design of a mandibular inlet aircraft. In fact, the meaning is obviously to ask the other party to send Chang Haonan over. Hello, who is this? ??The call was quickly connected, and Du Yishan''s voice came over there. Lao Du, its me, Lu Yuying, the chief model engineer of the 611 Institute. At this time, there were only a few model chief engineers in China, so the two of them naturally knew each other. After a few simple greetings, Lu Yuying went directly to the topic. He said that the 611 Institute currently has a self-funded project. If he wants to give the other party''s research group an overall design topic, he needs to ask Chang Haonan to come to the 611 Institute to participate in the project. The total funding is 1 million yuan. ??When Lu Yuying finished saying the number 1 million yuan, he leaned directly on his office chair, thinking about Du Yishan''s reaction after hearing this number. Uh, Lao Lu, Im really sorry, we cant take on this project now, youd better hire someone else. (End of this chapter) Chapter 56 Head to Shengjing! Chapter 56 Heading to Shengjing! Lu Yuying was confused. ??He just imagined a lot of Du Yishan''s reactions after hearing about the project funding, but this one was not included. "Lao Du, this... this is a big project with a funding of 1 million yuan. Are you sure you just want to give it up so casually?" ?For a moment, he even felt that he had just said the wrong amount. "It''s not that I don''t want it anymore, but you asked Chang Haonan to participate. This is really impossible. Our research team has also taken on another project, and he will go to Shengjing soon." Du Yishan said in a troubled tone said: Otherwise, there is still a doctor in our team, and he and I will go to your place to help? No, no need Lu Yuying was filled with bitterness when she heard this sentence, and she didnt even know how she said goodbye to Du Yishan and hung up the phone. In short, he only had six words in his mind. Obviously it was me first ??Although Lin Yichun, who had been sitting next to him, was the first person to propose ways to bring Chang Haonan over, he was more open-minded than Lu Yuying at this time. After watching the latter hang up the phone, he stood up and patted the other party on the shoulder: "It doesn''t matter. If we don''t have a chance this time, there will be a next time. Besides, as long as your thinking doesn''t slip, there are always more solutions than difficulties. Even if he is at Institute 601, if we encounter any problems, we can still go to him for consultation. , China Aviation Industry is a family after all. "Sigh..." Lu Yuying still felt a little pity: "If I can get his assistance, I am even confident that the prototype will be launched in about half a year." "this" ?Lin Yichun hesitated for a moment, and then said something that was not sure whether it was comforting or not: Actually, you dont have to feel too sorry. After all, even if we really bring Chang Haonan here, originally...we originally planned for him to mainly go to Project No. 10 to help. ??? Lu Yuying suddenly felt that the world was full of malice towards him. The other side. ??Yang Fenghao rushed back to Shengjing after the meeting, while Chang Haonan and Yao Mengna still had to stay at the school to go through some procedures, so they needed to stay at Beijing Hang University for one more day. On the morning of the third day, Du Yishan drove the two people to Nanyuan Airport in Beijing. Although the airport in the 1990s already had a security check process, the whole process was relatively sloppy, so it didnt take long for the two of them to take their luggage and walk into the cabin of a Tu154M passenger plane under the guidance of the staff. In this year and age, apart from the more urgent business trips like theirs, you have to be quite wealthy to be able to afford a plane ride. In addition, the route from Beijing to Shengjing is not a popular route, so until the plane started taxiing, None of the cabins were full. ?After a short taxiing, the Tu-154M flew into the sky at an angle that was very characteristic of a fighting nation. ?Yao Mengna, who was sitting next to Chang Haonan, was a little restless, and her breathing was much larger than usual. She didn''t know whether it was because of excitement or nervousness. Junior brother, have you ever flown on a plane before? ?Perhaps to divert her attention, Yao Mengna turned to Chang Haonan next to her and asked. HmmIve never sat in this kind of car before. Chang Haonan gave a somewhat ambiguous answer. Before his rebirth, flying was of course a very common thing for him, but riding the Tu-154M was indeed a quite novel experience. Although I have studied aircraft design for 7 years, this is my first time to fly. Yao Mengna moved closer to the porthole and looked at the buildings and roads below that were getting smaller as the plane climbed: How long will it take us to get from Beijing to Shengjing? About an hour and a half The routes Chang Haonan has taken the most are from Beijing to Shengjing and from Beijing to Rongcheng. The flight speed of airplanes in twenty years will not be much faster than now, so he answered almost without thinking. . By this time, the plane had climbed to the cruising altitude. Due to the clouds, Yao Mengna could no longer see the situation on the ground. I thought we were going to take a train yesterday, so I searched for it and found that the train takes almost 10 hours to get to Shengjing. Teacher Du and Mr. Yang are not worried. Chang Haonan shook his head: There are so many people on the train and at the train station, and any accident may happen. After all, planes are safer and faster. Trains in the 1990s were simply synonymous with chaos. If you had to take one, you had to make complete preparations in advance, such as sewing money on the inside of your underwear, or bringing a quilt with you and sewing a bunch of small pockets inside the quilt. , and then put valuables in it, etc. In short, it can easily be eaten up and wiped clean by others if you are not careful. ?Given the importance of Chang Haonan and Yao Mengna, it is naturally impossible to let them take this risk. "Yes...faster." Yao Mengna stared ahead blankly and repeated in a somewhat sad tone. After a long time, she looked at Chang Haonan next to her again: "I don''t know when we in China will be able to build something like this." This is how a passenger plane comes. Tu 154M is a 160-180-seat mainline passenger aircraft. Shortly before Chang Haonans rebirth, in 2023, Chinas first self-produced mainline passenger aircraft of the same class, the C919, was officially put into commercial operation. Of course, in 1980, the Y-10, which seemed to be in the same class as the Boeing 707, made its first flight. But just building a plane that can fly into the sky is not enough. In the aviation field, the design and manufacturing difficulty of civil aviation aircraft is actually higher than that of military aircraft. Since passenger aircraft, especially mainline airliners, may spend half of their time in the sky every day, they need to have higher reliability, longer airframe life, higher structural strength, better fuel economy, and more flight hours per flight hour. Low average maintenance hours In short, large civil aviation aircraft are indeed the master of aviation industry technology. Even if Chang Haonan has the experience and knowledge of future generations and has systematic help, there is really no way to give an accurate timetable. Just because a person can be full by eating five loaves of bread does not mean that he can only eat the fifth loaf of bread. Take it step by step. ?Chang Haonan looked at Yao Mengna next to him: Isnt this the goal we should strive for together? Yao Mengna finally showed a smile: Thats right. ?After the plane landed at Shengjing Taoxian Airport, a 212 jeep with a white license plate took the two directly to No. 601 House. ?Yang Fenghao, who came back early, came to the door to greet him personally. We have already arranged the accommodation for the two comrades. It is a single dormitory with a shared bathroom on the first floor and no kitchen. At noon, you should first familiarize yourself with the location of the canteen, dormitory area and office area. You can take a rest in the afternoon. There happens to be a project progress seminar within our office tomorrow evening. If you are interested, you can go and attend. Listening to Yang Fenghao''s introduction along the way, Chang Haonan only had one thought in his mind: J8-3, here I come! (End of this chapter) Chapter 57 Change of thinking Chapter 57 Change of thinking Since both Chang Haonan and Yao Mengna were in the best physical condition in their early twenties, and the flight only took about an hour and a half in total, they did not feel tired from the journey. While on the road just now, the two of them had already agreed that they should start familiarizing themselves with the work as soon as possible after arriving at the 601 Institute. ?Of course, it was Yao Mengnas idea to become familiar with her work. For Chang Haonan, this kind of work of being a screw for a large project is simply not familiar, so what he wanted to do was to demonstrate the value of their research group as quickly as possible. Mr. Yang, we rested almost all the way here on the plane, so our idea is that its best to start working this afternoon. Yao Mengna decisively rejected Yang Fenghaos suggestion to let them rest for a day. Wellmy plan is to let you know the specific project situation through tomorrows seminar. There is a big difference between doing projects in school and doing projects here. You may not have any idea about the overall design of aircraft before. After Yang Fenghao finished speaking, he touched his chin and thought for a moment: Well, since you are so motivated, I will take you to the computer room after lunch to get to know the other members of the digital design team. The computer room of Institute 601 is in a relatively remote building. There are four big words "Computing Center" hanging on the outer wall of the building. This is a title that will not be outdated even after more than 20 years. ?According to Yang Fenghaos introduction, this was originally prepared specifically for digital design, which shows that the institute still attaches great importance to it, but so far, the progress of the digital design team is not very optimistic. The two of them followed Yang Fenghata and walked in. As the chief designer of the Eighth San Project, Yang Fenghata''s appearance naturally caused a commotion. A few minutes later, an engineer of medium height, who looked to be in his 30s and wearing glasses, jogged all the way to the three of them. before. "Mr. Yang, why... why are you here suddenly?" "Let''s go to forestry, don''t be nervous. I''m not here to check your progress this time." Yang Fenghao said, taking a step to the side, stepping aside half of his body and introducing to Chang Haonan and Yao Mengna: This is the leader of our digital design team at Institute 601, Engineer Lin Shikuan. ?At this time, Lin Shikuan noticed that there were two people following Yang Fenghao. These two are experts in digital design and computational fluid dynamics that I invited from Beijing Hang University this time, Dr. Yao Mengna and Dr. Chang Haonan. Chang Haonan is still an undergraduate at the moment, but his decision to study directly for a Ph.D. is basically confirmed, so its not a big problem. You dont want to be considered experts, just call us by our names. Chinas digitalization of aircraft design is still in its infancy. We are all students, lets communicate and learn from each other. ?Yao Mengna said this very well. ? Judging from Lin Shikuans performance when he met Yang Fenghao just now, due to the fact that the progress has not met expectations for a long time, the morale of the entire digital design team may have some problems, and there may even be some fear of difficulties. Especially in front of the model chief, he was completely unable to hold his head up. Yao Mengna''s answer took everyone''s feelings into consideration and did not further stimulate Lin Shikuan''s already sensitive and fragile psychology. After three people shook hands, they were considered to know each other. Thank you, Mr. Yang, for still thinking about our digital team. I am very honored to have two experts from Beijing Airlines to help. ?Lin Shikuan was indeed much more relaxed than when they first met. Then forest workers, please familiarize them with the general situation of the project first. If you have any questions or need, please contact me. ?The Eighth-Three Project is currently in the research stage. Yang Fenghao can be said to have many things to do every day. Naturally, it is impossible to stay here forever, so after arranging two people, he turned around and left the computing center. Dr. Yao, Dr. Chang, please come with me. In the next more than two hours, Lin Shikuan first took the two of them to visit the computer room equipment, and then began to introduce their work during this period. In fact, this digital design group was established in early 1995, less than two years ago. In other words, when their group was established, the 01 demonstrator aircraft of the J-8-3 had already made their first flight. ?Hence, Lin Shikuan and his teams tasks in the first phase had little to do with design. They mainly focused on converting past paper design drawings into more intuitive geometric modeling, which was a lot of work. ?However, this task, which seemed very simple at first, they have not completed for nearly a year and a half, let alone using digital technology to improve the aircraft later. ?So Lin Shikuans meaning is also very simple. He hopes to at least help them find out which step made the mistake. Chang Haonan happened to know the answer to this matter, because in the original timeline, after he graduated, he happened to catch up with the stage when the entire Chinese aviation industry was fully transforming from traditional design methods to digital design. These problems Lin Shikuan encountered , he also encountered it. Simply put, digital design is far more than just replacing a drawing board with a computer, but a complete set of design ideas. ?But just when he was organizing his words and preparing to speak, Yao Mengna next to him got ahead of him. Actually, this problem... I know how to solve it. ?Chang Haonan subconsciously turned his head to look at the other party. When I was a PhD student, I tried to digitally design some simple aircraft, and I encountered the same problem as you. "this" Several engineers, including Lin Shikuan, looked at each other with half surprise and half doubt in their eyes. After all, the problem that had troubled them for a year and a half and made the digital design team unable to raise their heads in front of the aunt in the 601 canteen, others immediately said they could solve it after hearing it. It is indeed a bit exaggerated. In fact, not to mention Lin Shikuan and others, even Chang Haonan felt a little surprised. He did not expect that Yao Mengna would have experience in this area. Our countrys aircraft shape design has always followed the Soviet path. After the aerodynamic configuration design, the entire aircraft shape is mathematically modeled, and the theoretical shape is expressed entirely using mathematical formulas, that is, in a non-parametric way. ?Yao Mengna walked to the blackboard next to her in three steps and two steps at a time, picked up the chalk and wrote a few formulas on it. European and American aircraft appearance design focuses on geometric representation and uses parametric polynomials to express the overall aircraft shape curve, She drew another section of Bezier curve, and then wrote the quadratic formula of Bezier curve. Originally, these two methods actually have their own advantages and disadvantages. If the designers mathematical skills are good enough, the mathematical formula method will be more accurate in describing the shape of the aircraft. "But the design software you are using now is CATIA bought from France. If you apply Soviet design habits to European design software, the final result will naturally be very awkward, and more importantly, there is no way to modify it through parameter adjustment. It completely fails to reflect the advantages of digital design. So you have to change your thinking habits and restore the aircraft design through surface curve theory. Only in this way can you get better results, which will be helpful for subsequent design improvements and even assembly and manufacturing processes. After saying this, Yao Mengna threw the remaining half of chalk into the chalk box very gracefully, and then turned back. What came into view were several people with almost identical expressions. ?(|||) (End of this chapter) Chapter 58 Project progress Chapter 58 Project Progress Lin Shikuan and others also graduated from prestigious schools, and their abilities are naturally quite good. Therefore, after Yao Mengna pointed out their problems, they almost immediately understood what they should do next, and then immediately started working on a new round of work. . By the way, please give me a copy of your previous aerodynamic modeling. ?Chang Haonan looked at the few people who were back at the workstation and were about to start working and said quickly, fearing that they would delete the previous design files if they were slower. Before? But didnt you just say that ?Lin Shikuan turned back to look at Chang Haonan in confusion. It is really troublesome to modify the design, but I am going to do a fluid dynamics analysis on the original design, so as long as the accuracy of your model is high enough, it will be fine. After hearing Chang Haonan''s explanation, Lin Shikuan showed a relieved smile on his face. ?That was Party Bs expression when he found out that the scrapped project he had done before could still be used as waste. Thats definitely no problem, we can still guarantee this. Also, Team Leader Lin, do you have any modeling of the aerodynamic shape of the A-bomb? ??The Aspid air-to-air missile introduced by China from Italy is generally referred to as the A bomb internally. It is currently one of the only two missiles of the Chinese Air Force that can attack beyond visual range. "Well... we are not doing the surveying and imitation work of the A bomb, so the three-dimensional modeling has not been done yet." Lin Shikuan thought for a moment and then said: "But there are two-dimensional parts that were retained when converting the paper drawings to digital. Design drawing. Thats okay, anyway, the aerodynamic modeling of the A bomb is very simple, I did it myself. A few minutes later, Chang Haonan sat in front of a computer by the window with two floppy disks in his hand. The digital design team did not receive much attention due to the delay in producing results. The entire team, including Lin Shikuan himself, only had five people, so there were many empty seats in the computer room. ?Yao Mengna also took the opportunity to sit in another seat closest to him. Are you ready to start aerodynamic analysis of the whole machine? "The whole aircraft is not in a hurry. That will take a while. I''ll do the wing part first." Chang Haonan said that he had already opened CATIA and started to process the model before analysis. As he worked quickly with his hands, the three missile pylons that had been modeled before were gradually "installed" under the left wing. ?The aerodynamic shapes of most aircraft are close to left-right symmetry, and the performance of computers these days is really bad, so you can take half of the model for analysis and leave the other side alone. I think...you should use the A bomb as an example to demonstrate to them. ?Yao Mengna looked at Chang Haonan''s movements and couldn''t help but recall the first time the two met. The other party was also using CATIA to model a MiG-21. But she didnt know why, but she never saw Chang Haonan show that kind of inhuman operating speed again. Hmm thats okay too. As soon as he finished speaking, several people from the digital design team quickly moved chairs and sat around Chang Haonan. Even Yao Mengna, who made the suggestion in the first place, barely reacted. ?In fact, someone just noticed Chang Haonan''s extraordinary work efficiency, but they were worried that the latter was not an employee of the 601 Institute. It would be impolite to come over to watch, and it seemed to be stealing from his teacher. ?Now that I have the consent of the rightful owner, there is no need to worry. "Before we parameterize discrete data, we must first consider the fitting problem of discrete data. The fitting problem can be divided into two methods: interpolation and approximation..." Because Aspad is an air-to-air missile designed by Italians, its surface is originally expressed in the form of parametric polynomials. The modeling process is not complicated, so Chang Haonan focused on how to use parametric polynomials to construct curves or surfaces. In fact, some excellent data parameterization methods are themselves secrets kept secret by major European and American aircraft manufacturers. Chang Haonan can only introduce some principles and techniques based on his own understanding and the experience of later generations. "Since the expression of surface patches in software generally adopts the form of four-sided patches, the expression of triangular surface surfaces will cause the edges to degenerate into points. This form of triangular surface patches is a fatal problem in digital appearance design. Trap, which leads to a situation where the normal vector is zero near the degenerate point." This is generally not a problem in the appearance design stage. The crisis breaks out in the structural design stage because of the emergence of zero normal vectors. Structural parts cannot be operated or even configured, causing the entire related design process to be completely overturned. ??When Chang Haonan talked about how to deal with the large number of triangular surfaces in aircraft design, he heard a loud gasping sound like surround sound coming from behind him. ??The feeling is probably similar to when a programmer faces a mountain of code that he wrote ten years ago without line breaks or comments, but must debug it. Obviously, the mistake just mentioned hit the target directly. Im afraid thats how they dealt with this problem. Therefore, after he said that the solution was to "spread the vertices of the triangle into two points, and deform the triangular surface into a quadrangular surface within the allowable tolerance range," four of the six people immediately returned to their seats. The modifications began, leaving only Lin Shikuan and one other person to stay in place. In fact, when Chang Haonan later participated in the appearance design of the JH-7A, he was fooled by the same mistake, and it took several months to completely rework it. Thats why he still remembers it. Fortunately, Lin Shikuan and his team''s previous progress was not fast, and the amount of tasks that needed to be changed was acceptable. By the way, Dr. Chang, you suddenly want to model the A-bomb, isnt it just to give us a few lectures? ?Seeing that Chang Haonan''s modeling work was finished and the aerodynamic models of the two missiles were hung on the hangers under the wings, Lin Shikuan scratched his head and asked. Of course not. In fact, I am planning to use the CFD/CSD coupling method to analyze the aileron control performance, wing load distribution and structural elastic deformation of the aircraft when it is loaded with bombs. With ammunition? Lin Shikuan was stunned for a moment: But Project 83 has not yet started test flights with bombs. Digital design and aerodynamic simulation are originally intended to guide the design and test flight work, and of course they must be completed before the test flight. ?Yao Mengna, who had been silent just now, put one hand on her forehead with a helpless expression on her face. "this" ? Lin Shikuan certainly understands this truth, but the reality is that their digital design team has been catching up with the progress of the project since its establishment, and over time, it has almost formed a thinking inertia. "Not only that, according to my previous research on the aerodynamic characteristics of delta wings, when this aircraft flies with bombs at supersonic speeds, the aerodynamic control surface, especially the aileron control efficiency, will be drastically reduced due to the interference of the airflow on the wing, so I Now we need to use simulation to verify it and see how it can be improved. "ah?" ?Lin Shikuan''s expression was almost dumbfounded. (ѡ) (End of this chapter) Chapter 59 There is room for improvement on this wing Chapter 59 This wing still has room for improvement Previously, their digital design team could not even catch up with the progress of the project and fell further and further behind. But today, in just one afternoon, Chang Haonan has already directly started to look for the design problems of the 83rd Project and considered ways to improve it? ?This feeling is as if the student with the lowest grades in the class suddenly came first and had to give lectures to the top students in the class. Its almost like a dream. In fact, the reason why Chang Haonan was so confident was naturally because he knew that this problem existed in the August 3rd Project, and also knew that when he later designed the J-8F, some small changes were made to the wings to adapt to the size and A heavier air-to-ground weapon. It''s just that this time, he was no longer satisfied with just repeating the improvements made by later generations. Judging from the situation in the late 1990s, the J-8 actually has considerable potential. The People''s Air Force also needs an aircraft type to complete high-altitude tactical reconnaissance and interception missions. Of course, in the original timeline, the level of China''s aviation industry was still relatively low at this time. Later, when it developed enough to continue to tap the potential of the J-8F, it was already around 2010, which was indeed a bit late. But there is still a chance for Chang Haonan, who returns to 1996! Um...is there anything we can do to help? ?Lin Shikuan asked weakly from the side. ??If what Chang Haonan said is true, then this is an excellent opportunity for the entire digital design team to make a comeback. ?Even if it turns out that the other party''s worries are unfounded, there will be no problem. There is nothing to lose anyway. When this group was first established at the beginning of last year, because it did not require frequent trips to the workshop and climbing up and down to draw drawings by hand, it became a hot topic for a period of time. As the group leader, Lin Shikuan could even get one from every meeting. Front row seats. ??But as time went by, their status, which had never been able to produce convincing results, also declined day by day, and Lin Shikuan himself was embarrassed to sit in the front. ?Until recently, he always found a corner to hide in a meeting, for fear of being called on by the leader in front of him. Just like a graduate student whose progress is not optimistic during group meetings. Help Chang Haonan originally didnt expect what he needed, but after two clicks of the mouse, he discovered that the systems pointer style had changed from a familiar pointer to a small funnel that was constantly rotating. Before Windows 7, this cursor indicated that the system was busy and the user should wait. Do you have any better computers here, such as workstations or servers? There are two SUN workstations, but we usually only use them when performing complex calculations. Lin Shikuan replied. SUN...is for UNIX system? In the second half of the 1990s, with the continuous development of Windows NT and Linux systems, Unix has shown signs of gradual decline, but after all, it has advantages in security and stability, so it still has a fairly high stock. Of course, simulation software such as Fluent and Nastran can also be run in a Unix environment. Even for a long time, full-featured Fluent could only run on Unix. But Chang Haonan is not skilled in this. Its Unix, we have a manual, but its still very troublesome to use. No, please take me there. Chang Haonan pulled out the floppy disk from the computer. ? ? "Can you still use Unix?" ? ? Yao Mengna''s eyes sparkled with curiosity. I have studied some open source Linux systems, so there should be no problem in operation. "If I hadn''t seen your student ID card before, I couldn''t believe you were only in your twenties." Yao Mengna shook her head and sighed: "Sometimes I wonder if you have 48 hours a day, otherwise how could you learn So many things? It mainly depends on reasonable arrangement of time, and of course maybe a little bit of luck. ?While Chang Haonan was talking, he quietly spent 5 points in the system to start a new project. Carry out aerodynamic derivative and flight load analysis on the J-8 aircraft with bombs in the Unix environment, and study the influence of parameters such as aerodynamic type, flight dynamic pressure and angle of attack on the steering surface control efficiency In an instant, a large amount of knowledge about the Unix environment poured into Chang Haonan''s mind. Fortunately, he already knew the content related to aerodynamic simulation, so he did not find it too difficult to bear. At this time, Lin Shikuan, who was leading the way, suddenly asked in a slightly curious tone: "I know Linux, but what does open source mean?" Chang Haonan only realized after hearing this question that the concept of open source was only officially born in 1998. "Uh...it means free. After all, Unix requires a fee and is very expensive. It is impossible for computers in ordinary places to install this kind of system." Chang Haonan was not a programmer in his previous life. He didn''t know much about the details of these definitions, so he agreed casually. past. Fortunately, at this time, the three people also came to the room with the workstation next door. Lin Shikuan seemed to want to ask something else, but in the end he did not ask. He just walked forward and turned on the power of the workstation with unskilled movements. . As an operating system based on the command line, no one had developed beautiful graphical interfaces for Unix and Linux in the 1990s. Therefore, after turning on the workstation, Chang Haonan saw a monotonous command line interface. ?However, with the help of the system, although Chang Haonan actually saw Unix for the first time, he was able to use it with ease. Although this is not the first time I have experienced this feeling... Its amazing. ?Although Lin Shikuan and his colleagues have been working in the wrong direction for the past year and a half, they are definitely not scratching the surface. They modeled the structure of the J-8-3 aircraft wing very carefully, saving Chang Haonan a lot of effort. The native version of fluent in the Unix environment has a GAMBIT pre-processing software specifically used for meshing, which allows it to skip the extremely long and boring meshing process to a certain extent and determine the mesh around the wing. The calculation starts directly after the flow field model. ?Yao Mengna looked at Chang Haonan who was operating the workstation, and felt as if she had returned to the afternoon when the two met for the first time. Lin Gong, when we came here in the morning, Mr. Yang said that our institute will have a project progress seminar tomorrow night. Is this something that all teams of the 83rd Project must participate in? After a while, Chang Haonan looked at the program that was being calculated in front of him, and turned back to Lin Shikuan, who had been watching behind him, and asked. Yes, this is the largest meeting of the entire project team once a month. When this matter was mentioned, Lin Shikuan''s expression quickly fell: "Not only do each group have to send people to participate, but they also have to report on their work progress." Obviously, for him in the past, this kind of time was basically equivalent to a public execution. "Well... that''s good." Chang Haonan stood up from the chair and stretched his muscles: "Then when it comes to the meeting, can I speak on behalf of the digital design team?" (End of this chapter) Chapter 60 Amazing words (two in one) Chapter 60: Shocking words (two in one) "Of course there is no problem with that, but I have to know what you are going to say first, so that I can be prepared so that if any problems arise, I won''t be unable to step down." ?Lin Shikuan agreed to Chang Haonan''s request without much thought. Mainly because he was about to have a psychological shadow on speaking. After all, others are reporting on **** progress in their work. Even if there is nothing worth saying, everything is going well. Such a comparison makes their group very useless. Its nothing, its just that I have basically determined that the existing wing design needs to be modified to a certain extent. As for the specific data, I am still calculating it. If nothing else, I will probably get it by this time tomorrow. ?This news was so exciting that Lin Shikuan almost couldn''t breathe. ??He did think that Chang Haonan could help them fight a turnaround, but he never expected that it would turn around so quickly... "Dr. Chang, modifying the wing design is not a trivial matter. Are you...are you sure you can come up with a feasible modification plan in just one day?" "No, no, no, I misunderstood. Of course, it is impossible to know how to modify the wing in one day." Chang Haonan waved his hand and explained: "But it is enough for me to confirm that there is a problem with the wing and it must be modified." Cough cough cough ?Lin Shikuan, who had just managed to catch his breath, held it back again. ?This time Chang Haonan did not continue to make shocking remarks, but quietly waited for him to recover. "But what you just said is half right. If you use traditional design methods, then modifying the wing is indeed a matter that affects the whole body. But if digital design can be realized, then such a magnitude of modification will not delay Too much progress. But the Eighty-three Project has not yet achieved full digital design. Lin Shikuan said, rubbing his chest that had just stung due to a violent cough. So Lin Gong, you have to speed up the progress and let other teams of the 83rd Project see that the digital design team is not only not a burden, but can also help them greatly improve their efficiency. Chang Haonan''s words made Lin Shikuan''s eyes suddenly brighten. Youre right, Dr. Chang, youre right The latter turned around and strode out of the room, returning to the computer room where everyone was just now. Work overtime tonight! ?The day passed quickly. After dinner the next day, Lin Shikuan took Chang Haonan and Yao Mengna to a large conference room. After all, every group involved in the 83rd Project in the 601 Institute must participate in the progress seminar. Some groups with more complex work even have to send several people over. As soon as the three people entered the door, Yang Fenghao, who was sitting at the head of the long conference table, noticed this. Xiao Chang, Xiao Yao, how do you two feel about being in the digital design team? Has Lin Gong helped you get familiar with the work? ? Lin Shikuan almost rolled his eyes when he heard this question - he didn''t feel that these two people needed him to work with them. In the past day or so, he had been led by the other party to make a lot of progress. It is no exaggeration to say that this day and a half has done more work than they have done in the past year and a half. After all, after working overtime last night, everyone in the team was convinced that they were finally heading in the right direction. We have been working on it for more than a day and feel pretty good. The forest workers are very efficient. We just didnt find the right direction before. Chang Haonan took advantage of the opportunity to help Lin Shikuan and others explain, and then received a grateful look from the latter. ??He had already thought about using the system to improve the power of the entire Chinese scientific research system when he was reborn. But this can only be done step by step. ? Chang Haonan, who was a military screwdriver in his previous life, had no decent management experience at all. Although he had taken charge of several projects, they did not require any complicated division of labor and collaboration, so that the system evaluated his management ability at level 0 and 0 experience. ?This digital design group with a simple structure, generally young members, and no pretensions or baggage is just right for a novice like Chang Haonan to hone his management and organizational skills. Thats why he found ways to boost the self-confidence of Lin Shikuan and others. In fact, since yesterday afternoon, the system has shown that Chang Haonan''s management ability experience has been slowly increasing, and it has reached 15 o''clock just after receiving Lin Shikuan''s gratitude. ?While the three of them were talking to Yang Fenghata, other participating project members also entered the conference room one after another. After everyone sat down according to previous habits, the seminar officially started soon. Since Chang Haonan had never been exposed to J-8-related projects before, and the August 3rd Project was indeed legendary to this generation of military workers, he listened to the whole process with great interest. In general, the test flights of the three prototypes went smoothly, but some groups also mentioned some problems. ?For example, the WP14 engine is still immature and may induce surge under certain circumstances, especially at high speeds. However, the probability of this problem occurring is very low, so the specific reasons still require further investigation. ? It is still WP14. The engine life, especially the life of the turbine blades as hot-end components, is not ideal and there is still room for improvement. ? In addition, as a typical second-generation high-altitude and high-speed interceptor aircraft, there are problems with the stall angle of attack in a specific speed range and the available overload at large angles of attack. It needs to be limited by the flight control software to avoid entering a stall or spin state. ??Also, the fire control equipment group stated that the imitation progress of the Aspad-made PL11 air-to-air missile matched with the 1471G radar is so slow that they simply do not have enough ammunition for over-the-horizon attack testing. ?Finally, there is a somewhat peculiar problem. When the J-8-3 uses the innermost pylon of the wing to launch PL8 air-to-air missiles, there is a certain probability of causing the engine to stop. The reason for this matter is not complicated. The smoke and dust generated when the propellant of the PL8 missile is burned is very heavy, and the interference with the air inlet when the inner pylon is launched may lead to insufficient air intake or turbulent air flow. ??Its just that this is the same problem as the slow progress of the previous PL11 missile, which needs to be solved by the missile research and development unit. As for the problem of the WP14 engine, it is also not something that the 601 can handle. However, even considering the worst possibility, the J-8-3 can temporarily use the WP13F engine with a slightly smaller thrust, so that it will not be completely unable to reach the sky. Hence, after listening to the previous report, both Yang Fenghao, who presided over the meeting, and the team responsible for these tasks felt relatively comfortable. Then finally, let the digital design team talk about their progress. ?Yang Fenghata looked at Lin Shikuan, who was sitting in the back corner of the conference room. Since the digital design team cannot guide the aircraft design, they have almost become outsiders of the 83rd Project and have been placed at the end of the report for a long time. ?But this time, it was not Lin Shikuan who stood up, but Chang Haonan, who was holding a report in his hand. To most of the people in the room, this was a new face. And usually, when the digital design team gives a report, it means that the workshop will end soon and everyone will relax. Many people have already begun to chat quietly among themselves. The information design team has completed an aerodynamic simulation of the J-8-3 aircraft in the past period of time. "According to our calculation results, when the aircraft carries two Aspad air-to-air missiles on the two outermost pylons at the same time, the aileron efficiency will drop sharply under large angles of attack, large aileron deflection angles and large dynamic pressures. There is even aileron reaction. The venue, which had been noisy just now, fell silent for an instant. As soon as these words came out, not to mention the other people present, even Yang Fenghao, who was already aware of Chang Haonan''s ability, first thought that there was an error in the simulation. After all, these two people only arrived at No. 601 at noon the day before yesterday, and it was less than 60 hours until now. In fact, Yang Fenghao originally planned to introduce them to the project members after the seminar ended today. ??This is the first time Chang Haonan himself has faced such a scene. Now almost everyone''s eyes are focused on him, with suspicion, confusion and even confusion in their eyes. But at such times, it is more important to show confidence and decisiveness. So he only paused for about two seconds and then continued: "Based on engineering experience, we can qualitatively know that the changing trend of aileron efficiency and roll rate with dynamic pressure is closely related to the aileron deflection angle and flight angle of attack, but the traditional linear aerodynamic analysis method cannot simulate such results. Therefore, aerodynamic analysis at high speeds and high angles of attack can only be based on experience, supplemented by a large amount of wind tunnel and test flight data. "But during the analysis process, we introduced external nonlinear aerodynamic forces and considered the elastic deformation of the wing structure, and successfully simulated the effects of angle of attack, wing load and aileron deflection on the aerodynamic efficiency of the wing. The final result The result is that once the aileron deflection exceeds 10 for an aircraft with 4 rounds of A bombs at a speed of Mach 1.4 and an angle of attack of 12, aileron reaction will occur. ?Chang Haonan''s explanation made Yang Fenghao loosen his mind. He knows very well that nonlinear aerodynamic and structural analysis are the areas in which the other party is best at. Even when he agreed to invite Chang Haonan over, it was because of his outstanding abilities in these aspects. 603 The problem of wing flutter of the Y7-modified passenger aircraft also took one day to solve. ?After a brief hesitation for a few seconds, Yang Fenghao coughed twice, drawing everyone''s attention to himself. Let me introduce, this is Dr. Chang Haonan, who I invited from the research group of Academician Du Yishan of Beijing Hang University to assist in the work. His specialty is the use of numerical methods for aerodynamic simulation and structural simulation. ??The venue that had been silent just now gradually became filled with whispers. ?Most people dont know what happened over there at No. 603 University, but the names of Beijing Hang University and Du Yishan are still somewhat convincing. At least it should be much more reliable than 601 Institutes own digital design team. Therefore, after Yang Fenghao pointed out Chang Haonan''s outsider status, everyone''s attitude towards him changed from complete disbelief to hesitation. Theoretically speaking, Chang Haonans explanation just now is indeed tenable. Aileron refers to a small movable wing surface installed on the outside of the trailing edge of the wing tip. Its main function is to generate rolling torque through differential deflection to make the aircraft perform roll maneuvers. It is one of the most important control surfaces of the aircraft. . And if the rolling moment generated by the aileron and the moment generated by the elastic deformation caused by the aerodynamic force on the wing cancel each other out, the aileron will not be able to continue to control the roll of the aircraft. When the flight speed continues to increase and exceeds the reaction speed, the rolling moment generated by the aileron will be less than the reverse moment generated by the wing deformation under the action of aerodynamic force. That is, when the pilot wants to control the aircraft to roll to the right, the aircraft will roll to the left due to the reverse torque. This is a very critical problem for formation flying and air combat. The simplest solution is naturally to limit the rudder operation of the aircraft in the flight control software - since the aileron angle will be counterproductive if it exceeds 10, then I write a command to prevent the aircraft from deflecting to more than 10 in the corresponding speed range. is enough. In fact, many aircraft did this. Even earlier aircraft would simply lock the aileron deflection angle through the mechanical structure to avoid danger from the source. ??However, the problem is that although this method ensures flight safety, it also limits the maneuverability, making the aircraft almost become an iron rod that can only make small movements at high speeds. ??If what Chang Haonan said is true, it means that the maneuverability of an aircraft with bombs will be severely limited at 1.4 times the speed of sound. For an interceptor aircraft, this is obviously not good news. Dr. Chang Haonan, I would like to ask, which method did you use to calculate the impact of wing elastic deformation on efficiency? As far as I know, there does not seem to be a reliable empirical algorithm to deal with this problem? On the other side of the conference room, a balding middle-aged engineer wearing a half-sleeved shirt raised his hand and asked. You are right, there is indeed no reliable formula to deal with it, but this is exactly the area that the CSD/CFD coupling method is good at solving, First, we calculate the aerodynamic performance of the wing under selected flight conditions based on the original aerodynamic model. At this time, we still treat the wing as a rigid model for analytical calculations. Then, the obtained aerodynamic load on the fluid node on the wing surface is interpolated to the structural model node through the equivalent node method, and the structural deformation of the wing under this load is calculated. "The third step is to obtain the new coordinates of the wing''s characteristic points based on the structural deformation for grid regeneration, establish a new aerodynamic model and then perform the next round of aerodynamic calculations. Repeat the above process until the convergence conditions are met, usually after 6-8 calculations. You can get convergence results. After the above three steps, the rigid lift and elastic lift of the wing under these two conditions can be obtained, thereby calculating the aileron efficiency under the selected flight conditions. Finally, by analyzing the lift coefficient and deformation of the wing under various calculation models and flight conditions, the relationship between them and aileron control can be obtained. If necessary, I also brought detailed calculation results. " Yang Fenghao''s expression became serious at this time. He waved to one of his assistants next to him, who then came to the back of the conference room, took a few pieces of paper from Chang Haonan''s hand, and then placed them one by one on the projector. under. ?Several line graphs were projected onto the screen. "this" The idea of ??the iterative method should be correct, but if the result is really like this, the project progress will probably..." I didnt expect that the digital design team could actually produce something. Regardless of whether the result is right or not, at least thats what it looks like... Obviously, although it is impossible to draw a conclusion based on what Chang Haonan said alone, everyone in the conference room has begun to take this calculation result seriously. (End of this chapter) Chapter 61 Then let’s take a test flight [Please read it! 】 Chapter 61 Lets take a test flight [Please follow up! ?At the front row of the conference table, Yang Fenghao and several other project team leaders gathered together to communicate quietly. ?Before the August 3rd Project, the J-8B had conducted flight tests with four PL8 short-range air-to-air missiles. Based on the results at that time, the adverse impact of the missile on the steering surface efficiency was within an acceptable range. ?However, Aspad is an over-the-horizon air-to-air missile with a large volume and weight. This is the first time for China Aviation Industry to come into contact with related design issues. As Chang Haonan said just now, aerodynamic analysis at high speed and high angle of attack is still based on experience. Since I have never seen it before, I cant say that I have any experience, let alone analyze it. ?Similar to the situation at the time of the MA60, problems involving the rudder surface were difficult to restore using the wind tunnel alone. ??And if the flight test is carried out directly in one step according to Chang Haonan''s calculation results, the risk is relatively high. The safest way is of course to conduct a large number of test flights, starting from relatively mild flight conditions, and gradually approaching the theoretical position where the aileron reaction occurs, so as to maximize safety. But in this case, the progress may be delayed by weeks or even months. So several people discussed it for a while, but could not come up with a solution that everyone thought was feasible. In the area behind the conference room, the discussion became even more lively. Even Chang Haonan had a lot of people gathered around him, looking at the report he brought over. In fact, what was just taken to the front and projected onto the screen through the projector was only the final conclusion he reached after highly condensing and summarizing it. In order to reach this final conclusion, he analyzed many problems in the past day and a half, some to verify the accuracy of the algorithm, and others to provide data for the calculation of aileron efficiency. These analyzes cannot be said to have any guiding significance for the already highly completed August 3rd Project, but for the designers around Chang Haonan, compared to the somewhat shocking conclusion just now, it is the content they are more familiar with that attracts them. More powerful. This part of the calculation is...the pressure difference between the upper and lower wings when the aileron deflects? ?An engineer with thick glasses and gray hair picked up a few pages of the report, looked over them several times, and then asked in a somewhat surprised tone. "That''s right, this is the upper and lower wing surfaces at the three positions of 15%, 65% and 95% of the wingspan when the ailerons are deflected up and down 3 and 5 respectively under the flight condition of Mach 0.6 speed and 10 angle of attack. Pressure difference distribution map." ?Chang Haonan raised his head and glanced at the content in the other person''s hand, showing a smile that seemed to have succeeded. ?What the opponent held in his hand happened to be a wing pressure difference cloud map he made to show off his skills. ??Originally, the computer output was just an ordinary line graph composed of discrete data points, but he spent about three hours plotting the data on the line graph on the cross-section of the wing. For people who are used to seeing scatter data, seeing this kind of three-dimensional cloud image for the first time is no less shocking than seeing a movie for the first time. "This data is quite similar to the results we obtained during previous test flights. Upward and downward deflection of the ailerons has the opposite effect. Downward deflection increases the lift and drag on the wing, while upward deflection reduces the lift and drag on the wing. " A middle-aged female engineer next to him leaned over and took a few glances and commented: And Dr. Changs expression is very intuitive, and it is especially easy to see the trend. Yes, this is also one of the advantages of our digital design and simulation. Chang Haonan nodded and replied: "We can clearly see that the difference in lift on both sides of the wings causes the aircraft to roll, and the difference in the resistance of the wings on both sides will cause the aircraft to deflect and cause sideslip. After sideslip, an aileron roll will be offset. The effect is torque, thereby reducing the aileron control efficiency. When the speed and angle of attack are relatively low, mainly in the subsonic range, this drag is the main reason for weakening the aileron efficiency, but in general the impact is very small, and it can be reduced through differential ailerons. alleviate this problem. Having said this, Chang Haonan took out another page from the report in his hand and handed it over, and then continued: Once it enters the supersonic range or flies at a high angle of attack, the moment generated by the elastic deformation of the wing will rapidly increase, becoming the main factor affecting the aileron efficiency, which is what I said before. "Looking at this table, after considering the wing elasticity, the aileron should have provided a clockwise rolling moment, but it is obvious from the calculation results that the bending moment of the left wing root is smaller than that of the right wing root. , which shows that the aircraft in this state generates a counterclockwise rolling moment around the roll axis, that is, aileron reaction occurs. " As Chang Haonan''s explanation continued to deepen, he could even feel that the attitudes of people around him towards the digital design team, and even towards digital design itself, were changing at a speed visible to the naked eye. The main reason is that the several simulation results that Chang Haonan produced in succession are consistent with the test flight results they obtained before, and the gap is not big. ?This is real persuasive power. ? Many people still had a dismissive or disdainful expression when they first came over, but after listening to his explanation carefully, their expressions or eyes changed dramatically. At this time, Yang Fenghao and others also ended the discussion and motioned everyone to return to their positions. Dr. Chang, now I really obey you. After the crowd around Chang Haonan gradually dispersed, Lin Shikuan, who had just been squeezed out, sat back down next to him with admiration on his face: "The gray-haired old man just now is named Xu Jin. He has always felt that our digital design team is a complete waste of project resources. Every time we have such a meeting, he will target us intentionally or unintentionally. As a result, he only asked one question this time. , and then didnt say a word. Old comrade, its understandable that you have concerns about new things, but as long as you can present strong enough facts, I believe anyone who pays attention to science can be convinced. Chang Haonan did not look up, but replied while sorting out the report that had just been disrupted. ?At this time, Yang Fenghata in front of the conference room also spoke again: "I think after the exchange and discussion just now, everyone should be able to see that the issues raised by Comrade Chang Haonan are worthy of our serious consideration, so our next focus is to verify the aileron reaction effect when bombs are loaded. When will it appear?" ??If Yang Fenghao had made such a decision twenty minutes ago, he might have encountered some objections, but after circulating the report just now, everyone has some trust in Chang Haonan''s simulation calculation results. Just like this, the finalization of the design of the 83rd Project will inevitably be delayed. However, just when everyone was worried about the progress of the project, Chang Haonan spoke again. I think the test flight verification work on the aileron anti-effect can be divided into two stages. If it goes well, it should not delay too much progress. (End of this chapter) Chapter 62 I want to go to heaven Chapter 62 I want to go to heaven With one sentence, everyone''s attention once again focused on Chang Haonan behind the conference room. Only this time, he could hardly feel the suspicion in everyone''s eyes. After clearing his throat, Chang Haonan revealed his specific plan: The risks we face now mainly come from the uncertainty of how far the results of computer simulations differ from reality, so it can be verified in two steps. The calculation of aileron efficiency is essentially a flow field analysis, so we first select a working condition that ensures safe test flight, such as 1.2 times the speed of sound and an elevation angle of 10, and then I calculate the flow rate of the wing surface in this case. flow field distribution and then conduct a test flight. If the results obtained from this test flight are consistent with the calculation results, it means that there is no problem with the accuracy of the calculation results. The next step can be more radical and conduct a test flight directly near the operating point where aileron reaction occurs. ?This idea was actually inspired by the previous 603 Institute, which also used a similar method to divide the active vibration control technology into two steps, speeding up the verification progress while controlling the risk within an acceptable range. ?Of course, it is acceptable, but after all, it is not as reliable as the most conservative successive approximation method, and Yang Fenghata, as the chief designer, still needs to bear a certain amount of pressure. As soon as Chang Haonan finished speaking, a young-looking engineer not far away asked: This method is indeed feasible in theory, but your first step is to verify the flow field on the upper surface of the wing under the loaded bomb state. How should you proceed? Since the sensor technology in the 1990s was not advanced enough, it was difficult to measure the flow field distribution on the entire wing surface in real time. In many cases, it was necessary to judge based on the subjective feelings of the test pilot. ?Wind tunnel models are okay, but the degree of restoration cannot be compared with test flights. Its just that this question doesnt even require Chang Haonan to answer. Engineer Zhao has just joined the work two years ago, so he may not know much about some things. Our 601 Institute has already had experience in solving such problems. ??This time it was the old engineer Xu Jin who opened his mouth to explain to Chang Haonan. In fact, he has no prejudice against digital design itself. After all, people who engage in aircraft design cannot really be antiques. He just thinks that Lin Shikuan and others just waste money and do nothing. So after he just saw the report brought by Chang Haonan, he was very curious about how far the other party could achieve it. When we were working on the J-8B before, Commissioner Gu relied on sticking wool on the fuselage to observe the airflow on the surface of the fuselage, and solved the buffet problem that had troubled us for a long time. Now we can use the same method again. The title academician only began to appear in October 1993. Before that, it had been called academic member. Therefore, it is normal for older people to be unable to change it for a while. Chang Haonan looked at Xu Jin who was not far away and looked forward to it, and continued to add with a smile: "Engineer Xu is right. You can choose a few representative points on the wing surface to stick wool on, and then find a two-seater aircraft to fly beside it. This way you can intuitively observe the airflow at the corresponding location. After the test flight is over, we will be able to draw a conclusion by comparing it with my calculation results. And of course Xu Jin is not the only one who agrees with this idea. Divided into two steps... This idea is somewhat similar to the advanced results reported by Haojing some time ago..." ?Seeing that someone in the conference room had already mentioned the matter of Institute 603, Yang Fenghao also took advantage of the situation and said: Actually, everyone here may not know that the main person who completed the result just declared by the 603 Institute is Dr. Chang Haonan. One stone stirs up a thousand waves. ?Although many people have heard about the MA-60 project, they still dont know some details because it has not yet reached the end of the year for internal publicity. Except for a few leaders such as Yang Fenghao, no one at the 601 Institute knew that the first person to complete the results of the 603 Institute came from Beijing Hang University. It turned out to be him Its really impressive to be the first finisher at such a young age... ?These front-line engineers, who are also engaged in confidential work, may not pay too much attention to who published what paper. ??But the advanced achievements evaluated by the Aviation Industry Corporation of China or the Commission of Science, Technology and Industry for National Defense are definitely something that everyone is keen on. Being able to put a name on it is something worth writing about for many people, but Chang Haonan looks like he is no more than twenty-five years old, but he is already the first person to complete it. ??Waiting for the discussion to calm down a little, Yang Fenghao tapped the table lightly with the pen in his hand: Considering that we already have the experience of the brother research institute, I think the method proposed by Comrade Chang Haonan should be feasible. Lets do it this way. As for the candidates to fly with the plane... Since I am responsible for the calculation, let me do this heavenly work as well. ?When he first proposed this plan, Chang Haonan had already thought about doing it himself: ?In addition to the sense of responsibility, another less important reason is that he really wants to experience the feeling of flying in a fighter jet. The conditions now are much better than those of Mr. Gus time. I can bring a camera up there and take pictures of the airflow pattern on the wing of the prototype. ?When Gu Yongfen was designing the J-8B, he brought a telescope for on-site observation. However, in 1996, cameras with optical zoom capabilities were already quite popular, and it was possible to take photos and keep them for later analysis after returning to the ground. ??Yang Fenghata briefly communicated with the two deputy chief designers next to him, then raised his head and said: "We agree in principle on this matter, but we have to ask the comrades from the Air Force test flight unit to do a physical examination on you and make sure you are fine before you can get on the plane." Chang Haonan naturally had no objection to this. During the Air Force''s physical examination for recruiting pilots, he only failed in one item: misaligned teeth. ?What was originally an ordinary and routine progress seminar became extremely enriched by the appearance of Chang Haonan and lasted for six hours. When all the details of the verification work were finalized, it was already close to midnight that day. "The situation regarding the wing efficiency test has been decided first. After the meeting, Dr. Chang and Dr. Yao, as well as the digital design team, will come up with the simulation results of the flow field as soon as possible. As for the aircraft problem, I will contact the comrades in the Air Force. , ask them to borrow a JJ-7." ?Yang Fenghata concluded in a hoarse voice: As for comrades from other groups, lets continue with the work at hand. If the aileron reversal problem is verified by then, we will discuss solutions. The meeting is dismissed! (End of this chapter) Chapter 63 stronger than them Chapter 63 Stronger than them After the seminar, Chang Haonan was not surprised to be surrounded by a group of people again. In addition to people who come to him to discuss fluid dynamics simulation issues, there are also some people who are very interested in the situation of MA-60. ?Even Yao Mengna and Lin Shikuan who were with him were asked a lot of questions. So it was not until about one o''clock in the morning that Chang Haonan and the three finally "escaped" from the conference room. ? Lin Shikuan, who had not encountered such a battle for a long time, moved his somewhat stiff body and took a deep breath of joy. Even though I am following Chang Haonan, I still feel like I am surrounded and asked questions. Cool! ?But as soon as he thought about it, he felt a little worried again. Dr. Chang, can the flow field simulation analysis you just mentioned at the meeting really match the test flight results? Over the past year or so, Lin Shikuan and his engineers have actually been working very hard to learn from the advanced experience of their foreign counterparts. Even though information technology is not developed and there are technical barriers in the field of engineering simulation, they are still Read a lot of literature and technical manuals. You cant really blame them for not making any outstanding achievements. After all, China has no foundation in this area. So Lin Shikuan is very clear that even Americans who are at the forefront of the world in aerodynamic simulations cannot guarantee the accuracy of numerical calculation results. They can only say that there are no problems with the laws. However, Chang Haonan is ready to directly challenge the comparison between numerical calculation results and test flight data! "Is it completely consistent? Of course I dare not say, so we need to test the flight." Chang Haonan shook his head: "But if you can choose the right simulation method, it is not difficult to control the average difference to about 5%. " ?This data shocked Lin Shikuan so much that he even forgot to continue walking and stood still in place. In the field of engineering design, an error of 5% is an accuracy that is undreamed of. You cannot find two identical leaves on a tree, nor can you find two identical air currents on the earth. Even if the same aircraft is used for two consecutive test flights, there may be a few percent difference between the data obtained. "But...but...how was this done?" Lin Shikuan asked in an unbelievable tone: We have also communicated with the French and Americans, and even they cannot achieve this level. Could it be that they are hiding their secrets? This is not a technical detail, there is no need to hide it. Chang Haonan waved his hand: Besides, as long as you refer to their aircraft design cycle, you can roughly estimate that they really cannot achieve this level of accuracy. But, have you ever thought about Speaking of this, Chang Haonan suddenly stopped and turned around to face Lin Shikuan behind him: What they cant do, doesnt mean we cant do it too? Or is it that we are stronger than them? "this" ?Lin Shikuan stared blankly at Chang Haonan, who had his hands in his pockets. He could feel that what a confident spirit was hidden under the other person''s calm appearance! We are already stronger than them! ?How many people in the 1990s could say this from the bottom of their hearts? However, Chang Haonan didn''t just say it. ??His tone and expression when he said this sentence seemed to have a kind of magic that made others believe that he could really do it. ?Yao Mengna, who had been walking alone in front, subconsciously looked back because of these words. ?The other party''s image seemed to grow taller at this moment. ?Of course, what neither of them know is that for Chang Haonan, who returns from 2023, having this kind of thinking is really normal. Looking at Lin Shikuan who was stunned, Chang Haonan smiled, turned around and continued walking towards the dormitory. The former finally reacted at this time and quickly caught up to Chang Haonan: You are right, we can be better than them, just in terms of aerodynamic simulation... Among other things, the software we use is written by French and Americans. In fact, for people living in this era, it is very normal to have this kind of thinking. ??Be it Yao Mengna or Lin Shikuan, their patriotism may not be any worse than Chang Haonan''s. But feelings are on one side and reality is on the other side. Faced with the huge gap, it is easy for people to lose hope after being hit one after another. Chang Haonan can become that hope. Software, after all, is just a tool. He shrugged and replied: Those who build tools are not necessarily the best at using them, just like those of us who build airplanes may not necessarily be able to fly airplanes. After a pause for a few seconds, he continued to add: But what you said makes sense. After all, other peoples tools are not the most convenient. Sooner or later, we can also use our own tools. reasonable and well-founded. ?Lin Shikuan nodded after hearing this: Well, I hope you are right. If you need any help during this period, just let me know. Our entire digital design team will listen to you. Of course, Chang Haonan was not prepared to be polite to the other party. After all, he was still counting on gaining more management experience through these people. "The flow field simulation itself can be done by the two of us. Your task is to follow the idea mentioned by Yao Bo the day before yesterday and produce the digital structural diagram of the entire aircraft as quickly as possible. This will greatly improve the performance of the wing when it is improved later. efficiency." In the original timeline, the J-8F added an additional pair of wing blades in order to straighten out the turbulent flow field on the wing surface after carrying bombs. From an engineering point of view, this was of course the method with the least impact on the overall design. Later, The Americans encountered the same problem when developing the EA18G. The solution was to simply add a pair of wing knives. ?However, this does not mean that there are no better solutions. A better plan means more changes. If digital design methods are not adopted, the delay to the project progress will be very serious. We must do it as soon as possible. When Lin Shikuan said this, he hesitated. A few seconds later, he turned around and walked back in the opposite direction. Eh? What are you doing? ?Yao Mengna, who was walking together, didn''t react for a moment. Go and work overtime. "this" Yao Mengna looked at Lin Shikuan who was gradually walking away, and then at Chang Haonan next to her. Arent we going along? The latter shook his head neatly: I know the progress, and calculation and simulation rely on inspiration, so I have to have a good rest. Three days later, when a J-7 aircraft borrowed by Yang Fenghao landed on the runway of Beiling Airport, Chang Haonan also handed the calculation results of the wing flow field into the hands of the former. Such speed almost caught the project team by surpriseno one expected that the simulation results would be available within three days. In fact, this is because two people spent one day converting the numerical results output by the computer into a more intuitive flow field distribution map, otherwise two days would be enough. ?Yang Fenghata looked at the simulation results in front of him and took a deep breath: Change your schedule and fly early! (End of this chapter) Chapter 64 Im so lucky Chapter 64 I really went to heaven After a physical examination confirmed that there were no physical problems, Chang Haonan, wearing a flight suit and a flight helmet, carefully climbed into the front cockpit of the J-7 aircraft with the help of ground crew members early the next morning. As a training aircraft, the rear cabin of the JJ-7 has a higher level of flight control authority. Sitting there was the most experienced flight instructor in the army, named Zhang Jiujiang. ?A few dozen meters away from the J-7, a fighter jet with a slender body was also ready to fly. ? It is the No. 03 prototype of the J-8-3, and it is also the first of the two full-state verification machines in the original plan. To be honest, this is the first time Chang Haonan has seen the J-8 fighter jet with his own eyes. Although it is not comparable to the J-10, J-16, J-20 and other advanced models he had seen before his rebirth, in this era, especially when it is parked near the J-6 or J-7, the visual effect is outstanding. Its no wonder that he got the title of Cai Guoqing in the Sky. ?According to Chang Haonan''s calculation conditions, the No. 03 prototype has two Aspaid air-to-air missiles hung under each of its left and right wings. ??They are all models that have restored their weight and size. After all, the total number of missiles purchased from Italy is less than 80. Every time they take off, their lifespan will be consumed even if they are not launched. Naturally, it is impossible to even out 5% of the number for test flights at one time. Chang Haonan put on the oxygen mask according to the training before boarding the plane, took a deep breath, and closed the canopy to the left. ??The sound of the howling wind outside and the sound of the power supply truck and the gas supply truck working suddenly became much quieter. As a light aircraft, the cockpit of the J-7 was much smaller than he imagined, so that just sitting in it felt cramped. Engineer Chang, after taking off, you must be careful not to step on the rudder with your feet, and dont touch anything on the aircraft panel. Zhang Jiujiang was in the back seat while doing the final inspection before the flight and said: After taking off, I will try my best to ensure that the plane is as stable as possible, but after all, this is a small plane, and it will still be a little bumpy if it encounters airflow. If you feel uncomfortable in any way, you must tell me immediately. No problem. Chang Haonan gestured backward to indicate that he understood. As soon as he finished speaking, the No. 03 prototype next to him had released its brakes and started to slide slowly, and quickly passed in front of Chang Haonan. ?Compared with the J-7 he was riding on, the J-8-3 is indeed a very huge aircraft. This new aircraft of yours should be equipped with troops soon, right? Zhang Jiujiang looked at the back of the No. 03 verification aircraft slowly going away, and suddenly asked Chang Haonan. The latter thought for a while and felt that he should be able to solve all the pitfalls encountered in the 83rd Project. In fact, in the original timeline, if the unlucky No. 04 prototype had not been damaged due to completely non-technical reasons, even if the reliability of WP14 was not optimistic, the J-8-3 might have finally been finalized in a technical state similar to the J-8F service. Maybe, the current progress is pretty good. Thats great, we now dream of more advanced fighters. After hearing Chang Haonans answer, Zhang Jiujiangs tone became significantly lighter: Its a pity that the number of J-8B and Su-27 is too small now. For people within the aviation industry system and the Air Force, these are certainly no secrets. Can the J-8B still be considered an advanced fighter? Chang Haonan said with a dumb smile. "Alas, you don''t know how much those of us who fly J-6 and J-7 envy those J-8 troops." Zhang Jiujiang said and also put on the oxygen mask on his face: "At least they can fly one or two every time For an hour, we sometimes make bigger moves and have to return in half an hour. Chang Haonan really wanted to tell the other party that there should be a large number of heavy-duty fighter jets in service in a few years, but it was obviously not possible to say this now. It was appropriate, so the atmosphere in the cabin fell silent for a while. Fortunately, the No. 03 prototype in front had already taken off at this time, and the tower informed Zhang Jiujiang that it was ready to enter the runway. As several surrounding auxiliary vehicles evacuated one after another, Zhang Jiujiang slowly pushed the throttle valve to keep the engine speed at about half, and then released the brakes. Chang Haonan, who was in the front seat, only heard the roar of the turbojet engine gradually increasing, and then the plane began to slide amidst a sudden push on the back. ?Although he had flown a lot in his previous life, this was the first time he had such a broad view. There is still some freshness. ?But soon, as the plane began to speed up and prepare to take off, Chang Haonan felt as if there was a huge force pressing his whole body on the back of the seat, making it difficult for him to even breathe. The JJ-7 took off at a very high speed, so the rolling phase lasted for a relatively long time. But in the final analysis, it is just a light aircraft, and it was still very light when it finally took off from the ground. Engineer Chang, how are you feeling? Do you have any symptoms such as dizziness or stomachache? ?Zhang Jiujiang looked at Chang Haonan in front of him who had remained motionless and asked with some worry. Its okay, I feel good. Its just the first time to go to the sky from this angle. It feels a bit...new. Soon, the J-7 broke through the speed of sound at an altitude of 11,000 meters. The vibrations at high subsonic speeds disappeared instantly, and the aircraft became stable. Pay attention to the rearview mirror, the prototype is slightly lower than us. Zhang Jiujiang reminded. ?Chang Haonan raised the camera hanging on his body and pointed it to the right, always ready to press the shutter. ?Zhang Jiujiang is indeed one of the best flight instructors in the army, and he has perfect control of speed and position. Under his control, the relative speed between the two aircraft was only about 10 kilometers per hour. The J-7 even performed a smooth and slow barrel roll maneuver, providing Chang Haonan with an excellent shooting opportunity. Half an hour later, the two planes landed smoothly. Chang Hao went down to the ground and handed the camera in his hand to Yang Fenghata, who was already waiting next to the tarmac. The photos were quickly imported into the nearby computer, ready to be compared with Chang Haonans calculation results. Why dont you come and witness it with your own eyes? Yang Fenghao looked at Chang Haonan who was leaning next to the boarding ladder with a calm expression. Chang Haonan showed a confident smile after hearing this: No need, I already knew the result when I saw the No. 03 prototype in the sky. Waiting until the other party turned around, he quickly reached out and rubbed the back of his thighs that were a little weak ??I didnt feel it when I was on the plane. Just now when I landed on the ground, my legs were a little weak, and I almost made a fool of myself in public by not being able to stand. After all, it was a bit too exciting to experience supersonic flight in a fighter jet for the first time. Just when Chang Haonan finally managed to regain control of his legs and was about to try to stand up straight, a burst of cheers suddenly broke out from the crowd surrounding the computer not far away. Thats right! Its completely right! Chang Haonans simulation analysis results are almost completely consistent with the real flow field distribution shown by the red thin lines in the photo! (End of this chapter) Chapter 65 Remarks on the launch Chapter 65 Remarks on the Release This book will be officially put on the shelves at 12 noon tomorrow. Thank you very much for your great support to let this book come here all the way. ?Especially being able to jump directly to Sanjiang from the third round push is indeed beyond my own expectations. ?As we all know, the first order is the lifeblood of a book and is related to a series of subsequent recommendations after it is put on the shelf. So I hope that all readers will appreciate it and give me a first subscription, at least not to make the results too ugly. As for the update issue, the daily sales of 5 chapters are guaranteed to reach 10,000 on the day it is released. If the first order can exceed 2,500, the daily sales will continue to exceed 10,000 the next day. On this basis, for every additional 500 you order for the first time, you will get an additional 10,000 per day. If a reward is given, the helmsman will add one update, the leader will add three updates, and the alliance leader will add five updates. We have never seen a reward no matter how high it is, and we dare not say anything about it, otherwise it will appear that we lack self-knowledge. As we all know, it is not easy to write for academic masters. The number of papers I read every day for writing books is almost 50-50 compared to the number of papers I read for work, so the daily limit should be 4,000 to 6,000 words. There is not much to say, please subscribe, please reward, please vote!?Your support is the motivation for me to stay up late! (End of this chapter) Chapter 66 Solution【Please order first! ! ! 】(15) Chapter 66 Solution [Please order first! ! (15) After confirming that there is no problem with the accuracy of Chang Haonan''s simulation method, the remaining work is to conduct a few more test flights to obtain detailed data on the aircraft when aileron reaction occurs. With the efforts of the test flight team, the two prototypes 03 and 04 took off in turns, and it took only five days to complete all the test flights. It was finally proven that Chang Haonans calculation was completely correct. When the airspeed and elevation angle of an aircraft with bombs reach a certain value, aileron reversal will occur. In fact, even if the mount is adjusted to be closer to the actual combat status of two Aspade plus two Thunderbolt 8, this situation is still unavoidable, but it will appear later. As the test flight work ended, Chang Haonan''s system status also changed. Research Points: 85 Theoretical level: LV2 (0/10000) Engineering experience: LV1 (70/1000) Management ability: LV0 (65/100) Comprehensive ability: LV1 Projects in progress: 0 Projects that can be carried out: 1 Compared to before, it has gained 10 scientific research points and up to 50 management experience points. It can be considered a good harvest. The afternoon of the day when the complete test flight data was obtained. Its still the same conference room, with the same people as last time. ? Just because of Chang Haonan''s unusually outspoken behavior, today he, Yao Mengna and Lin Shikuan were directly invited to the seat near Yang Fenghao in front of the conference table. ?This time, the atmosphere in the venue became much more solemn Aileron reaction occurs at less than twice the speed of sound, and the corresponding deflection angle when aileron reaction occurs is only 10. The corresponding roll rate is less than 30 per second, and it takes 3 seconds to perform an ordinary 90 roll away action. This is completely unacceptable for an interceptor aircraft that focuses on high-altitude and high-speed capabilities. So everyone ruled out the answer of limiting flight performance through flight control from the beginning. The wings must be modified. ?In 1996, people were not so shy about smoking in public places, so not long after everyone entered the conference room, the whole room became filled with smoke. ?Chang Haonan hated the smell of smoke very much, so he moved slightly closer to the window. The first person to speak was of course Yang Fenghao: "Don''t be discouraged. Since the problem exists, it is better to find it as early as possible. The earlier, the less progress we will delay. So from this perspective, it is the first time that Comrade Xiao Chang and Comrade Xiao Yao joined the August 3rd Project Project Team. After that, its a great gift for us. After a moment of silence, I dont know who was the first to take the lead in applauding. Then there was thunderous applause. ?This sentence not only praised Chang Haonan and Yao Mengna, but also boosted the morale of the entire project team. After the applause gradually subsided, Yang Fenghao continued: "In order not to delay the test flight progress of Project 83 as much as possible, I decided to transfer the No. 03 prototype to Yanliang early next month according to the previous plan, and conduct a test flight that does not involve the project with bombs first, while the No. 04 verification aircraft will be kept. At Factory 112, preparations are being made for modification. Considering this, the No. 03 aircraft can no longer be regarded as a full-state verification machine. Therefore, after the wing problem is solved, a No. 05 verification machine will be built using backup parts, and a full-state verification flight will be carried out together with the No. 04. In this way, we can have relatively ample time to improve the wing. A few minutes later, Liu Ming, the deputy chief designer sitting first on Yang Fenghata''s left hand side, finally spoke. "Comrades, according to the data obtained from the test flights in the past few days, the reason for the aileron reversal is not complicated, but is the common problem of boundary layer accumulation." "The simplest solution is to flow horizontally on the wing. Add a pair of wing knives for dramatic locations." ?Chang Haonan nodded slightly. The engineers of Institute 601 indeed chose the same solution as later generations. In fact, from the current perspective, it is indeed the best way. ?During the flight of an aircraft, the airflow on the upper surface of the wing will automatically flow toward the wingtip, and accordingly, the boundary layer will gradually accumulate toward the wingtip. The accumulated airflow will eventually separate at the wing tip, and this separation process will bring a large shear force, causing obvious elastic deformation of the wing, thus causing aileron efficiency to decrease or even become counterproductive. ? To avoid this situation, the simplest way is to add a pair of baffles on the upper surface of the wing to block the lateral moving airflow. That is, wing knife. ?However, some people still put forward different opinions But Mr. Liu, the current J-8-3 already has two pairs of wing blades on its wings. If we add another pair, would it be a bit..." Although the wing blade is simple and effective, it is not without cost. The essence of its working principle is to break the leading edge vortex early, thus reducing the lift coefficient and stall angle of attack, which still has a certain impact on flight performance. ??Moreover, designing too many wing-wing knives will not look good in terms of appearance. Is it possible to consider merging three sets of small wing blades into one large set of wing blades, like the J-6? another person asked. ?However, it was quickly rejected: That can only reduce a little weight, but it will have a greater impact on lift and over-stall capabilities. For an aircraft as big as the J-8-3, the gain outweighs the loss. The heated discussion lasted for about half an hour, but there was still no solution that everyone agreed on. Finally, someone turned their attention to Chang Haonan, who had been looking down at the report in his hand without speaking. Dr. Chang, since you discovered this problem, do you know if there is a better solution? The conference room gradually became quiet. ?Chang Haonan stood up and walked to the blackboard with test flight results and design drawings. First of all, I want to tell you some good news. Chang Haonan turned around, looked at the engineers in front of him and said: After the efforts of the entire digital design team in the past few days, the parametric modeling of the aerodynamic and structural design of the J-8-3 prototype has been basically completed, so the time spent on modifying the design should be lower than expected. Another unusual result. The optimization design of the aircraft aerodynamic shape requires the evaluation of various aerodynamic shapes, so the aircraft aerodynamic shape needs to be repeatedly modified in order to improve its aerodynamic performance. Once you have a parametric model, you can drive changes in the geometric model by changing the design parameters, thus greatly shortening the geometric model modeling cycle. ?Lin Shibuan''s people had been working on a task for a year and a half without making much substantial progress, but Chang Haonan was able to solve it in less than ten days after coming over. Although the latter did not mention his name, almost everyone agreed that this was a manifestation of his deep hidden merit and fame. There was another round of applause. ?Chang Haonan stretched out his hand and pressed it down to signal to keep a low profile: As for the improvement plan for the wing, I do have an immature idea. Chang Haonan picked up an unsharpened pencil and drew on the design drawing and continued: The idea of ??adding a pair of wing blades is okay, but according to my simulation results, the area with the densest cross-airflow on the wing surface is near the trailing edge of the wing. Therefore, I think that the existing upper and lower aileron hinge fairings can be expanded into trailing edge wing blades. This increase in dead weight is almost negligible, and the look and feel is closer to the original bi-wing blades. At the same time, leading edge devices, such as leading edge **** or leading edge slats, can be introduced into the wing design. This can not only compensate for the impact of wing blades on the lift coefficient and stall angle of attack in the medium and low speed range, but can even greatly Improve the aircrafts low-altitude and low-speed performance! (End of this chapter) Chapter 67 Leading edge slats (25) Chapter 67 Leading edge slats (25) As we all know, the J-8 series fighter jets have poor low-altitude and low-speed performance. ?In addition to the poor performance of the turbojet engine itself at low altitude and low speed, a more important reason is that due to objective reasons, the aircraft chose a rather simple wing configuration during design. There is no leading edge device, and the trailing edge is just the most common traditional flap. Since the flow of this kind of flap is easy to separate from the suction-producing side, the wake is not stable. Flow separation occurs on the flap at medium deflection angles, and the lift-increasing capability is very average. ?But from another perspective, a low starting point means there is a lot of room for improvement, which is not necessarily a bad thing for the current Chang Haonan. Only this time, there is no experience for future generations to draw from. Hence, he has not yet decided whether to install leading edge **** or leading edge slats. The leading edge slat has a better lift effect, but the structure is more complex and it also brings greater noise. ?Of course, this is just a general rule, and the specific performance must ultimately be implemented at the design level. In general, there are advantages and disadvantages between the two, and it mainly depends on how to choose. Hearing Chang Haonans idea of ??extending the aileron hinge fairing into a trailing edge wing blade, almost everyone present brightened up. But when they heard about the leading edge lifting device, many people showed expressions of hesitation. Finally, Liu Ming concluded: Comrade Xiao Changs idea about the design of the wing knife is indeed very good. As for the leading edge lifting device Liu Ming and Yang Fenghao, who was sitting in front, looked at each other: Actually, when the 83 Project was still in the pre-research stage, around the end of the 1980s, we collaborated with the French company Dassault to design a leading edge slat, which was intended to be used to improve the J-8-2 aircraft at that time. This is something Chang Haonan has never heard of before. Yes, Mr. Gu also said at the beginning that if the J-8 can be equipped with a suitable set of leading edge slats, the overall performance will not be weaker than that of the Mirage 2000. Yang Fenghao also recalled: It happened to coincide with the honeymoon period of our cooperation with the French in the aviation industry, and a joint study was launched, probably at the same time as the Peace Model Project. ??When Yang Fenghata mentioned the words "model of peace", the air pressure in the entire venue instantly dropped a little. That story can be called a shame for Chinas aviation industry. In the mid-1980s, nearly US$600 million in currency value was wasted. Two aircraft were detained for several years without reason before they were returned to the country in parts. Some pro-American media in later generations even shamelessly promoted this plan as the so-called "starting point for the modernization of China''s aviation industry"! In fact, a large part of the reason why the August 3rd Project was established and received so many resources was because of the shameful failure of this model peace plan. We want to build a fighting machine, a fighter plane that can prove that we can do it without the help of Americans! Hmmhow was the design completed at that time? Chang Haonan asked. Honestly, its not that good. Yang Fenghao shook his head: We have been working with Dassault engineers for about two years, but the final design version still failed to achieve the performance that the French originally expected. "On the one hand, the structure is a bit too complex, and on the other hand, there is a lack of sufficient design tools. During wind tunnel testing, we found that there is always interference between the leading edge slats and trailing edge flaps, resulting in a lower lift effect. Only when its flap. This result was not what Chang Haonan expected. ??The biggest gain from Sino-French cooperation is that our country learned a complete set of aviation industry standards from the other country, and finally formed a complete national military standard in the air force field with reference to French military standards. But when it comes to technology specifically, there are really not many results that can be achieved, namely Z-9 helicopters and Sidewinder anti-aircraft missiles. The design of the Agosta 90B submarine proved to be completely inferior to Kilo. ?Super Hornet helicopters have been tinkered with for nearly 40 years. In the end, a new model was almost designed from scratch before being deployed on a large scale under the name of 8G/L. ? ?The 100mm naval gun, which was considered to be able to unify the main gun types of large and medium-sized surface ships, was even more of a sinkhole. After only being briefly equipped with about a dozen ships, the 100mm caliber was completely replaced by the 130/76 caliber. Its not that the French are deliberately doing bad things, its actually that they themselves were walking on these crooked roads back then In short, given these precedents, it does not seem too surprising that a leading edge slat design does not work well. ?But having said that, Dassault is indeed experienced in the design of large delta wings. From Mirage 3 to Mirage 2000, a variety of classic tailless delta wing aircraft were designed by Marcel Dassault. So Chang Haonan is somewhat interested in the design they gave. Mr. Yang, I wonder if there are still archives of Dassaults designs back then? Are you going to improve their slat design? Yang Fenghao asked, playing with the pen in his hand. It may not be an improvement. Chang Haonan shook his head: You may need to start the design from scratch, but it is always good to refer to the experience of the French. The performance of slats in increasing lift is better than that of leading edge flaps. As for the design, I think that since ten years have passed, many problems that could not be solved back then may not be problems now. ? ? When Chang Haonan first arrived at the 601 Institute a dozen days ago, if a young man in his early twenties dared to boast that he would complete a slat design that even the French had not done, I am afraid most people would have scoffed. But now, considering the amazing abilities that Chang Haonan has shown before, the first reaction of most people in the venue is that this thing may be possible! About an hour later, the long-dusted leading edge slat design data was taken out of the data room of Institute 601 and sent to the conference room. For such a serious work as aircraft design, the so-called design data cannot be just a design drawing, but two boxes filled with calculations and explanation documents. ?Of course, Chang Haonan does not need to see all of these things. His focus is firstly on the design plan itself, and secondly on what difficulties the French and the 601 Institute encountered back then, so that they could not even complete the paper design process. However, when Chang Haonan opened the overall design drawing and saw the complicated three-stage leading edge slat design, he almost subconsciously uttered a curse word. Oh my god, why is this a plan? Thats right, Chang Haonan had seen the slat design that was almost exactly the same as the one on the drawing before he was reborn. But it was neither on the Chinese plane nor on the French plane. But on a plane in India The LCA "Tejas" fighter was designed since 1983 and was not put into service until 2016. Its tailless delta wing layout was designed by Dassault. The leading edge slats of LCA are this precise and complex three-section structure. ?Now it seems that 80% of the time it was Dassault who perfected this semi-finished product after returning and stuffed it directly into LCA... (End of this chapter) Chapter 68 The courage to tear down and start over (35) Chapter 68 The courage to push back and start over (35) ?Chang Haonans subconscious complaint just now naturally aroused a burst of curiosity. Dr. Chang has seen similar designs before? Someone came into the conference room and asked curiously. Thats not true, I can only say that I have a certain understanding. Chang Haonan quickly went back to make up for it: "This three-stage slat is more suitable for use on French fighter jets with a tailless delta wing layout. It works together with the two-stage elevon on the trailing edge to guide the airflow between the wing root and the vertical tail. A vortex is formed. "But our J-8-2 has a conventional layout, and there is a horizontal tail at the back. The advantages of this design cannot be used. Instead, the drag and dead weight are increased for no reason. It is normal that the effect is not good. No wonder Mr. Yang just said This design is too complicated. ?After hearing this judgment, many people nodded in agreement. The cooperation with Dassault was in the mid-1980s. At that time, the Chinese aviation industry could only be said to have just begun to try to truly "design" rather than just imitate a fighter jet. Many things were indeed blank, and in 1996 this year At least everyone has some experience by now, and can naturally see the problems with this plan. ??Yang Fenghao stood up and came to the two boxes containing information. He very skillfully found a relatively new design document and handed it to Chang Haonan: "The complexity is secondary. After the French withdrew, we also tried to make some improvements. We only retained the two sections of the three-section slats on the outside of the wing, and then changed the structure to an ordinary one-section, so that the dead weight was reduced. But the interference problem between the ailerons and **** just mentioned has not been solved yet. Chang Haonan opened the thick document. Judging from the date of 1990 on it, it should be the improvement mentioned by Yang Fenghao. But at this time, he had basically made a judgment about the problem. Although the application of leading edge slats has a long history, as a relatively simple and crude lift-increasing device, aircraft designers have long been focused on two main points: the length of the slats and the position of the slats. As for that slat There is relatively little research on the "seam" that actually plays a role. Of course, this is mainly because before the mid-1990s, there was really no condition to conduct too detailed research on complex flow fields. Everyone only knew the basic principles of slats and their effects on improving low-speed maneuverability and high angle-of-attack performance. Another half an hour passed, and Chang Haonan directly skipped the calculation design part, and finally found what he wanted in the final wind tunnel test data. Mr. Yang, I can make this slat design! He closed the design document and returned it to its original position in the data box, then raised his head and looked at Yang Fenghata beside him: However, Im afraid its not enough just based on the conditions of our 601 institute. The conditions in 601 Institute are not good? Liu Ming next to him could not help but widen his eyes. Yes, from the design document that Mr. Yang just took out, we can summarize several major issues in the slat design. ?Chang Haonan turned around and walked to the blackboard again, but this time he picked up a piece of chalk, and then turned the blackboard to the side with nothing on it: "First, for multi-segment airfoils with large flap deflection angles, even if the incoming Mach number is not high, limited supersonic flow may appear on the upper surface of the leading edge, and there will be interference in the transonic zone and shock wave boundary layer. In other words, In other words, even if the slats only activate at subsonic speeds, it still involves the most complex transonic flow field simulation. Second, the wake of the upstream wing section is often mixed with the boundary layer on the surface of the downstream wing section. The resulting shear layer is a mixed boundary layer, and there is no ready-made empirical formula for use. "The third and most fatal thing is that when the trailing edge flap deflects, a separation bubble will form at the trailing edge of the main wing. If the leading edge slat deflects at the same time, then the mixed boundary layer and flow separation will appear at the same time, and There is interference between the two lifting devices on the leading edge and the trailing edge. Chang Haonan drew a classic three-section wing model of leading edge-main wing-trailing edge while talking, and then began to mark the flow conditions involved in the upper surface of the wing when the two devices work together. Thats true. Especially the third point you mentioned, Comrade Xiao Chang, was something we couldnt figure out when summarizing our experience and lessons at that time. Yang Fenghao nodded with emotion. On the one hand, he remembered the difficulties he encountered when designing this leading edge slat. On the other hand, he was amazed that Chang Haonan could condense the entire design in such a short period of time. The most critical question. Being able to find the main problems in complex real-life situations is already a very rare ability. So, since there is interference between the slats and flaps, it may not be enough to just improve the former. Chang Haonan drew a circle on the wing model he just drew and continued: I plan to treat the two as a whole and carry out a more detailed integrated design, comprehensively considering the following five factors: trailing edge flap deflection angle, trailing edge flap chord length, leading edge slat deflection angle, overlap amount, and slot width. Variables, completely overturn the entire plan. "In addition, after the design is completed, I am also planning to consider adding a set of parallel blades to the trailing edge of the leading edge slat as a flow deflector to guide the energy of the incoming flow into the vicinity of the wing surface and increase the wall boundary layer. The anti-separation ability further inhibits the occurrence of stalling. "But in this way, we need to solve the Reynolds average N-S equation through numerical methods for CFD simulation. The amount of calculation is very huge. It may take a long time to get the results just relying on the few workstations in the computing center, so I hope that by research Come forward and apply for use of the supercomputer! ?At the conference table not far away, Yang Fenghao leaned on the back of his chair and looked at Chang Haonan, who was holding chalk and high-spirited. ?For the first time, he felt that he might be old. Its not because of how the body functions, but... The vigor that I had when I was young is gone. ?According to his idea, since the No. 10 and No. 11 projects are already advancing rapidly, it is enough for the J-8-3 to only be responsible for the high-altitude and high-speed interception missions it is good at. But Chang Haonan is obviously not satisfied with this. He hopes to optimize this aircraft in all aspects, which is essentially obsolete before it enters service. For this reason, the existing wing design will be modified extensively. To tear it down and start over again. For designers in any field, it is quite courageous to dare to say these four words. Theres a lot of work, risk and responsibility behind this. ?Yang Fenghata doesnt like risks. But this time, he was somewhat moved. ?Furthermore, from the first time he heard the name Chang Haonan to now, the other party has shown miraculous abilities many times, which is also an important bargaining chip that affects Yang Fenghata''s judgment. ?Of course, for such a serious and influential decision, you still have to ask questions clearly first. So what technical approach are you going to use to complete the integrated design of this slat-flap? (End of this chapter) Chapter 69 Supercomputer (45) Chapter 69 Supercomputer (45) ?The reason why Chang Haonan dared to say such things as tearing it down and starting over again was naturally because he was 100% sure about improving the wings. While just flipping through the design documents, he had already asked the system to start a new project. [Based on the parametric modeling of the existing wing design scheme, the differential evolution algorithm is used to conduct an integrated optimization design of the trailing edge **** and leading edge slats to reduce the number of gaps and various airflow interference effects in the lift-increasing system, and improve Lift-to-drag ratio at low speed, especially at low speed and large angle of attack] Consumption of 15 points. ? Being able to start the project in the system means that there is no problem with the idea So after hearing Yang Fenghaos question, he expressed his plan without hesitation: This requires the parametric modeling provided by the digital design group to play a role. "I plan to post-process the results of CFD flow field analysis first, extract the required performance indicators, and use them as the objective function of the entire optimization problem. Then I will use the Kriging method to select sample points to establish a surrogate model, and then combine the surrogate model with the difference Evolutionary algorithms for coupling ??The method Chang Haonan talked about is basically the same as the model reduction method he talked about when he first met Yang Fenghao at Beijing Airlines, but the specific implementation methods are different. Of course, this is not surprising. CFD flow field calculation is an ever-changing thing, and its principle is to solve the Reynolds average N-S equation. ??The remaining methods and models are all because the N-S equation does not have an analytical solution in most cases, so it is necessary to develop a numerical solution method with high accuracy and low computational cost. ?Most people with an engineering background may not have a strong theoretical foundation. These things should be solved by mathematicians and physicists. ?So looking at the derivation process that Chang Haonan densely wrote on the blackboard, most of the people in the conference room were confused. But the final conclusion can be understood by everyone. This algorithm written by Chang Haonan can greatly improve the convergence speed of the optimization algorithm, and the increase in independent variables has little impact on the amount of calculation. Thats why he dared to optimize up to six independent variables at the same time! At the same time, hearing Chang Haonan''s answer, Yang Fenghao also recalled the amazing feeling he felt when he first saw this young man. ?The other person is worth the risk. So he stood up directly from his seat: Just do it! "Xiao Chang, I will apply for you to use the Sugon 1000 supercomputer. You should complete the algorithm and related programs in the past few days. If there is any test data needed, let the entire August 3rd Project team assist you." After saying this, Yang Fenghao turned around and faced another direction: "The wing structure research team has a heavy burden this time. The leading edge **** are movable rudder surfaces and require certain modifications to the wing structure. After the overall design of Chang Haonan''s slats is finalized, Complete the layout of relevant pipelines and hydraulic mechanisms as quickly as possible to ensure that manufacturing of the slats and **** can begin as soon as possible after the improvements pass the test! "The flight control project team must also pay attention to the work of Chang Haonan. We are designing a fighter jet, not a passenger aircraft, and cannot allow pilots to manually operate the slats, so you must modify and adapt the flight control system to maximize the new capabilities. The advantage of design comes! "In addition, since it has been determined to make design modifications to Units 04 and 05, we will simply not stop working on them and optimize other parts that were previously inconvenient to change, especially the intake duct professional team. You and Lets discuss it together with the 606 Institute. There should be room for optimization in the matching of the inlet and the engine. Of course, the premise is that it does not affect the improvement of the wing. Er-engineering design team Overall design team As an experienced designer, after determining his determination, Yang Fenghao began to assign tasks to various design teams participating in the August 3rd Project in an orderly manner. Chang Haonan is undoubtedly the core role of the entire improvement plan. ?His work currently has the highest priority, and other design groups need to cooperate. I have never experienced such treatment in my previous life. After clarifying the work that each group is responsible for, Yang Fenghao slowly scanned the entire conference room: Do each group know their tasks? If you have questions, ask them now! ?His posture of standing in front of the conference table and arranging work is indeed somewhat general-like. This may be a sign of a relatively high level of [Management Ability]. "clear!" Almost everyone answered together. ??Then, Yang Fenghao once again turned his attention to Chang Haonan beside the blackboard: "Xiao Chang, during this time, I will send Yang Xia, the deputy director of the Secretariat Office, to you to assist you. The Secretariat Office of our institute is also a confidential office, so her confidentiality level is very high, and she can handle all administrative matters. She is the agent. If you need to contact the institute with confidential information, you can contact her through her. Obviously, this is already a very high level of attention. Mr. Yang and the comrades of the project team please rest assured and ensure that the task is completed! ?Chang Haonan also quickly expressed his stance at this time. Looking at him subconsciously standing at attention, Yang Fenghao also showed a slightly relaxed smile on his originally serious face: "Don''t put too much pressure on yourself. As far as the requirements of Project 83 are concerned, the design of the leading edge slats is the icing on the cake. You can detect in advance the problem of aileron reversal when the aircraft is loaded with bombs. For this project, it is Its already a huge contribution. ??Although Yang Fenghao himself believed that Chang Haonan was capable enough to complete this change, as the project leader, he still had to provide sufficient support in terms of psychological construction. This support varies from person to person. ?Some people are poor at self-motivation, so extra pressure must be applied to prevent them from working too hard. Some people are the complete opposite. They often intensify themselves and need to be given a relatively relaxed environment to maximize their effectiveness. ?In Yang Fenghao''s view, Chang Haonan obviously belongs to the latter. Dont worry, Mr. Yang, I have confidence in myself. ?After the meeting, the entire August 3rd Project project team started operating around the wing improvement plan proposed by Chang Haonan like a sophisticated machine. Yang Fenghata was very efficient. As the person in charge of the Eighth-Three Project, he certainly had very high privileges in resource allocation, so it only took him a few days to apply for the Dawn 1000 from the National Intelligent Computer Research and Development Center. Supercomputer usage time. Chang Haonan himself used this time to write the user-defined functions (UDF) needed for the first stage of calculation in advance through Fluent''s open user interface. When the supercomputer arrives, he only needs to compile the UDF and embed it into the shared library. , and then execute it directly. As for the further work, we need to wait until the first stage of calculation is completed before the mechanism changes. Everything is ready, all we need is the east wind. (End of this chapter) Chapter 70 Differential Evolution Algorithm (55) Chapter 70 Differential Evolution Algorithm (55) Do you want to come with me? In the computing center, Chang Haonan carefully put the hard drive containing the data into a box while asking Yao Mengna, who was processing a batch of mechanical data next to him. The latter raised her head and hesitated for a while. It could be seen that she also wanted to take the opportunity to return to the capital, but in the end she shook her head. It is true that following Chang Haonan to the computer research and development center can definitely gain something, but Yao Mengna knows very well how many pounds she has - She has learned a lot from Chang Haonan during this period, but the bottleneck is that she doesn''t have many opportunities to try it out. Therefore, it is even more necessary to apply new knowledge down to earth. "No, I plan to stay here to help Lin Gong and the others continue to promote the matching of digital design and production and manufacturing processes. In addition, I also want to take advantage of this opportunity to optimize the entire machine of Project 83 to slightly change the canopy. " Canopy? Chang Haonan raised his head curiously. ?The other party has never disclosed such an idea before. "Yes, I looked at the photos you took in the sky and found that the traditional three-piece windshield has a very poor field of vision. Comrade test pilots in the Air Force had similar reactions, especially after installing a HUD. It was even worse. Left and right There is almost a blind spot of about 30 in front. So I was thinking if I could change the front windshield of the canopy into an overall arc type, the field of view would be much better. ?Yao Mengna nodded and took out two photos from the notebook next to her. One is for the J-8-3, and the other is for the Su-27. "I specifically consulted with Mr. Yang, and he told me thoroughly that in the No. 11 project where we introduced and domestically produced the Su-27, there is a complete set of AO120 plexiglass technologies required to manufacture an integral arc-type front windshield. As for the small batch trial production during the flight test phase, it can be completely solved by relying on the small amount of finished AO120 materials currently saved. Obviously, this is not a hot-headed decision, but a well-thought-out and proven feasibility. Chang Haonan just asked casually, and he is also happy to see that capable researchers like Yao Mengna and Lin Shikuan can solve problems alone through their learned abilities after receiving his help or guidance. Well, I wish you all the best. Same for ?. ??Yang Xia, the deputy director of the Secretariat Office assigned by Yang Fenghao to Chang Haonan, is a woman in her forties who looks very capable. ?Under her arrangement, Chang Haonan basically didnt have to worry about anything along the way. He checked into a guest house of the Chinese Academy of Sciences very smoothly, and came to the Institute of Computing Technology early the next morning. Using a supercomputer is different from an ordinary PC. It does not require you to actually enter a data room full of cabinets. In fact, it is impossible for outsiders to just go in there. ??As for directly connecting the computers brought from outside to the server physically... ?Although it is technically impossible, if you really dare to do this, you will probably be able to secure the iron rice bowl provided by the country for the rest of your life. ?The kind that you cant even think about. ??However, compared to later generations where you can directly apply for and log in to the cluster remotely, at this time only specific computers can connect to the supercomputer through xshell or ssh. "Dr. Chang, I''m waiting for you at the reception office at the door. If you have anything, you can call my pager." ?Because Yang Xia was not a technician, she did not follow him into the work area on the second floor. ?Under the guidance of the internal staff of the institute, Chang Haonan came to the door of an office with several terminal computers. ??But there was no one inside. A few minutes later, with the sound of hurried footsteps, a young woman with a bun trotted over. Huh are you Dr. Chang Haonan? The woman looked at Chang Haonan who was leaning against the wall and waiting, and asked breathlessly. Yes, I am. ?Chang Haonan nodded, and then looked directly into the office beside him. Its not that he doesnt want to say hello or say a few words. ?? But if you dont turn your head and pretend to look at the scenery, its really difficult to take your eyes away from the opponents chest that is surging from running... Sorry, Im Xu Yang, a researcher at the Institute of Computing Technology. There was a small problem in the computer room just now, so it was delayed for a while. ?This self-introduction shocked Chang Haonan and turned his attention to the other party again. Researcher of the Chinese Academy of Sciences is not a casual title, but a serious professional title. Perhaps high-level. ?The Xu Yang in front of him looks like he is no more than 30 years old at most. ?Twenty years later, a senior person under 30 years old may not be very rare, but this was 1996. ?Now Chang Haonan finally knows what those people who heard that he was just an undergraduate felt like before. Its really so terrifying ? Xu Yang, who was opposite him, seemed to have long been used to this kind of reaction from others. After briefly introducing himself, he led Chang Haonan into the office. I have been assigned the task of assisting you in completing the entire calculation, so which part do you need my help with? I have already written the basic calculation program, but it would be better if you could help me complete part of the parallel computing development using MPI. With systematic guidance, of course Chang Haonan can write himself, but no matter how efficient he is, he is still an individual. It would be great if he could have more power. " It would be much easier if you also know programming. How do you bring the data? Tape, floppy disk or... ?Chang Haonan took out the box containing the hard drive and a calculation instruction from his backpack. ?Although he himself does not need this thing, there are other people involved in the August 3rd Project, and files need to be kept, so he still needs to write one. Huh, the hard drive is pretty good. ? Xu Yang took the hard drive, plugged in a PATA interface data cable that looked like a strip of cloth, and then helped Chang Haonan open another terminal. Two people can read the files in the hard disk at the same time, so they can work at the same time without affecting each other. Genetic Algorithm? Not long after opening Chang Haonan''s program, Xu Yang saw some clues. No, its another...differential evolution algorithm? Have you started using the differential evolution algorithm for optimization? ?Her tone was obviously very excited. Do you know this algorithm? Chang Haonan was also stunned. In fact, he was not even sure whether this algorithm was born in 1996. Wellactually I studied for my Ph.D. at Berkeley. Strictly speaking, I participated in the development of this algorithm. "ah?" The shock that Xu Yang brought to Chang Haonan was probably not much different from what the latter brought to Du Yishan before. "But when my teacher originally thought of this algorithm, it was just to solve the fitting problem of Chebyshev polynomials, and it was only completely developed last year after I graduated. This is the first time I have seen it in other countries. Application in the field, has the domestic field of intelligent optimization algorithms developed to this extent? " ?Looking at Xu Yang with a surprised face, Chang Haonan didn''t know how to answer for a moment. There should be another update for the leader later. (End of this chapter) Chapter 72 Return to Beijing Airlines (add 25 updates for leader flankerr) Chapter 72 Return to Beijing Airlines (Added 25 updates for leader flankerr) With the cooperation of two people, it only took about 20 days to complete the design optimization of the heavily modified new wing of Project 83. The final simulation results show that the improved wing can greatly improve the maneuverability of the aircraft. The position where the aileron reaction occurs when the bomb is loaded is greatly delayed. The stall angle of attack and the available overload at large angles of attack are also significantly improved. improve. Of course, the specific performance data will not be known until the wind tunnel test is completed and the new wing is built and installed on the No. 04 demonstrator for test flight. In fact, if the Eighty-three Project is simply replaced with double delta wings, then there is potential for further improvement in performance in this area. But this deviates from the original intention of the development of the J-8 model. You know, the performance of the 1471G radar that the Bayan San Project is expected to replace is almost comparable to the APG66 (V). It may even be directly replaced with the 1473 type derived from it in the future, which is the same radar of the J-10, plus It is a twin-engine heavy interceptor, so the cost is not low. With both Project 10 and Project 11 progressing smoothly, Project 83 can only be positioned as a specialized high-altitude, high-speed interceptor aircraft for the People''s Air Force. It will follow a differentiated competition route. It is not easy to build two third-generation aircraft. things. So all changes currently made must be to optimize other performance as much as possible while ensuring its high-altitude and high-speed capabilities. ??If it is turned into an aircraft with no obvious strengths and weaknesses, it will have no advantage at all compared to the future J-10 and J-11. ?Under the guidance of this idea, combined with the current level of China''s aviation industry, Chang Haonan asked himself that he was already the best in wing design. ?In addition, while waiting for the calculation results, he also completed the explanatory document he had promised Xu Yang and handed it to him on the last day before leaving the Institute of Computing Technology. Originally, Chang Haonan was supposed to follow Yang Xia back to Shengjing after finishing work here. But if we count the days, its only a few days before Beijing Hang Universitys postgraduate interview is recommended. Although based on his current achievements, even if the confidential part of the 83rd Project is excluded, he can only rely on the first grade point in the whole grade, a paper in the "Journal of Aeronautics and Astronautics", and most importantly, the 603 application. As the first person to complete advanced technological achievements, this interview is just a formality. But this cutscene still has to go. Just like more than 20 years later, a professor from Beihang University became an astronaut and had to hold group meetings and preside over students'' graduation defenses in the space station. At this time in 1996, there were not many places with Internet access. The upper limit of the Internet speed was generally 56K, and in better conditions it could reach 128K. It took a while to open the simplest web page, so online interviews and so on... Dont even think about it. Of course, considering Chang Haonan''s special situation, the college also said that if he really can''t come back, he can use a camera to record a video of a few minutes and play it on site. ?However, he himself is in the capital now. After the wing improvement is completed, there seems to be nothing special to worry about in a short period of time. ??More importantly, the very act of using video to participate in an interview has a sense of beauty that is worthless. ?So after thinking about it again and again, I decided to explain the situation to Yang Fenghata and go back to school to take care of the direct examination. Sister Xia, I want to have a phone call with General Master Yang. ??Although this call has nothing to do with the specific content of the wing improvement, it involves the schedules of him and Yang Xia, so it is safer to contact them in a confidential manner. "Telephone? But we will go back to Shengjing tomorrow or the day after tomorrow." Yang Xia looked at Chang Haonan with confusion and asked. "Well... I have something to do at my school, so I may need to stay in the capital for a few days." ??Yang Xia was assigned the task of assisting Chang Haonan, so she would not interfere with the other party''s decision. She just led the latter to an office at the Institute of Computing Technology, where there were several red phones. You can use whichever one you want, Ill wait for you outside. After saying that, Yang Xia turned and left the room. Chang Haonan quickly called Yang Fenghaos office and explained the situation to the other party. Of course thats no problem. The reply over there was also very pleasant. After all, Chang Haonan is not from Institute 601, and in the past month or so, he has made great contributions to the entire August 3rd Project. ? Even just discovering wing design flaws in advance is equivalent to saving several months of time on the project. Not to mention that he directly solved this problem and even optimized the low-altitude and low-speed control problem that has troubled the J-8 for many years. In that case, Ill ask Engineer Xu Jinxu to come over and help you, and let him and Yang Xia bring the data back. Obviously, due to the importance of this data, Yang Xia cannot bring it back alone. It must be accompanied by a second person with the same secret level. ?Xu Jin is the old engineer Lin Shikuan mentioned before, and he met Chang Haonan at the first progress seminar. The arrangement was quite thorough, so the latter naturally could not have any objections. In addition, perhaps considering that after the wing design improvement work is completed, it will take some time to manufacture a new wing, Yang Fenghao even specially approved a half-month holiday so that Chang Haonan can concentrate on handling the school affairs. Have a good rest. ?Of course, if there is an emergency, you still have to make sure you are on call. ?So, the next morning, after completing the handover with Xu Jin, who had rushed to the capital after a long journey, Chang Haonan finally returned to Beijing Hang University. ?It is already mid-August, just in time for the freshman class of 1996 to register Due to military training, they arrive at school about half a month earlier than the old students. ?As a result, the school entrance was crowded with some bewildered new students as usual, as well as parents who came to see off their students. Chang Haonan finally managed to squeeze into the school after a lot of effort. Hello, classmate, do you need... Before he could recover, he heard a somewhat familiar voice. Old Wu? Chang Haonan raised his head and saw Wu Yifan standing under a parasol on the side of the road, obviously thinking that he was a new student with a suitcase in his hand. Im going, Nan Shen? The other party obviously recognized Chang Haonan: "Why are you here so early this year?" ??Then he immediately realized something and answered himself: "Oh, yes, you have to prepare for the postgraduate interview..." "Ahem... don''t talk about this." Chang Haonan waved his hand: "What are you doing?" Not far behind Wu Yifan, there were twenty or thirty students who looked like they were sophomores or juniors at the beginning of school. ? There are three tables placed a little further away, filled with several cardboard boxes, which look like IC phone cards, tape recorders, electric kettles and other small things. Well, Im not as capable as you. I let Academician Du decide to go to graduate school, so I can only take advantage of this opportunity to make a little money... Thats it for today, I will continue to add more tomorrow (End of this chapter) Chapter 73 special treatment Chapter 73 Special Treatment ?Under Wu Yifan''s low-pitched explanation, Chang Haonan finally knew what medicine was being sold in the other party''s gourd. College students in this era, especially those from rural areas or small cities, are often the first in their families or even within a village to be admitted to college, so sometimes they never think of preparing some necessities for campus life in advance. The former is eyeing business opportunities in this area. ??On the day when the freshmen registered, he directly found dozens of students from the club with average family conditions, and asked them to take the initiative to help the freshmen carry their things and take them all the way to the dormitory area, as if they were guiding them to know the way. ? Along the way, these students will, as seniors, impart some experiences of university study and life. ??Of course, the subtle advertising link is indispensable. However, both the identities of Beijing Hang University students and the experiences they teach are indeed true. In addition, there is no online shopping at this time, and people are relatively honest (good) and simple (cheating). Therefore, a considerable number of freshmen and parents are out of touch. In order to save trouble and trust, they will directly buy things they dont bring with them from these seniors. Wu Yifan is naturally the supplier behind it. ?If he is lucky, he can earn thousands of yuan in one day, and even students who are hired as coolies can earn a hundred yuan for living expenses. Quite an exaggeration. Chang Haonan smacked his lips, thinking that it was no wonder that the other party was able to earn a nine-digit net worth in the original timeline. This vision and execution ability are indeed something that ordinary people cannot learn. The two did not chat for too long. As registered students and parents gradually poured into the school, Wu Yifan and the "salesmen" he hired gradually became busy, while Chang Haonan returned to the dormitory with his suitcase. Since there is still more than half a month until the school starts for old students, Chang Haonan is the only one returning to school now. After taking a short nap to replenish the sleep he had been severely lacking during this period, Chang Haonan wandered to the vicinity of the aircraft building. The time and candidates for the postgraduate interview have been posted on the bulletin board at the door. The interview itself is conducted by the entire college together, but the final ranking is conducted separately for each major or department. As the most important college in Beijing Airlines, the total number of interviews for Aeronautical Science and Engineering is about twenty. ?Twenty years from now, a major with a similar number of people can easily support twenty graduate students. But in 1996, this number was still a bit staggering. But what is even more surprising is the selection of judges responsible for the interview this time. In addition to the old faces headed by Professor Liu Hongbo, there are also Dean Tang Lintian and two academicians! One of them is naturally Du Yishan. The other one is Liu Zhenxiang, an aviation power expert, chief engineer and first chief designer of the Gas Turbine Research Institute. ??Of course, he is also a professor at Beijing Hang University. ? If you count the time, he should have just been elected as an academician of the Academy of Engineering for successfully presiding over the SB-101 aero-engine high-altitude simulation test bed project, fulfilling his vow to "never leave the ravine until a high-altitude platform is built." He is also the first academician in the field of aviation power in my country. ?The high-altitude platform can simulate various flight conditions within the entire flight envelope of the aircraft on the ground, and test the engine and its components. It can be understood as a wind tunnel in the engine field. If there is no own high-altitude platform, the engine must be sent abroad for testing before being installed and tested for flight. In this way, the best result is that foreigners will know the performance of the engine earlier than the people who design the engine. ? ? If someone else secretly causes trouble and manipulates the test data for you, then you will basically never be able to figure out the engine. This is how Japan in later generations was miserably deceived by the United States. From this perspective, Liu Zhenxiang can be said to be the founder of all Chinas aviation projects from Turbofan 6 to Turbofan 10 to Turbofan 15.?????My grass Chang Haonan looked at the notice on the bulletin board and sighed involuntarily. The Gas Turbine Research Institute and the 29 base he worked at during his lifetime were both in Mianyang, but they were not in the same unit or even in the same system. Even so, Liu Zhenxiangs name is definitely resonant. ? And unlike Du Yishan, who retired early, Liu Zhenxiang still assumed some front-line work until the 2020s. I just dont know how the first flight of the turbofan 15 will go But since the high-altitude platform experiment went well, there shouldnt be a big problem. ?According to the original plan, the J-20 with the fourth-generation engine should make its first flight at the end of June 2023, but Chang Haonan was reborn before that time. Hey, Xiao Chang? ?Just when Chang Haonan was standing in front of the bulletin board and feeling alone, a familiar voice came from not far behind him. I was just thinking about asking your counselor Yan to find you. It was Du Yishan who just walked out of the building. Of course, Chang Haonan had notified the other party in advance of returning to school, but when most people did not have mobile phones, one could only rely on luck to find a person''s specific location. "Teacher, are you looking for me if you have something urgent?" Chang Haonan was stunned, thinking that he should have nothing else to do this time except for the postgraduate student''s recommendation to avoid the interview. Its not an urgent matter, I just wanted to tell you that Im going to change my place of residence. Du Yishan walked down the steps at the door with a smile and gestured to Chang Haonan to follow him: "This is also what Dean Tang and I want. We will give you a special room in the newly built faculty and staff residential building in the school." Staff housing? This The newly built residences in 1996 were no longer the kind of tube buildings, but the more common unit buildings later, with two or three households in each unit. The conditions were much better in comparison, but resources were very scarce, like Tang Lintian. All kinds of deans may not be allocated in the first batch. Chang Haonan was really flattered to be able to squeeze out such a place for him to live alone. Dont think too much, its just like giving you a single dormitory. Property rights cannot be given, unless you stay in the school to teach after graduation. If you have faculty status, then there will be no problem in terms of regulations. Hearing this, Chang Haonan realized. ??This is to take advantage of the fact that he has not graduated from undergraduate degree and his net worth is not yet exaggerated, so that he can be given some benefits in advance, so that it will be more convenient to retain him in the future. ?This is like investing. The same money is invested in angel round and B round, and the equity that can be exchanged is naturally different. ?However, Du Yishan saw his great enlightenment and thought he was hesitating, so he continued: "Don''t worry too much. Ph.D. students in our school can live in single and double rooms with higher standards. Considering that the project you are participating in is too special, if you live in the doctoral student dormitory where people come and go, many The time may be inconvenient, and the college will also be worried. ?Chang Haonan looked at the bulletin board not far behind him. ??He really wanted to say that the interview for exemption has not even started yet, and he will directly handle things according to the treatment of doctoral students. Does it mean that he is personally appointed? But then I thought about it, I was already called Chang Bo Chang Bo over there in 601 Institute, so it seemed that there was no need to be more pretentious about such details. ?Furthermore, even if you dont have property rights for the time being, dividing a house is still very attractive. Okay, thank you teacher and Dean Tang. (End of this chapter) Chapter 74 Postgraduate interview Chapter 74 Postgraduate interview In the next two days, in addition to preparing some relevant materials, Chang Haonan moved some of his belongings from the dormitory to his new residence. There are some differences between interviews and defenses. For example, you dont need to prepare a lot of relevant materials in advance. You just need to answer whatever the other person asks you. The postgraduate interview is scheduled for an afternoon a week later. Since it is an interview, naturally everyone goes in one by one. ?According to the stroke order of his surname, Chang Haonan ranked quite low, so he was not in a hurry. By the time he arrived at the scene, most of the people in front of him had already finished. Not long after, the defense secretary came out and called his name. Next, Chang Haonan. ??When Chang Haonan walked into the interview room, the seven interviewing teachers adjusted their sitting postures almost at the same time. Especially the two people sitting in the middle, Liu Zhenxiang and Du Yishan. One put on the glasses that had been placed casually on the table, and the other opened a thick notebook in front of him. ?From Chang Haonan''s perspective, you can see that there are a lot of small characters written densely in the book. Obviously, the purpose of the two people coming here today is very clear. The dozen or so people in front of them did not arouse the interest of these two big guys. This posture is already quite impressive. Many students perform abnormally due to nervousness after coming in. ?But its not a problem at all for Chang Haonan. If nothing else, the "review meeting" he experienced before going to 601 Institute more than a month ago was not bad at all. So after standing in front of the table, Chang Haonan looked as usual. Please sit down, classmate Chang Haonan. The first person to speak was Tang Lintian. ?Originally, this kind of job should have been done by Liu Hongbo and several others, but this time due to the existence of two academicians, the previous F4 interview for postgraduate research was probably not even able to get a chance to speak. ?According to the interview process, there will first be an examination of some professional knowledge, followed by the reading and translation of professional English fragments. These two parts were naturally no problem for Chang Haonan, and Liu Zhenxiang and Tang Lintian were not interested in this, so they ended hastily in less than ten minutes. The third and final link is free questioning. For most people''s postgraduate interviews, this part is basically equivalent to a chat session. The interviewer will just ask two questions, such as future research interests, and then it will be over. But Chang Haonans situation is obviously different from that of most people. This time, Liu Zhenxiang, who had been silent just now, finally spoke: "Classmate Chang Haonan, I have read the relevant technical documents submitted by the 603 Institute on ''Flutter Simulation and Active Control of Large Aspect Ratio Straight Wings'', so I have a few questions that I am interested in, and I would like to take advantage of them. Ill ask you this opportunity. I dont think its appropriate to read it, please tell me. "When conducting aero-servo-elastic modeling of the research target wing, you introduced two approximation methods in the Laplace domain for the aerodynamic matrix. The second one is based on the known reduced frequency point in the frequency domain. The corresponding aerodynamic coefficient matrix is ??used to calculate the undetermined coefficients, but this does not seem to be used in subsequent technical documents? " Liu Zhenxiang said that he had read the technical documents, and it was obviously not as simple as just flipping through them. Not only saw it, but also understood it. ??Although he is not an expert in aeronautical engineering and structural mechanics. An awesome boss is like this. He knows everything about the relevant fields. This questionI need a piece of chalk. The defense secretary quickly brought it in from outside. In fact, Chang Haonan himself has never seen the specific documents reported by 603. ?However, relying on his understanding of the model he "created", he quickly gave the answer to the question: "That''s right. The aerodynamic influence coefficient matrix Q(k, M) obtained based on the dipole grid method is a function of the reduction frequency k and the Mach number M. It belongs to the frequency domain aerodynamic force, but we want to obtain an aerodynamic servo elastic system. The state space model requires converting the aerodynamic expression from the frequency domain form to the time domain form. " "At any point in this conversion process, the two methods I introduced belong to a substitution relationship. Among them, the second one you mentioned, with the smallest error, the expression of the aerodynamic force F is F=q [Q1X(t)+Q2X\''(t)b/v+Q3X\''\''(t)b^2/v^2+E1Y1(t)+E2Y2(t)+E3Y3(t)+E4Y4(t )]. The prerequisite for minimizing the error is that the relationship between the undetermined coefficients must satisfy J/Q=k=0 ?Chang Haonan wrote a series of formulas on the blackboard, then turned back and said: "For computers, the second approximation method will have higher fitting accuracy, but since the order of the space equation will also increase, the computational burden will be heavy. Therefore, the 603 Institute chose to use the first method throughout the process. , should take into account the practical factors of calculation amount. After hearing this answer, Liu Zhenxiang nodded. To be honest, until the beginning of this interview, he was dubious about the authenticity of Chang Haonan''s ability. ?Mainly because someone in his twenties, who has not yet graduated from a bachelor''s degree, can preside over an advanced achievement in the aviation industry system as the first person to complete it. It is really... A bit outrageous. ?But now the facts are before us. Chang Haonan''s explanation is very clear. He is equivalent to giving 603 institutes two choices, one with slightly lower accuracy but less calculations, and the other with higher accuracy but more calculations. Its just that Party B finally chose the former one. There is no problem with the theoretical calculation process. ? And there are no reference materials in the whole process. I can write quickly on the blackboard after just thinking for a moment. It can only be done by people who know this model very well. Then, there is another question. Liu Zhenxiang turned the notebook to another page: "Have you ever considered applying a similar model to the rotor blades of aeroengines? Many advanced foreign engines have begun to use small aspect ratio rotor blades to reduce the number of compressor stages and reduce the failure rate, but then The chattering problem has become serious again. "Well..." Chang Haonan lowered his head and pondered for a moment. Logically speaking, this issue has nothing to do with his previous research. But it is related to the design problem of turbine blades that he plans to study later. So I happen to have some ideas. "good" Of course, Liu Zhenxiang knew that his question was unreasonable, so after seeing Chang Haonan''s expression and posture, he closed his book and prepared to end the interview. But as soon as he said the first word, the latter raised his head again: The model constructed using the dipole grid method has poor versatility and can only be used to describe straight wings with large aspect ratios, so it certainly cannot be directly used in the field of compressor design. But I think we can try to use the energy method to perform a full three-dimensional unsteady flow calculation, obtain the unsteady average accumulated work on the blade, and judge whether stall flutter has occurred in the blade based on the sign of the total accumulated work..." The first order data can only be seen at noon, so the update will be in the afternoon as usual. (End of this chapter) Chapter 75 It’s really straightforward this time (added 35 for leader flankerr) Chapter 75 is really straightforward this time (Added update 35 for leader flankerr) ?This question originally came to Liu Zhenxiang''s mind, and Chang Haonan himself was only in the brainstorming stage, so the two of them just conducted a qualitative analysis in a few words and ended the topic. ?As far as postgraduate interviews are concerned, they have been taking a bit long. Liu Zhenxiang re-closed the notebook in front of him with satisfaction: "Although the idea you just mentioned is not perfect yet, I am very optimistic about this direction. The Turbine Research Institute is currently studying the analysis method and evaluation basis of rotor blade flutter. You know, the equipment there is all newly passed. Acceptance, if..." Ahem Cough cough cough ?Only halfway through his words, he was interrupted by Du Yishan and Tang Lintian coughing almost simultaneously. Are you kidding me? They just used a loaned housing quota to give them a sweet spot the day before yesterday. Now you, 624 House, are going to directly poach people? Want some face? At this point in the interview, there is no need to continue. Originally, the interview process for the insurance graduate program is more of a formality. As long as there are no big surprises, interview scores will be based on the average score of the required courses. The reason why there was such a big battle this time was because Du Yishan applied for Chang Haonan to directly study for a doctorate. On the other hand, Liu Zhenxiang, who had just returned to Beijing Airlines from Sichuan Province, was very interested when he heard that there was such a student. I expressed interest that I must come and take a look. He said he wanted to take a look, but in reality, as the dean, Tang Lin didn''t know. But the latter''s status was far different from that of Liu Zhenxiang, so he gave Du Yishan, who was also an academician, Pull them over to prevent others from poaching the good seedlings. Just like this, we gathered together a ProPlus version of the interview review team with a total of 7 people. "Okay, the interview is over here. Go back and wait for the announcement." Tang Lintian put down the pen in his hand and waved to Chang Haonan, indicating that he could leave. Chang Haonan thanked him and was about to turn around and leave when he was stopped by Du Yishan from behind. "By the way, when this is over, I guess...30 minutes later, you can come to my office." Lao Du, Bole did a good job. Looking at Chang Haonan closing the door and leaving, Liu Zhenxiang signaled the defense secretary not to call the next person, but unscrewed the lid of the thermos cup next to him and said to Du Yishan next to him. It is definitely a blessing for the country to have such a talent and to use it for oneself. Bole is not me, this student was discovered by Hong Bo and recommended to me. ?Du Yishan smoothed his silver hair and pointed at Liu Hongbo who was immersed in writing comments next to him. He was obviously in a good mood. Liu Hongbo, who was immersed in writing a review, paused when he heard this sentence. What? recommend? ??There is probably still a huge gap between this statement and the actual situation. Its obviously you who always snatched people away from me, right? And in front of me, the rightful owner. ~tui Recommended to you? Just when Liu Hongbo couldn''t help but criticize his teacher, Liu Zhenxiang, who was sitting on the other side, praised him: "Young people have good vision and awareness." An invisible sharp knife penetrated Liu Hongbo''s heart. ?But no matter what, he definitely couldn''t continue to pretend to be an outsider, so he had to raise his head and showed an expression that seemed to be crying and laughing: "Academician Liu, thank you very much. If I had to train a student like Chang Haonan myself, I would probably have a hard time, so I thought of introducing him to the teacher." How could Liu Zhenxiang not guess this when he looked at Liu Hongbo''s expression? The whole story behind this, while secretly thinking that this old friend of his was indeed playing dirty tricks, he continued: Xiao Liu, dont feel aggrieved about this matter. As you just said, it will be very difficult for you to train a student like Chang Haonan. Actually, this statement is not accurate. Even Lao Du and I would have a hard time training such a student. What he needs is not training, but opportunities. Lao Du can provide a larger platform for him to exercise and display himself. In this regard, you will definitely not be able to do it. In the end, this kind of genius will only be buried. While speaking, Liu Zhenxiang glanced at Du Yishan next to him, and suddenly felt that he should consider taking a back seat and start focusing on cultivating students. ??Of course the latter also noticed the look directed at him. Heh, just jealous. "Okay, let the next student come in. Let''s finish quickly. Don''t let Xiao Chang wait too long." ?Du Yishan waved his hand to indicate that the topic should be suspended for now, and then said to the defense secretary next to him. After Chang Haonans defense, the subsequent defense process will naturally be much faster. ?So it only took about twenty minutes to get it all done. As for the results, there is no doubt about it. ?Du Yishan found the one belonging to Chang Haonan from a pile of interview transcripts, and handed it to Tang Lintian: As for the matter of directly studying for a doctorate, Ill leave it to Dean Tang. Dont worry, Ill take care of it. Tang Lintian put the transcript into his briefcase and glanced at the calculation process that Chang Haonan left on the blackboard next to him: Actually, if he could produce such results three months earlier, he could consider applying for graduation early this year. "Heh..." Du Yishan chuckled beside him: "I don''t know who was so coy and unwilling to help when I said I wanted him to go directly to the doctorate?" "This..." A trace of embarrassment flashed across Tang Lintian''s face: "I was very ignorant at that time, how could I have seen such a student..." The atmosphere in the conference room instantly became relaxed and cheerful. On the other side, Chang Haonan, who had finished the interview, met Zhou Shuwan on the stairs to Du Yishan''s office. ??The latter was also a member of the postgraduate interview, so naturally he came to the school in advance. ??However, his expression was not very good. Considering that Zhang''s name was seven strokes and Zhou''s was eight strokes, he probably met Zhang Man again when he was just waiting for the interview. Haonan, have you finished the interview too? Yes, Academician Du asked me to wait for him in his office. Chang Haonan quickened his pace and the two of them walked up the stairs together. So you have been working on projects in school during this period? ?Although Zhou Shuwans father also works in the 601 Institute, he seems to be participating in the concurrent J-8IIACT project, so he may not have met Chang Haonan. ?Furthermore, such military-related projects are confidential, and even his own son cannot talk nonsense about them. So it is normal for Zhou Shuwan to know nothing about this. Yes, a passenger aircraft project over there at the 603 Institute. Chang Haonan nodded. The MA60 model is not sensitive, and he was indeed involved. After all, even the advanced results reported by 603 had his name on it. ??Except for special projects such as nuclear weapons, participants in most classified projects cannot always remain isolated from the outside world, so half-truths and half-falsehoods are the correct posture for confidentiality. Otherwise, if a person obviously works in the aviation sector but remains silent about the projects he is working on, then even a fool can guess what you are doing. I found that I dont know how to read the first subscription... So Ill update the alliance leaders first, and ask the editor tomorrow... (End of this chapter) Chapter 76 Pay attention to the engine (add 45 for leader flankerr) Chapter 76 Pay attention to the engine (added update 45 for leader flankerr) After parting ways with Zhou Shuwan, Chang Haonan didn''t wait too long when he saw Du Yishan and Liu Zhenxiang coming from the stairs carrying things. The three of them walked into Du Yishan''s office together. Xiao Chang, I heard Yang Fenghao tell me two days ago that you helped them identify a hidden danger in the overall design just over a month ago? The two academicians are both people within the aviation system and have directly or indirectly participated in the 83rd Project, so they can naturally talk about this issue. Yes, its about the efficiency of rudder control. Chang Haonan nodded: But its not difficult to solve. This is his contribution in an upright manner, and there is nothing to be ashamed of. "Isn''t it difficult to solve?" Du Yishan and Liu Zhenxiang looked at each other: "I heard that the 601 Institute has revised the overall design once, and is even preparing to build a new full-state prototype for this purpose. This news is Not small." Oh, this is because Senior Sister Yao and I made some other modifications to the aircraft, especially to improve the aircrafts large elevation angle operation performance at subsonic speeds..." Chang Haonan then spent a few minutes briefly explaining the work he had done at the Institute of Computing Technology of the Chinese Academy of Sciences in the past twenty days. After listening, Du Yishan looked at Chang Haonan sitting on the sofa opposite and fell into silence. Even though he has a lot of life experience, he still doesnt know what to say when faced with this situation. ?He suddenly felt that language was such a weak thing that he could only express his current mood through silence. ?In the past, the progress of program improvements like this was basically measured in years, or at least in months. But since accepting a student like Chang Haonan, the unit "tian" seems to have become more common. Even occasionally you can see the hour count... "well" "well" Two almost identical sighs sounded at the same time. Du Yishan glanced at Liu Zhenxiang, and it could be seen from the latter''s expression and eyes that he had the same idea as him. "The waves behind the Yangtze River push the waves ahead..." ?But this sadness only lasted for a moment. Both of them knew very well that at their age, no matter how high their hats were, they were already at the end of their scientific research careers. The future must belong to young people like Chang Haonan. When young people are strong, the country will be strong! After a long period of silence, Du Yishan finally spoke again, but this time it was a different topic: Xiao Chang, from your perspective, do you think the August 3rd Project can make breakthrough progress before the end of this year? Breakthrough progress Chang Haonan is keenly aware that this problem is unusual. ?So he did not choose to answer immediately, but thought about the general situation of the entire August 3rd Project - not only what he knew now, but also what he knew in his previous life. Neither of the two academicians bothered him. A few minutes later, Chang Haonan raised his head again: I think if we just talk about the J-8-3 aircraft, we should be able to make a relatively optimistic progress this year. In fact, the design of the Eighty-Three Project is already very complete, and the only risk lies in the imperfect turbojet 14 engine. "Although the test flight progress of the full-state prototype has been delayed to a certain extent due to the major modification of the wing, through my previous work, I have basically figured out the situation of this aircraft, which can be fully solved through calculation and simulation. Obtain more precise test flight conditions and improve test flight efficiency. "Considering that there are still more than four months until the end of the year, it may still be difficult to finalize the design, but it should not be a problem to complete the test flights of the main subjects." After listening to Chang Haonan''s analysis, Du Yishan raised his hand and touched it. Touching his temples: You just said about the J-8-3 aircraft, do you mean that you think there will be problems with other parts? Wellthen of course its an airborne weapon. Chang Haonan thought for a moment and replied: "I heard from comrades in the 601 Institute that the progress of imitating the Thunderbolt 11 is not optimistic, and the number of Aspad imported from Italy is very small. If this is the case, even if we have a new fighter jet, we will still face problems. Organic and bullet-free situation. The field of airborne weapons and ammunition is an almost completely unfamiliar part to him. Although everything is possible with the system, his energy is limited after all, and it may be difficult to spare in the remaining more than 100 days of this year. Take the time to think about air-to-air missiles. Is this what you think? Thats right. Chang Haonans tone was full of confidence. At this time, Liu Zhenxiang, who had been listening silently just now, suddenly interrupted: Regarding the situation of Turbojet 14, Xiao Chang, you can do more snacking after you go back to 601 this time. Want to hear the details. ?Chang Haonan cheered up instantly. As a leading figure in the field of aviation development in my country, although Liu Zhenxiang has not directly participated in the turbojet 14 project, his judgment is obviously very valuable. In this matter, the progress of my work is a bit slow. Liu Zhenxiangs tone contained a hint of self-blame: "When the turbojet 14 was being designed overall, the high-altitude platform at the Turbine Research Institute was still in the development stage and its functions were not perfect, so there was no condition for comprehensive ground testing, especially in the absence of complex air intake conditions at high Mach numbers. test data. Although the turbojet 14 has not had any very serious accidents on the J-8-3 in recent years, neither we nor the 606th Institute are still relieved. "I heard Lao Du say before that you have also done some research in the field of flow channel simulation of impeller machinery. Originally, even developed countries in Europe and the United States highly rely on testing and experience in this regard, but I think if you come here If you do, you might find something." Obviously, Chang Haonans previous brilliant experience in the MA-60 and 83 projects gave Liu Zhenxiang full confidence in him. Is that so? ?After listening to Liu Zhenxiang''s explanation of the ins and outs, Chang Haonan immediately felt a little unable to sit still. Teacher, Im going back to Shengjing early tomorrow morning! ?Originally, he chose to go back to Beijing Airlines to rest for a few days. The main reason was that he felt that there was nothing urgent to do in the future. But now that he has a goal, it is not appropriate to stay in the capital anymore. Okay, Ill prepare a ticket for you tomorrow. ?Du Yishan nodded. When he heard Liu Zhenxiang talk about the engine problem just now, he knew what his student would do next. After saying that, he stood up and walked to a cabinet in the corner of the office. He opened the cabinet door and took out a brand new black computer bag and handed it to Chang Haonan: This was purchased from abroad some time ago. It is the latest model this year. It can be regarded as an undergraduate graduation gift from me, the teacher, in advance. ?Chang Haonan unzipped a corner of his computer bag and looked down. ThinkPad560. The pioneer of portable thin and light notebooks. Of course, this is all from the perspective of 1996. The weight of 1.9kg and the thickness of 3cm are quite exaggerated in this era. ??If this was another gift, Chang Haonan might choose to refuse. But he really needs a laptop of his own. Then thank you, teacher. It doesnt matter. If you can use it to make more contributions to scientific research, that will be the best thank you to me. (End of this chapter) Chapter 77 Sliding test (55 added for leader flankerr) Chapter 77 Sliding Test (Update 55 for leader flankerr) ?Chang Haonans flight was still scheduled for the next morning. Its still the same Tu 154M. ??Its just that this time he was alone, and his luggage included an extra computer bag than last time. Almost at the same time that he was about to leave school. On the outskirts of Shengjing, on the tarmac of Beiling Airport, personnel from the 601st Flight Test Station and the Air Force Maintenance Team were surrounding the No. 04 prototype that had just been pulled out of the assembly plant, checking the technical status of the aircraft. Test pilot Fu Guoxiang was sitting in the cabin, making final preparations before the flight. ?After downgrading Unit 03 to a non-full prototype and sending it to Yanliang, Factory 112 and Institute 601 established a "Youth Commando Team" to prepare for the upgrade of Unit 04 in three shifts. Finally, after receiving Chang Haonan''s calculation results, it only took a week to complete the production and replacement of the new wing. Of course, although the No. 04 aircraft has not changed much except for the wings, it was returned to the factory for major surgery after all. Therefore, according to Yang Fenghata''s requirements, all pre-flight inspections must be based on the new ones. Model standard to complete. In other words, Unit 04 is about to make its second first flight. However, according to Yang Fenghata''s arrangement, the aircraft will not actually take off this morning, but will first conduct three rounds of ground taxiing tests. ?This is also a treatment that only a brand-new model of aircraft can have. This plane deserves his caution. The more important reason is that Yang Fenghao received a call from Du Yishan yesterday, saying that Chang Haonan decided to return to Shengjing today. After thinking about it, he finally decided to put the official test flight in the afternoon. After all, Chang Haonan is the proposer and most important executor of this improvement plan, so it is appropriate for him to be a witness. In fact, Yang Fenghao estimated at the beginning that the modification work of the No. 04 prototype would take about two weeks, so he had just approved half a month''s leave with a stroke of a pen, thinking that he would be able to catch up when Chang Haonan came back. Test flight. It''s just that the efficiency of the youth commando team was beyond his imagination. ? What is extremely coincidental is that Chang Haonan chose to return to No. 601 School early after only one week of rest without knowing anything about these circumstances. Perhaps this is the bond of fate? Yang Fenghao thought to himself as he looked at the yellow-skinned No. 04 prototype not far away. ?At this moment, deputy chief designer Liu Ming came from a distance and interrupted his thoughts. Mr. Yang, all preparations before taxiing have been completed and everything went well. Do you want to start testing? ?Yang Fenghao habitually raised his wrist and glanced at the time. Even though he knew that there was actually a time on the flight test station that was several orders of magnitude more accurate than his own mechanical watch, this habit had been maintained for many years. Lets get started, lets go to the tower. ?Following Yang Fenghata''s order, the testers and equipment that had just surrounded the No. 04 prototype began to evacuate, leaving only the power supply vehicle and air source vehicle needed to start the engine. Fu Guoxiang in the cockpit heard the instructions from the radio at the same time. He closed the hatch, moved his neck slightly, then put on an oxygen mask, started the two engines with the help of external power supply, and pushed Throttle the valve and allow the rpm to stabilize at 20%. ? This is not the first time Fu Guoxiang has driven the J8-3. He was even responsible for the last first flight of the No. 04 prototype, so all this is familiar to him. According to the test flight process, the first part of the taxiing and rolling experiments is to test the stability and maneuverability of the aircraft''s ground motion at speeds of 20 and 55km/h respectively, corresponding to branch line taxiing and turning under normal conditions and crowded apron. gliding in state. The second stage is to test the aircraft''s deflection correction ability under medium speed taxiing at speeds of 80 and 160km/h. Fu Guoxiang, who was familiar with the road, completed all the subjects in the two tests in a short time, and everything went smoothly. Then comes the third step, high-speed taxiing, testing the performance of the aircraft''s relevant rudder surfaces at 240-320km/h, approaching take-off speed, and the balance of the aircraft when the front wheel is raised. Ordinarily, if this was really a brand new model, it would be impossible to complete these three links of testing in one day. ?However, the new model is not a new model after all, and many common minor problems with new machines do not exist on this prototype. Careful inspection before the test flight is to ensure that nothing goes wrong, but once the test flight process is entered, efficiency issues must be taken into consideration. At the end of the runway, Fu Guoxiang finally pushed the engine speed to 50% and released the brakes. The number displayed below the speedometer keeps getting bigger amidst the roar of the engine. ?Before conducting this test flight, someone had told him that the improved aircraft''s takeoff and landing performance would be better, so Fu Guoxiang controlled the attitude and speed of the aircraft very carefully. But the actual situation far exceeded his expectations. When the taxiing distance was close to 700 meters, it was obvious that the aircraft had a very obvious tendency to lift off the ground. Fu Guoxiang then gently pulled the control lever to prepare for the wheel-lifting test. Suddenly, he felt a very brief cycle of overweight and weightlessness. Obviously, at that moment, his entire plane should have left the runway for an instant, and then was pushed back by his belt lever like muscle memory. Fortunately, his test flight experience and skills were very good, so he did not make an early first flight. The main reason is that the sensors required for taxiing tests are different from those required for flight tests. Even if we fly up now, we cannot get complete data. The takeoff distance of this plane is about 100 meters shorter than before. Fu Guoxiang quickly made a judgment and reported the situation to the control tower. At the same time, Yang Fenghata, who had been waiting here since just now, also put down the telescope in his hand. Previous wind tunnel tests have shown that if other parts remain unchanged and only new wings are installed, the take-off speed of the aircraft without combat load can be reduced by about 12% from nearly 400km/h to about 350km/h. level, the take-off distance will also be reduced accordingly. ?Although it is still incomparable with third-generation aircraft, for the design of an interceptor aircraft, the 12% improvement is already quite exaggerated. After all, such changes are achieved without affecting the high-altitude and high-speed performance of the aircraft at all. ?Many comrades did not even dare to believe this result, so they slightly lowered their psychological expectations at the discussion meeting before the first flight. However, according to what the pilots just reported, the actual performance improvement of the aircraft is even better than the wind tunnel test results! ?Yang Fenghata smacked his lips and looked out the window at the No. 04 prototype that had finished testing and was taxiing to the tarmac. ??If we just talk about the indicator of takeoff speed, it is not actually the core performance of an aircraft. But it can reflect the lift level of the wing from the side, as well as the low-speed maneuverability that is very important for a fighter jet. He cant wait to see the data from the official test flight in the afternoon. Three chapters of the three helmsmen will be added tomorrow. If you ask the editor tomorrow and the first order is 2,500, then the day after tomorrow will continue to add 10,000. (End of this chapter) Chapter 78 J-83, its second first flight! Chapter 78 J-8-3, its second first flight! ??Yang Fenghata and others are not the only ones paying attention to this test flight. In another assembly workshop of Factory 112, technicians Artyom Trusov and Alexander Mosin from the Sukhoi Design Bureau are assisting their Chinese counterparts in the final pre-factory verification of the J-8IIACT stabilization verification machine. . ?While resting near the door of the factory building, they naturally witnessed the entire process of the sliding test. The aircraft test flight itself is actually nothing worth keeping secret. The main reason is that it is such a big airplane, and the turbojet engine is so noisy that it really cant hide anything. Not to mention the people working in Factory 112, even ordinary people living around can see them casually. The real secret is the detailed data obtained from the test flight. In fact, the fact that these two Sukhoi engineers were able to take a break at exactly this time, and to rest for several hours at a time, was simply specially arranged by Yang Fenghao. There is not only a morning session, but also an afternoon session later - What we want is for them to see the first flight of the No. 04 prototype! ?At noon that day, Tu 154M landed at Taoxian International Airport, and Chang Haonan got into the familiar 212 jeep again. Only this time, the car did not go to No. 601 Hospital, but directly sent him to Beiling Airport. ? Then Chang Haonan, who had not yet recovered, saw the No. 04 prototype ready to go on the tarmac in the distance, and he was so shocked that he almost exploded. I c...detian, have you changed it? You must know that prototype production is different from entering the mass production stage. Because the production has not yet been finalized, the efficiency is generally much lower. It can be seen that Institute 601 and Factory 112 are definitely fighting for their lives for this matter. During this period, all the departments in the institute have never turned off the lights. Wearing a blue overalls, Yao Mengna stood at the door of the jeep and said, probably because she was going to the workshop, her long hair was hidden in a hat. "Come with me, the first flight ceremony is waiting for you." Yang Fenghao directly opened the co-pilot''s door and sat on it: "This is your wing. You should witness its first takeoff with your own eyes." As for the accidental lift off the ground in the morning, the latter was certainly not prepared to talk about it. Chang Haonans original intention of coming back early was to verify whether there were any problems with the design of the turbojet 14, but after all, he was not willing to miss the first flight of the new J-8-3. ?Yao Mengna also got into the back seat on the other side, and the jeep sped towards the tower. ?When passing near the No. 04 prototype, Chang Haonan signaled the driver to slow down and specifically stuck his head out to pay attention to its wings. He wants to keep this shape in his mind This is the first project he has actually designed after his rebirth. In the past, whether it was the J-7F or the MA-60, although he played an important and even core role in both, he still could not be called "in charge of the design." But this new wing can. Twenty minutes later, everything was ready and the real first flight was about to begin. The test pilot is of course Fu Guoxiang. ?Under his control, the aircraft taxied to the ready-to-fly position at the end of the runway with ease. With this mornings experience, he has basically figured out the taxiing and take-off performance of this aircraft. ?Hence, after receiving the takeoff order, Fu Guoxiang did not choose a conservative long-distance taxi as usual for the first flight of a model. Instead, he directly pushed the throttle valve to maintain the engine speed at a higher level than in the morning. A faint orange-red high-temperature gas gradually appeared at the tail nozzles of the two turbojet 14 engines, and the air behind the aircraft also experienced optical distortion due to the sudden increase in temperature. ?After confirming that the speed was stable, Fu Guoxiang released the brakes. The aircraft instantly appeared in a slightly lowered nose attitude and began to accelerate and taxi on the runway. After gliding about 500 meters, Prototype No. 04 lifted up almost directly in front of the tower with a light gesture, straight into the sky! This distance Yang Fenghao, who was in the highest row of the tower, stretched out his palms flat on his forehead to block the sun. Although his telescope was in the hands of Chang Haonan next to him, he could still clearly see the rolling distance used for this test flight. It was much shorter than the one in the morning. "About 600 meters?" Chang Haonan temporarily put down the telescope in his hand. Absolutely, its shortened by more than 10% compared to before the improvement. Yang Fenghao was still a little excited: "We discovered during the wind tunnel test that the shape of the trailing edge of your slats should be optimized, and the resistance it brings when starting is very small. Now it seems that the actual situation should be even better than the wind tunnel results. " ?This time Chang Haonan just smiled and did not answer. In fact, in the total design cycle of about 20 days, he spent almost half of the time optimizing this part. The biggest problem of leading edge slats compared to leading edge **** is that the induced drag during startup is relatively large. ??It would be fine if this aircraft had great flying capabilities, but the thrust of the turbojet 14 is not good at low altitude and low speed, so the drag should be reduced as much as possible. ?At the same time, Fu Guoxiang, who was preparing to fly around the field in the cockpit, had also discovered that this improved version of the aircraft was significantly different from the previous one. He has flown almost every improved model of the J-8, from the earliest J-8 Bai to the J-8-2 with air intakes on both sides to the current J-8-3. But each of the previous ones will become very difficult to control when the speed drops below 400km/h. In fact, the lift coefficient and available angle of attack of the aircraft are not ideal. ? ? Pushing the stick a little will cause it to drop due to insufficient lift, and pulling the stick will cause the angle of attack to be too high, leading to a more dangerous stall or even spin. ?There is only an extremely narrow operating range that can maintain the aircraft in a controllable level flight state. If you encounter another external airflow interference... ?Then this interval is likely to disappear directly. So in the past, after flying an airplane to take off, the speed of the airplane would be increased to at least 450km/h as soon as possible to reduce the risk of maneuvering the airplane. But the feeling today is completely different. At speeds of 350-400km/h after takeoff, the aircraft''s control efficiency and flexibility far exceeded his expectations. The stick movements he was accustomed to before almost scared him, who had experienced many battles. Fu Guoxiang can feel very clearly that 350km/h is definitely not the limit of this aircraft. ?According to general custom, the first flight of an aircraft model usually does not even retract the landing gear, and the flight time is basically about 15-20 minutes. ?However, the situation of No. 04 is different after all. In addition to flying around and passing through the field, this test flight was also arranged to conduct several tasks to test the available overload under different angles of attack. Obviously the R&D team has great confidence in the aircraft. ?So Fu Guoxiang finally decided to request a lower-speed pass from the test flight station. After a few seconds of silence, a reply came over the radio. Approval is requested, but the passing speed shall not be less than 285km/h. (End of this chapter) Chapter 79 Stronger than Mirage 2000! Chapter 79 is stronger than Phantom 2000! Fu Guoxiang subconsciously held his breath. This is a speed that the old model J-8 could not even imagine. In the past, it had only tried it when flying stall performance. However, for the current aircraft, since the test station allows him to try it in the first test flight, it means that this speed is still relatively conservative. "receive." Soon, everyone presentincluding of course the two Sukhoi engineers who were watching the excitement from a distancewitnessed the No. 04 demonstrator performing a low-altitude pass with an angle of attack at an extremely low speed. ?After the roar of the engine gradually faded away again, the human voice that had just been covered up suddenly started to boil again. At that speed just now, why do I feel that...it may not even be able to reach 350? 350? ?Perhaps because the engine sound just now was too deafening, everyone who had not yet recovered subconsciously raised their voices a lot: How can there be 350? This is definitely not even 300, and it is flying smoothly without any feeling of struggle! Its not just the speed. Did you just notice the attitude of the aircraft? It maintained a controllable angle of attack of at least 15 while passing through the field. We are all engineers of 601, and we all have a good idea of ??the maneuverability of the J-8 at low speeds in the past. It can theoretically fly at a speed of 300km/h, but the aircraft in that state will be visibly unstable and extremely dangerous. How could it be possible to look as calm and leisurely as just now? This performance...is a bit outrageous. Dont be anxious, this is not really the first flight after all. There should be other test flight projects. After the test flight is over, lets see how much the overall performance can be improved! For fixed-wing aircraft, it is certainly a big problem to fly fast, but if you really want to fly slowly, the difficulty is not much easier. It is even more difficult to maintain effective control of the aircraft at extreme speeds such as very fast or very slow, and even ensure a certain degree of maneuverability to cope with air combat. Especially for a second-generation fighter jet, it is a matter of trade-offs. Didnt you see that in order to allow the aircraft to have both high-speed and low-speed performance, the United States, the Soviet Union and other countries all chose an extremely complex variable sweep wing structure at a certain period, which resulted in a certain degree of loss at the expense of huge dead weight and reliability. Take care of both. It was not until the third-generation fighter jets represented by the F15 and Su-27 that a more acceptable balance point was found. As a second-generation aircraft, the J-8-3 cannot fully achieve the level of a third-generation aircraft, but judging from today''s performance, it is absolutely not a problem to say that the overall flight performance is that of a 2.75-generation aircraft. ?Yang Fenghao, who was standing in front of the window, did not speak. He just patted Chang Haonan on the shoulder and shook the latter''s body heavily. Everything is left unsaid. ?Compared to Yang Fenghata who was simply surprised by the performance of this aircraft, the reborn Chang Haonan had completely different feelings when faced with the scene of the J-8 passing through the field at low altitude. The low-altitude and low-speed performance of the J-8 was a difficult problem for any Chinese aviation person and even any Chinese military fan in the original timeline. The collision in 2001 left too many regrets that can never be made up for. "Now, our aircraft should no longer have such defects..." Chang Haonan looked at the horizon outside the window, the corners of his eyes slightly moist. At this time, Yao Mengna, who was standing on the other side, just turned her head. As Chang Haonan said to Du Yishan and Liu Zhenxiang on Beijing Airlines yesterday, with his help, the progress of the test flight process can be greatly accelerated. ?This is one of the reasons why Yang Fenghao dared to directly arrange complex subjects for Fu Guoxiang in this test flight. ? In short, this first flight, which was not the first flight, lasted nearly an hour and ended smoothly with a puff of smoke rising when the rear wheel of the No. 04 prototype touched the runway. Lets go to the tarmac! The flight test data will naturally be collected and processed by the personnel at the flight test station. The most important thing right now is to welcome the test pilots on their triumphant return. ?Ten minutes later, Prototype No. 04 slowly stopped at the designated area on the apron. Fu Guoxiang turned off the engine, waited for the canopy to be opened, and then waited for the ground crew to move the boarding ladder. In the process, he had already seen the crowds of people coming from a distance. Even though it was not the first time for most members of the 83 Project to experience the first flight of an aircraft, everyone was still extremely excited when they saw Fu Guoxiang who had just climbed out of the cockpit. On the one hand, the performance of this improved aircraft is really good and somewhat unexpected. Many people did not dare to believe the data blown out of the wind tunnel last night. But after the test flight, although the detailed data has not yet been compiled, at least in terms of stall speed and take-off distance, it is visible to the naked eye that it is better than the wind tunnel results. This is a rare situation. On the other hand, the improvements were made a little too quickly for everyone involved. From proposing improvement ideas to finalizing plans to manufacturing, final assembly and first flight. It only takes a little over a month in total. And this is not a small change, including the new wing designed by Chang Haonan, the canopy designed by Yao Mengna, and a series of upgrades in avionics and cockpit human-machine functions. What is the concept? In the past, this level of improvement would have taken less than a year to complete the process. So even though each process has been checked and confirmed many times, everyone just... I feel a little unsure. A bouquet of flowers was delivered to Fu Guoxiang''s hands. Since this is not a new model after all, there are no leaders at the scene. Chief designer Yang Fenghao and Chang Haonan, who led this improvement, hugged him respectively in the center of the crowd. How does the plane feel? ?Yang Fenghao asked. In matters such as test flights, data is only one aspect. The pilots subjective feelings are actually also very important. The first words Fu Guoxiang spoke shocked everyone around him. Much better than the Phantom 2000! You must know that Fu Guoxiang once went to France for training and exchanges, and he actually flew the Mirage 2000. What he said was quite convincing. ?Of course, the Mirage 2000 is still a quasi-third-generation fighter based on the second-generation fighter and redesigned according to the standards of the third-generation fighter. But compared with typical second-generation aircraft such as the F4 or MiG-21, it is still very different. You know, about ten years ago, the Chinese Air Force even considered introducing the Mirage 2000B/C. Now, our new aircraft has already surpassed us even in areas where it is relatively weak. Considering that the Frenchs latest fighter jet Rafale has not yet officially entered service at this time The same thought appeared in the minds of many people present: ??The fighter jets of the Chinese Air Force may soon no longer be the weakest among the Wuchang. Additional update as usual in the afternoon (End of this chapter) Chapter 80 Sukhoi Company’s decision (additional update for the helmsman’s eternal F4U) Chapter 80 Sukhoi Companys Decision (Additional update for the helmsmans eternal F4U) In addition to the greatly improved low-altitude and low-speed maneuverability, Fu Guoxiang also spoke highly of the aircraft''s new cockpit. Especially the integrated front windshield. ?This made Yao Mengna, who had been silent beside her just now, also very happy. After a long time, the crowd surrounding Prototype 04 gradually dispersed, preparing to return to their jobs. ?Yang Fenghata called one of his secretaries from the side: Let the canteen prepare a few more dishes and lets celebrate a little tonight, especially for Comrade Xiao Chang! Theres no need to drink. We have to analyze test flight data in the evening. We may have a meeting tomorrow. Well wait until the aircraft design is finalized. ?Chang Haonan walked at the end of the team and took a look at the current situation of the system. Research Points: 120 Theoretical level: LV2 (0/10000) Engineering experience: LV1 (370/1000) Management ability: LV1 (100/1000) Comprehensive ability: LV1 Projects in progress: 0 Projects that can be carried out: 1 Unsurprisingly, this was his biggest gain since his rebirth. 50 scientific research points, 300 engineering experience points, and 135 management ability points. ?Chang Haonan is temporarily unable to perceive the effect of improving his management ability by one level, but the increase in scientific research points is real. Especially when he is about to verify the overall design of the turbojet 14. While there was a lot of joy here, the two Sukhoi engineers who were specially arranged to "accidentally" witness the entire first flight process were obviously thinking about more. Artyom, did you see the low-altitude pass that the plane just made? Mosin leaned against a wall and gently touched his beard: How fast do you think it was? "I know what you mean." Trusov did not waste time to answer the question directly, but answered directly: "Although it is not clear what kind of changes they have made, the performance of this new aircraft is obviously better than It was much stronger before. The two Russians certainly have no way of knowing the ins and outs of the modifications to the wing design. In addition, the entire posture created by Yang Fenghata looked like the first flight of a new model, so none of them thought that the aircraft was actually just modified from the previous prototype, and they all thought that the 601 Institute had tinkered with it. new model. Although this type of aircraft was designed by them themselves, it is indeed somewhat similar to our Su-15. ? Mosin is older than Trusov. He participated in the later improvements of the Su-15 aircraft: "In the 1980s, we installed double delta wings on many Su-15TMs, which greatly improved the aircraft''s maneuverability. However, when the aircraft just flew over our heads, we could see that it still retained the large "Delta Wing." If there are no big changes in the overall design, it should be that they have adopted some lifting technology. We are too far away to see the details clearly. ??Trusov shrugged, and then looked at his old friend next to him with wary eyes: "Don''t you want to take a closer look? I don''t want to cause trouble." ?Although two people were hired to improve the technology of the J-8IIACT, other models were naturally kept secret from them. Do you think Im stupid... Besides, no matter how much improvements are made to this aircraft, its still a second-generation aircraft, and theres nothing worth seeing. Mosin shook his head decisively: What Im thinking is, are they sending a signal by flying a new model with significantly improved performance at this time? Trusov on the side obviously doesnt want to think too much about these things: "How about reporting this matter to the country through the consulate and letting the higher ups take care of it? The two of us rely on technology to make a living, so it''s useless to think about it. But I just heard vaguely that there is a celebration banquet in their cafeteria tonight. Food It should be much better than usual. After hesitating for a few seconds, Mosin was obviously convinced: Thats okay, then Ill make a phone call and you can go to the cafeteria to get me something to eat. ?In this way, the news of "a new J-8 improved test flight" was quickly spread back to Russia. Due to the time difference, when Shengjing planned to have dinner, the time in Moscow happened to be just after lunch. In Sukhoi Design Bureau. ?A middle-aged man walking in a hurry walked into the office of Mikhail Simonov, the chief designer of the Su-27 aircraft and the current head of the Sukhoi company. ? ? "Misha, you are here, please sit down first." ? ? ? The man''s name is Mikhail Pogosyan, who is considered Simonov''s student and successor. ?After the former gradually withdrew from front-line work due to age and energy issues, he has gradually begun to actually lead the technical department of the Sukhoi Design Bureau. Simonov got straight to the point: "Misha, our negotiations with the Chinese on the transfer of Su-27 aircraft technology must be accelerated. You tell Kurbsky that we can make decisions regarding the specific content of the transfer and the number of aircraft to be purchased. There must be concessions, but the price, especially the transaction method, must be guaranteed. Speed ??up? ?Pogosyan was a little confused by Simonovs sudden statement: In fact, the master and the apprentice had certain differences on the matter of arms sales to China. Simonov has always been very tough, especially regarding the Su-27SK that imports parts for assembly, which is the contract number of J-11A. He has always insisted on killing at least 200 aircraft. The negotiations between the two parties have not progressed smoothly. Pogosyan believes that instead of wasting time and energy on such things, it is better to use some concessions to exchange funds faster, and then invest in the development of new models of aircraft. Thats right, speed up. Simonov nodded: "To be specific, we agree to transfer the production line of the two-seat Su-27UB together and no longer restrict them from replacing core components such as radar, engine and airframe materials. Of course, we will certainly not be responsible for the technical problems that arise after the replacement. , lets make this clear. Why... why did you suddenly... Come and take a look at this. Simonov said, picking up a brief newspaper from the desk and handing it to Pogosyan. The above is naturally about the first flight of the new aircraft of the 601st Institute. New model Pogosian probably understood why his teachers attitude had changed 180. ?But he was still a little confused: But teacher, even if according to the above, the performance of Chinas new aircraft has improved greatly, they currently have no way to produce usable beyond-visual-range air-to-air missiles. Whats the use of just one aircraft? ?Mainly, even he felt that the concession mentioned by Simonov just now was really too big. Its not that these conditions must not be met. At least Have to add money. Thats what Im worried about Simonov let out a long sigh, then stretched out his hand and tapped rhythmically on the table: You know, they actually discussed the Beetle radar issue with the Fazatron Research Institute before, and also negotiated with Ermao on the introduction of R27 air-to-air missiles, and now they have built an airframe with good performance... ?Pogosians expression also became solemn. ?Originally, both sides were actually very anxious. ?Sukhoi Company is facing economic pressure and is eager to get money to revitalize the situation. ??As a heavy-duty fighter with a maximum take-off weight of more than 30 tons, the Su-27''s help to China''s aviation manufacturing industry is also obvious. This is also the main reason why both sides were able to stalemate ??They all felt that the other party would be unable to hold back at first. But now, even if China still has difficulties with its weapon systems, it can turn to purchasing key components and obtain certain beyond-visual-range air combat capabilities in a short period of time. They may not be so anxious. As for the money to buy radars and missiles, not even a single ruble went into the pockets of Sukhoi. ?Thinking of this, Bogosian couldn''t sit still anymore. Ill go find Kurbski right away! (End of this chapter) Chapter 81 Turbojet 14 (Additional update for the helmsman’s flying magic luppp002) (two-in-one) Chapter 81 Turbojet 14 (Additional update for the helmsmans flying magic luppp002) (two in one) Due to major changes in the design of the No. 04 and No. 05 demonstrator aircraft, the day after the first flight of the No. 04 aircraft was completed, Yang Fenghata quickly presided over a work meeting involving different factories of the 83rd Project. Coordination meeting to determine the current technical status of the 83rd Project. Different from the previous progress seminars that were only held within 601 institutes, this meeting was of a higher level, covered more and wider fields, and had several times the number of participants. In general, the improvement work related to the wing is progressing very smoothly. While Chang Haonan was designing the slats, the wing structure research team successfully arranged the relevant pipelines and hydraulic mechanisms for the leading edge slats into the main wing structure at the expense of reducing the volume of the wing fuel tank by about 5%. The entire improvement project saved the most time. ?Lin Shikuans digital design team also connected with Factory 112 and successfully introduced digital manufacturing technology into the improvement and production process of the new wings of the 04 and 05 prototypes. ? This allows Factory 112 to start production preparations for the new wing almost simultaneously with wind tunnel testing after obtaining complete design data. Within a few days of wind tunnel testing, the flight control design team calculated the aircraft control rate under slatted conditions as quickly as possible and made corresponding modifications to the previous flight control system. They have accumulated considerable experience in the design of analog and digital fly-by-wire flight control in the past J-8ACT and the J-8IIACT active control technology demonstrator aircraft that will soon make its first flight, so their capabilities in this area are quite reliable. . ? It is precisely because of all the above reasons that the No. 04 prototype was able to complete improvements and make its first flight again in such a short period of time, and the key components of the No. 05 prototype have also begun production. The new overall arc windshield led by Yao Mengna has also completed the structural design and installed the first sample on the No. 04 prototype. She is assisting Factory 112 in designing a new molding and clamping system control software to ensure Improve the quality of molded parts and reduce the scrap rate. ?However, if it were all good news like this, then Yang Fenghata would not actually need to convene this meeting. The problem still lies in the flying hair matching work. After the work docking between the air intake professional team and the 606 office responsible for the WP14 engine, they still have not been able to find out the root cause of the engine''s possible smoke-inhaled shutdown after the missile on the inner pylon was launched. Objectively speaking, the working conditions of the engines of the PL8 or PL11 missiles are indeed very bad when they are launched - When the 612 Air-to-Air Missile Research Institute in Luoyang developed the Pili 8 air-to-air missile, there was no smokeless propellant that met the performance standards in China, so the pyrotechnic effect of this missile when launched was very spectacular. Coupled with the WP14 engine, which is not very stable to begin with... This is a problem caused by the weak aviation industry system. China is not alone in the world in using smoke or micro-smoke propellants. In fact, as long as the aircraft and engines are properly designed, a small amount of primary smoke composed of carbon particles and metal oxides will not affect the launch platform. For countries with strong aviation industry, even if a certain link in the equipment system is not perfect, it can often be made up for by leaving margins in other aspects. But for China in the late 1990s, every link in the equipment system was not perfect, and it was already very difficult to meet its own design targets. Therefore, once something went wrong, it was difficult to count on other parts to help fix it. When the topic came here, the warm atmosphere at the beginning gradually turned serious. Fortunately, although China''s aviation industry system lacks capabilities, it at least has unified leadership and there is no phenomenon of mutual criticism between different systems. ?At this time, Institute 601, Institute 606 and Institute 612 are a whole, and there is no use in shifting the blame. The key is to find ways to solve the problem. Since it is currently impossible to determine where the specific problem is with the engine, we might as well change our thinking. Finally, a comrade from the overall design team put forward his own idea: The detachment method of the missile on the innermost pylon can be changed from the slide rail type to the ejection type or the drop type, which can reduce the smoke concentration faced by the engine, thereby reducing the failure rate. Chang Haonan, who was sitting in the first row of the conference table, wrote this question in his notebook and frowned slightly as he thought about it. This comrades idea is of course feasible. The missile needs to be tightly connected to the aircraft through the lead frame and suspension beam. The so-called slide-rail launch means that the missile is ignited directly on the launcher and relies on its own thrust to slide along the track and leave the launcher. As for ejection and drop-type launches, the missile first leaves the launcher through the ejection mechanism or its own gravity, and then ignites in mid-air. Since the missile is already at a certain distance from the carrier aircraft when it is ignited, the impact on the latter will naturally be much smaller. In fact, these two methods first appeared to launch heavy air-to-ground missiles that were relatively noisy when ignited. ?There is no problem in dealing with the similarly noisy Pili 8, as well as the future Aspad or Pili 11/12. But everything has a price. ?These two methods have strict requirements for overload during launch, and as a weapon used in close combat, the Thunderbolt 8 often needs to be launched under conditions of large overload. So if this method is really adopted, it basically means that the inner pylon can only carry mid-range air-to-air ammunition or auxiliary fuel tanks. More importantly, Chang Haonan doesnt like to avoid questions like this. Although the smoke concentration of the Thunderbolt 8 is very high when it is launched, it can be launched normally on the previous J-7E and J-8B. The R27 medium-range air-to-air missile, which also does not use smokeless propellant and is more noisy when launched, can even be launched directly under the Su-27''s inlet. So no matter what, WP14 must have flaws. Even if the immediate problem is solved by changing the launch method, the two unstable engines will still be a hidden danger. It must be changed! ?The truth of this matter is not complicated. Chang Haonan can see it, and other people participating in the work coordination meeting can naturally see it too. Furthermore, changing the missile separation method actually does not require any changes to the aircraft itself, just changing the guide frame, and it does not even require the participation of any unit in the August 3rd Project. Hence this proposal was ultimately chosen as a fallback option. On the other hand, due to the major changes in the wing design, Project 83 has an additional prototype. It is expected that the number of test flights will be more than originally planned. The 606 Institute and the inlet professional team will also have the opportunity to solve the problem. Investigate the cause. Of course, the safest way is to give up the turbojet 14 and go back to the slightly inferior but proven turbojet 13F2. But not only the 606 Institute, but also other people involved in the August 3rd Project were unwilling to do this. The reason why China''s aviation engine development has been bumpy is that, in addition to its weak foundation and the high difficulty of aviation engines becoming the crown jewel of the industry, another important reason is that our aviation engines have always been used as corresponding aircraft. The project exists in conjunction with it. This is not only true for imitations, but also for self-developed models. If the aircraft project is discontinued, the corresponding aviation development projects will also be discontinued. This has resulted in almost no back-and-forth between different types of aviation engines, and each project has to start from scratch for scientific research institutes. In fact, let alone every project, a project with the same code name may be overturned multiple times at different stages due to completely different performance and technical requirements. This lesson is particularly unforgettable for School 606. In 1963, in order to improve the H-5 bombers that were heavily equipped at the time, the 606th Department, under the leadership of Wu Daguan, developed the No. 950 engine based on the turbojet 6, which was later named the turbofan 5. Compared with the turbojet 5 originally used by the H-5 Engine A increases fuel consumption by 35% and fuel consumption by 30%. In 1970, Turbofan 5 completed ground testing, and its performance in all aspects fully met the requirements. Although there was still a gap compared with the world''s advanced level, it was a successful first step. However, in 1973, because the Air Force gave up its plan to continue improving the H-5, the already highly completed turbofan 5 project was also discontinued. ?The Turbofan 6 project, which was initiated slightly later than the Turbofan 5, also had a bumpy journey. After four launches, four shutdowns, five changes in design goals and design location changes, it finally came to nothing with the J-9 project. The turbojet 14 "Kunlun" supporting the August 3rd Project is the first Chinese aircraft engine to have completed its own design, trial production, testing, and successful installation and flight test. It is also the first aircraft engine with completely independent intellectual property rights. . Although the performance of this engine is average in all aspects, everyone has feelings for such a "single seedling" of the aviation power system. ??If you choose to use the old model at this juncture, even if it is only temporary, it will definitely have an adverse impact on the Turbojet 14, which has finally reached the test flight process. So at the end of the meeting, Yang Fenghao decided to let the inlet professional team and representatives from the 606 Institute go to Yan Liang first to look for ideas to solve the problem. The 03 prototypes that had just moved over and the ones that had passed before The 01 prototype aircraft is undergoing frequent test flights there and can provide more data. Other groups are cooperating with Factory 112 to complete the production of 05 prototypes as quickly as possible. Throughout the second half of the meeting, Chang Haonan was thinking about his next plan. ?He returned to Shengjing early this time just to verify the design of the turbojet 14 engine, especially the compressor structure. If you want to continue to promote the progress of the 83rd Project, the engine must be an unavoidable part. ?Furthermore, if the progress of the Turbojet 14 can be straightened out, it will be a good start for China''s aerospace industry. No matter what you do, you need positive incentives. Just like when you are studying, if there is a progress bar, if you can increase your score by a few tenths of a percent by reading a book and doing questions, then the number of good students will probably be much greater. So first use the fastest speed to create a usable finished product. Even if the performance is not bright, it will produce good feedback. ?This hard nut must be broken down! So after the meeting, Chang Haonan directly found Yang Fenghao. The latter was discussing something with a solemn-looking middle-aged man. Hey, Xiao Chang. ??Yang Fenghao noticed Chang Haonan who was walking towards him, then patted the other person opposite him and introduced: Here, Lao Yan, this is the Xiao Chang I told you just now, Chang Haonan. ?After hearing Chang Haonan''s name, the man immediately turned his head and looked him up and down: Comrade Xiao Chang, I heard Mr. Yang say before that the technical improvement of the 83rd Project was directed by a young man in his early twenties. Today I finally saw him in person! ?The other party took the initiative to shake hands with Chang Haonan, but the expression on his face was still very ugly. At this time, Yang Fenghao spoke to Chang Haonan again: This is Yan Zhongcheng, the leader of the power joint research team of our August 3rd Project and the chief designer of the turbojet 14 engine. Chang Haonan suddenly realized. ? Judging from the current progress of the 83rd Project, Yan Zhongcheng, as the general person in charge of the power system, is indeed facing a lot of pressure. Hello, Yan Gong, I have admired your name for a long time. ?Chang Haonan had certainly heard of Yan Zhongchengs name before he was reborn. Although the Turbojet 14 developed by him was not successful in the original timeline, the QD128 gas turbine for power generation developed on its basis has successfully entered the marketization stage and was even successfully exported. It can be regarded as a success in another field. After the three of them exchanged pleasantries, Yang Fenghao changed the subject and said to Chang Haonan: I remember when we first met at Beijing Airlines, you mentioned that the theoretical principles of fluid mechanics and the engineering methods of computational simulation are universal, and you are also conducting research in related fields of compressor blade design and manufacturing. So Lao Yan and I were talking just now about transferring you to the Power Joint Research Team to do some work with Institute 606. What do you think? What are your opinions? ?Of course I have no opinion. It would be better to say that Chang Haonan was just thinking about how to open this conversation with Yang Fenghao, but now he no longer has to worry about it. ?Hence, he agreed to the arrangement almost without hesitation, and his decisiveness surprised Yan Zhongcheng next to him. The latter looked at Chang Haonan again, who was standing upright in front of him, and said in a solemn tone: "Xiao Chang, before making a decision, I still have to give you a vaccination first." "The Turbojet 14 is our country''s first complete attempt to develop an aero-engine model from scratch. The foundation in this area is weaker than the fields you have been engaged in before, and there are more difficulties, and... you may also face life dangers. , so I hope your decision is well thought out." In fact, Yan Zhongcheng himself almost died in an engine test accident, so this risk to his life is definitely not a threat. "Well, the joint power research team is expected to decide on the candidates to go to Yan Liang the day after tomorrow. You can give me the final answer at that time." ?Chang Haonan originally wanted to express his position directly, but after looking at the other party''s expression, he did not speak in the end and just nodded. Yan Zhongcheng was obviously worried that he would make impulsive choices and underestimate the difficulties he would face, which would lead to some emotions appearing later. This situation can be said to be not uncommon. Instead of wasting words and explanations, it is better to wait for two days so that the other party can feel at ease. Okay, Ill think about it. The first order should have exceeded 2,500, and it will continue to increase day by day tomorrow. (End of this chapter) Chapter 82 engine failure Chapter 82 Engine Failure ?Chang Haonan did not really need to wait for two days. Because at the same time that the work coordination meeting was held in Shengjing, something happened to Yan Liang. The time goes back to half an hour ago. ? Test pilot Lin Tingguang is flying the No. 01 prototype of the J-8-3 for the planned high-altitude and high-speed test flight project. Although the subsequent two full-state prototypes No. 04 and 05 will be equipped with new wings, this does not mean that the test flight data of the two non-full-state prototypes No. 01 and 03 are meaningless. In fact, unless the overall design is completely overturned like the Su-27 prototype T10, even if there is a change in the aircraft design, it will only be necessary to use a new prototype to supplement some related subjects. Even if the change seems obvious. ?For example, the No. 01 and No. 03 prototypes of the FC1 Xiaolong fighter jet still use the boundary layer baffle inlet. Only from No. 04 did they switch to the DSI inlet. ??Another example is that the six ribs above the air inlets of the J-10 No. 01 and No. 03 prototypes really only serve as structural reinforcements, but the arrangement was adjusted on the mass-produced models to increase the spoiler effect. ?The content that Lin Tingguang wants to test today has nothing to do with the wings, but to find the ultimate flight envelope under the current matching design of the flight engine Like all other equipment, the worse the working condition of the engine, the more likely it is to malfunction. When the working conditions reach a certain critical value, the failure rate becomes unacceptable. The level of this critical value also determines the performance of the engine. But like all other equipment, there is often a difference between the paper performance of an engine determined during design and its actual performance after it is manufactured and installed on the aircraft. For some engines with better stability, such as F110 or F404, the difference between the two will not be too big for the time being. But for some engines with poor stability, such as the TF30 or the early F100, paper performance has almost no reference value. And the performance of the same engine installed on different aircraft is sometimes very different. TF30 performs well when installed on the F111, but is a complete disaster when installed on the F14. So it is necessary for the flight test team to accurately determine where the actual limits of the engine are. On the one hand, it is to let the pilots of combat units know how to ensure that the aircraft is in normal working condition and reduce the accident rate. On the other hand, it also produces enough data and gives it to the engine design and production units so that they can make more targeted improvements. The turbojet 14, at least the current technical state of the turbojet 14, is undoubtedly the latter engine with poor stability. So the test flight work requires even more care. In the cockpit of prototype No. 01, Lin Tingguang pushed the throttle lever with his left hand gently, watching with his eyes as the flight speed on the HUD slowly exceeded Mach 1.8. This is the speed he needs to maintain for the rest of the test flight. Preparing for a yaw maneuver test flight. The voice of the tower commander came from the earphones. Received, yaw maneuver test flight. ?After Lin Tingguang repeated the command, he began to use his hands and feet together, carefully coordinating the control amount of the stick and rudder, so that the aircraft gradually began to enter a sideslip state. Began to enter a sideslip. Lin Tingguang took a deep breath and reported to the tower. Every second that follows feels like a century. Flight conditions with sideslip angle have exceeded the adjustment range of the adjustable sloping plate air intake, so the intake air flow distortion is very serious, especially testing the stability and reliability of the engine. Strictly speaking, this is a posture that should be avoided during normal flight. But just like subjects such as stalling and spin, "abnormal" flight is inherently normal for the special group of test pilots. ?Under the control of Lin Tingguang, the No. 01 verification aircraft successfully maintained a side-sliding flight attitude for more than ten seconds, and then smoothly leveled off. During this period, everything was normal. Very good, the subject is completed, prepare to return. Please note that there is a strong crosswind in your current flying airspace. ?The tower commanders voice also became noticeably more relaxed. The most dangerous part of this test flight has been completed. Received, ready to return. ?Lin Tingguang in the cabin also breathed a sigh of relief, and at the same time began to slowly close the throttle, controlling the speed of the aircraft to slowly decrease to Mach 1.1. However, just when everyone thought they were done, he suddenly heard a "bang" sound coming from the right air intake, and then the right engine speed dropped sharply, and the shaking feeling in the cockpit became violent. The right engine failed and lost thrust. Although he faced an aircraft malfunction at a high speed, long-term training allowed Lin Tingguang to calmly report the current problem and start thinking about troubleshooting. He slowly and almost subconsciously closed the throttle, then adjusted the aircraft''s attitude to turn left and descend, aiming in the direction of the airport runway. If it is just an ordinary engine that stops in the air, it still has enough speed. As long as the airflow drives the engine speed again, it should not be difficult to recover. ?However, soon, a warning about the abnormal temperature of the right engine stopped him from restarting the engine in the air. There is definitely something wrong. An engine that has been damaged is definitely not expected to be restarted. ?Lin Tingguang looked at the altimeter that kept falling, his brain running rapidly, constantly thinking about the current situation he was facing. In the headset, the tower has even given instructions to allow parachuting. Although the J-8-3 aircraft has two engines, if a fire occurs in one engine, it is likely to affect the other engine, or even disintegrate in the air. tragedy. The pilot will not be held responsible for parachuting at this time. ??But as a test pilot, Lin Tingguang was unwilling to give up. In addition to saving the aircraft itself, the fault data generated by this test flight is also very valuable. If it can be brought back intact, it will be of great help to the next improvement work. So he hesitated for a few seconds. ?It was in these few seconds that Lin Tingguang discovered that as he gradually closed the throttle and stopped supplying fuel to the engine, the temperature of the right engine was being controlled. And he still has a certain altitude. If handled properly, it is entirely possible to return to the airport and land. No. 01 is preparing to return to the airport for landing. ?This sentence implies the risk of sacrifice at any time, but Lin Tingguang''s tone seemed as if he was just describing what he had for breakfast. The commander in the tower narrowed his eyes slightly and opened his mouth several times, but in the end he did not speak to affect the pilot''s judgment. He just asked the emergency response team to prepare to set up a blocking net and prepare fire trucks and ambulances to deal with possible emergencies. Affection. The aircrafts hydraulic system failed, but the landing gear was extended. The good news is that the loss of hydraulic pressure means that it will become extremely difficult to control various rudder surfaces, but lowering the landing gear at least means that as long as the aircraft touches the ground, safety can basically be guaranteed. (End of this chapter) Chapter 83 Rush to Yan Liang Chapter 83 Rushing to Yan Liang Not long after, prototype No. 01 finally appeared in the sight of everyone at the tower. ?Through a high-powered telescope, the commander could see that the right fuselage of the aircraft had been deformed, and the tail nozzle of the right engine was also severely damaged. However, there was no structural damage visible to the naked eye on the inlet part, so it is unlikely that the accident was caused by a bird strike. The altitude is 120, the speed is 427, the visual condition of the tower is good, the attitude of the aircraft is stable, but the descent rate and approach speed are slightly faster. ?Lin Tingguang used all his strength to pull the control stick and pull the aircraft out of a shallow dive. Since the descent rate and landing speed cannot be guaranteed at the last moment, he must let the thicker rear landing gear land first, even though this may face some risk of stalling. At this moment, Lin Tingguang only had the runway and his plane left in his world, and nothing else. Even the sound of the tower commander reporting flight data in the headphones gradually became blurred. ?At the moment when the plane was about to land with the last few meters in altitude, Lin Tingguang opened the plane''s parachute in mid-air. The wheel made contact with the runway and a burst of white smoke rose up. ?Opening an umbrella in the air at the last moment before landing is a trick that the Soviet instructor taught Lin Tingguang when he was learning to fly the Su-27, but he had never tried it on other aircraft before. ??But anyhow, this risky move dropped his landing speed to a safe range and allowed him to use almost the entire length of the runway. In the end, the No. 01 prototype came to a halt dozens of meters in front of the already deployed blocking net. ??The emergency response brigade, which had been on standby for a long time, also rushed forward. The fire truck began spraying water on the right engine, which was still smoking slightly. The rescue team opened the cockpit cover from the outside and lifted Lin Tingguang out of the cockpit. "I''m fine, I can walk on my own..." Lin Tingguang took off his flight helmet and tried to stand up, but in the end he was thrown directly onto the stretcher. However, judging from his voice and the intensity of his struggle, he should be fine. ??The tower, which had been filled with a heavy atmosphere just now, instantly burst into cheers. For the flight department personnel, saving the aircraft is worth celebrating. The news that a dangerous situation occurred during the test flight, resulting in the final emergency landing of the No. 01 prototype, quickly spread to Shengjing. Just as the work coordination meeting had just ended, Yan Zhongcheng said that Chang Haonan would be given two days to think about the final decision. When the three people heard the news, the expressions on their faces were stagnant. ?Especially Yan Zhongcheng, he closed his eyes in pain. Although there has not yet been a final determination of the cause of the failure, according to the judgment of Yan Liangs test flight commander, the engine should have failed in the air. ? And it is not caused by external reasons such as bird collisions. This was undoubtedly a major blow to him and the entire 606 Institute. A few seconds later, Yan Zhongcheng took a few deep breaths, opened his eyes again, and looked at Chang Haonan next to him. The latter was also looking at him. There shouldnt be two days left for me to think about it slowly. ?Chang Haonans tone was not wavering at all: Lets go to Yanliang together. Yan Zhongcheng nodded slowly. ?Such setbacks have not changed the other party''s mind, so there is no need to worry about anything anymore. That night, more than 20 people, including Yan Zhongcheng and Yang Fenghao, took a Y-7 plane and landed at Yanliang Airport. Prototype No. 01 was towed into the maintenance hangar immediately after landing, and the maintenance staff also completed the ground inspection. Soon, Li Zhengqi, the head of the flight test center, came to Chang Haonan and others with a ground crew member carrying four thick crutches and two horizontal bars. This is Sergeant Major Lin Gang, the most experienced ground service veteran on our side. In 1996, the soldier''s service regulations had not yet been changed. Lin Gang''s military rank was the fourth-grade sergeant major, the highest among the thirteen fourth-grade soldiers. ?Lin Gang saluted, then turned to Prototype 01 and began to report: "According to the preliminary inspection currently conducted, visual inspection of the left engine''s first-stage compressor revealed 13 pieces of damage to varying degrees, and the tie rod connecting the hydraulic actuator rocker arm of the adjustment plate and the rear adjustment plate was broken at the root of the earring bolt; the engine and air intake The road transfer section was misaligned; using a borescope, it was found that the left and right engine splitter rings were torn. " After Lin Gang completed the report, Li Zhengqi added the situation described by the test pilot: The pilot reported that the engine malfunctioned during the afterburner shutdown process after exiting the high surface speed. There was no obvious air pulsation sound from the engine inlet before the malfunction. "When the fault occurred, the aircraft''s surface speed was relatively high, the M number was near 1.1, and the altitude was greater than 2km and less than 6km. The inlet ramp was involved in the work. When the pilot controlled the throttle to decelerate, the aircraft experienced axial impulse and was forced to push for a short time. Throttle phenomenon, the temperature of the right engine rises sharply in the early stage of the failure, and there should be a fire phenomenon. " ifies A sound of breathing came from the crowd. ?Such serious engine damage, if it is not a bird strike, it may only be surge. Simply speaking, surge refers to the reciprocating air flow caused by the separation of compressor air flow, producing high or low amplitude oscillations along the axis of the compressor. By analogy, it is a bit like an engine "coughing", but this kind of cough is extremely contagious. Once surge occurs somewhere in the compressor, it will affect the entire stage or even multiple stages in a short period of time. The blades affect the working condition of the entire compressor and cause irreversible damage to the compressor structure. And if, like this accident, surge occurs during the afterburning process, the compressor can easily generate negative pressure during the "coughing" process, causing the ultra-high temperature gas in the combustion chamber to reversely flow back, eventually destroying the entire engine. . And if the pilot''s handling of the surge is not reasonable and timely enough, the fuel that has not been fully burned in the combustion chamber will be discharged backward, and spontaneous combustion will occur behind the turbine after encountering high-temperature gas, which may burn the entire aircraft. So Lin Tingguang''s emergency decision after the accident was almost perfect, and the entire failed engine was almost completely preserved, which is considered a blessing among misfortunes. After having a hasty dinner, the joint power research team devoted themselves to analyzing and sorting out the test flight data. Among them, people from Institute 606 are responsible for the engine part, while people from Institute 601 are responsible for the intake duct part ??Although judging from the current situation, this accident is not directly related to the airway, the rules and regulations are such that we must not let go of any possible loopholes. For the surge problem, the most important task is naturally to determine the location of the first surge based on test flight data. This is a job that relies heavily on experience, and Chang Haonan knows that he can''t help much. ?But naturally he would not just watch the excitement when he chose to follow Yan Zhongcheng and fly all the way to Yan Liang. So he asked his comrades at the Flight Test Institute for the flight status data before and after the surge accident of the No. 01 prototype. As for the compressor design data of the turbojet 14 engine, thanks to the digital and parametric modeling that has been completed before, I brought it with me when I came from Shengjing. There may be many factors that induce surge, but there is only one fundamental reason, or the essence of surge, which is the flow separation of the airflow on the back of the compressor blades, and this separation increases with the rotation of the compressor impeller. The high-speed rotation develops to the entire cascade passage. Thats right, it happens to be the flow separation problem of turbomachinery that Chang Haonan has been studying before. So he decided to try to calculate the unstable working boundary of the engine while the comrades of the joint power research team were looking for the fault location. There are three more updates to be posted in the afternoon (End of this chapter) Chapter 84 Unstable work line Chapter 84 Unstable Work Line The first and most core step of this task is to find the common working conditions of various components of the turbojet 14 engine and establish a common working equation. This is exactly the part that Chang Haonan probably knows how to do. ?So he found Lin Gang, the person in charge of Yan Liang, borrowed a workstation from the flight test institute, and entered into a selfless working state. Time is everything now. In order to improve efficiency, the system must be used to help. Therefore, the top priority is to clarify the complete solution to the entire problem in order to form a project in the system. ?Thinking of this, Chang Haonan pulled out a piece of draft paper from the side. The calculations related to flow separation in turbomachinery are quite complicated, and it is not his best field, so it is safer to write about it. Directly analyzing the engine component-level mathematical model is definitely not something that computers of this era can accomplish, and it is not necessary. Therefore, the second step should be to reasonably simplify the model. (1) Continuous flow between components ?Chang Haonan wrote down the first principle on paper. (2) Power balance of compressor and wheel on the same shaft..." (3) The rotational speeds of the compressor and turbine on one shaft are equal..." (4) When the tail nozzle is operating subcritically, the static pressure at the far front and at the nozzle exit section is atmospheric pressure. Therefore, the pressure change in the engine flow channel should meet the conditions of balancing the degree of supercharging and expansion..." ?Every time he writes a few pieces of content, Chang Haonan will make an attempt. After he used the fourth piece of paper, the system finally responded: [Technology point consumption for improving the project: 10 points, directly giving project results consumption points: 100 points. Are you sure to carry out the unstable working line calculation project of the turbojet 14 engine? It finally happened ?Chang Haonan slowly took a deep breath. Confirm! Improve the project! The whole night passed quickly. When the morning sun slowly rose from the horizon the next day, the joint power research team, led by Yan Zhongcheng, finally completed the non-dimensionalization of the test flight data and the drawing of the surge waveform curve. The next job is to find the position that first induces the abnormality among the large number of complicated curves. The main significance of this work is twofold. First, it can provide directional guidance for subsequent high-altitude station simulations and try to reproduce the fault. The main purpose is to determine the cause of the surge, whether it is a design flaw, a manufacturing flaw, or simply too poor air intake conditions. Second, if the compressor needs to be improved later, then this surge-inducing position will be the starting point for modification. ?Engine design is of course a matter that affects the whole body, but no matter how complicated the work is, there will always be a starting point. Just like the thread in a ball of wool. Yan Gong, why dont you go and take a rest first? A young engineer looked at Yan Zhongcheng, who was looking at the data carefully and his eyes were red, and asked with concern. The latter held his waist with one hand and held the mouse with the other hand to mark several abnormal operating points on the boost coefficient and flow coefficient diagrams of the compressor, and directly rejected the proposal without looking back. No, at least we have to find out the problem first. It shouldnt take long. For him who is experienced, this work is not particularly difficult. As time passes, the ins and outs of the surge problem are becoming increasingly clear in Yan Zhongchengs mind. You all come here. He waved his hand behind him and called several other engineers who were in the same room with him. By the way, why dont you see Dr. Chang who came with us? Because I stayed up all night processing data, and Chang Haonan was not a member of the power joint research team, it would not be a waste to miss him when working, so it was not until Yan Zhongcheng sent a message to everyone to come over that everyone realized the lack of a person. Yeah, it seems like I havent seen anyone else since last night. You didnt run away to rest by yourself, did you? Forget it, lets go look for him later, and listen to Yan Gongs assignment of tasks first. ??Everyone gathered around Yan Zhongcheng and looked at the enlarged data graph on the CRT monitor. The latter picked up a pencil from the side, gestured on the screen and said: Look, I have separated out the surge oscillation loop. The above O-A, A-B, B-R and R-O are the four stages of the surge process. When external disturbances cause the compression system to enter a surge state, in the first part of O-A, because the pressure rise provided by the compressor cannot balance the pressure established in the rear part, under the action of strong back pressure, the pressure flows through the compressor The gas flow rate drops sharply, but due to the lag in dynamic response, the pressure behind the compressor changes slowly. In some cases, such as when the compressor pressure is relatively high, the instantaneous flow rate of the compressor can be reduced to zero, and even reverse flow occurs. " When the instantaneous flow rate reaches the minimum value at point A, corresponding to the system pressure at the rear of the compressor, since the flow rate flowing in through the compressor is much smaller than the flow rate flowing out through the pressure regulating valve, in the second part of A-B, the flow rate flowing into the compressor The flow continues to increase while the rear pressure gradually decreases. "For the current valve opening, the instantaneous flow rate at point R is undoubtedly too large. That is to say, the pressure rise that the compressor can provide at this time is much smaller than the pressure drop required by the pressure regulating valve for the same flow rate. Therefore, the pressure regulating valve is Under the restriction, the flow rate through the compressor must be reduced again, while the pressure at the rear of the compressor continues to rise, and the instantaneous operating point of the compression system is approaching the original stall starting point O again. " The biggest difficulty of this work is to find and isolate this oscillation ring. Now that Yan Zhongcheng has completed this step, other young people in the joint power research team can naturally understand what he is talking about. Everyone who was a little tired after staying up all night instantly regained their energy. ??The engineer who was the first to notice Chang Haonan''s absence showed an expression of enlightenment: So point O is the initial unstable operating point of the system. We need to find out the earliest position in the compressor that meets the operating conditions shown at this point, which is the earliest surge-inducing point where flow separation occurs? Thats right, so everyone needs to find this location as quickly as possible and let the institute do a breathing test to see if the problem can be reproduced! Yan Zhongcheng threw the pencil on the table next to him and stood up from the chair. For a moment, he suddenly felt a sense of hypoxia coming from his brain, and at the same time, his eyesight went black. This is caused by long-term irregular work and rest, overloaded work, and sudden standing up after sitting for a long time just now. ?However, Yan Zhongcheng used one hand behind his back to support the table in time, so it didn''t show too obviously. In order to divert the attention of others, he forced himself to continue assigning a task: Also, Ill meet with the comrades over at Institute 601 later and bring the flow data of the air inlet for reference. "clear!" (End of this chapter) Chapter 85 The surge position can be calculated! Chapter 85 The surge position can be calculated! After Yan Zhongcheng waved his hand to continue working, the people around him finally dispersed and returned to their working positions. Then he stood there and rested for almost half a minute before he finally recovered from the lack of blood supply just now. ? Yan Zhongcheng took a long breath, then picked up the thermos cup next to him and took a deep sip of strong tea, and then prepared to join his men in the next stage of work. The result is at this time. With the sound of rapid footsteps, a figure rushed in from outside the office. I found it! Yan Zhongcheng, who had just regained his composure, was still thinking a little slowly. He stood there for a few seconds before he realized that the man waving a few pieces of paper was Chang Haonan. ?Others who were immersed in work were also attracted by this sudden sound and turned their heads. What did you find? Chang Haonan took a few breaths before handing the calculation results to Yan Zhongcheng at the table: I calculated the theoretically earliest position where flow separation occurs, which is on the blades of the secondary rotor of the high-pressure compressor! ! ! ?After hearing this sentence, the first reaction of most people in the room was to be confused - Chang Haonan was not with them just now, nor did he take away the test flight data related to the engine. There is no condition for surge analysis at all? Figure it out? Yan Zhongcheng reacted the fastest. He quickly took the pieces of paper from Chang Haonan''s hand and put on the glasses he had just taken off. ?However, he only saw the first page and showed an expression of astonishment. "You...have you forward simulated the process of this surge failure?" Yes. Chang Haonan nodded and continued to explain: According to my calculations, when the accident occurred, flow separation occurred first in the secondary rotor blades of the high-pressure compressor, and then quickly spread to the entire high-pressure compressor, inducing axial low-frequency oscillation of the airflow in the rear combustion chamber and turbine. Finally, it affects the front low-pressure compressor section. Yan Zhongcheng did not answer. He just lowered his head and continued to look at the calculation results in his hands. ?Of course he can understand these things on the paper. In other words, if it were not for a driving monster like Chang Haonan, Yan Zhongcheng would be the person with the deepest understanding of turbine engine performance digital simulation technology in China at this point in time. There is no one. When he was studying in the UK more than ten years ago, he did research in this direction. ??He even developed a modular turbine engine steady-state and transient performance simulation tool with his mentor, which was at the absolute top level at the time and was even used by some research institutions for version updates to this day. However, in China in the early 1980s, there was no foundation in this area at all. Therefore, after Yan Zhongcheng returned to China, he still took over the overall design work of 606 Institute and was unable to continue exploring in the field he was good at. In other words, the reason why he was able to return home so easily was because the other party recognized that his greatest ability was impossible to display in China at that time. Thats why we didnt block it too much. By the time some conditions were finally met in the mid-1990s, Yan Zhongcheng had not been exposed to related technologies for more than ten years. If he wanted to pick them up again, it would be almost like starting from scratch. Nevertheless, his knowledge base is still there after all. So when Yan Zhongcheng saw Chang Haonans simulation calculation ideas, what was once engraved in DNA was instantly inspired. To put it simply, the whole night''s work he led the engineers from the 606th Institute was a backward analysis of the working conditions when the fault occurred, given the known fault symptoms. Chang Haonans simulation uses the flight conditions of the aircraft and the structure of the engine to calculate forward where the weakest part of the compressor is in the process from normal operating state to surge state. ??Although both seem to be able to find the location where surge is induced, the efficiency of the two methods and their help in understanding the root cause of the fault are simply not the same! There was silence in the entire office, except for the sound of Yan Zhongcheng turning papers from time to time. ?About twenty minutes later, he finally read all the contents on the few pages in his hand. The calculation process is perfect. Then only the result verification is left. ?As long as the position calculated by Chang Haonan matches the working condition of point O he found on the oscillation ring, it means that it is the correct answer! ?At this time, Yan Zhongcheng was very glad that he did not relax from work in the past night. Otherwise, if a young newcomer comes up with the results and they dont know anything about it, it would be shameless. Lets put aside the work at hand first and verify whether the working conditions of the secondary rotor of the high-pressure compressor are consistent with the O point we just found! ?After hearing Yan Zhongcheng''s voice, other people in the room just woke up from a dream and quickly returned to work. ??Although they still dont know what Chang Haonan brought, judging from the performance of Yan Zhongcheng on the opposite side, it must be very important in solving this problem. Time passes minute by minute. Yan Zhongchengs heart is very complex. ??If there are no problems with Chang Haonan''s calculation process and results, it will not only be equivalent to finding the problem, but it can even be directly used to guide the subsequent improvement of the engine, so as to eat two fishes. But on the other hand, this also means that the compressor design of the turbojet 14 is flawed. Because if manufacturing defects cause surge, then the results obtained by simulation methods will definitely not be consistent. Given a result to verify, it is essentially equivalent to verifying the answer, and the workload and difficulty of the work are naturally much smaller. Hence Yan Zhongcheng did not wait too long. Yan Gong, we are absolutely right. It is indeed a problem with the secondary high-pressure rotor! ?An engineer pointed at two data curves that almost overlapped on the computer screen and said excitedly. The whole house was in an uproar. Can...really be able to calculate it? So, he went out to find a place to do calculation simulation last night? "Compared to this...he directly analyzed the cause of the fault in just one night. This is the most outrageous..." On the other side, Yan Zhongcheng took a long breath after hearing the result. Its like an exam. While waiting for results, it is often more painful than after knowing that the score is not good. In any case, there is finally a definite result. The next work is to calm down and start preparing to improve the compressor. Xiao Chang, this time, you are really our hero! Yan Zhongcheng held Chang Haonans hand with a tired look on his face: Go and rest first, there is still a lot of work to do later. (End of this chapter) Chapter 86 long range reconnaissance Chapter 86 Long-range reconnaissance Just when Chang Haonan and the joint power research team finally found and verified the cause of the fault overnight. Across the ocean, Robins Air Force Base, Georgia. Colonel Jason Brooke, deputy commander of the 78th Air Base Wing, was holding a paper cup filled with coffee, leaning leisurely on the back of the sofa, looking at his old friend behind the desk at the far end of the room, who is also the commander of the 93rd Air Control Wing. Brigadier General Thomas Stephens. Tom, have you heard? The new Chinese aircraft that looks like a narrow-mouthed bottle had a serious accident during its test flight yesterday. Jason and Thomas were classmates when they were in flight school. In addition, the 78th Air Force Base Wing has a special nature (it does not have an aviation unit, but is responsible for maintaining and operating the entire air base). Therefore, although the two have different military ranks, they have never been above each other. The subordinates looked at each other. New aircraft? You mean the one they gave to Grumman to improve? The 93rd Air Control Wing has been focusing on European missions in the past few decades, so Thomas does not know much about the situation in East Asia. But nearly ten years ago, when he was just an ordinary pilot, he had seen an aircraft that was somewhat similar to the Su-15 at Grumman by chance, so when he heard this sentence from his old classmate I still have some impression after speaking. I think Jason was talking about something else. The speaker was an Army colonel sitting on the other side, Mitchell Schelling. After Grumman sent those two aircraft back, they started a new in-depth improvement project. The internal code name should be Project 83. However, judging from the situation yesterday, the progress was obviously not smooth. ? Jason picked up the cup and took a sip of coffee: A cousin of mine who works in the Defense Intelligence Agency told me yesterday at the bar that someone saw an engine of the plane spraying fire in mid-air. It was probably an engine accident, and it was very serious. Still that, such a thing like the aircraft was unable to hide it. And the noise made by Prototype No. 01 yesterday was actually a bit too big. This is not surprising. I have seen that kind of aircraft by chance before, at Factory 42 in California. Although I only saw it from a distance, I have to say... it is very rough. Thomas said as he took out a box of cigars from the drawer, took one out, and carefully trimmed it with cigar scissors. It seems that after all these years, they have not made much progress. Jason shook his head and replied with a smile. Time can change a lot of things. Thomas slowly burned the cigar on the flame of a butane lighter, then put it to his mouth and took a puff: But time alone cannot teach a monkey to use tools. Okay, I admit that your metaphor is very appropriate... "Ha ha ha ha" The happy laughter of three people rang out in the office. After a while, Jason, who calmed down again, continued: "But having said that, although their own aircraft pose no threat to us, those Flankers bought from the Russians are another matter. They have a long range and are very maneuverable. They may be a threat to the humble people. trouble." "The flanker is indeed a powerful opponent, but only in the hands of the Russians themselves." Thomas put the cigar in his hand again and watched the light blue smoke curling up: "I have seen the navy According to the report given by the Intelligence Bureau after the confrontation at the beginning of this year, the Chinese Air Force has no experience in operating third-generation fighter jets. Their pilot skills are immature, and their dispatch rate is also very low. Many maintenance tasks even require the Russian side to send personnel. conduct." ?Hearing what Thomas said, Jason raised his head and thought for a few seconds: "You may be right, but even if only one aircraft is dispatched, the Flanker''s range is enough to follow any aircraft of the 93rd Wing throughout the entire journey, making it impossible for you to perform your mission well." As for the voyage, there is actually no need to worry. Colonel Mitchell, who had not spoken for a while, cleared his throat and then explained: "According to intelligence obtained through satellite reconnaissance and some special means, the Su-27''s oil and electricity equipment and other support systems are completely incompatible with the original facilities of the Chinese Air Force. They currently only have one battalion-level service equipped with all Russian equipment at Suixi Airport in Guangdong Province. The support team, in other words, those flankers cannot operate away from this airport, and our main mission area is to the east, and there are only some imitation MiG-21s with short range in this direction. Compared to the mere 40 Flankers, the top brass is more worried about the dozen or so S300 anti-aircraft missile battalions deployed near the eastern coastline, Thomas put the cigar in his hand on the lid of the box, waited for it to go out naturally, then raised his head and looked at the two old friends: In the past few years, we have obtained several sets for testing through the CIS countries, but what China has in hand is an updated version after major changes. The evaluation results...at least it will not be weaker than the Patriot PAC2. No weaker than patriots Doesnt this statement sound like a threat? ? Jason''s cold joke was not very clever, but it still made Thomas and Mitchell laugh. All three of them participated in the Gulf War and are very aware of the amount of water contained in Raytheon''s propaganda about the Patriot missile. Most of the Patriots'' provable results during the entire war were accidentally shooting down the coalition''s own aircraft. The most they shot down were 3 F16s and 2 Tornados in one week. Correspondingly, many coalition pilots will not hesitate to launch missiles to destroy their own patriots after being targeted. ? Thomas, who had a higher military rank, was the first to regain his serious expression: "No joke, we tested the oldest S300PT. Aircraft such as A6 and F15 are very threatening within a range of 60-70 kilometers, and the improved model sold to China by the Russians can double the range. The kill envelope even exceeds that of our Ham missile." The AGM88 "HAM" anti-radiation missile is specially used to attack enemy radar facilities. The combination of EA6B or EF111 and AGM88 is the most powerful weapon for the US Navy/Air Force to break through the imaginary enemy air defense network. ??And a weapon that can pose a threat to carrier aircraft beyond the range of Hamm will undoubtedly arouse the vigilance of the US military. Yes, this is why the Joint Chiefs of Staff requested to send the latest reconnaissance aircraft that have just entered service to Kadena. We need to conduct reconnaissance on the anti-aircraft missile sites deployed around the capital and Shanghai. ?Colonel Mitchell stood up and looked at a brand new four-engine large jet on the tarmac not far away through the huge floor-to-ceiling window in front of him. ?The E8C "Joint Surveillance Target Attack Radar System" developed on the Boeing 707 passenger aircraft platform has just been officially put into service in June this year. It is also the only model in the US military that is dedicated to ground reconnaissance. ?The long strip radar located under its belly can detect and track vehicle-sized ground targets more than 150 kilometers away. For a long time to come, it will be the most advanced ground target surveillance aircraft in the world. In fact, Mitchell, who is an Army officer, appears here precisely because of this E8C. After all, this model was jointly developed and used by the Army and the Air Force. "Well, I wish you all the best. I have to arrange for manpower to serve the most advanced baby." ? Jason drank the last bit of coffee in the cup, threw the paper cup into the trash can nearby, then stood up, straightened his clothes, and left Thomas'' office. (End of this chapter) Chapter 87 aviation power issues Chapter 87 Problems with Aviation Power On the other side, Hao Jing and Yan Liang. After completing the analysis of the engine surge failure, Chang Haonan finally made time to rest for a few hours. ? There are still some comrades in the power joint research team who are inspecting and analyzing the damage to the No. 01 prototype to confirm the specific impact of the failure and eliminate other possible causes of the accident. It is estimated that it will have to wait until tomorrow morning. ?Of course Chang Haonan does not need to complete this job. ?But his task is far from over. Finding the problem is, after all, only the first step in a long journey of thousands of miles. The key is to solve the problem. Although both the compressor of the turbojet engine and the air-conditioning fan he studied before can be classified as "turbine machinery", the difference between them is similar to that of the Pilot 1 and An-225, which also belong to the "aircraft" category. After dinner, Chang Haonan took a walk around Yan Liang''s factory while thinking about the next plan. Since he has a work permit from the August 3rd Project on his chest, he can naturally move freely throughout the entire site. Only a few buildings or rooms require additional permissions, and normal walking is obviously impossible and there is no need to go to such places. . So along the way, Chang Haonan''s thinking was completely focused on aeroengines. The traditional idea of ??steady wall flow pattern has been used in the current impeller machinery design system. Once the flow separation caused by the airflow expansion flow in the compressor occurs, it is no longer within the scope of the above flow pattern. Since conditions other than wall flow have not been considered from the beginning, it is almost inevitable that the flow will be turbulent or out of control under non-design conditions. From this perspective, the most direct and effective way is to increase the stall margin and delay the occurrence of flow separation by changing the blade design. Especially the turbojet 14 is an existing design. If modifications are to be made, the original design ideas must be retained. ?After a period of research on swept blades, Chang Haonan is confident that this problem can be solved quickly. As long as the efficiency of the 410 factory responsible for engine manufacturing can keep up, it will not have a particularly significant impact on the progress of the Eighth-Three Project. But for the Chinese Air Force, which is about to enter the third-generation aircraft era, the Turbojet 14 can only be a transition after all. It cannot hold up the future sky of a great country. ?Chang Haonan''s thoughts flew to further places involuntarily. J-10 and J-11, both third-generation aircraft have the same target power. Turbofan10. But he borrowed a popular joke on the Internet before he was reborn. Is the 1996 Turbofan 10 coming? Tathagata. It is truly the Tathagata. ?At this time, nearly 10 years have passed since the establishment of the Turbofan 10 project, but what about the progress of the project itself... Basically there is no progress. Or Schr?dinger''s progress. The turbofan 10 project established in 1987 and the turbojet 14 were developed almost simultaneously. With no experience in engine design, even second-generation engines such as the turbojet 14 have obvious traces of patchwork and reference, let alone the case of the turbofan 10. Although the design goals have not been changed and the design location has been changed as many times as the Turbofan 6, it is inevitable to overthrow and restart the overall design plan many times. Even the original plan that was used for reference was changed midway. At this time, the Turbofan 10 should be in the process of a certain design plan being reset to zero. Actually, this is quite normal. The steady wall flow pattern mentioned earlier has its limits after all. On this theoretical basis, it is almost impossible to design a compressor with high pressure ratio and high load. Because flow separation itself has two sides. Chang Haonan once again thought about the field of aircraft design that he was more familiar with and experienced. About twenty years ago, the design idea of ??aerodynamic distribution of aircraft shape crossed from "steady attached flow pattern" to "steady/detached vortex mixed flow pattern". That is, from suppressing flow separation to utilizing flow separation Intentionally creating a high-angle-of-attack decoupling flow pattern for the aircraft, and using the concentrated vortices generated by flow separation to obtain additional vortex lift. This not only greatly increases the lift of the wing, but also greatly expands the range of the wing''s angle-of-attack, making the aircraft''s performance unprecedented. A leap. It is reflected in the products that fighter jets evolve from second-generation aircraft to third-generation aircraft. Can this idea be introduced into the aerodynamic design of the compressor? ?This idea jumped into Chang Haonan''s mind almost without warning. Of course, its difficult. Because it is necessary to fully understand the flow inside the cascade, especially the rules of separation flow. A common path taken by scientific research is from complexity to simplicity, and then from simplicity to complexity. First, abstract the specific natural phenomenon into a simpler model, and obtain a basic understanding after conducting research. Then gradually cancel the assumptions made, modify and expand on the basis of the basic understanding, until finally the answer to the complex specific phenomenon is obtained. Get the full picture. Typical examples are from Newtonian classical mechanics and Maxwellian classical electromagnetism to relativity and quantum mechanics. As for boundary layer flow, we have just completed the from complex to simple stage. In terms of numerical simulation, it can probably only achieve two-dimensional steady calculations, and there is even some distance from quasi-three-dimensional calculations. Chang Haonan''s brain felt a little swollen when he thought of this vast amount of knowledge. ?Before he was reborn, he was not a powerful person. He only knew a lot of things but didn''t know why. The above mentioned are only issues in the field of aircraft engine compressor design. ?In addition, there are combustion chambers, turbines, fans, bearings, tail nozzles... After the design is completed, it must be implemented into manufacturing. The system''s capabilities are undoubtedly powerful, but there are two limitations. One is the need for points, and the other is that one needs to have a certain theoretical foundation first and complete the basic idea framework before the project can be formed. ?Although at the beginning of his rebirth, Chang Haonan had already realized that his own strength alone was completely insufficient. But he still underestimated how quickly the pressure would come. ? ?Chang Haonan let out a long breath. There still has to be a team, and it must be a team with me as the main player. ??In addition to the "output" process of promoting the new models and new theories he has developed, he also needs an "input" process. That is, let others be responsible for constructing the basic thinking framework, or at least provide him with sufficient theoretical knowledge. Opening the system panel, Chang Haonan shook his head mockingly when looking at the person with only level 1 engineering experience. Before rebirth, I only took on small projects with no more than 4 people including myself. After being reborn, I have only taken along a few people like Lin Shikuan so far. There is progress, but not enough. ?Thinking of this, he stopped and prepared to walk back. ?The current work of improving the turbojet 14 seems to be a good opportunity. (End of this chapter) Chapter 88 The rapid progress of MA60 Chapter 88 The rapid progress of Xinzhou 60 Just when Chang Haonan turned around, a buzzing sound suddenly came from a distance. It is not the high-frequency whistling sound of a turbofan engine. He subconsciously turned around and saw a small black dot slowly descending from the horizon. Yanliang Airport is used for the 603 in addition to the test flight institute. Except for the Y-7 they took when they came here before, there are very few "normal" models appearing here. Curiosity made him stop and watch. ?The plane''s approach speed was not slow, and Chang Haonan''s eyesight was not bad when he was young, so it didn''t take long for him to see the twin-propeller plane. At first glance, the appearance is not much different from the Y-7 they rode that day, but it is not painted, so it is obviously not a mass-produced aircraft. ?Because of the setting sun, Chang Haonan raised his hand to block the dazzling light and squinted his eyes slightly. Then he saw that the plane was equipped with a pair of wings that he was very familiar with. He said he was familiar with it, but he had never actually seen it with his own eyes before. Even on the design drawings, he had only seen it for a day. But to some extent, it was that day that gave him the opportunity to participate in the August 3rd Project. ?Although the wing design itself was not made by him. Thats right, this should be a MA60. but Why is there an unpainted MA60? ?Chang Haonan smoothed his hair, his legs began to move almost involuntarily, and he walked towards the test flight site over there. ?According to his memory, during the entire airworthiness test flight process, there was only one demonstration aircraft of the MA-60 in flying condition, and that aircraft was painted with a very distinctive painting. ??When the plane''s wheels touched the ground and made a "squeak" sound, Chang Haonan also crossed a bush and saw the situation inside the airport. A group of people are standing on the tarmac. As the plane slowed down the runway and onto the taxiway, he heard a cheer from the crowd. ?Looking at the posture, it looks similar to when the No. 04 prototype of the J-8-3 made its first successful flight a few days ago, but the scale is much smaller. After all, the weight of Xinzhou 60 is far inferior to that of the 83rd Project. Relying on the certificate he carried, Chang Haonan successfully entered the test flight area. There are no big names here, so there are only normal confidentiality requirements and no additional security requirements. Chang Haonans current confidentiality level is high enough. He lingered around the tarmac for a while, watching the plane taxi to the tarmac before the test pilot received a hero''s welcome. Originally, as an outsider, he should have left after watching here for a while. But among the crowd that was dispersing after the welcome ceremony, a very familiar figure to Chang Haonan appeared. Chang Haonan? "Uh...Professor Liu?" Chang Haonan touched his nose and looked at the person in front of him who was walking towards him with the same surprised look on his face: "What a coincidence, you are here too?" The visitor is naturally Liu Hongbo. They are all students of Mr. Du, just call me senior brother. Liu Hongbo waved his hand: You should know that our team is responsible for the design of this models engine nacelle, so I was also called here for the first flight ceremony. At the beginning, Chang Haonan actually wanted to say that he didnt know, but his focus was quickly shifted to the keywords in the second half of the sentence. Okay, Senior Brother Liu, but did you just say first flight? ?Theoretically, the first takeoff of every aircraft after leaving the factory can be regarded as its first flight, but Chang Haonan knew that the other party probably did not mean this. ?Just when Liu Hongbo was about to open his mouth to explain, a tall and thin old man walked behind him. "Hong Bo, this is..." Chang Haonan''s work ID card is still hanging on his chest, but the font on it is not obvious. General Engineer Yi, this is Chang Haonan, a student of Academician Du. Within the aviation system, Yi Yuanhe''s name is not as well-known as Song Wenchong, Yang Wei, Sun Cong or Luo Yang. In fact, Chang Haonan had not paid attention to who the chief engineer of the MA60 was before his rebirth, so he spent about It took half a second to search the other party''s name from memory. ?That was the day he completed the wing flutter analysis, and Du Yishan said he was going to find one of the two people in Haojing. ?But before Chang Haonan was about to speak, Liu Hongbo turned around and introduced: This is Yi Yuan and Chief Engineer Yi, the person in charge of the Xinzhou 60 project. Its interesting to say that although Chang Haonan helped the entire project team solve one of the biggest issues, and although Yi Yuanhe declared Chang Haonan as the first person to complete the advanced technological achievements, the two had never met before. Hello, Mr. Yi. Comrade Chang Haonan. Yi Yuanhe came up and held Chang Haonan''s hand. He really didnt expect that the other party would be so young. Therefore, after a long silence, he spoke again: "Although this is the first time we have met, you should be considered as the most important contributor to the fact that the MA60 project has come to this day." ?This first sentence made Chang Haonan feel a little embarrassed. You are too complimentary and have only made some small contribution. ? He ??is not a person who is shy about admitting his credit. The reason why MA-60 can be equipped with this more advanced new wing is indeed because of his precise calculations and a set of active control laws that can greatly increase the vibration speed. But compared to the entire project, he really cannot say that he deserves the most credit. There is still a big gap between giving a control rate and designing a flight control system. ?Perhaps he can be worthy of this kind of evaluation in the August 3rd Project or any subsequent projects. Looking at the young face in front of him, Yi Yuanhe smiled slightly: Young people dont need to be so modest. Although you didnt design anything for this aircraft, your precise calculations made the whole project come alive. As he spoke, he looked back at the plane that had just stopped for a short time. After the pilot left, a group of engineers began to go up and record the flight data. ? Even if there are not many subjects in the real first flight, even a little more flight data is valuable. "Well?" "The MA-60 is the first aircraft in the world to use fused winglets. Compared with traditional single-piece winglets, it has better effects and is more difficult to design." Yi Yuanhe said with a hint of tone. With a little pride: Our engineers completed this design independently, but if it werent for you, it would not be installed on the aircraft. So, you built a new verification aircraft? No, that verification aircraft had been put on a new wing for test flight more than a month ago. Yi Yuanhe shook his head: This is the No. 01 prototype of the MA-60. The verification machine and the prototype machine may sound similar, but they have completely different tasks. ?Some projects are even subdivided into technical demonstrator, engineering demonstrator and prototype machine. ? By analogy with the automobile industry, a demonstrator is equivalent to a concept car and a prototype is equivalent to a prototype car. Because of the demonstrator aircraft after the wing was replaced, we directly received an investment and an order for 8 aircraft from Beijiang Airlines, as well as an intention to cooperate from the Italian company AgustaWestland. !! Brothers, Im really tired. Ill take a day off after two chapters, and Ill update the new helmsman tomorrow. (End of this chapter) Chapter 89 italian olive branch Chapter 89 The Italians Olive Branch ?In the original timeline, Beijiang Airlines did establish a fleet of propeller regional passenger aircraft, but it used ATR42. ? MA-60, which is mainly of original design, is indeed an aircraft with no merits, and it was already in the 21st century when it was actually put into operation. In the end, it didnt even have a drink of soup. ?But the point is not the order for these eight aircraft, but the olive branch extended by the Italians. This is likely to be a huge opportunity for Chinas civil aviation industry. "Agusta Company?" Chang Haonan was stunned: "They are not...helicopters..." This was indeed the case in the past, but judging from the conditions they offered, they were very sincere and it didnt seem like there was anything fishy. ?Yi Yuanhe, Liu Hongbo and Chang Haonan were walking near the tarmac. The setting sun stretched their shadows. After analysis by the head office, I think they may want to use this opportunity to enter the Chinese market. The performance of their products is even better than that of Eurocopter, but its just the cost, tsk tsk The cost problem may not be impossible to solve. Liu Hongbo, who was walking on the other side, said while arranging his clothes: After all, they are directly negotiating with China Aviation Industry Corporation. If they can have a production line... ??While the other two people were discussing the helicopter production line, Chang Haonan raised his head slightly and recalled it. ?AgustaWestland, before his rebirth, was already called AgustaWestland. It was an Italian company mainly engaged in the design and manufacture of various helicopters. Representative models such as AW109 and AW139 will be the absolute main force in Chinas police helicopter series in the future. At this time in 1996, this company should be considering a merger with the British company Westland. It was this merger that changed the company''s product prefix from "A" to "AW". ?However, from the perspective of hindsight, this Italian-British cooperation cannot be considered a very successful one. After lengthy negotiations, the two companies reached an agreement in 2001, but the joint operation only lasted three years. By 2004, all the shares of AgustaWestland were re-bought by the Italians at a high price. Went back. ??Since then it has been operating under the Finmeccanica Group. "etc" ?Thinking of this, Chang Haonan seemed to have found some clues. MA-60 is a 40-60-seat propeller regional airliner. This market segment is not currently large, so there are very few players in it. The most important model, the ATR42, was jointly developed by Italy and France. The participant on the Italian side is Alenia Aerospace. ??It is also one of the subsidiaries of Finmeccanica Group. Everything seemed to become clear. Speaking of which, what are the conditions for AgustaWestland? Will it jointly develop with us? "Yes, but the overall design of the MA-60 has been basically finalized, so they will only provide some help in aircraft manufacturing technology and aviation materials, and will also inject a sum of research and development funds. This is also the part that the head office is more interested in. ." Yi Yuanhe nodded. There is no way. At this time, China''s economy can only be considered to have just entered a rising period. To put it nicely, there is a lot of room for improvement. Therefore, funds for low-priority projects like MA-60 are quite tight. They...didnt ask to participate in other aspects of the design? Other aspects? Yi Yuanhe was stunned when he heard this question, and then he guessed the meaning of the other party''s words: "Are you worried that your technology on the wing will be stolen?" "Well..." Chang Haonan lowered his head and thought for a moment: "Well, I''m mainly analyzing what they want." "You don''t have to worry about this. Don''t say that they didn''t ask for such a request at all. Even if they did, we wouldn''t Maybe I agree." Yi Yuanhe chuckled and waved his hand: China Aviation Industry only has such a unique skill at the moment. Mr. Liang and the others are holding on to it until its too late, unless they can also come up with some equivalent technology to share. ?This idea coincides with that of Chang Haonan. What about the final production, is it joint production or... Build a final assembly line in China and Italy respectively. Except for the core components that each is responsible for, they will be produced in their respective countries. It seems that their ambitions in this field are not small... Hearing this, Chang Haonan roughly understood the purpose of the Italian side. Ambition? You mean our domestic helicopter market? Liu Hongbo is still thinking about helicopters. No, no, no, its not a helicopter, nor is it Chinas domestic market. Chang Haonan shook his head: Finmeccanica Group can be regarded as an Italian state-owned enterprise, and one of its two core companies cooperates with France to develop ATR42, and the other cooperates with us to develop MA60. "Considering that the Saab 2000 in Sweden has very weak competitiveness due to cost and runway requirements, that is to say, in this segment, no country in the world can escape from letting the Italians earn money no matter which model they choose. money." Furthermore, the final assembly of the ATR42 was completed in Toulouse, France, which did not provide many employment opportunities in Italy and had limited help for the development of the industry in Italy. In the 1990s, this information was not very well-informed, so Chang Haonan spent some time at the end to introduce the specific situation of Finmeccanica. After listening, Yi Yuanhe and Liu Hongbo showed expressions of realization almost simultaneously. After all, Italians have other abilities, and their team level is definitely one of the best. "You mean, the other party is very optimistic about the future development of this market segment?" The expression on Yi Yuanhe''s face gradually changed from surprise to joy. In fact, the reason why 40-60-seat regional aircraft were chosen as the starting point of China''s civil aviation industry has nothing to do with any market assessment and user research. It is entirely because in the early 1990s, domestically produced passenger aircraft could be achieved. There is only one Y7 that imitates the An24. There is no choice. So when Yi Yuanhe, the chief engineer, heard the judgment that this market would have great development in the future, he naturally felt unintentional. Yes, especially Southeast Asia and South America, areas where land transportation is inconvenient and navigation distances are relatively short, and some mountainous European countries should also consider it. If thats the case ?Yi Yuanhe lowered his head and paced, rubbing his chin with one hand. This is his habitual action when thinking about problems. Perhaps we should report it to the head office and try our best to promote this international cooperation? At least according to the current conditions proposed by the other party, there is no harm to us. ??As an outsider, it is naturally impossible for Chang Haonan to directly help Yi Yuanhe make any decisions, but he knows very well how to influence the other party. Moreover, if possible, I suggest further accelerating the test flight of MA-60, preferably in time to participate in the Paris Air Show in the middle of next year. (End of this chapter) Chapter 90 Improved turbojet 14! Chapter 90 Improved Turbojet 14! Attending the Paris Air Show? Yi Yuanhe raised his head again and looked at Chang Haonan. ? Paris-Le Bourget International Aerospace Exhibition, the largest, most prestigious and oldest international aerospace exhibition in the world. ??For Chinese aviation people, the Paris Air Show is not unfamiliar. In fact, as early as the 37th Paris Air Show in 1987, the aviation industry sent a delegation to participate. ?However, most of the exhibits are models, and their technical level is relatively backward. Generally speaking, the focus is on participation. Thats right, and its not just participation. If we can reach cooperation with Italy, even if its only in name, then we are fully qualified to apply for a real aircraft flight show. After saying this, Chang Haonan noticed a glimmer of light flashing in Yi Yuanhe''s eyes. Obviously, the other party has been persuaded. Therefore, Chang Haonan continued to pursue the victory: And, if successful, this will be the first time a domestic aircraft performs a flight performance at a large-scale air show, which will be helpful both for obtaining airworthiness certificates from the European Aviation Safety Agency (EASA) and for entering the European market in the future. " Yi Yuanhe''s breathing suddenly became heavier. As an old engineer, he knew very clearly that Chang Haonan was trying to draw a cake. A prototype has just completed its first flight, and he has already planned to seize the European market... ??But knowing that he knew it, Yi Yuanhe couldn''t help but start to seriously think about the possibility that the other party had just said. After all, this cake is so delicious. Looking at the other party''s expression, Chang Haonan knew that he had succeeded. From the beginning of the 1990s until the end of the 2008 Olympic Games, a very important, and even the most important, theme of China''s foreign exchanges was "showing its own image." ?This matter would have felt completely unnecessary in the 2020s before Chang Haonan was reborn, but if we look at the reality at the turn of the century, it is actually very necessary. In this context, it is "the first time" for an aircraft designed and manufactured by China to perform a flight demonstration in a core European city like Paris. It is definitely an achievement that is enough to put Yi Yuanhe, or at least the MA-60 project, in the history books. On the other hand, EASAs airworthiness certificate is even more important. ? Aircraft models that have not obtained airworthiness certificates cannot be registered and operated in the corresponding area. ?However, aircraft manufacturing itself is a highly monopolized and highly protective industry. Whether it is the United States or Europe, they will never let you pass the airworthiness certification casually. After all, these standards themselves are part of the monopoly barriers and cannot be easily broken through. ?Until Chang Haonan traveled across China, there was only one small aircraft in China, the Y-12F, that had been certified by the FAA. As for EASA, there is not even a single approved model. This has greatly affected the commercial performance of ARJ21 and C919. Now, the course of history has been slightly changed because of the existence of Chang Haonan, a butterfly. The original MA60 was completely unable to compete with the ATR42. In 1996, Europe and the United States generally had a relatively dismissive attitude toward China. ?This is not a bad thing to a certain extent, because it is easier to make a fortune quietly and do things that would not be possible in the next twenty years. ?For example, through cooperation with Italy, we can open up the joints of EASA airworthiness certification. ?Even further, promote mutual recognition between the upcoming CAAC airworthiness certification standards and EASA standards. ??If this matter can be successful, then as long as a model is certified by China, it will automatically be deemed to have passed European certification. Almost solves the problem once and for all. After all, as the saying goes, first-rate companies make standards, second-rate companies make brands, and third-rate companies make products. The same thing is actually happening between countries. From Huaxia products, to Huaxia brands to Huaxia standards, it took almost 40 years on the original timeline. Now, Chang Haonan hopes to speed up this process with his help. ?Yi Yuanhe, as an old aviation man, can naturally think of these things. But the matter is big. Although he is the chief engineer of MA-60, he cannot decide matters other than the project. I need to discuss this matter with Comrade Zhou Yonghang. ?Yi Yuanhe stopped: "However, no matter what the outcome is, Comrade Chang Haonan, I think your suggestions are valuable." After finishing speaking, he turned around and walked in the other direction. He tried hard to control his expression to avoid showing his joy and eagerness in front of these young juniors. But the pace that was much lighter than before still exposed his true thoughts. The only two people left walking side by side were Chang Haonan and Liu Hongbo. After Yi Yuanhe left, the two of them didn''t know what to talk about for a while. Xinzhou 60 has just been said, and the nature of the 83rd project is obviously not able to talk like this. Finally, it was Liu Hongbo who took the lead in breaking the silence. Sometimes I feel like you are a monster. He looked up at Chang Haonan and slowly shook his head: "When I met Junior Sister Yao at Teacher Du''s place the year before last, I thought that was almost the limit. As a result..." "Is this..." Chang Haonan smiled slightly: "Thousand-mile horses often exist, but Bole does not always exist." Liu Hongbo''s mood suddenly improved a lot. Perhaps I should apply to take an extra course next semester? ?He thought so. Chang Haonan did not stay in Yanliang for too long. The comrades who inspected the No. 01 prototype moved quickly. The power joint research team flew back to Shengjing again early the next morning, leaving only a few people behind. Take care of some less important follow-up tasks. ??Yang Fenghao did not hold another large-scale meeting this time, but gathered several people, including Chang Haonan and Yan Zhongcheng, in a small conference room. Has the problem been identified? Fine. Yan Zhongcheng nodded: When the engine is operating in a large flow path in the transonic speed range, due to the rapid retraction of the throttle lever, the engines afterburner fuel supply decelerates sharply, resulting in a larger engine drop pressure ratio. The engine severely throttles the high-speed compressed gas at the compressor, and the compressed gas instantly flows up in the form of a shock wave, congesting the inlet flow path and the engine compressor flow path. Abnormal flow separation begins from the secondary high-pressure rotor, and then expands. to the entire compressor, causing the compressor efficiency to decrease rapidly and cause surge. So...is it definitely a design problem? Yes. Yan Zhongcheng nodded with a serious expression. Failure to conduct a complete high-altitude platform test on the ground will eventually bring hidden dangers. Now, the hidden danger has turned into an accident. A long silence followed. I need a serious answer to the next question. Yang Fenghao glanced at the people in front of him like an arrow: Is there still a chance for the turbojet 14 to catch up with the design finalization of the 83rd Project? There was another moment of silence. Although we have found the location where the surge occurs, which is the starting point for the next step of design optimization, according to common sense, I am afraid it will take at least about half a year, unless..." Yan Zhongchengs voice was a little dry, and then he raised his head and glanced at Chang Haonan next to him: I think Comrade Xiao Chang should be able to provide a lot of help. The helmsmans update will be in the afternoon as usual (End of this chapter) Chapter 91 We are all under your command! (Additional update for fhtvbn, the helmsman) Chapter 91 We are all under your command! (Additional update for fhtvbn, the helmsman) ??Yang Fenghao looked at Chang Haonan, who had been bowing his head in thought just now. The latter has been looking at the raw data retrieved from the No. 01 verification machine since he was on the plane. ? He ??wanted to say that in fact, the turbojet 14 should not only face design issues. Because he did a simple calculation last night, and compared it with the flight record data just now, he found that although the compressor structure of the Turbojet 14 has heavy traces of patchwork, the designer obviously knew this, so he still left it at the beginning. Sufficient surge margin. On the general characteristic curve of a compressor, the distance between the common operating line and the surge boundary line is the surge margin of the compressor, which reflects the stable operating range of the compressor. Perhaps due to choosing a more conservative common working line, the turbojet 14 is not bad in this regard. However, when the No. 01 prototype was rapidly recovering oil, the degree of instability in its working state still exceeded the original design threshold, thus inducing surge. ?Of course, from the perspective of surge control, as long as the surge margin is large enough, the occurrence of surge can be avoided. ?Its just that the surge margin is like the human bodys immunity, and the reason that causes the engines extremely unstable working condition that no one knows yet is equivalent to a pathogen. Improving immunity can certainly prevent illness to a certain extent, but it is by no means a permanent solution. If the pathogen cannot be eliminated, the risk will still exist. Furthermore, it is not transparent enough to solve the problem. ?But before he could think of a clue, he heard Yang Fenghaos question: Comrade Xiao Chang, do you have any opinions on the improvement of turbojet 14? ?Chang Haonan did not expect that he would be called so bluntly. It seemed that Yan Zhongcheng was indeed quite anxious. ?So he had to put aside further matters for the time being and solve the immediate problems first. When a persons fever reaches 43C and he is about to become pregnant, the most important thing is to cool down the temperature first, and the root cause can be dealt with later. Well, Teacher Du should have told you before that I have indeed studied the control problem of flow separation inside the turbomachinery. "I have read the research of Professor Wang Zhongqi of Bingcheng University of Technology. The circumferential bending of the blades can well control the secondary flow in the blade channel, thereby controlling the flow separation, so I am planning to start from this aspect, but... something more thorough is needed. The test data is enough. ???Everyone who was sitting around a small conference table just now could not sit still after hearing Chang Haonan''s attitude. They stood up almost at the same time. What about the specific experimental content, and...what preparations do we need? If someone else had said that sentence, it would not have caused such a reaction. After all, the experimental cycle related to compressors is long and costly. The term "sufficient" data generally means that it will take several months or even years. It takes time to gain. But Chang Haonan is different. He has created so many miracles in the past two months that everyone has almost forgotten about the experimental cycle. Chang Haonan, who had one hand on the table, was frightened by the sudden crowd of people. After a brief hesitation, he had no choice but to stand up. So there was a strange scene in the small conference room where a group of people were standing for a meeting. "The current research on the impact mechanism of curved swept blades on improving compressor performance is relatively qualitative, and there are differences in the flow conditions of transonic and supersonic compressors, so I need to use the original design of the turbojet 14 as a basis to conduct research on the curved blades. The accumulation rules of blades and swept blades are studied separately." After obtaining regular results, carry out top forward sweep modification and bottom forward bend modification, change the sweep height and sweep angle, bend height and bend angle to obtain different sweep and bend design solutions, and then select them through numerical simulation. The optimal comprehensive improvement results are applied to the blades of high-pressure compressors. In fact, this idea is similar to the J-7 improved design plan that Chang Haonan made when he first crossed over. They first looked for the rules, then made plans based on the rules, and finally found optimization in the plans. Its just that this time, both the workload and the importance of the work are far greater than before.????So he needs the help of more resources. The first step is to study the rules, and we can speed up the progress through numerical simulation and experiments simultaneously. The third step is the same, but there is no shortcut in the middle step of coming up with a design plan. It requires a lot of manpower and testing. The process also requires the production of physical objects. In this regard, comrades from the 606 Institute and the 410 Factory need to work together. " In fact, it means asking a large group of engineers to complete the work previously completed by Zhou Shuwan and Zhang Man. ?Yang Fenghao looked again at Yan Zhongcheng on the other side, and Zhong Shihong, the technical director of Factory 410. If we follow Comrade Xiao Changs plan, you will need to mobilize some people from your respective units to accept his command. Yan Zhongcheng and Zhong Shihong looked at each other. The two of them have been working in this field for many years, so they naturally know that the division of labor between factories and offices is not an easy task to accomplish, not to mention that Chang Haonan probably has no experience in this field at all. It can be said that most of the engineers in Institute 606 have heard of Chang Haonan. But the skilled workers in Factory 410 are from a completely different system, and they may not necessarily know who Chang Haonan is. Mr. Yang, if we just transfer people to Comrade Xiao Chang, Im afraid the effect will not be very good. So after a brief thought, Zhong Shihong first spoke out about his concerns. ?Mainly because he himself was parachuted into the 410 Factory from outside before, and many management problems were experienced personally. ?A place like a factory is a bit like an army. Workers, like soldiers, may not necessarily have a high level of education, but they have their own internal chain of contempt. Fortunately, Zhong Shihong had a background in welding, and finally relied on a few unique skills to gradually win over the entire factory. ??But looking at Chang Haonan''s fair appearance, he probably didn''t look like he could do such crafts as turning, milling, grinding, boring, forging and welding. What Minister Zhong means is... "I think that in terms of production and manufacturing, it is better for you to take the lead in setting up a research team directly, with you as the team leader, Comrade Xiao Chang as the deputy team leader, and Mr. Yan and I as team members, directly under the command of Comrade Xiao Chang ! "this" Chang Haonan was also shocked by this proposal. He really wanted to make a breakthrough in management capabilities, but this breakthrough seemed a bit too big. ?From being in charge of Lin Shikuans group of 6 people, to being in charge of the 606 Institute and the 410 Factory? Although it is only temporary. I think this method is worth a try. Unexpectedly, Yan Zhongcheng next to him also nodded: "Comrade Chang Haonan is very knowledgeable in numerical simulation of separated flows. I have put aside this aspect for more than ten years, and I just want to pick it up." "I" After hearing the two peoples statements, Yang Fenghao was naturally very happy. He didnt even ask Chang Haonan for his opinion. Instead, he came over and patted him on the shoulder directly: Then these two old guys of mine will all be under your command from now on! (End of this chapter) Chapter 92 Theoretical level improvement (two-in-one) Chapter 92: Improving the theoretical level (two in one) ?Perhaps it was due to the attempt when he was just reborn, or it may be due to the fact that his management ability has improved from a blank LV0 to LV1. ? In short, the subsequent formation of the research team and the process of assigning tasks to the 606 Institute and the 410 Factory were much smoother than Chang Haonan''s own imagination. After all, the abilities and experience of the engineers who can work in these places have been tested, which is much easier than bringing two undergraduates, Zhou Shuwan and Zhang Man. When introducing calculation methods and experimental content, it is basically easy to understand. ? So that night, the team responsible for the research on the forward sweep of the upper end of the first part of the moving blade and the positive bending of the lower end had already started working. ?After assigning the last part of the tasks, Chang Haonan finally dragged his tired body out of the temporarily assigned office and prepared to go back to his residence in No. 601 to take a rest. From the day the No. 01 prototype had the accident until now, he has not had a sound sleep. There are still many problems left for him to solve. Many parts are not simple even with the help of the system. Even if the experimental part has been stripped out, the numerical simulation part alone cost him 50 points. The main limitation is naturally the level of computers in this era. The flow field complexity involved in each of the plans he gave is different. The swept blades have modifications with different sweep heights and sweep angles. The curved moving blades also have modifications with different bending heights and bending angles. Without going through the system, Before optimization, the number of automatically generated meshes for each blade was around 900,000. Let alone 1996, even in 2006, it is definitely a number that can make people''s blood pressure rise immediately after hearing it. And the pressure on this matter is greater than the previous improvement of the wing design. ?While the No. 04 prototype is being refitted with a new wing, the two prototypes No. 01 and No. 03 are still undergoing non-stop test flights, but certain adjustments are needed to the test subjects. But the engine, as the heart of the aircraft, had an accident as big as the last one, which almost resulted in the complete loss of the No. 01 prototype. It was obviously impossible to continue the test flight until the problem was solved. Every day that is delayed on this will cause immeasurable damage. ? Chang Haonan exhaled a breath of turbid air, feeling the cool evening breeze in the north at the end of August, and couldn''t help but quicken his pace. Just as he was about to enter the dormitory building, the guard on duty at the door suddenly called him from behind. Permanent worker! ??Although Chang Haonan is not a formal employee of the 601 Institute, most non-technical staff cannot figure out the more complicated twists and turns, so they are basically referred to as x work. Is there something wrong with this comrade? Chang Haonan stopped when he heard his name, turned around, and saw a security guard in uniform who looked about the same age as him running out of the guard box with something in his hand. This is a letter sent to you. Because I didnt write down the specific dormitory number, I left it with the doorman. "letter?" Chang Haonan took the brown paper envelope from the other party in a daze. He could not see clearly what was written on it in the dim light. Not many people know about his work at Institute 601, and those who know about it seem to be able to contact him directly through Yang Fenghao. Excuse me, comrade. It doesnt matter, just come to me and sign to confirm receipt. A few minutes later. With a soft click, Chang Haonan opened the dormitory door. The first thing he usually does after coming back exhausted is to throw himself on the bed and lie down for half an hour without thinking. But today, after a brief struggle when going upstairs, Chang Haonan decided that he still had to see what was going on with the letter. Light up the desk lamp. ??Although it had been several months since his rebirth, and he had gradually become accustomed to this era without mobile Internet, seeing a letter with a stamp still made him feel a strange feeling. The sender column is filled with "Xu Yang, Institute of Computing Technology, Chinese Academy of Sciences". The pen writing is very beautiful. No wonder ?Chang Haonan said to himself while opening the letter. I know that he works in the 601 Institute, but there seems to be no way to contact him by phone and I need to send a letter. It seems that he is the only one. The folded letter contained nearly 20 pages, and the thickness made him frown. Forget it, tear it all down, lets take a look at what she wrote and then rest ?Because he opened the letter so quickly, he didn''t even have time to recall whether there was any **** plot that flashed through his mind at that moment, before he saw the title at the top of the first page. Research on an improved extended Kalman filter algorithm based on differential evolution algorithm Abstract: The extended Kalman filter has been widely used in various fields such as engineering practice. However, this algorithm brings errors due to the assumption that the process noise is fixed, and the accuracy is not high. An improved EKF algorithm is studied, which mainly improves the filtering accuracy by assuming that the process noise is obtained by filtering results and observation results, and then using a differential evolution algorithm to optimize the obtained process noise variance... The results show that the improved extended Kalman filter algorithm reduces the state estimation bias and obtains a relatively ideal filtering effect ifies I kind of regret opening this letter ?Chang Haonan rubbed his swollen temples, put the letter on the table, stood up and left the bedroom. He was going to make a cup of strong tea. I''m afraid tonight''s rest will be ruined again. Hours later. Chang Haonan looked at the letter paper that had been marked with red and blue pencils and the notebook full of writing next to it, and drank the last sip of the bitter tea in the thermos cup. It can only be said that Xu Yang is indeed a doctor who returned from UCB and personally participated in the development process of the differential evolution algorithm. ?Judging from the level of ability shown by the other party, it doesnt seem to be an exaggeration to say that she has a system similar to mine. The ability to draw inferences from one instance is quite powerful. The content of this letter is not too complicated: After seeing Chang Haonans improvements to the differential evolution algorithm, Xu Yang proposed a new idea and wanted to discuss the feasibility and application prospects with the latter. Simply put, filtering is the operation of filtering out specific band frequencies in signals. It is an important measure to suppress and prevent interference. It is almost an essential process for all activities that require the emission of electromagnetic signals. In fact, the least squares method learned in high school mathematics is a classic filtering method, but since it only considers the relationship between measurement and state, the stability of this method is not good. Later, the Kalman filter method was born for linear systems whose noise obeys Gaussian distribution. Due to its high efficiency and accuracy, it soon became one of the most widely used filtering methods in engineering. ??But because the original Kalman filtering method was only applicable to linear systems, many people later made certain expansions on this basis so that this well-received filtering algorithm can also be used in nonlinear systems. The most typical one is the extended Kalman filter algorithm (EKF), which first uses Taylor series to expand the system equations and ignores second-order and higher-order terms above the second order. At this time, the nonlinear system is close to a linear form. , and then use the standard Kalman filter algorithm to estimate the state of the system. Obviously, the calculation amount of the EKF algorithm is not large, and it is not difficult to implement. However, EKF is prone to serious oscillations and even divergence in strongly nonlinear systems. By the mid-1990s, the engineering community had basically seen the limits of the EKF algorithm and began to think about improving the EKF algorithm or creating a new Kalman filter algorithm. The new algorithm proposed by Xu Yang uses an improved differential evolution algorithm to select the variance of the process noise before filtering, which greatly reduces the state estimation deviation and can rely on a slightly larger calculation amount than the traditional EKF algorithm. Achieve accuracy far beyond that of the EKF algorithm. As an aerospace engineer, Chang Haonans previous understanding of filtering algorithms was limited to the application level, and he did not have a deep understanding of the basic principles. However, if he only looked at the process of optimizing process noise through differential evolution algorithms, it should be no problem. ?? He raised his head and looked at the horizon that was already turning fish belly white. The tiredness that had just been suppressed by the strong tea finally came over. ?Chang Haonan decided to take a break and find a few books to study thoroughly before replying. On the one hand, the optimization work on the blade shape design of the turbojet 14 compressor has just begun. Most of the work at this stage is completed by engineers from the 606 Institute. Moreover, because of the existence of the system, the code written by Chang Haonan does not require debugging as long as the idea is correct. This ability that envies countless programmers determines that the most time-consuming part for him is not programming, but waiting for calculation results, so there is Enough time to do it. On the other hand, although the algorithm Xu Yang came up with has no effect on the current engine improvement, it is the basis for a series of technologies such as precision-guided weapon strapdown seekers, radar data links, and missile inertial navigation system calculations. They are all closely related to the Pili 11 semi-active radar-guided air-to-air missile, a copy of the A-bomb that Chang Haonan was previously pessimistic about. It is organic and has no ammunition, and it cannot form combat effectiveness. ?If it can be realized, it may be of great help in solving the problem of insufficient target test accuracy that has plagued it for a long time. ??Its almost like Im dozing off and I give you a pillow. Perhaps the weapon system of Project 83 can also see hope within this year... This was Chang Haonan''s last thought before falling asleep. The next morning, Chang Haonan left the dormitory after washing up and prepared to go straight to the library, borrow some materials and continue to study the idea proposed by Xu Yang. Especially the second half of the section related to Kalman filtering. But when he went out with high expectations, he happened to meet Yao Mengna who had also just opened the door to the room. The two looked at each other. Why is Team Leader Chang going out so late? Dont you need to prepare meeting materials in advance? Yao Mengna locked the door with a hint of teasing in her tone. After hearing this, Chang Haonan was stunned for a moment, and then slapped his forehead heavily. Being a manager requires getting used to. Having been a screwdriver for decades, he is already inexperienced in this area. In addition, after reading letters all night, his mind was filled with algorithm-related things. As a result, he almost forgot about today. About the morning meeting. This meeting was even proposed by him last night. Fortunately, I was reminded by Yao Mengna when I went out today, and the entire task assignment process was in Chang Haonan''s mind, so it would not delay the important matter. ?However, he still controlled not to show any annoyance. He just took a breath and pointed to his head. No need, I have all the knowledge in my head, just start assigning tasks when I get there. ?However, the duration of the final morning meeting exceeded Chang Haonan''s estimate. It was not until after lunch time that he found the information he wanted from the library and returned to a computer room specially set aside for him in the computing center. ?Since it was clear that the idea was feasible, Chang Haonan did not even need to use the system. He quickly found the part he wanted from the pile of data he received. Actually, with the current system level, there is no way to carry out two projects at the same time, so he can only rely on himself this time. For almost a whole afternoon, Chang Haonan almost kept analyzing and calculating ideas on the draft paper. "often" ??When Yao Mengna opened the door and came in to ask him to have dinner, she only saw a figure writing furiously from behind. After hesitating for a moment, she pursed her lips and gently closed the door again. ?At this time, Chang Haonan had completed the entire calculation process and took out a stack of letter paper from the side to write a reply. ??The scrawled content on those draft papers just now, even if he were to read it himself the next day, he might not be able to understand it. In the original timeline, the unscented Kalman filter algorithm (UKF) was developed to solve the problem of large linear truncation error in the EKF algorithm. Chang Haonans original idea was to use this algorithm combined with the noise variance optimization proposed by Xu Yang, which should be a very important breakthrough in the field of information extraction. ??However, as he gained a deeper understanding of the algorithm, he discovered that the theoretical mathematical derivation process of the UKF algorithm was not rigorous, and after several calculations and simulations, it was proved that the numerical value in a high-dimensional state was still not stable enough. ??While just learning and researching the Kalman filter method, a flash of inspiration gave him a more subtle idea: "Huishu appreciates that the idea of ??using the improved differential evolution algorithm to automatically adjust the variance matrix of the process noise matrix is ??quite novel. After numerical simulation calculations, it has been proved that it has good estimation accuracy, but there are still some problems in the EKF filtering algorithm itself. question" Since EKF needs to obtain the Jacobian matrix, the specific form of the nonlinear function must be known exactly, and black box encapsulation cannot be achieved. Since the derivatives of the nonlinear functions of the state equation and the observation equation cannot be obtained in many practical problems, it is difficult to obtain the Jacobian matrix. "According to Bayesian theory and Spherical-RadialCubature rules, the integral in the Cartesian coordinate system can be converted into a spherical-radial integral, and a set of deterministic sampling points can be used to perform state estimation through the propagation of nonlinear equations. The specific The steps are as follows:" Step 1: Determine the initial value of the filter: X0=E(X), P0=E[(X0-X0)(X0-X0)^T] "The second step is to calculate the volume point at time k-1, P(k-1|k-1)=S(k-1)S(k-1)^T, where S(k-1) passes through P( k-1|k-1) Choleski decomposition is obtained. For the volumetric Kalman filter algorithm, the point set and the corresponding weight w are..." Time passed by minute by second. At the beginning, Chang Haonan still needed to write for a while and then stopped thinking for a while. However, as the calculation process progressed, his entire idea became more and more smooth, and he seemed to have entered a certain stage. A state similar to "flow". So when he finally wrote "Reply now, leave the rest for later" at the end of the letter and signed his name, he saw the dinner packed by someone on the table next to him. I used to think that forgetting about food and sleep was a figure of speech Chang Haonan thought of himself who forgot to sleep last night and forgot to eat tonight. He smiled and shook his head, then folded the letter and put it aside. ?While opening the lunch box, he glanced at his system panel and then froze on the spot. Scientific Research Points: 110 Theoretical level: LV2 (500/10000) Engineering experience: LV1 (270/1000) Management ability: LV1 (100/1000) Comprehensive ability: LV1 Projects in progress: 1 Projects that can be carried out: 0 Because this is the first time since his rebirth that the experience of [theoretical level] has increased. And its 500 points at a time! You should know that the things he wrote have not even been read by the second person, and have not had any real impact yet. It seems like Ive done a really big job this time ?Chang Haonan leaned back on the chair, opened the disposable chopsticks, rubbed the sore back of his neck and muttered to himself. I was driving late on the road just now. I always thought that the UKF algorithm was proposed in 2000, but today I saw that it was proposed in 1991, so the subsequent plot about the improvement of the Kalman filter method has to be adjusted, but now the details have been Straighten it out again, no problem. (End of this chapter) Chapter 93 A blessing in disguise Chapter 93 A blessing in disguise While Chang Haonan was thinking about ideas for improving the Kalman filter algorithm, the entire 83 Project team was certainly not idle. Instead, according to his deployment, they started working intensively on the impact of swept blades on the flow in the expansion cascade. A study of the effects of separation conditions. Because I already have mature ideas and research methods, there are not many parts that require a flash of inspiration in the whole process. The main thing is to be step-by-step and careful and meticulous. With the help of Chang Haonan and the entire digital design team, the efficiency of experiments such as static pressure distribution and limit flow spectrum has been greatly increased. Since simulation methods can be used to predict the results, or at least the changing trends of the results, it is necessary to actually conduct The number of tests has been reduced by almost an order of magnitude compared to before. Even so, after all, every experiment requires the 410 Factory to actually manufacture the required compressor blades, so the improvement of the entire engine cannot be completed overnight. Of course, for 606 institutes that are used to working on a yearly basis, this work progress is almost like a dream. Even Yan Zhongcheng was shocked by the smoothness of the test process. In short, according to Chang Haonan''s initial estimate, it would take about twenty days to come up with an improvement plan. ??If it werent for the fact that at the end of the first week, Yao Mengna accidentally saw an article from the Journal of Aeronautics and Astronautics. The time goes back to when Chang Haonan had not yet joined the 83rd Project research group. In Bingcheng, more than 500 kilometers away from Shengjing. Ph.D. student Zhang Donglin is using the classic ROTOR37 blade to study the impact of tip clearance height on the flow field in the Aerodynamics Laboratory of Bingcheng University of Technology. In fact, it is similar to Chang Haonans ongoing project, except that the research content is relatively rough. ?? And because of the lack of support from simulation methods, the research methods of their research group are still based on traditional large-scale experiments. In addition, the funds are not very sufficient, so the efficiency is not high. Senior brother, theres another power outage in the laboratory. ?Zhang Donglins junior brother puffed out his cheeks and opened the office door with a depressed look on his face. "I know." Zhang Donglin pointed to the two computers in the office that had been shut down due to a power outage: "But there is nothing we can do, we can only wait." For China in the mid-1990s, power shortage was still a major problem plaguing the whole society. In fact, until about 2010, for many non-first-tier cities, power supply interruptions in residential areas due to insufficient power were still a relatively common thing. Relatively speaking, Bingcheng University of Technology, as a university directly under the Commission of Science, Technology and Industry for National Defense, naturally has a very high priority in terms of power supply. Even so, except for some particularly key laboratories that have independent power supply lines or even self-provided generators, power outages are still a difficulty that needs to be faced frequently. So Zhang Donglin was not too surprised. He just looked at the two computers and muttered: "I just hope that the data in the computer will not be lost due to a sudden power outage..." ?His junior brother also lay down on the two chairs spliced ??together next to him. In that case, senior brother, let me catch up on some sleep first. If you call me, call me again. Because the summer vacation is not over yet, there are only two of them in the whole office. Junior brother and Zhang Donglin have always had a good relationship, so they are more relaxed. ? Zhang Donglin, who was also swept away by fatigue, nodded, but almost instinctively lay down on the table. About an hour later, the two of them were woken up by a phone ringing. Their tutor, Professor Lin Haijun, said that a new batch of blade samples had been sent from the school''s metalworking center and they were asked to pick them up. ?The phone ringing meant that the power supply had been restored, so Zhang Donglin asked his junior brother to go back and do experiments while he began to inspect the batch of blades.? ? ? Then he saw a scene that made people hypertensive. ??Due to some stains on the paper design drawings during the handover process, the worker responsible for the production process mistakenly opened a chordal channel on the surface of the blade that penetrated the suction and pressure surfaces. ??More than 30 blades in this batch were all scrapped. Fortunately, he checked it carefully before signing for it, otherwise if he had just signed his name, the loss would have to be borne by the research team. The blades used for basic research in the school are naturally unlikely to be made of special expensive materials like those actually used in aerospace engines, but even so, it is still a large expense for their young mentors. ?After taking a few minutes to stabilize his mentality, Zhang Donglin contacted the instructor using the phone number of the director''s office of the Metalworking Center. ?The youngest associate professor in the school still has some status after all. After some battles, the Metalworking Center finally promised to re-manufacture a batch of blades for them. However, due to production scheduling issues, it would take an extra 4-5 days. ?Since these blades that have been processed into scrap products have been sent, no one is willing to take them back. Therefore, Zhang Donglin, who was a little worried about the progress of his graduation, returned to the laboratory depressedly, casually placed the scrap blades in the corner, and then returned to the office to continue sorting out his previous experimental data. This minor incident was quickly forgotten. Until noon the next day, the junior brother hurried in again. Brother, our experimental equipment may be broken. Zhang Donglin felt as if his heart stopped beating for a second. Whats wrong? I replaced a new set of blades, but the experimental data is very abnormal compared with the previous series. New blades? Zhang Donglin was stunned for a moment, and then realized that he had forgotten to notify the junior brother who was doing the experiment after putting the damaged batch of blades in the laboratory yesterday. ?This finally made him, who was nervous just now, relax and waved his hand towards his junior brother who was standing at the door. "I forgot to tell you that the blades piled next to the cabinet behind the door are scraps accidentally processed by the metalworking center. It is normal for the data to be wrong when you install them." Waste...waste? ??Junior brothers surprised voice made Zhang Donglin raise his head again: Yes, you should pay attention when installing the blades. There is a slit on the side. But senior brother, judging from the experimental results, the performance of those blades... is very promising, but the fluctuation is very serious. "Um?" He briefly thought about the papers and reference books he had read in the past, and did not recall that anyone had studied the impact of chordwise slits on the pressure front edge and trailing edge of a blade. After all, intuitively, this will only cause the flow field inside the compressor to become more turbulent. ?However, Zhang Donglin, who has been studying for a doctorate for three years, understands that it is in these things that are usually ignored due to intuition that new discoveries are more likely to be found. Take me to see it. (End of this chapter) Chapter 94 How can I know that it is not a blessing? Chapter 94 How to know that it is not a blessing ?When Zhang Donglin saw the experimental data recorded by his junior brother, his first feeling was that he was a little confused. But after all, he has been studying for a doctorate for three years, and he quickly found something valuable from the messy numbers. Its a bit interesting ??Although as his junior brother said, the stability of these sets of experimental data he made is very poor. But if you ignore the huge variance and just take the average value, you can still find that when the Mach number Ma=0.40 and the angle of attack are 0, 3 and 6 respectively, the corresponding total pressure loss coefficients are reduced by 7.0% and 32.1 respectively. % and 32.3%, the average airflow turning angle increased by 4.02, 3.59 and 1.78, and the stable working range increased by 3.5 angle of attack. Obviously, this is quite an amazing progress. ?However, the calculation method of "ignoring the variance and taking the average directly" is obviously difficult to achieve, and Zhang Donglin has to make sure that the result can be reproduced and is not due to some kind of misoperation. Looking at the experiment notebook in front of him, he took two deep breaths in succession: Junior brother, I want to see the process of your experiment just now. Can you repeat it exactly as it is? Ah...of course, no problem. In the next two hours, Zhang Donglin watched his junior brother perform repeated experiments with skillful movements while taking out a notebook to record some of his thoughts and ideas. With such exaggerated fluctuations, the experimental results are naturally different from those just now, but the overall pattern remains the same. ?The chordal groove accidentally opened during manufacturing can indeed improve the performance of the compressor to a considerable extent, especially the performance under large intake angle of attack. ? Judging from the few sets of data currently available, the faster the air intake speed and the larger the angle of attack of the compressor, the more obvious the improvement effect will be. In addition, Zhang Donglin also wrote down several factors that may affect performance, such as the location (height) of the slit, the shape and angle of the slit, etc. ?However, before he finished writing the last part, he knew that this issue might be difficult for the small research group he was a part of to fully study. ?Compared to the blade tip consistency and stacking line that they are currently focusing on, there are actually so many independent variables related to this slit that it feels a bit outrageous. ??More importantly, the compressor experimental equipment at Bingcheng University of Technology can only support typical subsonic research at the maximum Mach number Ma=0.59. With some tangled feelings, Zhang Donglin found his mentor Yu Fei. Howhow is this possible? After seeing the data in the experimental notebook and listening to Zhang Donglins analysis, Yu Feis first reaction was almost exactly the same as that of his students: "This kind of chordwise slit will cause the small flow turbulence with low total pressure and the mainstream with high total pressure to meet. The velocities are added on the vector. The velocity of the mainstream fluid decreases and the velocity of the wake fluid increases. This process will produce serious consequences. How could the mixing loss and total pressure loss coefficient be reduced instead? In addition, the volatility of this original data is too great. I estimate that the correlation coefficient may not even be 0.7. How dare you directly average this kind of data? But I asked my junior brother to repeat this experiment again, and the results still show the same pattern. Zhang Donglin did not intend to give up this opportunity: And you also have to consider that although blade slits will increase mixing losses, they can also play a blowing role and delay the large-scale boundary layer separation of the blade cascade. There should be competition between these two effects. The relationship is right! The master and apprentice looked at each other in silence for a few seconds. As mature scientific researchers, they know that it is impossible to solve the problem by bickering here. Yu Fei held his chin with one hand and beat the beat on the table with the other hand almost unconsciously. After thinking for a few minutes, he spoke again: You know that the flow loss inside the compressor is still almost a mystery to us at present. If we want to study this problem from a mechanism perspective... I am afraid it will be difficult to get the answer. But if we do an experiment He did not say it directly, but even Zhang Donglin knew that the laboratory at Bingcheng University of Technology did not have this capability. ?The office fell into silence again. "In this way, you first design a set of experiments and do everything that can be done in our laboratory. Considering that the research in this area is still basically blank, I think if we put more effort into it, we can publish an article Journal of Aeronautics or Aerodynamics shouldnt be a problem. But...the effect of such research should be discounted, and we simply cant do the supersonic or even high-subsonic compressor part. I think..." I know what you mean, Zhang Donglin was interrupted by Yu Fei raising his hand before he finished speaking: "How to deal with the following matters depends on the results you make next. If it cannot be determined below the classic subsonic speed, then this direction is basically equivalent to being blocked. It is safer to return to the original position as soon as possible. on the route. And if the experimental results show that your two ideas are correct...then this will be a major breakthrough in the field of compressor design. ?Hearing the last few words, Zhang Donglin''s eyes lit up: A major breakthrough? As a doctoral student at Bingcheng University of Technology, he knows the weight of these four words very well. But...dont be too happy too early. Yu Fei looked at Zhang Donglin who looked like a fox with his tail raised and said: As you just said, we have limited hardware conditions here and cannot do more in-depth research, so I am going to report it to the Commission of Science, Technology and Industry for National Defense and let them organize manpower to conduct a comprehensive evaluation. "That''s why I just asked you to take advantage of this time to quickly conduct experiments and formulate an article to send out. On the one hand, it is possible for you to directly participate in the projects of the National Defense Science and Technology Commission, and on the other hand, you can at least leave something for yourself. " Besides, arent you just one paper short of graduation requirements? ?This last sentence convinced Zhang Donglin, and he decided to solve the immediate graduation problem first, and then consider how much more he could dig out from his unintentional discovery. So, after two months of experiments, submissions and waiting, a paper titled "Numerical Analysis of Blade Cascade Characteristics after Slotting from Pressure Surface to Suction Surface" appeared in the Journal of Aerodynamics. ?Almost at the same time, Yu Fei reported this paper as a key achievement to the Commission of Science, Technology and Industry for National Defense, the direct superior of Bingcheng University of Technology, saying that this achievement has the potential for further follow-up research. Should it be said, the efficiency of Zhang Donglin and Yu Fei is still a bit slow. ??If we follow the normal administrative process, this topic will still come to the 606 Institute in a roundabout way, but there is a high probability that it will not be able to keep up with the technological improvements of the Turbojet 14. Fortunately, one day after work, Yao Mengna went to the library to borrow a book and read it. She noticed this paper and borrowed it out of curiosity and took it back to the computer room. (End of this chapter) Chapter 95 Yao Mengnas discovery Chapter 95 Yao Mengnas discovery ?Yao Mengna lent out the "Aerodynamics News" purely out of interest. She saw an article with an interesting summary. Written by a Ph.D. from Bingcheng University of Technology. By opening a jet slit between the suction surface and the pressure surface of the blade, the high-speed airflow on the pressure surface can be directed to the suction surface through the jet slit under the action of the pressure difference, injecting energy into the low-speed area of ??the suction surface, thereby delaying the separation of the boundary layer. When she first saw this place, Yao Mengna was a little shocked. ?This method has a simple structure, is easy to operate, and does not require additional energy injection. ? ?If the effects mentioned in the abstract can really be achieved, it can be said to be a revolution in compressor internal flow control technology. An article of such weight seems not to appear in a mere journal of Aerodynamics. After all, even if this journal is published in China, it cannot be considered the top in the aerospace field. ?Furthermore, considering that this is just a basic research article that does not involve specific models, there is no problem in submitting it to relatively well-known foreign journals such as ACTAAstronautica or Advances in Space Research. You must know that according to the current achievement evaluation system, even the top Chinese Journal of Aeronautics and Astronautics is not at the same level as the latter two. ?Thinking of this, Yao Mengna turned over the pages carefully, preparing to see the specific contents inside. ?At the same time, a name that appeared very frequently around her recently came to mind almost involuntarily. There cant be people like him who dont even care about papers ? Yao Mengna had heard about Chang Haonans abandonment of Progress in Aerospace Sciences, the top journal in the industry, from Du Yishan. ?At that time, all she could think about was emotion and admiration for the other persons awareness. ?However, as her understanding of Chang Haonan deepened, she gradually realized that in addition to the issue of awareness, a big reason for that matter was that a paper in the top journal in the industry may indeed be nothing to the former. Thinking of this, Yao Mengna finally realized that her thoughts seemed to be wandering a little too far, so she shook her head and forced herself to return her attention to the magazine in front of her. ?After spending about half an hour carefully reading the following content, she understood why this seemingly high-level article was posted so casually The verification part is really inadequate. Not only are the data in the experimental part fragmented, but the range of experimental conditions chosen is also very narrow. There is not even a systematic study on the impact of the properties of the jet slit on compressor performance, let alone more complex flow field simulation and theoretical analysis. What a pity Yao Mengna shook her head. It was not difficult for her to think that the reason for this situation was limited by the objective experimental conditions. After all, there is not enough research funding at this time, and the research groups of major universities are mainly focused on making money to make ends meet. In the past, she would probably just write down the main conclusions of the article in a notebook, and then tell her mentor when she saw him. Even for Du Yishan''s research group, experimental funds are still tight. Without project support, there is no condition to conduct this level of experimental verification. "but" After hesitating for a moment, Yao Mengna stopped putting the magazine back on the bookshelf and borrowed it. She plans to use numerical simulation to verify the content of this article. After returning to the calculation center, she immediately found Lin Shikuan who was busy performing parameter fitting and flow spectrum calculations on blades with different curved sweep designs according to Chang Haonan''s guidance. Although the entire digital design team is from the 601 Institute, considering that the 606 Institute has almost no experience in numerical simulation, and the 83 Project is a whole, Yang Fenghao still assigned them all to Chang Hao. Nan is responsible for managing the engine research team. "Forest worker, I need you to borrow a workstation and...well, one or two people." Do you have any new tasks coming from Dr. Chang? ?Lin Shikuan was startled when he heard Yao Mengna''s request. He thought it was some new job at Institute 606, and rubbed his forehead that was swollen from long hours of work with some distress. Although the basic principles of numerical simulation are the same, their entire team, including Chang Haonan and Yao Mengna, has less than ten people in total, but they have to bear the entire improved computational simulation part, which is really stressful. "Well...this time it has nothing to do with him. It''s just my own idea." Yao Mengna shook her head: "It''s about the design of the compressor blades." After finishing speaking, he seemed worried about saying too much, so he added: "But it hasn''t been verified yet, so it''s hard to say what the result will be." ?Lin Shikuan showed a slightly troubled expression. Among the duo sent by Beijing Hang University, although Yao Mengna''s brilliance is not as dazzling as that of Chang Haonan, so much so that the entire August 3rd Project has a faint tendency to work around him, but if it specifically refers to the digital design team, Yao Mengna is influenced by On the contrary, I need more help. Mainly because the latter is really good at parametric design. So he wanted to do this favor to the other party. But right now, his manpower is indeed very insufficient, and Chang Haonan''s progress is very tight. It doesnt matter if we open another workstation, but we really cant spare the manpower. As you know, parametric fitting mainly depends on the workload. Lin Shikuan replied with some confusion: "But I suggest you ask Dr. Chang for help. You should be more familiar with him than I am. In terms of numerical simulation, his efficiency alone can at least equal that of a company." Thats...okay. Yao Mengna was actually not sure whether she could really dig out anything useful from that article, so she didn''t force it and just asked for the key to another computer room where the workstation was kept. After opening the workstation, she entered a series of command line statements with unskilled movements, then flipped the journal in her hand to the page she wanted to read, and took out the scratch paper and a red and blue gun from the bag she carried with her. pencil. I dont know when Yao Mengna started putting a pencil sharpener and a large number of red and blue pencils in her schoolbag, but the ballpoint pen she was used to using had not been taken out for a long time. ?However, she seemed unaware of this change. The missing parts of this article are first the cross-sectional shape of the jet slit, and then the location of the slit The flow problem inside the compressor naturally still involves solving the Reynolds average N-S equation, but for impeller machinery, it should be switched to the rotating coordinate system..." After all, she was someone who had experienced a lot of training around Chang Haonan. Yao Mengna quickly wrote out the basic simulation ideas, and started meshing, model selection, and boundary conditions determination on the computer according to her own ideas. Then, her work progress got stuck here. (End of this chapter) Chapter 96 Why are you doing research? Chapter 96 Why do you study it? The boundary conditions encountered in turbomachinery are among the most complex in the field of CFD. Since the boundary layer approximation is invalid in many cases, these equations must be solved as a coupled system. And there are a large number of flow, heat transfer and geometric parameters in the turbomachinery flow: Mach number, rotation speed, intake angle, Reynolds number, Thoma coefficient, Richardson number, Prandtl number, blade pitch, bending torsion, aspect ratio Based on these parameters, Yao Mengna also introduced a jet slit that had never been tried before, further increasing the independent variables of the internal flow field of the compressor and making the simulation more complex. ?So as the computational simulation program was gradually completed, she gradually realized that the process she had just written down on paper was not very feasible in actual operation. Mainly because Yao Mengna conducted a simulation attempt using an experimental group with the simplest slit, and found that the required convergence time far exceeded her expectations. In fact, Lin Shikuan and others also encountered similar problems, but they were later solved by Chang Haonan, who achieved accelerated convergence through methods such as local time steps, multigrids, and implicit residual smoothing. However, these things are still a bit complicated for people who are just starting out in the field of numerical simulation. In addition, the time is tight and the tasks are heavy, so in the end the latter person is responsible for writing the relevant programs. This put her in a bit of trouble. If you ask your junior for help ?Yao Mengna does not object to working with Chang Haonan. Or rather, she enjoys working with Chang Haonan. And she also knew that with the other party''s ability, it shouldn''t take too long to solve this problem. But Chang Haonan is now not only in charge of the digital design group. ? There are so many things related to the improvement of Turbojet 14, and his previous management experience is insufficient. During this period, he really felt a little overwhelmed. Yao Mengna was often required to do some things on his behalf, and he was in a state of severe lack of sleep almost every day. ?On the other hand, Yao Mengna also has some selfish motives. Before meeting Chang Haonan, she always thought that she should be a genius. In fact, most people around me feel this way. But in recent months, everything has changed. ?The appearance of Chang Haonan and his exaggerated performance in the wing flutter analysis project almost directly broke her heart. But fortunately, we finally adjusted... At least that''s what she thought for a time. You are just an ordinary person, and there is nothing wrong with ordinary people. Yao Mengna told herself this. ?However, a persons obsession for more than 20 years cannot be given up casually. ?Although she has accepted the fact that she is not as good as this new student, she still wants to do something entirely on her own. Its not easy to ask others for help with everything...and hes really been overburdened recently. ?This reason was so impeccable that Yao Mengna easily convinced herself. She decided to refer to the program written by Chang Haonan before and try to see if she could solve this problem alone. ??At the same time that Yao Mengna decided not to find outside help to verify and expand the content of the article, Yu Fei, the tutor of the author Zhang Donglin, also entered the office of the dean of the college. Previously, due to the dual limitations of the metalworking center''s processing capacity and their laboratory experimental conditions, Zhang Donglin only spent a month to obtain data results that were not very good. ??However, the editors and reviewers of Acta Aerodynamics showed extraordinary interest and efficiency, and it took more than two months for his paper to be published. This gave Yu Fei confidence to a considerable extent. Although Journal of Aerodynamics is not a top journal in China, it is, after all, managed by China Aviation Industry Corporation and sponsored by Beijing University of Aeronautics and Astronautics. Being recognized by its editorial board seems to be equivalent to taking the most critical step. As long as you can get a separate project sponsorship, you can definitely show off your skills in this direction. Zhang Donglin may even get the opportunity to stay in school after graduating with his Ph.D. and continue to engage in research in related fields with him. ??In short, when Yu Fei opened the office door, he was even imagining that he would be promoted to full professor for completing the project... Then, he saw his dean, who was wiping sweat with a handkerchief, and two other unfamiliar faces, a man and a woman, sitting next to him. This is Associate Professor Yu Fei who applied for that topic before. The dean first introduced to the two people next to him, and then turned to look at Yu Fei: "These two are comrades from the Commission of Science, Technology and Industry for National Defense. They are responsible for reviewing your project application with me." Sun Xianmin. Ling Na. The two of them shook hands with Yu Fei and announced their names at the same time. ?The latter, who was immersed in the excitement of having **** just now and has not yet fully recovered, did not notice that their attitudes were a little cold. The four people quickly moved to a small conference room. The dean coughed twice and spoke first: Associate Professor Yu, let me first report on the general situation of the project you applied for. No problem, Yu Fei picked up a piece of chalk and walked to the blackboard. He had made full preparations before coming here, and he was naturally confident at this time: High-performance engines require compressors with higher efficiency and boost ratio, resulting in an increase in stage load and flow loss In previous experiments, our research team accidentally discovered that grooves on the blade surface can effectively improve the flow separation inside the compressor..." We have currently studied the flow of planar stator cascades and tried radial jet slits that open from the suction surface to the pressure surface and chordal slit structures that do not open up the two pressure surfaces Relevant research results have been published in the Journal of Aeronautical Dynamics. We believe that opening jet slits on the blades to reduce losses and improve the load bearing capacity of the compressor is a very feasible route, so we hope to get a Grant money to study this. After finishing these contents almost in one breath, Yu Fei turned his attention to the three people opposite. The air became quiet. The next half minute seemed as long as half a century to Fei. In the end, it was Ling Na who spoke first: Uh... This is an associate professor. According to the requirements, the project application submitted should have a complete literature review. Yu Fei was stunned: I have said before that this phenomenon was first discovered by our research team in experiments. No one has studied it at all. How can we write a literature review? Hearing this answer, Ling Na and Sun Xianmin looked at each other, and then continued: With all due respect, the correlation of the experimental data you obtained is really poor. Its difficult to get the results you just mentioned... "Both of you, in the field of engineering, the correlation coefficient of 0.82 can already explain some problems, at least it can prove the value of continued research." Yu Fei frowned, but still forced himself to answer patiently: Furthermore, our experimental equipment and the accuracy of blade processing cannot meet the requirements for more precise experiments. This is why I submitted the project in the hope of applying for more funds. As you said, the accuracy of your experiment is very poor, so how can you be sure that this result is not caused by the error of the instrument? This time, Sun Xianmin, who was sitting opposite, showed a slightly sarcastic look: You cant find any literature in the relevant field. It doesnt mean that you are original. It just means that others dont think this kind of research is meaningful at all. "If you want to apply for a special project, you must at least provide convincing evidence. Otherwise, don''t waste everyone''s time here. I would say that young people should not be too ambitious and be more down-to-earth. Go and see What are the directions that developed countries are focusing on? Dont hide in your own world and do those useless things! Yu Fei clenched his fists instantly. (End of this chapter) Chapter 97 Theres a bright future Chapter 97 A bright future This...Commissioner Sun, its my fault for not checking the application documents carefully. Just when Yu Fei could hardly help but stand up and argue, the dean, who had been sitting next to him without speaking a word, noticed his excitement and quickly spoke up: But what Associate Professor Yu just said is not unreasonable. No one has studied it, which means we have originality. If a limited amount of funds could be allocated to conduct more detailed preliminary demonstrations, I think we would be able to produce results with higher precision and better consistency. ?Seeing the dean speak, Sun Xianmin''s expression softened slightly, and the atmosphere in the entire conference room was not as tense as before. Ling Na next to her spoke again: "Dean Ji, you know that the Science and Technology Commission has a complete set of procedures for establishing projects and appropriating funds for college teachers. We can understand that young teachers are fearless, but scientific research funds are limited after all. Here In this case, we can only give priority to research topics that are proven and have less risk. Obviously, although the person responsible for singing the red face has a much better attitude than Sun Xianmin, he has no intention of letting up on this matter. "This is obviously an opportunity to overtake in a corner." Yu Fei obviously still refused to give up and was ready to continue struggling, his tone also full of sorrow: You keep saying that you are paying attention to the directions that developed countries are paying attention to, but there are only so many ways to increase the compressor pressure ratio. What are the developed countries studying? Increasing the tip speed, increasing the blade camber angle, and modifying the geometric structure! "Their research on the basic field of air flow inside the blade is at least 20 to 30 years ahead of us, not to mention blade materials and manufacturing processes. If we keep following others like this, how can we narrow the gap with them? gap? Associate Professor Yu, catching up with the English and American satellites is no longer feasible in todays era. Sun Xianmin leaned back on his chair and tapped the table lightly with the pen in his hand: "Our entire department receives hundreds of project applications every month, and the content of each one is similar to what you said. They all say that they can catch up with the international advanced level, but we can''t just approve hundreds of them just because of these. With RMB 10,000 in scientific research funding, no one can bear this responsibility. Yu Fei''s mind started to heat up and he almost blurted out: "Take responsibility? If you are afraid of taking responsibility, then doing nothing is the safest thing!" ?However, the last trace of reason allowed him to control himself and just opened his mouth. ?Although I still had thousands of words in my mind, I didnt continue speaking after all. Obviously, the two sides are not considering the same thing at all. He is talking about the realization of technological prospects, while the other party is concerned about the implementation of specific responsibilities. It has nothing to do with right or wrong. There is no point in continuing to dwell on this. ?No one can convince anyone. ?So the approval defense ended hastily in a slightly embarrassing atmosphere. ?Sun Xianmin and Ling Na even refused Dean Jis request to stay with them for dinner. "well" After sending the two people away, Yu Fei sat on the sofa in the dean''s office feeling a little disappointed. He is a relatively pure scientific researcher. ??This feeling of having clearly grasped a thread among thousands of threads, but being unable to continue due to non-technical reasons, and watching the opportunity slip away from your hands little by little, is very bad. More importantly, Yu Fei could not accept the thinking of the two people just now. Scientific research itself should be a process of constant trial and error, and finding a way out after encountering obstacles again and again. Failure itself is valuable to science. If you simply refuse to approve funds or projects because you are worried about failure, it is tantamount to giving up food because of choking. ?On the other side of the office, Dean Ji is sitting behind his desk. ?Looking at Yu Fei who was like a deflated rubber ball, he raised his head and thought for a moment, seeming to be struggling with a decision. Finally, a few minutes later, he turned his attention to Yu Fei on the sofa again: Teacher Yu, in fact, the concerns of the two people just now are not unreasonable. There are some things you may not know. At the beginning of this year, the Science and Technology Commission appointed people to conduct an inspection on the completion of projects in several directly affiliated schools. "Project verification?" Yu Fei raised his head: "Isn''t it done every year? Do you need to write a year-end summary report?" "Of course it''s different." Dean Ji shook his head: "You and I both know how much water can be put into the year-end summary report, or even the final report, and the higher-ups naturally know it too." So at the beginning of the year, we sent expert teams to each school for verification through random inspections. Yu Fei has never undertaken a vertical project issued by the Science and Technology Commission before, so he naturally knows nothing about it, but he can guess the general situation even from Dean Jis tone: The result...is not optimistic? "It''s not just pessimistic, it''s just chaos..." Dean Ji picked up the cup and took a sip of water, hiding his expression well: I cant say too specific things, but in short, the group of people who were responsible for the review and appraisal of previous projects have left a lot, like the two people who just came, they are all new ones. "this" ?After thinking about it like this, although Yu Fei still felt very unhappy, at least he felt that the behavior of the two people just now was not so illogical. But from another perspective, I am afraid that for a long time to come, the project approval process under the Science and Technology Commission system will become extremely strict. He also knew that the feasibility study of his project application was not very complete. And if you want to make groundbreaking results, there is no way. ?Of course, in the final analysis, everything is caused by insufficient funds. That means...there is no hope at all? Yu Fei''s voice was dry, and even became a lot shriller as he spoke. Although this was a question, he actually had no hope, so his voice was low as if he was talking to himself. While speaking, he stood up in a daze and prepared to leave the office. Not necessarily These three words pulled Yu Fei''s body back to the sofa. I have also read your project application. Although the data is a bit rough, there is indeed a prospect. I happen to have an old buddy, and one of his students has recently been studying computational fluid dynamics analysis. It is said that the calculation results are very reliable. If you are willing to cooperate, I can contact you. "You know, experiments in the field of aerodynamics are time-consuming and costly. Even if the computer simulation methods there are not up to the accuracy they say, at least they are short and cost-effective, and they can improve your experimental data. " Yu Feis eyes lit up when he heard this. Of course no problem! (End of this chapter) Chapter 98 emergency takeoff Chapter 98 Emergency Takeoff The old man mentioned by Dean Ji is naturally Du Yishan. As for the old mans student, there is no doubt that he is Chang Haonan. In normal times, this kind of cooperation is not particularly complicated even if it is carried out across schools. It is just that there will be some entanglements in the ranking of final results and contributions. But the problem is that the two people in the research group, Chang Haonan and Yao Mengna, who are best at numerical simulation, are already highly bound to the 83rd Project. Even now they are dealing with the problem of turbojet 14 engines. Since Yao Mengna''s research on compressor blade slits was conducted privately, no one else knew that the unremarkable article published in Aerodynamics had entered her field of vision, and it must have been very Soon they will enter the vision of Chang Haonan and Yan Zhongcheng. ?Du Yishan quickly found Liu Zhenxiang, who had been working in the field of aviation power for many years. Although the latters research focus in the past ten years was actually aero-engine testing simulation equipment rather than the aerospace engine itself, he quickly saw the potential of Yu Feis research direction. ?Of course, the word potential alone is definitely not enough for Yu Fei to directly join the 83rd Project. Even with Du Yishan''s personal recommendation, Chang Haonan passed the review by solving the wing flutter problem for the MA60 and became a member of the core circle of the entire August 3rd Project. . You should know that on the second day after he and Yao Mengna arrived in Shengjing, they were led by Lin Shibuan to participate in the project progress seminar. ?This kind of meeting seems to be very frequent and inconspicuous, but there are still only a few people who can actually participate in the meeting. ? Even many engineers from the 601 or 606 Institute who were not deeply involved in the August 3rd Project did not have such a high right to know. So after discussing it for a period of time, Du Yishan and Liu Zhenxiang decided to let Yu Fei participate as a peripheral researcher. In other words, he can cooperate with Chang Haonan (or Yao Mengna), but he will not join the project team for the time being. Confidential information above a certain level involved in the scientific research process needs to be declassified before it can be sent to him. ?Although the 83rd Project is advancing at an unprecedented speed, some things will come faster. The fifth radar regiment of the East China Sea Fleet Aviation Force. Report to the battalion commander, the signal has appeared again! A radar soldier shouted excitedly behind him. ??The major officer who was resting on the table suddenly woke up when he heard these words, rubbed his bloodshot eyes, and came behind the radar soldier. The circular display of the early warning radar showed an echo signal lingering about 150 kilometers away from the coastline. Still no transponder on? An aircraft transponder is an electronic device mainly used for air traffic control. When it receives a radio interrogation signal, it automatically responds so that secondary radar on the ground can learn the position of the aircraft. According to regulations, civil aviation aircraft must turn on their transponders when flying in the air. No, and its still on the route that appeared several times before. This is not the first time this strange plane has appeared. ?Based on the battalion commanders experience, even with such an old-fashioned radar, he was able to determine that it should be a Boeing 707. ? And the previous few times, it had flown on the route from Tokyo to Manila in an orderly manner. Except that the transponder was not turned on, its performance was no different from that of a civil airliner. ??The radar battalion commander certainly considered the possibility that this was a reconnaissance aircraft. After all, it is a common tactic of the NATO air force to disguise a reconnaissance aircraft as a passenger plane, or to use fighter jets to cover it. In most cases, the reconnaissance party does not have the guts to fire on such a target. ?However, the P3C that is common near the eastern sea area cannot fly at this speed, and the E3 early warning aircraft or RC135 reconnaissance aircraft have obvious changes in appearance, so the echo signal will be larger. ?The battalion commander really couldnt think of anything else besides a Boeing 707. So the superiors just asked them to pay more attention and report back if there was any abnormal behavior on the plane. Of course, for similar situations, the safest way is to take off a fighter jet for visual tracking and confirmation. In this way, the situation can be accurately identified and emergency measures can be made for possible unexpected situations. Such as driving away or disturbing. But for the aviation units in the 1980s and 1990s, even a seemingly simple matter such as an emergency takeoff in the face of air conditions was not easy to organize. Whether it is the aircraft readiness rate, pilot experience or the capability level of the ground handling units, the speed of aircraft dispatch will be limited. Of course there is another important reason, which is money. The aviation force does not have enough funds to maintain 1-2 aircraft in a hot state on standby at any time. Therefore, by the time the aircraft is ready to take off, the target aircraft is already far away from the coastline. ?But today, the situation has changed somewhat. Battal Commander, the plane has deviated from the route. The sharp-eyed radar soldier was the first to notice the anomaly in the target position on the display: It seemed to have lowered its flight altitude, and thenstarted to turn back? "This is not a turnaround..." After all, the battalion commander was well-informed. He knew that this zigzag route was either anti-submarine or reconnaissance. Obviously, it is impossible for an aircraft to conduct anti-submarine warfare at an altitude of 9,000 meters. Set your target, Ill report to my superiors! ??The battalion commander took out the military cap from under the rank on the shoulder of the camouflage uniform and put it on his head, and then quickly ran out of the command room. In this era when even the concept of flat command is immature, the chain of command under normal circumstances is quite complicated. Fortunately, it was not the first time that plane appeared, and the aviation force of the East China Sea Fleet had made some preparations to deal with it within its capabilities. ??The plane has been hovering near that location. Its just that every time you make a 180 turn, you will get slightly closer to the coastline. This gives naval aviation units an opportunity. About twenty minutes later, two J-7HH fighter jets, each carrying a PL-8 air-to-air missile, took off one after another and flew quickly towards the eastern coastline. The J-7HH is actually a J-7B that can carry PL-8 missiles and has been improved for use in high-salt environments. Radar naturally does not exist. Pilots can only rely on a pair of eyes to search for targets and rely heavily on ground command during combat. ?As for the early warning radar in the VHF frequency band, the detection range is far enough and even has certain anti-stealth capabilities, but the detection accuracy is indeed not ideal. ??Coupled with the lack of data link, relying on voice guidance itself has errors. So after guiding the two J-7s to the target, the remaining work can only be done by the two pilots themselves. Fortunately, they were lucky today. The weather was fine and cloudless, and the sun was in a favorable position. After conducting a search for about 10 minutes, wingman Chen Haisheng suddenly saw the dazzling reflection of the metal skin under the light at the low 8 o''clock position of his aircraft. I saw it! About the update: I have been on a business trip these days, so I can only update twice a day for the time being. There should be another wave of updates after I return next week. In addition, I am considering whether to consolidate the update time around five o''clock in the afternoon. (End of this chapter) Chapter 99 Rebirth of Turbojet 14 (Part 1) (2-in-1) Chapter 99 The Rebirth of Turbojet 14 (Part 1) (2-in-1) After determining the target position, the two aircraft simultaneously performed a roll away and soon came to the vicinity of the suspicious aircraft. As usual, they sandwiched the target one to the left and one to the right for accompanying flight confirmation. . "Eagle 01 reports that we have discovered an aircraft..." Lin Kang, the lead pilot, looked at the aircraft not far away through the cockpit glass with a narrow field of vision. On the surface, this looks like an ordinary Boeing 707, but the stars and stripes on the vertical tail and the eye-catching letters "WR" under the flag undoubtedly indicate that it belongs to the US Air Force. ??Although the entire Chinese aviation force does not have a serious special aircraft at this time, Lin Kang, who has served for nearly 20 years, has never given up using various channels to collect various information about the imaginary enemy air force. Although this is supposed to be the job of intelligence services, not fighter pilots. ?This gives him some relatively obvious advantages when conducting similar accompanying flight verification tasks. ?For example, at this moment, he knew that "WR" represented the 93rd Air Control Wing from Georgia. But he did not find a similar model in his memory. After slightly lowering the altitude, Lin Kang finally saw the huge long fairing under the belly of the opponent''s aircraft. A reconnaissance aircraft on the Boeing 707 platform, it should be an electronic reconnaissance model, but it is not RC135. This is the first time I have encountered it. Understood, keep flying with it, and report immediately if it makes any further movements. ??A slightly nervous voice came from the radio. In fact, if the near-face-breaking conflict at the beginning of the year hadn''t woken up some people, there might not even have been an emergency takeoff in the face of aerial reconnaissance. ?The Chinese military, which is relatively immature in the field of sea and air confrontation, is actually not ready to face similar incidents in terms of technology and experience. ?Like pilots of Rincons generation, they do not lack courage. But there is only courage. Courage alone is not enough. Compared with clearly defined territorial boundaries, the situation in the maritime and air domains is much more troublesome. The legal status of the airspace over the exclusive economic zone is a rather complex issue. There is no doubt that this is not airspace. Relevant provisions of international law state that flying or navigation in this area must respect the sovereignty, national defense and security of the other country, etc. However, these vague and metaphysical provisions are not operable. ?Hence, when countries face similar situations, they generally use non-force means to interfere and expel. Non-force means. It sounds harmonious and much safer. But just like in martial arts novels, the level required to open mountains and crack rocks is often not as good as the ability to retract and release freely. In actual operation, this is much more difficult than firing down a target. The plane still maintained its original route after turning a 180 turn. Requesting interference with the targets flight path! ?Lin Kang shouted into the radio. Whether it is from the perspective of national dignity or intelligence security, he is unwilling to allow such a reconnaissance aircraft to fly for a long time more than 100 kilometers away from the coastline. ? There was a rustling sound from the earphones for a few seconds, and then a steady voice. Requesting permission, but the other party has not entered the airspace and cannot use weapons! Lin Kang naturally understood the relevant principles, but the commander of the 4th HNA Division on the other side of the radio was still worried that his best pilot would be impulsive, so he emphasized it again: Also, be sure to keep yourself safe! ?Lin Kangs mind flashed through many cases he had seen in books or internal materials like a revolving lantern. Most of them came from the Soviet Air Force. ?In addition to more extreme cases such as the scalpel in the Barents Sea, the Soviets, who were extremely experienced in confrontation, naturally had other ways to deal with provocations from the NATO air force. ?For example, for heavy aircraft like Su-27 or MiG-25, when two engines with a total thrust of more than 20 tons turn on afterburner, the airflow ejected will affect most aircraft. ?Lin Kang didnt know if his little plane could do it, but he decided to give it a try. ?After a brief communication with Chen Haisheng on the other side, he adjusted the position and attitude of the aircraft, and pushed the throttle lever to the end with his left hand. The turbojet 7BM is really not an engine with excellent performance. The number displayed on the tachometer increased unhurriedly, which made the J-7''s action of passing by the reconnaissance aircraft almost lack of any aggression. ?Lin Kang again controlled the aircraft to keep flying in front of the target, but the mere 6.5 tons of afterburner thrust was really difficult to effectively interfere with a Boeing 707 platform aircraft. Correspondingly, the atmosphere in the cockpit of the E8C was much more relaxed. ?They were certainly no strangers to Lin Kangs actions to interfere with flight. Before 1991, the two had faced similar scenes countless times over Eastern Europe. But at that time, the situation was much more intense. ?Even once, an RC135 piloted by the captain, Lieutenant Colonel Albert, was interfered by a Su-27 at close range, and both right engines stopped in the air. ? It was 1988, and the entire crew was only about to die on the spot in the last 300 meters. Look at this little plane, it seems to be saying hello to us in a friendly way. ?The co-pilot looked at the fighter jet that looked very similar to the MiG-21 not far in front of him and couldn''t help but reveal a bright smile. Then it seems we should return the gift as a sign of friendship? ??Albert gently turned the steering wheel in his hand left and right, making a motion of shaking the wings. The three people in the cockpit burst into cheerful laughter. "I think the pilot must have received our goodwill." The flight engineer behind said. Lin Kang in the J-7 cockpit looked through the rearview mirror and saw the aircraft behind him shaking its wings provocatively. This movement made by a 150-ton aircraft cannot be called agile, but it undoubtedly means that it is in control of its flying attitude and is not affected at all. As if he was laughing at the little plane in front of him that was overestimating its capabilities. "grass" Even though Lin Kang had been well-educated since he was a child, he couldn''t help but curse in a low voice when he saw this scene. He reached out and touched the emergency fuel release switch in the air. When a large amount of aviation kerosene is released in a concentrated manner, it will give the following aircraft the feeling of being peeed. In addition to the psychological impact, it will also interfere with the pilot''s vision. Before flipping the switch, Lin Kang habitually looked at the plane''s fuel gauge. ?At the same time, the division commanders voice came from the radio again. Eagle, report remaining fuel. ? ?Lin Kang exhaled a sigh of relief. The remaining 40%. As a light fighter, the fuel capacity of the J-7HH has always been a huge problem. The maximum takeoff weight of the J-7 is only about 8.5 tons. In the transition state with an auxiliary fuel tank, the ideal range is less than 1,400 kilometers. By comparison, the Su-27 can carry nearly 9 tons of fuel in the aircraft alone, which is heavier than the entire J-7 aircraft. ?Excluding the distance from the airport to the mission airspace, as well as the extremely high fuel consumption when flying with afterburner. There is really not enough fuel for Lin Kang to squander. Even according to the current situation, they will have to return in about ten minutes. Obviously the reconnaissance plane behind saw this and showed no urgency at all. Get ready to return, there will be two aircraft from the air force brotherhood to take over your flight. The division commanders voice was also full of reluctance ??The Air Force took off with the same two J-7s, and they also encountered the same problems as Lin Kang and Chen Haisheng. Facing the reconnaissance plane that was obviously malicious and loitering not far from their door, they had no choice. But if you are not willing to give in, what can you do? The performance of the aircraft will not change due to the subjective initiative of the pilot. J-7, in any case, can no longer hold up the sky of a huge country like China. Compared to the earth-shattering incident at the beginning of the year, this incident did not cause much of a stir in the media on both sides of the Pacific. For most people, this is a very ordinary day. But for others, it is not. The news quickly spread within the scope permitted by the confidentiality level. Anyone with a clear eye can see that there is no problem with the naval aviation''s response. The problem is not having the right equipment. ?No matter how good the Su-27 is, if it does not have the corresponding aviation industry strength to provide maintenance and support, it will not be able to exert sufficient combat effectiveness. Even flying around is very difficult. And the aircraft produced by ourselves are really difficult to use. About a week later, at the end of a regular meeting, Yang Fenghata produced a press release. Of course, what happened will not be written clearly in it, but people here have basically heard about it. What makes everyone feel dazzled is the last sentence of the draft. Make full use of the accessibility of existing equipment, solve problems such as equipment deployment, network chain construction, and multi-domain support, and maximize the combat performance of equipment to promote the overall improvement of combat effectiveness..." ?Although it talks about positive things like military training and preparation for war on the surface, there is bitterness and helplessness between the lines. Comrades, every word here is poking our spines... ??Yang Fenghata looked at the members of the Turbojet 14 modification attack team and said in a slightly sad tone. The entire venue was silent for a moment. It was Chang Haonan''s intention to show the draft, but it was more appropriate for Yang Fenghao to say some things. Compared with high-profile mobilization rallies, this method has obviously better motivational effect. Just as the saying goes, you should be polite after hearing it, and be brave after knowing your shame. Although no one took the initiative to express their opinions, the work efficiency of the entire research team has improved to a higher level. The next night, the Mach number contour maps and wall limit flow spectra corresponding to several typical rotor/stator blade stacking line designs were sent to Chang Haonan, who had been waiting for a long time. In the original plan, this should be the last part of the regular research step. After this, you can start to optimize the compressor blade design to maximize the surge margin. However, he did not feel any relief from this. Because last week, Du Yishan from the capital contacted 601 schools. A research team from Bingcheng University of Technology found that flow loss can be reduced by opening a gap between the pressure surface and suction surface of the compressor blade. Relevant experimental data were quickly mailed to Chang Haonan. After receiving the information, he spent one night conducting a simulation on an ideal stage35 compressor model. Combined with the data provided by Associate Professor Zai Fei, it can be determined that this phenomenon is real. However, it is always simple to study a single independent variable on an ideal model. To apply it to actual design, more realistic factors need to be considered. ?Especially after the turbojet 14 compressor blades were improved by Chang Haonan, they will inevitably have a large number of bending, twisting and sweeping designs, which in turn leads to a huge gap between the actual flow field and the ideal two-dimensional flow field. Looking at the data submitted in front of him, Chang Haonan faced such happy troubles for the first time There are so many ways to improve performance, should we use them all? Compared with the swept design which focuses on increasing surge margin, blade slits can also reduce the total pressure recovery loss caused by the compressor, especially at a certain angle of attack. Although it has little effect on the maximum thrust of the engine on paper, it can significantly improve the performance and stability under harsh air intake conditions. This is what the J-8-3 needs most at present. Only children make choices As an adult, he naturally wants it all. But on the other hand, Chang Haonan had never come into contact with jet slit-related theories even before his rebirth. This was completely new knowledge to him. Since the current project being carried out by the system only considers modifying the blade shape, if you want to temporarily add a new independent variable, you have to rely entirely on yourself. With Chang Haonan''s current proficiency in numerical simulation, this job is not impossible. But without the work efficiency buff provided by the system, there is no guarantee of progress. Fortunately, this trouble did not last long. Because early the next morning, Yao Mengna found Chang Haonan who had been sleeping in the computer room for two nights. Junior, regarding the issue of blade slits, I have a few areas where I need your help. Help? ?The sleepy-eyed Chang Haonan turned his head back in confusion, his bloodshot eyes startling the latter. After a few seconds, he finally came to his senses: Wait...meaning you have already studied it before? This is definitely an unexpected surprise. Well, actually before Teacher Du contacted us, I had already seen the article published by Tao Feis research group in a journal, and I have been studying it for about two weeks, but..." Speaking of this, Yao Mengna was a little embarrassed and smoothed her hair: Its just that Ive been stuck in the accelerated convergence part of the simulation method, so the data I got is very limited. Originally, I wanted to see if I could complete research on a topic independently without relying on your guidance, but...compared to my own obsession or face, the progress of the project is more important. ?Although Yao Mengna found many reasons to convince herself not to ask Chang Haonan for help, people can''t deceive themselves. ?She is very clear that the most important reason is her obsession to prove her ability Even if you cant compare, you cant be left too far behind. ? What really made Yao Mengna decide to let go of this was the draft that Yang Fenghao took out at the end of yesterday''s meeting. When she read the last paragraph, she realized that she seemed a little too narrow-minded. There are many ways to prove yourself, and there are many opportunities. At this critical moment, we must focus on the overall situation. I should have told you about this when I received Teacher Dus call last week. Im sorry. No, its okay, or rather, you came at the right time. ?Chang Haonan stood up and strode to Yao Mengna''s side at the door: Take me to see your results. After such a long period of cooperation, he probably knows Yao Mengnas abilities in the field of numerical calculations. Since the other party said that the part he was stuck on was that he did not know how to accelerate convergence, it means that the entire simulation idea should be OK. If improvements can be made on this basis, the amount of work that needs to be done will be much smaller. Perhaps even some useful analytical conclusions may have been drawn. The two of them soon arrived at another computer room not far away. Its all in this. Yao Mengna pointed to the workstation that was still on and in the process of calculation: Im really new to numerical simulation in the unix environment. Can youcan you slow down the operation a little bit later? I want to see where my problem lies. "Of course you can, but... don''t rush the operation. I''ll take a look at the data you calculated during this period." Chang Haonan said as he walked forward, stopped the ongoing simulation process, and called up the previous results for analysis. (End of this chapter) Chapter 100 Rebirth of Turbojet 14 (Part 2) (2-in-1) Chapter 100 The Rebirth of Turbojet 14 (Part 2) (2-in-1) ?Chang Haonan has good luck. Or it can be said that Yao Mengna is very lucky. Although due to the problem of convergence speed, she did not actually get many complete results. ?However, Chang Haonan still found an unexpected joy in it. And it is done with the naked eye. ?In the numerical simulation of aeroengines, due to the very complex structure of the multi-stage axial flow compressor, it is very difficult to directly perform numerical calculations on the multi-stage axial flow compressor, and there are many limitations in modeling and calculation. Even if it is calculated by force, it will not be possible to understand the vast number of results overnight. Fortunately, after this period of training, Yao Mengna has become very proficient in model simplification. Since the multi-stage axial flow compressor is composed of many "stages" with similar structures, the interaction between multiple stages can be ignored during the study, and a single stage can be calculated and analyzed. Optimizing a single stage means that the entire compressor has been optimized. The flow inside a single stage is still relatively complex, and further simplification is usually required. Neglecting the work done by centrifugal force on the fluid, and assuming that the flow at different heights along the radial direction is the same, the three-dimensional flow in the "stage" can be simplified into two-dimensional primitives. level flow. For most aerospace engines, including turbojet 14, a basic stage of the compressor consists of a moving blade cascade and a stationary blade cascade. Hence this numerical simulation, which is only half-way through, the research object is very clear. ?Chang Haonan did not spend too long to discover the key points. Senior sister, go and call the forest workers. The priority of the blade slit problem needs to be raised. If our efficiency is high enough, we should still have time to use it on the turbojet 14. ??As he spoke, he took out a notebook and pencil from his pocket and began to record some key data on the screen, obviously preparing for a big fight. "ah?" ? Yao Mengna, who felt guilty that she had delayed her progress, had been standing cautiously behind her. After hearing Chang Haonan''s request, she raised her head unexpectedly and was stunned for about half a second before she realized what she was doing. Oh...Okay, Ill go right away! After saying that, he turned around and ran out. ?In her expectation, Chang Haonan would start making modifications immediately after reading the code. If he was in a good mood, he would probably make modifications while explaining his ideas to her. However, she never expected that the other party would find something useful directly from the incomplete calculation results that she thought were of little value. She recalled that the first thing Chang Haonan did after entering the door was to stop calculating and then immediately start analyzing the data. Junior brother, does he actually trust me so much... Yao Mengna felt a touch of emotion in her heart, her steps became more brisk, and her originally heavy mood became much lighter. Even after he opened the office door, his tone when talking to Lin Shikuan couldn''t help but have a slightly rising tone: Forest engineer, Chang Bo wants you to come over there! Oh, okay, Ill go gather a few other people. ?Lin Shikuan quickly got up and went to find his other subordinates. ?From Yao Mengna''s unstoppable smile, he logically concluded that there must be something good going on. Perhaps the progress of compressor improvement has accelerated again? The research progress is ahead of the schedule. He could not even dream of it before. But it is indeed something that has happened frequently in the past month or two. So much so that although the wings and power of Project 83 have been or are undergoing radical improvements, the overall progress of the project has not fallen behind because of this. ?Thinking of this, Lin Shikuan''s own mood improved a lot, because the fatigue caused by working overtime in recent days was almost gone. Although since Chang Haonan and Yao Mengna came to this computing center, his status as the team leader has almost existed in name only, but after all, he has legs to hug, and other people in the 83 Project have gradually changed their view of their digital design team from contempt to contempt. Got respect. ?In this case, not only did he not feel like he was being "emptied out" at all, he even wished he could give up his position in exchange for the two great gods being able to protect him all the time. In short, on this ordinary morning, the entire computing center seemed to be filled with a happy atmosphere. ?So when Yao Mengna and Lin Shikuan and others returned to the computer room, Chang Haonan turned around and saw several smiling faces appearing side by side. ?He tugged at his hair in confusion. You...are you happy about anything today? After all, in recent times, as the deputy leader of the temporary research team who actually presides over the work, he himself feels that he has gone too far in pushing team members. ?Especially for a few people in the digital design team, they are under a lot of pressure because they have to look down and not look up every day. It has been a long time since I showed such a relaxed smile. ?Chang Haonan certainly didnt know how much drama Yao Mengna had added to herself in just a few minutes. Because at the beginning, he really looked at the data with the mentality of digging for gold in shit. The original purpose is just to see where the latter has been calculated, so that subsequent improvements can be made. It''s just that he actually found it. The progress has been accelerated again, of course its worth being happy about. Lin Shikuan replied without thinking: We are ready for the next stage of work! Chang Haonan nodded, assuming that Yao Mengna had just understood what he was doing and told Lin Shikuan and others, so he didn''t ask any more questions, turned around and walked to the blackboard on the other side of the computer room to prepare for allocating tasks. Having a positive attitude is always a good thing. Now we need to put aside the work at hand. Chang Haonan knocked on the blackboard, attracting everyones attention: "I need to calculate the Mach number distribution, static pressure distribution and limit streamlines of several typical design points under the two-dimensional element level model before and after the gap between the blade pressure surface and the suction surface, plus the blade tail The entropy distribution of edge. The specific calculation method is no different from before, and because it is a simplified model, it should not be difficult, but the workload will be more. As soon as Chang Haonan said this, he heard a gasp of air coming from behind him. ifies The smiles of Lin Shikuan and others froze on their faces: Both moving parts and stationary parts are counted? The moving blade cascade and the stationary blade cascade play different roles in the compressor, so the previous calculation of the wall limit flow spectrum of the blades with different swept designs brought almost double the workload, which was very torturous. No need, just count Jingzi. Chang Haonan made a gesture on the compressor structure diagram hanging on the blackboard: I looked at my sisters previous calculation results. In the model of the same compressor stage, the effects of stator slits and mover slits are almost the same, so she helped us reduce the workload by half. "I" Yao Mengna had an expression on her face like "Why didn''t I know I was so powerful?" But I felt the grateful looks from everyone, and knew that now was not the time to explain. After calming down a little, she gradually realized that the gap between herself and this junior brother was not just in the ability of numerical simulation. Whats more important is the mentality. Because they are too eager to prove themselves, they only focus on the goal at the end point, but ignore other results that may occur during the research process. ?Thinking of this, Yao Mengna''s expression became serious.????She knew that she had not been like this before. ??If we follow the plot analogy of martial arts novels, her recent state is a bit like being possessed. If it cannot be discovered and corrected in time, the development may even lead her to go astray on the road of scientific research. ?Yao Mengna looked at the keyboard in front of her and breathed a sigh of relief: Fortunately ?Just as Yao Mengna was introspecting, Chang Haonan, who had been arranging tasks smoothly just now, suddenly stopped. "etc" ?While muttering to himself, he walked back to the monitor of the workstation and looked at the data on the screen again. A few minutes later, he took out his pencil and notebook again, and began to calculate on them while everyone behind him looked at them blankly. It is of course impossible to calculate the complex numerical simulation process by hand, but the post-processing of the numerical simulation results is still within the range that the human brain can complete. ? Many people have a feeling when they are in school that even though a question, especially a difficult problem, has been solved, they can still deepen their understanding in the process of explaining it to others. Even many details that you didnt notice when solving problems will be noticed again. ?Chang Haonan has just entered such a state. In a flash of inspiration, he seemed to have thought of a better way of grooving. Ten minutes later, Chang Haonan stopped writing. Senior sister, according to the research of the research group at Bingcheng University of Technology, after the blades are slotted, will there be obvious performance advantages only when the angle of attack is relatively large? ?Although she didnt know what she was going to do, Yao Mengna still nodded. She has almost memorized the content of that article: "When Ma=0.4 and the incoming flow angle of attack is 0, the total pressure recovery coefficient is only improved by 7% compared to not notching, and if the Mach number is increased to Ma=0.6 , when the incoming flow angle of attack is 0, the total pressure recovery coefficient of the slotted blade is reduced by about 1%. " Thats right. Chang Haonan excitedly slapped the pencil in his hand on the table: Comrades, I need to revise the task I just assigned! After finishing speaking, he came to the blackboard again. The basic principle of this jet gap is that the mixing loss competes with the blowout effect. When the mixing loss is greater, the total pressure recovery coefficient decreases, and vice versa. Chang Haonan said as he picked up the chalk and slightly modified the blade diagram on the blackboard, changing the original straight jet slit into two corners. We can use these two arcs with different concave and convex directions to form an S-shaped jet slit. The S-shaped slit is a convergent expansion channel, which can further accelerate the airflow and improve the jet effect. Moreover, the modified airflow inlet and outlet direction is closer to the mainstream direction, and can also reduce the mixing loss. ?The people below stared dumbfoundedly at Chang Haonan, who was in front of the blackboard, modifying the design on the spot using pen calculations. They have become accustomed to this person''s various magical operations, but they still feel a sense of unreality when faced with this situation. In the end, it was Yao Mengna who understood her meaning first: So this S-shaped jet slit can have a very good effect even in level flight? Thats right. ?Chang Haonan''s own tone was also filled with excitement. Such a flash of inspiration is of course not uncommon when there is help from the system. ??But this time, the research on jet seams was not included in the system generation project. ??And it was not a field that he had been involved in before his rebirth. In other words, it appeared entirely due to the improvement of Chang Haonan''s own abilities. ?After such an "epiphany", Chang Haonan became more comfortable with the improvement work of the turbojet 14. ?According to the original fault analysis, the location where the surge was induced was above the secondary rotor blades of the high-pressure compressor. ?Hence, his subsequent curved sweep design optimization was mainly aimed at the moving blade cascades of a total of 7-stage high-pressure compressors, and no overly complicated modifications were made to the stationary blade cascades whose main function is to compress the incoming flow. As it happens, that magical S-shaped jet slit can be set on the stator blade cascade. This makes it possible to divide labor in two parallel ways. Development progress*2 ?So only half a month later, an almost brand-new turbojet 14 engine design was finally presented to everyone. Although due to project schedule issues, the design of the combustion chamber and turbine has not changed. However, as one of the three major components of the core engine and the most criticized part of the turbojet 14 in the past, the high-pressure compressor part has been completely changed. ?Submitted together with the design plan, there were also schematic diagrams of the compressor performance and flow field structure that Chang Haonan and his digital design team spent more than a week working out. And the most fundamental purpose of this large-scale design improvementcompressor universal characteristic curve. Compared with before the improvement, the surge margin has increased by a full 25%. Even if severe operating conditions similar to those of the last No. 01 prototype occur again, the new turbojet 14 engine can maintain normal operation on the common operating line without causing surge. ??More importantly, after a lot of modifications, the compressor design of the turbojet 14 no longer shows any trace of the P11-300 and "Spey". It truly becomes our own engine. Yan Zhongcheng stretched out his hand and tremblingly touched the computer screen with the overall design drawing of the compressor. This is Kunlun. This should be our Kunlun Chang Haonan stood aside and looked quietly at Yan Zhongcheng, who was almost in tears. ?In the original timeline, due to limitations of objective conditions, although the turbojet 14 engine was not discontinued along with the 83rd Project, it was not until almost ten years later that a relatively stable design was developed. By that time, the J-8 series had been discontinued, and the Chinese Air Force no longer needed a turbojet engine with a thrust of 7.5 tons. ??Although the QD series gas turbines based on the turbojet 14-core engine have achieved certain success in the field of power generation, it can be regarded as giving this ill-fated aerospace engineering project a justifiable end. But there are still regrets after all. Such a regret will never happen again. There can be no more. The business trip is over, updates will be resumed next week (End of this chapter) Chapter 101 Can I go to the air show? Chapter 101 Can I go to the air show? ?After confirming that there were no problems with the improved design plan, Yan Zhongcheng signed his name on the document confirming the production of two improved turbojet 14 engine prototypes. As mentioned before, due to the very complex structure of the multi-stage axial flow compressor, even Chang Haonan has no way to conduct accurate calculations and simulations of a jet engine with a complete structure and without model simplification. So the specific performance of this new reborn turbojet 14 still needs to go through a series of tests to know. The two prototypes, code-named 010001 and 010002 respectively, were produced for high-altitude and aerial platform testing respectively. Generally speaking, the time required for this process can range from a few months to a few years. Fortunately, the turbojet 14 that has undergone major changes is still a turbojet 14 after all. Although the test items are indispensable, the test process will definitely be faster than A truly new engine is faster. If you count the time ?Chang Haonan was stunned for a moment, and then realized that he didn''t even know what day it was today. Habit is indeed a terrible thing. Because he has always grabbed his phone to look at the date for the past ten years, so even though he has been reborn for several months, he still often forgets the specific date. ?Especially in recent times, he has been working overtime continuously in a windowless computer room, which has made him almost lose the concept of day and night. Thinking of this, Chang Haonan turned his head and prepared to take a look at the calendar hanging behind him. ?At this time, Yao Mengna was standing behind him, and she happened to be casting her gaze in this direction. The two of them looked at each other. ?The other person''s height is almost the same as him, completely blocking his sight. ?But before Chang Haonan could adjust his position, Yao Mengna lowered her head as if she knew what he wanted to do. Today is September 13th. Chang Haonan quickly ran through the basic processes of ground and air simulations in his mind, as well as how long each project is expected to take. If everything goes well, we should still be able to catch up Because he was so focused on thinking, he didn''t even notice that he whispered what he was thinking. What can catch up? ?Yang Fenghata, who was standing nearby, asked in a somewhat puzzled tone: If you are talking about the finalization node, there are still nearly two years left. With your efficiency after joining the project, it shouldnt be a problem, so dont worry. After speaking, he patted Chang Haonan on the shoulder, indicating that he could relax. ?The stereotype that Yang Fenghao refers to naturally refers to the design stereotype. According to the "Conventional Weapons and Equipment Development Procedures" issued by the four ministries and commissions in 1995, the development of conventional weapons and equipment is divided into the demonstration stage, program demonstration, engineering development stage, design finalization stage and production finalization stage. ?Chang Haonan and the others are currently in the engineering development stage. Under normal circumstances, after the design is finalized, small batch trial production can be arranged and equipped with troops. As for the finalization of production, it can only be completed after problems are continuously discovered and solved during the process. It is difficult to give a specific time point. Taking into account the production process, sometimes the replacement speed is very fast. Therefore, in actual operation, the small batch production of many weapons and equipment models is not "small" at all, and there may even be situations where the products have completed the entire life cycle and are withdrawn from active service but have not yet completed production. So in most cases, when a project reaches the design finalization stage, it can basically be considered complete. Other people around him also cast their eyes with affirmation and approval. If the modification of the wing design only made him somewhat famous within the 601 Institute, then the design modification of the Turbojet 14 spread the name Chang Haonan to almost the entire project team of the 83rd Project. . "Uh... no, there is really no big problem with the design." Chang Haonan shook his head and said that this was not what he was thinking about: Im wondering, if the test results of the turbojet 14 go well enough, will the J-8-3 be able to catch up with this years air show? Thats right, this is the main reason why Chang Haonan has been keeping a close eye on the progress of the August 3rd Project from the beginning. Xiangzhou Air Show, also known as China International Aerospace Expo, will become one of the top six air shows in the world in the future. But when we first applied for this air show, the core starting point was actually that Xiangzhou City, with a population of just over 900,000, wanted to apply for the construction of a super-standard airport with a 4,000-meter runway. ?There has to be a reason. ? As a result, Jinwan International Airport was successfully completed, but the air show that served as the reason was not officially approved until 1995. So much so that the domestic aviation unit was almost unprepared for this. In the end, they only sent a J-7MG, the export version of the J-7E, for a flight demonstration, and a J-8IIM, which had just made its first flight at the beginning of the year, for a ground display. ?Even so, Chang Haonan still clearly remembers the excitement and excitement when he and a group of classmates saw the J-8IIM in a magazine. After all, this aircraft using Russian-made avionics can launch R27 air-to-air missiles like the Su-27. Later, when I started working, I learned that a J-8IIM flight show was originally scheduled. However, the left engine of the exhibiting aircraft stopped mid-air during the transfer flight to Xiangzhou, and had to go to Jiangcheng for an emergency landing. In the end, another aircraft temporarily took over. , the flight show was naturally cancelled. ? It was not until the second air show in 1998 that the J-8IIM and the J-H-7, known as FBC1, made up for this late performance. Therefore, in the original timeline, the most dazzling stars of the first Xiangzhou Air Show were a Su-27 and a Su-30MK on static display. But this time, the situation is different after all. The heavily modified J-8-3 and the turbojet 14 with more stable performance. ?Although it is still unable to fully compete with the third-generation heavy fighter on the card, at least it will not be completely overshadowed by others. Air show? Everyones first thought is basically that Chang Haonan got the time wrong because he worked continuously for a long time. When mentioning air shows in this era, the first thing that comes to mind is definitely the Paris Air Show and Moscow Air Show held in odd years, and the Farnborough Air Show and Singapore Air Show held in even years. ? Among them, the Singapore Air Show is held in February of even-numbered years, so it is impossible to make a mistake. However, the Farnborough Air Show in the United Kingdom, which is held from the first to the second week of September every year, is closer in time. But the Farnborough Air Show was just held two days ago? Someone next to me reminded him in a low voice. Its not Farnborough, Im talking about Is it Xiangzhou? ??Yang Fenghata was the first to react. Yes, Xiangzhou Air Show. ?Chang Haonan nodded and continued: Our August 3rd Project is a competitive machine that has been personally instructed. If it can be unveiled at our countrys first air show, it will definitely be very exciting. Hearing this sentence, the eyes of everyone present instantly lit up. Who doesnt want the aircraft he or she develops to attract worldwide attention? "If I remember correctly, the Xiangzhou Air Show should open in early November, which means there is still time left for us..." Less than two months. (End of this chapter) Chapter 102 Production preparation Chapter 102 Production Preparation ??When Yang Fenghao said that he only had less than two months to prepare, many people''s expressions turned to regret. Although the aircraft for the air show do not have to be finalized. In fact, it is a common practice in countries all over the world to display models that are in the process of flight testing. However, it is still necessary to ensure that the model has basic stability and reliability. sex. Its originally about showing your face, but it would be bad if your **** is exposed. ?However, it is already mid-September, and they have not even started manufacturing the prototype of the improved turbojet 14. ?Looks like its going to be hard to catch up But no one was willing. It would be fine if no one mentioned it, but after Chang Haonan mentioned the matter of participating in the air show just now, the idea has taken root in everyone''s mind. I think Comrade Chang Haonans idea is completely feasible. After a long time, Liu Ming, the deputy chief designer on the other side of the room, was the first to speak up: We can be prepared for this matter with both hands. If the test work of the improved turbojet 14 goes well, then after installation, we can at least catch up to the end of the air show, which is enough for us to conduct a flight show. Hearing these words, the people in Institute 606 all showed somewhat embarrassed expressions. The words "all goes well" have never happened in China''s aviation power field. Although the improvement work this time is progressing very quickly with the help of strong foreign aid, the expectations set by everyone are still relatively realistic. ?However, Liu Ming naturally prepared a second plan: "In addition, even if the testing work of the improved turbojet 14 has not been completed by then, we can still settle for the next best thing and use the old model engine to transfer the aircraft to the ground for ground display, which can be regarded as giving China a chance to compete. " The atmosphere in the conference room suddenly became lively again. This should work Indeed, the original turbojet 14 is still fine if it is just flying around..." The ground demonstration is also here, which at least shows that we can still build the aircraft even without the help of the Americans..." We are all engaged in military industry and have some understanding of the current situation. In the conflict at the beginning of the year, facing a powerful enemy at its peak, we were indeed at a disadvantage. So now we need an opportunity to boost people''s hearts and morale. ??The Xiangzhou Air Show is obviously a good choice. ?Yang Fenghao also turned to look at Chang Haonan: What do you think? Chang Haonans plan is naturally to complete the simulation test of the new engine as quickly as possible, and then conduct a flight demonstration in one step. But he never liked to talk too much, and the plan proposed by Liu Ming also took into account various situations and there was no problem, so he nodded: We must prepare for the best and prepare for the worst. After a pause for about a second, he continued to explain: That is to say, the prototype production and testing of the new turbojet 14 engine must be carried out as quickly as possible, but the psychological construction must be done so that it can only be displayed on the ground. ?Yang Fenghao, Liu Ming and Yan Zhongcheng had a brief exchange and all expressed their agreement. Then, I will communicate this matter with my superiors. Yang Fenghaos tone became serious: The 606 Institute pays attention to the connection with the 410 Factory, and the production progress of the two test prototypes needs to be improved. Yan Zhongcheng handed the document he just signed to the secretary next to him, then stood up: No problem, because this improvement only involves the compressor part, so the 410 Factory only needs to re-manufacture the compressor part according to the new plan, and I will handle the docking work myself. With the issuance of instructions one after another, the entire Project 83 project team started to get busy again. According to Yang Fenghao and Yan Zhongcheng, Chang Haonan actually does not need to do anything during the prototype production stage, so he can rest for a few days. After all, anyone can see that during this continuous period of time, he is actually the one with the biggest workload. "You are now a major contributor to our August 3rd Project. If I tire you out, Lao Du will probably come to me to fight for your life." ?Yang Fenghao held the teacup and said to Chang Haonan cheerfully. Since he took over the charge of the August 3rd Project, he has not been as happy and relaxed as he has been in recent times for nearly ten years. Although they discovered two design flaws in the wing and engine in just over two months, the problem was solved quickly and easily because of Chang Haonan. ?Chang Haonan did not reject the kindness of the two seniors, but he still made a new request: Its okay to take two days off, but I still want to find some time to go to Factory 410 to see the production and manufacturing process of aviation engines. In his last life, he did not have much knowledge about the field of aviation manufacturing. As a military screw, this is understandable. He only needs to complete his own work. But now, as his influence on the entire Chinese aviation industry is growing, there are naturally more and more things that need to be paid attention to. ?Of course, for the original turbojet 14, the manufacturing process and material level are not considered shortcomings - after all, there is still a more backward design level to cover the bottom. But for the improved turbojet 14 and the turbofan 10 that must be overcome in the future, production and manufacturing are a completely unavoidable problem. You must prepare for a rainy day. ??Although Yan Zhongcheng didnt know what Chang Haonan was thinking, he still nodded decisively: After all, you are the main designer of the new turbojet 14. Of course there is no problem in going to the 410 factory. However, if you want to enter the production workshop, considering safety issues, no matter who we are, we must follow the arrangements of the person in charge of the workshop. Thanks to the work of the digital design team, the improved compressor has been fully parameterized during the design process. Therefore, the connection between the 606 Institute and the 410 Factory was very smooth. Chang Haonan only rested for two days before he was informed Production work on the prototype has officially begun. The person responsible for taking Chang Haonan to visit the production process was Zhong Shihong, who had met him once before. The latter is also a member of the turbojet 14 modification attack team, but because Chang Haonan was mainly responsible for numerical calculations and blade design, he did not have much contact with him. Is this the production of new compressor blades? Chang Haonan looked at the CNC machine tool in front of him. A piece of blank was being processed inside, but he couldn''t see what the product was yet. Thats right, its a compressor rotor blade. Zhong Shihong nodded: "Actually, you also know that because the compressor is a cold-end component, it is generally not difficult to produce. It is mainly milling. The key points are mainly machining accuracy and stress relief. Relatively speaking, it is still a hot-end component like a turbine. End parts are more difficult to process, but there are currently no production arrangements for this. It doesnt matter, Im just here to intuitively experience the production process of aero-engines, so that I can consider the convenience of manufacturing in advance when designing in the future. It would be best if possible. While the two were talking, Chang Haonan noticed out of the corner of his eye that in an inconspicuous corner of the workshop, there seemed to be a lot of finished products piled up. But the blade detection area should be in the other direction. What are those? Chang Haonan asked, pointing in the direction of the corner. Additional updates will be made in the afternoon as usual (End of this chapter) Chapter 103 Creating Difficulties (Additional update 18 for monthly ticket financier flankerr) Chapter 103: Creating Difficulties (Update 18 for monthly ticket financier flankerr) Following the direction pointed by Chang Haonan, Zhong Shihong quickly saw the leaves piled in the corner: Oh, those are basically waste products that have been damaged or failed to pass the test, and are judged to be unusable. Scrap? Chang Haonan was stunned: There are so many? ?Although it was far away, he could still vaguely see clearly. There were at least hundreds of leaves there. For a factory with full production capacity, this quantity may not be much, but in recent years, the army''s order quantity has been insufficient, and production has to be divided between Zhucheng and Shengjing, so a large part of the 410 factory''s production capacity is at in idle state. After this calculation, the yield rate does not seem to be optimistic. Is it said that the production of compressor blades is not difficult? Wellits actually not much. These are the amounts accumulated in the past six months, and they also include Turbojet 13 and Turbojet 7. They are all piled up there. Zhong Shihong explained as he took Chang Haonan over directly, and then picked up a leaf from the ground: Originally, these things should be disposed of regularly, but one of our engineers is currently studying the use of surfacing technology to repair these damaged scraps, so we left some of them for him. Are these just part of it? The latter was a little dumbfounded by the spectacular sight in front of him. After a while, he asked: Then what is our overall yield rate? Well...the pass rate of one-time CMM inspection is about 60%, but there is still part of the remaining 40% that can be saved. Overall, it can reach about 80%, and in good times it can reach 85%. As the Minister of Technology, Zhong Shihong naturally knew these data very well and reported the answer almost without thinking. At the same time, he casually handed the blade he just picked up to Chang Haonan. So high? What about these The latter turned it over and looked at the waste product in his hand, but it was really difficult to see what was wrong with the naked eye. The yield rate only considers the processing process. Zhong Shihong fixed the hat on his head: Most of the blades here are damaged during assembly and testing. At present, most compressor blade materials are only martensitic stainless steel, and at most low-grade ordinary titanium materials such as Ti-6Al-4V are used. We are familiar with the milling of these materials, and at most add a few stresses. The release process only affects some production efficiency. "But you know, our country''s aero engines borrow a lot from Soviet design, so some riveting structures are used in the assembly process of blades, discs and casings. The material of these aviation fasteners is generally Soviet-labeled B16 titanium alloy. That is, Ti-3Al-5Mo-4.5V, which is relatively new to us and is prone to problems in production, processing and assembly. " Thats it Chang Haonan understood clearly and secretly wrote down what Zhong Shihong said. Chinas research on titanium alloy materials itself is not too late. Titanium alloys such as TB2 and TC4, which are used in large quantities in the aviation field, were basically domestically produced in the 1960s and 1970s. ?Including the 16 just mentioned by Zhong Shihong, its domestic model TC16 titanium alloy was also born around 1990. But the problem is that just a piece of material is useless. Producing titanium alloy rods is only the first step in a long journey of thousands of miles. To take a step back, even for the latest brands of products such as the United States'' Ti1100 and Russia''s B36, the blanks themselves do not restrict exports. As long as they are willing to spend money, they are not difficult to buy in most countries (such as India). However, each different material, due to its different physical and chemical properties, requires corresponding treatment and processing technology before it can truly become a usable product. These processes are almost impossible to obtain through imitation, and they are also the real technical barriers. Obviously, Factory 410 is stuck in these two links. Subsequently, Chang Haonan visited several other processes under the leadership of Zhong Shihong, but he was always thinking about the pile of waste products just now. Finally, when he saw the riveting assembly process mentioned before, he couldn''t help but ask: "Speaking of which, since our compressor is already a completely new design, shouldn''t we consider abandoning the riveted structure and completely switching to mortise and tenon joints? Moreover, it can also reduce the work of the compressor by forming a transition fit or a small gap fit between the tenon and the tenon groove. The vibration during the time is also higher. Although it was Chang Haonan''s first time to watch the production process of an aero-engine live, he knew very well with the knowledge and experience of later generations that even in Soviet-made engines, the use of rivets as blade fasteners was definitely a gimmick. Coincidentally, this is the engine used in the R11F-300 engine introduced with the J-7. This question really made Zhong Shihong look at Chang Haonan with admiration. At least it shows that the latter is not just coming to the factory to show off, but actually has a certain understanding of production and processing. "Of course we have considered replacing riveting with tenon joints, but the processing of dovetail tenon is very difficult, and the pressure surface tenon as the assembly reference requires broaching, which requires a special combination broach. Due to the ban on sales, currently It is no longer possible to purchase in bulk through formal channels. Obviously, when God closes a door, he often seals the windows. ??So for the Chinese military workers who are groping forward in the ups and downs, if they want to find a way out, they have to find a way to lift the roof. Its forbidden to sell... Chang Haonan raised his head again and looked around, and found that most of the processing equipment here was imported from Germany or Japan. ??Although the famous Paris Coordinating Committee was disbanded in 1994, its list of prohibited items was inherited by the Wassenaar Agreement almost intact, and the embargo pressure faced by China has not diminished. You must know that Batumis embargo list lists nearly 600 more items for China alone than for the Soviet Union before its disintegration. For example, high-precision multi-axis machine tools can be exported to the Soviet Union, but not to China. Yes, in fields such as mechanical processing, there is indeed a big gap between us and developed countries. Zhong Shihongs tone was full of helplessness: We have also tried to use domestic cutting tools to replace imported ones, but neither the processing accuracy nor the service life meet the requirements, and they can only be used to process some things that do not require high precision. Having said this, he turned his head and looked at Chang Haonan next to him, and said half-jokingly: "During this period, I sometimes think, if there is a talent like you in our industry, it will be great." Thats good. Is this... ?Chang Haonan really wanted to say that it might not be impossible. After all, according to the current progress, the development of turbofan 10 will be officially put on the agenda as early as next year or the year after next. At that time, there must be many production and manufacturing problems that need to be solved by him. ??But after thinking about it, I finally didnt say it. For one thing, he doesnt know much about this field. On the other hand, the conversion efficiency of achievements in the field of mechanical processing is also relatively low. So even with the help of the system, it is difficult to achieve breakthroughs in a short period of time like fluid dynamics simulation. In this case, it is better to let Zhong Shihong emo for a while first As long as I have no expectations, everything is a surprise. Besides the problem with the blade fastening method, do our factory have any other difficulties in the manufacturing process? Chang Haonan''s tone seemed to be just asking casually, but in fact he wanted to determine which aspect of knowledge he wanted to learn next. If you really want to say it, there are difficulties everywhere. Its difficult to pass every pass, and its difficult to walk step by step. Zhong Shihong smiled bitterly and shook his head: "But if I must say it, the current one is the manufacturing and testing of aircraft engine casings. Because it is a large overall thin-walled part, it is very difficult to cast. The current use of no-margin investment casting method has good yield and production efficiency. Very unsatisfactory. The other thing is the turbine blades. Because they are hot-end parts, the material requirements are much higher than those of the compressor. The turbine blades like the turbojet 14 also have air film holes that are required for active cooling, which is also very confusing to process. Headache." The third one is Listening to Zhong Shihong''s inventory one by one, Chang Haonan felt that his head was a little big... I''m going to my parents'' place for dinner tonight. I''ll add a chapter first, and the rest will be added in the next few days (the monthly ticket holder voted 83 times, so 8 chapters will be added) (End of this chapter) Chapter 104 New engine rolls off the assembly line Chapter 104 New engine rolls off the production line In fact, the reason why Chang Haonan was so anxious to come to the 410 Factory to check the engine production situation was that in addition to having an understanding of the domestic aviation power production level so that he could make some arrangements in advance, another very important reason was that he also remembered When I checked the test flight data of the No. 01 prototype before, I found that the working status of the two turbojet 14s on board was very unstable. If this phenomenon occurs only on the faulty unit, it can be considered as a sign before surge. However, the actual situation is that similar phenomena exist in both engines, even the two engines on the No. 03 prototype that Chang Haonan later went to check specifically. And the amplitude of instability is different. ?This situation means that the problem most likely lies in the manufacturing process. Although after increasing the surge margin of turbojet 14 by a full 25%, he can ensure that state fluctuations of this magnitude will not induce surge again. But its not enough. Surge margin is somewhat similar to the margin left in performance. The surge boundary line is the theoretical limit, and the common operating line is the artificial performance boundary set to ensure safety. The more stable the engine''s working condition, the shorter the distance between the two curves, which means that more actual performance can be "squeezed out" while the theoretical limit remains unchanged. After some previous improvements, the performance potential of the turbojet 14 is actually greater than before. So if the unstable factor can be found and solved, the actual performance of this engine can be further improved. ?But this matter is obviously not that easy. When Chang Haonan left the production workshop, it was already late at night. ??As a person who is not deeply immersed in the field of mechanical manufacturing, he really failed to find out which step caused the problem. We can only wait until the testing phase or even the later small batch trial production phase to slowly explore the problem. Fortunately, even if there are subsequent improvements in manufacturing, they will still be in the category of production finalization, so they will not affect the current work. ? One morning a few days later, a Y-8 transport plane painted in gray and white landed on the runway of Beiling Airport in Factory 112. The turbojet 14 prototype numbered 010001 had rolled off the production line from Factory 410 the night before and was shipped here overnight. It almost pinned the hopes of the entire 606 Institute and the entire August 3rd Project. In fact, when this engine was assembled and tested off the line, everyone had already discovered that it was different from the original design The weight of the entire machine under the national military standard has been reduced from the original 1150kg to 1040kg. The weight reduction of 110 kilograms may not seem like much, but for an aeroengine, every kilogram of weight is worthy of careful calculation. Not to mention it was reduced by 10% in one go. Even if other performance remains unchanged, the weight reduction alone is enough to bring the performance of the turbojet 14 to a new level. Whats even more exaggerated is that the main optimization direction of this improvement is not weight reduction. This 110 kilograms can only be regarded as a gift. Since the gifts are already so surprising, how could everyone not look forward to the performance of the engine itself? ?Yang Fenghao, Yan Zhongcheng and Chang Haonan stood together and watched as the engine, which had invested thousands of people''s efforts, was fixed on the pallet and then slowly entered the cabin of the Y8. In the northeastern morning in mid-September, there was already a hint of chill in the air. ??Yang Fenghao was wearing a leather jacket, put his hands into his sleeves, and asked Yan Zhongcheng next to him: "The last time I sent this old guy to Fucheng, it was nearly eight years ago, right?" ? ? ? "Yeah..." Yan Zhongcheng nodded, tightened the cotton clothes wrapped around him, raised his head slightly, and seemed to What are you remembering: "At that time, the high-altitude platform of Institute 624 was still under construction. The air intake distortion test, plateau and high and low temperature start-up tests could not be done. Functional tests could only simulate conditions below 20,000 meters, so many things could only be installed in adventure equipment. It can only be tested on prototype No. 01. "This time, we can make up for the content that we didn''t have time to do before, especially the plateau low-temperature starting capability, which should be the top priority for our model." Although Yang Fenghata is not an aviation power expert, as the entire Eighth Three The person in charge of the project is still very online in controlling the direction of the project. The air defense of the Tibetan Plateau remained an extremely daunting problem until the first decade of the 21st century. Although the innate altitude of Xigazi Airport allows our military aviation forces to theoretically gain an altitude advantage of three to four thousand meters as long as they take off, maintaining the normal operation of the aircraft at an altitude of 5,000 meters is itself a problem that has never been studied by anyone. subject. ?This situation did not improve until the infrastructure construction inland to Qinghai-Tibet was improved and the airstrip in Xikaz was expanded into a full-fledged air force base. As for the current 1990s The Triplesonic Squadron was also equipped with the MiG-25R reconnaissance aircraft that symbolized their name. Although these aircraft are no longer able to exert their full strength due to their age and insufficient maintenance, they can still come and go freely with their altitude and speed. Hearing this, Chang Haonan turned slightly and said: In fact, after this improvement, the starting efficiency of the turbojet 14 in plateau environment will also be improved. "You even changed the starter?" Yang Fenghao said with surprise in his tone. He did not remember such an item in the list of improvements he had seen before. No, but the compressor rotor is lighter than before, and the total pressure recovery coefficient has increased. Chang Haonan shook his head: This can compensate to a certain extent for the reduced air density and insufficient oxygen content. ?This explanation made Yang Fenghao''s eyes flash with surprise. Obviously, there is one more gift, and it is still so satisfying When a turbine engine is started from a standstill, it must rely on external power. Since there is no relative airflow flowing through the engine at this time, if oil is supplied to the main combustion chamber for ignition at this time, the engine will only be burned without causing the engine rotor to rotate. When the engine is in a plateau environment, the mass flow of air sucked into the engine or starter is smaller than during normal startup on a plain, and the power of the starter is significantly reduced, the rotor accelerates slower, and the cold running phase of the engine is extended, which can easily lead to startup Failure, even in the case of insufficient air flow, entering the idle state in advance and damaging the engine. ??However, the reduction in the quality of the compressor blades can reduce the adverse effects of low-efficiency starter power reduction and allow the rotor to reach the specified operating speed faster. It is equivalent to improving the plateau startup efficiency. After thinking for a moment, Yang Fenghao turned to Chang Haonan and Yan Zhongcheng with a happy face: Xiao Chang, Lao Yan, after you get to Fucheng, you must complete all the data for the plateau startup test. This is very important. After saying this, he seemed to feel that it was not enough, so he continued to add two more sentences: Its okay even if it delays some progress. I estimate that our J-8 export plan may be implemented at this air show. (End of this chapter) Chapter 105 High altitude platform simulation Chapter 105 High altitude platform simulation ?Due to the long distance between Shengjing and Fucheng, the prototype aircraft was transported by a basic Y-8 model with a longer range but without a modified airtight cargo compartment. So Yan Zhongcheng, Chang Haonan and others had no choice but to take another Boeing 737 and arrived in Fucheng a little later. ??Nanjiao Airport was still a military airport closed to civil aviation at this time, but as employees of the aviation industry system, their planes could naturally land here directly. ?Through the port window, Chang Haonan saw that the Y-8 that had taken off before was parked next to the runway. A group of people in camouflage uniforms were unloading the engine from the cargo compartment and preparing to load it onto a flatbed trailer next to it. ?The plane came to a slow stop at the end of the runway, and a ramp truck slowly drove over. Perhaps its because passenger planes dont land here very often, so it took the driver several attempts to get it right. After the cabin door opened, Chang Haonan did not get up in a hurry as usual. It wasnt until everyone else had left that he walked out of the plane at the end of the team. He took several deep breaths in succession, feeling the familiar smell in the air. Fucheng, is back again ?Standing at the top of the gangway, Chang Haonan gazed at the green mountains in the distance with some feeling. ?This is also the first time he came to Fucheng after his rebirth. ?Although it is not Base 29, it is still somewhat touching. ??However, this emo mood did not last long. A familiar voice quickly woke Chang Haonan out of his memories. Why do I feel like you, junior brother, are not very interested and are still worried about the manufacturing process? Its Yao Mengna. She had just been waiting at the door of the cabin. Chang Haonan shook his head: Thats not the case. With the improved surge margin of the turbojet 14, as long as nothing happens like swallowing water and hitting birds, the reliability will definitely be no problem. Of course he also told Yao Mengna about the fact that the engine test flight conditions were not stable enough. I didnt expect the other party to give any answers. I mainly chatted while waiting for the results in the calculation center. But surprises always appear unexpectedly. Do you think there is a relationship between the unstable operating conditions of the Turbojet 14 and the problem that the improved inner pylon may cause the engine to stop after launching the PL-8 missile? One word made Chang Haonan take back the steps he was about to take. The days of improving the compressor were really dark, and missile launch was really a small problem compared to the turbojet 14, so if Yao Mengna hadn''t mentioned it, he would have almost forgotten about it. Tell me what you think? I dont have a complete idea, but I just feel that there should be a connection between the two things, or the underlying root cause may be the same. ?Yao Mengna shrugged. Well ?Chang Haonan tried to continue thinking along this line of thinking, but he still couldn''t find any clue for a while. Anyway, lets go there first, dont let Mr. Yan and the others wait too long. Yao Mengna said, reaching out her hand as if she wanted to grab the wrist of the person next to her, but she still hesitated for a moment in the middle of the action. It turned out to be empty. Chang Haonan, who didn''t notice the little movement of the senior sister, quickly walked down the gangway and caught up with the crowd not far ahead. Yao Mengna had no choice but to curse in her mind for her indecisiveness at that moment as she trotted after the other party. ?The group of people got into two blue and white Coasters parked near the apron. At the same time, the engine installation has also been completed on the other side. The entire convoy began to drive towards Institute 624, the Gas Turbine Research Institute where Liu Zhenxiang worked before. ?Due to time constraints, Yan Zhongcheng took out his notebook on the road and began to assign tasks to the core members who were in the same car with him. Comrades, our high-altitude platform test has a total of 13 tasks. According to the order of execution, they are calibration test, air performance test, start-up and restart test, thrust transient test..." "The most important thing here is item 8. The intake distortion test, which simulates the situation that may induce surge, is a key link in determining whether our engine improvement is successful this time, so I decided to let Comrade Xiao Chang do it. Responsible for carrying out "Comrade Xiao Chang, the contents of the first six tests have little to do with our improvements this time. Although they still have to be done according to regulations, the process should be faster. During this period, you can first set the conditions for the intake distortion test. Designed "After completing the eighth item, we need to split into two. One team will continue to conduct the second half of the test, especially the plateau and high and low temperature starts. They must produce the most rigorous and detailed data, and the other team will go to Yan Liang, ready to conduct aerial platform test..." ?Under Yan Zhongcheng''s methodical command, when the group arrived at their destination, they already had a clear idea of ??their tasks for the next period of time. With the help of the staff of the 624 Institute, the first prototype of the improved turbojet 14 was fixed on the thrust bench of the SB101 high-altitude platform that night. ??Due to the experience and lessons learned by Yan Zhongcheng himself at the cost of half his life, no one is allowed in the test cabin during the aviation engine test. Therefore, Chang Haonan could not directly see the working scene of the turbojet 14 that he had improved. Fortunately, the data is read almost in real time. The first step of the test, which is the high-altitude platform calibration test, was quickly completed. ?The thrust bench was then sent into the test chamber. The tail nozzle of the turbojet 14 engine is aimed at the exhaust cooling device at the rear. ?The air supply and extraction systems of the high-altitude platform start working at the same time. The high-speed airflow provided by two DA3500 compressors is cooled and sent into the pressure stabilizing chamber. ?The engine started successfully, and the scream of the turbojet engine could be heard even in the operating room outside the test chamber. Aerial performance testing begins. The first thing to measure is naturally the standard bench thrust. Sea level altitude, incoming flow angle of attack 0, incoming flow speed Mach 0.4, ready to start testing. ?The engineer almost instinctively started to read out the test conditions according to the process. This should be a rather boring step for an engine whose main improvement is to increase surge margin. Because everyone is too familiar with the envelope of the turbojet 14. Almost everyone here can draw it with their eyes closed. The standard bench thrust should be 69.6KN. Although the design goal of the turbojet 14 is an engine with a thrust-to-weight ratio of 6.5, in actuality the thrust-to-weight ratio calculated according to the national military standards has always been around 6.2-6.3. ? Considering the current status of aviation power in our country, there is nothing unacceptable, as long as the stability is acceptable. ?The engineer who had just read out the test conditions was thinking this way when the thrust data read by the thrust bench appeared on the screen in front of him. Let me see As the engine speed continues to increase, the thrust curve finally stabilizes at The engineer in front of the computer screen couldn''t help but widen his eyes. The pen in his hand fell to the ground. ??The crisp sound also attracted the attention of other people nearby. Bench thrust force73.5KN! Additional updates will be made in the afternoon as usual (End of this chapter) Chapter 106 The most powerful vortex jet! (Additional update 28 for monthly ticket owner flankerr) Chapter 106 The strongest turbojet! (Additional update 28 for monthly ticket owner flankerr) 73.5KN, according to the expression custom in the field of aviation power, is roughly equivalent to 7500kgf (kilogram force). Combined with the 1040kg dead weight of the improved turbojet 14, it is not difficult to calculate that the thrust-to-weight ratio of this engine at sea level is as high as 7.2. ?This number even made Yan Zhongcheng, who had always maintained his composure, twitch the corner of his mouth slightly. ?But he still held back his laughter in the end. Ahem Are you sure you can stabilize this thrust data? Have you not broken through the common operating line? Due to the "performance margin" mentioned before, aero-engine performance can be improved through aggressive measures, at the expense of reduced lifespan and reduced reliability. Especially for engines that are still in the prototype testing stage, because there are no restrictions at the control system level, it is easy to operate beyond the limit. "This...thrust data is currently very stable, and the general characteristic curve data needs to be calculated." While speaking, the engineer who had been observing the data had already taken another laptop from the side and started analyzing the data on it. Chang Haonan was not particularly surprised by this number. When he conducted simulations after completing the design, he had already roughly calculated that the improved compressor could provide about 10% performance optimization, and the actual product''s performance exceeded this level. Not at all normal. But there were already a few people who couldn''t sit still and didn''t have any important work at hand. They wanted to get up and go over to watch. Dont be impatient and finish this round of air performance test first! Yan Zhongcheng didn''t react on the surface, but judging from his slightly trembling and hoarse voice, he was by no means so calm inside. Its certainly not that he doesnt want to celebrate. In fact, although in accordance with the standard requirements, about 10 different inlet total pressure state points should be selected for testing during the high-altitude simulation assessment test to correspond to the average operating state of the engine within the test range. ??However, the data to be tested this time is only the most common sea level thrust. If the data can be stabilized at a certain state point, there should be no problems. After all, the speed range to be simulated is only Mach 0.4-0.6. But in the past few decades, he has experienced too many failures. There have even been cases where the engine was in normal working condition and seemed to have very stable performance one second, but suddenly suffered a major accident the next second, causing the prototype to be completely destroyed. There have also been times when equipment malfunctions caused errors in the real-time readings on the computer, and when the experiment was over it was discovered that the joy was in vain. So he really didnt dare to relax mentally at all until the entire experiment was over and he saw the official results of the final output. ?Time passed by minute by second, and the entire operating room could almost only hear the whistling sound of high-speed airflow flowing through the impeller machinery, and the password of the test conductor. Start adjusting the total inlet pressure, step size 6.0kpa, 15 measurement status points The maximum thrust test is completed, adjust the throttle lever position to the maximum continuous position Quickly adjust the throttle lever to switch between the maximum continuous and minimum afterburner states. When the experiment finally reached this point, even Chang Haonan felt a little nervous. ? Thrust transient itself is a separate test subject, but in fact it will also be involved during other tests. Just like now. As for the rapid oil recovery under afterburning, the No. 01 prototype aircraft induced surge during this process. Fortunately, both the sound of the engine and the numbers displayed on the computer screen only fluctuated for a moment, and then returned to normal. "Turn off the afterburner and adjust the throttle lever to the middle..." The engineer in charge tried to keep his voice calm. Finally, the last data point in the last flight idle state has been recorded. Steady-state performance test, end As the last command was given, everyone''s attention returned to the equipment in the center of the operation room. Long pieces of graph paper were slowly spit out from the special printer. Before one end of the paper fell to the ground, it had already been taken away by impatient people. ?As long as the high-altitude platform is activated, it will be a gold-eating beast. For Chinese military workers who are eager to dig out money from their teeth, it is naturally impossible to have the luxury of testing only one maximum thrust at sea level in one test. Other data is equally important. ?Furthermore, everyone wants to know what kind of overall performance this engine with a maximum thrust of 7500kgf will give. ?At almost the same time, the engineer who had just used his laptop to process data in real time also completed his work and began to compare the compiled data report with the curve on the graph paper. Wow After about a few minutes, maybe more than ten minutes, the first voice finally broke out from the crowd. This is actually a...turbojet engine? This data is even more powerful than J79 Too conservative, this is completely out of the same performance dimension as J79 ??As more and more graph paper recording data is printed out, the atmosphere in the control room becomes more and more lively. Listening to the discussion and admiration of his engineers, Yan Zhongcheng finally breathed a sigh of relief. The clenched fists were slowly loosened, and there were even a few blood marks on the palms of the hands dug by nails. ?Finally, the engineer who first reported the maximum thrust data squeezed out of the crowd with the test report in his hand that had not yet been bound. Mr. Yan, Dr. Chang, this is a performance report. Data has been randomly tested against the original records, and no problems have been found. Yan Zhongcheng spread out a dozen pages of reports on the table in front of himself and Chang Haonan. Then he knew the source of those exclamations just now. Not only has a maximum thrust of 73.5KN. Fuel consumption rate under maximum afterburner is 0.207kg/(Nh) Middle thrust 48.3KN Fuel consumption rate under intermediate thrust state is 0.088kg/(Nh) Total boost ratio 18.6 Total air flow 66.4kg/s As an aviation power expert, Yan Zhongcheng naturally knows the significance of these numbers. ?No wonder someone just said this doesnt look like a turbojet engine. The typical second-generation turbojet engine J79 has a maximum afterburning thrust of 80KN, but it is a behemoth weighing 1800kg. The R11F300, a replica prototype of the Turbojet 7/13, has a curb weight similar to that of the Turbojet 14, 1100kg, but the maximum afterburner thrust is only 60.3KN. In fact, let alone these old-timers, even if the U.S. military served in the 1980s, the third-generation turbofan engine F404-400 equipped on the F/A18 fighter jet, with 71.2KN afterburning thrust/983kg curb weight, is only It was on par with the Turbojet 14 in front of me. If compared in all aspects, apart from the fact that the fuel consumption of the turbojet engine cannot be reduced due to the limitations of physical principles, so there is still a gap in fuel consumption and efficiency, the improved turbojet 14 can completely compete with the F404-400 A tie. From a technical perspective, it is definitely the most powerful turbojet! (End of this chapter) Chapter 107 One month, twelve years (I got up) Chapter 107 One month, twelve years (I got up) Looking at the data report in front of him and Chang Haonan who still seemed calm and relaxed next to him, Yan Zhongcheng turned around subconsciously and left the control room pretending to be nonchalant. He didnt want his tears to be seen by too many people. Twelve years. Twelve years have passed since the Kunlun engine project was officially established in 1984. For China Aviation Industry, which has never successfully developed an aerospace engine from scratch before, there are too many things to learn and lessons to make up. This project has had a troubled life from the beginning. Even Yan Zhongcheng himself cant remember exactly how many problems he has faced in the past twelve years. At first, the combination of the three-stage low-pressure compressor of the turbojet 13 engine and the first seven-stage high-pressure compressor of the downsized "Spey" engine did not match. The engine would enter surge almost immediately as soon as it was started. They had to redesign the fourth stage of the compressor, and finally the engine could start working normally. Later, because the temperature in front of the turbine of Turbojet 14 was higher than that of Turbojet 13, which far exceeded the endurance of the turbine blades themselves, they had to use active film cooling technology for the first time on the high-pressure turbine. ??Due to no engineering application experience, Factory 410 was unable to produce qualified products with air film holes for several years. Root fractures of high-pressure turbine blades were almost the main part of Yan Zhongcheng''s nightmare during that period. Following this were oil leakage from pipelines, lubricant oil interruption, and low afterburner ignition success rate... If the story of these twelve years were written into a book, the most appropriate title would be "Learning Engine Design and Manufacturing from Scratch". It can be said that the entire research and development process of the Turbojet 14 is a cycle from one setback to another. ?At first, Yan Zhongcheng would feel excited because he led his team to overcome a certain technical problem. But soon, he no longer had similar emotions. Because the solution of one problem often means more problems. It was like groping forward in the moonless and dark night, not even knowing if I was on the right path. Thinking of this, Yan Zhongcheng sighed, leaned against the wall of the corridor at the door, put his right hand into the collar of his shirt, and touched a scar on his left shoulder. That was left over from a failed test run. ?The fan blades flying in the explosion almost cut off half of his left arm, so that to this day, he cannot lift his left hand for a long time. Many people left midway. To be honest, Yan Zhongcheng understands. ?What these people fear is not suffering, suffering, or even bloodshed, but losing hope and direction. ?This is why he had to let Chang Haonan think clearly before deciding whether to join the joint power research team. Because it takes extraordinary courage to plunge headlong into the dark night. ?But it was obvious that he underestimated this young man after all. ?The other party is not afraid of the long night at all, because he himself is the torch that lights the way forward. Now, there is light. The road is clear. In the control room, Chang Haonan certainly knew why Yan Zhongcheng chose to leave alone when everyone was celebrating. As a reborn person, he knows the latter''s experience in the development process of the Turbojet 14. It only took more than a month from the accident of the No. 01 prototype to coming up with a new design with performance comparable to the F404 engine. There is of course systematic help and the reason why a reborn person is prophetic. However, without Yan Zhongchengs twelve years of persistence, Chang Haonans one-month miracle would not have happened. Compared to the sentimental Yan Zhongcheng and the calm Chang Haonan, the emotions of most people in the control room were much simpler. Excited and happy. There was great joy. For the vast majority of engineers in Institute 606, this is even the first time in their careers that they have experienced the feeling of success. Prior to this, the best aeroengine China could produce was the turbojet 13. The technical level is roughly the same as the J79 in the early 1960s, but the overall performance is even weaker. The turbojet 14 in front of them has already pushed the J79 several positions away. It can even be compared to the F404 in the mid-1980s to a certain extent. Fifteen years leap! Of course, this calculation method is definitely not accurate enough. F404 is just a less dazzling product in the overall development process of the US aviation industry, and it is far from the limit of that era. The Turbojet 14 is the only seedling growing in the still barren soil of China''s aviation industry. ??It is probably too optimistic to say that the gap between China and the United States in the field of aviation power has been narrowed to less than ten years. But, so what? The huge technological breakthrough is real. For the first time, China has its own aviation power. And you must know that a project like the Kunlun engine does not only represent one model. If all test projects can be successfully completed, then a series of new products can be developed based on the mature core machine of the Turbojet 14. The development of the entire China aviation power industry will benefit from this. Project research and development also pays attention to positive feedback. In the past few decades, aviation engine models have been used as supporting equipment for aircraft models. Coupled with insufficient investment, the aerospace power field with already weak foundation has become even worse. In many cases, even if a complete set of technical data from the Soviet Union is obtained, they can be copied. There is a certain gap between the performance of the finished product and the original version. Looking back at the aircraft industry, the first J-5 was assembled in 1956, and two years later in 1958, the J-1, which was completely designed independently, successfully made its first flight. ??Although the JJ-1 only built 3 prototypes and did not achieve mass production, that was mainly due to changes in the flight training system and... The 410 factory is unable to provide qualified Ejection 1A engines. Although there are limitations from various objective factors, such a sharp comparison between the two makes it even more obvious that the aviation power department is a bit "not up to par". ?In the following nearly 40 years, this kind of engine "holding back" has almost always been accompanied by the development of the entire Chinese aviation industry. So much so that those who engage in aviation development feel a bit unable to hold their heads high. But this time, the situation is different. The original design of Project 83 is at the level of a normal second-generation aircraft. Even after some improvements by Chang Haonan, it can be regarded as a "quasi-third generation" at most. ?The turbojet 14 provided by our aviation power department is also a "quasi-third-generation" engine with performance that is close to that of the F404. Not only is it not lagging behind, it is even ahead of the aircraft models to some extent. Finally feel proud for once! ?But at this time, someone among the people celebrating each other suddenly realized something. The person who presided over the modification of the compressor design this time is also named Chang Haonan. The person who presided over the modification of the aircraft design before was also named Chang Haonan. How do you feel..." ?The man scratched his head and looked at Chang Haonan, who was looking down at the test report outside the crowd. As an ordinary engineer at Institute 606, he certainly had not participated in the wing design modification work conducted by Institute 601. He had only heard about it in exchanges with colleagues. This cant be the same person (End of this chapter) Chapter 108 Turbine front temperature Chapter 108 Temperature before turbine ?At the same time, Yao Mengna was sitting on a chair in the corner of the control room, almost out of everyone''s attention. From the surface, she seemed to be staring at Chang Haonan''s side face in a daze. ?Well, thats actually true. ?But the reason for being in a daze is not that he is attracted by the latter''s appearance and becomes a nymphomaniac. Rather, after witnessing the high-altitude platform test process just now, an inspiration flashed through her mind. But he didnt have time to catch it. I just vaguely felt that the inspiration just now was related to my junior brother. Yao Mengna believes that visual stimulation can stimulate the subconscious mind and remind herself of useful things. ?Well, its all for scientific research. In short, when she really caught the inspiration again a few minutes later, she even felt a little disappointed. Damn it, I cant find any other excuse to lie to myself... Forget it, business is more important. ??Yao Mengna shook her head slightly and put aside the messy thoughts in her mind for the time being. Then she stood up and walked quietly along the edge of the room to the computer that recorded the test data. In fact, on the way off the plane, she was thinking about the unstable operating conditions of the turbojet 14 that Chang Haonan mentioned before. Now she has an immature but logically self-consistent guess. It just needs some data to confirm. Soon, she found the inconspicuous project from the vast sea of ??records Combustion chamber outlet temperature/turbine front temperature. "very good." ?Yao Mengna, with her eyes fixed on the screen, raised the corners of her mouth slightly and murmured softly. However, the excitement only lasted for a moment. ?After clicking in to check, she found that the data inside was incomplete. ?This indicator is very important in the design and manufacturing process of combustion chambers and turbine blades, but is generally not a focus in high-altitude bench testing. The main reason is that it is really difficult to measure. The accuracy of non-contact measurement is not high, and the technology is not mature enough. The engine even needs to be specially modified for testing. Contact temperature measurement requires the insertion of armored thermocouples. One or two is not a problem, but if you want to obtain a complete temperature field, there will be many points that need to be measured. A large number of thermocouples themselves will affect the internal flow field of the engine. Produce interference and affect working status. So as long as the engine''s core indicators such as intake air flow and thrust are normal, and there are no problems with the turbine''s operating conditions, the temperature in front of the vortex will not be measured frequently. At most, we can only give the data of 1-2 sampling points as shown in front of us to ensure that no over-temperature accidents will occur. But she needs more comprehensive data. After a few seconds of hesitation, Yao Mengna finally decided to talk to Chang Haonan about the matter first. ?With the lessons learned from the last blade slit design, she will not allow the project progress to be delayed again due to her own reasons. Junior brother. Yao Mengna bypassed the crowd that had just finished celebrating and came to Chang Haonan: I would like to conduct an overall measurement of the temperature field in front of the turbine during the subsequent air performance test. Temperature in front of turbine? Chang Haonan raised his head and glanced at Yao Mengna in front of him, then quickly flipped through the report in his hand, and quickly found the page with the corresponding data. The maximum temperature in front of the turbine is 1575K, which does not seem to exceed the design tolerance, and from the overall working condition of the engine, it is also..." Halfway through speaking, Chang Haonan suddenly paused. Do you think there will be a problem with the temperature distribution in front of the turbine? Thats right. Yao Mengna nodded firmly: The data obtained now are only the results of sampling at two points at the center and edge of the turbine. If it is a generally radially symmetric temperature field, there is certainly no problem with this measurement method, but the turbine blades themselves have an active cooling function. "If the air film formed on the surface of the turbine blade is not uniform enough, the cooling effect will fluctuate. At around 1600K, even a temperature change of only 20-30 degrees will significantly change the physical properties of the blade and affect the overall operating conditions of the engine. stability. ?Chang Haonan turned to the back of the test report in his hand while listening to Yao Mengna''s thoughts. ?Sure enough, unstable operating conditions similar to those on the No. 01 and No. 03 prototypes were discovered from the data. Fortunately, this time he has reserved enough surge margin, so even during the thrust transient, no fault occurred. However, the sensor still faithfully recorded the dramatic fluctuations in the compressor mass flow rate and boost ratio at the moment when the throttle lever state changed. I think it is indeed possible... Looking at the report in his hand, Chang Haonan realized that he had fallen into a misunderstanding. Because the position where the operating condition fluctuations were initially recorded was the compressor. Later, the part he presided over the modification was also the compressor. So he always felt that the problem lay in this part. But something like an aircraft engine affects the whole body. The principle of film cooling is to introduce a secondary air flow from the hole on the wall in a high-temperature environment to the mainstream, allowing this cold air flow to bend downstream under the pressure and friction of the mainstream, and adhere to a certain area of ??the wall, forming a lower temperature The cold air film isolates the wall from the high-temperature gas and takes away part of the radiant heat from the high-temperature gas to the wall of the part, thereby cooling and protecting the wall. ?This process requires the extraction of low-temperature air from the compressor as a cooling fluid, so it will directly affect the air flow inside the compressor. Chang Haonan certainly knew the principle, but after all, it was not his previous profession, so he did not think of it for a while. Thank you for reminding me, senior sister. ?Chang Haonan quickly packed up the reports on the table and prepared to go outside to find Yan Zhongcheng. In the entire bench test, he was only responsible for the intake distortion test related to compressor improvement. The person in charge of other test subjects was still Yan Zhongcheng himself, so if the test items were to be temporarily added, the latter''s signature would be required. Its okay, as long as I can help. Yao Mengna wanted to hug the other person, but after thinking about it, it seemed that it was not the right time, so she had to put down her half-raised arm. It would have been nice if I had come here when the test results first came out Fortunately at this time, Yan Zhongcheng, who had just left the control room, pushed the door back in without letting Chang Haonan notice her embarrassed expression. Mr. Yan, regarding the air performance test that will be conducted later, senior sister has come up with an idea... Given the ability that Chang Haonan has shown so far, this suggestion was naturally passed very smoothly. In 1996, there was no very reliable non-contact online measurement method, so the staff of the 624th Institute installed a batch of armored thermocouples on the high-pressure turbine guide overnight. After the three-hour experiment, the raw data was quickly given to Chang Haonan. The subsequent analysis results proved that Yao Mengnas previous guess was completely correct. At maximum afterburner thrust, the temperature field at the engine turbine inlet is distributed parabolically along the blade height, that is, the temperature at the blade tip and root is low and the temperature at the middle position is high, which is consistent with the design law. But as the engine speed gradually decreases, the unevenness of the temperature field in front of the turbine begins to increase. The unevenness reaches its highest level when the throttle lever is near the "minimum afterburner" position. ?This is exactly the same situation recorded by the two prototypes during the test process - the most severe fluctuations in operating conditions occur during transonic acceleration or deceleration. Thats right! (End of this chapter) Chapter 109 choice Chapter 109 Choice In the control room, the few people who saw the results for the first time looked at each other. Air film hole cooling is a well-established black technology in this era. Foreign countries have blocked this technology so strictly that in the past ten years, only one paper in the related field has been published in the world - that is The article that originally proposed the concept of film cooling. ?According to basic physical principles, the size, distribution, and most importantly, the shape of the pores of the air film will affect the heat dissipation effect. However, China in the late 1980s undoubtedly did not have the ability to conduct in-depth research. Similar to the flutter active control method proposed by Chang Haonan that was hidden by the 603, the specific design method of the turbine blade air film hole is also unknown to companies such as Rolls-Royce, General Motors, Pratt & Whitney or Leurica-Saturn. secret. ?There is no way to learn from it. Therefore, Yan Zhongcheng and others chose a very conservative round hole design when designing turbine blades. The cooling effect can only be said to be unsatisfactory. Fortunately, the temperature in front of the turbine of the Turbojet 14 is not extremely high. The point is that the design process is relatively simple and there will be no mistakes. Furthermore, if it is a design flaw brought from the mother''s womb, its performance will be relatively stable, but to a very poor extent. But this is not the case. So the problem lies in the manufacturing of turbine blades. Or to be more precise, it should be during the process of air film hole processing. The separation system of factories and offices commonly used in aviation systems does ensure that resources are concentrated in their respective key directions under the background of relatively difficult conditions. However, the loosely coupled collaboration method between the design office and the main engine factory determines that there is essentially no communication between the two parties. of mutual affiliation. Although Factory 410 needs to cooperate with the work of Institute 606, it does not obey the management of the latter. ?The people who came to Fucheng with Yan Zhongcheng this time were all engineers from the 606 Institute. They generally had little knowledge of the manufacturing process, and faced this problem for a while. The chief engineer responsibility system was established a few years ago to a large extent to solve this problem, and it has shown good results from the subsequent situation. However, the August 3rd Project and the Kunlun Engine, which were already established in the mid-1980s, did not have such a team. . ?After all, it is rare for someone like Yang Fenghata to be able to lead the overall situation as the chief designer. Not only does one need to have sufficient prestige, but more importantly, the superior must be willing to provide support later. Xiao Chang, I remember that you should have visited the 410 factory before coming to Fucheng this time. Did you find any problems? I mainly mean...the management level? After a while, Yan Zhongcheng asked. ?Of course he himself often goes to the 410 factory, but as a model chief engineer and a "brother unit leader" his goal is too big, and even if he goes there, he may not be able to see anything. Chang Haonan shook his head: "For the two newly assembled engines, only the casing and compressor parts are newly made. The combustion chamber and turbine at the back are all previously produced parts. At least from the perspective of the production and assembly process of the compressor blades, it can be calculated Its very organized. He suddenly remembered the pile of blades piled in the scrap area of ??the workshop. That afternoon in the restaurant of the production workshop, Zhong Shihong once explained in detail the manufacturing and testing standards of compressor blades. ?Although I cant remember the specific data, the other party said that these standards were determined after nearly 30 years of exploration. So he opened his mouth and added: Air film hole manufacturing is completely new to our aviation manufacturing field in China. I think it is possible that they have overlooked some key points. ?The atmosphere fell into silence again. Theoretically, this is not a serious enough flaw to be fatal. ?However, everyone here just experienced such an excitement yesterday, a joy that finally made them stand up and sing. A second-generation engine has a performance close to that of a third-generation turbofan. The Turbojet 14 in front of us is the treasure in everyones heart at the moment 606. Even if there is only one in 10,000 chance that something will go wrong, everyone wants to eliminate possible hidden dangers. Once bitten by a snake, you will be afraid of well ropes for ten years. ?The Turbojet 14 has experienced too many ups and downs. ??It would be fine if they were always in darkness, but now they have seen the light of hope. No one wants to lose it again. Perhaps, the 410 Factory can send the No. 02 prototype that has been finalized for testing. Maybe it is an isolated case? Finally someone suggested. You can also try replacing a new high-pressure turbine? Listening to the increasingly noisy discussions around him, Chang Haonan suddenly realized a problem. It seems that everyones focus has gone astray. The person who initially wanted to find out the cause of the engines unstable working condition was indeed himself. But now these people around us seem to be more persistent in eliminating hidden dangers. ?Hmm...perhaps even paranoia, or fanaticism. A bit similar to Yao Mengna from the previous period. ??Its just that this time its really possible that the progress will be delayed. In fact, what Chang Haonan was most worried about before was that the engine had some unknown structural defects. If thats the case, simply improving the surge margin to treat the symptoms will definitely not work. So after truly identifying the problem, he himself breathed a sigh of relief. First of all, it has been proved that this problem is not fatal, and secondly, subsequent production improvements will not affect the design finalization task. ?If conditions permit, he is of course willing to continue digging deeper to satisfy his inner perfectionism as a scientific researcher. ?However, engineering things are never perfect and must be considered comprehensively based on the actual situation. Even the rockets used for manned spaceflight can only achieve 99.8% overall reliability instead of 100%. ?Risks are not scary, only when risks are out of control. Furthermore, for a power such as the Turbojet 14 that can be used on the two main fighters, the J-7 and J-8, schedule delay itself is a risk. The choice between soundness and efficiency is like walking a tightrope. ??The layer of paper between being bold and promising and being blind and reckless was finally placed in front of Chang Haonan. ?Perhaps even he himself has not realized it, but he has unconsciously begun to think about issues from the perspective of overall project management. It seems more appropriate for Yan Zhongcheng to come forward and speak out about this matter? Looking at the people who were having a heated discussion, Chang Haonan hesitated again. If it had been left to the past, he would probably have made such a decision eventually. But this time, something different seemed to be urging him in his mind. Comrades, the high-altitude platform test cannot be interrupted and should continue as planned. ?Chang Haonan stood up almost without any control of his mind and said these words. So that he first heard a familiar voice, and then realized that it was himself who had spoken. Everybody in the control room looked at Chang Haonan, the only one standing. Including Yao Mengna. (End of this chapter) Chapter 110 I just added the national military standard Chapter 110 I added the national military standard In her impression, this junior fellow student was always very confident in the technical field, but always lacked some momentum when communicating with others. Fortunately, the other party''s ability is really ridiculously strong, and everyone who can always directly use the research results to defeat him is convinced. ?In this case, the original lack of aura becomes advantages such as "elegant, easy-going" and "approachable" in the eyes of others. Today is the first time that Yao Mengna has seen the other party be so decisive, even with a slightly domineering side. After saying the first sentence, Chang Haonan''s brain went blank for a moment. Fortunately, his performance just now made everyone think that he was having emotions. Now that the matter has come to this, we can only continue talking. Chang Haonan calmed down when he thought of this. ?He took a deep breath and spent about half a second organizing the next words: As engineers, everyone should be aware of the risk control theory. Judging from the current situation, this unknown manufacturing defect has not broken down the redundancy left in our design process. At least in the current test, the working condition of the engine has not been abnormal because of this. So there is absolutely no need to disrupt the progress of the design finalization. After all, this also involves whether Project 83 can be displayed in a complete form at the air show. "Prototype No. 02 has been sent to Yanliang. We are just waiting for the high-altitude platform test here to be completed before we prepare to go to the 086 platform for air testing. The 601 Institute is also adjusting the fuel tank layout of the aircraft to adapt to the lighter 220 Kilograms of two engines. These works affect the whole body. If we stop, it will also have an impact on the work of these brother units. Of course, the problem cannot be left alone, but it can be solved one after another during the production and finalization process. I can understand that everyone is not willing to take risks after seeing the performance of this engine, but comrades, the sky of the motherland does not leave us enough time to pursue the limit. As the main proposer of the turbojet 14 compressor improvement plan, these words come from Chang Haonan''s mouth, and the persuasiveness is naturally completely different. The entire control room became quiet again. Some people soon stood up to express their agreement. After all, everyone understands the truth, but most people are still in the excitement of yesterday, so their ideas are confused. ?Of course, the final decision still has to be made by Yan Zhongcheng: Since it is confirmed that there is a problem in the manufacturing process, I will first contact Comrade Zhong Shihong and ask him to conduct a self-examination of the turbine blade production process to at least ensure that the current manufacturing process can be completed with quality and quantity. "As for us, Comrade Xiao Chang is right. Judging from the current situation, the testing work should continue. Moreover, the comrades from the 624th Institute said that there is an improved turbojet 13 on the Zhucheng side to follow us. Doing testing, so continue to maintain the original plan. If there are no problems, then go back and prepare for tomorrows startup and restart tests. At the insistence of Chang Haonan and Yan Zhongcheng, the ground test of Turbojet 14 continued as usual. In the following half month, a series of sub-projects such as start-up and restart, plateau and high and low temperature, thrust transient, afterburner on and off, and engine control system were successfully completed with the cooperation of 624 institutes working overtime. There were no further surprises worth mentioning. And Chang Haonan was not idle during this period. He is conducting the intake distortion test design that he is responsible for. In fact, this can almost be said to be the most complex and difficult link in the entire high-altitude platform test. Other test subjects only test the performance of the engine. The primary problem faced by the intake distortion experiment is actually that there is no standardized standard. ??Although Yan Zhongcheng actually only asked Chang Haonan to test the surge condition of the engine when he first arrived in Fucheng to assign tasks, the strict intake distortion test is definitely not equivalent to the forced surge test. After all, in addition to extreme situations such as surge and rotational stall, the more common situation of intake distortion will directly affect the performance of the engine. This is especially true for fighter jets that often perform over-stall maneuvers with large angles of attack and large sideslip angles, and even launch missiles/rocket weapons during these maneuvers. ??The missile launch exhaust smoke that has been bothering the J-8-3 before can also be regarded as a type of air intake distortion. ?So if you want to evaluate the stability of the engine, you must at least first define what stability is, what indicators can determine stability, and how to measure these data... The entire Chinese aviation industry currently knows almost nothing about this. The Turbojet 14 is actually the first Chinese engine to reach this stage. In 1994, based on the introduction of the American ARP1420 and AIR1419 standards, my country issued GJB/Z64-94, which is the "Guidelines for the Assessment of Import Total Pressure Distortion of Aviation Turbojet and Turbofan Engines." ?However, this guideline lacks the necessary support of experience and test data, as well as calculation procedures and engineering methods. It can be said that it has no operational value. In the original timeline, this problem was not solved until the late 1990s, when Russian compatibility theory and analysis methods were systematically introduced. It is already the new century to truly set the standards. ?The Turbojet 14 certainly cannot wait until that time. So Chang Haonan decided to do it himself. ?Of course, this does not mean that he alone has to complete the contents of the entire national military standard. But at least give it a good start. In short, when Chang Haonan placed a nearly 100-page "Aeroengine Inlet Distortion Test and Evaluation Method" in front of Yan Zhongcheng, the latter''s eyes almost bulged out in shock. You wait, you wait. Yan Zhongcheng put down the half-filled water glass, rubbed his pounding heart, and stopped the young man in front of him who was about to start a long speech. He felt that he needed to slow down. Too many surprises can sometimes turn into shock. ?After about half a minute, Yan Zhongcheng finally felt that he had calmed down. "You...have designed a complete set of experiments in accordance with national military standards?" Thats not the case. Chang Haonan shook his head decisively. The strict intake distortion experiment involves matching the engine and the intake duct. Firstly, there is not so much time for the current Eighth-three Project, and secondly, the objective conditions of the 624 Institute It also does not yet allow for complex distortion simulations. ?For example, the exhaust smoke when the missile is launched will not work. "Oh, it''s fine if you don''t have it... No, it doesn''t matter if you don''t have it. We can do it step by step..." Yan Zhongcheng picked up the water glass again and took a sip of water. I just supplemented the engineering and calculation methods regarding temperature distortion and pressure distortion in the national military standards. Coughcough cough (End of this chapter) Chapter 111 Intake distortion test Chapter 111 Intake Distortion Test This time, what Chang Haonan did quietly was definitely a big job, and its impact was naturally not as simple as making Yan Zhongcheng choke. It is one thing to design an individual trial, but another thing to come up with a set of universal and unified regulations that apply to the entire industry. Make up? ? Yan Zhongcheng, who finally regained his breath, gave up his plan to drink water and opened the "Aeroengine Intake Distortion Test and Evaluation Method" in front of him. He had to see how much Chang Haonan had added. Classification of destabilizing factors Evaluation specifications for aerodynamic stability Numerical calculation methods during aerodynamic stability analysis The influence of experimental factors on distortion characteristics Comprehensive assessment of aerodynamic stability in the engineering design stage ifies Of course, it is impossible to read all the more than one hundred pages of documents in a short time, but just a glance at the table of contents has already made Yan Zhongcheng pinch his teeth in shock. ? Regardless of what the content looks like, the logic of the writing is absolutely clear. Since the ARP1420 and AIR1419 standards that were introduced (copied) were fundamentally not suitable for Chinas aviation industry system that was born out of the Soviet Union and France, a lot of the content in it was very blunt and confusing, like a book Mathematics textbooks that are poorly translated and lack content are equally frustrating. The assessment method written by Chang Haonan not only contains a lot of practical guidance, but also corrects or redefines many inappropriate parts of the original standards. Xiao Chang. Yan Zhongcheng finally took a sip of water safely, and then slowly said: I cant do anything about what you wrote, nor am I qualified to comment on it, so I have to report it. He is very clear that many of the specific contents in this method involve a lot of professional knowledge outside the field of overall aero-engine design, and it is not enough for one person to do it alone. And more importantly, it is the national military standard. Even if it is not complete yet, it is a serious national standard. Once the content is written in, it will guide all engineering practices in related fields. In other words, in the future, any new models of aero engines or gas turbines that need to be tested for air intake distortion must be conducted within this framework, and may even involve a series of work such as subsequent type certification. At any time, the formulation of national standards related to any industry is followed by countless exchanges of interests and bloodshed. Although China''s aviation industry is completely under the unified leadership of the state and there will be no exaggerated plot of physical business war, this weight is definitely not something that Yan Zhongcheng, the model chief engineer, can handle. So whether from the technical level or the management level, it requires an entire expert group and the endorsement of the Commission of Science, Technology and Industry for National Defense. I know this. Chang Haonan, who was sitting opposite Yan Zhongcheng, took out a bulging file bag from his bag. After opening it, there was a stack of documents that had not been bound: I have already prepared relevant documentation and data from the engineering design process, but if we want this method to be truly convincing, we still have to do it on our turbojet 14. Of course, the intake distortion test of the turbojet 14 engine will still proceed as planned. Yan Zhongcheng picked up the pen in his hand and tapped the table as usual: But according to the general process, there will be a standard review soon after I submit the report. In order to ensure that the progress of both parties is not delayed, the on-site conductor of the test still has to be replaced by another person. He can still distinguish the priorities of things. ? Based on the performance of the turbojet 14 in the past period, it can basically ensure that the test process goes smoothly, and there are not many things that need to be handled on site. Therefore, it is even more important for Chang Haonan to prepare for the standard review personally.?????"If it were another person..." Chang Haonan also knew that he had no skills at all times, and the efficiency of taking care of both sides would be even lower. Therefore, he glanced at Yao Mengna, who was sitting next to him and had been silent. After thinking for a while, he gave his answer: Let my senior sister come. She has also participated in the design of relevant experiments and the determination of standards during this period. She is the most suitable candidate besides myself and you. Putting Yan Zhongcheng next to himself is definitely not a compliment. In fact, in the original timeline, before GJB/Z64-94 truly formed its guidance capabilities, the only person in China who had relatively systematically designed the asthma test was Yan Zhongcheng. Its just that the water-spraying method he used was not as stable as the plug-in method later introduced from Russia, so it failed to become a standard in the end. Xiao Yao ?When he heard Yao Mengna''s name, Yan Zhongcheng''s first reaction was that she was a bit too young. ?But immediately he realized that Chang Haonan in front of him was actually younger. The next life is to be feared Yan Zhongcheng sighed secretly in his heart and nodded at the same time, agreeing with the candidate proposed by Chang Haonan: Thats okay, let her do it, it can be considered as some exercise. The two of them made arrangements for Yao Mengna clearly and clearly. "ah?" The latter was originally just appreciating the temperament that Chang Haonan inadvertently revealed when communicating with Yan Zhongcheng, but he never expected that it would suddenly affect him. Wait, why is it me... ?Yao Mengnas first feeling after learning about this decision was panic How come I, a third-year Ph.D. student who helps my junior fellow student, was suddenly assigned to be the on-site commander? After all, such an arrangement not only means recognition for her, but also means shouldering huge pressure and responsibility. It is completely different from simply doing technical research. Xiao Yao, dont refuse this matter. Yan Zhongcheng turned around and looked at Yao Mengna, who was still confused: You are all the future pillars of China Aviation. You must be good at and dare to take responsibility. This experiment is not difficult and risky. Just think of it as training for you. The corner of Yao Mengna''s mouth twitched slightly, thinking that there was no point in giving a doctoral student practice skills under a key project of the Science and Technology Commission, but Yan Zhongcheng had already reached this point, and she could no longer refuse, so she had no choice but to nod and agree. Guaranteed to complete the task! Even though it was not her intention, with her serious character, now that she has accepted this task, she will definitely try her best to complete it to the best of her ability. ?So Yao Mengna looked at Yan Zhongcheng opposite, and then at Chang Haonan beside her. The latter''s eyes seemed to be full of encouragement. This made her emotionally stable a lot. Then...Ill go back and prepare now. Dont be too stressed. You can go to the control room to simulate the test process tonight. If you have any questions, you can ask me or Xiao Chang. Yan Zhongcheng, who noticed the nervousness in the female doctor in front of him, continued to half-joke in a relaxed tone: Otherwise, after the review expert team arrives in two days, we may not have so much time. (End of this chapter) Chapter 112 Our own standards! Chapter 112 Our own standards! Yan Zhongchengs report quickly attracted the attention of the Commission of Science, Technology and Industry for National Defense. That evening, General Ding Gaoheng, director of the Science and Technology Commission, convened experts in the aviation field in Beijing and held a small but high-level internal symposium. Of course, among the invitees were Du Yishan and Liu Zhenxiang who were flying on Beijing Airlines. As academicians, the two of them were naturally provided with special cars, but Liu Zhenxiangs organizational relationship was still with Institute 624, so he had to squeeze into the back seat of the same car as Du Yishan. You are quite well prepared. Du Yishan glanced at Liu Zhenxiang, who was carrying a bulging briefcase. The latter put the bag casually between the two of them and said with a smile: Your precious student, there is quite a stir this time. The people from Fucheng called me last night and told me that they were preparing to apply for a standard review, but I didnt expect that it would directly alert the Science and Technology Commission. Hehe, this brat caused such a big thing, but everyone knew about it before me. In the end, it was me, the mentor, who was kept in the dark. Du Yishan had a cold face, but the joy in his tone could not be hidden at all. Its like a child who has just got a new toy. Although he talks about it, he still cant help but take it out and wave it in front of his friends. And he also deliberately pretended to be casual. ?There is no doubt that Liu Zhenxiang is the friend who was dazzled: Okay, okay, I know you have a great student. Once the matters over at Institute 624 are settled, I will also transfer the organizational relationship back to Jinghang as a professor Actually, when Chang Haonan officially studies for a Ph.D. next year, you can also be his associate tutor. Du Yishan looked sly. Go, go, go, is that the same thing... Liu Zhenxiang suddenly regretted that he had just rejected the proposal from the Science and Technology Commission to send a car to pick him up, and chose to ride in the same car with him. But then again, since Chang Haonan has also shown extraordinary abilities in the field of aviation power, it seems that it is not impossible to have a name? Associate tutors are of course nameless and unpleasant to hear, but if you can be a joint training tutor... ?That can be considered at least half a student. Looking at the street scene speeding past outside the window, Liu Zhenxiang couldn''t help but start thinking about this possibility. The seminar was held in an inconspicuous conference room of the Committee of Science and Industry. The number of participants was not large, and they were only seated in two rows. There was only a bottle of water in front of everyone, and there were no meeting documents. It was not until about ten minutes after the scheduled start time of the meeting that two staff members finally walked in in a hurry and handed a black briefcase to Ding Gaoheng, who was sitting at the head of the conference table. Comrades, we only received the report at noon, so todays symposium is indeed held in a hurry. Ding Gaoheng said as he took out two documents from his briefcase and handed them to the first person on his left and right hands respectively: "These two copies were just brought over from Fucheng by the confidential personnel, "Guidelines for Evaluating the Inlet Total Pressure Distortion of Aviation Turbojet and Turbofan Engines." Since I was in a hurry and did not have time to print more copies, I would like to trouble you to circulate them to all the experts. , Comrade Liu Zhenxiang will also brief us on the relevant situation." ?Given the current status of everyone in the conference room, they rarely encounter things that need to be circulated, but it also illustrates the importance of this matter from the side. Total pressure distortion evaluation I remember it was GJB/Z64-94? Yes, but that standard really has no operational value ????When they heard Ding Gaoheng name the two documents, a group of experts below also began to discuss in whispers. Since it was a short-notice meeting, most people only knew that they were coming to attend a symposium related to the aviation industry, but they did not know what the specific content was. About twenty minutes later, the file was finally transferred to the end. The conference room became quiet. Like Yan Zhongcheng before, although there is not enough time for everyone to read the contents, for these industry insiders, they can roughly judge the value of this thing with just two glances. Ahem Liu Zhenxiang coughed twice: This guide was compiled by the 606 Institute during the high-altitude bench test of the improved turbojet 14 engine, and they are now conducting the intake distortion test according to the steps. We know that the year before last, we issued our own national standards based on the introduction of American standards, but in terms of specific engineering applications, the 1994 standards still have some shortcomings. For example, we dont know what impact different forms of distortion spoilers can have on compressor stability, how much steady-state and dynamic distortion intensity the same distortion spoiler can produce, and whether the integration time scale affects the stability margin. influential" This guide issued by the 603 Institute based on the turbojet 14 engine testing experience addresses the issues of ambiguity in the 1994 standard and incompatibility with my countrys aviation industry system at both the operational and theoretical levels. Supplement and correction. Hearing this, even Ding Gaoheng, who was sitting in the first place, showed a helpless smile. The formulation of national military standards requires approval from the Commission of Science, Technology and Industry for National Defense. In the early 1990s, faced with an almost blank standard system in China, the biggest problem faced by the Science and Technology Committee was not even that it didnt know how to establish standards, but that it simply didnt know what standards needed to be established. So the principle at that time was to ignore the specific content, rely on borrowingism to occupy the pit, and establish a standard system. To make an analogy, it is probably like building a library from scratch. Because I have no experience, I have to follow the example of other libraries and first determine the book classification method and required books. As for the specific books, I can slowly fill in them later. ?In this case, Liu Zhenxiangs comment that GJB/Z64-94 still has some shortcomings really saved the Committee of Science and Industry enough face. After all, it is actually a shell, equivalent to a fake book placed on the bookshelf to occupy a place... "I think this guideline is already very operational. You can consider sending an expert team to the 624 Institute to confirm the ground test results of the turbojet 14, and rely on the content of the guideline and existing engineering experience to evaluate the GJB/Z64- The operation and evaluation specifications in 94 are modified to better conduct distortion experimental evaluation technology research. ? This kind of internal small-scale symposium was relatively casual in nature, and Liu Zhenxiangs status in the field of aviation power was very transcendent, so he did not make any meanderings, but directly expressed his attitude after the introduction. I think the person who wrote this guide did not want to revise the old standards. As soon as Liu Zhenxiang finished speaking, another expert sitting at the end of the conference table expressed a different opinion. He flicked the document in his hand: "Because I am the last one here, I have some advantages and can see more time than all the comrades." "The 1994 standard was formulated based on the ARP and AIR series of general specifications. It has a strong British and American style in the evaluation method. For example, it uses a distortion network to simulate a typical distortion flow field and studies the impact of distortion on stability by describing the maximum instantaneous distortion. The influence of compressor surge or stall is established and the maximum dynamic distortion is established. On the one hand, this method is very costly and cumbersome. On the other hand, it does not fit well with my countrys existing aero-engine design system. "But the guide we just looked at has a completely different idea. It uses the turbulence degree in the engine inlet comprehensive distortion index to evaluate pressure distortion. The test method also uses the plug-in board that Academician Liu once proposed in 1986. Simulation method, but the plate shape should be optimized and discussed. "More importantly, in the last part of this guide, it also mentions the comprehensive aerodynamic stability assessment method in the engineering design stage. I took a brief look at it and it is definitely something that can be written by someone with experience in engine design. It is a guide. Very strong." So this is by no means a tinkering with the 1994 standard. We should treat it as a brand new standard that belongs to China! (End of this chapter) Chapter 114 The market cannot buy technology (two-in-one) Chapter 114 The market cannot buy technology (two-in-one) After getting through the phone, Du Yishan explained the current situation very simply and expressed that he wanted to hear the other party''s opinion. ?Of course, some content related to Ding Gaohengs identity has been hidden. Mainly, he was worried that if Chang Haonan knew that the director of the Science and Technology Commission was present to observe, it would affect the latter''s judgment. Or make the other person feel apprehensive when speaking. After hearing this, Chang Haonan''s first reaction was actually a bit confused. Even confirmed it with Du Yishan: Sowhats happening now is that because of the document I submitted, experts are arguing about which standard system should be chosen? Thats what happened, so I called you to see what you think as an author. Du Yishan gave an affirmative answer: "I have already read the contents of the document. From the theoretical basis to classification instructions to engineering experience and operating methods, it is very systematic and complete, so what you submit is definitely not just a technical manual, but a complete Analyze and evaluate the system. In this case, you must have had your own ideas about Chinas standard system during this process, right? "Well" Chang Haonan on the other side of the phone was speechless. He wanted to say that he didn''t. ??As a person whose main work experience before rebirth was in the 21st century, it is almost instinctive for him to use the autonomous system of later generations that was developed with reference to Russian and French technologies. So when I wanted to write this evaluation method, I never thought it would trigger such an exaggerated reaction. ?The original intention was to write a technical manual to make the GJB/Z64-94, which was impossible to start engineering, more complete and more usable. ??However, since Du Yishan has already figured out the plot in his own mind, it is impossible for Chang Haonan to slap his teacher in the face. And after the formers reminder, he has already realized the problem. At this point in time, since the domestic production plan of the MD90 is progressing smoothly and rapidly, the industry still has very strong illusions about the other side of the ocean, believing that it can completely rely on the US aviation industry system and use the "market for technology" approach. Improve your capabilities in the aviation field. Although the two countries had a serious naval and air confrontation at the beginning of the year, most people outside the military and military industry were not so sensitive to this matter. In fact, not only the civil aviation industry, this illusion actually exists in almost all fields. ? It was not until 1999, 2001, and even 2019 that I was subjected to all-round suppression that I was awakened bit by bit by painful lessons. The market cannot buy technology. This is true for all industries, whether it is automobiles, aviation, chemicals, or electronics. ?Giving the market away without technology will only allow others to eat up the market and suppress your technology at the same time! If you cannot find your own system, relying on others will only lead to a dead end. ?Of course, in 1996, it was a fool''s errand to immediately change people''s minds. In fact, even Chang Haonan himself in his previous life gradually changed after going through such a process. ?But everything must have a beginning. And this time''s accidental collision may be a good opportunity. Thats right, teacher. After thinking about this quickly in his mind, Chang Haonan made a decision: Actually, I already had this idea some time ago, so when I was improving the aviation engine stability evaluation system this time, I specially restructured the standard part based on the actual situation of the current domestic aviation industry. Although this is only a small part of the entire industry standard system, because it coincides with the high-altitude simulation test of Turbojet 14, I think this is a good entry point. If Chinas aviation industry wants to develop, it must have its own, independent development system. I hope to prove this through the Kunlun project. Over the phone, Du Yishan and Ding Gaoheng looked at each other, and they both saw surprise in each other''s eyes. ?Although Chang Haonan did not directly state which party he supported, from his just answer, it is obvious that his position is to make major changes to the existing standards. Or simply put, start from scratch. Even more radical It is not just about GJB/Z64-94, but also about reconstructing the standard system of the entire aviation industry and unifying the things that were originally pieced together. Neither of them thought that an undergraduate who had not yet graduated would think about issues from such a high level. ??And it really made him think about something. Thinking of this, Du Yishan asked a second question with strong interest that was not originally planned: "This is indeed a good idea, but Hufei is currently cooperating with McDonnell Douglas to produce the MD90 passenger aircraft, and the progress is quite good. If drastic changes are to be made to the standard system, how should such cooperation projects be handled? Do you think about it? Have you passed?" Of course Ive considered it ?Chang Haonan quickly organized his words while talking about less important content. He had never thought about the Hufei and McDonnell Douglas project before, and there was no need to think about it, because in a few months, the first thing Boeing would do after acquiring McDonnell Douglas was to disrupt the project and have it destroyed. MD90 related technical information from China. The meaning is very obvious. Even if you dont want this model, it is impossible for you to get the relevant technology from China. ?Of course, Boeings methods are very clever. They first stated on the surface that "the acquisition will not affect the cooperation on the main line project. As long as Hufei is willing to continue to work, Boeing will continue to provide support." But then he turned around and announced that he would completely close the McDonnell Douglas production line in the United States by the end of 1999 and would no longer develop new McDonnell Douglas family aircraft. . ?This move directly led to the collapse of the global civil aviation industry''s confidence in the MD series passenger aircraft. Even if Shanghai Aircraft Corporation built the aircraft, it would not be able to find customers at all. ??If domestic airlines rely on subsidies to internally absorb the problem, then building an aircraft will cost nearly 100 million yuan. ?As a result, the public opinion that "it is better to build than to buy" once again gained the upper hand, and finally Hufei had no choice but to proactively stop the project. During the ten years of cooperation, in order to adapt to the American system represented by McDonnell Douglas, Hufei has given up the standards and experience formed during the Yun-10 period. Now that MD90 production has been stopped, the American system has not adapted. In the end, the attempt was all in vain. In fact, the mainline aircraft project to jointly produce the MD90 went astray from the beginning. The aviation manufacturing industry is a technology-intensive industry that can provide a large number of high-paying jobs and cultivate a group of skilled workers and engineers. ?These talents will also be helpful to the development of China''s own aviation industry in the future. From this perspective, there is no problem in manufacturing aircraft for others. ??And the more produced, the better. It would be best to produce the entire aircraft in China. However, in the MD90 project, OEM production is only a small part. The real focus is that someone wants to fully bind the entire aviation industry, at least the civil aviation industry, to the United States. This is not going to end well. ? Even if it is really established, it is just a flower shelf that will fall down as soon as it is pushed. Not to mention China, even Japan, a die-hard brother of the United States, has suffered a **** blow on this road. ??Every time there is any sign of a breakthrough, he will be suppressed from all directions with fatherly love. By that time, if your entire industry system is completely dependent on the other party, you will naturally be unable to fight back. Chang Haonans idea is that long-term pain is worse than short-term pain, and there is no need to drag it out until 1999 in entanglement like in the original timeline. It would be a good thing to cut off from the US aviation industry system earlier. ?Save these three years and use it to improve your own system, or even go back and do pre-research on new models. Wouldnt it be good? Independence is the only right path. But there is no way to say this directly. On the one hand, Chang Haonan, as a person with no background in commercial law, makes such a headless judgment directly, which is outrageous and unconvincing. On the other hand, Chang Haonan really doesnt understand these things. He only knows that Boeing finally successfully acquired McDonnell Douglas. As for the exchange of interests and infighting... Sorry, I dont know. So in the end, he decided to adopt a more diplomatic approach. Teacher, I think that in terms of specific technologies, it is necessary to absorb or introduce advanced foreign experience. It will also help us quickly narrow the gap, but this is not inconsistent with us establishing an independent aviation industry system. "I have seen a story about the Ermao Black Sea Shipyard in a magazine before. After the disintegration of the Soviet Union, the No. 0 dock of the shipyard at that time was the Ulyanovsk aircraft carrier, which was about one-third complete. The West has been worried It will be completed after the turbulent period." Soon a company from Norway approached the Black Sea Shipyard and ordered two cargo ships with a displacement of 100,000 tons, but they needed to be built according to Western standards, and only the currently occupied No. 0 slipway in the entire shipyard could build this size. of ships. Ermao finally decided to dismantle the Ulyanovsk to make room for it, and let the Black Sea Shipyard adopt Western shipbuilding standards to transform the slipway in preparation for the production of new orders. But after the aircraft carrier was demolished, the Norwegian company suddenly announced the cancellation of the order, and after paying a liquidated damages, there was no news again. The Black Sea Shipyard abandoned its shipbuilding capabilities and experience under Soviet standards and failed to obtain new orders, so it quickly lost its ability to build large ships. After telling this story, Chang Haonan stopped talking any more. He knew that Du Yishan would definitely understand. In fact, many people know the story of this Black Sea shipyard. ?The American approach to the MD90 project is almost a reset of the original version. What you are playing is a conspiracy. ?However, although the method is not new, it is very easy to use. ?Chang Haonan was able to detach himself and sort out the whole thing, not because he was smarter than others. Simply because he figured it out and knew the direction of future development. ??Just as Chang Haonan was thinking, the faces of Ding Gaoheng and Du Yishan on the other side of the phone became serious. They certainly knew what Chang Haonan wanted to express. It is nothing more than that China Aviation Industry is also facing the same situation as the Black Sea Shipyard. The MD90 is the two freighters ordered by the Norwegian company. Okay, I understand what you mean. Du Yishan took a deep breath, knowing that todays call should end here: The Science and Technology Commission will consider this matter comprehensively, and you will promote the simulation test of the Turbojet 14 as soon as possible. If you want to expand the evaluation standard to a new standard, sufficient engineering data is necessary. Okay, teacher. "Then you go ahead and do your work first. The subsequent decision will be issued in writing and we will discuss it at that time." After finishing speaking, he hung up the phone, then raised his head and looked at Ding Gaoheng across the desk again. The atmosphere of silence lasted for about a few minutes. Ding Gaoheng lit up a cigarette again and took a puff this time, but his movements were not very skillful. This student of yours is indeed very different. Todays situation is completely beyond my expectation. Du Yishan waved his hand: I thought this would be an engineering-focused conversation "In any case, the possibility raised by Comrade Xiao Chang cannot be ignored." Ding Gaoheng took another puff of cigarette: "If this is the case, all we can do is to make up for it." Obviously, after talking to Chang Haonan, he had made a decision. The MD90 project has even started production of parts and components. It cannot be stopped without any reason. How are you going to deal with it? ??Although this is a question, judging from Du Yishan''s expression, he obviously already has his own ideas and is just checking the answer with Ding Gaoheng. Mr. Du is asking questions knowingly The latter threw the cigarette **** into the ashtray and rubbed his dry lips: Comrade Xiao Chang also said just now that introducing advanced foreign experience is not inconsistent with our establishment of an independent aviation industry system, so... Change the focus of the mainline aircraft project to digesting and absorbing key technologies, and summarizing and accumulating experience in the assembly and manufacturing of large civil aviation aircraft. We will also use these in the future. When the adjournment time ended and the meeting resumed, the atmosphere became completely different. Ding Gaoheng, who previously sat at the top and never expressed any attitude, almost got straight to the point. He said that the construction of a new and independent aviation industry standard system is imperative. Many of the old standards are just to solve problems when objective conditions are insufficient to form a basic framework system. Nowadays, with the advent of technology, In order to improve the development and progress of the system, consideration should be given to completely supplementing and replacing inappropriate content. As the director of the Science and Technology Commission, the weight of his statement is naturally completely different. The second half of the meeting took less than half an hour. ?Although several experts on Hufei chose to reserve their opinions, they still agreed to start preparations for the establishment of a new standard. The advantage of the system of the Commission for Science, Technology and Industry for National Defense is that although there may be different opinions during the discussion process, after the final decision is made, the entire system can still ensure that it works together. So an expert group of 10 people headed by Liu Zhenxiang was set up that night. Their tasks are twofold. The first is to go to Fucheng to follow the testing of the Turbojet 14 and conduct a more detailed review of the "Aviation Engine Inlet Distortion Test and Assessment Method". Second, if the approval is successfully passed, then GJB/Z64-94 will be reconstructed on the basis of the "Method" to establish a new gas distortion test standard that is adapted to China''s actual conditions as a new standard for the aviation industry. The starting point of the system. ??The hurricane caused by Chang Haonan''s butterfly is becoming more and more violent. The extra update is still in the afternoon (End of this chapter) Chapter 115 Expert review (added 38 updates for last month’s monthly ticket financier flankerr) Chapter 115 Expert Review (Added update 38 for flankerr, the monthly ticket holder of last month) The next afternoon, another Boeing 737 landed at Fucheng Southern Suburban Airport. The expert group on the plane was naturally formed just last night. Liu Zhenxiang, who led the team, walked down the gangway first, with a look of exhaustion and excitement on his face. After the meeting last night, the 10 members did not even have time to go home before the Commission of Science, Technology and Industry for National Defense began to prepare for the standard approval work overnight. After all, the evaluation method submitted by Chang Haonan seems to be quite complete. They also hope to start work immediately after landing, and it is best not to waste any time. Until I set off for Nanyuan Airport, I finally came up with a feasible working method. So from yesterday to now, Liu Zhenxiang only rested for about two or three hours on the flight just now. The dazzling afternoon sunlight made him squint his eyes slightly. For him, Fucheng is almost like a second home. In the past nearly twenty years, he has hardly left here except for necessary meetings. In front of me was a very familiar scenery, and a minibus specially sent by the 624th Institute to pick up the airport. There were several receptionists from the 624 Institute standing at the door of the car. The first one saw someone getting off the plane and ran up quickly. Academician Liu, welcome home. Although Liu Zhenxiang is no longer responsible for presiding over the work of Institute 624, his prestige and status here will not change. The two then shook hands. ?After a few simple greetings, the other party may have seen Liu Zhenxiangs tired look that he couldnt hide: Should we arrange for the comrades in the expert group to take a break first? Liu Zhenxiang wanted to refuse directly, but he still looked back at the other people following him, hesitated for a moment and asked: How are the preparations in the office for the review? Comrades from the 601st Institute are ready to start the review at any time, and the intake distortion test of the turbojet 14 engine will also be conducted later today. "oh?" Hearing these words, the fatigue on Liu Zhenxiangs face was almost instantly wiped away: In this case, we have to hurry up. Get in the car, dont slow down because of us. The review meeting was held in a two-story building not far from the control room of the high-altitude simulation test bed. But as the absolute protagonist of this review, Chang Haonan did not appear at the door of the venue until the last moment. He is still wearing the blue work clothes he wore during the experiment. Even the sweat on his face has not been wiped off. ?However, no one cares about this. Everyones attention is focused on the materials prepared for themselves. After all, these things were all completed in 624, so the content is much more detailed than the one submitted to the Commission of Science, Technology and Industry for National Defense, and even includes some test data of the Turbojet 14 for theoretical proof. More importantly, finally there is no need for ten people to read two books together... The performance of this turbojet 14...isnt it for launching satellites? Soon someone noticed the jaw-dropping data written in the information. "The thrust-to-weight ratio in the bench state is 7.2... This data on paper is higher than the RD33 used in the MiG-29, and the fuel consumption is not much higher. Is it reliable..." "Don''t just look at the thrust-to-weight ratio at sea level. Look at it. The envelope range it draws still has obvious characteristics of a turbojet engine. Overall, it is still worse than the third-generation turbofan, and it does not look like the result of a satellite. This difference is too small. I think the only two test items left in the test project are air intake distortion and full life test. No wonder we have to submit the test standards at this time..." As the only person in the expert group who is familiar with Chang Haonan, Liu Zhenxiang did not participate in the discussion about the performance of the turbojet 14, but took advantage of a short period of time before the review meeting began to come to the former: Xiao Chang, you can be said to be a blockbuster this time. Almost the entire Commission of Science, Technology and Industry for National Defense is paying attention to this project review. No wonder there is such a big battle... Chang Haonan looked at the 10 seats divided into two rows in front of him, and he did not expect it to be of this size. After receiving the evaluation guide you sent yesterday, the Science and Technology Committee immediately held a symposium. When it came to whether to start a new approach to new funding standards, the exchange of opinions was quite fierce. Later, Director Ding directly expressed his position, saying that if Chinas aviation industry wants to develop, it must have its own and independent development system... Liu Zhenxiang did not know that Ding Gaoheng and Du Yishan had contacted Chang Haonan during the recess. He just assumed that the former had his own plans and did not express his position at the beginning. He just wanted to hear everyone''s thoughts. "etc" ?Liu Zhenxiangs narration just now made Chang Haonan more and more wrong. ??Why does the speech made by Director Ding of the Science and Technology Committee at the meeting feel so familiar, as if I have heard it somewhere... Oh, it turns out I said it myself. ?Thats okay. But the person who called yesterday was obviously Du Yishan... ?Chang Haonan gradually formed a guess in his mind. Mr. Liu, did my teacher also attend the meeting you mentioned? He asked cautiously. Of course, but he is not an expert in the field of aviation development. In addition, he is old and has concerns about avoiding suspicion, so he did not join our review team. ?After hearing this answer, Chang Haonan''s facial muscles twitched slightly. ??When Du Yishan made the call yesterday, there were indeed other people present. Fortunately, after recalling it, he determined that he didn''t say anything out of the ordinary. Judging from Director Ding Gaohengs subsequent statement, the other party should still agree with his idea. ??Its not surprising if you think about it carefully. The formers father-in-law presided over the national science and technology work in the 1950s and 1960s, commanding many key national defense projects such as two bombs and one satellite. He was called a marshal in the science and technology community. Having such a background, you will naturally be more inclined towards self-reliance. ?However, the head of the Science and Technology Committee has been persuaded before the review meeting began. Why does it seem that he has been appointed... Dont put too much pressure on the review, just follow your preparations in advance. ?Seeing Chang Haonan''s expression changing constantly, Liu Zhenxiang thought he was a little nervous because of the unexpected high level of attention, so he patted the former''s shoulder lightly: "Of course, national standards involve not only technical aspects, but also industrial policies, development routes and even national strategic decisions, so wait a while and the expert group may ask questions related to these aspects, so you should not feel any psychological burden. , speak your mind boldly. Chang Haonan said in his heart that my courage yesterday was so bold that you cant even imagine it, but on the surface he just nodded: I know, dont worry, Academician Liu. In short, this is how the expert review of the "Aeroengine Inlet Distortion Test and Assessment Method" began. (End of this chapter) Chapter 116 A new starting point for the autonomous aviation industry (two-in-one) Chapter 116: A new starting point for the independent aviation industry (two-in-one) Because the preparation time was very short and there was still a lot of data to be obtained, Chang Haonan had not conducted any rehearsals before. Fortunately, the entire assessment method was basically completed by himself. Although the aviation industry standards involved have not yet been written out, they have been deeply rooted in Chang Haonan''s mind. So I came prepared. Experts, I will give a detailed description and explanation of the contents of the Guidelines for the Assessment of Inlet Total Pressure Distortion of Aviation Turbojet and Turbofan Engines. Chang Haonan stood next to the projector screen, looked at the ten expert panel members in front of him, took a deep breath, and officially started his introduction. The first part is naturally the definition. ?Although the people sitting here are all experts in the field of aviation power, this link is still essential. Because what he is introducing is a "standard". And it is the standard that created the world. Just like books running on the same text or cars running on the same track. Before this, 10,000 people can have 10,000 interpretations of a certain concept in their minds, but after that, they must be unified. Standardization is the cornerstone of science and the romance of science. The aerodynamic stability of an aeroengine refers to the ability to maintain the working state of the engine relative to disturbances based on aerodynamics, regardless of factors such as engine structural strength Because the highest pressure ratio point and highest efficiency point of the high-performance compression component are very close to the stability boundary; and in order to ensure its stable operation, the surge margin is set so that the boosting capacity that the compression component can provide is not fully utilized. To some extent, it is equivalent to wasting the design potential of the engine..." For compression components, the characteristic diagram shown in Figure 1.3 is divided into a stable operating area and an unstable operating area, and the dividing line can be defined as the surge boundary "There are many types of destabilization factors that affect the aerodynamic stability of the engine, and their effects on the engine are also different. Some destabilization factors increase the common working line of the compression components, and some destabilization factors move the stability boundary of the compression components downward... " Chang Haonan projected a characteristic diagram of compression components onto the screen and introduced it carefully with a long pointer in his hand, while the ten experts below were also busy writing and carefully recording the content they were interested in. "To this end, I analyzed and counted a large number of engine instability failures that have occurred in the past, and summarized 16 types of stability degradation factors in the evaluation specifications, including pressure distortion, temperature distortion, shock wave, wind gust, Reynolds number change, switch-on/ Disconnect the afterburning force and unsteady heat transfer..." Considering that there are many types of destabilization factors, I divided them into four major categories according to the mechanism that affects the engine surge margin, and established mathematical models of their impact on engine aerodynamic stability: steady-state destabilization factors, dynamic process Class destabilization factor, intake distortion class destabilization factor, statistical class destabilization factor. "For the first three types of destabilization factors, numerical calculation methods are used for quantitative analysis and evaluation; for the fourth type of destabilization factors, statistical normative values ??will mainly be used to evaluate them. Below I will focus on the third type, which is the air intake Detailed engineering methods are given for the evaluation of distortion-type destabilization factors..." ??If it were Chang Haonan who had just been reborn, it would still be quite difficult to explain even a part of such a rather complicated set of standards. But in the past few months, especially since joining the 83rd Project, his past shortcomings in engineering experience have been strengthened, so he can easily explain some slightly obscure content with calculation examples or illustrations. Furthermore, Chang Haonan currently has a unique advantage. It was he who really participated in the Turbojet 14 project. The first engine model in China that has gone through all testing processes. Although I didnt participate from the beginning, it was enough. ?After communicating with Du Yishan on the phone yesterday, Chang Haonan began to consider restructuring the standard system of the entire aviation industry. As a person who has experienced the second decade of the 21st century, only he knows how great it is for engineers to have a completely independent set of technical standards. Many development processes can be completed using encapsulated standard models as easily as building blocks. By analogy, its like writing programs in assembly language or even machine language in the past, but now you can suddenly use high-level languages ??directly. Therefore, when introducing the idea of ????numerical simulation, he specially drew a pie for the members of the expert group present: It should be noted that this evaluation guide is not only an operation manual for aerodynamic stability testing, but also a part of the aerodynamic stability analysis system of aeroengines. "When our standards in the field of aerodynamics are complete and accurate enough, we can establish a simulation system suitable for multiple types of engines to evaluate the impact of various destabilization factors on engine aerodynamic stability, allowing users to choose packaged The standard model is assembled into the target engine for simulation, thereby guiding the design process of the inlet matching the engine..." When Chang Haonan talked about this, several experts on the other side had already expressed enchanted expressions. Of course they know that this is something that has not been written yet. But this cake is so delicious. China''s aero-engine project has long been used as a supporting aircraft project and lacks technical continuity. Therefore, the pre-research and design process of each new model is like going through a disaster, requiring a lot of repetitive work, wasting a lot of time and In terms of funding, the results are often not good. ?The experts sitting here have all experienced this helplessness, so they hope that the idea proposed by Chang Haonan can come true. You must know that modular numerical simulation and simulation of engines is something that developed countries, including the United Kingdom and the United States, have never thought of. ?In this era when most people want to follow the footsteps of the United States or Europe, it is not easy to have such an "out of the ordinary" idea. Some people have even begun to imagine the impact this simulation system will have. The explanation is gradually coming to an end. ...If the local surge margin SM1 is required to satisfy [max (SMP^2, SMA^2) + SMW^2] + SMT + SMW>SM1, then the local surge margin calculation is required to compensate for temperature distortion The method is After obtaining the local required stability margin of each destabilizing factor, the local required stability margin of the non-random factors is considered by the algebraic sum method, and the local required stability margin of the random factor is considered by the sum square root, so that Get the total required stability margin. Among the several typical operating conditions considered, the one with the smallest remaining stability margin is the weak link in the engines aerodynamic stability design, and is also the object that needs to be optimized during the engineering design stage. Speaking of this, he directly released a diagram of the total required stability margin of the turbojet 14. It clearly states that when flying at high altitudes or when the afterburner on/off conditions change, this is the weakest link in the stability of this engine. Consistent with the data obtained during the test flight. ?Chang Haonan turned around and bowed slightly to the members of the expert team. This is the end of my introduction on the aerodynamic stability testing and evaluation methods of aeroengines. I have done a little bit of work. Thank you all. There was a brief silence. About a few seconds later, the first round of applause from someone unknown rang out. Subsequently, the entire conference room was instantly filled with applause. ??Although the members who entered the expert group were all those who expressed their support for setting new standards at yesterday''s symposium of the Committee of Science and Industry, no one expected that Chang Haonan''s work had been completed to such a high degree. At this point, everyone knows that the first standard that belongs entirely to China Aviation Industry is about to appear. ?Of course, the routine question-and-answer session is still indispensable. Its just that the atmosphere is completely different from ordinary review meetings. Under normal circumstances, the nature of the questions raised by the review team is more similar to "questioning", which requires the people on the stage to explain, clarify or correct things that were not explained clearly before, or there were omissions or even mistakes. Somewhat similar to a graduation defense, but much more serious in nature. After all, national standards cover a wide range of areas and have great influence, and there is no room for sloppiness. Therefore, sometimes, this questioning process may even last more than a daybecause problems may be discovered and need to be corrected off-site. So it is not uncommon for the review meeting to last for ten days and a half. However, in Chang Haonan''s case, because the introduction he just gave was extremely complete, and he also had the experience of a real project such as the Turbojet 14, the style of the question-and-answer session this time was more like...asking for advice. After all, too many new concepts, theories and engineering methods have been introduced at once. Comrade Chang Haonan, in the evaluation guide document you provided, it was mentioned that a plug-in plate distortion simulation device is installed at the compressor inlet. Why should this plug-in plate be set as a single crescent plate? The first person to ask a question was a middle-aged engineer who didn''t look too old. Judging from the name tag on the table, his name was Lin Yuang. At yesterday''s meeting, it was he who was the first to propose that a new standard should be established based on the assessment guide, rather than making minor improvements based on the old 1994 standard. It is precisely for this reason that Lin Yuang pays great attention to every detail that Chang Haonan talks about. As the initiator, he must ensure that nothing goes wrong. Many people with an engineering background are more troubled by issues involving principles. ?However, Chang Haonan''s theoretical foundation is relatively solid, and he has collected a lot of data in the past few days, so he walked steadily to the blackboard next to him without any panic, picked up the chalk and drew four simple diagrams, and at the same time explained: In the test of Turbojet 14, we tried four different plug-in distortion simulation devices, including single-piece crescent shape, two-piece crescent shape, circular ring shape and sector shape. "According to the results obtained, the four design schemes are relatively close in their ability to generate distorted flow fields, but Scheme 1, which is a single crescent plate, involves the fewest independent variables and only has one baffle height H. For the early stage, Numerical simulation and optimization work for stability during the engineering design phase is more beneficial. For example, during our renovation of the turbojet 14 compressor, we specifically considered optimizing the surge margin Following this, another person asked: In the test operation method in the guide, you mentioned that it is necessary to use a plug-in distortion simulation device to gradually increase the distortion intensity until the engine enters an unstable operating state, in order to obtain the stability margin and Coefficient of distortion sensitivity, does this mean that an engine must be destroyed every time a stability assessment is performed? " "This depends on the condition of the engine itself. Theoretically, for a well-designed aeroengine, the distortion index can be adjusted to bring it into a rotating stall state that will not cause permanent damage to the structure, but this requires a lot of experiments. and simulated data as support. Facing this slightly sharp question, Chang Haonan did not change his expression and still had a confident smile on his face: "This is what we hope to do in the future, which is to use the flow data at the compressor inlet to determine the condition of the engine during the flight of the aircraft. When there are signs of surge, we can remind the pilot or even actively adjust flight attitude to avoid more serious instability failures. Furthermore, stability evaluation is part of the extreme capability test, just like the static test of the aircraft and the full life test of the engine, so damage to the test object is originally planned. The questioner nodded, obviously agreeing with this explanation. During the flight tests of most models, prototype No. 02 will not be seen, because generally No. 02 will be a static test machine, and the last part of the static test of the whole machine is to Aircraft destruction as termination condition. Although it may sound a pity, it is essential. Chang Haonan answered several questions in a row that followed fluently. Finally, after more than four hours of marathon review, Liu Zhenxiang, the leader of the expert group, wrote the words "agreed to pass" on the submission and signed his name. Subsequently, nine other people also signed, which was regarded as the official approval of the evaluation method at the level of the Commission of Science, Technology and Industry for National Defense. After going through some subsequent approval processes, it will be officially "regularized" and become a standard. According to the numbering convention, it will be named GJB/Z64A-96. This is a name worth remembering. ?Although it is inconspicuous, it is the starting point for China''s aviation industry to get rid of external dependence and truly move towards independence. ?After the review work is completed, the expert team will not leave Fucheng immediately, because one of their first-stage tasks is to track the testing of the turbojet 14. It can be regarded as having an intuitive understanding of this set of evaluation methods. ??When Chang Haonan led ten members of the expert team into the control room of the high-altitude test platform, Yao Mengna''s expression, which was originally calm, became a little stiff. ?Even if he is a student of Academician Du Yishan, not everyone can face the expert group sent by the Commission of Science, Technology and Industry for National Defense without changing his face or heart like Chang Haonan. ?This battle is just right for an undergraduate student. But its a bit too big for a PhD student. What''s more, she always felt that she was just helping Chang Haonan, and she was not very confident in on-site command. Otherwise...you will still be in charge this time? ??While several members of the expert team were pulling Liu Zhenxiang to ask questions, Yao Mengna approached Chang Haonan who was gulping down water. Its okay, dont be nervous, just follow the steps. Chang Haonan''s voice was already hoarse. The review meeting that lasted from afternoon to evening almost exhausted all his energy: The conductor of the test in the past few days has always been You. Now if I change the person on the spot, I need to start the running-in all over again, which is inappropriate. ?Seeing the rare nervous expression on the senior sister''s face, Chang Haonan patted her shoulder to encourage her. As a result, the other party seemed to become more nervous... I posted it last night when I forgot to set it...I will update it at night as usual (End of this chapter) Chapter 118 We need better airplanes (2-in-1) Chapter 118 We need better airplanes (2-in-1) ??While communicating with Yang Huimei, Lu Yuying paid special attention to the members of the Pakistani delegation who got off the four minibuses. Looking closer, I did find some differences. Although most people are wearing military uniforms, compared with previous times, the proportion of air force officers in this delegation is significantly higher, and judging from their appearance and age, many of them look like active pilots. It is normal to bring a few pilots to experience flying when you come to buy an airplane. However, because most of the senior officers of the Air Force are pilots, it is rare to see so many young faces. ??Seeing the members of the Pakistani delegation getting out of the car one after another, Yang Huimei couldn''t help but leave them alone. But before turning around, he still said to Lu Yuying: "In short, the situation this time is indeed special, and the superiors also attach great importance to it. Before I came out today, Deputy Commander Shen Tianfeng of the Air Force specifically set the tone and said that China and Pakistan would deepen exchanges in military technology and training." ?Looking at the other person''s leaving figure, Lu Yuying knocked on her head in distress. As an engineering technician, he does not like this ambiguous statement. It would be nice if a precise range could be given, like aircraft design. Unfortunately, this is almost impossible in the field of foreign exchange. Since 1988, the two countries have confirmed their intention to cooperate based on the Super 7 program, a deeply improved version of the J-7. However, due to differences between the two sides on the technical aspects of the fighter aircraft, and the Pakistani interest in the middle turning to the F16, the project stagnated for a long time. It was not until the year before last, that is, in 1994, that Pakistan, which had no hope of purchasing the F16 due to US sanctions, re-started formal negotiations. ?But at this time, their requirements for the aircraft have changed from a "low-end fighter to serve as a starting point for the F16" to a "main fighter that can replace the F16." The initial plan of the Super 7 program, the J-7CP obviously cannot meet this requirement. If a new aircraft were to be designed according to Pakistan''s technical requirements, the amount of work and cost would be much greater. For both China and Pakistan, the associated risks will also increase exponentially. So a more in-depth cooperation model is needed. However, it is the aviation industry sector that has the final say in deepening cooperation between countries. In short, the progress of the negotiations has been stagnant until today. At this time, he suddenly said that he wanted to deepen communication How deep should it be added? Project No. 10? ?Dont even think about it, its absolutely not allowed to be seen. No matter how good Pakistan is with China behind the scenes, they are still a U.S. ally in black and white, and they cant just shake everything off. But what then? Looking at the opponents posture this time, it is definitely not as simple as buying another batch of J-7s. And it also involves cooperation in the field of aviation technology, which is even more sensitive and troublesome. Several projects currently underway at 611 Institute involve various technologies and subsystems, which ones can be sold and which ones cannot... ?Lu Yuying has no idea about these issues. In fact, not only Lu Yuying had no idea, but because China was still immature in equipment export at this time, even the people in China Aviation Technology had no idea. But no matter what, the matter has come to this, and we can only bite the bullet. After all, the military is still tightening its belt and living a hard life. The entire military industry sector is seriously short of orders and even needs to convert military products into civilian products to maintain its livelihood. Although the situation is much better than the most difficult period in the 1980s, funds in all aspects are still tight. ?For example, the J-7F fighter jet, which is currently in charge of Lu Yuying himself and is progressing quite gratifyingly, has a total project allocation of only 50 million yuan. ??If it werent for a very accidental opportunity that allowed him to contact the reinforcements through a paper, which greatly reduced the development cost of the aircraft, I am afraid that this deeply improved model may not have reached the end. So in this case, all the more thoughtful military industrial companies have turned their attention abroad. ??If you can get orders from foreign customers and exchange them for foreign exchange, then even if all of these funds may not belong to the unit, at least a considerable part can be left to solve some urgent problems. We can only take one step at a time ?Lu Yuying took a deep breath and walked in the direction of the delegation. An officer led by also stepped forward. This is Chief Engineer Lu Yuying of the Aviation Industry Chengdu Aircraft Design Institute. He is responsible for the development of multiple improved models of J-7 aircraft. ?Yang Huimei, who was standing beside the two men, first introduced Lu Yuying''s identity to the officer, and then turned slightly to face the latter: This is the deputy chief of staff of the Pakistan Air Force and the leader of the Pakistani delegation, Major General Shahid Latif. The two shook hands. ?Latifs opening method is very unique: Before I was grounded because of my age, the last model I flew was the J-7MP fighter designed by you. At that time, it was definitely a pretty good aircraft. I am very honored to receive such a comment from you, Mr. Major General. ?Just like all parents like to hear other people praise their children, Lu Yuying, a designer of 611 Institute, naturally also enjoys it. The official language of Pakistan is Urdu, but the vast majority of people actually use English, so communication between two people does not require an interpreter. ?Of course, Latif also understood what he meant. It was a pretty good airplane back then, but the implication is that it is somewhat behind the times now. This is also an undisputed fact. The J-7MP is essentially a J-7B that has been retrofitted with a large number of Western equipment and can use French-made R550 air-to-air missiles. It was still visible in 1984 when it was first delivered, but now in the mid-1990s, regardless of flying Neither the performance nor the on-board equipment can keep up with the times. ?So Lu Yuying followed Latif''s original plan and walked towards the final assembly workshop of Factory 132 with Latif and a large delegation of almost forty people behind him. ?There is parked there a J-7MG that has rolled off the assembly line but has not yet had time to transfer to Yanliang for test flight. Since we are not sure what the other partys fundamental purpose is, it will never go wrong to start with some more conservative projects. Of course, Lu Yuying did not forget his identity as a "salesman" and kept introducing this 611 Institute''s current flagship model to the other party on the road: Mr. Major General, since the J-7MP uses a lot of Western equipment, and the overall performance is now slightly lagging behind, we have discontinued this model and are preparing to export a new improved model, the J-7MG. The wings of the new aircraft have been changed from the large swept delta wing in the past to a double delta wing. The inner wing sweep angle is 57 and the outer wing sweep angle is 42. It also has front and rear edge maneuverable **** and is equipped with turbojet. The maneuverability of the 13F engine has been improved by at least one-third compared to the previous model..." While talking, the group of people had already arrived outside the assembly workshop and saw the J-7MG parked inside through the open door. ??Yang Huimei is a foreign trade expert. She doesnt know much about airplanes. In fact, if she hadnt gained some knowledge in the past 24 hours, she wouldnt even be able to tell the difference between the J-6 and J-7 equipped by the Pakistan Air Force. Only a strong 5 because the nose is pointed and easier to recognize. But she understands people''s hearts. When Lu Yuying first introduced the technical features of the new aircraft, Latif was still quite interested. But when he saw the real J-7MG machine parked in the workshop, although there was no obvious performance, the slightly slumped facial muscles still revealed a feeling of disappointment. ?After hinting Lu Yuying several times to end his long story quickly, Yang Huimei had no choice but to interrupt him directly: Commander Lu, I see that there are many pilots from the Pakistan Air Force in this delegation. I wonder if we can let them sit in the cabin and experience it for themselves? Lu Yuying was stunned after hearing this, and then nodded. That is certainly possible. For aircraft prepared for export, the cockpit experience is a very important and common process. Besides, the J-7MG has no secrets at all, and it must be sold out after all. ? Judging from the past arms sales relationship between China and Pakistan, it would be no problem even for the latters pilots to experience flying aircraft into the air. The accompanying translator quickly translated Yang Huimeis words to the members of the delegation. ?After seeing Lu Yuying nod in agreement, after a brief exchange, a middle-aged pilot who looked to be in his 40s and had a big beard walked out of the crowd. ?But people in South Asia tend to look older, so he should actually be a little younger. ?Latif glanced at him, and then introduced in a very proud, even a bit showy tone: This is Lieutenant Colonel Mohammad Sami, the best ace pilot of our Pakistan Air Force. He has flown all models from J-6 to F16, and has achieved a total of 7 air combat results. Its really good. Lu Yuying didn''t react on the surface, and just motioned to the staff nearby to move a boarding ladder from the staff of the 132 factory nearby, but she couldn''t help but comment in her heart. Due to the special geographical location and practical situation, the Pakistan Air Force has rich combat experience, especially air combat experience. Most of the time, it is against a weak enemy and a strong one, and it is by no means a result of abuse. ?After Latifs introduction, Sami saluted Lu Yuying crisply, and then got into the cabin with the assistance of several ground staff. ?Another person who had been following Sami also climbed up the boarding ladder and observed the situation inside the cockpit. ??It''s just that this man is wearing an army''s khaki military uniform, which is quite conspicuous among the navy blue. Just when Lu Yuying was about to step forward to introduce the specific upgrades of the cockpit of this aircraft compared to the old J-7M, Major General Latif appeared next to him and patted him on the shoulder. Mr. Latif? ?Latif glanced at the person standing on the boarding stairs, as if to confirm that the other person''s attention was not here, and then whispered: "Mr. Lu, our pilots have actually experienced your army''s J-7E fighter jet many times. Frankly speaking, it does not meet the current requirements of our army." Obviously, this means to be ready to speak openly. ??Although Lu Yuying couldn''t figure out why the other party''s attitude suddenly became clear, it was always a good thing. So what do you want specifically? he asked in a voice that only two people could hear: Not only this time, when your country was negotiating the Super 7 project before, the requirements it made were also very ambiguous. The reasons for this are very complicated, but today I can clearly disclose to you that our requirements are divided into two parts. ??Latif speaks English very fast. Fortunately, he does not have the heavy accent common in South Asia. Lu Yuying can understand everything: First, in the short term, preferably before the end of next year, we will obtain a model with better performance than the J-7P and Mirage 3. It only requires pure procurement and does not involve technology transfer. "The second is to obtain a fighter jet with comprehensive performance and development potential that is not weaker than the Mirage 2000C and preferably close to the level of the F16C within a maximum period of 5-8 years. Our Kamra Aviation Complex is required to participate in the research and development process. And at least the ability to be responsible for aircraft final assembly and intermediate maintenance. Before the end of next year? Lu Yuying was stunned when he heard this time point, and then thought about it in his mind. ??If another amount of funds can be injected to improve some work efficiency, the J-7F project he has on hand seems to be able to meet this requirement. "If you think the performance of the J-7MG is still insufficient, we currently have a deeply improved model of the J-7 that is about to be completed. By changing the nose air intake to the chin air intake, it frees up the ability to install a 600mm diameter radar. " The design is about to be completed...can we keep up with the progress? Latif was also obviously interested. "We adopted a, uh... special design method, so there are not many changes compared to the original model. If nothing unexpected happens, there will be no problem in completing the first flight early next year, because they are all mature subsystems, and the test flight progress will be very fast. " What about the airborne weapons system? Can it be replaced with a radar made in Italy or France? Well ?Lu Yuying hesitated for a moment: If it is a pure purchase and does not involve joint research and development, since the initial investment is borne by us, the time and capital costs of hastily replacing new airborne equipment will be relatively high. And Mr. Major General can rest assured that the avionics equipment produced in China is also compatible with the Aspaid air-to-air missiles produced in Italy. ?This explanation is half true and half false. In terms of the improvement of the J-7, the localization rate is so tight, and the economic account is indeed one aspect. As a light fighter, the price of the J-7 cannot be set very high, and the prices of subsystems from Italy or France often reach sky-high. ?For example, the J-7MP that was previously exported to Pakistan used a lot of foreign technology. If the cost was calculated according to the official exchange rate, it would even lose money... ?? At that time, due to the urgent shortage of foreign exchange, and the J-7M was also tasked with opening up overseas markets and building a reputation, it was possible to exchange Chinese currency for U.S. dollars even at a loss. But it would be unwise to do such a thing now. ??However, there is another layer of consideration that Lu Yuying did not mention. That is, after entering the 1990s, as the relationship between China and the West turned cold, foreign trade projects involving third-country technology encountered too many non-technical obstacles. Both China Aviation Technology and the aviation industry often faced this problem. And consume a lot of energy. ??And it will also bring huge default risks. ?Hearing this explanation, Latif showed a somewhat troubled expression. The problem of matching the 208 radar and the Aspad medium-range bomb was not solved until the end of 1995, less than a year ago. Lets not talk about whether the reliability problem has been completely solved. Lets talk about this 208 radar. It is an early monopulse radar, and its performance is really poor. Because the pulse Doppler system is not used, although the detection range on paper is more than 30 kilometers, the interception range, detection accuracy, and anti-interference... It can only be said that the problem of presence or absence has been solved. Compared with the earlier 204 radar, it can finally achieve the ability to lock on targets and guide attacks. In short, there is a lot of room for improvement. Actually, our J-7F does not have to be produced from scratch. ?Seeing the other party''s delay in giving an answer, Lu Yuying also knew that he had to come up with some substantial chips. It can also be obtained by upgrading the J-7P/MP series fighters already equipped by your army. The difference is that the diameter limit of the radar is reduced from 600mm to 520mm, and the flight performance will even be improved. "oh?" ?Latifs eyes really lit up. Im a bit busy today, I wonder if I can add another chapter. (End of this chapter) Chapter 119 Unfathomable needs Chapter 119: Unfathomable needs As the saying goes, there are no products that cannot be sold, only prices that cannot be sold. The performance of the US$4 million J-7 is lagging behind, while the US$2 million J-7 is durable and reliable. Although the fundamental purpose of Latif''s trip is not to seek a limited improvement of the J-7, if the more than 120 J-7P/MPs equipped by the Chinese Air Force can be upgraded at a lower price, , it can be regarded as an unexpected surprise. No matter how poor the performance of the 208 radar is, it is still better than the old model of the British-produced Sky Guardian, which is read as a fire control radar and written as a radar rangefinder. Lu, if the J-7F can really achieve the performance you mentioned, I am willing to lead a team to inspect it again after its first flight. ?Latifs words cheered up Lu Yuying. For a device that is self-funded and developed without starting users, the biggest worry is that it cannot find customers and the money spent in the early stage is wasted. Although he is very confident in the performance of this improved model, military sales may not always be related to the product itself. As the chief designer who insists on launching a new model despite all objections, it is unrealistic to say that there is no pressure on him. And now the intentions of **** at least show that his original decision was correct. ?However, before Lu Yuying could respond, Latif changed the subject and continued: But you and I both know that as a light aircraft, the improvement potential of the J-7 is ultimately limited. In the long run, we still need a more advanced multi-purpose fighter that can conduct beyond visual range air combat. ?Lu Yuying was silent for a moment, and then asked tentatively: Are you planning to use the Mirage 2000 against your old rival? He has already recovered from what the other party said. Such an urgent move, with a special emphasis on beyond-visual-range air combat capabilities, is obviously targeted. Not just ?Latif was about to speak, but the crowd watching around the J-7MG had gradually dispersed, and the man who had just been standing on the boarding ladder also walked down. ?So he swallowed what he said, and then walked away pretending that nothing happened. ?But it doesnt matter, Lu Yuying has already obtained a considerable amount of information from the exchange just now. It is not just an intended modification order for the J-7F. It should also be of some help to the FC1 fighter project negotiations that have been wrangling for several years. But Latifs strange behavior just now made Lu Yuying a little concerned. So he found the person in charge of Factory 132 and arranged a test flight for the pilot named Sami. Although **** people obviously have little interest in this model, the process still needs to be followed. ??And more importantly, Lu Yuying wanted to take advantage of the opportunity to observe the test flight to talk to Latif. ?However, he did not succeed, and the latter''s attitude returned to the previous cold look. How is it, have you felt the opponents pulse? ?Yang Huimei walked up behind Lu Yuying and asked. I have some clues, but the opponents team leader behaves strangely ?Lu Yuying nodded, and then immediately shook his head: There are so many of them coming here from ****, it shouldnt be possible just to visit Factory 132. Have you arranged any other itineraries for aviation technology? Of course, the above meaning is to allow the Pakistani representatives to have an overall understanding of the current level of Chinas aviation industry. Yang Huimei said and took out a small book from her bag: So in addition to our 611 Institute and 132 Factory, we should also go to... uh, Fucheng Gas Turbine Research Institute, Hongdu 650 Institute, and the Liyang Factory in Zhucheng. Obviously she is not very familiar with these names. The schedule is so intensive? Lu Yuying was also stunned. ??He thought he would only arrange for the other party to visit the province at most. After all, due to the third-line construction, Sichuan Province is also a place with a relatively dense aviation industry. ?Yang Huimei sighed softly, rubbed her forehead that was swollen due to fatigue and explained: It is said that the negotiations between us and Pakistan on an aircraft model have reached a technical stalemate. The other party insists on using some foreign... uh, parts? Or something similar." Although she had spent some effort to improve her aviation knowledge before this trip, it was obviously not enough. We usually call it subsystem. Lu Yuying understood what she meant. After all, although he did not participate in the negotiations on the Super 7 project, as a person from the 611 Institute, he had heard about it. In fact, although the current negotiations are still based on the Super 7 framework, they are essentially a completely different project. "In short, although we are still not sure what they want this time, the superiors still decided to demonstrate our capabilities. Judging from other business negotiations I have conducted before, if the zero... subsystem is purchased from a third party, Then we can only make a small amount of money at most, and if there are some fluctuations in the exchange rate, we may not even be able to recover the money." "All right" ??Lu Yuying understands, but is not very adaptable to this kind of cooperation where there is not much candor between them. From another perspective, of course, this is what is fascinating about international relations. Forget its too far away, but Im going to follow you to Fucheng, where the Turbojet 13FII is about to enter ground testing. Of course thats no problem. Naturally, the next morning, Lu Yuying, who followed the Pakistani delegation to Fucheng 624 Institute, met Chang Haonan again. Originally, the first phase of the turbojet 14 test had been successfully completed. According to the plan, most people from the 606 Institute, including Chang Haonan and Yao Mengna, were supposed to leave Fucheng by plane early that morning and return to Shengjing to ensure 03 and 04 No. 1 prototype was replaced with a new engine and tested for flight. But after all, the Turbojet 14 is the first model to systematically complete high-altitude simulation tests here after the SB101 high-altitude platform was built. Many of the test subjects are conducted for the first time in China, and the whole process is extremely rare (for this time The smooth sailing for China Aviation Industry has really given the comrades working together in Fucheng a lot of experience. Therefore, Liu Zhenxiang came forward on behalf of the 624 Institute, hoping that Yan Zhongcheng and Chang Haonan could stay one more day to sort out their previous information related to test subject design and process arrangement for reference for the models to be tested later. Of course, it can also help Liu Zhenxiang himself, who is preparing to formulate ground simulation testing and evaluation standards for aero-engines, reduce some of his workload. ?So when the two met, Chang Haonan and Yao Mengna were assisting several Liyang factory engineers in modifying some process details in the control room. ??He heard a noise coming from outside the door. The moment he raised his head, he happened to see Lu Yuying walking in with the **** delegation. (End of this chapter) Chapter 120 Three-year window period Chapter 120 Three-year window period Comparing to Chang Haonan who recognized Lu Yuyings identity at once, the former even took a few seconds to confirm that the young man in front of him was the Jinghang undergraduate student who had met him once. Its not that Chang Haonans handsome face is unrecognizable. In fact, according to Lu Yuyings concept, the other partys research field should be related to aircraft aerodynamic design and should have nothing to do with the field of aviation power. You... still know about aircraft engines? Facing this simple question, Chang Haonan was a little unsure of how to answer it for a while. Well, I know a little bit One sentence attracted strange looks from several people nearby ?Good guy, you know a little bit, but what level are we at? ?However, these words must not be said, so several people turned their attention to the test plan on the table again. General Master Lu, you are here this time... ??Although he used a questioning tone, Chang Haonan looked at the group of foreigners walking in and basically made a guess. As long as it is not in the process of testing, the control room of the high-altitude platform itself is not a secret. Abroad, this is a place where many reporters can come in and take photos. ?Although the country is not so open, it is still no problem to bring some potential customers to visit. After all, SB101 is "Asia''s first", marking that China has the ability to completely independently develop and test aviation engines, which is definitely a long-term success. He just couldn''t tell which country those people were from. To Chang Haonan, everyone in that area seemed to be dressed similarly. Come here with a delegation from the Pakistan Air Force, you know, some... arms sales matters. Lu Yuying replied. You will bring it yourself? ??If Pakistan has the intention to purchase the J-7F, then it is normal for Lu Yuying, as the chief model engineer, to receive and introduce the model at the 611 Institute, but in any case there is no reason for him to be followed by a technician to Fucheng. No, no, no, the leader is a comrade from China Aviation Technology, over there. Lu Yuying pointed to another corner of the room: "My name is Yang Huimei." ?The name Chang Haonan was very familiar. He felt that he had heard it somewhere, but he couldn''t remember it for a while. ?This is also an area where a reborn person will occasionally be troubled. When faced with something that is impressive but not familiar, he first needs to figure out in which life he has come into contact with it. ?But now is not the time to dwell on such minutiae. Is Pakistan interested in your J-7F project? In the previous life, due to many reasons such as the slow progress of this project and the immature design of the mandibular air intake, a batch of J-7MGs were finally purchased for transition in the late 1990s. Now, thanks to his presence, things may have changed. Dont say that. Lu Yuying waved his hand: Your paper, as well as the data and methods provided, will contribute no less to this project than mine. Anyway, having intentional users is a good thing. ?Chang Haonan did not continue to dwell on the details. Strictly speaking, the original purpose of the Pakistani delegations visit this time was not to purchase a batch of improved J-7s. Then...are you here to discuss cooperation on Super 7? ?If Chang Haonan remembers correctly, the negotiations on the FC1/JF17 project did not make significant progress until the end of 1997, and the final agreement was signed in 1999. It seems like that, but in fact its certainly not the case. Lu Yuying shook his head again: "Their visit seemed aimless, and they fully accepted our arrangements, so neither I nor the aviation comrades were sure of the other party''s true intention of this visit." He then spent about ten minutes. , told Chang Haonan what happened when he met the Pakistani delegation for the first time yesterday at Factory 132. ?Especially the slightly strange behavior of Major General Latif. ??Although the latter is currently helping 601 with projects, everyone is part of the aviation industry, so there is nothing that cannot be said about these things. Well ?Chang Haonan touched his chin, lowered his head and fell into deep thought. He was very concerned about what Latif said to Lu Yuying. ??The so-called "a fighter with development potential no less than that of the Mirage 2000C and preferably close to the level of the F16C" would naturally refer to the Xiaolong if it develops normally. But there are some other details. There is no doubt that arms sales to Pakistan have always been an important part of Chinas military industry. But in fact, due to special historical reasons, Pakistans choice of military equipment, especially air force equipment, has been wavering for a long time. On the one hand, Pakistan has relied heavily on the support provided by the United States for a long time after its founding, which has led to the former forming the habit of using American system equipment. But on the other hand, as an arms supplier, the United States is not reliable. Since the second India-Pakistan War in 1965, Pakistan has often been subject to Western arms embargoes. Although the embargo is nominally aimed at both India and Pakistan, the Indian army does not rely on the West to provide equipment, so this is actually a naked deviation. ? So starting in the 1960s, Pakistan gradually introduced equipment made in China and France to offset risks. ?However, in terms of positioning, American-made equipment is still the main force, while other equipment can only be regarded as "spare tires." ?Until the end of the Cold War, Pakistan''s status plummeted due to the loss of the need to fight against the Soviet and Eastern blocs in Central Asia. In the early 1990s, the United States directly interrupted the delivery of a total of 71 F16 fighter jets in the second and third phases of the Peace Arch Plan, seized 28 that had been produced, and did not return the $685 million payment that Pakistan had already paid. ?This has made some forces in the Pakistani military that were already dissatisfied finally determined to get rid of their dependence on the United States. General Latif is obviously a member of this group. In fact, Shahid Latif is the person in charge of the Pakistani side of the future joint fighter development project between the two countries. But as a loose nation that is essentially a confederation of tribes, this idea is difficult to achieve consensus. ?Especially since the Sharif and Bhutto families can reap huge benefits from international aid, they are unlikely to be willing to do so. ? Whats even more troublesome is that Pakistans domestic intelligence agency, the Inter-Services Intelligence Agency, was entirely organized and trained by the CIA. They only obey the leadership of Islamabad in name only, but in fact they are part of the CIA intelligence network. ?Latifs strange behavior was probably also to avoid the informant from the Inter-Services Intelligence Agency in the delegation. In the original timeline, due to various reasons, Pakistan did not gradually get rid of Western control until the 2010s. However, there are still rampant separatist forces in the country that are interfering with its cooperation with Eastern powers. ?However, Chang Haonan knew that the situation was not irreversible. Two years later, in 1998, General Pervez would take the sword to Luo, drive out the two major families, and become the actual controller of Pakistan. ?As for the stance and tendencies of this legendary figure, it is enough to know that he is officially called "an old friend of the Chinese people." The three years from 1998 to the September 11 incident in 2001 was a short window of time for the development of relations between the two countries. Of course, China in the previous life failed to seize this opportunity due to national strength issues. As a result, after 2001, Pervez was pressured by the United States, which returned to the Middle East, and was forced to change the direction of its national policy. ?But now, the situation is different after all. (End of this chapter) Chapter 121 Bai Yueguang and (added 58 points to flankerr, the monthly ticket financier last month) Chapter 121 Bai Yueguang and... (Update 58 for last months monthly ticket financier flankerr) As a technician, Chang Haonan is not able to influence too many policy things at the moment. But its okay to go with the flow. Just exporting the J-7F is definitely not enough. After straightening out his thoughts, Chang Haonan said directly: Pakistan is now looking for us again, largely because the F16 fighter jets it purchased previously were impounded, causing problems with the update of its main air force equipment. Of course I know that. Lu Yuying replied with a normal face: So we are also negotiating on the FC1 project jointly developed by both parties. If nothing else happens, it may be produced on their side. No, thats not enough. Chang Haonan shook his head firmly: As a model jointly developed by the two countries, although the overall design of Xiaolong is almost completely completed by China, it is still inevitable to fight in all aspects from the demand end to the production end. Historically, the Xiaolong was not delivered to Pakistan for service until 2007. The gap of more than ten years was unacceptable for a country with heavy air defense pressure. But this is not a technical issue, so there is not much that Chang Haonan can do. Xiaowell, the FC1 may theoretically meet Pakistans needs, but in the final analysis it is still a light fighter of the same level as the Mirage 2000, and cannot compete with the F16 from a psychological and value perspective. "In addition, after all, they have owned F16 fighter jets, so no matter what kind of demand they put forward on the surface, they actually still want a product that can benchmark the F16 in various aspects, such as range and bomb load. There are also beyond-visual-range combat capabilities. Hearing this, Lu Yuying''s expression suddenly changed slightly, and then asked in a half-joking tone: Are you planning to steal business from us? A question silenced the atmosphere between the two for about ten seconds. I dont blame him for thinking this way. After all, whether it is the J-7F or the FC1, it is expected to be a light fighter with a medium-sized engine and a maximum take-off weight of about 10 tons. Compared with the F16, there are all-round gaps. ?So, does China currently have an export aircraft with stronger power, longer range, larger bomb load, and the ability to perform beyond visual range combat? In fact, there is. ??It is to replace the J-8B with Russian-made avionics and the J-8IIM that can launch R27 air-to-air missiles... Chang Haonan has been working for the 601 Institute in recent months. ?So in Lu Yuyings view, doesnt this connect? Nothats definitely not my intention. ?Chang Haonan put one hand on his forehead and shook his head. ?The conscience of heaven and earth, he is just summarizing what has not happened yet. In 1999, Pakistan lost the Kargil conflict around the Line of Actual Control in the disputed area. Its air force was suppressed almost entirely, and its ground forces also suffered heavy losses under attacks from precision-guided munitions. After entering the 21st century, the Indian army began to equip the heavy multi-purpose fighter Su-30MKI. ??If there is no intervention, then in 2001, in order to realize the strategy of returning to the Middle East, the United States will upgrade a batch of previously seized F16s and return them to the Pakistan Air Force, which is already imminent. Subsequently in 2006, the latter will continue to purchase a batch of 18 F16C/D fighters and some second-hand F16s from Middle Eastern countries, forming a total of about 80 aircraft. For a medium-sized country, the required air force equipment is ultimately limited. The F16 happened to occupy this ecological niche at the critical moment in the early 21st century and became a key bargaining chip that influenced the attitude of the Pakistani military, especially the air force. ? It was not until 2022 that the J-10CP, which could replace the F16, finally entered service with the Pakistan Air Force. But this time is a bit too late for both China and Pakistan. "After all, the J-8 is also a second-generation aircraft, and it specializes in high-altitude and high-speed interception missions. It will not be more attractive to Pakistan than the J-7F, and it cannot replace the F16." Chang Haonan carefully organized his words while explaining. : Just...for example, for them, F16 is like Bai Yueguang, whom they had a crush on for a long time but failed to pursue when they were young. Its a feeling they cant let go of after many years. So its useless to reason at this time. The best way is to provide an alternative to F16 and let them transfer their emotions to this new equipment. From this perspective, let alone the J-7 and J-8, even if the Russians sell them the Su-27, it will be too different from the characteristics of the F16. After hearing these words, Lu Yuying''s eyes changed. This must be someone with a story ?Yao Mengna, who was standing nearby and was just eating melon, turned her head and looked at Chang Haonan with sharp pupils. This person talks about these things with great clarity, but why does he usually behave like a piece of wood? ?However, although the metaphor is strange, Chang Haonans meaning is not difficult to understand. What are the typical characteristics of F16? Single-engine, single-seat, medium-sized, belly-intake, multi-purpose ?Isnt it a coincidence? 611 Institute actually has one, or there will be a model that is almost compatible with them soon. You mean... ?Lu Yuying made a "ten" sign in front of Chang Haonan with the index fingers of both hands. The latter nodded. The overall performance of the J-10 is definitely not weaker than that of the F16C/D. Even though it is the main equipment of the Air Force, it is impossible to sell the same model immediately after entering service, but even if it is slightly downgraded in avionics, it can definitely crush the early F16A/B currently equipped by the Pakistan Air Force. You must know that the AN/APG60 radar equipped by the latter does not have continuous wave irradiation capabilities and cannot even use radar-guided air-to-air missiles. It can only use AIM9 for within-line-of-sight combat. At worst, it will come with a mid-term repair and upgrade service later. ? Judging from the current trend, Chang Haonan is very confident that he can raise China''s scientific and technological strength, especially its aviation technical strength, to a higher level in a few years. At that time, there will be no need to be secretive about the technical status of the first version of the J-10. ?Thinking of this, Chang Haonan continued to add: "This model is the absolute main force for Pakistan. The number of equipment cannot be large. There is no need to worry about affecting future FC1 sales. Moreover, it is only arms sales and does not involve technology transfer, but it can greatly affect Pakistan''s decision-making balance. Its a sure-fire deal. ?Lu Yuying was convinced by Chang Haonan without much hesitation. ?In addition to the fact that the latter idea does make sense, the profits from exporting third-generation medium-sized fighter jets are far beyond those of the J-7 or FC1. ?Of course, the decision-making power on this matter does not lie with the two of them, nor even with China Aviation Industry Group. But as a senior designer of the 611 Institute, Lu Yuying can definitely make some preparations in advance. ?For example, during the research and development process, a version using the 1471G radar can be developed simultaneously, or a large number of legal ammunition in the Pakistan Air Force''s inventory can be adapted and optimized. After all, its all about human effort. (End of this chapter) Chapter 122 Are you free tonight? Chapter 122 Are you free tonight? The meeting with the foreign delegation can only be regarded as an episode. For Chang Haonan, the most important thing right now is to continue to follow up on the 83rd Project. From the previous aero-engine stability evaluation standards, it can be seen that with his open-minded attitude and future perspective, the safest route is to gradually increase his influence through the development of technology. ??If it were not for the excellent performance of the turbojet 14 after improvement, it would not be so easy for the Science and Technology Commission to make up its mind on establishing an independent aviation industry system. In the following days, the August 3rd Project project team maintained three-front operations at the same time. ?Some people stayed in Fucheng to continue the second-stage full-life test and other test subjects. By the way, they assisted Liu Zhenxiang in supplementing and revising the aviation engine ground simulation test standards. Another group of people are in Shengjing, responsible for adapting the two turbojet 14 prototypes newly produced by the 410 Factory to the No. 03 prototype of the J-8-3. Shortly after the surge accident, the No. 03 prototype Transition back to Shengjing, ready to replace the new power before continuing the test flight. The workload of this task is much greater than expected. The weight of the two new engines is more than 200 kilograms lighter than before. In order to balance the weight, the 601 Institute had to make minor modifications to the fuel tank distribution of several prototype aircraft. Therefore, until Chang Haonan and Yan Chengzhong returned to Shengjing from Fucheng, the flight engine matching work of the No. 03 prototype was not completely completed. At the same time, on the day that the 624 Institute completed the first phase of ground simulation testing, another turbojet 14 prototype that had already been sent to Yan Liang was hung on the No. 086 aerial test platform of the Flight Test Institute, and the first test was carried out. Aerial platform testing. Compared with the high-altitude platform, this aerial platform modified from Figure 16 can simulate some more realistic working conditions and is an essential process in the high-altitude test of aeroengines. Although the 606 Institute is already full of confidence in the improved turbojet 14, it still needs to wait until the test flight of other aircraft is completed before the assembly test can be officially started on the No. 03 prototype. ?So before that, Chang Haonan''s work became a lot easier. He only had to take time to go to the assembly workshop and follow up on the completion of the two full-state prototypes 04 and 05. ?This is exactly what he wants. Even though he had already visited Factory 112 once when the No. 04 prototype made its second first flight, he had never taken a closer look inside the workshop like he did when he went to Factory 410. After returning to Institute 601, Chang Haonan decided to rest for a night. Although he lived in a guest house for two people in Fucheng, the conditions were pretty good in this era, but unfortunately, he met a roommate who snored heavily, and the work was very intensive, so he had to work hard during this period. Suffering from mild sleep deprivation. Now that I have finally returned to my single dormitory, I have to make up for my sleep no matter what. ?However, Yao Mengna, who was traveling with her, was in high spirits. Junior brother, are you free tonight? Before they parted ways at the stairs, she called out to Chang Haonan who was about to take out the key and open the door. "night" ?Chang Haonan hesitated for a moment. There are no plans for the itinerary, but I dont really want to go out. Although he worked very hard, according to the custom of later generations, he was essentially a homebody. Although it cannot be called social fear by any means, if possible, people generally prefer to stay at home. ?However, this moment of hesitation changed its meaning in Yao Mengnas eyes ?Her original intention was to ask Chang Haonan if he wanted to go out for a meal together. When she was in Fucheng, she lived with a married female engineer, who introduced her to many places near 601 that were suitable for two people to eat. ?But just after blurting out that question, Yao Mengna almost immediately realized that she had said something sarcastic. What does "Are you free in the evening" mean? This sentence can obviously have many meanings depending on different understandings. As a girl with both business intelligence and always online, Yao Mengna always pays attention to her speech and behavior. ??It''s just that when facing Chang Haonan, his originally bright mind often slows down a beat. This symptom has probably become more and more obvious since the incident with the senior student... Its so unseemly Yao Mengna was upset. How can you say such outrageous things? ? And now it is impossible for her to explain it, as that would only make it darker and darker. I can only pray that my junior brother, as a qualified piece of wood, will not think too deeply... The best outcome is for the other party to tell you directly what she wants to do. This explanation makes it less obvious that there is no three hundred taels of silver here. However, she was afraid of what would happen. She saw Chang Haonan who was silent, lowered his head in contemplation, and looked like he was in a dilemma. In fact, the question just now would not cause any ambiguity at all under normal circumstances. Unless someone has some evil thoughts. ?So the latter actually didnt think too much, he was just worrying about the time he planned to use to catch up on sleep. But Yao Mengna next to her was already feeling guilty, and seeing this scene made her whole body numb. Then she heard her junior brothers answer: Ive been too busy during this period, so Im going to take a rest alone at night. ?Mainly due to the fatigue after the sudden relaxation, Chang Haonan was already a little over the top, so much so that he opened the door and walked into his dormitory without even thinking of asking the other party''s purpose. No, I... ?Yao Mengna, who stayed in the corridor, looked at the door that was slammed shut in front of her, her mind already turning into a ball of mush. A person rests alone...why does he emphasize a person? Has he ever wanted to go somewhere else? He doesnt think Im a casual woman And he seemed to have rejected me? "This is different from the plot my best friend told me before..." ?She didn''t even know when she opened the door. Anyway, by the time she realized it, she was already lying on the bed. ?The last time I felt so embarrassed was the last time. "well" ?Yao Mengna wished she could have slapped herself five minutes ago. She looked at the palm that had been raised in the air, and finally slapped it **** a stuffed bear beside the pillow. On the other side, Chang Haonan quickly changed into pajamas after returning to the dormitory and threw his entire body on the bed. I seemed to have forgotten to ask my senior sister what she wanted to do with me at night In a daze, he also vaguely felt that something was wrong. Forget it...no matter, I have to go to Factory 112 tomorrow morning to check on the final assembly situation. Then Ill ask my senior sister to go with me. She should be familiar with it..." (End of this chapter) Chapter 123 The J-11 settled in advance Chapter 123 The J-11 settled in advance Early the next morning, Chang Haonan, who had regained his energy, met Yao Mengna again in the cafeteria. Its just that when he was about to use his chopsticks, the other person had already eaten half of the meal. Senior sister, I... ?However, before he could say the invitation to go to Factory 112 together, Yao Mengna interrupted him quickly without even raising her head: Um...junior brother, I have something else to do, please eat slowly. ?Then he took the dinner plate and ran away decisively. Sometimes, although escaping is shameful, it is useful. ?For example, Chang Haonan didn''t see Yao Mengna''s already red face that was about to bubble. "Well" He looked at the plate in front of him and thought about it. In fact, only what happened yesterday was unusual. Just because I didnt ask her what she wanted to do? ?Chang Haonan took a bite of the fried dough sticks and was a little confused. Senior sister doesnt seem to be such a narrow-minded person In this era when there is no mobile network and most people do not even have mobile phones, it is still difficult to accurately contact a person who is neither at home nor at a fixed place of work. So in the end, Chang Haonan did not do any useless work, but directly contacted He Ming, the deputy chief engineer in charge of the final assembly of the 83rd Project at Factory 112. ??Although according to the permissions indicated on the former work permit, you can basically walk sideways in several factories in Shengjing, but for a unit of the size of Factory 112, if there is no one to carry it, you are likely to get lost inside... Chang Haonan took a car directly from the airport to the test runway last time, so he was still relatively unfamiliar with the overall situation of the factory area. But even so, he could see that Factory 112 was making some big move. ?The factory area is almost full of various transportation vehicles, and several large workshops look like they have been renovated. ?Furthermore, the security level within the entire factory has also improved to a higher level than before. Although it is not as simple as three steps to one post and five steps to one post, Chang Haonans work permit was checked three times just as he walked from the door to the administrative office building of the factory. Comrade Xiao Chang, long time no see. ?He Ming seems to have been waiting at the door of the building for some time: "The commotion you have created in Fucheng is not small. Even those of us engaged in complete aircraft production have received warnings from above, saying that we must build an independent aviation industry system based on our own realities. " I havent heard such an encouraging statement in more than ten years. ??Although He Ming does not look too old due to his thick hair, he has actually worked at Factory 112 for more than 30 years, and even participated in the domestic manufacturing of the J-6A aircraft. I think the Science and Technology Commission should have had such a plan for a long time. The things Academician Liu and the others came up with dont look like they were unprepared. Chang Haonan replied: The turbojet 14 successfully completed the test according to our own standards, which gives the superiors enough confidence to move forward with this matter. Even though Director Ding quoted exactly what he said on the phone during the meeting, But if you think about it carefully, Chang Haonan does not feel that he can have an impact on this fundamental policy direction with just one word. Because this kind of thing is not something that can only be decided upon by the Science and Technology and Industry Committee. Confidence is good... What we have been lacking the most in these years is confidence. He Ming raised his head, his tone full of emotion: You are still young and have not experienced many things. Sometimes, those who stand in our way are our own people. "When you encounter a slight problem, you should use the theory that it is better to buy than to build, and it is better to rent than to buy. At this time, it is very important to have this booster given by you." ?Chang Haonan looked at He Ming next to him, whose mood was fluctuating, and felt that it was time to change the topic: "By the way, let''s not talk about the turbojet 14. When I first came here, I saw something big happening in the factory?" "You don''t know?" He Ming was stunned when he heard this question, and then thought of something: Oh, yes, you have been in Fucheng during this period, so you may not have heard of it. At the beginning of this month, we formally signed an agreement with Russia to transfer the Su-27 production license, so a large amount of technical data and production equipment will be shipped here. Chang Haonan was also surprised when he heard this answer: Su 27...have the talks been concluded? ?If he remembered correctly, the agreement was originally two months later and was not officially signed until December 1996. Yes, Sukhoi suddenly made a huge concession, so the negotiation process went a lot smoother. When He Ming said this, his tone suddenly brought a smile: And speaking of it, this matter still has something to do with you. "How come... I don''t know this myself?" Chang Haonan felt as if he was suddenly out of touch with the world. When the No. 04 prototype flew for the first time, Commander Yang specially asked several Sukhoi technical consultants from Factory 112 to watch the whole process. Then within a few days, I heard that the agreement there was successfully signed. " At the end of the day, contract negotiations are useless if you dont have any cards in your hand. The improved J-8-3, even if it is not a king bomb, is at least four 2-level fighters. Whats more, it was created out of nothing when the card game was nearing the end. The effect is naturally immediate. Unfortunately, I came a little late and only got two months... ?Chang Haonan nodded, but he still felt a little regretful. ??If Project No. 10 is the beginning of Chinas realization of freedom of fighter jet design, then Project No. 11 is the starting point of Chinas realization of freedom of fighter jet manufacturing. A heavy fighter with a maximum takeoff weight of 33 tons. Even if a full set of design information and raw materials are prepared, it is still a huge challenge to actually build the aircraft. There are not many shortcuts in manufacturing, and time and investment are both indispensable, so if we only start two months in advance, the actual impact may be... etc At this time, Chang Haonan suddenly remembered that He Ming seemed to have said just now that Russia had also made concessions on the content of the agreement, so he asked again: As for the content of the contract... As Chang Haonans status in Institute 601 has risen, he naturally has the right to know about these things. ??If he had asked this question when he first arrived in Shengjing, he would probably only get a blank look. "According to the contract, Factory 112 will produce a total of 118 single-seat Su-27SK and two-seat Su-27UBK in the next 10 years. The first batch of 14 airframes will all be provided by Russia. Subsequently, we will gradually transition to completely manufacturing them ourselves. " "The engines, radars and electronic equipment required by the aircraft are subject to separate subsystem procurement contracts. Except for the first two batches of 28 aircraft, Russia does not restrict us from replacing the airborne equipment of the other 90 aircraft and can provide necessary assistance. Of course the cost is extra. In addition, the Su-27 and its derivatives we produce cannot be exported to third countries. The specific contract content is of course much more complicated, so He Ming only selected the most critical parts. ??But this was enough to make Chang Haonan almost drop his jaw. Compared with the rather harsh conditions on the original timeline, the content of this agreement can now be called a philanthropist. It is no longer important that there is an additional Su-27UBK production line and the reduction in the number of airframes that must be provided by Russia. The latter item without restrictions on the replacement of airborne equipment on 90 of the aircraft is the full operating space. This means that Project 11 can even embark on the path of "production and improvement" from the beginning, without having to delay it for nearly 10 years like in the previous life. (End of this chapter) Chapter 124 The best Su 27 is in China (added 58 for monthly ticket financier flankerr) Chapter 124 The best Su 27 is in China (update 58 for monthly ticket financier flankerr) Chang Haonan raised his hand and stroked his hair, which was already a bit long because he hadn''t cut it for more than two months, and sighed: I fuck ??Although Chang Haonans mother, Ms. Zhou Li, is a Chinese teacher, his Chinese scores have always been at a relatively poor level, and the system does not seem to have the ability to increase literary literacy. In short, he could not think of any more accurate words to express his feelings at this time. ?But I am uneducated, so I can get around the world with just one word. ?After a long time, Chang Haonan finally asked again: "Such a good condition... Old Maozi won''t do anything else, right?" Its not that he is narrow-minded, its actually the content of the agreement mentioned by He Ming that made him feel unreal. ? Just like if someone introduces an investment method that can earn 50% annualized income without losing the principal, then anyone in their right mind would have to think about whether they need to install a national anti-fraud APP... ?Before Chang Haonan was reborn, some colleagues were actually deceived by this trick. The money was never recovered in the end. It is true that Russia does not have much dark history in its cooperation with China. But if the cooperative Party B is switched to India, the situation seems to be different... The experience of buying an aircraft carrier for 1 yuan and then spending nearly 2 billion US dollars to refit it is still vivid in my mind. This question made He Ming think seriously for a while, but in the end he shook his head: "Probably not. On the one hand, the agreed payment method is based on the project node. The smoother our progress, the faster they can get the money." "On the other hand... the comrade in charge of the negotiations said that even with the current conditions, the other party was more anxious than us when the agreement was finally signed, so it was not a big problem." Of course, the core is still our 112 Factory. Although there is a technical gap with Komsomolsk City, it is not a blind eye. Even if they are really playing some tricks, at least they can see it. Thats right. Hearing He Mings answer, Chang Haonan also chuckled: When the production of the first 28 aircraft is completed, there will not be many things that require Russian guidance. Just to open up the production line, we shouldnt need 28 aircraft. According to my experience, 16 to 20 aircraft are enough. He Ming judged as he led Chang Haonan down the steps: "The focus is still on the 90 aircraft at the back. The foundation of the Su-27 aircraft is very good, but the airborne equipment is a bit behind. If it can be improved on the basis of the original model, it can further exert its combat effectiveness, but this requires you to work on the overall design. people are worried. Although the business of Factory 112 is aircraft manufacturing, and He Ming is the engineer in charge of final assembly, as an old aviation veteran from the 1960s, he has some understanding of the entire industry. After all, Chinas first aircraft design office was established in Factory 112. His ideas coincided with Chang Haonan''s. As a large country with a combined land and ocean area of ??more than 12 million square kilometers, China undoubtedly needs a heavy-duty air superiority fighter with excellent range and maneuverability. ??If the Chinese Air Force wants to complete the gorgeous transformation from a homeland defense type to a both offensive and defensive type, it also needs a multi-purpose air platform with sufficient power and bomb load. Su 27 can undoubtedly satisfy both requirements. Its just that parts other than the platform itself can be replaced with Chinas own stuff. ? Among other things, the nearly one-ton N001 radar must be replaced first, and the Soviet watch shop must also be converted into a glass cockpit. In fact, even Lao Maozi himself cant stand these two artifacts on the Su-27. If the disintegration of the alliance had not led to the cessation of research and development, the Su-27SM using flat-panel slot antennas and digital telex should have almost entered service. ?Thinking of this, Chang Haonan felt that he needed to arrange the plans after the August 3rd Project. Project No. 10 and Project 11 actually left a lot of regrets in the previous life.?????So if possible, his idea is "I want them all". ?But this requires him to be a master of time management, otherwise if he cannot take care of both the left and right, the effect will be even worse. I wonder how our factory sets the timetable for opening up the four-stage production line? Aircraft manufacturing is a job that is no less complex than aircraft design. The transition from fully imported to fully domestically produced aircraft, or any complex mechanical product, actually involves three to four different stages. The first step is to assemble the aircraft with large parts imported from the original factory and open up the "complete aircraft assembly line". ?Assembling aircraft may seem low-tech, but in fact there are not many countries that can take this step. The second one is the assembly of large parts from imported medium-sized parts, and the assembly of imported low-piece parts into assemblies. Depending on the complexity of the aircraft, this may be one or two steps. For most countries, reaching this point is basically the end. The so-called "self-developed" aircraft in many countries can only go so far. The last step is to produce low-parts parts from rough materials, open up the parts production line, and then produce the entire aircraft step by step to achieve complete localization of the aircraft. This He Ming thought for a while: The original agreement stipulated that the final assembly of 2-4 aircraft should be completed by the end of next year, and the entire production line of the airframe section should be completed by the end of 1999. But thanks to your contribution, now there is another node, which is to complete the replacement of the entire aircraft production with domestic standards before the end of 2001, and completely turn the Su-27 into something that meets the standards of the Chinese aviation industry! Of course, in addition to the aircraft itself, another task is the localization of ground support equipment. Otherwise, with the third-generation aircraft alone, the corresponding service capabilities cannot keep up, and there is no way to form combat effectiveness. Well Chang Haonan thought about it in his mind: The progress requirements are not tight, so it should still be in time... Whats too late? ?He Ming''s tone was a little curious. Of course its aircraft improvements. Chang Haonan shrugged: After the final assembly line is opened, the digestion and absorption of parts production can be carried out at the same time as technological improvements. As for airborne equipment, especially electronic equipment, it can be independently researched. Its just that if you do this, your factory will be under greater pressure, especially in terms of cooperation with Russian technical personnel. He Ming, who was next to him, turned his head and glanced at him, and answered after a few seconds: If I hadnt known what you had been doing in the past three months, I would have thought the person who came up with this idea was crazy "But...improving while producing is indeed a way. I will mention this idea to the factory after I go back and try my best to cooperate with your work. As for the Russian technicians...there is always a way, and the improvement work must be led by me. " Im afraid that by the time these 118 aircraft are built to the end, even their own people wont be able to recognize them Hearing these words, Chang Haonan couldn''t help but think of the situation before his rebirth, and it was really in line with He Ming''s expectations. I think it should be like this From now on, the best Su-27 will definitely be born in China. It should be Chapter 6 of the monthly ticket financiers update (End of this chapter) Chapter 125 If you want to engage in military industry, you can’t just engage in military industry Chapter 125 If you want to engage in military industry, you cant just engage in military industry ?After just chatting with He Ming about the localization of the Su-27, now looking at the final assembly of the Project 83 prototype, Chang Haonan inevitably felt a bit boring. Sorry, J-8-3, I already like J-11 now... Heh, man. Of course, the work that needs to be done still needs to be done. Whats more, this can also lay a solid foundation for his next work. With the two long-standing problems of wing design and aviation power that have plagued the 83rd Project being solved, there are not many opportunities for Chang Haonan to continue to shine in this project. After a series of test flights, the technology should be finalized soon, followed by batch 00 production and test equipment, and then production finalization... In short, it is mainly just some step-by-step work. If nothing else happens, starting next year, he will gradually shift his work focus to two third-generation aircraft models. The current level of China''s aviation manufacturing industry is that it is not a big problem to cope with the second-generation combination of J-8 and turbojet 14. However, there is still a long way to go to completely solve the production problems of third-generation fighter jets and even third-generation aviation power. way to go. Therefore, Chang Haonan will not only continue to work with several design institutes in the future, but also inevitably deal with several corresponding manufacturing plants. Its also a good thing to get familiar with things in advance. In the large assembly shop, there are two J-8Bs that have not yet been delivered to the Air Force, and three J-8-3 prototypes that are in different stages of equipment. ? No. 03 has completed the modification, No. 04 is waiting for the new engine to arrive, and No. 05 is about 50% complete in its final assembly. "Currently, the final assembly of several prototypes of the 83 Project is still based on the manual assembly mode based on frame positioning, but the parts production process has begun to be connected with the digital design team of the 601 Institute, which has reduced some of the time from drawing to production. " ??He Ming led Chang Haonan to a platform on the second floor while introducing: "In the past few months, Dr. Yao, who came with you, and Engineer Lin from the 601 Institute have been coordinating the digital design and final assembly process with our factory. When we enter the mass production stage, we should introduce New technologies such as automatic docking and digital measurement have improved production efficiency. "However, the main problem now is production. The orders given to us are too few. On average, we cannot produce one new aircraft per month. Even if we use manual assembly, more than half of the production capacity will be idle. It does not reflect the potential of digital final assembly at all. Advantage comes. The workshop was empty, and you could hear some echoes when you spoke, as if to confirm He Ming''s complaints about the lack of orders. In fact, the lack of orders affects not only the efficiency of the factory, but also the quality of production. Speaking of this, He Ming''s eyes also darkened: Especially if we are about to switch to a new production method. If we dont have enough production volume to get familiar with it, Im worried that not only will it not achieve good results, but it will also trigger some resistance. In the real world, improving manufacturing technology is not like in the game, where you get a buff directly after you light up the technology. Especially for highly complex industries such as aerospace, the process of upgrading from handicraft industry to industry is very tortuous. ?In the transitional stage of transformation, it is very likely that not only will the scale advantage of industrialization not be brought into play, but the ability to craft products in the handicraft era will also be lost, resulting in a decline in production capacity and a decline in product quality. ?At this time, you need to withstand the pressure, quickly accumulate experience on the basis of optimizing the management model, and get through the pain period in the shortest possible time. There is obviously a huge difference in the accumulation of experience between building 10 aircraft in a year and building 10 aircraft in a month. How else can we say that production relations should correspond to the development of productive forces. "well" Chang Haonan also sighed helplessly: "Take your time, this matter cannot be solved by you and me in a short time, and compared with other old state-owned enterprises, the situation of Factory 112 is not bad. Aircraft manufacturing is a special industry after all, and even in the most difficult times, orders have never been cut off. ??Furthermore, although China''s aircraft manufacturing capabilities are lagging behind those of developed countries, compared with other industries, they are still low in dimensionality reduction. The products produced by the military-to-civilian conversion, such as aviation brand washing machines and Shenyang Fei brand buses, are also selling well. With the efforts of both parties, the basic operation of the entire factory was barely maintained, at least there was no large-scale layoffs. But thats about it. As for how moist it is, it doesnt exist. Thats what I say, but... He Ming raised his head slightly and looked at the mottled roof of the workshop and the red flag of the "Youth Commando" hanging on the wall next to it: "Back then, many workers were assigned to the Songling Machinery Factory to produce refrigerators, washing machines, and motorcycles. At that time, I told them that sooner or later they would be called back to continue building aircraft. But now more than ten years have passed... " He did not continue. But it is obvious that a considerable number of those old workers may not be able to return to Factory 112 until they retire. Chang Haonan next to him could only remain silent. ? In his last life, he officially entered the military industry in 2003. Although he was still at a low ebb, at least he had passed through the real darkest moment. He could understand He Ming''s feelings, but for something that he had never personally experienced in his entire life, it was still a little short of empathy. More of a little emotion. The military industry is, after all, an industry with an extremely limited market and requires massive blood transfusions to survive. Even the United States, as the world''s largest arms dealer, will only export 50 to 60 billion U.S. dollars in arms exports per year by the 2020s, with the bulk of it still being purchased by its own military. Traditionally speaking, from the industrial revolution to the early and middle periods of the Cold War, the military industry was undoubtedly in the leading position in the development of science and technology. However, with the continuous development and advancement of science and technology, the complexity of engineering technology is also increasing, and the funds, manpower and organizational capabilities required to achieve technological breakthroughs in a field have skyrocketed. ?However, annual military investment is limited after all, and it is difficult to maintain such a huge comprehensive investment based on the scale of the military industry alone. ?Hence, the cornerstone of the entire science and technology field has gradually become more and more civilian-oriented, especially represented by emerging industries such as aviation, semiconductors, and information technology. ?For example, in later generations, the United States lost almost all of its civilian shipbuilding industry. Even though it still maintained huge investments every year, its ability and level of building warships still experienced a collapse-like decline. Chang Haonan suddenly remembered the business of designing axial flow fans that Wu Yifan had contacted him before. ?Although the matter is small, it is a good direction. The path of military-civilian industrial integration will eventually be pursued in the future. ? Its just that it is no longer about diverting the production capacity of military factories to produce civilian products to compete with others for business, but about promoting the mutual integration of technologies in the military and civilian fields. ??If you want to engage in military industry, you can''t just engage in military industry. Thanks to book friend [flankerr] for the 30,000 starting coin reward! (End of this chapter) Chapter 126 next step Chapter 126 Next Plan Chang Haonan did not stay in Factory 112 for too long. After all, there were only 5 aircraft parked in the entire assembly workshop, and the parts production line was not in operation. There was not much that could be seen. Back at No. 601, he happened to meet Yang Fenghao while having dinner. Did you go to Factory 112 today? The latter glanced at the work badge hanging around Chang Haonan''s neck and roughly guessed his schedule today. This is generally not needed inside a 601 institution. Yes, lets take a look at the final assembly of the three prototypes. Chang Haonan put down the spoon in his hand and nodded. Just looked at the three prototypes? Yang Fenghao took a sip of soup and showed a smiling expression: Didnt you see anything else? UhFactory 112 is receiving materials and equipment related to Project 11, so I justdropped in to take a look. After Chang Haonan said this, he inexplicably remembered what He Ming had said before, that two Sukhoi engineers were specially allowed to "peep" during the test flight of the No. 04 prototype, which finally prompted Russia to make huge concessions. . How come it feels...a bit similar? In an instant, he realized. This has been arranged for me! And it is clearly arranged. After returning from Fucheng, I immediately received an itinerary to Factory 112. After arriving at Factory 112, I "happened" to see preparations for the localization of Su-27 being in full swing, including what He Ming had talked about with himself about the J-11. Outlook for subsequent improvements Is this also part of your plan, Mr. Yang? ?So according to the routine, the following should be... Xiao Chang. ??Yang Fenghata spoke just right: "In the past few months, you have made outstanding contributions to the August 3rd Project. It can be said that without you, the progress of this project would have been delayed for a long time. After the design and finalization work is completed, I am ready to In the name of this, apply for a commendation or award for yourself. Chang Haonan was also surprised when he heard this. ?This is not exactly the same as the advanced technological achievements reported to him by 603. Honors are regarded as recognition of achievements. But its not just recognition of results. The relationship is quite subtle, but in short it will be quite helpful for his future development. ?Especially when the other party said that the application must be made in the name of the institute, it must be at least at the level of the Aviation Industry Corporation of China or the Commission of Science, Technology and Industry for National Defense. As a person who spent twenty years in the aviation industry system as a screw in his previous life, Chang Haonan is not very good at dealing with people. But he is not stupid. ?It doesnt matter if you dont speak well, the key is not to make the wrong direction If you dare to say "I don''t think I am worthy of such an honor yet," then your superiors will dare to actually give the award to someone else. It should be your own thing, there is nothing to be embarrassed about. At this time, what is needed is not humility, but a statement. Thank you, Mr. Yang, for your recognition of my work. I will definitely... Before Chang Haonan could finish the long paragraph he had organized in his mind, Yang Fenghao waved his hand to stop him from continuing: Okay, okay, your style of speech is similar to the way I used it when I first started working. The former shut up decisively. As long as the meaning is in place. "You also know the importance of the August 3rd Project. Commendation is indispensable to you no matter what, but the weight of honor... To be honest, sometimes it depends on luck." Speaking of this, Yang Fenghao suddenly changed the subject: I wonder, Xiao Chang, what are your plans after the project at 601 Institute is over? Obviously, here comes the real point. The previous set of combo punches were all paving the way for this problem. First, I asked you to see the third-generation heavy fighter that is about to be domestically produced. Then I clearly arranged the honor for you. Finally, I asked you what your next step is. I just have the words "I want to win you over" written on my face. The method is old-fashioned, but it works. Very useful, at least in general situations. Whats the next step ?Chang Haonan pondered for a while. He was not worrying about whether his choice would affect his honor level, but he was really thinking about it. For the Chinese Air Force, Project 83 can only solve the urgent needs of the moment. If we want to face the air defense pressure in the new century, we still have to focus on the third-generation fighter jets. "So, I will definitely participate in Project No. 11. During the day, He Gong told me the content of the Russian agreement, which is very beneficial to us, especially since we can replace the airborne equipment of 90 of the aircraft, and the operating space is very large. big." ?Hearing this, Yang Fenghao''s brows finally relaxed. At the beginning, he agreed to let Chang Haonan and Yao Mengna join the 83rd Project, more or less for the sake of Du Yishan and Liang Zhuoping, and his expectation for the two people was just to "help a little bit." ?But soon, he realized that his psychological expectations were terribly wrong. First discovered the aileron reversal problem, and then redesigned a set of leading edge slats to improve the aircraft''s low-speed performance. Finally, it even solved the compressor design flaw that had plagued the Turbojet 14 for several years... More importantly, Chang Haonan is not only extremely capable in his own work, he can even drive the efficiency of the entire August 3rd Project team. This is very rare for a young man in his early twenties. Simply a treasure boy. Therefore, when Yang Fenghao learned that the ground simulation test of the Turbojet 14 went well, and even asked the Science and Technology Commission to develop an independent aviation industry standard, he decided to let Chang Haonan do it at all costs. Stay after the engineering design is finalized. As for Yao Mengna Even with a piece of wood, it can be seen that she has some thoughts about Chang Haonan that go beyond friendship. So as long as we can keep the latter. However, just when Yang Fenghao felt that he was sure of victory, Chang Haonan continued: However, after having the experience of participating in the August 3rd Project during this period, I hope that I can jump out of specific projects and solve some methodological problems that are in short supply in our aviation field. Look beyond specific projects? ??Yang Fenghata felt that his heart might not be able to bear such ups and downs. Yes, I want to try to solve some universal problems related to third-generation fighter jets, such as flight-propulsion integrated control in the field of flight-engine matching, flight control digital design, surge monitoring, etc. ?Chang Haonan frankly expressed his thoughts: Of course, these technologies will eventually be implemented on specific models, so I have to trouble you to leave a place for me in Project 11. Huh Yang Fenghao breathed a long sigh of relief. Of course, although I am not in charge of Project No. 11, I can still make a decision on this request. (End of this chapter) Chapter 127 Why did I suddenly have more papers published? (2-in-1) Chapter 127 Why do I suddenly have more papers published? (2-in-1) Because of the tug just now, when Chang Haonan said goodbye to Yang Fenghao and left the canteen, he could already see a crescent moon hanging in the sky. On the way back to the dormitory, he suddenly thought of Yao Mengna who was acting a little strange this morning. By the way, what did she want to say last night Just when Chang Haonan was hesitating to ask the other party specifically, another familiar voice came from the side. Permanent worker! This is the familiar plot again. Even the person who walked out of the security booth was the same young man from last time. Chang Gong, your letter. Is it mine again? ?Chang Haonan took the envelope and took a look at it through the dim street light at the door. Its still the same envelope as the last time. ??Although I cant see the words clearly, its obviously from Xu Yang. She probably has some new ideas about differential evolution or Kalman filtering algorithms. Sorry to trouble you. ?Chang Haonan nodded to the security comrade to express his gratitude, and then went upstairs back to his residence. ?While taking out the key to open the door, he heard the sound of the lock cylinder turning behind him. Looking back subconsciously, it was Yao Mengna. ?She was standing at the door now, holding an aluminum electric kettle in her hand. ??Although it can be plugged in to boil water, the electricity bill is very expensive. Secondly, the power of this thing is as high as 1500-2000W, which is a huge electricity burden for this old dormitory building, and may cause the fuse to burn. So when there is water in the boiling water room, most people will still turn on the water directly. ??The unexpected stare lasted for about half a second, and finally ended with the latter''s cheeks turning red and running away. Why does she feel like...shes avoiding me? ?Chang Haonan touched his nose in confusion. ?However, he thinks he has one advantage, that is, he is quite self-aware in terms of emotional intelligence, so he never guesses other people''s thoughts - It is better not to guess if you are too smart and guess wrong. So just go into the house, close the door, and lock it in one go. Then he took the letter and sat in front of the desk in the bedroom again. Open the envelope. As expected, it was another pile of letter paper, but it was divided into two parts. One of the thicker ones is even in English. And its printed. Chang Haonan took a deep breath when he saw this scene. Looks like I have to make another cup of tea He stood up again, picked up the water glass and tea leaves next to him, and thought rather helplessly: If you do this a few more times, Im afraid a conditioned reflex will form. Since moving into this dormitory, Chang Haonan has only taken out this bag of tea twice. Its all because I want to read Xu Yangs letter. When he came to the living room and saw the thermos bottle, he remembered that the half-filled bottle of water in it was from before he went to Fucheng, and it had already been cold. I had no choice but to put the things in my hands aside, pick up the thermos and go out to fetch water. There are only two boiling water rooms on each floor of the tube-shaped dormitory, which are located at the two corners of the U-shaped building. Chang Haonans dormitory is located in a U-shaped section. ?So it was not unexpected to meet Yao Mengna again on the road who was returning from fetching water. "that" After the two passed by, the latter''s voice came from behind him: "There is no water in the boiling water room. Let me give you some." The volume of a kettle is roughly equivalent to two thermos bottles and a little more. Ohthen thank you, senior sister Chang Haonan said as he put the thermos bottle on the ground, and then took the kettle from the other party''s hand. By the way, senior sister, when I went back to the dormitory yesterday, you asked me if I was free. Is there something wrong? ?Yao Mengna trembled when she heard this question at first. ?But looking at his quite natural movements and expressions, she finally relaxed a little. It seems that he really didnt think much about what happened yesterday ?So Yao Mengna took a deep breath and answered almost as fast as flying: Oh, its nothing. I wanted to ask if you have time to go have dinner together. Thats itas long as its not a work matter. "ah?" Just as she was thinking about what this sentence meant, Chang Haonan had already picked up the filled thermos bottle again: Im also worried that Ill miss something important because of my break. ?Yao Mengna heard a sound of gnashing her teeth, and it took her a moment to realize that it was coming from her. The fist is hard. She suddenly regretted giving the half jug of water to the piece of wood in front of her. A few minutes later, Chang Haonan sat back at the desk with a cup of strong tea. Due to his rather special field of work, Chang Haonan had few opportunities for academic exchanges with foreign colleagues in his previous life. ??So although his English is not very bad, he has memorized it by rote for the exam. He can understand literature and so on, but it just requires a lot of thinking. So Chang Haonan almost instinctively put the English one aside and opened another one first. When the time comes to Wang''an, seeing the words is like meeting each other. [Inspired by the documentation you provided last time, I tried to apply the differential evolution algorithm to the cascade water, thermal power dispatch optimization during this period, and transformed the dual-objective optimization problem into a single-objective optimization through the cost penalty factor and trade-off factor. problem, and relied on trade-off factors to make preference trade-offs between the two goals, and achieved quite good results...] Because the power department is very urgent in urging the progress of the project, I have not been able to discuss this matter with you in advance, but I have written your name and specific contribution on the list of people who have completed the project... ?The letter itself is very short, and it only took Chang Haonan about a minute to read it. Attached is a conclusion report of the scientific research project. "Using Differential Evolution Algorithm to Optimize Water, Thermal Power Systems and Dynamic Environmental Economic Dispatch" There is still a big difference between a thesis report and a thesis. If anything, it is somewhat similar to the abstract and summary of a paper. In short, it does not explain the research content in great detail. ??However, Chang Haonan, who already had a deep understanding of differential evolution algorithms, quickly saw the general technical route of this project. Although the source of inspiration was the instruction document he wrote before, Xu Yang further introduced the Gaussian perturbation operation operator and the local search operation operator, which is actually half a new algorithm, not to mention that she also independently completed the cascade water and fire A series of other work such as mathematical model of power system dispatch optimization. ??Although it is not possible to deduce the Riemann Hypothesis from 1+1=2, it is at least the level of understanding differential equations after learning calculus.?????Its really awesome... About ten minutes later, Chang Haonan put down the letter in his hand, leaned back on his chair and admired sincerely. Simply put, as Chinas economic development level continues to improve, the power shortage problem across the country has become more and more serious. It is very costly and environmentally unfriendly to rely on thermal power plants alone to fill these gaps. Therefore, the country has planned a series of large and medium-sized water conservancy projects including the Three Gorges. However, hydropower generation is limited by the capacity, water level and dry season of the reservoir, and cannot provide stable power supply throughout the year like thermal power. Therefore, corresponding thermal power is needed for peak shaving. Xu Yangs research is precisely to optimize the load distribution of hydropower stations and thermal power stations in various time periods within a given period of time, so as to minimize resource consumption. On this basis, it is also necessary to reasonably adjust the reactive power equipment to meet the thermal stability of the line, the transient stability of the transmission power and the safety constraints of the node voltage, so as to reduce the active network loss of the power system, improve the voltage quality and stability Enhance. That is to say, it is necessary to ensure both high efficiency and high safety. The above two indicators are usually contradictory to each other, so this problem has actually plagued the power sector for a long time. ??This project completed by Xu Yang will undoubtedly be of great help to the future national power transmission system. It can be said that it is a perfect realization of Chang Haonans idea at the beginning of his rebirth. Propose a basic methodology or research direction yourself, and other researchers will conduct specific and application-level research on this basis. As for the names on the list of people who completed the project, he didn''t particularly care. It would be great if everyone could be as good as her... Chang Haonan thought a little unrestrainedly, and at the same time focused on the other letter printed in English. This time, the content is in a very formal paper format. ANewMethodfortheNonlinearTransformationofMeansandCovariancesinFiltersandEstimators A new method for nonlinear transformation of means and covariances in filters and estimators. Then he noticed that in the author column under the title, there was an identical mark in the upper right corner of the names of Chang Haonan and Xu Yang. #These authors made equal contributions to the work of this article. Ah this Chang Haonan scratched his head when he saw this line of small characters. This means...I suddenly have an extra paper published? With the help of an English-Chinese dictionary, Chang Haonan read the entire article in about three hours. After all, a lot of it is his own content, so the reading efficiency is much faster than last time. ?This paper continues the discussion between the two previous people, and the content is naturally about a new Kalman filter algorithm and the post-processing of its results. And on the basis of theoretical derivation, a lot of experimental verification parts have been added. ?There was another piece of paper attached to the back of the paper. In addition to asking Chang Haonan for his opinion on the content as usual, Xu Yang focused on asking his opinion on the direction of submission of this paper. Submit an article ?Chang Haonan put down the pencil in his hand, picked up the cup and took a sip of tea. As a Ph.D. graduate from Berkeley, Xu Yangs thesis writing skills are much better than Chang Haonans. If the latter wants to write an article in a foreign language, he must first write it in Chinese and then translate it. The article in front of him is obviously written in English from the beginning. Even an English layman like Chang Haonan can see its coherence. and professionalism. ??So this time he made almost no changes to the paper, except to name the filtering method as CubatureKalmanFilter (Volume Kalman Filter). Its not that I havent thought about pretending to be big and naming it directly with the last names of two people, but after all, this algorithm does not break away from the scope of Mr. Kalmans thinking, and it is not easy to directly remove peoples names. Anyway, there will be opportunities in the future. As for the content of the paper Based on the numerical approximation and recursive state estimation of Gaussian integral using the spherical-radial integration criterion, of course many extensions can be made. ?For example, the accuracy can be further improved by using the spherical simplex criterion to process the spherical integral and the moment matching method to process the radial integral. Or introduce covariance constraints and cost functions to expand the application scenarios of Kalman filtering to strongly nonlinear systems and non-Gaussian process noise systems, etc. But these are all things at the application level or expansion level. The paper itself is already very groundbreaking. If too much redundancy is added later, it will be superfluous. The longer the article, the better. Whats more, because the derivation process is very detailed, this article is already twenty pages long including references, which is not short in the field of control theory principles. As for the rest of the content Always give other people, or your future self, a chance to write a water thesis. The key is where to publish it. ?Different from the previous article that studied the integrated layout of the inlet and cone front body, the current paper is close to pure theoretical research, and there is no confidentiality. More importantly, its application scope is very broad, not just in the aviation field. Domestic cybernetic theory research has just started, and there are no decent journals at all. No matter how good the content is, no one will read it if it is posted on a junk platform. In the end, it will delay the application of new theories. So if you want to be seen by as many people as possible, you still have to consider submitting to journals under IEEE or IFAC. ?Thinking of this, Chang Haonan knocked his head in distress. In this era of underdeveloped information, there is no way to open a browser and enter Du Niang or Google Niang, enter "what journals are there in the field of control science" and get the results directly. In fact, the entire Shengjing City has just gotten involved in the Internet. ??The reason why Xu Yang wrote to ask about this matter is that her field of study is computer science and she doesnt know much about the control field. ?As far as Chang Haonan''s own memory is concerned, he only knows two top journals, IEEETransactionsonAutomaticControl and Automatica. ?Especially the former, before Chang Haonan was reborn, if he could publish an article on it, he would directly become a prominent figure in the field of control. ??He once plucked up the courage to try to submit an article before graduating with his Ph.D., but unsurprisingly, he failed. The only response was a fixed-format automatic reply email. Then its up to you... ?Chang Haonan took out a pile of letter paper from the drawer, picked up a pen and started writing a reply. In addition to the usual polite greetings, I just want to briefly talk about the situation of this journal. As a top journal in the industry, it naturally has its own characteristics. For example, the submission process is more complicated than that of its peers. Fortunately, Beijing has generally been connected to the Internet, so Xu Yang does not have to submit articles through transnational letters. In fact, if possible, Chang Haonan also hopes to have a sufficient series of domestic journals that can bear the weight of this paper. ?Various standards and evaluation systems formulated by Western academic circles are themselves part of technological hegemony. ?Of course, this kind of thing cannot be accomplished by just thinking about it. Given the current level of scientific research in China, even our own people will not read domestic journals. Many people even translate foreign papers and publish them directly in them. In the original timeline, it was probably after 2010 that a journal with a certain international influence appeared in China. The so-called third-rate companies make products, second-rate companies make brands, and first-rate companies make standards. The same is true for scientific research. Chang Haonan made some calculations. With the current efficiency, he dare not say that at a larger level, in some subdivisions, it will take three to four years to catch up with or even surpass the international advanced level, and to understand the "product" clearly. It shouldn''t be big. At this point, you can consider relying on the Chinese Academy of Sciences or Beijing Hang University to create a journal with international influence. ?Everything is difficult at the beginning. As long as you can achieve a qualitative breakthrough from 0 to 1, the subsequent quantitative superposition will not be a problem. As for longer-term things, such as establishing an evaluation standard to replace SCI, it will probably have to wait until China''s overall scientific and technological strength leads the world. But the day will come. (End of this chapter) Chapter 128 Full status test flight (update 78 for monthly ticket holder flankerr) Chapter 128 Full Status Test Flight (Added update 78 for monthly ticket financier flankerr) Since the Turbojet 14 is not a new aircraft, and the previous ground simulation tests conducted in 624 have been very complete, the aerial platform at the flight test institute only needs to undertake a few test flight subjects such as mid-air restart and thrust transient. Thats it. The testing process went well and did not last too long. So a week after Chang Haonan returned to the 601 Institute, the installation test flight of the improved turbojet 14 engine was finally about to officially begin. Since it was already late October and there were only two weeks left before the opening of the first Xiangzhou Air Show, he and Yang Fenghao and others jointly came up with a quite radical test flight plan - Let two aircraft No. 03 and No. 04 conduct flight tests at the same time. As a prototype that was not in full condition due to being rolled off the production line too early and had no time to be replaced with a new wing, the No. 03 aircraft will remain in Shengjing and will be mainly responsible for verifying the matching degree between the inlet and the engine, as well as the aerodynamics. Overall stability. In fact, this is also the last "stumbling block" facing the August 3rd Project. The real full-state prototype No. 04 will go directly to Yanliang after completing one basic test flight at Beiling Airport to continue the original planned test subjects including avionics and fire control systems. According to the original plan, these contents should have been completed gradually in the past month, but it was delayed due to the accident of the No. 01 prototype. ?This solution can ensure the flight test progress, but it puts forward higher requirements for the final assembly efficiency of Factory 112. Lao He, the two engines for prototype No. 04 have been shipped to you from the 410 factory. ??Yang Fenghao looked at He Ming sitting across the conference table and asked in a serious tone: Under the premise of ensuring quality, please tell me, when will the final assembly of prototype No. 04 be completed at the earliest? He Ming held his chin with one hand, lowered his head and thought for a few seconds: Minimum two days, maximum three days. ?This answer made Yang Fenghata and Chang Haonan look at each other, and they both saw surprise in each other''s eyes. Even though the last time the latter went to Factory 112, the No. 04 prototype in the assembly shop was already in a state where only the engine was not in place, but two days still sounds a bit exaggerated. The basic design of the J-8 aircraft is derived from the J-7, so it naturally inherits many of the latter''s problems. For example, if you want to disassemble the engine, you almost need to remove the rear half of the fuselage first. Of course, compared to the J-7, the J-8 at least makes the rear fuselage into a whole composed of several large parts, but in general it is still a rather complicated task. ?Especially as a prototype machine, after each process is completed, there is a more complicated inspection process than that of a mass-produced machine. Thats right. In the process of communicating with the comrades in the digital design team, we have also refined some relatively advanced quality control methods. He Ming saw the concerns of the two people opposite him, so he opened the notebook in front of him and began to explain: Although we were limited by hardware conditions during the final assembly of the prototype and were unable to upgrade to digital means, we still referred to the five-station quality control model. The first station is responsible for cable laying and installation, the second station is responsible for pipeline installation and cleaning, the third station is responsible for finished product installation and electromechanical debugging, the fourth station is responsible for engine installation and hydraulic debugging, and the fifth station is responsible for flight control debugging and finished product handover. " Separate quality thresholds are set after each station to strengthen the process control of the final assembly process. The zero rate of receiving problems between stations is 100%. Delivery to the next station is not allowed until the processing is completed, so as to ensure that product quality is controlled. " So after receiving the two engines, we only need to complete the work of another four or five stations. Two to three days is enough. In that case, lets make this decision Just when Yang Fenghao was about to make the final decision, a rapid knock on the door suddenly interrupted everyone''s discussion. Mr. Yang, theres an urgent call from the security department of the Central Office of the Communist Party of China. Several people in the conference room looked at each other. This is not a unit that you often come into contact with.?????"I''ll pick it up." ??Yang Fenghata stood up and left the conference room after speaking. The day for the test flight soon came. ?Chang Haonan, Yang Fenghao and He Ming stood at the door of the factory, watching two slender and graceful aircraft slowly passing in front of them. Due to the sudden phone call, the aircraft responsible for this test flight was temporarily changed to No. 04. Compared to the No. 03 prototype which was simply equipped with a new engine, the No. 04 which has undergone in-depth modifications has much stronger performance in all aspects. ?The test pilot sitting in the cabin is still Fu Guoxiang. There were still a few empty seats on the aircraft tractor in front, but none of the three people sat on them. Instead, they followed the plane on both sides and walked step by step to the end of the runway of Beiling Airport. The taxiing test was completed yesterday, and all they have to do today is test flight. Test flight in full condition! ?This is the third time Fu Guoxiang has performed the "first flight" of this aircraft. But this time the situation is a little different. On the one hand, it is the test flight subjects he wants to complete, and on the other hand... Fu Guoxiang closed the cockpit cover and glanced at the tower not far away from him. ??A special leader will come to watch today. No. 04, prepare to take off. He gathered his thoughts and focused on the dashboard in front of him. No. 04, permission to take off! ??A slightly unfamiliar voice came from the radio, speaking slower and with a slight Jianghuai accent. The takeoff process has become almost instinctive for a senior test pilot like Fu Guoxiang. Start the engine, push the lever, wait for the speed to stabilize and then release the brake. But this time, having already formed muscle memory, he found that the tachometers of the two engines had stabilized at about 3/4 before he released the brakes according to his past habit. Obviously, the stability of the engine has been significantly improved compared to before. What happened after releasing the brakes confirmed his suspicion. ??If the last test flight, the aircraft only showed "lightness" at low speed, then this time, Fu Guoxiang really felt "powerful". ?Using a driving analogy, in the past, after stepping on the accelerator of the J-8-3, the gearbox took two to three seconds to react before downshifting at a very slow speed. After installing a new engine, once the accelerator is stepped on, the entire vehicle will quickly complete the downshifting, fueling and acceleration operations in one go. Therefore, although the total thrust of the two engines on paper has only increased by more than 1 ton, the response speed of the power has undergone earth-shaking changes. ?Several routine low-altitude and low-speed test subjects were quickly completed, and Fu Guoxiang finally received a request for a supersonic flight test on the radio. (End of this chapter) Chapter 129 This is the real interceptor! (2-in-1) Chapter 129 This is the real interceptor! (2-in-1) From the moment he got into the cabin, Fu Guoxiang was already looking forward to the high-altitude and high-speed test flight. As a test pilot, he naturally read the performance report of the aircraft during ground preparations. The above shows that the performance of the new engine replaced by the No. 04 prototype is very obvious when the flight altitude is more than 20,000 meters. If nothing else, the available thrust alone has increased from less than 4 tons to about 6 tons. Fully 50%! Generally speaking, due to changes in factors such as air density, temperature, and oxygen content, the performance of aeroengines will decrease as flight altitude increases. This situation will be more obvious at altitudes above 10,000 meters. ? Data such as sea level thrust can be used as a reference for aircraft engine performance, but it may not be of much value. ?It is nothing new for two engines with similar thrust on paper to have twice the performance parameters after being installed and launched into the air. The original turbojet 14 is obviously a model whose actual performance is not so optimistic. As an interceptor aircraft, the J-8 naturally tends to optimize high-altitude and high-speed areas. But this optimization is relative. It can only be said that compared with other aircraft equipped by the Chinese Air Force at the same time, the J-8 has better high-altitude and high-speed performance. But if compared with counterparts in other countries, the results are not very optimistic. For example, as the most important performance of the interceptor aircraft, the maximum speed of the J-8 and J-8B is actually only 2.2 times the speed of sound. Not to mention that compared with monsters like the MiG-25 that have flown above Mach 3, even the F4 and MiG-23, which are not primarily tasked with interception, are stronger in this data. What''s more, due to the power response problem mentioned earlier, fast top speed does not mean fast acceleration. The original J-8''s overall performance at high altitude was still relatively clumsy. As a simple missile launch platform, it is barely enough, but... Until now, the only missiles China can use for the J-8 are the more than 50 Aspads imported from Italy. In fact, Fu Guoxiang is one of the few people in the Air Force who still believes that it is necessary to equip new J-8 aircraft after learning about the existence of Project 10 and Project 11 ?Before joining the flight test unit, he served in the Air Force of the Rongcheng Military Region for a long time and flew both the J-6 and J-8I models. ?Due to the particularity of the geographical terrain in this direction, the Chinese Air Force has long been able to maintain a year-round presence at airports below 3,000 meters. Although the plateau radar station with an altitude of 5,374 meters has a superior view and can capture the signal and issue an early warning almost as soon as the target takes off, in the face of the MiG-25R reconnaissance aircraft equipped by South Asian countries, the J-7 company taking off from Rongcheng or Licheng The range is not enough. Although the J-8I can pose a certain threat, when it slowly climbs and then accelerates to fly over, it often can only eat the exhaust of two R-15 engines... ?This has led to the other partys harassment operations becoming more and more rampant over the past decade, sometimes even deliberately provoking deep into the airspace. ?One of Fu Guoxiang''s comrades had an accident while trying to use power jump tactics to launch missiles beyond the maximum ceiling, and eventually had to leave the combat unit. So today, after experiencing the surprise brought by these two new engines, he cant wait to fly to the speed and altitude that should belong to this aircraft and explore the limits. Prepare to start supersonic flight test. ?Fu Guoxiang repeated the command from the tower, and then followed his past habit of slowly pushing the throttle valve with his left hand and pulling the lever slightly with his right hand to allow the aircraft to enter a shallow climb. ??He noticed that the response of the tachometer needle was still the same as when it was on the ground. Any movement of the throttle valve can be reflected in the change of the engine thrust in a very short time. And it can be seen from the instrument status that even at the moment when the afterburner starts to work, the engine data are still maintained within a relatively stable range. This gave Fu Guoxiang great confidence. ??If it is the previous No. 04 prototype, in order to ensure the stability of the engine''s working condition, the process of the throttle valve from the middle thrust to the maximum thrust needs to be controlled within 20-30 seconds. But this time, he pushed the throttle to the bottom almost twice as fast as usual. The throttle valve has been pushed to the maximum thrust state. Fu Guoxiang''s voice sounded in the tower. Only about 10 seconds passed before he was given the order to conduct the supersonic test. There was a burst of warm applause among the lay audience present, but it was immediately interrupted by the elder waving his hand. Dont disturb the comrades in the technical unit. The command room became quiet again. How is the condition of the engine? The test flight commanders voice was a little nervous. He was also a test pilot before he was grounded due to age. He once participated in the test flight of the J-8B model, so he is very familiar with the techniques of stable thrust and afterburner. The time just used was too short. Report to the tower, I have exceeded the speed of sound, the current altitude is 11670, and all engine data are very stable. ?Fu Guoxiang''s calm voice continued to be heard, but everyone could tell that he was suppressing his excitement: The power response of the aircraft is much more agile than before, and... the thrust at the current altitude is also stronger, and my speed increases very quickly! ?Before the official test flight, everyone involved in the test flight will go through multiple briefings to understand the theoretical data of the aircraft. On the one hand, the results obtained through calculations and simulations often do not match the actual situation. On the other hand, many properties are difficult to quantify on paper. Hence, what the test pilot reported was definitely beyond most peoples expectations. ?However, while everyone is still digesting everything that has just happened, the No. 04 prototype has reached a new speed and height node. The current altitude is 16500 and the speed is 1850. That is to say, it has exceeded 1.5 times the speed of sound. Although the test flight will be tracked by radar throughout the entire process, ground radar can only give the ground speed of the target, and the more valuable data for an aircraft is the airspeed. So under normal circumstances, the data will still be based on the pilot''s report. For more advanced test flight systems in later generations, the ground tower can detect the status of the aircraft in real time. However, at this time, detailed test flight data can only be obtained after the aircraft returns. Fu Guoxiang in the cabin had left the sound far behind him. In front of his eyes, the number displayed on the speedometer had reached 2480, and was still increasing at a very fast speed. ?This aircraft has reached similar speeds in past test flights, but at that time, it was already very difficult to continue accelerating. Altitude 20500, surface speed 2590. This is the theoretical maximum ceiling and speed of the old J-8 in the past. In fact, on any aircraft, these two indicators cannot be met at the same time. In other words, the No. 04 prototype is far from reaching its limit. Request to continue the test flight! Fu Guoxiang finally experienced the performance of a real interceptor aircraft! ?This request made the commander inside the tower hesitate for a moment. Although the prototype No. 04 cannot be regarded as a serious "first flight" this time, it has just been replaced with a new power system. It is actually responsible for the flight test of the turbojet 14 as a carrier platform. Logically speaking, this first flight should not be too extreme a test. Not to mention that there are leaders visiting. ?Even the current altitude of 20,000 meters and the speed of Mach 2.2 have exceeded the original test flight plan. However, according to Fu Guoxiangs report, the current altitude and speed should be far from reaching the limit for this aircraft, and based on the previous high-altitude platform and aerial platform test results, there is indeed the potential for further attempts... After a few seconds of confusion, he turned back and looked at Yang Fenghao and Chang Haonan who were waiting behind him. First check the working conditions of various systems of the aircraft at the current altitude and speed. Yang Fenghao stretched out a hand and pressed it on the back of the commanders seat: Especially to see if the engine can provide stable power supply, this is very important. Fighters consume a large amount of electrical energy during flight and combat. Under normal circumstances, the IDG generator driven by the main engine generates electricity. But the engine has its limits after all, and the total power it can provide is only so much. If the aircraft is allowed to fly close to the limit for a long time, or the engine is not stable, insufficient power supply may occur. Later generations of F35 fighter jets have been troubled by this problem. They were unable to maintain the equipment on board and operate at full power at the same time. There was no solution until Chang Haonan was reborn. So, if the power supply can still be maintained normally, it at least means that the engine is still in a relatively comfortable working condition. The command command was quickly given to Fu Guoxiang in the air. As a full-state prototype aircraft, the 1471G radar is naturally installed on the No. 04 aircraft. ?Compared to the 208A monopulse radar on the J-8B, which is essentially a range-finding radar modified, the performance of the 1471G is much better. ??This is China''s first X-band airborne pulse Doppler radar. It has (at least theoretically) downward-looking capabilities for the first time and can guide semi-active radar-guided missiles to conduct over-the-horizon attacks. No matter how you say it, for an aircraft like the J-8, it meets the needs. ?However, as a price, the power consumed by turning on the radar is much higher than in the past. The radar is powered on and the self-test is successful. When the radar is turned on at an altitude of 20,000 meters, if a target drone is not specially set up, it will naturally not be able to search for anything. But as long as it can work normally, at least it means there is no problem with the power supply. Chang Haonan and Yang Fenghao looked at each other and looked happy after hearing the news. ?Compared to the aircraft body and aerodynamics, which were designed and tested entirely by their own hands, the 1471 series of radars developed by the 14th Institute of Electrical Engineering is a factor that is not completely controllable. But since the self-inspection can be completed at an altitude of more than 20,000 meters this time, it means that at least there is no problem fundamentally. As for the 11 air-to-air missile... Strictly speaking, airborne weapons are not included in the August 3rd Project. ?However, judging from the current situation, it is really possible to encounter an "organic and no bomb" situation. ?Of course these are things for later, you have to eat your food one bite at a time. The problem of missiles cannot be solved by 601. The top priority is to continue to complete test flights. The test flight is allowed to continue, but the maximum speed must not exceed 2900. ?Chang Haonan lowered his head and said next to the tower commander. ?According to his simulation calculations of the performance of the J-8-3 after the engine change, it is no longer the power factor that limits the aircraft''s maximum speed, but the airframe. When an aircraft flies at supersonic speeds in a dense atmosphere, the friction with the high-speed airflow will cause the surface temperature of the aircraft body to rise sharply, which will lead to the weakening of the structural strength of the body''s material structure and a reduction in stiffness. ??For an airframe structure like the J-8-3, which uses aluminum alloy as the main material, Mach 2.5 is basically the limit speed to ensure safe flight. If you want to continue to make breakthroughs, you have to put a lot of effort into the body materials. For example, the MiG-25 made extensive use of VNS-2 high-nickel martensitic steel and VNS-5 high-molybdenum and high-nitrogen austenitic steel, two aerospace-specific structural steels that were considered black technology at the time, in the body structure. Their material density is It is more than three times that of aluminum alloy, so it is almost equivalent to a T72 tank flying in the sky when fully fueled and loaded with ammunition. The SR71, which is even faster, uses a large amount of aviation titanium alloy. At the same cost, due to the ductility of the material, oil will leak until the aircraft is "heated" to a normal state. In short, even if the cost and technical difficulty are not considered, for an aircraft like the J8-3 that is oriented towards the 21st century, there is no need to pay a high price in order to break through 2.5 times the speed of sound. When the plane''s speed reached 2800, Fu Guoxiang finally discovered that the numbers on the instrument were rotating slower. He was already at an altitude of 22,500 meters, and the thin air caused the plane to gradually stop climbing. Since the sunlight cannot be fully scattered, the sky above Fu Guoxiang no longer appears blue, but gradually turns into dark black. Achieve speed 2890, prepare to slow down and descend altitude. ??If you choose to exchange speed for altitude, you can probably reach about 24,000 meters, but that is not today''s test flight project anyway. ?Moreover, due to the huge fuel consumption during afterburner flight, the fuel in the plane no longer supported his continued squandering. He has courage, but he is not reckless. ??Everyone who had just stayed in the tower and was not responsible for command tasks had already arrived near the apron. The accompanying photographers set up long guns and short cannons and aimed them at the runway. ?Ten minutes later, the slender figure of Unit 04 gradually appeared from the horizon, gradually descending and approaching the runway. ? ? Thanks to the new wing designed by Chang Haonan, the approach speed of the aircraft is much slower than before, and it looks more stable. The rear wheel touches the ground first. When the rubber came into contact with the runway, a puff of smoke rose up and a sharp "squeaking" sound was made. The parachute was then deployed. The plane finally stopped steadily at the end of the runway. ??The entire Beiling Airport was suddenly drowned in cheers. As usual, there will be another chapter in the afternoon (End of this chapter) Chapter 130 Preparing for the air show (additional u Chapter 130 Air Show Preparations (Added update 88 for monthly ticket financier flankerr) Soon, Prototype No. 04 was towed back to the tarmac by a tractor. The crowd has been waiting here for a long time. ?Chang Haonan stepped forward, raised his head and touched the air intake of the plane. I dont know if it was his hallucination. Although it had been landing for a while, the surface of the skin seemed to still retain the heat generated during the previous supersonic flight. It''s not hot, just warm. Just like how he felt inside at this time. Compared with Yang Fenghao, He Ming and others in the crowd nearby, Chang Haonan has only been exposed to the 83rd Project for a few months. It is difficult to say that he has a deeper affection for this aircraft than others. But correspondingly, after resurrecting his life, he knows too many regrets that others do not know, and too many difficulties that only he has experienced. The feeling here is hard to describe. ? As an aircraft model, the J-8-3s status in the Chinese Air Force may not be very important. But as an aeronautical project, it can become a symbol. ?Especially because the turbojet 14 as its standard power has successfully passed the verification, it can be regarded as a breakthrough in the field of aviation power. For the first time, China has an aircraft engine that is entirely its own! Out of the corner of his eye, Chang Haonan noticed Yan Zhongcheng walking around the wing to the back half of the plane. While most people''s attention was focused on the slowly opening canopy, he gently touched the main wing. A kiss on the skin between the horizontal stabilizer and the tailplane. That is exactly the position on the body used to fix the two turbojet 14s. The ground crew who came from the other side placed a boarding ladder on the left side of the aircraft cabin. Although the test flight just now was very extreme, there were actually no major overload maneuvers arranged throughout the process. Therefore, Fu Guoxiang did not bear much pressure on his body, and he could easily get out of the cabin and get down to the ground. For an experienced flyer like him, it is naturally impossible for his legs to become weak after landing like Chang Haonan. ?In addition to routine welcomes to pilots such as flowers and applause, leadership speeches are naturally indispensable on occasions like today. ??The crowd that had just been scattered around the plane gradually gathered. The specially arranged scene in front of the camera ended quickly. But no one had the intention to disperse. Because everyone knows that in the current context, some words cannot be said on the scene. ?So after the camera leaves, the real content of the speech comes. "Project 83 is a good start, and it came very timely. I said before that even if we are trousers, we must do it. You have done a good job and did not let us be trousers. And I have heard from the person in charge of the negotiations for Project 11 Comrades have said that their negotiation process has also been beneficially influenced by you. " "Relying on others will never work. Not the Soviet Union, nor the United States. We can only rely on ourselves." Ten years ago, in 1986, we also used the J-8 and spent US$500 million to cooperate with the United States. "Later, we sent two planes there and invested more than 200 million US dollars in money. However, as soon as they imposed sanctions, our planes were detained and the money was not returned to us." Speaking of this, the voice in the autumn wind seems to be a bit desolate: Comrade Zongtang and I said at that time that we must avenge this! "But it''s hard to say this, or frankly speaking, we don''t dare to say it, so the external statement has become, we have to fight for this tone." ?????????But we ourselves must know in our hearts that this is revenge, no. Its just the hatred of Project 82, the hatred of the Yinhe incident, and the hatred of the two aircraft carrier battle groups! Even if we dont say it, we Chinese people must keep it in our hearts! "This model should be publicized and cheered up by the people across the country. Comrade Yang Fenghao made an application before, saying that he wanted the J-8-3 to be unveiled at the air show next month. This request should be unreasonable from a policy perspective. The question, of course, is whether it is technically mature or not, and it is up to your aviation industry department to make your own judgment. In every sense, the first test flight of the No. 04 prototype after the engine replacement was a complete success. As for participating in the first Xiangzhou Air Show, it was naturally decided. ?Of course, it is not easy to temporarily change the exhibition plan. After all, this is the first air show, and the organizers of the air show lack experience in dealing with such emergencies. ?So, Chang Haonan, whose engine improvement work finally came to an end, was dragged into the ensuing work coordination meeting. ??But for him, this can be regarded as an adjustment in life. In his previous life, he was preparing for the postgraduate entrance examination. He was so busy every day that he could not find the time to go to the southernmost part of the motherland, so he missed the very memorable first Xiangzhou Air Show. ?In this era when media consultation is not developed, the inability to visit the scene in person means that we can only see extremely limited photos and scenes through newspapers and TV. Even after entering the Internet era, when Chang Haonan searched for the 1996 air show, the information he could find was still very limited. This has become a small regret for him. But this time, he could not only be present in person, but even be present as a staff member of the exhibitor. How to put it this way, its a bit like the feeling of a fan being reborn and going back in time to marry his idol. The air show has doubled the exhibition area allocated to us, so the J-8IIM that was previously scheduled to participate in the exhibition can be displayed on the ground together with the J-8-3. ??While Yang Fenghata was introducing the situation, he pulled out a form from the side and placed it on the projector platform. The above is the air shows sequence arrangement for the air performances of different exhibitors. "As for the air show, because the air show only lasts for six days, and the weather in the last two days was not very good, the arrangements are very intensive, and there is really no extra time for us. However, the exhibition organizer said that they can arrange it for us. On the afternoon of the opening day, he was the first one in the audience. I see that in this performance sequence, behind us is the J-7MG from the 611 Research Institute, and the third one behind us is the Su-27 and Su-30 dual-plane performance by Sukhoi. Someone across the conference table made a comment: Is it possible to consider pushing the Sukhoi companys performance to the next day, and then bring the Jinmeng aerobatic team to the front? The atmosphere in the room suddenly became lively. Obviously, there are many people who agree with, or at least agree with, this plan. No matter what, the J-8-3 cannot break away from the overall design of second-generation aircraft. Moreover, it only has one aircraft and can only perform stand-alone performances. Judging from the organizers schedule, the flight performances of the two Flankers may be superior in terms of time and excitement. ??If the two performances are arranged on the same day, it is likely that all the limelight of the day will be taken away by the latter. Relatively speaking, the Jinmeng Aerobatic Team is just a civilian performance team using four propeller aerobatic aircraft. No matter how wonderful the performance is, it is impossible to compete with the J-8-3 and J-7MG. but Do you really want to do this? (End of this chapter) Chapter 131 Show me the climb rate of the J-83 Chapter 131 shows the climb rate of the J-8-3 ??Yang Fenghata did not respond immediately, but held his face with one hand and fell into thinking. ?This concern is certainly valid. The J-8-3s participation in the exhibition can only be used to find potential foreign customers for at most two points, and the remaining eight points are dedicated to cheering up the Chinese people. But if it is put together with the Su-27 flight performance, then this effect... He looked at the deputy chief designer Liu Ming and Chang Haonan who were sitting on both sides of him As the latter''s role in the August 3rd Project grew larger and larger, the latter''s seats in meetings also increased. From the beginning, he could only huddle in the corner of the conference room with Lin Shikuan, but now he can be assigned to a meeting The position at the edge of the table has now become stable at the front. ??Although he may not stay in the 83 Project Team for a long time, this feeling... Its still cool! After all, not to mention sitting in this position in my previous life, even if I occasionally attended a meeting, at most I was just a spectator. Its not even attendance. I think it would be self-defeating. ?Seeing Yang Fenghao''s posture, Chang Haonan felt that it was almost time for him to speak: The Xiangzhou Airshow is not only a matter for Xiangzhou, but also for China as a whole. This year is the first time it will be held. It is the time when we need to gain reputation the most. On the one hand, the arrangements for the air show have been basically finalized. If there are any temporary changes, it will be detrimental to the exhibitions reputation. On the other hand, even if the performance of the two Flankers is postponed to the next day, it seems that it will not have a direct impact on us, but it will not make any difference to those who follow the air show. As a late-developing country, we are currently unable to produce an aircraft that surpasses the Su-27. There is nothing to be ashamed of. Going to the air show is originally to show our progress. Being timid in the face of competitors and still trying to make extravagant moves seems like we are deceiving ourselves and others and are not confident enough. ?Chang Haonans words quickly had an effect. ?Those who were still able to stay in the military industrial units in 1996 had more or less the energy to refuse to admit defeat. ?Now, just in time for the successful test flight of the No. 04 prototype after the engine replacement, the long-term depression has finally been released, and the morale has naturally improved. Once again being stimulated like this, the effect will be immediate. Some people immediately stood up to express their support: Chang Gong is right! Dont care about the performance of the Su-27, it must not lose its momentum! There are also extensions based on Chang Haonans analysis: Another point is that our J-8-3 and Su-27 are performing on the same field, so the pressure should be on Sukhois side. One sentence woke up more people. Yes, that makes sense Really speaking of the performance effect, Su 27s win is nothing, but if it is not as good as us, then it will be a big loss. In fact, the person who made this suggestion at the beginning did not have any bad intentions. He could only say that caring would lead to chaos, and he wanted to get the best performance from his own aircraft. So everyone quickly reached a consensus on this matter. "In this case, let''s determine what items need to be arranged in this 20-minute flight show." ?Yang Fenghao said and turned a page of the notebook in front of him: After all, this is still a new aircraft, and it will take some time for the pilots to adapt to it. The atmosphere in the venue suddenly became lively again. If an airplane performs...super maneuverability? ?Although everyone is engaged in aircraft design, they are not actually experts in flying itself. Not surprisingly, someone immediately raised objections: "It would be too risky to use a prototype aircraft that has not yet been designed and finalized to engage in super maneuvers. And I also know that the Su-27 will most likely perform the most classic Cobra maneuver. We cannot use our own shortcomings to attack each other''s strengths. We have to think about what we have What unique advantages do you have? ?This speech was obviously very pertinent, so everyone started brainstorming along his train of thought. Unique advantages...but the things we are better at cannot be performed at air shows. Our ceiling is higher than theirs, but... The flight show itself is of a special nature. In order for the audience to watch it with the naked eye, it must be low-altitude and low-speed subjects, and the flight overload cannot be increased very much. ?This is really not friendly enough for a high-altitude, high-speed aircraft. Chang Haonan was also a little troubled at this time. The improvements he had made to the J-8-3 in the past few months were mainly focused on the maneuverability under low-altitude and low-speed flight conditions, allowing the aircraft to fly to 2.4 levels that he could not even imagine in the past. Doubling the speed of sound is actually a matter of piggybacking. ??But with the foundation of the second-generation aircraft, no matter how good the low-altitude and low-speed maneuverability is, you really have to compare it with the Su-27 with a lifting body design... That''s not the case after all. ?While he was thinking about possible performance content in his mind, he lowered his head and looked at other content arranged in the air show, trying to find some inspiration from it. Su-27 and Su-30 fly against each other In an instant, an idea flashed through Chang Haonan''s mind. Actually, if I have to say it, we still have advantageous projects... The No. 04 prototype can be allowed to focus on some vertical maneuvers, especially large-angle climbs. After replacing the new engine, the thrust-to-weight ratio of the aircraft will exceed 1 when taking off without weapons. ??Of course everyone present is well aware of the basic performance of the aircraft, but some people still have concerns: Vertical maneuverability... But the thrust-to-weight ratio of the Su-27 is even higher. It is really better than the climb rate. Unless it goes above 15,000 meters, it still wont be able to take advantage. This is true in common sense, but compared with other performance, there is still a certain room for operation in this aspect. ?Chang Haonan adjusted his sitting posture and said to the person who just spoke: I saw the performances submitted by Sukhoi. They were all performed by two machines, and the whole performance was very long. This means that the two aircraft have to load more fuel when taking off. Moreover, the single-seat Su-27 aircraft has to cooperate with the movements of the two-seat Su-30 during the performance and cannot exert its full performance. We are all insiders, and after Chang Haonan mentioned this, we will naturally understand what is going on. For almost all fighter jets, the two-seat version requires extra weight and space to accommodate an extra pilot and corresponding operation and life support equipment, so its performance will be weaker than the single-seat version of the same model. Some. Depending on the specific model, the difference is probably between 5% and 10%. But the Flanker family is an anomaly. Due to its iconic nose design with a depressed angle, the rear seat of the tandem two-seater model Su-27UB is strictly behind and above the front seat, and the height difference between the two pilots is huge. ?This design brings unparalleled visibility to the back seat (which is useless in most cases, and is essentially to accommodate the huge radar), but it also greatly increases flight resistance accordingly. ?This is not over yet, because the heightening of the cockpit will affect the vertical fin efficiency and directional stability, so the two-seat version has been replaced with a larger vertical fin... ?In short, after a lot of hard work, the flight performance of the two-seat Flanker is far worse than that of the single-seat version. It is generally believed to be about 15% or even higher. Not only that, our performance time is relatively short, so there is no need to bring half a full amount of fuel according to the normal routine, and we can also reduce some weight. If you look at it from the inside out, at least from a physical perspective, you should be able to achieve vertical maneuverability that is not inferior to those of the two Flankers! (End of this chapter) Chapter 132 In the news? Chapter 132 was in the news? ?This work coordination meeting lasted from the morning to the evening of the second day after the first flight of the No. 04 prototype. Even lunch was a box lunch ordered directly from the canteen. There is not much content directly related to the air show, but the J-8-3 is an aircraft in the process of test flight after all, so it will also involve many test flight subjects that must be completed before the opening on November 5. ? ? Thanks to the numerical simulation methods that Chang Haonan is good at, the test flight progress of Project 83 is very fast, and the number of sorties required to complete the same task has been reduced by half or even two-thirds compared with the past. But this puts forward higher requirements for the selection of test flight parameters and process arrangement. For him, it also means greater pressure. Fortunately, with his past experience and the help of the system, he can still cope with it. ?Chang Haonan even likes the days when he has such a heavy burden on his shoulders. By the way, the system ?Thinking of this, he quickly opened the system panel while walking back to his dormitory. The No. 04 prototype equipped with a new engine successfully completed its test flight yesterday. This aero-engine improvement project that has lasted for several months has finally reached an important node. According to the characteristics of the system, this time can generally be regarded as completing the task. Research Points: 260 Theoretical level: LV2 (1000/10000) Engineering experience: LV2 (270/10000) Management ability: LV1 (600/1000) Comprehensive ability: LV1 Projects in progress: 0 Projects that can be carried out: 0 As he expected, the number of projects in progress has returned to 0. ?However, the reward for completing this project was indeed beyond expectations ? 150 scientific research points, 500 theoretical experience points, 1000 engineering experience points and 500 management experience points. ? ?Chang Haonan took several deep breaths in succession before he managed to calm down. ?According to the instructions given by the system when you are just reborn, the number of scientific research points and three experiences gained each time are directly related to the impact of the scientific research project. He knows that the Kunlun engine project is very important to China. But it is obvious that in the judgment of the system, this improved turbojet 14 is even more important. ?At the same time, inside a tube building apartment in Liucheng City, Liaoning Province. Chang Jiayao, who had just had dinner, was sitting in front of the color TV she had just bought at home, preparing to enjoy the rare relaxation time for high school seniors. Born in 1980, she was basically one of the last "legal" second-born children in the local area. She was also a girl, so she was loved by her mother Zhou Li and her father Chang Yuanchao. ?In addition, Chang Jiayao is really studious and obedient, so even though the college entrance examination is approaching, she is still allowed to watch TV for a while every weekend night. As the time came to seven o''clock in the evening, the picture of three primary color light beams flying over the earth appeared on the TV on time. ? News Network. In the mid-1990s, there weren''t many TV programs. People like her who could only watch TV twice a week were obviously not the audience for TV series. In the end, what Chang Jiayao was most interested in became the news. The first news today is the special content of Shengjing Aircraft Industry Group. In 1996, Xinwen Broadcasting realized for the first time all-day broadcasting, additional content and live broadcast. Therefore, the efficiency of news arrangement was much improved compared to the past. ? ?Accompanied by the anchor''s pleasant voice, the news footage showed a graceful fighter jet speeding away and then lightly leaving the ground... ?Perhaps most girls will not feel anything about this kind of news, but Chang Jiayao, who has decided to participate in the recruitment next year, is different after all, so she stares at the TV screen with relish. Since most of the test flight was completed at high altitude, ground cameras could not capture much. After showing the footage of the plane taking off and several low-altitude subjects, it was followed by landing, and then the test pilot left the plane and received a hero''s welcome... Suddenly, Chang Jiayao noticed a figure next to the air intake. ?While most people were paying attention to the test pilot, the man reached out and touched the side of the plane. Even though the definition of the picture tube TV was quite average and it was just a back figure, Chang Jiayao almost relied on instinct to recognize that it should be her brother Chang Haonan. Dad! Mom! Chang Jiayao quickly stuck her head out and shouted to Chang Yuanchao, who was cleaning up in the kitchen, and Zhou Li, who was preparing lesson plans in the bedroom: I saw my brother on TV! As soon as he finished speaking, with a few stomping footsteps, the couple rushed into the living room almost at the same time at an unprecedented speed. ??The pot brush in Chang Yuanchao''s hand was even dripping with water. Where? "It just passed by, but wait a minute, there might be more." Chang Jiayao''s tone was a little regretful. "Is this... reporting on Shengjing''s affairs?" ?Zhou Li asked, pushing up her glasses on the bridge of her nose. Yes, its a test flight of a new model of aircraft. When talking about new aircraft, Chang Jiayaos eyes seemed to be shining with stars. When she learned about the pilot recruitment policy before, she knew that there were currently only female pilots flying transport aircraft in China. ??But this does not affect Chang Jiayao''s expectation that she can fly on a fighter jet. After all, there is always a first for everything. ?Especially after reading Lilia Litvyaks story in a book, she even put a white rose sticker on her pencil case. At this moment, the figure just now appeared in the picture again. It''s just that this time it appears from one side. Its a pity that I still havent seen the face. Thats it! ?Chang Jiayao jumped directly in front of the TV, pointed at the screen and said. This Chang Yuanchao scratched his slightly bald head: Did you see his face just now? No. Chang Jiayao shook her head decisively, and then said in a very firm tone: But you can also recognize it from the back, thats my brother! "It makes sense to say it''s him, but... Xiaonan didn''t tell us that he went to Shengjing, right?" Zhou Li''s tone was filled with uncertainty. At this time, the next news was already broadcast on the TV, so Chang Jiayao also sat back on the sofa. Whats the matter? Missions of this type must be confidential. You cant talk to us casually on an ordinary phone. She had no doubts about her own judgment. Stop it, hes only in his senior year at the beginning of the school year. Even if he does have some confidential tasks as you said, its his turn to be an undergraduate to do it Chang Yuanchao did not go to college, but he was quite knowledgeable. He immediately rejected his daughters judgment: Its probably because Xiaonan didnt come back during the summer vacation, and you missed him a little bit. "But" Chang Jiayao wanted to say something else, but in the end she just pursed her lips and did not speak. Okay, its already the end of October, Brother You will definitely be back from winter vacation Zhou Li touched her daughter''s head, turned around and left the living room first. That night, Chang Jiayao, who was lying in bed, was still thinking about the scenes on the TV news. An idea suddenly appeared in her mind. If the recruitment is successful, will I have the opportunity to fly the plane designed by my brother... (End of this chapter) Chapter 133 The possibility of a 100-ton passenger plane (more updates for flankerr’s tip) Chapter 133 The possibility of a 100-ton passenger plane (Added update for flankerrs reward) ??The next week flew by like a flash, and it soon came to two days before the opening of the Xiangzhou Air Show. In order to adapt to the military''s updated equipment naming habits after entering the 1990s, and to make it easier to communicate and understand when facing possible foreign customers, the final product of Project 83 was officially named - J-8C. Chang Haonan, Yao Mengna and others, as technical support staff of the exhibitors, naturally arrived at Xiangzhou in advance and stayed at a hotel near the Jinwan District International Air Show Center according to the arrangement of the exhibitors. ?This high-end hotel can be said to have been specially built for the Xiangzhou Air Show. Exhibitors, media, and invited guests all stayed here. The first Xiangzhou Airshow was not divided into professional days and open days as it was later. From the first day, everyone could buy tickets to visit. So people who eat melons can actually live here. ??Its just that among ordinary people in this era, there are not many people with enough money in their pockets to make a special trip to watch the air show, and even fewer can afford to stay in this hotel. At the 14th Air Show in later generations, Chang Haonan also came here during his vacation. As it turned out, the hotel was fully booked a month in advance. ?Yang Fenghao, the chief designer of the aircraft, did not follow. It is said to be "technical support", but aircraft designers are really of little use in this situation. ? ?The focus is still on the technical workers from Factory 112 and the ground staff at Beiling Airport who came with them - Xiangzhou Airport is a purely civilian airport, and it is impossible for anyone to maintain fighter jets from various countries, so these tasks need to be done by exhibitors. ? It''s okay if you''re in the country, you just need to send someone. If you go to a foreign country, especially a place where the aviation standards are very different from your home country, you have to bring your own support equipment and even aviation fuel. Otherwise, it can only be displayed on the ground. ?Take the Warriors Aerobatic Team as an example. When they perform abroad, they will be followed by at least one IL-76 transport aircraft for accompanying support. So going abroad to participate in an exhibition may seem simple, but in fact it is quite a test of a countrys aviation industry level. Twenty-six years Chang Haonan, who was lying in bed, originally wanted to take a rest, but memories about the past or the future flowed out slowly but continuously like fine sand in a funnel, making him unable to sleep no matter what. Chang Haonan, who was tossing and turning and unable to sleep, simply gave up the idea of ??resting, got up and went to the window to open the curtains. ?Out the window is the 4,000-meter-long 4E-class runway at Xiangjiang Airport. ?There was a faint roar of airplanes from the horizon. ?Chang Haonan raised his head and looked into the distance. A formation composed of an Il-78 tanker and two Flankers are aiming at the runway and slowly descending. As one of the few foreign exhibitors that can conduct actual flight demonstrations, they occupied a large part in the early publicity of the air show. Relatively speaking, the J-8C, which decided to participate in the exhibition at the last moment, failed to obtain any publicity resources. After all, in this era where print media and radio and television are the main communication carriers, ten days is still too short. Higher in the sky behind them, there is also a twin-engine medium-sized passenger plane circling. ?After thinking for a while, Chang Haonan finally remembered that it should be a Tu-204S, which is the cargo aircraft type of Tu-204. Tupolev has always hoped that this model can open up China''s civil aviation market. To be fair, for an aircraft that completed its first flight in 1990, the Tu-204 was not considered backward in the early 1990s. But the timing of this first flight is destined to be a tragedy. ??Without the support of the Warsaw Pact market, this single model cannot compete with the well-established Boeing or Airbus families, not to mention that they do not have enough funds to further optimize the aircraft. For domestic airlines, it is absolutely unreasonable to introduce a new aircraft that has no special advantages in performance and is not compatible with the maintenance and support system of Boeing, Airbus and McDonnell Douglas. So Tupolevs efforts were in the wrong direction from the beginning. Because if we think about it differently, this model can still be seen as a military special aircraft platform. No matter what, it is better than Figure 154M and Yun 8... ??More importantly, if the various data of the aircraft can be adjusted to comply with the standards of the Chinese Aviation Industry, it can also be used as a practice in manufacturing 100-ton passenger aircraft. ? It is already early November, and Hufeis MD90 production project has basically entered the countdown to life. ?In the original timeline, after the MD90 production line was stopped, the Ministry of Aviation placed its hopes on the Europeans, hoping to produce a 100-seat AE100 small mainline passenger aircraft in China. The result, of course, was unsurprisingly nothing. ?Later, Airbus took the AE100 design directly and built the A318 passenger aircraft almost intact. ??In short, after several twists and turns, the aircraft production line that was upgraded at a large cost had to be used to provide tools and equipment for the Airbus aircraft assembly line in Tianjin. The more valuable skilled workers with experience in large-scale aircraft manufacturing also had no choice but to resign or change careers because of the loss of orders. It also means that the technical system that was barely built after many twists and turns since the Yun-10 project collapsed. Compared to Yun 10 itself, this is a more heartbreaking loss. There has been a technological gap for more than ten years since then. The largest aircraft that China can produce on its own has always been the 60-ton Y-8. ? It was not until the C919 No. 001 prototype rolled off the production line in 2015 that Hufei resumed its mainline passenger aircraft assembly capabilities. In fact, both Airbus and Boeing are at their peak right now, and it is impossible for them to agree to complete the main part of aircraft production in China. As for switching to using Chinese standards to produce aircraft... Laughing to death, there was nothing so good in my dream. ?? But Tupolev was in trouble and it was different. Except for Figure 160, as long as you give money, you can basically give whatever you want. ??With the precedent of Sukhoi Design Bureau making concessions on Project 11, there is no need to worry about the Russians being as stubborn as in previous lives. Furthermore, since it involves the adjustment of production standards, it is inevitable to cooperate with Chinese technical personnel. In this way, we can also learn a little bit from the design of large aircraft. ??After all, Chang Haonan cannot provide others with proficiency like the techniques in the novels about cultivating immortals. The projects he will face in the future will only become more and more complex, and it is unlikely that the main work will be completed by one person like improving the design of wings or compressors. In the field of engineering, experience is at least as important as theory. Otherwise, Britain and the United States, which were once infrastructure madmen and major shipbuilding countries, would not have lost these capabilities in such a short period of time. "Um" Chang Haonan looked out the window at Tu 204S, which was already sliding to the ground, and a clearer idea emerged in his mind. Its still a win-win situation. A win-win situation means I win twice. (End of this chapter) Chapter 134 All living beings (two in one) Chapter 134: Appearances of Living Beings (Two in One) ??While Chang Haonan was watching the Tu-204S in the distance slowly sliding into the parking space from the runway, in another room downstairs from him, Yao Mengna was also sitting on the bed and staring out the window. ??Its just that her eyes were not focused on any particular place, it looked more like she was simply... In a daze. So much so that even though her colleagues in the same room called her several times in a row, there was no response The travel standards arranged by 601 for Chang Haonan are already at the same level as those of Yang Fenghao and others, but most people still require two people to live in a standard room. It wasnt until the other party patted her on the shoulder that she finally came back to her senses. What are you looking at? So focused. ?The woman who lives with Yao Mengna is the same female engineer who was on a business trip to the 624 Institute last time, named He Meiying. ?The latters husband also works in the 601 Institute, but he is mainly responsible for security work, so naturally he cannot go on a business trip with him. By the way, after you returned from Fucheng last time, did you make an appointment with your regular workers? He Meiying asked casually while sitting on another bed while wiping her wet hair with a towel. Gossip is human nature. What''s more, the gossip between two young people in 601 School has become very famous in recent months. ?Although there is no such saying in this era, the reality is that many people in the same office as He Meiying are waiting to talk about this CP. Huh? I... ?Yao Mengna never expected that the other party would ask a question of this level, and she was immediately speechless. Ah, what, could it be that the last time you asked me about places suitable for two people to eat near 601, you were just to treat others? The fighting capabilities between married women and unmarried women are not at the same level at all. As a person who has experienced this, even though He Meiying does not have much direct contact with Yao Mengna in her usual work, it is enough for her to understand what this young girl is thinking. "No, I...I didn''t make an appointment." Yao Mengna said, feeling her cheeks feel a little hot. "ah?" This time it was He Meiying''s turn to look shocked. She even stopped wiping her hair with her hands. After a while, she hesitated and asked: He refused? Thats not the case. Yao Mengna shook her head and replied in a dejected tone: Or I dont have the chance to invite you at all. The day I returned to No. 601 Office, I asked him if he was free, and the result...he simply said no..." He Meiying took a deep breath. He said no, and then you didnt try again? Her tone was quite full of hatred, and it was hard to say who she was targeting. Perhaps its both. He has been busy with the air show since then Oh my God He Meiying sighed and held her forehead helplessly: You two are really Then she raised her head and looked at the time on the wall clock next to her: Its just about time for dinner, and we shouldnt have much to do during the air show these days. If you go find him now, it will definitely be fine. He Meiying was also worried that her CP would not be BE. "I..." Yao Mengna''s tone was a little shy: "I was just thinking about what clothes to wear better." ?At this time, He Meiying noticed three dresses of different colors and styles on Yao Mengna''s bed. She frowned: Did you only bring these dresses? Thats not true. Yao Mengna lowered her head and took out a few more sets of clothes from the suitcase: But I think these three styles look better. Is there something wrong with them? Thats not true. I just think that judging from Chang Gongs usual behavior, he might prefer you dressed like this. He Meiying shook her head, stood up and walked to the bed next to her, picking out a pair of jeans and a white shirt. Even though they are part of two sets of clothes respectively. A few minutes later, Yao Mengna stood in front of the mirror after changing her clothes. In fact, based on her appearance, it is a bit difficult to make herself look bad. ?However, this outfit does have a slightly different feel when mixed together. At least the advantage of leg length is very obvious. Thank you, Sister He, then I will Just as Yao Mengna was about to change her shoes and go out, she was pulled back by He Meiying. Are you going to go out like this? What if? The former glanced down to make sure that he had not missed anything. He Meiying didn''t bother to talk nonsense. She directly pulled her aside, pressed her on a chair, and then dug out the makeup box from her luggage. Just sit here and dont move. An hour later. ??When the doorbell of Chang Haonan''s room rang, he was summarizing his somewhat detailed thoughts on a piece of paper. In the nearly ten years from the mid-1990s to the beginning of the 21st century, China''s military construction has gone through many detours. The reasons are naturally very complicated, including simple technical problems, too unrealistic ideas of Party A users, various obstructions and sabotages from internal and external enemies, and even various coincidences. Therefore, not everything can be leveraged by Chang Haonan. He needs to promote and use his influence as efficiently as possible. There is only some finishing work left in the 83rd Project. The subsequent projects, including the 10th and 11th projects, will probably be much larger and cover many more areas. Due to the existence of the system, he does not have to invest all his time and energy in one direction, but can run in multiple threads. ??But the human brain is not a computer after all, and even if it is a computer, multi-core optimization also tests the level of the software. For example, in the works of a Swedish game company, there are many cases where one core is difficult to use and seven cores are difficult to watch. So he needs to roughly divide the projects he can think of into several priorities - First of all, it must be the third generation of aviation power, which is the turbofan 10 engine. As the heart of an aircraft, the aviation engine can be said to be the foundation of an aircraft model. Not to mention that a good third-generation engine core can also expand into a complete steam turbine family. ?However, although the Taihang project was established in 1987, it was still basically in a state of uncertainty by 1996. The overall design plan had been changed and revised but was not finalized, let alone the application of various new technologies later. This is an absolute problem. Even with the help of the system, it cannot be solved by changing the compressor design in half a month. The second step should be the production of large-sized structural parts for aircraft, that is, heavy-duty die forging presses. Su-27s titanium alloy frame is made of two parts that are forged and formed separately and then welded together. ??But on the one hand, titanium alloy welding is inherently difficult, and on the other hand, the production efficiency and yield rate are far inferior to direct integrated forging. The titanium alloy structural parts of later J-20s are made in this way, so it is better to get used to it first. ??Moreover, if we really plan to completely open up the production line of 100-ton mainline passenger aircraft starting from rough materials, this will be an unavoidable technical threshold. It is a big job, and it is a big job in the physical sense. Even if the design drawings are taken out, it will be difficult to implement it in less than a year or two. These two projects are predictably long-term, so if you have the opportunity, start as soon as possible. The development of airborne weapons must be considered and put on the agenda, and the freedom of medium-range missiles cannot be achieved after 2010 as in the previous life. ?There are also helicopters, both the army and the navy have huge gaps. The Z-8 cannot be used unless it is torn down and started over, and the Z-9 is too small and has insufficient potential... There is also an urgent need for large transport aircraft, but with the current strength of Chinas aviation industry, it is indeed unrealistic to build a 200-ton strategic transport aircraft in a short period of time. So you can first consider taking out some chips and get some IL-76s from the Tashkent factory, which can also be used as early warning aircraft and tanker platforms. The funds saved by Project 11, including the money saved from buying Su-30MKK in the future, should be sufficient. ??If you want Maozi to stop working as a foreigner, you must have a little father (such as a loving father) or a little mother (such as Ye Er) who can whip him from behind. In addition, since we have a good special machine platform, corresponding models must also be arranged. But there is no technical reserve in these areas. The real starting point for China''s special aircraft should be the 8J maritime surveillance aircraft, which will not enter service until two years later. The airborne equipment is still imported from the United Kingdom. Relatively speaking, among Western countries, the United Kingdom and Germany are two relatively good partners, and they are much more reliable than the others. But no matter what, Britain and the United States are a conjugated father and son, and the effect of using British radar to deal with American threats can be imagined. In short, after conducting a systematic analysis, we can only say that there is a lot of room for progress in China''s industry. ?Thinking about it this way, it is simply a miracle that the J-20 can take flight in 15 years. ?Because he was too focused on the analysis just now, the doorbell rang several times in a row before Chang Haonan woke up from the brainstorm. ??When he opened the door and saw Yao Mengna at the door, he was still thinking about anti-submarine aircraft and electronic warfare aircraft. The brain switching process takes time. But this moment of sluggishness changed its meaning in the eyes of the latter. Thank you, Sister He ?Yao Mengna secretly thanked He Meiying for his help just now, and waved her hand in front of the other person''s eyes. At this time, Chang Haonan also came to his senses. Senior, do you have something to do with me? Lets go have dinner together. ?Yao Mengna learned her lesson this time and went straight to the point without even using questions. According to He Meiying, since the other party likes to be passive, then simply dont give him a chance to choose. Thats fine, I just saw a good restaurant on the first floor of the hotel, so Ill go there. Although Xiangzhou, especially near the airport area, has been eager to prepare for the opening of the air show, it is no better than twenty years later. ?It''s already around five o''clock now, and it will definitely be dark by the time we have dinner. It''s somewhat dangerous to walk outside in an unfamiliar place. The first floor of the hotel ?Yao Mengna hesitated for a moment. She has visited that restaurant. There are no single rooms, only a lobby, and the environment is quite noisy. It is actually a little different from the "date" scene in her dream. But she thought about it and felt that her junior brother looked at her straight when he opened the door just now, which means that the wood has finally opened up. So if there is a first time, dont worry about the second or third time in the future. The hall will be the hall... So he chose to nod in agreement. But soon she felt a little regretful. Because Chang Haonan''s attention didn''t seem to be on her. In 1996, China could hardly be called an aviation power, but at least it could be considered an aviation power. Especially in terms of demonstrated potential. ?Hence, this first Xiangzhou Airshow naturally received a lot of attention. Some people are looking forward to further opening up this market that has not yet been fully developed, while others are looking forward to seeing the hope of the aviation industry taking off at this air show. ?Two people, an old man and a young man, carrying professional photography equipment and looking like journalists, were sitting in another seat near Chang Haonan and Yao Mengna. Brother Liu, your article was quietly published in todays newspaper before the air show started. Its quite positive. "It''s a warm-up. As journalists, we must dare to make judgments. Moreover, this air show has attracted a lot of attention. Even the sales of newspapers have skyrocketed in the past few days. The editor-in-chief also said that more prints will be printed. This is all performance. ah." The older reporter replied with a look of imparting life lessons. "Brother Liu, I read the analysis you wrote and said that our country''s new aircraft may be unveiled at the air show. How do you know this? I see that in the information provided by the exhibition, there is only one J-8IIM and one J-7MG? " The young voice just now continued to ask. Hey, how can I, an ordinary person with an average head, know this? Its all based on analysis. Hearing this, Chang Haonan''s expression became a bit astonished. The J-8Cs participation in the exhibition was a temporary decision. At that time, the promotional materials had been almost completed, and it was obviously unrealistic to recreate it, so the exhibition organizers proposed to treat it as a surprise. Chang Haonan thought for a while and felt that since the J-20 debuted at the 2016 air show with his face half covered while holding the lute in one hand, it seems that it is not unreasonable for me to plagiarize the wisdom of future generations, so he directly talked to Yang Fenghao and The exhibition organizers discussed and designed a more stunning and sudden appearance method. So even though the J-8Cs participation in the air show was not kept secret, few people should know about it. ??It would be pretty cool if someone could analyze it through some clues. At this time, the reporter known as Brother Liu spoke again, but his voice was much softer than before. If Chang Haonan hadn''t had extraordinary hearing, it would have been difficult to hear clearly: Analysis, you have to grasp the key contradictions. The point is not what is at the air show, but you have to figure out what people who buy newspapers want to see. "Because of what happened at the beginning of this year, everyone in China who pays attention to this air show is hoping to come up with something to cheer up. At this time, you have to do what you want. If you bite the bullet, there will definitely be a new aircraft as a surprise. The more mysterious the statement, the better. Its a prediction anyway, so what if its wrong? "That" Such an answer was obviously completely unexpected by the young man sitting opposite him: So now so many people believe that there will be a new plane, if it doesnt happen by then, wouldnt everyone be very disappointed or feel like theyve been cheated? Brother Liu curled his lips and said in a nonchalant tone: "So what if you are disappointed? Let me tell you, if that situation really happens, others will only think that the people who built the airplane are not living up to expectations. It has nothing to do with our newspaper. The real deal is to earn the sales volume during the past few days during the exhibition." of" ?Chang Haonan suddenly felt that the expression on his face at this time should be very exciting. (End of this chapter) Chapter 135 Gorgeous appearance (additional update for flankerr’s reward) Chapter 135 A gorgeous appearance (additional update for flankerrs reward) ??When Chang Haonan returned his attention to Yao Mengna sitting opposite, he found that the latter''s mood seemed to be much lower than before. After thinking about it, he felt that it was probably because his senior sister also heard the conversation between the two reporters just now. ?For people who have never experienced the Internet era and have not seen the limits of these media, the words of the old reporter are indeed very uncomfortable. Therefore, Chang Haonan feels that as a man, he should take the initiative to find some topics that can make the other party happy: Senior sister, how do you think everyone will react during the flight show tomorrow afternoon? Yao Mengna used chopsticks to turn over the food on the plate in front of her, and she couldn''t help but think silently in her heart: "I chose it, I chose it..." ?This is how I finally maintained my dignity. But she actually didnt hear the second half of the conversation between the two people next to her. Since there have been newspaper reports, the audience should be looking forward to the appearance of the new aircraft itself. Since this topic has been discussed, Yao Mengna thought about it seriously for a while before replying: However, even if they can guess the aircraft model, they will never be able to guess its performance. Besides, there are other things in our exhibition area. ?Although there are also wall-climbing parties in this era, due to the speed of information transmission, the test flight status of the J-8C will not be known to too many people. "Indeed, these two people are quite right..." Chang Haonan shook his head helplessly. No matter what the starting point of the reporter surnamed Liu was, he really encountered it. On the opening day of the air show, Chang Haonan got up early and arrived at the main venue at the International Air Show Center at dawn. As the host, the preparation time left for China Aviation Industry is longer after all. Unlike many exhibitors who arrived yesterday afternoon or even evening and need to set up their booths overnight, so he simply took advantage of the fact that there were not many people. Walked around the venue. Since the main body of China''s export of air force weapons and equipment is China Aviation Technology Import and Export Co., Ltd., the aviation industry group personnel who came to the exhibition this time, no matter which research institute or manufacturing plant they belong to, all claim to the outside world that they are personnel of the aviation technology company. , including indoor exhibition halls and outdoor exhibition areas, are also arranged together. The Xiangzhou Air Show is not the first air show in China, but it is the first air show in China that arranges actual displays and flight performances. It is completely different from the Beijing Air Show, which only has an indoor part and is nicknamed the "model show". Not on the same level. Hence, all factories in the aviation industry have basically come up with their own products. In addition to the J-8IIM of 601, Hongdu Institute of 650 brought Qiang 5M attack aircraft and K8 trainer aircraft, Bingcheng Institute of 602 brought Z-9 helicopters, and Rongcheng Institute of 611 brought J-7MG... ?Even Chang Haonan saw something in the outdoor exhibition area that was definitely not exhibited in the original timeline Prototype No. 02 of MA-60. In fact, let alone participating in the exhibition, there was no such aircraft in the previous life. Whats even more exaggerated is that the display panel in front of this aircraft even has the logos of China Aviation Industry and Italys AgustaWestland printed on it Obviously, after replacing with a new wing design and gaining core competitiveness focusing on fuel efficiency, this regional passenger aircraft project is progressing quite smoothly. At the most conspicuous place in the aviation industry exhibition area, which is also closest to the runway of Xiangzhou Airport, there is still an empty space. There is a slender cylindrical object covered by a rainproof cloth next to the empty seat, and the display board in front is also covered with thick white paper. ?This is of course prepared for the J-8C that has not yet appeared. As for the foreign exhibitors, Chang Haonan also found some differences. ? Its still AgustaWestland. They brought two general-purpose helicopters, the A109 and A119. The latter even just completed its first flight last year, which is considered its first public appearance. It is enough to see that they attach great importance to it. You should know that the current Xiangzhou Air Show is not as good as it will be in the future. Although it has received a lot of attention, foreign countries, especially Western countries, mainly just watch the show, and the exhibits they bring are mainly models. ?Even some Western media stated very bluntly in their reports that the historical value of the Xiangzhou Air Show is higher than the commercial and technical value The meaning is very clear. The air show held by China is just the same as ours 20 or 30 years ago. It looks like a cultural relics exhibition. Similar ridicules in the previous life continued even into the first decade of the new century. Wandering around, when Chang Haonan returned to the exhibition area belonging to the aviation industry, the sky was already bright, and staff from other research institutes had also arrived one after another. There are even many acquaintances of Chang Haonan among them. For example, Lu Yuying from the 611 Institute and Yi Yuanhe from the 606 Institute. ?But now is not a good time for small talk. Because there have been more reporters and exhibitors coming from Haojiang, as well as tourists coming from Xiangzhou City and even surrounding cities. Even though Chang Haonan knew the appeal of the Xiangzhou Air Show, the scene in front of him far exceeded his imagination. In fact, it far exceeded the imagination of the air show organizers. In order to cope with this air show, Xiangzhou specially built a new two-way six-lane highway. It is said that the locals scolded it for a long time and thought it was impossible to use it. ?However, the road is now almost impassable with vehicles coming and going. Until almost noon, many people are still stuck on the road and unable to enter the venue. Not only that, there are no fences around most of the aircraft on display, because the original plan was to rely on staff to maintain order. There was no official food and water for sale on site, and there was not even a rest area with seats in the huge venue... In short, despite several years of preparation, the first Xiangzhou Air Show still opened in such a somewhat chaotic scene. Not surprisingly, Chang Haonan could hear the complaints from the tourists around him even though he was at the backstage of the staff. Also because of the "warm-up" by media people including but not limited to Lao Liu, most people''s expectations for this air show are already full, even though the two Flankers are parked in a very conspicuous position near the airport runway. , but most visitors who come to visit will still rush to the Chinese exhibition area first after entering. As a result, it can be seen at a glance that there seems to be nothing that can be called a "surprise" in the venue. The only relatively new one is the J-8IIM, but anyone who often pays attention to air force equipment has already known about it, and has even seen this aircraft in magazines and reports. What In the crowd, a young man with a camera hanging around his neck curled his lips in dissatisfaction. He took a leave of absence from school after seeing the article in the newspaper. ??Even spent a lot of money to stay in the hotel closest to the air show center. After arriving at the scene, my enthusiasm was as if a bucket of ice water had been poured down my head, completely dampening my enthusiasm. Where are the new planes ?However, even though he was here, he still took a few photos without interest, and then prepared to go to the Russian exhibitors exhibition area next door. I only brought two rolls of film in total, so I cant waste it on these things. The young man shook his head while talking to himself. ?However, the moment he turned around, a sharp roar that became increasingly louder suddenly came from the air behind him. He turned around and saw only a slender fighter jet slowly growing in size in his field of vision. ?While passing over the venue, the plane made a special swing from side to side, as if to say hello to the crowd on the ground. ??It was also through this action that some sharp-eyed people saw the eye-catching red fonts printed on the side of the cabin. J-8C. (End of this chapter) Chapter 136 J-8C, aerial performance Chapter 136 J-8C, aerial performance ?This is exactly how Chang Haonan arranged for the J-8C to appear after coordinating with the exhibition party. Like the J-20 at the 2016 air show, it did not land at Xiangzhou Airport before the air show, nor did it make any announcement. Instead, it waited until the opening ceremony was over and flew directly over to start the performance! After the performance, the plane will land on the runway of Xiangzhou Airport, and then, under the eyes of tens of thousands of spectators, it will be transferred from the runway area by a tractor to the space reserved in advance in the exhibition area. For the air show organizers, such an unusual appearance is definitely a big test. But its definitely a highlight! So, after careful consideration and consultation with Xiangzhous superiors, Zhan finally agreed to this seemingly crazy plan. Under the control of Fu Guoxiang, prototype No. 04 flew over Xiangzhou Airport at a speed of slightly more than 250km/h. This is a very slow speed for a second-generation aircraft, so the slightly harsh scream of the turbojet engine lasted for a long time before gradually fading away. But for the audience at the scene, the sound was so beautiful! I seem to have seen...J-8C on the side of the plane just now? There were people nearby who were not sure about what they saw. Mainly no one expected that the so-called "new aircraft" would appear in front of everyone in such a way. J-8C, should it be an aircraft built in the August 3rd Project? After the Air Forces naming method was changed, letters instead of numbers were used to distinguish different sub-models. This aircraft can actually come to the exhibition? I remember that this summer, there was news from Haojing that a second-class accident had occurred, which should have happened to the J-83. It was only three months ago. In this era when the threshold for obtaining information is relatively high, many people in the military fan community are a little wild. ?Although there may not be channels to obtain completely true information, a lot of things can indeed be analyzed and inferred through some small traces. Coupled with the fact that he spoke so eloquently, many people around him did believe him. What the hell? Is there still such a thing? Then there wont be any problems with this plane, right? ??The person who just spoke instantly became the focus of attention in a small area, which made him feel like he was being praised by the stars. ?At this time, I have to say something more: I dont know. The previous second-class accident was said to be an engine failure. Let me tell you, this aero engine is a long-standing problem for China..." ??The young man holding the camera in his hand frowned slightly. He was just looking up at the new plane that suddenly appeared. When he remembered to open the lens cover and lift the camera, he could only take a picture of the plane''s anus, which made him a little unhappy. Secondly, the half-full bottle of water next to him who kept chattering away made him feel a little noisy. ?The man was still talking to the people around him: "I''m not talking nonsense. When I copied the J-7, because my relationship with Lao Maozi broke down, I didn''t get all the technical information. The copied turbojet 7 and the improved turbojet 13 had a lot of problems. Just two days ago. What happened is that Hainan Airlines in Qiong Province crashed two J-8Bs at once due to engine failure, which is definitely a high accident rate. " The turbojet 14 on the J-8C borrows a lot of the design of the turbojet 13, and it feels... not very reliable. What he said was so mysterious that it was difficult to tell whether it was true or not. Many people know about the accident at Lingshui Airport a few days ago, but not many details have been leaked out, so being fooled by him, coupled with the embellishing of the news by the people around him, is like the airplane that just performed. It really looks like it could crash at any time... ? ? ? "Stop talking nonsense!" The young man finally couldn''t bear it anymore and retorted loudly to those around him: Dont you all watch the news? A week ago, the Xinwen Broadcast broadcast a special feature on Institute 601. There were many test flight scenes in it, indicating that the problem with this aircraft should have been solved by that time. Are you...Teacher Xi Boyang? What he didnt expect was that someone in the crowd actually recognized his identity. I have read your work and interview in Aviation Knowledge Magazine. Obviously, this is a fan of his. In fact, although Xi Boyang is only a college student who has not yet graduated, he has been contributing articles to major military magazines for two or three years thanks to his good photography skills and, of course, the equipment and travel support provided by the factory directors father. Many classic photography works were created by him. ?The other party was slapped directly in the face, and naturally he couldn''t lose face. But just when he was about to open his mouth to refute, the familiar roar sounded again. Everyones eyes turned to the sky again. ?That J-8C is back. ?Obviously, the low-altitude pass just now was just the appetizer, and now is the main meal. The aircraft performed a crisp 450 roll flight almost directly above the runway of Xiangzhou Airport, and then connected to an extremely tight small-radius circle in a horizontal space. The smooth flight attracted bursts of cheers from the audience on the ground. . Since the large delta-wing aircraft itself has a small moment of inertia, and the flap part that provides the rolling moment has been specially redesigned by Chang Haonan, the improved J-8C has a huge improvement in roll rate. As for the stability of the aircraft, it is related to the thrust-to-weight ratio and lift coefficient. It has also benefited a lot from the two major changes in the past few months. Although this is still a relatively weak part of the performance, for the audience of the air show, the scene that just happened was already very shocking. ? People at the scene have more or less seen the J-6 of the aerobatic team perform similar actions, but the size of the J-8C is almost three times the size of the former, and it is naturally not at the same level in terms of momentum. ? And someone like Xi Boyang, who is a little more professional, can even see some clues while pressing the shutter frantically at the sky. ??? Taking advantage of the slight reduction in engine sound, he excitedly analyzed the people around him: Look, this plane didnt even lose altitude when doing this set of maneuvers, which shows that the power level is quite good! Ive seen the old J-8 fly before. It doesnt roll so fast at all, and it loses altitude very badly when circling. After half a circle, it has to change to level flight and climb. In this era of print media, Xi Boyang''s name appears frequently in major military magazines, and he is still relatively well-known. In addition, the flight performance just confirmed this judgment, so more and more people began to believe his statement. As for the other person who was still talking nonsense before, when the J-8C just flew back, he had already disappeared into the crowd. (End of this chapter) Chapter 137 Amazing skills Chapter 137 Shocking the Four People with Skills Due to a real lack of experience in organizing such a large-scale exhibition, the exhibition organizers did not arrange any explainers in the huge venue. They relied entirely on paper materials produced by exhibitors and the knowledge reserves of the visitors themselves. But military fans are not the only ones who come to visit the air show. ??Some are organized collectively by work units, others live nearby and come to join in the fun, and there are also reporters like Lao Liu who need to travel to collect materials for work, etc. ??If these people don''t explain it, they can basically just watch the fun. So the crowd around Xi Boyang became more and more dense, and even quickly formed a quite obvious gathering area. ?However, the main purpose of his trip is still photography, and the engine noise when the plane takes off makes it impossible to hear other things. ?? So after the J-8C completed the circling action just now, Xi Boyang raised the camera again and rotated the zoom ring on the lens at the same time. In the era of film cameras, the photographer could not check the shooting results in real time, but based on past experience, he knew that he should have obtained several good panoramic photos, and the next step was to shoot some details. This time, the No. 04 prototype was obviously accelerating as it flew over. It is not often that you have your head shaved by a fighter jet flying at a height of less than 100 meters. Therefore, the J-8C, which rushed towards the venue like a tiger descending from a mountain, gave the audience a great sense of oppression. Many people even held their breath subconsciously. ?However, experienced people like Xi Boyang know that it is impossible for the performance plane to really fly over the convention and exhibition center. The crowds here are too dense, and if an accident occurs, the consequences will be immeasurable. I just dont know how this plane will change its flight path? ?His right index finger gently rested on the shutter. As if to answer the question in Xi Boyang''s mind, Prototype No. 04 suddenly made a lever movement, and the attitude of the entire aircraft changed from horizontal flight to vertical upward almost instantly. At the same time, the roar of the two engines became more and more deafening. People can even see the high-temperature gas behind the tail nozzle of the aircraft, as well as circles of dazzling Mach rings. Are you going to make...a cobra? ??When the attitude of the aircraft changed, many people immediately thought of this super maneuver named by Pugachev. But as a second-generation aircraft, this seems a bit outrageous. No, its not super maneuvering, this is a single-plane climb at a high elevation angle! And the plane is still accelerating! ? Xi Boyangs voice was completely drowned out by the roar of the engine and the cheers around him. But the plane was still accelerating while flying vertically upward, which everyone could see. Not everyone understands what this means In fact, before this, the Chinese Air Force had not equipped an aircraft with an actual thrust-to-weight ratio exceeding 1. The paper thrust-to-weight ratio of the specially improved J-6 aircraft can be close to 1, but in order for an aircraft to fly into the sky, it must be equipped with a pilot and aviation fuel, so the actual thrust-to-weight ratio is lower. The first mass-produced fighter jet capable of accelerating in vertical climb should be the F15. The single-seat versions of the F16, MiG-29 and Su-27 can also do this. As a "quasi" third-generation fighter, the Mirage 2000 is not good at power. The Harrier fighter''s vertical takeoff and landing relies on ground reflection airflow, and its thrust-to-weight ratio in flight has not exceeded 1. So, behind those four third-generation aircraft...it seems to be this J-8C. However, even if you dont know the twists and turns, it doesnt matter. This large-angle climb followed by a 360 rotation on a vertical plane is visually shocking enough, and it is actually an important part of the era of machine gun combat. tactics. If the pilot is not absolutely confident in the performance of the aircraft, the pilot will not complete such a maneuver at low altitude. Here I go, the climb rate of this plane just now... was a bit exaggerated. ??The first person to recognize Zi Boyang''s identity just now held a telescope in his hand and couldn''t help but sigh. The other person next to me seemed to know more. "Not only the climb rate, but also the wing surface response of this aircraft is very agile. It is not at the same level as the J-7 and J-8 I have seen before." There is also the engine. From the beginning of the performance to now, even just through the sound, you can hear that the aircrafts engine thrust has been changing. Such frequent changes in the throttle valve position indicate that the reliability of the power is very high. Then the person who first said there was a second-class accident in Haojing was all nonsense? Probably, otherwise it has only been three months from August to now, and it would be difficult to even complete the fault analysis, let alone improve the engine... ?While these two people were discussing each other, Xi Boyang had already used up his first roll of film. While he opened the film compartment as quickly as possible, took out a new film from the bag and put it in, he recalled the details he had just seen through the lens. ?After changing the film, he immediately adjusted the optical zoom ratio in a targeted manner, focusing on a few parts that he had not seen clearly just now. Sure enough The wing of this aircraft is different from the old J-8B! It uses leading edge slats! The engine...there is no visible change in the engine, but the part connecting the fuselage and the tail nozzle is also different from before. In the gap between the two performances, Xi Boyang''s voice was transmitted to the ears of the people around him. This aircraft...is very different from the previous J-8B, and it has nothing to do with Grumman! This is... completely our own, a new plane! When Xi Boyang finally calmed down, he realized that the film he had planned to use for the day had been taken in just ten minutes. Just when he lowered his head and regretted his impulse just now, and was thinking about whether to break through the crowd and go back to the hotel room to get new film, there was some commotion in the direction of the air show center near the airport. ?Due to the dark crowd, Xi Boyang couldn''t see clearly what was happening over there for a while. But the cheers of the crowd soon gave the answer. ??The J-8C just landed on the runway of Xiangzhou Airport after the flight show! Xi Boyang suddenly remembered that he had just seen a somewhat unexpected open space in the exhibition area of ??China Aviation Industry. Obviously, this has been arranged long ago. Just as he speculated, soon, a trailer towed the No. 04 prototype that had just landed away from the end of the runway. The on-site security personnel pulled up two human walls, allowing the tractor and the aircraft to pass through the middle, and finally stopped at the empty space. ?Two staff members wearing the uniforms of China Aviation Technology Corporation appeared immediately and tore open the stuck part of the sign in front. ? Xi Boyang, who had already taken a good position, was the first to see the big words written on the first line of the display board J-8C fighter jet and the turbojet 14 engine it uses. "Um?" This way of writing obviously means that the exhibit is not just one aircraft. He raised his head again, and then noticed something tightly wrapped next to him. The two people just walked over and lifted up the rainproof cloth on the surface. An aeroengine was presented in front of everyone. line (End of this chapter) Chapter 138 Chain reaction caused by turbojet 14 (Part 1) Chapter 138 The chain reaction caused by turbojet 14 (Part 1) In fact, this is not the new turbojet 14 actually installed on the No. 04 prototype, but an old engine put on a new casing. Specially designed to be displayed at air shows for people to see. ??Its not that Im afraid of leaksafter all, you cant see what the core structures of the high-pressure compressor and turbine look like from the outside. ??Moreover, if aviation design can be copied at a casual glance, then Chang Haonan may not get the chance to show off his skills from the beginning. Our country has a physical version of the Soviet Union''s last turbojet R29-300. The initial target of the J-10 was to imitate the turbojet 15. If it was so easy to copy, it would have been copied a long time ago. ?Mainly because Factory 410 has built a total of 6 new engines so far, all of which are installed on three prototypes... Its just that except for a few people such as Chang Haonan, no one knows this secret. So, when the "true face" of the Turbojet 14 was revealed from under the rainproof cloth, there was still a sound of admiration or cheers all around. In the 1990s, it was not very common to display a real aircraft engine like this even at foreign air shows. This is an unprecedented first time in China. ? It is even the first time for many people to see what a single axial flow turbojet engine looks like. ?Looking at the densely packed and complex pipelines on the surface of the casing, as well as the neatly arranged layers of low-pressure compressor blades, everyone''s feeling was basically an unknown feeling. ?Although I cant understand it, its so complicated, so precise, and I love it In short, if there were not security personnel with live ammunition watching, I am afraid someone would have rushed up to hug and lick me on the spot. As a decent person, Xi Boyang did not keep staring at the Taiwan Airlines, but quickly paid attention to the specific content on the display board. Then, he showed a shocked expression of "Are you kidding me?" The maximum afterburner thrust is 7500kg, the intermediate thrust is 4930kg The total boost ratio is greater than 18? The total engine weight is less than 1100kg? The first turning period is not less than 150h? Holy shitis this data serious? Why did I remember that I said before that the design target of the turbojet 14 was only 7 tons of thrust? ??If mood can be embodied through symbols, Xi Boyang feels that his head should be full of question marks now. Teacher Xi, this data is... very impressive? ?Someone next to me couldn''t help but ask. After all, not everyone understands aviation power so deeply. More than awesome Xi Boyang subconsciously wanted to lift the camera, but then remembered that the film had run out, so he had no choice but to put it down again, and explained to the person next to him: If you dont look at the inherent shortcomings of turbojet engines such as fuel consumption and lifespan, the performance is almost the same as the F404 turbofan engine newly developed by the Americans in the 1980s. ?After his comparison, more people can understand. F404is the one used on F18? Thats right. So if you calculate it this way, the performance of this J-8C is about the same as that of the F18? Thats not an analogybut in short, in terms of aviation development level, it is not an exaggeration to say that it has jumped 20 years compared to the past. Not far from Xi Boyang, two people with media badges were looking at the fighter jet that had just stopped in front of them with complicated expressions. Brother Liu, I knew you were joking with me last night, so No, I didnt ?Brother Liu really wanted to say that I was really just guessing, and I had no intention of hiding anything. But even he himself found it unconvincing. Forget it, dont be stunned, hurry up and take pictures, I will teach you how to write a manuscript when you get back. By the way, remember to check the condition of the American F18. I thought I heard someone say it is similar to this. Since most tourists were crowded near the China Aviation Industry exhibition area, and more people were still stuck on the road, other parts of the venue seemed a bit deserted. In the Russian exhibitor''s exhibition hall, a tall, slender, gray-haired middle-aged man looked at the dense crowd not far away and asked the people next to him: The plane that was performing the flight just now is the new model that Artyom and the others reported before, right? It is Mikhail Pogosyan who is gradually taking over the baton of Sukhoi Company. Yes, they named it J-8C. It sounds like it is an improved version of a simple enlarged version of the MiG-21. No, Alyosha, there is no trace of the MiG-21 on that plane. Pogosian shook his head: As for the naming... I think its just a cover-up during the research and development process, just like our original Figure 22M. You mean they are trying to deceive Americans? There is no technical connection between Figure 22M and Figure 22. The name was changed just to avoid treaty restrictions. ?Obviously, in Bogosian''s opinion, this aircraft called J-8C is probably similar. "I can''t say for sure, but I know that about ten years ago, the Chinese were tricked by the Americans on this plane before they came to find us." Pogosian shrugged. ? ?The man called Alyosha is actually named Alexei Bulatov. He is not actually Sukhoi Company, but a senior engineer of the Rulika Design Bureau. ?He lowered his head and hesitated for a moment, as if he was recalling the flight performance just now: Misha, after our performance is over, I plan to go to the Chinese exhibition area to take a look. The vertical maneuverability of the aircraft just now, especially the climb rate, is very good. I think it is at least better than the MiG-23ML. It may be due to the replacement of new power. The turbojet 13 that China has widely used in the past is still essentially an improved version of the R11F-300. Although Bulatov is a senior engineer at Ryulika, he does not know much about the products of his peer and competitor Tumansky Design Bureau. Strange, it is clear where the limits of this engine are. Hmmnew aircraft, new engines, why have they suddenly become enlightened in the past year ?Pogosian rubbed his brow in confusion: "It seems that Mikhail Petrovich is right. Fortunately, we did not delay it any longer. After the funds are in place, the new Su-27 improved version must be put on the agenda." Compared to this, I think finding new customers is the most important thing. Judging from Chinas development speed, they may not buy complete machines from you soon. ??Bratov takes a longer-term view. You are right, but fortunately not all countries are like them... ??? Or Im adding more updates for flankerrs reward. ???????????????????????? (End of this chapter) Chapter 139 Chain reaction caused by turbojet 14 (middle) Chapter 139 The chain reaction caused by turbojet 14 (Part 2) The stunning appearance of the J-8C undoubtedly gave the first Xiangzhou Airlines a good start. Coupled with the subsequent flight demonstrations of the J-7MG and two Flankers, the topic on the first day was immediately full. ?Especially because of Chang Haonan''s arrangement, the J-8C seemed to be even comparable to the Su-27 in terms of vertical maneuverability, which made almost all visitors to the exhibition extremely excited. ??Even not that many people paid attention to the traffic jam that lasted until three o''clock that afternoon. ??The entire China Aviation Industry exhibition area was crowded with people because of this, and the momentum was not inferior to that of Sukhoi. ? Even "regular" exhibits such as Qiang 5M, JJ 7 and Zhi 9 have also received many opportunities to appear on the scene. In short, he has a very long face. When the exhibition was closed in the evening, Chang Haonan noticed that the corners of the air show directors lips were grinning almost to the base of his ears. This is a real political achievement! ??Also smiling were the comrades in Chinese aviation technology. ?Although holding an air show has many considerations such as showing the level of the aviation industry to the outside world, boosting morale internally, and promoting the development of tourism, fundamentally speaking, it is still to make doing business more convenient. ? Under normal circumstances, a relatively large order cannot be decided on the spot like buying a car. The contract details can only be finalized after many rounds of negotiations. At best, an air show can be used as an official announcement opportunity. However, some small and medium-sized orders are still relatively random, and sometimes they are not much more advanced than shopping for clothes. ?At this time, the role of the signboard comes into play. ? And the J-8C that has attracted so much attention today is undoubtedly this brand. Even though most countries wouldnt really want to buy an interceptor in the mid-1990s, the J-8Cs flight performance was indeed spectacular. The performance of the two flankers at the back was equally impressive. So, the J-7MG that took off in the middle was also noticed by the exhibitors from many countries. 611 also put in the same effort into arranging the performance content. Since it is impossible to compare with the J-8C and Su-27 in terms of overall performance, lets focus on highlighting its agility as a light fighter. ??Anyway, really wealthy people are not the target customers of this aircraft. Based on similar logic, most people who look at the J-8C and J-7MG will also take a look at other models that are only arranged for ground display. ?Especially the Z-9 brought by Bingcheng, everyone can tell at a glance that it is a dolphin. Compared to the French''s habit of speaking loudly, China''s offer is much kinder. After some operations, several small countries have indeed expressed their intention to purchase, and some countries have even contacted China Aviation Technology Company through formal channels. After closing the exhibition, Chang Haonan first took someone to confirm the preservation of his exhibits, and then prepared to go back to his room to rest. He was also looking forward to how the news today would report the opening of the air show. But as soon as he reached the door of the hotel, he was stopped by people from the aviation technology company. The other party said that a buffet dinner had been arranged in the banquet hall on the top floor of the hotel. ?Chang Haonan originally wanted to refuse. Its not that Im dissatisfied with the format of the dinner, its mainly because its the first day of the air show, and theres always a feeling of opening champagne at half time ??But before he could figure out how to evade it, a woman who looked a little familiar to him stood up from the aviation department: I heard from General Master Lu, Chang Gong, you are still a doctor from Beijing Hang University, right? "Well" ?This question made Chang Haonan hesitate for a moment, but in the end he chose to answer truthfully: Actually, I have to wait until next year to start my PhD As a result, as expected, several other people on the other side received shocked expressions. The woman who just asked the question looked normal and continued to introduce herself: Let me meet you, my name is Yang Huimei, and I am also a graduate tutor at Beijing Hang University. Then he took the initiative to shake hands with Chang Haonan. Although the latter is still an undergraduate in theory, he obviously cannot be treated as an ordinary student. ?After hearing Yang Huimei''s name, Chang Haonan finally remembered that he should have seen her in the 624th Institute. ??Its just that I had been communicating with Lu Yuying at the time, so I didnt have any direct dealings with her. And he had heard this name before is Liu Chenchens chosen graduate tutor. It seems that this person does have a certain status in the field of industrial trade. It turns out to be Teacher Yang, hello, hello. Since Yang Huimei has already revealed her identity as a teacher in her school, Chang Haonan also knows that if she refuses again, it will seem a bit awkward: Teacher Yang, should I go back to the room and change clothes first, and then go to the banquet hall? ?Yang Huimei smiled and nodded: Of course, our arrangement is to start at half past seven. Then you can just go to the hotel staff with your work badge and they will take you in. In addition, please invite your office and other members of Factory 112 to come with you, so I wont notify you one by one. Her family understands her own affairs. After more than half a month of hard work, she is no longer the pure layman who could only distinguish the model of an airplane by its pointed or flat nose. Besides, the aviation technology company also sent specialized technical personnel. ?So Yang Huimei knows very well that todays wave of traffic was largely brought about by the flight show at the beginning. People from Shengjing must be invited. "no problem." ?Chang Haonan nodded. In this era where material conditions are not particularly rich, being invited to have dinner in such a high-end hotel banquet hall can be regarded as a benefit to a large extent, and most people will not refuse. Im relatively familiar with the people at Factory 112. Let me inform them. You just need to inform the comrades in the factory. After entering the elevator, Yao Mengna, who had been standing half a step behind Chang Haonan, suggested. ?It was also at this time that the former realized that there was no WeChat or DingTalk at this time, and he could only notify each room by knocking on the door or making a phone call. The workload was really quite large. There is no way. Although I have been reborn for several months, the subconscious mind of the previous ten years is still very strong and cannot be completely wiped out so easily. Thats a problem for you. When Chang Haonan returned to the room, it was almost 7 pm. He took a shower as quickly as possible and then turned on the TV. Today is Tuesday, November 5th, the 25th day of the ninth month of the lunar calendar. Welcome to the Xinwen Lianbo program. First of all, I will introduce you to the main content of todays program..." Dear viewers, todays Xinwen Lianbo program will take about 55 minutes Fortunately, I didnt miss the opening of Xinwen Lianbo. As he expected, the first news was the opening of the Xiangzhou Air Show. ?The first scene after cutting out of the studio is the J-8C performing a flight performance. Compared with the few inconsistent scenes in the previous 601 special program, this time, CCTV did not spare the camera at all. Except for the initial clearance and the final landing part, the flight show, which lasted for nearly 10 minutes, was released without any landing. He then took photos of the entire China Aviation Industry Exhibition Area and introduced the development process of the 83rd Project. In particular, it was emphasized that the J-8C that performed the flight performance today was completely designed by my country, fully adopted my country''s independent technology, and fully adopted my country''s aviation standards. Three perfections. The inner meaning is self-explanatory. (End of this chapter) Chapter 140 Chain reaction caused by turbojet 14 (Part 2) Chapter 140 The chain reaction caused by turbojet 14 (Part 2) ?Because he had read everything related to the Xiangzhou Air Show, Chang Haonan arrived at the banquet hall at almost half past seven. ?As a result, as soon as he walked to the door, he found that there was a bigger TV, and the news network was also playing on it... Obviously, everyone has the same idea as him. Especially the representatives of the air show organizer, the smiles on their faces could no longer be hidden. ?There are not many opportunities to listen to CCTV and brag about your own rainbow fart. What''s more, the blowing lasted nearly half an hour this time. I dont know if it was arranged in advance or what, but when Chang Haonan walked into the door of the banquet hall, the entire banquet hall gradually burst into applause. At first, only a few people took the lead, but soon other voices were completely drowned out. Chang Haonan was still a little embarrassed. This is not to be pretentious, I really rarely experience such a scene. Mainly at the 601 Institute, he basically attended technical meetings, and there was rarely such warm applause. After the applause subsided a little, Lu Yuying walked out of the crowd holding a half glass of champagne. "Comrade Xiao Chang, as well as other comrades present and participating in the August 3rd Project, congratulate you and thank your J-8C for successfully conducting this wonderful flight performance, which gave our Chinese aviation industry a sigh of relief and also won the Enough attention! After finishing speaking, he raised his glass to signal, and then drank it down in one gulp. Considering that this was only the first day of the air show, and there was still work to do later, this was the only round of toasting. ?Chang Haonan has a good capacity for drinking, but he doesnt like drinking, so he only drank half a glass, and then replaced it with white grape juice of a similar color. ?Shortly after the dinner officially started, Lu Yuying wandered next to Chang Haonan again: Xiao Chang, to be honest, this air show is thanks to your J-8C. If we go according to the original plan, we may be crushed by Lao Maozi at home. ?This kind of thing is the same as in sports competitions. No one wants to be completely defeated by others at home. ??The current situation, although it is difficult to say that it has defeated Sukhoi in reverse, it is like the national football team playing Brazil. If you don''t lose, you will win. So Lu Yuyings excitement is definitely justified. Its not just us, the J-7MG also performed very well, fully demonstrating the dexterity of the new aircraft. At this time of celebration, it is natural to compliment each other: Especially for countries that have used the old MiG-21 or J-7M before, it should be easy to see the performance improvement of this new aircraft. Chang Haonan is not completely bragging. In the original timeline, the J-7MG was the main model exported by China for a long time before Xiaolong. Yes, many old MiG-21 users are very interested in this model and even contacted comrades from the aviation technology company through official channels. ?Lu Yuying smiled and nodded: In addition, we also exhibited a scaled-down model of the J-7F this time, and many countries asked about the detailed performance, as well as the first flight and delivery schedule. You are also responsible for this. Has someone placed an order today? Chang Haonan asked somewhat unexpectedly. During the day, he spent half of his time fishing in the backstage of the exhibition, and the other half of his time pretending to be a tourist to visit the exhibition areas of other countries, so he did not pay much attention to the situation in the Chinese exhibition area. However, in the original timeline, the first Zhuhai Air Show did not achieve anything in terms of export sales. Strictly speaking not yet, but it will be soon. "According to my observation, Sri Lanka and Namibia should take action soon." As soon as Lu Yuying finished speaking, another person next to him also intervened: Namibia is indeed a promising customer, and their representatives also contacted us and expressed interest in the Z-9 and Y-12 models. Chang Haonan, who heard the voice, turned around and saw an unfamiliar face. ?But since he mentioned straight 9 and lucky 12, he must have come from Bingcheng. Li Xianzhe, deputy chief designer of the 602 Institute. ?The other party took the initiative to introduce himself, then put down the plate in his hand and continued: Originally, the Y-12 only brought a model to this air show, and the Z-9 was not scheduled to fly. We were all prepared to participate. Im also very grateful to you two for your performance, which finally brought us some potential customers. Chang Haonan also had some impressions after talking about this. As a young country that was only born in 1990, Namibia does not have a strong sense of presence. But it is also due to its late independence that its overall domestic situation is relatively stable. Relying on its rich mineral resources, its economic development is quite good in Africa. ??Lu Yuying and Li Xianzhe had no problem with their vision. Namibia later became a loyal user of Chinese weapons, and most of the main equipment of its army, navy and air force came from China. ?However, there is definitely no way to say these words directly, so Chang Haonan can only give a hint: "Actually, the potential markets in many third world countries are quite large, such as Namibia. I have read in books before that they have quite abundant reserves of jewelry-grade diamonds, as well as resources such as agate, copper and tin. It is a new country and has the need to build independent national defense capabilities. Li Xianzhe also nodded in agreement: Their representatives were indeed very targeted. They also asked us whether we have an armed helicopter developed based on the Z-9, one that has both combat capabilities and the ability to transport people. After chatting for a while about the export of weapons, Lu Yuying suddenly changed the subject: Speaking of this, I have always wanted to ask during the day, are the performance data of the Turbojet 14 on your exhibition board real? Are there any false standards? There must be a false mark...there must be one. Chang Haonan pondered for a moment: The thrust data of the engine is accurate, but the total boost ratio and first flip cycle are marked a little lower, and the weight is also written dozens of kilograms more. Oh, thats pretty good too "etc?" ?? Lu Yuying didnt react until he was halfway through speaking: Oh, reverse virtual mark, right? Ashamed. Chang Haonan showed a shy smile: It is essential to be on guard against others. After all, it is a public display, so some data should be written a little more conservatively. Lu Yuying, who finally recovered from the shock, was speechless. ?These days, everyone is eager to raise the data, but Chang Haonan directly did the reverse operation. ?However, even after the reverse virtual standard, according to the performance data on that exhibition board, the Turbojet 14 is definitely a very powerful medium-thrust turbojet. Damn it, let him pretend. Lu Yuying, who didnt know how to evaluate it, had to start talking about business again: How much do you think the performance can be improved if the turbojet 14 is installed on the J-7F? (End of this chapter) Chapter 141 When robbing people, you can’t use martial ethics Chapter 141: When robbing people, you cant use martial ethics As the design work of the J-7F comes to an end, the specific performance indicators of this aircraft are gradually being determined. Overall quite surprising. If I have to be critical, the only shortcoming is the power. The turbojet 13FII is indeed a usable model, but it is still somewhat unsightly when installed on the J-7F. On the one hand, the fuel consumption of the turbojet 13FII is relatively high, and a fuel tank in the original lower jaw part is occupied by the air inlet, which makes the already poor range even worse. ???The original J-7 is just a day fighter that relies heavily on ground guidance. Its short range is barely acceptable, and it cannot do without the search range of ground radar anyway. ??However, the improved J-7F has strong independent combat capabilities, but its short legs are more restrictive. On the other hand, with the sudden addition of fire control radar, a large power consumer, the power supply capacity of the engine has also become relatively tight. ? So after seeing the dreamy performance data of the Turbojet 14 during the day today, Lu Yuyings first thought was Got to find a way to fit it on my plane! The size and weight of the Turbojet 14 are smaller than those of the Turbojet 13, so there is no problem in installing it. Chang Haonan thought for a moment and then replied: "But the new engine has a larger flow rate and a boost ratio that has nearly doubled, so the original air inlet design may need to be adjusted. And because the weight of the rear part has become lighter by almost 100 kilograms, it will have to be redesigned. Adjust the center of gravity of the entire machine. "Hmm..." Lu Yuying lowered his head, flicked the goblet in his hand, and at the same time calculated the current project progress and the time points to be grasped in his mind: Its not difficult to adjust the center of gravity. After all, its getting lighter, not heavier. Just add some fuel to the tail. But according to the design method you proposed to integrate the air intake and the cone front body, if we want to change the design of the air intake, I am afraid that it will affect the whole body, and the workload will be huge. When we received the Pakistani delegation before, we had promised to complete the first flight before June next year. I am worried... Hearing this, Chang Haonan also frowned slightly. ?There are only eight months left, and even considering the production of prototypes, it doesnt seem to be particularly stressful. At what stage has the J-7F project progressed now? The design of the original plan has basically been completed, and a J-7B aircraft has been found to prepare for modification. It was originally expected to start at the end of this month. "That" ?Chang Haonan was about to speak, but was interrupted by Lu Yuying: "If it were just a general engine model change, there should be enough time, but after all, the core engines of the turbojet 14 and the turbojet 13 are completely different. Our 611 Institute has never been exposed to this model before and knows nothing about its air intake characteristics. I know. The matching of the engine and the intake duct is a quite complex issue. If you simply insert a new engine into it, the performance will be affected at best, and the failure rate of the engine will be greatly increased at worst. Of course, this is also related to the design level of the inlet and the stable working range of the engine. The more positive examples are MiG-23 and F16. The former can be matched with AL21 and R29-300 engines, and the latter can be matched with F100 and F110 engines. The typical example on the opposite side is the TF30 above the F14. The performance of this engine on the F111 fighter-bomber was not satisfactory, but after it was installed on the F14, it was disgusting. Coupled with the variable-sweep wing design with explosive reliability, there were only 632 F14s in service. The number of crashes in his career was as high as 144, making him the second-generation widowmaker after the F104. So Lu Yuyings concerns are not unreasonable. It would be great if there was someone who is familiar with both the turbojet 14 and the various aspects of the J-7Fs performance to help. After saying the last sentence, Chang Haonan finally understood. ?Good guy, were you waiting for me? What does it mean to be a person who is familiar with both the turbojet 14 and all aspects of the J-7Fs performance? ?Just give me your ID number and thats it. "Mr. Lu, your speech art is really superb." Chang Haonan''s tone made it difficult to tell whether he was really expressing his appreciation. Hey, Im not just talking nonsense. Lu Yuyings expression on the opposite side did not change. Ever since he failed to rob someone last time, he realized that when doing this kind of thing, being thick-skinned is king: In June, I went to see Lao Du, and he said that you had already started to participate in the August 3rd Project. After all, it had to be on a first-come, first-served basis, so we couldnt say anything else. But now, I think the August 3rd Project should be almost over... Obviously, he has figured it all out. In fact, this is exactly what Chang Haonan himself is considering. The first stage of Project 11 is that Factory 112 uses large parts produced by the Gagarin Aircraft Factory for final assembly of the aircraft, and Institute 601 translates and transforms the design data provided by the Sukhoi Design Bureau. This process does not require Chang Haonan''s help, so he is indeed planning to participate in the No. 10 Project after putting down the work related to the 83rd Project. Another reason is that due to problems with the underlying flight control architecture, the J-8C cannot, or does not have time to achieve integrated flight and thrust control. Its aircraft control and engine control are still performed separately. The J-10 has a real fly-by-wire flight control from the beginning, or a digital fly-by-wire. Although it has not yet realized the integration of flight thrust, it has the potential in this regard, and Chang Haonan has plenty of time. The J-7F project is obviously a good transitional step. It shouldnt be a problem for me to help. ?Chang Haonans decisiveness in agreeing surprised even Lu Yuying: As for the specific form of cooperation, it will be determined between 611 Institute and Academician Du. If nothing else happens, it should still be carried out in the form of project application. Then its settled. The two of them clinked their glasses. Li Xianzhe, who was left standing next to him, watched the whole process almost dumbfounded. ? After he learned that Chang Haonan was not an employee of 601 Institute, but a person from Beijing Hang University, it was not that he had not thought about asking him for help. But for one thing, Bingcheng really cant come up with any decent projects to attract people. ?The Y-12 is just an inconspicuous five-ton small transport aircraft, and the Y-9 has no clear follow-up modification plan. ?Even if there is one, it is unlikely to be a big project. Secondly, he didnt expect that someone would directly grab someone at the dinner party. Not decent at all. ?After Chang Haonan put down the wine glass in his hand, Li Xianzhe began to consider whether he should probe the other party''s tone first. ? He ??knows that Bingcheng has an ambitious 10-ton tri-service general-purpose helicopter plan. Although it can be said that the plan is not yet complete, it can still be used to draw pie. ??If the other party is interested, you can consider trying to get it after you go back. Hafei Automobile has been selling very well in the past two years, and there is still some idle funds... ??The more Li Xianzhe thought about it, the more he felt it was worth a try. ?However, when he turned his attention to Chang Haonan again, he found that there was another person standing in front of him. "ah?" (End of this chapter) Chapter 142 New frigate (Part 1) Chapter 142 New Frigate (Part 1) The appearance of Turbojet 14 as a separate exhibit during the air show was quite unexpected. Not to mention that it also provides quite detailed and exaggerated performance data. ? And the J-8Cs dazzling performance in the flight show can also prove from the side that the numbers on the display board are at least not completely fabricated. Therefore, in addition to aviation industry insiders like Lu Yuying, it has also attracted the attention of many comrades in other systems. ??Although the Xiangzhou Air Show has Aerospace Expo in its name, it may be to expand the audience, so the specific business of exhibitors is not strictly limited. ??? In short, many units that have nothing to do with aerospace have also sent people to help, and they all bear the name of aerospace technology group. This has created the miracle of the Aviation Technology Group not only selling aircraft, but also selling guns, artillery and tanks. ?Of course, as the Xiangzhou Air Show grew in scale, this situation became less and less common, and everyone put on their real vests and went out to do activities. ?The Shipbuilding Industry 701 Research Institute where Lin Qing works is one of the brother units that came to help. ??It is impossible for something like a naval ship, even the smallest speedboat, to be transported to the convention and exhibition center. In addition, they also knew that they were supporting actors, so they just brought a batch of models with rough workmanship and set up a few indoor booths without thinking about how they could really do any business here. As for the staff who came with them, they basically did whatever they wanted, except for taking turns leaving two people to watch the booth to prevent things from being stolen. ?So Lin Qing himself watched the entire J-8C flight show and witnessed the moment when the true face of the Turbojet 14 was revealed from under the rainproof cloth. But it is different from the other onlookers who are just watching the fun. ?At that moment, he felt that his trip was well worth it. Because in the past year or two, Lin Qing has been responsible for planning the technical route of the new generation of guided missile frigates After entering the 1990s, with the development of the national economy, military expenditures gradually became more abundant, and naval equipment procurement funds were no longer limited to buying a frigate a year as in the past. Naturally, there was some pursuit of new equipment. At that time, the navy''s latest frigate was the 053H2G, called the Jiangwei class by NATO. Although it was equipped with both anti-ship and anti-aircraft missiles, the configuration of 6 YJ-8A and 6 Hongqi 61 can only be said to solve some problems, especially in the rear. Its performance is unparalleled. As for anti-submarine Excuse me, what is anti-submarine? Moreover, this model is based on the 053H2 designed in the early 1980s, and the potential for further development is already very small. In the past two years, 701 Institute designed an export-type frigate for the Chinese Navy, which verified that the limit of this hull is basically 2400 tons, it is no longer possible to meet the future needs of the Navy. A completely new frigate design is imperative. From the very beginning, the technical plans for the new frigate were divided into two routes. The difference mainly lies in power and the choice of anti-aircraft weapons. ??One is to further enlarge the hull based on the 053H2G, continue to use the Pierstik 16PA6V series diesel engine as power, and the weapon system is directly copied from the 052 type destroyer, with a full load displacement of about 3800-4000 tons. The other is more thorough. It refers to the design plan provided by Russia to our country in the early 1990s. It uses gas turbines as power and 4 sets of "Long Glove" short-range air defense missiles (actually Sea-based Doyle) for point air defense, with a full load displacement. About 4200-4500 tons. It is almost at the same level as the Type 052 destroyer. ?Both designs have their own pros and cons. The technical risk of the first option is relatively low. Most of the systems on the ship are mature technologies that our country has mastered, but the combat effectiveness and development potential are relatively low. In particular, France refused to transfer the technical data of the Pierstik diesel engine STC system, resulting in the low power of the domestic 16PA6V-280-STC diesel engine, which is only equivalent to the 12PA6V-280-STC originally produced in France. Four units are needed to provide sufficient power. motivation. The second option is undoubtedly better in performance and has greater potential. Full combustion power can bring inherently lower noise and faster speed. It has inherent advantages in anti-submarine warfare. 4 groups of 8 vertical launchers The air defense system is also much more reliable than an 8-unit Haihongqi 7. However, as a price, full-combustion power is bound to be inferior to diesel engines with lower idle fuel consumption in terms of extreme range. Moreover, the 30 sets of land-based Tor M1 anti-aircraft missiles introduced by China last year have just begun to be delivered. In order to digest and absorb relevant technologies and then develop corresponding The sea-based version will take at least a few years, during which time it is likely that external procurement of weapon systems will be required. Generally speaking, Lin Qing, as a designer of Party B, still prefers the second option. ?Engineers naturally hope that the plans coming out of their hands will be perfect. However, the good times did not last long. Not long after these two designs were proposed, General Electric cut off the supply of LM2500 gas turbines. Even the original 113 ships were almost not built, and it was even less likely to come up with sufficient quantities for use. On the frigate. ?Almost at the same time, the aeroderivative fuel project based on Spey turbofan engine also came to an end. Originally I planned to walk on two legs, but now both legs are broken. The momentum for the gas turbine project was completely lost. ?Just before the Zhuhai Air Show, Lin Qing had almost given up on his original idea, prepared to choose a diesel power solution, and led his staff into the overall design stage. ??However, the turbojet 14 at the air show gave him hope again. During the day, Lin Qing had already asked insinuatingly that the team leader from Shengjing was the youngest-looking **** man named Chang Haonan. So after the dinner started, he came directly with a strong purpose. Comrade Chang Haonan? ?Seeing Chang Haonan end the conversation with Lu Yuying, Lin Qing hurriedly came to the former''s side. After all, he was asking for something from someone. Although the man in front of him seemed to be about the same age as his son, he still introduced himself in a very polite tone: Hello, I am Lin Qing, deputy chief engineer of the 701 Design Institute of Shipbuilding Industry. This is my ID and work badge. Uh...Hello, Comrade Lin Qing. Chang Haonan was a bit unresponsive to the overly formal speech, and he never expected to meet people from the shipbuilding industry system here: I dont know why you came to me... Oh, thats right, I saw the turbojet 14 engine you brought over during the day, so... I have a few questions that I dont know about, so why dont you ask me? Its not that Lin Qing just wanted to be arrogant. In fact, the question he wanted to ask was indeed a bit sensitive. If he didnt identify himself at the beginning, it would be difficult to continue the topic. ?Chang Haonan looked at the ID in front of him and verified the other party''s identity. He is indeed a big boss. Its okay, please. Also, just call me Xiao Chang. (End of this chapter) Chapter 143 New frigate (Part 2) Chapter 143 New Frigate (Part 2) This question may be a bit presumptuous, but is the design and manufacturing of the turbojet 14 completely completed domestically? Being polite as before, Lin Qing quickly returned to his straight-forward habit once he started discussing serious issues. The reason why Spey''s aero-engine modification is not going forward is ultimately because the Spey MK202 itself is a British engine. It will not do anything good to think about modifying the gas turbine before the aero-engine prototype is fully understood. result. If the design of the Turbojet 14 was entirely made by China''s own people, this problem would not exist. Of course. Chang Haonan nodded without hesitation: The original design of the compressor part was based on the R13F-300 and Spey MK202, but later it was discovered that the coordination between the high and low pressure compressors was very poor, and there were still hidden dangers after many modifications, so a comprehensive redesign was recently carried out. It has nothing to do with before. In fact, he has already been mentally prepared to face similar problems. On the one hand, this engine is indeed a bit exaggerated compared to Chinas past level of stumbling even in imitating aero engines. On the other hand, there are indeed many cases of using foreign designs and imported parts to make them domestically produced. In many cases, it is exposed when there is a problem with the product in the hands of users, or there is a sudden lack of parts supply after being sanctioned. There is no reason for Party A not to worry. In that case, is it possible to design a light ship gas turbine based on the turbojet 14-core engine? Lin Qing finally asked the question he wanted to know most. Aeronautical diversion is burning After talking about this, Chang Haonan finally realized that no wonder people from the Ship Research Institute were interested in aero-engines: Technically speaking, with the performance data of the turbojet 14, it should be no problem to change it to a power gas turbine of about 13 MW, but... I wonder if you can disclose your specific use? Chang Haonans understanding of naval equipment is mainly out of interest. In his impression, after the two Type 052 destroyers, the Navy seems to have not started construction of the next ship using gas turbines until the new century. ?Lin Qing hesitated for a moment. The two sides do not belong to the same system after all. ?However, considering that the confidentiality level of the other party should be sufficient, and if the turbojet 14 aero-derivative combustion plan is really to be adopted, there may be many opportunities for cooperation in the future, so I still speak truthfully: We are currently selecting a power source for the navys new generation of main battleships, and the ship installation target is a 4,000-ton frigate. After finishing speaking, perhaps because he was worried that this type of ship was not heavy enough, he drew another picture on the back: If the performance meets the requirements, destroyers with larger tonnage in the future may also use the same power. A 13-megawatt gas turbine is definitely not enough to be used on a destroyer. Im afraid 4 main engines would have to be piled on top of 6,000 tons. Chang Haonan replied with a smile: But if a 4,000-ton frigate uses a gas turbine, it should be about the same as the American Perry class? ?With his rich experience in pie-making and pie-eating in the past, he can naturally see that destroyers equipped with the same power are a big pie. But it doesnt matter. The 4,000-ton frigate obviously refers to 054/054A. Although he didn''t know much about the twists and turns in the development process of naval equipment, judging from the other party''s intention, this gas turbine solution should be the first choice. However, there was no reliable gas turbine model at this time in the previous life. That''s why it was switched to a diesel engine power solution. ? And more than 40 ships of this model had been built before his rebirth, so even if only this model is installed, there is absolutely no problem in terms of quantity. Lin Qing was not embarrassed after being exposed, and nodded simply: "Yes, the general idea is similar to Perry, a universal frigate that is relatively low-cost and can be built quickly." ? ? ? "But we may choose a larger aspect ratio than the Perry class, paying the price of some hull space. Higher speed. In that case, it shouldnt be a big problem. Chang Haonan briefly recalled the general data of the Perry class, and then answered very confidently: The Perry class has a displacement of 4,100 tons and is equipped with two low-power versions of LM2500, totaling 30 megawatts. Our two gas turbines can also reach approximately 26 megawatts. When paired with two diesel power generation auxiliary engines, the power is sufficient. Lin Qing''s eyes flashed with excitement. Although the young man in front of me seemed to be a bit too generous, after all, the turbojet 14 was already on display at the venue, and he seemed to have some understanding of marine power, so I really gave him one. An inexplicable sense of reliability. In this case, I wonder if you have any plans to carry out aviation modification and fuel injection? Or we can apply to the Shipbuilding Industry Corporation and conduct a public bidding. Now you should be the only one with this level of technology in the country. ??Now the new frigate program has reached a critical juncture, and it is about to decide on the specific technical route and enter the overall design stage. Generally speaking, after starting the overall design, there is no turning back. So Lin Qing was very anxious, very anxious. Even if Institute 606 cannot deliver a finished product immediately, he hopes that the other party can at least provide a sufficiently credible solution and relevant technical information, so that his client, the Naval Equipment Department, can believe in the feasibility of the gas turbine solution. Well...In fact, the 606th Institute has already begun work on aviation modification and combustion. Its just that the current improvement target is a gas turbine for power generation using natural gas as fuel, which is somewhat different from the power engine you need in terms of performance requirements and main combustion chamber structure. ? Similar to the situation in the previous life, after the installation and test flight of the Turbojet 14 came to an end, Yan Zhongcheng began to design the aeroderivative fuel plan. From the perspective of hindsight, this is actually a job he is better at. In the original timeline, the QD128 as an industrial gas turbine was far more successful than the turbojet 14 as an aeroengine. As for giving priority to power generation gas turbines rather than power gas turbines, this is basically industry inertia. Since about 20 years ago, our country has modified and produced industrial gas turbines such as WJ-6G, WP-6G and WZ-6G based on aero engines. They are used for self-generated power generation in oil fields, petrochemicals, posts and telecommunications and other departments. They are considered domestic gas turbines. Few market demands. In this era of serious fragmentation, as a person in the aviation system, Yan Zhongcheng did not know that Shipbuilding Industry was designing a gas turbine-powered frigate. Fortunately, Chang Haonan knows now. For Lin Qing, this was completely a surprise. So he immediately asked: If there are sufficient funds, Comrade Xiao Chang, can you estimate how long it will take to come up with a prototype that can be tested? (End of this chapter) Chapter 144 Possibility of aircraft modification (completed for flankerr’s additional updates) Chapter 144: The possibility of aviation modification (completed for flankerrs additional updates) Well...let me think about it. ?Chang Haonan did not immediately answer Lin Qings question. It is not difficult to modify a gas turbine for power generation under the premise of fully mastering the design of the core aircraft engine. Industrial gas turbines have almost no requirements on volume and weight, and natural gas in this era is very cheap. Most users are also large natural gas producers such as oil fields. The higher the fuel consumption, the higher the fuel consumption. Therefore, the performance trade-off is mainly based on power, compared with aero engines. orientation is very close. So while switching fuel from jet fuel to natural gas may seem like a big change, it actually requires only a few changes, namely those required to switch from liquid fuel to gas. But the power gas turbine is different. On the one hand, its performance trade-off is mainly based on thermal efficiency. After all, the fuel that can be carried on board is limited. The higher the thermal efficiency, the longer the endurance time. The operating conditions need to be optimized first. On the other hand, marine fuel is mainly light diesel, which has much poorer fluidity than aviation kerosene, and is more troublesome than using natural gas. In addition, Chang Haonan will soon be involved in the improvement of the J-7F and the No. 10 project, and most of the specific design work is expected to be completed by the 606 Institute alone. In short, it is difficult to achieve the efficiency achieved when optimizing the turbojet 14. After careful consideration, Chang Haonan finally spoke again: There are two main ideas for aeroderivative combustion of dual-rotor turbojet engines, and the main differences are in the air intake mechanism. "The first is to remove the exhaust nozzle, use the dual-rotor structure as the gas generator of the gas turbine, and then equip it with a matching power turbine; the second is to remove the entire low-pressure component and redesign the new low-pressure compressor and low-pressure compressor Turbine, using a new low-pressure turbine to drive a new low-pressure compressor and directly drive the load, thus eliminating the need for a power turbine. " If you are rushing to a certain time point and are in urgent need of a design plan or prototype, I think Institute 606 can first use the first idea to come up with an early model for you to conduct overall technical verification. "This time should be very fast, about half a year, or no more than a year at most, but it will definitely be worse in terms of fuel economy. We will use the second idea to upgrade and improve it later. Anyway, even the overall design of your frigate is We havent started yet, but we can definitely catch up, how about it? Lin Qing, who heard the news, couldnt believe it was true: Can it really be completed in one year... in one year? ? Judging from his slightly trembling tone, this question is obviously not questioning Chang Haonan''s ability. The latter smiled and nodded: "The foundation of the turbojet 14 engine is very good, especially since it uses a more advanced annular combustion chamber instead of a simpler annular combustion chamber from the beginning. The fuel atomization is through a pneumatic atomization fuel nozzle and a venturi tube. The two-stage cyclone cup with a sleeve structure can take advantage of the strong shear generated by the venturi tube pre-filming and the double cyclone to make the atomization, evaporation and blending processes stronger. " "So if the requirements for fuel economy can be relaxed, the overall changes will not be very large. In addition, it is a medium-sized engine. The design is very compact, and there is no need to spend too much energy to reduce the size of the gas engine. The volume and workload are not huge, and one year is enough. That would be great, that would be great Lin Qing, who was overjoyed, quickly picked up the cup and took a sip of wine before she managed to prevent herself from losing her composure due to overexcitement: As long as gas turbine power is available, the rest will be small problems, all small problems Oh, by the way, Comrade Xiao Chang, you only talked about the design part before. What about production? Do you need to import foreign parts or raw materials during the production process? Chang Haonan took a few seconds to recall what he saw when he visited Factory 410. "If I have to say, some imported equipment needs to be used in the manufacturing and testing process, but the parts and materials are all produced by us. Therefore, although we are not sure what the final allocation price will be, the cost is definitely acceptable. control, and can save valuable foreign exchange. ??He knew very well the meaning of Lin Qing''s question just now, so he emphasized the last two sentences. . In 1996, the countrys foreign exchange reserves were only US$110 billion, not long after the trade deficit phase ended. National production means low cost. It doesnt matter even if the local currency value of the transfer price is more expensive than the import based on the exchange rate. ?Whether you are willing to admit it or not, in this era, currencies such as the RMB and the US dollar and the British pound are indeed not in the same status at all. Sure enough, after hearing this answer, Lin Qing put down the wine glass and held Chang Haonan''s hand with both hands: Comrade Xiao Chang, you are simply our savior! Just like every aircraft design institute hopes that its products will be used as the main equipment of the Air Force, the Naval Ship Research Institute also hopes that its ships will become the flagship model of the Navy. Of course, in this field, 701 is the only one with almost no external competition. But as a model chief engineer, you always have to have dreams. Who doesnt want to see the ships he designed spread across the three major fleets, sailing across the oceans under the flag of the Peoples Navy? To achieve this, the first condition is that the number of buildings cannot be too small. A model like the 052, which built two ships and ended up hastily, can only be used as a star ship and cannot become a backbone force. The construction quantity is obviously closely related to the cost. Under the same conditions, the cost of construction and use of gas turbines is definitely higher than that of diesel engines. However, many key components of the Pierstik diesel engine still need to be imported from France. If the gas turbine can be fully domestically produced, the situation will be different. As for the local currency, the more expensive it is, the more expensive it is. But the import quota in military equipment funds is limited. If it is used here, it will be cut off a little there. ?The money saved on importing diesel engine parts can be exchanged for a few anti-submarine helicopters, or regional air defense missiles, supersonic anti-ship missiles and other things that the navy most urgently needs. "It doesn''t matter." Chang Haonan could not bear the sudden enthusiasm and silently withdrew his hand: Although I am not a person in the ship system, both the air force and the navy are our peoples army. I am also very happy to be able to help my brother units. ? Lin Qing''s expression changed slightly, and then she solemnly thanked him. In fact, for a long time, there has been fragmentation among military industrial units of different systems. ?Especially during the 15 years from the mid-1970s to the early 1990s, some frictions inevitably occurred in the process of "making a living" for each company, and the mutual exclusion was quite serious. ?Ten years ago, shipbuilding industry would not have come to help the air show co-organized by the aviation industry. By the mid-1990s, although the situation had improved a lot, like a family that had just had a quarrel, the lack of communication between them was still inevitable. Otherwise, Lin Qing would not know anything about the situation of Turbojet 14. If this cooperation between Institute 701 and Institute 606 can be achieved, it may be an opportunity to break the ice. However, Chief Engineer Lin, I hope you can promise me one thing, to Office 606. Just when the two were about to end their conversation, Chang Haonan remembered something he had seen in internal materials before: What happened with the Type 055 destroyer must never happen again. (End of this chapter) Chapter 145 Type 055 destroyer twenty years ago Chapter 145 The Type 055 Destroyer Twenty Years Ago The 055 Chang Haonan is talking about is naturally not the behemoth of later generations with a displacement of 12,800 tons and a 112-unit vertical launcher. It is an 8,000-ton general-purpose guided missile destroyer that was developed in the mid-1970s and is required to have air defense, anti-ship and anti-submarine capabilities at the same time. ability. According to the plan, the combat effectiveness of a single 055 ship should at least exceed the combined combat effectiveness of a 051 and a 053K. In this project, Chinas aviation industry system made the first attempt to install an aeroderivative gas turbine on a ship. In 1974, the Haojing 430 Factory improved a marine gas turbine with a maximum power of 16MW based on the turbojet 8 (power of the H-6), preparing to be used as the power plant of the Type 055 destroyer, and prototypes were carried out in the following years. Trial production and improvement. ?However, given the industrial level of our country at that time, even if this kind of gas engine was improved, it would still be difficult to be directly used on an 8,000-ton naval ship. It just so happened that the British Rolls-Royce Company was willing to sell Oprins TM3B gas turbine to my country. Although this model is not advanced in the world, its technical route is compared with the modified combustion model of turbojet 8. It is a relatively easy target for reference and learning for the Chinese gas turbine industry, which already has initial experience in development and production. Rolls-Royce has not been aggressive in technology transfer. But similar to many projects of that era, just when China and the UK had completed program selection and technical negotiations and were preparing to enter the substantive delivery process, General Electric, which was competing with the UK for the world''s ship gas turbine market, suddenly intervened. feet, indicating that it can provide the LM2500 gas turbine with more advanced performance. Our country finally accepted the solution provided by General Electric. ??The following story is just as surprising as it is unexpected. LM2500 was completely out of reach for China back then, and it had no ability to digest and absorb it. Subsequently, Turbojet 8 was discontinued because it lost the technical reference for improvement, and the development route of self-developed gas turbines was forced to be suspended, resulting in the fact that the gas turbine power units of naval ships could only rely on the United States. Finally, with the latter''s ban, the source of China''s gas turbine power was completely cut off. If Chang Haonan had not made earth-shaking changes to the Turbojet 14, causing it to be put into use nearly ten years ahead of schedule, and coincidentally attracting Lin Qing''s attention, the Chinese Navy would have to wait until the next time a ship gets gas turbine power. The Type 052B destroyer that entered service in 2004 is No. 168. The GT25000/DA80 obtained from Ermao was an industrial gas turbine used for power generation or pipeline compression drive during the Soviet period. It was never considered for ship power. It can be said that it has no merit except that the maximum power reaches the standard. Even though it was later domestically produced The technological improvements are only barely usable, which has to be said to be a huge regret in the original timeline. The reason why Chang Haonan mentioned the old 055 story to Lin Qing at this time was to emphasize that the turbojet 14 refueling project must not make the same mistake again. Hearing Chang Haonan''s words, Lin Qing showed a surprised expression at first, probably because he didn''t expect that he would be so familiar with the affairs of Old 055 at his age, and then quickly nodded heavily: Dont worry, Comrade Xiao Chang, times have changed. "As long as I am still in the position of chief model engineer, I must continue to push this project forward. Your aviation engine has proven itself on the aircraft, so I think what domestic gas turbines need most is trust and Chance." Although the heavy traffic jam during the day lasted until three o''clock in the afternoon, so that many foreign exhibitors who came from Haojiang missed the entire flight show, the incident caused a considerable sensation after all, and the news broadcast in the evening It also spent a lot of space on special reports, so by that night, everyone who should know the news already knew almost everything. ?However, compared to the cheers and various chain reactions in China, the performance of the J-8C caused much less waves abroad, especially in the West. For them, this is just a second-generation modified fighter after all, and it does not seem to have much value worthy of attention. It can also be said that at this time in 1996, the Western world did not feel that China could bring any threats or challenges to them from the bottom of their hearts. In the eyes of most Westerners, China at this time was basically just a market with great potential. ?Only some people in the aviation industry or air force research, as well as reporters who originally struggled to know how to use enough space to report on this air show, paid more attention to this. ?While Chang Haonan was attending the dinner, the foreign exhibitors and reporters who had been traveling all day were finally sent back to their hotel in Haojiang. A man returned to the room, threw his backpack aside, and then leaned back on the bed. Obviously, the day just passed made him feel very tired. A few minutes later, the door was opened again, and another person walked in carrying the same style of equipment bag. Alex, how was your harvest today? The man lying on the bed pushed himself up with difficulty and asked his companion. Too bad, our car didnt take us to the air show until two oclock in the afternoon. Everything was already over, the opening ceremony, the air show, I missed all the parts worth writing in the report. ??The man named Alex was obviously in a state of panic. He held his brown curly hair with one hand and his face was full of annoyance: What about you, Allen? If you cant take any pictures, we may be criticized by the old woman in the editorial department again... Thank God, my driver is very good and delivered me to my destination on time. Allen said, rubbing his sore legs: So I was lucky enough to take photos of the Chinese aircraft during the flight show, but my camera memory was full at the end, and I really regretted not bringing a traditional camera that uses film... It doesnt matter, as long as there is an air show, thats enough. ? Alex moved his arms and shoulders. He had been sitting in the back seat of the car, which was not spacious, for almost the whole day. He felt that his body was almost no longer his own: I heard on the way back that Chinas official news today was specially extended by twenty-five minutes to report on this air show, especially the air show after the opening ceremony. "Well...the photos and videos I took are all in the bag. You can take them out and take a look." Allen pointed to the equipment bag he had just placed on the ground: To be fair, as far as a second-generation fighter jet is concerned, the overall performance of that aircraft is quite good, and in some aspects it is not even weaker than the Russian Su-27. "So I think, for the Chinese people, this aircraft should be really important, just like... just like our mysterious fighter jet back then." The mysterious IIC is the second jet fighter designed by France after World War II. It is also the first fighter whose performance is as good as that of its American and Soviet counterparts. It has a milestone significance for the development of the French aviation industry after the war. Obviously, Chang Haonan''s little trick worked very well and successfully caused the French reporter to slightly misjudge the J-8C''s flight performance. (End of this chapter) Chapter 146 French reaction Chapter 146 French Reaction I dont know if Haojiang can receive TV signals from China. If possible, I think I would rather see what their own official video looks like. Alex did not touch Allen''s equipment bag, but took off his coat and put on his slippers, and turned on the TV in another corner of the room. ?The above happens to be a replay of the news broadcast that day. Thats right, thats it. ?He pointed at the screen and said. Even though he couldnt understand what the announcer was saying, Allen, who had been lying on the bed just now, got up and came to the TV. Damn, this angle is so good, the view is not blocked at all. Where did they set up the camera? ??This French journalist gave a high evaluation from a professional perspective. In fact, the CCTV filming location was on the roof of the hotel where Chang Haonan and the others stayed. ? Its just that this super-magic machine, which was later called Xiaobailou, has not been discovered by too many people at this time. At this point, Allen was stunned for a moment, and then quickly started the TV recorder placed below: This material is much better than what I shot, I have to record it ??The two of them had an exquisite division of labor during this trip. To put it simply, Allen was mainly responsible for photography, while Alex, who had served as a pilot in the French army, was responsible for writing. So the latters main focus at this time was on the TV screen. He was not able to witness the whole process of the flight performance live, so he urgently needs to find inspiration by watching the recording. How do you think this aircraft compares to our aircraft? ?After being silent for a long while, it was Allen who spoke first: Furthermore, since they have unveiled this model at the air show, they probably have export considerations. Will it compete with the Mirage 2000? ? Alex flew many models before retiring due to injury, so he naturally has a better say in this kind of thing. These issues mentioned by Allen are obviously a better entry point for them as a French media. ?At this time, the flight show replayed on TV was in the most exciting stage of vertical maneuvers, and Alex didn''t even hear the voices of his companions behind him clearly. It wasnt until after several consecutive actions were completed and the plane reaccelerated to accumulate energy that he finally turned around: "Sorry, Alan, I was too focused just now. What did you ask?" ??Allen had no choice but to repeat the question again. Compared to Mirage 3 and Mirage F1, it is definitely much stronger. As for Mirage 2000 Alex held the TV and thought for a while, as if he was recalling his past days on the plane: "Its agility is still a little worse than the Mirage 2000. Specifically, its instantaneous turning ability and roll rate are slightly weaker. However, the power level of this aircraft is very strong and impressive. The overall maneuverability should be improved. Stronger, if possible, I would like to see the engine model equipped on this aircraft. The engine of the Mirage 2000 is its most significant shortcoming. As an aircraft with a normal take-off weight of nearly 14 tons, which is basically the same level as the F16, it is equipped with an M53-P2 engine with only 9.5 tons of thrust, which is almost the same as that of all third-generation aircraft. The second worst. As for the issue of export sales... I am not very worried. Maneuverability is only one part of the overall performance of the aircraft. "We can''t see the radar model of this aircraft yet, but what is certain is that currently the Chinese do not have their own medium-range air-to-air missiles, let alone precision-guided weapons suitable for ground attacks. No country will want to pay for it. He used the money to purchase an interceptor aircraft that can only operate within visual range. Alex once flew a Mirage 2000 to participate in the Gulf War and has a very deep understanding of the importance of beyond-visual range combat and the multi-purpose capabilities of aircraft. Most of the people who will buy Chinese or French equipment are small and medium-sized countries. It is impossible for them to have enough manpower and material resources to build special fleets with different functions. It is best to equip only one type of fighter jets and then cover everything from air interception to All missions including ground bombing. From this point of view, the Mirage 2000 is basically the replacement of the F16. Countries that are unable to buy the F16 for various reasons or are unwilling to buy the F16 will basically consider Dassault''s products, let alone the J-8C, even if the Su-27 The status of these two models will not be threatened in the short term. As a reporter, Allens understanding of this aspect is basically at the level of an enthusiast, so he will naturally agree with Alexs judgment. ?However, his rich experience in the media industry is unmatched by the latter: "But they are developing very fast. I still remember that it should be 1987, when China came to participate in the Paris Air Show for the first time, and I was also present at that time." To be honest, the things they brought there at that time were simplyalthough I dont want to comment like this, they were completely scrap metal, at most only at the level of around 1960. There is no need to worry too much. Maybe in 10 years they will be able to come up with a newer generation of fighter jets, but by that time we will definitely have been equipped with newer Rafale fighter jets, and we may even have fourth-generation aircraft like the F22. ??As a pilot who has flown Dassaults family of tanks from the Super Mystique to the Mirage 2000, Alex is obviously very confident about Frances future fighter development: In contrast, I feel that the helicopter they exhibited this time has a greater impact on us. Helicopter? Since he ran out of storage space halfway through the photoshoot, Allen spent almost half the afternoon fishing and did not visit the indoor exhibition hall of the aviation industry. ??On the contrary, Alex, who did not catch the exciting part, looked at all the exhibits on the Chinese side. A replica of the AS365 Dolphin, almost identical, with two turboshaft engines, a 4-blade rotor, and a ducted fan tail rotor He was carrying a camera that used film, so he couldn''t take out the photos immediately, so he had to describe it roughly in words: I hope the aerospace company did not forget to impose restrictions in the contract they signed with China. Otherwise, if they sell helicopters exactly like ours at a lower price, it may have a great impact on the market. Actually...even if you sign a contract, its probably difficult to completely restrict it. Allen doesnt think there is any real restriction on something like a contract: Israel has also exported copies of our Super Mystery and Phantom 3 before, but in the end it was nothing. The arms trade does not need to comply with many commercial terms. Okay, you have a point. Alex shrugged: But you reminded me that I have already thought about what I want to write in this column. "oh?" Alan, who just lay back on the bed, suddenly sat up again: What do you want to write about? I would like to thank the short-sighted fools in the Ministry of National Defense and Congress on behalf of the Chinese people. Because they destroyed the Mirage 4000 project, our air force will soon become the weakest among all major countries in the world! Alex suddenly danced and roared. "Uh... calm down first." Allen was frightened by his companion''s exaggerated movements and stepped back. At the same time, he thought of a way to comfort him as quickly as possible: Looking on the bright side, no matter what, there are still British people who can give us the bottom line. Unexpectedly, Alex became even more excited: You actually think that the UK can be considered a major country in the world? (End of this chapter) Chapter 147 The Russians are a little confused Chapter 147 The Russians are a little confused At the same time, in the hotel next to the exhibition center, representatives of several Russian exhibitors were also gathering together to watch the videos and pictures taken by TASS reporters. Other than China as the host, Russia is the most fully prepared for the Xiangzhou Air Show. A typical example is that they also discovered that the rooftop of this hotel was the best vantage point for filming air shows, especially flight performances, and therefore contributed sufficiently complete and clear image data. Correspondingly, their judgment of the current situation is much more reliable than the French. For a second-generation aircraft, the maneuverability, especially the vertical maneuverability, of this aircraft is truly amazing. Although Bogosian witnessed the whole process of the J-8C flight show on site, the exhibition area he was in at the time was obviously not as good as the view in Xiaobailou. What''s more, the camera also has the ability to zoom in and can capture some more details. something. Look. ?Pogosyan paused the video tape being played in front of him, pointed at the wing of the aircraft that was circling in a small radius on the screen and said: This aircraft will open the leading edge slats to increase lift during low-speed flight. If I remember correctly, this structure did not exist on previous Huaxia models. "We can''t see clearly the specific design of the slat structure from the video, but from the flight attitude and the timing of activation, we can still infer that the trailing edge of this slat should be specially optimized for low-drag orientation, so the available speed range Its relatively large, and the speed of the aircraft here is at least 450km/h, but it can still work. ??As the head of the Sukhoi design department, Pogosian analyzed the J-8Cs wing improvement principles almost as soon as he saw the video. Not only does the previous model not exist, Artyom Trusov and I have been working at the Aircraft Research Institute in Shengjing for more than a year, helping them optimize the flight control of the digital fly-by-wire stabilization demonstrator aircraft. " The speaker was none other than Alexander Mosin, who had previously reported the flight performance of the J-8C to Sukhoi: "The J-8C aircraft they displayed this time has made its first flight several years ago. In fact, there is no similar design on the previous verification aircraft of this model. This slat seems... as if it was suddenly Its the same design. I think this is unlikely. Since all the design work of the J-8IIACT has been completed, Trusov and Mosin, who have no work to do for the time being, were invited to Xiangzhou together: "Almost all China''s aircraft in the past were produced under license or copied from our models, and they did not have leading edge slat designs, so this should be a completely new attempt for them and will definitely require a lot of effort. Only test flight data can optimize such good results. "Mosin and I just happened to see that test flight. They must have been testing this new wing configuration for a long time. You must know that it was already September. If it was really a completely new design, it would be impossible. Putting it on the air show just two months after it was installed is too risky and completely inconsistent with the Chinese peoples style of doing things. "But" ??Mosin wanted to refute something, but was interrupted by Alexey Bulatov who had not spoken next to him: No matter how long it took them to use it, judging from the flight performance, the effect of this leading edge slat is quite good. However, no matter how excellent the aerodynamic design of the aircraft is, abundant power is the fundamental guarantee of maneuverability. So compared to the wing design, the power of this aircraft shocked me more. He said as he took out a bunch of photos from his bag, picked out one and handed it over. ??This was taken by him in the China exhibition area. After the exhibition closed, he found a photo studio and had it developed in a hurry. I made some notations in Russian on it so you can take a look at the performance of this engine. "According to the data on the exhibition board, the thrust-to-weight ratio of this engine has reached 6.82, and the total pressure ratio is even greater than 18, which shows that it has a very efficient compressor." "In addition, I also need to emphasize that China uses The thrust-to-weight ratio calculation method is similar to the French military standard. Compared with our and American standards, the calculation result will be lower. If we follow our calculation method, the thrust-to-weight ratio of this engine should exceed 7. " Isnt that... almost the same as the RD33 engine on the MiG-29? The representative of the Tupolev Design Bureau who was participating in the exhibition took the photo with a look of disbelief on his face and stared at it for a long time: A turbojet engine? Buratov nodded: If you only look at the thrust-to-weight ratio, it is like this. Although the common problem of turbojet engines is definitely still there, it is already very exaggerated. Is it possible that they have deliberately inflated the data? ?It is basically a common practice all over the world to add some water to the data during the export and display process. Moreover, the data written on the display board in the picture is indeed a bit too shocking. Buratov knocked on the table next to him: "You have just seen the performance of that aircraft, especially the vertical maneuvering part. At medium and low speeds, you directly pull the stick to climb at a large angle, and then complete a 360 turning flight. Without sufficient power, it would be impossible. Such a risky endeavor. So even if there is a certain false standard, the water content will not be very high. I even think that the data on this display board is probably real. It is not difficult to understand why when they introduced the Flanker production line, they required our approval to improve the aircraft during the production process. ?Pogo turned off the TV and sat back on the sofa next to him: Moreover, during the performance today, they played a little trick to make the maneuverability of this aircraft look as good as our Su-27, which stole a lot of the limelight. According to the schedule, we will have a flight show tomorrow. The previous plan was just to repeat the show this afternoon, but now we have to come up with something new. The Su-27/30 will definitely be Sukhoi''s main fighter for export revenue for a long time in the future. Pogosian''s design department is still counting on the export of aircraft to generate funds to continue to support the design of new models, so it is impossible for him to accept being replaced by one. The second-generation aircraft stole the attention. Do you have any ideas? ?After hearing this question, Sergey Lozko from the Ilyushin Design Bureau suddenly lit up his eyes: If it is just to demonstrate the maneuverability of the aircraft, then just leave the Su-30 on the ground and only let the single-seat model with better performance carry light fuel to perform. But I have a better idea. (End of this chapter) Chapter 148 Ilyushins ambition Chapter 148 Ilyushins Ambition Originally, Lozko and the Ilyushin Company team he led were not here to participate in the air show, but to protect the air show. They did not bring any models planned for the exhibition, only an Il-76 transport aircraft carrying aviation materials and personnel and an Il-78M tanker used to provide fuel to the exhibiting aircraft. ??But that doesnt mean Ilyushin doesnt want to do something at the air show. China purchased 14 IL-76 transport aircraft from Russia in two batches in the early 1990s to form a strategic transport fleet of the Air Force. But this transaction has nothing to do with Ilyushin Company. All 14 aircraft were delivered directly from the Russian armys current equipment. The plane was sold, but no money was made. In fact, at this time, the Russian Federation still has some concerns about exporting such a large transport aircraft with a take-off weight of 200 tons. But Ilyushin Company had no worries, or in other words, it was too late to worry. Seeing that Sukhoi and Mili (which designs and produces Mi 8/17/171 helicopters) were resurrected on the spot with the large orders signed with China, they not only restarted the development of new models, but even started to develop helicopters in Novosibirsk. The aircraft manufacturer has opened a new production line, and Ilyushin is also jealous. The main reason is that the problems they face are more troublesome than all other peers - As its absolute flagship product, the final assembly workshop of the IL-76 is not in Russia, but in Tashkent, Uzbekistan. In the past, everyone was from the same country. The design bureau was in Moscow and the manufacturing plant was in Tashkent. There was no problem. The right was to upgrade the industry in remote and backward areas. But its different now. First of all, after the disintegration of the alliance, the situation of several Stanton countries is much worse than that of Russia. If the assembly plant is allowed to continue to be abandoned, then the Tashkent plant will probably not be able to produce new Il-76s in another two years. Secondly, just earlier this year, Uzbekistan and NATO entered into a "Separate Partnership Plan", showing a tendency that worries Moscow. ?For insurance purposes, Ilyushin Company plans to build a new Ilyushin 76 final assembly line at the Voyager SP factory in Ulyanovsk to absorb workers from Tashkent. And this takes time and money. The best way is to find a customer, a big customer, and sell more than ten or twenty brand-new IL-76s. This way, we can retain the workers in Tashkent to buy time, and get enough funds to build new production lines. But there is a huge obstacle to this approach. IL76 was too successful. As a strategic transport aircraft, the Il-76''s take-off and landing requirements are almost as low as those of tactical transport aircraft, and it can even use non-paved runways. Simply put, it has the load capacity of C141 and the usage conditions and cost of C130. Hence, more than 850 were built. All other strategic transport aircraft models in the world combined do not reach this number. But now, after the disintegration of the Russian Air Force, there is no need for so many strategic transport aircraft. So the biggest opponent of Ilyushin Design Bureau today is itself before 1991. The only way is to promote new models. ?Now, Ilyushin Company finally sees an opportunity. The Ilyushin 78M is a large aerial tanker designed based on the Ilyushin 76 platform. Compared with the old model IL-78, its biggest feature is the redesign of almost the entire wing box structure and the elimination of the cargo door at the rear, which greatly increases the fuel capacity and also loses the cost of removing the oil storage tank. The guest transport aircraft has the ability to carry cargo. More importantly, it could not be modified from the IL-76 and was produced in very small numbers before the collapse of the Soviet Union. ?In the video of the flight show just shown, Lozcot specifically observed that the nose part of the J-8C was equipped with a non-retractable fuel pipe. Obviously, this shows that the Chinese Air Force has a need to expand the combat radius of fighter jets. During the Soviet period, the aerial tanker Figure 16N modified from the Figure 16 was also equipped. Therefore, Lozko knew very well that the limit of this model was less than 20 tons of oil. If the refueling area was slightly further away, the oil volume could easily drop to Below 10 tons, it basically only has symbolic aerial refueling capabilities. And the Ilyushin 78Ms maximum oil delivery capacity is 106 tons 85 tons even at a distance of 1,000 kilometers. Who can resist an air nanny with this capacity? In fact, what Lozko wants to sell to China is a deeply improved model of the IL-76, the IL-76MF. It is equipped with four PS90A engines of the same model as the Tu 214, the fuselage is lengthened by 6.6 meters, the maximum payload is increased from 48 tons to 60 tons, and it still has an astonishing range of up to 5200km at the maximum load. More importantly, its prototype completed its first flight last year, and it is by no means a piece of cake. Its a pity that I didnt bring it with me this time. Tell me what you think? ?Pogosyan turned and looked at Lozko behind him. We can divide the flight show into two parts. Lozko organized his words a little and said: First of all, the Su-27 alone will carry the minimum amount of fuel and conduct the first part of the flight performance. Then let our IL-78M tanker take off and refuel the Su-27 in the air at the air show site. After the refueling is completed, we will perform the second part of the performance. Originally, neither the single-seat Su-27S nor the two-seat Su-27UB were designed with fuel pipes. The same applies to the previous aircraft named Su-30 but essentially just Su-27UB with a different livery. ??But this time at the Xiangzhou Air Show, Sukhoi brought two aircraft belonging to the Gromov Test Flight Institute, not the Russian Air Force They all happen to have the ability to receive oil in the air. Aerial refueling? The representative of the Tupolev Design Bureau next to him scratched his head: "What is there to perform? Although it is very difficult, I think most people may not be able to feel it." Of course Lozko couldnt clearly say that he was trying to demonstrate the performance of his own aircraft: As far as I know, the Chinese Air Force has only put into service the first aerial tanker modified from the Tu-16 last year. The number is small and the performance is not enough. So, whether it is for ordinary people in China, the Chinese military, or even aviation technicians, aerial refueling is a very new thing. Many people have never seen such a scene in the past. Air shows are about one person having nothing but oneself, and others having oneself are the best, so my method will definitely work very well. ?This explanation was perfect, and no one could think of a better way for a while, so they all agreed. Very good, then I will contact the air show organizer early tomorrow morning and make changes to the afternoon performance schedule. Pogosian said as he took out a notebook from his pocket, wrote down the contents of Lozko''s proposal, and then raised his head again: Also, before the meeting ends, I have one more informal matter that I would like to hear your opinions on. (End of this chapter) Chapter 149 Sukhois ambition Chapter 149 Sukhois Ambition Although all Russian aviation companies actually participated in the Xiangzhou Air Show independently, both in terms of the size of the Sukhoi Group and Pogosyans own position in the group, he can be regarded as half "Leader" role. After all, in the past few years, Sukhoi has dealt with China the most and has the largest transaction volume. So as soon as these words came out, everyone who was already preparing to go back to rest turned their attention to Bogosian sitting on the sofa again. "I don''t know if you have noticed that at this air show, all the military industrial units participating in the China Airshow used the same name. I consulted the translator in the team and the official name should be China Aviation Technology Import and Export Co., Ltd. " After his reminder, everyone in the room began to seriously recall the Chinese staff they had met throughout the day. Mosin, who had the most leisure time all day, nodded first: It seems to be the case. Their staff all wear the same style of clothes, and the styles of their work badges are also very similar. "So...their entire aviation industry system has a company dedicated to external affairs that is responsible for military trade and military technical cooperation?" It was Bulatov who reacted faster and captured what Bogosyan really wanted to express. Thats right, thats it. Seeing someone catch his words, the latter continued excitedly: I have to say that the Chinese people are really very thoughtful in doing business. Their aviation industry system basically copied our previous system, and they also underwent corporate restructuring later, but in actual operation, they still implemented the model of separation of factories and offices. "After experiencing the past few years, everyone should be able to understand that our research institutes and manufacturing plants, which used to be only responsible for aircraft design or production, are not good at commercialization, even if we put on the cloak of enterprises. If you fight on your own in the military trade market, you will often suffer losses. ??This last statement really resonated with most people in the room. Before the disintegration of the alliance, arms exports were the responsibility of a large professional department, the General Administration of Engineering of the Ministry of Foreign Trade. When a country submits an application for weapons procurement or assistance, the foreign affairs department will transfer it to the General Administration of Engineering for review and approval, and then negotiate with the State Planning Commission on detailed issues such as export prices and supply methods. The military production department only needs to manufacture and deliver weapons and equipment as required after receiving production tasks and allocations. But after 1991, these design bureaus and research institutes, which were originally responsible only for technical work under the Military Industrial Committee and the nine defense industry ministries, were thrown directly into the cruel international competition almost without preparation. ?Unsurprisingly, almost no one knows how to do business, how to negotiate, how to sign an agreement, how to deliver... ?The luckier ones, such as Miri Helicopter Plant Joint Stock Company and Sukhoi Aviation Group, can still make ends meet with their high-quality and low-priced flagship products. Those who are less fortunate, such as Yakovlev, Ilyushin and Kamov, are unable to find sales for their products. It is difficult to even pay daily necessities, let alone pay wages to employees. Misha is right. ??Lozko''s tone was a little lonely: The employees at the Ilyushin Design Bureau have not received full wages for several years. Comrade Yurasov almost searched for all the connections to barely keep the entire design team from disbanding. ?The person he mentioned is Andrei Vladimirovich Yurasov, the chief designer of the IL-76 and IL-78, and the current head of Ilyushin. ?Others'' faces were also somewhat gloomy. Although the most difficult time after the disintegration has passed, for these people who have been burdened with countless honors, just surviving is not enough. So, Comrade Bogotsang, what do you mean by the informal things you just mentioned? Finally someone broke the somewhat depressing atmosphere. I want to refer to the Chinese peoples approach, and these companies we are working on will jointly establish a company similar to the General Administration of Engineering, recruit professionals from those who were responsible for negotiating export prices in the past, and focus on the foreign trade business of aviation equipment. " Pogosian finally revealed his true purpose: "Of course, the mission of this company should be to provide consulting or services, and it will certainly not have the same management and decision-making power as the General Administration of Engineering." ? ? ? "In this way, we can at least concentrate our efforts on improving professionalism and bargaining in the negotiation process. We can also seize more opportunities in the global market and even conduct some bundled sales. For example, some countries may need both fighter jets and helicopters, so we can provide them with a package solution. After he finished speaking, the room suddenly fell into silence again. ?This proposal is too heavyweight and is closely related to everyone involved and the collective behind each person. Everyone needs some time to digest and think. ?Everyone knows that it is definitely not the case that Bogosian would take the initiative to propose such a thing, at least it is not just because he wants to help his brothers with good intentions. Once the company he mentioned is established, it will monopolize the export of Russian aviation products to a large extent. Even though the people here are from technical backgrounds and dont know much about business, after years of hard work, they still understand the importance of channel construction. ? And the Sukhoi Group, which has the largest share and the most experience in foreign arms sales in the past, will definitely have a considerable say in it. It can even be used to exert influence on other companies in the same military industry. ?Your own company loses its independence, which of course is something no one wants to see. On the other hand, as Pogosyan said, the benefits of this model are also obvious. ?It is certainly uncomfortable to have channels in the hands of others, but if you have no channels at all, it is better than being suffocated to death with the goods in your hands. Looking at the uncertain faces of everyone in front of him, Bogosian naturally knew what everyone was thinking. ?He did not talk nonsense, but continued to say straightforwardly: "Don''t worry, when the country is on the right track, such a company will definitely not be able to continue to exist independently. It will definitely be taken under federal ownership, or even become an independent department again, so there is no need to worry that it will grow bigger and in turn affect you. company." The meaning is very clearI, Bogosian, have done this because I have higher pursuits besides business and engineering technology. Dont worry that I will use this to let the Sukhoi Group control or annex other fraternal units. In fact, the inner balance of most people is already in a state of swing. People like Lozko who are already hungry are even more ready to agree, but are just embarrassed to be the first to speak. So as soon as this sentence came out, someone immediately borrowed Po Xias donkey: "In this case, I think this proposal is the best. Past experience also tells us that we still need to concentrate our efforts to achieve great things." After the first person agrees, there will be no psychological burden for others to follow: Although I cannot make the final decision on behalf of the company, I will convey the matter to Comrade Yurasov as it is, and I believe he will agree. Lozko stood up for the second time. I will hold a meeting immediately after I return and I am confident that this plan will be passed. The third person to express his position was the representative of Tupolev Company. Me too! "agree!" Bogosian finally showed a satisfied smile when he saw this scene: Dont rush to make a decision. We are only having a preliminary discussion of intentions now. More specific cooperation details will have to be discussed after returning to China. Then, thats it for today. I wish everyone a good dream at night. (End of this chapter) Chapter 150 Fight the fire, the wings are icy! Chapter 150: Firefighting, the wings are frozen! ?Just as Russia was re-planning the flight show for the next day, Chang Haonan no longer had the energy to continue paying attention to the Xiangzhou Air Show. No one expected that Chang Haonan''s next work place would be neither the Shengjing 601 Institute, which still needed to finish the August 3rd Project, nor the Chengcheng 611 Institute, which had already extended an olive branch to him and was just waiting for project review and approval. So, let alone Bingcheng No. 602 who only chatted with him at the end of the dinner. Rather, it was the Nanzheng 182 Factory that had not even appeared at the air show. After the dinner on the first day of the air show, Chang Haonan, who was already lying on the bed and about to fall asleep, was suddenly awakened by a rapid ringing of the doorbell. The visitor is a local staff member from Xiangzhou, and should be the organizer of the air show. After confirming the identity of the person outside the door, Chang Haonan sleepily opened the door a crack. He was a little angry when he was woken up. Whats the matter? As a result, the other party''s words made him sleepless: Comrade Chang Haonan, there is a call from Nanzheng, saying that I have urgent matters to see you. Did you call from Nanzheng? ?Chang Haonan was stunned for a moment. He did not remember that he had any interactions with them there. Should I go down and answer the phone? The person outside the door shook his head: No, this call is confidential, its an internal call, so youd better change your clothes, were going to the Xiangzhou Municipal Party Committees Confidentiality Office. Okay, just wait for me. Nearly an hour later, Chang Haonan, who was pulled out of bed, finally rushed to the confidentiality office and contacted Du Yishan on the other end of the phone. Xiao Chang, the Science and Technology Commission has issued an urgent task. I need you to go to Nanzheng 182 Factory with me. Factory 182...is Shaanxi Fei? When Chang Hao originally started working, Factory 182, like Factory 172, had become the aircraft manufacturer corresponding to the 606. Its presence in the field of aircraft design was quite weak, so it took him about a second to realize that it was the other party. Where are you talking about. Yes, Shaanfei. Du Yishan on the other side of the phone said in a serious tone: "Just this evening, a special model Y-8 aircraft that had just been refitted suddenly lost its pitch balance when it was preparing to land after a test flight. Although it did not cause a first-class accident due to the low altitude and the timely response of the crew, the aircraft was still affected. "Severe damage was caused, and it is initially suspected that the aircraft suffered icing on the wings." The technical capabilities of Factory 182 are relatively limited, so we have applied for foreign aid. We need our help to identify the specific causes of the accident and improve the aircraft. Before tomorrow morning, there will be a Boeing 737 landing at Xiangzhou Airport. You can take that plane to Nanzheng. We will talk about the rest after we arrive. Hearing this, Chang Haonan was also shocked. Yun-8''s wings were icy. In the original timeline, this was a long-standing problem that had plagued the Chinese Air Force for nearly 40 years, and it resulted in extremely heavy losses. For example, on June 3, 2006, an Air Police 200 early warning aircraft crashed while performing a mission. All 40 people on board, including the crew, died. 34 of them were senior engineers who were testing radar and electronic equipment. For China''s aviation industry, Developments in electronics have dealt a heavy blow. He even knew some of the victims. According to the investigation, although the cause of the accident was also non-technical factors such as overloading of the aircraft (a lot of additional test equipment was installed), the main reason was the instability of the pitch axis caused by ice on the wings. Obviously, the problems encountered by Nanzheng this time should be similar. Okay teacher, I understand. See you tomorrow. After hanging up the phone, Chang Haonan was in a daze. ? He ??is not sure whether the accident in 1996 existed in his previous life. After all, it was just a second-class accident with no casualties, and it may not be reported and publicized. ??But this is undoubtedly a chance for redemption Including the June 3 air crash, at least 4-5 Y-8s crashed due to the same or similar reasons in the first 20 years of the 21st century alone. Even if Chang Haonan has changed many things after his rebirth, at least in the next ten years or so, the People''s Air Force will not be able to completely eliminate this model. ? It will also be almost the only medium-sized special aircraft platform available in the aviation industry before the Tu-204/214 realizes localization. Therefore, if the problem of Y-8 wing icing can be completely solved now, a lot of unnecessary losses can be avoided. ?Those outstanding pilots and engineers can continue to shine in their jobs... This night, Chang Haonan suffered from insomnia. After getting on the Boeing 737, he finally rested for a while on the plane. Until I was woken up by the wheel hitting the ground and the subsequent sound of brakes. After the plane stopped, Chang Haonan strode out of the cabin. The cold wind in early November blew on him, making him shiver involuntarily, and he suddenly woke up at the same time. "teacher." ?Du Yishan has been waiting beside the gangway for some time. ?After walking closer, Chang Haonan noticed that his eyes were bloodshot. He probably didn''t sleep all night last night. Come with me and go see the plane first. ?Teacher and student got into a jeep next to them, one on the left and the other on the right. After I called you yesterday, I led the comrades from Factory 182 to conduct an all-night data analysis, and we have basically clarified the cause of the accident. As a veteran of the aviation system, Du Yishan, despite his advanced age, still has strong abilities in these areas that require experience: Due to initial design issues, the Y-8 only used engine hot air for heating on the leading edges of the inlets, wing leading edges and engine guide blades, while only the tail leading edges, propellers and hub fairings were heated. Electric heating device. "When the aircraft was approaching landing, the environmental conditions were an atmospheric temperature of 2C, a humidity of 71%, and a temperature dew point difference of 4C. It happened to be in the most icing conditions. The horizontal tail of the aircraft quickly formed ice, but due to the operation 8 There is no convenient way to observe the condition of the tail, so when the pilot realizes that the horizontal tail condition is wrong, it is too late to turn on the electric heating de-icing device. " "According to our calculations and analysis, the supply of hot air to the engine is sufficient, so there will be basically no icing on the main wing and engine inlet. However, the problem of icing on the tail wing is more complicated, and the Y-8 modification progress is very fast. It is urgent that you use simulation methods to improve efficiency and minimize the number of aircraft for flight testing. ?Just as Du Yishan was introducing the situation to Chang Haonan, the jeep had already arrived in front of a large parking shed. There is a strange-looking plane parked inside, or rather lying on its side. ?Although the appearance is indeed that of the Yun-8 at first glance, the navigator cabin in the original nose part has been replaced by a bloated "big nose". This is a Y-8J maritime surveillance aircraft. In other words, it is a platform planned to be transformed into a transport 8J warning aircraft! (End of this chapter) Chapter 151 Yun-8s wing is icing, causing a big problem Chapter 151 Yun-8s wings are frozen, causing a big problem In 1996, our country spent a huge amount of US$66 million to purchase 8 sets of Soushui-2000MS radars from the United Kingdom. It was planned to be installed on the Y-8 platform and handed over to the naval aviation for use in searching for surface targets to guide fighter-bomber attacks. 7 launches anti-ship missiles to attack. In the end, a total of 4 Y8J maritime surveillance aircraft were produced. ?These four aircraft were also our countrys only space-based long-range detection capabilities at the turn of the century. Performance...can only be said to be unsatisfactory. But at least the problem of availability has been solved, and this kind of aircraft also has certain command capabilities, allowing our army to accumulate a lot of experience in the tactical arrangement and use support of real early warning aircraft in advance. Because the radar purchased from the UK has not yet arrived, the Y-8Y in front of Chang Haonan is actually just a platform model waiting to be modified. The main task at this stage is to conduct test flights in various environments to obtain sufficient flight data. At this time, the aircraft parked in the hangar had already suffered obvious damage. The improved nose radome and nose landing gear were almost in disfigurement due to the impact during landing. Fortunately, the cockpit and wing parts were relatively intact, so the crew members only suffered some injuries, and there is still the possibility of subsequent repairs. There are already many staff from Factory 182 inspecting the aircraft here. ?Seeing Du Yishan and Chang Haonan walk into the hangar, a burly middle-aged man walked up and said in Mandarin with a slight Hunan accent: Academician Du, we have restored and simulated the flight data during the landing process according to your analysis, and found that it is completely consistent with the actual situation. "In addition, we have just temporarily transferred a Y-8F from the assembly workshop, which can be used to cooperate with you in testing. The data on An-12 surveying and imitation and the design drawings of several subsequent improved models have also been prepared. Our 182 Factory has obtained it from us. From now on, no, everyone from General Manager Wang on down will obey your orders! ?Originally, Chang Haonan had no impression of the person in front of him, but he immediately reacted after hearing his accent. This is the chief designer of a series of future improved models of the Y8 platform, Liang Shaoxiu. Since Chief Engineer Xu Peilin, who was originally responsible for the Yun-8 prototype to Yun-8C, retired last year, the 182 Factory, which has relatively weak technical strength, can only take the lead at this time. Just when I was at my most desperate, I encountered such a fatal accident. At my age, Im almost the same as your Commander Xu. I can analyze problems well, but I cant keep up with young people in other aspects. Du Yishan waved his hand, and then gestured to Chang Haonan beside him: This is my student, Chang Haonan. I think the main work of this improvement should be completed by him. "this" ?Liang Shaoxiu looked at Chang Haonan, who was younger than himself, and hesitated for a moment. But soon he remembered that he had seen this name before: Ohthe one from 606 Institute that applied this year The design of the J-8C has not yet been finalized. After all, it is a confidential project and will not be promoted in a particularly public form. Therefore, Chang Haonan is now more well-known as the first person to complete advanced technological achievements. ?This kind of title has almost no influence outside, but it can be used as hard currency within the aviation system. Hello, Mr. Liang, its a pleasure to work with you and the comrades of Factory 182. ?After the experience of the August 3rd Project, Chang Haonan''s [management ability] has improved, and he has gradually become accustomed to dealing with similar scenes. He is no longer the small character in his previous life who was a little nervous even attending seminars. Hello, Comrade Chang Haonan, its great to have Academician Du and your help, thank you. "The time pressure we are facing now is very tight. The Yun-8J is developed on the basis of the fully air-tight Yun-8C. The improvements do not involve the wing part of the aircraft, so this accident is a serious issue for the entire Yun-8 model. A big problem." "We are about to deliver a batch of new models of Y-8F to Postal Aviation. If the hidden danger of icing on the wings cannot be properly solved, users may refuse to accept them. The export orders we are negotiating with Persia will also be affected. Influence." "Well... I can''t guarantee anything about time, but I will definitely achieve the fastest efficiency." Chang Haonan nodded: "How about we take a look at the design information first?" "Okay, follow me." ?Looking at Chang Haonan''s confident look, Liang Shaoxiu, who was originally anxious, also calmed down a lot. Actually, Chang Haonan knew the crux of the Y-8 wing icing problem. ??Its just that he has never come into contact with information related to Yun 8 in this life, so it is too inconsistent to directly confirm his chest... Simply put, the design of the de-icing system of the An-12/Yun-8 aircraft is not reasonable enough. ?Taking the horizontal stabilizer with the most serious ice problem as an example, it only has an electric heating de-icing system that is distributed on the entire horizontal tail surface and is evenly exposed to rain and dew. Moreover, this system only has one highest current mode available. ?In the Soviet Union, considering the climate conditions near the Arctic Circle, this design is still barely usable. Anyway, the temperature is low enough, and the current is high. ? Even so, the flight safety record of the An-10/An-12 is quite poor. In China, where the temperature is relatively high, if the heating system is turned on for a long time before it freezes, it will cause the insulating glue layer to heat up rapidly and carbonize, further causing a short circuit and burning through the tail skin. So the pilot must turn on the electric heating device only after confirming that there is a risk of ice forming on the horizontal tail, or even when ice has already begun to form. ?Even so, there are risks. Because the ice thickness at different parts of the wing is different, but the heating power of the deicing device is average. It is very likely that the ice has not been removed in some places and the insulation glue layer in some places has begun to be damaged. Of course, there are some experts who can rely on experience to prevent icing in advance by turning on the heating device for multiple short periods of time, but this obviously should not be a requirement for ordinary pilots. As for the main wing of the aircraft, as Du Yishan said before, due to the use of a more efficient aerothermal anti-icing system, there is really no need to worry about anti-icing capabilities. But it is definitely not without problems. ?Gas-thermal de-icing requires extracting high-temperature and high-pressure gas from the engine combustion chamber as a heat source, which will inevitably affect the power of the aircraft. Therefore, on the premise of meeting the de-icing capacity, the total amount of gas used should be reduced as much as possible to maintain engine performance. However, the design of the Yun 8 system also highlights the idea that great power can produce miracles You should know that aircraft are most likely to encounter wing ice during takeoff, landing, and low-altitude and low-speed flight. The engine also needs to output enough power, or be prepared to output enough power. At this time, if you pump out 10% of the high-temperature and high-pressure gas at a time to remove ice, how can the power be guaranteed? ?Moreover, the environment of low-altitude and low-speed flight is inherently complex, and artificially adding a high-speed airflow blowing on the wing surface will only further increase instability. ?All of this makes the Yun8s already poor low-speed performance even worse. By the way, Commander Liang. After walking out of the hangar, Chang Haonan suddenly stopped Liang Shaoxiu in front of him: It would be better to have an expert in meteorology to assist us, which would be much more efficient. Thank you brothers for your support. The best-selling selection will be posted tomorrow, with more updates! (End of this chapter) Chapter 152 Isn’t this better than the weather forecast? Chapter 152 Isnt this better than the weather forecast? Meteorology expert? ?Liang Shaoxiu was a little surprised by Chang Haonan''s request. The flight support department in the factory area will have some positions responsible for weather forecasting, but they can only be regarded as technical personnel at best and do not require relevant professional background. They can take up the post after short-term training. They definitely do not meet the requirements represented by the word "expert". . We may not be able to find anyone who meets your requirements in Nanzheng, but we can ask Jincheng University for help. They often guide us in weather forecasting. This is best. Chang Haonan nodded. At this time, the two of them had entered the data room next to them. All the information related to Yun 8 is stored here. Liang Shaoxiu said, looking at the rows of filing cabinets in front of him. As a transport aircraft that has been imitated since the 1970s, the various related design materials are naturally entirely on paper, and many of them are even original in Russian. Although under the promotion of Chang Haonan, 611 Institute, 601 Institute and 112 Factory have successively begun to try to digitally design and produce new models, the relevant experience and technology have not yet been promoted throughout the aviation industry. In addition, Factory 182 is relatively remote and has just changed its management. It is already short of manpower and has to deal with the design and manufacturing of two improved models of Yun 8F and Yun 8J at the same time. It is even more incapable of actively tracking the advanced experience of these brother units. This is not only a problem of Factory 182 itself, but also a situation faced by many third-tier construction units. ?Except for a few who were particularly successful, and some who were lucky enough to leave the third tier and move back to big cities, most third-tier factories had a difficult time in the 1980s and 1990s. Those like Factory 182 that were able to survive into the 1990s can be considered rare. Liang Shaoxiu and several engineers skillfully took down a thick stack of materials packed in bags from one of the shelves. Then the second pile, the third pile... Since what needs to be modified this time is not just the aerodynamic shape, but also involves structural changes inside the fuselage, although there are only two parts that need to be processed: the main wing and the horizontal tail, it is still the number of drawings Chang Haonan has handled. The most ever. Actually, from the time we started copying the An-12, we had some concerns about the Soviet-style de-icing device on board. Liang Shaoxiu, who was out of breath from the continuous carrying, quickly opened the file bag and said to Chang Haonan: But the conditions here at that time were really poor. Even if we had technical data and prototypes, we could hardly do mapping and imitation. We also had to take into account the gap in aviation manufacturing, and there was no time to make major changes to these parts. Although the Y-8 is a copy of the An-12, the two aircraft are actually even different in sizethe fuselage of the former is about 1 meter longer than the latter, in order to reduce the difficulty of the production and assembly process. What about the back? After all, there are so many improved models of the Y8, especially the Y8C which has an airtight cargo compartment. Are there not some remedial measures in this regard? ?Although Chang Haonan knew what the problem was with the Y-8 de-icing device, that was already the experience he gained on the majorly modified platform that would later be called the Y-9. As for what happened from the basic model of Y8 to the third type of Y8 platform, he didnt know much about it. "Of course." Liang Shaoxiu finally found the part about the wing de-icing device from the pile of drawings, and laid it out on the drawing board in front of the two of them. On the original An-12, a total of five icing warning devices were only installed on the left side of the nose and above the engine inlet. We later installed two cameras in front of the horizontal tail, allowing the mechanics to monitor them in real time through a monitor. Monitor the condition of the horizontal tail, and if ice is found, quickly turn on the electric heating device and retract the **** to abort the landing process, and then land again after the de-icing is completed. Icing on the horizontal tail not only means that the pitch stability becomes worse, but also when the main wings enlarge the flap angle during landing, the airflow will also have a downwash effect on the horizontal tail, causing the nose to press down sharply, which often means a dive crash at low altitudes. But this change requires the data cable to penetrate the cabin from the bottom, so only the Y8 basic model and Y8B models that use non-airtight cargo compartments can be installed..." "Well" ?Chang Haonan held his forehead helplessly. Sounds like a very green solution. Is it useful? There must be some. After all, the oldest batch of Y-8s had never heard of any accidents due to icing on the wings. But it certainly cannot continue like this. Furthermore, the main users of the Y-8J, as well as a considerable number of future Y-8 platform special aircraft, will be naval aviation, and the environment in which they perform their missions is even worse than that of the air force. HNA aircraft, even land-based HNA aircraft, often need to be redesigned. Well, its a bit crude indeed. Liang Shaoxiu also felt a little embarrassed after introducing the situation, and scratched his head in embarrassment: So on the Y-8F-400 currently being designed, our initial idea is to design three sets of electric heating systems with different powers for the horizontal tail. At that time, the pilot will decide which set of equipment to turn on based on the specific situation..." However, because of this accident, our improvements must be completed in advance so as not to delay the progress of the Yun-8J project and the delivery of orders for several future aircraft, so... I can only trouble Academician Du and you. After listening to the other party''s narrative, Chang Haonan thought for a while, then picked up a sharpened red and blue pencil from the table and came to the drawing board. An engineer next to him had the insight to lay a piece of white paper on top There is no blackboard or chalk in this room, so this is the only way. Theres nothing wrong with your idea, but I think its a bit too conventional. Chang Haonan drew a schematic diagram of the wing section on the paper in front of him as quickly as possible, then turned around and looked at the engineers of Factory 182 in front of him: "I have a more radical method, which can not only completely eliminate the risk of wing icing from the source, but also greatly improve the take-off, landing and low-speed flight performance of the Y-8." ? ? ? "That is, by controlling the aircraft''s operating environment , the overall design and the flow field structure during flight, calculate and analyze the icing conditions on the wing surface, and then adjust the distribution of de-icing heat sources in a targeted manner based on the analysis results. " "Configure stronger electric heating devices or gas outlets in places that are more likely to freeze, and make the opposite change in places that are less likely to freeze. Use good steel on the blade, which can reduce high-temperature gas and The loss of electrical energy can also improve the actual effect of de-icing, and pilots dont have to worry about damaging the aircraft if they turn on the heating device in advance. " ?Chang Haonan added content to the schematic diagram he just drew while talking. Although he obviously has no talent for painting, he still made everyone understand his thoughts through the combination of verbal descriptions. ??The dozen or so people standing opposite did not speak, but their eyes when looking at Chang Haonan changed somewhat ??If the idea of ??the person in front of you can really be realized, it will be equivalent to solving the two biggest shortcomings of existing models at once. You should know that although the An-12 and C130 appear to be the same level of aircraft, the performance of the former, especially the take-off and landing performance under heavy load conditions, is far weaker than that of its opponents. The Y8 is limited by the level of the domestic turboprop 6 engine, which is even worse than the An 12. This makes it difficult to compete with the American C130 and the French-German jointly developed C160 in the international market. But its all too good to be true. ?Especially the key step, predicting the ice formation on the wing surface, sounds like a fantasy. Just kidding, even a citys weather forecast is not very reliable these days. Its almost as accurate as direct divination. You actually said that you want to simulate the extremely complex icing process within the scale of an airplane wing? The atmosphere in the data room was silent for a few seconds. Finally, Liang Shaoxiu came to his senses first: So...you said you wanted to find a meteorologist just to do this? Yes, I need to model and simulate the typical climatic conditions common to aircraft during flight, so some knowledge of meteorology is required. ?Chang Haonan nodded and replied. Is it really possible to make very accurate predictions with our current technical conditions? Soon, a second person asked the question that everyone was most concerned about. After all, this idea is a bit of a tightrope walk. Once you understand it, it''s okay. But if you get it out of hand, it will become good steel to use on the back of the knife. ??In case the heat source distribution is completely unrelated to the actual ice accumulation situation, it will even be inferior to the original stupid method. Comrade, dont panic. Chang Haonan smiled and raised his palm, making a downward movement: I will talk about my specific ideas later. Youd better prepare paper to take notes, because there is a lot of work that requires your participation. ?His confident posture and tone obviously affected other people. After a brief noise, a dozen engineers had already picked up their notebooks and raised their heads to look at the drawing board again. Wing icing can be divided into two independent processes. ?Seeing that everyone was ready, Chang Haonan immediately got to the point: First, supercooled droplets or ice crystals in the air adhere to the surface of the wing and flow. This is a fluid mechanics problem. The second is that the liquid droplets captured by the wall undergo a phase change and form flakes of ice accumulation on the surface of the wing. This is a thermodynamic problem. "Although strictly speaking, if these two processes are considered together, it will be an unsteady process, but in the calculation and simulation process, a quasi-steady calculation strategy can be used. That is, the air flow field and the water droplet flow field are only calculated There is a one-way coupling, and both flow fields are considered unchanged when performing phase change calculations." Based on this principle, the entire calculation process can be divided into the following steps. ?Chang Haonan wrote a big (1) on the white paper next to him. First, generate the computational mesh required for flow field solution on a clean geometry or icing geometry. Secondly, the flow control equation is used to simulate the flow around the aircraft, and data related to the movement and icing of water droplets, such as the velocity field, air shear stress at the wall, pressure gradient, and convection heat transfer coefficient, are obtained. "Then, based on the air flow field, the movement trajectory of the water droplets is solved to obtain the impact characteristics of the water droplets. Based on the air and water droplet flow fields, the ice thickness of each control unit on the wall is solved through the icing heat and mass transfer model. Finally, the ice thickness is used to calculate the new ice geometry. Of course, because we only need to consider the de-icing problem, the fourth step does not need to be done. "Based on the numerical simulation of icing, the numerical simulation of anti-icing needs to calculate the wall and water film temperatures with anti-icing heat flow input. At the same time, depending on the anti-icing method, the relationship between gas, liquid and solid also needs to be considered. Thermal coupling process between As the explanation progressed, more and more formulas were written by Chang Haonan. ??The eyes of Liang Shaoxiu and others on the opposite side also gradually changed from curiosity at the beginning to confusion, and finally turned into shock and shock! They understood. Not only did I understand it, I even thought it made sense and was feasible! (End of this chapter) Chapter 153 Multibody dissipative particle dynamics Chapter 153 Multi-body Dissipative Particle Dynamics Sounds like...its really possible? If it can be done, then our aircraft will be very powerful... ?After the previous explanation, Liang Shaoxiu and others also abandoned their skeptical attitude. ?Of course, just because you understand something, doesnt mean you know how to do it. ?It''s like answering questions in middle school. It''s one thing to be able to understand the answers, but it''s another thing to be able to do them yourself next time you encounter them. ?Most people with ordinary engineering background are not very proficient in mathematics and physical theory. From an objective reality perspective, even if there are people who can truly integrate scientific theory and engineering practice and make innovations and breakthroughs, it will be difficult to retain them given the conditions in Nanzheng. ??Its not that Nanzhengs geographical and climatic environment is not good, the key is the scientific research conditions. Who can stand it if one thing is outstanding and the other is not available? So it is still necessary for Chang Haonan to complete the previous part of the model algorithm, and then the engineers of Factory 182 will complete the subsequent testing, analysis and parameter adjustment process with a large workload. Thats it, Commander Liang. After explaining his basic ideas, Chang Haonan took two steps forward and put the pencil back on the table: Help me find a few people who are skilled in computer graphics. It doesnt need to be too many, just four or five. Lets electronically design the main wing and horizontal tail first, so that we can do numerical simulations of related issues later. ?However, Liang Shaoxiu looked troubled when he heard this question: "This...I''ll try my best. Even including myself, I''m afraid there are not many people who are skilled in computer graphics." Chang Haonan was dumbfounded for a moment, but he could understand it after thinking about it. Being proficient in using computers and being proficient in using computers to draw are, after all, two different concepts. As big as Institute 601, the digital design team only had twenty or thirty people when it was first established. Later, as Lin Shikuan and others failed to achieve results, this number even dropped a little bit to the seven that Chang Haonan and Yao Mengna had in the past. indivual. The entire computing center is deserted. ? It was not until digital design and manufacturing proved to be of great value in the improvement process of the J-8C that some people were sent back to Lin Shikuan. So far, they have only returned to the original level. ?For many older engineers, they may be able to learn to use computers, but it is already difficult to make fundamental changes in their engineering thinking. The 182 Factory has a serious talent gap. Today''s main force is either too old or too young. In this era of great technological change, it will definitely encounter some difficulties. Its okay to be a little less skilled. Its just a way to learn some experience. In the field of aircraft design, I will definitely take this path in the future. But the candidate must at least ensure that the work is done seriously and meticulously. This kind of basic work must not go wrong, otherwise the whole thing may have to be overturned later. Although Factory 182 has a relatively weak technical foundation, its work efficiency is still worthy of recognition. Within a few days, according to Chang Haonan''s request, Professor Lin Guofan, who had long-term cooperation with them, was invited from Jincheng University. Even if an expert is invited from outside the aviation system and has long-term cooperation and is authorized to access classified military-related projects, it is impossible for him to be casually allowed into the data room that is almost being used as an office. So Chang Haonan met Lin Guofan in a conference room with relevant information. Hello, Professor Lin. The two people who met for the first time shook hands. I dont know who this is... ?Beside Lin Guofan, there was another woman who looked less than forty years old. I am Guofans lover, Zhu Lan, who is also a professor at Jincheng University and studies surface physics. I heard from him that your topic this time is related to my research direction, so I also came here with the above application. Then, thank you both. The three of them quickly ended their simple greetings, and then Chang Haonan put the information on the table and spent about 20 minutes briefly introducing his thoughts on the prediction of wing ice accumulation. The two professors looked at each other, and finally Lin Guofan spoke first: Comrade Xiao Chang, you dont mind if I call you that. Chang Haonan shook his head slightly to indicate that it didnt matter. It does make sense in theory to calculate the phase transition through kinetic and thermodynamic means when the properties of supercooled liquid droplets or ice crystals and the parameters of the aircraft wing are known. Im afraid there will be some difficulties in implementing it. Compared to Liang Shaoxiu and others, Lin Guofan and Zhu Lan are much more proficient in this area, so they can immediately take into account many details that laymen do not know. When an aircraft encounters moist and cold air during high-speed flight, the first problem is the impact of droplets on rough solid surfaces. Although it is true that the VOF or LSM method can be used to calculate the wing surface after Euler grid or Cartesian grid processing, but for large deformation problems such as high-speed impact, the numerical simulation system cannot guarantee that it can be calculated on all grids. A well-posed interpolation function can be constructed. Even if this step is forcibly completed, when the grid is deformed, it is difficult to ensure that the deformed grid is not singular. " Not to mention that if you want to find a numerical solution to the N-S equation in this case, the amount of calculation is quite exaggerated. Even with supercomputing, it may take several years to complete. ??Lin Guofan finished a long paragraph, and Zhu Lan next to him helped her husband to smooth things over: Perhaps Comrade Xiao Chang has any new ideas on the problem of liquid-solid surface interaction? In this case, we can exchange research content. ?The atmosphere suddenly fell into an eerie silence for a moment. Chang Haonan, who was sitting diagonally across from the couple, did not react immediately. Comrade Xiao Chang? ?Zhu Lan asked softly again. Chang Haonan''s daze only lasted for a very brief moment before he recovered, making Zhu Lan even doubt whether he had seen it wrong just now. Oh, what Professor Zhu just said is right, I do have a new idea to calculate the surface interaction of liquid-solid high-speed impact. "ah?" ?This time it was Lin Guofan and Zhu Lan''s turn to be confused. ?Especially the latter. What she just said was just to make her husband''s rebuttal seem less blunt. She didn''t really think that Chang Haonan would have any in-depth research on surface physics. In the end, people really have it? Thinking of this, Zhu Lan couldn''t help but pay more attention to the young man in front of him, and his expression gradually became serious. Actually, Chang Haonan did not. He really almost overturned the car just now ??Although I have accumulated 260 scientific research points by completing several large projects in succession after my rebirth, people are always greedy. In addition, Chang Haonan has indeed completed a lot of projects by his own ability in the past few months without relying on the system, so he began to think about whether he could gather the wool of the system. ?After forming a closed-loop idea, if you want the system to provide more specific research methods, you need to spend scientific research points. If time is urgent and you want to get the answer directly, you will even have to spend 10 times the points. But before that, the system will make a judgment on Chang Haonan''s idea. If it is not feasible, it will directly prompt that a closed loop cannot be formed. If it is feasible, it will ask whether to spend scientific research points. And this free feature is actually priceless. Because it can at least determine the general research direction without going wrong. ??If the paid version system is a perfect tutor that responds to requests and provides guidance, then the free version system is a pure tutor who gives you a research direction and then no longer cares about you. But its better than nothing. So this time, Chang Haonan used this method to confirm that his thinking was correct, and then prepared to see if he could solve a problem that was not his area of ??expertise by himself and limited foreign aid. The result... Of course, he decisively spent 30 points to restart the plug-in, and then used a light cough to cover up the momentary abnormality that his brain had just received when it received a huge amount of information. Then he spoke again: As Professor Lin just said, the VOF method and the LSM method are based on the assumption of fluid continuity, and their physical basis is the N-S equation. They do have shortcomings when dealing with the situation where supercooled droplets freeze after impact with solids. But we can completely change our thinking and use the multi-body dissipative particle dynamics method to conduct numerical simulation research on this problem based on Newtons mechanical equations and dissipation-fluctuation theorem. I dont know...what do you think, Professor Zhu? (End of this chapter) Chapter 154 Universal ice accumulation model Chapter 154 Universal ice accumulation model Multi-body dissipative particle dynamics ?Zhu Lan repeated the noun and raised her hand to straighten her hair. This is an unconscious action she does when she is thinking. As a professor of surface physics, Zhu Lan has naturally been exposed to computational simulations related to molecular dynamics very early. This naturally also includes dissipative particle dynamics (DPD), a numerical simulation method that has only been proposed in recent years to deal with mesoscopic particle motion. But what is this multi-body dissipative particle dynamics? The elementary particles in DPD are not originally single atoms or molecules in molecular dynamics, but coarse-grained particles that represent molecular groups. Since it eliminates the trouble of describing all molecules in molecular dynamics, the degree of freedom of the system is greatly reduced, and the amount of calculation is also reduced exponentially. It is very suitable for research at the mesoscopic scale or the macroscopic scale of a certain scale. ?However, this "certain scale" refers to 100nm in the field of molecular dynamics, and will not exceed the order of 1m at most. ??If multibody means to continue to expand the scale of research, then it means increasing the number of molecular groups that need to be studied, which is contrary to the original intention of establishing the DPD method... Unable to resolve her confusion, Zhu Lan finally decided to "not be ashamed to ask" - neither she nor Lin Guofan were from within the aviation industry system, so they naturally had no impression of the name Chang Haonan. So in their opinion, the person in front of them should be just a young engineer from Factory 182 who is mainly responsible for improving the deicing device of Yun 8. At least thats the case for now. Okay, is there any relationship between the multi-body dissipative particle dynamics you are talking about and the dissipative particle dynamics I am familiar with, and what is the difference? In fact, at this time, Chang Haonan had just sorted out the knowledge that suddenly poured into his mind. Regarding the basic principles of MDPD, he only knew about the basic principles of MDPD about two minutes earlier than Zhu Lan, who was sitting next to him. The biggest difference is that MDPD has transformed the state equation and obtained a new control equation based on it. "The conservative force in DPD is a purely repulsive force, and its size decreases as the distance increases. Particles controlled by such a force will continue to move away from each other and eventually fill the entire calculation space, forming a mass of density, temperature and other substances with uniform thermodynamic properties. After speaking, Chang Haonan took the pen and paper from the side and wrote down the state equation of DPD. ?p=kT+A^2 The reason for doing this is not only to make it easier for Lin Guofan and Zhu Lan to understand, but also to deepen Chang Haonan''s own understanding and to sort out the theoretical principles of MDPD. "The highest-order term of the fluid density in this equation of state is a quadratic term, and the equation of state used to describe the internal pressure of the liquid needs to contain the cubic term of the fluid density. Therefore, this form of state equation cannot essentially be numerically simulated with Fluid systems with free liquid-gas interface. Hearing this, Zhu Lans eyes suddenly lit up: Although Chang Haonan has not introduced any new knowledge yet, he was able to clearly explain DPD, which is still a cutting-edge theoretical framework so far, and directly pointed out its biggest problem. It is obvious that he has really studied this issue. It is not the kind of civil science who only wants to prove Goldbach''s conjecture after learning 1+1=2, or the novice engineer who wants to get started quickly just by brainstorming. ??If just now, the couple still had a somewhat condescending view and wanted to see how much valuable things such a young engineer could say. ?So now, at least Chang Haonan has been regarded as a colleague who can engage in equal academic exchanges. Lin Guofan next to him also sat up straight involuntarily: So the new method you just mentioned can solve this problem? For Lin Guofan, who focuses on applied research, the significance of this matter is even greater. Because the simulation of DPD is a bit too ideal, it can almost only be used for gaseous systems and full-pipe systems where the fluid evenly fills the entire restricted confined space. In the real environment, there are not many situations that meet these two requirements. Almost all research objects are in open spaces and have free liquid-gas interfaces. Of course. Chang Haonan tapped the pen on the paper in front of him: While researching the literature, I found that by combining cubic spline curves and improving the weight function in DPD, we can obtain a conservative force form that can freely convert attraction and repulsion according to different distances, thus ensuring the stability of the model. Particles can gather together at a certain density to form particle clusters similar to condensed droplets..." After adding the higher-order term of fluid density to the equation of state of the conservative force, the equation of state of MDPD is obtained. Chang Haonan said and wrote down the last step of the calculation process on paper, which is the transformation result of the conservative force equation: ?p=kT+A^2+2Br^4^2(-c) After completing the last symbol, he showed a satisfied smile, and then gently put the pen aside. Based on its control equations, real droplets can be numerically simulated. The two Jincheng University professors are also talented and knowledgeable after all. Although they were a little confused when faced with an unknown concept at first, they quickly grasped the key points. "As long as the trajectory and impact characteristics of water droplets can be calculated, it will be easier to understand the phase change process on the solid surface." After understanding Chang Haonan''s explanation, Zhu Lan''s frowning eyebrows gradually relaxed. Come on: In addition, I think a series of algorithms such as time iteration and boundary condition settings need to be determined later. In this regard..." Obviously, after seeing a brand new dynamic theory, she could not wait to try its application in engineering practice. Comrade Xiao Chang. ?Lin Guofan directly interrupted his wife mid-sentence: If there is anything else we need to do later, you can just assign the work. The theoretical improvement of MDPD and the algorithms involved in the specific implementation process can be completed by me, while the specific design of the aircraft de-icing device can be left to Chief Engineer Liang and his colleagues. Chang Haonan looked at the pieces of paper filled with formulas in front of him and said slowly: But I also want to take a longer-term view, rather than just focusing on the Yun8 model. "That is, use this theory to establish an ice accumulation model that can adapt to different environments and airfoils, or not just wings, but any solid surface. In this way, subsequent users only need to provide the characteristic factors of the environment and By studying the physical modeling of the object, the corresponding ice shape growth process can be obtained. Lin Guofan, who was sitting opposite, was so startled by such an ambitious goal that his breath froze: Do you want to come up with a tool for predicting ice accumulation that can be used worldwide? Be aware that the aviation industry is not the only one that will be affected by ice damage. A variety of fields such as electricity, highways, railways, and construction are actually troubled by this. However, due to the instability of climate conditions, it has always been difficult to predict the time, location and specific form of ice damage, and naturally there is no pre-control. Often only when ice damage occurs or is about to occur, a large number of manpower can be dispatched for inspection and repair. Not only is it inefficient, it is also very difficult and dangerous. ??And if Chang Haonan''s ambition can really be realized, then both in the design process and in the use process, targeted prevention can be achieved. For a meteorologist, it is simply a dream come true. Thats right. Chang Haonan nodded: Of course, we dont need to be so radical at the beginning, just deal with a few typical scenarios within our country. However, the environmental factors here are quite complex, such as inflow speed, droplet diameter, inflow water content, ambient temperature, etc. I dont know much about this aspect. Professor Lin needs to be responsible for research and determination. When he was cheating just now, he tried several different expression methods several times, and found that if all the development processes were completed by himself, it would require too many scientific research points, so in the end he chose to just let the system guide him. Do the most challenging and groundbreaking parts of it yourself. No problem, this is exactly what Im good at. ?Lin Guofan already showed an eager expression: In addition, nationwide work cannot be completed overnight. On-site inspections are required in many places. I can first determine the environmental factors in autumn and winter in the Qinling Mountains to ensure that there are no problems with your finalization work. Nanzheng, where the 182 factory is located, is located in the Qinling region, and autumn and winter are also the periods when wing icing is most likely to occur. Wellthats perfect. ? Chang Haonan just said that he was too self-indulgent in the excitement, and almost forgot to finalize the movement 8F and movement 8J. It is already urgent. Its also a credit to Lin Guofan that he still remembers the needs of Factory 182. As for Professor Zhu Zhu Lan was a foreign aid that was not included in the plan, so Chang Haonan thought for a moment before continuing: "In addition to active de-icing methods such as expansion or heating, it is also important to make the surface of the object less likely to freeze. So I want to test the anti-icing capabilities of materials with different surface structures and roughness. the difference." No problem, we are currently studying the impact of solid surface columnar and hemispherical microstructures on liquid wettability, and some ideas and results can be transferred here. Very good. Chang Haonan stood up and took a deep breath: Then lets start right away! (End of this chapter) Chapter 155 three times the speed of sound Chapter 155 Three Times the Speed ??of Sound ??Being "loaned" to Nanzheng to solve problems before the August 3rd Project was completed was definitely an accident. ??But the turmoil in this world will not stop because of such an accident. ??Just when Chang Haonan was trying to help 182 Factory solve the long-standing problem of wing icing and prepare to give the Y-8 a new lease of life, a new conflict was also brewing in the South Asian subcontinent. The flight briefing room at Parvatipur Air Force Base, Bareilly District, Uttar Pradesh. ? Lieutenant Colonel Sumit Mukherjee, the pilot of the 102nd Squadron, was sitting on a chair, listening to the squadron leader in front of him describing on a map the relevant information about his next mission. As the most special unit in the entire country''s air force, the ranks corresponding to all positions in the 102 Squadron are one or even two levels higher than those of other units. Even among the ordinary ground staff, there are many officers. ? They only had a total of 8 unarmed aircraft - 6 MiG-25RBK and 2 MiG-25RUS. But this is enough. ?Over the past decade or so, the 102 Squadron has conducted countless bold approaches and even cross-border reconnaissance, but no opponent has ever been able to pose even one effective threat to these aircraft. Also because of the characteristics of the MiG-25, this unit is nicknamed "Three Sonics" within the Air Force. ?But today, as a veteran pilot who has experienced many battles, Mukherjee is still full of doubts about the route drawn by the squadron leader. According to the plan, after taking off, he would first fly a certain distance westward, raising the flight altitude to more than 23,000 meters, then turn north over Aligarh, cross the border for about 170 kilometers, and then make an emergency flight. Turn around, fly west again, cross the entire plateau area and enter Kashmir, and finally make a big circle near Iba before returning. Although the range of the MiG-25RB is theoretically sufficient to complete this flight, the range of nearly 1,800 kilometers also means that it cannot use the afterburner mode as desired, and more than 70% of the range of this reconnaissance activity is not within its own airspace. , need to guard against risks at all times. Squadron leader, why cant we divide the mission into two and execute them separately? After listening to the briefing, Mukherjee asked the squadron leader standing next to the briefing board: Or you can take off two planes at once, but thats too extreme. Well, this is what the superior requested, and the order came directly from New Delhi, without specifying the specific reason. ??The squadron leader put down the instruction stick in his hand, walked to Mukherji''s side, and continued in a lowered voice: But I heard that its because the device you hang under the belly of the aircraft can only read and write data a maximum of 6 times before it becomes scrapped, so the higher-ups want to maximize its use every time you take off. The two of them turned their heads almost at the same time and looked at the MiG-25 on the tarmac not far away that was undergoing pre-flight inspection. ?Hung under its belly is a streamlined object that looks a bit like an auxiliary fuel tank, but is larger. So what the **** is that thing and it feels so bad flying with it. In fact, this is another reason why Mukherjee feels a little annoyed. He only knew that this thing was some kind of auxiliary equipment for reconnaissance, but it was definitely not something made by Russia, because the MiG-25 carrier aircraft could only control it to start or stop working through a post-modified lever switch, and could not control it. Make any other adjustments. No pilot would want such a thing beyond his control to exist on his plane. ?Moreover, it will also affect the aircrafts ultimate flight performance, making it impossible for the MiG-25 to break through three times the speed of sound as their squadrons name suggests. The squadron leader shrugged and explained in an uncertain tone: "The Americans sent it, saying that it can conduct radar mapping of the terrain and record all the radar signals scanned." "So this is a pod that can conduct active and passive radar reconnaissance at the same time?" Mukherjee raised his bushy eyebrows. They did not purchase the two radar reconnaissance models of MiG-25RBV and RBS, so in the past they could only conduct daytime optical reconnaissance of targets. ??Although the reconnaissance aircraft itself is difficult to intercept, it is not difficult to prevent simple photographic reconnaissance, as long as the most primitive camouflage method is used. ?Especially because the opponent also has a radar station at an altitude of more than 5,000 meters, which can track them from the moment they take off. Even when facing the MiG-25, they have about 20-30 minutes of warning time. So their main purpose of conducting cross-border flights in the past was not so much reconnaissance as provocation. After all, we suffered a big loss more than 30 years ago. But if there is such a pod, the situation is completely different. ?Most optical camouflage methods are ineffective against SAR radar, not to mention that this thing can also capture the opponent''s radar signal characteristics, which is a very important technical parameter in air-ground confrontation. Yes, the version I heard is that the Americans learned that China has deployed a new anti-aircraft missile regiment in Shigatse. They think it may be S300PMU1, and they want to obtain relevant evidence to put pressure on the Kremlin. The squadron leader continued to talk about some rumors he heard when he went to the headquarters for a meeting: New Delhi hopes that while carrying out this mission, it can also conduct a reconnaissance of our old opponents, especially near the actual control line and...their nuclear plants. Mukherjee stroked his mustache: Sounds like a dangerous place, and theres even an anti-aircraft missile site? "There is nothing you can do about it. If your route is not more radical, they may not turn on the aircraft at all, and the significance of this reconnaissance will be lost." The squadron leader gently patted Mukherjee on the shoulder: Furthermore, that position is still dozens of kilometers away from your route. As long as you keep flying at an altitude above 23,000 meters throughout the whole journey, it is impossible to enter its killing envelope. Whats more, we still have speed, you can save the afterburner just in case. ??The ultimate range of most long-range anti-aircraft missiles is achieved by using high-throw ballistics, that is, after launching, the missile first enters a high altitude, and then falls from the sky, exchanging potential energy for kinetic energy to "smash" towards the target. The advantage of this is that it can ensure that sufficient speed and overload are still retained at the end of the trajectory. But when faced with a target whose flying height is close to the top of the ballistic trajectory, it will perform relatively weakly. The two of them wanted to talk about something more, but saw that the planned take-off time was approaching. I have to prepare for the flight. Mukherjee stood up from his chair. ? MiG-25 pilots have to wear a very complex anti-gravity suit before taking off, so the preparation time is much longer than that of ordinary tactical aircraft. Brother, I wish you all the best. The squadron leader saluted Mukherjee. (End of this chapter) Chapter 156 Multiple interceptions (two in one, 5000 words) Chapter 156 Multiple Interceptions (two in one, 5000 words) ?Later that day, near Mansehra, an important town at the southern foothills of the Hindu Kush Mountains. ??Radar operator Captain Arshad Khan had just completed the change of guard with the colleagues in the previous group and sat on the chair in front of the radar operating desk. As the closest anti-aircraft missile site to the Kashmir region, it has been used as one of the most important nodes in the defense of Iba since the 1990s. It is equipped with a battalion of Hongqi 2B A surface-to-air missiles introduced from China. This model, which had shot down U2 many times, was no longer considered advanced in the mid-1990s. The poor performance of its imitation prototype S75 Dvina in the Gulf War even forced the Chinese Air Force to pull it out again. The easily jammed Type 59 100mm anti-aircraft gun turned the anti-aircraft missile regiment back into an air defense regiment to deal with air threats under strong electromagnetic interference. But in any case, this kind of liquid-fueled, anti-aircraft missile that even needs to be refueled before launch has a pretty good shooting height and range on paper, and the warhead is huge, and it does not need to hit the target very accurately. Since the position itself is about 4,000 meters above sea level, this missile once hit an astonishing height of 28,000 meters in test firings. ??For the Pakistani army, which is still unlikely to encounter high-intensity air threats like the NATO coalition forces, this is already the best anti-aircraft weapon they can use. At least it can provide some practical sense of security to the big shots in Yburgh. ?However, in the past year or two, the situation in Kashmir has obviously eased a lot. This may be because Indias main weapons source country is in chaos and many equipment cannot be repaired and maintained smoothly. ?Arshad yawned, turned around and slightly turned up the volume of the radio placed on the table behind him. ??A match of his hometown cricket team was being broadcast there. After the following rounds of competition, the scores of the two teams increased alternately, and the battle was very fierce. If this continues, the game may fall into a draw. A fellow in charge of communications next to him was also paying attention to the score on the radio, with a bit of regret in his tone: Our start had a great advantage. As two countries with the same roots in the South Asian subcontinent, the discipline of the Pakistani army is basically on par with that of its old rivals. It is not a big deal to slip out of the army while on duty. As a result, as soon as the correspondent finished speaking, the home team of the two players completed a beautiful pitch and successfully sent out one of the opponent''s batters. I think if you say a few more depressing words, we might win. ?Arshad joked with his companions and glanced back at the radar screen out of habit. A bright spot appeared on the screen and he suddenly became excited: Wait a minute, theres a signal near the eastern border. What boundary? The next round hasnt started yet. The correspondent was still immersed in the game. It was not until Arshad turned off the radio that he finally came back to his senses: Eastern border? Then why are you so nervous? The east side of Kashmir is the border area with China. It is basically in a state of complete free rein. Their focus is still near the military demarcation line. This is also where the other side''s air force most often carries out cross-border provocations. But the altitude of this plane is 18,000 and the speed is 1,100. ?Arshad stared at the radar screen and frowned slightly. ?This is by no means a height and speed that a civil aviation aircraft can reach, but judging from the trajectory of the other party, it is indeed just flying along the border line in a regular manner. Maybe its a Chinese Air Force fighter jet patrolling The correspondent''s voice became softer and quieter midway through his speech. It was obvious that this explanation was difficult for even him to convince. We have served here for 6 years. How many times have you seen their fighter jets in this position? ?Arshad rolled his eyes: No matter what, let the launching unit prepare first, refuel in advance, and then notify the battalion commander. An important upgrade of Hongqi 2BA is the improved fuel tank. Although it still needs to be filled with fuel before use, it at least increases the lifespan. Therefore, the permission to refill the fuel command is delegated from the battalion commander himself to the officers on duty. ?Of course, the launch order must still be issued by the battalion commander. The combat command room suddenly became busy. By the time this series of command and reporting processes were completed, the aircraft had already flown close to the actual control line. Hope its just a false alarm ??The correspondent sat back in his chair and muttered to himself as he looked at the bright spots on the radar screen. Almost as he said it, the target that was originally flying along the border suddenly changed direction and headed straight towards the north side of the southeastern dividing line. ?Feeling a little dizzy, Arshad suppressed the urge to gag his fellow countryman''s mouth and ordered in a deep voice: "Quickly notify Peshawar Base and Kamla Base and let them prepare to intercept the target!" ?At the same time, Lieutenant Colonel Mukherjee, sitting in the cabin of the MiG-25RB, was happy because his little cleverness just now worked. He did not rush directly into Pakistan''s actual control area from the northernmost part of Kashmir. Instead, he disguised himself as a patrolling Chinese fighter jet and suddenly turned the direction of the plane''s nose when he was about to reach the actual control line. About a minute after he crossed the border, he received a notification that he had been tracked by an S-band fire control radar. The RWR (Radar Warning Receiver) showed that the source of the threat was SNR-75, but Mukherjee knew it was definitely It''s the kind of Chinese imitation model. Just about 30 minutes ago, another radar with almost identical signals scanned him, but it was too far away to complete the lock. Obviously, the legendary S300 does not exist. He made an extra circle because of an air defense system that may just be an improved SAM 2, wasting nearly half of the fuel and nearly an hour. Fortunately, I deceived them, otherwise it would still be a bit dangerous to rush directly to the anti-aircraft missile position... The lieutenant colonel said to himself happily. ? He ??certainly could not have known that the sluggish reaction shown by the other party was simply due to the radar operator''s negligence. Within a few breaths, the MiG-25 climbed to an altitude of 22,000 meters, and the speed was still maintained at around 1,100km/h. Due to tight fuel, Mukherjee could only turn on the afterburner at the most critical moment. The Pakistani missile operators on the ground showed incredible efficiency and completed launch preparations in the shortest time through various operations that did not comply with the manual. ??The commander of the air defense battalion was still reporting for instructions, but he found that the MiG-25 still had no intention of turning after crossing the entire Kashmir, but continued to rush towards Ibao. He only hesitated for half a second at most before giving the launch order. From the hexagonal launch position, two missiles shot straight into the sky with thunderous sounds and dazzling firelights. Solid fuel boosters can give missiles good acceleration capabilities. Although highly toxic nitrogen-containing fuels are inconvenient to use, they at least work for a long time. Inside the MiG-25 cabin, the sound of the RWR instantly turned into a continuous high-frequency buzz, which often meant that the missile had been launched and was flying towards itself. So fast? ?The other party''s reaction speed surprised Mukherjee. He pushed the throttle valve as fast as possible. It was obviously not the time to worry about fuel. The battalion commander in the command room looked hopefully at the two anti-aircraft missiles on the screen that were getting closer and closer to the target. For a moment, he was already imagining the scene when he was awarded the medal. But the good times did not last long. The speed of the target displayed by the radar was getting faster and faster, exceeding twice the speed of sound in a short period of time. 2.2 times the speed of sound? A drop of sweat appeared on the battalion commanders forehead. ? This speed and height obviously indicate the identity of the opponent. This is not the first time that he has had a battle of wits with the MiG-25, but before that, the opponent had only been active in the Pakistani-controlled area of ????Kashmir, and had never been so rampant. If it continues to accelerate, it will be out of our killing range. ?Arshad''s tone was a little annoyed and a little scared: It...will it really fly over Iburg? "No...uh...I mean, I don''t know, I hope not." ??The battalion commander wiped the cold sweat from his head, and the face reflected on the radar screen had turned pale. After all, 2.2 times the speed of sound is really not a number worth mentioning for the MiG-25: Has the aviation force already taken off? Already notified. ?Arshad nodded. ? He ??felt that his battalion commander seemed to be overreacting, and at the same time he secretly made up his mind that if the people above found out, he would truthfully admit his mistakes, and he would never implicate other people under any circumstances. ?However, in fact, he underestimated the seriousness of the situation. In the entire army, only the battalion commander himself knew what his anti-aircraft missile position was protecting. ??It is not Yibao as everyone generally thinks, but a nearby top-secret nuclear industry facility that is currently producing high-purity weapons-grade enriched uranium. ??If something goes wrong there, even if he dies a thousand times it won''t be enough to atone for his sins. But at the same time, Mukherjee in the MiG-25 cabin was not feeling well either. The electronic reconnaissance pod under the belly of the aircraft had a greater impact on flight performance at high altitudes than he expected. Not only was the aircraft unable to accelerate to more than 3 times the speed of sound, it even took some time to break through 2.3 times the speed of sound. RWR can only provide radar signals. In fact, the pilot has no way to know where the missile aimed at him is. After a few seconds of fighting between heaven and man, the huge psychological pressure still caused Mukherjee to make several consecutive sets of small left and right maneuvers. ?At extremely high speeds, even this action caused the aircraft''s overload to instantly exceed 3.5g. Fortunately, the aircraft was strong enough, and Mach 2.3 was far from degrading the performance of the body''s materials due to heat. The missile''s booster rocket motor can only work for a short time, and after that it can only continue to fly to the target through inertia. ?Hongqi 2''s situation is slightly better, but only relatively speaking. The liquid-fueled main engine is really underpowered, and its top speed is not even much faster than the MiG-25. Mukherjee''s actions forced the two missiles to continuously modify their courses, which quickly ran out of energy as they had lost power and were still climbing. ??The air defense battalion commander in front of the radar screen watched helplessly as the two missiles began to drop high one after another, and the closest one was more than two thousand meters away from the target. ?But there is hope He didn''t know why the MiG-25 didn''t use the simplest method to accelerate away, but the few maneuvers just now were not without cost. In addition to causing the target''s speed to briefly drop below Mach 2.0, it also caused the flight direction to change. yaw. ?? Now the opponent needs to make a small radius turn that will inevitably lose altitude and speed in order to re-target Iborg, and this leaves a theoretical interception window for the aviation unit. Correspondents are continuously reporting the situation to Peshawar and Kamra to assist them in directing fighter jets to conduct interceptions. The two Mirage 3EPs of the 7th Squadron and the two J-7Ps of the 14th Squadron had already taken off as soon as they received the report and were approaching the target from two directions. ?A little further away, two F16As of the 9th Squadron have also taken off and are ready to come to assist in the battle. The MiG-25 has a set of camera equipment installed on its nose and does not have a radar, and it is impossible to communicate with the base at such a long distance. Therefore, Mukherjee does not know how many aircraft are on the way to intercept him, but he is After realigning the direction, he made an extremely sophisticated response based on his experience. Climb, not accelerate. ?Including the F16ABLOCK15, no aircraft of the Pakistan Air Force can launch radar-guided medium-range air-to-air bombs, and no aircraft can fly above 21,000 meters. They are destined to be helpless against real high-altitude targets. However, if you increase the speed blindly, on the one hand, it may lead to insufficient fuel; on the other hand, if you are completely blind, you may even hit the face of the intercepting aircraft head-on. ?At that time, it was impossible to save the gods. What a seasoned bastard ? Lieutenant Colonel Mohammed Sami, who was driving the Mirage 3 lead plane, heard the other partys actions on the radio and cursed angrily. He relied on his rich experience to completely guess the opponent''s route. To this end, he took his wingman and made a special circle after takeoff. Now he was almost directly in front of the opponent''s flight direction. If the opponent is a daredevil who is superstitious about speed, then he will enter the missile range in about 3 minutes. The temperature of the MiG-25''s skin when flying at high speed is amazing. Even the older infrared-guided combat missiles can capture the heat on the skin. The heat source does not have to be cut into six o''clock before firing like when facing ordinary targets. But now, he knew that the interception should have failed. Soon, the two J-7Ps trying to pursue the target were the first to give up the attack due to lack of fuel. ?Although the F16 in the distance had captured the target''s signal with radar, the AN/APG66 radar was unable to guide the over-the-horizon attack, so it had to give up. Only Sami and his wingman made a single jump to an altitude of approximately 2,500 meters below the target and fired a salvo of Magic air-to-air missiles. But close combat rounds were not designed to be fired in such an awkward position. Due to insufficient muzzle velocity and the need to climb, the four missiles lost their stability almost as soon as the rocket engines stopped working. The only gain was that the traces of the MiG-25 were captured with a camera gun, which at least saved some for the Air Force. face. A few hours later, several pilots involved in the interception, as well as the commander of the anti-aircraft missile battalion, were gathered together and received from the Air Force Staff Headquarters. It was supposed to be a high-level situation report. Thanks to the desperate launch unit regaining a lot of time, no one knew that Arshad almost missed the target because of a half-game, so although the atmosphere was a bit heavy, the attitude above was generally positive. of. After all, the equipment gap does exist objectively, and it is quite difficult to see each other within visual distance. A short period of time before the meeting, the captain of the 9th Squadron, Colonel Badla Islam, who also participated in the interception, found Sami who was a little lost. Well done, honey badger. The two had served in the same unit for a long time, and Honey Badger was Samis codename at that time. But his superiors obviously prefer Islam who obeys orders, so his official career is much better than that of Sami, and he can always stay in the F16 unit. Forget it, let them run away. Sami was obviously not satisfied with just taking pictures of the target with a camera gun. I think this is not a bad thing. ??Islam whispered into Samis ear and said: Especially at this time. How to say? Sammy raised his head and looked at his old friend next to him. He is a fairly pure pilot, or more bluntly, a combat fanatic, but is far less sensitive than Islam in other matters. When you went to China to attend an air show last time, did you see their new fighter jets? The Xiangzhou Air Show has ended for a few days, and the air show during the opening ceremony has already been spread everywhere. Of course, but what we are looking at is actually another deeply improved version of the J-7. Should I show you its model photos? Islam nodded: Indeed, we have always regarded Chinese equipment as alternatives or cheap substitutes in the past, and the main force of the air force has always been Mirage 3EP and F16. But this time, do you think the big shots in Yburgh still have a choice? The words of his old friend made Sami think. He is just insensitive, not stupid. "Hmm...you mean we might buy higher-end Chinese fighter jets, such as the J-8C?" "But on the one hand, China itself does not yet have radar-guided medium-range air-to-air missiles, and its interception capability may not be stronger. On the other hand, even to deal with the threat of the MiG-25, the introduction of a high-altitude and high-speed interceptor aircraft is very important to us. Doesnt seem like a good choice either. You are right, but these are technical issues. ??Islams tone is a bit hateful: But for our country, the choice of main fighter jets must not only consider technology. The Chinese are much more reliable allies than the United States and France. Thats true. Sammy agreed with this statement. Look, there will be big changes soon. Islam said and patted Sami on the shoulder: General Pervez may go to Kamla Base for inspection in a while. Remember to behave in front of him. Dont be too deliberate. Its enough to let him remember you as a person. Pervez? Sammy was stunned for a moment when he heard the name: Isnt he from the Army? "Don''t worry about it. You must remember this. I have never tricked you before...at least not on the ground." Islam is not a very good pilot. Teaming up with him in an air battle is almost the same as fighting alone. ??However, in all fields other than flying, he has done quite well, and there is nothing to say about his treatment of his subordinates and friends. Well, its true, its up to you. Updates will be added in the afternoon as usual, thank you book friends for your help in recommending ? (End of this chapter) Chapter 157 Save the Army 8 Chapter 157 Saving the Great Military Luck 8 In the following period, with the help and guidance of Chang Haonan, the prediction results of the ice accumulation morphology on the surface of the Y-8 main wing and tail wing were quickly produced. ?In the cold wind of late November and early winter, in the final assembly workshop of Factory 182, a group of people were surrounding the transport 8F that was being pulled out as a research object. Not far from the aircraft, there are two drawing boards on which three views of the Y-8 main wing and horizontal tail are drawn. ??If you look closely, you will also find that there are several irregular lines outlined in different colors around the edge of the wing. Since the problem of wing icing involves flight safety, the work of the entire 182 factory has slowed down during this period, especially the test flight of Y8J, which was directly stalled due to the last second-class accident. According to the schedule, the first two sets of SouShui-2000MS radars purchased from the UK will be shipped back to China soon. Although in the preliminary preparations in the past few years, the radar part has been simulated using equal-weight counterweight models, which verified that the flight performance of the aircraft will not be too seriously reduced due to the installation of radar, it is necessary to install real electronic equipment When getting on an airplane, a series of issues such as energy consumption, vibration, working environment, and electromagnetic compatibility must be considered. These can only be tested by a genius. Hence, if the test flight cannot be restarted when the radar is shipped back to China, it will have a very negative impact on the time it takes for the equipment to become combat effective. ?At one time, some people even thought that they should build a simple multi-stage electric heating device according to the initial plan, and wait until the next model to slowly consider a more complete de-icing system. In the end, Liang Shaoxiu resisted the pressure and fully supported the basic research subjects of Chang Haonan and several others. Only then did he see practical results today. "Comrades, after nearly half a month of work, two professors, Lin Guofan and Zhu Lan, and I have completed the simulation and prediction of the growth of ice accumulation on the wings of the Y-8 aircraft, and have also determined the corresponding heating and de-icing system load. " Chang Haonan''s first words caused a burst of applause in the huge assembly workshop. No matter what attitude the people standing here had towards this research before, since the results have been obtained only half a month later, there is nothing to argue about. ??If you are not worried about the project progress not being able to meet the deadline, who wouldnt want a system that is more effective and can improve flight performance? The four red, orange, blue and green lines in these two pictures respectively correspond to the ice accumulation on the wing section after the aircraft passes through the ice area for 120 seconds under different severe climate conditions. The conditions of Factory 182 are really limited. There are no digital projectors in Beijing or Shengjing. If you use slides, the resolution will be low on the one hand, and there is no way to project such a large drawing, so we have to On the drawing board, let everyone gather around and look at it. So under the worst weather conditions, ice accumulation is mainly distributed on the lower surface of the wing? ?Some people immediately saw the clues. In the mid-1990s, due to objective reasons such as insufficient performance of ice detectors, not to mention China, the world''s research on ice damage during flight was still in a barbaric era. Among other things, even the natural icing test, which has become very popular in later generations and has even become one of the standard procedures for civil aircraft airworthiness certification, does not yet have a particularly unified and scientific standard. ?Americans basically rely on the fact that the temperature in the Great Lakes region is low enough and the water vapor is abundant enough to find similar clouds to fly in. As for other countries, they are even more impressive. Fortunately, the flight conditions of most jet aircraft are already on the edge of the icing area, so the number of air accidents related to ice accumulation in civil aviation is still within an acceptable range, and most of them are regional passenger aircraft such as the ATR72. Smaller general aviation aircraft such as the Cessna 172 will have a relatively limited impact. So the results of this simulation are indeed somewhat counterintuitive to most people. "The flight speed of the Y-8 aircraft is already relatively fast among propeller aircraft. According to our research, when the inflow speed exceeds 75m/s, supercooled water droplets will have a greater impact on the wing surface. There is a probability of impact rollback, rather than normal spreading viscosity, so the upper surface of the wing with faster airflow is relatively clean. "Furthermore, even if ice forms on the upper surface of the wing, since the faster incoming flow speed corresponds to a smaller incoming flow angle, the ice shape will mainly be frost ice without overflow process. The adhesion ability is very poor and the ice surface The shape is very similar to the shape of the wing, and the damage to the life ice is much weaker than that of the leading edge and lower surface. " If this is an aircraft flying at a relatively slow speed, such as the Y-5, then the ice accumulation area to focus on will become the leading edge and upper surface of the wing. Chang Haonans explanation was clear and clear, and the engineers surrounding him quickly understood: So we, or almost all the de-icing devices that were developed based on experience for large propeller aircraft in the past, actually missed the point? Yes, a lot of energy is wasted. ?Chang Haonan nodded, then picked up the pen again and pointed at the horizontal tail part: "Another point is that the degree of ice accumulation on the aircraft will weaken as the chord length of the wing increases. That is, the closer to the outside of the wing, the less likely it is for ice accumulation to occur. This can also explain why ice accumulation occurs on the horizontal tail. Often more serious than the main wing. "According to our research, in quite a few cases, ice on the wing not only does not cause a decrease in lift, but also provides an additional positive pressure area due to the strong vortex formed in the back area of ????the ice. For an aircraft with a normal layout, For example, there will be a strong bowing moment, which is why the previous Y-8J had an accident. " After Chang Haonan, there were Lin Guofan who introduced the impact of meteorological factors on ice accumulation problems, and Zhu Lan who introduced the microstructure design of the wing surface. ?This small-scale seminar held in the assembly workshop lasted until the night of that day, and even dinner was delivered by someone from the canteen. ?As the three people''s explanations continued, a new set of ice accumulation theories was gradually laid out in front of all participants... Then, as long as we provide different de-icing designs in different areas of the wing according to different ice accumulation conditions, we can greatly improve the anti-icing capability and improve energy consumption levels. According to our calculations, after applying the cylindrical surface microstructure designed by Professor Zhu Lan to the leading edge of the wing where the ice accumulation is the most serious, under the working conditions corresponding to these four lines, the amount of electric heating required for each meter of the wing to de-ice The system power requirements are 160W, 465W, 992W and 1430W respectively, while the converted thermal powers of the gas thermal de-icing system are 128W, 402W, 817W and 1265W respectively. Even if a 50% safety margin is considered, it will save 65% of electrical energy and 85% of thermal energy compared to the previous Soviet design. Especially the latter, when the hot gas de-icing device is turned on, it can directly increase the engine output by about 8%! When Chang Haonan said this, he dropped the pencil in his hand on the table in front of him: So, comrades, our next job is to design the corresponding two sets of de-icing devices based on the calculation results, and match them with the internal structure of the wing, so that the veteran Yun-8 can be given a new lease of life! Note: In this chapter, the issue of flow velocity on the upper and lower surfaces of the wing is explained using Bernoulli''s principle (high flow velocity brings low pressure) that appears in middle school textbooks. But strictly speaking, people still don''t fully understand the question "why airplanes can fly." There are several different schools of thought regarding the specific source of wing lift. (End of this chapter) Chapter 158 You must do the airworthiness certification yourself! Chapter 158: You must do airworthiness certification yourself! After obtaining the most difficult basic research results, Factory 182 is naturally capable of completing the work of improving the de-icing system and wing structure design on its own. It is an aircraft design and manufacturing group with a design department. It cannot rely on outsiders for such basic work. ?However, this does not mean that the work of Chang Haonan, Lin Guofan and Zhu Lan has come to an end. Because like all other aircraft design work, the anti-ice capability also needs to be tested. ?So a few people had to face the same situation as when the Turbojet 14 was doing ground stability testing before - there was no test standard. And this time its not just domestic standards that dont exist. As mentioned before, in the mid-1990s, everyone was relatively unrestrained in dealing with aircraft anti-icing. Only the United States Federal Aviation Administration (FAA), which had the best testing conditions, had a set of anti-icing and airworthiness regulations in the FAR-25 part. sexual requirements. As far as I know, the only domestic aircraft that has undergone systematic icing tests is the Y-12B, which was conducted in the United States in 1986. ??Liang Shaoxiu gently stroked the stubble on his temples and said to the other three people sitting at the conference table: "A few years ago, I heard the engineer who led the team give a report. The whole process was very bumpy, and I was often deliberately made difficult by them. The verification process can also be said to be... full of dangers." "The content of their airworthiness test is not perfect. In many cases, they rely on the intuition of random meteorological engineers to get into whichever cloud group is more pleasing to the eye. As for the evidence collection of the icing and melting process, it is even different from ours. The original method is similar, it is done with several cameras fixed on the outside of the aircraft. Chang Haonan shook his head: "After all, the Y-12B is just a 5-ton, 20-seat, small aircraft with a maximum speed of 300 kilometers, and it is not in line with mainstream aircraft levels. The market prospect is very limited, so as long as you spend money, the FAA will not be too stuck. But this is not a long-term solution after all. Lets not mention that the Y-8 is a military model. If we want to build an aircraft to compete with Boeing in the future, will the FAA continue to provide us with airworthiness certification? ? Having passed the turbojet 14 engine test before, he finally established China''s own aviation industry standards through the Commission of Science, Technology and Industry for National Defense. It is definitely impossible to go back to the Americans for work. ?But before Chang Haonan could further express his thoughts, Lin Guofan next to him couldn''t hold it in any longer: "Not only that, I have been studying air crashes that have occurred in various countries around the world due to weather problems. In the past three years from 1994 to now, there have been seven or eight air crashes in the United States alone due to icing on the wings, and the accidents are even more No less than a hundred times, there is clearly a disconnect between the FAAs airworthiness requirements and the actual situation. On the other hand, FAR25 only stipulates what an aircraft should do but does not stipulate a more specific how it should do it. For aircraft designers and pilots, the guidance is not clear enough. As a meteorologist who is involved in the aviation industry to a certain extent, the latter has the deepest understanding of this aspect among the few people - In many cases, when a person studies too deeply in a certain field, he sometimes ignores the macro vision of the entire industry. On the contrary, interprofessional researchers will have some advantages in this regard. I think that in the foreseeable future, we should be unlikely to sell Y8 to the United States, and more importantly, the research we did during this period is exactly in this area. I think we can refer to the FAAs requirements. , and come up with a more complete and guiding standard based on my countrys actual situation! ?Lin Guofan''s eyes almost glowed when he said this. After people reach a certain stage, they will always have some pursuits other than material things. In fact, there are not many opportunities to become famous in the field of traditional meteorology. You still have to follow the general trend and participate in some key projects and projects. In the past half month, he felt that he had at least found the right direction. Conduct ice accumulation morphology simulations across the country and even the world! As long as Chinas aviation industry continues to develop, it must cross the safety hurdle. ??If you think more broadly, the objects of analysis are not necessarily limited to aircraft. High-rise buildings, transmission lines, bridges and tunnels, etc. are all within his business scope. ? It may be a bit too much to say that your name will go down in history, but you can still hope to leave a strong mark in the industry and have your name appear in future textbooks. Its exciting just thinking about it. Chang Haonan opened his mouth and looked at Lin Guofan opposite him with some surprise, who seemed to be trapped in his own world. ?The other party has already said everything he wants to say. Simply a perfect replacement. ?According to his experience, if a man shows that kind of intoxicated expression, it is most likely that he is in some YY secondary plot, where he becomes famous and even saves the world. There is no way, a man is a young man until he dies, and it is not like he has never had sexual **** with something similar before he is reborn. ??The somewhat awkward atmosphere lasted for a few seconds until Zhu Lan, who couldn''t stand it anymore, reached out and quietly pinched her husband''s waist. If thats the case, I think we can let Dr. Chang be the first person to complete the project and apply to the Science and Technology Commission for a big project. Liang Shaoxiu is quite familiar with this method of playing in the aviation system. Their 182 Factory is now almost at a critical moment of life and death due to lack of funds and talents. If they can get such an eye-catching project, they will definitely get some funds and policies. of tilt. But after saying that, he felt a little guilty. For such a big job, even if Chang Haonan or even Du Yishan''s names were guarantors, the superiors would probably not trust them to hand it over. ?So Liang Shaoxiu gritted his teeth again: If it really doesnt work, we can also bring in the 603 Institute. As far as I know, the MA-60 project will go to the United States next year for airworthiness certification testing according to the original plan. "etc" Zhu Lan, who had been silent just now, seemed to have heard something extraordinary: You want Comrade Xiao Chang to be the first person to complete the project? Will this..." As a professor-level figure in the same mixed system, she naturally knows all about the twists and turns. Although Zhu Lan now fully recognizes Chang Haonan''s ability, in her opinion, if you want to apply for a project from above, it is best for the first person to complete the project to have a more influential name, so that the approval process will be much faster. . ??Although she couldn''t think of anyone in Factory 182 who could be called "influential," Chang Haonan in front of her was a bit too young anyway. Of course Liang Shaoxiu next to him could also understand what Zhu Lan meant. At this time, Chang Haonan must not be allowed to explain himself. ?Then you are bragging yourself and looking less than decent. So he quickly interrupted Zhu Lan in mid-sentence: Professor Zhu, you dont know something. Comrade Changs mentor is Academician Du Yishan. Furthermore, Comrade Chang himself is already the first completer or co-first completer of several key projects of the Science and Technology Commission. ?The conference room fell into silence for a moment. ?Zhu Lan and Lin Guofan first looked Chang Haonan up and down, and then looked at each other in unison So it turns out that the young geniuses we always thought were the real talents? (End of this chapter) Chapter 159 natural freezing test Chapter 159 Natural Freezing Test Ahem Even though Chang Haonan was quite thick-skinned, he couldn''t bear the three burning glances, so he quickly continued what Liang Shaoxiu had just said. Im afraid that the FAA approval of Xinzhou 60 will be put on hold. The 603 Institute is now in contact with a European company. As for the airworthiness certification work... with the participation of European companies, we can strive for EASAs airworthiness certificate. But as I said just now, when it comes to standards, we dont rely on others for anything, so we must still focus on ourselves. As someone who has indirectly participated in the design of MA60, he will still have a clear idea of ??the future direction of this project. In 1997, it failed to get airworthiness certification from the FAA. After that, it could only be used in China and a few third world countries for many years. In the end, my grandma didn''t care about it, and my uncle didn''t love it. It was rejected even if it was used as a patrol aircraft by the Coast Guard - like this The plot that happened on the original timeline cannot be repeated in this plane. Originally, Chang Haonan had been worrying about what kind of entry point he would use to make today''s China Aviation Industry give up its dog-licking behavior towards the FAA. However, during the previous turbojet 14 test, that phone call came from the Commission of Science, Technology and Industry for National Defense. It seems to have solved the problem for him. ? He ??heard Du Yishan say that the focus of the Shanghai Aircraft Manufacturing Plant''s production of MD90 aircraft has changed from "accepting and learning the full set of American aviation industry standards" to "digesting and absorbing key technologies and accumulating experience in the final assembly and manufacturing of large civil aviation aircraft." Considering that AgustaWestland has begun negotiating specific model cooperation matters with China Aviation Technology, the future development focus of the MA-60 should shift to Europe. Thats good, thats right! ?Lin Guofan is excited again. He is now as enthusiastic about formulating independent standards as Chang Haonan: "Standards can only be developed and improved through continuous practice. After all, the Y-8 is a military transport aircraft. Many of its design orientations are different from those of civil aviation. It is impossible to completely transfer its test flight experience to other aircraft. Not conducive to further promotion. So it would be great if we could have a serious civilian model like the MA60. In fact, what he is talking about is the issue of military standards and civilian standards. Although the two can be the same in many places, there will be some differences after all. ?For example, military aircraft can accept higher performance at the expense of certain reliability, and the indicators of environmental protection, emissions, and economy are not strict. The civilian model is completely different. Anyway, lets start with the natural icing test. Chang Haonan tapped the table lightly with the pen in his hand, and finally brought back the thoughts that several people had just let go: To form a set of universal standards for the entire aircraft that meets the requirements for all models is completely different from conducting icing tests on only the wing part of a single model, and the workload must be at least one order of magnitude greater. We have to solve the two problems of what to test and how to test at the same time, and at the same time, we must try our best to provide some guiding data and opinions on anti-icing work. Once we talk about practical issues, we need to think more rigorously, and we definitely cannot talk as freely as when we were just thinking about the future. The four people began to think about the next plan from their own professional perspectives. Actually, Chang Haonan had a bigger ambition that he had not yet said - In the mid-to-late 1990s, Europe and the United States experienced a series of air crashes caused by ice accumulation, which even affected public confidence in the civil aviation industry. Especially Europe. This is a critical time period. ??The newly formed EU is not the brain-dead organization it was more than 20 years ago. European countries, including the United Kingdom, are still somewhat conciliatory and unwilling to follow the lead of the United States on the other side of the ocean. In this matter, China and Europe have common interests. So he wants to use the natural icing test, an airworthiness certification project that has a great impact on flight safety, as a breakthrough to try to promote comprehensive equivalence and mutual recognition of the two sets of standards of CAAC and EASA through AgustaWestland. ?If successful, it means that aircraft models that obtain airworthiness certificates in China can be sold directly to Europe in the future. Taking into account the demonstration effect of EASA, probably there will be no worries about sales in places other than North America. It can be regarded as a milestone development for China Aviation Industry. After ten minutes of careful consideration, Lin Guofan, who regained his composure, spoke first: I think we still need to determine a basic work process according to the priority of things. Thats fine too. Liang Shaoxiu said and took out a piece of paper from the side: We have now identified several main factors that affect aircraft ice accumulation, so the next step is to determine the airspace and atmospheric conditions requirements for natural icing test flights, such as temperature, water droplet diameter and liquid water content, based on this. " Chang Haonan then continued to add: "Regarding this, it is best for Professor Lin to study the distribution of ice accumulation in our country at different time periods and at different heights in advance, compare it with foreign climate conditions, and set several different anti-icing levels, otherwise there will be nothing. Isnt it a joke if we set standards and the test cannot be completed in our own country? In fact, the reason why natural icing experiments in later generations are almost monopolized by the FAA is that, in addition to their earlier research in this area, another big reason is that the natural environment is suitable and the weather forecast is accurate. ?It is very difficult to prevent the aircraft from accumulating ice at all. ??But it is more difficult to get the aircraft to accurately accumulate ice according to preset conditions. It cant be too cold or too hot, it cant be too dry or too humid, the air flow cant be too strong or too weak In short, the Great Lakes region is basically the place with the highest ice accumulation frequency in the world. This is certainly not a good thing for flight safety, but it is a treasure trove for flight testing. A test that would take months to complete elsewhere could be completed in a week at the FAA. ?As far as the situation in China is concerned, there is definitely no such a chosen place as the Great Lakes region, but it is definitely not impossible to find an airspace that meets the conditions. If you dont have enough talent, you have to work hard to make it happen. Then we can only rely on meteorologists to make accurate forecasts. Dont worry, my research team has been tracking the climate conditions in northwest China for nearly 20 years, and we still have some experience in these aspects. ?Lin Guofan waved his hand rather boldly and took over the job. Then, our 182 factory, and the 603 factory that may join in the future, can be responsible for designing a standardized aircraft parameter measurement system... I could continue my research on passive de-icing methods Oh, by the way, I almost forgot the most important thing. The application for the natural freezing test project must be submitted as soon as possible, otherwise by the end of the year, all projects will be busy being reviewed, and it may be postponed until next year. ?Chang Haonan reminded Liang Shaoxiu next to him. "no problem." The latter nodded: I will start preparations after I go back today and try to get the project completed before mid-December! Thats it, lets go back and complete the preliminary preparations first. This matter cannot be rushed. It should require the cooperation of many brother units later. The meeting is dismissed! (End of this chapter) Chapter 160 AgustaWestland wants in-depth cooperation! Chapter 160 Agusta wants in-depth cooperation! Liang Shaoxius project application was quickly submitted to the Commission of Science, Technology and Industry for National Defense, and was also copied to 603 institutes, inviting them to participate in standard formulation and airworthiness certification work. This time, the Science and Technology Committee''s mentality has been much calmer. They did not gather the aviation leaders of the entire imperial capital for a meeting in a small dark room. Ding Gaoheng only organized an internal discussion. Furthermore, after the last route dispute, "establishing one''s own aviation industry standards" has become the main tone recognized by the top, so naturally there are fewer heated debates. The main concern for everyone is that in such a short period of time, the aviation industry has submitted a second application for the establishment of a new national standard. "Director Ding, our main certification team is currently at the 624 Institute to follow up on the GJB/Z64A-96 standard for aviation engine stability testing. If there is a new task at this time, I am afraid it will have to be dominated by the aviation industry system''s own people. , this 182 factory was originally a backup for the 603 institute and the 172 factory. I am worried that their technical strength cannot keep up with the requirements..." For these big guys in the front row of the Science and Technology Commission, this is definitely a happy trouble. In the past, their daily routine was to worry about not having enough money, not having enough technology, and not being able to pass the project... ?This is the first time that I have worried about too many excellent projects like today. Then are you considering letting 603 Institute take the lead Someone has come up with the simplest solution. ?However, it soon encountered opposition: "But Nanzheng has already completed a lot of preliminary work. If we step in midway and hand over the project leadership to others, what do you want the factories in the aviation industry system to think?" I dont think I need to worry about technical capabilities. Ding Gaoheng smiled and waved his hand, which showed that he was in a good mood during this period: You can take a look at another project description submitted by Factory 182 to see who was the first person to complete it. There was a sound of paper turning in the conference room. Chang Haonan Because the last closed-door symposium was very tight and high-level, most people present did not participate, so the name may not have left a deep impression. However, there is one person who is obviously always paying attention to Chang Haonan''s development trends. That was Zhou Lin, who had met him once before: Chang Haonan is a student of Professor Du Yishan of Beijing University of Aeronautics and Astronautics. He was the first person to complete the Testing and Evaluation Method of Aircraft Engine Inlet Distortion submitted last time from 624 Institute. Isnt that right, Director Ding? Ding Gaoheng picked up the tea cup and took a sip of water, while nodding leisurely: Thats right. People on both sides of the conference table looked at each other. Are they the same person, or...the same name? Its no wonder that some people would ask this slightly strange question. Although aerodynamic stability and aircraft environmental tolerance both involve the field of aviation safety, they are not closely related. And more importantly, there was only about three months between the two events. No way? Can anyone really complete two pre-research plans with different directions in three months? "It should be the same person. This name... doesn''t seem to be very common, and the work unit written above is also Beijing University of Aeronautics and Astronautics." Someone turned to the end of the project description, where the basic information of all the main participants was written. Hearing various expressions of wonder and disbelief coming from around him, a smile appeared on Zhou Lin''s face. After all, if we really want to talk about it, she also had a share of the credit for enabling Chang Haonan and inserting him into the aviation industry system. If the latter can do more good things, she can easily take credit for it. If he can produce the same quality of work as the previous evaluation method, then there will be no problem in letting 182 Factory take the lead with such a person in charge. "In addition, I propose to transfer some technical personnel from Bingcheng who have participated in the Yun-12B project. Although our standards are different from the FAA, our experience is always the same." But at this time, it is not possible. In case someone comes up with some other ideas: "Although I don''t really want to think about this possibility,...will it involve some academic ethics issues? After all...it is indeed a bit unbelievable." Although this sentence is not very straightforward, it is obviously suspected that the aviation industry department is trying to gain the reputation of Du Yishan''s close disciples. Everyone. ?At this time, Ding Gaoheng knew that he had to stand up and express his position: "Judging from the several projects that Comrade Chang Haonan has participated in, the progress has developed by leaps and bounds only after he joined, and the relevant units involve multiple agencies such as 601, 606, 624, etc., so there is no evidence for this Its better not to talk about it casually. Even if its our internal meeting today, it may affect our unity. Moreover, people who engage in basic theoretical research have achieved success in multiple seemingly unrelated fields at the same time. It is not unprecedented in the history of our country to have such all-rounders. After saying this, the atmosphere in the venue suddenly stopped. ?Those who can sit here will naturally know who Ding Gaoheng is referring to. The only aerodynamics and applied mathematician Guo Yonghuai who has participated in three major projects, including two bombs and one satellite, at the same time. On December 5, 1968, while returning to Beijing from the test base, he died in a plane crash. ??This air crash can be said to be a major setback in the field of my country''s aerospace theoretical research. After a long time, a voice sounded again: Comrade Yonghuai died in a plane crash, and the projects our new generalist, Comrade Chang Haonan, is responsible for, whether it is aero-engine stability or aircraft anti-icing, happen to involve aviation safety. It can be regarded as a kind of inheritance... ?This sentence finally livened up the dull air a little. "The airworthiness certification work for aircraft anti-icing and de-icing has been decided as follows. Factory 182 will take the lead, with Institute 603, Factory 172 and Institute 602 assisting." Ding Gaoheng tapped the table with two fingers: In addition, report to the higher authorities and ask the meteorological department and the Air Forces air traffic control unit to cooperate. As long as the aircraft takes to the sky and does not affect the safety of the route, the airspace application related to this project must be given a green light! Director Ding, there is one more thing. Just after Ding Gaoheng made his decision, a deputy director in charge of external technical cooperation came over and said: The model that 603 participated in the airworthiness certification is the MA-60. During the previous air show, AgustaWestlands technical staff had decided to cooperate with our aviation technology company after visiting and test-flying the aircraft. The specific form is to invest US$95 million and be willing to be responsible for the development and manufacturing of on-board comfort equipment, such as pressurization, air conditioning, noise suppression and cabin lighting systems, on the condition that they build a final assembly line in Naples. This condition is very sincere, so although some details have not been finalized, the opinion of the Ministry of Aviation Industry is to approve the cooperation. Then when we are engaged in such a big thing as type airworthiness certification, we cant leave Agustas people to do it themselves. It should not be said, but the Italians are good at taking sides. After confirming that the MA60 would surpass the ATR42 in the critical indicator of fuel economy, Finmeccanica Group asked its subsidiary Alenia to cooperate with the French Aerospace Company to develop new models; AgustaWestland, which is mainly responsible for the helicopter business, directly cooperates with the cash-strapped China Aviation Industry. Considering that the MA-60 is already a highly developed aircraft, the latter wisely did not make outrageous requests such as participating in the overall design of the aircraft. Instead, it took over the cabin equipment with China''s weakest capabilities. past. ??Different from civil aviation passenger aircraft and military transport aircraft, comfort is second only to safety in importance, and is probably as important as fuel economy. You may win, but I will never lose. Can Italians be this efficient? Ding Gaoheng was quite surprised. But he made a decision after just a little thought: Since its a passenger plane, theres nothing to hide. The ugly daughter-in-law has to see her parents-in-law. "I think Alenia''s technical staff can be allowed to visit the MA60''s natural icing test and listen to their opinions. However, when negotiating the contract, we must make it clear that the development of the anti-icing system is entirely by We did it ourselves, so the Italians need to follow the instructions. Yes! I will convey it after the meeting. (End of this chapter) Chapter 161 Let our planes no longer fear frost and snow (2-in-1) Chapter 161: Let our planes no longer fear frost and snow (2-in-1) half a month later. ?Nanzheng, at the 182 Liulin Airport under the clear sky. ?Two propeller planes, one large and one small, are parked at the end of the takeoff runway, waiting for weather conditions that meet the test requirements to arrive. ? They are naturally the Y-8F that has been modified, and the MA-60 prototype that transferred from Haojing a week ago. On their wings and tails, red, black and yellow ice thickness scales have been drawn In the case of insufficient accuracy of ice accumulation detectors, data can currently only be obtained through video and high-speed camera capture. Under the leadership of Chang Haonan and Lin Guofan, Factory 182 and the School of Atmospheric Science of Jincheng University have achieved amazing work efficiency. The former took only more than ten days to move the key area deicing system calculated by Chang Haonan from drawings to reality, while the latter has established special meteorological monitoring and control stations in Jincheng, Qinling and northern Xinjiang regions - based on the past few years. After ten years of experience, the above places are statistically the places with the highest ice accumulation frequency in the entire China. ?However, after everyone waited for a few days, the weather was cloudless and beautiful throughout the northwest. Under normal circumstances, this is the most suitable climate condition for flying, but the natural icing test flight is to "face the difficulties" and create difficulties even if there are no difficulties. The current environment seems a bit embarrassing. Everyone, check the functionality of all anti-icing systems on the aircraft again! Liang Shaoxiu held a big loudspeaker in his hand and shouted to the staff on the other side of the plane. Mr. Liang, we have inspected it three times today, especially the hot gas de-icing system. Frequent starting of the engine will also affect the service life..." ??The deputy next to him reminded him in a low voice with black lines all over his forehead. ?Before conducting real natural icing tests, according to the certification standards established by Chang Haonan, Lin Guofan and others, the aircraft first needs to verify the function, safety and performance characteristics of each anti-icing system in dry air. But since it has been sunny lately, this process has been done too many times. It doesnt matter, I guarantee it will be foolproof, just check it a few times and there will be nothing wrong. In fact, Liang Shaoxiu himself knew that doing this would not have any practical effect, but if everyone was kept idle, it would lead to anxiety or laziness. It was better to find something to do and exercise instead. "Chang Gong, in fact, based on our previous experience in icing test flights in North America, it is difficult to accurately analyze the characteristics of clouds in the airspace above 1,000 meters by relying on ground weather stations alone. It is best to have a weather detection aircraft to search for Suitable test airspace. An engineer seconded from Institute 602 said next to Chang Haonan. The latter rolled his eyes: The truth is this, but if you want to modify a weather detection aircraft, you need to pass the natural icing test first, and if you want to pass the natural icing test, you need a weather detection aircraft..." ?The engineer scratched his head and said nothing more. Everything is difficult at the beginning Chang Haonan changed his posture, put his hands in his sleeves, looked at the sky at an angle of 45 and sighed. At this time, a piece of English with a strong Italian accent came from the side: My friends, are you really kidding me when you conduct natural freezing experiments in a place that is 1,500 kilometers away from the coastline and has no large water system? The speaker was a tall, thin Italian named Rosi Colombo, the head of the delegation sent by AgustaWestland to follow up on the airworthiness certification. Its not surprising that he thinks so. The natural environment in southern Shaanxi and northwest China is indeed slightly different from the Great Lakes region in North America. ?Seeing that someone was questioning his professional ability, Lin Guofan, who was originally a soft-spoken person, immediately became furious: Of course, according to my research over the past ten years, from November to December every year, the frequency of ice accumulation in the airspace of the Qinling Mountains and northern Xinjiang is above 50%. Mr. Colombo, you have to learn to be patient, be patient! Obviously, everyone was very anxious because they were unable to conduct experiments for many days in a row. Looking at the two people who had become somewhat angry, Chang Haonan quickly reconciled the situation: Professor Lin, dont be anxious. Everything will be clear when we find the freezing weather. Mr. Colombo is not a stubborn person. Look, he has already changed his clothes. This sentence is said in English, so Colombo next to him can also understand it When he first arrived in Nanzheng a few days ago, this guy wore a serious velvet suit and insisted that it was part of his professional image. ?But within two days, he honestly put on a cotton-padded jacket with the aviation industry logo. ??Now I can very skillfully imitate Chang Haonan and others by putting their hands together to keep warm. Colombo looked down at his cotton clothes, pants and shoes, and opened his mouth without saying anything else. As the bickering between several people came to an end, the atmosphere around the runway became dull and boring again. ?At this moment, a rustling sound suddenly came from the walkie-talkie placed on a table next to it, which immediately attracted the attention of almost everyone. The signal transmission stability of this old-fashioned analog walkie-talkie is very poor. After being connected, you have to wait for a while before you can hear clearly what is being said on the other side. The Qinling Weather Station reported that it was found that icing clouds that may meet the conditions are forming at an altitude of 1200-1500m. The airspace range consists of the following five coordinate points: 106.108E, 32.473N, 105.906E, 32.459N ? Lin Guofan grabbed the pen and paper on the table next to him, wrote down the most important data on it, and then quickly gave his judgment: The designated airspace range is about 12,000 square kilometers, but judging from the speed of cloud formation, the time window left for us is not very long, and it may only be enough for one test flight. The best meteorological conditions for natural icing tests are "snowy". Therefore, if the clouds are too thick or the temperature is too low and it starts to snow, there will be no test flight conditions. Everyone looked at each other, and finally turned their attention to Chang Haonan: Comrade Xiao Chang, let me decide whether I want the YUN 8 to go up first or the Xin Ao 60 to go up first? Since the airspace is large enough and the time is short, there is no need to prioritize. I think it is better to have two aircraft test fly together. This way, the possibility of successfully collecting data is greater. The responsible comrade from Institute 603 and Liang Shaoxiu from Factory 182 looked at each other, and then nodded at the same time: Okay, lets take a test flight together! Lin Guofan next to him also raised his head at this time: I have heard from comrades in the United States before that they will have random meteorological engineers there to make specific decisions based on the actual situation after the plane arrives in the predetermined airspace? The engineer from Institute 602 was stunned for a moment, then nodded: Yes, the flexibility and judgment accuracy of the ground monitoring mode are not enough. It would be much more efficient for meteorological engineers to follow the aircraft. At this point, he hesitated again: But to be honest, the FAA made this configuration based on their in-depth understanding of the meteorological conditions in the Great Lakes region and more than ten years of experience. Our natural icing test has just started, and in terms of safety..." ?Lin Guofan waved his hand and directly interrupted the other party''s worries: "Yu Li, the FAA has been tracking the meteorological conditions in the Great Lakes region for more than ten years. I have also been tracking the meteorological conditions in the Qinling Mountains for more than ten years. If Americans can do the same thing, can''t I do it? Because Our natural icing experiments have just begun, and we need to take some risks to speed up the progress of the experiments. "Yu Qing, I have participated in the whole process of the de-icing system design of the Y-8 aircraft. Going to the sky with me can also give more confidence to the crew members participating in the test flight. Comrades Xiao Chang and Xiao Liang are engaged in aircraft design. Zhu Lan They are engaged in surface physics. Instead of letting them increase the risk in vain, it is better to let me go up and be of some use. " I have made up my mind on this matter and there is no need to mention it again. ?At this time, Colombo, who was confused, understood what happened through a translator. After a brief moment of shock and the embarrassment of being slapped in the face, he hurriedly rushed over: I want to get on the plane too! "you?" ?Chang Haonan and Liang Shaoxiu both turned their heads and looked at Colombo. ??Although as a partner, the latter, representing AgustaWestland, can get permission to take off with the aircraft, the natural icing test is after all one of the only three Class I risk subjects. One less person to go to the sky means one less risk. Dont worry, Ive done natural icing tests with the A109 helicopter, Im experienced! Colombo clapped his chest and promised: Furthermore, according to the contract, I must follow all test flight projects in order to receive the full bonus given to me by the headquarters. After confirming the crew members on each plane, the two planes that had already completed their pre-flight preparations took off one after another under the command of the tower. The Qinling area is not far from Nanzheng, so not long after Chang Haonan and others returned to the tower, they received a report that two aircraft had entered the test flight airspace: It was found that there were large-scale stratus clouds in the airspace, and the weather conditions above the stratus clouds were fine, which met the basic conditions for the icing test flight. The tower commander began to issue instructions one by one according to the requirements of the test flight manual in front of him: Check the working condition of the test equipment. ?The pilots clear voice soon came from the radio: Report No. 01, all test equipment is working normally. Report No. 02, all test equipment is working normally. Turn on the atmospheric parameter detector. Checking atmospheric parameters ?This time the interval between receiving responses is a little longer: The cloud top height is 1800, the atmospheric liquid water content is 0.7g/m, and the average diameter of supercooled droplets is 35 microns, which meets the requirements of the continuous maximum icing test. Request to start vertical cloud detection. Request approval. ?Due to the lack of satellite communication means, after the plane enters the water vapor-rich clouds, the quality of the call between the crew and the tower will drop sharply. Chang Haonan and the others can only hear a squeaking noise. Vertical detection of clouds requires the aircraft to enter the cloud from above, descend to the bottom of the cloud, and then climb out of the cloud. It records the changes in liquid water content in the cloud during the change of vertical altitude and determines which altitude is most suitable for conducting the test. The entire process only lasts approximately It takes about 2 minutes, and the anti-icing system will be turned on throughout the entire process, which theoretically will not affect flight safety. ??Still, not being able to stay in real-time contact with the plane is a bit nerve-wracking. Finally, the noise on the radio disappeared. ?Lin Guofans voice reached everyones ears: The cloud base height is 1200, the liquid water content in the atmosphere is 4.5g/m, and the average diameter of supercooled droplets is 105 microns. I plan to conduct natural icing test flights at 1500 and 1200 altitudes, each lasting 15 minutes, corresponding to Category 4 and 3 anti-icing capabilities in the airworthiness certification standards. Obviously, he wanted to take advantage of the rare weather conditions in these months to complete all the test flight projects specified in the manual at once. According to the interim standards formulated by Chang Haonan and Lin Guofan, the anti-icing capabilities of aircraft are divided into 4 categories. Categories 1 and 2 correspond to imperfect ice protection capabilities, and flights are only allowed when the weather is fine and there is no risk of ice accretion or a weak risk of ice accretion. Category 3 corresponds to the icing conditions in most airspace in the northern temperate zone. Aircraft meeting this requirement can basically fly safely under all normal climate conditions. Category 4 anti-icing capabilities are equivalent to additional questions, and only aircraft expected to be used in environments with more severe ice accumulation risks need to be completed. ??The tower commander looked back at Chang Haonan who was standing behind him. The latter hesitated for a few seconds, then nodded. Test flight plan approved! After receiving the news that the plan was approved, the two planes turned around and plunged into the thick clouds. Soon, a dense layer of thin ice formed on the surface of the plane, blocking everyone''s view of the outside. Under normal circumstances, aircraft will deliberately avoid this obviously very dangerous airspace, so whether it is an engineer taking off randomly or a experienced test pilot, this can be said to be a quite special experience. ?Especially the navigator cabin on the nose of the Y-8, the 270 field of view is completely surrounded by ice. The navigator reported that he felt like he was in an Eskimo igloo. ?However, as the ice becomes thicker and thicker, the freshness gradually wears off, and the pilots already feel that the aircraft is becoming more and more difficult to control. In the cabin at the back, Lin Guofan was staring at the screen of his laptop, fearing that he might miss the position of the ice thickness scale. ?According to previous simulations conducted by Chang Haonan, in normal configuration and horizontal flight, the ice thickness on the unprotected leading edge of the aircraft wing should reach 7cm to meet the test standard. The ice accumulation conditions have met the requirements, and the maneuvering flight test has begun! Since it was impossible to communicate with the tower in the clouds, Lin Guofan could only give instructions to the two aircraft together. Wait a minutethis is crazy. Colombos voice came over the radio: I just saw on my computer that the water content in the outside atmosphere has exceeded 4g/m! This... This is four times higher than the data stipulated by the FAA! You are right, Mr. Colombo, but we are not the FAA, we are CCAR. ?Lin Guofan said into the microphone in his hand. But...but why is it so extreme? There is no such extreme situation except for blizzard weather, and it is impossible for the plane to take off in a blizzard day! There was some trembling in Colombo''s voice, as if he regretted following him at this moment. Of course its for safety. Dont worry, we have the best anti-icing system in the world to ensure your safety. "Besides, it''s too late to say anything now. We can''t throw you out of the cabin." After Lin Guofan finished speaking, he did not talk to Colombo again, but directly ordered: Start to hover horizontally and steadily. The pilots of the two planes carefully controlled the rudder surfaces and allowed the planes to start a stable circling of 40 to the right. I...I saw the wing buffet of this aircraft was very large. Is it really...is there no problem? Colombo in the MA60 cabin asked the mechanic next to him with a pale face. The latter looked up calmly and glanced at the screen of the other camera, then looked back at the laptop in front of him: "It doesn''t matter, that''s our active vibration control system at work." Active vibration control? ?Perhaps because of nervousness, or perhaps because of the cold, Colombo seems particularly talkative today: "" "Yes, just like... uh, just like active noise reduction, using controllable flutter to offset uncontrollable flutter. This is also the core technology of our MA60. Haven''t you seen the brochure of our aircraft? , its all written above. Who would go to see that kind of advertising thing? You are probably the first aircraft manufacturer to make the promotional brochure and flight manual the same thing... Colombos teeth are already chattering. "It seems that we still have a lot to learn from you in this regard..." ?At the same time, Lin Guofan on another plane had operated a high-speed camera to capture all the required ice growth images. Compared with the previous computer simulation results, it is almost completely consistent. ? He breathed a sigh of relief. To say that I wasnt nervous about taking off would be a lie. In fact, until he was capturing the ice accumulation just now, Lin Guofan found that his hands were shaking slightly. ?However, the design of the aircraft anti-icing system is based on the simulation of the severity of ice accumulation at different locations. Since the simulation results have no problems, it means that the entire de-icing device should also have no problems. The circling flight and roll subject is over, turn on all de-icing systems! The atmosphere inside the control tower of Nanzheng Airport was a little anxious since it had been unable to contact the crew for nearly half an hour. ?Every second is as long as an hour ?Having confidence in the anti-icing system is one thing, but not being able to hear the pilots voice is always unsettling. Especially Zhu Lan, who was worried about her husband, had been standing in the corner like a sculpture for a long time. Unit 01 report. The sudden clear voice of dialogue made everyone look happy. The maneuvering test flight procedures in the landing configuration, standby configuration and approach configuration have been completed. The anti-icing system is working normally and fully meets the test flight qualification criteria. Our two-aircraft formation is ready to return! Zhu Lan, who was leaning against the wall, suddenly relaxed and fell directly onto the sofa next to him. Liang Shaoxiu, who had been tense for more than half a month, was completely relieved and called the deputy next to him: Notify the manufacturing workshop to replace the other three Y-8Js with new anti-icing systems as quickly as possible. The finalization schedule of the equipment must not be delayed! Chang Haonan, on the other hand, set his sights in the direction of the final assembly workshop. ?There are several other Y-8F platforms parked there waiting for delivery. He stood in front of the floor-to-ceiling windows of the tower and murmured in a voice that only he could hear: In this way, it turns out that the tragedies in history will never happen again..." (End of this chapter) Chapter 162 Medium range air-to-air ammunition Chapter 162 Medium-range air-to-air ammunition The situation is similar to the situation during the ground test of the Turbojet 14. After the Y-8 and MA-60 complete the anti-icing capability test flight, there is still a lot of desk work to be done in order to convert the interim standard into a real national standard. ?However, these matters will naturally be completed by the standard approval personnel of the Science and Technology Commission. For Chang Haonan, his mission at Factory 182 is over. ? So the day after the natural icing test ended successfully, he got on the plane to Dingxin with 70 scientific research points awarded by the system, 500 theoretical experience points and a cash reward of 20,000 yuan provided by Factory 182 - Although I have decided to participate in the two projects at the 611 Institute, everything must have a beginning and an end. The No. 05 prototype of Project 83 has already rolled off the production line and begun flight testing. Seeing that it has reached the most critical stage of finalizing the design of the J-8C, he cannot leave at this time, both publicly and privately. As for why it was Dingxin instead of returning directly to Shengjing, it is because the last test flight subject of the J-8C before the design was finalized was weapon system verification. The National Weapons Appraisal Range responsible for missile testing is located in Dingxin, which later became known as Chinas Area 51. ?When Chang Haonan''s plane landed at Suzhou Airport and taxied to the parking lot, he was startled by the huge crowd outside the port window to pick him up. ?In addition to old acquaintances in Shengjing such as Yang Fenghao, Yan Zhongcheng, and Zhong Shihong, there seemed to be many people whom he had never met before. ?Judging from their clothing, they dont even look like members of the aviation industry system. Comrade Xiao Chang, welcome back! ?Yang Fenghao stepped forward, held Chang Haonan''s hand tightly, and then looked up and down: If the comrades from the Aerospace Industry Corporation hadnt sent a special letter to express their gratitude this time, we wouldnt have known that you had such in-depth research in the field of control science and kept it hidden. The latter was stunned when he heard this, and then realized that the unfamiliar faces next to him should be comrades from the aerospace system. Those who work on missiles. When he co-authored the paper on differential evolution and volumetric Kalman filtering algorithms with Xu Yang, Chang Haonan had considered that the content in it would promote the development of guided weapons in our country. After all, it is normal for various factories within the aviation system to second each other to help solve problems, but it is really not feasible to jump directly to the aerospace system while being named on the 83rd Project. On the one hand, the fragmentation between various systems in this era is quite serious, on the other hand... Even on the other side of the ocean, it is unlikely that a person would be allowed to hold core technical positions at both Lockheed Martin and Boeing. So this is the best solution he can think of as he is currently very busy. ?However, the efficiency of the Aerospace Industry Corporation did far exceed Chang Haonan''s expectations. After all, it had only been two and a half months since he last wrote a reply to Xu Yang. In the meantime, excluding the time spent by the latter on submission and review by the magazine editor, even if you count from the time the paper was accepted rather than published, it would still be at most nothing by now. It took more than a month. ?This Pili 11 was created? ?However, Chang Haonan''s doubts did not last long. Through the words of the people around him, he quickly learned the whole story. Just a week ago, the Second Bureau of Shanghai Machinery and Electronics contacted the 601 Institute and stated that they had solved the inaccurate line-of-sight angular velocity signal extraction that had troubled the Perak 11 for many years, and when the missile-machine distance was far away, the straight-wave spurious signal seriously affected the return response. The problem of wave detection sensitivity. To put it simply, one of the two problems that existed in the past will lead to inaccurate shooting - excessive guidance error, and the other will lead to the missile not being able to hit far - the semi-active radar guidance cannot be fired and ignored, so the missile loses contact with the carrier aircraft. Will directly enter the self-destruct program. The Italians are quite particular about doing business. Although China ultimately purchased only two batches of less than 80 Aspaid air-to-air missiles, Alenia''s technical staff still transferred the missile bodies, propellants and warheads. A lot of relevant technical information. In fact, there is information on the control system and seeker, but after all, we want to imitate the Thunderbolt 11 instead of replicating the Italian Aspaed. The adapted radar fire control is our own, so it is naturally impossible to copy this thing. This becomes the only part that requires technical research. In the past few years, the Second Bureau of Mechanical and Electronics and the 607 Institute have also solved a series of basic problems such as excessive noise of the continuous wave illuminator (CWI), too long time for the seeker to obtain target information, and poor cross-linking stability of missile-machine data. . In short, only the two hard bones mentioned above are left. So the paper published by Chang Haonan and Xu Yang was a timely help to the comrades of the Second Bureau of Mechanical and Electrical Engineering, and it directly brought the Aspad imitation project that had been delayed for 8 years to the light of day. ?Its no wonder that sending a letter of thanks wasnt enough. They also sent a team of nearly a hundred people to Yan Liang to directly participate in the target shooting experiment. After chatting with everyone, Chang Haonan finally saw the Thunderbolt 11 undergoing missile-aircraft matching tests next to the hangar of the flight test institute. ? ? arranged in a row, 10 pieces in total. In the past, this was a number that could not even be dreamed of. There are currently less than 60 rounds of Aspad that can be used by the J-8. At present, it can only be adapted to the R27E of the Su-27SK, so more than a hundred have arrived, adding up to a maximum of just over 200. 10 rounds are used in one target test? Its funny, if you dare to make such a request, the chief of the Air Force will dare to jump off the building to show you. So in the three medium-range missile target shooting tests we conducted before, a total of 11 missiles were fired. Four of them missed the target. Its good to have free mid-range bullets. ?Chang Haonan stepped forward, bent down and gently touched the electrical interface of one of the missiles. Although as early as three years ago, the People''s Air Force had used the imported Su-27 and R27 to achieve the first beyond-visual-range target shooting at a distance of 40-50km, it was the first time that China''s own aircraft were used to launch China''s own medium-range missiles. . also definitely has milestone level significance. ?Standing next to Chang Haonan, Guo Liqiang, deputy chief designer of the PL-11 missile, happened to hear the former talking to himself just now. Of course no one in 1996 had heard of "xx freedom", a very common meme in later generations. This made Guo Liqiang''s eyes light up: Comrade Chang Haonans idea is very good. Medium-range bullets are free. Well, this idea is good! "In the past, although we could manufacture our own aircraft, we had to buy missiles from the Italians. Later, when they stopped selling them, they destroyed one and lost the other. Foreigners laughed at us for being ''organic and without bombs'', and it was hard for us to refute. " But now, the situation is different. Our own air-to-air missiles can fire another round after firing. The Air Force can fire as many as it wants! ??Yang Fenghata, who had already walked to the other side to confirm the test results, just returned to the crowd at this time. After thinking for a moment, he called an assistant next to him: Let the publicity department pay attention and consider quoting this statement in press releases or even titles. ?Chang Haonan, who was just expressing his feelings at first, was a little embarrassed to be coaxed so suddenly. ?But he soon felt relieved. In these days when news report titles are basically limited to declarative sentences, and even the shock word has not been invented yet, just scraping out some scraps from the era of self-media will probably shock people no less than the one after the transformation. Turbojet 14 (End of this chapter) Chapter 163 Let’s try the J-8C Chapter 163 Lets try the J-8C In the hangar, an aircraft with a radome painted green has completed electrical testing and begun to hang bombs. The J-8D was officially put into service at the beginning of this year. Compared with the old model, the biggest improvement is the increased ability to receive fuel in the air. There have not been many updates in other aspects, especially the electronic equipment. The new continuous wave irradiator was replaced just to adapt to the domestic Pili 11 missile. ??The pilot responsible for this target practice is called Feng Lin. He has participated in almost all test missions since the introduction of the A-bomb. At this time, he was reporting on the pre-flight preparations to Yang Fenghata and Guo Liqiang. I still want to thank you comrades in the aerospace system for finally satisfying Lao Fengs wishes over the years. ??A captain officer at the trial training base next to him said with emotion. "ah?" ?Chang Haonan looked at the other party in confusion. ?There is a hint in and out of these words that others are going to die. Lao Feng will reach the age of grounding in two months. He has told us several years ago that he hopes to personally shoot our countrys own radar bombs before the grounding. ??The young captain said as he took out a cigarette, put it under his nose and smelled: As a result, this Perak 11-year-old just heard that there is such a thing, but there is no sign of it. We all thought that he could not catch up. But...hey, you came at the right time. Before Chang Haonan could say anything more to this guy who was obviously from Jinmen, the sound of the target shooting experiment getting ready to begin came from the loudspeaker. Plane No. 19 is preparing to start taxiing. Please ask irrelevant personnel to evacuate the runway area. ?Flight safety is no small matter. Regardless of the designers of aircraft or missiles, they are all irrelevant personnel at the airport. So he followed the others and retreated to the command center of the tower. For Chang Haonan, this was not the first time he watched a fighter jet take off from this position with the best view. The novelty at the beginning had long since disappeared, so his attention was quickly drawn to a piece of equipment that was considered huge in this era. CRT display attracted. The above display should be the situation detected by ground radar. Unit No. 19 has entered the test airspace and the radar is activated normally! ??On the radio, Feng Lin''s voice was unusually calm. ?The tower commander is also reporting the situation to the test pilots in real time. The drone has taken off and is expected to enter the target area in two minutes Estimated to enter the target area in one minute The drone has entered the target area and can start searching for the target! ?This time, the radio was silent for a moment before Feng Lin''s answer came: The radar failed to intercept the target, please reconfirm the target location. One sentence made everyone in the tower feel excited. ?Perak 11 is a semi-active radar guidance. If the radar cannot even intercept the target, there will be no need to conduct any weapons tests. The target is located directly in front of you at the 12 oclock position, 17km away. There was also some tension in the commander''s voice. ?Chang Haonan frowned slightly. He probably already remembered what the problem was. Logically speaking, this is a target shooting test of a new missile. According to the conventional process, a mature model should be used as the carrier aircraft. Wait until the missile is finalized, and then use new aircraft to attack it. But the situation of J-8B/D is quite special. ?Their seemingly huge nose is still stuffed with the ancient 208A fire control radar, and its detection capability is not much farther than the visual distance of the pilot on a clear day. Thats not all. Although the power of this radar is very low and the detection range is long, its power consumption is very high. The generator power of the old model turbojet 13 is only a pitiful 6kw, which is not even enough to provide power at the same time. The radar and the improved continuous wave illuminator provide enough power... In short, based on past or future experience, the ultimate working distance of this combination after it goes to space is just over 10 kilometers. Although it has barely reached the threshold of "beyond visual range", its practical significance is not very great. The ultimate range of Thunderbolt 8 is 15 kilometers... ? In short, the Thunderbolt 11s effective range of about 40 kilometers is completely wasted, and it is difficult to pass even from an exam perspective. Since it takes several seconds from the radar interception of the target to the launch of the missile, if the interception distance is only a little more than 10 kilometers, there is a high probability that by the time the missile is launched, it will not meet the minimum shooting distance requirements in the assessment project... ?At this time, Feng Lins report also verified Chang Haonans guess: 12km, radar captures target! Obviously, it is not that the radar is faulty, but its performance is simply too poor. A few seconds later, Feng Lins voice sounded again: Missiles ready! But at this time, the target distance displayed on the big screen was only 9km. ??The tower commander had no choice but to order: The launch distance does not meet the test requirements, the launch procedure is aborted! Missile target testing is not a one-time deal. As long as both the missile carrier aircraft and the target drone have sufficient fuel, the test can be repeated multiple times. However, until the target aircraft ran out of fuel and crashed, Feng Lin''s No. 19 aircraft failed to lock on the target 15km away three times in a row. Ten minutes later. ??The No. 19 aircraft carrying two PL-11 missiles landed on the runway of Dingxin Airport and was towed back to the hangar by a tractor. Staff from Institute 601 and the Second Bureau of Electrical and Mechanical Engineering came here again, but the atmosphere at the scene became much more depressing than about an hour ago. ??When Feng Lin climbed out of the cabin, even Chang Haonan standing far away could feel the regret in the old pilot''s mood. Under normal circumstances, it takes several months from the time a target test fails to the time the problem is identified, solved, and then the next target test is conducted. At that time, Feng Lin, who had reached his age, obviously no longer had the opportunity to participate in the experiment. Mr. Yang. Chang Haonan squeezed through the crowd and came to Yang Fenghao, who was about to communicate with the pilot: The failure of this target test is obviously a problem with the aircraft. The output power of the continuous wave irradiator is not enough, which makes it impossible to intercept the target at a far enough distance. In this case, why not just let our J-8C prototype shoot this bomb? Feng Lin, who looked gloomy, naturally brightened up. If he just changed the plane and re-tested, it should not take a few days before he would have a chance to realize his wish. ?Yang Fenghata just lowered his head and thought silently. The people on both sides of the Mechanical and Electrical No. 2 and No. 607 Institutes looked nervous. After all, the problem was on their side. But if the new machine is equipped with new ammunition... The leader of the trial training base next to him was a little hesitant. The last time they equipped the new aircraft with new ammunition, they used the J-8B to test-fire the Aspider. As a result, all three shots missed the target, which has left a psychological shadow... Chang Haonan also knew that his proposal seemed a bit out of tune, so he found a small blackboard from the side and repeated the analysis he just made while writing. Finally, he specially concluded: "The J-8C is not only equipped with the 1471G radar with better performance, but more importantly, the turbojet 14 after our improvement can drive a generator with a power of up to 18kw, and the two generators have a total power supply capacity of 36kw, which is the current power supply capability of the J-8C. Three times the size of 8D! Sufficient power supply is also the main reason why I think the J-8C is fully capable of serving as a target test carrier! These two sentences became the last two straws that affected the decision-making. ?Yang Fenghao thought for a moment and nodded slowly: Even if the worst happens, its just another remaining bullet. Theres nothing to worry about! Remaining bomb section is an optimistic statement made by the trial training base regarding the result of the aircraft landing with bombs due to failure to complete the test. Lets try the J-8C. (End of this chapter) Chapter 164 Thunderbolts shook the sky! Chapter 164 Thunderbolt shook the sky! As preparations for the new test began, the trial training base became busy again. The missile-machine adaptation work that was done on the No. 19 aircraft had to be done again on the No. 05 prototype parked in the hangar next to it. In particular, the 1471G pulse Doppler radar on the J-8C is basically a product of two eras from the monopulse radar on the older model. Not only is the main beam completely different, but the arrangement of the continuous wave illuminator is also very different, so the radar needs to be analyzed separately. Perform compatibility debugging with CWI-F. This is also a new challenge for the ground staff at the trial training base. Until three o''clock in the afternoon of the next day, with the cooperation of multiple units such as the 601st Institute and the 14th Institute, the No. 05 prototype of the J-8C finally completed all preparations for the target test overnight and mounted two test missiles. Use bombs to prepare for takeoff. The test pilot is naturally Feng Lin. Since this is the first round of target testing, for the sake of safety, the scheduled launch distance this time is still 10-15km, and the targets are still two conventional HB170B subsonic unmanned target drones. ?This model can carry corner reflectors, has sufficient RCS area, is easy to be intercepted by radar, and its flight altitude and flight speed are within the most comfortable killing range of most anti-air weapons. It is a basic subject in training and testing. ?Although in Chang Haonan''s view, it is a bit overkill to let the combination of J-8C and Thunderbolt 11 fight this kind of thing, but everything must be done step by step, and you can''t just shoot the supersonic physical target drone right away. Although several prototypes of Project 83 have undergone multiple rounds of test flights and even made a splash at the Xiangzhou Air Show, the trial training base has only tested the No. 03 prototype without major modifications before. After all, things seen on TV are not as intuitive as in person. ??So today Feng Lin''s crisp take-off action with bombs still aroused waves of admiration in the tower command center. ?Of course, for everyone in Institute 601, especially Chang Haonan, this kind of situation has been seen too many times. ??Everyone didn''t even have any mood swings, they just stared at the CRT monitor showing the empty situation information. Unit No. 05 has entered the test airspace and the radar is activated normally! ?All preparation procedures seem to be exactly the same as last time. ??However, experienced commanders are still keenly aware of some subtle differences. ?For example, the pilot reported that the radar had been activated about two minutes earlier than before, so that the target aircraft had just completed preparations for takeoff at this time. So, we had to wait for a while before reporting the target situation to the pilot: The drone has taken off and is expected to enter the target area in two minutes! "receive!" Everything seems to be back on track. ?However, a minute later, when the commander made the second report on the radio, the situation changed somewhat. The drone is expected to arrive in one minute Unit No. 05 reports, 35km, radar intercept target! ?The commander who was interrupted mid-sentence held the intercom in his hand and was stunned for about a second. He has been working as a tower commander at the trial training base for nearly 10 years and has never encountered such a situation. The distance of 35km did not surprise him. After all, when the Su-27 was shooting targets before, he found that the target was even much further away. ??The key is the angle. Generally speaking, the search range of a fighter jet radar is a sector with the aircraft nose as the center. For mechanical scanning radar, the search capabilities of different areas within the sector range will not differ much. But target tracking, or target interception, is different. ?This process requires that the center of the radar beam always illuminates the target, and the illumination angle of the beam changes as the target moves to obtain the angle information of the target relative to the radar antenna. When the target is on the line of sight, which is the axis of the fuselage for most fighter jets, the angular tracking error is 0. The greater the deviation from the axis, the lower the tracking accuracy and the greater the difficulty of interception. ?When Feng Lin reported intercepting the target this time, the target drone was still at about 40 from the No. 05 prototype, and its altitude was more than a thousand meters lower. It can even be regarded as a target shooting test while looking down. ?When radar detects mid- and low-altitude targets that are lower than itself, it will be interfered by ground clutter, and it will be more difficult to intercept the target. Therefore, downward shooting is generally completed as an advanced subject. ??Just by chance, the combination of J-8C + Thunderbolt 11 made it more difficult for them to fly into the sky for the first time. To say that the Air Force of this era does not have much experience, the trial training base has only tested two aircraft with beyond visual range combat capabilities, the J-8B/D and the Su-27. Not to mention the performance of the former''s 208A radar, it has proven through yesterday''s 12km target capture that it is completely unable to adapt to the actual combat needs of the 1990s. ??The latters N001 radar detection range is indeed far enough, but other than that, it has no particularly outstanding advantages... So except for Chang Haonan, no one could have expected that the target acquisition process of this target test would be so smooth. In fact, this is one of the many benefits of installing a new engine. In addition to more abundant power, better engines can also drive high-power generators to provide more abundant energy for airborne equipment. Increasing power cannot solve all problems, but if you want to solve any problem, you must have enough power as a guarantee. ?This thing is the same as the power supply when assembling a computer host. I can do without it, but you cant live without it. ?The power supply is large enough, and the freedom of DIY is large enough, so that we can afford high-performance processors and graphics cards... In short, Huaxia Aerospace engineers in 1996 had not yet experienced the pleasure of abundant power supply, and they were still fussy about subsystem energy consumption design. In addition, the sudden explosion of the turbojet 14 was not originally included in the August 3rd Project Plan. ??The result is that more than half of the total 36kw power generation power on the current full version of the J-8C is actually not used. Even so, it is enough to give everyone in the trial base a long experience. The shock left to everyone did not end. Before the tower commander could make any response, Feng Lins voice came over the radio again: Missiles ready! From the radar intercepting the target to the continuous wave illuminator starting to work, to missile preparation, the entire process took less than half the time before. Obviously, everything has improved a lot compared to the last trial. ?? Guo Liqiang, the leader of the Second Bureau of Electrical and Mechanical Engineering, stood behind the commander, not even daring to take a breath. His hands clenched into fists were hidden in his sleeves, but both sleeves were trembling slightly. Unit No. 05, the target has not yet entered the missile envelope, waiting for the launch order! ?The commander who finally reacted issued the first such instruction in his life Although the on-paper range of the Thunderbolt 11, or Aspad, is almost 40km, this number is the theoretical data that can be achieved when the carrier aircraft and the target fly relative to each other at 1.2 times the speed of sound at an altitude of 10,000 meters. At present, the altitude of No. 05 aircraft and the target drone are below 5,000, and the speed is maintained at subsonic speed. 35km is obviously beyond the reach of this kind of missile. In fact, as a model whose main research and development work was completed in the late 1970s, Aspad has indeed fallen behind in these hard indicators. ??Its just that the performance of the radar provided by China was too poor, so it didnt even bother to pay attention to the effective range of the missile itself. About half a minute later, Feng Lin finally received permission to shoot. ?A missile was ignited from under the wing of No. 05 aircraft, then quickly flew away from the pylon, and flew towards the distant target under the guidance of the signal provided by the continuous wave illuminator. ?The target test area is not far from the airport, so ground radar can track the entire process. ?Under the gaze of hundreds of pairs of eyes in the tower, the signals representing missiles and the signals representing target drones got closer and closer, eventually overlapping together and scattered into several randomly scattered targets. hit. (End of this chapter) Chapter 165 The future development of Thunderbolt 11 Chapter 165 The future development of Thunderbolt 11 The target test naturally cannot end with just one shot. So a second target drone took off immediately afterwards. ?Even at the request of Yang Fenghao and Guo Liqiang, the trial training base further lowered the target''s flight altitude. But it was still accurately hit with almost the same process. The target drone confirmed the shootdown! ??As the commander''s voice sounded, thunderous applause erupted in the tower command center. Medium-range interception capability up to 25 kilometers. If we talk about the range alone, it is only at the level of the United States and the Soviet Union in the 1960s and 1970s. But it means that Chinas aviation industry has truly broken through the threshold of beyond visual range air combat. Although more advanced active radar-guided air-to-air missiles that can fire and forget to a certain extent have emerged, the AIM120 and R77 were in service in 1991 and 1994 respectively. It is only a few years ago that fighter aircraft from various countries have The main weapon is still the same semi-active radar guidance model as the Thunderbolt 11. Whats more, these 25 kilometers were shot while looking down. So overall it is not considered backward. Thank you so much. Finally relaxed, Guo Liqiang turned around and shook hands with the test participants from Institute 601 one by one. He stayed in Chang Haonan for a particularly long time. The trial training base is a place that is not often exposed to media cameras, so many of the innermost thoughts can be said without any scruples. Comrade Xiao Chang, although you have not directly participated in the research and development of Thunderbolt 11, you can definitely be regarded as our great hero and savior! Halfway through speaking, Guo Liqiang''s tone even choked with sobs. ?This is definitely not a fake mood swing. Like almost all units in the military industry, the Second Bureau of Mechanical and Electrical Engineering has not been having an easy time in recent years. The only way they can change their fate is to develop the Thunderbolt 11 and then export it with Chinese fighter jets. ?In the arms trade, ammunition is certainly not as conspicuous as equipment, but in terms of profit margin and transaction volume, the former is often the largest. After all, the contract price of an aircraft includes maintenance for the next few years or even more than ten years. If the customer is not willing to upgrade the model, it is often a one-time deal. But the ammunition is different. ?That is a consumable item. Even if there is no war, maintaining basic training consumes a lot every year. For most countries that do not have decent military industrial capabilities, if they want to replenish their supplies, they can only buy from the original sellers. ? So PILI 11 can become a cash cow for the Second Bureau of Electromechanical and Electrical Engineering. ?Of course, the premise is that there must be relatively advanced fighter jets that can be sold. Otherwise, if someone buys a bunch of Q-5s or J-6s, they wont consider mid-range ammunition at all. Correspondingly, the aviation industry system will also benefit from the finalization of Thunderbolt 11. After all, it is already the mid-to-late 1990s, and fighter jets without beyond-visual-range air combat capabilities can no longer find much market. All in all, everyone is happy. That evening, everyone who participated in the test held a small celebration banquet in the guest house of Dingxin Base. After drinking for three rounds, Chang Haonan himself felt fine, but looking at Guo Liqiang next to him, he seemed to be a little unable to stand. ?If the drinker is in the mood, it will definitely be useless if you just tell him not to continue drinking. So while the latter was still awake, Chang Haonan pulled him directly to the door of the guest house and chatted about missile-related topics. Mr. Guo, there must be no problem with this target test of Pili 11. I wonder which direction you are going to go next? After hearing what was serious, Guo Liqiang put down his glass of wine and seemed to have sobered up more than half: Well...semi-active radar guidance should have reached its end, so my initial idea is to replace the seeker and further develop two models, B and C. Type B is infrared guidance and type C is active radar guidance. In addition, the current range of 40 kilometers is too short. If new propellants can be replaced, it should not be a problem to extend it by another 50% on this basis. "Um" Chang Haonan thought for a moment after hearing this. In fact, Guo Liqiangs judgment on the general direction has no problem. Increase the range and upgrade the guidance method. This is exactly what Ermao has done to improve the R27 series missiles after the alliance disintegrated. The final products of the latter, the R27AE and R27EM, have actually undergone earth-shaking changes compared with the earlier models. But God is not as good as man. Just as the R27 cannot compete with the R77, which has a higher starting point, no matter how much it is modified, on the Chinese side, the 612 Institute of Air-to-Air Missile Research Institute in Luoyang has already begun to carry out research on active radar guidance. Technical preliminary research. According to the historical process, Dong Bingyin, the chief designer there, should be collecting R77 technical information from the Signal Flag Design Bureau at this time, and after eliminating the unnecessary and unnecessary, applied it to the model he was responsible for, and finally came up with a better version around 2006. The PL-12 active radar-guided air-to-air missile. Now that Chang Haonan exists, this process will only become faster. The foundation of the PL-11 is essentially equivalent to that of the AIM7. If you want to compete head-on with the PL-12, there is basically no hope, even if the active radar seeker is replaced. The only way out is to change the track. ?Thinking of this, Chang Haonan organized his language a little: I wonder if you have ever considered expanding the application scenarios of Thunderbolt 11? How to say? ?Although Guo Liqiang is considered a person from the aerospace system, Chang Haonan has indirectly helped a lot, so he is also willing to listen to the latter''s opinions. Its not just air-to-air missiles that are in short supply right now. ?Chang Haonan picked up the cup and took a sip of the white grape juice that Yao Mengna had just secretly replaced. Then he stretched out his other hand and took inventory one by one: "The Air Force''s airport air defense force only has twin 37 anti-aircraft guns and pitifully few red flag 61 anti-aircraft missiles with outdated performance. They can completely develop a missile similar to the red flag 7 but with a lower cost based on the Thunderbolt 11. Short-range air defense missiles are provided to the air defense missile troops of the Air Force. "In addition, the PL-11 is relatively large among air-to-air missiles, which is a disadvantage. But if we change the idea and replace the missile with a passive radar seeker, it can become a missile with a larger range by virtue of its larger warhead. An anti-radiation missile of about 40 kilometers, and it is very fast. Even if it is not as good as the Hamm, it is definitely better than the Moxa. " "besides" At first, Guo Liqiang just regarded it as a casual chat between colleagues. However, as Chang Haonan talked more and more, his expression gradually became serious. In the end, he put down his wine glass, took out a notebook and took notes seriously. . (End of this chapter) Chapter 166 McDonnell Douglas, gone? Chapter 166 McDonnell Douglas, gone? Just when Chang Haonan and Guo Liqiang were chatting animatedly, Yao Mengna suddenly hurried out of the guest house and patted the former on the shoulder. Senior sister? ?Chang Haonan turned around, and what caught his eye was Yao Mengna''s pretty face that looked a little red under the influence of alcohol. ?But the latter is talking about business this time: The teacher just called and said he was looking for you. Looking for me? ?Chang Haonan was stunned for a moment. After sorting out the cause of the accident of the Y-8 prototype, Du Yishan did not stay in Nanzheng for long, but quickly returned to BJ. The subsequent work of determining the airworthiness certification standards was mainly completed by him and Lin Guofan. of. It is normal for the J-8C to complete such a big target test for the first time. It is normal for the old man to call and congratulate him. However, the news of the successful target test should not be spread back to the capital so quickly. Secondly, it is already past ten o''clock in the evening. Indeed, Some are too late. ??The last time Du Yishan called him at night was at the Xiangzhou Air Show, and he called him directly to Nanzheng. ?Thinking of this, Chang Haonan immediately said goodbye to Guo Liqiang, who was more than half sober, and followed Yao Mengna to the mailroom of the guest house. Dingxin is actually a unit affiliated with the military, so all external communications are internal lines, and basically any phone call has a sufficient level of confidentiality. Hello, teacher, I am Chang Haonan. ?Du Yishan on the other side of the phone was straightforward. Xiao Chang, not long ago, we received a piece of news. Boeing and McDonnell Douglas announced their intention to cooperate. Both parties agreed to complete the merger and acquisition in the form of a share exchange. McDonnell Douglas will become a wholly-owned subsidiary of Boeing. For most Chinese people who pay attention to the aviation industry, and even most people, this is an unexpected thing. After all, these two companies hold too important positions in the field. Although McDonnell Douglas''s global market share has declined rapidly since the 1990s, and has now dropped to about 10%, even ranking below Airbus, which came from behind, but it is still an established aviation giant, and the centipede will not die. , at least the foundation of technical strength and influence is still there. More importantly, the F15 and F18 fighter jets developed by McDonnell Douglas are also the absolute main force in the equipment sequence of the U.S. Air Force and Navy, as well as many other important models such as KC10 and MD95. In addition to aircraft manufacturing, McDonnell Douglas actually provides financial services in the aviation field, including aircraft manufacturing financing, equipment leasing, etc. Many aircraft manufacturing companies in countries with certain aviation industries, such as Brazil, Canada, South Korea, etc., require high-level services. Rely on services from McDonnell Douglas to stay afloat. As the acquirer, Boeing now occupies more than 60% of the world''s civilian passenger aircraft market share. After merging with McDonnell Douglas, its position in the military aviation field will be comparable to Lockheed Martin, and it will be promoted to a horizontal player. A super giant enterprise spanning the military and civilian fields. ? No matter from which aspect you look at it, this incident will cause a major earthquake in the industry. Therefore, even though he had already returned from a meeting with the Commission of Science, Technology and Industry for National Defense, it was not difficult to feel Du Yishan''s shock from his tone. After hearing the news, Chang Haonan''s first reaction was to turn his head and look at the calendar hanging on the wall of the mail room. December 15, 1996. Obviously, the storm he has caused is not enough to affect the United States, so this day has not changed. Boeing acquires McDonnell Douglas? ?Chang Haonan tried to put some shock in his tone. ?But this incident was expected for him after all. It would be difficult for someone without professional training to fake that feeling. Moreover, he had drank a lot just now, which also reduced his ability to mobilize emotions. In short, the tone of this sentence is a bit strange. Chang Haonan then added his own judgment: "It seems that the Americans should have determined to integrate the domestic civil aviation industry and prepare to confront Airbus." You dont seem particularly surprised by this? Du Yishan didn''t think too much about it. He simply felt that he, a student, was a little too calm when facing the news. Fortunately, Chang Haonan has already thought of his words in this regard: "Well, last month, McDonnell Douglas lost to Boeing and Lockheed Martin in the Joint Strike Fighter (JSF) project selection, and failed to be shortlisted for the final demonstrator stage. I think this was the last step that broke the camel''s back. It was a straw, but at that time I was not sure who McDonnell Douglas would eventually sell himself to. ?McDonald''s ability to sustain itself was largely due to large orders from the US military. ??However, they are now completely excluded from JSF''s large-scale project, which is conservatively estimated to have a budget of hundreds of billions of dollars. They are not even allowed to drink soup. This is a very heavy blow to the company and investors. ??More importantly, a decision that can be approved by the congressional budget agencies is inherently a gesture. They were ready to give up on McDonnell Douglas. Well, your guess is right. This matter has a great impact. The Committee of Science and Technology, the Ministry of Machinery Industry and the Civil Aviation Administration may not be able to sleep in the next few days. Du Yishan on the other side of the phone rubbed the corners of his sore eyes. The several consecutive meetings in the afternoon were already too much for him as an old man, so he decided to finish talking about the most important things quickly and then go to rest: After you finish your work in Dingxin, you will come back to the capital first. Director Ding from the Science and Technology Commission wants to meet you. See me? This was somewhat beyond Chang Haonan''s expectations. Even though he had already met the more senior leaders when he was in Shengjing, judging from Du Yishan''s words, it seemed that Director Ding Gaoheng wanted to talk to him alone. ?This is a completely different concept from meeting during a meeting or ceremony. Yes, in fact, Director Ding had this idea after you took out the aviation engine total pressure distortion evaluation guide and expressed your intention to establish an independent aviation industry system. Du Yishan did not say clearly that the other party was listening when he made the call, although Chang Haonan had already guessed: Its just that at that time, all parties had not yet reached a unified opinion on this matter, and many people were even making some small moves behind the scenes. We were worried that it would have an impact on you, so we put it on hold for the time being. "Now the general direction above has been basically set. In addition, this time McDonnell Douglas was suddenly acquired by Boeing, which will definitely involve some issues in the production of domestic MD90 passenger aircraft. It is difficult to explain things that are too complicated on the phone, so Director Ding thinks we should talk to you directly." Chang Haonan took a deep breath after hearing this. It would be a lie to say that I am not excited. In the past period of time, he has indirectly changed the historical direction of many things through technological means. ?However, the efficiency is always relatively low, and it is not completely controllable. ?This time the situation is different - ??Although he has no official status at this time, it can only be an informal private meeting. But there is no doubt that six months after his rebirth, he finally got the opportunity to directly influence the direction of decision-making for the first time. Good teacher. Dingxin just completed the first target test of the J-8C against the Thunderbolt 11 today. Two shots hit two, and it was a complete success. I dont need to follow the whole process for the subsequent tests. I will try my best to fly back to the capital tomorrow. (End of this chapter) Chapter 167 I have to gather some wool no matter what. Chapter 167 I have to collect some wool no matter what The afternoon of the next day. Beijing, in the office of the Director of the Commission of Science, Technology and Industry for National Defense. Ding Gaoheng was looking at several meeting minutes on the desk in front of him with a frown. Obviously, he was in a bad mood, and the air pressure in the room dropped a little because of it. ??A secretary-looking person stood cautiously next to him, holding several other documents in his hand, wondering whether he should hand them over. As a cadre with a technical background, Ding Gaoheng has a good temper, and even seems to lack of decisiveness in some matters. It must be an unusual thing to make him so angry today. Just leave the documents with me and go and rest. After hearing this, the secretary finally breathed a sigh of relief, gently put the documents in his hand on the corner of the table, and quickly turned around and left the office. TMDwhat a bunch of useless trash! ?After the secretary closed the door, Ding Gaoheng punched the table in front of him. ??The old comrade leaned back on his chair slumpedly and let out an extremely rare blow. ?Until the cigarette in his hand was almost burnt out, he straightened up again, put out the cigarette **** in the ashtray, then picked up the documents that the secretary had just put on the table and started to read them again. Sigh...they will have to wait and see for themselves day by day. Self-reliance is probably no longer a factor in their minds. Ding Gaoheng shook his head and sighed helplessly. As the director of the Commission of Science, Technology and Industry for National Defense, there are some things that he cannot decide alone. Especially when it comes to the civil aviation industry, the problem of bullish management is quite serious. Although he can rely on his own background and the special status of the Science and Technology Commission to dominate it, no matter how hard it is, a ministerial-level unit cannot truly Make it clear. ??More importantly, Ding Gaoheng, who is a precision instrument professional, knows almost nothing about international trade and business regulations. Based on his own intuition, he believes that as the fastest growing market in the world''s civil aviation industry, China will definitely suffer a big loss if it does nothing about Boeing''s merger with McDonnell Douglas. But if we really want to say that we can do something, there really is no idea. The only thing that makes him feel lucky is that a few months ago, due to the aero-engine stability evaluation standards, the civil aviation industry''s "self-centered" development policy was smoothly determined. Taking advantage of the establishment of an independent standard system, the above-mentioned The focus of the mainline aircraft project in Shanghai has changed from the complete introduction of the American civil aviation industry system to the digestion and absorption of technology, as well as the accumulation of experience in the assembly and manufacturing of large civil aviation aircraft. Because of such changes, the higher authorities stopped a huge investment of nearly 1 billion, which was able to recover some losses. ??Just when he was distressed about this matter, there was a knock on the door of the office. "Come in!" Ding Gaoheng took two deep breaths and prepared to put away the documents on the table. ??It''s just that this movement stopped halfway. The one who pushed the door open was naturally his secretary. But there were two other people standing outside. One of them is Du Yishan. ?Following him was a young man dressed inconspicuously, wearing a work uniform that seemed to be issued by the aviation industry. ??Although I have never met him before, it is not difficult to guess the identity of the other party. "It''s Lao Du." Ding Gaoheng, who recognized the person, finally showed his first smile since this afternoon, and re-spread the half-received documents on the table. Yes, I guess you are getting angry in the office right now. ?Du Yishan took off his cotton coat and hung it on the hanger by the door. At the same time, he also gave up half of his body to Chang Haonan behind him: This is Chang Haonan, my student, the previous guide for the evaluation of the inlet total pressure distortion of aviation turbojet and turbofan engines, as well as the operation and certification standards for aircraft natural ice accretion tests, and..." Okay, okay, how can I not know this? Ding Gaoheng waved his hand, interrupting Du Yishan''s spell-casting chant, and then turned his eyes to Chang Haonan. Comrade Xiao Chang, your name has appeared very frequently in my place during this period. I dont even need Teacher Qi to introduce it, I can recite it by heart! Hello, Director Ding, its an honor to meet you here. The past six months since his rebirth have been more colorful for Chang Haonan than the previous forty years, so he has now experienced many battles and has seen a lot. So much so that in front of the director of the Commission of Science, Technology and Industry for National Defense, he had to deliberately disguise himself to appear a little reserved. Ding Gaoheng motioned for the two of them to sit on the sofa next to him, then asked his secretary to pour two glasses of water, and then got down to business: I wont say too many polite words. I asked Old Duterte to call you here this time because I want to hear what you think about the Boeing and McDonnell Douglas matter. Chang Haonan already knew the theme of this meeting as early as last night. Moreover, Ding Gaoheng''s background also determined that he was not a person who liked to meander, so he almost did not hesitate to say that he had already organized it in his mind. Contents: Overall, this is definitely a bad thing for us. The development level of my countrys aviation industry, especially the civil aviation industry, is still relatively low. Although there is great market potential, in a short period of time, the civil aviation market will definitely be dominated by foreign aircraft models. In this case, the merger of Boeing and McDonnell Douglas will, on the one hand, cause us to lose a major model supplier, and on the other hand, it will make Boeing even more dominant, and may even squeeze out Airbus and completely monopolize the market. possible! In fact, Chang Haonan, who understands the development of later generations, certainly knows that Airbus has developed extremely rapidly after entering the 21st century and will not really be overtaken by Boeing. On the contrary, it has a tendency to overtake Boeing in the field of passenger transportation. But at this time, he naturally had to be as alarmist as possible. Sure enough, after hearing Chang Haonans judgment, Ding Gaoheng nodded slightly: This is exactly what Im worried about. If one day we can only buy passenger planes from one company, Boeing, wouldnt it mean that we have to agree to whatever price they want? But it seems that we cant do anything about this matter. After all, Boeing and McDonnell Douglas are both American companies, and the merger is a family matter..." Hearing these words, Chang Haonan knew that it was time for him to play his role. Ding Gaoheng obviously wanted to do something subjectively. Just go with the flow. ??Although he is not proficient in the business field, he is still clear about the general direction of the Boeing-McDonnell Douglas merger. There is actually a lot of room for maneuver here. So he quickly replied: Director Ding, it is true that they are two American companies, but this cannot be considered an American family matter. ?Sure enough, Ding Gaohengs eyes lit up. ?Chang Haonan continues to strike while the iron is hot: We are not the only ones affected by this incident. The reaction and actions from the Europeans will definitely be greater. This time, we have allies! (End of this chapter) Chapter 168 Some people are just arrogant Chapter 168 Some people are just arrogant In the original timeline, there was an extremely exciting and intensive game between the EU and the United States regarding Boeing''s merger with McDonnell Douglas. Although the European Union at this time was still very immature, with no euro even issued and only 15 member states, the fighting power that broke out under the ideal of European integration was extremely strong. European countries were riding on the wind of victory in the Cold War and were very ambitious, feeling that as long as It is not a problem for Europe to unite and be on an equal footing with the United States on the other side of the ocean. Under the guidance of this kind of thinking, the EU certainly cannot sit back and watch Airbus''s two main rivals merge into one and concentrate their efforts against itself. Therefore, although Boeing and McDonnell Douglas have no subsidiaries in Europe, the European Commission Jurisdiction was exercised on the grounds that the merger and acquisition parties were selling products to airlines in the EU and would have a significant impact on the European Economic Area''s large business jet market. The United States believes that according to the EU-US agreement of that year, the Federal Trade Commission should decide whether the merger is feasible, and the European Commission needs to respect the decision to unconditionally approve the merger. There are no certain rules for the application of laws outside the territory. It is always a matter of public opinion and public opinion. The final result still depends on negotiation, or the outcome of the game. In the Boeing-McDonnell Douglas merger case, faced with the EU''s obstruction, the United States was even prepared to retaliate by restricting flights and detaining airliners. Not to be outdone, the EU also threatened to impose huge fines on Boeing''s business operations within the EU. There is even a complete ban on the registration of Boeing aircraft in EU countries. ??The final result is nothing more than a step back for both parties. The EU approved the merger of the two companies to proceed normally, while Boeing made a series of commitments to prevent restrictions on competition, including huge concessions in the market and technology patents. Do you think Europe will turn against the United States? ?After hearing Chang Haonan''s statement just now, not only Ding Gaoheng, but also Du Yishan, who had been sitting next to him and had been drinking tea, showed a somewhat surprised expression. "Of course it will. The biggest victim in this matter is the EU, and they will definitely not be willing." Will this merger fail due to the EUs opposition? But both Boeing and McDonnell Douglas have already announced it? ? Ding Gaoheng spoke much faster than before, obviously very interested in this issue. "Well...that shouldn''t be the case, but the EU will definitely put forward corresponding conditions to obtain sufficient benefits for itself in this merger, and this should also be the direction we strive for." Chang Haonan did not speak too harshly. After all, according to his professional background, making some directional predictions can be regarded as knowledgeable or exhaustive, but if everything that happens later is explained clearly It''s obvious, but it''s hard to explain. So we still focus on aspects related to the aviation field: Compared to the EU, we still have fewer bargaining chips, but after all, we hold such a huge market in our hands, and there is no reason for Boeing to be manipulated by Party B. "Airbus is now developing rapidly, and the Tupolev Company in Russia is also actively looking for foreign users for new models such as Tu-204 and Tu-334. Of course, we cannot really turn to Europe completely. Or Russia, but its okay to use them to pull some strings with Boeing. What about the specific method of operation? Under what name will we or the EU use to interfere in the domestic commercial activities of the United States? Ding Gaoheng asked very detailed questions, which showed that he really wanted to find an opportunity to harvest some wool for China. ?However, Chang Haonan on the sofa next to him felt more and more strange. At the beginning, he felt that those rather basic questions were testing himself. But after several back-and-forth exchanges, we found that this was not the case. ?The other party seems to be really unclear about many things. Consulting in this era was far less developed than in later generations, and there were huge information barriers between different majors or industries. ?Moreover, the Cold War has only ended a few years ago, and the thinking of most people, especially the older generation, is still stuck in the era of confrontation between East and West. ?Hence, it is normal for Ding Gaoheng, an old engineer who has been engaged in technology for half his life, not to know much about the competitive relationship between Europe and the United States, as well as these business rules. ?However, nearly two days have passed since the official announcement of the merger between Boeing and McDonnell Douglas. Whether it is the Commission of Science, Technology and Industry for National Defense or other relevant departments, there must have been relevant discussions or meetings on this matter. Logically speaking, there should be consultants or experts who specialize in this area to give relevant advice. Even if these people are limited by the factors of the times, they cannot be as accurate in everything as the reborn Chang Haonan, but at least they will not let a person of the level of the director of the Science and Technology Commission not know everything. ?Chang Haonan raised his head slightly and let his eyes naturally scan the surface of Ding Gaoheng''s desk. ?There is a pile of papers spread out there. ?Although I cant see the specific content clearly, I think it must be related to this merger and acquisition incident. Its very strange anyway. ?? But he couldnt ask directly, so he could only use a circumstantial approach: I think the best place to start is definitely with antitrust or anti-unfair competition regulations. As long as Boeing and McDonnell Douglas conduct business in a region, they must abide by local competition laws, otherwise they will face fines or market restrictions. "But for something more specific, I think... there should be more professional people responsible for making suggestions, right?" Sure enough, when Chang Haonan said these last words, Ding Gaoheng''s brows suddenly frowned, revealing a hint of imperceptible sullenness. He did not answer immediately, but looked down at the meeting minutes on the desk in front of him. After a long while, he raised his head again. Lets take a look, the suggestions given by more professional people are all here. As he spoke, he picked up a few documents from the table, sorted them out and handed them to Chang Haonan. There is no title on the cover, only the classification level, but there is no top secret. Except for one secret, everything is secret, indicating that these are only consultations and discussions at the ministry level, and no final decision has been made to be reported to higher levels. ?Of course, even if that kind of thing is formed, Chang Haonan will definitely not be able to see it at the moment. He opened one of them. Du Yishan, who was next to him, also came over. The master and apprentice frowned almost at the same time. Then the second, third... The frown deepened. Looking at the several documents in front of him, Chang Haonan finally understood. Not only did I understand why Ding Gaoheng was already keenly aware of the room for maneuver in the Boeing-McDonnell Douglas merger, but he also acted as if he had no understanding of the matter. I also understand why China in the previous life did not respond to this incident, and even continued to invest in the MD90 manufacturing project after the incident. Some of the conclusions given in these meeting minutes are really outrageous. After some analysis, I believe that given the current balance of power between China and the United States, it is barely appropriate to judge that it is not appropriate to respond to this matter. In fact, if we dont consider that the EU has made such a big move, this response cannot even be said to be wrong. But there are still people who think that the merger of Boeing and McDonnell Douglas is a good thing for China? Some even said that they should support the merger decision of the two companies in exchange for Boeing''s continued support of McDonnell Douglas'' aircraft production line in China. They even believed that if additional investment could be continued, there would be a chance to replace the MD90 production line with the more promising Boeing 737 production line. Chang Haonan almost laughed when he saw it. ??If this kind of person doesn''t have a problem with his brain, then he has a problem with his butt. ?McDonnell Douglas was able to actually hand over part of its aircraft manufacturing technology because it was at a critical moment of life and death and needed the help of the Chinese market. Even so, the most critical aircraft structural design and aero-engine related technologies for large aircraft are still in their own hands. ??After acquiring McDonnell Douglas, Boeing will occupy 70 to 80% of the world''s civil aviation market, and it would be damned if it would talk to you about technology transfer. Do you really think that someone is doing charity? As for the other parts except the conclusion, it is even more unsightly. ?Some people have almost written it on their faces that they received black money from Boeing... ?Chang Haonan took a few deep breaths and restrained his urge to curse. As a junior, he must not behave too inappropriately in Ding Gaoheng''s office. That will not only fail to solve any problem, but will also reduce the persuasiveness of the previous judgment. Director Ding, although these suggestions... all have some truth, the starting point seems to be a bit one-sided. High emotional intelligence: The starting point seems to be one-sided. Low emotional intelligence: There is a high probability that the **** of these guys is not on our side. Its indeed a bit one-sided. Ding Gaoheng can naturally understand the meaning of Chang Haonans words: Thats why Im here to find you today. I hope to hear some voices from other perspectives. ?Chang Haonan also understood. ?The other party wants some more professional opinions that can guarantee their position. But he had no answer ? Even if you dont consider the issue of maintaining the personality, he really cant say anything more. At this time, Du Yishan, who had been silent just now, suddenly spoke: Actually, within our aviation industry system, there are a group of people who often deal with foreign customers. I think we can ask for their opinions. ???Also in the afternoon, Im sorry that Im really not in a good state these past few days. I feel very tired after writing for a while. (End of this chapter) Chapter 169 Give up your illusions and prepare to fight! Chapter 169 Give up your illusions and prepare to fight! Chang Haonan was stunned when he heard this. ?This time it was Ding Gaoheng who reacted first: Where is the aviation technology company? Thats right. As he spoke, Du Yishan put down the document in his hand that made him a little hypertensive after reading it, picked up the tea cup again, took a sip, and then continued: In the past nearly two decades, all our negotiations on arms sales with Western countries, especially European countries, have been conducted through them. Although the nature of the arms purchase trade is quite special and is certainly different from normal foreign trade of civilian goods, after all, they have more dealings with foreigners and are much more professional than those of us who are purely technical. More importantly, its not long before your Science and Technology Committee reports the results of the discussion. I think it may not be easy for you to find other professionals who have no problem with their position. Hearing this last sentence, Ding Gaoheng showed a slightly embarrassed expression. Obviously, as the director of the Science and Technology Commission, he actually needed two "outsiders" to remind Boeing of the impact of the McDonnell Douglas merger, which is definitely not a shameful thing. But then he lowered his head and looked at the meeting minutes on his desk that were either avoiding important points and talking nonsense, or directly supporting others. He really couldn''t say anything to refute. Well...it seems thats the only way it can be. Ding Gaoheng leaned his upper body back on the back of the seat, but his mood now is at least much better than before: There is one more thing, Comrade Xiao Chang. Since you also think that neither we nor Europe can really stop Boeing from acquiring McDonnell Douglas, I would like to hear your opinion on the future of the MD90 aircraft production line in Shanghai. ?Chang Haonan organized the documents in his hands and put them back on Ding Gaoheng''s desk: I dont think you can hang yourself from a tree like MD90. ?After determining the main tone of his answer, Chang Haonan took another look at Ding Gaoheng behind the desk. ?The other party looked like an old god, without showing much emotion. But this is a good thing for Chang Haonan. So he continued: The technical level of McDonnell Douglas is inferior to that of Boeing, and once Boeing completes the acquisition, they will definitely not continue to invest in the development of the MD series passenger aircraft product line. In this way, even if Boeing wants to be a good person, By fully fulfilling the commercial agreement signed by McDonnell Douglas, we will only produce a batch of passenger aircraft that will have no follow-up development and whose commercial prospects have been sentenced to death. "Furthermore, because the raw materials and aero engines of the MD90 aircraft still need to be imported, and maintenance and support must also rely on the United States, so we can''t even use these aircraft for military use. In this way, it can be said that building one will cost us a fortune. shelf." Ding Gaoheng nodded after hearing Chang Haonan''s answer and lit a cigarette at the same time: "But together with Hufei''s production line and final assembly line, we have invested nearly one billion yuan. In any case, the information and experience provided by McDonnell Douglas in the early stage are solid, and it has also made it difficult for us to cultivate We have created a group of engineers and technical workers who have mastered the assembly and manufacturing technology of large aircraft. We must give them something to continue doing. Otherwise, wouldnt all the previous investment have been completely wasted? In fact, Ding Gaohengs concerns are justified. Because this is exactly what happened after Hufei struggled for several years in the previous life. Although it is impossible for Chang Haonan to know what happened in that timeline, he will certainly not allow the tragedy of the Hufei Factory to happen again this time. So he immediately said what he had been thinking about since attending the Xiangzhou Air Show: "We have now begun to build our own aviation industry system, so it is best to produce a passenger aircraft designed according to our country''s standards. This will be more helpful to our own civil aviation industry in the future." ? ? ? "And around the world, there are technological capabilities "Only the United States, the European Union, Brazil and Russia have developed a complete passenger aircraft." The United States and the European Union are in an absolutely dominant position in the current civil aviation market, and it is unlikely that they will agree to produce aircraft according to Chinese standards. As for Brazils aviation manufacturing industry, it is completely dependent on the subsidiary industrial system that exists in the United States and does not Be independent and autonomous. Chang Haonan mentioned Brazil purely unintentionally. After all, Embraer still has a very high status in the field of regional passenger aircraft and business jets. But when Ding Gaoheng heard this, he suddenly sighed: In fact, in the mid-to-late 1980s, when we proposed to cooperate with McDonnell Douglas to develop the civil aviation industry, the target of pursuit was Brazil. So thats it? ?This sentence contains a lot of information, but it also explains a lot of Chang Haonans doubts. The rise of Embraer is actually an example of moving from OEM production to cooperative development, giving up technological independence in exchange for integration into the European and American aviation industry systems, and ultimately becoming bigger and stronger. Considering that this is almost the only successful example of a third world country in the civil aviation industry, this path is indeed extremely confusing. So it is not difficult to understand that we took this as an example to make the decision to cooperate with McDonnell Douglas and integrate into the aviation industry system. The only problem is that todays Embraer has nothing to do with Brazil except its name. Its success has nothing to do with Brazil either. The Brazilian government currently only owns 1.45% of Embraers shares. Even most of the jobs provided by this company are not in China, but in the United States and Europe. Yes, some people thought that it would be good to follow Europe and the United States to drink soup like Brazil. Ding Gaoheng took an unprecedented long puff of smoke and slowly blew the smoke into the air in front of him: But within a few years, Americans showed their true colorslet alone drinking soup, they didnt even want to give us the chance to lick the bottom of the bowl! Its a pity that some people dont know whether they cant see it, or they pretend to be confused because they understand, and they have been dragging their feet on such a fatal matter for nearly ten years. The air in the office was quiet for a moment. Theres nothing we can do about it. Chang Haonan, who came back more than 20 years ago and has experienced the era of all-out trade wars, naturally has deeper feelings in these aspects: With 1.2 billion people, even one more mouthful of soup can kill Americans. "Besides, we can''t feed these billions of mouths just by relying on the soup and bones donated by others. Therefore, it is absolutely impossible for us in China to survive in the world by treating others as dogs. Apart from snatching meat from other people''s mouths, There is no other way out. We must give up our illusions and prepare to fight! (End of this chapter) Chapter 170 The interests behind airliners Chapter 170 The interests behind the passenger plane After all, the discussion about Embraer was just a side issue, so it didnt take long for the topic between the three of them to return to the large aircraft production line at Hufei. No matter what, Hufeis final assembly line and production line must be maintained as much as possible. This is the main tone set by the above. Ding Gaoheng''s words made Du Yishan next to him let out a long sigh of relief. In the latter''s view, if the top management hopes to preserve Hufei''s large aircraft production capacity, then at least there should be nothing to worry about in this regard. The most is to continue production at a loss, or to switch to some less advanced models to practice. Thats all. In the most difficult period of the year, various manufacturing plants in the aviation industry basically survived in this way. But this is not the case for Chang Haonan, who knows the subsequent plot. He knows very well what certain people are capable of doing in both positive and negative ways. The civil aviation market in China is the size of thousands of mainline aircraft. And in order to ensure safety, Chinese airlines, especially passenger routes, will rarely operate old aircraft that are too old. So this is still a market that is forced to refresh every 8-10 years. As for the external procurement of aircraft, whether it is Boeing or Airbus, there is a huge chain of interests hidden behind it. If nothing else, the public relations expenses incurred by these two companies every year amount to ten figures. Once China is able to manufacture its own passenger aircraft, especially mainline passenger aircraft. Even if the design of the passenger aircraft is still foreign, and even if the model is not that advanced, Chinas civil aviation market will definitely use aircraft produced by itself first. Like those MD82s procured in the past few years, and the MD90s originally planned for the future. As a result, the space left for other companies to compete freely will become smaller. At the same time, it also means that the profit space left for those compradors will become smaller. And this is what those people dont want to see. Hence, internal enemies are even more active than external enemies in disrupting the development of the independent aviation industry. They will never give up just because of the tone set above. Sure enough, Ding Gaoheng then said: What the Civil Aviation Administration of China means is that if the MD90 project loses its prospects due to Boeings acquisition of McDonnell Douglas, then we can consider the AE100 passenger aircraft solution that Airbus has been recommending to us in the past two years... Hearing this, Chang Haonan sneered inwardly. The operation is exactly the same as the original timeline. ?This AE100 project has not even been announced at this time. The reason why Airbus came to Shanghai Airbus is because it is not sure whether there is a market prospect for a mainline aircraft the size of a regional aircraft, so it just wants to find a partner to share the risk. Once the project improves, we will definitely find a way to get rid of the latter. ? It is true that China and Europe have common interests in the Boeing-McDonnell Douglas merger. But when it comes to developing an independent aviation industry, its a different story. What happened in the previous life also proved that this idea was not successful. After abandoning Shanghai Airbus, the A318 passenger aircraft that Airbus took out only sold about 80 aircraft and was hastily discontinued. Airlines that bought this model also quickly chose to sell it. Retired. In fact, a 100-seat passenger aircraft is a complete clown for Chinas passenger flow density, and it is impossible to support the demand for major domestic routes. Furthermore, the take-off weight of the AE100 is only 60 tons, which is overkill for Hufeis production line. In short, choosing AE100 to inherit the MD90 project can be said to be the worst solution. It is even worse than biting the bullet and continuing to make MD90 at a loss. Other than deliberately sabotaging China''s aviation industry, I can''t think of any other reason. Ding Gaohengs words just now continue: As Comrade Xiao Chang said just now, we have no initiative in choosing to cooperate with Airbus. The companys current growth momentum is very strong, and there is no need to completely produce an aircraft in our country. But the only forces I can mobilize currently are related to the Science and Technology Commission system. There is no way to compare with civil aviation in terms of resources. Obviously, Ding Gaoheng needs more sufficient reasons to prove to his superiors why the AE100 path is unworkable. And this is actually a super-outline question for him. Because in the field of civil aviation industry, especially in terms of development routes that have nothing to do with specific technologies, there is no such thing as the Commission of Science, Technology and Industry for National Defense. ? It was entirely because of the aviation industry standards controversy that Chang Haonan caused a few months ago that Ding Gaoheng and the Science and Technology Commission had the opportunity to enter the game in an all-round way. He himself is engaged in aerospace and missiles. There is no chance of buying in these two fields. Obviously there is no room for compradors to survive. Naturally, he has never experienced such a scene. ? It is not surprising that a foreign aid with a reliable position and excellent professional knowledge is needed. I''m afraid this is the main purpose of finding Chang Haonan and Du Yishan. The discussion just now on how to deal with the Boeing-McDonnell Douglas merger should only be regarded as an additional question. It''s just that Chang Haonan made a fool of himself with the additional questions. Now, he is about to complete the required questions. I saw this AE100 solution at the Xiangzhou Air Show this year. I also consulted some Airbus technical staff. Chang Haonan must not directly yell at Ding Gaoheng in his office for harming the country. That would be too offensive and might cause unnecessary trouble to the director of the Science and Technology Commission if heard by outsiders passing by. But it was impossible for him to directly predict the fate of AE100 without any basis, so he had to start from the air show he had just participated in: "First of all, Airbus has only produced one model, which has not even entered the overall design stage. Judging from my professional perspective, no matter how efficient the engineers are, it will take 2-3 years to complete the process from design to design. The entire process of mass production, so even in terms of project progress alone, it is impossible to follow the MD90 project that may be terminated at any time. " "Secondly, according to the data given by the other party at the air show, the AE100 only has 100-110 seats, which is about two-thirds of the A320, but its occupation of airport resources is at the same level as the latter. In terms of operating costs There is no advantage. There may be demand for some European routes with less passenger traffic, but it will definitely not become mainstream here. " "Finally, it comes back to the issue just mentioned. It is obviously impossible for Airbus to build a new aircraft in accordance with my country''s aviation industry standards. This means that if Hufei chooses the AE100 project, it will have to accept another Brand-new manufacturing and assembly standards may not be beneficial to the development of our countrys aviation industry in the long run. Ding Gaoheng nodded repeatedly after hearing a few words, obviously quite satisfied with this set of answers. But Chang Haonan knew that this was still not enough. When discussing this kind of practical problem, you cannot just raise the difficulties without giving solutions. So the Science and Technology Commission still needs to come up with a more feasible plan. (End of this chapter) Chapter 171 Tupolev is also an option Chapter 171 Tupolev is also a choice "Based on the current situation, we can consider asking the Aerospace Technology Group to contact Tupolev personnel and discuss the use of the Tu-204 and Tu-334 models by introducing Su-27 technology and production lines. Issues with domestic manufacturing. "Compared to Airbus, Tupolev''s situation is obviously much worse, which also means that it is easier for them to compromise in negotiations. In addition, we already have experience negotiating with Sukhoi, and there should be hope that They improve the aircraft according to our country''s standards, and our technical personnel can also participate in this process, and we can also give this aircraft our own code name like the J-11." Obviously, when Chang Haonan said this, Ding Gaoheng''s eyes suddenly lit up. The MD90 produced in China can only be called MD90, but the Tu 204 produced in China can have its own name. Dont underestimate this difference. For an era when national self-confidence is at its lowest, this is definitely quite attractive. So Chang Haonan continued to strike while the railway was hot: "More importantly, the Russians will not restrict the uses of these aircraft we manufacture. Even if the civil aviation side breaks out and refuses to accept these aircraft, the military can be a strong backing. The Tu-204 is a better special aircraft than the Y-8 Platforms, reconnaissance, anti-submarine, early warning, electronic warfare, and VIP transportation can all be modified on the basis of this model. Obviously, Ding Gaoheng is already moved. ?There is another benefit that Chang Haonan did not mention clearly, but everyone is well aware of it - Only the trade negotiations with Russia can be fully decided by the Aviation Technology Group and can avoid the interference of other forces. Because most of the connections in related industries on the Russian side are in the hands of aviation technology, there is no need to worry about others getting in the way. and more efficient. ? It is already December 16th, and there is only about half a month left before relevant units submit response plans to their superiors regarding the Boeing-McDonnell Douglas merger incident. Therefore, the sooner the better. If we can reach even the most preliminary consensus with Tupolev on key issues such as model improvement and technology transfer during this period, it can greatly improve the effectiveness of the Science and Technology Commission on this matter. Persuasion and voice. ?Thinking of this, Ding Gaoheng could no longer sit still. ?He pressed the long-burned cigarette **** in his hand into the ashtray, then stood up: Lao Du, Comrade Xiao Chang, originally I was going to keep you for dinner in the canteen of the Science and Industry Committee today, but now it seems that the situation is urgent and I have to go and prepare for a meeting right away. It doesnt matter, business is more important. Du Yishan smiled and waved his hand: "But I have to pay for this meal here. After you solve the problem at hand, I will bring Xiao Chang over again. You can''t default on the bill." Not only will we not default on our debts, but if this matter can really be properly resolved in this way, then Comrade Xiao Chang can be said to be a great contributor to our countrys aviation industry! Ding Gaoheng had already put on his coat and was getting ready to go out as he spoke: When the time comes, I will personally ask for credit from him! That statement is final. Its a deal! Chang Haonan was still immersed in great joy until he followed Du Yishan and left the Science and Technology Commission. Compared with the request for credit that Ding Gaoheng said, what excites him more is actually what happened today Finally, I have the opportunity to speak out what is on my mind. Ever since he saw the Tu-204 at the Zhuhai Air Show, things about domestically produced large aircraft have been lingering in his mind. ??If you have unlimited scientific research points and time and energy, the best solution is naturally to put aside all foreigners and build a passenger aircraft series that matches the A320/330/350/380. But as far as the current objective conditions are concerned, this can only be an idea. In fact, even if the full set of technical information of the A350 or A380 is presented, China today does not have the ability to manufacture an aircraft of this size on its own. So we still have to proceed step by step. But overall technological weakness does not mean that some advanced key technologies cannot be developed. ?With the promotion of Chang Haonan, Huaxia is fully able to verify some new key technologies in the localization process of Tu-204, thereby improving its capabilities in the field of large aircraft design and manufacturing Thats right, just like the J-11. This is another reason why he hopes to cooperate with Tupolev. After all, Airbus or Boeing cannot be expected to allow others to tamper with the design of their aircraft. At this time, Du Yishan patted Chang Haonan on the shoulder: Lets go, I didnt take you to have a meal at the Science and Industry Committee this time, Ill treat you to a meal there. ??As he spoke, he pointed to Jinjude, a restaurant across the street. On the other side, after seeing off the master and apprentice, Ding Gaoheng quickly asked his secretary to make several calls in succession. Later that day, the leaders of the Aviation Industry Group and the Aviation Technology Group, as well as several representatives who had been responsible for negotiating important projects in the past, gathered in a conference room of the Committee of Science and Industry. ??This is the same room where the last symposium was held. You must all already know about Boeings acquisition of McDonnell Douglas. ?After making up his mind, Ding Gaoheng also showed his card as the director of the Science and Technology Commission and said straight to the point: "We cannot sit idly by and do nothing about this matter. We must win some benefits for China." After hearing this statement, the faces of several other people present at the meeting became serious, and they appeared to be sitting upright. Comrades from the aviation technology department, I will assign you two tasks now. The first is to use some of the contacts we made during the past arms trade to test the European sides attitude towards this matter, and if possible, follow their methods to formulate a negotiation strategy suitable for us. I understand, Director Ding, I will personally take charge of this matter. A senior negotiator from Aviation Technology Group said while recording: However, our country currently does not have an anti-monopoly law and can only consider applying anti-unfair competition law, so... it may be weaker than the EU during the negotiation process. Ding Gaoheng nodded: The bottom line of our negotiations is to require Boeing to transfer some parts sold to China Airliners to our domestic production. The proportion may not be large, but it must be there. As for better conditions, we will see if we can get them in time. Obviously, it is impossible for a person who can sit in the position of director of the Science and Technology Commission to have no ideas of his own. ??Of course we should find Tupolev for cooperation, but we should also try to recover the losses that can be recovered from Boeing. After confirming that no one had anything else to say, Ding Gaoheng continued: "The second is to contact Russia''s Tupolev Company as quickly as possible and ask them about co-production and improvement of passenger aircraft. But don''t let them see that we are in a hurry. It will be good if we can confirm our intention before the end of the year." " "Comrades from the aviation industry department, I need you to write a report on the development of the civil aviation industry within a week. I don''t care what you write in the middle. The conclusion must be to oppose the AE100 aircraft project that Airbus wants to cooperate with us. " "in addition" As Ding Gaoheng''s instructions were issued one by one, the entire Science and Technology Commission system began to operate accurately and efficiently. (End of this chapter) Chapter 172 Imagination of high-thrust turbofan engine Chapter 172 Imagination of high-thrust turbofan engine ?At the same time, the master and the apprentice had already finished dinner in Jinjude and sat on the special car returning to Beijing Hang University. Xiao Chang, according to the current progress, the J-8C should be able to complete the design and finalization soon. Do you have any ideas about the future research direction? After the car started moving, Du Yishan asked Chang Haonan next to him. ?The drivers who can drive for Du Yishan are also specially arranged, and work matters can naturally be discussed in the car. "I think the experience of participating in the 83rd Project during this period is very good. It can not only ensure a certain degree of freedom in research directions, but also deeply participate in the project development process, so it is best to continue using this model. Go down." ?Chang Haonan almost immediately gave the answer he had thought of for a long time. I guessed you would choose this way. Du Yishan smiled and continued: "During the time after I came back from Nanzheng, the 611 Institute asked me many times, both overtly and covertly, saying that they wanted you to come over and help them match their new models. What do you think? " In addition, this time Chengdu has said that they will apply for horizontal projects for us, and we will have more freedom in the use of funds. This sentence is not very clear, but Chang Haonan can naturally understand it. The so-called horizontal projects are actually research projects signed directly between enterprises and university research groups, without going through ministries, local governments or other national agencies, so management will be much easier. ?For example, according to the regulations of some schools, up to 30%-50% of the horizontal funds can even be directly allocated as "project team commission", and the remaining balance can be used as project research funds. This item is definitely not included in the general vertical project funds. Although there are various ways to create clever names, after all, they are not as comfortable as just money. ? Du Yishans emphasis on horizontal topics is obviously to express the sincerity of the 611 Institute. ?But in fact, these details were already agreed upon by Chang Haonan and Lu Yuying in Xiangzhou, so they did not surprise him. "Of course it''s no problem to do the 611 project. Their J-7F is now considering replacing it with a turbojet 14, and our country''s No. 10 independent third-generation aircraft is also being developed there. Rather, this is my next plan. " In that case, I will give a definite reply to 611 tomorrow. Du Yishan said as he raised his watch and looked at the date: Today is December 16th. If everything goes well, the design finalization appraisal may be scheduled around New Years Day, so you can consider waiting until after the Spring Festival to directly join the work of 611. However, Chang Haonan shook his head: "There is no need to wait until after the Spring Festival. I can start working immediately after I return to Shengjing." In the past, we were limited by objective conditions and could only focus on the flight engine matching. But this time, I am going to change my mind and try to design with the aviation engine as the center. "So even if I am doing a project for 611, I plan to go to Shengjing first to follow up on the aviation development situation. After all, our second-generation power turbojet 14 and third-generation power turbofan 10 are both produced by 606 and 410 factories. In charge. Turbofan 10 ?Du Yishan took off his glasses, took out a piece of chamois leather and gently wiped the lenses, then put them back on: Do you think that with the current progress of Project 10, there is still hope for Turbofan 10 to catch up with its first flight? ?In terms of project establishment time, the Turbofan 10, known as the "Taihang", is actually not much later than the Turbojet 14. However, with China''s current aviation power level, even the development of a turbojet with a thrust-to-weight ratio of 6.5 is stumbling. In the end, it was Chang Haonan who came to the rescue with a plug-in, let alone one that is expected to have a thrust-to-weight ratio of 7.5-8. A high-thrust turbofan.???? So what is the current progress of this project... Basically there is no progress. Chang Haonan was able to modify the Turbojet 14 in a few months. In addition to the system as a backing, the more important reason is that the model itself has a high degree of completion. He only needs to build on the original design. Just modify it. ?Furthermore, the requirements for materials and manufacturing of the turbojet 14 are relatively low. As long as he comes up with a good enough design plan, even if the 410 factory is a little less efficient, he can still build what is on the drawing. But the Turbofan 10 is a completely different story. According to the original timeline, the J-10 would make its first flight in March 1998. It is now December 1996, and the No. 01 prototype equipped with the AL-31FN engine is actually close to rolling off the assembly line. Even if the car is on and off, it is impossible for Chang Haonan to build a brand new third-generation model from scratch in 14 months. Honestly speaking, even if he wanted to actually start the design work on the turbofan 10 within 14 months, it would be quite difficult When the Taihang engine project was established, there was a serious lack of preliminary research. To put it bluntly, it means something big and quick. This has resulted in that although the project has been put on the table, many preliminary preparations have not been completed. So Chang Haonan shook his head very simply: I heard that the progress of the No. 10 project at the 611 Institute is pretty smooth. After all, the Turbofan 10 has to start from scratch. It is probably impossible to catch the first flight. ?However, before Du Yishan could answer the question, the topic changed again: But just like the J-8C, it will first make its first flight in an incomplete state, and then later install new domestic power and adjust the inlet design to catch up with the finalization node. I think this is still promising. "The overall performance of the AL31FN engine is acceptable, but in any case, it is a Russian design after all. It is impossible for the Salyut Design Bureau to adjust according to our needs, or to customize the performance details of the engine. Its always a bit boring when you send a matching job. ?This answer is obviously beyond Du Yishan''s expectations, especially the part about letting the turbofan 10 catch up with the J-10 design finalization node: Tell me about your specific plan? Chang Haonan did not give his answer immediately, but lowered his head and thought for a few minutes: "First of all, high-thrust turbofans are still too far ahead of our current aero-engine research level. I could feel it when I modified the turbojet 14 before. The current design ideas, design tools, material levels, and process levels are all Its not enough, so when I return to Shengjing this time, the focus will definitely be on the turbojet 14. After all, the J-7F is a single-engine aircraft, and its aviation engine requirements are somewhat different from the J-8C, so some parameters need to be fine-tuned. In addition, both the 606th Institute and the 410th Factory can accumulate some experience in the production and improvement process of the turbojet 14. Including myself, we also need to further improve our understanding of aviation power. This can also be regarded as technical preparation for the Taihang project. "So after completing the flight engine matching work for the J-7F, I should first participate in the preparations for the first flight of Project No. 10. Just when I was studying the stability of the flight engine in Fucheng, I used to follow the wing flutter. With the same idea of ??control, we have conceived an active engine surge prediction and suppression system, and we can take this opportunity to actually test the feasibility. " After hearing this answer, Du Yishan secretly breathed a sigh of relief. ?For just a moment, he began to worry that he, a talented student, might be a little drifting because his experience in the 83rd Project was too smooth. But judging from the plans Chang Haonan made for himself, he still maintains a calm and objective assessment of himself and the level of China''s aviation industry as a whole. Its really unfounded worries. Then follow your plan. (End of this chapter) Chapter 173 EDM Chapter 173 Electrical Discharge Machining After both parties confirmed the details of the project and confirmed that they had no objections to the preliminary plan drawn up by Chang Haonan, Chang Haonans 611, who was worried that Ye Changmengduo would be robbed again, submitted the project as quickly as possible. Even though it is the busiest time at the end of the year, this project still got the green light from the Science and Technology Commission, and the entire process was completed in just a few days. ?When Chang Haonan took the plane back to Shengjing, an engineer from the 611 Institute who had participated in the J-7F design work was already following him. There were only some scattered test flight subjects that needed to be completed at the trial training base in the Eighty-three Project. There was no work that Chang Haonan needed to complete, so after landing, he rushed directly to 606, which was responsible for the performance adjustment of the turbojet 14 engine. graduate School. ?Compared with the J-8C equipped with two engines, the J-7F, which is lighter, smaller and has a single engine, requires its own power to have higher reliability and lifespan, but does not require high thrust. For this purpose, the 606 Institute has specially developed a new model, the turbojet 14B. There are not many specific changes. The main changes are to reduce the temperature in front of the turbine, sacrificing about 5% of the thrust, in exchange for a lower failure rate, and to increase the first turnover period from 150 hours to 250 hours. At the same time, the power of the generator supporting the engine was increased from the original 18kw to 20kw. After all, there is only one engine, but it has to drive a KJL7 radar with high power, and some margin must be left to cope with other subsystems. ?Correspondingly, the model originally installed on the J-8C was named Turbojet 14A This job is not difficult. Therefore, although the chief designer Yan Zhongcheng has focused on the design of the aeroderivative gas turbine of the Turbojet 14, others in the Kunlun engine project team still rely on the designs left by Chang Haonan. Experience completes the improvements. Such efficiency was far beyond Chang Haonan''s expectations, and after some inspections, he determined that there was nothing wrong with the design of the turbojet 14B. For China Aviation Industry in the mid-1990s, it was very gratifying to be able to fine-tune engine performance to this extent at once. Factory 410 has started to produce a prototype of this model. If there are no problems in the factory test, it will be sent to Chengdu for installation and matching in about two years. ?This change is very small, especially for sub-models that reduce performance. Generally, there is no need to conduct complete ground and air platform tests as before. However, Chang Haonan was not happy for long. One morning two days later, he had just finished breakfast when he was stopped by Liu Dan, the deputy chief designer in charge of model improvement. Chang Gong, the news from the 410 Factory is that the turbojet 14B prototype broke down during the factory test. After hearing these words, Chang Haonan, who was still a little sleepy, suddenly woke up. He took several deep breaths in succession to calm himself down. Engine problems at this stage are not necessarily a bad thing. Furthermore, the failure was not an accident, which means the situation was not particularly serious. Lets go and have a look at Factory 410. The group soon arrived at the 410 Factory not far away. The person responsible for the reception was Chang Haonans old acquaintance, Zhong Shihong, the Minister of Technology. He led everyone to the testing workshop behind the production workshop. An engine is being installed on the test bench. ?The overall structure here looks a bit similar to the SB101 high-altitude platform of the 624 Institute, but it does not have the ability to simulate high-altitude environments. It is just a place to fix the engine and test whether it can work properly. From the outside, this turbojet 14B has no damage. It also verified Chang Haonans previous guess that the problem should not be serious. The final assembly of this prototype was completed the afternoon before yesterday. Routine factory testing began in the evening, and the problem was quickly discovered. Zhong Shihong walked to the control room next to him and called up the relevant test data: "When the engine is at maximum thrust but the afterburner is not activated, the working condition of the compressor will fluctuate violently without warning. As of this morning, an alarm appeared in the combustion chamber. We shut down the engine to cool down and then checked. , it was found that the first-stage turbine blades had been damaged, but the test time had only passed less than thirty hours. We have conducted many rounds of troubleshooting, but in the end we still couldnt find out the cause, so we can only contact you to see if we can determine what the problem is. After hearing such an introduction, what the 606 Institute is most worried about is not the prototype itself, but the turbojet 14A that has entered small batch production. After all, it is related to the design and finalization of the J-8C. However, it seems that this point has been estimated for a long time. Before anyone else asked, Zhong Shihong said that several turbojet 14A produced at the same time did not have similar problems and the test was completed very smoothly. ?This made Chang Haonan feel relieved, but also quite confused. ?Most of the parts of the turbojet 14B are exactly the same as the turbojet 14A, so a large number of parts from the same batch will be directly used for assembly. ?The result is that there is a problem with the model whose parameter orientation is low performance and high reliability? ?This suddenly reminded Chang Haonan that when doing ground simulation tests for aviation engines in Fucheng, Yao Mengna''s test process of the temperature field distribution in front of the turbine seemed to have similar results. When the throttle valve is near the minimum afterburner and maximum thrust, the temperature field distribution is the most unstable. If you continue to increase the thrust, the situation will gradually get better. ?At that time, everyone could only locate the problem in the process of air film hole processing, and did not find a more specific reason. ?Chang Haonan slowly walked to the test bench and picked up the damaged turbine blade from the table. Because it uses air film holes for active cooling, it is covered with dense circular holes, which is extremely unfriendly to patients with cryptophobia. Minister Zhong, how do you process these film cooling holes when you produce turbine blades? After hearing this question, Zhong Shihongs face showed a hint of pride involuntarily: "The diameter of these small holes is only 0.25 to 0.30mm, which is difficult to process mechanically, so we can only use EDM deep hole processing technology. Our 410 factory specially changed the flow electrode of the 100A EDM machine tool into a hollow rotating copper for this purpose. The electrodes allow the coolant to flow in the copper tubes, and the technical problem of short electrode life is overcome and the turbine blades of the Turbojet 14 are manufactured. " Hmmis this the mainstream processing method in the world now? "That''s not true. Western countries generally use electrohydraulic beam machining. However, our country''s foundation in the field of electrochemistry is too weak, and related equipment is restricted and cannot be purchased. We have no choice but to use EDM drilling. This way. Zhong Shihong said and shook his head: However, the entire other processes of turbine blade manufacturing, including testing standards, are strictly in line with the worlds advanced levels, so you can rest assured in terms of quality. The testing standards are also based on them? Hearing this, Chang Haonan finally came to a realization. Then I probably know where the problem is. (End of this chapter) Chapter 174 Process issues Chapter 174 Process Issues You are saying that there is something wrong with the EDM process? Zhong Shihong next to him showed an expression of disbelief: But the turbine blades of the Turbojet 14 were produced in the same way in the past, and there were no similar failures? It may not be a problem with the processing technology itself. Chang Haonan habitually raised the turbine blade in his hand and pointed it at the light source, but it was obviously impossible to see anything with the naked eye, not to mention that this was a scrapped part: I think it is more likely that there are omissions in the post-processing and detection process. "this" Zhong Shihong still cant accept this explanation: "Turbine blades are the core components of the hot end of aeroengines. For this purpose, we have specially set up a set of inspection procedures to inspect the position, diameter, residual stress and deformation of the openings, as well as the burrs and flash edges of the openings. Only if they all pass before it can be installed on the turbine disk. So, although the yield rate of manufacturing turbine blades is not high, I think the quality of the product can be guaranteed. Looking at Zhong Shihong beside him who was explaining the quality inspection process quickly, Chang Haonan hesitated for a moment and did not directly express what he had just thought. I need a metallographic microscope with a probe. It is meaningless to argue here. The correct way is to find a sample and test it again. We do have a metallographic microscope here, but this scanning probe An engineer in charge of testing next to him shook his head: Multifunctional probes cannot be produced domestically for the time being. If they are imported, high-end optoelectronic instruments and equipment cannot be purchased by our military industrial units. Hearing this answer, Chang Haonan shook his head helplessly. ? ? China''s technological backwardness in this era is all-round, and many things are due to inability. It is difficult for him alone to solve such systemic problems in a short period of time, and he can only think of other ways. What about other units? Do you know which universities or scientific research institutions have this type of equipment? In the era before Chang Haonan was reborn, a scientific research place only had a few similar electron microscopes, so he rarely paid attention to this kind of issue. Perhaps you can ask Lianhai University of Science and Technology or Lianhai Medical University? Ill get in touch. The inspection engineer just turned around quickly and left. ??Although Zhong Shihong had different views from Chang Haonan, he did not stop him. The ultimate goal of everyone is the same, which is to solve the technical risks that caused the turbojet 14B to malfunction. No matter whose opinion is correct, everything will be known once the test results come out. The two universities that needed to communicate were not affiliated with the Commission of Science and Industry, and after all, there were still confidentiality issues with the turbine blades of the Turbojet 14, so the communication between the systems took a lot of effort. Until dinner that day, the 410 Factory Biancai received a clear answer. Lianhai Polytechnic has a metallographic inspection microscope that meets the requirements, but according to the agreement reached with the foreign company when purchasing it, this equipment and all related accessories cannot be moved, so the samples need to be brought there for testing. In the 1990s, there were not many people flying. Even for official or business trips, most people only chose to fly when traveling far away. Therefore, even though Shengjing and Lianhai are both large-scale cities, they still do not fly every day. flight. Therefore, it was not until a few days later that Chang Haonan and Zhong Shihong boarded a plane to Lianhai with several engineers and two finished turbine blades randomly selected from the production line. A Cessna 208, nicknamed "Caravan". Small aircraft that are not even considered regional aircraft are actually generally used in general aviation abroad. In fact, Chang Haonan didnt even recognize the plane at first, but simply thought it looked familiar. It was not until he boarded the plane that he glanced at the escape manual placed behind the front seat before taking off and determined the specific model. I also remembered the familiar source When I was reborn more than half a year ago, in Liu Hongbos aircraft design class, the seaplane design presented by Huang Zhiqiangs group was based on this aircraft. It''s just that the one he''s riding now is an extended one that can accommodate 14 passengers. I didnt know before that Northern Airlines had so many small Cessna aircraft. As the plane took off and climbed, Chang Haonan looked down from the porthole window and found many of the same models parked on the apron next to them, all with the same paint job. Many airlines have been doing this over the years. Zhong Shihong, who was sitting next to him, wrapped himself in the blanket he asked from the flight attendant before getting on the plane and replied: There are also slightly larger feeder models that are also very popular, such as the MA-60 that you have participated in before, Bombardiers CRJ200, and Embraers EMB145 that has just been put into operation. There are a lot of them. Chang Haonan was shocked when he heard this statement: Wouldnt it cost money to operate so many small planes? ??It''s impossible to do any serious work on the plane these days, so the two of them can only pass the time by chatting. How could it be? Zhong Shihong also asked in confusion: The current mainstream prediction for air passenger transport in the new century is to use small short-distance passenger aircraft to gather passengers to regional central cities, and then use super-large passenger aircraft to connect these central cities. The demand for regional aircraft and general aviation is expected to be very large. So in the past two years, Embraer and Bombardier have been developing a new generation of regional airliners, the ERJ190 and CRJ700, while Boeing and Airbus are focusing on ultra-long-range mainline airliners. After being reminded by the other party, Chang Haonan finally remembered that in the 1990s, there was a trend that the future development direction of passenger aircraft would be very big or very small, which made several major technology manufacturers And took many detours. It was not until the new century came that everyone discovered that the reality was completely different from their imagination. No one wants to go through so many transfers and will try their best to choose direct flights. Moreover, the growth rate of air passenger traffic is much faster than expected, especially in places like China and North America. Even the route between two non-major cities, It is also worth flying with a small mainline airliner. ? So ultra-long-range or ultra-large giants such as the Boeing 777 and Airbus A380 quickly fell out of favor. Before Chang Haonan''s crossing, there were very few passenger flights operated by these models. As for the regional airliner that once had high hopes... ? It is not difficult to see some clues from the fact that Bombardier and Embraer sold themselves to Airbus and Boeing respectively. Of course, if we only look at the results, 150-180-seat models such as the Boeing 737/Airbus A320 have always been the absolute rulers in the market. However, in a short period of time at the turn of the century, they were in the aviation market. The status in the minds of companies and aircraft manufacturers has indeed had some twists and turns. And this seems to be an opportunity that can be exploited. (End of this chapter) Chapter 175 remelted layer Chapter 175 Remelted Layer What he just thought about is actually very simple. ??It is to find a way to get aircraft manufacturers to agree to produce some important parts of "non-important models" in China while they are focusing their main efforts elsewhere. Main frame, landing gear, wings and even fan blades. On the one hand, it can provide many high-end manufacturing jobs in the country. On the other hand, it can also allow more aircraft manufacturers to gain experience in manufacturing passenger aircraft parts in advance and train some skilled workers. ?Shanghai, to be honest, is not a suitable place for manufacturing. Its too expensive for every inch of land. ?Although Hufei cannot move anywhere at will, once the production of domestically produced passenger aircraft increases, parts production will definitely have to be allocated to other factories under the aviation industry. The ARJ21 and C919 on the original timeline adopted this form, with scattered production in various places, and finally completed assembly and testing in Shanghai. ?In this life, the localization rate of domestically produced large aircraft will definitely be higher than in the previous life, and the number of companies and factories involved in the entire industry chain will also be greater. Just relying on one Figure 214, which has a high probability of not having a very high output, will definitely not be able to feed so many factories. So the earlier you prepare for this, the better. If it can be successful, then units such as Factory 112, Factory 132, Factory 410, Factory 172, and even the cities where they are located will benefit from it. ?However, Chang Haonan is not the kind of person who likes to open champagne at halftime, so on the surface he still chatted with the other party calmly. You know a lot about this. The aviation manufacturing industry and the air transportation industry can be considered to be two fields that have almost nothing to do with each other. Although Zhong Shihong is the director of the technical department of Factory 410, the things he mentioned earlier about civil aviation obviously did not come from his usual work. . Of course, Ive loved airplanes since I was a child. When Zhong Shihong said this, his face was filled with memories of his childhood: When I was in elementary school, I watched a movie about air combat with adults. Because of my poor health, I knew I would definitely not be able to be a pilot, so I always regarded this as a hobby. Later, when I got the opportunity, I applied for transfer from Factory 103, which was engaged in mechanical equipment, to Factory 410. A story similar to Chang Haonans. Because he couldnt fly a plane, he chose to build one. But when you work in the 410 Factory, you rarely see a complete aircraft, right? The former asked with a smile. Indeed, most of the time I am immersed in the workshop, dealing with aviation engine parts. Zhong Shihong smoothed his hair: But another reason why I chose to transfer here is that there are more civil aviation aircraft here in Shengjing. I have saved a little money over the years, bought a camera and often go to the airport to take pictures..." As the two of them chatted, the plane quickly landed at Lianhai Airport. ?However, transportation and communication in this era were not smooth. It was not until that afternoon that the group finally met Professor Zhou Zexuan, the director of the Analysis and Testing Center of Lianhai University of Technology, after looking in several wrong places. You guys had a hard time on the road. Professor Zhou took the two turbine blades and looked at them over and over: To perform metallographic inspection on the inside of these... uh, small holes, right? What magnification is required?" Its best to measure inside and around the hole. First use 200x and 500x magnification to look at the overall appearance. If problems are found, then look at the specific details. No problem, this is quick. Because of confidentiality issues, Zhou Zexuan did not ask students to help. Instead, he put on gloves himself, wiped the surface to be tested with alcohol, and then immersed the sample in the reagent. ?While waiting for the chemical erosion, Chang Haonan asked something that he had been curious about on the road: Speaking of which, Professor Zhou, since foreign manufacturers prohibit you from moving the instrument, they probably want to restrict the specific use of the equipment. If you test it directly for us, wont there be any risks? After hearing this question, Zhou Zexuan sneered directly: "Restrict the specific use of personal P. After the equipment is purchased, unless they send someone to watch here at all times, there is no way they can know what we have done with it." The reason for writing this kind of clause is, firstly, to make us feel disgusted. Secondly, and most importantly, we are worried that users will go to third-party manufacturers to buy wearing parts and perform repairs, which will cause their profits to be damaged. Some parts have no technical content at all and cost only a few yuan at most. The Gringo Lion Costs thousands of dollars each. If you dare not use theirs, they will refuse to provide you with after-sales service. If you can buy domestically produced equipment that you can use, who would be willing to suffer this kind of anger..." Chang Haonan understood immediately. "I see" Similar to the sanctions imposed on certain institutions and schools in China in previous lives. For example, prohibiting you from using certain software. Everyone knows that this will not have any real impact - the original ones are all pirated. But just doing this gesture makes you feel sick. To be honest, it is the high-priced accessories and services that cause greater losses. Before his rebirth, he had also heard that many faults of imported equipment were actually not difficult to repair, but the contract required that the original factory engineers had to deal with it. The price was extremely high, and the efficiency was extremely low. Work often had to be stopped for half a minute because of trivial matters. months or even longer. ??Everyone chatted about other topics, and soon the chemical erosion process was over. ??As the director of the Analysis and Testing Center, Zhou Zexuans work efficiency is unparalleled. It didnt take long to get the optical detection results. Several black and white photos printed on paper. ?Zhong Shihong was the first to come over, followed by others in the same group, and Zhou Zexuan was quickly surrounded by people. "Um" The latter pondered for a moment and finally gave his own judgment: The material around the hole has a uniform shape, and no cracks are found. Only a very weak uneven surface can be seen under 500 times magnification, which should be left by post-processing processes such as polishing. Zhong Shihong next to him was obviously in a good mood after hearing this comment. But before he could be happy for a few seconds, the next words made his heart suddenly lift: As for the inner wall of the small hole...the light is not very bright, but at 200 times magnification, some white strips or blocks can be seen. The shape of the inner wall of the small hole that has not been chemically etched is similar to that of the small hole here. It has strong corrosion resistance..." ??Zhou Zexuan put down the two pieces of paper in his hands when he said this: "I speculate that there should be a remelted layer structure that has not been cleaned, but the specific situation, especially the thickness of the remelted layer, cannot be seen. If you are willing to pay additional testing fees, you can use a 2500x electron microscope for further testing! " (End of this chapter) Chapter 176 Inspiration brought by drinking water ( Chapter 176 The inspiration brought by drinking water ( Zhong Shihong, who was smiling just now, froze in place with a strange expression. Other people who came with him also showed various expressions of surprise and uncertainty. ?Chang Haonan was the only one among everyone present who was not particularly surprised. The situation was similar to what he had expected. Electro-hydraulic beam machining is an electrochemical machining method. In principle, micro-cracks and remelted layers will not be produced in the formed pore structure. The main problem is that the local edge quality is not stable enough, so the detection adapted to this processing method will Focus on the area around the orifice. ??However, EDM is still thermal processing in nature, and recasting will inevitably occur during the drilling process. Although the high-pressure internal flushing liquid inside the hollow electrode can quickly wash away part of the molten material during processing, the remaining part may still produce a remelted layer with very irregular thickness after cooling, affecting product quality. If the processing method is changed without corresponding improvements in the inspection process, problems will naturally arise. ? Its just that in actual operation, the relationship between the thickness of the remelted layer and the processing current, pulse width and environmental parameters is very close, so Chang Haonan did not dare to insist on this result before seeing the test results. But it works now. There is no problem with the cost, and we hope to get the test results as soon as possible. ??Zhou Zexuan nodded and took out two turbine blade samples from the optical inspection table next to him: The Electron Microscopy Center currently has ongoing tasks, but your situation is special after all. I can apply to jump in the queue. After finishing speaking, he turned around and left. With Zhou Zexuan''s operation, everyone did not have to wait too long to get the results of the electron microscope test. "We randomly selected 16 air film holes on the blade for testing. The results showed that the average thickness of the remelted layer in the holes was 25 microns, but the situation of each small hole varied greatly. The thinnest one was only 14 microns, and the thickest one was 14 microns. Its 45 microns ??As Zhou Zexuan read out the results of the test report little by little, Zhong Shihong''s face became darker and darker. He is not a person who cares about face, but this slap in the face came too quickly... After all, he swore a few days ago that Factory 410 would definitely have no problems with EDM drilling technology. Chang Haonan''s performance was as normal as ever. He took the report from Zhou Zexuan and looked at it. After making sure that there were no other issues worth noting, he handed it to others. The air in the room became a little anxious. "this" Even though he is very reluctant to admit it, as Chang Haonan initially guessed, there was a loophole in the post-processing and quality inspection process. ? What makes Zhong Shihong even more ashamed is that Factory 410 had previously received a letter from Yan Zhongcheng and others from Fucheng, requesting a self-examination of the production process of engine hot-end parts. But they just re-sampled according to the usual testing procedures, and restarted production after finding that there were no problems with the results. Therefore, the quality problems existing in the processing of the inner wall of small holes have been missed. The evidence is right in front of you. Since you are wrong, you have to admit it. After we go back, we will hold a factory-wide workers meeting. We need to review this matter. ?However, the 611 Institute is very anxious for the turbojet 14B. After all, it involves Feifa matching work, and there is also pressure from foreign users who have expressed their intention to purchase. So before reviewing, you still have to solve the problem first. The evening after returning to Factory 410, the first thing held was a small-scale technical seminar. Based on the current domestic situation, it is definitely hopeless to switch to electro-hydraulic beam machining in the short term. Therefore, we have no other choice but to find a solution based on EDM technology. Zhong Shihong set the tone at the beginning: "Hey Gong, can you consider reducing the thickness of the remelted layer during the processing by reducing the current intensity or shortening the pulse width?" Those sitting here are all old technologies. Now that the problem has been determined to be the remelting layer, some basic principles are still not difficult for everyone. The middle-aged man known as He Gong is called He Tao, who is the section chief responsible for the EDM drilling process. Unfortunately, there is still a distance between the basic principles and actual operation. He Tao shook his head decisively: "The material processing of turbine blades is inherently difficult. Although reducing the current intensity can alleviate the remelting problem, it will affect the accuracy and position of the opening. The current current of 8 amps is already what we have determined after testing in our section. Minimum current to maintain processing quality. As for shortening the pulse width, that is beyond our control. We need to replace it with better and more precise electrodes, and the clamping equipment also needs to be replaced..." He did not continue, but the conclusion was already very obvious. ?Nowadays, this EDM small hole processing machine tool was developed after several years of hard work in the 410 Factory. Where can I find more advanced equipment? The manufacturing industry is sometimes like this. A single move can affect the whole body. Even if the principle is very simple, it often takes a long time to achieve a breakthrough if you want to implement it on the production side. Since there is no way to reduce the thickness of the remelted layer during processing, we can only consider the post-processing process. ?Zhong Shihong looked at another engineer. ?The other party coughed twice slightly, and then said: "I just looked at the test results of the electron microscope. The current 0.2mm reamer can only remove the burrs and residue on the inner wall of the small hole. Judging from the metallographic structure of the remelted layer, it is very hard and cannot be reamed through mechanical means. Completely removed. "In addition, turbine blades themselves are thin-walled parts that require high deformation. The mechanical reaming process is very difficult and very inefficient. There are hundreds of holes in the phosphor film on each product. If every small hole is processed If you do it again, I''m afraid it won''t take 100-200 working hours. Calculating, one engine will take about two months. " The progress of the discussion came to a standstill for a while. Deep hole processing is always a difficult problem in the mechanical manufacturing process. Due to its special working environment, turbine blades have more stringent manufacturing requirements. The number of air film holes is large and the diameter is small, so many commonly used polishing methods cannot be used. In fact, with the technical strength of Factory 410, it cannot even detect the thickness of the remelted layer. This is also an objective factor why they have not discovered this problem before. Chang Haonan, who had been sitting next to Zhong Shihong since the beginning of the meeting, had not spoken. He listed several major current problems one by one on the notebook in front of him. First of all, there must be something with high enough hardness so that the remelted layer can be removed. According to the results of the discussion just now, steel reamers cannot meet this requirement. The second thing is that this process cannot cause damage to the blade itself, and the clamping process should be simple enough. Finally, the processing efficiency must be high enough. It is best to be able to process hundreds of air film holes on a blade at the same time rather than one by one. Chang Haonan, who had no idea for a moment, almost unconsciously picked up the cup in front of him and took a sip of water. The fried meat with sprouts for dinner was a bit cumbersome... At this moment, a flash of inspiration suddenly flashed through my mind. It seems that...this process is somewhat similar to mouthwash or teeth cleaning? Can we consider using water... No, what about using fluid doped with high-hardness abrasives to remove the remelted layer? I cant contact the editor, lets talk about 174. The general content is that the existence of the remelting layer was discovered through testing, and by the way, the protagonist was asked to brainstorm the layout issues related to the production of large aircraft. (End of this chapter) Chapter 177 Revolution in the field of finishing (Happy National Day!) Chapter 177 Revolution in the field of finishing (Happy National Day!) After grasping this fleeting thought, Chang Haonan suddenly felt that the road was getting wider. The hole diameter (tooth gap) of 0.3 mm is an unwieldy size for a reamer (toothpick), and the microstructure inside the hole is also very unfriendly to the reaming process. ??Moreover, the reamer has to rotate after all, so it cannot be made of a material with high hardness but brittleness, otherwise it will easily collapse. Just like a toothpick that breaks easily during use. But to change the idea, process ultra-high hardness corundum or diamond into powdery objects with a particle size of about 100 microns or even smaller, then mix them with water or oil or other fluid matrix, and pressurize them The air film holes flowing through the blades can completely meet all the conditions written on the notebook. This is the idea behind the dental rinse used by many people in later generations. Comrades, I have an idea. ?Chang Haonan put down the water glass in his hand. Everyones eyes turned over instantly. Although he is not an engineer at Factory 410, he does not seem to have any experience in the manufacturing field. But in the past six months, Chang Haonan has created too many miracles on the J-8C and Turbojet 14. Enough for everyone here to ignore his intellectual background. I thought of a new way of grinding. Chang Haonan stood up as he spoke, walked to the blackboard not far behind him, picked up a piece of chalk, and drew something similar to a funnel on it: "The general structure of this equipment should be like this. There are two symmetrical cylinder-shaped containers. The parts and fixtures are fixed in the channel between the two containers and the piston in the cylinder squeezes the abrasive to flow back and forth. The relationship between the abrasive fluid and the surface to be processed The flow between them can produce grinding effect. ?His drawing skills are average, and many of the proper nouns in mechanical processing are not used strictly enough. Fortunately, the audience below are all knowledgeable, and they can still understand the schematic diagram on the blackboard even after drawing and talking. Sandblasting process? Soon someone said a noun: "It is said that in Germany, this method is used for polishing when manufacturing internal combustion engine cylinders, but it mainly relies on the impact of the spray material on the surface of the workpiece. There are certain requirements for the particle size and size of the abrasive, which is difficult to use in our application. Above the air film holes of this size. This process name is new knowledge to Chang Haonan. He has not been exposed to it before, but from the other party''s words, he still heard the difference between his own thinking: So we cant copy these processes directly. Chang Haonan also drew a key symbol on the abrasive part inside the container: "The fluidity and controllability of pure solid abrasives are too poor. During the processing process, they will inevitably cause damage to the parts of the turbine blade surface that do not need polishing. So my idea is to use very fine hard particles, such as Silicon carbide, white corundum, and diamond are mixed with related liquids to form a paste-like, semi-fluid medium as an abrasive. " "As the saying goes, water has no shape. Such soft abrasives can automatically drill into the holes that need to be polished under pressure like a liquid without having much impact on the outer surface. Don''t talk about our straight-through air film holes. , even curved holes and special-shaped holes with more complex internal structures can be processed using this method! After finishing a large paragraph of content, the whole conference room was silent. Everyone, including Zhong Shihong, began to seriously think about the feasibility of the ideas on the blackboard. ??Although the hand-drawn chalk drawing itself is slightly abstract, the ideas contained in it are obviously extremely valuable. Grinding, similar to turning, milling, planing, etc., is also a typical cutting processing method. However, with the increasing demand for surface smoothness and the emergence of various non-planar and non-axisymmetric parts, traditional grinding machines have been difficult to meet the increasingly bizarre industrial requirements. ?Especially the concave and convex surfaces and curved channels, which cannot be effectively processed by ordinary tools and molds. This is also a recognized problem in the field of finishing today. The answer currently given by developed countries is electrochemical grinding. It is said to be grinding, but in fact what really works is the electrolysis process. The workpiece to be processed is used as the anode of the electrolytic cell, and polishing is achieved under the condition of electricity through the difference in chemical potential between the metal matrix and the surface impurity layer. Obviously, this requires an extremely strong electrochemical level. As long as the control conditions fluctuate slightly, intergranular corrosion can easily occur, causing the entire product to be scrapped. ??If Factory 410 has this ability, it would be better to use electro-hydraulic beam processing from the beginning to avoid the formation of a remelted layer from the root. In fact, this is also a common problem in Chinas manufacturing industry today. ? Its not that a certain key technology is not up to standard, its that everything is not up to standard. With so many things going on, its even difficult to find a quick and effective starting point. The 410 factory is just a microcosm of it. This leads to the fact that even if some technological breakthroughs are made, such as electric spark drilling technology, there are still shortcomings in other aspects of the entire process, and the final product is often still unsatisfactory. Chang Haonans idea is equivalent to making the shortest board of the barrel longer. If it can be realized, the 410 factory will definitely not be the only one to benefit. The entire machining industry, and even the entire manufacturing industry, will directly benefit from this! I think this idea...is worth a try! ?The first person to speak was the engineer in charge of the product post-processing section: But according to my experience, the core technology of this process should be the formula of soft abrasives and the pressure parameters during grinding of different workpieces. If we have to start from scratch in this aspect, we may have to be prepared for a long and difficult battle. According to common sense, his concerns are obviously justified. ?This thing is somewhat similar to materials science. It is difficult to determine the direction directly when you first start researching. You often need to cast a wide net to try your luck. ?For example, the composition, proportion, and particle size of the abrasive particles, as well as the viscosity and chemical properties of the abrasive matrix, etc., all need to be tried out bit by bit. As the research process becomes more and more in-depth, we will gradually find some rules and reduce blindness to a certain extent. ?However, there happens to be an unconventional person here. Dont worry about that. The most troublesome part in the eyes of others is actually what Chang Haonan is best at: Regarding the development of soft abrasives and the control system during processing, I can use some simulation methods to initially determine the most feasible research direction. The progress should be much faster than you expected. But other parts of this grinding equipment, especially the tooling fixture and the mechanical structure that specifically implements the piston extrusion in the cylinder, need other people to help me complete it. After Chang Haonan finished speaking, he gently put down the chalk in his hand. What came into view were a dozen faces full of stunned expressions. This... can also be simulated? Additional update (End of this chapter) Chapter 178 Seiko Project (2-in-1) Chapter 178 Seiko Plan (two-in-one) The person who asked the question was Yao Mengna. She just felt like she was back to that night when she just met Chang Haonan, when he explained with a flat face why the CFD method could not be used to simulate the vibration problem of straight wings. ?Yao Mengna once thought that after such a long period of hard work, at least she would not encounter such embarrassing scenes again. But apparently she still slightly overestimated herself. When the subject was extended to another field, the distance between the two seemed to be suddenly widened again. It really doesnt work using traditional methods. ?Chang Haonan rotated the blackboard 180 to the other side. In fact, he had only just sorted out his ideas about using the discrete element method to numerically simulate soft abrasives, and had tried it out through the system. [Based on the discrete element theory, establish a three-dimensional model of abrasive particles, set the size, shape, concentration and density of the model, consider the coupling effect between fluid and abrasive particles, and establish abrasive particles and abrasive particles, abrasive particles and fluid, abrasive particles The contact model with the inner wall surface simulates the force and movement of abrasive particles in the fluid, predicts the movement rules of discrete phase abrasive particles, analyzes the removal mechanism of workpiece material by abrasive particles during abrasive flow polishing, and predicts the effect of abrasive flow polishing...] Although the discrete element method has been created in the 1970s, the attention it has received so far is basically limited to the field of geotechnical engineering, and is far less widely used than the continuous element method. The result was naturally a success. Consumption of science and technology points for improving the project: 25 points, 250 points for directly giving project results. Are you sure to carry out the research project: Soft abrasive polishing and material surface removal mechanism based on discrete element method? This time, Chang Haonan did not hesitate for too long and chose to confirm. On the one hand, this is not an area that he is good at, and more importantly, due to the technical zero principle that triggered quality problems, not only the production of the turbojet 14B, but also the turbojet 14A has been temporarily stopped. Now he is preparing to The four batch 00 J-8Cs delivered to the troops for trial have already started work in the workshop of Factory 112. No one wants to see the completed airframe unable to be delivered because it has to wait for the engine. On the other hand, the control theory paper published on IEEETransactionsonAutomaticControl allowed him to directly obtain up to 100 scientific research points and 2500 theoretical experience points, so there is no harm in splurging on the points. In an instant, a huge amount of knowledge and experience poured into my mind. Even though he had had this experience many times, he was still fascinated by the feeling of being filled up. Chang Haonan took a deep breath, raised his hand to gently support his swollen head, and continued as if nothing happened: As we all know, whether it is the finite element method or the finite volume method, an important basic assumption is that the dielectric material under study is in a continuous state. "Under this assumption, the physical properties of materials can be expressed by continuous functions. These functions that express physical properties are usually called physical equations. By combining the physical equations of the material, the equilibrium equation of the problem, the boundary conditions and the initial conditions, we can Obtain the governing equations of the problem and obtain numerical solutions under specific conditions. However, this type of numerical method has great problems when dealing with bulk materials composed of a large number of solid particles, because each particle in the granular material moves independently, which means that each unit node is likely to undergo large deformations. and displacement. But we can completely change the perspective and focus on the detailed description of the contact behavior between particle objects, between particles and boundary models, and the overall balance relationship, that is, discrete element thinking. Relate the contact behavior between objects with the momentum balance equation of the system, establish a differential equation of motion for each particle unit, and the motion equations of all particles describe the overall motion law of the discrete system. "The main research process, I currently judge, can be divided into four steps. The first is to use mathematical language to describe the surface shape, movement and wear of the boundary model, and the second is to make judgments on the contact between the particles and the complex boundary model..." Chang Haonan talked about some basic theories for about twenty minutes, and then found that most of the people below looked at him with clear eyes. Fortunately, there are still a few younger engineers, and Yao Mengna is thinking seriously, and it seems that she understands at least part of it. This is enough. Similar to the situation at Institute 601, there are not a few people who need to cooperate with him in numerical simulation work. More people still have to be responsible for specific equipment development work, that is, to actually design and manufacture an adaptive software. The abrasive grinder comes out. As for the issue of discrete element simulation, interested comrades can talk to me in detail after the meeting. I probably need 3-4 people to help me with the programming and numerical analysis process. As for the remaining machine tool design part, I think we may need to find some external assistance. After all, the main business of Factory 410 is to manufacture aerospace engines rather than machine tools. It would be okay for them to make some technical improvements, but it would be a bit too difficult to build a new grinding equipment from scratch. This is not difficult. Zhong Shihong, who saw the dawn of a solution to the problem, suddenly became energetic: Shengjing No. 1 Machine Tool Factory has always been a cooperative brother with us. They should be more experienced in this area. In particular, the development of abrasives and control systems have been completed by regular workers, and the rest is purely mechanical. As for the specific method of cooperation... Zhong Shihong lowered his head and thought for a while: "I think the cooperation between the two factories is not enough. If this equipment can be developed according to Chang Gong''s ideas, it will be a huge encouragement and promotion for the overall development of our country''s manufacturing industry. It just so happens that it is the end of the year. so" My opinion is to urgently apply for a project from above, called the Precision Works Plan. The goal is to systematically improve the production and manufacturing levels of various manufacturing plants in our aviation industry system! Obviously, Zhong Shihong also has some ambitions hidden deep in his heart. For him, even if the main person to complete this project can only be Chang Haonan, as the leading initiator and the director of the technical department of the 410 Factory, as long as it can be successful, the benefits will definitely be indispensable. From a larger perspective, if this new finishing method can be quickly promoted, it can also solve the urgent needs of many brother units. ?Although the original intention of proposing this idea was just to polish the inner wall of the air film hole, its application range is obviously very wide. ? Even if we only consider the field of aviation manufacturing, there are a large number of variable-diameter pipe parts, such as fuel and oil pipelines, fuel injectors, air guide holes, etc. The production efficiency and yield rate of each type are long-standing problems. Very good, then... lets do it. ?Chang Haonan has already experienced the benefits of doing this kind of project before. ?Funds and manpower are sufficient, and various resources applied for are basically given priority to ensure a green light all the way. More importantly, the personnel subsidies are very generous. Even Factory 182 can give out a bonus of 20,000 yuan at a time, let alone Factory 410. ??He considers himself not a person with strong material desires, but who wouldn''t want to earn more money while completing projects. ??For such an urgent matter, it is of course impossible to wait until the project is approved before starting construction. So the next day, before Zhong Shihong started writing the application report, several key personnel from Shengjing No. 1 Machine Tool Factory had already arrived at Factory 410. The team was led by a fat, middle-aged engineer named Han Youde who looked to be in his forties and looked elegant. ?After hearing Chang Haonans complete idea about the new grinding equipment, he was stunned for about a second. Then he spoke a somewhat obscure foreign language phrase almost subconsciously. ?Chang Haonan didnt understand, but it wasnt English anyway. Fortunately, the other party reacted quickly, picked up a sharpened pencil from the table, and started drawing directly on a piece of drawing paper. ?Compared to Chang Haonan of the abstract school, Han Youde''s painting skills are obviously much better. Although it is a schematic diagram that does not even use a ruler or compass, it is still horizontally, vertically, and very regular. "often" Chang Haonan. Someone gave a just-in-time reminder. I came into contact with the equipment described by Comrade Chang Haonan more than ten years ago when I was studying in East Germany. Directly translated from German, it is called fluid abrasive processing, or abrasive flow processing. ?While Han Youde was speaking, he did not stop moving his hands. In a few minutes, the general outline of a machine appeared on the paper. The principle of this grinding method is not difficult, and the equipment is also very simple. Except that the fixture needs to be customized according to the parts to be processed, I can complete the design of other parts in about four to five days. Master Chang Haonan himself heard more than one gasp ? also includes his own. So fast? Similar questions are usually asked by others to confirm to him, but now the situation has changed and it is his turn to ask. The main reason is that this efficiency is indeed a bit too exaggerated. "Because this abrasive flow machining method is actually not a new technology. As far as the machine tool itself is concerned, it is almost the simplest type. There are no high-speed rotating parts or high-pressure parts. It doesn''t even require any design. Even if I am... If you copy the equipment that East Germany saw, it will not fall behind in another twenty years. ?Han Youde threw the pencil on the table: The real difficulty of this process lies in the design of the abrasive ratio and control system. Such a good idea has never been widely used abroad. There are very few people in China who even know about it. This is why. "Due to the inherent defects of soft abrasives, they have to be specially designed for almost every different workpiece. The machine I saw in East Germany was used to process a high-pressure common rail pipe. We can look at the equipment casually, but the abrasives The recipe is top secret and it is said that it took them almost two years to find the optimal solution for that part. It doesnt matter, this part of the job is what Chang Gong is best at. Someone next to me interrupted. Looking at it this way, I think this craft is quite interesting. Hearing the words of the people around him, Han Youde raised his head and glanced at Chang Haonan next to him. ?But he didnt say anything, he just nodded calmly: Anyway, its not easy to come up with this idea without seeing abrasive flow equipment before. Lets get started. Although the project entities are 410 Factory and Shengjing No. 1 Machine Tool Factory, these two companies obviously do not have enough conditions for Chang Haonan to do numerical simulation. Fortunately, the current focus of work at 601 has shifted to Project 11. The computing center is mainly responsible for digitizing the Su-27 design data together with Russian experts. There is currently no heavy calculation work to be done. ? So after going round and round, I finally went back to No. 601 to borrow a few workstations and three people including Lin Shikuan. Although the discrete element method is quite different from the continuous finite element method in terms of theoretical basis and calculation ideas, numerical simulation is an ever-changing thing after all. Several people who already have the foundation did not let Chang Haonan spend too much chalk. and tongue, you can roughly understand the work that each of them has to accomplish. ?Especially for Lin Shikuan, it has been like a sudden enlightenment in recent months, and he has made rapid progress. When we first met, he didnt even understand how to digitize paper materials, but now he can draw inferences and put forward some of his own understanding. ?After receiving her mission, Yao Mengna did not leave immediately, but approached Chang Haonan: Junior brother, I think this contact judgment problem only requires a neighbor search and then an intersection test. It doesnt seem to take as long as you arranged? If we talk about the matter, it is indeed true. The air film hole on the turbojet 14 is a circular hole, the flow path is very simple, the grid construction and the selection of boundary conditions are easy, and the calculation amount is not large. ?Chang Haonan has opened the workstation at this time and is verifying the algorithm according to the ideas he has written long ago: But I have some further ideas. "The Korean worker at the machine tool factory was right when he said that soft abrasives need to be designed individually for each workpiece. This is not difficult for us to achieve. However, most corporate engineers have average theoretical knowledge and we cannot expect them to learn it from scratch. Discrete Element Fundamentals and Computer Programming. "So, I plan to develop a three-dimensional particle discrete element simulation software that is relatively easy to use based on the ideas I used when doing CFD. This process has great application potential. Only by lowering the learning threshold can more manufacturers use it. Benefit. Hearing this answer, Yao Mengna''s red lips moved slightly, but she couldn''t make any sound. She just stared at Chang Haonan''s profile for a while. I dont know when she started, but she liked to peek at each other from this angle. ?Obviously he is his junior disciple, but not only does he have a stronger scientific research ability, but he even thinks about things from a different perspective. "well" After a short while, Yao Mengna sighed softly, turned around and left with a complicated expression. (End of this chapter) Chapter 179 Domestic Sibei is saved! Chapter 179 Domestic Sibei is saved! With the help of the system, the entire numerical simulation process went more smoothly than Chang Haonan expected. The design of the discrete element simulation software took about a week, but sharpening the tool did not waste time cutting wood. The software created under the system buff was very efficient. It was quickly based on the actual conditions of several typical workpieces and comprehensively considered the processing efficiency. and polishing effect to find the optimal solution. ?The abrasives are silicon carbide particles with an average particle size of 400 mesh, and the fluid is prepared using aviation kerosene as the base, and adding a certain amount of suspending agent, emulsifier and antioxidant. ?This formula is very versatile and can be used for most deep hole and variable-diameter pipe workpieces. Chang Haonan even spent an extra day to complete the design of the PLC program. ?This procedure is also the top priority of the abrasive flow processing system. Because soft abrasives are not as "obedient" as grinding wheels, it is easy to cause over-processing. That is, after the remelted layer has been removed, the base material on the inner wall of the air film hole continues to be ground, eventually causing the workpiece to be scrapped. A good PLC program can avoid this problem to a large extent. On the other side, although Han Youde looks a little arrogant, he does have real talent and practical knowledge. It only took him three days to complete the overall design of the abrasive flow equipment. When Chang Haonan combined the abrasives and PLC program When it was done, the equipment of Shengjing No. 1 Machine Tool Factory also went offline while the masters worked in three shifts overnight. ?Zhong Shihong has been so happy these days that his face is almost smiling Since the application he submitted has been approved, the Seiko Plan has officially been established. ? And considering the huge impact that this plan may have in the future, the higher-level departments directly promoted it to a national-level project led by the Committee of Science and Industry. ?Even Chang Haonan, who has no official position, was designated as "General Technical Advisor" by Ding Gaoheng. As the flagship of the entire plan, this abrasive flow processing equipment has naturally received considerable attention. ?The grinding process may seem inconspicuous, but it is actually an essential part of the finishing process. So almost all the units participating in the Seiko Project sent technical personnel to see with their own eyes the new tricks produced by Factory 410. In the following day, the raw materials on the list were purchased one after another and transported to the 410 Factory. After a series of processes such as emulsification, stirring, and blending, they finally formed a lead-gray paste-like semi-solid, which was then poured into the prepared abrasive tank. among. Operators begin the final technical inspection before starting up the equipment. Since there were so many onlookers and they had to maintain a necessary safe distance from the production equipment, many people could only take a glance at it from a distance. That black thing is the core technology they developed? An old engineer with half white hair was a little doubtful. Soft abrasives look like a lump of half-melted ice cream, and they really dont look that good. ??And in general understanding, the process of "grinding" is to use a harder thing to remove a softer thing. Soft abrasives will indeed have an impact on the traditional concept. ? Judging from the temporary pass hanging around his neck, he comes from Bingcheng Boiler Factory. ?This factory does not burn boilers, but makes boilers. Most of the coal-fired boilers used for power generation in the country and many power boilers supporting steam turbines come from here. Recently, they are bidding for a power boiler production project for a new guided missile destroyer, but they have been troubled by insufficient processing and manufacturing capabilities, and several key indicators cannot meet the requirements. At this most critical juncture, the news came that the Science and Technology Commission was presiding over the launch of the Seiko Plan. Bingcheng Boiler Factory almost rushed to get on the bus at the last moment before closing, and it did not know much about the situation at the 410 Factory. few. Yes, I heard a report last night. They said it can increase the polishing efficiency of irregular surfaces by more than five times, and it can also handle difficult workpieces such as deep inner holes and variable-diameter pipes. The other engineer next to him from the 408 Factory of Shaanxi Diesel Heavy Industry was much more comfortable. Their situation is similar to that of Bingcheng Boiler Factory. Recently, they were responsible for the licensed production of MTU diesel engines, but the crucial localization rate indicator was stuck at a threshold and could not make further breakthroughs. So after learning that This Seiko project required participation from the first moment, and a large amount of project funding was also provided. "I''ll go, 5 times...can''t it be a satellite?" Lets see, it shouldnt take too long. ?While the onlookers were discussing, the trained technical workers had completed loading and setting the processing program. ?This process was originally planned to be operated by Chang Haonan himself, but the latter believed that the advantages of this "fool-like" software could be better demonstrated by workers with ordinary education levels. A lubricating oil elbow on the turbojet 14 is tightly fixed by a clamp Factory 410 itself does not have the ability to conduct metallographic inspection of the inner wall of the air film hole, so in order to more intuitively demonstrate the ability of abrasive flow processing, Zhong Shihong and Chang Haonan finally decided to make a variable-diameter bent pipe that is equally difficult to process. To get the "first blood" of this device. To be precise, it should be half a piece, because a part was cut off from the front and will be used to compare with the situation after processing. The start button is pressed, and the compressor makes a buzzing sound. ? There seemed to be no change at first, but after about ten minutes, toothpaste-like waste abrasive began to be squeezed out from the preset drainage holes around the clamp. The workers who had been waiting for a long time next to them immediately began to fill in the prepared new abrasive. Processing continues. No one present felt bored.????For such a complex workpiece polishing process, it is normal for it to last several hours. After about 50 minutes, the clamp is opened. ? ? There seems to be no change in the appearance of the workpiece after being washed with aviation kerosene. Its less than an hour...Isnt there not enough time? If its five times more efficient, its pretty much the same... Operators were not disturbed by these discussions: Get on the cutting machine! ??The inner diameter of the lubricating oil pipe is enough to directly insert the probe into it for surface roughness testing, but from an intuitive perspective, it is definitely better to cut it directly. The two workpieces, polished and unpolished, were quickly divided into two parts. Under the factory lights, you can see the difference even with the naked eye. The inner wall of the workpiece on the left is so bright that it can almost be used as a mirror. Of course, for the sake of rigor, the tests that should be done still need to be done. The inner wall of the workpiece before polishing has an average roughness Ra value of 1.466. ?Chang Haonan personally went into battle and read out the first test result displayed on the screen. ??The crowd of onlookers who were still discussing just now also returned to silence. Everyone is waiting for his next words. Inner wall of the workpiece after polishing, average roughness Ra value=0.367! The surrounding area was boiling almost instantly Im a good boy Can it really be so fast? ?On the other side of the crowd, several men wearing aviation industry work clothes looked at the machines in front of them with almost glowing eyes. As a brother unit within the system, it is natural for them to receive some special treatment when visiting, so they can observe the entire process from a better angle and closer distance. Zhang Gong, this A younger engineer said in a voice trembling with excitement: If this can be used, Sibeis localization should..." Obviously, they came from the 430 factory in Haojing. ??Although the introduction and assembly of the Spey MK202 engine was completed in the mid-1970s, due to various reasons, the actual localization work went through many twists and turns, and it was not until 1995 that it passed acceptance. ? It is said to be "domesticated", but in fact, the localization rate of Sibei at this time is only 70%, and a large number of core components are still imported from stocks more than ten years ago. Yields are low and unsustainable. ?Originally, when the Sibei technology was introduced, there were many conflicts between Haojing and Shengjing. But as the original Spey engine on the JH-7 gradually reaches its end of life, the pressure on the former is also increasing day by day. ?Especially since the Turbojet 14 made big news at the Xiangzhou Air Show some time ago, it would be absolutely false to say that I am not jealous or envious. So Factory 430 did not care about the issue of face and directly sent over a group of engineers responsible for the Sibei localization project. It should be a big step forward! The middle-aged man known as Zhang Gong said and punched the air in front of him: It is better to ask the 410 Factory to do things than to ask the British to do things. Ill go find Zhong Shihong myself! (End of this chapter) Chapter 180 PlayerUnknowns Battlegrounds 430 Factory Chapter 180 PlayerUnknowns Battlegrounds 430 Factory There is no doubt that the machining results of the live demonstration were an unprecedented success. The lubricating oil pipe that was cut on the spot directly brought the atmosphere of the scene to the extreme. The Ra value of 0.367 has even exceeded the minimum requirements for mirrors in this era. Even in this kind of exchange meeting where everyone is an industry insider, it is still very important to catch peoples attention with a shocking program effect. Otherwise, there would not be all kinds of exhibition boards and posters that have been carefully crafted with countless efforts at those academic exchange meetings. In fact, although many units have shown themselves to be actively participating in the Seiko Project, a considerable number of them are particularly active simply because the project is directly led by the Science and Technology Commission. Put simply, it means making a gesture of support. ? Like Shaanxi Diesel Heavy Industry 408 Factory, there are even fewer people who directly express their willingness to pay and help. During the process of processing just now, Chang Haonan carefully observed the surroundings and found that there were still many representatives sent by the factory who did not quite believe that this plan could really produce anything. ?However, this situation was within his expectation. ?In this era, or even twenty years later, when it comes to the field of finishing, people generally think of countries such as Japan, Germany, and Switzerland. ?If the ideological stamp is so easy to remove, it wont be considered a stamp at all. In such an environment, it can be said that Zhong Shihong dared to take the initiative and propose this fine work plan, which can be said to be an extremely courageous act. This is also the main reason why Chang Haonan chose to support the other party Its time to disenchant everyone. Minister Zhong, after today, Factory 410, and of course you, will probably become the leader in the field of finishing in the entire Science and Technology Commission system. ?Chang Haonan came to Zhong Shihong not far away and said in a half-joking tone. Hey, its okay for others to say this, but when you say it, youre flattering me. ?Zhong Shihong looked at the fiery processing site and couldn''t hold back the smile on his face. ?But he was not carried away by joy: Brother, you are the technical general advisor of the Seiko Project. My family knows my own affairs. My project application was approved and I was able to receive such attention because of your light. Old clock! ?At this moment, a deep voice came from behind the two of them. Chang Haonan turned around and saw an engineer about the same age as Zhong Shihong trotting over. Lao Zhang? The latter is obviously very familiar with this person: Factory 430 sent you directly here? The two shook hands directly after meeting. Chang Gong, let me introduce to you. This is Zhang Zhenhua, the technical director of Haojing 430 Factory. ?Zhong Shihong took the lead in introducing the identity of the visitor to Chang Haonan. Hey, the position of your Minister of Technology has been vacant for several years. Whats the difference between being a principal and a deputy? You cant mess around with that either Zhang Zhenhua chatted briefly with Zhong Shihong, and then took the initiative to shake hands with Chang Haonan. ??Although he didn''t know the young man in front of him, since Zhong Shihong chose to introduce his identity first, it showed that the other person''s status was not low, and he was definitely not an ordinary engineer from the 430 Factory. Lao Zhang, this is Comrade Chang Haonan, the technical general advisor of Seiko Project. The overall idea of ??the abrasive flow processing equipment we are showing today was proposed by Chang Gong. Chang Haonan ?Zhang Zhenhuas eyes widened instantly when he heard the introduction. ??This name is now quite famous in the aviation industry system, not to mention that he also holds the title of general consultant. Sometimes, even if the same person wears a hat, even if it is just a hat without much real power, his status in other people''s hearts will be completely different. "I heard that you, Mr. Chang, played an important role in the technical improvement of the turbojet 14 in the 606 Institute this time?" Zhang Zhenhua has not forgotten why he came here. ??Reminiscing with Zhong Shihong is just a way to get into the topic. The core is to find a way to revitalize the localized Sibei. The technical level of Factory 430 is inferior to that of Factory 410, and the research and development capabilities of supporting institutes are better than nothing. This domestic Sibei project is a matter of life and death for them. ?Thousands of mouths in the whole factory are waiting for food. ??If self-rescue fails, we can only consider stripping off assets and employees like Factory 420 and then selling the land... ?However, the economy of Haojing is not as developed as that of Chengdu. Even if you want to sell yourself, you may not be able to get a good price. So the pressure on Zhang Zhenhua is not small at all. In his eyes, Chang Haonan standing in front of him could save lives! Well...it has played some role. ?Chang Haonan nodded. Although his words were not too obvious, it was equivalent to recognizing Zhang Zhenhua''s statement. ??The latter almost couldn''t hold back the surprise in his heart, and bit the tip of his tongue to prevent himself from losing his temper due to excitement. After taking a few deep breaths, he decided to get straight to the point. The unhappiness between Factory 410 and Factory 430 actually happened more than 20 years ago. For the generation of Zhong Shihong and Zhang Zhenhua, it was not something that was unspoken. Besides, completing the project is more important. Lao Zhong, General Counsel Chang, I hope to obtain some technical support on aero-engine design and manufacturing within the framework of the Seiko Plan. Of course, in terms of funds, we can float it upward based on the internal allocation price. Nowadays, all factories have basically been transformed into enterprises, so even among fraternal units, accounts must be settled clearly. The two people across from each other looked at each other. ??The meaning in Zhong Shihong''s eyes was very clear, that is, let Chang Haonan make the decision. The latter can certainly guess what Factory 430 is going to do when it comes to ask for help at this juncture. It is nothing more than that the Turbofan 9 project is in trouble. ?This was originally the purpose of the Seiko Project, so it was naturally impossible for him to refuse. ?Especially since this project has just started, it needs to achieve some results quickly. The Seiko Plan is now led by the Science and Technology Commission. ?Zhong Shihong, who proposed the project, is already very satisfied with it. On the contrary, Chang Haonan began to feel that this was not enough. Because he remembered that just six months later, in June 1997, a strategic scientific research plan that would affect the next two decadesthe National Key Basic Research and Development Planwould be born. Later it was often referred to as the "973 Plan". If you do it properly, you can definitely get a free ride on this. ? Once successful, it will be a huge benefit to both the Seiko Project itself and Chang Haonan himself as a technical consultant. But now that the Turbojet 14 is close to being finalized after all, it has already had its share of the limelight, and it is difficult for the Seiko plan that was just approved to gain popularity. ??As for the Turbofan 10, it has not yet been revealed, and it is almost impossible to produce anything that can be called a "result" within half a year. ?At this lean time, assisting Factory 430 in promoting the localization of Sibei is not only helping the other party, but also helping yourself. So Chang Haonan nodded directly: How about we talk in detail after dinner? As soon as these words came out, the two people next to him showed expressions of surprise and surprise respectively. Arranging a separate time for communication instead of having a casual chat at this exhibition clearly shows that Chang Haonan attaches great importance to the situation at the 430 factory. This kind of attention was obviously something that even Zhang Zhenhua himself did not expect. Let alone Zhong Shihong. (End of this chapter) Chapter 181 A few things about Turbofan 9 Chapter 181 A few things about Turbofan 9 ??Although he didn''t quite understand why Chang Haonan was so interested in the domestic Sibei from Factory 430, Zhong Shihong didn''t ask any more questions. He knows that he should unconditionally support all decisions of the general technical advisor. At least that is the case if it does not seriously affect the interests of the 410 factory. So that evening, the two met in a small conference room with several technical backbones sent by the 430 factory. Zhang Zhenhua spread out some of the technical materials he brought on the conference table. General Counsel Chang and Director Zhong, the main work our factory is currently doing is to strive to localize the SPEI MK202 engine introduced in the past in accordance with the deployment of superiors. This model is currently planned to be named Turbofan 9 Qinling. At present, the navy and air force aviation units recognize the combat capabilities and cost-effectiveness of the JH-7, and hope to equip more aircraft of this type, so there should be a lot of turbofan 9 equipment in the future. He spent a few minutes briefly introducing the status of the Turbofan 9 project. ?Of course this link is mainly for Chang Haonan. After all, he is only in his early 20s, so normally he shouldnt know much about things in the late 1970s. ?Chang Haonan was also happy to take some time to listen to it, otherwise it would be difficult for him to explain where his knowledge about Turbofan 9 came from. Besides, there are some secret history-level things in it that he really didnt know before. In short, Zhang Zhenhuas idea is to directly purchase equipment or engage in cooperative research and development through investment. First, he can imitate the original Sibei MK202 to solve the urgent needs of the JH-7. Then, if Chang Haonan still has extra energy, , then it would be best to give the Turbofan 9 a radical improvement just like the Turbojet 14. "Um" Chang Haonan looked at the information about Sibei on the table and did not immediately give a positive answer. Instead, he touched his chin and thought for a while. ?This moment of hesitation made Zhang Zhenhua, who was sitting opposite, feel nervous again after he had just relaxed a little. Fortunately, he studied the previous experience of this general counsel in the afternoon and found that the latter had participated in the formulation of a series of independent aviation industry standards and seemed to have a strong obsession and persistence in self-reliance. ? And this kind of people are often the most disdainful of the argument that it is better to build than to buy than to rent. ?So he gritted his teeth and continued: "Many people now have the opinion that they should go directly to Rolls-Royce to buy hundreds of SPEI engines for the JH-7, but we still feel that trusting such core equipment that affects national defense security to foreign countries will Especially when it comes to purchasing from Western countries, its somewhat unreliable. Of course Chang Haonan knew that the other party was trying to provoke him with words, so he immediately waved his hand: Dont worry, I will definitely support the continued push of Turbofan 9. But the specific operation is still somewhat different from what you think. ?Zhang Zhenhua felt that he needed to keep some quick-acting Jiuxin Pills on hand. You mean ?Chang Haonan organized the language slightly: No matter who was right or wrong in the debate in the 1970s, from a current perspective, the technology of SPEI MK202 has indeed lagged behind. Except for the two indicators of military fuel consumption and maximum thrust on paper, Speys performance is not even comparable to the finalized turbojet 14A. And more importantly, its upgrade potential has been squeezed out. The ring-tube combustion chamber and excessive bypass ratio have fundamentally limited its use in fighter jets. So, the only use of this model at present is to be equipped on the JH-7 model. ?After hearing this, Zhang Zhenhua nodded helplessly. Although he is unwilling to admit it, what Chang Haonan said is all true. Spe''s design is really too old, and even in the era when it was first introduced, its performance was very average. Its thrust at medium and high altitudes is not even as good as the turbojet 7. ? It is also for this reason that the overall performance of the British version of the Phantom-F4K fighter equipped with a turbofan engine is not as good as that of the American version of the late-model Phantom equipped with a J79 turbojet engine. ?Twenty years ago, it could be said that Spey''s design concept was at least advanced, but now, especially after the emergence of the turbojet 14, the situation has changed. ?At this time, Chang Haonan changed the topic and said: But what you just said is right. The domestically produced Sibei, or turbofan 9, plays an irreplaceable role for the JH-7. So, I hope to use a more resource-efficient way to help you get the turbofan 9 out, and also make subsequent upgrades. ?Although there is no such concept at the moment, Zhang Zhenhua feels that he should be PUA, and there is evidence. ?But he had no other choice. Tell me about it. ?Seeing that the heat was almost over, Chang Haonan stated his ultimate goal: I hope to use the Turbofan 9 project to verify some manufacturing technologies. Technical verification? ?This statement made Zhang Zhenhua look a little confused. Neither Qinling nor Kunlun can meet the needs of third-generation fighter jets, so the project to develop third-generation high-thrust turbofan engines must be put on the agenda as soon as possible. ?Chang Haonan stood up and paced slowly while giving an explanation. Not only for Zhang Zhenhua, but also for Zhong Shihong. We must admit that we lack too much technology in this area. With our current capabilities, it is difficult to complete even the design work, let alone the other parts behind it. "But if we have to wait until the preliminary design of the turbofan 10 is completed and we start to solve the manufacturing problems when we start manufacturing the engineering prototype, then the cycle is a bit too long, and the time spent focusing on the design is equivalent to a waste. Half of it. So I plan to synchronize these two processes, or nearly synchronize them. While improving the design plan, I will also verify and improve some new technologies that may be used in the production and improvement of turbofan 9. According to my thinking, the design of the Turbofan 9 should not change much compared to the Spey MK202, but as our manufacturing technology advances, it may gradually use precision-cast receivers and A series of new things such as fans and single-crystal turbine blades made of new materials. Of course, in the process, its performance will definitely be improved compared to the original version. Zhang Zhenhua understood. ?Zhong Shihong also understood. ?Chang Haonan is playing a big game. ?At the expense of slightly sacrificing the design finalization progress of Turbofan 9, we ensure that the more important Turbofan 10 will achieve higher research and development efficiency. ?If all goes well, the small batch production stage can even be entered immediately after the design is completed, greatly shortening the time required for production finalization. Verification of Turbofan 9 as Turbofan 10 Zhang Zhenhuas fingers tapped the table gently and rhythmically: Factory 430 provides supporting equipment to Factory 410. It doesnt sound good to talk about it, but it doesnt do any harm to us. Even if the design process needs to be modified frequently and the production finalization is delayed due to differences in the design process, it will still be much faster compared to the timetable of General Counsel Chang, compared with us working behind closed doors. ?These words are more like he is convincing himself and others in the 430 factory. I agree! (End of this chapter) Chapter 182 The future of JH-7 Chapter 182 The future of JH-7 ?After such a long preparation, it was almost natural for Zhang Zhenhua to agree to the suggestion made by Chang Haonan. In that case, lets start discussing some specific technical issues. ?Chang Haonan sat back in his seat again. Having experienced later generations, he knows very well that technology research and development is a two-way process. Although there is definitely a problem with the comprador mentality that buying is worse than renting, but on the other hand, users have invested money and decision-makers have taken the pressure. If the R&D unit is unable to let them receive positive feedback for a long time, then others will have no regard for independent research and development. It is normal to hesitate about something. So whether it is the 430 factory or Chang Haonan, who is preparing to take part in the 973 project, they have to quickly come up with something short, flat and fast. It does mean a bit eager for quick success, but this is the rule of doing projects. This is also the rationality of the trade, industry and technology route. First do business, achieve a certain amount of primitive accumulation, and survive, and then develop new technologies and products, sell them, and find new profit growth points. ??Its just that some people just focus on primitive accumulation while doing it, and forget all the work and skills behind it. But Chang Haonan is obviously not such a person: "Abrasive flow machining is just the beginning of the Seiko Plan, but grinding has always been our shortcoming, so I think this technology should be able to solve your immediate needs, and at least produce some results. First, we can solve the vortex Save this fan 9 project. "So, Director Zhang, can you tell us in detail about the various problems encountered in the localization process? We will analyze and analyze which of them can be solved in a relatively short period of time. We will focus on the key problems first, which can also be considered as a report to the higher-level departments, and The aviation unit has some confidence. As for those that cannot be dealt with immediately, we can make a list first. The same problems may also be encountered in future turbofan 10 projects. We will prioritize them in the order of easier and then harder, and regard them as the key research and development directions of the Seiko Plan. In addition to deep holes and thin tube workpieces, there are indeed many problems faced in processing. Zhang Zhenhuas complexion also relaxed slightly: "For example, the high-pressure turbine bearing of an engine uses a floating ring sealing device. When the bearing temperature rises during use, the oil remaining in the sealing ring will coke, causing the floating ring to get stuck, causing friction with the shaft body, and the sealing effect will decrease. Soon, the ground crew had to clean the structure almost after every flight, but the actual lifespan was still only about half of the expected, so the imported parts were consumed quickly. " "But the manufacturing process of this floating ring is very demanding. It took us almost two years to produce a qualified product, but now the production speed is also very low. The first batch of installed Sibei machines has just reached the intensive overhaul period, and the output It cant keep up with the consumption at all, and the troops are very dissatisfied. As he spoke, he pulled out one of the papers from the pile of documents he brought, pointed to an inconspicuous ring-shaped part on it and said: Thats it. "In addition, there is a locking piece at the root of the high-pressure rotor blade of the fan of Spey MK202. Its function is similar to the two pins on the R15 engine. It is used to fix it with the tongue and groove. This is also a consumable part that is in great demand in the army. We ourselves Because the roughness of the manufactured locking plate is not up to standard, it is easy to change the natural vibration frequency of the blade. When the blade is close to the maximum speed, resonance occurs and damages the engine. As a result, many pilots do not dare to push the throttle when flying the overhauled Flying Leopard... " I mentioned more than ten items in a row, all of which are problems that have troubled Factory 430 for a long time. Imitation, especially when there is a lack of technical data, actually has many unique troubles. Especially when it comes to materials and processing techniques. This is not even simply a matter of technical ability. Even in countries with a higher level of materials science, it is difficult to achieve a 1:1 restoration just by relying on the finished products in hand. The processing method is the same. ??The British only transferred technology and equipment, and did not send people to teach them step by step like Maozi did back then, so many areas that needed experience had to be explored bit by bit. Chang Haonan looked down at the pile of drawings spread out in front of him and quickly sorted out the priorities in his mind: "As for the floating rings, rotor lock plates and bearing **** you mentioned, they are all similar to the processing of pipelines and deep holes. Our new abrasive flow processing method can completely handle it, but it only needs to be replaced with new abrasive formulas and PLCs. Control procedures, you dont need to worry about this, you can send people to the 410 factory for further study. Zhang Zhenhua breathed a sigh of relief after hearing this answer. ??The problem that Chang Haonan said can be solved immediately is the most critical part. ?Dozens of JH-7s are in urgent need of wearing parts, and these aircraft are the absolute main force of the naval aviation force at the moment. ??Once a large-scale den is discovered, it will be a big deal that will break the sky. ?This is why the proposal to buy another batch of second-hand Spey MK202 will be considered by the above. ? Being able to meet the overhaul and maintenance needs of these aircraft now is a turnaround for Factory 430. ?However, he soon showed a worried look: "Chang Gong, if these parts are ground using your new process, the consumption of soft abrasives should be very large, right?" He still remembered the technical document he had seen before, which stated the use of abrasives. Life span ranges from 0.5-8 hours. ??When I watched the processing process on site during the day, it was true that waste abrasives continued to be discharged from the fixtures. Factory 410 even specially arranged a worker to replenish the consumed abrasives. Hmm...thats true. Chang Haonan naturally has no need to hide anything in this regard: The specific length of time it can be used depends on the material of the workpiece to be processed, but in short, it must be replaced frequently, otherwise the expected effect will not be achieved. Then the cost of this abrasive... Zhang Zhenhua stroked his hair a little embarrassedly: I see that there is silicon carbide in the abrasive formula. It seems to be quite valuable. I remember that our country still needs to import it. There is no way. The 430 factory is really tight in terms of money. The turbofan 9 has been unable to be manufactured for a long time, while the turbojet 8 is only equipped on the H-6, and its usage is very small. It was then that Chang Haonan understood what the other party was worried about: "Director Zhang doesn''t have to worry about this. The silicon carbide that needs to be imported is electronic-grade semiconductor silicon carbide. The abrasive we use is the most common silicon carbide for coatings and construction. It can be made domestically. The purchase price is per ton. Its less than a thousand dollars. Is that so? Zhang Zhenhua, suddenly enlightened, was completely relieved. But, Director Zhang. ?Chang Haonan picked up a pencil and lightly tapped on one of the drawings: I have some personal thoughts about Turbofan 9. Please tell me! Zhang Zhenhua immediately opened the notebook in front of him This is Chang Haonans personal opinion. This is the personal thought of the person who transformed the Turbojet 14. ?Got to take notes quickly! The 603 Research Institute should be developing a deeply improved version of the JH-7, right? ?This matter should not be a secret within the aviation industry, but Chang Haonan still used a question. Yes, the current JH-7 is mainly used by the navy. The air force has invested a lot of money because the combat concept is more complex, hoping to obtain an improved model with better performance. ? Zhang Zhenhua nodded. The connection between Factory 430 and Institute 603 was quite close. Moreover, they were also the suppliers that provided power to Feibao, so they naturally knew this: However, the 603 Institute hopes to use fully digital design for this project. There is a shortage of talents in this area, so the progress is not very fast. The speaker is unintentional and the listener is interested. ?Yao Mengna, who had been sitting in the corner without speaking, suddenly lit up as if she had thought of something. ?But no one noticed her thoughts at this time. Chang Haonan naturally knew what the JH-7A was about, so he continued almost without thinking: The Air Force has higher requirements for ultra-low-altitude penetration in complex terrain. Although the Flying Leopard is a twin-engine aircraft, when flying at ultra-low altitude, even if only one engine stops, it is still easy to cause irreparable accidents. In this case, why not take this opportunity to completely solve some of the problems you just mentioned, which can also be regarded as eliminating some hidden dangers in flight safety. ??Although generally speaking, SPEI MK202 has little potential for comprehensive optimization, we still cannot ignore a seemingly small defect that directly affects reliability and lifespan. ?Moreover, it is not troublesome to modify them, and they will not even affect the whole body. In the previous life, many JH-7 aircraft malfunctioned at ultra-low altitudes, and the performance of the second-generation ejection seats they equipped was poor, which ultimately led to multiple Category 1 flight accidents. Like the Yun-8 aircraft with ice on its wings, it is also one of the greatest surprises in the history of the aviation industry. The model of Turbofan 9 was originally gradually improved through accidents. (End of this chapter) Chapter 183 China does not agree to the acquisition Chapter 183 China does not agree to the acquisition The discussion, which was originally planned to be only about an hour, lasted until late at night. "The sealing device of the high-pressure turbine bearing can be changed from a floating ring type to a grate-tooth type. Although the theoretical sealing effect will be worse, it will not be affected by coking, and will not cause oil leakage due to friction with the bearing. risk." The method of fixing by tenon pieces is not very strong after all. You can consider designing a vibration damping block at the root of the blade to reduce vibration stress ?Chang Haonan combined the memories before rebirth, as well as the knowledge and experience after rebirth, and proposed many detailed modification plans for Sibei MK202. Zhang Zhenhua naturally recorded them one by one. Factory 430 was originally an enterprise mainly engaged in manufacturing, and the R&D department has always been in a dispensable state. It is only in recent years that it has begun to recruit people and build a team, which can be used to improve the turbofan 9 Gain some experience in the process. While the Seiko plan continues to advance in an orderly manner. Across the ocean, Washington, D.C. In an office in the Herbert Hoover Building, 1401 Constitution Avenue. ? Commerce Secretary Michael Kantor is sitting behind his desk, holding a several-page briefing in one hand and an unlit cigar in the other. He has read the contents of the briefing over and over three times. You two, I think your plan may encounter some unexpected resistance. ?? Kanter raised his head and looked at the two people sitting on the sofa in the reception area opposite. Harry Stonecipher, current CEO of McDonnell Douglas. ?Phil Condit, current CEO of Boeing. ?Two people stomping their feet together can make the global aviation manufacturing industry tremble. Unexpected? ?Stonecipher crossed his legs nonchalantly, obviously not caring too much about Kanter''s position: "Is there anyone in the two houses of Congress and the Pentagon who will raise objections? This matter is good for them." ? It seems to be heard from his tone that the CEO of McDonnell Douglas is not dissatisfied with the merger of his company, but is actually a little... Cant wait. In fact, Boeing''s merger with McDonnell Douglas can be said to be a decision jointly promoted by the two companies, or the management of both parties led by Condit and Stonecipher. In addition to unifying the aviation manufacturing industry in North America and enhancing competitive advantages, another important reason is that it can quickly increase the stock price. ?Just half a month after they announced the merger news, Boeing''s stock has soared by more than 10% despite no operations. McDonnell Douglas, or in other words, McDonnell Douglas''s executives, did not suffer. ?According to the agreement between the two companies, after the merger is completed, 1/3 of the board seats of the new company will be reserved for the management of the original McDonnell Douglas Company, and Stonecipher himself will serve as the general manager. In addition, when Condit retires in the future, he has a high probability of becoming Boeing''s next CEO. Both parties were very happy. ?Stonecipher, who personally benefited the most from it, is naturally dissatisfied when he suddenly learns that the merger process may be frustrated. Not from home, Harry. Kanter put down the documents in his hands, took out a cigar from the drawer, and patiently trimmed the cigar in front of him while saying: The European Commission has made it clear that it opposes the merger of your two companies. They believe that it will affect fair competition in the EU business aircraft market. "But it was part of the plan, nothing to be surprised about, Kanter." Condit cleared his throat and said: "As we have said before, the Pentagon and the Ministry of Justice will stand by our side and put pressure on the European Commission. In the worst case scenario, we can also use Delta Air Lines and Continental Airlines to We will make some concessions in terms of our exclusive supply rights. Anyway, after the merger, we will quickly abandon the McDonnell Douglas product line. ? Stonecipher, who was sitting next to him, didnt react much to the fact that his companys product line was abandoned. As a professional manager, he actually doesnt care about the company, as long as he maximizes his own interests. But now the Europeans have an extra ally. While speaking, Kanter burned the cigar with pine wood chips, put it in his mouth and took a deep breath. The Chinese people will stand with them. Although there is no official statement yet, in many informal situations, they have shown their determination in this regard and will govern this merger in accordance with the Anti-Unfair Competition Law. How is it possible? ? Stonecipher stood up suddenly: In recent years, we have invested in several consulting companies in China, specifically responsible for finding influential experts and asking them to provide research results that are in line with our interests. He had been preparing for this merger for a long time, and he did not expect such an unexpected event. Anyway, Harry, it happened. Kanter, who was smoking a cigar, also stood up, walked to Stonecipher, and patted him on the shoulder: We have to solve this problem. Condit, with a sinister look on his face, tapped the armrest of the sofa rhythmically with one hand: Although Chinas aviation industry is still very backward, the potential of the civil aviation market is very great. If they are tied to Europe, it will be equivalent to handing over this market to Airbus, which is absolutely unacceptable. As the CEO of Boeing, although he does not quite believe that the Chinese will really completely crowd out Boeing and let Airbus dominate, he must also consider that even if the other side of the ocean only shows such a tendency, it will be enough for investors to have an interest in Boeing. My confidence has hit rock bottom. The ensuing stock price plunge was absolutely unbearable for him. ?At this time, Stonecipher also calmed down a little. After thinking for a moment, he realized that the other party still left a lot of room for maneuver: Since the Chinese people have not chosen the same public stance as the EU, it means that things are still turning around. They are not really planning to stop us, they just want to get more benefits from this process. Those who can reach the position of CEO of McDonnell Douglas naturally have enough brains and can quickly find a reasonable direction of speculation: I dont mind talking to them to see what their conditions are. Anyway, with the level of their aviation industry, Im afraid they wont be able to threaten us before the end of the next century. But I mind. ??Kant turned around, walked to the glass window of the office, looked at the white house in the distance, and continued after a while: "Europeans are fine, but if we negotiate with the Chinese on this matter, it means that we recognize that China is a force on an equal footing with America, and it means that our business operations are subject to Chinese laws. Restriction means that we have to make concessions to a foreign country. No matter what the outcome is, as soon as the negotiations start, it means we lose. "What should we do? Should we put the merger on hold?" ?? Stonecipher is not to be outdone. As a businessman, he doesn''t care about these illusory things. "Of course that''s impossible." Kanter waved his hand to signal the other party to calm down. ? Boeing''s merger with McDonnell Douglas is a consensus reached by all major forces in the United States. It is impossible for him, as the Secretary of Commerce, to stop it. But you must be prepared for the lengthening of the front line. It may take half a year or more to resolve this matter. (End of this chapter) Chapter 184 alienation plan Chapter 184: Divorce plan It depends on the patience of both our boards of directors, but as long as it doesnt delay for too long, I think it shouldnt be a big problem. Stonecipher sat back on the sofa again and looked at the back of the figure standing in front of the window: "But you seem to have a plan. Are you planning to sanction them again?" He has no hostility toward China, and of course he has no favorable impressions. As long as the goal can be achieved, he will do anything. For the Ministry of Commerce, economic sanctions are obviously the most direct and convenient way. "Of course not. In your eyes, is this the only way we can do it?" ??Kant turned back to look at the two CEOs of large companies angrily and amusedly, and asked in a slightly exaggerated tone. The two did not answer directly, but it was not difficult to see from their eyes that this was what they thought. Ahem Kanter, who felt a little embarrassed, coughed several times to change the subject: "What Phil just said is right. China''s market potential is very large, not only in the aviation industry, but also in other industries. And unlike Europe and Japan, their products are almost no threat to us, and they can only export some Cheap labor, its a perfect market and we cant give it up. "The confidence of China and Europe to confront us on this matter lies in the strong complementarity between the two. China needs advanced aircraft produced by Airbus, and Airbus also needs to quickly occupy market share. Therefore, we have to do The purpose is not to exert direct pressure, but to undermine the relationship between China and Europe. Actually, Kanter has another reason that he didnt mention. That is, since mid-1996, the White House began to gradually change its attitude towards China''s accession to the WTO, from the previous strong obstruction to conditional support. On the one hand, this is because major American companies, especially the emerging high-tech companies behind the Donkey Party that have developed with the Internet boom, hope to get a share of the rapidly developing Chinese economy. There have been several scandals in recent years, such as the Whitewater Incident. The president himself hopes to make China''s entry into the WTO an important political achievement in his second term. Kanter is keenly aware of this trend, so he is unwilling to have too large a conflict with the other party in the commercial field. But Michael, since the end of the Cold War, Europe has lost the threat from the other side of the Iron Curtain and has become less obedient, especially their businesses that relied on our assistance to recover. Condit''s tone was a little dissatisfied. After all, without the Marshall Plan, Europe would still be in ruins until now. Where would there be so many rivals that could compete with him: We can see the potential of the Chinese market, and Europeans can naturally see it too. If you want to drive a wedge between them, it may not be that easy. "Of course we can''t expect to start from the commercial level. Those European companies are probably dreaming that this matter will make a bigger fuss." Kanter, who sat back on the office chair, shook his head and put out the half-burned cigar: But thanks to the existence of NATO, we have some more direct ways to influence them. Can the Pentagon agree to repeat what happened at the beginning of last year? ?? Stonecipher showed an expression of disbelief. Although China undoubtedly suffered a loss in that incident, the United States was actually under great pressure and it was simply unfeasible to do it again in a short period of time. Why us? ??Kante showed a somewhat playful smile: The year is 1997, Harry, and its been a very interesting year. "Although European companies no longer care about this, I think there must be some London aristocrats who are still living in the dream of an empire where the sun never sets, and want to do something at this point in time to satisfy their ridiculous of self-esteem. ?It took the other two people a few seconds to realize what Kanter was talking about: "That''s it? No other actions?" ????Obviously, they are not very optimistic about this plan. As long as the Chinese people can suffer a humiliating loss, thats enough. ? Kanter looked confident: "You are not the only ones who have arranged consulting companies and foundations in China. We also have them, and the Pentagon also has them. At that time, we can arrange some experts with sufficient weight to focus on inciting their national sentiment through the media and set off a wave of anti-British and anti-European sentiments. , at this time, you can ask those who have benefited from you to propose reducing cooperation with Airbus. They had no choice. A set of serial schemes made Stonecipher and Condit fall into deep thought at the same time. ?This plan is to trick others into taking advantage of the fire, and at least there is no risk to them. ??If it succeeds, it will be equivalent to weakening the bargaining chips of both Europe and China at the same time. Even if it does not succeed, it will be nothing more than a waste of a few months at most, and then we can consider negotiations. The merger and acquisition process of two very large companies is originally calculated in years, and this time can still be delayed. But there is another point that worries them. That sounds reasonable, but Michael, theres a question that Im wondering if youve ever thought about. ?Condit showed a somewhat strange expression: Fifteen years ago, the British were almost defeated by the Argentines in the South Atlantic. Are you sure they still have enough strength to threaten the Chinese? All your assumptions are based on the fact that the Chinese people will suffer, but if it is the British who are embarrassed in the end, I dont think the EU will suspend cooperation with China because of this. Stonecipher, sitting on the adjacent sofa, also agreed: "Not to mention the EU, even British companies will probably not be affected. Companies such as Rolls-Royce, Marconi, Unilever and Rio Tinto have grown very rapidly in China in recent years. Their business in China has grown very rapidly. I wont lose the opportunity to make money just because of this. No, no, no, you misunderstood what I meant. ??Kante waved his hand and then explained: I dont want the British to start a war like they did back then. What I want is a successful provocation that can become a trigger to destroy the relationship between them. That is enough. For example? For example, in the South China Sea, where the Chinese navy and air force cannot reach, we conducted several exercises with neighboring countries. The huge office fell into silence. The two CEOs looked at each other and exchanged their opinions in a low voice. Well, your plan is worth a try. But the patience of the board of directors and investors will not be unlimited. If we cannot see persuasive changes within half a year, then we will consider solving the problem through negotiations. (End of this chapter) Chapter 185 Batch 00 J-8C, delivered to the troops Chapter 185 Batch 00 J-8C, delivered to the troops On the other side, after removing the remelting layer on the inner wall of the air film hole and solving the biggest hidden danger of unstable turbine blade operation, the two models of turbojet 14 have finally successfully entered the mass production stage. ? Similar to Chang Haonans previous speculation, after the replacement of newly produced engines, the problem that the inner pylon cannot launch the PL8 and PL11 air-to-air missiles in a guide rail manner has also been solved. The J-8Cs of batch 00 were also delivered to the troops for trial in the first week of 1997 before the official start of aviation training. For a new model, it cannot be considered a success at this time. It is a bit like the tasting process when buying fruits at the market. Only after the user is satisfied will the actual batch order be placed. ??If we leave it to Western countries, at this stage, we can already beat gongs and drums to promote it. ??Anyway, people and investors can''t figure out the difference between the stages of delivery, service, and formation of combat effectiveness. It looks awesome and can make the stock price rise. However, here in China, on the one hand, our tradition is still relatively low-key. On the other hand, we have to admit that in the past few decades, there are generally more problems discovered during the military trial process, and there is even a lot of rework and even redesign. . Although after entering the 1990s, with the continuous improvement of technology and management level, the vicious quality problems or design defects that would lead to the return of troops have gradually decreased, both parties A and B will still tacitly avoid opening champagne at halftime. After all, China''s military industry system has no pressure on stock prices, so it is not too late to celebrate when it is officially put into service. So for this actually significant delivery, in the end, only a small celebration ceremony was held at the entrance of the final assembly workshop of Factory 112. ?Of course, no matter how small the scale, Chang Haonan must be among those invited. The J-8C has been able to reach this point so quickly and smoothly, not entirely, but at least largely due to its incredible work efficiency in the past six months or so. Without such a person present, no one else would dare to use their chopsticks. ?Amid the cheers of the crowd, a brand-new fighter jet with a big red flower hanging on its nose was pulled out of the assembly workshop. Followed by the second and third planes... Before his rebirth, Chang Haonan complained countless times that this decoration was really rubbish. Its just that when he actually stood at the scene, he unexpectedly found it a bit pleasing to the eye. ?This kind of day should be a little more festive. A total of 6 J-8Cs were quickly arranged in a semicircle around the delivery site. He Gong, I remember that I said before that only 4 aircraft would be delivered this time. Why are there two more aircraft? Chang Haonan applauded and turned his head to ask He Ming, the deputy chief engineer of the 112 Factory next to him. The two had met once before and chatted about many details about the introduction of the No. 11 Project technology. ? During this period, he has been immersed in the study of soft abrasives and has not paid much attention to the final assembly of the aircraft. There are two more that were delivered to the naval aviation force and were assigned to production tasks last month. I estimate that the J-8C may be equipped with both the navy and the air force this time. After He Ming''s reminder, Chang Haonan noticed that the two planes furthest away from him were painted differently from the other four, and there were several Party A representatives who were entering the venue wearing navy blue double-breasted jackets. Navy winter dress. HNA can actually spend so much money? Its not that Chang Haonan looks down on naval aviation. You must know that 1997 was the lowest point in the ratio of military expenditure to GDP since the founding of the Peoples Republic of China. The total was less than 82 billion yuan, and even less was allocated to each service. ?Especially for the Navy, which burns the most money, and buying a ship often costs ten figures. It is not enough, and one penny can be broken into two halves. The shore-based naval aviation is originally in a relatively embarrassing position. In terms of actual functions, it is not much different from its counterparts in the air force. The greatest value is to retain the establishment and leave a thought for the aircraft carrier dream that seems to be relatively illusory at present. Therefore, What''s more, my grandma doesn''t love me and my uncle doesn''t love me. In most cases, I can only equip some older models. ?Like this, new aircraft can be used directly after delivery. Except for the JH-7 specially prepared for them, it has basically never happened again. It may also be affected by what happened at the beginning of last year. The army has a strong demand for new aircraft. He Ming speculated: "In addition, the J-8C is, after all, a model completely designed and manufactured by us. It can be compatible with the logistics, maintenance and training systems of older models to a certain extent. Both pilots and ground staff can switch over quickly, and its combat effectiveness is better than that of traditional second-generation aircraft. Its a lot better. Although the aircraft itself is a bit more expensive, the subsequent use cost is actually not high. After the speech at the ceremony, Chang Haonan met Liang Zhuoping again. The last time the two met, it was in the small conference room of Beijing Hang University. In order to determine whether Chang Haonan is eligible to join the 83rd Project. ?That was the first time in his two lifetimes that he faced the head of the aviation industry system alone. To say that I was not nervous at all at that time would be absolutely false. ?But now, the situation is completely different. On the one hand, Chang Haonan has completely proven his ability in the 83rd Project. ?On the other hand... Ding Gaoheng from the Science and Technology Commission is so taller than you that I dont know where he is. I chatted and laughed with him... Ahem In short, in the past six months or so, Chang Haonan has transformed not only his ability, but also his mentality. Comrade Xiao Chang, thank you for your hard work. ?Liang Zhuoping shook Chang Haonan''s hand tightly: Honestly, when I approved you to join the Eighth-Third Project last year, I never thought you could play such a big role. Considering your contribution to the design of multiple models during this period, as well as your contribution to the overall development of my countrys aviation industry, the head office has decided to make an exception and award you an award! ?When Du Yishan mentioned the name Chang Haonan for the first time, he said that after he graduates with his Ph.D., Liang Zhuoping may not be able to hire him. At that time, the latter didn''t quite believe it, and just regarded it as the other party''s compliment to his student. ?However, now it seems that there is no flattery, and it is obviously a lot more modest - ?According to this situation, there is no need to wait until you graduate with a PhD. After graduating from a bachelor''s degree, various systems under the Science and Technology Commission will compete to grab people... Liang Zhuoping has heard that Shipbuilding Industry Corporation and Aerospace Corporation are considering long-term cooperation with Beijing Hang University. Although generally speaking, the party A who contributes money in a cooperative relationship is the father, this cannot be generalized. ?If Party B like Chang Haonan is willing to do one more project for you in the future, it will bring great benefits. Just like the J-8C, MA-60 and Yun-8J. ?So Liang Zhuoping will never let go easily. Fortunately, he was on a first-come-first-served basis. Although the other party was not an employee of the aviation industry system and could not participate in the assessment and evaluation according to the normal process, he was still working on projects in the aviation industry after all, so he was determined to seize the opportunity at the end of the year. Get a hand. ?But now Chang Haonan can treat this kind of thing calmly. After all, its just a commendation. So I just thanked him very warmly on the surface. This scene happened to be seen by Yang Fenghao who was following not far away. He felt that Liang Zhuoping was a bit stingy in handling this matter. (End of this chapter) Chapter 186 naval aviation Chapter 186 Naval Aviation ?After a brief exchange of greetings with Liang Zhuoping, Chang Haonan found an excuse to get away and went to chat with representatives of the navy and air force respectively. You want to talk together? That is obviously impossible. Although it is an extremely rare exception like in this book that the army and navy have to differ in the direction of tightening the screws, but as the saying goes, there is no first in literature and no second in military affairs. In places like the army, there will always be competition. Therefore, there will be a bit of tension between colleagues in different military services. This is true for special warfare, aviation, and even the cooking squad. ??The air force''s pick-up unit is the Third Regiment of the First Aviation Division. ??This unit was equipped with J-8E in the past, and it is stationed close to Shengjing. It is not surprising that it was selected as a trial unit for the 00th batch of new aircraft. The pilot leading the team is named Zheng Liangqun. He had actually served as the deputy division commander of the 1st Division two years ago. This time he returned to the old unit to serve as the commander-in-chief of the entire replacement task specifically for this batch of new aircraft. The navy''s pick-up unit still surprised Chang Haonan. The 25th Regiment of the 9th HNA Division. When Chang Haonan heard this number, he was stunned for a moment. It turned out to be you. almost came out of the mouth. ?However, his subconscious words obviously caused some ambiguity: ??The two pilots responsible for picking up the plane looked at each other awkwardly: Comrade designers, please rest assured, we promise to maintain the aircraft at all costs! "Well" ?This reaction made Chang Haonan feel confused for a moment. ?But then he reacted. Just a few months ago, during a joint training exercise between this unit and another brother unit, two J-8Bs collided and crashed due to weather conditions. ?The other person probably thought he was talking about this just now. ?This misunderstanding naturally needs to be explained, but the real reason cannot be told ?That thing hasnt happened yet. Furthermore, Chang Haonan would not let it happen. Finally, it took him half a second to find another reasonable explanation: I believe that the pilots will care for the aircraft as much as they care for their own lives, but I didnt expect that your division farthest from Shengjing would come to pick it up. The 25th Regiment is stationed at Qiongzhou Lingshui Airport. Not only is the environment high in salt and humidity harsh, but the distance from the manufacturing plant is almost the furthest in the country. During the trial process of new aircraft models, the troops will need technical support from manufacturers to some extent, and it may also involve the transportation of some urgent spare parts. However, the transportation and logistics of this era are far less developed than later generations, so even if it is not entirely based on the principle of proximity, it is generally not applicable. Will select units that are too far apart. ?These words really made the two pilots relax again: There is no other way. Our regiment is the best at flying J-8s among the naval aviation, and there is an urgent need for aircraft with longer range in the South China Sea. Are you more concerned about the range of this plane? ?Chang Haonan was a little surprised. In fact, thanks to the redesigned turbojet 14A engine with lower fuel consumption and the addition of more than 100 kilograms of fuel for trimming, the J-8C in the final design state can reach 3,000 with three auxiliary fuel tanks. The maximum range is about kilometers. Although this number is still far from the 4,000 kilometers of the Su-27SK, the J-8C also has the ability to receive refueling in the air that the latter does not have. After a single in-flight refueling, the range can be extended to the same 4,000 kilometers. For China Aviation Industry, which has only produced short-legged aircraft in the past, this is actually a huge progress. It''s just that the PLA''s current aerial refueling capability can only be said to have solved the problem. The H-6 can''t even feed a J-8C at a slightly farther distance, and it has no experience in establishing an aerial refueling area. So in terms of range, The advantages are overshadowed by huge improvements in flight performance and airborne weapons systems. ? ? Several Air Force pilots just mentioned more about the amazing flight performance at the Zhuhai Air Show and the over-the-horizon combat capabilities of the new radar, officially named 1472, when paired with the Thunderbolt 11. "Of course, our main opponent is the Su-22M3 equipped by Annan. This kind of aircraft has average air combat performance, but their airport is closer. Many times we fly over and have to return after a short time. Comrades of the Surface Ship Force They have complained to us many times and they need strong air support to back them up." Thats it. Chang Haonan nodded clearly. As far as the situation in the South China Sea is concerned, it is difficult to solve the problem just by increasing the range of the aircraft stationed at Lingshui Airport. Even if it is equipped with the Su-27/30 or the future J-11, it will be difficult to cover the entire sea area, and long-term flights are difficult for the aircraft. Its also a challenge in terms of the pilots energy and stamina. ??It is still necessary to build island airports closer to the front, or carrier-based fixed-wing aviation on aircraft carriers. So he quickly changed the subject: Aside from range and flight performance? Are there any other issues that you think need to be resolved as soon as possible? As a party, collecting feedback is an important part. Most of the time, users dont actually know what they want, but they know what they dont want. "Um" ?One of the younger pilots hesitated for a moment, but finally answered: I thought maybe a new two-seater aircraft was needed. We have many pilots who have never experienced supersonic flight before entering the combat force, and the J-8 is a single-seat aircraft, so many things can only be taught on the ground and explored by oneself The JJ-7 was only officially equipped with troops in 1994, and the output was not large, so it has not yet been rolled out in the pilot training process. On the other hand, Chang Haonan, who has experienced flying in a JJ-7, also knows that it is definitely not an excellent training aircraft. The instructor in the back seat has almost no forward vision. The subsonic flight performance is very poor and the supersonic flight range is short. They often land after not training many items. Moreover, the airborne weapon system is also behind the times and cannot carry out complex air battles. train There is also the bomb load, or the pylon. Another pilot also jumped in: Seven pylons are too few, even Annans Su-22 has eight, and the space under the wings of the aircraft is very small, and even larger weapons cannot be hung..." In short, Chang Haonan gained a lot from this day. First-hand feedback from pilots represents the most real pain points. ?These problems are definitely impossible to modify on the J-8C that has been designed and finalized, but they can be used as the focus of future work. ?In addition, after the handover ceremony, his work at Institute 601 will come to an end. ??, it is almost a month away from the Lunar New Year in early February. Although the school is on holiday, Chang Haonan does not plan to go home so early. It just so happens that Factory 410 has also shipped the two turbojet 14B machines needed for the J-7F prototype to Factory 132. So after thinking about it, he decided to get on a United Airlines Tu-154 and head to Chengdu, ready to see what else he could do during the period before the year. (End of this chapter) Chapter 187 J-7, super evolved! (2-in-1) Chapter 187 J-7, super evolution! (2-in-1) On the plane, Chang Haonan, who finally had some free time, covered himself with a blanket and took a glass of juice from the flight attendant in military uniform. ?Yao Mengna went back to school directly and did not go to Chengdu with her Since it is a project, desk work such as year-end summary must be indispensable. With his current status, he definitely doesnt have to do these tasks himself. I can only do some hard work for Senior Sister. So Chang Haonan, who had nothing to do, was ready to summarize what he had gained during this period. Because of the smooth development of the Seiko Plan and the putting into use of abrasive flow processing equipment, Factory 112 and 601 were able to legitimately use a sum of 60,000 yuan from the project funds as a commission and reward him personally. ?In addition, before leaving, Yang Fenghata came to him specifically and said that the awards given by the head office were not enough to convince the public, and that he would continue to apply for honors in line with the latter''s contributions. ??Although Chang Haonan will not change his plans because of these external things, he has to admit that Yang Fenghao is obviously good at winning people''s hearts. After the August 3rd Project achieved phased results, the 112th Factory and the 601st Institute in Shengjing were not only engaged in Project 11th, a major project involving at least 3-4 sub-models, but they were also working on a stealth flying-wing drone. Human and machine conduct technical pre-research. This is a self-funded project. Compared with the J-7F, the funds are certainly much more generous, but considering its rather ambitious goals, it is not difficult to predict that it will face many difficulties. ??And if we can get the help of strong foreign aid, the progress of these two projects will obviously be accelerated a lot. Apart from material rewards and the trivial commendation, for Chang Haonan, what is more important is the system. ?Perhaps because the Seiko Project created too much noise, this time he directly received up to 125 scientific research points, as well as a large amount of experience points, especially in management: Research Points: 500 Theoretical level: LV2 (3500/10000) Engineering experience: LV2 (1000/10000) Management ability: LV2 (0/10000) Comprehensive ability: LV2 Projects in progress: 0 Projects that can be carried out: 2 After the theory, engineering and management levels are all upgraded to level 2, the comprehensive capability assessment of the system is also upgraded by one level. The obvious benefit is that now two projects can be carried out simultaneously. But Chang Haonan still remembers that when he was just reborn, he once thought with some mischievous thoughts about letting the system help design a J-20. The response received at the time was [the level of capability is insufficient and there are no available ideas for the project] In other words, in order to carry out a project, in addition to having a closed-loop and feasible idea, there are also requirements for the level of the system. Its just that his research has always been more down-to-earth, so he never saw the same prompt again. But as he gradually begins to get exposed to more advanced research content represented by third-generation aircraft, the improvement of comprehensive capabilities will obviously bring many benefits. A few hours later, Tu-154 landed on the runway of Chengdu Shuangliu Airport. Chang Haonan naturally has feelings for Sichuan Province, where he lived and worked for more than ten years before his rebirth. But he has actually not been to Rongcheng that much. Instead, he has been to mountain cities that have not yet been upgraded to municipalities. Fortunately, the 611 Institute directly sent Lu Yuying to pick him up at the airport. ??When Chang Haonan was led by the other party and saw the car that looked almost identical to the BJ212 Jeep, except that the tail was slightly longer, he couldn''t help but sigh that there might be some kind of tacit understanding within the aviation industry system. Unexpectedly, after hearing his thoughts, Lu Yuying smiled and waved his hands: Comrade Xiao Chang, you may have made a mistake this time. This is not a BJ212. "oh?" ?Chang Haonans understanding of cars basically stops at a few well-known brands. But after all, the road to the 611 Institute is not close, so he really needs some topics to kill time, and it is not difficult to guess from the other party''s tone that this car may have come from a third-tier factory in the past. It was a period that he had never experienced but was quite interesting. I am interested in history, so I dont mind hearing an introduction related to it. ?Lu Yuying patted the bridge in front of her, turned back and explained to Chang Haonan: "This car is called JC121A. It is produced locally in our Sichuan Province. It is called Yema Bailu. It is a replica of BJ121. Many official cars in the province are of this model, or the better JC212." Local production...is it your 611 factory or 132 factory..." ?Chang Haonan tightened the coat wrapped around him as he spoke. ??This car, which looks to be quite old, is leaky when running. It has no heating equipment, so it can only rely on people to resist the humidity and coldness in the winter in Sichuan. ??He was of course used to this kind of climate in his previous life, but this was the first time his body had spent the winter in the Yangtze River Basin, and he was still not used to it. Thats not the case. ?Seeing him like this, Lu Yuying took out a pair of gloves from nowhere and handed them over, motioning to Chang Haonan to put them on: The Yema Bailu was led by the Chengdu Auto Repair Factory and worked together with four automobile manufacturing and maintenance companies. However, Factory 132 produced some parts for them in the most difficult years. "Before the 1990s, the development momentum of light vehicle factories has always been good. Unfortunately, in recent years, good foreign cars have continued to come in, and joint ventures have been established to produce them. The prices have also become lower and lower. It has been difficult to sell such low-end brands. For Chang Haonan, this kind of thing is not new. After all, similar plots will continue to be played out in the next ten years. ?Furthermore, judging from his experience along the way, the quality of this Mustang and Egret car is indeed unflattering. For areas that do not directly affect national security, some things should be let go. China''s automobile industry must develop, but Chang Haonan''s own energy is limited and he cannot do everything himself. He can only rely on channels such as the Seiko Plan to spread the technological achievements of cutting-edge projects faster. As for who can take advantage of this wave of technological dividends, it all depends on their own efforts and luck. After all, the fate of a factory must not only consider its own struggles... Chang Haonan and Lu Yuying chatted about various things about this car, Chengdu, and the aviation industry, and finally arrived at the 611 Institute before the sun went down. "Now the comrades in charge of Project No. 10 are following the final assembly of Prototype No. 01 in Factory 132. The place is a little deserted, but our J-7F project team is here, and we have arranged a simple reception for you, Comrade Xiao Chang. ceremony." Perhaps he was worried about being rejected, so the latter continued: In addition to our 611th Institute and 132nd Factory, there are other fraternal units involved in the project, especially comrades from several factories on the Zhucheng side. They all came here specially. "I also want to meet the comrades who built the city. It''s not easy for them." Chang Haonan nodded slightly: But I still want to go to my residence first and pack my luggage. If you just look at the map, Zhucheng does not seem to be much more remote than Chengdu. However, due to a series of factors such as history and topography, the economic level of the former is much lower. The 648 and Guizhou are both products of third-tier construction. Fei (the merger of 130 Yunma Factory and 162 Shuangyang Factory) naturally has less satisfactory development than its brother units. At present, we can only rely on the JJ-7 model to maintain the production line and research and development capabilities without interruption. ?Hence, when Lu Yuying proposed the export-oriented J-7 improved plan, the city builders chose to join in almost without hesitation. Considering that most of the future production capacity of Factory 132 will probably be placed on the production of J-10, Guifei Factory has a good chance of getting the production task of the new J-7 model, and Institute 648 can also use this project to train its team. ?In this most difficult moment for the military industry, only by finding a way to survive can we persevere until the day of dawn comes. No problem, Ill take you there right away. The conditions are definitely no worse than those at 601. ?Lu Yuying patted Chang Haonan on the shoulder, and then motioned to the driver to drive towards a side road. The dinner was held in the guest house of 611. The scale is not large, at least not as much as after the successful test launch of Thunderbolt 11. After all, it was a celebration. Not surprisingly, not long after the banquet started, after Lu Yuying introduced Chang Haonan to everyone, the topic gradually turned to aircraft design. Comrade Chang, we saw the turbojet 14B engine just shipped from Shengjing yesterday. Can you tell us about the difference between it and the old model in terms of inlet matching? The person who spoke was an engineer from Liyang Factory. He had met Chang Haonan before when he was doing high-altitude platform testing at 624. As one of the participants and investors in the research and development of the J-7F, Liyang originally hoped to use its own turbojet 13FII engine as power. But after seeing the turbojet 14 ground test with their own eyes, they immediately realized that it was a new model that could make a leap in aircraft performance. ??However, recognizing the reality clearly is a matter of recognizing the reality clearly, and there is still a point of being unwilling to do so. Mainly in the transonic range, the overflow resistance of the inlet. ?Chang Haonan put down the cup in his hand and explained to the other party: In order to improve the overall performance of the engine, the final turbojet 14 engine has a boost ratio of 18.6, which is basically between a typical turbojet of less than 15 and a typical turbofan engine of greater than 20. "Since the main installation target of the turbojet 14 was initially determined to be the J-8C with a high-altitude and high-speed orientation, the jet velocity was increased by increasing the temperature in front of the turbine and redesigning the afterburner to maintain its operating condition of more than twice the speed of sound. The performance is at the cost of using a lot of new materials, but the lifespan is almost no improvement compared to the old model. "However, the designed maximum speed of the J-7F aircraft is only about Mach 2.1. It is assumed that under combat conditions, the speed is mostly in the subsonic to transonic range. An excessively high jet speed is meaningless for our model, so I When designing the turbojet 14B, 606 was specifically required to reduce the temperature in front of the turbine and the jet velocity in exchange for longer life, higher reliability and lower fuel consumption. "But there was a problem. The original inlet was designed by me based on the flow characteristics of the turbojet 13F engine. It was too big for the turbojet 14B. The air flow captured by the inlet lip was even larger than The sum of the flow rate and the exhaust volume required by the engine will push out the positive shock wave at the lip, causing the intake duct to work in a subcritical state for a long time, resulting in a large overflow resistance. " I dont know if I explained it clearly? ?His explanation was concise and concise. In just a few sentences, he explained the parts that need to be optimized in the next step of the J-7F. In fact, it is not impossible for 611 Institute to complete this work alone, but it requires a little exploration of the appropriate starting point and matching sweet spot, which is far less efficient than Chang Haonan who understands the air intake characteristics of the aircraft and engine at the same time. ??After all, we still have to rush to the first flight node. ??The engineer who just asked the question didn''t originally want to embarrass Chang Haonan, so he simply nodded, then raised his cup and gestured to Chang Haonan. In this case, Comrade Chang Another young engineer from the 611 Institute spoke up. Just call me a regular worker. Among people of the same generation, Chang Haonan is still more accustomed to this title. Okay, then Chang Gong, since the key to the inability to match the old intake duct and the engine is that the intake air flow is too large, can we directly design a few bleed holes to increase the bleed volume of the intake duct? No, of course not. After hearing this question, Chang Haonan shook his head solemnly, then looked around and found a blackboard in the corner of the scene. He walked straight over, picked up the chalk and drew an abstract entry on it. Airway diagram. The reason why he paid so much attention to it was because he remembered that his previous research on the mandibular air inlet suffered a lot of setbacks in this place. "In the subsonic state, there is no problem with the method you just said, but in the transonic range, the normal shock wave of the inlet wave system is located outside the inlet lip, between the free flow tube boundary and the wedge plate surface , cant reach the vent hole at all. It would not be a big problem if it were an adjustable air inlet like the J-8C, but the shape of the air inlet of the J-7F is fixed and there is no way to adjust it according to different speeds. The entire air intake structure design must be optimized. ?Chang Haonan put down the chalk and turned around. What he saw was a group of people either bowing their heads in deep thought or looking suddenly enlightened. By the end of the banquet, it had already begun to look like a technical seminar. In order to make the atmosphere less bad, Chang Haonan put on a more relaxed expression and tone: Besides, dont you think the previous design was a bit too ugly? Its like...a toad with a big mouth. After switching to the new design scheme, although the overall appearance is still the same,... at least the mouth is not as big as it is now, and it needs to be coordinated a lot. ?This description immediately enlivened the atmosphere at the scene, and some people laughed involuntarily after hearing it. In fact, the design of the mandibular air inlet is indeed inferior in aesthetics, but the J-7F and the US military''s F8 and A7 are all fine. ??The real breakthrough in aesthetics is the X32 fighter jet, which has not yet been released, which is a technology demonstrator launched by Boeing to bid for the JSF project. ??The toad''s mouth is also used to describe this model. The X32 ultimately lost to Lockheed Martin''s X35. One of the very important factors was that pilots from the three services expressed their unwillingness to fly such an ugly aircraft into the sky, which would affect morale too much. ??Lu Yuying also raised his wine glass very appropriately at this time: Then I wish our new model can evolve successfully with the help of Comrade Chang Haonan! Evolution successful! Everyone present echoed in agreement. (End of this chapter) Chapter 188 MiG-21 modification that even mom can’t recognize (2-in-1) Chapter 188 MiG-21 modification that even mom cant recognize (two-in-one) Since I had to work the next day, the reception banquet did not last until too late, and I drank very restrainedly. ?Most people still maintained a very clear consciousness after the show, such as Sun Huizhong, deputy chief designer of 648 Institute, who flew from Zhucheng to Chengcheng just yesterday afternoon. ??He didn''t speak the whole time, just quietly listening to Chang Haonan''s explanations to other people''s questions. ??Although he had heard about this young genius from many channels, Sun Huizhong felt that he had to see it with his own eyes. So now, the only chief engineer of the 648 Institute only has admiration in his heart. Permanent worker! After leaving the guest house, Sun Huizhong called Chang Haonan from behind and followed him quickly: ?Chang Haonan turned around and saw a man with half-white hair standing behind him. Excuse me, are you... ?Although it sounds like he has done a lot, it has only been half a year since he traveled across time, and he didnt have time to interact with too many people. As an ordinary military engineer in his previous life, he also had limited connections, so except for a few well-known big names, most of the faces were unfamiliar. Sun Huizhong, who came from Building the City in 648. The two shook hands under the dim street lamp. ?After taking a closer look, Chang Haonan discovered that the other person did not seem to be particularly old. He was probably in his early thirties. The reason why he grew old early was probably due to congenital reasons or too much pressure. Chang Gong, I would like to ask some more questions related to hair matching. After all, it was already very late, and Sun Huizhong was staying in the guest house, which was not in the same direction as the dormitory area, so he didn''t make any detours and directly explained his purpose. ?Chang Haonan would naturally not refuse this kind of thing: Please speak. We want to develop a two-seat aircraft based on the J-7F. Sun Huizhong does not shy away from the idea of ??borrowing ideas from brother units. After all, the design team of Institute 648 has only three digits in total, and its experience and level are indescribable. In this case, there is no shame in choosing to copy assignments: "But I heard from comrades here in Rongcheng that the J-7F''s air inlet and front fuselage are integrated designs completed by you. Modifications to the fuselage will seriously affect the air intake efficiency, so I would like to ask, what do you think? How feasible is this plan? "It is indeed the case. The high air intake efficiency and stability of the J-7F are based on the primary compression of the incoming flow by the nose part. If you want to convert it to a two-seater, you will inevitably have to perform some modifications to the front fuselage. A major change would almost require a complete redesign. ?Converting a single-seater to a two-seater may seem simple, but the operation requires a lot of work. For some relatively small aircraft, one more pilot will have a significant impact, and the more sophisticated the aircraft''s aerodynamic design, the smaller the operating space left for such changes. The J-7F has occupied both sides, which is particularly troublesome. So Chang Haonan thought about it for a while and quickly gave his opinion, even though it was a basin of cold water: "When I designed this model, I just wanted to give the J-7 a true beyond-visual-range combat capability. I didn''t think about letting it take on more complex functions, so I didn''t leave much margin. If it were changed to a two-seater I personally dont like it. ?At that time, he had just traveled through time, and he just wanted to quickly create a short and fast project to attract the teacher''s attention, so that he could quickly participate in a specific model project. In fact, Chang Haonan still hasn''t figured out how he crossed the level of Professor Liu Hongbo and directly attracted Du Yishan''s attention. In short, the final effect was much better than expected. So thats it ?Sun Huizhong, who was standing opposite, lowered his head slightly and showed a somewhat regretful expression: "We originally planned to further improve the J-7, and are currently doing pre-research work on wing selection and air inlet matching. After coming into contact with the J-7F project, we originally thought we could have a better reference. Unfortunately, When the other party said this, Chang Haonan suddenly remembered the conversation he had with the two pilots of the 25th Hainan Airlines Regiment at the J-8C delivery ceremony. They said that the army currently lacks a useful high-level training aircraft. To solve this problem, designing a new advanced trainer aircraft from scratch is of course the best way, but currently there is no such solution in terms of funding or technology. If nothing else, we cant get two small-thrust or one medium-thrust turbofan engines. ?Besides, there are not that many abundant funds at the moment. ??However, it is still feasible to use the redundant digital fly-by-wire technology of the J-8IIACT, combined with the medium-thrust, excellent-performance turbojet 14, to develop a model based on the J-7. The final product of this idea in later generations was Coach 9, which happened to be the product of 648 Institute. Chang Haonan is fully capable of making it born in advance, and... Become more perfect! So he changed the topic and said to Sun Huizhong, who was already preparing to say goodbye: Since you have such an idea, you might as well be bolder. Hearing this sentence, the latter''s eyes suddenly lit up, and he raised his head and looked at Chang Haonan: You also think we need a new advanced trainer aircraft? ??Although the plan based on the J-7F technology has been rejected, Sun Huizhong is very happy to get approval for the idea of ????this training aircraft. You must know that the conversion rate of pre-research results is actually very low. Sometimes out of 10 pre-research plans, only two or three will eventually become formal projects that can be carried out, and even fewer may achieve positive results in the end. The two pre-research reports they submitted previously were rejected due to lack of depth. Therefore, Institute 648 also has internal concerns about the plan for this new advanced trainer aircraft ? ? Bite the bullet and continue will require more investment, and no one dares to guarantee that the army will definitely want it. This is a risk for them with small families and small businesses. ? Even Sun Huizhong, who originally proposed the idea, didnt have much confidence. You must know that although he holds the title of deputy chief designer of the 648 Institute, this is entirely because there is really no talent in the institute, so he is replaced by a person who is less than 30 years old and has not led any model design. You are young and have no successful experience, so you will naturally lack confidence. So when he heard Chang Haonan express his support, Sun Huizhong was quite excited. Although the former is younger, judging from what happened at the dinner just now, he definitely has real talent and knowledge, and he played a very important role in the 83rd Project. His stance is definitely weighty. Of course, JJ7 was created by you, and you should be very aware of the flaws. ?Chang Haonan nodded, not showing any mercy because the person in front of him came from No. 648: "The low-speed performance and rear-seat visibility are so poor that instructors even need to make their own periscopes to observe the situation ahead during takeoff and landing, and the potential is not enough. It is barely enough to train J-7 and old J-8 pilots, but our Air Force is making great strides." Its entering the third-generation machine era, so this model definitely wont be able to take the lead for a long time. In fact, the JJ-7 model was supposed to only play a transitional role, and it would be gradually replaced with new trainer aircraft after entering the new century. But like many other pieces of equipment in this era, it gradually became the main piece of equipment. Due to various reasons, the planned new training aircraft never arrived. In the end, the JJ-7, as an essentially basic second-generation aircraft, was actually produced until 2017... Alas...thats so right. ?Sun Huizhong sighed softly: With your words, we can feel more at ease as we continue to carry out preliminary research. You just said that you are currently working on wing selection and inlet matching. What is the specific progress? Coach 9 is not a star model. Chang Haonan only knows that it was not officially put into service until 2011 in the original timeline, and does not know much about the development process. "At present, it has been initially determined to use a double delta wing similar to that of the J-7E. As for the air inlet... it has not yet been decided. I originally wanted to refer to the mandibular air inlet, but you just said that it is not feasible, so... maybe we need to think about it again. think." ? Sun Huizhong was a little embarrassed when it came to this. After all, it sounded like this aircraft was borrowing models from its brother units from head to toe... Chang Haonan didn''t care about this. What he was thinking about now was how to tell the other party the design plan in his mind. Its not just about letting 648 institutes simply copy the answers. It is better to teach them to fish than to teach them to fish. It is better to let them gain experience from it. ?Besides, he only has a preliminary concept of Coach 9 now. More detailed information can only be obtained through calculation. In short, there is definitely no way to come up with the design plan tonight. ?So Chang Haonan considered the sentence: "Actually, when I was designing the J-7F, I also considered another option. However, the changes compared to the J-7 were too big and there was no way to directly upgrade from the old aircraft, so the design work was only carried out a little. " If you are so willing, after I finish processing the changes to match the new engine of the J-7F, I can work with you to improve the plan... This was a complete surprise for Sun Huizhong. So before Chang Haonan finished speaking, he quickly expressed his agreement: Of course, I can apply to the institute to transfer some key members from the design team. ? Sun Huizhong never thought about letting the other party go to the 648 Institute from the beginning. On the one hand, anyone with a discerning eye can see that Chang Haonan''s visit to 611 this time is just a side trip to engage in the J-7F, and participating in the No. 10 Project is probably a serious matter. This new training aircraft is not an important project, and it is impossible to take up too much time and energy on it. . On the other hand, among the cities corresponding to the major designs of the aviation industry, Shengjing, Haojing and Rongcheng are definitely the best. Ice City, Porcelain Capital and Hongdu are also okay, but the geographical conditions for building the city are really good. It''s worse. Thats it for now, lets talk about it after the matter on 7F is over. Chang Haonan nodded as he spoke: In addition, the people who are transferred must at least master some basics of digital design, so the efficiency will be much higher. No problem, Ill call tomorrow. ?At this time, Sun Huizhong already had excitement on his face: Thank you so much, Chang Gong! The next day, Chang Haonan started working non-stop. Random events, in the first half year, the team led by Lu Yuying was not idle, and had almost completed the design of parts other than the air intake and the nose. For him, he has actually gone through the J-7F design process once, and now replacing a new engine is nothing more than taking the entire project team to go through the process again. At the beginning, three undergraduate students were able to complete the preliminary design within three weeks, and now it is no longer a problem. ?Furthermore, the equipment level of the 611 computing center is no worse than that of Shengjing. In short, with the cooperation of Chang Haonan and the project team, the complete design plan of the J-7F was successfully produced after half a month. Compared with the original version of the design, in addition to narrowing and shortening the air inlet to make the aircraft look more coordinated, the cockpit windshield was also changed to an arc type based on Yao Mengna''s experience when improving the J-8C, which greatly improved It improves the pilot''s field of vision and adds a set of 140-liter fuel tanks at the root of the vertical fin, which improves the range even more than nothing... As for the remaining work, naturally it was to send the drawings to Factory 132 and ask them to build two prototypes. A J-7F1 upgraded from the J-7B, and a newly manufactured J-7F2. ?However, it is now the end of January. No matter how efficient it is, the first flight will have to wait until after the year. As for the rest of the year, it will naturally be left to Sun Huizhong and 648 Institute. They have been waiting here in Chengdu for half a month, and have also participated in the improvement work of the J-7F, which can be regarded as accumulating some experience. Computing center, inside the server room. ?Sun Huizhong placed a pile of information on the table in front of him: Chang Gong, this is the main result of our current pre-research, and its all here. Several comrades from Institute 648 gathered around the square table and looked hopefully at Chang Haonan, who was focusing on the drawing in front of him. In the process of improving the J-7F, they have seen what work efficiency is. So now, I basically have unlimited confidence in the latter. After a long while, Chang Haonan raised his head again: Since it is a training aircraft, it is not suitable to use a single inlet design. He picked up a red and blue pencil, took out a piece of paper from the side, and drew a front view of an airplane on it: Whether it is the nose, belly or lower jaw, the single air inlet must be arranged on the axis of the fuselage, occupying the height space. This makes it difficult to arrange a rear cockpit with a height difference, so the air intake on both sides must be selected. " Considering the structural characteristics of the J-7 itself, it is not appropriate to make too many changes to the rear fuselage, so basically we can only consider the design of the under-rib air inlet. In addition, as for the wings, there is nothing wrong with the choice of double delta wings, but the design of the J-7E is still too rough as of now. ?Chang Haonan put down his pencil and motioned for everyone to come to the workstation: "There are two types of double delta wing plane shapes: one has fixed front and rear wing sweep angles, which is the straight-sided double delta wing on the J-7E. The other type has a fixed front wing sweep angle. The angle will gradually increase from a certain angle until it is 90 parallel to the fuselage. In this case, the essence of the front wing is close to an extremely large-area side wing, and the shape of the rear wing will also become The swept wings with a smaller angle are like those of an F18 fighter jet. He called up the 3D model of the wing that he had made a few days ago while waiting for the calculation results, and then continued: "From a styling perspective, the distance between the front wing vortex and the rear wing vortex of the latter scheme will be larger. At a larger angle of attack, the position of the vortex rupture point has been advanced to the front wing surface. In the middle, the separated flow formed after the spiral vortex breaks up is affected by the increasing local sweep angle and re-forms a rather compact vortex structure. " "Such a separated vortex structure distribution allows the latter solution to still generate considerable vortex lift after the front wing vortex breaks. In other words, the aircraft''s stall angle of attack and lift coefficient will increase, and the maneuverability at large angles of attack will be reduced. , especially the rolling maneuverability is better. As a price, the resistance of this solution is much greater than the first solution, and the maximum speed of the aircraft should be difficult to exceed 1.5 times the speed of sound. Speaking of which, Chang Haonan finally put together several preliminary parts to form the shape of an airplane: "But for a training aircraft, as long as it allows students to experience supersonic flight, the maximum speed is not the core performance. Using it in exchange for a comprehensive improvement in high angle of attack performance is definitely a sure-profit deal. " Of course, more detailed numerical calculation work has not yet begun. The specific design plan and the extent to which it can ultimately be optimized are not yet known, so this is also our main task in the following period. ?However, most of the people around him didn''t hear these last two sentences. Because everyones attention has been attracted by the aircraft model on the screen Although it has not yet been designed in detail, it is very rough and uncoordinated. but ?Two-rib air intakes, swept wings with large edges, a large cockpit with good visibility due to the freed up space, and even a nose that can fit a small radar... ??If we look at the J-7F, we can still see a little bit of the original model. Even if the designers of the MiG Design Bureau were brought over to see the aircraft in front of them, they would never recognize it as an improved version of the MiG-21! (End of this chapter) Chapter 189 The idea of ??DSI air intake Chapter 189 Concept of DSI air intake This plane ?After staring at the screen for a long time, Sun Huizhong finally spoke again: I think the potential of this aircraft may not only be limited to being a training aircraft, but may also be used part-time as a light attack aircraft. He is now occupied with thinking of ways to build a plane that is in greater demand. ?It would be best if they could also be sold to foreign customers. ?At this time, the status of companies that can earn foreign exchange for the country can rise like a rocket. In addition to being used for teaching, the two-seat fighter jet can also be used for extra pilot operations that have nothing to do with operating the aircraft, such as searching for targets and controlling precision-guided weapons. Although these functions can also be concentrated on single-seat aircraft, there are still risks in allowing pilots to multitask. So it seems to be a pretty good choice to allow an advanced trainer aircraft with already good flight performance to perform some ground attack tasks part-time. The cost is low after all. But after all, it is the same size as the JJ-7, so the bomb load and range may not be too optimistic..." Another person raised his own concerns. Isnt it better to be 5 stronger than the current equipment? ?Someone immediately retorted: And it can also be equipped with radar and precision-guided weapons. What precision-guided weapons do we have now? Wellthere will always be Sounds of discussion soon erupted all around. Well...actually, we can make some fine-tuning on the same platform. As soon as Chang Haonan, who was in the middle position, spoke, the others quickly fell silent, waiting for his next words: "For example, try to further increase the wingspan and reduce the sweep angle, so that the area of ??the outer wing section is increased and can accommodate an additional set of fuel tanks to increase the range. Then, by installing different onboard equipment, two sub-models can be developed. For customers with different needs. "In our country, there may no longer be a need for light attack aircraft in the future, so you can purchase an advanced trainer type, which means that the rear cabin only retains higher-authority driving functions, and there is no need to install radars and mount large-size ammunition. " Will there be a follow-up model of Qiang 5? ? Sun Huizhong was a little surprised by this judgment: I have a classmate who works in Hongdu and said that they are considering a new attack aircraft project. Chang Haonan nodded: Times have changed. For a big country like ours, the future will be dominated by multi-role fighter jets, with at most a few fighter-bombers included. The positioning of Qiang 5 is completely different from the currently common Su-25 and A10. It has no armor and poor low-speed performance. This model was designed to carry nuclear weapons to carry out low-altitude and high-speed penetration missions that are destined to go without return. However, due to limited technical conditions, the ammunition to go with it has never been released. The Hurricane One is actually just a nuclear trigger. Therefore, the attitude of using the remaining heat and the Army''s long-term lack of dedicated armed helicopters allowed this weapon to be used. The top cylinder of the model is responsible for tasks such as close support. At this stage that is about to enter the new century, there is no room left for light attack aircraft in the air force sequence. So, what about the advanced trainer type? Someone brought the topic back. "Although our country no longer needs it, some foreign users, especially users in third world countries in Asia, Africa and Latin America, their main combat targets are basically rebels or terrorist...guerrillas, so there is still a place for this kind of aircraft. , you can purchase the combat training model, install more advanced airborne equipment in the rear compartment, such as multi-function displays, and leave two relatively large hanging points for hanging some air-to-ground missiles. Is this possible? " The rest of the people showed expressions of surprise or realization. This idea was not very popular in the mid-1990s, but after entering the 21st century, as the cost of fighter jets soared rapidly, many small countries began to consider giving up establishing an air force with air combat capabilities (it couldn''t defeat it anyway, so it was better to simply Abandoned treatment), and turned to trainer/attack aircraft and integrated surveillance and combat drones as the main models. "Of course, in the next period of time, I will work with you to improve this plan and optimize the design of several key parts. When you master the design method, you can also adjust the aircraft according to actual needs and future test flights. Make subsequent adjustments. ?Chang Haonan turned around and looked at the few good seedlings sent by 648 in front of him and said. ?After more than half a year of experience, he has gradually become accustomed to the computer basics of people in this era, and there will no longer be the same mistakes as when he taught Yao Mengna. Before rebirth, all graduate students must have been quite proficient in numerical simulation and knew one or two basic programming languages. But in 1997, most designers only had some familiarity with a few common modeling and fluid calculation software. They had only read a book and used it themselves, which was considered a rarity. ?This situation will probably take another two or three years, and it will not be fundamentally relieved until the same batch of students like Chang Haonan graduate with a master''s degree or a doctorate. We all listen to you! Everyone, including Sun Huizhong, instantly showed expressions of excitement. We are all people who can enter the aircraft design research institute, so we naturally know the difference between a full meal and a full meal. ??This kind of opportunity for a big boss to teach you how to design an aircraft is not available to everyone. Not to mention learning all the other party''s abilities, even if you learn 30% to 40%, it is enough for 648 to come up with some new tricks. Well, I have just explained the overall design of the aircraft, so let me first systematically introduce the theoretical basis and basic steps of digital design... ?In the next two hours or so, Chang Haonan gave the engineers of Institute 648 a lesson that was roughly equivalent to an introduction in an empty conference room with a blackboard nearby. Fortunately, these college students who graduated in the 1990s or even the late 1980s have much more solid theoretical foundations than later generations, so this aspect is not difficult. They are just like Lin Shikuan and others at the 601 Institute and need to change their thinking. Considering that everyones experience is not enough, we still have to proceed step by step in terms of design difficulty. No matter what, we must first come up with the specific design plan as soon as possible, so that the superior units and users will have confidence. "So we can use a more traditional bulkhead air inlet in the first version of the design, and the design of the side strips and wings can also be a little more conservative. We can slowly use it after the project is actually applied for, or even after the first prototype flies for the first time. on some more radical technologies. After saying this, he put down the chalk with a thirsty mouth, picked up the cup and took a swig of water. In fact, it is quite normal to use an aircraft specifically to verify a certain technology. ?For example, in the United States, the technical verification of the DSI air intake was carried out on a modified F16block30. The Soviet Union also verified the axially symmetrical appropriate number of nozzles on a modified Su-27UB. ??Its just that Chang Haonan wanted to be more efficient and created Coach 9/FTC2000 in the process. Are you so sure that the Air Force will approve our model proposal? Obviously some people are not confident enough. After all, 648 Institute has had little successful experience in this area in the past. Of course, thats what Im going to say next. ?Chang Haonan turned the filled blackboard to the other side: In the final version of the design plan, I plan to use a boundary layer-free supersonic inlet, which is the DSI inlet. "On the one hand, this can reduce the weight of the aircraft by about 130-150 kilograms. On the other hand, and more importantly, this project with a lower overall risk is also used for verification. If the technology is mature, it can be used in Project 10, or even More future fourth-generation fighter jets. With this second reason, and the fact that the Air Force really needs a new type of advanced trainer aircraft, I think its almost certain that this model will be officially determined. (End of this chapter) Chapter 190 persian tomcat Chapter 190 Persian Tomcat DSI air intake? Although related concepts have been proposed very early, they were obviously not very common in 1997. Therefore, Sun Huizhong thought for a while before searching for relevant knowledge in his mind: "I remember...a few years ago, the United States built some kind of advanced compact air intake system. It seems that this is what they were studying?" Thats right. Chang Haonan nodded. In an era of underdeveloped information, he was really impressed that the other party knew this: Actually, I have applied the central idea of ??the DSI air intake in previous designs. While speaking, he had drawn a cross-sectional schematic diagram of a DSI air inlet and a baffle air inlet on the blackboard: On the J-7F, I used the nose radome as a cone-shaped precursor instead of a complex partition to process the incoming flow once to prevent low-energy flow from entering the air intake, which greatly improved the air intake efficiency. But in fact, the standard semi-conical shape is not very precise in controlling the flow field, so a more complex fan-shaped lip design is still needed to improve the ability to exclude the boundary layer, which will bring great resistance. , on the other hand, it will increase the volume of the air intake and add back the weight saved by eliminating the partition. Hearing this, another engineer next to him seemed to think of something: I have indeed seen a photo of the F16. Although it is a bit blurry and it is still black and white, the air intake is indeed similar to the one on the blackboard. The shape is quite exaggerated, a bit... a bit like the toad mouth you mentioned before. ??And Sun Huizhong''s thinking is obviously more in-depth: So, the key to the design of this DSI air intake lies in the shape of this... bulge near the lip? The following content was completely beyond the scope of Chang Haonan''s painting skills, so he simply did not continue the meaningless attempt. Fortunately, we are all professionals, and we can explain everything with words alone: "Yes, the bulge compression surface of the DSI inlet is designed based on the waverider principle. Its basic shape is still a conical surface, but several tracking points need to be selected from the leading edge line, and these tracking points need to be selected in the flow field. The point starts to trace downstream of the flow field, and the flow surface formed by these traced streamlines is the bulge compression surface. Although this process is not difficult to say, the numerical calculations involved are quite complicated. I also need to sort out my ideas, so I cant rush it for the time being. I will first complete the overall design according to my previous plan. In fact, Chang Haonans idea is similar to his previous idea for Turbofan 9, which is to conduct research on certain key new technologies in advance for subsequent key models. Last time it was for the Turbofan 10, and this time, it is undoubtedly for the J-10. Since in this time and space, the J-8C has successfully completed the design and finalization and been delivered to the troops for trial use, third-generation aircraft, especially single-engine medium-sized third-generation aircraft such as the J-10, can now completely put aside their pursuit of speeds above Mach 2.0. , and instead focus on optimizing overall performance at medium and low speeds. ? Now that the No. 01 prototype of the J-10 has reached the final assembly process, it is naturally impossible to tear it down and start over. However, the new DSI inlet design can still be used on subsequent full-state prototypes. As long as his efficiency is high enough. After all, the shape of the air inlet of the J-10 itself has undergone a major change. In the full-size model in 1991, an air intake similar to that of the F16 was still used. At the prototype stage, it was replaced with a two-dimensional adjustable inclined plate inlet that focused more on high-speed performance. The previous generation Xiaolong only really used the DSI air intake design from the No. 04 prototype. In addition, the design plan of the No. 01 prototype will not be wasted. It can definitely be exported. China does not need the high-speed capability of the J-10, but it does not mean that other countries do not need it either. Most countries have only one type of main fighter aircraft. This model needs to cover everything, so an old design with relatively good air intake efficiency in the entire airspeed range would be more suitable. Just when Chang Haonan was taking advantage of his limited time a year ago to conduct research on new aircraft and new designs in Chengdu, the 410 Factory in Shengjing welcomed a group of guests that Chinas military industry had not seen for a long time Delegation from Persia. Led by Brigadier General Mark Welsh, Chief of Staff of the Persian Air Force. Among the people responsible for reception, Zhong Shihong, who is responsible for technical work, is naturally indispensable. In fact, during the Xiangzhou Air Show in early November last year, the Persians had already shown a strong interest in several models. The subsequent development did not exceed the expectations of the aviation technology group. They quickly received the information that the other party hoped to use in the military. request for cooperation in sales. ?Its just that no one expected that the one that Persia first expressed interest in was neither the J-8C nor the J-7F, but the Turbojet 14. So under the leadership of Zhong Shihong, the Persian delegation spent about a day visiting the final assembly workshop of the 410 factory and part of the production workshop Again, if the Erharma can be done when you look at this thing, then the previous life of Huaxia will not be able to take out a stable turbofan 10 ... Brigadier General Welsh, I wonder what kind of fighter jet you plan to use our aircraft engine to adapt to? ?Zhong Shihong almost subconsciously thought that the other party was going to buy an engine. As the factory owner, he does not need to think about "whether it can be sold". That is the task of the Science and Technology Commission and the Aviation Technology Group. ?Furthermore, although the Turbojet 14 is a top-notch aviation engine for China, if you really want to compare it on a global scale, it is actually not a particularly extraordinary black technology. If someone buys it, there is nothing it cannot sell. In this era, China''s military industry has not yet reached the level of being selective about its customers. ?But he was obviously wrong. After hearing the question through the translator, Welsh shook his head decisively: No, Mr. Zhong, we are not here to buy your engines. After all, to be honest, considering the current level of the aviation industry in Persia, it may be difficult to fully produce fighter jets. We want to entrust you with the overhaul of a batch of turbofan engines. When he first heard this answer, Zhong Shihong thought it was a mistake in the translation. But he soon realized what the other party was saying: Are you referring to the TF30 engines on your F14s? Thats right. ??Welsh turned around, looked at several turbojet 14 engines being assembled in the factory and said: You should know that the combination of TF30 and F14 does not perform satisfactorily in terms of reliability. Although our pilots have been very careful when driving, failures such as engine surge often occur. Over the years, the spare parts previously purchased have been exhausted. After all, the number of parts obtained through special channels is limited, and the quality and quantity are unstable. The F14 is our main model, so we thought of seeking technical help. (End of this chapter) Chapter 191 Persian Air Force Rebirth Plan (2-in-1) Chapter 191 Persian Air Force Rebirth Plan (2-in-1) What Brigadier General Welsh, you should know that building your own engine and overhauling an engine from another country are completely different things, especially when it comes to parts replacement. ?Zhong Shihong did not directly take over everything: I can only say that from a technical point of view, there should be no insurmountable technical obstacles for us with the TF30, but as for the specific situation, I am afraid we need to wait until we see the actual situation of the engine before we can make a judgment. Sometimes it is this calm attitude that is more reassuring, so Welsh nodded immediately: Of course there is no problem. You can send some technical personnel to Isfahan. This is also one of the exchange conditions we have reached with your countrys aviation technology group. ?This sentence is a bit strange. In principle, as a company that collects money to perform services, there seems to be nothing special about Aviation Technology Group to provide services at customers'' designated locations, and there is no "exchange condition" involved. ?However, considering that the Aviation Technology Group is essentially the vest of the aviation industry, and the latter is closely connected with the Commission of Science, Technology and Industry for National Defense and even the entire military system, Zhong Shihong estimates that there are some twists and turns behind this that he is unaware of. But he did not ask any more questions in front of Welsh, but continued to introduce to him several engines mainly produced by the 410 factory, of course the main ones were the turbojet 14. In fact, the job of engine overhaul is not much easier than building a new engine. What''s more, it is a new model that has been completely untouched in the past. It requires sending people to go on business trips and even opening additional molds to make some spare parts that need to be replaced. , the workload must be quite huge. However, no matter how you say this is just a maintenance business after all, the Persians came to Shengjing instead of Rulika-Saturn. Obviously, it was not because the former''s technology was better but because of the cost, so it was impossible to charge too high a price. , it can only be regarded as making hard money. But selling engines is different. Although the aviation manufacturing industry cannot yet achieve the same level of assembly line production as some low-end manufacturing industries, the scale effect does exist. For a mature aviation engine that has been finalized, the cost and man-hours required to build 100 units is only about 1.5 times that of building 50 units, but the profit gained from selling it is twice the actual amount. What''s more, this is still an export. Although the Persians are not as big as dogs, they must still pay in hard currency. If it doesn''t work, you can still exchange it for oil. With the continuous development of the national economy, China began to transform from a net exporter of oil to a net importer in 1994. In the following two years, the import volume expanded rapidly, and there was a faint trend of oil shortage. Under this situation, what can be done Getting crude oil can be considered a great achievement. ? In short, no matter what, as the management backbone of Factory 410 and one of the main persons in charge of the Seiko Project, Zhong Shihong can definitely benefit from it. ?However, Welsh showed very little interest after talking about overhauling the TF30. The interest he expressed in the turbojet 14 seemed to be just to come to the 410 factory to confirm their technical level. Zhong Shihong, who was born as a technical worker, thought that he was not very good at selling words, so after discovering this, he did not continue to pester, and instead began to quietly mention the excellent performance of the J-8C and J-7F. ??Welsh said that he had seen the J-8C''s flight performance at the Xiangzhou Air Show on TV and was full of praise for its performance. But he still didnt show any intention to buy it. ?This time its completely out of the question. ?However, Zhong Shihong did not give up just like that. After dinner, he found the leader of the aviation technology group who came with the Persian delegation. ??Although one is in a technical position and the other is in an administrative position, they are both from the aviation industry system after all, so the two chatted together within a few words. ?Zhong Shihong leaned on a railing outside the guest house, took out two cigarettes from the cigarette case, then gave one to the other party, and took out a lighter to light them respectively. After a set of smooth movements, he successfully brought out the topic he wanted to talk about: This group of Persians came all the way to China just to visit our 410 factory? "Of course not. They have arranged a trip of about ten days this time. If you ask me, they are really good at picking the time. Even if it is half a month later, I will not be able to go home to celebrate the New Year''s Eve." ??The team leader next to him took a long puff of cigarette and blew out a smoke ring into the air. ??In front of his own people who have a sufficient level of confidentiality, the team leader can finally complain with confidence. Hey, those of us on the front line are really working hard. Zhong Shihong, who was deeply touched by this, nodded. Due to the nature of work in Factory 410, he often cannot go home for holidays. These words brought the distance between the two closer. So Zhong Shihong strikes while the iron is hot: Where are they going to go next? They didnt have any plans themselves. They just specified that they would come to Shengjing first and then to Factory 182 in Nanzheng. We will decide the rest of the itinerary. Factory 182? ?This final destination surprised Zhong Shihong. After all, in the aviation industry system, this can only be regarded as an inconspicuous place, and its presence is probably similar to that of the Yunma Factory that built the city. "Well, there are two Y-8Fs they ordered over there, but they have been delayed in delivery due to the improvement of the aircraft. This time I just received them together and flew them back." So thats it Zhong Shihong nodded and put out the half-smoked cigarette on the iron railing: Then what are you going to do? The leader smokes slower, so the cigarette **** is still burning: "Let''s go around from north to south and east to west. The Persians don''t seem to be interested in buying aircraft. They just want to do some work on upgrading the old aircraft to extend their life. They promised that we can send them out. Technicians and pilots are familiar with the performance of U.S. military aircraft at close range. Old aircraft upgraded The keyword finally appeared. ?So Zhong Shihong took advantage of the situation and continued to ask: By the way, besides the F14, what other models do the Persians have? Cant this one model take the lead? In this era, information was relatively limited, and information was basically obtained through television and newspapers. However, no media seemed to be interested in the air power of a medium-sized country, and there were very few relevant reports. ?The last time Persia became the focus was the Iran-Iraq war, but it is difficult to find news from 10 years ago. ??On the contrary, those in the Aviation Technology Group who have direct contact with foreign personnel can obtain a lot of first-hand information. ?As expected, the team leader gave the answer almost without thinking: "There are not many F14s. There are only about fifty or sixty of them still flying now. The main force is still nearly 200 F4Ds and F4Es, and there are more than 100 F5s. They are all our old friends. There is not much research value. The above Im still more interested in F14, after all He did not continue, but the following content was obvious After all, a year ago, the two aircraft carriers, the Nimitz and the Independence, which brought huge pressure to the Chinese military, carried the main aircraft model F14. ?But Zhong Shihongs attention is obviously elsewhere. F4 and F5 After muttering a few words, his eyes suddenly lit up. The F5 fighter is a twin-engine light fighter that competes with the MiG-21. The reason why it is dual-engine and lightweight is because the J85 engine it is equipped with is actually a model originally planned to be used on cruise missiles. The afterburner thrust of a single engine is only 1800kg. Without afterburner, it is even worse, 1300kg. The two engines together are less than half the thrust of the turbojet 14. Of course, the size is also very small. The F5 aircraft is generally relatively compact. In short, the Turbojet 14 is indeed too big if you want to force it in. But F4 is different. In the standards of second-generation fighter jets, the F4 is an absolute "heavy fighter". The maximum take-off weight is nearly 30 tons and is powered by two J79-GE-17 turbojet engines. The thrust of the J79 is 8100kg, which is similar to the turbojet 14, but its weight is as high as 1800kg and the thrust-to-weight ratio is very low. It is a typical early second-generation turbojet engine.?????Isn''t this right! It is not difficult to insert a small engine into a large body. The remaining problem is how to get the Persians interested in this plan. ?Zhong Shihong quickly thought of a way If there is no demand, then create demand. I have an idea about the next itinerary. I wonder if you would be interested in hearing it? ?He turned around slightly and asked the leader casually. ?Unsurprisingly, the other party readily agreed: Okay, you are professionals after all. "For those of us who manufacture aircraft and aviation engines, we have seen too much that they are all the same. There is not much difference. You can just arrange a few representative visits, such as Factory 112 and Factory 172. " ?Although this sentence contains some personal information, it is indeed correct. ?So the team leader thought for a moment and nodded, indicating for him to continue. In your free time, I suggest you take them to the 607 Research Institute, the Aviation and Missile Institute, and the Second Mechanical and Electrical Bureau of the Shanghai Aerospace Corporation to take a look. I think they will be very interested. After a lot of twists and turns, Zhong Shihong finally said what he finally wanted to say. Institute 607 is engaged in radar, and its most famous product is the JL10 airborne fire control radar. The Aircraft Missile Institute and the Second Electromechanical Bureau are engaged in missiles. The formers representative work is the YJ-8 anti-ship missile, while the latter designed the PILE 11 air-to-air missile that has just completed final target testing. In addition, there is a person from the 410 Factory here who is responsible for building engines. The Persians came here this time, obviously to update their fighter jets. In addition to life extension and overhaul of the airframe and engine, I am afraid it will also be necessary to equip the AN/AWG9 radar with new airborne weapons. Although the AIM-54 has a long range and is powerful, its intended combat targets are, after all, only large aircraft with little maneuverability such as the Tu-22 bomber and the Kh22 long-range anti-ship missile it launches. After various countries, especially the Persians mortal enemies Goudahu and the Kingdom of David, have entered the third-generation machine era, the Phoenix seems a bit too cumbersome. ?Furthermore, these missiles imported from the United States also have fewer rounds, and the remaining number may not be enough. ?In this case, it is logical for them to find new air-to-air missiles for the F14. As it happens, the Thunderbolt 11 of the Second Bureau of Electromechanical Engineering and the AIM7 Sparrow are quite related. Compared with the R27 from Russia, the fitability is obviously much better. ?However, even if these can be achieved, the benefits will not fall on the 410 factory. ?Zhong Shihongs real target is the more than one hundred F4E fighter jets. The age of the aircraft is generally only about 20 years, and the flight time of the Persian Air Force is not long. Coupled with the dry climate, the life of the aircraft should be quite sufficient, and there is great potential for modification. This is why he added a 172 factory in Haojing to his recommended itinerary The JH-7 is produced here. When Chang Haonan and Chang Haonan had a meeting with Zhang Zhenhua from Factory 430, he remembered that the latter said that recently many JH-7s were just in need of mid-term overhaul and were being returned to the factory in batches for maintenance and upgrades. So when you visit the 172 Factory, you will definitely see the JH-7. As a Gulf country, Persia obviously has a need for an air-based anti-ship missile launch platform, and the F14 is not qualified for these tasks. ?Furthermore, the Persian Air Force, which values ??these heavy fighter jets, will not be willing to let them do such dirty work. It is of course impossible to buy an airplane directly. On the one hand, the export of fighter-bombers with a longer range is relatively sensitive, and the price is probably not within the range of customers. On the other hand, before the turbofan 9 is completely domestically produced, even China itself cannot build a new JH-7, and it really has no way to sell it... But that doesn''t matter. By this time, the delegation had already seen Feibaos upgraded JL10A radar, the same model of YJ-8 anti-ship missile, and the same model of Pili 11 air-to-air missile... You must know that the data bus of the Chinese Air Force also refers to the 1553B standard. ??As long as the above things are stuffed into the F4E body, you can get more than a hundred multi-purpose fighters that can both air combat and anti-ship at a very low cost. In other words, the JH-7 wearing an F4 shell. You must know that the JH-7, which was just put into service that year, has repeatedly suppressed the F4EJ of the Self-Defense Forces over the East China Sea. ??There really can be more than a hundred of these things. Not to mention being invincible in fighting all over the bay, at least it can make any warship within 500 kilometers of the Persian coastline weigh its importance. ?Who can not be jealous? As long as Persia shows interest in this upgrade plan, then Dear, the power generation and performance of the J79 engine are too poor, and it cannot exert its full performance. Why not upgrade the power by the way? The free interior space can also add more than a ton of fuel, and the range can be raised to a higher threshold... ??If a computer DIY player from 20 years later can see this scene, then he will probably be very familiar with this set of words. Put in the card with a budget of 3,000, and add money to increase it to 28,000... In short, this set of processes accurately grasps human psychology, and the final solution is really high-quality and low-priced. The upgrade cost of each aircraft is only about two million US dollars, but it can improve the air force''s combat effectiveness to a new level. ?Combined with Persias special geographical location, it even has a certain strategic deterrent effect. Well...the Missile Institute and the Second Bureau of Electromechanical Engineering are not part of our system. If you want to go, Im afraid youll have to apply to the Science and Technology Commission..." ??The team leader seemed to be talking to himself or to Zhong Shihong. ?When he saw the other party, he was still a little hesitant, but the latter simply told him everything he had just thought. ?Of course, some non-important parts have been omitted. The atmosphere between the two was silent for a full minute. ??The team leader looked at Zhong Shihong in shock: Zhong Gong, would you like to consider working in our aviation technology group? I am just for the development of the countrys military industry and energy security. Zhong Shihong''s face did not change. "No matter what, your idea is great. I will contact the Science and Technology Commission tomorrow. Just wait for my good news." The two parted quickly. Zhong Shihong, who was walking back to his dormitory, happily reviewed the operation he had just performed. Whipshot 14, Pili 11, JH 7 Fuck, Chang Gong is so awesome. He concluded. (End of this chapter) Chapter 193 First sight of J-10 (Part 1) Chapter 193: First sight of J-10 (Part 1) To put it simply, drones in the past did not seriously consider the advantages of having fewer pilots. They were basically designed according to the smaller manned drones and performed some tasks that had a high probability of no return, but were not complicated. It''s just a high-risk mission. But after entering the second half of the 1980s, the positioning of drones began to change. Engineers and the military gradually discovered that without having to consider the pilot and a series of related systems such as life support and input and output, they could freely determine the size of the aircraft according to its mission requirements. ?Especially for aircraft used for reconnaissance, patrol and other purposes, the mission load itself is not large. After getting rid of the burden of the pilot, only a small aircraft can meet the requirements. Correspondingly, the power level and fuel consumption required by the aircraft are also greatly reduced, which in turn brings lower operating costs, longer endurance time and stronger site adaptability. ?Some can even take off without a specially paved runway. Take the "Pioneer" unmanned reconnaissance aircraft specially used for reconnaissance as an example. Its length and wingspan are only about 5 meters, and its take-off weight is less than 200kg. However, it can fly at a speed of about 100 kilometers for up to 9 hours. This is for an aircraft. It is almost unimaginable for a conventional manned reconnaissance aircraft. Whats even better is that this kind of aircraft only uses a gasoline engine of less than 30 horsepower. The entire aircraft hardly involves any specialized aviation subsystems. Therefore, it does not require maintenance by professional ground crews. Basically, it can be maintained wherever vehicles can be maintained. Maintain this drone so it can be used by Army units at the division and brigade level. This means that aviation reconnaissance resources that used to require extremely complex cross-service coordination processes and were highly likely to be unavailable are now directly integrated within the organization and are almost readily available. ?Which commander wouldnt want it? In this regard, our country is still basically blank. ?After being opened up by Chang Haonan, Sun Huizhong suddenly felt that everything was dark and bright: I will report to the institute after I go back. It just so happens that colleges and universities have not graduated yet this year. We can take advantage of this opportunity to organize a UAV flight control research laboratory. The latter smiled from ear to ear, poured himself another glass of beer and drank it all in one gulp: The young people who have just graduated now are very good, they are much better than we were back then! ?While speaking, he glanced across the dining table inadvertently. "Well" ?Chang Haonan touched his nose in embarrassment. Obviously, during this period, a certain undergraduate student behaved in a somewhat inhumane manner, which gave him some unrealistic illusions about the level of new graduates. ??But looking at Sun Huizhong in excitement, he decided not to attack other people''s optimism for the time being. ?Some truths still need to be understood through the cruel education of reality. After bidding farewell to several engineers from the 648 Institute, Chang Haonan''s mission in Rongcheng was basically over. The remaining work on the J-7F needs to wait until the two prototypes are off the production line. However, for the comrades who have worked hard at Factory 132, I am afraid that a considerable number of them will have to spend the New Year at their jobs. As for the theory he has been conceiving to predict surge or other engine failures by detecting intake-related data, it requires a huge amount of data for research. It is not a theory that can explode in a short time. Something that produces results. ?Chang Haonan was walking in the courtyard of No. 611 rather aimlessly. ?It is the 23rd day of the twelfth lunar month, and several workers in logistics uniforms are hanging colorful **** made of paper on the street light pole nearby. Logically speaking, he is not an employee of the aviation industry, and school has already been on vacation. If there is no work here, he should be able to go home. But a kind of emotion called "I feel more timid when I''m near the countryside" bothers Chang Haonan all the time. From the perspective of people in this timeline, he just hasn''t been home for a year. However, for Chang Haonan himself, although the two old men were still alive before his rebirth, they were already in their seventies. Now when he returns home, he will see his parents in their prime and his seventeen-year-old sister. Its a completely different feeling. Of course he wants to go home. But when it comes to being able to go back at any time, there is an inexplicable tangle. What would it be like to see your parents who have not yet aged after entering the house? Would you like to bring some gifts to your family? What is the first thing you say after entering the door? ?These questions kept lingering in his mind and became more and more disturbing as the time for his return home approached. Comrade Xiao Chang! A familiar voice sounded. is Lu Yuying. Chang Haonan raised his head and realized that he had unknowingly arrived near the computing center where he had been working during this period. Its New Years Day today, havent you gone home yet? Lu Yuying walked out quickly. I just sent away 648 Sun workers and the others, but I havent decided when to go home yet. Chang Haonan calmed down and found a reason to deal with it: After all, there are still some finishing touches to be done before the year. Lu Yuying was stunned when he heard this answer. Of course he didnt know the complex emotions in the other persons heart, so he believed this statement of course. Then he made a logical guess: Comrade Xiao Chang, are you planning to go to Factory 132 to have a look? Well Chang Haonan was also stunned when he heard the question. ??During this period, he was so busy that he didn''t even have enough time to sleep, so he didn''t originally have this idea. But now that we have said this, it seems there is nothing wrong with going to Factory 132 to see the J-10 prototype in the manufacturing process. Indeed, Unit 01 of Project 10 should be almost completed, right? I have long wanted to see the third-generation fighter jet designed by our country. Hey, if you want to go, just tell me directly. You are not considered an outsider, and the level of confidentiality is enough. It is just a matter of calling a taxi. The J-10 is definitely a landmark page in the history of China''s aviation industry. Although Lu Yuying himself was not directly involved in the No. 10 project, when talking about related topics, his words and expressions still reveal uncontrollable pride. : Come with me, the two of us will go there together. In the evening of that day, under the leadership of Lu Yuying, Chang Haonan finally walked into the final assembly workshop of Factory 132. Prototype No. 1001 is currently undergoing final assembly, and a lot of airborne equipment has not yet been installed. But as a reborn person, he has been able to identify almost all the basic features of the entire aircraft The wing combination of a canard and a delta wing, a wasp-waisted design in the middle of the fuselage, a huge vertical fin at the tail, two ventral fins and speed brakes... Chang Haonan''s breathing became heavy involuntarily as he looked at the staff busy around the plane. As one of the main equipment of the Chinese Air Force, Chang Haonan naturally saw the J-10 with his own eyes before his rebirth. ??I also had a close encounter with it in the Aviation Museum. But now it feels completely different. He is in the assembly workshop of Factory 132! This fighter jet, which is a legend for China, has not yet made its first flight. Its not even finished yet. And he will have the opportunity to directly participate in the research and development of Project No. 10 and become a witness to this story. Or...promoter! (End of this chapter) Chapter 194 First sight of J-10 (Part 2) Chapter 194 First sight of J-10 (Part 2) In the busy crowd, someone soon noticed the two people who had just walked in from outside. Lao Lu? ??Lu Yuying is quite well-known in the 611 School, so even though she is wrapped in a cotton coat, she is still easily recognized. One of the middle-aged men with a square face and half-white hair took two steps forward. Then he also noticed the young face following him, and spent about half a second thinking about it, finally confirming that he had not seen the other person before. ??Although the 611 family has a big business and it is impossible for everyone to know each other, being able to be taken into the 132 factory by Lu Yuying in person is obviously not a casual role. ?Then the answer is obvious. This must be Comrade Chang Haonan. Hello, Mr. Xue, its an honor to meet you here! ?This time, Chang Haonan directly recognized the other party''s identity. Chief engineer of Project No. 10, Xue Chishou. After establishing a new management model in 1994, the chief engineer became the final decision-maker and person in charge of the entire project. Equivalent to a big leader. The chief designer is more concerned with specific technical issues. "I have heard from Lao Lu and Lao Song before that there is a very capable rising star from Beijing Airlines, and he was invited to come to our 611 Institute, but he has been nailed to the 132 Factory for this period of time. I didnt have time to go back to the office to see you while dealing with the problem. Xue Chishou patted Chang Haonan on the shoulder, his tone full of kindness. Thats why I asked Mr. Lu to bring me here to meet with your seniors in charge of Project No. 10. Under the exchange of pleasantries, the people who were actually meeting for the first time quickly became familiar with each other. Lao Song happened to be on a business trip these two days, so we can only wait until the next time we meet to get to know each other. Xue Chishou said with regret, and then pointed to a slightly younger engineer behind him who was checking data in front of a laptop: The deputy chief designer of Project No. 10, Yang Wei, is very capable and should be able to speak a common language with you. Hello, Comrade Chang Haonan. ?Yang Wei temporarily stopped what he was doing and shook hands with Chang Haonan: I have heard about the situation in Haojing and Shengjing before and solved many long-standing problems, but I still didnt expect you to be so young. I have also admired your name, Mr. Yang, for a long time. Facing Yang Wei at close range, who was still in his early thirties, Chang Haonan would be lying if he said he wasn''t excited. ??This man is a real boss and a genius. I graduated from junior high school at the age of 15 and took the college entrance examination without even attending high school for a day. I was admitted to Northwestern Polytechnical University. After graduation, I worked in the aviation system. It took only 7 years to become the director of the research office and deputy chief engineer of the model. ?Chang Haonan once even doubted whether the other party was also cheating. Otherwise it is really difficult to explain this career that is like the protagonist of a novel. Hey, we can be roughly considered to be of the same generation, so theres no need to be so polite. Just call me Yang Gong, or just call me by my name. ?Yang Wei waved his hand and replied. From his point of view, he naturally felt that Chang Haonan was just giving a casual compliment. After all, although he has been involved in several key models and has been promoted very quickly, his status as deputy model chief engineer should not be well-known within the aviation industry. ?If you really want to talk about it, he is probably not as famous as Chang Haonan, who has been the first person to complete advanced technological achievements three times in half a year. Mainly because this efficiency is a bit exaggerated. There was even some gossip about whether this person was Du Yishan''s illegitimate son or not.??? ??The routine polite process did not last long, and the topic of the group of people quickly returned to the fighter jet in front of them. Although we have never met before, your integrated internal and external design method, as well as some simulation and computer-aided design ideas, have actually been of great help to us. ??Yang Wei took Chang Haonan to the computer next to the plane. ?The above shows the CFD simulation results at the entrance of the J-10 air inlet under certain operating conditions. I see that Yang Gong is doing calculations, and he should have already done research on this aspect. Sharp-eyed Chang Haonan noticed that in this model, the six connections between the air inlet and the body have shown different angles. The prototype aircraft that is about to complete final assembly is still the original design. In other words, Yang Wei has noticed that the six ribs, which were originally only used for structural reinforcement, can actually play a role in rectifying and pulling vortices, further reducing intake buffeting and ensuring stable air intake under harsh conditions. sex. And has begun to carry out corresponding optimization design. ? Its just that he cant predict the future after all, so he obviously needs to be more conservative when it comes to changing the design of the prototype. ?Especially because this is the icing on the cake, the priority must be lower than the node of ensuring the first flight. ? ? Together with other improvements proposed during the test flight process, it will be better to wait until the No. 03 prototype is manufactured (02 is a static verification machine and will not be used for test flights). This is the trend of the future after all. ?Yang Wei nodded and admitted: But your paper did give me a lot of inspiration, otherwise the calculation results would not go so smoothly. Its a pity that the No. 10 project was established relatively early, and most of the design materials are in paper form. If you want to fully realize digital design and manufacturing, you have to wait for the next model. In fact, both the J-8C and J-7F, which Chang Haonan personally handled, can be regarded as half-way computer-aided designs. Although they have produced very significant results, they are not as transparent as projects started from scratch. It doesnt matter, just think of it as accumulating experience first, and then consider digital design from scratch when designing the J-10S later. J-10S, also known as the two-seater version, in the original timeline, was the first model for Yang Wei to take the lead as the chief engineer. Actually, we are already trying to design the two-seater model at the same time, but due to the limited size of the design team, the progress is still slower. ?Yang Wei nodded: "But if you can join in later, the work in this area should be faster." ?? Chang Haonan did not answer directly this time, but quietly looked at the No. 01 prototype, which was about 70 to 80% completed, and mentally summarized the changes he planned to make later. In addition to replacing the DSI air inlet, the most important thing is to replace the domestic turbofan power and realize full digital control on this basis. The second step is to upgrade the surge monitoring and control module in the flight control As a single-engine fighter, the J-10 has higher requirements for engine stability, and the demand for this capability is also the most urgent. Finally, there are some details. In the previous J-10, there were many things that were not fatal, but were still a pity. He planned to improve them all. When will the final assembly of this No. 01 prototype be completed? ?Chang Haonan asked Yang Wei next to him. For a brand-new aircraft with more than 60% new technology application, it is naturally impossible to start test flights immediately after final assembly. There is still a lot of ground testing to be carried out. All the plans mentioned above, in addition to verifying relevant technologies in advance, must rely on these test results to be carried out. It can be said that there is nothing more he can do before the prototype rolls off the assembly line. If all goes well, it will be between April and May this year. ??Yang Wei gave the timetable almost without thinking. (End of this chapter) Chapter 195 International bad guy Chapter 195: International Traitor According to Chang Haonan''s understanding, Project No. 10 did not encounter any major setbacks during the final assembly stage of the prototype. Hence the timetable provided by Yang Wei should be accurate. The expected completion time of the J-7F prototype happens to be in May. As an improved version of a mature model, the J-7F does not require particularly complex ground preparations and can be ready for test flight soon. So he quickly made arrangements in his mind for his itinerary after the Spring Festival. Go back to school first to deal with graduation matters, take a short break, and then go back to 611 in April and May to collect data and continue to promote research on surge prediction theory. Perfect. After satisfying his desire to see the J-10 and getting the information he wanted, Chang Haonan did not stay for too long. He checked the progress of the two J-7Fs before leaving Factory 132. For the final assembly stage of the prototype, he is an additional existence that plays no role. Staying in the workshop for a long time will only affect the work efficiency of others. By the way, Mr. Lu. The two of them got on the JB121, which had air leakage from all sides. When they were about to walk out of the factory gate, Chang Haonan suddenly had an idea and asked Lu Yuying next to him: Factory 132, or any of our 611 places that dont sell any cultural and creative products? Since Chang Jiayao wants to be a pilot, it seems that she can get an airplane model produced by the aviation industry as a gift to her. What are cultural and creative products? Obviously this concept had not yet emerged in the 1990s. So Lu Yuying asked with a confused look on his face. ?However, he still motioned to the driver to pull over to the side of the road and stop. Well they are cultural and creative products, some gadgets related to our business, such as bookmarks, water cups, stationery, and aircraft models produced by aircraft manufacturers, etc. with the logo of our aviation industry. Chang Haonan, who was sitting in the back seat, explained it in as simple and understandable a language as possible. Wellwe probably dont have any business in this area Chang Haonan understood it after thinking about it for a while. In this era, most people are still struggling to make ends meet, and the military fan group is relatively weak in both quantity and purchasing power. Naturally, the aviation industry system cannot think of such a revenue-generating business. Furthermore, model culture has not yet developed much. In the eyes of many people, this thing should only be played by children. ?However, after a little thought, Lu Yuying came up with a solution: If you really want it, you can ask a worker to make one for you. Anyway, everyone is familiar with those types of aircraft, so it shouldnt take long. Models like the wind tunnel are also made in the factory. Thats okay, the comrades workers are already busy enough during this period, so we wont cause them any extra trouble. Lets go back first. The car started up again and drove slowly towards the 611 office. The reason why Chang Haonan chose to refuse was only for one reason. The more important reason was that before he was reborn, he had seen those white metal molds used in wind tunnels. The restoration and craftsmanship were very good, but they were completely the original color of metal. , the beauty is average. ??And places like the edges of the wings are as sharp as blades and can be easily cut. It seems that I have to think about whether I can buy other gifts. ?At this time, the driver who had been driving silently spoke: Chang Gong, in fact, this kind of thing should be sold in your capital city. In many cases, origin is not determined by where ones hometown is, but by where one works, or where ones organizational connections are. As a person from Beijing University of Aeronautics and Astronautics, Chang Haonan is naturally considered to be someone sent from Beijing. The capital? "Yes, I have driven a car for a visiting foreign delegation before, and I heard from the receptionist at the Aviation Technology Group that there is a shop specializing in souvenirs at the Beijing headquarters. If you are interested, you can go and have a look." The driver replied. "I see." This is a direction that Chang Haonan has never thought of before. He originally planned to go home directly from Chengdu, but it seemed that he could also go back to school on the way. ??Anyway, he doesnt need to pay for the travel expenses himself, and there is an apartment there that he has no property rights but is considered his. Since I got the key, I have only lived here for less than ten days in total. The novelty has not worn off yet. By the way, that store shouldnt be open to the public only, right? Chang Haonan remembered that some of the literary works he had read seemed to have settings similar to foreign-related shops. The kind that only accepts foreign currency and is not open to locals. ??As a result, he received a blank look from Lu Yuying: Even people my age know that the special retail business disappeared last year. How come... "Well" Chang Haonan, who was a little embarrassed, raised his hand and touched his nose: I have been busy studying in the past few years. I have never been out of school, so I dont know much about these things. ?The actual reason is of course that he has not been reborn last year, and he has never been to that kind of super large shopping mall in his previous life. Thats right, otherwise you wouldnt be able to learn so much. Lu Yuying immediately believed this statement: Its God who rewards those who work hard! ?The sigh made Chang Haonan feel a little embarrassed. ?Chang Haonan flew back to the capital on the next day''s flight. The first thing I do after I get home is to clean the house that I havent lived in for several months. ?The body of a young man is indeed different. Twenty years later, after such a flight, he would definitely be so tired that he would fall asleep after returning home. How could he still have such abundant energy??????Then... Since I have been away for such a long time, there is no way there will be anything to eat at home. ? And its getting late now. In the 1990s, the service industry had just gotten rid of the slogan Dont beat customers, so there werent many shopping malls open late at night. At least Chang Haonan didnt know where to find one near the school. So I still have to go to the cafeteria for dinner. Since it is already winter vacation, most students have left school and gone home, so the cafeteria has also closed for dine-in meals, leaving only a window to take care of those students who stay in school for various reasons, as well as the very few who have no home. The teacher is a hard-working teacher who cant cook. As a result, the queue length here is no less than usual... ?Chang Haonan looked at the people in the team and realized that he didn''t bring a lunch box. ?Thinking about the hundreds of thousands of dollars in his bankbook, he finally decided not to go back and spend five cents to buy a disposable lunch box. Then he met a fat man with curly hair here. A lunch box. The latter handed over the dime coin in his hand. Old Wu? ?Chang Haonan silently took back the five cents he had taken out. Brother Nan? ?Wu Yifan turned around, also looking shocked. After a few seconds, he turned his head back again: Two lunch boxes. ?Ten minutes later, the two people carrying the food left the canteen together. Would you like to go to my place and eat together? The two people who have a good relationship haven''t seen each other for more than half a year, and they really have a lot to talk about. But Chang Haonan is going to buy gifts for his family tomorrow. This kind of thing will most likely take a whole day in 1997. "It still doesn''t work. I have to get up early tomorrow and prepare to go back and have an early rest." Chang Haonan shook his head as he walked: By the way, Lao Wu, do you know how to get to AVIC International Building by bus? Where is that? ??Wu Yifan, a person who is not prepared to engage in his own profession, is naturally confused. Well, its just... I got stuck mid-sentence. AVIC International Building is near the Bird''s Nest. But the Olympic bid has not been successful yet, and there is no Bird''s Nest at all. ?Other than that, Chang Haonan didnt know any other landmark buildings around itthe first time he went there was in 2007. ?Wu Yifan who saw this scene probably understood: Forget it, do you know the approximate location? In Chaoyang District, outside the North Fourth Ring Road, which is currently under construction. Thats fine, Ill send you there tomorrow. You send Chang Haonan was stunned: How do you send me off? "hey-hey" ??Wu Yifan showed a smile and pointed to a red car parked not far away: I got a car. After all, I am in my early twenties. Even if I can usually behave more diplomatically, I will still show some emotions in front of my best friends. It''s a kind of showing off, but it''s obviously not malicious. "ah?" ?Chang Haonan knew from his previous life that Wu Yifan made his first pot of gold in his last school year. But I didnt expect the barrel to be so big. You must know that the price of a car in the 1990s was even higher than that of more than 20 years later, often costing hundreds of thousands or even hundreds of thousands, not to mention the converted purchasing power. Even low-end Korean cars like Hyundai and Daewoo are worth a house in Beijing, let alone models like Audi, BMW, and Buick. The two of them walked to the car. It is square and square, and looks pretty good. Not bad, Lao Wu, this car is quite beautiful, what brand is it? Lada 2107 is a Lao Maozi car. I received it directly from them. It cost less than 50,000 yuan. I originally wanted to sell it, but in the end I didnt want to part with it and kept it for myself. Speaking of his favorite car, Wu Yifan is obviously very interested. I fuck Comparing to the car in front of him, what Wu Yifan just said shocked him even more: Are you a cheater? (End of this chapter) Chapter 196 Want me to write teaching materials? Chapter 196 Let me write teaching materials? International prostitution, a special industry that lasted throughout the 1990s. ?High risk and high reward, wandering on the edge of the law and even life and death, but you can often make a lot of money for one vote. In his last life, Chang Haonan also chatted with Wu Yifan about what he was doing in the first place, but at that time the latter only said that he was doing some second-level dealer work. Looking back now It really cant be considered a lie. It is true that I am also a second-rate dealer. Its just that he didnt expect that the other party could play such a big role. Ahem ??Wu Yifan opened the car door, tied the plastic bag containing the lunch box and placed it on the passenger seat: This statement is not very accurate. We are qualified and have followed formal customs declaration procedures and paid taxes, so we should be called cross-border traders. Okay, cross-border trade merchant, what exactly do you do for cross-border trade? For Chang Haonan, it doesn''t matter how he is called, even if he is not really qualified. The role played by the gangster group before the 21st century was generally positive, both for us and Maos side. There are a lot of them. The exports are mainly food, daily necessities, clothes, shoes and socks, and wine. The imports are generally heavy industrial products such as machine tools and automobiles, as well as aircraft parts and speedboats. Airplane parts? ?Chang Haonan found it hard to imagine that this classmate who was still doing major homework with him more than half a year ago had already started reselling airplanes. Of course, on the other hand, it would be hard for Old Wu to imagine that the classmate who led him to do his homework more than half a year ago has already begun to design a real aircraft... We all have a bright future. "Yes, but my partner is responsible for such big things. He is very courageous and has strong connections. I just want to make a small profit. Otherwise, I would have driven a Mercedes instead of using a Lada." Thats it ?Chang Haonan nodded. ??It is indeed reasonable. Wu Yifan is very capable but has an average background. I am afraid it will be difficult to grow big in such a short time by working alone. By the way, do you have anything suitable as a gift for the older generation? After all, this is the first time in my life to see my family, so I should buy something rare if I am not short of money. Then it depends on who you are going to give it to, Academician Du? No, no, no. Chang Haonan quickly denied it, and then explained: Send it to my parents. If you want to give it to your parents, you should be there soon. Let me think about it... ?Wu Yifan, who was already in the car, raised his head slightly and tapped the steering wheel with one finger. ?Seeing that he failed to give an answer for a long time, Chang Haonan realized that Lao Wu should be thinking based on his past economic conditions. The price is easy to negotiate, so we dont have to be so strict. ??Wu Yifan glanced out of the car window in surprise, his expression probably similar to when Chang Haonan saw the car just now. In this case, I have a Rocket watch, the brand Gagarin wore when he went to heaven, and a pen, which is an imitation of the Parker 51, but the workmanship is very good. Okay, how much is it? Give me a total of 200 yuan. No problem, can you bring it to me tomorrow? ?This price is not expensive by any means. A watch and a gold pen, even if they are domestic brands, cost about three to four hundred. I will pick you up at the school gate at nine oclock tomorrow morning and take you to that AVIC International Building, and I will give it to you then. After saying goodbye to Lao Wu, Chang Haonan carried the already a little cold meal and prepared to go home. The faculty and staff residential area is actually built together with the former dormitory area. It is currently only the first phase of the project and will gradually replace the old-fashioned tube buildings with apartments. Therefore, most of the people living in the whole place are faculty and staff of Beijing Hang University. Now that the New Year is approaching, there will be more and more people. ?Chang Haonan met an acquaintance as he was approaching the gate. Classmate Xiao Chang! Classmate Xiao Chang! ?Because the voice was a bit unfamiliar and he was wearing a cotton hat covering his ears to protect himself from the cold, he didn''t realize that someone was calling him until the second call. Dean Tang? The visitor is none other than Tang Lintian, the dean of the School of Aeronautical Science and Engineering at Beijing Hang University. Chang Haonan had only met him twice before, during the final group meeting and postgraduate interview. ??However, first of all, Tang Lintian looks quite distinctive, and secondly, the unit building where he lives now was specially arranged by the other party, so he left a deep impression on him. Its already this time, havent you gone home yet? ??Tang Lintian has been a leader for a long time after all, and he is very skillful in greeting people from the beginning. When he said going home, he naturally did not mean going back to his residence, but his hometown. Obviously, although he is the dean of the college, Tang Lintian is not someone inside the aviation industry system, and he is not very clear about Chang Haonan''s specific whereabouts in the past six months. Im going back soon. I have been working on projects in Haojing, and I just recently completed the tasks planned years ago. Chang Haonans external cover has always been that he is participating in the MA-60 and related airworthiness verification projects. This may well explain his absence from school for long periods of time. Even better, because I was previously responsible for the development of aircraft anti-icing systems and the compilation of airworthiness certification standards at Nanzheng University, 603 Institute actually sent a vague letter of thanks to Jinghang University. He immediately confirmed the content of his work. Mr. Du values ??you very much. Tang Lintian stopped and turned around to look at Chang Haonan, who was half a head taller than him. He couldn''t tell whether his eyes were filled with expectation or envy: Work hard, the future of the aviation industry is yours. The current conditions are much better than what we had back then! At this time, it is natural to cooperate with the leaders statement: Dont worry, Dean, I will work hard. The two of them started walking side by side towards the inside of the community. Xiao Chang, there are two more things that I have to tell you on behalf of the college. ?Tang Lintian''s tone became slightly more solemn. You said. First of all, in November last year, the college confirmed that you were the recipient of this years Science and Technology Committee scholarship. The certificate and 1,000 yuan bonus are all with me. I will give them to you tomorrow. Thank you to the college for recognizing my achievements. Of course, it was impossible for Chang Haonan to cheer for such a thing now, so he was just polite. And according to his intuition, that was definitely not the point. As expected, Tang Lintian continued: The second thing is more important. The college is planning to open a new course for graduate students entering next year, which is your class, to introduce the application of finite element ideas in aircraft structure design. This is the first course of its kind in universities across the country, and it will involve a lot of software and programming content. "this" ?Chang Haonan really wanted to ask himself if he didn''t have to take this course, but he didn''t know how to ask. ?However, the other persons next words were completely beyond his expectation: So for the sake of the college, I hope you, Xiao Chang, can write the last two units of this textbook. Chang Haonan stopped and looked at Tang Lintian beside him stiffly: "I?" Compile teaching materials? (End of this chapter) Chapter 197 Write your own textbooks Chapter 197: Write your own textbooks Yes, after discussion at the academy, we unanimously believe that you are the most suitable and qualified person to write this part of the content. ?Tang Lintian replied with a matter-of-fact expression: The related fields of computational fluid dynamics and computational structural mechanics are still relatively new topics in China. Although various research institutes and universities are spontaneously carrying out research in this area, from the perspective of talent training, relying solely on This format is clearly not enough." "If we want to develop the aviation industry, our education must keep up with the development trends of the times and add systematic courses to the training programs for graduate students and even undergraduate students. What you said at that group meeting was very good. , many students and even teachers have reported that they want you to give lectures directly. ?This sentence frightened Chang Haonan quite a bit. He had already packed his timetable so much that he would definitely not have the energy or time to go to class, at least in a short period of time. "Dean Tang, this is not possible. I will only be a doctoral student after I enter school next year. How can I be qualified to take classes? Besides, the MA-60 project is now in the most critical period of obtaining airworthiness certification, and I cannot abandon Hao Jing. Theres work over there. "Don''t be anxious. It is precisely because of your actual situation that I advocate letting you directly participate in the preparation of teaching materials, so that you don''t have to worry about running in both directions." Obviously, Tang Lintian understands the window opening theory ??If you feel that the room is too dark and you need to open a window, you will definitely not be allowed to do so. But if you advocate removing the roof, they will mediate and be willing to open the windows. But Dean Tang, I think this kind of applied courses may not actually require textbooks in the traditional sense, right? The two of them walked slowly towards the community again. Before his rebirth, Chang Haonan often took care of new graduates. According to their general feedback, the teaching of this kind of thing is basically based on practical operations, and the teacher can at most give out printed handouts. "Regarding this issue, we have also asked computer science teachers, and the opinions they gave are similar to what you just said. If we talk about applied things now, it may be completely different by the time students graduate, so many teachers No textbooks are needed at all. The matter of adding new courses and compiling teaching materials is obviously not a whim of one person. Tang Lintian has already considered the issues raised by Chang Haonan: Its just that the college still feels that our situation is still different from that of the computer side. "The Internet industry has developed rapidly in recent years, and communication at home and abroad is relatively smooth. I don''t mean to look down on anyone, but I think that in their industry, only a very small number of people should be responsible for basic low-level research, and most people should They only need to complete very superficial work step by step without knowing why. "Our situation is different. The aviation industry is generally quite closed, especially in the past few months. I don''t know what happened. The Science and Technology Commission suddenly started to spread rumors without warning, saying that we would establish our own aviation industry. Industrial standards have stopped many projects to convert American standard documents. Ahem ?Chang Haonan was caught off guard by a cue, and Chang Haonan almost choked on his own saliva. Tang Lintian, who didnt know the inside story, didnt care and continued to explain: "In short, this is certainly a good thing in the long run, but for our graduates, each of them may have to participate in the task of laying the foundation. As a university, at least at the level of graduate education, we cannot be satisfied with To only train some operators, you still need to focus on some theoretical aspects, and what I want you to complete is the basic part of computational fluid dynamics. Xiao Chang, you must not hide your secrets at this time. The last sentence was naturally said in a half-joking tone, with a bit of excitement. ?After Tang Lintian finished speaking, he turned his head and looked at Chang Haonan again, waiting for the latter''s answer. He knew that he should not be rejected. ??If the other party was really stingy, there wouldn''t be that group meeting that caused a commotion in half the college. In fact, this is indeed the case. Although this is a somewhat troublesome task, Chang Haonan is ready to take on the next step. Tang Lintian obviously has a very long-term vision. This course and this textbook are also beneficial to achieving the goals that Chang Haonan set for himself after his rebirth.????????????????????????????????????? ??????????????? Although it will be painful when you are in school, it will definitely benefit you throughout your life after you enter the workforce. As for why there was no such course in the previous life... Perhaps its because I couldnt find a suitable author. But before agreeing, there are still some details that need to be confirmed: So the basics are put at the end? Chang Haonan still remembers that Tang Lintian said at the beginning that he would write the "last two chapters". Perhaps because he didnt expect that the other partys focus would be here, Tang Lintian was stunned for a moment, and then nodded: The first version is expected to be like this, and the course sequence can be flexibly adjusted by then. On the one hand, if the postgraduate courses start smoothly, our plan is to use the same textbook in undergraduate courses. However, undergraduate courses will definitely focus on application, so there will still be some relatively simple content in the front. On the other hand, we are also a little worried that what you write is too difficult. Putting it at the front of the textbook will make students fearful of difficulty, and... ?Tang Lintian touched his head awkwardly: And we have to consider the passing rate after all. If everyone really doesnt understand, we can temporarily exclude the last two chapters from the exam, but we cant ignore the first content, right? You are really thoughtful... This reason also amused Chang Haonan. ??But it is reasonable. Its the first time, so its inevitable that we dont care about the severity. In case of 70%of the subjects, students and colleges cannot be affected. It is said that in later generations of schools, if the failure rate is too high, they will take the root sign of the students'' scores and then multiply them by 10 to make the results look better (36 points is enough to pass, 100 points is still 100) , I dont know if its true or not Theres no way, its all lessons learned from the past ?Tang Lintian shook his head with emotion, obviously having lingering fears about something. Are there any specific requirements for the content of these two units? No, you have to believe in yourself. In this field, let alone our school, I believe that no one in the country dares to say that it is more authoritative than you! Tang Lintian, who was originally asking for help, waved his hand and gave Chang Haonan the greatest degree of freedom: As long as the topics are computational fluid dynamics and computational structural mechanics respectively, you can do whatever you want with the rest. So, what do you think about it? Having said all that, Chang Haonan has nothing to worry about. He took a long breath and watched the long white breath rising slowly under the dim light: Okay, Ill take care of this part. (End of this chapter) Chapter 198 queens fleet Chapter 198 The Queens Fleet After agreeing to the invitation to co-write textbooks, Tang Lintian took out a ballpoint pen and a notebook from the inner pocket of his cotton-padded coat, wrote something on it, and then tore off the page: This is my pager number, as well as my home and office phone numbers. If you have anything you want to ask, you can contact me at any time. ?Chang Haonan subconsciously wanted to give the other party his contact information. Then I realized that I didnt have one at all So I had to take the note, fold it and put it in my pocket: Okay, Dean Tang, I will contact you if I have any questions. At the same time, Chang Haonan got the opportunity to write a book for the first time in his life. ?Permanent Joint Headquarters, Northwood, Kent, UK. ??A man in the uniform of a rear admiral knocked on the door of the office of Jock Slater, the First Sea Lord and Chief of the Royal Naval Staff. Sir Jock, are you looking for me? Yes, Alan, sit down first. Jock stood up, took out a bottle of wine from the cabinet next to him, and poured half a glass for himself and the visitor. ??Although there is a big gap in official ranks between the two, they both come from naval families, and their families are familiar with each other, so there is not a strong sense of alienation. Its already 1997. ?This seemingly unreasonable sentence made Alan West, who had just received the wine glass, a little confused: Wellactually, its already the second month of 1997. Obviously, he had no intention of getting to his superiors. Jiao Ke, who was speechless, had to choose a more straightforward way of expression: If nothing else happens, the United Kingdom will lose another piece of land this year. You mean...Hong Kong Island? ?This time West understood, but not completely: But wasnt that something that Mrs. Thatcher decided on more than ten years ago? Thats true, but things are changing after all. ??Jock held the wine glass and sat back behind the desk gracefully. ??Although the other party still didnt guess the point of the conversation, at least he got on the right track: Prime Minister Major is asking us to do something before it becomes irreversible. "this" The people in the West were dumbfounded when they heard this sentence, and the wine glasses they raised to their lips also stopped in mid-air: What can we do? Such as sending out a fleet. ??West''s hand shook and he almost spilled the wine in the glass. ?For a moment he thought that at least one of himself, Sir Jock, and the Prime Minister had gone mad. After about a few minutes, the rear admiral regained full language skills: Thisthis is crazy. With all due respect, Sir, we are all nuclear countries, and China is not Argentina. At least they have much more missiles. After saying this, West added in his heart: And even without missiles, we cant survive just iron bombs. In 1982, he was serving as the captain of the frigate Enthusiasm. ??In that war, the Zeal was hit by five 1,000-pound MK17 unguided bombs by Afghan attack aircraft penetrating at low altitude. ??If it werent for the fuse setting problem that caused only two explosions, Im afraid it would be a different person sitting here today. "Of course I know this, so I never said I would send a fleet to go to war." ??Jock shook his head and drank all the liquid in the cup: The Conservative Party is in a very bad situation now. If nothing is done to save support, it may fail soon. So he hopes he can be tougher on this matter. "Why don''t you just find an excuse to delay it? Can''t the cabinet secretary even do this now?" West said with some disapproval: Isnt that how they coldly treated our request for more funding? Actually, there is another reason. Jock, who was pushed back, also realized that the reason he gave was indeed not very convincing. After hesitating for a moment, he continued: Some members of the royal family also hope to use this to divert public attention. Britain needs a publicity victory to suppress the public opinion storm caused by the prince and princess. Theoretically, the royal family under a constitutional monarchy should be just a mascot. But this is obviously not the case. Propaganda victory ? ? West picked up his glass again and added an accent to the word "publicity", and then imitated the tone of a character in a certain TV series and said a famous line: ItistomakepeopleBELIEVEBritainisdefended? Obviously, he has gradually caught up with the rhythm. Thats right, so we dont need to get close to the coastline. We just need to drive the fleet over, show force at a place beyond their reach, and then return. ??Jock gently fiddled with the globe on the table as he spoke: You know, if the Chinese navy wants to go to the ocean, it will take at least several months to prepare, so it is impossible to react. But if the distance is too far, wouldnt there be no threat at all? They dont have to deal with it at all. ?? West is still a bit confused about the specific plans. The admiral stood up again and came to a huge world map posted on the wall: "Regarding this, the Pentagon will exert some influence and arrange for Annan''s army to conduct joint exercises with us. The location... will be placed here." ?His finger pointed to a place not far from the coastline of Annan Kingdom: The ownership of this sea area is controversial. Annan has always hoped to develop the deep-sea oil and gas fields nearby, so it approached BP. So we have to go over and support them? ??West also came to the front of the map. Its no big deal, lets each take what he needs. ??Jock turned around and looked at West next to him: We can kill two birds with one stone. We can not only help BP win this project, but also disgust the Chinese people and give an explanation to the royal family and the Prime Minister. With our support, Annan will be more confident. Anyway, the exercise area is nearly 900 miles away from their Qiongzhou. According to intelligence, the Chinese have no sea and air power worth mentioning in this direction. At most, they can dispatch some old-fashioned frigates or speedboats without any risk. So, you are going to let me lead this fleet? By now, West could guess the purpose of calling him here. Faced with this question, Jock did not answer directly, but changed the topic: Alain, if I remember correctly, you have been serving as rear admiral for five years, right? ??West''s eyes suddenly lit up. ?This naked statement can no longer be regarded as a hint ??As long as you can complete this unchallenging task, promotion to an official position is just around the corner. So, has the specific composition of the fleet been determined? Obviously, he has accepted this mission by default. Not yet, what do you think? On professional issues, Jock decided to consult the frontline commanders for their opinions. Since we want to influence public opinion, the size of the fleet must be large, otherwise the impact will not be enough. ? West immediately began to analyze: "We must have an aircraft carrier. If we want to set off soon, the Excellence should be in a seaworthy condition. The Sea Harrier aircraft performed very well last time. Its performance is not inferior to Annan''s MiG-21, so we can take the opportunity to promote it. " "Type 42 destroyers have a mediocre reputation, but they show cowardice when carrying them. They can be replaced by Type 22 frigates, Beaver, Cornwall and Campbelltown. Although they are frigates, their displacement is 4,900 tons, which is larger than all Chinese combat ships. Its completely possible to suppress them. "Although we will not really do anything to Hong Kong Island, we still need to make a sufficient posture. We will incorporate the Dreadnought dock landing ship, and then bring a few medium-sized landing ships and marines, and follow the instructions for landing on the Falkland Islands. With scale preparation, the cost of using these ships is very low, and it can also increase the size of the fleet, which is very cost-effective. There are also supply ships. The newly commissioned Victoria Fort should be able to perform tasks..." ? West''s business level is really nothing to say. He almost arranged a fleet that considered all aspects carefully on the spot. Since it is just a fleet cruise with no actual risks, it is natural to make the Royal Navy look more majestic. ??It would be nice to clear the air from the 1982 loss. (End of this chapter) Chapter 199 Superior soft sleeper Chapter 199 Senior Soft Sleeper After hearing the specific plans for the fleet, Admiral Jock Slater nodded with satisfaction. As the de facto supreme commander of the Royal Navy (the nominal commander of the Royal Navy is the Queen or the King), he certainly hopes that the fleet he sends out will be well-organized and sail thousands of miles, so that the world can once again see the shadow of the empire on which the sun never sets. . But the reality requires that he must consider the cost of this operation and cannot make it difficult for the Secretary of Defense to do so in the House of Commons. Even if the Conservative Party looks like it wont be able to bounce back for a few months, ? Wests deployment happened to be able to satisfy his boss and, of course, the vanity of the royal family while keeping the operational budget at a relatively low level. No media would waste space listing every ship in the fleet. In fact, those reporters may not even know the difference between different types of destroyers and frigates. So the report will only say "a huge fleet of more than 30 ships, including the aircraft carrier HMS Excellence, HMS Beaver, frigates HMS Cornwall and HMS Campbelltown, and the landing ship HMS Dreadnought..." ?Hence, both lizi and face are obtained. There is nothing wrong with your arrangement in general, but we cannot make a decision yet on which warships to send out. Alan, write a written plan to me as soon as possible after you return. ? Slater returned to the desk, took out a newspaper dated December 31, 1996 from the drawer and handed it to West: "Be careful not to have too obvious tendencies in the conclusion. At the beginning, just emphasize the effect of naval operations on improving public morale and support. You can refer to Thatcher''s example and previous opinion polls conducted by the Guardian. The result is this." The latter took the newspaper and found a shocking headline written on it: "This is the final chapter of the British Empire". Obviously, for a media like the Guardian whose position is leaning towards the opposition party, it is definitely not too big a deal to watch the excitement. "In addition, remember to add a chapter in the middle of the text to explain the possible risks of this operation and remind decision-makers to consider it carefully. I suggest you sandwich this content between the specific equipment list carried by the fleet and the personnel composition. " The middle part? ? West, who had not yet moved his attention away from the report, was stunned: But generally speaking, the format ?Before he finished speaking, he was interrupted by Jock waving his hand: "This part must be added, otherwise if something happens then, they will put all the responsibility on our Royal Navy. But if it is placed in too conspicuous place, I am worried that the minister will look forward and backward again, just in case of equipment The lists and personnel lists are all filled with tables and figures, and the minister will never look at them, so it is safest to be caught between them. After explaining, he looked to the opposite side meaningfully: Understood? ? West thought for a moment, then nodded with surprise. ?Just at that moment, he suddenly figured out something From the beginning, Jock said a lot of things that had little to do with the military field, and also put himself directly responsible for writing the action plan submitted to the Secretary of Defense. He obviously meant to support him. As for why you choose yourself... In addition to the close relationship between the two families, it is probably also because they are half a generation apart in age. ??The Admirals second son is currently serving as the captain of the Type 23 frigate HMS Somerset. The Type 23 is mainly used for anti-submarine warfare and its tonnage is not as good as the older Type 22. Some of its weapon systems are not yet stable, so West just considered it purely from a business perspective and did not intend to take any of this model into consideration. ?But now I need to change my mind. He is used to the straight-forward style within the army, but he is not really stupid, otherwise he would not be able to get the position of rear admiral. Some things are more appropriate for me as a subordinate and fleet commander to raise. Got it, Sir Jock. ?? West folded the newspaper in his hand and tucked it under his arm, then put on his military cap again: The plan can be completed within a week, and I will consider the fleet list for this mission in detail. The plan just now seems to lack some cutting-edge combat forces that represent the future of the Royal Navy. The two of them showed a tacit smile at the same time. You go and do your work, Im going to Westminster. ?Chang Haonan encountered a big or small trouble. He forgot how terrible the Spring Festival Transport, especially the Spring Festival Transport in the 1990s, was. As a prefecture-level city, Liucheng certainly has an airport, but the scale is too small, and the economy is not very developed, so few airlines choose to open routes here. At the beginning of the 21st century, due to airworthiness issues, Sanyan Airport was suspended for a period of time. In 1997, although the association was still nominally responsible for civil aviation business, there were only two flights per week, one to Beijing and one to Shanghai. Unfortunately, the next flight is on New Year''s Eve. Chang Haonan, who couldn''t afford to wait, finally decided to buy a sleeper ticket and go home. Compared with hard seats, the environment of sleeper carriages is better because the density of people is lower, so theft is not so rampant. Of course, its just that its better and more limited. ??However, there is no 12306 these days. Chang Haonan only remembers that the railway system operated a telephone booking system, but as a reborn person, he had long forgotten the long series of numbers, and secondly, there was no phone installed in his home. Had no choice but to give up. "well" Chang Haonan looked at the calendar on the wall, and while sorting out the gifts he just bought from Lao Wu and AVIC International Building today, he lamented that he had been so busy in the past six months that he had almost lost his common sense in life, and he also comforted himself by the way - There are probably not many people who can afford sleeper tickets these days. Even during the Spring Festival travel season, there shouldnt be no car to ride on. ?At this moment, there was a sudden knock on the apartment door. Opening the door, Tang Lintian was standing outside. Dean Tang? ?Chang Haonan was a little surprised to see the person coming. After all, it is a house allocated by the school, so it is normal for the dean to know everyone''s address. But after all, we only met last night. The relationship between the two of them seems not to have reached the level where they would just drop by for a meal when it was almost time for dinner. ?However, he quickly invited Tang Lintian in and poured two more glasses of water. You are here, and I am not prepared at all It doesnt matter, I just represent the college to express my condolences to our young researchers. The two sat down on the sofa and chatted about some issues related to the textbook. But Chang Haonan was very sure that Tang Lintian did not come here specifically to discuss academic matters. Sure enough, after a certain small question was over, the latter changed the topic without any trace: Xiao Chang, I remember you are from Liucheng? Thats right, a county town below Liucheng. ??Tang Lintian obviously couldn''t remember it, but specifically checked the student information, otherwise he would have mentioned it yesterday if he had something to do. ?Of course Chang Haonan would not expose this kind of thing. ?However, the other partys next question was beyond his expectation: Have you bought your train ticket home? "Uh...not yet. I''m going to buy it tomorrow and take the sleeper home." A guess gradually formed in Chang Haonans mind ?Is it possible that someone just gave me a pillow when I fell asleep? ??Tang Lintian did not disappoint him. He turned around and took out a ticket from his bag. ?Cardboard tickets full of period characteristics, but the shape and color are slightly different from common ones. Considering your situation, the college has arranged a high-end soft sleeper ticket for you. Tonights train does not go directly to Liucheng, so we bought it for Jinxi, which is next to Liucheng. Chang Haonan has seen a lot, but when he saw this ticket, he couldn''t help but feel a little shaken in his heart. He has heard about high-end soft sleepers. The kind with only two bunks in a private room. ? Expensive is the second priority. In the 1990s, even if you had money, you might not be able to buy this ticket. In the same train, the environments of premium soft sleepers and hard seats are basically two different worlds. Intellectually speaking, he knew very well that Tang Lintian was trying to win over him on behalf of the academy. After all, the other party didn''t hide it either. From this apartment building, which is nominally a dormitory, but he can automatically get the property rights as long as he obtains faculty status, to the book he talked about yesterday, it is enough for him to leave a mark in the education world. The teaching materials and gestures have been very adequate. ?However, it must be admitted that this ticket was indeed sent to Chang Haonan''s heart. Thank you, Dean Tang. You really helped me solve a big problem. Our county happens to be closer to Jinxi. There was no need to be pretentious. He took the ticket directly and thanked him solemnly. It doesnt matter, you are a very valuable asset to our college, and it is our responsibility as administrators to provide a comfortable and safe environment for talents like you. ??Tang Lintian stood up and spoke in a clear and concise manner: "Okay, the ticket has been delivered to you, so I won''t stay any longer. You can also have a good rest. There is no need to go out to deliver it." Even though he said that, Chang Haonan still sent the person to the entrance of the corridor. When you succeed, you will find that you are surrounded by good people. When he returned home, he looked at the premium soft sleeper ticket in his hand, and for the first time he had a profound understanding of this sentence. In his previous life, Chang Haonan studied for a Ph.D. in Beijing Airlines and stayed there for a total of 12 years. In fact, he did not have a deep impression of Dean Tang. Basically, they were two people who lived in the same space but had no intersection at all. Including the entire college level, there is actually no sense of existence. ?Mediocre, ordinary, fulfilling the obligation to educate a student, there is nothing to criticize. ?Originally, a doctorate degree looks rare outside, but it is just like that in universities, especially universities at the level of Beijing Airlines. ??But throughout his life, both the college and the dean himself, as well as famous bosses such as Du Yishan, Yang Fenghao, Yan Zhongcheng, Lu Yuying, and Yang Wei, all showed extraordinary kindness and even love to him. There are many among them who had not received very good reviews before he was reborn. It''s not that they are different in this new timeline. But Chang Haonan himself has become different. (End of this chapter) Chapter 200 700MW hydropower unit Chapter 200 700 MW Hydropower Unit ?On the other side, Tang Lintian did not go home directly after leaving Chang Haonan''s residence, but went to his office in the college. He turned on the desk lamp, sat in front of the desk, and stared at a red-headed document on the table for a few seconds. The content is to require the School of Aeronautical Science and Engineering of Beijing University of Aeronautics and Astronautics to issue a resume about Chang Haonan, as well as a description of his work and study status. ??If that were the case, it wouldn''t be enough for Tang Lintian to run to the office without even bothering to eat dinner when the Chinese New Year was approaching. What really concerned him was the title of the document: Communist Youth League ZY and National Youth Federation. These are two organizations that do not have a strong presence, but have actual influence, especially within universities. The document does not include the reason for making the above request, nor does it explain whether it is possible or whether the person needs to be notified. ??However, Tang Lintian knew that if a person could make the two parties jointly issue a document asking for file inspection, he would either be making a big mistake, or he would be preparing to take off from the same spot. Considering Chang Haonans actual situation, the first possibility can almost be ignored. It was his own decision not to tell Chang Haonan about this for the time being. ?On the one hand, it is safer to do this. You can hold on to the news and wait until the future to inform you, but if you say it out, you can''t take it back. ?On the other hand, it can also make his previous solicitation behavior appear less utilitarian. I found a treasure... ?Tang Lintians hands trembled slightly. Even though it was not the first time he saw the contents of the document, he still couldn''t restrain his excitement when he thought about the possible consequences of this incident. So much so that I took several deep breaths to calm down. Then I took out a pen and college paper and began to consider the words word for word. The situation statement needs to be written by him, the dean, and then reviewed by the D committee at both levels of the school. ?This job should not be difficult, just say whatever you want and it will be done. ??With the huge energy of the two departments, it is impossible to investigate the situation only from the Beijing Hang University side. Carrying out small actions is completely a suicide attempt. ?However, Chang Haonans situation is quite special. ?Judging from the file, his academic performance in the past few years has been good, but not particularly amazing. Other than that, there is nothing worth mentioning. The information about competition and awards, student work, etc. are all blank. Compared to the amazing abilities he has shown in the past year, his previous life experience seems a bit too ordinary. After thinking for a moment, Tang Lintian wrote eight words of high emotional intelligence on the scratch paper. Extensive knowledge and apprehension, accumulation and accumulation. This is the tone of today. Of course Chang Haonan didn''t know that Dean Tang was losing his hair in order to write a beautiful statement for him. After getting the train ticket, he quickly packed his things, took a taxi and went straight to the Beijing Railway Station. Senior soft sleeper tickets can use special waiting rooms and entrances, which also saves a lot of trouble. Needless to say about the situation before his rebirth, after his rebirth, Chang Haonan basically travels by plane. For a place like the waiting hall where people are mixed, even if he has the awareness of precautions, he may not have the ability to take precautions. In short, he arrived at the No. 16 premium soft sleeper carriage on the ticket and found his own sleeper compartment. There was already a middle-aged man sitting inside who was reading a newspaper. Hello, comrade. ?The other party folded the newspaper and placed it on the table, and moved his body slightly to the side to make a space for his luggage: "Hello." ?Chang Haonan put the two bags he brought with him into the suitcase. Since the toilet of the high-end soft sleeper is located inside the box and occupies a certain amount of space, only one sofa can be placed opposite a group of bunk beds. "My waist is not good. I need a place to lean on when I sit for a long time. How about I sit on the sofa and leave the lower bunk to you?" This man looks familiar. "no problem." ?Chang Haonan sat directly on the bed opposite. You look quite young at your age. I wonder which unit your young comrade is employed in? He is indeed a talkative person. Fortunately, neither the tone nor the way of speaking are annoying. Since he wont be able to get there until tomorrow morning, Chang Haonan doesnt mind doing oral gymnastics. Its not a high-level job. How about you from Beijing Hang University? Although those who could sit in such a box these days had to have some status, they were not within the aviation industry system after all, so he just signed up for school vaguely. Shengjing Heavy Machinery Factory, oh, it should be called Shengjing Heavy Machinery Group now. I am the one who runs the business. My surname is Jin, and my name is Jingui. Gui means longan. What is your surname? Before he could react, the other party had already handed him his business card. ??The title written above is Director of the Supply and Marketing Department of Shengjing Heavy Machinery Factory. No wonder he is so good at talking. It is estimated that the company has just completed the group restructuring, and these things have not had time to be replaced. The noble surname is Chang, the ordinary one is Chang. ?Chang Haonan did not give his full name, but just accepted the other party''s business card. Shengjing Heavy Machinery Group later merged with another company to form Northern Heavy Industry Group, and he has a cousin who works here. In 2020, Northern Heavy Industries produced a 100% fully domestically produced shield boring machine for the first time, which is considered to be one of the relatively good transformation and development among the old state-owned enterprises in Northeast China. The two soon started chatting all over the world. ?Then the topic unsurprisingly turned to the business of Shengjing Heavy Machinery Group. This made Chang Haonan finally breathe a sigh of relief. ?Most of his work involves secrets, and there are too many things to talk about. If you really want to talk about it, you have to use your brain to make it up. Now it is better to focus on listening to what the other party has to say. At least if NHI has any confidential business, it must be very few. ?Jin Gui is indeed a good talker. From the time he started the train, he talked all the way to Qinhuangdao, but he didn''t let Chang Haonan interject a meaningful word. So when the former suddenly asked a question, he was even stunned for a moment. Teacher Chang, do you know that our country seems to have launched a precision engineering project recently? Seiko Project? Yes, I heard my colleague from Bingcheng Boiler Factory mention it before, but our group is not affiliated with the Science and Technology Commission and has no access at all. ?Jin Gui nodded, and then asked cautiously: I heard that Jinghang University is a school under the Committee of Science and Industry. I wonder if there is any chance to get involved? Have never participated. Chang Haonan shook his head without changing his expression, picked up a melon seed from the table, cracked it open, and threw the skin of the melon seed onto a piece of waste paper next to him: Our school doesnt do much research on processing and manufacturing. Maybe you can ask Bingcheng University of Technology? ?This is not a lie, because the title of general technical adviser still belongs to non-staff personnel for the time being. ?According to Ding Gaoheng, there is really no way to grant such high authority to someone with a high school degree. In any case, he has to wait until Chang Haonan obtains dual undergraduate certificates (graduation certificate and degree certificate) before becoming a full-time official. What a pity ?Jin Gui shook his head helplessly. Why do you ask this suddenly? ?The other persons question just aroused Chang Haonans curiosity. ? At the same time, he also realized that the Seiko Plan must be promoted as soon as possible, otherwise it would still be limited to only circulate among companies affiliated to the Science and Technology Commission and companies directly connected with the Science and Technology Commission. ?Equipment manufacturing companies like Shengjing Heavy Machinery Group not only need help from the Seiko Plan, but also contribute to the Seiko Plan. It is a pity that they cannot find ways to participate just because of divisions. "To be honest, we are cooperating with Bingcheng Turbine Factory to launch a satellite and build the first domestic 700-megawatt hydropower unit. We have solved many technical problems so far, but in terms of forging and cutting of large workpieces , the difference is still quite large. ?This was not considered a trade secret, so Jin Gui just told the whole story. Actually, there are not many people in the industry who know about this, but most of them are prepared to laugh at them. 700 megawatts ?Chang Haonans hand holding the melon seeds stopped in mid-air. At present, there is basically only one place that has demand for hydropower units of this kind of power. Three Gorges? I wonder if anyone can guess what award the protagonist will win? (End of this chapter) Chapter 201 Heavy duty hydraulic press required! Chapter 201 A heavy-duty hydraulic press is needed! Thats right, the Three Gorges. ?Jin Gui nodded: According to the plan, the current first phase of 14 units will be purchased from Germanys Voith and Siemens, the United States General Electric, Frances Alstom and Switzerlands ABB, and we will start to consider the digestion and absorption technology for the second batch. Localization. However, the factory still feels that this thing cannot just be waited for and depended on. The relationship between Big Brother and us at that time was very difficult. In the end, it was not the backer but the dependence on everyone, not to mention these foreign companies now. So we started trying to research some key technologies ourselves a few years ago. At first we just thought about doing pre-research, so that we can have some confidence when we bid for localization later. At least we wont follow others when they play tricks. A fool doesn''t know. " "But as we continued to do it, we found that except for the bearing part, which had no technical reserves and needed to be imported, we seemed to be able to try to do the rest ourselves. It just so happened that the factory''s performance in the past two years was good, so we approved a fund. The project is underway. After hearing this, Chang Haonan could not help but feel a little admiration: So thats it Bearings, especially ball and roller bearings, are indeed a long-standing problem for China. In the previous life, when Northern Heavy Industries built large-size shield machines, the main bearings were also the last to be manufactured by companies including Northern Heavy Industries, the Institute of Metallurgy of the Chinese Academy of Sciences, and Luoyang Xinqianglian. Several units cooperated to conquer it. ? So it was extremely difficult to make other parts of ultra-high-power hydropower units famous in the 1990s. ?Jin Gui, who was sitting opposite, continued: So far, the overall progress is pretty good, but the two areas just mentioned cannot be solved by a single factory. We need an overall plan from the superior department. Chang Haonan certainly knows that large forgings and machined parts are difficulties in the equipment manufacturing industry, but he is still prepared to hear more specific opinions from industry insiders. Is this difficult? ?? He knows how to bring up the following topics, not to mention that the person he is talking to is a person who has a strong desire to speak, so it doesn''t take much effort at all. ?But this time, the other party did not give an immediate answer like he had done in the past few hours. Instead, he lowered his head and pondered for a while, so that Chang Haonan thought that this question was more sensitive. Its a difficult, or rather, not entirely difficult problem. ?Jin Gui unscrewed the lid of the thermos cup and took a sip: "Since you are an airplane manufacturer, you should also understand that it is easiest to manufacture something of medium size. No matter you want to make it very large or very small, the difficulty is very high. For example, the Boeing 747 is definitely much more difficult to manufacture than the Y-5. " "The turbine end cover we are going to build, as well as the runner hub, the finished product is nearly a hundred tons in size. Especially the runner, because it has to directly bear the impact of water flow, the requirements for the strength of the hub are very high, and because When working in water, martensitic stainless steel must be used..." "In short, it cannot be manufactured through repeated processing like a blacksmith forging iron. It must be forged and formed with a large enough equipment in one go. This kind of equipment is very complex and involves many different disciplines and fields. It must be This can only be achieved by integrating resources from across the country through a department like the Ministry of Machinery Industry. ?Chang Haonan nodded clearly. ?In fact, it is just like the Nikolaev Shipyard cannot complete the Varyag aircraft carrier on its own. Fortunately, there are still objective conditions in China. Its just that research funds in various fields are not abundant nowadays. If you want to carry out such a project with high initial investment, you must come up with some sufficient reasons and go to the higher authorities for special approval. Big enoughhow big must it be? ?This problem is not that Chang Haonan is pretending to be stupid, but that he really wants to know more so that he can go to Ding Gaoheng for a project later: I see that aircraft manufacturers also use very large forging equipment to make parts such as landing gears. Isnt that enough? Jin Gui shook his head decisively: Its not enough. You should be talking about the 30,000-ton die forging press in our country, or another 12,000-ton free forging press. They are both single seedlings. Even though he is the director of the supply and marketing department, Jin Gui talks about these things as if he is familiar with them: "To put it into perspective, that 30,000-ton machine is already one of the 15 most powerful die forging presses in the world. Germany and the UK are only at the same level as us, but if you want to build the one we designed Wheel hub, its not even enough. ?Before Chang Haonan was born again, he had seen on the news that China had the world''s largest 80,000-ton die forging press, but he really didn''t expect that there would be a 30,000-ton press in the 1990s. Its not enough. If you want to create it, you must at least... He suddenly paused when he said this, and leaned back in his chair to think for a few seconds: It needs to be at least 50,000 tons. If we leave some margin, it would be safer to start with 60,000 tons. 60,000 tons Chang Haonan secretly wrote down this number, and at the same time he felt a little unsure. The later 80,000-ton die forging press was put into trial production only in 2013. ??As Jin Gui said just now, large-scale equipment involves too many fields, and the equipment manufacturing industry is an industry that requires a lot of accumulation. It would be difficult to replicate it under the current situation. Now we only have 30,000 tons, so this is a doubling. In the field of our aircraft, if the maximum take-off weight is doubled, the technical difficulty is quite great. The current foundation of our country..." Well...I cant be 100% sure. ?Jin Gui gently touched his chin: But I know that in the late 1980s, Qinghua University designed a 65,000-ton heavy-duty die forging press and had done a lot of production preparations, but it was stopped midway. "I''m not sure what the specific situation is, but at least related technologies, such as pressure cylinders, pressure storage cylinders, and drive motors, must have been pre-researched. In short, the technology in this area is definitely not blank, otherwise we would not be able to do it from the beginning. There wont be any ideas. This is definitely a huge surprise for Chang Haonan. The heavy-duty forging press can perform hot die forging and isothermal superplastic forming of difficult-to-form materials such as aluminum alloys, titanium alloys, high-temperature alloys, and tungsten powder alloys. Therefore, it is widely used and can be used in almost all industrial fields such as nuclear energy, petrochemicals, and shipbuilding. play a role. ??Of course, it also includes aerospace. ?For example, it is needed for the manufacturing of large aircraft landing gear, airframe load-bearing frame, landing gear, large rocket forging rings, etc. Once built, it can be used for tens or even hundreds of years. It will definitely serve the present generation and benefit the future. After getting the information he wanted, Chang Haonan calmly chatted with Jin Gui about other more relaxed topics, but his mind was already thinking about how to implement this big project. Although he has made considerable contributions in the past six months or so and has been registered as the director of the Committee of Science and Industry, such a big job that can be said to involve the entire manufacturing field, let alone It was him, not even Du Yishan, or even Ding Gaoheng himself, who could decide in one sentence. Among other things, feasibility studies and cost recovery cycles must be done. The only good news is that due to Chang Haonan''s personal influence, the current domestic large aircraft project should not die suddenly as McDonnell Douglas was acquired in the previous life, and the planned production model is also likely to be upgraded from the 70-ton MD90 to The 100-ton class in Figure 214. Therefore, after this heavy-duty forging press is built, it can be guaranteed to have continuous use, and it will not be left idle after making a few hydropower unit parts. But this is not enough. At least not enough insurance. (End of this chapter) Chapter 202 go home Chapter 202 Going Home ??Jin Gui didnt know Chang Haonans identity until he got off the bus the next morning. But the latter has secretly remembered the other party''s needs and will definitely give him a surprise in the future. In the 1990s, due to the lack of communication means, under normal circumstances, holidays were really holidays, rather than working from home. ?Chatting with Jin Gui on the train can only be regarded as an unexpected gain. Even if Chang Haonan wanted to do something right away, he couldn''t find enough people. So the original plan remains unchanged and we will continue to go home for the New Year. After struggling until the evening of the same day, he finally returned to his hometown A typical small northeastern county that has become somewhat dilapidated. Before rebirth, after Chang Yuanchao and Zhou Li retired, they moved to downtown Liucheng at the strong request of Chang Haonan and Chang Jiayao. In fact, if the two elders were not nostalgic and unwilling to go too far, the brother and sister originally planned to arrange for them to retire in Qiong Province, known as the fourth province in Northeast China. Including before his rebirth, Chang Haonan has actually not been back here for more than ten years. So much so that it even took him a while to find the right location after he got off the bus at the gate of the Family Courtyard of the Public Security Bureau. Since it has already passed the 23rd day of the twelfth lunar month, there is a New Year atmosphere both on the street and in the compound. ??I met several people who could call him by name on the road, but Chang Haonan really couldn''t remember any of them, so he had to pretend to be enthusiastic and deal with them casually. ?Standing at the door of the familiar yet unfamiliar Tongzi Tower, Chang Haonan was holding his luggage in his hands, but he was a little unable to move forward. He planned to sort out his emotions first. ?But before he could adjust, he heard a crisp voice coming from above his head: "elder brother-" ?Chang Haonan subconsciously raised his head and saw a head sticking out of a window on the third floor. He waved his hand towards the stairs. Even though its a bit unfamiliar, I can still recognize it. Its the way my sister looked in my memory when she was in high school. Chang Jiayao''s shouting dispelled her timid feeling of being close to home. ?As for my family, what are you thinking about so much? ?Chang Haonan strode in and went upstairs. ?The door of the house has been opened, and Chang Yuanchao is waiting at the stairs, wearing a green police uniform shirt with all the logos removed. Xiaonan. The father in front of me is less than 50 years old and in his prime. The father in my memory has gray hair and a much thinner figure. Chang Haonan took a deep breath to stop the soreness in the corners of his eyes. "dad." The two images gradually overlapped. He walked up and wanted to give her a gentle hug. ?However, Chang Yuanchao opposite him obviously couldn''t feel the mixed feelings in his son''s heart. He is a traditional father figure and is not very good at expressing his feelings for his children. Besides, for him, the separation between father and son was only a year. There is definitely something to miss, but it doesnt seem to be such an exaggeration. Hey, hey, you havent come back for the whole summer, whats going on? ?Chang Yuanchao stretched out his hand to block Chang Haonan, and took the travel bag carried by the latter with his other hand: Lets go, your mother has prepared the meal and is waiting for you to come back. ?Chang Haonan followed his father and walked into that small home, but full of warm memories. Xiaonan, change your clothes, wash your hands and eat. ??Zhou Li was wearing casual clothes. She put the two bowls in her hands on the table while greeting her. Inside is Chang Haonans favorite braised noodles. Chang Yuanchao followed closely behind and entered the house. After closing the door, he put the slippers he had prepared on the ground. ?At this time, Chang Jiayao also rushed out of the house and took the two bags together. Brother, you are finally back. Looking into his sister''s eyes, Chang Haonan knew that she still had half a sentence left to say: Did you bring me a gift? ?He nodded while changing his clothes: "Yes, I''m back. I brought you gifts, which are in my schoolbag." Chang Jiayao''s eyes lit up. ?However, she did not open the bag in her hand in the end. She is still acting like a spoiled child, but she still has basic manners. In the end, Chang Haonan took out the prepared gifts himself. Oh~ Chang Jiayao was obviously very satisfied with the airplane model in the box. You kid... dont spend your money randomly... ?Zhou Li, who took the gift box, was too honest and criticized spending money indiscriminately, but her face was full of smiles. ?However, when he saw the pen in his box and the watch that Chang Yuanchao took out at the same time, his expression suddenly froze: Xiao Nan, where did you get so much money? ?Although she works and lives in a small county town, Zhou Li still has some discernment. At least she can see that these things are not cheap. ?With Chang Haonan''s monthly living expenses, unless he really needs to drink northwest wind, he will definitely not be able to save so much money. ?In this era, although a few hundred yuan is no longer a huge amount of money, it is definitely not a small amount. Especially for a student. Scholarships issued by the school, as well as bonuses given to research groups for projects. ?Chang Haonan explained calmly. He did not lie. It was indeed a bonus given to the research team for the project. Its just not issued by the research team. ?In order to increase credibility and make Zhou Li completely relieved, Chang Haonan also took out an award certificate from his schoolbag. It is the Science and Technology Commission scholarship mentioned by Tang Lintian before, with a total of 1,000 yuan. ?Of course he can understand his mother''s reaction, which is that she is worried that she will take some evil ways to make money. Sure enough, after seeing the signature and seal on the certificate, Zhou Li immediately felt relieved. The son is ready to go out She muttered in a brisk tone while walking into the house and replacing the pen she had been using before. On the other side, although Chang Yuanchao had been silent, he had already put the watch on his wrist quickly, and began to think about how to make colleagues pay attention to the watch in a less deliberate way, and how to lead the conversation. Go to the source of the table... In fact, Chang Haonan originally considered buying a unit-style commercial house for his parents in the county town. ??Although this Tongzilou has many warm memories, it does not change the objective reality of poor living conditions. It''s fine for one or two people, but it''s really not a pleasant experience for a whole family of three or four to squeeze into an area of ??about 20 square meters. ?However, looking at the second elders reaction, he decided not to reveal the fact that he still had a huge sum of six figures in his bankbook Afraid of scaring them. Take your time. Fortunately, Chang Jiayao will also go to school in the second half of the year, so the family will be a little more relaxed. After collecting their gifts, the whole family sat together and started eating dinner. By the way, brother, I seemed to have seen you on the news before. Chang Jiayao looked at the news playing on the TV and said: Around the end of October, when I was reporting on the Shengjing Aircraft Manufacturing Factory, there was a figure from behind next to an airplane, who looked very much like you. Chang Haonan even took about two seconds to remember that it was during the full test flight of the J-8C. He touched the still hot skin after the plane landed. He was indeed quite surprised that his sister could recognize him from his back. ?However, Chang Haonan still had to maintain the consistency of his previous statement, so he still shook his head: Probably not, our research team is at the 603 Institute, which is Haojing, and is responsible for the domestic regional passenger aircraft project. "All right" Chang Jiayao, who did not get the answer she wanted, sounded a little disappointed, and seemed to be half-convinced about the explanation: I thought you designed that beautiful fighter jet. In fact, her guess is quite close to the facts. Im just saying, no matter how powerful your brother is, we cant let a student who hasnt graduated from a bachelors degree just touch an airplane. ?Chang Yuanchao had an expression of "I have guessed it a long time ago". ?Chang Jiayao opened her mouth and wanted to say something. ?At this moment, a piece of news attracted the attention of the two brothers and sisters: A passenger plane crashed while landing in the Alps. The specific cause of the crash is still under investigation. (End of this chapter) Chapter 203 Working on it (new folder) Chapter 203: Working on it (new folder) The accident occurred on an EMB120 manufactured by Embraer, a regional propeller airliner with a maximum passenger capacity of only 30 passengers. In most cases, an air disaster of this magnitude does not attract much attention. The aircraft of this era are not as reliable as they are in the 21st century. The aviation accident rate is still relatively high, especially for small propeller aircraft. On the other hand, as the 1990s was the era of the fastest development of the civil aviation industry in Europe and the United States, accidents tended to be handled in a low-key manner. ?But this time the situation is rather special. Because the plane was circling for landing, it first yawed, and then crashed directly into the airport in an almost vertical attitude. The crash site was only a few dozen meters away from another Airbus A340 taking off. . ? Nearly 400 passengers carried by the latter witnessed with their own eyes the entire process of their brush with death. And there are several flights that have just landed or are preparing to take off on the tarmac further away. So it became breaking news. The main focus of the media is that the plane''s final flight attitude was so strange. Is it possible that the captain did it deliberately and was aiming to hit the A340 on the runway? The world is not peaceful... Chang Yuanchao raised his head slightly and looked at the small TV screen: If this really happened, it would be unthinkable... As a policeman, he is very sensitive to such incidents that may lead to heavy casualties. Especially when it comes to aviation safety. ?There are two children in the family, one is already building an airplane, and the other wants to fly an airplane. ? Even if you have never flown in an airplane in your life, or even seen an airplane up close, parents will always pay more attention to the industry in which their children are engaged. As he spoke, Chang Yuanchao glanced at Chang Jiayao opposite with a slightly worried look. As for the latter''s desire to be a pilot, although neither of them raised any objections due to Chang Haonan''s insinuations during that period, it would be absolutely false to say that they were not worried. Zhou Li next to her also showed a complicated expression: Alas...what is this for? Although in Chang Haonan''s view, it is obviously too early to draw conclusions about the cause of the accident, in this era where everyone is relatively simple and has not experienced the infinite reversal of the self-media era, subconsciously, the first Treat the news you hear as fact. Its not necessarily the pilots intention. Chang Haonan shook his head and quietly changed the topic from the report about the J-8C to the news content being broadcast in front of him: "It is still difficult to investigate this kind of accident. In many cases, it takes months or even years. This happened last night. I am afraid that even the post-accident handling work has not been completed yet." Cant? Chang Yuan, who was holding chopsticks in his hand, stopped and said: Isnt it just on the news that they were considering the possibility of a terrorist attack? However, Chang Jiayao was not biased by the reports: My brother studies airplanes. You still cant believe what he says? Chang Yuanchao choked back with one sentence. He has never been able to do anything about his daughter. "Dad, think about it, even when you investigate a case, you have to investigate it for a long time when the case is complicated. After the plane crashed, almost nothing was left, so it is even more troublesome to investigate. , it will take some time just to find the fragments and restore the flight status during the last period. Chang Haonan used examples that his father was familiar with, and lamented that people in this era generally have a... How to say it? The beauty of innocence that has not been bombarded by information in the Internet age. Chang Yuanchao, who was left speechless by a pair of children, had no choice but to lower his head to eat, and at the same time whispered to himself: "Then this report is really irresponsible. We don''t dare to say who is the criminal before we solve the case..." The speaker is unintentional, but the listener is intentional. ?This sentence made Chang Haonan think of a lot of things. In the timeline before his rebirth, China was indeed developing well in the fields of economy, science, technology and military affairs. But the media, or the field of publicity The performance is indeed not satisfactory. Especially in the first ten years of the 21st century, there were all sorts of things that were confusing black and white, and some media were almost obviously paid to smear their own countries, which caused a very bad social impact. Of course, we also created a series of famous jokes about the rounder moon in foreign countries such as the American domineering little passport and the German conscience sewer, which eventually became a joke. But if possible, Chang Haonan would rather these memes not appear. Although people later talked about the Tomb Sects public intellectuals with a mocking attitude, only those who have experienced that era know how terrifyingly lethal this group of people was. ? It wasnt until about 2015 that self-media gradually emerged, and it was only through a large number of patriotic creators who were initially called self-organized five that the situation was somewhat restored. But its just that we can keep the last propaganda front and wont lose it. ?This question made Chang Haonan a little lost in thought. He remained silent until after dinner, when he was pulled out of his thoughts by Chang Yuanchao''s words. Xiao Nan, go down for a walk? ?Chang Haonan glanced out the window at the completely dark sky and the icy and snowy environment. Now? At night...almost eight oclock? Chang Yuan subconsciously touched the watch on his left wrist with his right hand, feeling that it was indeed a bit excessive. ?Of course the more critical issue is that its so dark outside now that you really cant meet any acquaintances. Forget it, Im going to uncle Qi Xias house to sit there. I havent played chess with him for a long time After saying that, he took off his coat from the hanger at the door, put it on himself, opened the door and walked out. The only advantage of a Tongzi building, especially one that is like a family building for a work unit, is that the neighbors are familiar with each other, so it is very convenient to stop by to relieve boredom. Of course, from another perspective, entertainment methods in this era are really scarce. ?Twenty years later, retired Chang Yuanchao and Zhou Li quickly reduced the frequency of finding people to play chess and square dance after learning to play a certain sound. Sitting on the bed in the living room, Chang Haonan looked around at the dilapidated house in front of him. With the pitiful area of ??the Tongzi Building, it was already the limit to create two bedrooms and one living room between the walls. Therefore, after they became too old to sleep with their sister, Chang Yuanchao and his wife set up a bunk bed in the living room and separated the two bedrooms. Gave it to two children respectively. ?At this time, Zhou Li was washing dishes in the kitchen. Chang Jiayao was playing with the airplane model in the room. ?From the moment he walked into the house, Chang Haonan''s mind has not stopped. He was either chatting or thinking about things. ?Now that I feel relaxed, I was even a little at a loss for a while. ?There is a TV series that I dont know what it is playing on the TV, but Chang Haonan, who has returned from rebirth, is not in the habit of watching TV. And the clarity of the 14-inch fluorescent tube screen is really annoying. After thinking about it, he sadly discovered that I can only work overtime. ??The content of the two unit textbooks that Tang Lintian was promised to Tang Lintian has not yet been written. ?So Chang Haonan took out the laptop from his travel bag, plugged it in, and turned it on. After thinking for a moment, he first created a new blank document, right-clicked and renamed: In this way, the most important part of a project is completed Create a new folder. Then he got stuck. (End of this chapter) Chapter 204 Challenge the MiG-25! Chapter 204 Challenge the MiG-25! The reason for getting stuck is also very simple. Writing textbooks is different from writing a paper. ??He cannot assume that readers are all industry insiders with a certain academic foundation and go straight to the point after a brief abstract and introduction. Just like now, if he wants to talk about computational simulation, he must first talk about what computational simulation is and how to carry out computational simulation. In short, when Ms. Zhou Li walked out of the kitchen after washing the dishes, she saw her precious son staring blankly at a shiny screen. Xiaonan? The mothers voice finally made Chang Haonan react: "Um?" You are ?Zhou Li walked to the bed and looked at the machine in front of Chang Haonan with curiosity. A computer? Its so small? Thanks to the countrys emphasis on education, most middle schools already had computer rooms and (at least on paper) computer courses in the 1990s, so Zhou Li, as a teacher, has naturally seen computers. ? Its just that laptops are still a new gadget for most Chinese people in this era. Well, yes, its called a laptop. My instructor gave it to me to facilitate my work. ?Chang Haonan looked away from the screen and looked at his mother not far away. Anyway, I worked overtime just now because I had nothing to do. Now that I have no ideas, I might as well give it up for now. ?Zhou Lis attention did not stay on the computer for a long time, but she looked like she was hesitant to speak: Xiao Nan, mom has something to ask you. You said. ?Chang Haonan sat slightly on the edge of the bed and made room for his mother. You specialize in aircraft, then... Halfway through speaking, Zhou Li turned her head and glanced at Chang Jiayao''s bedroom door: Tell me the truth, is being a pilot dangerous? ?Perhaps because of the news that night, she was obviously worried about Chang Jiayao''s choice again: "Your dad has been a policeman for most of his life. To be honest, every time he is on duty, although he knows that there is not much going on in this small county, he still feels a little worried." Now that he is old enough and has transferred to an administrative position, he no longer has to work, and Jia Yao is going to be a pilot again. This Looking at his worried mother, Chang Haonan didn''t know how to answer this question for a moment. He cannot deceive the other party that piloting is a safe profession. But he doesnt want to worry his parents too much or destroy Chang Jiayaos dream. After the phone call shortly after she was reborn, the brother and sister talked about this matter several times. Chang Haonan was very sure that his sister was not acting on a whim. Whether he wants to get out of the shadow of his older brother, or he really likes it, or he yearns for flying. In short, Chang Jiayao is indeed preparing very seriously. Even arranged a daily exercise plan for myself. Mom, nothing is absolutely safe. ?After being silent for a long time, he managed to organize his words. The first thing to do is to stabilize Zhou Li''s mood: Based on our countrys current policy, we will not arrange for female pilots to fly fighter jets. Zhou Li''s complexion improved slightly. ?Although she doesnt know much about airplanes, even if she only reads the news, she can probably tell that those small airplanes that move violently are more dangerous than the large, steady airplanes. "If you are just flying a passenger plane or a transport plane, the safety factor is generally very high. Think about it, if it were so easy to get into trouble, no one would be willing to travel by plane. But in recent years, the number of civil aviation passengers has been increasing. Its a lot. Chang Haonan slightly changed the concept. There is still some difference between military transport aircraft and civilian transport aircraft. ?But thats not important. The plane that crashed in the news just now Sure enough, its still because of this. Its because there are few air accidents that its on the news. ?In this case, Chang Haonan had no choice but to resort to sophistry. In order to prevent Zhou Li from having time to think clearly, he quickly continued his analysis seriously: Although the cause of the accident is still uncertain, there are only a few reasons why the plane crashed at the airport. ?Chang Haonan stretched out a finger: Either the pilot did it on purpose, as the news speculated, but it has nothing to do with flight safety. In this case, flying ones own plane is more secure than flying. ??The half-joking tone made Zhou Li''s mouth corners rise slightly. "Either it is a mechanical failure, such as engine shutdown, which is related to ground inspection. Our domestic airlines are much more serious about this than foreigners, and there is nothing to worry about." ? ? ? "Or there is another possibility: external conditions. , such as ice on the wings. When Chang Haonan said this, his heart suddenly thumped. ??The crash situation of this EMB120 does seem a bit like a certain Y-8 in the previous life... ?But now he didnt have time to think about it, so he quickly continued: It just so happens that I study passenger aircraft flight safety. In this regard, our countrys level is much higher than that of Europe. Hearing what Chang Haonan said, Zhou Li''s eyes widened in surprise. ?Since the 1980s, a large number of products and cultures from developed countries in Europe and the United States have been imported in an almost barbaric and out-of-control manner, which has had a huge impact on China. One of the most intuitive effects is that the Chinese people have gradually lost confidence. And it is all-round and subtle. ?Even a teacher from a small county like Zhou Li cannot avoid it. ?When she heard that China''s research level was higher than that of Europe, even if this sentence was said by her own son, her first reaction was disbelief. Are we? Better than Europe? Of course. ??In any case, the worried look on Zhou Li''s face has faded a lot, so Chang Haonan naturally strikes while the iron is hot: This is the direction your son and I are researching. I dont dare to talk about it in other fields. When it comes to dealing with ice on the wings, if we take second place, no one dares to take first place! At the same time that Chang Haonan was dispelling Zhou Li''s concerns about the occupational risks of pilots at home. Kashmir, Skardu Airport. Two fighter jets with slender bodies appeared on the horizon with the roar of getting closer and closer. The lighting lights on the landing gear and the red left and right green wing lights indicate that they are descending to the desired height and have lowered the landing gear and are ready for landing. The landing lights on the airport runway have also been turned on. A few minutes later, the two planes landed on two runways of 3,600 meters and 2,600 meters respectively. After the plane came to a stop, the ground staff who had been on standby for a long time rushed up with auxiliary vehicles and dragged the two planes into the reinforced aircraft castle at the end of the runway as quickly as possible. With the bright lights inside the aircraft fort, one can recognize that these are two of the four J-8Cs that the 1st Air Division just received at the beginning of the year. ? ? A group of soldiers with East Asian faces quickly began various inspections after landing, and took off a total of 8 PL-11 air-to-air missiles hanging under the wings for maintenance. ?Another group of ground staff, generally bearded, pulled up the gangway and were ready to repaint the aircraft. ?Zheng Liangqun and Chen Jialiang climbed out of the cockpit with some difficulty. The two of them are the deputy division commander and chief of staff of the 1st Kong Division respectively. They have been stationed in Tibet Province for a week before. In fact, in terms of age, they are no longer suitable for toiling in plateau airports for a long time. ??But there is no way. The J-8C is originally a new equipment, and there are not many pilots who can drive it skillfully and use semi-active radar bombs. And the training level of the Chinese Air Force in the mid-1990s is hard to describe. Even basic night flight training can only be carried out by a small number of backbone aviation regiments under the leadership of regimental commanders. So after sifting through the process, we couldn''t find any young pilots who met the requirements, so we had to let two veterans take over. As for why they drove fighter jets all the way to this strange land just before the Chinese New Year. Naturally, it is in response to the three-sonic squadron that has become increasingly rampant in recent months and has repeatedly penetrated the airspace of the two countries for reconnaissance and retreated unscathed. ?After being locked by the surface-to-air missile array during their first reconnaissance, they optimized their flight route and chose to avoid the fixedly deployed Hongqi 2B A missile array. ?As a result, the only anti-aircraft missile with theoretical interception possibility has lost its effect. ?However, the previous rounds of failed attempts were not without success. At least they allowed the Pakistan Air Force to roughly grasp the activity patterns of the opponent''s reconnaissance aircraft. One of the most important ones is For some unknown reason, the top speed of those MiG-25s seems to be limited, so they usually choose 2.2 times the speed of sound and an altitude of 23,000 meters to cut in from the direction of northern Afghanistan, and then maintain level flight until they turn eastward near Jammu and return. Of course, for aircraft such as Mirage 3 or F16A, knowing this information is meaningless. They have no means to shoot down the opponent. ??Except for Sami taking a photo during the first interception, they could only see the contrail clouds left by each other in the subsequent times. ??However, after the J-8C was delivered to the Chinese Air Force for trial use, the situation was different. ??Although the J-8C only flew above the ceiling of 22,500 meters during test flights, it will further drop to about 21,000 meters after loading bombs. ??However, the Pili 11 missile, which is semi-active radar guided and has a head-on attack range of about 30 kilometers, still gives the opportunity for ambush and interception. (End of this chapter) Chapter 205 Hunting flying foxes Chapter 205 Hunting flying foxes Although the long flight and altitude sickness made Zheng Liangqun and Chen Jialiang a little tired, it was not time to rest yet. Since this plan is highly confidential, the relevant combat plans are completely formulated within the Skardu base by senior staff members. All documents related to the plan content are prohibited from being taken out of the base. No personnel can learn about it until they arrive at the Skardu base. All contents of the plan cannot be left until the combat operation is completed. Even the two pilots who performed the mission only knew roughly the purpose of their visit, but did not know the specific details of the plan. So they had to go to a briefing first and meet with the Pakistani Air Force pilots who were also involved in this operation and were responsible for cooperating. Fortunately, the other party''s ground staff thoughtfully arranged vehicles so that they no longer had to walk a long distance. ?In a conference room in the underground control center of Skardu Airport, a dozen ground commanders wearing military uniforms from both countries sat face to face on both sides of a long conference table. "Report!" With a crisp command, the two Chinese pilots appeared at the door of the conference room, stood at attention, and raised their hands to salute everyone in the room. After everyone arrived, the combat meeting began quickly. ?A Pakistani Air Force Brigadier stood up, took out a thick stack of documents from his briefcase, and then distributed one copy in front of everyone in order. ??Although it is bilingual in Chinese and English, the translation quality is indeed somewhat difficult to describe. Zheng Liangqun and Chen Jialiang both learned English on the fly after receiving this mission. Two middle-aged men in their 40s spent their lives chewing words day and night, which means they can understand some of the simplest words. Command password. Fortunately, the brigadier general then stood on the podium and began to give a detailed introduction to a large-scale map. The two people put on the headphones in front of them, and the voice of the Chinese translator came from inside. At its core, the plan is not complex. ?Although the missile launch site of the Hongqi 2A is difficult to move easily, its new fire control radar improved from the SNR-75 Fange actually only requires a trailer and a power supply truck to be taken away. The MiG-25 of the Triple Sonic Squadron is the oldest MiG-25RBK. It is not equipped with a radar and has not undergone subsequent upgrades. Its radar warning receiver (RWR) can only sense that it has been locked, but cannot know whether there is a missile. Even if it is launched, the ground radar located east of the Military Demarcation Line cannot see the situation of the Hindu Kush Mountains beyond the high mountains. So the pilot is almost blind in the cockpit. ??As long as the fire control radar is set up in the middle of the MiG-25''s new route, the opponent can make the opponent think that a new anti-aircraft missile site has appeared here, and thus make one more turn to avoid possible interception shots. ?According to previous experiences, due to some unknown reasons, the Indian Army''s MiG-25 will lose very serious speed during the turn. This is the opportunity for two J-8Cs. ?Of course, this is easier said than done. Since the air forces of the two countries do not have joint command capabilities or common data links, they need to rely on voice guidance. The J-8C and MiG-25 fly at more than twice the speed of sound almost the entire time. By reporting coordinates by voice, the aircraft can Traveling a few kilometers away, the range of the airborne radar is relatively narrow, so it is easy to miss the target. To this end, the Pakistan Air Force has designed an extremely complex airspace division table. Two pilots can put it in a transparent sleeve on their thighs before taking off. When the time comes, the ground only needs to report an airspace division table consisting of two letters and one Arabic numeral. The code is enough. ?Of course there are other parts of the combat plan that are used to deceive the enemy, but this part will be completed entirely by Pakistan and has nothing to do with China. There is no need for any nonsense in the combat meeting. It will be over after everything that needs to be said is said. What was finally determined was the operation code name. Very straightforward OperationKilltheFoxbat. Chinese, bat hunting operation. ??Chen Jialiang put away the combat plan that was handed to him, stood up and prepared to meet the Pakistani colleagues who were cooperating with them. ?However, Zheng Liangqun next to him was still sitting there, frowning and staring at the papers in front of him. Old Zheng? Old Zheng? After calling twice in a row, he finally reacted. Why are you so dazed here? You are too tired today? Chen Jialiang''s tone was full of concern. ? High-altitude flying is actually quite costly for pilots, especially since the Chinese Air Force lacks experience in this area, and pilots are especially required to recharge their batteries. Thats not the case. Zheng Liangqun, who had lowered his head and said nothing just now, shook his head: I just think this plan is a bit... too complicated. "We have conducted high-altitude and high-speed performance tests before. With two Thunderbolt 11s, it is enough to fly to 21,000 meters and Mach 2.2. In fact, we only need to lay ambushes on its previous routes, power on, lock and launch the missiles in the shortest time. Thats fine, theres absolutely no need to resort to such tricks. Is this... Hearing what the deputy division commander said, Chen Jialiang also felt a little strange: "I think it may not be entirely due to technical reasons. For a mission like this, as long as you participate in it, you will make a contribution, and you will not be able to get away with receiving awards for meritorious service. I am afraid that the surface-to-air missile troops and aviation forces on the Pakistani side are not willing to just be spectators, right? " Besides, this is an extra layer of insurance, and it can make it easier for the two of us and save us two hours of flying time. Double 21 is an altitude of 21,000 meters and a speed of Mach 2.1. This was an indicator that could only be achieved on paper in the past. After receiving the J-8C some time ago, their division achieved it for the first time in combat status. How to say ?Zheng Liangqun is still a little hesitant: Their plan feels to me like the nine-stage taper of the Japanese Navy during World War II. In many places, they bet on the enemy to act according to their own ideas. "But the reality is not the Romance of the Three Kingdoms. There is no such scheming Zhuge Liang, so the plan should be concise and concise. If it is too complicated... it can easily lead to problems." I didnt expect you have research on the navy? ??Chen Jialiang smiled and patted his old comrade on the shoulder and said comfortingly: This kind of thing is not something you and I can decide. We can only make all preparations and strive to be foolproof at the execution level. Thats what you said. We should make a list of possible unexpected situations when we get to the residence later At this time, a colonel wearing a Pakistan Air Force flight uniform came over with an interpreter and interrupted their discussion: Hello, two Chinese friends who have come from afar. Speaking, he first saluted them. The deputy division commander and division chief of staff both hold the rank of colonel, equivalent to brigadier general, so naturally the other party salutes first. "Hello." The two men immediately stood up and returned the courtesy. Badra Islam, the commander of the 9th Squadron, will... cooperate with you in the battle. ?This sentence has lost its tone after a translation, but even if you don''t understand English, you can still hear some embarrassment in his words. The participation of the Chinese Air Force in the battle is naturally top secret and cannot be disclosed. Therefore, if the MiG-25 is really shot down, a Pakistani pilot will be needed to claim the result. Obviously, this colonel named Islam is the super lucky person who was selected. If all goes well, he will only need to take off the plane, fly according to the route, fire two missiles and then land, and he will be able to receive the highest medal. ?But this has nothing to do with the two Chinese Air Force pilots. Zheng Liangqun and Chen Jialiang quickly started a conversation with Islam, and the content was naturally inseparable from the air battle. ??For the Chinese Air Force, which has had no combat experience for many years, it is a very valuable opportunity to come into contact with foreign military colleagues who have actually participated in air combat. ?The four of them left the underground control center all the way, got in the car and headed to the pilot dormitory on the other side of the airport. ?When passing the reinforced machine fort on the road, Islam signaled the driver to slow down, rolled down the window at the same time, stuck his head out and stared at the two J-8Cs that were removing the Chinese Air Force emblem for a long time. (End of this chapter) Chapter 206 J-8C, first victory! Chapter 206 J-8C, the first victory! I specially found the video tape and watched the flight performance of this kind of aircraft at the Xiangzhou Air Show. Islam, who shrank back, rubbed his cheeks that were a little stiff due to the cold wind and said: I thought that video had special effects, it was so... unforgettable. ?This somewhat sudden compliment made the two Chinese pilots sitting in the third row of seats at a loss as to how to respond. ??The trip abroad was urgent, and the superiors did not specifically emphasize confidentiality discipline, so they did not know whether they could discuss the detailed aircraft performance with friendly pilots. ?? Chen Jialiang gave a somewhat stiff answer: Its really good. We just had our first flight training. I was shocked when I pulled the stick at low altitude. So its really an interceptor, right? ?Perhaps worried about some ambiguity, Islam added another sentence after the translation: I mean, generally speaking, the range of advantages of aircraft performance is relatively limited, especially it is difficult to take into account both high-speed and low-speed segments at the same time. ?This sentence posed another problem for the two people behind. Chen Jialiang''s face was almost frozen. Well... we have very good aircraft designers in China. They have optimized low altitude and low speed while ensuring the interception performance of the aircraft. You can rest assured. At the same time, thousands of kilometers away, Chang Haonan, who was about to go to sleep, suddenly sneezed for no reason. After everything was ready for the bat hunting operation, it didnt take long to wait. Thursday, February 6, 1997, the 29th day of the twelfth lunar month, the Chinese New Years Eve. The MiG-25 of the Triple Sonic Squadron is here again. The radar station at an altitude of 5,374 meters captured the target as soon as the other side took off, and then reported it to the Skardu base through the newly established communication mechanism between the two countries. After all, it was my first time and I was not very proficient, so it still took a little time. ?But its not a big problem. ?Zheng Liangqun and Chen Jialiang, who had already put on full flight suits and were on standby, climbed into the cockpit as quickly as possible after receiving the order. The pre-flight inspection had already been completed by the Aviation Industry Group staff who came with them. The Chinese ground staff wearing Pakistani military uniforms nearby had also undergone intensive training and quickly evacuated the power supply vehicle and air supply vehicle after waiting for the engine to start. Everything went in an orderly manner. About five minutes later, almost at the ground radar station, it was reported that the MiG-25 was turning in the airspace of Afghanistan and preparing to enter the airspace of Pakistan. At the same time, the two pure white paints were painted with only 01 and 02 low-visibility paint on the fuselage surface. The degree-numbered J-8C aircraft lifted off the ground lightly. In order to ensure better flight performance, Zheng Liangqun specifically requested that each aircraft carry only two PILETS 11 when taking off. ?According to his opinion, the difficulty of shooting down the MiG-25 mainly lies in overcoming the speed and altitude. Therefore, if four missiles cannot hit the target, then four more missiles will not work. It is better to remove some loads so that the aircraft can fly higher. ?According to the plan previously formulated by Pakistan, the two planes quickly flew into the scheduled interception airspace and waited for the next order. Griffin team, the target has crossed the Hindu Kush Mountains, and the estimated time of contact with the enemy is 140 seconds later. ??A brief command in English came over the radio. In this operation, two J-8Cs will be disguised as Islam''s 9th Squadron aircraft, so the code name was also changed to "Griffin" of the 9th Squadron. Griffin 01 (02) received. The two of them answered almost simultaneously, turning on the radar at the same time, preparing for interception operations. Everything seems to be going according to the original plan. 20 seconds later, the fire control radar that had temporarily changed its deployment position captured the target. In the operations cabin, Captain Arshad Khan switched the radar to tracking mode. He almost caused a catastrophe last time and decided to wash away his shame this time. However Five seconds later, the radar that had completed locking suddenly lost its target. ??The captain was startled into a cold sweat and quickly switched back to the search mode. After discovering the target, he locked it again. After another 5 seconds, the radar lost the target again. ?Arshad felt that he was about to faint. He quickly picked up the phone and reported the situation to the command center. "Calambar cannot track the target! Repeat, Calambar cannot track the target!" ??The originally relaxed atmosphere in the command center suddenly became tense. ?The two J-8Cs also received the information subsequently. Since the fire control radar could not lock the target, the MiG-25 did not change its direction, but continued to fly at the original altitude and speed. ?This piece of English was not among the predetermined command commands. Zheng Liangqun only understood a few words in it, but from the urgent tone on the radio, he knew that what he was worried about was coming. Report target position and prepare for interception. While speaking, Zheng Liangqun had already pushed the throttle valve directly to the maximum afterburner state. Those tricks are really unreliable. In the end, we still have to compete for height and speed. ?He thought in his heart. Fortunately, the radar station did not panic and quickly reported the new target position. ??160 seconds after receiving the first interception command, two aircraft finally appeared in front of the MiG-25. It was 20 seconds later than the expected enemy contact time, and the direction was not directly opposite. ?But there is still a chance. At a distance of 20 kilometers from the target, Zheng Liangqun changed the fire control radar from search mode to tracking. The response speed of the 1472 radar is very fast. According to past experience of target shooting, within a few seconds, the words "approved to launch" will appear on the HUD. ?However, the radars of both aircraft also lost their targets a few seconds later. "Um?" Zheng Liangqun, who was almost about to pull the trigger of missile launch, was dazed for a moment. The wingman also reported the same situation, the target would be lost after a few seconds of locking. Fxxk Zheng Liangqun subconsciously said the only word he had ever learned to express strong emotions. At this time, his plane had reached a speed of Mach 2.3, which was slightly faster than the MiG-25, and a slightly lower altitude of 21,500 meters. However, if he waited for a while, he would miss the most advantageous angle. I can try a jump and try using the cannon. ??Chen Jialiang proposed a somewhat crazy plan. After all, the difference in height is only more than 500 meters, so theoretically it is possible to compete. ?The only problem is that a power jump is not a normal way of flying, and in addition, the gun must be fired during the flight, which may cause the aircraft to crash and kill people. No, we have another way. A somewhat unfamiliar voice appeared on the radio, and it took Zheng Liangqun about half a second to identify it as a radar engineer from the 14th Institute of Electrical Engineering. Since the J-8C is still in the trial stage, in addition to ground staff, many technical personnel from the factory were also brought in this time. Under the multi-function display, which should be the second from the right, there is a button labeled anti-drying. Press it and try it. Since it has only been a month since the aircraft was installed, even Zheng Liangqun, who is the backbone of the trial, has not tested all the functions of the aircraft. ?But he did it anyway. Then try to lock the target again. ?At this time, the two J-8Cs were only about 16 kilometers away from the target, but they were about to enter a tail pursuit state. Fortunately, the radar tracking status is stable. A few seconds passed without losing the target. The words "Permission to launch" appear on the HUD. ?As the two pilots pulled the triggers, two Thunderbolt 11 rounds were shot out from the launcher, dragging thick smoke and flames. The huge initial speed given by the carrier aircraft allowed them to quickly accelerate to Mach 4.7, which was faster than the paper data. At the same time, the pilot Major Palak Chopra sitting in the cabin of the MiG-25 was no longer as calm as before. ?The pod he carried on this mission was the latest improved pod of the US military. In addition to the same reconnaissance function as before, it can also perform adaptive azimuth interference on the fire control radar. Simply put, electromagnetic waves can be deceived through side-lobe interference, allowing the radar to lock on a false target in the wrong direction. ?Of course, this kind of target cannot exist stably like a real aircraft, so the opponent''s radar will soon lose its lock and will not launch missiles at false targets foolishly. But its enough. Just now he had relied on this function to avoid being locked by two radars. ?However, the constant sound of alarms in the cabin now clearly reminded him that the plane had been locked. ??And the signal source is located at the three o''clock direction at the same height as yourself. Chopras first thought was: Do they have a plane that can fly so high? ? He ??knew all the equipment of the Pakistan Air Force very well, and it was absolutely impossible for him to have anything that could fly to an altitude of 20,000 meters. The second thought is: How did their radar get rid of the jamming so quickly? ?However, at this critical moment, he didn''t bother to think about anything more, and quickly followed the standard operation of avoiding air interception, turning towards 9 o''clock and lowering the altitude. ?The cockpit visibility of the MiG-25 was very poor, and he could not see what was behind the aircraft, but the RWR siren never stopped. Obviously the opponent not only has enough flying height, but can also keep up with him at speed. ?And he didn''t even know what it was that was following him to urge him to die. Fear gradually began to overwhelm Chopra''s sanity. As a MiG-25 pilot, he has never experienced such a life and death crisis. If hit Chopra knew that no ejection seat in the world could save a pilot''s life at Mach 2. Even the most advanced K36DM has a safe ejection limit of only Mach 1.5. He was afraid. ?At the last moment before being hit, the MiG-25 reduced its altitude and speed to a relatively safe level. Zheng Liangqun, who was following closely behind, saw the light of fire when the target was hit, and after flying over, he discovered that the opponent''s pilot had parachuted. "I think we can send a search team to see if the other pilot is still alive, and..." He turned his head and looked at the spinning and falling wreckage of the enemy plane: And the target finally reduced its height and speed, so the wreckage may be relatively complete. The command hall over the radio station was already filled with joy. After calming down a little, the leading major general of the Chinese Air Force found the engineer from the 14th Institute of Electrical Engineering who had just snatched the microphone from his hand. Xiao Guo, why is that button you asked Lao Zheng to press so powerful? The engineer named Xiao Guo was obviously very excited at this time, and he immediately started talking about it: This starts from a cybernetics paper we saw a few months ago... Chang Haonan, who was making dumplings with Zhou Li thousands of kilometers away, sneezed again for no reason. (End of this chapter) Chapter 207 Seize the jamming pod! Chapter 207 Seizing the jamming pod! What paper? ??The team leader patted the engineer named Guo Lin on the shoulder, trying to bring some authority into his tone, but the unstoppable smile on his face made his efforts in vain: Stop being so secretive and tell me quickly! Fortunately, the latter is not a light-hearted person, and he quickly gave a further explanation: That happened when we were working on the cooperation between Thunderbolt 11 and radar with the Second Bureau of Electromechanical Engineering. "One of the problems of Thunderbolt 11 in recent years is that the line-of-sight angular velocity signal extraction is not accurate. The farther away the missile is from the aircraft, the more serious the direct wave spurious signal is. The echo signal cannot be detected up to 20 kilometers away. Until the end of last year, At that time, a comrade from the Second Bureau saw an algorithm paper published in a foreign journal and used the theory in it to solve these two problems by updating the filtering method. " At that time, our 14th Institute discovered that for some specific deceptive active electronic interference, after multiple target echoes appear in the tracking gate, the filtering method can also be used to process the original echo and the new echo, and then By comparing the two processing results with the original memorized target motion data, the real target can be determined. The major general standing opposite was a little confused by the lot of proper nouns in this paragraph, but he was an Air Force officer after all, and he still had concepts about things like filtering and echo, so he understood it. Seven, seven, eight, eight. ?However, Guo Lin has obviously entered the state, and is even ready to challenge the team leader in front of him with more in-depth knowledge: The specific implementation principle is actually that the radar pulse repetition period is known. Under normal tracking conditions, when the radar is relatively close to the target, the target echo will be earlier than the echo of the previous period..." Okay, okayI already know that this model you mentioned is very powerful. The major general quickly raised his hand to interrupt: But since this mode can solve deceptive interference, why do we need to set a separate button? Wouldnt it be better to directly add it to the radars default working mode? Guo Lin, who was only halfway through his words, still had more to say, but after all, he was facing a general, so he stopped talking: Because turning on this mode will affect the response speed and refresh rate of the radar, it is best not to turn it on when there is no anti-drag interference. After hesitating for a moment, he added: "Actually... because there are very few studies on towing interference in China, and they are basically at the theoretical or laboratory stage at most, so although we have built this function, we have never had the opportunity to test it. Before this time, it was still not very Make sure it works..." "etc" Even though he had little understanding of the theoretical content of the other party, the major general leader quickly grasped the key points of this passage: The drag interference you mentioned is the reason why the radar lost its target after locking it for the first three times? The Chinese Air Force officers in the 1990s must have paid close attention to the Gulf War. In that war, both sides used a lot of electronic warfare capabilities. The coalition used electromagnetic interference to disable the Iraqi air defense system, and the Iraqi army in turn used electronic warfare equipment to resist the coalition''s precision-guided weapons, forcing the latter to dream. After returning to Annan, I had no choice but to resort to the old method of carpet bombing to solve the problem. So even though he was a little impatient with Guo Lin''s unfocused way of speaking just now, when he heard an electronic interference mode that "has not been studied much in China", he immediately became sensitive. I wasnt sure yet, but since the anti-drying mode works, it should be. Young engineers are still in the excitement. After all, it has been nearly 30 years since the last time the Chinese Air Force shot down a target in actual combat. It can be said to be a record-breaking first victory, and he himself unexpectedly played a key role in this process: "Current fire control radars basically use the Doppler effect to detect targets. This is a speed tracking system, and velocity gate drag jamming can give the radar false speed information, allowing the radar to track a false target. The radar field of view in the tracking state is very narrow, and it will naturally unlock within a few seconds. " ?This time his explanation was concise and concise. Did the MiG-25 have this capability at that time? ?The Major General was a little surprised that this complex-sounding thing would appear on an interceptor fuselage designed in the 1960s. ?This question really hits a blind spot. When everyone is busy celebrating, it is indeed easy to miss such details. So Guo Lin on the opposite side also hesitated: "I think... there shouldn''t be. Although the relevant theory emerged not too late, pulse Doppler radar was not widely used in the 1960s. There seemed to be no demand for it, and the level of electronic engineering did not support it. " At this time he also realized the problem. Is there another electronic warfare aircraft in the airspace? ?Such an unconventional guess left the team leader speechless. He waved his hand and was about to say something when he saw a Chinese officer wearing the uniform of a lieutenant of the Pakistan Air Force trotting over: The report from the Gryphon is that the target deliberately controlled its speed and altitude before being shot down, so the opponents pilot had parachuted out, and the aircraft was generally well preserved during the fall. Hearing this sentence, the two people who were chatting about the electromagnetic interference issue brightened up almost at the same time. Logically speaking, if the aircraft is hit by an air-to-air missile at 2.2 times the speed of sound, the aircraft will directly disintegrate at high altitude, and the resulting debris will probably fall within a radius of tens of thousands of square kilometers. Coupled with the fact that there are complex terrain and inaccessible mountainous areas nearby, it is simply impossible to completely search for the wreckage based on the organizational capabilities of the Israeli-Palestinian Army. ??Moreover, if too many people are involved, the news may be leaked. ??But if the target crashes as a whole, even if it falls into pieces after landing, the splash range will always be limited, and the manpower and material resources required will be much less. ??The major general straightened his somewhat ill-fitting military uniform and quickly made a decision: "This matter cannot be delayed. You should immediately inform Pakistan of the situation and ask them to send a reliable airborne force and helicopters over. Be careful not to let the news leak out, especially not to let their Inter-Services Intelligence Agency know." Also, if you find the pilot who parachuted, dont make it public. In that country I will report it domestically, but the situation is urgent now. If we delay it, it may only increase the number of variables. We can only cut it off first and report later. Hearing this decisive answer, the lieutenant was stunned for a moment, then stood at attention and saluted: "yes!" I think the questions we just had will be answered soon. The team leader looked at the lieutenants leaving figure, took two deep breaths in succession, and then turned to look at Guo Lin: If we finally find the kind ofjamming equipment you mentioned on the wreckage of that plane, is it possible to imitate the same equipment with our current technical capabilities in China? Then he may have felt that his request was a bit excessive, so he added another sentence: The functions are the same, but some requirements for specific performance can be relaxed. ??Guo Lin held his chin with one hand and lowered his head slightly, but his eyes that kept rolling proved that his brain was thinking rapidly. After about a few minutes, he finally answered: "Electronic components such as ADCs and FPGAs are actually off-the-shelf products that everyone uses, and the design and printing of PCB circuit boards are not a problem. In fact, what we lack in China is specific algorithm development and corresponding programming and Parameter debugging capabilities, even if there are samples, can only provide a certain reference value unless they are particularly complete. " Hearing the end, the team leaders mood dropped. He thought that this thing could be done in a relatively short time, just like the replicas of captured missiles and drones. ?However, the solemn atmosphere did not last long. But speaking of it, our countrys progress in this theory should be very rapid recently... ?Guo Lin seemed to suddenly remember something: After all, the influential paper I just mentioned was written by two Chinese people. Although interference and anti-interference are not exactly the same thing, there does not seem to be any commonality in algorithm research. So you can ask for foreign aid? The team leaders heart was filled with hope again. "I can''t guarantee it, but... I can try it after I return to China." ?Guo Lin felt a lot more relaxed when he thought of this: It just so happened that the 601 Institute asked us if we could build a larger radar and install it on the aircraft. Now the total power supply of the two turbojet 14s, 36kW, has been wasted. If we can get a set of jamming equipment, we can try to install it on it. (End of this chapter) Chapter 208 hello 1997 Chapter 208 Hello, 1997 ?Later that day, on the other side of the world, in Arlington County, Virginia. ?The new Defense Secretary William Cohen, who took office less than half a month ago, has just walked into the office and is preparing to handle some of the work left behind by his predecessor. For the past dozen years, he has served on the Intelligence Select Committee. ??Although it sounds like the name of an intelligence agency, it is actually a clerical position connected with a think tank. It has nothing to do with intelligence business, and it cannot even be regarded as a federal department. Of course, there is indeed a lot of oil and water in it. ?However, this also means that his previous experience cannot provide him with much help in his new position in the defense field, so he is still in a bit of a hurry. ??Cohen looked at the pile of documents and forms in front of him, feeling somewhat helplessly grateful that things had been calm recently and nothing particularly difficult had happened. ?However, before he could relax, there was a knock on the office door. "Come in." Without raising his head, Cohen thought that he might have found the document from somewhere. As the only member of the Elephant Party in the current Donkey Party government in the United States, he is not surprised that he has encountered some difficulties and obstructions. Some of the troubles were even pitfalls deliberately dug for him by his predecessor. Mr. Minister, this is an urgent message from the military attach in New Delhi. The secretary puts a document on his desk. Its an urgent call, its an urgent call again, why cant everything happen... ?Cohen muttered as he casually opened the folder. Then he took a long breath of air, and the temperature in the whole office seemed to be a little higher. Obviously, this time it was not someone deliberately trying to cause trouble for him, but something really happened. Contact General Shalikashvili, I want to meet with him. About half an hour later, a Caucasian officer wearing the rank of four-star general came to Cohen''s office. John Shalikashvili, 13th Chairman of the Joint Chiefs of Staff. General, I need an explanation. ?Cohen handed the document just now to the other party. At first, he was a little angry. In the 1990s, the United States had not yet gone crazy with the issue of identity, so in Cohen''s view, it was understandable that it would cause him some obstacles due to the donkey-elephant dispute, but making such big news in order to exclude him was a bit outrageous. Line. ?But soon, he discovered that the admiral sitting opposite also had a look of astonishment on his face, and seemed to know no more than he did. I cant explain anything, Mr. Minister. ?The gray-haired John handed the document back to Cohen: "If my guess is correct, this should be an action carried out by Langley, but...something happened, so our military attache will know." Then the two of them were silent together. How could the Air Force not know about this kind of professional aviation reconnaissance equipment? About a minute later, Cohen asked with some distress. Mr. Secretary, you know that the CIA has extensive intelligence authority. Shalikashvili shook his head helplessly: Many reconnaissance equipment, such as this pod and even U2S reconnaissance aircraft, are their assets. The Air Force only operates them on their behalf. There is no need and of course no authority to conduct terminal management. ? ?Cohen threw the folder onto the desktop with a snap: Then this matter Leave it alone. The admiral shook his head: This matter has nothing to do with us. If they get involved, if anything happens in the future, they may blame it on our military. "But according to what this document says, the pod they lost seems to be very advanced. Does it really matter?" Cohn, who has just taken office, is still a little worried. Whether it is advanced or not is something Langley should consider, Mr. Minister. The Chairman of the Joint Chiefs of Staff still insisted on his opinion: In addition, it said that the pod was hung under a MiG-25, and that plane was suspected to have been shot down. "So there is nothing to worry about. Although I am from the Army, I also know that high-altitude and high-speed aircraft will disintegrate directly after being hit, breaking into thousands of pieces. From the airborne equipment to the pilot, it is impossible to leave anything behind. The whole thing." Besides, to put it another way, Langley also has internal connections with the Inter-Services Intelligence Agency, which is better than ours. ??Cohen looked down at the document and frowned. He was not impressed by the third reason given by the other party. Even if the so-called insider relationship exists, I am afraid it is no longer useful for some reasons. Otherwise, why bother with aerial reconnaissance? But the first two statements are quite reasonable. Well, youre right, General. The new minister thought of all the troubles his colleagues had caused for him in the past half month, and finally decided to listen to the opinions of professionals and ignore the matter. ??The turmoil in the South Asian subcontinent is destined to only affect a small number of people. For the vast majority of Chinese people, the most important thing today is obviously the New Year. Chang Haonan, who was at home, did not know that he had been targeted by the electronic industry system. At this time, he was sitting around with his family, making dumplings and watching TV. ??The Spring Festival Gala of this era is still relatively eye-catching. In addition, since he was reborn, he has basically been working intensively, so he is happy to idle his mind for a while and only occasionally answer some questions raised by his sister. ??At this time, a sketch called "The Dark Willow and the Bright Flower" started to be played on Kung Fu TV. ?Chang Haonan suddenly felt that his past memories began to attack him. Because this is a short story about blind date. ?Of course, the theme must still be the story of spring. But the scene that cant be resisted is a blind date. As expected, when she was halfway through, Zhou Li stopped what she was doing and turned her head to look at Chang Haonan. Xiao Nan, you will be 23 years old after the Chinese New Year. In the Northeast, this era is generally said to be empty. Mom, my 22nd birthday hasnt even passed yet ?Chang Haonan replied helplessly. ?No matter what others think, he has lived his whole life again, and he only feels that he is so **** young now. 23 is really not a big deal, but its time to think about my girlfriend. As expected, Zhou Lis topic still ended here: We are not in that era now. We can get married as soon as our parents ask us to meet each other. Why cant you date a girl for several years after you meet her? It just so happens that the daughter of our neighbor when we lived in a bungalow... ?Chang Jiayao was beside her with her head down and laughing. ?Chang Haonan was speechless. ??He completely couldn''t understand how the relationship between neighbors in the past could be maintained for so many years. ?But before Chang Haonan could figure out how to politely refuse, Chang Yuanchao, who had been concentrating on making dumplings just now, raised his head in astonishment: You mean the daughter of Lao Hes family? Yes, whats wrong? Zhou Li looked at her husband with some confusion, as if she was wondering why he reacted this way. Lao Hes family is going to Fujian Province to work with relatives during the Chinese New Year, didnt you know? ?This time it was Zhou Li''s turn to look shocked: I dont know, I met Lao Hes wife a few days ago. Chang Yuanchao shook his head: Lao He and his wife have decided to be laid off during the restructuring of their factory, and her daughter cant find a good job here, so were just going to go south as a family. ??Zhou Li took a long time to recover from the shock: "Lao He''s wife didn''t tell me this. She specifically asked us about Xiaonan''s situation. I thought she wanted to bring the two families together." Chang Yuanchaos expression changed after hearing this. As a policeman, he immediately understood the other party''s plan. "Lao He''s wife... is not good. We cannot marry her." ?Zhou Li also turned around later and realized that the other party wanted to tie up Chang Haonan and stopped mentioning the blind date. Chang Haonan, on the other hand, never thought about agreeing in the first place, so he had no feelings about this matter. Its just that, for the first time, he intuitively felt the impact of the layoff wave. For a family, it may mean leaving their hometown. The fireworks outside the window went off. The year 1997 is coming soon. (End of this chapter) Chapter 209 Arrange a special flight! Chapter 209 Arrange a special flight! ?The first New Year after Chang Haonan''s rebirth passed in such a dull atmosphere. Originally, he planned to stay at home for the Lantern Festival before returning to school. But the current situation does not allow him to be offline for such a long time. After all, with greater ability comes greater responsibility. There are too many places where Chang Haonans help is needed. On the evening of the third day of the Lunar New Year, when the family was watching TV after dinner, the phone suddenly rang. The person who answered the phone was Zhou Li. Hello, who is this? ?At first, Chang Haonan didn''t care. After all, the person who called home was basically either a relative or a colleague looking for Chang Yuanchao or Zhou Li. No one he knew knew his home number. ?However, the mothers next words made Chang Haonans breath hitch: Yes, Chang Haonan is here. More than nine months later, this familiar feeling is back! It smells like working overtime! Sure enough, after a few seconds, Zhou Li said again: Then Ill give him the phone, please wait a moment. Then she covered the microphone with her hand and looked at Chang Haonan on the sofa: Xiaonan, there is a man named Yi Yuanhe, who said that he is an engineer at Haojing 603 Institute of Aviation Industry, and he wants to see you if there is something urgent. ?Chang Haonan nodded with a complicated expression and stood up to take the phone. Mr. Yi, Happy New Year. Happy New Year, Comrade Xiao Chang. ?Yi Yuanhe''s voice on the other end of the phone was also a little embarrassed. After all, even if calculated based on their working days, the third day of the Lunar New Year is only half of the holiday. What''s more, Chang Haonan is still a student and enjoys the winter vacation at school. Im really sorry that I have to disturb you during the Chinese New Year... Mr. Yi, lets not talk to each other. Chang Haonan replied with a wry smile: If it wasnt something urgent, I guess you wouldnt go to all the trouble to find my home phone number, right? ?He just vaguely remembered that before entering freshman year, there would be a home phone number when filling out the file. ?However, this requires checking the files to find out. In addition, it is still the Spring Festival holiday, and the school''s administrative staff should not be at work. It must be quite troublesome to check the files. Thank you, Comrade Xiao Chang, for your understanding. It is indeed urgent, regarding the anti-icing system and airworthiness certification standards we have done before. Well Hearing this, Chang Haonan suddenly had a guess in his mind. ?This incident is probably related to the plane crash I saw the day I just returned home Because from the perspective of investigation, of course there are many possibilities that could cause the air crash. But if the ice accumulation problem is really taken as the starting point, the characteristics of the accident are actually very consistent with the situation where the ice thickness on the wing exceeds the threshold during landing, and the anti-icing system does not work properly, causing one side of the wing to lose lift. At the moment, the MA60 is in full swing and the 603 and 172 factories are preparing to enter this model into the European market. Obviously, they will take this suspected ice accident very seriously. ??The only thing that made him a little confused was that China was generally a country where ice damage was not serious. The poor record of Yun 8 was simply because the original design was really bad. ?Furthermore, the MA-60 is still far from being finalized, and it has already conducted test flights under four types of ice damage conditions before. This matter does not seem to be urgent these days. ?But in any case, even if the MA-60 is not a confidential project, talking about too many technical issues on the phone is obviously not a good choice. So, what exactly do you need me to do? Chang Haonan goes straight to the point. The Science and Technology Commission will arrange a flight from Liucheng to Haojing tomorrow. We will discuss it in detail after you come over. Yi Yuanhe is obviously not prepared to talk too much at this time. "division" ?Chang Haonan was a little surprised, and those three words almost blurted out. ? The Science and Technology Commission is not the leading party in the MA-60 model itself. It allows them to specially use resources to arrange the aircraft, which shows that there may be more things behind it. This made the remaining resentment in Chang Haonan''s heart turn into curiosity and expectation. Okay, lets see you tomorrow. After Chang Haonan finished speaking, he hung up the phone. Xiao Nan, is there something going on at school? ?Zhou Li, who was standing behind her, asked cautiously. Ah, yes, there is an emergency at the project, and I was asked to go back tomorrow. Looking at his mother''s expression, Chang Haonan felt a little apologetic in his heart. After all, this time he returned home after a year, but he only stayed for less than a week. Chang Jiayao, who was still sitting on the bed just now, suddenly jumped out of bed and ran back to the house after hearing this. After returning from Chang Haonan, something happened to this little girl. She stayed in her room for a particularly long time. I think this is a good thing. Chang Yuanchao next to him looks at the problem from a different perspective: "Like when I was in criminal investigation, didn''t I often get called away during holidays or in the middle of the night? Now that I''m sitting on the bench as an in-house clerk, I feel at ease." "So calling Xiao Nan back at this time not only shows that the situation is indeed urgent, but also shows that they value him." "You''re still embarrassed to mention it in advance." ?Zhou Li turned back and glared at Chang Yuanchao: You were not even in the hospital when I gave birth to Xiaonan ? Feeling his wife''s resentment, the latter quickly grinned and retreated into the sofa. ?But those words just now clearly convinced Zhou Li. Chang Yuanchao, who is almost 50 years old, naturally thinks about ending his career safely, but Chang Haonan is only in his early twenties. It is when he is young and wants to work hard, so he really cannot let go of the opportunity he gets. If you leave tomorrow...then Ill buy you a ticket now. Are you going to the capital? ??Zhou Li said as she walked to the door and took off her coat from the hanger. No need to buy a ticket. ?Chang Haonan waved his hand to stop his mother who was about to go out: Time is very tight, I will fly directly tomorrow. ?Zhou Li, who was halfway through her clothes, stopped immediately: "Flying? Well...that must be quite expensive, right? Besides, it seems like planes to the capital don''t come every day." "It doesn''t matter, there will be... there will be a temporarily arranged flight, I will just take that flight when the time comes." ?Zhou Li was obviously stunned when she heard this explanation. Chang Yuanchao, who had just retracted, also sat up straight again and looked back at Chang Haonan, who was still standing next to the phone. The two of them had a bit of shock in their eyes. Certainly not because of flying. From their point of view, their sons are already designing airplanes, so flying is not much more than eating and drinking. The focus is on the temporary arrangement. Generally speaking, you have to pay for the travel expenses back to school yourself. ?Of course, this is after all, calling people away in the middle of the holiday, so it is reasonable for the superiors to be directly responsible for solving Chang Haonan''s itinerary problems. ??However, the couple who have worked in the system of a small county town for half their lives, the most they can think of is to reimburse their travel expenses. ?After all, it is still an afterthought. You have to pay for it yourself first, and then you can get the money when you get back with the ticket. The process is often not so smooth. ? ?Its not surprising that if you meet an inexperienced cashier or accountant, your card will be stuck for several months or even half a year. So Zhou Li was just making arrangements to buy tickets. But Chang Haonan told them directly this time There is a plane, and it is specially arranged for his itinerary. The old couple naturally have no concept of chartered flights. In their understanding, this is a private plane. What kind of person does it take to have a private plane? The couple actually dont know this issue clearly. ??But at least the biggest official they have ever come into contact with, the Secretary of Liucheng City, definitely does not have one. ?But the son in front of me is there. After a long time, Zhou Li hung the clothes back on the hangers, the shock in her expression still not completely gone. Your dad is right, Xiaonan, you are ready to make a career (End of this chapter) Chapter 210 A request for help from the European Aviation Safety Agency Chapter 210 Request for help from the European Aviation Safety Agency ?Chang Haonan spent one night packing his luggage. Zhou Li made dumplings overnight. It is a tradition in the north to get the dumplings on the car and the noodles on the end. Although I took a plane this time, the principle is still the same. The next morning, the three of them had breakfast at dawn Although the plane arranged by the Science and Technology Commission would obviously wait for him to board before taking off, Chang Haonan decided to leave early so that he could have an afternoon to understand the situation after arriving in Haojing. ?According to his speculation yesterday, it is obvious that the problem that needs to be solved by himself is not just the MA60 model. There is no harm in arriving early to give him more time to prepare. Pay attention to your health outside and dont be too tired. ??Zhou Li stood at the door and straightened Chang Haonan''s clothes, who had already put on his backpack. ?Compared with Chang Haonan''s memory of the previous times when he went home, it may be because he has proven himself now, so his parents'' instructions have nothing to do with study and work, and the focus is instead on topics such as paying attention to rest. ??Of course, find a girlfriend as soon as possible. At this time Chang Yuanchao also came forward, holding an envelope in his hand: Also, spend money where you should. If its not enough, just call home and your mother and I will remit the money to you Just from the thickness of the envelope, it can be seen that the money inside is much more than what I brought with me when I went out several times before. No need to pay, Dad. Chang Haonan did not accept it, but pushed the envelope back: We are paid for our projects, as well as project bonuses and scholarships, which are enough for me to spend on myself. "Hey, take these with you as well." In the end, Chang Haonan still couldn''t resist his father, and the latter stuffed the envelope into the inner pocket of his coat: If you had taken the train, we wouldnt have been able to bring you so much money, but it should be safe to take the plane. Poor families are rich, so its okay to bring more money. Click ?Just when Chang Haonan had picked up his travel bag and was about to go out, the door of the bedroom on the other side suddenly opened. Chang Jiayao walked out of the room a little shyly, with her hands behind her back. Jia Yao, Im leaving. You study hard at home and dont let your parents worry too much. Chang Haonan looked at his sister who lowered her head and said nothing and asked. Brother, I... Chang Jiayao, who had always lowered her head, walked to the door, suddenly stood on tiptoes, stretched out her hands and put a hat on Chang Haonan''s head. I knitted a woolen hat for you, um... I had a lot of work last night, so its a bit ugly, but... ?Chang Haonan touched the top of his head. Why are you a little moved? ?So before her sister finished speaking, she reached out and gently rubbed the other person''s head. Since it was given by you, I will definitely wear it no matter what. Chang Jiayao raised her head after hearing this and suddenly expressed her determination to Chang Haonan: Dont worry, brother, I will definitely get into flight school this year! Okay, I believe you. After saying goodbye to his family, Chang Haonan took a taxi and went straight to the airport. Sanyan Airport is a dual-use airport for military and civilian purposes, and this time he went directly to the military aviation side. The plane that came to pick him up was also a Challenger 601 belonging to United Air Force. This is a very rare business jet in China. It was bought back in the late 1980s and specially used for transporting VIPs. However, this main function was quickly replaced by the CRJ200 with better performance, so several Challenger 601s were often used to run short and medium-distance charter flights in the system. ?However, the decoration and configuration inside the aircraft still retained the previous style, which also gave Chang Haonan the experience of flying a business jet for the first time in his life. Among other things, since the cabin pressure of a small business jet can reach close to 1bar (standard atmospheric pressure), while the cabin pressure of an ordinary passenger aircraft is only about 0.7-0.8bar, after getting off the plane at Hokyong Airport, he could hardly feel the pain of the journey at all. Coming fatigue. Although I didnt care much about this because I was young, there is still a big gap between being able to hold on and not feeling it. MD, this thing is good ?Before Chang Haonan walked down the gangway, he looked back at the small plane and thought in his mind: When the conditions are met in the future, we will have to do the same in China. At the same time, a group of people and three cars were already waiting not far from the parking space. Among the people who came to pick up the plane, in addition to Yi Yuanhe and Zhou Yonghang, who were expected, there were also Liang Shaoxiu, who came from Factory 182, and had previously participated in the formulation of airworthiness standards for anti-icing capabilities and related test flights, and students from Golden State University. Lin Guofan and Zhu Lan, as well as a lieutenant general, were people Chang Haonan had never seen before. ?Judging from his position, he should be the leader of this team. Fortunately, when Chang Haonan approached, the thin general stretched out his hand first and introduced his identity: My name is Huai Guomo, deputy director of the Commission of Science, Technology and Industry for National Defense, in charge of foreign technical cooperation. "I have heard Director Ding mention your name many times before, saying that Comrade Chang Haonan has made an indelible contribution to the development of our country''s aviation industry, especially in terms of independence. Today I saw that he is indeed a young talent." ?This sudden rainbow fart actually made Chang Haonan himself a bit confused. To be reasonable, he should praise the other party in turn at this time, but the problem is that Chang Haonan has never heard of the name Huai Guomo before, so there is nothing to brag about. In the end, I had no choice but to praise the entire Science and Technology Commission: No, this is what we as Chinese technicians should do. Furthermore, without the strong support of the Science and Technology Commission, it would be impossible to achieve anything. ??After some pleasant greetings, everyone got on the Coaster minibus located in the middle of the motorcade. Director Huai, is calling me here this time related to the plane crash in the Alps a few years ago? ?Chang Haonan quickly got to the point. Thats right, you guessed it correctly. Huai Guomo, who was sitting in the front row, turned around and replied with approval: Although the number of victims in this air crash was small, the impact was very severe. Furthermore, during the subsequent rescue and disposal process, another A119 helicopter also had an accident at almost the same location. Fortunately, the height of the aircraft was not high, so the death toll was not increased. Is it because of the ice? ?Chang Haonan has basically confirmed his guess. An aircraft accident may also be caused by mechanical failure or human factors. The accident of two planes at almost the same location can only be caused by weather. Before the investigation report is released, it may not be rigorous to say this, but it should be the case. Professor Lin should be more professional in this regard. ? Lin Guofan on the other side took over the conversation: "The winter of 1996 to 1997 was a record-breaking cold winter, and the water vapor in the Alps was relatively abundant. So I speculate that the meteorological conditions, especially the content of supercooled droplets at near-earth altitudes, may far exceed the previous standards, and even It is possible that the current meteorological monitoring capabilities of many airports will be exceeded, resulting in underestimation of icing risks in route planning. Of course, the core problem is that the past certification standards for anti-icing and de-icing capabilities did not consider this situation, and were naturally not prepared to deal with it. ?This explanation is technically very reasonable and in line with Chang Haonans previous thoughts, so he nodded: The kinetic and thermodynamic properties of supercooled large droplets during collision and freezing are indeed different from ordinary water droplets. Actually, I personally think that the flight should be grounded under such weather conditions, but if the MA-60 is needed, the de-icing equipment can also be improved..." ?Before he finished speaking, he was interrupted by Huai Guomo: "Comrade Xiao Chang, I called you here this time not to continue to improve the MA-60, but because we have received a cooperation application from three parties: France Aerospace, Finmeccanica Group and the European Aviation Safety Agency. " "Oh, judging from the wording of their letter, it can also be directly understood as asking for help from us." "ah?" ?Chang Haonan didnt even react for a while: Will the Europeans lower their profile and come to us...to cooperate? (End of this chapter) Chapter 211 As expected of you, Chang Gong (209 Chapter 211 As expected of you, Chang Gong (Chapter 209 has been released) After a series of technical research and standard formulation started at the end of last year, China is now at the forefront of the world in the fields of ice accretion analysis and simulation, as well as anti-icing system design. There is no doubt about this. ?But Chang Haonan never expected that the arrogant old European people of the Ten-Three-Three-Star Banner would admit this in such a short period of time. Its so bizarre. ? This was the 1990s, when the idea of ??a great European union was at its peak. Not to mention China, the EU even dared to challenge the United States. ??The euro that is being prepared for issuance is one of the weapons that challenges the financial order of the U.S. dollar. ?In Chang Haonans impression in his previous life, these Europeans, especially Western Europeans, generally do not look back until they hit the wall. ?Only when you are desperate will you admit that others are better than you, and you will have to be tough-mouthed for a longer period of time. ?For example, some European countries have been building their own railways for more than ten years without making any progress, so they have to ask China Railway Construction to do the construction. At the same time, they do not forget to say a few nonsense words such as "affecting national security". ??The performance this time simply exceeded cognition. Ah, at the beginning, we were actually surprised. After all, in the past, we have seen how difficult it is for Europeans to deal with projects such as the J-7M. As the deputy director in charge of external technical cooperation, Huai Guomo can understand Chang Haonans shock: "But in the recent period, on the one hand, we have cooperated 50:50 with AgustaWestland on the MA-60 project, instead of simply introducing other people''s technology. On the other hand, we have also been involved in Boeing''s acquisition of McDonnell Douglas In terms of matters, we chose to side with Europe, which not only enhanced mutual trust, but also established a relatively long-term communication channel. This time can be regarded as the total harvest of the previous hard work. As for the specific situation, we will have to wait for a while to arrive at the place. Discussed in detail with people from Europe. At this time, Yi Yuanhe, who was sitting at the front and had been silent just now, suddenly said: Director Huai, these things you mentioned seem to have something to do with our Comrade Xiao Chang? The sudden words caused the whole car to fall into a brief silence, leaving only the sound of the engine and the hum of the wind outside the window. It seems...thats really what happened. Everyone has always known that Chang Haonan has done a lot of things in the past year, but because the business span he is involved in is so large, most of them are classified projects, and after all, he is just a rising star who suddenly broke out. It takes less than a year to produce results at a time, so no one does a systematic sorting out. But today, when Yi Yuanhe said this, the people in the car suddenly came to their senses. From the new wing that can almost be said to give the MA60 a new lease of life, to the overhaul of the turbojet 14, which led to the establishment of independent aviation standards during the test, to subsequent research on the aircraft''s anti-icing system, and at Boeing The acquisition of McDonnell Douglas, and even the entire development strategy of domestic large aircraft... One link after another, they are all connected! The connection between Chang Gong is quite good Liang Shaoxiu said in a half-joking tone. Wherever, some have caught up. Chang Haonan waved his hand: I can only say that this independent development route is suitable for our aviation industry, and I just pushed it at the right time. This is not modesty. When he was just reborn, he really didn''t think about such long-term things. He was just preparing to make some technological breakthroughs with the help of his own experience and the system. ??Its just that as more and more projects are involved, the impact has gradually accumulated. ?For example, when doing high-altitude platform testing in Fucheng, the original intention of Chang Haonan to propose the establishment of a new standard was mostly to make it easier for him to use the knowledge from his previous life. If it weren''t for a group of people who still persisted in the path of self-reliance even in the most difficult times, if it weren''t for Ding Gaoheng and others who immediately took it from the "Guidelines for Evaluating the Import Total Pressure Distortion of Aviation Turbojet and Turbofan Engines" If we seize the opportunity, this matter may be limited to aviation engine stability evaluation, or even limited to the turbojet 14 model itself. Of course, since that time, Chang Haonan has indeed begun to consciously focus on some key directions that will affect the overall aviation industry project. But as for the current matter, it has indeed been affected by many black swan events, so much so that Chang Haonan himself did not expect Europeans to lower their profile so quickly. You cant say that. Its Chang Gong who has raised our level in order to seize these opportunities. ?Zhu Lan, who was sitting next to Lin Guofan, gently smoothed the hair beside his ears, and then turned around and chimed in: For example, this time, if we hadnt conducted a natural freezing experiment with the Italian named Colombo last year, even if they were interested in foreign cooperation, they would have gone to the Russians at most and would not have been able to find us. These words are quite high level. ?Not only did she praise Chang Haonan along with others, she also emphasized her husband''s role in front of Huai Guomo without naming her. In short, it was another round of mutual appreciation. For a time, the carriage was filled with a happy air. ?Chang Haonan was a little embarrassed by the series of compliments. ?Some things can be mentioned inadvertently and let others know. However, if mentioned repeatedly, it will appear too deliberate. Besides, the two key figures, Ding Gaoheng and Du Yishan, knew what he was doing. This is enough. So he changed the subject following what Zhu Lan just said: Speaking of which, Professor Zhu just mentioned Rosie Colombo, does this matter have anything to do with him? Hearing this question, several other people in the car who had participated in the natural icing test flight all smiled. Finally, Liang Shaoxiu explained: "Chan Gong may not have paid attention to the situation here since he left. Our old friend Mr. Colombo was transferred to the parent company Finmeccanica after returning to China and is currently responsible for the international aviation cooperation business." He was also the first to propose this time that he could cooperate with us in anti-icing technology and airworthiness certification under natural icing weather conditions. No wonder it is so. Chang Haonan suddenly realized. In fact, factional struggles and conflicts are also very serious in large foreign companies. For example, after Colombo, who was born in AgustaWestland and was responsible for cooperation with China, took up the post of international cooperation in the parent company, he would naturally make the resources in his hands more inclined. The project I was responsible for in the past was the MA60. In this way, Colombo''s personal interests will be tied to China''s interests and become at least a relatively reliable ally. It''s just that in the 1990s, most management majors in China were still praising the seemingly lofty management concepts and complicated system construction of Western large companies, and there was not much research on these truly useful things. , and therefore suffered a lot of losses in terms of personnel rotation. It wasnt until around 2010 that I gradually came back to my senses and started to build a more systematic network of people. After thinking for a moment, Chang Haonan concluded: "In this case, I think we have to find a way to operate the Colombo line in the long term. It would be best to make his position there higher. It will be good for us." (End of this chapter) Chapter 212 You cant do it, we can do it! Chapter 212 You cant do it, but we can do it! Chang Gong, do you want to direct the personnel appointments of Finmeccanica Group? Liang Shaoxiu asked with a smile. Im serious. ?Chang Haonan answered in a very calm tone. ?Even the atmosphere in the carriage became serious, and everyone focused their attention on him again, ready to hear what he had to say: "For example, during the cooperation process, if he comes forward, we can consider making some concessions on non-core issues, and if it is someone else, we will insist on the conditions, so that when there is further cooperation in the future, We can also occupy some advantageous positions. "As for our old friend Colombo himself, because he was promoted and raised on the bonuses we gave him, his foundation lies in the cooperation project with China. When it comes time to choose a partner, he even If you only consider your own interests, you will tend to us, just like this time." After saying this, the people in the car basically had tacit expressions of understanding. ??Everyone is in a mixed system, so they naturally understand this routine. Even if they have never used it, they have at least seen it before. Its just that no one has thought of using the same method on foreigners in the past. Of course, from another perspective, the bargaining chips in China''s hands were really limited before, and there were no opportunities for true technical cooperation. The so-called "cooperation" was essentially exchanging money for technology, which was indeed not very promising. Have the initiative. Huai Guomo did not participate in the discussion just now. He just looked at Chang Haonan not far behind him from the corner of his eye. ?Before setting off on this trip, he had heard this name many times from his old superior Ding Gaoheng, as well as some things related to the latter. However, at that time, Huai Guomo paid more attention to Chang Haonan on the technical level, thinking that he should be an engineering genius. This time he specially invited the latter here because the upcoming negotiations involved a large number of Issues related to anti-icing and de-icing require professional attention. But after seeing the other person today, and after being reminded by Yi Yuanhe just now, he realized that although this student-like junior was young, his vision, or overall view, was very vicious, and his temperament was also very mature. It can be seen from Chang Haonan''s layout in the past year. As a technical genius who had little influence at first, he did not rush to express his determination and shout slogans as soon as he came up. Instead, he worked step by step, allowing his superiors to first see the possibility of independently developing an aviation industry system, and then when Boeing and McDonnell Douglas merged The necessity of this work has been proven. The subsequent development was a matter of course. Looking at it this way, it seems that the entire Science and Technology Commission is involved in his calculations... It wasnt until the convoy arrived at its destination that Huai Guomo, whose thinking had completely changed, ended his brainstorming. He came to a conclusion: Chang Haonan should also be involved in the negotiation process. After getting off the car, Huai Guomo immediately made this request to Chang Haonan. This is exactly the arrangement that Chang Haonan himself hoped for. The first round of negotiations was scheduled for the afternoon of that day. ?Chang Haonan temporarily borrowed a suit and followed the Chinese negotiating team at the back. ?The only person who had ever met him was Rosie Colombo, a representative of the Finmeccanica Group. Naturally, he would not focus too much on a person in the corner of the negotiating table. Besides, it doesnt matter if you are recognized. In technical cooperation negotiations, it is reasonable for me to bring a technical person with me, right? In short, this is how the first formal contact between the two parties began. Generally speaking, both sides do not expect to achieve any breakthrough results in the first round of negotiations. They mainly want to get familiar with each other and reveal some specific information. Sometimes some verbal quarrels will be added to establish the tone of the negotiation. Soon, Chang Haonan got and guessed a lot of the news he wanted from the few words expressed by the other party. Simply put, the core reason why Europeans are so easy to talk to this time is because of the pressure from the United States. ??The so-called pilot''s statement that the collision was intentional was completely a smoke bomb used to confuse the media. In fact, within a few days after the accident, investigators suspected that the ice on the wings was caused by weather factors. This is quite critical for the European aviation industry. ?About two years ago, in 1994, American Eagle Flight 4148 crashed near Chicago O''Hare International Airport while circling for landing in an attitude almost exactly the same as this accident. The accident model happened to be the Italian-French joint venture ATR72. The cause of the accident given by the FAA was that the average diameter of supercooled water droplets in the area at that time exceeded 100 microns, and the largest was even 2 millimeters, which far exceeded the standards and requirements related to icing and anti-icing in existing standards. ?Hence, the flight encountered sudden formation of supercooled clouds and water droplets during flight, resulting in a mixture of rough ice and clear ice on the fuselage. The expansion de-icing device on the ATR72 aircraft was completely incapable of dealing with this level of ice accumulation, but the pilot did not know this. Instead, he opened the **** according to the normal procedure and prepared to lower the nose of the aircraft for landing. The following plot is relatively close to those crashed Y8s in China. The aircraft, which was already close to its limit, lost its balance due to the action of lowering the **** and fell to the ground. Obviously, although there has not yet been a formal investigation report on the EMB120 air crash, considering that this aircraft, like the ATR42, uses expansion de-icing as the main de-icing method, I am afraid the results will be similar. This is where the FAA gets into trouble. Two air crashes caused by supercooled large water droplets (SLD) icing weather conditions occurred intensively within three years. Obviously, they can no longer be regarded as small-probability events. Therefore, the FAA proposed to update the part of its airworthiness certification standards related to anti-icing, which is Appendix C of FAR-25, to include the mixed icing conditions of freezing fog/rain and ice crystals & supercooled water droplets, which is 100 microns. Level droplet diameter certification content. ?At this time when public attention is extremely high, the reason for using aviation safety, a big stick full of accuracy, is naturally not just because the FAA has good intentions. ?As far as the field of aircraft ice accretion is concerned, whether in theory or engineering, Americans have always been far ahead of the world (at least before), relying on the advantageous climatic conditions of the Great Lakes region. As for the new conditions they proposed this time, European aviation companies would not have time to study them on their own. ? Even JAA (the predecessor of EASA) has difficulty in conducting independent review. Once the standard is passed, the entire European aviation industry will be subject to the FAA in this regard for at least a few years. The condition proposed by the United States is that if the EU can approve the merger of Boeing and McDonnell Douglas, they will suspend the proposal of this amendment. ? Faced with this kind of card-making game, the EU, which is still ambitious today, is naturally unwilling to give in. But there seems to be no good way to deal with it. Just when everyone was at a loss, Rosie Colombo, who had just been promoted to the parent company, told about his experience participating in the natural icing test flight, and said that China''s Golden State University has conducted in-depth research in this area and has even been able to Stably track qualified meteorological conditions and conduct airworthiness certification. Thats why this negotiation took place. The conditions proposed by the European representatives are that considering that both parties have the same interests in the Boeing-McDonnell Douglas merger, they hope that China''s CAAC can work with the JAA to delay the amendments proposed by the FAA and establish a joint laboratory. The ice accumulation situation and anti-icing methods of supercooled droplets with a diameter of 100 microns under climate conditions were studied. Chang Haonan laughed directly at Pu Chuoxin''s condition. ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ?? As for the conditions for joining forces to delay the FAA, they are fair, but also stupid. ?At present, the world''s attention on air crashes has not passed, and aviation safety is politically correct. Speaking the opposite at this time will undoubtedly have a negative impact on the public relations image. Of course, this is a negotiation scene after all, and it cannot be unorganized or undisciplined, so Chang Haonan wrote a note with his thoughts and handed it to Huai Guomo, who was sitting in the middle of his negotiating table, and quickly got a hint that he could speak. We believe that instead of delaying the revised standards proposed by the FAA, it is better to focus on anti-customers. Since they want to conduct research on the 100 micron level, we will get there in one step and directly propose to conduct anti-icing research and airworthiness certification under SLD climate conditions! ?Colombo across the street was stunned for a moment when he saw Chang Haonan''s face, and then his eyes widened suddenly as he apparently remembered his identity. SLD climate conditions? The representative sent by JAA is named Anne Valette. At this time, she is looking at Chang Haonan with a slight frown: The research object of SLD conditions is an order of magnitude higher, reaching the millimeter level. There is no technical reserve in this area. Have you ever considered how the FAA will respond if it is not scared back? Obviously, she thought Chang Haonan meant to bluff. However, it is not. Ms. Valette, strictly speaking, you dont have SLD-related technical reserves, but we do. ?Chang Haonan sat up straight and said slowly. (End of this chapter) Chapter 213 some little oriental shock Chapter 213 Some small Eastern shocks ?Chang Haonan''s loud words made the entire negotiation venue quiet down instantly. In fact, before this negotiation, the Chinese side did not know the specific reason why the European side suddenly came to cooperate, so there was no way to prepare in advance. It could only call in relevant technical personnel to show off their skills. So except for Huai Guomo, who had just seen the note, and Lin Guofan, who had participated in the research, everyone showed expressions of disbelief for a moment. ??People here in China dont know that they are so awesome. Even the recorders on both sides had trouble deciding how to record this content, so they had no choice but to raise their heads and look at the speaker who seemed to be "talking wildly". The European delegation on the opposite side quickly started discussing in whispers after a brief moment of silence. ?One of the old men with silver hair and glasses stared at Chang Haonan for a long time before he asked. Im sorry, I need to confirm again. When you talk about SLD conditions, do you mean supercooled droplets with millimeter-sized particles? ?This person also looks like a technician, mainly because his eyes really have the look of a mad scientist after seeing his research subject. Of course, and I can reveal some more precise information here. Chang Haonan, who had already expected to face similar questions, nodded almost without thinking and replied: Specifically, we have conducted theoretical and engineering studies on the phenomenon of large-scale droplets ranging from 400 microns to 1 mm in size impacting solid surfaces at high speeds. "The current results show that the icing mechanism of large-scale droplets is very different from that of ordinary droplets below 100 microns studied in the past. Some basic assumptions in the past, such as ''the water droplet impact process does not produce thermal motion'', do not work under SLD conditions. Therefore, it is necessary to create a new set of research methods and even a theoretical system. After hearing what Chang Haonan said, the white-haired old man obviously became more excited: Then what method did you use to explain the influence mechanism of typical critical ice shapes on changes in airfoil aerodynamic performance? In addition, from the perspective of airworthiness and safety, is there any method to evaluate the specific aerodynamic characteristics of airfoils after icing..." Ahem ?Before he finished asking a series of questions, he was interrupted by a light cough. It is simply outrageous that such a question could be asked at the negotiation site. ?Chang Haonan narrowed his eyes slightly and glanced at the name tag in front of the other party Fernando Lorenzo. Chang Haonan vaguely remembered that he had read a paper written by this person in his previous life, but he could not remember what it was about. "Mr. Lorenzo, I think I need to remind you that this is not an academic seminar, but a negotiation site. If you are really interested in these issues, then I will be happy to talk to you after an agreement between us is reached. Your technical staff share these research results. ??The few words just disclosed are just to convince the European delegation that China has really studied the SLD icing problem. Judging from the other party''s reaction, there is no doubt that the purpose has been achieved. ?Then of course he can''t reveal any more information. When Chang Haonan said this, Lorenzo also realized that the situation was not right and showed a somewhat embarrassed expression. ?However, as the delegation''s technical advisor, he did not have decision-making power, so he turned to look at Rosie Colombo and Anne Valette sitting in the middle with questioning eyes. Although Aerospace France and Airbus also sent representatives to participate in this negotiation, as peers and competitors of China Airlines to a certain extent, they were obviously not as good as Finmeccanica and JAA in this negotiation based on cooperation. The two people play a greater role, so these two people are considered the core members of the delegation. ?However, even for Colombo, who has participated in the entire MA-60 icing test, the amount of information he came into contact with tonight was indeed a bit too much. ??If what the Chinese said is true, then their research in the field of icing and anti-icing has even reached the front of the Americans. They had never thought about rebelling against General Yijun before, so they were naturally unprepared for the relevant negotiation conditions. ? And neither Colombo nor Valette are full-time technicians. They only have some understanding of SLD-related fields, and it is impossible to make an impromptu decision on the spot. So the two looked at each other and saw the same meaning in each other''s eyes. As for the idea just put forward by your delegation, we need to report it to the European headquarters, and we are unable to give an accurate answer for the time being. After being shocked by Chang Haonan''s blow to the head, Valette''s tone was no longer as sonorous and powerful as it was at the beginning. Her speech means that she is ready to end this round of negotiations. Considering that the things that both parties want to discuss are no longer on the same level, and China also needs to confirm some technical details with Chang Haonan and Lin Guofan, this is actually the only way out. Its just a matter of seeing which side cant hold back first in the end. It is naturally best for Europe to take the initiative now. So the first round of negotiations came to an end. Then naturally there will be a dinner party that has been arranged long ago. ??Although after determining the reason for the other party''s request for cooperation, Huai Guomo and others had many questions to consult with Chang Haonan and Lin Guofan, but they still had to complete the necessary procedures. During the dinner, in addition to his old acquaintance Colombo, Chang Haonan also chatted with Fernando Lorenzo and learned that the other person was a professor from the National School of Roads and Bridges in Paris, and his research direction was fracture mechanics and fluid mechanics. French universities are relatively casual in their naming. Although this National Road and Bridge School sounds like a junior college, it is actually one of the top 100 science and engineering universities in the world. In the 1990s, it was better than all schools in mainland China. The rankings are all high. Chang, have you, China, built an icing wind tunnel like NASAs? Lorenzo is obviously still very interested in the research Chang Haonan just mentioned. "Professor Lorenzo, icing wind tunnels like the Lewis Center are indeed important, but their main role is still focused on testing the aerodynamic characteristics of the airfoil after icing. The research we are currently conducting is more basic and is based on past experience. The process of cold droplets hitting the surface begins, deducing the entire process of ice formation. Chang Haonan held up the wine glass filled with white grape juice with one hand and made several gestures in the air with the other hand: "Limited by the current wind tunnel technology, the influencing parameters that can be obtained by the experiment, the scope of the experiment, and the versatility of the research methods are all limited. Therefore, in this field, we mainly rely on computational fluid dynamics technology for numerical analysis and key analysis. Conduct test flights under research conditions. Flight test directly after numerical calculation Lorenzo looked incredulous: Wouldnt that be very dangerous? Its really dangerous. What the old professor didnt expect was that Chang Haonan admitted this point directly: So we will first select the most reliable working conditions for test flight. After verifying that the simulation results within this range are OK, we will gradually increase the severity of the test flight environment. ?This series of answers are half true and false. Even if Lorenzo goes to Colombo later for verification, it is impossible to find out anything fishy. For example, they have actually only conducted test flights in a 100-micron level supercooled droplet environment before, but the theory that Chang Haonan and Lin Guofan worked out before can indeed predict the icing situation under SLD conditions more accurately, but it requires some analysis. Theories and hypotheses are adjusted. I didnt go on a test flight just because SLD actually has a very extreme climate, and its basically a once-in-a-century climate in China. It is not impossible to adapt the aircraft to such conditions, but it requires all-round efforts from airfoils to skin materials to anti-icing devices. The cost is extremely high and it also affects the performance of the aircraft. It is really better to strengthen the level of weather detection. Once this kind of weather is discovered, the flight will be immediately grounded - In fact, this is also the prevailing method in later generations. ??But now that the FAA is going to use SLD as a bargaining chip 15 years in advance, Chang Haonan doesn''t mind giving them a little Eastern shock. (End of this chapter) Chapter 214 Huaxia Aircraft goes to the world! Chapter 214: China Aircraft goes global! Lorenzo was obviously blindfolded and remained stunned in silence for a while before asking again: "In this case...how many flights do you have to fly to complete a research project?" You must know that the cost of test flights is much higher than that of a wind tunnel, not to mention that icing is not a 100% chance to seize every takeoff, and a large number of sorties will definitely be wasted. He thought he didn''t mean to look down on others. In fact, judging from what he had seen in the past few days, Huaxia should not be so rich and wealthy. It does require a lot, so as I said just now, we can only study 400 microns to 1 millimeter, and there are still many details that need to be further improved and excavated. Chang Haonan took a sip of grape juice without changing his expression: "If this negotiation can proceed smoothly, we can consider jointly building an icing test center like NASA. Of course, it is for SLD research after all, and the equipment must be more advanced. The results of the research will be shared by both parties. " Build together? ?Lorenzo on the opposite side felt that there might be a pitfall in this statement. Thats right, you provide the money and we provide the technology. ?Chang Haonan was not prepared to hide his purpose. In fact, if Ms. Valette had not just quickly proposed to suspend the negotiations, he would have planned to bring this matter up in one go today Give Fucheng an icing test wind tunnel for free. After all, Valette had just made a mistake with his mistake, and JAA had almost no technical reserves in the field of icing and anti-icing research under SLD conditions. Of course, she can''t be blamed for this. The original negotiation plan did not include this part that Chang Haonan improvised, which was equivalent to a sneak attack. But in any case, since the core technology needs to be provided by China, it is reasonable for you wealthy Europeans to provide some money to support some research hardware, right? "this" In fact, according to Lorenzo''s idea, if the Chinese people can really achieve the research level they claim to have in the research on the icing mechanism, this matter will be agreed to. ?But after all, he couldn''t make a decision, so he had to end the topic a little abruptly: This issue still has to be decided during the negotiation process between the two parties. Anyway, its a pleasure to meet you today, Professor Chang. After finishing speaking, he raised his wine glass and clinked the glasses with Chang Haonan. "You''re too anxious. I''m not a professor yet, I''m just...well, I''m studying for a doctorate, but I''d like to lend you some good advice." The latter replied with a chuckle. I saw the translator beside me relay this sentence to Lorenzo, and then the old professor who was drinking almost choked because of this sentence. After the dinner meeting, members of the Chinese delegation quickly returned to the hotel they had arranged and held a meeting overnight. Comrade Xiao Chang, none of you here have read the note you just wrote to me. Why dont you just talk about your thoughts? After a simple opening, Huai Guomo, as the host, directly raised the topic to Chang Haonan Comrades. ?Chang Haonan pulled the desktop microphone in front of him from the side: "In the past few years, although there have been differences between the European and American aviation industries, the common interests and demands are still greater than the contradictions. For a late-developing country like us, it is very difficult to break the situation, so this negotiation is a once-in-a-lifetime opportunity for us. opportunity. "Comrade Xiao Chang, I remember that you were opposed to in-depth technical cooperation with Europe at the beginning, not to mention that we still have the technical advantage in terms of icing and anti-icing."??????? This kind of unrecorded internal meeting does not have so many rules, so Someone in the venue quickly raised a question directly: So what can we gain from this collaboration? Or what do you think we should ask for? "Technical cooperation is of course not the core issue. If it can be achieved, let JAA pay for the construction of an icing wind tunnel for both parties. Of course, the location must be chosen domestically. It can also be regarded as adding to our aviation infrastructure. If it cannot be achieved, then it depends on us. Its not a problem for me, its just that Europeans may need us to help with design for a long time to come. ?Chang Haonan waved his hand and replied. When he said the last sentence, that is, the Europeans wanted to ask China for help in designing aircraft, everyone in the room smiled knowingly. No matter which result, it sounds so wonderful. ?But this is not over yet. After Chang Haonan paused for a few seconds, he said the next sentence: More importantly, I hope that through this negotiation we can achieve reciprocity and mutual recognition of civil aviation products between our CAAC and the European JAA. If this can be achieved, we can even consider making some concessions in specific technical aspects. The conference room, which had been noisy just now, suddenly fell silent. ? Several people who had just picked up their water glasses and were about to drink water subconsciously stopped. ?At this time, everyone finally knew why Huai Guomo agreed to Chang Haonan''s idea at the negotiation site that was somewhat radical and did not conform to the usual tone of negotiations on China''s side after receiving the note. ?This temptation is indeed too great. ? With AgustaWestlands investment and participation, it is almost certain that the MA-60 will have difficulty obtaining European airworthiness certification. But what Chang Haonan said is not a matter of two models at all. ?If the relevant agreement is indeed signed, then all aircraft manufactured by China in the future will be equivalent to passing the JAA''s certification as long as they pass its own airworthiness certification. It is extremely important for the development of the entire civil aviation industry. Although EASA has not yet been formally established, the influence and recognition of its predecessor JAA are also constantly increasing, and it has a tendency to rival the US FAA. For many countries that do not have independent certification capabilities, one aircraft has obtained European and American certification Aspect-certified aircraft will obviously be more acceptable. So this not only means that Chinas passenger aircraft will be able to enter the European market in the future. The Middle East and Southeast Asia are equally significant. Especially the former. Those airlines owned by the tycoons in the Middle East, such as Qatar Airways and Emirates Airline, are still in the development stage and have not received much attention from major aviation manufacturers. ??But these airlines are really good examples of the poor young people who have lived in Hedong for thirty years and Hexi for thirty years. Chang Haonan, who came back from more than 20 years ago, is very aware of the exaggerated scale they will develop in the future. ? Among other things, Emirates has the largest Airbus A380 fleet in the world, with 123 aircraft! ?This is the result of canceling a large order. The original plan was to buy 163 aircraft. Needless to say, the rest of the small planes are not to be mentioned, and the big investors dont even blink an eye when buying them. This is a market that makes people drool just by looking at it. (End of this chapter) Chapter 215 Cutting a hole in the airworthiness barrier Chapter 215: Making a Hole in the Airworthiness Barrier After receiving such heavy news, people need time to brew their emotions. So Chang Haonan deliberately remained silent for a little longer. He could even clearly hear the heavy breathing of the two people around him. Although people here still dont know how terrifying the aviation market will develop in the next twenty years, just thinking about it, the Chinese will one day be able to sell aircraft to Europe, it is enough to make these old people The military industry and old aviation industry are very excited. Even Huai Guomo, who had already understood Chang Haonan''s general thoughts through that note, felt his heartbeat slow down at this time. One second, two seconds As time gradually passed, Chang Haonan could see that more than one person wanted to speak. They have many questions to ask. But for a while no one could make a sound. In the end, it was Yi Yuanhe, an old comrade who had experienced great storms, who recovered first. ??Although he was also looking forward to the prospects described by Chang Haonan, he still forced himself to calm down quickly despite being well-informed. Because this kind of extremely wide-ranging thing is often countless times more complicated than brainstorming when it is actually started. Especially in this era, JAA is still an organization without mandatory binding force. Comrade Xiao Chang. Yi Yuanhe took a sip of water first to suppress the slight trembling caused by excitement: Promoting equivalence and mutual recognition of civil aviation products between China and Europe is a very complicated task, and to be fair, it has almost no benefit to them. Are you so sure that you can convince the other party in the negotiation? "Although I have not had much contact with people in the civil aviation system, I think the biggest bargaining chip in our hands should be the huge potential of China''s aviation market. But this card has been used against Boeing and McDonnell Douglas before. Now facing Europe, we only have Im afraid its hard to match them with ones own icing and anti-icing skills, right? ?Although this question seems to be throwing cold water on it, it is indeed the actual situation. It is not that other people are unaware of this fact, they are just too caught up in the short-term excitement to think about it in detail. Now that it was brought up by Yi Yuanhe, other members of the surrounding delegation gradually returned to reality. In the final analysis, Chinas own aviation industry is not developed enough. ??If you can build a mainline passenger aircraft that is sufficient for the domestic market entirely by yourself, you will be able to take the absolute initiative in this game without even having to perform very well. Unfortunately not. And this will not happen in a short time. A pair of eyes, either doubtful or expectant, focused on Chang Haonan. ?Seeing this situation, Huai Guomo, who was sitting in the main seat but only said one sentence at the beginning of the meeting, showed a somewhat playful smile. In fact, he had considered this issue when he saw the note. ?Originally, he should not have agreed to engage in such an extraneous matter. But the chat with everyone on the road made him finally make a different decision Since Chang Haonan has previously proven that he is not just doing things casually with a hammer and a stick, but has a systematic idea for the development of the aviation industry, then it is better to believe him! The worst case scenario is that the progress of the negotiations will return to zero. We have just talked about the first round, and it is acceptable even if we start over. Now, Huai Guomo looked at Chang Haonan next to him who looked like he had everything under control, and knew that he must have made the right bet. This young man is indeed thoughtful. Its just that, perhaps because the atmosphere was not in place yet, I didnt say it out loud. ?So he put down the teacup in his hand and took the initiative to give the other party a greeting: What Mr. Yi said is indeed a big issue, but I think Comrade Xiao Chang may have already considered it? Chang Haonan originally felt that the heat was almost over, and was about to explain, but he happened to take advantage of the **** given by Director Huai to come down: If we want Europe to completely liberalize, the current chips are really not enough. But I didnt say that we should achieve full reciprocity and mutual recognition in one step. Suddenly enlightened. You mean, we need to do it in stages? Someone asked. Yes, its like boiling a frog in warm water. ?Chang Haonan nodded confidently, and then analyzed methodically: "Main line aircraft such as the 737 and A320 are the lifeblood of the European aviation industry, and Airbus will be very sensitive to this level. If we directly talk about comprehensive reciprocity and mutual recognition, it will only irritate their nerves and make negotiations difficult. It will not be small, and it may even directly lead to the breakdown of the temporary alliance formed due to the McDonnell Douglas Boeing incident. This risk is too high and the gain outweighs the loss. "But we can do it step by step. What Europe is most worried about now is ATR. If the FAA questions the existing anti-icing standards or even the entire expansion deicing technology, then their flagship product ATR42/72 aircraft is likely to be It lost a large amount of market share in a short period of time and was occupied by Bombardier C-8 from the North American faction. ?At this point, someone has already understood what he meant: So in order to compete with North America, Europeans will not bite the bullet in the field of regional airliners? Thats right. Chang Haonan was in a good mood when he saw someone talking to him. He tapped the table with his fingers: Airbuss business does not involve regional aircraft. As for the remaining Fokker and BAE companies, they have long since passed away. As long as ATR is willing to make concessions, JAA has no reason to obstruct it. "We can use the maximum takeoff weight or the maximum number of passengers as a reference standard. This time we will first reach a mutual recognition of airworthiness certificates for small and medium-sized aircraft with 50 tons and less than 100 seats with JAA. As a price, we can provide ATR42/ 72 Aircraft independently designed an anti-icing system that can adapt to certain SLD conditions, and licensed a basic weather forecast and icing risk determination software to JAA for free, which is the one I developed together with Professor Lin Guofan. Wait...basic model? ? Lin Guofan, who was suddenly cueed, looked confused: Didnt we only make one version? Did you also secretly make an advanced version? Of course not ?Chang Haonan covered his face: "But they won''t know, they will just think that we have better ones, and Professor Lin is indeed iterating new algorithms and versions, right? Even if we borrow a high-end version, we will develop it later. Come out and pay it back. The conference room burst into laughter again. After all, the loan metaphor is apt. At this time, Huai Guomo ended the topic: Well, Comrade Xiao Chang has just introduced his ideas in detail. The old general swept the whole place with sharp eyes: "Although we are still only working on mutual recognition of small aircraft, everything is difficult at the beginning. This time is equivalent to tearing a hole in Europe. When we build larger aircraft in the future, we can talk to them about further adaptation. With mutual recognition between airlines, the difficulty should be much lower. So, I think, although there are certain risks and difficulties, it is still worth a try. With Huai Guomos endorsement and Chang Haonans persuasive explanation just now, the entire delegation naturally determined the direction of the next negotiations and unanimously approved the decision to appoint the latter as the temporary deputy leader of the delegation. When the voting results came out, a warm current surged in Chang Haonan''s heart. Its not that the temporary deputy head of the delegation is very important. It is a kind of passion. From Chang Haonan''s rebirth to now, he has indeed done a lot of things, changed many models, and even the fate of many people. But when it comes to the opportunity to directly reverse the history of the previous life, this is the first time! (End of this chapter) Chapter 216 If there are no conditions, create conditions! Chapter 216 If there are no conditions, create conditions! ?Those who have not experienced ARJ21 and C919 in the previous life will not know how much China has suffered in obtaining airworthiness certification. It does not mean that if you use the subsystems provided by Europe and the United States, others will give you a green light in terms of airworthiness certification. ? Airbus and Boeing are doing well in their monopoly business, so how can they easily allow a third company to participate? ?Although models that have not been approved by EASA and FAA will not be unsaleable, it is indeed very difficult to find large foreign customers. But the most regrettable thing is not that there was no opportunity from the beginning, but that there was an opportunity but failed to seize it. In fact, in the late 1990s, China had already established quite good relationships with airworthiness certification agencies in many European countries. It had the opportunity to make some breakthroughs while taking advantage of the process of reorganizing JAA into EASA. ?However, Chinas accumulation in the aviation industry in the previous life was indeed too weak, and it was unable to produce any practical technologies that Europe urgently needed like it does now. More importantly, in the original timeline, in the years at the turn of the century, the domestic civil aviation industry, including the entire CAAC, was in the midst of huge turmoil caused by the failure of the highly anticipated MD90 manufacturing project. , is wavering on whether to build domestically produced passenger aircraft, what kind of domestically produced passenger aircraft, and whether to move closer to FAA or EASA standards. In the end, this time window was completely missed. After passing this village, there is no such shop. By the time the domestic passenger aircraft project, which was pushed by many parties, finally came to fruition, EASA had long since stabilized and established airworthiness barriers similar to those of the FAA, leaving no room for outsiders to operate. Now, due to Chang Haonans own intentional or unintentional operations in the past few months, as well as the occurrence of a series of black swan events, an opportunity to solve this hidden danger from the source has appeared in front of him. Must succeed! After the general direction and basic ideas are determined, the only thing left is the specific work. I judge that judging from the current situation, the European side should be tempted by Comrade Xiao Changs idea of ??focusing on guests during the last negotiation. Huai Guomo opened the minutes of the first negotiation in front of him and analyzed the crowd: But they will definitely have concerns, especially about our technical level in the field of icing and anti-icing, which is the core of the entire plan and a part that Europe has absolutely no control over. Chang Haonan has naturally considered this issue. So after Huai Guomo finished speaking, he took over the topic: "It must be admitted that the overall level of China''s aviation industry is not as good as that of Europe and the United States, so from an objective point of view, this concern, or prejudice, is reasonable. Then what we have to do is to use facts to prove our strength. Eliminate their prejudices!" Use facts...that is to say, do we need to conduct a demonstration test directly for them? Use our aircraft to fly around in SLD climate conditions? ??The person who is most enthusiastic about the issue of mutual recognition of regional aircraft is Yi Yuanhe. After all, this is directly related to whether the MA-60, which he is responsible for designing, can have a good market: "But in this case, MA60 must be further improved. The current anti-icing system design still only considers the 4 types of capabilities in our new standards, that is, the average diameter of supercooled droplets is 100 microns, and the maximum diameter is 100 microns. Not larger than 200 microns." Lin Guofan, who was sitting on the other side, also added: "It''s not just a problem for airplanes. Generally speaking, if the humidity is high enough to form millimeter-sized droplets, it will have snowed long ago. Therefore, the climate condition of SLD itself is rare, even in the Great Lakes region. Its already mid-February and its almost impossible to find suitable test airspace in the country. After hearing this, Yi Yuanhe quickly asked: Generally speaking, when will it take until the climate conditions meet the requirements? Basically, there are only three months from the end of October to the end of December every year. Lin Guofan, who has been tracking domestic low-altitude meteorological conditions for twenty years, replied almost without thinking: And it depends on luck. But we cannot wait another ten months. The revision of the airworthiness standards for SLD is an urgent matter and cannot be delayed until the end of the year. There is no need to wait until the end of the year, or in other words, there is no need to wait for the naturally occurring SLD climate. ?Seeing that several other people had already refined the most critical issues through their words, Chang Haonan went straight to the topic: If there are no conditions, create conditions. We can artificially create an environment that meets the requirements. ??If it were left to normal times, the following people would have already begun to discuss this idea. But everyone sitting here, at least all the technicians, have seen Chang Haonans ability in solving the problem of Y-8 wing icing. Not only have wild ideas, but also the ability to turn ideas into reality. So everyone is waiting for him to give further explanation. ?Chang Haonan stood up, pulled out a blackboard placed in the corner of the conference room, and then drew a simple drawing on it. An airplane dragging a long hose. After finishing, he gently threw the chalk into the box next to him and turned around. Even though it is very abstract, people here can still recognize it. It should be an H-6. We can modify a H-6 as an icing water jet specially used to artificially simulate ice cloud test environments. Because the original design is already quite mature, there is no need to retest the aerodynamic part of the aircraft, only some new equipment needs to be replaced. "For example, the original oil storage tank is changed into a water storage tank, the engine''s pressurized air is used as the air source, and the original refueling drogue is changed into a set of flat nozzle arrays to distribute the pressure air and water flow from the air and water system. The air port and water port of each nozzle are supplied to atomize water and form supercooled water droplets in the external low-temperature environment, thereby achieving the purpose of artificial ice clouds. "The only problem with this improvement is that the size of Hongyou 6 is still too small and the water storage capacity is not large enough. I calculated that it can only work for a maximum of 20 minutes per takeoff. For those icing subjects that require long-term testing Its still a bit short, but the SLD test is originally about short-term high-intensity icing, so... its completely sufficient! "The core of the entire renovation project is the nozzle array. Based on my personal experience, I will temporarily set it as a multi-layer array composed of multiple two-fluid micro-mist nozzles. The crossbar is a double-layer nested air-water pipeline. The cross-section It is circular, the middle keel rod and the frame rods on both sides are only used as support structures, and the cross-section is elliptical. As for the specific array parameter settings..." Chang Haonan lowered his head and considered the computational difficulty of this problem: Give me two to three days and I should be able to give you the design result. (End of this chapter) Chapter 217 Modification of H6 that uses up the alphabet Chapter 217 The modification of H6 using up the alphabet ?This idea of ??using artificial water spray to simulate icing conditions is not Chang Haonans first initiative. In fact, the first icing experiments conducted by humans were completed on the ground by using an elevated icing spray tower to create artificial ice mist. In the 1970s, the U.S. Air Force began to use icing sprayers modified from C-130 transport aircraft. However, due to the atomization capability of the nozzles at that time, it could only be tested within the speed range of 200km/h and the altitude range below 1000m. Therefore, most The time is spent testing helicopters. ?The new spray system designed by Chang Haonan can support a wider range of uses and can fully test propellers and even subsonic jet aircraft. After all, it is no problem for the H-6 to fly at 700-800km/h. ?Everyone immediately saw the potential of this thing - If there is a larger transport aircraft in the future, it can even be moved up to obtain a longer spray duration, which will greatly change the current situation in the past that natural icing tests can only depend on the weather. You must know that in the past, the reason why the United States was the dominant player in the field of aircraft icing research was because they could conduct test flights almost 8-9 months every year, while other countries did not have this condition. Should this aircraft also have a control system to form water mist of different diameters by controlling the flow rate and the air pressure change of the nozzle? ? Lin Guofan, a meteorology major, was the first to ask his own question: Yes, the control system can be accommodated in the former refueling pod. Chang Haonan nodded: As for the controller He looked at the schematic diagram drawn on the blackboard and hesitated: Perhaps we can only force him to stay in the original position of tail gunner... The early version of the Tu-16/H-6 has a cabin at the tail that can accommodate one person for operating the self-defense turret. Hongyou 6 has eliminated the tail gun, but this position was retained because it could not be used. It could just accommodate the controller of the spray system. The only problem is that the comfort is relatively poor. This model is very important to us, even apart from the European delegation. Huai Guomo directly gave the final decision this time: Since it is modified from the H-6 and it is an icing test aircraft, I think it is better to temporarily name it H-6J. What does Comrade Xiao Chang think? Well In fact, logically speaking, naming is not important, just assign a number and that''s it. However, for the H-6, the situation is quite special. Before Chang Haonan was reborn, the H-6J was a missile-carrying aircraft developed to self-bomb the 6K. Although this may not still be the case in today''s timeline, it still feels strange to Chang Haonan. "I think this single-letter suffix should be reserved for combat aircraft of the aviation force." The English name for the icing water jet is Airborne Icing Tanker, which is also called H-6AIT. This makes it easier for Europeans to understand. Facing the different opinions put forward by Chang Haonan, Huai Guomo did not persist: That makes sense, then just do what Comrade Xiao Chang says! The code name is really not important. Then he said in a half-joking tone: However, by leaving so many letters for the aviation unit, does Comrade Xiao Chang think that our H-6 can still be modified into so many models? Chang Haonan almost couldn''t hold back his laughter when asked in one sentence - Where did J come from? In later generations, even the 6N has been released... He suddenly remembered a famous scene he saw on TV: You must no longer use Figure 16 now, right? .gif Ahem, just in case, just in case. After the meeting, Chang Haonan naturally took Lin Guofan and Liang Shaoxiu and other technical staff to the 603 Institute to start designing the H-6AIT transformation plan. ?Yi Yuanhe and other members who were originally responsible for the MA-60 project need to come up with a new anti-icing system that can ensure the safe flight of the aircraft under SLD conditions for at least 10 minutes. ?After sending everyone else away, Huai Guomo quickly reported the negotiation status and the delegations decision to the Science and Technology Committee on the internal phone. ?When Ding Gaoheng on the opposite side heard that "it was decided to temporarily modify a H-6 to conduct artificial simulated icing flight tests under SLD climate conditions", he immediately burst into hearty laughter. Im afraid Chang Haonan came up with this idea, right? "Yes, it''s him, and he just said in the meeting that it only takes up to three days to design the core set of flat nozzle arrays in the transformation plan, ensuring that the H-6ATI can fly at 700-800km/ At a speed of h, water mist with a diameter between 20 microns and 1 mm can be generated normally. Huai Guomo also smiled when he answered, obviously in a good mood: In fact, Director Ding, even the mutual recognition of airworthiness certificates for small and medium-sized aircraft with Europe was proposed by Comrade Xiao Chang on an ad hoc basis at the negotiation site. I guess its this guy. Even though there are a lot of resources that need to be mobilized, there is not much worry in Ding Gaohengs tone: In the past, if I agreed to such a bold idea, I probably wouldnt be able to sleep well in the next few days, but Chang Haonan...its worth letting him give it a try! So about the Hongyou 6 he wants Huai Guomo, who was a soldier, knew very well that before an aircraft is delivered to the army, it is an asset of China Aviation Industry Corporation. The Science and Technology Commission can dispose of it with a note. But once it is delivered, it becomes military equipment and is required. Can only be mobilized upon receiving orders from superiors. Although the leaders of the Science and Technology Commission all have military ranks, and Ding Gaoheng is even a general, he is actually a professional and technical officer and does not have command authority, so he needs to apply to a higher level. ?However, Ding Gaohengs answer was decisive: Give it to him! "I will contact the higher authorities to make arrangements regarding the aircraft. In addition, this reciprocal and mutual recognition is very important. Subsequent negotiations should consider this issue as the core. Without losing independence and autonomy, all the parties within the Science and Technology Commission system and aviation All industrial-related resources can be deployed by you! In fact, in the timeline after Chang Haonan''s rebirth, the greatest advantage of the development of China''s aviation industry, especially the civil aviation industry, was not even the various advanced technologies he developed. ??But starting from the rewriting of GJB/Z64-94, the Science and Technology Commission gradually took the lead in the development of civilian models in its own hands. Compared with the Civil Aviation Administration of China, which has a variety of interest demands and has too many foresights and hindsights in the aviation industry development decision-making process, the Science and Technology Commission, taking the lead, can at least ensure that the basic line of independent development of the aviation industry is unswervingly implemented. ?Although China''s foundation is relatively weak, it is better to concentrate its limited resources in one place than to disperse its forces and fight independently. Perhaps because he was still worried about Huai Guomo, Ding Gaoheng thought for a moment and then gave him a reassurance: "Don''t be too stressed. This is a once-in-a-lifetime opportunity for us. Be bold. If there is any responsibility, I will bear it!" Hearing these words from his old superior, Huai Guomo, who was over sixty years old and had experienced many storms in his life, felt an unprecedented excitement in his heart. It seems like I have returned to the time when I was young. Yes, I promise to complete the task! (End of this chapter) Chapter 218 Already have an idea Chapter 218 Already has an idea No one knows how many phone calls Ding Gaoheng made that night and how many people he woke up from their sleep. In short, on the afternoon of the next day, a H-6 that had just been delivered landed on the runway of Yanliang Airport, and was quickly dragged into the assembly shop to prepare for modification. There is not much time left for them. Fortunately, the aircraft already has complete pipelines and control systems, and this part only needs to be slightly improved. ?What surprised Chang Haonan was that a little later than the arrival of Hongyou-6, another Boeing 737-300 slowly appeared on the horizon. Flying from Shengjing. ?Although at first glance it looks similar to the painting of most civil aviation aircraft, there is a parallelogram-shaped national flag painted on the vertical tail. It was similar to the Challenger 601 business jet he took when he came to Haojing a few days ago. A special plane for important personnel of the 34th Air Division. Is there a leader coming? Chang Haonan, who had just completed the on-site inspection of the H-6 in the assembly workshop, was confused for a moment. ??The standards of this negotiation are indeed very high, but even according to the principle of reciprocity, Huai Guomo''s level is definitely enough, and there is no need for a higher-status figure to show up in person. ??And the security level around the airport is completely different from that at Beiling Airport. His doubts were quickly answered as the Boeing 737 landed and began taxiing a few minutes later. The people who walked out of the plane turned out to be a group of old acquaintances. Senior sister? Forest worker? ?Chang Haonan quickly recognized the two people who walked out of the cabin first. One is naturally Yao Mengna, whom I havent seen for more than a month. The other one is Lin Shikuan, the leader of the digital design team who was led by Chang Haonan and his colleagues for several months when he was in Institute 601, and now can barely take charge of his own duties. Dr. Chang! ??After seeing Chang Haonan, who was wearing an aviation industry work jacket and standing not far from the parking space, Yao Mengna couldn''t help but smile, but she still remained a little reserved and only sped up her pace slightly. ??But Lin Shikuan didn''t pay that much attention. He walked down the gangway quickly, stretched out his hands and shook hands with Chang Haonan: Happy New Year, Dr. Chang. Its a pleasure to work with you again. ?Among the employees in the aviation industry who have worked with Chang Haonan, only Lin Shikuan always called him Dr. Chang because of his initial habit, and he obviously respected him more. On the one hand, the two of them have been working together for significantly longer. On the other hand, Lin Shikuan and his entire digital design team have also grown from semi-abandoned children that even the cafeteria aunts disliked after Chang Haonan and Yao Mengna arrived at No. 601. Now there is a rising star in the entire institute. It can be said that Lin Shikuan''s entire life has changed because of Chang Haonan. Junior brother, long time no see. Happy New Year. Yao Mengna also walked down later, but almost subconsciously stood opposite Lin Shikuan, side by side with Chang Haonan. Happy New Year to you too, senior sister. Behind the two of them were more than two dozen engineers from the 601 Institute who had participated in the improved design of the J-8C. ?This time Chang Haonan finally understood. It should be that the Science and Technology Commission played a role. It was worried that the strength of the 603 Institute alone was not enough to complete the research and development of the H-6AIT aircraft and the improvement of the anti-icing system of the MA-60 in such a short period of time, so it directly transferred the research and development of the H-6AIT aircraft and the improvement of the anti-deicing system of the MA-60. Lin Shikuan and others came to support him. As for this Boeing 737 special plane ??If combined with the Challenger 601 that was sent here, it does have some profound meaning - Chang Haonan didn''t know exactly what he was going to do when he came here before. He was arranged to take off from the military part of the Twin Towers Airport and take a specially dispatched business jet. He just felt a little flattered. However, in both cases of transporting people, no aircraft from the civil aviation system was rented. Apparently there are confidentiality considerations. ?Although Chang Haonan has always been far away from the world, he knows very well that the development of the aviation industry is not only a technical issue, but also a route issue. ? Judging from the current situation, Ding Gaoheng and the Science and Technology Commission system are obviously better. For him, this result is obviously a reassurance. At this time, Yi Yuanhe also stepped forward and thanked the fraternal units for their support on behalf of the entire Haojing factory. Mr. Yi is so polite, why dont you thank me? After all, our China Aviation Industry is not a family... ?Lin Shikuan said as he followed Chang Haonan and Yi Yuanhe towards the office building of Factory 172. ?His words were not entirely polite. At least Chang Haonan had seen with his own eyes in his previous life that when Institute 601 held celebrations, many big bosses from Institute 603 and 611 came. In the 1990s, the first group of people involved in the aviation system had not all retired, and the relationship between them was actually closer. ?Besides, the Science and Technology and Industry Committee has stepped in to coordinate, so how can we not give face??????This is the advantage of using your energy in one place. After the greetings ended, the group also arrived at the office space prepared for them. ?Lin Shikuan turned to Chang Haonan again: Chang Gong, you will be the one to assign work to all of us. Is this... Chang Haonan briefly analyzed the current situation: For him, it is not difficult to design the planar nozzle array. Moreover, with the help of designers from the 603 Institute, as long as some key parts are sorted out, the rest of the numerical simulation part only needs to be run by the computer. On the contrary, the analysis of wing icing conditions and aerodynamic effects under SLD conditions requires more manpower to complete. Lets go to the design office first. Ill briefly explain the current situation to you Then, Chang Haonan spent about 10 minutes introducing the two tasks before him. Of course, they only talked about the need to design a new icing water jet and modify the MA 60 to adapt to harsher climatic conditions. The construction period is very urgent and must be completed within a week, and the issues related to the China-EU negotiations were ignored. All parts. Its not that I dont trust Lin Shikuan, Yao Mengna and others. Its just simply unnecessary. ?The fewer people who know about this before the negotiations are finally settled, the better. "So my arrangement is to leave three to four people to help design the flat nozzle array and change the original refueling control system to a water spray control system. Lin Gong, Senior Sister Yao, and the remaining comrades need to Help improve the work of MA60. ?After hearing the work arrangements, Lin Shikuan stretched out his hand to push up his glasses and asked hesitantly: There is no problem in improving the design, but... after the design is completed, we still have to manufacture it. Is one week really enough? Of course its not enough to make new ones. ?Chang Haonan replied simply and neatly: But I have done some small calculations last night and found that when the lift-increasing drag-reducing airfoil encounters large-grained supercooled water droplets, the lift coefficient decreases more significantly. "Due to limited time, I only tested it once with 100 microns and 500 microns. The result was that it was fine at 100 microns, but at 500 microns, the ice on the leading edge slats made the flow boundary layer on the upper surface thicker. Moreover, the size of the standing vortex behind the slats becomes larger, and the lift coefficient decreases by 54.6% within 180 seconds of ice formation. The ice formation on the winglets causes the flutter characteristics to change, and the effect of the previously designed active flutter system weakens. The flutter speed is directly reduced by 15%. "No matter how good the de-icing system is, it can''t save this situation. So if you want the aircraft to fly normally under extremely harsh conditions, you have to use the previous more conservative wing. As long as the 172 factory is on it Just renovate it. They are both SLDs, but they are also different. ? ? Droplet diameters of 100 microns and 1,000 microns are both called SLD, but their effects on aircraft are obviously completely different. ?The reason why Chang Haonan wanted to simulate conditions of 500 microns or even higher severity was to show off his skills in the faces of Europeans, so he did not hesitate to modify the aircraft specially for this purpose. As for the model that is truly market-oriented, it will naturally use the new wing. Unless there is a customers explicit requirement to fly in extremely bad weather. That is the scope of the special aircraft business, and such users can naturally accept the corresponding performance loss. In fact, in the past life, even before Chang Haonan was reborn, no aircraft in the world could pass the whole aircraft icing test method to verify the compliance of supercooled large droplets, mixed phases and ice crystal icing conditions. So the normal configuration combined with the Category 4 anti-icing and de-icing capabilities in Chinese standards is absolutely sufficient to cope with normal flight conditions. ?The Americans are just making cards out of thin air now. Improving the accuracy of weather forecasts is the right way to go. ??If you have to take off in a snowstorm with high humidity, the gods will not be able to save you. After explaining, Chang Haonan put down the chalk and looked back at everyone: Do you understand everything? Looking at the key data and mathematical models written by Chang Haonan on the blackboard, the members of the 603 institutes participating in the meeting collectively performed a dumbfounded performance - ??Didnt we just receive the mission yesterday? ?Its only been one night? I thought it was just the beginning? How come you have even compiled the phased research results? Be a human being! ?After a while, an engineer finally raised his hand weakly: "Chang Gong...do you mean you already have an idea?" Chang Haonan smiled and nodded: Of course, well go to the computer room to talk in detail later. Lin Shikuan, who was already used to this, immediately curled his lips, thinking that you young comrades from Institute 603 still dont see much of you, and the regular workers were shocked like this before they even showed their most inhuman side... Too young! (End of this chapter) Chapter 219 Why is it me again? Chapter 219 Why is it me again? ?Perhaps because the pressure from the Americans was really great, the European delegation also changed its usual style of shoving the blame and completed the communication with the headquarters in only three days. Fortunately, Chang Haonan and others are more efficient and have basically completed the design work of two key projects. The next manufacturing part will naturally be assisted by Lin Shikuan and others. In addition, in the previous life, it was the 603 Research Institute and the 172 Factory that were the first to try the full digital design in the JH-7A project, which shows that they already have some technical reserves in this area, let alone worry. So the second round of negotiations continued immediately. ?When the delegations from both sides entered the venue, Colombo, who had some friendship with China, came over: Chang, you look very tired, as if you just had a date with two...or more women last night. It can only be said that he is an Italian as expected. Chang Haonan had looked in the mirror to see his own condition before setting off. Naturally, he knew that the two huge dark circles under his eyes could not be covered at any cost, but it was impossible to admit that we had improvised a set of things to do in the past three days. Test equipment and a test machine, so he rolled his eyes at the other party helplessly and did not answer. ?However, judging from Colombo''s expression, he may have interpreted Chang Haonan''s speechlessness as acquiescence... In short, after everyone sat down, and with a brief polite greeting, the intense negotiation began again. This time, Chang Haonan sat directly next to Huai Guomo. The job of talking nonsense is naturally done by other professionals, but after all, the idea of ??exchanging technology for airworthiness was proposed by him, and it can hold up the scene at some critical moments. ?Although he was really sleepy, he still managed to pull himself together and listen to the exchanges between representatives from both sides. The European side has shown interest in the preemptive strategy, especially ATR and JAA, and even agreed in principle to the joint construction of an icing wind tunnel. They only proposed that a certain number of European scientists must be guaranteed to work there without visas. , and the wind tunnel equipment must be purchased from Europe. ??They are being harassed by Bombardier and the FAA these days, but others are holding up the banner of aviation safety but dare not speak out publicly. The situation was once very passive. Although Airbus is directly under less pressure, if the airworthiness regulations on supercooled large water droplets are really passed, they will definitely not feel better. Several later sub-models of the A330 and A340 have not yet completed airworthiness certification. ?Moreover, the price offered by the United States to delay the regulations from taking effect is to unconditionally approve the merger of Boeing and McDonnell Douglas. This is something that has a direct impact on Airbus. So at least they are not opposed to it. As for the money, Airbus has plenty of it, and they dont provide the bulk of it. ?However, when Huai Guomo proposed mutual recognition of civil aircraft products with a maximum take-off weight of 50 tons and below and a load capacity of 100 seats and below, the other party still hesitated. After a short discussion that came to no conclusion, Anne Valette said they needed a 30-minute adjournment. ?This is not beyond Chinas expectations. After all, airworthiness certification is indeed a big deal. ?Although JAA currently does not have the mandatory power on member states, that is, after JAA decides to mutually recognize each other, in theory, the domestic certification standards of each member state can still refuse to connect with CAAC. But obviously not too many countries will sing this opposite tune. ?Furthermore, they have already prepared a more comprehensive and complete institution EASA at the EU level. By that time, it will be mandatory... So as long as the other party does not refuse without reservation, it is a good thing. Comrade Xiao Chang, how much do you think we need to pay to get them to agree to mutual recognition? Huai Guomo asked Chang Haonan, who was rubbing his eyes next to him, with some worry in his tone. After all, Ding Gaoheng has given extremely high authority and said that he does not need to be afraid of taking responsibility. If the negotiation fails, he will be embarrassed to face his old superiors. The latter cheered up and stretched out his hand to reassure him: It shouldnt be too much. Ill find a way to let them see with their own eyes our strength in the field of aircraft icing and anti-icing. The difficulty of negotiation will definitely be reduced a lot. Hearing this, Huai Guomo did not respond immediately. He just stared at Chang Haonan for a while, and then said with emotion: I dont mean to distrust you, but it took you three days to come up with an improvement plan for two aircraft... Its simply incredible. Its really not easy these days. Chang Haonan, who was tired, showed a satisfied smile. With the continuous growth of management experience and life experience, he has learned how to express his happiness and pride without being shy, without appearing to be arrogant: But the foundation has been laid in the past. For example, the body structure of the H-6 does not need to be modified at all, and the MA-60 can also use the previous wings to make minor repairs... It is finally completed. Huai Guomo also noticed Chang Haonans fatigue: Thank you for your hard work, why dont you ask the staff to find an empty room for you to take a rest, and Ill have someone call you before the adjournment is over. The latter is indeed a little unable to hold on.?????This is fine. Half an hour later, the negotiations resumed. The first person to speak was Airbus representative Augusta Schneider, who had never expressed his position before: As for the mutual recognition of airworthiness certification, I think you must admit that this is something that does not bring much benefit to us. ?This doesnt sound nice, but its true. After a pause, he continued: "But the conditions you offered are only to give ATR a higher-level anti-icing design and to authorize a set of so-called icing simulation software and the corresponding basic database. It is difficult for me to think that this is a reciprocal transaction. " ??Schneider had another sentence left unsaid: Especially for us at Airbus. Airworthiness certification restricts operation rather than flight. In other words, if an aircraft does not obtain a JAA airworthiness certificate, it just cannot be registered in a member country, and it does not affect the jurisdiction of the aircraft of this type operated by other countries within the jurisdiction of the JAA. Flying and taking off and landing. Even just agreeing to mutual recognition of the airworthiness of regional airliners is equivalent to a certain degree of recognition of the level of China''s aviation industry, allowing more countries to dare to purchase aircraft produced by China with confidence. Therefore, although Airbus has no products of 50 tons/100 seats or below, Schneider does not think that the Chinese can come up with aircraft that threaten the A320 or A330 in a short time, but anyone can see that this is the beginning. It is best not to create opponents for yourself unless there are enough benefits. Although this Schneider seemed difficult to deal with, he did not refuse directly. I suppose, Mr. Schneider. Finally it was Chang Haonan''s turn to speak: You may have misunderstood the value of that software, or that database. ?Schneider waved his hand impatiently: Mr. Chang, we have also developed the same ice type prediction software, and we still have some understanding of this aspect. Although it has certain reference significance, it is not of much value for engineering applications. "Well, we have an old saying in China that what you hear is false, but what you see is true." ?Seeing that the heat was almost there, Chang Haonan directly put forward the idea that he had planned for a long time: We are preparing to conduct an icing flight test under extremely harsh SLD conditions these days. How about you select a few representatives to see with your own eyes our technical strength in this field? ?This slightly abrupt proposal did not even allow the other party to react for a while. Flight test? JAAs Valette couldnt believe his ears. Mainly because I have never seen this happen during negotiations. Thats right, for the flight test, you can choose two or three people to go up with one of our MA60s to undergo the SLD climate test where the average diameter of supercooled large droplets is 400 microns and the maximum diameter is 500 microns. After a pause, he added: Of course, we have 100% confidence in ensuring the safety of testers, but because the situation during the test may be quite...spectacular, I recommend that participants be mentally prepared. ??The other delegation did not completely kill this matter in the half-hour discussion, but was prepared to see how much chips China was prepared to pay. Therefore, after a brief exchange, they agreed that they could go and see it first. At least look at how much the Chinese people are worth. We agree in principle to participate in your natural icing test. ??Valette said crisply: As for the specific candidates selected... For a time, all eyes in the entire negotiation scene were directed at the same person Rosie Colombo. whaaaaat? Colombo looked around in confusion: Why is it me again? (End of this chapter) Chapter 220 Does my software still have this function? Chapter 220 Does my software still have this function? In fact, it is completely reasonable for everyone to think of Colombo first. After all, last time he followed the MA-60 prototype No. 01 for a natural icing test flight that complied with the Category 4 requirements of the CCAR standard. Whether it is from the experience of following test flights or the familiarity with Chinese testers and testing processes, they are all worthy of the title. Besides, the MA-60 aircraft also belongs to your Finmeccanica Group. So Colombo cannot escape no matter what. ?In fact, when he was in AgustaWestland, he also participated in many helicopter natural icing experiments. If the normal conditions were left alone, he wouldn''t necessarily be afraid. But the experience of following the entire flight during the last round of tests was so unforgettable that for a long time after that, Colombos main nightmare was seeing the ice-covered wings outside through the portholes due to violent tremors. Vibrated and broken. And this time the weather conditions turned out to be even worse. ??More importantly, he has just been transferred to the parent company and received a promotion and salary increase. He has not even had time to find a lover to have fun, and he is really unwilling to risk his life again. ?Its really hard to think about it. It is said that Chinese people all adhere to the golden mean and are not so adventurous? In a few seconds, Colombo''s expression changed from sadness to happiness. ?However, he also knew that now that the matter was over, if he wanted to continue in this industry, he would not be able to refuse. Ahem Colombo moved his shoulders unnaturally and struggled to smile. ??Instead of being chased away from the shelves, it is better to come forward: "I completed a natural icing test flight with the Huaxia team a few months ago, and I also worked with Professor Lin, Mr. Chang, and Mr. Liang, so I am one of the candidates this time. There should be no problem, right?" " ?Chang Haonan and the others actually don''t care who follows them, as long as what the person says after getting off the plane can convince the public. Colombo is still an acquaintance after all, so they naturally have no objection. Others on the European side were even more eager to see someone "volunteer" to take on this task, and they immediately voted unanimously. ?However, after Colombo said a few words of thanks to everyone, he continued: "In addition...China said that we can send two or three people to participate in the experiment. For the sake of fairness, how about this opportunity be divided equally among the representatives of the three parties?" ?This is very well said. First of all, we regard the quota for this follow-up test as a rare opportunity, and propose that the three most important parties in the European delegation: JAA, Finmeccanica and Airbus each obtain one ?Since you dragged me into the water, stop standing on the dry shore and get wet together. ?Sure enough, everyone who was watching the excitement turned their attention to Schneider and Valette next to them. Unexpectedly, the former immediately used his ultimate move: "I have severe symptoms of airsickness. As you saw on the way here, why not let Professor Lorenzo represent our Airbus company? He happens to be an expert in body mechanics and fluid mechanics. You can see it even on the plane. More stuff to come." Although Fernando Lorenzo is not young, his thirst for knowledge about unknown things has not diminished at all. When he was young, he was probably the only one among the people who really regarded this trip as a good thing, so when he heard someone recommend him I was so excited afterwards that if I hadn''t taken into account my status as a member of the negotiating delegation, I would have jumped up to express my agreement. ?Schneider, who was still frightened, finally felt relieved, and at the same time subconsciously raised his hand to loosen the knot of his tie. ??The wave of disaster that just caused Colombo''s disaster to the east almost left him breathless. Valette, the leader of the JAA team over there, is not so lucky. Her situation is similar to that of Colombo. She was promoted not long ago and has not had time to establish her own team and prestige. Moreover, among the people she brought with her, There is no scientific madman like Lorenzo who is eager to volunteer, and he will not go even if he names others. ?Everyone knows that even if the negotiations are successful, the main credit must belong to the three team leaders.? ? ? ? Just kidding, what are you doing with a few thousand francs a month? "I agree with Mr. Colombo''s opinion. Then I will participate in the JAA myself." ?So in this somewhat weird atmosphere, the European candidates to participate in the flight test were determined. For the Chinese delegation, the main purpose today is to get the Europeans to agree to participate in the subsequent test flight process. Or to put it more bluntly, give yourself a chance to show off your skills. ?Now that the main purpose has been achieved, Huai Guomo began to make a concluding speech, preparing to end this round of negotiations: "In this case, our second round of negotiations will be here for the time being. If nothing else happens, the icing test will be scheduled for three days. During this time, we will send special personnel to take charge of Mr. Colombo, Ms. Valette and Loren The itinerary of the three professors. ?Perhaps because the negotiations were generally going very smoothly, the old general was in a good mood. He looked at the foreigners opposite and added: "As for other members of your staff, considering the issue of confidentiality, it is best not to go out alone. If necessary, we can arrange some visits together. Haojing is the birthplace of our Chinese civilization. More than 8,000 years ago, the Chinese nation The ancestral grandmother of the Huaxu family and the female leader of the Huaxu Kingdom, her hometown is Huaxu Town in Lantian County, Haojing. It was also the ancient capital of the Thirteenth Dynasty, and you will not be disappointed. " Since this negotiation needs to be hidden from the FAA and even some forces in China, this European delegation is not large in number and is not very high-level, so it is easy to arrange. ? Many scenic spots and historic sites in later generations were not open to public ticket sales in this era. Moreover, this was just after the new year, so there would not be many domestic units organizing visits, so it was completely possible to book the venue directly. Although Chang Haonan himself absolutely believed that there would be no problems with this test flight, no matter from the perspective of aviation safety science or from the perspective of the three Europeans themselves, it was impossible to get on the plane and participate in such a type of risk. test flight subjects. Therefore, during the few days waiting for the completion of the aircraft modification, Chang Haonan and Lin Guofan''s mission was to introduce to Colombo and others the preliminary work they had carried out to prepare for the test flight without leaking the secrets, and to dissuade them. Of course, the main thing was Concerns of both Colombo and Valette. Are you really not even going to do wind tunnel testing? Colombo looked at the calculation results given by Chang Haonan on the computer screen. Although it clearly stated that level flight without **** for 5-10 minutes under SLC conditions would only result in a 22% reduction in the wing lift coefficient. For light load conditions, There is no risk of accidents for the MA60, but the computer program in front of him is a black box after all, so he still can''t completely relax. Chang Haonan called up the icing simulation program again, output a few parameters and started the calculation, then turned around and said: Actually, Mr. Colombo, with all due respect, even if we did do wind tunnel testing, it would make no sense at all. Professor Lorenzo should know that even the best NASA icing wind tunnel in the world can only create the ultimate conditions of 35 micron water droplet diameter, 50m/s airspeed and minus 30C ambient temperature. " Lorenzo next to him nodded, expressing his approval of this statement. Chang Haonan then said: But the extremely harsh conditions we are going to test this time are 400 micron water droplet diameter, 114m/s airspeed (equivalent to 410km/h) and -30C temperature. So, wind tunnel simulation is the same whether we do it or not. Why not take a look at our simulation results. After finishing speaking, he took a step aside with his hands behind his back, revealing the computer screen that had just been blocked behind him. Chang Haonan did not run the parameters just now, so this time the software only needs to spend a short time to retrieve the results from the database and then render them into graphics. ?However, the GPU of computers in this era is still too poor. It is really troublesome to build a 3D module alone, so Chang Haonan simply left an interface to display the calculation results directly through CATIA''s 3D modeling tool. So what was displayed in front of the three Europeans was actually a CATIA interface, but a simulation diagram of the icing shape of the wing was clearly drawn on it! "this" Lorenzo, who has always been a scholar, seemed to have seen a ghost. He pointed at the screen in front of him and was speechless for a long time. After a while, he pointed at himself again, and then pointed at the screen again, as if the language module was temporarily blocked. It''s generally sealed. Just when Chang Haonan was worried and curious, hesitating whether to pinch the old gentleman, Valette next to him spoke: Professor Lorenzo, the software you developed also has this function? At this time, the old professor finally recovered his ability to speak: I...I dont know either? (End of this chapter) Chapter 221 Exporting industrial software to Europe Chapter 221: Exporting industrial software to Europe, things are changing! Chang Haonan naturally didnt understand French. After being reminded by the translator who was holding back his laughter, he finally figured out the ins and outs of this matter Professor Fernando Lorenzo was fully involved in the development of CATIA software throughout the 1980s and early 1990s. Apart from Francis Bernard himself, the president of Dassault Systmes, he was the only person responsible for all versions from version 1 to version 1. 4. People who are familiar with Windows platform and UNIX platform software. ??If Bernard is the father of CATIA, then Lorenzo can also be regarded as CATIA''s uncle. ? Its just that he did not have a senior position within Dassault, so starting in 1993, he was poached by Airbus while holding a teaching position. At this time, Chang Haonan finally remembered that Lorenzo''s paper that he had read in his previous life was about aerodynamic simulation and optimization analysis in 3DCAD software. ?And it is not difficult to understand that when such a person sees that the software he has created has functions that he does not even know about, he behaves as if he has seen a ghost. ?This time, this time it was Guan Gong who used a sword in front of the door, and it even frightened Guan Gong himself. Looking at Lorenzo with an expression of "I don''t understand", Chang Haonan quickly explained: This is not a function of CATIA software. We just left an interface on the software we developed and output the shape of the result through CATIAs 3D module to save computing resources. Huhno wonder ?Hearing this statement, Lorenzo finally calmed down a little, but the next wave of storms quickly followed - There are many icing prediction software in Europe and the United States, from the most widely used LEWICE to ONERA in France, CIRA in Italy, DRA in the UK, FANSAP-ICE in Canada, etc. But I have never heard of any software that can fully display the ice form directly through 3D models. (Actually, in 1997, the first version of LWICE3D was almost completed, but the performance and effects were terrible, and the user scope was basically limited to a very small number of institutions in North America.) Can I play with this model? ?After a long silence, Lorenzo asked tentatively. Chang Haonan nodded: Of course, the operation is the same as CATIA. At present, this interface only displays the results, and there is nothing that cannot be shown. Besides, this software will be sold commercially in the future, and we are not afraid of showing it to others. The real core part is the icing mathematical model and corresponding database established based on actual icing phenomena. In this regard, the more users (even pirated users) who use your own software, the more beneficial it will be for subsequent development. At the end of the day, although software is easy to pirate, it is not easy to learn from it. Not to mention these engineering application software, even if it is available on almost every computer, the seemingly most common Office office suite and its domestic competitor Yinshan WPS are still difficult to fully use in all application scenarios after decades of version iterations. instead of the former. ? Colombo put on his glasses and walked to the computer, held down the mouse and slowly dragged the 3D model displayed on the interface. ?Due to computer performance, in the eyes of Chang Haonan, a reborn person, the response of the screen is slow, with almost three lags per second, but for people of this era, they don''t care about such minor problems as delays and lags. ??Although 3D modeling and rendering as a visual representation technology have appeared since the 1970s, combining this function with the output module of engineering calculation software has indeed opened up a new track. "Although I have used CATIA in the past, I never thought it could be used like this..." ?Colombo held the Italians precise gesture with his left hand when speaking, and sighed to the two companions next to him. "Me too." ?Three Europeans gathered in front of the small screen, like primary school students seeing a computer for the first time. While looking at the icing simulation results in novelty, they uttered various exclamations in English, French or Italian. ?Chang Haonan stood behind them, smiling at Lin Guofan next to him as if his plan had succeeded. He knows very well how to deal with these old stubborns from Europe. There is no need to fix the empty ones. Just shoot them on the face with something they have never seen before, preferably to create the effect of Grandma Liu entering the Grand View Garden. As long as these old Europe lose their dignity in front of you, the momentum behind them will be much weaker. And this software certainly does not disappoint. "so" A few minutes later, the three people who had had enough fun turned around almost at the same time: "This is the software you said you would license to us before?" "Yes, that''s it, paired with the basic version of the database." Looking at the three faces in front of him, Chang Haonan knew that he was basically stable: "If we sign an agreement, JAA, Airbus, Finmeccanica and ATR will be able to use the software for free before the agreement expires, but other users will still have to pay. Of course, we may also choose to contract with a company Cooperate with local distributors to maintain commercial operations of the software in Europe. Basic version...means there is also a premium version? Lorenzo simply skipped the latter part and accurately captured the key. The results you see now are simulated through the basic version of the database. As for the advanced version... it contains more typical climate characteristics and some cutting-edge airfoil data, and it will be more efficient to use. ?Chang Haonan continued to seduce the other party step by step according to the plan. So how do we get the premium version? The old professor continued to follow Chang Haonan''s guidance and asked. Hmmthis Even though this so-called advanced version does not actually exist yet, Chang Haonan still pretended to be embarrassed: To be honest, Professor Lorenzo, the export of advanced software may be restricted by some of our countrys policies. ?This sentence is even more nonsense. At present, Chinas legal rights regarding software have not been fully defined, let alone any export regulations. ?This was 1997, who dared to think that China could sell software abroad... But the three people in front of me obviously dont understand this: What are the restrictions set by the policy? Anne Valette was stunned for a moment: "Mr. Chang, if the negotiation is successfully completed and the agreement is signed, we will be considered a partnership. Shouldn''t we be more open to our partners?" Chang Haonan chuckled after hearing this After going around in a big circle, he finally found the opportunity to say what he wanted to say: "Since you said we are a partnership, I will be blunt." For a long time, many high-end industrial equipment purchased by our country from Europe, such as cold heading machines, stamping machines, and CNC machine tools, can only process products with second-level or even third-level precision. They are obviously the same hardware, and our companies also It cost the same amount of money, but the functions of the industrial control software are limited. "We Chinese people are naturally willing to treat our partners with an open mind, but in the face of such chilling differential treatment, we can only adopt some reciprocal measures..." And there is no difference in core functions between our basic version and advanced version, but the richness of the database is different. Compared with the practices of some of your companies, it is already very benevolent. After finishing his words, Chang Haonan glanced at several people. ??Although he was the youngest, he still made the three opponents look embarrassed at the same time despite occupying the moral high ground. "this" Of course they know that what Chang Haonan said is true. ?However, this is obviously beyond the scope of the negotiating delegation. "Of course, I also know that this kind of thing is not something that your delegation can change. It can only be said that each has its own difficulties, but we should seek common ground while reserving differences and not let these difficulties affect our cooperation, right?" Chang Haonan did not expect to change the status quo through such an incident. ??This is just the first step to fight against unequal contracts, and someone has to take it. At present, it is just an icing simulation software, and it is naturally impossible to shake so many European industrial companies. However, the day will come when the offense and defense can change. Yes, I hope this cooperation with you can be successfully completed. With the steps given by Chang Haonan, Colombo also ended the somewhat anxious topic just now. Obviously, the balance in the hearts of the three people has obviously begun to tilt. (End of this chapter) Chapter 222 H-6AIT Chapter 222: 6AIT Lets not talk about the software for now, I have another question. ?As a scholar, Lorenzo is still relatively thin-skinned, and he still has a slightly embarrassed look on his face at this time: I just noticed that in your numerical calculation results, the icing position on the wing surface seems to be farther back than normal, and also much higher. Is that so? Its like this. Chang Haonan nodded: "Through our previous laboratory research, we found that it only takes about 0.001 to 0.1 seconds from the collision of the SLD with the airfoil to the completion of the icing process. This shows that the impact and icing of supercooled large water droplets has experienced a much longer process. The fast and complex thermodynamic process is completely different from the mechanism in general research in which droplets of tens of microns first form a water layer and then undergo a phase change through two-phase heat transfer. " He also followed Lorenzos question back to the technical discussion. I have just finished what I want to say. Although it is impossible to achieve any immediate results, it can at least make the EU begin to feel the pressure. It begins to feel that some Chinese companies are very dissatisfied with this discriminatory policy and have responded. means. The underlying logic of everything in the world is common. For example, if you seek peace through struggle, you will survive peacefully; if you seek peace through concessions, you will perish peacefully. ? Struggle can be for peace, blockade can also be for communication - Only when you can achieve peer-to-peer technical blockade, others will be willing to put down their posture and engage in equal exchanges with you. This is why the simple "market for technology" route is unlikely to work. So this is what you calculated using a new heat transfer and power model? Yes, our software can handle everything down to 1,000 microns. Chang Haonan said, reaching out and patting the hummingly running server host next to him: We will print out the 3D simulation diagram on the computer and send it to the three of us later. When we get on the plane, you can observe for yourself whether the actual icing conditions are consistent with our calculation results. Lorenzo frowned, realizing that things were not simple. During the first round of negotiations, Chang Haonan mentioned the need to create a new set of research methods and even a theoretical system. But at that time, he thought it was the other partys research vision and something he wanted to work with them to complete. ?The result now seems to be that this is someone elses research summary, and there is no need for foreign aid at all... ??Moreover, the young man in front of me dared to say that he asked them to take the results and compare them on the spot. He was obviously very confident in the accuracy. Lorenzo even has reason to believe that the Chinese side may have already conducted many similar flight tests, and this time it was just a reenactment for them to show off their skills. I have to say that although the old professor Siddique filled in a lot of non-existent intermediate content, the final result was indeed correct. Its about showing off your skills and your face! ?However, this time he was very self-aware and did not continue to ask about the details. He just secretly calculated in his heart how big the gap between the two sides was in this field... Instead, Colombo then asked his doubts: "By the way, Mr. Chang, you said before that the conditions we want to test this time are 400 micron water droplet diameter and -30C temperature. But the last time we did a natural icing test flight, I remember it took more than two weeks to wait until it was right. " As a mid-level company employee from AgustaWestland, although Colombo has been in management positions for some years, he was originally from a technical background. He is very aware that the test conditions mentioned by Chang Haonan are very difficult to occur even in the Great Lakes. It is even rarer to find in other places in several years. It was indeed the EMB120''s unlucky fate that it happened to hit a cloud mixed with supercooled liquid droplets and ice crystals. Of course thats impossible. Chang Haonan was worrying about how to move the topic to the next part more naturally, but when Colombo asked this question, he almost fell asleep and handed him a pillow: "In fact, although SLD has a wide range, only supercooled droplets below 200 microns are common. However, we have some new technical means this time, and we no longer need to wait for God to do as we did in the past." "New technical means refer to..." ?Colombo''s tone was a little hesitant. He was not sure whether the other party would reveal so much information. But this is what Chang Haonan was waiting for: Its useless to say more. Anyway, you have already obtained the results of the icing simulation. Next, I will take you directly to see our new technical means. Hearing these words, the other three people all showed somewhat surprised expressions. ?No one expected that Chang Haonan, who had always been wary of them, would be so easy to talk to this time. Three of you are coming with me. When leaving the computer room, the staff did not forget to give the printed simulation results to several people. ?A group of five people, plus three special service personnel and translators who were accompanying them, got into two military green 212 jeeps. Ms. Valette in the back seat showed a look of pain. On the way here, she was in great pain because of the air leakage from all sides and the lack of comfort in the car. Chang, you can obviously produce an aircraft like the MA-60, why dont you put the same effort into building a car that is at least more normal? ?Wallette held the passenger seat in front of him tightly with both hands to resist the bumps, and at the same time complained to Chang Haonan who was sitting in the passenger seat. ? This question confused the latter. In his impression, the European delegations itinerary after arriving in Haojing did not include a test ride on the MA60. Ms. Valette has been on our new boat 60 before? ??Valette nodded and replied in a slightly louder voice than usual: At the Xiangzhou Air Show last year, I experienced it inside the cabin. Although it didnt take off, it was definitely much more comfortable than the current car. Is this... ?Chang Haonan really didnt know how to answer for a while. You cant tell your foreign friends that because our different industrial sectors are still relatively fragmented, it will take a long time for the technological achievements of the aviation system to be applied to the automobile industry... In fact, China originally wanted to arrange a few better imported cars for the other party, but the Science and Technology Commission considered that Haojing was not a particularly developed city at this time, and a group of luxury cars suddenly appeared on the street. It would attract unnecessary attention, so I simply gave up and transferred a few 212 cars in good condition from the 603 factory and the 172 factory to get rid of the problem. Thats because AgustaWestland is responsible for all cabin comfort and ergonomics systems of the MA60 Fortunately, Colombo on the other side suddenly interrupted, and Valette did not continue to dwell on this issue. ?However, this topic also reminded Chang Haonan of what he had talked about with Minister Jin on the train home. ?Originally, he was preparing to promote the Seiko Plan when he returned to the capital after the Spring Festival holiday, but he was temporarily called to Haojing in the middle of the trip. The next few days were so busy that he almost forgot about it. About half an hour later, the two cars finally drove into Factory 172 and stopped at the entrance of a final assembly plant. Well, then, please allow me to show you the most important equipment in this icing test. Chang Haonan opened the car door and got out of the car first. He pointed his finger into the factory: H-6AIT. (End of this chapter) Chapter 223 The dignified Airbus actually wants to buy Huaxia Aircraft? Chapter 223 The dignified Airbus actually wants to buy Huaxia Aircraft? From where everyone got off the car, they could already see a seemingly unremarkable mid-wing jet aircraft parked in the huge workshop. Everyone here is a professional. Even three Europeans know the H-6 prototype 16. AITIcing Simulator? This time, it was Colombo who reacted first, and then showed a disappointed expression: This is your secret weapon? As a former AgustaWestland employee, Colombo has experience that many people working on fixed-wing aircraft do not have. This includes using various artificial icing simulation methods to verify the helicopter rotor anti-icing system, so icing simulated aircraft is not new to him. ?Wallet, who was separated by a mountain, showed a little curiosity. In her opinion, this plane with pods under the wings is more like an aerial tanker. ?Only Lorenzo, who was well-informed, did not show any emotion. He just put his hands behind his back and stared at the position at the tail of the refueling pod where the refueling drogue should have been. ??A bulkhead-style device is being installed there at this time. ?Chang Haonan was not dissatisfied with Lorenzo''s tone and expression. ??He knows the principle of suppressing first and then advancing. The more the other party thinks this plane is ordinary now, the easier it will be to be shocked later. Mr. Lorenzo, this is not an ordinary AIT aircraft. Please follow me, three of you. ?The group of people walked slowly into the final assembly workshop. The modification of the H-6 was almost completed, and only some necessary modifications were left to the positions of the original tail gun shooter cabin and the communications module. Rossi, you should have seen that C130-modified icing simulator in the United States, right? Lorenzo, who was following Chang Haonan, asked Colombo next to him in a low voice in unskilled Italian. The latter replied almost without thinking: Of course, the A109s rotor de-icing system was tested with the assistance of that aircraft. So what was the airspeed you were testing at? ? Lorenzo has only heard about C130AIT, so he doesnt know many details. Airspeed? Colombo was suddenly asked: Let me think about it, we dont pay much attention to this data when testing helicopters... Because the helicopter does not rely on its own speed to provide lift, more attention will be paid to the rotor speed during icing test flights. After a few seconds, he replied in an uncertain tone: About 110 knots, which is about 205km/h ?After hearing this answer, Lorenzo nodded thoughtfully. This is the injection device we specially developed for simulated icing tests under SLD conditions. H-6 is actually not a very big aircraft. Coupled with the design of the mid-wing, Chang Haonan can reach out and touch the position of the refueling pod: "The side length after full expansion is 1.5 meters. It is composed of a total of 68 two-fluid micro-mist nozzles, which can spray an average particle size between 25 microns and 1 mm at a maximum speed of 750km/h and an altitude of 5,000 meters. Uniform water mist with a deviation of no more than 20%. It was similar to what Chang Haonan had expected. As professionals, the three Europeans quickly understood it after hearing the introduction. ?Especially Colombo, who was a little disappointed and disdainful just now, the corners of his mouth twitched obviously a few times. For a time, the only sound left in the entire workshop was the sound of the motor when the power tool was started. Wait, wait, wait ?Colombo finally realized at this time why Lorenzo had asked himself those slightly abrupt questions just now. ?If he had read Mr. Lu Xuns works, he would definitely have the following emotion: Im so stupid, really, I only knew that there are icing simulation aircraft in the United States, but I didnt know that the one in front of me is even more awesome... ?This H-6AIT can be said to be completely different from the C130AIT he had seen in North America before. The latter can only be used at low altitudes within a very narrow speed range around 200km/h (the stall speed of the C130 is about 185km), so it can basically only be adapted to the normal flight conditions of helicopters. ??And the Chinese peoples test object this time was a serious fixed-wing aircraft. The test conditions they previously set were an airspeed of 114m/s, exceeding 400km/h. According to Chang Haonan, this aircraft can even work normally at a speed of 750km/h. ??If this data is not particularly exaggerated, let alone propeller aircraft such as the MA-60, even the icing test flight of a jet aircraft can be completed with this aircraft. After all, based on past experience, wing icing mostly occurs at medium and low altitudes and at medium and low speeds. There is basically no need to consider ice damage in flight conditions exceeding 750km/h. This is great. Mr. Chang, at a temperature of -30C, wont the water in the pipes freeze? Wallette next to him, as the representative of JAA, didnt know much about these specific technical details, so he just asked based on instinct. But this problem hit Chang Haonans heart. Ms. Valette asked very well, this involves our exclusive technology. ?As he spoke, he patted the shell of the refueling pod and made a crisp sound: "I just said that this injection device contains 68 two-fluid micro-mist nozzles, which are nozzles that can inject gas and liquid at the same time. Under working conditions, water will flow through the inside of the double-layer concentric hose, and the outside will be drawn from the engine. Extracted high-temperature exhaust gas package. On the one hand, this can prevent water from freezing in the air and clogging the pipes. On the other hand, it can also use the principle of ejection to control the diameter of the ejected droplets by adjusting the air supply. ? Lorenzo and Colombo, who were more knowledgeable, looked at each other. This is another piece of equipment whose principle is simple to say, but requires a huge amount of test data to be optimized before it can be put into engineering applications. Just like the previous icing simulation software. It is very difficult to copy it quickly once you get the physical object. It sounds like it can indeed meet the experimental requirements, but I dont know if this nozzle can create a large enough volume of supercooled water and air mass. After all, we have to cover the entire aircraft? ??Lorenzo used a more tactful way to get out what he wanted to know. Chang Haonan could naturally hear the other partys purpose, but this was what he was planning to tell them: "It''s enough. According to calculations, this spray device can form a water mist area with a cross-sectional size of 50 meters x 50 meters at the rear. If three sets of equipment can be installed on the left and right wings and the tail of an aircraft at the same time, then the cross-section can be Expanded to 120 meters x 40 meters, even an Airbus... er, Boeing 747 is enough. " ? He ??almost blurted out Airbus A380, then remembered that he had not decided on the name yet. ?Chang Haonans seemingly casual introduction is actually very targeted. If we say that Chinas commitment to designing an anti-icing system for ATR42/72 is giving it a fish, then jointly conducting research on icing and anti-icing with Europe is giving it a fish. ?Then this plane directly contracted a fish pond. ?This allows Airbus and JAA to bid farewell to the Great Lakes in North America and conduct ice test flights of aircraft in Europe. ?This matter will not be very attractive to the EU that will not be able to support the wall 20 years later, but it was different in the 1990s. The EU these days is a bit like a person who has just come of age. It is eager to prove that it can completely separate from the United States in various fields and at all levels, so it urgently needs this kind of contracting fish ponds. They will definitely be interested. After all, the world has been suffering for a long time. Thats right, Chang Haonan is planning to sell his system! Mainly because he knew that in about five or six years, Boeing would use a KC135 to modify a similar product. Then the French, who also owned the KC135F, quickly caught up with the progress. ?Mainly AIT aircraft can be used for decades after being built. The water spray system is sufficient anyway, and there will be no technological iterations. There is no need to hold on to Boeing in the end. Sure enough, after hearing Chang Haonan''s answer, the muscles on their faces twitched slightly, apparently trying to suppress their overly excited expressions. ?Probably the same time Jim Harker died halfway through the memoirs of the former prime minister. In short, after finishing todays visit, Lorenzo found Schneider who had a great time that evening. Their aircraft will allow us to completely solve the FAAs monopoly problem on natural icing test flights! Perhaps because he was afraid that he was not convincing enough, he added another sentence: The water mist area of ??120 meters 40 meters can even be used to complete the test of our planned A3XX aircraft! A3XX, the predecessor of the future A380. You mean we can have long-term cooperation with China in natural icing test flights? ??Schneider, who was a little tired from a day of visiting, turned out to be interested: But what is the difference between this and cooperation with the FAA? The initiative is not in our hands anyway? Lorenzo shook his head: No, I mean, we can buy a plane like that and take it home, and we can do the test flight ourselves! (End of this chapter) Chapter 224 Test starts Chapter 224 The experiment begins It is absolutely impossible for Airbus to buy aircraft from China. ?Schneider rejected it directly without hesitation: Let alone China, even Boeing cant do it. As a manager, he needs to consider many more issues than Lorenzo, who is purely technical: "Not to mention that from a legal perspective, it is impossible for a civilian Tupolev bomber to pass operational approval. Even if we take a step back and the JAA gives special permission on this matter, we cannot afford to lose that person. Its like the president of Mercedes-Benz will never travel in a BMW. At least not until retirement. But its really important to us ?Lorenzo scratched his head. He also realized that the other party was right. And even if you dont consider the face issue, the modification potential of a medium bomber is indeed not large enough. If three nozzles are really installed at the same time, the water tank in the aircraft may be exhausted in less than a few minutes, even if the test time required by SLC conditions is far away. If it is shorter than normal, there is a high probability that a complete test flight will not be completed. ?In addition, we must also consider that it was not many years before the end of the Cold War. If European people saw a plane that looked almost exactly like Figure 16 passing over their heads, it would most likely cause panic. Anyway, lets not rush this matter. After all, before the test results come out, its possible that the Chinese are just bragging. ??Schneider stretched his aching body and yawned again: I think its not too late to discuss this matter until were sure how credible what they said is, dont you think? Okay, youre right. Lorenzo, who himself also realized that his opinion on buying a plane was somewhat unreliable, could only nod his head: But Im already looking forward to the day of the test flight. Two days later, on the tarmac of Yanliang Airport. ?After three days of continuous modifications day and night, the second prototype of the MA-60 and the H-6AIT icing water jet were parked not far away from each other. The surrounding auxiliary vehicles have completed their work and are currently being evacuated in an orderly manner. For engineers from the 603 Institute and the 182 Factory, this is not the first time they have experienced natural icing test flights. They went to Nanzheng to conduct a full-process test two months ago. Only this time, the test faced by the aircraft and the pilots was significantly greater. ?Lin Guofan originally wanted to get on the H-6AIT to operate the water sprinkler in person, but Zhu Lan strongly opposed it. The two argued about this many times, and it ended with Professor Lin finding it difficult to fit into the narrow tail turret due to his stout figure. Eventually one of his students volunteered to take on the task. Speaking of which, why cant the refuelers position in front of the tail turret be set up as a water spray operator? The space there is obviously larger and the visibility on both sides is better. ?Looking at the two planes undergoing final preparations, Lin Guofan put his hands in his pockets and looked still regretful that he could not fly to the sky in person. "Well... that position was originally a radio operator. Because the icing test process requires close cooperation between the two aircraft and the tower, we reset this position on the AIT model, so the only thing left for the controller is the past The tail gunner''s position." ?Chang Haonan shrugged and explained. At this time, three Europeans who had changed into aviation industry cotton coats also came over from a distance. Similar to Colombo when he came to China for the first time, Valette was initially unwilling to put on these bloated clothes. ?However, after experiencing the February morning in northern China, I decisively gave up my tough words and took off my slim-fitting windbreaker. Lin, Chang, you two...wont you go up with us? ?Colombo looked at Chang Haonan and Lin Guofan, who were chatting on the side with their hands folded and had no intention of boarding the plane. Their already pale faces turned even paler. Theres no other way, we want to go up too. Chang Haonan raised his sleeves and gestured to the MA60 parked on the other side: "But I have said before that according to the simulation results, the operating conditions of this test will reduce the lift of the aircraft by about 22%. Considering that some safety margin must be left, the aircraft can no longer accommodate the two of us. A man." What he said was clear and upright. Colombo opened his mouth several times in a row, but he didn''t think of how to answer. ?At this time, the H-6AIT, which had completed preparations, had slowly started up with a huge roar, leaving the parking space and taxiing towards the take-off runway. Believe me, everything is calculated and there will be no problem. Looking at Colombo with colorful expressions, Chang Haonan patted his shoulder and comforted him: Well, in order to express my blessing to you, I will personally send you to the plane. You gave this plane new wings? As the distance got closer, Colombo, who was very familiar with MA 60, quickly discovered the difference. ?The large-aspect-ratio wing with winglets that provided a huge performance advantage is gone, replaced by an ordinary wing that looks unremarkable. Of course, you dont think that an aircraft can fly in harsh climates that far exceed the lower limit of SLC conditions without paying any price, right? Chang Haonan replied in a matter-of-fact tone: "Actually, this type of wing is customized for some customers who have special anti-icing needs. Under normal circumstances, such exaggerated performance is not needed at all. This time it is a coincidence that you can catch up with the opportunity. Its rare. ?Chang Haonan deceives people without changing his face or heartbeat. Is that so? Colombo took a look at Chang Haonans calm expression, and finally chose to believe what he said: ?The five people separated next to the aircraft ramp. Then Chang Haonan and Lin Guofan returned to the command center at the tower, while the other three boarded the aircraft and found a seat to sit down. Lorenzo, who couldn''t wait to observe the test, sat directly next to a Chinese engineer who was operating a computer. Since the aircraft''s portholes would also be covered with frost during the icing test, he could only observe the results from the aircraft through a camera placed outside. Observe the condition of the wings in the heading direction. As a cabin designer, Colombo, who is familiar with the cabin environment, sat in the front position, where the noise and vibration felt were relatively small. Wallette chose to sit with him. As the two all-composite, low-noise four-blade propellers began to rotate, the No. 02 prototype gradually began to accelerate. The sound in the cabin is much quieter than the ATR72 I rode in before ?Perhaps out of nervousness, Valette took the initiative to open up the topic for the first time today. Of course, the cabin environment is something we at AgustaWestland are responsible for, and China has also redesigned the shape of the propeller blades to further reduce the intensity of the noise source ??Just as Colombo was explaining to the French beauty beside him, everyone on the plane felt overweight for a moment - The plane has taken off! (End of this chapter) Chapter 225 Huaxia’s research level leads the way! Chapter 225: Chinas research level leads the way! Since the test environment is artificially created with an aircraft this time, there is no need to go through the long and luck-based "ice-finding" process before. Instead, you can fly directly to the preset test airspace. ?So it didnt take long before Colombo could already see the H-6AIT in low-speed level flight on the left front through the port window. I must admit that as an Italian, this is a very novel experience. He knew that when the experiment started, he would no longer be able to see anything through the porthole. After a moment of hesitation, he decided that at least he could not fish the whole time, so he and Valette moved behind Lorenzo''s seat. From their position, the laptop screen can also be seen. The picture is divided equally into six parts. After a brief identification, Colombo recognized that the top two images showed the ice thickness scales on the leading edge deicing sleeves of the left and right center and outer wings, the middle two images showed the full view of the main wings on both sides, and the bottom two images The block image shows the condition of the horizontal tail leading edge de-icing sleeve and the horizontal tail leading edge wingtip. Apparently, a total of 6 cameras are installed outside the aircraft, aiming at the 6 most important positions. Are they so confident in their predictions? Colombo thought to himself as he looked at the high-definition surveillance footage for this era. Since he finally chose to board the plane, it shows that he still has confidence in the anti-icing system designed by Chang Haonan. But the level of the anti-icing system is one thing, and it is another thing to accurately calculate the location and even the shape of the ice. ??If we have to make an analogy, the former is equivalent to using a machete to remove bones. Although it is not easy, it is still within the acceptable range of ordinary people. The latter is equivalent to using the Qinglong Yanyue Sword to carve radish flowers, which is a completely otherworldly skill. Therefore, Colombo''s original expectation was that the Chinese would play some visual tricks. Anyway, during the icing test, there was no way to see outside directly through the side windows. As long as the camera was blurred a little and the angle was a little different, it would be enough. The visual effects are disruptive. Anyway, as long as the plane completes the entire process, there is nothing they can say. As a former project dog, Colombo himself has never painted a pie, so he can understand this kind of behavior of adding a little water. ?Furthermore, cooperation with China is the foundation of his career in Finmeccanica Group. Last night, he had even thought about how to avoid the important points in the report, and finally concluded that he should agree to sign the cooperation agreement. However, look at the current situation... It seems that they are not planning to do any fancy things, but want to do it for real? ?Colombo''s mind is a little confused. On the one hand, the report he thought up in advance after being up half the night last night may be invalid. On the other hand, he is also a little worried that these Chinese people may be overconfident. In case of this kind of sharp picture, if it is played, the only way to rely on him alone can not save it anyway. ?Colombo, who was thinking wildly, raised his head and tried to distract himself by looking left and right. This action caused him to collide with Valette''s eyes next to him. The latter has never tried natural freezing before, and his expression showed some nervousness. ?Several Chinese engineers are conducting final inspections before the icing test. They have rehearsed countless times in the past few days, and they move quickly and cooperate with each other tacitly. For a time, apart from the buzzing sound of the propellers outside, there were only brief Chinese commands left in the cabin. The cloud droplet spectrum probe, two-dimensional cloud particle probe, and two-dimensional precipitation particle probe are working normally! The atmospheric temperature probe, speed sensor, and external image monitoring system are in normal condition! AIT aircraft reports that it is ready for fogging operations! ?Colombo could not understand Chinese, and due to the problem of the aircraft''s capacity, there was no translator to follow him on this trip, but the calm voices of these people alleviated a lot of his worries. Suddenly, the cabin radio sounded simultaneously with the ongoing radio conversation in the cockpit. The difference from before is that this time it is in English. ? ? Several engineers who were walking around just now also returned to their seats as quickly as possible and fastened their seat belts. Get ready to enter the artificial supercooled water mist environment! Countdown 321 Before Colombo could mentally prepare himself, the entire plane rushed straight into the white clouds and mist! According to rough estimates, for every 100 meters of elevation increase, the temperature will drop by 0.6C. At an altitude of 4,500 meters in February, the temperature is -30C! ?At such low temperatures, the water droplets broken up by the high-pressure gas at the nozzle enter a supercooled state almost as soon as they enter the atmosphere. ? Supercooled water is still liquid, but in a metastable state. When subjected to certain external disturbances, it will freeze rapidly. Just like a wing impact at moderate speeds. The average diameter of water droplets is 404.5 microns, the temperature is -31.7C, and the airspeed is 110 meters per second, which meets the SLD test conditions! The Chinese engineer in front specially reported the situation in English. The data can also be clearly seen on the screen of another computer in front of him. It is indeed a true SLD condition! I dont know if it was due to psychological effects, but Colombo even heard the rattling sound of ice forming on the surface of the planes skin. The cabin glass was covered with a thin layer of ice at an almost unprecedented speed, blocking everyone''s view. He had no choice but to turn his attention back to the laptop screen in the row in front. Suddenly, the Italian felt his right hand being grabbed.? ? ? ? is Valette who is sitting next to him. At this time, she closed her eyes tightly and pursed her red lips slightly. She was obviously nervous because of the overly stimulating effect of the show. Heh...woman. Colombo shook his head, but did not throw away the other party. ?At this moment, a French sentence from the front broke the warm atmosphere of this weirdness. Is ice starting to accumulate so soon? Colombo was awakened and quickly concentrated, only to realize that in the ten seconds he had just been distracted, about 10 millimeters of ice had appeared on the leading edge of the main wing! No wonder the two planes had accidents before they barely had time to react... Lorenzo, who was sitting in front, muttered to himself as he looked at the thickness of the ice layer that was growing almost at a speed visible to the naked eye. ??Although the results of the American Eagle investigation have come out, the impact of the cold words on the paper is not at the same level as the shocking images before our eyes. ?Colombo hurriedly used his free left hand to take out the schematic diagram of simulated icing conditions given to them by Chang Haonan the other day from the inner pocket of his coat. ??Although the black and white printed image is not particularly clear, the edges of the ice shape can still be identified through the difference in grayscale. Lorenzo also held up his share of results to the computer. As time passed, clear ice gradually began to appear not only on the leading edge of the wing, but also on the upper and lower surfaces of the wing A type of ice that is irregular in shape and poses a greater hazard to flight safety. The icing location is indeed further aft and is more evenly distributed on the upper and lower airfoils. But judging from the outline, it is quite different from the simulation results on paper. ?Lorenzo and Colombo breathed a sigh of relief at the same time. It does not mean to take pleasure in others'' misfortune. But only part of the predicted results are correct, which is more in line with the reality. Of course, even this is quite impressive, and the simulation results can directly guide the specific design of the deicing system. No wonder the Chinese people are so courageous ?Colombo thought this while preparing to fold the paper again. "etc" Lorenzo''s eyes suddenly widened. On the surface of the original clear ice, loose, white and opaque frost ice appeared again. Such changes made Colombo, who was already relieved, have to hold himself back. Because these newly emerged frosts seem to be growing in a shape similar to the simulation results. No way He raised the piece of paper again and shook Valette''s arm next to him: Annie, Anne? Look ahead! The latter was already pale at this time, but he slowly opened his eyes after hearing someone calling his name. Then he saw Colombo and Lorenzo who were stunned. Are they really exactly the same? C`estincroyableRocambolesque! At this time, the pilots voice also sounded in the cabin: Icing time is 500 seconds, the lift of the aircraft has dropped by more than 20%, turn on the de-icing system! ??When a group of people got off the plane, Chang Haonan noticed that Colombo and Valette''s hands were holding together. ?But its normal to think about it. When people are afraid, their heartbeat will speed up and more adrenaline will be secreted. If there is someone of the opposite **** next to you at this time, it is easy for your own consciousness to mistake it for a heartbeat feeling. ?This is why young couples like to watch horror movies together. ??And the icing experiment just now was much more exciting than a horror movie. Besides, an Italian and a Frenchman, haha. Reasonable, very reasonable. Lorenzo, who was following them, had a completely different style of painting. He was holding a notebook and pen in his hand, recording something quickly. While writing this down, he excitedly said to himself: Its too strong...This is really too strong! (End of this chapter) Chapter 226 They have to thank us! Chapter 226 They still have to thank us! Chang Haonan, who had been waiting on the tarmac for a long time, was a little confused when he saw Colombo and Valette who were the first to get off the plane. In the week since arriving in Haojing, he has made plans one after another, just to defeat these European guys with an impressive show of skills at this time today. And the couple who got on the plane to follow the experiment actually took this opportunity to get together? Damn itthey wont be busy talking about love the whole time, right? Chang Haonan rubbed the palms of his hands in his sleeves and thought. Even showed a somewhat panicked expression for the first time after his rebirth. He can accept failure of the plan, but never accept failure in this way. You are a master of stupid tricks, right? Fortunately, Lorenzo, who appeared at the end of the team, finally let him breathe a sigh of relief. TNND, it seems that Europeans also have reliable ones... Chang Haonan, who secretly cursed, still maintained a smile on his face and walked enthusiastically towards the test participants who got off the plane. The Chinese engineers who got off the plane had already begun to celebrate each other by high-fiving or hugging each other. To Chang Haonan''s surprise, the first person to take the initiative to talk to him was Colombo, who was still holding the hand of the woman next to him, or strictly speaking, being held by the woman next to him. When the two of them passed each other, he slapped Chang Haonan''s shoulder hard with his free right hand: "Chang, I have to admit that before today, I always thought your statement was watery." Colombo said as he took out the piece of paper with the icing simulation results printed on it again from his pocket: I dont understand, how did you accurately calculate the existence of the layer of frost on the surface of the ice, and... not only the location, but also the shape is exactly the same? Seeing the expressions of "I don''t understand" and "This is not scientific" on the faces of the Italians in front of him, who clearly didn''t want to believe it but had to believe it because they saw it with their own eyes, Chang Haonan even thought of what Quentin said on the Conan show. The "awesome" scene. And Im afraid that Colombo will also suffer from the same problem. Fortunately, the other party does not speak Chinese. Its physics, I used physics, my friend. Chang Haonan deliberately replied in an exaggerated tone: As long as you master the correct physical laws and write appropriate algorithms, you can do the same. Also, Im glad you remembered your job when you were on the plane. Speaking, he glanced at the hands held by the two of them. Colombo had just been immersed in the echo of "unbelievable" that came to his mind the moment he saw the final ice form. He was as dizzy as if he had seen someone perform a fireball technique. Only then did he notice his hand. It was unexpectedly held by Valette the whole time. Ahem He coughed twice in embarrassment, then took out his hand and put it behind his back, as if nothing happened: It sounds very simple from what you said. If I hadnt known how complicated ice research is, I might have believed it. Chang Haonans explanation just now is basically a correct nonsense, similar to telling you the basic rules of Go and then letting you play against AlphaGo directly. But he said this on purpose, because he was clearly tempting the other party to engage in technical cooperation. Because this kind of thing is simple in principle but difficult to implement, it is the most difficult to overtake through some tricky corners. A conspiracy! And this is something that Europe cannot refuse. ?At this time, Valette next to him had also sorted out his emotions. Since she was actually paddling the whole way and was not very technical, she was the least directly shocked among the three. Although through the performance of Lorenzo and Colombo, she could also realize that these Chinese people must have developed a very amazing technology, but as a negotiator, Valette still maintained a basic calm: "Mr. Chang, your performance today is indeed perfect. As an individual, I am very grateful to have this opportunity to experience the entire process of an aircraft being covered by ice in the cabin. I believe that such an experience will be beneficial to our management." Regarding the future work of JAA, as for the requirements you raised in the last round of negotiations, we will give a final answer after further discussion. An official statement finally restored a sense of "negotiation" between the two parties. After all, I almost forgot where I was sitting in Colombo just now. ?However, this feeling only lasted less than five seconds before it was broken again by Lorenzo who came forward later. Chang, this is simply magic. The old professor held up the piece of paper in his hand and said: At the current level of research, even if the numerical calculation method is used backwards when the ice shape is known, there is no way to restore it to such a similarity! The second sentence that follows is even more important: "I have a merciless request. I hope you can make a copy of the images taken by the six cameras on the plane just now. I want Schneider to see what real icing research is. Believe me, there is nothing. Its more convincing than those videos! ??Valette is just a black eye Good guy, just now Colombo just tilted its **** towards the Chinese side, old sir, you are already at the level of directly embroidering the red flag... Correspondingly, Chang Haonan, who had watched the whole drama, was so excited that he wished he could apply for a medal for Lorenzo. ?He spent his whole life trying not to laugh out loud, almost causing himself internal injuries: In principle, this kind of video should not be released to the outside world. Chang Haonan replied with difficulty: But considering our partnership, I can apply to my superiors for an exception, and someone will send the videotape to you in a while. In normal times, this kind of nonsense would probably not fool anyone. But now Lorenzos mind was already occupied by the scene on the plane just now. He had no time to analyze these, so he immediately took the initiative to shake hands with Chang Haonan: Thank you so much for your permission, I will keep that tape for the rest of my life if I can, its amazing Youre welcome, just think of it as a gift to wish our cooperation a success. Chang Haonan held Lorenzo''s hand tightly with both hands and bit his lip - His mind is now filled with the famous scenes in Uncle Benshan''s "Selling Kidnappers". Valette, who almost gave up treatment, couldn''t stand it anymore and quickly dragged the other two people away from the scene. After confirming that the three of them were far away, Chang Haonan finally couldn''t hold it any longer. O What are you laughing at? ?Lin Guofan came up from behind and asked curiously: Why dont you go celebrate with everyone? ??The student who volunteered to fly could no longer stand on his legs after emerging from the tail turret, so he had been bombarding 6AIT without knowing what had just happened. Nothing, Im thinking about what terms to add to the agreement during the next negotiation. Chang Haonan straightened up and answered. ?This answer stunned Lin Guofan: It wouldnt be too much to add more clauses, right? After all, in his view, it is extremely rare to get the other party to agree to mutual recognition of airworthiness for regional aircraft. Chang Haonan shook his head: Its too much, they still have to thank us... (End of this chapter) Chapter 227 Big aircraft industrial park! Agreement reached! Chapter 227 Large Aircraft Industrial Park! Agreement reached! ?On the other hand, Lorenzo finally got the few videotapes he had been thinking about before leaving Yanliang Airport. Since uninvited people are not allowed to enter here, Schneider and other key members of the European delegation can only wait outside. ?These people could only see two planes taking off one after another and landing after a while. At least they all flew back. But the specific situation is still unknown to everyone. After all, the entire icing test was completed at an altitude of 4,500 meters. ?So after seeing Colombo and the other three people appearing at the airport gate, the group of foreigners waiting in the lobby suddenly stood up and swarmed around the exit. How is the test going? Have the Chinese really conducted experiments under SLD conditions? How far did the aircraft icing conditions differ from their predictions? What is the H-6 that took off with me for? ?Everyone had questions they wanted to ask. There was a lot of noise and various languages ??were intertwined, making it impossible to hear anything. In the end, Schneider took control of the situation, and as a representative asked the question that everyone was most concerned about: Based on what you saw on the plane, what kind of research are the Chinese people doing on icing and anti-icing? ?This question is quite technical, and Colombo is very self-aware and not prepared to answer it. Ms. Valette had given up the treatment and covered her forehead with one hand, signaling Lorenzo to have a quickie. So everyone looked at the old professor and Airbus engineer who was holding a large box of video tapes in his hand. Lorenzo thought for a few seconds, then shook his head. ?This reaction relieved Schneider: Let me just say, the Chinese people were probably bragging before. How can it be possible to make accurate predictions with the current technical level..." ?However, before he could finish speaking, Lorenzo continued: With my ability, it is completely impossible to estimate how high their research level is. ??? ?This answer is obviously beyond everyones expectations. Professor, what do you mean? Someone who was outspoken asked directly. Lorenzos expression kept changing, as if he was hesitant to speak. In the end he just lifted the box in his hand. I cant explain this matter clearly in one or two sentences. Lets go back to the hotel and talk in detail. That afternoon, everyone in the European delegation watched the entire video tape that Lorenzo had brought back in a temporarily borrowed conference room. ?Of course, the three simulation results pictures that Chang Haonan sent to them were also circulated over and over again. So youre saying that they are really far ahead of us in this regard? ??Schneider''s voice was a little dry, and his tone was full of disbelief. Based on the news brought back from Colombo, as well as insinuations from multiple channels, they basically determined that China has certain advantages in the design of anti-icing and de-icing systems. More importantly, it has a complete set of airworthiness certification and testing systems related to anti-icing and de-icing. Otherwise, they would not have sent such a delegation to negotiate with China. But before coming to China, everyones understanding of this advantage basically stayed at the level of definitely better than us, but probably not as good as those in North America. Even before today, the common view was that China and North America might have their own advantages and disadvantages, and could provide an opportunity for equal negotiations with the FAA. As a result, Lorenzo told them directly today that the Chinese peoples research level in this field is not at the same level as Europe or the United States. According to his original words: "Based on my cognitive ability, I can''t calculate how big the gap is between us and them, nor can I estimate how long it will take for us to develop to this level. I can only say that if we don''t cooperate, There will be no possibility of catching up within five or six years. As for the future..." ?Lorenzo thought for a moment: That depends on the development of computer performance. Theoretically, we can use CFD to achieve similar effects, but the amount of calculations is simply unimaginable and is enough for supercomputers to calculate into the 22nd century. So we really need to do joint research with them? Schneider raised his head and looked at the other people, seemingly asking for advice. With all due respect, Schneider. Colombo suddenly interjected: Actually, anti-icing research, especially anti-icing research under SLD conditions, is not usually a particularly important field. "But at this juncture when the FAA uses aviation safety issues to attack us, there is only the lesser of two evils. The Chinese are at least not an imminent threat to us, and Boeing and McDonnell Douglas will merge without paying any price. , but its a fatal thing. Whether it is from the interests of the Finmeccanica Group or from Colombo''s own personal interests, he has very good reasons to promote the smooth progress of this negotiation. At this time Lorenzo also added: "In addition, icing simulation is a field that spans many disciplines. The ability shown by the Chinese people shows that they must also have made great achievements in basic physics and computer science. In short, if we can cooperate with them, we will not Suffer." This time its a real win-win. Schneider''s expression was wonderful for a moment. After Lorenzo said what he just said, he paused for a moment and talked about the AIT aircraft: "In addition, I paid special attention to the conditions during this test. The conditions they simulated using the AIT aircraft were indeed very realistic. The diameter of the artificially produced supercooled droplets was uniform, and the water mist formed could last for a considerable period of time. time, it has the potential to be used for icing test flights of larger aircraft! ?For a moment, Valette even worried that Schneider would lose his breath during these rounds of bombings. ?However, the latter did not really just focus on sightseeing in the past few days. After thinking for a while, he came up with his own plan: As for the AIT aircraft, it is not feasible to directly purchase an improved version of Figure 16, both technically and based on market feedback. But after communicating with the Toulouse headquarters in the past few days, I believe that we can produce one or two of our own AIT aircraft based on the Airbus A330 or A340 platform by purchasing subsystems or technologies from China. ?After watching the video Lorenzo just shot, everyone also knows what this AIT aircraft is. So another Airbus representative went on to say: Their H-6AIT looks a lot like an aerial tanker, so I thought... maybe we can also develop an aerial refueling model during this process? I think many countries will be very interested. This is an eye-catching proposal. ?So someone responded immediately: If this is the case, then I suggest choosing the A330 platform. The twin-engine configuration is more economical and will be more competitive than the KC135 or KC10 In short, this matter has been settled. ?In the third round of negotiations two days later, Schneider predictably put forward a requirement for the introduction of six AIT systems to retrofit two A330AITs. Even though Chang Haonan had been vaccinated in advance, Huai Guomo almost couldnt help but agree immediately when faced with this condition This is exporting aviation products to Europe! Its still Western Europe! The famous Airbus actually wants to buy core subsystems from China! ?Except for a few people who had already been mentally prepared, other representatives from China were even stunned by this request. The first reaction was to look eagerly at Huai Guomo and Chang Haonan in the middle. ?Hurry up and agree to this? Its definitely a big deal that will be on the 7pm news! ?However, after all, Huai Guomo had experienced hundreds of battles, and finally restrained himself, secretly signaling Chang Haonan to make up his mind. Although the AIT system is not on our list of technologies prohibited from export, it is not easy to go through the approval process for external sales. The latter cleared his throat, and his first words stunned many people in China. What is the list of technologies prohibited from export? Why didnt I know there was such a thing? Fortunately, the people who can sit here still have some professional skills in negotiation. Moreover, now everyone can see that their side has the advantage and quickly realize that they are preparing to raise conditions. Sure enough, Chang Haonan continued: But if the name of export is changed to cooperative production, then almost the entire process can be omitted, and work can start immediately. With all due respect, Mr. Chang. Schneider shook his head: You have indeed made great achievements in the field of icing and anti-icing, but as far as the level of aviation manufacturing is concerned, I dont think it is possible to carry out the cooperative production you mentioned. ?This is not a lie. For an aircraft of the A330 level, let alone production, China currently cannot even do final assembly immediately. After a pause, he continued: But if you are interested, then the AE100 project we talked about before would be fine..." ? It must be said that Schneider is quite talented. This is because he can still think of talking about the AE100, which has basically cooled down, and prepares to make another fortune. ?However, Chang Haonan directly interrupted: Mr. Schneider, due to changes in the development path of our countrys aviation industry, the AE100 no longer meets our actual requirements, so there is no need to continue talking. There was no need to even mention the matter of asking Airbus to design aircraft according to Chinese standards, so he simply stated his requirements directly: However, although we are not interested in producing AE100, we are very willing to become a parts supplier for Airbus aircraft. With the current development speed of my countrys air transport market, the number of passenger aircraft that need to be purchased in the next ten or even decades will definitely be a huge number. I think Airbus should be very willing to eat part of the cake. And if some parts produced in my country can be used on aircraft sold to my country, I think it will definitely be beneficial to the competitiveness of your companys aircraft models. Of course, you can send someone to verify the suppliers qualifications and the quality of the parts. Schneider did not answer right away because this was not his remit. But both he and Chang Haonan knew that Airbus would not refuse this request. After all, not all parts of an aircraft are full of technical content. What Schneider naturally wants to do is to increase sales by leaving the relatively large parts with low technical content and low profit margins to China. What Chang Haonan thinks is that as long as Airbus experiences the production capabilities of China, the profit-seeking instinct will inevitably prompt them to move more and more production links to China. After all, it was like this in the previous life. He just advanced the process by a few years. On the one hand, although these European standard parts cannot be directly used in future Chinese large aircraft, the experience of engineers and workers can help the development of the future aviation industry. On the other hand, it must be admitted that these days, even the parts that Europeans think have lower profit margins are still a sweet potato for China, and can also solve the urgent mass employment problem. Hence, Chang Haonan is preparing to take this opportunity to lay out a large aircraft industrial park in advance! Its time to get the J-10 (End of this chapter) Chapter 228 The organization is testing me! (2-in-1) Chapter 228 Organization This is testing me! (2-in-1) That evening, the European delegations reported the situation to their superiors. ?Chang Haonan and Schneiders feelings are not wrong. Since all parties involved got what they wanted, they quickly gained a higher level of empowerment this time around. ?As a result, in the fourth round of negotiations that followed the next day, China and Europe finally reached an agreement on the basic content of the agreement. ?However, this kind of thing involving more than a dozen countries and several very large international companies is not about going to the wet market to buy vegetables. Even with Chang Haonan''s efforts (and of course deception), the two parties are generally in a state of meeting each other halfway, but it involves the formulation of new standards, the selection of new suppliers and even the formation of new business alliances. The legal and technical details are overwhelming and far beyond the scope of the current two delegations. So all they can do now is to reach an "intent agreement" similar to project planning or research outline, and first tie the partners together with a piece of paper. As for the subsequent details, naturally professionals in various fields will be responsible for completing them. . As it happens, the professionals related to icing and anti-icing research are Chang Haonan and Lin Guofan. And this is also the most urgent matter at the moment Once such a high-profile multi-party cooperation officially begins, it is impossible and unnecessary to keep it as airtight as during the negotiations. Therefore, before the FAA reacts, they must counterattack in the aviation safety field where they think they have the advantage. An army. So Chang Haonans work in Haojing is not over yet. However, unlike the previous situation where he had to take on the main role, in the follow-up negotiations, he only had to sit on the scene and be a mascot of the town. To a certain extent, it was a short vacation, which made up for the lack of Spring Festival. After that, the rest time was wasted by being taken out of the house. At the same time, due to Chang Haonan''s operation, many contents were added to this agreement that did not exist in the original plan. ?For example, Airbus will select some Chinese companies as suppliers of its subsystems. In subsequent contacts with Airbus executives, the latter even stated that as long as China can provide enough orders, they can consider building the planned "Airbus Asia Final Assembly Center" in China. If combined with Chang Haonans idea of ??a large aircraft industrial park, the whole thing would have been a commendable event throughout the 1990s. ?Hence, the levels of representatives from both sides who came to Haojing were getting higher and higher. ??The previous head of the delegation was only Huai Guomo, deputy director of the Science and Technology Commission, but now even some leaders of ministries and commissions came as ordinary members. Just like Ding Gaoheng. Chang Haonan was enjoying his leisure time during this period, and he didn''t pay any specific attention to the long list of new delegations. Therefore, when he heard someone calling his name while driving on the street after dinner one day, he couldn''t even pass the sound immediately. Identify the other persons identity. Director Ding? Chang Haonan turned around. Because his brain had just been in a state of relaxation, he hesitated for about half a second before he recognized the person in casual clothes in front of him as Ding Gaoheng. What a coincidence, you also eat after meals? ??The latter''s tone was relaxed, as if it was a casual chat after an ordinary encounter. "Uh... Director Ding, do you have something to do with me?" ?Chang Haonan is 100% sure that todays meeting is no accident. Because Hou Ding Gaoheng was accompanied by another person who looked about the same age as him, but his clothes were not casual at all. ??Although I cant recognize this persons identity, judging from his temperament, he is a big shot with dual identities of scholar and leader. Evidently he came prepared. There is indeed something going on, but Im not the only one looking for you. Ding Gaoheng was not surprised when Chang Haonan pointed out the purpose of his trip. He just turned his head slightly and introduced to the person next to him who had never spoken before: This is the one youve always wanted to meet, Lao Dus student, Chang Haonan. Hello, Comrade Xiao Chang, my name is Song Jian. ?The other party came forward, took the initiative to shake hands with Chang Haonan, and said in a slightly funny tone: I have heard your name from Director Ding and Academician Du many times before, and I have always wanted to meet you. But I heard that you are a busy man and have been away from the capital from the second half of last year to now, so I had no choice but to come to Haojing in person. ?Song Jian may have really just been joking when he said this, but for Chang Haonan, it was not easy to accept. ?But before he could speak, Ding Gaoheng next to him patted the former on the shoulder: "Hey, Old Song, you are not being honest. I have told you several times before about Xiao Chang''s return to the capital. It was obviously because you had something to do and you couldn''t come to our Science and Technology Committee. How could you pass the responsibility on to this young comrade? Where''s your body?" Ding Gaoheng and Song Jian were born in the same year. They also went to study in the Soviet Union at the same time. After returning to China, they worked together at the Second Branch of the Fifth Research Institute of the Ministry of National Defense, my country''s first missile research institute. They had known each other for a long time and had a good relationship. Therefore, they later After being exposed, the reporter just waved his hands cheerfully: Well...I am the director of the National Science and Technology Commission. It is hard to make a special trip to your Commission of Science, Technology and Industry for National Defense to meet with someone..." After exchanging pleasantries, the three of them started to walk on the road together. Comrade Xiao Chang, I heard from Lao Ding in the past two days that it was you who came up with the idea of ??building a large aircraft industrial park during negotiations with the European side? After chatting for a few words, Song Jian went straight to the topic. "Yes, my idea is to rely on Airbus and the more orders from Party A that may be obtained in the future, to focus on developing a group of companies that have the ability, or at least the potential to become upstream suppliers in the aviation field, and pool their strength into Together, we will focus on key technologies and create a demonstration industrial cluster that can achieve large-scale effects! ?Chang Haonan nodded and directly moved out the report about a certain aviation industrial park that he remembered from his previous life. As someone who has experienced the 2020s, even if he has never been involved in a publicity position, the Internet slang in his mind is enough to cope with some scene talk: On the one hand, this is to prepare some technical and industrial development for our own large aircraft manufacturing, and on the other hand, we also want to cut a piece of the big cake of civil air transportation! ? ? These words were not considered pretty in later generations, but Song Jian nodded repeatedly. After all, in the 1990s, industrial clusters were still a new concept in the world: Exemplary industrial cluster...not bad...it is indeed a jack of all trades. It seems that if our Comrade Xiao Chang reaches the publicity post one day, he will also be able to play a big role!" ?This was originally just an unintentional sigh, but Ding Gaoheng next to him seemed to suddenly remember something: You really dont say anything, Lao Song. Last year I accidentally read a commentators article titled How to Allow the Air Force to Achieve Freedom of Intercepting Beyond Visual Range. It seems to have been inspired by Comrade Xiao Chang. About the matter of the Large Aircraft Industrial Park, the three of them had been talking from the roadside of Factory 172 to a conference room, and the time lasted until that evening. Comrade Xiao Chang, I am very surprised that someone can come up with such a grand and industrially guiding idea. Song Jian, who was sitting on a sofa and holding a tea cup, sighed: But I didnt expect that the person who came up with this idea was actually you. ?This sentence really made Chang Haonan a little confused: Director Song, where do we start with this? The first time I heard your name was from Lao Ding at a high-level discussion on the development direction of the civil aviation industry. When Song Jian said this, he took a tactical drink of water and paused: "Old Ding''s... Oh, actually, it may be that your idea seemed very radical at the time. Although it is a more euphemistic way of saying it, it is essentially equivalent to overturning the various standards accumulated from the MD82 to MD90 projects in the past ten years. , so theres a lot of resistance. It wasnt until the end of last year, when McDonnell Douglas was suddenly acquired by Boeing, that the resistance it encountered finally became smaller. "After such a process, many people, including me, believed that you would be opposed to the plan to introduce the Airbus assembly line. But later we found out that it was you who proposed the whole thing. . ???After hearing this, Chang Haonan suddenly realized. This is "taking sides". ? Its just that the Science and Technology Commission behind him has been smooth sailing during this period and has almost completely captured the entire aviation industry system, so he has no awareness of this. After all, we are surrounded by our own people. ??If Chang Haonan prepares to shine in the field of aviation industry all his life, there is nothing wrong with it. But not long ago, he was still thinking about how to extend the scientific research results he had developed and the subsequent scientific research results to more fields. ??If it is labeled in such a way, it will be very detrimental to future plans. Director Song, this large aircraft industrial park is completely different from previous McDonnell Douglas cooperation projects, including Airbuss AE100 project that has no sincerity at all. ?Chang Haonan knew that he should not express his position in a hurry at this time. On the one hand, the Science and Technology and Industry Committee is indeed the most solid backing for him to exert influence. In the presence of Ding Gaoheng, only a fool would choose to draw a clear line. On the other hand, although he has no impression of Song Jian, the director of the National Science and Technology Commission, since Ding Gaoheng can bring him out alone to meet him, it means that the two people should at least have the same attitude on core issues. So he still chose to discuss the matter from a technical perspective: "Whether it is the domestic MD90 or the AE100, a big premise is that for this model we must switch the development of the entire aviation industry, at least the civil aviation industry, to other people''s tracks and become a member of other people''s systems. This means We have to lose our autonomy to a considerable extent. For example, when McDonnell Douglas cooperated with us, they directly asked us to renovate the factory buildings and production lines in Shanghai, directly wiping out everything we accumulated during the Yunnan 10 period, so don''t say this If the two projects cannot be implemented, even if they can be implemented, it will be a loss-making business in the long run. "But this time, Airbus did not specify what we are going to do. According to the supply agreement, as long as the quality of the parts we provide meets the standards, they will agree to use them on passenger aircraft sold to our country. We and the Europeans are in a reciprocal exchange. , Its just a business deal and it will not damage the development of our own aviation industry, so I naturally have no objections. In fact, this has also been Chang Haonans attitude all along: The technology itself is irrespective of its source. ?In any case, there is certainly nothing wrong with moving the passenger aircraft final assembly process that was originally done abroad to China. The problem lies in the fact that some people are trying to gain self-respect from foreign countries and want to completely kill the independent aviation industry by taking advantage of the opportunity of producing foreign models. In the final analysis, China''s civil aviation industry, at least for a long time in the future, will inevitably have foreign models as its main aircraft. ? And even if the countrys passenger aircraft series develops in the future, it does not mean that it must use a 100% domestically produced fleet A single model certainly has benefits such as security and convenience, but it also means that risks cannot be shared, which is equivalent to putting eggs in one basket. For example, in the previous life, after the Boeing 737MAX was grounded due to structural risks related to flight safety, companies such as Ludao Airlines that use an all-Boeing fleet were caught off guard and had to urgently purchase Airbus A320neo. To train and recruit relevant engineering and technical personnel, it is better to use both models from the beginning. ?Havent you seen that airlines in the United States and Europe will also purchase models produced by each other (of course there are also airlines like Alaska Airlines that are pure Boeing). In this case, it is better to keep part of the profits in the country. ?Assembling airplanes is better than making shirts and socks, right? In the future, China will even be able to provide various subsystems and components to North American OEMs that use imperial specifications. Now anyway, Europeans still use metric units... ?Sure enough, after hearing Chang Haonan''s explanation, both Song Jian and Ding Gaoheng''s expressions relaxed a lot. "Xiao Chang, regarding this large aircraft industrial park, where do you personally think it is more suitable to place it? Shengjing? Haojing? Rongcheng? Or somewhere else?" Ding Gaoheng changed the subject and brought the chat directly to the site selection for the industrial park. Chang Haonan shook his head decisively: "Considering that the messy cooperation between Hufei and McDonnell Douglas has not yet been cleared up, in order to avoid unnecessary associations among people, and of course to avoid some people who want to hide the truth and occupy the magpie''s nest, I personally I think this industrial park should not be placed in these core cities where we have our own model layout. As soon as he finished speaking, Song Jian seemed to have been waiting for this answer, and almost immediately said: In that case, Comrade Xiao Chang, in which city do you think this aviation industrial park should be located? ?This question made Chang Haonan stunned. He looked at Ding Gaoheng next to him and found that the other person was also looking at him with very interested eyes. Even added fuel to the fire: As the proposer of the entire plan, Comrade Xiao Chang, your opinion is also very important. Hand on Chang Haonan directly. First of all, he really did not consider the location of the project, because from a technical perspective, it is not important, even if it is located in Tongliao. Secondly, he never thought that the two people in front of him would ask him this question. Because if you think about it, on a non-technical level, the impact of this answer may be too great. This is the aviation industry. Even if it is just starting out and can only do some non-core or even sideline businesses, that is still the aviation industry. In the 1990s, even companies such as daily chemicals, textiles, and electronics factories were prime targets for attracting investment. ??Many state-owned enterprises that are in good operating condition and can actually be sustained have been given away as trading chips in this process. ?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? Now, a large aircraft industrial park is in front of us. How many jobs can this thing bring, how much economy can it stimulate, how many talents can it attract, and how much consumption can these talents promote... ?Chang Haonan doesnt know, but there must be many. So many that he didnt dare to just name a few cities casually. Although the final decision-making power certainly does not fall to him, it does not even fall to Ding Gaoheng and Song Jian. But the sentence just now made it almost clear that his opinion will be stabbed above. This is no longer the era of two bombs and one satellite. Even if Chang Haonan wanted to follow the example of his predecessors who kept their names anonymous, he would not be able to do so. Among other things, all the honors he received outside of school were listed under the MA60 project. The main reason is that at the beginning, no one thought that such a small twin-engine propeller regional aircraft could involve so much follow-up, so Chang Haonan himself, Du Yishan, and Ding Gaoheng all used the MA60 as their actual work The shield comes. So this matter must be known sooner or later, at least by some people. Of course, there is no need to mention the importance of the four words "Up to Heaven to Listen". The organization is testing me... Chang Haonan thought to himself as he looked at the two old foxes smiling brightly in front of him. (End of this chapter) Chapter 229 Putting burdens on young comrades Chapter 229: Putting burdens on young comrades Regarding the proposition given just now, Chang Haonans final answer was that he hadnt thought about it yet. Not only is it an excuse, but it is also true that I didnt think carefully about it. It is true that there was an Airbus aircraft assembly line in Jinmen in the previous life, but it was far from the scale of forming an industrial cluster, and it has no reference significance. Before Chang Haonan was reborn, the aviation industry was indeed preparing for a new large aircraft assembly base, but it was to serve China''s own model C919, so the candidate list was naturally all cities with already developed aviation industries such as Fuyan and Xinzheng. , Shengjing, Rongcheng, etc. are contrary to the principles he set before. But apart from these cities where he often travels on business, Chang Haonan really didnt go to many other places before his rebirth. It is no exaggeration to say that the success of the industrial park can even directly affect the development speed of subsequent domestic large aircraft projects - Superior leaders are also human beings and they also need confidence. If even an aviation industry base whose main business is to provide supporting services cannot be established with the strong support of the state, then when faced with the subsequent greater investment demand for domestically produced aircraft and the slower speed of transformation of achievements, it is inevitable that drummer. So even without taking into account any non-technical factors, this is a difficult decision to make. Whats more, the development of the national economy has been one of Chang Haonans key considerations from the beginning. ??If he considers some selfish reasons, he would like to put this industrial park in a non-coastal area. After all, judging from the development situation in previous generations, coastal provinces, especially the eastern coastal provinces, are indeed relatively developed. Even an additional aviation industry cluster can only be regarded as the icing on the cake. But for some inland areas, it is a timely help. However, things are not that simple. The unsuccessful experiences of Guifei and Shaanxi have shown that arranging high-end industries in remote areas will only reduce their attractiveness. Not only will they fail to stimulate the local economy, but they will also detract from the industry itself. Get a ride in. The trade-offs involved are impossible to determine in a flash for an ordinary engineer who has only been a project leader in his previous life. ?Most people who have been in technical positions for a long time have a common characteristic, or it can be said to be a shortcoming, that they are good at planning but not good at making decisions. The same is true for Chang Haonan. Technology often has an optimal solution or at least a better solution. In fact, it rarely really requires the so-called "decision-making power". Choosing between a clear choice between good and bad requires no decision at all. But if you want to have greater influence, this is an indispensable part. The system cannot help in this regard after all. Can only be overcome by himself. After hearing Chang Haonan''s answer, Ding Gaoheng and Song Jian, who were sitting on the other side, both looked like "it''s just as I expected." You, boy, are indeed a student that Du Yishan can like. Ding Gaoheng leaned his upper body on the sofa, assuming a sitting posture like a boss after completely relaxing: Although there is still a gap between the flexibility of the body and Lao Dus back then, in terms of the sensitivity of positional awareness, I can basically learn it as a master. ?This passage obviously involves some of Du Yishan''s past history. Although he is very eager to gossip in his heart, Chang Haonan knows that now is not the time to ask this. He did not answer, because Song Jian obviously had something else to say. Sure enough, the other party followed Ding Gaoheng and spoke: "Xiao Chang, the matter of the Large Aircraft Industrial Park is indeed very involved. I can understand your caution in this matter. For an individual, it is indeed a good choice to protect yourself wisely." Chang Haonan was not surprised that part of his thoughts had been seen through. The two people opposite had never experienced any big storms. If they couldn''t even see this, it would be a ghost. "But have you ever considered that, on the one hand, as the proposer of the entire project, you have been in this bureau from the beginning, and it is impossible for anyone to replace your role in it. In fact, if not Because we really cant find a position for you before graduation, you may even directly participate in the final decision-making. On the other hand, Comrade Chang Haonan. Song Jian paused for a moment when he said this, and he directly called Chang Haonan by his full name, and his tone was more serious than before: "You should also realize that when Director Ding and the Science and Technology Commission took over the baton of the entire civil aviation industry, you are no longer just a technician engaged in research. We are now in a rapidly developing but blind During this period, the struggle over the path forward was even more intense than the competition in the technical field, and the aviation industry is just one area where the contradictions are more obvious. I think you should be very clear about this. " "The position of the right to speak is there. It doesn''t exist just because you close your eyes. This is the same as fighting. If we don''t occupy the position, the enemy will occupy it. At that time, the situation will be passive. " ?This statement is very straightforward, but it has not revealed the identity of the so-called "enemy". Given Song Jians identity and position, the most he can say is this. Chang Haonans previous speculation was obviously correct. He should stand with Ding Gaoheng on the issue of whether to be independent. As for the location of the industrial park, Im not worried about that. ??The dignified director of the National Science and Technology Commission has already spoken out to this extent, so Chang Haonan has to take a stand no matter what. What''s more, those few words Song Jian just said reminded Chang Haonan. ?Staying silent is not a solution to the problem, it is just equivalent to giving up the right to speak to others. Since he had already decided to do something big when he was reborn, there was no reason to back down when things came to a close, whether it was for public or private reasons. "After all, this matter is related to the layout of the entire national economy. Even if I provide suggestions, I cannot rely on patting my head. So I need some time to think about it. But please rest assured, the two directors, I will never give up on maintaining the independent development route." Back off." This last sentence obviously hits the key point. With your words, we feel relieved. Ding Gaoheng nodded with satisfaction and took up the conversation again. After a moment of hesitation, he suddenly said to Chang Haonan in a slightly lower tone: Besides, this time Lao Song and I are not trying to embarrass a young comrade like you by relying on our old age, but the higher-ups wanted to put a burden on young comrades like you during the meeting a few days ago. Xiao Chang, I think you should know the meaning of this sentence. As soon as the words fell, the entire conference room fell into silence. ?Chang Haonan could hear his own heartbeat. Of course he knows what this sentence means. What follows "to bear the burden" is usually "to build a platform" and "to pave the way". (End of this chapter) Chapter 230 "973" plan Chapter 230 973 Plan ??Ding Gaoheng can only say this much about this kind of thing. As for how high this "top" is, Chang Haonan can only guess. In short, the round of dialogue just now was obviously a bit of a test and temptation. Judging from Ding Gaohengs reminder just now, Chang Haonan feels that his performance should not be bad. ??Its just that even he didnt expect that the follow-up to this matter would come so quickly ?After Chang Haonan digested Ding Gaoheng''s hint just now, Song Jian actually started a new topic on the spot. Comrade Xiao Chang, I came to Haojing to see you this time. Actually, I have a second matter. Is there anything else? ?Chang Haonan felt that his heart might not be able to bear it. Dont be nervous, this time its not that complicated. Its basically a purely technical issue that you are familiar with. Looking at Chang Haonan who looked like a formidable enemy, Song Jian explained with a smile: "Just in the past few days, superiors have decided to use our National Science and Technology Commission as the competent unit to carry out a key basic research and development plan aimed at solving major scientific issues in national strategic needs. The plan is to start from the second half of this year or next year. Mainly for basic scientific research in cutting-edge high-tech fields. As for the scale and level...it will not be smaller than the 863 plan, and it should even have a similar official abbreviation, called the 973 plan. After finishing his words, Chang Haonan had no obvious reaction. On the contrary, Ding Gaoheng was so shocked that his eyes widened: Are you going to make such a big noise? ??He had roughly known about such a rumor before, but he only thought it was a medium-scale plan at the ministry level. However, according to what Song Jian just said, the State Science and Technology Commission is only the competent unit and main implementation department, indicating that the level of the plan is even higher. As for the benchmark 863 plan, it was even more unexpected. ?That is a national plan that will definitely enter the history books. Song Jian nodded slightly: "The current expectation is that it will continue for three to four five-year plans, that is, by the second decade of the 21st century, it will not only target domestic frontiers, but even include a number of achievements in the mainstream direction of the world''s scientific development frontiers. The important and original achievements must be kept secret from the two of them, and the superior leaders have great expectations and concerns about them. What about the specific research scope? Ding Gaoheng said seriously. Old Ding, dont worry, this is exactly what Im going to say next. ?Seeing his reaction, Song Jian smiled and waved his hand: "Currently, a total of 8 key parts have been demarcated, including agriculture, energy, information, resources and environment, population and health, materials, comprehensive intersection and important scientific frontiers. The comprehensive intersection part includes key science in the comprehensive field of engineering, technology and science. question." "However, as Xiao Chang said just now, such a big matter cannot be decided at once. It must be fully demonstrated in advance. Therefore, from a cautious perspective, our Science and Technology Committee hopes to consult some professionals for their opinions. Lets see what research directions can be included. "I am so anxious to meet you, Comrade Xiao Chang, because of this. The several projects he has recently completed range from fluid mechanics to structural mechanics to control science, thermodynamics and even meteorology, which are fully in line with multi-disciplinary Cross-cutting characteristics. Soam I the professional being consulted? ?Chang Haonan looked calm on the surface, but he was still quite happy in his heart. ??Its almost like Im dozing off and I give you a pillow. The key basic scientific research plan mentioned by Song Jian is naturally the 973 plan that he has been thinking about since years ago. As the name suggests, this project was first proposed in March 1997. ?If you calculate the time, it is right now. Song Jian nodded: "Yes, in the field of multi-disciplinary interdisciplinary, China is still just starting to form a complete theoretical system, and your research covers a wide range of topics and is considered to be the most recent one. Therefore, as the competent authority of this institution, The person in charge, I hope you can give some specific opinions. "I see..." Chang Haonan felt enlightened and quickly introduced the Seiko plan, which was now basically on the right track: "Actually, at the end of last year, the 410 Factory in Shengjing and I felt that the current domestic basic manufacturing field was weak, and applied to the Science and Technology Commission for a project focused on improving precision machining capabilities, called the Seiko Plan, which should be considered Part of the integrated field of engineering technology science. Is there still such a thing? ??This topic really aroused Song Jian''s interest. He sat up straight and looked at Ding Gaoheng next to him with questioning eyes. Obviously, he had not heard about the Seiko Project from the latter. From a small perspective, Song Jian and Ding Gaoheng, who have a very good personal relationship, do not even know the status of key projects in each other''s departments. This is obviously one of the many unfavorable consequences of separation. , which is also the part that needs to be optimized in the future. This is indeed the case. I specifically requested expedited approval for this project at that time. Ding Gaoheng nodded, indicating that he knew about this matter, and then replied with a helpless expression: "But before you came out today, you were so mysterious that you never told me what key basic scientific research plans your National Science and Technology Commission has. Our Science and Technology Commission has tens of thousands of projects and plans underway at the same time. How could we know you wanted to hear this? ? ??Song Jian had no choice but to retract his somewhat accusing gaze after such a clear explanation, and looked at Chang Haonan again: So, Comrade Xiao Chang, I wonder how you plan to connect this Seiko Plan with the 973 Plan that our National Science and Technology Commission is preparing? ??If there was someone else sitting in front of him, Song Jian would not even ask this question. Because the answer is nothing more than to revise the original research content and add both sides at the same time. There are no rules prohibiting this. As long as enough results can be delivered in the end, it doesn''t matter even if the same person joins several more projects in the same research field. ??However, from Song Jian''s limited understanding of Chang Haonan, it can be seen that the latter is a person with a very flexible thinking, otherwise he would not have turned what was originally just an ordinary cooperation negotiation with Europe into what it is now. So he was quite looking forward to the other party''s answer. And Chang Haonan did not disappoint him. "The Seiko Project itself is something that focuses mainly on the application technology level. The two main results it has achieved so far are the soft abrasive polishing machine that Comrade Han Youde of Shengjing No. 1 Machine Tool Factory and I were mainly responsible for completing. The other is the later Strictly speaking, the new milling and planing integrated alloy cutter head developed by another project participant, Hualian Heavy Industry Co., Ltd., cannot be regarded as basic scientific research in nature, and is not suitable for direct participation in the 973 plan. " "However, science and technology in the same field are inherently two sides of the same coin. The Seiko Project can be used as a channel to refine scientific issues, and it can also be used as a window to output technological achievements. For example, in the process of researching new machine tools, we discovered that domestic machine tools The reason why the accuracy is not as good as that of imported equipment is that in addition to the common material problems, or to be precise, the material processing technology problems, the bigger problem lies in the design. " Design field? ?Song Jian and Ding Gaoheng looked at each other. Both of them are engaged in missiles and are not professionals in this field, so they put on a posture of being ready to listen. "Design is of course a very wide range. Our country is not lagging behind in some areas, such as the aerodynamic design of aircraft, and can even be on an equal footing with developed countries in Europe and the United States. But in the field of structural design, especially heavy or high-precision equipment In the field of structural design, there are still obvious gaps. ?When talking about technical issues, Chang Haonan gradually entered the state again: Lets take the machine tool we have studied before as an example. We found that the two most obvious problems are the vibration and stress of the machine bed and spindle during the working process. As a result, the product accuracy and machine tool life are far less than the design expectations. "However, after disassembly and inspection, it was found that the manufacturing accuracy of these two parts did not exceed the design allowable tolerance. We even later ordered parts of the same model with higher precision standards from foreign companies, but the results still did not improve. Finally, after our inspection of the machine tool The simulation of the stress situation under working conditions revealed that there was a problem in the overall design of the machine tool structural parts. Now, the first-class foreign machine tool design companies have begun to use numerical calculation methods to carry out static and dynamic analysis, and use multi-body topology methods to carry out structural design and optimization of high-precision machine tools, but domestic related theoretical research is still in its infancy. " ??After Chang Haonan finished speaking, he noticed that Song Jian gave him a pupil tremor on the spot. In fact, the previous content related to machine tools was indeed summarized by him during this period, but the subsequent summary of the research direction directly copied the naming of the second phase of the previous 973 plan... But it doesnt matter, different paths lead to the same destination. ?This time it was Ding Gaoheng who reacted first: "Xiao Chang, although I don''t know much about the field you just mentioned, this uses numerical calculation methods to carry out statics and dynamics analysis, and uses multi-body topology methods for structural optimization. Isn''t it... you are better at it? part? Chang Haonan smiled and rubbed his hands in embarrassment: Bu Cai has indeed dabbled in this area, and has achieved some research results, such as the design improvement of the J-8C wing structure and the turbojet 14 high-pressure compressor structure Song Jian''s pupils trembled even more violently. (End of this chapter) Chapter 231 Dean, I want to write a textbook! (2-in-1) Chapter 231 Dean, I want to write a textbook! (2-in-1) After the topic about Project 973 came to an end, the conversation between the three people also ended quickly. The two directors personally sent Chang Haonan out. Song Jian watched the latter disappearing around the corner and said with emotion: The waves behind the Yangtze River push the waves ahead...the little comrade Lao Du found is indeed extraordinary. Until now, the shocked look on his face still had not completely faded away. Ding Gaoheng turned his head and glanced at his old friend next to him: When I first met him, his behavior was similar to yours, and I will gradually get used to it. The latter reached out and brushed the white hair from his temples, and shook his head gently: Im old my ability to accept new things is poor, and I cant keep up with young people like them "There is no need to think this way. According to my observation, Xiao Chang''s situation should not represent the average level of young people today. We old guys still need to shine." To be honest, if young people are strong, the country will be strong. I hope there are more young people like this The two sat back on the sofa in the conference room while chatting, and they didn''t seem to have any intention of leaving. ?After a short while, Song Jian seemed to suddenly remember something and asked suddenly: By the way, Comrade Xiao Chang should graduate in June this year, right? "graduate?" Ding Gaoheng couldn''t react to the sudden topic. He nodded after about two seconds: "Yes, I graduated with a bachelor''s degree in June this year. I heard that Lao Du has been approved and will skip the master''s degree and study directly for a doctoral degree at his own school. In addition, President Shen Shiyuan of Beijing-Hangzhou has made a statement that he will do so within the scope of his authority. , try to shorten Chang Haonans PhD study time. After hearing the answer, Song Jian raised his head and stared at a corner of the ceiling and thought for a moment: How long does it take to complete a PhD today? If special arrangements are made, the degree can actually be awarded immediately after admission. Ding Gaohengs answer this time was almost without thinking, and he had obviously already considered this issue: "However, Lao Du and Xiao Chang themselves felt that this was too much of a movement. After all, although Beijing Hang University is a school under the supervision of our Science and Technology Commission, the awarding of degrees, especially the awarding of doctorate degrees under special circumstances, must still go through the Ministry of Education. Yes, these people...are not very reliable, and it is normal for them to have such concerns." "So the current plan that Lao Du and I have settled on is to give Xiao Chang a treatment equivalent to that of a professor while he is studying for a Ph.D., but it will still be calculated according to the shortest time for a doctoral degree in a public full-time university under normal circumstances, and the award will be awarded after two years. Bachelor of Science." Such an arrangement made Song Jian nod repeatedly: "Well...you should have thought more carefully. This is indeed safer." "Why do you ask this suddenly? If you have thoughts about Xiao Chang, I''m afraid Lao Du and Jinghang University won''t let him go so easily." Ding Gaoheng asked with a somewhat curious tone. Sophisticated Song Jian saw through the other party''s true thoughts at a glance: Heh, Im afraid you, the old boy, also have ideas about him, and Im afraid Ill beat him to it Then the conversation changed again: However, I do have the idea, but Im not bold enough to recruit Chang Haonan directly to the Science and Technology Committee. "oh?" Ding Gaoheng raised his eyebrows when he heard the topic of interest: "Are you ready to give Xiao Chang a heavy burden?" Song Qing waved his hand: "We two old fritters shouldn''t pretend to be ignorant here. Who doesn''t know that at our level, when we bear the burden, we are also building a ladder. I think you are just jealous that I have the 973 in my hand that has been decided by the top. plan" After a verbal retort, he then said seriously: The reason why I just asked you about Xiao Changs graduation date was because I wanted him to be a member of the first expert advisory group of the 973 Project. One sentence almost made Ding Gaoheng, who was drinking water tactically, almost choke. "Don''t worry, after listening to what you just said, I also realized that it was a bit too hasty." Looking at his somewhat embarrassed old friend, Song Qing smiled and consoled him: The list of members of the expert advisory group needs to be made public. The sudden appearance of a person without a professional title among a group of professors and researchers is really eye-catching. Ding Gaoheng finally recovered at this time: Ahemthen I really want to thank you on behalf of all the members of the Science and Technology Commission ?But before he could breathe a sigh of relief, Song Qing continued: "So I decided to set up an expert advisory group in each field to track, understand and guide project implementation in addition to the expert advisory group responsible for development strategy research and consultation on major issues. The size is about 4-5 in each field. Then invite Comrade Chang Haonan in, so that he can have a serious identity without revealing his personal identity. " ?This operation directly shocked Ding Gaoheng next to him. The Science and Technology Committee specially made dumplings for a dish of vinegar In order to give Chang Haonan a legitimate reason to participate in the 973 plan, a whole series of positions were directly created! On the other hand, the Science and Technology Committee, although it has given many material rewards to others in the past period, there is really no opportunity to formally arrange a position. ? ?The general consultant of the Seiko Project is considered a non-staff member. Moreover, even if Chang Haonan is turned into a full-time employee after graduating in a few months, it is obviously impossible to compare with the 973 project that has received support from above. ?This made Ding Gaoheng feel a sense of crisis instantly. He originally wanted to say something more, but at this time, the door of the conference room was suddenly pushed open from the outside. Several plainclothes staff members with ordinary clothes but extraordinary temperament walked in. There was an older man following behind them. They both stood up at the same time: ?On the other side, Chang Haonan, who returned to his residence, still didnt know that he had been clearly arranged. He is currently taking stock of his gains during this period after the end of the year. Because the negotiation with Airbus created so much noise, he directly received up to 100 scientific research points, 1,000 engineering experience points, and up to 3,000 management ability points after signing the agreement of intent between the two parties. The overall status of the system has also become: Research Points: 600 Theoretical level: LV2 (3500/10000) Engineering experience: LV2 (2000/10000) Management ability: LV2 (3000/10000) Comprehensive ability: LV2 Projects in progress: 0 Projects that can be carried out: 2 Such panel data gives Chang Haonan a lot of confidence. ?Especially if you have accumulated as many as 600 scientific research points, it is even enough to allow the system to skip steps and directly give the results of part of the project in critical moments. So after resting for a few days in Haojing, he began to rethink what he had promised Tang Lintian before, which was to write the last two units of the book "Application of Finite Element Thought in Aircraft Structural Design". ? It turns out that the system does not regard writing a book as a project. In other words, the plug-in has failed. ?But that doesnt matter. Chang Haonan also has his own past experience, as well as the theoretical knowledge he has learned after his rebirth from various sources including but not limited to systems, books and journals. He can try to make a systematic summary of the application of the finite element method. ?According to his original idea, there were only two chapters anyway. One chapter could be devoted to computational fluid dynamics and the other chapter to computational structural mechanics. First introduce some basic concepts, then write down a few calculation examples, and finally leave some homework after class. But the more this work progressed, the more he found that what he wrote was still not basic enough. The textbook is originally intended for beginners, and they were beginners in the 1990s. Many people only start learning to use computers at the undergraduate level. There are also many undergraduate training programs for engineering majors that do not include the content of partial differential equations. The receptivity of these groups must be taken into consideration. If three new proper nouns need to appear in order to explain a proper noun, it at least indicates that there is a problem with the order and logic of the content arrangement. As a result, more and more content was written in the original two chapters... Within a few days, the content space reserved by Chang Haonan exceeded one hundred pages. However, he has only just written about inf-sup conditions for the analysis of incompressible media and structural problems. This is the result after deleting a lot of content and exercises. ?So after much thought, Chang Haonan gritted his teeth and stamped his feet, and decided to give up doing the dojo operations in the snail shell and directly let himself go. Start with vectors, matrices and tensors! This is followed by an introduction to basic concepts of engineering analysis and mathematical modeling of engineering systems. Then there are methods for solving mathematical models of discrete systems and continuous systems. How the finite element method is constructed Construction and calculation of isoparametric finite element matrix Nonlinear finite element analysis based on solid mechanics and structural mechanics Methods for solving characteristic problems ?After Chang Haonan spent a few days outlining the outline, he finally realized how big a hole he had dug for himself. Two chapters? Laughing to death, both books may not be finished. Finally, he called Tang Lintian directly. Luckily, the other party happened to be in the office and the call was connected almost instantly. Hello, Dean Tang, I am Chang Haonan. Chang Haonan didnt talk nonsense and got straight to the point: Regarding the preparation of new textbooks on finite element analysis, if we follow the current thinking, it is really difficult..." Tang Lintian on the other end of the phone couldn''t sit still: "Xiao Chang, calm down first. If you have any difficulties, the college will try its best to help you with customer service..." ?What he is most worried about is that Chang Haonan gives up his career, and the value of the entire course may be greatly reduced. ?Tang Lintians ambition is to promote this course, or at least this textbook, nationwide. As a result, the latters next sentence is even more heavyweight: "Dean Tang, the space of two units is really not enough. I hope you can approve it and let me write a textbook directly!" ?Chang Haonan looked at the outline he had listed in his notebook. The first-level and second-level catalogs that he had thought of so far were listed for 7 pages. ?Even if you want to write a book, I''m afraid it has to be divided into two volumes for normal use, otherwise I''m afraid it will be printed as a brick. So he then added: Wellone volume may not be enough, so it needs to be divided into two volumes. There was silence on the other side of the phone for a moment. Dean Tang? ?Chang Haonan called out again tentatively. Although Tang Lintian has no control over the matter of writing a book, if he wants to use the written book as a teaching material, he will naturally need the cooperation of the other dean, and may even need to adjust the undergraduate training program to achieve this goal. Seamless connection in teaching. Otherwise, wouldnt it be just self-entertainment? "ah?" Tang Lintian finally reacted: Write a bookor two? He had no objections to Chang Haonan''s ability to improve his strength on his own. As for the orderliness he showed when he gave lectures to most of the college last time, there was no need to worry about the quality of the teaching materials he wrote. The only problem is schedule. ?Chang Haonan is indeed very strong, even stronger than most professors in the college. Tang Lintian knows this very well. But people who have never actually written a book can easily underestimate the difficulty of this matter. ?Especially for someone with a bright mind like Chang Haonan, he may have already typed up the draft when creating a new folder. ?As a result, when I actually started writing, I discovered that writing a book is not just as simple as piling everything in my mind onto paper. Then it just fell apart. ?So Tang Lintian asked in a more tactful tone: "But it''s almost March now. Even if we arrange for your first-year graduate students to take this course in the second semester, there will only be one year left and two volumes of textbooks... Xiao Chang, you can really finish it. "?" Hearing this question, Chang Haonan smiled: Dean Tang, I made this call just because I knew I couldnt finish writing. I am writing textbooks for our own college. Arent you prepared to give me a few people to help? This is also his second purpose for contacting Tang Lintian. If we follow the outline decided in the past few days, the total length of the two volumes will be at least 700-800 pages, which will also involve a large number of charts and formulas that are difficult to input and typeset. If Chang Haonan were to type it by hand, Im afraid I may not be able to finish it after I graduate with a PhD. It is natural to find some foreign aid. He has indeed never done anything like writing a book before. But I have never eaten pork, and I have always seen pigs running away. Before his rebirth, Chang Haonan knew that there were many books, especially textbooks, where the chief editor actually did not write or only wrote a very small part of the specific text, and was only responsible for designing the overall structure and checking the content. ??Of course there are also people who are completely hands-off shopkeepers, but that falls into the category of academic ethics issues. ?Given the current situation, he himself must still be actually responsible for some theoretical content, but other less valuable tabulation, drawing, and character input functions can be left to others. ?Chang Haonan''s time is still relatively valuable, and it is difficult to spare a large amount of time to do this kind of thing. How many people are there... ?Tang Lintian hesitated for a moment: Writing textbooks requires some experts after all, otherwise you have to teach the content first You cant be too old, otherwise typing on a computer will not be as fast as handwriting After some consideration: Well, how about I ask Teacher Liu Hongbo and his research team to help you with this work? Professor Liu Chang Haonan was stunned when he heard the name. In less than a year, Liu Hongbo has completed his transformation from his teacher, to his senior brother, and will soon become his subordinate. ?.jpg But it is indeed a good choice. ?As long as the other party has no objections, Chang Haonan will naturally welcome: Okay, thats it. (End of this chapter) Chapter 232 A celebration party for the three gates! (2-in-1) Chapter 232 The celebration party of the three gates! (2-in-1) When Liu Hongbo received the task of "helping Chang Haonan complete the compilation of a finite element method course textbook" about a week later, he agreed with almost no psychological fluctuations. Having gotten used to it. Besides, now its just a matter of helping his fellow juniors. They have the same seniority, but the age gap is a little bigger, so its not embarrassing. ??He was just very lucky that Du Yishan came out halfway and snatched Chang Haonan away from him ??If it hadn''t been for this kind of thing, now he would be a swindler for his own students. ?Oh, he cant even be considered his student, because Chang Haonan is still technically studying for an undergraduate degree. In short, if that happens, he may not be able to continue to work in the education world. As for what made Chang Haonan write a book, put his name on it and reach the top of his life... Liu Hongbo never thought about it in that direction. It is not just a matter of academic ethics. But before anyone does this kind of thing, he must weigh the other person''s weight Look at the circles Chang Haonan is currently in contact with. It can be said that there are scholars who talk and laugh, but there are no idle people in the contacts. ?Even if this kind of person becomes his graduate student, it is absolutely impossible to be manipulated. Didnt you see that even Du Yishan seldom asks about Chang Haonans projects now... At any rate, the former has paved a lot of roads with his own influence. ??If it had been him, Liu Hongbo, he would have written the words "moral and unqualified" on his forehead. ??It will only embarrass both teachers and students. So its better to be brothers. He still has this self-awareness. Liu Hongbo, who returned to the office, spread the two-page fax he got back from Tang Lintian on the table and breathed a sigh of relief. What is written on the paper is the outline and basic ideas determined by Chang Haonan for that textbook. Start with vectors? He read it over and over again, but still felt that the content was a bit too lengthy. At least the contents of the first three chapters should have been covered in the basic courses of the first and second year undergraduates, so there seems to be no need to repeat them here. After thinking for a moment, Liu Hongbo picked up the two pieces of paper on the table, walked out of the office quickly, and came to his laboratory. It was already the fifteenth day of the first lunar month. Although there were still a few days until the school officially registered and started, many students had already returned to school early. Teacher Liu. ?Three graduate students who were busy in the laboratory saw their supervisor who suddenly walked in. They said hello casually and continued their work. As a relatively young professor, Liu Hongbo himself often appears in the laboratory, so students are not surprised. But the purpose of his coming today is quite special. I have a question to test you. Liu Hongbo came to the blackboard at the other end of the laboratory, picked up a piece of chalk from the side, and wrote a two-dimensional matrix =[1, -1, -1, 1] on the blackboard. When he turned around, he saw three confused expressions. Teacher Liu, this is to... ?The three students who came back early to start experiments are all senior masters or doctoral students, and they are already a little unfamiliar with the exam format. Whats more, Liu Hongbo has never played this trick in the past. Suppose in the plane stress analysis, the stress measured at a point in the non-primed coordinate system is the on the blackboard. Now you are asked to establish its components in the primed coordinate system. What would you do? ?The three students looked at each other for a few seconds, but this kind of question obviously didn''t stump them, and one of them quickly wrote the answer on the blackboard. ?\''=PP(T) Where P=[cos, sin, -sin, cos]. "very good." Liu Hongbo nodded with satisfaction: Then lets change to a slightly more complicated problem. He erased the things on the blackboard and drew a beam fixed to the wall. This is a beam with bending stiffness EI, the load per unit length is P, and the spring stiffness at the other end of the beam is k. Now we need to use four finite difference nodes to establish the control equation of the beam response. This time, no one could give the results quickly. In fact, from the looks in the eyes of the three students, Liu Hongbo knew that they should be very confused about this issue. After a while, the boy who just wrote the answer said with confusion: Teacher Liu, is there any connection between these two questions? At this time, Liu Hongbo suddenly realized that he himself could not give a systematic answer in words. Simply put, the first question can be seen as the theoretical basis for solving the second question. This explanation is obviously unsatisfactory. Teacher, I remember you said in class before that the theoretical basis for airplanes to fly is only Newtons third law proposed in 1687, but it was not until 1903 that humans built the first airplane The other person''s tone was obviously a little dissatisfied. "you''re right" Liu Hongbo stared at the blackboard for a few seconds, then patted the student next to him on the shoulder: Its okay, you can continue your work. After saying that, he strode out of the laboratory under the eyes of three incomprehensible eyes. In fact, what Liu Hongbo raised was just the simplest linear analysis problem in rigid body mechanics. If these students are given enough time, they should not be unable to solve it. But the reactions of the three of them just now show that for an inexperienced person, the distance from basic mathematical knowledge to practical engineering applications is not as close as he had imagined before. In other words, Chang Haonans design of the knowledge structure of the textbook is right. The first three chapters are not useless parts. The density of knowledge in university classrooms is often very staggering, and there is not much time for students to slowly think and react. If the textbooks are written in a simpler way, it will easily lead to students getting stuck somewhere and never following the course again. The situation of not thinking in class. So there is a saying - In math class, I bent down to pick up a pen. When I raised my head again, it was as if I was listening to heavenly scriptures. ?Perhaps its because compared to other people who compile textbooks, Chang Haonan himself is still a student, so he grasps these pain points more accurately. Liu Hongbo shook his head and sighed as he walked: MD, thats outrageous. He was originally planning to continue to subcontract the basic content to his graduate students to write. But now I have changed my mind. Obviously, Chang Haonan, a junior fellow student, can be embraced not only in academia, but even in the education world. So he decided to write the book in person. Just think of it as a way to experience Professor Changs educational thoughts in advance Liu Hongbo told himself this as he opened the office door. In fact, Chang Haonan originally planned to take advantage of his time in Haojing to write out part of the framework before collaborating with Liu Hongbo. This will make it easier for the other party to understand your overall ideas in this book, and save a lot of work on later revisions. But God is not as good as man, so he just wrote the beginning part, and one night he received a call from Ding Gaoheng. Director Ding? Xiao Chang, pack your personal belongings immediately and come back to the capital with me tomorrow morning. Back to the capital? ?The other persons words made Chang Haonan a little confused: But arent the negotiations here not over yet? "Now the most important things have been basically decided, and the things in the capital are much more important. You must be present." Ding Gaoheng did not clearly state the purpose of his trip to Beijing on the phone, but it sounded obviously very urgent. So Chang Haonan subconsciously thought that there was another technical problem that needed him: Okay, let me prepare. Also, can you tell me what kind of work it will be? Its also good for me to prepare in advance. Hearing this answer, Ding Gaoheng let out a hearty laugh: Why, can the call I made just be to assign you a task? Chang Haonan rolled his eyes and said, isn''t it... ?Of course he wouldnt say it out loud yet. Isnt this a conditioned reflex? When I was celebrating the New Year at home at the beginning of last month, I answered a phone call around this time after dinner, and I was called to Haojing. This time... its an unexpected situation, an unexpected situation... Ding Gaoheng was somewhat embarrassed when talking about this matter. After all, it was he who recommended Chang Haonan as a technical consultant to the negotiating delegation. ?At the beginning, we only wanted to let the latter play some check-in role, but no one expected that it would actually open up a whole new world for China''s civil aviation industry. At least all regional airliners built in the future will have both Chinese and European certifications. As long as their technical level is excellent, they will not have to worry about lack of sales. Brand effect is like this. Even if it is exactly the same thing, it will be more easily recognized if it has a **** standard brand. As for the aviation industry, Europe and the United States are the first countries to develop, so naturally they have the most recognition. From this perspective, Chang Haonan can be said to be the hero of the entire Chinese aviation industry this time. Dont worry, its a good thing to call you this time. Youll know after you come back to the capital with me tomorrow. Ding Gaoheng said comfortingly to the other end of the phone while thinking about what benefits he should offer to compete with the National Science and Technology Commission for people. Of course Chang Haonan doesnt really have any opinions: In that case, Ill wait for the good things Director Ding will bring tomorrow! The person responsible for taking Ding Gaoheng and Chang Haonan back from Haojing was a Boeing 737-300 of the 34th Air Division. To the latters surprise, their plane landed directly at the airport in the western suburbs of Beijing. Since the opening of Terminal 0 of Beijing Capital International Airport in 1958, it no longer undertakes any civil aviation business and has become a specialized military airport. Chang Haonan had never done anything earth-shattering in his previous life. Although he had done a lot of work after his rebirth, the time was still too short after all. In fact, he had not seen any big occasions, so the call he received last night was obviously inappropriate. After the ordinary phone call, he actually thought about many possibilities. ?However, judging from the scene of picking up the plane in front of him, the battle this time seemed to be much bigger than he expected. Not to mention the BJ2020 and other common small cars in the distance at the front and rear of the convoy, parked in the middle were several exquisitely crafted black luxury cars with square heads and square heads. Even if Chang Haonan doesnt know much about cars, he still knows them. Nissan Duke King V6. It can be regarded as Nissans last generation luxury car. ?Of course, there are even Mercedes-Benz S600s in the army these days, but they will not appear here, but in the hands of some military companies. ? And according to the course of history, there is not much time left before "no business is allowed", and many military companies have already begun the process of liquidation or divestiture. In short, in this year, the specifications of a fleet of several Dukes and Kings are already quite good. After getting off the plane, Chang Haonan followed Ding Gaoheng and got into a vehicle in the motorcade led by several staff members wearing casual suits. Director Ding, we are going... ?After getting in the car, Chang Haonan looked at the luxurious accessories inside the car with some restraint. ?This kind of treatment is the first time in his two lives combined, so you cant blame him for not letting go. Having already arrived here, Ding Gaoheng naturally had nothing to hide. After straightening his clothes, he replied simply: Jingshan Front Street. ?Chang Haonan was stunned. This place name is quite unfamiliar to him who has returned from more than 20 years ago. Ding Gaoheng next to him also saw that he failed to understand, so he added another explanation: It is the three gates. ?Now Chang Haonan knew It is now early March 1997. The Bayi Building at No. 7 Fuxing Road, which he was familiar with in his previous life, has just broken ground at this time, so Junwei''s office is still at the third door. ?Thinking of this, Chang Haonan felt his heart beat a few times unsatisfactorily. ??The highest-level meeting he has attended before was the internal commendation meeting of the Aerodynamic Research and Development Center. Now he has directly participated in a big event. To say that he is not excited at all would be a lie. Just kidding, how many people have never even entered the county in their entire lives. ?Whats more, we were picked up by a motorcade this time. So theres a meeting? Ding Gaoheng nodded: "Yes, a small-scale commendation and celebration meeting. Of course, the semi-public statement within the army is to celebrate the official installation of the J-8C aircraft. You will know the more specific situation when you arrive." ?Chang Haonan did not continue to speak, but turned to look at the roadside buildings passing quickly outside the car window to stabilize his somewhat fluctuating emotions. ? ?The commissioning of just one type of aircraft will not lead to a celebration party at the three-seat gate, even if the J-10 is built. Moreover, it has only been three months since the small-scale trial installation of batch 00. According to the training frequency of the aviation force in the 1990s, the troops may not even be able to fully understand the various functions of the aircraft, and it should not be officially put into service so soon. . But since this statement is semi-public, it should not be a complete fabrication. It must also be related to the J-8C model. In other words, in the three months since he left Shengjing, something terrible might have happened! (End of this chapter) Chapter 233 Captured the electronic warfare pod? Chapter 233: Captured the electronic warfare pod? When Chang Haonan and Ding Gaoheng arrived at the conference hall on the first floor of Sanzuomen together, they were more sure of what they had just guessed on the way. Because in just a glance, he had already seen many familiar faces. ??Yang Fenghao, Yan Zhongcheng, Zhong Shihong and other old colleagues who were deeply involved in the August 3rd Project need not be mentioned. There are also other comrades from the 112th Factory, 601st Institute, and even the 611th Institute, as well as many figures wearing military uniforms. ??There are both navy and air force. ? After getting a little closer, it was not difficult to find that a total of 6 pilots who had participated in the 00 batch pick-up before were all listed. ?In addition, a group of test pilots such as Fu Guoxiang who have been deeply involved in prototype flight tests are definitely indispensable. Simply put, representatives from all parties related to the August 3rd Project were sent here. A huge banner with red background and white text was hung above the rostrum at the entrance. The printed text was to celebrate the official delivery of the J-8C aircraft to the army. This was a semi-public statement, probably because this kind of scene still required photos after all. Send out press releases. ?Perhaps because todays theme is celebration, the atmosphere in the entire venue was relatively relaxed. Even when Ding Gaoheng walked in, everyone did not act too restrained. Of course you still have to have the basic etiquette that you should have. Director Ding. ?Yang Fenghata and others who were sitting not far from the door stood up one after another. Then they saw Chang Haonan, who was following Ding Gaoheng and had just changed into a suit in the next room. Permanent worker? How do you... ??Zhong Shihong, the youngest among them, still lacked concentration and subconsciously blurted out in shock. Chang Haonan''s appearance here is of course something that everyone can expect, but the appearance of Ding Gaoheng did surprise many people. You must know that these three gates are important military areas. Even if you have a pass, it is absolutely impossible to enter and exit casually. Moreover, everyone here is picked up by a special car. There are detailed plans for the order and time of arrival. Basically, there will be no two differences. People coming over encountered this situation by chance at the door. Even if there is, there will be a delay when entering the door. So there is only one possibility, that is, in the original arrangement, Chang Haonan accompanied Ding Gaoheng. The director of the Commission of Science, Technology and Industry for National Defense can be said to be the head of the entire national defense science and technology industry. Almost all the people without military status in the venue today are Ding Gaohengs subordinates. Chang Haonan seemed to have a close relationship with the latter. This is serious. People who have been deeply involved in the August 3rd Project, especially Yan Zhongcheng and others who went to 624 to do the turbojet 14 engine test, more or less know that Chang Haonan used an aviation industry standard to help the Science and Technology Commission win the entire civil It is a matter of jurisdiction over the aviation industry, so it is expected that he has a close relationship with the Science and Technology Commission system. But it is one thing to have a close relationship with the Science and Technology and Industry Committee, and another thing to have a close relationship with the director of the Science and Technology and Industry Committee. ?Furthermore, Ding Gaoheng has another level of identity Although Nie Shuai himself passed away four years ago, his influence in the military industry has not faded. ??Yang Fenghao, Yan Zhongcheng and others are relatively calm and do not show their emotions easily, but when they look at Chang Haonan, they also look at Chang Haonan with a bit of different attention than in the past... Why, it shouldnt be too surprising that Comrade Xiao Chang came to attend this celebration, right? ? Ding Gaoheng used a slightly joking rhetorical question to put Zhong Shihong''s little gaffe away. ??The latter''s mind was spinning fast enough, and he quickly added something: "Of course not. On our way to the capital, Mr. Yang also said that if Comrade Chang Haonan was not present at the celebration related to the August 3rd Project, we couldn''t even use chopsticks!" He praised several people without leaving a trace in one sentence, and also changed the topic to Chang Haonan''s contribution to the August 3rd Project. Yang Fenghata next to him also nodded. After all, he did say this: Yes, without Comrade Xiao Changs outstanding contributions in wing design and aerodynamic improvements, the 83rd Project would have been delayed for another year or two. Yan Zhongcheng, whose facial muscles are relatively stiff due to an injury when he was young, can only maintain a serious face most of the time, also showed an extremely rare smile, and joined the lineup of praise for Chang Haonan: To be honest, I, the chief designer, have gone back and looked at Xiao Changs improvements to the high-pressure compressor part of the turbojet 14 over and over again. I always see new things and learn new things every time. ?Although what they said was true, Chang Haonan had to be humble no matter what when facing this kind of scene; "Mr. Yan''s words are enough. The turbojet 14 can improve the performance of the current quasi-third-generation engine. It cannot be achieved by optimizing the high-pressure compressor alone. There is indeed potential in the combustion chamber and turbine. In this regard, at most I am standing on the shoulders of giants. The correct way to be humble is not to say that your own work is not important, but to say that the work of others is also important. This is especially true when a big leader is around. Okay, this is a good celebration party, if you continue like this, it will turn into a technical seminar again. Ding Gaoheng smiled and waved his hand, ended the routine opening of the compliment session with some words, then said that he still had something to do and turned to leave. ?In order to prevent the conversation from getting cold feet, and more importantly, to satisfy his curiosity along the way, Chang Haonan took this opportunity to ask questions about the true purpose of the celebration. "you do not know?" ?Yang Fenghata and the others on the opposite side looked at each other: Last month, oh, on New Years Eve to be precise, Deputy Division Commander Zheng Liangqun led a two-plane formation to successfully intercept and shoot down a MiG-25 reconnaissance aircraft on the west side of the Ladakh Mountains. As it happens, Deputy Commander Zheng is here today. I can ask him to tell you the details of the battle after the celebration is over. Chang Haonans eyes widened when he heard the news for the first time: Is there such a thing? No wonder they formed such a huge formation. ?In the original timeline, the MiG-25s of the 102nd Squadron stationed at Parvatipur Air Force Base have always been China''s major concern in the southwest plateau area. ?The other party relied on the height and speed of its aircraft to repeatedly invade and even cross the airspace to conduct reconnaissance or simple provocation missions. Until those MiG-25s were retired due to disrepair, they did not encounter any effective interception means. But now, with the technical support of Chang Haonan, the situation has obviously changed. ??The triple-sonic squadron, which still thought it could rely on its high altitude and high speed to be invincible, finally encountered an opponent that could defeat them. ??And the ace unit of the 1st Air Division is really good-looking, using two aircraft that the pilots are not completely familiar with to complete this shootdown that can be said to be proud of. For Chang Haonan, although as a scientific researcher he cannot go into battle to kill the enemy personally, it is exciting enough that the aircraft he developed can participate in it. What you want is a sense of participation. Not only that, you may not believe it even if you say it. ??Yang Fenghata, who has gray hair, is also very happy when he talks about this topic. For him, the J-8C''s achievements are like his own children becoming famous, so he is naturally very happy: Because our pilot chose the right time to intercept, the speed and altitude of the MiG-25 had already dropped when it was shot down, so the pilot was still alive and the wreckage of the aircraft was relatively intact. Plane wreckage Chang Haonan touched his chin: The wreckage of the MiG-25 is nothing, but if it can be recovered, it would be a good commemoration. After all, it is the first victory of our aviation unit in nearly 30 years. Unexpectedly, Yang Fenghao shook his head and explained: Of course the MiG-25 itself is not important, but there is a very powerful electronic warfare and radar reconnaissance pod hung under that aircraft, an American product! Chang Haonan, who was a little unfazed just now, immediately became energetic: So that pod is now ?Yang Fenghata showed a pure and happy smile that was somewhat inconsistent with his age: In our hands. (End of this chapter) Chapter 234 jamming pod, reverse engineering Chapter 234 Jamming pod, reverse engineering Our pilots did a great job... Chang Haonan, who was in a good mood, immediately made a fist-to-palm fistfight, which made a loud bang that attracted a lot of attention in the venue. ?For a moment, he even wanted to use the word "awesome" to comment, but he still swallowed the words forcefully. After all, this is Sanzuomen, and some of the less elegant oral habits have to be restrained. ?However, the sound just now attracted the attention of several pilots on the other side of the venue. Those who are capable of flying airplanes naturally have good eyesight, so even from a distance of tens of meters, someone quickly recognized Chang Haonan. So a few minutes later, several more people gathered around the latter and joined the discussion. Chang Haonan had an encounter with Zheng Liangqun when batch 00 was delivered for trial a few months ago, but at that time he chatted more with two comrades from the 25th Regiment of the 9th HNA Division. Congratulations to Deputy Commander Zheng for achieving the first over-the-horizon shootdown of the Chinese Air Force. It also gives credibility to the products of our aviation industry! The shooting down of Zheng Liangqun broke many records of the Chinese Air Force. The most direct one was the first actual combat result since 1967, but "the first in thirty years" is definitely not as good as the real "first". . "Hey, what did Chang Gong say? It''s obviously your equipment that gives us pilots the opportunity to display our abilities. If there were no new aircraft that were just installed, then even if we caught the time window for the MiG-25 to attack, we would only be able to It may be beyond our reach. You can see that the pilot comrade opposite is trying his best to suppress his smile, but obviously the effect is not very good. After all, even Yang Fenghata was as happy as a child when talking about the achievements of the J-8C, let alone Zheng Liangqun who personally shot down the MiG-25. Which fighter pilot wouldnt want to paint a real downed mark on the side of his plane? What''s more, as Chang Haonan just said, this is the first beyond visual range battle result. The Chinese army began to equip aircraft with theoretical beyond-visual-range combat capabilities in the mid-1980s. For nearly 10 years now, there are very few pilots who have even shot over-the-horizon aerial targets. And he, Zheng Liangqun, has already achieved a result. . Far ahead of its peers! It is definitely an achievement that can enter history. ??Maybe even give him a chance to spread his experience and training methods across the military From now on, all pilots in the navy and air force will be at least half of his apprentices. ?Just thinking about it is exciting. Now Zheng Liangqun can''t wait to say "How did you know I shot down a MiG-25?" when he sees someone. However, due to the special nature of fighting abroad, he cannot share this joy with most of the people around him. Even this honoring ceremony had to be done in other names, which made it quite uncomfortable to hold back every day. Whats going on with that pod? Have you started researching it? Can we use it as a reference to reverse engineer one? Chang Haonan, who has had similar feelings, knows the pain of holding back the feeling of accomplishment and not being able to express it, so he quickly threw out several questions like a barrage. Satisfying my curiosity is just a way of doing it, mainly to create an opportunity for Deputy Commander Zheng to express himself. Sure enough, when he finally faced a group of people who didnt need to cover up and had someone to set up a ladder for them, Zheng Liangqun, who usually didnt talk much, quickly started chatting: The MiG-25s of the 102 Squadron are only the most basic RBK and RUS types. They originally only had daytime photographic reconnaissance capabilities. Although they are difficult to deal with, the actual threat from Zhenli is not that great. "But the last few times they flew were obviously not normal optical reconnaissance routes. Later we shot down the plane and captured the pilot and found out after a first interrogation that they had somehow hooked up with the United States. The CIA had attached a MiG-25 A multifunctional pod that can perform active and passive radar reconnaissance at the same time, it can not only perform SAR scanning, but also automatically detect and collect radar signals. So powerful? ?Chang Haonan knew that he only needed to be a good supporter at this time. Zheng Liangqun nodded and continued: "That''s not all. When we were preparing to intercept this time, they also launched electromagnetic interference several times in a row. Whether it was a surface-to-air missile position or our interceptor aircraft, they would lose the target when they switched to tracking mode and prepared to launch missiles. The pod was also responsible for the trick. The captured pilot said it could create a false target for the radar. " Then how did you shoot him down in the end? Was it with a machine gun? Of course not, using machine guns at that altitude is too risky, and the effect is not good. Zheng Liangqun did not reveal that they had really considered this life-threatening plan at that time. After all, it was not used in the end. It seems hypocritical to say this. Chen Jialiang, who had been waiting eagerly beside him, finally got a chance to interject: Speaking of which, I later heard an engineer from the Electronic Technology Group say that in the end we were able to overcome electromagnetic interference because of your inspiration, Chang Gong. Because of me? ?Chang Haonan was a little surprised that the topic was suddenly brought to him. "Yes, an engineer named Guo from the 14th Institute told us that he was inspired by one of your papers and designed an anti-tow interference mode on the J-8C''s 1472 radar to reduce some of the radar refresh rate and detection. At the expense of distance, we could avoid the influence of deceptive interference, and then we fired two PL-11 rounds and knocked down the MiG-25. " ??Chen Jialiang gestured with his hands in mid-air, introducing the most exciting part of the entire battle to Chang Haonan and others. Later, together with the paratroopers of the Pakistan Air Force, we found the pilot and the wreckage of the plane near the shooting point. Zheng Liangqun, who had been robbed of the conversation for a long time, took advantage of every opportunity to answer the question: The most valuable pods have been secretly transported back to China and handed over to the military industry department for research. As for reverse imitation... it depends on them. Anyway, we really hope to have a similar equipment. ?After a lot of wonderful stories, Chang Haonan finally heard the information he wanted to know most This rather powerful jamming pod must have just begun to be studied. In other words, there is still room for him to play a role. So which unit is in charge of this matter now? ??If this thing is within the aviation industry, that would be the best, but if not, it may have to be contacted through Ding Gaoheng''s relationship. Of course its our Electronic Technology Group. ?At this moment, a young voice came from the side: ?Chang Haonan turned his head and saw a man wearing glasses, probably in his early thirties, and with hair that did not look like an engineer coming over. Guo Lin, from the 14th Institute of Electrical Engineering. After a brief self-introduction, the two shook hands. "I am very happy to see one of the founders of the volumetric Kalman filtering method here. The paper co-authored by Chang Gong and Researcher Xu gave us a lot of inspiration. Our radar can overcome interference and seize the target this time. I also want to thank you. Its nothing, academic research should be exchanged. At this time, Chang Haonan was obviously not concerned about this matter: "I wonder if I can..." Before he could tell his purpose, Guo Lin, who had already guessed what he wanted to say, replied directly: Of course you can participate. In fact, even if we dont find a chance to chat in person today, we were originally going to invite you two to join this project. After all, there should be no more authoritative person in the country in the field of control engineering theory. The two of us? ?Chang Haonan noticed that Guo Lin opposite him was looking behind him and subconsciously turned around. A woman about the same height as me was standing there with her arms folded. Researcher Xu? It was Xu Yang who had worked with Chang Haonan for a while when he was optimizing the wing design. Dr. Chang, long time no see. (End of this chapter) Chapter 235 Accidentally became an industry leader Chapter 235: Became an industry leader by accident Since that collaboration at the Institute of Computing Technology, although the two have exchanged letters and even co-published a top-level paper in the field of control, they have never met again. From what Guo Gong said, we should have another chance to cooperate? ?Chang Haonan lightly shook the hand that Xu Yang extended. Yes, Im looking forward to it. The latter raised his hand to straighten the messy hair around his ears, and nodded with a slight smile. In every sense, Xu Yang is undoubtedly a genius. In the past twenty years, she has never met a peer who can adapt to her in cooperation, and she often needs to interrupt. Only by waiting for the work at hand, or even assisting others, can progress be progressed normally. Even her supervisor when she was studying abroad at Berkeley often felt that she couldn''t keep up with her ideas after her second year of Ph.D. ?? Xu Yang doesn''t mind if he works harder and takes on a larger proportion of tasks, but it is very frustrating to have his thoughts frequently interrupted because others are lagging behind when he is concentrating on his work. So she gradually became accustomed to a simpler way of cooperation, that is, taking charge of the entire project herself, and then assigning small tasks to others that would not affect the integrity of her own work. This way of working actually requires subordinates rather than colleagues. Therefore, during the period after joining the Institute of Computing Technology, Xu Yang had almost no interaction with other researchers except for a few graduate students under his guidance. What deep cooperation. Until I met Chang Haonan. For the first time, she experienced what it was like to have someone who could keep up with or even be slightly ahead of her peers. In short, its cool. Very happy. When encountering a problem that is difficult to solve, there is actually another person who can communicate with me on the same frequency. So during this period, Xu Yang has really missed the days of working with Chang Haonan. And the latter will naturally not exclude cooperation with such a top-notch scholar in all aspects: Then I wish us a happy cooperation. With your help, I believe our research on the jamming pod will go very smoothly. ?Seeing the scene where the two people quickly reached a consensus, the happiest person was Guo Lin: How about I report to the superiors and submit a project application as soon as I return to Jinling this time and invite you two to join me? There was a hint of impatience in his tone, fearing that the two great gods would change their minds after they returned. "good." ?Chang Haonans answer was very brief. Okay, then Ill be waiting for your news. On the contrary, Xu Yang, who seems to be a little shy about strangers, gave more positive feedback. "But it''s a coincidence. The paper we wrote was probably seen by the Second Bureau of Mechanical and Electrical Engineering and you 14 at the same time as soon as it was sent out. Then it was applied to the Thunderbolt 11 missile and 1472 radar projects respectively, and finally they were used together. Installed on the J-8C. Chang Haonan looked at Guo Lin, who looked delighted, and casually found an excuse to continue the topic. However, this sentence surprised Xu Yang next to him: No, Dr. Chang, it was your suggestion to submit to IEEETransactionsonAutomaticControl. Why did you make it sound like you didnt know the status of this journal in the industry? ?The other partys reaction made Chang Haonan a little puzzled: Of course you know, you know, its a top journal in the industry, but there are always several top journals in the field of control. Will the research institutes of the Electronic Technology Group order it as soon as possible? In this era, there is no such thing as publishing a manuscript in advance on the Internet in advance. Especially the domestic Internet construction has just begun to cover large and medium-sized cities, and the network hardware construction of many academic institutions has not even caught up. If you want to gain access to foreign countries, First-hand academic information often requires purchasing paper publications by mail. Even if we do not take into account the high foreign publication prices and cross-border postage, this process still takes a long time, which often makes it difficult to quickly follow the most cutting-edge international research progress. Unless it is through human express delivery or fax, this method cannot be used on a large number of journals in a wide-spread manner. "Well" After hearing Chang Haonan''s answer, Xu Yang put his forehead with one hand helplessly: It seems like you really dont know how big a stir this paper has made in the industry... Chang Haonan was really confused now. In his impression, although an IEEETransactionsonAutomaticControl article can indeed give the author some status in the control field, it does not seem to be enough for Xu Yang to perform like this. Upon seeing this, Guo Lin quickly took over the topic appropriatelyXu Yang is, after all, the other author of the paper. If she were to speak, it would inevitably sound a bit self-proclaimed. At this time, an outsider needs to appear: Chang Gong, the paper you two published is the first time that it has been published in a top journal in the industry by Chinese authors affiliated with Chinese scientific research institutions. It must be of extraordinary significance to those who control us in China. This is something Chang Haonan never thought about at all. Is that so ? He ??has not done much research on the development history of domestic control disciplines, and he does not know what level the current Chinese researchers are generally at. As a result, it accidentally created a domestic first. Since this is the case, it is not surprising that the industry attaches great importance to this paper, so that they use some cost-effective methods to ensure that they see it as soon as possible. ??Guo Lin nodded, with a little envy and admiration in his eyes: Not only that, the cover theme of the magazine in which the paper was published was called Bringing the Kalman Filter Method Back to Life. Is it even on the cover? As a scientific research dog for two lifetimes, Chang Haonan is very aware of the difficulty of getting a paper cover. Of course only refers to top journals. ?The covers of some water magazines can be published for money. What''s more, in order to make money, they will put one cover, two covers, and three on the same publication to get more fish. This is not included. "Yes, occupying the cover of top journals is a rare thing in China. The two factors are superimposed. This paper has actually been highly discussed in China and the Chinese academic circles in the United States since it was accepted. So just now As soon as I saw the magazine, someone brought back a few copies. But I remember that there is an additional page fee for being on the cover, and we also have to do the cover style design ourselves? Chang Haonan still feels a little unreal. The IEEETransactionsonAutomaticControl, which he tried his best not to publish in his previous life, is now on the cover without any notice. Although the content of the paper did draw on the wisdom of some later generations, the core content still came from him. Of course I did these. Xu Yang lightly shrugged his shoulders and replied: "Originally I wanted to call the 601 office to find you, but they said you were on a business trip. I needed to go through the formal process and contact my work unit to inform you of the specific destination. They were pressing me very hard at the time, and I definitely didn''t have time to go through this process. So I dealt with it alone. You wouldnt blame me for taking matters into my own hands, would you? Of course not. Chang Haonan quickly shook his head: "Or rather I should thank you..." "Thank you... No need. Anyway, all the expenses have been reimbursed. I just ran a few errands." "So... Chang Gong, you didn''t care about the article at all after it was submitted, right?" ?Guo Lin asked incredulously. ??He felt that if he wrote such an awesome article, he would definitely want to pay attention to the reaction of the editorial department every day. Uhhow to say ?This question made Chang Haonan think about it for a moment: Actually, the initial research on this direction was just to solve the problem of coupling between the J-8C leading edge slats and flaps. The paper was also proposed by researcher Xu for publication. I just added some content to it by the way..." Ah this? ??Guo Lin felt that the corners of his mouth were twitching uncontrollably. His worldview seemed to be crumbling. Thanks to the book friend [Old Bookworm Potato Knife] for the 5,000 starting coin reward~ (End of this chapter) Chapter 236 Nine-star general and father of aircraft carrier Chapter 236 The Nine-Star Warlord and the Father of the Aircraft Carrier ?Chang Haonan''s answer just now and Guo Lin''s subsequent reaction triggered good-natured laughter from everyone, including Xu Yang. ?However, the discussion quickly returned to the topic related to the interference pod. Guo Gong, where is your research on that pod now? ?Chang Haonan asked a question that he and Xu Yang were both concerned about. It has just begun, and there is no progress yet. Even the restoration is only half done. ??Guo Lin also put on a relatively serious expression when he was talking about business: "Although the MiG-25 that was shot down had an average height and speed and was more than completely smashed, it happened to crash on a ridge in the Ladakh Mountains, causing the wreckage of the aircraft, and of course the pod, to be distributed separately. In the three valleys, the situation on the Pakistani side was more complicated, and we did not dare to mobilize too many unreliable troops to search the mountains, so it took a long time to find most of the key parts. " "At present, we can only analyze the situation reported by the combatants during the operation. Let''s not mention the function of radar reconnaissance. In the electronic interference part, it is certain that there is at least one relatively powerful velocity gate drag interference, and more parts need to be Waiting for the disassembly results to come out. I dont think its the only one with this function. Xu Yang lowered his head and thought for a moment, and then replied: "Although I don''t know much about military radars, current pulse Doppler radars should all have the ability to measure distance and speed at the same time. As long as the relationship between distance and speed integral is used, it can fight against separate speed drag interference. As for the two J-8Cs being bothered for so long. Chang Haonan, who has more than 20 years of experience than everyone present, knows more about this: "Tow interference is generally combined with false Doppler frequency shift interference and Doppler frequency shift flicker interference, which are frequency-shift interference functions that are specifically designed for PD radar coherent accumulation technology, so that the radar speed tracking wave gate is between the two interference frequencies. The real target speed and displacement cannot be stably captured, and the interference effect cannot be overcome by comparing the integrated data alone. " But if so ?Chang Haonans explanation did not completely eliminate Xu Yangs doubts: "I''m afraid that the pod must be very large, and the power consumption must be quite alarming. Whether it is using a traveling wave tube phase-shifting amplifier or a CNC phase shifter to achieve carrier frequency shifting, it is inevitable that the harmonic level will If it is too high, the effective interference power will be reduced. In addition, miniaturization of these two things is currently relatively difficult. ?Guo Lin shook his head: It is indeed not small, but most of the space is used to accommodate a synthetic aperture radar antenna, and the space used for electronic jamming equipment is not large. At this time, Chang Haonan noticed that there were many people outside the conference room. It was obvious that the big boss who entered the room at the end was about to come forward, so he quickly made a brief summary: "Anyway, what Researcher Xu just said makes sense, so our core goal in studying this trophy should be to understand how it can effectively interfere with PD radar, and try to imitate and improve it. It is best to equip it. On our own aircraft, more than half of the 36kW power supply of the two J-8C engines is idle. In fact, Chang Haonan already had some guesses about this pod after hearing Guo Lin''s description. The incident of shooting down the MiG-25 was one of the butterfly effects brought about by his rebirth. There was no previous experience for reference, but the effect of this jamming pod sounded very close to that of the one often hung on the wingtips of the Su-27. Those two L005S active electronic countermeasures systems. L005S is quite compact and consumes little power, but it has always had good results even until the beginning of the 21st century. The key is that it does not use traditional traveling wave tube amplifiers or numerically controlled phase shifters, but uses digital The radio frequency memory (DRFM) implements direct digital synthesis (DDS) to complete digital frequency shifting. Yes, Big Brother was already able to produce components such as DRFM and FPGA in the mid-1980s. It was basically only behind the United States and did not rely on black magic to achieve electronic warfare capabilities. Whats more abstract is that when the Su-27s flight control was still using analog fly-by-wire, its supporting jammer had already been fully digitalized. Of course, it has been another 10 years since the L005S was finalized, and the United States is still the super devil in the field of semiconductors. There must be other black technologies in that pod, but the basic principles may not change much. Because in the previous life until Chang Haonan was reborn, the principle of deceiving and interfering with radar was still in this set of things. Its nothing more than the improvement in the level of algorithms and components. ??It''s just that Chang Haonan can only think about these things in his mind at the moment. ??At this time in the timeline, he has never even seen the L005S pod on the Su-27 (the two aircraft at the air show did not have it), so it would be too fake to directly pick out other peoples principles... ?At this moment, a piece of exciting music suddenly played in the conference room. "Hours of Glory". It is often used as background music for various celebrations or ceremonies. ?Sure enough, a staff member soon reminded the attendees to return to their seats as the ceremony was about to begin. ??The people who still had unfinished thoughts had to temporarily separate. ?However, according to the agenda, the leaders speech and award ceremony will not be very long, and there will be a dinner afterwards, so there is still a chance. ?According to the previously assigned seats, Chang Haonan and Xu Yang were actually next to each other, and both were very close to the front. ?But it makes sense to think about it. They are almost the only two people in the audience who are not members of the military, nor are they affiliated with state-owned enterprises such as the aviation industry or electronic technology group. In fact, that paper is quite influential in the control academic community around the world. ? Xu Yang, who was wearing high heels, followed Chang Haonan and whispered to him. How to say? The two of them found their seats and sat down while communicating in a voice that only the other party could hear. After the paper was published, my supervisor when I was studying in the United States contacted me directly and asked me if I was interested in teaching at Berkeley. It would be best if I could bring another author with me. ?Xu Yang''s words almost frightened Chang Haonan who had just sat down. For a moment, he even wondered if the other party was sent by someone to instigate rebellion. But this idea was quickly dismissed. Even if he wanted to instigate rebellion, it would be too stupid in this situation, and Xu Yang didn''t offer any very attractive bargaining chips. Not like. So you refused? Chang Haonan asked while maintaining a calm tone. As expected, Xu Yang nodded: Of course, otherwise I wouldnt have had the chance to come here. Originally, the conditions he offered were quite good, but after thinking about it, I still feel that I would rather work with you, Dr. Chang Obviously, there is something in this. ?But Chang Haonan didn''t have time to think about it carefully. Because all his attention was quickly attracted by the two people who had just walked in and sat in the middle of the rostrum. ?He knew both of them. Or to be precise, I have seen them all. On the photo ?Todays battle is indeed huge! (End of this chapter) Chapter 237 First Class "Operation Bat Hunt" Commemo Chapter 237 First Class Operation Bat Hunting Commemorative Medal Even though Mr. Wang and Mr. Liu were present, it was a celebration and commendation meeting after all, so the overall atmosphere was relatively relaxed. The first is, as usual, words of praise and encouragement. ??The two leaders are both people who have been on the battlefield. They also speak with a full military temperament, and their tone is sonorous and powerful, without any sloppiness. Since there was no live broadcast, and the attendees were all pure people who had been screened over and over again, people on and off the stage also showed their true feelings without hesitation. ?Especially Mr. Wang, who has gray hair but is still energetic. Although he has retired, on such a special occasion, it is most appropriate to invite him to come out and provide some encouragement to the younger generations. After all, he is an old man who is known as the "Nine-Star Warfighter" and has shot down and damaged 9 enemy planes in total. It can also be regarded as reflecting the inheritance of the People''s Air Force. "In sixty-seven years, that is, exactly thirty years ago, the J-6s of the 70th Regiment of the 24th Air Division shot down an F104G fighter jet off the coast of Chongwu. Since that time, our air force, including the naval aviation of course, has had 30 We havent achieved any results in air combat in years. Mr. Wang behind the podium put down the speech he had prepared, looked at the packed venue in front of him, and began to improvise: "A few years ago, before I retired, many people questioned whether our Chinese pilots had forgotten how to fight? Especially after 1991, such voices became more and more frequent, even Some of our own people have gradually come to think this way. In the past, this was an unanswerable question because we couldnt convince others with words alone. But now, our heroic comrades and commanders have proven that this idea is wrong and absurd! Our Air Force is still a team that rejoices when it hears a battle, is brave and tenacious, and will win if it dares to fight! "Only a year ago, when we faced the provocative F14s and F18s, we could only take off hundreds of J-6s to deal with it with sheer numerical superiority. But the Air Force is a high-tech branch, and courage alone is not enough. For a country the size of China, it is not enough to just buy planes from abroad. "Fortunately, in the past six months or so, comrades from the military industry system have brought many surprises, especially last year''s Xiangzhou Air Show. I went there on the first day and saw the flight performance of our J-8C fighter jets after the opening ceremony. It was very exciting. Wonderful." "At that time, I told Comrade Lin Hu, who was traveling with me, that if I were 30 years younger, I would like to fly on it myself. He replied that it was a pity that this kind of aircraft did not have a two-seater model, otherwise I could try it now. " Chang Haonan off the court smiled knowingly when he heard this. Mr. Lin, who is not present today, is 70 years old this year. If there are no big changes in the timeline, he will really have the opportunity to fly a Su-30 to perform some stunts at the Moscow Air Show in a few months. . ?But thats all for later. There is some room for adventure in two-seat aircraft with the help of an instructor. The air forces of many countries even have special open day activities, and two-seat aircraft take some public figures to experience flying for publicity, but single-seat aircraft only have one pilot. If something goes wrong, it is completely irreversible, so the control of flying qualifications will be very strict. No matter what your status is, if you do not meet the requirements, you will not be allowed to fly. After praising the performance of the J-8C, Mr. Wang turned the topic to the pilot: "Of course, the plane is good on the one hand, but our comrade pilots are also good. Some technical essentials are well mastered in training, but when it comes to facing enemy planes, they all forget it as soon as their minds get hot. And this time I have read the mission briefing. It is not easy to stay calm and not be impulsive or make mistakes for the first time. In this regard, you are much better than me. " "The first victory our brigade achieved that year was a Meteor F.MK8 shot down by Comrade Liu Delin. It was an old model from the end of World War II. At that time, we were flying a MiG-15, which was the most advanced fighter jet in the world. Taking advantage of the fact that four of them hit one, the enemy knew they couldn''t beat it, so they just ran away and didn''t fight back at all. In this case, our four planes shot down all the shells, and we were lucky enough to shoot down the enemy plane. " When Wang Lao said this, he laughed: "When I first saw the shadow of the enemy plane, I was thinking about pulling the trigger and firing. I forgot everything I learned. I didn''t even think of using the halo sight. When I reacted, I realized that all the shells were empty. " But that was the first time. Gradually, everyone gained experience and became more proficient in their skills. Later, some of the best were even able to hit targets that could not even be tracked by the sights while flying diagonally at supersonic speeds. "In today''s air combat, there are fewer opportunities to use cannons. They all use missiles and beyond visual range attacks. Frankly speaking, our aviation force has little experience in this area. If I remember correctly, until this year At the beginning of the year, the total number of pilots in the entire army who have fired medium-range air-to-air bombs has just exceeded double digits. Therefore, the two pilots who participated in the battle this time, your experience is very valuable. I hope you can summarize some methods. Promote the essentials of beyond-visual-range air combat throughout the entire army! After the leaders speech, the awarding ceremony was naturally held. Zheng Liangqun and Chen Jialiang, who directly participated in the battle, as well as the team leader who took overall command, undoubtedly received first-class merit. Other commanders and combatants who participated in the bat hunting operation also received second- and third-class merit awards respectively. Originally, according to Chang Haonan''s estimation, the ceremony should be almost over here. Because first, second and third class merit are internal honors of the military system, people like them who do not wear military uniforms cannot get them even if they have extraordinary achievements. As for the rewards from their respective units or personnel departments, they obviously have nothing to do with todays theme. However, after Zheng Liangqun and others received the medals and returned to their seats, Mr. Wang picked up another red-covered document, and then turned his eyes to the other side of the venue: The following commemorative medals will be awarded to local comrades who have made outstanding contributions in this bat hunting operation! First of all, the list of people who have won the third-class Bat Hunting Operation commemorative medals will be announced! Hearing this sentence, Chang Haonan was briefly surprised, and a glimmer of light flashed in his eyes. His heart was moved. ??Which man didnt have the dream of making meritorious deeds and receiving awards when he was young? Although strictly speaking, medals, medals and commemorative medals belong to three things. And in the vast majority of cases, medals > medals > > commemorative medals. ?The first two must be rewards for some kind of meritorious service, while the conditions for issuing commemorative medals are often much looser, somewhat similar to participation awards. But everything is special. The participation award also depends on what you participate in. ?For example, the Bat Hunting Operation medals this time are specially designed for special purposes. There is no shop like this in this village. The gold content is obviously much higher. ??And looking at this situation, a commemorative medal is actually divided into first, second and third grades. It must be with the intention of rewarding, but because there is no way to directly issue military medals to local personnel, so I have to take advantage of such a loophole... In short, there are many people who have received third-class medals, such as Zhong Shihong from Factory 410, Lin Shikuan from Institute 601, and even Xu Yang. ?Chang Haonan didn''t hear his name. ?This relieved him After all, if you get a third-class medal, it really means thank you for participating. Chang Haonan had never even thought about not being able to get through to the third class. Just kidding, I still have some confidence. The number of people who received second-class commemorative medals was much smaller, and they were all key personnel directly involved in the August 3rd Project. After these people received the awards and returned to their seats, Mr. Wang finally picked up the third document on the podium: The people who have received the first-class Operation Bat Hunting medal are Although he had already guessed in his mind, Chang Haonan was still a little nervous in anticipation. Aviation Industry 601 Research Institute, Yang Fenghata. As the chief designer of the entire August 3rd Project, he deserves the title. Electronic Technology Group 14 Research Institute, Guo Lin. For some people who don''t understand the situation, this name seems a bit unfamiliar, but in fact it was him who judged the type of interference on the two J-8Cs in the flash of lightning, and was able to successfully shoot down the one that was about to escape. MiG-25 in Pakistani airspace. Aviation Industry 606 Research Institute, Yan Zhongcheng. Its not surprising either. And the list should look like it is sorted by the number of strokes in the surname. And Chang Haonan, School of Aeronautical Science and Engineering, Beijing University of Aeronautics and Astronautics! (End of this chapter) Chapter 238 The navy also wants new equipment Chapter 238 The Navy also wants new equipment Lao Wang finished reading and closed the document in his hand. Since todays celebration was not only attended by people from the aviation industry system, many people were a little surprised by the name just like Guo Lin. ?However, when Chang Haonan''s name was said, several areas of the venue almost immediately burst into warm applause. ??Of course they are comrades from the aviation industry, electronic technology and test pilot units. ? No one knows better than them how much contribution Chang Haonan made in the process of finalizing the design of the J-8C and finally entering service. So they also gave the most powerful support at this time. After the dust settled, Chang Haonan himself breathed a sigh of relief. Satisfied! Congratulations, Dr. Chang. Xu Yang next to him applauded and congratulated Chang Haonan in his ear as he was about to stand up: Looking at everyones reaction, it should be considered a success. The latter was also immersed in the excitement of receiving such a level badge for the first time in his life. He was not pretentious. He nodded slightly to thank the other party for the congratulations, then left his seat and followed Yan Zhongcheng to the stage. . For the first two medals, the staff will directly deliver a wooden box with a lid to the recipient, and then open the box and take a group photo. After all, there are a lot of people, so if we come one by one, we probably wont need to prepare a dinner party. This time, several leaders who attended the celebration party personally presented awards to the four people. ?Chang Haonan watched in a daze as Mr. Wang took out the golden medal from the packaging box. It is the style of lapel (hanging on the chest). He breathed a further sigh of relief. Although in terms of shape, large ribbons and collar ribbons are of a higher level than lapel ribbons, collar ribbons in China tend to be overused. Secondly, the ribbons are too long and are not stable to wear, which leads to the final wearing failure. The effect is a bit like an athlete''s medal... In short, judging from Chang Haonan''s superficial aesthetics, the scarf is better. Mr. Wang stepped forward and fixed the pin on the back of the medal to his left chest, and then the two shook hands. Comrade Xiao Chang, I heard about you from Director Ding. You are young and promising! I would also like to thank the organization for allowing me to put my abilities on a platform and for giving me full trust. Although his brain function has not fully recovered, Chang Haonan can still respond to this standard answer. "The future of the People''s Air Force needs young talents like you. To be honest, the conditions we can provide now are not enough..." The award ceremony was not a good place to chat for a long time, so Mr. Wang just gave a few words of encouragement. After returning to his seat, Chang Haonan still couldn''t help but look down at the golden medal pinned to his chest several times. The chapter body uses design elements such as five-pointed stars, swords, flags, rays of light and the Great Wall. In the center of the circular chapter surface, there is a MiG-25 aircraft pattern broken into two parts. Clear intention and direct expression. Although the design is nothing new, it doesnt matter. Earth to the extreme natural tide. Besides, the value of this thing lies in the meaning behind it. In short, its a pleasure.??? After all three levels of commemorative medals have been awarded, the first half of the entire event, that is, the commendation ceremony, has ended. The dinner that follows will be much more flexible and free in form. ?Of course, the banquet will definitely not be held in this large conference room. So there is about half an hour left for everyone to make their own arrangements and change places. Mr. Wang has retired after all, and he has no airs. Along the way, he was asking about the light and heavy third-generation fighter projects. "If there are no surprises, the first prototype of Project 10 will probably complete its first flight between the second half of this year and the beginning of next year. However, because the turbojet 15 has not been developed and the turbofan 10 has not made much progress, it will only be done for the time being. It can use Russian-made aviation power. Of course, we have considered leaving a margin when designing the inlet and flight engine matching. In the future, we can replace it with domestic power of similar size. " Xue Chishou, chief engineer of the 611 Institute, reported from the side. The results achieved by the J-8C are both pressure and motivation for him. In fact, since about 1995, Project No. 10 has become the most important project of the Air Force. It can obtain more resources than in the past, but it also means that they must not let go of the chain. Fortunately, some subsystems planned to be installed on the J-10, such as radar and data bus, have been verified on the improved J-8C, which can be regarded as a reduction for Project 10, which was originally expected to use more than 60% of the new technology. risk. Mr. Wang nodded with satisfaction, then turned to the other side: What about Project 11? ??The answer this time was He Ming, who had taken Chang Haonan to visit the final assembly workshop of Factory 112 before: "According to the plan, the first two aircraft to be assembled by Factory 112 will be rolled off the production line by the end of this year at the latest. Many problems in the manufacturing process, especially those in the digital drawing and production process, have been solved before, so in this regard The efficiency is faster than initially expected, but in terms of production and manufacturing, the comrades from the 601 Institute should want to make some modifications to the aircraft with the engineers from Sukhoi, and Mr. Sun knows more about this." When He Ming said this, Chang Haonan followed everyone''s gaze and discovered Sun Cong, who was not too inconspicuous among the crowd. Oh, thats right, we plan to improve a process method and a design issue of the Su-27S aircraft in the process of opening up the parts production line. "The first thing is about the large-sized titanium alloy load-bearing partition frame of the aircraft. Gongqingcheng has always used the method of manufacturing two small-sized parts first and then welding them. However, the yield rate of this welding technology is currently very low. It is low, and more importantly, it will bring a lot of unnecessary dead weight, so we hope to change it to integrated molding. "In addition, in order to compromise with the original N001 radar, the Su-27 has a weak performance area in the transonic speed section. Originally, the width of this section was actually very narrow and had little impact, but the original flight control restricted the entire speed section across the board. The maximum angle of attack and available overload, we are prepared to achieve precise control of the available angle of attack through digital fly-by-wire and centralized flight computers, truly unleashing the maximum potential of the aircraft design, without causing the aircraft and engine to exceed the safety envelope, and It can maximize the maneuverability of the aircraft..." ??Although Sun Cong was talking about the J-11s problems, everyones attitude towards it was still positive The problem wont exist just because you dont talk about it, and now at least someone is starting to think of a solution. Especially the few comrades in the Air Force pilots who were following behind. They come from Mr. Wangs old unit, the 3rd Air Force Division, and are also the first unit in the army to switch to Su-27SK. They have a deep understanding of the problems mentioned by Sun Cong. It''s just that the Chinese army is still at the stage of being useful, so it is mainly thinking about how to overcome difficulties. ?At this moment, another cheerful voice sounded from around the crowd: Comrades in the military-industrial system should not favor one over the other. When will we consider purchasing some new equipment for the navy? Mr. Liu? As the "Father of Aircraft Carriers" of China, Mr. Liu''s contribution to naval equipment construction and his affection for the navy are beyond doubt. ?Now I see my old comrade-in-arms happily looking forward to the future with his subordinates. If I say Im not jealous, that would be a lie. (End of this chapter) Chapter 240 Aircraft diversion is also difficult (Part 1) Chapter 240: Aircraft modification is also difficult (Part 1) Not all the participants were qualified to follow the two leaders all the way, so when Chang Haonan and the others were led to the banquet hall by the staff, the vast majority of people had been waiting here for a while. ??Several comrades belonging to the navy and air force quickly found their comrades, leaving only the scientific research people on Chang Haonan''s side gathered together in twos and threes. At this time, there was still some time before the banquet officially started, so everyone was not in a hurry to take a seat. Speaking of which, Mr. Yan, did 701 mention other design elements of the new frigate? Chang Haonan is quite interested in this model, which he already knows will be typed as 054 and become the new generation of main battleship of the People''s Navy. The main reason is that it will be very different from the 054 and 054A in the previous life. Well, Deputy Chief Engineer Lin did say that, but I dont know much about ship design, so I only heard a general outline except for the parts related to the power system. Yan Zhongcheng stretched out his hand to straighten his hair, and showed a slightly stiff smile: "The plan of Institute 701 is to have a displacement of 4,500 tons and a long forecastle deck. The first three ships will directly use the 6-seat 8-unit 3K95 short-range air defense system imported from the Antai Scientific Research and Production Complex. It is said that it is being developed with the Army. The purchased 9K331 field air defense system has the same origin, which will reduce the pressure on ammunition production units after the introduction of production lines or imitation in the future. Obviously, after seeing the true hero of the short-range air defense system, the Doyle M1, both the army and the navy no longer look down on the Red Flag 7, which is copied from the Sea Sidewinder. The corresponding localization process will obviously start earlier than in previous generations. This is of course a good thing. At least the big brother of the army, which is under heavy air defense pressure, does not need to wait until 2013 to finally start equipping the Hongqi 17. ?Of course, whether Big Brother has enough funds to buy it is another matter. The navy can also obtain the derived Haihongqi 17, which provides a solid final barrier for various ships and builds an ecological niche similar to the vertical ESSM in advance. ??Its just that the curious revolver hanger on the 3K95 still needs to be removed and replaced with the same 8-gun launch box of the same model as the Land-based Doyle. ?However, Chang Haonan was still a little surprised by this uncoordinated configuration: With 48 rounds of ammunition, thats so much? ??Although the performance of the 3K95 system is much better than the Sea Sidewinder/Haihongqi 7 installed on the 052 destroyer, the 9M331 missile it is adapted to is a short-range point air defense system with a range and firing height of only 12km and 6km respectively. ?Different from the more regional air defense missiles that are better, this last shield, which can only protect itself but cannot hold an umbrella, seems to have no need to pack in as many as 48 rounds. ?What kind of scene is this? Can the terminal interceptor fire so many rounds? It is impossible to send just one frigate to such a big scene. ?Of course, if the British saw this configuration, they would definitely cry with envy. ??As long as there are several sets of similar things, it will not be possible for people to sink and damage so many ships on the Falklands. According to Deputy Chief Engineer Lin, this new model of ship has reserved room for modifications for future upgrades. For example, there is enough space on the front deck and inside the hull to accommodate 3S90M with a depth of no more than 5800 mm or similar performance. The vertical launch system is equipped with a total of 6 channels of anti-aircraft missile illuminators on the ship, so several more launch devices were designed. At this point, Yan Zhongcheng paused, gently touched his temples, and after thinking for a moment, he continued: "Although this is what he said publicly, I personally feel that these explanations are far-fetched. Our aviation system sometimes does things like leaving space margins, but if that is the case, there is no need to fill all these places. " "The real reason may be that the frigate they built is indeed a bit big. Its full load displacement and hull size are similar to the 052 destroyer that just entered service. If there is no way to increase the utilization rate of the hull, it proves that it is necessary to design such a The large hull space may cause some resistance. ?After hearing this speculation, Chang Haonan immediately remembered a program he had seen on TV in his previous life. A well-known military commentator said that in the 1980s and 1990s, there was indeed a force that purposefully obstructed the development of naval equipment in the name of excessive investment and impacting the economy. Now it seems that it is not just based on suspicion. . In today''s timeline, due to the smooth finalization of the turbojet 14, Shipbuilding Industry Group, which is more confident in marine power, is also more radical in the design of new frigates. According to Yan Zhongcheng''s description, it should be a relatively A model with better foundation and greater potential than the previous 054/054A. Of course, the resistance will be greater. After all, in the eyes of some people right now, your Chinese navy is actually preparing to equip a model with performance and size that is better than similar ships of the US military in one step. Even if it is just a less eye-catching frigate, it is a "treason" and transgression. Behavior. "Hmm... As you said, it is indeed possible. Fortunately, the two major components of power and ship power should be able to use domestically produced subsystems, so that the actual cost can be reduced a lot, and the opposition will be weaker. " Yan Zhongcheng glanced at Chang Haonan in surprise: "When Deputy General Lin talked about this matter with me, he said almost exactly the same thing as you. But what he meant was to allocate part of the foreign exchange quota that was originally expected to import key parts of diesel engines to enhance the anti-submarine system, otherwise it would be a waste of full-fuel power. High speed and quietness. Yes, it seems that he is indeed going to benchmark and surpass Perry in all aspects. After briefly learning some information about the new frigate, Chang Haonan brought the topic back to Yan Zhongchengs old profession: "The 701 Institute has such a bold idea and wants a little bit of every function. The power requirements for us are quite high." "It is indeed not low, but according to Xiao Chang''s previous communication with Shipbuilding Industry, we have already come up with a Remove the exhaust nozzle, use the dual-rotor structure as the gas generator of the gas turbine, and then equip them with a simplified design of the power turbine for technical verification. Factory 410 will start producing prototypes soon, no surprises If it can be delivered in mid-June of this year, let them start the ground test first, which will also increase their confidence in us. " Yan Zhongcheng nodded, then raised his hand to check the time: Lets go, find our place first, and then we can chat slowly after we sit down. Naturally, the formal banquet at Sanzuomen cannot be in the form of a buffet like the previous ones that Chang Haonan has attended. They are all served at separate tables and according to the menu. High-end is indeed higher-end, but it is not. Its too convenient to talk about things. Of course, the original intention of holding a celebration banquet is not just to let you talk about things... Chang Haonan and Yan Zhongcheng are still old acquaintances in the aviation industry. ?In addition, there is Du Miao Xu Yang from the Institute of Computing Technology. A group of people sat down according to the name tags placed on the table. Mr. Yan, now that the turbojet 14 has been finalized, do you have any ideas about taking over the Taihang project next? The person speaking was Luo Yang, who is currently in charge of the overall project No. 11. This person''s name is naturally very familiar to the reborn Chang Haonan. In the last life, after the ship successfully completed China''s first aircraft carrier-based aircraft landing mission and returned to port, Luo Yang, the commander-in-chief of the J-15 development site, died in the line of duty due to sudden acute myocardial infarction and sudden cardiac death. ?Of course, in 1997, he is still at his most youthful and powerful: "According to the agreement, Project 11 does not include the matching AL31F engine. We are thinking that since this aircraft will become our own J-11 in the future, it will not be a problem to import aviation engines from the Russians, including I think the situation on Project 10 should be similar. It would be best to switch to domestic power at the same time as the J-8C, so that we can make some targeted improvements to the aircraft." For Luo Yang, who is responsible for the overall project, it is of course best to complete these things in one step to save having to do it twice in the future, so he is very concerned about the progress of the domestically produced third-generation turbofan 10. ?But Yan Zhongcheng waved his hand: I probably wont be directly involved in the Taihang project. Now that Im getting older and my old injuries have recurred, my body is really struggling. He was seriously injured while doing engine testing before. He didnt feel it when he was young, but as he got older, some stubborn diseases gradually appeared, especially in autumn and winter: I plan to continue to engage in aviation-to-gas conversion projects in the future, and it will be good to use some of the remaining heat. Compared with the Turbofan 10, which almost completely restarts the stove (in fact, it has not yet been determined where the stove will be and what kind of stove is needed), the work intensity of the aeroderivative fuel project is much lower, and in fact it is not It is closer to the research direction that Yan Zhongcheng was better at in the past. ?? Luo Yang and Sun Cong both showed a somewhat pity expression, but when they saw Chang Haonan sitting next to them, they breathed a sigh of relief. ?Even if they are not responsible for aviation power, they still know a lot about the role this young man played in the shaping process of the Kunlun engine. ??And Project 11 has an inconspicuous advantage. The Su-27 aircraft has a very good air inlet foundation, and the aircraft itself is large, so there is quite a lot of room for engine replacement. ?In addition, twin-engine aircraft inherently have a higher safety margin. In short, as long as the final product is not too bizarre, they can try it first. If it doesn''t work, they can even consider installing an AL31F and a turbofan 10 at the same time, so that even if there is a small problem with the latter, it will not cause any problems. Too serious consequences... Speaking of aeroderivative gas engines, Mr. Liu happened to mention it just now. I wonder how the modification progress of the turbojet 14-core engine is going? ? Sun Cong did not continue to dwell on the topic of turbofan 10, but took advantage of the situation and asked about gas turbines. We have developed an initial prototype for testing on the 701 Yan Zhongcheng had no choice but to repeat what he just said before continuing to add: Our final plan is to remove the original low-pressure components, redesign a low-pressure compressor and low-pressure turbine, and then directly drive the load. This can reduce the size of the gas engine and improve fuel economy. For ships powered by full combustion, It is said to be very useful. However, it will take some time to make this final version of the design. We have found several candidate solutions through preliminary numerical calculations, and then we will optimize them and compare their performance. " ? Xu Yang, who was sitting next to Chang Haonan, had not spoken since he saw Chang Haonan and others entering the banquet hall. He just listened quietly to the conversations of others. ??Although she usually participates in similar activities within the Chinese Academy of Sciences, she is also used to being alone and not actively participating in topics. But today, especially when Chang Haonan, whom he regarded as a valuable partner, also participated in discussions from time to time, Xu Yang suddenly felt that it was not good for him to stay outside the topic. By coincidence, I just talked about numerical calculations. is the direction in which she is good at. (End of this chapter) Chapter 241 Aircraft diversion is also difficult (Part 2) Chapter 241: Aircraft modification is also difficult (Part 2) In terms of numerical calculations, if we need assistance from our Computing Technology Research Institute, we can also provide some supercomputing resources. Xu Yangs voice is unfamiliar to everyone except Chang Haonan. ?So Yan Zhongcheng looked at the opposite side and was stunned for a moment, and then replied: It would be great to have supercomputing resources, but the key factor affecting our progress is not the amount of calculation, but the limitations of software functions and algorithms. ?This time Xu Yang really became interested: How to say? Although the core parts of aeroderivative gas turbines are readily available, marine gas turbines and aircraft engines are still very different in terms of use environment, performance trade-offs, cost control, etc., so it is not enough to copy them completely. Because everyone here is his own, Yan Zhongcheng answered quite completely: For example, warships will have strict requirements on noise and vibration, especially if anti-submarine is the main mission goal, it will be even more stringent, while aviation engines have relatively small restrictions in this regard. Another example is that warships may sail in polar cold waters for a long time, and the gas turbine air inlet must overcome the icing environment. However, because jet aircraft are fast enough, there is almost no need to consider this problem. "This part of the work also involves more than a dozen multi-physics coupling effects such as acoustic vibration, heat, and thermoacoustics. If we want to achieve accurate calculations through current simulation modeling software... on the one hand, it will be very difficult, and on the other hand, considering the current The computing speed of our countrys supercomputer may take longer than building a few prototypes according to the old method. "And this is only a problem faced in the design stage itself. Good designers need to consider the convenience and economy of subsequent production, maintenance, and repair work during the design process. Because gas turbines are not sensitive to their own weight but are sensitive to life and cost. , so Liming Factory plans to use 1Cr16Ni2MoN martensitic stainless steel to produce blades through hot forging. When designing, we cannot only focus on performance like aviation engines do, but also consider the adaptability of blade size and shape to the process, otherwise it will be Theres a problem with the manufacturing plant. During the hot forging process, the interaction between material deformation, heat transfer and structural evolution greatly limits the application of the finite element method in the hot forging process that needs to fully consider the influence of microstructure. It is also a complex multi-physics field. The comprehensive process Yan Zhongcheng is worthy of being one of the early explorers in the field of computer simulation in China. Although he has been left behind by the times because he has not been exposed to the world''s top experience for a long time, he can still organize the work in a clear manner when he really wants to do it. The idea is clear. ?This long paragraph first stunned Xu Yang, and then quickly inspired her fighting spirit. Providing help but not being asked for it was definitely the first time for Xu Yang that a big girl got into a sedan chair. Although current software and algorithms do not support the simulation of such complex multi-physics fields, there are still many methods that can overcome this problem to a certain extent She thought that after raising this topic, she could attract the curiosity of other people, especially Chang Haonan. But everyone seemed to have a mediocre response to this, and the main character lowered his head and fiddled with his chopsticks in a daze. In the end, it was Yan Zhongcheng who took over the topic so that there was no silence: I know how to split these problems into ordinary single-field or dual-physics couplings to solve, but this requires a lot of work to model and write codes, and the hard requirements for calculations are not that high. " "this" ? Xu Yang was a little surprised that the man in front of him who looked to be in his sixties could actually have this ability. She is actually a very pure person, so she immediately respected Yan Zhongcheng: Do you also do research on multiphysics modeling? Its not really about research. I didnt have these technologies when I was studying in the UK, so I didnt learn them. When Yan Zhongcheng said this, he looked next to Xu Yang: "Actually, this also requires Comrade Chang Haonan''s experience and complete notes left in the previous design improvement work on the turbojet 14. During this period, I took advantage of my position and often took them to read and think about. Gradually I understood something further. Dr. Chang? ?This was somewhat beyond Xu Yangs expectation. She is certainly aware of Chang Haonan''s level, but it is one thing to be capable, and it is another thing to be able to teach or inspire others. In fact, the more talented people are, the less good they are at this aspect. Similar to asking Jordan to be a coach You just need to take off and wait for your opponent to fall before shooting. Chang Haonan, who was wandering in his mind, suddenly heard someone calling his name, and subconsciously raised his head: "What''s wrong?" I wonder, Dr. Chang, if you have any specific ideas about this type of multi-physics simulation modeling calculations? ?Although this occasion is not academic enough, Xu Yang still can''t restrain his curiosity and wants to hear the other person''s thoughts. On the one hand, it is to communicate with each other, and on the other hand, I also want to see who of the two is better at this aspect. However, Chang Haonan shook his head directly: I dont have any specific ideas, because the current tools actually only support the simulation of two-dimensional fields. No matter how sophisticated the method is to split the specific problem, many variables will be ignored, and the accuracy of the results can be imagined. There are still many problems to follow. A lot of adjustments need to be made based on experimental data and experience. ?When he first heard this answer, Xu Yang felt a little disappointed for a moment. But her intuition told her that Chang Haonan probably hadn''t finished speaking yet. Sure enough, after a pause, the latter continued; For example, the classic phenomenological model that expresses flow stress through hyperbolas, and the high-temperature flow stress model that expresses material parameters as polynomials are purely mathematical models that do not consider the microscopic mechanism in the deformation process of metal materials. The influence of macroscopic deformation parameters such as deformation temperature, strain rate and strain amount on flow stress is known. Therefore, for each material, even if only one of the elemental components changes, it must be started all over again. " What I was thinking about was whether we could find a way, at least from a physical perspective, to describe the thermal deformation behavior of the same type of material and, further, develop a new tool, I mean a software, to do that. Three-dimensional finite element numerical simulation, for example, establishing a coupling analysis system of deformation-temperature-structure evolution for the martensitic stainless steel just mentioned, so that the effects of deformation parameters on the temperature field, strain field and microstructure field can be studied at the same time without splitting. The impact is obviously more instructive for actual production process design and optimization. Ah this ??Xu Yang felt for the first time that his thoughts were being thrown away by others. ?It was like under the apple tree that influenced physics, while she was still busy picking up apples, others were already thinking about why the apples fell from the tree... (End of this chapter) Chapter 242 We must have bottom-line thinking on key technologies Chapter 242: Have bottom-line thinking on key technologies So...Dr. Chang, you already have plans in this regard? ?Xu Yang''s voice was a little dry, but she didn''t care about that much anymore. ??If the idea just mentioned by the other party can come true, it will definitely trigger a major earthquake in the field of numerical computing applications. We cant talk about the plan yet. We can only say that we have some preliminary ideas, but we are still a little far away from the plan. We need to fill in some theoretical and experimental gaps. ?Chang Haonan shook his head. Even with systematic help, he would not be that awesome. This should be a somewhat lengthy, step-by-step process. After all, if he alone, or a few people around him, conduct experiments and collect data, he may not be able to optimize what he wants in the next life. So a wiser choice would be to create the most basic version first, and then rely on the entire industry to provide feedback and upgrade step by step... ?It seems to be similar to the thinking of some car companies before his rebirth. New car launches are all cake, and all features have to wait for OTA. Ahem In short, although there is some controversy in the cycling circle, the routine itself is not problematic. As the functions of software become more and more complex, it is gradually becoming unfeasible in terms of technology and cost to release a so-called "complete version" in one step. Instead of forcing a semi-finished product with comprehensive functions but poor reliability, it is better to specialize first Focus on polishing a few specific modules, gain users and reputation, and then gradually expand. And he just borrowed a little bit from the Internet thinking more than 20 years later. "Numerical simulation of multi-physics coupling is still a blank in the world. As far as I know, only a few schools have some very simple tool kits. If a breakthrough can be made in this area, it will definitely be possible." A major event that affects the entire industry! ?Xu Yang looked at Chang Haonan beside him with bright eyes. This is true, but the first step is to be down-to-earth. ?Chang Haonan expressed his thoughts: "First, we simulate several commonly used single physical fields such as heat transfer phase change, structural mechanics, fluid mechanics, and electromagnetic fields, as well as weak simulations involving 2-3 physical fields such as convection diffusion, convective heat transfer, thermoelectric coupling, and fluid-solid coupling. Once the coupling problem is solved, we will gradually tackle more physical fields and stronger coupling problems. But if thats the case Xu Yang frowned slightly when he heard this: "Dr. Chang, you should also know that almost all single-physics simulations now have relatively mature solutions, and weak coupling problems with low nonlinearity can also be solved through brief coupling or full coupling. I am afraid that for new It wont be very attractive to users What she said certainly makes sense. Human beings are all inert, and they will stay the same if they can. This is especially true in the engineering field. ?Before Chang Haonan was reborn, there were even some engineering software that had not been updated for many years and only supported Windows 98 system, so that their research institute had always kept an old computer that could be called a cultural relic. But the problem is that, similar to the situation of civil aircraft airworthiness certification, if you dont seek changes now, and you want to do the same thing in the future, the price you pay will be hundreds and thousands of times higher. Chang Haonan, who has experienced this once, is very clear about this. On the one hand, it is early 1997. Although related industrial software in Western developed countries has been developed for about 20 to 30 years, it has just begun, or has not yet begun to think about commercialization. Everyone is still on the same page. On the starting line. On the other hand, in China, only universities, research institutes and state-owned enterprises that use commercial software extensively are places that can be reached by administrative orders, and relevant software ecological barriers have not yet been established. In fact, China''s own semiconductor industry and software industry were not established very late. They have already improved in the early 1980s. The gap with Neon is about 5 years. Although it is not advanced, it can still be regarded as advanced. It has formed its own industrial system. However, like many industries, the nascent development trend has been suppressed. Without top-down support and without a mature business model, scientific research, education, and industry were quickly isolated. Hardware manufacturing plants have become assembly lines that provide cheap labor for foreign companies, and the software industry has completely become a vassal of others. A large number of software engineers who originally developed software independently have become ordinary low-level code farmers. Only some research institutes and schools are left to continue research, but they are also unable to support themselves. After losing their ecology, they are increasingly disconnected from actual production. It was not until more than twenty years later that due to various reasons, we finally paid attention to this aspect again. In fact, a similar situation also occurred in Maozi after the disintegration. In 1990, the electronics industry in Mao Xiong was probably equivalent to the level of the United States in about 1985. But by 2000, they were still stuck at the level of Americans in 1985, and completely missed the explosion of the information industry in the 1990s (actually it was even worse, because they didn''t even have the opportunity to follow other people''s standards). It was also more than 20 years later, due to sanctions, that the industry was revived. By that time, it had already lagged behind the advanced level for many years. In short, it was difficult for people in 1997 to understand the bitterness and sorrow involved. For Chang Haonan, who was reborn, it was not too late to make amends. ? He ??really doesnt know anything about semiconductors now, so he should start with industrial software. If we only consider it from a technical perspective, Researcher Xu is right. Chang Haonan used a more euphemistic expression. After all, no matter how talented a person is, it is difficult to transcend the times. It is normal to have the same thoughts as just now. Xu Yang could naturally tell that Chang Haonan had different opinions from hers, but considering the other party''s ability, she just showed a curious expression: But industrial software is not entirely a technical issue, otherwise there would be no Wassenaar Agreement. Now that we use foreign software, we really dont feel any inconvenience other than the language barrier. But thats because many software have not yet been commercialized, or are in the process of expanding the market in the early stages of commercialization. But if we continue to let These foreign companies are attacking our city and territory unscrupulously, and there is no telling what will happen in the future. Right now, everyones starting point is pretty much the same, but the information industry is developing so fast. The more users an industrial software has, the more information feedback the developers will get, and a database with larger quantity and higher quality will be formed. In order to develop a more usable data model. If we cannot keep up with this step, we will not be able to keep up with each step. If one day in the future, some industrial software suddenly appears in the Wassenaar Agreement, we will think about it then. Its more difficult to chase and accumulate data from the beginning. The powerful words made the atmosphere around the whole table become a little heavy. Xu Yang, who was a little unimpressed just now, his pupils trembled sharply after hearing this, as if he had seen a new continent. She would choose to return to China from the United States in the early 1990s, and there was naturally no shortage of feelings about her family and country. But many things are not just about feelings. The struggle on the scientific and technological front is also a struggle, and it requires skills and strategies. In this regard, obviously no one can compare with Chang Haonan, who has experienced the trade war era. Actually, we have made a breakthrough in the export of industrial software. Looking at the people who were lost in thought, Chang Haonan once again dropped a bombshell. ??Anyway, the people sitting here have sufficient authority. Industrial software...export? ?Xu Yang, who was outside the aviation industry system and had no idea about China''s negotiations with Europe, felt for the first time in his life that his mind was a little out of his depth. You must know that Chinas software industry is still at a stage where it is not clear how to localize the UI interface. Why was it exported? Chang Haonan nodded: Yes, this is a small software that predicts the icing probability and ice type of aircraft in humid and cold environments. It is not our first creation, but its function is definitely better than any foreign competing products, and it is sold to Europeans. This shows that as long as we can create unique functions or features, we can completely defeat others in the software field! Actually, considering this was at the dinner table, he still had half a sentence left to say ??Anyway, the performance of everyone''s products now relies on defense. Even if what we make is a defense, as long as it is made into chocolate flavor, some people will pinch their noses and eat it. ?At this time, on the other side of the dinner table, Sun Cong, who had been listening to the conversation between the two just now, suddenly said: I have also heard about this matter, but I have never been sure whether it is true or not. Now that Comrade Xiao Chang has said it, it is indeed a huge breakthrough..." With the praise, Chang Haonan naturally took it up: Of course, this time we have indeed taken advantage of a rare opportunity to create discord between Europe and the United States. No one can guarantee that other software in the future will have such a good response internationally. However, what I want to say is that in terms of including but not limited to industrial software, we must have bottom-line thinking and cannot let others hold our necks! (End of this chapter) Chapter 243 Jinling, 14th Institute of Electrical Engineering! Chapter 243 Jinling, 14th Institute of Electrical Engineering! I think what Comrade Xiao Chang said makes sense. The first person to clearly express his support was Xue Chishou, who was in charge of Project No. 10 of the 611 Institute: "Bottom line thinking is a good word to use. Thinking back on the development of our country''s military industry, to sum up, it is a process of constantly improving bottom line thinking. Although my understanding of business is limited to setting up a stall and selling noodles, I think the principle should be similar. " ?This sentence made everyone who knew the inside story laugh, but the expressions on their faces did not become relaxed because of the smile When Project No. 10 was just launched, it was the most difficult time for China''s military industry. In order to subsidize the team''s funds and maintain the living expenses of the project team members, the chief designer Song Wencong and the chief engineer Xue Chishou both led a team to sell them after work. Noodle fundraiser. ?Of course they are not the only ones, except for the really young Chang Haonan and Xu Yang, everyone sitting around this table has experienced that era. ??Of course its a joke in retrospect, but for everyone at the time, it was the darkest moment. Fortunately, everyone has experienced strong winds and waves, so we wont emo for too long on such occasions. Xue Chishou just paused and continued: When doing business, of course there is a contract, but I think a contract is similar to a treaty. If you really dont have any countermeasures, people wont abide by it. I can only say that as expected of an old comrade, I still see clearly in these aspects. Everyone else nodded. As the deputy secretary of Institute 601, Luo Yang, who is actually in charge of the work, even expressed his position directly: Take Fluent, which has just been promoted and applied in recent years. Anyway, there are still few project files accumulated. If there are domestic alternatives with similar functions and performance, our 601 institute will definitely be willing to use it instead. ?In addition to the working relationship established between Chang Haonan and 601, Luo Yang himself actually graduated from Beijing Airlines and is considered a senior of the former. Be it public or private, he should support this matter unconditionally. ?While a few people were talking and chatting, the dinner party officially started. ? What should be said has been pretty much said in the previous meeting, so there is no complicated process now. Mr. Wang and Mr. Liu each said a few words of blessing and expectation and took their seats respectively. ?Of course, in the middle of the banquet, they still have to go to some representative tables to express condolences. Just like Chang Haonan and the others. I just saw your discussion was very lively. Lao Liu slowly drank the white wine in the small cup in his hand and seemed to be in high spirits. Yes, we were just talking about industrial software, and Comrade Chang Haonan made a statement, saying that we must have bottom-line thinking when it comes to key technologies! Xue Chishou, the oldest among the group, briefly summarized what Chang Haonan meant just now. After hearing the report, Mr. Liu was unexpectedly stunned for a while, as if he had thought of something. After a while, he picked up the glass in his hand again, added half a glass of wine, and then clinked glasses with Chang Haonan alone. After drinking it down again, he turned around and left. Looking at the retreating figure, someone suddenly whispered: Mr. Lius regret is that he didnt promote our own aircraft carrier project, right? For a moment, Chang Haonan almost thought that he had returned to more than 20 years in the future, but then he realized that what the other party was talking about was that Mr. Liu was about to retire. But for himself, this sentence obviously has a different understanding. In the previous life, just over a year before the No. 16 ship was commissioned, Mr. Liu passed away in January 2011. After all, he never saw the day when the first Chinese aircraft carrier was commissioned. "It doesn''t matter, we Chinese military workers pay attention to passing on the fire from generation to generation, he will definitely see it." ?Chang Haonan put down his cup. ?However, the matter of aircraft carriers is a bit far away for China, whose current largest combat ship is less than 5,000 tons. Secondly, the people sitting here are all people from the aviation industry system, and they really dont know much about it. So everyones topic quickly returned to several key models currently being promoted. But among them, Luo Yang glanced at Chang Haonan who was diagonally opposite, showing a thoughtful expression. In short, the celebration banquet ended with a pleasant discussion on academic and industrial development. When leaving Sanzuomen, Xu Yang specifically found Chang Haonan and handed him two pieces of paper, one of which had his office phone number and pager number written on it. Dr. Chang, lets leave each others contact information. Its almost the 21st century, and the efficiency of writing letters is really low. At the end of the sentence, she couldn''t help but smile. When I wrote the first letter, I made this decision because I really couldn''t contact Chang Haonan by phone. As a result, the two of them communicated through letters several times, and even sent a message in this way. This article is not the top publication of their main business. Phone number ?Chang Haonan didn''t know how to answer for a while. ?In this era, not many people have access to mobile phones, and most of them have landline phones. Since his job requires him to travel around, he rarely stays in a fixed place throughout the year. Ill leave you the laboratorys landline number first, but I rarely stay in the laboratory, so you may need to transfer the call a few times. ? Xu Yang nodded and took the note from Chang Haonan: Dont you need a pager? In fact, since last year, that is, the second half of 1996, the pager business has begun to decline significantly, especially in big cities like Beijing, which has been severely affected by the price reduction of mobile phones. ?However, in the pre-Internet era, this phenomenon could not be fed back to users very quickly, so many people still used pagers as their main method of contact. Well...I havent bought it yet. If I really need it later, I might just buy a mobile phone. Before his rebirth, Chang Haonan was an ordinary poor student. He took the initiative to make phone calls to contact his family. Naturally, he would not spend a lot of money to buy a pager. After his rebirth, Chang Haonan basically didnt run around. Even during his breaks, he basically stayed in the dormitory or at home where he was not difficult to find, so there has been no relevant demand. ??More importantly, he knew that pagers would be eliminated in big cities in a year or two at most, so it was naturally impossible to buy them now. You cant tell, Dr. Chang is quite rich. Xu Yang smiled and folded the note paper and put it in his bag: Then please contact me more proactively in the future. Of course... no problem. ?Chang Haonan suddenly felt that he couldn''t cope with the other party. After leaving Sanzuomen, Chang Haonan naturally returned to his home near the school. According to his original plan, he should spend a few days to discuss the teaching materials with Professor Liu Hongbo. In addition, he had been fishing in Haojing for a while, so he went directly to the meeting early the next morning. We arrived at the long-lost college building. ??When Fang Zhen, who came to the laboratory early, saw Chang Haonan standing at the door, he even showed a moment of confusion. Junior brother? Why are you here? Shouldnt it be normal to come to the laboratory... ?Chang Haonan showed a dumbfounded expression. Of course its normal for us to come to the laboratory. Fang Zhen stood up without saying a word, picked up the thermos next to him and poured a glass of water for Chang Haonan: Junior brother, drink water. He decided to take advantage of the situation by taking advantage of the situation and at the same time maintain a good relationship with the other party. In fact, Fang Zhen is a complete outsider and knows almost nothing about what Chang Haonan did during this period, but even the limited information that can be revealed is enough for him to see that his junior brother is extremely Extraordinary people. Hey, okay, thank you, senior brother. I dont know why junior brother came to the laboratory this time... ?Unconsciously, Fang Zhen''s tone sounded a bit like he was talking to Du Yishan. ?Chang Haonan took the water glass and took a sip: Oh, lets talk to Senior Brother Liu Hongbo about compiling textbooks. Teaching materials? You and senior brother... compile teaching materials together? Even though Fang Zhen had already completed all the courses, this incident still shocked his soul greatly. Yeah, because our graduate students will need it in the second half of the year, so its still a bit urgent. So its still a postgraduate textbook? Fang Zhen is already a bit incompetent. Good guys, you should compile your own teaching materials, right? Why dont you just go to class... ?But Chang Haonan came at the wrong time. Liu Hongbo took half a day off today because of family matters and would not come back until the afternoon. ?And Guo Lins efficiency far exceeded his imagination At noon that day, Chang Haonan received a formal letter from the 14th Institute of Electrical Engineering, inviting him to participate in a research project on a new type of electronic jamming pod. The plane to Jinling will take off in a few hours. (End of this chapter) Chapter 244 Preparing to replicate electronic warfare pods Chapter 244 Preparing to copy the electronic warfare pod As one of the economically developed key cities in the Yangtze River Basin, Jinling actually has many flights to the capital every day. Logically speaking, Chang Haonan just needs to ask the college to buy him a plane ticket like he did when he first went to Shengjing. But after experiencing a series of previous events, Chang Haonan is naturally no longer that unknown little person. ?For example, the most obvious point is that in order to ensure safety, all his air travel will be handled free of charge by United Airlines, which has an Air Force background. Chang Haonan himself was happy to save the trouble and boarded a Boeing 737 aircraft operated under the name of flight CUA353 in the afternoon. This flight is real. It flies from Beijing to Chancheng via Jinling, but it is not open every day. The three airports it passes through, Nanyuan, Daxiaochang and Shadi, are all military-civilian airports under the jurisdiction of the military, which is very suitable for Chang Hao. Nan traveled without making too much noise. Xu Yang, who was going to Jinling with him, also took advantage of the opportunity and experienced the first-class cabin operated by United Airlines. ?However, the price of her air ticket still has to be paid by the 14th school, but it only costs the price of economy class. ?Of course, despite the name, by the late 1990s, first class on most short-haul aircraft had essentially become business class with upgraded hardware. Why is the Electronic Technology Group so rich? Can they buy first-class flights for both of us? ? Xu Yang put away his carry-on luggage and then felt the seats that were more spacious and softer than those in the economy class. She didnt know the inside story. She was only told about the upgrade when she came to the airport to exchange her ticket, so she naturally thought it was an arrangement made by Jinling. Its okay, although Dianke Groups benefits are indeed good, I dont have to spend money to fly. Besides, even if we dont upgrade, they cant sell many tickets here. ?Chang Haonan said as he flattened the seat to nearly 180 and prepared to take a rest. ?In this era, there are only a few people who can afford to fly, and even fewer passengers are willing to spend money to buy higher-class cabins. ?As a result, those who finally flew first class were mostly people like Chang Haonan who didn''t spend any money, or at least people like Xu Yang who were upgraded without spending money. Is it OK without spending any money? In two days, Xu Yang has become accustomed to the various surprises brought by Chang Haonan, so he did not show any surprise, but only said half-jokingly: If I had known there would be such a good thing, I would have joined your Aviation Industry Group after returning to China. Obviously she thought this was a welfare within the aviation industry system. Chang Haonan did not clear up the other partys misunderstanding, and replied in the same joking tone: Its not too late if you want to join... When the plane landed, the 14th Institute of Electrical Engineering naturally arranged a dedicated person to pick him up. It''s just different from the common 212+Coaster configuration here in the north. Jinling uses the 212+Iveco Deyi which is very local. ? Before Chang Haonan was reborn, this kind of light passenger car had few users except for centralized procurement and use as a special vehicle chassis. However, from the 1990s to 2010, Iveco was a popular model all over the country. ?As expected, the person leading the team was Guo Lin, who had met Chang Haonan and the others. Guo Gong moved very quickly. I thought I would have to wait for a few days. The three of them shook hands and got into the car. Xu Yang sat in the same double row seat as Chang Haonan very naturally. As soon as the people in the office heard that we were going to invite you two, they approved the note without saying a word, for fear that something would be delayed. ?Guo Lin motioned to the driver in front to drive: Should we take a break first or what should we say? ?Chang Haonan turned his head and looked at Xu Yang beside him, who just shrugged to show that he didn''t care. After you put your luggage away, lets take a look at the pod first. Researcher Xu and I wanted to see what this high-end American gadget looks like along the way. "no problem." ? ? 14th Institute of Electrical Engineering is only about 20 kilometers away from Dajiaochang Airport. In the 1990s, there were basically no traffic jams, and it only took about half an hour to reach the destination. After getting off the car, the two entered a building under the leadership of Guo Lin, and then turned around several times before finally seeing the captured pod and 14 more in a place that should be the basement. of other staff. ?The workplace is not a place for small talk, so after just a brief exchange of greetings, Chang Haonan and Xu Yang put on anti-static lab coats and had close contact with their research subjects for the first time. In the past few days, we have basically completed the splicing work of these fragments. Although the function is definitely no longer restored, at least the overall appearance should not be much different from before it was broken. ??Guo Lin followed behind the two and introduced. The moment he saw the pod, Chang Haonan was basically sure that his previous guess was correct. Leaving aside the synthetic aperture radar antenna in the middle, this is an electronic jamming device based on digital radio frequency memory (DRFM) technology. Xu Yang next to him also found the key point almost at the same time: There is no traveling wave tube or CNC phase shifter in this. If you are sure that you didnt miss it during the search, then this thing should use a relatively new all-digital design. It is no different from Chang Haonans judgment. The latter did not do it rashly, but asked the staff nearby to remove the fairings that partially blocked the view, revealing the true appearance. But...the design of this pod is so bloated. ?Xu Yang frowned slightly when he saw the whole interior, and seemed a little puzzled. When we were searching in the mountainous area, we also felt it was very strange, but we can be sure that at least no large pieces were missing. This thing should have been designed to look like this. ??Guo Lin explained from the side. Chang Haonan, who was circling the pod wreckage, was also surprised. Having lived through the Internet age, he has seen pictures of the insides of the AN/APS-154 Synthetic Aperture Radar (SAR) pod and the AN/ALQ-99 electronic jamming pod. Although the lower half is basically empty, the equipment is filling up. There is still a level of about 60%. But the thing in front of me is at least 10 meters long, and only the front and rear ends and the middle section are equipped with equipment, and the rest are empty shells Possibly due to power supply or weight constraints, the SAR antenna inside the pod is only about 4 meters long, which does not fully utilize the space. Logically speaking, this kind of tactical equipment should be as compact as possible. Anyway, lets use an optical amplification device to check the circuit design first. I see that the memory has been smashed, so there should be no possibility of restoring the program code. ?Chang Haonan decided to put aside his doubts for the time being and start from a more reliable place. ??When he first entered this laboratory, he was worried that any special equipment would be needed, but the circuit boards that were the core of the interference part were not large in size and only required an ordinary optical microscope. High-end scientific research often requires only the simplest tools. Phase accumulator, waveform memory, low-pass filter, reference clock Even though Chang Haonan has never seen these component models from the 1990s, it is still not difficult to judge their functions through some appearance features and vague inscriptions on the surface: Yes, this board is a direct digital frequency synthesizer. "Under the control of the reference clock, the phase accumulator linearly accumulates the frequency control word K, and the obtained phase code (n) addresses the waveform memory (ROM) so that it outputs the corresponding amplitude code, which is passed through DAC and low-pass filtering Then the corresponding analog signal can be output. ?Chang Haonan looked up from the binocular microscope and found Guo Lin and his colleagues next to him looking at him with incredible eyes. "What''s wrong?" This...can...be seen directly? ??Guo Lin looked at Chang Haonan, who looked as if he was just eating and drinking, and then at the huge pod that had just been put together next to him. He suddenly felt that his previous work seemed a bit in vain... (End of this chapter) Chapter 245 Radar jamming technology based on digital radio frequency Chapter 245 Radar jamming technology based on digital radio frequency ?The faces of the other people standing behind Guo Lin were also very exciting. Intuitively, they dont quite believe that someone can directly judge the design principle of the circuit in such a short time. Mainly because its too fast. ?Those who can enter the 14th Institute of Electrical Engineering are somewhat capable in circuit design. ??But when you really get a circuit board that has never been touched, is inherently damaged, and has a lot of new components, it will still take a few days to analyze it no matter what. ??If you are facing this kind of military circuit board with many non-standard parts and electromagnetic shielding packages, you may have to collect some materials specifically. After all, in this era, the transmission of information is really not smooth. As for Chang Haonan''s performance, their first impression was that... Looking at a circuit board that is already very familiar to me. In this way, many intermediate processes can be omitted, and judgments can be made directly as long as some typical characteristics are found. But how is this possible? ?This pod was probably secretly produced by Raytheon Company. From the time it was captured to the time it was secretly transported back to Jinling, the number of people with knowledge of it was also controlled within a very limited range. Chang Haonan, who just arrived at Institute 14 today, has never had the chance to see the real thing even though he had heard a few words from Guo Lin before. But on the other hand, the person who said this was Chang Haonan after all. ??And Xu Yang next to him did not express any objection. If someone else made such a judgment, it would definitely be considered as lying. But the situation of these two people is different. Although algorithm theory, software programs and circuit hardware can be regarded as three different fields, they are all under the category of control engineering after all. After all, he wrote a paper that was on the cover of IEEETransactionsonAutomaticControl. In short, its quite confusing. It should be said that these peoples guess was not wrong. Chang Haonan was able to use a microscope to see the working principle of the jamming device, naturally not because he had the Sharingan, but because he had already made a guess before, and now he was just verifying it. Or to be more precise, it is just to add some rationality to one''s own judgment. Otherwise, if you just tell the result directly at a glance, I am afraid it will be difficult for others to believe it. In fact, he has taken advantage of the times. In later generations, this kind of DDS can be integrated into an integrated circuit with a side length of no more than two centimeters, instead of a palm-sized circuit board like the one in front of us, which is definitely not something that can be seen with an ordinary optical microscope. ?Of course, it seems that it is still a bit beyond Guo Lins ability to accept. But it doesnt matter, it can be explained. ? He ??just described it in words, which was indeed not intuitive enough. Moreover, everyone else was not mentally prepared. I am afraid they did not hear the whole story. It is normal to be dubious. Actually, although this board looks very complicated, the core principle is not difficult to understand. You are just scared by the origin and packaging specifications of this thing. Chang Haonan took the circuit board off the microscope stage and gently put it back in place: Is there a blackboard? I can draw a picture of the principle and it will be easy to understand. Guo Lin is the one who believes in Chang Haonan the most among the people except Xu Yang. He just listened to the judgment given by the latter completely, but because he spoke too fast, he still didn''t fully understand it. Now he naturally wants to catch him. Live this opportunity. Something is available, its right next door. ??More than a dozen people came to a small conference room nearby. Only Xu Yang did not follow him immediately. After explaining it in a low voice to Chang Haonan, she picked up a few other circuit board fragments and observed them alone.??? ? Sometimes Chang Haonan wonders whether the blackboards used by enterprises affiliated to the Science and Technology Commission system are purchased centrally. In short, this room, this blackboard and this chalk made him dream back to House 601. Although this direct digital frequency synthesis sounds like a scary new concept, we should all be able to understand the workflow. Chang Haonan said and drew a simple schematic block diagram on the blackboard: This is what it looked like after I deleted all the non-core components on that circuit board. ??He didn''t even need to repeat his previous explanation, and the engineers from the 14 institutes surrounding the blackboard showed a look of understanding. This is the role of peeling off the cocoon. ?Just like some math problems, you can''t find the idea at all when you do it for the first time, but after reading the answer or listening to the teacher explain it once, you will find it very simple. So the function of this thing is to perform carrier frequency shifting with higher efficiency? Soon someone figured out some important links. Thats right, the DDS (Direct Digital Synthesizer) itself is just part of a Field Programmable Gate Array (FPGA). Perhaps taking into account electromagnetic compatibility and stability issues, this FPGA was designed to be very large, and even three layers of circuit boards were stacked to achieve all functions. Chang Haonan picked up the chalk again, added a dotted box around the picture he had just drawn, and wrote the three letters DDS inside. Then he drew several other components on the blackboard and connected them into a larger area. circuit. "I see!" ?Guo Lin, who was standing closest to the blackboard, was particularly excited: "The input radar radio frequency signal is mixed with the system local oscillator, and down-converted to an intermediate frequency signal through band-pass filtering (BPF); after the intermediate-frequency analog signal is mixed with the precise local oscillator and low-pass filtered (LPF), a baseband analog signal is obtained; ADC Under the control of the sampling clock, analog-to-digital conversion is implemented, and the output digital signal is stored in RAM; during the forwarding process, the read data is reconstructed into a baseband analog signal after being filtered by DAC and low-pass filtering; this reconstructed signal is consistent with the system local oscillator After mixing, the frequency is upconverted into a radio frequency interference signal..." At the beginning, Guo Lins analysis was very smooth, but later on, he realized that something was wrong: It feels like...it feels like theres a module thats not being used? Chang Haonan nodded: "Well... this should be a transformation module used for orthogonal down-conversion processing, used to convert one intermediate frequency signal into two orthogonal components. As for the specific algorithm and the ultimate purpose of doing so, we still have to wait until Dr. Xu I can analyze it while analyzing it, but if I have to guess, it may be to increase the bandwidth at a low sampling rate to ensure the interference effect on low-frequency radar..." As soon as he finished speaking, Xu Yang, wearing a lab coat and without even taking off his goggles, pushed the door in from the outside and came to Chang Haonan: This should be an orthogonal dual-channel DRFM that can process two orthogonal components at the same time. Under the condition of the same sampling rate, the bandwidth can be doubled..." As soon as she finished speaking, she found that everyone in the room was looking at her with strange eyes. Or, to be more precise, he looked at the small blackboard behind him. ?So Xu Yang turned around subconsciously: Hey, so youve seen it too? Thats not true. ?Chang Haonan waved his hand and put the chalk on the table next to him: I reasoned it out. ??The understatement made the whole room quiet for a moment. "All right." A few seconds later, Xu Yang nodded with a complicated attitude: No matter what, theres one thing I still cant understand. According to this schematic diagram, there is no need to design the pod to be so bulky. It can be about 6 meters in length, so that some ordinary tactical aircraft can also be mounted normally. (End of this chapter) Chapter 246 Can it interfere with GPS? Chapter 246 Can GPS be interfered with? ??Concerning Xu Yang''s question, Chang Haonan couldn''t figure out the mystery for a while. The L005S electronic jamming device, which has a similar principle to this thing, is quite compact and can even be hung on the wingtips of the Su-27. The United States'' level in the field of integrated circuits is obviously much higher than that of its big brother in the north. It seems that there is no need to create such a little bit. Silly, big, black and thick design. But for this kind of problem involving engineering practice, there is absolutely no future by relying on brainstorming alone. It is still necessary to build a prototype for experimentation. And despite the fact that it took Chang Haonan and Xu Yang half an hour to analyze the hardware structure, in fact, even if 14 Research Institute only relied on itself, it would only take a few more weeks to complete. ??To truly replicate the electromagnetic interference function of this pod, a series of issues such as software design and functional debugging need to be solved. Fortunately, with such a reference, the process from circuit principle to circuit design should be easy to follow. So next ?Guo Lin subconsciously turned his head and looked at Chang Haonan beside him. Next, we will first test the parts of the wreckage that are not completely damaged, and then design something with the same function based on our analysis to see if we can fully restore the effect of the American pod... ?Chang Haonan arranged the next tasks in an orderly manner. ?After his management ability increased to lv2, he has gradually become accustomed to leading a team of 10-20 people, so he seems quite comfortable at this time: Because we can no longer analyze and decode the software part of this device, we can only design the FPGA algorithm ourselves. Fortunately, Researcher Xu should be very good at this aspect. Xu Yang, who had been suppressed by Chang Haonan for a whole day, finally found what he was good at and readily agreed: "No problem. Digital signal processing should mainly involve distributed algorithms (DA). In addition, if the performance of our components, especially DPRAM, is not enough, I can also assign a DA implementation structure to multiple independent N In the lookup table of parallel DA, the table size is reduced and some hardware resources are saved. " It would be great if it could be like this. Chang Haonan might be a little more worried if others took over everything, but Xu Yangs foundation in algorithm theory is still credible. The efficiency of the two thighs far exceeded Guo Lins previous expectations. He could hardly wait to start researching the next step of the plan, so he rubbed his hands excitedly: Then lets start work after dinner? Theres no need to be so anxious ?Chang Haonan looked at Guo Lin, who looked full of fighting spirit, and said with a smile: Just follow the usual pace. We are not rushing to meet any deadlines. It is important to maintain long-term and efficient work. Oh, thats right ?Guo Lin scratched his head: Besides, you two have just arrived, and we havent caught the wind yet, so we let you start work. A burst of laughter erupted in the not-so-large conference room. In short, after confirming the next schedule, everyone changed into casual clothes and prepared to go upstairs for dinner. Chang Gong, Researcher Xu, although Beijing roast duck is very famous, the way we eat this duck in Jinling is also unique. You must try it. As he was about to walk out of the door of the building, Guo Lin, who was in a good mood, said to the two people following him. ?Chang Haonan is already used to being regarded as a native of the capital. As for Xu Yang... Judging from her accent, she should really be a native of the capital. "good." When facing most people, the latters communication method still emphasizes conciseness and conciseness. Chang Haonan, who was standing next to him, did not answer, but looked back blankly at the building behind him. Speaking of which, your R&D building actually has two underground floors? Even though Guo Lin didnt know why Chang Haonan suddenly asked this, he still answered truthfully: "That''s right, but the ventilation in the underground part is not very good, and it is rarely used. It is for this reason that the institute decided to put this pod there to prevent it from being hit by people who don''t know the inside story." ?Theoretically, everyone who can enter the building should have a sufficient confidentiality level, but in this kind of thing, it is always right to be careful. To everyone else in the know, this was an ordinary arrangement. But it was different in Chang Haonan''s mind. Place a high-tech gadget captured from the Americans in the basement. There were so many factors involved in this matter that it was difficult for him not to think of a rumor that had been widely circulated in his previous life. A rumor related to the Balkans and F117. Although judging from the later decrypted content, this statement is probably completely fabricated, but the incident that occurred near the turn of the century can definitely be regarded as one of the eternal regrets of the vast number of Chinese people in the previous life. Speaking of which, have you, the 14th Institute of Electronic Science and Technology of China, ever researched other interference devices before, such as...interfering with satellite navigation signals? After thinking for a moment, Chang Haonan finally found a less out-of-the-box question as an entry point. Our main direction is radar, so we will do more research on anti-interference. Guo Lin, who had no idea what was going on, just thought the other party was chatting casually and immediately shook his head: "That is to say, in fact, in our country, whether it is interference or anti-interference, we are mainly studying passive factors, such as environmental clutter. Before, active interference and anti-interference methods basically only had theoretical preliminary research. Now this is considered Real project implemented for the first time. Chang Gong thinks that the design idea of ??the jamming pod can also be used to interfere with satellite transmissions? Oh, thats not the case. Chang Haonan pretended to be nonchalant and replied: "Frequency shift interference is aimed at the coherent accumulation technology used in PD radar signal processing. It is not very useful for interfering with satellite navigation signals. At most, it can only be used to simulate the Doppler frequency shift characteristics of the received signal. It is not considered a core technology. "I was just thinking when I saw that pod, if our equipment, or key locations that need to be protected from satellite-guided weapon attacks, could be equipped with a similar portable jamming device, would it be possible to avoid repeating... uh, again? Are you going to make the same mistake as the Iraqi army in 1991? In this era, Chinese peoples understanding of modern warfare basically comes from the Gulf War, or strictly speaking, from various legends about the Gulf War. Although most of these legends have nothing to do with the reality, but in the At times like this, it''s quite useful to take it out to temporarily block the gun. Dr. Chang, if you are just going to interfere with GPS civilian receivers, there is actually no technical difficulty, because the signal characteristics are all public. You only need to simulate a navigation signal with the same characteristics but stronger power. ??This time it was Xu Yang who spoke: But the source code of military GPS is kept confidential, and more and more accurate signal recognition technologies will be used. Im afraid we need more sophisticated control theories and algorithms. Obviously, this is not a direction that can see immediate results. But fortunately, Chang Haonan still has time. About a little more than two years. Of course I know this, but after the current radar jamming pod project comes to an end, GPS jamming can be considered as a future research direction. (End of this chapter) Chapter 247 Components stuck in neck? Not a problem! Chapter 247: Components stuck? Not a problem! ?At about the same time, across the ocean in Arlington County, Virginia. ??The new Defense Secretary William Cohen, who has gradually straightened out his work, received another piece of news related to the previously shot down MiG-25. Bad news. ?This time, the intelligence came from the Defense Intelligence Agency (DIA). ?About twenty minutes ago, DIA Director Lieutenant General Therese Henrion knocked on the door of the Defense Ministers office in a hurry, and then handed a document with an encryption stamp to the latter. What Cohen had been most worried about had finally happened. Based on reliable intelligence, the Chinese side found the wreckage of the downed MiG-25, and then seized the core part of it, the active and passive radar reconnaissance/jamming pod belonging to the CIA, and transported it back to the country. "About a month ago, General Shalikashvili assured me that considering the speed at which it was shot down, this plane, as well as all the equipment and pilots on it, would be shattered into pieces, and it would be impossible to search and search them completely. recovery." Mr. Minister of Defense felt that his temples were pounding, and he took several deep breaths before calming down a little - ?In the past few months since he took office, he has not only been wiping the **** of his predecessor, but also of his colleagues. Almost every day he has encountered all kinds of things that make people''s blood pressure rise. But this time the limit was exceeded. ??Although Cohen had previously successfully put all the blame on the CIA for its incompetence through a subtle blame-shifting operation, if the relevant technology is really leaked, it will ultimately be the military that will suffer the most. No one wants to face an enemy that cannot be locked on during a dogfight. ??And once a situation arises in which he is unable to deal with the enemy, it is he who will be scolded and questioned in the end. ?This is why CIA acting director George Tenet is also sitting in Cohen''s office at this time. "Regarding this point, our analysis result is that considering that it is impossible for the Chinese side to overcome our radar jamming equipment, the final downing of the MiG-25 may have been a very close and long-lasting visual range battle. The final attack is accomplished by cannon or infrared-guided missiles. ??In this era when things are not yet correct enough to cause chaos, Henrion can become the first female director in the history of DIA and work steadily for three years, and her professional skills are naturally unparalleled. She has already prepared answers to the questions these ministers may ask: So the Indian MiG-25 pilot had enough time to reduce its flying altitude and speed. When it was finally shot down, the aircraft was probably not in the high-altitude, high-speed state as previously speculated by General Shalikashvili. Henrion, who was born in the navy, is not specialized in this air force knowledge, but she still asked experts in the field to give her several lessons before coming here, which was enough for her to deal with the more layman civilian defense minister. "All right" Even though he had the urge to blow the head off the Tenet dog in front of him, Cohen still endured it. Now that things have happened, all he can do now is try to stop the loss: "Is there any way to save it, such as asking our insiders to find a way to steal the pod wreckage?" ?This question almost caused the blood pressure of the two intelligence chiefs on the opposite side to explode: "First of all, Mr. Minister, our informant is not omnipotent. He can only confirm that the pod wreckage has entered China, but he does not know where it is currently stored." Henrion explained to his whimsical boss with a helpless face: Secondly, that pod She looked at Tenet, who was called over by Cohen and didn''t speak for a long time because of some reasons. The latter also followed the trend and said: That pod is nearly 10 meters long and weighs almost a ton. Even if it has been smashed, it would be difficult for one person to steal it out. ?In fact, Cohen realized that the idea was a bit outrageous just now, but now he is the one who has the sense, so his momentum is not weak at all: Okay, lets assume that the Chinese have obtained a relatively complete pod, and then they should copy a similar model? Well...we at the CIA are willing to provide some remedial measures. Tenet also knows that the trouble his department has poked is a bit big. If the defense chief in front of him really insists on this matter and refuses to let go, then he may never be able to get rid of his nickname as acting director, so his attitude is quite good. : "The CIA can provide the jamming signal pattern of that jammer and pay you for targeted upgrades. In this way, even if the Chinese imitate an identical thing, it can ensure that our radar will be almost unaffected." "It sounds good, but what if the Chinese change the pattern of the interference signal?" Because of his past work experience, Cohen is very good at bargaining in negotiations. He pointed out the problem with Tenet''s method almost to the point. "In that case, the DRFM circuit on the jammer needs to be reconstructed. According to the judgment of our radio experts, the Chinese people should not have this capability within a few years. Their semiconductor and information industries have been in decline for about 10 years. They were destroyed by their own people before and have not recovered yet. Of course, Tenet cannot let Cohen continue to open his mouth. He has made a lot of concessions this time: In fact, it is almost impossible for the Chinese to copy it exactly. There are some semiconductor devices in that pod that only Texas Instruments can produce, and their export is completely prohibited. The Chinese have no way to find substitutes. Having said all that, Cohen also knew that he was unlikely to take advantage of anything more. ??However, being able to get funds from the always stingy CIA to give the navy and air force aircraft a small upgrade is a good thing worth having two more drinks when he goes home at night. "Okay, but our military still needs to think more long-term. Upgrading radars must still be done, and the funds must come from your CIA. Everyone knows that you have your own small treasury and can bypass Congress. " "make a deal." Although he felt that the other party''s request was still a bit outrageous, Tenet had no other choice at this time. After all, his control was still in the hands of others. Fortunately, the CIA''s funding sources are extremely complex, and even the IRS cannot fully trace them. It is not impossible to extract hundreds of millions from them. In fact, Tenets confidence is not without reason. ?In about a week that followed, Chang Haonan and Xu Yang led engineers from the 14th Institute to complete the entire analysis of the electronic warfare part of the captured pod. According to the plan, the next step should be to build a prototype and test the effect. However, the progress is stuck at this step. "Other parts are easy to say. Most of the components can be found in the civilian market. We only need to repackage them according to military regulations. The remaining ones can also be replaced with Russian or domestic products with poor performance. It will not cause any problems. Fatal impact. Xu Yang held the completed circuit design diagram in his hand and said to Chang Haonan in an extremely annoyed tone: "However, as we analyzed on the first day, this pod uses quadrature dual-channel amplitude quantization DRFM, and its core part is an analog-to-digital converter (ADC) with an extremely high sampling rate. I briefly checked , found that only Texas Instruments can produce it in the world, and there is no record of exporting it to the outside world. " "If we don''t use this high-speed ADC, the response speed of the entire pod to radar waves will become very slow, and even bugs will directly occur and must be restarted. Considering that it often takes less than a minute for anti-air missiles to lock to launch and hit. , this is absolutely unacceptable. Obviously, this feeling of having gone through all the previous processes but being unable to take the last step due to hardware reasons is not a good feeling. Can you consider not using orthogonal dual channels? Guo Lin next to him wanted to settle for the next best thing. In that case, the effect on broadband radar signals will be very bad, and it will have almost only laboratory value. ?Xu Yangs answer is equivalent to a death sentence for this idea. How could they spend so much effort just to create a technical verification device? Actually, it is not necessary to use a single high-frequency ADC. Chang Haonan gradually formed an idea in his mind, and after systematic verification, he found that it was feasible. Do you have any idea? Xu Yang raised his head and his tone became excited again. At least worth a try. Chang Haonan said as he pulled a piece of paper from the side and spread it on the table in front of him. (End of this chapter) Chapter 248 Frequency division multi-channel to avoid high-specification components Chapter 248: Frequency Division Multi-channel, Avoiding High-Specification Components When everyone else saw this, they also gathered around the table. If the dual-channel signal adopts an orthogonal design, it can essentially double the instantaneous bandwidth. Although DRFM has reduced the performance requirements for ADC and RAM compared to single-channel DRFM, it is still not enough. thorough." But we can consider giving up the idea of ??phase-divided sampling or time-divided sampling, and design multiple narrow-band DRFM subsystems, split according to frequency bands, and mix each channel with a voltage-controlled oscillator (VCO) to output a baseband analog signal. Processed by a narrowband DRFM subsystem, the bandwidth requirements for DRFM can be almost completely avoided, and the sampling frequency can be reduced to a fraction of the original. ?At this time, the pencil in Chang Haonan''s hand seemed to Guo Lin like a magic wand. The intersection between the tip of the pen and the paper continued to produce miracles as the former drew pictures. ??This time the circuit principle is more complicated, so Chang Haonan spent a while drawing it before finally completing it. This design is indeed feasible in theory, but if so much hardware is added to the project, each new part will bring system errors, and the superimposed noise floor and signal distortion must be very serious. Compared to Guo Lin who was still analyzing the schematic diagram, Xu Yang had already begun to think about the feasibility of this idea: "Among other things, the inconsistency between these channels requires phase level compensation. For dual-channel systems, you can also consider sharing a reference clock to achieve inter-channel coherence. This avoids the need for high-standard ADCs. and RAM, but as the number of channels increases, the requirements for the reference clock will increase, and we still cant build this thing. "The multi-channel technology that uses a reference clock that you are talking about is generally used on oscilloscopes. The DRFM architecture of the jammer is much more complex than that of the oscilloscope. Not to mention us, the Americans probably will not be able to take this route by relying solely on clock performance. " The reason why this idea is considered feasible by the system is naturally because Chang Haonan has already considered this issue. So what we have to do next is to compensate for various error factors respectively. For example, a combination of calibration and compensation can be used to correct the distortion of the sampled data at the baseband, and suppress the amplitude-frequency characteristics and group delay characteristic errors in each channel, thereby ensuring that the reconstructed signal is close to the original signal. What about the phase difference problem? There are not many tricks to the phase difference, but it can be measured, or very accurately estimated, so that corrections can be made in advance. Chang Haonan explained as he wrote amidst the astonished eyes of those around him: "Suppose we send a broadband pulse signal with a **** of k through the digital-to-analog converter. The signal reaches the RF input end through the feedback branch. After going through the combiner, band-pass filtering, down-conversion, and low-pass filtering, it is collected by the DAC The signal processor performs STRETCH deskew processing on the original transmitted signal. Due to the delay difference between the two signals, a single frequency output f will be obtained. This frequency can basically represent the delay amount in the input-input process. t=f/k. Just...that simple? An engineer next to him was surprised to find that he could understand. He originally thought that he would be faced with a set of theories that were like a heavenly book, and then he would need to go back and study for a few days to understand it. Im just going to talk about the principle now. Its definitely simple, but later we need to consider the compensation algorithm in detail, and the workload is still quite big. Chang Haonan put down his pencil and shrugged. Guo Lin next to him was very discerning and handed over a cup of tea at the right temperature. Passing tea to the boss.jpg The regular worker takes a drink of water. Chang Haonan picked up the cup and drank it all in one gulp: "Of course, even under the most ideal conditions, it is impossible to completely eliminate the errors between multiple frequency bands. Especially for broadband cross-channel signals, the signal distortion generated at the intersection point of the frequency bands must exist in principle. , and the more they are stacked, the more they are, so we cannot make it unlimitedly with twenty or thirty channels, otherwise we may not even be able to pass the power-on self-test. "My current plan is to use the 350Mhz bandwidth DRFM that we can produce and can stably package, and get 10 parallel channels. In this way, even if the bandwidth loss at the frequency band junction is included, we can basically achieve a bandwidth coverage of about 2.5Ghz. " Thats not a lot The main business of Institute 14 is radar, so it is naturally sensitive enough to this kind of thing: As long as it can cover the frequency range of 6.5-9Ghz, it is enough to handle the C-band and X-band signals used by most air radars. Although the center point of the X-band is 10Ghz, considering the attenuation problem, in fact most radars will not use too high a frequency. 9Ghz is enough, and in the field of communications, the lower edge of the X-band will extend to 7Ghz. Nearby, the 6.5-9Ghz option can also provide precise directional interference to certain specific satellite communications. If the reconstructed signal compensation algorithm is done well enough, there should be potential in this area. Xu Yang can still keep up with Chang Haonan''s thinking in his own field of expertise. "The biggest problem now is that the size and weight of the equipment will be larger than the dual-channel orthogonal design, and it is also difficult to control the heat and power consumption. It is difficult to make a self-defense pod like L005 that does not occupy heavy-load mounting points. No need to think about it, fortunately, the performance of our thing is much better than the L005. If there are two of them on an aircraft in a formation, it can basically cover the entire fleet. " Chang Haonan casually drew a flat and long pod on the paper, and then drew a small fan-like thing on the head: However, we are still using it on airplanes anyway. Adding an impact generator on the head can solve some of the power supply problems. As for heat dissipation, it can also be solved by introducing low-temperature air conditioning into the air. As he spoke, he drew an outline similar to an airplane on the paper, but his drawing skills were so average that it was hard to tell whether it was a J-8C or a J-H-7. "In this case, do we have our own EA6B or EF111?" Looking at the concept map on the paper, an engineer standing behind Guo Lin suddenly said, his tone full of joy. It can be said that since the Gulf War a few years ago, for radar researchers like them, the two above-mentioned special electronic warfare aircraft have become the big devils that they think about day and night and hope to defeat. ??Although they still haven''t completely figured out how to defeat the enemy, now... Can you think of him as having created his own Great Demon King? Hmm Speaking of our pod alone, forwarding frequency shift interference is currently the mainstream technology route, and it is not bad in terms of functionality. Chang Haonan looked at the outline drawing on the draft paper in front of him and replied: But if you really want a dedicated electronic warfare aircraft, you will need to make major changes to the aircraft platform itself. It is almost useless to just hang two pods on an ordinary fighter aircraft. However, on the bright side, our imaginary enemy does not pay much attention to the construction of air defense systems due to its confidence in its air force, so the intensity of air defense suppression operations faced by our army is not as high as that of EA6B. In fact, having two such pods mounted on the J-8C or J-H-7 is closer to the effect of the F16CJ Wild Weasel in the US military. ?Of course, even this is enough to keep No. 14 Institute happy for a long time. Even though he has been reborn for nearly a year, Chang Haonan is still subconsciously accustomed to directly comparing the things he creates with powerful enemies on the other side of the ocean. But for most people such as Guo Lin, this is something they dare not even think about no matter how optimistic they are. Being able to achieve "the enemy is strong and we have it" instead of "the enemy has it and we have nothing" is already a dream that many people hope to realize throughout their lives. But there are not exceptions. As a person of this era, Xu Yangs thinking is much broader: Its a pity that the flexibility of this set of tools to process broadband signals is average. It can only allocate resources equally to each channel, and there is no way to flexibly allocate frequencies to a specific narrowband frequency band based on the characteristics of the detected radar signal Chang Hao Nanxin, who was standing next to him, said that you dare to think about it. This is a function that was only implemented in the later third-generation electronic jammers such as EA6B and EF18G. ?However, he did not want to make the comrades of the 14th Institute think that the role of more advanced components could be replaced by structural upgrades alone because of his operation, so he followed the trend and continued: "No way, this is determined by the level of hardware manufacturing. The difficulty of creating a batch of 100% consistent components is no lower than building a high-resolution and high-sampling rate ADC, so in order to compensate for the distortion, some functionality must be paid. At the end of the day, we still have to find a way to re-develop our own semiconductor industry. Just relying on speculation will definitely hit the ceiling in advance. " Everyone who heard this sentence looked at each other. This is not a problem that their Department of Electrical Engineering 14 can solve. It doesnt matter, this kind of thing doesnt happen overnight. ?Chang Haonan also understands that things must be done step by step. Just like the previous layout of the civil aviation industry, if you want to influence this large-scale industry, the core is to find a starting point. If you just say directly that I want to engage in the XX industry, there will definitely be no future. Lets not think about things that far away. Since the principle works, we should be able to get an engineering prototype for testing in the next step? It can be seen that Guo Lin is already hungry for the thing drawn by Chang Haonan - When he first realized that high-standard components must be used and China was embargoed and could not import them, he thought that the project he had high hopes for was going to fail. Now it is possible to use domestic components with relatively backward technical indicators to achieve the system indicators of high-end products. It was definitely an unexpected surprise. Engineering prototypes must be made, and two must be made at the same time. Chang Haonan glanced at the fragmented remains of the pod on the long table not far away: Lets make a compact version according to our own design, and then reproduce an American oversized pod in its original size. I want to see whats wrong with it (End of this chapter) Chapter 249 Americans always like to compromise Chapter 249 Americans always like to compromise ?? Just as Jinling Electrical Engineering Institute 14 has thought of ways to overcome the insufficient performance of available components and started trial production of engineering prototypes, the China-EU multi-field negotiations that have been going on for more than half a month have finally come to an end. After all, the tone has been set, and the entire negotiation process has been smooth for both parties. The results of the negotiations that Chang Haonan led before leaving have even begun to show their influence After suffering a setback in Ho-kyung, Ms. Anne Valette, the EU representative sent by the Joint Aviation Authority (JAA), did not even wait for the end of the negotiations before choosing to return to Brussels with Colombo, and then quickly Taking over the negotiations between JAA and FAA. ?Facing China, I am submissive, facing the United States, I strike hard. In fact, the European side has been quite passive in previous confrontations. The previous head of delegation was also sent by JAA, but this person specialized in business negotiations and had almost no understanding of aviation technology. In addition, the other party occupied In order to maintain the moral high ground of aviation safety, they once chose to resort to procrastination, hoping to wait until the heat of the crash had passed before bargaining with the FAA. ??However, the Americans are not just for nothing. After discovering this, they quickly started their propaganda machine. For a while, major North American media and even some European media influenced by Wall Street capital began to publicize this matter overwhelmingly. During this period, Europe also tried to launch a counterattack in the media field. The BBC and France 2 urgently produced a documentary to report on the Valuje Airways Flight 592 accident that occurred last year and shocked the United States. ?The original intention of this behavior is to show the audience that "your FAA is not a good bird when it comes to aviation safety. The air crashes caused by neglect of management are much more serious than our JAA." However, the operation was so fierce that although it did have a certain effect in the first few weeks, the situation soon turned into shooting itself in the foot. Because as early as last year, that is, in August 1996, three months after the crash of Valuje Airways No. 592, the then FAA Administrator David Hinson, who was born in the Elephant Party, had already resigned. The acting director who succeeded him, Jane Garvey, was a donkey party member. ??And the latter was unable to obtain a formal appointment at this time due to the obstruction of the Xiang Party. As both a public enemy and a private enemy, Garvey was clearly happy to step on his predecessor''s heels. As expected, she quickly stood up and said that it was precisely because of the painful lessons brought by that accident that the FAA learned a lesson and began to pay more attention to civil aviation safety. The whole world should also take Valuje Air as a warning and put everything in place. The possibility of causing a safety incident is nipped in the bud. There is no mention of JAA in every sentence, but it is JAA in every sentence ??We sacrificed a director because of the plane crash, do you have to think about it too? Even worse things are yet to come. As the incident gradually unfolded, some TV stations began to say that Valuje Flight 592 proved that McDonnell Douglas''s passenger aircraft had design and safety hazards, and that Boeing''s merger with McDonnell Douglas was not to monopolize, but to allow aircraft design and manufacturing The former, whose quality is excellent, integrates the civil aviation industry throughout North America to improve the overall safety of the civil aviation industry. JAA was shocked from top to bottom by this extremely shameless argument. ?However, having lost the advantage of their right to speak, they can only watch as more and more people begin to recognize this statement. ?If this trend continues, in a month or two, opinions supporting the merger of Boeing and McDonnell Douglas will probably become mainstream in Europe. The European Union, which is almost desperate, even thought about cooperating with the troubled Russians. Unfortunately, the dry and cold Russian climate is very difficult to form supercooled clouds. Therefore, although the sky over Lake Baikal may be the coldest after the Great Lakes, Ice flight is a holy land, but they really don''t do much research in this area. In short, by the time Valette finished his negotiation mission with China and returned to Europe in mid-March, JAA was already overwhelmed by these matters and almost ran out of room for maneuver. So she can definitely be regarded as taking orders in danger this time. In fact, at the beginning, the negotiating delegation sent to China did not have high expectations. After all, even with the endorsements of Colombo and AgustaWestland, few Europeans would believe that China, which had never been able to build a serious passenger aircraft before, would surpass them in a segment that has received little attention, such as aircraft anti-icing and de-icing. Even ahead of Americans. Even Valette himself didnt believe it before he personally boarded the Ma-60 and flew into the extremely harsh supercooled clouds and witnessed the entire process from icing to safe de-icing. But now that she has returned to Europe, she is completely different. Perhaps inspired by Chang Haonan''s negotiation methods, the newly appointed Valette changed his past JAA delegation''s avoidance of the important and favored the light. He was directly at the negotiation site and under the lens of countless media, he took out a document on improving aircraft anti-icing safety standards in an all-round way. upgrade standards. After the accident at the beginning of the year, JAA teamed up with a number of authoritative scientific research institutions to urgently launch an in-depth research project on how aircraft can maintain flight safety in an SLD environment. This is a new standard based on research results, and we hope to implement this more advanced solution around the world, at least in Europe and North America. Subsequently, Valette opened the first page of the standard and showed the dense charts and figures under the camera. It seems that he is preparing to announce the contents on the spot. This time it is the turn of the FAA delegation on the opposite side. In fact, research on the impact of SLD environments on flight safety is still in its infancy, let alone how to ensure the flight safety of aircraft in SLD environments. The reason why we have been using this thing to exert pressure is that we have realized that Europes research level in this field is far inferior to our own, and we cannot figure out their true intentions. So although the FAA has been using the media, it has never actually announced the specific content of its requirements. It is to leave a room for compromise when the time comes. But in their eyes, Valette''s move was like holding a bag of explosives and preparing to die together. ??If it were really mandatory for all aircraft to pass the icing simulation test flight in the SLD environment, no matter whether Boeing or Airbus, it would take at least five to ten years, and they would definitely not be thinking about launching any new models. So, when it comes to this, it is the Americans who are the first to give in. ?They quickly changed the subject before Valette could speak, and quickly adjourned the meeting. (End of this chapter) Chapter 250 Improved JH-7 inspired by Chang Gong Chapter 250 An improved version of the JH-7 inspired by Chang Gong ?The dramatic changes in the negotiation situation caught everyone except those familiar with the matter by surprise. On the other side of the ocean, Director Garvey, who had been re-elected early due to the pressure of public opinion, found his immediate boss overnight. Rodney Slater, the newly appointed Secretary of Transportation only half a month ago, reported the situation to the latter. Has the delegation confirmed the contents of that standard? Slater, who has only been in his new position for half a month, is still in the process of getting familiar with the work and is obviously unprepared for it. The JAA declined to provide us with a complete version of the standard, but there is an outline containing all key elements. ?Garveys face looked a little haggard. After all, she was also picked up from the big bed in the mansion by her subordinates: "They increased the original level 3 climate conditions to level 4, requiring all civil aviation aircraft registered and operated in Europe to pass the newly established level 4 icing test. Our people have read the content of the level 4 standard. , the evaluation is that Europeans are completely crazy..." Higher than our current standards? Slater asked in disbelief. ?Garvey, who was sitting opposite him, nodded: Much higher. Taking the most intuitive supercooled droplet diameter as an example, the current test standard is greater than or equal to 40 microns, and the level 4 standard they set requires greater than or equal to 100 microns. Is it possible that they are also bluffing? "It''s unlikely. Although the outline is not complete, it also contains a lot of technical content such as feasibility analysis and risk assessment. After our engineers read it, they determined that at least they were not making it up out of thin air. It should be Really well researched. The atmosphere was deadlocked for a while. In the past few months, there should be no European models conducting ice tests in the Great Lakes region, right? After a few minutes, Slater asked again. No, the last European model that completed trials with us was the A340-313, which was completed early last year. ?Although he had only officially taken office not long ago, Garvey was already well aware of these matters. After answering this question, she almost immediately realized what the other party meant How do Europeans do research? We cannot rush this matter. It is best to find out the details of JAA first. The bottom line given by Boeing and McDonnell Douglas is that the merger operation must start before the end of this year. So we still have time. ??Although Slater is not familiar with the business of the Department of Transportation, his personal ability is still there, and he quickly provided a relatively stable solution. Subsequently, in order to reassure his subordinates, he revealed another secret to them: "In addition, Minister Kanter (Ministry of Commerce) also specifically told me about this matter before. He said that other arrangements have been made. If nothing else, China and Europe will form a temporary alliance to oppose mergers and acquisitions. , should be broken down, or at least weakened, by July this year. If it can be like this, that would be great. Garvey looked overjoyed when he heard the news: "The most troublesome thing at the moment is actually that Huaxia, which has huge market potential, and Airbus, which is developing rapidly, are mixed together. They need each other and have the same interests. This makes it very difficult for us. If we can separate them, the difficulty of defeating them will be different. It will be much smaller. ?The latest progress in the negotiations between JAA and FAA immediately became the headlines of major media. The news naturally spread back to China quickly. However, for the vast majority of Chinese people at this time, airplanes and civil aviation are too far away from them. After all, most people have never seen what an airplane looks like up close in their lives, let alone flying or building an airplane. . Hence, it has not attracted much attention in society. But for those who participated in the negotiations and development testing throughout February, this is definitely an event worth remembering. Hua Xia Aviation people, for the first time, relied on their own strength to have a direct impact on the development of the world''s aviation industry. We are no longer a dispensable force in the aviation industry, but will soon become one of the players eligible to enter and share the pie. As the work in Haojing gradually comes to an end, the negotiators and technicians who gathered in this central city last month are preparing to return to their jobs. But Yao Mengna found Du Yishan at this time. Teacher, I apply to stay in Institute 603 for a period of time. ?This request made the latter, who was already packing his things, stunned for a moment: Tell me what you think? "Here at the 603 Research Institute, there is an improvement plan for the JH-7 aircraft. The project has been completed. During this time, I have had some contact with Comrade Tang Changhong, the chief designer of the project, and I learned that their ideas for improving the aircraft are similar to what I did in 601 last year. The parts Im involved in are relatively close, so there should be room for me to play a role. Yao Mengna was obviously not impulsive, but had already done some research on the work she planned to complete. I know that the Air Force and the 603rd Research Institute want to develop an improved version of the JH-7. In fact, the project application has been pending with the head office for several years. ?Du Yishan stopped packing his things and sat on the chair next to him; "But as far as I know, this model uses a turbofan 9, which is a purely domestic Spey MK202 engine, and there is no substitute at all. And because the power has not been available, modifications to the aircraft itself have been delayed. " Lao Feibao was a model funded by the Navy. Later, the Air Force thought it had good performance and wanted to install it, but many indicators did not meet their requirements, so this improvement plan was created. ? Its just that at that time, even the Flying Leopard, which was already in service in the Naval Aviation Corps, could not find enough spare parts to maintain the engine. It was impossible to build a new aircraft, so it was shelved. ?Du Yishan is mainly worried that his students will be cheated. But Yao Mengna still insisted: "Teacher, you are right. This project has indeed been in a state of almost stagnation before. However, the Seiko project launched by Junior Brother Chang at the 410 Factory last year pushed forward the progress of Sibei''s localization. Later, we are also preparing to develop the turbofan 9 Some of the technologies of the Taihang project have been verified above, so Mr. Tang is optimistic that some improvement plans will be tested now. Is that so? In the past six months or so, Du Yishan has indeed not paid much attention to the situation of the JH-7: So, do you know what the next specific plan is for Xiao Tang and the others? He pointed to another chair next to him, indicating that he could sit down and speak slowly. "The 603 Institute and the 172 Factory are now relying on new processing technology to carry out mid-term upgrades for a large number of old JH-7s whose engines are in the first overhaul period. They took this opportunity to coordinate with the military to upgrade two relatively new aircraft from the South China Sea Fleet. airplane." Yao Mengna also took the opportunity to sit next to Du Yishan: "The changes currently planned include the introduction of a serrated design and slats on the leading edge of the wing to improve maneuverability in low-altitude flight, equipping the 1553 data bus to upgrade the past centralized fire control program to a bus-decentralized fire control, and upgrade The cockpit structure improves the pilots visibility and increases the aircrafts ability to receive fuel in the air. In this case, it is indeed the work you did in Shengjing... ?Du Yishan was obviously somewhat convinced. ?Seeing this situation, Yao Mengna quickly continued to add: More importantly, they are preparing to fully use digital design and manufacturing technology from scratch on this improved model for the first time, and they need manpower to help complete modeling, aerodynamic and structural analysis and other tasks. This sentence obviously worked. Digital model establishment is indeed Qis strength. After thinking for a moment, Du Yishan finally nodded: Then if you really want to participate, its not a bad idea to stay in Haojing for a while. ?However, he then continued: But Xiao Yao, there is one thing that I need to tell you. You said. If nothing else happens, Xiao Chang will receive a grand prize in two months. The topic was suddenly brought to Chang Haonan by Du Yishan: "I was planning to find a reason for you two to have a holiday together after he comes back from Jinling." ?Especially the second sentence at the end was already an explicit match between two people, which made Yao Mengna blush a little. "teacher" Du Yishan waved his hand and interrupted his student: "I will speak frankly on this matter." Everyone now, even if they only know a little bit about the inside story, knows that Xiao Changs future is limitless. Many units have already stopped pretending and started to openly rob people. So Yu Gong, I hope I can find a way to keep him in Beijing Airlines, and you should be the peer with the closest relationship with him, Yu privately ?He glanced at Yao Mengna next to him: You dare to say that you have no idea about Xiao Chang? I only learned about it in the past two days. This time I went to Jinling to do a project, but there was a senior researcher from the Chinese Academy of Sciences with him. She was very young and female. When it was time to talk, Yao Mengna, who was still a little shy, calmed down: I know her name is Xu Yang, from the Institute of Computing Technology. ?This answer was completely beyond Du Yishan''s expectation. Then you still... The old academician looked shocked. Teacher, it is precisely because of this that I chose to apply to stay in the 603 project. Yao Mengna looked at Du Yishan calmly: Even if Junior Brother has the idea of ????finding a partner, do you think that with Junior Brothers character, can I influence his choice by staying next to him? One sentence stopped Du Yishan. Although he had a harmonious relationship with his lover, like most people of that era, he actually got married first and then fell in love. As a person born in the 1920s, he must admit that he does not understand much about emotions. Love is not about two people staring at each other, but looking in the same direction. ??When the word love was mentioned, Yao Mengna''s eyes were still a little dodgeful, but her tone was very firm: Teacher, although this is difficult, I have to look in the same direction as him. (End of this chapter) Chapter 251 technology for technology Chapter 251: Technology for technology Like almost everyone in China, Chang Haonan learned through TV news that the negotiations between JAA and FAA had reached a deadlock while taking a rest after eating. Under the previous working conditions, everyone definitely didnt have much time to watch TV, but after the two pods were transferred to the manufacturing process, they also had a less busy life. For this incident, the 7pm news on this day was specially extended by 5 minutes. ? Judging from the situation mentioned in the report, Americans who had always had an aggressive attitude and wanted to make the investigation results public as quickly as possible and revise aviation safety standards based on the cause of the accident suddenly began to think twice. ??For him, who participated in almost the entire negotiation process, he could naturally tell at a glance that this was because JAA, who had received the confidence buff, caught the opponent off guard. But for the other people in School 14, there is nothing fishy about it. ?However, immediately after this seemingly unremarkable news, there was a piece of news that could be called explosive. A package agreement on technical cooperation in the aviation field has been reached between China and the EU. ??This is not the simple "cooperation" in which China paid for foreign countries to help with research and development, as before, but a true "cooperation" in which each takes what he needs. ?Due to time constraints, it is of course impossible for the report to mention the entire content of the agreement between the two parties, but it includes the two most critical parts. That is to say, the two parties will jointly establish an aviation meteorological research center to enhance the safety of aircraft in harsh weather conditions, and Airbus will build its planned "Asian Final Assembly Center" in China. The project location has nothing to do with aviation manufacturing. The construction of the factory buildings and supporting facilities were all completed by Huaxia. Construction of the final assembly center will start before December 31, 1999 at the latest. After completion, it will be jointly managed by China Aviation Industry Corporation and Airbus. It is expected to reduce the cost of passenger aircraft products sold to East and Southeast Asia by approximately 6% to 8%. . The mutual recognition of regional aircraft airworthiness standards between CAAC and JAA did not appear in the news this time because the matter is of great importance and there are still some detailed technical issues being discussed. ?However, even the part that has been revealed so far, combined with the TV picture of Ding Gaoheng, representatives from JAA and Airbus gathered around and signed the contract happily, is shocking enough. ?At first glance, outsiders may think that this is similar to the situation of the McDonnell Douglas MD82 final assembly line established in Hufei more than ten years ago. ?However, as long as you are a little knowledgeable or a little sensitive, you will find several key points behind the news. ?For example, this time it is no longer the Civil Aviation Administration of China that comes forward to negotiate and sign agreements with the European side, but the Commission of Science, Technology and Industry for National Defense. In other words, the department responsible for planning and coordinating the development of the civil aviation industry in China has been officially switched. ??If there are more discerning people, they will realize that placing the Airbus Asian final assembly center in China, although it can reduce costs to a certain extent, will definitely benefit China more overall. The European side will definitely not be charitable. Any agreement that can be reached must have parts that are beneficial to both parties. Hence, the only possibility is that the previous item of cooperation in building an aviation meteorological research center is actually more beneficial to Europe. This is a great thing. In the past twenty years, including Chinas own people, whenever they mention industrial advantages, it is nothing more than two repeated points: huge market potential and a large number of labor forces. When it comes to cooperating with foreign countries, these two trump cards come back and forth. Basically, there is no bargaining power. We can only engage in market exchange for technology where the initiative is in the hands of others. Of course, it is foreseeable that if Airbus aircraft are assembled domestically, they will have a greater advantage than Boeing aircraft assembled in Seattle, thereby gaining more market share. However, this kind of share growth that is completely in line with market rules is fundamentally different from the content in past agreements. In the framework of market-for-technology, China must ensure that the sales volume and profits of foreign products do not fall below a certain target. ??If this requirement cannot be met, money must be spent directly from the government to make up for it. Pretty overbearing terms. But often you have to sign even if you dont sign. As a result, this time, the agreement reached by the two parties did not mention the market share part at all, and there was no mention of "market for technology" in the report. ?Every word or sentence in the 7pm news was not randomly determined. So, many people must have begun to wonder about the changes in the situation behind this.??????Speak up, Chang Gong. ?Guo Lin, who was also watching TV, asked Chang Haonan who was sitting next to him: Some time ago, several key members of our 14th institute suddenly received an order to go on a business trip to Haojing for a period of time. Is it related to this matter? ?Although Dianke Group is not a member of the aviation industry system, the relationship between the two is undoubtedly very close. The modification of the electronic equipment of the H-6AIT involved the participation of many electrical engineering engineers, probably the people Guo Lin mentioned. So be it. Chang Haonan nodded: "This is a once-in-a-lifetime opportunity. We currently estimate that we can lead the world in the field of aviation meteorological safety. However, the JAA happened to be very troubled by this issue, so this agreement can be signed like this." smoothly." ?? Today is no longer the era of secret diplomacy two hundred years ago. Things like negotiations need to be kept secret during the process. Now that the agreement has been signed, there is nothing that cannot be said as long as it does not involve specific technical details. This final assembly center...is located in Shanghai again? Guo Lin also has some knowledge about aviation matters. After Boeing announced its acquisition of McDonnell Douglas, it was obvious to the naked eye that the MD90 model had no development prospects, so it was logical to think that it was intended to be given to Hufei. The manufacturing plant needs to find a new home so that it won''t fall apart because it can''t find orders. "No, the specific location has not been decided yet, but in short, in order to prevent some people from deceiving the superiors and affecting the development of our own domestic aviation industry, we must choose a place where there has not been much aviation industry layout to build a new factory. " Chang Haonan learned during a meeting at Sanzuomen a few days ago that the site selection principle he told Ding Gaoheng had been finalized by higher-level leaders. Completely starting over? Thats a lot of work. Xu Yang sat across from the dining table and could only see the TV screen through a somewhat awkward posture. Fortunately, the news had ended, so she turned back: When I was in school at Berkeley, my mentor and I went to McDonnell Douglas factory in Long Beach. If we wanted to build a production base like that from scratch, I think it would be very difficult to do it in less than 5 to 10 years. Berkeley and Long Beach are both in California. As a PhD student in the field of control engineering, it is normal for Xu Yang to have the opportunity to visit. "There is no way. The lessons learned from the McDonnell Douglas project were too painful. At that time, some people thought that having this project was enough, so they threw away all the money they had saved in the past to build a new system that was in line with American standards. The result is now There are chicken feathers all over the place. Chang Haonan, who was playing with chopsticks in his hands, sighed and replied: "Shanghai Aircraft Corporation, as the currently designated independent industrial base for large aircraft, must not be tortured like that again. The equipment, workers, and management can''t stand it. Rather than bothering to compete with those ''own people'', we might as well simply This will completely eliminate their desire to guide foreign capital to occupy the magpie''s nest." There are actually such people? Unlike Chang Haonan and Guo Lin, who have been on the front line of the project for a long time, Xu Yang''s work experience can be called simple. After graduating from Berkeley, he returned to the Academy of Sciences. Before meeting Chang Haonan, he did mostly basic research, even the computer room door. They dont really need to publish it, so they naturally dont know much about the inside story of these industries. Where is this going Chang Haonan waved his hand: "But let''s not talk about it for now. In short, we didn''t plan to build a factory the size of Long Beach in one step this time. We first kept the aircraft assembly business in our hands. As long as Airbus has experienced our In terms of production efficiency and quality, more parts production will definitely be transferred later, and it will not be too late to slowly expand the scale by then. " After hearing this answer, Guo Lin on the side suddenly realized something incredible: Chang Gong, do you think our production efficiency can be higher than that in Europe? This matter had basically become a consensus before Chang Haonan was reborn. Did you know that Tesla Motors, which was once on the verge of bankruptcy, counterattacked after the completion of its super factory in Shanghai? There was a sharp contrast... ?But in 1997, few people dared to believe this kind of thing. After thinking for a moment, he gave a relatively conservative judgment: Its definitely not possible at the beginning, but you wont be able to say for sure in a few years. De-industrialization in Europe is now very strong. The impact of this kind of thing is almost irreversible and will be reflected very quickly..." What if the Europeans change their mind midway, just like McDonnell Douglas? After all, there are many dreams and long nights. The construction of this assembly center is not expected to start until three years..." ?Ever since hearing Chang Haonan talk about the concept of bottom-line thinking at the Sandaomen dinner, Xu Yang''s vigilance in this regard has almost increased exponentially, and it even feels a bit like cutting everything into black. Its unlikely. This time its different from McDonnell Douglas and Paragon Peace. Its not a market exchange for technology, nor is it simply spending money to buy technology. Chang Haonan has already considered this issue: "As Dr. Xu said, these two approaches are actually unreliable. If people don''t want to play with you, they won''t play with you. But now we are exchanging technology for technology, not unilaterally asking for others. Airbus wants to You have to think carefully before doing anything. The aviation meteorological research center is going to be built in China. If the agreement is really invalidated, all the investment will be in vain..." (End of this chapter) Chapter 252 When setting up early warning aircraft, we must be prepared for any dangers. Chapter 252: We must be prepared for early warning aircraft Technology for technology ?Guo Lin repeated the concept mentioned by Chang Haonan. In the past, this was certainly something that China would not even dare to think about. But now its done. And its actually a behemoth as famous as Airbus and Boeing. The conversation between the three people was held in the internal kitchen of No. 14. Anyone who can enter to eat here has a high level of confidentiality. In addition, the topic is something that has been broadcast on the news, so there is no special avoidance of other people. So, just as they were about to pack away the dishes and leave, two people who had been sitting in a corner not far away got up and walked over. One of the older ones took the lead and asked: Sorry to excuse you, is this Comrade Chang Haonan? The eyes of the three people were attracted almost at the same time. Yes, I am Chang Haonan, may I ask who you are Academician Wang? Before Chang Haonan finished speaking, Guo Lin stood up directly next to him, and at the same time called out the other party''s identity almost incoherently: "Why do I have no idea...why did you suddenly..." ??Although Chang Haonan and Xu Yang were still a little confused, when they heard Guo Lin''s name, they stood up to show respect. Academician Wang came to our 14th Institute this time to inspect the pre-research status of several new radars. Everything was kept simple and no one not involved in the project was notified. The person following him was Luo Qun, the deputy director of the 14th Institute. He had appeared several times during this period, mainly to express condolences and provide welfare, so Chang Haonan was deeply impressed. You just sit down, Im here to have a chat with Comrade Xiao Chang. As soon as the person known as Academician Wang finished speaking, Luo Qun moved two chairs from the side, and the five people sat back at the table again. It was at this moment that Chang Haonan finally realized the identity of the other party. ? Wang Xiaomo, an academician of the Academy of Engineering, was born in the Electronic Technology Group. Chief designer and general consultant of China''s three future early warning aircraft: Air Police 200, Air Police 500, and ZDK03. At present, he should be serving as the executive vice president of the Institute of Electronic Science, which just matches the title given by Guo Lingang. The status of the 14th Institute within the Electronic Technology Group is similar to that of the 601st Institute/112th Factory within the aviation industry. Many of its brother units were branched off from it during the third-line construction period. Therefore, although Wang Xiaomo is considered to be from the 38th Institute, he was actually in the 14th Institute when he was young. Worked. ?This name was naturally familiar to Chang Haonan, but this was the first time he saw a real person who was less than 60 years old and still in the prime of life, so he didn''t recognize it for a while. Are you...Academician Wang Xiaomo? Even though he had basically confirmed his guess, Chang Haonan still asked out of politeness. You know me? ?Wang Xiaomo was a little curious. He asked himself whether his reputation had not spread beyond the electronics system. I couldnt recognize you at first, but Guo Gongs name just now made me guess it. Ive heard stories about the development process of 383 radar before, so I know your name. ?Chang Haonans tone was neither humble nor arrogant, but a few words narrowed the distance between the two The 383 three-dimensional radar is Wang Xiaomo''s proud work in the mountains of Guizhou Province. It has also won the first prize of the National Science and Technology Progress Award. Even though he is now considered successful, hearing young people mention this model still makes him feel better. few. ?This is like a father hearing others praise his child. It is impossible to be unhappy. ?Of course, another important reason lies in the person who said this.? ? ? ?It would be impossible to have the same effect if an ordinary engineer from the 14th Institute were here. I had a meeting with Chief Engineer Liang Shaoxiu of Nanzheng 182 Factory a few days ago, and learned about your name, Comrade Xiao Chang, and some other things from him. ??Wang Xiaomo first explained why he could recognize Chang Haonan, and then continued: I just heard you chatting, and it seemed like you were talking about exchanging technology for technology? ?Hearing this question, Chang Haonan calculated the timeline for the development of China''s early warning aircraft as quickly as possible. Obviously, Wang Xiaomo was attracted by the topic of technology introduction. Or, to be more precise, I should have been attracted by Chang Haonans words, It is unreliable to spend money to buy technology and market for technology. ? It is now March 1997, which happens to be the Ring Project, that is, shortly after the project of combining the IL-76 airframe and the Davidson "Falcon" system for an early warning aircraft was officially established. At present, it is probably in the radar design and production stage after the overall plan is finalized. ??According to the declassified information from previous lives, Wang Xiaomo himself is not so optimistic about this cooperation. He has repeatedly proposed to arrange domestic supporting research and development simultaneously, and cannot pin all his hopes on foreign parties. Later events proved that he was right. In 2000, David unilaterally tore up the contract and stopped the research and development project. ??Although they fully refunded the funds paid by China in advance, even if the losses caused by inflation between 1992 and 2000 are not taken into account, the many years of delay are difficult to make up for. Now, Wang Xiaomo is sitting in front of Chang Haonan, and has already shown his concern. When God gives you a good opportunity, you have to do something. Yes, use our technology to exchange the opponents technology, so that we have a trump card in our hand, so that the opponent dare not flip the table casually. Chang Haonan did not have the opportunity to change the topic, but followed the other party''s question and answered. From what Comrade Xiao Chang says, does it mean that you dont trust the European side? There wasn''t much emotion in Wang Xiaomo''s tone. If it were another person sitting here talking to him, it would probably take a while to judge his stance. But it is not necessary for Chang Haonan, who knows the direction of history. He clearly knew that the other party had already started planning for simultaneous development at this time, so his attitude should be the same as his own. Its a relationship of interest and cooperation. Its not about trust or distrust. Lets be prepared. After all, our aviation industry has suffered losses in this regard before. Of course it is impossible for Chang Haonan to jump directly and say that the Kingdom of David will not be reliable after three years. He can only start from the side: From being a model of peace back then to assembling the MD82 aircraft, we have tried both ways, buying it with money and using the market for it, but the result was a **** blow, losing my wife and losing the army. "So now we have learned from the experience. Although the overall level of the domestic aviation industry is still relatively backward, there is a qualitative change between having and not having it. There is no problem in introducing advanced foreign technologies and concepts, but the principle of walking on two legs cannot be lost. , it is necessary to ensure that independent routes and models are not affected. Wang Xiaomo, who is in his sixties, naturally cannot be as happy and angry as a young man, but after hearing an answer that was almost completely similar to his own, he couldn''t help but feel relaxed, and his whole expression and posture were also relaxed. few. ?Of course, both of them know that this is the end of the topic. ??The tone of the ring project was set in the early 1990s, and even the money had been given out. Not to mention Chang Haonan, not even the chief engineer Wang Xiaomo himself could say that he wanted to terminate the cooperation at this time. This is something that the latter has always been troubled about - Although domestic supporting research and development continues to advance, it is not an established part of the ring project. No project means no money. ??But after hearing what Chang Haonan said about the big plane walking on two legs, Wang Xiaomo suddenly had a bold idea. (End of this chapter) Chapter 253 High and low matching of early warning aircraft Chapter 253 The high and low matching of early warning aircraft I heard from Engineer Liang that at the end of last year, Comrade Xiao Chang, were you responsible for improving the anti-icing design of the Yun-8J and Yun-8F400 aircraft? From the perspective of others around him, Wang Xiaomo seemed to have suddenly changed the topic to a completely irrelevant direction. But for Chang Haonan, he can almost guess what the other person is thinking. Since it walks on two legs, it is necessary to develop a completely autonomous model at the same time. Mobilizing a large amount of manpower and material resources to do simultaneous supporting research and development for the ring project is indeed a duplication of work. Even if the Science and Technology Commission provides support to Wang Xiaomo, it will be difficult to obtain more financial support within the framework of the original project. But let me change my name and say that the cost of a large-scale early warning aircraft based on the IL-76 platform is too high, and the aircraft cannot be produced domestically, so the production quantity must be limited. Now we need to rely on existing technology to design a cost-effective medium-sized early warning aircraft to spread the equipment. You You have nothing to say, right? ?In this day and age, the four words "high cost performance" have an unusual magic power for the military. "Yes, there were flaws in the anti-icing design of the Lao Yun 8 platform in the past. Under low temperature and high humidity conditions, it is easy for ice to form during flight. Once the **** are opened again, it may cause the downwash airflow to interfere with the horizontal tail, resulting in An accident occurred due to instantaneous height loss..." Chang Haonan made a simple gesture in mid-air with both hands, but it was obvious that several electronic engineers who had not studied aircraft design could not immediately understand the specific principles. ?But at least the conclusion is understandable The improved Y8 is now much safer than before. "When I communicated with Comrade Liang Shaoxiu before, he told me that even after installing the radar module, the Yun-8J can still ensure sufficient maneuverability. I wonder if Comrade Xiao Chang can estimate the stability of the Yun-8 platform. Performance, especially heading stability...well, how much redundancy is there?" Wang Xiaomos question involves a circuit term. Of course, Chang Haonan could understand that he wanted to ask how much modifications the aircraft could endure that would destroy its aerodynamic design. ??However, there is no indicator that can quantify this concept in the aviation field. So he also asked directly: Do you want to transform the early warning aircraft based on the Yun-8 platform? Thats right. ?Wang Xiaomo nodded: "The only large aircraft that our country can produce completely on its own now are the Y-8, the H-6 and the H-5, but what about the latter two... The H-6''s magazine is too small and it is impossible to arrange equipment and personnel inside, and the H-5 is too early It has been discontinued, and the performance is really not good, so the only possibility is a Yun 8. " Even though there were only five of them left in the canteen, it was inappropriate to talk about the early warning aircraft here. So a few people, led by Luo Qun, went to a small conference room on the top floor of the administrative building. I wonder if Comrade Xiao Chang has ever heard of the ring project that our country cooperates with the Davidic Kingdom? After sitting down, Wang Xiaomo asked first. Coming Chang Haonan thought that he finally let the other party bring the topic to this point. Although he had made several rounds of predictions just now, they were all done in his own mind. From the perspective of outsiders, he did not necessarily know much about the early warning aircraft. So you still have to pretend at this time: I just heard something, please tell me. At this time, Guo Lin looked around and found that other than himself, there were either leaders or guests in the conference room, so he had to get up and pour a few cups of tea, and handed them to the other people. "Well... this matter started in 1992. Affected by the Gulf War at that time, the superiors approved a total budget of 1 billion US dollars. They wanted to find the David Kingdom to introduce their Falcon phased array radar technology. Several of our own early warning aircraft came out..." Subsequently, Wang Xiaomo spent more than ten minutes introducing the ins and outs of the entire early warning aircraft cooperation project to Chang Haonan and Xu Yang, who were unaware (at least that''s what he thought). One billion U.S. dollars? Change to 4 aircraft? Even Xu Yang, who had seen a lot of the world, was also shocked by this number. ?Including Chang Haonan, he was a little stunned when he heard this number now. In his previous life, he had heard about the US$160 million advance payment and liquidated damages, but he didn''t actually have a very intuitive concept. ?Now, after doing so many projects in the 1990s, I realize what a terrifying amount of money this is. An aircraft with a unit price of US$250 million. This was the mid-1990s. The two modern-class destroyers purchased from Russia last year have a displacement of nearly 8,000 tons and come with a lot of technical information. Each ship only costs 400 million US dollars. J-7F, the R&D expenditure of the entire project is less than 10 million US dollars. Although the country''s foreign exchange reserves are no longer as stretched as they were in the 1980s, they are definitely not wealthy. The allocation of such a large sum of money at one time is indeed enough to show how much the 1991 war brought to China. . "The price is indeed relatively high, but there is nothing we can do about it. At that time, our technical foundation was worse than it is now. The only countries in the world that can sell our early warning aircraft technology are David and Russia. But Lao Maozi''s A50U is a machine-sweeping radar after all, and It was not that advanced, and coupled with some tendencies from above, I finally chose the Kingdom of David. ?Wang Xiaomo picked up the cup and took a sip of tea: "And if we can really replace these four aircraft, the 1 billion will be just 1 billion. After all, the large early warning aircraft is strategic-level equipment. The money is not wasted. What I worry about is that others are playing tricks with us and taking advantage of this The project destroys our independent development route. If someone breaks the contract directly, even if they compensate us a sum of money, we will not be able to get back the lost time. " When he heard this, Chang Haonan almost wanted to stand up and applaud. They all guessed correctly. ?In the original timeline, China''s radar industry was able to explode at the beginning of the 21st century, which was absolutely inseparable from this old man''s keen foresight. ?He overcame all difficulties and still persisted in the path of domestic supporting research and development. Even in 1998, another IL-76 aircraft was obtained at a low price through some channels, and preliminary verification research on the modification of the early warning aircraft platform was simultaneously started in China. This was the miraculous efficiency of the Great David''s default in 2000 and the refusal to deliver the first early warning aircraft, which had almost completed its transformation. At the end of that year, the Air Police 2000 project was completed and officially put into service with the army in less than 7 years. Afterwards, the United States assessed that the Ring Project probably delayed Chinas early warning aircraft project by 3-4 years. ?With no one cheating to help, this can be regarded as minimizing the loss. ? Its just that in this life, Chang Haonan is confident that the losses in the past few years will no longer exist, and even the world-leading air police series models will be released ahead of schedule! Judging from the past experience of our aviation industry, your concerns may be justified. ?Chang Haonan gave the other party a small compliment. Thats why our Electronic Technology Group is thinking of using the existing domestic technical strength and combining what we have learned from others over the years to develop a lower-grade medium-sized early warning aircraft in parallel. "In this way, it would be best if the Kingdom of David doesn''t cause any trouble. Our early warning aircraft will be used as a supplement to the ring project. If something goes wrong, at least there will be a model of our own that can cause trouble. When Daliang comes, he wont be unprepared at all. Until now, all developments have been within Chang Haonans expectations. However, Wang Xiaomo then changed the topic and lightly tapped the table with two fingers: "That''s why I went to see Comrade Liang Shaoxiu before to see if Yun 8 had potential in this area, and he recommended you to me, saying that there should be only one comrade named Chang Haonan in the country who could give a confirmation in a short time. conclusion. "Originally, I was planning to go to the capital after leaving the 14th Institute, but I happened to meet him here today." (End of this chapter) Chapter 254 Air Police 200, wedge tail antenna Chapter 254 Air Police 200, wedge tail antenna ?Although what Liang Shaoxiu said was not wrong, this plot development was something Chang Haonan never expected. ? It seems that due to word-of-mouth spread among aviation industry insiders, the speed and scope of his reputation are beyond imagination. ?This is also a good thing. The higher his reputation, the easier it will be to achieve the goal he set at the beginning of his rebirth. Besides, as a normal person, Chang Haonan''s mood naturally improved a lot after hearing others make such comments about himself. As for Wang Xiaomos problem... For him, this is not even a problem. After all, the Air Police 200 in the previous life was designed on the basis of the Y8 III platform. Now, after a round of additional improvements, the performance of the Y-8F-400 in all aspects, especially safety and low-speed maneuverability, far exceeds the former. Naturally, it is more suitable as a special aircraft platform including early warning aircraft. Of course, if the plan that Chang Haonan designed with Ding Gaoheng can be completed normally, then after entering the new century, China should be able to complete the design improvement and localization of the Tu 204/214 passenger aircraft. By then, there will be no need The veteran of Yun 8 continues to take the lead. Hence, there should not be as many models using Category III platforms as in the previous generation. ?But these are all things for later. At present, we can only consider building a dojo inside the snail shell of Yun 8. ?From the perspective of hindsight, the design of the Air Police 200 is not perfect, and there are still many areas that can be improved. This also leaves room for Chang Haonan, who is not satisfied with simply replicating previous designs, to play. The only thing he needs to determine is the current level of China''s radar technology. ?The electronics industry is already developing at a fast pace. Just because the 14th Institute of Electronic Science and Technology in 2002 was able to build an early warning aircraft radar does not mean that the 14th Institute of Electronic Science and Technology in 1997 could also do it. Therefore, after a brief hesitation, Chang Haonan still did not take care of everything and chose a relatively cautious response: Although I am very grateful to Liang Gong and Academician Wang for your trust in me, I definitely need some more detailed information before I can make a judgment on this matter. After all, the core of developing early warning aircraft is radar. The Y-8 platform does have considerable modification potential from a structural and aerodynamic perspective, but whether it can be implemented depends on whether the Electronic Technology Group can come up with a sufficiently compact radar. " At this point, he paused for a moment and then added an example: For example, a disc-shaped radome with a diameter of more than ten meters like the ring project you just mentioned cannot be installed on the Yun-8. It is too big. ??Although he did not receive any direct guarantee, Wang Xiaomo still sensed a very positive meaning from Chang Haonan''s tone and attitude. It shows that the feasibility of modifying the early warning aircraft is actually very high in the latter''s mind. Its just that the instinctive rigor of engineers prevents them from directly drawing a conclusion. ?This made Chang Haonans evaluation in Wang Xiaomos heart even higher After all, he is an academician of the Electronic Science and Technology Group, and he has not intuitively felt the other party''s abilities like Du Yishan and others. ??Although he has Liang Shaoxiu''s endorsement, after meeting him today, the young academician still felt a little guilty because of the young man in front of him. ?Engineering is not the same as theoretical research. On the one hand, it requires experience, and on the other hand, it also requires a calm mind. Both of these often need to grow slowly over time. A bit like doctors and teachers, an image that is too young always makes people feel unreliable at first. Now, Chang Haonan has at least proven that he has no shortcomings in the latter aspect. Trust is built step by step in this way. This is what I think about the design of radar antennas. Wang Xiaomo took out a few pieces of paper from the briefcase he carried with him, obviously prepared: "Based on our current technical level, in order to ensure that the radar has a detection range of about 300 kilometers for targets with an RCS of 5 square meters, about 2,000 T/R components are needed. Uh... Xiao Chang, what should you know? Is it called T/R component? ?Seeing Chang Haonan nod, he continued: "Combined with the packaging process, if you want to arrange these two thousand T/R components on an array, the size must be 8.5*0.6m. In this case, as you just said, the disc radome and The three-sided array structure will definitely not work. Speaking of this, Wang Xiaomo turned over the calculation of the antenna size on the first page, revealing the overall plan concept on the second page. As expected, it was exactly what Chang Haonan was familiar with. ?But he still had to pretend to be slightly surprised: Is it a balance beam antenna? "Yes, in fact, the Saab 340 early warning aircraft that the Swedes first flew two years ago already used such a structure. Although there are 60 blind spots directly in front and behind the aircraft, the antenna can be installed vertically on the aircraft. The entire antenna structure The weight can also be reduced to less than 1 ton, which should be more convenient for your aircraft design department. " If an 8.5-meter antenna is installed like this, it should be acceptable. ?Chang Haonan saw that the heat was almost there, so he was ready to reveal the more complete plan: But I have a slightly different idea. Sure enough, Wang Xiaomo showed an interesting expression: Tell me about it. Actually, I also paid attention to the situation of some Saab 340s at that time, so I did some calculations in my spare time. ?Chang Haonan picked up a pen from the side, and at the same time, Guo Lin also placed a piece of paper in front of him. Hand the paper to the boss.jpg There is no such thing as paying attention to the Saab 340AEW. This model first flew in 1994. At that time, Chang Haonan had not yet been reborn. He was just a sophomore who worked hard but had average talent. ??Its just that this kind of thing is obviously what he said. First of all, even in terms of the balance beam design, Saabs solution is very poor. They chose a radar cabin bracket solution that has the greatest adverse impact on the aircraft. As he spoke, Chang Haonan drew several different radar installation methods on the paper with a large stroke of his pen. The yaw stability derivative of the plan A bracket selected by Saab 340AEW is positive and has an unstable effect, but this situation will not occur in the other three plans. "But the point I want to say is not this, but this type of balance beam antenna. No matter how it is designed, it cannot avoid the bracket causing side wash at the vertical tail, interfering with the direction of the vertical tail flow, and at the same time, the blocking effect of the bracket is reduced. Regarding the incoming flow speed on the vertical fin, it can be said that the damage caused by this bracket to the directional stability is even greater than that of the radar antenna itself. " Is that so? For those who are not majoring in aviation, this conclusion does sound a bit counter-intuitive at first, but the problem of aerodynamics is like this, and some inconspicuous small places are of great importance. Thats right. ?Chang Haonan nodded, and the movement of drawing lines on his hand was also very fast: "To make up for this loss of stability, we not only need to design two large ventral fins on the tail, but also consider raising the vertical tail part. If it is a large aircraft like the IL-76, that''s it, but the Y-8 has the largest The take-off weight is only 60 tons. After modification, it will have a great impact on the structure. Further adjustments to the airframe will be required, which will be too much work. " "So we might as well open up our minds and simply get rid of this obstructive bracket, connect the radar array directly to the fuselage, and let the antenna itself serve as a supporting structure. This way, the impact on directional stability and the resistance it brings will be smaller. Moreover, a larger array area can be obtained. In addition, a ''hat''-like structure can be added on top of the side-view antenna to install two antenna arrays in the front and rear directions. Although the performance is definitely not comparable to that of the side view, at least it can be considered achievable. 360 full coverage. Although this will still have some impact, it can be offset by adding two ventral fins, and there is almost no need to make major modifications to the overall structure of the aircraft. Practice makes perfect when it comes to painting, because during this period he often used similar methods to present plans, so the things he painted now were at least less abstract. At least Wang Xiaomo can understand it at a glance. In fact, the plan proposed by Chang Haonan is basically the "wedge tail" antenna of the previous American E737 early warning aircraft. It can be regarded as a comprehensive upgrade of the traditional balance beam plan. ?The only disadvantage is that the weight of the wedge-tail structure is much larger than that of the balance beam, so it cannot be installed on a platform that is too small. However, perhaps the only advantage of the Y-8 as a special aircraft platform is its large load capacity. The Boeing 737 has a load capacity of 16 tons, and the Y-8 can carry 20 tons. A few hundred kilograms more is not a problem at all. In short, if the Air Police 200 can use this design in advance, it will definitely bring about huge performance improvements. Its also good news for pilots. You must know that early warning aircraft are generally not easy to fly. (End of this chapter) Chapter 255 "9910" project Chapter 255 9910 Project ?Wang Xiaomo lowered his head and looked at the new plan drawn by Chang Haonan on the paper for a long time: It is indeed much better than the original balance beam structure. In fact, for electronic engineers like them, the shape of the main antennas is a back-to-back rectangular double-sided array. There is no difference whether the antenna is set up or directly connected to the aircraft body. The main difference between the two configurations is in the aircraft. aerodynamic design. But this novel structure still interests Wang Xiaomo: It seems that Comrade Liang Shaoxiu is right. You have already prepared the overall design of the early warning aircraft. I cant talk about preparation, it can only be regarded as some habitual attention. Chang Haonan put the pen aside, picked up the cup and took a sip of the slightly cold tea: What I just said are still qualitative conclusions. If you really want to start doing project feasibility analysis, you will definitely need more rigorous quantitative calculations. ?This is really not being modest. Before his rebirth, he had not actually participated in the research and development of traditional concept early warning aircraft, but for a period of time he cooperated with the 601 Research Institute in the research of long-endurance unmanned early warning aircraft. Because drones do not need to consider the cabin to accommodate people, the design logic from the beginning is almost completely different. For example, conformal arrays can be arranged more conveniently. Chang Haonan only did some research on manned-machine platforms at that time. Even made a prediction of the flight performance of the E737 early warning aircraft. ?Now that I think about it, I still regret itif I had known earlier, I would have just chosen the Luck 8 platform, which would have saved me a lot of trouble. The feasibility study must be done. We can prepare it now, and when we find a suitable opportunity, we will submit the project. After confirming the modification potential of the Yun 8 platform from Chang Haonan, Wang Xiaomo was also in a good mood. As he spoke, he quickly organized his manuscripts on the table and put them back into his briefcase: Besides, Comrade Xiao Chang, you are not from the Electronic Technology Group. We distinguish between public and private affairs. This early warning aircraft has not yet been cleared up, and I have no position to ask you to do voluntary labor for us, so Xiao Luo. Luo Qun, who had been hiding next to him just now, was suddenly called by his name and stood up quickly: "arrive!" Your 14th Institute should issue a tender for the aerodynamic and structural performance analysis of the aircraft platform as soon as possible in the name of Guorui Technology. Let Comrade Xiao Chang bid in the name of the research group after he returns. Dont let the comrades in the aviation system suffer. Luo Quns eyes were full of meaning, and he glanced at Chang Haonan opposite him with envy. ??If this kind of preliminary demonstration work were left within them, and they would directly assign people to do it, and at most give some bonuses, how could there be such a big battle? ?But now that Wang Xiaomo has spoken, it is impossible for him to have any opinions on this matter. After all, if you think about it from another perspective, if the Electronic Technology Group in turn works for other brother units, it will not be a waste of work: "yes!" ?Chang Haonan has no reason to refuse. The cost of preliminary demonstration may not even reach one thousandth of the total project cost, but it is a large amount of money for the research team and himself. You can talk about dedication, but you cant just talk about dedication. By the way, Academician Wang, is that a direct negotiation? Luo Qun, who had just sat down, confirmed with Wang Xiaomo. The latter nodded: Yes, the bid invitation process is too long, we have to hurry up. The so-called bid negotiation refers to a non-public bidding, which is completed through one-to-one negotiation between the purchaser and the purchased party. In essence, it is price comparison procurement, while the invitation to bid is a competitive bidding in the general sense. In the 1990s, the Bidding and Bidding Law had not yet excluded this form from bidding. ?Although it is expected to be a "low-cost" model, that is compared to the Torus Project, which costs US$250 million per unit. Early warning aircraft, or early warning aircraft using active phased array radars, are fundamentally not cheap. An upfront R&D investment of several hundred million yuan is always required. Even for Wang Xiaomo, the executive vice president and academician of the Institute of Electronic Science and Technology, a project involving this level of funding is definitely not something that can be initiated just by writing a report. ?It''s better to have a name or catch up with something. ?For example, the success of the Ring Project was due to the Gulf War. Chang Haonan, who has been involved in the military industry system for many years, naturally understands this. ?But actually he had just the right name in mind, but he was a little short on time: Academician Wang, I wonder how efficient we are in producing this kind of phased array radar antenna now? Not very quickly. ?Wang Xiaomo gave the final answer very simply. He now truly regards Chang Haonan as an equal partner: "The production of semiconductor components itself is actually good, because they can be used with other radars, so there is some reserve. However, the packaging of T/R components requires the use of high-silicon aluminum alloy. Now we can only process it through manual milling. The output and yield rate are average. Like the antenna structure you just mentioned, two large and two small four-area arrays, it requires at least 5,000 components. Even if it takes half a year to produce, including final assembly and debugging...8-10 components The month should be relatively safe. ?This answer is indeed somewhat beyond Chang Haonan''s expectations. ?But having said that, it is quite remarkable that the Electronic Technology Group in 1997 was able to build this thing on its own. And this production capacity problem can also explain why in the original timeline, China had the first early warning aircraft using active phased array radar, the Air Police 200, in 2006, but it was not until 2016 that the first type of early warning aircraft with active phased array radar was equipped in batches. Source phased array radar for fighter J-16. ??Wang Xiaomo next to him, although he was eager to get the project approved immediately, but as an elder, he still comforted himself and said: After all, the early warning aircraft is a strategic project, Comrade Xiao Chang, dont be too anxious. Actually...I was wondering if this early warning system could hitch a ride on Project 9910..." ?Chang Haonan also expressed his thoughts directly. Project 9910, as the name suggests, is a huge project in preparation for the military parade in October 1999. Although for a long time, this name was mostly used to refer specifically to the prototype of the Type 99 tank, in fact, all the equipment participating in that military parade, from aircraft and tanks to clothing, shoes and hats, all belonged to Project 9910 part. For mature equipment, the focus of this project is to ensure supply, but for some models that are under development, being included in this project means that they are on the fast track of development. Many key models have benefited from it in previous generations. Even Wang Xiaomo, who has seen many storms, was also shocked by this idea: Its already March 1997, and there are only 30 months left before the acceptance of Project 9910. This aircraft..." He did not continue speaking, but just looked down at the briefcase in his hand. The meaning is obvious. This aircraft is still in the state of a sketch without even a project. According to his past understanding of the aviation industry system, let alone finalizing it in 30 months, it may be difficult to even make its first flight. Not to mention the process of project approval. Even if we calculate at the speed of special projects, it will always take four to five months, which will only leave about two years for research and development. In fact, if the progress of the radar system can be kept up in time, there should be no problem in the design and modification of the aircraft platform. ?Chang Haonan is still a little unwilling to miss this opportunity. The military parade is definitely the most exciting celebration, especially for those who pay attention to the military. ?Due to limited conditions in the previous life, the most important achievement of the Chinese Air Force in the 9910 project was to establish a decent support system for the Su-27 aircraft, finally allowing these aircraft to transfer from Suixi Airport to other stations for operation. He was ready to make up for this small regret. Not only the Air Police 200, if possible, he even wants to stuff the J-10 and J-11 into it! (End of this chapter) Chapter 256 Find 38 aircraft to rent! Chapter 256 Looking for 38 borrowed planes! ? Wang Xiaomo finally could not resist the temptation and decided to follow Chang Haonans suggestion and try his best to follow the 9910 project. In this case, many things that were not urgent at first become urgent. Comrade Xiao Chang, since we want to take the 9910 project as the goal, then your preliminary project demonstration..." Dont worry about this. After the bidding is over, I can start construction directly in Jinling, and the calculated results will be directly taken to the wind tunnel at Fucheng 29 base for testing, so that the two sides can proceed nearly simultaneously. ?Chang Haonan was naturally prepared. ??He has done this kind of parallel processing of multiple tasks within the limit of time more than once before, and now he is familiar with it. What''s more, from the perspective of the aviation department, adding a wedge tail is not too complicated compared to adding a disc, and does not require frequent docking with the wind tunnel testers. In fact, in the previous life, it only took about 20 months for the Air Police 200 from project establishment to first flight. If it were not for the unexpected air crash, it would have been in service earlier. Although that was done when a lot of technology had been accumulated before the project was established. But now Chang Haonan has more trump cards, which are completely justified. After all, it was just a demonstration before the project started, not a big job, so a few people only spent half a night to determine the overall direction of the matter. For Chang Haonan today, this kind of thing is already familiar and does not require the help of the system at all. Especially the data of Yun 8 itself has been digitally entered by Liang Shaoxiu and others from the 172 Factory. It can be called directly. Just put the T-shaped antenna Just add the two parts of the tail fin and the tail fin, the actual workload is not too much. What''s more, although Xu Yang and the engineers at the 14th Institute of Electrical Engineering have never studied aircraft design, they have learned algorithms to some extent, so they can still help. The most time-consuming part is probably waiting for the results. The current computer performance cannot keep up with the demand. So in the next period of time, we can take advantage of every opportunity to analyze the aerodynamics and structure of the wedge-tailed early warning aircraft - Although some tricks have been used to reduce the demand for hardware performance when designing the pod, so there are no insurmountable obstacles in the trial production process, the electronic jamming pod is a new thing for the 14th Institute after all, and it has never been The packaging technology borrowed from the captured pod still needs to be adapted. Therefore, with the basic design already completed, it is expected that the two engineering prototypes, one large and one small, will still take about half a month to be manufactured. This is because there is no need to consider external aerodynamic modifications and other issues during the prototype stage, which reduces a lot of unnecessary work hours, otherwise it would take longer. In short, a few days later, when Chang Haonan handed over the demonstration report with numerical calculation results and several wind tunnel test data to Wang Xiaomo, who had not even had time to leave Jinling, the first sentence the latter subconsciously asked was: Have you prepared the report a long time ago? Chang Haonan naturally told the truth about this: Thats not true. Although I have been studying this T-shaped antenna for a while, I really started to analyze it only after I communicated with you that day. But its only been ten days? ?Wang Xiaomo looked at the calendar next to him: "No, it took nine and a half days. How come the data in this report is so detailed? I have worked with people from the Aviation Industry Corporation of China before, and it has never been so fast." To put it aside, at the beginning of last year, when we were revamping the No. 713 electronic equipment testing machine, we had to wait for a month just to blow up the wind tunnel. This was the efficiency we achieved after I urged Director Ding many times. Therefore, looking at the old academician in front of him with an expression of "either you are trying to trick me or they are trying to trick me", Chang Haonan felt that he had to explain to the former colleagues (and future colleagues) of the 29 Base who had never met him: "Academician Wang, it''s like this. If you want to do a complete wind tunnel test for a new model of aircraft, it will indeed take several months or even years. Even for a model like No. 713 with minor modifications, it will only take a month. Its normal. "But after all, we are just demonstrating now, and because of the support of my calculation data, the wind tunnel test conditions can be selected more accurately, without having to slowly approach it in a large range as in the past. In a 100-hour wind tunnel, 90 hours may be spent on debugging. Now it may only require 10 hours of debugging, and the efficiency will naturally be higher. ?The No. 713 verification machine just mentioned by the two men is an equipment verification platform that was improved from the Yun-7 and belongs to the 38th Institute of Electrical Engineering. In terms of reputation, it is far inferior to the No. 079 Yun-8 verification platform that later conducted many radar equipment verifications for the J-10 and J-11, and it is even worse than the No. 769 Tu-204 verification platform that later performed verification for the J-20, but it is China''s Beginning in this field. In fact, when Chang Haonan came here today, in addition to handing the demonstration report to Wang Xiaomo, his other purpose was to borrow this plane. And its for jumping in line! So thats it? ??Wang Xiaomo, who knew that the distance between the lines was like a mountain, felt a little strange, but he did not continue to ask further. But he immediately realized a problem. What a loss! Wait a minute, according to what you said, the wind tunnel that used to take 100 hours can now be completed in 20 hours. Then in the contract we signed before, the equipment fee and labor time fee are... Chang Haonan naturally cannot let go of this kind of problem: Academician Wang, your Electronic Technology Group has a big business, so you definitely wont care if these hundreds of thousands of dollars are not... On the one hand, the contract has been signed and there is no reason to change. On the other hand, the advance payment from Dianke Group has been divided among several units and individuals involved in the work. ?However, Wang Xiaomo never really thought about getting the money back. After joking with Chang Haonan for a while, he turned his attention to the report in his hand: The writing is very skillful, it doesnt feel like its my first time "Bonus, no prizes. I''ve read a lot before, so I can get started faster when I write..." Chang Haonan did not dare to talk about other things in his previous life. The hard work of writing reports highlighted his rich experience. Although it was more than 20 years ago, the writing style of the aviation industry system has not changed much, and it can be seamlessly connected. Then he followed Wang Xiaomo''s progress in reading the report and began to introduce the contents. "The T-shaped antenna will cause the cruise resistance of the entire aircraft to increase by about 9%, and move the focus of the entire aircraft backward by about 2.5% of the average aerodynamic chord. However, we can solve this change by adjusting the distribution of equipment in the aircraft, and combined with the tail fin to bring With a resistance of 2%, the economic cruising speed of the wedge-tail early warning aircraft will be about 40-50km/h lower than that of the Y-8 prototype. " "In terms of flight stability, the T-shaped antenna and the ventral fin itself will enhance the directional stability of the aircraft, but the former will also destroy the contribution of the tail to directional stability. Generally speaking, after the modification, the yaw moment coefficient and lateral force The derivatives of the coefficients with respect to the sideslip angle decreased by 0.009 and increased by 0.0005 respectively, indicating that under the action of appropriate ventral fins, the directional stability of the entire aircraft has reached an acceptable state..." ??Although Wang Xiaomo is not a professional in aircraft design, he quickly understood the entire content of the report based on the data charts and Chang Haonan''s explanation. With this report, the probability of project approval will increase a lot. The old academician closed the report again with a pleased expression and put it back into the briefcase with other materials. ?Chang Haonan realized that it was time to borrow the plane: Academician Wang, I have a heartfelt invitation when I come this time... ?Wang Xiaomo, who was in a good mood, was unguarded: "You said, as long as I can do it personally and it doesn''t violate the principles, I can mention it." Ahem Chang Haonan was not polite: We hope to borrow the No. 713 electronic equipment verification machine from the 38th Institute. It will be used probably next week. ?Wang Xiaomos movement of organizing his briefcase suddenly stopped. (End of this chapter) Chapter 257 Come and be my deputy chief engineer! Chapter 257 Come and be my deputy chief engineer! ?The reason why Chang Haonan wanted to borrow the No. 713 electronic equipment verification machine is also very simple. He wants to test the two jamming pods that are about to be completed. Anything that is going to go to heaven cannot be tested only on the ground. ??Moreover, many of the air search and fire control radars that jamming pods mainly face do not have ground search modes. What''s more, pulse Doppler radar also has the characteristic of filtering out low-speed targets. Fixing the pod on the ground and then shining it with a radar will definitely not get any useful data. Therefore, after confirming that the equipment can work normally when powered on, and that there are no problems with circuit design and programming, aerial platform testing is necessary. Under normal circumstances, everyone is a unit under the Committee of Science and Technology. Although the 38th Institute took the lead in building No. 713 machine, after all, it is a chess game across the country, and others will not be unable to use it. However, what Chang Haonan just said was "it will be used next week." This means jumping in line. Although Institute 14 and Institute 38 belong to the same group and are very close to each other, they still have to settle accounts clearly. Whats more, in such a large industry as Electronic Technology Group, cooperation and competition coexist between different institutes. Under normal circumstances, it is quite difficult to jump in line. ?However, if Wang Xiaomo nodded, the situation would be different. After all, in addition to being the executive vice president of the Institute of Electronic Science, he was also the founder and old director of the 38th Institute of Electronic Science and Technology. Unit No. 713...should be testing a seeker now. What are you going to use it for...?" Academician Wang, you should know that Researcher Xu and I came to Institute 14 this time for the captured pod ?Although this matter is highly classified, Wang Xiaomo definitely has the authority. Of course I know that. ??Wang Xiaomo nodded, the expression on his face revealed some confusion, but there was a bit of surprise in his tone: But wasnt that thing shipped back at the end of last month? Did you repair it so quickly? If the feasibility study report that had just been released 10 days ago was still something that an outsider dared not comment on casually, then this project of researching jamming pods belonged to his old field, and he was fully aware of the implications. How much work there is. What''s more, he has also seen the pod. Although the report stated that "the wreckage is relatively complete," that was obviously based on the standards of a plane crash. ? Judging from the standards of electronic products, it can definitely be called to pieces... So everyone never thought about fixing it from the beginning. They just thought about whether they could research something, preferably by replicating the function of creating false targets for PD radar. But according to Chang Haonans words in front of me, is this an extraordinary performance? Hearing Wang Xiaomos speculation, Chang Haonan quickly denied it: Its definitely impossible to repair it. The storage inside the pod has been severely damaged, and many of the components in it are high-end goods that are strictly embargoed by us and cannot be purchased on the market. Such an answer made Wang Xiaomo feel a little disappointed. After all, he had really expected it for a moment. But while feeling disappointed, I also felt a little relieved It seems that my understanding of airborne electronic equipment is not wrong. However, this complicated feeling did not last long. Because Chang Haonan said the next sentence: We have done preliminary research on the pod, and then modified it according to the existing domestic technical level, and built two with the same function. It is expected to be produced and tested next week. The atmosphere in the room fell into silence for a moment. ?Wang Xiaomo looked at Chang Haonan in front of him with puzzled eyes and muttered in his heart: Is there something wrong with my understanding of the onboard electronic equipment? That thing is actually very simple? ?After a long while, he asked again: Have you always done projects so quickly? "Well" Chang Haonan didnt know how to answer this question for a while: "It''s not bad. It''s not very fast. The main reason is that I have learned some basic theories of control, which coincides with the emergency response logic of the pod. In addition, the work efficiency of the comrades is also very high." At first glance, these words sounded It is modest, but the way he speaks indirectly shows the speaker''s leadership status. In this case, your testing process shouldnt take too long. Wang Xiaomo, who gradually came out of the shock, quickly nodded in agreement: I will contact you right away. You can go to Yanliang for a test flight at any time next week, and the 38th Institute will do its best to cooperate. After all, this is his old work unit, so he still has some respect. ?Chang Haonan quickly thanked him. Then thank you so much for giving us this convenience. There is no need to thank you. These are key projects related to national defense and security. You are not giving yourself any personal gain. ?Wang Xiaomo waved his hand: However, I also have a condition. You said. When this early warning aircraft project is finalized, you have to come and serve as my chief engineer. ??Wang Xiaomos current wave is also one of the most prominent ones. "ah?" ?This time it was Chang Haonan''s turn to be confused: The project chief engineer should not be you Halfway through his words, he suddenly remembered that because the AWACS was closely related to both radar and aviation fields, it seemed that a unique dual-chief engineer system was implemented, that is, a chief engineer of the Electronic Technology Group and a chief engineer of the aviation industry. As expected, Wang Xiaomo explained: "The chief engineer is indeed me, so I can only grieve you for publicly displaying the title of deputy chief engineer, but you will not be missing in terms of authority. During this time, I have found that it is difficult for people from our electrical engineering background to work in a short period of time. I can understand the needs of the aircraft design itself within a certain period of time, so I will take the lead in planning, and the specific tasks will be coordinated by the deputy chief engineer assigned by both parties. " Before Chang Haonan could answer, he added: "Don''t say you can''t do it. Although I don''t have an aviation background, engineering has its inherent commonality. I''m pretty sure that you are better than at least most of the aerospace engineers I have worked with, and you definitely have this ability. Take up the burden peacefully. Actually, after a very short period of thinking, Chang Haonan had no intention of refusing. No matter how efficient it is, even if the 9910 project is successful, project establishment is still a very troublesome task. It is the end of March. Under normal circumstances, it would take until July-August to officially launch the project. At that time, he already had a bachelor''s degree. ?Mainly before graduating from bachelor''s degree, Chang Haonan actually had a high school diploma. Even if his name is now on it, he is likely to be able to do special things, but being a deputy chief engineer with a high school diploma is still too eye-catching. Its the same as graduating immediately after enrolling for a Ph.D. Its not that its impossible, its mainly that its not necessary. ?Chang Haonan''s current ability to mobilize resources within the Science and Technology Commission system is probably no less than that of a mid-level model chief engineer. ?But its not bad if you have a bachelors degree. Many designers become famous first and then obtain higher degrees. I''m just a little sorry for Liang Shaoxiu who is far away in Nanzheng. In the original timeline, this position should have been his... Okay, I agree. ?Seeing Chang Haonan nodding, the smug Wang Xiaomo became excited: "That''s it. In the project report submitted, I have been temporarily confirmed as the project chief engineer, Comrade Xiao Chang, and Comrade Liang Shaoxiu from the 182 Factory as the first and second deputy chief engineers of the aviation industry respectively. Zhou Qun and Wu Manqing Comrades, how about being our first and second deputy chief engineers in electronic technology?" ?Of course Chang Haonan has no objection. ?The joining of Liang Shaoxiu means that he does not have to be tied to this early warning aircraft project all the time. He only needs to solve some key technical problems. ?Furthermore, although the design of up to four deputy chief engineers has slightly reduced the value of this position, this is still the first time in his two lives that he has received such an opportunity. To say that I am not excited is absolutely nonsense. In short, the flight platform test and the early warning aircraft project were settled together. (End of this chapter) Chapter 258 Jamming pod test! Chapter 258 Jamming pod test! The two pod prototypes were completed several days earlier than previously expected. ?This is not a surprise. After all, anyone who has been Party B knows that when writing a deadline, you must add a period of grace on top of the normal progress just in case. ?Chang Haonan and Xu Yang came to the production workshop from the dormitory area as soon as they received the news. ?Two pods, one large and one small, are lying quietly on the brackets specially designed for them. Although the engineering prototypes are still in a very rough state, they can still give a glimpse of what they will look like in the future. Theres nothing much to say about the large pod. Its just a proportional copy of the captured product, with only components and part of the program code replaced according to Chang Haonans design. The synthetic aperture radar that originally occupied the middle position of the pod has been handed over to another group, and this test does not involve the radar reconnaissance part, so it was replaced with a counterweight block of equal weight and size to prevent The pod was too heavy at both ends and too light in the middle, causing structural problems in the air. The small pod sells much better because it was designed to be carried by tactical aircraft under the wings, so it was designed into a long strip with arcs around it. And in order to ensure compactness, an impact generator with a smaller volume and power was chosen, which was installed at the rear of the pod through two air inlets instead of at the head to avoid interference with the transmitting antenna here. The overall appearance is similar to the K/RKL800 large electronic jamming pod (export model KG800) that was commonly equipped on heavy fighters and bombers in previous generations. The only price is that it cannot be completely powered by itself like that large pod, and needs to be supplemented by a carrier aircraft. ?However, it is not a problem for the J-8C with a power generation of 18kw*2 and the JH-7 with a power generation of 15kw*2. Not to mention the domestic Flanker family, which will have a power generation capacity of 30kw*2 or even higher in the future. Good stuff, good stuff. Chang Haonan patted the pod shell in front of him, which looked a bit like a semi-finished product, and felt quite satisfied. In the previous life, the Chinese navy and air force suffered losses from American electronic warfare equipment in the naval and air confrontation for a long period of time. ?Although they only have one more interference pod now, everything is difficult at the beginning. With the breakthrough from 0 to 1, it will be a matter of course from 1 to 10 or even to 100. By the way, where is Guo Gong? Chang Haonan was just about to call for people to conduct ground power supply and signal input and output tests, but after looking around, he found that Guo Lin was not there. In fact, everyone rushed over temporarily after receiving the news, and many people had not yet arrived. However, Guo Lin usually has food and accommodation at the residence, so he is always the first to arrive when something happens. Today It was a bit strange that I didn''t see anyone else for such a big thing as the pod being offline. Guo Gong...I dont think Ive seen Guo Gong today? Someone thought for a moment and said. I remember that Guo Gong seemed to say two days ago that his younger brother came to Jinling to join him. Maybe he was arranging for family members? Just as everyone was talking to each other, a panting Guo Lin finally appeared at the door of the workshop. Have you all arrived? ??Guo Lin took a look and found that among the more important people, he was already the last to arrive. He couldn''t help but explain: A relative came to the house. He took half a day off today and just came back from outside. Chang Haonan didn''t have much idea to gossip about this kind of thing. After Guo Lin calmed down his asthma, he announced the start of the test. Prepare for the first round of testing, step wave frequency shifting, jammer starting modulation frequency 1MHz, interval 0.4MHz, interference-to-signal ratio 8dB, 10-segment pulse The ground test does not really use a radar to illuminate, but directly inputs a simulated signal into the system to detect the output. Considering the resolution of the detection equipment, in order to facilitate observation, the frequency of 10Ghz is not really used. In fact, it is equivalent to a basic program debugging process, which mainly detects the basic logic and algorithm functions of software and hardware. The process is not complicated, but it is time-consuming. According to the pre-assigned tasks, several staff members quickly began to adjust the settings of the jammer and signal generator. ?Chang Haonan also walked aside, ready to view the waveform displayed on the oscilloscope screen. At this time, I happened to hear the conversation between another engineer and Guo Lin. How are you going to arrange Xiaoyu? From this tone, the two of them should be relatively familiar with each other. Combined with the fact that someone just mentioned that Guo Lin has a younger brother who came to defect to him, it is not difficult to guess Xiaoyu''s identity. Lets find him a job as a helper first, and well see if theres a more suitable job later. ??Guo Lin sighed softly and replied. "Don''t worry too much. Your brother has such a skill as a carpenter. How can he still worry about not being able to make a living here?" Another person expressed relief: "When this period of busy work is over, I will ask your sister-in-law to go to Nanjing Automobile to inquire about it. They said before that the shortage of workers is severe." Its not a matter of whether we have food to eat or not. Hearing the comfort from his friend, Guo Lin had a wry smile in his tone: "He changed his age when he graduated from junior high school when he was 15 years old. He took over from my father and worked in our cable factory. If you really want to look at his household registration, he is actually my brother. He has never left the factory for 14 or 5 years, and now suddenly After receiving the notice of being laid off, I was afraid that he would not be able to change his mind..." Another helpless story under the tide of the times. ?Chang Haonan suddenly remembered the Lao He family mentioned when his parents said they would arrange a blind date for him during the winter vacation. ??Although he has no memory of the name, the experiences of dual-income families should be generally the same. In fact, even many single-income families cannot afford it. In this day and age, it is definitely not possible to support a large family with just one person''s income. At this moment, with a beeping sound, the test officially began. Everyone then devoted all their attention to the data and equipment in front of them. Oh...the quality of this fake target is very high. ??Xu Yang stood behind Chang Haonan, looking at the signal waveform displayed on the oscilloscope, his tone full of excitement. Yeah, no wonder, ground radar and the radar on our aircraft will be fooled..." Chang Haonan nodded: Seven false targets, 10s, 14s, 18s, 22s, 26s, 30s, 34s, and except for the first one which is slightly weaker, all the signal characteristics are stronger than the real target. I am a radar and I am also confused. ?Chang Haonan recorded all the data, and then quickly issued the order again: Prepare the second segment, piecewise linear function frequency shifting, starting modulation frequency 1.5MHz, interval 0.4MHz, frequency modulation **** 20KHz/s, interference-to-signal ratio 8dB, 4-segment pulse A completely different signal appeared on the oscilloscope. ?Different from the large number of false targets just now, this time, the signal peak of the real target was covered up by a dense multi-segment coverage interference. This is a mode that the original pod does not have, and it works well for some radars whose absolute power is not strong enough. ??Xu Yang lightly shook his fist in the airit was she who came up with the idea of ??joining this mode. Reproduction does not mean copying the original, but improving and developing on the basis of the prototype. The ground testing process ultimately lasted a full day. At each predetermined test frequency, the results were very successful. As for more complex tests, since the microwave anechoic chambers of the 14th Institute are still under construction, the real results can only be seen in the sky. Lao Guo, prepare to fly to Yanliang! ?Chang Haonan recorded the last data on the paper, raised his head and said to Guo Lin next to him. (End of this chapter) Chapter 259 Nice to meet you, Researcher Xu Chapter 259 Nice to meet you, Researcher Xu Okay, Ill get ready right away! ?Perhaps inspired by the great success of the test, Guo Lin''s depression as he came in the morning had long since disappeared. Although the success of the ground test is only equivalent to the first step in a long journey of thousands of miles, it can be regarded as a good start in any case. China has not failed to make attempts to develop electronic warfare aircraft in the past, and has also developed usable models on the IL-14, Tu-4 and H-5 platforms, but overall they have not been successful. On the one hand, these aircraft are basically equipped with simple clutter jammers, which are already unable to cope with the electronic equipment of the 1980s and 1990s. On the other hand, the performance of these platforms themselves is insufficient and the target characteristics are large, making it difficult to fight with other air force forces. The aircraft cooperated, so a few were equipped to verify the tactics, and then nothing happened. Spears and shields always complement each other. The long-term absence of electronic jamming systems has led to a lack of understanding in the field of anti-jamming in China. The final result is that a few EA6Bs used the simplest injection jamming to generate a large number of false targets and were paralyzed. The air defense of almost the entire eastern coastal area is the "94 South China Air Conditions Abnormal Incident". This incident even led our country to consider introducing a complete "border" campaign-level automatic air defense command system from the recently disintegrated Russia, which could integrate almost all weapons belonging to the homeland defense air force, but in the end the cost was too high. And give up. After that, although the army strengthened training on countering electronic interference, it was difficult for a clever woman to make a meal without rice. Without upgrading the equipment system, what could be done was really limited. In the following two years of frequent confrontations, although there was no There will be big chaos like that in 1994, but it will still be difficult to withstand. Just as the previous failure of the J-7 to intercept the E8A was a shame for the aviation industry system, for the electronic technology that produces almost all the main radars of our military, the feeling of being repeatedly played with is definitely not good. They have been looking forward to a turnaround for many years. This time, China will be able to directly obtain electronic warfare equipment that matches the world''s leading level. It can not only cause reciprocal deterrence to the other party. More importantly, after having your own spear, the next step is to forge a stronger shield. The work efficiency of the Flight Test Institute is still high enough. ?That evening, Guo Lin, who called to inquire, received a reply stating that they were ready to send a Y-8 and a Tu-154 to Dajiaochang Airport. As soon as the 14th Institute of Electrical Engineering completed preparations, they would be notified of their departure. I found that the efficiency of the aviation system this year is much higher than before... ?An engineer who was obviously more senior said this after hearing the news: I remember that in the past, this kind of test could be arranged for us two weeks later, which was considered fast. When we followed Director Ben to test the 1471 radar, we had to wait for more than a month before it was arranged. After all, the flight test institute is not a department dedicated to serving a certain unit. In addition, electronic equipment testing involves different system coordination issues compared to general test flight, so it is rarely so efficient. After all, there are regular workers involved, so its normal for them to pay more attention to it... ??Guo Lin glanced at Chang Haonan sitting next to him with a grateful face. A burst of applause followed. Ahem Chang Haonan was confused by the sudden compliment, so he had to explain: This matter although it has something to do with me, its not what you think Since the beginning of this year, the Science and Technology Commission has been trying to implement a platform for direct communication and information transfer between different systems. In the past, for work like this that required the cooperation of our aviation and electronic systems, each piece had to be done separately. Processing and reporting will naturally be troublesome. Now major companies have established teams specifically to coordinate this type of work, so the efficiency has become higher. " This matter was discussed by Chang Haonan and Ding Gaoheng after the Seiko Plan was officially established. The original intention at that time was actually to say that at a higher level, such as the Science and Industry Commission system and the Ministry of Machinery Industry, such a set of mechanisms should be established. Communicate projects, requirements and research results to avoid the problem of one side being anxious due to lack of a certain technology, and the other side having developed related technology but not knowing where to apply it. ??But what Chang Haonan did not expect at the time was that the divisions in this era did not only exist at the ministry level, but also the situation was similar between different enterprises under a ministry. Thats why we made this attempt. The effect seems to be pretty good so far. Marketization is indeed a good thing. Many things that were difficult to coordinate in the past have become much smoother when contracts and transactions are directly put on the table. ?According to the popular saying in his previous life, Chang Haonan can be regarded as implementing a wave of changes "above the neck"... Anyway, thanks to Chang Gong, we will immediately contact the 38th Institute to see when their test platform will be free of flight time... Obviously Guo Lin still doesnt know that Chang Haonan has reached a deal with Wang Xiaomo. "No need to contact you." The latter waved his hand and glanced at the project team members sitting around the conference table: "I have communicated with Academician Wang before that the 38th Institute will let us jump in and use the No. 713 aircraft. Anyway, our test does not require modifications to the aircraft itself like radar testing, so now as long as everyone here has nothing to do, We can fly to Yanliang at any time for matters handled in Jinling." Hearing this, Guo Lin looked at Chang Haonan with completely overjoyed eyes Shocked, how many things do I still dont know? Its not too late, well set off tomorrow! ??Guo Lin is actually also impatient, but due to the professional requirements of an engineer, it is difficult to see it at ordinary times. As for preparing for a business trip Its funny, engineers from the 14th institute travel on business for an average of about 200 days a year. They have long been used to it and dont need to prepare at all. UhLao Guo, whats going on at home After the meeting, the engineer who had chatted with Guo Lin during the day turned sideways and asked in a low voice that only a few people nearby could hear. "It''s okay. I''ve already rented a house for him on the east side of Dazhong Bridge. I''ll just wait until he has stabilized his job for a while before bringing my younger siblings over from his hometown. He''s almost 30 years old, so I don''t need to worry about that much." ?Guo Lin shook his head and said there was no need to worry. ?For Chang Haonan, going to Haojing, Shengjing or Rongcheng now can''t be called a business trip, it''s just going home. ?These three places even have special long-term residences for him. So when the Tu-154 that Chang Haonan and others took landed at Yanliang Airport in the evening of the next day, he planned to go back to rest directly after getting off the plane to recharge for the next day''s test. But he found a somewhat familiar figure among the people picking him up at the airport. Senior sister? Chang Haonan still didnt know about Yao Mengnas decision to stay in Haojing, so he was a little surprised and allowed the other party to give him a gentle hug: Shouldnt you go back to the capital? No, I applied to the teacher to stay here and help 603 Research Institute and 172 Factory improve some existing models. The latter took a small step back and replied. Existing models...have you already started to modify the JH-7? ?There are not many models that 603 can modify these days, so Chang Haonan naturally guessed the correct answer easily. But this improved project was obviously established several years earlier than in history. Thats right, but because of the problem with Turbofan 9, we are just pulling out two old aircraft for modification testing, which should be completed soon. ?Yao Mengna said and looked behind Chang Haonan. Another woman was walking up the gangway. This should be Researcher Xu? Xu Yang, who had just stepped forward, was stopped. He had not yet realized why the person in front of him, whom he had never met before, recognized him. Hello, Im Xu Yang. ?She hesitantly stretched out her hand and shook it. "Nice to meet you." Yao Mengna said with a smile. (End of this chapter) Chapter 260 JH 7MLU? Chapter 260 JH-7MLU? Well, nice to meet you too, but I dont know what to call you yet Even though the other partys tone and expression were very cordial, Xu Yang still felt an inexplicable chill all over his body. Perhaps I have gotten used to the weather in Jinling during this period. The temperature here in Haojing is a bit low. It seems that I will need to wear more clothes tomorrow..." She could only tell herself this in her heart. Yao Mengna is Chang Haonans senior sister. When we were working in Shengjing, we heard him mention you before, so I have always wanted to see the abilities of my senior. Yao Mengna still maintained her decent smile when introducing herself. It wouldnt hurt to meet him, but this...Dr. Yao, it seems he is not in charge of the same project as us..." Xu Yang was keenly aware that the other party had a slight hostility towards him. Although he didn''t know where it came from, he still gave a calm reply almost relying on intuition. Mainly because the title "senior" sounds a bit harsh for no reason. ?She is obviously less than 30 years old, but when she is called like this, she sounds like she is seventy or eighty... Chang Haonan, who was standing aside, thought that the two of them were familiar at first, but as he looked at them, he realized that something was not right about the atmosphere. As for what was wrong, he couldn''t tell for a while. But he instinctively thought something should be done: Speaking of which, why dont we get in the car first? After all, we still have testing tasks to do tomorrow ?Chang Haonan originally wanted to go to his residence to rest early today, but Yao Mengna took it directly; Junior brother, do you want to take a look at our modification progress? ??If it were left to other people, Jie Feng Washing would definitely have to eat, but Yao Mengna knew Chang Haonan''s character. When you have a lot of work to do, if you invite him to dinner, you will most likely be turned down. But it would definitely not be possible to ask him to go to the assembly shop to see the aircraft. Modification progress? ?Chang Haonans reaction was not at all what Yao Mengna expected: Its only been a little over three weeks since I left Haojing, and you have already started to modify it? ?This is actually a bit of a double standard. After all, he himself has achieved similar efficiency more than once. ?But now that I hear other people say this, it is indeed a bit outrageous if I think about it carefully. Its so **** fast This speed is indeed very good compared to normal, but compared with you, junior brother, it is still a lot behind..." As she spoke, Yao Mengna opened the car door and motioned for Chang Haonan to sit in. Then he followed suit and sat in the back row. This frees up the co-pilot. ?Different from the general situation where the boss is seated in the right back seat, powerful organizations such as the military generally regard the co-pilot as the main seat, because the officer who takes the car out will usually sit here. Xu Yang seemed to know this difference, so he hesitated for a moment, and finally knocked on the car window. Ill go to the guest house with them first, and Ill see you at the test tomorrow. In fact, so far she has only enjoyed the smoothness of working with a genius. ??Although I am also very interested in the aircraft Yao Mengna mentioned, it is not within my professional scope after all. I can only take a look at it, so it is better to have a good rest and have enough energy to deal with tomorrow''s test task. After a brief farewell, the car in which Chang Haonan and Yao Mengna were riding quickly separated from the others and drove towards the final assembly workshop of Factory 172. Soon, a brightly lit factory building came into view, with two huge fighter-bombers parked quietly inside. The JH-7 is actually a very huge aircraft, almost the same size as the Su-27. Compared with the J-8C, which has dual engines and a single vertical tail with the same intake ducts on both sides, it is similar in length, but the overall appearance is more substantial and powerful, especially The two unusually thick splayed rocker landing gears on the left and right have a more murderous feel compared to the latter''s straight strut landing gear installed under the wings. Its just that the two current planes really dont show much murderous intent ?One of them has been almost completely disassembled, leaving only a basic body. Although the other one is more complete, many key parts such as wings have not yet been installed. Chang Haonan could tell almost at a glance that the progress of the latter aircraft was actually faster, because it was already very different from the previously mass-produced JH-7. Have you modified the ability of the JH-7 to receive refueling in the air? He asked, looking at an air refueling pipe on the right side of the nose of the plane. Yes, although the current range is already good, the lift-to-drag ratio of this aircraft is still not very good. Users reported that the range will be severely reduced when combat mounts are installed. ?Yao Mengna explained as she followed Chang Haonan out of the car, and then slammed the door shut: Although we dont have many tankers in total now, after discussing with Mr. Tang, I decided to leave a message to the troops. Obviously, at least during this period of time, she was able to be her own person and chat and laugh directly with the model chief engineer. The two of them walked into the assembly workshop one after the other. As the distance from the plane got closer, Chang Haonan quickly saw more details. The current installation method of this fuel pipe is relatively simple. It is similar to the 9-17 MiG 29SMT. A foldable fuel pipe set is installed directly outside the original skin, forming a relatively obvious bulge. Rather than the more common design that can be completely retracted into the machine head. ??However, it is definitely better than the fixed filling pipe. More importantly, there was no such incident in the timeline before his rebirth. The JH-7 never had the ability to receive fuel in the air from the beginning to the end. Chang Haonan has never even seen the JH-7 after his rebirth, nor has he talked about improvement plans or anything like that. This means that China''s aircraft upgrade project has changed from its previous life without his direct intervention. It also means that his hard work has not been in vain for more than half a year. It has indeed led to the development of a large number of engineering and technical personnel. In addition, the integrated windshield that was originally seen on the JH-7A also appeared in advance, replacing the original three-piece windshield with poor visibility. Considering that during the August 3rd Project, Yao Mengna had already made a similar one. work, so he should indeed be very proficient. Besides the fuel pipe and canopy, are there any other improvements? ??The degree of completion of these two aircraft is really not high, and Chang Haonan can''t see any more clues. "Of course, we are currently planning to upgrade the original 232H radar to enhance its anti-interference capability and add a continuous wave illuminator. The JH-7 is now the only treasure in the Navy''s hands that is second only to the two J-8Cs in terms of performance. Only if you can play semi-active ammunition..." In addition, these two aircraft will also upgrade the 1553B bus and distributed weapons management system, and replace the monochrome LCD display in the cockpit with a color one. For the first time, Yao Mengna felt that she had endless things to say in front of Chang Haonan, and she no longer had to be an almost unilateral listener like in the past. Chang Haonan next to him has been attracted by this last sentence. The data bus means that the aircrafts mounting capabilities can be easily upgraded to become a qualified multi-functional air tactical platform. The compact version of the electronic jamming pod they are about to test will need just such a platform in the future. So is this the template for the new JH-7 model? ?Chang Haonan raised his hand and patted the antenna of the 232H radar. "Of course not. After the Turbofan 9 can be mass-produced, the newly built J-H7A will have more upgrades, including a new model of radar, a four-redundancy flight control system, etc. Now it is just based on the original. The improved model will undergo a technical verification, and if there are no problems, the old aircraft may be gradually upgraded to this standard during the mid-term maintenance. " Yao Mengna replied. So these two aircraft cant be called JH-7A now? Yes, if there must be a different name, then according to the habits of foreign military, it can be called JH-7MLU, Mid-LifeUpgrade, mid-life upgrade. (End of this chapter) Chapter 261 Radar interference, electromagnetic shield! Chapter 261 Radar interference, shield of electromagnetism! While the two were chatting, they had already walked to two wings that were placed on the shelf and had not yet been put back together. Thats right, senior sister. ?Chang Haonan stared at the wing in front of him for a long time, then suddenly turned around: When you modify these two aircraft, remember to enhance the data transmission capabilities of the electrical interfaces on the pylons. After a pause, he added: If the space inside the old wing is really not enough, at least the two racks No. 3/7 should be specially upgraded and connected to the multi-function display in the back seat. Ah, of course there is no problem with this. There is still room for upgrading just two racks. Compared with the previous situation where she was only responsible for the 83rd Project, Yao Mengna is now responsible for a lot more work. She can even be considered to be leading the overall situation together with Tang Changhong. Naturally, she has a much more comprehensive understanding of the modification situation: But if you specifically upgrade the pylon...are there any special ammunition that need to be mounted? In 1997, China''s airborne weapon models were still quite poor. The only precision-guided munition currently used by the JH-7 was the YJ-81 missile with a range of 50km. Due to its poor ability to deal with clutter, it could basically only be used for anti-ship. During launch Previously, there was not much need for data communication with the carrier aircraft. In fact, the YJ-81 can even be launched without target information and try its luck after the terminal radar is turned on. "Ammunition... about the same" Strictly speaking, jamming pods should probably be regarded as equipment, but if we use a more literary term, it is not impossible to regard electromagnetic waves as invisible ammunition: The thing we came here to test this time, if it is built normally, should be able to be installed on the JH-7. I know. Yao Mengna nodded. Senior sister, do you need any technical help? ?Concerning the choice of electronic warfare platform, Chang Haonan couldn''t help but ask. "It''s nothing so far. In fact, the upgrade plan we have decided on is very conservative. It is almost all the things you brought me to do in Shengjing before, so in general it is going well. According to the current plan "Probably next month we will be able to modify these two aircraft and hand them over to the troops for trial use." ?Yao Mengna had a touch of pride on her face. If at the beginning, she chose to stay in Haojing in order not to be thrown too far away by Chang Haonan''s footsteps, then after nearly a month of work, she has begun to have a deep understanding of the two aircraft that were born by her own hands. Some feelings arose. The aerial test of the pod was carried out on the afternoon of the second day when it was cloudy but without rain. The main reason is that there are currently no corresponding transportation and storage standards for the engineering prototype. After it was airlifted to Haojing by a Y8, it needed to be completely inspected, which was delayed for half a day. After lunch, Chang Haonan finally saw the rather mysterious No. 713 electronic equipment verification platform at the end of the tarmac. At this time, its nose is carrying a black radome. Judging from its appearance, it should be the 1473 radar used in testing the J-10. It is also the model planned to be replaced by the JH-7A in the future. ?However, Chang Haonan''s pods do not need to occupy the most precious nose space. The small pod can be hung under the wing, and the large pod can be hung under the belly of the fuselage. Chang Haonan, who had just finished the ground inspection, and other people were not far away watching the ground crew install the two pods on the Y-7. Compared with the test flight of the aircraft itself, this kind of electronic platform test basically does not pose much risk to the pilots, so the overall atmosphere is relatively relaxed. The three pilots shook hands with Chang Haonan and Guo Lin in turn, and then turned to board the plane. With the roar of the engine, No. 713 left the runway trailing two faint lines of black smoke and gradually disappeared into the clouds. Normally, for this kind of test, it is best to take off several fighter jets as jammed targets, so that the height and location of the test can be basically unrestricted to avoid affecting residents or other equipment on the ground. But these days, there are only a few aircraft in China with beyond-visual-range combat capabilities, and it is definitely impossible to lend them out casually. In addition, Chang Haonan and the others have a very tight schedule, so in the end they had to use the name of joint air-ground training. Let the artillery sighting radar of a nearby anti-aircraft artillery regiment serve as the imaginary enemy of the "Blue Army". After climbing to a sufficient altitude and entering level flight, aircraft No. 713 quickly turned its nose and flew northeast to the scheduled test zone in Hongnong City. The anti-aircraft artillery regiment of the 139th Division of the 47th Army is stationed there. At the same time, Shen Yan, the commander of the anti-aircraft artillery regiment, was standing behind the command position slightly nervously, looking at the 18 Type 74 double 37mm anti-aircraft guns arranged in a semi-circle on the preset position in front of him. ??This is equipment that other similar units in the army can''t wait for. Although the appearance is similar to the Type 65 Double 37 in the past, it has added a 1035 analog commander, a two-meter rangefinder and a 10-type gun sighting radar. The anti-aircraft gun itself is also equipped with a servo motor, which can automatically acquire and solve the problem. Target Zhuyuan does not need to rely on human power to drive the height machine and steering machine. Other than having to be towed by a truck and spending time setting up positions, it seems that there is not much difference from those modern fully automatic anti-aircraft artillery systems. ??Moreover, Shen Yan also specially sent an anti-aircraft artillery battalion with the best training results in his hands. In fact, he himself was the battalion commander of this battalion in the past. Because he led the team to the top spot in a military district-level competition, he was promoted to deputy regimental commander and eventually to regimental commander. Although he had long known that the actual purpose of the so-called joint training was to test the flight test academy, the opponent was not the Air Force that he had always expected to compete head-on, but whatever. ??This era''s army is really tough. The anti-aircraft artillery regiment rarely even has the opportunity to practice target drones, and most of the time they can only practice in the air. Now that there are live people flying real planes to practice with them, Shen Yan simply couldn''t ask for it. Anyway, the fighting spirit of the commanders and fighters at all levels has been aroused, and he has promised that if the confrontation exercise is successful, the whole regiment will be given extra meals at noon tomorrow. As the estimated exercise time approaches, Shen Yan raises his hand to look at his watch more and more frequently, and from time to time he also glances at the radar screen not far away. Obviously, he was also a little nervous. On the other hand, the working group of the Flight Test Institute who had been standing behind him had a stable mentality. They are not soldiers. They are only responsible for faithfully recording everything that happens. They will not and cannot have Shen Yan''s competitive spirit. Report, radar found targets, number 6, direction 34, distance 20km, altitude 1000, speed 350! ??The radar operators loud report broke the silence in the command post. Originally, due to the existence of the automated command system, this step is not needed. ?However, considering that there were still flight test institute personnel on site who might not be able to understand the radar data, I still reported it. 6? Shen Yan''s expression froze and he turned back to look at the engineers in casual clothes. The leader shook his head and said that our flight test institute did not have that many aircraft of the same type, and only one took off. TMD Hearing this answer, Shen Yan knew that his radar was interfered with. The operator skillfully followed the standard procedure, but it had no effect. The target is only 14 kilometers away from the position. Calculate all the elements for all targets, and let the rangefinder prepare for manual processing. Even if you are blind today, you will still be blinded! ?Shen Yan took off the hat on his head and held it in his hand. He picked up the walkie-talkie with his other hand and ordered. As a commander who has been rated as excellent by the entire army, he naturally has a set of things that he can adapt to changes, rather than a rookie who is at a loss without technical equipment. ??The originally silent position suddenly became heated. Soon, several targets on the radar flew into the extreme shooting range of the anti-aircraft gun. It is a simulated shooting anyway, there is no need to consider the damage efficiency, as long as the theoretical range is sufficient, you can shoot. The antiaircraft gun positions were organized in groups of three, and several rounds of firing were conducted under the command of radar. The smooth cooperation between staff in different positions made Shen Yan''s face finally look better. But the good times did not last long, and observers reported that they did not see any targets flying over. Report to the leader, the radar shows that the target aircraft is in the air! ??The radar operator''s voice sounded again. Obviously, all the six he caught just now were false targets. Quick, get ready to reload! ?However, as soon as he finished speaking, a small black spot appeared from the horizon in the 34th direction, and continued to grow in size in everyone''s field of vision. ??The observer with a rangefinder in his hand quickly reported the type of aircraft. A Y-7 has a speed of about 350 and a slant range of about 3km. ?At this time, Shen Yan''s face turned completely pale ???If this was on the battlefield, and what flew over was not a slow transport plane but an attack plane, his battalion-level air defense position would probably be wiped out. (End of this chapter) Chapter 262 Win or lose, find problems Chapter 262 Victory and defeat, problems discovered ??The staff of the Flight Test Institute behind Shen Yan did not show any particular signs of adding fuel to the fire. They just immersed themselves in recording all the data and situations just now. ?Of course, this behavior itself has caused considerable harm to the formers heart. But the testing process is not over yet, so no matter how uncomfortable Shen Yan feels, he still has to command the troops to complete the next tasks as planned. As for technical and tactical issues, we can only wait until the end of today. ??Moreover, judging from the skilled performance of the battalion commanders and fighters under his command just now, there may not necessarily be no chance of a comeback in the next few tests. There are definitely limits to the capabilities of the radar, but whether the test is successful or not is a matter for the aviation industry. As the commander of the anti-aircraft artillery regiment, Shen Yan is only thinking about how to put the simulated " "Enemy plane" was shot down. ??While the plane was circling around, he lowered his head and thought for a while, then picked up the walkie-talkie again and called the battalion commander who was sweating on the position: Let me tell you, let the gunner stay in the fighting position the whole time this time. If there are still 6 false targets in the first round, then dont fire until the real targets appear later! ??The battalion commander, who was already a little panicked, heard the regimental commander''s calm voice coming from the intercom, and his mentality instantly calmed down a lot. He began to re-direct the troops to reload and reset the artillery, waiting for the next round of testing to begin. In fact, Shen Yan is suspected of taking advantage of a test loophole by doing this. On the one hand, he has already experienced electromagnetic interference and knows what kind of situation he is about to face. On the other hand, in order to ensure safety, the Y-7 aircraft cannot simulate the real situation. The attack aircraft''s low-altitude and high-speed penetration could only fly over slowly at mid-altitude, which also gave Bisuan Zhuyuan and manual cannons enough time. ??If the target is a Q-5 or JH-7, in fact, even with radar assistance, it is even difficult to make the muzzle keep up with the approaching angular speed of the target by manpower alone. ?Several engineers from the flight test institute saw all this, but did not interfere with Shen Yan''s command. After all, they are not really a blue force engaged in confrontation. They are only responsible for recording the situation of the radar when facing interference. Regardless of whether the latter''s tricks are successful or not, they will not affect the test results. About ten minutes later, the transport plane, which was a little clumsy because it had two pods attached, returned to its "attack route". Everything seemed to be a repeat of the last time, except this time there were many more soldiers operating anti-aircraft guns on the position. Report, radar found target! The radar operator reported loudly again. A smile finally appeared on Shen Yan''s face. ??If the other party still uses his old tricks, he is sure to earn back his face this time. ?However, two seconds passed, but he still did not hear the voice reporting specific information about the target. Whats going on? ?Shen Yan, whose heart sank, turned around, strode behind the radar operator, and looked at the circular screen in front of him. Why is this so? What appeared in front of him was not the same number of fake targets as last time, but abnormal signals spread across an entire long strip of area! Try it and see if it can be locked? Shen Yan, who was relatively confident just now, was completely at his wits end this time. Although he did not shoot out all the ammunition at the false target like the first time, the direction of the entire position was now in chaos on the radar screen, and he could not even determine the specific direction of the target''s attack. Even in air defense operations during World War II, advance warning of the approximate direction, altitude, and time of enemy aircraft''s attack was needed. National radars with good conditions can also have full-time air defense lookouts who can conduct reconnaissance several kilometers away from the position, or even in the middle of the enemy aircraft route, in order to leave enough reaction time for the air defense forces. If the anti-aircraft gun observer had to wait until the anti-aircraft gun observer could see the target with his naked eyes before reacting, it would be too late. Just like it is now. As expected, the Y-7 appeared in a different direction than last time. And the height is even lower than last time. So much so that a rangefinder looking in one direction wouldn''t even be able to spot it in the first place. ??When the 18 anti-aircraft guns adjusted their direction and aimed their muzzles at the target, the opponent had almost flown over the position. Obviously, the best outcome is for both parties to perish together. But even if Shen Yan used the lowest standard in his heart to judge, he couldn''t tell himself that this was a successful defense. You must know that the division-affiliated anti-aircraft artillery regiment is responsible for the air defense mission of an entire division-level position. Only one battalion can be deployed in each direction. If the opponent replaces one of his battalion-level positions with one aircraft, it means that the whole The division faced follow-up air attacks in this direction with its doors wide open. TMD! Shen Yan punched the table next to him. ?At the same time, Chang Haonan, who is in Yanliang, is also following up on the trends at the test site. Although specific data needs to be analyzed after all tests are completed, the basic situation can still be obtained in real time through the phone. In fact, the two simulated attacks of aircraft No. 713 used two frequency-shifting interference modes of the pod: advanced false target interference and multi-coverage interference. Of course, the pod can also combine these two modes to generate false targets while using coverage signals to shield the real targets. But from the effect point of view, there is no need to repeat it. The range of the Y7 is not outstanding, not to mention that it also carries two pods, one large and one small. When the report of the successful test came out on the phone, the atmosphere in the entire conference room became heated. ?This at least proves that with a leading architecture, it is possible to replace high-performance components that are temporarily unavailable with multiple components with lower performance. The idea is no problem. The test of the No. 1 pod is here first, and the next round will start testing the effect of the No. 2 pod! Chang Haonan suppressed the same excitement and ordered to the phone. ? Pod No. 2 is the redesigned, more compact pod that can be mounted by most tactical aircraft. This is the product that Chang Haonan really has high hopes for. Unlike the situation on Yan Liang''s side, everyone on Hongnong''s anti-aircraft artillery regiment position, including regiment leader Shen Yan, became depressed. Even though I knew that there were still two sets of tests to be completed, after exhausting all methods and failing to catch the target, the previous fighting spirit inevitably began to dissipate. From now on, its just a matter of cooperating with the Flight Test Institute to complete the test tasks step by step. Even the radar operators voice was much quieter when he reported finding the false target again. However, just when Shen Yan thought he was about to repeat the plot of the first test, the situation suddenly changed. Captain, the interference has suddenly become weaker! Whats going on? Shen Yan was instantly refreshed. The echo intensity of the false target has become weaker, and I can distinguish the real target from it! The operator replied while adjusting the equipment quickly. Quick, all attention, automatic fire mode, ready! Yun-7 is, after all, a target with a large radar reflection area and almost no maneuverability. Although the interference effect has not completely disappeared, the affected radar has still completed locking at a distance of about 5km. Target in range! Fire! Two rounds of simulated shooting were completed quickly. According to the general exercise settings, this was considered a complete shootdown. In the fourth round of testing that followed, the situation was almost the same. Although the multi-coverage interference initially successfully obscured the aircraft''s position, it was still locked at a distance of approximately 6 kilometers. Although this distance seems very close, you must know that the Aim 10 is not a very good radar that can be caught at a distance of 5-6 kilometers. So when facing more advanced and more powerful models, The situation is obviously not optimistic. ?At this time, the atmosphere on both sides turned around. Captain, do we think we have won half the battle? ??The radar operator took off his earphones and looked at Shen Yan, who had just taken turns hugging the regiment command team. The latter looked back: It counts, it counts, they say we are anti-aircraft defense and nine out of ten air defenses. Now we have four defenses and only two air defenses. It counts! Ahemthen tomorrow Inform the cooking squads of each company to prepare to kill pigs tomorrow and provide extra meals for the whole group! "ah?" The face of the Secretary General of the Regiment Canteen, which had been beaming just now, froze for a moment, and then he showed a pained expression... On the other side, Chang Haonan, who had just learned that the interference effect of No. 2 pod was not satisfactory, fell into deep thought. The No. 1 pod tested before was the large pod that was copied 1:1 according to the captured model, and everything was normal. ? Pod No. 2 is completely the same from an equipment point of view, but its performance is somewhat inferior. Unit No. 713 has specially strengthened its power supply capacity for electronic equipment testing. It is definitely not caused by insufficient energy... Hiss... Do we really have to be cautious when modifying the original design? (End of this chapter) Chapter 263 Adults choose everything they want (2-in-1) Chapter 263 Adults choose everything (two in one) For the engineers of Institute 14, the current situation is generally a mixed blessing. The success of Pod No. 1 can be regarded as a guarantee, at least it allows everyone to confirm that they are going in the right direction. So now the No. 2 pod faces at most an engineering design problem, and it may even be a minor problem with the manufacturing or assembly process. This will have to wait until the test data and the radar data from the anti-aircraft artillery regiment are returned before slowly checking it. ?However, for Chang Haonan, achieving this step is obviously not enough. When he first arrived at the 14th Institute, he used the system to analyze the working principle of the captured pod, so this step was definitely not wrong, and it was the scaled-down version of the No. 2 pod that truly represented his own work. So no matter what, he still hopes to solve the problem quickly. Approximately 20 minutes later, aircraft No. 713, which had completed the test, landed steadily on the runway of Yanliang Airport. Soon, the two pods, one large and one small, were dismantled by ground crews and moved to a workshop specially arranged for No. 14 for testing. Subsequently, Guo Lin and others began to disassemble the pod and check whether there were any problems with the component installation, while Chang Haonan and Xu Yang removed the test equipment on the aircraft. It can faithfully record the working conditions of various airborne equipment during the entire flight just now. In the first two rounds of testing, that is, when pod No. 1 was activated for interference, everything was normal throughout the process. But when the No. 2 pod was opened, the situation became very strange. ?At the beginning, that is, when the pod has not captured the radar waves directed at itself, the data is still normal. This shows that there is no problem in the power-on step. However, when the aircraft entered the detection range of the artillery sighting radar and the jamming pod actually entered working status, an abnormality occurred at the signal receiving end. This is true for both the third and fourth rounds of testing. ??And as the distance to the radar body approaches, or as the energy emitted by the jammer increases, the signals recorded by the pod''s receiving end become increasingly chaotic. Chang Bo. Just as Chang Haonan frowned and stared at the signal map on the screen, Xu Yang''s voice suddenly sounded from behind him: Enlarge the signal of the last minute of the receiver and take a look. Chang Haonans content about signals and control was actually slowly taught by himself after he was reborn. ?Of course, thanks to the knowledge the system has given him in several related projects, he is able to handle general application problems with ease. However, compared with people like Xu Yang who have a professional background, they are still slightly lacking in basic skills training. ?Just like now, Chang Haonan may not be able to react faster when he needs to find the real problematic part from a bunch of complicated lines. ?But one advantage of him is that he can listen to what others say. So I immediately followed Xu Yangs request to enlarge and process the last minute records of the last two rounds of testing. Look here. Xu Yang pointed at one of the curves: The amplitude of this curve is very low at the beginning and is almost invisible, but it will increase every cycle from its appearance, and in the end it will even be about the same intensity as the gun sight radar wave received by the receiver. As soon as she said it in such a concise manner, Chang Haonan immediately grasped the key point: So it interferes with the input signal of the entire pod, causing the output signal to be abnormal, and the interference effect on the radar becomes worse..." Wait, this is a self-oscillating signal? Thats right. ?Xu Yang snapped his fingers: So the situation is very clear. The problem is not with the components. We can stop Guo Gong and others from continuing to investigate. ? Chang Haonan slapped his forehead with some annoyance, and then called Guo Lin and others who were busy analyzing the circuit board on the other side. If it is just a simple interference signal, then there are actually countless possible sources. ?For example, some part of the process in DRFM is not good, or there is a problem with the sampling clock of a certain channel during the frequency division multi-channel sampling process, etc. ??But none of these problems can create a positive feedback self-oscillation signal. ??The only possibility is that the isolation between the pod''s transmitting and receiving antennas is not high enough, and the high-power interference signal emitted by the transmitter is coupled from the receiving antenna into the receiver. The people at the 14th Institute also have a professional background. Although if they were asked to find the problem on their own, they would not be able to see it at a glance like Xu Yang, but it is definitely not difficult to understand Chang Haonan''s meaning when there is an explanation. So thats it ??Guo Lin also smoothed his hair in surprise: But we have obviously implemented polarized isolation? ?The so-called polarization isolation means that the transmitting and receiving antennas are arranged in an orthogonal manner, with one vertically polarized and the other horizontally polarized. Theoretically, there will be no crosstalk between the signals between the two antennas. ?However, because it is impossible to achieve truly perfect orthogonal polarization when implemented in engineering, it will still be affected to some extent. This shows that our polarization isolation is not high enough. When the distance between the carrier aircraft and the radar antenna approaches a certain level, the power of the transmitter will burn through the polarization isolation, affecting the normal operation of the receiving antenna. Haonan put down the mouse in his hand, looked at the No. 1 pod not far away and replied: And I also understand why Raytheon designed the pod to be such a large size "really" Xu Yang, who was the first to raise this question and has been troubled by it, also showed a look of understanding: They couldnt solve the problem of polarization isolation, so they used the simplest and crudest physical isolation method. As long as the distance between my transmitting and receiving antennas is far enough, I wont be afraid of being affected. Now that the problem has been clarified, the next step is to find a solution. ?In fact, the idea is quite logical. After all, there are actually only three commonly used sending and receiving isolation methods. Spatial isolation, polarization isolation and time isolation. The first type is physically impossible due to the size limit of the pod, and the second type cannot be realized due to technical problems. Naturally, the third type is left. So Guo Lin expressed his thoughts: What if the all-receiver-all-transmit mode is abandoned and the time-sharing working logic of transmitting and receiving is adopted, such as full-pulse store-and-forward interference, or short-pulse store-and-forward interference? Xu Yang had naturally thought about this, but she still shook her head resolutely: "Then the advantage of our jammer is gone. The short-pulse storage and forwarding jamming only uses a short section of the radar signal to cycle end-to-end. If forwarded, the false target signal generated will become very wide, and a slightly more advanced radar can easily distinguish true and false targets. " "As for full-pulse store-and-forward jamming, although the target generated is very real, the false target will lag at least one pulse width behind the real target echo. It is okay to deal with some airborne narrow-width radars, but if it is against something like the Patriot, For linear frequency modulation pulse compression radar, if others directly use a width of 60 microseconds or even 100 microseconds, then our false target will be directly behind the real target by 10-15 kilometers, and it will not be able to confuse the enemy at all. " After Xu Yang blocked the last way out, Guo Lin really couldn''t think of any other way. MD, it makes sense for Americans to build such a big thing...its so difficult... ??Guo Lin patted the huge pod No. 1 next to him. ?This guy, which is nearly 10 meters long and about 1 meter in diameter, is a behemoth that cannot be carried by most tactical aircraft. In addition to the MiG 25/31, it is really difficult to find a suitable tactical platform as a carrier for it. The largest equipment mounted on the Su-30 in the previous generation was the BrahMos with a length of 8.4 meters and a diameter of 670mm. The record for the Su-34 is the Kh-47M2 Dagger, which is 7.5 meters long and has a diameter of 1.2 meters. In other words, only Su 34 can barely hang up. But lets not say that China does not have a model corresponding to the Su-34. Even if it does, the sealing of the belly mounting point is too high. The front is blocked by the classic drooping nose of the Flanker family, and the two sides are blocked by two incoming air intakes. The airway is blocked and is not suitable for placing interference pods that require a large amount of receiving and transmitting electromagnetic waves. How about we change our thinking? After a few minutes of silence, someone next to me finally suggested: Perhaps there is no need to design this thing as a pod. "I heard that the institute''s research progress on the active and passive SAR radar is also pretty good. Can we consider combining the electronic jamming and electronic reconnaissance functions into one, integrating them into the Y-8 or H-6, and building one directly? When the integrated electronic support aircraft comes out, the Air Force will definitely like it." ?This model is very close in concept to the later Gaoxin 12/Yun 9DZ electronic warfare aircraft. As he said, the Air Force really likes it. Although it is difficult for this kind of aircraft to follow the formation of tactical aircraft to fight together and destroy the opponent''s air defense network with physical means like the EA6B or EA18G, it can at least provide cover in a relatively safe place. It is better than simply relying on low-altitude penetration to try your luck. ??Moreover, in non-wartime patrols and confrontations, larger platforms are more capable than Flying Leopards or Flankers. In the previous life, the Chinese Navy and Air Force made very good use of the long airtime advantage of the high-tech series aircraft (the range of the Y8/9 platform is actually not far, but the economic speed is relatively low), and responded by repeatedly allowing the Air Self-Defense Force to take off at super intensity. This method has greatly weakened the combat readiness level of the opponent''s main fighters such as F15J/DJ. ? So that some time before Chang Haonan was reborn, Air Force was already considering using the F2, which was originally designed for ground-to-sea attacks, to conduct air interception missions. That seems to be a good result. Especially now that China urgently needs to deploy naval and air forces in certain directions to declare its presence. But just when some people were moved by this idea, Chang Haonan, who had been turning his back to everyone and calculating something on the computer, suddenly turned around: Of course we need to develop integrated electronic support aircraft. But tactical electronic warfare attack aircraft cannot be just abandoned. Children only make choices, adults only say I want them all. But Chang Gong, the self-interference problem after the pod size is reduced is difficult to deal with..." Someone whispered. In fact, Chang Haonan just perfected the inspiration that flashed through his mind on the computer, and then used the system to test whether it could form a closed loop. ??The fact that he has not received systematic professional training is his disadvantage, but it is also his advantage. Compared to Guo Lin and others, Chang Haonan''s thinking set is obviously much less. The final answers are all feasible. ? Its just that this time he did not continue to build a new project through the system. Instead, he decisively chose the glorious free prostitution after confirming that the idea was okay. ?If possible, Chang Haonan still hopes that this matter can be completed by "himself" in the true sense. It is not just for the challenge, but also to exercise your own abilities, especially theoretical experience. He discovered a long time ago that when completing tasks of similar difficulty, the scientific research points obtained without using the system are not much different than using the system, but the ability value and experience obtained are completely different. ?This is easy to explain. After all, the knowledge I have gained bit by bit is definitely more solid than the knowledge gained directly from the system. After his rebirth, his engineering experience and management abilities have made great progress, but although the [theoretical level] has also gained some experience points, it still remains at the LV2 level. Of course, there is the factor that upgrading from LV2 to LV3 requires up to 10,000 experience points, but in any case, as the level of the projects he participates in becomes higher and higher and the content becomes more and more complex, Chang Haonan has begun to feel that the theoretical level of LV2 is somewhat beyond his capabilities. . ?For example, the multi-physics simulation modeling software mentioned when I chatted with Yan Zhongcheng at the Three Doors Celebration Banquet. He thought about it for a long time, and also started to build some theories in his spare time, but without exception, he failed to form a complete and feasible idea. So it is necessary to "brush" some theoretical level experience points. ?But just when Chang Haonan was about to speak, a younger engineer suddenly took over the conversation: Actually, I think we should consider the pod and aircraft platform as a whole. ??The former almost choked as the words were blocked in his mouth, but he still motioned for the other person to continue speaking. "Our current idea is to hang two pods with the same function on the aircraft to superimpose the interference power. But in fact, this is not necessarily necessary. It can be done... For example, on the left side, the pod is only responsible for receiving the signal illuminated by the radar. , then processed by the aircrafts computer, and then the pod on the right is responsible for transmitting the interference signal..." "In fact, the entire aircraft is designed as a flying pod. In this way, even an aircraft with a relatively small wingspan like the J-8C is almost 9 meters long, and there is an entire fuselage in the middle as a shielding isolation. It is completely OK. Meet spatial isolation requirements. Hey guys, open your mind. ??If the atmosphere at the scene was not quite serious, Chang Haonan would even want to applaud. ?The other party''s words reminded him that it was very likely that in the past, when the electronic warfare aircraft of the United States and the Soviet Union faced similar situations, they used similar ideas to avoid the self-interference problem that occurred in simultaneous transmitting and receiving jammers. In addition to poor flexibility (an aircraft must be significantly modified, the two pods hanging on an ordinary aircraft are completely useless), this idea can only interfere with an angle of approximately 45-60 on one side of the aircraft fuselage ( The jamming signals of most jammers are effective in an arc-shaped area of ??90-120 straight ahead), so apart from the strict requirements on heading, it is not a big problem. Its actually a pretty feasible solution ??If it weren''t for the fact that Chang Haonan already had a better solution in his mind. Ahem...the problem of self-interference is indeed difficult to deal with, but it may not be insurmountable. (End of this chapter) Chapter 264 Intermittent sampling successive loop forwarding interference Chapter 264 Intermittent sampling and successive loop forwarding interference Everyones attention was once again drawn to Chang Haonan. Changgong, you mean... ??The engineer who just proposed to design different functions for the two pods and then divide the work and collaborate also looked over. He really felt that his plan was quite perfect. ?Although it can be regarded as opportunistic in a certain sense, it is at least opportunistic with a relatively high technical level. I think it is feasible to let the receiving and transmitting antennas work in a time-sharing manner just mentioned by Gong Guo. Chang Haonans words made Xu Yangs eyes widen. ?That expression basically says "I read a lot, you can''t fool me." ?But he went on to say: "However, the two traditional methods, whether full pulse or short pulse, work based on a time width of the captured radar signal. Even the latter only uses a small section of the radar signal to perform head and tail analysis. For consecutive cyclic forwarding, a new receive-calculate-send process will not be started until the next time interval. But we can use the radar to transmit a signal with half the pulse width as an interference signal while keeping the overall structure of the current hardware unchanged. Half width? ?This slightly surprising proposal initially caused some moderate ripples among the crowd. ?However, some people soon realized that this approach seems to be feasible in theory. Especially for chirped pulse compression radars, which are increasingly common. ?However, even in the United States, electronic warfare is still in the barbaric stage of development, and I have never heard of anyone systematically demonstrating this. "However, if we still use the previous method of sampling first, storing the signal and then waiting for half a cycle before forwarding, then it will only change the lag distance of the false signal from 10-15km to 5-7.5km. This distance is suitable for both radar and radar. Its not deceptive to the operator, and it doesnt function as a cover for the real target. The one who spoke was still the engineer from before, and he obviously still wanted to struggle with his plan. You are right, so I choose not to go through this storage process. ?This statement is even more shocking, because a significant advantage of digital jammers based on DRFM compared to jammers that use traveling wave tubes to achieve phase modulation and frequency shifting is the ability to store frequencies. Of course, strictly speaking, it does not go through a complete storage process. ?Chang Haonan revised his statement again. ??Guo Lin, who was already familiar with this scene, immediately took out a pen and paper from the briefcase he carried with him and handed it over. He knows that what he should do at this time is to watch the big man''s performance and see what he can learn from it. If you have a chance, you can be a compliment. ?Chang Haonan also habitually took it directly and started to draw the schematic diagram. ??However, the content this time is relatively simple, just a simple coordinate axis. "My idea is that after the receiver intercepts a large time-width radar signal, it only samples a small section of the signal with high fidelity and processes it immediately, and then forwards it to the transmitter, and then samples the second section and processes it for forwarding. A period of time, and so on, the sampling and forwarding work alternately until the end of the large-width signal. "The jammer''s receiver and transmitter work in time-sharing within the entire pulse width, which can perfectly achieve time isolation, and since each sampling time and forwarding time are the same, it can capture exactly half of the radar''s transmitted pulse, achieving what I just said half-width signal interference. This is the benefit of not having a fixed mindset. Compared with the sampling half-cycle-forwarding half-cycle model, Chang Haonan''s proposal actually only shortens the cycle of this process, but the effect of generating false targets is very different from the former. Let alone operating in full cycle units. ?But of course this little cleverness is not all. The real core technology lies behind: "In addition, the processing algorithm here cannot continue to use simple direct forwarding methods, which will only generate a main and false target that is exactly the same as the real target and 2-3 realistic fake targets that have the value of confusing. The rest is It has no real value." But if we use repeated forwarding or circular forwarding in the interference algorithm..." (You will not be interested in these two algorithms) "In this way, a large number of realistic false targets with strong amplitude can be generated within 2-10 microseconds before and after the real target. This form is very suitable for accompanying electronic warfare aircraft for team jamming or tactical aircraft for self-defense jamming. Specifically, The false target generation characteristics can also be adjusted to suit different combat environments by changing processing parameters in the pod control software. Chang Haonan put down the dull pencil in his hand and looked up at the crowd. Hmm In this case, we need to replace it with a new FPGA, but other than that it seems that everything can be done based on the original circuit. After hearing the idea of ??"intermittent sampling and successive loop forwarding interference", Xu Yang almost immediately thought of the key points for improvement. "In addition, it is best to modify the antenna structure and replace it with an Archimedean spiral antenna. The two arms are fed with equal amplitude and anti-phase. This way, bidirectional circularly polarized radiation can be obtained in a wide frequency band, and the input of the antenna within a wide frequency band can be obtained. The impedance remains unchanged. Chang Haonan continued to add. "Understood." Guo Lin next to him had already written down several pages of notebooks. Although his reaction was slower than that of Xu Yang, he was still an engineer with formal training and had already begun to think about how to minimize the impact on the engineering design of the pod. Modifications to complete this prototype upgrade: "The replacement of the antenna and FPGA is not complicated in operation. I can even do it manually. I can send these requirements back to Jinling and have the corresponding components built and sent over. We can replace them on site. As for the middle ones, In a few days, we can focus on testing the No. 1 pod. What Guo Lin proposed is basically the most compact plan in terms of time. ? There is no way, time waits for no one, and after all, Unit 713 was borrowed from the 38th Institute, so it is not easy to keep it and not return it to others, so every day is faster. ?Everyone quickly reached a consensus and continued the experiment according to the above plan. The No. 1 pod is not without value. Although the algorithm proposed by Chang Haonan is very clever, in the end it is still a compromise. If we really want to talk about actual performance, it cannot be achieved when the component specifications are consistent. It is comparable to the former which achieves transmission and reception isolation by increasing the spatial distance and can work in all-receiver and all-transmit mode. Sometimes, big is really good. So on the integrated electronic warfare aircraft of the Y-8 platform where space is not tight, there is no need to use the intermittent sampling scheme. "In addition, I went to Factory 172 last night to see that they happened to have a JH-7 that is about to complete its mid-life upgrade. After our No. 2 pod is tested on the No. 713 aircraft, it can be directly installed on the Flying Leopard. On the platform, lets take a look at the actual effects of the team interference mode and the self-defense interference mode. After all, relying on a Y-7 simulated attack aircraft is indeed too outrageous. After the solution has been come up, the atmosphere in the entire meeting room is no longer as heavy as it was at the beginning. If I want to use the JH-7 for testing again, I feel like I have to find another brother unit to cooperate. An engineer said in a joking tone: "I just heard from the people at the Flight Test Institute who went to the 139th Division Anti-aircraft Artillery Regiment to test that their regimental commander suffered a considerable blow after the first two rounds of tests, and our No. 2 pod was not effective until the second half. It just calmed down a little bit. ?There was a burst of cheerful laughter. You really cant take advantage of Big Brother in the Army. Chang Haonan also smiled and waved his hand: And this time we are in a hurry for testing and cannot contact other troops. The artillery sight radar is not a particularly good imaginary target. Next time we will try to find an air defense missile regiment of the Air Force to try the effect! Actually, its not that I dont want to write a few more words (an entire formula without spaces only counts as 1 character, and theres actually no way to quantify the number of words). The main reason is that after the revision, Qidian cannot recognize some special symbols and Greek letters, resulting in all the garbled characters and characters being sent out. question mark (End of this chapter) Chapter 265 Chkalov aircraft factory Chapter 265 Chkalov Aircraft Factory ?At the same time that Chang Haonan and the engineers from the 14th Institute of Electrical Engineering were busy designing the new FPGA required for the No. 2 pod, they were preparing to conduct ground input and output tests again. Three time zones away, Tashkent, an oasis city located in the desert area of ??central Eurasia, is preparing to welcome a group of somewhat special guests A high-level delegation from China for arms purchase negotiations. ?Of course, there is nothing attractive about Uzbekistan itself. However, the Chkalov Aviation Production Complex, which is connected to the Ilyushin Aviation Group, is located here. At the peak of Big Brother, it could produce more than 70 large transport aircraft every year, as well as a larger number of small and medium-sized transport aircraft or passenger aircraft. . ? Its just that now, the factory has not received any decent new orders for nearly two years. ? Even several aircraft that had been built before were parked alone in the assembly workshop because no one was finishing the work. ?In order to retain the idea of ??reselling these aircraft, the factory even has to regularly spend material and financial resources to maintain them. In fact, it is almost time to untie the pot. Including the Ilyushin Group itself, the situation is already in danger. ?After the last Xiangzhou Air Show, Mikhail Pogolans proposal to establish a company specifically responsible for the foreign trade of aviation equipment quickly gained unanimous approval among several major Russian aviation industry companies. As a result, in January 1997, United Aviation Technology Export Co., Ltd. of the Russian Federation was formally established. ?Among them, the ones with the most say are naturally the Sukhoi Group, which initiated this matter, and the Miri Moscow Helicopter Factory, which has made a fortune in recent years. ??The first thing Ilyushin Group did after all the dust settled was to quickly invite a Chinese delegation to visit the Chkalov factory. ? Sergey Lozko, who visited Xiangzhou last year as the leader of the accompanying security team, and has now been promoted to the director of the groups marketing department, is very aware of the other partys current needs. In the civilian field, judging from its operations in the past six months or so, China is clearly preparing to break away from the US aviation industry system that it has been considering in the past, and instead intends to develop a new set of things on its own. In the military field, they are also facing tremendous pressure from their old rivals across the ocean. They urgently need to change the state of relative armament in the past ten years and quickly build an army with acceptable combat capabilities. ?Furthermore, Chinese people are not the kind of people who can only see everything in front of them. They are more accustomed to long-term calculations, so there will also be demand for some technologies and equipment that "may not be useful for the time being, but will definitely be useful in the future." These are all opportunities for the struggling Ilyushin Group. Lozko is not the only one keeping an eye on this delegation. ?According to the agreement during the assembly of the Aviation Export Company, other major participating members such as Tupolev, Sukhoi, Kamov, and Yakovlev also sent representatives to accompany them, ready to see if there were any opportunities that could be missed. ?In addition, the mayor of Tashkent, Shokaiti Mirziyoyev, also joined the queue to pick up the plane with his own team. ?Before the alliance was disbanded, the Chkalov Aviation Factory was almost the pillar industry of the entire city and even the entire Uzbekistan, and it made a huge contribution to the local economic development. As the number of orders has plummeted in recent years, the local economy has also been directly affected. So the latter also hopes to keep some orders from China locally. Even if not talking about profits and taxes, it can at least solve part of his urgent employment problem. The two people have a common appeal in this regard. But thats where it ends. As a senior executive of the Ilyushin Group, Lozko knows very well that it is impossible to leave aircraft manufacturing capabilities in an uncontrolled place for a long time. In the long run, new production lines must be established in Russia. Today, taking orders is just to maintain The Chkalov plant only has experienced workers and engineers. Once the situation improves and the new plant is built, most of the production capacity and even employees will be taken away. Mirziyoyev, who represents the local forces, certainly does not want to see such a situation. He hopes to keep Ilyushins production capacity in Tashkent. Two strangers waited on the tarmac of Tashkent International Airport for about twenty minutes with the pick-up team, and finally saw a large, four-engine wide-body passenger plane emerging from the light clouds and slowly descending. Il 86? ?Chkalov Factory Director Kucherov, who was standing behind Lozko, was the first to recognize the model of the aircraft: And it should be a new aircraft that was just delivered to Voronezh the year before last. The wings and the front and rear sections of the fuselage were all manufactured by our factory. Mirziyoyev, who was standing nearby, was attracted by these words and looked here, and blurted out in surprise: "After 1991, have you delivered new aircraft to China?" Obviously, his knowledge of the situation at the Chkalov Factory was limited to the surface, and he had no idea what had happened in the past few years. In fact, Mirziyoyev was originally an important member of the open and liberal factions after the disintegration of the alliance. Although he once worked as a mechanical engineer, he has been out of technical positions for a long time. In addition, he has just taken office, so he is not so Knowing the current situation of the factory is understandable. ??But this still made Director Kucherov frown slightly unhappy. After 1991, the Chkalov Factory and the Ilyushin Group broke away from their affiliation and turned to cooperation. As the director of the factory, he naturally became the focus of the struggle between the two parties just mentioned. Both sides hope to win his support, and the unintentional question just made obviously made the local faction lose a lot of points in Kucherov''s heart. Lozko naturally would not miss this opportunity, and replied calmly from the side: "Yes, in 1992, China''s Beijiang Airlines purchased three IL-86 aircraft from us. At that time, in order to solve the livelihood problems of several manufacturing plants, some parts were specially distributed to Kazan and Tashkent for manufacturing. This should be one of them. In fact, the Il-86 was first completely produced by the Voronezh factory, but the scale of the factory was relatively small. When preparing to upgrade equipment to manufacture a newer generation of Il-96 passenger aircraft in the late 1980s, a considerable part of the production capacity of parts was transferred Arrive at Meletz PZL factory and Chkalov factory. The fact that they specifically chose to take this plane here should be a signal of goodwill. Lozko straightened his suit and looked up at the passenger plane that had landed in the distance and was about to enter the taxiway, with an excited look on his face: "We must seize the opportunity. This time I have talked with Minister Vladkov of the Ministry of Foreign Economic Relations. As long as the price offered by the Chinese is sincere enough, he will not set the price for the Chkalov factory''s products. Exit Threshold. A few minutes later, the Il-86, numbered B2016, stopped steadily in front of everyone. The first person to come down the gangway was a general who looked to be of a certain age. It was Huai Guomo who had previously completed the negotiations with the EU delegation with Chang Haonan. Most of the members of the delegation following him were also wearing military uniforms. Lozko, who was already prepared, took the lead to greet him: Welcome to you, I am the head of delegation of United Aviation Technology Export Company, Sergey Lozko, and the director of marketing department of Ilyushin Group. Huai Guomo, deputy director of the Commission of Science, Technology and Industry for National Defense in charge of foreign military and technical cooperation. ?The two parties spent a few minutes getting to know each other, and then boarded a convoy arranged by Tashkent locals, preparing to go to the Chkalov Aircraft Factory. As the main large aircraft production base before the disintegration of the alliance, it can actually directly take off and land aircraft of the size of the IL-86. ??But Mayor Mirziyoyev played a little trick. He planned to take the Chinese delegation to look at other valuable places in the city on the way. If the other party is willing to invest, thats even better. Even if he wanted to buy it directly, he could offer a relatively low price. You can also make a fortune from it by the way. ? Its just that this plan obviously did not take into account the identity of the delegation members. ? The Commission of Science, Technology and Industry for National Defense is not responsible for commercial affairs. Moreover, China in 1997 was not like twenty years later. It really had no spare money for foreign investment. ? And it just so happened that Huai Guomo, the person in charge of China this time, had a technical background and had a lot in common with Lozko, who was also an engineer. So on the way to the destination, Mirziyoyev did not even have much chance to intervene in the conversation of the other two people. (End of this chapter) Chapter 266 IL 114? Did you make something wrong? Chapter 266 Il 114? Did you make something wrong? ??The convoy circled the streets of Tashkent for more than an hour before finally arriving at the Chkalov Aircraft Factory in the east of the city. The atmosphere inside the extended Mercedes-Benz that was lively just now began to become a little heavy the moment it drove into the factory gate. Through the side window glass, Huai Guomo could clearly see the tall workshops in the factory, the vast runway, and several old-model Ilyushin aircraft parked haphazardly on the tarmac not far away. Everything tells the glorious past of Asia''s largest aircraft manufacturer. But as long as you pay a little attention, it is not difficult to see through the decorative flowers and plaques a few pieces of broken glass on the side of the factory building, as well as the weeds growing out of the cracks in the stone slabs on the ground. ??Although it has only been a little more than five years since the alliance disintegrated, the general level of superficiality can no longer even cover up the slight dilapidation and desolation that has been revealed here. ??The convoy slowly passed a row of IL-62 aircraft in varying conditions. Judging from the condition of the aircraft, no one had maintained them for a long time. On December 25, 1991, these aircraft may have been sent here for overhaul or upgrade, but everything that followed made them lose their users and were forced to stay in this inland Gobi city forever. ?Perhaps noticing Huaiguomos gaze, Sergei Lozko broke the air that was about to freeze at the right time: These are old models that your country is very familiar with. They are outdated today. I will show you some of Ilyushins latest aircraft later. The Chinese entourage quickly translated this sentence to Huai Guomo. The latter was stunned for a moment, and then laughed heartily: Okay, lets wait and see. A few minutes later, the mighty motorcade stopped at the door of the No. 2 final assembly workshop of the Chkalov Factory A large factory with the capacity to produce hundreds of aircraft per year is naturally unable to put all models in the same place for final assembly, as that would be difficult to improve efficiency. After getting off the bus, the first thing was a brief welcome ceremony. ??As the leader of the Chinese delegation, Huai Guomo naturally had to go through the three-step standard process of shaking hands, speaking, and taking photos. Finally, I received the bouquet and gifts from the dressed-up Uzbek girl. Chkalov Factory obviously put some thought into it. ?But his attention was not on that. I haven''t felt it from a distance, and now I can feel the amazing scale of the factory. Although the two assembly workshops are separated by number, the buildings themselves are actually connected together. From Huai Guomo''s perspective, the entire production building can be said to be continuous, like a hill. As the leader of the Science and Technology Commission in charge of the national defense industry, he has naturally seen the aircraft manufacturing factories in China in the past. But I have to say that arriving here today has refreshed his understanding. ??Although he had concealed his surprise well, his absent-minded state was still noticed by Lozko. Fortunately, he just thought that this group of Chinese soldiers didn''t like red tape very much and just wanted to get to the point as quickly as possible, so he didn''t think much about it and just motioned to Kucherov next to him to quickly end the process. When a group of people actually entered the assembly workshop, they felt an unconcealable sense of desolation. At a glance, more than a dozen semi-finished aircraft with varying degrees of completion were parked on the ground in an orderly manner. In the corner on the other side of the factory were several fuselages and wings that had not yet entered the final assembly process. As for other parts , and machines and equipment are even more difficult to count. However, only two of the aircraft that looked nearly complete were surrounded by assembly frames, with several workers climbing up and down with tools. ?Huai Guomo, who came from a technical position, quickly realized that they were not assembling aircraft, but only performing necessary maintenance. As a complex industrial product with a complex structure and an extremely large number of components, the final steps of aircraft assembly are difficult to complete with any automated equipment and are highly dependent on experienced workers. However, human control of position, especially long-distance position points, is obviously not accurate enough. Therefore, in order to improve the accuracy and efficiency of aircraft assembly, engineers will design based on a model''s positioning point position, positioning method, fixation method, shape and other factors. Develop specialized aircraft assembly frames. For frame-assembled aircraft, without this equipment, the final assembly process is simply impossible. Obviously, except for the two lucky ones, the other semi-finished products should already be in a semi-abandoned state. Seeing this scene, Huai Guomo felt his heart bleed. ?Although these aircraft may not look big, in terms of quantity, they are almost equivalent to China''s entire year''s production. But as he moved forward, the full view of the two planes gradually appeared in his field of vision. An extremely familiar feeling arises spontaneously. ?Hai Guomo frowned, and a model that he had seen in the information when he was negotiating with the European delegation flashed through his mind. Is this thing similar to MA60? Huai Guomo turned his head and asked Liang Zhuoping, the chairman of the Aviation Industry Corporation of China next to him, in Chinese. You cant blame the former for not having much impression. In fact, before Chang Haonan helped 603 Institute to make major changes to it, which greatly improved its commercial competitiveness, the MA60, or the past Yun7-200A, was basically a small machine. transparent. And more importantly, before this year, although this model was nominally a dual-use model, it was actually managed by the Civil Aviation Administration of China, and it only took three months for the Science and Technology Commission to fully take over. Hai Guomo spent more than two months dealing with negotiations. ?However, before Liang Zhuoping could answer, Lozko, who was walking at the front, had already come to the side of the plane, turned around and introduced: "This is an IL-114M that is about to complete final assembly. It has 60 seats and a maximum take-off weight of 21 tons. It can fly 1,000 kilometers at a speed of 500km/h when fully loaded and 2,800 kilometers under a commercial load of 3.6 tons. The performance is completely comparable to the European ATR42, which is a very good regional airliner... Pay attention to the cables on the ground and dont fall. "In terms of positioning, this model is planned to replace the past An-24, which is the Y-7 transport aircraft produced under your country''s license. It also has a certain inheritance relationship with the old model in terms of technical details and flight operations, regardless of the manufacturer. Users can adapt quickly..." Obviously, Lozko had done some homework before this trip. But not much. ? He ??knows that Chinas civil aviation industry is in urgent need of advanced models. There are a large number of old aircraft such as Y-7 in service on the front line, and the aviation manufacturing industry is also undergoing transformation and upgrading. ??As long as this trip can be carried out one year in advance, the IL-114M in front of us will be very attractive to China, which is struggling to even transport the 7-200A. However, when MA60 has already secured an Italian partner and is about to obtain airworthiness certificates from 15 EU countries, it seems a bit inappropriate for you to tell us this again... Mr. Lozko. ??Taking advantage of the opportunity when the other party finished speaking, Huai Guomo interjected with a complicated mood: I thought maybe I should reveal some secrets to you in advance. "What?" Evidently, the Russian is fashionable and feels good about himself. "According to the agreement reached between China and the EU some time ago, the MA-60 passenger aircraft improved by our aviation industry on the Y-7 platform should soon enter the European market, so there may not be much demand for the model you just mentioned. " After the translator translated the sentence into Russian, there was silence. Lozko suddenly felt a little dizzy. (End of this chapter) Chapter 267 Let’s take a look at the big plane in the distance, family members Chapter 267 Lets take a look at the big plane in the distance, family members ?? Regarding the mutual recognition of airworthiness of regional aircraft between CAAC and JAA, there is no official news released yet, and the last agreement disclosed by the two parties in the media did not include this item. Hence, all Russian personnel, including Lozko, were completely unprepared for this incident. The initial reaction was of course shock. ?Although almost all members of the delegation have dealt with China, some of them can even be called veterans, and they are well aware of Chinas development over the years. But how did this suddenly switch to the episode about selling planes to Europe? ??I always feel that a lot of plot has been omitted in the middle? We are all professionals in aviation, not to mention that Chinas aviation industry was originally born out of the Soviet Union. Logically speaking, there should not be such obvious mistakes. ?Of course, Huai Guomo also played a little word game here. What he actually said was that it can be exported to Europe. The airworthiness mutual recognition process between the two parties has basically reached the final stage of retreat. Negotiations on the substantive content have been completed. There are only some procedural issues that need to be determined and communicated. If we move quickly, these will be announced to the outside world. God''s work. As soon as the documents are signed, the MA-60 that has passed the airworthiness certification in China can be legally sold to Europe for registration and operation. As for how much it will sell, and when this model, which is still in the test flight process, will be delivered, that is another matter. ?But even so, it was enough to confuse the Russians on the opposite side. After being shocked, Lozkos first feeling was confusion. He even stopped introducing the aircraft a little gaffefully and directly went to the staff of United Aviation Technology Export Company who was responsible for external technical tracking to ask about the situation. ??This person is an engineer who used to work in the Antonov Design Bureau. He worked in China for a period of time more than a year ago, and later switched to the Yakovlev Design Bureau. The answer he got was that he didnt know what was going on. The other party said that when he went to work in China, the latter obviously did not have the ability to design and manufacture advanced aircraft. At that time, the best aircraft it could produce on its own was just the Y-8, which was a copy of the An-12, which was roughly equivalent to that of the 1970s. initial technical level. ?Its just that some people are happy and some are sad. Compared with the frightened and even a little panic on the part of the Ilyushin Group, the representative of Tupolev who was hidden in the crowd shone brightly. ??IL 114 is basically the lowest link in the civil air transport system planned before the alliance was disbanded. The reason why Lozko came up with this model first was that it was similar to the previous An-24 in specifications and had relatively low technical difficulty. The production lines that produced An-12 and An-24 in the past were also easy to convert and could be produced relatively quickly and quickly. As a result, I think it should be easier to impress the Chinese side. The production cycle of higher-level aircraft is longer, and the corresponding costs and parts that require cooperation between the two parties are also greater. Even if the Ministry of Foreign Economic Relations does not set restrictions on technology exports, it will probably be difficult for China to do so in a short time. See the effect. ??This kind of complex project involving cooperation between the two countries will easily lead to nightmares if it is delayed for too long, especially in this type of industry with high investment and long return cycle. ? This is the conclusion given by United Aviation Technology Export Company after appointing a special person to analyze the assembly of MD82/83 aircraft and MD90 aircraft by Hufei. But now, the situation is obviously different from our previous expectations. ??Although it is not clear how the Chinese did it, they are obviously not interested in small aircraft of the Il-114 level. And Ilyushin Company does not have a larger model. Following the next step is the Il-96, which has a maximum takeoff weight of nearly 300 tons. Obviously a bit out of class. In the middle is the opportunity for their Tupolev Group. The words were divided into two parts. On the side of the Chinese delegation, Huai Guomo did not care about the short-term chaos that the other party fell into. Instead, he walked forward with Liang Zhuoping and took a closer look at the most completed Ilyushin 114M. Although the MA60 can be considered a relatively successful model overall, in order to enter the civil aviation market, many key subsystems still use Western shelf products. ?For example, two Pratt & Whitney PW127Js are used for power. ??Although Pratt & Whitney has not been acquired by Raytheon these days, it is still impossible to obtain a license for a model equipped with this engine to be used directly for military use. As for the same level model from China... Turboprop 5A, lets not mention it... ?However, Huai Guomo certainly did not show too much interest on the spot. He just remembered the model number on the nacelle on the side of the engine. TV7M-113. It should be a product of Klimov Design Bureau. You can have some private contact after you go back. At this moment, the Russian delegation finally figured out their thinking. ??Lozko found Huai Guomo again: I wonder how you solve the airworthiness certification issue for commercially operated aircraft exported to Europe? Compared to the issue of aviation technology, this was what puzzled him. A few years ago, Russia also tried to engage in aviation cooperation with Europe, but the results were not smooth. The main reason is that there are too many countries over there. Negotiating with more than a dozen countries at a time would make everyone feel numb. ?As long as you have enough chips, it is not difficult to deal with France and Germany, the two leaders, but there are always some small countries that will jump out without warning and cause trouble. Obviously controlled by the other side of the ocean. Now that China can overcome this problem, they are really curious. ?Of course there is also some envy mixed in. Well...According to the requirements of the EU, the details of the current negotiations cannot be made public yet, but it should not be long before..." Huai Guomo used the Europeans as a shield, and then changed the subject: In addition, since you invited such a large team like us to come here, you must not be able to bring out only this kind of regional aircraft. How about we open the skylight and speak openly and show some sincerity directly? Lozco, who just now felt that he had a clever calculation, was mercilessly slapped in the face. Now he is also a little embarrassed and hurriedly got off the donkey: "Of course not. In fact, this is just the beginning of this trip. I just didn''t expect that you could come up with a model comparable to the ATR42 in such a short period of time. As for your sincerity... please follow me. Lets go to the No. 1 assembly shop to have a look. Actually, our model cannot be said to be equivalent to ATR42. Huai Guomo followed the other party and said casually. "oh?" ??Lozko thought it was the Chinese who had some special negotiation skills. The main reason why we can enter the European market is that we are more advanced than them. If you also have development needs in the field of regional aircraft, we can reach some technical and policy cooperation, of course, on the basis of equal exchange. ?After the signing of the last agreement with Europe, Huai Guomo has also experienced how comfortable what Chang Haonan calls "technology for technology". ??At least now they are on equal footing, playing tricks on each other. In the past, when introducing technology, China was basically in a passive position and was completely manipulated by others, and occasionally it could gain some advantages. ?Especially when I heard Chang Haonan talk about the story of three Europeans who wanted to buy a "premium version" of software but were politely rejected. To sum it up, its a pleasure. Ahem ??Lozko almost blacked out. Good guy, I havent sold anything here yet, but the other party has taken the initiative to do business. But at this time, no matter what he said, he looked like a clown, so he had to speed up his pace and walked into the wider workshop No. 1 with a large number of people behind him. Huai Guomo took a deep breath and his expression finally turned serious. ?Several IL-76 transport aircraft that have been completed or will be completed soon are parked inside. Judging from the relatively new condition of the machine and the assembly frame next to it, they should not have been abandoned yet. In other words, they are all equipment that can be obtained immediately. ??This is the scene he wanted to see when he led the team here this time! (End of this chapter) Chapter 268 The God of Wealth of the Air Force Chapter 268 The God of Wealth in the Air Force The Chinese Air Force currently has 14 second-hand IL-76T/TD transport aircraft purchased from different channels. ?Four of them are set aside to be modified into early warning aircraft. Although there are very few in number, they are not new machines and the related tactics are not very proficient yet. But after all, the military has been able to experience the performance of large transport aircraft. It is easy to go from frugality to luxury, but it is difficult to go from luxury to frugality. Cant go back. At a load that is three times that of the Y8, it can fly three times as far as the Y8! The long-distance transport aviation arm submits its annual year-end summary, which can be summed up in one sentence. The big plane is really fragrant, hurry up and get more! ?However, the voice of the troops is high. Considering China''s stretched military expenditure in the past few years, it really cannot afford to introduce more IL-76 or other large transport aircraft. In addition, large transport aircraft are still not as urgent as several advanced fighter models also equipped by the Air Force, so this matter has been shelved. But in 1997, the situation changed somewhat. The secondary reason is that due to a series of events in 1996, total military expenditures soared by nearly 10 billion yuan as planned. ?At the same time, because the development leadership of several civil aviation models was taken back to the Science and Technology Commission system, there were billions more on the books. The main reason is that when the 1997 annual budget was compiled, everyone was surprised to find that because many expensive projects such as the J-8C, Kunlun engine and Thunderbolt 11 were completed ahead of schedule in the second half of 1996, there was a large number of The project R&D and equipment procurement costs that were originally planned were saved. The total amount of this money is not more than the previous two, that is, it is on the level of several billions. But there is a considerable part of the foreign exchange quota. In the 1990s, this was very popular. Mainly due to the huge amount of money saved during the introduction of No.11 Project technology ?According to the original psychological expectations of China, including technology transfer, equipment, materials, labor and other costs, the total contract amount that needs to be paid to the Russian side during the entire project period is probably between US$7 billion and US$8 billion. The one-time payment to be made in 1996-97 is nearly US$1.5 billion. However, Sukhoi made huge concessions during the negotiation process last year, lowering the purchase unit price and at the same time reducing the number of aircraft that China was required to purchase directly from Russia. As a result, this expenditure was actually reduced by one-third from the original plan. About one. This means that in 1997 alone, there was almost an extra US$500 million that could be spent on introducing other technologies or equipment from abroad. This can be regarded as a windfall. Just in time, the Ilyushin Group and the Chkalov Factory jointly invited a delegation from China to visit. The Air Force''s thoughts naturally became more active. ?This is how the trip led by Huai Guomo came about. ?Before departure, Ding Gaoheng listed and summarized these things at a small internal meeting held by the Science and Industry Committee. The original intention is to improve everyones self-confidence. But as soon as the table was displayed on the big screen, someone noticed the bright spot. It seems that the same name is vaguely behind these things... Whether directly or indirectly, Chang Haonan played a very important role in it. In this regard, Ding Gaoheng commented humorously: It seems that our little comrade can still be regarded as the God of Wealth of the Air Force... At the beginning, when Huai Guomo came to Tashkent this time, he even wanted to bring this "God of Wealth" with him. ?The latters whimsical thinking and overall perspective in the previous negotiations with the European Union made him quite unforgettable. ?Unfortunately, after asking, I found out that the other party was helping the Electronic Technology Group deal with a difficult issue and could not escape for the time being. After careful consideration, he still believed that it was more important to let Chang Haonan solve technical problems. After all, in the several times mentioned earlier, the latter was also solved through technical means. After a brief fugue, Huai Guomo''s attention returned to the two rows of large aircraft parked in the factory. Kucherov, who had not spoken much just now, finally came to the front: There are now a total of two Il-78 tankers in our factory that have been basically completed. Only the Il-78 tankers that need some preparation work are left, which are the two farthest from us. Following the direction of the factory director, Huai Guomo saw two aircraft at the end of the queue with the words CCCP spray-painted on their fuselages. Lozko next to him opened his mouth, as if he wanted to say something, but in the end he remained silent. Although the Chkalov Factory does not have the ability to manufacture aircraft from scratch, it has no problem completing these semi-finished airframes. From a legal perspective, it is certainly possible to discuss what proportion of the aircraft remaining in the Chkalov factory belongs to the Ilyushin Group. ??But that doesnt make sense. The disintegration of the alliance is a mess. How many things can be snatched from the chaos depends on each person''s ability. Now even if he comes up with tricks, Kucherov cannot hand over these things parked in the assembly workshop. ??At this moment, we are at a critical moment when the Ilyushin Group and the local forces in Tashkent are competing for the legacy of the Chkalov Factory. There is no need to offend the key figures among them with these bits and pieces. Under the leadership of Kucherov, we walked near the Il-76 final assembly line. The first four aircraft are also IL-78s, and the completion rate is about 70%. With sufficient financial support, they can all be completed within half a year. "The first, that is, the four Il-76TDs we are passing by now are military transport types. They are about half complete. The main reason is that the power system is not yet in place. If the Perm Engine Factory can provide enough D30KP2 engines, then it will be very Fast, at most... one and a half to two years." Why are these four planes taking so long? Liang Zhuoping, who was following Huai Guomo, asked curiously. After all, the complexity of IL-78 is actually higher than that of IL-76. Because we cant produce so many aircraft at the same time as before, we have to queue up, and those at the back will naturally be slower. ??Kucherov did not conceal this matter - although he had made a lot of superficial efforts to welcome the arrival of the Chinese purchasing delegation during this period, the current situation of the factory was still obvious to those who knew the inside story at a glance. Even if he didnt say it, Chinese people would be able to understand everything just by spending a few days wandering around Tashkent and talking about everyday things. This No. 1 workshop used to be able to assemble 12 200-ton large aircraft at the same time, but now... it can only guarantee 3-4 aircraft. The old factory directors voice was a little lonely. ?However, he turned around and assured Liang Zhuoping and Huai Guomo: "Even so, our cost-effectiveness and efficiency are already very high. No other place in the world can guarantee to provide you with 10 brand-new strategic transport aircraft within two years, and the price... can be discussed later. " ?This is not a lie. In fact, there are only three suppliers in the world that can provide strategic transport aircraft. Among them, McDonnell Douglas or Boeing''s C17 will definitely not be sold to China. Antonov does not have the ability to produce the An-124. Moreover, due to the restrictions on take-off and landing conditions, there is no competitive relationship between the An-124 and the IL-76. ?Chkalov Factorys only competitor is actually the 800 Il-76s it built in the past. ??If the price is too high, it is entirely possible for Chinese people to turn around and buy used goods. You must remember that this was only the beginning of 1997, and the second-hand aircraft in the hands of the CIS countries were in good condition. Not to mention, the Uzbek Air Force itself has a dozen unused Il-76s waiting to be sold. As for the business of overhauling the Il-76, it can be completed by places such as the Belarusian 571 Aviation Repair Plant, and the competition is fierce. Why leave it until later, I think we can start talking today. With the efforts of the profitable Mirziyoyev, the negotiations between China and the Chkalov factory on the current 10 aircraft went very smoothly. They did not even need to sit at the negotiating table. They were directly on an Ilyushin 76. A verbal agreement was reached in the cabin. Since the factory was in a hurry for money, and these aircraft were originally free for Uzbekistan and did not involve any research and development expenses, the price of a package of 10 aircraft was only US$108 million without worrying about it. ?Of course, for China in this era, this is already a huge deal. But if someone saw this price in Chang Haonan in Yanliang, they would definitely call it outrageous. Seventeen years later, in 2014, China purchased three second-hand IL-78s from Ermao, with a unit price of US$45 million. Even if the inflation rate over the years is calculated, the new machine with a unit price of 9.6 million can indeed be regarded as a clearance sale. ?Of course, the two parties still held a brief ceremony the next day and finalized the formal contract. After all, they are worried that the other party will regret it. ?However, subsequent negotiations with the Ilyushin Group and the Chkalov Factory on the purchase of the new Ilyushin 76MF transport aircraft progressed slowly from the beginning. To put it bluntly, second-hand aircraft are assets of the past alliance, and they can be sold at low prices. But new aircraft, especially those that have just completed their first flight and have not yet been fully finalized, are another matter. ?Lozko has set the unit price of the aircraft at US$33 million each, and must purchase at least 36 aircraft in the next 10 years. ?Hai Guomo has no objection to this quantity, but the unit price of US$33 million is still too high for China. Project No. 11 has saved a total of almost 2 billion U.S. dollars. You cant just hand over more than half of it to Ilyushin by changing hands, right? This is external procurement in a pure sense and does not involve technology transfer. After several days of confrontation, neither side was willing to give in. ?So the negotiations reached a deadlock. How about we contact that comrade, the God of Wealth, and ask him if he has any opinions? After the end of countless rounds of negotiations, Liang Zhuoping put forward his own suggestions while talking and laughing. (End of this chapter) Chapter 269 Drive the tiger to swallow the wolf, An 70 and Il 76 Chapter 269: Driving away tigers and devouring wolves, An 70 and Il 76 When Chang Haonan first learned that he had a telegram, he was still a little confused. ?The right to know belongs to the right to know. It only means that he has the authority to know. It does not mean that someone will specifically inform him of everything - That is the kind of treatment only supervisors have. So Chang Haonan didn''t know about the various things that happened in the Science and Technology Commission during this period. ?Furthermore, the method of transmitting information via telegraph also gave him a sense of illusion as to whether he had traveled forward again. ? It is now the mid-to-late 1990s. Although the telegraph service still exists, there are basically no people using it, so that this is actually the first letter he has received in his two lifetimes... ?However, when he got the telegram manuscript from the confidential room of Factory 172, all his doubts were solved. In some areas of encrypted communication, telegraphy still has its place. Until more than 20 years later, some armed forces stationed in remote locations still retained telegraph operators and telegraph transmitters just in case. ??This is an extremely long message that can bankrupt an ordinary employee on a commercial telegram. The content is so detailed that it took Chang Haonan a long time to read it from beginning to end, even if he read it ten lines at a time. After reading the first two pages, his first reaction was: Holy shit, am I so awesome... Although Chang Haonan knew that he had done a lot of things in the past nearly a year, as a technician, his main concern was what difficulties he had overcome and how much time he had saved compared to his previous life. For this series of operations, I havent thought much about how much money I can save the country. But in this telegram, Huai Guomo inadvertently mentioned somewhere that the funds for purchasing these large aircraft were saved from the No. 11 Project. In other words, just counting foreign exchange, it is at least at the level of one billion U.S. dollars. Not counting RMB. Its no wonder that even he himself feels a little surprised by the attention he has received in recent months. ?According to the goal he set for himself when he was just reborn, he was to increase his influence enough to influence the direction of policy within 3-5 years. Now it seems that it will be achieved in almost a year. Although this impact is still brought about through indirect means. ?However, Chang Haonan was in a good mood and decided to have a good meal to celebrate in the evening. ?However, the content behind the telegram made him dumbfounded. This time the Committee of Science and Industry sent such a large delegation, naturally it was not just to buy 10 aircraft that were about to be completed, but also to reach a longer-term cooperation with the Ilyushin Group and to conduct preliminary discussions with the Tupolev Group. The contact paved the way for the domestic passenger aircraft plan proposed by Chang Haonan. But now, due to differences between the two parties on price and payment methods, the negotiation progress has stalled on the second step. It was not that the Chinese delegation had not thought about negotiating with Tupolev or Perm first, and using the competitive relationship between these companies to create a prisoner''s dilemma, but the other party changed their past attitude of fighting each other and gave him the answer The caliber is surprisingly consistent. After a few days of getting to know each other, the former learned that Damao had established a new company that was responsible for the export of aviation equipment and technology. Therefore, they could exchange what they had, and the effect of the divide-and-conquer strategy was greatly reduced. Although Huai Guomo did not explicitly make any demands in the telegram, but only asked Chang Haonan if he had any thoughts on this situation, considering that it mentioned many times that the test flight of the New J-8C last year had a role in promoting the negotiations on Project 11 , the meaning hidden between the lines is actually very obvious - Xiao Chang, can you do that job again last year? Chang Haonan looked at the manuscript paper and pen left by the director of the confidential office in front of him, and wanted to write two words: No. There are limits to human abilities. He was able to complete the August 3rd Project in a short period of time because the technical difficulty of this project is within the reach of China''s current level. But a strategic transport aircraft. Sorry, this is outrageous. Its not a matter of advanced or not, just the feature of big means that the difficulty is high. ? Structural design has never been an area that China Aviation Industry is good at. Let alone the 200-ton class, in the previous life, when designing the 40-ton ARJ21, a lot of foreign aid was invited. Even if Chang Haonan spares all his scientific research points and comes up with a design, Factory 172 will not be able to turn the drawings into a real aircraft. You dont have the ability to know. Heavy-duty die forging press, skin stretching machine, hot press forming machine, directional solidification furnace, high-precision CNC machining center Nothing at all. Chang Haonan also wants to do the big plane thing, but he has to take his time and can''t think about eating a fat man in one bite. ?He shook his head and was about to pick up a pen and think of a more tactful way to show that he really couldn''t do it. But when he had finished writing and was about to write the main text, an idea suddenly flashed in his mind. At this point in time, there may not be no chance at all. The big hair is not enough, there are still two hairs. You can absolutely drive away the tiger and devour the wolf. ??There is a very suitable model that can be used to promote this strategy. 70. As the deputy director in charge of foreign military technical cooperation, Huai Guomo must know this model. But people of this era may not know some of the details. ?The first prototype of the An70 made its first flight in 1994, but crashed after colliding with an accompanying An72 during a test flight in 1995 due to non-technical reasons. Antonov almost lost his pants before building a second prototype, which rolled off the assembly line at the end of last year. Chang Haonan cant remember exactly when this aircraft made its first flight. It should have been in April or May 1997. ?In the original timeline, Da Mao was still completely self-developed but had to start from scratch between the model Tu 330 and the An 70. It had to wait until about the second half of 1997 to start joint development with Er Mao. But he had read the memoirs of a member of the An70 design team in his previous life. ?At this time, the Antonov Group was already in trouble internally and externally. The higher-ups only wanted to sell off various high-quality assets quickly and at low prices without caring about their lives. There were still tens of thousands of employees below who were waiting for their wages to be paid. ?The design team even thought about packaging and selling all the technical information of the entire project if someone could offer 800-1 billion US dollars. The comprehensive transportation capacity of the An-70 is definitely not as good as the Il-76, but looking only at the maximum load capacity, it is still 47 tons, which is equivalent to the early Il-76. And its not just a new aircraft, its a completely new design from the ground up. ??If we can seize this time window, we can put enough pressure on the Ilyushin Group. ?Thinking of this, Chang Haonan quickly changed his previous thoughts and reorganized the language. Of course, judging from past history, Ermao is not a good partner for long-term cooperation due to the high degree of instability in the domestic situation and the fluctuations between left and right. So the first choice strategy is to use two cents to make a big one. ??But if Ilyushin really can''t get enough oil and salt, we can also consider transferring as much An-70 related technical data as possible in the relatively stable period of the next few years to prepare for the subsequent domestically produced large transport aircraft. Its just that if you do this, many of Chang Haonans previous plans will be disrupted. After all, the number of scientific research points he can use is limited, and the system can only process two projects in parallel at most. The most efficient way is definitely to proceed step by step. There should be more in the evening (End of this chapter) Chapter 270 passive radar detection Chapter 270 Passive Radar Detection Even though Chang Haonan had reduced the length of the telegram as much as possible, he still ended up writing about two to three thousand words. And almost every sentence must be carefully considered. After all, many of the details come from the memories of previous lives, so there is definitely no way to write them down directly. In order to increase his persuasiveness, he had to say that the maximum takeoff weight of the An-70 is only three-quarters of the IL-76MF, making it an easier reference in the future. Happily, the core of this proposal, Antonov''s lack of money, is easy to explain. Just say its a guess. Everyone can guess it anyway. It''s just that Chang Haonan knew very clearly how short of money they were, so he dared to make such a bold-looking plan. When this operation was completed, the telegram was handed over to the director of the confidential office who had been waiting outside. The whole afternoon had passed, and it was just dinner time. ?Standing in the cool breeze of early April, the tiredness caused by being bored in the confidential room for an afternoon disappeared in an instant. ?Chang Haonan remembered that a few hours ago, he decided to have a good meal. After hesitating for a moment, I felt that it was a bit outrageous to eat alone. ??Having received many high bonuses (by the standards of this era) and eating and drinking without having to spend any money himself, he is now considered a wealthy man. ?Finally, he changed direction and prepared to go back and call in the comrades from the 14th Institute who came to Yan Liang on a business trip, and of course Xu Yang. As for the name, lets just say to boost morale and prepare for the next round of electronic warfare pod testing. Anyway, if we count the days, Jinling should have something shipped over. But when he pushed open the door of the research room, he found that everyone inside was already beaming with joy, as if they knew in advance that someone was going to treat them tonight. Everyone, how about we go out for dinner tonight? Although he was a little curious, Chang Haonan, who was in a good mood, decided to talk about the important things first. Then he received a dozen looks with the same doubts and surprise: Chang Gong, didnt you go out in the afternoon? "yes." ?Chang Haonan nodded. Then how do you know Guo Gong has thought of a good idea? Yeah, Dr. Xu also thinks his idea is fine. And we simulated it on the previous circuit, and its completely feasible. Everyone was saying something to each other, and Chang Haonan finally understood that this was probably a mistake. So, whats the idea? He took off the scarf around his neck and hung it next to him, walked to Guo Lin and asked. Lin Shikuan from Institute 601 has already become a digital design engineer who can take charge of his own role under the guidance of him and Yao Mengna. He has solved many problems for the aviation industry when Chang Haonan has no other skills. ??It would be nice if it could be reproduced in the 14th Institute of Electrical Engineering. Ahem Hearing Chang Haonans question, Guo Lin instantly became excited. After such a long time, its finally my turn to show off. He instantly switched to sitting upright. Unfortunately, there was no one with enough eyesight to hand over the pen and paper, so I had to take it from the table next to me, which lowered the B level of this set of actions a lot. I thought of a way to specifically confirm the enemys location by detecting the radar signals emitted by the enemy. A specific location? Including distance? ?Chang Haonan instantly became interested. The technology of passive tracking of radar radiation sources has been used in Suppressed Air Defense Operations (SEAD) since the Vietnam War. However, in fact, until the mid-1990s, this detection could only obtain the target''s orientation information, but could not Directly determine the distance between ourselves and the enemy. Of course, for general anti-radiation missiles and electronic interference, this is not a problem, because even if I dont know the target distance, as long as I always follow the direction of the radar wave, I can always find the signal source. However, with the continuous advancement of air defense technology, the signal detectability of the radar itself is constantly decreasing, and the radar emission source can even work while moving at high speed. This results in the traditional single-station passive positioning being unable to continuously and stably track the signal emitted by the radiation source. As a result, a huge registration deviation occurred, and the efficiency of hard-killing radars through the combination of passive detection and anti-radiation missiles declined sharply in the 1990s. ?For example, the AGM88 Hamm could kill almost indiscriminately in 1982, but by 1999, facing the southern army with weaker resistance, the hit rate dropped to a horrific level. ?This situation has also given rise to the third generation of electronic warfare aircraft represented by EA18G. ?Now that Guo Lin said that he can solve this problem, Chang Haonan was indeed a little shocked. Uhthat cant be done. ?Guo Lin scratched his head in embarrassment: But radar signals can be sorted in a complex electromagnetic environment and the most threatening one can be effectively identified. At least it is much better than our current method, which can only intermittently obtain target signals. "oh" ?This answer made Chang Haonan''s newly heightened thirst for knowledge drop back slightly. ?But its not bad, at least its an improvement: Tell me and listen. "That''s right. A few years ago, someone proposed a transformation algorithm based on harmonic suppression of the autocorrelation function, which can transform the pulse signal TOA from the time domain to the PRI domain, effectively suppressing the harmonics of the real PRI of the pulse signal. , that is, if we assume that the TOA of each pulse is the ideal unit shock function ..." Wait a minute, wait a minute. Chang Haonan directly stopped Guo Lins introduction: I know the PRI, we can go straight to the next paragraph. Uhok. Guo Lin next to him also realized that he was a little carried away and tried to introduce this basic knowledge to the other party, so he quickly collected his thoughts and continued: In short, as the pulse TOA of the jittered PRI signal increases, the PRI algorithms error in the pulse phase factor will continue to increase. In addition, the accumulated pulses of the jittered signal will be dispersed into different PRI boxes. "So I thought that this algorithm can be improved in two ways. One is to introduce the concept of a variable time starting point to avoid errors caused by phase factors, and the other is to use overlapping PRI boxes for anti-shake processing... In short, I The designed process looks something like this. He was obviously prepared. He took out a beautifully drawn flow chart directly from underneath and handed it to Chang Haonan. At this time, the latter had forgotten what he was thinking about going to eat on the way. He picked up the piece of paper and lowered his head to think. After looking motionless for more than ten minutes, Chang Haonan finally raised his head again and looked at Guo Lin next to him: The idea is very complete, its pretty good for a person to think of it like this. "I''m not the only one. Other comrades have also helped me correct some things these days. Fortunately, judging from the test results, the repeated frequencies of the three groups of signals can be identified simultaneously through an improved PRI transformation calculation, and There are no false PRI peaks, and the processing capabilities for strong jitter signals have been greatly improved. ??Guo Lin was a little embarrassed and smoothed his hair. ??He intentionally did not consult Xu Yang and Chang Haonan before this afternoon, just to see if he could figure this idea out at his own level. Its a good idea. However, just identifying target signals and using electronic jamming for soft kills may not be enough in the battles facing the new century. I am a straightforward person who likes to cut grass and roots. If I dont blow up the enemys radar, it is always a hidden danger. ?Chang Haonan put down the paper in his hand: But having said that, your idea inspired me. "On the basis of being able to effectively sort radar signals in complex environments, there is no need for us to focus on anti-radiation operations... We should be able to use some means to allow aircraft to use passive radar to directly have the ability to detect and track targets. , I mean, even if the target does not have the radar turned on, of course it would be better if it is the target with the radar turned on. " Ah this? Guo Lin''s expression became a little stiff. ?Chang Haonan also noticed that the other party seemed to be a little bit shocked: "However, your algorithm still has academic value. If it is published, it may be difficult to publish it in professional control journals, but there is still hope for journals that intersect aerospace and control disciplines, such as IEEE Transactions, Aerospace and Electronic Systems." Is it really okay to publish this? As an employee of Institute 14, I am still sensitive to this. No problem, the PRI algorithm itself is not a new thing, and it is quite basic research. Instead of holding it in your own hands, it is better to publish it so that more people can see it. The key to implementing it into a specific model is the part I just thought of. ?This time Guo Lin was hit even harder. (End of this chapter) Chapter 271 Hunting hunters, annihilating Hongdian 7 (10,000 per day) Chapter 271 Hunting Hunters, Annihilating Hongdian 7 (10,000 per day) Fortunately, Guo Lin is used to this situation. Whats more, according to Chang Haonan, its not a big loss if you can publish a good journal. At least it can be used when evaluating senior professional titles in the future. I need some time. Chang Haonan had already formed a general outline of this idea in his mind, but the more he dug deeper, the more he realized the complexity of this thing. It was definitely not something he could calculate on the spot in this conference room with a piece of paper and a pen. of: Researcher Xu, do me a favor, this time it may be a bit complicated. No problem, what do you need from me? ??Xu Yang stood up and followed Chang Haonan to the nearby computer room. Improve some algorithms, of course its just some of my ideas now Only Guo Lin and others were left looking at each other. Guo Gong...what we are going to do next is... ?Another colleague who was quite confident with Guo Lin was also confused by this sudden change of situation. Sigh... Lets sort out this set of things first. According to Chang Gongs opinion, publish IEEETransactionsonAerospaceandElectronicSystems, which can be regarded as a small top journal... Yan Liang received brand new components from Institute 14 the next day, but Chang Haonan asked that the modification work on the No. 2 pod be put on hold for the time being. ??He has proven the feasibility of this new theory through the system, and the next step is to implement the algorithm model step by step. Once completed, it can greatly improve the performance of the planned JH-7 electronic warfare aircraft. It is even possible to rely on this technology to directly track targets beyond the normal radar detection range! Four days passed quickly. ?Chang Haonan and Xu Yang gathered everyone from the 14th Institute back into the research room. You should all have read the paper on volumetric Kalman filtering that Researcher Xu and I published? Chang Haonan skillfully took the new pen and paper from Guo Lin and asked the engineers around him. ?Everyone nodded: Of course I have. Theoretically, by applying the CKF algorithm to the nonlinear observation equation, radar registration bias correction and target state prediction can be achieved. Combined with maximum likelihood estimation, target data can even be processed in batches..." Chang Haonan first briefly introduced the ideal situation, which is not difficult for everyone to understand. But in actual applications, we will definitely miss some signals, and there will be a lot of clutter in the area. The CKF algorithm is actually not that easy to use. So faced with this reality, instead of blindly trying to avoid these irrelevant third-party clutter, we should find ways to use them to enhance passive detection of targets. Using third-party clutter? ?Another engineer behind Chang Haonans eyes lit up: "I have a younger brother who serves in the submarine force. I heard from him that during the Cold War, nuclear submarines from both the East and West had a tactic, which was to lay a mine at a known location and then detonate it at a specific time. Using the sound waves generated by the mine explosion, the entire An active sonar detection of targets in the area without exposing oneself is much better than pure passive sonar. ??Someone can compare his ideas in this way, which is a bit surprising to the former: "Yes, the mine you are talking about is our third-party signal source. It can be a civilian weather radar, a signal tower, or even radar waves emitted by other friendly or enemy forces in the area. But the stronger and more regular the signal, the better the effect will be. Of course, Researcher Xu and I also combined the sequence difference histogram method to further improve the PRI algorithm mentioned by Guo Gong. The combined effect of the two methods will be a surefire success in electronic warfare. "However, the speed of naval warfare is measured in minutes, while the speed of our electronic warfare is measured in microseconds, and targets often have speeds of hundreds or thousands of kilometers per hour, so the accuracy and speed of our data processing are fundamentally different. requirements. So I call the set of things Im going to talk about below the theory of stochastic finite sets (RFS) Chang Haonan said and took out a calculation process for the thickness of almost a book from under the table. woc ??Guo Lin was so shocked by this scene that he almost exploded. First of all, lets define what a random finite set is. ?This time, everything he wants to say has been typed out on paper, so he saves the time of writing and drawing: "For a locally compact Hausdorff separable space E, the set composed of all finite subsets in it is expressed as (E). Then, a random finite set on E can be defined as a measurable map :(E) "For an RFS, the number of elements is expressed as ||, which is the potential of RFS. In addition, the elements in RFS are disordered, that is, the necessary and sufficient conditions for RFS and RFS to be the same are: (1) ||=| |, (2) If the element ʦ, then ʦ䡱 "In short, if we design a radar, including post-processing software, and implement this model in engineering, we can passively detect targets without actively emitting radar waves, and achieve effective monitoring and control. track." ??When Guo Lin handed Chang Haonan the brewed tea for the eighth time, the theoretical explanation that lasted for more than four hours finally came to an end. Any more questions? Silence. The only sound that could be heard throughout the room was the hum of the fluorescent tubes energizing them. ?Chang Haonan took a sip of water. He knew he needed to set aside some time for everyone to think. After all, even Xu Yang and even himself, who was cheating on the system, had to go through it for a while before fully understanding it all. "Well" The first person to speak out was Guo Lin: "If you think about it this way, wouldn''t it be quite invincible? As long as our radar backend has enough computing power, even stealth targets can''t escape?" And this should not only be an electronic warfare method, all targets can be detected using this method. ?Another person also replied with a look of astonishment. Of course thats the case. Chang Haonan put down the water glass and nodded: "But you just said that you need to have enough computing power first. In reality, of course it is not that beautiful. Moreover, since the third-party radiation source or the target radiation source is not controlled, passive radar cannot guarantee continuous operation, or it requires someone who has the courage to do it. The sacrificed units of our side are used as the radar source, such as large drones or something..." In short, judging from our current actual situation, it is best to combine passive positioning technology to play a role in counterattacking the opponents SEAD operations. Is it also effective on ground radar? Logically speaking, this technology that relies on radar to detect targets should be mainly used for air defense. No, no, no, you didnt understand me. Chang Haonan shook the pen in his hand: Its not a SEAD operation, its an anti-SEAD operation. When they want to hunt our radar, even if our ground radar is jammed, the radar waves emitted can still be regarded as an effective third-party radiation source for detecting the other partys electronic warfare aircraft. The mantis stalks the cicada, but the oriole follows behind. It just so happens that the JH-7 in Factory 172 is at the end of its transformation. If we move faster, we can actually verify this strategy on it. "So...we have developed a countermeasure algorithm for electronic warfare?" ? Guo Lin never expected that the countermeasures that the 14 institutes had been pursuing for several years would be realized through this method - You can interfere with me, but I can also just kill your whole family. Today is 10,000, so its time to celebrate Double 11 (End of this chapter) Chapter 272 control electromagnetic power Chapter 272 Control of electromagnetic power ?The idea put forward by Chang Haonan sounds quite unrestrained at first glance, but if you think about it carefully, it is not outrageous. Because electromagnetic interference, at least injection and forwarding electromagnetic interference, is an interference mode that can only be dealt with after receiving radar waves, it is almost powerless against passive detection methods that do not emit electromagnetic signals themselves. In fact, choosing the JH-7 as a platform is a no-brainer. The poor maneuverability and large radar reflection area determine that it will become a relatively conspicuous target. If the opponent has an early warning aircraft to command it, it will be easy to detect and intercept this aircraft that is wandering outside the battlefield and ready to move in advance. . The power supply of 2*15kw is relatively insufficient, and will also become a shortcoming when facing real high-intensity electromagnetic confrontation. But now China has just begun to localize the Su-27, and as for the stealth aircraft, there is not even a shadow of it. There is only one kind of heavy-duty tactical platform that is suitable for use. It''s better than Yun 8... ?But on the other hand, the electromagnetic waves emitted by enemy early warning aircraft can also be used as passive detection methods, and if there is an anti-radiation air-to-air missile with a long enough range... ?Honestly laughing, what kind of early warning aircraft is this? I am flying an early warning aircraft! In short, although there is no perfect weapon in the world, a variety of imperfect weapons can still produce unexpected effects if they are coordinated properly. Actually, this model also has potential for the detection of low RCS targets, that is, stealth targets, that Guo Gong just mentioned. Xu Yang, who had been listening quietly to Chang Haonans explanation just now, also added: However, this requires some more unique technologies, such as the tracking before detection (TBD) algorithm, which uses rough data without parameter extraction, or point measurement data processed by a parameter extraction algorithm with a very low detection threshold, to estimate the target likelihood. The ratio function is accumulated directly or indirectly, thereby improving the signal-to-noise ratio of the passive radar. "Dr. Chang and I tried several ideas and found that the current iteration-based TBD algorithm can only process one frame of data at a time. It has basically no operational value in terms of data accumulation speed or calculation amount. After I return to the institute, I will focus on research in this field and strive to produce a feasible result within one to two years. ?Specifically, in terms of majors in control science and algorithm theory, Xu Yang is not even worse than Chang Haonan after he cheated. In addition, the latter''s main business is aviation after all, so he took on this task without hesitation. ?Anti-stealth is an urgent issue for countries around the world. Considering that China currently does not have the conditions to build a super-large radar station such as Donhe 2N, which relies on force to defeat skill, it can only put more effort into the aspect of making a big difference. Enough, enough. Guo Lin, who was shocked by the efficiency of Chang Haonan and Xu Yang, looked at the pile of paper on the table filled with dense formulas and charts. It was hard to imagine what kind of state they were in during the past few days. Work: Its enough to be able to do this at this stage For 14 institutes who originally just wanted to study the captured pod and do a wave of reverse engineering at most, this was definitely an unexpected surprise. First, we created a tactical pod that is smaller in size and has more functions, and then directly made an earth-shaking update to passive detection technology and radiation tracking technology. Even though the main achievers of these achievements are probably from Beijing Hang University or the Institute of Computing Technology of the Chinese Academy of Sciences, the final implementation of product development and production can only be left to them, Electronic Technology Group. Anyway, with this thing, next time we meet EA6B, we will definitely not repeat the mistakes of 1994! ??The engineer who just used the submarine tactics analogy to passive radar detection also spoke again. ?Chang Haonan remembers that his name was Lin Boyuan. The air incident in 1994 was a long-lasting pain for the entire Chinese Air Force and the entire Electronic Technology Group. Generally speaking, this kind of injury takes a long time to heal. But there are exceptions. For example, it took Chang Haonan a week to cure it now. But it can only be treated as a temporary solution at present. If you want to cure the root cause...it is simple. When you have the opportunity, just use a similar method to teach the other party the same lesson. ?Of course, no matter how sophisticated the algorithm developed by Chang Haonan and Xu Yang is, it still has to be implemented in equipment and programs. So after the former confirmed that everyone basically understood what he just said, he began to assign tasks in an orderly manner: Then we will divide into three parts to jointly advance the progress of the project. "Gong Guo, take a few people back to Jinling and add two sets of antennas and back-end software to the 1472 radar equipped on the J-8C to give it passive detection capabilities. Install it on the aircraft for testing. I will work with the 112 Factory With some coordination, you can directly take one of the finished products that have not been delivered to them and make modifications, which will be faster. "good." ? Guo Lin agreed quickly, then selected four from the other 14 people who came over, and then said to Chang Haonan: After all, Jinling is the base camp of our 14th institute. I can find other foreign aid after I go back, so the rest of us can stay here. Thats fine too. Chang Haonan looked at the staffing in the conference room and found that there was indeed a shortage of people if the troops were divided into three groups: "All the remaining comrades from the 14th institute, you are responsible for modifying the hardware part of the No. 2 pod according to the plan we have decided before. The improved PRI algorithm we proposed this time only requires rewriting the algorithm software of the pod. , this part of the work can be completed by Researcher Xu. Xu Yang did not answer, but nodded slightly. In the end, its me. During this period, I will return to my old profession. ?Chang Haonan deliberately put a hint of joking in his tone to ease the overly serious atmosphere in the conference room: The JH-7 that we plan to use as an electronic warfare platform is an old aircraft, so there are a lot of minor chores to be dealt with. If I participate, the progress should be much faster. Is there anything else you would like to ask? ?With the improvement of management capabilities and experience, Chang Haonan''s effectiveness in issuing instructions is also gradually improving. Everyone shook their heads and said no. "That''s it. This model is very important. It is an important part of our army''s ability to seize electromagnetic control in possible future wars. If it can be put into service one day earlier, it will have a huge effect on the formation of comprehensive combat effectiveness." As usual, Chang Haonan made a brief summary and mobilization. The right to control electromagnetism? ?This strange and novel expression immediately attracted the attention of many people. But the good thing about Chinese is that even if you encounter a new word that you have never heard of, you can understand it based on the literal meaning alone. So everyone soon understood what it meant. ?Just like air and sea control, so-called electromagnetic control is the ability to control electromagnetic wave signals within the entire battlefield. In the past, China was dominated by others in this aspect and had almost no power to fight back. But this time, this model, tentatively designated as the "JH-7", will become the symbol of the counterattack! (End of this chapter) Chapter 273 Flying Leopard, regain a new life Chapter 273 Flying Leopard, regained his life ?After assigning the tasks, everyone quickly got back into the intensive work. Chang Haonan had not participated in the improvement work of the JH-7 before, so Yao Mengna volunteered to take over the task of briefing him on the progress of the project. As an aircraft that is not a completely new design, the JH-7 has no extra space inside the fuselage to insert other electronic equipment, so it can only remain roughly the same. The difficulty in the transformation process actually mainly comes from the relatively high intensity of the past few years. Body deformation caused by use. ?Especially when it comes to some important structural parts, if you build a new one completely according to the data on the original design drawing, you may not be able to replace it. ?This is actually a common problem faced when refurbishing second-hand mobile phones, or mid-life upgrades, and it is also why it often takes longer to overhaul one than to build a new one. In the future, engineers will generally use 3D laser scanning and 3D printing to solve this type of problem, but in 1997, Chang Haonan and the others could only rely on manual measurement of deformation and the experience of veteran workers to solve this problem. Another more troublesome thing is caused by the foundation of the old aircraft. When the JH-7 was being designed, the Chinese Air Force had only a few aircraft equipped with radars, and had never considered such a lofty upgrade as an electronic warfare modification. Hence, there is not enough space reserved for transmission lines, and the aircraft power supply is not modular in design. ? ? Yao Mengna and the others had no choice but to let several subsystems share the same power line and common ground line during the early transformation. As for the space problem of the aircraft, although the structure of the aircraft cannot be significantly modified, we can dismantle some unnecessary equipment, and at least install the receiving antenna for passive radar into the aircraft. Chang Haonan can do without other things for the time being. Anyway, this J-Handian 7 is planned to be closer to an air defense suppression combat platform like the F16CJ used to perform SEAD (of course there is anti-SEAD in China) missions, and similar to the EA6B and A full-time electronic warfare aircraft like the EA18G will definitely have to be newly designed on the future J-11 platform. But as the basis for the entire improvement, the signal receiving antenna of the passive radar cannot be omitted. Unnecessary equipment? ?Yao Mengna and Tang Changhong, who were standing next to the plane, were both stunned. There is no unnecessary equipment on something like an airplane. Just like a machine gun. Chang Haonan said as he walked forward and patted a double-barreled 23mm cannon on the lower right corner of the JH-7 fuselage. The nose position must still be reserved for the original flat slot antenna, so we need two antennas responsible for passive signal reception in the lower hemisphere and upper hemisphere respectively. We can slightly modify the vertical tail of the aircraft on the top, and install it on the bottom where the cannon was originally. In fact, this is also a common practice for several later electronic warfare aircraft. After all, with the development of the times and the advancement of close combat missile technology, there have been fewer and fewer air combats where cannons can be used. As for letting electronic warfare aircraft go into dogfights, even normal people cant do it... But if the cannon is removed, will the combat capability of the aircraft be affected..." Tang Changhong, the general person in charge of the new model of Feibao, is still worried. This is not just a matter for the aviation industry sector. In the mid-to-late 1990s, the training methods and organizational capabilities of the aviation force were far less flexible than they would later be. It can even be said to be a bit dogmatic. ?For example, at the beginning of this year, the Air Force conducted new tactics training, which required mobilization at the entire military level. Of course this is also a no-op solution. Since the overall training level of the aviation force has been difficult to describe in the past thirty years, if such strict restrictions are not implemented and the basic skills are clarified first, it is impossible to know how many mistakes will be made. In this environment where the Chinese Air Force has not even completed missileization and has only a few dozen aircraft with beyond-visual-range combat capability, gunfighting is the main or even the only combat for quite a few units. Way. Hence, in the training syllabus, both air and ground shooting from machine guns account for a large share. If you now create an aircraft without cannons, it means either updating the training standards, or developing a completely new syllabus for electronic warfare aircraft as a new aircraft category. Training standards involve assessment standards, and assessment standards involve assessment results. In peacetime, assessment results are closely related to a series of personnel work such as awards, job promotions, etc. In short, a single move can affect the whole body, which is far from being summed up by "If there are no machine guns, then there will be no training." Lets take a longer-term view. This is no longer the 1970s. Missiles have undergone earth-shaking changes compared to those years. Besides, it is impossible for electronic warfare aircraft to engage in combat. Chang Haonan certainly knows the twists and turns involved, but as the complexity of aviation operations continues to increase, more flexible training and organizational methods are imperative. ?If that doesn''t work, you can also throw this single aircraft together with the Y-8 platform special aircraft of the North Sea Fleet. In short, as long as the thinking does not slip, there are always more solutions than difficulties. Tang Changhong held the side of the plane and lowered his head to think. On the one hand, what Chang Haonan said does make sense, and in recent years, the aviation forces of the Navy and Air Force have indeed updated their combat methods and training methods. On the other hand, there really is no better solution. The landing gear bay of the JH-7 is designed inside the fuselage. The advantage is that it frees up wing space for large-sized ammunition. The disadvantage is that it takes up a considerable part of the fuselage space. There is really no free space left. If you do not dismantle the cannon, you can only dismantle the pylon on the center line of the belly. More troublesome. So he nodded in the end: Okay, lets change it according to your plan. "In addition, the overall power supply strategy needs to be modified. It is expected that the No. 3/7 rack set aside for the electronic warfare pod and the radar system will share the 115V/400Hz AC power supply on the engine, and the remaining equipment will use another one to avoid Because drastic changes in the power of electronic warfare equipment cause impact conduction interference. Also, the power supply network must use a two-wire system and a shielding method. The control cables of each subsystem must be shielded and the ground wires must be shielded. Wave protection sleeves must be used and the ground wires must be assembled 50cm apart to ensure good grounding..." Chang Haonan talked about the experiences he could think of one by one. These were summed up in more than ten years of work in his previous life. As for many things in engineering, if there is no master to guide you, you will only make progress if you suffer a loss. For example, the issue of separately supplying power to the weapon system and the electronic warfare system was because in a certain model he participated in, the passive jammer launcher and another active jammer launch system initially shared the same "bucket E bus bar" "Power supply, and the latter will produce impact interference when powered on under certain circumstances, causing the primer of the interference bomb launcher to be fired, resulting in accidental projectiles. ?This fault that "the aircraft will automatically release infrared decoys as soon as the jamming system starts working" troubled the project team for a long time. It was finally discovered that it was caused by the internal resistance coupling of the public power supply. In short, with Chang Haonans not-so-deep involvement, the final stage of the J-Handian-7 modification work was progressing smoothly. ??Now there is only the last piece of the puzzle left before a complete "Wild Weasel". Anti-radiation missiles. (End of this chapter) Chapter 274 Old models also have new spring Chapter 274 Old models also have new spring The general anti-radiation missiles used by China in the previous life were the kh31P and the YJ-91 developed on its basis. ?With a range of more than 150km, a speed of Mach 3.5, and a 100kg super large warhead, even if the opponent shuts down and runs away, a near-miss is enough to destroy the entire radar. ??It is a hero among anti-radiation missiles. ??But this thing doesn''t seem to be very complicated. In fact, it requires an integrated ramjet engine that China cannot yet make. It is not a model that can be built quickly and flatly. Therefore, when the Thunderbolt 11 completed the air-to-air target test at the Dingxin base, Chang Haonan took the opportunity of the celebration banquet to mention to the staff of the Second Bureau of Electromechanical Engineering that the relatively thick body of this model could be used to modify a Light anti-radiation missiles are coming. Because air-to-surface weapons have an inherent advantage in gravity potential energy, and they do not need to be as fast as air-to-air missiles, they can replace slow-burning propellants, and the range should be much better than the 30km of Thunderbolt 11. More importantly, it does not involve too many new technologies and can be produced and equipped with troops in a very short time. ?Let the aviation force have something to use first, and then get familiar with the tactics and tactics. Although it is said that it is better to let people wait for equipment rather than let equipment wait for people, the actual situation is that if you do not have even the most basic abilities, void practice is likely to go in the wrong direction, and it is better not to practice at all. I just dont know if there is anyone promoting this anti-radiation model and what the progress is. The Second Bureau of Mechanical and Electrical Engineering is a unit of the aerospace system. Chang Haonan has not dealt with them much so far, at least not familiar enough to get all kinds of information by just making a phone call, so he simply entrusted Guo Lin, who has returned to Jinling, to inquire. . As time goes by, this electronic combat flying leopard that everyone has high hopes for is increasingly revealing its final image on the drawings. Since most of the aircraft modification work had been completed before Chang Haonan got involved, and the amount of subsequent modification work was not large, it soon came time to return to the blue sky. ?Of course, test flights are quite serious matters, and its not just about finding a pilot to fly around in the sky. ? Relevant data recording and collection work, as well as flight safety assurance, require assistance from the flight test institute. If there are too many people, you will need to queue up. When Chang Haonan went to apply, he was told that a new model aircraft was going to be transferred to Yanliang for testing that afternoon, and there were also foreign delegations visiting the test flight process, so it would take three days at the earliest before it would be their turn. JHD7. It doesnt take long, so I can afford to wait. ?However, Chang Haonan is still a little curious about which model is going to be exported. ? ? In the 1990s, apart from the clichd J-7M, the other highlight of China''s air force equipment exports was the K8, which was also deeply customized according to the needs of various countries. ?This small, straight-wing, subsonic aircraft is very suitable as a low-cost ground attack aircraft. For example, some Southeast Asian countries will require the ability to mount British-made aerial bombs. ?Other than that, there are some bits and pieces like Y-12 and Z-9, but these models basically do not involve modification, so there is basically no need to fly to Yanliang. ?So before he left, he asked the director of the dispatching office: Do you know what model it is? The one that came in the afternoon. ?As soon as the plane lands, basic information such as the model is no secret even to the surrounding wall-crawlers, so Chang Haonan can naturally ask directly. A new variant of the J-7 from the 611th Institute, the tentative number is J-7F. Hearing this answer, Chang Haonan was stunned for a moment. He is familiar with the J-7F. ?Although he was not directly involved in the overall design of this model, the mandibular air intake that was the core of the improvement plan was the starting point for his journey after his rebirth. And the matching work of the inlet and the turbojet 14B engine was completed by Chang Haonan. I just didnt expect the efficiency of Factory 132 to be so high. It was only in early April and the prototype had already been built. Even if this aircraft uses almost no new technology, the speed of building a new aircraft in more than two months is really impressive. The other party probably thought he wanted to contact the other party to jump in line, so he continued to answer: "However, the foreign delegations coming here are quite big, so it may be difficult to jump in. Besides, your model is not convenient for exposing too much in front of foreigners. They can enter the parking area directly. If they see it, The details are bad. Oh, thats not what I meant. Chang Haonan waved his hand: Just asking to see if I can meet anyone I know here. "That''s probably up in the air. I remember you seemed to be..." The director of the dispatching room seemed to suddenly realize something when he said this: Hey, I remembered that you are not from the 601 Institute. Why is it that now you have a share in the 172 Factorys modification of the JH-7? Chang Haonan had only been to Yanliang once before, the time when the No. 01 prototype of the J-8C made an emergency landing due to surge, so the dispatch room naturally thought he was from 601. "Well...I can''t be considered as a member of Institute 601. If I have to say it, I should be regarded as some kind of foreign aid..." Chang Haonan couldn''t explain his current somewhat awkward status for a while, so he had to explain vaguely, and then found an excuse to go for lunch and escape. That afternoon, the first thing to arrive was a Boeing 737. A group of foreign soldiers wearing blue fur coats walked out. ??It seems that Pakistan is the only country that uses sweaters as jackets and hangs various military rank accessories on them. ?Then the identity of this foreign user is self-evident. After all, in the original timeline, they also purchased a batch of 57 J-7PGs around this time. ??The cost of the current J-7F is not much higher, but its combat effectiveness has been significantly improved. For a country with a small area, it can even be used as a small F16, so it is normal for it to be favored. ?Shortly after the Boeing 737 landed, an aircraft that Chang Haonan had only seen on the drawings provided by himself or Lu Yuying landed lightly on the runway of Yanliang Airport. Perhaps because there was a flight show the next day, this prototype marked 02 did not retain the original color of metal or composite materials like most aircraft during the test. The all too common yellow-green camouflage. What is even more unusual is that the plane flying to Yanliang actually carried two PL8 and two PL11 air-to-air missiles under the wings, which were directly displayed in front of everyone in combat mode. Generally speaking, prototypes are not so eager to test weapon systems in the early stages of test flight. This is obviously a special arrangement when facing customers. ?Especially those two PL11 semi-active air-to-air bombs. ??On New Year''s Eve this year, two J-8Cs shot down a MiG-25, proving the performance of this missile. At least not worse than mainstream foreign models such as AIM7 and R27. Chang Haonan doesnt believe it if the Pakistan Air Force, which almost witnessed the interception with his own eyes, had no idea at all They do not yet have any aircraft capable of firing medium-range bombs. Depending on the customer''s choice, the J-7F can be equipped with the EL/M2032 small pulse Doppler radar produced by David Guo, or the KLJ7 radar, a similar product being developed by the 14th Institute of Electronic Science and Technology of China. Both are capable of locking onto typical fighter-sized targets at a distance of 30-40 kilometers and guiding the PL-11 to attack. For many small countries in the 1990s, this was a direct attraction. Sure enough, Chang Haonan noticed that when the plane slowly passed through the taxiway, the foreign soldiers on the tarmac not far away burst into cheers almost in unison. Apparently it works well. (End of this chapter) Chapter 275 The aviation industry has made a lot of money this year Chapter 275 The aviation industry has made a lot of money this year Since there are foreign customers present, it is inevitable that the accompanying personnel of the Aviation Technology Group and the 611 Institute will have a dinner to entertain them that evening. ?But before that, Chang Haonan still took advantage of his free time in the afternoon to find Lu Yuying who was preparing for tomorrow''s test flight in the temporary hangar. As the chief designer of the J-7F, it is impossible for him to be absent at such an important time. Comrade Xiao Chang? Suddenly seeing Chang Haonan in this place, Lu Yuying was also quite surprised: Why are you here with Yan Liang? I heard that you went to Jinling Institute 14 to support the project? I was at the 14th Institute before, but the products they have there also need to be tested, so I need to use the No. 713 aircraft from the Flight Test Institute, so I came here. Chang Haonan looked over the opponent''s shoulder and looked at the J-7F behind him that had just finished its ground demonstration and parked shortly: Mr. Lu, you are very efficient. In less than three months, you have already built the second prototype. Its a small plane with a simple structure. Besides, its all thanks to you. ??Lu Yuying took off the greasy woolen gloves on her hands and put them aside, patted Chang Haonan on the shoulder and said: "Because the overall structure has not changed much, many parts do not need to be modified. You can just use the backup parts in the factory. In addition, this is not actually the second aircraft. It is just the first prototype of the newly built J-7F2, 02 In fact, it is a representative model. "Furthermore, Pakistan bought 80 aircraft this time. This model was built with our own funds. In addition to handing over and retaining funds for use, part of the profits can also be distributed to employees as benefits. Factory 132 Naturally, I am very motivated. In recent years, many peoples families have only been able to eat meat once during the holidays. They are so poor..." The latter also remembered at this time that the 611 Research Institutes plan for the J-7F was divided into two types: the F1 type, which was upgraded from the old aircraft, and the newly manufactured F2 type. They all bought the F2 model? ? Chang Haonan doesnt know much about the economy, but his impression is that the situation in Pakistan in the 1990s was not optimistic. Otherwise, General Pervez would not have gone to Luogu with a sword... At this time, it was already 1997, and some signs of the famous Asian financial crisis had already emerged, especially in some small countries, which even began to be negatively affected. ??He also thought about whether he could take advantage of this opportunity to make a fortune, but he really had no knowledge in the relevant field. He only knew that it probably broke out in July this year and lasted until nearly the millennium. At this time in his last life, he had just confirmed that he had successfully passed the postgraduate entrance examination, and was working day and night to complete the project. Naturally, he had no time to pay attention to these news. Later, he worked in technology for half a lifetime, and he never looked back to understand the ins and outs of this storm. In short, I regret it, very much. ?But there is nothing you can do about it, human energy is limited after all. ? And it seems that China did not suffer terribly in this round of financial crisis in the previous life, otherwise Chang Haonan would not have no impression at all. ??However, it has to be said that Pakistan is very courageous to be able to buy such a large number of fighter jets in one go despite the cold wind blowing in its economy. "That''s not true. There are 48 new aircraft, and the remaining 32 are refurbished J-7Ps that were previously exported. If the results are good, there may be additional orders for the F1 type later. However, this time there will be flight demonstrations and actual aircraft experience. Naturally, the F2 model has better performance. Turning around, Lu Yuying, who had just walked to the side of the plane, shook her head: In addition, according to the information disclosed by the Aviation Technology Group, a considerable part of the payment paid to us by Pakistan this time was paid by the Gulf countries. Gulf countries Chang Haonan followed the other party, and the image of a big dog owner wearing a white turban appeared in his mind: "Even if you know this kind of news, there is something in the Aviation Technology Group." ??It is not uncommon for these countries that are extremely wealthy in the physical sense to directly use their money to support the armies of other countries, but it is usually done secretly. After all, it is not an honorable thing for both parties, and there is no need to publicize it with great fanfare. In fact, it cannot be regarded as knowing. ?Lu Yuying thought for a moment and replied: The main thing is that the money we received, in addition to the normal international payment methods, also included a considerable amount of US dollar cash. This form is so unique that it is not difficult to guess the source of the money..." ?Alright... ?Thats no wonder.????In this kind of arms business, collecting payment has always been a long-standing problem. ??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? With the payment in arrears, this is already considered a basic operation. In the end, it''s not impossible to change to bartering. Not only poor countries like to play this game, but also some rich countries. The big dog owners are a breath of fresh air. Not only did he spend generously and never defaulted on payment, but he also paid for everything in hard currency. So everyone likes to do business with them. Speaking of which, the fact that the Gulf countries suddenly spent such a large amount of money indicates that they have any other ideas for our other equipment in the future? ?Chang Haonan''s thinking quickly spread out. ??The princes are indeed spending a lot of money, but they are not mindless boys who spend money. The money they spend has a purpose. But it is indeed a bit unrealistic to say that these rich people are interested in the J-7F. It seems that it can only be explained as having ideas for other equipment. After all, Saudi Arabia, a typical representative of the Gulf countries, did buy a number of big guys from China. This is it...I hope so too. Hearing this conjecture, Lu Yuying turned around and said with a smile: "But I think it''s more likely because they want to check the Persians. You know those countries'' armies, although their equipment is very good, but their combat effectiveness...there is indeed a lot of room for improvement." ?This statement is really a bit high in emotional intelligence, but after all, they are also potential customers, and it is not easy to say something too harsh even behind their backs. After a little thought, Chang Haonan was very sure that this had not happened in his previous life. At that time, Pakistan urgently purchased a batch of J-7PG to deal with the threat of its old rival in Kashmir. Hmm...it seems that the Persians have made some moves recently? Persia Just as Lu Yuying was about to answer, he was stunned: "you do not know?" Dont know what? ?Chang Haonan looked at the other party with an expression that he should know and was a little confused. Oh, I forgot, you probably havent returned to Shengjing during this time. ?Lu Yuying walked around the wing and came to the engine and said: "Just last month, Persia found 601 Institute, 410 Factory and 112 Factory and placed a big order to overhaul and upgrade their 24 F14As and 112 F4Es. It is the largest order ever received by the aviation industry. One of the orders, no matter what happens in Persia and Saudi Arabia, we will definitely make a lot of money this year. " Can Persians pay directly in U.S. dollars? ?This big news made Chang Haonan a little dizzy. In the previous life, China also upgraded a batch of F4s for them, but the amount of the project was very small and definitely could not meet the description of this "largest order in history". "That''s not possible, but the news I heard is that they directly exchange oil. In the past two years, the country has changed from oil export to oil import, and it coincided with the high oil price at the beginning of this year. Although this order is not as good as directly earning US dollars, it is still It can save a lot of foreign exchange. In the 1990s, the oil price of more than 20 US dollars per barrel was already very high in everyone''s mind. I wonder if people at this time knew that before Chang Haonan was reborn, the international oil price had hit nearly 150 US dollars per barrel in 2008. What would it feel like to record (The content of the next chapter needs to be adjusted, so it will be updated in the afternoon or evening) (End of this chapter) Chapter 276 Tame air currents Chapter 276 Taming the airflow ?While the two were circling the plane and chatting, the ground staff from the 611 station had also begun to perform maintenance on the plane. Although the J-7F has undergone a complete overhaul in appearance, it is still a MiG-21 in essence, and its performance in terms of maintainability is still relatively average. ??The biggest improvement was the use of a side-opening radome at Chang Haonan''s insistence, so that there was no need to take the trouble to remove the entire nose cone and place it on the ground when maintaining the radar equipment. ?He reached out and touched the air intake lip and radome that he had optimized and designed by himself. ?Although the aircraft in front of me is different in details from the one shown in Professor Liu Hongbos class nearly a year ago, the overall structure is still very similar. ??Most of the projects that Chang Haonan has handled so far are key technology research and development or modification of old models. After all, the feeling of "the aircraft I drew has landed on the ground" is different from the J-7F. From a relatively close position, he could already see that the aircraft''s radome actually contained an old radar. Is this 208A? At present, China''s radar models are still on the eve of a technological explosion. There are only a few models that can be installed. Among them, there are models that can be truly called "radar" rather than range finders, and can also guide semi-active radar bombs. Except for the 1471/1472 on the J-8C, basically there are only 208A left. ??This is the radar that was equipped with the J-8B in the past. This model was used by the Air Force for the first time to successfully complete the Aspider target shooting test. Yes, the 1452 small-caliber radar originally planned to be developed by the 14th Institute is still undergoing ground testing and cannot be installed for the time being. However, we have to demonstrate the beyond-visual-range interception capability this time, so we can only use this first. Speaking of this, Lu Yuying seemed to suddenly remember something: Would you like to take a photo? This time we specially brought a camera. ?Chang Haonan hesitated for a moment, and finally nodded: Also good. I just happened to call the pilot comrade over, and Im going to take a group photo with the outsiders later. Hearing what Lu Yuying said, Chang Haonan noticed that in addition to the ground staff, there were also some staff who were not wearing work clothes, but were still busy. He has already seen banners and traditional arts of the aviation industry such as big red flowers in the hands of these people. Finally, Chang Haonan and Lu Yuying took a single photo standing on the side of the opened radome. At this time, a pilot wearing a blue cotton jacket trotted over from a distance, carrying a white flight helmet with a red star in his hand. ??The pilot is not fine after getting off the plane. He still needs to hand over to the ground and fill in the flight record. Judging from his appearance, he must have just come from there. Chang Haonan originally felt that he had already asked about everything he wanted to know before, and he did not want to participate in the group photo with foreign parties, so he was planning to go back and rest. But as the pilot got closer, he found that the other person turned out to be a familiar face. Comrade Zhang Jiujiang? The person who came here was the flight instructor who took Chang Haonan to the sky in a J-7 when he first participated in the 83rd Project to observe the air flow separation condition on the surface of the No. 03 prototype. In this day and age, there is no contradiction between the two identities of senior flight instructor and test pilot. But this meeting was quite surprising. Zhang Jiujiang, who was directly called by his name, also stared at Chang Haonan for a few seconds. It wasn''t until he walked closer that he remembered the latter''s identity: Are you the... engineer from the 601 Institute? Have you ever flown on my plane? Uh...yes, we worked well together that time. As soon as Chang Haonan nodded, he heard Lu Yuying interrupt next to him: Old Zhang, Xiao Chang cannot be considered a 601 person ?This topic is already considered a daily topic for the former, but Lu Yuying feels that she should emphasize it, lest the other party forget the promise she made to 611 years ago. ??Although this commitment has nothing to do with his project. "Don''t worry, Mr. Lu. During this time, when I was helping them modify the JH-7 at Factory 172, I specially requested a lot of data from the test flight of the prototype that year, which can be used later when studying active stability control technology. of." Chang Haonan looked at Lu Yuying who looked nervous, and naturally understood the meaning of the other party''s words, so he quickly spoke to comfort him. Active stability control This term is indeed a bit general, and it is not even possible to directly determine which subsystem of the aircraft the technology is used in. This is something I have been thinking about since I completed the flutter analysis of the MA-60 wing for 603 last year. Chang Haonan, who knew this was a brand new concept, explained: Since the flutter of the wing can be controlled through active means, can a similar idea be used to control, or at least predict the engine surge in advance? "Later, when I was responsible for improving the turbojet 14, I discovered that before the engine entered the surge state, there were actually some observable characteristics inside the compressor. If we could intervene in time at this time, we could improve the performance to a large extent. Avoid entering abnormal operating conditions, or at least maintain a spinning stall, so as not to cause damage to the engine and the aircraft itself. " ??Lu Yuying and Zhang Jiujiang next to them both brightened up after hearing this explanation. Engine surge is one of the most undesirable faults for both aircraft designers and pilots. Since it is a self-excited oscillation of the air, once it actually enters the surge state, it is too late to save it. ?Especially when flying at low altitude, high speed or with heavy g-load, if power is lost and the aircraft becomes unstable, there is a high probability that there will be no time to deal with it and the aircraft will be destroyed and everyone will be killed. Surge is prone to occur under these circumstances. Many first-class accidents are caused in this way. For pilots, even if they discover the problem just one or two seconds in advance, they can avoid accidents to a large extent. If this is the case, would it be possible to install a sensor inside the compressor... Zhang Jiujiang is naturally the most excited. Its not that simple. Chang Haonan smiled and shook his head: "On the ground or on the test bench, the external airflow is relatively stable, and the accuracy of capturing abnormal conditions is relatively high. However, under real flight conditions, especially for fighter jets that require frequent large overload flights, even if no occurrence occurs Surge, the flow conditions of the compressor are also relatively chaotic, and if you just put a sensor, the false alarm rate may be very high. " For automatic control systems, the severity of false alarms and missed alarms is at least the same. So you are going to verify this system on the J-10? ??Although Lu Yuying is not responsible for Project No. 10, he is naturally concerned about the projects of the same institute. "Yes, in order to achieve active stability control, the premise is to integrate flight and propulsion. The most promising one at the moment is the J-10 that uses a three-axis four-redundant digital fly-by-wire flight control system. And on the other hand, Single-engine aircraft also have higher safety requirements. In fact, the J-10 itself has achieved full-envelope first-level flight quality and no scruples control at the aerodynamic level. What Chang Haonan wants to do is to achieve this at the aviation power level. ?But he had another reason that he didnt say ?The air inlet of the Su-27 is a bit too simple, and it is possible that data under some specific circumstances cannot be collected... (End of this chapter) Chapter 277 sea ??and air confrontation exercises Chapter 277 Sea and Air Confrontation Exercises ?Chang Haonan''s explanation directly raised the expectations of the two people opposite. It is also equivalent to saying that he will definitely not let go of the 611 pigeons, which can be regarded as a reassurance for Lu Yuying. I cant help it, even though its a painted cake, its really delicious. Its a pity that I probably wont have the chance to fly to Project 10 After a long time, Zhang Jiujiang sighed and said with a hint of regret. ?Although he has flown almost all types of aircraft currently equipped by the Air Force, the J-10, as the first third-generation aircraft designed and manufactured by China itself, naturally has a very different meaning. Every person doesnt want to experience it whenever they have the chance. Is Instructor Zhangs age okay? ?Chang Haonan took a look at the opponent''s condition. He looked like he was in his 40s. Even if he was in the fighter force, he could still fly for about five years. "I am 39 this year, so my age is not bad, but I was temporarily seconded from the aviation school because the test flight team was short of manpower. After the selection results of the new batch of test pilots are announced in two months, I will return to Kuancheng to work as a flight instructor. " ?Zhang Jiujiang put the flight helmet in his hand on the table beside him and explained to Chang Haonan: If all our aviation schools use J-10 for air combat training, then we probably wont be able to rely on it in the next ten years or so. "I see" There is really nothing we can do about this situation, and we cannot interfere with the personnel changes of the Air Force. Moreover, judging from Zhang Jiujiangs accent, he should be from the Northeast. Staying at Kuancheng Aviation School may not be a bad choice. If you cant fly a new-generation fighter jet, you still have a chance to fly a new-generation trainer aircraft. The three of them chatted for a while. Chang Haonan saw that the members of the Pakistani delegation who had just gone to the guest house to rest had appeared in the infield one after another, and said goodbye to Lu Yuying and Zhang Jiujiang. When he left the infield, he happened to meet the director of the dispatching room again. Good afternoon, Director Yang, we meet again. "afternoon" ??The other party seemed to be thinking about something while walking. Halfway through his subconscious reply, he realized that the person walking out of the infield was Chang Haonan, whom he had just met in the morning: Engineer Chang? Do you know the people from the 611 Office? The tone was full of shock. Oh I have collaborated with them on projects before, so I know a few people. After hearing this answer, Director Yang couldn''t stand it. As a veteran who has worked in Yanliang for more than ten years, he has certainly seen the kind of big boss with connections throughout the system. But I have never seen anyone of this age. ?According to Chang Haonan''s age, he is generally a hard-working young man who has just entered the industry. It would be good if he can recognize all the leaders of Party A who work with his research team. And wandering around the infield as struttingly as the person in front of you is definitely not as simple as knowing "a few" people. ?However, if others wanted to keep a low profile on this kind of thing, he would not be stupid enough to expose it directly. He would just secretly remember this slightly younger face in his heart. This boy has a lot to do in the future.jpg In fact, the leaders at Yan Liang knew the general situation of Chang Haonan. Its just that the former has been involved in the aviation industry system project through Du Yishan and Yang Fenghao from the beginning, so apart from direct business contacts, he has never had any contact with middle-level cadres like Director Yang... ??As for the J-7F''s flight performances and ground demonstrations, it lasted for three days in total. Chang Haonan also had the opportunity to intuitively appreciate the performance of his "pioneering work." In the last life, when Chang Haonan actually started working, the few J-7C/Ds had been retired, so he had not seen the flight performance of this model. But he has seen the J-7B and J-7E in huge numbers. The newly manufactured J-7F2 is equipped with a double delta wing similar to the E-type. It trades a certain high-speed performance for better maneuverability at high subsonic speeds, at least within the visual range of the telescope. It can be seen that compared with the lighter J-7E, this model does not fall behind in terms of turning radius and climbing ability. As for the beyond-visual-range combat capability, let alone it, it is completely the difference between 0 and 1. Thinking about it, Im still a little proud. Of course, in the past few days, the people responsible for improving the Flying Leopard were not idle, but jointly began to design the entire test flight process. Compared with all Chinas past aircraft, the JH-7 has two completely new functions. The first is to carry out forwarding interference to C-band or X-band radars with frequencies in the 6-9Ghz range, and the second is to achieve passive detection with the help of third-party non-cooperative electromagnetic wave signals. Both of these items need to be tested. ?At present, the largest number of air defense systems equipped by the Chinese army is the Red Flag 2 and its various improved versions. The fire control radar used works in the S-band. The American pod was designed with band optimization based on the old Soviet-made anti-aircraft missiles, so it can operate in the S-band. When Chang Haonan chose the interference range, he naturally had to target the Patriot system''s AN/MPQ-65 radar and Standard 2 system AN/SPG62 illumination radar. The newly introduced S300PMU1 system does have a C-band radar, but these few systems are currently deployed around Beijing and Shanghai, and are still in the training stage of tactical tactics. They have not yet fully formed combat capabilities, so they cannot be used casually. Transfer away. As for directly conducting tests around the two core urban areas, don''t even think about it - if the electromagnetic interference capability does not meet the standards, it will be fine. If the interference effect exceeds expectations, it will make big news. ?So after going back and forth, the flight test institute finally set its sights on a new model that Chang Haonan also handled - the Y-8J air surveillance aircraft. The SouShui 2000MS radar bought from the UK happens to work in the X-band. ?Although the original design intention of the Yun-8J was to cooperate with the JH-7 to search for sea targets, this model has had certain air search capabilities from the beginning. It is also a preliminary exploration of the Chinese Navy''s use of early warning aircraft. Another advantage is that the Y-8J belongs to the naval aviation force like these JH-7s, which can avoid the cross-service coordination problem that is quite troublesome in this era. This is a way to achieve multiple goals with one stone. ??Guo Lin, who had already rushed back from Jinling, looked at the plan on the paper that had been revised many times: But we also need a third-party signal source, which is not limited to any band, to test the effect of passive radar. Lets go with Yun-8J and find a naval radar station. ?Someone next to me suggested. The representative from the Flight Test Institute shook his head: But there is no way for the naval radar station to be moved inland. It is better to get a radar directly from your Electronic Technology Group. If you put it that way, it would be a bit troublesome to move the radar from Jinling to the northwest... At this moment, Chang Haonan, who had not expressed his position just now but just lowered his head in thought, suddenly raised his head: In fact, we dont need to limit our sights to the inland. How to say? Everyone looked at Chang Haonan at the same time. It is completely possible to conduct testing at sea. Anyway, for a long time to come, the imaginary use environment for the JH-7 and Y-8J will be outside the coastline, and the electromagnetic environment at sea will also be relatively clean. One more thing, I remember that we have a fleet of ships visiting outside? One sentence made everyone look at each other in shock. At this time, there is no search engine that can find relevant news instantly. Fortunately, in units within the system, there is always no shortage of newspapers, and people quickly found relevant news. Thats right, a destroyer and frigate formation will set off in March to visit Southeast Asian countries and is expected to return this weekend. What about the specific ship configuration? ?The man looked down at the newspaper again: No. 113 Daocheng was put into service last year, and No. 542 Ngee Ann was put into service in 1994. The configuration of one 052 and one 053H2G. In 1997, it was the strongest destroyer and frigate combination that the navy could produce. In this case, both ships have air detection capabilities. ?Chang Haonan confirmed his thoughts: So, if the navy is willing, it can take advantage of our electronic warfare test to conduct a joint sea-air confrontation exercise while the formation is returning home. (End of this chapter) Chapter 278 I am an army alone Chapter 278 I alone am an army ?This suggestion instantly opened the minds of everyone in the conference room. ?In the era before Chang Haonan was reborn, it was commonplace for the navy to engage in long-sea training, and it was basically the norm for the navy to have two or three fleets of ships performing missions in the ocean. But in the late 1990s, this was a scene that was unimaginable. Since the long-term "equipment maintenance costs" are really only enough to maintain the basic existence of equipment, not to mention ocean voyages, the ship fleet does not even have many opportunities to go to sea. This further leads to insufficient personnel training and experience. As a result, most training subjects can only be carried out in ports or even on shore. Normal formation navigation is often a big job for the navy that requires senior officers to lead the team. As for the more complex tactical exercises, there are even fewer. In many cases, coordination at the fleet or even service level is required to complete. ?Although some attention has been paid to training in the past two years, the situation obviously cannot be changed overnight. The key is poverty. ?Although military expenditures are rising, they are basically rising in the procurement costs of the most urgently needed equipment, and other places can only rise slightly later. In this context, it is obviously a rare opportunity to take advantage of the return of the visiting fleet and aircraft testing to conduct an exercise without spending extra money. ? And in terms of publicity, this kind of multi-arms confrontation, even in a truly complex electromagnetic environment, can be regarded as close to actual combat. So it stands to reason that the Navy should not have any objections. ?No one has any opinion on this. The following are some details. So we are going to use JH-7 and Yun-8J to fight against the Ichigo-Ichigo formation? Isnt it a bit too bullying..." ??Guo Lin asked hesitantly while looking at the newspaper in front of him. This is a configuration that the navy has always had high hopes for, so its not surprising that he thought of it immediately. ??The most conspicuous place in the newspaper was a black and white photo, which was a photo of two ships taken at the Sattahip naval port in Siam. ?According to reports, there were a large number of visitors, especially the local Chinese community. It is a ship from home after all. However, as the most advanced models of the Chinese Navy, the Haihongqi 7 and Hongqi 61 equipped by the two are still only short-range point air defense equipment with an effective range of no more than 10 kilometers, and can only attack one target at a time. Basically, they only have theoretical capabilities. air defense capabilities. ?For them to face the electronic warfare aircraft that symbolizes the highest level of China''s current electronic warfare, and add an air surveillance aircraft, there is really no "confrontation" value. "That would be of little value, either to us or to the fleet." Chang Haonan naturally took this aspect into consideration, so he immediately shook his head: "My plan is to simulate that our warship formation is attacked by an imaginary hostile sea attack aircraft group. Electronic warfare aircraft will come forward to protect the formation, and use the electromagnetic waves emitted by the ship-borne long-range warning radar to find the opponent''s command through passive radar positioning means. machine, and then shot it down in one fell swoop. ?As far as maritime conflicts that may break out at this stage are concerned, this is the real situation that the Chinese Navy, which seriously lacks regional air defense capabilities, is more likely to face. And the configuration of both parties after such adjustment is obviously much fairer. ?Although the Y-8J has only one aircraft, it essentially simulates an attack group. As long as two ships continue to appear within its radar search range for a period of time, it can be determined to be destroyed. ?Of course, there are only one or two interesting simulated attack aircraft that actually take off behind the Y-8J, and any more will not be able to fly. ?However, in order to add some actual combat atmosphere, you can consider launching a few low-altitude target drones simulating anti-ship missiles, so that the two surface ships have something to do, so as not to act as an atmosphere team throughout the whole process. ??Another reason why Chang Haonan didn''t say it just now is that the revised plan can prevent a senior commander on the Daocheng from being too embarrassed when traveling with the formation. In short, this idea was quickly set as a final test plan for submission. For laymen like them in military command, the plan can only go as far as this, and the more detailed parts can only be completed by the navy.??? Two days later, the application for this confrontation exercise was approved as expected. So, Chang Haonan and others, who had everything ready, took a Y-7 and followed the JH-7 to a military airport in Donglai. With the participation of Chang Haonan, the first Y-8J, which was completed nearly two years earlier than the original timeline, was delivered two months ago to the 4th Regiment of the 2nd Hainan Division, the only special aircraft unit in the army. try out. Although this regiment currently only has 8 aircraft (the other 7 are Y-8X patrol aircraft and Water H-5), it is still the treasure of the entire naval aviation force. This can be seen from the conditions of their guest houses. After a half-day rest, preparations officially started. Since it is an exercise, there must always be a process of coordination and deduction by the director before starting. ??High-fidelity exercises like Zhu Rihe''s without any prior plans are a no-brainer these days. If you dare to do it, you will cause trouble. You havent even learned how to walk yet, so you definitely cant expect to be able to run just by taking one step at a time. ??And in the final analysis, the confrontation exercise is just a sideshow. After all, the main purpose this time is to test the JH-7 and the No. 2 pod. From the perspective of cooperating with the test, the other two parties involved must also know what the general process is. As a brand-new equipment, the Y-8J was personally driven by regimental commander Shen Tao and served as the blue force in this exercise. He was also paired with two H-6Ds from the regiment next door to the same division. They will be responsible for simulating two formations of attack aircraft launching an attack on the red side. Actually, it fires two target missiles modified from the Eagle 6. This is also the most expensive part of the entire exercise. ?There is no other way, the conditions are limited, we can only let one aircraft act as an army. As for the red side, apart from the two warships in the plan, there is only the JH-7 that Chang Haonan and the others brought over. Are you sure you want to challenge three of us with one plane? Shen Tao knew that the two warships with only short-range air defense capabilities were not qualified to participate in the confrontation. He turned his head and glanced at the fighter-bomber parked on the apron outside the window. From the appearance point of view, compared with the normal JH-7, it only has a few more exposed antennas. Although he is the leader of the special aircraft regiment, he has also cooperated with the J-H-7 of the neighboring troops before, and he is very clear that except for the name "Fighter-Bomber" and the fact that it has good maneuverability, it has nothing reliable. The main problem with air-to-air capabilities is the lack of radar with excellent performance, which makes it impossible to capture targets in time in the open sea. So, although the three aircraft on his side are not capable of air combat, the criterion for winning the exercise is that as long as the simulated attack is completed, the Blue Army will win, so Shen Tao does not feel that he will lose. The main reason is that since taking over this Y-8J, he has conducted several simulated attack trainings. The performance of the water-searching 2000MS is really good. It can easily detect frigate-sized targets on the water 200 kilometers away, combined with the range of up to 150 kilometers. With the Eagle Strike 6, there is no need to get close to a risky distance. ??It is basically a fantasy to rely on one aircraft to find three aerial targets within a radius of several hundred kilometers. ?Chang Haonan nodded very firmly: Actually, when we were making the plan, we originally wanted to add a fighter **** formation to your blue army, but your superior said that he didnt have a fighter with a long enough range for simulation, so he had to give up. ?At this time, the Hainan Airlines fighter force stationed on the Jiaodong Peninsula only had short-legged J-7s and even shorter-legged J-6s, and they basically had to return shortly after taking off. ?Shen Tao almost didnt know how to answer with such a confident statement. "Okay, then I want to see what tricks you can do with that plane..." (End of this chapter) Chapter 279 Thought he was the protagonist, but actually he was a supporting role Chapter 279 Thought he was the protagonist, but actually he was a supporting role According to the return itinerary of the visiting formation, the exercise is expected to start at noon the next day. Considering that ship 113 belongs to the North Sea Fleet and ship 542 belongs to the East China Sea Fleet, the two ships will part ways soon after entering the waters of Zhejiang Province. Therefore, in order not to delay the scheduled schedule, the exercise area was chosen outside the Shengsi Islands. Before that, the four aircraft and more than a dozen pilots participating in the performance naturally had to prepare intensively, but for Chang Haonan and other technicians, there was nothing to do for a while. ?So Chang Haonan took this opportunity to walk around on the group''s unique seaside tarmac. Since the Shuihong 5 equipped by this group does not have the ability to take off and land on land, it looks a bit like an airport exclusively for helicopters at first glance. Except for a huge gentle **** leading directly to the sea, there are no runways or taxiways. and other facilities. The leader of the regiment, Shen Tao, was preparing for the noon exercise at this time. Accompanying the visit was the chief of staff of this unit, named Luo Huichuan. Chief of Staff Luo, these water bombers look like they havent taken off in a while. ??After Chang Haonan wandered around several planes for a while, he patted the dust on his hands and said to Luo Huichuan next to him. "There is no way, the funds are limited, we can only prioritize the attendance of a few Y-8Xs, and more importantly, like other aircraft, even the old H-5, we know what to do after takeoff, but this H-5 , besides taking off and landing, I really dont know what other subjects I can practice. ?The latters tone was quite helpless: "When it was originally equipped, it was said that the main function of this model was anti-submarine patrol, and it could also carry missiles for anti-ship operations. As a result, after so many years, the anti-submarine equipment has not been in place, and it has no submarine search capability at all. As for anti-ship, The originally expected YJ-1 missile was blown up halfway..." As for maritime search and rescue and firefighting... I can do it, but this requires the cooperation of surface ships and local units to practice, and most of the time we dont have this condition..." Is that so? ?Chang Haonan reached out and patted the huge pontoon under the wing. He didn''t expect that there was such a layer. The sense of existence of Water Board 5 is too low. He only stays at the point where he has heard of it. As for the rebirth, he never remembered that there was such a category of water aircraft ... "My hometown is in the Daxinganling forest area. During the fire in 1987, I happened to be on vacation at home. At that time, I was also responsible for organizing nearby militia and reserve forces to participate in firefighting. So when I was assigned here at the beginning, I thought I wanted to fly a seaplane instead, but our group leader at the time persuaded me not to do so. In fact, it wasnt that there was anything wrong with the seaplane, it was mainly that the water bomber 5 was not very good..." Chief of Staff Luo thinks seaplanes will still be useful in the future? ?This seemingly random question made Luo Huichuan hesitate for a moment, and then nodded after thinking for a moment: "Seaplanes are definitely still useful, but there is no need to develop them for combat purposes. Except for the lack of runway requirements, they are not as good as transporting 8 in all aspects. It is better to put down the burden in this area and be responsible for maritime search and rescue, fire extinguishing, and other related matters. Transport where there is no runway. From this perspective, it is not us who should be equipped with seaplanes the most, but the comrades on the South China Sea Fleet. Their supply needs for islands and reefs are very high, and there are not enough supply ships..." In the 1990s, China did not have the miraculous ability of nature to create an island later. Many islands and reefs were only guarded by stilt houses, and the larger ones had at most a similar dock. As for airports and so on... Only in dreams. From the conversation, Chang Haonan discovered that Luo Huichuan seemed to know the situation in the South China Sea very well. Its not the kind of understanding through briefings and news, its more like actually going there. Chief of Staff Luo has been to the south before? "Well, that time in 1990, I went with the troops to support the South China Sea Fleet. At that time, I flew H-6D and went over the islands and reefs several times. The conditions for the comrades in the garrison were really difficult. At that time..." Luo Huichuan then said something. What I saw and heard at that time. It wasn''t until the troop horn sounded, which meant that the planes participating in the exercise were preparing to take off, that the two finally ended the conversation and returned to the tower as quickly as possible. As the "offensive party" set in the exercise, the Y-8J and the two H-6Ds driven and commanded by Shen Tao naturally had to take off first. Since both aircraft have a range of more than 3,000 kilometers, according to the setting, they can freely Choose the height, angle and timing of your attack. This is also the blue sides biggest reliance this time Since the two ships on the red side do not have medium and long-range air defense capabilities, as long as the aircraft cannot quickly locate the position of the 8J and simulate a "shootdown", it means that it cannot prevent the launch of the attack. Approximately 40 minutes later, the JH-7 that stayed behind took off alone. ? also means the official start of the exercise. At the same time, on the sea about 300 nautical miles away from the coastline of Zhejiang Province, the formation composed of Daocheng and Ngee Ann was sailing northward one after another. In the Combat Command Center (CIC) of the Daocheng, a group of mid-level and senior naval officers were gathered around a three-person platform, staring closely at the circular display screen in the middle. The Type 052 destroyer is the first Chinese ship designed with CIC and is also equipped with a domestic ZKJ-4B-II combat command system. Although it can only achieve centralized command and decentralized control, it is already a qualitative leap compared to the past command model where old warships needed to convey the captains commands one after another. ??The people sitting here are all quite experienced ship commanders, and they know the performance of their ships very well. The Beaver 2C radar responsible for guiding the Haihongqi 7 and the 341AG radar responsible for controlling the four dual 37mm naval guns can only play a role at the last moment of the terminal interception. The only thing they can rely on right now is the two 571Hs on the hangar at the rear of the ship. The coordinate remote surveillance radar provides some early warning information. In fact, the formation commander Yang Shuyu was a little confused when he received the instruction to conduct a sea-air confrontation exercise on the way back. Because according to the exercise plan they received, except for the final section where they had to shoot empty targets, it seemed that the two ships only needed to do soy sauce throughout the whole process. They were strictly ordered by their superiors not to communicate with the naval aviation units on the Red side. In fact, due to the lack of data links, in this era there is no way to communicate even between ships and fighter aircraft in the same navy... Is it possible that our formation is not the protagonist of this exercise? After thinking for a period of time, Yang Shuyu finally figured out some ways. For a moment, my thoughts suddenly became clear. "Looking at it this way, the positioning of our two ships is actually the target..." (End of this chapter) Chapter 280 A battlefield without smoke Chapter 280 A battlefield without smoke ??Aggrieved, but the exercise tasks that should be completed still had to be completed, so Yang Shuyu, who finally found his position correctly, handed over the command to the captain standing next to him. ??The latter then skillfully directed the ship formation to conduct a series of air defense preparations. After all, no matter what the outcome of the exercise is, they will still hit the last two missile targets. ? ? It is not easy for the surface ship forces of this year to get the opportunity to hit real targets instead of simulated operations. Yun-8J and H-6D are both aircraft with large targets, and their flying heights are several kilometers when searching or attacking the sea. They are the targets most easily captured by radar. ?So not long after, the two-coordinate early warning radar at the top of the hangar captured two targets, one large and one small, at a distance of about 200km. ?This destroyer has been in service for only a year, but many of its officers were transferred from its sister ship Bingcheng, so it is quite experienced. For example, the radar commander quickly judged from the signal characteristics that there should actually be three targets. Among them, the closer and larger one was two aircraft flying in formation. Since the 517H radar is a meter-wave radar, it has the inherent ability The accuracy is insufficient, so the two targets cannot be completely distinguished. ?Early warning radar, at least in this era, really only provides early warning and cannot complete delicate tasks such as guiding anti-aircraft firepower. ??The radar operator stared at the target on the screen for a while and continued to judge: Judging from the flight speed and altitude, they should be two large aircraft, presumably H-6Ds sent by the 2nd Division. Although the dual-coordinate radar cannot provide specific altitude information of the target, a target that can be detected 200 kilometers away is obviously unlikely to be flying at a low altitude. So what can we do now? ?Yang Shuyu looked at the air targets getting closer and closer on the screen in front of him. Shipborne radar air defense is still a new thing to most of the older generation of naval commanders, and they dont know much more than young people. This is the main reason why he just gave the captain of the 113th ship full command. . Wait for the target to launch weapons, and then use active jamming to see if it can prevent the missiles terminal radar from locking on us. If not, prepare for hard-kill interception. ??The radar chief didn''t mention shooting down the enemy plane at all. Hai Hongqi 7 has a maximum range of 10 kilometers against aerodynamic targets. In the 1990s, no serious anti-ship weapons could be launched within this range. Hence, the purpose of point air defense weapons from the beginning is to intercept incoming missiles, not to deal with the launch platform. Even if optical channels are included, it can only deal with two targets at a time and is powerless against saturation attacks. However, it can still resist one or two sporadic anti-ship missiles, which is better than the Type 42 of the Royal Navy. This is too passive Yang Shuyu, who was standing in the middle of the CIC, had experienced what it felt like to have a black eye in a naval battle. It was 20 years ago when he served on the ship. At that time, the navy''s combat scenario was still to fight with the opponent''s bayonet at sea. It didn''t matter if the perception ability was slightly different. But today''s war patterns are ever-changing. Even if the courage of the commanders and soldiers remains unchanged, if the technical level is as good as the If not, I''m afraid it will be difficult to have a chance to fight with a bayonet. "Actually, the situation of our ship is quite good. At least it has a radar configuration with clear echelons of far and near, which can clearly see the source of threats. On the 519 ship I served in the past, there was only one 354-type sea radar that could barely be used for low-altitude use. Searching, the rest can only rely on the eyes of the observing hand..." ?Although the radar commander looks young, he has quite a wealth of service experience and knowledge: If you want to take the initiative in air defense operations, you must at least be equipped with long-range air defense missiles like the S300 or Standard 2. ?This kind of thing would be inappropriate for a captain to say, but it would be okay for a grassroots commander like the radar chief to say it. ThisIm afraid it will take some time. ??The good mood brought about by Yang Shuyu''s ship visit has also become a lot heavier. He thought that not only the U.S. Navy on the other side of the ocean had nearly 40 cruisers and destroyers in service that could launch long-range air defense missiles, but even the Maritime Self-Defense Force across the sea had equipped three Kongang-class ships with regional air defense capabilities. . ??However, the Chinese Navy has to wait another one to two years to obtain the first outsourced modern-class destroyer, and its air defense capabilities are far inferior to the former two. ?Of course, as a senior commander, he would not show this emotion on his face, but he was already planning in his heart how to give the People''s Navy a real regional air defense capability in a relatively short period of time. We should have entered the attack range of Eagle Strike 6. Shortly after, the silence in CIC was suddenly broken: But the radar didnt see anything being emitted. According to the exercise plan, the H-6 will launch target missiles modified from the YJ-6 at them. ??If it is launched before being counterattacked, then the blue team will be judged to win, because they simulate an attack group consisting of 20-30 missiles, and it is impossible for two surface ships to completely intercept it. ??And if there is a counterattack before the launch, the red team will be judged as the winner. However, in order to provide the ship with an opportunity for air defense training, the two target missiles will still be fired, but it has nothing to do with the outcome of the exercise. Is it too far away to see clearly? It shouldnt bewait a minute, a new target suddenly appeared on the radar, right between us and the three blue fighters. ??The voice of the radar operator redirected everyone''s attention to the screen in the middle of the CIC. Sure enough, there was a signal that was not very obvious and was flying in a direction away from the two ships. Is this the support force of our red side? Just a plane? "It shouldn''t be that big. It''s probably because there are several of them stacked on top of each other, so the radar can''t see it clearly." But this target is within the search range of the 360 ??radar, so the resolution shouldnt be that bad. ??The director only informed them of the basic plan for the exercise, but did not disclose the troop deployment of both sides, so there was a discussion in the CIC. At this time, the captain has also seen some clues: Forget it for now, Chief Gunner, be prepared to intercept the target drone. I think the success or failure of this exercise should have nothing to do with our two ships, but the interception of the target missile later must not be missed! Just as the Daocheng and Ngee Ann were preparing to intercept the incoming target drones, in the air, at a level invisible to everyone, a battle between electromagnetic waves had been going on for some time. The water-searching 2000MS radar on the Y-8J aircraft discovered the radar signals of the two ships 250 kilometers away. According to the plan, Shen Tao asked the crew to guide two H-6Ds flying at a slightly lower altitude to prepare to attack the target at a distance of about 100km. ? ? It was originally the original function of this aircraft to stay outside the enemy ship''s air defense circle and guide low-altitude anti-ship missile carrier aircraft. The effect seems to be quite good now. ??If it is not the cumbersome H-6D but the JH-7 that can fly sea-skimming at low altitude, then the two surface ships should only find the attack aircraft group climbing to altitude and preparing to launch missiles in the last half minute. For the next few minutes, everything seemed calm. So much so that for a moment he thought it was more like a simple simulated attack on the sea. But the good times did not last long. Just when the two bombers were about to enter the attack range, the radar operator behind the cabin suddenly reported that they had lost the signals of the two ships. Lost signal? Shen Tao, who was controlling the plane to fly on a zigzag route, was stunned for a moment: How does the radar behave? The signal in the sector area of ??about 5 where the target is located is overloaded, and the anti-interference mode does not respond. Obviously, they were interfered by the red team''s interception unit. ? Shen Tao, who was a little confused, glanced at the threat warning device on the dashboard. It did not display any other signal sources, only two meter wave and one centimeter wave signals from the side. ? He ??was very convinced that it was the search radar on the Type 052 destroyer and Type 053H2G frigate. These days, surface ships and aviation forces cannot communicate directly. Excluding the possibility of cheating by the director, the red side aircraft can only use radar if they want to detect them. ??But first of all, the air detection range of the 234H radar on the JH-7 is only about 70 kilometers. It is not easy to find three aircraft in the huge exercise airspace. ? Secondly, if it is scanned by an X-band fire control radar, the radar warning device should give a prompt. Could it be caused by natural phenomena? Shen Tao began to doubt his judgment just now, so he asked the back cabin in a somewhat uncertain tone. ?But before the other party could answer, he received a report on the radio from the pilot of the H-6D lead aircraft about 70 kilometers away. Their Type 245 radar was also unable to lock on to the target due to strong electromagnetic interference! Hell After thinking for a moment, Shen Tao gave up the idea of ??continuing to fly the zigzag search route, and instead turned the nose of the aircraft and flew directly in the direction of the target. ?This decision brought quick results. Although the interference has not been eliminated, the radar warning device shows that at the 2 o''clock direction of Y8J, there is an X-band radar signal that is still in search mode. (End of this chapter) Chapter 281 Old rival, F4EJ comes to join in the fun Chapter 281: Old rival, F4EJ comes to join in the fun TMD, I finally found you According to the setting of the director (actually due to the range limit of J-6/J-7), the blue side commanded by Shen Tao does not have **** fighters, so even if the opponent''s approximate location is known, it cannot send a plane to intercept it. But he can choose to avoid its edge. Although I dont know what kind of black technology the other party used to interfere with its own radar from outside the beam at such a long distance, the red teams take-off time was nearly 40 minutes late. The H-7, after traveling in such a large circle, could still approach itself from the east before the H-6D launched its attack. Calculated based on the flight speed and distance, afterburner must have been used in the middle, and it was obviously impossible to retain too much fuel. Although semi-active medium-range missiles generally have a range of more than 30 kilometers on paper, at low altitudes where the air density is higher and in a tail-chasing state, it is quite remarkable that they can hit a target 10 kilometers away. This is definitely something the director also agrees with. will be taken into consideration. So he should be safe now. ??And as long as it is delayed for a while, the other party will be forced to return! Shen Tao made what he thought was the most reasonable judgment. However, the actual situation on the other side was slightly different from his speculation. Almost as soon as they entered the exercise area, the two test pilots on the JH-7 discovered the traces of three blue fighters through passive radar ??The electromagnetic waves emitted by the two two-coordinate radars on the destroyer are powerful and stable, and they are simply the most perfect third-party signal source. Another benefit of passive radar is that it can detect targets without aiming the transmitting antenna of the aircraft nose at the target. ?Perhaps because the electromagnetic environment is relatively clean, the actual effect even exceeded Chang Haonan''s initial calculation on paper. However, since forwarding jamming requires first receiving the opponent''s radar signal and then transmitting the jamming in the original direction, it cannot protect targets whose angle ranges are too different. Therefore, after discovering the target, the J-Handian-7 pilot can only choose First lower the altitude and fly at an ultra-low altitude to avoid alerting the enemy, and then seize the opportunity to cut between the opponent''s aircraft and your own ship and activate the jamming pod to give the blue team a surprise. Thats exactly what they did. And judging from the subsequent inexplicable route adjustment of the Y-8J, electromagnetic interference should have had a very good effect. What should we do next? ??The weapons control officer in the back seat asked the pilot in front on the radio. According to the combat scenario before the start of the exercise, in addition to the jamming pod, they also carried two PL-11s, two PL-5s and three auxiliary fuel tanks. They could take a blind look at them without knowing that they were getting closer and closer to the interceptor. The two nearby H-6Ds carried out simulated attacks. ?But on another level, in the red teams mission requirements from the directors department, they were not actually required to shoot down the incoming blue aircraft. It just said that if they could successfully interfere with the carrier aircraft before the missile was launched, they would win. ??And now that they have enough fuel left, they can stay in the middle of the blue bombers and their own ships to maintain interference. In other words, according to the rules, the red team has actually won. But because they are currently flying at a low altitude, they cannot conduct normal radio communication with the tower to determine the results of the exercise. The three blue planes did not seem to have any intention of evacuating the exercise area. ??If you climb rashly, the destroyer and frigate formation behind will lose cover. ??In case the opponent takes advantage of this moment to launch a simulated attack, the outcome is still unknown. So the four participating aircraft and the two warships, who were confused and didn''t know what was going on, were frozen like this for several minutes. What is the Blue F-8J doing? Its almost flying out of the exercise area towards the coastline. ? ? The results of passive radar detection can currently only be displayed on the multi-function display in the back seat. Therefore, unlike the situation in most aircraft, the weapons controller has more control over the situation than the pilot. Its been flying to the west? Since the active radar on the nose of the aircraft was not turned on, there was very little information on the HUD in front of the pilot. However, judging from the comments of his comrades later, the situation was indeed quite strange. Thats right, oh, now the direction has changed slightly, as if something is chasing behind. The weapons controllers description made the pilot a little worried: Never mind, the interference has lasted long enough now, lets climb. After saying that, he made a lever action, and the aircraft''s altimeter began to rotate rapidly. As the flight altitude gradually climbed, the radar warning equipment of the JH-7 suddenly had a new response. Wait a minute...this is not the signal characteristic of SouShui 2000. ??The military controller said and pressed several buttons on the panel. ?The jamming pod has the function of analyzing radar signals. If the results match the existing models in the database, the radar model will be output directly. ??Its just that this database has not yet been formed and only stores a few radar features. But these are just a few that are just right. "The result displayed here is...AN/APG66." Furthermore, the passive radar also shows that there are two very close formation targets about 80 kilometers behind the Y-8J. F16? The pilot blurted out subconsciously. The most typical installation target of AN/APG66 is F16A/B. But this is not a model that is often encountered over the East China Sea. So he quickly changed his judgment: No, its F4EJ. Fuck, the road between enemies is narrow today. ?At this moment, the two people in the cockpit figured out everything that had just happened. ?Yun-8J does not have warning equipment that can display all radar models like the JH-7. It must have regarded the X-band signal of the APG66J as a red-side interceptor. With its back to the target, the SouShui 2000 located on the nose of the aircraft obviously cannot see the target. The F4EJ is located more than 250km away from the Daocheng, which has exceeded the detection range of the 517H radar for targets the size of typical fighter jets. Not to mention the two H-6Ds, they have no air sensing capability at all. Finally, this place is located over the high seas, far away from the coastline, and shore-based radar cannot grasp the air conditions in real time. So this resulted in such a strange scene. ?Before the JHD-7 was scanned by the opponent''s radar beam side lobes, everyone failed to detect it by mistake, or ignored the two F4EJs that came to join in the fun. ?Although it sounds a bit outrageous, this is a true portrayal of the Chinese Navys air surveillance capabilities. This is how it was when there was no regional air defense capability or early warning aircraft. Only relying on ground radar and land-based aircraft will never truly lead to the deep blue. (End of this chapter) Chapter 282 False targets to deter the Air Self-Defense Forces Chapter 282: False targets to deter the Air Self-Defense Force Fortunately, the JHD-7 had climbed to an altitude of 8,000 meters at this time, and the radio communication that had just been interrupted was restored. ?So the two pilots reported the situation as quickly as possible to the base command center in Donglai. Although the place they were in belonged to the high seas, the behavior of the two F4EJs rushing towards the Y8J could be regarded as an active provocation. ?Of course, on the high seas, there is no rationale in the final analysis. In the end, it usually comes down to who has the bigger fist. ??This is not the first time that the JH-7 of the Naval Aviation has met with the F4EJ of the Air Force. Judging from past experience, if we only consider the performance factors of the aircraft, it does not mean anything to the opponent. ?However, at this time they are still hanging various bits and pieces such as electronic warfare pods and auxiliary fuel tanks, which will undoubtedly have a serious adverse impact on flight performance. ??More importantly, this is a prototype aircraft that is in the process of flight testing, Du Miao. So the base commander asked them not to venture within visual range. But it would seem a bit out of character if he just ran away in such a dejected manner. Can you send some fighter jets to deal with it? Inside the tower, a staff officer suggested. Luo Huichuan, chief of staff of the 4th regiment, shook his head: The range of our aircraft is too short. It wont take long to follow us before returning. At present, we can only contact the Air Force and ask them to take off two J-8s... This is obviously not a good idea. The issue of the dignity of naval aviation is still secondary. The main problem is that cross-service liaison and reinforcements are too complicated in this era. Due to the lack of information technology, there is no horizontal liaison mechanism. It needs to be reported to the naval command department first, and then contact the Air Force. , and then pass the order to the corresponding aviation unit. By the time this round of procedures is completed, I''m afraid the day lilies will be cold. After a few seconds of stalemate, Chang Haonan, who was in charge of technical support, suddenly said: Its better to let the electronic warfare aircraft scare the other side. Anyway, the distance between the two sides is still very far, and it will take some time to get within the visual range. Furthermore, even with the electromagnetic interference from the opposite side, it is impossible to seize our plane. The initiative must be mine. In principle, the JH-7 has not yet been delivered, so it belongs to the flight test institute. However, as far as the current situation is concerned, it is obvious that the naval aviation is responsible for unified coordination and command. ?Furthermore, although the Flight Test Institute is a subsidiary unit of the aviation industry, the test flight brigade to which the test pilots belong is a serious military order, so it is impossible for Chang Haonan to directly issue instructions at this time, bypassing the on-site commanders. ??His two sentences seemed casual, but they happened to address the issues that everyone at the scene was most concerned about. So the balance that was still swinging in the heart of the base commander gradually began to tip to one side. Are you sure that the jamming pod will also be effective against the F4EJ radar? When he asked this question, it actually meant that a decision had been made. Just need to find a more sufficient reason for yourself. AN/APG66J is a typical X-band pulse Doppler radar. It is the most typical target for the jamming pod we designed, and the jamming effect should be better. Such an answer obviously gives the other party a reason. Well, let them go up and try first, but they must pay attention to the distance and dont get too close. The base commander took the opportunity to agree to Chang Haonans suggestion just now. ?Of course, it is impossible to handle such a big matter by yourself. Reporting to superiors is still indispensable. However, reporting the situation and handling emergencies can be completed at the same time without delaying each other. After the order was issued, the two pilots in the JH-7 were naturally the most excited. As test pilots, they are undoubtedly the elite among the elite in the military. But at the same time, it also means that there will be a lot less front-line experience. As a result, they caught up today. ??With the two F4EJs so disrupted, the exercise will definitely not be able to continue. ??Of course judging from the results, the red side undoubtedly won. A few minutes later, the two H-6Ds without anti-aircraft capabilities quickly returned as required. The crew of Shen Tao, who had always thought that the red plane was chasing them, finally came to their senses after receiving the order and directly turned 180. Welcoming him. TNND, so embarrassing... Shen Tao, who was flying the plane, felt aggrieved in his heart. ?????????????????????????????????????????????????????????????????????????????????????. What''s more serious is that if the base command hadn''t contacted him in time and issued instructions, people might have thought that they were the two fighter jets he was afraid of today. ?Then he may not be able to hold his head up for the rest of his life. ?Thinking of this, Shen Tao felt scared for a while. ?His aircraft is unarmed, but the SouShui 2000MS radar can capture fighter-sized targets at a distance of about 80 kilometers, and has certain mapping capabilities. If compared, it can barely be regarded as an ultra-low-end version of the E8. The sea-air struggle in peacetime is definitely not just a matter between fighter jets. Red Square No. 01, there are two target aircraft, located at my 11 oclock direction, 65km away, you can... Since there is no data link, Shen Tao can only report the positions of the two F4EJs to the pilots on the improved Flying Leopard via radio. ??Although the two sides still had to compete with each other 10 minutes ago, the red and blue sides still had to compete with each other when facing their old rivals, the Air Self-Defense Force. ?However, his information report was interrupted only halfway through: Blue Square 01, your aircraft only needs to ensure that the radar continues to illuminate the target. Our aircraft can obtain the targets location information on its own without reporting. ??The test pilot''s flat voice came over the radio. ?However, if you listen carefully, you can still feel a hint of trembling in the tone. Obviously he was also suppressing the excitement in his heart. But this answer was completely beyond Shen Tao''s expectations. "ah?" At this time, the JHD-7, which was coming at high speed, finally flew within the main beam range of the two F4EJ radars, then turned around and turned its nose towards the other party - The transmitter antenna of the electronic jamming pod is directional and has the best effect within a range of 60 to the left and right of the aircraft nose. ?Then, the backseat military controller adjusted the jamming pods working mode from the previous coverage to deception. That is, a mode that generates a large number of false targets. Then, just wait for the other partys reaction. At the same time, more than 60 kilometers away in the air. ??Third Airman Koichi Sakato and Second Airman Yamamoto Sakuta were driving the formation leader aircraft towards a large air target detected by radar at high speed. In fact, their two planes were just conducting routine flight training, and in the middle of the flight, they suddenly received a report that a Chinese aircraft was operating nearby. At the end of the 1990s, it was the peak of the Air Self-Defense Force''s strength, and it even didn''t pay much attention to the Chinese aviation force. ?So Kato almost didnt hesitate and flew towards the target airspace with his wingman. Everything that happened next was pretty much what he expected. After turning on the search radar, they quickly discovered a large target flying along a zigzag route, presumably a patrol aircraft on a transport aircraft platform. The other party seemed to realize that he had been discovered, so he turned around and ran away. Kato Hikaru was not in a hurry, he just followed behind slowly. ?However, just a few minutes ago, the plane that had been escaping suddenly made a 180 U-turn and rushed directly in the direction of the two F4EJs. ??If this is the case, there is nothing to worry about. Fighters will not suffer any loss when dealing with patrol aircraft. ?However, before Kato Kuzuo could be happy for too long, eight densely packed target signals appeared on the radar interface in front of him in an instant! The balance of power between the two sides has undergone a 180 reversal, from the previous 2 vs. 1 to 2 vs. 9 in an instant. To say that we are not panicking is definitely a lie. Kato Hikari''s hand holding the joystick shook slightly. Satoru Yamamoto in the back seat even exclaimed: Where did the Chinese send so many planes from? (End of this chapter) Chapter 283 slipped away Chapter 283 slipped away For a time, the two F4EJs were in a dilemma. Under such an absolute numerical disadvantage, it takes courage to continue the confrontation. ?But after all, they were the ones who took the initiative just now and rushed towards us in a menacing manner. If they turned around and ran away without even seeing each other now, it would seem too embarrassing... ?Kato Hikaru initially thought about whether to request reinforcements from the 302nd Air Force at Naha Base. However, the current deployment of air forces still follows Cold War habits. The aviation units located in the southwest are not elite and their combat readiness level is relatively low. Considering that the base is still about 400 kilometers away from this airspace, even if reinforcements are sent, it will probably take about half an hour to arrive. If you want to take off the F15J with better performance, it may take longer. According to the current speed at which the two sides are flying towards each other, visual contact will enter in three minutes at most. Even if everyone maintains restraint, they will be 2 versus 8... In the end, you wont get any advantage. Furthermore, the fuel consumption of fighter jets during violent maneuvers is much higher than that of normal level flight. Before reinforcements arrive, both sides may have withdrawn their troops. In the cockpit, Kato Katsusa secretly cursed the ground radar station that had just provided him with target information for being unreliable. What they said about only three large planes was really believed in their lies. At this moment of confusion, the voice of the wingman pilot came over his radio: Could this have been their trap from the beginning? What trap? This sentence made Kato Koichi, who was already in a state of facing fewer enemies and more, even more nervous. "This... I can''t say. Maybe they want to introduce us to fighting within visual range, and then rely on the numerical advantage to prevent us from flying back, or use a camera gun to take a few photos of us being bitten. You know, in This situation is difficult to avoid in a melee. ??If Kato could be a little calmer, he should be able to hear that the wingman has no clue about this and is just guessing now. ?But the content of the other partys wild guess hit exactly what the former was most worried about. The Self-Defense Forces are essentially government agencies, while the Self-Defense Officers are essentially civil servants. This sentence is not only describing their training level, but also describing their organization method and operating logic. Its a mistake to do too much, and its good not to do anything. ??If what the wingman just said really happened, Kato would have to take the blame. ?Thinking of this, he suddenly felt that it would not be a shame to turn around and go back... ?But before that, the attitude and preparations for passing the blame still need to be sufficient. The opponent has a huge numerical advantage, and your concerns are indeed justified. Kato slightly pulled the throttle with his left hand to continue decelerating the aircraft, and at the same time changed the flight direction slightly to avoid a head-on collision with the opponent''s aircraft group shown on the radar: "We can''t fight them now, call for reinforcements, and delay for a while." He knew that all conversations would be recorded by the onboard equipment, which could be used as a tool for him to explain his actions if there was any trouble later. After saying this, Kato adjusted the airborne radio to the satellite communication channel and prepared to communicate with the Naha base behind. Base, this is COSMO356. The situation you reported just now is wrong. We found 8 more Chinese fighter jets near that large aircraft. They are presumed to be J-8s. Please support us! However, a few seconds passed, but no reply was received on the radio. ?Aware that the situation was getting increasingly out of control, Kato endured his inner uneasiness and called again. Still no response. At this time, Yamamoto Kakus voice came from behind: It appears that our satellite communications are being interfered with? How is it possible? This is communication equipment that was just upgraded last year. Compared with before, the frequency band was even specially switched. Hikaru Kato immediately denied this statement. But it seems that no other explanation can be found. After a few seconds of hesitation, he asked his wingman to try calling again. ??Similarly, no response was received. "What the hell..."??Kato Koichi was still able to persevere at a 2 vs. 8 disadvantage before, mainly because he had the support of two flying teams behind him. The range and overall performance of the F4EJ exceeded that of China''s main model, the J-6. and J-7, not to mention the slightly distant Nittahara base and the world''s most advanced F15J, which have absolute advantages in terms of quantity and performance. But now, for whatever reason, this advantage no longer exists. On the radar, the Chinese fleet is only less than 30 kilometers away from its own two-plane formation... This is over the high seas, we are training normally, its just an accidental encounter. As long as we fly back safely, no one will know what happened here. As the saying goes, nothing is difficult in the world, as long as you are willing to give up. After some mental construction, Kato Koichi convinced himself to forget about the thoughts he had when he took the initiative to find trouble about twenty minutes ago, and then took a deep breath: Lets return. The two planes performed a 90 roll simultaneously, then turned rapidly and deviated from their original route. At the same time, dozens of kilometers away, the SouShui 2000 radar on the Yun 8J immediately captured the opponent''s movements. They retreated. Shen Tao also heard the report coming from the back cabin. Were you really scared away? This is a quite surprising result. In fact, he was even ready to make visual contact with two F4EJs just now. As a result, the other party suddenly became timid. As a veteran Hainan Airlines pilot, Shen Tao has naturally had contact with the Air Self-Defense Force. Although the training level is far inferior to that of the US military, so that experienced radar soldiers can distinguish whether the target is an F15J or an F15C just by looking at the track, but no matter what, relying on more advanced weapons and equipment and the old father behind him as a backup, Kong Zizi has brought a lot of trouble to China''s aviation forces in the past few years. ??It was indeed the first time that he had seen this kind of situation where the two parties turned around and ran away without even seeing each other. Havent even heard of it before. As a result, today, a chance encounter that was considered unexpected for both parties actually revealed the other party''s original shape. Such a difference made Shen Tao think about whether the passive defense strategy in the past was a little too conservative. ??Although the performance of the electronic warfare aircraft was indeed very good, in the previous confrontation exercise, the radar on the Y-8J was rendered useless. Presumably, the two other aircraft also suffered similar interference. ?However, this is definitely not a reason to run away from the enemy. Attributing the reason to the lack of courage of the opponent''s pilots seems to be slightly more reasonable, and it is also more in line with the writing habits of our army''s post-war summary. But Shen Tao has a deeper idea about this A well-known senior general of our army once said that if the commander does not understand the environment and is not prepared for the enemy''s attack when the enemy suddenly attacks, then even if he is usually brave, he will be helpless and have to do three things. Of the sixteen strategies, running is the best strategy. In his opinion, this is the core of the problem. Hong Kong has no plans or preparations to deal with emergencies like today. They have better radars and more early warning aircraft to provide more complete air surveillance capabilities, but in essence, their adaptability is quite average. In the final analysis, the other side has always been fully prepared to take the initiative to provoke, while China is in a relatively passive situation. But this time, the offense and defense have changed. So, if we can take more proactive sorties like today (actually it can only be regarded as normal maritime training), will it be able to disrupt air self-sufficiency and reduce the sea and air pressure faced by the eastern direction? ?Shen Tao gritted his teeth and decided to start writing as soon as he returned. ??Of course the flight commander alone cannot make a decision on this kind of thing. But a report from a flight commander can make more people start thinking about this issue. (End of this chapter) Chapter 284 Review Chapter 284 Review After struggling for such a long time, the two H-6Ds that were the first to leave the exercise area have returned and landed, and the Y-8J and JH-7 have basically run out of fuel. ?The ground handling capabilities are still relatively limited these days, and the reliability of the aircraft itself is also average. In most cases, it is difficult to take off again immediately after a dispatch. So it is obviously unrealistic to continue to conduct confrontation exercises. Fortunately, although there were extraneous matters, except that the destroyer and frigate formation failed to obtain the planned opportunity to shoot low-altitude targets with live ammunition, the overall situation was considered satisfactory. The naval aviation forces practiced tactical coordination during sea attacks. Chang Haonan and the others verified the effects of the electronic warfare pod and passive radar twice on their own Y-8J and the opponent''s F4EJ. Even before the JHD-7 has entered service, it has already demonstrated its powerful combat capabilities and has a bright future. A world in which only surface ships were injured has been achieved... On the other side, inside the tower in Donglai, when Shen Tao''s report that the enemy planes had retreated ended, everyone in the 2nd Hainan Division, the 14th Electrical Engineering Institute, and the Flight Test Institute had already begun to congratulate each other on a small scale. Among all the people, Chang Haonan gained the most. In addition to gaining a large network of contacts within the Dianke Group, what is more important is the improvement of the system panel properties. Research Points: 900 Theoretical level: LV2 (8500/10000) Engineering experience: LV2 (4000/10000) Management ability: LV2 (3000/10000) Comprehensive ability: LV2 Projects in progress: 0 Projects that can be carried out: 2 Its hard to say whether todays wave is a test, an exercise, or an actual combat, but in short, the system directly determines that both passive radar detection and forwarding jamming projects have been completed. After subtracting the expenses of having the system help improve the project, we still made a net profit of 300 scientific research points. Furthermore, perhaps because the development and improvement of stochastic finite set theory was involved during the project, the experience value of the [theoretical level] in the system skyrocketed by 6,000 points. However, [Engineering Experience] and [Management Ability] have not increased much. This may be because although these two projects are not easy, most of the tasks of transforming theory into engineering design are completed by members of the 14th Institute, and from start to finish The size of the team directly involved in the project is not large, and it does not test Chang Haonan''s management level too much. But in any case, the system is now very close to achieving a new breakthrough. Theoretical level is the only attribute that has not been upgraded since his rebirth. Although the accumulation of experience points within the same level will also enhance abilities, judging from his past experience, the effect is far less obvious than the effect of level upgrading. This made Chang Haonan look forward to it. ?Of course, such a big matter involves a distanced battle with Kongzi, an old rival, and it is obviously impossible to have no sequel. Especially for those in the naval aviation side, there must be a lot of desk work waiting for them. ?About half an hour later, the JH-7 prototype that made the spotlight today landed on the runway of the Donglai base. Following that, the slightly slower Yun 8J also landed smoothly in the twilight that was gradually sinking to the west. Everyone held a brief welcome ceremony on the tarmac for several triumphant pilots. Subsequently, the staff who followed from the flight test center took off the two electronic warfare pods and placed them on the bracket next to them In addition to the No. 02 pod that was first brought to Yan Liang from Jinling by Chang Haonan and others, when Guo Lin and others returned to the 14th Institute to work on passive radar antennas, they also built a brand new 03 according to the improved technical status. No. pod. ?This pod is functionally the same as No. 02, but in order to better reproduce and analyze the electronic warfare test process, a recording device is specially added to it, which can store all data under power-on working conditions. After the ground crew took apart the lower half of the fairing of the pod, Guo Lin personally took out the recording equipment in pod No. 03 and handed it to Chang Haonan next to him. Chang Gong, Guo Gong. ? Luo Huichuan, who was beaming with joy, and Shen Tao, who had not yet taken off his flying helmet, walked over from the other side: You comrades on the scientific research front are the biggest contributors to our ability to scare back our childhood this time. In the evening, there will be extra meals in the base canteen, so you shouldnt be busy at this time. Why dont you come and try our air service stove? Although it is not yet time to open the champagne with great fanfare, it is still necessary to celebrate on a small scale within the participating units. ??You must attend this kind of occasion, but Chang Haonan still wanted to know what had just happened in the sky as soon as possible, so he thought for a moment and replied: "Well...you guys should go over there first. We analyze the data quickly and should be finished before dinner time." Although several pilots will definitely write corresponding reports later, even those who have witnessed it, their subjective judgments are different from what actually happened. The objective situation may not be completely consistent, especially since the two pods playing the leading role today are highly automated equipment. Even the weapons control officer in the back seat may not know what is going on. "Okay, I''ll ask the staff to find a nearby place for you." Luo Huichuan looked around and found a young officer with the rank of lieutenant not far away. The people were led by the latter to a conference room. ?Chang Haonan connected the hard drive in the storage device to the computer, and then opened the data file in it. Considering that the electronic jamming pod may work for several hours at a time, in order to reduce the data volume as much as possible, the simplest recording method was adopted when designing this recording equipment. The cost is that the format of the file after opening is a mess. Fortunately, everyone is a professional. Although they are a little big-headed, they can still see some clues quickly. "Look, the first recorded P-band signal is obviously the long-range warning radar on the 052 destroyer. The characteristics of this slightly weaker S-band are not very obvious, but the direction of the signal source is exactly the same as the previous P wave. It should be the TSR-3004 imported from France..." When it comes to the specific radar field, Guo Lin is still very expert. But in the following paragraph, why is the data almost blank? There are only some clutters that are obviously reflected from the sea surface. ?Someone on the other side pointed to the approximately ten minutes in the middle and wondered. Thisshould be the aircraft flying at ultra-low altitude to avoid detection. In this case, the radar signal coming from a large angle above cannot be directly captured by the pod due to the shielding of the aircraft body itself. After a little thought, Chang Haonan quickly thought of the answer: "After all, our JH-7 is modified based on an old aircraft. The compatibility between the body and the pod is not very good. If we want to redesign the electronic warfare platform, we can add a set of vertical tails or the back of the aircraft. Receive antenna to solve this problem. "I see" ??The person who just asked the question also suddenly realized. He is an engineer from the 14th Institute of Electrical Engineering and has not done much research on aircraft. This situation should be specially marked and let them pay attention when it is officially delivered to the troops for trial later. It shouldnt be a big problem. When flying at ultra-low altitude, you are not very afraid of the radar above your head. The main threat comes from the ground. Everyone said something to each other, and the discussion on this issue soon came to an end. Here, a very strong X-band signal is SouShui 2000. ??Guo Lin turned down a few more pages of the data file: And from this time, the pod began to release covering interference. I speculate that at this time, the aircraft should be between the Y-8J and the destroyer and frigate formation. There will be no changes for a long time ?Most mice in this era did not have a scroll wheel. He could only drag the scroll bar on the right side of the interface to turn the data pages at a reasonable speed. Finally, we have arrived at the place that everyone is most concerned about. "Look, the pod''s working mode switched from coverage to deception. It should have come into contact with F4EJ in the early days." The pod generated a total of 14 false targets, 7 of which were high-fidelity holiday targets ?Chang Haonan found the most critical pieces of information as quickly as possible. In other words, in the eyes of the two F4 pilots, they were facing eight of our fighters at that time, so they turned around and ran away? The person who said this sentence was obviously very happy because he had successfully tricked the other person. Its not just thattheres a weaker X-band signal behind it. Chang Haonan, who continued to look down, speculated: I guess it was sent by their satellite communication equipment. That means the two planes later tried to call for reinforcements, but due to our interference, they lost contact with the base. ?Now, everything is revealed. (End of this chapter) Chapter 285 Regional air defense cannot be delayed any longer. Chapter 285: Regional air defense cannot be delayed any longer After the data analysis, according to the original plan, I was going to attend the dinner. ?However, no one expected that that night, Yang Shuyu, who had just disembarked from the Daocheng, took a Boeing 737 and rushed to the Naval Aviation Base in Donglai. ??Accompanying him were several officers from the island city ship. Shortly afterwards, several other helicopters of different models arrived. ??Because they improvised during the exercise and successfully frightened off the evil-minded Kongzi F4EJ, it was only natural to celebrate on a small scale, and no one could say anything was wrong. So after Yang Shuyu arrived, he drank half a cup symbolically to show his encouragement and recognition to those who participated in the war today. Of course, the superior leaders did not even bother to rest and came all the way from the island city, the home port of the North Sea Fleet. It could not be to participate in such an extra meal that was not even a celebration banquet, but it was related to what happened this afternoon. In fact, it is to hold a summary meeting, where all parties share experiences and lessons learned. So after dinner, all relevant personnel sat back in the conference room just now. ?Yang Shuyus opening is very straightforward: "I rushed over immediately after disembarking. In addition to congratulating you, more importantly, I wanted to express my own feelings about today''s confrontation exercise while the experts in electronic technology and aviation industry have not left. " There was a routine round of applause, but he immediately raised his head and lowered his head, indicating that there was no need to engage in such a formality, and then continued to preach: "First of all, I would like to thank the comrades on the military-industrial front. It is you who have allowed me, an old navy man, to experience first-hand what war looks like under modern high-tech conditions. In the past, although I had a general concept in my mind, it was always superficial on paper. , its better to go there in person today. The surface ships we participated in this confrontation exercise are the most advanced and youngest destroyer and frigate in the entire military. Their combined age is less than 4 years. "But these two warships, which represent the upper limit of our navy''s combat effectiveness, could only stand by and watch for a few hours this afternoon, unable to do anything, and unable to help at all!" Actually, it is somewhat inaccurate to say that we stood by and watched, because we only saw the first half of the exercise, and saw a maritime patrol aircraft and two bombers. And the two Japanese planes with malicious intentions did not appear on the radar screen the whole time! ?Speaking of excitement, Yang Shuyu''s voice became a little higher, and at the same time he tapped the table with **** sadly. ??The island city ship commanders sitting on the other side of the conference table also looked heavy. Obviously, this feeling of not being able to control your own destiny is quite uncomfortable. "Judging from the results, our response was good and we succeeded in driving away the enemy plane. However, if the red side''s electronic warfare aircraft had not inadvertently captured the signal from the F4EJ radar, it would have taken some time for us to notice the situation. Abnormal, if it is in actual combat, this is a huge hidden danger. " ?Due to U.S. restrictions, the F4EJ and F15J equipped with air self-equipped equipment have all had their ground-to-sea capabilities cancelled, but the risk is always there. ?This time its F4EJ, what if its F18 next time? ?Yang Shuyu paused. . After the warship returned to port, he quickly learned the general process of the whole thing through the command headquarters'' exercise report, so he continued a few seconds later: "Of course, this cannot be said to be the responsibility of our comrades. The radar on the Daocheng cannot see the target the size of a fighter jet 250 kilometers away, and our maritime surveillance aircraft also cannot detect those two targets due to angle problems. plane." However, there is no reason for war. In any case, we seriously lack air surveillance and regional air defense capabilities, and this will also be the focus of the next construction of our navy. After speaking, Yang Shuyu glanced at all the faces in the conference room and motioned for everyone to express their opinions freely. Since the venue for the meeting was chosen at the naval aviation facility, it was natural that Shen Tao, as the host, was the first to express his stance: "Judging from the use of the Y-8J maritime surveillance aircraft in the past period, this kind of aircraft with only forward radar is still more suitable for sea search. As for air detection, firstly, the blind zone is too large, and it is easy to be intercepted like today. The opponent''s aircraft exploited the loopholes, and secondly, the radar optimized for surface ships did not have enough detection distance for air targets. Therefore, I think that in order to improve our military''s air defense surveillance capabilities, we still need to have a real early warning and command aircraft. " When it comes to early warning aircraft, Chang Haonan is not sleepy. ?Yang Shuyu came here specially today, obviously to bring the front-line troops and engineering and technical personnel together and directly feedback the actual needs of the former. "Regarding the early warning aircraft project, Dianke Group is already advancing. The current plan is to walk on two legs. The ring project that has already paid the payment will continue to cooperate as it is. At the same time, it is striving to establish a medium-sized early warning aircraft completely developed with domestic technology. Achieve a high-low mix and spread the risk. Medium-sized early warning aircraft Chang Haonans speech really aroused Yang Shuyus interest: Where is this project now? Is there an expected timetable? There are only four early warning aircraft in the ring project plan, and the Air Force is the one who paid for it. Obviously, it is impossible to allocate one to the Navy. Moreover, if the early warning aircraft does not form a large scale and can be dispatched at any time in one direction, it will not be very practical. big. So the Navy actually has a demand for a more cost-effective early warning aircraft. The approval process is under way. If nothing goes wrong, the project will probably be successfully approved in the second half of this year. As for the timetable...it should not be a problem to complete the first flight within 2-3 years. If there are sufficient funds, we can even join the 9910 project. This answer is obviously very targeted. When you doze off, I will hand you a pillow. Yang Shuyu just nodded slightly after hearing this and seemed to have no other expression. However, the secretary behind him lowered his head and started recording something. The success of the JH-7 allowed the naval aviation force to experience for the first time the pleasure of customizing an aircraft according to its own requirements. Therefore, Chang Haonan''s attempt to attract investment in the Air Police 200 project has most likely been successful. So what about besides the AWACS? ?After a brief silence, a senior officer with a lower rank next to him spoke: "After the two Sovremenny-class destroyers purchased are delivered, our surface ship air defense capabilities will be greatly improved, but compared with real regional air defense, such as the Ticonderoga class, or the King Kong class, or even the Russian Navy The Kirov-class still has a relatively obvious gap. The main shortcomings are the lack of high-performance search radars, quick-response missile launch systems, and centralized air defense command systems, especially radars. In air defense operations, being blind can be difficult. no." ?This is said more euphemistically. Actually, if classified in a rough way, an air defense system only has three parts: command, radar and missiles. There is no barrel effect, because it is a plate. They are all shortcomings. After all, the Hyundai class is originally positioned as a low-level chore ship in the Red Navy. It does not have anything fancy on it, from steam turbine power to the short-range but powerful 3M80 "Sandfly" supersonic anti-ship missile, and The 3S90 air defense system, which also has a very short range and average response speed, is just a makeshift system. For the current Chinese Navy, it is considered a treasure, but compared with others, it is indeed not worth mentioning. (End of this chapter) Chapter 286 Aegis Chapter 286 Aegis I remember that the 14th Institute of Electronic Technology Group should have a sea-based phased array radar project, right? ?After the topic came to the air defense of surface ships, Yang Shuyu asked Guo Lin and others. ?With his position, he naturally knows about the existence of these projects, but he may not be very clear about the specific progress. Unless it is a key model in your own field of competence. ??Guo Lin obviously did not expect that the Electronic Technology Group he represented would be mentioned so suddenly, so he was taken aback for a moment, but then nodded quickly: "Yes, we call this radar Star of the Sea. The specific model is tentatively designated as Type 346. However, it is still in the process of transitioning from technical pre-research to the official start of the project. Director Zhou Wanxing should be in charge. I roughly know that the current technical route is active phased array, and T/R components use bipolar silicon components. If it can be produced domestically in the future, or a stable channel can be found to import gallium arsenide, then gallium arsenide-bipolar components can be used instead. Extremely silicon hybrid devices. Haizhixing is considered the number one project among the current 14 institutes. Guo Lin has also done work such as determining technical indicators, so although he is not involved now, he still knows some general parameters. What about the number of T/R components? Although the Chinese Navy currently does not have a phased array radar, there are obviously naval officers who are ahead of the curve in the equipment and at least have some understanding of the relevant basic knowledge. Of course, for a professional like Guo Lin, such a question is still too general, and it is not easy to answer, so he lowered his head and organized his words for a while before speaking again: "It is too early to discuss the number of T/R components now, and it is not too important, because first the specific size of the radar array must be determined based on the ship design given by the shipbuilding industry, which in turn involves your navy''s future plans. The overall plan for an anti-aircraft destroyer is obviously different between a five-thousand-ton ship and an eight-thousand-ton ship. "If we estimate based on the average that a single array is 4*4 meters square, then using bipolar silicon, the number of components can be about 3500-4000. After upgrading to gallium arsenide-bipolar silicon hybrid devices, it should It can be increased to around 5,000. Due to difficulties in engineering practice such as packaging, heat dissipation, and electromagnetic shielding, when the area of ??the radar array increases to a certain level, it is difficult for the number of T/R components to grow simultaneously with the size of the array, so the Air Police 200 has 5 An array of more than square meters can contain nearly 2,000 components, and the 16 square meters of the 346 is only twice as many. Of course, there is also the factor that the working environment of airborne radar is more conducive to heat dissipation. In short, it is not a simple mathematical problem. Then this radar should be considered relatively advanced in terms of technical level? Yang Shuyu is relatively familiar with foreign military equipment. Especially since 1994, Lockheed Martin began to put the Navy''s Advanced Distributed Combat System (DANCS) developed based on Aegis Baseline 5.3 into export, although it was impossible to sell it. It was given to non-allied countries, but many basic parameters were still disclosed, which gave China a conceptual understanding of regional air defense ships. "Based on the previously determined overall performance, it is at least at the same level as the Baseline 7 version of Aegis, which is also being developed in the United States. The main reason is that there is a gap in the research and development level of our semiconductor components and the performance of data processing computer chips. It shows the mechanical advantages of active phased arrays compared to passive arrays. ?Although Guo Lin still had some pity in his tone, it was from the perspective of an engineer, who felt that he could not convert technical advantages into performance advantages. However, for these naval officers here... ?This TM is simply a blessing from heaven! ??China''s newest warship, the Daocheng, which was put into service last year, is even slightly inferior to the second batch of Charles Adams-class ships after the No. 14 ship in terms of air defense capabilities alone. The latter was a ship commissioned in the mid-1960s. ?As a result, someone suddenly said that they are developing an air defense system that can compete with the new version of Arleigh Burke in the future. ??It feels like a poor boy who has been in poverty for twenty years suddenly learns that he is the only illegitimate son of a rich man. "So... Engineer Guo, I wonder when this Sea Star system is expected to be finalized and put into service, or at least a prototype will be built?" ??The person who asked this question obviously didn''t know these details before, so even his voice was trembling with excitement. "According to the plan when the project was established, it will be finalized in about 10 years." Guo Lin answered without thinking, but then he raised his head and glanced at Chang Haonan sitting opposite, and hesitated: If we estimate based on a more optimistic scenario, it can probably be shortened by a few years. In fact, just recalling all the things that have happened since he met Chang Haonan, Guo Lin felt that if the other party could participate in this thing, it would be conservatively estimated that it would take four or five years to win it. This time is mainly because the comprehensive test ship to be used for testing is still in the shipyard and it is not known when it will be delivered, and the time required for the intermediate modification, prototype manufacturing and other processes cannot be compressed, otherwise I am afraid shorter. But thinking about it, he couldn''t go overboard and make this decision for Chang Haonan. After all, the latter seemed to be very busy now, and he was from the aviation industry system. It was impossible for him to abandon his job and devote himself to the great electronics and shipbuilding industry. Coming... Ten years Although intellectually speaking, this time should be considered quite reasonable. After all, it took the United States 12 years to develop Aegis. But after all, we have just drawn an almost perfect pie, and now we know that even the wheat used to make the pie is They haven''t been planted yet, and they have to wait 10 years before they can be eaten, so there will be some disappointment. Even Yang Shuyu feels this way. ?So he asked with some reluctance: Then if we reduce some technical requirements, for example, we can temporarily use passive phased array antennas, is it possible to shorten some development time and let the troops have something to use first? ?This idea is basically to run quickly in small steps, and everyone here is familiar with it. ?However, Guo Lin shook his head directly after hearing this: "No, in fact, although the active array is more advanced than the passive array, they are technically branches in two different directions and are not on the same line. Our Electronic Technology Group has been in the field of electronic scanning since the beginning. If we go in the direction of active arrays and go back to passive arrays now, it will distract our research and development efforts. " "And the biggest problem facing Star of the Sea now is not actually the active array, but some more basic parts. For example, the most basic one, the antenna array structure requires a composite material box, which uses aluminum honeycomb sandwich panels and Aluminum alloy diaphragms separate thousands of honeycomb-shaped diamond spaces for T/R components. Large-diameter aluminum alloy fasteners are used to rivet composite materials and aluminum alloy parts. We have now completed all of these processes. No." "Another example is the reflective panel of the antenna array, which is the benchmark for the entire phased array radar structure. To manufacture this thing requires a 4-meter by 4-meter aluminum alloy billet. The current solution can only be imported from the Samara Aluminum Plant, but Rusals grade is different from the Alcoa grade we are used to using in the past, and its mechanical properties need to be re-estimated, or we can use two domestically produced 4-meter by 2-meter 70 aluminum plates for tailor-welding, but the welding requirements are not up to standard..." Even just listening to Guo Lin describe these problems, all the officers present expressed their confusion. Obviously, the engineering problems involved are far more complex than ordinary people think, and they are by no means something that can be built by working overtime in a short period of time. Wang Xiaomo and Chang Haonan mentioned it before when they talked about the design plan of the early warning aircraft. At present, the high-silicon aluminum alloy required for the phased array radar array can only be processed in China through manual milling. The processing efficiency and yield rate are average. For It is not satisfactory for a balance beam or wedge tail antenna. At present, the square antenna area of ??346 radar is at least three times that of Air Police 200, and then a ship needs 4 sides... It may not be possible to work by hand alone. In fact, what Guo Lin did not say is that these processing problems can only be regarded as relatively less complicated among the difficulties faced by the Haizhixing project. The more troublesome part is the design. ?However, those contents are more professional and profound. Even if they are spoken, few people present will be able to understand them. ??And judging from Yang Shuyu''s expression, what he just said has had a good enough effect, and there is no need to continue with the long speech. So forget it. Todays protagonists are, after all, our comrades in the Navy. (End of this chapter) Chapter 288 How come I, an undergraduate, became the director of the Supercomputing Center? Chapter 288 How come I, an undergraduate, became the director of the Supercomputing Center? The two of them talked until late into the night. ??In the end, Yang Shuyu was persuaded and decided to report to the higher authorities and invest the funds that had been applied for but were idle into the research and development of a medium-sized early warning platform. ?Using an early warning aircraft in the early years, even if it is just a wedge-tail structure, is obviously more cost-effective than buying a regiment of second-hand bombers. After all, the former is to solve the problem of whether or not, while the latter can only be regarded as a limited technological upgrade at best. Moreover, you only need to spend local currency and do not need to use precious foreign exchange quota. Its just Figure 22M3, not Figure 160. ?However, when Chang Haonan said the name Air Police 200H almost out of habit, Yang Shuyu immediately raised his hand to interrupt him. No, this is a bad name. "ah?" ?Such a reaction immediately stunned Chang Haonan, and his brain thought quickly but he couldn''t figure out what was wrong with it. ?In his previous life, he had never heard of the navy being particular about naming. "Most of the aircraft in the past were developed for the Air Force, so when it comes to the models used by the Naval Aviation, it''s okay to add an H after it to indicate the Navy. But this time it''s the same as the JH-7, but our Navy pays for it. Research and development cannot be named in this way. ?Yang Shuyu lifted his upper body off the back of the seat and said very solemnly: The model we use is called Air Police 200. If the Air Force also wants to equip it in the future, let that model be called Air Police 200K! There is quite a sense of joy in the tone of singing as a transformed serf. Although Chang Haonan didn''t quite understand the idea of ??competing among the military services on even such small details, he could accept it. Anyway, its the uncle who gives the money. In previous projects, he didnt have to worry too much about these things, but this one was different. ??You still have to hold the title of deputy chief engineer. In fact, in addition to the Tu-22M3, another introduction that Chang Haonan wanted to prevent was the two S300F (Rif M) air defense systems that were later installed on the Type 051C destroyer. The 051C model, in the original timeline, was mainly used as a means of technical backup and risk sharing. It was started and built almost simultaneously with the 052C and entered into service to ensure that even if the latter did have a problem, the Chinese Navy would not be without ships. Available. ?From the perspective of the time, this double insurance idea was of course no problem and very necessary. But for Chang Haonan, who was very sure that there would be no problems with the Haizhixing radar system, spending hundreds of millions of dollars on a double insurance policy that was bound to be useless was indeed a bit too extravagant. Of course, another function of 051C is to ensure that there will be no interruption in my country''s technical route in the direction of steam turbines, paving the way for future aircraft carrier power. Its just that this function does not necessarily have to be completed at such a high price. ?However, in the eyes of outsiders, his current main business is still limited to the aviation industry, so the questions raised by Yang Shuyu were all related to aviation, so Chang Haonan was unable to find a suitable opportunity to start the topic throughout the whole process. Ill have to talk about it later when I have the opportunity. According to the original plan, Chang Haonan should fly back to Yanliang with everyone from the 14th Institute of Electrical Engineering and the Flight Test Institute the next day, and then transfer to Chengdu to cooperate with the project team of Project 10 to complete what he said before That active stability control system. But early the next morning, he suddenly received a call from Du Yishan. Xiao Chang, how is your test in Donglai going? In this era, a small-scale friction with the Air Force will certainly not be publicized with great fanfare. In addition, the incident happened less than 24 hours ago, and the tone has not been set yet. Therefore, even if the classification level is sufficient, Du Yishan was not informed of this incident and only thought that Chang Haonan was testing the electronic warfare aircraft as planned. It has been successfully completed and the results are exactly as expected. ?Chang Haonan also kept his stories short and did not reveal too much about the past few days on the phone. "That''s good." Du Yishans voice seemed to contain some trembling feeling of suppressed excitement: "After you have finished dealing with things there, put down other things and go back to the capital. There is a very important event during this period. The time has not been set yet. You may be required to attend at any time. If relevant research is put on hold, You can take it back to school to do it. "but" Chang Haonan originally wanted to say that it would be more convenient to stay with the No. 10 Project team in Rongcheng, but as soon as the words came out of his mouth, Du Yishan continued: "Because of your work during this period, the school realized the importance of numerical simulation in the field of aircraft research. Therefore, at my suggestion, at the beginning of this year, our school purchased a supercomputer and established a high-performance computing center. Trial operation will begin soon Teacher, I will go back to school as soon as possible. ? It can be called a very important activity by Du Yishan. It is probably not a casual thing, and the level must be similar to the last time at Sandaomen, so I still have to go back. It has nothing to do with any new supercomputer. Due to the temporary modification of the itinerary, Chang Haonan waited for an extra day in Donglai before taking a lifetime free United Airlines flight back to the capital the next morning. It was Du Yishan who personally took him back to school. Teacher, what do you mean by that important activity? In fact, Chang Haonan was more concerned about the level of the super mathematician in the school, but after meeting and saying hello, he felt a bit too impatient to speak directly, so he decided to find another topic first. Of course, I can also satisfy my curiosity by the way. Its nothing, its just that the country is going to organize an event that reflects the new era of contemporary youth. As a youth representative of our school, you may attend and you may have a speech or something. ?Based on intuition, Chang Haonan believed that Du Yishan did not disclose all the facts to him. But he also knew that he wouldn''t be able to get anything out of him by forcefully asking, and besides, there was no way such a thing would be harmful to him, so he gave up and just took advantage of the situation to bring the topic to supercomputing. When will the high-performance computing center you told me about yesterday be opened? It is currently being debugged. Is it expected... It will be at the end of the month. The computing center will be hosted by our college for the time being. After you enroll as a doctoral student, I plan to let you take charge of this matter." Of course, you are a full-time Ph.D., and there is no way to set up a staff for you, so you can only manage it as the acting director at the moment. Du Yishans answer was beyond Chang Haonans expectations. Teacher, its okay to let me use the supercomputer, but if you ask me to take care of this computing center, Im afraid that in terms of energy... I know what you mean. ?Du Yishan turned his head and moved his eyes from the scenery outside the car window to Chang Haonan: "There are dedicated administrators responsible for specific administrative work, which is similar to the current computer room model, except that the access is more strict, so you don''t have to worry about it, but as the acting director, I will decide what to do next, which is good for you. " "This is the first supercomputer in the country that is independently operated by a university. It is a benchmark. I estimate that other schools will follow suit soon. The person in charge of the supercomputing center of each university will basically be their trump card major. When the time comes, you will definitely come to Beijing Airlines for experience and research. It will be more convenient for you to have a good relationship with these colleagues in the process. " "Although you are my student, and logically you will have some natural advantages in this area, but you achieved results too early and too fast. I think your body is still strong, so if you want to go further as soon as possible, you still have to consider Build your own network, do you understand what I mean? These words made Chang Haonan become serious and nodded immediately: I understand, teacher. "It''s good to understand. You are very capable, and although you are not so versatile in dealing with people, at least you are not as arrogant and disgusting as some people. Sometimes I feel that you don''t look like you are only in your early twenties. " After making sure that Chang Haonan understood his intention, Du Yishan''s tone also relaxed a lot: In short, no matter what, you have such conditions. As long as you can win over some supporters, the road ahead will easily become wider and wider. (End of this chapter) Chapter 289 I thought he was here to help me (Riwan!) Chapter 289 I thought he was here to assist me (every day!) ?What Du Yishan just said about going further is actually considering the possibility of Chang Haonan being an academician in the future. ?In the unspoken rules of the Academy of Sciences, if a senior academician like the former dies, unless there is really no successful student among his students, there is a high probability that there will be someone who can "replace" the academician''s position. ??As for whether you can get the title of "senior" again after being promoted to continue this cycle, that depends on your ability. ? Judging from Chang Haonan''s ability, it is estimated that he will be eligible for selection within a few years. However, the speed is too fast, and there is no chance to replace himunless something happens to Du Yishan. So its best to grab a spot on your own. At this time, good interpersonal relationships, if not the decisive factor, will at least be a plus. ?Of course, in Chang Haonan''s case, it was only a matter of time before he put on that hat. But for this kind of thing, it is better to evaluate it sooner rather than later. It is best to evaluate it directly in the first year to save worry and effort. At the same time, it can also leave the opportunity of replacement to those who need it more. Thats right, teacher. Looking at the car driving on the road next to the school, Chang Haonan suddenly remembered something: Do I have to spend a few days working on a graduation thesis? No matter what level the two people discussed just now, it cannot change the fact that he is still an undergraduate. And he is an undergraduate who is about to graduate. You must know that his classmates are probably all worrying about their graduation thesis. Chang Haonan naturally cannot avoid this process, but what worries him is that he has too many achievements and most of them are confidential. For a while, he had difficulty in choosing, and he didn''t know where to pick up some scraps. ?Du Yishan was also happy when he heard this question. The main reason is that there is indeed a small difference in height between the two connected topics. Its rare that you still remember. I thought you had forgotten about your graduation thesis. "This...how can it be done? We still have to go through the process." ?Chang Haonan scratched his head and showed a somewhat embarrassed smile He did forget it before. But you remembered it a bit late. The college requires the graduation thesis to be submitted the day after tomorrow. You can handwrite or print it. ?Du Yishans next words made Chang Haonan take a breath of air. The temperature in the car has risen a lot. Then...it seems like its not too late? Follow DDL, every Party B is familiar with it. ??There is only one problem with science and engineering papers, that is, writing is not very time-consuming, but the process of drawing pictures, making tables and writing formulas is extremely cumbersome, so Chang Haonan felt a little guilty for a while. ?But even though he said this, he was very sure that even if he really couldn''t hand it in on time, the other party would definitely have a way. Haha, forget it, I wont scare you anymore. ?Seeing Chang Haonan''s somewhat helpless reaction, Du Yishan showed a smile that was somewhat inappropriate for his age, and then explained: "You may not have time to work on your graduation thesis. I have already thought of it, so during the time when you went to Jinling to do the project, I asked your senior brother Fang to take out some moderately difficult topics from his research and use them as your undergraduate work. Of course, you have to adjust and revise the specific content of the paper yourself. Senior Brother Fang? Chang Haonan was stunned: Isnt this... bad? ??Undergraduate theses in this era are not yet in the database, so many people actually copy them directly. But Chang Haonan just might not be able to catch up with DDL, but it''s not that there is nothing to write. It''s really... unnecessary. Hey, theres nothing wrong with it. ?Du Yishan waved his hand: "The project Fang Zhen is working on now continues along the direction of your previous research. You have laid a solid foundation for him. There is a lot of work in it that actually has to be counted on you. Besides, the undergraduate thesis is not It will be published, and even if it is written, it will not affect his doctoral thesis next year. Is that so? Chang Haonan met Fang Zhen once before going to Jinling, but he only stayed for a short time before being asked to leave, so he didn''t have time to talk about research directions and other things. But if the latter continues to study in the field of computational structural mechanics, then the situation is indeed as Du Yishan said, and he cannot take advantage of the other party. Du Yishans special car drove slowly into the campus of Beijing Hang University, turned a few corners and parked in the parking lot behind the aircraft building, which was actually on the roadside. ??In the morning in Beijing in early April, the cold is already much weaker than in winter, so you can already see some students walking or exercising outside from time to time. But the number of people we saw along the way today seemed to be too many, and they all gathered outside the college building. What day is it today? I feel like there arent usually so many people at the door? ?Chang Haonan and Du Yishan had some difficulty getting through the crowd. "Today is the re-examination for the postgraduate entrance examination. You can''t just forget about it just because you are exempted from the exam, right?" ?Du Yishan straightened his clothes that were a little messy and replied half-jokingly. Postgraduate entrance examination re-examination This is a term that can be said to have shattered time and space for Chang Haonan. He stopped walking up the stairs and turned back to look at the dark crowd outside the building. For a moment, I seemed to see myself in the crowd in my previous life. Xiao Chang? ?Du Yishan, who had already reached the first and a half platform, noticed that Chang Haonan was not following him, so he turned around and called out, and then pulled the latter out of his fugue. Chang Haonan quickly followed up with three steps and two steps at a time. Whats wrong? Do you know anyone in there? No matter how unrestrained his mind, Du Yishan could not guess what his student was really thinking just now. He just thought he saw a familiar face. ?In this era when college students are not common, it is quite low probability to meet someone you know among those who are about to enter the threshold of graduate school. Thats not true. Chang Haonan shook his head: I just remembered that a year ago, my biggest dream was to be one of them. This is definitely not false. One year ago now was the eve of his rebirth. For Chang Haonan at that time, it was already quite good to pass the postgraduate entrance examination and continue his studies. How could he dare to think that he would get the opportunity to make an exception and go directly to the doctorate? . I saw your course design assignment at Liu Hongbos. It was actually a complete coincidence. Du Yishan also recalled: "So, it can be said that both of us are very lucky. It is probably due to fate. However, with your ability, even if you go to work under another teacher, you will only lie dormant for a few more years at most, and you will get up sooner or later." The two of them opened the door to the student office of the research group while chatting about what happened last year. Because it was a weekend, only Fang Zhen stayed inside. Yao Mengna went to Yanliang yesterday because she still wanted to follow up on the improved JH-7. As for the other masters, they were generally not particularly desperate. ?Compared with the last time Chang Haonan came back, the biggest change in the research team is that there is an extra computer on almost every table The 14th Institute of Electrical Engineering is indeed very wealthy. After half of the project funds they gave to the research team were allocated to Chang Haonan personally, they still had spare money to carry out a large-scale upgrade of office equipment. "teacher." Fang Zhen raised his head and looked at the door: There are still junior brothers? Well, how are you preparing for the graduation project I asked you to prepare for Xiao Chang? ?Du Yishan moved a chair and sat next to Fang Zhen. The latter''s expression immediately became tense. ? Anyone who has studied in graduate school knows that it is never a wonderful experience to have a supervisor sitting next to you, even if you have done everything well. "Everything... is ready. It is a part about the design of thick blunt trailing edge blades. Junior brother can just change it according to his own writing habits. Of course, the theoretical part also uses a lot of things that junior brother has made before. " Fang Zhen said as he took out two floppy disks from the drawer and handed them to Chang Haonan in front of him: One contains documents, and the other contains attachments. He still remembered that when he first saw the person doing experiments in the evening in the laboratory, he also thought about letting him use his expertise in computational simulation to help him, and then share part of his doctoral thesis in exchange. . The result is now But he became the assistant for this junior brother who has not yet graduated from a bachelor''s degree... Oh, I cant say that yet. ?The one who did the killing was Yao Mengna, and he wasn''t even qualified enough to do it. "well" Fang Zhen sighed secretly, with mixed feelings in his heart. "I thought he joined the group to assist me..." In fact, I want to intersperse some interesting daily life, but I am a handicap in this regard, and I really dont have any ideas. But in fact, if you sort out the timeline, you will find that the protagonist does not keep spinning all the time, but only on rest days. Everyday I pass by a series of ellipses... (End of this chapter) Chapter 290 Patents make money Chapter 290 Patents make money Thank you, senior brother, please worry about me during this time. ?Chang Haonan simply thanked him and put the two floppy disks into his bag. Where is the word? Fang Zhen quickly waved his hand. He had basically no airs as a senior brother before, let alone in front of this monster: If it werent for you, my junior brother, I probably wouldnt have finished my graduation thesis yet. How could I be as relaxed as I am now There was a lot of gratitude at the end of the sentence. This is completely sincere. When he and Yao Mengna were responsible for performing wing flutter analysis on the MA-60, Fang Zhen led the research team into a dead end. If it weren''t for Chang Haonan''s miraculous rescue, he would have been able to conclude the problem hastily along the original route. . Based on their research situation at the time, it could only be regarded as application-level research based on existing mature technologies and theories, with almost zero innovation. It would not be a big problem to graduate a few masters, but it obviously did not meet the requirements for doctoral training. Now, although the core technology of the generalized aeroelastic equation under nonlinear flutter conditions was developed by Chang Haonan and has been named by Du Yishan and asked not to be published publicly for the time being, this is equivalent to opening up a scientific research path. A new direction, just pick up some leftover materials nearby, and then change the application field to engage in interdisciplinary research, it is enough to write a doctoral thesis. Actually, if we really talk about the workload and difficulty of the work, it may not be greater than before. This is the dividend that pioneers in the field can reap. ?Some young mentors who have made such breakthroughs in theoretical aspects can even rely on one of their own achievements to provide proof for their Ph.D.s within a few years, so that they can graduate on time. Anyone who has received a Ph.D. knows how attractive this is. As a result, it is easy to form a siphon effect, attracting several batches of the best students to lead a research group. Of course, Chang Haonan has not found a mentor yet, and Du Yishan has been flying for most of his life and is already considering landing. So the first person the former took to fly became his senior brother. ?While a few people were chatting, another sleepy-eyed man yawned and pushed the door in from the outside. It is summer. ??Its the masters student who worked on the project with Fang Zhen and Yao Mengna. Then she saw three people sitting in the office. Senior...brother? Although she and Chang Haonan haven''t seen each other for a few months, they have been hearing that the latter has made many achievements in the 603 Institute. In addition, even Fang Zhen often talks about whether his doctoral thesis was entrusted to others. The other party''s blessing was such that Xia Tian even hesitated when calling out this title. I feel that calling me junior brother is no longer respectful enough. But there doesnt seem to be any other name. ?At this time, Du Yishan also stood up again: I have a meeting to hold in the morning, so you guys should be busy first. Xiao Chang, come with me to get the key, and then you can take a look at your new office over there at the High Performance Computing Center. New office? Mine? Hearing Du Yishan talk about this, Chang Haonan noticed that his workstation in this room was still the same, and there was no computer of the same style like others. We cant let the people in charge of the computing center sit in the same room with us. If word spreads, it will seem like we are short of a room at Beijing Airlines, and many things will be inconvenient. Fang Zhen next to him smacked his lips, with some envy in his tone. Xiao Fang is right. Even if you dont go there often, the place must be reserved. In fact, even the computer room equipment and other equipment have been shipped, but the manufacturers engineers are still doing final debugging, so there is no way to officially open it. Du Yishan also explained. Chang Haonan only learned that he was appointed as the person in charge of the computing center on the way. He never expected that even the office matters had been settled. He was stunned for a moment before nodding, and then followed Du Yishan out again. "well" Looking at the two young and old people leaving, Fang Zhen sighed in confusion: "Think about it, when my junior brother first joined the group last year, I personally helped him clear up his position. It turned out that it was less than a year. They have already moved to independent offices, and I havent even graduated from my Ph.D. Looking at the bright side, he hasnt even enrolled in the Ph.D. program yet. ?Xia Tian patted Fang Zhen on the shoulder, looked in the direction of the door and replied. Fang Zhen became even more depressed after hearing this: Ill just assume you were comforting me just now About half an hour later, Chang Haonan appeared in the student office of Du Yishan''s research group again. Junior brother? Why are you back again? Xia Tian poked her head out from behind the huge CRT monitor and asked curiouslybecause she was relatively short, her whole body would be blocked by the computer when she was sitting. Obviously she thought Chang Haonan would definitely use the new personal office. After all, who doesnt want a separate work space? ?Chang Haonan waved his hands and sat back in his seat: Forget it, that office has just been renovated, and the smell is so strong that its going to kill me, and construction is still going on around it. All the noise makes me have a headache, so I went to identify the door and ran away. At this moment, Fang Zhen also suddenly remembered something. He stood up and found a document bag from the bookcase next to him, and then came to Chang Haonan: By the way, junior brother, you came back just in time. I have a project here that needs to use a patent you registered before. My patent...the one that designs the way the blades curve and sweep? ?That was registered last year when Chang Haonan took advantage of his free time to do private work for a company. According to international practice, if a patent is issued during the research process, the person who completed the patent will be the name of the researcher, and the owner will be the name of the person who funded the project. ??If it is a vertical topic, then write the name of the organization. Horizontal topics are usually enterprises. Of course, if the researcher conducts the project at his own expense, it belongs to him alone. Chang Haonan''s situation was quite special. Firstly, he was a small company and he didn''t pay much attention to patents. Secondly, he didn''t have enough money to sponsor a complete project. ?The five thousand yuan is only Chang Haonan''s hard work fee and Wu Yifan''s intermediary fee, and it certainly cannot be calculated according to research funding. In short, a series of reasons led to the ownership of the patent finally falling into Chang Haonans personal hands. "Yes, this project requires the use of a high-altitude swept-blade propeller. The design is very similar to the one in your patent. Party A considers that there may be legal risks in the future, so let me talk to you about the issue of patent royalties. " As long as it is not an essential standard patent, patent royalties are a matter completely decided by negotiation between the two parties. No one can control whether it is a free license or a sky-high price. Thats no problem. What are they planning to do with this propeller? How much are they prepared to pay? ?Chang Haonan is a layman who is still interested in money. He put the computer he had taken out back on and took the file bag from Fang Zhen next to him. There are many ways to collect patent royalties, and Chang Haonan naturally has to choose the one that is more beneficial to him. For example, for products with large shipments, such as ordinary motors, centrifuges, etc., like Qualcomm in the future, you can first charge a relatively low entry fee, and then charge a certain percentage of the selling price for each product. Commission. ??And if the output is very small, it is better to negotiate it once and for all, and save the trouble of annual verification later. (End of this chapter) Chapter 291 Stratospheric airships and the international internet Chapter 291 Stratospheric Airships and the International Internet "Well... As far as our relationship is concerned, I won''t go around in circles. The patent budget given to me is 50,000, authorized for two years, and can only be used on a specific model of propeller blades." Fang Zhen directly gave a fairly sincere number. ?A license like this with a very short license period and very restricted scope and method cannot command a too high price. Of course, if you find a lawyer who specializes in patents and fight with the other party, it is probably not a big problem to pay a few thousand to ten thousand, but it seems that it is not necessary. After all, there is still a relationship with Fang Zhen. Furthermore, in the 1990s, domestic intellectual property management was in a state of chaos. If the other party was pushed into a hurry, they would directly infringe the rights. The cost of litigation for Chang Haonan was also very high. So its good to be like this. The amount and licensing method are fine, but with this high-altitude swept-blade propeller, do you want to generate electricity in the sky? ?Chang Haonan opened the portfolio. It contained basically some legal documents and did not involve much technical content. Due to the principle of propeller propulsion, no matter how high the design efficiency is, problems of insufficient thrust and lift will occur at high altitudes where the air is thin. Therefore, unless a propeller aircraft adopts a particularly exaggerated aspect ratio, whether it is a piston or a turboprop, The ceiling is basically around 10,000 meters. ?Only a few cheaters like propeller-fan engines can further break through the height. He remembered that in his previous life, he had the wild idea of ??bringing wind turbines into the air with a floating balloon, using the strong winds in the troposphere to generate electricity, and then transmitting it to the ground, so he asked this question. ? Its just that this idea has little value from the perspective of engineering practice. If you really take on a similar project, the best option is to grab the bucket and run away. Thats not true. The project Im working on now is to work with a team engaged in meteorological research at Zhejiang University to design a high-altitude airship that can remain in the stratosphere for a long time. ?Seeing that Chang Haonan was interested in his project, Fang Zhen simply pulled a chair and sat next to the former: Because it may take two or three months to go up, and it needs to move within a certain range to track meteorological conditions, so it must have a certain degree of autonomous power. Although the meteorology of Zhejiang University has declined in recent years, since the founder of modern Chinese geography and meteorology was their former president, its reputation is still there, and it should not be a fake project to deceive people. High-altitude airship This unexpected term plucked a certain string in Chang Haonan''s mind: How high? ?During the summary meeting held in Dongnae the day before yesterday, someone proposed to build a communication relay aircraft to solve the problem of data transmission beyond 600 kilometers due to the current insufficient number of communication satellites. When chatting with Luo Huichuan before, he also mentioned that the reason why aviation units rarely fly to the depths of the South China Sea in recent years is that in addition to the limited range of aircraft, another big factor is that it is difficult to communicate with them after flying far away. Get in touch with the base in Qiong Province. It shows that this demand still exists. ??And not only for military use, this type of equipment can also provide emergency communication support in the face of emergencies such as major natural disasters. ??Its just that the cost of building a few aircraft was too high and the effect was limited, so it didnt take shape. But now thinking about it, if we abandon the fixed-wing platform and use airships instead, it seems that the ideas will suddenly open up. "They want to study something called the quasi-zero wind layer of the stratosphere. The height is about... 22km to 28km. Near this range, the east-west wind changes, and the north-south wind component is also very small. It can use less energy and power. Achieve regional residence or trajectory planning of the aircraft at a cost. For example, the airship we are designing now has a load capacity of about 16 to 25 times in seasons with zero wind layer compared to seasons without zero wind layer. Very exciting data. Although it may be difficult to deploy a radar on it, it should be enough if it is just used as a communication relay. In other words, the appearance of this zero wind layer is seasonal? ?Chang Haonan raised his eyebrows. If this is the case, the situation will become a bit complicated. Engineers still prefer stable phenomena. "This is what they are preparing to study. It can currently be determined that there is a stable zero wind layer from the end of May to the beginning of September in the area around 10 north latitude near Qiong Province, with the average wind speed not exceeding 5m/s. This data is also The standards I used when designing airships. As for the more specific theoretical part, they told me something like El Ni?o-Southern Oscillation, but to be honest, I didnt understand it at all. If you are interested, I can put that Ill give you my contact details. "I have" In fact, the first person Chang Haonan thought of just now was Lin Guofan. The two had cooperated quite well when making aircraft icing predictions, and the other person was also a meteorology expert and should know more than himself. But this project has not yet been completed by Zhejiang University. In academia, it is almost a taboo to reveal the results that others are working on but have not yet published publicly. It is a taboo to dig up people''s ancestral graves, which is very damaging to the reputation. So he thought for a moment and finally nodded: Okay, senior brother, please help me contact them and tell them that there is a research on application level that needs to be cooperated with them. Both Beijing Hang University and Electronic Technology Group will participate. ?Although he has not yet made contact with the 14th school, Chang Haonan still brought the other party in with determination. ?Mainly because these days, Dianke Group is a relatively wealthy owner, and their name will be more attractive. Why do you need me to contact you? Just send them an email. ?Fang Zhen pointed to a computer next to him. ??This is the one on which Chang Haonan calculated the wing flutter model before. Is the laboratory connected to the Internet? Chang Haonan blurted out, and then he felt that this question seemed a bit similar to "How is the war on Reach?" But there is no way. Since he started participating in the 83 Project last summer, he has not spent much time in school, and he knows almost nothing about the situation in the laboratory. Yes, it happened at the beginning of the year. Fang Zhen nodded, stood up and opened the computer next to him, as well as the cat hanging on the wall next to him. The latter then made a creaking dial tone: Not just laboratories, but also places such as classrooms and libraries are connected. It is said that the school plans to provide Internet access to student dormitories next year, but they will all be charged by the hour. The second half of the 1990s was a period of extremely rapid development of the Internet in China. On April 20, 1994, China officially connected to the international Internet, but there was only one 64K international dedicated line in the country. By 1995, only a handful of large cities across the country, such as Beijing, Shanghai, and Pengcheng, were connected to the Internet. However, until Yinghaiwei was founded, there were still no ordinary users. By 1997, almost all large and medium-sized cities had Internet connections. He hasnt paid attention to it for more than half a year, so the changes have naturally been earth-shaking. ?Chang Haonan stood up and sat in front of the computer connected to the Internet. In the 1990s, it was still illegal to use a router to connect two or more computers to share the network. Although many people did it secretly, it was definitely not feasible to do it with great fanfare in the laboratory, so the computers on other workstations were Can''t access the Internet. Is it a domestic network or a foreign network? This is what Chang Haonan is most concerned about now. He wants to develop multi-physics simulation software in the future, and research in this area needs to refer to many foreign research results. There is absolutely no future by relying on paper journals alone. ??If you can only access the intranet, it doesn''t mean much. ?In this era, the internal and external networks are physically isolated, and it is not like in the later days to get a VPN and be able to access it casually. "What?" Fang Zhen turned around, with a look of confusion on his face. ??The most he usually uses the computer is to send emails, and he doesn''t care much about that. ?Chang Haonan had no choice but to rely on his own memory and change the way he asked the question. "Uh... the first three digits of our dial-up phone number are 163 or 169?" 163 is the Internet, and 169 is the domestic network. Its 163, which is very expensive. I heard from the teacher that it costs 6 yuan an hour. I suggest you edit the content of the email before sending it online. very good. ?Chang Haonan secretly celebrated in his heart. Finally, it has a bit of a modern meaning. (End of this chapter) Chapter 292 webofscience Chapter 292 webofscience Although Huaxia sent its first email in the 1980s, in fact, until the mid-1990s, due to network hardware conditions and cost constraints, this method of contact was not popular in China. Even in 1995- During the rapid development of the Internet in 1997, the popularity of email was still half a beat slower. In Chang Haonan''s impression, it was not until around 2000 that scientific research institutions such as universities and research institutes began to use it on a large scale. Zhejiang University actually thought of leaving an email address for Fang Zhen, which is still at the forefront of the country in this regard. It can only be said that it is worthy of being the Internet (9) Internet (6) capital of the future! In the end, Chang Haonan spent about 10 minutes on this 56kbps bandwidth network and finally sent the email with difficulty. ??Before the rebirth, if the network were to be this slow, the operator''s phone number would probably be blown up. But for him, who has been away from the Internet for nearly a year, the requirements for the Internet have been reduced from "smooth" to "just have it." In 1997, what else do you need for a bicycle? After sending it, Chang Haonan did not immediately disconnect from the Internet as Fang Zhen said. Instead, he entered several foreign academic database URLs that he thought were established earlier and tried. Just kidding, even if he keeps half of the funding provided by 14, the remaining half will be enough for the laboratory''s half-year expenses. What''s wrong with going online? As he expected, most of the websites he was familiar with were blank. But fortunately, and to Chang Haonan''s surprise, when he entered the URL of webofscience with almost no hope, the computer did not directly pop up a prompt that the domain name did not exist. After the progress bar read for a full minute, a familiar web page finally jumped out. Holy shitthis database was established in 1997 ?Looking at the crude login interface in front of him, Chang Haonan even felt a little moved Finally I saw something familiar. WOS at this time must have just been established, and it was far less content-rich and fully functional than later generations. Chang Haonan spent a long time searching on the web page and even refreshed it twice, but he couldnt find the entrance to register an account. ??Of course, even if he can register, this database still requires authorization to view. ?However, it is not difficult to obtain authorization. ?Before Chang Haonan was reborn, Beijing University of Aeronautics and Astronautics had already entered the U.S. sanctions list, but in 1997, it is estimated that only some researchers from universities on the other side of the ocean had heard of such a school in the East. I am afraid that many of them are known through the paper co-published by Chang Haonan and Xu Yang. ??And in order to capture more markets during this period of rapid expansion of the Internet, the United States has also adopted a very open attitude in terms of network access. ?So basically its not difficult to get access to these academic databases as long as the school comes forward. ?Thinking of this, Chang Haonan couldn''t sit still. He turned off his computer and cat, grabbed his coat from behind his chair, and prepared to leave the office. As for the email reply from Zhejiang University... ?People in this era generally do not have the habit of checking their mailbox twice every day after going to work and before getting off work. Moreover, today is Sunday again, so it will have to wait until tomorrow at the earliest. Brother, remember to check your email for me tomorrow, and if the other party replies to the email, remember to contact me ?Chang Haonan originally wanted to remember to contact me, but he immediately realized that the other party actually had no way to contact him. Forget it, Ill come over by myself tomorrow. Maybe I should buy a mobile phone He thought this after leaving the office. Confidential matters must not be discussed on the outside phone, but as his business becomes more and more busy, a communication tool that allows people to contact him anytime and anywhere has become more and more important. Moreover, after completing these horizontal projects started last year, Chang Haonan only has a small amount of 200,000 in bonuses and labor fees. Although he is certainly incomparable to those wealthy businessmen who do business, he can still be regarded as a person. This is a considerable amount of money, and at the same time, the price of an ordinary mobile phone has gradually dropped to less than 2,000 yuan, which is no longer completely out of reach for ordinary people. ?While thinking about this matter, Chang Haonan had already arrived at the door of the dean''s office in the same building. Although it was the weekend, Tang Lintian was still inside. For schools like Beijing Airlines, there is no inequality between colleges. The School of Aeronautical Science and Engineering is the core of the entire school. Not only are other majors generally set up around its needs, but the dean of the school will also have a stable position as vice president. ??So things like applying for a database can be done directly by contacting Tang Lintian. When he saw Chang Haonan knocking on the door, Dean Tang''s face instantly turned into a flower of joy. ?This somewhat exaggerated reaction even made the former feel a little chilly, and he hesitated for half a second before walking into the dean''s office. And the door was specifically left open. Dean, I... ??As a result, before Chang Haonan could express his intention, the other party stood up directly and pulled him to the sofa next to him. Then he stood up and took out a silver jar from an inconspicuous small compartment in the lower right corner of the filing cabinet on the other side. Xiao Chang, you have earned a lot of face for our school and our college this time... ??Tang Lintian took out the tea leaves from the jar, picked up the kettle, brewed it himself, and placed it in front of Chang Haonan. ?With this set of flowing movements, combined with the expression on his face, those who didn''t know it would have thought that Chang Haonan was some big leader who had come down for inspection. UhI ?Chang Haonan didn''t react for a while. Mainly because there are so many things that he has done recently to bring glory to the school and college, and for a while he didnt even know which one Tang Lintian was talking about. Academician Du has already told you that when the time comes to deliver his speech, he must mention the name of our school. ?Now he understood that it should be the matter of attending the event as a youth representative. Du Yishan had told him about it in the car before. "Of course. After all, our school has provided me with such a good platform. I have never forgotten the well-digger. Moreover, I am also the representative of our school. I must mention a few words." The straightforward statement made Tang Lintian feel relieved. Then Chang Haonan found the opportunity and told him the reason for his visit today. After finishing speaking, he picked up the tea cup, prepared to moisten his throat, and then systematically described the value of this database. As a result, Tang Lintian next to him didnt even blink: I will tell the principal tomorrow to apply, apply immediately! (End of this chapter) Chapter 293 Changs model Chapter 293 Changs Model ?When he walked out of Tang Lintian''s office, Chang Haonan still felt a little unreal. ? He ??worked from school to research institute in his previous life, but he had never experienced this kind of efficiency in doing things. From entering the door to greeting to making the request and finally getting the agreement, it took less than 10 minutes in total. Even when we left, the tea was still warm. ?Standing in the corridor of the aircraft building, Chang Haonan was a little confused about what he should do in the afternoon. ?Before talking to Tang Lintian about the database, he had been thinking about buying a mobile phone and applying for a number. ?Two of the three major operators that everyone will be familiar with do not yet exist at this time - China Mobile will not be established until 1999, and China Unicom will not be established until 2000. In 1997, only China Telecom provided commercial mobile phone services. This company only became independent from the General Administration of Posts and Telecommunications in 1994. It has only been three years since then. It still has a strong official institutional atmosphere, such as not working on weekends. So this matter can only be done tomorrow. The computer room was still being renovated, so there was nothing he needed to deal with. ?After thinking for a moment, Chang Haonan remembered that just before he left, Tang Lintian asked insinuatingly about the progress of compiling the textbook... Finally he decided to go find Liu Hongbo. According to the impression from his previous life, this teacher almost never had a day off before he got married. As expected, it only took more than ten minutes. After searching several places where the other party often appeared, Chang Haonan found Liu Hongbo in the student office. Teacher Liu, good afternoon. Even though the two of them always addressed each other as seniors and juniors when they met, after all, they were in front of other people''s students. Chang Haonan thought about it and decided that there was no need to put on the airs of this senior uncle. ?Furthermore, in fact, the title Teacher Junior brother? Liu Hongbo himself didnt care about this. He was surprised when he saw that the person coming was Chang Haonan: "You came back at the right time. I just have a lot of questions to ask you." About the teaching materials? ?Chang Haonan wanted to know why the other party was so distressed. Speaking of which, he did not do it properly. The original plan was to come back and help compile the textbooks after finishing his work in Haojing. However, there was a project suddenly coming up at the 14th Institute, so in the end he had to let Liu Hongbo do it himself. I worked hard for two months. "Yes, I have almost finished the first five chapters according to the outline and ideas you gave me, which is from the introduction to the linear analysis of solid mechanics and structural mechanics. But starting from the sixth chapter, junior brother... are you really sure? Do you want to include the content of nonlinear finite elements? I tried to show it to first-year graduate students, but no one could understand it..." Liu Hongbo handed a piece of information he was holding to the student, and then took Chang Haonan back to his office. It should be said that this efficiency is quite good, because the latter outline has a total of twelve chapters, of which the last chapter is a program example. You can just copy and paste it, leaving eleven chapters. In terms of length alone, nearly half of it has been completed in two months. ?Of course, if you consider the difficulty of compilation, it may only be about a quarter... On the desk, the computer screen is showing a densely packed pile of tubes that are constantly winding and stretching. Chang Haonan remembers that this thing seemed to be called a three-dimensional pipe. It was a screen saver that many people liked to use back then. Due to mechanical problems with CRT monitors, if the screen remains motionless for a long time, the electron beam will bombard the same position of the phosphor layer for a long time, causing accelerated aging of the screen. Various screen savers are designed to prevent this from happening. But for Chang Haonan, this is indeed a long time ago. Only certain brands of OLED screens will experience similar screen burn phenomena in later generations, and screensavers have gradually become a historical term, although Juhardware still retains it in Windows 11. Of course Liu Hongbo didn''t know that Chang Haonan was thinking about so many things during the few seconds he stared at the screen. He shook the mouse twice to end the screensaver and then entered the password. The content displayed on the screen is replaced by a Word document. ??But this page only has a title. General Methods of Nonlinear Analysis There is a blank space below. I have rewritten this part for the third time. No matter what ideas I use, the feedback I get is basically the same. I just cant understand it. Liu Hongbo, who looked distressed, pulled Chang Haonan to his chair and asked the latter to sit on it. Then he moved a stool to the corner and sat next to him: I think we can start directly talking about solving the equilibrium equations later, skipping the nonlinear analysis part? "In addition, there is a section below, finite element analysis of heat transfer, field and incompressible fluid flow problems. I think this chapter has nothing to do with the theme of our textbook. These aspects are rarely used in the aircraft design process. " "besides" Obviously, Liu Hongbo was very careful in the process of writing this textbook. Otherwise, he would just pile up all kinds of theories and get some examples at random, and that would be it. He would not encounter these troubles at all, let alone make any suggestions. ?However, these designs of Chang Haonan are naturally well thought out, and many of them are pitfalls that he and his colleagues have stepped on before. "How about that? The three prerequisites for linear analysis are that the displacement of the analysis object is infinitely small, the material has linear elastic properties, and the boundary conditions remain unchanged throughout the process. But for most problems, especially those involving large deformations , this assumption simply does not hold. ?Chang Haonan immediately shook his head. He would never give up the corresponding request because of the difficulty. ?Because life is not a game, there is no story mode difficulty option. If it is not taught in school, it can only be learned at work. At that time, it was not as simple as passing a subject. "Not to mention, when I did the wing flutter analysis for the MA-60 last year, I used a combination of nonlinear finite elements and nonlinear beam models. If you haven''t even learned the basic theory, how can you solve the practical problem? When there is a problem, you will definitely suffer a big loss. But we must also consider the acceptance level of students. Liu Hongbo tugged at his thick hair: "The model you proposed is now called Chang''s model in our industry. That is to say, the teacher suppressed the original results and did not publish them publicly. Otherwise, you would probably be a fellow of the American Society of Civil Engineers... You can''t count on everything. The students all have the same standards as you. I dont have that thing Chang Haonan waved his hands and was about to say that he was not interested, but suddenly he noticed a question: Wait, why the Institute of Civil Engineers? (End of this chapter) Chapter 294 Writing a textbook is really a beautiful thing. Chapter 294 This textbook is really a beautiful thing. Because todays civil engineering often has nothing to do with soil and wood, but the study of structural mechanics, which happens to be in great need of results like yours. Liu Hongbo shrugged and replied. "All right" After a brief digression, Chang Haonan quickly returned to the textbook: In short, no matter what, we still need to lay a good foundation, so that even if we cant apply it in the future, at least we wont make a big mistake when we go to work and apply what we have learned. Furthermore, if we graduate students from Beijing Hang University cant even understand nonlinear finite element analysis, then others shouldnt laugh at us to death? The last sentence was obviously very lethal. After hearing this, Liu Hongbo immediately stopped expressing his objections: But we have to find a way for students to continue learning. "This is a matter of teaching material arrangement. If you ask them to do nonlinear analysis of universal states, of course they will get confused. We can lower the threshold a little and take it step by step." Chang Haonan pushed the keyboard frame back under the table, then took a scratch pad and a pen from the side, and drew a table with a few strokes: "In the first step, we first analyze the problem where only the material is nonlinear and other assumptions remain linear. In the second step, we extend the problem to nonlinear materials and large displacement but small strain. Finally, we consider universality. A completely nonlinear problem..." As for the specific arrangement of the content of this chapter, it should also include more examples, and try to let them understand some relatively simple things from these examples, such as deriving the incremental motion equation of continuum mechanics..." As he spoke, he wrote down an equation with a not complicated structure on the paper: Ҧ(0)^(t+t)(i)u(i)dV(0)^(t+t)R=f(t+t)^Su(i)^SdS(0)+ f(t+t)^Bu(i)^dV(0) "If we can guide them to this step, then whether it is only material nonlinearity, or the complete Lagrangian form and the updated Lagrangian form, they can be easily obtained through transformation, or they can be deepened in two chapters. Understanding when analyzing basic structures such as frames and thin-walled rods. "Well" Looking at Chang Haonan who was writing furiously, Liu Hongbo felt confused for a moment: I know this equation, but the derivation process...would you like to write it down in more detail? ?Many years later, almost all engineering students will remember the names Chang Haonan and Liu Hongbo unforgettably. When I was in school, my feelings towards these two textbook editors were basically gnashing of teeth. ?However, after entering the workplace, they often invariably take out this textbook that often appears in their nightmares. Some people even burn incense on that book before running the simulation program also designed by Chang Haonan, hoping that the ancestor will bless everything well. ??However, few people know that during the writing process of this sacred book in the field of engineering simulation, the second editor also went through a mental journey that was very similar to the one they had during class... Of course, writing a book cannot be explained clearly in one afternoon. Chang Haonan talked from afternoon to evening before sorting out the basic structure of Chapter 6 for Liu Hongbo, and then based on his experience during this period. Through the work, a series of after-school exercises that have been declassified but are still very practical have been refined. ?In his previous life, when Chang Haonan was in school, he was very troubled by the random difficulty gradient design of the after-school exercises. Some of them could be calculated with almost no effort, while others were difficult to get right even if he thought about it. Whats even more despicable is that the answers to many of the exercises are also very unintentional. So there is a poem that says: That is to say, it is easy to see the commonplace, just follow the example above. The answers to the exercises are left here so that it is not difficult for the readers to prove themselves. The opposite is true in the same way, and the inference is naturally established. Omitting the process QED, it can be seen from the above that the proof is complete. So, even though he was given a lot of extremely complicated exercises, he still considered them carefully and at least wrote down his solution ideas in the answers in detail. Its really kind. In fact, the process of writing textbooks is not just an output process for Chang Haonan. Since the sources of his theoretical knowledge are complex, including but not limited to what he learned from various papers in his previous life, what he learned at work, what he learned after his rebirth, and what he learned from the system, even from a personal perspective, he needs to do this. An opportunity to sort out your own knowledge system. The intuitive result of this kind of sorting out is that after several hours of discussion with Liu Hongbo, the system''s [theoretical experience] actually increased slightly by 300 again, reaching 8800 points. ?This made Chang Haonan want to go to the other party to communicate with him the next day.?????But this is just thinking about it. Even though Chang Haonan only lectured for one afternoon, it would take more than ten days at the fastest to convert what he said into a textbook and then input it into the computer. You can only do it slowly. The following week was the calmest period since Chang Haonan was reborn. In addition to the daily routine communication with Zhejiang University about the feasibility of replicating a stratospheric airship in the zero wind layer to provide information relay services, the only thing worth mentioning is that Chang Haonan finally put his long-cherished project into practice. I applied for a mobile phone number. ?At this time, you cannot open a card at any time like you did later. Instead, you have to register your personal information and pay a deposit, and then wait for about a week before you can get the phone card and mobile phone. Ericsson GH337, 1,700 yuan. ?The cheapest style chosen by Chang Haonan. It looks like a walkie-talkie, and the screen is too small. When this model first entered China in 1994, the price was close to 10,000 yuan. However, the development of mobile phones in this era was almost as fast as the Internet. With the advent of models with a series of new functions such as color screens, flip keyboards, polyphonic ringtones, etc. , the price of the old model is almost the same as diving. But its enough. In the end, mobile phones these days are really just "mobile phones", unlike smartphones more than 20 years later, which have almost become a personal information terminal. Therefore, as long as the network standard does not become outdated, there is no need to upgrade to a new model. necessary. ?Although Ericsson GH337 is old, it is the first GSM mobile phone to enter China, so Chang Haonan can choose an 11-digit number starting with 139 instead of the 7-digit number of the analog network. It also means that the number can be used forever if he wants to. This is undoubtedly good news for Chang Haonan who is too lazy to bother. ??When he walked out of the telecommunications business hall for the second time with the phone card installed, his inner emotions were quite complicated. On the one hand, this made him feel as if he was closer to the era before his rebirth. On the other hand, it also means having to bear the side effects of mobile phones - Jobs are coming to your door faster. It can be said that it was not what Chang Haonan expected. Apart from the tentative dialing, the first phone call that actually came to ask him about something came from Du Yishan. It was when Chang Haonan was having lunch at home one day. The other party said that the equipment debugging work of the high-performance computing center is nearing completion. According to the school''s arrangement, when it is officially opened in three days, he, the acting director, needs to personally run a program. ?The logic is similar to that of a supervisor shoveling the first shovelful of soil when a construction project breaks ground. Anyway, its just a good start. It doesnt necessarily need to be complicated, but in short, there must be no bugs. In short, it must be prepared in advance. (End of this chapter) Chapter 295 Am I a godfather? Chapter 295 Am I a godfather? Chang Haonan has been struggling for a while about what program to run on China''s first university-operated supercomputer. What he is best at is of course programming to calculate numerical solutions to partial differential equations, which is also the essence of all numerical analysis and computational simulation processes. ??But on the one hand, this kind of procedure is generally complicated. On the other hand, it is impossible for all those attending the ceremony to be industry insiders, and outsiders will certainly not be able to understand it, and they may not think that this kind of thing that will output a bunch of dry parameters in the end is very powerful. So he finally decided to change his mind. The most simple way is to run a helloworld. This is the first demonstration program in the book "C Programming Language", which is extremely classic and can be called the programming bible. Affected by this, almost all programming teaching around the world will use the output helloworld as a starting point for students to get started. ? Any programmer may not use C language, or may not like C language, but he has basically written a program with similar functions. ?However, in 1997, computers had not yet become a required course for college students across the country, so basically only experts knew the ins and outs of it. Even if this program is written in assembly language, it only takes about twenty lines, and high-level languages ????such as Java and Python (Note 1) can be completed in one line. Succinct and powerful. Experts will only smile knowingly when they know you are making fun of it, and will not dislike the simplicity of this program. However, although laymen do not understand, but just from the perspective of watching the fun, they will also feel that this is very consistent with China''s current development theme towards the world. . Perfect. Chang Haonan, who finalized the plan, quickly wrote a simple unveiling ceremony process based on his previous life experience and handed it to Tang Lintian ?Although Du Yishan has been dealing with Chang Haonan on this matter, if it really comes down to the administrative work of providing money and people, it would be best to have Dean Tang handle it. As for the details after the general framework is in place, Chang Haonan does not need to worry about it. ?Although it is not yet possible for the school to assign him a secretary in a big way, there will always be someone responsible for these things. According to the original plan, in the next three days, Chang Haonan only needs to prepare a slightly more formal suit (paid for by the school, of course), and then read the script of his speech on the day of the unveiling, so as not to get stuck on the spot or read the wrong words into the script. . As for the rest of the time, I mainly work with Fang Zhen to optimize the design of the stratospheric airship that is being developed with Zhejiang University. Of course, Chang Haonan no longer needs to do this kind of work himself. He only needs to give guidance on the key points of some algorithms. ?Although it has only been a short year since they were reborn, many people''s abilities and destinies have already been changed by Chang Haonan. Just like Fang Zhen, at this time last year he couldn''t even figure out the dipole grid analysis of a beam-type wing. But this year, although it seems that Chang Haonan and Yao Mengna are falling further and further behind, they have actually already fallen behind. He has become one of the top experts in aerodynamic analysis and optimization. Otherwise, Zhejiang University would not have crossed half of China to find him as an airship. ?This feeling, for a person like him who has experienced two lives, is simply not a good feeling. At five o''clock that night. Brother, please be busy first, Im going home. Chang Haonan looked at the wall clock on the wall and confirmed that it was time to get off work. He quickly closed the lid of his laptop, stood up, put on his clothes and prepared to leave. ??? Taking advantage of his free time these days, he had to experience what it was like to work a nine-to-five job that he had never experienced in his entire life. "good" Fang Zhen just raised his head and said a word. Before he could say a few words, he heard a knock on the office door. Then a timid voice sounded outside. Hello, is Teacher Chang Haonan here? This sentence stunned Fang Zhen, Chang Haonan and Xia Tian in the office. Then they all looked at the door. ?There were three people standing there, two men and one woman. ?Judging from his age, he is similar to Chang Haonan and Xia Tian, ??but much younger than Fang Zhen. They should all be students. I am Chang Haonan, but I am not a teacher yet. Although he was a little curious about the purpose of the visitor, he still put his clothes on the back of the seat again. In any case, there is basically no hope of getting off work on time. You are looking for me... ?Perhaps it was Chang Haonan''s answer and his too young appearance that made the three visitors a little at a loss. After about ten seconds, the girl who first knocked on the door opened her mouth to explain again: "Ah... we are students from the Department of Computer Science and Technology of Yenching University. We are here to ask you for advice on the universal application of differential evolution algorithm (DE) in constrained optimization problems. This is the responsibility of the three of us. Student ID card, and this, is the situation statement written by Teacher Yang Fuqing for us, stamped with the college seal... The three of them took out a lot of documents and information at once. ??He even caught a glimpse of two panda cigarettes, which were very popular in this era, in one of the people''s bags. It is estimated that it was originally intended to be given as a gift to "Professor Chang Haonan", but his real age is obviously slightly different from the expectations of the other three... Chang Haonan didn''t care much about this. On the contrary, he didn''t know how to deal with it if the other party really wanted to show it, so he pretended not to see it and directly took the other party''s ID and the letter explaining the situation. Yan Da It must be admitted that Beijing Airlines and Yanda are not schools at the same level. The former is of course very important in the aviation industry system, but no matter which country it is in, industry and academia are two separate circles, and the former is generally at the lower end of the contempt chain. So Chang Haonan was a little happy to meet three Yan university students who came here to ask for advice. Because he suddenly had a bold idea. Since the fate of many people and projects has been changed because of him. ?What about schools? Now there is only one year left until May 1998... Who said that the C9 League cannot become the C10 League? Of the three, the girl who keeps talking is called Lin Zhi, and the other two boys, one tall and one short, are a bit taciturn. The tall one is named Song Tingyu, and the one who is slightly shorter and fatter is called Jian Feiang, who looks a bit like Wu Yifan. They came here because they wanted to participate in this years International Competition on Evolutionary Algorithms (ICEO) in Indianapolis. ?Yang Fuqing, who wrote this note, should be an academician with qualifications close to that of Du Yishan, but neither she nor the three students specifically mentioned this, probably because they were afraid of being misunderstood as using their reputation as an academician to pressure others. "This competition...if it were overseas, I would definitely not be able to attend..." Although it was not stated explicitly in the letter, it can still be seen from the meaning between the lines that Yang Fuqing seemed to want to directly ask Chang Haonan to be their instructor. Normally speaking, this kind of job of leading a team to compete abroad is definitely a good job. Not only can you go abroad for a tour at public expense, but if the students you lead get good grades, it will also be a huge bonus for the teacher. But Chang Haonan''s situation is special after all. Whether it is from the perspective of confidentiality or safety, the organization will not let someone like him go abroad casually, and he himself is not worried about the situation on the other side of the ocean. Well... Teacher Yang said before coming here that if you have something to do and cant leave, you can just use the name of your instructor. Judging from Lin Zhis reaction, Chang Haonan is 80% sure that this was her own temporary thought. However, in most cases, such competitions do only require the presence of instructors, but not all of them. Well, lets talk about your specific problems. ?Chang Haonan has completely given up on the idea of ??going home from get off work. "That''s right, last May, that is, before you published that paper, DE had already achieved good results in the first ICEO held in Nagoya. There were five test functions at that time, namely the ball model f (x)=(i=1.n)(xi-1)^2, xi[-5, 5], classical Griwank function (Note 2)..." When talking about professional topics, the short Suga Feian changed his slightly dull look before and stepped forward to fluently introduce to Chang Haonan the situation of the first competition last year and the expected results of the second competition this year. Involved directions, etc. In the three bags of information they brought, there was a box of floppy disks containing the complete algorithms submitted by all the contestants last year. "Um" ?Chang Haonan inserted a floppy disk into the floppy drive. ??While reading the tape, he casually asked the question he was curious about just now: Why do you think of coming to me? And the proposer of the DE algorithm should be at Berkeley. Are you so confident in defeating their local students? ??Two men and one woman looked at each other, with strange smiles on their faces. "often" Just call me Chang Gong or Dr. Chang. "Dr. Chang, although Professor Stern and Professor Price are indeed the fathers of the DE algorithm, after all, they are only preparing to determine the coefficients of the Chebyshev polynomial. It is you and Researcher Xu who really popularized this algorithm. , so now in the industry, especially in the circle where we are preparing to participate in the second ICEO, you are generally called the godfather and godmother of the DE algorithm..." ?This answer almost made Chang Haonan stop. Hey guys, have I become a godfather? 1: These languages ??are called high-level languages ??just by convention, and it does not mean that they are more powerful than assembly language and machine language. As the saying goes: Having studied real variable functions for ten times, I feel disheartened by functional analysis. The random process passes randomly, and assembly language cannot compile it. It can be seen that assembly language is still difficult to learn 2: Original test questions: (End of this chapter) Chapter 296 Combining theory with practice Chapter 296 Combining theory with practice Of course, Chang Haonan also knew that the godfather mentioned by the other three people did not actually mean the same thing as the godfather in the mafia movie. Rather, it refers to a person who, in a religious context, is given a Christian name when he is baptized and promises to undertake his or her religious education. The general meaning is that although the two Berkeley professors gave life to the DE algorithm, Chang Haonan and Xu Yang were the ones who gave the DE algorithm the soul. Considering that very few Chinese people would speak in this way, what the other party said should still have a certain degree of credibility. For Chang Haonan, it is also a good thing to make a name for himself in the fields of engineering theory or algorithms that have nothing to do with confidential projects, which is equivalent to giving him an excellent disguise. Truth and falsehood are the secret of confidentiality. Otherwise, as a person who has done nothing on the surface, your status will jump up like a rocket. It is not difficult for someone with a little bit of brains to figure out the reason. ?At this time, the files in the floppy disk are also read out. ?Chang Haonan opened one of them. "This is the algorithm from Princeton University that won the first place in last year''s ICEO competition. The file below is from Kyoto University that won the second place. Since Nagoya University did not participate, they were considered last year''s host. These two schools will also participate in the second place this year. It should be our main competitor. Lin Zhi introduced it in a timely manner from the side. First place...let me take a look. ?Chang Haonan opened the first program file inside. "The optimization efficiency of these two algorithms is indeed very high. Last month we used the optimized DE algorithm to improve the efficiency of these five test functions. Although it has been greatly improved compared to last year''s third place result, I still cant compete with them, so I thought Id trouble you to see if theres any further way. Suga Feiong said and picked out another one from the floppy disk box: This is the result of our design. Dont be in a hurry, lets take a look at theirs first. Being able to be so much faster than DE means they are quite capable. Actually, Chang Haonan was a little surprised when he heard that the differential evolution algorithm only came in third place. Even before he made improvements and optimizations, the efficiency of DE should in most cases exceed the simulated annealing algorithm that was more popular in this era and the genetic algorithm that was about to become popular in the original timeline. Considering that the test functions we just looked at are all normal, there is nothing weird about them. Getting third place is either because the contestant is not good at studying, or there are some other reasons ??If there was such a powerful algorithm, it would have become famous in the academic world. Because the competition time was limited and the test function was not complicated, Chang Haonan finished reading it in no time. Of course, normally after reading it, you have to analyze and test the key parts, but with his current theoretical level, which is close to LV3, he can save the previous step to a large extent. This thing Chang Haonan frowned and first tried to run the Michalewiczs function in the test question. It is a relatively uncommon kind of benchmark function, at least in this era, because it is a single-objective optimization function that contains several local minima and planar regions, in which all z values ??are almost equal. For absolute Most algorithms are not friendly. The results were very good indeed. "We have tried several methods, but we can''t achieve their high efficiency. You can run the fifth test function again, and the results are even more exaggerated. Therefore, in the past year, some people have always suspected that these two groups were responsible for the test. Because of this, the organizers only released all the relevant documents under pressure about last week. Song Tingyu, who had not spoken just now, said in a hoarse voice. This also explains why they insist on choosing DE even though they know that there are more efficient algorithms. Its not because they are admirers of the DE algorithm, but because they have always thought that others were cheating. ?But no matter what, their choice was correct. Because Chang Haonan had already understood the little tricks played by the other party. Comparing suspected cheating with real cheating, after all, it is still a bit less interesting. No need, I probably understand what they did. ??He said, opening the second-ranked file and browsing it faster than before. Huh? ???? Lin Zhis surprised voice was just halfway out, and she quickly covered her mouth. They originally planned to come over today and hand the things over to Chang Haonan, and then go back and wait for news for a few days. Just now I was ready to take out the gifts and leave. The result was announced on the spot? As long as we change the testing method, these two algorithms will be revealed. ?Chang Haonan moved his body and began to build a new mathematical model. ?Minf(r,n)=-(i=1,m)R(ni) s.t.g1(r,n),g2(r,n),g3(r,n) ? 0ri1niZ+1im Although they had no background and only had a few broad mathematical formulas, the three of them were worthy of being selected by Yan to participate in international competitions. One of them, Feian Suga, quickly saw the practical problems corresponding to this model: Should this be a reliability redundancy calculation for a series system? Chang Haonan has not even written the notes on the physical quantities represented by each symbol, so it can still be seen. On the one hand, it shows that his mind is really moving quickly, and on the other hand, it also shows that he must have done a lot of homework in the past. Physics is not pure mathematics. No matter how smart a person is, if he encounters a physics problem that he has never been exposed to before, he will not be able to see through it at a glance. Yes, but dont underestimate this simple series system. Since they already understood it, Chang Haonan was happy to save himself the trouble of explanation. After running the first algorithm to start optimizing, he nodded and replied: "There are many complex equipment, such as the over-protection system of gas turbines or internal combustion engines, which correspond to this model. How to squeeze out the potential of the equipment as much as possible and compress redundancy without affecting the safety of the system has become the optimization goal of engineers. " In the past, this matter could only be accomplished with experience. Therefore, giants such as Siemens, Mitsubishi Heavy Industries, General Electric, and Ansaldo entered the industry earlier and accumulated richer data and experience. Even with the same skills, With technologically advanced hardware equipment, their unit performance indicators are also much better, which brings them more customers, which in turn provides them with more feedback data, forming a virtuous cycle. Therefore, under this model, later No one can ever surpass them." "But with the efforts of algorithm engineers like us, this kind of control problems have gradually begun to escape the realm of pure experience in recent years. We can get some theoretical guidance to speed up the development efficiency of control systems, which also gives us those who have not caught up. It is possible for countries in the Industrial Revolution to catch up from behind. Actually, what Chang Haonan said is exactly what he has been doing in the past year Not only through his forward-looking vision, but also through technical means to improve scientific research efficiency, so that limited funds can play a greater role than others. After hearing these words, the three people next to him were startled at the same time, and then showed different expressions, but they were all obviously thinking. In the late 1990s, the computer major in China was prosperous for a few years, but its foundation was shaky. During this period, the popularity of the accounting major was quite blind. The real first-mover bonus period was already in the early 1990s. It was in the past, and the computer industry hadn''t really developed yet. As a result, these students graduated just in time for the collapse of the Internet bubble, and their encounter was almost similar to the group of people who studied biology at the beginning of the 21st century who listened to the nonsense that "the 21st century is the century of biology". ?Except for a few big guys, most people will not be able to survive the industry explosion in more than ten years, and have already changed careers. Entering school under this background, even undergraduates from a school like Yan University may not actually know the use of what they learn. Many people are simply used to studying hard, or they pass the exam without studying hard at all. With very high scores, I chose the major with the highest score. After all, even in the information age more than 20 years later, college entrance examination candidates understanding of university majors is still low enough for college entrance examination registration and career planning to become an independent industry, let alone now. The three of them were actually just sophomore undergraduates, and had not seriously considered issues such as the use of what they had learned before. ?Now that I heard Chang Haonan say this, I really felt something for the first time. ?While a few people were talking, the optimization algorithm running on the computer came to an end. ?But unlike the previous times, it doesnt really output anything. There is no need to continue. ?Chang Haonan stopped the program and opened the log file, and quickly found the crux: There is a problem with the method of handling constraints, so it cannot converge, and it will not output a valid solution no matter how hard it is run. Three faces of shock.jpg "You see, although these two functions cannot be regarded as cheating, they actually take advantage of the competition system. The first-place algorithm is only suitable for componentized competition verification functions. It cannot be called a general optimization algorithm at all. It is almost incapable of solving complex practical problems. The ability of the second place is slightly better, but it needs to calculate the Latin square, which is not suitable for situations with too many parameters and has great limitations. In other words, the top two are test-oriented algorithms that are completely designed for competitions. " Chang Haonan analyzed: Of course, from the perspective of competition, general algorithms are not more noble than them, but personally, I still hope that the development of algorithmic science can be closer to the actual application level, and... When he said this, he hesitated for a moment, because the following content was indeed entirely his inference, but he finally said it: And based on your description, I estimate that this competition may add some restrictions on this behavior, such as adding a non-standard model or function to the test process. In short, Chang Haonan became the last person to leave the laboratory that night. (End of this chapter) Chapter 298 Multiphysics simulation Chapter 298 Multiphysics Simulation ?Thinking of this, Chang Haonan suddenly felt that the name Wei Yongming seemed a bit familiar. He was quite sure that this was the first time he had contact with Qinghua University since his rebirth. Then it should be someone who has heard it in the previous life. "Casting process testing requires a lot of financial resources and time, and as you know, these two things are what we lack most now. At present, the United States, Japan and Russia, the pioneer countries, have been researching titanium-aluminum alloys for many years. We rely on traditional means to It is difficult to catch up with them in a short time, but the decoupling method we are currently using has basically reached a dead end, and the project team has great differences in the subsequent route selection. " After briefly introducing the current situation and the difficulties faced, Wei Yongming asked Chang Haonan with expectant eyes: So, I am here to ask you this. With the current technical means, is it possible to simulate the casting process on a computer through numerical calculations like fluid mechanics or structural mechanics? " Although he is only a master''s student, his summary ideas are clear and organized. He is definitely deeply involved in the entire project, rather than someone who simply started. ?His question even stumped Chang Haonan for a while. Actually, this is not the first time that the latter has faced similar problems. Yan Zhongcheng mentioned before at the celebration party of Sanmen that Liming Factory plans to use 1Cr16Ni2MoN martensitic stainless steel to produce aeroderivative gas turbine blades through hot forging, but there is a gap between the deformation, heat transfer and organizational evolution of the material. The interaction greatly limits the application of the finite element method in hot forging processes that need to fully consider the influence of microstructure. In the discussion about the Star of the Sea radar some time ago, Guo Lin also mentioned that a big problem faced by 14 is that the large-diameter active phased array antenna on the ship is exposed to sunlight, wind load, salt spray erosion, etc. Under the influence of environmental loads, the antenna array will inevitably undergo structural deformation, deteriorating the antenna radiation performance, and requiring more power to be consumed to achieve the same transmit power. However, increasing the input power will bring greater thermal power consumption. In addition to wasting the already precious electric energy on the warship, temperature-sensitive T/R components and array power supplies will also cause performance temperature drift, resulting in T The excitation current output by the /R component changes, further deteriorating the radiation performance of the antenna. ?Although these issues may seem unrelated and involve completely different fields, the dilemmas faced by everyone are the same - Compared with aircraft aerodynamics and structural design, which basically only need to consider the influence of mechanics, they are designed to involve more physical fields, and they have a very close impact on each other. For the currently popular calculation and analysis methods, there is no way to simultaneously Calculate and optimize so many physical quantities. In traditional calculation methods, when nonlinear conditions are introduced, the calculation needs to iterate among multiple sets of partial differential equations many times in order to obtain convergence. However, casting problems involve material nonlinearity, geometric nonlinearity, and boundary nonlinearity at the same time. Iteration The extremely low efficiency means that the calculation time needs to be measured in months or even years, and there is a high probability that the final result will be divergent. ??And if these physical fields are separated and calculated separately, the coupling effect is ignored, causing the simulation results to be completely unable to fit the actual situation. As far as existing technical means are concerned, there is no solution to this problem. So what Chang Haonan has always wanted to do during this period is to write a new, comprehensive multi-physics simulation modeling software. But this requires high theoretical support, at least beyond the current era. This is also the reason why he urgently wants to upgrade the system''s theoretical ability level to LV3. After taking some time to summarize the language, Chang Haonan gave his answer in a cautiously optimistic manner: "Traditional decoupling methods, including the recently developed indirect coupling methods, can only deal with weak coupling problems between multiple physics fields. Strong coupling problems cannot be directly decoupled, so it is meaningful to continue to try in this direction. Its really not big. "For example, the casting process you just mentioned involves a fluid-solid coupling. Only under the assumption of small deformation, this is a weak coupling problem, because the flow channel will affect the fluid, but in turn the fluid will affect the flow channel. The effect can be ignored, and such problems can be solved by decoupling. But the casting process doesnt fit this hypothesis Wei Yongming''s eyes dimmed slightly. Obviously, he hoped to continue using numerical calculations. Because this is the only possible way for China to achieve technological leap forward. Yes, but its not completely hopeless. Chang Haonan nodded: I am developing a fully coupled solution method. If it goes well, then... ?If multiphysics simulation can be summarized into a mathematical problem, it is actually solving a system of partial differential equations with a high degree of nonlinearity. However, since engineering only requires numerical solutions and does not require analytical solutions, the overall difficulty should be relatively good. ?In addition, in the original timeline, FEMlab was renamed COMSOL Multiphysics in 2005 and officially entered the field of multi-physics simulation. The time span is 8-10 years, and LV3 level theory should be enough to cope with it. What''s more, things like engineering software always need to collect data for version iteration. It is impossible to expect that the first release will be perfect. Even if only the most basic force-thermal coupling can be achieved at this stage, for almost all industries, It can be called a huge help. If everything goes well, there may be some phased results in the second half of the year. He still did not choose to open the champagne at halftime. Wei Yongming, who was a little disappointed just now, suddenly became excited: So, can we continue to use numerical analysis to shorten the research cycle? ??If someone else drew such a pie, he probably wouldn''t even look at it seriously. But who has the final say? Before coming on this trip, Wei Yongming had certainly done some homework. ? Judging from past experience, the phased results mentioned by the general counsel are generally not phased. It is the kind that can be directly solved by putting it in a topic. Of course, or rather, this is the ultimate goal of my research on algorithms and control theory. ?Chang Haonan smiled and nodded. Life sometimes has some wonderful symmetries. For example, he just told three students from Yenching University a few days ago about something similar. Now I said it again to a student of Qinghua University. If you want to do your job well, you must first sharpen your tools. Although waiting for about half a year may cost you some time, it is worth it in exchange for higher efficiency in the end. ? As a scientific research dog doing projects in his previous life, Chang Haonan chose the second half of this year as the time node, naturally taking into account the actual situation faced by Wei Yongming and others - Scientific research projects must submit phased summary reports at the end of the year. ??If he supports this software until next year, the project team is likely to choose to return to the traditional route under schedule pressure to ensure that the report at least has content that is easy to write. ?Experiments are of course necessary, but the cost of experiments lacking theoretical guidance is indeed too high for China today. (End of this chapter) Chapter 299 Won an award Chapter 299 Winning the Award ?But this time, Chang Haonan was obviously a little worried. ?After hearing his words, Wei Yongming almost immediately thought about what to do next: If a breakthrough can be made in numerical calculation methods within one to two years, I will have a way to convince the project team to continue in this direction. "oh?" Chang Haonan became interested when he heard this: In this project of yours, are there other parts that have nothing to do with the casting process? Being able to make such a statement, it is obvious that he still has enough results in hand to cope with the mid-term review. And it can be done without Chang Haonan''s software. ?Of course this is also Party Bs usual routine - The progress cannot be shaken out all at once, it must be kept in a steady flow, and a part of it should be held in the hand just in case. Just like writing, you cannot send out all the manuscripts at once. You need to keep some in hand in case of glitches or emergencies. Otherwise, like some authors, you have to take out your mobile phone to code words between meetings to prevent interruptions. . "Well... it can''t be considered irrelevant. We are planning to build an embedded operating system for the equipment used in these two projects that can be fully operated and maintained independently. When we go back, we can adjust the priorities and put this matter at the front. It will probably take at least a year. Wei Yongmings words are astonishing. If he can really accomplish this, the influence will be at the same level as the new software Chang Haonan just mentioned: "I have inspected many CNC machine tools used by domestic manufacturers in the past two years, and found that many foreign industrial control software locks our permissions at the system level. Even if we do not consider after-sales issues, it is difficult to unlock it. In the contract for purchasing the equipment, They are all overlord clauses. Many problems that can be solved by just a technician must be paid a lot of money to fly their engineers from abroad to deal with them, which costs thousands or tens of thousands of dollars every time. I dont think this can continue. "In the past two years, due to the release of the Chinese version of Windows 95, we have lost a battle in the desktop operating system. Although the embedded operating system is not eye-catching, it actually has a greater impact on production and life. We must not treat it as such anymore. This thing has been handed over to others. When talking about the latter part, Wei Yongming''s tone was filled with sadness. Autonomous embedded operating system...based on linux? Chang Haonan can only understand the code aspect at best, and cannot understand anything that is too profound. However, judging from the subsequent historical development, Linux is definitely a good thing. By the 2020s, almost all embedded systems have been unified into There are two routes: win and linux. Speaking of the fields he is most familiar with, Wei Yongming suddenly became energetic again: "Not entirely. The current Linux as an embedded system has many flaws. The most insurmountable thing is that some industrial control equipment does not have a memory management unit installed, and Linux cannot run on these devices. In addition, some have MIPS or ARM architecture processing installed. The adaptability of computer equipment to Linux is not good, so our plan is to rely on the upcoming version 2.0 of Linux as the kernel source file to design a new system specifically for the micro-control field. " When he said this, Chang Haonan suddenly remembered why he was so familiar with the other person''s name. ? Wei Yongming, the developer of MiniGUI, Chinas first embedded operating system that supports graphical user interface. Many industrial control equipment, medical instruments and ToB terminals use this system. In his previous life, despite the lack of external support, he still completed the initial development of MiniGUI in 1998. Now relying on the platform of Seiko Project, it is obvious that he has great potential. Im not an expert in operating systems. ??Chang Haonan naturally couldn''t say what he was thinking, and he would become a great dance master. On the other hand, he also hoped to keep Wei Yongming within the framework of the Jinggong Plan instead of letting him go out to fight alone: "But if your new system can gain user approval in the two directions of micro-EDM and investment casting, then I am willing to incorporate it into the framework of the Seiko plan as a whole, so that the following plans will be involved Terminal equipment can choose to use your new system to circumvent the discriminatory policies of foreign manufacturers and possible sanctions. For an operating system, the importance of software ecology is at least no less important than the system itself. Take the desktop system for example. Before Chang Haonan was reborn, all the computers in their organization had been replaced by the domestically produced KylinOS from Windows. However, at the very beginning, a large number of software had not been adapted to Linux, so additional software was required. Bring a personal Windows computer to work properly. Chang Haonan has no influence on desktop matters now, but in the late 1990s, the domestic industrial control software industry was still in its infancy. If the Seiko Plan can guide top users to choose, or at least be compatible with domestic systems, it will be a good idea for the future. development will be a big boost. Even the future hardware industry can do this! If this is really the case, I would like to thank you very much, Mr. Chang. ?Chang Haonans commitment is undoubtedly a shot in the arm for Wei Yongming. In fact, since he started paying attention to free software and Linux operating systems a few years ago, he has always had the idea of ??designing a new system based on them. However, he suffered from insufficient conditions and made slow progress until he participated in this project at the beginning of this year. Only then was a platform high enough to do this was obtained. In less than three months, he completed more content than the previous two years combined. This is just the support provided by two projects. If the entire Seiko Plan... ??Wei Yongming even dared not think about the situation at that time. The conversation with Wei Yongming once again strengthened Chang Haonan''s sense of urgency to promote multi-physics simulation research. The requirements for production and manufacturing capabilities of the August 3rd Project that he participated in before were not much higher than those of the JH-7 already in service and the old J-8 in the past. In other words, the main shortcoming of the wooden barrel was the design, so it could In a matter of months, a complete transformation was achieved very quickly. As the third-generation fighter jets, Project 10 and Project 11 are completely different. Their overall leading performance relies not only on advances in aerodynamic design and avionics, but also puts forward requirements for aircraft production that are much higher than in the past. Even without considering the long-term shortcomings of aviation power, these two models in the previous generation still relied on a considerable part of aviation materials and key components imported from abroad for a long time, so it was difficult to roll out production until the 2010s. Now, with the help of Chang Haonan, their finalization time must be much earlier than the original timeline. If they are still unable to be mass-produced due to manufacturing problems, then the significance of this advance will be greatly reduced. I still need to encourage Professor Liu... On the way back to the office, Chang Haonan thought for a while and found that compiling the textbook was the fastest way to gain a lot of theoretical experience. So it is true that we still have to take advantage of Liu Hongbo. ?This made him speed up his pace. ?However, before he could find Liu Hongbo, he was stopped by Du Yishan and two men in black suits at the entrance of the corridor. Hello, Comrade Chang Haonan. ?One of them stepped forward and took the initiative to shake hands with Chang Haonan. ???If Du Yishan wasn''t right next to him, and he was using honorifics when speaking, Chang Haonan would have thought that he had done something outrageous and was about to be punished just by looking at this posture... ?However, the development direction of things was completely opposite to what he thought... We are here to send you the award certificate and the invitation letter to the award ceremony. You need to sign to confirm receipt. Award certificate? What award? Chang Haonan looked at Du Yishan with a mysterious smile in the distance and asked in confusion - How come I dont know that I won the award? (End of this chapter) Chapter 300 Chinese Youth May 4th Award Chapter 300 Chinese Youth May 4th Medal (two in one) Chang Haonan briefly reviewed and found that almost half a month had passed since Du Yishan called him back from Donglai, but no one had clearly told him what the "ceremony" that he was asked to participate in was. . After working on it for a long time, it turned out to be an awards ceremony. It has been almost a year since his rebirth. Although he has made a lot of achievements and won a lot of honors from the aviation industry system and even the military, it is only the first time that such a serious ceremony needs to be held. twice. The first time was to celebrate the bat hunt. It is a coincidence that Chang Haonan was kept in the dark at that time. It was not until Ding Gaoheng was pulled to the scene that he learned the whole story. It seems to have become a tradition. Neither the two staff members nor Du Yishan answered Chang Haonan''s surprised question. Instead, they took him to Tang Lintian''s office and solemnly handed him a beautifully framed red envelope. Obviously, this is to leave the surprise of the lottery to the winner himself. There was no name of the award written on the surface of the envelope, but before opening it, Chang Haonan noticed that the organization that issued the envelope was printed in two lines of small characters in the lower right corner - Communist Youth League ZY and National Youth Federation. ?His hands shook involuntarily. In the eyes of many people, these two names may not have enough presence in daily life. But within the system, especially in government agencies and scientific research units, he still has quite a status. An award that allows these two companies to jointly issue... ?Chang Haonan already had some guesses in his mind. In the 1990s, envelopes did not have the quick-release design that is common in later generations, so he picked up a letter opener from Tang Lintian''s pen holder and quickly cut open the envelope. Inside is a red-covered certificate and an invitation letter. The certificate has the emblem of the Communist Youth League printed on it, as well as two lines of thin gilded fonts: Chinese Youth May 4th Medal Certificate The content in the certificate is concise and to the point. Awarded to Comrade Chang Haonan the Chinese Youth May 4th Medal There is no need for any other explanation, and there is no such clich as this certificate is issued as an encouragement. Not needed at all. Fifteen words are enough to reflect the value of this certificate. ??Even if we only look at the level of the issuing organization, the first-class "Bat Hunting Operation" medal he received before is not inferior. ??But this is a serious medal after all, and it is the kind that can be said openly. At this moment, the other four people in the office heard Chang Haonan''s suddenly heavier breathing. ?No one can remain completely calm at such a time. Dont talk about being a human being in two lifetimes. In his last life, he lived for more than forty years, and the highest honor he received was just being an outstanding researcher at the research institute level. The bosses are indifferent to honors, mostly because honors that are important to ordinary people are not worth mentioning to them. Why does the Nobel Prize have to be notified to me only a few minutes before the draw? ?One of the important reasons is to prevent the winner from showing off after knowing it in advance and destroying the authenticity of the Nobel Prize. In fact, before today, Chang Haonan did estimate that he might get some awards for his contribution to many projects last year, but at best he would think about it within the aviation industry system, and at most the Commission of Science, Technology and Industry for National Defense system. It is indeed a bit of an unexpected surprise to rush directly to the specification of the May 4th Medal. You should know that 1997 was the first time this award was awarded. ??Although there is no rule that the first winner is more noble than the subsequent ones, from a historical perspective, the name of the first winner is still more valuable. ?Compared to the huge number of 20 or 30 people later, the number of winners in previous years was usually only five or six. ?However, Chang Haonan has rich life experience after all. After the initial surprise and excitement, he quickly took two deep breaths to calm himself down a little, and then raised his head. Thank you both for coming here. I remember just now that you said there was something I needed to sign? "That''s right, there is a receipt at the back of the invitation letter. Just sign it and give it to us after confirming whether you can attend. If you attend, it is best to arrive at the venue about two hours in advance. There will be staff to guide you to the backstage. Get in position." "no problem." Chang Haonan turned the invitation letter to the end, checked the "confirm participation" option, and then signed his name. Just kidding, Du Yishan called him back specifically for this matter, how could there be any reason not to participate. After signing, the two staff members who came to announce the good news were quickly sent away. ?Chang Haonan put the certificate and invitation letter back into the envelope and carefully put them into his bag. How about it? I didnt owe you anything by calling you back this time, right? ? Judging from the demeanor of old man Du Yishan, he obviously knew about it early on, but he just wanted to leave a surprise for Chang Haonan, so he didn''t explain it. Tang Lintian probably subconsciously felt that Du Yishan must have said it before, so he played riddles with the latter for a long time. ?In this way, it is not difficult to understand why Chang Haonan behaved like that when he saw Tang Lintian for the first time after returning. The first May Fourth Medal did not have a collective award. Hence, the unit where the award-winning individual belongs is also an important focus. ??If Chang Haonan can say a few more good words for the school when delivering his acceptance speech, even if it does not bring any direct benefits, at least it can leave a good first impression on all participants. I really didnt expect it before... When I saw those two people in black clothes at the entrance of the corridor just now, I thought I had made some mistake... I was shocked. Chang Haonan zipped up his schoolbag and touched his chest, which was still beating fast, and replied. ?Although there was a bit of fright in the process, I have to say that the more frights there are, the better. Du Yishan showed a smile of success and patted Chang Haonan on the shoulder: "Okay, I''ll prepare my acceptance speech after I get back. But what I said above is that the commendation conference is still based on showing the vitality of you young people, so there is no need to be too serious. At this level...just control yourself. " Although that is said, according to the meeting schedule, the total time left for their winners to speak is only 20 minutes, which translates into less than 4 minutes for each person. In fact, there is not much room for performance. It was not until after sending Chang Haonan away that Du Yishan noticed Tang Lintian sitting behind the desk next to him with a frown on his face. Old Tang? It wasnt until his name was called several times that the latter finally reacted. What are you thinking about? I see your eyebrows are all squeezed together. While talking, Du Yishan walked to a filing cabinet nearby, fumbled for a while, and took out a silver jar from an inconspicuous little grid in the lower right corner. ??It was the precious tea that Tang Lintian brought out to treat Chang Haonan that day. Im thinking, if this trend continues, when Dr. Xiao Chang graduates in two years, what conditions will we have to offer to keep people... Well...theres nothing I can do about it. ?Du Yishan grabbed some tea leaves into two glasses, then picked up the thermos and started making tea. At the same time, he admitted very simply that there was nothing he could do: "But as far as Xiao Chang''s situation is concerned, I still suggest that you expand your structure a little bit. His value is not limited to our school at all. If you are willing to stay, that would be better. If there is a better platform or place to go, , then I think we should also encourage and support. Of course I know this, but...well, I wonder if you have heard some rumors that the higher authorities are planning to build a number of world-leading first-class universities around the turn of the century? Du Yishan was stunned for a moment, then shook his head: "This is the first time I heard about it. Isn''t there already a 211 project?" As a senior academician, he does not pay special attention to school administration matters, so naturally he has not learned about this matter that has not been announced yet. "It''s different. The standards this time are much higher. According to relatively reliable reports, the current leading schools are Qinghua University, Yanda University, Fudan University, Jiaotong University and Zhejiang University. In the future, four to five more schools may be added as the first batch of schools. , our Beijing Airlines is still a little behind them in terms of strength and influence, judging from the current situation, but if Xiao Chang can be sure to stay at the school to teach..." "etc" ?Du Yishan, who was listening next to him, interrupted Tang Lintians explanation: Forget everything else, Zhejiang University... we dont seem to be far behind them, right? Arent they all science and engineering universities? Its pretty much the same now. ?Tang Lintian shook his head helplessly: But their application for the merger of the four universities has been approved. Next year, or the year after at the latest, you will be able to see the old Zhejiang University ?Du Yishan was speechless. As a person born in the 1920s, he certainly knows the ins and outs of this. In 1952, Zhejiang University was split into five in an extremely tragic split. In addition to being divided into four single-discipline universities, it also transferred its trump card mathematics major to Fudan. The loss was second only to that of the school next door. Jinling University. ? And if the current four schools can really be merged into one, there will be no doubt about their competitiveness. ?But thinking of this, a strange idea suddenly came to Du Yishan''s mind: For this new first-class university project, Zhejiang University merged its three separate schools. ??As for Beijing Airlines, the first thing that came to mind was to keep Chang Haonan as a teacher... So in other words, the value of Xiao Chang is probably equal to Zhejiang Agricultural University, Zhejiang Medical University and Hangcheng University combined? That...I didnt say that. Tang Lintian said as he picked up the cup in front of him and took a sip of tea. This tastes It was then that he saw the tin can he thought he had hidden in Du Yishan''s hand, and his eyes widened instantly: Xiao Chang, did you even tell you where I put the tea? Dont blame others blindly. ?Du Yishan skillfully put the tea can back into place: "You wish the whole college knew about this place, but others don''t dare to take it out casually." The next night, a special car took Chang Haonan directly from Beijing Airlines to the Great Hall. In his last life, he had been here a lot. In fact, this place can be rented for money when there are no major events, and many halls are also open to the public. But this time being invited as a winner, the feeling is naturally completely different. ?The person in charge of receiving Chang Haonan is a female staff member named Hu Shanshan, who is about 30 years old, has short hair, and is very capable. After getting to know each other briefly, Hu Shanshan took Chang Haonan to the backstage of the auditorium with tens of thousands of people. The first thing I did after arriving was... make up. There is no way. In terms of the brightness of the stage spotlights, the effect of going on stage without makeup in videos and photos is similar to that of black people... Just when Chang Haonan was helplessly enduring the makeup artist applying some strange things to his face, Hu Shanshans voice came to his ears again: If you need it, we can type your acceptance speech onto a teleprompter, but you have to prepare the manuscript for us in advance. ?However, this was Chang Haonan''s first time facing such a situation. He didn''t think about the teleprompter at all, so he didn''t bring any manuscript with him. Forget it, its only six to seven hundred words. If you remember, the total time you arranged to speak is only three and a half minutes, so you cant say much. No wonder those two people asked him to arrive at the venue two hours early yesterday. The makeup process alone took almost an hour. ?Chang Haonan felt that his whole face had become a lot heavier, and he didn''t even dare to make big expressions. In the end, he slowly got used to wearing makeup under Hu Shanshan''s guidance. After getting the costumes ready and briefly familiarizing yourself with the process of the entire ceremony, its time to officially start. ?Two hosts, one male and one female, took the stage and announced the start of the award ceremony. For Chang Haonan, this is a childhood memory coming true. At the time of his rebirth, one of the two people had long since died, and the other had retired and only appeared once a year when he moved China. Since this is the first award, after introducing the leaders present, the host also emphasized the significance of establishing the Chinese Youth May 4th Medal. "The purpose of establishing the "China Youth May 4th Medal" series of awards is to establish and publicize advanced models of contemporary youth, guide and inspire young people to actively participate in reform, opening up and socialist modernization, and achieve new progress in the "three-step" development strategy of modernization , make contributions and grow healthily in the great practice of new victory..." Let me announce the list of winners of the first Chinese Youth May 4th Medal "The position of loving the army and practicing martial arts is sacred, and serving the motherland is extremely honorable. He gave up his status as a national cadre with a salary of several hundred yuan, and chose to join the army as a college graduate, becoming a soldier with a monthly allowance of only a few dozen yuan. Inheriting the tradition of the "Good Eighth Company" and continuing to write a new chapter for the glorious company, we invite you, the squad leader of the Eighth Company of the Special Guard Regiment of the Shanghai Military District of Jinling Military Region, to be promoted to the East!" "When she was young, she held up a sky for the children in the mountains. From a 4-and-a-half-year-old toddler to a 13-year-old boy, from life to study, she worked as both a teacher and a childcare worker... The second winner, Houhe, WFTJZ Autonomous County Substitute teacher at Xiangdingping Single Teaching Point, Song Fangrong! The third winner, Liu Xiao! The fourth winner, Li Bin! The drill bit gnaws at the rock. The work object is hard, and the work spirit must also be hard. This is the spirit of the people in Qingtang Oilfield, and also the spirit of Huaxia Petroleum people Qin Wengui, senior engineer of Qingtang Petroleum Administration Bureau! Since Chang Haonans surname has as many as 11 strokes, he is the last one to appear in most ceremonies that do not have a ranking order. He has gotten used to it, and he can better hear the deeds of the five people in front of him in the background. I have to say, they are all very impressive. ?For example, in front of him is Qin Wengui. ??When Chang Haonan first saw this white-haired man who looked about the same age as Du Yishan, he thought there was something wrong with his definition of "youth". It took the makeup artist a long time to dye his hair into a younger-looking black. ?As a result, after hearing his story, I found out that the other person was just 38 years old this year. ?This shows how difficult the working conditions of oilmen in the Gobi Desert are. After reading Qin Wenguis deeds, it was naturally Chang Haonans turn. He thought that he would be able to face all this calmly today as he was mentally prepared. ??But when the female hosts solemn voice sounded, Chang Haonan still couldnt help but pull the tie around his neck The rapid breathing made him feel a little hypoxic. Next, is the youngest of our winners this time. "Airplanes once changed the entire world, and he is determined to change airplanes. With his young hands and mind, he will equip Chinese aircraft with Chinese wings. One day, your name will be along with the tracks made by China. Flying all over the seven continents and four oceans..." Let us welcome the sixth winner, Chang Haonan, a student from Beijing University of Aeronautics and Astronautics! (End of this chapter) Chapter 301 Then say something (2-in-1) Chapter 301 Lets say something (two in one) ?Like previous times, the reasons for the award given to Chang Haonan are mainly focused on three aspects: MA-60 project, aircraft anti-icing system design and control theory research. The former is a project that he has always claimed to be involved in, while the results of the latter two have even had a lot of international influence. ?This way, there is no need to reveal his true contribution to the military industry, and the award will not become too obtrusive. Of course, being able to do this kind of work is mainly due to the fact that Chang Haonan has completed so much work this year that he can pick out some of them that do not need to be kept secret and still be able to hold up various honors. Although after the signing of the package agreement between China and Europe, he has been busy with work related to electronic warfare pods and electronic warfare aircraft, and has not been deeply involved in subsequent relatively complicated and mundane administrative work. However, from the Commission of Science, Technology and Industry for National Defense It is not difficult to know the general progress of the project from the few words passed down. More importantly, due to the cooperation between China and Europe, the merger of Boeing and McDonnell Douglas has still not made substantial progress nearly five months after it was announced. Boeing''s stock price was raised due to this news at the beginning of this year. As a result, it has gradually declined, and is even about to return to the state at the beginning of December last year. ?This is definitely not good news for Boeing CEO Phil Condit, who carries the stock price KPI. It is also very uncomfortable for McDonnell Douglas, which is already half-dead and in urgent need of Boeing funds to save its life, to continue to drag on. Judging from the response from Hufei, many McDonnell Douglas staff have already been unable to receive their salaries in full. The Commission of Science, Technology and Industry for National Defense has also organized efforts to take advantage of this last opportunity to retain as much MD90-related technical information as possible. Although there is a high probability that this project will not be able to continue, as a mainline passenger aircraft with a take-off weight of more than 70 tons, which is equivalent to the mainstream level in the 1990s, there are still many technical details worthy of China''s current study and study. The curtain on the side of the stage slowly opened, and Chang Haonan emerged from the darkness and walked slowly under the spotlight in front of the stage. Although the name of this award contains "youth", according to the generally accepted international definition, anyone under the age of 40 can be included in the category of youth, so the other winners are basically in their 30s. Even though the audience had already received a copy of the winners deeds before the opening ceremony, they still had an unreal feeling when they saw Chang Haonan on stage. When he appeared on the scene in his early twenties, he even made the other people look a little less like "youth". ? Another winner, Song Fangrong, is only 24 years old, but due to the difficult working environment, she looks much more mature than the 22-year-old Chang Haonan. What''s more, when the list was read out, Chang Haonan''s title was actually student. ??The tone set from the very beginning for this award was to be a stage for young people, so everyones positions are relatively ordinary. Engineers, substitute teachers, technicians, monitors But student is still somewhat eye-catching here. In other words, the results that the host just read on stage were actually achieved before he went out into society... The organizers have obviously taken this feeling of the audience into consideration. Or rather, they intensify this feeling specifically for the audience. Because when Chang Haonan appeared on the stage, a screen in the background directly printed the slogan "A strong young man will make the country strong", which immediately put him back into the youth category... There was thunderous applause in the venue, accompanied by the music melody of the "Road to Success" symphony. But he could still clearly hear the heartbeat coming from his chest. From the beginning of the rapid, then slowly and gradually. When Chang Haonan walked to the center of the stage, his heart felt peaceful. Following this was a brief speech from each person. ?Chang Haonan also understood why the time for this link should be compressed to a total of about twenty minutes. Because the educational levels and expressive abilities of the winners vary, it is unrealistic for everyone to give a long speech of more than ten minutes on stage, even with a teleprompter. So much so that when we arrived at Chang Haonan''s place, the time was actually a few minutes longer than expected. Maybe it was an emergency response, or maybe it was a small surprise specially arranged for him, the youngest winner. In short, after he finished his usual thank you and left the podium to wait to receive the award, the host asked him many questions. asked a question. "When the list of winners was just announced, I noticed that many comrades in the audience were surprised by your age, especially many comrades with children at home. They must want to know how you grew up. Can you tell us about it? What about this process? In fact, it can be seen from the style of the Spring Festival Gala that the style of such ceremonies in the 1990s was relatively relaxed and even unorganized. What''s more, today''s commendation meeting was not broadcast live, so adding a question temporarily was not considered. No big deal. There is no standard answer to this kind of question, as long as it does not make a general mistake. So Chang Haonan calmed down and picked up the microphone that had been placed on the stage again. When I was in high school, my ideal was to become a pilot. Unfortunately, although I passed the physical test during the recruitment, I was rejected during the reexamination because of a minor dental problem. In the end, I had no choice but to take part in the unified college entrance examination, and thats when I came to Beijing Airlines Since it is a youth honor awarded by the Communist Youth League, many schools in Beijing sent student representatives to attend tonights award ceremony. ?Chang Haonan''s words will undoubtedly leave a very deep impression on them. At the beginning, I had no interest in scientific research... ?Chang Haonan basically told the truth about his life experience since college, except for his rebirth. In fact, he was a person who studied very hard, but in the previous timeline, his talent was the limit. So even if the middle part is omitted, it doesn''t seem abrupt. In the eyes of others, it is nothing more than a story about a young genius who has accumulated a lot of experience. ?Of course, speaking on such occasions is not just for show-off. Lets talk about what China lacked most in the mid-to-late 1990s. Apart from money, its probably confidence. And there is a systemic lack of confidence. In this era, even the most determined and optimistic person in this era cannot possibly compare to Chang Haonan who came back from more than 20 years later. ??So he changed the topic and suddenly talked about the excitement that the conflict brought to him early last year. Like all of you, I was angry, but anger means nothing. So I began to wonder if I could do something of practical value. At that time, the school had an aircraft design course. That was my first real contact with a complete aircraft design project. Although the completion was still rough due to time constraints, it made me realize that I still seem to have a little talent in the field of engineering design... " His modification of the J-7 in his big assignment is known to everyone in the grade and even the entire major, and of course it can be talked about. "I am very grateful to Beijing Hang University and my mentor, Academician Du Yishan, for giving me the opportunity to participate in the Xinzhou 60 project. In this project, I completed a project that was judged to be impossible by foreign experts. It was also at that moment that I Suddenly I had a bold idea, that is, our Chinese aviation industry does not have to follow others, but can create something that others do not have..." I was lucky, and I soon encountered such an opportunity. By coincidence, our wing anti-icing theory was recognized by the European Joint Aviation Administration..." Chang Haonan''s speech began to time out halfway through his speech, but the host received a request from the backstage - don''t control the time, let him continue speaking! ?The audience in the audience did not show any signs of being distracted or impatient, but listened attentively. Listening to Chang Haonan''s calm tone, he spoke about one item of heart-stirring content. "..."?????"Finally, what I want to say is that people''s abilities may vary, but their attitudes and responsibilities do not. When a person chooses to shoulder his responsibilities and do his part, no matter what, he will be You can be called a hero in your own world! When these last words fell, the applause in the venue was several times louder than when he took the stage. Moreover, it lasts for a long time. ??Chang Haonan''s words are by no means an unfounded expression of sorrow for spring and autumn, but an inner reflection from looking back on his own two life experiences. A rebirth has changed a lot of things. But he has not changed the direction he chose. ?This sentence is not only addressed to the audience in the audience, but also to Chang Haonan himself in the previous life. Then, of course, the awards were given. Because certificates have been sent to the six winners in advance, only one medal needs to be awarded today. On the ceremonial staff''s tray, there is an exquisite mahogany box. The medal is golden, with a half circle of wheat ears on the lower half and five five-pointed stars engraved on the top. The middle pattern shows two people, each with one hand, holding a torch together. ? Symbolizes the fire and fire, endless life. The leader of the regiment who presented the award took out the medal with his own hands and put it on Chang Haonan''s chest. Another very familiar person. The speech I just made was very good. The other party shook hands with Chang Haonan. Looking forward to you bringing us more surprises, Comrade Chang Haonan. After the ceremony, there will naturally be other celebration activities for the winners. That is, dinner party. ?So after returning to the backstage to take off their makeup, they couldnt just leave right away. "When I saw Comrade Chang Haonan for the first time, I was really shocked. He looked too young. I thought everyone would be about the same age this time. But it turned out great. I was better than him and Comrade Song Fangrong. Its more than one round. ?Qin Wengui, who was sitting on the sofa in the lounge, looked at Chang Haonan and couldn''t help feeling a little emotional. Yes, he is still a student. When I see him, it reminds me of the time when I was in college... We are all old. ?Gong Judong, who was wearing military uniform, rarely relaxed. If you really want to say that, then I am actually a student now. Dont count me among the old people. As the only female among the winners, Song Fangrong''s makeup removal was more complicated than the others, so she still lay next to her, but she still said it in a half-joking tone. She has been studying for an adult undergraduate degree at the Hubei Provincial College of Education for the past two years, so she said this. ?Of course, its just a joke. Everyone knows that the student status of two people is not the same concept. Chang Haonan, who was slapped with rainbow farts by several people, quickly waved his hand: Dont say that. I come from a family of intellectuals and Im just lucky. If I really want to talk about my spirit, I still have to learn from you. ?This is absolutely true. His working conditions are simply not much better than those of several others. Especially Qin Wengui and Song Fangrong. Comrade Chang Haonans name has been very popular in our industry for a while. Before today, I always thought he was an old professor or an old technician. ??The person who spoke this time was another winner, Li Bin, who was in his 40s. He was a technician and was relatively inarticulate. His previous acceptance speech had taken the shortest time. You dont work at the Shanghai Hydraulic Pump Factory, so how can you still be connected with the aviation system? Qin Wengui, who is also an engineer at a state-owned enterprise, was a little surprised by this. Comrade Chang Haonan has served as a consultant for several projects our factory has participated in. The application of the new process he developed has solved many problems that we have been worrying about for several years. What Li Bin is talking about should be the soft abrasive processing technology developed by Chang Haonan to solve the problem of polishing the air film hole of the turbojet 14B engine blade. ?In the past half year, this technology has been promoted to the first batch of factories participating in the Seiko Plan for process inspection. Judging from Li Bins feedback, the effect should be good. "Then you have to hurry up. The industrial pumps used in our oil fields are almost all Rexroth, Ebara, Wilo, Kawasaki...all imported. It would be great if I could replace these brands with those from your factory before I retire..." ?? Qin Wengui had also washed off the temporary hair dye he had just used, and returned to his gray-haired state. Even though its not the first time Ive seen it, this look is still quite shocking compared to the others. It is hard to imagine what he has experienced in Qingtang these years. We will try our best. Li Bin nodded, and then as if he suddenly remembered something, he turned to Song Fangrong who had just finished removing her makeup and asked: By the way, Comrade Xiao Song, is there any age limit for the adult undergraduate program you just mentioned? My classmates are generally about the same age as me, but there is no clear limit on how old they cannot be. Song Fangrong was stunned for a moment when she was suddenly called, and replied while wiping her face: Are you going to study too? Yes, I recently took over the soft abrasive process developed by Comrade Chang Haonan. The things inside are much more complicated than before. It is a bit difficult for me to accept it at my current level..." ?Chang Haonan did not interrupt during the whole process, but quietly listened to the conversation of several other people. More and more people are changing their life trajectories because of him. (End of this chapter) Chapter 302 There is no way to keep a low profile (2-in-1) Chapter 302: No way to keep a low profile (two-in-one) The dinner party exceeded almost everyones expectations. ?Nearly all of the people whose names I often heard on the news network appeared. ?Of course, Chang Haonan, who already knew this period of history, was not very surprised by this. ?Due to various complex historical and practical reasons, although China in the early days of the founding of the People''s Republic of China followed the Soviet Union in many aspects, it did not establish a complete and rigorous merit system like the latter. Not even an army, let alone ordinary citizens. Except for the three major medals awarded in 1955the August 1st Medal, the Medal of Independence and Freedom, and the Medal of LiberationChina had never officially established any medals until 2011 in the previous life. ?For a long time, the only merits awarded in an institutional and standardized manner were first-, second- and third-class merit medals issued within the military and police systems. ?Subject to jurisdictional issues, it is impossible for non-military and police officers to obtain credit even if they have great achievements. ??You can only use other methods to hit the sidelines. ?That''s when Chang Haonan got the somewhat weird first-class "Bat Hunting Operation" commemorative medal. According to regulations, first-class merit is an honorary title. However, the awarding of honorary titles is also not systematic, and an exclusive title is often customized based on the recipient''s deeds. In a good way, this can be regarded as a privilege. But at the operational level, it will actually cause a lot of trouble. For example, there is no way to intuitively reflect the matter of receiving an honorary title. You cant carry your certificate with you wherever you go. For another example, if a person obtains two honorary titles, there is no provision stipulating which of them comes first and who comes last. In principle, there is no distinction between high and low honorary titles. ??However, both in perception and in reality, there is obviously still a gap between the "Patriotic Army Elite Model" and the "Volunteer Army First-Class Hero", which are both honorary titles. As for honors outside the military and police system, it is even more chaotic. Some award-winning organizations even only issue awards without keeping records, resulting in many honors that sound noble but have no value at all. ?This has caused a psychological gap for the winners themselves. Whats more terrible is that it has spawned many criminals who take advantage of this loophole to commit fraud. ?In an era of insufficient information, leaving a province is similar to going abroad. I said in Province A that I was the recipient of the **** honor in Province B, and there was no way to check it. ?This situation lasted until the late 1980s, when it finally began to change. The All-China Federation of Trade Unions has established the first medal that is systematically awarded to all citizensthe National May Day Labor Medal. It also stipulates that among the winners, the proportion of front-line grassroots workers cannot be less than one-third. The Chinese Youth May 4th Medal that Chang Haonan and the others received was the second one. ?In this special period when people''s minds are changing, launching a standardized national merit system will undoubtedly be conducive to ideological and spiritual construction. In particular, young people are the top priority. Therefore, this first May Fourth Medal awarding ceremony must be grand and far beyond the standard. ?Hence, not only were the leaders in attendance astonishing, but also the media who came with them were all well-known. Obviously, this matter will receive unprecedented publicity. In short, when the entire celebration was over and Chang Haonan returned home, it was already close to midnight that day. He looked at the certificates and medals on the table, took out his mobile phone and entered a series of phone numbers. This is Chang Haonan''s personal habit. He will not open champagne at halftime until everything is finally settled. Now that the ceremony has been completed, it is natural to inform the family of the good news. ??But looking at the time displayed in the upper right corner of the phone screen, he hesitated and still did not press the dial button. Its too late, well talk about it tomorrow. After several hours of excitement, as soon as you relax, the first thing that comes over you is naturally exhaustion. In addition, he didnt have a good rest last night because he had to prepare his acceptance speech and familiarize himself with the ceremony process, so Chang Haonan just changed his clothes and lay down on the bed and fell asleep. At this time in 1997, even wired networks were not yet popular in China, and mobile networks were a thing whose concept was not very clear. Therefore, it would not be like in the future. After the ceremony here, the media over there would immediately release the online version of the news and put it on the Internet. Hot search. At this time, Huaxia TV had just completed a major equipment upgrade and replacement. It was in the process of switching from recorded news to live news, and its response speed was also not that fast. Generally speaking, newspapers and radio are the fastest responders to news. Therefore, the next morning, when Zhou Li, who was far away in Liucheng, was the first to arrive at the office, she simply cleaned her work station, poured hot water and habitually threw a few newspapers inserted on the door handle on the table. , the whole person was stunned instantly. She accidentally caught a glimpse of the headline of one of the newspapers: The All-China Youth Federation of the Communist Youth League of China decided to award six young people the Chinese Youth May 4th Medal for the first time ?Of course, if it were just like this, it wouldn''t make Zhou Li lose her composure. But there is a line of slightly smaller words below the large and conspicuous title ?Chang Hao, Nan Qin Wengui, Li Bin, Liu Xiaogong, and Fangrong of the Eastern Song Dynasty won the honor. In the officially released news, the order of the names of the six people was changed. It is no longer in the order of the strokes of the surname, but in the order of the medals received. What Chang Haonan got was the No. 1 May 4th Medal. So it is ranked first. Zhou Li put the cup on the table, took out her glasses from her bag, put them on, and checked again. ??This name at the top of the list...why does it feel a bit familiar? ?Oh, it seems that my sons name is Chang Haonan... The news is accompanied by photos of the winners. But because it is a black and white photo printed with ink, I can only say... It can be seen that they are six humanoid creatures. ?However, from the body shape, Zhou Li felt that the man standing in front of a twin-engine propeller plane in the first photo seemed to be her son. Then she glanced at the text again. Chang Haonan, male, born in 1976, from Liucheng, Liaoning Province, student at Beijing University of Aeronautics and Astronautics Obviously, everything is correct. The huge surprise made Zhou Li feel dizzy, and she sat down directly on the chair. A few seconds later, not believing her eyes, she pulled out several more newspapers from underneath. "Guangming Daily" Same news, front page headlines. "China Youth Daily" Same news, on the upper right side of the front page, one of the double headlines. Reference News ??Still the same news, still the front page headlines Obviously, she was not hallucinating. After the huge surprise, Zhou Li felt calm instead. Even a little panicked. ?Since she was very young, Chang Haonan has always been very competitive, which is the pride of both her and Chang Yuanchao. ?But this time, I was a little too ambitious. Zhou Li still doesnt know what level this Chinese Youth May 4th Medal is. ??But it is obviously not an ordinary thing for all newspapers to report it with front-page headlines. She subconsciously wanted to contact Chang Haonan directly to confirm the matter and send congratulations, but for a moment she didnt know how to express it... As time passed by, the previously deserted campus gradually became lively. ?Zhou Li decided to take a few classes today first. Chang Haonan''s achievements are mainly due to his own efforts. As a parent, the help he can provide after his children go to college is really limited. ?She secretly warned herself that at this time, she must not get carried away. As the mother of a person who has been on the front pages of major newspapers, I still have to be more reserved. Otherwise, you will be embarrassing your son. ?However, there are some things that she can''t just keep a low profile if she wants to... ??A colleague who almost arrived at work on time and was almost late came in and mentioned this matter to Zhou Li who was busy preparing lessons: Teacher Zhou, I listened to the radio on the way to work today, and they said there was a big prize given out yesterday, and there was a winner with the same name as your son... ??Chang Haonan, as an outstanding graduate four years ago, still retains some popularity in the school. ?The other party''s words instantly drew all the attention in the office to Zhou Li. Teacher Zhous son? I remember your name is Chang Haonan? He was admitted to Beijing Airlines from our school, right? Soon someone noticed the pile of newspapers that almost no one was interested in. The headline on the front page of todays newspaper seems to be the same thing... The Chinese Youth May 4th Medal seems to be a very high-end award. Let me seeits really called Chang Haonan At this point, Zhou Li had no choice but to raise her head, take a deep breath, and then replied in the same tone as usual: It is indeed the same as my sons name. Thats him. ?Zhou Li''s answer instantly silenced the noisy office just now. Including the colleague who first mentioned this matter just now, everyone looked at her with almost simultaneous expressions of astonishment. ??The former was just looking for a topic to chat about, and he never thought that Chang Haonan in the news was actually Zhou Li''s son. After all, when you listen to the radio on the way to work, you naturally dont listen very seriously. Not to mention the other people who were just joining in the fun. ?Each office has only one copy of the newspaper ordered by the work unit, and no one will read it at all. Only the first person who comes to work will take a glance at it when he takes it off. So for a moment, everyone even thought that Zhou Li was playing along with their joke. ?However, at this moment, the office door was pushed open violently, and a lean, panting middle-aged man in a suit appeared at the door. Its their principal, Jiang Zhichao. Principal Jiang? Someone shouted. ??Jiang Zhichao took a few breaths and walked up to Zhou Li in three steps at a time: Teacher Zhou, Comrade Zhou Li, and classmate Chang Haonan won the May 4th Medal. Why didnt you tell your work unit about such a big happy event..." OK, now there is no need to doubt it. It must be true. After all, Zhou Lis name has been changed to you... As a principal, Jiang Zhichao is quite satisfactory, neither good nor bad. In the six or seven years since he took over as principal, although the school has been steadily declining, anyone with a discerning eye knows that this is a problem caused by the general environment and has little to do with any individual. ?The only thing worth mentioning is that this person prefers to flatter others, but generally speaking, this has nothing to do with ordinary teachers in the school. Its just that todays situation is obviously unusual. Because the person he was trying to flirt with became Zhou Li... Everyone''s expressions instantly switched to shock. ?Of course, there is also envy. After all, those who are still working as ordinary teachers at their age, no matter how high their professional titles are, have basically reached the end of their career. Therefore, most of their thoughts and expectations are placed on the next generation. ?Although I dont usually compete openly with my children, a little bit of comparison is still unavoidable. It''s just that this time, Zhou Li''s next generation is really a bit foul... After a short pause, Jiang Zhichao continued: Well, you see, I am not qualified as a principal. It wasnt until Director Shen of the Education Bureau called my office that I found out that our school had such an alumnus with a long history... Uh,...Principal Jiang, I actually only found out about this matter after reading the newspaper in the morning. Xiaonan didnt notify me either. I guess he is still resting and didnt have time to contact us..." Facing Jiang Zhichao with a smile on his face, Zhou Li didn''t do anything special. She has a clear understanding of herself. Even after seeing the report that her son won the award, she has never thought that mother is more valuable than son. But this obviously did not faze Jiang Zhichao, and he immediately changed his perspective: He is neither arrogant nor impetuous in the face of honors. He is worthy of being a son trained by Teacher Zhou..." In short, after a series of rainbow farts, Principal Jiang finally expressed his intention: Teacher Zhou, I remember... Xiao Chang should graduate from undergraduate degree this year? Unconsciously, even the name Chang Haonan was changed. Thats right, but he has already passed the selection process for postgraduate students who are exempted from the examination and will continue to study for postgraduate studies in the second half of the year. ?Zhou Li''s inadvertent answer stabbed the hearts of all her colleagues in the office. ?Those who have older children can only shake their heads helplessly and wonder why other peoples children can be so defiant. As for those whose children are younger and have not yet taken the college entrance examination, they are already thinking about how to learn from Zhou Li. ?However, Jiang Zhichaos focus is not here: "What I mean is that the summer vacation for the graduating class should be much longer than usual. If your Xiaonan is free during the summer vacation, I wonder if you can let him go back to school and give a message to the juniors?" Hearing this request, to be honest, Zhou Li was moved. As a mother, when her child has achieved such a proud achievement, she naturally hopes that he can return home in fine clothes and make the whole family look good. ?However, her rationality still prevented her from nodding directly, but slowed down her hand: "This... I can convey this to him for you, but Xiaonan is an adult after all, and he is also very busy outside. Even during the Chinese New Year this year, he only stayed at home for less than a week, so I can''t make this decision for him. " ?This impeccable answer made Jiang Zhichao unable to continue to dwell on this topic, so he had to change the topic: Thats fine. The school also wants to respect Xiao Changs own opinions. But Mr. Zhou, there is one more thing. Director Shen of the Education Bureau will come to deliver the good news in person later, so I would like to see... can you link up the morning class with other teachers? ?This request was reasonable, and a math teacher next to me volunteered to take over the two free classes in the morning. Looking at Zhou Li and Jiang Zhichao leaving, a teacher who was about the same age as the former sighed with emotion: It would be great if my son could be as successful as Mr. Zhous son... Mr. Zhou, you have a good way to teach your children... This is not what I admire most about Teacher Zhou. ?Another slightly younger teacher sitting in the corner followed and said: If you were put in Teacher Zhous position today, when Principal Jiang asked the children to come back to speak, would you be able to resist nodding like she did? A question made the whole office fall into silence again. ?After a while, someone sighed again: Teacher Zhou, you have a good way of teaching your children... Thanks to the book friend [who is just a runner] for the leader who rewarded me. Its just that the end of this month is really busy, so the update will be completed next month! (End of this chapter) Chapter 303 Youthful (2-in-1) Chapter 303 Youthful Spirit (two in one) When Chang Haonan woke up from his sleep, it was already the afternoon of the same day. ?There is no other way, participating in such a large-scale ceremony is more tiring than staying up all night in the computer room for a week. Furthermore, after rebirth, while acquiring the system, he seemed to have a sleep time storage function activated. Able to sleep for long periods of time at a time and then use very little sleep to maintain energy over the next few days. ?Or the other way around, you can take out a loan first and then repay the debt. Having magical skills as a worker belongs to this category. In short, after looking at his watch, Chang Haonan was not particularly surprised that he slept for more than ten hours at a time. Yesterday, because it was already late at night when I got home, I didn''t call home. Therefore, after washing briefly, the first thing Chang Haonan did was to pick up his mobile phone and prepare to dial. After unlocking it, I discovered that there were already many missed calls on it. Thats not surprising, after all, most of the day has passed. ?Chang Haonan briefly looked through the call records. In addition to the expected calls from Du Yishan and Tang Lintian, there were also several unfamiliar numbers. Have been beaten more than once. At this time in 1997, the SMS service had not yet been launched in China, so the mobile phone was really just a mobile phone. If the call could not be made... ?Then it wont be possible to get through. ?You can only wait for the other party to see it and reply. Considering that it was still almost time to get off work, there was a high probability that no one would answer even if he called home, so he called Du Yishan back first. The subject of the latters call was very simple. One was to express formal congratulations to him, and the other was to praise his performance last night. Xiao Chang, your speech last night, when you answered the hosts question and ended up running out of time, really touched everyones heart! Du Yishans tone was filled with rare excitement: "Many media came to the school today and wanted to publish the full text of your speech yesterday. I told them that the part where you answered questions was added temporarily, so there was no speech. The first reaction of those reporters was Dont believe it "This is normal. After all, you are only 22 years old this year, and you have already achieved more than many people have achieved in their lifetime. However, when you gave your acceptance speech, your words were very mature. If we didn''t know the inside story, we would have thought that you were being punished. What kind of advice from an expert..." ?Chang Haonans first reaction was surprise. The main reason is that the entry point chosen by these media is indeed unique. ?But it makes sense if you think about it carefully. As Du Yishan said, Chang Haonan in this timeline has only lived for 22 years. Making such a high-profile statement is indeed inconsistent with his seemingly high-speed and unparalleled resume. ?Such a contrast between youth and maturity will naturally attract the attention of many people. It was obviously impossible for Chang Haonan to truthfully explain that the passage was actually addressed to himself in his previous life, so he could only pass it on in a vague way: "It''s nothing, just some personal reflections. If the school needs it, I can sort it out..." After all, he had studied at Beijing Airlines for two lifetimes, and he still had feelings for the school, so he didn''t mind helping out if he could do something like this. "Then there''s no need for you to go to the trouble again. The organizers of CCTV will naturally release records of this kind of thing, but it will be a little slower. I''m afraid this report on the May 4th Medal will last at least a week. , not in a hurry. Continuous coverage for a week? Chang Haonan had just opened the refrigerator door and was about to take out a few eggs to make tomato scrambled eggs when he stopped what he was doing. "Yes, starting from today, there will be a three-minute special section in the Xinwen Network that will last for seven days. There will be a general report tonight. The content in the next six days will correspond to the personal deeds of your six winners. " Du Yishan said cheerfully: "Of course, all the submitted materials related to your work in the past year have been screened by the school and the Science and Technology Commission, and the scope is strictly controlled to the parts that will not be leaked after being made public. In addition, I I have asked the publicity department to send you a copy after the draft is completed, and you will review it again and make sure it is OK before it will be officially released. " ?The battle was huge, but considering the weight of the May 4th medal, it was worth it. In this era, there is too little guidance in the right direction. As for the content of the report, Du Yishan was involved in checking it, so Chang Haonan was not very worried: Teacher, you have considered everything carefully. If you can do this, it is naturally the safest thing to do. At this point in the conversation, the former revealed a little secret on the phone: "It is precisely because of your special situation that the order in which your personal deeds are introduced, including the order in which you appeared at the previous awards ceremony, has been specially arranged to be based on the strokes of your surname instead of the medal number, so that it is logical. I will put you at the end of the queue to give the program producers and the host at the time more buffer time. The fact that these modifications were made specifically for Chang Haonan obviously shows the importance he receives. After a short pause, Du Yishan continued: In addition, because it will involve the personal experiences of several of you, there should be a brief one-on-one interview later. When are you free in the past two days? I should be at home these two days, so you can come to me at any time, just work with their working hours. Generally speaking, Chang Haonan doesn''t like to participate in these things. ?But this also depends on the situation. CCTVs exclusive interview is worth it... ?This is not just a matter of winning honor for oneself, but more importantly, it also involves building his influence and voice. The simplest example, today Chang Haonan can already influence the development route of equipment construction and aviation industry to a considerable extent. But if it had been a year ago, when he had just been reborn, how could anyone care about how an ordinary college student guided the country? ? It is impossible to even have a channel to make suggestions, let alone have any impact. Only after he has proven his ability by completing projects one after another, can his opinions be considered to have real value. The accumulation of personal honor and improvement of status also have basically similar effects. "In this case, it''s better to hurry up sooner rather than later. I''ll ask the reporter over there to come to you in the afternoon. This way, if there is any need to make any changes later, there will be enough time left. Remember to listen to the phone and wait for the other party to arrive. Ill contact you again ?After finalizing some follow-up publicity matters with Du Yishan, the second person Chang Haonan contacted was naturally Tang Lintian. What the latter wanted to say was not much different from Du Yishan, so after learning that the interview had been arranged, he just chatted for a few words and hung up the phone. Then came the numbers that Chang Haonan had not remembered. In this era, there were not all kinds of rampant phone scams, so calling back an unknown number usually did not cause any problems. The first call, judging from the area code, was from Beijing. The call was connected, and the other party directly announced his identity and said that he was the number one guest house in the aviation industry. ?This made Chang Haonan stunned for a moment, and then he realized that it was probably someone who was on a business trip to attend the ceremony last night who called him. After stating his name, the other end of the phone asked him to wait for a moment in a clear tone. It was obvious that the caller was well prepared for his call back. A few minutes later, a strong voice sounded: Xiao Chang, you performed very well in yesterdays ceremony. You really made us aviation people look good and cheered up the whole China! ??Although the call quality in this era is relatively average and the sound signal loss is large, Chang Haonan still heard it immediately. It is Yang Fenghao. "Mr. Yang was so impressed. I was able to think of those things on the spot thanks to some of my reflections while participating in the 83rd Project. In the final analysis, I still have to thank you and all the seniors for providing me with good opportunities. and platform, including my ability to win the award this time, I still rely on my seniors and colleagues. ?This kind of private conversation is not the time for pretentiousness and pretentious talk. ?Chang Haonans gratitude to Yang Fenghao came from the bottom of his heart. ?While attending the ceremony yesterday, Chang Haonan saw on a table the relevant information of several people competing for medals. In the column of his recommended unit, he filled in: China Aviation Industry Corporation (main) and Beijing University of Aeronautics and Astronautics (association). It is enough to show that even if Yang Fenghao did not play a decisive role in this matter, he should at least be one of the initiators. After all, at the end of last year, the other party personally promised that he would recommend a grand prize to him. ?Chang Haonan had some understanding of the chief engineer''s character in the past. ?Has a hot temper, even a little quaint, but is straightforward and does what she says. If I tell him to recommend it, I will definitely give it to him. Its just that I never thought it would be so big before. There are no outsiders here now, so Ill just say it straight. ?Faced with Chang Haonans thanks, Yang Fenghao did not shirk it. "I actually asked Liang Zhuoping to apply for this award at the beginning. Of course, comrades from Fucheng, Rongcheng, and Haojing also provided you with a lot of application materials, but in the end, it was you who actually won the award. "Myself, it is said that the six of you were selected from nearly a thousand people this time. The competition is quite fierce." "Of course, do I recommend you to go up? I also have selfish motives. In the future, you will become a famous person, but you must remember to help us more with the projects of our institute. In the second half of last year, with you at that time, the speed of advancing the project Its amazing. When I think about it now, it feels like a dream. Lin Shikuan and others from the digital design team talk about you all day long. I think I just framed your photo and hung it on top of the door of their computing center..." There was a burst of hearty laughter from the other side of the phone. There is no need to hang it outside the building... Even though he knew that Yang Fenghao was most likely joking, Chang Haonan still quickly stopped him. What is your identity? Hang the photo outside. ??Having a life that is too long to last is a yes. Dont worry, they are there for you. ?Yang Fenghata also laughed: You can come back to Shengjing when you have time. You are from Liucheng, so we are still fellow villagers. Even if there is no project, you can come back to visit relatives. In fact, at the beginning of this year, when Yang Fenghao first proposed to apply for the May 4th Medal to Chang Haonan, his plan was to attract the latter, and then take advantage of the fact that he was close to the water and wait for him to graduate. He came straight into the job. However, the plan could not keep up with the changes. Chang Haonan played a big game in the next four months, causing his name to quickly spread among high-level personnel within the Commission for National Defense Science and Industry, and more eyes were fixed on him than before. There are already many times more. On the one hand, the importance of this May 4th Medal recommendation to Chang Haonan suddenly dropped - you 601 do not recommend it, and some people are queuing up to recommend it. On the other hand, Yang Fenghata is very courageous, but in the face of so many colleagues, he is also a little afraid of public outrage. In short, by the time he was on the phone with Chang Haonan, he had already completed a self-reconciliation and chose to settle for the next best thing. After all, given the capabilities of the other party, as long as they can put more thought into their project, not to mention directly leading to the finale, at least it can have a huge promotion effect. ?And Chang Haonan can naturally guess Yang Fenghao''s thoughts. ?This kind of thing can be considered a win-win situation. ??Although he hopes that he can develop some tools or methodological things to promote China''s scientific and technological and industrial development in a more even way. But the project must still be done. Technical work is his foundation. Even if he has gained a certain reputation and status, he must not lose it. Whats more, Chang Haonan has not had the experience of leading a project alone until now. In the field of engineering, this is ultimately a shortcoming. ? Many people have a misunderstanding, that is, they think that the step-by-step rules in this industry will limit the development of real talents. In fact, it is not the case. Even if you start with a max-level account, you still need to grow. Whats more, directly participating in the project will bring a lot of convenience. If nothing else, take the multi-physics simulation topic he has been studying recently as an example. Even if he does build the software after a while, the first problem he will face is how to promote it. Relying on administrative orders is of course one way, but in terms of effect, it is definitely not as shocking as him personally going out and using his own software to complete a large project. Successful experience is always the most convincing thing and is more useful than the statements of a hundred academicians. Just like Chang Haonan''s earliest achievement, that is, the Chang''s model of the wing derived from the MA-60 project, it has now been promoted almost within the entire aviation industry system. If there is no need for confidentiality, I am afraid that other industries will also Start adopting. ??The phone calls after Yang Fenghao all had the Haojing area code on the other side. Apparently it is 603 schools. As for why there are so many That was naturally because Yi Yuanhe, who represented 603, Guo Lin, who represented 14th Institute, and Yao Mengna and Xu Yang, who represented themselves, called separately. Fortunately, they basically just expressed congratulations, so they basically just chatted for a few words and ended. ?Perhaps the news that Chang Haonan finally woke up and started to call back was spread by someone unknown. After ending the call with Xu Yang, he no longer needed to take the initiative to call back Because new calls are coming in all the time. Rongcheng Institute 611, Fucheng Institute 624, Nanzheng Factory 182, Zhucheng Institute 648, and even Chang Haonan worked in the past life, and in this life, they are only 29 bases with some work contacts... Even though quite a few of the phone calls were just to express brief congratulations, and only Xue Chishou from the 611 Institute chatted with him for a while, in the next hour or so, Chang Haonan still felt unprecedentedly busy. I finally understand the concept of "red people" that Yang Fenghao just mentioned. ??He has never looked forward to the activation of the text messaging function as much as he did at this moment. In the age of text messages and WeChat, many people with whom the relationship is only casual or work-related can send a text message to congratulate them. And he only needs to edit a response text message to send out a group message, instead of being like now, still having a dry mouth after drinking two large glasses of water. ?Shortly after the endless ringing of the phone finally came to an end, Chang Haonan received the news that he was ready to start the interview. Originally, he was a little nervous facing the one-on-one interview with CCTV. But after experiencing the indiscriminate bombardment just now, it seems to be nothing. Desensitization reaction, right Chang Haonan cursed while changing his clothes. ?Ten minutes later, when Chang Haonan saw a well-known host in the school conference room who was often called his sister, but was actually almost 20 years older than him, he was initially surprised. Later, after explanation, I found out that although this interview is not a special interview program and will not be broadcast in its entirety, there may still be some clips added to the report. In addition, it shows unprecedented attention, so it is impossible to randomly send any People come here. I have to say that the professionalism of the team sent by CCTV is no problem. Even though the host knew nothing about aviation, the entire interview process made Chang Haonan feel extremely comfortable. The series of questions were concise and powerful, but not intrusive. ??This is in sharp contrast to a certain female host who later interviewed Academician Ding Zhongli. At the end of the interview, the other party suddenly asked about what Chang Haonan said at the ceremony last night. "You are the youngest interview subject I have ever faced. Generally speaking, when people face a young talent, they always expect him to be more high-spirited or more public. But your performance last night But it showed us a different state. ?This time, Chang Haonan could not use joking to cope with the situation. So he lowered his head and thought for a while. ??The host did not interrupt, but quietly waited for the answer. After about ten seconds, Chang Haonan raised his head again: Personally speaking, I think youthfulness is not unruly, arrogant, or arrogant, but it is maintaining sincerity after thousands of sailings. (End of this chapter) Chapter 304 Separate futures (two-in-one) Chapter 304: Separate futures (two in one) In fact, this paragraph was not included in the original interview schedule. It was completely a question that the host Ni Ping just added on an impromptu basis. Mainly out of curiosity. ?Although she did not go on stage to host last night''s award ceremony, she still watched the whole process behind the scenes as a backup host. ?The most impressive part is naturally the section where Chang Haonan answered the question. Although many people at the time took it for granted that it was a link that had been prepared long ago, and Chang Haonan''s answer was naturally memorized, but as one of the core staff members who participated in the entire preparation of the program, Ni Ping knew very well that the question was between the two. It had been deleted from the first round of preparations a few months ago. The reason why I brought it up to ask again was because a leader responsible for awarding awards was delayed on the road that day, and the host was asked to postpone the timetable by five minutes. So Chang Haonan definitely didnt know that this problem existed before going on stage, let alone prepared in advance. ?That speech should be his own thoughts. ?This is where the problem just arises. Ni Ping didn''t even expect to get a serious answer at first, because the photographers next to him had already started to pack up their equipment and prepare to leave. Guests with a little interview experience will know that the questions asked by the host at this time are often in the form of To relax your mind and bring the relationship closer, you do not necessarily need to answer in the same way as during the interview. ? Its just that Chang Haonan always remembers a classic line from a certain British drama at this time-all microphones should be regarded as open. Therefore, after he thought about it and said that sentence, Ni Ping, who had always been quick to respond, was distracted for an unprecedented moment. On the one hand, it does contain some philosophy. ?On the other hand, she subconsciously felt that the other party seemed to have something on his mind. ??Although I dont have a clue as to where it refers specifically, the statement that after thousands of sails, still maintain sincerity, it seems to be describing a person in his forties or fifties... Fortunately, no matter what, the subtitle of the subsequent report should be considered. ?Furthermore, this time, Im afraid it can also arouse some resonance in a wider range. The decision of Taiwan to choose Chang Haonan as the main publicity target is indeed correct... After coming back to his senses, Ni Ping smiled and responded: You said it very well. Although time cannot be turned back and age cannot be reduced, peoples mentality can completely return to their youth. Thank you very much for taking the time to be interviewed by us. The two stood up and shook hands as a farewell: It doesnt matter, we should cooperate with the publicity. Besides, this is a win-win situation for us. ?Chang Haonan said a little politely. After the interview, Tang Lintian originally planned to stay with the other party for a meal. On the one hand, he wanted to take this opportunity to develop media relations. On the other hand, Ni Ping is indeed quite popular these days. Unfortunately, they did not sell the show. Instead, they declined on the grounds that the program production cycle was tight and the materials they received needed to be returned to the station immediately for processing. "well" ?Looking at the backs of everyone from the program production team getting into the car and leaving, Tang Lintian sighed with a sense of loss: Xiao Chang, if you had spoken just now, I guess they would have been able to stay. Uhit shouldnt be the case, right? ?Chang Haonan was actually a little glad that Ni Ping and others refused. ?It''s already past six o''clock now. If we really want to eat this meal, I''m afraid we will have to stay up until midnight. ??He was also thinking about calling his family and relaxing again after he got back. By the way, theres something I forgot to tell you just now. ?Tang Lintian suddenly turned around and looked at Chang Haonan. Winners of the May 4th Medal will receive a bonus of 200 yuan, which has been distributed to the school. The corners of the latter''s mouth twitched slightly. Even in 1997, 200 yuan was not much. Of course, the important thing about this award is that it is an honor. Even from a utilitarian point of view, the various benefits that will be brought about by the long-term success are by no means comparable to a few hundred dollars. However, Chang Haonan did not expect that this benefit would come so quickly. Just when he was adjusting his mood and preparing to say something, Tang Lintian added another sentence: "Of course, the 200 yuan was given by the Communist Youth League. The school and the college took into account your contribution this year and decided to give you a special scholarship. In addition, the Beijing government also expressed its gratitude to you. Congratulations and condolences, and we have given you a certain reward. ??This breathy way of speaking is definitely intentional. Chang Haonan''s mood also experienced the feeling of riding a roller coaster. Fortunately, although he also likes money, he is still relatively calm on the surface and does not make a fool of himself. "The school contributed 50,000 yuan, and the capital contributed 10,000 yuan. The three bonuses add up to a total of 60,200 yuan. However, there are still some procedures to go through. You can keep a bank account of your own and we will complete the process as soon as possible. , give you the money." Dean. ?Chang Haonan said in as calm a tone as possible. "What''s wrong?" Do you need me to chase Teacher Ni and the others back? Since the dinner party has fallen through, Tang Lintian has not continued to retain Chang Haonan. He probably also considered that he should still have many people to contact, and he also has a lot of work to arrange later. ?As a dean, there is such a prominent figure in his college, so naturally he cannot just pass by. The quality of being low-key can be considered an advantage in a person, but it should never appear in an organization. ?This is not a problem for Tang Lintian himself, but also involves bringing honor to the entire college, school, and even Chang Haonan himself. So in the end, Chang Haonan left the aircraft building alone again. ?Just a few steps out, he saw many students walking in the opposite direction from him in groups. Many of them are familiar faces from the past. ?It is just after dinner, but even so, the number of people on campus seems to be much more than usual... Haonan! Just when Chang Haonan was a little confused, a voice suddenly came from the side. He turned around and found that it was several people who were in the same dormitory as him. To be precise, five people. ??Except for himself, it was normal for Wu Yifan to see no one in school, and Huang Zhiqiang was not seen either. ??Although we havent contacted each other for a year, we are roommates after all, and there is still some affection between us in our past and present lives. ?So Chang Haonan stopped and said hello to the other party. I havent seen you in person for the past year. Why do you feel like you are busier than Lao Wu? The roommates all knew that Chang Haonan changed to a single dormitory after getting his bachelor''s degree, but they didn''t know that he moved directly into the faculty apartment, let alone what he was doing now. Well, as you can imagine, Academician Du is very busy and the projects are not in the capital. During this period, I basically traveled twice a week, once for three days and once for four days. The humorous description made everyone laugh out loud. A lot of pleasantries followed. Chang Haonan naturally couldn''t talk too much about himself, but fortunately, other people in the dormitory talked more, and he and Chang Haonan talked a lot about other people in the same grade. ?For example, Huang Zhiqiang failed the course, so he is now retaking it. He also has to complete the final project at the same time, and was rejected during the re-examination for the postgraduate entrance examination. His life is quite chaotic. Fortunately, Liu Hongbo showed some mercy. Liu Ran and other other team members just passed by with low scores and did not die together. ?Zhou Shuwan has also entered the laboratory, but his development is closer to the normal line and he is still helping his senior brother. ??On the contrary, their former counselor Liu Chenchen, because he speaks good English and can speak some French, seems to be traveling all day long like Chang Haonan, working on projects with his mentor. Zhang Man got an offer to study directly for a PhD at the University of Birmingham. There is an aerospace engine laboratory sponsored by Rolls-Royce. Although international students will definitely not be able to participate in any core work, as long as they can get in, they can even participate in some peripheral projects. , which is also quite an impressive resume after returning to China. "It''s just that I personally feel that she might not come back..." Another person shrugged and said half-jokingly. Strictly speaking, there is no evidence for this speculation. Even in Chang Haonans previous life, he actually didnt know where Zhang Man went or what he did. But there is still some rationality. After all, I am going abroad at my own expense. Even if I dont come back, others cant say anything. These days, how many public-sponsored international students are living abroad after graduation... Even though the country originally sent people out with the idea that one out of ten would come back with a profit, expectations are expectations, and this does not constitute a reason for some people to directly stay outside. As for the older people in the dormitory, although they have not continued their studies, fortunately they have all found decent jobs. ?For example, Liu Ran obeyed the assignment and went to a power plant in his hometown As to why people who study aircraft design are assigned to power plants... Dont ask, asking is a characteristic of the times. ??The work assignments for undergraduates can at best ensure that they are not biased in general. For example, people who major in mathematics will not be allowed to be copy editors. The rest depends on fate and whether they are tough or not. ?But Liu Ran himself thinks it''s pretty good. His family''s conditions are average, and if he''s close to home, he can spend less. ?The eldest brother in the dormitory, Liang Hao, jumped out and went to a company that had just restructured and switched to wind power. ?The other people have basically gone to private companies and foreign companies. There is no way, it is impossible for undergraduates to enter any core positions, and for ordinary employees, the income gap is really too big. What''s more, it''s almost May 1997, and anyone with any brains has already felt the cold winter brought about by the mass layoffs. After a conversation, Chang Haonan asked the question he had just asked. Speaking of which, I see that many people are walking that way today. They are going to... "you do not know?" Liang Hao showed a somewhat surprised expression: I just received a notice this morning, saying that there will be some kind of graduate education conference in the evening, and all the graduating students of the school must participate. Even Lao Wu who is outside the school said that he will come back. "You... didn''t expect that students who become academicians have such benefits, and they don''t have to participate in such boring things." Liu Ran, who was not very close to Chang Haonan before, also made a joke. "Well...I did not receive the notification. Maybe Academician Du pushed it for me." ?The former touched his chin awkwardly. ?According to his perception of the morality of the middle school, this education conference is absolutely inseparable from the May 4th Medal. The ceremony last night was not broadcast live, but there must be video clips. One day is enough to spread the word... As college students, there is no TV in the dormitory, and it is impossible to read newspapers all day long, so it is normal for these people not to know that Chang Haonan won the award. Of course, we should know it soon. After all, Chang Haonan did not go to the Laoshizi Conference with several other people. I educate myself, so there is no need. After returning home, the first thing Chang Haonan did was naturally to call home. The phone only rang once and was picked up. Brother, you are really in the news this time! Chang Jiayao''s voice made Chang Haonan couldn''t help but hold the receiver slightly further away. Well, yes, I won an award. I originally thought about telling you about it last night, but it was already late at night when I got home, and I got up late today, so I put it off until now. Its okay, just treat it as a surprise for us. Chang Jiayao on the other end of the phone is very open-minded about this: When my mother came to me and told me about this at noon today, I still didnt believe it Halfway through speaking, I heard Zhou Li''s voice from the distance again. She must have turned on the speakerphone: "When you came back during the Chinese New Year, we just felt that you were doing well outside, but it turned out that you were so promising. I just arrived at the work this morning, and I picked up a few newspapers. The six of you were all on them. Reports After get off work tonight, all the county leaders came directly to our house to offer condolences, and your father, the director of their municipal bureau personally called their office and said they would give them a bonus..." ??Neither Zhou Li nor Chang Yuanchao showed off this matter when they were outside, but after all, their son is so powerful, they will definitely be happy after returning home. ??And because I have been holding it in for a whole day, my excitement may be higher than when I first learned the news in the morning. Xiaonan is still awesome... he is worthy of being my son, Chang Yuanchao... Chang Yuanchao''s voice sounded a little drunk. He might have drank some during dinner. Normally, Zhou Li would never allow him to drink at home, but today''s situation was special and she made an exception. After studying abroad for so many years, I didnt spend much money at home..." Because Chang Yuanchao had made meritorious service while on the front line before, Chang Haonan and Chang Jiayao were both qualified to attend the police academy with very low scores in the college entrance examination, which was regarded as a kind of care for the children of those who had made meritorious service. ?However, this kind of quota is limited, so if the child at home does well in the exam and does not occupy it, the bureau will issue a bonus. Probably it means "Thank you for leaving opportunities to your children for those who need them more." ?Judging from Chang Haonans score in the college entrance examination, he naturally got the top grade, 3,000 yuan. Including this time, it does cover a large part of the expenses in the previous three years. Also, the organization asked your dad if he wanted to be transferred to the city bureau, but he refused. This old man is really..." Before Zhou Li could finish her complaint, she was interrupted by Chang Yuanchao: I went to the municipal bureau and became my deputy section chief. It was no big deal. Besides, I asked you if you wanted to go to the province to teach in key areas and you didnt go either..." Obviously, the old couple had a good sense of what they could and should not take. ?The former was not angry at all before he finished speaking. He waited for his husband to finish speaking before explaining on the phone: "Xiao Nan, that''s all your dad and I are capable of. If this wealth is given to us, we won''t be able to keep it. Let me save the key points. What if the students are better than me? What a class we teach. It doesnt matter if you have the worst grades and Im being laughed at. If youve delayed other peoples children, theyll stab you in the back..." Chang Haonan originally wanted to speak out to comfort his mother, but after thinking about his very poor Chinese language performance in high school, he really didn''t have any position to say it. ?Zhou Li didnt give him a chance to organize his words, and then continued: "In addition, I think that we have so many people at home who come to express condolences and report the good news. The impact of this award should be great. You are more capable than the two of us, but you must also pay attention to it outside. The more proud you are, the less likely you are to Get carried away, take the rewards given to you by the organization as you should, but some of them are more personal, so you have to think carefully..." As people who have experienced special times, Zhou Li and Chang Yuanchao are quite sensitive in this regard. ?Of course they actually underestimated their sons influence. ?Before winning the award, he had already had a pleasant chat with leaders at the Science and Technology Committee and the Science and Technology Committee... Dont worry, Mom, Ive got it figured out. In order to reassure Zhou Li and consider confidentiality issues, Chang Haonan did not say too much about his specific situation, but just agreed: This time, the school and the city have given out a lot of bonuses. When I go home during the Chinese New Year this year, I will change your house to a house with better conditions. Tongzilou is too inconvenient..." This was an idea he had during the Chinese New Year this year, but at that time it was really not easy to explain how so much money came from, so he had to give it up. Now that we have the name of the May 4th Medal, it can be used to explain it. "Nonsense, we have two iron rice bowls, and you still need to support us? Besides, your sister has passed the physical examination for flying. If she does go to flight school, it will be sponsored by the state. It won''t cost a penny from the family. If you have money, you can save it." Get up, prepare to buy a house and marry a wife then..." Mom, I havent reached the legal age for marriage yet ?Chang Haonan replied somewhat helplessly. Although everyone generally says that he is less than 23 years old now, this is because northern areas are used to counting false years. In fact, Chang Haonan is still under 22 years old and cannot get married... Get ready first. If you really have a good eye on things like marriage, it will be very fast, like your dad and I..." When the topic came to this field, Chang Haonan knew that it was time to end todays call. (End of this chapter) Chapter 305 Inspiration has arrived! Chapter 305 Inspiration is here! At the same time that Chang Haonan was walking home just now. On the other side, in the college auditorium, the graduate education conference organized by Tang Lintian and held simultaneously by all colleges in the school is about to begin. The 1990s are no longer what they were 30 or 40 years ago. On the one hand, people''s hearts are floating, and not many people are willing to listen to these sermons. On the other hand, as the older generation gradually retires, the level of ideological education work has declined sharply. In short, basically few people are willing to participate in activities with this theme. Whats more, its only for graduates. ??Some students who have found jobs in private companies around the capital have already started internships at this time. ??Had it not been for the worry about graduation certificates, I am afraid that not even half of the people present might have attended. ?Even if we force people to come here, most peoples attention is not on the stage at all. ??Its true that I dont have a smartphone to play with at this time, but its actually difficult to control things like secretly reading a novel down there. ??So the counselor in charge of hosting the meeting just maintained order for a while and announced the start of the meeting. According to the normal procedure, the leader present should give a speech first. But the situation today is a little different. The lights in the venue quickly dimmed. ?This made the students who were looking down at the novel feel a little dissatisfied. But a projector soon came on. Immediately afterwards, an advertisement sound came from the surrounding speakers. Easily identify authenticity and enjoy the real Liuliangye It can both supplement calcium and help calcium absorption, Longmu Bone Strengthening Granules, Jiangcheng Minjian Nearly everyone looked up in surprise. Apparently, a TV program is playing on the curtain. Watching TV is still a relatively mainstream form of entertainment in this era. It naturally attracts everyones attention. ?However, some people immediately saw that this was CCTVs advertising content before Xinwen Lianbo. Hey, isnt this CCTV 1 Many people suddenly became less interested. It took you a long time to force everyone to come here just to watch todays news broadcast? MD, its better to let us find a place to look by ourselves. I even ran back from my unit in Miyun today... ??The teacher who presided over the meeting had no choice but to turn on the microphone and speak a few words, and then he barely calmed down the various resentments in the stands. ?Although even watching the news is better than listening to a few old men reading on the stage, it can only be said that the benefits are very limited. A few minutes later, a picture of a watch with a gold frame and a white dial appeared on the screen. Fiyta will tell you the time Then there is a piece of familiar music and the hosts familiar announcement. A lot of people have begun to whisper under the cover of the speakers. Yesterday, with the approval of the ZGZY and the Communist Youth League ZY, the newly established Chinese Youth May 4th Medal completed its first selection. The six young people who finally won the award were the squad leader of the Eighth Company of the Special Security Regiment of the Shanghai Garrison District of the Jinling Military Region, and the public award..." Li Bin, worker and section chief of Shanghai Hydraulic Pump Factory Students from the School of Aeronautical Science and Engineering, Beijing University of Aeronautics and Astronautics ??The moment Chang Haonan''s name and the unit he belonged to were read out, there was a moment of silence in about half of the venue. The host has just said that this is the first issue of a series of special reports. It mainly introduces the background and significance of the establishment of the May 4th Medal, as well as the selection method. Therefore, it does not elaborate on the deeds of the winners. But its no longer important. ??Although everyone sitting in the venue has little social experience, their IQs must be high to be admitted to Beijing Airlines. It is not difficult to feel the magnitude of this honor from the words used by the host to introduce the May 4th Medal. The School of Aeronautical Science and Engineering occupies almost half of Beijing Airlines, and because of Chang Haonans extraordinary performance in the aircraft design course last year, basically everyone in the entire school has some impression of him. People from other majors, or who are not familiar with Chang Haonan, dont feel deeply about it. At most, they express emotion that there is such an awesome person around them. But these people in the same class or even the same dormitory were shocked in a completely different way. Liang Hao, who had been chatting with a few people next to him just now, suddenly widened his eyes and raised his head suddenly. The words written at the bottom of the screen proved that he had heard correctly. No, wait... Wu Yifan next to him was even more unbelievable. After all, the two had met a few years ago, and at that time he had no idea that his roommate was already so awesome. Is this Chang Haonan the Chang Haonan we know? "There is no other person with this name in our profession..." Liu Ran raised his hand to straighten his hair, and almost involuntarily looked at Huang Zhiqiang, who was sitting alone in a corner. The distance is a bit far, so I cant see the latters expression clearly. After the cheating in course design was exposed, several people in the same group basically cut off contact with Huang Zhiqiang. Even Liu Ran, who lives in the same dormitory, can only see each other when sleeping at night. He still remembered that just a year ago, the two people seemed to be competing for the same thing, but now... It seems that we are no longer in the same world. No, thats not right. A year later, Liu Ran suddenly realized. ??If you carefully recall the past incident, it was actually Huang Zhiqiang who was doing the trouble from beginning to end, while Chang Haonan actually didn''t even show a gesture of fighting back. In other words, the latter may not even know that someone is doing some small tricks behind the scenes from beginning to end. ??No one has exerted any strength at all, so you just trapped yourself in a cocoon and killed yourself. ?Thinking of this, he smacked his lips with emotion. Obviously, the two did not compete in this year. They were not on the same starting line from the beginning... Wu Yifan, who was sitting next to him, felt happy after the initial shock. NND, we have to find a way to invite this kid out to celebrate He thought in his mind. ?In the past few years, although the two have different interests, they have maintained a pretty good personal relationship. About a year ago, we collaborated on a business and made a small profit. ?Wu Yifan, who has been working hard in the business world for several years, knows very well that in matters such as building relationships, icing on the cake is definitely not as good as providing help when the time is right. ?Hence, although I didnt have any utilitarian ideas at the time, from the perspective of hindsight, it was definitely a successful investment in favors. Now Chang Haonan can be said to have ascended and become an immortal on the spot. For him, there are absolutely only advantages and no disadvantages. ? Even if it seems that you dont need the other party for anything now, your connections must have been established in advance, and the more, the better. It will be too late if you dont think of it until you are using it. Compared with this, Zhou Shuwan, who was sitting in the other row, was relatively calm. ?After completing his postgraduate studies, he also started working on projects with his mentor. Although he was always a junior, he had heard about Chang Haonans deeds. ?Especially the recent negotiations with the European side, which even made Airbus prepare to purchase the Huaxia subsystem for the first time, is equivalent to a shot in the arm for all China Airlines people. ?So its not a surprise to win such a grand prize. As for jealousy, there is no such thing. Generally speaking, people only feel this way about people who are slightly stronger than themselves. When doing group work last year, Zhou Shuwan had already realized the gap between the two. To put it a bit exaggerated, it is the distance between man and God. Better than normal. ?The sudden memory of what happened last year also made him involuntarily cast his eyes on Zhang Man, who was sitting not far away. After that dinner, Zhou Shuwan finally realized that the other party actually didn''t like him. But things like feelings are not so easy to let go of. In short, there are bound to be many people who have trouble falling asleep tonight for various reasons. ?Of course this does not include Chang Haonan himself. For him, after the CCTV interview ended in the afternoon, the matter was over. ?Of course, the 60,000 yuan bonus that has not yet arrived is a small sum, but he believes that Tang Lintian cannot lie about this kind of thing. There is nothing to worry about. Free time is always short. After two days of rest, Chang Haonan once again devoted himself to the compilation of the textbook. In the pain of Teacher Liu Hongbo, the theoretical experience of the system increased slowly at a rate of dozens of points every day, and soon approached the critical point of upgrade. ?However, what he never expected was that it was not the textbook that ultimately led to this upgrade, but a paper he accidentally saw. A thesis in applied mathematics. Translated into Chinese, it is "Research on Dimensionality Reduction of Strongly Nonlinear Partial Differential Equations Based on Variable Separation". First plus one more, not in the 5th more of the alliance, it should be sent (End of this chapter) Chapter 306 Dimensionality reduction problem of nonlinear partial differential equations Chapter 306 Dimensionality reduction problem of nonlinear partial differential equations ??Although Chang Haonan''s award has given the school a lot more publicity work to do, Tang Lintian will naturally not forget what he promised a few days ago. ?Within a few days of effort, the external network connected to the school could already access several of the more mainstream academic databases. About half a year ago, when Chang Haonan began to seriously consider writing a new simulation modeling software, he realized very clearly that the study of multiphysics, especially strongly coupled multiphysics problems, is essentially a study of nonlinear partial differentials. Solution of systems of equations. But when this kind of thing is implemented in the engineering field, it is often not as simple as a sentence. Especially considering that the computing speed of todays supercomputers is not optimistic. There is no way to obtain analytical solutions for most partial differential equations. At least in a short period of time, we can only work on numerical solutions. Many solutions that are very aesthetic in mathematics may not be practical. Traditionally, the dimensionality reduction of dynamic systems of nonlinear partial differential equations mainly uses methods based on variable discretization, typically such as the finite element method, the finite volume method and the finite difference method, which can be called the three masters in this field. But there are not no other ideas. For example, Chang Haonan accidentally saw this paper when he was resting in the computer room one night. ??Although the article is in the field of applied mathematics, it was published in a seemingly unrelated journal in the field of chemical engineering. ChemicalEngineeringJournal A magazine that would be considered famous more than ten years later, but at this time it was just a humble magazine that had just been launched. The reason why he is attracted to click in and download it at a speed of several Kb per second is mainly because the summary is so attractive. The current commonly used finite difference method and finite element method can only obtain high-dimensional ordinary differential equation systems for dimensionality reduction of nonlinear partial differential equation dynamic systems. In the past forty years, system reduction based on variable separation has become more and more difficult. The dimensional method has been developed rapidly. Under certain conditions, it can avoid some essential problems caused by the spatial discretization method and reduce a type of nonlinear partial differential equation dynamic system to a lower dimension, which facilitates rapid analysis, calculation and optimization. And the implementation of active controllers can be applied to numerical analysis of common mechanical and thermal coupling problems in the field of chemical engineering..." Although the specific issues involved have nothing to do with aircraft design, the mechanical and thermal coupling mentioned in it is originally the most basic and most urgent issue that Chang Haonan currently faces. ?This excerpt simply spoke to his heart. He believed that when Lu Yuying saw his paper for the first time in Rongcheng a few months ago, the feeling of transparency in his heart was nothing more than this. A few minutes of download time has never been so long. Chang Haonan stared at the progress bar on the screen and clicked on the document almost as soon as the download was completed. "It is well known that any continuous function can be approximately represented by the expansion of the Fourier series sequence. Based on the above principles, the space-time affinity variables in nonlinear partial differential equations can be expanded into an infinite-dimensional space basis function set and its corresponding The form of the series sum of time coefficients is: ?X(z,t)=(i=1,)Ʀi(z)xi(t) where xi(t) represents the time coefficient corresponding to each basis function i(z)..." Its really basic. Space-time variable separation technology is not a new thing. It can be found in any mathematical physics method or similar textbook. However, it is generally believed that partial differential equations suitable for using the separation variable method should have certain forms and characteristics, such as linear and homogeneous. , separable, coefficients only depend on one variable, etc., which greatly limits the application of such methods. ?So Chang Haonan quickly skipped this part and looked directly at the third section, which is often the first section of the text: In order to explain the dimensionality reduction method of dynamic systems of nonlinear partial differential equations in detail and clearly, this section uses the parabolic nonlinear partial differential equation system as the object for explanation... Coming! His spirits perked up when he saw the content he was interested in, and even the slight sleepiness he felt just now disappeared instantly. The boundary conditions and initial conditions are respectively: where x(z, t) represents the space-time state variable, and is a continuous function on the infinite-dimensional Hilbert space defined on the space region [a, b]. Represents the spatial coordinates, z[a, b] represents the spatial coordinates, which is the subspace on the real number domain defined by the process, t[0,) represents the time variable Finally, the expression form of the above nonlinear partial differential equation system in Hilbert space H([a, b]) can be obtained: x(z,t)/t=Ax(z,t)+Bu(z,t)+(x,z,t) x(z0)=x0(z) ??Two simulation examples are given below, namely the dimensionless Kuramoto-Sivashinsky equation in one-dimensional space, and the temperature and pressure field of a non-isothermal tubular reactor... "Well...there''s something..." Chang Haonan saw the back and nodded with understanding. In general. He took out a piece of paper from the printer next to him and began to summarize to himself, First, select an appropriate space orthogonal basis function and use space-time separation technology to separate the space-time variables of the nonlinear partial differential equation dynamic system, that is, expand the space-time affinity variables of the system on the selected or obtained orthogonal space basis function , substitute the expansion into the original system and combine it with the nonlinear Galerkin method..." An hour passed quickly while he was writing and drawing. ??Although the object used to illustrate the theory in the article is only a very simple parabolic system, the two application examples cited later are indeed quite good and worthy of the author''s boast in the abstract. This article is even worthy of submission to a higher-impact journal. The reason why it appears here is most likely because the author and the editor-in-chief are from the same school and received an invitation to submit a manuscript. In fact, at the end of the summary, Chang Haonan also discovered parts that the author himself had not written. This method in the article can not only be applied to heat transfer and flow field calculations, but with slight modifications, it can even be used to deal with mass transfer problems and the chemical reaction process itself. In other words, all the characteristics involved in the chemical production process can be included. ?Of course, the fact that it was not written down may not mean that the author did not discover it. It is possible that he was saving something to prepare for another article... But...there are still problems. ?Chang Haonan looked at the three pieces of draft paper in front of him that were already filled with writing. Although it can be applied in a wide range of fields, it does not mean that the method mentioned in this article is a master key and can be directly transferred to the scene Chang Haonan needs. "Using eigenfunctions as spatial basis functions combined with the weighted residual method to reduce the dimensionality of the nonlinear partial differential equation dynamic system can obtain a finite-dimensional ordinary differential equation dynamic system to approximate the infinite-dimensional dynamics of the original system, but essentially linear methods are still used Approximation is still not enough for real strongly nonlinear problems. However, if other spatial basis functions are used in the dimensionality reduction process, such as Fourier sequence functions and orthogonal basis functions, it may be dynamically related to nonlinear partial differential equations. The characteristics of the system itself are irrelevant ?Thinking of this, he turned his head and glanced at another room next to him where a supercomputer was placed. ?There is of course no problem in theory, but if we really start to calculate... Since the computing center that I am responsible for has just been opened, there are not many projects currently using it. However, the load on this supercomputer has been reduced to a very high level. ??If we leave it ten years later, it may not be impossible to calculate it according to the ideas in the article, but with the current domestic supercomputing level, I am afraid it will take several years to calculate the force-thermal-electric coupling level of the phased array radar array... Whenever I have the time, I will create a test version. It will definitely not work. What if we use the balanced truncation method or the optimization method... The pen tip in Chang Haonan''s hand began to slide on the paper again. Soon, the fourth and fifth pages of draft paper were also filled with writing. The sound of creaking equipment was heard in the machine room. The moon outside the window climbed from the horizon to the mid-air, then gradually set, and finally ushered in a rising sun. "I see." (End of this chapter) Chapter 307 Theoretical level LV3, try your best! Chapter 307 Theoretical level LV3, a small test of your edge! ?Just when he had just used up the last piece of paper in the printer''s paper tray, Chang Haonan finally caught in his hands the seemingly absent thoughts that had been in his mind before. ?After finishing everything on paper, looking back, he realized that it was all so obvious. ?Most of the content has actually been done by predecessors, and has even remained in textbooks for dozens or hundreds of years. Very lucky, he was the one who finally found this last and most important piece of the puzzle. ?Of course, from a purely mathematical perspective, there are still many loopholes. Even if it is published as a paper in a journal in the field of mathematics, it may not be approved. Because it contains a lot of his own experience summaries and even conjectures. But thats not important. For the field of mathematics, all results must be rigorous. The review process of an academic paper is likely to take several months or even longer without touching on the theoretical framework of the paper''s topic. However, for the computer field, especially the computer field in the 1990s, a few months is almost equivalent to the development from prehistory to modern times. How can it be possible to wait for you to slowly review it. So it is not uncommon to apply immature ideas first and then gradually improve them. ??As for what to do if a problem is discovered during the application process... ?Wouldnt that be better? Programs are originally made up of **** and bugs. If problems are discovered, they should be fixed. Perhaps some new breakthroughs can be made in the process of revision. A certain station A was established and developed due to this situation. In the final analysis, Chang Haonan is currently in the field of applied science, not basic science. ?The results he achieved this time, if fully expanded, would almost be enough to bring the field of engineering computing into a new world. After suddenly relaxing, a feeling of sleepiness suddenly came over me. ?Even though he had "stored" a period of sleep before, the continuous rotation of this period, combined with the all-nighter just now, still put him in a weak state. Under normal circumstances, he should take a nap and wait until he is well rested before continuing his work. But Chang Haonan is different. Since we already have the idea of ??forming a closed loop, it means... Can be hacked. ?So he opened the system panel. Then, I captured the changes in an instant... Scientific Research Points: 1000 Theoretical level: LV3 (8800/100000) Engineering experience: LV2 (4000/10000) Management ability: LV2 (3000/10000) Comprehensive ability: LV2 Projects in progress: 0 Projects that can be carried out: 2 ?Having been stuck at the theoretical level of LV2 for a year, I was upgraded unknowingly in one night. And after upgrading, 8800 experience points are still maintained. In other words, the round of brainstorming just now directly brought up to 10,000 points of theoretical experience. ?This may be the reason why he suddenly had a flash of inspiration at a certain moment. Just because this result only exists in his mind and has no obvious impact, the number of scientific research points has only increased by a mere 100 points. But dont be in a hurry. ?Chang Haonan tried to get the system to start a project with his own ideas. Of course, it is impossible to start writing simulation modeling software in one step - that is not a task that can be completed by one person. Even if the system directly outputs the results, typing the code by himself is enough to cause tenosynovitis. Just trying to further improve this method to adapt to more types of partial differential equations. As expected, passed smoothly. And it only costs 50 research points. Generally speaking, the higher the degree of completion of the ideas he inputs into the system, the fewer things he needs to do with the help of the system and the fewer scientific research points he consumes. 50 points, indicating that although the subsequent work is complicated, it actually does not involve too much creative part. When Chang Haonan finally walked out of the room, everyone in the computing center was startled by his messy hair, vicissitudes of life, stubble, and slightly pale face. ?Especially Tang Lintian, who happened to be here waiting for the results. Just kidding, his plan to take the school to a new level depends entirely on the man in front of him. If he gets tired, he won''t have anywhere to cry. "Xiao Chang, what are you..." Speaking, he quickly took two steps forward and supported Chang Haonan, who was a little unsteady in his steps. What have you been doing? Nothing. I spent two days studying the dimensionality reduction problem of nonlinear partial differential equations and got some results, so I forgot about it. The two of them sat on a bench together in the lobby of the computing center. Then you wont even be able to eat or drink water these days ?Tang Lintian has already begun to think about whether to call an ambulance. Of course thats impossible. I have bottled water and biscuits in my office, but I just didnt sleep much Chang Haonan rubbed the sore back of his neck and replied. In fact, his whole body is a little sore now. In the end, Tang Lintian was still a little worried, so he called an assistant over, and the two of them took him home together, and even gave him a meal from the canteen. One day later. Beijing Airlines, in a conference room in the aircraft building. ?Du Yishan, Liu Zhenxiang, Tang Lintian and Liu Hongbo sat together and listened to Chang Haonan in front of him explaining the new method he had conceived on the blackboard. ?Of course, considering Chang Haonans current level in the field of numerical computing, this obviously cannot be regarded as a defense. ??There are few people left who can be judges for his defense. It can only be said to be a small-scale report. ?After Chang Haonan wrote the last symbol on the four blackboards, he turned around and was greeted by silence. Fortunately, excluding the confused Liu Hongbo, the other three people were all looking down at their notebooks, obviously understanding at least the main part of it. Xiao Chang, I kind of understand your idea...but with all due respect, if you want to publish a paper, Im afraid it will be difficult to publish it in a journal with a high impact factor... ?Although Tang Lintian is not an academician, he is actually the earliest to come into contact with the field of numerical computing, so he is the first to raise his head. ?According to the principles set by Chang Haonan and others, this kind of methodological and tool content that does not involve specific projects should still be published in order to improve the efficiency of diffusion and application. Just like the previous paper on differential evolution algorithm. ?Although the whole world can see it, the ones who benefit the most are obviously the Chinese side where Chang Haonan and Xu Yang are located. Far more cost-effective than holding it in your hand. But Chang Haonan nodded: I know that there is too much empirical content and speculation, and it is difficult to pass the strict review process, so this time, I am not planning to publish it. Then what do you mean I am going to write a brand new software to deal with the simulation modeling problems of strongly coupled multi-physics fields, and the set of things on the blackboard is one of the tools that this software will use. This is the first time that the latter has expressed his idea of ??writing software on a formal occasion. "But this is a big project, much bigger than the aircraft icing simulation software I worked with Jincheng University before. Moreover, engineering software is not a one-time deal. It needs continuous optimization and upgrades in the future, so I need a A complete project team must be sustainable for a long time, as well as funds and servers. ?Du Yishan and Liu Zhenxiang also raised their heads and looked at each other. If this is the case, Xiao Chang, the traditional research group model may not be suitable. After all, Liu Zhenxiang was experienced and quickly realized what Chang Haonan needed. You need a company, a company that is supported by the school, the Science and Technology Commission, or even higher-level units. A company This is something Chang Haonan has not thought about. He does not understand business management and the various laws involved, but as Liu Zhenxiang said, this is the most appropriate method for a software that requires long-term maintenance. Seeing Chang Haonan who was a little undecided, the latter continued: "But don''t worry about the company''s affairs. I suggest you find a project first, attach yourself to it, and then take the lead in completing it, just like how you used the turbojet 14 to rewrite our country''s aviation standards. Prove to the superiors that you proposed The value of this method will be less, and more resources will be obtained. Do you have any goals? ?This problem is much simpler, and Chang Haonan even had a plan in mind. "This method can handle the coupling effect of mechanical and thermal dual physical fields. You can contact the Chengdu 611 Institute. I have promised them a long time ago to apply an active stability control technology that can reduce the risk of engine surge on Project 10, which happens to involve to related issues. (End of this chapter) Chapter 308 Cutting-edge technology, but not cutting Chapter 308 Cutting-edge technology, but not cutting-edge enough ?? Lu Yuying was originally promised to do active stability control and surge prediction for the J-10. It was actually before the Spring Festival this year. However, due to various unexpected events after the new year, Chang Haonan has never been able to fulfill his promise. ?Furthermore, since Lu Yuying is not actually involved in Project No. 10, this matter has not yet started until now. It still needs to be communicated with Song Wencong or Xue Chishou who are actually responsible for Project No. 10. ?Of course, with Chang Haonan''s current popularity and influence, there is no need for Du Yishan to do this for him like he did a year ago. After the meeting, he quickly dialed the number of the 611 institute. Of course, it was impossible for the operator on the other side to decide on such an important matter. Therefore, after explaining his identity and purpose of coming, the call was transferred several times before a young male voice sounded on the receiver again: Chang Gong, you are such a busy person, why dont you think of contacting us. If Mr. Lu hadnt mentioned this when I met you in Yanliang, we would have thought that you would let us go. ?Chang Haonan quickly recognized the identity of the person who answered the call. Deputy chief designer of Project No. 10, Yang Wei. When he first saw the J-10 that had entered the final assembly state at the 132 Factory in Rongcheng, the two had met once before. "How can I? I always keep my word, but there are too many things going on during this time, and I can''t get away from it." Facing the other partys half-joking ridicule, Chang Haonan also chose a more relaxed way to respond, "This is not something I just promised you when I had some free time, and the first thing I thought of was to make a phone call." The series of disturbances caused by Chang Haonan in the past two months have basically shocked the entire Science and Technology Commission system. As the deputy chief engineer of the project, Yang Wei naturally cannot know anything about it, so he didn''t really have any dissatisfaction just now, just as a Just a few jokes between acquaintances. That''s right, although the two had only met once and the conversation lasted less than five minutes, in Yang Wei''s heart, Chang Haonan had already been classified as an "acquaintance". For a super genius like him, the depth of friendship is not mainly determined by the length of time they have known each other, but by seeking a compatibility in spirit and ability. Coincidentally, Chang Haonan is one of the few people who can meet his requirements. ?Furthermore, although the age difference between the two is more than ten years, it is not to the extent of being separated by a generation, and it is easier to get along with each other. "It doesn''t matter, just remember us. The final assembly of the No. 01 prototype of Project 10 has been completed. We are conducting system inspections of the entire machine and preparing for a series of ground tests before the first flight. We need you to use your expertise. When helping to define testing and test flight conditions. Obviously, the progress of Project No. 10 has been rapid during this period, and the positions of Song Wenchong, Yang Wei and even Chang Haonan have been arranged. ?Just wait for him to pass before starting work. Its just that this time, Im afraid they wont be able to do what they want right away. Chang Haonan directly stated his intention: Gong Yang, Im afraid we have to put the matter of determining the test conditions on hold for a while. Im contacting you today because I have a new idea that can greatly improve the stability of aeroengines. Aerodynamic instability control of aircraft engines? ?Yang Wei over there was stunned for a moment after hearing Chang Haonan''s answer. But in this regard, we have made some restrictions in the flight control... As a third-generation fighter jet that uses all-digital fly-by-wire, the J-10 naturally considered the safety risks caused by the failure of a single-engine aircraft engine at the beginning of its design, so it was not unprepared in this regard. But only halfway through speaking, Yang Wei''s voice gradually became quieter. Nothing else, the person on the phone who suggested new ideas was Chang Haonan after all Even though he had never worked with the latter before, Yang Wei had basically heard of the names of people, the shadows of trees, and various deeds about this young genius. In short, what would allow such a person to make a special phone call to contact me would not be the traditional aviation engine instability control strategy. But for more specific things, it is impossible to talk on the phone. So he changed the subject: Well, Im afraid its hard to explain the technical details over the phone. Ill arrange a business trip to the capital as soon as possible to listen to your thoughts. How about that? This reflects the change in Chang Haonan''s current status. ? A year ago, in this case, the only possibility was that he would fly over to find someone else. How could it be possible for his deputy chief designer to make a special trip for one of his ideas? But now, Yang Wei made this decision almost naturally. ?Of course, this is not because Chang Haonan meant to put on airs. In fact, the performance of the new supercomputer assigned to him by the school is really good, and 611 schools do not have the same level of equipment... In short, it smells really good! As a top engineer, Yang Wei is naturally very efficient in his work. After only two days, he arranged his work in Rongcheng and came to Beijing Airlines accompanied by several entourage. The two met in a conference room that Tang Lintian had arranged with a high enough level of confidentiality. Chang Gong, nice to meet you again. Me too. The two exchanged a few brief greetings and then got straight to the point. Then let me introduce some relevant ideas about active control of compressor instability. ?Chang Haonan opened the laptop on the table and the projector not far away. Then a blank picture appeared on the curtain hanging on the wall That''s right, a year later, he made a PPT using the ancient version of office. ?Before rebirth, if Chang Haonan was asked to make a list of the things he hated most, then doing PPT would definitely be in the top five. But after returning to 1997, Chang Haonan thought about it and found that nothing could replace the role of PPT in this situation. Because with a large number of charts, handwriting will only require more work, and it is not as intuitive as PPT. According to my personal understanding, at present, the internationally advanced aviation engine instability control strategy is based on the instability control line. As Chang Haonan clicked the mouse, an engine operating curve chart appeared on the screen. Since the instability boundary is highly uncertain and will be affected by many factors such as flight attitude, environmental factors, aging of engine parts, etc., in order to ensure that the engine always operates within a safe range, a rule is determined during the design stage of the engine control system. The fixed boundary, that is, the instability control line, takes into account the stability margin loss of the engine under the worst operating environment and can ensure that the engine is away from aerodynamic instability. " When the pilot determines that the aircraft is at risk of aerodynamic instability, or when the sensor detects that the engine has crossed the instability control line and sends a reminder to the pilot, a short-term stability augmentation system can be manually activated to reduce fuel supply within a specified period of time. By adjusting the exhaust valve, adjustable guide and nozzle area, the engines working condition can be kept away from the unstable operating line. ?When this accompanying picture was released and after listening to Chang Haonan''s short two-sentence summary, Yang Wei knew that his trip would not be in vain. Because the other party got their current plan right as soon as they came up. He nodded: "Yes, this is the instability recovery control system we plan to apply to the J-10. Of course, we still need to cooperate with the Rulika Design Bureau that provides power to improve the aircraft''s full authority digital electronic control (FADEC) system. , this should also be the most cutting-edge stability control technology currently used in third-and-a-half-generation fighter jets abroad. If you compare the situation in the past, it is indeed very cutting-edge. ?After hearing Yang Weis answer, Chang Haonan showed a smile: But, its not cutting-edge enough. (End of this chapter) Chapter 309 Boss Yang Wei’s shock Chapter 309 Boss Yang Weis shock Having said this, Chang Haonan stood up directly, came to the side of the curtain, and said while gesturing on the picture: In fact, we can see from this picture that the closer the area is to the instability boundary, the higher the compressor boost ratio. The higher the boost ratio and the higher the efficiency, the higher the performance of the engine. However, the existence of the instability control line makes it impossible for the engine to operate in the area between the instability boundary and the instability control line. However, most of the time, the engine can operate stably in this area. It can be seen that the existence of the instability control line actually exists. This prevents the engine''s performance from being fully utilized." "The short-term stability augmentation system is a form of open-loop control and requires the pilot to manually turn it on. This means that pilots with relatively conservative flying habits may activate the system before the engine actually reaches the instability control line, further reducing the engine speed. Performance potential, and pilots with aggressive flying habits may not turn on this system until the engine has entered a state of aerodynamic instability. Often, at this time, the engine''s working condition has begun to be damaged and enter an irrecoverable stall, which greatly affects flight safety. discount." After explaining the shortcomings of this traditional method, he sat back in his seat and clicked the mouse to release the next page of PPT: So when I was working on the 83rd Project last year, I began to consider whether we could use a more precise method that would have less impact on engine performance to control engine stability. Finally, I summarized two new methods not long ago. The methods are stability seeking control and active surge control. "The former integrates the engine stability check into the engine''s control system and determines the instability control line position through real-time assessment of engine stability, rather than the worst-case scenario assumed during design, allowing the control system to minimize the stability margin. , thereby improving engine performance. And the latter... Before introducing active stability control, please allow me to mention a brand-new concept named by myselfsurge precursor. Surge precursor ??Yang Wei''s eyes seemed to flash with a light: You want to predict surge in real time? ?It can only be said that the boss is the boss. Although he was facing a completely new concept, he still realized what Chang Haonan was going to do in the shortest time. The few people who followed Yang Wei immediately showed expressions that were almost horrified. The essence of surge is a positive feedback self-excited process. That is to say, once a certain part starts to surge, unless it is stopped and restarted immediately, the surge will be "infected" to the entire system in a very short time. inside the engine and cause irreparable damage. In other words, for traditional methods, when you detect abnormal engine data, it is actually too late. ??It is several orders of magnitude more difficult to accurately predict surge than to accurately predict the weather! In fact, even after surge has occurred, it is quite difficult to reversely find the operating point that induces surge from the data recorded by the engine control system. Chang Haonan himself should have some experience of this. So ??How much knowledge of fluid mechanics do you need to dare to boast that you can predict surge in real time? Thats right. Facing Yang Weis question, Chang Haonan just nodded lightly and replaced it with another picture: After analyzing and summarizing a series of surge failure data that occurred on the J-8 and J-H7 aircraft, I noticed that during the stall initiation process before the surge occurred, there were some small amplitude The disturbance waves are formed from the stable flow field, and their influence is very weak. It is almost impossible for the pilot to intuitively feel it. However, if there is no interference with the working state of the engine at this time, these disturbance waves will continue to strengthen and start at the beginning. At the end of the process, it turns into a rotational stall and then develops into a surge, so I call these disturbance waves a surge precursor. Therefore, my idea is to detect these surge precursors through a series of sensors and waveform processing technology, and then add additional disturbances to the flow field to suppress the formation or development of stall precursor waves and delay the occurrence of rotational stall. When Chang Haonan talked about this, the other people looked at him as if they were looking at a monster. It is equivalent to a person saying that I not only want to accurately predict the weather at a certain time six months from now, but I also want to control the weather at this time through technical means. ?This theory sounds a bit like extreme tightrope walking, let alone its direct application in the engineering field. Safety margin is almost the core element of engineering design, but Chang Haonan directly stated that he wanted to keep the safety margin to the minimum while ensuring the highest safety... ??I can only take a breath of air. As for the boss, he once again showed how extraordinary he is. ?Yang Wei touched his chin and pondered for about half a minute, and the first reply he gave was: I have actually done some research on this surge prediction before. ?This time it was Chang Haonan''s turn to be shocked. "You are too young, so you may not know, but many elderly people in the 611 Institute know that around the 1990s, because they were all engaged in civilian industry, I didn''t think it was interesting, so I very seriously considered working abroad. " ?Chang Haonan was even more shocked. ?This TM must be retained, otherwise the loss will be incalculable... "Anyway, during that time, I paid attention to some cutting-edge research done by foreign universities, which was... quite far from engineering. Two professors named Moore and Glazer proposed an axial flow compressor entering a rotating stall. The state model includes three physical quantities: flow coefficient, pressure coefficient and rotational stall amplitude, which is generally called the MG model. " What was said later did not exceed Chang Haonan''s expectations. ?This MG model is basically the starting point for all surge prediction research. After a short pause, Yang Wei continued: "This model is relatively easy to use in academic research and small experiments, but when it comes to the engineering field, three physical quantities bring three systems of partial differential equations, and the degree of nonlinearity is very high. I once asked a friend who specializes in mathematics After consultation, he said that I could use one called..." Galerkin method? All this has entered Chang Haonan''s rhythm. "Yes, the Galerkin method, and then select a cubic curve as the characteristic curve, convert the system of partial differential equations into a system of ordinary differential equations and then solve it. But I personally tried it and found that the amount of calculations involved is unimaginable. Moreover, the accuracy of the final results is not high. In short, there is no application potential so far..." After listening to this introduction, Chang Haonan felt a little ashamed and said to himself that you cant call this a little research at all. You have already done half of my work... ?But on the surface, he just coughed twice: Actually, the MG model you just mentioned is the starting point of my entire idea. Its just that I have recently produced some research results on numerical solutions to strongly nonlinear partial differential equations, which can be used in the optimization and subsequent solution process of the MG model. ??Yang Wei, who had been calm and composed just now, finally couldn''t hold himself any longer. Do you still have research on mathematics? (End of this chapter) Chapter 310 Two plans of J-10! (Add 15 more updates for the leader [the free agent]) Chapter 310 Two plans for the J-10! (Add 15 more updates for the leader [the free agent]) Generally speaking, even if people with an engineering background are good at mathematics, it is often at the application level, and few people are also good at researching mathematics. In fact, Yang Wei himself has quite good mathematical skills, but when it comes to cutting-edge topics in the field of numerical computing, he still needs the assistance of some experts. Its not worth talking about any research... Chang Haonan wiped the slight sweat on his forehead because he had just spoken for several long paragraphs: Many parts of my research process involve solving nonlinear partial differential equations, but there are currently no very easy-to-use tools, so I tried to see if I could develop one myself. If you really want to talk about it, because there are many assumptions and experience summaries in it, the serious mathematics community still does not admit that our kind of research belongs to mathematics..." ?Yang Wei was speechless for a moment. Looking at the sincere face in front of him, a young man who was more than ten years younger than himself, he suddenly felt like he had met his match. ?The other people looked at Chang Haonan with complicated expressions, and then at their deputy chief engineer next to them. ??The latter, after all, had graduated from junior high school and entered university directly. As a result, he did not do well in the exam and only went to Hokyong Institute of Technology... Ahem... Lets not mention this. Lets continue talking about your modification and solution method for the MG model, as well as the overall plan. ?Chang Haonan nodded and turned the PPT to the next page. The new model I modified is not much different from the original MG model in the derivation process. I only need to modify the pressure rise coefficient through the compressor. The biggest difference lies here. ?Chang Haonan pointed to a box with a cross in the middle behind the compressor. ?After realizing that his artistic level was indeed difficult to save, Chang Haonan gave up on refining his drawings and instead used more schematic diagrams. The main focus is to maximize strengths and avoid weaknesses. "This is a component that I temporarily call a closely coupled control valve, or CCV. We assume that there is no gas mass storage between the compressor outlet and the CCV, so a pure pressure drop can be created at the compressor outlet for simulation The impact of our main control stability control strategy on the entire engine operating state. Speaking of this, Chang Haonan released the improved derivation process of the MG equation step by step below. ?\''=(W/H)/(4B^2)(/W-1/Wt())H/lc ? J\''=J(1-(/W-1)^2-J/4-1/^24W/(3H)) In this formula, when J=1, it can represent a pure rotational stall and there is no risk of evolving into surge. When J=0, it is a pure surge, which is what we most need to avoid. condition" Obviously, Yang Wei kept up with Chang Haonan''s thoughts throughout the process and recorded it quickly in his notebook. Although aircraft design and aero-engine design belong to two different sub-disciplines, for a top boss like him, after mastering one of the fields, he will naturally have a certain understanding of the other. Moreover, the maneuverability of third-generation fighter jets, especially some third-and-a-half-generation fighter jets, has shown leaps and bounds. The propulsion system needs to withstand much larger flight attack angles and sideslip angles than before, and the air intake distortion problem it faces is compared to The problem is much more serious for second-generation fighter jets, which also puts forward higher requirements for the design matching of aircraft and engines. It has become an irreversible trend for aircraft designers to also understand engines. As one of the leaders, Yang Wei was naturally prepared for this change. After he stopped writing, he lowered his head and thought for a few seconds before raising his head: "There is a problem here, because the problem of rotational stall must be taken into consideration, so even under certain working conditions, the compressor speed cannot be set to Therefore, the tangential velocity at the center radius of the compressor rotor is no longer constant. How to solve this problem? " ?Chang Haonan looked at the part where the other party pointed out the problem: Re-establish a dimensionless constant =UdT/R, so that the dimensionless constants of the compressor inlet and outlet channels can be obtained through very simple calculations..." At the beginning, others can follow the ideas of these two people, but later on they can only pick out some parts that they are good at and listen to them. After confirming that there were no problems with the aerodynamic stability model, Chang Haonan moved on to the next part: After completing the engine modeling, the relevant parameters can be determined through experimental data to fit an engine operating curve that is as close to the actual situation as possible, so as to accurately predict the engine instability phenomenon. "I see" After the theoretical part is solved, the remaining problems will be specific to engineering practice. ?Chang Haonan closed the PPT that had been placed on the last page and started the final summary. There are not many websites that can search for pictures these days, and he can''t find photos of the AL31FN target engine used by the J-10. As for the turbofan 10, there are not even complete drawings. There is really nothing to put on it. of: "For example, inside the inlet duct, to detect the initial disturbance of compressor instability, the current preliminary plan is to use the harmonic Fourier coefficient method and the traveling wave energy method. As for which of their specific effects is better, it will only be tested at that time. Just found out. "In addition, active stability control, in the final implementation of the control step, still needs to be modified on the engine. The closely connected control valve mentioned in the previous modeling process is designed and added to the back of the compressor. It is ideal. Under such circumstances, this system can make the compressor instability state manifest as a rotational stall at most, without developing into surge. It can even change the compression characteristics of the compression system through the closed-loop control of the CCV, thereby... changing the compression system The stable operating range extends beyond the surge boundary and remains stable for a period of time! ?Yang Wei could remain calm in the previous part, but this last part made his right hand shake violently, and he almost couldn''t hold the pen in his hand. In other words, through the design of the aircraft control system and limited modifications to the engine structure, the engine''s working limit can be exceeded! ?Although Chang Haonan said that this kind of chicken-blooded state should not be maintained for a long time, in the ever-changing air battle, the power advantage, even if it only lasts for one minute, can sometimes determine the outcome. But the only problem now is... The engine needs to be modified. The functions of this system are indeed very tempting... ?Yang Wei closed the notebook and slowly leaned back on the back of the seat, with a deep regret in his tone: However, this tightly connected control valve...AL31FN is Liulikas design after all. Even if he cooperates with us, considering a series of issues such as project docking, it may be difficult to produce a finished product in a short time. ?However, Chang Haonan naturally thought of this problem a long time ago and waved his hand directly: It doesnt matter. It doesnt have to be done in one step. It can be divided into two steps. "When using a Russian-made engine for the first flight, we can remove the CCV of the hardware and keep only other parts. First install a youth version, which is a simplified version, and use the most basic and automatic way to adjust the throttle valve to adjust the intake air. Intervening according to the situation, although the effect is slightly worse, at least it can expand the engine envelope to a large extent and ensure flight safety under extreme conditions. " When the domestic third-generation high-thrust turbofan engine matures and is replaced, the full version of the active stability control system can be used. ?This explanation stunned Yang Wei: "Your system has very high requirements for flight engine matching. Let''s not say whether the turbofan 10 can be developed before the J-10 is officially put into service. Even if it is developed, the design of the inlet will probably have to be significantly changed... " Chang Haonans answer was even more self-liberating: Its just a big change! "You can refer to Xiao... uh, what we did when we were working on the August 3rd Project, we first built two non-full-state prototypes using the existing design, and evaluated and tested the overall situation of the aircraft structure, aerodynamics, flight control, etc., and then waited until After the domestic matching engine is released, we will come up with a second version of the design with a modified intake duct. In this way, we only need to test the power and active stability control system, and nothing will be wasted..." At first, Chang Haonan wanted to say Xiaolong out of habit. After all, it was the most classic model that had its air intake changed during the test flight. However, considering that the project had not yet been completed at this time, he changed his mind midway. . ?Yang Wei, who was sitting opposite, had a look of disbelief on his face ?Hello guys, our 611 Office asked you to help with Project No. 10. This is great. You can directly show your sense of ownership and change the progress of our entire project, right? (End of this chapter) Chapter 311 Boss, be my deputy! Chapter 311: Boss, be my deputy! Logically speaking, as one of the main persons in charge, it would be unreasonable for an outsider to intervene in one''s own project like this, and the idea of ??building two versions of the prototype sounds a bit crazy at first glance. However, as Chang Haonan just said, the first version of the design can actually verify the overall aircraft and most of the subsystems. The second version only needs to check for deficiencies and fill them in, and it will not cause too much waste. The final design If the full version of the aircraft can really achieve active stability control as Chang Haonan said, the benefits will be huge... ??Yang Wei admitted that he was a little tempted. ?Seeing him bowing his head in thought, Chang Haonan knew clearly that this was a sign of a person in tangle. So he added another heavy chip to the opponent''s inner balance. As for the second version of the design of Project 10, I actually had contact with the comrades from Guizhou Airlines at the beginning of this year. Sure enough, topics related to the project quickly aroused Yang Wei''s interest. He raised his head and looked at Chang Haonan with some confusion. Guihang is a brother unit supported by the 611 Research Institute and the 132 Factory in Chengdu, so he is naturally familiar with it, but so far it has only been able to produce some two-seater JJ-7s, both in terms of design and production capacity. , none of them have the possibility to participate in Project No. 10. "At that time, they wanted to develop a new generation of advanced trainer aircraft based on the JJ-7. I gave them some support in terms of overall plans and simulation technology. If nothing else happens, after the basic design is come out, I will prepare this An attempt was made to apply the DSI air intake in this project. After entering the 1990s, the aviation industry painfully reflected on the experiences and lessons of the previous two or three decades and summarized a set of relatively low-cost and low-risk technology verification models. Except for particularly critical and special technologies like digital telex, which require a specially built J-8IIACT for verification, most new technologies can be verified in the development process of existing models in small steps to share risks. . In the previous life, due to a series of technical development and organizational management reasons, this principle was not well implemented. There is no other way. There are too few projects and the development progress is slow. We can only seek to accomplish all the results in one battle. ?For example, the J-10 has no choice but to intensively apply more than 60% of new technologies, which is actually quite risky. But now, due to the role played by Chang Haonan, the August 3rd Project was successfully finalized, and more importantly, the development of aviation technology was streamlined, allowing this principle to finally be carried forward. ? Including the J-10, which has just completed final assembly and has not yet made its first flight, subsystems and technologies such as radar, power supply, and integrated front windshield have all been verified in advance on the J-8C. Therefore, although the emergence of Chang Haonan has greatly accelerated the development of Huaxia science and technology, especially aviation technology, this has not only not led to an unstable foundation, but has also reduced the risks of many projects on this timeline. Chang Haonan is now talking about applying DSI air intake technology on an advanced trainer aircraft that has no difficulty in development. It is obviously to prepare for the second version of the design of Project 10. DSI air intake Yang Wei was stunned for a moment by this term, and then he reacted: Oh, you are talking about the convex hull inlet, right? At the beginning of the 1990s, it was even difficult for China to systematically track the cutting-edge international aviation technology, so there was no unified idiomatic translation for these new terms. Chang Haonan nodded: Yes, these two translations mean the same thing. This is a design that has been highly discussed in the past two years. Research in the United States has just begun. An F16 was specially modified to verify this thing. ??Although no relevant projects have been launched in China at this time, it is naturally impossible for people like Yang Wei to turn a blind eye to this: "It is said that the JSF, another fourth-generation aircraft they are currently developing, plans to apply this technology. Are you... sure you can be ahead of the Americans? And if the improved version of the JJ-7 has air intake in the nose, are you ready? How to install the convex hull, uh, the DSI air intake? " Of course its not the nose air intake. When I communicated with comrades from the 648th Research Institute before, the overall plan has been changed to a dual-intake design under the ribs. Seeing that the other party had shown strong interest, Chang Haonan shook his head and continued to explain: The DSI air inlet utilizes the waveriding principle and the characteristics of the conical flow itself to blow out the boundary layer of the fuselage by relying on the pressure gradient on the compressed curved surface. This eliminates the need for boundary layer partitions, relief systems, and bypass systems. Several parts are lighter than ordinary air intakes and have a smaller radar reflection area. As long as they are designed properly, the performance will definitely be greatly improved. " "The only problem is that this kind of air inlet is completely fixed, so the optimization range is relatively narrow. However, considering that the aviation force does not need Project 10 to undertake any high-altitude and high-speed interception missions, it only needs to choose the transonic speed of Mach 0.7-1.5. Just optimize the speed section..." This is another benefit brought by the smooth finalization of the J-8C into service. The J-10 does not have to do everything, it only needs to be responsible for the parts that a normal third-generation aircraft is best at. "However, just analyzing this kind of thing on paper is not very convincing. After all, Project 10 is a new advanced training aircraft project. I plan to use it as China''s F16ICON to meet the training needs of the aviation force. , which can be regarded as a technical verification for the subsequent improvement design of Project 10. ?Historically, the verification of the DSI inlet was originally completed on the Xiaolong, but at present, the Pakistan Air Force seems to be very satisfied with the J-7F, and it is likely to have some impact on the advancement of the subsequent Xiaolong project. ? And even if everything goes well, it will take 1998 for the two countries to complete the debate on technical and tactical indicators and finally transfer the project to the development stage. ?In any case, Chang Haonan couldn''t afford to wait for a year, so he had to use his subjective initiative and launch a project to verify it. Hearing this, Yang Wei, who was sitting opposite, finally realized ??Oh, no wonder Xiaozi just said that he wanted to make a major change. The co-author even helped us choose the form of the air intake for the second version of the design... You have figured it all out, right? At the end of the day, I am Party A and you are Party A? However, although there was a suspicion of cheating, Party B, who was originally only invited to assist in the structural and aerodynamic analysis before the first flight, actually sent two such gift packages, and both of them were the J-10 as a medium-sized single-engine fighter. The much-needed partsreliability upgrades, engine envelope expansion, and weight reduction. ?Its really hard to refuse. After a battle between heaven and man, he decided to temporarily forget his dignity as Party A. Okay, what do we need to do with the 611? I mean, all that you just said, active stability control, and the DSI air intake. ??Yang Wei pressed out the tip of the ballpoint pen again and opened the notebook. Step by step, the DSI air intake can be done a little later. Concerning the follow-up plan, Chang Haonan has already prepared the draft: "Both the instability prediction system and the stability management system require a large amount of data support, and I plan to complete the relevant algorithm and control rate design in one to two months. It is impossible to always run both ends, so now I need you to send Several people who are familiar with the overall design of Project 10, especially the flying hair matching design, came to assist me. "for how long?" Even though Yang Wei thought he was used to the outrageous behavior of the guy in front of him, what he heard in his ears still made him feel a little unbelievable. One to two months. ?Chang Haonan was used to dealing with this kind of scene when he was working at the 83rd Project: This way, without delaying your progress, you can integrate this system into the flight control before the engine ground test begins. The reason why Chang Haonan was in such a hurry was because as a reborn person, he knew through later declassified information that the reason why it took more than a year from the offline of the J-10 prototype No. 01 to its first flight was not mainly because of the rumors. Guangzhou''s three drops of oil (the inspection after the three drops of oil was discovered only took about ten days), but it was due to two blade damage problems that occurred during the ground test. It took a lot of man-hours to repair, and finally the air inlet was adjusted. Some details were passed. ??If this incident can be avoided, the first flight of the J-10 can actually be advanced to the second half of 1997. Of course he can also go to the 611 Institute and find ways to perfect the relevant designs in advance. But doing so also takes a lot of time. In contrast, it would be better to develop this active stability control system in advance to avoid the two blade damages. In this way, not much time will be wasted, and the designers of the 611 Institute can discover and solve the problem by themselves. After all, there are some things in the engineering field that you can only appreciate if you miss them. ??And today, Chang Haonan no longer needs to provide himself with enough prestige through several successful problem analyzes and improved designs as he did when he first joined the 83rd Project. ? Putting your name there is enough. ?For example today, he just made a PPT, combined with a simple description, which was enough for the 611 Office to take his suggestions into consideration. ??Yang Wei certainly doesnt know what will happen to the J-10 in future tests, but he knows very well that the system developed by Chang Haonan can provide huge room for fault tolerance. In the worst case scenario, it may even give the entire project a chance to come back to life. ??For this reason, it wont hurt even if the testing progress is delayed for a few months. Now, the other party actually said that there is no need to waste time... So be it. ??Once something like really fragrant happens for the first time, there wont be any psychological burden the second time, so Yang Wei quickly made a decision. Of course, the one who is most familiar with the overall design of Project No. 10 is Mr. Song, but he has to stay in Rongcheng and be in charge of him. The next one is me. How about I stay here and be your deputy? ??It''s all for Project No. 10, what about Party A and Party B, so narrow-minded! (End of this chapter) Chapter 312 IL-78 coming to China Chapter 312 Il78 who came to China As an unknown ordinary senior engineer in his previous life, Chang Haonan was able to find a big man like Yang Wei as his deputy after just one year of restarting his life. Even though it was only temporary, Chang Haonan felt secretly happy for a long time. Over the next month, the software part of the active stability control system gradually turned from idea to reality at an unprecedented speed. During this period, the world was also in turmoil. ? ? In the eastern part of Qingtang Province, 1,500 kilometers away from the capital, four white-painted J-8C fighter jets flew across the sky over the Gobi Desert at high speed. Captain Wang Wei, pilot of the 25th Regiment of the 9th Naval Aviation Division, is sitting in the cabin of No. 12 aircraft. While maintaining formation flying with his teammates, he also has to identify landmarks through the cockpit glass on both sides. For the Chinese aviation force, in this era when there is no domestic navigation system, even a long-distance transfer flight that sounds very simple is very difficult to actually execute due to the positioning issues involved in unfamiliar airspace. The naval aviation, whose mission attributes are different from those of the air force, is even weaker in this regard. ? Among other things, it has been seven years since Wang Wei graduated from aviation school in 1990. This is the first time he has flown deep into inland airspace. Therefore, even though the experienced division commander Tang Yiping led the team, the other three pilots were still a little nervous. They flew from Qiong Province to here without any landing. The fuel level was already tight, so there must be no mistakes in navigation and positioning. Whats puzzling is that although there was no in-flight refueling during the whole process, all four aircraft were equipped with in-flight refueling pipes. ?This non-retractable design has a simple structure, but if it is not refueled, the resistance it brings will actually shorten the voyage. Fortunately, what they were most worried about did not happen. After continuing to fly in the same direction for about 15 minutes, an unclear but still coherent voice came from the radio, indicating that the base had captured their signal and asked them to adjust their position. 145 direction and began to descend in altitude. The airport has only one runway, so you have to land in two batches. The tower commander said at the end. ??According to the 1984 Warsaw Pact-organized Shield 84 exercise, a runway could take off 72 fighter jets in 5 minutes. ??But this kind of high-end gameplay is not necessary in peacetime, and secondly, it is basically unthinkable for the Chinese aviation force at this time. So Wang Weis No. 12 aircraft and his wingman No. 13 aircraft need to make an extra circle over the airport. It was this circle that made him notice that in the parking area in the distance, there happened to be two huge transport aircraft being slowly pulled into the hangar. Wang Wei, who is familiar with almost all Chinese and foreign air force equipment, quickly determined the model: Are there two more IL-76s here? This airport, located in Qabqia Town, Gonghe County, does not have permanent aircraft on weekdays. There is only one establishment at the regiment level, but the actual scale is only stationed at the battalion level, so all aircraft must have transferred from other places. . At this moment, he suddenly had a feeling that this was definitely not the "long-distance transfer flight training" mentioned by the division commander at the training mobilization meeting before takeoff. Moreover, look at the side, there are power supply trucks and gas supply trucks parked next to two hangars. There must be other aircraft present. It looks like the battle is huge this time. Zhao Yi, the pilot of aircraft No. 13, also replied. ?At the end of the 1990s, joint training of multiple aircraft types required approval at the military district level before it could be carried out. What''s more, those two IL-76s definitely do not belong to the naval aviation. There are only 14 IL-76s in China, all of which belong to the 19th Air Force Division stationed in Hubei Province. So this could be an inter-service exercise ?Wang Wei was thinking this way in his mind. That would be even more shocking. But for a pilot like him who wants to make progress, it would definitely be a good thing if he has the opportunity to compete with his colleagues in the Air Force. Its just not clear what these two transport planes are for... ?At this time, instructions came from the radio for them to prepare for landing. The two had no choice but to return their attention to the cockpit, adjust the flight direction and attitude, and descend to prepare for the approach. After a smooth and light landing, ground crew quickly followed up and took away the parachutes thrown away by the two planes. The two planes entered the taxiway and drove slowly to the parking area not far away. As Zhao Yi speculated just now, Wang Wei also quickly saw the situation inside the other two hangars from the ground point of view. Parked respectively were a strange-looking Y-8 with a big nose and an ordinary-looking J-H-7. The four J-8Cs in their group also stopped in the designated area according to ground guidance. Four 212 jeeps followed closely and towed the plane into four other hangars after the pilot got off the plane. Commander, we flew 2,000 kilometers to get here this time. Im afraid its not just a simple transfer training, right? ?Wang Wei tentatively asked Tang Yiping, who had just taken off his flying helmet. The latter took the flight record handed over by the airport staff and prepared to sign it, then turned his head and showed a smile: Its a good idea. Youll know about it soon. Come on, come to the meeting with me. After saying that, he walked straight to an inconspicuous small building next to him. ?While passing the two hangars where large airplanes were parked, Wang Wei couldn''t restrain his curiosity and took a serious look inside. Then he instantly realized that there was something wrong with his judgment just now. ??This aircraft has three white pods hanging under the outside of the wing and on the left side of the tail. ?Although he has never actually carried out aerial refueling, as a top student in aviation school, he once simulated this process in a trainer aircraft and an H-6, and he also has some understanding of the relevant equipment. Are these two IL-78s? ??The shocked Wang Wei instantly exclaimed. He was very convinced that neither Chinas air force nor naval aviation had ever had such strategic-level equipment before. And if you take a closer look, you will find that one of the two aircraft in front of you is painted with a sky blue fuselage and white belly paint commonly used by the Chinese Air Force, while the other one is actually wearing a somewhat mottled Soviet Air Force paint. , but the national flag on the vertical tail was painted out in a rather sloppy way. In the blink of an eye, he also figured out why his four planes had to carry oil receiving pipes, a piece of equipment that had never been used before... This is to carry out special training. If there is aerial refueling, it must involve ultra-long-distance flight, otherwise it is completely unnecessary. As for things related to their 9th Haihang Division and the need for ultra-long range... It can only be related to the South China Sea. ?Wang Wei became excited instantly. (End of this chapter) Chapter 313 Multiple arms unite for embankment building action! Chapter 313 Multi-arms unite for embankment construction operation! ??When Tang Yiping took Wang Wei and three other people into an underground conference room, there were already many people sitting inside, and even the circle of chairs placed against the wall was almost full. Fortunately, as front-line pilots, they will always have some "privileges", so there is still enough space on the edge of the long conference table. ?So a few people quickly took their seats, then placed their flight helmets neatly in front of the side, and took out notebooks and pens from the backpacks they had brought with them to prepare for recording. On the podium, a senior colonel officer in uniform of the Air Force was facing a laptop computer, sorting out materials unskilledly. When he saw that all the participants had arrived, he finally raised his head. ?Wang Wei remembers this person. I saw each others photos at a study meeting within the army. 899196604091904/10012130/8d5390492ba2c917504b29edf071cdeag2bTMj2eP2NcRv****g"> ??Its just that the specific deeds of this person were not mentioned at the time. He only said that he had studied tactics and practiced hard in the process of changing to new equipment. It is difficult to extract any valuable content from these clichs alone. Division Commander, this seems to be the one who was commended by the whole army before... He whispered to Tang Yiping next to him for confirmation. "That''s right, Deputy Commander Zheng Liangqun of the 1st Air Division. He was also present when we picked him up at the beginning of this year. I guess... he will be promoted to division commander soon." I dont know why, but Wang Wei heard a little envy in the latters tone. ?Mingming Tang Yiping had already been the division commander a few years ago. He originally wanted to ask again, but suddenly he heard an officer announcing the beginning of the meeting, so he had to give up temporarily. Zheng Liangqun on the podium cleared his throat and looked at the dozens of mid-level and senior officers sitting densely under the stage. If he had to describe how he felt now, it would be "shuang". Although he has received many commendations in recent months and held several advanced deeds report meetings, he even led a team to the northwest a few days ago to participate in the first open red-blue confrontation exercise organized by the Chinese Air Force. The future is bright. But he has always had a regret, that is, although sometimes he tacitly agrees on and off the stage, in most cases, he is unable to clearly explain the results he achieved over Kashmir. Let alone tell people the whole process in detail. But today is different. ??Although this underground conference room was dark and cramped, and there were not many participants. ??However, when he was preparing the speech, he received an order from his superiors, indicating that there was no taboo on the topic this time. Finally I can satisfy my desire for expression that has been suppressed for months. "Hello comrades from the Navy and Air Force, my name is Zheng Liangqun. This time I am here to share with you some of my experiences in training, exercises and combat based on my personal experience of leading the troops to modify the new J-8C fighter jets in the past few months. lesson" ??It may seem like an ordinary opening statement, but Wang Wei captured a key word from it Combat? ??This is not a word that can be said casually, especially since the other party is a star figure in the military aviation in recent months, and it is even more impossible for him to make such a low-level mistake... First, lets take a look at the J-8C flight envelope chart sent to us. Zheng Liangqun called up several pictures put together on the screen. The complicated lines on them drew the envelope of the aircraft at several typical altitudes. There are many such pictures in the flight manual, but even for pilots, in most cases there is no need to memorize all the envelopes at an altitude of one thousand meters - that is the task of the flight control computer. "I can assure all comrades here that you can boldly squeeze the aircraft to the edge of the envelope without worrying about the stability of the engine or wing operating system. In fact, from my own experience, The envelope of this aircraft at medium and low altitudes, especially at an altitude of 3,000-5,000 meters, is even somewhat conservative..." "During exchanges with brother units equipped with Su-27 aircraft, I found that it is really difficult for the J-8C to gain an advantage against mature third-generation aircraft at altitudes below 12,000 meters. However, the advantage of the J-8C is that it does not need to rely on any imported aviation materials, fuel and equipment. , the ground crew is also more familiar with our own aircraft, and the result reflected in the exercise is that the dispatch rate is almost three times that of theirs..." "The radar of the aircraft is the part I want to emphasize. Its detection range of clean airspace at medium and high altitudes is slightly inferior to that of the Su-27, but its downward-looking ability below 5,000 meters is much stronger, and it can detect ground clutter and sea waves. Clutter also has better filtering capabilities. The resident engineer of Dianke Group introduced to me that this is because of the application of a brand-new filtering algorithm... In short, this should be more meaningful to comrades in the naval aviation..." ? ? " Due to the oversized wings of the Thunderbolt 11, its range performance at medium and low altitudes is poor, but its advantages will be reflected after reaching an altitude of more than 15,000 meters. This was demonstrated when Comrade Chen Jialiang, Chief of Staff of the Division, and I shot down the Triple Sonic Squadron. The MiG-25 played a very important role in the battle..." ?Wang Wei turned his head again and looked at Tang Yiping next to him. ?Although I had made a guess based on some clues just now, when someone else actually said it personally, the feeling was completely different. And the one that was shot down was the MiG-25. ?It goes without saying that this model is legendary. Faced with the overwhelming superiority of the coalition air force in the Gulf War, it was still able to come and go like the wind. The shock that such a plane was shot down in an understatement was absolute to Wang Wei. He finally understood why his teacher''s tone just now was filled with envy. This is the first victory achieved by the aviation force in more than 30 years. Isnt it something to envy? Zheng Liangquns report lasted about an hour. For the four pilots of the 9th Hainan Division, it has indeed benefited a lot. Due to problems with the organizational form and training resources of the naval aviation forces, there is indeed a certain gap between them in terms of technical and tactical levels compared with the Air Force''s fist units such as the Air Force Division. Whats more, others have practical experience. After the report, Zheng Liangqun left the meeting first, but the whole meeting had no intention of ending. A few minutes later, a naval aviation leader stood on the podium, looked down and slowly said: Comrades, next, I will introduce the background and basic situation of this multi-arms joint exercise. "Just a week ago, the British Navy announced that it would form a task force code-named Wave 97 to deal with what they called ''something happened on Hong Kong Island,'' and would also hold a joint naval and air exercise with Annan near Nanci Island. " This is a naked provocation! The major general who spoke clenched one hand into a fist and knocked twice on the table in front of him. At the same time, the PPT projected on the screen also switched to an introduction to the Hailang 97 fleet. A total of 34 ships, including one cruise ship and one aircraft carrier. For the Chinese Navy in this era, it is indeed quite large. Fifty years ago, our predecessors opened fire resolutely in the face of the Amethyst, ending the history of imperial powers engaging in gunboat diplomacy against us. And now, at this moment when everyone is watching, we cannot let the British plan succeed! "So, according to the instructions of the superiors, this time, our navy and air force will cooperate. The main task is to prevent this wave 97 task force from sailing into the waters outside Hong Kong Island when we are not prepared. By the way, it can also be used by the Royal Navy. Lets take a look and let them realize the reality. Its already dark on the empire where the sun never sets. A somewhat sudden joke finally relaxed the tense atmosphere in the venue. "30 kilometers to the north of this airport is Qinghai Lake, which can simulate sea surface conditions to a certain extent. We have gathered comrades here from all over the country today, and we plan to conduct a targeted special project in the next few weeks. Special training. Since the British called the fleet they came to stir up trouble with, the troops came to cover it up with water and earth. The code name of our mission is...Operation Embankment! Additional updates for the leader [who is just a walk-on] (2/5) (End of this chapter) Chapter 314 Shave the Britishs heads! Chapter 314: Shave the Britishs heads! For Wang Wei, everything was explained now. The naval aviation force was urgently requested to relocate to the Gobi Desert, the IL-78 aerial tanker that didn''t even have time to change its paint, the "big-nosed" Y-8 that looked like it belonged to a special aircraft unit, and the aircraft whose main business was maritime The attacking JH-7 It is a perfect configuration for dealing with a fleet 1,500 kilometers away from the homeland. The only problem is that the number of each model, especially the J-8C aircraft, which is the main anti-aircraft force, is relatively small. ?This makes it difficult for him to be optimistic. ?It is the tradition of the Chinese aviation force to attack more with less, so Wang Wei has nothing to fear. This is just a high-tech war. In many cases, problems cannot be solved without fear. ? Judging from the fleet configuration just projected on the screen, the fleet sent by the Royal Navy this time has only one light aircraft carrier, the HMS Excellence, which can carry about a dozen Sea Harrier FA.2 fighter jets. However, even so, this is still a threat that cannot be ignored. This latest model of Sea Harrier is equipped with Blue Vixen radar and AIM120 active mid-range bombs, although due to the poor performance of the aircraft itself, it is difficult for this combination to perform as well as the F15 Effect, but for the Chinese Air Force, which has not even deployed semi-active mid-range missiles, the advantage still exists after all. Especially in the current combat scenario, the opponent''s fleet is still on the defensive. ??Sea Harrier aircraft may seem a little inadequate as an offensive method, but the task of providing air defense umbrellas to the fleet can still be completed. ? Relying on radar with a longer detection range and better flight performance, it is not completely impossible to defeat semi-active bombs against active bombs, but the basis of all this is that the quantity cannot be at a disadvantage. At this time in 1997, the Air Force''s Su-27 had an absurdly low readiness rate and still did not have the ability to transition. What''s more, cross-service cooperation was an almost new topic for China. Simple cooperation such as aerial refueling was still needed. If the fighters really want to cooperate with each other, there might be some trouble. So if the naval aviation is to be used as the main force in this embankment building operation, then the only ones that can be used for air control are their four aircraft... The only solution is probably to cut in from high altitude? ??Wang Wei simply drew a tactical diagram on the notebook in front of him. ?Although he is still only a captain, he is usually happy to think about some issues that only more senior commanders would think about. Judging from the advantageous performance range of the equipment on both sides, if they enter the battlefield from more than 20,000 meters, then descend to conduct a simulated attack and then return, the opponent will indeed be helpless - the Sea Harrier with bombs can hardly climb to More than 12,000 meters, and it is impossible for any air-to-air missile to make up for the height difference of nearly 10,000 meters. Just do this with the J-8C, which cannot mount anti-ship missiles, and the actual threat it brings is actually not high. Just when Wang Wei''s brainstorming reached an impasse, the commander on the podium finally talked about the specific combat plan. "The instructions from our superiors did not specify how we should deal with this fleet. So, my understanding is that we can do everything except not fire." So, our plan is to learn from the advanced experience of the Red Navy aviation and let the fighter formations fly at ultra-low altitudes to directly shave the heads of the British aircraft carriers! With one sentence, the pen tip in Wang Wei''s hand directly scratched the paper, leaving a black mark on the paper below. "grass" Very good, very wild idea. ?Wang Wei, who had just been thinking about entering the venue at high altitude, thought to himself with some embarrassment. The so-called shaving of ones head means shaving ones head quickly from a very low height, which can give people a strong sense of oppression. ?However, even the Soviets are not always able to successfully break through fleet defenses and achieve this step. "The area where Britain and Annan are conducting exercises is 1,470 kilometers away from Lingshui Airport in Qiong Province. Considering that we need to keep flying low in the second half of the journey and may be able to deal with it for a period of time over the opponent''s fleet, we need comrades from the Air Force. Establish an aerial refueling area here." The pointer points to a long strip of area on the map about 650 kilometers south of Qiong Province. Aerial refueling area. In the past, this was a term that Wang Wei had only seen in books describing foreign military operations. ??Now it actually appears in their own mission briefing. "We will send a Y-8J warning aircraft and a Y-8X maritime patrol aircraft to approach the target area from a 60-degree direction and an altitude of 8,000 meters to attract the attention of the opponent''s carrier aviation. However, the Y-8 platform does not have the ability to receive refueling in the air and is subject to It is difficult to defend themselves after a threat, so they will end up staying about 200 kilometers away from the opponent''s fleet, retreating before the enemy carrier-based aircraft arrive, and delaying it for as long as possible." The main attack mission is carried out by four aircraft of the 9th Hainan Division. One of them needs to carry a photo reconnaissance pod to record the entire process during the low-altitude flyover. Hearing this, except for Tang Yiping, who most likely knew the plan, the other three pilots looked at each other, and then they saw the eagerness to try on each other''s faces. Obviously, everyone wants to do this kind of work of showing their face by themselves. ?Of course, the premise is that you can really break into the sky above the opponent''s deck. If you get entangled halfway, you will be the one who is embarrassed. "Considering the complexity of this mission, we have reached cooperation with two universities and the 14th Institute of Electronics, and used existing mature technology to temporarily develop a high-altitude airship used as a communication relay, so even if you keep Flying at low altitude, you can still maintain contact with the command center throughout the entire process..." At this point, the mission commander was silent for a few seconds to give others some time to think and record. Then, comes the real highlight of today: In addition, during the mission, you will also receive full accompanying cover from an electronic warfare aircraft. ?This sentence truly stirs up a thousand waves with one stone. Some people even exclaimed: Electronic warfare aircraft? The Chinese Aviation Force is indeed equipped with relatively simple electronic warfare aircraft such as the HQ-5 and H-D-5, but regardless of their combat methods, flight performance or range, it is impossible for them to "accompany" the J-8C four-aircraft formation throughout the entire process. Yes, this is the latest model recently developed by our military industry department. It should still be in the stage of exploring tactics, but now that the British have caught up, its time to use them to test the effect. "According to our previous tests, after turning on the jamming, this JH-7 can disable most C-band search radars and X-band fire control radars that are not particularly powerful. Therefore, it can greatly reduce the British fleet''s reaction time." "From what we have obtained so far, the combat ships in Wave 97 include one aircraft carrier, two Type 42 destroyers, two Type 22 frigates and one Type 23 frigate. The rest are transport, landing and supply ships. Among them, Type 22 and Type 42 are both early versions and pose relatively little threat to the formation. " "Of course, this does not mean that we can sit back and relax. It is always people, not equipment, that determine the outcome of a war. This also applies to our opponents. If we take it lightly because we have superior equipment, we may still be defeated. Others have seized on the flaw, and now the comrades are gathered in this Gobi Desert for training, in order to make everyone familiar with the tactics of this operation faster..." ?While speaking, the PPT on the screen was also switched to the next page. ?The above is a JH-7 that looks ordinary. ? ? Its just that it uses a black radome similar to the new batch of J-8C, instead of the green one of the old J-H-7, and the front windshield of the cockpit has also been changed from a three-piece to a one-piece one. It was the one that several people had just seen outside. Of course, it can be seen from the picture that the antenna and wing design are slightly different from the old model, and the cannon seems to have been cancelled. ? This kind of dedicated electronic warfare aircraft, which is on the same platform as combat aircraft and can provide cover for the entire fleet, Wang Wei has only seen in books describing foreign military operations... As a pilot who participated in the confrontation at the beginning of last year, he was 100% sure that our side definitely did not have these equipment at the time. Otherwise, it would have been taken out long ago, and it would not have been embarrassed by the opponent''s EA6B. ?Wang Wei touched his head. ?Its just been a little over a year, so when did all this equipment come out? For a moment, he felt that he couldnt understand the peoples army he was in... (End of this chapter) Chapter 315 See again J-10 Chapter 315 See J-10 again After Zheng Liangquns report, the meeting lasted for about an hour and a half before ending. As for the content of the second half, it is mainly about assigning specific tasks to different units, as well as the technologies that need to be trained recently. ?Of course, no matter how tight the time is and the tasks are heavy, there is still no shortage of time in this afternoon. Flight safety is no small matter, and it is foolhardy to ask a pilot who has just completed a long-distance transfer to drag his tired body to practice more. So after all the contents of the meeting were over, a mobilization dinner was arranged, which could be regarded as allowing the different units and even the commanders and fighters of different services involved in this operation to get familiar with each other. Nevertheless, after having just received such a large amount of information, everyones focus is naturally on the upcoming task. I said, this mission design, no matter whether it can be completed or not, it sounds really encouraging..." After the meeting, Zhao Yi, who picked up his flying helmet again, whispered to Wang Wei next to him, The incident of Hailang 97 was actually reported in the news a few days ago. I thought this time it would be the same as before, and we would let the surface ship force take the lead, and our aviation force could only watch..." Such whispers did not escape the ears of the division commander Tang Yiping not far away. "Before...you thought we wanted to do it before?" The latter turned around. Although his tone was still serious, the expression on his face still revealed his joy. "The J-6s we equipped in the early 1980s didn''t have enough fuel to fly anywhere. Later, even if we switched to J-8s, they would just fly around the islands closest to Qiong Province. It''s not like it is now. After one refueling in the air, the range can be counted up to 4,500 kilometers... You guys have to work hard, refueling in the air is not easy, but to complete this mission, you must practice it in these two weeks! " "yes!" Guaranteed to complete the task! On the way to the canteen, Wang Wei applied to Tang Yiping, and then he and the other two pilots took a special detour to the hangar where the IL-78 and JH-7 were parked. Since joining the flight school, the former has been exposed to aircraft for more than 10 years, but he has never seen a huge aircraft like the IL-78 before. ?He raised his hand and touched the radome under the cockpit in front of him. In order to retain the take-off and landing capabilities at frontline airports and in harsh weather conditions, the navigator cabin is still retained even on the latest model IL-76/78. Therefore, the radar on the nose of the aircraft is squeezed to a lower position and becomes a One of the classic features of this model of transport aircraft. Its so big... Zhao Yi, who was following Wang Wei, also sighed sincerely. He even had to raise his head nearly 90 to see the plane''s high vertical tail. Im afraid this plane can refuel our entire brigade Hearing this sentence, the ground crew wearing big green flower camouflage and carrying the blue rank of the Air Force laughed twice: This aircraft can refuel other aircraft with a maximum of 65 tons of fuel. A group of 12 aircraft... Its about right. In most cases, aerial refueling cannot completely refill the fuel tank like on the ground, so an average of 5 tons of fuel per aircraft is definitely enough. It would be great if we built this plane ourselves ??Wang Wei looked around at almost a platoon of ground staff who were climbing up and down to inspect and maintain the aircraft and said. Zheng Liangquns initial report also mentioned that even if the paper performance of a completely domestically produced aircraft is lagging behind that of imported aircraft, it will still have certain advantages after comprehensively considering maintenance support and dispatch rate. In the final analysis, war is a process of attrition, and independent production means that there is no need to worry about being manipulated in the process. Whats this? Another ground attendant who came over to drink water held up his hat and interjected: "When I first joined the army, the aircraft I served was a C46. You may only see this kind of aircraft on TV now. One time I saw the nameplate of an aircraft and it turned out that it was produced in 1943. At that time, our aircraft maintenance department The captain told me that the plane flew over the hump route..." Wang Wei and others turned their heads and saw a second-level non-commissioned officer carrying three thick crutches. This basically requires more than 20 years of military service. Although no matter how high-ranking the non-commissioned officers are, they are still soldiers and need to be commanded by the commander in the command sequence. But now they are not even in the same military branch. Wang Wei and the others are very young, so there are naturally a lot less talk among them. "Later, I was transferred to other units, and the aircraft type I was responsible for became the domestically produced Y-7, and then the Y-8, until I switched to the IL-76 in the first two years... Almost twenty years have passed in the meantime. Bar." So at this rate of development, I guess no matter what, our country should be able to build a transport aircraft similar to this one before you ground it... While the relevant forces of the Navy and Air Force were busy preparing to give the British a huge surprise, Chang Haonan, with the full assistance of everyone in the 611 Institute, has also entered into the development of the surge prediction system for the first version of the J-10 the end of. Since it is impossible to temporarily modify the AL31FN engine, the current strategy can only be to reduce the fuel supply and intake distortion by closing the throttle and forcing leveling once a surge sign is detected, so as to avoid irreversible surge. vibration state. It is not a complete version yet, but it is still usable. Especially during the test flight, it is simply a life-saving talisman. More than half of the aircraft lost by China Aviation Industry during test flights were caused by engine surge. Therefore, after completing the basic control logic, Chang Haonan''s position was relocated from Beijing Hang University to Rongcheng. After all, it still needs to be integrated into the J-10 flight control. So, a few months later, Chang Haonan saw the No. 1001 prototype again in the final assembly workshop of Factory 132. Compared to the last time we saw it, Unit 1001 is already in a fairly complete state. ?Just because it has not yet reached the stage of flight testing, the aircraft still retains its original large area of ??silver-white structural color, which is somewhat different from the yellow leather paint commonly seen in the field. Xiao Yang, Xiao Chang. ?Song Wencong, who had been stationed for a long time, stepped forward. From his bloodshot eyes and messy hair, it could be seen that he must have been spinning around for a while. After all, Deputy Chief Engineer Yang Wei, who was originally responsible for a considerable part of the on-site work, was kidnapped by Chang Haonan, and the burden on his shoulders will naturally become heavier. Im really sorry, Mr. Song, for borrowing our name from Mr. Yang for such a long time. ??Chang Haonan''s greetings made everyone in the workshop chuckle. "It doesn''t matter." ?Song Wencong held Chang Haonan''s hand and replied with a smile: We are not afraid that you will ask for people or things. We were worried that you would forget about Project No. 10..." ?After a few words of chatting and laughing, everyone quickly returned to the topic: "After the aircraft came off the assembly line, we have already conducted tests on the electrical and hydraulic systems. According to the schedule, the engine start test will be carried out next week. However, if you need it, you can also postpone it slightly. Project No. 10 is now The Tianzi No. 1 project in the aviation industry would rather go slow than make mistakes. " Thats not necessary. Chang Haonan shook his head and walked to the air intake of Unit 1001. "The engine ground start test does not actually use the aircraft''s own flight control, but is equivalent to plugging in a test computer, so it only needs to write the active control system into the test program. As for the integration with the flight control...can it be done by Mr. Yang took the lead and carried out it simultaneously with our testing, which is safe and does not waste time. " Hearing this, the three heads of the 611 institute, Song Wenchong, Xue Chishou and Yang Wei, looked at each other a few times. Well, since you are confident, Comrade Xiao Chang, then the testing process will be arranged as you said! (End of this chapter) Chapter 316 The first ground test of the J-10 (added 35 updates for the leader [the free agent]) Chapter 316 The first ground test of the J-10 (added 35 updates for the alliance leader [the runner]) Compared to integrating a new set of things into the flight control, the workload of just rewriting the test program is obviously much smaller. After all, the engine start test process does not involve the behavior of any wing action surface, only the throttle valve is a degree of freedom that needs to be considered. ?Of course, at the hardware level, Factory 132 still needs to install some sensors inside the air intake of prototype No. 1001. Fortunately, it is not a big job that requires breaking the muscles and bones to dismantle the aircraft. In short, with the joint efforts of everyone, four days later, all preparations were completed for the first engine start test of Project 10. Just in time for the day before the planned date on the schedule. Engine testing has extremely high requirements for the site. During the testing process, a strong negative pressure area will be formed in front of the inlet, and behind the micro-nozzle is a high-temperature and high-pressure area. Therefore, it is impossible to continue to complete it in the original assembly workshop. It needs to Drag it to a dedicated testing site. This will be the first time that the Project 10 prototype is exposed to the sun. Xu De, the person in charge of the final assembly of the No. 1001 prototype and the deputy chief engineer of the No. 10 Project, led the workers to conduct a final inspection of the aircraft. After confirming that it was correct, he and military representative Wang Guangyan signed their names on the record sheet. How do you feel now? ?Chief Engineer Xue Chishou looked at the aircraft tractor that was carefully reversing, and asked Xu De, who had just put down his pen next to him. Its almost the same day as my daughters wedding day The latter raised his hand and gently patted the edge of the plane''s wing. But, there is still a difference. Whats the difference? I hope this daughter will go back to her parents home less often. ?Xu De replied cheerfully while taking off his gloves. It is inevitable that the prototype machine that has completed final assembly will be returned to the final assembly workshop for maintenance and modification, but if it is reworked too many times, it is definitely not a good thing. Several ground crew members jumped off the tractor and fixed the front wheel of the aircraft to a long tow bar. Project No. 10 is not only a new aircraft, but also a new supporting aircraft tractor. ? ? In the past, whether it was Chinas aviation force or various aircraft manufacturing plants, the basic tools used to tow aircraft were Dongfeng trucks, 212 Jeeps and tractors. For some small planes, sometimes even a car is not used, and manpower is used directly. For those old second-generation or second-and-a-half-generation aircraft, this has nothing to do with it except that it is inconvenient and looks rather rustic. However, as a third-generation aircraft, the J-10 is still relatively delicate. Since ordinary civilian vehicles are not specially designed, a large amount of resonance will be transmitted to the body during the towing process, which may affect the operation of some subsystems. For this reason, Factory 132 spent huge sums of money to import this low-structure special aircraft tractor. Today is June 2nd? Chang Haonan, standing on the other side of the plane, noticed a calendar hanging on the wall not far away. Yes, Childrens Day was just celebrated yesterday. ??Yang Wei was wearing work clothes, and his eyes were squinted by the sunlight coming directly from the factory door. His attention was focused on the metallic plane in front of him, and he answered this seemingly nonsensical question in a half-joking tone, Chang Gong, although you are indeed very young, you may still be a little old for Childrens Day. ?Chang Haonan did not answer, just smiled and shook his head. June 2, 1997, in the previous life, was the day when the first prototype of the J-10 was completed and rolled off the assembly line. On the current timeline, although the manufacturing of the prototype of Project 10 has been accelerated due to various reasons, this day has become another important day for the prototype of Project 1001. For a large project like the J-10, it is impossible to keep its progress and basic design secret. In fact, as early as 1994, satellites captured blurry pictures of early full-size models. In 1996, the U.S. Office of Naval Intelligence even An imaginary picture of China''s third-generation aircraft that is quite close to the real situation has been released, and it is predicted that it will enter service around 2003. Hence, as the aircraft was slowly pulled out of the workshop, the group of people simply opened up and followed on both sides like guardians, walking towards the test workshop in the other direction of the factory. ?Xue Chishou simply rode a 28-wheeler and was the pioneer at the front of the taxiway. No one got on the bus prepared for them. Song Wencong was walking in front of Chang Haonan. He seemed to suddenly remember something in the middle of the road. He slowed down and asked the latter: I heard from Xiao Yang in the past two days that you are going to wait until Dawn gets out the turbofan 10 and then use the DSI inlet directly on Project 10? Facing this old man who has devoted his whole life to the Chinese aviation industry, Chang Haonan still did not boast too much: "Currently we can only say that we have this idea. We will have to test the performance and suitability of the DSI inlet on Guizhou Airlines'' new trainer aircraft later before we can draw a final conclusion. After all, modifying the inlet design is not a trivial matter. , we cant take risks directly on Project No. 10. There are improved models from previous generations, so he certainly knows that DSI air intake is feasible. For a medium-sized single-engine fighter, the high-speed performance trade-off has no practical significance at all. It is far less practical than reducing the weight of more than 100 kilograms and reducing the drag coefficient by a few percent. But the J-10B/C is, after all, a design that only appeared in the 2010s. The conditions in all aspects are much better than those in the 1990s, so Chang Haonan also needs a relatively simple project to practice his skills on, and then he can learn from the J-10. This can also minimize the impact on the project schedule. About an hour later, prototype No. 1001 finally arrived at the engine test station. ?Everything here has been ready as early as last month, just waiting for this plane, which has gathered the efforts of thousands of people, to be in place. The ground around here has been swept, right? ?While the staff was fixing the aircraft, Chang Haonan confirmed with Zhou Ziquan, director of the flight test station and person in charge of the flight test. He knew that the previous generation of J-10 had lost two AL31FNs during the engine test start-up process, but he had no impression of the specific reasons, so he could only strive to do his best in every aspect. Under other circumstances, such a straightforward question would actually be a bit offensive, but at this moment, no matter how careful you are, Zhou Ziquan naturally understood and nodded in reply: It has been cleaned, not only once, but also tested with a metal detector to confirm that there are no metal debris in the environment. In addition, we also... Just as the two were discussing various preparations before the test, a report came from the work station that the aircraft had been fixed, powered on and hydraulic preparations were completed. Everyone exited the test site in order and stood in another small room separated by bulletproof glass to watch. ?Several leaders looked at each other, and finally handed the walkie-talkie to the chief designer Song Wencong. It is most appropriate for him to make the beginning. Song Wencong looked at the old guys (and a young guy) in front of him, nodded, and slowly picked up the walkie-talkie: Project No. 10, Prototype No. 1001, engine ground test, start! An engineer in the operation room next to him pressed the start button. Suddenly, a roar resounded throughout the entire testing workshop. Even though they were separated by a thick protective wall, Chang Haonan and the others could still hear a little bit. After a few seconds, the engine speed gradually stabilized and reached the idle state with minimum thrust. Start successfully! ??This test is naturally not just to test the startup, but also to check the working status of the engine under different working conditions. Although the AL31FN is a relatively mature design, it is one thing to test the engine itself on the bench, and it is another thing to install it on the aircraft and match it with the inlet. Speed ??increase, 20% 30% 40% The specific command commands that follow will of course be issued by Zhou Ziquan. ?Following his clear and sonorous voice, the engine on prototype No. 1001 also steadily and gradually increased its operating speed. However, when Zhou Ziquan reported 70% of the command and the operator continued to push the throttle valve, an alarm suddenly appeared on the test computer screen! Almost at the same time, the throttle valve opening was forced back to the 40% level. ?Such a sudden change caught most people present off guard. Report! Throttle valve opening suddenly decreased! Computer alarm! There was a hint of panic in the operator''s voice. The calmest among them is naturally Chang Haonan. He knew that his equipment was working, so he pushed through the crowd and came to the door of the control room, explaining inside: The active stability control system detected the signs of engine surge, so it forcibly intervened in the throttle control! A new month has begun. Please vote for me, brothers. (End of this chapter) Chapter 317 coincide Chapter 317 Coincidence ?The test engineers present almost all turned their attention to the door. Surge precursor? ?One of them gently pushed up his glasses on the bridge of his nose. ??Now Chang Haonan''s name has gained a certain reputation in the industry, so he hesitated a little at first. ??But after repeatedly confirming that there was no obvious abnormality in the curve displayed on the computer screen, I decided to show my spirit of not fearing authority: But the data we collected just now is normal... No problems were found? Yes, if the working curve is abnormal, fluctuations should be seen in the working Reynolds number and compressor flow... In the end, it was Xue Chishou who had the final say: No matter what, stop the engine first! Even if the engine is running at idle, it is still working under high temperature and high pressure. If a problem does occur, the consequences will be serious. "yes!" ?The chief engineer who was able to make the final decision spoke, and the somewhat overwhelmed atmosphere in the control room finally dissipated a little. The roar in the test workshop gradually weakened and eventually became quiet. A group of people looked solemnly at the fighter jet in the test workshop that glowed with metallic luster under the light. Export the data and let Chang Gong and Yang Gong lead people to analyze the situation first. After a few seconds of silence, Song Wencong spoke first. The only people who participated in the entire development of this active stability system were Chang Haonan and Yang Wei, so this matter naturally had to be completed by them. Lao Xue, Lao Song. At this time, another man wearing a long-sleeved shirt and looking a little sick said: Should we try driving again? After all, the comrades at the test station are right. We didnt observe any signs of failure just now. ?Chang Haonan briefly thought about it in his memory, and then confirmed that he had no impression of this face. But being able to address the chief engineer and chief division in such a casual way obviously shouldn''t be ordinary people. ?However, Xue Chishou''s first reaction after turning around and seeing the person coming was surprise, and then he hurriedly walked up to him: Old Yang? Why did you come back from the hospital again? The visitor waved his hand to indicate that it was okay: Didnt I hear that you have started ground testing? How can my body be better even if I stay in the hospital? Why dont I come over and take a look. Xue Chishou sighed upon hearing this and opened his mouth but in the end he said nothing. ?After a while, he turned sideways again, stretched out his palm to indicate the direction of Chang Haonan and introduced: Lao Yang, this is... I know Comrade Chang Haonan, Ive heard about it in the hospital. ??The man cheered up, walked up to Chang Haonan, looked at it for a few times, and then stretched out his hand: My name is Yang Baoshu, Comrade Xiao Chang. A young talent is better than seeing it once. ?This name made the latter suddenly realize it, and then he felt a little sore at the corner of his eyes ?Yang Baoshu, general manager of Rongfei, was diagnosed with advanced lung cancer in 1995, but still continued to work despite the illness, and died of the disease in 1999 on the original timeline. Mr. Baoshu, hello. On this occasion, Chang Haonan couldn''t say much else, so he stretched out his hands and shook the other person''s hand tightly. Xiao Chang, I have just asked the on-site engineer to understand the situation. I dont mean to take it personally, but if no obvious signs of failure are observed, can the test be repeated? After getting to know each other, Yang Baoshu quickly returned to the topic. If the problem just now can be reproduced, it wont be too late for us to stop the test and take it apart for inspection. ?If it makes sense, Yang Baoshus suggestion is actually okay. In matters like fault identification, it is actually difficult to say who is right and who is wrong. Problem recurrence is indeed a part of solving the problem. After all, the probability of problems with the sensor or algorithm itself is not small. One test alone cannot explain too many problems. But Chang Haonan had read the script, and he knew that this engine did have problems during testing in the previous life. And now that his active stability control system has alarmed again, he definitely can''t take any more risks. Maybe something will really go wrong next time the test reaches 40% or 50%. Surge prediction can only predict surge caused gradually due to normal intake distortion. If the aircraft suddenly hits a bird or inhales a large foreign object, even the gods will not be able to save it. Dont worry Mr. Baoshu, we havent reached the stage of dismantling the aircraft yet. ?Chang Haonan can only choose to stabilize the opponent first, "The current test system integrates the latest technology I developed. It can predict the upcoming surge or rotational stall through small-amplitude disturbance waves with certain characteristics. The comrades at the test station will bring the data later. I can conduct an on-site analysis and make targeted troubleshooting or improvements if hidden dangers can be found. If not, I can restart the test run and it wont take too long. ?Hearing that there was no need for extensive rework, Yang Baoshu finally breathed a sigh of relief and did not raise any further objections. ?About half an hour later, a staff member of the test flight station walked out of the test control room carrying a laptop. Chang Gong, the test data just now is all in it. ?Chang Haonan took the computer and connected the power supply to the socket next to it. Everyone in the room came behind him as quickly as possible and formed a tight semicircle. In the end, a few people in the inner circle voluntarily squatted down so that everyone could see the small screen. Everyone here can be said to be an expert in the field of aerospace engineering. ?Whether they believe Chang Haonans statement or not, everyone wants to see what this surge sign is about. ?After several rounds of data processing within the software, only a few curves are now left among the originally numerous and complex curves. Those who are familiar with it can see that what Chang Haonan just did was to separate the components of the measurement signal at a specific frequency. Look here. Chang Haonan pointed to one of the curves and said, "The component of the engine operating curve modal wave at the surge characteristic frequency was absent at the beginning. It suddenly appeared when the test reached 540 seconds, and then gradually increased. By the 580th second, it was detected by the surge prediction system. After monitoring, the throttle opening was forcibly closed, and after 20 seconds, this component disappeared again. " "this" ?Of course everyone can understand a curve, but many people still dont understand why this curve is related to surge. ?At this time, Yang Wei, who also participated in the entire software development process, turned around and briefly introduced the basic working principles of the system to other colleagues. "Let me explain, when the engine is far away from the surge boundary, the system has a strong attenuation effect on small random disturbances inside the system. At this time, even if there are some disturbances, they will be quickly wiped out and will not continue. Deterioration. As the engine stability margin decreases, the system''s damping to small random disturbances also gradually decreases. When the stability margin is reduced to a certain extent, small random disturbances within the system will occur into a more stable frequency. Modal wave initial disturbance Starting from 580 seconds Someone noticed the timestamp Chang Haonan just mentioned, compared it with the test log recorded by another computer, and then shouted in surprise: Wait a minute, Commander Zhou gave the 70% command at 570 seconds, which means that at 540 seconds, when the routine analysis started to show abnormalities, the throttle should still be at the 60% position! As soon as these words came out, a discussion broke out among the surrounding crowd again. Obviously, it is not the action of pushing the throttle to 70% that induces the surge precursor, but there are hidden dangers earlier. Or, it may be that the surge prediction logic of this active stability control itself has problems. On the one hand, although Chang Haonan has now gained a certain degree of popularity, most people at the scene have not worked with him before, so what they hear is false after all. On the other hand, the basic principles that Yang Wei just introduced are indeed quite complicated in mathematics. Most people can only understand them roughly. It is naturally difficult to agree with them from the bottom of their hearts without a thorough understanding. Fortunately, several key persons in charge, including Xue Chishou and Song Wencong, had a deeper understanding of Chang Haonan. After a brief discussion, they ordered the suspension of this startup test. The Chinese people pay attention to getting off to a good start. The first trial ended in an anticlimactic manner. Although many people present obeyed the order, their emotions were still affected. ?At this time, a loud voice sounded from the outside of the crowd: Well, there is no need to overhaul the aircraft as a whole first. I can get into the air intake and see the condition of the fan and low-pressure compressor blades! (End of this chapter) Chapter 318 An engine was saved! Chapter 318 Saved an engine! Everyone was attracted by the voice and turned their heads to find that the speaker was a particularly short and thin man. If it were him, then "getting in and taking a look" seems to be a feasible option. Comrade, which unit are you from? Why do I feel like Ive never seen you before? ?Yang Wei looked at the man who volunteered and felt a little strange. Logically speaking, such a distinctive person should leave an impression upon meeting him. My name is Lin Hui, and I am an engine structural design researcher at the 606 Institute. I was seconded to the flight test station here just last month to carry out support work related to the ground testing and first flight of Project 10. ?The other party reported their identity. When Comrade Lin Hui was transferred here, Xiao Yang was at Beijing Airlines, so its normal that he hasnt seen him. Xue Chishou also explained. ? Lin Hui, who had already begun to change into work clothes at this time, continued: "In the second half of last year, I followed Chang Gong in the 606 Institute to perfect the design of the turbojet 14 compressor. At the beginning, we also had many opinions on his decision to completely overturn the high-pressure compressor design and start over. But later It proves that Chang Gongs decision is completely correct. So this time I believe that there is nothing wrong with the conclusion he gave, but I think some comrades still have concerns about the judgment of regular workers. Aircraft disassembly and maintenance is a delicate job, and we cannot let everyone work with emotions. ?These words made the real owner Chang Haonan a little embarrassed. ?However, he also knew that at this time, Lin Hui''s choice to stand up was quite beneficial. In-situ inspection is the method with the least interference from external factors and the most convincing method, because the disassembly of the aircraft itself will inevitably have a certain impact on each component. Sometimes it is difficult to determine whether some small traces are from the test or the disassembly process. left in. Soon, Lin Hui, who was well prepared, walked into the testing workshop with a flashlight and a camera. A group of people followed closely behind. I saw him looking at the rectangular air inlet of prototype No. 1001 for a few times, then holding up his hands, half of his body got in deftly. Within a few seconds, the whole person had climbed completely into the air intake. I have to say that the rectangular adjustable air intake still has obvious advantages at this time. If it is a DSI, the bag at the lip of the air inlet must block people. A few minutes of silence followed. There are somestrangewhite marks on the surface of the fan blades! There are also some on the inner wall deep in the air inlet. The condition of the low-pressure compressor...cant be seen clearly..." The sound coming from the air intake had a very thick echo, which made everyone''s hearts sink. ?Especially Xue Chishou and Song Wencong, the two of them almost lost their composure and lay directly on the side of the air intake. The former even shouted directly inside: Xiao Lin, can you determine the nature of those white marks? Are they injuries or something else? "Wait a moment" ?Lin Hui turned around with some difficulty inside, held the flashlight in his mouth, and used his free hand to wipe hard at the junction between the root of the air intake and the engine. These marks can be wiped off. It should be some kind of... powder. I cant see clearly whether there is any damage. I collected some white things, you can take a look when I go out later... A few minutes later, Lin Hui, who was already sweating profusely, finally emerged from the air intake again, holding a piece of paper in his hand. Thats it. There is some fine silvery white dust on the paper, mixed with some metal wires and the like. "What is this..." Song Wencong dipped his finger into it and put it in front of his eyes, frowning and observing. Like metal scraps? Some people soon speculated. Zhou Ziquan, director of the flight test station, felt dizzy immediately, and then stood up and assured categorically: I guarantee my party spirit and personality that there are absolutely no foreign objects in the test workshop. We have even controlled the dust indicators, and metal debris is absolutely impossible! Regarding this point, before the test drive started, everyone personally checked it. Indeed, as he said, the on-site environment fully met the test requirements. "Anyway, this proves that the hidden danger does exist. Let''s take these powders for testing first to see if they are metals, and if so, what metals they are." Even though Xue Chishou was under great pressure that could be seen with the naked eye, he still gave the command calmly: The remaining people, take the aircraft back to the assembly workshop and prepare for a thorough investigation! At this point, no one expressed any objections. ?So the married daughter returned to her parents home in only half a day. As witnessed by almost everyone participating in the test, the assembly shop showed amazing efficiency and dismantled several important parts of the aircraft that night. The most important thing is naturally the engine. ?Although Factory 132 does not have the ability to completely disassemble and assemble turbofan engines, it is not a problem to disassemble and inspect just a few parts such as the fan and the first three-stage blades of the low-pressure compressor. Report to Mr. Xue, after inspection, it was found that different amounts of white powder were found on the engine fan blades and the first two stage blades of the low-pressure compressor. After cleaning, flaw detection was performed, and no obvious signs of damage were found. "The fourth-stage blade of the AL31FN low-pressure compressor corresponds to a set of 400 chute casing processing annular chambers, so we cannot disassemble this part for the time being. However, considering that the surface of the third-stage blade is normal, it indicates that the on-site treatment is timely. , the impact is controlled within a small range. The report by Xu De, the person in charge of the general assembly, immediately relaxed everyone''s tense hearts. In any case, the engine did not suffer irreversible fatal damage. The results of the tests on those powders came out almost at the same time. These powders are titanium aluminum alloy chips, the main components are Ti-8Mo-8V-2Fe-3Al, and Ti-6Al-4V. ?Lin Hui handed the test report in his hand to Xue Chishou, "From the composition point of view, it should be a mixture of TC4 alloy and TB3 alloy that are widely used in aviation fasteners. There were even large-sized debris with a particle size of about 1 mm at the end of the inlet. If the experiment was continued at that time, , if these debris enter the engine, the consequences will be disastrous. " Liulika has only delivered the first batch of two AL31FNs to Factory 132. One is installed on Machine No. 1001, and the other is planned to be used in Machine No. 1003 being manufactured (No. 02 is a static testing machine and does not require subsystems outside the installation structure). If one is scrapped during the ground test, then even the best result will have to postpone the subsequent first flight. If a serious accident occurs to the engine, it may even cause damage to the prototype itself, and the impact will be immeasurable. After reading the summary report, the conference room fell into silence. After a few minutes, someone finally spoke. I think Chang Gong should be allowed to say a few words. I think so too. I agree! This 606 Institute engineer (whose name is not Lin Hui, of course) who took the initiative to ask to go in and inspect the engine blades after the first test run is real. It can be said that in reality, this person''s carefulness largely saved the life of the engine. If the first prototype of the J-10 takes to the skies with this very hidden problem, the consequences may not be as simple as destroying two engines. I pay tribute to these senior engineers. (End of this chapter) Chapter 320 Ground testing and acceptance, and the birth of the General Equipment Department Chapter 320 Ground Test Acceptance and the Birth of the General Armament Department After determining the crux of the problem, the supporting manufacturers quickly received relevant instructions to update the product process. At the same time, they were sent the set of drawings drawn by Chang Haonan. Since there was no need to make any improvements to the workpiece itself, just three days later, several new spherical one-way valves were delivered to Factory 132, which had already disassembled the aircraft and was conducting a comprehensive inspection of the aircraft cavity. ??Although it has been determined that the cause of this engine test failure is not within the body, the results of the entire round of inspections are still quite shocking. Thanks to the upgraded new testing equipment, the foreign objects detected by Factory 132 from various deep holes and narrow cavities include but are not limited to broken rivets, bolts and nuts, metal shavings... In short, although it does not directly affect flight safety, it is definitely not a good thing. Furthermore, considering that all aviation industry system manufacturing plants use the same old processing and quality inspection standards, then I am afraid that the situation of several other brother units is not much different... In the past, those old second-generation machines were relatively rough, with low craftsmanship and quality requirements, so the problem might not be that big. Now everyone is busy switching to the production of a new generation of combat or auxiliary aircraft, and it is unacceptable to continue like this. So the Quality Culture Month activity of Factory 132 was quickly extended to the entire system... Leaving aside this movement, which has a far-reaching impact on the future development of the aviation industry, for the No. 10 project team, the next core task is to restart the previously interrupted engine operation. Prototype No. 1001 was once again pulled out of the assembly workshop and delivered to the test workshop of the flight test station. It is still the original work station and the previous preparation process. ?Although Chang Haonan has not been working for a long time, the number of projects he has actually participated in is even comparable to that of Song Wencong, the oldest person here, so he is naturally familiar with these processes. Except for some parts that must be signed by the relevant person in charge of the 611 Office, he can direct many contents. ??More importantly, with the performance of turning the tide during the last test run, the staff of both Factory 132 and the test flight station paid more attention to Chang Haonan''s opinions, and would even take the initiative to come to him to ask for help. Just like last year in Shengjing. He can get a higher starting point, but prestige must be established slowly. Is the same engine used this time? Chang Haonan looked at the No. 1001 prototype that was being finalized through the thick window glass and asked Yang Wei next to him. "Yes, your surge monitoring system worked in time last time and controlled it before the engine speed increased to 70%, so some really destructive large remnants have not been sucked out, only a small amount of metal debris. It affected the first two stages of compressors. After inspection, there was no structural damage and they can continue to be used. " The latter smacked his lips and replied with trepidation, "It''s really scary... The blades of the AL31FN engine are actually quite resistant to foreign objects. Without your system, even if the ground test car is completed, the engine has been irreversibly damaged, and there is a high probability that it can still be used. The disease persists. If there is no problem with the apparent data, we may not dismantle the aircraft for inspection. If the prototype aircraft comes into the sky with such hidden problems..." ?This is a cognitive problem that will inevitably be encountered in the process of cross-generation upgrades, such as propeller to jet, subsonic to supersonic, mechanical flight control to fly-by-wire flight control... ?This type of upgrade is no longer entirely a quantitative change brought about by technological progress, but involves completely new areas that have never been explored in the past. It is normal for some mistakes to occur and even some costs to be paid. ?In the original timeline, this hidden danger was eventually discovered by Lin Hui, who volunteered to get into the intake duct to inspect it, and was solved at the cost of scrapping two AL31FN engines. Now with the help of Chang Haonan, Project No. 10 did not cause too serious losses in the same place. The saving of two engines is secondary. More importantly, it is conservatively estimated that the first flight node will be advanced by at least half a year as a result. Thats good. In this way, the progress of Unit 1003 will not be affected. After the first flight, the progress can be accelerated..." ?While the two were talking, the engine of Unit 1001 had been successfully started again and was running at idle speed. 10%20%30% Following Zhou Ziquan''s command, the engine speed increased steadily, and soon reached the last threshold of 60%. Zhou Ziquan, holding the walkie-talkie in his hand, took a deep breath. Although intellectually speaking, the problems that caused the failure of the previous experiment have been completely eliminated, there is still a bit of a psychological shadow when we get to this place. Chang Haonan, who was not far away, noticed that the other party''s forehead was covered with a layer of fine sweat. ??In mid-June, the temperature in Chengdu was already quite high. Everyone was wearing the required long-sleeved work clothes and crowded into a control room that didn''t even have air conditioning. The environment was indeed quite bad. The speed is increased by 70%! There was not much nervousness that could be heard in Zhou Ziquans voice. As a test commander, he must be a good "Dinghaishenzhen". On the screen of the data recording computer, the engine speed was stable at around 70%. Everything was normal, and the surge monitoring system did not alarm again. Although it was not yet time to open the champagne, the operator in front of the computer had the corners of his mouth raised unconsciously. The following part is naturally a matter of course. Speed ??speed increase, 100%! When the engine finally reached full power and ran smoothly for five minutes according to the test standards, the entire control room finally erupted in cheers. Turning it on will not further increase the speed. It only injects fuel into the high-temperature gas in the afterburner behind the turbine for supplementary combustion to increase the gas flow rate. Therefore, the engine startup test of the prototype is completed when the speed reaches 100%. . The afterburner test needs to be carried out on a more open runway, and is usually put together with the rolling test before the first flight, which is a later matter. The roar in the workshop outside gradually stopped. As the engine speed and thrust return to zero, the power supply to the entire machine is removed, which also means that this test is officially over. Song Wencong, who finally had a smile on his face, picked up a loudspeaker from the side and shouted loudly at the scene: Now, I announce that the engine start test of the J-10 aircraft was a complete success! The surging crowd quickly surrounded Chang Haonan, and then... I dont know who took the lead, but in short, he was lifted up and thrown into the air... After celebrating, Chang Haonan, who finally broke away from the crowd, straightened his messy clothes and found Song Wencong and Yang Wei who had already gathered together to analyze the data. Once the ground test is completed, can the preparations for the first flight and the setting of the estimated timetable be put on the agenda? It goes without saying that the significance of the J-10 to China''s aviation industry is no less important than the first "Type 56" fighter that rolled off the production line 40 years ago. Therefore, Chang Haonan is naturally looking forward to sending the No. 1001 prototype into the sky as soon as possible. "The progress of the flight control upgrade here is relatively optimistic. The active stability control system written by Chang Gong uses very sophisticated mathematical principles, so the control idea is not too complicated and there are no particularly difficult parts to handle. It is expected that by the end of this month, It will be done by the beginning of next month at the latest. ??Yang Wei''s ability in flight control goes without saying. Even Chang Haonan would be hard-pressed to catch up without cheating. Subsequently, Song Wenchong also raised his head and added: "Well, the No. 02 ground verification machine has been completed. I contacted the comrades from the Strength Institute two days ago. They will rush over from Haojing to complete the ground vibration test and static test of the whole machine, and then pass the National Defense Science and Technology After acceptance by the Working Committee and the General Equipment Department, preparations for the first flight can begin. This process will not take too long. According to my experience, if it goes well, it will be expected to be from August to September. For the people of China Airlines of his generation, it is a surprise if there are no surprises in the ground test, so the current efficiency can definitely be regarded as a surprise. General Armament Department? ?Chang Haonan caught a noun from the answer just now. When the 83rd Project was carried out before, the only party responsible for accepting these processes was the Science and Technology Commission. In his impression, the General Armament Department at this time was still a part of the General Staff Department, so work including the acceptance of key military projects was carried out by the Chief of General Staff. This position was not specifically responsible for military technology, so Reviews are generally only conducted during finalization and delivery to the troops. The independent General Armament Department should not appear for another two years. "Yes, the newly established department of the military in April this year is responsible for the research, development, production, and use of weapons and equipment in the entire army. In other words, all kinds of things used in war, except clothes, hats, shoes, and socks, are all They manage. Speaking of this, Song Wencong said in a joking tone: Speaking of which, the idea of ??establishing such an organization has long been in the mind, but the fact that it can move so quickly is largely due to you. "Clam?" Chang Haonans head is filled with questions. Since he was reborn, he has not had much direct interaction with the military system. How can this be related to him? "Originally, Director Ding Gaohengding should have resigned from the Science and Technology Commission at the end of last year, but because of you, the superiors believed that the Science and Technology Commission is currently in a stage of rapid development and change, and it is not suitable for a sudden change of generals, so even the transfer order was not The Minister Cao Gangchun who got it suddenly had no place to go, and his original position was already occupied by someone else. In the end, in order to solve this personnel problem, the General Armament Department, which had been discussed for two years but was still in the process of being established, was simply replaced. It''s been pulled..." (End of this chapter) Chapter 321 paris air show Chapter 321 Paris Air Show It was the same day that the J-10 completed its engine ground start-up test. 8,500 kilometers away in the north of Paris, over Le Bourget Airport, a twin-engine propeller aircraft with a white body and painted Chinese and Italian flags on the left and right wings was aiming at the runway and slowly descending under the command of air traffic control, preparing to fly. landing. On the plane was a XAC delegation led by Yi Yuanhe, chief engineer of the 603 Institute. ??This trip was specially invited to attend the 42nd Paris Air Show that is about to open. What they were flying was naturally the star product brought by the aviation industry this timethe first Chinese aircraft to pass the airworthiness certification of all 15 EU member states, the MA-60. For those familiar with the situation, what is more concerning about this model is that among the 15 countries, five countries, France, Germany, Belgium, the Netherlands and Luxembourg, have directly recognized the airworthiness of regional aircraft in the form of mutual recognition. Approved the review report made by China CAAC. This is a feat worldwideairworthiness mutuality can greatly reduce unnecessary administrative processes and waste of resources, and increase the speed of the development of the aviation industry and the iterative upgrade of civil aviation aircraft models. ? FAA and JAA have discussed the feasibility of a similar approach, but it failed to take shape due to fierce competition and differences of opinion between the two parties. No one would have thought before that it was Europe and China that first figured out the feasibility of this route. Most people in the industry are optimistic about this, because since this agreement, which is obviously more beneficial to China, can be signed, it will inevitably mean that the European aviation industry represented by Airbus has obtained a sufficient share in the booming Chinese market. . In the minds of many Europeans in this era, they should become the second pole in the world independent of North America. Therefore, as long as Boeing can do it, they can negotiate with China, Russia, or even India. Of course, many media and commentators believe that although airworthiness certification is a beneficial thing, considering Chinas aviation technology level, Europe is most likely making a bad move. ??If a large number of problems or even accidents occur in the certified Huaxia aircraft models, it will be a huge blow to the European aviation industry, which is already in a period of rapid development. In short, its a mixed bag of praise and criticism. ?This is also one of the main purposes of allowing MA60 to fly over thousands of miles after six stops. ?After the agreement between China and Europe was reached in April of this year, Paris, one of the two major air shows in Europe, extended an olive branch under the instigation of Airbus and Alenia Aerospace. Although this is not the first time that China has participated in the Paris Air Show, as a special invitee this year, the specifications and treatment it received are obviously completely different. The organizer has arranged an area of ??about 1,000 square meters next to the C position of the exhibition area as the exhibition location of China Aviation Industry. The area is not large, but it is a prime spot with the densest flow of people. To this end, Factory 172 specially accelerated the final assembly progress of the No. 03 prototype, and finally made this new aircraft catch up with the air show schedule. A few minutes later, MA60, numbered B6003, touched the ground lightly, decelerated and entered the taxiway, and finally stopped at the prepared position according to the guidance. Around it, other Chinese models that had set out earlier and arrived by sea have been arranged. ?Yi Yuanhe got off the plane and shook hands with the team leader Lin Weixuan who was already waiting here. Preparations for the air show are in place, and we are just waiting for our star to arrive! ?Lin Weixuan looked at the MA60 that had just stopped the propeller and said. Organizationally, please rest assured that we will definitely present the aircraft in its best condition to our European counterparts and audiences! According to the plan, MA-60 will have a 15-minute flight demonstration opportunity on the morning of the second day of the air show. This is also the main reason why Yi Yuanhe, as the chief engineer, must follow him in person. Okay, okay, okay! This is the first time that China is not participating in a foreign air show as a supporting role. Lin Weixuan, who has been in this industry for decades, was naturally very excited. He said three good words in a row, and then pulled Yi Yuanhe to go. Go to the side, Let me show you the overall situation of this air show. In order to repay the goodwill of the organizers, the aviation industry did not bring any imitation products like the Z-9 this time. Therefore, apart from the many models presented as usual and the MA-60, the only real ones at the exhibition were the aircraft. 12. K8 and J-7MG. Originally, China Aviation Technology hoped to let the J-7F participate in the exhibition, but this model is so popular that in addition to launching user minibuses, several countries have shown strong interest in it. The current two prototypes have also There were test flights and demonstrations, and they were really exhausted and couldn''t spare any time. The main strength of Factory 132 was concentrated on a few J-10 prototypes, and they couldn''t come up with new aircraft for a while, so they had to give up. Since the air show is about to open, most of the exhibitors have completed the layout of their exhibition areas, and the two of them were able to preview the unique skills of their international counterparts in advance. The core position of the air show is naturally left to the French. Two huge four-engine dual-aisle passenger aircraft occupy most of the space in the field of vision. They are two new variants of the A340, A340-500 and A340-600. ?According to the information on the exhibition board, these two models are 320-seat and 380-seat respectively, and the range can still maintain the same 13,500 kilometers of A340-300 or even longer. Tsk tska 370-ton airplane can fly 13,500 kilometers ??Yi Yuanhe looked at the two passenger planes in front of him, then looked back at the MA60 parked in his own exhibition area not far away, with a bit of envy in his eyes. We still have a long way to go "Take your time, you have done a pretty good job, let alone going further, even last year, we would never have dreamed of having an aircraft pass the European airworthiness certification... You, Lao Yi, deserve the most credit. " Lin Weixuan next to him opened his mouth to console him. Its a great achievement...I dare not say that... Hearing this comment, a young face appeared in Yi Yuanhe''s mind, and he quickly waved his hand. This era belongs to young people now, so we can use some of our remaining energy. ??Although Chang Haonan''s participation in the MA60 project is public information, it is impossible for everyone to know the details of his specific contributions, so Lin Weixuan only regarded Yi Yuanhe as being modest and did not ask more questions. ?In addition to passenger aircraft, another highlight of the French exhibition area is the Rafale fighter jet, which is still in prototype form. ?There are not many opportunities to observe other countries'' fighter jets at close range, so Yi Yuanhe also moved closer to take a look. This design is so weird... Its obviously a big airplane, but why does the air intake compress the nose so much? It feels like the space left for the radar is about the same as the J-7F in the 611th Institute... Yi Yuanhe pushed up his glasses and was a little confused about the design of Rafale. ?However, it is naturally impossible for anyone to answer this kind of question. His own specialization is not in fighter jet design, so he did not get any results after looking at it. The exhibition areas of several other European countries were relatively boring. Only the EF2000 Typhoon fighter jet presented by the United Kingdom was a highlight, and the rest were basically familiar old faces. Due to the merger of Boeing and McDonnell Douglas, they were completely absent from this air show, so the position that was usually arranged opposite, where they competed with Airbus, was left to me. Do you want to go and see it? Lin Weixuan suggested, sensing that Yi Yuanhe was a little uninterested. (End of this chapter) Chapter 322 The Russians also envy us (Additional update 55 for the leader [who is just a walk-on]) Chapter 322 The Russians also envy us (Added update 55 for the leader [the side hustler]) ??The Russian exhibition area is located on the other side of the taxiway from France. Since it is customary to prepare it for Boeing and McDonnell Douglas, the area is really large. ??The old guys also lived up to the organizer''s arrangements. They basically took out the best stuff from the bottom of the box. Located in the center of the exhibition area is an IL-96-300 that was absent from the last Xiangzhou Air Show. ?Although it is smaller than the Airbus A340-500/600, it is a serious four-engine wide-body passenger aircraft anyway, and it can barely match the alignment mechanism. As for the other Tu 204-100S, it is an old friend whom I met last year. ?However, Yi Yuanhe was more interested in the latter this time. As the chief model engineer of the 603 Institute, he had heard some rumors from the Science and Technology Commission level before. After the superiors have given up hope on the MD90 project in cooperation with McDonnell Douglas, in order to continue to promote the domestic large aircraft industry, and more importantly, to maintain Hufei, which has acquired certain capabilities, from falling apart, the current plan is to refer to the 11th The project model gradually introduces the production line of Figure 204/214, and requires the Tupolev Design Bureau and the Aviation Industry Corporation to cooperate to standardize and customize domestically produced passenger aircraft according to requirements. Considering the current predicament of the Tupolev Design Bureau, this proposal is obviously quite feasible. Of course, China''s technological accumulation in large aircraft is even weaker than that of fighter jets, and it may be difficult to obtain conditions that are extremely beneficial to itself like Project 11. ?But no matter what, it will definitely be easier to talk to than Boeing after acquiring McDonnell Douglas in the future. With the attitude of going to see something, Yi Yuanhe walked directly over Lin Weixuan, who was half a step in front of him, and walked to the Tu 204. ??There are fewer staff in the Russian exhibition area than expected. Basically there are only a few staff who are watching the venue to clean and maintain order. What is even more surprising is that after seeing their IDs and confirming that they were fellow exhibitors from China, the other party directly invited them to get on the plane and have a look. Generally speaking, unless the passenger aircraft at the exhibition are in a very early stage, they will be open for viewing, but such enthusiastic invitations are indeed rare. Yi Yuanhe was not polite. He had studied in the Soviet Union and could speak Russian. After a brief communication with the Russian staff, he took Lin Weixuan directly to visit the two planes. Especially the cockpit. The cockpits of the IL-96-300 and the Tu-204-100S use almost the same style design and avionics equipment. Although the gap with their Airbus and Boeing counterparts is still relatively obvious, from the perspective of the mid-to-late 1990s , not entirely behind the times. The only fly in the ointment is that both aircraft still retain the design of a three-person crew, that is, the pilot, co-pilot and mechanic, while the two new models of Airbus A340 just seen opposite have been upgraded to a two-person crew. . For passenger aircraft that need to be operated commercially, one more person is a huge expense. ?Yi Yuanhe tried to sit in the main driving position in Figure 204 and held the steering wheel in front of him to feel it. Can the cockpit be upgraded to a two-person cabin? He turned around and asked the Tupolev Company staff behind him in Russian. The latter nodded: The company already has relevant plans, and it is expected that the next major upgrade model will use a two-person cockpit. According to industry slang, this answer is basically equivalent to not being able to do it in a short period of time. After all, given the current situation of the game, God knows when the next big version will be released. ?But just when Yi Yuanhe was about to say something, the other party added: However, we are planning to launch a sub-model using all Western equipment, the Tu 204-120. The basic performance is similar to our Tu 204-100S, but the degree of automation will be higher, and of course the price will be more expensive. Yi Yuanhe shook his head. Changing avionics may be more attractive to some Western or pro-Western customers, but as far as China is concerned, the introduction of the production Tu-204 was originally to avoid risks and obtain complete 100-ton aircraft manufacturing capabilities. If it is for advanced To choose a large number of Western subsystems is to sacrifice the basics and pursue the last. In any case, there are still a large number of aircraft with three-person crews in civil aviation, so it is not unacceptable in a short period of time. ?As long as the price of the plane is right. ?Thinking of this, he asked again: Then this model is the Tu 204-100S. How much does each aircraft cost? ??The seemingly simple question actually stunned the Russian guy next to him.?????Actually, this is separated by lines such as mountains. ?Yi Yuanhe is an expert in aircraft design, but he actually doesnt know how to sell aircraft. In aircraft transaction contracts, the bare metal price is often only a small part of the total price, while the bulk is other services included in the contract, such as pilot and ground crew training, parts supply, warranty methods and warranty periods. ?So not talking about these and only talking about price is a hooliganism. ?However, he finally got a less precise answer. According to the purchasing habits of general airlines, the price of spare parts and maintenance services is approximately between 32 million and 39 million U.S. dollars. Later, Yi Yuanhe realized that he actually had no relevant concept. So I had to switch to Chinese and ask Lin Weixuan, who was confused because he couldnt understand the Russian conversation: Old Lin, the person just now said that the price of their aircraft is about 32 million to 39 million U.S. dollars. How does it compare to a mainline passenger aircraft? The latter then knew that Yi Yuanhe had just made an inquiry. If its less than 40 million...its pretty cheap. ?After thinking for a while, Lin Weixuan replied: We purchased a batch of Boeing 757-200s last year. The overall performance is similar to this Tu-204, and the price is US$74 million per unit. Airbuss latest A321, 80-ton class, has a unit price of more than US$70 million. This is a very intuitive comparison. There must still be some water in the quotation given by the Russians. If localization can be completed in the future, the cost can be reduced even lower. At that time, it can even be used as a cargo aircraft or a special aircraft platform. So Yi Yuanhe secretly recorded this matter in his heart. In addition to the two large aircraft, the Russians also brought a latest Flanker demonstrator aircraft numbered 711, and a front-line bomber named Su-32FN. As a military aircraft, it is naturally not open to the public like a passenger aircraft, so we can only take a look at it from a distance outside the fence. ?Both aircraft have a three-wing design, especially the 711 aircraft which also uses a three-dimensional vector nozzle, which will surely make a huge leap in maneuverability. Perhaps it can also be used as a future improvement direction for Project 11 After leaving the Russian exhibition area, Yi Yuanhe took out a notebook and wrote down all the things he had just thought about. ?However, when they walked around the air show site and returned to the location of their own aircraft, they discovered a scene that made people laugh and cry - A group of old men with ID badges of Russian exhibitor staff, like Yi Yuanhe and the two just now, gathered around the MA60 display board with great interest and stopped to watch, and it sounded like they were having a rather heated argument. discuss. No wonder there werent many people over there just now, and they all came to us after a long time ?Yi Yuanhe straightened his clothes and walked forward, but in the middle of the mess, he heard a few words in Russian clearly. The display board says that this type of aircraft has passed the airworthiness certification of all 15 EU countries. I want to know how they did it? "Not only that, a colleague of mine went to Tashkent to receive Chinese customers before. I heard from them that China and Europe directly signed a mutual recognition of airworthiness certification for regional aircraft below a certain take-off weight and number of seats. That means that in the future, China Models that have passed the border inspection can be directly operated in Europe. The tone of the second voice was full of envy: It would be so comfortable if this condition were given to us... In an instant, Yi Yuanhe suddenly realized something. China does not have any leverage in terms of large aircraft technology. But there are places outside technology. And its crucial. (End of this chapter) Chapter 323 Those who wish take the bait Chapter 323 Those who are willing take the bait ?Thinking of this, Yi Yuanhe quietly took off the ID tag hanging around his neck and put it in his pocket, and motioned to Lin Weixuan next to him to do the same. ? Then he pulled the latter closer to a distance that would not attract much attention, pretending to observe the Y-12 next to him, but his attention was still focused on the crowd of onlookers in front of the MA-60. ? When he was visiting the opposite exhibition area, Yi Yuanhe also had a glimpse of the regional aircraft Il-114 brought by Ilyushin Company from a distance, which is generally at the same level as the ATR42 and MA-60. ?At the time, I didnt pay much attention to it. After all, the market for 40-50-seat regional propeller airliners is already quite limited, and it is impossible to operate many overlapping models at the same time like mainline airliners. But if you look back and think about it carefully, this shows that the idiots also have export needs for regional aircraft. Of course it is impossible for China to cultivate a competitor for itself, but the MA-60 is considered a relatively small level even among regional aircraft. You must know that in the previous package agreement signed with the EU, the upper limit of mutual recognition of airworthiness was 100 seats and 50 tons, which has basically touched the edge of small mainline passenger aircraft such as the Airbus A318... ?Yi Yuanhe felt that he should pay attention to whether the Russian side, especially the Tupolev Design Bureau, had relevant models that met the requirements. ?Although the path of exchanging technology for technology is currently unworkable, exchanging policy for technology can be regarded as everyone getting what they need, and it is always a lot more proactive than just providing money. ?Yi Yuanhe listened with open ears and became excited, but it was painful for Lin Weixuan next to him who did not understand Russian. ? Out of curiosity, he could only watch a group of Russians enthusiastically watching his plane. For him, the general leader of the air show, it is a good thing that foreigners are interested in one of his participating models, and if a photo of this scene is taken, it can be used as a highlight in subsequent publicity. ??But no matter how good the photo is, it must be accompanied by corresponding text. The people who promoted the propaganda this era still have a little bottom line. There is no picture of the beginning, and the rest is all relying on this kind of hard work. ?Therefore, after scratching his head for a long time, Lin Weixuan finally couldn''t hold back his instinct of seeking knowledge and gently patted Yi Yuanhe on the shoulder: Lao Yi? What are those Russians talking about? They also want to buy our planes? The latter, who was lost in thought, turned around and breathed a sigh of relief when he realized it was one of his own: Thats not the case. They also have similar models. Lao Maozis economy is in dire straits and aviation fuel is not valuable. The advantage of our aircrafts low fuel consumption cannot be fully utilized. ?Yi Yuanhe waved his hand and denied Lin Weixuan''s somewhat outrageous guess. This makes the latter feel a bit regretful. You should know that Russia is also Europe in a geographical sense. In May this year, Airbuss decision to purchase icing water spray simulation equipment from China caused a huge uproar in the aviation industry system. The frustration that had been suppressed by aerospace colleagues was wiped out. ? And if the whole machine can be exported to Europe... employers ?However, Yi Yuanhe immediately changed the subject: "What they are interested in should be the agreement we have reached with Europe. Someone just proposed that they want to obtain EU certification indirectly by obtaining our airworthiness certification, especially for some subsystems where they have certain advantages. As long as they pass the approval Guan can become an international supplier. I just want to ask you, is this operation feasible according to the detailed terms in the agreement? As a person who specializes in technology, he can only have a general understanding of aviation regulations and related policies. Real details still need to be asked to professionals. After hearing this, Lin Weixuan frowned and thought for a moment, then shook his head: "No, the mutual recognition objects stipulated in the agreement are limited to complete aircraft products developed by enterprises within our mainland. As for subsystems, they can only be certified in the form of being installed on regional model aircraft that meet the requirements, and for products that clearly exceed The EU has the right to review the aircraft design based on aviation common sense. What is a design that clearly transcends aviation common sense? Yi Yuanhe was a little confused. For example, replacing the MA-60 with two 10-ton thrust turbofan engines. ?This clause is obviously to prevent someone from using this loophole to gain mutual recognition for products outside the scope. What if it is a jointly developed model? For example, if we cooperate with Russia to design a new regional airliner, does it fall within the scope of the agreement? This is something Yi Yuanhe has been thinking about since just now. Since the Russians are interested in this matter, it means there is talk. ? Even if Figure 204 itself is not within the scope of the license, it can still be used as a bargaining chip. There is no express provision ?This question obviously made Lin Weixuan''s brain enter an overclocking state, so he answered after a while: But I think we have to at least play a major role in it. This is a good request and should be resolutely implemented. Hearing the answer he wanted, Yi Yuanhe finally smiled. Old Lin, go and prepare the MA 60 display materials again, and create a separate page to introduce the main contents of the agreement. Ready again now? ?Lin Weixuan had an expression on his face that said, "I''m afraid you''re not kidding me." In this era, everyone has limited experience in participating in foreign exhibitions. All promotional materials for China are prepared in China one month in advance and then brought over. The Paris Air Show will open tomorrow, allowing him to get a brand new set in one day. When I came out, it was indeed a bit more intense. Yes, its very important. If you cant make it tomorrow, you must be ready before the flight show the day after tomorrow. Yi Yuanhes attitude is very tough. Okay, Ill contact the local chamber of commerce to see if it can be expedited in France. ?Lin Weixuan, who realized the seriousness of the matter, also put away his smile, nodded solemnly, and then immediately turned around to leave. But he was called from behind again. In order to take care of audiences around the world, write in several more languages, especially Russian, which must be added! Facts have proved that DDL is indeed the primary productive force. ??When the air show officially opened at noon the next day, Central European Time, the display panel that originally stood in front of MA60 had turned into five large pieces connected together. In addition to the performance of the aircraft itself, the content also includes an introduction and explanation of the manufacturer and legal issues. It clearly states that regional passenger aircraft with 100 seats or less than 50 tons designed and produced by China Aviation Industry Corporation can directly fly in the EU. Registered and operating in 15 countries. ?With a sharp roar, the Su-37 prototype numbered 711 began its flight show. For the onlookers watching the air show, what is more interesting to them is naturally the fighter jets. ?Due to the absence of the American manufacturer, the YF22 prototype that was once rumored to be displayed failed to appear. Naturally, the Su-37 became the star that received the most attention at the scene. As a dazzling work of Sukhoi Company, it did not disappoint the audience. It displayed a series of jaw-dropping movements such as pendulum, tail rush, falling leaves and so on at a very low height, which attracted bursts of cheers and applause. However, just when most people''s eyes were focused on the sky, Valentin Klimov, the model manager from Tupolev Company, stopped in front of the small Chinese exhibition area and stared at the company. I looked at the five large exhibition boards together for a long time. He clearly remembered that when he came over at noon yesterday, there was no such detailed introduction. Chinese exhibitors even thoughtfully prepared all six United Nations working languages. ?This makes it difficult for Klimov not to suspect that the other party is fishing in a targeted manner. But even so, he was attracted by the last part of "Legal Questions". There is nothing I can do, the bait is too fragrant and I cant help it. Suka ??Klimov pushed up his glasses, and he, who was always well-mannered, uttered a classic Russian quintessence: The Chinese are actually able to negotiate this kind of agreement. Did they bribe all the members of the European Parliament... (End of this chapter) Chapter 324 Tupolev and MiG decide to sell themselve Chapter 324 Tupolev and MiG decide to sell themselves ??Although it is difficult to understand how the Chinese did it, a photocopy of the last page of the agreement signed by both parties was posted on the display board. Considering that Paris is also the territory of a core member state of the EU, the possibility of using EU resolutions to swindle here is still not very high, which is why Klimov does not believe it. This is a big deal for the Tupolev Company, which is already going crazy. ?So he jogged all the way back to his country''s exhibition area and pulled Vladimir Kravchenko, the somewhat idle head of MiG''s commercial department, in front of the MA-60. After the disintegration of the alliance, the Sukhoi Company, which had lost its restrictions, opened up its supply of heavy-duty Su-27 fighter jets to almost all countries willing to pay, directly seizing almost all of the blue ocean market, and MiG''s corresponding product MiG Although the price of Ge 29 can be a little cheaper, it is far from its big brother in terms of performance and potential. ?As long as these two types of aircraft are put together, even a layman who knows nothing about aviation will know which one to choose. In the end, only a very small number of users who really couldn''t afford it, or who thought there was no need to use a heavy fighter, chose the MiG-29. Having made money, Sukhoi quickly invested the funds into improving its leading products and launched a series of new sub-models such as the multi-functional Su 30 and the improved Su 27SM, which made it impossible for MiG to catch up. . ?Su 37, who is flying freely in the sky at this moment and attracting many eyeballs, is also one of them. Few people know that the aircraft numbered 711 is not actually a mass-produced model, but a demonstrator in a high-mobility technology demonstration project, used to test the application of vector engines with increased thrust and three-wing static stability. After adding all the technologies that can be used, such as the stable design and cockpit side bars, to what level can the maneuverability of an aircraft be improved? ?But this is not important anymore. By 1997, MiG itself had lost all hope. It realized that it had no future by continuing to export fighter jets, and began to consider transitioning to other tracks. The commercial machine department that Kravchenko is responsible for is an unfortunate product of this idea. MiG had almost no experience in designing passenger aircraft or transport aircraft. With the alliance disbanded and no investment left, it would be a complete fantasy to create a commercial model from scratch. So we can only choose to stay together with Tupolev Company, a fellow sufferer. It was during this process that Kravchenko and Klimov met. To put it simply, the content of the cooperation between the two parties is the transformation of MiGs Nizhny Novgorod factory into the production of Tupolev passenger aircraft. Unlike the situation of Sukhoi and MiG, Tupolev did not obtain a factory belonging to his own group during a series of reorganizations in the early 1990s. The Aerostar SP in Ulyanovsk and the Kazan Aircraft Manufacturing Association in Kazan are independent units and are not subject to Tupolev''s control. To make matters worse, after China showed its willingness to purchase the new Ilyushin 76MF/78MF in bulk a few days ago, anyone with a discerning eye can already see that Ilyushin Company will definitely move the production line originally located in Tashkent back to China. ??So the two young men began to flirt with Ilyushin at the speed of light, which made Tupolev, who had no orders for the time being, panicked and angry but had no solution. In order to win over at least one of the manufacturing plants, Klimov finally signaled that he could export the Tu-22M3 bomber to friendly countries. A few years ago, the Chinese Air Force delegation showed some interest in this model. At first they thought this operation would have immediate results. ??However, in the past, you ignored China, but today''s China is beyond your reach. The other party actually said that they are no longer interested in medium bombers. If they can sell the Tu-160, they can consider it. ??Its so funny, lets not mention that it is impossible for this thing to obtain a federal export license. Even if Yeltsin doesnt care, Tupolev will not be able to build a new aircraft at all now. ?So after what he thought was his trump card failed, Tupolev also panicked - ??If we can maintain complete aircraft design and manufacturing capabilities, it may not be impossible to make a comeback in the future. But if it degenerates from an aviation production complex into a mere design institute, it will basically be completely finished. So the two companies, which were on the verge of despair, hit it off and decided to move Tupolev''s passenger aircraft production line to Nizhny Novgorod, so as to maintain a relatively stable production capacity. ?The idea is very good and the execution process is smooth.????The only problem is, there are still no orders. ??A few scattered orders from China can only barely sustain the company''s life, and it is far from being able to come back to life. After losing the relatively closed market of the Economic Cooperation and Development, although Tupolev''s several new models of passenger aircraft are not far behind in terms of performance, they are obviously no longer able to compete with Boeing and Airbus'' complete model series. Whats more, there is also the barrier of airworthiness certification. With the disintegration of the alliance, Russia''s reputation among many third world countries has plummeted, but few countries are willing to purchase a passenger aircraft model that lacks European and American endorsement. Hence, seeing that China and Europe have mutual recognition of airworthiness, Klimov is basically equivalent to a person who is about to drown suddenly having an oxygen bottle placed on his face. ??On the other hand, Kravchenko, who was pulled over by him, was calmer. "Vasha (Valentin''s nickname), I understand you are anxious, but it has been clearly stated above that the scope of mutual recognition of airworthiness only includes regional aircraft, and they must be designed and produced by companies within mainland China. , we can''t take advantage of this loophole..." Why not? ??Klimov turned around and looked at Kravchenko with a determined expression. Actually, when China went to Tashkent to inspect the Il-76 production line, China had private contact with one of our representatives and expressed its willingness to produce Tu-204 series passenger aircraft in their country based on the form of the Su-27. The other partys requirements include the transfer of a full set of technology property rights and the improvement of the aircraft in accordance with Chinese standards, so the company was still hesitant..." Its not that you wait... Kravchenko was stunned when he heard this: In the field of commercial aircraft, arent we partners? How come I dont know about this at all? Also, if you move the passenger aircraft production line to China, what will happen to our companys factory in Nizhny Novgorod? Also, if even the design standards are modified in accordance with Chinas requirements, can your aircraft still be called Tu-204? Wouldnt it be completely sold to them? ?Faced with such a one-button three-combination, Klimov knew that he was in the wrong and was not easy to answer, so he skipped the first question. Ahem There is a saying in our hometown that once you have decided to sell your money, you should enjoy the process. Now our company is about to go bankrupt. We are just selling a few aircraft models. I believe that even if Comrade Tupolev is still alive, he will not have any objections..." "You MiGs, don''t be anxious. First of all, with the level of China''s aviation industry, it is impossible to achieve complete domestic production right away. At best, the final assembly process should be completed first. You can continue to produce parts and subsystems for at least the next ten years. It is not impossible. way out. Besides, as long as the sales of the models are opened, the domestic market will still have to purchase them. Will they not have to be produced in Nizhny Novgorod? No matter what, we have to survive first..." ??Klimov is very eloquent, but it is a pity that he does not know the Chinese existentialist master Mr. Yan Baichuan, otherwise he would have to say "Existence is everything, everything is for existence." Kravchenko opened his mouth. He subconsciously wanted to refute the other party''s statement, but found that there was no way to do so. ?After briefly running through Klimovs logic line in my mind, it even makes sense. ?So it took Kravchenko a few seconds to excuse himself. I understand, you are right. (End of this chapter) Chapter 325 Figure 334 passenger plane and PL-12 air-to-air missile Chapter 325 Figure 334 Passenger plane and Thunderbolt 12 air-to-air missile ??Despite convincing himself to accept the other party''s idea, Kravchenko quickly thought of another question: One more thing, the take-off weight of the Tu-204 is 100 tons, which is completely outside the scope of their agreement... ?However, for the thoughtful Klimov, this kind of thing has naturally been considered before. Picture 204 is their request, of course we also have our conditions... ?He replied with a look of hatred on his face, "The overall design of Figure 334 can be slightly reduced, and then bundled together for negotiation. Anyway, it is impossible for China to directly fly to a 100-ton mainline passenger aircraft in one step. There is an aircraft two levels lower for training, and they must also Will not refuse." Figure 334 is a large regional passenger aircraft with a take-off weight of 45 tons and a seating capacity of 95-110. Compared with traditional regional aircraft such as EMB145 and CRJ200, the biggest advantage is that it uses the same standard cabin as mainline aircraft. Therefore, The comfort is much better than competing products. Since it uses the same series of cockpit configurations as the Tu-204/Il-96, the control convenience and glass degree are both good. ?Of course, the three-person crew was also inherited. Fortunately, the price is as low as ever, only about half of that of aircraft of the same class. ?And as long as 10 seats are cut off and a wholly-owned subsidiary is established in China to engage in first-hand joint research and development, it can fully comply with the requirements of the Airworthiness Mutual Recognition Agreement. Kravchenko next to him almost couldn''t hold back after hearing this answer. ?It doesnt matter if you sell yourself, its still buy one, get one free. Others only ordered one, but you just took out a pair of sisters... He sighed heavily in his heart Its so hateful! Why can''t our company come up with such a model... ? ? MiGs only commercial model aircraft currently available is the MiG 110 designed two years ago, but its positioning is highly similar to the MA60 (MA=Modern Ark) currently in front of us. I am afraid that the Chinese people will not buy it. Fortunately, Klimov does not really intend to completely abandon this hard-won business partner. "Varoja, if we can really reach such an agreement with China, then your factory will be responsible for providing parts for assembly and production technical guidance, and I''m afraid it will last for a while, so after returning to China this time, You may need to mobilize your staff." "this" Kravchenko looked to the side with surprise and a little more emotion. ?Although he is an executive of MiG, he also knows a thing or two about the situation of his old rival Sukhoi. ? As the saying goes, it took forty years for Hedong and forty years for Hexi. This time is not as good as it was in the 1950s. If there is an opportunity to work in China, wherever mobilization is needed, they will rush to go. ?The other party said this, obviously to give them a hand at this critical moment. At the same time that they finally determined this matter, with the gradually amplifying roar, the Su-37 finally completed its performance and landed steadily on the runway behind the two of them. On the other hand, it was not until the next day that Chang Haonan was watching a briefing in an office of the Commission of Science, Technology and Industry for National Defense while watching the opening ceremony performance of the Paris Air Show on TV news - ?After completing the **** for the engine ground test of the No. 10 Project in Chengdu, he returned to the capital with no work at hand. I took the graduation certificate and degree certificate by the way. ?With his current situation, it is definitely not necessary to attend the graduation ceremony on site, but the certificate must be handed over to him. Now, it is the day after he officially received his bachelor''s degree. At last its not a high school degree. As a reborn person, Chang Haonan knew that the Su-37 was just for verification. The relevant technology would be used in the Su-35BM and then the mass-produced Su-35S. In addition, he had seen many of its flights in his previous life. Performance, so naturally I am not very interested. ??The reason why he came over specifically to read the briefing was because he was paying attention to two other things. First, at this air show, the Beriev Aviation Technology Complex () and the Great David Aircraft Manufacturing Company (IAI) signed a contract. The former will be responsible for improving a mass-produced A50 early warning aircraft. It is used to replace the Falcon radar system developed by the latter. The final customer is the Chinese Air Force. It also means that the "Ring Project" has officially entered the prototype manufacturing stage. Although Chang Haonan now has considerable influence, it is impossible to stop a project that has already signed a contract and paid a deposit with just one mouth. All he can do now is follow up on the relevant situation and strive to launch the air police as soon as possible. 200 early warning aircraft, so as to prevent IAI''s behavior of releasing pigeons from affecting the overall progress of China''s early warning aircraft business. ? To take a step back, in this contract, although IAI eventually breached the contract, faithfully completed the aircraft design work and left a lot of technical data, which can be regarded as saving trouble for the future Air Police 2000. Second, Dong Bingyin, the model chief engineer of the Luoyi Air-to-Air Missile Research Institute, also known as the 014 Center, led a team to contact the Russian Onyx Design Bureau at the air show and formally determined the project to jointly develop active radar-guided medium-range air-to-air missiles. The two parties will launch the project on 9B -1348 seeker, they will jointly develop a new 9B-1103M seeker, but the missile body will be completed independently by both parties. ?This project has actually been advanced for a long time, and even the overall design of the missile is close to completion. However, it has been self-funded by the 014 Center before, and it was not officially established until recently. ?In the original timeline, the final result of this cooperation was the two air-to-air missiles, the R77-1 and the Thunderbolt 12, which can be called twins from the same mother. In fact, due to the fact that there are too many high-priority projects at the front and that China''s airborne weapons developed relatively smoothly in the previous life, Chang Haonan has not focused on airborne weapons since his rebirth. I think about it this time because when I was in the 611 Institute, I suddenly saw Yang Baoshu, who was in the advanced stage of lung cancer. Because Dong Bingyin, the chief engineer of Perak 12, also died of a heart attack in June 2000 due to overwork. Compared to Yang Baoshu, who has no chance of recovery, this person''s situation still has a chance to be saved. ?Of course, Chang Haonan himself is very busy now, and it is no longer possible to spare energy to directly intervene in the Thunderbolt 12 project. However, as we did with Thunderbolt 11, it can still be done by providing some key technologies. ?While he was thinking about this matter, the door of the conference room was suddenly pushed open. The person who walked in was Huai Guomo, deputy director of the Science and Technology Commission, wearing a summer uniform. Director Huai? Chang Haonan put down the information in his hands and raised his head, and found that the other party was still holding a large pile of portfolios. He obviously wanted to talk about something with him, so he quickly stepped forward to take it and put it on the table. Its not about the deputy director of the Science and Technology Commission, but the main reason is that Huai Guomos health is not very good and he is really struggling. I heard from the teacher before that you led a team to conduct inspections in Uzbekistan and Russia "I''m back now. I came here today just to talk to you about this matter." Huai Guomo took out his handkerchief and wiped the sweat from his head, then sat on the chair next to Chang Haonan. Just as he was about to say something, he caught sight of the information on the table out of the corner of his eye. Perak 12...Lao Dong has been working on this project for almost 5 years, and it has finally been achieved..." As the deputy director of the Science and Technology Commission, he naturally knows about the existence of this project. In fact, Huai Guomo witnessed the ground power test of PILI 12 at the end of last year. Why, are you also interested in this project? Additional update for last months monthly ticket holder [RockU Unruly Soul] (End of this chapter) Chapter 326 Passenger aircraft, C808 and C909 Chapter 326 Passenger Aircraft, C808 and C909 Its not really an interest. Chang Haonan shook his head slightly. The Paris Air Show is, after all, the largest aviation show in the world today. I just want to track the trends in our country and see if there is any place where I need to provide technical support within my capabilities. There is no way, he can''t just jump into the trap and say, "I predict that General Master Dong will face a disease in three years'' time, and I''m currently trying to think of ways to help him avoid the disaster." ??Now we are almost entering the 21st century, and the craze for researching special abilities has long passed. Saying such words may only be regarded as amusement or curse. So in the end we can only give an answer with full compatibility. Fortunately, Huai Guomo just asked casually and didn''t pay much attention to this matter. ?Although the purpose of his visit this time is also related to the Paris Air Show, the focus is still on the large aircraft project that the entire Science and Technology Commission is paying close attention to. Although the merger between Boeing and McDonnell Douglas has not yet been settled, Europe and China also know that it is impossible to finally stop this kind of thing. It would be of no benefit to everyone to really break up with the Americans, so they have begun to consider their own conditions put forward. The long-pending merger has caused far more damage to McDonnell Douglas than to Boeing. The MD90 project of Hufei has basically stalled, and many engineers sent by the United States have been recalled to work in the country or even dismissed. ?After investigation, the working group sent by the Science and Technology Commission concluded that the resources currently received were not enough to manufacture a complete passenger aircraft, so the entire Shanghai Aircraft Company once again fell into a situation of halting work and waiting for materials. It''s just that this time, anyone with a discerning eye can see it. I''m afraid I can''t wait. Huai Guomo slowly took out one piece of information from the file bag in front of him and placed it on the table: This morning, news came back from Paris. After the air show closed last night, people from the Tupolev and MiG families took the initiative to contact us. ?Chang Haonan perked up and picked up the information closest to him from the table. is a summary of the meeting. ?Similar to all negotiations, the first contact is just to test each other''s requirements, so there are no clear conditions involved. But judging from the fact that almost a quarter of the questions asked by Russian personnel, especially Tupolevs team leader, were about the agreement between China and Europe, it is obvious that they are greedy for the huge power hidden behind it. market. "Director Huai, I understand Tupolev, but MiG..." Chang Haonan flipped through the twenty-odd pages in his hand to the end, but he didnt find that the entire project had anything to do with MiG Company. ? He ??did know that the other party had several passenger aircraft projects in the late 1990s, but they were basically in the drawing-out stage. The only MiG-110 that had been launched also coincided with the positioning of its own MA60. "Oh, because in the future Tupolev''s commercial aircraft will be produced at MiG''s Nizhny Novgorod factory, so if we really reach an introduction agreement like Project 11 with the other party, then MiG people will also participate. Huai Guomo, who had just returned from an inspection trip to Russia, naturally knew the most about some details. Is there such a thing? I dont remember that they have a manufacturing plant in Kazan... In the original timeline, the MiG company, which failed to find a stable market for the improved MiG-29, eventually declined completely, while Tupolev relied on dozens of orders for the Tu-204 in Russia and the support for the MiG-29 at the turn of the century. Da Mao managed to survive on the dozens of Tu-160s he got back from Er Mao for repairs, and managed to survive until the new Tu-160M2 order was placed. As for what happens next, Chang Haonan doesnt know. "Because of our previous contact with Ilyushin, the two factories in Kazan and Ulyanovsk have begun to move frequently, preparing to take over the business in Tashkent and switch to the production of the new model IL-76MF, Tupolev hand There are no orders here, so we have no choice but to make preparations. MiG is also in trouble. " Huai Guomo suddenly laughed when he said this: "About this, Xiao Chang, you were right before. You can count everything one by one." "I" Chang Haonan was a little confused by the sudden compliment. He didn''t even know about these things before, and he really couldn''t see anything... Fortunately, Huai Guomo continued: "Comrade Yang Shuyu from the Navy has already told us that Tupolev relaxed his tone to us and said that Tu-22M3 bombers could be exported. This matter was very controversial at the time, and representatives of the Navy and Air Force were immediately He couldnt make up his mind, but in the end you helped him determine his objections. In hindsight, this should be a move for Tuju to save itself. With the order, it can seize at least one factory to maintain production capacity and wait for changes. "As a result, Tupolev did not expect that we, who had some interest in Tu-22M3 in previous years, did not respond at all this time, catching them off guard. No, the attitude towards passenger aircraft has softened. " Chang Haonan suddenly realized. ?Tupolevs current situation is actually similar to that of Hufei, both of which are facing the situation of being forced to suspend production due to lack of orders. And because they do not have their own production capacity, once production ceases, the supporting factories are likely to find another way to make a living. The aviation manufacturing industry, once it stops for a few years, is not that easy to recover. ?Furthermore, customers who were originally willing will definitely be affected after discovering that you have lost your production capacity. So from a purely logical point of view, it was indeed Chang Haonan''s original words that led to Tupolev''s current crisis, which in turn prompted them to actively extend an olive branch in the field of passenger aircraft. Of course, the details in between are all imagined by Huai Guomo. In fact, Chang Haonan simply felt that without significant improvement in range and bomb load, a simple supersonic bomber would not significantly improve the combat effectiveness of our army. Thats all. But no matter how you say it, the result is always good, and it does make sense. So he accepted it logically: "There is no way, our financial resources are limited now, so we can only choose the most important models first. Judging from the current situation, we must obtain the production capacity of a medium-sized passenger aircraft to help Shanghai Airline maintain its business The production line, workers and team are the top priority. ?Since the leadership of the civil aviation industry was also taken over by the Commission of Science, Technology and Industry for National Defense in the second half of last year, Hufei, which is responsible for the production of large aircraft, has naturally been fully integrated into the system management of the Commission. ??People have already accepted the letter of nomination, so naturally they need to be given some sweeteners. You can''t just enter the military industry system and you can''t even get orders. It will be ugly to say it out. Of course, having said that, at this time in the last life, Hufei was still wavering between two completely dead-end directions: continuing to develop the MD90 and turning its head to produce the AE100. Now it is much stronger. Yes, but in addition to the Tu-204 that we are focusing on, Tupolev has also proposed another model, which is a regional aircraft with about 100 seats, the Tu-334. Huai Guomo said and pushed another piece of information in front of Chang Haonan. "When I went to inspect, I saw this model there. It''s not very big, and its take-off weight is a little smaller than our Y-8. It''s over 40 tons, which can basically suppress the upper limit of the mutual recognition agreement we reached with Europe. , the other party probably also wants to use us to obtain the airworthiness of European models, so that even if they cannot be sold to the EU, they will be easier to export to third world countries. " What we are considering is, is it possible for us to build a 40-ton regional airliner all by ourselves? Obviously, after experiencing various surprises in the past year, the Science and Technology Committees ideas have become wild. After all, the 60-ton Y8 has been built, and the 40-ton regional airliner seems to be able to handle it. Chang Haonan was a little embarrassed when he heard this idea. ?Although he has been cheated, it is not the kind of violent cheat that turns directly into a violent cheat. The Basic Law still needs to be abided by. ?The design principles of passenger aircraft and military aircraft are completely different. Since comfort and economy issues must be taken into consideration, the difficulty is actually much greater than that of military aircraft of the same level. Apart from anything else, the ARJ21-700, which was basically the same level as the Tu-334 in its previous life, received a lot of foreign technical support. It was designed starting in 2002, and it was not until 2006 that the construction of the first prototype began, and it was delivered for operation in 2015. . Even if Chang Haonan focuses his subsequent work on passenger aircraft, based on China''s current overall technological level, this process will take at least three or four years. I''m afraid Hufei won''t be able to wait until that time. ?So he thought about his words and replied: If you spend a few years designing, its not necessarily impossible "But based on the current situation of Hufei, the top priority is to put a model into production as soon as possible to re-establish the confidence of employees, especially front-line workers. This year is catching up with the wave of layoffs from state-owned enterprises. If the factory falls into a long-term shutdown, I am afraid it will Peoples minds change. "Um" ?The angle mentioned by Chang Haonan made Huai Guomo fall into a brief thought: Also, there is one more thing. He continued to increase his bets, "Similar to the situation with the AL31F engine on Project 11, because the PS90 engine used in Figure 204 has a wide range of installation targets, the Perm Engine Factory may not be willing to transfer power system-related technology to us, but the D436T1 engine on Figure 334 You can definitely fight for it and get it together with the plane." "The reason is easy to explain. In order to comply with the requirements of the Mutual Recognition Agreement on Airworthiness between China and Europe, the localization rate of the aircraft must be maintained above a certain level. For the Tu334 model, Tupolev is definitely better than us. Dont worry, and the Ivchenko-Progressive Design Bureau is only breathing its last breath, so the resistance should not be great. D436T1 is a 7.5-ton high-bypass turbofan engine of the same level as the CF34-10A. The most valuable thing is that it is almost the only model that has an advantage in fuel consumption compared to its American counterparts. Moreover, it is difficult for Ermao to obstruct the technology transfer of D436 like the D18 or D36 engines, because the intellectual property rights of this engine are a mess. The Ufa Engine Industrial Complex and Salyut Aircraft Engine Company also control about half of the production capacity. and property rights. ?????????????????????????????????????????????????????????????????????????????????????????????????????????????????? This is something Soros will soon experience. In short, if this operation is successful, it will save Chang Haonan at least two to three years of effort. Such a bargaining chip obviously easily persuaded Huai Guomo: This is indeed a big problem, I will report your opinions to it... "By the way, if the contract is generally signed according to these conditions, then the future Tu-334 and Tu-204 will become highly customized, and our country can obtain full intellectual property rights models, just like the J-11, we should also have our own Do you have any ideas about the name? Is this... ?Chang Haonan couldn''t help but smile. The naming method of Huaxia''s large aircraft in the previous life is actually good and can be directly copied: Airbus planes start with A, and Boeing planes start with B, so well use C, which happens to be the first letter of China. We in China value nine, so the first mainline passenger aircraft produced by the Shanghai Aircraft Factory can be called C909, just like Boeing, followed by 919, 929..." As for the branch line, the grade is still a little lower after all. You can settle for the second best and use 8. The first one is called C808, which is also an auspicious number..." While the two were chatting and laughing, the naming method of Huaxia C-series passenger aircraft was decided. (End of this chapter) Chapter 329 Nominated by the person in charge of a state-owned enterprise, a 3 million project (4K) Chapter 329: Nomination of the person in charge of state-owned enterprises, three million project (4K) "By the way, teacher, Dean Tang, I came to you this time mainly for another matter..." After receiving the letters sent to the college by the three ministries and commissions, Chang Haonan finally found the opportunity to explain the purpose of today''s visit to Du Yishan and Tang Lintian: I received another letter yesterday from the Committee of Science and Technology, inviting me to serve as a member of the expert advisory group in important scientific frontier areas of the 973 Program. While speaking, he unfolded the letter he had taken out as soon as he entered the door and handed it to Du Yishan in front of him. I would like to ask your opinions on this matter. ?Du Yishan took it in his hand, lowered his head and browsed it from beginning to end, and then motioned to Tang Lintian, who was sitting on the sofa not far away, to take a look. The latter just glanced at it quickly and returned it to Chang Haonan. He knew that he couldn''t get involved in such matters. Chang Haonan came to ask because people respected him as the dean, but when Du Yishan was also present, there was no need to make any statement. Besides, there is no way to refuse this kind of thing. ??What worries Tang Lintian the most now is that as Chang Haonan''s title continues to lengthen, he becomes more and more concerned about gains and losses. ??If such a talented future Ph.D. doesnt want to stay after graduation, then the school will basically be unable to provide any corresponding bargaining chips... Du Yishan, who was behind the desk, picked up the teacup. He didn''t answer until Tang Lintian had finished reading: "You can make your own decision on this matter. As long as you have spare energy, I still recommend that you proceed. I judge that the 973 Project will be the highlight of the country''s scientific research for at least the next ten years. If you can be in it Taking on a position, even if it''s not a management position, can be beneficial to both you and the school." Also, although the 973 plan is a project hosted by the Science and Technology Committee, you can rest assured that Ding Gaoheng is not that narrow-minded. Besides, the relationship between the two departments is already relatively close, so there will be no problems with the Science and Technology Committee. A few months ago, Chang Haonan guessed from the exchanges between directors Ding Gaoheng and Song Jian that the two parties had a close relationship. This time it was completely confirmed. In fact, this invitation letter was not sent through the school like the solicitation letters from the three ministries and commissions just now, but was sent directly to Chang Haonan himself, which can already explain a lot of problems. ??This time I came to Du Yishan specifically, on the one hand to get reassurance, and on the other hand to respect the instructor''s right to know. You cant let the other party find out through an internal announcement that one of your students has become a consultant for the 973 project. ?Then Du Yishan must be considered a joke in the education circle... In this case, I will go back and write a reply to the Science and Technology Committee first. After getting the answer he wanted and receiving an unexpected gift package, Chang Haonan stood up and said goodbye to Du Yishan and Tang Lintian. Well, remember to think about those three things seriously when you go back. ?Du Yishan put back the lid of the cup in his hand, his expression showing uncontrollable joy ? Judging from the current trend, Chang Haonan is no longer just able to inherit his mantle. At the same time, the State Economic and Trade Commission. Ding Gaoheng, dressed in casual clothes, is sitting in the office of Wang Yuzhong, director of the Economic and Trade Commission. At hand is a half-open briefcase, the contents of which have obviously been taken out. There are three documents on the latter''s desk. From the National Science and Technology Commission, the Commission of Science, Technology and Industry for National Defense and the Chinese Academy of Sciences respectively. Old Ding, its very difficult for me to make such a request now... ?Wang Yuzhong put out the cigarette that was almost burning his fingers in the half-full ashtray, raised his head and replied with a distressed look on his face. I wont come to you personally for things that are not difficult to handle. Ding Gaoheng seemed to have anticipated the other party''s reaction and replied calmly, "The proposal submitted by the Academy of Sciences has made it very clear that the software industry is one of the weakest technical fields in our country. It is also listed as a key development direction in both the 863 Plan and the 973 Plan, and the software industry and The traditional industry, even the computer hardware industry, is different. It needs to continuously iterate, fix and upgrade versions and content, otherwise it will become obsolete very quickly. So if you want to continue operating and compete with similar foreign products, you still need a company. Considering the overall situation of national modernization, it is best for such a company to be established as a wholly state-owned company and then delegated to a reliable company. Comrade is responsible for operation and management. ?Seeing Ding Gaoheng continue to insist, Wang Yuzhong lit another cigarette, took a deep puff, and then continued to answer: "Old Ding, I understand all the things you said, but the current state-owned enterprises are in charge of three heads. I cannot have the final say alone. Moreover, this year and the next two years are the most critical and chaotic stages of the transformation of state-owned enterprises. At present, The principle is that we wont build new buildings if we can, and wait until this round of clearing out and restructuring is over. This is not just for you. Even if it is as large as a telecommunications company, it wants to spin off the mobile communications business and establish two new companies. It was pushed to 1998 because of this matter. Furthermore The latter hesitated for a moment, turned the top document to the last page, then turned it around, facing Ding Gaoheng with the printed side: The person in charge of the company recommended by the Academy of Sciences was born in 1976 and is still under 23 years old. Although our countrys laws do not clearly stipulate the age of company managers, is this age a bit too exaggerated? ??The personal information printed on it is naturally that of Chang Haonan. ??If we trace the origin of this matter, we have to go back to the previous days. After the ground start-up experiment of the J-10 successfully passed the relevant acceptance by the General Armament Department and the Commission of Science, Technology and Industry for National Defense, due to some twists and turns during the start-up process, and many quality problems were discovered during the re-inspection of prototype No. 1001, Chief Engineer Xue Chishou and Rongfei General Manager Yang Baoshu wrote a report specifically to the Science and Technology Commission and the General Equipment Department. In fact, the core meaning of this report is to summarize experiences and lessons, and to request disciplinary action. It is a standard operating procedure after a major accident hazard occurs. On the one hand, problems and setbacks encountered in scientific research work are objectively unavoidable. In addition, the two people''s proactive attitudes did not cause any irreparable losses. On the other hand, during the acceptance process, Chang Haonan and Lin Hui, who were not members of the 611 Institute and the 132 Factory, and participated in the entire fault detection and troubleshooting process, both made it clear that they believed that this could not be regarded as a liability accident, but only due to the level and experience of China''s aviation manufacturing. Technical problems caused by deficiencies. Hence, in the end, no organizational treatment was carried out for Xue and Yang. However, in the reporting materials and acceptance materials, it was mentioned that Chang Haonan has recently made some research results in the field of numerical solutions to strongly nonlinear partial differential equations, and based on this, he developed a new generation of fly-by-wire flight control system. Surge prediction and active stability control systems for aircraft. Whether it was a reciprocation from Chengdu or a factual report, in the summary document afterwards, they directly stated that it was precisely because of the system developed by Chang Haonan that problems were discovered in advance and dealt with promptly during the trial run of the prototype. Only then did prototype No. 1001 be saved, and it can be said that the entire Project No. 10 was saved. In short, the calculation method developed by Chang Haonan is directly improved. This contribution is huge. At almost the same time, Du Yishan did not go through Beijing Hang University, but through the Academy of Sciences, and jointly submitted a proposal with several other senior academicians to establish a company with complete state-owned assets specifically responsible for the development and maintenance of software in professional fields. And Chang Haonan serves as the general manager, or the person in charge in other names. The company''s first product after its establishment will be a set of multi-physics comprehensive simulation modeling software also developed under the leadership of Chang Haonan. This type of software has repeatedly proven its effectiveness in almost all scientific research fields in the past year. of great value. ??That is, the document that is currently in Wang Yuzhong''s hand, making him look confused. Since the Economic and Trade Commission is not directly responsible for scientific and technological research, and most of the information about Chang Haonan is kept confidential, at least it will not be publicly publicized. Therefore, Wang Yuzhong, the director of the Economic and Trade Commission, has no impression of this name. He just won the first Chinese Youth May Fourth Medal. ?However, since Ding Gaoheng is here, he naturally cannot give up easily: "So our Science and Technology Commission and the Science and Technology Commission have also issued documents proving that although Comrade Chang Haonan is young, he has made significant contributions to national scientific research in multiple projects and is fully capable and qualified to serve as a small and medium-sized state-owned enterprise. The person in charge of the business. He pointed to the other two documents placed on the other partys desk: The Science and Technology Committee has hired Comrade Chang Haonan as a member of the expert advisory group in important scientific frontier fields of the 973 Project. Our Science and Technology Committee will soon hire him as the general consultant of the Seiko Project. Isnt this not qualified? Having said this, Wang Yuzhong also understood that there was no way he could completely reject it today. Leave aside the influence of the two ministries and commissions, even Ding Gaoheng himself still has some face. Whats more, there is also the recommendation letter from the Academy of Sciences. ?Although there are only a few names signed at the end, they can make the whole of China tremble when they are read. Forget about Du Yishan, Song Jian, Wang Xuan, and Lu Yongxiang. How did you invite Mr. Qian out? There are a total of 35 academicians of the Academy of Sciences and Academy of Engineering, and you directly selected 5 of them. Is this a reasonable stance? What does it mean to use force to oppress others? In short, I cant afford to offend him. But then again, how difficult is it to establish a new state-owned enterprise under the current situation of multi-party management... ??Wang Yuzhong, who was caught in the middle, felt like his head was getting big. Old Ding, dont continue to make things difficult for me. I think its better to do this. After lowering his head and thinking for a long time, he finally came up with a plan that had the best of both worlds. "A newly established state-owned enterprise is indeed not operable at the moment. The enterprise working committee that currently manages the organization and cadre team of state-owned enterprises is a new organization that has just been established for more than a month. All energy is basically focused on the reform of the aviation industry. Even if I do this for you, it will probably take a year and a half to two years to complete the entire process. This is still the most optimistic situation. If there are some secret obstructions or unexpected situations in the middle, it won''t count. Hearing this, Ding Gaoheng obviously wanted to say something more, but Wang Yuzhong raised his hand to stop him. The latter paused for a moment and continued: "So my idea is to find a local state-owned enterprise that is currently preparing for restructuring with a similar business scope. After the liquidation is completely completed, the Academy of Sciences will take over and operate it as a collectively owned enterprise for a period of time. If it really has a huge impact on the national economy, After the state-owned assets management model is straightened out, it will not be too late to upgrade it to a directly managed central enterprise. Moreover, in this way, the appointment of your 23-year-old person in charge does not need to be approved by the enterprise working committee, and only needs to be reported. " If this model is used, the new enterprise will be completely finalized by the end of this year or early next year at the latest. As for the period in between..." ?Wang Yuzhong hesitated for a moment. "Our Economic and Trade Committee has a Technology Progress and Equipment Department, which is responsible for guiding and promoting the construction of technological innovation mechanisms and the cooperation of industry, academia and research. Although because of the existence of your Science and Technology Committee and their Science and Technology Committee, this department had almost no actual business in the past, but its authority There are still some. In the name of joint development of industry, academia and research, we can allocate 200...er, 3 million yuan to you for the early development of software. " "I read what the Academy of Sciences report means. The company was established mainly to deal with subsequent product maintenance and upgrades. That means that the development work should be carried out in the form of a research group or a project team. When the development is completed, the company over there should also It has been transferred to the Academy of Sciences, so it can be seamlessly connected, how about it? ?Seeing that the other party proposed such a plan, Ding Gaoheng knew that it was almost the limit. Negotiation is nothing more than the art of compromise. Now that someone has taken a big step back, he cannot give in even an inch. As for the allocation that Director Wang mentioned, I dont know when Ding Gaoheng stood up with his briefcase and prepared to leave, then turned back and asked. At this time, Wang Yuzhong also realized that he had let go a little too fast just now, and he could actually pull back and forth a few more times. ??But what he said out loud was just water thrown away, and he still had to face it, so he had no choice but to bite the bullet and give a guarantee: I will expedite the approval process for you, and the first payment will be received within a month! Ding Gaoheng, who won a three-million-dollar project, finally put a smile on his face: Then its a deal! One word is settled ?Wang Yuzhong showed a smile that looked like he was crying and watched the other party leave. Then he breathed a long sigh of relief and fell down on the back of the seat: This director is too **** hard to be... Note: There are a total of 34 academicians of the Chinese Academy of Sciences and Chinese Academy of Sciences in Three Dimensions, but in order to avoid harmony, the important role Du Yishan can only use original characters, and he was also included, so there are 35. (End of this chapter) Chapter 332 Save China’s machinery manufacturing industry Chapter 332 Saving Chinas Machinery Manufacturing Industry ?Chang Haonan hesitated for a moment. Actually, he really didnt dare to guarantee it. ?After all, this thing requires a lot of investment, and the largest domestic production before was 30,000 tons. Now it has more than doubled, which is not in line with the spirit of gradual progress and small steps. ?However, considering the current support for the aviation industry from above, we are still 80-90% sure. Among other things, with this thing, many parts of Airbus and Boeing aircraft, such as landing gear and fuselage bulkheads, can be produced domestically. After hearing this answer, Shen Hong''s spirit even recovered a little instantly. ?However, Chang Haonan and Yan Yongnian both know that as an old man, Mr. Shen''s energy is limited after all, and it is not a good thing for him to continue to exert himself like this. ?So he changed the topic specially, and after chatting about something light, he left the other party to rest alone, got up and left the room. Mr. Shens energy is limited and he is very old, so I still need to add a lot of things in between. After closing the door, Yan Yongnian whispered to Chang Haonan. Compared to Shen Hong, who held an important position in the First Machinery Department, Yan Yongnian, who directly presided over the design of the die forging press at that time, obviously knew more about some details. ??And now that he is less than 60 years old, he has more energy to explain these things to Chang Haonan. Professor Yan, please tell me. Chang Haonan originally did not expect the 90-year-old Shen Laozhen to work hard with him throughout the whole process. Being able to contact Yan Yongnian through the latter was already the main purpose of the trip. Actually, only part of the information about this die forging press is in our Qinghua University. ??As a result, Yan Yongnians first words made Chang Haonan unable to stand still: Part of it? He originally thought that the other party wanted to add some technical issues to him. Under normal circumstances, the drawings involved in the same project will definitely be stored centrally, so it is normal for all of them to be in Qinghua and all of them not to be in Qinghua. There is usually a story behind this kind of separate storage. ?At this time, Shen Yiqing brought over two cups of tea, led the two of them to the sofa, and then turned back and entered another room. Compared to going outside to pave the road, Mr. Shen''s living room is more suitable for the two of them to communicate. "right." Speaking of this matter, Yan Yongnian nodded helplessly and continued, Originally, because the completion level of the entire project was already very high, all relevant materials were stored in the original Archives of the First Machinery Department. "After Mr. Shen retired from the leadership position, he rarely asked about the affairs of the department. Those of us who were in charge of the project also went our separate ways to do other things, so for many years, no one stopped. Pay attention to these things. ??His words were very tactful, but Chang Haonan could still understand the implication. The actual meaning was that Shen Hong''s group had lost power that year and it was difficult to control the situation in the ministry. So part of... is missing? ?The other party shook his head: Its not lost. It was probably between 1991 and 1992. I think it was around the time when Lao Maozi was just disbanded. An American company said it wanted to buy a complete set of original materials related to our project... Well, its a familiar plot again. Similar routines were almost always unfavorable when facing the immature Eastern camp. You dont even need to use any off-board moves. As long as you pay a very low deposit and liquidated damages, you can take away the key content of your information. ? Many times, even a few percent of the data is missing, which can have a devastating impact on project progress. Of course, the "cooperation" of some internal personnel is indispensable, otherwise it will be difficult for the other party to determine which parts of the vast amount of information are the most important in a short period of time. ??While Yan Yongnian was picking up the cup and drinking water, Chang Haonan guessed: I guess they paid a deposit and only took part of the information before choosing to breach the contract? ?Although it is used in a question, the tone is almost determined. Yan Yongnian next to him stared at him for a long time before sighing with emotion: Sigh... If only they could have such a long-term perspective like you..." Although he did not answer directly, he basically accepted this statement. "When Mr. Shen told me about your situation before, I thought that although you have many titles, you are still too young and would have difficulty taking on this responsibility. Now it seems that I made a mistake..." Chang Haonan waved his hand indifferently: Although Im quite capable, I really dont have a long-term perspective on this matter, because the data on Yun 10 back then also lost key parts, so I have experience He specially added an accent to the word "lost". In fact, until the first decade of the 21st century, it was widely circulated that when McDonnell Douglas signed the MD82 final assembly project with Hufei, it required Hufei to completely transform the Y-10 production line and destroy all relevant data. Actually, even if you think about it, its impossible. It is true that the production line was dismantled and completely renovated, but McDonnell Douglas never mentioned transporting 10 data in the contract. They all gradually drifted out in the following years. ??Of course the claimed reason must be that it was lost due to poor storage. Due to the extremely frequent organizational adjustments and changes in the past decade from the late 1980s to the beginning of the 21st century, it is difficult to even hold accountable the loss of some data. Yan Yongnian glanced at Chang Haonan with the eyes of a brother in distress: "In short, after that time, in the name of scientific research, I transferred all the transferable parts to Qinghua University for storage. If necessary, I can lead the research team to join this project, even if it is a hand-in-hand OK." "The heavy-duty die forging press is something that Mr. Shen and Cao Chunxiao and we have always been unable to let go of. Now that Mr. Shen is older and Mr. Cao is in Hongdu, I am the only one who can help them realize this idea. Think about it..." Of course, the latter could not give up such an important new force, and he was not from the Ministry of Machinery Industry, so he did not need to worry too much about forming cliques, so he answered directly: Dont worry, as long as this die forging press project can be restarted, you and your research team will definitely play an important role in it. The big projects that Chang Haonan will be deeply involved in later include the No. 10 Project, the Turbofan 10 engine and the heavy-duty die forging press. Whether it is from the perspective of cultivating technical strength or from the perspective of his own lack of skills, it is impossible. Completely shoulder to shoulder. We still need to establish the project first Yan Yongnian put down the cup in his hand as he spoke, obviously still having trouble letting go of the past. Many times, internal resistance is greater than the technical difficulties we face... Fortunately, the situation in your Science and Technology Commission should be much better. As a member of the Science and Technology Commission system, Chang Haonan naturally could not respond directly to such comments, so he could only reply noncommittally: "In the future, there will be more and more projects involving large-scale equipment, and it is impossible to remain under the Science and Technology Commission system. If we don''t occupy some positions, others will. We still have to face the problems we have to face. So taking this opportunity, I considered incorporating some power from the Ministry of Machinery Industry into the project. ??Everyone Chang Haonan has come into contact with so far has relatively high confidence in the Science and Technology Commission. Mainly because the predecessor of the Commission of Science, Technology and Industry for National Defense was led by veteran comrades Zhou Gong, Nie Shuai and He Shuai. It is truly upright and trustworthy. ??But no matter what, the Science, Technology and Industry Committee has the prefix "military" after all. Especially after the military is not allowed to do business, it is inconvenient to directly come forward on many matters, and there is no way to cover everything. Still needs a local institution. However, in the original timeline, influenced by the "sunset theory of traditional industries" and the "sunset theory of traditional industries" and the "retreat of the state and the advancement of the people" ideas that became increasingly popular in the late 1990s, next year, that is, in 1998, the Ministry of Machinery Industry and the Ministry of Metallurgical Industry will They were directly abolished and eventually evolved into the Machinery Industry Federation and the Iron and Steel Industry Association respectively. Dont underestimate the changes in the last few words. The latter two are just private guild organizations without any administrative capabilities. The loss of assets caused by this process is second. The bigger trouble is that the mechanical industry R&D system and industrial intelligence system that have been operating for many years have collapsed. The entire physical manufacturing industry has lost the ability to coordinate a game of chess and can only enter a passive state of fighting independently. ? It was not until 2008 that China, which suddenly woke up from the financial crisis, established the Ministry of Industry and Information Technology again. Although the name contains "industry", since the machinery and metallurgical related departments have disappeared for 10 years, the Ministry of Industry and Information Technology can only be established under the Ministry of Information Industry. For a long time, there has not been enough coordination of the development of the manufacturing industry. ability. It can be said that this strategic misjudgment is the most severe blow to the development of China''s manufacturing industry. ?Of course, China is not the only one who has taken this detour. ?Most developed countries in the world have left, and they have gone more thoroughly than China. But no matter what, its better not to take this detour. Therefore, Chang Haonan has another thing that he has never stated clearly but wants to accomplish Save the Ministry of Machinery Industry and the Ministry of Metallurgical Industry, which are about to be disbanded. Brothers, when you participate in the wool harvesting event, remember to bring pictures... dont just write a sentence (End of this chapter) Chapter 333 Peoples Navy, move forward Chapter 333 Peoples Navy, moving forward ?Of course, Chang Haonan did not disclose this kind of ambition to anyone, including Du Yishan. It was actually a hasty decision to disband the Mechanical and Metallurgical Department. In 1997, he had not even written a word about it, so he certainly could not say it directly. Secondly, Chang Haonans own influence is still mainly within the Science and Technology Commission, and now he talks about how he wants to treat other departments at the same level, which always feels like meddling in other peoples housework. ?Even though he actually wanted to intervene It is a pity that the two ministries and commissions were directly disbanded, but the original situation is indeed no longer in line with the requirements of the times. ?So the best way is to build the Ministry of Industry and Information Technology in advance and integrate the functions of the Ministry of Machinery Industry, the Ministry of Metallurgical Industry, the Ministry of Electronics Industry, the Ministry of Posts and Telecommunications, and even the Commission of Science, Technology and Industry for National Defense. It cannot be done overnight, so do it gradually. ??But this cannot be said in advance, otherwise it will inevitably be seen as an attempt to manipulate the Science and Technology Commission to annex brother units and become a dominant company. The impact is too bad. It is more efficient to do it quietly by yourself. Yan Yongnian next to him naturally didn''t know Chang Haonan''s true inner thoughts, but this project was originally intended to focus on the latter. Others were willing to bring the power of the Ministry of Machinery Industry to play with him. He had no objection at all, but just reminded some of the things. Obstruction and sabotage from within. Lets take advantage of it, and times are different after all, so there is no need to be so pessimistic. Chang Haonan replied with a normal expression, Anyway, its a pleasure to work with you, Professor Yan. The two shook hands and exchanged contact information, and then prepared to say goodbye to Shen Yiqing. Before leaving, the latter brought them some bacon dried at home as a return gift for their arrival. While waiting for the other party to take action, Chang Haonan noticed a piece of news in the newspaper ? A British fleet transited the Suez Canal on a planned visit to a series of South and Southeast Asian countries. He took another look at the date of the newspaper. More than half a month ago. Today is June 20th. This reminded Chang Haonan of the origin of this British fleet. Wave 97 task force. Also exists in the original timeline. Chang Haonan could not remember exactly which ships were in it, but he still remembered that this should be the largest single fleet assembled by the Royal Navy after World War II. Even larger than the one sent out to the Falklands in 1982. In the original timeline, the Chinese Navy really had no ability to intervene with the main part of the fleet that was more than a thousand kilometers away. It only sent a frigate to prevent two of the ships from trying to rush into the waters near HK on the evening of June 30. plot. Its a tie. Both parties felt that it would be disrespectful to talk about this matter, so they chose to keep a low profile for a long time. ?However, although the content written in this newspaper does not directly criticize the British for provoking, people who are knowledgeable can still see some clues from it. In short, there are thorns in the cotton. After returning home, Chang Haonan specially dug out the newspapers he had saved in recent days. Sure enough, I found the follow-up from the day before yesterday. This fleet has passed through the Strait of Malacca and entered the waters near Annan. And there will also be a joint exercise with the Annan Navy. Compared to the wording on the newspaper used to wrap the bacon, it was already much harsher. In fact, Chang Haonan estimates that if it were a different country, a different time, and a different format, this matter would probably be handled in a low-key manner. But the British drove nearly 40 ships to the surrounding waters to cause trouble in June. Basically, this is all the key points to hit China. Because the war of 1840 was fought in the same way. Thanks to Chang Haonan''s efforts, the equipment level of the Chinese army has improved to a certain extent compared to this time in the previous life. However, judging from the map, the exercise area chosen by the opponent is not close to the mainland of China. A rough measurement is about 1,500 kilometers. . For the Chinese army in this era, it is indeed a bit beyond their reach. After all, the combat radius of the aircraft is not just cut in half. If the necessary consumption during the mission is included and some margin is left, it can be one-third to one-fourth. As for the surface ship force... It can only be said that the influence brought by Chang Haonan has not radiated to them yet. So based on the situation in the previous life, Im afraid its not optimistic. ?He suddenly became curious, what will happen in the next 10 days? It can only be said that although Chang Haonan has a high level of security in the military industry system, he is not a soldier after all, and it is impossible for him to understand many internal situations in the army in real time. ?For example, the Air Force has expedited the introduction of two Il-78 tanker aircraft and conducted joint training with relevant naval aviation units in Qingtang Province for more than a month. ??In the next few days, this mixed aviation unit temporarily formed for this purpose secretly transferred in batches from the northwest Gobi to Lingshui Airport in Qiong Province, the southernmost part of the motherland. Together with the naval surface ship forces who also participated in the embankment operation, they will teach the self-righteous British an unforgettable lesson. June 23rd at 7 a.m. The two warships set sail in the light morning fog, blowing their horns, and left Zhanjiang Port with the assistance of barges. They are the Type 051D destroyer Jingjiang and the Type 053H frigate Rongzhou. 899196604091904/10013529/b3ae9bd921af79aaab590001816c7851rnS7sObp809d9B1.jpg"> From the perspective of combat effectiveness alone, this one-wheel drive aircraft carrier is naturally inferior to an aircraft carrier plus two-wheel drive aircraft and three **** aircraft in the Hailang 97 fleet. In fact, the combined displacement of the two ships is just over 5,000 tons, not much larger than a Type 22 frigate. But at this critical moment, no matter how great the disadvantage is, there is absolutely no reason to retreat. What''s more, before setting off, they had received clear information that this mission would be covered by their own aviation units. This is unprecedented in history. In the past, it was basically impossible for the shore-based aviation force to bring any effective support. It could only fly around once and then return. But this time, the superiors specially arranged for all the commanders and fighters participating in the mission to visit the Lingshui Airport in Qiong Province. ????Although the people in the surface ship force don''t know much about aircraft, they can still tell the size. ?A dozen fighter jets and fighter-bombers, at a glance, are much larger than the J-7 or Q-5 that were common in past exercises. According to the comrades accompanying the tour, these aircraft can also be refueled during flight, so they can fly to the scheduled mission sea area 1,500 kilometers away and stay there for about half an hour. Half an hour, although it doesnt sound like a long time, is enough to do a lot of things. ?Especially for some veteran commanders and combatants, in some maritime conflicts they have participated in, the really intense part from beginning to end usually lasts about this time. Finally, we dont have to worry about those Annan Su-22s anymore This is the first thought of many people. At the end of the tour, two large tankers that were almost five stories high were completely beyond the imagination of many people. Although the People''s Navy has always faced a situation of weak enemies and strong enemies since its establishment, it has nothing to fear now. But it is better after all to build up all-round confidence before setting off. (End of this chapter) Chapter 334 Eagle over the South China Sea Chapter 334 Eagle over the South China Sea June 30, 14:30. Lingshui Airport, Qiong Province. In the afternoon light, six tactical aircraft were parked on the tarmac next to the runway, lined up. Ground crews around are skillfully connecting cables and compressed air pipes to the aircraft from the power supply truck and air supply truck parked nearby, preparing to complete the preparations before takeoff. A little further away, four J-8D fighter jets belonging to the Air Force were undergoing a similar process in the hangar. Since the Air Force model aircraft did not specifically consider the use in a salt spray environment in the painting and surface treatment of some parts, they would appear more vulnerable at such a seaside airport, so they squeezed the host''s four J-8Cs. Temporary parking area. The two large Il-78 tankers, which also belong to the Air Force, really do not have the facilities to match their size, so they had to be wrapped in raincoats and parked outside. According to the plan, in order to avoid coordination problems caused by cross-service command, these air force aircraft will not directly participate in the combat plan, but will go to a location about 650 kilometers south of Qiongdao to establish a refueling area to meet the naval aviation forces who are insufficient in fuel during the return journey. formation. ?At the same time, the flight briefing room is located under the tower at the end of the runway. Nearly 40 crew members involved in this embankment building operation had just finished lunch and began preparations for the flight. The relevant mission details are already familiar to everyone through countless trainings and simulations. Compared with the earliest plan, the biggest change is that in the past month or so, Factory 172 and Electronics 14 have shown amazing efficiency in delivering the second JH-7 that has been modified and tested to the troops ahead of schedule. It gives the attack formation more flexible operating space. Hence, a total of 6 aircraft will be split into two parts when approaching the opponent''s Wave 97 fleet. Division commander Tang Yiping will fly No. 10 aircraft and lead another No. 11 aircraft and the newly delivered electronic warfare aircraft with tactical number 21 to maintain the original flight altitude to attract the attention of the enemy fleet. The other two J-8Cs, plus the first J-Handian-7 with tactical number 22, will descend to ultra-low altitude at a distance of 50-60 kilometers from the target. This is the most important and risky mission in this mission. MissionFly over the opposing fleet and photograph the British reaction. ?Captain Wang Weis No. 12 aircraft will carry a photo reconnaissance pod in the belly to record the entire process. An hour later, at 3:30 in the afternoon, the pilots who had finally determined their respective missions completed their changes and boarded their own planes. As a suspect, a transport 8J first started its engine and taxied to the runway. According to the operational concept, it has no self-defense capability and will not fly directly into the mission airspace. Instead, it will hover at the edge of the combat radius of the Sea Harrier aircraft, attracting the attention of enemy carrier aviation, and if necessary, use that aircraft. The SouShui 2000MS radar imported from the UK indicates targets for friendly forces. Although the 164 Jingjiang ship and the 552 Rongzhou ship that left port five days ago have already approached the mission sea area, they will complete the search and tracking of the enemy fleet, and may not necessarily need an aircraft with an already tight range to find needles in the haystack, but this 8J transport actually It also shoulders the task of conducting a tactical training exercise at a higher level. That is to simulate an early warning aircraft and command 6 other naval aviation aircraft that are directly involved in combat. ?Of course, the command is also simulated, and the real orders will always be issued by the tower at Lingshui Airport. But for the Chinese Air Force, which was exposed to air command posts for the first time, this was also a huge leap. To this end, Kang Shijun, deputy chief of staff of the Naval Aviation Department, who had just recovered from serious injuries and returned to the team, specially boarded the plane to take charge. Set the call channel to 55.7 MHz. The sound of instructions from the tower came from the headphones. "receive." Wang Wei in the cockpit of Unit 12 spoke calmly and at the same time adjusted the radio frequency to the location required by the tower. This is a band commonly used for ionospheric scatter communications. It is impossible for the Chinese Navy to deploy a data link system within a month, so direct communication between the **** fleet and the aviation force is still not possible. However, thanks to a communication relay airship placed at high altitude in the name of "meteorological research", The tower can act as a communication medium between the two. After finishing what he was doing, he raised his head again and watched the transport 8J leave the runway and disappear into the distant horizon. That is exactly the direction due east. Wang Wei knew that just 700 kilometers away, preparations for a ceremony that all Chinese people had been waiting for for nearly a century were being intensively prepared, and all their efforts in the previous month and in the next few hours had the ultimate goal. It is to protect this. At any cost. "Yuejiang, received news from the fleet ahead. They came into contact with an RN warship at 908'' north latitude and 11212'' east longitude. It was determined to be a Type 22 frigate, and the radar captured 4 fixed-wing aircraft taking off. Post-climb target signal. Received from Yuejiang. ??Tang Yiping''s voice could no longer remain calm. Although the opponent''s main fleet was not directly captured, since even the low-altitude search radar on the 051D could see the Sea Harrier that had just taken off, it meant that the aircraft carrier was not far away.????It''s time to take off. The six long-prepared aircraft started their engines almost simultaneously. Subsequently, the pipelines connected to the aircraft body were quickly removed. Yuejiang, please take off. Permission to take off, and I wish you a triumphant return. The 12 engines roared simultaneously and drove onto the taxiway one after another. ?Three planes led by Tang Yiping took off first, and then it was the turn of the other three planes led by Wang Wei. After finally getting into the take-off position, the latter took a deep breath and then put on an oxygen mask. ??Due to his excellent performance during the training in Qingtang Province, he was finally selected to carry out the photo-taking mission with a reconnaissance pod. This is what Wang Wei has dreamed of since he joined the embankment construction task force. As a pilot, his cultural level is higher than that of the soldiers on warships or tanks, so he knows that the Chinese Navy and the Royal Navy are closely related. Although it is not a good cause. Not just the one in 1840. ?Also in 1953, the newly born People''s Navy used a gunboat converted from a transport ship to drive away an RN ship trying to stir up trouble outside the mouth of the Guangdong River. That was the navys first foreign war after its establishment. Now, more than 40 years later, he is more than willing to teach the short-memory British a lesson once again. ?Wang Wei slowly pushed the throttle all the way with his left hand, and then released the brake. As the body of the aircraft shook slightly, the fighter jet began to accelerate rapidly. ?Just a few hundred meters later, he felt the plane''s strong tendency to raise its head, so he pulled the plane up. ??The captain looked back and made sure that his wingman Zhao Yi had also taken off with him. Only the No. 22 JH-7 was still taxiing on the runway. ?But this was originally part of their training results. Three aircraft of two types share the same runway. ?Although it has been about 4 months since he installed this new aircraft, Wang Wei still feels an unreal feeling every time he takes off. The performance improvement is too obvious. ?In previous confrontation training, when faced with the combination of the Blue Armys J-7E and J-8D, they were able to compete one-on-one. Although the appearance is not much different from the J-8B he drove in the past, as a pilot, he can feel that these are two completely different models on the inside. The new J-8C does not have the clumsiness that an interceptor should show at low altitudes and during takeoff and landing. Even though it now carries two auxiliary fuel tanks, a photo reconnaissance pod and two of nearly four air-to-air missiles, it can still take off with only a short runway. ?Engines with more thrust certainly play a role. But it is said that most of this is due to the slit on the leading edge of the wing. If this is indeed the case, then the designer is really a genius, using such a simple method to solve the most troublesome problem on the old model. ?Wang Wei returned his attention to the front, thinking this while retracting the landing gear. Deputy Chief of Staff Kang Shijun encountered an accident during a flight training in August 1996 and was injured while parachuting. This name may not be familiar to book friends, but you must have heard of a young pilot student named Dai Mingmeng in the back seat of the J-6 he was driving. (End of this chapter) Chapter 335 Sea Harrier takes off Chapter 335 Sea Harrier Takes Off ? Later in the day, about 50 nautical miles northeast of Nanci Island. ??A huge fleet consisting of more than thirty ships is slowly sailing due north. On the aircraft carrier Excellence in the center of the fleet, fleet commander Rear Admiral Alan West is sitting in the Combat Information Center (CIC), his eyes fixed on the circular radar screen in front of him. Since about 20 hours ago, two old Chinese warships have loomed near the fleet. But this is not a point of particular concern to the Major General. An inconspicuous signal is displayed at the edge of the screen. It looks like a slow passenger plane or transport aircraft, but from the zigzag route it flies, it is not difficult to judge that it is conducting a sea search. Task. The Invincible-class aircraft carrier referred to the experience of the Soviet Union when preparing its budget, and deceived the parliamentarians in the name of an "all-deck command cruiser." This decision resulted in the ship paying the price of reduced combat effectiveness in many aspects, but At least it brought a CIC that far exceeded the tonnage standard of this ship. ?After the data link system was upgraded in the early 1990s, the commander sitting here can see the targets searched by other ships in the entire fleet. This is particularly important for the Royal Navy, which experienced heavy losses in 1982. ?? Also upgraded after 1982 was the radar equipment of the Type 42 destroyer. ?But even so, West is still a little worried. After all, as the captain of the sunk frigate Enthusiasm, he had a close brush with death. And now the major general in a high position already knows that the Type 42, or the entire Royal Navy fleet''s air defense problem, actually only retains dedicated long-range warning radar and fire control radar, but it was later proved that such a configuration saves money. place, but it is difficult to connect during combat. ??A common situation is that the long-range warning radar has clearly seen the target, but the fire control radar cannot accurately lock it and can only watch. This is not a problem that can be solved simply by upgrading equipment. ?But there is good news. The newly added Type 23 frigate HMS Somerset can make up for this problem to a certain extent. During several small-scale maneuvers along the way, Alan had to admit that he had some past prejudices against this new model and its captain, Dorsem Slater, the son of the current First Sea Lord. The Su-22 of the Annan Air Force simulated the low-altitude penetration strategy of the Super Etendard many times in an attempt to break through the air defense network, but was successfully intercepted every time, including several simulated anti-ship missile targets. This made the major general feel somewhat relieved. What made him even more troubled was that many people in the country regarded this operation as a royal parade like a century ago, without any sense of the seriousness of a military mission. So this fleet, which was quite professional and capable when setting sail, was required to include various unnecessary non-combat ships along the way. Originally, according to the Rear Admiral''s plan, one Fort Victoria and one Fort Rosalie logistics supply ship were enough to sustain the operation. After all, there would be more than a dozen ports to stop along the way, and most of the supplies could be on shore. conduct. ?However, now, the fleet has expanded to nearly 40 ships, more than half of which are unplanned transport ships and oil tankers. Most of them do not even have the ability to resupply during travel and can only rely on helicopters to lift and transfer supplies. Reasons include, but are not limited to, some trust relationships to fill ships in which descendants of the family hold positions, hoping to add to their resumes, and some companies register their almost abandoned small cargo ships as oil carriers to join the fleet to obtain Special royal subsidies for participating in the royal parade. Yes, from the very beginning, the Conservative cabinet followed the standards and caliber of the Royal Parade in its propaganda. ?This operation allowed them to quickly boost their already precarious support rate and delay the suspense over the distribution of parliamentary seats that should have been settled in early May for two months. As a professional naval commander, West naturally refused to do this at first, but many companies have high-level and even royal connections behind them, which is not something he can manage as a mere major general. The situation reached its peak five days ago when a Royal Cruise Ship packed with tourists joined the group. The entire fleet is now more like a tourist group. Alan, this target is nearly 300 kilometers away from us, and you have been staring at it for almost 10 minutes. A man of similar age came up from behind West, patted him on the shoulder and said. The former showed a slight expression of disgust on his face, but it was only fleeting. Vice Admiral Michael Boise, who is rumored to be the next First Sea Lord to succeed Jock Slater. ?This kind of rumor is actually a leak before the appointment, and it is often extremely accurate, so West is not willing to offend such a popular person. Sir, before the Zealot and Sheffield were sunk, the fleet was monitored by a P2 patrol aircraft wandering around the edge of the defense zone for such a long time. ?Every detail about Falklands will echo in West''s mind in this life. ?This answer made Boise frown. ?In the process of appointing the new Sea Lord, the biggest obstacle he encountered was that some people pointed out that he had no experience in commanding or even participating in any major maritime missions. ?His forced intervention in the middle this time was to silence this critical voice. And now someone is mentioning this matter in person, which will undoubtedly make the Lieutenant General feel unhappy. So he simply replied: If you are really afraid of this target, you might as well take off a formation to verify it. We cant analyze anything even if we just watch here. ? West turned his head slightly and glanced at Boise behind him with his peripheral vision, but did not give any direct response. The latter joined the fleet with the royal cruise ship. In fact, Michael Boise is closer to a political officer than a naval admiral. ?The most unbearable thing for West is that the lieutenant general himself has no such consciousness. Since joining the fleet, the latter has taken a helicopter to the aircraft carrier Excellence to stay for a few hours almost every day. Theoretically, as the fleet commander, West should have the highest command authority. But when a person with a higher military rank, a knighthood, and a high probability of becoming the next Sea Lord stands in the CIC, it is difficult for him not to be disturbed. And other people in CIC are even more like this. ?For example, sitting opposite the Rear Admiral, Colonel Lejar Dennis, the captain of the aircraft carrier Excellence, who had been silent just now, suddenly said: General West, before setting sail, I specifically read the detailed information on the Chinese navy and air force provided by the intelligence department. "The Su-27 aircraft with the longest range of the Chinese military currently has a very low readiness rate and can only be stationed at an inland airport. The remaining aircraft do not pose any threat to us in terms of range or performance, so they can only dispatch one aircraft at most. Its just a patrol aircraft with no attack capabilities, so even if a group of Sea Harriers are sent out, it shouldnt matter. Even if we send them out, whats the use? ?? West shook his head, "The target position is almost at the edge of the Sea Harrier''s combat radius. Even if we take off, the aircraft only needs to retreat slightly to avoid direct contact with our aircraft." Such an argument is naturally untenable. The purpose of the eviction mission is to drive away the opponent''s aircraft. As long as the target retreats, the goal is achieved. Actually, this is just a temporary rhetoric used by West to deceive Boise. The real reason is that there were originally 14 Sea Harrier FA.2 fighter jets on board the Excellence, but 4 aircraft are currently undergoing maintenance due to recent continuous exercises, and the other two have just taken off and are planning to conduct a sea battle with the Su-22 of the Annan Air Force. During the attack drill, there were only 8 usable aircraft in hand. Considering that the two Sea Harriers carrying out sea attack missions would soon return, West was unwilling to send out additional aircraft at this time. Since there is no angled deck, the Sea Harrier can only take off vertically when an aircraft is preparing on the deck. ?That blank time is almost negligible. Another coincidence when HMS Enthusiasm and HMS Sheffield were sunk was that a group of Sea Harriers on a bombing mission just happened to return from their missions, resulting in the fleet being unable to obtain effective cover for a long period of time. The incoming aircraft were actually detected by radar in the final stage, but except for the rifles in the hands of the sailors, the entire fleet could not find any weapons capable of performing air defense tasks. ?However, West''s excuse was able to deceive Boise, but he could not convince Dennis next to him. ??The latter hesitated, but finally decided to support Boise, who had a higher military rank. ?And the reason West just gave is indeed comparable to lying to a fool. "We don''t need direct contact. According to the situation sheet, the only one in China that can perform this kind of mission is a patrol aircraft improved on the basis of the An-12, and the radar it uses is exported by our country. In fact, Its the same model used by our ships early warning helicopter. Is there such a thing? ?? Boise was immediately attracted by the news. "so what?" So the Sea Harrier can carry an interference pod. Although it is an old model that was put into service many years ago, it can only inject interference to the front in a fixed way, but at least it is very effective for our own radar. ? West realized it might be hard to say no anymore. ?However, he still made a last-ditch effort: Perhaps you are right, Colonel, but after all, that is what you saw before we set sail. It may be different now, and the efficiency of our intelligence department is also..." ?However, this time he was interrupted directly by Boise: Major General, although you have sailed around half of the region, it has only been five months. Do you think the situation in China will change drastically in such a short period of time? "this" ??West could not answer. Because according to common sense, 5 months is really not enough time. As for the efficiency of our countrys intelligence services Lieutenant General quickly stepped forward and sat opposite West in a very oppressive posture: They are not the Soviet Union. ?At this point, West really has nothing more to say. Because to say the least, they are not in a state of war, and they have not entered any country''s territorial waters yet. Although everyone knows that this is a provocation, it does not violate any international conventions. Even the major general himself cannot imagine what other response China can do other than sending warships to follow around. In fact, those two old ships had no deterrent effect on the fleet at all. Many people on the cruise ship even used them as backgrounds to take photos. The nuclear submarine that had been hiding under the sea also simulated many torpedo attacks. ?If he continues to insist on his own opinion, he will only look like a persecution delusional person. Okay, let the two Sea Harriers go over to take a look at the situation and try to force the target away. ??West sighed and decided to compromise. ?However, after thinking about it for a while, he added another sentence: Take off another Sea King MK2 early warning helicopter, just in case. 899196604091904/10013742/e3b088289014daf15d7e370b6f8a62e6a1r1r8j9Jbwz04u.jpg"> (End of this chapter) Chapter 336 Electromagnetic interference, nightmare repeats itself Chapter 336: Electromagnetic interference, nightmare repeats itself ?At almost the same time, two three-aircraft formations of the Chinese Naval Aviation Force had arrived about 400 kilometers away from the mission sea area. Yuejiang, we have just received news that the Jingjiangs radar has discovered that the enemy has taken off two planes heading towards the 45th direction. They should have been attracted by the North Star. ?The radio station came with a tower commanders announcement that I hadnt heard for a long time. Polaris is the code name of the Y-8J. ??The ionospheric scattering communication that was relayed once through the stratospheric airship did not disappoint them. Although there was some distortion, the conversation could still be heard clearly. In fact, this conversation at a distance of about 1,100 kilometers should have broken the distance record for VHF communications conducted by the Chinese Aviation Force. Its just that no one cares about such minutiae now. What they will do next is something that will be recorded in the history of the navy and even the entire people''s army. The North Star side should be able to handle it, right? Zhao Yi, who was following the team at the end, was obviously a little worried about the athletes who were alone and had no ability to defend themselves. Although there is unlikely to be any direct conflict between the two sides, a flexible tactical aircraft actually has many ways to interfere with the movement of large aircraft, and the Sea Harrier just meets this requirement, and the flight stability of the 8-level plane is not very good. platform. Yuejiang 13, dont be distracted. ?Wang Wei quickly reminded on the radio. ?However, he added later: Polaris will not be in direct contact with the opponents aircraft, so there is no problem. For these aircraft that perform overflight missions, the fewer aircraft remaining on the Excellence, the more conducive to completing the mission. At present, it can be confirmed that the other party has released 6 aircraft. ?But before Wang Wei could get happy, another news came from the tower: The Jingjiang also reported that the radar detected a very low-speed target, which should be a helicopter, hovering over the opponents fleet. Helicopter Tang Yiping, the lead pilot at the front, was thinking about the current situation rapidly. ?Helicopters appear hovering over the fleet. A common situation is anti-submarine warfare or search and rescue of people who have fallen into the water. The latter possibility makes little sense to them, and the Chinese Navy did not send submarines to participate in this mission. Could it be an early warning helicopter? Wang Wei''s voice suddenly sounded from the UHF radio used for short-distance communication. He proposed a new possibility. ?In this year, early warning helicopters are quite unpopular equipment. If Wang Wei hadn''t read the Royal Navy''s war history materials before taking off, even he might not be able to remember them. If this is the case, it is not a big trouble. Although the range of early warning helicopters against air targets is not long, after all, they are not launching anti-ship missiles today, but flying over the opponent''s fleet. ??If you really allow the other party time to react, there may still be complications. Yuejiang 21, Yuejiang 22, you guys exchange covering positions. ?After a few seconds of thinking, Tang Yiping made corresponding adjustments to the deployment. ? ?The latest delivered aircraft No. 21 has a third fixed electronic warfare device above the vertical tail, so that it can interfere with the aircraft above the original blind spot and has a more comprehensive function. The price is that the course stability is slightly weaker than before, so in the initial plan, it was not allowed to follow the low-altitude formation. ?But I cant care about that much now. At 17:10, in the afterglow of the setting sun, the aviation formation entered the search range of the opposing fleet. ?Two electronic warfare aircraft reported almost at the same time that they received an S-band signal from the left front. It should be the long-range warning radar on the British fleet. ?In order to compensate for the far range of the X-band fire control radar and double as a search radar, the Royal Navy''s long-range warning radar chose a relatively high frequency. ?This compromise ultimately proved that the accuracy could not meet the needs of replacing the search radar, and the effective range of the warning radar was affected. And today, it exhibits another flaw. ?As a third-party signal source, this higher-frequency S-band will be more conducive to passive searches by Chinas electronic warfare aircraft. They "borrowed" each other''s radar waves and saw the low-speed signal hovering over the fleet, as well as four targets returning at a speed of 300 knots in a slightly farther distance. It should be the four Sea Harriers that took off before. This is simply an unexpected surprise. Since the two warships were being held at a slightly greater distance and out of visual contact with the opposing fleet, the two JH-7s were even ready to use radar to actively search. But now, this unnecessary step is eliminated. ?The location of the Sea King helicopter must be above the fleet. Tang Yiping quickly calculated the time in his mind, and then issued a new command: Yuejiang 12, you speed up now, its best to pass by while the other party is recovering the aircraft! "receive!" ?Wang Wei, who received the order, understood what the division commander meant in a flash of lightning. ??It is impossible for the Sea Harrier to take off in a short distance while the Excellence is busy recovering four aircraft, and the bomb load and combat radius in the case of vertical takeoff are very limited. So now is basically when the opponent''s entire fleet is at its weakest. ?According to the revised plan, aircraft No. 10, 11 and 22 continued to maintain their original flight status, while Wang Wei led the other three aircraft to lower their altitude to completely avoid the opponent''s warning radar. In the CIC of the Excellent, Major General West looked at the three rapidly approaching target signals on the radar screen, and suddenly had the urge to strangle himself 40 minutes ago and Captain Dennis in front of him. No matter what happened in the past five months, the Chinese must have got a plane that can fly here. ??Long-range warning radar can only see the presence of something, but cannot accurately determine the location of the target. ?Now, the four planes have run out of fuel and are in urgent need of landing, not even leaving enough space for the Sea Harrier on the deck to take off. But no matter what, he had to deal with it. ?? West knew that although it was Boise who interfered with the command, but if something really happened, he, as the fleet commander, would definitely be the one to take the blame. ??He can only be thankful that he was cunning enough to keep a Sea King MK2 in the sky in advance. Notify the aviation department to let the four aircraft on the deck take off vertically, and the early warning helicopter will direct them to the interception target! Major General, our electronic detection equipment did not sense that the other party was using radar, so they should not be able to determine the accurate position of our fleet. The deputy next to him reluctantly found a piece of good news. ?However, before West could breathe a sigh of relief, CIC received another report from the early warning helicopter. Their radar couldn''t see the target! (End of this chapter) Chapter 337 Break through the interception and fly over the aircraft carrier! Chapter 337: Break through the interception and fly over the aircraft carrier! Cant see the target? ?When he heard the news, West''s brain shut down for a moment. The Rear Admirals naval service experience so far can be said to be rich and colorful. ?For example, when the Zeal was sunk fifteen years ago, when he was still a lieutenant colonel, he watched two A4 attack planes fly over, drop bombs, and hit the target. This is not an opportunity that every commander has. But facing the situation in front of him, he still couldn''t make a judgment for a while. ??The warning radar has clearly detected that a flying object is approaching at high speed, but the early warning helicopter, which is supposed to have a better view, reported that it found nothing. Could it be that its not a Chinese plane, but a UFO? At the end of the 1990s, it was the time when UFO fanaticism was at its most intense, and even West, as a naval admiral, was not immune to some influence. Fortunately, the radio operator quickly reported the subsequent situation and did not let the fleet commander continue to think wildly: Sea King reported that they encountered electromagnetic interference, and there were all clutter signals in that direction! ?? West didnt know whether to be happy or worried for a moment. On the one hand, the Chinese are always easier to deal with than the aliens. But on the other hand, this means that the other party has mastered quite powerful electronic jamming capabilities, at least not weaker than the US military in 1991. When both sides clearly have no intention of engaging in conflict, electronic warfare is almost the trump card in the confrontation. ?At the same time, this also means that the Sea Javelin anti-aircraft missiles in the fleet will not be able to lock on the target. ?At this moment, the target distance displayed on the radar screen was close to within 150km. ??The Rear Admiral no longer thinks about where the Chinese came from to assemble an aircraft with such a long range, and where they obtained the electronic warfare technology that can blind their own early warning aircraft. He could only use all the strength at hand to survive this wave first. ??As West''s order was issued, the deck of the aircraft carrier Excellence entered an unprecedented busy state. It should be said that the Royal Navy has demonstrated a training level consistent with that of a veteran maritime overlord. The aviation department quickly coordinated to divide the four aircraft preparing to land into two batches to free up two available take-off and landing points. At the same time, the auxiliary fuel tanks of the other two Sea Harriers on standby were removed so that they could meet the weight requirements for vertical take-off. . ?Just a few minutes later, the two aircraft piloted by Major Ian Watson and Captain Randall Brown completed the take-off procedure, successfully switched to level flight mode, and flew towards the target location. ??The voice of the commander on the early warning helicopter came over the radio: Clover, the other party may have implemented electromagnetic interference. Our X-band radar cannot see the target, but we also did not find the target using radar. You may be able to take advantage of this. In 1983, when Watson was still a rookie, he encountered a radio failure that prevented him from finding the aircraft carrier and landed on a passing cargo ship just as he was running out of fuel. Since then, four-leaf clover has become his call sign. "receive." Watson turned on the radar and tried it, and found that, as the early warning aircraft said, the direction of the target was full of clutter. Although this indicated that there must be something, it prevented them from using the AIM120 air-to-air missile as their trump card. In the vertical takeoff state, his onboard fuel was only enough to fly about 270 kilometers at economical speed, so he didn''t have much time to struggle. In the end, the major decided to follow the advice of the early warning aircraft, turn off the ineffective radar, make a slight circle, and approach the enemy from the side. He knew that the cockpit visibility of most Soviet-made fighter jets was very poor, so it was difficult to detect the presence of targets on the sides, especially on the sides and below, without using radar. If you are lucky enough, you can even cut directly into the opponent''s back hemisphere and gain a huge first-mover advantage. ?As long as it can be delayed for 8-10 minutes, it will be enough to clear the take-off deck and allow other planes behind to take off in the normal way. Major, after engaging the enemy, remember to determine the model of the enemy aircraft. It is best to use a camera gun to leave image data. It may be useful after we return. ??The order this time came directly from West in CIC. The current situation seemed to be back on track. The two Harriers should be enough to entangle each other, so he began to wonder what model the Chinese had sent out, which could fly nearly 1,600 kilometers. Perhaps they are not planning to fly back at all? ? Lieutenant General Boise, who had been a little nervous by the tense atmosphere in the CIC, finally found a chance to speak again. In his opinion, the situation should be under control. But this joke that he thought was funny did not receive any response. Even the captain who was on his side before did not look at him. The three planes changed direction and passed towards our two Sea Harriers. Colonel Dennis looked at the radar interface and said in shock, "But didn''t Clover and the others turn off the radar?" When neither side used radar, they should have kept a blind eye, but the response made by the other side was obviously targeted. Who knows what witchcraft they used... ? West, who was a little exhausted, shook his head. Anyway, at least they didnt continue to rush towards us. The Chinese plane probably doesnt have much fuel left, and it wont last long before it returns. At this point, the major general finally breathed a sigh of relief and leaned his upper body back on the backrest. A few minutes later, Watson, who had just received the warning, had made visual contact with the target at a distance of about 30 kilometers from the fleet. ??However, the three-plane formation of the Chinese Air Force occupied a favorable position with its back to the setting sun, making it difficult for the British pilots to look directly at the target. But despite this, the major still vaguely saw that there was a model with a slender body, which looked very similar to the old acquaintance Su-15 in terms of outline. ?Of course, China does not have such an aircraft, so it should be their own J-8B. After judging the target information, Watson felt a little relieved. Under normal circumstances, the overall flight performance of an interceptor aircraft is the worst at the current flight altitude of about 8,000 meters. If it really falls into a circle, then with the good nose directivity and the high stability performance brought by the high thrust-to-weight ratio, There should be no reason why Sea Harrier should be at a disadvantage. Everything developed as he expected. ?The other three aircraft seemed to have no intention of continuing to fly towards the fleet, but calmly entered into a dogfight with him. Come on, monkeys ??The moment the planes from both sides passed each other, Watson said to himself. However, just as he rolled 90 to prepare for a large-angle instantaneous disk, he suddenly saw three other long tails at a lower altitude than himself, streaking across the sea, heading towards the sea. Extending in the direction of the fleet... No, they dont just have three planes! The major shouted into the radio: Fleet, there are three other planes passing in your direction, be careful to intercept them! On the other side, Rear Admiral West, who suddenly received this report on the aircraft carrier, jumped up from his chair. He grabbed the microphone as quickly as possible and asked the entire fleet to prepare close-defense weapons. Rationally speaking, he believed that the other party would not actually fire on him. But the memory of the past allowed him to complete a series of instructions almost uncontrollably. ?However, it was too late. ?In mid-air, Wang Wei in the cockpit had already seen the mast rising from the sea level in the distance. He knew that was the goal this time. In the mission briefing, there was no further explanation of the "flyby" action. ?Theoretically, the reconnaissance pod he carries can take photos in a 65 range to the side. As long as the image of the target fleet can be recorded in the camera, the mission should be completed. But Wang Wei has some higher requirements for himself. ??He hoped to pass directly above the opponent''s aircraft carrier Excellence and take pictures of the opponent''s flight deck. That must be a very precious image. ?The height of the flight formation dropped to an astonishing 30 meters. Fortunately, the nearby sea was calm and there was no chance of a big wave suddenly hitting them. In order to ensure the imaging effect, the three aircraft reduced their speed at the last moment when approaching the target. ??If you are still flying the old J-8B, it will be difficult for him to maintain level flight at a speed of less than 400km/h. But this magical aircraft actually maintained a speed of about 300km/h at ultra-low altitude and flew stably. ?Wang Wei adjusted the course one last time and pointed the nose of the aircraft towards the aircraft carrier deck in the center of the fleet. He could even see the two Sea Harrier fighter jets on the flight deck preparing to take off, as well as the crew members who were looking up at him in shock or horror. (End of this chapter) Chapter 338 Frightened British people (10,000 per day, please vote for me) Chapter 338 The Frightened British (10,000 per day, please vote for me) ??At the same time that Wang Wei was leading the formation to break through the air defense circle, a high-standard dinner was in progress in the top hall of the Royal Cruise Ship. Since this ship does not belong to the Royal Navy at all, the series of calls on the fleet radio just now did not affect the happy atmosphere here. As for the frequent take-off and landing of fighter planes, this has happened frequently in recent days. Most passengers would gather at the window with interest at first to watch, but they soon lost interest. Although some passengers who are a little knowledgeable or interested in the navy will still pay attention, the high-end banquets and upper-class social circles are obviously more attractive. Journalist Ingrid Seward and her colleague and childhood friend Mark Spencer were sitting in a corner drinking. ??The two of them came to this ship through several connections. They originally wanted to catch a few big shots and dig out some news. As a result, although the big shots found a few, they never found a chance to get close. Looking at the frowning Seward, Spencer picked up the wine glass, touched her gently, and then comforted: Think on the bright side, at least we have the opportunity to personally participate in this voyage. Believe me, even just a few issues of the memoirs will sell the newspaper for a few days after we go back. ?Originally, when this fleet first visited, its influence was not so great. It was only later that as I visited many former Commonwealth countries along the way, I really gained a lot of face, which reminded many British people of the imperial cruise more than 70 years ago. After all, this was the most powerful time in the history of the British Empire. Just like the Chinese people will never forget the Han and Tang Dynasties, every British person also pretends to have an imperial dream. But the female reporter next to her did not become happy because of this: After all the trouble to get on this boat, how can we possibly recoup our money by just selling the newspaper for a few days? ?She said and drank the wine in the glass: Actually, I originally heard that this cruise would involve some people related to the royal family Member of the royal family? ?Spencer''s voice unconsciously lowered a lot. In the past two years, almost all news about the royal family has been highly sensitive: I just heard that there is royal support behind this fleet trip. Because now we need some exciting topics to dilute the scandal of the royal family... At this time, a pair of young men and women in bright clothes came over. The two of them changed to another topic in perfect agreement. Hello, can you take a photo of me and my fiance? Obviously, the other party saw the camera bag next to them. "Can." Seward glanced at Spencer sitting next to him with complicated eyes, and then agreed. Just by the window, with the warship behind as the background. ?The man and woman stood by the floor-to-ceiling windows of the banquet hall. ?Seward adjusted the camera casually, then squatted down and started focusing. In fact, there is no necessary connection between journalists and photography, and interview journalists like her rarely need to press the shutter themselves. The camera is just part of your professional image and just in case. However, the moment she focused the viewfinder on the two people, she discovered that a plane was approaching from the stern of the Excellent in the distance outside the window. Even as a military illiterate, Seward knew after a few days that the Royal Navy''s carrier-based aircraft landed vertically, and there was no such approach procedure. The reporters intuition allowed her to quickly adjust the focus and take a series of photos. ??If someone who didnt know the situation saw this scene, he might think it was a carrier-based aircraft preparing to land. In fact, even Wang Wei himself on board No. 12 had the urge to put down the landing gear and give it a try. ?But in the end, I still maintained my sanity. ?A ski-jump aircraft carrier without an angled deck does not have enough space to complete a go-around.?????Furthermore, it is true that he has never practiced. If something goes wrong, everything up to now will be over. The moment the plane passed over the aircraft carrier, he pressed the photo button of the reconnaissance pod. ?At the same time, I noticed from the corner of my eye that the ground staff next to the Sea Harrier aircraft below subconsciously lowered their heads to dodge. ?This is exactly the deterrent effect brought by the action of "shaving one''s head". This is especially true for the Royal Navy, which once sank several ships with iron bombs dropped by low-altitude attack aircraft. ?Thinking of this, Wang Wei suddenly had a bold idea in the blink of an eye. Before departure, their superiors told them that they could jettison the auxiliary fuel tanks on the aircraft if necessary. The original intention of this sentence is obviously to express when air combat or acceleration is required. But if it is extended, then Wang Wei feels that now can also be regarded as a "necessary time." He turned the weapon selection **** to the outermost position with the words "auxiliary fuel tank". The moment the plane left the bow of the ship, the two auxiliary fuel tanks under the wing of No. 12 fell off like two bombs. The moment they touched the water, they bounced back up and floated several times before finally diving in. nautical miles. At this time, the JH-7 backseat pilot who was flying from the other side of the fleet raised his camera and recorded this rare moment from a third-person perspective. I really want to try what it feels like to land on an aircraft carrier if I have the chance... ??Wang Wei, who completed the flyby mission, turned back and looked at the increasingly smaller aircraft carrier in his field of vision and thought to himself. After all, for any naval aviation pilot, boarding an aircraft carrier is the ultimate dream. ?At almost the same time, in the banquet hall of the Royal Cruise Ship, Seward, who had taken several photos of the plane, was preparing to refocus on a pair of lovers posing in front of the window. But at this time, some knowledgeable people have noticed the anomalies in the distance. Oh God, thats not our plane on the aircraft carrier! An exclamation instantly attracted the attention of the entire banquet hall, and almost all eyes were immediately cast out of the window. ? Its just that in the absence of equipment, most people cant actually tell the aircraft model clearly, let alone the distance of thousands of meters. As if to answer everyone''s confusion, the man had just finished speaking. Before anyone could ask his doubts, another slender fighter jet flew from the outside of the Royal Cruise Ship at a much closer distance at the same exaggerated height. Pass. ?Whether it was intentional or not, the plane even deflected its fuselage slightly to show tourists the two large, two small and four missiles hanging under the wings. Now, people with good dynamic vision can see it. Because there was a pair of five-pointed stars with red ribbons on both sides painted on the underside of the wings of the plane. Even those with little military knowledge can tell that this is definitely not the logo of the Royal Navy or Air Force. "It seems...is the Chinese Air Force?" At the end of the day, there are people who are more knowledgeable. ?But another sharp female voice immediately sounded: Look! That plane dropped two things. Are they bombs?! ??Everyone who was already dumbfounded focused their sights in the distance again, and happened to see the scene of two things "floating" on the sea. ??Haunted screams instantly echoed throughout the banquet hall. ??The orchestral music that had been playing just now came to an abrupt end. ?At this moment, only Seward and Spencer remained calm. They know that their trip is worth it! The 815-pointed star logo with two wings was indeed called the Air Force aircraft emblem when it was named in 1949, but in fact it is used by both Hainan Airlines and Army Airlines, and the name has not been changed... (End of this chapter) Chapter 339 Triumph Chapter 339 Triumph Rear Admiral Alan West, aboard the USS Excellence, left CIC in the last half minute. As the fleet commander, there is nothing he needs to do under the current situation. ??The moment he saw three Chinese fighter jets rushing toward the fleet, the major general''s mind almost went blank. ?What appeared in front of my eyes were the menacing figures of two A4 Skyhawk attack aircraft. ?This made him suddenly have a vision of returning to the frigate Enthusiasm 15 years ago. Whats even more outrageous is that the plane that flew over the aircraft carrier actually dropped two auxiliary fuel tanks into the sea when it left... ?This is basically equivalent to riding on the face and taunting directly. But he had no choice. Everybody is numb. ?After a few breaths, West finally recovered from his sluggishness. Fortunately, compared to the ground staff scattered on the deck, the major general standing motionless outside really has the demeanor of a big boss who remains unchanged despite the collapse of the mountain. ?He just hopes that this matter will not have a big impact on public opinion. Otherwise, if he does not go further in the future, he may not even be able to keep his current position. ?Just as this thought came to his mind, he caught sight of the royal cruise ship about 1 kilometer away from the corner of his eye... ??Although the major general has not been there personally, he knows that there must be many good journalists up there if he thinks about it. He felt he had to do something. After returning to the CIC, West glanced at Colonel Dennis, who was also pale, and Lieutenant General Boise, who didn''t show much, but also lowered his head and remained silent. To be fair, based on the tactical proficiency and technical capabilities displayed by the opponent''s six aircraft, on the premise that they could not fire, even if the two Sea Harriers used for verification and evacuation had not been sent out, nothing would have happened. change. The key to the problem is that one is that we are not mentally prepared for this and underestimate the enemy. The other is that the aircraft carrier is at its weakest moment when the four returning carrier-based aircraft are landing. Thinking of this, the major general couldn''t help but feel a little sad. ?The other party did not use radar during the whole process, and by great coincidence, they caught the critical moment when our own fleet was recovering the aircraft and the deck was in the most chaos. It can only be said that even God is not on the side of the Royal Navy this time. ?However, this does not stop him from planning to use some spring and autumn techniques in the report to shift part of the responsibility, preferably the main responsibility, to Boise. As for what offended the future First Sea Lord It''s so funny that I don''t have time to think about the future, let alone the fact that I may not be able to handle it right now. ?After such an incident, whether Boise can still be the First Sea Lord is a question. If you offend, you will be offended. The key to the problem now is that he needs to win the support of another key figure, Captain Dennis. ?Furthermore, try your best to save some face of the Royal Navy. ? ? After calming down a little, West took over the command of CIC again. ??Although his heartbeat and blood pressure are now racing, he must appear calm and indifferent. Let each ship in the fleet report on the air defense situation just now. ??In this kind of confrontation, where there is no misfire, there is actually no predetermined outcome. The main thing is to fight in the end to see who can''t hold back. Because if the attacker really insists on flying over your fleet, they will be able to rush in after all. Its just that if you are under the lock of anti-aircraft fire throughout the whole process, doing this is completely self-defeating. So the first thing the Major General thought of was to see if any ship in the fleet had completed the lock before the opponent broke through. ??As long as the radar information map of the locked state is released, the other party will be embarrassed. However, there was still confusion over fleet radio. ?Most of the young commanders of the destroyers and frigates had not experienced the 1982 war, and many were panicked when faced with such a scene. ??And the sea javelin on the Type 42 destroyer is unable to respond to such a close target. After a few seconds, the major general finally received the first decent answer. From the captain of the Somerset, Dortham Slater. He said that the 910 guidance radar equipped with the Seawolf air defense missile was never able to lock the target. It barely completed tracking until the opponent was almost close to visual distance. However, due to the obstruction of other ships and the influence of sea clutter and electromagnetic interference, the signal was very weak. Unstable and will unlatch after a few seconds. ?So he switched to the manually controlled TV channel at the last moment. Although it was too late to complete the optical tracking, he was able to capture the opponent''s back in the aiming frame as he left gracefully. The captains of several other ships did not even have time to make such a response, and almost watched the scene where their own aircraft carrier was almost ejected. ??West let out a long sigh and sat down on the chair a little slumped. When you are tired, destroy it. Fifteen years have passed, and the situation of the Royal Navy seems to be no different from what it was then... ? ? Capturing the opponent''s back, let alone not being able to lock it at all, even if it is locked, it can only be regarded as "post-action air defense" at best - Others'' attack has been completed, and our side will suffer a loss of blood no matter what. Notify Captain Slater and ask him to save the relevant video and image data. In any case, something is better than nothing. In the Royal Cruise Ship on the other side, the commotion caused by the two "bombs" just now continued. After all, the plane that flew past the window just now showed them the weapons it carried. In fact, the current J-8C does not have sea attack capabilities. Only two J-Handian-7s in the entire fleet symbolically carry one YJ-81 anti-ship missile each. Its just that most people cant tell the difference between drop tanks, bombs, air-to-air missiles and anti-ship missiles. Especially after someone shouted that there was a bomb. ??At this time, there were no mobile phones that could take photos and videos anytime and anywhere, and the cameras in the hands of Seward and Spencer did not have video functions, but they still had a tacit understanding of recording the scene with photos and tape recorders respectively. Some people panicked, some hid under the table with their heads in their hands, and some even rushed out to prepare to lower the lifeboat... The various aspects of all living beings are undoubtedly revealed. Seward even had a press release in mind. It wasnt until about a minute later that a more knowledgeable passenger squeezed onto the stage in the center of the banquet hall and loudly told everyone through a microphone that they were probably just two auxiliary fuel tanks and not bombs, and the farce finally ended. ?The men and women at the scene tidied up their suits or dresses again, and returned to the banquet with unsettled moods. It seemed that nothing had happened, only the fragments of wine glasses and dinner plates that had not been cleared away by the waiter on the floor told of the chaos just now... At 17:48 on June 30, 1997, under the eyes of most of the passengers on the Royal Cruise Ship and the fleet commander Rear Admiral Alan West, a fighter jet with the August 1 red five-star painted on the vertical tail and the tactical number 81192 The 8C fighter jet passed by the Royal Navy R06 Excellence aircraft carrier in an almost passing manner. In the cockpit of Unit 12, Wang Wei naturally didnt know that his act of dropping two auxiliary fuel tanks almost triggered the other fleet commanders PTSD. It just feels very refreshing and transparent. Since he arrived at the training base in Qingtang Province more than a month ago and heard that the British were going to send a fleet to provoke at this time, he has been thinking about what he should do to vent his anger. Now its finally done. ?Wang Wei took a look at his fuel gauge. Due to a more fuel-consuming ultra-low-altitude flight, the remaining fuel was already a little tight. Therefore, after leaving the range of the opponent''s fleet, he quickly led the fleet back to the normal cruising altitude. Yuejiang 10, how is the situation over there? ?After calming down his excitement slightly, Wang Wei was able to spare his energy to pay attention to the division commander who had attracted the attention of the opponent''s carrier-based aircraft. Yuejiang 12, everything is going well for us. We have been dealing with the two Sea Harriers for a while. They didnt lose anything. They must have run out of fuel just now and escaped from the battlefield. ??The voice on the other end of the radio was slightly breathy, and it was obvious that it was not that calm. ??And flying with heavy g-load is indeed a burden for a pilot of Tang Yiping''s age. ?However, in any case, this embankment-building operation achieved near-perfect success at both the sea and air levels. Okay, the mission is over, regroup and prepare to return! (End of this chapter) Chapter 340 Western journalists who run fast Chapter 340 The fast-running Western reporter An hour later, the six aircraft participating in the operation finally entered the refueling area set up by the Air Force in advance. ?Under the guidance of the operator, the pilot soon saw the IL-78 tanker ahead with its red and green navigation lights flashing. Aerial refueling at night is definitely like dancing blindfolded on the tip of a knife. If the docking fails, the refueling drogue may even be torn off. ?This thing itself is not bad, but the fuel warning lights of several aircraft have been on for a while. If they can''t refuel, they will definitely not be able to fly back to the Lingshui base. Fortunately, everything was safe. All successfully connected. ??The UPAZ-1 refueling pod equipped on the IL-78 began delivering fuel to the six aircraft at a rate of approximately 1,600 liters per minute. ?Wang Weis heart, which had been hanging just now, was finally relieved. Since the belly auxiliary fuel tank was replaced with a photo reconnaissance pod, its fuel capacity was the least optimistic among the entire mission formation. It could only last for about 10 minutes at most before it began to receive fuel. Its finally continued now. Yuejiang 12, I just happened to take a photo of you throwing the auxiliary fuel tank into the middle of the opponents fleet. Ill give you a souvenir after you get back. ??The voice of the pilot in the back seat of No. 21 came over the radio. That is, the JH-7 that followed him and flew over the opponent''s fleet. This was not part of the initial mission plan, but the two pilots of aircraft No. 21 used to be the main force of the East China Sea Fleet aviation force. They often had various "friendly exchanges" with the Air Self-Defense Force and discovered each other during the mission. I often let the F4EJ backseat pilot, who was doing nothing most of the time, take photos with a camera to collect evidence, so I built one for myself. ??The only fly in the ointment is that this camera, which is mainly used to take pictures of the Self-Defense Forces, is actually from Olympus. Thank you, its very memorable. Yuejiang 12, you threw two auxiliary fuel tanks at their fleet? Tang Yiping, who had been listening on the radio channel but never spoke, suddenly asked. Ah...yes, Commander. ?Wang Wei gave an explanation that he had already thought of: I carried one less auxiliary fuel tank than you guys, so in order to reduce fuel consumption on the return trip, I threw away the two empty auxiliary fuel tanks, which can reduce resistance. ??It is naturally impossible to deceive Tang Yiping with such nonsense. Even if it is really necessary to dump the auxiliary fuel tank due to insufficient fuel, doing so at ultra-low altitude will only increase the risk. But he decided not to expose this little trick. China''s aviation unit has been held back for too long with no results. Originally, it would have been fine if it had always been in this state, but at the beginning of this year, the Air Force suddenly started a big operation in Kashmir. As one of the few people who know the inside story, it is understandable that the young guys in the Naval Aviation Corps are itchy. It was just an auxiliary fuel tank, and it was not like two bombs were actually dropped. ??With such a shameful thing, the Royal Navy''s first thought is definitely to cover the lid and make peace with it. There is absolutely no reason to make a big deal about it. ?Of course not in China either. The current overall trend in relations between China and Europe, including the United Kingdom, is to warm up. This kind of thing may be a big deal for the military, but at a higher level it is just a minor episode. ?Although he felt it was a pity, Tang Yiping felt that it was a lot more balanced when he thought that Deputy Commander Zheng, who shot down the MiG-25, was not publicly publicized. ?After the aerial refueling was completed, everyone returned to normal level flight. The next 40 minutes of the return journey seemed extremely dull compared to this exciting night, so much so that it was a bit boring. ??However, for Seward and Spencer on the Royal Cruise Ship, the real excitement has just begun. After experiencing such an incident, although the dinner party on the top floor was still going on, most people no longer had the excitement they had before. The two reporters who were already sure that they had got the explosive information had long forgotten about the big shots on the ship. After filling their stomachs with a few bites of food, they returned to their suite as quickly as possible. After the frightening 30 seconds just ended, the entire fleet fell into a headless state for nearly an hour. Until recently, the huge fleet began to gradually turn around and sail south. The USS Excellence aircraft carrier recovered four Sea Harrier fighter jets from two directions, but did not take off new aircraft to pursue the Chinese aircraft that had left Technically speaking, this is simply because the Sea Harrier, which can only fly at a maximum of about 900km/h when loaded with bombs, is simply impossible to catch up with the opponent''s six supersonic aircraft in retreat. There is no need to make useless efforts. But from a journalistic perspective, this kind of thing can be interpreted in ten thousand ways. As for which one to adopt, it depends on the judgment of the media... What did you just take pictures of? ?In the living room of the suite, Spencer asked excitedly as he took out the laptop he brought on board and turned it on. At the beginning, it was a plane approaching an aircraft carrier. What happened behind it? It was so chaotic. I wasnt really sure. I was taking pictures based on instinct. Seward next to him said as he took out a roughly square memory card from his camera. But well find out soon. ?Then he gently slapped Spencers extended hand away: Ill do it myself, youre too messy, and youll be in trouble if it breaks. This is SanDisks new card. I spent 1,600 pounds to buy it, and the editor-in-chief actually said that they can only reimburse me half of the cost at most This CF card with a capacity of up to 16MB was absolutely astonishing in 1997. Although it could only hold about 30 photos of average resolution together with the body storage, it was not suitable for most paper media. It''s enough for use. Look, this is the first plane. He almost wiped the deck and flew over the Excellence..." This is the one closer to us in the back. I even captured the missiles under its wings. Oh my god..." ?Siward''s voice trembled slightly. ? ? Coming from a writing business, she is actually not very good at taking pictures, but today, somehow, this camera seems to be like a divine help. More than half of the 30 photos are of great news value. You even clearly captured the aircrafts emblem and serial number. I think the editor-in-chief must like this photo very much. Spencer also praised next to him, "The one nearby is 81193... I think I should probably find an expert to explain the meaning of this group of numbers after I go back." No, we cant wait until we go back. Seward shook his head and said this was too slow: We will get the first draft out tonight and send it back to China via satellite network, so that the editor-in-chief can finalize the main tone of the report The Guardian, where the two work, is not a neutral media, so many reports must make choices. "etc" Spencer next to him said suddenly, and at the same time he reached out and took Seward''s hand that controlled the mouse, pulled the photo back to the front, and then zoomed in: The screen shows the Chinese plane just flying over the aircraft carrier. Look, this man standing next to the fence on the Excellent... "this" ??The resolution of digital cameras in this era did not yet support this level of magnification. The two could only guess from the other''s uniform that this might be the fleet commander, Rear Admiral Alan West. Inna, do you think he was calm or panicked at that time? ?Spencer, who retracted his hand, asked in a half-joking tone. Seward looked back at him: Wellit depends on whether Major General West supports the Conservative Party or the Labor Party (End of this chapter) Chapter 341 July 1st Chapter 341 July 1st On the other side, Lingshui Airport in Qiong Province is 1,600 kilometers away. The 12 aircraft involved in the operation landed smoothly on the runway one after another. What greeted them was naturally a celebration ceremony that had been prepared long ago. However, because it was at night, the scale was not large. They only had a few bouquets of flowers and some ribbons and other decorations. ??There were also reporters from the People''s Liberation Army Newspaper who came specially from the capital to take photos of the members of the task force. The background is naturally those fighter planes that have just returned to the tarmac. Compared with the previous overseas operations, although this time there is a high probability that it will not be made public and high-profile, at least there is no need to hide it even within the military system. Praise must be reported when it is time to report it, and relevant publicity materials must also be prepared. ?Ground staff also surrounded us immediately. Other aircraft are not in a hurry, but the camera pod hanging on Wang Wei''s No. 12 aircraft must be taken down immediately. The film bin inside is the most important result of this mission and needs to be handed over to the General Staff Intelligence Bureau as soon as possible. It was only when they were able to relax completely that everyone suddenly remembered that there was an unsung hero who was not directly involved in the entire operation but was equally important. The aircraft is shipped 8J. ??In addition to attracting firepower and searching for targets in case of need, it should also conduct simulated command of the mission formation. Although in order to avoid causing interference to other pilots, the commanders in the Y8J will not enter the radio channel, which is basically equivalent to just playing a single-player game. But even so, for the Chinese army, air command is a brand new stand-alone game that has never been played before. You still need to pay attention to it. ?Especially after such a mission that was extremely close to actual combat, everyone had an intuitive understanding of the role of air command. ?The two JH-7s actually took on the command role during the embankment building operation. In addition to their traditional electronic jamming, they also used radar signals to trace the target''s exact location when surface ships were unable to maintain contact with the enemy''s main fleet, and used the passive radar detection function to sense two approaching aircraft in advance. The intercepted Sea Harrier thus commanded the formation to respond promptly. Even without a data link, just relying on a backseat weapons controller for voice command has already played such a great role. ??What does the full version of the early warning system look like? By the way, how is the situation over there at Polaris? ??Tang Yiping, who had already packed his equipment, found his chief of staff from the crowd after the celebration ceremony. After hearing this question, the other party was stunned: I dont know yet, but when Deputy Chief of Staff Kang came back, he said that he would conduct a unified mission summary tomorrow morning, so we should know by then. At this point, he paused again, and after making sure there was no one around him, he continued in a low voice: But after Polaris landed just now, I saw that the faces of the crew members seemed not to be very good. It may be that they encountered some special circumstances. Is there such a thing? Tang Yiping glanced at the "Big Nose" patrol plane parked opposite from a distance. ?Due to range and mission setting issues, this aircraft returned a few hours earlier than their other 12 aircraft, so it had completed post-flight preparations and was covered with the iconic camouflage tarpaulin. "Um." The division chief of staff nodded: But ignore them for now. This mission must be a complete success. The celebration drinks for you have been arranged. We will go directly there later. The political commissar has specially arranged a TV at the scene. You must watch it when the time comes! As he spoke, he patted Tang Yiping heavily on the shoulder: We have successfully completed the **** work. Although we cannot arrive at the scene, we still have to witness such a big event with our own eyes! This celebration banquet was only arranged within the division, so it was not a grand occasion. ??The highest-level leaders present were the political commissar of the division commander of the 9th HNA Division, and Deputy Chief of Staff Kang Shijun of the Naval Aviation Department. ?But precisely because of this, the atmosphere at the scene was harmonious and natural. As the person who performed the key flyby mission, Wang Wei naturally became the focus of attention at the scene. Of course, it is impossible for a pilot on a combat readiness training mission to drink alcohol, but one round of beer after another made him feel a little full soon. Fortunately, everyone was quite measured and quickly ended the drinking party. Brother Wang, I promise to take your photo. ??The weapons control officer from the East China Sea Fleet Aviation Force handed Wang Wei the photos that had been developed in a hurry after landing. Even specially enlarged it. Many comrades who had not been given the opportunity to participate in the operation immediately gathered around. Since the banquet has been going on, they have only heard some fragmented descriptions, and it is not clear what exactly happened this evening. ? In the photo above, it is the scene where Wang Weis No. 12 aircraft just flew over the USS Excellence aircraft carrier and dropped the two auxiliary fuel tanks under the wings. Naturally, this attracted a burst of cheers and jeers from the crowd. If the two auxiliary fuel tanks were replaced with bombs, this aircraft carrier could be sunk ?Of course it is impossible to say this kind of thing publicly outside, but when everyone is one of our own people, there is no restriction. The J-8s auxiliary fuel tank is 760 liters. Even if it is converted into two 500kg bombs, a light aircraft carrier may not be able to carry it..." ?Wang Wei quickly waved his hand: If its time to take action, its definitely not possible to fly over the opponents head and bomb like this. This time its just a gesture, a gesture I remember that in 1982, several British warships were sunk by iron bombs bombed from the air. Brother Wang, this time, I am afraid it will give some people nightmares. ??The weapons control officer in charge of taking photos also seized the opportunity and joked. ??Everyone in the joy did not notice that Tang Yiping also poked his head in from the outside and saw this photo. This photo can be developed again, enlarged, and hung in the Teachers Hall of Honor The division commander''s voice caused the others to fall into silence for a moment, but they soon realized that the other party did not mean to criticize them. Besides, when you look at Xiao Wangs flying altitude, it looks like hes landing on an aircraft carrier. ??The division chief of staff who was following Tang Yiping also pointed at the photo and said. Chief of Staff, dont tell me, I really had the idea of ??putting down the landing gear and rubbing it, but there were too many people on the deck, so I didnt have a chance..." ?Wang Weis answer triggered another round of cheers Alaslanding on the aircraft carrier ??This topic was suddenly mentioned, and Tang Yiping couldn''t help but sigh a little when looking at the photo: Speaking of which, in the 1980s, we even considered introducing an Invincible-class aircraft carrier like the Excellence from the United Kingdom. One sentence can temporarily silence the noise around you. ?This story is relatively unfamiliar to most of the young people present. ?Seeing that many people were interested, Tang Yiping continued: "At that time, it was still the so-called honeymoon period. Many things could be bought, such as the engine used by the Flying Leopard, the electronic equipment of the J-7M, and the 051S destroyer, which was just short of finishing. They all came from the British. Back then, This combination of light aircraft carrier and vertical take-off and landing aircraft is still very attractive. Its just that later on, one was that their price was too high, and the other was that our relationship with the West was not that good, so this matter was never mentioned again. Now it seems that this kind of light aircraft carrier is nothing more than that Someone in the crowd answered. You cant say that either. ?Tang Yiping shook his head: Although it is definitely not as good as a serious large or medium-sized aircraft carrier, even a vertical short take-off and landing aircraft like the Sea Harrier is much better than a helicopter. Take this operation as an example. If our JHD-7 hadnt discovered in time that the Zhuoyue was recovering the aircraft, and took advantage of the opponents weakest moment to take action, Im afraid it wouldnt have been so smooth. "If a navy really wants to go to the ocean, then aircraft carriers are still indispensable. It''s a pity that I have to be grounded in two years. Carrier-based aircraft... I will definitely not be able to catch up, but I am still very optimistic about you guys. Young people have opportunities..." In the relaxed chat, time flies by minute by minute. At 11:42 pm, the political commissar turned on the TV on time. The ceremony officially begins Everyone fell silent. Arise, you who do not want to be slaves I dont know who started it. Everyone present gathered in a semicircle and watched the five-star red flag and redbud flag slowly rising while the national anthem was played. ?That is exactly what they are fighting for. (End of this chapter) Chapter 342 In the end, I couldn’t escape the lectur Chapter 342 In the end, I still cant escape the lecture. Of course it was not only the commanders and fighters of the 9th Hainan Division who were watching all this on TV. Chang Haonan, who was far away in the capital and still didn''t know what happened in the past half day, also gathered at Du Yishan''s home with Tang Lintian and Liu Hongbo. While waiting for the ceremony to begin, several people had been busy making dumplings. Lamb meat stuffed with carrots. Although the ticket system has been abolished in 1997, it is not easy for most ordinary families to enjoy such a big meal of meat dumplings. At least it was not until the end of last year that Chang Haonan received his first bonus from Factory 182, and finally said goodbye to the days of having to calculate expenses for food every day. Hey! The mutton in Academician Dus house is really not spicy at all! Tang Lintian picked up the enamel basin filled with stuffing, put it under his nose and smelled it. "Of course, Yan Liangchu brought this from his hometown in Tongliao. Who of you wants it?" ?Du Yishan, who was sprinkling flour on the rolled-out dumpling wrappers next to him, said. Liu Hongbo had just washed his hands and walked into the living room. Hearing Yan Liangchu''s name, he casually interjected: "Speaking of Dr. Yan, I was planning to call him here today, but it turns out that he has been on a business trip to Shengjing recently. He said he was working with the 601 Institute and the Sukhoi Bureau to build a database of aircraft load spectra. , to solve some structural reliability design issues in the original plan of Project 11. Chang Haonan, who had not interrupted just now but was adjusting another pot of stuffing while paying attention to the TV screen, was also attracted at this time, and blurted out in surprise: You started working on Project No. 11 when you were a doctoral student? Strictly speaking, the title + doctor is generally used to refer to people who have obtained a doctorate, but have not engaged in related work, and therefore have not been able to obtain relevant professional titles. But in environments such as universities and research institutes, whenever a person joins a job, he must have a professional title such as engineer or lecturer. Therefore, in most cases, Dr. This is the PhD candidate who is about to study. Over time, it became a convention. So his first reaction was: Are there any experts? As soon as Chang Haonan finished speaking, Du Yishan was fine. Tang Lintian, who was opposite him, immediately stopped moving his hands and looked at him with an indescribable look. ?Its okay for others to say this. You, Chang Haonan, are the people who have already launched several big projects without even graduating from a bachelor''s degree. Is this good? not good. ??Tang Lintian opened his mouth, as if he wanted to say something. But he didnt say it out loud. ?Young people dont follow martial ethics, so the old man like him didnt know how to answer for a while. ??And Liu Hongbo, who was trembling when surrounded by three big guys, simply covered his face and lowered his head. Who am I, where am I, I am an ordinary university professor, why do I want to join this bureau... NoI mean Chang Haonan, who saw this scene, also realized that the wording he just used was somewhat inappropriate, so he made up for it a little: Ive been busy with the 973 project recently, so I want to get to know you... Du Yishan understood Chang Haonans feelings better and explained directly: "Yan Liangchu''s situation is different from yours. He is a college student of workers, peasants and soldiers. After graduation, he worked in the Aircraft Strength Institute for more than ten years before taking the postgraduate entrance examination. Although this institute is affiliated to the Ministry of Machinery Industry, in recent years, because of their old The industry is in a recession, and his main business is research on aircraft and rocket structures, so he is already a very experienced aviation veteran. "Furthermore, when he went to Shengjing this time, he was encouraged or inspired by you. Based on your previous results, he came up with a set of spatially distributed load testing technology. It just so happened that 601 over there because of you and In the case of Xiao Yao, we started to accept outstanding graduate students from universities into the project team. At this point, he couldn''t help but glance at Liu Hongbo, who had just raised his head. So the latter lowered his head again. ??Tang Lintian, who had just recovered from the indescribable situation, also nodded: Indeed, for this matter, Dr. Yan ended the project that he had been working on for three years and started a new project of compiling the load spectrum. His attitude was quite determined. This is a good thing, we just want to make Chinas Su-27 better than Lao Maozis own! ?Chang Haonan kept making dumplings in his hands, but his joy was already beyond words. ?Just after Du Yishan talked to Tang Lintian, he also recalled Yan Liangchu, who was also later evaluated as an academician. After entering the 21st century, Chinas important aviation projects, including fourth-generation fighter jets and large aircraft, have basically involved him. ? Whats more coincidental is that the technology used by Chang Haonan on the MA60 was originally overcome by Yan Liangchus research team.??????But that was around 2010. Now, the other party has been influenced by Chang Haonan''s results and embarked on the same track as the previous life ahead of schedule. In short, looking at it this way, the two of them seem to be quite destined. ?Of course, this is not the only reason why Chang Haonan is happy. More importantly, as his own achievements continue to increase, it has led to more and more other people and even progress in other research fields. ?The biggest benefit of this is that Chang Haonan, who is very busy, does not need to personally participate in many repetitive projects. For example, the results he previously achieved in Project 83 can be applied by others to the two third-generation aircraft projects and the upgrade of the JH-7. The technology developed in Project 10 can also be applied to Project 11. Inside, work efficiency is greatly improved. ?This is also the reason why Chang Haonan can now stay in Beijing and focus on basic research projects such as die forging presses and simulation software for a period of time. Otherwise, it would be like when he was just reborn, just rushing around would have been enough for him. ?Although there is still some fire-fighting work, at least the same type of fire basically only needs to be put out once. By the way, junior brother, what are your plans for the second half of the year? Liu Hongbo raised his head for the second time and asked cautiously, Our textbook is ready for publication. If nothing else happens, your graduate students should be the first batch of students to take this course Actually, this sentence has two meanings. First, if you are free to come to class, can you teach directly for me? Second, if you are unwilling to attend class, then for the sake of all of us, you should not come to class. But this expression is still too euphemistic. So Chang Haonan thought that Liu Hongbo wanted him to attend a few classes and then make an evaluation. The second half of the year...should be quite busy. Chang Haonan thought for a while and then replied: "There are two plans that I will take the lead or focus on. In addition, I will also participate in the higher education aircraft and Project 10 of Guizhou Airlines, and the early warning aircraft jointly developed by the 14th Institute and the 603 Institute, but the early warning aircraft I dont know when it will be approved The names of these projects made Liu Hongbo sweat on his head The current ranking of my junior students is basically on par with senior professors in some fields. The only difference between him and a great academician like Du Yishan is that no one has paid him to name him yet. ?But looking at this posture, its very fast. After all, if you think about it, it seems that all the opinions put forward by Chang Haonan eventually became at least a project. Some have even become ministries or even national-level plans. ??Who wouldnt be envious after seeing this success rate... After a pause, Chang Haonan continued: However, since you have spoken, Senior Brother Liu, most of these projects will be in the capital in the second half of the year, so I can still find time to attend a few classes... Liu Hongbos head was sweating more: "No, what I mean is, this... If you, junior brother, are sitting down below and I am on the stage, I won''t dare to speak..." So can you... show me two lessons first? Before Chang Haonan could react, Tang Lintian and Du Yishan on the side also joined in. Its just two lessons. With Xiao Changs level when you taught simulation before, you can take it casually, dont have any worries... Yes, Xiao Liu is your senior brother after all, please help me... Looking at the three people who were perfectly connected, Chang Haonan seriously suspected that tonight was a set up... But since others have said so, what can he do? ??Had no choice but to nod in agreement. ?But I emphasize again and again that it is only one section at most. In the end, Liu Hongbo agreed without even hesitating. This made Mr. Lu Xun''s words ring in Chang Haonan''s ears. Chinese people always like to compromise MD, I was tricked! (End of this chapter) Chapter 343 Even after victory, we must learn from our experiences and lessons Chapter 343: Even after victory, we must draw lessons from our experiences With the declaration of "You can lay off, we will take over", the entire handover ceremony reached its climax. These days, even in the capital, there is no ban on setting off fireworks, so at this time, bundles of fireworks exploded in the air outside the window, making the night sky look like day. Good guy, the atmosphere tonight is almost the same as during the Chinese New Year. Chang Haonan held a colander in his hand, put the dumplings that had floated in the pot into a basin, and then looked at the colorful flames outside the window. Thats different. Liu Hongbo, holding soy sauce, vinegar and chili oil in his hand, responded next to him: The Spring Festival happens every year, but today will be gone in the past. The other three people laughed dumbly. That is indeed the case. Even though Hong Kong Island is not the first or the last place to be reclaimed, its symbolic significance is really great. After all, a century of national humiliation began here. You said, this Englishman didnt do anything behind his back tonight? Facts have proved that when a group of people talk about this kind of topic together, whether they are retired old men or academicians and professors, they feel the same. "There should be, but I think we will all have ways to deal with it. After all, the flag has been raised successfully, so what else can go wrong." Du Yishan has quite a lot of life experience, and he immediately came to a conclusion that was very close to the truth. ?Chang Haonan thought of the news he saw in the newspaper a few days ago: "I read in the newspaper before that the British sent a large fleet over, but it seems to have been in the South China Sea and did not dare to continue to provoke further north. I don''t know if they will do anything tonight." "Should I say it, although our air force equipment has made some progress, the navy does still owe a lot. Not to mention aircraft carriers, there seems to be no larger surface ships." When it comes to the fleet, Liu Hongbo is obviously interested. Men can treat warships as wives. There are a few people who dont like the navy. Speaking of this air force equipment, our Comrade Xiao Chang plays the most important role in it..." ?Du Yishan picked up a dumpling and said cheerfully. ?This day, which attracted worldwide attention, seemed to pass peacefully. Excitement and celebration are always short-lived. The next day, everyone has to devote themselves to work with more ambitious goals. Two days later. In a conference room at the Lingshui base, all members who participated in the embankment construction operation sat together again. Its just that this time its the summary session after the mission. Originally, the naval aviation department was planning to hold a meeting early the next morning. ??However, the impact of the embankment operation has obviously been beyond the scope of a certain military service. After all, Air Force aviation, naval aviation, surface ship forces and even the Marine Corps on standby are all involved. ??More importantly, in the early morning of July 1, the British side sent someone to deliver a secret note. ?Only a very few people know the specific content. However, combined with the fact that the British parliamentary election, which had been deadlocked for nearly two months, suddenly showed a one-sided trend, many Conservative MPs even actively chose to give up their seats, allowing Anthony Charles Blair to become the 51st Prime Minister with an unprecedented advantage, and China Both China and the UK chose to handle this matter in a completely low-key manner. There is obviously some ulterior connection behind this. ?Furthermore, all the internal publicity that had been prepared was stopped, and everyone directly involved in the operation was asked to write a written report on the situation. So the whole next day, everyone was racking their brains and busy with this matter and failed to make time for a meeting. It was not until the warships Jingjiang and Rongzhou, which also participated in the operation, returned to port that a larger-scale summary meeting was held at the Lingshui base. The meeting was chaired by Yang Shuyu, who had participated in the air-sea joint exercise before and had personally experienced the power of electronic warfare aircraft, and Shen Tianfeng, who was dispatched by the Air Force. Although the specifications are very high, it is still a summary of experience after successfully completing the task, so the atmosphere is still relatively lively.?????The first step is to set the final tone of the task. Following this is a review of the entire process. Then the results are summarized. Very traditional three-in-one. ??Of course, awards to those who participated in the mission are also indispensable. "Taking into account the good results achieved in this operation, the organization finally decided to award first-class collective merit to three units: the 25th Regiment of the 9th Naval Aviation Division, the 4th Regiment of the 2nd HNA Division of the Naval Aviation, and the 39th Regiment of the 13th Air Force Division. Tang Yiping, Wang Wei, Zhao Yi and other eight people who directly participated in the flyby mission received first-class individual merit..." As Shen Tianfeng read out, everyone had a smile on their face. After putting down the documents in his hands, he explained: "Comrades, here I am just making an announcement. Due to the special circumstances of this mission, the official documents for your meritorious service, as well as medals, bonuses and certificates, need to be awarded at the end of the year. I hope everyone can understand. " ?This is naturally not a big deal, even the order has been read out, and the People''s Liberation Army will not blackmail anyone''s medal. ?However, after this process ended, the entire summary meeting did not end. A photo was then displayed on the big screen. A photo of the aircraft carrier deck taken from an oblique downward perspective. There are two Sea Harrier aircraft in preparation for take-off. And a dozen British sailors with different expressions and movements. Apparently, this is one of a series of photos taken by the photoreconnaissance pod. ??Although Wang Wei had reduced the speed as much as possible at that time, after all, it was a very low-altitude flyby and the angular speed was too high, so the clarity of the photo was still not enough to clearly see the person''s appearance. But they can still feel their panic and panic. Our camera pod took a total of 18 photos related to the opponents fleet. This is the best one selected by the General Intelligence Bureau. ?Yang Shuyus words were full of pride, Not only them, but I also think it was a good shot. The British came with a fleet. They originally wanted to scare us, but what happened? They themselves were scared away. What does this mean? When the leader uses a question, there are two possibilities. First, he will answer it himself later and ask questions. Second, he needs a supporter. Now it is obviously the second case. So someone in the venue said: It shows that imperialism is a paper tiger! Many people chuckled. For a long time, especially in the past few years, the confidence to say this was actually not sufficient. But its different today, its very satisfying. "This sentence is true. It is indeed a paper tiger. History and reality have proven countless times that as long as we are not intimidated, the enemy will be afraid." However, when speaking of this, Yang Shuyu changed the subject: However, a paper tiger is still a paper tiger. This is from a strategic perspective. From a specific and local perspective, we still need to pay attention to it. Comrades, although we can say that we have achieved a complete victory in this embankment building operation, we still have a lot of experience and even lessons to learn. The atmosphere in the venue suddenly became serious. Next, let me ask Comrade Kang Shijun, who also participated in this mission and served as the commander of the Yun-8J warning aircraft, to say a few words! (End of this chapter) Chapter 344 Go ask the experts to help Chapter 344: Ask experts for help ?Among the secrets of victory summarized by the People''s Army, there is one: "Learn war from war, and summarize war from experience." It can be understood as a more advanced version of not being arrogant in victory and not being discouraged in defeat. This is also a fine tradition that our army has inherited to this day. Therefore, when Kang Shijun picked up the microphone next to him and sat up straight to speak, everyone in the venue, including several leaders on the podium, took out pens and notebooks to take notes. Dear leaders and comrades, my name is Kang Shijun, so I wont introduce myself too much. During the embankment building operation, the No. 9301 Y-8J maritime surveillance aircraft I commanded, codenamed Polaris, was responsible for attracting the attention of the opponents carrier-based aircraft, searching for the location of the target fleet, and conducting simulated command of the tactical aircraft formation performing the mission. "According to the plan, our aircraft will operate at the edge of the opponent''s carrier-based aircraft''s combat radius to avoid direct contact with the enemy and delay its return as much as possible. However, during the actual execution of the mission, our aircraft was intercepted by the enemy''s carrier-based aircraft. The two Sea Harrier fighter jets suffered severe electromagnetic interference when they were about 80 kilometers apart and about 220 kilometers away from the opponent''s fleet. Even after switching several modes according to the usual training methods, it was still ineffective. " "Because our aircraft lost its target, after continuing to fly for 30 seconds, it chose to turn to direction 45 according to the backup plan, and then flew in a zigzag route. After 10 minutes, the interference disappeared and the radar working status returned to normal. Then it returned due to insufficient fuel. There was no visual contact with enemy aircraft throughout the entire process. Throughout the entire mission, our aircraft completed the task of attracting the attention of the carrier-based aircraft, but due to the failure of the radar, it was unable to command the combat aircraft Since the mission experience of Yun 8J was generally relatively simple, and Kang Shijun also maintained the conciseness and ability unique to soldiers when speaking, it only took about ten minutes to conclude this summary. ?However, in just these ten minutes, the entire venue fell into silence. ?Just before his speech, although everyone had become serious, they still had the mentality of winning a great victory, and the excitement had not passed yet. ?Now, Kang Shijun''s report was like a basin of ice water falling down the head, making everyone completely regain their composure. Just because the results are good, it does not mean that there are no problems. First of all, I feel that after all, everyone fought a good battle, and it was a tough battle, so there is no need to make the atmosphere too heavy because of this incident. ?Yang Shuyu, who was still presiding over the meeting, broke the silence: "However, as the Y-8J is an important part of our navy''s anti-ship operations, the reason why such a big problem occurred in this mission that is closest to actual combat still needs to be clarified. Next, we are going to hold this Zhuge Liang meeting. I want to hear Lets hear your thoughts from the grassroots commanders and fighters who are on the front lines. Actually, our crew made some summaries after returning home, and the engineers from the electronics group on site also analyzed the data we brought back. The speaker was Shen Tao, the commander of the 4th Regiment of the 2nd Hainan Division and the captain of the 9301th flight 8J. "I participated in the confrontation exercise organized by the Navy a few months ago. The red team on the other side at that time was the No. 22 JH-7 that also participated in this mission. It also implemented very successful electromagnetic interference against us, causing me to The aircraft lost its target at the last moment of guiding the sea attack, but the characteristics of the interference we encountered this time were completely different from those before. " Judging from the situations encountered during the mission, Electronics Group engineers believe that the other party should have implemented some kind of very targeted interference. Targeted jamming ??The pilot of one of the JH-7 frowned slightly when he heard this. In terms of organization, these two electronic warfare aircraft are also affiliated to the 4th Hainan Airlines Regiment like the Yun-8J. However, because the ground support team at the Donglai base does not have the ability to maintain the JH-7 platform for the time being, these two aircraft were transferred to Qingtang. Before participating in intensive training, I had been parked at Factory 172. Even the four pilots were temporarily loaned from the East China Sea Fleet Aviation Force, so they were not very familiar with their nominal commander Shen Tao. "But you were more than 200 kilometers away from the British fleet at the time. Targeted jamming relied heavily on reconnaissance parameters. At this distance... whether it was their shipborne radar or the airborne radar on the Sea Harrier, it was difficult to accurately detect you. , it shouldnt be so obviously affected. As electronic warfare pilots, they have also gained a lot of relevant knowledge during this period, and understand that interference with radar, especially small and large interference, is actually not harmful. easy. ?Some relatively smart interference methods such as convolutional deception interference and motion modulation interference require not only the stable interception of radar signal characteristics, but also the accurate acquisition of target position, speed, height and other information. In other words, for radars with little performance difference, the anti-interference ability of air platforms is inherently better than that of land-based/sea-based platforms. ??The weapons controller of another No. 21 JH-7, the one who took the photo of Wang Wei, expressed a different opinion: "But if they use cover jamming, then we will definitely be affected. But the actual situation is that our passive detection radar only found a very clean S-band, which is the long-range on several destroyers and frigates in the opponent''s fleet. The signal emitted by the warning radar..." Even after more than a month of joint training, most pilots can only say that they have a basic concept of electronic interference and cannot grasp the specific principles. Therefore, they can only look at a few things with some confusion. A quarrel between two special aircraft pilots. However, the results are very obvious. It is that they failed to argue to a final result. In terms of electronic warfare, if you really want to be an expert, I know two of them After several major combat forces were already thirsty, Commander Shen Tao suddenly proposed a compromise opinion: Why dont we ask a foreign aid to ask? Shen Taos suggestion quickly won unanimous approval from the participants, so the discussion on the disruption to sports naturally came to an end. Then the next topic comes. ?Yang Shuyu took out a photo from the briefcase he carried with him and placed it on the slide base. An unclear outline was displayed on the big screen. But everyone from the navy can still see some clues. It seems like a submarine? Thats right. ?Yang Shuyu nodded, This was taken by someone near the Bab el-Mandeb Strait, and it was determined to be a Trafalgar-class attack nuclear submarine, which is in the fleet of Wave 97. But we didnt find it the whole time. Its the end of the year, and my own project also needs year-end settlement and progress reports, so it should be difficult to update in the second half of the month... (End of this chapter) Chapter 345 You still can’t rely on outsiders for key equipment. Chapter 345: You still cant rely on outsiders for key equipment ??For the Chinese Navy in 1997, if the air defense capability required Nuwa to patch up the sky, then the anti-submarine capability was still waiting for Pangus creation Basically equivalent to non-existence. As to how bad it is specifically... In short, until the first decade of the 21st century, the propaganda of anti-submarine warfare in our military''s propaganda materials mainly focused on the excellent hearing of sonar personnel... ??The two warships Jingjiang and Rongzhou dispatched this time have neither anti-submarine helicopters nor towed sonar. Not only can they rely on hull sonar to search for submarines, but the only weapons that can attack submarines are rocket depth bombs... ?In the entire South China Sea Fleet, only the "new" destroyer 166 Xiangzhou, which was commissioned six years ago, is equipped with a set of DUBV-43 towed variable depth sonar imported from France. ?However, its main function is to conduct testing and technical verification. Due to the limited performance of the sonar itself and the huge noise of the ship, the actual submarine search capability is better than nothing, so that this set of things was directly dismantled during the modification after entering the new century. Not to mention the torturous service capabilities of the 051 series ships, the 166 ship is currently in the maintenance and overhaul period after the last voyage and is simply unable to perform this mission. After hearing the news, the captains of the two surface ships didn''t look very good. ??With the protection of comrades from the naval aviation, the tops of surface ships are indeed much safer than in the past, but the threat from below has not weakened at all. They are not afraid of fighting the enemy desperately. Its just this invisible opponent who doesnt even have a chance to fight. When they thought that their warship might even be under the surveillance of the opponent''s nuclear submarine the whole time, the two of them felt their scalps go numb. The Type 601 and Type 675 sonar equipped on our ship, even in the previous test state, the detection distance for Type 033 submarines is only 6km Although the reality was very cruel, He Hu, the captain of the Jingjiang, could only bite the bullet and report the situation at that time. "Furthermore, because the Type 22 frigate sent by the other party to confront us is very fast and the speed change is very flexible and agile, in order to ensure that the ship can speed up quickly, our ship has to keep the boiler at a high power level, causing the ship to make noise Its too big. In fact, it doesnt have the conditions to turn on the sonar equipment At the end of the sentence, his voice became much softer. Because no matter how you sound, it sounds like you are shirking responsibility. But this is the reality. This is true for steam turbine ships, not to mention the Rongzhou using a diesel engine. The noise and vibration of an internal combustion engine traveling at high speed will only become more terrifying. The leader sitting on the stage naturally saw He Hu''s concerns. Comrade He Hu, dont have any psychological burden. We are all materialists. The objective situation is the objective situation. Speak out boldly. "Report, I spent some time on the North Sea Fleet''s destroyer Ice City last year. I think that if we really want to strengthen our anti-submarine capabilities, we must first consider adding a gas turbine in terms of power, so that we can search for submarines at medium and high speeds. capabilities, and the other is aviation anti-submarine capabilities. The search capability of an anti-submarine helicopter is at least equivalent to 2-3 surface ships..." He Hu was encouraged to express his thoughts. In a word, it is difficult to make a meal without rice. This high-tech battle still requires new equipment. ?Of course, with his position as a colonel and captain, these words can only be said. ??Everyone knows that the navy''s current desire to build new ships, especially new ships powered by gas turbines, is not a matter of military spending at all, but that after the supply of the LM2500 gas turbine was cut off, it could not even find a reliable power source. ??If domestic manufacturers had not urgently conquered the repair and remanufacturing technology of some wearing parts, even the Type 052 No. 2 ship would not have been built. Because it is necessary to provide spare parts for the No. 1 ship. However, for Yang Shuyu, this is not the case. Because there is currently a new frigate project that is at the final stage of program selection. Two options, one is full diesel power and build a smaller version of 052. The second is full combustion, or at least diesel-fuel alternating power, which is a completely new thing. Party B, who is responsible for the design, is unabashedly inclined to recommend the second option. The advantage is that the potential is greater and the localization rate of the power system is higher. The foreign exchange saved can even buy a batch of 27PS anti-submarine cards at a ratio of 3:1. helicopter. But it is not without risks. Even the prototype of the domestic gas turbine is still in the manufacturing stage. If the specifications fail to meet the requirements, there will be no substitutes and we will have to completely overturn it and start over. On the other hand, although the domestic production rate of the Pilstick diesel engine is average, it is something that is immediately available and has been used smoothly, and there will definitely be no mistakes. And if converted according to the exchange rate, the price is cheaper. Anyone with a discerning eye can see that at the current rate of development, the country''s foreign exchange shortage may not last for many years. By the time such ships are built in batches, there is a high probability that such a strict foreign exchange quota system will not be implemented. So the navy was still hesitant. ??But under today''s situation, Yang Shuyu''s heart moved a little. Generally speaking, such a decision related to the overall development of equipment is definitely not decided by one or two people, and a small person like He Hu has no way of exerting any influence. But if the balance of the game is in the middle, even the weight of a hair can sometimes be enough to change the overall situation. The other side. ?Unsurprisingly, an encrypted letter was delivered to the capital the next day. ?According to the requirement of "not reading and handling secrets in unclassified places", Chang Haonan was received into a conference room of the Commission of Science, Technology and Industry for National Defense. "I think we can consider setting up a permanent office for you here. If you have military-related matters that are inconvenient to handle at home or school, you can come to us to work." Huai Guomo, who accompanied Chang Haonan, said in a half-joking tone. ?Now that the Ministry of Science and Technology has assigned Chang Haonan an official title as the 973 Project Expert Group, the Science and Technology and Industry Committee must express something as Chang Haonan''s "native family". ?Although Chang Haonan thinks this opinion is good, he still doesn''t feel embarrassed to ask for it. In fact, he may not be able to come to the Science and Technology Committee twice a month. It is too luxurious to have a separate office. Besides, its a bit high-profile. It doesnt suit his character. Hai Guo Mo did not force it, anyway, there are many opportunities later. He just handed the letter to Chang Haonan, and then sat on a sofa in the corner of the conference room. Let me go...this British man is indeed dishonest... After reading the entire content of the letter, Chang Haonan leaned back on his seat and muttered to himself. ?Having said that, there was no anger or solemnity on his face, but a mysterious smile. Rubbing his swollen forehead, Chang Haonan picked up the paper and pen he had prepared long ago from the conference table and began to think about the wording of the reply. What, you figured it out now? ??Huai Guomo on the other side of the room was already prepared to wait for several hours or even half a day, but in the end, he didn''t even sit down to warm his buttocks, and he seemed to have settled the matter... ?This efficiency is truly astonishing. This...of course it cant be something I just started thinking about. Since the other party asked such a question, he must know the content of the letter, so Chang Haonan gave a direct explanation: This is something I have thought about before at the Institute of Electronics 14. Chang Haonan said and began to write: Actually, they have made things complicated. In this case, it is obvious that the Harrier that the other party took off brought electronic jamming equipment, and it should be a very old type of simple noise jamming equipment. Huai Guomo was born in chemical engineering and didnt know much about electronic information technology, but these basic things were not difficult to understand, so he was stunned when he heard: Then isnt the British technology very powerful? Their previous pods were more effective than the electronic warfare aircraft we just put into service, and the Sea Harrier shouldnt have professional electronic warfare modifications, right? "That''s not the case. Although it is generally believed that noise interference power requires a lot of power and is an imprecise cover interference, as long as the precise signal carrier frequency and bandwidth characteristics of the radar can be obtained, targeted interference can still be carried out. This does not mean that The opponents technical level is higher than ours. Chang Haonan, who was writing furiously, shook his head. "For normal electronic jamming equipment, this kind of operation requires analysis after intercepting the signal, which requires very high algorithms, especially the current agile frequency radar, which is even more difficult to handle. However, the SouShui 2000MS is originally a British product. They must have a standard answer, so they can skip this most difficult step." Its equivalent to the math test steps having been written out, and they just have to calculate the answer at the end. Of course, the results will come out quickly, but it doesnt mean they have the ability to calculate the question from scratch. ?His original intention at the beginning was actually to comfort the somewhat panicked Deputy Director Huai. But after saying the second half of the sentence, the other party seemed to be even more panicked... (End of this chapter) Chapter 346 Its the Prime Minister who really didnt lie to me. Chapter 346: The Prime Minister really didnt lie to me Its no wonder that Huai Guomo had such a big reaction. ?In many of the Navys combat scenarios at the turn of the century, the role played by the 8J was almost always at the core of combat operations. Whether it was the initial low-altitude penetration of a JH-7 aircraft fleet or the subsequent large-formation assault after the Type 22 missile boats came into service, this kind of maritime surveillance aircraft is required to perform target search and relay guidance tasks. Although this method has limited effect against opponents with aircraft carriers, it is after all the only advanced tactic that the Chinese Navy can use in this era. As a result, this time, he was directly interfered by the other party! ?When it was decided to import eight SouShui 2000 radars, the country also thought that the British might do something with the equipment. ?However, at that time, everyones understanding of electronic warfare was not deep enough, and they did not have this string in their minds. The main concern was that the other party would compromise on the performance and functions of the equipment, which was the so-called "monkey version" of export. After all, we have suffered such losses when doing business with Americans in the past ten years, such as F16/J79 and the like. At the time of signing the contract and subsequent acceptance, we also took special precautions in this regard. It turns out that peoples current routines have evolved. There is nothing wrong with the exported equipment itself, but others hold the key to countering you. Fortunately, this is just a confrontation. If it is really a conflict or even a war, it will be discovered at the end of the matter that others can easily disable one''s most critical radar even if they use equipment from twenty years ago. The consequences will be serious. ??Although there is no longer much conflict between China and the United Kingdom, especially the United Kingdom that has completed the change of leadership, it is well known that the secrets of the British are completely open to the United States... ?This is not the end yet. Huai Guomo quickly thought of something more fatal. Yun 8J was still just a transitional product in the original plan. but. Ring Project. ?That is a strategic project related to the improvement of the Air Force''s combat effectiveness in the next 15-20 years. From radar to command terminals, as well as electronic countermeasures equipment, a full set of equipment from the Great Patriotic State is used. ??The British are not reliable, so how can David be reliable? ? It is a trivial matter that the budget of more than one billion has been wasted. The key point is that the research and development progress of the early warning aircraft may be delayed for several years or even longer. Thinking of this, Huai Guomo almost broke into a cold sweat. Is there any solution to this situation, I mean, remedy? He asked solemnly. The problem with the Ring Project is that the contract on China''s side has already been signed, and the advance payment of 350 million has been paid. If the contract is terminated now, we will be the ones who breach the contract. This is another reason why Chang Haonan did not rush to stop this project before (the first reason is that this kind of strategic project cannot be stopped just because of one person) - ??Anyway, he knew that the David Council would take the initiative to breach the contract later, and China would not suffer much loss in terms of money. As long as it ensured that the domestic early warning aircraft project was promoted without delaying time, it would be fine. "There is no trick, the only way is to completely modify the hardware, at least the transmitting circuit part, which is equivalent to fundamentally changing the signal characteristics of the radar, so that it will not be predicted in advance by the other party, just like this time, even if it was originally No matter how strong the electromagnetic interference is, there will still be a delay of several seconds before the interference can be re-implemented after we switch modes. However, judging from the feedback from the crew, the opponent''s countermeasures arrive almost simultaneously. It is obvious that they know everything..." When Chang Haonan said this, the pen in his hand suddenly stopped He just realized something. Of course he knew about the Wave 97 task group, but why did an aircraft originally belonging to the North Sea Fleet Air Force encounter the British fleet in the South China Sea? Director Huai. ?Chang Haonan looked at the other side of the conference room: "Did something happen two days ago? The letter just said that a Y-8J was intercepted by a British carrier-based aircraft, but I think this kind of thing will not happen for no reason." ? ? "You don''t know?" ? ? ? Huai Guomo was confused at first when he heard this question, but after a moment, he slapped his thigh fiercely. "Blame me, blame me, forget that you are not an official staff member of our Science and Technology Commission... Because the impact of this matter is too great, the current scope of publicity is very limited... Of course Xiao Changqian and Academician Du can know, but it will not be officially disclosed Do not disclose the information to others before." Obviously, this is a big deal. ?Chang Haonan nodded to express understanding. "In fact, a few months ago, when the Hailang 97 fleet set sail, the Navy and the Air Force jointly formulated a set of response strategies. Simply put, it was to replace it with new equipment. In fact, it was the Navy after the J-8C and JH-7 The aviation force is the main force, to scare the British who come to stir up trouble." "On June 30, one of our three-aircraft formations directly broke through the air defense of the fleet on the opposite side and flew over them. A pilot named Wang Wei even dropped it near their flagship, the aircraft carrier Excellence. Two auxiliary fuel tanks..." Huai Guomo spent about ten minutes recounting what happened that day. Chang Haonan was immediately happy: Is there such a thing? Compared to the previous interception of the MiG-25 of a triple-sonic squadron, although this time it did not bring any direct results, it was much more exciting in terms of appearance. After all, the Indians were our defeat 35 years ago, so it seems logical to attack them again now. But the British are different. ??Although the British army suffered several small losses in the face of the People''s Liberation Army, overall, as an old empire, even if it has declined now, China still feels proud after doing so all of a sudden. Especially at such an important time. ?It can be said that a century of humiliation has been wiped away. Its a pity that we cant publicize it. After being excited for a while, Chang Haonan said with regret. After all, it is better to be happy alone than to be happy together. No matter how happy you are, if only one person knows about it, you will not be happy for long. There was nothing we could do about it. Originally, at least it could be made public within the army. Even the manuscripts of commendations and publicity were written, but the next day, the other party suddenly sent us a note..." Why, are they still planning to continue causing trouble? ?Chang Haonan raised his eyebrows, a little surprised. Generally speaking, in this kind of thing, you have to accept the loss. Anyway, there will be no real losses. At most, a few relatively vulnerable people will be frightened into mental illness. This is also the ideological construction of the opponent''s army. If the work is not done well, it has nothing to do with us. On the contrary, they are here to de-escalate. Huai Guomo waved his hand: "The things here are more complicated, involving the change of their parliament, and more importantly, the scandal of the royal family... In short, the new one in the UK is the Labor Party, and they have also benefited a lot from this incident, so Very willing to do business with us and develop relationships. So although there were some interludes in the middle, judging from the results, we achieved a complete victory under a combination of circumstances, no matter on which level. ?Chang Haonans first feeling was that he was speechless. "Yes, Prime Minister" Don''t lie to me. ??This group of people are really willing to do anything to secure their positions. But for China, it is obviously a good thing. In this era, Britain still has many areas worthy of cooperation. (End of this chapter) Chapter 347 Get a heavy-duty die forging press! Chapter 347 Build a heavy-duty die forging press! It seems that it can be regarded as accomplishing multiple things with one stone. This news obviously put Chang Haonan in a good mood. This is often the case in Western countries. Only if you show corresponding strength, they will be willing to talk to you on an equal footing. If you remain polite all the time, others will easily mistake your good intentions for weakness. ?This just frightened the British once, and they rushed to improve relations. In fact, it is cheap. ?But no matter what, we still have to fight for the power we can get. ??Although the relationship between Britain and the United States is a conjugation of father and son, in the late 1990s, Daiying was still more thoughtful, and he was not the clown that he was later. Lets get it right. After all, Huai Guomo was a man who had seen many big storms. He was just shocked by something he had never thought of before, and he lost his composure a little. ??Even for a moment, I thought about rushing out of the door, directly finding Ding Gaoheng and asking to report to him. ?However, he quickly regained his composure in the end. ??Chang Haonan was still sitting calmly, and it was really outrageous to act surprised in front of people of this generation. There is no rush to spend these few hours. So I sat down again and chatted with Chang Haonan about the British reaction to this matter: In fact, at the very beginning, the purpose of this operation was just to protect July 1st and prevent the other party from provoking. As for what happened later, it was actually a complete surprise to us. ?Chang Haonan has never been a big chess player, so he doesnt feel like an idol is ruined by this explanation: "No matter what, opportunities are always reserved for those who are prepared. Now that we have caught up, it is ours." ?This sentence of course contains two levels. One is the army''s precautionary measures in this matter. Second, he assisted the aviation industry and electronics industry in developing corresponding equipment in advance. Each one is indispensable. Actually, there are some unconfirmed rumors. Huai Guomo gently touched his chin and said in a gossipy tone: It is said that the divorce between their prince and princess two years ago has become a big deal recently. In order to divert public attention, many companies with royal background have invested in supporting the Wave 97 fleet. "Now this fleet has failed to show its face, but instead has exposed its butt. If we make the matter public, it will be tantamount to slapping the Queen across the face. That''s why this time their conservative party has almost surrendered. ??Chang Haonan had no way of knowing about this kind of thing in his previous life, so he just treated it as a story. ?But he remembered that it seemed that the Princess of Wales was indeed going to die soon... In about two months, she will be killed in a car accident. As to whether this car accident was an accident or not, thats all open to debate. ?Of course, this matter has nothing to do with Chang Haonan. Having worked as an engineer for most of his life in his previous life, he also lacked research on the British aristocratic system and issues related to the royal family. So just go through it in your head. Just wait and see the news then. The reply to the 9th Hainan Division was full of technical issues, so it was not long and was written quickly. As for the ring plan, Chang Haonan believed that he did not need to say anything. ?From Huai Guomo''s pale face just now, he knew that the other party had already drawn inferences from one example and realized the risks of cooperating with David to develop early warning aircraft. We are all decent people and there is no need to explain many things clearly. Xiao Chang, I heard from Lao Du that the tasks on your shoulders in the second half of the year are still relatively heavy. Huai Guomo stuffed Chang Haonan''s reply into an envelope and put it into his briefcase, but had no intention of leaving. Instead, he chatted with the latter about work issues in the second half of the year: "What are your priorities? If you need help from the Science and Technology Commission, just ask us directly and we will try our best to meet your needs. Facing this important issue, Chang Haonan''s expression suddenly became solemn. He took a rough look at the situation in front of him. Priority is not a simple sequential ranking. Although almost all projects at hand are inseparable from the support of the Science and Technology Commission, for Chang Haonan, who has completely streamlined the work process, most projects only need to be advanced step by step within the existing framework, and at most, some technical support will be given at critical moments. Just help. The big jobs are only the turbofan 10 and the die forging press. Considering that there are two baskets, the Seiko Project and the 973 Project, some research related to the turbofan 10 that is not easy to classify can be put into it. In fact, Turbofan 10 can be regarded as the first engine project in the history of China Aerospace Power that is separated from the specific aircraft model to a certain extent. ?Although its status is still as a supporting project for the J-10 and J-11 projects, at least it is no longer a one-to-one complete affiliation, and it has also received independent funding and R&D teams. More importantly, since Projects 10 and 11 are generally relatively stable, there will be no chance that the engines will suffer as a result of the aircraft model being aborted. Furthermore, after the Turbofan 10 is finalized, it may even be used as an opportunity to separate the aerospace research and development into a new independent company to completely solve the structural problems of aerospace power research and development. ?But thats all for later. In short, although the Turbofan 10 project has many technical obstacles, there is nothing to change in terms of organizational structure for the time being. The biggest trouble still comes from the die forging press. This project will to some extent involve a game between the interests of some departments. ? And unlike aviation engines or aircraft, there are already clear units responsible for research and development tasks. Everything has to start from scratch. ?Thinking of this, Chang Haonan raised his head and looked at Huai Guomo opposite: In terms of priority, the first thing I should do is to cooperate with Professor Yan Yongnian from Qinghua University to develop a heavy-duty die forging press of no less than 68,000 tons based on a semi-finished product solution in the 1980s. I have talked with Academician Shen Hongshen before and learned about some problems with the original design of Qinghua University. Considering our current technical strength and the international situation, we should be fully capable of making it. There are three main issues that Mr. Shen said before, one is the body structure, the other is vibration control, and the third is hydraulic oil. ?The first two are areas where Chang Haonan is good at, and where his planned multi-physics simulation modeling software can come into play. As for the third one... ?Chang Haonan really doesnt understand chemical engineering. Of course he can learn now with the help of the system, but it may be difficult for him to find time recently. At this time, the olive branch just extended by the British is very useful. ? British Petroleum (BP) has a brand called Castrol, which is as famous as Shell and Mobil in the field of industrial oils. ?In this kind of non-core technology, it doesnt hurt to rely on borrowingism first. ?Concerning this matter, the recommendation report written by Chang Haonan a few days ago has not been finalized and submitted, so apart from him, only a few people including Du Yishan, Shen Hong and Yan Yongnian know about it. ?However, Chang Haonan did not keep it secret during the inquiring process, so Huai Guomo must have heard some rumors and did not show too much surprise. On the other hand, heavy-duty die forging presses are indeed an indispensable part of many national key projects. If it cannot be produced domestically, then the manufacturing of many core components will have to be done abroad. ?Chang Haonan''s choice is also a timely help for the Science and Technology Commission, so there is no reason why he should not try his best to help. So, what do you need us to do for you? It was added today (End of this chapter) Chapter 348 Jiangcheng Heavy Machine Tool Factory Chapter 348 Jiangcheng Heavy Machine Tool Factory To be honest, Director, you really need some help from the organization. ?At the critical moment of the key project, Chang Haonan will naturally not be polite. "Manpower and funding are all necessary conditions, so I won''t mention them additionally. In addition, the first step is to assign the research and development and production tasks of the die forging press to a company, and it must be a reliable and combat-effective company. On the one hand, it is easier for enterprises to establish projects, and on the other hand, the equipment can be put into production quickly after completion. " That is, he dared to make requests in this way. On the one hand, it is the trust of the Science and Technology Commission in him, and on the other hand, Chang Haonan is confident in his efficiency in using funds and promoting projects. ?Sure enough, Huai Guomo just nodded, then took out his notebook and pen to record it. After that, he raised his head and said: "It''s okay to be affiliated with a research institute or company, but Xiao Chang, I have to explain to you that our Science and Technology Commission does not have much technical strength for machine tool research and development, and they are all scattered under various groups. Most of them can only handle small things such as machine tool application and maintenance, and may not be too familiar with heavy equipment such as die forging presses. "Among them, only the Ordnance Industry Corporation is relatively powerful. They have a Jiangcheng Heavy Machine Tool Factory, which was one of the 156 key projects aided by the Soviet Union. Up to now, it has produced about 5,000 units of various processing equipment. In the past, it also supplied I have exported a lot from friendly countries, so I have some basic knowledge..." Chang Haonan didnt know much about the situation in Hubei Province. Before his rebirth, he vaguely remembered that Jiangzhong had a pretty good market share in shipbuilding and wind power, so he naturally had no objections: "As long as you have relevant production experience, it will be fine. As for research and development, it will definitely be led by me and my comrades from Qinghua University. After all, this die forging press is not starting from scratch. What we have to do is mainly to conquer the last few key technologies. Problems and further optimization of the overall design, the rest is engineering. But Huai Guomos expression did not become relaxed: "Xiao Chang, don''t be too optimistic. Since 1993, due to changes in the market competition mechanism, Jiang Zhong has been losing money year after year. Now, the factory''s situation is quite serious. You may want to ask the weapons industry for the specific situation. , but last year alone, they lost nearly 20 million yuan, 20 million yuan..." Hearing this situation, Chang Haonan also scratched his head. The number of 20 million is actually not too much. Especially for him who comes from the aviation industry. After all, for the Ring Project mentioned just now, the advance payment for the first aircraft alone is US$350 million. If Factory 112 builds a J-8C fighter jet, even the allocation price will be close to this amount. But for a second-tier enterprise, this number is really quite a lot. After all, according to what Lu Yuying said before, 10 research institutes and manufacturing plants, including the 611 Research Institute and the 132 Factory, have raised a total of more than 40 million yuan in funding for the development of the J-7F model. ?Jiang Zhong lost half of his money in one year, which is really not a good sign. ?In addition, as a large enterprise that has experienced prosperous times, this kind of loss is not more important in terms of money. It means that there are problems within the factory. Heavy-duty die forging press, a powerful and important tool of the country, must not make any mistakes during the production and subsequent manufacturing process. So its definitely not just a matter of just finding a factory of sufficient scale and throwing it over. ?The most direct way to prevent China''s overall planning department for machinery manufacturing from being dismantled is to prove that "machinery manufacturing is a sunset industry" is a false proposition. ??Although there are some external factors for the abolition of the Ministry of Machinery Industry and the Ministry of Metallurgical Industry, if the industrial manufacturing industry can achieve trillions of revenue every year as it was more than 20 years later, this idea will not exist at all. ?However, this hole is really too big, and even if Chang Haonan was wrong, it would be impossible to fill it in a short time. You must know that before he was reborn, in the first quarter of 1996, all state-owned industrial enterprises were in a state of net losses after their profits and losses were offset. Just improving the efficiency of a few factories and enterprises cannot reverse this trend. So he could only settle for the next best thing and prove that "high-end machinery manufacturing is not a sunset industry." Considering the limited time, this heavy-duty die forging press is basically the only turnaround point. After thinking for a moment, Chang Haonan spoke again: Director Huai, I think I need to know more about Jiang Zhongs current situation in more detail. "That''s easy to say. I''ll ask the Ordnance Industry Corporation to submit a report as soon as possible. It shouldn''t take a few days." ?This kind of request was nothing to Huai Guomo, so he agreed immediately. But Chang Haonan shook his head: No, although I can grasp some basic information about Jiang Zhong by reading the report, it is still not intuitive enough. I was wondering if I could go to Jiangcheng in person to see the specific conditions inside the factory. Without investigation, there is no right to speak. This is a famous statement made by a great man. The most direct way to investigate is to see it with your own eyes. In fact, considering Jiang Zhongs current situation, Chang Haonan knew without asking that everyone from Jiangcheng City to Hubei Province, to the Ordnance Corporation and even the Commission of Science, Technology and Industry for National Defense had definitely been there to see it. But the goals of the leadership of these departments are too big, and every move is under the spotlight. I am afraid that as soon as the schedule is arranged, the factory will know in advance. ? In addition, people with scientific research or administrative backgrounds often lack the concept of industrial production, and the other party is well prepared, so it is even more difficult for them to understand the real situation. So after much deliberation, Chang Haonan himself was the most suitable candidate. Facing this request, Huai Guomo hesitated. Its not that he was afraid that Chang Haonan would see something. Mainly worried that he is too young and inexperienced. ? Huai Guomo himself has a technical background and understands the difference between a laboratory and a factory very well. Although Chang Haonan has spent a long time on the front line of production and scientific research in various factories, the aviation industry system is his hometown after all. He can have some relationship with Du Yishan in most of the management positions, and he also has a very strong military background. , the situation is relatively simple. Although Jiang Zhong was included under the Ordnance Industry Corporation, it was still in a transitional stage. The overall operation was still relatively independent, closer to the traditional appearance of an ordinary local state-owned enterprise. Now we are facing the impact of large-scale enterprise restructuring and layoffs. People''s mentality has changed and the situation is quite complex. ? Let alone a young man in his 20s with a technical background, even some veterans who have worked their way up from the grassroots level are relatively numb when facing this kind of situation. Prior to this, leaders at all levels have visited Jiangtong for inspection or on-site work no less than 30 times, but they still have not been able to fundamentally solve the problem. Furthermore, being fooled is a trivial matter, but being tricked is a big trouble. ?At present, within the Commission of Science, Technology and Industry for National Defense, Chang Haonan has been designated as one of the most critical personnel for the development of national defense technology, and there is absolutely no room for mistakes. About this, I need to report to Director Ding before I can make a decision. (End of this chapter) Chapter 349 We are also people who can sneak into security. Chapter 349: We are also the ones who can get into the security guard ?Chang Haonan understands the other partys concerns. But there is no better way at the moment. The matter of heavy-duty die forging presses must not be left to the Ministry of Machinery Industry. On the one hand, they are now in danger of crossing the river and cannot save themselves. ?On the other hand, after Shen Hong retired, Chang Haonan could not communicate directly with the other party''s leaders like he did in the Science and Technology Committee or the Science and Technology Committee. ?As long as the Commission of Science, Technology and Industry for National Defense takes the lead, he will not be missing from the main person in charge of the project. Compared with the marginal positions such as "consultant" and "technical director" before, Chang Haonan, who now has a serious degree, estimates that he will have to get a deputy chief engineer for the last time. Of course the power is great, but with it, the responsibility is also great. ??If this kind of obvious problem is not figured out in advance, the hole left will have to be filled by himself in the end. Sooner or later. So Chang Haonan had to find a way to make Huai Guomo relax: Director Huai, I know that in the current environment, the situation of state-owned enterprises like Jiang Zhong should be quite complicated. So when I go this time, I will mainly focus on investigating the situation. I will not interfere too much with their production and management work on site, and I will try to avoid contact with the local forces in Jiangcheng. In any case, the die forging press is a century-old project for the manufacturing industry. If I dont go and take a look at the company responsible for the manufacturing task, I still wont feel relieved. As a reborn person, Chang Haonan knows that no matter how bad Jiang Zhongs current situation is, at least more than 20 years later, it will still exist as a wholly-owned state-owned enterprise affiliated with the Ordnance Industry Group. It means that the situation is definitely not irreversible. ?Besides, his purpose is to ensure the smooth progress of the die forging press project, not to revitalize the entire Jiangzhong. So the burden is not that heavy. Hearing Chang Haonan''s additional explanation, Huai Guomo''s frown relaxed slightly. ?What he is most worried about is that the former oversimplifies the situation and is caught off guard. It seems that this should not happen now. "How about... I go there with you?" Chang Haonan quickly shook his head: Director Huai, the reason why I want to go there by myself is because I dont have any important administrative duties now, and my goal is relatively small. If you follow me, Im afraid that as soon as our itinerary is finalized, preparations have already been made over there... Huai Guo Mo also had a wry smile on his face. Because he knows it is true. "Anyway, going to Jiangzhong is different from going to the aviation industry. This matter must be reported to Director Ding first, but I will also convey to him what you just said." In order to enhance his persuasiveness, after returning home that day, Chang Haonan finished the proposal report on the die forging press project and handed it over to the Science and Industry Committee the next day. Because there is still a lack of understanding of many places, the final relevant technology and project development plans have not been completed. So it is not a rigorous project application. However, the previous content on the necessity and feasibility of the project has been completed long ago. In short, perhaps due to Huai Guomo''s tendency, or perhaps Chang Haonan''s report played a role, the Science and Industry Committee agreed to his plan to inspect the Jiangcheng Heavy Machine Tool Factory four days later. Its just that this time, the situation is a bit special. ?After signing the relevant documents needed along the way and handing them over to Chang Haonan, Ding Gaoheng picked up the receiver on his desk and made an internal call. Hello, office, Im Ding Gaoheng. Call the people I arranged this morning to come over, yes, my office. After ending the call, he pressed the receiver and thought for a while, then raised his head and looked at Chang Haonan who had just put away his things: "Xiao Chang, although you told Lao Huai before not to make too much noise, in the final analysis, you are going there on behalf of the Science and Technology Committee, and it is impossible to let you go alone because of circumstances and reasons. That would be too unfair. Thats right. So I have arranged a few accompanying staff for you. Two are chief staff members of the General Research Office of the general office to assist you with some administrative and liaison work, and... ?Halfway through speaking, there was a knock on the door behind Chang Haonan. Four people were standing outside the door. Come in. Ding Gaoheng introduced their identities to Chang Haonan in turn. The two people wearing only suits and shirts are the two chief clerks just mentioned. One is named Lin Baohua and the other is named Fan Wenkang. ?? Their actual role is to be Chang Haonan''s secretaries. However, after the organizational reform in the 1980s, this term is no longer used as an official title below a certain level of government agencies. Hello, Mr. Chang. On this trip, Chang Haonans official identity was the chief engineer of a key project of the Science and Technology Commission. Its not considered a lie. At most, it is equivalent to a loan in advance. ??The other two are worthy of being from the agency. Although the surprise in their eyes was about to pop out the moment they saw Chang Haonan when they first entered the door, there was no hesitation in their movements and expressions. Hello. The latter stood up and briefly shook hands with the two of them. Chang Haonan was a little surprised as to the other two who were still wearing coats. "These two are the security personnel I specially applied for. They are responsible for accompanying you to protect Xiao Chang''s personal safety." With his current official status, it is naturally impossible to arrange regular security personnel. ??Ding Ding Gaoheng still arranged two of them in a special way, which shows that he attaches great importance to this industry and Chang Haonan himself. In fact, it is reasonable. At the end of the 1990s, the overall public security situation in society could be said to be quite unstable. Before, he went to highly closed military-industrial enterprises and research institutes. He had his own defense force, so it didn''t matter whether he was around or not. But this time is different. Hello, Mr. Chang, my name is Hong Kun. One of them, who was stout and slightly taller, stood at attention first and saluted Chang Haonan. ?Hong Kuns appearance is more in line with the image of a security guard in public perception. With his size, Chang Haonan had no doubt that if something happened, the other party would be able to carry him on his shoulders and run away. The other person is relatively thinner, has a rather delicate complexion, and looks a bit gentle. Reporting to Mr. Chang, my name is Zhu Yadan. ?This sentence actually stunned Chang Haonan for a moment. Then I realized that the reason why this person looks like a white-faced scholar is because she is actually a woman... Its just that the whole persons hairstyle, appearance and dress are all very neutral, so Chang Haonan didnt think about it from the beginning. "this" ?Chang Haonan looked at Ding Gaoheng. Its not that he has any gender discrimination, its just that the configuration of four men and one woman seems inconvenient. Experience of the security department, in many cases, it would be more appropriate for a female comrade to take the lead. After all, you are not going to fight. To be honest, Chang Haonan still doesnt quite understand. But he knew that professional matters should be left to professionals, so he didn''t say much. It''s just a matter of arranging an extra room when you get there, it''s not a big problem. After arriving in Jiangcheng, except for Comrade Hong Kuns decision on matters related to security, everything else must be subject to Comrade Chang Haonans arrangements. Do you understand? Ding Gaoheng said seriously to the four people standing next to him. "clear!" "Well, Xiao Chang, United Airlines has been arranged for you. Your flight will be early tomorrow morning. You can stay directly at the Science and Technology Commission tonight, which will save you an extra trip. As for your personal belongings, Everything will be provided for you. "good." Chang Haonan didnt show any pretense and agreed directly. (End of this chapter) Chapter 350 Troubled old state-owned enterprises Chapter 350 Old state-owned enterprises in trouble Even though he is ready to conduct on-site research, he still needs to understand some situations before that. Otherwise, even if he knows some production-related technologies, he will definitely be blind when he goes there. As the subject of inspection, Jiangcheng Heavy Machine Tool Factory will naturally not leave Chang Haonan and his team alone, and will definitely send someone to accompany and introduce them. But if everyone just follows the other partys lead and takes a quick look at things, its not a survey, but a trip. So that night, Chang Haonan, who was staying in the guest house, asked Huai Guomo to get some relevant materials about Jiang Zhong. To his surprise, the information sent by the reference room was only a stack of less than thirty centimeters. Is that all? ?Chang Haonan received it in his hand, looked over it over and over, and then confirmed with the two data clerks. Although it is only since the 1990s, it seems to be too thin for a factory with several thousand people. Yes, all the files you want related to production and operations from 1991 to the present are here. ?One of the leaders nodded and handed him a folder and a pen, indicating that he had received the materials by signing on them. Chang Haonan, who wrote down his name, wanted to ask something more, but the other two were just ordinary clerks in charge of files, so they probably couldn''t answer the question. Fortunately, this problem did not bother him for too long. The date of creation will be clearly marked on the cover of the file. Most of them occurred during the extremely intensive period from the end of 1996 to the beginning of 1997. This is true including the earliest one in 1991. Obviously, this is because Jiang Chong is in the process of transforming from a local state-owned enterprise under Jiangcheng City into a subsidiary of the Ordnance Industry System, so only part of the files have been sent to the Science and Technology Commission for preservation, and more should still be in Jiangcheng local area. As to why this is the case ?Chang Haonan opened the first file on the top. Then, he was stunned. Holy shit, this balance sheet situation...is it serious? ?According to the information in the files, this Jiangcheng Heavy Machine Tool Factory is a complete hot potato for the Ordnance Industry Corporation! Due to successive years of losses, the factory''s total liabilities have even reached nearly 500 million yuan, while the company''s net assets are less than one-fifth of this figure! A huge hole of more than 400 million! You must know that after 1993, in principle, companies will no longer be rescued through direct fiscal allocations. Therefore, if Jiang Chong is really completely transferred to the Ordnance Industry Corporation, then the latter will have to bear this huge debt. . Even if the arms industry has been enjoying a relatively prosperous life relying on arms exports in recent years, it will never be able to fill such a big hole easily. ?Of course, this companys net assets do not include land. ?However, the real estate industry, especially in the central region, has not yet been speculated. The value of land use rights has developed from the concept of land use rights in 1995 to now, that is, renting out houses originally belonging to enterprises to open shopping malls and restaurants. Due to the environmental characteristics of large state-owned enterprises, even if these commercial places are opened, the main consumers are company employees. However, under the wave of layoffs, these people have little spending power, so even if they are included, the situation will not be much better at all. go. Because of this, the Ordnance Industry Corporation hesitated on this matter, and the ownership change was stuck. The result is that Jiang Zhongs name is already on the enterprise directory with the Science and Technology Commission, but in fact the other party has not actually been included in the management. In this chaotic era, it is not particularly outrageous. Its definitely not good news for Chang Haonan, who wants to hand over the heavy-duty die forging press to Jiang Zhong. ??When Chang Haonan closed the last file, which was from 1996, the bright moon was already hanging high outside the window. You dont really want me to save this company He rubbed his slightly swollen temples and couldn''t help but think of a certain TV series he had watched several times before he was reborn. People need to be self-aware. Chang Haonan knew that he was neither engaged in office struggles nor engaged in business operations, so he quickly put this idea out of his mind. You can only go over there and see. In this day and age, theres something to be said for being able to owe 500 million yuan ?Chang Haonan yawned and looked at the calendar next to him. July 6th. The day before the college entrance examination. Even though it was a little late, he thought for a moment and decided to call home. According to Chang Haonan''s own experience, it is impossible to go to bed so early the night before the college entrance examination. The person who answered the phone was indeed Chang Jiayao. ?Perhaps because of nervousness, her voice was a little different from usual. ??Although you have passed both the physical examination and the political examination, you still have to pass the key points in the cultural examination if you want to complete the admission. Judging from her previous mock exam scores, although they met the requirements, they were not particularly safe. During the phone call, Chang Jiayao told many stories about the brothers and sisters when they were young. To be honest, Chang Haonan could not remember most of the details clearly, but he still managed to chat for a while. Until Zhou Li''s voice sounded in the background, telling Chang Jiayao to rest. Even if you can''t sleep, you should lie down and don''t be too excited. Why is Jia Yao acting like an old lady today? She keeps talking to me about past things... Chang Haonan, who finally breathed a sigh of relief, complained to Zhou Li, who had just picked up the phone. It is not easy to recall things that happened more than forty years ago for him. The latter sighed softly: Hey... Xiaonan, do you still remember that when Jia Yao was in junior high school, she had a classmate named Lin Yanping? Uhdont remember. Just kidding, Chang Haonan can''t even remember his junior high school classmates. There is a girl who has a good relationship with Jiayao and often comes to our house to play. She is tall and very beautiful. When Zhou Li said this, Chang Haonan finally remembered something, but he couldn''t match the name with the person. It seems that I have some impression...whats wrong? He was a little worried that Zhou Li would introduce him to his girlfriend again. Its just that this time it was obvious that something had gone wrong. "Her family''s conditions are average. After graduating from junior high school, she did not continue to go to school. She went to work in our local brewery. As a result, she was laid off and lost her job last month. Because of her short working experience, she did not receive much subsidy. The girl couldn''t think about it the past two days. Just...he jumped into the river. Fortunately, a young man from your father''s workplace passed by when he was off work and rescued him..." It is indeed a tragedy. ?Chang Haonan had never heard of this matter in his previous life. ?However, similar situations are actually not uncommon in this era. It was one of the things in Zhou Li''s description that made him a little concerned. Mom, I remember that the profitability of that brewery seemed to be good, but why did it suddenly start to lay off workers? ?Chang Haonan said this because when he was on a business trip in Shengjing last year, he often saw this beer on display in stores. For a county-level brewery, it can definitely be considered a prosperous business if it can sell its products to provincial capitals. I dont know this ?Although gossip spreads quickly in a place like school, it is still relatively closed-off in nature. Whats more, as a teacher, Zhou Li doesnt care much about such things. If you really want to know, you can wait until Dad comes back from his training in the city bureau and ask him. He especially likes to drink the beer from that factory. Since his mother couldnt tell anything, Chang Haonan didnt continue to dwell on this matter: Okay, then mom, you should go to bed early. You have to accompany Jia Yao to take the exam tomorrow... (End of this chapter) Chapter 351 Investigate Jiangcheng! (4K) Chapter 351 Investigating Jiangcheng! (4K) ?Early in the morning the next day, Chang Haonan and his group of five people had breakfast in the canteen of the Committee of Science and Industry, and then took the bus to Nanyuan Airport as planned. In the late 1990s, there were basically no traffic jams after Beijing exited the Second Ring Road. However, Nanyuan was relatively remote and the road conditions were quite poor, so it still took a lot of time along the way. ?So taking advantage of this opportunity, Chang Haonan simply held a small meeting with the two chief staff members who were accompanying him. In fact, it can be seen that Ding Gaoheng put a lot of thought into the selection of his entourage. These two people are not of high rank, especially in a large organization like the Science and Technology Commission. Even after leaving their office, no one may notice that these two people are missing, which satisfies Chang Haonan''s desire to keep a low profile and A request for a surprise attack. But after all, they are still people from the ministries and commissions, and they are from the General Research Office of the General Office. In the past, they have done a lot of local research and inspections under the leadership. Although they have not taken on any important tasks, they have quite a lot of experience. If necessary, the newbie Chang Haonan can be given some experience. Lao Lin, Lao Fan. ?Chang Haonan turned around and motioned to the two people who were behind him to sit opposite him - ??The car they were riding in was a custom-made minibus. Although it looked ordinary on the outside and its mechanical quality was not very good, the interior had been modified and had a special place for face-to-face meetings and work. Two people quickly stepped forward. Mr. Chang, are you looking for us? Last night, the office director, their direct superiors, and the two directors of the System Engineering Department III and the Personnel and Education Department held a small meeting for them, repeatedly emphasizing this trip and Comrade Chang Haonan himself. importance. So even though they are almost twice as old as the latter, Lin Baohua and Fan Wenkang still dare not neglect them at all. Both of them were workers, peasants, and soldiers. They had no background in the agency, and their abilities and academic qualifications were not outstanding. If they continued to develop in this step-by-step manner, they would be retired as assistant researchers at most in their lives. Following Chang Haonan this time will largely determine whether there is room for them to continue to improve in the second half of their careers. In fact, this is one of the reasons for choosing them. Being from a rural area in the north, I have few interpersonal relationships either in Beijing or Jiangcheng, so it is relatively difficult for me to express my own position. Yes, I would like to hear about relevant work experience. ?Chang Haonan looked away from the information and looked at the two people in front of him. You must have participated in similar research trips in the past. In your opinion, what are the common problems faced by local state-owned enterprises like this? ?Lin Baohua and Fan Wenkang looked at each other. In the end, it was the former who spoke first: Mr. Chang, we used to be ordinary attachs who handled miscellaneous matters and were not responsible for summarizing the research results. As a person who is no younger than these two people, Chang Haonan naturally knows what the other person is thinking. It is just that it is currently impossible to judge which attitude he, as a team leader, towards state-owned enterprises is leaning towards, so it is difficult to speak. But it is impossible for him to really express his position first, otherwise he will only hear the exact same opinions as his own. ?So he decided to change his mind and told the story he heard from Zhou Li last night. The matter of a county brewery is obviously closer to life than an important enterprise like Jiang Zhong. It can also be considered as a way to bring the distance between the two parties closer. After finishing speaking, he added another sentence at the end: You are just not responsible for summarizing the written results, but after traveling to so many places, its impossible that you dont have any of your own ideas and judgments, right? ?Once these words have been spoken, it is no longer appropriate to remain silent. What''s more, Chang Haonan has already found steps for them in front. Mr. Chang, we have never been to a large enterprise like Jiangzhong before, but we still know a lot about the situation in small local factories at the county and town levels. Fan Wenkang tactfully explained the reason why the two did not express their stance at first, and then changed the subject: "Before 1993, the production and operation of these low-level local enterprises were still based on the directive indicators issued by the superior authorities. Some of them had flexible ideas and implemented a contract management responsibility system in the form of production organization to mobilize the enthusiasm of employees. But in the final analysis, it still operates under the planned economy and closed market system of the past. "After the transition in July 1992, the business logic of the company has changed. It has to operate independently, be responsible for its own profits and losses, and directly face the pressure of market competition. Mr. Chang, you are also from a science and engineering background, and your academic qualifications are much higher than ours. You must know the impact of industrial scale. The advantage is that it is impossible for these small factories that operate independently to compete with those large enterprises or foreign companies. " After saying this, he paused for a moment and glanced at Lin Baohua next to him. The latter understood immediately and continued to add: "In addition to what Comrade Wenkang just said, there is also the fact that the internal scale of these enterprises is too bloated. You just said that you thought the closed brewery was very profitable. In fact, seeing their products in the provincial capital only means that they are selling well. , the revenue is high, but the profit after deducting costs is really not certain. Two years ago, when we went to a company in Henan Province to investigate, it was not even a county or town, but a municipal-level collective enterprise. We found that there were more than 1,900 employees in the factory, and only about 700 people were directly involved in production. There are about 200 people responsible for handling necessary administrative affairs, and the remaining more than 1,000 people are in service positions that have nothing to do with production and operation, such as police stations, government canteens, supply and marketing cooperatives, children''s schools, nurseries, etc. TV stations, hospitals and even bathhouses. "Take the police station and the hospital, for example. There is one inside and outside the enterprise, only one mile apart. But one is only in charge of the hospital and the other is only in charge of the street. It is a complete duplication of construction, such as police, doctors and nurses. The personnel are okay, and duplication is just duplication, but one more department means one more administrative team, which is an unnecessary burden for the company and society..." There is also the management aspect, there are too many people to do things After the conversation started, the two of them gradually lost their initial worries and told Chang Haonan a lot about their past work knowledge and experiences. Some things he knew before he was reborn, and some things he didnt know. In general, although we are talking about small factories with a few hundred employees, companies of Jiang Zhong''s size must also face similar difficulties because they are small but big. I just dont know to what extent they have solved the problem so far. Its the familiar Boeing 737 again, and its the familiar business class. ?Several people arrived at Jiangcheng Tianhe Airport before noon that day. According to Chang Haonan''s request, he will make a time difference. ?Tonight, Jiang Chong will receive a notice saying that someone will go over to investigate the situation tomorrow. ?So the people who are now arranged to pick him up at the airport will naturally not be their people, but the Hubei Provincial Office of National Defense Science and Industry. Two original imported Pajero V33s. This actually surprised Chang Haonan. ??Although the Science and Technology Commission is a behemoth that manages the world and the local area, at the provincial and municipal levels, the presence of local science and industry offices is actually relatively weak. The main reason is that relatively well-known large-scale military industrial enterprises such as Shengfei and Rongfei are under vertical leadership. The local science and industry office cannot directly manage them. However, those local military factories that only have numerical numbers have gone bankrupt in recent years and have been transformed. The transformation and reform have long lost the glory of the past. Not to mention ordinary people, some grassroots workers dont even know about such an organization. So its not easy for them to find two such new cars... The person in charge of the reception was Qin Xueming, the deputy director of the Organizations Publicity Department. This is determined before departure. Director Qin, right? Hello. ?Chang Haonan shook hands with the person who was trotting over. In terms of rank, in fact, the five people on the former side are lower than Qin Xueming. But on the one hand, the standard of people who come from the capital is automatically raised by half a level to one level, which is considered an unwritten custom in various places. On the other hand, although Chang Haonan does not have an administrative position, it is obviously impossible for ordinary people to bother Ding Gaoheng to personally call the office of the director of the Science and Technology Office. ??Moreover, this man won the first May Fourth Medal just two months ago, and served as the chief engineer of a certain project at the age of less than thirty years old. Director Ding did not say what project it was on the phone, nor did he say whether it was a major project or a subsidiary project. But combined with the two, at least for people within the Science and Technology Commission system, it is not difficult to see that this person has a bright future. Mr. Chang, hello, hello. ??Qin Xueming stretched out his two hands to hold Chang Haonan''s hand: "Yesterday, I heard from our Director Fu that a young talent is coming to Jiangcheng for research today. Let us prepare in advance to cooperate with your work. Come on, Mr. Chang, get in the car first." Chang Haonan and two guards were in a car. Lin Baohua, Fan Wenkang and another staff member from the local Science and Industry Office shared a car. As he spoke, Qin Xueming opened the car door for Chang Haonan, and then turned around and got into the driver''s seat. Director Qin is the driver himself? Chang Haonan, who was sitting in the back, really didnt expect it. ?However, Qin Xueming, who was about to start the fire, seemed to have misunderstood, thinking that Chang Haonan thought the specifications were not formal enough. "Mr. Chang, there is nothing we can do. There are 35 people on staff in the Hubei Provincial Science and Industry Office. The director of our Organization and Propaganda Department was transferred last month and took the driver with him. Now the entire department is just our two deputy directors and There are three clerks, and I am the only one who can drive. Besides, this is also based on the requirements of the superiors, so as to narrow the scope of the informants as much as possible. " ?Chang Haonan quickly expressed his understanding and reassured the other party. The car started and slowly drove onto the main road leading to the city. Mr. Chang, its almost time for dinner. Do you want to go to our Hubei Province-style Grand Chinese Restaurant? ?Chang Haonan felt a little headache. He is not a person who is very good at rejecting others. So this kind of enthusiastic attitude was difficult for him to cope with. Its just that the head cannot be opened. On the one hand, Chang Haonan doesn''t have much confidence in his self-control. Today''s meal doesn''t matter, but if he goes all the way up, it''s hard to say whether he can refuse the sugar-coated bullets. On the other hand, the most outstanding thing about the trip to Jiangzhong is that it was a surprise attack. Even the Office of Science and Industry responsible for the reception only received the notice last night. Today is a critical stage to make up for the time difference. I must go there first. Ive already eaten on the plane, and Im not hungry yet. Lets go look around Jiang Zhong first. Fortunately, Qin Xueming didn''t bother, he just nodded and continued to concentrate on driving. ?From Tianhe Airport to No. 112 Zhongbei Road, where Jiangzhong Factory is located, you have to cross the Yangtze River in the middle. This should be considered the old town of Jiangcheng, right? Chang Haonan asked Qin Xueming as he looked at the historical buildings and the lively business atmosphere on the roadside. "That''s right, one of the three old towns. It has a history of more than a thousand years. The place where the first shot of Xinhai was fired is not far from here, about... five or six kilometers away. If Mr. Chang is interested, wait until the business is done. , I can take you to see it. The latter has just realized that this trip must be about work, so while getting closer to each other, he also emphasized that the important things should be done first. ?But of course that''s not what Chang Haonan was thinking about. Then the shops and buildings in this place are very valuable, arent they? He blurted out the question while thinking, and then he realized that the way the question was asked and the tone were a bit like the black-hearted imperial envoy in a costume TV series, so he quickly added: I mean, the business environment around the Jiangzhong factory seems to be pretty good. Fortunately, Qin Xueming didnt think in that direction. After all, the land here is indeed very expensive. Even if he packed up the Hubei Provincial Science and Technology Office and sold it, he couldnt afford it: "Of course, this is the west side of East Lake, the central city, Jiangcheng University, Hubei University, Qu Yuan Memorial Hall, and several large shopping malls are nearby. As for the specific price, I don''t know. The state prohibits us civil servants from doing business. " After a pause, he added: Neither my wife nor my children. A few minutes later, the Pajero turned a corner at a traffic light intersection. This is Zhongbei Road, Jiang Zhong is in front. ??Qin Xueming looked at the huge area in front of him and said. ?Chang Haonan lowered the side window glass and slightly stuck his head out to take a look outside. ?As soon as he walked by, it was obvious to him that he saw many restaurants, small commodity markets, flea markets and even a medium-sized comprehensive department store on the street fronting Jiangzhong. Can we have lunch here? He looked to Qin Xueming in front of him on the left. Here The latter was also stunned: Theres nothing wrong with it, its just that the environment is a bit According to popular opinion later, this place was a bit too down-to-earth. I think its pretty good, just eat whatever you want. ?Chang Haonan said it was okay. ?So the group of people parked the car a little further away, changed into casual clothes and walked back again. The hotel looks a bit rundown, but the decoration inside is pretty good. Especially a single room. Its not magnificent, but at least its not out of class. A meal for eight people cost 210 yuan. I didnt drink, Chang Haonan invited me. The main reason is that this hotel does not issue invoices, so Qin Xueming cannot reimburse... ?At this time, the latter''s salary is only a little over a thousand, so it''s not easy for someone to pay one-fifth of it for just one meal. Bosses, the price of this dish is quite affordable. When paying, Chang Haonan took out three one-hundred-yuan bills and handed them to the landlady, complimenting them casually. This is absolutely sincere. When you enter this kind of private room, you must not compare it to the standards of a home-cooked restaurant. 8 people ordered 6 dishes, all of which were hard, and cost over 200 yuan. ??Even in Shengjing, I dare not think about it, let alone the capital city. The rent is low. They are all old buildings in Jiangzhong Factory, so the rent is very cheap Subsequently, Chang Haonan asked a few other people to get back to the car first, and took only two guards to walk around a few shopping malls nearby. The situation is similar. The price levels are clear, there is a lot of customer flow, and no invoices are issued. The situation here seems to be somewhat different from what he expected yesterday. Even though it is located near a factory, its customers are not just company employees. Even if it is not as good as the same type of shops in the capital, it is by no means empty. (End of this chapter) Chapter 352 The Tricks of Jiangcheng Heavy Machinery Factory (4K) Chapter 352 The Tricks of Jiangcheng Heavy Machinery Factory (4K) That night, Chang Haonan and his party stayed in a guest house arranged by the Office of Science and Industry. There is no need to open an extra room. Because both Hong Kun and Zhu Yadan said they could live in one room because they would take turns to rest at night during the mission. ?Chang Haonan''s room is at the end, so anyone who wants to go must pass through the doorways of the other two rooms. He felt that this seemed a bit too sensitive, and not getting enough rest might affect tomorrow''s tasks during the day. ?However, Hong Kun said that they have been accustomed to this way of rest after training, and the security work is not the most careful but more careful. Considering that the person in charge of safety work arranged by Ding Gaoheng is Hong Kun, Chang Haonan is not prepared to say anything more on this matter. Everyone is doing it for his own good. Fortunately, one night passed and nothing happened. The next day, Chang Haonan officially went to Jiangcheng Heavy Machine Tool Factory with a group of eight people according to the original plan. The person who led the team to welcome him was naturally Jiang Zhongs deputy factory director, named Lin Xu. This year, the management model of state-owned enterprises has been changed to the factory director responsibility system. However, Jiang Zhong''s factory director resigned two years ago due to performance issues, and the candidate for the new factory director has not been formally documented, so he is considered Jiang Zhong''s. First in command. Director Lin, hello. Hello, Mr. Chang, we only received a notification at noon yesterday that a technical expert from the capital was coming to our factory for inspection. We were short of time and we really didnt provide good hospitality. ?Lin Xu walked up and shook hands, then expressed with an embarrassed look on his face, So the banners and slogans are, firstly, too late to prepare, and secondly, you may not know that our factorys current income and expenditure situation is not optimistic, and it is true that we do not have much spare funds. ?These words almost burned the CPU of Qin Xueming, who was following behind and was just a driver. He has been working in the system for 20 years and has never seen this kind of gameplay. In the past, when there were enterprises under the Science and Industry Office, he also went to inspect them. ?Those factory directors and secretaries, no matter how bad the company''s situation is, are eager to use their family funds to carry out face-saving projects. ??As a result, the first thing Lin Xu, the director of the factory, said when facing the researchers appointed by his superiors was "Our factory''s current income and expenditure situation is not optimistic"? Is there really such an honest person? Do you still want to get involved in the system? However, Chang Haonans reaction was very ordinary: "It doesn''t matter, I didn''t give any instructions originally, but there is a project at the Aviation Industry Port, which requires a super-heavy CNC vertical milling lathe of more than 15 meters. I heard that your factory is currently the only one in China. model, so come and take a look. In fact, on the plane to Jiangcheng yesterday, he also thought about whether he would encounter the local factory director who looked down on the technicians sent by his superiors and tried to fool him by substituting them, but he was exposed on the spot and pretended to be fake. In the end, under his guidance, he led the entire factory to turn losses into profits and take off. But after thinking about it again and again, I feel that it is unlikely. When he received the May 4th Medal before coming here, some of his deeds were made public. ?Although it is not as scary as the actual situation, it at least shows that he must have a science and engineering background. Secondly, after all, he has the title of chief engineer of a certain project, so no matter how young he is, he can still intimidate people. ?Of course, if such a factory suffers long-term losses, the other party must try to trick it somewhere. But it wont be such a blunt method. ?After meeting with Lin Xu today, I found that my guess was indeed good. ?The honesty shown by the other person is shocking. Anyway, since you are here, Mr. Chang, I will always take you to visit our Jiangzhong. Although there are some difficulties at the moment, we are also trying various ways to overcome them. ??Lin Xu said as he took Chang Haonan and his group to the door of the building closest to the factory entrance: Lets start from the factory history museum of our factory. ?Chang Haonan did not interrupt the route planned by Lin Xu. He wanted to see what the other party was planning to do. But the latter had no intention of delaying time. After fluently introducing Jiang Zhong''s history, he directly brought Chang Haonan and the others into the production area. Although Jiang Zhong''s name is "Jiangcheng Heavy Machine Tool Factory", his business scope is actually not limited to manufacturing machine tools, so the related equipment is extremely complicated. If he hadn''t stayed in Factory 112 and Factory 410 for a long time, even I also studied with Zhong Shihong, the technical director of Factory 410, for a period of time. I am afraid that when I really walked in, I would be dazzled. I think Chang always has a background in research. Have you ever been to a factory in a traditional industry like ours before? While in the changing area, Lin Xu asked seemingly unintentionally. Ive never been to one of this scale. ?Chang Haonan gave an unclear answer. This is the final assembly workshop of machine tools. After putting on work clothes and safety helmets, everyone came to the first workshop. To Chang Haonan''s surprise, there was no chaotic or even dilapidated scene like he had imagined. Although from the perspective of a reborn person, the layout of this workshop still has problems such as unclear classification of raw material areas and semi-finished products areas, serious crossover of logistics lines, too long material handling distances and duplicate routes, but it is a building built in the mid-1990s. For the factory, this is not something worth criticizing. The only problem is that the number of workers working here is a bit small, causing the entire workshop to be deserted. "The super heavy-duty CNC vertical milling lathe you want to buy, the corresponding model in our factory is CKX53160-1, 16-meter level. In the past, we have manufactured two units for the electric power departments of Guangxi Province and Hunan Province. We have one on hand that was abandoned by a customer after breach of contract. If you order the semi-finished products now, they can be delivered in the first half of next year at the earliest. Director Lin, the performance of your flagship product should be quite good. With such a high technical level, why cant the factory benefit from what you just said? Well...whats the point of having a high technical level? I always have my say and dont hide the situation from the organization. Speaking of this, Lin Xu sighed helplessly: Such flagship products like these are all produced by us, by gathering together some experienced master craftsmen, engaging in production contracting, assigning responsibilities to each person, and using a manual workshop model. Otherwise, they would all be semi-finished products. Does it take more than half a year to complete? "But this whole method is to put it bluntly, it is a production war. It is okay if the output is small, but there is no way to use it on mass-produced things. In addition, now that the old masters have retreated, there are still people who usually go out to take on private work. , the new young people are impatient and unwilling to learn skills, and even this kind of precision workshop is becoming less and less efficient. " "Mr. Chang, you also have a background in science and engineering. You know that modern industry pays attention to standardized production. If we work intensively like ours, the cost of each piece of equipment is much higher than imported ones, and the quality is almost the same as others. What you bought is It is difficult to import this type of machine tool, so there is still a market for it. Others that can be bought from abroad have no one come to us at all. Now this workshop is the most used place in our factory. " Have you ever thought about improving the management level through some methods? Its a pity to let such a large factory be abandoned like this. ?Chang Haonan turned into a speaker and answered the sentence just right. Of course I have thought about it. In fact, this has been my main job in the past few years as the factory director. ??Lin Xu said as he took Chang Haonan and others outside the workshop. There was a small room here filled with various propaganda posters. "We refer to the ISO9001 quality system introduced from abroad to strengthen the optimization of the company''s quality management model. We even specially invited experts from Japan to implement a comprehensive quality management system throughout the factory, so that every employee, not just the quality inspection department, can Participate in quality management work. In addition, it has also introduced the 6sigma theory, which is currently the most popular among large international companies, to use data in customer, process management and improvement to make objective evaluations, and to use standard deviation in mathematical statistics to achieve data as the basis..." Speaking for forty minutes in a row. It can be heard that Lin Xu is definitely not memorizing things from a script. He has his own understanding of management. In many places, he directly used examples or even data from his own factory or some internationally renowned companies. You must know that this is not the era of information explosion more than 20 years later. Some middle managers do not have any real information in their minds. As long as there is a search engine, they can be PPT gods of war. ?The things Lin Xu talked about are quite valuable in this era. So, Director Lin, now that you have introduced such a complete management system, what do you think is the main reason for our factorys loss? ?This sudden question made Lin Xu show some frustration: Its nothing more than the old problems of state-owned enterprises. "No matter how good the management method is, in the final analysis, it depends on people. State-owned enterprises have complicated relationships and overstaffed people. Young people want to get by with their iron rice bowls, and old people spend three days in the factory fishing and two days drying nets. I am more active than anyone else in taking on private work, but I have a lot of administrative staff, but my efficiency is not high. I have cleared out some shops along the street for rent, but I cannot rent them at a high price due to customer flow and policy issues..." ?Chang Haonan appeared to agree on the surface, but he had already half figured it out in his heart Even if Siemens is moved here today, the management methods cannot escape from the things posted on the wall. A few years ago, when the management system of state-owned enterprises was in chaos, there would be all kinds of constraints and strife, which would lead to constraints. But now under the factory director responsibility system, the factory director himself seems to know more about management and technology than anyone else, and in the end he actually... Such a result? ?At the same time, Chang Haonan also understood why Deputy Director Lin has been able to maintain his position despite consecutive years of losses. Because judging from the latter''s performance just now, any individual who comes here will feel that the factory''s losses are crimes other than war crimes. It might be even worse if the factory manager is replaced by someone who doesnt know his stuff. In fact, judging from the data, after the former factory director left, although he did not make the factory better, he at least managed to stop the decline. As for the reason Lin Xu just mentioned... ?Those words can convince many people. Because this was the direction of public opinion at the end of the 1990s. State-owned enterprises are the original sin. No one would dispute this. But this did not convince him. Because the problems mentioned by Lin Xu are actually common problems among large-scale enterprises. ?In her previous life, Chang Jiayao did not take the road of recruiting students. After graduation, she changed jobs in several well-known large factories. Chang Haonan can say with certainty that the above situations are not lacking. So, those are certainly problems, but they are certainly not the fundamental problems. Deputy Director Lin is indeed very capable. Faced with an inspection by someone who was very likely to understand technology, he resorted to the trick of focusing on business management issues, avoiding the important and taking the light. ??If another person came here and was deceived by him in such a series, he would definitely believe it. The next question is why Jiang Zhong''s balance sheet is what it was before. The debt of 500 million yuan cannot be faked, but even if it does not include real estate, Chang Haonan has seen the equipment in these workshops so far, and it is impossible to estimate that it is only tens of millions of yuan. ?Thinking of this, he pretended to be unintentional and asked: I heard that our factory seems to be transferred to the Ordnance Industry Corporation? ?Lin Xu was stunned for a moment, then shook his head: There was such a talk at the end of last year, but after our factory submitted the balance sheet, there was no follow-up. I guess it was because we were frightened by our debt of more than 500 million yuan..." 500 million in debt? Chang Haonan pretended to be surprised: Im from an aviation background and dont know much about mechanics, but with these factories and equipment, Im afraid I can offset quite a bit of it. Is it so difficult to get rid of it? You dont know something. ?Lin Xu brought Chang Haonan to a row of equipment covered with raincloths: "Many of the equipment in the factory were imported from places like East Germany, Romania, and Czechoslovakia. After 1991, many of the manufacturers even disappeared, and maintenance and guarantees were not in place. In addition, as mentioned just now, state-owned enterprises have no employees at all. I dont know how to take good care of equipment. When I first came to take office, I didnt even look at the workshop. I spent several months making great efforts to rectify it and stopped many operations that were simply destroying the equipment. Then these scrapped equipment are just left there? Chang Haonan opened a corner of the raincloth and found that it was indeed a machine tool. Judging from the nameplate, it was an SC2000 vertical lathe produced in Romania. Theres no way. Its easy to report equipment as damaged, but the procedures for scrapping it are very troublesome. Besides, even if these things are worthless, they can still cost over 100,000 yuan when calculating assets and liabilities. Its better than nothing. ??While Lin Xu was answering, he looked at several other devices. AKODAW250G CNC floor-standing boring and milling machine produced in Czechoslovakia. ZSTZ-10H gear grinding machine from East Germany. SI50 internal cylindrical grinding machine from East Germany. ??It is true that as Lin Xu said, they are all quite old equipment. Even though machine tools have a relatively long service life, these models are really not worth the price, not to mention they are broken. Until he saw a very familiar device ?The soft abrasive polishing machine designed by Chang Haonan himself. Is this one broken too? ?He asked, pointing to the device. "Yes, I just purchased it at the end of last year. As a result, last month, there were problems with over-grinding and insufficient abrasive passing rate. The manufacturer came to inspect it many times, but it was never completely repaired, so they took the blame. Pushed to our technical staff, we are currently arguing with them. Hearing this answer, Chang Haonan didn''t know what expression he should put on for a while. He knows a lot about the equipment he built himself. ? This problem has occurred within a few months. The only possibility is that during the initialization process of the PLC program, abrasives that do not correspond to the corresponding label are used for forced calibration. It is also simple to repair. Just replace a set of nozzles and at most a set of valves. It is absolutely impossible for the repair to fail. ?Chang Haonan raised his head and looked around at the dozens of machine tools and equipment around him. This is the case for a workshop. In the entire factory area, there must be at least two to three hundred pieces of equipment that are classified as damaged or scrapped. He suddenly understood. (End of this chapter) Chapter 354 production demonstration Chapter 354 Production Demonstration ?After driving for a while, Chang Haonan signaled Qin Xueming to stop on the side of the road. Hong Kun, get off the car now and go to Jiang Zhongs family area to squat for a while to see how Deputy Factory Director Lin plans to mobilize the workers to work. In 1997, the penetration rate of wired telephones nationwide was less than 10 per 100 people. This still has to include the number used by institutions and businesses. ??In a factory like Jiang Chong''s, only a very small number of workers'' homes can install telephones, so if you really want to notify someone of something, you can only use the most traditional method. ?Either shouting through a loudspeaker or knocking on doors from door to door. But, if Xiao Zhu is the only one ?Hong Kun was obviously worried about his job as a security guard. "It doesn''t matter. You don''t have to wait there for too long. The workers have rested early. If Lin Xu really goes to the family area to mobilize, it won''t be too late. You just have to come back before midnight. This is the travel fee. You can take a taxi." ?Chang Haonan took out two pieces of money and handed them to the other party. Normally, taking a taxi in the middle of the night in this day and age would be a challenge for both drivers and passengers. ?However, there is obviously no need to worry about Hong Kuns safety. ?Before boarding the plane at Nanyuan Airport, Chang Haonan noticed that the two of them brought quite complicated procedures and handed something to the crew members for safekeeping. ??Although I didnt ask in detail, it was obvious that he was armed. Guaranteed to complete the task! Early the next morning, Chang Haonan arrived at the Jiangzhong factory about half an hour earlier than the time agreed last night. It is certain that Lin Xu will find a way to interfere with it, but this does not mean that todays production demonstration is meaningless. ??This trip for investigation was very urgent, and even the request to visit the production process was only made by Chang Haonan on the spur of the moment yesterday afternoon. ?In such a short period of time, it was quite difficult for Lin Xu to gather a team of people. It was impossible to have time to arrange any too detailed means, and the habits formed by people over a long period of time are not so easy to change. So we can still see a lot of things. Mr. Chang, its so early. ??When the two cars of Chang Haonan and his team stopped at the entrance of the production area, Lin Xu, neatly dressed in work clothes, was already waiting here. Obviously, he arrived earlier. Where is it? Director Lin, wasnt it earlier? ?Chang Haonan enthusiastically began to chat with the other party. "Hey, Mr. Chang doesn''t know something. For many processes in our Jiangzhong, especially the thermal processing process, the production cannot be completely stopped, otherwise it will take a long time to restart, so the speed will always be low. Produce some products with high versatility. ?While Lin Xu was promoting production-related common sense to Chang Haonan, he motioned for the latter to follow him: "But since what you want, Mr. Chang, is heavy machine tool equipment, today''s production demonstration must not fool you with bulk goods. You have to switch to some difficult products. This process will take almost half a day. I can''t let you do it here." It was running out, so I mobilized a group of veteran workers to start work in advance. By now, we should be able to start production soon. " Is that so? I really didnt know this before. Chang Haonan, who had already made up his mind to watch the other party''s performance, showed an expression of sudden realization. Well, then you should have told me when I made the request yesterday. If the objective conditions limit it, it is perfectly fine to postpone it even for one more day. Lin Xu, who was walking next to him, thought to himself that he should not postpone it for another day. He had a long night and many dreams, but on the surface he still looked diligent and hardworking. He shook his head and said helplessly: Sigh... The whole factory is just waiting for your order to be made. Yesterday I went to the family area to inform them that a leader came to the door with a business for advance payment. Many people rushed to come to work..." ?Looking at Lin Xus acting skills that could win an Oscar, Chang Haonan secretly sighed. ??If he hadn''t sent someone to squat in Jiang Zhong''s family area for several hours last night, he might have believed it. Hong Kun returned to the guest house at about 11:30 p.m. and reported to Chang Haonan that he had waited until most people turned off their lights and did not see anyone announcing anything on a large scale. I did see a few people who followed Lin Xu during the day to look for people in certain buildings, but most of them only stayed for a few minutes and then left. Only two people stayed for a particularly long time. In a three-shift factory, a production team must have at least 100 people. Even one-on-one precise door-to-door visits cannot be so fast. It would be nice if someone rushes to come. Chang Haonan nodded: This shows that workers are still motivated to produce. Its just that the efficiency was too low before and they couldnt see any money, so they naturally worked hard all day long. Lin Xu''s face changed slightly when he heard this, and after regaining his composure, he quickly added: "It would be great if all orders were like yours, with 60% advance payment and cash visible to others. Unfortunately, most customers, let alone advance payment, wish they had to pay for their goods in arrears for several months. It was only given slowly and sometimes even in installments..." While talking, the group of people had already walked into the workshop located in a corner that they had not visited yesterday. This is the starting point of our production process, the casting area, and it is also one of the places that most masters need to keep an eye on. The casting area is divided into a production support room, a production management room, a melting workshop, a molding workshop, a sand core workshop, and a cleaning room. workshop" Excluding his character, Lin Xus abilities are indeed good. Twenty years later, he will definitely be a top product manager. ?Production-related knowledge is readily available, and you can also evade important issues in places that are less likely to be noticed. ?Those who understand technology and management should not be too relaxed if they want to be fooled by a quasi-expert who even knows some relevant knowledge. Chang Haonan is almost certain that after completing this set of processes today, the pass rate of the final product will be quite ugly. When everyone entered the workshop, the molten iron produced by the cupola was already stored in the power frequency furnace. Can this kind of molten iron be sent directly for casting? Another half-understood question that can be asked with a half-full bottle of water. No, some alloy materials need to be added to adjust the composition of the molten iron. ?Lin Xu shook his head and replied. ?Chang Haonan''s performance just now was completely in line with his expectations. I knew some relevant basic knowledge before coming here, but I didnt know the more detailed production process. There is nothing much to say about the high-frequency furnace. Even a newcomer who has just joined the factory can understand it as long as he follows the operation manual. Lets go and look at the later parts. As soon as he finished speaking, a man ran over from the workshop next door. There is something wrong with the core shooting machine, and we have asked the maintenance team to eliminate it. The power frequency furnace must maintain power and must not let the temperature drop! ?Lin Xus face darkened slightly. Mr. Chang can rest assured that core shooting machine failures are generally minor accidents, and the lost working time is only 30-40 minutes at most. The maintenance team arranged today is the most experienced, and it should be eliminated faster. As a visitor, Chang Haonan showed no emotion and just motioned to Lin Xu to lead the way. Lets go and have a look. In the sand core workshop, a group of obviously older workers were gathered around a piece of equipment. Whats going on? Why did it fail at the most critical time? "The little kid who was on duty a few days ago hadn''t inspected the equipment for who knows how long. One bearing got stuck. Fortunately, he discovered the problem in time and stopped the equipment. No more serious consequences occurred. All he had to do was clean it and re-oil it. " One of them turned around and reported. ?As Lin Xu said just now, it was not a big accident. Production restarted after 25 minutes. It seems that the craftsmanship of the old masters is still trustworthy. Chang Haonan looked back at the sandblasting machine and said to Lin Xu, who was taking him to leave. "These are the backbones who have worked in the factory for more than ten or twenty years and are most affectionate to the factory. They are also in the prime of life. But... alas... it is not an option to continue like this. I can''t stand here every day. Watching them in the workshop, there are so many processes, and I cant be alone. The words were full of helplessness. It seems that Director Lin was right when he said yesterday that management methods alone will not work. In the end, the problem still lies with people. After Chang Haonan said this sentence, which seemed to agree with the other party''s words, he added the second half of the sentence in his heart: Its just you, the factory director, who has the problem. ??In the 25-minute troubleshooting just now, although the operation seemed to be smooth and smooth, Chang Haonan still saw many unreasonable operations. For example, pre-repair work is not fully covered. The problem of insufficient bearing cleaning should be discovered in advance before starting work. Another example is the simple oiling at the end. The maintenance worker just hastily injects new oil into the oil can and finishes it after reaching the liquid level. However, at the 410 factory, the standard operating procedure is to completely squeeze out the old oil with new oil, so as to avoid the impact of contaminated old oil on the equipment. In addition, in this workshop, the working conditions of the belt conveyor used to transport sand are also quite poor, and its rotating mechanism and driving mechanism are almost half buried in waste sand. ??It can only be said that I was lucky that I didnt call the police today. (End of this chapter) Chapter 355 a big show Chapter 355 A big drama It was already the afternoon when the entire foundry production area stumbled through the entire production process and brought 15 finished castings to the final inspection workshop. ?This production efficiency really makes people frown when they see it. And after inspection, it was found that 6 of the 15 finished products did not meet the production requirements. With a yield rate of 60%, it is also a heavyweight. Some cases have excessive shrinkage and porosity in castings, some have excessive thermal deformation, and some simply have insufficient sand cleaning. The situation is exactly the same as what Lin Xu said yesterday. It can be made, but it is entirely based on the manual workshop model. There are indeed many problems. Even if factors that deliberately hinder production are excluded, some workers, even older workers, display poor habits. There are also some problems that Lin Xu attributes to "system rigidity", which are actually technical defects. For example, temperature condition control during the casting process. If you want to do this kind of thing based solely on human experience, it is completely foreseeable that the yield rate will be low. Furthermore, because many new equipment are classified as "end-of-life", we have to temporarily use old or even non-standard equipment to recharge, which also greatly affects production efficiency. In short, Chang Haonan already has a rough idea. Beside him, Lin Xu looked at the 15 workpieces lined up in front of him. Although he had a solemn expression on his face, he was overjoyed in his heart. With such a performance, not only will this business definitely fail, but after Chang Haonan returns to report, I am afraid that the Ordnance Industry Corporation will completely give up its attempt to take over this company. As for himself. As long as the ownership of the factory remains with Jiangcheng, he can secure his position in Diaoyutai. Actually, Chang Haonan wanted to see what kind of wonderful performance Lin Xu would have if he still insisted on placing an order under such circumstances. ?But that would be a bit too fake. Director Lin, its really not my fault, but our production level... ?Chang Haonan looked very embarrassed. "After all...it can still be made." ? Lin Xu still looked nervous on the surface, as if he was afraid of losing this big business. "And Mr. Chang, that is, I, Lao Lin, am an honest person and don''t like to play tricks. If you go to other companies and take a look, no matter how glamorous they tell you on the surface, if it is really implemented in the production process, then The performance is not as good as our factory. At this point, he paused and put on a rather sad expression: To be honest, if the factory cant be dismantled, it wont even be able to pay the bank interest. At that time, it will have to be liquidated as non-performing assets in accordance with the citys requirements... "Clean it up... I remember Director Lin, you said yesterday that there is nothing going on in the weapons industry, isn''t it?" Already having an idea of ??how to solve the problem, he continued to cooperate with the other party''s performance. Hey...the weapons industry is still an old state-owned enterprise. In addition to its large scale, it cant be any better than us in management. They must not be sure of such a big business. ?At this point, Lin Xu finally relaxed and started talking to Chang Haonan about things that had nothing to do with production. "But if no other state-owned enterprise is willing to take over us by the end of this year, according to regulations, we can carry out transformation and reform for the whole society. If the higher authorities can allocate part of the money to subsidize us, I guess there will still be some enterprising bosses willing to take over. Give it a try. Private enterprises are relatively dynamic, and they feel that they might be able to revitalize them if they get it into their own hands ?Chang Haonan realized that he was still too naive and lacked a comprehensive understanding of the people represented by Lin Xu. What he had been thinking before was that such a seemingly insolvent enterprise might be sold off at a price far below its actual value. ??As a result, not only did they not even think about providing any money from the beginning, they even had to make another fortune from it! ?The reason is pretty good Your company is already insolvent. Even if I take it over with Zero Yuan Gou, I will still owe money to the bank. How can I be willing to do this if you dont add some benefits? Its really interconnected... Chang Haonan looked at Lin Xu who was spitting next to him and seemed to want to "persuade" himself to place an order. He had already greeted this person''s eight generations of ancestors in his heart. Director Lin, I have also seen the difficulties in your factory, but we also have relevant regulations on equipment procurement. I cannot have the final say alone. ?He interrupted the other person''s eloquence: "Well, after I go back, I will discuss it with my superiors and see if I can give you a special deal and make the contract delivery period and price more relaxed. How about that?" Generally speaking, this kind of thing is said. Once you come out, there is basically no business to discuss. Then its best. If we can take down this equipment, we can hold on for a while longer to delay the change... Lin Xu, who had been pretending for a long time, finally showed a smile, "Then for lunch, let''s..." For Chang Haonan, he has seen everything he wants to see, and he is no longer willing to continue acting with Lin Xu: Mr. Lin entertained us very well last night. Besides, our schedule is very urgent and we have to go back in the afternoon, so lunch is not necessary. However, just when Chang Haonan and his group had just left the workshop and were about to go to the parking lot, a group of people suddenly rushed out from the side. Probably dozens. All of them are women. ? Judging from his age and appearance, he should be a factory employee. Or the employees family members. ?At this time, Zhu Yadans role comes into play. She stood up directly and blocked several people who wanted to pounce on Chang Haonan, allowing the latter to retreat under Hong Kun''s protection. ??Lin Xu, who did not receive such treatment, was instantly surrounded by the crowd. Needless to say, the purpose was written on the wooden boards in their hands. Ask for money. ?According to what Lin Xu said yesterday, Jiang Chong had already stopped paying wages a few years ago. After he took office, he reluctantly resumed paying 25% of the basic salary as a living allowance. But as the factory continued to lose money, it became increasingly difficult to make money. Factory Director, I heard about the business early this morning. Can we pay the wages owed to us this year? "Director, we are all skilled. Even if we leave the factory, we will not die of hunger. If the factory is really hopeless, then don''t drag it here, just buy out our working years, so that our family can stop thinking about it. Director Director Fortunately, the main target of these people is not Chang Haonan. Lin Xu spent nearly an hour trying to get rid of the debt collectors with the excuse that the order had not yet been signed and the promise of another 25% living subsidy at the end of this month. Make Mr. Chang laugh. ? Lin Xu, who finally solved the crisis, readjusted his clothes a little embarrassedly. Didnt Jiang Zhong initiate the layoff process for workers? ?Chang Haonan couldn''t tell for a while whether this was self-directed or acted, or whether it was just a coincidence. It has started, and the first two batches have been completed, with a total of more than 600 people. ?Lin Xu wiped the sweat from his face and explained, But buying out seniority also costs money. Our factory has thousands of people, and according to the plan, more than half of them have to be laid off. The total compensation is tens of millions, and we definitely cant afford it on our own..." Obviously, he is further thinking of ways to lower the expected valuation of the factory. Because this means that in addition to the more than 400 million hole on the balance sheet, the factory actually has a large amount of "hidden liabilities". Anyone who wants to take over has to reconsider the financial and personnel risks. ?Chang Haonan glanced meaningfully at the leaving crowd in the distance, and shook hands with Lin Xu. Director Lin, I believe there will be a solution. The latter only thought that these words were comforting him, so he nodded: Yes, there will definitely be. (End of this chapter) Chapter 356 Comrade Xiao Chang’s management skills Chapter 356 Comrade Xiao Changs management skills Chang Haonan and his party did not have much luggage, so after leaving Jiang Zhong, they went directly to the airport without even returning to the guest house, and returned to the capital that evening. ? Early the next morning, Chang Haonan, who had written out a research report of tens of thousands of words (a typed version of course) overnight, came to the office of Ding Gaoheng of the Commission of Science, Technology and Industry for National Defense again with sleepy eyes. Xiao Chang, how was your experience in Jiangcheng this time? Ding Gaoheng, who had just started work at this time, asked while sorting out the documents that were delivered to his desk in the morning. To tell you the truth, Director Ding, they have put on a great show for me in the past three days! ?Chang Haonan said, taking out the rather thick report from his bag and handing it over. A big show? Hearing this statement, Ding Gaoheng was stunned for a moment, then put down the red and blue pencil he just picked up, took the report and started reading it. The situation over there is not optimistic? To a certain extent, it can be said to be shocking, but for our Science and Technology Commission, it may not be entirely a bad thing. Chang Haonan said as he took the kettle from the side, filled Ding Gaoheng''s thermos with water, and then poured himself another cup. The temperature of the water inside is just right. ?With a position like Ding Gaoheng''s, there will be dedicated people responsible for handling these daily chores before going to work, so Chang Haonan also took advantage of it. The former was still scanning ten lines at a time, but when it turned to the third page, its scanning began to slow down significantly. Equipment that could still be used is scrapped, lowering production efficiency, renting out high-premium land in the city center at low prices, deliberately lowering the amount of assets, and exaggerating the insolvency situation..." The expression on Ding Gaoheng''s face gradually became serious. What a good method... In this way, after a while, you can get the high-quality assets that originally belonged to the country without paying a penny..." He put down the report that he had read more than half of, and leaned back on the back of his seat: I have heard fragmentary statements from the Ministry of Finance in the past, but this is the first time I have seen such a complete and systematic report on the situation. ? As the head of the Commission of Science, Technology and Industry for National Defense with a technical background, Ding Gaoheng is far less sensitive to this type of issues than veterans who have spent their entire careers working in agencies. ?Of course, the more important thing is that one should not seek political advice if one is not in his position. ?Although the Science, Technology and Industry Committee also manages some companies, it is actually only the leader at the business level, and there are only five companies in total at the moment. Aviation Industry Corporation, Shipbuilding Industry Corporation, Ordnance Industry Corporation, Nuclear Industry Corporation and Aerospace Industry Corporation. As you can tell from the name, it is impossible to face the problem of overall ownership change. During the self-reliance stage of the military industry system for more than ten years, some factories did do a good job in converting the military into civilians. Now due to policy reasons, it is necessary to carry out the restructuring of factories into enterprises. However, the nature of the enterprise has not changed. So there is really no need for Ding Gaoheng to put too much energy into things that have nothing to do with his main business. Actually, to say it is complete, it is not very complete. ?Chang Haonan shook his head sincerely, "These operations are only what I can see on the surface, but Lin Xu, the factory director alone, may not be able to hide the truth easily. Moreover, I have read the files before going to Jiangcheng. The balance sheet cannot be made by one company alone." What I took out must have some financial operations in it. This is something I dont understand at all. If we want Ordnance Industry Corporation to take over Jiang Chong completely and without any further trouble, we have to do something more comprehensive. Just be prepared. You can rest assured about this. I still know some about the art of war. Hearing Chang Haonan''s clear answer, Ding Gaoheng''s expression softened slightly: "The Lin Xu you mentioned, although I don''t know why, he is still just the deputy director after all. When the time comes, let the weapons industry make a surprise attack to guard the entire factory and prevent them from further trouble. Just destroy the opportunity, anyway, the initiative is with us. " "But the bigger problem is not this, but you mentioned at the end of the report that Jiang Zhong''s own problems exist objectively. Coupled with the destructive effect caused by Lin Xu and his group in terms of material and organization, this Can the factory now take on the task of being a main engine plant for die forging presses that Qi mentioned before? " In fact, this was the original purpose of Chang Haonan''s trip to Jiangcheng. The complexity of the heavy-duty die forging press far exceeds that of Jiang Zhong, and even surpasses all similar products produced by Huaxia in the past. It cannot be completed by just one factory. ??But just like complex industrial products such as aircraft carriers or large aircraft, various subsystems need to be brought together, and then the main engine factory responsible for the overall project is finally completed. This places high demands on the latters technical, organizational and management capabilities. If Jiang Zhong can be completely transformed, then I think it is still possible. Chang Haonan placed the half-drunk cup on the coffee table. After calming down, he began to talk about what he had thought about in the past few days: "At the organizational and technical level, our military industry front still has many comrades who can uphold the revolutionary spirit of ''Three Laos and Four Stricts''. We can mobilize some people from the past who understand technology to serve as the backbone, and eliminate the bad deeds of the original factory management as soon as possible." The other impact is to screen workers, keep those with real talents, and clean out those who are just messing around, or those who are self-righteous and self-righteous. " "On the management level, Deputy Factory Director Lin is actually quite capable. The management methods he formulated are very advanced. If they can be promoted, they should be effective very quickly. However, this person has a wrong mind and uses his abilities to his advantage. There are evil ways, so we just need to make some changes on the basis of strictly implementing the original regulations. " I have listed the most urgent items in the form of an appendix at the end of the report. If necessary, I can write them in more detail later. Hearing what he said, Ding Gaoheng immediately picked up the report again and turned to the end. Chang Haonan also followed the trend and continued: "The core thing here is, first of all, the concreteness and standardization of performance appraisal. Although Jiang Zhong also had performance-related regulations in the past, I took a look at it and found that the content was very unspecific. The execution is entirely up to the superior supervisor. People have the final say. In this case, it is much more useful to have a good relationship with the superiors than to work down-to-earth. It will produce side effects. We cannot do this. We need to quantify indicators, cross-examination, and finally add a verification process. , the assessment process and results are all archived, and the trump card of performance is truly used. "Second, in terms of equipment management, I think this should be promoted as a lesson. We need to establish a single person responsible for equipment management and a file management system. The equipment group should be separated from the engineering department. The responsibilities and powers should be clearly defined for each person. Equipment operation , repairs, and maintenance must be filed and saved. If something goes wrong and the specific person responsible cannot be found in the file, the relevant personnel of the equipment team will be responsible. Third, in terms of quality management, implement the production and maintenance system for all employees, set up morning meetings in the workshop, report personnel attendance status, review and summarize yesterdays production abnormalities, report the production plan for the day, and inform the production plan for the next day 5S management Quality control cycle model Workshop layout and material flow planning The summary lasted for half an hour. For people who have experienced management in the 2020s, as long as they have some work experience, they can talk about it. For those who have been trained on the front line and have upgraded their system management capabilities to It''s no problem for Chang Haonan of LV2. ?Of course, this is also thanks to Chang Jiayao in the original timeline. ??If she hadn''t worked in many large factories, became familiar with various ways of fooling the grassroots and middle-level management, and introduced it to Chang Haonan, the latter might not have been able to take special precautions. ? Ding Gaoheng was just listening at first, but later he picked up the red and blue pencils and started taking notes in the blank space next to the report. I can only say that Chang Haonan always comes up with new tricks for him. ?It now seems that in addition to his extraordinary talents in scientific research, he also has a promising future in terms of management capabilities. ?This reminded Ding Gaoheng of his previous conversation with Wang Yuzhong at the State Economic and Trade Commission. Facing the other partys bargaining at that time, he really didnt have much confidence in his heart, so he accepted the plan of setting up a project team first, and then setting up a company to be affiliated with the Academy of Sciences after it was effective ??The key is not to wait for more than half a year, but that the company that is still unknown has not been placed under the name of the Science and Technology Commission. This made Ding Gaoheng very sad. ?Of course its no one elses fault. Painting a cake is painting a cake. He didn''t really expect the company to become bigger and stronger before. He just thought that if he could maintain and continue to operate the simulation software that Chang Haonan tinkered with, he would not lose money no matter what, so he decided on a sudden thought. Not taking it seriously. The result is that I regret it now. If he had known that Chang Haonan still had the ability in this area, he should have been tougher at that time. Ding Gaoheng slammed the red and blue pencils on the table and thought in his heart. (End of this chapter) Chapter 358 Chief Scientist of State Key Laboratory Chapter 358 Chief Scientist of State Key Laboratory Dont worry, there is another thing. Remember to pay attention to it after you return to school. Ding Gaoheng looked at Chang Haonan, whose face was full of excitement. He raised his hand and pressed it down, indicating that he hadn''t finished speaking yet. If you are sure that this laboratory will remain in the school and will not be taken out to the company, then remember to contact the Science and Technology Commission after the funds are available in a few days. "In recent years, they have invested a lot of money in the field of applied basic research and engineering, and have established the second batch of national key laboratories. You can apply for it. With the amount of funding you currently receive, and the hardware that your school has just updated, I think the facilities should be approved. Of course, there will definitely be related desk work, but the school can find someone to do it for them. As the director of the Science and Technology Commission, Ding Gaoheng naturally hopes to keep Chang Haonan and his abilities within his own system. But as a scientist who came out of the two-bomb and one-star project and the son-in-law of a military industry marshal, ideas are just ideas, and the pattern of doing things is not that low. More importantly, no matter what method is used, as long as Chang Haonan can be supported to make the pie of scientific research bigger, no matter how he goes around in the end, he will definitely benefit the most. Just like according to the original plan, the leadership of the Science and Technology Commission will be changed at the beginning of this year. As a result, this matter was postponed indefinitely because of a series of big news made by Chang Haonan. As a result, a new department must be established in the People''s Liberation Army system to solve the personnel problems derived from it. ?? Minister Cao Gangchun, who is newly appointed to the General Armament Department, would joke with Ding Gaoheng every time he saw him. He also expressed many times that he wanted to meet this young man who had promoted him to a level ahead of schedule. As for the projects, funds and jurisdiction newly assigned to the Science and Technology Commission directly or indirectly due to Chang Haonan in the past year, not to mention The reason why the actual status of various departments that are nominally in parallel status is very different is because they have different powers. Therefore, since the National Science and Technology Commission now has better resources, Ding Gaoheng will not hide them. The country is important ?Chang Haonans hand movements paused slightly. Okay, Director Ding, I will take care of this matter as soon as I get back. ??This year is no different than twenty years later. In addition to being more free, corporate laboratories have no advantages at all in terms of policies, so he never thought from the beginning that the laboratory would be independent in the future. ????????????????????????????????????????????????????????????????????????????????????????????????????? ?This type of gameplay is not very popular at the moment, but in a few years it will gain policy tendencies, and then you can get a lot of funds by just calling it out. Let alone a brand with full buffs like the State Key Laboratory. Not to mention anything else, when teachers who are officially registered under Guozhong are accepting graduate students, there will be 0.5-1 more places every year. And this is definitely an unexpected surprise. Actually, Chang Haonan didnt think about it in this direction at first. ??But Beijing Airlines already has a State Key Laboratory of Software Development Environment with different directions but in the same field. Although it belongs to the computer department. More importantly, his project team is not even a grassroots team so far. He is the only one and has no results. ?The only advantage is that the hardware equipment is relatively new and complete, and Chang Haonans painting skills are excellent. ??Its just a matter of exchanging a piece of cake for a piece of National Key Laboratory brand... It can be said that it has never been done before or since. ??If it really works out, Im afraid it will be a good story in the future. But considering that it was Ding Gaoheng who expressed his stance after all, and combined with the contact between the other party and the Science and Technology Commission... ?Obviously its very interesting! Originally, Chang Haonans plan was to go home from the Science and Industry Committee and catch up on some sleep. But under the stimulation of such a big thing, he lost his sleepiness almost instantly. After returning to school, he went directly to Tang Lintian. No need for any small talk, just get straight to the point. Dean Tang, I have a project in hand and I want to support the school. ?This statement may seem a bit strange, but there is actually nothing wrong with it. The funding was approved by the Economic and Trade Commission, the title was given by the Science and Technology Commission, and the project was initiated by Chang Haonan himself. With only a few people and land from your school, you can get a project team that has a high probability of being rated as a national key laboratory. . ?You go out and ask for such a good thing, the principals probably wouldn''t even dream of doing it. At first glance, the latter thought it was Chang Haonan who came to him for support, and his eyes immediately lit up. ?The thing he worries about most every day now is that at a critical moment, Chang Haonan suddenly runs away from school. Thats easy to say, you want to...wait, you want to support the school? ??Tang Lintian immediately made a tactical retreat. Although almost everyone has said this sentence, "Today I am proud of the school, and tomorrow the school will be proud of me", not many can actually do it. And Chang Haonan is definitely one of them. In fact, after getting a seat in the expert group of the 973 project, he has become an extremely important resource for the school. ??It''s just that Tang Lintian hasn''t gotten used to it yet, and secondly, this kind of resource is mainly reflected in the long-term impact in the future. At least we have to wait until next year when the subject application is concentrated. Now that Chang Haonan is talking about providing some support to the school, it must be something else. "right." ?Chang Haonan brought a chair and sat down: In a few days, the Economic and Trade Commission will approve a grant of three million for me to build a numerical simulation and data analysis laboratory. "ah?!" ??Tang Lintian is simply confused. Didnt I remember that I wanted to set up a company to run this matter? He knew that the other party wanted to develop a simulation modeling software, but because from the beginning, Chang Haonan said that this kind of software that required long-term maintenance was best operated by a company, so he didn''t pay much attention to the follow-up. Condition. ?Beijing Airlines is not a school that specializes in computer science, and it is definitely not a wise choice to compete with the Academy of Sciences for corporate ownership rights. ??Tang Lintian still knows how much he weighs. Is this... ?Chang Haonan felt that under this situation, it would be a bit embarrassing to tell the actual situation that the company cannot be established yet. So he changed his statement: "Buy one, get one free. According to the arrangements of the Economic and Trade Commission, the newly established enterprise must be under the name of the Academy of Sciences. But after all, I am a student trained by our Beijing Airlines, so I feel that I still have to fight for some resources for the school." ?Hearing these words, Tang Lintian felt moved, very moved. ?Tears filled my eyes. Then there is guilt. What a good student. I was actually worried that someone would run away. ? If nothing else, the 3 million yuan in scientific research funding would definitely belong to a large project team in Beijing Airlines. However, Chang Haonan later revealed more important content: In addition, I plan to declare this laboratory to the National Science and Technology Commission and Planning Commission as a national key laboratory jointly built with the Academy of Sciences. When the company is established in a while, it can also carry out in-depth integration of industry, academia and research. NationalNational Key Laboratory? Tang Lintian didnt notice at all that the pen in his hand had soaked a large piece of paper near the pen tip. "Xiao Chang, this application is quite troublesome, and the standards are also very high. When Professor Li Wei of the Institute of Engineering and others applied for the Software Development Environment Laboratory, several research groups worked for more than half a year to get all the information. The approval process has been completed..." Mainly because the surprise was a bit too big, Tang Lintian didn''t dare to believe it rashly. Afraid of rejoicing in vain. You should know that so far, there are only more than 130 national heavy projects nationwide, and it is expected that the second batch of construction will be completed by the end of the year, with only about 150. And what Guozhong represents is not just more financial and human support. It is also equivalent to recognizing the leadership status of this laboratory in this field at the national level. Not to mention the whole country, at least relevant research within a certain region will gradually be carried out around it. ??If the scientific research force is described as an army, then this laboratory is the staff responsible for command. The person who benefited the most was of course Chang Haonan himself. ??But Beijing Hang University, where the laboratory is located, can definitely benefit. I know this, but the matter of declaring national importance was suggested by Director Ding of the Science and Technology Committee ??Tang Lintian raised his hand to indicate that Chang Haonan didn''t need to continue talking. In this case, not to mention 100% guarantee, it is absolutely certain. As long as you don''t mess with it, the cooked duck won''t be able to fly. The school will do its best to cooperate, just make your request. I need people, both those engaged in scientific research and those engaged in administration. ?Chang Haonan naturally didn''t come to Tang Lintian this time just to do good people and good deeds. No matter how unfaithful he is, he himself can''t take care of students yet. So if you want to get enough human resources, it is best to get support from the school. The number of students at the Academy of Sciences is still smaller after all. ??And it is impossible for him to complete the paperwork required to declare national importance by himself. ??It''s natural to leave these chores to the school. These are no problem. Once the laboratory is established, whether you are a faculty member, undergraduate student or graduate student, I will give you whatever you want. Tang Lintian tore off a few pages of paper that had just become wet, and quickly wrote down Chang Haonan''s requirements and some work that needed to be done later... Xiao Chang, how do you include your name in the declaration? Laboratory director, or something else? Well, I have talked with Director Ding before. Although I am indeed the person in charge of the laboratory, the title director is still not appropriate. Or I should just write it as project director, or R&D director or something like that. This is actually Chang Haonans own opinion. When the supercomputing center was established previously, he took on the title of acting director. However, after experiencing it, he always felt that it was a bit too official. He still prefers a more academic title. After all, I havent even graduated with a Ph.D., and I havent officially joined the job yet. Low-key. Then I have an idea. Tang Lintian, who fully understood, stopped writing: Chief Scientist, how is it? (End of this chapter) Chapter 359 I want the priority to use Dawn 2000 Chapter 359 I want the priority to use Dawn 2000 In the end, Chang Haonan''s title was decided. As for the corresponding hardware support, it is secondary. ??The entire building of the supercomputing center was originally managed by Chang Haonan. There''s still a lot of empty space inside now ??Numerical Simulation and Data Analysis Laboratory, as you can tell from the name, almost no experiments are required. ?It happens to be close to the supercomputer, which is convenient. In the next few days, Chang Haonan naturally traveled between the Academy of Sciences and Beijing Airlines to prepare for the soon-to-be-established laboratory. ?Although the desk work has been handed over to other people, he still has to do it himself for many things that require publicity or on-the-spot decisions. ?Coincidentally, the Academy of Sciences that has major cooperation with Chang Haonan happens to be the Institute of Computing Technology, which he has been in contact with before. When I came here before, Chang Haonan was just one of the countless people who applied to use supercomputing for projects. It was already a big deal for the 601 Institute to send a senior researcher to contact him. Under normal circumstances, he could just send anyone. The staff is about as good as it gets. ?But this time, Chang Haonan has been upgraded to become a partner of a major project team and the future head of a company affiliated with the institute. So the reception specifications are naturally completely different. A car from the Academy of Sciences took Chang Haonan directly from school to the Institute of Computing Technology. The person who came to receive him was also promoted to the deputy director of the institute, Li Jie. Just became an academician the year before last. Responsible for the research and development of the Dawn series supercomputers. ??The supercomputer Chang Haonan used when he first came here was the one he was responsible for developing. Hello, Academician Li. Chang Gong, you are young and promising. I have heard of your name a long time ago and have seen it on TV. This time I finally have the opportunity to meet you in person. ?Li Jie stepped forward and shook hands warmly with Chang Haonan. I remember that the regular worker probably came to our office once last year, but its a pity that I was on a business trip and couldnt catch up. ??Although it was the first time for the two people to meet, Li Jie only used two sentences to bring them closer. ?Especially, he actually dug up what happened last year. Im flattered that Academician Li can know about my first visit. ?Chang Haonan also greeted the other party politely. And he was indeed quite surprised. Although everyone who uses supercomputing will leave a record, under normal circumstances no one will look through it one by one. Well, the paper you co-published last year with Researcher Xu from our institute must have been carefully read by at least colleagues in the domestic circle. I later asked Researcher Xu specifically about your situation. ?This statement is quite reliable. It seems that Li Jie is not just improvising. ?However, before Chang Haonan could speak again, the latter changed the subject: Speaking of which, I heard from people in the Histology Department that shortly after the Chinese New Year this year, our researcher Xu was abducted by you, Chang Gong, and he hasnt come back yet? Ahem ?Chang Haonan almost couldn''t breathe. "Academician Li, you can''t say that. It was the Institute of Electronics 14 in Jinling that invited us together. It''s just that Researcher Xu still has some finishing work to do at Yan Liang, but I guess it will be done soon. " Hey, Chang Gong, you dont know something. Li Jie waved his hand and said while taking Chang Haonan upstairs: "Our Researcher Xu is indeed very capable, but her character is really difficult to deal with. Almost all the researchers who have worked with her have suffered psychological trauma because they cannot keep up with her ideas. The graduate students under her She is so mentally broken that I am crying to drop out of school. You are already quite amazing for being able to cooperate with her stably. " As he spoke, he gave Chang Haonan a thumbs up. Soon, the two people who had been chatting with each other arrived at Li Jie''s office. Regarding the overall situation of the project team, we have received documents from the Science and Technology Commission and the Economic and Trade Commission. ??Li Jie poured a glass of water for Chang Haonan and himself, and then sat on the sofa opposite the latter: "Whether it is cooperation with universities or enterprises, we have very rich experience, so if you have any requirements, you can feel free to put them forward to us. As for the joint listing of laboratories, we will do our best to cooperate. " The joint laboratory is naturally not just about hanging two signs in one place, but setting up a laboratory on both sides of Beijing Hang University and the Institute of Computing Technology. "The time for this project is relatively tight, so I won''t try to keep it secret from you, Academician Li. What I need now are equipment and people." ?Chang Haonan put down the paper cup in his hand: I understand you are currently developing the latest Dawn 2000 supercomputer? Thats right. ? Dawn 2000 is a public project, there is nothing to hide: However, we have just solved some of the technical problems left over from the Dawn 1000A in the Liaohe Oilfield. If Chang Gong really wants to use the Dawn 2000, Im afraid it will take a few years. Time doesnt matter, I can afford to wait. Chang Haonan replied without hesitation: "Since you, Academician Li, have read the document sent above, you should know that my current project team is a frontline for the company that will be established next year. The 3 million yuan of funding is only the expense for this half year. I want to be able to do it by the end of the year." It was actually a bit difficult to spend it all before. ? Hearing the figure of 3 million for half a year, even Li Jie''s eyes widened slightly, and the hand holding the water glass trembled. You must know that the annual research funding for the entire Sugon computer development project he is responsible for is only 20 million. ?That was a hardware project. Software projects are relatively less aggressive in terms of spending money. Whats more, this is still a project team in the initial stage. It can indeed be said that he is extremely rich. So you want to I want to invest in Sugon Group in the name of the project team, and of course in writing it will be in the name of the company. The condition is that I will get the priority to use the Sugon 2000 computer after it is completed. In addition, I hope that some capable people from your firm can join the project team and hold key positions in future companies. In fact, this is exactly the purpose of Chang Haonan''s trip. ? Li Jie just said that they have rich experience in cooperating with enterprises. This is by no means a lie. Because General Manager Liu, who dreams of computers, is now the nominal director of this computing technology research institute. Although he is not responsible for the actual work and does not care about money or people, at least his name is still there. ?Of course, it probably wont last long. ?In the original timeline, the feud between the Institute of Computing and the Dream Company continued until the turn of the century. The process was extremely complicated. In short, the final result was that the Institute of Computing Technology lost the dream company as a platform for incubation results. Many projects including the Sugon Computer Project that Li Jie was responsible for were affected, and Academician Ni Nanguang also left completely. The Dream Group. Chang Haonan''s company, as an enterprise affiliated with the Academy of Sciences, cannot directly intervene, but it can still be done to reduce some losses and provide another platform for the results of the Institute of Computing Technology to be implemented. Faced with these two requirements, Li Jie thought for a moment: "Human, it''s definitely no problem. As long as you have this desire and you can afford the salary, I''ll give you whatever you want." But is this an investment In addition to being the deputy director who is actually responsible for presiding over the work of the computing institute, Li Jie is also the president and chairman of Shuguang Group. He naturally has to consider a risk issue: I dont object in principle, but Im afraid we have to wait until your company is officially established, or at least have an official seal, to discuss how to invest and how to grant the priority right of use. "no problem." ?Chang Haonan nodded. At this time in 1997, probably no one would have imagined what would happen in the next few years. It is normal for Li Jie to show hesitation. Besides, Chang Haonan was not prepared to completely convince the other party in one go. As long as the cooperative relationship between the two parties is reached, he will have a reason to take action at a critical moment. As for how many resources can be saved by then, it depends on the actual situation. ?But at the very least, it can still maintain the "skills, industry and trade" path in China''s IT field from being completely cut off. (End of this chapter) Chapter 360 Accidentally revitalized China’s supercomputing industry Chapter 360 Accidentally revitalized Chinas supercomputing industry Perhaps because Chang Haonans expression was a little tangled when he answered, Li Jie added: Changgong, dont worry too much. Considering your reputation in our Shuguang Group, I think it wont be a big problem to pass. This is just a process in accordance with the regulations. This statement made Chang Haonan somewhat interested: What is my reputation in your group? Lets put it this way, thanks to Chang Gongs actions in April this year, our group has achieved profitability three years ahead of schedule, and we dont have to worry about our performance in the next two years When talking about this matter, Li Jies face almost burst into laughter. In April ?Chang Haonan briefly recalled it. I have done many things in the first half of the year, but if I really want to be related to Shuguang Group, whose main business is IT, it should only be the influential Beijing Airlines Supercomputing Center. Whats going on with our schools supercomputing center? He confirmed tentatively. Thats right, it really helped us a lot. ?Li Jie nodded: "Originally, supercomputers haven''t received much attention, especially to be honest, the performance of the Sugon series of supercomputers is not ranked high in the world. In China, there are several related research institutes of the Academy of Sciences, and the Extreme A few state-owned enterprises are using it, and tens of millions of dollars are invested in it every year, but there is almost no output. " "It turns out that after your school started doing this for a while, it was like a switch was turned on. Now colleges and universities across the country have begun to engage in an arms race in the field of supercomputing. No matter what field or direction it is, it seems that there is no such thing in the school. , just like being embarrassed to meet people..." At the beginning of this year, when I reported to the board of directors, I even considered giving up part of my shares in exchange for new investment because of the huge losses. As a result, only a few months later, the revenue pressure suddenly subsided..." So many schools use our domestically produced Dawn series machines? Chang Haonan was delighted after hearing this. There is no way. These days, even if the United States and Japan block the top technologies and use their own second-rate products, the performance will be reduced to a dimensionality reduction. Even Beijing Airlines supercomputer was built on the basis of platform authorization from Silicon Graphics (SGI). Although it cannot be said to be completely imported, it can be regarded as quasi-domestic at best. Most schools are not that wealthy. Li Jie took a sip of water and continued to explain, "Schools with abundant funds such as Qinghua University, Yanda, Jinling, and Zhejiang Province can naturally develop higher-performance supercomputing platforms like your school, but some ordinary universities and even Its a vocational and technical school in a developed coastal area. It doesnt have such high demand or doesnt have that much money. Naturally, it would be more cost-effective to choose our Shuguang Groups server products. From the tone of the former, it can be heard that even if he only got a part of the order with a low profit margin, he was already quite satisfied. ?Not only him, Chang Haonan is also quite satisfied Such a butterfly effect has never been thought of before. ? Just now, he was thinking about how to maintain the technology, industry and trade development route of China''s IT industry with technology research and development as the core for two years without being cut off. As a result, it seems that Shuguang Group has become somewhat famous. ?In the original timeline, they did encounter financial difficulties as Li Jie said, and in the end, after some operations, Dream Group took away 20 million shares. Although it does not play a decisive role, it is still a bit traumatic. The current situation is much better by comparison. Of course, the idea of ??using schools as the main body to operate supercomputers was not proposed by Chang Haonan. ??However, the reason why Tang Lintian proposed such a bold and risky proposal, and it was approved at both the school and the Science and Technology Commission levels, is inseparable from Chang Haonan. It is the latter who has used his own results to prove that computational science can be applied to almost any engineering field. So Chang Haonan didn''t feel any problem wearing this hat on his head. Looking at it this way, we have to cooperate in the future and shoulder the responsibility of promoting supercomputer applications. At this time, Chang Haonan had already thought of further places. "Nowadays, many ordinary colleges and universities are just following the trend. If they later find that they cannot use it, or use it poorly, it may have a negative impact on high-performance computers, and it happens that these schools are the main buyers of domestic brands. We still have to let them really taste the benefits before they will continue to support our computer business." Li Jie was stunned after what he said. As the head of Shuguang Group, he is not even as considerate as the 20-year-old Chang Haonan in front of him. ?Its no wonder that the other party was able to gain the trust of the Economic and Trade Commission and the Science and Technology Commission at such a young age. ?Li Jie looked at Chang Haonan with more attention. Actually, this cannot be blamed on the formers short-sightedness. ??At the end of the 1990s, even around the world, the situation of focusing on products over services was a common phenomenon, let alone China, which was still very backward in terms of business model. Chang Haonan was able to come up with this kind of thinking naturally because of the impact of the times more than 20 years later. "This aspect has indeed been something we have been neglecting. It seems that we need to put more thought into it, Chang Gong." Li Jie said solemnly: Dont worry, I will also report this matter to the groups board of directors. There should be no resistance to investing in us. In short, the communication with the computing institute was very smooth. ?In fact, on the way to the Computing Institute just now, Chang Haonan even thought about whether he could directly fish over Academician Ni Nanguang in advance. ??But after careful consideration, the other party has not been fired by Dream Group after all, so the maneuverability is really not very good. ?Besides, his most important task at the moment is to recruit people to develop the simulation modeling software, which cannot be regarded as the other party''s area of ??expertise. Lets wait until the business scale expands to a larger area in the future. So I didnt mention it for the time being. After finalizing all the major matters, Li Jie personally sent Chang Haonan to the door. Chang Gong, I wish us a happy cooperation. ??Although they only chatted for an entire afternoon, Chang Haonan could hear a sense of sympathy from the other party''s tone. Its a pleasure to cooperate, and I would like to thank Academician Li for his full support to our project team. I hope we can have more in-depth exchanges in the future. ?After all the problems of money, personnel, staffing and equipment are solved, the only thing left is to start work. Chang Haonan is not superstitious. He doesnt care about the date of the unveiling. He just wants to find a sunny day to do it. Looking at the weather forecast, I found that it will rain for the next week. Finally we had to set the time for this Friday afternoon. The location is naturally the main building of the Supercomputing Center. If it rains, let it rain. Anyway, it can be done indoors like last time. ?After arranging the ceremony''s process requirements to the administrative staff below as usual, Chang Haonan sat in his office and finally got some time to relax. Accidentally revitalized China''s supercomputing industry in advance, which is still a great sense of accomplishment for him. At this point in the late 1990s, due to ecological reasons, it may have been difficult for China to compete with its American counterparts on the desktop, regardless of hardware or software. But judging from the current situation, there is still a chance to occupy its own place in the field of commercial and industrial machines. As long as a trace of fire can be preserved, there will always be hope for continued development. After all, a single spark can start a prairie fire. (End of this chapter) Chapter 361 Ruthless NTR towards Yenching University Chapter 361 Ruthless NTR towards Yenching University Chang Haonan, who was half asleep and half awake, was finally awakened by a knock on the door. Teacher Chang? Following the knock on the door was a clear female voice. ?It took him about half a second to regain consciousness, and then looked out the door in confusion. ?Nowadays, many people call him Chang Gong, Mr. Chang, Dr. Chang and even Director Chang, but it is indeed rare to call him teacher. Two men and one woman appeared outside the door. Chang Haonan, whose brain speed had not yet fully increased, calmed down and found out the identity of the other party from his memory after a while. ??Of course it was the three Yan university students who had come to ask him for advice before. Its just that this time the three of them were dressed much more formally, less student-like when they met last time. Its you three...come in ?Chang Haonan sat up straight. Uh are we disturbing your rest It seems that their roles have not changed, and the girl named Lin Zhi is still in charge of speaking. ??But standing at the door, she seemed to be in a dilemma. ?Chang Haonan just fell asleep sitting down. At the door, one would think that he was just looking at the computer screen in a relaxed posture. It doesnt matter, its about time, otherwise you wouldnt be able to wake me up easily. ?Past experience shows that if he really falls into deep sleep, he will not hear the ordinary alarm clock or phone calls at all. One sentence resolved some of the embarrassment. Thats right, Teacher Chang, we went to Indianapolis to compete and came back. The three of them put their umbrellas outside the door and walked into the office. The atmosphere became a lot more lively. As I said last time, there is no need to call the teacher... This time is different, this time you are really our teacher. As he spoke, Lin Zhi took out an exquisite trophy and a blue-covered certificate from the schoolbag that Jian Feian was carrying behind his back, and put them on Chang Haonan''s desk. Although the process was a bit tortuous, in short, we won the championship. The latter put down the cup in his hand and looked over. Then he was surprised to find that his name was on it. ?CHANGHaonan. The trophy is one for each member of the winning team, and the certificate is your best instructor award. Suga Feiangs speech is still so concise and to the point. Best instructorI didnt even go to the competition with you Looking at the award certificate in English in front of him, Chang Haonan felt a little embarrassed for the first time. ?However, these two things can enrich the display cabinet placed not far behind him. ?After receiving the May 4th Medal, Tang Lintian specially customized one for him to put in his office, and said that he could temporarily put the honors from his student days into it. But to be honest, Chang Haonan had not received any decent honors before his third year in college. A second-class academic scholarship is too shameful. In the end, apart from the medal, I had to put in my degree certificate and graduation certificate to top up the number. "What does this have to do with it? The ancients said that a good doctor does not have a brilliant reputation, and a good fighter does not have great achievements. You can bring out a championship team without even leaving anyone. Isn''t it more proof of its gold content?" ?Although Song Tingyu talks little, he has high emotional intelligence whenever he speaks. Lin Zhi next to him quickly added: The most difficult thing about solving a problem is finding the right direction. Although you only chatted with us for a few hours, the inspiration you gave us is the most important. For example, in this years second competition, as you said, you added Using three models outside the standard, it is said that nearly one-third of the final submitted results were unable to converge, let alone seek optimization. ?Chang Haonan remembered that he did say such a thing, but in the conscience of heaven and earth, it was really just a casual saying. Speaking of which, when you guys came here last time, I remember saying that we were going to compete soon. Why didnt the results come out until July? The reason for making it public is that the newly added test functions and model optimization take longer, and it also involves a lot of wrangling in the changes to the rules. Speaking of this matter, Lin Zhis lips curled up slightly: "But in fact, the organizers added the three new test models in order to allow the host Purdue University to take more advantage. Judging from the results, it did beat the top schools in the previous session. They were caught off guard, but they didnt expect us to come out halfway. So the final field test session was delayed until the end of June. They even temporarily modified the rules, but they still couldnt beat us. ?This operation made Chang Haonan amused. In more than twenty years, Americans have indeed changed little in terms of being unable to afford to lose... After all, our instructor is great... Song Tingyu inserted a rainbow fart at the right time. In short, because the face-eating was so ugly, after the end of this second competition, the complete schedule was not even disclosed, but the results were only announced on the website..." ?Lingzhi continued to complain. ?Chang Haonan briefly played with the trophy carved out of glass, and then stood up as he spoke, preparing to put them into the glass cabinet behind him. Looking back, I found that the three of them were staring blankly at the mostly empty cabinet. This is the first time I have won a trophy in such a high-level competition, which is very memorable. ?Chang Haonan didnt pay much attention and just said casually. Has Teacher Chang never participated in this kind of competition before? Jian Feian looked shocked at Chang Haonan. In his opinion, if people like Chang Haonan participate in the competition, they will definitely win the prize. "Um" In fact, Chang Haonan vaguely remembers participating in a physics competition when he was in high school. Finally won a provincial third prize. In fact, it is a participation award, as long as you dont turn in a blank paper, you will get it. Teacher Chang should not need to prove himself by participating in competitions. At this juncture, it was Song Tingyu who put the words into perspective. Indeed, and you have to leave some opportunities for others. ?Chang Haonan picked up the cup with a nonchalant expression and took another sip of water. Stable as a mountain. Subsequently, the three of them excitedly told Chang Haonan about their various strange experiences during the competition on the other side of the ocean. In this era of relatively limited information, many things can indeed be called novel. At this moment, an idea flashed in Chang Haonans mind ?Perhaps the partners of my project team do not need to be limited to the research groups of this school? After all, when he met with Academician Li Jie in the morning, he also talked about promoting the application of supercomputers. Isnt this the best opportunity right now? ?Of course, specifically for Yanjing University, he may not be used for promotion. After all, almost one-third of the countrys IT tycoons are from them. But we can definitely use this as an opportunity to recruit a few YSU students to help. In any case, they are just starting out and cannot touch the real core part. Besides, software must be made public sooner or later. As for confidential issues, it will be a matter after the software development is completed. Perfect. Considering that this project team was brought here by Chang Haonan, Beijing Airlines will definitely not have any objections. Its just that for Yanda, it seems to mean a bit NTR... After thinking about it, Chang Haonan took advantage of a chance to speak and asked: You must have just returned to China not long ago. Have you heard that a State Key Laboratory of Numerical Simulation and Data Analysis will be inaugurated here in two days? Even if it is NTR, its properties are different. First of all, you have to make sure that others are willing. ?There was a moment of silence in the office. National priorities ? Linzhi blinked: Is italgorithmic? ??Yenjing University has many national key laboratories, but so far none of them are specifically in the computer field. Not entirely. The most important task after its establishment is to complete a strongly coupled multi-physics simulation modeling tool. The algorithm is only one of the problems that needs to be solved. From their expressions, Chang Haonan could see that they were quite interested, so he continued to explain: Although it sounds difficult, I already have a relatively systematic idea, so it doesnt matter, just follow my plan when the time comes. NoIm not afraid of difficulties Even Song Tingyu, who always speaks with high emotional intelligence, is a little stuck in his speech: Well... the three of us are just undergraduates, can we really join? ?Of course he could hear that Chang Haonan meant to invite them in his words. But it was like being hit by a lottery jackpot, I felt dizzy. ?This experience will be of great significance to them, whether they continue their studies or work in the future. So Im asking about your wishes. If you want to come, I can tell Academician Yang. Anyway, we have a somewhat cooperative relationship... Of course Im willing to go. There was some trembling in the voices of the three of them. In fact, for them, the most important part of the conversation when they first met Chang Haonan was not the technical aspect. But let them really start thinking about what they want to do with their knowledge in the future. This is a perfect opportunity. Thats good, Ill contact Academician Yang when the time comes and see what her opinion is. If theres no problem, you can come over and help. Of course, I will give you subsidies according to the standards of a scientific research assistant. ?Chang Haonan nodded with satisfaction. ??If you are in love with me, can you still call it NTR? (End of this chapter) Chapter 362 The most powerful brain, modular parallel program development! Chapter 362: The most powerful brain, modular parallel program development! After chatting some more about the project, Lin Zhi took out a beautifully decorated small box from his bag and placed it on Chang Haonan''s table. By the way, Teacher Chang, we also brought you a gift. A model racing car. ?? Indianapolis has a long history of the Indy Formula Series and a rich racing culture. ?Originally, she was going to bring up the topic when a few people went to see the Indianapolis Motor Speedway, but Chang Haonan interrupted the progress of the chat. Having no choice but to give it a bit stiffly. IndyCar? The gift packaging box is transparent, and Chang Haonan can see the contents inside without opening it. Do you even know about this game? Song Tingyus eyes lit up: Before I went to the United States this time, I had only heard of F1. Well...I also like F1 better. Chang Haonan looked at the exquisite racing model for a while: And I guess Michael Schumacher will win more than one championship with Ferrari. After saying this, he noticed that the corners of Song Tingyu''s lips curled up involuntarily, obviously disapproving of it, but did not refute out of politeness. After all, the Red Circus has not won the driver''s championship in almost 20 years. F1 fans in this era are more concentrated on Williams and McLaren. ?Of course Chang Haonan just said it casually and did not continue to dwell on this issue. He placed the model next to the computer monitor: You should make preparations after you go back, and you can also listen to Academician Yangs opinion. In short, if you join my project team, you will definitely not be able to go home during the summer vacation. As a newly confirmed national key laboratory, the unveiling ceremony was naturally quite grand, even bigger than the previous time when the supercomputing center was established. ?This is not even a request from Chang Haonan, but an arrangement made by the school. ??In any case, this laboratory is built on the campus of Jinghang Airlines after all, which is a shameful thing. ?In addition, Xu Yang and Yao Mengna also rushed back from Haojing. The former will be responsible for part of the software development work, while the latter will specifically optimize the aircraft design based on actual use experience. Since Chang Haonan has accepted the title of chief scientist, the laboratory does not have a director for the time being, and only two deputy directors are responsible for assisting the work. According to regulations, the State Key Laboratory will conduct an acceptance inspection 2-4 years after its completion. As long as it is signed by the director at that time, it will be fine. Considering Chang Haonan''s growth rate, he should have graduated by then, and there will definitely be no problem in officially assuming the position of laboratory director. So theres no rush. Considering the tight time, Chang Haonan chose to organize the first meeting of the project team on the night of the unveiling ceremony. ?Originally, Chang Haonan was planning to call a work meeting directly and start assigning tasks to start work as soon as possible. But just as the meeting was about to begin, Song Jian, who was just here for a formality, suddenly arrived. Following him were Yang Fuqing, Li Jie and several other academicians who were also invited to attend the ceremony. ??This is definitely impossible to exclude. ? Director of the Science and Technology Committee is just a less important one among Song Jians many titles. In fact, he is an expert in optimal control system theory and distributed parameter control theory, an academician of the Chinese Academy of Sciences and the Academy of Engineering, a foreign academician of the Royal Swedish Academy of Engineering Sciences, the US National Academy of Engineering, and the Russian Academy of Sciences, and the proposer and person in charge of the 973 Project and the Spark Project... ?And if nothing else happens, he should also be the next dean of the Academy of Engineering. In order to show respect for the big guys, the title was temporarily changed to a seminar. ?Of course, since it is a discussion, the content of the meeting that has been prepared cannot be changed. He plays the leading role alone, and its essence is closer to answering questions. Originally, Chang Haonan meant to let Song Jian say a few words first. But the latter waved his hand to show that he didnt need it, and spread out a notebook on the table in front of him: "We came here without warning for inspection and learning. Comrade Chang Haonan, just carry out the meeting process as usual. If you have any questions, we will ask them in the speech session later." Chang Haonan quickly understood that the other party was doing this. I''m afraid I came here with the intention of giving myself a platform. His main contacts in the past year were, after all, units under the Commission of Science, Technology and Industry for National Defense. However, the laboratory established this time involved cooperation with the Academy of Sciences and many universities belonging to different systems, and it may not be as smooth as before. With Song Jians words, the situation is completely different. So after the brief introduction, Chang Haonan didnt waste any time and got straight to the point: First of all, welcome to join the Numerical Simulation and Data Analysis Laboratory. "I believe that anyone who has done research using simulation methods knows that the current mainstream numerical simulation software in foreign countries is difficult to balance between calculation efficiency and accuracy, and it is difficult to obtain results for some complex problems, especially complex problems with multi-field coupling. " So our first project, and also the most important project, is to first create a handy tool for ourselves, which is a brand-new, multi-physics oriented simulation software. ?Chang Haonan turned to the next page of the PPT, which showed the workflow he had spent several days designing. For this purpose, he spent all the scientific research points provided by the system. ? Even so, it can still only provide a basic framework, which will require continuous upgrades and maintenance. It is enough to show the complexity of this project. Compared with the traditional methods in the past, we have mainly improved in the following four aspects. "First, it is a new dimensionality reduction method for nonlinear partial differential equations. I have sent the relevant theoretical content to you in writing, and I will be personally responsible for this part, so there will be no details at the meeting. Lets discuss it again. If there is anything you are interested in or dont understand, you can talk to me later. Second, it is to develop new time-frequency domain algorithms for two sets of strong coupling fields: force-thermal and electromagnetic. Third, for most problems that can be solved using traditional methods, we will not completely abandon the finite element method, but for complex problems, a new parallel finite element analysis process needs to be developed. Fourth, it is to optimize the key step in almost all numerical analysis methods, that is, the mesh generation method, especially for some complex dirty geometric problems, we must come up with corresponding solutions. In order to improve efficiency, I will divide the next three tasks into 9 modules and hand them over to different groups for synchronous and parallel development. Finally, they will be centralized and connected to me to form a complete application. As soon as this sentence came out, the entire conference room was unsurprisingly filled with exclamations. Even the mature and steady Song Jian and others raised their heads and looked at Chang Haonan on the stage in surprise. In fact, the four aspects mentioned by the latter may not sound like much, but in fact they are equivalent to overthrowing and rebuilding the traditional numerical analysis method. The difficulty is comparable to moving a mountain. ?Now he is not prepared to do it one by one in order, but wants to do it at the same time? Do you need to have all the modules connected to him? ?This not only requires strong overall control, but more importantly, the fault tolerance rate is very low. Mr. Chang, the modular development you mentioned is indeed very efficient, but if any part develops some structural problems, it will affect the whole body..." Yes, Mr. Chang, this is good for us. Isnt the pressure on you too great? After all, you have to integrate all the modules..." Everyones reaction was not beyond Chang Haonans expectations. In fact, without the help of the system, he would not dare to do such tricks. ? Lockheed Martin used this method in its previous life when developing the flight control software for the F35. ??And it was also outsourced to Indian programmers. Finally, until Chang Haonan was reborn, he had been in service for ten years, and there were still more than a hundred bugs that had not been fixed... He raised his hands and pressed them down in mid-air to signal everyone to be quiet. I can confirm that there will be no structural design problems. As long as there are no internal errors in all the modules, they will be able to run stably after being assembled together. ?Chang Haonan said in an extremely determined tone: "As for the bugs that occur during the programming process, this is inevitable, but it will not have a big impact on our project, because after you submit the project to me, if there are bugs, I can give you feedback to the specific location. , just change it when the time comes. "In addition, although each of you is only responsible for a part of the program, you must also have an understanding of the overall development ideas, so as to ensure that there are no problems in the direction when performing specific tasks. Therefore, there will be a total of three meetings of the same nature, one each. Introducing the specific content involved in the next three parts of the work, including theory and algorithms. For example, today I will talk about the most basic fourth part, which is the automatic grid generation algorithm. In general, as long as you follow my guidance and express the ideas I have conceived in the form of code, this project will definitely reach the end. ?At the end of a few words, the entire audience fell silent. ??If someone else had stood on it, he would have been bombarded long ago. But now. On the one hand, it is the support that Song Jian has just shown, and on the other hand, everyone is more or less aware of some of the chief scientists previous impressive deeds. ?Coupled with Chang Haonans confident but not blind feeling when he just spoke... ?An idea popped into everyones mind almost at the same time: Is it really possible? Chang Haonan looked at the participants with different expressions in front of him: Did I understand it clearly? (End of this chapter) Chapter 363 The idea you mentioned was proposed by me. Chapter 363 The idea you mentioned was proposed by me. After confirming that no one had any other questions or concerns, Chang Haonan returned to the topic of the meeting again. Since there is no problem, lets follow the reverse order on this PPT and first introduce a new parametric generation method of spatial grid structure. When he said this, the scientific research assistant next to him also pulled in a blackboard for him from outside. ?Although most of the content has been put on the PPT, considering that many of the people sitting below are just lecturers who have just joined the job, Chang Haonan felt that it was necessary to add some details in some places. "Since the current workload is basically saturated (and the scientific research points have been exhausted), we will not add graphics drawing functions to the software for the time being, and considering the difficulty of promoting the use of the software, even if it is added in the future, we will definitely retain the same The interfaces of common software on the market such as CAD, CATIA, and 3DSMax do not leave us much room for manipulation in this aspect, so we need to use boundary representation as a geometric model expression. " "In terms of topological structure, boundary representation consists of vertices, edges, rings, surfaces, shells and bodies. Vertices correspond to points in geometry, edges correspond to curves in geometry, and surfaces correspond to surfaces in geometry. The simplest CAD geometry The topology of the model is like what I am drawing on the blackboard..." Chang Haonan drew a simple rectangular diagram on the blackboard while introducing some basic principles related to geometric models. For some projects with relatively simple models, in order to continue the usage habits and ensure calculation efficiency, we will use the delaunay triangulation theory to generate triangular or tetrahedral meshes. The delaunay triangulation is the dual diagram of the Vorinoi diagram. "We assume that P={Pi}(n, i=1) is a set of non-overlapping points in a given d-dimensional Euclidean space Ed. Then for each point piP, its corresponding Vorinoi element V can be defined (Pi), V(Pi) is a region near pi that meets the following conditions..." ? V(Pi)={xEd||x-pi||||x-pj||ji} In the large conference room, except for Chang Haonan''s voice and the occasional sound of chalk rubbing against the blackboard, there was almost no noise. Everyone below, from the young lecturer who had just joined the job to Song Jian, who was sitting in the middle of the last row, was either busy writing or thinking. Since the system has provided all the knowledge needed to build the entire software framework, Chang Haonan''s teaching method can be said to be from a high level, starting from the most basic but not simple basic theory, gradually rising to expansion, and even through Improved algorithm. At the end of the 1990s, computer-aided design was still in its infancy in China. Even the so-called cutting-edge topics are mostly focused on the application level, and few people pay attention to the underlying theory of simulation tools. ? This can be seen from the time when Chang Haonan and Yao Mengna first arrived at the 601 Institute last year, but Lin Shikuan and others did not even fully understand the art of parametric design. On the one hand, the current software tools are indeed not very easy to use. The simulation results for many practical problems are often extremely outrageous. It is often necessary to make judgments based on physical models or experience. For some experienced personnel, they may not be able to intuitively understand what is happening. superiority. On the other hand, because it has missed almost all three technological revolutions, China is indeed lagging far behind in relevant theoretical foundations, and it urgently needs to find out and fill in the gaps. In this case, even if some people think of going deeper into research, there are simply not enough objective conditions. Scientific research ultimately requires the support of the general environment. But Chang Haonans lecture was like a key, directly opening a new door to the audience sitting below. This is true both at the theoretical level and at the application level. For tetrahedral meshes, traditional regional decomposition methods mostly introduce additional constraints to the mesh generation of sub-regions. Take the classic method of using triangular meshes as sub-region interface meshes as an example. When the interface is If the angle formed by the model surface is too small, it will easily lead to the failure of the interface mesh generation and the deterioration of the sub-region mesh quality, so this problem should be avoided as much as possible..." Speaking of this, Chang Haonan picked up the cup and took a sip of water. ?At this moment, someone below raised his hand to indicate that he wanted to ask a question. Hello, Mr. Chang, I am Wei Fangchao, a researcher from the Institute of Computing Technology, Chinese Academy of Sciences. "As for the problem you just mentioned that the angle between the interface and the model surface cannot be too small, we have come across a new method in actual work, which is to convert the original triangular mesh into a pseudo-quadrilateral mesh. , that is, a quadrilateral with an infinitesimal side length. In practice, this situation can be completely avoided. What do you think of this idea? " ??When Chang Haonan heard that the other party said there was a new method, his whole body became energetic almost instantly. Taking classes is also about positive feedback. If someone is willing to interact, especially high-level interaction, it is actually a very effective incentive for those on the stage. ?However, after hearing what the other party said in detail, Chang Haonan almost choked on the water he had not yet swallowed. Even Yao Mengna, who was sitting on the side of the first row, lowered her head and covered her forehead. Judging from her shaking shoulders, she must be suppressing a smile. Ahem ?Chang Haonan calmed down a little. To be honest, Im not very good at evaluating it. Because this idea was exactly what I proposed last year After all, invisible pretense is the most deadly. The researcher who asked the question looked at Chang Haonan on the podium with his mouth half open, his face full of shock. ?The scene also erupted into a burst of laughter. In fact, this was one of the many problems that the digital design team faced when they first arrived at the 601 Institute during the parametric modeling process of the Bayan San Project design plan. Chang Haonan solved it by relying on this somewhat tricky method. question. Its just that even he didnt expect that this idea, which was only a temporary means, would be promoted through unknown channels. It has to be said that simulation methods in this era are really lacking. "Getting back to the subject, in fact, this problem should be more professionally called the parallel unconstrained tetrahedral mesh generation method. Although the pseudo-quadrilateral idea I proposed at the time can ensure the mesh quality and the success rate of mesh generation, the application object The solution threshold cannot be too large, otherwise it will easily affect the numerical stability and ultimately reduce the robustness of the method and program. "On the other hand, that method is also difficult to operate. If manual operation is used, it is quite a tedious task to convert a large number of triangles into pseudo-tetrahedral meshes. If automatic generation is used, then a pseudo-tetrahedral mesh with a side length of 0 The current generation method is very difficult to calculate and requires a huge amount of memory. The time consumed is often beyond our ability to afford. Regarding this point, if there are comrades here who are engaged in architectural design, they will be deeply aware of this. experience. When he said this, Chang Haonan noticed that many people below were nodding, obviously they had been troubled by this for a long time. I wonder if I explained it clearly? ?Chang Haonan looked at the questioner again. That is of course clear. The latter nodded quickly and sat back. Thanks to book friend [775544] for the 10,000 starting coin reward~ (End of this chapter) Chapter 364 A simulation modeling tool ahead of its time! Chapter 364: A simulation modeling tool that transcends the times! ?After this sudden episode, Chang Haonan turned over the blackboard next to him and continued to explain along the same route: "Because of the various problems faced by traditional methods, in our program, a parallel constrained tetrahedral mesh generation method based on Delaunay-AFT will be used to generate separation layers around the split plane, thereby decomposing the mesh coverage area. " The dividing plane is only used as a guide when generating the separation layer, thereby avoiding the introduction of geometric constraints. At the same time, the efficiency of parallel grid generation is ensured through the multi-level regional decomposition strategy; the communication mechanism based on disk cache saves the use of computer memory. use" This process is mainly divided into the following steps. The first is the assessment of grid size... "The second is the introduction of the dividing plane. The dividing plane can be determined with the help of the main inertial axis with the smallest moment of inertia of the center of gravity of M. The direction vector n of this axis can be determined by the eigenvector corresponding to the smallest eigenvalue of the inertia matrix of M To determine, the calculation method is as follows..." Just the "most basic" parallel surface triangle/quadrilateral mesh generation method described by Chang Haonan, it took nearly two hours to talk about it. ?This is just the theoretical part. "During the preparation of the laboratory, I briefly verified the mesh generation method just mentioned. The test objects were common gear hob models and cylinder head models, with 348 and 2736 surfaces respectively, including There are many kinds of mesh thin surfaces that are difficult to generate using traditional methods. I put the final results here for your reference. ?Chang Haonan clicked the mouse and finally released the last picture of the first PPT Because he had so much to talk about, during the previous testing process, the office software, which was still in its early stages, often got stuck and had to be divided into several files to proceed. "Here, I define the unit mass Q as the ratio of the radius Ri of the inscribed sphere of a unit and the radius Rc of the circumscribed sphere. In order to change the unit mass into an integer as much as possible, the result is multiplied by three, so the final definition of Q =3*(Ri/Rc) "It can be seen that compared with the high-precision mesh generated by the traditional method, the mesh generated by the new method does not generate a garbage mesh with a quality of 0.1-0.2 even in dirty areas with extremely complex shapes, and the quality is 0.6- The total proportion of meshes between 1.0 and 1.0 is more than 91.7%, and the weighted average quality is about 0.2% lower than the former. This difference will have almost no impact in actual work. " In terms of final time consumption, although the parallel strategy adds three steps of regional decomposition, grid refinement and node merging compared to the traditional method, due to the greatly improved grid generation efficiency, the total time for the two test models is Only 750 seconds and 2100 seconds respectively, only 5.9% and 4.7% of the serial method..." ??The moment Chang Haonan posted the program running log and told the results, the originally silent conference room exploded almost instantly. The former specifically did not maintain order immediately. After people suddenly receive information that is far beyond their cognitive level, it always takes some time to calm down their emotions. After all, that is 20 times the original efficiency. In the field of numerical computation, quantitative changes in time are themselves qualitative changes. The gear hob and the cylinder head are just two very simple models. It may not make much difference whether the mesh generation takes 20 minutes or 6 hours. But for some very large engineering projects, there is a huge difference between half a month and a year... What''s more, more careful people can already see that this new method developed by Chang Haonan works better for more complex models. That is to say, in practical applications, this advantage is likely to be more than 20 times. Li Jie, who was sitting back and taking notes calmly just now, raised his head almost subconsciously after hearing the two data that Chang Haonan said. ?He first raised his head slightly and looked at the curtain hanging on the wall in front of the conference room along the lower edge of his glasses. ? Judging from the enlarged display of the running log above, I heard it right. = 20 times. "this" ?Li Jie turned his head and looked at Song Jian, director of the Science and Technology Commission, who was sitting on his left. Then he found that the other party was also looking towards him. ? As absolute bosses in the industry, both of them obviously saw the potential of this software. Although what Chang Haonan has talked about so far is only about 10% of the entire project, it is enough to give a glimpse of the superiority of the final product. It is definitely an epoch-making product! Since my countrys first supercomputer, Galaxy No. 1, was put into use in 1983, the main problem that has been plaguing Chinas computer field has been the inability to increase its computing power. Its not even the turn to discuss the issue of component performance. ??But even if someone else exports the same chips and memory to you, the performance of your final finished product will still be very different. So much so that the United States has even relaxed its export controls on electronic components in recent years, but has strictly controlled the platform architecture. In short... I dont think you pose any threat. The actual situation is indeed similar. The latest Sugon 1000A supercomputer developed by the Institute of Computing for the Liaohe Oilfield has a peak operating speed of only about 6 billion operations per second. The Sugon 2000-1, which is currently under construction, has a target of only 20 billion operations. ASCIRed, which was just put into use on the other side of the ocean last month, has reached a speed of 1 trillion times per second. As for mass-produced commercial models like those purchased by major universities, the performance gap is even more obvious. Such a gap is also the main reason for the delay in the development of domestic computer commercial applications. After all, a limited number of topics can fully occupy the computing power of supercomputers. As a result, only the most important national projects can be allocated resources, and most researchers have no experience at all. Nowadays, with the supercomputing craze led by Beijing Airlines, this situation has been alleviated to a certain extent, but these commercial servers with average performance often appear powerless when facing complex problems. If you want to change people''s old ideas, you have to make people feel the benefits. At this time, Li Jie recalled in his mind that when he met Chang Haonan a few days ago, the latter also said that supercomputing or server businesses should not be sold, especially in related industries. Underdeveloped China must provide continuous services and promote supercomputer applications. ? At that time, he just thought that this idea was very good and would definitely improve some user stickiness. However, the Institute of Computing Technology currently did not have the ability to do this work, so he entrusted it to Chang Haonan. In exchange for the priority use of the future Dawning 2000 computer and the opening of investment license to Dawning Group. ?But he didnt expect that before he even had time to convene the board of directors, the other party had already produced results. Although there are thousands of fields that require supercomputers, numerical simulation and simulation are definitely one of the fields with the widest range of applications. A 20-fold improvement in efficiency is equivalent to narrowing the computing power gap between China and the United States from three orders of magnitude to one order of magnitude. ??Although it is not a direct overtake, at least you can see the opponent''s back. ??Moreover, almost all engineering disciplines can benefit from it. Comrade Chang Haonan, I have a question to ask. A steady voice cut through the noise in the conference room. Nearly everyone turned around and looked towards the end of the room. (End of this chapter) Chapter 365 Grab resources from the dream company! Chapter 365 Seize resources from Dream Company! The speaker is Song Jian. And such a big boss actually used a humble expression like "asking for advice". Even before asking a question, he raised his hand specifically. The noodles are full! In this case, other people in the conference room naturally returned to silence instantly. Song Jian reached out and adjusted the black-rimmed glasses on the bridge of his nose: "Xiao Chang, I probably understand the mesh generation algorithm you just introduced. It requires a large-scale model surface mesh as input, and ensures that the surface mesh of the generated tetrahedral mesh is consistent with the input mesh. Highly consistent. ??Although he is not an expert in the field of numerical calculation, he obviously has a profound theoretical foundation after working in the field of control for many years. It is not difficult to just understand this introduction. Thats right. So, for larger-scale projects, will this process take up too much memory, causing the program to be unable to run normally? ?Chang Haonan wanted to say a good question at this time. But considering Song Jians age and status, he finally held back. ?In this era, many so-called "supercomputers" only have 4-8G of memory, which is actually unable to withstand high computing intensity. ??Furthermore, it does not mean that if you slow down a program that requires 8G of memory by four times, it can be used normally on a computer with 2G of memory. For a specific algorithm, simply reducing the calculation speed will not significantly reduce the memory usage. But Chang Haonan has naturally considered this issue. "That''s right. It will be mentioned in detail in the document I sent to the research group responsible for this module. When it comes to specific program writing, a multi-level regional decomposition strategy will be used to ensure the parallel efficiency of the method. Specifically, That is to say, the first level of regional decomposition uses planes to divide three-dimensional areas, and the second level uses straight lines to divide two-dimensional areas. Both parts are performed recursively and will be assigned to different processors. " "Judging from the results of my previous tests, for a supercomputer or server with 8G of memory, provided that the CPU concurrency capability is sufficient, it can handle a grid number of billions of units. As for more complex structures, , you need to wait until the trial version of the software is completed before officially testing it. "In addition, for computers with insufficient processors, we will consider providing a downgraded version. Of course, for commercial reasons, this version may be named open version or educational version. Its efficiency is probably that of the full-featured version. It is about one-fifth of the total, but it is still far more than similar products currently on the market such as OpenCASCADE Technology, and it also has some functions that the latter does not have. " And when the commercial version of the software is released in the future, we will also selectively open purchase rights according to different customer levels. After this clear explanation, Song Jian nodded with satisfaction: Okay, I have no questions. ?After two hours of high-density information, most of the people at the scene were already quite exhausted, and the effect would not be good if they continued forcefully, so Chang Haonan directly announced a tea break. ?Of course, due to limited conditions, there are no fruits and snacks. Really only tea is provided. ?However, under the current situation, no one is in the mood to eat and drink. Especially the groups assigned to work on the grid generation module started discussions on the spot with the materials Chang Haonan sent them. ?Just like taking classes in college, people will naturally come to Chang Haonan directly. For example, Yao Mengna and Xu Yang. The two of them still dont have much psychological baggage. Chang Gong, no, Director Chang, Meng Na just put forward an idea. I briefly verified it and I think it seems feasible. The latter turned his head in surprise and looked at Xu Yang and Yao Mengna standing side by side. It seems that the relationship between them has become much better since they came back from Haojing this time... Junior...junior brother, its like this. When I was at 603, I also participated in a project to improve the turboprop engines propeller adaptation. Chang Haonan thought for a while and felt that what Yao Mengna was talking about should be an improved version of the Y8. However, considering that not all people in the conference room were from the aviation system, he did not specify the specific model. ??The original Y8 used a four-blade propeller that was as mediocre and unspectacular as the An-12. By the 1990s, it had completely fallen behind the times in terms of propulsion efficiency and noise control. So in the original timeline, both the Y8 III platform and the Y9 platform were equipped with updated 6-blade propellers. Although the current development of Yun 8 has been slightly deviated due to Chang Haonan''s intervention at the end of last year, the specific propeller upgrade should not be much different. Uh... are you encountering difficulties? Thats not true. Although I am not as capable as you two, I can still do this kind of small work. Yao Mengna shook her head angrily. "I suddenly thought after listening to you just mentioned again the idea of ??converting triangles into pseudo-quadrilaterals. Is it possible to use real quadrilaterals or hexahedral meshes in the process of generating structured meshes? grid?" "For example, in the process of designing a new propeller this time, we used a large number of non-isotropic rational B-splines and T-splines. In this scenario, the quadrilateral grid has a tensor product structure suitable for spline fitting. It is easier to obtain tensor product patches than to obtain Bostain/Bezier bases based on triangular meshes, so it should be more suitable for modeling higher-order surfaces. Immediately afterwards, Xu Yang placed a notebook with a page of calculations on it in front of Chang Haonan and continued to add: "After she told me about this idea, I did a simple calculation and found that it should be possible to accurately process the quadrilateral mesh through a multi-point flux finite element method based on the lowest-order Brezzi-Douglas-Marini space. The following work I want to establish the theoretical analysis of velocity superconvergence of this method on h^2-consistent quadrilateral grids, but this is not an area I am particularly good at, so I want to see if you have any ideas. " ??The calculation process written by Xu Yang is the same as the program Chang Haonan would write when he was just reborn, with one emphasis on conciseness and conciseness. It might not be possible for another person to understand. Fortunately, Chang Haonan''s current theoretical level is enough to skip some of the less important parts in the middle. "Forget it, you should take this book first. Anyway, our top priority is to build the software framework according to your current thinking. The problem of the quadrilateral grid should be a matter of the subsequent product iterative upgrade process. It is not very important yet. Its urgent. Its not too late to tell me when you have an idea. Xu Yang looked at Chang Haonan who was bowing his head in thought. He also knew that problems in the field of computational mathematics were mainly based on sudden inspiration, so he couldnt rush it at all. So I prepared to take Yao Mengna back to her seat. In fact, even the grid processing method she proposed is completely new to the field of numerical analysis. Generally speaking, this takes more time. Why do large papers in the field of mathematics often take several months or even more than a year to be reviewed? Because the various new concepts and theories proposed in it are often enough for reviewers to understand for a while. ?Sometimes all the reviewers can''t understand it, but they can''t falsify it, so they can only put it aside for the time being. However, Chang Haonan called them directly from behind: Wait, wait, wait Although the quadrilateral grid matter will indeed have to wait until later, I still have some ideas about your theoretical proof problem. You understand now? ?Xu Yang turned around suddenly, his face full of surprise. Its okay, because I have studied the multi-point flux approximation method, so I know a little bit about it, but its not a zero-level foundation. Chang Haonan directly picked up the pen from the side: You can refer to the super-convergent idea analysis of hybrid finite elements. First, find the interpolation that infinitely approximates the exact solution in the finite element space, and establish the relationship between the interpolation and the exact solution, and then establish the relationship between the numerical solution and the interpolation..." At the same time, at the back of the conference room, Song Jian patted Li Jie on the shoulder and motioned for the latter to follow him out. Under the guidance of several security guards, the two came to a secluded and uninhabited place nearby. Li Jie, what do you think of the prospects of Comrade Xiao Changs project team, including the company he will establish later? Unlimited. Li Jie answered almost without thinking: Not only is he an epoch-making leader in technology, but more importantly, I think Comrade Chang Haonan has a very strong ability to lead the overall situation. Such an evaluation even far exceeded Song Jian''s own expectations, so he became interested instantly: Oh? How do you say it? Following that, Li Jie roughly described the situation when Chang Haonan met with him a few days ago. Its a bit interesting ??When he heard Chang Haonan express his hope to indirectly promote the application and development of domestic high-performance servers and supercomputers through his work, Song Jian also showed an unexpected expression. No wonder Lao Ding attaches so much importance to it and refuses to let go... ??The voice of the second half of the sentence was very low, and Li Jie couldn''t hear it clearly for a while: Uh... Director Song, what did you just say? Oh, nothing. Song Jian waved his hand, then changed the subject and asked quite seriously: Comrade Li Jie, what do you think of the reform of the Institute of Computing Technology in recent years? ?This somewhat sensitive question made Li Jie not sure how to answer it for a while. Since about four years ago, the Academy of Sciences has piloted an enterprise-institution joint approach to entrust the computing institute to the management of Dream Company. This is why the general manager of Dream Company can currently serve as the director of the Institute of Computing. There are only two of us here, you can say whatever you want without any psychological baggage. "this" ?Li Jie hesitated for a moment. Some things are definitely not easy to say in public. But now there are only two of us, Song Jian and myself, so it doesnt hurt to reveal more: Director Song, to be honest, Im not very optimistic about it. "When we are entrusted to Dream Company, it seems that the relationship between the two is closer, but in fact it has little impact on daily work. The funds for the three major projects in the institute still come from state appropriations, regardless of where Dream is. He was not very interested in our technology development or product promotion. Instead, he was very interested in Shuguang Group. He even tested my tone and asked if the vice presidents of both parties could concurrently serve as the deputy general managers of the other company. " And you know, because of Academician Nis incident, Dream Company has been at the forefront recently, so we have actually taken on some unnecessary pressure..." "Um" ?Song Jian stood in front of a window with his back to Li Jie, so that the latter could not see his expression. But it was obviously thinking. After a long time, the former finally looked back: "After you go back this time, find a few trustworthy comrades who will be responsible for communicating with Xiao Chang. You must record all relevant information clearly and clearly. After a period of time, we will calculate the input-output ratio. Condition." ?This order made Li Jie''s eyes tremble suddenly. ?If nothing else happens, next year, that is, in 1998, the Academy of Sciences will make another large-scale organizational adjustment. Song Jian obviously has new ideas. (End of this chapter) Chapter 366 A big victory for the aviation industry! Chapter 366 A great victory for the aviation industry! ?Work meetings like this night were held for five consecutive days, which can be said to be full of intensity. Fortunately, any group specifically responsible for writing program modules only needs to fully understand the theoretical knowledge and programming ideas related to its own tasks, and for other parts, it only needs to know the relevant concepts. Even so, many people still say they cant bear it. Chang Haonan understands this situation. After all, it is an objective reality that people have different abilities. ?In order to complete this ambitious project, he has already concentrated a lot of efforts within his reach, and it is really hard to ask for more. So I spent a few days later to open small stoves for people in need. After a lot of push and pull, the entire project team was finally put on the right track. As for Chang Haonan himself, who presides over every meeting, he has basically become a monster in the hearts of all participants. It is difficult to understand why one person, a person in his twenties, can specialize in so many fields. And also have the ability to coordinate and coordinate on the overall situation. Since then, a legend has emerged in the ranks of computer and software engineering in China. Of course, these are all things for later. For the person involved, Chang Haonan, his task is indeed the most arduous. He is not only responsible for completing the first part of the software, which is the dimensionality reduction method for nonlinear partial differential equations developed for strongly coupled multi-field problems, but also solves the problems that others have solved. Problems encountered during project development, and functional testing and debugging of programs submitted to oneself. Writing the program itself does not take too long for Chang Haonan, and an 8-hour working day is enough to complete it. After all, he had spent an unprecedented 1,500 "huge sums of money" to have the system directly give the results, and his work efficiency had naturally improved to a level that he himself could not believe. The problem lies in the last two parts. In this era, there was no high-speed Internet as developed as in later generations, allowing software developers to work on the same platform even if they were thousands of miles apart. If the network speed of the 64K international dedicated line was used to transmit code engineering files, it would probably cost more than half of the entire project team. Time to wait. So we can only engage in centralized development! ?At the same time, under the arrangement of Song Jian, the Chinese Academy of Sciences also provided strong support and authorized the project team with advanced application permissions for all Sugon series supercomputers. The priority at the document level is second only to the nuclear explosion simulation project launched after the last nuclear test on July 29, 1996. But considering that even simulating nuclear explosions cannot be done every day, it is actually the highest. So, nearly 200 people from the 30 research groups participating in the project were arranged by Chang Haonan in the scientific research buildings of the Supercomputing Center and the Computing Institute of Beihang University. ??Then every afternoon, a dedicated person from the Computing Institute will be sent to collect some problems and phased results that cannot be solved internally, and hand them over to Chang Haonan through a human-carrying hard drive, and then take back the feedback results from the previous day... It should be said that this is the first time since Chang Haonan''s rebirth that he has truly experienced what it means to "concentrate efforts to do big things". After all, the problems he solved before actually did not require the use of many resources. Most of the time, a factory-level unit could solve them. Although there was not much commotion this time, at the leadership level, it still involved the coordination of many departments such as the Science and Technology Commission, the National Science and Technology Commission, the Economic and Trade Commission, and the Planning Commission. ?It is not easy to turn on the green light all the way. In short, Chang Haonan hardly left home during this period, and his life was busy and fulfilling. Until July 16th. He received a call directly from the Commission of Science, Technology and Industry for National Defense, asking him to attend a meeting that night. And the special car to pick him up is already on the way. The call did not come from Ding Gaoheng or Huai Guomo himself, but from the office of the Science and Technology Commission. So this was no ordinary private meeting. ?It is naturally impossible for the other party to directly mention the topic of the meeting on the outside call, but since they were notified several hours in advance, it must be an emergency. Chang Haonan briefly recalled that he did not remember anything major that happened in mid-July 1997. He handed over some of the remaining work on hand today to Xu Yang, and informed the calculation office that there was no need to come over this afternoon. As the development progress continues to deepen, the ability level of the project team members and their understanding of the software itself have gradually increased. The problems sent to Chang Haonan every day and the bugs found in the software have been greatly reduced. A week ago, Chang Haonan wouldn''t have dared to put down half a day''s work like this.?????It had to explode the next day. ??When Chang Haonan rushed to the Science and Technology Committee, freshened up and put on a slightly more formal outfit and walked into the conference room, about half of the people were already sitting around the long conference table. He looked around calmly and found that he could only recognize Ding Gaoheng sitting in the first place, Huai Guomo in the first place on the left, and Liang Zhuoping, chairman of the Aviation Industry Corporation. There is no way. Although he almost found an independent office in the Science and Technology Commission, he has always been in direct contact with the two directors, one director and one deputy. For some of the middle-level cadres below... Sorry, Im not familiar with it. And judging from the way some of them were dressed, it seemed that they were not all members of the Committee of Science and Industry. Then he was called over by Ding Gaoheng. Is this Comrade Chang Haonan you mentioned to me before? ?Another person sitting at the main seat with Ding Gaoheng looked Chang Haonan up and down, and then extended his hand to him. State Economic and Trade Commission, Wang Yuzhong. Although it was the first time for Chang Haonan to see this person, he still had an impression of the name Ding Gaoheng once mentioned it to him when he just came back from Jiangcheng. Hello, Director Wang. ?Chang Haonans attitude is still very enthusiastic. After all, the 3 million yuan in funding he has now was approved by others. When facing the sponsor, it is not shameful to have a good attitude. Besides, if he really becomes the person in charge of a state-owned enterprise in the future, he will inevitably have to deal with the other party. Come, sit over here. Unexpectedly, Wang Yuzhong was more enthusiastic and directly pulled Chang Haonan to the first place on the right. That is, the location opposite Huai Guomo. Director Wang, is this...inappropriate? The location during meetings is very particular. The other party directly arranged Chang Haonan here, which even made him worry that he was flattering himself. ?However, Ding Gaoheng next to him also motioned to Chang Haonan to just sit down and sit down. "What''s inappropriate? To be honest, Comrade Xiao Chang played a much bigger role than me and Lao Ding in making this meeting possible!" ?Wang Yuzhong also explained. "So what is this meeting...about? The secretary didn''t say anything when he informed me." ?Chang Haonan is still a little curious. Hearing this question, the three people next to him and across from him all smiled. It seems that Xiao Chang has been busy with the project team recently and hasnt had time to read the news, right? Ding Gaoheng said as he took out a document that seemed to have dozens of pages from his briefcase and handed it to Chang Haonan: Look, this is a victory for the entire Chinese aviation industry, and it is also a victory for you! After speaking, he patted the latter on the shoulder. ?Chang Haonan took the information and turned to the first page. I was stunned for a moment at first, and then I was overjoyed Have NASA and the Department of Commerce...compromised? (End of this chapter) Chapter 368 Completely clear the way for regional airliners! Chapter 368 Completely clears the way for regional airliners! "this" Even Ding Gaoheng and Huai Guomo were a little surprised by Chang Haonan''s statement this time. After all, during the previous negotiations with Europe, it was the former who first proposed mutual recognition of regional aircraft airworthiness with the other party, which ultimately helped the entire Chinese aviation manufacturing industry open up a new situation. Why did the opinion turn into opposition when we got here to the National Aeronautics and Astronautics Administration? Chang Gong Even though everyone present was somewhat aware of Chang Haonans role in this matter, some people still couldnt help but want to refute. ?However, Ding Gaoheng raised his hand to stop him. Comrade Chang Haonan, tell me what you think? At this time, you can see the difference in the attitudes of people from different systems towards Chang Haonan. Ding Gaoheng''s eyes and tone were more solemn and questioning. ?Many experiences in the past have proven that Chang Haonan will not do anything aimless, since there must be sufficient reasons for saying so. ?Although Wang Yuzhong next to him was also very serious, he showed more curiosity. After all, his understanding of Chang Haonan basically came from indirect means such as other people''s narrations and reporting materials. "For us, JAA''s airworthiness certificate is a timely help, and even in the world, it is the first time it has been created from scratch. It is of great significance. For this reason, we have to make some technical and policy compromises. Its all worth it. But now that the FAA has come up with the same conditions, it can only be said to be the icing on the cake. Chang Haonan no longer felt nervous about such an occasion, so he just cleared his throat, took the microphone and began to speak: For the vast majority of markets around the world that do not have the conditions to conduct airworthiness certification independently, the airworthiness qualifications in Europe and the United States are almost the same, and they can easily help us enter the local market. From this perspective, Having another mutual recognition of airworthiness with the FAA will not bring us much commercial benefit. ?The clear explanation immediately convinced some people who were just in excitement. ?Of course, some people still have some thoughts about this: Butif this agreement can be reached, wouldnt it help our aviation products open up markets in the Americas in the future? In most countries in North and South America where the United States has an overwhelming influence, the FAA is indeed more convincing than the JAA. But it can only be said that people in this era are still too credulous in the free market. But the reality is that whether we obtain the FAAs airworthiness certificate or not, it is almost impossible for us to enter the American market. ?Chang Haonan shook his head slightly, and at the same time thought quickly about what reason to give. 1997 is not 2020. If we explain it from the perspective of trade barriers, the effect may not be good. After all, Americans these days are indeed promoting the process of globalization. In the context of this era, it would be difficult for Chang Haonan to convince himself that Americans would build a high wall more than 20 years later, let alone others. So in the end he decided to start with the aviation industry field that he was most familiar with: "Currently, the major companies in the world that produce regional aircraft, Bombardier and Embraer, are all in the Americas. In addition, their areas are vast and sparsely populated, have a large number of small settlements, and are relatively wealthy. Therefore, their regional aviation market has been growing since the 1970s. It has developed rapidly since the beginning and is now very saturated. For airlines such as Delta Air Lines, Continental Airlines, and Air Canada, the proportion of regional aircraft should exceed one-third. " "Even if policy factors such as exclusive supply are not taken into account, the profit margin of regional aircraft is relatively thin. Airlines that are already accustomed to a certain enterprise''s aircraft will hardly retain another model of the same level as mainline aircraft. We There is no market space at all. So, the main markets we are targeting in the future should be Southeast Asia, Central and Northern Europe and the Mediterranean region. These markets are more suitable for the development of regional aviation, but so far there are still big market vacancies, especially for 90-100 seats. Level models are almost completely blank. ?After saying this, the atmosphere at the scene was obviously completely different from just now. "Moreover, for the United States, if the European side has already opened the door, continuing to carry out airworthiness blockade alone will not only not affect us, but may be detrimental to the FAA''s own authority. After all, the other side is now You should already know that our research level in the fields of aviation meteorology and flight safety is completely unique. ?Chang Haonan added another big chip at the end: So I guess, even if we dont add this content during the negotiations, the FAA will follow up and mutually recognize the airworthiness of our regional aircraft sooner or later. Their move is equivalent to a white wolf with nothing..." He mentioned without any trace the key to this comeback, which is Chinas world-leading aircraft anti-icing technology. Incidentally, it also enhanced his own persuasiveness - after all, it can be said that he was the one responsible for the research and development of this technology. ?At this time, participants from the Ministry of Foreign Trade and Economic Cooperation and the State Economic Commission, including Wang Yuzhong, also paid more attention to Chang Haonan. Just like the situation in 611. Hearing that someone is awesome is quite different from finding out that this person is really awesome. Comrade Chang Haonans opinions have given us a lot of inspiration..." ??Wang Yuzhong said, putting down the pen in his hand: "It seems that we are indeed a little conservative, and we should be able to put forward some conditions that are more beneficial to us!" ?At this time, many people noticed that he had actually written down a lot of things in the notebook in front of him. ?This made some comrades on the Economic Committee suddenly feel a little panic- ?Just now, many people were only listening to Chang Haonan''s speech and did not pay attention to Wang Yuzhong''s actions. ? It turns out that my boss took notes, but if you didnt take them down, do you still have some thoughts in your heart that you havent said out loud? ?So they all picked up their pens and began to sort out the several reasons that Chang Haonan had just summarized in their memory. Thats right, we should take a broader view. Ding Gaoheng also nodded in agreement: "In this case, I think maybe we can gradually increase the upper limit of FAA''s airworthiness certification slightly? In this way, when we go to talk to Europe about expanding the scope of airworthiness certification in the future, we can have one more card in our hand. Good to fight. In this conference room, Chang Haonan was undoubtedly the most professional person in the aviation field, so everyone turned their attention to him. "Of course there is no problem with the sausage-slicing tactic. Boeing''s main products starting from this year are the 737-700 and 737-800, so we should be able to increase the psychological expectation of the negotiation to 130 seats or 65 tons. Of course, we can raise it at the beginning. Its slightly higher, leaving some room for bargaining. In fact, this idea is somewhat similar to Chinas negotiation strategy when it introduced high-speed rail. Its just that the focus is not on price, but on the scope of mutual recognition of airworthiness. It would be best if the JAA and FAA could compete in this area. ??For a highly sensitive matter such as mutual recognition of airworthiness, it is still relatively difficult to get it right in one step. But boiling a frog in warm water is much easier. On the other hand, Chang Haonan also knows that the regional aircraft that will dominate the market in the future will actually be "quasi-mainline" models like the Airbus A220. Comfort and flight performance are benchmarked against trunk lines, but operating costs and airport requirements are benchmarked against branch lines. ??The C808 currently under planning, which is the domestic version of the Tu 334, just meets this requirement. Therefore, it is better to take advantage of this opportunity to completely clear the obstacles for the development of domestic regional aircraft in the next few years. ?Chang Haonan, after agreeing with Ding Gaohengs opinion, continued to add: In addition, I have another idea, but it requires comrades from the Economic Commission and the Ministry of Foreign Trade and Economic Cooperation to carefully consider the feasibility. Can you try to ask the United States to agree to increase my countrys tariff ceiling on aviation industry products from the currently determined 6% to a level of 15%-20%? As soon as these words came out, there was a sound of inhalation all around. (End of this chapter) Chapter 369 Feel proud! Chapter 369 Feel proud! Traditionally speaking, if an independent country wants to change its own tariffs, it is a completely internal matter that outsiders cannot interfere with. At least not directly involved. But the situation at this time is rather special. China is actively seeking to join the WTO and has completed most of the necessary negotiations. The only remaining obstacle on this road is the United States. Although the attitude of the White House has changed, anyone with a discerning eye can see that China''s accession to the WTO has been basically finalized. It is nothing more than some specific conditions and details, and there is still suspense about the sooner or later it will join. But for both parties, the most intense game has just begun. ?With the size of these two countries, even the slightest favorable change in the conditions for final accession to the WTO will produce huge benefits in the final implementation, so every detail must be paid attention to. The issue of tariffs will naturally become the focus. Under normal circumstances, such a thing as triple the single-digit tariff would not be raised at all. Thats outrageous. After all, one of the purposes of the WTO is to reduce tariffs and non-tariff trade barriers among members. But now that the stock prices of Boeing and McDonnell Douglas have plummeted, they will not care about these small things as much as they did in the past. This can be seen from the outrageous agreement they reached with the EU. Although the tariff ceiling of 15%-20% is outrageous, compared with the overbearing clause that cannot sign an exclusive supply agreement within ten years, it is completely sprinkled with water. Chang Haonan dared to propose this idea, but he was actually quite confident in his heart. In fact, in the last life, the Boeing-McDonnell Douglas merger was a bad debt. Although there are countless high-sounding reasons on the surface, the essence is that executives from both sides are coercing a ruthless job like NASA and the Department of Commerce for their own selfish interests (not even shareholders or companies). Before they announced the merger, they did not even consider the impact if someone intervened. Let alone come up with a plan. After all, we are Americans who have just ended the Cold War and are at the peak of our national power. It is normal to have this mentality. As a result, the EU directly gave it a slap in the face. ? Airbus subsequent market performance exploded, largely due to the settlement terms reached with Boeing. And this is when China has no side at all and has not set up any obstacles. ??Now inspired by the cooperation between Europe and China, decent countries around the world are on the opposite side of Boeing, and the situation is obviously worse for the latter. Otherwise, there would not be a third item in the agreement that can be called freeing oneself. ?This content also existed in the previous life, but the authorization targets were only limited to companies within the EU. Now it is directly and completely open. ???If you dont seize this opportunity to beat up a drowned dog, then you are still a human being? Its just that he has not been involved in the trade field in the past, and actually does not have any educational background related to international trade. He is not suitable to be too strong and decisive like the aviation issue he just discussed. Thats why I used a tone of soliciting opinions. As soon as Chang Haonan finished speaking, Ding Gaoheng spoke immediately: "Raising tariffs on some aviation products is indeed conducive to the development of our country''s aviation manufacturing industry." Of course, it is not convenient for us at the Science and Technology Commission to express our position on matters related to trade cooperation. We should listen to the opinions of comrades in the economic and trade departments. Who can sit in this conference room and not be a human being? ?Sometimes, when others ask for your opinion, they are not really asking for opinions. Even for parallel departments at the same level, the weight of their voice is very different under different circumstances. You must know that although this is the area under the jurisdiction of the Ministry of Foreign Trade and Economic Cooperation, the ability to revitalize the situation in the Boeing-McDonnell Douglas merger was almost entirely based on the initial proposal of the Commission of Science, Technology and Industry for National Defense and the key core technologies developed under the leadership of Chang Haonan. ?Now that Chang Haonan has made his opinion clear, Ding Gaoheng said it was inconvenient, but his intention was obviously to stand behind the former. Don''t say you don''t support it, even if you hesitate, there will be big problems. Theres no problem with that. ??A person sitting diagonally across from Chang Haonan quickly expressed his position: "Of course, I can''t guarantee the final specific results here, but when we go back, we will inform the WTO negotiation delegation of this request, and the increase in the tariff ceiling on aviation products will definitely be implemented." When he came to him, he had already changed Chang Haonan''s suggestion into a requirement with great insight. Well, thats good. Ding Gaoheng touched his chin lightly and showed a satisfied expression, but then added: "The key is the complete machine. The import tariff of the complete machine must be high enough. If the parts can be shipped to us for assembly, the price can be lower. In addition, we still need to explain clearly to the EU that this is not aimed at them. , you can even sign an immunity agreement first to prevent Americans from interfering with it and sowing discord. ??Although China and the EU are in the same bed and are only cooperating on a temporary basis, at least nothing can go wrong during the negotiation process. Otherwise it will be bad for both parties. The representative from the Ministry of Foreign Trade and Economic Cooperation nodded quickly and took notes quickly. ??This meeting lasted until that night, and a late-night snack was even provided. ? Its just that the following content mainly involves the revision of the Anti-Unfair Competition Law and future implementation issues. For Chang Haonan and the Commission of Science, Technology and Industry for National Defense, it is no longer so important to pay attention to. After the meeting, Chang Haonan could not be let go directly. Instead, he went to Ding Gaoheng''s office to sit for a while. Xiao Chang, lets just put forward two conditions. Shouldnt we be considered at a disadvantage? ?Huai Guomo, who didn''t speak much at the meeting but focused on taking notes, flipped through the notebook in his hand and asked with some unfinished meaning. There is no other way, I have been suppressed for a long time, and it is really rare to have such an opportunity to take advantage. Its definitely not a loss. ?Chang Haonan is basically satisfied with the current result: "Increasing tariffs on imported complete aircraft is equivalent to encouraging Boeing to put part of the final assembly work in our new industrial park. Moreover, the biggest significance of this matter to us is not actually these specific things. " Boeings choice to negotiate with us is equivalent to announcing to the world that as long as it wants to conduct business activities in our country, even if the company is not registered in our country, it must still abide by our rules of conduct, including if similar incidents like this occur in the future. We can use this as a basis to unimpededly implement the principle of extraterritorial application of our countrys commercial laws. The significance of this in the commercial field is probably no less than that of fighting the United Nations Army! The rewards from the last event have been distributed. They were given to the two participants with the most likes and the three with the highest fan value. Each of them received 1,000 points. Take a look. (End of this chapter) Chapter 370 Guizhou Airlines’ new training aircraft Chapter 370 Guihangs new training aircraft After the conclusion of this negotiation with the United States, the localization of jetliners for Shanghai Airlines must be put on the agenda as soon as possible. Ding Gaoheng looked at the calendar on his desk, and then said to Huai Guomo: "I have read Tupolev''s plan, and it is very sincere. If the contract amount cannot be negotiated, then you can look for details on the technology transfer. Anyway, they are mainly short of money. It should be easier to relax in other aspects. The latter put aside the meeting minutes in his hand and nodded: "No problem. In fact, our communication with the drawing bureau has been quite smooth. The current focus of the negotiations is on the details of the technology transfer of the D436T1 engine. Motorsic Company and Zaporizhia Manufacturing Plant hope to occupy more of it. status, but Russias Ivchenko-Progress Company is unwilling to compromise. Hai Guomo is responsible for foreign technical exchanges and cooperation at the Science and Technology Commission level, and the workload this year has increased visibly. "The disintegration of the Soviet Union left a lot of bad debts to the countries after the separation. If this matter really continues to be entangled, I''m afraid it won''t be so easy to sort out. We don''t have time to wait for them to slowly argue. If necessary, we can give them both sides Apply some pressure." ?Since this year, the scope of affairs under the jurisdiction of the Science and Technology Commission has increased a lot, and the pressure on Ding Gaoheng has also increased accordingly. Especially in the civil aviation industry, the cake is too big and the conflicts involved are very complicated. Many eyes are staring at him. ?As long as things go on smoothly, if there are some setbacks in the middle, I''m afraid someone will add insult to injury. ?The safest way is to come up with some convincing results as soon as possible and directly block the mouths of those with bad intentions. Director Ding, Deputy Director Huai, I think these historical issues between them can be fully utilized. At this time, Chang Haonan, who was sitting next to him, also found a suitable opportunity to cut into the topic: Before the disintegration, Ermaos side, especially the east, was also a very important industrial base, especially the aviation industry was relatively developed, so they will definitely have many of the things we need. Now that the situation of Ermao is even worse, and the market itself is also small, there is bound to be a need to use technology in exchange for money, so we can use the conditions given by one side to negotiate with the other side..." In fact, if you look at it from the perspective of a traveler with hindsight, Ermao is not a good partner due to his continuous swings in stance and policies. Moreover, although he holds some key technologies, the completeness is generally too low. It''s okay to get the finished product back, but it''s still quite risky to engage in long-term cooperation. However, as a means of negotiation, it is definitely sufficient. The two people opposite naturally understood this set of logic, which was not too complicated. The move that Xiao Chang mentioned should have been called two peaches killing three soldiers in ancient times. Ding Gaoheng said and looked at Huai Guomo: "But Lao Huai, although the method is very good, it will test the level of negotiation operation. It is up to you to determine how to grasp this degree, but you must not mess it up for me." Compared with the departments responsible for external exchanges and cooperation, the talent of the Commission of Science, Technology and Industry for National Defense in this area is limited after all, especially as the transaction volume of orders and the impact of other levels behind the orders continue to increase, they were previously mobilized from the Aviation Technology Import and Export Corporation The manpower gradually appeared to be somewhat inadequate. After all, this process is indeed a bit too sudden. Just a year ago, China''s aviation technology import and export consisted of a very few cooperation projects with Russia and the export of some low-end (high cost-effective) fighter jets to third world countries. The quantities were very small and the negotiation process was simple. Similar to buying vegetables at the wet market, it doesnt require many hands at all. As a result, people are now needed almost everywhere. ?For example, who would have thought that China would have the opportunity to achieve in-depth aviation technology exchanges with Europe, and would push the two behemoths Boeing and FAA to where they are now. By the way, Xiao Chang, there is one more thing. After the civil aviation matter came to an end, Ding Gaoheng lowered his head and took out a file bag from the drawer under his desk: "Guizhou Airlines submitted a model application, saying that in the process of technical verification for Project 10, they used some results to make some improvements to the current JJ-7 and create a new training aircraft. You Take a look." ?Chang Haonan took the file bag. He naturally knows this matter. Or rather, he pushed it with his own hands. ?However, the efficiency of the other party is indeed good. It has only been about five months, and the project materials have been submitted without any serious foreign aid. "Although it is said to be an improvement of the JJ-7, I can''t see any traces of the original model except for the tail part, which still has a slight trace of the J-7. In this case, it must be considered a new model. " Ding Gaoheng half lay back on the chair and scratched his head in distress: "The approval of new model projects is not something that our Science and Technology Commission can decide on its own, so the suggestion Liang Zhuoping gave them was that it would be best to come up with a more complete design, especially for the specific performance of the aircraft. We need to have a more specific expectation to make customers aware of their needs for this new aircraft." Chang Haonan took out two stacks of information that were not too thick and quickly read through them. The general idea is indeed similar to what he said at the beginning of this year. Lets start with a technically conservative version, and then slowly change it later. But its not just a simple reproduction. Also added some details that he had not mentioned at the time. For example, additional drag reduction treatment was performed on the outer edge of the wing, the ventral fin was completely eliminated, a larger vertical fin was replaced, and a long fuel tank was added to the back of the fuselage. In short, it can be seen that the subjective initiative is still very strong. Its just that there is still some lack of enthusiasm in painting technology, and the advantages of several key core technologies such as full-authority digital electronic control, large side slats and DSI air intakes are not fully demonstrated. ?Of course this cannot be blamed on Guihang. They have no experience in approving projects for new models before, so the JJ-7 was transferred from Rongcheng. Being able to figure out the design plan within this period of time actually exceeded expectations. "This aircraft... of course has enough potential, and when I communicated with the pilots before, they did feedback that our army seriously lacks suitable high-level trainer aircraft. I have even flown the JJ-7 aircraft once. Not to mention, the view is very bad. Chang Haonan originally helped Guizhou Airlines develop this model. Firstly, the military had a real need for advanced training aircraft. Secondly, he also wanted to help Guizhou Airlines, which had the most difficult conditions, solve the most basic survival problems. ?Although Guihang in the previous life finally managed to survive in the new century, it was not bitter enough to be appreciated by outsiders... Moving Guihang directly from the mountains is of course a once and for all solution. ??But when we were engaged in the third-line construction, it was the local folks who supported the aviation system and pulled together several manufacturing plants and research institutes. Now it is really not easy for you to just slap your **** and leave. A large-scale aviation manufacturing enterprise is also a very important resource for Guizhou Province, which is not economically developed. What Guihang means is that it wants to bring the relevant technical information of this model to the capital in the near future and find experts to help refine the design plan. After thinking about it, I think you are better at this aspect. ?Seeing that Chang Haonan had finished reading the information, Ding Gaoheng continued: But I think you must have been busy with your project team some time ago, so I didnt let Liang Zhuoping contact you directly. I left it in my hands first. I just happened to have a meeting today before I remembered it again. "This matter will be done according to your schedule. When you are busy for a while, and you have time, you can notify them to come over." You really dont have to wait too long. Chang Haonan gathered the scattered information and put it back into the portfolio: "The basic framework of our software will be basically completed in about half a month. Although there is still a lot of finishing work to be done later, the basic functions, especially the basic functions of force-thermal coupling, are in place. It''s just right. I was also thinking about finding some project to conduct application testing, but they came to save me trouble. " Then I ask them to come over at the end of the month? Ding Gaoheng did not show much surprise at this time point. On the one hand, his resistance in this aspect is relatively high, and on the other hand, he lacks intuitive understanding of the complexity of writing modern commercial software. You must know that after Li Jie saw the work efficiency of the project team with his own eyes, he went directly to Beijing Hang University and used the position of chairman of Shuguang Group as a condition. He hoped that Chang Haonan could share his parallel modular program development method. ? ? Then after spending half an hour listening to the latters working mode in detail, I was deeply shocked and left at the speed of light It doesnt have to be the end of the month, just another week or so. Its not a complicated task. With me as a developer, I dont have to wait until the basic framework is completely completed. ?Chang Haonan stood up and put the file bag back on Ding Gaoheng''s desk. (End of this chapter) Chapter 371 Test your skills Chapter 371: Test your skills Somewhat beyond Chang Haonan''s expectation was that besides Gui Hang, who was completely caught by chance, there were also people who moved equally fast. Just three days after the three-department joint meeting, he received a very polite application letter in his office at Beijing Airlines. Sent via military special line. The letters came from Jinling University of Science and Technology and the General Armament Department, which had just been established a few months ago. The sender who finally signed the letter was named Rui Xiaoting. Actually, he did it half-heartedly. Because the content is to invite Chang Haonan to provide theoretical and numerical calculation consultation on a "multi-body system launch dynamics problem". Its still the kind that pays consulting fees. There is no direct mention of the new software Chang Haonan is writing. ??However, judging from the feedback from the other party on paper, it should involve the joint application of the transfer matrix method and the finite element method of discrete time in a controlled system. Although the transfer matrix method is not directly included in the database, Chang Haonan considered when designing the software that some unpopular directions may have some calculation methods that are not universal, so several custom interfaces were specially set aside. . As long as users have the corresponding algorithm design and programming capabilities, they can add their own simulation methods to the software. And can be used in conjunction with existing variable discretization or variable separation methods in the software. So this is exactly what his current research direction can solve. Even more suitable than the advanced trainer aircraft from Guiyang Airlines. After all, the latter is actually no challenge to Chang Haonan. Even without the new software at hand, he can still rely on old methods and experience to solve it. As for the specific projects behind the other party''s question... ??Although the launch dynamics of the multi-body system is a rather unclear statement, considering the nature of Jinling University of Science and Technology and the rise of another General Armament Department, the result is actually not difficult to guess. Generally speaking, it is inseparable from rockets or missiles. So after a moment of thinking, he decided to let the other party come over first so that he could understand the situation face to face. ?Mainly because of the rapid progress of his own work at hand with the help of Xu Yang and other key figures in the computing institute, it has reached the point where he has to stop and wait for others. As a counterpart in the military industry, the other party also showed a considerable degree of vigor and resoluteness. Two days after the reply was sent, Professor Rui Xiaoting brought a person who looked like a student to the supercomputing center of Beijing Hang University. After meeting, this time, Chang Haonan was a little surprised. ? Judging from the content of the initial application letter, the sender should be the person in charge of an entire equipment type, not a specific model. Generally speaking, those who can secure this position must be big bosses with sufficient qualifications and levels. But the person in front of me looks quite young, in his thirties or less than forty years old at most. Excluding Chang Haonan himself, who is a cheater, he can definitely be regarded as a young talent. And Rui Xiaoting had actually done his homework before writing the application letter. Although he still suffered some psychological shock when he saw the real person, he was mentally prepared after all. Hello Director Chang, thank you very much for accepting our application. "After I saw your letter, Professor Rui, I was looking forward to meeting you soon, but I didn''t expect you to move so quickly." The two shook hands tightly and exchanged a few polite words for just meeting. Then they sat down on the two sofas in the reception room of the supercomputing center. Well, theres nothing I can do about it. Time is tight and the tasks are heavy. Party A is urging me urgently, otherwise I wouldnt come here on a Saturday afternoon to disturb your rest. ??Rui Xiaoting said, taking out a laptop from the bag behind him and placing it on the table. After turning it on, he turned the screen towards Chang Haonan: Let me make a long story short first and introduce the specific content of our topic. There are some things that are not convenient to write down in writing. Im guessing, maybe a multiple rocket launcher? ?Chang Haonan looked at the Windows system that was reading the article and expressed his previous guess. Computers in this era are more user-friendly and allow users sufficient time for communication. ?This made Rui Xiaoting express a little surprise for the first time: Yes, it seems that Director Chang is also involved in the field of multi-body dynamics? "Well, from the perspective of numerical calculation, it has some similarities with the problems I studied before. Of course, if you really want to say it, it is definitely not as good as experts in the field like you." Chang Haonan, who confirmed his guess, was not prepared to steal the spotlight today. He just wanted to verify the efficiency of his software when facing real problems. Its good if you understand, it saves me the most troublesome part. Rui Xiaoting sighed softly when he said this: When many people hear that we are researching artillery equipment, they feel that the technical content is not high. As a result, we receive very little funding, and our scientific research priorities are not at the top. To be honest, before I sent the application letter this time, I didnt expect to receive a response soon. As a result, I received a call from the General Armament Department the next day, asking us to fly to Beijing to meet you immediately. Chang Haonan, who has been engaged in aviation for his whole life, has never had such an experience. He really didnt feel the same way, so he had to change the direction of the topic slightly: Rocket launchers are different from ordinary artillery equipment. The technology is very difficult. Especially for long-range rocket launchers, the design difficulty is probably no lower than that of ordinary tactical missiles. Perhaps long-range rocket launchers are somewhat similar to tactical ballistic missiles in terms of appearance and military use, but from an engineering perspective, they are two completely different pieces of equipment, and their performance optimization orientations are also very different. Hearing that Chang Haonan had such a view, Rui Xiaoting immediately became more energetic, and even felt as if Boya had finally met Ziqi: "Yes, yes, the long-range rocket has a high trajectory and even has to enter a section of the stratosphere. In addition, the projectile itself has to spin to maintain stability. The flight dynamics equation is extremely complicated, because continuous launch must also be taken into consideration. Due to the transient conditions of the launch tube and the interference between multiple rockets, the problem is much more complex than laymen imagine. When the two of them were chatting to this point, the computer finally started up. I wonder if Director Chang has heard of our countrys Guardian series of rocket launchers? The one that was successfully exported to Trkiye last year? Chang Haonan in this timeline actually had no contact with relevant information, but he had seen many reports in this regard before his rebirth. Yes, it was only after we proved that our products have the potential to earn foreign exchange through exports that we received more attention. Otherwise, we might not even have the opportunity to send you a letter to apply. ??Rui Xiaoting gestured to the graduate student who came with him next to him. The latter immediately took out a piece of paper material from the bag behind him and handed it to Chang Haonan. Appears to be a technical manual. Before coming, Xiao Li originally said that he might need to introduce the nature of our products in detail, so he brought something like this as a souvenir to you. Its really a technical manual. ?It''s a pity that Chang Haonan doesn''t have a real guy at hand for practical operation. "The topic we are studying now is to comprehensively upgrade the previous basic model, which is the Guardian 1, to create a long-range missile that is more advanced in performance and can even be used as a substitute for ballistic missiles for some small and medium-sized countries. Rocket launcher! (End of this chapter) Chapter 372 A long-range rocket launcher comparable to a tactical missile! Chapter 372: A long-range rocket launcher comparable to tactical missiles! So where are you now? Chang Haonan cant remember whether the Guardian series rocket launcher is a product of the weapons industry or the aerospace industry, but it has little to do with the aviation system. So he has limited knowledge about the subsequent development of this model. He only knows that it seems to have developed a rather large family of models. Rui Xiaoting did not answer immediately, but took the mouse and opened a file on the desktop. ? is a format that Chang Haonan is very familiar with. ?Engineering files of the classic finite element analysis software ABAQUS. ? It is also one of the targets that Chang Haonan targeted when designing his own software. After waiting for about two minutes, a three-dimensional structural model diagram that had been meshed was finally loaded. Now this is the model that was built when doing finite element analysis for the Guardian 1 rocket launcher, including the launch tube group, rockets, revolving disk, car body and the entire gun. Rui Xiaoting introduced to Chang Haonan while turning the pages: On this model, limited by the simulation level and computer computing power at the time, only the most basic launch dynamics and flight dynamics problems were solved. The final Defender 1 has achieved the goal of extending the range to 180km, and has also won the favor of some customers who urgently need medium and long-range deterrence capabilities. However, overall, this model is still far from the initial expectations. 180km should be very far, right? I remember there seems to be an international convention on the range limit of exported weapons? ?Chang Haonan is very sure that at least in the original timeline, the Guardian series was not equipped for our army''s own use. Yes, the range of exported weapons cannot exceed 300km. ?Rui Xiaoting nodded, then turned around and started rummaging in his briefcase: "But you are right. For the vast majority of customers, the range of the Guardian 1 is actually sufficient, so this time we are focusing on improving other parts, mainly accuracy and efficiency during salvo firing. " "Previously, in order to avoid the vibration and tail flame generated when large rockets were launched from affecting subsequent firings, we simply referred to the design methods of some ballistic missiles and limited the time interval between consecutive launches across the board. However, judging from the results, it was still a bit underestimated. The effect of initial disturbance on long-range ammunition is eliminated. For example, because the rocket launcher has a directional tube, there will be a locking force in the initial stage that acts on the directional button position of the projectile, which is not found in the missile system..." Okay, let me take a look ?Chang Haonan took the mouse from the side and opened the simulated log file from the same folder. It is naturally impossible to calculate such a complex multi-body dynamics problem on such a laptop. Presumably the other party also used the help of supercomputer at that time, and for a professional like him, even if he has no research on artillery engineering , but we can still see some valuable things from it. ?At this time, Rui Xiaoting had just taken out a mobile hard drive, which was considered a black technology in this era, from his bag, and was going to show Chang Haonan another simulation result Since the current storage capacity of a single hard disk is still very small, project files and simulation results cannot even be stored together. ?But when he turned around, he found that Chang Haonan had opened the running log directly and was staring at the screen intently. Director Chang, I have direct results, but you cant tell by looking at the log ?However, before he finished speaking, Chang Haonan pointed at a piece of content on the screen and said: In this precision design, the directional tube of the rocket launcher, and of course the rocket, should be treated as a rigid-flexible coupled multi-body system. If it is simply approximated as a pure rigid body, the simulation effect will definitely be greatly reduced. As the range and power of weapons continue to increase, the movement produced when ammunition is fired is also getting larger and larger. As in the past, each component of the weapon system is regarded as a rigid body, and then the product is made closer to a rigid body by increasing weight or improving strength. The method has become increasingly unfeasible, so elastic supports and flexible body dynamics have been gradually developed since the 1960s and 1970s. That is to say, it no longer pursues the absolute stability of the weapon system during the launch process (which is actually impossible to achieve), but uses high-precision vibration simulation and prediction to make the weapon stay in the vibration waveform every time it is launched. Possibly the same location, thus achieving relative consistency in the weapon system. In other words, although the weapons and equipment designed using this idea may look shaky when launched, the actual accuracy will be better and the weight will be much lighter. Typical examples are the BM21 rocket launcher and PKM general-purpose machine gun. Of course, Chang Haonan was able to understand this aspect because this idea was later expanded to the field of aerospace design. When designing the Defender 1, although the evolution of the launch frame from rigid support to elastic support was considered, the barrel coupling system was still approximated as a rigid body. Its reasonable, but not completely reasonable. ?Of course there is nothing we can do about it. The design work of Defender 1 began in the early 1990s, and as Rui Xiaoting said just now, artillery equipment does not have too many resources. It is already very awesome to be able to do it like this. Ah...ah? ?Rui Xiaoting''s hand holding the hard drive was frozen in mid-air. The conclusion itself is not surprising. Even the graduate student who came next to me can tell you a lot about this issue. In fact, this was exactly what he wanted to explain after taking out the mobile hard drive. But Chang Haonan pointed out the problem directly after looking through the logs for a few minutes without seeing any numerical calculation process! Who is this? What about the not as good as us experts in the field just mentioned? What''s worse? ?Rui Xiaoting''s reaction made Chang Haonan feel a little less confident: Uh...am I right? Yes, very true. The former silently stuffed the mobile hard drive back into his bag. Obviously the efficiency has improved a lot compared to the expectations before coming here, but I still have a very complicated mood. Why? Now that youve figured it out, lets get straight to the point. In order to solve the problem you just mentioned, I have specially developed a new numerical calculation method, temporarily called the multi-body system discrete time transfer matrix method, or MS-DT-TMM for short. "The specific idea is to linearize the dynamic equations of each component in the time domain, so that both spatial transfer and time iteration can be taken into account during analysis, and it is very suitable to be extended to rigid-flexible coupled plane motion problems. Compared to The classical transfer matrix method can only handle simple harmonic motion, MS... Well, my new method can analyze linear or nonlinear time-varying or time-invariant systems. "However, the limitations of using only this method are still very large, especially the elastic dynamics analysis of complex boundaries and complex shapes still relies on other numerical analysis methods, so I am here to ask you if there is any Possibly, multiple different computational mechanics methods can be jointly applied on the same platform? Of course its possible. Hearing this question, Chang Haonan laughed directly: Not only is it possible, I even have the tools. Get the information and follow me. (End of this chapter) Chapter 373 First user of new software! Chapter 373 The first user of the new software! When hearing this answer, Rui Xiaoting suddenly felt a sense of happiness. Its like coming home after being hungry for a long time, opening the door just in time to catch the dumplings just coming out of the pot. For a moment, he even felt that the other party had predicted his arrival in advance. Otherwise, how could he have made such full preparations? ?But he was quickly denied by himself. It is not an insistence on materialism. But he believes that he should not be that important... Actually, Professor Rui, if you had come here a week earlier, I really wouldnt have any good ideas. ?Chang Haonan led Rui Xiaoting and two others into the computer room. ?Similar to the Dawning 1000 of the Computing Institute, not everyone has access to the real server cabinets. Except for a few fixed maintenance engineers, everyone who enters has to personally approve the note from Chang Haonan. So the three people came to an operating computer room with several computers as usual. ?Most mobile hard disks in this era cannot be hot-swapped while the machine is powered on. You need to shut down the machine first and then plug it into the motherboard. ??While the computer was restarting, Chang Haonan took advantage of the situation and started Amway''s new software: "We have recently been developing a brand-new simulation tool. The core is a revolutionary dimensionality reduction method for strongly nonlinear partial differential equations, so it can be applied to multi-physics simulations under strong coupling. Although it is currently only a semi-finished product , but the more commonly used mechanical and thermal coupling modules have been almost developed. More importantly, I have specially reserved a highly customizable interface. Professionals like you can flexibly call your own numerical simulation methods according to your needs, and they can also be jointly applied with our preset algorithms..." Since this software will continue to operate in the future and compete with similar foreign competitors, the more users, the better. Its not just a matter of gains from market share. The information and data fed back by a large number of users is a huge wealth in itself. ? Considering that most domestic enterprises are still slightly deficient in R&D capabilities, research institutes and universities are obviously the focus of Chang Haonans next promotion. Using administrative orders to force promotion is of course an option, but it is also a double-edged sword. Besides, its not necessary. ?The advantage is too great, even face A can win. It really has such a function... ?Rui Xiaoting watched in disbelief as Chang Haonan opened a rather crude dialog box. Uh... we will provide a more complete graphical interactive interface in the future. Currently, because program encapsulation has not yet been implemented, we can only use command line statements for the time being. Chang Haonan looked at the graduate student next to him and said, "Are you kidding me?" and quickly explained. So...what should we do next? I have also brought the calculation code related to the discrete-time transfer matrix method of multi-body systems..." In the computer field, many things are actually counter-intuitive. The joint application of multiple methods is actually very simple on paper, and the complexity of the idea itself does not exceed the force problem in high school physics. It is to separate the research objects according to different characteristics, use appropriate methods to establish equations for each part, and finally solve them jointly. However, since commercial numerical analysis software itself was just in its infancy, in the late 1990s, no one had thought of adding it as a complete function. Its very simple, let me demonstrate it, and then you can try it yourself. Chang Haonan, who came back from the third decade of the 21st century, knows very well that at this time, he must not do everything himself, and do it all by himself. Instead, he must let users gain participation. Just take ?Chang Haonan thought for a moment and quickly continued: Take the support arm of the rocket launcher tube as an example. "The physical model of this system should be a small deformation Euler-Bernoulli beam 1, smooth column hinge 2, rigid body beam 3, smooth column hinge 4 and rigid body beam 5, among which No. 3 and No. 5 can be compared with No. 1 Large displacement movement occurs. Although the structure is simple, it just meets the requirements. " "Next, just divide the beam into four units to establish the finite element motion equation, and then combine it with the multi-body system... that is your new method to solve the system motion rules, and at the same time, use the classic fourth-order Runge-Kutt method to integrate the overall dynamics of the system The system can also obtain the system motion law, which is four independent equations, combined with the boundary conditions of the rigid beam 5..." ? ? ? "Finally, as long as these 11 algebraic equations are solved simultaneously, the dynamic response of the system can be obtained. " At the same time as he said this, Chang Haonan knocked on the Enter button in a very elegant manner. In fact, this step can also be done with a mouse click, but it is said that using the keyboard entirely can make the operator look more professional. At least thats how most TV dramas involving hackers will play out in the future. Although it can only be operated through the command line, for him, a core developer, it is still easy to use. The calculation results are quickly displayed on the screen in the form of numerical points. The same applies here. It is still a semi-finished product at present, so the data can only be output in character form. When it reaches the full version, it will be able to directly provide curve graphs. Of course, if data is needed, it can also be exported. ?In the field of human-computer interaction, Chang Haonan, who has led the thinking for more than 20 years, is not just boasting. He can definitely beat his software engineering colleagues around the world. Rui Xiaoting, who was watching from behind, also nodded repeatedly. He is actually 41 years old this year, slightly older than Chang Haonan expected. Researchers of this age have experienced situations where they need to write their own applications. Moreover, Chang Haonan has to spend time entering characters after each sentence he explains, which is not the case. Keep up with the train of thought. It was just the graduate student who came with me who was suffering. At the beginning, I could still understand the two steps, but later on, I gradually developed towards listening to the Book of Heaven. ?Looking to the side, I found that my teacher was concentrating on it, so I had to sigh and thought about asking again when I got back. How about...Ill give it a try? ?Looking at the rows of data displayed one after another on the screen, Rui Xiaoting felt his hands itching unbearably. Chang Haonan looked at the other party''s expression and was almost certain that he should be able to get his first customer. Okay, if you have anything you dont understand, you can ask me. Then he stood up and gave his seat to the other party. Then he added: "By the way, I just listed the six-degree-of-freedom rocket external ballistic equations for you. You can just call them when the time comes." "Um?" ?Rui Xiaoting briefly recalled it and realized that he didnt seem to have missed any steps just now: "Where?" Wait a minute, it will be out soon. As soon as Chang Haonan finished speaking, a long list of equations was displayed on the screen. ?Rui Xiaoting, who was sitting in front of the computer, felt that his hands were a little numb. ?His discrete-time transfer matrix method for multi-body systems is special in principle, so it is not necessary to establish the overall system dynamics equations. But it is still needed when used in conjunction with other dynamic systems. ?This wave can be said to have saved a lot of work without anyone noticing. He felt defeated. So, Director Chang. Rui Xiaoting turned his head and asked: If I want to continue using it after I go back, how can I obtain the permission to use this software? (End of this chapter) Chapter 374 Box type long-range rocket launcher Chapter 374 Box-type long-range rocket launcher Chang Haonan cleared his throat: About next month, the software will officially release the first trial version. At that time, as long as you submit a trial application through official channels, you will be eligible to use the trial version. In the public testing phase, the software is completely free, but after the official version is released, annual licensing fees will be charged based on different user levels and versions. ?This approach has been proven effective by countless Internet companies in the future. Use low prices or free services to cultivate user habits first, and then start charging after capturing enough market share. Although Chang Haonan does not develop software to make quick money from leeks, the principle is similar after all. Then this official channel The routines that people of this era have seen are relatively simple, and Rui Xiaoting was naturally attracted to them. ? He ??even directly ignored the part about "authorization fees" that followed. Besides, he didnt pay for it himself anyway. When you go back, I can give you an activation code. When the trial version comes out, I will send you a box of CDs by mail. Just enter the activation code and you can use it. As for the subsequent authorization, as long as each organization pays a fee, then everyone in the entire organization can use it, just like the currently commonly used AutoCAD. The main users of commercial software are not individuals. The authorization threshold does not lie in the act of obtaining the software itself, but in the commercial activities carried out by users using the software. Therefore, there is basically no need to consider the issue of piracy. In other words, for example, if Jinling University of Science and Technology purchased a license from Chang Haonan, then its main research and commercial activities can legally use this software. As to the specifics of whether the software installed in each persons computer is genuine or pirated. Not important. ?? And having said that, it is only 1997, and it will take another two years for Judong to allow pirated versions of Windows and Office to spread around the world in order to occupy the market. The domestic software copyright situation is actually much better than it was at the beginning of the 21st century. In addition, I know that there are many universities and research institutes in Jinling. If you can recommend our software to other brother units, you can also get corresponding discounts when getting licenses in the future. In fact, since Chang Haonan is currently leading a project team, which is still a scientific research institution, no specific sales principles have been determined. ?However, this did not stop him from continuing to refer to the promotion model of Internet products in his impression. ??Rui Xiaoting looked at Chang Haonan with a sincere face next to him, and felt that something was not right. But after thinking about it, I always feel that I will not suffer any loss: Okay, let me try it first. Soon, under the guidance of Chang Haonan, a new model was imported into the computer. It seems completely different from Guardian 1 Chang Haonan said as he looked at the six rectangular directional tubes on an 8*8 chassis launch vehicle in front of him. Even a layman can see the huge difference between the two. And why do you look more like a missile... After all, technology has advanced. Rui Xiaoting was making final fine-tuning on the model as he spoke: "The previous chassis was selected in 1992. No matter the load-bearing capacity, off-road performance or stability, it was not very satisfactory. Wanshan Special Vehicle is currently cooperating with the Minsk Automobile Factory and plans to start local production next year. For the transportation-erector-launcher chassis, we temporarily modeled it using the parameters of MAZ543 and then fine-tuned it later. ??Although the elastic support theory no longer requires the vehicle body to maintain absolute rigidity during the launch process, for the sake of firepower density and vehicle body life, the vibration amplitude and period cannot be too exaggerated. "As for the directional tube... In fact, this can be regarded as a launch box. The two launch boxes are a set, and each vehicle is equipped with three sets. This way, after the shooting, you don''t have to bother to reload, and put the new launch box prepared in advance. You can continue to fire the second round. According to our calculations, this can shorten the fire interval between the two rounds from about 30 minutes to less than 10 minutes. However, this function can only be realized by purchasing our specially designed reloading crane at the same time. " ?Chang Haonan suddenly felt that he had met his opponent. You still know a lot about bundling sales... Then he continued to add: Of course, if the customer is really short of money, they can also choose to use the original Iron Horse XC2200 chassis and the same directional tube as the Defender 1. The 8*8 TEL chassis is quite expensive. For most equipment using this type of chassis, the cost of the vehicle will generally account for half or more of the price of the entire system. And except for a few countries such as Damao or China, it is true that not all users have a particularly persistent pursuit of cross-country capabilities for long-range fire support. ?While the two were chatting, Rui Xiaoting had already completed the debugging and inspection of the model quickly. Well, what should I do next, copy the model, or draw it again? When talking about redrawing, his eyes glanced at the graduate student behind him who came with him. Bringing one more person here is not just for carrying bags. The latter only felt a chill spreading from the soles of his feet. Drawing a picture of this level of complexity on the spot No, you can just add a statement to call the program file in front. We have reserved interfaces for all common modeling software engineering files on the market, including SolidWorks, and you can directly import data. ?Chang Haonan still didnt know that his image was close to the savior in the heart of someone next to him. Is it so convenient? ?Rui Xiaoting quickly entered a sentence as instructed. As expected, a message indicating that the data was successfully called appeared on the screen. ?A few seconds later, a new dialog box popped up, which contained the modeling diagram of the new rocket launcher. In this era when even hardware versatility is poor, almost no one has considered the versatility of different software ?There are actually no technical obstacles, but in order to seize the market exclusively, some software developers will deliberately make their file formats different from similar competing products. It was **** for the engineering staff. ??Even if the underlying parametric logic is completely consistent, calling the design drawing from one software to another requires a rather complicated transcoding process. ? Even a very skilled person may take several hours to complete. If your luck is even worse, you may even have to redraw it. Now, he has completed all this in less than 5 minutes. The next step should be gridding As the progress continued, Rui Xiaoting became more and more proficient in operation. Uhwhy are there so many options here? A command line interface pops up on the screen, with 5 options appearing. The key is that he cant understand any of them. Oh, here are the 5 different meshing algorithms we preset. Chang Haonan explained: This model of yours is a bit big, and it may take up memory to generate at one time. You can split the directional tube, bogie and chassis into three parts and generate them separately, and then choose the second one. Can I just break it into three parts? ?Rui Xiaotings hands on the keyboard shook, leaving several irregular characters on the screen. You must know that when he did finite element analysis before, this step even required separately generating subdivided structures such as hydraulic outriggers, girders, and subframes. "If you find it troublesome, maybe... you can combine the bogie and the directional tube." ?Chang Haonan said in an uncertain tone. No, thats not what I meant Rui Xiaoting''s whole body was numb. It is easy to go from frugality to luxury, but it is difficult to go from luxury to frugality. ? Even if the software in front of you does not even have a serious graphical interface, the operation still needs to be carried out through the command line. ?But when I think about how I have to continue to suffer the torture of ABAQUS after I go back this time, I feel that the world is dark. ?So he made up his mind that when he returned to school, he would get the principal to get the authorization for this thing at all costs. What is money without money? Vulgar! (End of this chapter) Chapter 375 Eagle flying out of the mountains Chapter 375 The Eagle Flying from the Mountains After calming down a little, Rui Xiaoting followed Chang Haonan''s suggestion and divided the entire model into three parts, selected method 2 and hit the Enter key. ?Looking at the program execution log flashing across the screen, he breathed a sigh of relief and leaned back in his chair. Everything that happened this morning went much smoother than expected. ?Even makes people feel a slight sense of unreality. Just in time, the sunshine approaching noon shone in from the window and reflected on the faces of several people. Rui Xiaoting raised his head and looked at the clock on the wall next to him ?According to his experience, more than half of the computers in the school computer room display the UNIXTIME epoch time, which is January 1, 1970. Its a quarter past ten in the morning, just before dinner time. Director Chang, do you want to go out for a meal together? He asked Chang Haonan next to him: You have been so helpful this time, so you have to give me a chance to express my gratitude. When I came from the airport, I saw a nice restaurant on the road, and I came to treat you. Originally, Rui Xiaoting applied to the school for a mid-term business trip of 10-15 days before coming to the capital, and he specifically informed the finance department that it might be extended further, but judging from the current efficiency, it may not even be used for 10 days. Come on. Eat... dont be in a hurry, lets get down to business first. It wont be too late to go there later when you can run the full gun firing dynamics simulation. Of course we have to do business, but if we are idle now, we will be idle. No matter how we get gridded... At this point, Rui Xiaoting''s voice stopped abruptly. He noticed that the estimate of the number of meshes had been completed on the screen and the calculation of the coarse mesh had begun. According to his experience, this preparation process alone often takes one to two hours or even longer. And this has just passed... Five minutes? If estimated on a scale, it may take 30-40 minutes to complete the entire gridding process. Its really not enough to go out for a meal. ?But Rui Xiaoting is different now than before. He evolved. ?Rui Xiaoting made up his mind that he could no longer be surprised by trivial things. Otherwise, it would look like Grandma Liu entering the Grand View Garden. He himself doesn''t care, the main thing is that he can''t embarrass the school. ?Chang Haonan has already achieved his goal of Amway and did not continue to speak. ?However, in this tacit silence, there was a voice that seemed extremely harsh: Teacher Rui, why is the grid progress so fast? ??The graduate student who had been in a state of confusion just now finally came to a part that he could fully understand. Then he sighed like this almost subconsciously. ?For a moment, Rui Xiaoting regretted that in order not to delay the progress of the project, he did not bring over the most stable old doctor in the research team. Half an hour later, almost the same as the time Rui Xiaoting had just estimated, the program gave a prompt that "grid formation has been completed". Then... we can directly simulate the whole car, right? To be on the safe side, he made an additional confirmation. "That''s right, and I just deduced the multi-body... multi-body system discrete time transfer matrix method you imported. It should be used for natural frequency analysis of linear time-varying control systems. It just so happens that my software supports forced continuous iteration function, so you can even directly simulate the overall situation when the entire vehicle fires continuously, without having to calculate each shot individually. Multi-barreled rockets are used as continuous-fire weapons. During the launch process, the contact stiffness between the ground and the tire, as well as the mass and distribution of the pitching body, change with the number of rockets on the cradle. In particular, the mass of rockets is relatively large, and the mass and distribution of rocket launchers have changed significantly compared with empty loads and full loads. The impact of mass changes on the dynamic response of multiple launch rockets must be considered. In addition, for a weapon system under the elastic support theory, when the next round is fired, the vibration caused by the previous round has not completely stopped, which is equivalent to adding a new vibration to the original vibration characteristics. Characteristics, the further back the projectile sequence is, the greater the impact will be. Therefore, there will be a slight difference in the time interval between each two launches of the rocket launcher. There are also strict regulations on the launch sequence, which is not based on the directional tube. Arrange in order. In order to ensure the accuracy of the simulation results, it is often necessary to manually determine and calibrate the results after the calculation of a launch, and then iterate into the next launch. Chang Haonan solved this pain point. But for Rui Xiaoting, his first concern is another place: Director Chang, I wonder when you deduced this result? Just kidding, the three of them stayed together this morning. Just now, while I was waiting for the gridding, it took half an hour, which was enough to think about something. But why cant I figure it out ??The graduate student next to him blurted out, but the second half of the sentence was choked back by his mentor''s knife-like gaze. ?Rui Xiaoting said to himself that not only can you not figure it out, but I cant figure it out without using a computer to calculate it. Dont embarrass our school... It wasnt until the simulation process officially started that he gradually came back to his senses. For long-range rocket launchers, due to the limited number of directional tubes, the advantage of fully automatic iterative calculation is actually not great. At most, there is no need to send someone to watch in front of the computer. But as the cradle of almost all artillery systems in the country, Jinling University of Science and Technology has undertaken far more research and development projects than this. ? If nothing else, the small-caliber rapid-fire anti-aircraft gun currently under development has a rate of fire of up to 1,100 rounds per minute. If you manually iterate one by one, even typing out sparks on the keyboard will be almost meaningless. As for the multi-barreled close-in defense guns that the Navy urgently needs... Ahem. ?Thinking of this, Rui Xiaoting took out his notebook from his pocket, tore out a page from it, and quickly wrote down his office phone number and address: Chang Gong, Ill leave you a contact information. When the trial version comes out, be sure to notify me as soon as possible. ?He made up his mind that he could not just be embarrassed here, but also let others experience this feeling of broken heart when he went back. Chang Haonan took it, folded it and stuffed it into his wallet: No problem, I guarantee that your school will be one of the first trial customers. If necessary, I can also provide a video tutorial CD. Thank you very much. ?Rui Xiaoting still looks calm and calm on the surface: In addition, I think that after we get the trial version, we can hold a series of special lectures for Jinlings brother universities, which should have a good promotion effect. At the same time, in the Yunma factory in AS City, Guizhou Province. ? Sun Huizhong is checking the information for the last time before departure on the laptop in front of him. Behind him, parked was a full-size wooden model that had just been completed. Although other sister units have increasingly begun to increase the proportion of digital work in the design and even manufacturing processes, for Guihang, which has relatively limited conditions, many tasks still have to be completed using old methods. ?For example, they currently only have limited aerodynamic computing capabilities, so if they want to test the installation of various equipment inside the aircraft, they still have to build a wooden prototype. ??The aeronautical engineers who have joined their factory in recent years have basically improved rapidly in their woodworking skills, not to mention their ability to design aircraft. ?Of course it was not without its benefits. The furniture produced by Yunma Factory helped them get through the most difficult period from the late 1980s to the early 1990s. Compared with the JJ-7 originally produced by Guihang Airlines, this aircraft is much more advanced in terms of appearance. At least it is no longer the nose air intake. ? And thanks to the valuable nose space being freed up, the cockpit space has also been greatly released, especially the forward view of the rear seat trainer, which was so good that the pilots responsible for test-flying the JJ-7 in the factory repeatedly praised it. ?At this time, another man ran up to Sun Huizhong panting, took out two brown paper envelopes from his arms and handed them to him: The thick one is your travel expenses, and the thin one is the photo of the model. ? Lin Haijun, general manager of Guihang Airlines. Although his name contains the word "Navy", he has never seen the sea in his life. After graduating from Bingcheng Engineering University in his early years, just as the third-line construction was in full swing, he was assigned to the mountains of Qian Province. So thick? It doesnt cost so much, right? ? Sun Huizhong said as he opened a crack and took a look, only to find that there were a lot of change of 10 yuan or even 5 yuan inside. It feels very thick, but actually it doesnt cost much. The factory has finished distributing everyones basic living allowance this month, and there is really not much money left in the account. The visitor wiped the sweat from running on his forehead and looked a little embarrassed: Fortunately, the county is quite supportive of us and gave us some money, but its just a little too much change... Sun Huizhong''s face darkened after hearing this answer. ?His trip was almost responsible for the life and death of the entire group. If Guihang collapses, the cadres like them may be assigned to other places, and the worst they can do is be on the bench. But the workers in the factory, as well as the many industries surrounding Guihang in several surrounding counties and towns, are obviously It''s all bad and bad. The economy of Guizhou Province is not very developed to begin with, so I am afraid it cannot withstand such hardships. ?Lin Haijun looked at the aircraft design drawings on the computer screen in front of Sun Huizhong, and always felt that something was missing. ??If this model is successfully approved, it should be named Coach 9 according to the naming rules. But in the design stage of the manufacturer, it usually has its own internal code name. The current one is FTC2000. means a combat training aircraft produced by China and geared towards the 2000s. Future export models will also be called this. But this cold numerical number still seems to be almost meaningless. Let me tell you, Lao Sun, the design we come up with should have a nicer name, right? "Um" ?Sun Huizhong put down the mouse, lowered his head and walked back and forth for a few times. This plane took off from our mountain, so lets call it Mountain Eagle. (End of this chapter) Chapter 376 China Aerospace Engine Industry Conference! Chapter 376 China Aviation Engine Industry Conference! ??It was already two days later when Chang Haonan sent the satisfied Rui Xiaoting away. ?Of course, compared with the latters previous estimates, this can be called a great speed. You must know that the artillery equipment models that Nanjing University of Technology is currently responsible for include but are not limited to a certain type of self-propelled artillery, a certain type of long-range rocket launcher, a certain type of small-caliber self-propelled anti-aircraft gun, a certain type of wheeled anti-tank gun, and a certain type of wheeled grenade gun ?Although artillery equipment may not sound fancy, it is actually the backbone of army support units, similar to the status of tanks in assault units. However, with limited total investment in scientific research, it is almost impossible to promote so many models at the same time. Each research group naturally hopes to obtain more resources for the projects it is responsible for. As the director of the institute, Rui Xiaoting has been troubled by this kind of thing in recent years. But now, he vaguely felt that a door to a new world was standing in front of him. According to Chang Haonan''s timetable, the next step is to wait for Guizhou Airlines to send people over to perfect the design of the new advanced trainer aircraft. Because Rui Xiaoting jumped in the queue, the design idea of ??the new software has been proven correct, and there are at least no major problems with the work completed so far. Therefore, the higher education machine project does not have much value to Chang Haonan, and it is mainly based on the hope. Hold on to the spirit of helping our brother units. ?So taking advantage of his free time, he gradually turned his attention to the two projects that he had previously listed as priorities. That is, heavy-duty die forging presses, and third-generation turbofan engines. ??There has been no specific action before because sharpening the knife does not waste time chopping wood. Now the tools he has at hand have gradually matured and have passed relatively simple project verification. So, its time to try the knife. As for which one to choose first, there is nothing to worry about. Considering that the situation on Jiang Zhong''s side has not yet completely settled, it is not suitable to make too much noise. The natural thing is to start the aviation development first. After thinking about it for a while and talking to two academicians, Du Yishan and Liu Zhenxiang, Chang Haonan finally decided to call Ding Gaoheng. ? ? If it had been put aside before, even if he had this idea, the most he could do was contact the 606 Institute or 410 Factory, which he was familiar with, and then report it step by step. ?But now, the situation is very different. Although it is still unable to directly influence major policies, it still has some say in some technical directions in the aviation industry. ?Now Chang Haonan''s phone calls can even be made directly to Ding Gaoheng''s office without going through a transfer. The ringback tone only rang twice before the phone was picked up. "Xiao Chang, you called me suddenly early in the morning. What good news do you have?" ?Although he has been quite busy recently, Ding Gaoheng''s voice couldn''t help but relax after seeing that the caller was Chang Haonan. Most of the time, this means something happy has happened. I may disappoint Director Ding. There is no good news this time, but it will cause you some trouble. Oh? What are the instructions from our director? Ding Gaoheng asked in a slightly humorous tone. ?Of course, Chang Haonan couldnt really follow the other persons joke, but replied solemnly: I would like to ask for your approval to convene an aerospace engine industry conference in the near future that will only be attended by people within the aviation industry system. There was silence on the other side of the phone. It was obvious that Ding Gaoheng was also evaluating the matter. Chang Haonan has only submitted one of the two previous reports he wrote. Therefore, no one else knows the details of the idea of ??developing a third-generation high-thrust turbofan engine. Even Du Yishan and Liu Zhenxiang only have a rough understanding of some of the technical directions that Chang Haonan plans to focus on. What about being more specific? A few seconds later, Ding Gaoheng spoke again: "In the aviation system, there are many serious research institutes engaged in aviation power. During the third-line construction, at least one was assigned to each region. In addition to Shengjing, which is currently relatively powerful, Zhucheng, Rongcheng, and Jianning Places such as Bingcheng and Bingcheng all have certain industrial scales. How big are you planning to make this event? " The scale doesnt need to be very big, but I hope every company can send a representative. ?Chang Haonan took a deep breath, and then answered decisively. If he just wanted to get the turbofan 10 out, he wouldn''t have to spend so much effort. Just contact Shengjing directly and coordinate the work. At most, communicate with Fucheng 624 Office. Its not that he looks down on his brother units. Its actually that Chinas aviation power research and development is weak at this time. The few combat-effective forces are in Shengjing. When it comes to projects like the third-generation promotion, there is not much help that others can provide. , but also very limited. The reason why he wanted to hold this meeting was because he hoped to integrate the originally dispersed aviation development research and development forces. A single beautiful branch is not spring, but a hundred flowers blooming together fills the garden. Although China is not very strong in aircraft design and manufacturing, it still has some foundation. As long as Chang Haonan helps in some key technical aspects, even an OEM with relatively weak technology like Guizhou Airlines can barely produce a senior instructor. The opportunity is coming. As long as there are models under development, there is a way to quickly train the talent team. ?For example, Lin Shikuan, brought out by Chang Haonan and Yao Mengna, is now almost becoming a big brother in the entire field of digital design and manufacturing in China. ??He doesn''t need to worry about it at all. However, in the field of aviation power, the situation is much more serious. It is no exaggeration to say that, except for 606 Institute/410 Factory and this pair, which barely have some experience in independent research and development (most of which are failures), the rest are really incapable of bringing... It can only be taught step by step. But now Chang Haonan has more than ten times more projects than a year ago, and he simply does not have enough energy to travel around to provide one-on-one tutoring in various places. There are not that many projects for everyone to practice separately. ?The official launch of Turbofan 10 alone will eat up more than half of the annual research budget in the field of aviation power. ?Furthermore, the aviation engine has not yet become independent, and theoretically it still needs to be used as a supporting device for the host model before it can be launched. In short, in the past one or two years, the Turbofan 10 should be the only aircraft engine model that starts from scratch. It is also the only seedling for practicing aviation power systems. It is best to allow other units to also have the opportunity to participate. Come in to learn from experience, and at the same time apply the experience to the improvement of existing models, and gradually accumulate scientific research strength. ?For example, Haojings turbofan 9, Jiannings turboprop 6 and turboshaft 8, and Bingchengs turboshaft 5 can all be beneficiaries of this process. ?After these achievements are gradually fed back to the military construction and the development of the aviation industry, the aviation power system will be able to have some confidence when it comes to "independently developing engines independent of aircraft models". If every family sends people to Beijing, the news will actually be quite big... The things Ding Gaoheng on the other end of the phone had to consider were obviously more macroscopic. In a place like Beijing, there are many non-technical factors that need to be considered. Hearing that the other party was hesitant about the meeting location, Chang Haonan quickly explained: Director Ding, this does not have to be opened in the capital, as long as you can approve it and arrange the venue. This shouldnt be a big problem. Ding Gaoheng also breathed a sigh of relief: "For more specific matters, come to the Science and Technology Commission for an interview. I will send a car to pick you up." (End of this chapter) Chapter 377 Concentrate your efforts and fight in the aviation development competition Chapter 377: Concentrate your strength for the aviation development battle Forty minutes later, Chang Haonan arrived at Ding Gaoheng''s office. ?Somewhat beyond his expectation, in addition to the latter himself, Liang Zhuoping, chairman of the Aviation Industry Corporation of China, was also there. Director Ding, Mr. Liang. Chang Haonan only met him once at the interview before participating in the August 3rd Project last year, but no matter what, he must still know the head of his own aviation industry. ?But it makes sense if you think about it carefully. After all, with his status, Ding Gaoheng cannot personally host a specific technical meeting. And Chang Haonan doesnt have that much energy to do administrative work. ?So when the conference is actually held, no matter where it is, Liang Zhuoping will definitely be responsible for the actual preparation work. Xiao Chang, sit down wherever you want. Ding Gaoheng is looking through a report in his hand. Judging from the cover, it seems to be about the aerospace engine industry. ?But Liang Zhuoping actually stood up and shook hands with Chang Haonan. Comrade Haonan, long time no see. On only the second meeting, the title has already changed. Although it sounds like there is not much difference, the meaning behind it is completely different. ?Liang Zhuoping can no longer regard Chang Haonan as a simple junior or subordinate. In fact, the former is also suffering in his heart at this time and cannot express it. You must know that when Chang Haonan was asked to participate in the August 3rd Project, he had contributed. But after all, I am not a professional technician, so I did not pay special attention to it later. After all, it was just in the beginning, and the frequency of the other partys name in the report on the August 3rd Project was not very high. As a result, by the time we realized something was wrong at the beginning of this year and finally reacted, it was already too late to try our best. Who would have thought that in only about half a year, people would directly build connections with Ding Gaoheng? ?So Liang Zhuoping felt a little embarrassed. In the field of scientific research, he is not an academician, nor is he even a leader such as a chief model engineer. Administratively, although he is the chairman of the Aviation Industry Corporation of China, the other party is not an employee of the Aviation Industry Corporation of China. Moreover, the relationship between him and Director Ding is unusual. It is not certain who can dominate whom. ?As for personal relationships, he is not like Yan Zhongcheng and Yang Fenghao, who took Chang Haonan with him when he first joined the 83rd Project. If you dont accompany me through the hard work, who will you be if I become successful? Liang Zhuoping still has this kind of self-knowledge. In short, the words "Comrade Xiao Chang" were stuck in my throat for a long time and I couldn''t say them out. Finally, I changed my name. ?Chang Haonan didn''t care about this. ?There is no harm in trying to equalize the status with Liang Zhuoping as much as possible. Its not that I have any opinion about this person. Rather, in his plan, in the future, all units responsible for aviation power under the Aviation Industry Corporation of China will be separated to establish a separate China Aviation Engine Group, which will inevitably affect Liang Zhuoping''s interests. ?Let the other party realize that they cannot fight against the general trend early, but can minimize the possibility of some unpleasantness when the time comes. Director Ding, after detailed research and consideration during this period, I have written a report on the development of the aerospace engine industry. Please read it. ?Chang Haonan took out a file bag from his bag and placed it on Ding Gaoheng''s desk. The latter picked up the file bag and paused in shock at the thickness of the contents inside, and then opened it quickly. Tell me briefly what you think about the aerospace engine industry conference. Chang Haonans report was mainly about technical feasibility demonstration and summarizing the development of domestic and foreign aerospace industry. It did not directly mention what was just said on the phone. I believe that the final shape of the turbojet 14 engine actually achieved the goal set by the high-promotion pre-research project in another form, which was to benchmark the F404 engine and provide technical reserves for my countrys self-developed turbofan engine. " The so-called high-promotion pre-research project was the first large-scale pre-research project organized and managed by system engineering in the aero-engine field launched in my country in 1980. After 15 years, a prototype was finally produced in January 1994. ??Although this prototype has achieved the converted flow rate target of 25kg/s on paper, in fact... In any case, in the project summary, the key part can only be written as training the talent team. This is also one of the many setbacks encountered in the process of promoting the third largest turbofan in my country. Its just that in todays timeline, the performance of the turbojet 14 is too inconsistent, and even reaches the level of the early F404 in some indicators, which is equivalent to giving this not very successful project a forcible respect. ??But in any case, this shows that we in China have figured out the second-generation engine. According to the general scientific research rules, it is time to develop the third-generation engine. After a pause, Chang Haonan continued: "It should be considered that the basic conditions for officially launching the 8-stage high-thrust turbofan engine project with a thrust-to-weight ratio are now in place. I hope to concentrate the research power of the entire aviation industry system, with the 606th Institute as the chief engineer unit, combined with the 624th Institute and Liming Institute Factory (Factory 410), jointly took the lead, and other units were responsible for assisting and participating, and they took down this hard nut in a relatively short period of time! "So, before the project is officially launched, I hope to bring together comrades from relevant units for a meeting. On the one hand, it is to unify their thoughts and make everyone realize that this is not sacrificing themselves to support brother units, but mutual benefit. Mutually beneficial, on the other hand, it is also a systematic introduction to the technological breakthroughs we have made in the turbojet 14 project in the past year, as well as some other impacts derived from it, which have given us some confidence in the aviation power field. " ?After hearing Chang Haonan''s statement, Liang Zhuoping, who was sitting on the sofa opposite, was so excited that he opened his mouth several times, but for a moment he didn''t know how to speak. ??He is actually familiar with the gameplay Chang Haonan mentioned. Its just a R&D competition. However, starting from the late 1980s, on the one hand, this approach was considered to have "backward" characteristics of the times. On the other hand, it was indeed too risky to sell the iron by selling the pot. Once it failed, the entire industry would be damaged. Therefore, gradually Never mentioned again. There is no way. As the saying goes, once bitten by a snake, you will be afraid of the rope for ten years. China''s aviation research has suffered too much in this area in the past, and it is still at the stage where overcorrection must be made. ??If someone else came up with this kind of plan, I''m afraid it wouldn''t be seriously considered. But the person standing here today is Chang Haonan. ?So Ding Gaoheng was flipping through the report in his hand attentively, without showing any inclination. ?Although Liang Zhuopings first reaction was that it was a bit ridiculous, when he calmed down and thought about it carefully, he couldnt say anything against it When he came today, he also brought a report. The content is a summary of the development of China''s aviation development industry in the past few years. You dont know if you dont summarize them, but you will be shocked if you summarize them. In fact, until this time last year, Turbojet 14 was still on the verge of a dangerous situation. After a second-class accident occurred during a test flight, Chang Haonan, who had just completed the overall design improvement work of the J-8C at that time, temporarily joined the research team of the 606 Institute. ? It was from that time that the entire project quickly came back to life in a completely new way. The only variable between before and after is Chang Haonan. There is no doubt that such a number one person who wants to concentrate on developing turbofan 10 must still be treated with caution. ??Besides, as the head of China Aviation Industry, Liang Zhuoping himself also hopes to quickly develop aviation power that is in line with the international advanced level. In the past, I just didnt dare to think about it. After all, if something goes wrong, he will be the first to take the blame. Now What if it succeeds? After a long time, Ding Gaoheng, who read the report to the end, finally raised his head. Xiao Chang, before making a decision, I only have one question to ask. I have estimated that this engine battle will probably account for about 80% of the funding for the aviation power field in the next few years. Even taking into account the increase in funding in the next two years, it will not be less than 60%. Have you considered the risks of this? As the director of the Science and Technology Commission in charge of military scientific research and production, Ding Gaoheng must look at the overall situation. . The actual situation of Huaxia is that its financial resources are very thin and it really cannot afford any risks, so it must consider the error tolerance rate. Considered. Thats why I just said that this is not about sacrificing oneself to support brother units, but about mutual benefit. ?Chang Haonan nodded solemnly. He did not reply with words such as, "There will definitely be no risk as long as I am here." ?Although he did feel that nothing would go wrong, that was not the attitude that an engineering technician should have. Even if you are 100% certain, you must be rigorous and responsible. I will divide the Turbofan 10 project into several clear task modules. Each module contains a series of relatively complete technical systems. Each time a small stage is completed, other brother factories participating in the project can obtain systematic knowledge from it. rather than piecemeal knowledge and experience, thereby feeding back their improvement work on existing engine models. "Although the total investment of the entire project is definitely huge, in actual operation, it is actually invested in stages. After seeing the results, it is invested in the next stage, rather than a one-time deal. In this way, both the scientific researchers involved in the project and the Our superior units have some confidence in their hearts. This is also Chang Haonans consistent approach when working on projects after his rebirth. In fact, it is easy to understand if the parent unit is regarded as an investor and the R&D project is regarded as a start-up enterprise. ? New companies can lose money, but you have to make investors see hope - your superior units can continue to invest in you, but you have to be able to continuously feed back some tangible results. For most decision-makers who do not have professional technical backgrounds, "the aviation propulsion technology verification plan has achieved initial results, and significant progress has been made in processing, manufacturing and test equipment construction..." This statement is too vague. But if you directly take out a new engine, even if it is just an improvement and upgrade of the old model, the persuasiveness will be completely different. Ding Gaoheng naturally understands this. ? Its just that for Chinas aerospace development industry in the past, even phased results were not so easy to achieve... ?However, now that Chang Haonan is speaking out with such thoughts, it at least shows that he has carefully considered all possibilities, rather than making a decision made in a rush of passion. Zhuoping, I think this meeting will be held in Linyu, how about it? (End of this chapter) Chapter 378 The road to high-performance aviation! Chapter 378 The road to high-performance aviation engines! A question that stood out suddenly made Liang Zhuoping stunned for a moment. Even though he had just guessed that the aviation industry conference that Chang Haonan applied for would definitely be held, would the decision-making speed be too fast? ?But wanting to think about it, he quickly nodded; "Of course Linyu can. I will start arranging the relevant preparations for the meeting after I return." Just kidding, the leader has put forward all his ideas and then asked for your opinion. Can you still say that I disagree? You dont agree, but some people agree. "In addition, Xiao Chang, Director Huai is currently negotiating according to the strategy you proposed last time, and the progress is quite smooth. If the D436T1 engine can be introduced into our country for production simultaneously, it will also be a boost to the development of the aviation power field. , so I think we can wait a little longer for the specific date of this meeting. After getting Liang Zhuoping''s reply, Ding Gaoheng turned to Chang Haonan and said: But dont worry, it wont take long. Is it so smooth? ??The strategy of killing three people with two peaches was also based on the negotiation process for the introduction of high-speed rail in the previous life, but even Chang Haonan himself did not expect that the effect would be so immediate. "Yes, according to the feedback from Lao Huai after his visit to Zaporozhye two days ago, the situation in Ermao is worse than we previously expected, so Ivchenko-Progress Company is facing a completely The two manufacturing plants in Ufa and Moscow also made a small symbolic concession. At present, there is no fundamental conflict between the two parties, and only some details need to be determined. " Ding Gaoheng nodded and replied: "In addition, part of the reason is that this engine is also very important for many of their models under development, such as Antonov''s An-72, Beriev''s Be-200 and Yakovlev''s Yak 42M. We need it, so we hope to use the funds provided when we introduced it to further improve it. In fact, after receiving a series of huge stimulations from China, especially after learning that China and the European Aviation Administration had successfully signed an airworthiness mutual recognition agreement, Maos thinking quickly completed its self-exculpation Many people have realized that, judging from this development trend, some technologies that are relatively valuable now may be conquered by others in a few years, and the risk of continuing to raise prices is too high. ??On the contrary, it is better to take advantage of the current leading advantage, earn visible money as soon as possible, and then carry out product iterations. Persistence may last longer. Hence, in recent months, negotiations of similar nature have become much smoother than before. For Chang Haonan, the value of the D436T1 engine itself is secondary, and its D36 core engine is particularly worth understanding and continuing to develop. ??A series of classic aviation products from the Ivchenko Design Bureau, such as the D18T used by the An-124, the D136 used by the Mi-26, and the D27 used by the An-70, are all derived from this. ?If it can be obtained, its status in Chinas aviation power field in the future will not be inferior to that of the core aircraft of the Turbofan 10. He is already thinking about how to incorporate it into his plans: Its really worth waiting. In the future, we can even consider using our own technology to continue to support upgrades, and its core engine has great potential. In the future, if conditions permit, we can continue to develop other types of thrust engines on this basis. This sentence is indeed very heroic. Prior to this, the only aircraft engine model that was independently improved by China and successfully achieved mass production was the Turbojet 7/ Turbojet 13, which was copied from the R11F-300 and slightly upgraded along the way. It is used in almost all of the current The aviation power of domestically produced main fighter aircraft. ?But in the final analysis, it was only the technology of the Soviet Union in the early 1950s. It would not be difficult to make some minor technological improvements thirty or forty years later. Even in the mid-1990s, the D436 was not a backward model, and in some aspects it was even better than similar Western products. ?The three-rotor structure has never been seen before in China. ? Judging from past experience, even if such a model is only domestically produced, it will probably take a lot of trouble. ?But since it was Chang Haonan who said this... Ding Gaoheng still secretly raised some expectations in his heart. "Aviation power has been the most important factor restricting the development of our aviation industry in the past few decades. If Comrade Haonan can tackle this problem this time, the turbofan 10, a third-generation engine with a thrust-weight ratio of 8, will be tackled. , our two types of domestically produced third-generation fighter jets will truly have no worries.Perhaps inspired by Chang Haonans confidence, Liang Zhuoping next to him couldnt help but think about the situation after the new engine was finalized: Even if we look at the entire industrial history of China, this is something worth writing about. Although he had not had much contact with Chang Haonan in the past and did not intuitively feel his abilities, a strong intuition still made him decide to set up a special preparatory group after returning, in addition to being responsible for the logistics and administrative work related to the conference. , and more importantly, keep some files, pictures and video records. Liang Zhuoping has a hunch that these things may become very important historical materials in the future. However, he still completely underestimated Chang Haonans goal: More than just power for third-generation fighter jets. The latter shook his head slightly: This time, Director Ding is asked to come forward and gather all the strength across the country. My further idea is to use this opportunity to establish a systematic development plan for the aero-engine industry. In the past, our aviation engine research, including even the newly finalized turbojet 14, was technically very isolated regardless of its performance. The technical connection between different types of aircraft engines was very weak. Projects almost have to be reinvented from scratch, so the efficiency is naturally not high. In the past, we had a small number of main engine models, so we could tolerate this, but in the future, as the types of our aviation products increase, we will also have higher requirements for the diversity of aviation power. Speaking of this, Chang Haonan stretched out his hand and started counting one by one: "Even if we ignore the situation of civil aviation for the time being and only count military weapons and equipment, then two third-generation fighter jets require afterburner thrust of 12 to 13 tons, small bypass ratio turbofan engines, bombers and transport aircraft require thrust. 13-15 ton high bypass ratio turbofan engines, new training aircraft requiring afterburner thrust of 7-8 tons of medium-sized turbofans, large unmanned aerial vehicles requiring 4-5 tons of thrust without afterburner models, cruise The missile must use a small turbojet or turbofan with a thrust of less than one ton..." ?Chang Haonans inventory made Liang Zhuoping a little overwhelmed. ? Many of these models are not even projects, let alone projects, and we dont even have ideas yet. But the latter did not open his mouth to refute Doesnt he want to not have so many models? How is it possible? Is it because you didnt have the ability to know in the past? ?Who in charge of the aviation industry doesnt want to have whatever they want? ? So even though Liang Zhuoping was a little bit embarrassed in his heart at the beginning, in the end he was attracted by the bright future described by Chang Haonan. So my idea is to establish a core model spectrum sequence including 4-6 levels, converted flow rates from 5kg/s to 25kg/s, and cycle power ranging from 1MW to 20MW, which is enough to derive the thrust range coverage. Various engine models ranging from 200 kilograms to 25 tons, and taking into account the different solutions of single, double and four engines, can fully meet the power requirements of most aircraft in the next 20-30 years. "With such a core aircraft system, when a new aircraft is needed, we don''t have to start from scratch like in the past, but only need to make small-scale modifications based on existing models, which will consume a lot of time and capital costs. reduce!" ? Ding Gaoheng and Liang Zhuoping were both silent. The amount of information is relatively large and takes some time to digest. ??This kind of thing is called painting a pie if you have low EQ, and drawing a grand blueprint if you have high EQ. It mainly depends on who specifically said it. As for Chang Haonan specifically, he is naturally more inclined to the latter situation. Im afraid this process still needs to be carried out in stages, right? After a long time, Liang Zhuoping asked tentatively. "Of course, the current plan is to first develop a core machine with a flow rate of 25kg/s and a power level of 20MW. In addition to the turbofan 10, we can also derive a high-bypass ratio model for use on large aircraft to solve the problem. Our most pressing need right now. ?Chang Haonan is also a down-to-earth person after all. ??If five or six models were to go hand in hand, even he wouldn''t be able to handle it. (End of this chapter) Chapter 379 The brand-new JJ9 Chapter 379 A brand-new annihilation of religion 9 Chang Haonans plan for the aviation power development route was not surprisingly recognized by Ding Gaoheng. ?The preparations for the Aviation Industry Conference have begun in full swing. ?However, after all, this kind of matter concerns almost all relevant units across the country. Naturally, it is impossible to notify today and convene tomorrow like a department meeting. Twenty days to one month of preparation are considered normal efficiency. So after returning from the Commission of Science, Technology and Industry for National Defense, Chang Haonans daily life did not change much except that he gradually shifted his focus to the design and manufacturing of aero-engines. On the contrary, because the overall proficiency of software project members is getting higher and higher, the intensity of daily work has dropped a lot. The people sent by Guihang were originally expected to arrive in the capital within these two days, but they were apparently delayed for some reasons on the way. In this day and age, it is normal. ?After all, there are not many places with air connections, and there are no high-speed railways. Considering the locations of the other factories, I am afraid there will be a long stretch of passenger cars in between. In short, when Chang Haonan finally received a call from the school guard saying that two comrades from Zhucheng wanted to see him, it was already three days after the agreed time. The person who came was naturally Sun Huizhong, and one of his assistant engineers named Lin Tongxin. The latter is a graduate student who just graduated from Northwestern Polytechnical University this year. A native of Qian Province, otherwise Im afraid I wouldnt have made such a choice. ?The overall resume is not particularly impressive, but in a place like Guihang, it is not easy to recruit such people, so there is no qualification to be picky. So just one month after joining the job, I was brought to the capital. The degree of emphasis can be seen. Director Chang, I havent seen you for over half a year. Congratulations on your promotion. Sun Huizhong just chatted with the guard at the door and learned from the other person''s name that Chang Haonan has served as the director of this supercomputing center. Hey, no promotion, just contribution in different positions. Chang Haonan said and led the two people to the sofa next to him, then poured two cups of tea and handed them over: Sun Gong was so tired on the boat that he didnt take a days rest at his residence after arriving in the capital? The reason why I asked this question is that the other two looked a little embarrassed. ?Hair and clothes were a mess, his eyes were bloodshot, and he looked as if he hadn''t slept much in several days. Sigh...forget it, this journey is really going to make me anxious. ?Sun Huizhong drank all the water in the paper cup, and then sighed heavily: "It was pretty smooth at first. We took a bus from Yunma Factory to Zhucheng, just in time to catch the flight that only runs twice a week to Jiangcheng, and then... we were delayed in Jiangcheng for four days, otherwise we would have been Its impossible for me to arrive so late. It took so long? Chang Haonan originally didnt mean to blame the other party for coming late. Anyway, Rui Xiaotings previous remote fire project had proven the usability of the software. ?However, the other party''s mention did make him a little curious. After all, judging from the previous application report submitted by Guizhou Airlines, they should be quite anxious about this project. "Last week, it rained heavily in Jiangcheng for several days, and all planes were suspended. At first, we were worried about safety issues and did not dare to take the train. Then we took a look at the timetable and found that there were almost no trains to the north. All stopped." Finally, we finally waited for a semi-clear weather this morning, and the water on the airport runway was drained, so that the plane could take off normally. Otherwise, Im afraid we would have to keep waiting. Chang Haonan was shocked by what Sun Huizhong described. ?Although he has no time to pay special attention to the weather forecast, it is difficult for someone who is engaged in aviation to be unaware of it. ? Judging from the recent feedback from various places, it is not just Jiangcheng that has suffered continuous heavy rains. The rain here in Beijing is not heavy, but it has been falling intermittently for less than half a month. Factory 132 in Chengdu has completed preparations for the first flight of Project No. 10, but has been unable to determine the specific first flight date due to continuous rainy weather. Factory 112 in Shengjing postponed the delivery of four J-8Cs due to weather conditions. When I called Rui Xiaoting two days ago, the other party also mentioned that it was raining in Jinling... Chang Haonan must have remembered the story of continuous heavy rains across the country, especially in the middle and lower reaches of the Yangtze River, in his previous life. But not this year. Is the flood coming earlier? Climate change itself is highly random and easily subject to disturbance. Even as a reborn person, he cannot guarantee that the two timelines he has experienced are completely consistent in these details. On the other hand, before a series of water conservancy projects including the Three Gorges were built, large-scale floods in the Yangtze River Basin were not uncommon. It was just that the incident in 1998 was particularly exaggerated. ?This made Chang Haonan dare not jump to conclusions easily, so he had to continue asking: Its been raining for so many days. How is the situation in Jiangcheng? Im talking about flood control and disaster relief. ?Sun Huizhong raised his head, seeming to be recalling what happened a few days ago: I dont quite understand this, but it doesnt look optimistic. My impression is that since the day before yesterday, many military vehicles carrying people and supplies have driven in. "Um" After thinking for a moment, Chang Haonan still did not continue to ask. With the People''s Liberation Army here, there is definitely no need to worry about organizing rescue operations. The only problem is technology. He should have been able to play some role in this regard. But because it was suddenly advanced a year, it is indeed a bit unprepared now. ?Things that are too complex, such as improving key equipment such as helicopters or construction machinery, will definitely not be able to quench the thirst of the nearer. It seems like you can only start with something simple ??However, Sun Huizhong next to him naturally had no way of knowing what Chang Haonan was thinking. After the pleasantries were over, he took out the laptop and a box of CDs he had brought with him and handed them over: Director Chang, here is our detailed design information on the new training aircraft. Please take a look. The latter, whose thoughts were interrupted, quickly adjusted his mood and motioned for the other party to put things on his desk. The business cannot be delayed. Looking at the previous situation with Rui Xiaoting, he does not need to complete most of the work. He only needs to provide guidance at the beginning and in the most critical places. ?It took a few minutes to turn on the computer, and Chang Haonan clicked on the project file that was prominently located on the desktop ??Computer hard drives in this era were not very big, and unstable pirated systems had not yet flooded the market. Many people did not have the habit of partitioning, and all files were simply thrown onto the desktop. Usage habits are somewhat similar to the SSD era more than 20 years later. After a long file reading time, a 3D model of an aircraft that Chang Haonan was very familiar with appeared on the screen. This is exactly the improvement idea he proposed in Rongcheng before. However, upon closer inspection, there are many details that are different. (End of this chapter) Chapter 380 High angle of attack and high maneuverability (HARV) technology demonstrator Chapter 380 High Angle of Attack and High Maneuverability (HARV) Technology Demonstration Machine In addition to the changes in the shape of the outer edges of the wings and vertical fins that were seen in Ding Gaoheng''s office, as well as a set of extra fuel tanks on the back of the aircraft, the design plan before Chang Haonan also modified the shape of the wing strips. , extending directly from the root of the wing''s leading edge to the side of the canopy. Since the length is too exaggerated, it may even cause the pilots crotch to get stuck when getting on and off the plane. Therefore, in your plan, a small folding boarding ladder was inserted under the side strips... Its quite thoughtful It doesnt really matter whether a land-based aircraft has its own boarding ladder, but it is still necessary if it is to be mounted on a ship in the future. After all, the land on the deck of an aircraft carrier is precious and the number of ground crews is limited. It would be the same if there were fewer bits and pieces around the aircraft. Of course, Chinese aircraft designers in 1997 would definitely not design according to the standards of carrier-based aircraft. This was probably just to make use of the ineffective space under the side wings. Chang Haonan didnt even need to calculate such an improvement, he knew that it must be specifically to enhance the aircrafts control performance within a specific angle of attack range. ?After such modifications, at a quick glance, the entire aircraft feels a bit like an F18 with a single vertical tail and a single engine. After returning from Chengdu last time, we followed your ideas and made a complete overhaul of the JJ-7. At present, the aerodynamic design of the first version has been basically completed. Seeing that Chang Haonan had opened the project file, Sun Huizhong quickly came to the side and took out a stack of photos from his pocket while introducing the results of his recent work: One of the current problems is that I really dont know how to design the DSI air inlet, so I first used an ordinary D-shaped baffle air inlet instead. The other is that there is no way to do structural calculations due to conditional factors, so For the time being, I just made a wooden model and filled in the internal equipment to see. " ?Chang Haonan took the photo and looked at it briefly. Its really a bit fresh. ??In his last life, when he entered the aviation industry and finally came into contact with aircraft design after many hardships, the Olympic Games in Beijing were about to start, so naturally he had no exposure to this traditional craft. Im not telling you, Mr. Sun, your model is quite good. It feels like it could be used as a handicraft. Sigh... I am ashamed to say that in recent years, our best business at Guihang has been wooden furniture, which has even been exported to several Middle Eastern countries. ? ? Sun Huizhong, as an aircraft designer, is always a little embarrassed when it comes to mentioning this matter - An aircraft manufacturing company has never even exported aircraft, but it exports furniture. ??But this is nothing to Chang Haonan, who came back from more than 20 years ago. As for side business, of course you can do some if you have the conditions. ?Chang Haonan did not dwell on the internal structure for too long. ?As far as a simple light trainer aircraft is concerned, it does not require particularly exaggerated structural strength, and the focus of optimization is mainly to reduce weight as much as possible. It can be used by Guiyang Airlines for practice. I see that you have made some changes in the design of the wing. Is it to improve the linearity of the lift curve at small and medium angles of attack? Hearing this question, Lin Tongxin, who had been staying behind Sun Huizhong just now, his eyes lit up: Director Chang, you...see it? In fact, in terms of age, Lin Tongxin, who graduated with a Ph.D., is several years older than Chang Haonan, but after this period of experience, the latter can no longer see many traces of being an undergraduate graduate in his early twenties. In addition, If you don''t know the position between his eyes, most people would think that although he looks young, he must be in his late thirties. This design was proposed by Kobayashi after he joined the company. After the modification, we did a simple calculation ourselves and it is indeed good for improving maneuverability. Sun Huizhong explained next to him. "Of course, small-sized slat wings, or structures similar to slat wings, are the main reason why the **** of the lift curve of the aircraft decreases at small and medium angles of attack. For early mechanical or analog fly-by-wire flight controls, this strong and inexhaustible The non-linearity of the rules is very difficult to control. Chang Haonan put the photo aside, picked up the mouse again, and enlarged the upper part of the screen: The early designs of the Su-27 and F15 both suffered in this regard, and I think you should have found some inspiration from the F18. This...is all right for you to explain. ?Lin Tongxin suddenly became excited: This is the conclusion that my supervisor told us when I was working on a project for my masters degree. I didnt pay much attention to it at first, but I encountered a similar situation as soon as I started working this year... ?The other partys reaction made Chang Haonan couldnt help but smile. He recalled that when he had just graduated and entered the aviation industry in his previous life, he seemed to be in a similar state to him... Then I was quickly taught a lesson by reality. ?There is still some difference between actual work and what you learn in school. In fact, many early third-generation aircraft with slatted wing designs face the problem just mentioned, that is, the aircraft can maintain a certain degree of maneuverability at large angles of attack, but is prone to losing control at medium angles of attack. That is, the torque characteristics are very poor. ?Many seemingly strange designs were born to solve this problem. Its just that the development of aerodynamics far exceeded initial expectations. By the mid-to-late 1990s, there were already many ingenious designs to improve the linearity of torque. Combined with the huge progress in flight control technology, this problem actually Basically no longer exists. ?Thinking of this, he decided to say a few more words: The knowledge learned is indeed very solid, but we still need to work harder to learn and apply it flexibly. Lin Tongxin, who just now thought that his idea was completely guessed and recognized, suddenly turned pale: Ah this "It must have been the early 1990s when I was studying for my master''s degree, and the situation was still somewhat different from now. In fact, with the response speed and control capabilities of today''s fly-by-wire flight control, as long as the design level is appropriate, there will be no problems in this regard. " Speaking of this, Chang Haonan pointed to the vertical tail part of the aircraft on the computer screen and said: "On the contrary, the side strips you design like this may induce a divergent oscillation in the tail part, which is a test for the strength of the vertical tail root. If you observe carefully, you will find that the F18''s vertical tail root is designed with three sets of reinforcing ribs. Just to deal with this problem. "this" ?Lin Tongxin felt relatively good about himself just now, but when he was told this, he suddenly felt a little embarrassed and had to scratch his head in embarrassment. ?Of course, Chang Haonan also knows that at this time, he cannot blindly undermine other peoples self-confidence, so he changed the subject: But, if you can have this idea, instead of just mechanically executing the leaders instructions, you are already ahead of many people. The reason why I say this is definitely not because Chang Haonan was in Versailles. ?There are only a handful of unique geniuses who can change the world on their own. ?Taking him as an example, without the help of the system, he could certainly achieve some impressive results relying on his experience and technology in his previous life, but it would never be possible to reach this point. Most peoples career development path is gradual. The key is to have the opportunity, resources and courage to try. ?Hence, although this Lin Tongxin may not be very strong spiritually, he is definitely a malleable talent. If nothing else, how many people, after graduating with a Ph.D., can still recall a casual remark made by their supervisor while working on a project at the master''s level? But he remembered it. If you are interested, I just have a simpler solution here that can further improve the available angle of attack based on the original design. Chang Haonan said as he pulled a piece of graph paper from the side and drew a picture on it: Designing a retractable small-sized side strip on the side of the nose can reduce the unsteady lateral force and yaw moment generated by the asymmetric vortex of the nose of a large attack angle, and at the same time, it can also take advantage of the side strip vortex. The lateral force generates a moment that hinders yaw. In addition, since the size of the nose strip is almost negligible compared with the wings and tail, it will not affect the longitudinal aerodynamic balance you have prepared. " However, the telescopic structure takes up a considerable part of the nose space, so it is really useless for fighter jets that pursue the size of radar antennas, so I did not apply this design to a specific model. He handed the schematic diagram he drew to Lin Tongxin next to him: If you are willing, you can take advantage of this period of time in Beijing to try out this new trainer aircraft to see if you can develop a specialized high-angle-of-attack high-mobility technology demonstrator. "On the one hand, training aircraft have certain requirements for the controllability of extremely large angles of attack. Compared with other methods, this solution is very low-cost and can be used. On the other hand, it can also be used as a way for your airline to show its face. An opportunity. Selling airplanes is sometimes the same as selling other things. You have to come up with some gimmicks to get people to pay attention..." Having said this, how could the latter have any reason to refuse? He immediately took the graph paper with both hands: Of course I am willing, thank you Director Chang for the ideas and opportunities! Writer Assistant has launched a new green content plan. When I posted the last chapter, I clicked on it and tried it. As a result, it directly deleted the next paragraph of my content... making the last chapter almost less than 2,000 words... (End of this chapter) Chapter 381 Practice designing a DSI air intake Chapter 381 Practice designing a DSI air intake ?Young people who have just joined the workforce are often very passionate, especially after being given direction by Chang Haonan himself. The nose wing is a relatively independent aerodynamic component. Due to its relatively small size, it will be in a contracted state during level flight or low angle of attack flight. It will not affect the normal aerodynamic shape of the aircraft. Only when the angle of attack It will start and take effect only after it breaks through a certain threshold. And this process obviously cannot be carried out manually by the pilot. So where to set this threshold and what the length and width of the nose side strips are to obtain the best side strip vortex is the "homework" left to Lin Tongxin. As for Sun Huizhong himself, he is naturally responsible for a more important task Under the guidance of Chang Haonan, the design and optimization of the DSI air inlet of the advanced trainer aircraft was completed. As a completely non-adjustable air intake type, the biggest problem with the DSI air intake is that it only has one configuration. Therefore, the optimization interval is constant and must have a large optimization interval width. ? ? It doesnt matter if the optimal optimization range of the rectangular baffle air inlet is only Mach 0.01. Anyway, as long as the flight control is strong enough, the air intake efficiency can be ensured to be always in the optimal state by adjusting the position of the baffle. ??However, if the fixed air inlet is made like this, slightly changing the flight speed will cause the air intake efficiency to drop drastically, and even the boundary layer cannot be blown away, resulting in strong air intake distortion, which will affect flight safety. ? In short, it requires a high level of design and experience to achieve a satisfactory optimization state for aircraft using DSI inlets. ??Moreover, Project No. 10 is a key project with a name at the highest level, and every move it makes will attract the attention of countless people. After the first flight of the No. 01 prototype using a three-way adjustable inlet, it needs to undergo major modifications, so it is necessary to produce sufficiently convincing data. As it happens, the common speed range of advanced trainer aircraft is much smaller than that of fighter jets, and the optimization difficulty of the relatively traditional aerodynamic layout is also lower than that of the J-10 using a canard + delta wing configuration. Perfect practice opportunity. Sun Gong, you must make sure you fully understand what Im going to say next. If theres anything you dont understand, ask me right away. ?Chang Haonan turned on his computer, called up several design files that he had prepared long ago, and then motioned to Sun Huizhong to move two chairs from the side. For him nowadays, many times he no longer has to do everything by himself, especially when there is a helper around him. "clear." ?Sun Huizhong quickly sat next to him. "As for the basic principle of DSI inlet, I have already talked about it when I was in Chengdu. Simply put, it uses the characteristics of the cone shock wave itself to form a strong pressure gradient on the convex hull surface at the lip of the inlet. , blow the fuselage boundary layer at this location directly outside the air intake opening to reduce the negative impact of the boundary layer on air intake efficiency. ?Speaking of this, Chang Haonan called up a pressure distribution map that he had asked Yao Mengna to help draw some time ago. It was tested using a DSI inlet model under ideal conditions. From the above, it can be clearly seen that the convex hull structure uses the pressure difference to directly "push" the shock wave out. ?After confirming that both Sun Huizhong and Lin Tongxin had no doubts, he officially entered the key design part today: "It can be seen from this principle that the core of the DSI air inlet design is the shape of the convex hull structure. Through theoretical and numerical analysis of the waverider, I have summarized two design convex hulls. method." I remember you said before, select a number of tracking points from the front edge line of the conical surface, and start tracking from these tracking points to the downstream of the flow field in the flow field..." I have to say that Sun Huizhong definitely put his heart into it when he was in Rongcheng. Even such details can be remembered. "Yes, this is the generating body method, also called the cone method. It is also the basic principle of the most traditional method for designing DSI inlets. It is relatively intuitive and easy to understand, and the design process requires less calculations. So at the beginning of this year , it was the first method I considered. ?Chang Haonan nodded, but then his tone changed and he said: "But recently I just happened to design a new numerical calculation tool whose calculation efficiency is much higher than that of traditional software, so the limit on the amount of calculation becomes much smaller, so I developed a new numerical calculation tool based on the generative volume method. The second method is the close cone method. The second method? ?Sun Huizhong felt that his brain was a little weak at this time. Designing a DSI air intake is inherently a difficult task. Even the United States has only installed a relatively simple early version on an improved F16 technology demonstrator. The JSF Joint Strike Fighter, the first mass-produced model planned to use DSI inlets, has just begun to be selected. In short, it is still in the exploratory stage of design. As a result, you have already summarized a complete set of methodology, and it actually includes two solutions? Its simply unreasonable "Yes, the second method is more accurate than the generating body method, because this method does not need to presuppose a geometry, but directly gives a curve describing the shape of the shock wave at the exit of the waverider, and divides this curve into There are countless small arcs. Each arc can be considered as a part of the shock wave curve, and the cone that generates the shock wave in this section is the close cone. The plane that is close to the axis of the cone and is orthogonal to the arc is called the close surface..." The corresponding close cone is obtained on each arc of the shock wave curve, and finally a series of streamlines are obtained by defining the leading edge curve tracing, which together form the lower surface of the DSI inlet convex hull. "This design method is more flexible and can meet the requirements of various flow sizes and various air inlet geometries. That is, it can adapt to any engine by adjusting different shock wave curves without having to adapt the engine to the inlet. The final product The performance will naturally be better. At this point, Chang Haonan turned around and saw two pairs of simple eyes. Obviously, the leap in thinking just now seems to be a bit too big. It is really difficult for engineers with average mathematical theory knowledge to fully accept the principles in a short period of time. Lets calculate it using two methods. He is going to demonstrate it in the simplest way: We first assume that the shape of the inlet shock wave is a quadratic curve z=-ax^2+b (a>0). ?Chang Haonan wrote a quadratic function directly on the paper. UhDirector Chang, the shape of the shock wave is so simple ?While Chang Haonan lowered his head to write, Lin Tongxin originally wanted to ask why the shock wave curve was in such a simple form. But the words stopped abruptly in the middle of the sentence.?????Because Chang Haonan wrote the second function on paper. And such a combination of parametric equations and curves. ?Chang Haonan stopped writing and looked at Lin Tongxin standing next to him: What were you going to ask just now? No, its okay. The latter quickly shook his head: I was just thinking, Director Chang, its amazing that you can come up with such a complicated shock wave curve. It hurts. It hurts so much. My face hurts so much ? Sun Huizhong next to him had an expression of "I don''t really want to know this person." Actually, Chang Haonan didn''t hear clearly what the other party was saying just now, so he just continued to introduce: "The design of the convex hull surface is originally the core step of the DSI inlet. I have previously thought about simply using conic equations to express it, but the shock wave curve form that needs to be deduced from the mechanism is limited by the current computing power. It was still too difficult, so I had to add some parametric parts. I understand. ?Lin Tongxin just hopes that this topic will be over soon. It was so embarrassing that he wanted to escape from this world just now. Fortunately, Chang Haonan did not continue to pester: Then all thats left to do is He spent more than ten minutes on the computer and actually demonstrated the steps he just mentioned. Of course, for convenience, all parameters are temporarily set to 1, so the designed convex hull shape is a bit strange. But judging from the reactions of the two people next to him, at least the purpose of explanation was achieved. So Chang Haonan picked up his pen again and circled a, b, l, and other symbols: Our next work, in summary, is to select appropriate parameters for this shock wave curve based on the characteristics of the aircraft. Then he looked at Lin Tongxin next to him again, but this time he put on a more relaxed tone: "This is another reason why I don''t want to extend the length of the strakes under the canopy. The inflow compression effect of the strakes will destroy the originally relatively clean shape of the air inlet shock wave, making it difficult for me to The characteristics of the convex hull shapes corresponding to different shock wave curves are analyzed, and designing the air inlet directly in front of the side strip will not cause this problem. " Do you understand now? ?Lin Tongxin nodded quickly. He has learned not to express opinions without finalizing his ideas. "That''s good. If there are no other questions, we are ready to start work. But if there is anything you don''t understand later, you can always come and ask me." Chang Haonan said as he closed the lid of his laptop, got up and prepared to lead two people to the computer room: "Although I originally proposed this model for the purpose of technical verification for Project 10, if nothing else happens, our Guihang Airlines will be the first aircraft to use the DSI inlet on a mass-produced aircraft. Manufacturer." He knows that China in this era has a deep obsession with striving for "first" in various aspects. By the 2020s, after the aviation industry had developed, they no longer deliberately promoted and guided in this direction. It can only be said that the more something is lacking, the more something is wanted. Sure enough, when Sun Huizhong and Lin Tongxin heard his words, their spirits were lifted, and the slight fatigue they had just shown disappeared instantly. Can it be faster than the United States? The latter immediately asked excitedly. Of course, the JSF project has not yet been finalized. There is a high probability that your model will make its first flight before the end of this year. ?Chang Haonan packed up his things and motioned for the other two to follow him. "this" ?Lin Tongxin was stunned by this timing. He remembered that his teacher said in school that the design cycle of an aircraft often takes several years or even more than ten years. Master, is the efficiency of our airline so high? Because Chang Haonan had already walked to the front, he had no choice but to ask Sun Huizhong next to him in a low voice. The latter was almost amused by him: There are indeed people who are very efficient, but they are not our Guihang Airlines. After speaking, he looked at Chang Haonan''s back and followed him quickly. ?Lin Tongxin took a breath of air: Director Chang is a bit scary... (End of this chapter) Chapter 382 Prototype 01 threatened by floods Chapter 382 Prototype No. 01 threatened by floods According to the original plan, in the next few days, Chang Haonan should work with Sun Huizhong to design the DSI air inlet applied to the trainer aircraft as well as the overall structure of the aircraft as quickly as possible, so that Guizhou Airlines can Construction of the first prototype began as soon as possible. However, plans cannot keep up with changes. ?His previous worries are gradually turning into reality With heavy rains falling in most parts of the country for many days in a row, the super flood, which is almost unprecedented in scale and scope, seems to be coming ahead of schedule... ?However, what really made Chang Haonan realize the seriousness of the situation was when he was called to the Commission of Science, Technology and Industry for National Defense for an urgent small-scale internal meeting on a night of moderate rain. Far less formal than last time, but the specifications are even higher. ?Liang Zhuoping got straight to the point and took out a piece of recording paper. ?The above is a summary of the call content: "According to the report of Factory 132 this afternoon, in the past half month, the total precipitation in Chengdu has exceeded 550mm. Although the factory has done its best to drain waterlogging, the local natural water storage capacity has basically reached the upper limit, and some There is water on the ground in the lower living areas. "According to today''s report from the Meteorological Bureau, after a brief period of cloudy weather from tomorrow to the day after tomorrow, there will be heavy to heavy rains for at least a week. According to the judgment of Comrade Yang Baoshu, general manager of Rongfei, it is difficult for the interior of the 132 Factory to bear any more With the impact of a round of rain, and as time goes by, the possibility of triggering geological disasters is also increasing, and the risk of the No. 01 prototype of Project 10 continuing to be parked in the final assembly workshop is very high." "So Mr. Baoshu just called us and proposed two methods. One is to move the prototype to a relatively high position in the factory area, where the radar station of the 132nd Factory Militia Anti-Aircraft Battalion used to be. The ground is flat and paved with cement, so we should be able to hold on for another 5-7 days, but if the rain continues unabated after a week, we may still suffer losses. "second" Speaking of this, Liang Zhuoping even hesitated for a moment before continuing: "Considering that the No. 01 prototype of Project 10 is actually capable of its first flight, in order to avoid greater losses, he hopes to allow No. 01 to take off early the morning after tomorrow and transfer to a nearby safer airport for temporary refuge. " Obviously, this is definitely not optimistic news. An aircraft that has not yet made its first flight has to consider a long-distance transfer flight under relatively harsh weather conditions. The risks are bound to be considerable. For Rongfei to make such a shocking request only shows that the local flood control situation is already difficult to control. Everyones expressions became serious. ??Although Chang Haonan has been paying attention to the precipitation conditions across the country from the news these days, this application from Factory 132 made him intuitively feel the huge threat of floods for the first time. After a period of silence, Ding Gaoheng cleared his throat and first spoke to confirm: According to Yang Baoshu, the morning of tomorrow should be the last window for takeoff? ?Liang Zhuoping nodded: Thats right, the weather conditions further away do not support flight at all, and it is also very difficult to move from that radar position to the runway. Basically, if you choose the first way, you will have to fight the flood to the end. No one spoke again for the next few minutes. The crisp sound of a lighter rang in the small room. Minister Cao Gangchun of the General Armament Department habitually wants to light up a cigarette. But just when the flames reached the head of the cigarette, he looked at Chang Haonan sitting next to him. After a moment of hesitation, he still didnt light it and stuffed the cigarette back into the box: Comrade Xiao Chang, you participated in the ground testing of the No. 01 prototype. I would like to ask, do you think this aircraft is currently capable of long-distance flight transitions? The latter lowered his head and pondered for a moment: Some of the hidden dangers previously discovered during ground testing have been eliminated, and the entire aircraft design has been completely verified, so I dont think there is a problem when it comes to long-distance flight. ?However, before Cao Gangchun could speak again, he continued to add: But the problem is, first of all, there is currently only one prototype of Project 10, and other related auxiliary equipment are still in the development process. If it needs to be transferred, there will probably be a lot of trouble. "First of all, the No. 01 prototype does not even need to use the auxiliary fuel tank. Considering that some fuel must be reserved for backup when landing, the safe transition distance may not exceed 1,000 kilometers. This distance is the plateau to the west, and the altitude of AL31FN The ability to take off and land on the plateau has not yet been verified. Going south and east, the risk of floods is greater than that of Chengdu, so we can only go northwest, and the distance is very limited. We cannot allow planes to land at civil airports. " Secondly, even if the transition is over, the local area will definitely not have the ability to maintain and maintain domestically produced third-generation fighter jets. Even the supply of high-quality aviation fuel will be difficult. How to get the aircraft back to Chengdu in the future is another problem. Furthermore, if Factory 132 is really damaged by floods, even if the prototype is retained, the losses to our countrys aviation industry will probably not be small. Obviously, this is a dilemma. In the final analysis, faced with a natural disaster of this level, it is impossible to have a foolproof plan. We can only choose one with relatively small risks. ?In the next nearly half an hour, everyone put forward one idea after another, but in general, they were not more stable than the two reported by Yang Baoshu. But Chang Haonan never spoke. In fact, after learning about the precipitation situation there from Sun Huizhong a few days ago, Chang Haonan has been thinking about whether there are any solutions. For things like flood control and disaster relief, the most useful thing is of course reservoirs. Followed by large construction machinery. ?It is best to have heavy-duty helicopters. But these things obviously cannot be put together within a week or two. What he uses is cheating, not magic. In the absence of these equipment, traditional flood control and disaster relief... It can only be accomplished with sandbags, stones and human walls. Sandbags and rocks are used to block the flow of water, while human walls are used to slow down the impact of the flood peaks upstream. This is a method that works well but is also extremely risky. Not to mention a human wall that can be washed away by water if not careful, even carrying rocks and sandbags is an extremely high-intensity physical activity. You must know that emergency rescue and disaster relief will not only last a day or two. In the case of a long period of continuous lack of rest, it is necessary to ensure the transport speed. As a result, many people have suffered irreparable injuries or even lost their lives. This basic principle has not changed fundamentally even after more than 20 years, but fortunately, thanks to the development and progress of technology, the specific operation methods have been improved a lot. After brainstorming for a period of time, Chang Haonan finally thought of something that could not only alleviate the risk of waterlogging in the 132 factory, but also play a role in the process of fighting floods. Combined flood control module. ?This idea first originated from the prefabricated metal flood walls used in some European countries. ?However, the cost of that thing is very high, and the assembly is very cumbersome. It is impossible to install it in time when a flood comes, and the actual effect is very limited. Hence, while learning from ideas, China has also made some improvements. The core is actually the set of stones + sandbags. The stones were simply replaced with specially designed steel column-slab structural modules, and the sandbags were replaced with expansion bags filled with a high proportion of water-absorbent materials. When on the ground, the size and weight are very light, and a strong man can even carry 10-20 pieces at the same time. But after being thrown into the water, it can absorb water almost instantly, forming a blockage with a density of 1/6-1.8g/cm and a volume of 15-20 liters (basically the same as a sandbag). In addition to the idea, there are two key technologies for this thing. The first is to conduct fluid-structure coupling system analysis and dynamic response design on metal structural modules to achieve sufficient strength with the smallest possible weight and avoid being destroyed by huge water pressure - this is almost Chang Haonan''s best job, and it is not What a problem. The second is the water-absorbent material inside the expansion bag. Chang Haonan is not a chemical engineer, but he roughly knows that it is some kind of super absorbent resin. ??And the synthesis is not difficult. Because in the past they were directly disposed of as industrial waste. But I really dont know what exactly it is and where it can be produced. ?However, for this kind of thing, you can definitely ask for organizational help. Director Ding, Minister Cao, I have an idea. While everyone was silent, Chang Haonan finally spoke. (End of this chapter) Chapter 383 With the efforts of the whole country, we can build the Nine Heavens Breathing Land! Chapter 383: With the efforts of the whole country, we can build the Nine Heavens Breathing Land! In the entire room, everyone''s attention was instantly focused on Chang Haonan. ?Even though the latter has experienced many battles, he is also a little numb at this moment being stared at by several blazing eyes. ?However, after calming down, he still said in a deep voice: "I thought of a device that can build a flood control belt in a short time. It can not only deal with urban waterlogging, but also prevent dam failures caused by floods to a certain extent, or help block and rescue dams that have collapsed. " "Um?" Hearing this sentence, Cao Gangchun''s eyes suddenly became sharp: Tell me in detail. As the only one with a serious military background among everyone present, he has a more comprehensive understanding of the pain points in the process of flood fighting and rescue operations. For an army in peacetime, disaster relief is a test of war. ??And because disasters are more sudden and unpredictable, in some aspects the requirements for organizational and combat capabilities are even higher! ?Of course, in this regard, the People''s Liberation Army has never disappointed. Wherever there is danger, there are soldiers of the people! But just as soldiers need weapons and equipment to go to the battlefield, emergency rescue and disaster relief also require technology and equipment that keep pace with the times. Although Cao Gangchun has worked in the headquarters for many years, he has also participated in several rescue operations for different types of disasters at the grassroots level, so he knows how difficult and risky it is in the absence of suitable technical equipment. Chang Haonan nodded: Okay, give me a pen and a piece of paper. Compared with previous research in the aviation field, this time, his overall idea was not complicated, so he made it clear in just a few sentences. Only a little more attention has been spent on the design of the steel frame used as structural support. Because Cao Gangchun asked very detailed questions. "Comrade Xiao Chang, the steel plate frame you mentioned is only used as a structure to accommodate the expansion bag, and it does not itself play a role in blocking the water flow, right?" Yes, you can think of this thing as a reinforced steel cage, and the expansion bags are gravel bags and sandbags that are lighter and easier to move. ??Although Chang Haonan is not a soldier, he is still someone who has experienced various propaganda in the information age. He can understand the other party''s urgent but worried mentality at this time, so he explained very patiently. Hearing this, Cao Gang was finally relieved of most of his worries. Its not that they dont trust each other, its just that they are separated from each other. People who have no idea about the power of floods can easily come up with some counter-intuitive methods such as use a metal wall to block the flood. So, what should be used as the absorbent material in the expansion bag you mentioned? In the end, Cao Gangchun still raised this most critical question. This is exactly what I want to ask the organization to solve. Chang Haonan glanced at the group of big guys in front of him and said solemnly: "I have read a document before, which talks about a highly water-absorbent powdered resin obtained due to process errors. The water absorption performance is about 1000:1-20. The content of the report is that the manufacturer originally just used it. When ordinary harmless solid waste was piled in the open air, after a heavy rain, the entire pile was filled with water-absorbed resin. It would be very difficult to go back and find this document now, so I would like to apply to conduct a thorough investigation of chemical companies across the country to see if any manufacturer has produced products with similar properties. I already have the design of the expansion bag and the steel plate frame. It wont take too long. As long as the problem of water-absorbent materials is solved, it can be put into production immediately! As soon as these words came out, Cao Gangchun beside him could no longer sit still, stood up and said: "I can''t wait any longer. One more second of delay in this matter will make it more difficult for the troops involved in disaster relief. I will go back and report it immediately, contact the Ministry of Chemical Industry, and ask them to issue orders to chemical companies nationwide. Send a notice and be sure to find this material!" ?The purpose of this meeting was originally to solve the risk of waterlogging faced by Factory 132. Now that Chang Haonan has proposed a solution, there is no need to continue to work on it. Xiao Chang, after the expansion bag and steel plate frame are designed, you must contact me as soon as possible. I will notify the quilt factory and machinery processing factory in the military industry system later, so that they can be ready to switch production at any time. ?Although Ding Gaoheng''s reaction was not as exciting as Cao Gangchun''s, one could hear some urgency from his speaking speed, which was much faster than usual. Lao Cao. Huai Guomo stood up from behind, stopped Cao Gangchun, who had already put on his hat and was about to go back to deploy the mission, and handed him a piece of paper in his hand. He is from the Chemical Engineering Department of Jiaotong University. Although he has not participated in any specific chemical engineering projects for several years, he has still not forgotten some of the basic skills he learned in the past. He has been silent just now and is deducing the possible composition and synthesis based on the material properties described by Chang Haonan. route: "According to my analysis, the material Comrade Xiao Chang mentioned should be some kind of cross-linked polymerization product using acrylic acid or acrylate as one of the raw materials. You can tell the Ministry of Chemical Industry to focus on the chemical industry in this field. " inside the enterprise." Chao Gangchun took the piece of paper filled with element symbols and chemical structural formulas. ? He ??graduated from the artillery major and couldn''t fully understand it, but that didn''t matter. As the people in this conference room returned to their jobs, orders were issued in an orderly manner to all parts of the country, and together with the People''s Liberation Army soldiers who were gathering across the country, they were preparing to fight against this natural disaster. The huge and sophisticated state machine began to show its power at critical moments. Even if its just a part. That night, dozens of military factories located along the Yangtze River, Nenjiang River and Songhua River received instructions from their superior units, asking them to immediately enter production mobilization status and be ready to switch to production of a polyester made of high-strength chemical fibers. layers of sealed bags, and a steel structural frame with a size between 2-3 meters that can be quickly assembled by bolts. ? Later, textile and steel companies in these regions also received similar notices, requiring them to suspend orders at hand and give priority to providing raw materials to a group of nearby military factories that have not had much production tasks for many years. Early the next morning, Army aviation units near Gan and Hubei provinces received orders to take off, weather permitting, to conduct aerial reconnaissance of the local disaster situation. Twelve hours later, a research team from Zhejiang University launched a stratospheric airship carrying communication relay equipment on the border of Hubei and Shaanxi provinces. ??That is, the ship that was responsible for providing communication relay for naval aviation aircraft carrying out embankment operations in southern Qiong Province a month and a half ago. On the third day, Chang Haonan, who stayed up for two nights in a row, handed the detailed design plan of the flood control expansion bag and steel structure frame to Ding Gaohengs desk. Relevant comrades from the General Office of the Science and Technology Commission have already been waiting here. They will formulate the design plan into production standards in the shortest possible time and distribute it to various arsenals that are already ready. Director Ding, the kind of material I mentioned... ?Chang Haonan didn''t have much time to pay attention to what was happening outside these days, so he was a little worried about it. Already found. ?Huai Guomo, who was sitting next to him, picked up a report from the table and handed it to Chang Haonan: "Last night, the Ministry of Chemical Industry received a report from a chemical factory in Kecheng, Zhejiang Province, stating that they had unintentionally added starch, acrylic acid and cross-linking agents together, and then added alkali to decompose them after graft polymerization. A large number of waste products were produced that were not pure enough but highly absorbent, and it took a lot of effort to process them. ?Chang Haonan took the report and glanced at it quickly. He does not have much knowledge background related to chemical engineering, but the conclusion can still be understood. The water absorption capacity is about 1000:5-10, which meets the requirements. The main raw materials are starch, acrylic acid and sodium hydroxide, which have almost no requirements on purity, and the cost is no problem. ??More importantly, this factory is already producing polyolefins using a similar graft polymerization process and can complete the conversion in a relatively short period of time. "Very good!" ?Chang Haonan flicked the report in his hand: In this way, we can reduce a lot of physical burden on our soldiers participating in flood fighting and rescue tasks, and the damage caused by waterlogging in major cities will be easier to control! Yes, when Lao Cao found me this morning, he almost jumped up. Ding Gaoheng put the report back on the table: This thing you designed may seem inconspicuous, but its significance to the country and the people is no less than those previous achievements. I think it must have a resounding name. In the mythology, Dayu held four innate treasures in his hands. I think it would be better to name them after one of them that is related to flood control. Just call it Nine Heavens Breathing Soil! (End of this chapter) Chapter 384 People are here on the levee! Chapter 384: People are here, the embankment is here! In the end, Chang Haonan felt that it was a bit too middle-class, so he proposed to cancel the first two words and name it "Xi soil" modular flood control reinforcement kit. It seems much more normal this way. And it also retains the original Chinese characteristics. Ding Gaoheng and Huai Guomo are both almost 120 years old together, so naturally they cannot compete with Chang Haonan in such trivial matters. Therefore, it took three people just one minute to determine the name of this equipment that will leave a huge mark in the field of flood prevention and disaster relief around the world in the future. ??Although Chang Haonan felt a little tired from the almost non-stop work for the previous two days, it was ultimately a gratifying thing to see his research results successfully implemented and applied in emergency rescue and disaster relief. The next step is to put it into production and then transport it to where it is needed. The latter breathed a long sigh of relief, and the worry and tension in his heart finally eased a little. "Don''t worry, we allocate production tasks based on the principle of proximity. Under the premise of safe location, we try our best to ensure that factories close to several high-risk river sections give priority to production. The only problem is that kind of highly water-absorbent resin. The process is special, and currently the manufacturers that can supply in large quantities are in Zhejiang and Shandong provinces, but the military has dispatched special transportation troops to ensure the smooth supply of raw materials. " In terms of disaster relief organizational capabilities, Huaxia says it is second, and no one dares to claim first. You have done everything you can, and leave the remaining tasks to us. Ding Gaoheng stretched out his hand, patted Chang Haonan''s shoulder, and said with emotion: Furthermore, it seems that our Comrade Xiao Chang, in addition to being a good hand at researching military equipment, is also good at developing civilian technology. The latter shook his head slightly: Whether we are researching weapons and equipment or anything else, our ultimate goal is to protect the security of the country and its people. We reach the same goal through different paths. ??As a researcher with a military background, its great to develop new weapons and equipment, but the sense of accomplishment that comes from rescuing people is definitely a new experience Since you have such ability, why not do it? Ding Gaoheng was stunned when he heard this. Some fragments from the corners of my memory came back into my mind. That was an old friend, a senior, who said something similar before his death - "I don''t love weapons, I love peace, but for peace, we need weapons." Well said, well said ?His voice was not loud, almost muttering to himself. In a daze, Ding Gaoheng seemed to have returned to the Gobi Desert more than ten years ago. The earth trembled, the sky roared, and the smoke and flash of nuclear weapons explosion appeared before our eyes... It took a few minutes for him to come back to his senses, and secretly told himself that time was urgent now, not the time to dwell on the past. ?So, after quickly adjusting his mood, Ding Gaoheng raised his head again; By the way, from the look of you, you probably havent had a good rest for a few days. Ive asked someone to prepare breakfast and a room in the guest house for you. You can just go there and have a rest. ?This is indeed the physical sense of handing over a pillow when drowsiness comes. ??Before, I had been in a state of nervous tension and didn''t feel it. Now that I suddenly relaxed, I felt waves of sleepiness rising. Also good. ??He knew that Ding Gaoheng was right, there was only so much he could do, and the subsequent tasks belonged to others. In the next few days, it rained continuously. ?One evening a week later, the Flood Control and Drought Relief Command Center near the Yangtze River Embankment in Gangneung. A figure wearing a poncho was pacing back and forth anxiously inside. The command center is actually a place temporarily built with several tents on a slightly higher ground. A set of specialized antennas are set up next to it to communicate with various monitoring points in front, as well as Jiangcheng and Jingcheng behind. Report to the Deputy Commander-in-Chief! ?The call team leader put down the radio and took three steps at a time to come to the figure: The Shashi Monitoring Station reported that the water level has reached 44.68 meters! ? ? Thanks to the new stratospheric communication relay technology, even if the ground communication station is interfered with or destroyed, the normal upload and delivery of information can still be maintained. This may be the only good news at hand. ?However, this "good news" brought him bad news like a bolt from the blue. ?According to the "Severe Flood Prevention Plan" previously issued by the country, when the water level in Shashi exceeds 44.67 meters, flood diversion work should be prepared immediately. ??But the words "flood diversion" are easy to say, but when it comes time to make a decision, it is extremely difficult. In the past few days, an expert group has calculated that flood diversion will cause 921.34 square kilometers of land to be flooded, with a conservatively estimated direct economic loss of nearly 20 billion yuan. ??But if there is no flood diversion, the flood peak in the upper reaches will encounter the floods that have also formed in the middle and lower reaches, transferring all the pressure to the lower parts, especially Xunyang near the Poyang Lake system. Furthermore, once the Jiangling Yangtze River levee breaks, the entire downstream area, including the three towns of Jiangcheng and most of Gan Province, will become a swamp, and the losses will be even more incalculable. The choice was placed in front of Niu Maosheng, deputy commander-in-chief of the General Defense Department. flood diversion ?He hesitated for a moment: "I need to report and request final instructions on whether to divert the flood. But without further delay, we will immediately mobilize all the forces that can be mobilized. We will first notify the people in the flood diversion area, and they must all move to a safe area before 12 noon tomorrow. No one can be left out! Be prepared for the best and prepare for the worst. "yes!" The call team leader quickly turned back to the equipment and began to deploy specific transfer work. Soon, the shrill air raid sirens sounded, and TVs, radios, loudspeakers, and staff knocking on doors all began to announce the same content "Flood Diversion Preparation and Relocation and Resettlement Headquarters Transfer Order" Keep the green hills here, so you dont have to worry about running out of firewood. As long as there are people around, a home can be rebuilt if it is destroyed... ?Huge slogans passed through the streets and alleys, echoing in the sky above Jiangling. ?Niu Maosheng clenched his fists and looked tense. With a background in farmland water conservancy, he has been working on the front line of the water conservancy system since graduation. He has participated in and directed flood control and rescue work in the Beijing-Tianjin-Hebei region and along the Yellow River many times, which can be said to be experienced in many battles. But the current situation is far more serious than ever before. Perhaps only the catastrophic flood in 1954, which he had not directly experienced, could be compared with it. When he thought of the descriptions of the flood in the files he had read, Niu Maosheng felt chills all over his body The number of people killed directly due to floods alone exceeds 30,000. If various secondary disasters are also included, the final number may be an order of magnitude higher. Even though reason tells him that the water conservancy facilities in the entire Yangtze River basin today are by no means comparable to those 40 years ago, and the disaster prevention and secondary disaster control capabilities are far superior to those of the past, but emotionally, it is impossible not to worry. Lets go and have a look on the embankment. Niu Maosheng, who was restless, finally turned around and said to the entourage who were following him. But deputy commander, here "There are other staff responsible here. Besides, the communication is still open. If there is anything important, just contact me directly." ??He said and pointed to the portable radio equipment carried behind the back of the person next to him. ?A few hours later, Niu Maosheng first took a passenger car, then transferred to a truck, and finally changed to walking, and finally arrived at the Jiangling Embankment. ?Several people trotted forward, snapped to attention, and saluted Niu Maosheng. ??Due to the obstruction of the life jacket, he could not clearly see the military ranks of these people. Fortunately, the leader quickly spoke: Huang Linqun, commander of the 361st Regiment of the 121st Infantry Division of the 41st Group Army of the Guangzhou Military Region, reports to Comrade Deputy Commander-in-Chief! ?This number is somewhat familiar to Niu Maosheng. ?Subsequently, with the help of the searchlight that swept across the scene, he saw a fluttering red flag not far away. ?There is a row of large golden characters written on it. Tashan Defense Hero Regiment Tashan has no pagoda and no mountain. The four vertical columns are both pagodas and mountains. This unit was the former 28th Regiment of the Fourth Column of Dongye. ?Seeing the PLA soldiers on standby on both sides of the embankment, Niu Maosheng finally felt relieved. Lets briefly talk about the overall situation of the embankment. "yes!" ? Huang Linqun nodded, and then led Niu Maosheng and his party onto the embankment: The designed flood diversion area covers about half of the area of ??Gongan County, and is mainly composed of the North Gate (flood gate), South Gate (control gate) and 208 kilometers of embankments. We are now on the embankments..." "The North Gate is located near Taipingkou where the Hudu River and the Yangtze River meet in the northern part of the Public Security Bureau. It consists of a 54-hole steel arc gate about 1 kilometer long. There is also a layer of siltation embankment outside, which is fixed. If you want to discharge floods, you need By blasting the siltation embankment, the floodwaters from the Yangtze River are released, and then the north gate is opened to allow the floodwaters to enter the flood diversion area. "According to the design, the maximum inflow flow of the North Gate is 8,000 cubic meters per second. If the water level in Shashi cannot be reduced by opening the North Gate, we need to blast the Lalinzhou embankment about 4 kilometers east of us and cooperate with the North Gate to divert the flood into the Jingjiang River. Flood diversion area Captain Huang! Just as the two people looked towards the flood gate with the help of searchlights, another soldier also wearing camouflage uniform suddenly ran over from behind. Because of the darkness, I couldnt see my face clearly, but my voice sounded much younger. Captain Huang, do we really want to blow up the embankment tomorrow? ?This question was obviously not something Huang Linqun could answer, so he had no choice but to raise his head and look at Niu Maosheng. Little comrade, I am Niu Maosheng, deputy commander-in-chief of the General Defense Force. May I ask who you are ??The latter walked closer to the opponent. Although he still couldn''t see his military rank clearly, he could at least tell that he was a lieutenant. ?The other party called Huang Linqun Captain Huang instead of directly the leader, which seemed to indicate that he was not from the 361st Regiment. Deputy Commander-in-Chief, I am Liu Zibei, commander of the Ground Explosion Company of the 41st Group Army Engineer Regiment, which is currently under the command of the 361st Regiment! ?Sure enough, it seems that if it is decided to release the flood, the related blasting work will be completed by him. How are the preparations for flood relief going? ?Niu Maosheng did not answer the other party''s question directly, but asked first. A total of 50 tons of explosives have been laid on the Beizha Barrage and Lalinzhou River Embankments, and blasting can be carried out at any time as long as orders are received. ?Company Commander Liu''s first answer was entirely a professional question, so it was very straightforward. But then his tone changed: But Deputy Commander-in-Chief, I...I have learned blasting for more than ten years, but I cant just carry out a real mission for the first time...that is, to flood peoples homes... My hometown is in Hunan Province, and I know what its like after being flooded... Liu Zibei''s words hit Niu Maosheng''s heart like a heavy hammer. But he also knows that the most important thing to consider whether to release floods is to comprehensively consider various risks. It was raining heavily in the dark night, and the tension before the war made people breathless. Niu Maosheng did not go back, but stayed with Huang Linqun. In the meantime, he and the latter met the commander of the 121st Division and listened to his report, but in the end he returned to the location where the flood was planned to be discharged. It was late that night. Another group of people came to the embankment of Jiangling. Niu Maosheng was the first to recognize the identity of the leader. Commander-in-Chief! ?The other party nodded, and then said in a unique, slow but rhythmic tone: I have received the authorization to issue a flood diversion order, but before making a final decision on whether to divert the flood, I still hope to listen to the opinions of water conservancy experts and frontline PLA commanders. Several engineers and meteorological experts from the Hydropower Research Institute next to him looked at each other. Finally, one person stood up as a representative and reported: "Reporting to the Commander-in-Chief, the sixth wave of flood peak will reach Jiangling tomorrow, but this wave of flood peak is of a pointed and thin type. Although it is very high, the total water volume is limited. If combined with the ultra-elevation flood storage of Geheyan Reservoir and the Gezhouba Power Plant to reduce the flow, If all the reservoirs in Sichuan and Chongqing are locked, the ultimate water level should be around 45.25 meters, which is still below the theoretical limit of the levee. Therefore, if we want to survive the crisis safely, we must use enough manpower to guard it! " This judgment undoubtedly brings a glimmer of hope to the flood diversion area. ?However, the commander-in-chief also has an engineering background and knows that the theoretical limit has actually far exceeded the target limit during design. The middle part is just a safety margin due to the inability to guarantee 100% accuracy during the engineering calculation process. Since it is a margin, it must not be completely reliable. ??If you really have to choose to resist, the pressure will be on the cadres, masses and military commanders responsible for guarding the embankment. ?His eyes swept across the Huang Linqun standing in front of him. Captain Huang, now is not the time to show off, how confident do you think you can be? ? Huang Linqun did not answer directly, but took a step forward. He is just a group leader, and no matter what answer he gives, it has no decision-making significance. Commander-in-Chief, our 361st Regiment is the best at defense. Since we were able to defend Tashan back then, we can also defend Jiangling today. People are here at the embankment! (End of this chapter) Chapter 385 "Xi Soil" fights the Flood Demon Chapter 385 "Xi soil" fights against the Flood Demon Captain Huang''s guess was correct. This kind of matter, which was related to the safety of dozens of millions of people, naturally could not be decided by just the statement of his captain. ?But even so, the determination he and other commanders and fighters involved in disaster relief showed had an impact. At noon the next day, after a whole morning of discussions, the Flood Control Bureau finally officially issued the instruction No flood diversion will be carried out until the water level rises to 45.3 meters. But just in case, the relocation work of people in the flood diversion area still cannot be stopped. Following such an instruction, tens of thousands of People''s Liberation Army commanders, militiamen, and cadres and masses involved in rescue operations on the entire Jiangling Embankment were all mobilized to prepare for the upcoming sixth wave of floods! Also at a critical juncture, there is Xunyang further downstream. ?Due to special terrain factors, this city located next to Poyang Lake has borne the brunt of previous Yangtze River floods. Although the local rainfall is not heavy, when the upper and middle reaches of the main stream and tributaries flood one after another, and begin to interact and overlap with each other, the risk of flooding is actually more serious than in areas with heavy rainfall in the upper reaches. After the decision not to divert floodwaters in Jiangling was made, the pressure of the entire Yangtze River Basin concentrated here in a short period of time. There is no flood discharge area designed in advance, so there is no other choice but to resist. At the same time, because there is no flood discharge area, there is no place to focus on in the entire Xunyang section of the Yangtze River embankment. ?This is definitely not a good thing ? Anyone who has taken the exam knows that if there are no key points, it means it is all about the key points. The Xunyang section of the embankment was not expected to withstand such a large flood. As the previous rounds of flood peaks came one after another, it was still unable to fully withstand the increasingly high water levels. The rescue force of tens of thousands of people looks quite large, but if they are spread out evenly across hundreds of kilometers of embankments like beans, I''m afraid they won''t be able to hold on even if there is a problem. Therefore, they can only concentrate on staying at the garrison not far away and wait for orders. ??And because the stratosphere above Gan Province does not meet the required meteorological conditions, and Zhejiang University does not have a second set of relay communication equipment on hand, the information transmission situation here is much worse than in the Jiangling area of ??Hubei Province. Fortunately, the local weather is okay, so helicopters from the Army Aviation Force continue to take off, firstly to monitor the situation, and secondly, to be ready to deal with possible communication interruptions at any time. Report, there is a collapse between gates 4 and 5 of the embankment! ??In the local defense frontline headquarters, an anxious voice suddenly sounded. The most worrying thing has happened. The current breach width is 60 meters, but there is a tendency to expand to both sides. ?Liao Xinmin, the local head of the National Defense Bureau, is naturally far inferior to Niu Maosheng of the National Defense Bureau, but his determination at the critical moment is no worse: Explain the situation to the Peoples Liberation Army troops and ask for reinforcements. The rest of you, follow me up the embankment! ?The breach at the scene was like the gaping mouth of an evil dragon, with torrential water pouring down into Xunyang City. There are 4.5 million people who have nowhere to move. The 60-meter-wide breach itself would not cause the situation to get out of control, but as the saying goes, a thousand-mile **** was destroyed in an ant nest. If such a breach cannot be controlled in a short time, it may even trigger the collapse of the entire embankment. This hole must be blocked. The specific method of blocking will have to be decided by experts from the water conservancy department. But no matter what method is used, the first step must be to reduce the flow rate and flow rate. Otherwise, any building materials and construction equipment will not be able to operate normally in the surging river water. Have you deployed according to the emergency plan? ??Liao Xinmin asked the on-site staff next to him. We had already deployed it when the spring phenomenon was discovered, but the flood level in our plan was far from the current situation, and it was a drop in the bucket. The latters body and face were almost completely covered with mud and water, and his tone was equally anxious: "Just now, shipowners from near Poyang Lake rushed over spontaneously and scuttled eight inland river coal ships with a total of 10,000 tons near the breach. It had a slight effect, but the current was too fast, especially the bottom of the ship was still It can pass through a large amount of water, causing the location of the sunken ship to continue to change. If new blocking items cannot be filled in, it may not be long before it is washed away! " ?The cadres and masses participating in the rescue on the shore are throwing in all the gravel, rubble, and coal they can collect. But even a sunken ship of tens of thousands of tons cannot guarantee complete stability, let alone these small things, which disappear without a trace almost as soon as they are thrown into the water. Just when everyone was almost helpless, a shout came from not far behind. The Peoples Liberation Army is here, the Peoples Liberation Army is here! Liao Xinmin turned around suddenly and saw a convoy of hundreds of trucks on the distant road, like a long winding queue, heading towards the embankment. With the arrival of the People''s Liberation Army, there is hope. Hurry, prepare the relevant information and the current situation of the breach, and do your best to cooperate with the comrades in the army in disaster relief! The first person to lead the team was Wang Hong, the commander of the 2nd Regiment of the 1st Division of the Jinling Military Region. After hearing a brief report, he went to the breach to check the situation in person. We have tried using shipwrecks, gravel, and sandbags, but they all failed to hold and were quickly washed away. ??Liao Xinmin wiped the sweat or river water on his face and said to Wang Hong, who was looking around to observe. Normally, in this case, blockages alone are not enough. You need to drive wooden piles and steel bars into the river bed to form a cage-like structure, and then throw gravel bags and sandbags inside. Before setting off, he had already consulted with his senior superiors who had relevant experience, so he had already made preparations in this regard. But how can we push things into such a large amount of water? Liao Xinmin was dumbfounded when he heard this answer. To construct in water, you need to use blocking materials to reduce the flow speed. And to reduce the flow speed, you need to drive wooden piles and steel bars into the water first? Leave it to us. After Wang Hong finished speaking, he asked for a wrist-thick rope from the staff behind him, tied it around his waist, and then took the loudspeaker used for shouting from Liao Xinmin. All cadres at company level and above, get out! Soon, the several hundred selected commandos tied themselves into several strings with ropes, and the people who stayed on the shore held on to the other end of the ropes. Immediately afterwards, Wang Hong took off the hat on his head and jumped into the river first. ?Hindered by several human walls, the raging water finally slowed down slightly. Other people who came up as reinforcements began to throw sandbags into the middle of the human wall. Although most of it will still be washed away, at least it has begun to have some effect. It is impossible for trucks transporting supplies to drive directly onto the embankment, so the last section of the road can only be completed entirely by manpower. Half an hour later, the first wooden pile was successfully driven into the bottom of the river bed, finally giving the nearby crumbling human wall a new support point...Although the situation has made progress, the efficiency is still not high. ??Moreover, the risk is high. At the beginning, it was fine when everyone had plenty of energy, but as time passed, everyone''s energy was rapidly drained from being immersed in the flood for a long time. Some warriors with weaker physical strength were almost washed away. Of course, people on the shore and in the water are also rotating, but due to the tight manpower, they have to be responsible for carrying disaster relief materials even on the shore, which cannot guarantee adequate rest... Two days passed like this. The breach has been initially controlled, but the flood is still pouring outward at a flow rate of more than 130 cubic meters/second and a flow rate of 5 meters/second. According to the blocking plan, after the breach is initially controlled, a half-moon-shaped cofferdam should be formed in the area to prepare for the subsequent filling and embankment work. But because Wang Hong and others used ropes to secure themselves when they first went down, it was really difficult to make the cofferdam into a half-moon shape. It can only expand outward little by little on the basis of a straight line. ?However, after two days of continuous high-intensity work, the commanders and fighters of the three regiments participating in the flood fight themselves have almost reached their limit. Many people have fallen into coma or even gone into shock due to overexertion, and have been sent to makeshift field hospitals nearby. ?The on-site commander was heartbroken, but there was nothing he could do. In fact, he has already sent his own sons who are currently serving as company commanders. One division has no reserves. Deputy Commander Dong, the head of the 2nd Regiment just reported that a new batch of strange relief supplies have been sent to us. The deputy chief of staff of the Jinling Military Region came over and whispered a report in his ear. "strangeness?" ?The long-term lack of sleep caused the commander-in-chief to be stunned for a moment before he reacted: Lets go and have a look. ??When he came to the disaster relief material distribution center near the embankment, he saw Wang Hong communicating with a man in casual clothes opposite. Next to it are two large bags unloaded from the car. ??tarpaulin material. One of them has been opened, and inside is... Something that looks like a sack. Whats going on? Reporting to the commander-in-chief, this is a new batch of disaster relief materials. Comrades from the Zhejiang Provincial Bureau of Science and Industry are introducing us to the precautions for use. Wang Hong came up, saluted, and replied. Thats all? The commander-in-chief picked up a corner of a bag from the side and weighed it. Its flat, takes up almost no space, and seems to weigh less than one-tenth of a sandbag. The casually dressed staff member next to him nodded: Yes, this is a flood-proof expansion bag that we rushed to produce. The first batch now totals 10,000, and more are being produced and transported in the future. Although it looks very small now, as long as it is thrown into the water, it will become slightly larger than a standard sandbag within ten seconds and weigh about the same, which can greatly reduce the physical burden of the soldiers. In addition, there are prefabricated steel plate beams on the vehicle, which can be assembled on site with bolts. Their ability to resist water flow impact is much stronger than ordinary steel cages..." Hearing these last words, the commander-in-chief thought of the young faces that had fallen in front of him in the past two days, his eyes turned red, and he quickly turned his head slightly. Commander Wang, let your troops try it! "yes!" Actually, after hearing the other partys introduction, Wang Hong was still a little doubtful. Mainly because this description is so amazing. ?When people encounter particularly big good news, their first reaction is often to doubt its authenticity. ?But anyway, this kind of expansion bag is very easy to carry. He can carry a dozen of them by himself, so it doesnt hurt to give it a try. In case it is useful. He called a few people and took out a total of 100 expansion bags from the first waterproof bag. The sharp-eyed warrior noticed that the word "Xi soil" was printed on the surface of the bag. ?Wang Hong has read some books and knows that this seems to have something to do with the legendary Dayu. The jackpot is pretty good. ??But if we look deeper, Dayu and his elders used dredging methods to control water, and now this thing is obviously used to block... The group quickly returned to the vicinity of the breach. Wang Hong personally threw the first expansion bag into the water flow. Then, amid the stunned expressions of several people, this thin bag that was expected to be washed away in an instant actually expanded rapidly as the person from the Science and Industry Bureau just said. ? ?Finally, it was blocked by two wooden stakes set up behind, which perfectly played the role of sandbags. TMDis it really useful? ?Wang Hongs shock instantly turned into ecstasy. Even if we do not consider the steel plate beams whose effects have not yet been tested, this expansion bag alone is enough to increase the rescue efficiency by 10 times! Hurry, send someone to move some more, and well speed up the progress! After reacting, he directly threw the remaining ten expansion bags into the water, then turned around and shouted an order to the staff officer behind him. In addition, according to this efficiency, we can block the opening before nightfall today and tell the engineers to prepare to fill the pond and consolidate the embankment! (End of this chapter) Chapter 386 The merit lies in the future! Chapter 386: Great work! ??When the dozen expansion bags thrown by Wang Hong became as big as sandbags in a short period of time, and finally sank to the bottom of the river, everyone around them who was watching all this was shocked. Then he quickly threw the expansion bag in his hand into the water. 100 in total. They accumulated in the river and have even become a line of defense that has begun to take shape. ?Of course, in terms of the entire ulcer area, the effect of these 100 expansion bags is not worth mentioning. ??But this is what less than ten of them achieved in a few minutes. It didnt even consume much physical strength. This is the power of technology. Commander, this thing... is simply amazing! ??The regiment chief of staff who was following Wang Hong slapped his thigh and smiled from ear to ear, revealing two rows of white teeth on his face that was already covered with sand: Ill take my people and put all the 10,000 expansion bags in! "Wait a moment!" ?Wang Hong called the chief of staff from behind: Remember to arrange for each company to take turns to rest. I think some soldiers are almost reaching their limit. If they continue to hold on, there may be problems. As soldiers, they are not afraid of hardship or fatigue. But flesh and blood has its limits after all. Each person can only carry one bag of sandbags weighing 20-25 kilograms at most at a time, and even warriors with excellent physical fitness will become weak and exhausted after several consecutive trips, not to mention that almost everyone has been doing this for two days. I didn''t sleep a wink for two nights. ??There are many people who are even slightly injured and cannot get out of the firing line, and are so tired that they vomit blood and faint. As for those whose hands are worn out and whose fingernails are worn off, there are countless others. The thing in front of them can undoubtedly greatly reduce their work intensity. Its not just the difference that everyone can relax a little bit. More importantly, after efficiency increases by an order of magnitude, there is no longer a need to tie everyone to the embankment. It also means that after working continuously for two days, the commanders and fighters of the three regiments responsible for blocking the Xunyang Embankment can finally take turns to rest. At this time, abundant physical strength is fighting power. ?Many martyrs who sacrificed their lives in flood fighting and rescue operations fell down due to lack of physical strength or were washed away by floods. "yes!" The chief of staff saluted Wang Hong. In addition, let the comrades in the cooking class use the existing conditions to try to get some hot meals, even hot water, so that the comrades can recover. After assigning tasks to his staff board, Wang Hong himself did not rest, but once again took people to the material distribution center next to the dam. ? He ??still remembered that along with the flood-proof expansion bags, there were a bunch of "unremarkable" steel plate beams. Before, he didn''t pay attention to it because it was too heavy, but now... Since the expansion bag is so easy to use, the steel plate beam used with it may not bring any surprises. ??Wang Hong felt that the fatigue accumulated in him over the past two days had been wiped away. They moved the first set of bulk steel plate girder components as quickly as possible. Then, under the guidance of the comrade from the Zhejiang Provincial Science and Industry Bureau, it took about fifteen minutes to assemble them together. ?The originally ordinary steel structural members formed a slightly strange cage-like structure after being spliced ??together. ?Following the instructions for use, just put a dozen expansion bags into different positions of the steel plate beam, and then throw them into the water in a specific direction. The entire assembled structure is not light and requires four or five people to lift it with all their strength. But fortunately, only the last step needs to be moved as a whole, before it was all separated. "One, two, three!" Several people worked together to throw this strange-shaped thing into the water as required. ?According to their past experience, even metal products of this weight will roll or shift under the impact of the water flow after being thrown in. It has to be fixed to the river bed below by manpower. ?This is why even though the length of the breach has been controlled, a considerable number of soldiers still have to be soaked in the water - Otherwise, the previously fixed steel bars and wooden piles will be easily disrupted again. However, this time, the situation is a little different. The roaring flood seemed to have been relieved of its force, only making the steel plate beams shake a few times at the beginning. But as the expansion bags inside absorb water and fill the gaps, the entire structure becomes rock solid. It seems like... it could work better than wooden piles, steel bars and gravel packs? ?At this time, Wang Hong and others almost discovered a whole new world. There is such useful equipment Almost everyone can see that the combination of flood control expansion bags and detachable steel plate girders can directly reduce the risk and difficulty of flood relief by several orders of magnitude. Even local flood control departments, which are less organized and less professional, can still take on a considerable part of the dangers that in the past had to be handled by the People''s Liberation Army. The militarys first priority is to fight, after all. It is impossible to prepare for disaster relief at all times, so most of the time it is impossible to be the first to arrive at the scene. Just like the situation with the Xunyang Levee this time, if the Xunyang defense manager who responded first had these things on hand when he discovered the hidden danger of the dam breach, he could at least delay it for a long time, or prevent the breach from continuing when it first appeared. expansion. ?With the help of two new types of equipment, the second step of the task of blocking the Xunyang Embankment was successfully completed in the evening of that day. The engineers who were already on standby quickly used the prepared bags of clay, anti-seepage cloth and quick-drying cement to reinforce the temporary embankment structure that took tens of thousands of soldiers two days to build. At this point, the breach sealing project is fully completed! ?The on-site commander was standing next to the newly repaired breach, watching all this with tears in his eyes. ?As long as he turned his head slightly, he could see the lights in Xunyang City in the distance. ?Although there was some impact there, because the breach was repaired in time, it did not cause too serious losses. At the same time, the soldiers he brought from the Jinling Military Region were all safe and sound! Bring back as much as you bring out. This is the goal the commander-in-chief set for himself before leading the team. ?However, he also knows how difficult it is to avoid any losses in the face of a natural disaster of this level. So he had never mentioned it to anyone before. But now its really done. "Well done... You are all well done... You can''t find such good warriors anywhere, who can fight and endure hardships!" ?Standing in front of the three main regiment leaders, the commander-in-chief''s tone was choked with sobs. "Deputy Commander Dong, this time we were able to successfully complete the breach sealing task within 60 hours. In addition to the hard work of the soldiers, it was also inseparable from the two batches of comrades from the Zhejiang Provincial Bureau of Science and Industry who sent us at the most critical moment. Supplies. Wang Hong was of course very excited to be praised by the other party, but after thinking about it, he felt that he still couldn''t be greedy for credit and had to explain the effects of the two key pieces of equipment: I think our experience should be promoted, preferably by other comrades who are also involved in disaster relief. The commander-in-chief, who calmed down his emotions, nodded, but with a clear tone: "I know, in the afternoon, I have noticed that your gagging efficiency has increased nearly ten times. This is definitely not something that can be achieved by working harder, so I went to consult the comrade from the Science and Industry Bureau. " "He said that this is a production task assigned to them directly from the Commission of Science, Technology and Industry for National Defense, and it is available all over the country. After it is built, it will be transported to the disaster-stricken areas in need nearby, so I think other places should cooperate with us. Same thing, Ive already used the two types of equipment you mentioned. Speaking of this, the commander-in-chief took out an expansion bag that had not been thrown into the water from the side, unfolded it in front of him and looked at it carefully. Its really unbelievable. Its hard to imagine that such a thin bag can become about the same size and weight as a sandbag once its wet with water..." China has always been a country prone to serious floods. The people who invented these two things deserve great credit! Thanks to the book friend [Fragrant Rice] for the 10,000 starting coins! (End of this chapter) Chapter 387 Game from outer space Chapter 387 Game from Outer Space ??The Xunyang Yangtze River Levee breach sealing project was completed in less than three days, which is a huge encouragement to the flood control work in the entire Yangtze River Basin. Similar plots also occurred along almost all the banks of the Yangtze River, Songhua River and Nen River These are also the three river systems most threatened by floods. ?Three days ago, when the breach in Xunyang just appeared, the Jiangling area was also facing the surging sixth wave of floods. ??Although the levees there are still standing, springs have been found in many places. That is, under the action of seepage. The fine particles of soil form pores along the skeleton particles, and the increase in the flow rate of water in the soil pores causes the fine particles of soil to be washed away. Obviously, finding this kind of situation on the embankment means that cracks have appeared on the water surface of the embankment. If it cannot be dealt with immediately, it will affect the safety of the entire embankment. The Xunyang Embankment breached within a short period of time after the bubble phenomenon was discovered. It is not impossible to eliminate hidden dangers. Its just that the difficulty is not any lower than sealing the breach. Since it is impossible to determine the specific location of the breach on the water surface, it is unrealistic to dump a large number of sandbags enough to cover the embankment surface in a short period of time. Therefore, it is generally necessary to find soldiers with good water resistance and dive into the water with sandbags to find the specific spring. After the position is determined, fill the blockage accurately. There is no need to elaborate on the risks involved. Just diving with a sandbag weighing more than 20 kilograms is almost impossible for most people. You must know that no place has the conditions to provide professional diving equipment to so many warriors. So its almost all about physical resistance. Fortunately, although the Tashan Garrison Hero Regiment became famous for its battle in the northeast, it has been stationed in the south for a long time after the founding of the People''s Republic of China. Its sources of troops generally come from the south, especially the coastal areas, and there are many warriors with good water skills. But even so, the situation is getting increasingly difficult. ?At this time, it was also learned that the dam had broken in the Xunyang section downstream. For the defense command center, this was undoubtedly the last straw that could affect decision-making. No, it should be said to be a huge rock. Whether or not to release the sixth wave has become a question lingering in everyone''s mind. If it is not released, not only will the Gangneung Dam be in great danger, but the flood peak flowing downstream will also affect the downstream areas. ? Its just that as the Yangtze River Defense Chief who is in charge of the overall situation, the amount of information they have is incomparable to that of Xunyang. Before arriving from the capital, the commander-in-chief listened to reports from the General Armament Department and the Commission of Science, Technology and Industry for National Defense. ?In addition to common urgently needed equipment for disaster relief such as construction machinery, helicopters and trucks, Ding Gaoheng and Cao Gangchun also focused on two other things. One is a high-altitude balloon that can carry out signal relay. ??Although ionospheric transmission in the VHF band can certainly guarantee communications between Jiangling and Beijing on land, it is obviously impossible for both the disaster-stricken people and grassroots units to have such professional equipment. Therefore, when someone reported that the satellite communication phone was out of service a few days ago, the commander-in-chief felt that his heartbeat stopped for a moment. Information uploading and dissemination are not smooth enough, which is fatal in a rapidly changing situation. ?With the mentality of almost treating a dead horse as a living horse, they activated the frequency band corresponding to this high-altitude signal relay station. Then, it was connected. Although the call quality is a little rough, the voice from the other side does come out of the receiver. The content of the report is: "A village in Balingshan Town suffered from severe waterlogging. Three families were trapped on their roofs before they could evacuate." In the following period, the reason why the frontline headquarters was able to understand the flood control dynamics in Jiangling and even the entire Hubei Province in near real-time under extremely poor communication conditions largely relied on this high-altitude balloon. ??After this experience, the commander-in-chief couldn''t help but have great expectations for another piece of equipment, the modular flood control reinforcement kit named "Xi soil". Since the disaster in Hubei Province is more serious, most local factories are unable to maintain stable production. Therefore, many of the flood control equipment supplied here are produced in Sichuan and Shaanxi. Under the urgent situation, the commander-in-chief even directly ordered to mobilize two helicopters of the Army Aviation Force, and took advantage of the light rain to transport a batch of temporarily produced equipment to Jiangling. And he himself followed this batch of equipment directly to the vicinity of the embankment. Captain Huang, have you tried out the newly arrived equipment? ?After seeing the soaked Huang Linqun, the commander-in-chief''s first words came straight to the point. "We are trying it out now. The effect of the expansion bag is as described in the instructions. After being soaked in water, it will become similar to a sandbag. Our current solution is to put two layers of impermeable plastic bags on the outside. Soldiers can take it with them to find the need. After sealing the position, remove the plastic bag. The commander-in-chief nodded. ?It seems that in just half an hour, frontline units have developed new usage that suits them according to local conditions.?????Next, its time to look at the final effect. Just a few seconds after Huang Linqun finished speaking, a person emerged from under the water. Commander, it works, it works! Give me a few more bags, and Ill go down two more times at most, and Ill be able to completely block it! Since one person can carry nearly ten bags before they are soaked, rather complex secondary processing is required before entering the water, and sealing must be ensured. Therefore, the pressure is now on the side of the people staying on the shore. . Captain Huang, now that there are so few people who need to go into the water, can we use the diving equipment? The commander-in-chief wiped the rain off his head and said. Weve already sent people to get it. It used to take a platoon of soldiers to block the mouth of a spring, and a few sets of equipment were useless. But now its enough for three people to go down, and the equipment support can keep up. ?Only twenty minutes later, several soldiers responsible for diving completed all tasks and landed successfully. Soon someone brought blankets and hot water. Before, even the people in the cooking class and the logistics department had to work in the water. Now that the pressure is less, I let them go back to take charge of their own work. Doing a good job in logistics is also a guarantee of combat effectiveness. Huang Linqun noticed the commander-in-chief''s gaze and explained. The latter walked directly over: Lets go and see the heroes who just came up. ?Seeing Huang Linqun and another person with a high status visually approaching, the soldiers who were resting under a tent made of raincloth stood up one after another. ?The sharp-eyed commander-in-chief will notice that the hands of several people holding the kettles are shaking slightly. He did not speak in the end, just looked for a moment and then turned away. What a good warrior The commander-in-chief took off his glasses, wiped them with the corner of his clothes, and said with emotion. "Yes, our regiment also has a soldier recruited from Qiong Province. He was originally a son of a wealthy family and became a soldier through connections. But before going to the embankment, he handed me a party application form, and then he never went down again. He was a soldier for several days in a row. Tiandu was responsible for the diving operations until just now. I was really worried about something going wrong, so I left him on the shore and was responsible for sealing the expansion bags, so that he could continue to go into the water without making a fuss..." The army is a melting pot, the best place to train people. Write down the names of outstanding performers and publicize them, vigorously publicize them! The commander put on his glasses again, then quickly turned around and left. After seeing the situation at the scene, he finally strengthened his determination to continue not to release floodwaters. Also, the production of new flood control equipment must be accelerated! Chang Haonan, who is far away in the capital, naturally has no way or possibility to visit the flood relief site in person, but thanks to the advancement of technology, he can still see many on-site scenes of rescue and disaster relief through TV while leading Sun Huizhong to design the DSI air inlet. . This naturally includes the thrilling work of blocking the Xunyang Embankment. ?In addition, Cao Gangchun also specifically asked the General Office of the General Armament Department to send a copy of the feedback sent to him to Chang Haonan. If the content is sensitive, we will take it over. ?This allows the latter to see a lot of content that is not reported on TV news. For example, the evaluation of Xi soil in various places. ??Of course there are some suggestions for improvement. ?For example, Jiangling hopes to put a waterproof film on each expansion bag when it leaves the factory. Although there are many bright spots in this disaster relief, judging from the feedback, there are still many shortcomings, especially at the equipment level. ?Chao Gangchun took out a cigarette and put it under his nose, smelled it, and then stuffed it back into the cigarette case: The satellite phone we imported suddenly failed to find satellite signals and could not be connected at the most critical moment. If it hadnt been for the high-altitude airship jointly developed by you and Zhejiang University, there would have been a big problem in Hubei Province. "Furthermore, we have had many helicopter pilots report that their self-purchased GPS positioning equipment has been interfered with. Some of them malfunctioned. Some of them were functional, but the position and altitude errors were seriously increased. There was even a crew in Hubei Province who rescued people after rescuing people. Because of the wrong navigation, the plane went astray, and if there were not local people on board who were familiar with the situation, it would have almost hit the mountain. " Someone is taking advantage of this opportunity to give us eye drops (End of this chapter) Chapter 388 GPS jamming, we can do it too! Chapter 388 GPS interference, we can do it too! ??When Cao Gangchun said this, Chang Haonan happened to read the specific incident feedback from the Hubei Provincial Newspaper. ?With this kind of thing, you know who is behind it without even thinking about it. ?Although there is no evidence, there is no need for evidence. No matter where in the world, whenever something bad happens, the first country that comes to everyones subconscious mind is always the same country. ?It is already obvious who the problem is. ?It cant be that the whole world is wrong, right? Besides, there is still the Galaxy incident ahead. We have caused such a big loss to the Americans in the Boeing-McDonnell Douglas merger this year. It is not surprising that they are so angry now that they will come back with some dirty tricks. ??Ding Gaoheng, who was sitting next to him, spoke with disdain, but his tone was indeed quite solemn. After all, given Chinas current comprehensive national strength, it is indeed difficult to achieve much in a short period of time in a place like the space field where money is burned like crazy. Shortcomings in long-distance communications can be made up for in other ways, but navigation and positioning are indeed inseparable from satellites. ??Although the independently developed satellite navigation system "Beidou" has been approved, it is not expected to be completed until the new century. ? And the constellation itself, which consists of only three satellites, also has a very strong experimental meaning. As for the communication satellite group, the investment required is even more exaggerated... In short, it seems that there are no countermeasures available at the moment. Cao Gangchun, who knew all this very well, could only sigh: Alas...this account still needs to be written down. Its not counted now, but it will have to be settled sooner or later in the future! Is this... ?Chang Haonan put the report in his hand on the table next to him: Although it is indeed impossible for us to create a comprehensive replacement for US satellite services within a few years, if we just want to give the other party a peer threat, there should still be hope. Ding Gaoheng had long been used to it, and he just looked over with a little curiosity in his eyes. Comrade Chang Haonan has always been relatively good at opening up ideas. ??But Cao Gangchun, who had just been transferred from the position of deputy chief of staff, was still relatively unfamiliar with this situation. He immediately sat upright, leaning on the back of the chair: Is there any way to replace GPS without using satellites? After the disintegration of the Soviet Union, although Russia still built the GLONASS system consisting of 24 satellites from 1993 to 1995, due to the short lifespan of the satellites and lack of maintenance, by the late 1990s, some satellites had begun to expire. It became increasingly difficult to maintain navigation services around the world. More importantly, due to the lack of commercialization model, they do not provide civilian services outside the CIS. At present, most domestic applications of satellite positioning systems are for civilian needs. So GPS is now a completely monopoly business. Its still a bit difficult to replace GPS Chang Haonan replied: I mean, if they can mess with satellite signals, so can we. Cao Gangchun, who felt a little unsure, subconsciously looked at Ding Gaoheng next to him, only to find that the latter was sitting on the sofa, looking like an old god. ?This time it seemed that he was a little surprised just now. ?So Cao Gangchun took a deep breath and leaned back on the backrest, making himself appear almost as usual: But we cant control the operation of GPS satellites like the Americans, so how can we do anything about it? ?After about half a second, he guessed again in an uncertain tone: Ive heard that as long as a computer is connected to the Internet, it may be controlled by others. Do you want to use this method? After all, he is the leader of the General Armament Department. At present, the army has begun the construction of an intranet that is physically isolated from the outside Internet, so he knows a little bit about this aspect. ??It''s just that it has nothing to do with Chang Haonan''s actual thoughts. Thats not the case. Hearing such outrageous speculation, Chang Haonan quickly waved his hand: "Even if you can invade the NASA network, I am afraid that you will not be able to directly control the extent of the permissions of the other party. You can break the Internet if you do nt help them ... I am talking about another method." The satellite sends undifferentiated broadcasts to an area, and the ground terminal is completely passive. After receiving the satellite signal, the terminal itself performs coordinate calculation. " "The advantage of this is that the positioning terminal does not need to send any signals and can ensure radio silence. There is no need to worry about exposing the target during the positioning process, and there is no need to rely too much on the ground station. But after all, it is one-way communication and there is no problem of interrogating signals, and the terminal itself Its performance and robustness are very poor, so it has inherent shortcomings in anti-interference and anti-spoofing capabilities. ?This time, Ding Gaoheng, who had been unresponsive just now, reacted almost immediately. ?After all, he has a background in aerospace, and he even happens to be an expert in navigation systems. You mean, we can send the positioning terminal a signal in the same frequency band as the GPS satellite, thereby interfering with its information interpretation and finally generating an erroneous position data? Chang Haonan nodded: "Yes, in theory, this principle is similar to forwarding jamming, except that it eliminates the step of the jammer receiving and deciphering the signal. It should be essentially similar to the jamming pod we previously developed for the JH-7, but Because the performance of the GPS terminal is weaker than that of the radar terminal of the fighter jet, and it does not involve the issue of frequency agility, it is much less difficult. It''s really easy to talk to an expert, it only takes a little bit of effort to get through. This principle should be no problem, but Xiao Chang, modern satellite signal receiving antennas are generally directional and will only receive signals from above. Should our jammer... also be installed on an airplane? ??Although Ding Gaoheng is no longer on the front line of scientific research, he still understands the basic situation of technological development. "Yes, yes, and if the Americans do this, they can use excuses such as satellite malfunctions to get over it. We don''t do their bullying thing. We certainly can''t target third parties. We can''t let planes fly to the mainland of the United States. Are you going to interfere?" Cao Gangchun also said immediately. "Of course it is possible to put it on the aircraft. When the 601''s domestically produced J-11 is developing a self-defense jamming pod, you can consider adding this function, which can increase a lot of efficiency in the process of fighting satellite-guided cruise missiles. " Chang Haonan first confirmed Ding Gaoheng''s idea, and took the cruise missile, which our military was most worried about in the late 1990s, as an imaginary target, instantly changing the issue of GPS interference from "simply regaining face" to "a necessity for military struggle preparations". equipment technology. You should know that although the new three attacks and three defenses of "attacking stealth aircraft, attacking cruise missiles, and attacking armed helicopters; preventing precision strikes, preventing electronic jamming, and preventing reconnaissance and surveillance" have not been systematically proposed as a concept, they have been influenced by the previous several times. Due to the impact of local wars, some key units have begun to be organized from top to bottom to conduct relevant combat method testing and training. ?In the original timeline, the final design review of the PL-11 missile was to shoot down several YJ-82 target missiles that simulated Tomahawks in the South China Sea. ??So allowing the J-11, which originally had average downward-looking and downward-shooting capabilities, to intercept cruise missiles, or through soft-kill one-to-many interception, will definitely have a huge appeal to superior units. ?Of course, this is not Chang Haonans ultimate goal. After all, with the introduction of a series of new small-caliber anti-aircraft guns such as PGZ95 and PG99, the threat of ordinary cruise missiles such as Tomahawk will soon plummet. "However, as Minister Cao said, the restrictions on the aircraft platform are still greater after all, so we can still consider using the scattering effect of the ionosphere or meteor remnants to allow jammers placed on the ground to obtain signals similar to those of satellites Of course, the specific operation method may need to be studied and demonstrated after I go back. " Cao Gangchun and Ding Gaoheng looked at each other. Chang Haonan''s idea simultaneously hits the two most critical demands of the People''s Liberation Army, namely combating cruise missiles and preventing precision strikes. Ground-side jammers can be placed at key locations such as headquarters or core positions to interfere with the enemy''s satellite-guided weapons at the very end, causing them to deviate from the target. "Well...if it can be done, it will definitely be a huge improvement for our army''s ability to resist foreign enemy interference in the new era." Cao Gangchun, who was in charge of equipment, immediately spoke and affirmed. Although his statement cannot be used as the final decision, it is obviously still quite weighty. "But two leaders, this matter cannot be urgent for the time being. We need the Americans to cooperate with us." ?Chang Haonan rubbed his hands gently. How to say? Ding Gaoheng showed a smile. He knew that whenever the other party made such expressions and actions, he was coming up with some weird idea. Given the current situation in which Americans do not take any country in the world seriously, they will definitely not be able to continue in an honest manner. I am afraid that within a few years, they will have to find excuses to fight a new war. Normally we cannot just go to other peoples homes to cause disturbance, but if a local conflict breaks out, the situation will be completely different. In the final analysis, electronic jammers are still soft-kill defensive equipment. They can be smuggled in under the name of humanitarian relief supplies or similar, catching the opponent by surprise! (End of this chapter) Chapter 389 Get a patent license in exchange for a big prize Chapter 389: Get a patent license in exchange for a grand prize ?Chang Haonans idea about satellite jamming equipment finally settled on Cao Gangchuns side. ??It''s just that we will not make independent project allocations for the time being. Instead, as the former said at the beginning, we will put them into the supporting equipment of Project 11 for advanced research and development in the name of airborne interference pods. ?On the one hand, the independent project establishment process is more cumbersome, and on the other hand, it is also considered that the movement of doing so is smaller and less noticeable. ??Military intelligence is launching a high-level internal investigation into what happened early last year. At present, different intelligence details are disclosed to all suspected targets by dividing them into blocks, and then scope screening is carried out through fishing methods. Some preliminary results have been obtained. In general, there is a mole inside. Although the previous situation analysis shows that the leaked information should be limited to the field of missile engineering, it is definitely right to be cautious. ?After various places along the Yangtze River successfully withstood the sixth wave of flood peaks, the most worrying stage of the situation has basically passed. Although for the commanders and flood prevention staff on the front line, the battle is far from over. They will still have to wait for the water level to drop below a safe height and prevent secondary disasters derived from floods. It is estimated that they will need to persist for about a while. One month''s time. ??However, judging from the results of the weather forecast, the risk of subsequent disasters will continue to decrease. Chang Haonan and the others are just relaxing a little now, but it is not half-time to open the champagne. Therefore, after understanding the overall application of his two technologies and confirming the GPS jammer, Chang Haonan was ready to leave directly. As the design of Coach 9 and the simulation software has come to an end, the workload he has to undertake in terms of technology has been much smaller recently, but as the actual person in charge of the laboratory, there are still a lot of administrative work that must be done or signed by him. Finish. And Chang Jiayaos college entrance examination results will be out soon. ?According to the normal progress, the judgment should have been completed by the end of July, but this year''s nationwide floods have still affected the progress. Just when Chang Haonan was about to get up, the phone on Cao Gangchun''s desk suddenly rang. After he picked it up, he immediately stopped the former: Xiao Chang, please wait a moment. ?Chang Haonan was a little confused, but he still stood still. Soon, a major officer knocked on the door of the room and handed a kraft paper file bag to Cao Gangchun. "This is" ?Chang Haonan looked at the thing in the other person''s hand with some curiosity. His intuition told him that this should have something to do with him. Your invention patent is about soil flood control reinforcement kit. ??Chao Gangchun said as he opened the file bag, pulled out a document inside and handed it to Chang Haonan. So fast? The latter took it and looked at it a few times, and couldn''t help but be a little surprised. ??Although special equipment for disaster relief is not listed as unpatentable like methods of diagnosis and treatment of diseases, if you really want to make a lot of money from it, it is still relatively hot to get this kind of money. ??It would be fine if he was just an ordinary business owner or researcher, but Chang Haonan also holds many influential positions in the form of special affairs. In this kind of place, you should pay more attention to your image. Moreover, the scale of this year''s flood is even larger than that of 1998 in the previous life. It is a major event that will definitely be recorded in history. At this juncture, in terms of his indirect contribution to disaster relief, patent fees are actually the most important. Unimportant stuff. It is far better to show some integrity and use this money in exchange for a higher level of influence. So at the beginning, Chang Haonan didn''t even think about this issue too carefully. But after some careful consideration, he still felt that the patent should be registered. Not only register, but also register in his own name, not in the name of the project team. First of all, this is the lesson learned from Yunnan Baiyao. ?He didnt register, and if someone took advantage of the loophole to register and use it to make money, it would be a huge loss. On the other hand, this patent is also proof of his contribution to this flood relief. Even from a more utilitarian perspective, registering a patent and then licensing it to companies and factories involved in the production of disaster relief materials for free would have a greater impact than keeping silent at all. So, on the day when the two design drawings were submitted to the Commission of Science, Technology and Industry for National Defense, Chang Haonan raised the patent issues related to these two things. ?Of course, the starch-based water-absorbent polymer contained in the expansion bag is not his work. Fortunately, this can also be replaced by other absorbent materials with similar properties, so it will not affect the validity of the patent. ??However, having worked in research for two lifetimes, he is very aware of the working efficiency of the patent office. It will be considered quick to pass the review within three months. So I didnt pay much attention to the progress after that. ??Anyway, with his current status and the influence of "Xi soil", there is no need to worry about getting through. But Chang Haonan was shocked that the entire process had been completed in just a week or so. Cao Gangchuns answer is very direct: Lao Ding and I came forward and directly contacted the National Science and Technology Commission and asked them to expedite the matter. Chang Haonan understood instantly. ?At this time, the Huaxia Patent Office was still an organization managed by the State Science and Technology Commission. It was not a unit directly under the later gwy, so it was directly led by Song Jian. With this relationship, the efficiency will naturally be very fast. After confirming that the patent document was correct, Chang Haonan immediately expressed his intention to issue a free license: Minister Cao, Director Ding, considering the special nature of disaster prevention and rescue supplies, I am not prepared to use this national treasure, so I want to make a conditional authorization statement. All enterprises and individuals within mainland China can use all relevant patents related to the Xi soil flood control reinforcement kit for free, but the condition is that they cannot make profits through this patent, otherwise they will still have to pay the licensing fee as usual. After hearing these words, Cao Gangchun''s eyes lit up, while Ding Gaoheng''s expression was "It''s just as I expected." The latter had long expected that, given Chang Haonans character, registering a patent must be to facilitate his own free licensing. So he had already thought about the following things before: Xiao Chang, dont rush about the patent authorization statement. Ill report it to you first. You may be required to cooperate with the publicity department and publish it at the appropriate time. ?There is always something to pursue in a person''s life, no matter whether it is noble or vulgar. ?Now that Chang Haonan has made it clear that what he wants this time is not money, he obviously has other ideas. As for the specific aspects, it is not difficult to guess: If nothing else happens, in addition to the special commemorative honors after the flood fighting is over, next years National Science and Technology Award should also be indispensable for you. Then the following matters will be troublesome to the two leaders. ?Chang Haonan showed a satisfied smile. At this time, the highest science and technology award has not yet been established, so the only one he may be eligible for is a technology invention award. As for the evaluation principles of this award, in addition to the fact that it must be a technology that has not been invented by previous people as the name implies, there are two other principles. They are advancedness and creativity and significant economic benefits or social benefits respectively. In terms of the advanced nature of Xirang''s equipment, Chang Haonan can honestly say that it is just that. Mainly a question of thinking. ?Compared with the special or first prize-winning achievements such as "Indica hybrid rice", "Latified swine fever attenuated vaccine", "High-yielding and rust-resistant wheat germplasm resources", they are somewhat less interesting. Therefore, we can only work **** economic benefits or social benefits I put forward my achievements to help the country overcome such a big difficulty. You must express it accordingly, right? Its just that we are all decent people, and there is no need to explain some things so clearly. After being briefly surprised, Cao Gangchun quickly realized Chang Haonan''s intention, and immediately nodded and assured: "Don''t worry. Although we don''t have the final say on this matter, there is still a chance to talk. Just go back and wait for the news." Brothers, recently my own project also requires year-end settlement and mid-term progress defense. Since the author is not as capable as Director Chang, he still has to put in some effort. I really dont have time to add more updates recently. I will add more after these few days of busy work. (End of this chapter) Chapter 390 Two interviews in three months? Chapter 390 Two interviews in three months? Since the nationwide flood fighting and rescue operations at the organizational level are still ongoing, according to the process, it is indeed not yet time to release the settlement screen, so Chang Haonan can only temporarily reconcile with the two leaders today. As for how much we can gain in the future, it depends not only on individual efforts, but also on the historical process. ?However, the efficiency shown by Ding Gaoheng and Cao Gangchun in this matter is indeed quite amazing. Two days later, Beijing Hang University Supercomputing Center. Chang Haonan and several other core technical personnel responsible for the overall design of the software and module function writing are gathering together to listen to Sun Huizhongs report on the overall aerodynamic design optimization of the new advanced trainer aircraft. Compared with the previous project of Professor Rui Xiaoting of Jinling University of Science and Technology on overall system dynamics analysis of long-range rocket launchers, what Guizhou Airlines is doing here is a more complex aircraft design. Although the calculation amount is not necessarily higher than the former, it is The advantage is that they are basically applied to almost all functions designed for software at this stage. And the trial version is also closer to the public beta version that will be launched for users soon. Although under the management and supervision of Chang Haonan, this set of things will definitely not have any major problems in the core numerical calculation methods and operating logic, but as a software, a user-oriented commercial software, in order to obtain a true sense of These core-level factors can only account for at most half of its success. The other half is user experience aspects such as human-computer interaction, I/O design and compatibility. This is also a part that the system is completely unable to handle. Most of the members of Chang Haonan''s project team are developers who major in computer science or applied mathematics and have little experience in the pain points of industrial software applications. However, Chang Haonan leads the entire development process and is too familiar with the software. It is so high that even if there is a problem, it is likely not to be experienced. ?It''s like writing a paper. Even if the author checks it ten times and hands it over to another person, he can often find new clerical errors. At this time, Sun Huizhong was standing in front of a blackboard, introducing the design process of the entire aircraft, while Chang Haonan was sitting below for the first time, opening a small notebook and taking notes. When he first started speaking, the former''s tone even trembled with excitement. After all, there are not many opportunities to give lectures to big bosses like this. Let me first introduce the overall design process of this type of aircraft, as well as the key technical indicators... "Compared with the J-7F aircraft, the overall structure after the 5845mm position remains unchanged, while the front is redesigned and uses the most cutting-edge DSI air inlet and nose retractable side strips to ensure that the angle of attack is 70. Maneuverability within range "The design points of the inlet are: the maximum Mach number Ma=1.3; the pre-compression bulge equivalent compression half-cone angle is 20; the height is 11km and the capture area is determined based on this. When the engine is in the maximum state within the range of Ma=0.7-1.1Ma The flow rate determines the throat area, and the throat Mach number is controlled at Ma=0.5-0.7..." "Considering that my own technical level is relatively limited, and that this model is improved from a mature and active model, I mainly used more traditional calculation methods throughout the design process, such as in the steady state of the whole machine. The improved surface element method is still used in the calculation of aerodynamic force. However, in the process of calculating the local convex hull curve of the DSI inlet, we still try to use the new nonlinear partial differential equations dimensionality reduction method provided in the software to calculate the N-S Equations are solved numerically Following Sun Huizhong''s introduction on the stage, the following people, especially those who had participated in some actual projects, began to write furiously. For a while, apart from the voice of the former speaking, there were only the occasional pages turning in the notebook or the keyboard while typing. Knocking sound. ?Due to the lack of previous experience in giving presentations on stage, Sun Huizhong''s introduction was somewhat indifferent, so it took a lot longer than expected. ?But in the end he finally said what everyone wanted to hear. Just as Sun Huizhong was preparing to finish, there was a sudden knock on the door of the conference room. ??Outside stood an administrative teacher from the supercomputing center. Director Chang, there is someone looking for you outside. Generally speaking, outsiders cannot enter the computer room area without permission, so someone needs to report it. As for the other party to come directly into this kind of meeting, it is obviously impossible for it to be just anyone. Still have to go down and have a look. Fortunately, the really valuable content in the entire report has come to an end. As for the ending part... Its okay not to talk about it. ?So, just after he stood up and announced that the meeting would be suspended for a period of time, Sun Huizhong on the stage was almost instantly surrounded by several people who had been eager to try from the beginning. Gong Sun, do you think there is any room for improvement in the user interface of our software... Do you think the new fully automatic meshing method is easy to use... Is the technical instruction manual we included with the software comprehensive? Which multi-objective optimization strategy did you choose when designing... The questions that kept ringing in his ears made Sun Huizhong''s head feel as big as a bucket. Fortunately, before Chang Haonan left the venue, he didn''t forget to line up the engineers who were eager to ask questions about the modules they were involved in. This gave the former time to ask questions one by one. respond. Huhso it turns out that Director Chang faces this kind of scene after every meeting Sun Huizhong, who finally breathed a sigh of relief, thought this way. On the other side, Chang Haonan, who was leaving the conference room, took out his mobile phone from his pocket and took a look. As expected, there were several missed calls. He muted his voice during the meeting just now, so he didnt even answer the call. It seems that the other party had no choice but to come directly to the door because he had not been contacted. ?While thinking about this, he had already arrived at the reception room near the entrance on the first floor of the supercomputing center. Several people are sitting inside. Chang Haonan actually knew one of the leaders - ??It was the CCTV female host who came to Beijing Airlines to do an exclusive interview with him just a few months ago after he won the China Youth May 4th Medal. Seeing Chang Haonan walking in from the door, the other party members immediately stood up. For this meeting, I should call you Director Chang. Good afternoon. The two shook hands. ? Even though Ni Ping was experienced and well prepared, he still couldn''t help feeling emotional when he faced Chang Haonan again. Others may not know the latters true age, but she knows it. After all, just three months ago, the other party was still an undergraduate student at Beijing Hang University. Calculating the time now, it turns out that not long after graduation, I have already started to hold leadership positions in the field of scientific research. Its simply outrageous, no one can rise so fast on a rocket. Ms. Ni, I havent seen you for a few months, but you are still as brilliant as ever. Chang Haonan is now a little used to this kind of scene, and knows that the best way to deal with it at the moment is to change the topic: I wonder how I can help this time? I have received a request from above to conduct another exclusive interview with you. The topic is about the set of flood-fighting and disaster relief equipment you developed, so I have no choice but to come here to bother you one more time. Ni Ping added an accent to the word "Zai". Indeed, even in the entire history of central media, it is rare that the same person is interviewed twice within three months, and it is because of completely different things. ??Although Chang Haonan''s contribution this time is indeed not small, the fact that even official publicity can be arranged so quickly is probably inseparable from the work done by Ding Gaoheng and Cao Gangchun. For Chang Haonan, who has already had a similar experience, doing interviews is already a familiar task. Facing the camera again, he didnt feel as nervous as he did at the beginning. Then lets start now? ?Chang Haonan took advantage of the situation and sat opposite Ni Ping. You may have to appear on camera this time, so you should put on a simple makeup first, otherwise your face will be very dark. The latter immediately called the accompanying makeup artist. As Chang Haonan holds more and more positions and can mobilize more and more resources, his existence cannot be hidden. ? And the MA-60 project and aircraft anti-icing research, which had been used as shields before, have gradually failed to keep up with his progress. It just so happens that his contribution to the flood relief process this time perfectly meets the requirements for a "public reason for promotion": the influence is large enough, the research content is not sensitive, and there are very few people who know the inside story. ?Hence, it is normal to publicize it in a big way. ?This interview was much shorter than the previous one. Even including makeup and additional shots, it took less than forty minutes in total. ?Although the time is short, there is a lot of information in it. Especially focused on the glorious deeds of Chang Haonan, who made up his mind to license the patent to a manufacturer of flood control materials for free after learning about the flood. ?Of course, all the fragments in this story are true and there is absolutely no fabrication. ??It''s just that the order of occurrence has been slightly adjusted to highlight the high integrity of the interview subjects. As a principled person, Chang Haonan still hopes to fully restore all the facts. ?However, the other party insisted again and again, so he reluctantly agreed... ?In addition, some other news was revealed during the interview. ?For example, not only the front-line disaster relief officers and soldiers were full of praise for "Xi soil", but also the commander-in-chief of the entire river basin of this flood control mission also favored it. ?After the soil was successfully used to fill the Paoquan mouth of Gangneung Embankment, the latter not only asked the factories to quickly increase production, but even wrote an inscription in his own hand. Furthermore, in the phased report submitted above, a whole chapter was devoted to introducing the important role played by soil in flood relief. ?This is obviously huge good news for Chang Haonan, who has made up his mind to earn some influence for himself through this matter. (End of this chapter) Chapter 391 JJ9, and the multi-field simulator TORCHMultiphysics Chapter 391 Jijiao 9, and the multi-field simulator TORCHMultiphysics ??When Chang Haonan sent away the CCTV camera crew and returned to the conference room, the crowd surrounding Sun Huizhong had basically dispersed. ?Only Yao Mengna and another engineer from the Structural Strength Institute were still communicating with him, but the topic had changed to aircraft design and was no longer related to the software. In general, judging from Sun Huizhongs reaction after using it, this software is already quite complete, but it still needs to make the design of the UI interface and menu bar more user-friendly, and provide more detailed teaching. . He even said that if the tutorials that come with the software are inconvenient to be too large, then a detailed technical manual can be published and sold separately, so as to have the best of both worlds. ? ? In this era where even computer games come with paper strategy books (often as a means to prevent piracy), Sun Huizhongs idea is actually not outrageous. This is how a lot of software makes two bucks. However, Chang Haonan''s idea is still more advanced. The price of the product he sells already includes services. Moreover, when the software is first released, the main purpose is to promote the user range, so he finally decided to include a CD with the genuine software. version of the tutorial. Whether its useful or not is another matter, at least the gesture must be sufficient. Subsequently, Chang Haonan called the persons in charge of each module together and asked them to make another overall modification to the software front-end based on Sun Huizhong''s feedback and prepare for pre-packaging. If nothing else happens, the first public beta version of V0.1.0 will be released after this modification is completed. However, due to the limited penetration and quality of the Internet at this time, real-time online updates cannot be achieved. Therefore, even if it is a beta version, he must ensure that the software has basic stability and usable functions. It is impossible to be like some companies in later generations. First release a version with extremely poor stability to make money, and then slowly fix the bugs through updated patches. ?Furthermore, the number of companies and institutions that have submitted applications to participate in public testing has exceeded 100, far exceeding Chang Haonan''s initial expectations. They still need to focus on producing a batch of installation CDs and activation codes. All in all, it may take about five to seven days. ??Its just that there are not many parts of this work that Chang Haonan needs to be personally responsible for. Mr. Chang, speaking of which, our software doesnt seem to have a formal name yet? After all the tasks were assigned, someone suddenly raised such a question. Yes, Mr. Chang, its up to you to come up with the name of the software. There is also the logo of the software, which must be decided by Mr. Chang. Others quickly echoed. Is this... Chang Haonan has thought about this problem before: "I think our future company should become China''s pioneer and leader in the field of industrial and commercial software. From this perspective, I think the name can be called the ''Torch'' Group. In this case, as the company''s first operating company A software, icon and LOGO can all be made into the shape of a torch. As for the name of the software, our main selling point is that it can handle simulation calculations of multiple physics fields at the same time and perform multi-disciplinary optimization in parallel, so in order to make people intuitively feel this advantage. Chang Haonan said this, picked up half a piece of chalk from the side, walked to the blackboard that Sun Huizhong had just used, and wrote a few big words on it: Its better to call it the Torch multi-field simulator. Then he added a line of English below: The corresponding English name is, TORCMultiphysics. The two names, as well as the LOGO design proposal, were unanimously approved without any doubt. ??Anyway, as long as you can build a company in the end, someone will naturally explain the meaning of the name to you, even if the name is completely arbitrary. Just like BYD=buildyourdream. ??Moreover, although it may not sound domineering enough, if you think about it carefully, it seems that the names of peers such as "google", "Microsoft", and "ANSYS" are also that virtue. ?So everyone quickly accepted this setting and got up to go back and do their own thing. Only the person in charge of the front-end design asked Chang Haonan if he needed to find someone to design the logo. The latter thought for a while and said there was no need to spend the money. Then he found a piece of paper nearby and drew a somewhat abstract version on it. Fortunately, its not ugly. Then he drew the artistic word "torch" underneath. After all, on some occasions, the company name still needs to be displayed. ?Although Chang Haonan''s painting talent is limited, LOGO design mainly depends on one idea. He will definitely find someone to convert it into a PNG image format later, so he doesn''t need to worry about it. ?After sending away the group of people responsible for software development, Chang Haonan found Sun Huizhong, who was sweating a little because he had just answered the questions intensively. Sun Gong, what are your plans next? The basic design of the advanced trainer aircraft has been completed. According to the normal process, the next step should be to blow the wind tunnel, optimize the details and prepare for prototype production. However, the project of higher education aircraft has not yet been officially approved. After all, Guizhou Airlines is not as rich as Chengdu or Shengjing, and its own hardware conditions are also very poor. It is difficult to complete these processes with self-raised funds. I am still planning to go back to Qian Province with Xiao Lin first. Although there is no funds allocated yet, we can let Yunma Factory increase its production capacity according to the design requirements first. Sun Huizhong looked at the aerodynamic and structural design drawings on the laptop in front of him and replied. Even though he thought he was mentally prepared for Chang Haonan''s level, being able to completely finalize the overall design plan of a new aircraft in such a short period of time still gave him a rather unreal feeling. Although TORCHMultiphysics is not a professional digital manufacturing software, during the structural design process, it reserves space for aircraft assembly gap coordination and digital padding compensation, which greatly improves the efficiency of digital production improvements. ?However, for Guihang, which has been building the JJ-7 before, the technological requirements for this "quasi-third-generation aircraft" are a leap forward, and it will still take them a while to adapt. Thats good. After all, this model of yours needs to be used for technical verification of the new air inlet of Project 10. I estimate that after the first flight in Chengdu, the project approval should be completed soon. Chang Haonan nodded and replied: "However, after the project is completed, you still have to show some efficiency and try to build the prototype as quickly as possible. With the current flight performance of this aircraft, especially the maneuverability at large elevation angles, if you can do it in time Participating in next years Farnborough Airshow should directly increase the visibility of our airline, which will have a positive impact even on domestic orders. In this day and age, Chinese people still attach great importance to the opinions of foreigners. There is no way, due to the limitations of the times, in the late 1990s, Europe and the United States were indeed highly developed. ?Hence, even if the products are mainly for the domestic market, they are often willing to go overseas to get gold plating at some unknown expos, so that they can increase their value a lot when they come back. Not to mention an influential exhibition like the Farnborough Air Show. ??If you can amaze everyone with your skills on such an occasion, even the final assembly will take a high look when making purchase plans. ?Furthermore, judging from the naming of Guihang as FTC2000, they had plans to sell overseas from the beginning. Then its even more important to go out. Dont worry, Mr. Chang, our entire Guizhou Airlines, from the chairman to the grassroots employees, are waiting for this model to save lives. As long as the prototype is funded, I guarantee with my head that there will be no problems with speed and quality! ?Sun Huizhongs tone was decisive. (End of this chapter) Chapter 392 Ownership of large bypass ratio turbofan project Chapter 392: Ownership of the Large Bypass Ratio Turbofan Project Because of this sudden large-scale flood, many originally planned plans had to be postponed, such as the college entrance examination marking in many provinces, the first flight of Project 10, and the progress of the delivery of J-8C fighter jets from Factory 112... ??But if I have to say it, its not entirely like this Since the work of many factories and subsidiaries under the aviation industry system has been affected, many researchers who were busy working on projects have been idle for the first time. ?This has resulted in meeting times that were difficult to coordinate before becoming no longer a problem at all. So, after the weather cleared up a little and the waterlogging and flooding situation in various places had stabilized, Liang Zhuoping, who had already made relevant preparations, found an opportunity to meet with Chang Haonan and asked whether he should simply turn over the Chinese aviation engine industry. Invitations to the conference are sent out. Anyway, spanking a child on a rainy day is nothing but idleness. ??How about taking this free time to go to the port city to have a meeting together. ? During this period, Chang Haonan has been busy finishing work on flood control equipment and software, but he doesnt have much energy to pay attention to the developments in aviation development. Hearing the news today felt a bit sudden: Mr. Liang, as Director Ding said before, the negotiations to introduce D436T1 engines from Russia have ended? He still remembered that the last time the three of them met, the final result of the discussion was to wait until the matter was settled before meeting again. ?Liang Zhuoping nodded and put down the thermos cup in his hand: "Absolutely. The conditions of the three parties have basically been determined. The specific form of technology introduction is similar to that of Project 11. The four engines that have just been used for ground testing and the production of the first prototype are from the factories in Moscow and Ufa. Import the entire unit for assembly, and then gradually transition to our production of all parts except the core engine. After completing the order for 300 engines in this way, we will transfer all related production tasks, and finally achieve the parallel production of the Russian version on both sides. and the Chinese version of two products of the same model and different specifications..." At the same time, the engine designer Ivchenko Company will also connect with our supporting research institute, gradually transfer the complete design plan, and cooperate with us to continue to improve this engine. This...has indeed been quite beneficial to us. ?Chang Haonan was even a little surprised after hearing the specific details of the agreement. This condition is no worse than the previous Project 11. You must know that this is the field of aviation power. China has always had a shortcoming, and it is also the part with the lowest bargaining power in foreign cooperation. ?If I have to say it, it may only be explained that the strategy of killing three soldiers with two peaches is working, and the Turbojet 14 that he developed last year really shocked the Russians: So which group of factories here is responsible for the development and production of D436T1? ??The reason why he asked this was because he felt that he could take advantage of the opportunity of the aerospace engine industry conference to allocate some resources to the factory that had undertaken this big job. It hasnt been finalized yet. ??Liang Zhuoping said and took out another piece of information from his bag and handed it to Chang Haonan: "Last time I saw that the report you gave to Director Ding was very detailed, so I won''t talk to you anymore about the situation and level of various aerospace power-related factories in our system. In short, except for the 606 Institute and Liming Factory, In addition, the other companies certainly do not have the ability to complete this kind of project on their own right now, but Shengjing has to concentrate on the research and development of the turbofan 10 and the production of the turbojet 14, and I am afraid that they will not be able to spare it in a short time. energy." "So, what Director Ding means is that in this matter, we must cooperate with Comrade Haonan in the work you are preparing to deploy at the aviation engine industry conference, and make decisions based on the resources allocated to each factory on the turbofan 10 project. Who will be responsible for the localization of D436T1? The latter took the information and almost burst out laughing ?This wave, everyone is thinking about this wave. ??Although there are many institutions in China that are building aircraft engines on the surface, the only ones with complete R&D and production capabilities are Jianning and Shengjing. But the latter mainly uses turbine shaft and turboprop power. Although it has the same principle as the turbofan, the specific technical route is still very different. Besides, the strength is also very weak. ?In this way, technical assistance is required to proceed, so it would be better to hold it together at the Aviation Industry Conference. ? Its just that even Chang Haonan himself didnt expect that Ding Gaoheng would directly let himself have the decision-making power on this matter. The information in his hand is some technical capabilities required during the final assembly of the D436T1 engine. As a quite advanced high-bypass-ratio turbofan engine, even if it is just the final assembly, it is definitely a big challenge for Huaxia Aviation Manufacturing Factory, which has only produced turbojet and even piston engines in the past. From the perspective of technological continuity, Factory 430 in Hokyung is undoubtedly the most suitable to take over the production task of the D436T1 engine. They were responsible for producing the turbojet 8 engines used in the H-6 in the past, and they have some experience with medium-bypass aviation engines. They also have the Sibei MK202 on hand, which is the turbofan 9, the only seedling of Chinese turbofan aviation engines. At least it has Relevant industrial foundation. Although Factory 430 does not have a dedicated research institute, they have built up a technical team of their own in the process of producing and improving turbojet 8 over the years. It is always worth cultivating. ?Furthermore, Haojing is relatively close to the capital and Shengjing, which is also a small advantage. So, while turning the information to the last page, he basically made a decision. If nothing else happens, I will consider tilting the opportunity to participate in the turbofan 10 project towards the 430 factory. ?Chang Haonan closed the information in his hand and returned it to Liang Zhuoping. ?He believes that the other party will definitely understand the meaning of this sentence: When the Seiko Plan was launched at the end of last year, Factory 430 sent many engineers to Shengjing to participate and learn. Not to mention how much knowledge they can gain, at least they will have richer experience in connecting with Factory 410. "In addition, because in the Turbofan 10 project, almost all technologies are brand new to us, and the risks are too high, so I have previously considered incorporating some key technologies, especially engine manufacturing technology, into the domestic production of Sibei MK202. model, that is, the technical verification of the turbofan 9 in advance, on the one hand, it can share the risks, and on the other hand, it can also speed up the research and development progress. This originally requires in-depth cooperation between the 606 Institute, the 410 Factory and the 430 Factory, and it is just in time to take advantage of this Opportunity to build our own second aero-engine industry base. ?Chang Haonans explanation is well-founded, so Liang Zhuoping has no objections: Okay, then I will make detailed arrangements after I go back. After all, Haojing was mainly responsible for the production and research and development of large and medium-sized aircraft in the past. Now that China''s large bypass ratio turbofan engine is placed here, it can be regarded as a close-knit platform: By the way, theres also this. Before leaving, Liang Zhuoping handed Chang Haonan a beautifully printed paper envelope: The invitation letter to the meeting and the attendance certificate. Although I have given your photo to the comrades in charge at the scene, these should not be used, but it can still be kept as a souvenir. I have a hunch that this meeting will probably become a landmark event in the development history of Chinas aviation industry! The next chapter needs to be revised and may be posted later. (End of this chapter) Chapter 393 The first year of China’s aerospace engine industry! Chapter 393 The first year of Chinas aviation engine industry! ??Liang Zhuoping would say this so bluntly. On the one hand, he is eager to get closer to Chang Haonan, so he compliments him. On the other hand, he does take into account the latter''s brilliant resume in the past. ?? After meeting Chang Haonan for the second time in Ding Gaoheng''s office, Liang Zhuoping, who had learned from the painful experience, quickly found all the project information that the other party had participated in and read it for several days. Finally, it was discovered that as long as Chang Haonan participated in the project, it would be "successfully completed according to plan" at the end of the day. You may get some unexpected surprises if you are not careful. ??And not just at the technical level, Chang Haonan also seems to have some amazing judgment in the overall direction. ??Whether it is using domestic laws to initiate a compliance investigation into the Boeing-McDonnell Douglas merger, or using its own aircraft anti-icing technology to cooperate with the EU, it has ultimately proven to be a highly rewarding choice. In short, its just two words, awesome. In fact, Liang Zhuoping had heard some rumors before, saying that the reason why Ding Gaoheng, who was supposed to leave his leadership position, could continue to take over as director of the Commission of Science, Technology and Industry for National Defense was largely because Chang Haonan made too much noise. The superiors felt that at this time We should seek stability and not change generals on the spot. Although there is no evidence, in general, the degree of truth of such rumors is often frightening. What''s more, Cao Gangchun, who was originally expected to take over the Science and Technology Commission, was idle for more than a month after resigning as deputy chief of staff, and then was appointed as the director of the newly formed General Armament Department by Lightspeed. This is also quite an abnormal situation. ??Anyway, Liang Zhuoping believed it. In this case, he almost naturally came to the conclusion ?Hold Chang Haonan''s thigh tightly, which should help him sit more steadily in his current position. ?Hence, it is not surprising that he chose to unconditionally support any of Chang Haonans claims. After all, the most solid relationship is when the interests of the two are completely tied together. ?Of course, Chang Haonan didn''t know that, and he didn''t care much about Liang Zhuoping''s little Jiujiu. As the chairman of the Aviation Industry Corporation of China, the latter was considered unattainable to him a year ago, and he could be considered an important figure half a year ago, but now... ?Although he has not fallen to the level of a cat or a dog, he is basically on an equal footing with him. ??With the support of Ding Gaoheng and even higher-level officials, Liang Zhuoping, as a manager caught in the middle, has even less impact on specific projects than grassroots engineers like Lin Shikuan and Sun Huizhong. This is why many far-sighted companies, even if they want to reduce costs and increase efficiency, tend to use middle management first. Because the absence of these people will not have a too bad impact on the operation of the organization. At most, the top managers need to do it themselves, which increases their workload. On the other hand, some **** companies always start from the grassroots level when laying off employees. In the end, the number of employees who actually work is reduced sharply and people''s hearts are floating, which affects the company''s core business. As a result, it neither reduces costs nor increases efficiency, and eventually becomes vicious. cycle. Three days later, Hong Kong City. As an officially-stamped and well-known coastal tourism, leisure, and resort destination, it has long been known as a health resort and a conference capital. Many official or business meetings will be held here. The local international conference center is also relatively busy almost all year round. Even the recent floods do not seem to have had any particularly obvious impact here. The distance between Hong Kong City and the capital city is less than 300km. It must be too much trouble to fly, so Ding Gaoheng directly sent a special car to Chang Haonan to take him directly to the main venue. Even though Liang Zhuoping had previously said that he could scan his face throughout the process, Chang Haonan still brought an invitation letter and attendance certificate to avoid embarrassing situations where someone could not recognize him. ?However, when he got off the car and entered the International Conference Center, he found that he had underestimated his influence within the aviation industry system. Mr. Chang! Almost immediately after Chang Haonan entered the door, he heard a familiar voice coming from not far away. ?Looking around, there were several people in suits standing there. Among them is Zhong Shihong, director of the technical department of Factory 410, who is already very familiar with Chang Haonan. Minister Zhong, long time no see. ?Chang Haonan stepped forward and shook hands with the other party. Mr. Chang, Comrade Shihong has been promoted to the deputy general manager of Liming Engine Company (the formal name of Factory 410 at this time). Someone next to me joked with a slightly humorous tone. Oh? The title should really be changed. ?Chang Haonan also responded with a smile. Hearing this sentence, Zhong Shihong quickly waved his hand: "No, no, no, this is all thanks to Mr. Chang. If there weren''t so many orders for the Turbojet 14, and without the quality improvement brought about by the Seiko Plan, let alone promotion, my head of the technical department would be embarrassed to continue. Get on with it." Mr. Chang, youd better call me Comrade Shihong, or Zhong Gong. ?After a brief exchange of greetings after the meeting, Zhong Shihong also introduced several other people next to him to Chang Haonan. This is Comrade Liu Yongquan, who has been responsible for the pre-research work on the third-generation turbofan engine project at the 606 Institute. First of all, it was the first person who talked to Chang Haonan just now. Judging from his appearance, this person should be about thirty years old, but his bald head is extremely conspicuous in the crowd, and it directly adds to his overall temperament by at least ten years. Hello, Mr. Chang. Liu Yongquan also put away his joking tone and shook hands with Chang Haonan: "When the turbojet 14 was improved last year, I heard your name, especially the method you proposed to control the flow inside the high-pressure compressor Ye Shan. It was a revelation to me. Recently, In the past six months, I have also conducted a lot of research on the design of high-aspect ratio blades. I will give a report at the meeting soon, and I hope you can give me some advice. " Obviously, this person is one of the many researchers who have been influenced and inspired by the latter. It sounds like Mr. Liu is very familiar with my work last year. Chang Haonan himself was a little surprised. After all, Zhong Shihong said that the other party had been responsible for the pre-research of the Turbojet 10, but his understanding of the specific work content of the Turbojet 14 project was as if he had personally participated. I feel ashamed to say that after I first heard your name, I took advantage of your meetings to sneak in and listen in a few times. I really benefited a lot. Liu Yongquan touched his bald head awkwardly and replied. Although scientific research units do not engage in mentoring and mentoring like guild organizations in the past, this kind of thing is just like attending a meeting of other people''s research groups without permission. ?Although it does not violate any rules, if you meet a tutor who is more sensitive to this aspect (especially those in the material science field), you will still be unhappy. Those who have a bad temper may drive people away directly. ?Of course Chang Haonan definitely didn''t care. He wished that when he explained the plan, engineers in the entire aviation industry system could hear it simultaneously. There is another person Chang Haonan had a relationship with before. Zhang Zhenhua, the technical director of the 430 factory, is now responsible for the production process of the domestically produced turbofan 9. ?In addition, there were also engineers who came from Bingcheng, Zhucheng, Rongcheng, Jianning and other places to attend the meeting. Most of them, like Zhang Zhenhua and Zhong Shihong, are technicians in production units. For this meeting, our factory sent a total of nearly 50 people from grassroots management to technical backbones. ?After introducing the people around him, Zhong Shihong pointed to the interior of the venue where final preparations were being made before the opening: "There are also about thirty or forty people from the 606 factory, and almost the same number from the 430 factory. In short, Mr. Chang, your appeal is really good. I have never seen so many factories at the same meeting. Even Bingbing Chengcheng 122 Factory and Cidu 372 Factory, helicopter main engine factories that have little contact with us on weekdays, have sent representatives. As for 601 Factory and 112 Factory, they are not to mention. I heard that this will be yours. I mean, apply directly to the head office to request participation..." Original plant? Even Chang Haonan was stunned for a moment: I remember that this time I organized an industry conference on the aviation power industry... There are only other factories that have good personal relationships and close business ties with him, but the main businesses of Factory 122 (Zhi 5/Zhi 9) and 372 Factory (Zhi 8) are the production of helicopters. From the design, development principles and classification There is a big difference between the upper and fixed wing, because the two parties have not had much contact before. Fair hair does not separate families. Liu Hongming next to him explained: I have a college classmate who is the representative sent by Factory 122 this time. Another person echoed: Yes, some people have said before that 1997 may be a milestone for our Chinese aviation engine industry and the beginning of a new era. The invitation we received this time also said witness the first year of Chinas aviation engine industry There are so many people here, at least it means that everyone either pays high enough attention to him as a person, or pays high enough attention to the aero-engine industry. In short, it is a good thing. But the too abundant rainbow fart still makes Chang Haonan a little unable to bear it. In the end it was he who changed the topic first: By the way, Mr. Zhong, according to what you just said, our 410 Factorys production speed of turbojet 14 should not be low anymore? ? Being able to promote him, a technical director who is not yet old and has not yet come from within the aviation industry system, to the position of deputy general manager, obviously shows good results. "It depends. If we compare it with before, the production efficiency is indeed higher because the yield rate has increased a lot. Now we can deliver at least 15-20 turbojet 14 and turbojet 14B every month, but compared with the order demand, "It''s still a bit slow. Workers work overtime almost every day. Our new general manager Lin Zuoming is even considering adding a new production line to ensure supply." This is pure Versailles. Several engineers from other brother units nearby showed envy and hatred. Same world, different worries. The orders in their hands are so small that they can only give workers a rotating holiday, but others are too busy to finish the work? ?Chang Haonan did not expect this kind of plot to unfold: Is the production capacity of Plant 112 and Plant 132 so high? Can 20 engines be used every month? 20 engines are equivalent to 10 J-8Cs or 20 J-7Fs per month. Even if they are split in half and calculated as 15, it is a production rate that Chinas aviation industry cannot even imagine today. More than. Zhong Shihong waved his hand: "About one-third of the goods are sent to Persia to overhaul and improve their F4E. Now there are dozens of people in Factory 112 stationed there, and they can completely overhaul 2- All three aircraft have twin engines and consume a lot of money. "I see" Chang Haonan suddenly understood after hearing this explanation. Obviously, under his operation, China actually became a net exporter of aircraft engines in 1997... ?From this point of view, the statement just now about "the first year of the aero-engine industry" is not entirely a propaganda slogan. (End of this chapter) Chapter 394 One person drives an industry Chapter 394 One person drives an industry By the way, I remember that the Persians asked us to improve the F14 before. When it comes to the Persian Air Force, Chang Haonan also recalled the situation a few months ago, so he asked Zhong Shihong: So, are you already upgrading the TF30 engine? No matter how you say it, the F14 is an aircraft from nearly 25 years ago. Even if China is not as good as the United States in terms of comprehensive development of the aviation industry, there will be no problem in most places if it wants to renovate or improve such an old model. The only trouble is motivation. Although the TF30 engine performance is very good. But again, it is a serious turbofan. ??And the main flaws are the unreasonable design of the compressor and poor matching of the flying engine. The production and manufacturing process is still quite good. So it cant be said that it is easy to upgrade TF30. It hasnt started yet. In fact, even the specific improvement plan for power has not been determined yet. Zhong Shihong shook his head: "We just shipped a TF30 from Tehran some time ago that has reached the end of its life. We are inspecting the situation. In short, because there is no original technical data at all, it is really difficult to upgrade the technology. We are currently discussing with the other party whether it is simply a life extension maintenance. , or simply wait until the domestically produced turbofan 9 is produced and then give them a new engine. The prototype of the turbofan 9, the SPEI MK202, has an afterburning thrust of 9.2 tons, which is slightly smaller than the 9.4 tons of the TF30-P-412. However, the former still has considerable potential for increasing thrust. The key point is that the performance under working conditions must be much more stable, at least There is no need for pilots to practice the art of shutting down and restarting a surge engine during maneuvers before takeoff. In addition, the length and diameter of the turbofan 9 are smaller, which not only meets the fitness requirements, but can even be the same as the F4 after the engine change, saving space and increasing some fuel carrying capacity. Or add an auxiliary power unit (APU) to the rear half of the fuselage to generate electricity Since the F14 was designed too early, the power consumption of the high-power radar was not fully estimated, resulting in a tight power supply situation. In short, it is a huge advantage no matter how you think about it. The only problem is that although the current progress of the domestically produced turbofan 9 cannot be said to be perfect, it is at least some distance away from the Persians'' expectations... It all depends on whether the Persians can afford to wait. For us, we cant make much profit from overhauling or upgrading. The main benefit is to increase our popularity. Chang Haonan''s personal interest in the F14 is just for curiosity. After all, he has never really been exposed to any type of variable-sweep wing aircraft. However, from a practical perspective, the overall performance of this model actually does not meet the requirements of the times. The huge dead weight, low reliability and high maintenance time caused by the complex mechanical structure cannot be solved by simply changing the engine. The F4 upgrade project, which is large in volume and has low technical difficulty, is actually the main source of profit. Zhong Shihong nodded in agreement: This is true, so the main plan we are promoting here is to wait a little longer and then directly change the engine. This will increase the combat effectiveness even more, and it will also help our engine to get its name out there. If it had been left to the past, this kind of engine, which had not even been installed and tested, would not have been considered at all, even if it was just a prototype of a domestically produced model. But times have changed. The success of the Turbojet 14 and the subsequent series of results produced by the Seiko Project have made everyone more optimistic about the progress of the Turbofan 9. By the way, speaking of the Seiko Project, how has the progress been in the last two or three months? ??Although Chang Haonan is known as the general consultant of the Seiko Project, he has not been directly involved in specific projects for a while because he has been busy with Project 10 and software design and other issues recently. After all, it has only been half a year, and many projects have just started, but some specific technical results have been produced, especially in welding and casting processing. When it comes to the Seiko Project, Zhong Shihongs tone obviously became much more solemn. The main reason why he was promoted from the director of the technical department to the deputy general manager was actually this precision engineering plan. ?At this time, another person next to me took up the conversation: "Mr. Chang, I think that compared to the specific new technologies, the more important value of the Seiko Project is to provide us with a relatively open communication platform. Before, the information was too closed, and everyone sometimes didn''t know each other. Other peoples research level has led to many repetitive projects. There are other people beside me who also think so: "Yes, our factory turned a profit last month for the first time in the past five years, thanks to Mr. Chang''s new technology and the platform provided by Seiko Project." Chang Haonan turned around and saw that he I remember that this person should be a production manager from Jianning 331 Factory, and his name should be Yu Fei. The latter also immediately explained: We spent four months in the first half of the year updating the technology and conducting a process upgrade on the turboshaft 8A engine, and finally achieved a relatively satisfactory technical index. Is the turboshaft 8... used on the straight 9? ?Chang Haonan confirmed casually. Compared with the turbofan engine that has attracted much attention, the two types of aviation engines with output shaft power, turboshaft and turboprop, have received relatively little attention. However, in fact, until more than 20 years later, they are still China Airlines. The biggest shortcoming in the power field. Yes, straight 9, and civilian model H410. Yu Fei nodded: The low cycle life of several key components of the original turboshaft 8A is only about 40% of that of the prototype Ahaye 1C. Once the weather reaches high temperatures above 30C, the available power will drop off a cliff, which will not even guarantee the air quality of the helicopter. It was very difficult to take off and take off, let alone transport people and cargo, causing users to complain endlessly. " "Before, Jiangcheng and Yangcheng, several cities with relatively good economic development levels, originally wanted to purchase a batch of police helicopters. After contacting Bingcheng, they brought a prototype aircraft for a test flight. The result was that the customers were frightened. Dare to use it..." The people around him chuckled. ?But I definitely didnt mean to be sarcastic. If I have to say it, its self-deprecating. In fact, similar embarrassing situations are not isolated cases. It can even be said that almost everyone engaged in aviation in this era has encountered similar scenes. Let alone the civilian models, which have greater options for users to choose from, even the military models will be rejected. Fortunately, this time it was just a coincidence. Our improved new engine had just rolled off the assembly line and completed testing. We quickly shipped two units to replace them, and we were able to barely get the customer to accept them. General aviation is indeed a big market. If this area can be well maintained, there will definitely be great potential in the future. Chang Haonan was quite pleased to hear this story. After all, users are accustomed to this kind of thing, and it is actually difficult to change it in a short period of time. Especially in general aviation, the user scale is often not very large and they are not very cost-sensitive. So much so that in the previous life until the 2020s, there were almost no domestic models of police helicopters in major cities in China, and most of the market was occupied by companies such as AgustaWestland and Eurocopter. And now it is undoubtedly a good start. ?It''s a pity that the size of the Z-9 is really not enough, and the Z-8 model has huge fundamental problems. Unless the entire aircraft can be redesigned like the Z-8L later, it may be difficult to save it. In addition, Lanxiang Machinery Factory, which produces turboshaft 6, is considered to be first-rate weak even in the aviation power system. Even Chang Haonan almost forgot about it when he wrote the report before. In short, we can only say that there is a long road ahead. ?At this moment, the sound of high-heeled shoes tapping on the ground came from far and near. Director Chang! ?Chang Haonan turned around and found that it was a venue staff member. Director Chang, our conference is about to start. Regarding the specific agenda, Mr. Liang still has some things to confirm with you. In the background..." Looking at Chang Haonans leaving figure, Liu Yongquan once again touched his bald head out of habit: "Mr. Chang has driven our entire industry forward by himself..." (End of this chapter) Chapter 395 A new design approach for turbofan 10 Chapter 395 A new design method for turbofan 10 Half an hour later, accompanied by soft entrance music, the first China Aerospace Engine Industry Conference officially opened. Chang Haonan, who could only sit in the back row during such meetings in the past, as the most important guest and organizer of the meeting, was naturally invited to the middle position in the first row. Sitting with Liu Zhenxiang, who was also specially invited. Originally, the conference affairs department planned to arrange for him to give the first report immediately after his speech, but Chang Haonan said that the content he prepared was too long and too formal, and it was best to put it in the finale. This can also maintain the participants sense of expectation to a certain extent. He has read the reports prepared by several other people before. In terms of the current development level of China''s aviation power field, they can be considered to be of a very high level. Many of the conclusions were only achieved after the 21st century in previous lives. Although these are breakthroughs in very specific directions, so they are not a leap forward, they can definitely inspire researchers in other fields in terms of research ideas and methods. ? And if Chang Haonan had thrown out his heavy content first, then probably not many people would care about the following things - Always leave some opportunities for others. Therefore, after briefly summarizing the achievements in the aero-engine field over the past year, Chang Haonan generously gave the first official opportunity to the academician Liu Zhenxiang next to him. Although the latter is also a Taishan Beidou-level figure in the industry, the main content of his report is about the Chinese aerospace engine industry standards that are currently being formulated, especially the relevant standards in plateau environments of 3,000 meters and above. Following several reports There is not much overlap in content. "Due to China''s special geographical and terrain conditions, a considerable number of airports in key directions are built on plateaus and high plateau areas. This is a situation that almost no other country has ever faced. Therefore, a plateau condition standard that meets the requirements of our national conditions is important for It will undoubtedly be of great significance to my country''s national defense security and the flight safety of the civil aviation industry..." ?As Liu Zhenxiang''s report came to an end, Chang Haonan also lowered his head, preparing to sort out the key points he had just written down. ?But at this moment, he suddenly heard his name. At the end, I would like to express my special thanks to Comrade Chang Haonan. Chang Haonan raised his head almost subconsciously and found Liu Zhenxiang behind the podium staring at him with a smile. "If he had not submitted a key technical document to his superiors at the critical moment of high-altitude bench testing of the turbojet 14 engine, I am afraid that the entire aviation industry standard content we see today would not have appeared. From this, A series of new projects and new models will undoubtedly not exist. As soon as these words came out, the whole place was in an uproar. The extensive revision of aviation-related clauses in the national military standards has been something that has been making a lot of noise since the second half of last year. It is also closely related to the projects of almost everyone here. Naturally, no one does not know about it. However, not many people know the specific details. ?Everyone only knows that the whole thing started when the aero-engine quality acceptance standard GJB/Z64-94 was suddenly modified into a brand new GJB/Z64-97A. This is definitely something everyone expects. After all, the original set of standards copied from the Americans are completely unsuitable and lack operability. Not to mention passing the test more than two years after its release, no one can even explain how the test should be carried out. . ?Now its a new set of standards that, although not nearly as stringent, makes you want to know which screws to turn and how many times to turn them during the test, which is naturally very satisfying. ? Its just that before today, not many people knew that the core content of GJB/Z64-97A was almost completed by Chang Haonan alone. ?A few seconds later, the entire venue finally came to its senses and began to give Chang Haonan thunderous applause. Now that the situation has reached this point, the latter has no choice but to stand up, turn around and gesture slightly to the back. ?However, Liu Zhenxiang seemed to have made a bad start. ??The content of the report at this aviation industry conference is actually more or less related to Chang Haonan. ?Now that even Academician Liu expresses his gratitude, do others still have a reason to express his gratitude? So everyone has to say a sentence or a rainbow fart at the end of the report. Chang Haonan had already read all the report content, so his original plan was to sneak out to rest after Liu Zhenxiang finished speaking, and then return to the venue when it was his turn. ?As a result, all the eyes of the audience would focus on him every once in a while, and there was no chance at all. Due to the standard conversion, even if the old standard has not been implemented at all, the conversion only involves paper content is a very complicated matter, so Liu Zhenxiang distributed a lot of less important content in the form of vertical topics to some people with sufficient confidentiality levels. Project team. Although the funding is not large, it is almost a life-saving straw for many people. And many people here today have benefited from this. It is no exaggeration to say that Chang Haonan can be regarded as half of their parents. Therefore, even during lunch and breaks between meetings, waves of people came to the front to express their gratitude or admiration to Chang Haonan... ?When the meeting process finally progressed to Chang Haonan taking the stage, he even felt a little relaxed. The applause lasted longer than the previous times. ?Chang Haonan stretched out his hands and pressed down, and then the whole place fell silent again. Comrades, what I want to talk about today is more formal. Chang Haonan said as he clicked on the first page of his PPT and projected it on the screen: "Full three-dimensional design and unsteady analysis method of the third-generation high-thrust turbofan engine" ??The moment this title appeared, the entire venue fell silent. What followed was the sound of notebooks being opened almost in unison. ? We are all industry insiders, and everyone knows what the description "third-generation high-thrust turbofan engine" refers to. You must know that the successful finalization of a second-generation turbojet engine last year injected a huge amount of funds and vitality into the field of aviation power that was unimaginable in the past. Now this is obviously about moving the Turbofan 10 from the pre-research stage to a real project. ??If you can participate in it, it will be immeasurable whether it is an improvement in your ability, resume or network. So everyone immediately got into high spirits. Seeing that everyone was ready, Chang Haonan officially started his report: The previous speakers today have introduced in great detail some of the most cutting-edge research in the field of aviation engines in our country. I am very happy to see that after the successful completion of the design and production of the turbojet 14, our aviation engine research has It did not stay where it was, but was pushed further to new heights by you..." After confirming his previous work, he changed the subject and went directly to the topic: But comrades, this alone is not enough. "Everyone must have known to some extent that our two domestically produced third-generation fighter jets, the medium-sized Project 10 and the heavy-duty Project 11, are in the process of being smoothly advanced. In fact, if it were not for the recent weather, , and may even have completed its first flight. "But these two aircraft still use AL31F engines imported from Russia in terms of aviation power. Of course, judging from the current situation, the Russians will not cut off engine supply to us like the Americans. So in a short period of time, you dont have to worry about the neck being stuck. "However, those of us engaged in aviation have learned too many historical lessons. In the final analysis, it is better to have our own parents than to have our own parents. Whether it is from the perspective of saving foreign exchange for the country or from the perspective of ensuring the independent development of national defense capabilities, we need to develop A new type of aviation power sufficient for third-generation fighter aircraft is coming! "Of course, to be fair, with the technology we have now, if we want to create a turbofan with a thrust ratio of more than 8, there will be problems almost everywhere from design to manufacturing, but I think it doesn''t matter. It will be difficult to pass. All difficulties are overcome step by step, and what I want to focus on today is also the starting point for developing a new model of aeroengine, which is a new design theory! Speaking of this, Chang Haonan clicked the mouse again, and a formula familiar to everyone appeared on the screen. N-S equation. "As we all know, the N-S equation is the most universal differential equation in fluid mechanics calculations, and it is also the basic physical model for studying the internal flow mechanism of a compressor. However, it is limited by the lag in the development of related research technologies and people''s imperfect understanding of the flow mechanism. nature, corresponding to engineering requirements, this equation needs to be simplified, and a series of design methods and theories have been derived from this. "Before the aerodynamic theory of impeller machinery was formally formed, the aerodynamic design of impellers always adopted the one-dimensional flow method. However, this has little to do with the topic we are going to talk about today. Because the simplification is too serious, there is almost no engineering practice. value." The design theory we are currently using is the S1/S2 flow surface quasi-three-dimensional analysis and design theory based on two assumptions of steady state and partial consideration of viscosity effects. It transforms the three-dimensional flow solution problem of the compressor into two two-dimensional iterations. This theory simplifies the flow from the blade root to the blade tip in the compressor channel as the flow on a certain S2 flow surface, and at the same time simplifies the flow between the blades as the flow on a certain S1 flow surface, and passes through the two The mutual iteration between similar flow fields is used to obtain the entire three-dimensional flow field solution. So far, this is also the mainstream design method used in developed countries in Europe and the United States. Originally, this should be the most advanced theory we can use. ?Chang Haonan showed a smile and lightly tapped the podium in front of him: But I was lucky. A few months ago, I accidentally discovered a new method for dimensionality reduction of nonlinear partial differential equations. ??The originally solemn atmosphere suddenly became a lot more relaxed, and there was a burst of laughter below. Everyone knows that this kind of thing cannot be accomplished entirely by luck. Just because Chang Haonan is willing to be so humble, naturally no one can point it out. This new method of numerically solving partial differential equations, combined with the multi-physics simulation modeling software that I recently took the lead in developing, especially the new grid generation technology, provides us with a brand new possibility. The software interface of TORCHMultiphysics is slowly displayed on the screen. "Introducing a complete viscosity simulation calculation into the design system, the flow field structure can be analyzed and evaluated based on the calculation results, and improvement measures can be proposed in a timely manner. This method can not only more accurately ensure that the designed compressor has higher efficiency and The wider surge margin can also reduce the number of iterations in each design stage, reduce the reliance on research test components during the research process, and can even directly enter the entire compressor test. " Following the rules of several past methods, I named this theoryfull three-dimensional design and flow analysis! (End of this chapter) Chapter 396 Unify thoughts and concentrate strength Chapter 396: Unify thoughts and concentrate strength When Chang Haonan said this, he paused deliberately. Obviously, not everyone can immediately accept this concept from a theoretical level. ?But he had already thought of this. The report just made by Comrade Liu Yongquan talked about the design method of compressor bending and sweeping Ye Shan, and I happen to have a calculation example here. Chang Haonan released the next PPT, which showed a large aspect ratio blade with an extremely complex shape. You can join me and experience the design process of this ultra-high load adsorption curved swept combined leading edge edge blade. ?This name directly made many people laugh. As we all know, the longer the name, the stronger the person. ?However, at the end of the 1990s, the domestic trend had not been spoiled by Europe and the United States, and such names with a series of adjectives were not too common. ?Some keen people will find that Chang Haonan also marked several adjectives in front of the leaves in different colors, which seems to be intended to emphasize this point. Sure enough, he went on to explain: Pay attention to the several factors that need to be considered at the same time during the design process of our blade, and will have an impact on each other. "High load means that the single-stage boost ratio is high, and the efficiency of the blade itself must be sufficient; adsorption type means that a multi-slit adsorption type blade type is used to control the separation of the blade boundary layer; combined bending and sweeping means that bending and sweeping are applied at the same time. Sweep design, the blade is an asymmetrical complex shape in a three-dimensional space; the final leading edge strip means that we have also considered the adverse impact of the end wall effect on the compressor blade efficiency, and hope to reduce this as much as possible Influence." The smile just now is gone. When designing, the more restrictive factors there are, the more difficult it will obviously be. ? And this "ultra-high load adsorption type curved and swept combined leading edge edge strip blade" is obviously the type with full buff. Generally, when encountering this kind of situation, these design elements are optimized separately, and finally combined and put on the bench for actual machine testing, and the parameters are fine-tuned little by little. ??This kind of gameplay that needs to be considered at the paper design stage is definitely a gameplay that I didn''t dare to think of before. But everyones smiles did not disappear, they just moved to Chang Haonans face: Although it is a little complicated, as a calculation example, it is certainly typical enough. Then lets do it step by step, first of all, give the simplest curved Ye Shan shape... ?With the assistance of calculation examples, most researchers with engineering backgrounds finally gradually understood the new method proposed by Chang Haonan. At first it was one-dimensional, then developed to two-dimensional, and then to quasi-three-dimensional... ?Now this is called full three-dimensional, which sounds logical. But after all, everyone here is a professional. After understanding it, they can almost immediately realize that the impact of this new theory on the field of aero-engine design is definitely not as ordinary as its name. It is no exaggeration to say that if all the cakes Chang Haonan just drew can be realized, then the workload of the aircraft engine compressor design process may be reduced by an order of magnitude! Considering that most of the reductions in the process are actual machine testing, the time, money and risk reduction saved in this round can almost cross the "quantitative change" and enter the category of "qualitative change". In the past, the reason why aero-engine design was a job that required a lot of experience and a lot of practical testing was largely because the losses caused by viscous effects accounted for a large proportion of the total losses, including the amount of power added to the blades and clogging. It has a direct impact on surge margin and so on. However, the quasi-three-dimensional design method that considers the S1/S2 flow surface highly relies on statistical methods (that is, guessing first and then iterating) for the calculation of viscous effects. Even the most cutting-edge method currently developed by General Electric and Rolls-Royce The streamline curvature method still requires a huge amount of experimental data to perform numerical fitting on aspects such as expansion loss, shock wave loss, gap loss, end wall loss, lagging angle and blockage estimation, which often takes several years. Even more than ten years... Note that this is only the compressor part of the three major parts of the aircraft engine, and does not take into account the two hot-end components of the combustion chamber and turbine, as well as the coordination of the three. In general, with the current technological means, it is not unusual to spend 15-20 years designing a new engine from scratch without a core engine or old model as a basis. In fact, it took about 15 years for the Turbofan 10 on the original timeline to move from instability to maturity. If the specific situation of three-dimensional viscous flow can be given directly through numerical calculation, then even with a conservative estimate, the entire compressor design process can be completed in about 2-4 years. ?Of course, the premise of all this is that the manufacturing level is up to standard and the things on the design drawings can be produced exactly as they are. Its just that Chinas aerospace industry is full of shortcomings, and they must be strengthened from the beginning, that is, the design stage. ??The reason why the TORC Multiphysics software designed by Chang Haonan emphasized the priority of ensuring the progress of the thermal coupling module from the very beginning is to expand its business in the field of material processing, especially the thermal processing of metal materials. This happens to be an indispensable technology in the development process of high-performance aero-engine hot-end components. China''s lagging behind in the field of materials is often not due to the inability to produce the raw materials themselves, but rather to the fact that the products manufactured using the same raw materials do not meet the requirements. Compared with the compressor as a cold-end component, the research focus of hot-end components, especially turbines, is basically focused on how to withstand the highest possible temperature. Generally speaking, increasing the temperature in front of the turbine can directly increase the gas flow rate, and it will not directly affect fuel consumption. It is the simplest and crudest, but also the most intuitive and effective way to increase thrust - provided that the overall design level can meet the corresponding standards, otherwise there will be a lot of trouble alone. High turbine front temperature does not mean high performance. The typical negative teaching material in this regard is the later Japanese XF6-1. The turbine front temperature of 1600C is already on par with the fourth-generation turbofan engine, but the actual level is about the same. Its almost like a smaller version of Taiwans RD33 The lowest temperature in front of the turbine of the third-generation (fourth-generation by foreign standards) turbofan engine cannot be lower than 1200C. If you want to achieve the target set by Chang Haonan for the turbofan 10, then this number will probably be Increase to above 1400. Obviously, no material can rely on its own properties to work stably for a long time at such a high temperature, so this requires some other tricks to help. TORCHMultiphysics has the potential to solve this problem. But this is no longer the focus of today. Hence, regarding the research and development of hot-end components, Chang Haonan only briefly talked about it in the final outlook part. ? No matter how awesome he is, it is impossible for him to introduce all the key technologies related to the third-generation turbofan engine in half an afternoon. In fact, even this brand-new compressor design method only has time to throw out the concept and briefly explain it. But its enough. Looking at the eyes of the nearly two hundred people in the venue, Chang Haonan knew that his mobilization was quite successful. ?Thats right, although he has been talking about technology on the surface, he is not just talking about technology. Its more about confidence. Although the design and production of the turbojet 14 has been finalized, and the orders have been so overwhelming that the 410 factory wants to allocate part to the 460 factory in Guizhou Province to relieve the pressure, at least before today, everyone has no idea whether they can produce a turbofan immediately. 10" I have no confidence in this matter. For aviation power powers such as the United States and the Soviet Union (Russia), this kind of thing is basically not a problem. Since the previous generation model has been completed, it is basically a matter of course to continue to develop the next generation. However, in China, due to the fact that aerospace power projects have not been independently established for a long time in the past, there is often no technical inheritance relationship between various types of aeroengines, and each new model is almost started from scratch. This is also the case between turbojet 14 and turbofan 10. The former, which was deeply improved by Chang Haonan, has certainly applied many new technologies, but after all, only a very small number of people know this detail. It is normal for most people to have concerns. However, when doing projects, especially projects that require concentrated efforts, the most taboo thing is that people are not aligned and they are hesitant to look forward and backward. So today''s report by Chang Haonan is to give a clear answer - Turbofan 10 can definitely be produced! So, after finishing talking about the technical aspects, he changed the subject: "From the calculation example just now, you comrades should also be able to see that even if new design theories and design tools are applied, the research and development of the third-generation turbofan engine is still a huge task, and it is difficult to rely solely on one Two units of strength to complete. So, in this matter, I think it should be carried out through joint research and development by multiple institutions. After Chang Haonan finished speaking, a burst of whispers suddenly sounded in the venue. Although he said "I think", anyone with a discerning eye can see that it is definitely not the opinion of one or two people who can express his position so clearly on this occasion. At least it needs to be approved by the Commission of Science, Technology and Industry for National Defense, or even a higher-level license has been obtained. But the question is, how to unite? (End of this chapter) Chapter 397 I am the chief designer! (Double sprint, brothers, please give me monthly votes) Chapter 397 I, the Chief Designer! (Double sprint, brothers, please give me a monthly vote~) ?Chang Haonan did not rush to continue speaking, but gave other people on the scene some time. ?In the era of market economy, it is definitely inappropriate to rely on the past theory that only talks about feelings and dedication. At least not the most appropriate. This applies to both individuals and groups. The turbofan 10 project will undoubtedly be led by the 606 Institute and the 410 Factory. More specifically, it will be led by Chang Haonan himself. This certainly does not present any problems for the two main R&D units, but it is another matter for other factories that are mobilized to participate. ??If you rely solely on an administrative order from the Science and Technology Commission and ask people to allocate all the main personnel to help you, it will inevitably lead to a situation where the work is done but not the effort. Originally, now everyone has completed the corporate restructuring. Although they are also affiliated to the Aviation Industry Corporation, they are all responsible for their own profits and losses. You are happy to engage in "joint research and development", but others will suffer losses and explode? Just now, Chang Haonan must first come up with a new theory that is enough to establish a sect to build confidence in everyone, which is also based on the same consideration. It wasnt until about half a minute later that the noise in the audience gradually subsided, and he spoke again: "If any of you here are from the Haojing 430 factory, you should already know that the localization of Sibei MK202, which has been stalled for a long time, that is, the turbofan 9 project was restarted at the beginning of this year. What I can reveal here is that due to the development of turbofan 10 This process involves too many new technologies, and we will put some of the appropriate technologies on the turbofan 9 for verification and application. " On the one hand, this can reduce the risks of the turbofan 10 itself and speed up the project progress. On the other hand, it can also help brother units speed up research and development and improve the performance of the final product. Obviously, this is a more tactful way to answer the question that everyone is most concerned about just now, that is, what kind of cooperation method should be adopted. For state-owned enterprises, although the pursuit of profits is not their first priority, talking about benefits and interests at critical moments is by no means something that needs to be avoided. The meaning of Chang Haonan''s example of 430 Factory and Turbofan 9 is very clear - other units contribute their efforts to participate in the research and development of the Turbofan 10 project. Although we will not pay directly, the corresponding technologies obtained in the process can also be given back. to all parties involved. As a result, silence returned to the scene almost immediately. ??If I have to say something, it is that Chang Haonan can hear a neat intake of breath even on the stage. You must know that these days, there are basically no aviation development companies in China that do not lose money. The only difference is how much they lose. In the past first half of 1997, the only company that had turned a profit was the 410 Factory/606 Factory holding a turbojet 14. After all, more than 150 engines were shipped in half a year, and nearly two-thirds were sold abroad in exchange for foreign exchange. This is an unprecedented event for other peers and even for the entire Chinese aerospace engine industry. The more important point is that they prove that the aerospace industry is fully capable of existing independently from the aircraft industry. ?This is something that many people have been pursuing tirelessly for more than ten years or even decades. The obvious reason why they can do all this is because they have developed a new model that is very competitive in the international market. Aviation engines are, after all, a technology-intensive industry. If the product is not good, everything is in vain. Cooking, just practice more.jpg Now some people say that there is an opportunity to help them improve their aviation technology step by step, and the cost is just to provide some people to help with the project. There is such a good thing? ?Who doesnt have a half-finished project that has suffered a setback? ??If it can really be produced, even if it is almost impossible to export, domestic sales will still be no problem. At least the urgent wage issue can be solved. ?So, the task that originally required apportioning the number of people suddenly turned into an opportunity to compete for quotas after Chang Haonan finished those two sentences. ?Although everyone in the venue maintained a certain degree of restraint due to the constraints of respectability, it was obvious that what everyone was thinking about had changed from "whether to send people to participate" to "how many people to send to participate" and "who to send to participate." When the report reaches this point, it is time to come to an end. After all, Chang Haonan went to great lengths to bring together a small number of 200 people to hold such a conference. The original intention was actually to be a wave of participation for the official launch of the research and development of the Turbofan 10 project. It now appears that the mobilization effect has far exceeded expectations. Therefore, after a concise summary, he quickly concluded his report. The applause this time was even louder than when he took the stage. If the previous applause was more out of etiquette and respect, then the emotions contained in it now are more excitement and gratitude. Just kidding, help. After returning to his seat, Liu Zhenxiang, who was next to him, quickly came over: Xiao Chang, this conference and the theme of your report were all planned by you in advance, right? ?When Chang Haonan started talking just now, he could see a series of interlocking routines, and everything that happened later undoubtedly provided confirmation. You cant say that either. Chang Haonan shook his head: It should be planned by Director Ding and I to give everyone some confidence and officially start the research and development of turbofan 10. Hearing these words, Liang Zhuoping curled his lips. TMD, I also want to plan with Director Ding... ?After the conference, the routine eating and drinking sessions are naturally indispensable. Of course, people from almost every factory attending the meeting came to Chang Haonan to propose a toast. So that the latter quickly replaced the white wine in the cup with a colorless drink while no one was paying attention. Xiao Chang. However, just when Chang Haonan was secretly preparing to pour another glass of sparkling water, someone suddenly called his name from behind, which scared him so much that he almost threw the cup in his hand. Ahem After pretending to cough twice, Chang Haonan turned around as if nothing happened. It is Yan Zhongcheng. Mr. Yan? I didnt seem to see you before the meeting just now? Fortunately, it seems that the other party just came to chat with him: Forget it, I was stuck on the road and was delayed for a while when I came here. Yan Zhongcheng scratched his head and put the wine glass beside him. After a few more casual greetings, he quickly changed the topic and got to the point: The new design software you mentioned in your report just now seems to have a thermal coupling module? "Yes, when I organized the development of TORC Multiphysics, I specifically focused on the coupling of multi-physics fields. Currently, there are two complete related modules, namely force-thermal coupling and electromagnetic coupling. As for the more complex strong coupling, , it still needs subsequent upgrades and updates to be completed. ?Chang Haonan nodded and replied. "It''s enough. Now the overall design of the Turbojet 14 aeroderivative gas engine has been completed, but I still hope to add a cooler to the ejection device. This can greatly reduce the heat emitted from the ship''s chimney. For the future generation of infrared Imaging-guided anti-ship weapons have a strong defensive effect. Yan Zhongchengs eyes lit up after receiving a positive reply: I dont know how we can use this software? This is Chang Haonans face to this problem countless times: The public beta version will be released soon, just in the next few days. By then, all the affiliated units of the Aviation Industry Corporation will be the most advanced trial users, and I will send someone to Shengjing to guide the installation. Thats good, thats good Yan Zhongcheng showed a happy smile on his face, picked up the cup next to him, touched it lightly with Chang Haonan, and drank it all in one gulp. Lao Yan? ?At this moment, another somewhat vague voice sounded from beside the two of them. ?Two people, an old man and a young man, were walking quickly towards this side. You are indeed here with Comrade Haonan. The younger of the two was none other than Liu Yongquan, a bald engineer who had met Chang Haonan before. The older one was not impressed at all. Mr. Chang, this is Zhang Wenhe, my mentor. Liu Yongquan took advantage of a moment when no one spoke to introduce Chang Haonan. The latter suddenly realized. Chief designer of the first phase of Turbofan 10. "Comrade Haonan, after listening to your report today, I just feel that the waves behind the Yangtze River push the waves ahead..." Zhang Wenhe took the initiative to shake hands with Chang Haonan: I just talked to the leaders in the institute. If you have this intention, we hope to hire you as the chief designer after the research and development of turbofan 10 officially begins! (End of this chapter) Chapter 398 Torch Group is established! Chapter 398 Torch Group is established! Such a high-profile China Aerospace Engine Industry Conference cannot end in a hurry after only one day. There will be a day of slightly more relaxed agenda and a day for everyone to enjoy the sights. In fact, the reason why Chang Haonan designed it this way was mainly because he wanted to take advantage of this opportunity to fish. ??He also came to Hong Kong City for several meetings in his previous life, but they were all as an ordinary entourage and did not have many opportunities to appreciate the local scenery. ?However, things didnt work out as he wished, and he received a phone call on the first night of the meeting. Xiao Chang, are you convenient now? ?When he first picked up the phone, Chang Haonan couldn''t even immediately realize who was on the other side of the phone. Because generally speaking, apart from family members, the people who would call his cell phone would be those engineers who were already familiar with him, but this voice obviously didn''t match up with any of them. ?After his mind was running rapidly for about half a second, he finally found the owner of the voice from the depths of his memory. Song Jian, Director of the Science and Technology Commission. ?Of course, considering that I now carry a lot of hats from the National Science and Technology Commission, it is normal for the other party to find this mobile phone number and contact me. Director Song, I am attending the China Aviation Engine Industry Conference here in the port city. Finally, the embarrassing situation of the leader calls you but you dont know who the leader is didnt happen. In the port city? Song Jian was also stunned. These days, the frequency and efficiency of exchanges between various departments are very low. For the Science and Technology Commission system, the Science and Technology Commission may not necessarily know about earth-shattering events. Then you should be staying in a hotel, right? He obviously knows everything about the situation here, and I''m afraid he has held many meetings here. Thats right, its the accommodation directly arranged by the organization. Chang Haonan replied. ??Just kidding, there are almost all the elites in China''s aviation power industry here. If there is any accident, no one can survive, so Liang Zhuoping directly arranged an internal guest house with security. About two hundred people occupied more than half of the place. "Then tell the front desk. They should have a dedicated internal phone number. Use that phone to call me back." After finishing speaking, he hung up the phone. Obviously, this is something important. When Big Brother first appeared a few years ago, the relevant confidentiality regulations had not caught up, resulting in many leak cases. Now it is strictly prohibited to talk about secret information in mobile communication tools. So within the system, the role of mobile phones is actually not much different from that of pagers. It can only be said that it is a conference capital. After Chang Haonan inquired at the front desk, he learned that there was indeed an internal telephone room specially used for calls to the capital. Free. ??And they are all divided into small rooms, so you dont have to worry about the problem of ears on the partition walls. I dialed the number again and the person on the other end picked up the call almost as soon as the first ringtone sounded. "Hello?" Director Song, I am Chang Haonan. "Xiao Chang, I received a call from Director Wang of the Economic and Trade Commission this morning. The company you need has been approved by the higher authorities. It is affiliated to the Academy of Sciences, but it operates independently. In terms of operations, it only accepts the Economic and Trade Commission and the ZY Enterprise Working Committee. and the jurisdiction of the Ministry of Finance. ?As a senior academician, Song Jian still has the habit of getting straight to the point when he speaks. So fast? Chang Haonan was still wondering why the other party called him on the way here just now, but he never thought of this: Didnt I remember that I said before that it would be at the end of this year at the earliest? Before is before, now is now. Song Jians tone on the phone rose, and he was obviously in a good mood: "You have done such a big thing recently, how can there be no response from above? Let me tell you this, the post-production task of the flood control equipment you made was personally deployed by the Commander-in-Chief of Yangtze River Flood Control. Understood?" "Understood." Chang Haonan can certainly understand what he said. Obviously, this matter was handled as a special matter and expedited by the superiors. "You should try to come back to the capital tomorrow. There are some matters that you still need to confirm in person." Okay, Ill go back early tomorrow morning! ?Chang Haonan immediately became energetic. Its too decadent to travel around the world, bah Although it was approved so far in advance, the companys office location and specific personnel structure are definitely not ready at all. But it doesnt matter. For an enterprise, especially a state-owned enterprise, the most important thing is the organizational structure, the official seal, and the company account. ?As long as these three things are settled, it doesnt matter if you delay the rest. ? ? Anyway, the department responsible for the business is his project team. The testing of the TORC Multiphysics software will last at least half a year, and it will not enter the maintenance cycle for a while. More importantly, the leaders of both sides are the same person, and there will be no conflict with each other. After ending the call, Chang Haonan excitedly shook his fist in the air. ? In just over a year, I went from being an ordinary student to the general manager of a state-owned enterprise that I had never set foot in in my previous life - even though it can only be considered a small and micro enterprise, it would be a lie to say that I am not excited. This kind of thing requires a desensitization process. Just like when he was first reborn, even completing a small project was enough to make him happy for a long time. But as the habit became natural, now, basically only some things like the Turbofan 10 Big projects like this can bring that same sense of excitement. So he returned to the capital early the next morning after resting for a night. Since the company is nominally a subordinate unit of the Academy of Sciences, administrative operations still need to be handled by the Science and Technology Commission. ?In a conference room arranged by Song Jian, several staff members from the Economic and Trade Committee and the Enterprise Working Committee met with Chang Haonan. Generally speaking, even if the approval for the establishment of a state-owned enterprise has been passed, the subsequent registration process of enterprise and organizational relationships is quite troublesome and cannot be solved by just a few people chatting. But this time the order was issued directly from above, so the attention it received was naturally different. The two authorities simply came to work together. Simply put, the required information is collected once and then they can go back and process it slowly later. This can save Chang Haonan a lot of trouble. Such a situation is of course normal in later generations, but in the late 1990s, it was definitely unprecedented. As for the Ministry of Finance... It is not yet time for them to play a role. Comrade Chang Haonan, these are the approval procedures related to new enterprises, documents confirming the nature of the enterprise, enterprise scale and operating requirements, and..." ?Although the documents seem to be a lot and a bit confusing, overall it is not complicated. Chang Haonan, who is not even a master of business management, soon fully understood the specific work he would do after taking office. The main reason is that the scale is still small and the business location is very single, so it is easy to say anything and there is not much difficulty in management. If it is really the kind of super central enterprise with a scale of hundreds of thousands or even hundreds of thousands of people, let alone Chang Haonan who only made outstanding contributions in flood fighting and rescue operations. Even if he directly eradicates the Yangtze River floods, it is impossible for him to directly manage it. . You have to practice it step by step from bottom to top for several years. We also need to determine the companys name and logo and other cultural elements. What Director Wang means is that I fully respect Comrade Chang Haonans opinion in this regard. As long as its not a too strange name, you can go back and think about it carefully... Fortunately, Chang Haonan was prepared: No need, Ive already thought about it, the company name is Torch, and the logo is also in my computer... After communicating for a whole morning, everyone confirmed all the information related to the company. Before leaving, people from the ZY Enterprise Working Committee repeatedly warned that other issues, including money issues, were easy to deal with. However, if the company wanted to expand its business scope or staff size, it must first apply to the superior authority and pass the application. We can start doing it later, otherwise even if the Torch Group has already put its name on it, it will cause a lot of trouble. Chang Haonan doesn''t care about this. He is very confident in his management ability, so he was not planning to build the company into a super giant. What he wants is a small but sophisticated presence in the field of industrial software. In the future, he even has the idea that Torch Group will only provide the core code of basic functional modules, while the specific program writing will be done by other companies. Seeing Chang Haonan''s very solemn promise, the other party felt relieved - he had never seen such a young business leader. He always couldn''t help but pretend to be his own son''s age, and wanted to nag more about everything, for fear that this naughty man would Something went wrong. Xiao Chang. After seeing off a group of people from the two ministries, Song Jian came to Chang Haonan. After looking at him for a while, he put his hands on the latter''s shoulders: Since this is an organizational decision, it must have gone through special considerations and I think you do have the ability. I sincerely wish you success in your new position. "But you must remember that what is entrusted to you this time is not only power, but also responsibility." Sure, dont go down the wrong path. Given your ability and age, as long as you choose the right direction, you will have a bright future. Business management is different from scientific research. Sometimes, you must not rush for success. "clear." Chang Haonan said righteously. Chapter 2 Posted in the afternoon, I was too busy yesterday (End of this chapter) Chapter 399 The birth of TORCHMultiphysics Chapter 399 The Birth of TORCH Multiphysics ?Although it will take some time before the official unveiling of the Torch Company, considering that it is a matter that has been focused on above, the progress in various formalities is quite rapid. When the TORC Multiphysics software completes the final package of the public beta version in a few days, except that it does not yet have a formal office location and the organizational structure has not yet been finalized, it will be no different from a full-blown company. One of the major benefits is that Chang Haonan can directly register Torch Company as the property owner of the software, and can also include the company''s logo and contact information in the most important public test promotions. Although this is not much different from the legal perspective compared to the original plan of acting in the name of the project team and then converting it to a Torch Company after the software is officially released, it is quite different in terms of publicity. There are two versions of the public test of TORCH Multiphysics, one is the enhanced version (Proplus) authorized to some confidential units, which contains all preset models and algorithms, and the other is the professional version (Pro) that is publicly released to all applicants. There are limitations on a small number of preset databases, but there is no essential difference in basic functions. They will only affect the computing efficiency of some large models or extremely dirty models. At the beginning, these two versions were simply named the normal version and the advanced version within the project team. But Chang Haonan thought about it and felt that on the one hand, this didn''t sound good, and on the other hand, it seemed to be discriminating against some users. So I simply changed the name. There are not even medium cups, only large cups and extra large cups. In short, no matter which version, it is definitely a heavy blow to the field of numerical simulation in 1997. After all, the core function of the software, which is multi-field comprehensive simulation with strong coupling, is almost a breakthrough from 0 to 1 in this era. Although some laboratories or research institutes have developed some small related tools before, they can basically only solve certain specific problems and have no obvious help for the overall research level. Naturally, there is no way. Come to the stage of commercialization. Some software companies that have been deeply involved in the field for many years have naturally paid attention to the business opportunities in this area. However, due to the difficulty of calculation and the level of theoretical development, the current results are limited to some small toolkits relying on MATLAB or Fluent, which are functional and reliable. Neither **** is optimistic. It is conceivable that when TORCMultiphysics comes out, it will bring a shock to the engineering world. At this most critical time, the first name that appears in people''s sight is destined to be remembered for a long time. ?For example, Netflix once spun off its physical DVD business and renamed it Qwikster, but even their own people often forgot the name. Later, it only lasted for more than a month before they honestly changed it back. Therefore, using the Torch Companys logo directly instead of the name of an inconspicuous research group will undoubtedly be more conducive to subsequent market expansion and visibility. ?At present, the project teams temporary warehouse located in the Supercomputing Center of Beihang University is already filled with software packaging boxes that are about to be mailed out. Mr. Chang, as of last night, we have received a total of 744 test applications in various forms, including 42 for the upgraded version and 702 for the professional version, including 17 from foreign users. Teacher Yang, where do these 17 foreign users come from? ?The person in charge of marketing business for Torch Company is Yang Huimei, a professor of industrial trade at Beijing Hang University, who has also met Chang Haonan several times before. She is also the third official employee of Torch Company to be named on the corporate working committee. No way, in the 1990s, the management major of the marketing major had just started in China, and not many degrees had been awarded, and even after more than 20 years, no one could tell what the field was. What a professional. ? In comparison, Yang Huimei, who has rich experience in industrial trade and has participated in many foreign trade negotiations in the aviation industry, is obviously a more reliable candidate. Chang Haonan naturally cannot devote all his energy to these management matters, so only the application for the upgraded version needs to be reviewed by him personally, and the remaining professional version can basically be passed as long as the information is compliant. For a commercial software released for the market, it is neither useful nor necessary to overly limit the scope of the user group. In fact, the UI interface of the software already provides several commonly used languages ??in the world to choose from, and it will be even more useful in the future. Plan to go overseas. However, he was a little surprised that 17 overseas users could pop up without any publicity before. "Most of them are from European universities, especially those that have established cooperative relationships with us through the negotiations in the first half of the year. It should have something to do with your appeal, Mr. Chang." After Chang Haonan cast a doubtful look, Yang Huimei then explained: "Because the first one to apply was the National School of Roads and Bridges in Paris, followed by several universities in their small circle, and then expanded to Germany, Italy and Switzerland. Among the 17 users, only Agusta and Fiat "Home is a business and the rest are research institutions." As she spoke, she took out a paper document directly from her bag and handed it to Chang Haonan, obviously she had already prepared it. The latter briefly browsed through it and found that it was exactly what the other party said. If I remember correctly, during the negotiations in Haojing, there was a person in charge of technology on the EU side named Fernando Lorenzo, who should be a professor at the National Roads and Bridges School. ?Yang Huimei said from the side. Chang Haonan turned to the last page of the first application and found that there was indeed a Spanish signature. ?Of course he could not recognize the Spanish, but after such a reminder, he could still tell that the person who signed the application document was Fernando Lorenzo. This is very reasonable. After all, during the negotiation process at that time, the first person to propose in-depth cooperation with China and the first person to consider introducing technology from China was this cute little old man. ?It is normal for him to continue to pay attention to the situation in China after that. ??And this company is quite influential in the field of numerical calculation in Europe, so it will naturally attract the attention of other colleagues. Good things are all good things. Thats right. ?Chang Haonan returned the document in his hand to Yang Huimei, then turned to look at the deputy director of the project team on the other side Originally, Chang Haonan was going to invite Li Jie over directly, but considering that he was already the chairman of Shuguang Group and an academician, the possibility of becoming the head of the technical department under him was almost non-existent, so this position had to be replaced. If there is a temporary vacancy, let the two deputy directors of the project team take over temporarily. Our software currently only provides a multi-lingual version of the UI interface. Now that there are foreign users in the trial phase, the instructions and related legal documents must be translated as soon as possible. Although the software in the trial phase does not involve charging issues, it is not open source software after all. From a legal perspective, efforts to prevent piracy still need to be made. Whether you can prevent it or not is another matter. No problem, I have already deployed the work in this area. The main problem now is that there are too few people who understand the laws in Europe, so the progress in this area will be slower. The deputy director nodded and replied. It doesnt matter, the reputation of the first batch of customers is very important, it doesnt matter even if it is shipped abroad a little later. In this kind of matter, Chang Haonan adheres to the principle of preferring to do more than to overdo it. "yes!" (End of this chapter) Chapter 400 Help in times of need Chapter 400: Giving timely help The first users to receive the trial version of the software are undoubtedly Beijing Hang University and the Institute of Computing Technology of the Chinese Academy of Sciences. ?Of course, due to the company''s formalized process and legal perfection, an authorization document still needs to be sent out through the postal service. After all, the postmark is an important basis for judging the period (time limit) and delivery behavior in civil activities, especially in the process of making a contract. This matter is particularly important in this era before electronic contract signing. ??It was just that it was delivered within the same city, and the priority was high, so both parties received the paper authorization license on the second day after the trial version was released. ?In fact, they dont even need an installation programTORCHMultiphysics software itself was born in the computer room of Beijing Airlines and the Institute of Computing Technology. ??Its just that the effectiveness of this authorization document means that researchers in these two institutions can use the new software in publicly published results or in the process of completing projects. Subsequently, a little later, several central enterprises and universities headquartered in the Science and Technology Commission system, including the Aviation Industry Corporation and the Aerospace Corporation, also received the same permission. According to the plan set by Chang Haonan, users of the upgraded version will receive the installation CD of the software about two to three weeks before users of the professional version. This is mainly because the former are basically confidential units within the system. In case of legal provisions or If there are any flaws in the software design, the impact caused by them being discovered first is relatively controllable. As a price, the projects in the hands of these units are basically hard work with long cycles and large investment, so generally speaking, complete usage feedback cannot be obtained in a short period of time. But everything is always special. ?At almost the same time that relevant units began to receive the TORCHMultiphysics software installation package in batches, Bingcheng University of Technology. Professor Li Zhihongs research team has been troubled by the project in their hands for a long time. Since 1992, they have been collaborating with colleagues from several other universities to conduct research on high-precision spiral bevel gear processing. This is a very common part in high-end aerospace, equipment manufacturing and other fields. For example, the turbofan 10 engine and heavy-duty die forging press that Chang Haonan is concentrating on preparing to tackle, both require a large number of high-precision spiral bevel gears. ??Due to the complex spatial shape and structure, its processing is quite difficult. For a long time, it can only be completed by CNC gear grinding machines imported from Gleason in the United States and Klingenberg in Germany. However, the functions of imported gear grinding machines are limited, and many products are restricted from being used in manufacturing. If problems are encountered during production, the data must be transmitted to the machine tool manufacturer, and foreign technicians will adjust the parameters. . It is equivalent to a manufacturer here in China spending a huge sum of 15 to 20 million to buy a machine, but only working as an operator for a foreign supplier. Not only can it not produce the most in-demand parts, but it does not even have access to knowledge in related fields. . Its just plain bullying! Hence, it is imperative to obtain your own digital precision machining capabilities. In the first half of this year, this research, which was originally aimed solely at high-precision spiral bevel gears, was included in the Seiko Project and expanded into a broader "new principle and new method of digital precision machining of high-performance complex curved surfaces." After obtaining new resources and funding, Professor Li Zhihong finally began to change the last step of the traditional three-step process of "gear milling-heat treatment-grinding" to gear grinding, and trial-produced a gear that met the requirements in a laboratory environment. Finished products, but they have never been able to be transferred to industrial production. The most difficult part of this process is that the gear grinding process must be coordinated with the heat treatment process to correct the deformation error generated during the latter process. However, the grinding process itself will generate a large amount of grinding heat, affecting the correction accuracy and subsequent stress release. process. Relevant foreign manufacturers have been deeply involved in this field for decades or even hundreds of years, and each has a set of fairly accurate grinding processing models. Even so, for different specific products, a large number of experiments are still required to determine the processing parameters. Domestic research has only started less than 20 years ago, so you can imagine how difficult it is to catch up in a short period of time. Wang Jie. ??Li Zhihong took off his glasses, rubbed the top of his head that was already losing some hair, and called over a student next to him who was immersed in drawing. Send this new process requirement to the processing factory. Wang Jie on the other side of the room put down the pencil and compass in his hand, walked over and took a thick stack of documents from the professor''s hand, opened it and took a look at it. Have you adjusted the empirical parameters in the grinding force calculation formula again? Even Wang Jie, who has just joined the research team for about a year, is already familiar with it. ?Li Zhihong didn''t say anything, just nodded. "well" ??Wang Jie sighed inaudibly while putting the documents in his hand into his schoolbag. Engineering technology research and development projects is indeed very high-end. It often costs tens or millions of R&D funds. What we usually come into contact with are highly classified national weapons, which are very difficult to achieve. ?But on the other hand, most of the work they usually do can be summed up as parameter adjustment, trial production, sample analysis, parameter readjustment, and trial production again... Even if it were an ordinary high school student, there would be no problem. ?After passing through the initial fresh stage, although Wang Jie will still handle his work diligently, he will inevitably have doubts about his own value. They have also tried to use numerical calculations to theoretically calculate the heat treatment and grinding processes to repeat the number of iterations. However, since the temperature, stress conditions and calculation boundaries of the workpiece are constantly changing during the entire processing process, In the end, the results they calculated were completely irrelevant to the actual situation. ?This is certainly not unexpected ??If the results could be obtained so easily by calculation, then several top companies in the industry must have used it long ago, instead of continuing to rely on the empirical formulas passed down by their ancestors. But it is really difficult for late-developing countries, especially China, which is not yet a high-level economic country. Dont be discouraged. In fact, our progress in the past six months is already very fast, whether compared to the past or compared to our foreign counterparts. ?Li Zhihong put on his glasses again and taught his students. Teacher, I know this, I just think this is not the same as the scientific research I expected... Alas... we are engaged in mechanical manufacturing... Just halfway through speaking, the door of the office room was pushed open. The one who rushed in was the senior brother and junior boss of the research team, Zheng Shudong. Teacher Li, the school computing center said that they received a brand new numerical simulation software today, which may be able to solve our problem. As soon as he finished speaking, Li Zhihong and Wang Jie stared directly at him. Especially the latter. I just complained about the gap between reality and ideals, and now I have an opportunity to realize my ideals. Tell me in detail? ?As a mentor, Li Zhihong is much more stable after all, but his eyes also reveal excitement. A few days ago, Beijing Hangzhou University and the Institute of Computing Technology of the Academy of Sciences jointly launched a software development project, mainly to solve the strong nonlinear problem in the multi-field coincidence simulation process. ??The other two people in the room looked at each other. Obviously, for them this is just like giving them a pillow when they are drowsy. Lets go and have a look. ?The three of them left the laboratory quickly. Professor Li Zhihong even forgot to fasten the cap of his pen. When they arrived at the computer room, several acquaintances were already there. Lao Li, when this software was delivered to me today, the first thing I thought of was you. Come and take a look at this, the instruction manual and promotional brochure sent by Torch Company. ?Li Zhihong squeezed through the crowd and got in front of the computer. TORCHMultiphysicsthe name is quite straightforward. ??He pushed up his glasses. Although his tone was calm, his eyes were firmly fixed on the lines of text on the screen. ??The previous large paragraph is really basic for professional researchers, but Li Zhihong was a little embarrassed to turn directly to the part that interested him most. Teacher, you can directly select the chapter here. ??Wang Jies stupid speech quickly helped his mentor find the right path. Why are you so anxious? Others may still want to see it... ??Although Li Zhihong said this, he followed his instructions very honestly and clicked directly into the "Force and Heat Coupling" section. The temperature field is a collection of the distribution of grinding temperature in the spatial domain and time domain caused by various heat sources He quickly became fully involved. About twenty minutes later, the master and apprentice looked at each other several times. Is this a bit close to the scientific research you expected? The first person to speak was naturally Li Zhihong. He adjusted his glasses and asked Wang Jie. Close, too close. The latter kept nodding. The director of the supercomputing center next to him finally spoke after seeing this: Actually, I originally wanted to ask the development director of this software, who is also the director of Beijing Airlines Supercomputing Center, to give a special lecture, but after calling me, the other person said that he was not in school recently, so it was not possible. It doesnt matter. ?Li Zhihong shook his head: The application of this software is not difficult, even for people who are not computer majors. As for the specific effects...of course, we still need to test it to know. After speaking, he looked at the other party with questioning eyes. The director obviously understood what he meant: No problem, in the next few months this year, our research teams supercomputing time allocation will be doubled! The next chapter has been reviewed, please wait. (End of this chapter) Chapter 401 Final preparations before first flight Chapter 401 Final preparations before the first flight ?At this time, Chang Haonan was really not with Beijing Airlines. Since Sichuan Province itself is not an area seriously affected by floods, Factory 132 is located in a relatively advantageous location and is not prone to water accumulation. In addition, the superior unit sent a truckload of soil-swelling water bags at the most critical moment. Due to the superposition of these factors, the entire factory area was far less affected by this wave of nationwide floods than previously expected. ?Prototype 01 of Project 10 was not even moved to a high place. After calculation, it was slightly supported in the assembly workshop to a certain height, thus completely avoiding the threat of waterlogging. Therefore, about half a month after the rain subsided, Rongfei was able to completely eliminate the negative impact of the flooding and began preparing for the test flight as planned. Chang Haonan, as a person who played an extremely important role in the early ground testing process, naturally received an invitation to participate in the first flight ceremony. Even though I had been prepared for this, when I actually received the call, the feeling was completely different. ??If the Chinese Air Force can be simply and roughly divided into two eras, before the introduction of the Su-27 and after the introduction of the Su-27, then China''s aviation industry can also be divided into two eras in the same way, and the watershed is the No. 10 Project! As a third-generation fighter, its excellent performance is secondary. The greater significance is that it is the first model in China to independently complete the entire process from pre-research, project establishment to finalization and service under the new national military standard system. . Even if some parts of this aircraft need to be imported from abroad, it will not affect its status in the history of the development of China''s aviation industry. Prior to this, although there were also independent models such as JJ-1, Chujiao-6 and Shuibo-5 that broke away from the technical route of imitating Soviet aircraft, their technical level was either really low, or they failed to enter mass production due to various reasons. In short All have various regrets. The J-10 is the first time that China has opened up the complete aviation industry chain from beginning to end. Dont think that the overall design of the aircraft is a simple matter. ?Those who have done engineering design will know that even watching others complete a project is completely different from doing it yourself. Only after completing this leap from 0 to 1 can we have the capital to think so. You must know that even more than 20 years later, there will be only a few countries that can "save" an aircraft using imported parts and components. It is difficult for those who dont know how to do it, but it is not difficult for those who know how to do it. It''s a bit like writing a paper. When I read papers posted by others, I always feel like "What kind of **** can be published in nature?" But when I actually write it myself, I find that what I write is not even as good as rubbish. Project No. 10 is the first first-author paper completed by China in the field of aviation industry. And this paper was directly selected into the top journal. Therefore, the first flight of the J-10 cannot be missed. When Chang Haonan arrived in Chengdu by plane, it was three days before the first flight. After all, he can be regarded as an insider involved in Project No. 10, and the treatment he receives is naturally completely different. In the final analysis, other guests who are just here to observe, no matter how high their status, can only be regarded as "outsiders" to the No. 10 project. Arriving to Chengdu too far in advance, or being too involved in their daily work will appear Rather intrusive. But Chang Haonan will not. Not only did he not, even after he arrived at Factory 132, he was personally brought into the assembly workshop by deputy chief designer Yang Wei. Mr. Song, Mr. Xue. Unexpectedly, Chang Haonan saw Song Wencong and Xue Chishou in front of the No. 01 prototype that was undergoing the final round of testing. At this stage, as the chief engineer and chief engineer, what they can do is actually relatively limited. The main reason why I stay here is for psychological comfort. In the current timeline, due to the addition of Chang Haonan, the No. 01 prototype did not suffer the two heavy losses during the ground test. Coupled with the optimization of the manufacturing process and production management level, there was no reason for the failure in the previous life. The first flight was delayed due to the discovery of three oil leaks. Xiao Chang, come here and take a look at this plane. After a brief greeting, Xue Chishou directly pulled Chang Haonan aside. ??The afterglow of the setting sun filtered through the glass of the factory building and enveloped the fuselage of the No. 01 prototype, giving it a golden luster, as if it was bathed in holy light. ?This is of course not the first time Chang Haonan has seen the J-10. ?Compared with the first flight state of the previous life, the hardware of the aircraft in front of me has not changed much. The main differences are basically concentrated in the invisible software part. Especially the flight control program, after integrating the surge prediction and active control system designed by Chang Haonan, it can be said to be completely transformed. Although this will not directly increase the performance boundary of the aircraft, on the one hand it will be beneficial to flight safety, especially during test flights. On the other hand, it will also allow pilots to more confidently try to squeeze out the potential of this aircraft. In the past, in order to reduce risks, we could only exert 80% of our strength, but now we can exert 90% or even 95% of our strength. The actual combat level will naturally be significantly improved. ?Chang Haonan and Yang Wei walked slowly around the plane together. ??This plane really cannot be seen enough. However, halfway through the second lap, he suddenly frowned slightly. Because when he habitually looked under the wing, Chang Haonan remembered something that later made the Air Force resentful for a long time. Mr. Yang, I think the pylon interface on the innermost wing of our aircraft seems to be different from the two outside ones? He turned around and asked Yang Wei behind him. In fact, as a reborn person, he certainly knows that the answer is yes. The J-10''s inner wing pylons are basically designed to carry auxiliary fuel tanks and do not have a high-capacity data signal interface. As a result, the two most advantaged pylons cannot carry guided weapons. Even in situations where auxiliary fuel tanks are not required, only the simplest uncontrolled bombs or rockets can be used. On the one hand, this can save some costs, but it is mainly to leave more space inside the wing for the fuel tank. Almost all models equipped by the Chinese Air Force in the past were like this. There is no way. Before the Su-27, the Soviet aircraft that China came into contact with were all models equipped with frontline aviation, with single functions and relatively short range. ?In the Soviet army''s combat settings, they only need to take off and land from frontline airports to ensure that air superiority is not completely lost. The Army will take care of the rest. However, when these short-legged MiGs arrived in China, which has the same vast territory, they had to assume the responsibilities that originally belonged to the homeland defense air force. Therefore, fuel anxiety was generally very serious. From the J-5 to the J-7, China was constantly improving these models. The changing theme is "Let me see where else I can put a gas tank in." When it came time to design the J-8 and J-10, although the basic range was no longer so pitiful, design habits could be changed at any time. Therefore, these two models still retained a pair of missiles without dedicated data interfaces. shelf. ?After hearing Chang Haonans concerns, Yang Weis answer was almost the same as the formers expectation: Four pylons, two in the middle and two close to each other, are all enough...can the Air Force have so many missiles to hang on? It should be more important to ensure the basic range It can only be said that people cannot recognize things beyond objective reality after all. In the late 1990s, this is really not a problem, because at this time, the mission of the Chinese Air Force is still to simply defend air supremacy and not completely lose it, and to be honest, there are not that many missiles in the arsenal for you to hang, and each aircraft Keeping 4 hangers is enough. ?Its just that no one could have imagined that in just a dozen years, China would have a new type of air force capable of both offense and defense. At that time, the problem of insufficient racks began to cause problems. Four pylons are barely enough for air combat, but if you want to also perform ground attack, there will not be enough allocation anyway, so combat units have to come up with all kinds of weird asymmetrical mounts. ?Although it is not impossible to use, the combat efficiency will be reduced a lot. Faced with this explanation, Chang Haonan couldn''t possibly say that the Air Force will have a lot of demand for ground strikes in ten years. This rack design will be criticized by the troops, so they have to use some slightly more tactful methods: "This is indeed the case for us at the moment, but hasn''t it been decided before that the personal model will switch to a DSI air intake later on. The current version with an adjustable air intake can adapt to a wider range of speed changes, so Will take it for export. "If you think about the countries that will buy our Chinese fighter jets, none of them need a particularly large range. On the contrary, they all hope that the air force can only equip one type of aircraft that can cover all missions. Then at least it must be able to carry two, two, and nearly four aircraft at the same time. With the need for one air-to-air bomb and two ground-attack weapons, this design may not be conducive to competing with peers..." ??Yang Wei was originally an unparalleled genius. I never thought that he was simply blinded by the current situation. Now I was reminded by Chang Haonan. Suddenly I felt that the world was vast. (End of this chapter) Chapter 402 Test pilots "talisman" Chapter 402: The Test Pilots Amulet In fact, this is the first time that Chang Haonan has truly participated in the preparations for the first flight of a new aircraft. Compared with the J-8C, which has been greatly modified based on the old model, and the J-H-7 or H-6 AIT, which have simply undergone limited equipment upgrades, the aerodynamic design, flight control design and various flight-related cores of the J-10 Parts are almost all new. ?Although some technologies related to electronic equipment and production processes have been verified on the J-8C, overall, the proportion of new technologies applied in prototype No. 1001 at this time still exceeds 40%. Under normal circumstances, this is a number that is enough to stop the heart and lungs. Not to mention the parties involved such as Xue Chishou or Song Wencong, even if Chang Haonan lives again, he knows very well that the J-10 with a figure of up to 60% in his previous life can still successfully complete its first flight. At this critical moment, some nervousness will still arise. There is no other way, rationality is rationality, and emotion is emotion. ?The stability control system designed by Chang Haonan can only avoid engine failure due to intake distortion, but accidents are not foreseeable by humans at all. ?This actually raises another question, that is, as he affects more and more of the timeline of this life, there will be more and more things that are difficult to predict like when he was just reborn. ?Furthermore, the recent floods that broke out early in 1997 also seem to mean that the two timelines themselves have some slight differences in some random factors. If the multi-game randomness is a game setting, it will naturally improve the playability to a great extent. However, in reality, it is not easy to get a chance to cheat in a multi-game life. As a result, many things are different from the previous life. Same, but not as interesting. That evening. After completing the power-on inspection of the aircraft as usual, the comrades in charge of each system of the No. 10 Project and the relevant personnel of the China Flight Test Institute who were about to participate in the test flight gathered together to hold a pre-flight preparation meeting. General preflight preparation meetings are held literally before takeoff, but the situation of the first flight is different after all. Sufficient time must be left for the pilot, so it has to be carried out in advance. Chang Haonan attended as "one of the important designers of the flight control system". Comrades, let me first clarify to you the entire process of the test flight tomorrow morning. Xin Xiaowen, chief flight test engineer of Project 10, tapped the table with a pen and began to speak first. As a brand new key model, the J-10s original first flight was relatively conservative, with the J-10 simply taking off, flying around the field for two weeks, and then landing. There''s no need to even retract the landing gear. The largest movement range is a steep turn. But even these seemingly simple and ordinary subjects are still full of uncertainties for an aircraft that has never flown into the sky before. Prior to this, aircraft No. 1001 had conducted several high-speed ground taxiing tests. Chief test pilot Lei Qiang even completed a brief lift-off lasting a few seconds during the wheel-raising test, proving that the aircraft was not advanced in basic design. There is no problem. In other words, it is definitely possible to take off. But the problem is that neither the iron bird platform (a comprehensive test bench for the flight control hydraulic system, equivalent to a simulator) nor the ground taxiing can simulate the true response characteristics of an aircraft. Flying an airplane is somewhat similar to driving a car in some ways. ?For example, there is an "operating feel" that is difficult to quantify, mysterious and mysterious but does exist. ?Each model of aircraft has its own distinctive personality and characteristics. ?Taking the simplest take-off as an example, after reaching the take-off speed, the pilot pulls the stick, how long does it take for the aircraft to feel its head rising? How much force and speed do you pull and what will happen to your head speed? At what angle will the plane stop when it raises its head? How responsive is the engine after pushing the throttle lever? At what rate should the throttle be controlled to achieve a balance between maintaining stable operation of the engine and flexibly adjusting the power level of the aircraft... ?These are things that can only be felt one by one when a real plane flies into the sky. These simple subjects set up in the first flight are largely to test this feel and pave the way for more complex test flights in the future. One of the major features of Project 10 compared to all previous aircraft projects in China is that the test flight team participated in almost the entire design process of the aircraft. Therefore, Lei Qiang, the chief test pilot, is relatively clear about what Xin Xiaowen said. ??Despite this, he still kept his head down and took notes meticulously. Being serious, meticulous and meticulous can ensure nothing goes wrong. The J-10 uses the dual logic of force feedback and displacement stroke in the flight control design. This is a first in the world, and there is no mature experience for reference. After Xin Xiaowens speech, Yang Wei, who is mainly responsible for flight control design, emphasized: Although all test pilots have adapted to the iron bird platform for two years in advance, this dual logic has not yet been implemented on the ground. To restore it, when controlling the joystick, you must pay attention to the strength of the hand and the stroke of the joystick at the same time. The two will work together to affect the response of the aircraft to the operation. We need the test pilots to feel the current situation during the first flight. Whether the weight of the impact of the two on flight control is appropriate, and the specific flight control quality. ?Lei Qiang wrote down what Yang Wei said with a red pen, then raised his head: I understand, I will pay more attention to this aspect tomorrow. At this time, Chang Haonan, who had been silent just now, also added: If I have to describe it, the feel should be similar to borrowing some F16 operating logic based on the Su-27. Although it was six or seven years ago that this control logic was adopted, he had a detailed understanding of it when he and Yang Wei incorporated the active stability control system into the comprehensive flight control program. At that time, the first That''s how it feels. ?Of course, there is another level of reason for adopting this statement - ?Lei Qiang may be the only pilot in the world in this era who has flown both the F16 and Su-27, two typical fly-by-wire fighter jets. So when he heard what Chang Haonan said, he nodded lightly and understood almost immediately. F16 adopts a quite radical side-lever position afterburner feedback control logic in the cockpit design, which can theoretically greatly improve the pilot''s convenience in controlling the aircraft. ??However, the actual feedback situation is not like this. The force feedback control method is too anti-human and almost completely offsets the control advantage brought by the side stick design. Although the flight performance of the F16 itself is quite superior, the "user experience" it brings to pilots is very average. The flight quality under most envelopes is in the second and third categories, with only an extremely narrow first category area. Somewhat similar to an F1 racing car, it has high performance but is difficult to drive. It is a proper equipment for experts. This also results in the F16''s proportion of two-seat models being far greater than that of almost any other aircraft. The J-10 has learned this lesson in its control logic and chose to combine force feedback and displacement stroke feedback. In fact, all subsequent third-and-a-half-generation and fourth-generation fighter jets have adopted similar strategies. This may be the first time that the Chinese aviation industry, which was still very weak at the time, has led the trend in some aspects. ?However, as "the first airplane to try something new", naturally there is no previous experience for reference. ??Lei Qiang can only go up and explore by himself. The joystick put a lot of pressure on the test pilots. After all, this is the first aircraft in the world to use this kind of control logic. ?Perhaps feeling that the atmosphere at the meeting was a bit heavy, Yang Wei suddenly changed the topic and adopted a more relaxed tone: "But there is also good news. Thanks to our latest version of the flight control update, the operation of the throttle lever has become much simpler than in the past. Although the engine is not produced by us after all, we cannot achieve full digital control with complete functions, but Under some extreme working conditions, the flight control system can automatically control the operating status of the engine to avoid exceeding safety limits. " After finishing speaking, he turned his eyes to Chang Haonan next to him, indicating that the latter could introduce it in detail. Although it has played an important role in the ground testing process, as a function that was only recently added to the J-10 flight control, quite a few people still lack a comprehensive understanding of it. For ordinary users, there is no need to insist on knowing the reason, but since it is a test flight, there is no harm in knowing more. Furthermore, it can also improve the test pilot''s confidence in the aircraft. Thats right, this system uses a specialized algorithm that can detect some surge precursors that were difficult to detect in the past. After detecting abnormalities, it can automatically handle them and inform the pilots in the cockpit of potential risks..." Chang Haonan introduced the basic principles, working logic and applicable situations of the active stability control system in about half an hour in the shortest possible language: This system can help pilots avoid worrying about engine stability, allow more extensive adjustments to the throttle lever, and will automatically select the most efficient method under safety conditions... The pilot just pushes the throttle, and the flight control does the rest! Chang Haonan borrowed an advertising slogan that did not exist in this era and said it in a slightly joking tone. The atmosphere in the venue finally became more lively. Actually, his set of things is a bit like the airplane version of quattro. Comrades from the Flight Test Institute listened especially carefully when Chang Haonan introduced it. ?Especially when he said that he could predict potential risks in advance and automatically reduce the speed to avoid them, many people had complicated expressions on their faces. As the test flight unit that bears the greatest risk, countless of their predecessors have died due to surge, the biggest enemy of flight safety. If such a set of things had been available before, many accidents would have been avoided. Comrade Chang Haonan, this is an amulet for our test pilot... (End of this chapter) Chapter 403 J-10, take off! (Ask for a monthly ticket) Chapter 403 J-10, take off! (Please ask for a monthly ticket~) Two days later, it was early morning on the day of the first flight. The stands set up next to the runway of the test flight station were crowded with people. From the top leaders to the technical representatives sent by the Air Force, everyone was eagerly looking forward to the first flight of China''s first independently designed and manufactured third-generation aircraft. About an hour ago, when it was just dawn, a thin morning fog appeared over the airport, which made everyone worried about whether the first flight could proceed smoothly. However, as the sun rose, the fog was quickly dispersed. The weather finally returned to the fine state mentioned in the forecast. In the final assembly workshop, due to the experience of previous ground tests, the cooperation between the staff of Factory 132 and the flight test station was already familiar, and the front wheel of the aircraft was quickly fixed on the clamp of the special tractor. ?Song Wenchong and Xue Chishou both wore suits for the first time. The two of them, who were usually unprepossessing and unkempt due to frequent visits to the factory, really looked somewhat dignified once they dressed up. ?An engineer trotted over from not far away: "Report, the inspection work before the first flight of the No. 1001 prototype of Project 10 has been completed!" After speaking, he handed over a document he was holding. Chief flight test engineer Xin Xiaowen, chief designer Song Wencong, chief engineer Xue Chishou and aircraft assembly director Xu De signed their names in turn. Looking at the plane that was ready in front of him, Xue Chishou only said two words with mixed emotions: "Set off!" With his order, the aircraft tractor made a low roar, and then towed the 11-ton aircraft and started lightly - Since the flight was not expected to last too long, in order to reduce the take-off weight, only a relatively small amount of fuel was added. Even after the pilot sits on it, the actual thrust-to-weight ratio of this aircraft will exceed 1.1. Song Wencong stared at this fighter plane that he had devoted all his efforts to for the past fifteen years, and the corners of his eyes turned slightly red. In fact, since he became the chief designer of Project 10, he has spent much more time with this aircraft than with his family. Therefore, it is no exaggeration to say that the J-10 is like a biological child to him. The same goes for everyone involved in design and manufacturing. Too many people have left all their youth, blood and even lives to Project No. 10. Lets go, lets go there too, dont keep the people at the scene waiting too long. Similar to the first time prototype No. 1001 left the assembly shop for the engine start test, no one got on the bus that had been prepared next to it, but divided into two groups and followed them along the taxiway. Xue Chishou''s 28-inch tire was punctured, so he couldn''t ride at the front like last time. He had to stand on the pedal next to the front of the aircraft tractor to clear the way for the aircraft. ?However, these regrets were quickly dispelled after arriving at the test flight site ?Nearly everyone on the viewing platform stood up in unison the moment they saw the plane appear at the end of the runway. This is their recognition and respect for this aircraft and the developers of Project 10. ?Chief test pilot Lei Qiang has already been waiting here. The night before, he, who had always been in good mental condition, suffered from insomnia for the first time. ??For the test flight mission of Project 10, it would be absolutely false to say that I am not nervous at all. ?In a routine physical examination before the flight just now, his heartbeat, which is usually in his early 60s, directly measured the highest number of 125. ??However, this nervousness is not due to concerns about his own safety, but about the aircraft. As a member of the flight test team who has been involved in the aircraft design, development and manufacturing process since 1993, Lei Qiangs feelings for the J-10 are no less than those of Song Wenchong and others. Without saying a word, he gave a long military salute to Song Wenchong, Chang Haonan and other people following the J-10, and then turned around to board the plane. Chang Haonan listened to Lei Qiangs briefing before his rebirth, so he remembered very clearly that in the original timeline, Lei Qiang had made a somewhat undisciplined statement before the first flight As long as the plane doesnt break up in the air, even if it crashes, I guarantee it will crash on the runway! But this time, Chang Haonan, who was fully involved in the preparations for the test flight, had never heard of it. This somewhat made him feel a little relieved ?Prototype No. 1001 in the previous life did have a lot of ups and downs before its first flight. Not only was it seriously injured twice by engine accidents, it also had many minor problems during the taxiing test, which delayed the test flight date for almost half a year. Now, his research results have helped the aircraft smoothly reach its first flight. The confidence of the test flight team has obviously been greatly enhanced by this. On the other side, Lei Qiang, who sat in the cockpit of the aircraft, took two deep breaths and began to check the aircraft''s movements and switches one by one according to the process. After focusing on flying, his heart gradually relaxed along with the movements of his hands. This is the quality of a top test pilot. Its not that they wont be nervous. But they can overcome the tension. The ground inspection process is completed and the engine is ready to be started. Lei Qiangs completely calm voice came over the radio. Received, ready to start the engine. Xin Xiaowen replied. With a short and slight vibration, the characteristic roar of a jet engine sounded. ?This noise that usually sounds high-pitched sounds like celestial music to the ears of everyone present. ?The engine started successfully. Soon, the auxiliary vehicles around the aircraft were gradually removed, and the first flight officially began. In the cockpit, Lei Qiang pushed the throttle with his left hand while keeping his eyes fixed on the tachometer. ? He ??pushed harder and harder than usual, like a rookie sitting in the cockpit of a fighter jet for the first time. In the past, old aircraft, including some early third-generation aircraft, the engine speed changes completely followed the action of the throttle valve. If its on a car, this might be called driving fun, but its definitely not for an airplane. Flying an airplane only requires safety, not fun. Changing the throttle position too aggressively or frequently may cause engine failure, so this requires the pilot to pay attention to the working condition of the engine at all times even in the most intense air battles, which is obviously a huge additional burden. ??But on this aircraft, the rotation speed of the tachometer pointer only became a lot faster, but it did not appear unstable at all due to the jerky movement. Obviously, the engine stability control system in the flight control program is working. Its so perfect ?Lei Qiang thought in his heart. ?The rotation speed increases faster, which faithfully reflects the pilot''s sudden push of the stick, that is, the operation intention of violent acceleration. The uniform acceleration is to help the pilot ensure the stable working condition of the aircraft. For a veteran test pilot like him who has flown tens of thousands of hours and more than 20 models of aircraft, this function may not be too important. But for the majority of ordinary pilots, it is simply a leap from manual transmission to automatic transmission. ??And this automatic transmission is also an AT transmission with smooth shifting logic and extremely perfect adjustment. When the engine speed increased to 30%, he released the brake handle. The plane began to accelerate lightly on the taxiway and soon reached the scheduled take-off position. Out of the corner of his eye, Lei Qiang noticed through the rearview mirror in the cockpit that there were many people wiping tears at the end of the runway and on the management platform. On another runway not far away, a Trainer 8 seconded from a brother unit was also accelerating. Sitting there were the chief flight companion test pilot Li Yong and a photographer. Rongfei Flight Test Station originally arranged only one JJ-5 for companion flight, but at Chang Haonan''s insistence, it was changed to a model with better cockpit conditions and visual field conditions. Chang Haonan, who has flown as a companion before, knows that with the cockpit view of the J-5 being worse than that of the J-7, it is almost impossible to take any good photos. On the one hand, after the first flight, these photos are still needed to confirm some situations. On the other hand, there is Chang Haonans selfishness The business of military propaganda must be grasped in advance... ?Lei Qiang pushed the throttle valve again, gradually increasing the engine speed to the maximum. Prototype No. 1001 only used about 300 meters of the runway to reach ground speed, even faster than the trainer aircraft following it. ?Lei Qiang gently brought the lever backward with his right hand, and the canards immediately rotated lightly, faithfully feeding back the head-up torque to the aircraft. ? Just this one action fully demonstrated the agility of the aerodynamic design of the J-10. Because almost at the same time he pulled the lever, there was a feeling of overweight, and prototype No. 1001 officially made its first flight! Theres still more in the afternoon, so Ill kneel down and ask for a monthly ticket~ (End of this chapter) Chapter 404 First flight, success! (Additional updates, please continue asking for monthly votes) Chapter 404 First flight, success! (Additional updates, please continue asking for monthly votes) On the other side, after Lei Qiang piloted the aircraft into the taxiing stage, the engineering and technical personnel not directly involved in flight command, including Chang Haonan, were transferred to the management desk. ??When No. 1001 lifted its wheels in the first half of the runway, everyone at the scene even burst into confusion. After all, under normal circumstances, in order to ensure nothing goes wrong, an aircraft carrying out its first flight will choose to taxi on the runway for a while, increase the speed to a safer level, and then choose to take off. Moreover, the more common models of the Chinese Air Force, the J-7, Qiang-5, and J-8, are all players with very high take-off speeds. Therefore, many people who have not paid special attention to the field of aviation technology will subconsciously think that they are hundreds of times larger. A sliding distance of one thousand meters is normal. Comparatively, it is indeed too early for the J-10 to lift its wheels less than 400 meters away. The plane hadnt even reached the front of the viewing platform. In fact, Lei Qiang, who was piloting the plane, initially wanted to press the nose of the plane and pull the plane up as close to the center of the runway as possible. One is to leave some redundancy, and the other is that the visual effect will be more shocking. However, the design of the canard and enlarged delta wing layout is indeed too good in terms of lift (the canard aircraft relies on lifting the front wing to obtain torque when raising its head, while the conventional layout relies on pressing the tail downward, which will lose a certain amount of total lift). In addition, in order to test the working condition of the engine control system, he deliberately pushed the rod harder, causing the aircraft to accelerate much faster than expected. In short, when the plane slid to a position just over 300 meters away, the tendency to lift off the ground was already very obvious. Pressing it down forcibly might cause certain risks, so Lei Qiang simply pulled the lever and demonstrated the excellent takeoff and landing of Project 10. ability. Unlike second-generation aircraft that pursue high altitude and high speed, the design theory of third-generation fighter jets will pay more attention to real maneuverability and agility at medium and low speeds. Although the take-off and landing capability does not directly reflect maneuverability, it is also a relatively intuitive reflection. Especially for laypeople who dont know much about aviation or the air force. ?During the taxiing process just now, the J-10''s engine control system left a deep impression and strong confidence on Lei Qiang, so he finally chose to implement Plan B specified at the pre-flight preparation meeting. That is, a relatively radical plan. After confirming that the aircraft was safely off the ground, Lei Qiang did not let the aircraft continue to climb at a small angle. Instead, he quickly pushed the throttle and continued to pull the lever, allowing the prototype to rush straight upward at an angle of about 70. This is also the limit Xin Xiaowen set for him. Although the J-10 can theoretically maintain acceleration while flying vertically upward when carrying a light load and light fuel, it is still its first flight after all, so it still has to take its time. ?Of course, the so-called "take it easy" is relative to the limits of the aircraft. ?Due to the angle of the viewing platform, from the perspective of the audience at the scene, aircraft No. 1001 almost performed a vertical climb immediately after takeoff. The doubts on the viewing platform turned into exclamations, followed by warm applause. After a short and rapid climb, Unit 1001 reached the scheduled altitude of 2100 and a speed of 490. ?The weather conditions at the scene were excellent because of the beautiful weather. Even with an ordinary telescope, one could clearly see the posture of the two aircraft in the sky. According to the previous test flight plan, the next step is to circle the field for two weeks. The hovering angle in Plan B is also larger, close to 90, and there are two roll flights. Although they are not dazzling maneuvers, for the audience at the scene, seeing the first third-generation aircraft completely developed by our country take off is already surrounded by a huge sense of happiness. Chang Haonan, who had watched many J-10 first flight videos in his previous life, did not focus all his attention on the air. After the first lap around the field was over and it was basically confirmed that there was no problem with the flight conditions, he communicated with the flight test station through the intercom. Understand the feedback from test pilots in real time. And by the way, he guided the photographer sitting on coach 8 to take photos. In fact, he even wanted to repeat the old trick at first and then take charge of photography himself. ??I just thought about it and still didnt mention it. Chang Haonan is completely different now from a year ago. ? At that time, he was just a young technician who was just starting out. Although he had shown some talents, his own value did not exceed the level of a normal person. He could only fly as high as he could. ?Now that he has achieved a small achievement, I am afraid that even if he proposes it, it is unlikely to be allowed. In order to ensure adequate flight performance, the accident tolerance of tactical aircraft, including trainer aircraft, is several orders of magnitude higher than that of passenger aircraft. Look, its rolling, its rolling! ?Chang Haonan put down the walkie-talkie and heard another burst of excitement around him. He also raised the telescope in his hand again and looked at the sky. After all, this is a test flight content that was not available in the previous life. As an aircraft that focuses on agility, the J-10''s roll rate is among the best among third-generation aircraft. Two consecutive 360 rolls are completed in a short time, and the show effect is full. Obviously, the performance of the aircraft is quite good. And in the process of taking off for the first time, the pilot has been given enough confidence. This is actually quite difficult. Many models that were very successful later did not go well during the initial test flight. Su 27, F15, F16 might as well be like this. Even the J-10 in the original timeline is the same. ?Although there have been no major problems, there are quite a few minor problems. ?However, now, the No. 1001 aircraft, which has not experienced those two damage repairs, is obviously much more perfect. The test pilot even said on the radio that he didn''t think it looked like an airplane on its first flight. The moment he put down the telescope, Chang Haonan noticed that the leader in the front row had taken off his black-rimmed glasses and used this action to lightly wipe the corners of his eyes. ?At this moment, the walkie-talkie placed next to Chang Haonan rang again: The pilot reported that the aircraft was in very good condition, with sufficient fuel remaining, and requested a go-around and two more laps. Xue Chishou and several other people looked at each other a few times, and they all saw the same answer on each other''s faces. Approval of request. ?Yang Wei picked up the walkie-talkie and replied. Soon, the prototype aircraft that completed its second circle reappeared far away from the end of the runway and slowly descended. ?The test flight went smoothly, and there were even people on the viewing platform who were ready to get up and go to the tarmac to greet the pilot as he disembarked. ?However, the plane only lightly scraped the ground with its main wheels, and then accelerated and climbed again, returning to the air. After almost a full second of silence, everyone realized that this was part of the first flight. ?At this point, even people who dont know anything about aviation know that the plane should be in pretty good condition, otherwise it wouldnt be doing so much fun. The cheers and applause started again. ?Five minutes later, as a red and white parachute bloomed behind the aircraft, the first flight of Project 10 was finally successfully completed! Rongfei originally arranged a shuttle bus to take people on the viewing platform to the tarmac to greet the pilots, but because the number of people present to watch far exceeded the initial expectations, many people still had no seats. . ? Many spectators who were in their forties or fifties, or even older, couldnt wait to get on the next bus and immediately followed the car and flew all the way. Fortunately, the distance between the two is not far, otherwise Chang Haonan would still be a little worried ??If the plane and the test pilot were safe and sound, but something happened to the audience, it would probably leave a mark in the history of international aviation... ??When a flood of people rushed to the apron, the J-10, which had thrown away its drag chute, happened to follow the guidance and parked at the pre-designed parking spot. The moment the canopy was opened, cheers almost filled the sky. ?Lei Qiang took off his oxygen mask and flight helmet on his own, and then waved outside. The test flight just now was obviously not abnormal, at least it did not put any great physical burden on him. A young ground staff struggled to get through the crowd holding the boarding ladder and put it on the left side of the cockpit as usual. Then he felt as if someone was tapping him on the shoulder. "What" ?Halfway through his words, he turned around and found that what came into view was a face he had only seen on the news network in the past. Comrade, please go and fetch a ladder. We want to take a photo with the test pilot. Ehgood, good The young man who was personally instructed by the leader was a little embarrassed to speak in excitement, but he still moved the other boarding ladder from the coach 8 not far away in the shortest time, leaving Li Yong who had just opened the cockpit and the front seat. The photographer stared blankly. The second boarding ladder was quickly set up on the other side of the cockpit. ?Chief Engineer Xue Chishou and the top leaders took a photo with Lei Qiang, who had just stood up from the cockpit. Thank you, thank you for everything you have given! The leader looked around, first to the test pilot, and then to everyone around him and said loudly. ?According to Chang Haonan''s speculation, many people at the scene should have cried with excitement. As to why it is speculation Because his vision was also a little blurry. (End of this chapter) Chapter 405 Why is it you again? (10,000 per day, please vote monthly) Chapter 405 Why is it you again? (10,000 per day, please vote monthly) ?Nearly everyone present naturally wanted to take a photo with the test pilot and the aircraft at this historic moment. Just considering that Lei Qiang had just completed his first flight, even if his physical condition seemed normal, the post-flight inspection and test flight report still had to be completed, so after taking photos with some personnel including Song Wenchong, Yang Wei and Chang Haonan , he left the cockpit despite the strong request of the ground crew and stepped onto the ground again. ?At almost the same time, several handfuls of flowers from different individuals and units were delivered to Lei Qiang at almost the same time, so much so that he almost couldn''t catch them. Following that, there were all kinds of questions that flooded my ears. About the airplane, the first flight, and himself. ?Lei Qiang could only distinguish a few familiar voices to answer: The aircraft is very comfortable to fly, and the pole position operation is generally intuitive I cant feel the light effect in the cockpit. Its daytime. Well have to wait until we fly at night... The operating feel is generally light and the response speed is very fast, especially the power, the push rod has it! A minibus drove from a distance, with a medical team already on board. They would conduct a complete physical examination on the test pilot to eliminate the last hidden danger. ?Before getting on the bus, Lei Qiang shook hands and hugged several comrades who were responsible for key parts of Project 10. When it was Chang Haonan''s turn, he even patted him **** the back. Judging from the force used and the banging sound, he probably didn''t shoot other people because he was too old to withstand the blows. Comrade Haonan, your engine control system is as important to the pilot as the ejection seat! This is naturally a very high evaluation. While speaking, familiar faces appeared in Lei Qiang''s mind one after another, making him excited and a little sad at the same time. There are too many people who did not get to see this day. Considering that there are still some necessary post-flight inspections and maintenance to be done after the plane lands, and it is neither decent nor safe for a large group of people to stay on the tarmac for a long time in a mess, so after taking the pilot off the plane, remove the necessary In addition to the ground crew and other technical staff, a group of people quickly moved to the small auditorium of Factory 132 by car. ?Chang Haonan has also ridden in Toyota Coaster that was specially responsible for reception work in various units several times before, but this is indeed the first time he has experienced this model that has been specially modified to transport VIPs. In addition to the routine removal of seats and replacing them with conference tables, the material and size of the seats are also much larger, similar to those in first class airplanes. The cab and passenger cabin are separated, and there are many screens, communication equipment and simple living facilities installed on the car. It cant be said to be very magnificent, but overall it is indeed closer to the cabin of a passenger aircraft that has been reduced by a few sizes. On the way out of the airport, Chang Haonan looked through the side window of the minibus and saw many employees and family members of the 132 factory who had not been able to enter the infield to watch the first flight, staying on the roadside, some hugging each other, and some talking to each other. The team cheered, and some also wiped the corners of their eyes. It took 11 years from the project establishment in 1986 to the successful first flight. ?Although these people did not leave their names in the history books like Song Wenchong or Xue Chishou, they still devoted all their efforts to the No. 10 Project. Everyone regards this plane as their own child. Comrade Wen Cong, after the first flight is successful, do you have any follow-up plans for the subsequent development of Project 10? I want to hear it. ??The senior leader in the same car put down his hand to open the sunshade, turned around and asked Song Wencong, who was sitting in the row slightly behind. The tone of the question is relaxed and sounds more like ordinary casual conversation rather than a formal leadership question. Perhaps for this reason, Song Wenchong thought for a while and said sincerely: Chief, this question should be answered by Comrade Yang Wei. He is the main person in charge of the follow-up research and development work of the J-10. Obviously, this is creating opportunities for young people. Song Wencong, born in 1930, is nearly 70 years old this year. ?According to the original plan, he was ready to retire after completing the design of the J-7C. It was entirely because he could not let go of Project No. 10 that he gave up his leisurely retirement life and worked **** the front line until today. But as he gets older, he does feel that his energy and concentration have declined significantly compared to when he was young. ?Now that the J-10 has successfully made its first flight, he will at most **** the basic model until it is finalized and put into service. As for the subsequent longer-term development plan, there is no doubt that the baton will be handed over to the next generation. In fact, the chief designer of the J-10 two-seater model that is already in the design stage is Yang Wei. The world will eventually belong to young people. ??Yang Wei, who was further back in the row, was suddenly stunned when he heard his name, and then noticed the encouraging look from Song Wencong. ?So he composed himself and answered: "We currently have two prototypes in production, namely the No. 02 machine used for static testing and the No. 03 machine equipped with complete avionics and fire control equipment testing. About 40% of the test flight projects are composed of 01 and 03 Two first-stage prototypes will be used to complete it. According to the plan, the subsequent verification machines No. 04 and No. 06 will be upgraded in terms of overall design..." The two-seat trainer model is also developing simultaneously. The current planned name should be called J-10S. The overall design has basically come to an end. However, the prototype production work is still planned to be carried out after the single-seat model has basically stabilized..." ?Yang Weis answer is relatively general and does not involve too many specific technical details and proper nouns ??If you introduce a technical concept that is relatively unfamiliar to everyone, you may need ten other technical concepts to explain it. This will be endless and will only make the entire answer lengthy and lacking focus. But if you dont explain it, firstly, it will cause others to be confused, and secondly, it will also appear that they are not very smart. So this is basically the most effective way to deal with non-industry people. ??However, the chief in front of me also has an engineering background, and he almost went to university to become a professor. Although he is not an aviation major, he knows everything about some things, and at least his understanding is definitely online. So the two prototypes of 01/03 will adopt different design solutions from other prototypes that will follow. Where are the upgrades specifically? Project No. 10 was a project that he personally secured back then. Now that it has finally achieved some landmark results, he is naturally very concerned about its subsequent development. "We plan to use a boundary layer-free supersonic inlet, which is simply..." ??Yang Wei racked his brains in the hope of describing the DSI air inlet in a relatively easy-to-understand language, but the leader in front of him had obviously done a lot of homework: Is it the one the Americans are going to use on the JSF project? This answer is indeed beyond everyone''s expectations. You must know that the proliferation of consultations these days is not very developed, such as JSF projects and DSI air intakes. Not to mention laymen, even some ordinary practitioners, if Unless you specifically track the cutting-edge information of the industry, you may not be able to know it in such a timely manner. Yes, its that kind. It has a simpler structure, lighter weight, and smaller radar reflection area. It is currently the most cutting-edge technology. Strictly speaking, before real flexible skin technology is put into use, it is still difficult to simply define the DSI air intake as "better" due to its inevitable narrow optimization range. But it is definitely more advanced and more difficult to design. Can we guarantee that this cutting-edge technology will be put into use on the fourth prototype? I mean, will the pursuit of advancement affect the progress of the project? A knowledgeable leader obviously considers issues more comprehensively. You can rest assured about this. In fact, the DSI air intake has been pre-tested by Comrade Chang Haonan on another model..." ??The chief followed Yang Wei''s instructions and looked at Chang Haonan, who had been silent. ?At this moment, the latter was very sure that he saw a flash of emotion called "shock" in the other person''s eyes. ?That means probably: Why is it you again? (End of this chapter) Chapter 406 Make cakes for leaders Chapter 406: Making cakes for the leaders That''s right, the two people have actually met before. ?Last year, in Shengjing, the test flight site of the No. 04 J-8C prototype aircraft. ?Chang Haonan''s appearance doesn''t have many characteristics, at least not to the extent that people can''t forget it after just one glance. But in this situation, his age is the biggest feature. In fact, the specifics of who can get on which car today and whether they can have direct contact with the big leaders have naturally been reviewed by the security department early in the morning, and even the list of people in this car has been finalized. The chief himself must have also Saw it directly. ??However, looking back, it is impossible for him to have the energy to understand the specific identity information corresponding to each name one by one. ?Of course, the more critical issue is Under normal circumstances, who would have thought that the same person would have appeared at the test flight sites of the Project 83 and Project 10 models one after another, and also assumed important tasks in both cases? Furthermore, the Organization Department just recently approved the establishment of a new enterprise under the Academy of Sciences, and the person in charge is the young and somewhat shameless Chang Haonan. ?Shouldnt he be busy preparing to build a leadership team in the capital at this time? In short, even if you still have some impression of this name, your first reaction must be a coincidence of the same name. Therefore, when the chief really recognized that the other person was the young man he had met at Shengjing Beiling Airport more than half a year ago, even he who was used to seeing big winds and waves was really surprised. ?However, the big leader is a big leader after all, and his surprised expression only lasted for a short moment, and then he gently pushed up his black-rimmed glasses, indicating that Chang Haonan could start introducing the situation. ??The latter really had no psychological preparation before, and was indeed a little confused when he was suddenly asked to speak by the big leader. Fortunately, he provided Sun Huizhong with the overall design method and technical guidance on key parts. He had the goods in mind and would not panic in his heart, so he simply organized his words and said: "Chief, it''s like this. I presided over the development of a brand new design tool some time ago, so when designing the DSI air intake, we can use a different design method from the Americans. Although the calculation is more difficult, the efficiency is much higher. , its normal to be ahead of them Chang Haonan spent a few minutes to briefly introduce the advantages of the close cone method compared to the generated body method, and the Torch Company has just released a test version of the TORCH Multiphysics software. It was a work progress report that was conducted quietly. Thanks to a speech that was widely circulated in his previous life, he understood some situations better than anyone else sitting in the car. Although the most outlandish part of that speech is the part about "a person''s destiny...self-struggle...historical journey...", if you have read the full version, you will know that the chief minister in front of you actually has a deep understanding of the engineering profession he was engaged in when he was young. Very concerned and proud of it. So, although Chang Haonan still omitted all the theoretical calculations, he still retained some professional knowledge from an engineering perspective. It must not only be understood by the leader, but also be enjoyed by the leader. Judging from the other partys intoxicated expression and frequent nodding, the effect of his words should be quite good. "New design methods and theoretical tools are good. Scientific researchers must be brave and good at innovation. It is important to learn from the advanced experience of developed countries, but after all, we must also have our own ideas and do something that others have not done. thing." After some high praise, the senior leader signaled Chang Haonan to continue speaking. Obviously, I am still satisfied with what I just heard. Chang Haonan happened to not have finished speaking yet, so he calmed down and continued: "In addition, although there are very advanced tools and theories, I personally have confidence in the perfection of the design, but from the perspective of risk control, almost half of the J-10''s subsystems have already applied new technologies. If we continue to It is still risky to put an air inlet that has not been tested in practice. Therefore, in order not to delay the progress of Project No. 10, in the first half of this year, I teamed up with comrades from Guizhou Airlines to plan to put the DSI air inlet first. Conduct technical verification on a new higher-education aircraft improved from the JJ-7. If there is technical verification, it will indeed be safer. The chief was obviously very satisfied with Chang Haonan''s answer, and then he naturally paid attention to the higher education aircraft mentioned by Chang Haonan: So whats the progress of this verification machine now? What step has it taken? And the latter is waiting for this problem. "The design of the entire aircraft has been basically completed, and the wind tunnel is now being blown in Fucheng. If the design specifications can be met, the next step is to start producing the prototype and then test it. After obtaining detailed data about the DSI inlet , will be used on Unit 1004. This answer reflects the rigor of an engineering staff and the pursuit of reliability and safety. More importantly, although money is not mentioned anywhere, money is everywhere. This is also the idea that Chang Haonan first designed for Coach 9. Hold the thighs of Project 10 tightly. ?Although the name is not as good as the independent item, the actual benefits will only be greater. ?An advanced trainer aircraft project does not require a lot of manpower and material resources. In the last life, under more difficult conditions than now, Guifei finally even completed it on its own, but it only took a few more years. Now as long as a little leakage of funds from the No. 10 Project is enough to solve their most urgent survival problem. Today, China''s scientific research funding and military expenditure are indeed not sufficient, but it can be regarded as entering a period of rapid growth. Compared with the turn of the 1980s and 1990s, it is not a little bit better. It will certainly not be a burden to make targeted investments in at least one or two common projects. ? It''s just that you have to give your superiors a suitable reason, otherwise there will be too much money for you, so why invest in your project alone? ? And "verifying Project No. 10" is undoubtedly the most reasonable explanation. As expected, the chief nodded immediately: We still need to hurry up on this matter. We would rather let technology and other equipment go before it affects the overall progress of Project No. 10! This sentence is enough. ?The big leader stated that in many cases it is not necessary to deploy everything in detail. As long as he reveals his own tendencies, someone will naturally be responsible for getting the specific things done. ?Of course, everything has two sides, which also means that he cannot write all his likes, dislikes, joys and anger on his face like ordinary people. ?This is in the relatively closed space of a private car, otherwise Chang Haonan might not be able to detect even the subtle changes in his expression just now. ?After the topic about the DSI air intake ended, Yang Wei once again took up the conversation: "In addition, regarding the future two-seat model, we plan not to continue the idea of ????Jianjiao 7 or Jianjiao 6 and design it as a specialized training aircraft of the same model. Instead, we will learn from advanced foreign experience, like the Su-27UBK or F16D , so that it has the same complete combat capabilities as a single-seat aircraft, so the naming method will no longer be JJ-10, but J-10S. The two-seater model of an aircraft is generally rarely paid special attention to by laymen. After all, it looks not much different from a single-seater at first glance. But for Yang Wei himself, the J-10S will be the first time he takes on the role of chief designer. As a teacher position, I naturally hope to be able to complete it more beautifully. In the early years, the equipment of the aircraft was not advanced enough, and the aircraft itself was also small. It was quite troublesome to fit more than one person in. Therefore, most aircraft designed in the 1970s or earlier were either two-seater (F4, F14). ), or there is no two-seater at all. If it must be modified from a single-seater, then it will either lack a few guns, or there will be no radar at all. In short, there is no need to expect to have complete combat capabilities. But on the third-generation fighter jets, single- and two-seaters have gradually begun to obtain the same airborne equipment. In this way, although the two-seat model will have some discounts in flight performance, it can still perform the same tasks as the single-seat model without causing any problems. Too many resources wasted. After all, the unit price of fighter jets at this time is already quite astonishing. One-fifth or one-fourth of the aircraft in the fleet can easily be left idle, which even a superpower cannot afford. In other words, Project 10 will develop a total of four different configurations using two types of air intakes and single/double seats in the future? Thats right. ?Yang Wei nodded: We are not going to waste models like the 01 and 03 prototypes that use rectangular adjustable inlets, because their theoretical maximum speed and ceiling are more advantageous. "This may not be important to the Chinese Air Force, which already has Su-27 and J-8C, but it will still be attractive to some small and medium-sized countries that want to use one aircraft to take over all tasks, so we plan to use this as a basis Basically develop a model specifically for export to compete with the F16 in the market! When he said "grabbing the market with F16", a gleam suddenly flashed in the eyes of the chief sitting opposite. In this era, due to the huge gap in national power between China and the United States, there was indeed a sense of powerlessness in the face of many things. This leader was later called the "Forbearance Emperor". ?But being able to endure does not mean that you are willing to endure it. The clay figurine still has a certain amount of anger. As long as there is an opportunity, who would not be willing to open up and express his anger openly? "well!" He said two good words in a row, and even patted the armrest of the seat next to him: You should have this kind of ambition! (End of this chapter) Chapter 407 Im super, duck wing! Chapter 407 I am super, duck wing! There is no need to mention the subsequent celebration meeting and the celebration banquet at noon. Even the leader, who was busy with everything, stayed at Field 132 for almost the first time for most of the day. It was not until the afternoon of that day that he went to the assembly workshop to take a look at the No. 03 prototype machine that was in the process of being manufactured. The first flight of a new fighter jet cannot be hidden at all. Not to mention the various big commotions before the first flight, which led to the wall-climbing party and the grass-climbing party squatting around the 132 factory. In fact, since the 132 factory is also responsible for the production of some civil aviation parts, there are simply not many in the factory. There are few engineers from the West. Even though their area of ??activity is restricted and they cannot run around at will, they are neither deaf nor blind and they are all insiders. Even if they rely on the wind and shadow, they will know what you are probably doing. As early as when prototype No. 1001 was towed out of the factory for ground testing a few months ago, the news that "China''s first self-produced third-generation fighter jet has been completed and rolled off the assembly line" has already spread. In fact, more than ten years after the previous life, the first flight of the J-20 had related news a few months earlier. The reason why many people were surprised was simply because there was no particularly developed self-media back then, and news circulation channels were limited. ?Besides, there is no need to hide this kind of thing in the first place. At best, it can be handled in a low-key manner and not take the initiative to publicize it. ? For matters that do not involve specific technical details, strategies and tactics, keeping secrets means keeping things secret. Therefore, although due to policy reasons, the news of the first flight of the J-10 prototype could not be reported publicly by official sources at the first time, there was no control over the relevant news. The plane took off for the first time in the morning. By the afternoon, anyone who paid a little attention to the development of China''s aviation industry basically knew about it. At dinner time that day. ?Yangcheng, Haizhu District, in an Internet cafe near Yixian University. ? After Xi Boyang finished his internship at the school publishing house for the day, he went to the canteen as quickly as possible to grab a dish and two ounces of rice. He didn''t even have time to eat, so he rushed all the way here with his lunch box. Just a year ago, only a few coastal cities and regional central cities in China provided Internet access services. But by mid-1997, all prefecture-level cities that could count had basically been able to access the Internet, and even some Computer rooms with Internet access have appeared in counties and towns in the region. ? Internet cafes, an emerging product, have also quietly begun to spread in some cities. ??Although the Internet fee is extremely expensive and the speed is still very slow, it still cannot stop people''s enthusiasm for contacting new things. ?Especially near schools, it has become a hot spot for Internet cafe business. ?The "Frenzy" Internet cafe that Xi Boyang frequented just opened here two months ago. ? Pushing open the slightly worn glass door, the rush of cold air inside even made him shiver involuntarily. ?This is also the main reason why he would rather spend an extra dollar an hour and come to this restaurant. There is air conditioning, and it is turned on very well. Anyway, with my part-time job at the publishing house and the royalties from contributing to magazines, I can still afford it. Compared to several other competitors that only have electric fans and are filled with the smell of sweat, the owner of Kuangchao is obviously very wealthy and has spent absolutely no expense on investment, which has also brought a better source of customers to his Internet cafe. After entering the door, Xi Boyang regretted that he only wore a half-sleeved shirt today, but now he couldn''t even bother to go back and get another piece of clothing. After skillfully handing over his ID card, paying, and getting a bottle of mineral water at the front desk, he borrowed a coat from the boss and put it on his body, and then quickly followed the instructions posted on the wall. In front of your own machine. Another thing that pleased him about this Internet cafe was that it provided soft seats like sofas instead of hard benches. ? ? Xi Boyang pressed the power button on the main chassis, then sat down on his seat, waiting for the computer to turn on. The running just now made him slightly out of breath despite his average physical strength, and he was even a little dizzy due to lack of oxygen. ??Although he usually comes here often, he is not really an Internet-addicted teenager. The reason why he came so eagerly this time was mainly because of a rumor he accidentally saw a few days ago. It is said that Chinas first domestically produced third-generation fighter jet may make its first flight today! In fact, similar rumors have appeared almost every week since a blurry photo of a J-10 being towed by a tractor appeared a few months ago, and it has long been difficult to win people''s trust. ?? But this time, the person who broke the news was an old man who is quite famous in the equipment photography circle and his family lives in Chengdu. At the beginning of the year, when the ugly and distinctive J-7F made its first flight, he was also the first to send out relatively clear pictures. ??Thats right, unlike Xi Boyang, an honest character who only shoots public content, the other party is a wall-crawler. Of course, at this time, there are no management methods for this group of people. Climbing walls to take pictures is still a gray area wandering on the edge. The slogan that has been widely circulated in later generations has not yet appeared. Even if they are discovered, they will be yelled at. A few voices drove him away. ?It wasnt until a few minutes later that the computer was booted that Xi Boyang sat up straight again, opened the lunch box in front of him, and took a few bites of rice into his mouth while connecting to the Internet. ??If placed in the computer room of the school, this kind of operation is enough to make the management teacher''s blood pressure explode, but in Internet cafes, it is not so particular. The one who paid the money is God. Not to mention eating, no one cares about smoking. Damn it, why is the speed so slow today ?Xi Boyang expertly entered the URL of the online chat room, but the subsequent preparation time for reading the message was like a torment for him. It wasnt until about half a minute that the black chat room window interface was finally loaded. He took a brief look and found that there were hundreds of pages of messages compared to yesterday. In this era, due to the unfriendly Internet speed, the design of chat rooms is closer to later forums than to QQ. Or WeChat, you need to turn pages to browse. After all, if there is no limit on the number of messages loaded on each page, then a page will no longer be loaded after a few days... He switched directly to the first message of the day. I found out that the message was sent by the old man whose online name is "Several Degrees of Tenderness". The content is quite simple: Friends, I took the photo Following it is an attachment. In JPEG format. Obviously a picture. ? Its just that this BBS obviously does not have a picture preview function, so it needs to be downloaded. ?However, combined with the other party''s text, it is not difficult to guess the content of this picture. ?Xi Boyang''s hands were shaking a little, so that he tried three times in a row before he finally clicked on the correct position. Its a matter of seconds to wait like years again. Almost as soon as the download progress bar was full, he double-clicked to open the picture. TMD, this crappy computer Perhaps because the file size is a bit large, after the image file is opened, the entire image is not displayed directly. Instead, the image is gradually loaded from the top to the bottom according to the standard logic of JPEG. At first, it was a blue, but slightly gray sky. Immediately afterwards, some blurry branches were exposed at the edge of the picture, which seemed to indicate that this picture was taken while hiding behind the trees and facing the sky. Oh my god, wheres the plane? ? Xi Boyang''s eyes were fixed on the screen, and the chopsticks in his hands were bent a little due to his subconscious exertion. Finally, a black cone-shaped object appeared in the middle of the screen. ?Xi Boyang, who has photographed many airplanes, knew that it should be the radome. What configuration of aircraft will it be? ?His mood at this time was like a gambler waiting for the lottery draw. The photo of the aircraft a few months ago was almost directly facing the engine. The angle was extremely poor and blurry. It could only be seen that it was a single-engine and single-vertical tail design. Therefore, everyone basically didnt know what the J-10 would look like. Divide into several factions. At the beginning, the most mainstream view was that it would look more like the F16. But some people soon recognized that the aircraft did not have a horizontal tail, so it could not be a traditional design like the F16, and speculated that it might be similar to the Mirage 2000. Considering that China had in-depth contact with Dassault and even planned to purchase Mirage 2000 as the main equipment of the air force, this opinion quickly became mainstream. ?Of course, there are also some netizens with good painting skills who have come up with various fanciful designs. Now, its time to reveal the answer. ?Perhaps taking care of Xi Boyang''s mood, the computer directly loaded almost one-third of the photo content. So, the entire plane came into view without any psychological preparation. Obviously, its not the F16. It is true that it is the main wing of a large delta wing, but it is not a Mirage 2000 either. Because in front of the big delta wing, there is a pair of wings with a smaller area. ?This strange appearance made Xi Boyang''s brain almost freeze for a moment. But he soon searched for a related noun from his memory ? ? The Swedes have used this design with the main wing at the back and the small wing in the front on the Saab 37 "Thunder" fighter. Im super, duck wing! With an exclamation, the convenient chopsticks in Xi Boyang''s hand were finally overwhelmed and broke into four pieces with a snap. Sorry, I was a bit busy this morning, and I forgot to set the time to send this chapter... (End of this chapter) Chapter 408 Military announces rescue plan Chapter 408 The military announces a rescue plan Compared to traditional aviation powers such as the United States, the Soviet Union (Russia) and France, Sweden is obviously much less well-known in this field. In fact, in this era, the popularity of Saab aircraft in China may not even be as good as that of Saab cars. ??If Xi Boyang had not obtained some English information through various channels, he would not have known that such a seemingly inconspicuous small Nordic country actually had its own military aircraft product system. ??He threw the broken chopsticks aside, looked at the pictures on the screen, and leaned back on the back of the sofa chair. What else is there to eat? This picture is enough to fill my stomach. Its so beautiful... After recalling the strange appearance of the Saab 37, Xi Boyang suddenly felt that although the aircraft in front of him also used a canard + delta wing design, it still looked pleasing to the eye, especially the slender middle section of the fuselage. The "wasp waist" design highlights one''s **** appeal, almost making him, a grown man, unable to control himself. As a photographer who has been photographing aircraft for many years, Xi Boyang has basically seen all the main models of the Chinese Air Force with his own eyes. The attraction that this aircraft brings to him now is no less than the first time he saw the Su-27 that had just arrived in China. ??If the beauty of the latter is more reflected in the power of the heavy fighter, then the beauty of the J-10 in front of you is closer to handsomeness. In terms of analogy, the former is like Zhao Yun, while the latter is like Zhuge Liang. Xi Boyang, who often watches the Three Kingdoms, quickly thought this way. I just dont know how the performance is The unusual design was a mixed blessing for him. Happily, this at least shows that Chinas new aircraft is not simply a copy of an existing mature model, but has its own unique design language. What is worrying is the lack of a reference that can be used as a comparison, and it is really difficult to infer the performance. Innovation is a good thing, but if it is not done well, it may have negative effects. ?But soon, Xi Boyang recalled his experience when he saw the J-8C performing a flight demonstration in Xiangzhou in November last year. ?This gave him some confidence. The third-generation fighter jets are, after all, better than the second-and-a-half-generation fighters. Im not asking too much, as long as it has better performance than last years J-8C ?Xi Boyang whispered to himself while minimizing the photo, ready to see what other people on the BBS thought of it. ?Unsurprisingly, most peoples first reaction was to admire this novel design. ??If some traces of the MiG-21 and MiG-23 can still be found in the J-8, then this new aircraft, which should be named the J-10, is at least completely different from the mainstream third-generation fighter jets. No matter what the specific parameters are, this at least means that China has gradually formed an aircraft research and development system with its own characteristics. ?Xi Boyang turned down a few more pages. After the initial cheers and a lot of rainbow farts at the photographer, the topic quickly ended up on the combat effectiveness of the aircraft. The size seems to be similar to that of F16. It should be comparable to F16, right? I feel that in this way, the equipment system of our air force is almost the same as that of the United States. The two third-generation aircraft, which are light and heavy, are also the standard configuration of the air forces of major countries..." The background is a blue sky, and there is no reference object. How did you figure out the size? You are stupid, arent there two models of Thunderbolt 8 hanging under the wings, and there is also a Coach 8 flying next to it, you will know by comparison... Although there is no necessary connection between size and combat effectiveness, the first time I saw this aircraft, my intuition told me that it would not be a problem to compete with the F16..." ?Under this situation, the first thing that most people think of for comparison is of course the U.S. Air Force on the other side of the ocean. It is no secret in this circle that the Su-27 is going to be domestically produced. Therefore, it has long been compared with the F15, which is also a heavy fighter. So the obviously smaller aircraft in front of us will naturally be compared. Compare to F16. After all, most people have not forgotten that less than a year and a half has passed since the two aircraft carrier battle groups showed off their power at home. Since the Su-27 can currently only use Russian-made ground support equipment, the readiness rate and deployment flexibility are greatly affected, as many well-informed people know. ??The J-8C, which debuted at last year''s air show, barely gave people whose confidence had reached rock bottom some hope. But it is still a second-generation improved aircraft after all. Even if the aerodynamics are modified and the avionics are updated, it is still far from a true third-generation fighter. Hence, everyone has been waiting for a truly domestically produced third-generation aircraft for a long time. ?Now that I finally get to see my true appearance, I naturally cant help but want to compare it with others. Looking at the passionate words on the screen, Xi Boyang showed a happy smile. ??This kind of behavior of relying on visual inspection and then playing beast chess in vain is of course meaningless from a military point of view, but no one expected a group of civilians to discuss any military results. What really matters is faith. The only thing we fear is fear itself. Especially in this era when powerful enemies are so powerful that they seem almost invincible. Perhaps the confidence brought by any one thing individually is insignificant, but when things come together, they will form a big river rushing down. Looking at the continuous discussion on the page, he, who had been just staring at the screen without speaking in this chat room, finally couldn''t hold it back. He pulled the keyboard in front of him and participated in the discussion with his unskilled fingering. ??Although the air outlet of the air conditioner was right next to him, the cold air spurting out could not affect the warmth in his heart at all. BBS, although there are certain thresholds for use and is not conducive to promotion, it is precisely because of the threshold that it is equivalent to user screening to a certain extent. Hence, in the first few dozen pages of discussion, the entire atmosphere was relatively normal. Until someone posted another picture in reply. Ive seen airplanes that look almost exactly the same in a book before. Take a look at this. "Um?" ?This reply made Xi Boyang feel shocked. So he spent nearly a long minute downloading and opening the picture. It is indeed an aircraft that looks very similar to the J-10 in the picture just now. After impatiently refreshing the web page several times, a further explanation finally appeared. A fighter jet jointly developed by the Great Patriotic Republic and the United States. It completed its first flight probably in 1986, the year the No. 10 project was established, but in the end it did not continue to develop because of overlapping positioning with the F16 ?Although this person did not point it out directly, the implication behind his words was very clear, that is, the J-10 that had just made its first flight should be an imitation, or at least a large reference to the Patriot fighter in the picture. Xi Boyang, who was in front of the computer, instinctively felt that something was wrong, but he couldn''t express it clearly. ?Xi Boyang enlarged both photos and compared them carefully. However, the picture taken during the test flight of the J-10 is really blurry, and the angle was from the side taken diagonally upward. Only some basic features can be seen, such as the belly air inlet, canards and enlarged delta wings, and a single engine and single vertical tail. class. In summary, it seems to be somewhat similar to the plane named "Lion". He scratched his hair in distress. In fact, if you really want to talk about it, it is not shameful to refer to mature foreign models when designing an aircraft. Even before today, everyones expectations for self-developed third-generation aircraft basically did not exceed the similar F16 and Mirage 2000. ?But on the one hand, everyone has been happily discussing the issue of independent design for a long time, and now it is a bit jarring to suddenly intervene in such a thing. ?On the other hand... Since its already a copycat, why not just find a more successful one? Although the atmosphere in the chat room is still relatively harmonious, the direction is obviously different from before. Obviously many people are like him. After seeing the news just now, no matter what they say on the surface, they still feel uncomfortable in their hearts. Sigh It would be nice if there was a more authoritative source ?At the same time, Chang Haonan, who was in Chengdu on the other side, was also feeling troubled. ?Of course, he did not enter that BBS chat room, and even if he did, he would not have any other ideas because of the content in it. Let alone the late 1990s, even more than 20 years later, there are still a group of people who are obsessed with finding a father for domestic equipment. He had nothing good to say about this group of people. Not everyone can be brought to the same front. ??The problem that troubled him was that the photographer who followed the J8 to take pictures was a second-hand man, and his skills were really not good, even worse than Chang Haonan himself who had experienced the era of smartphones. ??The plane that was originally quite good-looking was either backlit, stubby, or out of proportion when he photographed it. He picked through several piles of photos, not even one that could be promoted in the internal publication. Let alone realize his longer-term idea of ??establishing a less formal, semi-official propaganda channel. ?Propaganda positions are also positions. If you dont occupy them, they will naturally be occupied by others. Formal channels are subject to policy and identity restrictions, and some matters cannot be reported directly. ?It is entirely possible to consider providing official material support and establishing a new team composed of non-staff personnel and oriented towards publicity effects as the front end. Even if it is impossible to completely suppress the fifth column sponsored by foreign foundations for a while, we should still try to fight. To hone the combat effectiveness of the troops in actual combat. ?However, looking at the strange photos covering the table in front of him, Chang Haonan suddenly had the urge to take pictures. TMD, how can you do good publicity with such an insect? (End of this chapter) Chapter 409 Aircraft exports still need to strictly control publicity Chapter 409: Aircraft exports still need to strictly control publicity ?Ideas are just ideas. The departments involved in the military propaganda matter have almost nothing to do with Chang Haonan''s current influential technology and industrial system. Without any reasonable reasons, it is always difficult to intervene directly. What''s more, he is not a professional in this area. At most, he can only be considered to have experienced the impact of the explosion of information in the self-media era, and has been influenced by it, so he has a little understanding of it. ??If it were really entrusted with such an important task as conducting research and development, I''m afraid it wouldn''t be able to shoulder this responsibility. So in the end, he could only take a few deep breaths in a row, and then he could barely control his blood pressure, which was almost off the charts. It can only be started from the grassroots level, little by little. Thinking of this, Chang Haonan reluctantly found two pictures with a slightly normal angle and composition from the table and handed them to the publicity officer. Then he put all the remaining photos into an envelope, got up and went upstairs to the floor where Vice President Rong Fei Manager''s office. Since Unit 1001 did not encounter the major setbacks of the previous life after the first engine start test, Comrade Yang Baoshu, the general manager who was already relatively weak at this time, did not continue to work despite his illness. Most of the daily management work was handed over to Luo Hairong, director and deputy general manager of Rongfei Group. ??The latter also majored in aircraft design, but he soon realized that his academic talent was limited, and after graduating from undergraduate degree, he quickly switched to management graduate school. Obviously, this self-awareness is very good, because anyone with a discerning eye can see that if there are no big surprises, he, who is not yet 40 years old, should be able to officially take over Rong Fei soon. Although it was already dark, not surprisingly, there was still some light in the office. ?The first flight is just one of the countless nodes in the process of an aircraft from project establishment to finalization. Naturally, everything will not be fine after the flight. Or rather, for a considerable number of project participants, the first flight is the real beginning of their work. ?The reason why Chang Haonan looks relatively laid-back is because as a "non-staff" member of Project No. 10, he does not need to participate in a lot of desk work, but Luo Hairong obviously does not. As the deputy general manager who is actually responsible for daily work, most administrative matters are completed by him. ?Inside the room, the latter was concentrating on typing on the computer keyboard and did not notice what was happening outside the door. ?Until Chang Haonan knocked lightly on the door, Luo Hairong, who heard the sound, poked his head out from behind the huge monitor: Mr. Chang? He was stunned for a moment before he recognized the person''s identity. Although the two had met a few times before, they didn''t have much direct communication. Mr. Luo, I just looked at the photos taken by our photographer during the first flight. Its really... hard to describe... ?Chang Haonan placed the envelope in his hand on top of the CRT monitor and handed it to Luo Hairong across the desk. The latter deftly pulled out the pile of photos and quickly flipped through a few. The basic requirement for accompanying flight photography is that the details are clear and the content is comprehensive. This way, if any problems are exposed during the flight of the prototype, it will be easier to review afterwards. I think these are all in line with the requirements, right? After all, Luo Hairong graduated with a serious major in aircraft design. Even though he has been taking the administrative route since then, he still has some basic knowledge. Thats true from a technical perspective. Chang Haonan replied somewhat helplessly: But just now I and the publicity officer wanted to select a few of them and put them in publications published within the aviation industry, but we couldnt find any that met the requirements. Hearing what he said, Luo Hairong picked up the photos that had been placed aside again and spent a few minutes reading them from beginning to end. Is it an internal publication He touched his chin lightly, looking a little embarrassedhow should I put it, it really didnt look good: Actually, just pick a few pictures at random. According to my experience, neither leaders nor employees will look at them ??Although the aviation industry in this year has begun corporate and group operations, the customers are either other OEMs or simply the People''s Liberation Army, so there is really no need to publicize it in a big way. Times have changed, Mr. Luo, according to our future plan, the current configuration of Unit 01/03 is mainly for export. ?Chang Haonan gently tapped the monitor in front of him and said to Luo Hairong, who was obviously a little shaken: "In the past, although our aviation industry also sold aircraft, they were mainly cost-effective models, and the buyers were mainly customers who had no other choice. It doesn''t matter whether they publicize it or not, but the J-10 can''t compete with the current international market. The potential customer base of the third-generation fighter jet that competes head-on with the best-selling F16 is very different from before. It is still necessary for the oil tycoons in the Middle East and the Southeast Asian countries that have just become rich to get some good-looking promotional materials. , you see, whether it is Lockheed, Dassault or Sukhoi, they have made a lot of efforts in this area. ?At this time, the Asian financial crisis has not completely erupted. Malaysia and Thailand are still prosperous. Since there are various irreconcilable conflicts within Southeast Asian countries, they are quite active in preparing for war. The latter even bought a light aircraft carrier of over 10,000 tons from the Spanish Bazan Shipbuilding Company. ??At one time, many Chinese military fans were jealous. When these emerging countries buy equipment, in addition to the normal performance evaluation and bidding process, they also pay special attention to one aspect. I saw it right and bought it. So a good-looking promotional video is very important. ??For Luo Hairong, who is about to be promoted to general manager, he doesn''t care about other things, but at this moment, the export of aviation products is definitely one of the achievements that he needs to pay most attention to. Whats more, Chang Haonan brought up this matter. ??The reason why Luo Hairong was promoted to the position of deputy general manager at the age of 36 is largely because he presided over the signing of an upgrade and export order for hundreds of J-7Fs last year. So if you really want to say it, he can be said to have benefited from Chang Haonan. After all, without the technical support provided by the latter, the J-7F model would probably have to wait a few more years to be finalized. This time is obviously too long for the rapidly changing international situation and the arms market. And if we just sell the J-7MG ?Then you can really only make hard money. Although the J-7F is still a "cost-effective" model according to the other party, the profit margin is frighteningly low in the aviation industry, and it has to be shared equally with more than a dozen other investors. However, the other party paid the advance payment directly in US dollars in cash. Still, the entire Rongfei staff had a good year. At least the kind that can let go of eating meat. ??Luo Hairong knew in his heart that Pakistans economic situation was worse than that of China, so it was impossible for it to be so wealthy. Behind this order was the support of financial sponsors such as Saudi Arabia or the United Arab Emirates. He doesnt care why these Gulf countries are keen to spend money to help others build their armies, but one thing is clear. The oil tycoons in the Middle East are really rich. So when Chang Haonan once again mentioned the export of J-10, it was difficult for him not to be tempted. ThenMr. Chang, what you mean is Our foundation in this area is relatively poor, so well do it bit by bit, but the first step is to at least have a fixed candidate. We cant just pull someone over every time something happens... (End of this chapter) Chapter 410 Students from Maranello Chapter 410 Students from Maranello At the same time Chang Haonan and Luo Hairong were discussing how to sell the aircraft faster. France, Paris. ?Professor Fernando Lorenzo, who is in the office of the National Road and Bridge School, is carefully examining a scanned photo that has just been sent to his mailbox on the computer screen. The email came from Julian Cizeron, an old acquaintance of his at Airbus. The other party is currently stationed in China and serves as the European representative at the Flight and Meteorological Safety Laboratory jointly invested by China and the EU. When the two last contacted by phone, Cizeron complained that the cooperation agreement had only been signed a few months ago, and the laboratory was still a mere structure with staff but no space, so they had nothing to do at the moment. We were temporarily arranged to inspect the situation at a factory that once produced the nose parts of Boeing 707 and MD82 aircraft. ?His evaluation at the time was that if the factory was used to produce passenger aircraft in the 1980s, it would be able to pass the test, but it was completely incapable of producing new Airbus aircraft. He wondered if he had chosen the wrong path to come to China. ? As a former Dassault and current Airbus engineer, it is easy to leave Paris and Toulouse, but it is difficult to go back. However, in this email sent a few hours ago, Cizerons attitude took a 180 turn. Because today he saw a "very strange" fighter jet and happened to take a photo of it flying in the air. This is the one Lorenzo is looking at on the screen. In the body of the email, Cizeron described his feelings in a shocking tone. "I noticed that it did not retract the landing gear the whole time, so today should be the first flight of this aircraft. As far as the first flight is concerned, its movements are already quite violent. Not only did it climb at an almost vertical angle at the beginning, but it also climbed at an almost vertical angle. It performed several steep turns and two high-speed rolls, showing strong maneuverability and agility..." The large block of mixed uppercase and lowercase letters, as well as the continuous use of symbols and exclamation letters, make this email unfriendly to readers. If any student dares to write an email like this, he will be called over by Lorenzo and scolded. One meal is not enough. In fact, even if it was sent by an old friend, he only read about a quarter of it and didn''t want to continue. ??But after he clicked on the picture in the attachment, Lorenzo was stunned for a moment, and then patiently went back and read all the following content: Although I dont have any reference, my intuition tells me that it should be larger than the Mirage 2000, and although I am not willing to accept it, it should not fall behind even in the agility that the Mirage 2000 is best at, and it also uses An aerodynamic design that is completely different from all currently known models... It may look very similar to some Swedish or Israeli fighter jets, but you should know that they just use canard and delta wing designs. In essence, The pneumatic coupling is completely different..." I watched the video of the flight performance at last years air show, but the aircraft at that time did not have much outstanding aerodynamic appearance. It mainly relied on abundant power, but this one is completely different..." "It''s hard to imagine that this is an aircraft designed by the Chinese. I mean, compared to their manufacturing level, it''s completely unimaginable. These Chinese people either deliberately found a factory with old facilities to deceive and conceal their Real level, or any special abilities or skills in aircraft design..." After reading the whole thought-provoking email, Lorenzo turned his attention to the photo again. It is indeed very clear, there is no sign of candid photography at all, and it was probably a telephoto lens. The Chinese dont seem to be promoting this model with much fanfare, but they obviously dont want to keep it secret either. Otherwise, it would be impossible for a foreigner to use a camera with a long lens to shoot with such fanfare. ?Of course, due to the angle problem, it is still impossible to see the entire plane from this photo alone. ?However, Cizerons judgment is correct. The Chinese do have some special skills in aircraft design After the agreement was signed at the beginning of the year, JAA obtained the ice simulation and prediction software as agreed. Although it was only a limited-function version, during the trial process at several airports, it still helped them predict many risks that would cause flight delays in advance, saving airport operators and airlines hundreds of dollars in a few months. million euros in associated costs. Otherwise there would be no Flight and Meteorological Safety Laboratory. ?Furthermore, the black technology that the other party can come up with seems to be far more than that... ?Thinking of this, Lorenzo turned his attention to another email in his mailbox. That was an official reply email sent by a company called "Torch". The content is that the National Road and Bridge School has passed the trial review, and the installation files will be shipped by air express after the relevant user manuals and legal documents are translated. Although he has not personally experienced this software, he can already get a glimpse of its advanced nature from the preliminary documentation sent by the other party. As a core member of Dassault Software Department, Lorenzo is extremely sensitive in the field of numerical simulation. He almost judged from the promotional materials that the developer of this software should also be an aircraft designer, not a programmer, because the other party had an extremely accurate grasp of the pain points faced in actual engineering projects, and the solutions described were completely consistent. logic. ?In addition, this TORCMultiphysics is not just a design simulation software. Its calculation method can play a role in manufacturing and even new material development and other fields as long as its calculation method is slightly expanded. As to why this was not done Maybe its because of the lack of manpower, or maybe its because we havent considered this layer yet Lorenzo obviously never imagined that in addition to the seemingly top-level professional version (ver.professional), this software actually has a professional enhanced version (ver.professionalplus). ?But even for the former, the functions mentioned were enough to make him feel crazy. The promotional material states that it can increase the comprehensive calculation efficiency of numerical simulation by more than 5 times. ??Lorenzo feels that even if this number is a bit watery, if it can be increased by 3-4 times, it is already ahead of the times. ? And since the Chinese can develop such incredible software, it doesnt seem surprising to design a brand new fighter jet with relatively complex aerodynamic calculations. ??A sudden ringing of the phone interrupted Lorenzo''s thoughts. is his student assistant. Professor, there are two gentlemen looking for you outside, saying that they are coming from Italy. They have not made an appointment, but you will definitely meet them. Uhwell, thats right. Lorenzo rubbed his forehead and replied: Let them in, one of them is an old friend of mine. A few minutes later, a tall, thin and expressionless man who was completely opposite to the other - a stocky man with a kind face walked in from the door one after another. Fernannio, long time no see! The former came over immediately after entering the door and gave Lorenzo a warm hug. Come on, Rory, who left me without saying goodbye last time and left me in the restaurant to pay? ??Lorenzo''s words are harsh, but judging from his expression, he must have a good relationship with him. Let me introduce you, this is... ??The man named Rory stepped aside and wanted to introduce another person following him. But he was interrupted before he finished speaking: Dont be kidding, of course I know Mr. Jean Todt, the former team leader of Peugeot and the national hero of France, but he may soon be ruined. Speaking, he took two steps forward and shook hands with the other party. In 1993, Jean Todt led the Peugeot team to win the top three in the 24 Hours of Le Mans. Although it is difficult to be called a household name, it is difficult for French people who pay a little attention to racing not to know this name. ?However, in the second year, because Peugeot rejected his proposal to enter F1, Todt switched to Ferrari, the old F1 team that was already declining. However, in the following years, although the team barely improved to a certain extent, it could still only hover between third and second. That''s why there is a saying that he is about to be ruined. So, in order to prevent me from being ruined, Mr. Byrne brought me to you, Professor Lorenzo. He said that you are one of the best people in the world in the field of computational fluid dynamics. Todd, who was teased, was not angry at all, but replied smoothly. After all, this is not the first year that the media has written similar headlines. "Come on, I''m not interested in your racing career. Now I just want to teach in school." ?Lorenzo waved his hand and refused almost without thinking. In fact, it was certainly not that he was not interested in racing, otherwise he would not have recognized the unattractive Todd at a glance, but he had already experienced a failed office struggle at Dassault and was already aware of the chaos within the Italian red team. After hearing about it, I wont go in person just because of some interest. After turning interest into work, interest often disappears. ??Besides, for him who has already been engaged in aircraft design, although there is speed and passion in the racing field, there is really not much. Fernanio, Mr. Todt has recruited the entire Benetton teams championship-winning team, which can completely isolate the influence from the Fiat Group headquarters. Now there is only one person left who is responsible for CFD calculations..." Rory Byrne wanted to give his old friend another piece of advice. ?However, Lorenzos attitude was decisive: I dont have that much energy to travel around the world with you anymore. He waved his hand, sat back in his office chair, and then happened to see the emails on the screen out of the corner of his eye. ?This made Lorenzo hesitate for a moment, and then changed the subject: But Rory, I can give you a piece of advice. "What?" You can try to learn this thing. ??Lorenzo, with a tone that was 70% serious and 30% joking, turned the monitor in the direction of Byrne beside him: If you believe my vision, I dare say that the efficiency of this thing is at least five years ahead of similar competing products. TORCHMultiphysicsIve never heard of it before? Yes, although this is just a promotional page, I took a look and the content inside is still very reliable. LaChineor is it software developed by a Chinese company? ??Byrne had an expression on his face that said, "Are you kidding me?" Yes, no joke, I am even considering bringing two doctors over to communicate with them. ?Hearing what Lorenzo said, Byrne turned his head and looked at Todd next to him. The latter nodded. Sodo you mind if one more person goes with you? (End of this chapter) Chapter 412 It can be regarded as a homecoming in fi Chapter 412 can be regarded as a homecoming in fine clothes (continue to be thousands of days) Chang Haonan returned to the capital with a group of invited guests on the second day after the J-10 successfully completed its first flight. Originally, Rongfei wanted to keep him for a few more days, but this time has entered August. As the impact of large-scale floods in the summer gradually subsided, and aero-engine R&D personnel from all over the country gradually gathered in Shengjing, Chang Haonan The two major projects in hand are also eagerly waiting to be advanced, and it is indeed difficult to stay in Chengdu any longer. And there is one more thing. ?Chang Jiayaos college entrance examination results are out. Considering that his next stop is likely to be Shengjing, which is not far from his hometown of Liucheng, he should take this opportunity to stop by and go home anyway. After leaving Xijiao Airport, Chang Haonan waited for a while in the parking area, and soon saw the car that came to pick him up A Toyota Crown. Not entirely new, but not much different. This was assigned to him by the Science and Technology Committee after the Torch Company was officially established. ??Its just that while the car was still going through the approval procedures, he went to Chengdu to participate in the first flight ceremony, so he used it for the first time today. The current "Automobile Equipment and Use Management Regulations" only provide preliminary regulations on the displacement and price of vehicles for cadres at all levels, and the specific implementation is not very optimistic. Therefore, the brands and models of official vehicles are still in a state of flourishing. among. ?For example, this Crown, although it bears the Toyota logo, could still barely enter the ranks of luxury cars in the late 1990s, and its internal facilities were also quite high-end. There are even many configurations that are no longer visible on Toyota more than 20 years later. Of course, it doesnt matter to Chang Haonan whether the car is good or bad. Even a million-dollar luxury car in the late 1990s will most likely not be as good as an ordinary mobility scooter in 2023 that costs more than 100,000 or 200,000 yuan. The main reason is that after he has this car (and driver), his daily work and travel will indeed be much more convenient. In fact, probably since April of the beginning of the year, when he returned from Haojing, Ding Gaoheng has verbally asked him not to take public transportation such as buses and subways unless absolutely necessary. As for taxis, they are absolutely prohibited. Because not only is taxi driving a high-risk profession these days, but taking a taxi is also dangerous. ?After some criminals rob a taxi, they will drive into the car with a "waste utilization" mentality and then attack the passengers. ?There are also taxi drivers who are carrying cases themselves. ?Although there are not many similar cases, Chang Haonan is too important now and cannot afford to lose it. As for driving by yourself In 1997, it is not 2017. How many college students would think of taking the driving license test after the college entrance examination? Besides, Chang Haonan was only 17 years old when he took the college entrance examination, so he was underage. In short, he still doesnt have a drivers license. So, in the months since then, Chang Haonans daily travels have relied on a Pajero temporarily allocated to him by the Science and Technology Commission. ??It''s just that although there are many cars at the Science and Technology Commission, the full-time drivers are only Ding Kemao, so sometimes, Chang Haonan has to contact Ding Gaoheng before he wants to travel. This is a problem for both people. After confirming that the license plate was the same as what he was notified yesterday, Chang Haonan opened the right rear door and got in. To his surprise, he actually recognized the driver. Are you...Zhu Yadan? ?The other party turned out to be one of the two guards who followed him to Jiangcheng the previous time. Yes, Chief, Director Ding seconded me from the Security Bureau. Obviously the other party is not just a full-time driver, but should also be responsible for certain security functions. I remember that the last time we went to Jiangcheng, there was also Hong Kun? Chang Haonan asked casually. ??Although Zhu Yadan can be said to be indistinguishable between male and female after putting on a suit and shirt, and if he goes out on the street twenty years later, he will probably make countless girls scream, it is still a bit inconvenient. ?She answered while skillfully starting the car: Chief, Director Hong is the ace instructor of our security bureau, so we cant let people go casually. Chang Haonan in the back seat suddenly realized. At present, various state-owned enterprises have not completely completed the group restructuring, so he, the general manager, actually has an administrative level. Its just a department level. It is normal for Hong Kun of the same rank to be temporarily responsible for the security work of the entire trip due to work reasons, but it is certainly impossible to be responsible for the daily security of him alone. Soon after the car started, Zhu Yadan asked again: Are we going back to your place? Chang Haonan looked at his watch: No, go directly to Nanyuan Airport, I have to catch the next flight. After explanations along the way, he finally understood the whole story - after all, his daily itinerary was concentrated on a few military industrial units that were already full of security work, as well as the central area of ????the capital where security was relatively reliable. In addition, about him The relevant information has been covered up a lot, so it is far from the level that requires 24-hour personal protection. All Zhu Yadan has to do is to take care of the necessary security work when he travels by car or on business trips. ?Furthermore, the superior sent Fang here because they had worked together before, and if Chang Haonan got married soon, it would be relatively convenient for her to start her work. ?This made the latter, who was somewhat potentially socially fearful, relieved. ??If you really give him a personal bodyguard, I feel uncomfortable thinking about it. ?At Chang Haonan''s level, ordinary travel is naturally not enough to get a special plane. It''s just that he happened to catch the twice-weekly flight from Beijing to Liucheng today, which saved him from the trouble of taking a train for a whole day. As for Liucheng, the local Office of Science, Technology and Industry for National Defense naturally sent people to pick him up. After all, Chang Haonan is already a recipient of the May 4th Youth Medal and a senior technician of the Aviation Industry Haojing Aircraft Industry Group even in public. It is not an exaggeration to go home to visit relatives and let the local government be responsible for the reception. ?Of course, the conditions here are much worse. There is only a 212 Jeep that looks very heavy. After getting off the car, Chang Haonan refused to be taken upstairs by the driver and the director of the local Science and Technology Office, and walked into the familiar family home carrying several large and small bags. Compared to that time a year ago, I no longer feel shy about being close to home. Just the pace speeded up a lot unconsciously. He had not told his family about his return before, so after knocking on the door, Chang Yuanchao, who was standing inside, looked shocked. "dad?" After being called by Chang Haonan, he remembered and quickly helped carry the luggage into the room, then turned around and shouted to the back room: Xiao Nan is back! First, Chang Jiayaos room door was slammed open, and Chang Jiayao, wearing only a large vest, rushed out with a face of surprise. Following that, Zhou Li pushed the door out of the master bedroom seemingly unhurriedly. Its just that she still holds the pen that Chang Haonan gave her half a year ago. Apparently I forgot to put it down. "You kid, why didn''t you say anything before you came back..." ?Zhou Li put the pen cap aside and took another travel bag from Chang Haonan: Ill give you a bowl of noodles, its probably too late to make anything else No need, Mom, I ate it on the plane. ?Chang Haonan waved his hand to indicate that he didnt need it: I suddenly had the opportunity to come back this time. I had to go on a business trip in Shengjing, so I had a few days to spare, so I thought of a way home to see Jia Yao and the others. You still have to eat something hot. Its just for one bite on the plane, not as a meal Zhou Li turned on the gas stove. Chang Haonan didn''t stop when he saw this scene. He just bent down to open the suitcase and handed a beautifully packaged hardwood box to Chang Jiayao. I brought it to you from Rongcheng, Shu brocade. When the latter first received it, I didnt think it was anything, but after unpacking it, I was immediately stunned by the clothes inside. In the 1990s, although cloth tickets had been canceled for almost ten years, it was one thing to be able to buy it, and another thing to afford it. Ordinary people had basically never seen any high-end materials. ?Although the conditions at Chang Haonans family are pretty good, they dont have any spare money to spend on clothing. So it is no exaggeration to say that the Shu brocade dress that Chang Haonan brought back to Chang Jiayao is the most gorgeous dress that the latter has seen in more than ten years. In fact, not to mention ordinary students in her small county, even in the capital, there are not many people who have actually worn this kind of material. ?After comparing herself a few times, Chang Jiayao still couldn''t hold back her love for beauty. She thanked Chang Haonan and went back to her room to change clothes. Didnt Jia Yaos outfit just now cost a lot of money? ?Chang Yuanchao doesn''t know much about clothes, but as long as he has eyes, it is not difficult to judge that the clothes are valuable. "It''s okay. Didn''t I win an award some time ago? I received a lot of bonuses that time, as well as the scientific research results I obtained before, and also a lot of project bonuses, which are not less than Jiayao''s price for a piece of clothing." At this time, Zhou Li also came over with a bowl of noodles and placed it on the table in front of him. ?Chang Haonan did not move his chopsticks immediately. ?He looked at his parents in front of him, hesitated for a moment, and then finally said: When I come back this time, Im going to buy a new house for my family. "ah?" "What?" Two voices shouted out almost at the same time. (End of this chapter) Chapter 413 Buy a house for your parents Chapter 413 Buying a House for Parents Come and see how it feels when I put it on? When Chang Jiayao couldn''t wait to tie the belt around her waist and came out of the bedroom again, and excitedly wanted to show off her figure to her family, she saw such a picture of three people staring at each other with big eyes. Weird scene. ?This made her confused for a moment, so she had to hold back the second half of the question. Brother? "dad?" "mom?" ?She tentatively called three people respectively. Ahem In the end, it was Chang Haonan who reacted first and spoke out what he had been thinking: The conditions of this Tongzilou are a bit poor after all. It doesnt even have a separate kitchen and toilet. My mother has been cooking on the balcony with a small gas stove. The hygiene and safety aspects are not good..." In fact, no matter how bad the conditions in this place are now, it is not that bad. After all, in the previous life, the family lived in such a building until the new century. At the end of the 1990s, Tongzilou was far from the level of urban legend it would become later. After all, it is a family home. The residents basically live in the same unit and the neighbors are all familiar with each other. Until about 2003, the employees of the original units moved into new residential areas on a large scale, so they rented them out at low prices to many idle people in society, and even premeditated criminals. As a result, the original Tongzi Building area gradually formed a similar complex. In areas like shantytowns or slums, the security situation has plummeted. This situation lasted for several years and then gradually disappeared with subsequent demolition and resettlement. So when Chang Haonan first proposed to buy a new house, the first reaction of Chang Yuanchao and Zhou Li was that it was unnecessary, both from a rational and emotional perspective. You havent been here for so many years. Besides, Jia Yao has gone to school in two months. Your mother and I probably cant cook a few times a week. Chang Yuanchao gently touched his already somewhat white temples and replied: This place is a bit old now, but the neighbors are all familiar with it. We may not be used to the sudden change of residence to a new place. "Yes, yes, your father and I will retire after working for more than ten years. By then, we may move to the place where Xin or Jiayao works and help you take care of your children. How can we buy something locally?" New house Zhou Lizhai also nodded in agreement and said: You should eat the noodles first, it will be cooked later. Chang Haonan picked up a piece of noodles with chopsticks and couldn''t help but smile bitterly. For people of their parents'' generation, it is indeed difficult to imagine what kind of earth-shaking changes China will see in the next ten years. Let alone more than ten years later, in five or six years, most of the residents in this tube building will have moved out. Neighborhood relations are indeed important, but in this county where the total population is less than one community in Beijing, there is no sense of distance no matter where you move. We are just moving, and we wont move too far away. Its not like we wont live locally anymore. We can still keep in touch with these old neighbors. He put a few pickles into a bowl, ate them in one bite with the noodles, and then continued to persuade: I just asked briefly on the way from the airport. There is a new community that has just been built two or three kilometers away. The transportation is very convenient, and it is even closer to your workplace. "Besides, even if Jia Yao and I go to school, we always have to go home during holidays and festivals. It''s really hard to live like this now, so putting a bed in the living room is not an option, right?" Chang Yuanchao obviously began to waver. Obviously, the effect of the second paragraph is quite obvious. As parents, its generally okay to make do with things on your own, but they will pay more attention to their childrens issues. "Um" But Zhou Li is still a little hesitant: "It will cost a lot of money. Xiaonan, you are already 22 this year. If you have a family in the past few years, why don''t you also have to buy a new house? That is still in the capital. Even if you have some money now, you should still keep it. She is indeed thinking long term. The problem is, its too long-term. ?In her previous life, she saved money for Chang Haonan''s wife until she retired, but it was no use... ?Although there is no guarantee that Chang Haonan will repeat the emotional experience of his previous life in this life, he is still considered to be of a small status now, and his parents should not need to worry about it anymore. "You don''t have to worry about things in the capital. We...well, the research institute where I am interning has already given me an apartment as a dormitory. It will be officially given to me after I graduate. Besides, we will also receive state subsidies and subsidies for doctoral studies. Project subsidy, there will definitely be no shortage of money..." ?Chang Haonans brain was spinning rapidly, and he came up with clever names for his income. At present, his largest source of recurring income is undoubtedly the salary from Torch Company. The rest are subsidies and bonuses in some projects. Mainly horizontal. For large projects such as Turbofan 10 and Project 10, the restrictions on the use of funds are often quite strict. In addition, the larger the scale of the project, the more people will be involved in it. As for personnel subsidies, this is definitely a problem. If you have a share, even if there is a graded distribution system, the gap will not be too obvious, so what finally falls into the hands of Chang Haonan can only be regarded as drizzle. But Chang Haonan is not ready to tell his family about the Torch Company just yet. At least I am not planning to tell Chang Yuanchao and Zhou Li. Judging from the experience of the previous life, neither of these two people are capable of hiding things in their hearts. Although they will not deliberately publicize it after knowing it, it may be difficult to keep their mouths shut for a long time. On the contrary, Chang Jiayao, although she seems careless and heartless now, is actually quite thoughtful. In recent years, there have been major layoffs. If people around me really knew about this, just think about it, how many relatives, friends and colleagues would come to me to ask for help in arranging jobs. Chang Haonan''s plan for Torch Company was originally to be a small but sophisticated core technology enterprise, so it was naturally impossible for him to take the lead and stuff some idle people into it. But it is easy for him to refuse, but it is difficult for Chang Yuanchao and Zhou Li to refuse. Maybe it will destroy the social circle of the two of them. So it is better to contain the problem at the source. How much subsidy can you get for studying Chang Yuanchao was a little disapproving at first, but then he suddenly realized: No, you said you want to buy a house in our county. How much money do you have now? ?Chang Haonan hesitated for a moment and showed three fingers. Three thousand... Then if we add some more money we have saved over the years, it might be about the same..." Obviously Lao Chang has not realized the seriousness of the matter. Dad, if I only had three thousand yuan, how could I possibly mention buying a house to you Chang Haonans head was full of black lines, interrupting Chang Yuanchaos progress in settling accounts. ??He did not dare to say that the handmade Sichuan brocade dress that Chang Jiayao is currently wearing would probably cost more than half of that amount if it were commercially available. Thirtythirty thousand? After a second of silence, Zhou Li asked tentatively with a trembling voice. In 1997, in first-tier cities, housing prices in good locations ranged from a few thousand to tens of thousands. In places like Beijing, Shanghai or Pengcheng, 30,000 yuan was not a small amount, but it was still high. Definitely not a huge sum of money. ?However, in an inconspicuous small northeastern county, the house price in the central area is about 300 yuan per square meter. Even for the largest apartment, a room costs just over 30,000 yuan. ?It is not impossible to buy a house for more than 10,000 yuan if the location or area is slightly downgraded. ?At this time, there is no overwhelming mobile network and self-media to tell you what the life of wealthy people in big cities is like. For the couple who have lived locally all their lives, this county, or at most Liucheng City, is basically their entire world. ?The incomes of Chang Yuanchao and Zhou Li are not low in the local area. They add up to several hundred yuan per month. Thirty thousand yuan is not enough to break the upper limit of imagination. But they were quite sure that just a year ago, their son still had to take care of their living expenses. In other words, Chang Haonan saved the money in less than a year. This is a bit scary. Uhright. Looking at his mother''s reaction, Chang Haonan didn''t dare to say that he actually had almost 300,000 yuan in hand. But Chang Jiayao, who was next to him, saw some clues from Chang Haonan''s expression. ??And she can also feel that the clothes on her body are definitely worth a lot of money. Not to mention anything else, even though there was no way to tailor the dress and I just asked about the basic measurements such as height and measurements over the phone, this dress still fit the figure almost perfectly. ?She even felt that after wearing this set of clothes, it would be a sin for her to be a little fatter. In short, after a comprehensive judgment, I am afraid that these three fingers mean more than thirty thousand. "Mom, since my brother is not short of money, let him buy it. Didn''t you also say this winter that the heating pipes in this old house are aging and the effect is getting worse? How can it be better if we move to a new house? a little." ?So she said and walked to Zhou Li''s side to help persuade her. You say it lightly, but its not your money. The latter raised his hand and knocked Chang Jiayao on the head: Our cheaper building costs about ten thousand yuan, which is enough for your father and I to go without food or water for three to four years ?Even so, she did not refuse again. At the end of the day, what parent really doesnt want things bought for their children. Its nothing more than worrying about money. There will be more later (End of this chapter) Chapter 414 Chief Designer Chang takes office Chapter 414 Chief Designer Chang takes office Chang Haonan couldn''t stay at home for too long this time, so without further ado, he took his family to the community he had seen on the road early the next morning. The reason why it is directly determined to be here is also the experience of the previous life. When this community was built, pre-sale of commercial housing and shared areas had not yet been implemented, so the quality was actually better than that of off-plan communities that started construction in the past two years. And as long as you like the existing house, you can trade it on the spot. ??If everything goes well, he can also help move the house. At first, Chang Yuanchao and Zhou Li set their sights on a small apartment of less than 70 square meters. Mainly because it is relatively cheap, only about 20,000. But it still has two bedrooms and one living room. In the end, I couldn''t resist the persuasion of Chang Haonan and Chang Jiayao, so I changed to a slightly larger one. At least one more bedroom. Otherwise, the family had two bedrooms and one living room before moving, and it still has two bedrooms and one living room after moving. Wouldnt this move be in vain? However, after all, the family had lived in the old Tongzi Building for twenty years, and the piles of all kinds of debris were so vast that Chang Haonan didn''t have time to move everything. He only had time to move some necessities, and it was time to move them over again. Time to leave. Shengjing contacted him through the local Science and Industry Office and said that the R&D personnel required for the Turbofan 10 project have basically arrived. More importantly, the official appointment of Chang Haonan from his superiors has also been issued. ?Thus, three days later, Chang Haonan appeared in No. 606 again after about half a year. It''s just that this time, his status is completely different. ?Although Chang Haonan also played an important role in the Turbojet 14, he was still considered a non-staff member of the project and participated in the core machine improvement work as a consultant. Although in the end his advisory opinions were accepted and a top-level turbojet engine such as the Turbojet 14 was finally born, at the official record level, Chang Haonan''s name can still only appear on the third page of "Participation" R&D personnel". The people who received Chang Haonan in Institute 606 were Yan Zhongcheng, an old acquaintance, and Hai Yide, the director of Institute 606, who was with him. Mr. Yan, director of the sea. After getting off the car, Chang Haonan immediately stepped forward and shook hands with the two of them. Haiyide served as deputy administrative commander and leader of the major technical decision-making leadership group in the Kunlun engine project. In fact, he was basically equivalent to the chief engineer. However, the Kunlun project started too early, and the chief engineer and general manager had not been determined at that time. The system of division, and it was unrealistic to airborne the chief engineer when the project was already halfway through, so he could only be given this title. However, in the development process of Kunlun engine, Yan Zhongcheng was undoubtedly the one who occupied the real dominant position. Therefore, Chang Haonan did not have much contact with Director Haiyide before, and only met at a few meetings. . Mr. Chang, now we are considered colleagues. Calling me Director Hai, doesnt it seem a bit too unfamiliar? Chang Haonan didn''t react much when he heard this statement. ?Due to the complexity of his identity, it is difficult to say whether his file is listed in Beijing Hang University or ZY Enterprise Working Committee, but it should not be in 606 Institute. It seems a bit far-fetched to have to say what his colleagues said. "The superiors have decided to appoint Mr. Hai as the chief engineer and administrative person in charge of the Taihang engine project, and you as the chief designer and technical person in charge of the Taihang engine project. So, for at least the next few years, the two of you will Both young and old need to be partners. Yan Zhongcheng explained with a smile beside him. "I see." Chang Haonan felt something in his heart: ??The position of chief designer is relatively simple. Although I am very young, I have already demonstrated high enough abilities, so it is not unreasonable to hold the position as an exception. But the chief engineer involves more administrative functions. More importantly, if something goes wrong with the project, the chief engineer needs to take the overall responsibility (take the blame), so it must be someone with a certain administrative level and experience and qualifications. Just take responsibility. As the director of the 606 Institute (at the department and bureau level), Hai Yide, who has already undertaken similar tasks in the Kunlun engine project, is naturally the most suitable person. Judging from this, the other party may have held the same position in his previous life, but the chief engineer and chief engineer of Turbofan 10 changed at least five or six times in that timeline. He must not be able to remember each of them. name. "Then I ask Mr. Hai to take more care of me at work. After all, I am still young and inexperienced in many things. If I do something inappropriate, I still need Mr. Hai''s guidance. Also, you Just call me by my name." ? Judging from the limited previous contacts, Hai Yide is not a leader who likes to interfere randomly, so Chang Haonan also keeps his attitude low. Comrade Haonan, be humble, be humble, dont worry, I am mainly responsible for providing you with all the support you need, and I will never interfere in technical issues at will! In fact, Hai Yide is different from Liang Zhuoping or Luo Hairong. He is also a technician in the field of aviation development, but he really did not come up through the administrative route. In the early stages of the development of Kunlun engine models, he was responsible for overcoming many key technologies. However, on the one hand, after taking up the position of director, his energy was inevitably distracted by administrative work. On the other hand, after the improvement work of the Turbojet 14 last year, he has also realized that Chang Haonan''s technical capabilities are indeed beyond his own. too much. More importantly, Haiyide knew in his heart that as the administrative person in charge, as long as the Turbofan 10 project could be successfully finalized, his contribution would be indispensable. There was no need to argue with such a rising star over some trivial matter of power distribution. Go against the rising star. What a loss. ?The appointment document of Chang Haonans chief designer was directly signed by the names of two big leaders. To say someone elses background is great is a rhetorical technique, but to say someone elses background is great is just a normal description. ??If two people really fight, you can think of who will be kicked out in the end with your toes. By the way, Xiao Chang, there is one more thing. After Chang Haonan and Hai Yide completed their usual polite exchanges, Yan Zhongcheng put one hand on the table and suddenly interjected: After getting the new software from your Torch Company, my turbojet 14 aeroderivative project has reached its most critical stage, and I need someone from your Taihang side to help. "who?" Chang Haonan felt a little strange when he first heard this request, but after all, the relationship between the two is quite good, and now the Taihang project has a big business, so there is no one left behind. Zhang En and Mr. Zhang, how about asking him to come to my place to do the air traffic control with me? Yan Zhongcheng tapped his hand rhythmically on the table, seemingly casually naming the person he wanted. "sure." ?Chang Haonan was stunned for a moment, and then immediately understood what the other party meant: You have to worry about it... Zhang Enhe has been the chief designer of the Taihang Project in the past few years. He is 58 years old this year and is actually about to retire. Yan Zhongcheng sent such a person over, naturally not because he really lacked experienced manpower, but to eliminate possible troubles for Chang Haonan. Even though the other party was very upright in the matter of replacing the chief engineer, it would always seem very strange if the former chief engineer continued to stay in the project team. Even if Zhang Enhe is not awkward, there is no guarantee that Chang Haonan will not be. ??It is even more unnecessary if there is any unpleasantness due to poor communication. So it is better to nip the risk in the bud and let Mr. Zhang directly go to Aircraft to take care of his retirement. Anyway, as the chief engineer of the Turbofan 10 for nearly ten years, his name has been difficult to separate from this model. After confirming this last thing, Hayide excitedly waved his fist in the air: "Comrade Haonan, now that all the personnel needed for research and development work have arrived, we will hold a technical meeting for the key members of the turbofan 10 project team tomorrow morning, no, this afternoon, and inform everyone of your official appointment! " (End of this chapter) Chapter 415 Aviation development, starting from the core aircraft Chapter 415 Aviation development, starting from the core machine ?While walking and talking, the three of them had already arrived at the office of Director Haiyide. No, no, no, Mr. Hai, there is no need to be in such a hurry. Looking at Hai Yide who was almost impatient, Chang Haonan stopped his plan to hold the meeting in advance: "After all, it is a national collaboration. The technical meeting of all key members is too large. We can make more preparations. First, let the comrades from other units familiarize themselves with the environment and working mode of 606. This will also make it easier to carry out follow-up work and hone the The sword never cuts wood." After hearing this, Haiyide immediately stopped turning around, and then his eyes lit up: Mr. Changs intention is... to let comrades from other brother units also..." And he could hear the implication of Chang Haonan''s words. ?That is, the other party is prepared to take this opportunity to re-integrate the entire Chinese aviation power industry in a bottom-up manner. The first step is naturally some details. Chang Haonan nodded: There is no way. Since we want to participate in the same project, we must unify the working methods first. Since the Taihang project is led by the 606 Institute and the 410 Factory, the relevant practices must naturally be implemented in accordance with our existing methods. The industry where 606 is located is generally referred to as the National Development and Research Institute for short. There is no need to add the word Shengjing at all, because in the earliest aviation industry planning, this place was actually the only aero-engine research institute in the country. ?Although a series of events such as the third-line project later caused aerospace development plants to bloom everywhere, the status of 606 has never been shaken. ?However, we have not been shaken. Over the past thirty or forty years, we have also had quite a huge difference in some specific business methods - ??Although China''s aviation industry has gradually begun to form its own set of standardization systems with the release and implementation of a series of new national military standard documents, standards are only the most basic thing after all. Under the same set of national standards, the habits and styles formed by design and manufacturing units that have worked independently for a long time will still be very different. The most typical example is Sukhoi and MiG, both of the Soviet (Russian) design bureaus. At the beginning of Project 11, Factory 601 and Factory 112, which were already accustomed to MiG aircraft, found that when faced with the design and production data of the Su-27, they had differences in drawing numbers, annotations, and the abbreviations of some professional terms. The abbreviations are all different, and even the old comrades who were re-employed took a while to get used to it again. Fortunately, today''s Sukhoi''s status in the cooperation is not that high, so the completeness and accuracy of the technical documents provided are much improved compared to the previous life, which did not delay the project progress too much. Across the ocean, Boeing, which has just successfully acquired McDonnell Douglas, is facing similar troubles. At least in the aviation industry, China is not a country with deep financial resources and strong technological foundations like the United States and the Soviet Union, so it still has to prioritize concentrating its efforts, unifying work methods, and reducing internal friction. Okay, then I will ask the comrades in the institute to familiarize them with the situation in the past two days. As the director of Institute 606, Haiyide was naturally very excited to hear this kind of thing. Although this would not bring him any direct benefits, at least it would definitely make him look good. Theres no rush for this, theres one more thing. ?Chang Haonan quickly stopped the other party. Firstly, such a large project requires half a day, and secondly, he wanted to determine first what stage the turbofan 10 in 1997 was in: It has been more than ten years since the establishment of the Turbofan 10 project. In addition to pre-project research, there should also be some basic design information. Before officially starting work, I want to see what the current situation is. Since you want to grasp the overall design plan, you must have a good idea. In the last life, because the entire project was pushed back many times, the records of the research and development work of the Turbofan 10, especially the research and development work before 2005, were quite confusing. Chang Haonan is not an expert who specializes in the history of the development of the aviation industry. As a result, Even if he reopened it, he still couldn''t find any useful information from his memory. Having no choice but to look up first-hand information. Is this... Hearing Chang Haonan''s request, Hai Yide hesitated. ?The Taihang project is indeed quite special. It has been in a state of being approved but not yet approved for a long time. Logically speaking, pre-research work should be completed before the formal project is established, but because there is almost no technical foundation, 80% of the time for this already-established project is actually spent on pre-research. In the remaining 20% ??of the time, I did a few hands-on designs, but the results were naturally not very optimistic. ?Hayide has been responsible for the management of Kunlun engines before, so it is normal for him to be unfamiliar with this aspect. I have to call Comrade Liu Yongquan over. He is the deputy chief designer of the Taihang project. He has presided over the completion of several preliminary design plans so far. Haiyide said and picked up the phone from the table next to him. After a brief communication, he put down the receiver and looked at Chang Haonan again: Lets go to the conference room next to it. Its still not very convenient here. "I won''t go with you. There are still a lot of things to do in the aeroderivative gas turbine project. The 701 Institute has been a little anxious during this period. It is said that the navy suddenly put forward some requirements for the anti-submarine performance of the frigate, so Now the gas turbine solution has a high probability of winning, but we need to provide a prototype with full performance as soon as possible. Yan Zhongcheng said as he put on the coat he had just taken off and prepared to leave. Mr. Yan, dont you want to participate in the Taihang project? ?Hayide asked half-jokingly while sorting the files on the desktop. "If it weren''t for Comrade Xiao Chang, I might really be able to use my remaining energy." Yan Zhongcheng, who had already walked to the door, waved his hand: Now that we have such a capable next generation, it just so happens that my old bones are a bit overwhelmed, so Id better work on some projects that are not so intense... After saying that, he quickly disappeared around the corner outside the door. "Alas...that''s what Lao Yan said, but their gas turbine design room doesn''t keep the lights on all day and all night..." Hai Yide shook his head, and then handed an envelope and two separate pieces of paper to Chang Haonan: "Your official appointment document is only the original but we have to keep it in our office. I made an extra copy for you. Take it as a souvenir." I estimate that in the foreseeable future, there will be no model chief engineer younger than you Soon, Liu Yongquan and several other key members responsible for subsystem design in the Taihang engine project came to the adjacent conference room. Compared with the paper files of the previous Turbojet 14 and J-8C that counted boxes, the Turbofan 10 is much lighter in appearance due to its slow progress and the fact that a lot of technical information has been digitized. Liu Yongquan quickly opened the laptop he carried with him and spent more than ten minutes opening a series of project files. They are all design drawings. But basically all are cross-sectional drawings drawn using CAD. Only the front fan and the rearmost nozzle part have completed 3D modeling, but they are still relatively rough. After all, the entire Taihang project team did not have many manpower at all before, which is normal. Im not afraid of your ridicule, Mr. Chang. We have indeed produced several preliminary design plans before, but the degree of completion was relatively poor. This is the one we started recently and has the best progress. Liu Yongquan said as he pushed the computer in front of Chang Haonan with some embarrassment: The earlier ones, we couldnt design them ourselves later on, they were completely useless. This was achieved after we stole some things from you before and learned from many mature foreign models. It doesnt matter, Im just taking a look. Chang Haonan is not surprised by this situation. After all, even the Turbojet 14 had many traces of patchwork before his overhaul, let alone the Turbofan 10. And he could see what the prototype of this version of the design was almost at a glance. 3-stage fan, 9-stage compressor, 1-stage high-pressure turbine, two-stage low-pressure turbine Is this derived from the GE9 core engine? When he saw this design, Chang Haonan already basically understood the current stage of the turbofan 10 Although it adopts a more advanced design in some details due to the butterfly effect it brings, this version is generally a replica of the F110 engine. It is one of the two power sources of F15 and F16. Liu Yongquan and several others looked at each other: Mr. Changs vision is really great. We borrowed it from the CFM56-3 engine. They never thought of hiding the overall technical source when designing, but Chang Haonan could accurately judge it after just looking at it for a few seconds, which was really not easy. Hai Yide originally thought that Chang Haonan would be disappointed when he saw this plan, but after the latter stared at the computer screen for about ten minutes, he nodded with satisfaction: Its pretty good to start from CFM56 and design it to this level. This is not Chang Haonan comforting several other people. China does not have a ready-made F110 engine for reference. You must know that the CFM56 is actually one of the engines of the Boeing 737. It is a large bypass ratio turbofan engine. The overall design is quite different from the small bypass ratio turbofan used in fighter jets. So Liu Yongquan and others actually derived the GE9 core machine from the CFM56, and based on the latter, they came up with a design that is extremely close to the F110. Its really good. "but." After giving the high praise, Chang Haonan shook his head and then changed the topic: The GE9 core machine and the F110 engine are indeed good things, but they are not suitable for our actual situation in China. At least its not suitable for the current timeline, the actual situation after my rebirth - he then added in his mind. ?In the last generation, the final version of the Turbofan 10 that finally achieved final installation was derived from this design plan, which is the same parent as the F110. ? Its just that as the changes that Chang Haonan brought to the world increased, and his own ability level (including system level, of course) became higher and higher, it was no longer possible to directly copy the experience of his previous life in many things. "this" Liu Yongquan, who was a little excited just now, suddenly became nervous again: So this plan Of course its not completely without value. Some details are noteworthy and can even be used. ?Chang Haonan stretched out his arms and pulled out a stack of paper from the table next to Hai Yide: But in general, most of the content must be overturned and restarted. At least, we must create a core machine that is truly suitable for us. (End of this chapter) Chapter 416 Choice, 10 technical routes for turbofans Chapter 416: Choice, 10 technical routes for turbofans The core engine of the GE9 is good in every aspect, but the total pressure ratio is too high, and the low aspect ratio compressor blades are a completely new topic for us in both design and manufacturing. Now that we have the successful experience of the Turbojet 14 , then there is absolutely no need to start a new business in a place like this..." Chang Haonan quickly wrote down a few numbers on the paper while introducing: "Currently, among the mainstream third-generation high-thrust turbofan engines in the world, the pressure ratios of the F100 and AL31F are in the range of 24-25, while the pressure ratio of the F110 is outstanding, and should be close to 31. I think your design even We have also used a more efficient curved blade design for the compressor. I am afraid that the pressure ratio will be 32-33, so for the two installation targets of our turbofan 10, the suitability will be very poor..." After all, the aviation engine cannot always stay on the ground test bench, but must be installed on the aircraft and actually take off to fly. So even if the aerospace power system becomes independent in the future and the engine project no longer exists as a supporting component of the aircraft project, it is impossible to design the aerospace engine without considering the actual conditions of the aircraft to be installed. ?Having a high pressure ratio is indeed a good thing, but it is definitely not a blind idea that higher is better. For engines with excessive high pressure ratios, especially turbofan engines, after exceeding the speed of sound, the power consumption of the compressor will increase rapidly, causing the isentropic compression line to shift to the right, the compressor efficiency will decrease, and the cycle work will decrease. ?Although the total pressure ratio on paper is still very high, the actual available effective pressure ratio is lower. In terms of actual performance, the engine is like a train at low speeds, and becomes a worm at high speeds. F110 and F404/414 both have this problem. How big is the gap? These two engines, which are obviously more advanced in technology, not only have a thrust curve inferior to that of the AL31F and RD93 at supersonic speeds, but their fuel consumption performance is also inferior to the latter two. This is a problem limited by basic physical principles. Unless a variable cycle engine is developed, it is impossible to achieve a balance of performance under various working conditions from the root. The F119 engine on the F22 chose a design completely opposite to that of the F110 for supersonic performance. The result is that it can cruise at supersonic speeds without using afterburner, but the fuel consumption in military push mode is extremely high, resulting in a huge amount of fuel in the entire aircraft. Instead, it turned into a short leg. Its not that Puhuis designers are incompetent. Its just a choice. The ATF project was born at the height of the Cold War. The combat scenario at that time was to conduct a short, high-intensity battle over Europe, and then either be shot down or return, which did not require a long voyage. ?? Its just that the plan couldnt keep up with the changes. When the F22 entered service in 2005, it was found that it had to go to the vast Pacific region to use its waste heat. As a result, the performance was out of touch with the needs. ?Of course, although it is impossible to fundamentally solve the problem, there are ways to improve it - Just redesign the aircraft with an adjustable inlet that has better matching and a wider range of boost capacity adjustment. The later new model F15 adopted this idea. As for F16 and F18... What a joke, if a medium-sized machine wants supersonic performance, just stay put. The current situation is that the overall design of the J-11 is that of the Su-27. The basic design of the fuselage + air intake already has an incredible boost capability. It is not easy to lower it. The J-10 has simply decided to use a non-adjustable DSI inlet. It is also impossible to lose the big for the small and fix the inlet state in a low-efficiency and low-boost-ratio state. Therefore, although the turbofan 10 can be freely used at the specific technical level, in terms of performance and style, it still has to follow the F100/AL31F route, and it is appropriate to set the boost ratio around 25. The overall design of aeroengine is an extremely complex system engineering, which has been reflected before the real design work begins. "oh" ?At the end of Chang Haonan''s explanation, Hai Yide and Liu Yongquan looked at each other with big eyes and small eyes. ? We are all professional and technical personnel. Although we were inexperienced and did not think of this level before, now that others have said it, we can still understand it. But Mr. Chang, if the boost ratio is limited, the overall performance of the engine at subsonic speeds, especially the fuel consumption and thrust-to-weight ratio, will definitely be affected..." The main performance optimization range of third-generation fighter jets is definitely still in the range from high subsonic speed to transonic speed. Regardless of F100, AL31F or RD93, they all sacrificed a certain degree of subsonic performance, especially the RD93. The huge fuel consumption at low speed (still dual engines) and the small internal oil directly brought the MiG 29 to the airport. The name of the defender. For the Chinese Air Force, which is expected to conduct high-intensity operations far away from the airport, this is indeed a critical issue. Yes, Mr. Chang, the J-11 has 9 tons of internal fuel. I dont care about the fuel consumption, but I look at the body of the J-10, and the internal fuel capacity should not be very optimistic..." Hairyide next to him also expressed the same concerns. In fact, this is one of the main reasons why 611 directly tied the two inner pylons to the auxiliary fuel tank when it first designed the J-10. AL31FN is still AL31F after all. It just changed some minor details such as the position of the accessory box. The engine is still the same engine. ?After being installed on the J-10, the range without auxiliary fuel tanks is really not impressive. But Chang Haonan shook his head decisively: The problem of fuel consumption can be solved by increasing the temperature in front of the turbine by 50-100C. This is a rather simple and crude method, but it is also the most effective. Chang Haonan adopted the same approach on the Turbojet 14 to ensure that the performance of the J-8C at different altitudes and speeds is balanced. Mr. Chang, the temperature in front of the turbine that we are promoting in the third generation is now set at around 1200C. This is already a high threshold for our material science level. If we increase it further..." As an aviation engine designer, Liu Yongquan has naturally considered these issues. But looking at Chang Haonan who didnt even raise his pen next to him, and then thinking about what happened on the Turbojet 14, it doesnt seem that incredible. ?However, after hesitating for a while, he still said: If we add more, Im worried that the risk level and progress of the entire project will be out of control. ? 1200, which is already the mainstream level of the international third-generation turbofan engine. It is indeed difficult to produce turbine discs and turbine blades with heat-resistant levels that exceed those of the United States in a short period of time. In something like materials science, there are very few opportunities for opportunism. China has now been able to produce nickel-based high-temperature alloy raw materials with similar performance to ReneN5, but it still has the same old problem. If you want to make something, just a piece of raw material is of no use. Each material requires subsequent processing. Processing and a series of supporting research, these things are also quite time-consuming and resource-consuming. ??If you abandon the second-generation alloy materials that currently have certain supporting research results and industrial practical experience, and jump directly to the third-generation, the risks involved will be very difficult to determine. Of course its too radical to directly change materials ?After directly using system points to smash TORCH Multiphysics, Chang Haonan is currently on the verge of "bankruptcy" and does not have so many points to use to comprehensively improve the level of the entire field of materials science. ?This method of improvement is also too rigid and does not conform to the logic Chang Haonan set at the beginning. To take a step back, even if there is a system to help and everything goes smoothly in the middle, it will take at least several years for him to solve the numerous problems in the middle by himself. Chang Haonans plan is to try his best to give at least the prototype aircraft equipped with the turbofan 10 a chance to participate in the 50th anniversary National Day military parade in more than two years. It will definitely be too late to wait for the materials. "So I plan to use a new active cooling solution on the turbine structure. The current film hole cooling still has great potential. Without changing the base material, it is not a big problem to increase the temperature in front of the vortex by 50-100C. " After finishing speaking, he ignored the stunned people beside him and took the drawing with a simple schematic diagram in front of him again: As for the push-to-weight ratio issue you just mentioned, we will directly abandon the 3-9-1-2 structure, or this structure. "ah?" ??The other people in the conference room just felt that their brains were on the verge of death due to receiving too much information in a short period of time: If we dont use this structure...should we use a centrifugal compressor? The turbine compressor of a gas turbine can be simply divided into centrifugal type and axial flow type based on the principle. Generally speaking, except for the early stages of chaos, most turbojet/turbofan engines have uniformly used the axial flow type. Only some turboprop/turboshaft engines use centrifugal design. Of course not Chang Haonan was a little helpless: "What I mean is to use a higher-efficiency single-stage load to reduce the number of compressor stages, compress the three-stage fan into a 1-stage or 2-stage fan, and the 9-stage high-pressure compressor into a 6-stage or 7-stage, considering The entire compression system accounts for about 60% of the weight of an engine. If the weight of this part can be reduced by 20%, the thrust-to-weight ratio of the entire engine can be increased by at least 10%. " Do you still remember the ultra-high load adsorption type curved swept combined leading edge edge strip blade that I took out as a calculation example during the last meeting? ?Hai Yide didnt go to the meeting last time, but Liu Yongquan did. Also listened very carefully. So he was the first to react from his confusion and nodded: Remember, I also took notes He said as he took out a notebook from the bag he carried with him and opened it to one of the pages. From the slightly worn traces, it can be seen that he probably read a lot during this time. "That''s good." ?Chang Haonan gently tapped the title part of the notebook with his finger: This thing is the core technology of our compressor design. The leaf shape design you have learned before, whether it is end bending or end sweeping, end wall shape, or edge strips, is still a means of passively controlling flow separation. The reason why I mentioned the adsorption vane is to use active control methods to further increase the single-stage pressure ratio, so that each stage can exert the compression effect of one and a half to two stages in the past! (End of this chapter) Chapter 417 Construction officially begins! Chapter 417 officially begins! In fact, as early as 1904, the German mechanic Ludwig Prandtl (not the Planck who studied quantum mechanics, although both men were German and lived roughly in the same era) was working on the flow around a cylinder. In layer experiments, it was found that air flow separation can be delayed by actively pumping the adsorbent surface layer. Its just that until now, no one has seriously considered applying this principle to the field of compressor design. Including some cutting-edge laboratories at MIT, they have only proposed related possibilities, and have successively begun to conduct some research on mechanisms and feasibility. So we cant blame Liu Yongquan and others for not thinking about this before. Chang Haonan introduced this ultra-high-load adsorption-type curved-sweep combined leading edge edge strip blade in the form of a "calculation example" before, without mentioning the specific application scenarios and basic principles of this thing. And to be honest, for most of the audience sitting below, it was not easy to just understand the numerical calculation method in the blade design process. Those who can produce as little as half a notebook like Liu Yongquan are already among the best. Its normal to not have time to think too much. Boundary layer suction can remove the high-entropy and low-energy fluid in the compressor. The lower the entropy value of the initial fluid before compression, the more work it takes to increase the same pressure of the same mass of fluid in a multi-stage compressor. less, the compression efficiency will also increase..." "This is the formula of Karman''s momentum equation. We don''t even need the assistance of a computer. By deriving it from a theoretical level, we can find that when the boundary layer is well adhered to the suction, the decrease in the momentum thickness at a certain position downstream and the suction The reduction is the same at the location; while suction occurs when the boundary layer is close to separation, the reduction in momentum thickness at a downstream location is magnified by an exponential factor compared to the reduction at the suction location..." ??The basic principles of boundary layer suction did not break through the content of ordinary undergraduate physics. Even if it involves engineering applications, everyone quickly understood what needs to be done next after Chang Haonans explanation: So we must find the specific location where flow separation occurs in the boundary layer, so that we can...improve the efficiency of the single-stage compressor as much as possible? Thats right. Chang Haonan nodded happily: "This technology currently has two application directions. First, as I just said, high tangential speed adsorption compressors can be used in military small bypass ratio turbofan engines, using one-stage adsorption fans to replace the original multi-stage fans. This reduces the weight of the fan and achieves a higher thrust-to-weight ratio. The second is the low tangential speed adsorption compressor, which can be applied to turbofan engines with large bypass ratios to reduce the tip tangential speed and rotational speed under the same pressure ratio, improving the vibration characteristics and acoustic performance of the engine. Of course, , this should be something in the future for us..." So before carrying out the overall design, these technical problems must be solved first ?Hide next to him has opened a notebook and started taking notes. ?Although he is not the technical person in charge of the Taihang project, as the chief engineer, he certainly cannot understand the entire research and development process. ? What''s more, Haiyide himself is also from a technical background. Even though he has been away from the forefront for a few years, his most basic sensitivity is still there - With Chang Haonan''s current rocket-like progress, after completing the Turbofan 10 project, the other party will at least invest in the research and development of the next generation aeroengine, and may even go directly to a more basic and larger-scale project. It is impossible to waste time on personally designing other aircraft engines of the same generation derived from the third-generation core aircraft. At most provide some technical guidance. ?The other party has just made it clear that the technology acquired during the development of Turbofan 10 also has application value in a wider range. Haiyide still has a relatively clear understanding of himself. He knows that his ability to make some achievements in the field of aviation power in this life is already the limit, so after the turbofan 10 project is completed, they will participate in this batch. Its time for people who have passed Turbofan 10 to show their talents. As for now Listen well and learn well. This is just one of the key technical issues. ?Chang Haonan put down the pen in his hand and said: "Our foundation in aero-engine development is indeed too thin. There is no ready-made experience and data to follow for many things. We can only start from scratch. For example, the new active cooling technology I just mentioned also requires the design team responsible for the turbine part. I am specifically responsible for research, as well as the casing part... Fortunately, there are relatively few problems with the combustion chamber and afterburner, and many technologies applied to the turbojet 14 can be directly used. "This is just the design level. The 410 factory is responsible for the production and manufacturing at the same time. Especially the hot-end components, single crystal turbine blades, and the main bearings of the entire engine. The working conditions are very harsh, and the manufacturing level determines How many cycles can our engine be used? Although the life requirements can be relaxed on the premise of improving performance, the reliability cannot be too low. After all, there are single-engine aircraft to use. This needs to be coordinated by Mr. Hai. I may We will provide some help when necessary, but the main focus must still be on basic research... ? ? ? Although it was only a small meeting with less than ten people, it still lasted for an entire afternoon. In fact, Chang Haonan is equivalent to dismantling and distributing the work involved in the entire project. "The entire project team is expected to be initially divided into nine technical directions: overall structural design, compressor, combustion chamber, turbine, fan, casing, other auxiliary components, cold processing technology and hot processing technology to carry out work at the same time. There are also nine technical directions below each direction. They should be divided into different groups according to specific topics. As for the selection of key members in each direction..." ?Chang Haonan stopped the pen in his hand and looked at Hai Yide next to him: Mr. Hai? ?After all, the other party is the chief engineer responsible for administrative leadership. In terms of personnel allocation, it is not easy for him to directly override others. At least be polite. ? What''s more, Chang Haonan himself is not an employee of the 606 Institute after all, and his previous contact with this place was limited to the Turbojet 14 project. Therefore, in terms of understanding of the situation, he is definitely not comparable to Haiyide, who was born and raised in Haiyide. The latter nodded immediately: I will allocate the key personnel in each direction according to their previous work experience, especially the experience in participating in the Kunlun project. As for the person in charge of each topic..." Having said this, Haiyide lowered his head and thought for a moment. ?The impact in this area is so great that even he cannot come up with a list immediately on the spot, not to mention that it also involves colleagues from other factories. Although Institute 606 is responsible for the overall design, we are all brothers in the unit after all. If you really dont save any face, thats not good. "As for the person in charge, I will first understand the specific situation in the next few days and make a list of people with more relevant experience. Why don''t we decide the specific candidates at that time?" ?Hai Yide was not being polite before, he had a clear understanding of his position. Taking into account the actual situation of the Taihang Project, no matter who becomes the chief engineer, he will mainly be responsible for providing administrative support. And taking the blame. So he still left the decision-making power of key positions to Chang Haonan. Thats fine. The complete task distribution plan will be finalized at the general meeting next week. ?Chang Haonan closed the book in front of him and handed it back to Liu Yongquan: "But before that, the research work in several key directions must be started as soon as possible. In addition, I will personally be responsible for the two directions of turbine and thermal processing technology. As for the compressor, I think it can be left to Comrade Liu Yongquan. What do you think? ? The latters name was suddenly called and he couldnt even react immediately. Until Haid called his name again: Yongquan, would you like to express your attitude? Guaranteed to complete the task! (End of this chapter) Chapter 418 The country’s first compressor research center Chapter 418 The countrys first compressor research center As the saying goes, a big meeting is held for small matters and a small meeting is held for big matters. ?After that small meeting of ten people, the general technical direction of Turbofan 10 was basically determined. In this way, most of the issues that really need to be left to the meeting of all key members are some organizational issues. ?However, despite having made sufficient mental preparations before, the difficulty and complexity of actually taking charge of an entire project far exceeded Chang Haonan''s initial imagination. Even without encountering any obvious internal resistance, it still took him almost half a month to finally allocate the core research and development tasks involved in the Turbofan 10 project. The deadline was fully doubled from the original plan. Of course, for China''s aerospace development researchers, things like doubling the delay were basically routine in the past... So its not a big problem. Fortunately, everything is difficult at the beginning, but the subsequent work is much easier to sort out, and the entire project team is gradually getting on the right track. For Chang Haonan during this period, in addition to the overall design of the header turbofan 10, the first thing he had to complete was to build a specialized small high-speed adsorption compressor test bed. TORCHMultiphysics can indeed conduct numerical calculations and simulations of design solutions with a very high degree of fidelity, but this is only for the design process, and the content involved must have existing theories or at least engineering foundations in the past. It is an international initiative to apply the boundary layer suction principle to the design of compressor blades. Therefore, Chang Haonan not only has to complete the turbofan 10 project, but also has to improve the theoretical content in this area so that latecomers can do it. Just know why. On the other hand, even if the entire design process can be completed on a computer in the future, the finished product will always have to be tested on a real machine before it can be finalized. This is not only a national standard, but also the bottom line of aviation safety. ?If you just rely on "I Xunsi" to design, sooner or later there will be problems. ?However, this test bed equipment cannot be placed in Shengjing. Because the data calculations it generates require extremely high computing power to complete the analysis, and neither the 606 Institute nor the 601 Institute currently has a supercomputer on hand that meets the requirements. So in the end we had to arrange it at Beijing Hang University. ?At this moment, the happiest person is naturally Tang Lintian. ??When he heard Chang Haonan, who was rushing back to the capital after a long journey, talking about this matter, he almost reflexively jumped up from his chair and strode to the latter. ??Had it not been for Zhu Yadan standing in an imposing posture next to him, Chang Haonan had no doubt that the other person would hug him and kiss him a few times. Comrade Haonan, tell me, what kind of support do you need from the school? Even if all the teachers and staff of the school dig into their own pockets to advance the money, your request will definitely be met! If a university wants to develop, in addition to high-level researchers and sufficient funding, there is another item that is easily overlooked, which is some irreplaceable experimental equipment. Especially for the engineering field, these equipments often require large investments, long cycles, and relatively narrow applicable fields. Once a set is built in a country, or at least in a region, it is difficult to make the decision to repeat the construction, so within a certain range All research groups engaged in related research will be physically concentrated around this single seedling. Institutions that own such equipment can naturally gain huge benefits from it. At least a part of the research results must be shared, and a name must be added to the signature. Over time, it has formed a leading position in this discipline or direction. ?Of course, there are other reasons why Tang Lintian, who has always been relatively stable, became so out of control. ?Before this, Beijing Hang University had suffered a setback in the construction of a school-level wind tunnel laboratory. It got up early but ended up working late Although the predecessor of Beijing Hang University, Beijing Aviation College, was founded in 1952, it soon owned four then-very advanced scaled-down wind tunnels D1-D4 by moving in and building it by itself. Among them, D4 wind tunnel was fully involved in the process. The development work of my country''s first light passenger aircraft "Jingcheng No. 1". ?However, in the following decades, Beijing Hang University did not build newer wind tunnel facilities, and was eventually overtaken by Northwestern Polytechnical University in this regard. ? One step at a time, one step at a time. Although Beijing Airlines later tried to catch up with its competitors in this regard, the situation did not improve much until the 1990s. The main reason is that in this year and year, there are not many research projects in China that can use wind tunnels. For large national projects, the 29 base in Fucheng can be used for testing, so the application for the construction of new wind tunnels submitted by Beijing Airlines has always been Unable to pass, we can only make repairs based on the D4 wind tunnel that has been used for 40 years. ? And this test bed plan brought by Chang Haonan from Shengjing can completely serve as a new track for Beijing Hang University. "Well... there is no need to be so exaggerated as selling iron. This test bench is part of the Turbofan 10 project. It does not require funding from the school. All I need is to give me a place. It would be better if the area is larger." Chang Haonan looked a little too enthusiastic. Tang Lintian couldn''t help but take half a step back. Hey, how can that be done? The school must support your work, Comrade Haonan. ??Tang Lintian directly stretched out his hands and held Chang Haonan''s hand: I think its better to take this opportunity to establish a compressor research center. You dont have to worry about funding. Except for the funding related to the No. 10 Project, the remaining vacancies will be filled by the school! ?Chang Haonan was a little surprised by the other party''s sudden generosity. "Dean Tang, isn''t this a bit too aggressive..." After all, in his impression, his school was not so tight in the late 1990s, at least it was not so wealthy. In any case, the school could have so much surplus funds in the first half of this year because it borrowed your money and used these funds to support your work, which is what it should be..." ?Tang Lintian quickly explained, fearing that Chang Haonan would not want the money. For Beijing Airlines, no matter what new research field they want to engage in, passing the approval is the most difficult part. But now that Chang Haonan has a sword like the Taihang Project in his hand, what kind of approval can he fail to pass? As for money, thats even more trivial When the research team is awarded a horizontal project, the funding it receives will basically be plucked once by the school. The proportion varies from one quarter to one half. Of course, the funds for people like Du Yishan or Chang Haonan must be fully paid. But in the past year, under the leadership of the latter, other research groups in the school have also received many more projects than in previous years. There are not only vertical topics from higher-level units, but also horizontal topics provided by many state-owned enterprises and even private enterprises. Accordingly, the school reluctantly made a lot of money from it. Sponsoring a research center is no longer unthinkable. Then lets build three of these compressor test benches at the same time. Since the other party''s hospitality was difficult to refuse, Chang Haonan was no longer polite. "OK." ?Tang Lintian nodded. The designed single-stage pressure ratios are 1.4, 1.6 and 2.4 respectively, corresponding to the upper speed limit of the blade tip of 150m/s, 300m/s and 600m/s respectively. Listen to you. ?Tang Lintian nodded again. In addition, I also need a large test bed with non-contact scanning temperature measurement equipment, as well as corresponding fuel pipelines and ignition equipment, and the operating temperature must reach at least 1600C. ?This obviously has nothing to do with the compressor as a cold-end component, but Chang Haonans preparation for subsequent turbine research. ?This level of extravagance made Zhu Yadan, who could not understand the conversation between the two, a little worried. ?However, Tang Lintian glanced at Chang Haonan and after half a second of hesitation, he gritted his teeth: Also. Thats a deal! Chang Haonan stretched out his other hand with satisfaction: "But my energy is really limited now. Please let my teacher be in charge of this experimental center." "make a deal." The four hands of the two people were tightly clasped together. (End of this chapter) Chapter 419 Ermao in trouble Chapter 419 Ermao in trouble At the same time that the research and development of the turbofan 10 project led by Chang Haonan was in full swing. ?At the Ivchenko-Progress Design Bureau in Zaporozhye, a unique ceremony is taking place. Pay wages. ?Although it sounds very ordinary, for the employees of this old design bureau, the last time they were paid a real "salary" is indeed a long time ago. Everyone lines up in three teams according to their positions. Engineers are on the far left, operators are in the middle, and logistics staff are on the far right. Take your work certificates and ID cards. Everyone in the design bureau has them. Dont mess around..." ?Two employees from the finance department held loudspeakers in their hands and kept order in the huge workshop by shouting at the top of their voices. ??Although this design bureau completed its privatization and restructuring a few years ago, its name has not changed, so everyone habitually continues to use the previous name. Except that the once prosperous factories, schools and streets have become depressed and deserted, and almost everyone does not have enough to eat, nothing seems to have changed much from ten years ago. Fortunately, queuing is something that old Soviet people are familiar with. ??Besides, after the alliance disintegrated, they havent even had to line up for a long time In the past, I had money in my pocket but couldn''t buy anything, but now I don''t even have any money in my pocket. Since everyone has trouble eating, there will naturally be no shortage of goods. At least there is no shortage on the shelves. So everyone has no complaints about being able to experience the feeling of queuing again, or even queuing to receive wages. ??The crowd quickly divided into three lines according to the instructions, and lined up quietly waiting for the money to be distributed. Uncle Ivanov, have you heard anything? ??A young man in the middle line looked around for a while, and then asked in a low voice to the gray-haired old man in front of him: "How come the bureau suddenly has money to pay wages? Did it receive any new orders?" China''s basic industrial system is inherited from the Soviet Union. Therefore, the Ivchenko-Progressive Design Bureau is similar to the 606 Institute. It is a relatively simple design unit. The products designed by it will be handed over to another factory under the same system-usually Motor Sich Manufacturing Plant is responsible for production. ?Now after the completion of corporatization, the two have even been merged directly into the same group in name. But they all have considerable independent authority in terms of operations. ?Theoretically speaking, with what Ermao is still holding in his hands, even if he sells his property, his life will not be so miserable. However, after 1991, compared to Sanmao, which almost continued the alliance system, and Da Mao, who had a big business and at least maintained the most basic order of production and life, the situation on Er Mao can be described as a complete collapse. The companies after privatization collapsed to the point that even if they wanted to sell Soviet heritage like Sukhoi or Ilyushin, they didnt know what they had to sell. And the inheritance in their hands is indeed a bit embarrassing. Most of the time, what Da Mao needs to do to resume production is to check for deficiencies and fill in the gaps, while Er Mao optimistically says that it is Nuwa who needs to mend the sky. In other words, although there are many key links in the industrial chain on the latter side, if you really want to create the most downstream and most profitable "products", you can almost only go back to the ones that have already been divided. The eldest brother who has lived at home is connected. ??However, now the eldest brother seems to have found a new love from the south, and he pays less and less attention to the second brother... So, being able to pay wages is both a surprise and an surprise for the employees of Ivchenko-Progressive Design Bureau. And like this young man, a quick-thinking person who has not experienced life in the league for too long has realized from these years of troubled life that opportunities cannot come by just waiting. You have to find a way to do it yourself. Just grasp it. To seize opportunities, the most important thing is of course information. The old man named Ivanov turned around and looked behind him. He quickly recognized the young mans identity and couldnt help but show a slightly surprised expression: Oh, it turns out to be little Sashurya, I thought you had left with Alyonushka and the others. Unlike these old people who have feelings for the design bureau, many young people choose to leave the factory and find another way to make a living after experiencing a life without wages for several years. Some people choose to go abroad through various channels, while others choose to engage in other Work or just join the gang. No, Uncle Ivanov, I am different from Alyona and the others. The Design Bureau raised me and I will not leave here. Alexander Chulsky shook his head and replied righteously: Besides, I have grown up and cant do anything else except carpentry. Even if I go out, I may not be able to find any job, so I might as well stick with you. Hearing these words from the other party, Ivanovs eyes were even more moved: "Okay, but the bureau didn''t receive any new orders. I heard that they cooperated with Tupolev and exported the technical data of the D436 engine along with the Tu334 passenger plane in exchange for a large sum of money. " As a senior engineer in the design bureau, Ivanov is naturally much better informed than a small ordinary carpenter. ?While chatting along the way, two people had already taken their turn in the queue to collect the money. Engineers are charged 40 US dollars plus 600 hryvnia per person, while ordinary employees are charged 20 US dollars plus 400 hryvnia per person. Why are most of them hryvnia? Ivanov complained to the financial staff in front of him with some dissatisfaction: Chinese people will never pay in our currency. What they give must be US dollars. ?Hryvnia is a currency issued by Ermao in 1996 to replace the Kubon bonds issued in 1991, which were almost useless paper at that time. ??Although inflation has not been too serious in the past year, the experience of previous years still makes everyone uneasy about the new currency. In such an environment, the U.S. dollar is naturally the well-deserved hard currency. How much money will be paid and how it will be paid are all determined by the above, Mr. Ivanov, we are only responsible for the operation. I havent received enough money myself..." The person who was asked also had an angry look on his face. It is naturally impossible for the Chinese to pay hryvnia. They will either barter or pay US dollars. ?The financial employees sitting here distributing money have the same standard as the "logistics staff" in the row on the far right, which is 10 US dollars and 300 hryvnia. ?This amount of money is barely enough for one person, but it still cannot guarantee enough food for a family of four or five. Apparently, someone poured a hand in the middle. ?However, for Chulsky, who had enough to eat and the whole family was not hungry, it was quite satisfying to receive a salary with US dollars in it. ??And now he is concerned about something else. ?Chulsky was indeed an orphan raised in an orphanage affiliated with the Design Bureau, but this was only the least important reason why he chose to stay in the Design Bureau. ?There is indeed a local smuggler responsible for smuggling people. It is said that they have a way to take people to France or the United States, and promise to help people who have passed by find a job. ??But being naturally calm, he did not sell off his little property in exchange for travel expenses when his brain got hot. Instead, he first spent about a year and a half learning English. ?Although I am not fluent enough, I can at least speak a few words without losing my sight. And also took advantage of this period of time to carefully observe the operating modes of those snakeheads. turned out to be that most of the targets that the other party finally sent away were young and beautiful girls. Including Alyona Melnikova, whom Ivanov just mentioned. ?Then the so-called "a job" seems more suspicious. After all, most serious industries seem to need more young and powerful men. More importantly, although he is just a carpenter responsible for making wooden models, Chulsky''s intuition tells him that the design bureau he works for should be a real gold mine, but he has not yet found the right way to dig it. . What happened today undoubtedly verified his guess. ??Although each person can only receive hard currency ranging from 10 to 40 US dollars, considering that the entire design bureau still has thousands of employees, the total amount is quite large. "Uncle Ivanov, I will invite you to eat at Aunt Bestemianova''s restaurant outside at noon, but you have to tell me what happened recently and what happened to those Chinese people you just mentioned. " ?Chulsky pulled Ivanov out of the crowd and said to the latter. "this" Ivanov hesitated. ?After all, things are not easy for everyone these days. The price of a meal at a restaurant outside is often enough to cover two to three days of food expenses. I dont have any other family members to support, so I can save enough money for two months. Okay, but it has to be vodka. He ultimately failed to withstand the temptation of good food (and wine). "certainly" People''s names in Russian or similar languages ??have a very complex nickname system. There may be more than a dozen names used to refer to the same person. Sashulia is one of Alexander/Alexandra''s nicknames. Compared with the commonly used ones Sasha needs to be closer (End of this chapter) Chapter 420 Game about Motorsic Chapter 420: Game about Motor Sic Just as the employees of the Ivchenko-Progress Design Bureau were queuing up to receive wages they had not seen for many years, in the design bureau building not far away, Belayev, general manager of Motorsic Group, was receiving a group of guests from Austria. . In fact, he had not received any news related to this before. He only received a call from the Secretary of the Minister of Industry yesterday morning, informing him that such a group of people would be coming today. As for the specific identity of the visitor, the size of the group and the ultimate purpose, they are all unknown. ??And what is quite strange is that the other party specifically asked him to go to the Ivchenko-Progressive Design Bureau to greet him. You should know that although Motorsic and Progress are both located in Zaporozhye, the latter is in the nature of a subsidiary after all. It is a bit strange to have the person in charge of the group go all the way to a subsidiary company to receive customers. Dr. Deles, this is the head of our Motor Sich Group, General Manager Vyacheslav Belayev. This is Alexey Kuritsyn from the Ivchenko-Progressive Design Bureau ??The first person to speak was Anatoly Ribiazhin, the Minister of Industry of Ermao who came with the other party and his party. As the hosts, Belayev and others had no choice but to stop their doubts and shake hands with the visitors one by one. After introducing the identity of the relevant personnel on his side to the visitor, he turned to look at Belayev and the others: This is the general manager of the Austrian Diamond Aircraft Industry Company, Dr. Christian Drais. He came here specially to choose a suitable power unit for a new light aircraft produced by their company. "I see." ?Hearing this explanation, Belayev and Kulitsyns eyes lit up and they quickly changed their attitudes: Then welcome Dr. Delais, our Motorsic Group has strong strength in the field of aero-engines. I believe you will be able to find a model with suitable price and performance, and we will try our best to cooperate. In fact, the entire group is still in the chaotic stage after privatization. Even the two people in charge of the group and the design bureau dare not say what archival information they can dig out from the pile of old papers, otherwise they will not The export of D436 engine technology has always been suppressed by Da Mao next door, and in the end it only received about 15% of the payment. Of course, even so, the contract worth tens of millions of dollars and the advance payment of nearly two million dollars (although a considerable part of it had already become hryvnias when they got it) still made the entire Ivchenko-Progressive Design The Bureau breathed a sigh of relief. However, as the parent company, Motoric Groups benefits from this contract are very limited. During the last negotiation process, they were too honest and admitted that many of their process data had been lost and needed time to search and supplement. As a result, the production of engine parts was almost completely handed over to two manufacturing plants in Moscow and Ufa. Qi only got a small share related to bearings and fans. So no matter what the actual situation is this time, Belayev, who has already suffered a loss, must still let the words out first. Very good, this is why we chose to come here instead of looking for old aero-engine companies such as General Dynamics or Rolls-Royce as we did in the past. As suppliers, they are too strong. Fortunately, Delais on the opposite side didn''t seem to see any clues. He just nodded sincerely and continued to add: And, now that the Iron Curtain has fallen, someone has to take the first step to accept our new friends. Its already 1997, so Belayev naturally wont believe these nonsense anymore. ??If Europe really regarded itself as a friend, how could it be like this? Just for the sake of business, he still couldn''t express these slanders. ??Kuritsyn, who was next to him, was afraid that his old friend might not be able to hold back his words and he quickly changed the subject: Lets get down to business. What level is the new aircraft designed by your company, and what are the specific technical requirements for the engine? We can provide various models ranging from 1.5 tons to 25 tons. In fact, Kuritsyn had never heard that there was any aviation manufacturing industry in a country like Austria, but since the other party could convince Minister Ribiazin, there must be a relevant demand. While talking, the group of people had already entered the conference room on the top floor of the building. "Uh... I think you may still have some lack of understanding of our Diamond Company. Our main business is in the field of general aviation and does not require jet engines." ??Deleith, who had just sat down, was not annoyed at all. He just took out two documents from the briefcase he carried and handed them to the representative of the Motor Sich Group sitting opposite: This is a brand-new product launched by our company for the new century. It is expected to be the main model in the next 20-30 years. The DA450 is a dual-purpose military and civilian multi-purpose aircraft. The estimated production number may exceed 500 aircraft. ? Kuritsyn and Belayev took the file and opened it. Inside was a promotional rendering of a single-engine propeller aircraft, as well as some basic performance data. "Empty weight is 1350kg, maximum takeoff weight is 2800kg, fuselage length is 10.75m, wingspan is 11.74m, maximum flight speed is 463km/h, cruising speed is 426kkm/h, maximum ceiling is 7010m, maximum range is 2300km, maximum external load is 750kg Obviously, this aircraft was designed with multiple uses in mind, and can complete training, patrol, transportation and even ground attack missions. ??Kuritsyn quickly read the technical specifications of the aircraft, but then frowned: Your aircraft the empty weight and maximum takeoff weight seem a bit too small compared to its size? ??Although he is not an aircraft designer, as an old engineer who has been immersed in the field of aviation power for decades, Kuritsen has some ideas about aircraft. Generally speaking, for such a large aircraft, the empty weight is 1600-1800kg. Thats right, the biggest selling point of the DA450 is the large-area use of composite materials instead of metal in the aircrafts structural parts, which greatly reduces the aircrafts weight and operating costs. ?De Rais was naturally well prepared for this kind of question and answered unhurriedly: "So our aircraft only needs a 450-kilowatt turboprop engine to operate normally. The cost of fuel consumption and engine maintenance is much lower than competing products of the same type. In addition, this engine also needs to have complete full power. For digital control systems, the overhaul interval cannot be shorter than 2,500 flight hours..." After Delais finished talking about their requirements for the engine, Ribiazin, who was sitting at the head of the conference table and had been silent just now, immediately spoke: I remember that when I visited here last time, I saw an engine called AL460S. The technical data should be in full compliance with Dr. Delaiss requirements. ?Kuritsen next to him raised his eyebrows slightly. He did not remember that when Ribiazin came last, he introduced him to this model that was quite unpopular and that there was actually no hope within the group. And although the other party is the Minister of Industry, the current Ermao is different from the past alliance. Ribiazin is actually a businessman and has no engineering education background. His ability to accurately remember the engine model and parameters makes people a little bit unavoidable. surprise. ?Seeing that neither of them answered immediately, Ribiazin, who was a little embarrassed, had to add another sentence: How about taking Dr. Delais and the others to see the information on this model of engine in the afternoon? He had already said so, and Belayev had no choice but to nod and agree for the time being. ?However, as soon as the first meeting ended, the two men took Ribiazin to an inconspicuous place. Mr. Minister, the AL460S is not a finished engine that can be put into use immediately. It still needs some follow-up improvement work. ??Kuritsyn said first. Whats the point? Their DA450 aircraft is still on the design drawings. Wouldnt it be great if you spent some time perfecting the engine? ? Ribiazin shrugged, obviously not thinking this was a serious problem. However, whether it is our design bureau or the Motor Sich Factory, the people responsible for turboprop and turboshaft engines are currently concentrating on the development of the D27 propeller fan engine, and there is simply no way to put into production a new model in a short period of time. D27? Ribiazin was confused when he heard this model number. This makes Kuritsen even more strange. After all, this is a far more well-known model than the AL460S. ?However, he still explained: As long as this model can be produced with the power of the An70 transport aircraft, a 10,000kW giant, it can be said that we, Antonov, and even the entire countrys aviation manufacturing industry will be saved. But Ribiazin frowned after hearing this: But I heard that the current progress of the An-70 is not going well. The first prototype crashed just last year, and no external investment has been found. Where can you find the money to complete a brand-new transport aircraft project? Didnt it mean that the Chinese are in contact with Antonov? If they are willing to take over this project, the funding should be..." Kuritsyn was only halfway through his words when he was interrupted impatiently by Ribiazin: "The Chinese people have only visited Antonov a few times. They are obviously more interested in the jet-powered IL-76. We can''t expect a project like the An-70 that requires long-term investment. If the AL460S thing comes to pass this time, , you must give priority to ensuring the research and development and supply of this model after you return, otherwise we will not even be able to pay liquidated damages..." ??Kulitsyn wanted to say something more, but was secretly stopped by Belayev next to him. The latter had been silent just now, but he was not in a daze. He just felt that he had seen a similar plot somewhere. After Ribiazin left, Kuritsyn turned around unhappily: Why did you stop me just now? "He has obviously made up his mind. This is not a problem that we can solve in just two sentences." ?Belayev shook his head: In addition, I plan to send someone to Antonovs side in the afternoon to confirm the situation. The matter of An 70 should not be as simple as it seems..." (End of this chapter) Chapter 421 Air Police 200, officially launched Chapter 421 Air Police 200, officially established project ??What Belayev just thought of was naturally the aircraft carrier Ulyanovsk that was easily dismantled a few years ago with a contract and a mere few million in liquidated damages. ?Although this matter has not yet been widely circulated due to the lag in information dissemination and the intentional ignorance of the international media, at least everyone in the domestic military industry in Ermao already knows about it. Of course, the Ukrainian ship was actually only 30% completed at that time. Except for the nuclear reactor, none of the core subsystems were in place, and it was still far from even being launched. ?In the context of the disintegration of the alliance, even if funds are injected later, it is impossible to complete this huge ship. It can only be said to be a no-brainer, but it is not unacceptable from a rational point of view. Its just that I was cheated again when I finally sold scrap steel (the negotiated price of 450 US dollars/ton turned out to be 150 US dollars/ton), which made people very unhappy. But An 70 is different. ?This aircraft has gone through most of the design process, and all it needs is a user willing to pay and the last tremor of the D27 engine. The first prototype did crash in 1996, but that had nothing to do with the aircraft itself. It was entirely a fault of command and operation due to organizational chaos. ?According to what he learned from his last communication with Antonov, the latter has already started manufacturing the second prototype, and has even signed a new order for 4 D27 engines You must know that although Antonov''s life was not easy after 1991, it still owns Antonov Airlines, which operates more than a dozen An-124s and the unique An-225 transport aircraft. ? Relying on these almost monopolistic large-ticket air transport businesses, key projects can still barely survive. You should know that in addition to China, there are even several European countries that are unwilling to participate in the A400M project that have shown strong interest in the An-70. Especially Germany. ??If you want to say who has been the biggest beneficiary from the series of events from the drastic changes in Eastern Europe to the disintegration of the alliance. ?That is definitely not the United States but Germany. Germany, which has finally achieved the reunification of the East and West, once again felt that it could do so with the help of the European Union. It hoped that it could take advantage of this opportunity and its already good industrial foundation to regain its status as a country that had been deliberately suppressed by the two superpowers in the past few decades. The development of aviation manufacturing industry. An70 is such a project that has placed the hopes of the Germans. At this juncture, we suddenly have to give up on improving the D27 engine that has completed many test flights, and focus our resources on a small turboprop engine with a power of 450kw that has only been tested on benches. Moreover, this turboprop engine The only installation target is an unknown foreign model with only a few brochures. How do you see it, there is a kind of beauty that is missing the brainstem. ??Moreover, during the meeting just now, Industry Minister Ribiazin and the Austrian businessman Delais behaved strangely. ?Belayev, who has worked in the field of aviation power for most of his life, knows very well that there must be a high degree of matching between an aeroengine and an aircraft. Even wing cranes or tail crane structures that have very low engine compatibility requirements often require the engine (actually the nacelle in most cases) to be fine-tuned differently for different types of aircraft, which often results in essentially the same model. The engine has many sub-models. ?? And this Austrian diamond company traveled thousands of miles to find a new engine supplier that it had never cooperated with before. As a result, the information it brought did not even include the specific dimensions of the aircraft engine nacelle. You must know that the engine of this small propeller aircraft is built-in, and it is placed in front of the nose. Hence, the requirements for engine volume, especially transverse dimensions, are extremely stringent. Choosing motivation is definitely not as casual as buying groceries. ?Thinking of this, Belayev was about to turn around and call someone. But then something came to mind. Husband and wife are originally like birds in the same forest, but when disaster strikes, they fly separately. It is indeed impossible to rule out the possibility that Antonov is doing something secretly from him. So its best to be prepared. Alyosha? He turned around and called to Kuritsen who was about to leave from the other direction: "The design bureau is relatively close to the station. There should be a train to Kiev in the afternoon. Find someone who is knowledgeable and smart to go to Antonov to inquire about the situation." The latter was stunned after hearing this request. , and soon understood what the old friend meant. No problem, Ill ask someone to make arrangements. ?Belayev also told: Remember, dont go through official channels. Use ordinary employees there to check whether the An-70 project is still being advanced. ??Kuritsyn nodded to indicate that he understood, hesitated for a moment and then asked: Thenthat Dr. Delais just now Lets receive them as usual. After all, Minister Ribiazin personally brought the people here, so its better not to be too stiff. "good." The words are divided into two parts. At Jinghang University, after deploying the related research and development tasks of Turbofan 10, Chang Haonan himself is not as busy as he was in the past half month or so. ??The turbine and thermal processing processes that he is mainly responsible for require a lot of new equipment and materials and cannot be started for a while. As for the other core part, the high-pressure compressor, Chang Haonan has informed the design team under Liu Yongquan of the relevant technical points. I have to say that the latter is indeed very capable. After a short period of discomfort at the beginning, he was quickly able to complete most of the work independently. After all, in the previous life, it was under his hands that the turbofan 10 engine was finally perfected. ?Chang Haonan only needs to check the progress regularly and solve some of the most difficult problems or problems involving route selection. In contrast, it was the other two people who brought him the main workload during this period Wang Xiaomo and Liang Shaoxiu. After realizing that the British radar used by the Y-8J posed huge technical risks when facing NATO countries, the Navy immediately halted the manufacture of the other four Y-8Js that had not yet started. The remaining four sets of Sushui 2000MS radars that have lost their installation targets will be used to provide spare parts, while the four Y-8Js that have been in service or have begun manufacturing will continue to play a role in the East China Sea and the North Sea, but will also lose their status as the core of naval aviation operations. , return to the original business of "maritime patrol". Under such circumstances, the Air Police 200 early warning aircraft using the brand-new Y-8 Category 3 platform and T-shaped antenna naturally entered the Navy''s field of vision, and then passed various reviews almost at the speed of light, and the project was successfully approved at the end of July 1997. The parallel system of dual chief divisions in the research and development of early warning aircraft has also been formally established. ?Originally, these two people were planning to let themselves go completely and directly asked Chang Haonan to serve as the chief aircraft engineer. But after they came to the door, they found that someone was more courageous than them The latter has already put on the hat of a chief engineer, and if nothing else happens, he will have to wear another one after the heavy-duty die forging press project is established in the second half of the year. So Chang Haonan finally rejected their good intentions: "Now it''s enough to keep me busy running between Shengjing and Beijing, and Torch Company has just got on the right track. It''s time to focus on business and operations. Do you really want me to dance on three eggs? Its a bit overwhelming. I think the position of Chief Aircraft Engineer should still be filled by Gong Liang. As for me, as we said before, we should have a Deputy Chief Engineer in the name to help solve some key problems. After all, in the original timeline, the chief engineer of the Y8 platform special aircraft was Liang Shaoxiu. ??Although todays new Y-8 Category 3 platform still has a mediocre flying experience and poor endurance, it has at least solved the most serious problem of wing icing. ?Furthermore, Liang Shaoxiu also specially optimized the propeller propulsion efficiency, barely regaining some low-altitude and low-speed performance. So, its not a big problem. (End of this chapter) Chapter 422 Electronic warfare, not just interference Chapter 422: Electronic warfare, not just interference Another big and small event in mid-August is that the graduate students of the class of 1997 are officially admitted. As a special yet ordinary member of the group, although no one has treated Chang Haonan as a normal doctoral student, the process must be followed. So, he still had to go to school to register and register as a student. Fortunately, the school''s management methods for graduate students, especially doctoral students, are hugely different from undergraduates, so for people like Chang Haonan who are bound to not follow the normal training plan, it saves a lot of trouble. ?For example, he registered at the graduate school of the college a few days later than other students. In this era, there is no Xuexin.com and online archives, so it doesnt matter whether its a few days earlier or a few days later. Just when Chang Haonan was about to enter the graduate department that day, he happened to meet two old acquaintances who walked out of Tang Lintian''s office. Li Jie and Xu Yang from the Institute of Computing Technology, Chinese Academy of Sciences. After the development of the TORCH Multiphysics software was completed, considering that the latter was loaned out from her original unit in March this year and has been running around outside since then, Chang Haonan did not assign her new tasks and directly let her return to computing. Place. It turned out that we hadnt seen each other for three weeks, but we met again at our school. ?What a fate. Xiao Chang? Tang Lintian, who personally saw the guests out, first noticed Chang Haonan on the other side of the corridor. Then the other two people also looked this way. Permanent worker? Comrade Haonan. ?Li Jie suddenly smiled and walked quickly to Chang Haonan. ?The latter also took the initiative to shake hands with the other party: Academician Li, long time no see. In fact, the two had not met many times before. The main intersection was during the period when the software was just being designed. At this time, Tang Lintian also followed closely behind and walked over: Xiao Chang, you came to the administration building today. Is there anything you need my help with? Since the last time the compressor research center passed the approval and started construction, Tang Lintian was eager for Chang Haonan to come to him every day with something to do. You should know that after learning the news, Qinghua University, Bingcheng University of Technology and Zhejiang University almost immediately approached him and expressed their hope to "co-build" this research center as a participant. ?Of course, the results obtained from this will naturally be shared. More importantly, the alliance composed of several top domestic schools, which had always been shrouded in mystery before, finally extended an olive branch to Beijing Hang University. With such an immediate effect, if he could do it a few more times, Tang Lintian felt that he would soon reach the peak of his life. ??Its just that I have been looking around for many days, but I still cant see Chang Haonan. It turned out that today was a good start, which naturally made him extremely excited. ?However, Tang Lintian''s eagerness did not receive a reciprocal response. I...come to report to the new students. ?Chang Haonan answered truthfully. ?This unemotional answer made the atmosphere at the scene a little awkward for a while, and even felt like a dog chasing a goddess. Even Xu Yang couldnt help but hold his head and shake his head. ??Tang Lintian, who was full of hope just now, could only touch his temples in embarrassment: Oh, yes, you have just entered the Ph.D. program... Its not that he has a bad memory. Just look at the things that Chang Haonan has done in the past few months. How can a normal person figure out that he is a young man who just got his bachelors degree a few months ago? ??Finally it was Li Jie who spoke, breaking this scene that Tang Lin would never forget for half his life: By the way, Comrade Haonan, Researcher Xu also wants to see you for something this time. "Huh?" Xu Yang obviously didn''t expect that the topic would suddenly be brought to her, and it was not her initiative to follow him today: You dont have to bring me here But before she could finish speaking, Li Jie continued: Didnt you say before that there is a new algorithm that can reverse signal encryption, and that you need to use Comrade Haonans new technology... But I have only completed the preliminary development of that algorithm ?Having said that, Xu Yang finally explained the ins and outs to Chang Haonan: Well, thats what happened. "Remember when we were designing the electronic jamming pod, you mentioned an idea to me, saying that we could design a special antenna to simulate the directional signals emitted by satellites through the scattering effect of the ionosphere or comet trails? " Chang Haonan was a little confused by the other two, but he did mention this idea to a few people such as Xu Yang and Ding Gaoheng, so he nodded: "Of course I remember that the idea at the time was mainly to interfere with satellite navigation signals and use it to disable the enemy''s precision-guided weapons, such as cruise missiles or satellite-guided bombs. However, this process does not require any complicated algorithms. " The difficulty of this matter mainly lies in the hardware, that is, the antenna design mentioned by Xu Yang, how to disguise the signal as being transmitted from a satellite. ?The current GPS has just been put into use. Military and civilian uses only have open frequency bands and different accuracy, and almost no anti-interference design has been considered. In fact, due to its one-way communication characteristics, there is not much room for maneuver in terms of anti-interference. So much so that until more than 20 years later, interfering with GPS is still a matter with a low technical threshold. If its just interference, sure. Xu Yang casually smoothed the hair around his ears: But this is a bit wasteful. So I am trying to develop a new algorithm that can reverse engineer and then restore the navigation signals transmitted by GPS satellites and re-transmit them to generate any new coordinate points we want. ?This sentence was a bit awkward to say, but Chang Haonan understood what she meant almost immediately: You mean, you can directly control it instead of just interfering with the other partys GPS navigation equipment? Yes, but this requires support at both the algorithm and hardware levels. Xu Yang nodded: I originally planned to come to you to solve the hardware design problem after I understand the algorithm, but since I encountered it today, Ill talk to you first. After listening to the other partys description, Chang Haonan gave an affirmative answer after some thought: Its indeed feasible, we can talk about it in detail later In fact, its not like he hasnt thought of similar ideas before. ?Its just that if Chang Haonan spends his own time, energy and even scientific research points to develop such an algorithm, the price-performance ratio is really low. ? Because although it is not difficult to spoof GPS, once this method is noticed by the other party, it is too easy to counterattack. After all, whether it is navigation equipment or guided weapons, they do not just rely on satellites. ? Just add a filtering program to compare the GPS signal with inertia or starlight, a guidance method that cannot be interfered with. Once you find that the coordinates given by the satellite have a huge drift compared with the integration result, just block the signal directly. In the end, after a long circle, the effect is still similar to that of simple GPS interference, that is, it can only make the positioning inaccurate, but it cannot cause too obvious deviation. ?But since Xu Yang has come up with this idea now, she can be responsible for improving it. It''s okay to use it as a one-time weapon. ? Anyway, hardware design is different from targeted deception algorithms. The former is a one-size-fits-all thing, and can be used for other purposes even if the other party counterattacks. ??Seeing the two chatting animatedly, Li Jie, who was standing next to him, secretly breathed a sigh of relief. Perhaps because of the fact that she had worked with Chang Haonan for several months before, Xu Yang immediately transformed into a high-intensity stress monster after returning to the computing institute. In less than a month, four or five researchers who worked with her had their mentality exploded. . ?This time he went to Beijing Hang University to discuss with Tang Lintian the construction of a second Sugon 1000A supercomputer funded by the school. The reason why we brought Xu Yang, who had little to do with this matter, was to find an opportunity to throw her to Chang Haonan again You two talented men and women can play whatever you like, please let us ordinary people go... (End of this chapter) Chapter 423 I can only go on stage and give a lecture. Chapter 423 I can only go on stage and give a lecture. Because Chang Haonan registered a few days later than others, the "new student gift package" that Chang Haonan received was obviously richer than others. In addition to routine receipts, manuals, certificates and some small gifts, there are also all teaching materials corresponding to the first-year postgraduate course (and often the entire postgraduate period). Although Chang Haonan probably has no use for them. This naturally includes the numerical computing textbook edited by himself. The quality of this book is quite good Looking at the beautifully bound cover, Chang Haonan had a strange feeling in his heart. In the more than a year since his rebirth, he has received a lot of achievements and honors, but when he saw his name signed on the cover of a large work, it was also his own teaching materialand he was still the first, indeed the first. once. I have to say, its quite a novel feeling. ??The way he stared at a book in a daze was naturally noticed by the teacher in charge of student registration in the graduate department. As an ordinary administrator, she certainly didn''t know much about what Chang Haonan was involved in. She just felt that the students in front of her were attracted by this thick textbook, so she came over and took a look at the cover, and then showed an expression of sudden realization. . Oh? What a coincidence, the editor of this book has the same name as your classmate. Obviously, the other party thought he had grasped the key to the matter. ??Although there is no mirror, Chang Haonan believes that his expression must be wonderful at this moment: Ah, yes, what a coincidence. ??He tried his best to control his facial muscles, and at the same time put the books and all other things into his backpack as quickly as possible, then opened the door and left the office of the graduate department. If he went any slower, he would be worried that he wouldn''t be able to hold on. There is definitely no need for him to attend the class. But the class still needs to be attended. After all, I have already promised Teacher Liu Hongbo before. Since Chang Haonan registered a few days later than others, almost immediately afterward for him was a section of "Numerical Simulation Principles and Methods (1 by Mr. Liu Hongbo. At the beginning, this course was originally planned to be called "Application of Finite Element Thought in Aircraft Structural Design". The focus was actually on the finite element idea and its mathematical foundation. There were actually only a few people who actually talked about specific numerical simulation operations. But later, as Chang Haonan expanded the content many times, the course was eventually expanded into a giant course that lasted for two long semesters and had up to 9 standard class hours per week. The main content has also been upgraded from just allowing students to understand and contact the finite element method to a one-stop solution from basic theory to practical application. ?After the TORC Multiphysics software entered the development stage, he even added a lot of multi-physics simulations, new meshing methods and other related content into it. As for the potential teaching targets, it has also expanded from just the School of Aeronautical Science and Engineering to all science and engineering majors in Beijing Hang University. According to Chang Haonan, we strive to allow students who have completed this course and understood it to directly enter the practical application stage. At the end of the 1990s, the importance of computers in various disciplines had not become common sense as it would have been more than 20 years later. You must know that every year, there are many candidates from foreign schools who enter Beijing Airlines for graduate school with relatively ordinary first-level academic qualifications. They have no opportunity to experience it intuitively at the undergraduate level. So numerical simulation, especially numerical simulation in engineering, is the most important thing to let them establish the first impression of "this thing is really awesome". ?Of course, since there is only one teacher, Liu Hongbo, in the first year, he can only teach one major for the time being. Although colleges and universities have been expanding enrollment during this period, college students are still relatively expensive in general. In addition, the employment environment of schools like Beijing Airlines is good, so the entire college does not admit many graduate students in each session. Chang Haonan doesnt know the specific number of people this year, but he estimates that there will be about a few dozen people. In university courses, it is not an exaggeration for a teacher to teach to 200 people, so this number of students is more than enough. ? On the day of class, he came a little early. He was originally going to review the content with Liu Hongbo, but the latter hadn''t arrived yet, so he found a seat not far behind him to sit down. This was actually Chang Haonans habit in his previous life. Whether you are in the first row or the last row, you are likely to receive "key attention." Only the middle is the most inconspicuous. As a result, after waiting, Liu Hongbo didnt come, and more and more students came to class around him. With about ten minutes left before class started, the room was almost overcrowded by the crowd inside. Not to mention the seats, there were quite a few people sitting on the floor between the podium and the first row of desks. ?The School of Aeronautical Science and Engineering alone obviously cannot gather so many people, and there must be many other schools joining in the fun. And many second- and third-year graduate students should also have arrived. Because Chang Haonan saw Yao Mengna in the first row in front, closest to the podium. At the end of the 1990s, there was no academic administration system for course selection, so they really didnt know about this course that they had never known before. SighI havent been in class for so long that I have forgotten that university teachers are used to stepping on the bell to enter the classroom ?Chang Haonan couldn''t help but sigh, feeling that he had been out of student life for too long. Nowadays, no matter how boring he is, he doesnt have a smartphone to use. The laptop he brings with him is just for putting PPT and calculation examples in class. Because there is no wireless network, it is impossible to connect to the supercomputing center... In short, in the end, he was bored and could only open the book in his hand that he had read several times before it was published, and review it again. Just as he quickly opened the book to the chapter "Construction and Calculation of Isoparametric Finite Element Matrix", he suddenly felt someone next to him tap his shoulder lightly: Classmate, this class must be quite difficult, right? ?This question made Chang Haonan not sure how to answer it for a while ??He didnt know whether the textbook he wrote was difficult or not. After struggling for a while, I had to give a snake oil answer: I think its okay. If you listen to the lectures carefully, read more books, and go to the computer room to practice more, it shouldnt be difficult. To be honest, I have never taken a class with so much content, 288 class hours. I heard from classmates who went to some schools that their graduate courses only lasted about 300 class hours in total In the midst of awkward chats, Liu Hongbo finally walked into the classroom 5 minutes before class, carrying a thermos cup. ?The moment he pushed the door open, he was obviously shocked by the "grand occasion" inside. Liu Hongbo, who was also taking this course for the first time and was not very confident, even showed a somewhat overwhelmed expression on the podium for the first time. ?So after standing on the podium, he first looked around the classroom twice. It wasnt until I saw Chang Haonan sitting in the middle row with a computer on the table that I finally breathed a sigh of relief. ??Its just that in the eyes of his classmates who didnt know what he meant, his actions were definitely the style of a big shot. What''s more, the cover of my extremely thick textbook still has the name of Teacher Liu Hongbo written on it. Although it is ranked second. But its the editor after all, isnt it? As a result, the atmosphere in the entire classroom quickly became quiet. Ahem Liu Hongbo cleared his throat: "I am very happy to teach you this course on numerical simulation principles and methods. You are very lucky, and I am also very lucky, because I dare not say it internationally, but this is definitely the first time that a university in China has offered a similar course. We will also be the first batch of students to systematically study numerical simulation methods..." "However, today''s first lesson is not for me to teach you. You should have noticed when you received the textbook. I am one of the editors of this textbook, but there is another one in front of me. Bit." At this point, he has already raised the expectations of the students below. After all, from this point of view, the editor-in-chief named Chang Haonan, who is ranked first, is probably a very senior old professor. Even academicians. ?However, what Liu Hongbo said next was beyond everyones expectations: The real editor-in-chief of this book happens to be sitting among you today, so this class will be taught by my junior brother and your classmate, Chang Haonan! As soon as he finished speaking, the classroom exploded. "ah?" Is it true or false? Is this the difference between people? The textbook I used when I was a graduate student was actually written by my graduate student? I seem to have heard this name somewhere before Chinese Youth May 4th Medal? Are you one of the winners? When Chang Haonan stood up and walked to the podium with his computer, the person who had just been chatting with him next to him almost jumped up from his seat: I really believe his nonsense, its not that difficult. Of course its not difficult for him as the author (End of this chapter) Chapter 424 I am the standard Chapter 424 I am the standard It wasnt until Chang Haonan stepped onto the podium and connected his laptop to the projector that the turmoil caused by him in the entire classroom gradually subsided. The environment is even quieter than after Liu Hongbo came in. Because everyone is eagerly waiting to see what this textbook author, who is about the same age as themselves, can tell. When writing this textbook, Chang Haonan included many basic mathematical concepts such as vectors, matrices, and tensors in the previous chapters because he considered the need for undergraduate teaching in the future, which is basically equivalent to The content of linear algebra is retold in summary. ?However, since it is a postgraduate course now, it is definitely not possible to start from this basic part, but directly to the basic concepts of engineering analysis and the introduction to the finite element method. ?Of course, as usual, the first lesson will not cover too much complicated content. I am very happy to be here and give you this first course on the principles and methods of numerical simulation. ?Chang Haonan did not start the intellectual content immediately, but made a slightly light-hearted joke: I remember when I was in high school, our math teacher often said to us, Do you talk or do I talk? How about you come up and talk?, I guess your middle school teachers also said similar things. But now, I seem to have really come up... A cold joke that only students and teachers understood made the atmosphere in the whole classroom suddenly cheerful. Even Liu Hongbo, who had sat next to the podium and took out a small notebook to take notes, showed a knowing smile. ?Although university teachers rarely care whether students attend classes, classroom discipline must still be maintained. Hence, he often used similar expressions. Unexpectedly, not only did a student come up to speak, but he also personally invited him to come up. ?However, this paragraph will be the last tenderness that the entire classroom will experience in the next two and a half hours. Chang Haonan did consider step-by-step when designing the structure of the textbook, but this does not mean that he will reduce the density of knowledge. In fact, even if a terrifying 288 class hours have been arranged, if Chang Haonan really wants to evaluate it, the progress of the course is still relatively tight... "In a nutshell, the analysis of engineering systems requires us to idealize the system under study into a way that can be solved using mathematical means. In the not-so-complex practical problems that you may come into contact with during the postgraduate stage, we can Commonly used models are divided into two categories: lumped parameter models and continuum mechanics models, which correspond to what we often call discrete systems and continuous systems respectively..." ?Chang Haonan quickly wrote on the blackboard while speaking. PPT can indeed make teaching easier, but at least when Chang Haonan was a student, he still felt that writing on the blackboard could not be replaced to a large extent, at least for the classroom. Because the action of turning PPT pages is too simple for the lecturer on the stage, it is easy for people to ignore the students'' receptive ability. The exact same content is generally more effective if the teacher writes it once on the blackboard than if he just shows the PPT once. ??As the chalk in Chang Haonan''s hand gradually became shorter, the content on the blackboard became richer and richer. Before starting to solve a practical problem, the solution process can be divided into the following steps. The first is the idealization of the system, the second is the balance of the units, the third is the assembly of the units, and finally the corresponding calculations..." This idea is invariable in numerical simulation, especially in basic finite element method numerical simulation. Next, we will use a simple example and a complex example to demonstrate. First, lets look at this steady-state problem There are three rigid cars U1, U2, and U3 on the horizontal plane. Each car is connected through a linear spring system. Calculate the displacement of each car and the force in the spring under the following four load states... It is actually very easy to make simple things complicated in lectures so that everyone does not realize how serious they are. All you need to do is use jumping ideas and add all kinds of new concepts. But now Chang Haonan has long lost the motivation to show off his skills in front of these peers. The theoretical part of this course does require some talent, but at least 80% of the students in this classroom are from engineering majors. ?After all, this is not an era where every undergraduate graduate will be able to do CFD simulations more than 20 years later. From a practical point of view, most of them just need to be able to use this tool well, which is already very difficult. For him, the most important thing is to introduce the content in a simple and in-depth way. It is best to allow everyone who takes this class to complete the basic introduction in two and a half hours, or at least realize the role of numerical simulation in engineering design. significance. Therefore, although his pace is very fast from the beginning, for students who can go to Beijing Hang University for graduate school, as long as their minds keep following his writing on the blackboard, there will not be any insurmountable understanding gap. Soon, the first steady-state problem has been explained clearly. Following that, Chang Haonan turned the PPT to the next page and showed a smile: Next, lets try a slightly more complex problem. "This is a real practical problem, so if you can''t understand it or can''t follow the idea, that''s normal. Don''t be discouraged. This is just the first class. You just need to know that there is another way to face this kind of problem. A solution is enough. Chang Haonan''s own projects are basically highly confidential, so it is difficult to teach them directly in class, so he directly "borrowed" a problem on the aeroelastic response and vibration load calculation of wind turbine blades from Fang Zhen. Hearing what he said, the students who had just breathed a sigh of relief suddenly became nervous again. The non-cyclic exponential function is expressed as \''(S)=4/Mexp(-S/T)=4/Mexp(-t/K1T1) Wherein the characteristic constant T1-c/a, a is the local sound speed, the factor K1=0.75/[(1-M)+Ц^2M^2(A1b1+A2b2)]???? After all, it is from the steady-state problem of an almost ideal model to the graduation topic of Fang Zhen, a fourth-year doctoral student. It is still not difficult for these newcomers who have just entered their postgraduate career. In addition, Chang Haonans statement just now that its okay if you cant keep up did make some people less focused at this time than before. Here I go, I can still understand a little bit at the front, but the back feels almost like a book from heaven ??The buddy who just chatted up Chang Haonan first had a pen in his hand and mumbled in a low voice with a blank look on his face. "Okay, I felt like it was a book from heaven from the beginning..." Narrator Another person rolled his eyes at him. I can only say that he is worthy of being a textbook editor, its so scary... The third person also sighed. Have you noticed that Teacher Changs book is still there, and I didnt take it with me at all Finally someone found a bright spot. The people around him almost all turned their heads to look at where Chang Haonan was sitting just now. Sure enough, a textbook was placed there. In other words, those blackboard writings just now were all written by him without any reference materials... "As expected of a textbook editor, it''s so scary..." Another person also made the same exclamation. ?However, among the majority of people who are confused, there are some great minds who can follow the whole process. Although I havent learned many intellectual things yet, so the principles of some of the steps themselves may not be clear, but it is quite difficult to understand the overall process. ?When Chang Haonan finally showed the calculated aerodynamic/elastic comprehensive motion equation, in addition to applause and exclamation, one person in the audience raised his hand. The student who raised his hand, do you have any questions? ?The person standing up was a rather thin boy wearing glasses that were almost half the size of his face: Before uh, six pages of PPT, the part that calculates the dynamic stall model corrections. Chang Haonan was a little surprised that someone could ask such a detailed question at this point, so he quickly turned the PPT to the page the other person mentioned. "Here you set the starting point of the analysis at the blade root, and set an equivalent angle of attack and an equivalent separation point. I don''t understand why you do this..." ?Chang Haonan turned around, glanced at the curtain, touched his chin and thought for a moment. There are several students below who have also understood a lot and have begun to guess. It should be to reduce the amount of calculation in the next step..." I think its because it can make the equations written more symmetrical in form. I know many geniuses have this habit. Is this... ?Chang Haonan turned back and stood in front of the podium: Actually, there is no reason. Theoretically speaking, you dont have to set them at all. Its just that I randomly set two similar dimensionless quantities once before. ?Some people below have already breathed a sigh of relief, thinking that they have thought too much. But then Chang Haonan continued: Because it was actually the first project in the world to use this method to do aeroelastic modeling and analysis, so they later learned my method step by step and kept doing it, and now it has become a standard..." The whole place fell silent for a moment. (End of this chapter) Chapter 425 I cant continue this class. Chapter 425 I cant continue this lesson Actually, this is nothing. I just had the first-mover advantage of starting early. Looking at the stunned expressions of the students below, Chang Haonan accurately threw the remaining piece of chalk back into the chalk box: This is like a typo. If Mr. Lu Xun, the pioneer of vernacular writing, wrote it, it could be called Tongjia. But if you and I wrote it, it could only be called a typo. It was a small joke, and the effect was immediate, almost instantly relaxing the atmosphere in the classroom that had just become almost solidified. "This class has been taught for more than two hours. We did not take a break in the middle. Mainly for the sake of continuity of content, and of course to make it easier for everyone to go to the cafeteria to grab food. We ended get out of class 20 minutes early today, and there are still about ten minutes left. You can review what you just said. It was only then that the students sitting below realized that they had been listening to the lecture for such a long time. Liu Hongbo, who had been sitting on the edge of the podium, was even more shocked. ?About a year ago, he also took the opportunity of Du Yishans research group meeting to listen to Chang Haonans lecture on CFD analysis. The latter had already demonstrated a very organized language expression level at that time. ? Its just that the audience that time was basically graduate students and even college professors who already had certain experience, and the content introduced by them was mainly methods, skills and personal experience. ??But this time, when almost half of the content is mathematical physics theory, it can still maintain a high-intensity and high-level narration for more than two hours, which is quite extraordinary. You must know that teaching is a skill that has little to do with scientific research or even writing books. ?The teaching level of many academic experts or textbook authors is quite average, or even very bad. ?Primary and middle school teachers have systematic training and the threshold for teacher qualification certificates before taking up their posts. Even so, they still encounter many teachers who only follow the instructions. Let alone the university level. ??Although everyone hates teachers who only read PPT in class. But one thing that must be realized is that PPT actually raises the lower limit of college classes. Because before this thing appeared, this kind of teacher would read directly from the textbook in class... Even some students are asked to take turns reading. In short, it is even more outrageous. In this context, Liu Hongbo has always felt that he is a very serious and high-level university professor. Scientific research ability is highly related to IQ. Liu Hongbo has known for a long time that he is not a talented player, so although he has been repeatedly beaten by his junior brothers and sisters, he has actually become accustomed to it. But teaching level mainly relies on experience, and too high a talent will become a debuff in this regard - just like Jordan cannot be an NBA coach, and his level as a boss is very poor. However, today, he was completely outclassed again. This makes him somewhat emo. The lesson just now did not actually involve any advanced knowledge. He completely mastered all the content, and even wrote a considerable part of it himself word for word. Including the wind turbine blade design that was used as a final example, he also led his students on several similar projects After adapting to Chang Haonan''s working methods, many doctoral students who could only work under his leadership before can now work independently, so the efficiency of the entire research group is more than a little bit higher than in the past. But if you really want to talk about it, it will never be so smooth. It is even more impossible for the vast majority of students below to maintain high concentration for two hours. Thats outrageous Liu Hongbo closed the textbooks and notebooks in front of him, leaned back in his chair, unscrewed the thermos cup and took a drink of water. I dont know whether he was commenting on the class just now or Chang Haonan who was packing his things on the podium. ??Although Chang Haonan said that the students should review what they just said, under this situation, everyone''s focus has obviously shifted from the textbooks and notes to himself. Basically, starting from middle school, young teachers will become the object of gossip among their classmates. Let alone university and postgraduate studies. ??Its just that at this level, the truly young ones are often teaching assistants. And Chang Haonan is no longer as simple as being young. ?The people sitting below are basically the same age. ?This even made everyone wonder what to call him for a while. Call by name directly? Seems a bit disrespectful. But if you call me teacher. ?That person is a genuine new graduate student... ?However, after a brief silence, curiosity finally took over. Teacher Chang, can you tell me about your undergraduate days? Soon the first bold one took the initiative. "Just... call me teacher. Are the seniority a bit confusing?" As soon as the person who asked the question finished speaking, someone next to him questioned in a low voice. The result was a quick response: "What are you talking about? You didn''t pay attention to the class when I saw you. Didn''t Teacher Liu Hongbo say it at the beginning? Teacher Chang is his junior fellow student. Although he is in the same class as us, it is not a loss to be called a teacher..." ???????That''s right. ?This explanation quickly helped people nearby to exonerate themselves. ?Various questions related to Chang Haonan came up one after another: Teacher Chang, what projects have you done before? Teacher Chang, can you teach us some methods to quickly get started with scientific research? When I was doing my graduation project before, I felt that scientific research was so difficult ?Of course, in addition to these normal problems, there are also more extreme ones. Teacher Chang, do you have a girlfriend? Ahem Liu Hongbo, who was drinking tea, almost spat out a mouthful of water. ??He subconsciously looked at Yao Mengna, who was sitting in the first row not far away, and found that the latter had frowned and looked in the direction where the question was asked... Fortunately, time passed very quickly. After Chang Haonan answered a few questions that were barely related to scientific research, it was already the end of get out of class as promised. ??He quickly returned to where he was sitting just now, picked up the textbook still on the table and ran away quickly... This lesson will definitely not happen again in the future. As for grades, of course it wont be a problem. There are very few postgraduate courses that require examinations. ??And when it comes to fractions, to be honest, it doesnt depend on how much the teacher fills in at the end. ?Given Chang Haonans status as the God of Wealth + Leader of Beijing Hang University, if anyone dares to apply without a high score, he may be visited by Tang Lintian the next day. ?After returning to the supercomputing center as if running for their lives, Chang Haonan found Yang Huimei at the door waiting for him eagerly. ?The latter has fully adapted to the marketing work of Torch Company and enjoys it. On the one hand, the monthly income here is an order of magnitude higher than that of a professor at Beijing Airlines. On the other hand, it is also a more important point. For her who has been engaged in industrial trade for half her life, the fact that China can one day take an absolute dominant position in business with Europe is definitely something that she could not even dream of before. So just looking at the politely worded emails sent to the company mailbox in various languages ??every day makes her feel much better. Professor Yang? ?Chang Haonan opened the office door and motioned for the other party to come in together. Mr. Chang, there is an urgent matter in Jinling that needs you to confirm. I just called you many times but didnt get through, so I came over quickly. ??Yang Huimei put her bag on the assistant hand of the sofa, then came to sit down in front of the desk. . I was in class just now and my phone was muted. Chang Haonan took out his mobile phone and saw a dozen missed calls on it. Tell me specifically, what is it? "ah?" ?The other party exclaimed in disbelief: Do you still need to go to class? ??Although Yang Huimei is not from a science and engineering background, she has been exposed to it for a long time and knows what Chang Haonan''s current status is in the academic world. Even if he has just entered the Ph.D. program, who dares to ask him to go to class? Its not about listening to lectures, its about giving lectures to others. Chang Haonan had no choice but to add one more sentence. Ohthats more like it. ?Yang Huimei breathed a sigh of relief, and then introduced the whole story to Chang Haonan. Jinling Automobile Company sent a letter saying that Fiat Group hopes to establish a joint venture with them. But what does this have to do with us? Shouldnt we go to the Ministry of Machinery Industry? ?Chang Haonan took out his laptop and put it on the desktop again, and asked with some confusion. Because this joint venture also includes an automotive research institute jointly established by both parties, the other party asked us, in this case, can the research institute use our authorized TORCH Multiphysics software? (End of this chapter) Chapter 426 Jinling Ferrari R&D Center Chapter 426 Jinling-Ferrari R&D Center Is there such a thing? ?Chang Haonan was just about to turn on the computer, but the movement of his hand stopped in mid-air. Fiat, the name itself is probably not famous in China. If you are not interested in cars, you may have never heard of it. But Fiat Group has many well-known car brands. ?For example, Maserati, Alfa Romeo, Ferrari. ??Of course there are also later Chrysler, Jeep, Dodge, etc. They all have one common characteristic. That is, regardless of whether they are high or low, the sales in China are very poor. At least in the past timeline. ??If it can be said that the Korean and French systems are no longer at their peak after their glory days. ?So it means Its funny, Chinas passenger car market has never had any serious problems. There are only two short-lived models, which can barely make a splash. ??But tool carts like Iveco have always been selling well. Of course these are all things for later. ?At this point in time in the late 1990s, when Italians look at Iveco, which is almost popular all over the country, they definitely have reason to have illusions about the future of their own passenger cars in China. ?In this case, it is logical to find our old friend Jinling Automobile Company. ??Compared to the previous life, it is only two years earlier, so it is not a big deal. What really surprised Chang Haonan was the jointly established automotive research institute. This is 1997, not 2023. Let alone Italian cars, even industrial waste like Lada can be sold to China in large quantities. ?Havent you bought one without seeing Wu Yifan? Which foreign brand will come over to cooperate with China in car research? To put it bluntly, if you take the technology of the previous generation or even previous generations and replace it with a new shell, it will sell well. How can you cooperate with others? ?Chang Haonan is not yet confident enough to think that the impact of the technologies he has developed can be as great as this. Technology in the aviation industry will indeed spread downward to other industries, but this process takes time. ?Especially these days, cars have almost no serious electrification equipment, and they hardly consider aerodynamic issues such as wind resistance and wind noise. The two areas that Chang Haonan is best at cannot enter the field of automobile research and development at all. At least it cannot enter the research and development field of household passenger cars. ?If I have to say it, it may be useful in the structural design of the entire vehicle. But this is still a segment that is more focused on commercial vehicles. After all, in the 1990s, no one was using hot-formed steel and die-cast bodies on family cars. Therefore, after a while, Chang Haonan finally nodded and replied: As long as the research institute is opened in China, it doesnt matter if you use the software, not to mention that Fiat is also a trial user who has passed the application. In fact, there is generally no need to be so careful about this kind of problem. After all, the TORCH Multiphysics obtained by Jinling Automobile is only a publicly released large cup rather than a super large cup only for some users. Its just that the situation of Torch Company is quite special, and it is obviously an enterprise that is under the special attention above. ?The other party may be afraid that he will be hit by an iron fist if he messes around, so he wants to be foolproof. Then I will reply to you when I get back... ? Yang Huimei, who received a positive answer, was about to stand up, but was stopped by Chang Haonan who was a little curious: Did they say what research areas this automotive research institute is specifically responsible for? In the previous list of applicants for software trial, Fiat Group was one of the only foreign commercial users. Just because this involves some more complex legal issues, the trial version software applied for in non-mainland areas has not yet been shipped. But it seems that the other party is already a little impatient. Logically speaking, we shouldnt be in such a hurry. If Fiat really had such enthusiasm for the research and development of new cars, it would have left the Chinese market twice, so that the alliance formed later was called the "Alliance of the Losers." Thats not true. The other party just sent us a letter explaining the situation, but if you want to know more specifically, they also left their contact information at the end of the letter. ?Later that day, Jinling. General Manager Li Liangyis office was knocked open, and his secretary strode in from the outside. Mr. Li, I just received a call from Manager Yang from Torch Company, saying that as long as the jointly established R&D center is set up in China, there will be no problem. A formal reply letter and authorization document will be sent later. "That''s good. You can arrange a time and let the person responsible for external cooperation start discussing other cooperation details with the people at Fiat." ?Li Liangyi raised his head, took off his glasses and put them on the table. In fact, before sending the letter, he expected that there was a high probability that it would be approved. However, although the other party was not large in scale, its background was too strong, so he added such a procedure just to be safe. It was also delayed by nearly a week. Thinking of this, he warned his secretary again: Tell Xiao Yu to improve some efficiency there. The domestic passenger car market is changing day by day. If we can sell the car a day earlier, we can make tens or even millions more profits! Upon hearing this, the secretary took out another document from his briefcase and placed it on Li Liangyis desk: In fact, Manager Yu has been communicating informally with Fiat representatives during this period. A preliminary agreement of intent has been formed. Please take a look. "oh?" Although contacting each other privately falls into a gray area to some extent, these days everyone basically emphasizes letting themselves go, and many express regulations are not strictly enforced, let alone such marginalia. So the latter was not angry, he just put on his glasses again and started to read them one by one. As almost the last mainstream car series to enter the Chinese market, the Italians sincerity this time is quite sufficient. ?As far as Jinling Fiat is a joint venture between the two parties, in addition to the Fiat brand, Maserati, a high-end luxury brand, and Alfa Romeo, a sports brand, are also included in the contract. ?Although the latter two are only assembled domestically, this is enough for Li Liangyi to pay attention to. After all, although several car companies such as Volkswagen, Jeep, and Peugeot have already entered the country in the form of joint ventures, when it comes to luxury brands in joint ventures, there is only one Audi. ??It is also assembled in one piece. As for the automobile research institute, at first glance, it seems to be incidental. Because it is different from joint venture production and technology introduction, the partner of this research institute is Ferrari, which is also owned by Fiat. ?Its not that Li Liangyi is belittling himself and building a supercar. Jinling Motors currently has neither the ability nor the will. Fiat specifically requires that the research institute be operated independently from the joint venture company and must be named Jinling Ferrari R&D Center. This is just a play on words, because according to the current joint venture regulations, Jinling Automobile must be in the front. But if it were called Jinling Automobile-Ferrari R&D Center, the latter probably felt that he could not afford to disgrace that person. So omitting the word "car" can make Jinling sound like just a place name. ?Li Liangyi has no objection to this. He is happy to let the Italians take advantage of this in exchange for some more practical benefits. For example, the three major production lines have a higher proportion of local production. As for the other one, its more interesting. The Ferrari F1 team is willing to set aside a space for sponsor advertising on the front wings, rear wings or side cases of their cars starting from 1998. As long as it does not violate the regulations, Jinling Motors can paint anything on it. Li Liangyi frowned when he saw this. He is not interested in racing, but after all, he is the boss of an automobile group, so F1 still knows about it. But he knew it would not work. There was no F1 broadcast in China, and it was impossible for Jinling Motors to export it to Europe in a short time. So this advertising space that was supposed to be worth some money was meaningless to him. Xiao Liu, please contact Torch Company again. He put down the documents in his hand and said to his secretary: Ask them if they are interested in advertising in Europe? (End of this chapter) Chapter 427 The key to opening the European market Chapter 427 The key to opening the European market ??When Chang Haonan finished his day''s work and was about to pack up and go home, he saw Yang Huimei again at the door of the office. Professor Yang? ??He was a little surprised to see the other person for the second time in one day. Since the office location of Torch Company has not yet been determined, although the two are in the same Beijing Hang University, their offices are not close to each other. What''s more, in addition to her work here, Yang Huimei also has a teaching position, so if Its nothing major, usually we just call or send someone to convey the message on our behalf. Jinling Motors faxed us a document asking us if we need to advertise in Europe. ??Yang Huimei took out a few stacked papers from her bag and handed them to Chang Haonan: I received it just in time before I got off work. I sent it over on the way. You can see how to reply. I will get back to them after I get to work tomorrow. Advertising in Europe? The latter was stunned for a moment. ? He ??does have the idea of ????entering the international market with TORCMultiphysics software, but it is too early to start large-scale advertising. On the one hand, even the initial user reputation and localization work of related manual files have not been completed. On the other hand, the company is not that wealthy now. ?The little money in the account is enough to keep in the country, but it can hardly be used in foreign currency. What''s more, how does this matter have anything to do with Jinling Automobile? Out of curiosity, Chang Haonan took the fax from Yang Huimei and turned back to the office. Compared to the formal official letter in the morning, this fax seemed much more casual in terms of wording and format. In many places, Chang Haonan''s name is written directly instead of Torch Company. It even feels a bit like a personal letter between the CEOs of two companies. Logically speaking, established state-owned enterprises like Jinling Motors should not make this kind of mistake. ?However, after reading the letter to the end, Chang Haonan quickly understood the difference: Ill give it a try Italians are really willing to give it up He raised his head again and leaned back on the back of the office chair. ??In the morning, I asked whether the software could be used in the joint venture, so that if something happened in the future, I could take the blame, so naturally I had to follow the most formal process, and even send the original document in an official letter. But this time, its about building relationships. Its not just Jinling Motors that is trying to get closer to Torch Company. It is still Li Liangyi who is trying to close the relationship with Chang Haonan. ?Using the company''s resources to give yourself a favor is considered an old-fashioned thing. ?Of course, Chang Haonan must still seize this opportunity: You can request this advertising space, but dont be too anxious. You can reply to them tomorrow afternoon or the day after tomorrow. ?However, he also knows that he cannot owe a debt of gratitude, so he has to pay something back: "Also, tell them that we don''t need this advertising space in vain. We can sign a three-party sponsorship contract. After TORCH Multiphysics is officially launched, we will give them some discounts on the usage price, and allow them to send a few technical personnel to our company every year. Further education. ?After finishing the lecture this morning, Chang Haonan also realized that his software was okay for technical staff in universities and research institutes, but it might indeed be a bit out of scope for Chinese enterprise users at the turn of the century. ??Although both undergraduate and graduate students have been expanding since the beginning of the new century, the average level of students is actually improving due to the rapid advancement of overall scientific and technological strength. Around 2000, one could even graduate with a PhD using Fluent to do a very simple optimization of equipment components for an enterprise. ? And in 2020, a master''s thesis of this level has to rely on the tutor''s reputation to pass it. So Chang Haonan has already begun to consider the issue of talent training. After all, he relies on both the Institute of Computing Technology of the Academy of Sciences and Beijing Hang University, so there is no shortage of relevant resources. And industry-university-research cooperation will be a very important trend in the next few years. However, Yang Huimei still frowned after hearing this. After all, she has been responsible for foreign trade negotiations for a long time and knows more about foreign affairs than ordinary people: Mr. Chang, arent the conditions we offered a bit too high? The other party didnt mention the three-party contract either. They may just be using this opportunity as a favor. Although the F1 project is very popular in Europe, few people in China pay attention to it, and Jinling Motors is unlikely to enter the European market in a short time. For them, this is a useless project. Chang Haonan waved his hand: Although our company has just started and is small in scale, we still need to do a good job in formalization, otherwise it will be too troublesome if something goes wrong in the future. This advertising space is indeed of little value to them, but things like software licensing and technical staff training will not incur any additional costs for us. Everyone is equal exchange with each other. Besides, I bet. ?Chang Haonan stretched out his fingers and tapped the table gently: This is the key for our company to enter the European market. He is completely taking advantage of being a reborn person. ??Although Ferrari''s performance in the past two seasons has been like a circus, they will soon win six consecutive team championships and five consecutive driver championships, becoming the most successful F1 team in history. ?At that time, an unlimited advertising space, even if it does not occupy the most dominant position like Marlboro or Shell, is definitely worth a lot. ??Moreover, this is not the most important thing. ?The fax just now made Chang Haonan roughly guess the reason why Fiat is so eager to cooperate in establishing an automotive research institute. And it was also mentioned that the official name of this institution will be Jinling Ferrari Research Center. Instead of Fiat. After making Todt the team manager, he even excluded Montezemolo, the head of Fiat and Ferrari, from the team''s operational management. This was one of the main reasons why the Prancing Horse dynasty was later established. . ??Since so many F1-related contents can be added to the cooperation agreement, it is already obvious what this institute will study. ??Although the budget cap and related restrictions on wind tunnel equipment had not yet been passed in the late 1990s, even the major teams had a limited amount of funds that they could allocate. Whats more, there are also time window restrictions. So having a high-performance aerodynamics and structural mechanics calculation software will definitely get twice the result with half the effort for the development of new cars. ?This time its Ferrari, but what about next? ?Which team is not jealous of the Prancing Horse Dynasty? Even in this timeline, Schumacher still hit Villeneuve on a whim and was deducted all points, took unnecessary risks and crashed himself into a tricycle at Spa, or hit his leg at Silverstone. Interruption leads to withdrawal from the championship... ?It was time to win the constructor championship in 1999. You know, Ferrari hasn''t won the constructor''s championship in 14 years and the driver''s championship in 18 years. As a result, a new R&D tool was used in the 1998 season, and the team won the championship in the 1999 season. What does it mean to get immediate results? ?Who dares to say that there is no connection between these two things? There are no secrets in the paddock. ?Aerodynamics masters like Rory Byrne or Adrian Newey are not available, but the tools used by Ferrari are always available. What''s more, Jean Todt will also be the president of the International Automobile Federation (FIA) in the future. ??If TORCHMultiphysics can be directly identified as the FIA''s official CFD tool through this relationship, then this demonstration effect... Chang Haonan couldn''t hold back his lips just thinking about it. ?Looking at the confident expression on the face of her boss in front of her, and considering the other partys brilliant record over the past year, Yang Huimei decisively changed her stance: Okay, its up to you, Ill get back to them tomorrow afternoon. (End of this chapter) Chapter 428 The aviation industry is gradually taking shape Chapter 428 The aviation industry is gradually taking shape The European market is, after all, a long-term plan. The most important thing for Chang Haonan right now is to handle the several projects at hand. Fortunately, for him now, helping Liang Shaoxiu complete the overall design of the Air Police 200 is no longer a particularly difficult task. Although it has been less than a month since the Air Police 200 project was formally established, the aerodynamic and structural design of this aircraft actually started after Chang Haonan first proposed the plan of transporting an 8 platform with a T-shaped antenna. At that time, Liang Shaoxiu led the factory-affiliated design office of Factory 182 to promote the project. ?Many structural and balance issues have been solved, and what really remains are some key issues that are difficult to solve using traditional tools and methods. For example, calculation details involving antennas and turboprop engines. ?These parts are typical dirty models, that is, models with irregular surface shapes and a large number of bends that make it difficult to model parametrically. ?But this is exactly what Chang Haonan and TORCHMultiphysics are good at. In terms of aerodynamic design alone, the T-shaped antenna used is a relatively simple type. The damage to the aerodynamics of the original aircraft, especially the more difficult-to-handle longitudinal stability, is far less than that of a disc-shaped antenna, and even It is also smaller than a conformal array antenna like Falcon to some extent. The only hidden danger may be that the larger antenna area along the axis of the aircraft body, and the resulting heightened vertical tail and increased ventral fins, cause the entire aircraft to be more affected by crosswinds. In fact, this failure to fundamentally solve the problem may even cause the T-shaped antenna to be unable to be installed on a small platform (because the large area is the advantage of the T-shaped antenna). Fortunately, although the Yun-8 platform looks terrible everywhere from Chang Haonan''s perspective, its 35-ton empty weight is definitely enough. After specially increasing the area of ??the vertical tail action surface, this antenna looks very exaggerated. In the end, it only resulted in the air police 200''s wind requirements being reduced by about 2m/s during takeoff and landing. Approximately three-quarters wind strength. Quite acceptable. ?In the supercomputer operation room of Beihang University, Wang Xiaomo stood next to Chang Haonan, looking at the 3D model on the screen in front of him and the simulation calculation results flashing line by line, and said with some emotion: Even a year ago, it was hard for me to imagine that comrades in the aviation system could come up with a new aircraft in less than half a year... Well... on the one hand, the platform itself is ready-made, and on the other hand, the antenna provided by you is more friendly to our work, so the design is not difficult. Chang Haonan said and hit the Enter key to save the data and model together. Its not that he was complimenting the other person. The high-performance radar design and packaging solution provided by Wang Xiaomo ensures that the antenna itself is relatively lightweight, which indeed saves a lot of structural design work for the aging Y8 platform. Although the Y-8 Category III platform has a maximum load capacity of 20 tons on paper, any transport aircraft, especially tactical transport aircraft and passenger aircraft, are mainly designed to consider loading cargo evenly throughout the cargo warehouse, rather than large items. Concentrated load - that is a problem that only An124/C5 or at least An22 will consider. If the weight of the antenna itself is too large, additional reinforcements will be needed to the structure of the Yun-8. In that case, if a single move affects the whole body, there will be too many problems involved. Even Chang Haonan cannot do it in a short time. solve. The current transformation mainly only needs to consider aerodynamic changes, and the difficulty is much lower. This is the beginning of a virtuous cycle. It is true that the amount of water a barrel can hold depends on the length of the shortest board. But if the lengths of the other boards are okay or even slightly exceeded, then you can still pack more by tilting the barrel in a direction without short boards. ?The Air Police 200 in front of us is almost completely different from the previous one. It uses the advantages of radar antenna design to make up for the shortcomings of the Y-8 as a carrier aircraft to a certain extent. ?Although it is definitely not as good as directly changing to a reliable platform, it is not bad at the moment when you are in a hurry to use it. ?Liang Shaoxiu, standing behind Chang Haonan, pushed up his glasses: Its a regular job after all... If we leave it to our factory, just these few minor problems may delay it for a year or two. If the project schedule is delayed, then I will be guilty. Liang Gong, dont belittle yourself too much. ?Chang Haonan turned around and signaled that the other party could start packaging the data files, and at the same time comforted: "When it comes to engineering, it''s better to focus on a step-by-step approach. With this experience, you will become more proficient when doing other projects in the future. After all, the 182 Factory Design Office was just a small unit responsible for copying models before, and now it can gradually assume the responsibility. When it comes to design tasks, the progress is already very fast. Liang Shaoxiu sat in front of the computer and began to process the stored project files, and then sighed: Im still a little scared... "Seeing that other brother units are making rapid progress one by one, third-generation aircraft, passenger aircraft, and helicopters are becoming popular. Even Guihang, which has always been a close friend of us, recently launched a new model of trainer aircraft. A few days ago A comrade from our factory went on a business trip to build a city, and I heard that they are almost finished building the front fuselage. Chang Haonan originally didnt want to say that Guihangs trainer aircraft was also his own handiwork to some extent, but when he heard the last sentence, he almost subconsciously said: They are progressing so fast? You must know that Sun Huizhong only went back last month. Of course he knows that in the last life, Guihang also set a speed record in the process of producing FTC2000G - 9 months from design to first flight, and 4 months from start of construction to first flight. The production progress of the prototype is broadcast live on the public account almost every day. But when you really feel it intuitively, it is quite shocking. This is a new aircraft. ??And thats Guihang, Yunma Factory. The worst conditions in the national aviation system. It''s hard to say it''s a miracle that the front fuselage is almost off the production line in one month. Its really fast... Liang Shaoxiu just said half a sentence before he realized: Wait a minute, Chang Gong, do you also know about this training aircraft project? "Well" This question made Chang Haonan speechless for a moment: It would be better to say that I took the lead in entrusting this model to them. It is nominally a technical verification and project support for Project No. 10. ?Wang Xiaomo and Liang Shaoxiu looked at Chang Haonan almost at the same time, showing uncomfortable expressions on their faces. How come you are everywhere... ?After a while, Liang Shaoxiu opened his mouth again and explained: "I heard that the Yunma Factory received an allocation and paid the salary for the first half of the year, and there was no mention of being laid off, so all the employees took the initiative to work three shifts, and had food and accommodation in the factory. They had no days. Worked day and night for a month. In addition, Qian Province also intends to support this provinces only high-end manufacturing industry, so the provincial party committee personally takes charge to provide logistical support. In short, the battle is quite exaggerated..." Its quite reasonable. After all, I am afraid of comparison in everything. ??Surrounded by the tragic situation of laying off employees, relocating entire factories, and even going bankrupt, I not only have a secure job but can even pay wages, but it would be a life-threatening situation for anyone else. ?The project files in the computer are actually not very big, but due to the file transfer speed of this era, during the time when several people were chatting, the progress bar only jumped about two spaces. There was another few minutes of silence. Finally it was Liang Shaoxiu who broke the silence: Do you think there is a chance for the Air Police 200 to build a full prototype before October 1999? Speaking of this time point, it is obvious that he has an idea. ?According to the requirements of Project 9910, the military parade does not need to be truly finalized. In fact, each military parade has a lot of equipment that is still in the prototype stage. But you must at least ensure that the technology is mature. Especially aviation units. ??If the ground equipment fails, you can have a backup and it is great, but it will cost you a person. If the plane fails, it will be a big deal... If you ask me, its not hopeless. Chang Haonan rubbed his chin and thought for a while, then added: I mean hopefully finalized. (End of this chapter) Chapter 429 Why are your ghosts and mine different? Chapter 429: Why are your ghosts and mine different? ?At the same time, Chang Haonan was busy working on the Air Police 200 and Turbofan 10 projects. Tehran, Mehrabad International Airport. ?An Il-76TD transport aircraft painted in a Soviet civil aviation livery that is quite strange for this era is preparing to land in a quite classic "maximum **** landing" attitude. ?This method requires the pilot to align the aircraft with the runway in a dive attitude and level the aircraft at the last moment before touchdown. A great test of courage and skill. A few minutes later, the Il-76 stopped smoothly at the end of the runway. There were already many people and two trucks there, obviously they had been waiting for a long time. ?Yang Jin, an engineer from Factory 112, walked forward quickly with the staff behind him to prepare for unloading. The huge three-flap tail hatch slowly opens. The scene inside the cargo hold shocked Yang Jin, who saw the Il-76 for the first time. Six turbojet 14 engines airlifted from Shengjing. ??Although the turbojet 14 is an engine with a small size and weight, in order to ensure a foolproof transportation process, the 410 factory often uses very exaggerated boxes for packaging before installing the engine. The first batch of four engines were all transported by Y-8. Only two units could be transported at a time, and the cargo hold capacity was still tight. ?Several people jumped down from the huge springboard door. The leader came to Yang Jin and shook hands with him. Then he said in a slightly anxious tone: "This is the second batch of six engines. Move quickly. There will be another plane coming later." Six more engines? ?Yang Jin was a little unbelievable. As a technician from Factory 112, he is still aware of the capabilities of Factory 410, a sister unit. Only 4 units were delivered in total in the past six months. After all, the turbojet 14 model is used everywhere, and it is impossible to give it all to them. "No, there are some other aviation materials behind it, as well as radar." It wasnt until a group of people started unloading the cargo with the help of the tail crane that the other party breathed a sigh of relief and introduced himself: Comrade Yang Jin, right? My name is Han Linping, from Factory 410. Im responsible for coordinating the ghost modification project in Persia. Hello, but it wasnt always Lin the past few times Lao Lin was transferred to be responsible for the logistics support of key model projects, so I came to replace him. ?Han Linping explained. Yang Jin was stunned after hearing this. He had followed the overseas working team established by the factory to Persia six months ago and had not returned to the country since then, so he had very little information in this regard. ?However, he also knew that this was definitely not the place to discuss confidential topics, so he had no choice but to suppress his curiosity: Thats a pleasure to work with. Its a pleasure to work with. As Han Linping said, about twenty minutes later, another Il-76TD with the same painting landed in the same wild way, bringing other parts involved in the improvement project. You rented these IL-76s specifically from Lao Maozi? After unloading all the aviation materials and loading them into the truck, Yang Jin, who was somewhat out of breath, found Han Linping. ??These two huge airplanes really left a deep impression on him. "No, I bought a few finished aircraft from the Tashkent factory a few months ago. I didn''t have time to change the paint. The superiors considered that this could be a bit confusing, so they used them like this for the time being." ?Han Linping, who had just taken off his gloves, shook his head and looked at the IL-76 who was preparing in the distance and explained. At this moment, a Land Rover off-road vehicle stopped in front of the two of them. Get in the car first ?Yang Jin opened the car door and motioned for the other person to sit in. In fact, as a dual-use airport with a large passenger flow, Mehrabad International Airport is not suitable for undertaking such sensitive military transportation tasks. Even the Persians themselves know this and are planning to build a new Imam Khomeini International Airport. ?However, construction has just started and is far from being completed. ??The reason why I have to use this place is because the only Persian Aircraft Industry Company (IACI) that has the technical ability to maintain F4 and F14 fighter jets is right here. Even shares one of the runways with Mehrabad International Airport. If it lands somewhere else and is transported by truck, not only will it cause more noise, but there will also be other risks along the way. In the end, we can only choose to carry out transportation tasks in the evening or early morning when there is less passenger flow. Happily, after switching from Y-8 to IL-76, the number of flights required will be much less. How is our current modification progress? After looking at the rapidly regressing scenery outside the window for a while, Han Linping soon felt a little monotonous, so he turned back and asked about the project. The first two upgraded aircraft have been delivered, and now we are just waiting for you to start working on the engines. Speaking of this, Yang Jin couldn''t help but smile: Seriously, you should have come here a month earlier to hear how the Persians praised the two new engines we installed... While the two were talking, an F4 fighter jet painted in blue and gray roared and took off from another runway not far away. Here, thats one of the ones we modified. The Persians renamed it F4EC and also changed the paint. ? Lieutenant Colonel Siavash Bayani and Captain Sania Hoda were sitting in the cabin of the F4 that had just taken off, flying towards the northwest. Radar stations there reported several unusual approaches by the Turkish Air Force. Since the Persian Air Force has been troubled by the problem of aircraft readiness rate since the Iran-Iraq War, under normal circumstances, it will not respond to such actions by neighboring countries. ?Moreover, Tehran is more than 400 kilometers away from the border between the two countries, and most of the time it is simply too late. But one of the other party''s targets seemed to be particularly persistent today. It wandered near the West Azerbaijan Province several times and showed its intention to cross the border many times. ?Then you have to go and see it. ? After quickly climbing to the predetermined altitude of 12,000 meters, Lieutenant Colonel Bayani pushed the throttle valve to the end and opened the afterburner. The numbers on the aircraft''s airspeed indicator increased rapidly and soon exceeded the speed of sound. ??As an ace who has shot down Mirage F1, Su-20 and MiG-25, the 40-year-old Bayani is almost the most experienced pilot in F4 in the entire Persian Air Force. But after being transferred to TFB1 base and equipped with this new aircraft, he even began to doubt his nearly two thousand hours of flying experience in the past. Although the sea-level thrust of the turbojet 14 is about 7% lower than that of the J79, its dry weight is almost only 60% of the latter. As a result, the thrust-to-weight ratio of the entire aircraft has even increased after thrust reduction and trimming. ?But this is not a big problem. What makes him uncomfortable the most is actually the difference in feel brought about by the increase in power feedback speed. In the past, the F4 would have a very slow speed increase process after the throttle valve was activated. As a result, Bayani, who had already formed a habit, felt like he was acting like an old man in the first ten hours after boarding the plane. dementia. Always half a beat slower than the plane. ??He hasn''t felt this way since his second year at flight school. ?However, after getting familiar with the new control rules, he quickly forgot all the unpleasantness during the running-in period. ??Bayani must admit that before this, he definitely looked down on Chinese equipment. During that protracted war, both countries, whose national treasuries were increasingly empty due to huge consumption, invariably purchased a large number of weapons produced by China. But what about the experience of using it? High emotional intelligence is probably said to be relatively cost-effective. ?However, this fighter plane that was modified by the Chinese changed his mind a lot. Simply put, its great. At least when he used the J79 in the past, he would never dare to turn on the afterburner so unscrupulously. Lieutenant Colonel, the radar has detected a target with a range of 90, an altitude of 10,000, a speed of 970, and a heading of 110. Hoda reported from the back seat. In fact, there was no need for this process on this aircraft, because the HUD in front of Bayani in the front seat also displayed all target information almost simultaneously. But other than that he really didn''t know what he could do. In the past F4E, because the radar operation was quite complicated, a second pilot in the back seat was set up to be responsible for this operation. However, after the Chinese upgraded the radar, the significance of his existence as a weapons control officer was completely eliminated. But the Persian Air Force''s organization did not have time to adjust accordingly, so he still had to take off again and again, and then just watch the performance of Lieutenant Colonel Bayani in front of him. I saw it, it must be a Ghost, but the other party hasnt noticed us yet. This new radar with superior performance is also one of Bayanis favorite things. The only drawback is that the Pili 11 missile sold as a package is about the same as the Sparrow. Even if it is fired head-on, the attack range is only about 30km, which completely wastes the performance of the radar. This mission did not require permission to use weapons first, but this did not prevent Bayani from doing what he wanted to do. For example, switch the working mode of the radar. ??Although he hasn''t been able to really lock in the target. ?The other party obviously felt the malicious radar signal, but at this distance, old-fashioned radars like the AN/APG59 obviously had no way of seeing clearly what was going on. The two sides are still flying head-on, but Bayani can guarantee that the other side''s pilot has begun to feel fear in his heart. Just like when he was locked by a MiG-25 during his first airborne combat many years ago. ??And even if he really came into visual distance, he didn''t panic at all. When the sun rises in the morning, the side located in the east has an inherent advantage. ?The opponent''s pilot will be dazzled by the rising sun, making it difficult to see the target clearly. Bayani had just mentally praised the opponent''s pilot for his courage, and was about to ask the backseat pilot to pay attention to the surrounding situation - this is the only role that ballast can play in an air battle. Captain, please pay attention ?However, only halfway through the words, the F4 lost the psychological battle, made a 180 steep turn, and accelerated away from the border. Although according to the experience of the lieutenant colonel, the opponent only needs to fly for another 5 to 6 seconds before he can clearly see that he is facing an "identical" Phantom fighter. What should I pay attention to? Heda in the back seat asked doubtfully. "It''s nothing. Please be careful in the future and never be as timid as them." Bayani shook his head: If this was a dogfight, the opponent would have had a 30% chance of winning, but now he is certain to die. (End of this chapter) Chapter 430 "Stealth aircraft of unknown type" Chapter 430 Stealth aircraft of unknown model ?Bayani, who had completed the scheduled evacuation mission, did not choose to return immediately, but still followed the target in hot pursuit for a while. This is also the experience he gained in the Iran-Iraq war. ??When facing a fighter with a long range, if the mission is immediately ended when the opponent turns around, the enemy pilot who has calmed down may still choose to make a comeback, and by then the passive pilot will become himself. Especially after the F4 fighter of the Turkish Air Force experienced a 180 sharp turn that greatly affected altitude and speed, it seemed that it had no very urgent desire to accelerate and had been flying westward at a high subsonic speed slowly, as if it wanted to drag. The scheming look made the lieutenant colonel even more worried. ??In the end, he drove the F4EC to chase the target all the way to the western border of West Azerbaijan Province. At one point, he was close to about 35 kilometers behind the opponent and adjusted the radar to tracking mode. Until this moment, the target on the radar display seemed to finally feel the fatal threat. After a period of acceleration that was quite rapid for the F4, it broke the speed of sound and fled westward. Watching the number representing speed next to the target on the HUD keep jumping upwards, Bayani finally breathed a sigh of relief. While closing the throttle and slowing down, he gently took the stick with his right hand and adjusted the course to the south through a small **** turn - he Just now, we could clearly see the main peak of Mount Ayr with an altitude of more than 5,000 meters not far ahead, indicating that the plane was quite close to Turkish airspace. Although the relationship between Iraq and Turkey is not good, the two sides do not have any conflicts over border demarcation. In 1932, the two countries conducted a rare territorial exchange that both sides believed they had earned. Neither country has changed the status quo. idea, so he couldn''t continue going west anyway. Report to the headquarters that the expulsion mission has been completed. He reported his success to the headquarters on the radio, Well done, Kava 01, you can return. ??Kawa is a hero in Persian mythology. Bayani has been using this call sign since he achieved his first air combat victory in his life and was promoted to squadron leader. But after receiving the order, he hesitated and immediately applied to the command headquarters: I still have some fuel and can patrol near the border for a while. There was no immediate response from the radio station, maybe they were communicating with the more senior commanders around them. A few seconds later, the voice sounded again: Approve request, but pay attention to fuel situation. Compared to Lieutenant Colonel Bayani who was in a good mood here, Major Zehra Ergai in another F4E 40 kilometers away only felt that he had just walked away from the gate of hell. Is that radar signal still locked on us? ??Although the sharp warning sound of the RWR has disappeared, he still gasped in shock and asked Lieutenant Hakan Dange in the back seat. The latter was just a humble ballast who had just graduated from the Air Force School. Seeing the majors in front of him so panicked, he had already panicked and didn''t even hear the sound coming from the radio until Ergai called him two more times before he responded: Uh...the warning light is no longer on. ?However, the young man who participated in the actual combat mission for the first time was obviously still immersed in the panic of being locked up: "But Major, I heard that the Soviets...the Russians have an infrared-guided medium-range air-to-air bomb. Could they have fired one?" Erge is more experienced after all, and has calmed down a little at this time: How is it possible? Only the MiG-29 of the Persian Air Force can launch the R27ET, but the radar just now is definitely not the radar of the MiG-29. ?Having said that, he still hesitated for a moment, and then placed his hand closest to the infrared decoy launch button: "If you are really worried, just look back more often. If you find anything unusual, tell me as soon as possible." The strategies for dealing with radar-guided weapons and infrared-guided weapons are completely different. It is difficult for the major to make accurate judgments in the blink of an eye, but the knowledge he has learned in the past tells him that it is always right to maintain a higher speed at this time. Theoretically, any R27 series missiles tail pursuit range when facing a supersonic target will not exceed 20 kilometers. The faster it goes, the safer it will be. About a minute later, Erge finally came back to his senses from the panic: Lieutenant, you should know how to report to the superiors when you return. The purpose of their attack was actually to bomb the separatist armed forces located in the mountains on the southeastern border, and they carried as many as 3 tons of bombs for this purpose. ?However, when they actually flew to the mission area, they discovered that a considerable number of targets had moved to Persia, so they lingered near the border for a while, hesitating whether to conduct a cross-border bombing. The result almost caused disaster. Just now, his radar did not detect any targets in the sky, but the radar warning device kept sounding one after another. Even after it turned to return, the ghostly signal source continued to be locked for a long time, so that the major had to ask Dange behind to drop all 12 bombs and auxiliary fuel tanks at once to speed up his escape. ??If the superiors knew about this kind of thing, he would probably not get any good results. However, the young man in the back seat is obviously not experienced enough in this regard: Just say that we encountered an unknown enemy plane during the mission, so we dropped the bomb midway? ?Honest answer almost made Erge choke to death: Idiot, if you report like this, you will never be able to become a formal pilot in this life! There will also be a cockpit voice recorder in the cockpit of the F4 fighter jet, similar to that of a passenger aircraft, but the data storage time is very short. Except for the crash, the major has never seen anyone access the information inside, so he is not worried about these conversations being recorded. People hear. The effect of such a threat was immediate, and Dange was immediately frightened by the major: Thenthen what should we say? "well" Erge sighed for his inexperienced partner, but in this case, the two of them were grasshoppers on a rope, and they still had to give some advice anyway: "Let''s say we found a Kurdish training camp near the border, but the angle was not good, so we used all the bombs to destroy it. Then on the way back, we encountered a Persian plane that came to intercept. In order to maintain maneuverability So the auxiliary fuel tank was lost." After finishing speaking, he felt that this explanation was still a little inappropriate, so he revised his statement: "No, don''t say training camp, just say we found a transport team. That way there will be no proof." ??The Major now regrets that he just threw down all the mounts out of desperation. If he had kept two auxiliary fuel tanks, he could have at least behaved a little more calmly. Okayokay. From Dange''s point of view, this seemed inappropriate, but when he thought about his dream of flying a plane alone, he finally decided to follow Erge''s advice: Then Major, you said we encountered a Persian F14? That signal is clearly not AN/AWG9, and Erge did not continue. Although the paper detection data of AN/AWG9 reaches a very exaggerated nearly 200km, judging from the examples of the Iran-Iraq war, either this number is seriously watered down, or the Americans simply exported the monkey version of the product. In short, at least the Persian F14 is very The difficulty is that the AN/APG59 can truly lock on a target the size of a fighter jet at a distance where it cannot see the target at all. Besides, he had just tried some maneuvers that were very effective against old-fashioned radars, but they obviously had no effect. And there is a more important point - ?Saying that I encountered an F14 does not seem to be enough to convey the urgency of the situation. No, we just encountered a stealth aircraft of unknown type, so the radar was unable to search for the target throughout the entire process and had to return. "ah?" ?This statement made Dange feel that it was a bit too big. Is there any problem? "No." Under the flight helmet, the young lieutenant found that a cold sweat had broken out on his forehead. (End of this chapter) Chapter 431 Disruptor in the international arms market Chapter 431: Disruptors in the international arms market Of course, Lieutenant Colonel Bania, who was already returning home at this time, would not know that his plane had been defined as a "mysterious stealth aircraft" by two pilots who were unwilling to take responsibility. He just recalled the entire mission process just excitedly. ?Although there was no chance to have visual contact with the opponent, in any case, this can definitely be regarded as a big victory. Since 1988, Bania has not carried out any serious actual combat missions for nearly ten years. ?Especially after entering the 1990s, as the condition of the two main types of fighter jets deteriorated year by year, they even began to reduce the time for airborne training. Otherwise, we would not go to China to extend the life of the aircraft. You should know that Baniya is not the only one who is biased against Chinese equipment because of the Iran-Iraq war. Whether it is the regular army or the Revolutionary Guards, they were initially more inclined to seek cooperation from the Russians. As for why I went to China in the end... Because Persia itself does not have much hard currency such as gold and US dollars at the moment, it is obviously impossible for Moscow to accept such an outrageous request to pay in oil. Happily, judging from the results, the upgrade plan provided by the Chinese is not bad either. ?Although this time cant be said to be a real combat, it can at least be regarded as a meal replacement. There was no need to continue running with afterburner during the return process, so when this F4 with special sky blue paint landed on the runway of TFB1 base again, it was already close to noon that day. The successful completion of the interception mission is a big deal or a small matter. For the Persian Air Force, it at least has a chance to prove itself after a trough that lasted for nearly ten years. I said Lao Yang, what are they celebrating? ?Han Linping was holding a dinner plate in his hand, which contained a bowl of fish soup, a chicken pilaf and a roast lamb shoulder. This was his first time in Persia. Even though he didnt know much about the country before and couldnt understand Persian, he could still tell that there seemed to be something different just by looking at the atmosphere and the rich variety of food in his hands. . Remember the F4EC we saw this morning? ??Yang Jin took Han Linping to the second floor terrace and found a seat to sit down: I heard just now that the aircraft carried out a successful interception mission. It was the first time in the entire TFB1 base in recent years, so its natural to celebrate. The one we just upgraded? ?Han Linping, who had just taken a sip of soup, paused in mid-air. Yes, I heard that it was another F4 that intercepted the Turks. Yang Jin opened a bottle of pomegranate juice and poured a glass for himself and Han Linping opposite him. ?Although the Persian prohibition on alcohol is not strict at the implementation level, it is still impossible to openly provide alcoholic drinks on such official occasions, and fruit juice is usually used instead. ?Of course, as to whether anyone mixes wine with fruit juice to satisfy their cravings, that is a matter of benevolence and wisdom. Shall I go? Han Linping was immediately shocked when he heard the news, and almost spilled the drink in the cup with his hands shaking. After taking a sip of his own business, Yang Jin explained nonchalantly: "The F4EC after our upgrade is actually a J-8C that looks a lot like the F4. It uses some 1473 technology in terms of radar, and its performance is even better. Even if the Turkish F4E is upgraded, it will still be the best in the later stage. The level of F4J or F4S, apart from the similar appearance of the shell, there is a generation difference of about 20 years, so it can definitely be easily suppressed. " ?Han Linping immediately waved his hand: Thats not the point. Turkey is a NATO country. Although it is a peripheral country of NATO, if we can make good use of this opportunity, it will also be an opportunity for us to export equipment and make a comeback..." The reputation of Chinese equipment almost fell to the bottom after the Iran-Iraq War, and this impact could not be completely eliminated until nearly ten years later. Although for some cash-strapped countries like Persia or Laos, China''s air force equipment can already enable them to achieve combat effectiveness, but it is already the late 1990s after all, and even if the MiG-21 is modified, it will be useless. It is impossible to get into the eyes of real wealthy donors. In order to occupy a place in the higher-end arms market, cost-effectiveness alone is obviously not enough. The best way is of course to achieve a world-famous result like the Exocet missile in the Falklands War. However, this opportunity is rare, and in many cases, even if it is achieved, it cannot be made public, just like the shooting down of the rice missile at the beginning of the year. Like the Ge 25, it has no direct significance for arms sales promotion. In this case, a "cold conflict" in which there is no open fire between the two parties can also be used as good propaganda material. Basically, neither side will make a big deal about this kind of border interception, but the weapons and equipment are not expected to be sold to the masses. As long as they can be recognized by the high-level officials of several nearby countries, it is enough. The information gap here is quite large. ?For example, after the Gulf War, although the reputation of Soviet-made equipment plummeted, France was actually the most negatively affected... Compared with the current need to think hard for high-end breakthroughs in air force equipment, China Military Industry''s situation in the army is still better. The national shooting range deep in the Badain Jaran Desert. Professor Rui Xiaoting is taking several core members of his research team to make final preparations for equipment testing with the project team of Sichuan Aerospace Industry Corporation, which has also come from afar. ??If Chang Haonan was also present, then he should be very familiar with the rocket launcher parked in an open space not far away. It was the Defender 2 that Rui Xiaoting came to him to complete design optimization less than two months ago. ?Although it still uses the same extended 6*6 wheeled chassis as the Defender 1 provided by Iron Horse, the launch box on it has been firmly replaced with a 3*2 square shape. Lao Zhang! How are the preparations for the test going? ??Rui Xiaoting closed the book in his hand, handed it to a graduate student next to him, then quickly came to the rocket launcher and asked loudly. A half-white-haired engineer poked his head out of the operating room behind the cockpit: Dont worry, we are setting the elements according to the data given by the shooting range. It will be ready soon! Zhang Hongyin, designer of the Guardian series rocket launchers. ? Under normal circumstances, the testing of conventional artillery weapons and equipment will be arranged at the Huayin Weapons Testing Center near Haojing, but the weapons they want to test this time are somewhat special. After leaving the capital and returning to Jinling, Rui Xiaoting used the method previously provided by Chang Haonan to optimize the directional tube and rocket, further increasing the aspect ratio and optimizing the bullet shape. Combined with the newly developed new propellant, the weapon system The ultimate range has been directly increased from the original plan of about 240km to about 350km. And Huayin center is less than 150km from Haojing city, so naturally there is no way to test it there. You must know that the Dongfeng 11 short-range ballistic missile, which entered military service only five years ago, has a range of about this level. Of course, the warhead charge of rockets is only about one-tenth to one-twentieth of that of regular ballistic missiles, and its ability to kill point targets is not at the same level at all. It does not mean that the range on paper can almost replace it. For the People''s Liberation Army, which already has ballistic missiles in its equipment sequence, the main goal of future long-range rocket launchers is still the pursuit of rapid response and area-killing capabilities. Therefore, in the equipment selection conducted a few months ago, Sichuan Aerospace Industry Corporation''s The plan was ultimately defeated by Norinco''s competitor based on the 9K58 Tornado design. Although the latter has a shorter range, its accuracy, firepower density and reaction speed are faster, and it eventually gained the favor of the equipment system. In the export market, however, for countries that do not have ballistic missiles on hand, range is everything. Therefore, since the launch of the first model of the Defender series, it has won the favor of many countries, especially countries in urgent need of long-range deterrent weapons. As for Defender 2, there are already many interested buyers in the design stage. ??For example, there are a few people standing not far behind Rui Xiaoting at this moment. (End of this chapter) Chapter 432 Redefining "bazooka" Chapter 432 Redefining Bazooka ??These people have almost uniform beards on their faces, but they are not wearing burqas but ordinary suits. They come from a North African country that is relatively small and transparent at the moment, but has been and will be very well-known. Algeria. For a considerable number of users, the Guardian 1B rocket launcher with a range of about 180km is actually sufficient to meet their tactical needs. ?For example, Turkey and Thailand, two of the most important users at present, are negotiating with China Precision Machinery Import and Export Corporation and want to directly introduce the entire weapons production line. But for some customers with larger land areas or more ambitious customers, 180km is still not enough. And Guardian 2 is aimed at them. ?For reasons that are not difficult to guess, Algeria began to fall into an unprecedented scale of riots in the late 1980s, which gradually evolved into a civil war in 1992. ? It was not until August 1997 that this protracted war finally came to an end in essence, leaving behind a society in ruins waiting to be revitalized. Since 1996, Chinese construction engineering companies have begun contracting construction business in Algeria during the reconstruction process. ??This also includes the Algiers Pines Sheraton Hotel, a national landmark. It also became the beginning of Huaxia Companys entry into Africa. ?However, for Algeria, which has just experienced a round of intervention by external forces, quickly establishing an army with sufficient deterrence is a more urgent matter than rebuilding the country. Fortunately, as a country rich in oil and natural gas, although they are not as wealthy as the Gulf princes, the funds that can be invested in military construction can still be guaranteed. In fact, a few years ago, they inspected the old-fashioned Guardian 1 rocket launcher, but the range of the first version at that time was only about 80 kilometers, which was too far for use as a tactical weapon and not enough for use as a strategic weapon, so it was not used at that time. An agreement can be reached. After the upgraded version of Guardian 2 appeared, Alfang almost immediately contacted China Precision Machinery Import and Export Corporation through unofficial channels. ?Hence this trip. In fact, this test range located deep in the desert itself is a highly confidential unit. If it were a country with a slightly closer relationship with the West, it might not be approved to enter directly. A few minutes later, Zhang Hongyin, who had completed the Zhuyuan setting check, jumped down from the control room quickly and trotted to the side of Rui Xiaoting and his party. Several of you should have seen the situation of our sample cannon. If there are no other questions about the static data, then we can go to the monitoring room next to it? ?This kind of rocket with a caliber exceeding 400mm makes a lot of noise when launched. Except for the well-protected cab and operating room, it is difficult to ensure safety anywhere nearby. The head of the military procurement delegation, Aite Noine, nodded and followed Zhang Hongyin and Rui Xiaoting into several minibuses parked nearby. After everyone boarded the vehicle, the convoy kicked up a large amount of dust and sped along the dirt road to the shooting range working area about a few kilometers away. It is naturally impossible to have any drone live broadcasts these days. Therefore, although there are many screens in the so-called control room, the overall design of the camera positions is still relatively monotonous. , nothing more than multi-angle photography of the launch area and bomb drop area. Fortunately, the final speed of the rocket launcher is not very fast, and the entire process of hitting the target can be easily seen through the camera, so there is no need to worry too much about the demonstration effect. ??If you are fighting ballistic missiles or even hypersonic weapons, it is difficult for ordinary optical equipment to accurately capture the entire end process. It will give the audience the feeling that nothing happened just now, and the target exploded directly the next moment. The look and feel will be relatively poor. ??And it''s also difficult to determine whether you actually hit the target or whether you placed an explosive point in the target in advance. ?After sitting down in the monitoring room, Zhang Hongyin raised his hand and looked at his watch, and then said to the members of the Albanian delegation who were sitting opposite with impatient expressions on their faces: There is still about half an hour before the test launch time we applied for. Instead of waiting like this, why not let Professor Rui introduce the specific performance of our rocket launcher system? ??The reason why the test time is so stuck is because the approval is not made by the shooting range itself, but by the spare management agency of the Jincheng Military Region Air Force. The coordination and cooperation are quite cumbersome. Generally, the maximum ballistic height of a howitzer or howitzer with a range of 30-40km is about 6500-7500m. Such test firing only requires closing the low-altitude airspace and will hardly affect the normal flight of fixed-wing aircraft. However, as a rocket launcher with a range close to that of ballistic missiles, the Guardian 2 naturally has to compete with the former in terms of ballistic height. As long as it is tested, the no-fly zone area is quite large, and the whole airspace is infinitely high in one stroke, so in order to Airspace safety must be punctual. As soon as these words came out, several members of the delegation opposite looked at each other in confusion. Isnt the specific performance of the rocket launcher stated in the promotional materials you provided? Noine took out a thick color manual from the briefcase he carried with him. There was a structural diagram of the complete version of Defender 2 printed on the cover Since Wanshan Special Vehicle has not yet provided the promised 8*8 chassis, it can only use the renderings used in the previous design to temporarily fill up the number. After all, the current 6*6 site has been specially lengthened to accommodate the longer and more directional tubes compared to the old model, which looks very uncoordinated. This material is only for outsiders to see. ?Rui Xiaoting waved his hand, indicating that that thing was not important at all: Considering the traditional friendly relations between China and your country, we can reveal some more real data. Such a statement obviously instantly aroused the other party''s interest. What is more realistic data? As he spoke, Noine had already closed the notebook open in front of him. Obviously, he has understood what Zhang Hongyin and Rui Xiaoting meant. The following content is not suitable for written records. "To put it simply, the export model of the Guardian 2 will provide three different rockets. What you see in the manual is the first one, which is also the basic model. The warhead mass is 75kg, the range is 290km, inertial plus satellite guidance, the maximum The CEP on the range is about 50 meters. Noine nodded, which was the main reason why they came to China. In fact, most of the equipment of the Algerian army continued its past habits and continued to purchase from the Russians. However, when they began to consider equipping a weapon with strategic deterrent effect, they encountered difficulties. The strategic weapons of a medium-sized country cannot naturally be intercontinental ballistic missiles with a range of tens of thousands of kilometers, but the only decent land-based long-range weapons in the Russian arsenal are these killer weapons. As a result of the Intermediate-Range Nuclear Forces Treaty, all short-range missiles that met Algeria''s requirements have been destroyed. So they had no choice but to find Chinese people who had no such burden to switch to. After all, the range of 290km is barely enough for them. For most users, we will only offer this base model. ??Rui Xiaoting said as he turned the laptop in front of him to face the opposite side. The screen displays three or simple cross-sectional views. Even people who are not technical can see some subtle differences between them. Because the painter thoughtfully marked it with bold lines on it "In addition to this, we will provide two other options. One is to replace the seeker and warhead. The head that originally only functions as a fairing will be replaced with a radar seeker. The cost is that the quality of the warhead will be reduced. Its as small as about 50kg, but it can attack moving surface ships. As for the other one, it is to replace the power section. We retained the propellant corresponding to the 350km range in the initial design, but due to the arms export treaty signed later, we can only waste part of the fuel by adjusting the engine parameters. " But actually you only need to replace these key valves to restore performance to the original level. ?At this time, Noine''s expression sitting opposite him was almost unbearable: Are you sure this is a... rocket launcher? Zhang Hongyin and Rui Xiaoting looked at each other: Strictly speaking, in our equipment catalog, the official name of this model is Guardian 2 Integrated Rocket Weapon System. Of course, if you are willing to use the name rocket launcher, we have no objection... (End of this chapter) Chapter 433 Bearings are a big problem Chapter 433: Bearings are a big problem Noine looked at the computer screen with clearly marked documents on how to increase the range and how to use the rockets to attack ships. For a moment, he didn''t know how to evaluate them. In fact, let alone him, even Zhang Hongyin was a little confused when he saw this plan for the first time. The launch dynamics of rockets, especially rockets with a large aspect ratio, is an extremely complex subject in itself, and a long-range ballistic weapon with a range of more than 300 kilometers like the Guardian 2 has to experience multiple completely different environmental conditions during the entire flight. The temperature layer, after all, the design idea has completely separated from the scope of general artillery weapons. Allowing customers to change the missile body design on their own can easily make the ballistic computer, which is already poor in performance, even worse. Especially extending the range of ballistic weapons cannot be solved by adding more fuel. If you mess with the upper structure of the rocket, the stability will be deteriorated and the rocket will fly around without accuracy after launch, or it will disintegrate before hitting the target. ??At that time, the Iraqis took two Scuds and put them together to form a ballistic missile with a longer range. However, almost none of them landed properly after launch, and in the end they were all included in the Patriot''s interception "results." However, Rui Xiaoting said very confidently that he had fully considered the issue of launch dynamics. The new missile body after replacing the seeker can share launch table data with the prototype missile, and the final stage can also be adjusted by relying on active radar guidance. According to the flight attitude, the accuracy of hitting a frigate dozens of meters long can still be guaranteed. As for the extended-range version, there are no changes to the missile body itself at all. Instead, the maximum range is extended by modifying the parameters of the solid rocket motor. In short, Rui Xiaoting quickly convinced Zhang Hongyin, who was worried, with professional and accurate calculation results. Of course, customers do not understand technology, and detailed design data are commercial secrets and cannot be fully disclosed, so we can only rely on test firings to speak for themselves. ?But this is not over yet. The PPT on the computer screen quickly turned to the next page. In addition to the three existing ammunition modes, we also plan to produce supporting drones for the Guardian 2 rocket system, which can be loaded directly into the launch box, launched through booster rockets, and recovered by arresting nets. When necessary, Under such circumstances, artillery reconnaissance and meteorological observation missions can be carried out, as well as larger-caliber ballistic missiles launched from the same frame..." ??If Rui Xiaoting learned anything else besides the usage of TORCH Multiphysics at Beijing Hang University, it must be Chang Haonan''s cake painting skills. ??Be it the drones or ballistic missiles I just mentioned, it would be too much to say it was a plan. In fact, it was just the contents of the brainstorming session between him and Zhang Hongyin on the way to the shooting range. After all, these days, the entire Chinese army does not have a few serious drones, and the domestic aviation field is still close to blank in this regard. This is not a problem that those in the weapons industry can solve. ?However, Noine on the opposite side obviously didnt know this, and thought that these were very mature technical solutions like the previous parts, so he asked for a lot of details. Fortunately, half an hour was not long, and before Rui Xiaoting could no longer continue editing, it was time to conduct the launch test. On the monitor not far away, the 6*6 launch vehicle just now was speeding along a dirt road. After several turns, it stopped at the preset launch position, and then slowly lowered the support frame. "Because the fire control computer has been upgraded, there is no need to wait until we enter the firing position to calibrate the shooting elements. I have already preset the coordinate data of the target in the preparation area, and now I only need to retrieve it. Speeding up the reaction speed from entering the position to launching..." Zhang Hongyin explained from the side. As soon as he finished speaking, with a burst of dust flying, the first rocket broke through the sealing piece in front of the directional tube and shot out like an arrow off the string. Followed by the second and third shots... Compared with the previous generation product, we have modified the design of the frame, hydraulic mechanism and directional tube. The firing interval between each two rounds has been shortened to less than 2 seconds, and the firepower density is also more guaranteed. As he spoke, all six rockets were fired, the support frame of the launch vehicle was raised, and then he withdrew from the launch site as quickly as possible. The whole process probably lasted less than four minutes. "The shorter the time from entering the position to withdrawing from the position, which means the lower the danger of the firing unit. Compared with the 10-15 minutes of transfer time for most artillery units, our survivability can be improved by about four times. "????"Of course, with the range of the Guardian 2, there are not many weapons that can threaten it..." By this time, the way Noine looked at the screen was different from the first time. Even though there was no movement in the target area, he had already made up his mind that as long as the final accuracy was not too outrageous, he would definitely place the order. After the long wait. ?In another camera, six consecutive fires covered the entire target point with a white circle... Bang! Noine smashed the table excitedly: You two, I want to go to your factory and take a look. Chang Haonan, who was far away in the capital, naturally didnt know that Rui Xiaoting had already mastered Guardian 2 after getting his software. ?After sending the design of the Air Police 200 to the Fucheng Wind Tunnel, he naturally returned his main focus to the aeroengine. ?Although the compressor and turbine experimental devices have not yet been put into use, this does not mean that related research cannot be carried out at all. ?Since this period of time, Chang Haonan has obtained a vast amount of aviation engine usage data across the country since the 1980s from the Science and Technology Commission. Especially breakdown and accident data. Judging from feedback on the use of turbojet 7/13, Spey MK202 and other types of aero engines, including civilian models, the main pain points are not only the fluid dynamics design that has always attracted more attention, but also many mechanical manufacturing and Mechanical design issues. For example, he found that among the in-flight parking accidents caused by all engine components, only the main shaft high-pressure rotor front fulcrum (three-point) bearing and the LPT shaft fulcrum (four-point) bearing accounted for nearly 40%, which affected flight safety. The main problem. In aviation engine maintenance data, replacement records of parts at these two locations are often seen. Taking the turbojet 14 that has just been put into use as an example, the three-point ball bearing theoretically needs to be replaced 3-4 times during the entire life cycle. For the SPEI MK202 with a longer life span, the number of replacements will reach 6-7 times. This time, it added a considerable amount of workload to the ground staff and seriously affected the aircraft''s readiness rate. Ultimately, during the take-off, climb, cruise, and landing phases of the aircraft flight cycle, the rotor system load, rotational speed and other working conditions parameters of an aero engine continuously change with the engine flight envelope. Typical service conditions are high speed, heavy load, high temperature, etc. During flight, aircraft engines are affected by short-term transient conditions such as surge and rotor imbalance. As a result, the two bearings involved in high-pressure rotor support often have to withstand extreme operations such as speed changes, load changes, over-rotation, oil cuts, and oil starvation. Under the test of environmental conditions, early failures and benign contact fatigue failures originating from subsurface layers often occur. As for a solution... ? Considering that even engines like the CFM56 are plagued by bearing failures, simply replacing them with better materials is definitely not enough. It is also necessary to analyze the three-point contact state of the main load-bearing area, the hoop stress of the inner ring and cage performance under high-speed operating conditions, the lubrication state, and the temperature field for the typical service conditions of aeroengines. By calculating the changes in operating conditions and structural parameters, The relationship between bearing performance and bearing parameters enables optimization of bearing parameters and surface fatigue and damage resistance design. This is exactly what Chang Haonan plans to focus on next. Because this technology is also crucial for the heavy-duty die forging press project that may be launched soon. Then lets start with you first Chang Haonan put down the statistical form he had just made, picked up the receiver of the red landline phone from the table, and dialed Ding Gaoheng. (End of this chapter) Chapter 434 New DLC: High-speed rolling dynamics of bearings Chapter 434 New DLC: High-speed rolling dynamics of bearings Rolling bearings look ordinary, as if they are just beads or cylinders stuffed in a ring, but in fact, the number of balls, ball diameter, gasket angle, curvature coefficient of the inner and outer ring raceway grooves, radial clearance, etc. A series of indicators will have a significant impact on the performance and life of the bearing and need to be set according to different specific conditions. The problems faced by domestic aerospace bearings, or domestic bearings in general, are very complex, ranging from manufacturing processes, material levels to design capabilities. In many cases, it is not just that the level is not enough, but that the degree of adaptation is not enough, or there is a problem with the key parameters selected. Therefore, if you really want to improve a small bearing, it will involve many disciplines such as mechanics, mathematics, materials science, and mechanical design. It is really not something that Chang Haonan can solve alone. ??More importantly, at this time, almost all domestic research groups specializing in bearings have a mechanical or vehicle subject background, but the bearings used in aerospace engines are actually quite different from those in these places... Ding Gaoheng''s phone call was quickly connected. In fact, the normal process to find Ding Gaoheng should be through his secretary, but Chang Haonan happens to be one of the few people who can directly contact him personally. Xiao Chang, are you looking for any good news from me? Director Ding, I would like to ask you to send a notice to several universities under the Science and Technology Commission to inquire about the research and talent reserves of high-speed rolling bearings. ??As the contact between the two becomes more and more frequent, it is no longer necessary to spend a few minutes chatting first every time. If you have any questions, just get to the point. High-speed rolling bearing...what new project have you taken on? Obviously, for Ding Gaoheng, who has become accustomed to Chang Haonan''s efficiency, he will be mentally prepared even if the former creates some miracles. We are busy enough now. There must be no new projects, or we are promoting the third-generation turbofan... Do you still remember the aero-engine usage and maintenance data I asked you for last month? Hearing this question, Ding Gaoheng suddenly became energetic: "Of course you remember. During that time, in order to collect materials for you, the general office worked overtime for almost a week. The science and technology offices in various places and the equipment department of the People''s Liberation Army were also troubled by your words. I guess Ah, there are many people saying bad things about me behind my back." Having said that, when he first heard Chang Haonan''s somewhat unreasonable request, he actually agreed without even thinking about it. Chang Haonan on the phone also responded half-jokingly: Dont worry, Director Ding, I have already analyzed it. When those data are transformed into better-use equipment, the people below should remember your kindness... Chang Haonan''s name is basically quite loud in the military industry, especially in the aviation industry system. However, there is actually a separation between users and their upstream R&D personnel, except for a very small number of special personnel who are responsible for test flights or tactical research and training tasks. In addition, few people actually care about the process by which the equipment in their hands is designed. Unless it is particularly easy to use like the Kalashnikov of the past, or it is particularly difficult to use like the Type 21 Combat Dad of the future. In short, in most cases, whether good or bad, the people who directly bear this reputation must be the Commission of Science, Technology and Industry for National Defense, which is responsible for research and development, and the General Armament Department (or General Logistics Department) as Party A. ?However, Ding Gaoheng obviously has no time to pay attention to these now: Have you analyzed... so much data? It took you more than half a month to analyze it all? ??Every time he thought he could face Chang Haonan with a normal heart, the latter would always come up with something new for him. Although the use of statistical methods to rank the importance of research directions can be traced back to the Second World War, due to limitations in data volume and computing level, the development of this field has not been obvious in the following decades. It is not surprising that Ding Gaoheng Feel surprised. "Well... of course it''s not all up to me. There are other people who are responsible for inputting data, drawing and making tables, etc... But the conclusion is indeed obvious. The two sets of bearings at the front and rear of the high-pressure compressor rotor are the main failure factors in aviation engines. It accounts for more than one-third of all failure causes. This is not only a problem faced by our country, but also a problem faced by developed countries, so I hope to solve it on the new generation of turbofan engines. In fact, Chang Haonan''s analysis of these data does have some meaning in artificial big data algorithms, and it also benefits to a large extent from his identity as a reborn person. Therefore, there is really no way to explain in too much detail, so he has to quickly discuss the topic. Move to specific technical issues. "I see... But Xiao Chang, please wait a moment. You may not need to go to the trouble of making an announcement..." After finishing speaking, Ding Gaoheng put the phone receiver on the table, picked up another phone that could only connect to the internal line, asked his secretary to send him a file, and then continued to say to Chang Haonan: I remember that at the beginning of this year, the Ordnance Industry Corporation reported a relevant material, which was an application for the establishment of a bearing industry association... In the late 1990s, as various products of Huaxia were gradually able to go abroad, the demand for standardization and organization in various manufacturing industries was also increasing. However, the scale of several ministries and commissions in charge of the development of Huaxia''s industrial field was gradually shrinking, resulting in the formation of many This type of voluntary industry association. A few minutes later, Chang Haonan heard a knock on the phone. Yes, there are several research groups at Bingcheng University of Technology and Northwestern Polytechnical University that are studying this direction. I will ask them to contact you as soon as possible. The system of the Science, Technology and Industry Committee is really not efficient. Just two days later, a professor named Wang Qinli flew directly to the capital with two graduate students from his research team to meet with Chang Haonan. Hello, Professor Wang. ?The other party had already sent an email before coming here, so Chang Haonan knew that the other party was currently a professor at Bingcheng University of Technology and the department head of the School of Mechanical and Electrical Engineering. ??Although it is necessary to address one''s position when working, there is still a small difference in status between him as director and director Ding Gaoheng. Even the signature at the end of the email puts professor first. Apparently he values ??this title more. Mr. Chang, Im so happy to be able to personally participate in our project this time. ?Wang Qinli stepped forward quickly and shook hands with Chang Haonan excitedly: You dont know that during this period, several professors from our college mentioned your name to me almost every day, as well as the multi-physics simulator. "oh?" Chang Haonan, who heard about TORCH Multiphysics, also became interested: Do they have any comments or suggestions about this software? ? He ??knew that if he asked directly for evaluation, he would only get some meaningless rainbow farts, so he might as well be more direct. Well, actually, everyone is still in the introductory stage, and they havent even learned most of the functions yet. If I have to say... ?Wang Qinli lowered his head and thought for a moment: I just hope to launch some toolkits like MATLAB, especially for the production side and some users who only need to deal with simple problems. It is really difficult for them to start learning from the most basic algorithms. ?This statement really hits home the biggest shortcoming of Torch Company, which is that the software ecosystem has not yet been developed. Many MATLAB toolkits are not officially produced by MathWorks at all, but are written and released by users or other companies. Therefore, they are almost found in all walks of life (although they may not be easy to use). However, Torch Company obviously does not have such conditions at the moment. Many MATLAB toolkits are not officially produced by MathWorks. Life can only be done by yourself. "This is indeed our main plan for the next stage, and when I invited you here this time, I happened to have a similar idea to design a high-speed rolling bearing dynamics analysis module for TORCMultiphysics specifically for the bearing industry, and release it as a DLC of the software. " (End of this chapter) Chapter 435 Ten times life span Chapter 435: Ten times life span In the next two days, several more researchers working in related fields arrived one after another. In fact, if you are in a country with a relatively good scientific research foundation, this kind of problem can be directly issued as a research topic in the name of the 606 Institute or the Science and Technology Commission, just like the wing flutter analysis for the MA-60 project. , let several research groups conduct it separately. In addition to competing with each other, maybe we can also come up with something else in the process. A lot of technology accumulation in first-mover countries actually comes from this - When I researched it, I didnt know what its use was, but at some point later I suddenly discovered that it was crucial to a certain field. ?For example, the algorithm proposed by Chang Haonan at that time has now been applied in many fields such as construction, machinery, and energy, and has even become part of the national standard in some industries. ?However, with Chinas current technological foundation, it would be a bit of a waste of time to do this. As a late-developing country, it is likely that you will get extra gains by taking a trip on a road that has not been traveled by anyone before you. However, if others have already walked through it, it is better to cross the river by feeling the stones. Whats more, the timetable set by Chang Haonan for Turbofan 10 does not allow for such slow progress. With the support of many professionals, the research speed has been obviously increased. "In fact, with the development of elastohydrodynamic theory, our current capabilities can fully consider the role of elastohydrodynamic lubrication based on past quasi-static models, and more accurately calculate the rolling element/ring contact under oil lubrication. Zone oil film thickness and pressure distribution ?Wang Qinli stood in front of a blackboard and was introducing his current research direction. Professor Wang, wait... Another professor Zhang Qinggang from Northwestern Polytechnical University asked while he was drinking water: Then how do you deal with the oil film drag force, and the ferrule control theory in the Jones model? If you want to perform dynamics or even pseudodynamics calculations, it is impossible to continue to use this assumption..." Due to the relatively slow speed of information transmission in this era, although we occasionally met each other in the past, communication at the academic level was basically limited to publishing articles. After all, papers are a summary of research results, and after all, they are not as intuitive and comprehensive as face-to-face meetings. Especially for colleagues, many times the mistakes and iterations in the research process of a research group are more enlightening than the research results themselves. These things cannot be seen at all just by reading the paper. ?Now Chang Haonan suddenly brought these elders together. Although the former himself has not expressed his position, their exchanges alone have already sparked a lot of sparks. "The oil film drag force can be obtained by using the oil film thickness calculation formula combined with the Newtonian fluid model to calculate the shear stress on the contact surface, and then integrating it. The result we calculated is about 10%-20% different from the actual situation. There is a gap, but as a quasi-dynamics calculation, it can already play a guiding role in the general direction. " ?Wang Qinli put down the thermos cup and continued to answer questions from his colleagues: As for the Jones model He said with a playful smile, turned back and quickly drew a schematic diagram on the blackboard. A year ago, we really didnt have any better method, but now, we can use the displacement-deformation compatibility condition between the rolling element and the ring to determine the deformation and force of the rolling element and the ring, and solve the partial differential equation By obtaining the revolution and rotation speed of the rolling elements, the geometric relationships and load distribution inside the bearing can be obtained..." Of course I know this, but the working state of the bearing will have strong nonlinearity. How can I ensure that we can obtain a usable numerical solution? Zhang Qinggang can naturally understand what Wang Qinli means. In fact, considering the elastohydrodynamic lubrication theory is also the direction he is researching. But in engineering matters, many times it is not enough to make sense based on theory. The result cannot be calculated, everything is equal to zero, and nothing works. Well... I have to mention Mr. Chang. As he spoke, the latter glanced at Chang Haonan, who was sitting on the other side of the classroom, lowering his head to record without saying a word: As one of the first users of our school to apply for trial use of TORCH Multiphysics, several colleagues have already solved many similar strongly nonlinear partial differential equation solving problems through its numerical solution module. One of the professors who does gear research and I Cooperation, and finally developed a new computing model, which is simply..." Subsequently, he spent more than ten minutes reporting his new results in the most concise language. Considering that I am not the only one who has contributed to this work, I tentatively decided to name this model the Ice City Model. ?Wang Qin was very happy when he said this. Obviously, he was very happy to be able to show off in front of his old colleagues and old rivals. ????The muscles on Zhang Qinggangs face twitched slightly. Although there are objective factors, others are further ahead in similar research directions, so its really hard for him to say anything. ?However, Wang Qinli continued to make faces: So, it doesnt matter if Professor Zhang doesnt understand this aspect, just use our model to calculate... At this point, Chang Haonan, who was a little worried that the academic competition between the two old comrades would turn into a physics competition in front of him, felt that it was time to end this discussion. Otherwise, it may not end well. He put the notebook aside and stood up. ?Wang Qinli consciously turned over the blackboard, then moved to Chang Haonan''s side and sat back down. First of all, thank you very much for your discussion just now. It not only allowed me to determine the current development level of domestic high-speed bearings, but also gave me a lot of inspiration. You still have to be polite first. ?But immediately after the next sentence, he looked at Wang Qinli, who had just sat down. Professor Wang, your model is indeed a leap forward compared to past theories, but there are still several problems. "First of all, the Newtonian fluid assumption of the lubricant should produce a relatively large error in the calculation results when the sliding condition is severe, and when the bearing moves at high speed, the characteristics of the lubricant will also deviate from the ideal Newtonian fluid, so I personally feel that this The model should be more suitable for heavy-load and low-speed scenarios, which is exactly the opposite of the working condition of aircraft engine bearings we are trying to solve now. ?Wang Qinli was just showing off out of habit, and what Chang Haonan said was indeed correct: As expected of Mr. Chang, he hit the nail on the head. We developed this theory during the process of developing bearings for the heavy-duty turbine equipment produced by Bingcheng Boiler Factory. Zhang Qinggang, whose face was almost turning green, finally breathed a sigh of relief secretly. ? Seeing that the atmosphere was finally a little more harmonious, Chang Haonan turned around and quickly wrote a few key points on the blackboard: Bearings used in aerospace engines have to face extremely high temperatures during operation, and they must withstand huge external overloads along with the aircraft, so they are very different from the ordinary bearings you have studied in the past. So our next research direction is mainly the following points. First, we consider the coupling nonlinear effect of the aero-engine rolling bearing and the squeeze film damper, regard the motion of the aircraft as the implicated motion of the rotor system, and establish a complex structure under maneuvering flight conditions. Flexible asymmetric rotor system dynamics model supporting nonlinearity Secondly, considering the damage failure of the outer ring of the intermediate bearing, study the impact vibration characteristics of the dual-rotor system of the intermediate bearing under the maneuvering load environment, and analyze the amplitude and frequency modulation of the impact vibration of the multi-rotor system by the rotor speed ratio, maneuvering load size, bearing damage span and rotor speed. Mechanism of action Then Finally, based on the above theoretical and engineering foundations, and based on the idea of ??damage tolerance, we carry out the optimization design of aero-engine bearings based on complex cycle conditions. After the introduction, Chang Haonan put down the chalk in his hand and looked at the professors who were still writing furiously with their heads down: "Considering that the basic design of the turbofan 10 engine has not yet taken shape, we are temporarily designing it based on the Spey MK202. The relevant data will be provided by me. However, please note that this project involves confidentiality issues. If you want to bring When students participate, they must explain the situation to them in advance. As for the goal, it is initially set to increase the service life of the three-point and four-point bearing sets to ten times the original! Ten...ten times? ?Hearing this goal, even Wang Qinli''s hands shook and he almost threw the pen away. As a purely mechanical part, bearings are generally considered to be difficult to make leaps and bounds. Their past research results have basically been improved by 30%-50%. Even if advanced foreign technology is directly introduced, it will be 2-3 times. level. As a result, when he opens his mouth now, it is an order of magnitude? Chang Haonan was not surprised by this reaction and just nodded lightly: "Well, the current average life of these two parts is less than 300 hours. If it can be increased ten times, the parts and the whole machine can have the same life. In this way, a lot of unnecessary work can be saved in the design just for the convenience of replacement. No added structure helps reduce the structural complexity and weight of the engine. For the new generation of engines, this is a crucial part that must be broken through! (End of this chapter) Chapter 436 Someone wants to buy our airliner? Chapter 436: Someone wants to buy our passenger plane? The elders sitting below are all professionals who have been involved in the obscure field of bearings for more than ten years or more. After listening to Chang Haonans introduction to the research plan, although he felt that the latters goal was a bit too high. High, but I still approve of the plan itself. In addition to the clear and logical theoretical analysis and the official identity of the chief designer of the Taihang engine, a considerable part of the reason for this is that even if several people have not used it, they have at least seen TORCH Multiphysics, which was developed by him. software. ???If someone else brazenly said here that they wanted to use numerical calculations to establish a dynamic model of a flexible asymmetric rotor system with complex structural support for nonlinearity under large external overload conditions, I am afraid they would only receive a few ridicules. But Chang Haonan is different. Although on the surface, his main achievements so far are concentrated in fluid mechanics, structural mechanics and control theory, if we really summarize his results, the common ground is actually in the field of computational mathematics. ?The mathematics community may still have disagreements on whether this thing can be regarded as fundamentalist "mathematical research", but engineering people don''t pay attention to this, as long as it is easy to use. Chang Haonan could naturally see that the people sitting below did not believe his claim of increasing the bearing life by ten times. Actually, the ten times figure was still a conservative estimate made by him because he was worried about scaring these people, but now it seems that it is still not conservative enough. But it doesnt matter, the results will speak for themselves. People who lived in the late 1990s really knew nothing about the power of advanced optimization algorithms. ?Of course, to ultimately achieve this goal, it is certainly not enough to simply improve the way bearings are designed. In fact, after determining the bearing structure, he still needs newer, or more adaptable materials and processes. At present, the bearing steel used in China is mainly ordinary bearing steel GCr15 and a small amount of molybdenum series steel M50. This is no different from developed countries. Naturally, the latter is the main source of expensive aero engines. However, although the room temperature hardness of M50 steel can reach HRC62 and has good hot hardness, and can work continuously and normally at up to 316C, its fracture toughness is very poor, and its d.n value is difficult to exceed 2.4106mm.r/min. , reflected in the insufficient anti-flaking ability of the bearing surface, which can easily cause irreversible damage under certain extreme working conditions. This is also the reason why most aerospace bearings eventually reach their end of life. How to improve the idea? Its easy to say. Any graduate student who is engaged in metal materials can explain it clearly - Reduce the carbon content, increase the nickel content, maybe increase the nitrogen content, and then surface harden... But just having an idea is not enough. You also need to determine how much carbon to reduce, how much nickel to add, how to harden, what process to use, and what coating material is... This is why the raw material everyone uses is M50, but the aircraft engine bearings made by Pratt & Whitney, Rolls-Royce and General Motors have longer service life and better stability. All these details can only be determined based on the specific parameters and requirements of the bearing after the detailed design plan is released. As to how to determine In the past, it could only rely on trial and error, highly dependent on the experience of materials engineers, and of course luck, and the investment required was naturally extremely staggering. But now, Chang Haonan can give them at least some guidance in the direction. Efficiency is naturally different. Theres a long way to go Chang Haonan closed the notebook filled with research plans in front of him, looked at the backs of several other people getting up and leaving the conference room, and muttered to himself. As a person who has lived a new life, Chang Haonan naturally sees problems with the China Aviation Industry in the late 1990s, but for people who are living in the present, the changes that have occurred in the past year or so can be used as miracles. to describe. Hao Jing, Yan Liang. The fourth prototype of MA-60 and the second prototype in full condition is parked on the tarmac. A group of people in suits and ties were gathered around the right engine of the plane. ?Different from the usual yellow or metallic colors of other prototypes, this aircraft was painted with a blue and white paint scheme for the first time today. Those with sharp eyes will also notice that a trapezoidal flag symbol with red, blue and white intervals is painted on the vertical tail of the aircraft. Flag of Thailand. Obviously, this painting is very targeted. "Mr. Jonjit, this is our latest regional airliner, the MA60-100, which is also the basic model of the entire series. It can accommodate 60 passengers in normal layout." A staff member from Huaxia Aviation Technology translated into Thai what Gao Quan, general manager of Haojing Aircraft Company, said about the aircraft. "Like several other regional airliners of this level, the MA-60 currently uses the PW127J series turboprop engine produced by Pratt & Whitney. There is no difference in performance and working mode, but in terms of supporting propellers, we use The self-developed 6-blade composite propeller with higher propulsion efficiency and safety, combined with the new wing with a large aspect ratio, can save an additional 8% in fuel consumption. When he heard this, the Thai manager named Jonjit''s eyes lit up. In fact, his trip was to seek a batch of new light regional jets for Bangkok Airways. Although Bangkok Airways is named after the capital of Thailand, which sounds very powerful, it is actually just an ultra-small airline that has been established for more than ten years. So far, it only has eight Schott 330 aircraft that are over 20 years old. passenger aircraft and 14 slightly newer ATR72-200 passenger aircraft. Originally, according to the plan, they were going to purchase a batch of Airbus A320s to upgrade their fleet, but the decision was made in mid-August 1997. Even a fool could feel that the economic situation in Southeast Asia was not quite right, so the management acted decisively. There has been a wave of consumption downgrades, turning the four mainline airliners in the original purchase plan into six regional airliners with 50-60 seats. Logically speaking, there are not many choices for aircraft of this level. Considering that Bombardier''s latest 8-400 is still a piece of cake, even the prototype has not yet rolled off the production line, and the 8-300 is already nearly ten years old. If the aircraft is an old model from two years ago, the only remaining option should be to continue purchasing the new generation ATR72, which is the ATR72-500 aircraft. ?However, the importance of advertising is reflected at this time - The excellent performance of the MA60 at the Paris Air Show gave Bangkok Airways'' management a moment of hesitation. Huaxia Aviation Industry is basically not very transparent in the field of civil aircraft, but AgustaWestland is an Italian company after all, so it is still somewhat convincing. ??Furthermore, during the air show, China was promoting overwhelmingly that they had reached mutual recognition of the airworthiness of regional aircraft with the European Union. Later, news came out that they had reached a similar agreement with the United States. These two things played a decisive role in improving the confidence of foreign users. More importantly, although the price of MA60 is only slightly lower than that of ATR72, considering that China and Thailand are neighboring countries, after-sales service is definitely cheaper and more convenient than ATR. ?As a result, Bangkok Airways board of directors finally decided by one vote to give this new model a chance. For China, this purchasing intention from Thailand is a complete surprise. ??Although Chang Haonan has reached mutual recognition agreements with Europe and the United States on the airworthiness of regional aircraft through some showy maneuvers, even he himself actually has the idea of ????fighting for the future. Passenger aircraft still need a bit of word-of-mouth accumulation. At least in the first two or three years, domestic airlines were still the main operators. Chang Haonan has even thought about integrating several airlines that are relatively suitable for operating short-distance regional aircraft, such as Beijiang Airlines and Qian Airlines, into United Airlines in the airline integration plan that will be submitted soon, even if it is a loss. We will continue to operate MA60. As a result, domestic users have not yet arrived, and the first ones to come to our door are foreign customers. ?Its no wonder that general manager Gao Quan has put down many things and still has to personally take charge of the reception. 6 aircraft are just small shrimps for Boeing and Airbus, but for China Aviation Industry, it is a complete milestone. Can I go inside the cabin and have a look? ?Jongjit raised his head and glanced at the fuselage. The Chinese people specially painted this prototype with their company''s livery, which is undoubtedly a sign of sincerity. Of course, come this way, the ramp truck will be here soon. Gao Quan was obviously prepared. He picked up the walkie-talkie and said a few words, and a ramp car slowly drove over from a short distance away. Due to the limitations of the original structure, the cabin doors on both sides of the MA-60 are set at the tail, making it shorter than the other two regional turboprop airliners. Even passengers with a height of about 1.7 meters need to bend down. Go in. It can be regarded as a minor disadvantage. ?However, the environment inside the cabin made Jonjit quickly forget about the slight discomfort just now. (End of this chapter) Chapter 437 Quiet turboprop airliner (10,000 per day, please give me a monthly ticket) Chapter 437: The Quiet Turboprop Passenger Plane (10,000 per day, please give me a monthly ticket) ??For this kind of turboprop regional airliner with dozens of seats, the cabin must be all economy class, and there wont be much trouble. ??And because like the ATR series aircraft, Italians are responsible for the interior comfort design, the style layout even gives Jonjit an inexplicable sense of familiarity. ?Having worked for Bangkok Airways for more than ten years, he felt as if he was coming home as soon as he got on the plane. ?However, after adapting to the light in the cabin and taking two steps forward, he quickly noticed the difference between this aircraft and the ATR72. Just when he turned around to find the interpreter who was accompanying him to ask, Gao Quan who came up behind him had already given an explanation in time. Because the cross-sectional shape of the original design of the aircraft is different, the cabin of our MA60 is slightly shorter but wider than aircraft of the same class. If compared with the ATR72, the height has dropped by 8 cm, but the width has increased by 12 cm. , so every seat we customized is wider, as well as the aisle in the middle. In fact, most passengers have little awareness of cabin height. The cabin height of ATR72 is 2 meters, while that of MA60 is 1.92 meters. For most passengers, especially Asian passengers, there is not much difference. But the width is different. Since the basic width of economy class seats is generally small, it is just right for most normal-sized passengers. Therefore, even if it is only 1-2 cm wider on this basis, it will bring a very obvious riding experience. improvements. The experienced Jonjit just discovered this difference. He directly found a seat in the middle of the cabin and sat down. For most turboprop airliners, this is the place where the riding experience is the worstdue to the close proximity to the propellers, the noise and vibrations felt are extremely exaggerated. ??Of course it is impossible to do business on a casual basis, so Gao Quan and his party followed and sat around Jonjit. The comfort of the seat is really good. As a veteran, Jonjit naturally knew that it was best not to praise the seller''s products casually at this time, but he also had to admit that compared to the small bench-like seats on ordinary regional airliners, the one under his **** was much more comfortable. At least let him rest in place for a while. The comfort-related configurations in our cabin, including seats, lighting, and air conditioning, are all designed by Alenia Aerospace and purchased directly from Europe. The ride experience absolutely surpasses any competitor of the same level. ?This is very well said. To Jonjit, this sounded like an advantage of airplanes. But for Gao Quan, the whole person is a highlight. For passengers, the most direct perception is the cabin comfort configuration, but for him, the general manager of Haojing Aircraft Company, these things are obviously secondary. Although in order to achieve competitiveness in terms of fuel consumption and pollutant emissions, this aircraft still chooses engines imported from Pratt & Whitney for power, there is no doubt that the entire aircraft from overall design to production and manufacturing is completed in China. ??Italian partners only provided funds, the reputation of European companies and in-flight equipment that were not important to an "aircraft". Such a situation has never happened before in the history of Chinas aviation industry. After a while, we also arranged a test ride. ?Seeing that Jonjit had already shown some interest, Gao Quan stood by and struck while the iron was hot: As I just said, the MA 60 is more fuel-efficient than similar models. In addition to reducing operating costs, it also increases the range. Even with a full load of 60 passengers and 15kg of luggage per person, we can still achieve a range of 1,850 kilometers while retaining the standard fuel reserve, which should be an obvious advantage for your airline..." For such a user who almost fell from the sky, Gaoquan has naturally done enough homework. It is indeed a coincidence that thanks to the newly designed wings and propellers, the MA60s range is stuck at a very perfect distance. As an airline that only operates small regional aircraft, Bangkok Airways actually has only two main routes. One is from Bangkok to Chiang Mai, the one-way distance is 760km, and the second is from Bangkok to Phuket, the one-way distance is 840km. The fully loaded range of the ATR72-500 is 1650km. ??Flying to Phuket, you must refuel locally before returning. If flying to Chiang Mai encounters many passengers, air traffic control, or strong headwinds, you must also refuel. For a small airline like Bangkok Airways, the aviation fuel support service at the airport is also a big expense. If you can refuel at one less airport, you have to refuel at one less airport. The range of the MA60 can at least guarantee a worry-free round trip on the first route unless something unexpected happens. ?As expected, the lethality of this sentence to Jonjit is no less than the 8% fuel consumption just mentioned. Though these two things are essentially the same. Then wed better start as soon as possible? He is obviously no longer as calm as he was at the beginning. Mr. Jonjit, please be patient. Our pilots are already making pre-flight preparations and they will board the plane soon ?At this time, Gao Quan started to play hard to get, which made Jonjit feel as if he had been scratched by a cat. ?Finally, after tasting Chinese special snacks for the fourth time, the two pilots in white shirts finally boarded the plane from the cabin door, and then walked forward into the cockpit. While they are preparing, we can go to the cockpit door to take a look. ?Gao Quan stood up and took Jonjit to the front of the plane. Since there is no boarding gate for ordinary planes here, there are just two rows of ordinary seats. Why are the cockpit doors so complicated to design? ??The latter asked looking at a flight attendant next to him who was holding the door with his body. This is a special request from one of our engineers. The cockpit door will automatically close without additional force, and once it is locked from the inside, there is no way to open it from the outside. Gao Quan shrugged and explained: He said this would be more conducive to ensuring flight safety. Although I didnt quite understand it, he played an important role in the design of the entire aircraft, and we followed this suggestion. The engineer who made this request was naturally Chang Haonan. As for the reason...it goes without saying. In a few years, passenger aircraft around the world will be forced to retrofit cabin doors with this structure, and someone will thank him then. As a businessman with a non-technical background, Jonjit doesnt really understand the joysticks, instrument panels and displays in the aircraft cockpit, but at least in terms of look and feel, it is not much different from other regional airliners. After all, the full LCD cockpit these days is not luxurious enough to be installed on such a small regional aircraft, so except for the three multi-function displays, most of the space is still occupied by various dials. With a roaring sound from the turbine and a shaking that could be felt throughout the aircraft, but not serious, the pilot started the two engines one after another through the air source provided by the APU. In the absence of additional energy supply from the ground, MA-60 can cold start on its own, but due to insufficient air supply, only one engine can be started at a time. This is another amount of money that can be saved for the airlines. Lets go back to the cabin and well start taxiing soon. After Gao Quan finished speaking, he signaled the flight attendant to close the cockpit door and took Jonjit back to his previous position. Outside the window, the propeller speed gradually increased. Chungjit habitually closed her eyes, preparing to endure the violent shaking and noise that followed. This is an inherent problem that turboprop engines cannot overcome, especially since he chose a location closest to the window. A few minutes later, the plane slowly began to taxi along the taxiway. ?Jungjit opened her eyes somewhat unexpectedly, and looked out the window at the propellers that were turning at high speed with a look of shock on her face. ?The noise and vibration control of this aircraft is definitely incomparable to that of a turbofan airliner, but in a propeller aircraft, it is unexpectedly perfect! (End of this chapter) Chapter 438 A milestone for Chinas civil aviation industry! Chapter 438 A milestone in Chinas civil aviation industry! Within a few minutes, the plane entered the runway smoothly from the taxiway, then gradually accelerated, raised its head, and took off... ??Apart from the slight discomfort during the climb, until entering level flight, Jonjit did not feel the sharp noise in his memory that made his eardrums burst. The low roar is of course unavoidable, but in terms of intuitive experience it is more than half better. Is the cabin soundproofed well? Naturally, his first thought was to lean over and touch the inner wall of the cabin next to him. ?It is naturally impossible to figure out one or two of them. Even if any black technology is used on the aircraft body, it must be placed in the outer hard shell or the middle sandwich. The inner lining, including the inner porthole glass, will in many cases even be classified into the category of "decorative materials". Mr. Jungjit, did we have a good flight experience? Gao Quan saw Qiongjits novel reaction as if Grandma Liu had entered the Grand View Garden, and knew that the latter was shocked by the noise level in the cabin. In fact, even he thought there was something wrong with his hearing during the first test flight of the MA-60 No. 03 full-state prototype... The Yun-7 aircraft was originally produced in Haojing. Before he was transferred to an administrative position, he was responsible for some technical work of this model, and he often flew on the old Yun-7 when he was on business trips. Naturally, he knew this. What will it be like when a normal turboprop airliner is flying, especially when the engine is at full output during takeoff and climb. ?However, even when he was standing not far outside the wing, he did not feel the extremely uncomfortable roar. Ahthisis really good. Jonjit also realized that her performance just now was a bit embarrassing, and quickly returned to her original state. However, after a few seconds, she still couldn''t help her curiosity and asked: Did you use any special sound insulation materials on the fuselage of the aircraft? Finally, when this issue was raised, I certainly understood what the other party was worried about. As a representative of the airline company, although he was surprised by the quietness of the aircraft, if he had to choose between cost and cost, he would choose the latter without hesitation. All costs will eventually be passed on to passengers. Those who will take regional airlines like them are price-sensitive customers, and it is absolutely impossible to accept a fare increase for the comfort of a one-and-a-half-hour journey. So his first words dispelled Jungjit''s concerns. In terms of fuselage structure and materials, like most passenger aircraft around the world, we use ordinary additional honeycomb sandwich structure sound insulation materials, which will not bring additional costs and maintenance difficulties. The latter was indeed relieved. Increasing comfort without increasing costs is of course a 100% good thing. Following that, Gao Quancai continued to explain: "For several other typical turboprop airliners on the market, the peak noise in the cabin during level flight, that is, the noise at our current location, is around 80 decibels, and may reach over 85 decibels during takeoff. Considering this data alone, it is actually It is not larger than a passenger plane using a turbofan engine, but the noise frequency of a turboprop engine is wider. It is the mid- and low-frequency parts that can easily cause serious discomfort to the human body. However, general sound insulation materials can only filter high-frequency noise, so passengers The ride experience is very poor. "Our aircraft uses a bionic propeller design, combined with some other control methods, which can reduce the noise peak by 2-3 decibels, and focus on reducing the mid-to-low frequencies. As for the effect, I would like to ask Mr. Qiongjit Already experienced it. What is the creature? The word "bionics" was too outrageous for the Thai translator who was only temporarily pulled over, so it had to be translated into English. However, Reggit was obviously not familiar with such a very common noun, and just understood the first sentence. bio-root word. "Oh, there is a comb structure similar to owl feathers designed on the outer leading edge of the propeller, which can significantly weaken the fan''s broadband noise below 2kHz. If you are interested, you can take a closer look when you get off the plane. Look at our propeller design. ??The design of this comb structure needs to be very delicate, and it also needs to be adapted to the propeller and the engine itself, which is not easy to learn. ??And Reggit is just a professional manager of an airline company. More importantly, the leading edge of this comb tooth structure will actually affect the efficiency of the propeller, so it cannot be fully optimized according to the silent requirements. If you just copy an almost similar one, the overall performance may be counterproductive. In fact, what really reduced the noise of this aircraft was the part that Gao Quan was vague about just now ?After Chang Haonan developed the logic of active wing flutter control, he quickly began to consider how to extend related ideas to other fields. As we all know, vibration and noise are essentially the same thing. Since the wing flutter data can be collected and then controlled by actively applying vibrations of different phases, more regular sound waves can naturally be followed accordingly. That is the logic of active noise reduction. In fact, 606 has researched similar technologies in the past. They once tried to use active noise control based on speaker arrays on Yun 7, which is the set found in many luxury cars in later generations. The effect is outstanding and can reduce the noise by an astonishing 13%. -22 decibels. However, the cost of this set of equipment is sky-high, and its weight and power consumption are also quite exaggerated, which will even directly affect the basic performance of the aircraft. In the end, it had to be abandoned. Chang Haonan, however, adopted another approach. Although it also has active noise reduction, he did not install additional audio equipment. Instead, he maintained a certain phase angle difference between the two propellers of the aircraft to mutually reduce the noise of the propeller on the other side. In fact, the initially completed phase angle control algorithm even included the function of automatically calculating the optimal phase angle difference based on the aircraft''s different flight altitudes and speeds, which can achieve optimal noise control under almost all flight conditions. But the PW127J engine is really holding it back. ? It is basically a mechanical hydraulic control logic, and the control accuracy is not even as good as the AL31FN on the J-10. Fortunately, researchers from the 606 Institute later developed many new tricks for the electronic controller. Although it could only use a fixed synchronization phase angle difference, this advantage was enough compared to other competing products of this era. . ?Regittes performance just now is the best proof. To demonstrate the aircrafts range, the flight experience lasted nearly four hours. ?However, after getting off the plane, Reggit didn''t feel the tinnitus and dizziness that he was almost used to in the past. At most, it was just a bit of fatigue from normal flying. After the group returned to the car, Reggit, who had recovered from the shock just now, no longer had any reserve: Mr. Gao, we need you to provide a complete quotation and a specific delivery schedule. You know, this is a brand-new aircraft after all. The technical source of the MA-60 is actually the Y-7. Of course, the aircraft itself has been completely reborn, and the AN-24 has a mediocre international reputation. It is impossible for Haojing to have the brains to publicize the relationship between the two, so the new aircraft Zhou 60 is a brand new model on the market. Compared with sub-model upgrades such as the ATR72-500, the delivery cycle of new aircraft will undoubtedly cause some concerns. ?Especially for an airline as small as Bangkok Airways, missing a peak season business may be the difference between life and death. "No problem, but we need about two working days to prepare the documents in both languages. During this period, I think we can ask someone from our public relations department to take you around Haojing?" Gao Quan asked tentatively. ?This tour is naturally not a real tour. When doing business, even if it is a seemingly high-end business like selling airplanes, it cannot do without the down-to-earth part. In addition to producing excellent products, we still have to work hard in other aspects. Of course, Ragit is by no means a white lotus. It is better to say that he is waiting for this part. Okay, then I will take advantage of this time to have an in-depth experience of the history of Chinese civilization On the surface, words should be spoken in a high-sounding way. Gao Quan, who was sitting in the next row, secretly clenched his fists in excitement. ?Although Reggit did not make a clear position, it is obviously a sure thing that things have reached this point. ?As long as this business deal can be signed, his name Gao Quan will definitely remain in the history of the development of China''s aviation industry. ??Although this is not the first time China has exported civil aircraft - about ten years ago, Bingcheng Aircraft Company exported two Y-12 transport aircraft to Sri Lanka. But the meanings of the two things are obviously different. On the one hand, the Y-12 is, after all, just a small general aviation aircraft, and the qualifications required to operate it are completely different from operating a serious passenger aircraft. On the other hand, MA60 is also the first model designed, manufactured and certified by China using the new CAAC standards. It can be regarded as a milestone in Chinas aviation industry. (End of this chapter) Chapter 439 The fate of An 70 Chapter 439 An 70s fate ?Perhaps its because the ship is small and easy to turn around, but Bangkok Airways efficiency is far beyond almost everyones imagination. ?After Haojing provided the quotation and delivery guarantee required by Regit, they almost immediately sent another higher-level team over, led by the general manager himself. ?This team once again experienced the entire flight process of the MA-60, and then after simple and even hasty negotiations, they signed an order contract with additional conditions. The main thing is that in this matter, both sides feel that they have taken advantage of it. For Bangkok Airways, they can purchase an aircraft with all-around performance exceeding the ATR72-500 at a similar price and with lower follow-up maintenance costs. In addition, the additional terms also stated that if the first aircraft cannot be delivered on time, they can get a full refund and a liquidated damages, with almost no risk. For China Aviation Industry Corporation, this customer who fell from the sky was a complete surprise. You must know that even Beijiang Airlines, which was previously considered the most likely to purchase the MA-60, has not yet signed an actual order. Since you are picking up money, you dont care whether you pick up more or less. So, everyone was happy. ?However, if some people are happy, others will naturally be sad. Six time zones away ? Alexander Chulsky is sitting a little stiffly in the office of Anatoly Kuritsyn, the general director of the Ivchenko-Progressive Design Bureau. Even though he has lived here since he can remember, today is indeed the first time he has walked into the core building of this design bureau. ?About ten days ago, that is, on the day that Chulsky had just received his salary, he accidentally heard the news that an inconspicuous but smart person needed to be sent to Kiev on a business trip. ?This made him think a lot. ??Although he has never engaged in any other profession except carpentry and has not attended university, Chulsky is relatively confident in his brain. If it were left in the past, he would definitely not be interested in work like a business trip. Not to mention the long train ride. With the current financial situation of Ivchenko-Progressive Design Bureau, it may be difficult to provide sufficient reimbursement funds. . ?The big city is certainly prosperous, but everything has nothing to do with his empty pockets. At least you can enjoy one free lunch every day while staying in the design bureau. But things were different that day. On the one hand, it was because wages had just been paid, indicating that the bureau had some money, and on the other hand, it was because a lot of rumors had just been heard from Ivanov. ??It was like opening the door to a new world for him. Especially the part related to the Chinese people. It is said that those who came from the east would carry dollars in sacks and buy anything they were interested in. ??Chulsky will certainly not take this exaggerated statement completely seriously, but since there are such rumors, I am afraid they are not groundless. At least, judging from the fact that the design bureau was suddenly able to issue wages, it should be true that China has money. So he used some connections to make himself a candidate for a business trip to Kiev. In fact, the task assigned to him by the leadership of the design bureau was surprisingly simple. ?Although the situation of Antonov Company is better, it is also from the corporate level. At most, the treatment of key personnel can be slightly guaranteed, and the lives of the vast majority of low-level cows and horses will not be any different. ?So he just wandered around the other party for a few times and learned a lot of useful information through a few meals. Some people said that they had seen many Germans in the company who came to discuss business... The manufacturing of the second prototype has come to an end, and now it is just waiting for the final debugging and the four D27 engines to be put in place before it can make its first flight again... ?Some people also saw many Chinese people coming and going frequently... In short, there are all kinds of true and false rumors flying all over the sky, and many of the statements, and even many people''s own statements, are inconsistent. ?However, one thing is for sure. The An-70 project is definitely not bad, and it is still moving forward according to the plan. ??Originally, Chulsky could return to Zaporozhye when he got here, but after all the trouble, he finally got a chance to escape at public expense, so naturally he had to do some things of his own. So he directly made up an identity for himself as "an engineer assigned by the Ivchenko Design Bureau to the Antonov Company responsible for aviation power matching", and then often wandered around Grushevsky Street where the number of foreigners was relatively dense. . ??This identity is half-true and half-false, and highly deceptive. His work certificate is genuine, and he has lived and worked in the design bureau for more than 20 years. All details are flawless. Although his job title is listed on his ID card, Chulsky ventured to guess that the vast majority of second-tier dealers who come to Kiev to do business cannot understand Russian. He bet was right. After a few days, he actually came into contact with a businessman with an Asian face, and they even left each other''s contact information. The other party expressed that he is interested in all industrial products. If there are relevant channels, you can contact him. Transactions are in US dollars. ?This made him excited for several days, although he couldn''t think of anything he could offer to the other party for a while. ?However, Chulsky felt that Zaporozhye, as an important industrial base of the past alliance, would always have opportunities as long as he paid attention. ?However, the good times did not last long. Now, the gloomy expression of his general manager made him wonder whether it was known that he was using public funds for private affairs outside... That Asians dollar is still a castle in the air after all. If he is kicked out of the design bureau or even thrown into jail... ?Chulsky was a little afraid to continue thinking about it. He could only force himself to calm down and tell what he saw and heard in Kiev during this period: Based on the information I gathered from Antonovs grassroots employees, An70 should still be under normal development... ?Somewhat strangely, although the task of sending Chulsky to Kiev was personally given by Kuritsyn, he seemed a little absent-minded about it today. "General manager?" The former, who had not received a response for a long time, couldn''t stand it any longer, so he simply called out. ? ?Stretching out one''s head is the same as shrinking one''s head. He thought that he should give himself a happy life. "oh" Kuritsyn, who finally came to his senses, did not ask any further questions, but just nodded: Your observation is very accurate, very good. Go to the finance department and get the business trip allowance. "ah?" Chulsky, who thought he was about to die, was stunned for a moment, and then realized that the other party obviously knew nothing about what he was doing in Kiev: Oh, okay...okay. ?Kuritsyn waved his hand impatiently, indicating that he could leave. ?After sending Chulsky away, the former let out a long sigh, lowered his head and opened the drawer in front of him, and took out a document from it. The above is the decision from the Board of Directors of Motorsic Group. ?The design bureau and manufacturing plant are required to devote all their efforts to the research and development of the AL460S engine and cooperate with the technical personnel of Oran to complete the development of the DA450 aircraft. Now, our sin will be huge... ??Kuritsyn muttered to himself sadly. Investing all manpower and funds into the development of a new model will inevitably affect the further improvement of the D27 engine. This propeller fan engine with a peculiar principle can be said to be the core of the entire An70 project. ?At this critical juncture, if the power system is delayed for a few years, we dont know what changes will happen. Although the An-70 has excellent performance, it has never been the only choice for potential customers. The Germans can turn around and participate in the A400M, and China can continue to introduce the IL-76, or even cooperate with Ilyushin or Tupolev to produce its own Large transport aircraft. As a result, the Motor Sic Group itself is not the only one who will be affected. Antonov, and even the revival of the countrys aviation industry as a whole, will suffer a major blow. This move is completely a conspiracy. Even if the DA450 is developed, the market for general aviation and junior trainer aircraft will not be able to bring huge profits. It will not die immediately if it takes another breath. What''s more, the plane itself is not very reliable. ?Thinking of this, Kuritsen suddenly felt a deep sense of powerlessness. ?Belayev had already seen something was wrong with the Austrian Diamond Company before, but it was of no use. He has seen clearly that everyone from the company''s board of directors to Minister Ribiazin of the Ministry of Industry is on the opposite side of him. To say that this group of people did not receive any benefits from Arcane, I would not even believe it. ܧѧҧݧէ Kuritsen, who has always been well-educated, said a curse word: The enemy is in the Verkhovna Rada (End of this chapter) Chapter 440 The dawn of machinery manufacturing Chapter 440: The Dawn of Machinery Manufacturing Industry At the same time, here at Beijing Hang University. ?Chang Haonans research on high-speed rolling bearings has also entered the most critical stage. For him, if he really just wants to design a single bearing product, whether it is for turbofan 9 or turbofan 10, it is actually not difficult. ?? I completed the scattered things during this period, and once again saved about 300 scientific research points, which was enough to complete a mere bearing design project. But now Chang Haonan no longer has this ambition. ? ? When I was first reborn, I had no choice but to spend scientific research points on specific projects. After all, if I dont have some concrete and persuasive achievements, I cant just rely on words to persuade others to change the direction of national-level policies ?Even if he had full points in the Talking Skill, he had no way to speak at that time. However, that was then, and now is now. Now that Chang Haonan has the ability to influence the direction of the industry, his perspective on things must be different. ?The reason why he wanted to bring together several top research groups engaged in high-speed bearing research in the Science and Technology Commission system was not only to speed up the research progress, but also to prepare to promote the level of the entire industry. Even with TORC Multiphysics, a tool whose computational efficiency is an order of magnitude higher than in the past, to achieve this goal, the data obtained during the research process is more important than the results. Mr. Chang! The first batch of experimental results have come out! ??A young man wearing blue overalls and goggles quickly walked up to Chang Haonan, who was looking at a table on a row of bearings in front of him. Zhang Jing, a doctoral student in Wang Qinlis research group. He is similar in age to Chang Haonan, and if I have to say, he is even several years older than the latter. When he was first asked by his mentor to work on a project in Beijing, his original intention was to refuse. For graduate students, especially graduate students in this era, business travel is definitely a chore. The helpless man had to lower his head under the eaves, and was finally dragged over by Wang Qinli. ?However, after seeing Chang Haonan''s research efficiency before and understanding the research topics they would be responsible for next, he quickly became very enthusiastic and devoted himself to the assigned work. ?After this period of time, if I hadnt still recited some of the ancestral precepts of respecting teachers and respecting Taoism, I would have forgotten Wang Qinli. The experiment he mentioned was Chang Haonan''s concentrated test of his achievements during this period. Lets go and have a look. Chang Haonan put down the form in his hand, inserted the pen into the breast pocket of his lab coat, and strode to another room not far away. ?There, a dozen pieces of equipment that were rotating at high speed were making a low roar. Although the experiment has ended, it is obviously impossible for the equipment under high-speed rotation to stop immediately from 15,000 rpm, so the bearings under test still need to wait for a while before they can be taken out. ?However, the shock and vibration data recorded during the entire process can still be viewed. ?Chang Haonan went straight to the computer with the No. 1 logo on it. Several professors responsible for different research contents, including Wang Qinli and Zhang Qinggang, consciously gave him a position with the best angle. "Mr. Chang, according to the recorded data results, the RMS amplitude of the rotor acceleration signal before maneuvering flight is 0.1190m/s^2, and the RMS amplitude during maneuvering flight is 0.1957m/s^2, with an increase of 64.45 %; the RMS amplitude of the bearing contact force pulse signal before maneuvering flight is 19.5124N, and the RMS amplitude during maneuvering flight is 37.4275N, an increase of 91.81%, which is very close to the prediction result of your improved mathematical model. Comprehensive The error is within 8%. ?Wang Qinlis voice was trembling when he reported the results. You must know that the model he improved on the Jones model before can control the prediction error of the dynamic performance of low-speed bearings under normal operating conditions to about 15%. ?This has made Wang Qinli feel that he can leave his name in the field of mechanical processing, and he even considered naming it Qinli Model. ?However, it only took Chang Haonan less than half a month to raise the accuracy to a new level? Zhang Qinggang next to him had completely forgotten that there were other people around him, almost holding the screen and muttering to himself: Its so accurate, its so accurate... For an engineering model, this accuracy is indeed almost a dream. However, Chang Haonan was not surprised by this. In fact, when everyone had the first meeting, the idea proposed by Wang Qinli was already quite forward-looking, and he made some modifications on it, including assembly interference, Taking into account several factors such as temperature differences and external maneuvering overloads that were previously difficult to calculate due to strong non-linearity, it is obvious that the accuracy has been greatly improved. ?After looking at the data on several computers in succession, everyones attention has shifted to the experimental equipment not far away. In fact, the dozen or so pieces of equipment that are decelerating next to them have been running continuously for hundreds of hours. ??For the life equivalent accelerated test, these bearings have also reached the end of their life. This can be seen from the fact that the data recorded on the computer have obvious abnormalities compared with the steady-state operation. The bearings tested in each piece of equipment are specially designed with typical structural parameters. According to Chang Haonan''s calculations before the experiment, each of them will correspond to different failure modes. The prediction of dynamic performance is only a small part of the content. The final test is whether the calculation of the bearing failure mode can correspond to the actual situation. If it can, it can directly bring China''s bearing industry and even the entire machinery manufacturing industry into a new era. An era where overtaking on a straight road is possible! Although this process may not be completed in three or two years. But for Chinese researchers, difficulty has never been a problem. The problem is that there was no hope in the past. Better products from others mean more users, and more users means more and more valuable data is generated, and this data can be fed back to further optimize products. Basically all high-end industries meet this virtuous cycle model. ?In this case, if you want to achieve transcendence, you must either wait for major changes in the external environment, or simply change the track. What Chang Haonan did was completely unreasonable and broke this cycle. With a better algorithm framework, the amount of data I need to optimize the product may be only one-tenth of yours or even lower, so the gameplay is different. Soon, more than a dozen experimental equipment stopped operating one after another. After another period of cooling, the operator in charge of the experiment took out the bearings one by one. No. 1 bearing, according to calculations, the maximum contact stress during operation is 2500Mpa, and the maximum shear stress of the subsurface layer is about 125m from the surface. The failure mode is speculated to be fatigue spalling originating from the subsurface layer. Chang Haonan can already repeat the calculation results of each bearing without even looking at the labels on the equipment. Yes, the peeling area is about 50mm15mm, the subsurface butterfly-shaped structure is about 105~129m from the raceway surface, and the maximum length is about 40m The No. 2 bearing has a maximum dn value of 2.38106mmr/min during operation, and the instantaneous temperature in the contact area reaches over 300C. The failure mode is presumed to be the fracture of the bearing ring and cage. No. 3 bearing, bearing raceway and cage surface wear failure No. 4 No. 16, pitting corrosion failure originated from the bearing raceway surface After Chang Haonan reported the malfunction of the last experimental subject, there was no other sound in the entire laboratory except the hum generated by the operation of the computer mainframe. What was the result? After a few seconds of silence, Chang Haonan turned around and looked at the dozens of people in front of him. ?Zhang Jing held an experiment record book in his hand. At the end of each line of content, there was a check mark. It all matches! (End of this chapter) Chapter 441 A proud day! Chapter 441 A proud day! After what seemed like a long period of time, the second person reacted: "Mr. Chang, is this... a success?" At this point, Chang Haonan couldn''t help but smile. At the same time, he took out the ballpoint pen from his pocket, clicked the pen tip out, and signed his name with a few strokes at the end of the test record. After doing this, he raised his head again: What if? ?Those who can stand here, including operators, are professionals in the industry. The reason why I asked this question just now is of course not because I dont understand the experimental results, but simply... its unbelievable. A bearing may fail in various ways when faced with different working conditions. Even under the same working conditions, different faults and damage may sometimes occur due to production consistency issues. Before today, no one had even thought of using theoretical means to calculate and predict the working conditions of a bearing during its entire life cycle, because it seemed too complicated to start with. But Chang Haonan did it. Not only did it happen, it was successful. Therefore, after receiving the affirmation from his rightful owner, the crowd in the laboratory finally burst into cheers. People from twenty to fifty years old, from master students to professors, hugged each other one after another, or raised their arms and shouted. As a country that completely missed the first two industrial revolutions, machinery manufacturing has actually always been one of China''s biggest shortcomings in the field of science and technology. However, due to its high reliance on experience, it is almost the most difficult field to catch up. . ?This has resulted in China''s machinery field being in a low-end repetitive cycle of lagging behind - catching up - and continuing to lag behind for a long time. Compared with IT or finance, the manufacturing industry is inherently a "hard-working" industry with huge investments and a long recovery cycle, and a large share of the already low profits has to be taken away by countries such as Europe and the United States, leaving it to the domestic market. For enterprises, it can only be considered a mouthful at best. In the era of market economy, if you cant make money, people naturally have little enthusiasm. As the industry is like this, the situation in the research field is naturally not much better. You can neither make much money nor publish high-impact papers. To a certain extent, it is not even as easy as the four major tiankeng majors in materials, chemistry, biomass, and environment in the futureat least the water thesis is easy. Over time, the entire machinery field, both on the production side and on the R&D side, has become the lower reaches of the industrys contempt chain. As practitioners, they could only accept this status quo in the past, but that does not mean they are willing to accept this status quo. No one is not looking forward to a day when they and the entire industry can be proud. ? ?No one doesnt want to be able to make most of the profits from end products by selling only some key components like Europe and the United States. ?This is not to mention that most of the Western blockade and embargo lists against China involve technology or equipment in the field of machinery manufacturing. Even some products that are allowed to be exported to China are downgraded versions with limited functions. ?This is blatant discrimination, but in the past, we just couldn''t do anything to each other. If you fall behind, you will be beaten. This saying is not only valid on the battlefield. Today is the day when the counterattack horn sounds. Mr. Chang, with this technology, does it mean that our bearings will never face unexpected failures in the future? ?An old technician responsible for experimental operation and bearing maintenance happened to be standing near Chang Haonan, smoothed his half-white hair and asked the latter. What I study is science, not magic. Of course, I cant do it to this extent. After the cheers of the crowd subsided, Chang Haonan explained half-jokingly: Our sixteen bearings were carefully selected after leaving the factory, and were measured with special high-precision data before the experiment, so we can obtain very accurate calculation results. "If it is an industrial product, it is obviously impossible for everyone to operate in this way. In addition, during use, there may be unexpected problems that are difficult to predict, such as foreign objects or misoperation. In short, the reality is very complicated. To say 100% Its accurate, no one can guarantee it. In fact, this principle is similar to the previous active anti-asthma system for aviation engines. ?No matter how magical your function is, you can''t withstand the collision of birds in the air. ? As a veteran who is only 24 years old but has 26 years of scientific research experience, Chang Haonan knows one thing very well, that is, you never know what tricks users will play with your equipment.??????But nothing. He then added another sentence: As long as no accidents occur, to be modest, I think 95% prediction accuracy can still be guaranteed. The surrounding crowd burst into warm applause again. Predicting how bearings will be damaged actually doesnt make much sense to end users. Once its broken, its broken. Its no longer usable anyway. It needs to be repaired or replaced with a new one. Secondly, you cannot expect end users to have experts who specialize in this area. An excellent Party B must acquiesce that Party A is a fool. But for manufacturers who develop and manufacture bearings, it is simply a **** among gods. This means that as long as they get the accurate parameters and operating conditions of a bearing, they can predict whether it meets the needs of the target usage scenario, and the product development cycle will be greatly shortened. ? It will also promote the more upstream metallurgy and precision instrument fields. ?Furthermore, if you can combine some optimization algorithms, you can even reverse this process - After obtaining the usage scenario requirements provided by Party A, reasonable parameters, or at least a reasonable parameter range, can be obtained directly through calculation. Directly changing the rules of the game for the entire industry. ??Its just that to achieve the latter, a large amount of data accumulation and algorithm optimization are required. This cannot be done in the laboratory. They can only get 16 sets of experimental data in one hundred hours, which is not as good as that of large bearing manufacturers. After the short celebration, Wang Qinli first returned to the topic: Mr. Chang, the next step is to determine the parameters of the new bearing based on the technical data provided by the Aviation Industry 430 Factory? According to Chang Haonan''s plan, the first model to use the new bearings should be turbofan 9. This has also been established a long time ago. High-thrust turbofan engines not only face design difficulties, but also need to use many new processes and materials. ? If you wait until the design work is complete to start testing, you will not only delay the progress, but also accumulate risks by stacking too many new things together to try out. Chang Haonan can indeed make new technologies reliable by his own ability, but it is impossible and not good for him to drive screws himself, so the process of turning paper content into actual products will still produce uncontrollable factors. It is still necessary to find a relatively mature model first. ?However, at this point, there is still a gap between Chang Haonans goal of increasing bearing life by more than 10 times. Although others are already very satisfied with the current test results, he did not say it casually. Bearing parameters are only one aspect, this matter can be handled by you. Chang Haonan said as he looked at the dozen test bearings lined up at the inspection station next to him: I want to put my energy into material research and development. A group of people looked at each other in shock after hearing this. Do you still understand this? A somewhat high emotional intelligence question was blurted out by Zhang Jing. Chang Haonan put his hands behind his back and shook his head gently: I cant say I understand it, Im just a little interested. (End of this chapter) Chapter 442 Breaking through high-end resistance Chapter 442: Breaking through the high-end resistance Although he said he would focus on materials, it was obviously impossible for Chang Haonan to contact materials research and development personnel across the country. The research direction of high-speed bearings is an unpopular one. There are not many research groups working on it in the country, and there are only a few at the forefront, and they happen to be concentrated in a few universities under the Science and Technology Commission system. Put together It''s easy to hold a meeting. But materials, even relatively unpopular metal materials, definitely belong to prominent science (easy articles). There are so many researchers. Even some scholars who are not originally in the field of materials science will join in the fun just to publish a few more papers. If they are published in batches By holding meetings for them, Chang Haonan probably won''t have to do anything else in the next few years. ? Even if we focus on the industrial end of metallurgy, the number of domestic steel plants... You have no idea which steel mill has done something weird in which segment. It is impossible to carry out a large-scale industrial survey in 1997. Before the information age, doing this kind of hard work, the manpower and material resources mobilized, and the various twists and turns that may be involved were enough to cause the entire industry to go into chaos or even come to a halt. At this time, we must learn to grasp the key contradictions. In the entire bearing industry chain, the most concentrated part in China is actually the bearing manufacturers themselves. The only three companies that can produce relatively high-end bearing products are Hazhou, Luoyang and Wa. That is, Bingcheng Bearing Group, Luoyi Bearing Group and Fuzhou Bearing Group. They are all established companies in the industry and have close ties with the upstream machine tool, metallurgy, and precision instrument industries, as well as many downstream manufacturing industries, especially the civilian manufacturing industry. This is important. As mentioned earlier, in order to further improve his theory and benefit end users from it, a large amount of data from the industry is required. But this kind of thing is easy to say, but there is a big problem in doing it. At present, Chinas high-end bearing localization rate is as low as 0. How can we get users to trust and start using domestically produced bearings? The Science and Technology Commission system can indeed provide some assistance, but the models and production capacity of aerospace rockets are ultimately limited, and the usage conditions they are intended for are too monotonous. ?For example, the core bearings of a turbofan engine are actually 5-6 sets, and they are highly similar between aircraft engines of the same type, so not much data can be provided. Compared with the civilian field, which has a wide variety of products and a huge market, the military industry has inherent shortcomings in this aspect. But the environment in the civil sector is much more complex. NTN, SKF, FAG and other foreign brands of high-end bearings have formed complete and solid market barriers. Whether from the perspective of stability or profit distribution, users will not easily choose to change suppliers. This is actually a problem that China faces in many fields High-end users dont care about cost-effectiveness at all. As long as they have performance and stability, once they form a habit of using it, they wont change it unless they have to. Price reductions and other means are completely useless. Even in the previous life, many industries in China, especially basic industries, would not have been so easy to develop if it had not been for the push from the king of understanding. So for now, we can only start slowly with state-owned enterprises. Considering that none of the three bearing groups are affiliated to the Science and Technology Commission system, and they had no business contact with Chang Haonan in the past, the latter finally decided to send a letter of inquiry in the name of the general manager of Torch Company. To his own surprise, all three inquiry letters were responded to on the same day. The content of the reply is basically the same Send someone to the capital immediately. Chang Haonan has never seen such an attitude and efficiency in his entire life. It went really smoothly beyond expectations Chang Haonan held three faxed reply letters in his hand, with a hint of surprise in his tone. "Of course. Although our company has not had direct business contact with them and does not belong to the same system, you are a member of the expert advisory group in important scientific frontier fields of the 973 Project. All domestic companies and institutions with some R&D capabilities, how can we You have to give me some face. Song Jingming, the office director who sent the reply letter, paid the right compliment: "Besides, this matter itself is of no harm to them. If I were the person in charge, I would definitely rush to do it, for fear that the other two companies would take advantage of it." "That''s right." Chang Haonan put the things in his hands aside and turned to look at Song Jingming: Then Lao Song, please go arrange the reception and the meeting. The specifications can be a little higher, but it must be as soon as possible. As the development of Torch Company gradually gets on the right track, other departments besides technology are also gradually enriched. Fortunately, the de-administrative reform of state-owned enterprises has not yet been completed, and even grassroots units can harvest wool from other places. Song Jingming was transferred from the General Office of the Science and Technology Commission. For this reason, I even upgraded him by half a level. ?Of course, because Chang Haonan is not planning to build a large and comprehensive company, many departments are still relatively thin. ?For example, there are only two people in the administrative office including Song Jingming, so many things require his own hands as the director. ? There is only one Yang Huimei in the marketing department. Fortunately, she has many graduate students under her, who can help share some unimportant work. It should be said that Song Jingmings guess is accurate. ?When Zhang Xu, the head of R&D from Bingcheng Bearing Group, walked into Chang Haonan''s office and found that his colleagues from Luoyi and Fuzhou were already sitting inside, his face turned pale at that time. ??If the other two families have secretly negotiated something while he was away, he will definitely not get any good results after he returns. You know, before departure, the general manager of Ice Axis Group specially called him to the office and repeatedly warned him that although the meeting was small in scale, it was of extremely high importance. The general manager Chang Haonan who presided over the meeting was young but regardless of his ability. The relationship is still very good. All the institutions and companies that had a relationship with this person in the past took off. To sum it up in one sentence, if you dont get any competitive technology when you go to the capital this time, then you should stay in the capital and never come back. In just a few seconds, Zhang Xu had already started thinking about how to find his next job. At this time, Chang Haonan cleared his throat: Since Zhang Gong has arrived, lets get started. I have several technical documents related to bearings here. Let the three of you take a look at them first to see if you are interested in this project. ?Chang Haonan motioned to Song Jingming to send the document to the three people sitting on the sofas on both sides. Zhang Xu''s expression finally softened a little. Judging from his posture, he shouldn''t have missed anything important. ?However, the relaxed mood did not last for a few seconds when he felt his heart suddenly shrink again after receiving the technical documents. The document begins as a series of performance requirements for bearings. As the R&D director, Zhang Xu can see the difficulty at a glance. High speeds of more than 30,000, operating temperatures of more than 250C, irregular and extremely high levels of external overload, coupled with life requirements of no less than 3,000 hours... In another situation, Zhang Xu would probably have asked why you didnt go to heaven? ?Of course, what he didnt know was that this bearing was really going to go to heaven. ?At the same time, the other two people also looked embarrassed. ?Although the three of them have their own strengths in specific fields, their overall levels are not much different. Problems that one finds difficult will not be easy for the other two. The first requirement is so difficult, what will happen next... With this thought in mind, Zhang Xu mustered up the courage to turn to the second page of the document... What the fuck? The second page is not another technical requirement, but the specific design of this bearing. In other words, Chang Haonan did not want to give them questions, but let them see the process of solving the problems. ?Then, the more he read this document, the more shocked Zhang Xu became. He finally understood why his general manager had to let him come on this trip. (End of this chapter) Chapter 443 Good shafts use good steel Chapter 443 Use good steel for a good shaft As a senior technician from a bearing company, Zhang Xu is naturally aware of the weight of the design document in his hand. Designing parts according to process requirements is a basic skill in the mechanical design profession. The group''s annual assessment of the ability level of technical personnel will have questions of similar nature. ?Of course, considering the time limit for answering the questions, the difficulty is definitely incomparable. In fact, if he was asked to lead a design team to do this job, it would probably take a few months to complete it. But what about the process in between... ?That will definitely require a lot of trial and error, iteration and optimization. ?However, there is no such content in the design document in front of me. Instead, it is one step at a time, setting the parameters at the beginning seemingly at random, and then finishing it logically until the end. guess what the result was? Hey, he really got it right! ?? And its perfect. ??If someone in the group ability level assessment saw someone hand in such an answer, Zhang Xu would most likely be directly judged as cheating. ?In this case, its either because you were lucky enough to choose the correct answer among the infinite possibilities with your eyes closed. ?The smoke coming out of the ancestral graves is not enough, the ancestral graves must be burned. ?Either you know the answer in advance and just write down the steps. In fact, even if they cheat, few people dare to do so blatantly, and it has to be done symbolically for a few rounds. However, the person who came up with this thing was Chang Haonan after all. ??They have already become famous in their own fields of study, so there is no need to travel thousands of miles to call these three little people over for fun. Zhang Xu raised his head and glanced at the other two colleagues next to him and across from him. From their expressions, Zhang Xu knew that everyone must be thinking the same thing now. I was very curious, but I didnt know how to speak for a while. Finally, it was Zheng Chaoqun, the technical director from Dual Axis, who first broke the silence. ?Fuzhou Bearing is the big brother of China''s bearing industry, and it has barely any relationship with Chang Haonan - the 16 sets of bearings used in the previous experiments were purchased from them. "Mr. Chang, although judging from the results, there should be no problem, the design method above is indeed not in line with our...even the habits of foreign companies..." Its okay if it doesnt match. ?Chang Haonan said something that was a bit difficult to pronounce. Then, while the three of them were still stunned, they asked again: You must have known about the TORC Multiphysics software launched by our company, right? I remember that your three names are on the trial list. ?The first person to react was Zhang Xu: "Of course, our group has recently been manufacturing a large-diameter tapered roller bearing for Shengjing Heavy Machinery Group, which is used in super-large hydraulic turbines. At that time, we used this software to do structural analysis of the entire equipment. Although it was a bit confusing when I first started using it. Its too customary, and many operations require command statements, but the effect is really good. Obviously, although it has not been long since the beta version was released, TORC Multiphysics, a revolutionary analysis tool, has already been applied in many industries. ? Its just that everyones current imagination is still somewhat insufficient, or we are still in the process of learning and adapting to new tools, and it is not yet time to tap into the potential. It is mainly used in the fields of fluid mechanics or structural mechanics analysis. Have you ever thought that the functions of TORCMultiphysics can also be applied in the field of mechanical design? For example, dynamic analysis of the working state of bearings? ?Chang Haonans words can be described as a sentence that awakens a person from a dream. "Mr. Chang means that we can also use this method..." Representative Luo Zhou, who had been silent just now, asked tentatively. ?However, the beautiful dream was quickly broken by Chang Haonan: Now, I can use this method to design, but you probably cant yet. "Well" "this" ?Zhang Xu and Zheng Chaoqun scratched their heads in embarrassment. ?However, we know our own business. The R&D personnel of these companies actually do not have a deep theoretical foundation. I am afraid that it is indeed difficult to do things like dynamic analysis. TORCHMultiphysics comes with sufficient custom interfaces, so in theory, as long as I provide you with an accurate dynamic model, you can indeed obtain the corresponding dynamic results through programming. Chang Haonan, who realized that he seemed to have hurt the other party''s self-confidence, quickly explained: But this requires users to have a high level of input and output of parameters, and once an error occurs, it can easily cause unexpected damage to the source program. In the worst case, we may even need to send engineers to do operation and maintenance for you. "but." Speaking of this, Chang Haonan lightly knocked on the table: I hope to isolate the entire dynamic analysis and calculation process step by step, encapsulate the core modeling and solving process and transfer it to the background processing, so as to form a relatively independent tool module, which can greatly meet the professional level requirements of users. reduce." Zhang Xu and the other three people suddenly showed expressions of surprise. ??If the bearing research and development work can be as easy and free as the design document in their hands now, then many problems can be solved easily. ?However, Chang Haonan changed the subject again: Of course, this requires a long process, especially a large amount of actual data to optimize different bearing types and working conditions. Now, all three people understood: So, Chang always hopes that we can take advantage of our size and provide this data? Zheng Chaoqun asked. Thats right, but its more than that. Chang Haonan nodded: "To make good bearings, it is not enough to have excellent structural design. Material handling, processing technology, even user service, and brand building must also be kept up with. After all, I am not from the machinery industry, and I have a lot of skills. For other projects, it is impossible to devote all your energy to these communication and liaison matters. For example, the bearing you just saw requires better bearing steel than M50 to produce it to achieve the performance I need. Better than the M50, its the M50NiL ??The topic finally entered a category that Zhang Xu is familiar with: At present, the domestically produced special steels for bearings are relatively good, including Xingcheng Special Steel, Northeast Special Steel, etc. Overseas, the ones we cooperate with most are Japans Chunakajima and Datong Steel "etc" ?Chang Haonan raised his hand to interrupt him: The application field of my bearing is rather...special, and I dont consider importing steel from abroad. Furthermore, even if the steel is imported from abroad, it still cannot meet my requirements. We must develop higher-performance bearing steel. Better than M50NiL? Zhang Xu was obviously shocked by this statement: M50NiL is already a new steel material that SKF has only developed in recent years. We have not yet conquered the surface treatment technology from M50 to M50NiL in China, but at least there is a general direction. If the requirements are higher than this..." ?He hesitated for a moment: Im afraid it will be difficult to get it out in a short time. Thisit doesnt matter. ?Chang Haonan leaned back on the chair with a calm look: "You just need to report my needs to the upstream industry. Although I don''t have much research on metal materials, I can still make some qualitative judgments on issues such as carburizing, nitriding, and guide surface wear. of." (End of this chapter) Chapter 444 Torch Company’s first big order Chapter 444 Torch Companys first big order ?With the help of the three major groups of Bingzhuo, Luozhou and Fuzhou, Xingcheng Special Steel and Northeast Special Steel soon sent representatives to the capital to meet with Chang Haonan. After some simple greetings, Chang Haonan got straight to the point: "You two, our Torch Company has developed a set of design methods for chemical heat treatment processes. However, metallurgy is an asset-heavy project after all, with a large investment and a long return period. Moreover, our company''s expected business scope does not include this industry, so we We hope that this method can be transferred to solve the problem of high-end bearing steel materials that we most urgently need at present. The reason why it is called "method" is because this research is still in a very preliminary stage. Apart from Chang Haonan himself, there are only a few researchers poached from the Institute of Computing Technology of the Academy of Sciences in charge, so there is no research yet. form a complete software. After finishing these words, the expressions and eyes of the two other people made Chang Haonan feel that if there were not three bearing groups as intermediaries and various official endorsements, he would be regarded as a charlatan. Mr. Chang, this ?Fang Manchang, the chief craftsman from Xingcheng Special Steel, hesitated to speak, but there were so many flaws that he didnt know where to start asking. Metallurgy is a bit like herbalism or alchemy in some fantasy works, at least in the late 1990s. Despite a rudimentary understanding of the role of individual elements in alloy compositions and the impact of various material processing processes on properties, in general the development of new recipes is still highly dependent on experience, luck, and alchemists. Its the craft of a metallurgical engineer After the birth of atomic absorption spectrometers and flame atomizers, it is no longer possible to keep the specific composition of materials confidential. As long as a sample is available, any undergraduate can analyze it in a few days or even hours. However, even with the exact same elemental formula, different processes will bring about completely different material properties. ?Just in the field of chemical heat treatment mentioned by Chang Haonan, the commonly used methods can be broadly divided into carburizing, nitriding, carbonitriding, nitrocarburizing, composite diffusion, and refined surface diffusion... If it is based on the state of the furnace infiltration agent or the ion generation pathway, there are other classification methods. Each technology also includes dozens to hundreds of process parameters, resulting in almost unlimited possibilities. ?This is the secret that every technology-leading country or company keeps secret. For example, anyone can find out by just looking for a process manual that the national standard number of M50 steel is 8Cr4Mo4V, while the national standard number of M50NiL steel is G13Cr4Mo4Ni4V, but this does not mean that anyone can smelt the latter. . In other words, it cannot be smelted completely up to standard. ?After M50NiL steel was first developed by the Swedish company SKF, many capable peers quickly followed up on relevant research. Although the steel produced in different countries can ultimately be said to be M50NiL, there are still differences in specific properties. Although the steel produced in Germany, Japan, the United States, the Soviet Union (Russia) and other countries may not be exactly the same as the original Swedish goods, in general they have their own strengths, or at least the difference is not big, and they are completely usable. can be substituted for each other. The M50NiL steel produced by countries with relatively weak technology is significantly different from the original product in one or more aspects, and some of its properties are even worse than the M50 before treatment. Unfortunately, China is among the latter. In previous lives, it was not until the second half of the 2010s that the bearing steel used in domestic third-generation engines was completely replaced by imports. Now, someone actually said that he has the ability to "design" a heat treatment process. The first reaction of the two experts responsible for the process was disbelief. It is normal. ?However, before Fang Manchang could organize his next words, his question was interrupted by Guo Zhanwen, who came from Northeast Special Steel next to him: I wonder if it would be inconvenient for Mr. Chang to introduce the principles of your design method? Fang Manchang, who was only halfway through his words, glanced at the latter with a slightly strange look. ?This question is a bit strange. For their industry, there is a huge gap between understanding the basic principles and industrial practice, and even if they are spoken out, it does not mean anything. The principle is very simple. Chang Haonan didnt care too much and explained directly: "The driving force of chemical heat treatment is the chemical potential gradient. At a certain temperature and kept for a period of time, the diffused elements are first enriched on the surface. When the diffusion concentration reaches a certain value, they will begin to diffuse from the surface to the center, and the outermost The first layer is the penetration layer, then the diffusion layer, and finally the matrix. The entire heat treatment process can be roughly divided into three stages: chemical penetration agent decomposition, adsorption and diffusion. " The three steps can be used to establish a prediction and control model for carbon concentration distribution in the infiltration layer based on chemical reaction thermodynamics and Ficks diffusion law to achieve process design and optimization. Thats all? ?Fang Manchang was waiting to continue listening, but Chang Haonan stopped here. "Of course it''s more than that... In fact, the most complete and accurate method in my expectation should be to directly conduct molecular simulations. For metals, it is actually atomic level simulation, and directly calculate the effects of different processing processes on metal material properties from the perspective of microscopic particles. However, with the current level of computers, it is far from possible, so I just mixed some molecular simulation ideas into it to make the entire chemical heat treatment process model more reasonable. " As for the specific technology... that is of course our companys trade secret. If I were willing to share it for free, there wouldnt be such a meeting today, right... Ohthats right Fang Manchang showed a somewhat embarrassed expression after being shouted back. Although Chang Haonans previous paragraph is sound and logical, it is still not convincing enough for people in the industry like him. But what they said later also makes sense - If I explain everything clearly to you, what business would you still do? ?But just when he was hesitating, Guo Zhanwen on the side had already skipped the intermediate steps: As expected of Mr. Chang, we have already heard about your ability and the level of your company. Then... when can we sign the contract? "ah?" "ah?" Let alone Fang Manchang, even Chang Haonan did not expect that the plot would take such a direction. ?He even prepared several calculation examples related to M50 steel in advance to enhance his persuasiveness, but now it seems... No need at all? Is trust between people so easy to achieve? You should also know that Chang Haonans asking price for this technology is 7.5 million yuan. For a technology that is not even a semi-finished product, although it is not considered sinister, it cannot be called cheap. ?His lowest psychological expectation was about 5 million, but he originally thought that there should be a bargaining process, so he must have quoted a higher price first. The result was of no use. As for Fang Manchang next to him, he was even more stunned. The special steel industry is not big to begin with, and there are basically no secrets in the industry. In addition, the level of domestic special steel is not very good. Compared with competition, there is more time for the industry to work together to keep warm, so each other basically knows each other''s situation. Northeast Special Steel was formed by the merger of the three original special steel companies of Dalian, Fushun and Beiman. It is much larger than Xingcheng Special Steel and has higher turnover. However, the profit situation is not optimistic. Among them, Dalian Special Steel has recently He had just been pulled back from the brink of bankruptcy, and it was far from like he could casually take out a huge sum of money. ??While taking a break during the meeting, Fang Manchang quickly used the excuse of going to the toilet and pulled Guo Zhanwen to a secluded corner. Are you going to spend the money like this? The two were college classmates before. Although they later entered different companies, they have always kept in touch and have a good relationship. "This is the intention of our company. No matter what, this money must be given." ??Guo Zhanwen lit a cigarette for himself and the other person: For the sake of our old classmates, Ill explain it to you. "At the end of last year, the country suddenly started to launch a precision manufacturing plan. Mr. Chang was the general consultant of the entire plan at that time. Our three steel mills also took this opportunity to apply for the completion of the reorganization and merger, which led to the current Northeast Special Steel. " Everyone in the industry knew this story, so Fang Manchang took a deep breath of cigarette, nodded, and motioned for the other party to continue. Two months ago, the country started working on the 973 plan again. Although I didnt see his name in the expert advisory group, guess what? I saw him again among the members of the expert advisory group in important scientific frontier fields. Is there such a thing? ?At this time, Fang Manchang also realized the seriousness of the matter. ??Although Xingcheng Special Steel also has a state-owned background, it is not a state-owned enterprise in the complete sense after all, and it is still not well-informed in all aspects. ?Guo Zhanwen finally concluded: "This Mr. Chang, regardless of whether he has great ability or great connections, in short, he can speak to both the Science and Technology Committee and the Science and Technology Committee. Currently, he can be related to two cutting-edge research projects. At this juncture, the company he manages wants to sell us a set of process design methods. How dare you say you dont want to buy it? " "I" Obviously, Fang Manchang knew what his old classmate said made sense. But he did not have such high authority before coming: I have to contact the company before I can decide... 7.5 million, which is equivalent to our profit in the first half of last year, and we will have to wait until the afternoon at the earliest..." "I can''t wait for you anymore. The company requires me not to show any hesitation. I advise you to act quickly..." ??Guo Zhanwen shook his head, threw the finished cigarette **** into the sink next to him, turned around and walked back towards the conference room. Looking at his back, Fang Manchang gritted his teeth and trotted towards a public phone outside... (End of this chapter) Chapter 445 Its really useful? Chapter 445 is really useful? ?The first big order of Torch Company was made somewhat inexplicably. Prior to this, Chang Haonan had even informed Yang Huimei to be prepared for longer-term negotiations. As a result, there was no negotiation at all. The previous TORCMultiphysics was still in the trial stage, so there was no charging problem, and even if it were to be charged in the future, it would still be a steady stream. The agreement reached with the three bearing groups also involves the need for both parties to jointly improve the algorithm model, and is a contract signed in the form of installment payment. So, these two 7.5 million are the first major revenue of Torch Company since its establishment. After finishing the meeting with Fang Manchang and Guo Zhanwen, Chang Haonan returned to the office and made a call to Yang Huimei. As the person in charge of the marketing business of Torch Company, the latter is naturally very concerned about this large order, which may amount to tens of millions. He has changed into formal clothes and been waiting in the office for a day. When he answered the phone, he became excited: Mr. Chang, do you need me to go out and negotiate the price with the other party? "Uh... No, no, I''ve already finished the negotiation. You can find someone to draw up a more formal contract. We will sign it tomorrow." Chang Haonan still felt a bit unreal at this time. Although the 15 million did not go into his personal account, it was indeed the largest amount of money he had ever directly handled. Are you done talking...? ?According to the plan previously agreed upon by the two, today should be just a preliminary contact, followed by formal negotiations between the two sides. But it was obvious that there was a huge deviation in the direction of the story, which made Yang Huimei a little stunned for a while. Coupled with Chang Haonan''s tone just now, as if his body had been hollowed out, she immediately had a bad premonition: Mr. Chang, you didnt agree to any harsh conditions, did you? No, no, in fact we havent discussed it at all. They have fully accepted our conditions and are now waiting to sign the contract. I dont know if it was Chang Haonans misunderstanding. He felt that the other partys tone just now was like a mother who is worried about her son being bullied outside... Comprehensive ?Yang Huimei suddenly had a doubt about her significance in this company: "Mr. Chang, can you tell me how you discussed it..." "I" ?Chang Haonan briefly reviewed the entire negotiation process today. "Well" ?Yang Huimei on the other end of the phone helplessly raised her forehead: Mr. Chang, we generally call your way of communication asking for bribes ?Chang Haonan is just sweating profusely. I didnt think so before, but now that Yang Huimei said it, it seems that it really means something like that. But it doesnt matter, as long as there is no problem with our companys products... I will handle the contract matters, dont worry... ?Yang Huimei quickly took over the rest of the work. A few days later, the process research and development workshop of Xingcheng Special Steel. ? Young process engineer Wu Hao took the newly optimized process flow chart in his hand, put a piece of M50NiL steel sample produced by the company into the multi-component co-infiltration furnace, and began to look at the parameters of the entire process with some numbness. This is the countless time he has conducted similar experiments in a year. Get the process parameters from the R&D director, then experiment, test, and report the results back. Since graduating from college last year and entering this company, Wu Hao has been doing such boring and repetitive work almost all the time. If it were not for the fact that the salary was not bad, he would not be able to survive half a day like this. "Option 1: Co-infiltration for 6 hours, diffusion for 3 hours, nitrogen, hydrogen, ethanol ratio 0.20:0.20:0.15... Spheroidizing annealing at 680C, first quenching at 850C, second quenching at 1100C, -80C Perform cold treatment and high temperature tempering at 545..." As required during the onboarding training, he repeated the entire process to himself. Wait...nitrogen? ?Wu Hao, who had already started to set the working mode of the multi-element co-infiltration furnace, suddenly stopped what he was doing and looked down at the data in front of him again. This is when I discovered that todays process parameters are completely different from before. I turned back to several other process plans and found that they were all quite different from before. Logically speaking, this kind of process testing should be done step by step. Even if you change your thinking, there should not be such a big difference in one day. ??And the process design is not that easy to change. Each time the design experiment is changed, the design experiment must be stopped for several days. Its strange...Isnt it the wrong thing? He turned back to the first page of the process flow report and confirmed that the date was today, and that it also had the signature of Chief Craftsman Fang Manchang: Did Mr. Fang make a mistake? ?After hesitating for a moment, Wu Hao decided to call Fang Manchang: "Hey, Mr. Fang, I see that our processing technology today is completely different from before. I want to confirm with you. I''m afraid I just got the wrong one from you..." Fang Manchang, who was on the other side of the phone, was checking the data just submitted by another group of experimenters with his colleagues, and replied impatiently: "That''s right, that''s it. Just do as above." After saying that, he hung up the phone. In fact, Wu Hao is the least valued among the engineers under him. It has been more than a year since he joined the job, but there is still no significant progress. He has to ask many questions. Fortunately, his basic skills are good, so after the probation period, I still got a full-time job, but I was usually assigned to the job with the least importance. ??Although Fang Manchang didn''t have high expectations for the process design method he brought back from Chang Haonan this time, after all, it cost a huge sum of 7.5 million, and he couldn''t just throw it aside even for the sake of money. ?So he spent a few days working and found several typical craft plans based on that method, and then casually gave them to Wu Hao to do. Even if you cant do it, you should still collect data. Is it the process you designed yesterday according to what new method? ?The colleague sitting opposite Fang Manchang held a magnifying glass in his hand and was looking down at the dense data on the form. He asked without raising his head. Yes, Wu Hao asked me if I had picked it up by mistake. It was indeed different from the ones he had made before. ?Fang Manchang shook his head. He felt that he might be engraved in the development history of Xingcheng Special Steel because of the decision he made a few days ago. Just in a negative and typical way. You too, you actually took that thing seriously and even worked overtime for a few days to analyze it While the colleague opposite was talking, he used a red pencil to circle a few from the pile of data, then put the magnifying glass aside and rubbed the corners of his sore eyes: It still doesnt work. The average mass wear rate has exceeded 5.5g/Nm. This is still in the oil state. I dont dare to think about the data in the oil-off state..." There is no other way. Lets send this batch of samples for X-ray energy spectrometer analysis to see the wear and wear debris morphology, Fang Manchang has become accustomed to such results. In fact, after Xingcheng Special Steel produced qualified M50 steel, it began to study the heat treatment plan of M50NiL. However, after a few years, the progress cannot be said to be satisfactory, or at least it can be said to be standing still. 70% of the samples have overall performance that is not as good as the old M50 material, and the remaining 30% have not improved much. Occasionally, there are a few outstanding features, but there are also fatal problems of one kind or another. It''s all waste. ?However, he knew that metallurgical technology was advanced through so many trials and errors, so he could endure the loneliness. Lets analyze the next group. He said as he put on a new form. ?The colleague sitting opposite sighed and picked up the magnifying glass again. ??The boring work continued until late that night, and even two meals were delivered by people from the logistics department. ?Fang Manchang finished reviewing the last experimental data, stood up from his chair, stretched and prepared to get off work. ?When he first got up after sitting for a long time, he felt that his eyes were a little dark, and he held on to the table for a while before recovering. When he stood up straight again, he found a panting man standing at the door. Wu Hao? Fang Manchang recognized the other party: What are you doing here so late? Just hand over the data tomorrow morning. Its time to get off work. No, Mr. Fang, you are really amazing... ?Wu Hao panted and put the A2-size data record in his hand on the table: The test results of these pieces of steel today are simply amazing "ah?" ?Fang Manchang was about to take off his work clothes and put on regular clothes, but he stopped halfway through unbuttoning: What is the result? The process plan you gave me in the morning, there are 5 samples in total, and the worst test result is much better than the ones I made in the past..." Thank you Mr. Fang for giving me such a promising plan. I have always felt that you were biased against me. Its really ?Fang Manchang could no longer hear what Wu Hao said. He quickly opened the test results on the table. Of course, it was impossible to read the dense data in a short time, so he looked directly at the wear resistance part that had been bothering him before. 0.114g/Nm, 0121g/Nm, 0,094g/Nm What is your testing method? When the colleague next to me looked at the data in front of him, his first reaction was that the measurement was wrong. ?Wu Hao, who had just expressed his gratitude, was stunned for a moment, and then immediately replied: "This is the above requirement. The driving wheel curvature of the RCF3 rolling contact tester is R7mm, the diameter is 200mm, the applied load is 5.7GPa contact stress, the rotation speed is 30000r/min, 4050 aviation lubricating oil is used and the oil supply is sufficient. The rolling contact test was carried out on the samples under normal temperature test conditions. The sample specifications of the two materials are 2050mm..." "Mr. Fang, although the durability test has not been done and the metallographic structure has not been observed, judging from the surface data of wear resistance, corrosion resistance, surface hardening degree and ease of processing, this thing is simply a new generation. As for metal materials, when I was in school, I tested the M50NiL steel imported from Japans Datong Steel, and many of its properties were not as good as this..." Fang Manchang, who had not spoken for a long time, had only one thought in his mind: TMD, is this thing really useful? (End of this chapter) Chapter 446 Expansion of high-end steel production tenfold! Chapter 446 Expansion of high-end steel production tenfold! ?After being dizzy for a long time, Fang Manchang recovered from the stagnation of thinking, but he was still a little unsteady on his feet, so he had to sit back on his chair unsteadily and took several sips of herbal tea. ?His current mood is exciting. After all, after so many years of hard work, he has finally taken down the M50NiL bearing steel that has been difficult to conquer for a long time, although this matter does not seem to have much to do with him. Happily, I followed Guo Zhanwens advice in the capital. The 7.5 million was worth it. I am afraid that if this deal had not been reached on the first thought, I am afraid that Northeast Special Steel will always be overwhelmed in the future. ? I feel ashamed. People often quote half-sale, half-free prices like 7.5 million, and I actually think that the other party is asking for a bribe. ?There is also regret. I once had a very good opportunity to hug my thighs, but I didnt cherish it. Now that I have lost it, I regret it... To sum up, it is very complicated. A real mix of flavors. Um...Wu Hao, have you started doing the fatigue life tests on these five new samples? ?Fang Manchang put the enamel water cup back in its place, tried to pretend that everything was under control, and asked Wu Hao next to him. Fortunately, the latter was still immersed in the gratitude of the other party''s chief craftsman and did not notice the other party''s abnormality just now: Not yet. The basic performance test results are really good, so Ill get it for you after it comes out. And didnt you just say youre not in a hurry? Well start tomorrow morning Worry! Its urgent! Fang Manchang stood up abruptly and fastened the buttons on his work clothes again: Lets go, Ill go with you, lets start doing it overnight! After speaking, he picked up the experimental data on the table and prepared to leave. After arriving at the door, he suddenly turned around and looked at his colleagues who were still stunned at the original position: Quick, what are you doing in a daze? Come with you! The moon was dark and the wind was high. The three of them rushed to the test workshop not far away by using the faint light from the street lamp... The time required for fatigue life experiments is very long. Even if it is an equivalent accelerated test, it will take at least more than a week to simulate a working life of thousands of hours in actual conditions. If it is repeated in multiple groups, it will take even more time. Increased exponentially. Even though there is no need to do anything during the whole process, as long as you just wait for the results to come out, according to the regulations, someone still has to watch. Therefore, although it was already late at night when the three people walked into the testing workshop, there were still many testers working. In other words...fishing. A man saw Fang Manchang walking in with striding steps, he quickly stopped the game on the computer screen and minimized it. Mr. Fang ??But before he could say the welcome words, Fang Manchang directly ordered categorically: Stop all ongoing fatigue life tests immediately! Stop...stop? ?Several operators looked here almost at the same time, with expressions of disbelief on their faces. If the fatigue life test is interrupted, all previous tests will be in vain. Yes, stop, and then check and maintain the equipment. I will send a batch of new samples over later. Everyone and the equipment will go to test the new samples. I will sign! ?Fang Manchang had no patience to wait for the results of repeated tests at this time, but according to the test standards, the confidence must be guaranteed, so he directly decided to conduct multiple sets of experiments simultaneously. As for the samples currently being tested... It doesn''t matter anymore. Compared with the batch of materials Wu Hao just made, they are all waste anyway. ?Those who can work in this test workshop are all old employees of the company who have at least a few years of work experience. Although they are good at fishing and paddling, when it comes to doing work, they are still nimble in their movements. ??The initial little commotion quickly calmed down, and a group of people began to prepare for a new round of testing in an orderly manner. ?Fang Manchang looked at the test workshop in front of him with almost bright eyes, and his mind had even begun to think about the next move. Although China''s steel production ranked first in the world in 1996, the statistics were for crude steel. When it comes to high-end steel, the output is very low. ?Especially for bearing steel/gear steel such as M50NiL, the complex post-processing process greatly limits production efficiency. In addition, in the past, China could only produce relatively low-end special steel, and the market feedback was average, so everyone would deliberately reduce production capacity in the past. Now, however, the situation has changed. Therefore, in a short period of time, whether it is our own Xingcheng Special Steel or our friend Dongbei Special Steel, the most important task must be Expansion of production. ?Thinking of this, Fang Manchang turned back and looked at his colleague Xu Chengcheng who was following him. "Lao Xu, please hurry up and prepare a report for the general manager''s office in the next few days. If the test results are ok, you will hand it in as soon as possible. It is recommended that the group prepare funds, and of course apply for and public relations from above. , strive to expand the production capacity of special steel to ten times the current level by this time next year! How muchhow much? ?Xu Chengcheng looked like he had seen a ghost. Ten times, or at least ten times! Fang Manchang said confidently: If our steel is successfully put into production, domestic bearing companies will definitely rush for it, and may even be exported to other countries. Ten times the production capacity is at least 10 times! ??He has inevitably begun to look forward to the wonderful scene of domestic special steel punching Chun Nakajima and kicking Krupp. ?However, from the perspective of Xu Chengcheng, who does not know the whole situation, making such a crazy suggestion is no different from writing a resignation letter directly: No, Lao Fang, I know that the performance of this steel should be very good, but we should also do it step by step, right? Xu Chengcheng, who was not far behind him, wiped the sweat from his forehead and felt that this plan was a bit too radical: If you think about it, for the special steel our group produced in the past, we had to ask our grandparents to buy some. Now, suddenly, a brand new grade of steel is introduced, which is said to be better than M50NiL. It will take some time for the market to accept it. " "What''s more, for a new material, after the bearing and gear parts manufacturers take it back, they have to conduct further post-processing of the product. This also takes time, not to mention that the interest relationships in the bearing and gear industry have already It is very stable. Opening the market is not just a technical issue. As for exports, it is even more unpredictable. How can those developed countries accept our steel so easily..." Lao Xu. Xu Chengcheng was interrupted by Fang Manchang halfway through his long speech: I understand what you are saying, but I dare not say that about other groups. At least the three groups, Bingzhuan, Luozhou and Fuzhou, will definitely fully support our new steel products. It will be absolutely easy to acquire ten times the production capacity! The expression on the former''s face was clearly one of disbelief. How many dishes have been consumed? ?After a long time, Xu Chengcheng tentatively spoke again: If these three companies all use our bearing steel, wouldnt their domestic market share reach 100%? ?At first it was just a casual comment, but in the end Fang Manchang replied seriously: Of course its impossible to be 100%, the most optimistic scenario is only 50% Then he added half a sentence in his mind: After all, Northeast Special Steel is probably planning to expand production... 5 Xu Chengcheng said to himself that you are really humble, but he was worried that the tone of his true words would be too sarcastic, so he swallowed it in the end. Dont worry, you signed my name in the end. Even if something happens, I will be the one to bear it. You just need to write down the contents of the report. Fang Manchangs confidence is certainly justified. After all, the contact between their two special steel companies and Torch Company is the three bearing groups that are the matchmakers. ?The other party made it clear at the time that the imported M50NiL did not meet the requirements, so they needed to develop a new special steel material. ??If you dont buy it, why go through all this trouble? But the details of this matter are too complicated, and he himself looked like a clown at the time. The fewer people who know about it, the better. So Fang Manchang thought over and over again and decided to send Lao Xu over. When the report is submitted, just explain it to the general manager. (End of this chapter) Chapter 447 Ten times the lifespan, is this really not bragging? Chapter 447 Ten times the life span, is this really not bragging? ??When Chang Haonan received a call from Jiangsu Province, he had just finished a meeting with Du Yishan and Liu Zhenxiang The time has come to the end of August, and it is time to submit the report on the solicitation letter jointly issued by the three ministries and commissions. At that time, opinions were solicited mainly on three matters. The first is to split the Aviation Industry Corporation into Group One and Group Two. This is also the focus of the discussion among the three. The groupization and de-administrative reform of state-owned enterprises is a major trend of the times and is definitely beneficial to the country and the people in general. And this split is not just for the aviation industry. In fact, all the five original administrative corporations (aviation, aerospace, weapons, shipbuilding, and nuclear industry) will be split into two and become subordinate to the Science and Technology Commission. of the top ten groups. ??Whether it is Chang Haonan, who is a reborn person, or the other two senior academicians who are wily and wily, they all understand that this cannot be changed by a few people. However, the method of splitting can be discussed. From Chang Haonan''s hindsight, the split of the aviation and shipbuilding industries was not considered a success. The separated Aviation Industry Groups 1 and 2, as well as China Southern Shipbuilding Industry Corporation and Beizhou Shipbuilding Industry Corporation, were all re-merged in the next ten years or so, which caused a lot of trouble. circle, and finally returned to the starting point. Facts have proved that two companies with completely overlapping business scopes cannot truly achieve the expected role of "mutual promotion in competition". Instead, they will generate a lot of internal friction, which is not a reasonable way to split. The reform methods of the nuclear industry and aerospace industry are much more reasonable. They were split into Nuclear Industry Group/Nuclear Industry Construction Group and Aerospace Science and Technology Group/Aerospace Science and Industry Group based on different businesses. After surviving the initial unstable stage, they gradually began to extend their business to what the other party was good at in the past. In the field, healthy competition has been achieved to a certain extent. Therefore, the three people finally reached a common opinion and suggested that the Aviation Industry Corporation should be divided into two parts based on its business scope and become the Aviation Industry Group and the Aviation Power Group. The second is to conduct a nationwide merger of airlines. This actually has little to do with the aviation industry. The three of them are not business or management experts. Therefore, they only suggest that an airline operated by the Air Force or the aviation industry system should be retained, similar to Anton Nov Air or Volga-Dnepr Airlines ensure that independent models have the most basic market. The third is to select a site to build a brand new aviation industrial park dedicated to serving the international aviation industry chain. According to Du Yishan, among several candidate cities, there are more candidates supporting Luzhou. In the end, the three of them did not reach a consensus on this matter. It can only be said that Luzhous economic level, industrial base, and transportation convenience all meet the requirements. Geographically, it is neither south nor north, and its policies are relatively biased towards manufacturing. In short, it is an acceptable choice in all aspects. ?Until Chang Haonan picked up the phone receiver, he was still thinking about the conversation between the three people just now, and at the same time, he was reading a document that Yang Huimei brought to himit was the user agreement for the TORC Multiphysics software for the European Union. Hello, I am Chang Haonan. Mr. Chang, our new bearing steel is ready! Its even better than the original steel from SKF! The voice on the phone was a little distorted due to excitement. In addition, Chang Haonan was already in a state of multitasking and his mind had not turned around for a while, so he was stunned when he heard this sentence: "Who are you" I am Fang Manchang, the chief craftsman of Xingcheng Special Steel, whom we have met before. ?Fang Manchang then remembered that he had not reported his identity yet. Chang Haonan finally came to his senses: Oh, it turns out to be Mr. Fang, here you go... No, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no Fang Manchang on the other side of the phone quickly interrupted Chang Haonan and corrected the latters title: Mr. Chang, just call me Xiaofang. Then what Fang Manchang looks like he should be in his forties. Even considering that the metallurgy industry is quite tiring and he ages quickly, he must be in his thirties. It is really difficult for this little Fang to say "hmm". ?It doesnt matter what the other person is like, but you cant call him old. Fang Gong, have you guys come up with new steel now? So quickly? Although we are very confident in our methods, it has only been less than two weeks since the deal was concluded, and it seems that it is still too fast to complete sample production, process selection and testing. "Hey, this is what you brought out, Mr. Chang. We must attach great importance to it. When we come back, we will make calculations based on some of our past experiences. Then we will stop all other research and testing at hand and concentrate all our efforts on this. One direction is dedicated to tackling key problems, and it was just completed this morning..." ? Fang Manchang was chattering in excitement, without much emphasis in his words, but he did not forget to "beautify" the process of researching new steel materials. In fact, after he came back, he just followed Chang Haonan''s method, relied on intuition and experience to select a few values ??and gave them to the least popular people under his command. ?Who would have thought that if they were lucky enough, they would find the dessert directly. If you are not lucky, even if it is finally developed, it may be much slower. This is also one of the things that Fang Manchang fears. ?Of course, it is impossible for him to tell these details. So, how exactly does it perform? Chang Haonan understands that as a researcher, after experiencing the darkest moment for many years, he is excited to finally see the dawn, and he cant wait to tell the whole process to everyone he meets. But he really has no such leisure now. After all, we are also in a hurry here. "Uh... the performance is very good. We simulated up to 20G cycles under the experimental conditions you gave. With the same failure probability, the cycle life is almost 40 times that of the past M50 steel, even longer than the previous one we bought from SKF. The M50NiL samples received are more than twice as high. In addition, several key basic data have fully reached or exceeded the level of M50NiL. We are sorting out the detailed test results and will send them to your mailbox this afternoon at the latest... ? ? Okay, okay Chang Haonan nodded and breathed a sigh of relief: Then, where is the bearing manufacturer When our data comes out, we will send them a copy when we send it to you. Fang Manchang quickly replied. ?Once the results came out, the first person he contacted would definitely be Chang Haonan, and the rest, even the general manager, would have to wait a little longer. ?Furthermore, this also seems to indicate that Northeast Special Steel''s actions should not be as fast as his, otherwise the three major bearing groups should have already received the letter. ?This made him feel at ease immediately. The three special steel plants in Beiman, Fushun and Dalian were all in a state of poor management and close to bankruptcy last year. They just merged to form Northeast Special Steel this year. Naturally, there are still a lot of troubles to be solved. However, no matter what, the other party has higher production capacity and scale. It is much larger than Xingcheng Special Steel, which was only established two years ago. If it takes the lead in research and development, even if the market is large enough in the short term to avoid direct conflict between the two parties, it will inevitably suppress its own side in the long run. More importantly, there is no harm without contrast. It would be bad if the progress is too much slower than that of the opponent, making the boss feel that he does not take it seriously. Chang Haonan put down the phone and just turned his eyes back to the document in his hand when the next phone rang immediately. Hello, Mr. Chang, I am an engineer from Northeast Special Steel, Guo Zhanwen Yes, we have sent the test data to your email, and three bearing groups have also sent it, but we havent gotten through to you yet... Yes, the performance is better than M50NiL The content is similar to the previous call from Manchang. "Mr. Chang, I now feel that the price of 7.5 million we offered before was a bit too low..." ??Yang Huimei was sitting next to her, waiting for Chang Haonan to sign. Although she didn''t understand metallurgy, it was easy to tell from the tone of the phone call that both the families on the other side felt that they had gotten a big deal. According to her experience, this situation often means that the price is low. "No, the method I gave is specially optimized to face this problem. The further the grade of the base material is from G13Cr4Mo4Ni4V, the worse the qualitative accuracy will be, and it can only cope with a relatively simple chemical heat treatment process. The value is basically only one or two times. Besides, we must cultivate good users first, and we cant catch all the benefits. If they dont make any money, how can they give it to us? We have to wait until the pigs are fattened before killing them... Chang Haonan said as he picked up the user agreement text in his hand again: Just wait, they cant live without us in the future... at the same time. Liao Province, Fuzhou Bearing Group. ?Technical Director Zheng Chaoqun also just put down a phone call. Shortly afterwards, he was about to go to the cafeteria for lunch and sat back in front of the computer. Master? ??The apprentice who had already reached the door turned back and looked at Zheng Chaoqun with doubtful eyes: Didnt I say that your favorite roasted chicken nuggets are available in the cafeteria today The latter looked at the webpage being refreshed on the computer and hesitated for half a second, then took out a five-dollar note from his wallet: You can help me pack a lunch box and bring it back. I have something to do and I wont go eat. "Oh well" A few minutes later, he finally opened the company''s mailbox using an unskilled operation. Thats four times...thats not right... He adjusted his glasses on the bridge of his nose, moved very close to the screen, and counted the numbers on the table several times. Four...forty times? Zheng Chaoqun''s hand subconsciously slapped on the keyboard, leaving a string of letters of unknown meaning in the reply box below. "Mr. Chang...are you really not bragging?" ? He ??immediately thought of the latters statement about increasing the bearing life by an order of magnitude when he had a meeting with Chang Haonan in Beijing. At that time I thought it was just a casual talk. Now it seems that people are still too modest. ?Although there are many factors that limit the life of finished products, the fact that the material life has been increased by 40 times does not mean that the final bearing will have the same level of improvement. But no matter what, what was the shortest board in the past suddenly became the longest board now. 10 times that is certainly more than enough. (End of this chapter) Chapter 448 Are you sweating profusely, Tsubakijima? Chapter 448 Are you sweating profusely, Chun Nakajima? Zheng Chaoqun is very sure that the other two colleagues must have received calls and emails with the same content. So now, everyone is on the same starting line. Cant fall behind! A strong sense of urgency arose spontaneously from the bottom of Zheng Chaoqun''s heart. In the past few decades, Fushaft has always been the largest and most powerful bearing manufacturer in China. ??However, Bingcheng Bearing and Luoyi Bearing are also at the same level and are not far behind. In front of the first-class foreign bearing manufacturers, the three companies have no competitiveness anyway. ?But now, an opportunity for ascension lies before you. If you seize it, you will not only be able to directly join the top international level, but may even have the opportunity to reshuffle the bearing industry around the world. But if you cant catch it or fall behind... ?Then I''m afraid there won''t be a chance to turn around in a short time. Thinking of this, Zheng Chaoqun directly grabbed the phone next to him and dialed the internal number of the group general managers office... After chatting for a few words, he hung up the phone, printed out the data sent by email, and prepared to go out with a few pieces of paper. When I left the office, I almost bumped into the apprentice who had just returned. Master, your food... Just put it on my desk! For Zheng Chaoqun now, eating is already a secondary matter. He needs to launch a large-scale bearing research war! Although Chang Haonan originally called the three of them over to produce bearings for aero-engines, they did not just come up with a bearing design drawing, but a set of design theories that, although not yet complete, have great potential. . It is said that teaching a man how to fish is worse than teaching him how to fish, but Chang Haonan taught more than just fishing skills, he even prepared fishing nets and trawlers. In this case, Zheng Chaoqun felt that it was time to consider expanding the scope of business. Bearings used in aerospace engines are indeed of high quality, but their scale is ultimately limited. Moreover, the three of them compete simultaneously. Even if it is really taken down, the business volume will only be a drop in the bucket for their Fuzhou Group. As a symbol of the group''s honor, it is okay, but it is definitely not expected to support the entire group. If you really want to become bigger and stronger, gain a reputation, and improve user perception, you still have to go to the real market. The same plot was played out in two other places almost at the same time... Compared to the spare parts manufacturers in the middle reaches of the industrial chain, it is actually the materials field that is further upstream that is the first to notice changes in the industry situation. ??Nara, Japan. Minister Guangtian, this is the order data submitted by the Chinese market last month. ?The secretary knocked on the door gently and placed a thick stack of documents on the desk of Hiroshi Hiroshi, the deputy director of the marketing department of Chunzhongjima Group. After all, it is already the beginning of September, and orders for the fourth quarter and even next year have already been submitted. With China''s continuous opening up and economic development in recent years, its domestic demand for precision bearings has increased. Compared with directly importing finished bearings from companies such as NTN or Koyo, key semi-finished materials are purchased and then assembled and produced domestically. The form is obviously more favored by the Chinese people. Although the final product quality is still far behind the high-end models of the real original factory, the cost is lower, and it can be regarded as domestically produced on paper. Therefore, Chun Zhongjimas Chinese business has been running for more than 40 consecutive months. The year-on-year growth is at a double-digit level, and the status of Guangtian, the deputy minister responsible for China''s market direction, has also increased. In fact, slightly larger bearing or gear manufacturers will have their own special steel production capabilities. For example, Fuzhou Bearing Group Special Steel Co., Ltd. is a subsidiary of Fuzhou Bearing Group, and M50NiL steel was even originally produced by bearings. Developed by the specialty steel division of manufacturer SKF. However, these companies or departments are basically only responsible for the post-processing of finished or semi-finished steel products, and are not responsible for the process from iron ore to steel (low added value, too much investment), and their scale is relatively limited, so sometimes they still have to start from Specialized special steel companies such as Xingcheng or Datong purchase raw materials. Chunakajima Special Steel is quite special. It is also part of the Chunakajima Group, which produces bearings. However, later on, the side business accidentally developed better than the main business, and it began to gradually get involved in the field of raw material production, which is considered a cross-border business. Business. ?About five years ago, he took a fancy to China, a market that was not very prominent at the time. He almost sold everything in order to smoothen the relationship, and then transferred himself to his current position. ? Facts have proved that his big gamble was right. Due to the explosive development of the Chinese market in recent years, Chunzhongdao intends to separate the Chinese business and establish a Chunzhongdao Huaxia headquarters. ?The group has even sent people to reach cooperation with China and start building the first local factory in China. Hiroshi Hirota is naturally the only candidate for the head office. ?As long as this step can be taken, it is tantamount to reaching the sky in one step. It may even be possible to use this as a springboard to directly enter management in the future. ?However, it was almost time to get off work now, and two foreign trainees who had just been recruited asked him to go out for drinks in the evening. With such a thick document, Hirota naturally didn''t have the patience to flip through page by page. ?So after briefly reading the first two pages, he turned to the end impatiently. The big guys above wont care about the complicated data in the middle, so you can take your time and look at it. He is going to fill in the most critical business scale and growth status into the report at hand, and then go to enjoy the nightlife. Compared with the data in August last year, it increased by 11.4% year-on-year "etc" After Hirota copied this number, he realized something was wrong. He raised his head and asked the secretary who had just delivered the materials: Why has it dropped so much? The data of 11.4% is certainly not bad. In fact, if it were placed elsewhere, it would definitely be worth popping the champagne. But in the first eight months of this year, Huaxia''s year-on-year business growth was around 15%. How come it dropped by almost a quarter at this critical juncture? ?Hiroshi Hirota knows that his future and destiny are tied to the Chinese market, so he must not make any mistakes. The main reason is that several previous major customers have reduced their order quantity in the first quarter of next year. The largest one, Fuzhou Bearing Group, has booked only half of the total order quantity in the first quarter of this year. Hearing this heartbreaking data, Hirota''s body shook violently, and the tip of the long knife pen in his hand banged on the table. This was a gift from his father when he was promoted to Dongda University, and he has been using it for nearly twenty years. ?But at this time, Guangtian could no longer care about that much. He quickly turned back the report and quickly found the part that the secretary said. The main ones affected are steel **** and rollers... Hirota Hiroshi took a deep breath. ??These are the two most important products of Chunakajima Special Steel. Not only China, but even Japanese high-end bearing companies such as NSK, NTN, and Fujikoshi are their customers. There must be no problems. After hesitating for a moment, he quickly made a decision. Its a dove tonight. After all, they are just two trainees. How can they be as important as his position as head of the China Headquarters? Hirota signaled the secretary to leave, then took out his mobile phone and sent a group text message to several colleagues who were also tied to the Huaxia Market: Meet you at the same place tonight at Ms. Kanas shop. (End of this chapter) Chapter 449 Material breakthrough, everything is alive Chapter 449 Material breakthrough, everyone is alive Not long after, Chang Haonan received the test results from Xingcheng Special Steel. Download at the fastest speed and then open it. ?The new computer given to him by the school has good performance and can even open two forms at the same time without lag, which makes his office experience more than a little better than before. For a person who has become accustomed to modern office methods, holding several printed paper forms every time and comparing them one by one is simply an eyesore and a brain injury. These two materials seem to be somewhat different After extracting the key data and comparing them, Chang Haonan rubbed his chin and thought. Metallurgy can be said to be an open question with no standard answer. At least not yet. Therefore, although the new materials produced by Xingcheng Special Steel and Northeast Special Steel can be regarded as having the same origin, after all, they are all derived from the set of process design methods provided by him, the situation is similar to that of other special steel companies. , due to differences in past experience and habits, the final specific process will not be exactly the same. Generally speaking, Xingcheng Special Steels products are more suitable for bearings. The material surface hardness and core hardness of Northeast Special Steel are greater, which is relatively more suitable for making gears. ?Of course, the difference is definitely not too big, and there is no big problem if you really want to use them interchangeably. Bearing steel and gear steel are often the same base material, and manufacturers can just take them back and perform different post-processing. ? Its just that aircraft engine bearings are not used in large quantities, and they are still in trial production, so you must choose the most suitable one. Even though Northeast Special Steel is an enterprise in Chang Haonans hometown of Liao Province, it is not easy to harm the public and enrich private interests at this time. ?So he picked up the receiver of the red landline on the table and made a call to Liming Engine Company in Shengjing. Hello, Im Chang Haonan, please transfer me to Mr. Zhong. ?Chang Haonan and Zhong Shihong are old acquaintances, but they must be addressed more formally in front of each other''s subordinates. Job title in the workplace.jpg Please wait a moment. Soon, after a dial tone that lasted for perhaps a few seconds, the call was reconnected. Mr. Chang, please look for me. "Gong Zhong, Xingcheng Special Steel Company in Jiangsu Province has developed a new type of bearing steel with better performance than M50NiL. In terms of material properties, it can be used in third-generation turbofan engines. Please follow us as soon as possible. Axis, Luozhou and Bingxuan will contact each other and ask them to provide some samples for basic performance testing. " Wait...better than M50NiL? ??Zhong Shihong, as an old technician at Liming Factory, although he is not a metallurgical major, he naturally knows a lot about things like aircraft bearing steel. The bearing steel used by Huaxia before the 1990s was mainly the first generation ZCCr15, a typical high-carbon chromium steel that came out in 1901. ?Of course, being old does not mean being backward. This kind of steel is still widely used in high-speed railways and precision machine tools, but it is not suitable for the harsh working environment of aerospace engines. Until the mid-1990s, on turbojet 14 and turboshaft 8, the domestic application of the second-generation bearing steel M50 was finally realized, but the research on this material was still far less in-depth than that in developed countries. As for M50NiL, he had never thought of using it in the Turbofan 10 project. This is also a worry for Zhong Shihong. After all, the working environment of third-generation engine bearings is harsher than that of second-generation engines. If the bearings of turbojet 14 are moved to turbofan 10, the first turning cycle may be lower than 150 hours. ?That is almost unacceptable. As a result, now, even the overall design of the turbofan 10 has not been released yet. Mr. Chang called and told him that this problem has been solved? "Yes, you can contact the bearing supplier for this. Just some time ago, I also designed a series of brand-new ball bearings and roller bearings with several experts in the field of mechanical design. Combined with the new bearing steel, it can be used in the third The bearings on the modern engine have the same lifespan as the entire engine! ThisIgod Zhong Shihong on the other end of the phone was already a little dazed by the huge surprise. He sat at his desk and calmed down for a while before finally calming down: "Mr. Chang, if this bearing passes the basic performance test, should it be installed on the Turbofan 9 first for installation testing?" ?????Although Chang Haonan is only nominally the chief designer of the Taihang engine, the Turbofan 9 project is still entirely led by Factory 430 is in charge, but now almost half of Factory 430s R&D and production teams are here in Shengjing, so he can actually direct two projects at the same time. So he immediately gave an affirmative answer: "Yes, before the detailed design plan of the turbofan 10 is released, our Liming Factory will connect all the technologies related to the production process with the 430 factory and conduct tests on the turbofan 9, so that the design work and the production work will not be delayed. It can also solve the problem of localization of turbofan mid-range thrusters. Strictly speaking, this kind of operation is of course a bit unsophisticated, but China''s foundation in aviation power is really poor. Not only is the capital investment limited, but even the scale of R&D and production personnel is too limited to complete two large projects at the same time. . It happens that these two types of turbofan engines are key subsystems of key models, so Chang Haonan can only use this method to maximize resource utilization. ?This is why, in his proposal in the morning, he strongly opposed splitting the Aviation Industry Corporation into two groups with the same business to engage in so-called "competition in the same field." How many dishes and drinks are needed to make you drink like this? On the other side of the phone, after hesitating for a moment, Zhong Shihong decided to put aside the past grudges between the two factories: Okay, it just so happens that Zhang Zhenhua is also in our factory now, so it is more convenient for me to work through him. The world is huge, and the project at hand is the biggest. Once this is done, even if the 430 factory can get a mature turbofan engine model for almost nothing, if you really want to calculate it, it is he and Liming Factory who will gain the most. The identity of the big brother of aviation power is absolutely unshakable. After settling the most important matter at hand, Chang Haonan then responded to several faxes, confirming that Xingcheng Special Steel was the point A supplier of aviation engine bearing steel, while Northeast Special Steel was the point B supplier - in this era Email is not yet a formal means of communication in China, so formal documents still have to be delivered by letter, telegram or fax. As for the so-called AB point suppliers, they refer to the configuration of the AB corner of the drama to avoid accidental uncontrollable factors from having a huge impact on the project progress, which is part of risk management and control. ? It was not yet popular in the 1990s, but in the future everyone will gradually build this awareness through **** lessons. ?Of course, this does not mean that Northeast Special Steel has lost its opportunity. Public or private, Chang Haonan could not let their efforts go to waste. As the basis of all manufacturing industries, huge breakthroughs in the field of materials are not just beneficial to one project. Especially gear bearings, which has always been a shortcoming of China''s manufacturing industry. Of course, Chang Haonan believes that both Xingcheng Special Steel and Northeast Special Steel are already considering introducing this new material to the market. But it will take time to gain market recognition. ?After thinking for a long time, Chang Haonan picked up the phone again and dialed a number from the Science and Technology Commission. ??Its just that this time the call was not made directly to Ding Gaoheng. ?The other party is, after all, the director of the Science and Technology Commission, so it is impossible for him to directly trouble him with every little thing. Hello, Secretary Lan, Im Chang Haonan. Comrade Haonan, I have something to give you. Although Chang Haonan currently does not have any formal position in the Science and Technology Commission, almost everyone knows that, except for Ding Gaoheng himself, his voice in the Science and Industry Commission is almost equal to that of several deputy directors. ???Let alone someone like Secretary Lan who can follow the big leader. As long as it does not violate principles, Chang Haonan is his second leader. Please make a list of the projects that are currently applying for the Seiko Plan and send it to me. Chang Haonan is naturally planning to find a few suitable ones to distribute to Northeast Special Steel. He needs a bowl of water to keep it level. Okay, Ill do it right away! (End of this chapter) Chapter 450 The French design is unreasonable! Chapter 450 The French design is unreasonable! Bingcheng, 602 Research Institute. ?Wang Zhilin, an engineer who had just graduated from Bingcheng University of Technology, was immersed in a computer, staring anxiously at the calculation data that unhurriedly popped up one by one on the screen. The 602 Institute is called the "Cradle of China''s Helicopter Industry", which sounds nice to say, but because in the past few decades, China has not seriously equipped many decent helicopters, and most of them are imported models, so this cradle At least so far, no reason has been figured out. ?Zhi-5 is just an early piston helicopter with the technical level in the early 1950s. Z-6 and Z-7 collapsed in the middle, Z-8 belongs to Changhe, and Z-9... Zhi 9 is on the computer screen in front of Wang Zhilin. ??The vast majority of the "Dolphin" family currently serving in the Chinese army are SA365N1 imported or assembled with imported materials, which is the French prototype of the Z-9. ? ?The real Z-9 has just been delivered to the troops stationed in Hong Kong, with 6 aircraft not long ago, and the civilian model has only found two intended users... In fact, even the main rotors, tail rotors and transmission systems of this batch of aircraft use a large number of serially assembled parts, that is, original SA365N1 parts purchased directly from the French Aerospace Company and installed on the aircraft. The engine is directly imported from the Ahaye 1C. It is somewhat similar to the current state of the J-11. In this case, 602 Institute naturally does not have enough funds to purchase advanced supercomputer like 601 Institute or 611 Institute. But the advent of a new era, especially the sudden rise of a young man named Chang last year, has made everyone aware of the value of digital design. So in the end, 602 Institute still squeezed out some of its scientific research funds and purchased a cost-effective server from Sugon Company. The price is just poor performance. ?Wang Zhilin is currently calculating the strength margin of the main reducer tail output transmission bevel gear pair. It is not particularly complicated in theory, but just outputting the data has already taken half a morning. ?This is because the new TORC Multiphysics software has greatly improved the calculation efficiency. Otherwise, if you use the old structural mechanics calculation software, 80% of the calculations will get stuck in the middle. Sigh... This is good, the pace is slower, suitable for a slow person like me..." Wang Zhilin comforted himself while writing the last number on the screen on the whole machine transmission system design diagram spread on the table in front of him, and then stretched: Its been half a month, and Ive finally finished all these things... It must be admitted that the French Aerospace Corporation did not hide any secrets when transferring the technical data of SN365N1. The entire introduction process of Z9 went smoothly, as if the French had been caught by China. Not only does it include a full set of technical information, but it also includes independent export rights in the contract for the first time. This is an extremely rare situation. Even for the J-11 in this timeline, Sukhoi has even given the authority to jointly modify it to the 601 Institute and the 112 Factory, but it has also insisted that China cannot export the Flanker series of fighter jets and their equipment to any third party. Any improvements based on the model. So logically speaking, the research and development of the Zhi9 project should be very simple. However, the transmission system produced by the Bingcheng 122 Factory in China has always failed to meet the performance requirements. As a result, the subsequent naval-type Z-9C was obviously replaced with a turboshaft 8F engine with better performance, but the actual available output power did not increase. Fall instead. ??The final result is that an aircraft can only carry one of submarine search sonar and anti-submarine torpedoes. At least two Z-9Cs are needed to complete the submarine search-submarine attack task process... Very outrageous. Wang Zhilin is trying to solve this problem at this time. "The maximum allowable output power of the main rotor is 800kW, the maximum allowable input power of both sides is 900kW, the upper limit of the single-stage oil pump speed is 3800, and the oil pressure under working conditions is 0.17-0.26Mpa..." He picked up the red and blue pencils at hand and wrote about the past few days. Each number recorded on the design drawing is circled with a red or blue pen. There is no problem...how can the available power be reduced..." The maximum continuous output power of the turboshaft 8F engine equipped on the Zhi-9C has been increased from the original 437kW to 496kW, but no matter how you calculate it, it is still within the allowable limits of the entire transmission system and has sufficient margin, even if the processing accuracy on China''s side cannot reach it. The original D-class of French Aerospace should not have the situation where the input power increases and the output power decreases instead. Wang Zhilin, who felt his brain was a little bloated, simply threw the pencil aside and opened the tutorial that came with the TORC Multiphysics software on his computer. This is his favorite leisure activity in recent days, bar none. Generally speaking, no one will bother to look at the "Help" interface of the software. However, it is said that this tutorial was personally completed by Chang Haonan, a legendary figure in the industry who has been named a demigod and the developer of the software. ?Wang Zhilin didnt take it seriously at first, but he just opened it one time to pass the time. Unexpectedly, I became addicted to it after seeing it. ?Even if the content writer is not Chang Haonan himself, he is definitely a person with profound attainments in the field of numerical computing. From then on, he began to read this part whenever he had time. "etc" Soon, Wang Zhilin happened to see what he was interested in: Tail output bevel gear pair He was suddenly inspired by the contents of one of the calculation examples. Yes, it is not only the main rotor that affects the power output of the helicopter, but also the tail He quickly reopened the project file for the transmission system modeling and imported it into TORCMultiphysics. ??However, this time the focus of his research became the rear part of the helicopter. Its so slow ?For the first time, Wang Zhilin felt that the server purchased from the institute was such a waste of time. ?But no matter what, the problem at hand had to be solved with reference to it, so Wang Zhilin had no choice but to bang the table in frustration. It was another long wait, and it was not until the sun set that the second round of calculations was completed again. Following that, he stood up and took from the side a copy of the new standard GJB/Z89 issued not long ago by the Commission of Science, Technology and Industry for National Defense, and began to perform strength verification calculations. This time, when the verification results came out, Wang Zhilin saw the problem almost at a glance. The original design working load of the main reducer tail output bevel gear pair is 220kW, and the maximum power of the tail output is 285kW? ?This exaggerated number made him first think that he had just calculated it wrong. ?Its okay to leave no margin, but its still nearly one-third over the limit? This is the original structural design provided by the French! No way? ?Its not that outrageous, right? ??However, after checking the structural mechanics simulation results and strength verification results again, Wang Zhilin was very sure that there was no problem with his calculations. In other words, there is something really wrong with the French design! (End of this chapter) Chapter 451 Helicopter main reducer Chapter 451 Helicopter Main Reducer Wang Zhilin, who finally discovered the problem, murmured his gratitude to the tutorial author, quickly picked up a stack of calculation drawings spread out on the table, and jogged upstairs to Guo Jingshan, chief engineer of the 602 Institute. He is also the general person in charge of the import and imitation work of Zhi9. You must know that this project was first started by the 602nd Institute and the 122nd Factory by themselves, like the J-7F, with a huge sum of 320 million yuan (currency value in the 1980s). Several units participating in the project were all heavily in debt for this, which is enough to show that His courage and courage. However, to engage in research and development in the aviation industry, courage and courage alone are not enough. Today''s Bingcheng Aircraft Industry Group is troubled by the localization rate and reliability issues of the naval and army armed types. Mr. Guo, Mr. Guo, I found a problem! Wang Zhilin had both hands occupied and it was not convenient to knock on the door, so he had to stand at the door and call softly into Guo Jingshan''s office. The latter, who was immersed in the table, raised his head and saw only a figure standing at the door. However, because the upper body was almost completely spread out and covered by the half-rolled drawings, it was difficult to see who it was. ?But those who come here with this appearance must be the technical staff of the institute. You go ahead and put your things down. ?? Guo Jingshan straightened his hair, which was only around his ears, and motioned for the visitor to put things on his desk. Then he saw the identity of the other party: "You are...the new little king who graduated last year, Wang Zhilin?" Logically speaking, as the chief engineer of the institute, it is impossible for him to remember every newcomer in the institute. However, Wang Zhilin is very outstanding among his group of newcomers, especially in the field of numerical calculation, which has been very popular recently, so it is inevitable to retain some impression. Yes, Mr. Guo, I am Wang Zhilin. ?Wang Zhilin nodded while sorting out the messy drawings. What problem did you just say you found? Guo Jingshan, who put on his glasses again, recognized at a glance that the transmission system on the drawing was that of the Z-9. Of course, this was actually not difficult. After all, the only helicopter models that had actually landed in the entire 602 were the Z-5 and the Z-9. , and even a novice who has never studied aviation can see the difference between the two. I found something wrong with the original design of the French. There were big problems. "oh?" ??Guo Jingshan, who was smiling just now, his eyes suddenly became sharp: Where exactly? The tail output bevel gear pair of the main reducer has insufficient strength margin. ?Wang Zhilin pulled out a drawing from below and pointed to several locations circled in red pencil on it: "I checked the original design materials provided by the French side. Because the Dolphin was actually developed from the Skylark helicopter, I borrowed a lot from the original design and designed the current main reducer on the first model SN365. , I calculated that the maximum transmission power of the tail output bevel gear is 220kW. In the subsequent models, as the engine power continued to increase, the maximum load endured during flight also increased, and the French Aerospace Company only added the vibration polishing process of the tail output bevel gear to improve its surface contact strength, but The structure itself has not been modified, so..." So the model we copied actually has the tail rotor transmission mechanism operating under high load all the time? Hearing this, Guo Jingshan was also a little confused. Very outrageous cause of failure, but if it were a French person... It seems to be less outrageous. Thats right, and thats the original French design. ?Wang Zhilin nodded and continued to explain: "Our original standard for helicopters was copied from the French military standard. Even the French couldn''t detect it. We will definitely not be able to detect it if we copy it. Today I had a sudden idea to use the new national military standard that was just issued. After a while, I immediately realized something was wrong..." Industrial standards are the same as laws. They must not be retroactive, otherwise there will be chaos. So in principle, projects that have been completed before the new national military standards come into effect should continue to use the old standards to ensure the continuity of use and maintenance. However, due to China''s special circumstances, there are still a large number of projects that have been nominally completed, but in fact only part of them have been completed. Zhi9 is one of them. Even Chang Haonan cannot give a one-size-fits-all approach to decide whether these equipment should continue to use the old standards or switch to new standards. It can only be decided by the respective project teams. Fortunately, the standards specific to helicopters mostly include additions and few changes, so there is no risk of overturning the entire model and starting over. After a short pause, Wang Zhilin continued to add: "But I already have a preliminary idea for improvement. I can increase the module of the bevel gear pair and increase the tooth width appropriately. In this way, the installation position of the large bevel gear remains unchanged and the small bevel gear moves backward, so that the shaft intersection angle, The only cost of increasing the strength margin without changing the transmission ratio and steering is that the engine fairing volume must become larger, but for helicopters, there are not many parts that need to be considered for the aerodynamic shape..." In addition, since we have decided to modify the main reducer, we might as well do it without stopping. The problems of planetary gear bearing life and lack of emergency lubrication system can also be solved during this shipboard modification process..." "Although I haven''t made detailed calculations, it is preliminary estimated that if these measures are implemented, they can at least increase the maximum takeoff weight of the aircraft from 4 tons to 4.5 tons, and the external load will also increase accordingly. At least it can ensure that it can carry submarine search weapons at the same time. equipment and two anti-submarine torpedoes. In addition, the range is increased, and even under large load conditions, it can meet the requirements of the Army Aviation Force across the target strait and the mid-to-long-distance anti-submarine flight requirements of ship-based helicopters..." ??Yang Yangsao, Wang Zhilin put forward many suggestions for improvement. ?The slow calculation speed of the computer is not all bad, at least it gives him enough time to think. A lot of the content here was what he thought of while waiting for the results. Xiao Wang, what you are talking about is actually the next key research area for our group, the localization and improvement of rotors, tail rotors, and main reducers. We also applied for a project under the Seiko Plan in the middle of the year. ?Guo Jingshan looked pleased at first, but then he looked embarrassed: But Zhi-9 is still in the state of serial assembly delivery, and there are really no conditions at the moment..." Can you consider asking the French aerospace company to improve the parts delivered? After all, their own models also have the same problem... Its difficult. ?Wang Zhilin was interrupted by Guo Jingshan raising his hand when he was halfway through his thoughts: 90 years later, although the French manufacturing plants were still delivering ordered engine parts to us, their design units technical team had all withdrawn and stated that they would not respond to any of our technical requests. Later we tried I contacted them several times but got no response. Otherwise, with a complete set of technical information, the delivery of the 9A would not have been delayed until this year. " In this case, is it possible to put a hot face on someones cold buttocks? "this" Obviously, the latter is right. But Wang Zhilin is still a little unwilling: Then lets improve the straight 9... Lets take it step by step. Now at least we have a clear direction to solve the problem. All thats left is to chew hard bones one by one ?Guo Jingshan sighed softly. ?Everyone wants to solve the problem in one step, but for China Aviation Industry, there are indeed few such opportunities. ? He ??has been in the industry for more than 30 years, and he only heard that he met such a **** when the 606 Institute was engaged in turbojet 14 last year. ?Its a pity that they are not in the helicopter business. Although both fixed-wing aircraft and helicopters can fly, the basic principles are very different. Under normal circumstances, few people cross the border like this. Okay, then I Just as Wang Zhilin was about to pack his things and return to the office, a rapid knock on the door came from behind him. Mr. Guo, there is a call from Factory 122 to tell you that our main reducer is available! ??The two people who were immersed in the drawings looked up at the door almost at the same time: "ah?" "real?" (End of this chapter) Chapter 452 import substitution Chapter 452 Import Substitution The family knows their own business. As part of the Bingcheng Aircraft Industry Group, Factory 122 knows how much vinegar there is in the bottle. Guo Jingshan and Wang Zhilin still know clearly. Simple things like the production point transport 12 are okay, but when it comes to manufacturing standards that are in line with international standards, there are many places where it falls short. Not to mention the transmission, which is the most important core component of the helicopter, even the main rotor and tail rotor can only be imported from France. Now they suddenly say that they have solved the problem of the main reducer. It sounds true. Not quite in line with the fundamentals of manufacturing. ? ? It''s like a child who has always been at the bottom of every exam suddenly takes the first place in the school. The parent''s first thought is definitely that there is something fishy in it, and he is afraid that he is cheating. Similarly, the first reaction of the two people in the office when they heard the news was not surprise, but to further inquire about the visitor. After all, Wang Zhilin is just a rising young engineer. It is difficult to speak directly in this situation, but Guo Jingshan does not need to care about that and asked directly: Tell me, whats going on? I still dont know whats going on at Factory 122? How come the main reducer problem was suddenly solved? ??The person who just knocked on the door just took a breath and seemed to have rushed upstairs: Its not something Factory 122 can solve on its own. They said there are suppliers who can provide new raw materials and parts. They said they couldnt explain the details on the phone. Please go to the factory and have a look. He is just a secretary who is purely engaged in administration and is not responsible for any technical work. Ask me to go ?? Guo Jingshan lowered his head subconsciously, and then realized that the phone receiver on his desk had been pushed aside by the pile of drawings that had just been laid out. No wonder he needed to call himself through someone else. Wang Zhilin scratched his head in embarrassment when he realized that he was the one causing the trouble. However, seeing that he had just solved a big problem, Guo Jingshan didn''t say much. He just put the receiver back in place, then stood up and picked up two pieces of work clothes from the hanger next to him, put one on himself, and then put the The other one was thrown to Wang Zhilin. Come on, come with me to take a look, and report what you find to the factory. Hey, okay! As the engineer responsible for the research and development of the straight-9 transmission system, Wang Zhilin naturally went to Factory 122 on weekdays. However, the significance of the fact that he was personally called and taken there by the chief engineer in the past and today is naturally very different. ??When the two people took the commuter bus in the factory area to the workshop, a middle-aged man wearing a safety helmet ran up to Guo Jingshan in small steps, and murmured as he walked: Lao Guo, Ive been waiting for you. The line I called you just now has been busy all the time. Im really anxious. Come on, come on. Today After speaking, he took one of the latter''s hands and prepared to walk inside. It wasn''t until he turned around that he realized that there was another person following Guo Jingshan. He immediately stopped moving and his expression became a little stiff: This little comrade is... ??As the general manager of Bingcheng Aircraft Industry Group, he still has to maintain a good image in front of outsiders. ??If the scene just now spreads out, I''m afraid it will have a bad impact. Oh, a young comrade from the institute, when the secretary came to see me, he happened to tell me that he had found the key problem of the weak power input of our naval helicopter, so he brought him with him. ?Wang Zhilin, who was standing slightly behind, was in a daze from the moment he entered. ? General Manager Cui Wenxue, he had only met him twice before when he was first hired for training and at the group meeting at the end of last year. He seemed to be a very old-fashioned little old man. Thats the result? Wang Zhilin didn''t react until Guo Jingshan introduced himself. This opportunity to show his face in front of the leader has almost been fed to Mr. Guo. If he can''t take it anymore, he can''t blame others. Hello Mr. Cui, I am Wang Zhilin from the Structural Design Office. Wang Zhilins self-positioning is very accurate. Compliments must be of similar status to be valuable. As a little fish like me who has just joined the company in the second year, talking too much will only annoy the general manager. It is enough to just introduce my position and name. ??Anyway, judging from today''s plot, there will definitely be no shortage of opportunities for him to show up later. Hello, little comrade, come here too. As expected, Cui Wenxue didn''t pay much attention. He just said something casually, then turned around and led the two of them towards the workshop. ?Of course, the hand that just grabbed Guo Jingshan must have been loosened. "Two days ago, I received a fax from Qi City, saying that they can supply us with a new grade of bearing gear steel. I didn''t pay much attention to it at first. After all, I often received this kind of news in the past. In the end, most of them just let it go. As a result, someone directly sent me an encrypted email today, which contained several steel samples and a performance test report. " ? Cui Wenxue, who was talking before, paused here, seeming to calm down, and then continued: "I didn''t understand it at first. I thought they were car bearings and gearbox gears. I was also wondering why the quoted price was so much more expensive than the parts imported from Japan. After checking the data for a long time, I realized that they meant they were for helicopters. Then I quickly brought my things and came to find the engineer in the factory..." Qi Shi, the abbreviation of Qiqihar in its surrounding areas. ?Although Beiman Special Steel has been merged into part of Northeast Special Steel, after all, it has only been a year, and most people are still accustomed to treating it as a separate factory. As for the most famous product of Bingcheng Aircraft Industry Group in the 1990s, it was definitely not its "main" products such as helicopters and transport aircraft, but cars. Songhuajiang brand mini-van. From the late 1980s to the early 21st century, it was the most mainstream car model on Northeast Street. He is also the main contributor who helped the entire group survive this cold winter. Especially the Dongan Engine Company below. If it had not introduced and absorbed the gasoline four-cylinder engines for mini-vehicles and installed them in large quantities, it would have been in ruins long ago if it only produced turboprop 5s that more than half of the people in the aviation industry had never heard of. . In fact, the reason why Cui Wenxue became the general manager of the group at such a relatively young age was because he started in charge of Songhuajiang Automobile. So its no wonder that he was always thinking about car parts at first. As they spoke, the three of them had reached the depths of the factory, where a group of people wearing blue or gray work clothes were surrounding them. I dont know much about airplanes. Let the responsible comrade in the workshop introduce the specific situation. Cui Wenxue has been here for a while, but Guo Jingshan has just arrived, and the chief engineer of the group does not see him every day. A group of people hurriedly said hello: Mr. Guo, you are here. In the minds of those responsible for building aircraft in Factory 122, Guo Jingshans status is probably slightly higher than Cui Wenxues. ?Although you can make a lot of money by building cars these days, who can still dream about aviation? In the past few years, it was Guo Jingshan who was running around under pressure and even went to the Navy Commander Liu to issue a military order before signing an order for the troops stationed in Hong Kong Island to build Zhi 9 with their own funds. The big job was changed. In fact, even Cui Wenwen built cars in order to provide sufficient funds for the aircraft project. "Mr. Guo, I took a look at the test data of this sample. The surface hardness is really good. The accuracy of the gear bearing components we produced before can only reach E-level. The original ones made by the French are D-level, so if the lifespan cannot be improved, they can only be imported. , if new materials are used, even if the previous processing accuracy is maintained, the overall service life can be increased to 4-5 times the original, which is more durable than imported parts..." There are also transmission bevel gears. This steel not only has high surface hardness, but also has good core toughness..." The several workshop engineers led by each other talked to each other and introduced the general situation of this material to Guo Jingshan. To sum up, it is very strong. ?As long as the supporting technology can keep up, the entire transmission system that has troubled our helicopters for more than ten years will not be a big problem. ??If the processing accuracy can be improved by the way, then lifting the original goods will not be a problem at all. (End of this chapter) Chapter 453 Non-staff deputy director of the Science and Technology Commission Chapter 453 Non-Staff Deputy Director of the Science and Technology Commission After talking about the new steel, Wang Zhilin, who was brought over by Guo Jingshan, pressed several transmission system design drawings on the blackboard with magnets and began to introduce his previous findings: To put it simply, the tail output bevel gear of the main reducer does not meet the requirements and needs to be modified. However, I just heard from Mr. He that the core toughness of the new material is higher, which can save a lot of effort..." The production and manufacturing of complex equipment is like this. One move affects the whole body. If the material itself is not good, it can only be compensated through more extreme structural design. But on the other hand, if you can come up with materials and processes with incredible performance, then there will be more room for compromise in the design. After listening to Wang Zhilins briefing, the first reaction of several other engineers was to be filled with indignation: Fuck, are the French hiding this from us? I thought French engineers were quite honest before, but I didnt expect that After all, foreigners know people well but dont know their hearts Upon seeing this, Wang Zhilin quickly put down the mineral water bottle he had just picked up: Everyone, to be fair, the French have not changed the design of the main reducer in their latest SN365N2, so I guess they themselves may not know what the problem is "this" Cui Wenxue, who was next to him, did not join the discussion, but just kept listening. ?Although he doesnt understand airplanes, he understands mechanics. As for mechanical processing, one knows everything. There is a huge difference between designing an airplane and designing a car, but there is not that big a difference between building an airplane and building a car. If we look at some specific parts, the difference may be even smaller. So companies that build aircraft often cross borders to build cars. This is not only true in China, but also abroad. ?For example, Saab Automobile was formed by the merger of Swedish Aircraft Co., Ltd. and Scania Automobile. ?Subarus predecessor was simply Nakajima Aircraft Company. Therefore, from the very beginning when he planned to build a car, Cui Wenxue did not oppose the two businesses. Instead, he established the principle of mutual help and mutual promotion. ??He has a dream that he has never mentioned to anyone before, which is to make Bingfei Automobile the top car company in the country, or at least in the Northeast region. Now this dream has been partially realized. In the field of mini cars, Songhuajiang has indeed occupied more than half of the northern market. But if you want to go up, it may not be easy. Therefore, when several people next to him were discussing the design of the helicopter''s main reducer and how to make local improvements, Cui Wenxu''s mind was not idle for a moment. He had just heard from the engineer in charge of quotation that the sample sent with the letter was about half cheaper than the French parts, and compared with the old domestic parts, it was only about a quarter more expensive. It''s about a level, but the performance is better than the original product, and the price/performance ratio is very high. In other words, my first reaction was that the quotation was expensive. This was just because of the industry differences caused by the differences in design, manufacturing requirements and chemical treatment between automotive parts and aircraft parts. It was not about how expensive the steel itself was. ?Then if we can cooperate with Beiman Special Steel to replace some of the imported parts in Songhuajiang cars... ?Cui Wenxue''s thoughts couldn''t help but come alive. Songhuajiang''s current main sales force is the second-generation HFJ6350 based on the eighth-generation Suzuki carry ST90V. These days in the north, especially in most cities outside Shanhaiguan, you can see it almost everywhere on the streets, from taxis to police cars. The figure of this gadget. ??Although it was not imported from Suzuki but through the second-tier dealer Daewoo of South Korea, it still uses a large number of Japanese-origin parts. Although the 0.8L small-displacement engine and 4-speed manual gearbox have been introduced and produced by Dongan Engine Factory, many key components are still not domestically produced. Even the hub bearings for the four wheels need to be purchased from Japan''s NSK Company. They have also tried using domestic models such as Wanxiang on a batch of vehicles before, but the user feedback was very poor. Even though NSK''s products are much cheaper than the SKF used in European cars such as Volkswagen, they still have to use imported parts in foreign exchange, and the price is equivalent to RMB 100 per piece. Cui Wexue also inquired about the profit here, which is about 70%. In other words, including shipping and channel fees, the cost of this thing is no more than 30 yuan. If it can be produced domestically, the cost will be reduced by at least half. Songhuajiang sells 50,000 cars a year and can save 10 million in costs. ?This does not include the gearbox and engine... You should know that Dongans 0.8L engine is not only used in Songhuajiangs own cars, but also in many mini cars and even sedans. ?Most Songhuajiang users are engaged in operations or official procurement, and do not care too much about the suppliers of various vehicle parts. As long as they can be used, they will not lose any reputation if they switch from imported to domestic... ?After calculating the approximate benefits and losses, Cui Wenxue felt that he had to do something. Its not just for the development of the automobile industry. More importantly, with the rapid development of China Aviation Industry in the past two years, the group''s aviation business will definitely gradually increase, and if he, a general manager with a background in car manufacturing, still wants to secure his position or even go further, he must get Just come up with some hard results worth bragging about. ?? Bingcheng Aircraft Group was able to receive faxes and letters sent from Northeast Special Steel, and naturally Chang Haonan was behind it. At this time, others were in a conference room of the Commission of Science, Technology and Industry for National Defense. ?A few days ago, after he made the phone call to the Science and Technology Commission, he received the Seiko Project file compiled by Secretary Lan Xinzhi of the Science and Industry Commission that afternoon. The domestic substitution of key helicopter parts submitted by Bingcheng was the first project Chang Haonan saw after opening it. In the list of key parts listed, 80% are gears or bearings, which are simply tailor-made for the matter at hand. ??If it weren''t for the fact that the call was completely impromptu, he would even wonder if someone was receiving benefits and deliberately put this thing in the first place. Today he originally planned to return the files, but as soon as he entered the Science and Technology Working Committee, he was detained by Ding Gaoheng himself before he could find Secretary Lan. Said there was a meeting. Meetings are small. To sum up, they are the heads of the Science and Technology Commission, plus Chang Haonan. The person in charge of the minutes of the meeting was Secretary Lan. ?Seeing Chang Haonan being brought in by Ding Gaoheng, he was almost shocked and threw away the pen in his hand Previously, these high-level secretaries called Chang Haonan as Deputy Director Chang in private, but in the end it was just a joke. At most, they added some envy that this young man who was much younger than them could hang around Ding Gaoheng on a daily basis. ??As a result, good guy, take him directly to hold an internal meeting at the ministry level today? Are you no longer pretending? Is he really just a non-staff deputy director? Fortunately, Lan Xinzhi had been working as a secretary for many years. Although he was deeply shocked, his face remained calm and he just made a gesture to Chang Haonan who was sitting next to him. Comrades, I have called you here for this meeting today, mainly because I want to hear what you think about the adjustment of our departments organizational structure. Ding Gaoheng''s opening remarks made Chang Haonan a little nervous. ?This would be too disrespectful to regard oneself as an outsider... (End of this chapter) Chapter 454 Establish the Equipment Industry Department! Chapter 454 The Equipment Industry Department is established! Next year, that is, in 1998, there will definitely be a large-scale organizational adjustment. ?Those who can sit in this small room are all their own people, so Ding Gaoheng also got straight to the point without any nonsense: "Although the specific reform methods of various military industrial groups have not yet been determined, the administrative functions of state-owned enterprises must be taken back. Therefore, what is certain at present is that our Science and Technology Commission will be reorganized. Currently, the National Defense Department of the State Planning Commission and the departments of various military industrial units Administrative functions, as well as the management of some military-to-civilian enterprises, will be placed under the reorganized new Science and Technology Commission. When the news came out, the originally tense atmosphere in the entire conference room naturally relaxed. ?Although the units at the ministries and commissions level have the same level on paper, in fact they are divided into three, six or nine levels. Even people who are truly out of vulgar taste always need a platform to realize their ideals. Whats more, most people are not that otherworldly. So, everyone hopes to have more authority in their hands. Of course, Chinese people are very restrained, so it is not easy to celebrate this kind of thing publicly. Even in a small gathering like this, everyone just applauded with joy on their faces. ?However, someone soon discovered that something was not quite right. Director, in the past, the management of military-to-civilian enterprises was nominally the responsibility of each unit, but in fact, we were centralized and coordinated with the Ministry of Machinery Industry. There shouldnt be much change, right? The person who spoke was the chief of staff. ?Of course, not all department-level leaders can participate in todays meeting. They are mainly the chief economist of the Science and Technology Commission and members of the leadership team. He is mainly responsible for the matter of converting the army into civilians, so I ask this question. Thats the second thing I want to say. Ding Gaoheng knocked on the table lightly, and the room suddenly became quiet: "Based on the current wind blowing from above, further opening up of the market is inevitable, and superiors are also very confident in joining the World Trade Organization. Against this background, many people have suggested abolishing the current Ministry of Machinery Industry. and the Ministry of Metallurgical Industry. Cancel Compared with the first news, the second news is obviously not as happy as everyone. Because the defense industry cannot exist independently from the country''s overall industry. These two units are almost the same-level departments with the most connections after the National Science and Technology Commission and the Surgery Working Committee. Now that they are suddenly said to be gone, it still makes people feel a bit complicated. On the other hand, an attempt was made to abolish the Ministry of Machinery Industry in 1987. As a result, many industrial fields that had been struggling to keep up lost investment and protection and were completely destroyed. The impact was very bad. So it was added back in 1993. Isnt it that the current Ministry of Machinery Industry... personally decided to rebuild it? Why is it canceled again? ?Most people are still confused about this. "There is no way. These institutions are related to the degree of market openness. Some people are using the WTO negotiations to put pressure on us...including the Planning Commission, which also needs to be renamed the Development Planning Commission. To be honest, it is quite difficult to keep our Science and Technology Commission. Already Ding Gaoheng shook his head slightly and explained everyones doubts: "The problem now is that the superiors also know that industrial development cannot be without a coordinating unit, so..." ?His eyes swept across the people sitting in front of him: The State Economic and Trade Commission established a Metallurgical Industry Bureau to assume some of the functions of the current Ministry of Metallurgical Industry. As soon as he finished speaking, everyone''s eyes almost immediately focused on Chang Haonan. The latter also immediately understood why he was being dragged into such an internal-looking meeting. After all, he had mentioned inadvertently before that he hoped to establish a department specifically in charge of equipment manufacturing under the Committee of Science and Industry, specifically responsible for key projects such as heavy-duty die forging presses that require concentrated national efforts to promote. At least Ding Gaoheng and several deputy directors should have heard of it. ?Even if everyone didnt pay much attention to it at the time, by now, they should have remembered it. I remember, Xiao Chang seemed to have said before that our Science and Technology Committee could... Zhang Dongxu, another deputy director sitting opposite Huai Guomo, spoke first. Halfway through, he looked at Ding Gaoheng, who was sitting in the first place. After the latter nodded, he briefly described Chang Haonan''s thoughts at that time, and then confirmed with Chang Haonan. road: Is that so, Comrade Haonan? Lan Xinzhi, who was taking notes just now, has also closed the meeting minutes with great insight. ?In this kind of meeting, of course all the content must be written down, but what needs to be recorded as is and what needs to be handled flexibly is the time to test the secretary''s skills. Obviously, he has always been good at this. Chang Haonan nodded: "Actually, I didn''t think about it in the long term at that time. It was just because when I discussed heavy-duty die forging presses with Comrade Yan Yongnian, oh, he was an old professor at Qinghua University and a student of Academician Shen Hongshen, I felt that A unit in this area would be more convenient. Its not that hes being modest here, its just that its not convenient for him to show too much foresight at this time It is unreasonable to think that you knew something that Ding Gaoheng didn''t even know months in advance. Even if he said this, it was shocking enough. I feel a little ashamed... The third deputy minister, Shen Junrong, put down the teacup in his hand: When I first heard this idea, my first thought was that young comrades would integrate quickly, so they would help our Science and Technology Commission fight for power... Now it seems that it is still narrow-minded..." Seeing that the situation was developing rapidly in a direction beyond his control, Chang Haonan quickly added: "Thank you for the praise from all the seniors and leaders, but if you continue to praise me, I''m afraid I will float..." The conference room was suddenly filled with cheerful air. "Hahaha, if you can say this, it means you can''t float." ?Although Zhang Dongxu said this, he still did not continue. After a brief moment of relaxation, the discussion quickly got to the point. No matter how we viewed Comrade Xiao Changs suggestion before, we must think about it seriously now. Ding Gaoheng signaled to Lan Xinzhi that he could start recording again, and then continued: "The functions of the former Ministry of Machinery Industry are very complicated. Americans and those who advocate its abolition are not fools. We can''t completely cover it up with a department-level unit. Therefore, How to build this new department, what to manage, and what to abandon are the key points. The Ministry of Machinery Industry is the largest ministry in Chinese history. Even after reorganization, it is still a behemoth, larger than the entire Commission of Science, Technology and Industry for National Defense. Xiao Chang, tell me what you think? Everyones eyes turned to Chang Haonan again. ?The idea was originally his, so you should listen to his own opinion no matter what. ? Lan Xinzhis hands were shaking when he was writing the names of the speakers. ?In this record book, except for the recorder, that is, himself, no names below the department or bureau level have ever appeared before. Chang Haonan had been drafting for a long time before this, and he answered almost immediately: "Dear heads, I think it must be to grasp the big and let go of the small. The former Ministry of Machinery Industry used the method of overall planning for every detail. We cannot have so many people, and it may not meet the requirements of the new era. Therefore, as long as we focus on those who can It is enough to manage the key equipment and fields that affect the development of the country. In this way, a lot of technological development can be promoted. " As for the name of the new department, how about just calling it the Equipment Industry Department? After Chang Haonan finished speaking his thoughts, he looked at the group of big guys next to him. When a leader really wants to hear the opinions of his subordinates, he will definitely not express his opinion first. So Ding Gaoheng remained silent. The Equipment Industry Department... is pretty good, and it sounds like it has something to do with the military industry. Zhang Dongxu nodded first. ?Of course, on the surface, you say you agree with the naming, but in fact it is equivalent to expressing your support for the entire idea. ? He ??is from the Ministry of Electronics Industry. He had a good impression of Chang Haonan when he worked with the 14th Research Institute on jamming equipment and the subsequent early warning aircraft project. "Yes, but ours is not weapons and equipment, but heavy manufacturing equipment. Let''s play a word game with them..." The chief of staff also said that multiple departments would only be a good thing for him, so it was naturally impossible for him to object: In addition, I would like to suggest that universities under the former Ministry of Machinery Industry can also be included? He was able to think of this because of the painful experience in the past. When the Ministry of Shipbuilding Industry was transformed into China Shipbuilding Industry Corporation and placed under the management of the Commission of Science, Technology and Industry for National Defense, no one paid much attention to this matter until he went to Shanghai Jiaotong University. Being placed under the Ministry of Education made everyone regret it... "This...maybe not appropriate, at least you can''t eat it all." Huai Guomo, who had been silent just now, shook his head: Our Equipment Industry Department is not, at least in name, the successor to the original Ministry of Machinery Industry. It only needs to have a little bit of duplication of functions. If even schools are included, then there will be no performance at all We can consider moving Luzhou University of Technology over. In the future, the aviation industrial park will be located in Luzhou. Why should there be a school belonging to our Science and Technology Commission to provide supporting facilities? ?Chang Haonan remembered the report he wrote a few days ago. But isnt Hunan University better? ??Some people soon expressed different opinions. Didnt I tell you to keep a low profile? After all, we are still negotiating for accession to the WTO, so the WTO must give some face... Someone explained. By the way, I remember there is also Yanshan University? Its under the Ministry of Machinery Industry. What university is Yan? Yanshan University. What mountain university? Obviously, the schools presence is not very strong. Lan Xinzhi once again closed the notebook in his hand. ?This kind of haggling scene, like buying vegetables at a wet market, must be protected after all. (End of this chapter) Chapter 456 Mountain Eagle, a miracle created in two and a half months! Chapter 456 Mountain Eagle, a miracle created in two and a half months! The Commission of Science, Technology and Industry for National Defense has three system engineering departments responsible for special business. Another brand of the company is the National Space Administration, which is also responsible for some projects related to the electronics industry. However, because the Ministry of Electronics Industry is still there at this time, and even after next year''s reorganization, there will still be the Ministry of Information Industry, so there is not much business in this area. Mainly focused on aerospace; The Second Department is responsible for organizing and implementing the nuclear and weapons industry military-to-civilian development plan and major civilian projects. It is also the National Nuclear Accident Emergency Office; The third division is similar to the second division, except that it is responsible for the aviation and shipbuilding industries. So Chang Haonan basically dealt with the System Engineering Division III in the past. ?But it doesnt matter, soon after returning to Ding Gaohengs office, Chang Haonan met Zhang Yong, the director of the Second Division. Quite young, for his position, he can definitely be called a young talent. Zhang Yong himself has always thought so in the past. Until I shook hands with Chang Haonan. None of the directors of the Systems Engineering Department are members of the Science and Technology Commission, so they did not attend the meeting just now. Zhang Yong rushed to Ding Gaoheng''s office just after receiving a call from Lan Xinzhi. office. Then I met Chang Haonan, whose name I had only heard but not his person. "Director Ding, Comrade Haonan, Secretary Lan has just told me about the need for a large-scale die forging manufacturing process development project here. I think, since Jiangcheng Heavy Machine Tool Factory is now under the Ordnance Industry Corporation, then How about directly linking the project to 201 Institute? 201 is ?These military research institutes established back then were complex. Chang Haonan had heard about many units in the electronics industry and aerospace system, but he was not clear about other systems. Its the Northern Vehicle Research Institute, located in Huaishu Ridge, the capital city. Its quite convenient to run there if you need materials. Zhang Yong on the side quickly explained. No matter how much autonomy Chang Haonan has in this project, the necessary formalities and documents are still indispensable. Even if he does not need to handle it personally, being in the same place can save a lot of trouble. ?This was the best arrangement he could come up with on the way over just after receiving the call. ?Of course, there is inevitably a bit of selfishness in this. ?However, Zhang Yongs little point was immediately broken by Ding Gaoheng: I remember that Institute 201 had applied for several projects related to the forging of heavy vehicle parts before. Director Zhang probably had a plan to lay eggs this time. Zhang Yong was a little embarrassed when his thoughts were exposed, but Chang Haonan didn''t care: Mutual promotion, if we can give some help and inspiration to comrades in the weapons industry system during the advancement of this project, that would be a good gain. ?Things are divided into priorities. The latter now has a heavy burden on its shoulders. Of course, it is no longer possible to spend time alone on the research of specific vehicle models, but it can definitely help during the research process. Just like the bearing industry. After all, your project takes up other peoples staff and spends their money. If you dont leave anything for others, its not a good idea. Furthermore, his original idea was to rely on key projects and key technologies to drive industry development. Then thank you so much, Comrade Haonan. ?Zhang Yong, who finally found the steps, quickly expressed his gratitude: Because of Project 9910, the research and development of a new generation of armored vehicles and various chassis are now going hand in hand. As a result, the power has been dispersed. If I can borrow your light, it will be a great blessing..." This sentence is on the one hand to thank Chang Haonan, and on the other hand, it is to explain to Ding Gaoheng. ??It''s not that I want to have **** for free out of selfish interests, it''s because the time limit given by the 9910 project is too tight and I have no choice. Ding Gaoheng was just joking casually. He clicked on Zhang Yong just in passing, so he would not get entangled in this kind of thing. He just nodded: "Then Zhang Yong, please stay busy these two days and handle this matter as soon as possible. Xiao Chang, remember to compile a list of the core members you want. Although it is said to be pre-research, we give priority to ensuring the resources of this project, so Dont worry about the depth of your research. "clear!" "OK." At the same time that Chang Haonan began to work with Zhang Yong on the pre-research work. A few days later, Yunmachang, Qianzhou Province. ?As the door of the assembly workshop was slowly opened, a Dongfeng 140 truck slowly drove out of the factory. On the makeshift viewing platform not far away, the crowd who had just been watching suddenly burst into applause, and even two firecrackers were set off next to it. ? 20 years later, firing off cannons near an aircraft that has just arrived will definitely make the safety officer''s blood pressure rise, but now this skill is not so strict. Of course, for such a large formation, the object of celebration is definitely not the second-generation Dongfeng, which is more than ten years old, but the small and small aircraft hanging behind it. ??If you look at the tail of this aircraft, you can actually see the more obvious characteristics of the J-7 at a glance, but if you look at it from the front hemisphere, it is definitely a brand new aircraft. ? Bubble-shaped tandem two-seater cockpit, pointed double delta wings with large side wings, DSI air inlet, and an oversized radome in the nose part to accommodate the radar that may be installed in the future... It is naturally the No. 01 prototype of Coach 9. Chief Engineer Sun Huizhong followed the plane. The sunlight outside the factory directly shone on his face, causing him to subconsciously turn his head slightly. Then he saw the workshop workers standing in line next to him. ?Sun Huizhong almost instinctively extended his thumbs to them. It has only been a little over two months since I came back from Beijing with the design and manufacturing plans. This aircraft completed the entire manufacturing process from riveting to final assembly at an incredible speed. Although about a quarter of the parts can be used in common with the JJ-7, it is definitely an achievement worthy of special mention. This tractor you have is quite special. When I see TV, the tractors are all very short... ?? Secretary Liu, who came over to observe in the middle of the auditorium, applauded and whispered to Lin Haijun, general manager of Guihang Industrial Group, who was standing next to him. ??He has no work or academic background in the aviation field, but these days, he has asked his secretary to find many public magazines to supplement his knowledge. ??The reason why I came here from Zhucheng on this trip was not because Secretary Liu suddenly became interested in airplanes, but because there was really nothing he could do. ?Although the Coach 9 project is not a big deal for the aviation industry, its importance to Guizhou Airlines and even the entire Guizhou Province is absolutely inestimable. In the context of the late 1990s, who wouldnt want to attract investment? ??But with the conditions in Guizhou Province, let alone foreign companies, even companies from developed coastal areas rarely come to invest and build factories. ?If you want to keep people in the province well fed, you can only rely on these old military industrial enterprises from the third-line construction period. So while other places are scrambling to clear out "backward" state-owned enterprises to make room for new investors, Guizhou Province still pays more attention to Guizhou Airlines, which is originally small and transparent. ?In order to promote the final assembly of this prototype aircraft, Secretary Liu even personally set up a working group to provide all possible logistical support to the Yunma Factory. ? And the latter did not live up to his expectations. Not only did the final assembly roll off the assembly line in two and a half months, it also indirectly created a lot of benefits for the province. ?Now that this plane has finally rolled off the production line, even if he is not a biological father, he is at least a godfather, so it is natural for him to come and see it with his own eyes. Hearing this obviously unprofessional question, Lin Haijun next to him smiled bitterly and explained: Our conditions are limited. It costs millions of dollars to import a tractor of the kind you mentioned. Lets wait until we have money later... After the first flight of the J-10 No. 01 prototype, although Guizhou Airlines has received some funding from the No. 10 project, it is still so poor that it is about to become a trousers. Naturally, it has to spend its limited funds wisely. Just rush to build two prototypes of the Coach 9. As for some details, you will definitely not care about them. Speaking of which, do we have any confirmed customers who want to buy this aircraft? ?In Secretary Lius simple understanding, no matter what is created, it must be sold to be profitable. ??Had this issue been put aside two months ago, it would have been quite embarrassing - after all, this aircraft was actually built by Guizhou Airlines with its own funds, and it was later funded as the No. 10 Project technology verification aircraft. ?But now, Lin Haijun can stand tall and answer: Yes, it will replace the original JJ-7 equipment for aviation schools and training units. In addition, our Bayi Aerobatic Team has also taken a fancy to it. There will definitely be opportunities to appear in the spotlight in the future..." Thats good, thats good (End of this chapter) Chapter 457 The automobile industry is about to be reshuffled Chapter 457: The automobile industry is about to be reshuffled Until the end of the entire assembly roll-off ceremony, Secretary Lius mind was still echoing what Lin Haijun said before. It costs millions of dollars to import a tractor like that ?It was hard for him to imagine why a small car that looked ordinary could be sold for such a high price, but it was reasonable and the other party could not help him on this issue. Therefore, after the celebration banquet at noon, he was a little drunk and went to find Lin Haijun before getting in the car and leaving: Old Lin, why is it so expensive to import a car like the one you mentioned this morning? It costs millions of dollars to import? The latter actually drank less than Secretary Liu, but he couldnt drink enough and was already a little unable to stand at this time. ?But to answer this kind of question, you dont need to be sober: Although this car is not big, its technical content is not low...One is...it requires a particularly large torque to tow those...large aircraft weighing tens or hundreds of tons." ?Lin Haijuns pronunciation is not very clear, but fortunately he can still be understood: Furthermore, the driving of the vehicle must be guaranteed to be stable. The precision of the chassis, wheels, etc. is very high. In addition, in order to avoid vibration of the engine, electricity and hydraulic equipment are generally used, which is also a big problem..." After talking about a few questions intermittently, he paused slightly. Just when Secretary Liu thought the other party had finished speaking, Lin Haijun suddenly continued: Actually...actually these are not important. This car shouldnt be so expensive in the first place, and...its not because we cant build it that they dare...dare to ask for such a high price..." ?This is exactly what the former wanted to ask next: Well, Lao Lin, do you think that with our technical level, it is impossible to build this car? Even if we use some imported parts? "Parts with that level of precision are all sealed to us abroad. Not to mention imported ones for assembly. Even if the tractor we buy breaks down, it has to be repaired by someone from their manufacturer. We are not allowed to be exposed to the maintenance process at all, especially the Germans. As for Goethehof''s car, my friend who works on the ground at the airport said that it costs hundreds of thousands to repair a wheel..." Half-drunk and half-awake, Lin Haijun took the opportunity to vent his dissatisfaction. Although Secretary Liu next to him also felt that the foreigner was a bit bullying, he was about to return to the provincial capital for a meeting. He really had no time to continue listening to these contents. He saw that the other party''s topic became more and more crooked, so he had to interrupt: Well, Lao Lin, you havent said yet whether its possible for us to build it ourselves. There is also a special vehicle factory under the Aerospace Corporation of China in our province. Can you try it and see if we can build airplanes and rockets... In this era, the military-industrial system itself was a small society. Although the barriers between it and the local areas were weaker than before, they were still quite obvious. ?This is why the higher authorities are eager to carry out de-administrative and group-based reforms. In short, even Secretary Liu is sometimes not clear about the relationship between the head offices under the Science and Technology Commission, especially the Aerospace Industry Corporation and the Aviation Industry Corporation. It sounds like there is not much difference. ?Lin Haijun did not answer the question immediately, but just showed a strange expression. After hesitating for a while, he said: "It''s difficult...it doesn''t mean that running on the ground is necessarily easier than flying in the sky...I guess..." ??He originally said that there was basically no possibility of it being developed within ten years. But as he spoke, he saw Sun Huizhong, who had just had a round of drinks with the workers in the assembly workshop, and a young man next to him, who also seemed to have the surname Lin. Even last year, Lin Haijun would not have dared to think that his Yunma Factory could build an aircraft that looked so advanced and modern. Moreover, as a second-level company leader under the Aviation Industry Corporation, he has no direct subordinate relationship with Secretary Liu, but the other person is a whole level higher than him, and he is still hanging around in the other party''s territory, so it is difficult to talk to him. Too direct. So I changed my words when I said it: I dont know much about the specific technology of the vehicle. I guess it will be a bit difficult in a short period of time. Youd better be cautious. The original meaning of this sentence is actually to pour a basin of cold water on it. Even if this thing can be produced in China, there is a high probability that developed regions will be the first to eat this crab. Its not like our Yunma Factory has never built cars. To put it mildly, it is called a backward product, and if it has a low EQ, it is industrial waste. As for the aerospace industry system, it has nothing to do with us. We are not a family, and I really dont know the situation, but you should still consider it... Under normal circumstances, Secretary Liu would probably have heard the implication, but he had just spoken some heroic words at the offline ceremony, and drank some wine, which led him to directly regard Lin Haijun''s words as encouragement. ?????Its a bit difficult in a short time, doesnt that mean it can be done? As for the so-called "be cautious", it means that you should do research before doing anything. So after getting in the car, he said directly to the secretary in the passenger seat: Xiao Hou, remember, when you get back, go to the Department of Machinery Industry and ask them to summarize the overall development of the national automobile industry and report to me as soon as possible. ??Although Secretary Liu didn''t fully understand Lin Haijun''s hint, he still had some idea of ??what the industrial standards of his three-thirds of an acre of land were like. Even if you really want to build special vehicles, you will definitely have to find suppliers from developed areas to cooperate and make money for assembly here. It is absolutely a fool''s errand to keep the entire industry chain in the province. Hey, okay, Ill do it this afternoon. In fact, although the Chinese automobile industry at this time is still calm on the surface, there are already undercurrents under the water. ? Its just that this impact has not yet been fed back to the vehicle manufacturers. As for users, the level of perception is even lower. ?Shanghai, Japan Seiko (NSK) Bearing Office in China. ?Sales supervisor Qing Jingbin held a folder in his hand and knocked on the office door of the office manager Haneda Shunsuke. Mr. Haneda, our forecast order numbers for October and November are not quite right. They are almost the same as the same period last year. ?Among many companies responsible for the bearing business, NSK entered the Chinese market relatively early and took the Chinese market as its main direction of attack. It has been several years since Huaxia was set up as a separate region and an office was established. Although it still bears the name of an office, it is actually at the level of a headquarters. Its just that NSK only has sales and after-sales business in China, so its scale is still relatively small. "How could it be? In the first half of this year, two new brands have only built factories and put into production. All wheel bearings use our products. It stands to reason that starting from May this year, there should be at least a 3-5% growth." " ??Heda Shunsuke has been assigned here since the first day the China office was established. He speaks Mandarin better than many Chinese people, and he has climbed up the ranks from a business representative step by step. He knows these data clearly. ??These days, the technology sources and cooperation methods of Huaxia Automobile Manufacturing are like eight immortals crossing the sea. Not all companies that use NSK bearings will purchase through their Huaxia office, so the impact of the two new customers is actually quite obvious. The two brands he mentioned are Jiangling Ford, a joint venture, and Qirui, China''s independent brand. ? ? The latter is said to be independent, but in fact it also purchased second-hand technology from Ford, so both companies also use NSK bearings. ?At the current growth rate of China''s automobile market, relying on these two companies, they should not worry about performance issues in the next 1-2 years. "I took a look and found that our two major customers in the past, Bingfei Automobile, which specializes in mini-cars, and Jinling Iveco, which specializes in commercial vehicles, have significantly reduced their orders to us, especially the former, who directly transferred their orders to us. The quantity has been reduced by three-quarters. Qing Jingbin put the folder in his hand on Hanedas desk. Bingcheng Auto The latter opened the document and took a look at it: "I have an impression of this company. It should be... Suzuki''s carry, right?" Yes, the annual output in the past two years has been at the level of 50,000 to 60,000, and it is very popular in northern China. ?Qing Jingbin nodded. That shouldnt be the case. Carry is different from Ford. We are the only one making their wheel bearings. Whether its Daewoo from South Korea or Wanxiang from China, the imitations are useless... ?Heda Shunsuke, who felt a little troubled, lowered his head and thought for a while, but still had no clue: Ice City is too far away from us. Go to Jinling immediately and try to find out where they got the replacement from! (End of this chapter) Chapter 458 How about giving Mr. Chang a car? Chapter 458 How about giving Mr. Chang a car? In recent times, Jinling Automobile has been enjoying a happy life. In the mid-1980s, the Iveco Daily, a model that was regarded as durable in the eyes of the time, entered the Chinese market and gained wide popularity and praise in a short period of time. In 1996, the joint venture Jinling Iveco Company was formally established, pushing the sales of this model to a small peak. And this year, that is, in 1997, at the handover ceremony of Hong Kong Island just over two months ago, the overwhelming news also quoted a lot of classic pictures of the Iveco fleet of the troops stationed in Hong Kong Island passing the Luo Wu Bridge. The symbolism of this model is taken to a new level. In the following months, orders from government business departments and powerful agencies came like snow. If nothing unexpected happens, the sales volume of the entire series of Iveco models in 1997 may even exceed the 25,000 mark. If placed more than 20 years later, this number may not be comparable to the monthly sales of a single model of some popular domestically produced cars. However, in 1997, for a car company that was only in its second year of establishment, this kind of achievement was It can be said that it has reached the sky in one step. Not to mention, Fiat Group also sent a big gift last month, directly sending Fiat, Maserati and Alfa Romeo to realize the joint venture. ?At this time, Maserati''s brand tone has not declined to the level it will be twenty years later, and it still has a place in the luxury car field. Fiat is also quite capable in the field of small family cars. As for Aloma Its always good to have someone to help you with. In short, no matter how you look at it, Jinling Motors looks like it is about to take off, and even general manager Li Liangyi is in a clear mood at this time. At this time, he was discussing the future development direction of Jinling Motors with several close associates. Mr. Li, I went to Italy this time to inspect several Fiat Group models currently in production. Deputy General Manager Feng Bin said as he took out a stack of photos from an envelope and placed them one by one in front of Li Liangyi: After the other party inspected our current production capacity before, they recommended that we try the water with a simpler model first Feng Bin pointed to one of the photos, which showed a car that looked a bit like the two-box Xiali commonly seen on Huaxia Street. Fiat Uno, right? Ive seen this model before. ?This model has been sold in China through various legal or illegal channels in the past few years, so it is normal for Li Liangyi to recognize it: But the hatchback...is not very recognized by the domestic market. It would be better to make it into three boxes, just like Xiali. Ever since various cars entered the Chinese market in the late 1980s, "having a head and a butt" has been a matter of great importance. Not to mention private users, even taxi companies have looked down on hatchbacks with a flat rear by half a grade. Two low-end models, Xiali and Fukang, have deepened this inherent impression in the market. ? Li Liangyi, as the general manager of Jinling Motors, naturally understands this matter. But Xiali was able to change from two boxes to three boxes because Jinling Motors had already increased the localization rate of all vehicles to more than 90% before that. Jinling Motors did not have the capital at this time. If it wanted to change, it would have to rely on Fiat Group. . ??However, Italians are famous for their laziness. Before the Chinese market has started, let them customize a car specially for you... Just dream. ??With this diligence, Fiat would not have entered and exited the Chinese market three times in the original timeline and ended up in despair. Fortunately, Feng Bin did not go abroad just to enjoy the Western service industry. He also did a very detailed research work and immediately found another photo: Fiat really has such a model. It is not sold in their country. It is only sold to third world countries. The chassis is the same as the Uno, but the three-box model is called...Siena. Li Liangyi adjusted his glasses and stared at the red car in the photo for a while. Feng Bin next to him also saw that his leader was quite satisfied with this model: 1.4-liter displacement, four-cylinder engine, maximum power of 73 horsepower, and five-speed manual transmission. It is obviously better than Xiali in terms of appearance design, workmanship, and power. ? Its not that he was targeting Jinmen Motors. Mainly in the late 1990s, Xiali was almost synonymous with affordable small cars with a price of 80,000 to 100,000 yuan, so it was normal for it to be used as a comparison object. ?As expected, Li Liangyi nodded frequently after hearing these data: This model is okay, but the name must be changed to make it easier to remember. In addition, the localization rate must be guaranteed, which cannot be less than...40%. ??As he spoke, he stretched out four fingers and gestured in mid-air. This is a promise Jinling Motors made to its superiors in order to obtain the qualification to produce passenger cars. He must complete it no matter what. 40%Im afraid ?Feng Bin feels that this number is a bit outrageous: "Mr. Li, Jinling Iveco has been introduced for so many years, and the localization rate has just broken through half. This Fiat new car requires 40% just after it is introduced, right..." Hey, Mr. Feng has been abroad during this period and is unaware of some situations. Ji Nan, manager of the technical department of Jinling Automobile, who had been silent for a while next to him, let out a hearty laugh: We have already carried out loading tests on a batch of new domestic parts. Starting from November this year, the localization rate of newly produced Iveco will exceed 60%. Although Jinling Iveco and Jinling Automobile are not completely equal, for him, the manager of the technical department, this kind of thing is definitely huge good news. He then added another sentence: Furthermore, the import substitution this time is all core components, such as wheel hub bearings, transmission release bearings, and gear sets. All in all, we can make a profit of at least four to five thousand from each vehicle. Is there such a thing? ??Although Feng Bin doesn''t understand technology, he still knows arithmetic. ?With Ivecos current annual sales, each car will earn an extra 5,000 yuan in profit, which is 100 million a year. ?Based on Jinling Ivecos shareholding, Jinling Automobile can get about 50 million yuan, which is of great importance to a group that is about to make a fortune. "Yes, some time ago, a classmate of mine in Bingcheng contacted me and said that Northeast Special Steel sent them a batch of samples, and the quality was no worse than the Japanese products. I didn''t really believe it at first, but after thinking about it, He is an old classmate, and we have no business conflict with Bingcheng Automobile. There is no need to come here to deceive us, so he went over to purchase a batch of samples for testing..." ?Li Liangyi, who was sitting at the top, did not join the conversation among his subordinates. At this time, he was picking up another photo and looking at it carefully. In the photo is a beautiful blue car, which is worth a lot of money at first glance. This is the most high-end car we can introduce from the Fiat Group. The Maserati Quattroporte is on the same level as the Mercedes-Benz S-Class, and it costs more than one million to import. ?Feng Bin, who saw this scene, quickly introduced it from the side. From the eyes of his general manager, he seemed to see a trace of desire. Mr. Li, if you have an idea, we can import a few cars to test the water first. Even if we cant sell them, we can digest them internally... Internal digestion, naturally it is self-produced and sold, and used as an official car for the group''s senior executives. Forget about internal digestion. Unexpectedly, Li Liangyi waved his hand, lowered his head and thought for a while, then slowly said: "I do have the idea to import a few cars, but I plan to give them out as gifts in the name of Jinling Fiat Group, as an... advertisement." The secretary next to him immediately understood the implication. ?As a true confidant of Li Liangyi, the secretary knew very well why Fiat Group suddenly came to him to ask for deeper cooperation. Not to mention all of them, at least 80% of them belong to the Torch Group in the capital. The former has always wanted to establish a relationship with the other party''s general manager Chang Haonan. ??Last time I used an advertising space to test it out, and the other party showed a very business-like attitude. ?This time, Li Liangyi, who was a little unwilling, was obviously ready to increase the stakes and try again. (End of this chapter) Chapter 459 We have a traitor in our midst! Chapter 459 We have a traitor among us! ?Compared to Li Liangyi who was in a good mood, Qing Jingbin, who had just arrived in Jinling, was not so relaxed. As the sales director of NSK Group''s China office, 1997 was a very critical year for him. ??Although Japanese bearings entered the Chinese market very early, to some extent, they were still held back by Japanese car companies that were a step slower than the Germans. From the late 1980s to the early 1990s, Volkswagen produced several classic models in China for local production. However, almost ten years later, in 1997, Toyota and Honda were still hesitating about what form and attitude they would take to conduct a joint venture. . This resulted in the entire Chinese automobile market in the 1990s, which could be said to revolve around two models. Santana and Jetta. They all use SKF bearings. Although bearings are known as the joints of industry, and any equipment with rotating parts will inevitably use this seemingly inconspicuous component, there is no doubt that automotive bearings occupy an absolute share in terms of sales and profits. Advantages. The success of German cars in China has directly allowed SKF to account for 60% of China''s imported bearing sales. However, although Japanese companies such as NSK and NTN account for a higher proportion in the industrial field, they still cannot reverse their overall dominance. Unfavorable situation. ?Under this situation, NSK has begun to consider officially upgrading the Huaxia office to the Huaxia region and building a bearing factory in Luzhou and Suzhou respectively. ??And if Qing Jingbin can produce strong enough performance in the past two years, then there is a high probability that he can go one step further and sit in the highest position left to the Chinese people at NSK, that is, the deputy minister of the Huaxia Region. So this matter cannot be ignored by him. Investigating the situation of Jinling Iveco is not difficult for Qing Jingbin. It is true that bearing manufacturers are suppliers to Party B compared to OEMs, but in daily contact and communication, they are often much stronger than Party A as they hold key technologies. What''s more, NSK is still a foreign company, and people are absolutely superior to others. It is normal to develop some eye-liner relationships within the OEM or dealer network. ?So Qing Jingbin didnt spend much effort and got some information from a Jinling Iveco worker over a McDonalds meal. You said that starting from November this year, the newly produced Iveco will be replaced with a batch of domestic parts? When he first heard the news, the formers first reaction was ridiculous. Before he came to Jinling, he had thought that some of his peers might have deliberately lowered prices to compete and steal business. However, he considered the suspects from NTN to FAG to SKF, but he never thought that Jinling Iveco would be so bold. Use domestic bearings. "Yes, I heard it from my second uncle two days ago. He works as an inspector in the technical research and development department of our factory. He said that each car can make several thousand more dollars in profit." The young man who was found lowered his head and took a bite of the burger. ??The treatment given by Jinling Iveco is good, but for him, there are still few opportunities to eat this kind of foreign fast food. You dont want word of mouth? If you use fake and shoddy parts to replace imported goods, or key parts like wheel bearings, customers will find problems after driving hundreds of kilometers, and then even my reputation will be ruined! Of course, Qing Jingbin could not be stupid enough to reveal his identity publicly when he was developing an informant. Therefore, he had always used "a car dealer who wanted to get some inside information" as a cover for his activities. It is reasonable to show such anxiety at this moment. "I don''t know the specifics, but I haven''t heard that the marketing department is going to change the after-sales standards. I think there won''t be any big problems. Most customers don''t care which supplier the parts come from. " The young man opposite shrugged: "Actually, I know that many drivers will directly replace auxiliary parts when repairing their cars. So why are the Japanese bearings from Enesk so expensive? Replacing four bearings at a time can save dozens of dollars. It doesn''t matter. I heard the quality is different from the original one. Nonsense, the kind of auxiliary parts you are talking about are... Qing Jingbin swallowed his words halfway. Of course he knew that what the other party said was completely true, because the so-called "sub-factory parts" that are only twenty or thirty yuan cheaper than the official ones sold by NSK, but have exactly the same quality, were obtained privately by Shunsuke Haneda from Japan through special channels. For sale. Including Qing Jingbin himself also participated in it. It is naturally impossible to say such a thing. But they also have a sense of proportion in such actions. The quantity of goods they put on the market each time is not large. Jinling Motors cannot rely on these three melons to build cars. So there must be another supplier. Thinking of this, Qing Jingbin leaned his head slightly and asked in a low voice: That new bearing you mentioned, can you make a sample for me to see? You asked me to steal something? One sentence scared the burgers out of the hands of the young man opposite: Thats illegal, I wont do it Although theft of trade secrets is actually a crime, in this day and age, it is obviously unlikely that an ordinary worker would understand the concept of the crime of infringement of trade secrets, and this crime is rarely enforced in practice. ?However, stealing and committing a crime is the simplest cognition. "Okay, indeed, I was the one who was abrupt..." After weighing it, Qing Jingbin decided to adopt a gentle approach rather than a coercive approach: You dont need to actually take out the sample, as long as you can find out where your factory procures the new bearings from, I can give you 100 yuan as a reward. "this" Obviously, 100 yuan is definitely attractive in this era. ?However, the young man opposite was obviously not completely brainless. After hesitating for a moment, he asked doubtfully: What do you do that interests you? "I" Qing Jingbin was asked for a moment. Fortunately, his mind moved quickly and he came up with a reasonable explanation in an instant: I sell cars. If your factory needs to replace parts, then the so-called original parts when I repair peoples cars must also be replaced. I have to be prepared in advance... ??There is a big difference in the price between getting the same parts directly from the supplier or going through the car manufacturer. Theoretically, the OEM will sign a contract with its supplier, requiring the latter not to go beyond its own supply to dealers or repair shops. However, this kind of contract has almost no actual restrictions, as long as the parts supplier does not play too hard. If you go too far, no one will usually pursue it. Okay, Ill check with you in the next two days, and you wait for my call. ?The young man finished the last bite of the burger, wiped his hands and left McDonald''s. It should be said that the efficiency of this informant is very impressive. Just the next day, Qing Jingbin received the message from the other party. Bearing parts come from Northeast Special Steel Group. In fact, Qing Jingbin was able to learn all this so easily, mainly because this matter was not considered a highly confidential matter within Jinling Iveco No matter how tight it is now, when the new car comes out in November, if someone is willing to check the supplier changes, or simply dismantle a car, everything will be known. The next day, NSK Bearing China Office in Shanghai. Northeast Special Steel ?Heda Shunsuke muttered this name. He had no impression of this name at all. NSKs main competitors in the past were several big brands from Europe. In Hanedas perception, Chinas local brand bearings could not pose any threat to itself. Qing Jingbin took this opportunity and quickly introduced: Northeast Special Steel is a new company formed by the merger of three special steel companies at the end of last year. I think it is impossible for them to produce products comparable to our NSK in just over half a year on their own. You are right, Mr. Qing If this is the case, there is only one possibility... Haneda, who was behind the desk, touched his chin lightly as he spoke: We have a traitor among us! "ah?" Qing Jingbin was about to get up and deny it, but then realized that the "we" Shunsuke Haneda said was not him and himself, but other Japanese companies in China. As Japanese companies go overseas, although there are constant overt and covert conflicts on the surface, there is actually an industrial alliance. ?For example, in the field of machine tools, the bearings exported by NSK to Chinese companies cannot threaten the models sold in China by brands such as Okuma, Makino, and Mitsubishi. Correspondingly, in the field of bearings, the raw materials exported by Datong Steel cannot threaten the models sold by brands such as NSK and NTN in China. In Haneda Shunsuke''s view, the only way a Chinese company can produce products with similar performance to Japanese bearings is if someone breaks this rule and sells parts that exceed the limit to Tohoku Special Steel. ? Considering that NSK itself has used a large number of Chunzhongdao products, and the latter has recently actively invested and built factories in China... ?The answer seems to be self-evident. Qingjun, thank you for the information you obtained from Jinling. I will inform the country and let the superiors negotiate with Chunzhong Island. ?Heda Shunsuke raised his head and showed a satisfied smile: In addition, if this matter can be properly resolved, I will also recommend you to the headquarters for the position of deputy minister of the Huaxia Region..." When Qing Jingbin heard this, he half-bent down excitedly and bowed: Thank you, Minister Haneda! (End of this chapter) Chapter 460 J-11 final assembly rolls off the assembly line, multi-arc ion plating technology! Chapter 460 J-11 final assembly rolls off the assembly line, multi-arc ion plating technology! Chang Haonan certainly didnt know yet. His subsequent phone call, which was intended only to solve the problem of the localization rate of helicopters, would bring a major earthquake to the entire Chinese automobile industry. At this time, he came to Shengjing on another business trip. Because the first two J-11s that were assembled by Factory 112 have rolled off the assembly line. Of course, after all, it is just final assembly, and the difficulty itself is not that great. The main focus of Factory 112 and Institute 601 in the past six months has actually been on sorting and translating technical data related to the Su-27 aircraft, as well as contacting Sukhoi experts. Discuss the next steps for improvement. ?Originally, this was not a big event, and the factory did not plan to hold any large-scale celebrations. However, Chang Haonan had never seen the domestically produced J-11 series fighter jets in his previous life, so he took this opportunity to quench his thirst. ??It was still United Airlines'' Tu 154M, and it was still Taoxian Airport, but the person traveling with him became Zhu Yadan, who was protecting Chang Haonan''s safety. As a Ph.D. majoring in aircraft design, Yao Mengna is a genius in the normal sense after all. It is difficult for her to seamlessly switch between the two thinking modes of inflow design (aviation engine) and outflow design (aerodynamics) like Chang Haonan. Therefore, she After assisting in the development of the first version of TORCH Multiphysics, he did not choose to participate in the research and development of the Taihang project with Chang Haonan. Instead, he chose to join Project 11, responsible for the digitization of J-11 technical data and the improvement of production processes. So actually, Yao Mengna has been staying in Shengjing during this period of time. ?As for Xu Yang, she is actually not very interested in airplanes. She is currently still working on an algorithm that can directionally modify GPS positioning data. The process of getting off the plane from Taoxian Airport has become as instinctive to Chang Haonan as eating and drinking. ?As usual, a car was parked at the door waiting for him. He Ming, deputy chief engineer of the 112 Factory, came to pick him up in person. He and Chang Haonan were old acquaintances. After meeting, they just shook hands and got into the back seats of the car. Mr. He, the conditions in your factory seem to have improved a lot during this period. ?The morning of early autumn in Northeast China was already a bit cold. Chang Haonan tightened his tight coat and looked around at the new decorations in the car and said. The last few times he went to Factory 112, he had taken a 212 Jeep, but this time he had changed into a brand-new Jetta King. ?Although it is not a good car, and it is most likely a business version (extreme simplified version) supported by FAW''s sister units, it is still a serious passenger car, much more comfortable than the 212 in the past. On the other hand, when Yao Mengna was talking to him on the phone, besides discussing technical issues, she would also talk about some miscellaneous things in life. According to the former''s description, the food in Factory 112 was much better than a year ago, at least except for breakfast. You can see the fishy smell everywhere... "That''s for sure. In the past six months, there have been a lot of domestic orders, plus the F4 upgrade order from Persia. Although the money does not fall directly into our factory, it is still much more abundant than before, at least the wages of employees and welfare can be guaranteed, and the food expenses have also increased from 6.3 yuan to 7.9 yuan..." ?As the deputy chief engineer of the entire factory, He Ming is responsible for a lot of management and organizational work in addition to technical aspects. He is very familiar with these things. ?Only by solving employees worries can we keep them working in a down-to-earth manner. As the two of them chatted, the car quickly drove to Beiling Airport, near the final assembly workshop of Factory 112. Come back again ?Chang Haonan opened the car door, got out of the back seat, and then took a deep breath of fresh air in the suburbs of Shengjing. ? It was here that he witnessed the first flight of a new model for the first time after his rebirth. It was the J-8C03 prototype after extensive modifications in design. Nearly a year has passed, and both Chang Haonan himself, Factory 112, and even the entire Chinese aviation industry are no longer what they used to be... Long time no see, junior brother. Yao Mengna has obviously been waiting here for a while. When she saw Chang Haonan getting off the car, she came up to her and took the initiative to say hello. Long time no see. Is the project here going well? ?Although we have communicated on the phone before, the project issues are not as direct as face-to-face communication after all. "Okay, it''s all the parts I''m good at, digital design and production, and structural analysis." Yao Mengna lightly shrugged and replied: "We have begun to change the production process of the domestically produced J-11 body frame from welding to integral forging, and have also increased the amount of composite materials. However, these will have to wait until at least the third batch of aircraft to be used. The first two batches The technical conditions are basically the same as the original products produced in Gongqingcheng. ?While the two were chatting, an aircraft with a yellow fuselage and gray radome had been pulled out of the assembly shop. As usual, there is a big red flower tied on the nose of the aircraft. ?Chang Haonan has even begun to adapt to this earthy aesthetic now, and at first glance it looks pretty good. He had seen the Su-30MK at the Xiangzhou Air Show before, but because he was very busy at the time, he had no chance to take a closer look. Now that he was getting closer, he could intuitively feel the exaggerated size of this aircraft. ?However, the sharp-eyed Chang Haonan soon discovered that this aircraft was actually a little different from the previously imported Su-27SK. Have you replaced the wingtip pylons? ?This first mass-produced aircraft with production batch number 110101 has been replaced with a trapezoidal double-layer pylon similar to the previous J-11B, instead of the original Su-27''s straight pylon. Of course, this change itself does not have any technical difficulty. It is just to make this pylon compatible with the Pili 8 air-to-air missiles whose wingspan is too exaggerated. In practical applications, in most cases, the pylon will be directly removed at this position. It can be said that choosing an electronic warfare pod is not a very important change. But the symbolic meaning is completely different. On the first aircraft that rolled off the assembly line at Factory 112, Sukhoi made special modifications based on the actual needs of the Chinese Air Force, which was obviously a good start. Yes, this was proposed by Yao Gong before. ?He Ming walked over from behind and stood side by side with Chang Haonan: After all, although R73 has been purchased in large quantities, if one round is lost, our main force must be domestically produced ammunition. Yao Mengna glanced at He Ming who suddenly interrupted, but the latter had no idea and had to return to the topic: Selling your soul is something that happens again and again. When we first started to modify the J-11 with us, Sukhoi was a little bit hesitant, but later he got used to it and it was nothing. Although the J-11 cannot be called a new model in any way, the first two aircraft still have to undergo some ground tests first and cannot be tested immediately after leaving the factory. So the celebration lasted very short, and it ended with everyone gathering around the plane and taking photos. After the conversation came to an end, He Ming pulled Chang Haonan to a slightly remote corner: Comrade Haonan, there is something we want to contact you about. You are coming over today, so we can discuss it in person. ??The latter nodded slightly, indicating to the other party to continue speaking. "When we tried to install the electronic warfare pod you developed on the J-8C, the engineers at Sukhoi hoped to obtain complete related technologies through peer-to-peer exchange. We asked the 14th Institute of Electronics, and they said You agree to let us handle it, but we ask for your opinion first. Chang Haonan was stunned by one sentence. ??He never expected that the day of reverse export of weapons and equipment to Russia would come so soon. Although the transaction method is quite special. Of course you can exchange technology for technology, but it depends on what the other side comes up with. After thinking for a moment, Chang Haonan replied: We dont expect to take advantage of the other side, but we certainly cant suffer a loss. "Now Lao Maozi has established a unified unit responsible for the import and export of weapons and equipment, so the things that can be taken out are quite complicated. The conditions they offered this time are that they can transfer a complete set of multi-arc ion plating equipment, as well as related technology!" (End of this chapter) Chapter 461 The technical puzzle of high-performance aviation engines Chapter 461: Technical Puzzle of High-Performance Aviation Engine Are they so open-minded? ?The attitude of the Russians is indeed unexpected. After all, the change in thinking from selling technology to exchanging technology for technology is not that easy to complete. Hey... Yao Gong just said it right. Once it is familiar, it will be familiar again. They are all willing to work with us to modify the Su-27, so naturally they will not care about these small things..." He Ming shrugged as he said: "Furthermore, although neither side of us has publicized the Royal Navy''s failure in the South China Sea, the British themselves know it. The Russians must have received the news earlier and will check with us about the situation. , it is not difficult to guess the origin of the story..." "At the beginning, Lao Maozi came up with the article that both sides have equal rights to the technology within the framework of Project 11 and asked for sharing, but I told them that this was developed independently by the Ministry of Electronics Industry and was not related to Project 11. It doesnt matter, only later He then briefly introduced the ins and outs of the whole matter. If thats the case...its really worth trading... ?Chang Haonan nodded in agreement without too long of hesitation. ?Multi-arc ion plating, a vapor deposition coating technology developed on the basis of vacuum evaporation technology and vacuum sputtering technology. Due to its advantages of safety, high deposition rate, and good film adhesion, it is one of the most important process methods in the field of coating manufacturing in the past and next twenty years. Almost all high-end machining fields are inseparable from coating manufacturing. From the hard wear-resistant coating on the surface of machine tool tools to extend the service life, to the thickening treatment on the outer surface of bearings to enhance endurance, to the thermal barrier coating on the surface of spacecraft components to mitigate the huge temperature difference in space layer, as well as what Chang Haonan urgently needs right now, the high-temperature corrosion-resistant coating on the surface of the aircraft engine turbine blades, all require the same type of technology for production and manufacturing. In the past, the multi-arc ion plating equipment available in China were all very low-grade and backward models. Not only were the coatings of poor quality, they also had various restrictions on coating materials. Therefore, most of these components could only be directly imported. Of course, You can''t buy anything with particularly high specifications. Obviously, Lao Maozi has done his homework. Exchanging key electrochemical processes for electronic warfare technology, this wave is basically equivalent to learning from each other''s strengths and weaknesses. In fact, unlike many stereotypes, the electronics industry during the Soviet period, especially after the 1980s, developed quite rapidly, and even the gap with the United States was basically only a few years. ??However, the problem is that these industries are concentrated within Belarus and the three Baltic countries. After the disintegration of the alliance, almost no legacy was left to the current Russian Federation. At the end of the 1980s, there was a difference of a few years. After nearly a decade of complete stagnation, by the end of the 1990s, the difference is more than twenty years. After all, the entire 1990s was an era of explosive growth in the electronics industry. If you miss this dividend period, the loss will be far more than just 10 years on paper. The situation in electrochemistry is exactly the opposite. ??Although multi-arc ion plating technology was first put into commercial use by Multi-Arc and Vac-Tec, few people know that a considerable part of their key technologies were actually purchased from the Soviet Union in the late 1970s... Thats right, even at the height of the Cold War, the two sides of the Iron Curtain did not completely cut off technological exchanges and exchanges. ?The reason Chang Haonan knows this is because there was a Russian-made STANKIN-NBC-1 multifunctional coating system in his laboratory in his previous life. Although it is not his own project direction, among the devices with Chinese and English operating interfaces, the unique Russian interface of this device really gave the entire research team a headache for a long time. In the end, a dozen or so people compared the Russian dictionary word by word before they could barely figure out how to operate it. Not to mention, it is really easy to use. The bonding strength of the film layer of the sample produced exceeds 100N, which is almost three times the bonding strength of the sample purchased from a third country... In short, if this deal can be done, it will definitely be a good thing for both parties. ?However, Chang Haonan quickly gave another instruction: "If you want to exchange, you must remember to bring a controlled planar arc evaporator and a fast neutral molecular beam source during the negotiation. At least the equipment must be obtained. These two things are independent components outside the coating equipment, but they play a role "In addition, there are electronic heating and gas ion sputtering cleaning, which can allow metal particles to pass through the isolation screen and enter the interior of the cavity. Coating the workpieces cleaned by sputtering in the cavity is very important for our turbine blades and future machine tool production, so not only the equipment, but also the technology must be obtained, even if it costs a little more..." At this point, he suddenly stopped, glanced at He Ming next to him, and shook his head helplessly: Oh, forget it, Ill write you a memo when I get back. You probably wont be able to remember it now... "I" ?He Ming felt as if he had been slighted. ?He wanted to refute, but he couldn''t. Because he really didn''t remember... ?Lies will never hurt, the truth is the sharpest knife. Chang Haonan''s speech speed was already relatively fast, and He Ming himself was not an expert in the relevant field. Four consecutive proper nouns that were slightly awkward to pronounce immediately shut him down. Then Ill trouble Comrade Haonan... Fortunately, He Ming''s mentality was good and he quickly adjusted back: But speaking of which, you actually do research on electrochemistry? ?Although he had a lot of contact with Chang Haonan, it was basically limited to the period of the August 3rd Project, and his understanding of the latter was obviously not comprehensive enough. Thats not true. I havent learned much about chemistry other than physical chemistry since I went to college. I may get involved in it in the future, but definitely not now. Chang Haonan waved his hands and denied: Its just that Im leading a team to work on the turbofan 10 recently. Many parts are inseparable from high-performance coatings. I just read some information and I understand it, but I cant talk about research. ??He is indeed not modest. If he really understands electrochemistry, why would he need to exchange technology for technology? He can just develop his own set and be done with it. In fact, he has never had serious contact with chemistry in his whole life, and the current situation does not allow him to learn it slowly from scratch. Even if there was no such thing, Chang Haonan would still like to buy a few of the same model that he used in his previous life. The third-generation turbofan engine is an extremely difficult peak for China''s current industrial foundation. In this process, every possible method must be used. Turbofan 10 Speaking of this matter, He Ming immediately became energetic: Comrade Haonan, do you have a rough plan? When can our J-11 use domestic aviation engines? As the deputy chief engineer of an aircraft manufacturer, he only has a general understanding of aerospace engineering projects. "This...of course it is possible. Within five years, we will completely get rid of our third-generation aircraft''s dependence on imports within five years." Chang Haonan''s plan is to at least let the J-11 equipped with a full-state prototype equipped with a domestic engine appear in the 1999 military parade, but his habit has always been to keep his words to himself. ?Of course, even the unspecified plan was enough to surprise He Ming: Look at it this way, before I retire, is there still a chance to build a 100% domestically produced third-generation fighter jet? "certainly" (End of this chapter) Chapter 462 High-performance film cooling, breaking through the temperature in front of the turbine Chapter 462 High-performance film cooling, breaking through the temperature in front of the turbine ?After attending the first aircraft roll-off ceremony of the domestically produced J-11, as the chief designer of the turbofan 10 project, Chang Haonan has arrived in Shengjing, and he must visit the 606 Institute and the 410 Factory. After all, its all coming. For China''s aviation industry, the turbofan 10 is almost a "zero-based" engine. Although some of the technologies previously developed during the development of the turbojet 14 can be used, not many of them can be used. As for the older models, they have no reference value at all. Before the Turbojet 14, China did not even have an aerospace engine research and development system in the strict sense. Therefore, in order to improve efficiency, Chang Haonan adopted an unprecedented parallel operation of the design and production lines on this project, at the cost of increased risks and workload. Mr. Chang. Chang Haonan came to Shengjing on a temporary basis, and he only showed up at Factory 112 after getting off the plane. Therefore, after he arrived at Factory 606, except for Hai Yide, the chief engineer who had been leading the organizational work in Shengjing, other people Not even prepared. Why didnt Mr. Chang tell us before he came? Lets clean it up... An engineer following Haiyide touched his unshaven temples, which had obviously not been taken care of for many days, and then glanced at the design research room, which was almost covered with all kinds of information and diagrams, with a look of embarrassment on his face. expression. Although engine design work has now been digitized to a considerable extent, this room is actually a place for communication and discussion among several of their R&D groups. After all, aviation development is a complex system engineering. It is impossible to just knead several parts together like kneading clay and then be done. The failed compressor design at the beginning of the Turbojet 14 has proved that this approach will never work. Therefore, even if it is still in the early stages of the project, everyone still needs to frequently communicate with each other under the leadership of the overall design team to prevent the development direction of a certain subsystem from going too far. In this process, paper materials are often more convenient. After all, there are no online working software these days. This is out of the ordinary, isnt it? Chang Haonan casually put aside a huge drawing that covered two chairs, and then sat on one of them: Although I am not always in Shengjing, since we are the same R&D team, we are a family. Dont act like you are welcoming the leader. Since the design of aeroengines involves a large number of complex numerical calculations, and currently the city with the richest supercomputing resources in the country is Beijing, and the compressor research center planned for the future is also located at Beijing Hang University, there are actually quite a few The R&D personnel are stationed in the capital with Chang Haonan. ??Furthermore, he is also a front-line designer and has a deep understanding of the mental state of everyone during the project process, especially the critical stages of starting and tackling key problems. ?If the office is messy, let it stay messy. Once it is sorted, there will always be something you can''t find. ?As the chief designer, he is almost everywhere in the entire project. There is no need for him to show his presence by messing around like some leaders. After everyone took their seats, Haiyide quickly brought the topic back on track: Okay, we are almost here now. If you have anything you need to report or ask to Mr. Chang in person, it can save you the trouble of a business trip to the capital. Please hurry up and say what you need to say and ask what you need to ask. Although Chang Haonan is usually in BJ, he does not just abandon Shengjing. Each research and development direction must submit project progress reports every week, and he will also give feedback as soon as possible, so although Its been two months since Ive been to School 606, but theres no grand occasion where everyone has accumulated a bunch of questions and is actively asking them. Mr. Chang, lets report the situation in the combustion chamber first. After a brief silence, an engineer who looked about fifty years old spoke first. Yin Yongze, one of the deputy chief designers of Turbofan 10, is also the person in charge of combustion chamber technology R&D and design. He participated in the design of my country''s first annular combustor in the Turbojet 14 project. Although in terms of paper performance alone, the immature design is not much better than the previous annular combustor, but due to the flame The barrel is an integral annular cavity, so the space utilization rate is higher, the outlet flow field is evenly distributed and the cooling pressure required is relatively small. Simply put, the potential is greater. It was precisely because of Yin Yongzes experience that Chang Haonan dared to hand over the combustion chamber, one of the three core components of the machine, to him. "When I reported to you last time, we had already set up the high-pressure test platform for the combustion chamber. During this period, we also carried out some preparation work for parametric design. It is expected that the number of high-pressure tests can be reduced to about half of the previous level. The next step is to start developing calculation models and parameterizing the system. However, the combustion power we have determined now is a bit large, and the requirements for cooling intensity are very high. I wonder if the compressor can provide 6%-8% more Intake air flow? Yin Yongze said as he slid a piece of information in his hand along the table in front of Chang Haonan. The latter looked through it carefully and found that it was related information on parametric geometric modeling of an annular combustion chamber. "The pre-processing work has been done well. In addition, when developing the calculation model later, remember that in addition to the standard centrifugal nozzle, the atomization model can also be used to construct the structure of the centrifugal oil slinger." ??????Since human beings'' understanding of the combustion process is still unclear It is relatively unclear, so in terms of combustion aerodynamics and structure, numerical calculations play a relatively small role, and the research foundation for combustion chamber structures is not as good as that of compressors and turbines. Yin Yongze can achieve this level of parameterization, and he has indeed Pretty good. Oil dumper? ?Chang Haonans request stunned Yin Yongze: Our design ?However, he was interrupted by Chang Haonan mid-sentence: "Of course the big push like the Turbofan 10 requires the use of centrifugal nozzles, but jet power will definitely become more popular in the future. Small aeroengines are needed for places like cruise missiles and drones, and the oil supply pressure of the oil pan is low and unstable. Its easy to block, and the most important thing is that its cheap. We just take advantage of the current opportunity to lay a foundation. Compared with other aviation development researchers in China in this era, Chang Haonan''s greatest advantage, apart from cheating, is his longer-term planning ability. Okay, well pay attention when the time comes. Yin Yongze opened the notebook in front of him and wrote down this request: Mr. Chang, the matter of intake air flow... 6%-8% is too much. Chang Haonan immediately shook his head: "Now the overall design level has basically determined the structure as 2-8-1-1 structure or 3-7-1-1 structure, so the margin left at each level is very small, 6% to 8% is almost Adding another level of high pressure will definitely not work. But our demand for cooling air flow is indeed much greater. If it doesnt increase..." Film cooling can be said to be a landmark technology in the history of aero-engine development, but the use of gas for active cooling is not without cost. The gas used for cooling cannot be used for propulsion, which is equivalent to losing a considerable part of the compressor power. . Hence, although theoretically better results can be achieved by simply increasing the amount of cooling gas, in actual aircraft engine design, the gas loss rate must still be taken into consideration. ??If the inner wall of a combustion chamber consumes at least 6%, then counting the turbine with greater cooling pressure... Also plays with a hammer. If you let out nearly one-fifth of the air that the compressor is working so hard to bring in, it may be acceptable for engines with output shaft power such as turboprops and turboshafts, but for turbofan engines, it is basically It''s just useless. ??And if another level of high pressure is added, it will become 3-8-1-1, which is not even close to the current AL31F. The performance of AL31F is certainly adequate, but its potential is not. It is a design from the late 1970s after all. What is the upper limit of your combustion chamber outlet temperature setting? The temperature in front of the turbine of turbofan 10 (that is, the combustion chamber outlet temperature) is set at 1200-1250C. This is a decision made by Chang Haonan himself, but the cooling system must leave a certain margin. How much margin is left is Yin Yongze''s job. . Leave 5% margin, 1325. This margin is of course calculated in Kelvin. Yin Yongze then added: This cooling requirement is too high. We can only use slot cooling to replace the round hole cooling on the turbojet 14, and the demand for air flow increases. ?Now Chang Haonan finally knew what the problem was; "Don''t use slot cooling. My next plan is to study a high-efficiency formed hole cooling solution for the turbine part. Using special-shaped holes instead of round holes can theoretically achieve an effect close to slot cooling without increasing the air consumption. You guys Lets continue to calculate other structures based on 1325C. The specific cooling plan will be determined after I develop the porous media model with special-shaped holes. Although the temperature at the combustion chamber outlet is undoubtedly the highest part of the entire engine, ultimately converting the energy of the high-energy gas into mechanical work still requires the turbine. The latter not only works in a high-temperature and high-pressure environment, but also needs to rotate at high speed and withstand external overloads. Therefore, the requirements for materials and cooling technology are higher. If a cooling technology can be used on the turbine, then moving it to the sidewall of the combustion chamber is generally not a big problem. (End of this chapter) Chapter 463 Do you want to install 70? Chapter 463 Do you want to settle 70? After all, Chang Haonan himself has already taken charge of two of the three most critical components. Therefore, except for the combustion chamber, the remaining problems encountered in the remaining directions are all minor problems. Even if he doesn''t come this time, we can wait until the next report to solve the problem together. ?Of course, having said that, the improvised Taihang Engine Project Progress Meeting still lasted for a full afternoon. Supper will naturally be taken care of at 606. As for the 410 factory, we can only talk about it tomorrow. In fact, in the field of aviation engine manufacturing, there is nothing that needs to be handled by Chang Haonan recently. Several bearings required for the new generation of engines are still in the sample testing stage. Even if they are installed, they will be tested on the turbofan 9. What really attracted him was a TF30 engine that the 410 Factory had just shipped back from Persia some time ago. ?At first, we were planning to see if we could do a life extension upgrade, but later, after inspecting the 410 factory, the Persians decided to give up and wait for the turbofan 9 to be directly replaced after all localization work was completed. ?Although this model is notorious for its performance on the F14A, this is largely a problem with the F14. At least the same or similar models perform well on the F111 fighter-bomber and A7 attack aircraft. ?Hence Chang Haonan is quite interested and has always wanted to have a chance to go and have a look. However, plans cannot keep up with changes. ?Just that night, Chang Haonan, who was staying at the Aviation City Guest House, received an urgent call from the Commission of Science, Technology and Industry for National Defense, asking him to go back for a meeting the next day. ?Then there is no other way but to do it next time. Fortunately, the Persians were not prepared to take the trouble to take back the TF30, which had actually exhausted most of its life, saying that it should be kept as a commemoration of the cooperation between the two parties, so they were not in a hurry. The next day, Chang Haonan took the earliest flight back to the capital. He is already familiar with holding emergency meetings of the Science and Technology Committee. Generally speaking, if it is a meeting related to technology or industrial issues, unless you have to use an outside phone or even a mobile phone to contact the meeting, the specific content will definitely be explained directly. After all, if you want to discuss these, you must prepare some information in advance. ?Situations like this that only notify a time and place basically indicate that there is an emergency, and it is most likely to be policy-related. So after getting off the plane, Chang Haonan didn''t even return home, so he took a car and ran directly to the Science and Technology Commission. Compared to the last meeting where there were only members of the leadership team (and Chang Haonan), this meeting was obviously much more open. Because there were many new faces that Chang Haonan had never seen sitting on both sides of the conference table. ??This is not Chang Haonan''s nagging. After more than a year of hard work, he has at least met all the leaders at the department and bureau level of the Science and Technology Commission and above, if not he knows them all. As usual, Chang Haonan found a seat on the left side of Ding Gaoheng and sat down, opened the notebook he brought with him and prepared to wait for the meeting to start. Comrade ChangerHaonan? A voice that sounded familiar to the former came from the side. ?Chang Haonan turned his head and thought for a while before remembering the identity of the other party. Director Zhou. ??The director of the System Engineering Department III whom I had met before. Speaking of which, the other party was actually the first mid-level and senior leader of the Science and Technology Commission system that Chang Haonan came into contact with after his rebirth. ? And from the perspective of business division, he who is mainly responsible for projects in the aviation field should mainly interface with the System Engineering Division Three. ? It was just that due to a series of accidents that happened later, Chang Haonan was promoted from being oriented to the research institute to directly connecting with Ding Gaoheng himself, surpassing the stage of being responsible for the department-level units and the Aviation Industry Corporation. So much so that he didn''t even notice the other person''s identity when he sat down just now. After all, you cant remember the faces of people youve only met once. Originally I couldn''t remember what it was called, but the cover of the book in front of the other party happened to be opened, and the word "Zhou Rong" was written on the first page, so I guess it was her name. Zhou Rong obviously wanted to say something more, but at this time, Ding Gaoheng and Huai Guomo happened to walk in from the outside, so she had to swallow her words. In fact, in such a large organization, the department leaders responsible for specific operations may not be very well-informed. ?System Engineering Department No. 3 is only responsible for aviation and shipbuilding, but Chang Haonans influence today has long been not limited to these two fields, or even limited to the Science and Technology Commission system. ?Especially the hard identities with official seals, such as the general manager of Torch Company and the members of the 973 Project Expert Advisory Group, are actually concentrated on the Science and Technology Committee. So it wasnt until the last time I saw Chang Haonan and Ding Gaoheng walking side by side and talking and laughing, that Zhou Rong made some special inquiries and found out how far Chang Haonan had reached. You should know that she was one of the people who interviewed Chang Haonan. If you really want to talk about it, this status is a little bit "Bo Le". Although it is definitely not as orthodox as Du Yishan, if Zhou Rong had done more contact and management in the past year, it would not be difficult for Zhou Rong to close the relationship between the two. However, after she threw Chang Haonan into the August 3rd Project, she never paid much attention to him. After all, no normal person could imagine such a development. Now that people are already in front of me in meetings, there is no point in emphasizing what happened back then... In short, I feel regretful, very regretful. There was once an opportunity to reach the sky in one step, but I didnt cherish it... ?Just when Zhou Rong was upset about her past choices, Ding Gaoheng coughed twice and officially announced the reason for convening everyone for this meeting. In July this year, a boss of ours who was doing business within the CIS contacted us and said that he had some connections in Kyiv and asked us if we were interested in some of the legacies left after the disintegration of the alliance. "At first we didn''t take it too seriously and just asked comrades from relevant units to maintain routine contact. But some time ago, the other party really provided us with a batch of technical information and samples of special steel for ship use. Although we needed The price is not low, but after appraisal by domestic experts in the field of shipbuilding, the quality is quite high and can even be used to build heavy ships such as aircraft carriers or large supply ships. It is definitely worth the money. Now the boss has contacted us again and said that he has channels to directly cooperate with Motor Sic Group and Antonov Group to inquire about domestic wishes. After Ding Gaoheng introduced the situation, Huai Guomo also added next to him: "When we were negotiating with Ilyushin before, we pretended to have contact with Antonov, but we did not discuss the conditions for cooperation in depth at that time. We were just using it as a bargaining chip to lower the price of Ilyushin 76MF. This time if they really seek For direct cooperation, I think it is most likely to be the An-70 transport aircraft project. Now we will soon receive a large number of IL-76MFs. If we continue to develop An-70s, will there be overlap in positioning? Some people soon raised doubts. That wont happen. Zhou Rong, who was sitting next to Chang Haonan, continued: "Although the maximum payloads of the two aircraft are close on paper, the An-70 is essentially an enlarged tactical transport aircraft and can be regarded as a superior replacement for our Y-8. The maximum take-off weight of the IL-76MF after improvement is nearly 200 tons. Still not on the same level. For her, it would undoubtedly be great news if she could hold such a new model in her hands. So after finishing speaking, he gave Chang Haonan a look next to him, trying to signal the latter to express his stance. ?However, Chang Haonan kept his head down and didn''t seem to notice Zhou Rong''s little movements. "I think it still depends on how much the other party wants. We have launched a lot of projects in the aviation field in the past two years, including Project 10, Project 11, third-generation engines, and new medium-sized early warning aircraft... Although the current funding is lower than In the past, we had much more money, but we couldnt afford to spend so much money ??The director of the Finance Department is almost turning green. Recently, he just feels that people all over the world are asking him for funds, but the Finance Department is not a banknote printing factory, so it really can''t come up with that much money. What he was talking about just now was only about aviation. As October 1999 approaches, the Army project, which has never had a say in funding in the past, has become much tougher than before. Not to mention that there is a big money-burning Navy, which is just building The new generation of frigates selected after Operation Embankment was a huge sum of money that was unimaginable in the past. So, although it is said euphemistically, in reality it still means mostly opposition. After all, everyone knows the situation of Ermao. When looking for a partner, you must be extremely short of money, and the asking price obviously cannot be too low. Soon, the conference room was divided into two distinct groups. Although they did not quarrel, they were at war with each other. (End of this chapter) Chapter 464 Lets poach people from Ermao. Chapter 464 Lets poach people from Ermao ?Chang Haonans feelings about the model An70 are generally quite complicated. ?There is no doubt that the Yun 8 platform, even after he and Liang Shaoxiu''s magic modifications, is still too weak to make any improvements. As long as the issue of flight safety is solved, it will basically be over. The voyage, especially the voyage under heavy load, cannot be saved. Not to mention the Y-8, which is developed based on a passenger and cargo aircraft like the An-10, even the C130, which has been the benchmark for tactical transport aircraft for nearly half a century, will quickly fall behind after entering the 21st century. ?Although it can be used by pinching the nose, it cannot meet the future militarys performance pursuit of tactical transport aircraft. No matter how rich a country is, it is necessary to live a careful life. In fact, the Il-76''s requirements for take-off and landing conditions are almost the same as those of its predecessor An-12, which is the prototype of the Y-8. As for the C17, although its maximum takeoff weight and carrying capacity are much higher than those of the IL-76, it still maintains considerable site adaptability and can take off and land on higher-level non-paved runways. Under such circumstances, the weight capacity may be affected. Even the Soviet Army has seriously considered the crazy idea of ??completely abandoning the fundamentalist tactical transport aircraft and directly using the Il-76 to match the higher-end An-22. ?However, even the United States and the Soviet Union at the peak of the Cold War could not bear the high cost and waste of life caused by having strategic transport aircraft perform chores. In the end, they continued to use the An-12 and C130 honestly. On the other hand, with the hindsight of a reborn person, the future "cross-border tactical transport aircraft" with a volume of more than 100 tons can actually have different positioning for different users. For large countries, it can be used as a lower-grade tactical aircraft, while for some smaller second-tier countries, it can be used as the main force, paired with lower-grade twin-engine light transport aircraft. The A400M, which Europeans are currently arguing about, will be positioned like this in the future. ?But then again, with the hindsight of a reborn person, due to the policy background of Ermao''s side, neither Madasic nor Antonov are good partners. ?Especially for long-term projects such as large aircraft, whose development cycle is bound to be counted in years, there are too many unstable factors at the non-technical level in the middle. ?The money spent is still a small thing, but if it delays the progress of project development, it will be a big problem. ??While Chang Haonan was struggling, the two sides fighting in the venue also fell into a confrontation. Overall, the side that opposes, or at least does not support, this cooperation has a slight upper hand, but it cannot completely overwhelm the other side. Their main concern is that the investment is too large and the cycle is too long, and the Y8 that has just been modified is not unusable. At present, the construction of the military equipment system in the new era is in full swing. The next generation of main battle equipment for the three services and one independent service has not yet been When it comes to landing, we must give priority to getting combat equipment first. The reasons for the supporters are also very good. Although our country''s aviation industry has developed rapidly recently, it is still completely blank in the field of more than 100 tons. At present, the R&D forces of various factories are already in an overloaded working state. In the short term, It is impossible to have anyone available to tackle this kind of project within the time frame. Transport aircraft are indeed not considered main battle equipment, but considering that the People''s Liberation Army has a very clear cross-sea combat goal, the huge territory and complex traffic conditions also determine that roads and railways cannot fully cope with all situations, so people who do not worry about the long-term must have short-term worries. Now that the opportunity is in front of me, there is no reason to let it go. ?However, even if a penny can stump a hero, the voice of the supporters is still smaller after all. Therefore, Zhou Rong, who advocated for the agreement, once again turned her attention to Chang Haonan. The opposition party also looked at him nervously, who had been silent. ?After being silent for a long time, Chang Haonan finally took advantage of an opportunity to express his opinion: I think we should be more cautious about the An-70 project Then, the whole venue fell silent. Its not that he can really make the final decision, but almost no one expected that he would stand on the opposing side. After all, judging from past experience, Chang Haonans performance has always been an extremely radical technical school. Especially this year, his layout of the civil aviation industry seems to have deepened this impression. ? And even from a profit perspective, Chang Haonan, who was born in the aviation industry system, has no reason to give up such a big job. For a moment, no one knew what to say now. ?However, Chang Haonan only paused briefly and continued to explain: Our military does have a large demand for tactical airlift. From the perspective of technology and equipment system, a tactical transport aircraft that is more advanced than the Y-8 is obviously valuable. "I have two main concerns about An70. One is that after the alliance disintegrated, Kiev did not maintain a stable situation. The penetration of Western forces was very serious. It is difficult for me to believe that the two sides can maintain a deep relationship for several years. Technical cooperation. This judgment was indeed a bit early in the late 1990s. I havent felt this in recent years... ?As expected, someone next to me muttered. Chang Haonan said in his heart that you will feel it after another year or two. However, it was obviously impossible to explain the reason for using the future as a reference, so he jumped directly to the second point just mentioned: "Also, our main strategic transport aircraft in the near future is the lengthened and heavier Il-76MF. In the future, it may be a 200-ton transport aircraft developed by ourselves. The take-off weight of the An-70 is also 140 tons. Whether it is for our military, It is still a bit too big for potential foreign customers in the future. A model with a take-off weight of 110 tons and a maximum load of about 30 tons will be more in line with the positioning. " But even if this is the case, we probably wont have the extra strength to develop new models in a short period of time, and after all, Comrade Haonan, you are too busy to do everything yourself, right? Zhou Rong still wanted to struggle. Director Zhou, dont worry, I didnt say nothing or do nothing Of course, Chang Haonan does not want to stand on the other side completely: For Ermao, we should focus on obtaining the legacy left when the alliance disintegrated, so that the cycle is shorter, and we dont have to worry about the other party suddenly changing their mind or other problems in the middle of the cooperation. Soviet legacy The other person sitting opposite was stunned: Although An70 has been developed since the 1980s, it was mainly completed after the alliance disintegrated. In fact, it is not considered a legacy..." Im not talking about An 70, ?Chang Haonan waved his hands and at the same time made a tactical retreat: The most precious legacy left by Big Brother is actually the technical personnel scattered in various countries. We can definitely find a way to poach these people! (End of this chapter) Chapter 465 Friendship Project! Chapter 465 Friendship Plan! You mean, we directly cooperate with the businessman in Kiev and employ open and legal methods to employ researchers there who are worried about their livelihood? Huai Guomo, who had been silent before, his eyes lit up and he was obviously interested: This idea has never been tried in the past... When he said that he had not tried it, of course he meant that he had not tried the method proposed by Chang Haonan, not that he had not tried to recruit people from there. In fact, when the alliance first disintegrated in 1991, some people realized the valuable value of those Soviet experts and proposed a systematic talent introduction plan. However, first of all, at that time, everyone had no experience in doing this kind of thing and did not have a clear goal. They could only try their luck by casting a wide net. Secondly, the situation on China''s own side in the early 1990s was not very attractive. The main reason is that there are not that many projects and companies in China that can support this group of people, so although the efforts are in the right direction, the final implementation is relatively average. By 1997, the best time window had actually been missed. At least the possibility of poaching people from Da Mao is close to zero - those who want to leave have already gone to the United States or Germany, and the remaining ones who chose to stay in the early 1990s are basically unlikely to change their minds now. . Not only that, Da Mao himself has begun to use the habits and similar cultures of the past few decades to poach people from other CIS countries. Fortunately, the current situation in China is much better than in the early 1990s or in the previous life. At least it can be guaranteed that no matter what kind of talents are brought back, there will be places for others to use them. At best, its just not a complete match. ?For example, those who built aircraft carriers in the past may now have to build frigates for several years first... But its better than continuing to stay with Ermao. Sure enough, Zhang Dongxu also talked about what happened in the early 1990s: "If this is the case, we still need to learn from previous lessons. We have tried to do this a few years ago, but on the one hand, our country was not attractive at that time. On the other hand... In fact, it also happened during the operation. Had some problems Everyone''s attention was immediately attracted to him. Chang Haonan didnt know too many details about the introduction that year. He only read a few words from the unit files of several scientific research institutes or local chronicles before his rebirth. He only knew that the Ermao experts who later lived and worked in China on a large scale were basically the second batch of talents introduced after entering the new century. But what happened in the intervening years, the relevant records are basically blank. As for the people off the court, most of them were still young cadres at the first level at that time. The divisional level is indeed not low in the outside world, but because ministries and commissions have almost no departments, they are actually the heads of small departments at the lowest level, and their scope of knowledge is quite limited. ?Although the level has increased later, no one can go to the archives to look through piles of old papers from several years ago, so no one has the opportunity to come into contact with these contents. ?Now that Zhang Dongxu said this, everyone is a little curious about the "Secret History of xx". No one can refuse such things as gossip. Even including Ding Gaoheng. ??He has been the director of the Commission of Science, Technology and Industry for National Defense for ten years. Although he holds a military rank, he is actually not very clear about things outside his unit. "I happened to be working in the Ministry of Electronics Industry at that time, and was responsible for handling a group of Belarusian experts coming to China, about 20 people. At that time, in order to reduce the sensitivity, the first batch of people introduced were not involved in the military industry field, so this Not many people in the Science and Technology Commission may know about it. Zhang Dongxus experience is also quite strange. He once served as the general manager of the Electronic Industry Corporation, and he was on the same level as Ding Gaoheng. However, because the Ministry of Electronic Industry had not been abolished at this time, the functions and positioning of the two units completely overlapped. Later, the Electronic Industry The Industrial Corporation was downgraded and finally delisted altogether. As the general manager, he really had no place to go, so he was transferred to the Science and Technology Commission as deputy director. It is also for this reason that he often deliberately lowers his sense of presence and rarely speaks actively except for leadership team meetings. However, this time he rarely spoke: "There may have been more than a hundred people who came to China from 1992 to 1993, but in the end basically none stayed, including those I contacted. Later I concluded that one is that the cultural differences between the two sides are still relatively large. In a short period of time, After all, coming to China to work and living in China for a long time are two different things. Many people can accept it at first, but it will be difficult for them to adapt after a long time. But thats not the most important thing. At this point, Zhang Dongxu adjusted his sitting posture and his tone became serious: "There are some people within us who are very unreliable in their thinking. They can only praise the West in three sentences. They talk about the United States and Europe in everything. It is a joke. If people believe this, why not go to the United States or Europe? Why choose us, China? "There are also some people who think that others cannot understand Chinese, so they publicly say things that damage relationships, or they just randomly translate what others say. As a result, there are two old experts in the family who have been to China when they were young and have learned some Chinese. , and sent the report directly to me..." Chang Haonan smiled helplessly. Although it was the first time for him to hear these contents, judging from the current situation in the 1990s, it did not seem to be very surprising... After a brief pause, Zhang Dongxu continued: "There is another problem. It is different from the past few years. Americans and Europeans have penetrated the CIS countries very hard. If we recruit people again, especially if we still recruit people in an open way, we will have to Consider whether the other party may work for Western intelligence agencies, thus threatening our national defense security? As expected of someone who has had relevant experience, every point he puts forward is tricky but very realistic. Well...what Lao Zhang said, we really need to think about these things in advance..." Ding Gaoheng, who was sitting in the first place, also frowned slightly. Chang Haonan briefly recalled the subsequent successful experience and found that it seemed to be designed to solve several problems raised by Zhang Dongxu. Just copy the wisdom of later generations. Actually, as long as the scale increases, this matter will not be difficult to solve. ?He looked at the people in front of him and said: "You can choose several places to build a group of communities mainly for these people to live in. In this way, there will be many fewer translators and other staff needed, and the screening process can be stricter. For those who come to China, , being surrounded by mostly familiar people makes it easier to adapt to the environment. "For the same reason, the pressure on comrades in the security department will be much less, and we can''t just let them get in touch with the core things right away. We must do it step by step, starting with less sensitive peripheral projects... " "In addition, we don''t have to worry about preparing extra things that foreigners are used to. In places like this, there will naturally be smart people who provide living facilities that meet their needs. After all, we are in the era of market economy, and we also We need to be more flexible and not let the organization take over everything..." ?This method can be said to have been proven for a long time in the previous life, and there have been basically no major problems. It is naturally flawless. At the beginning, everyone just listened casually, but within a few seconds, everyone began to think seriously. For a while, no one could find anything wrong with it. At the end of the day, the senior people from the Department of International Cooperation and the Department of Personnel and Education who came to the meeting even started taking notes directly. ? Ding Gaoheng and the three deputy directors sitting nearby looked at each other, and they all saw the same answer in each other''s eyes. Worth a try. We can apply for this method. After passing it, we will conduct a batch of pilot projects first. Lets take small steps and run quickly to see the effect. Ding Gaoheng said this, which was obviously the final word: By the way, you can give me a nicer name, lets call it Friendship Project! (End of this chapter) Chapter 466 Hardcore ruthless person Chapter 466: Hard-core ruthless person Once the general direction is set, all that remains is the details. Are we entrusting that businessman to register a company directly in Ermao, specifically responsible for selecting and transporting personnel to the country? The director of the International Cooperation Department was taking notes quickly and raised his head to confirm with Ding Gaoheng. Although they have a name like the International Cooperation Department, they actually do not directly interface with foreign countries. Instead, they are mainly responsible for the management of military export contracts and the approval of military trade licenses. Having said that, we can only catch the ducks first. After all, other units are even less relevant. This needs to be communicated to the other party, but no matter what, the company can be registered in his name and the profits generated can also be handed over to him, but the staff must be sent by us, at least part of it must be sent by us. " Ding Gaoheng replied: "In addition, don''t register locally. There are too many restrictions. Now Ermao is completely open to foreign investment. We can register with a third party, such as the Cayman Islands, or we should register in Hong Kong Island no matter what. , This way it will be relatively hidden. Although it is said to be hidden, in fact, this situation is basically an open card, and the main function is to maintain dignity between each other. ? Even Americans used to recruit people through third parties in Europe. It''s one thing for everyone to know it, but it''s another thing not to act. After answering, Ding Gaoheng paused and continued to add: "One more thing, with the resources we can currently devote to it, we definitely cannot refuse everyone who comes like the Americans. In addition, this is a pilot project. If the research directions of the introduced objects are too complex, it will not be conducive to people like Xiao Chang. Management as mentioned just now, so we still need to determine a key direction first. In this regard, several system engineering departments will submit a report after they return, and we will decide later." The meeting is dismissed! Zhou Rong wanted to talk to Chang Haonan, but before she could get up, Ding Gaoheng and Huai Guomo came to the latter''s side. Of course there is no chance again. Xiao Chang, when I called you yesterday, were you in Shengjing handling the Taihang project? The three of them walked together and left the conference room one after another. Actually, I mainly went to Factory 112 to see the first two domestically produced J-11s coming off the production line. I went to Factory 606 by the way. There is absolutely no need for Chang Haonan to hide such a trivial matter: The progress in Taihang seems to be okay now. I can basically deal with most problems here in the capital. For the rest... an occasional trip to Shengjing is enough. Although it is the first time for Xiao Chang to be the chief designer, I feel that he is more skilled than other veterans... I think Xiao Chang should be asked to publish a teaching material in the future, called "How to Become a Chief Designer". Huai Guomo, who was walking on the other side, said half-jokingly: If our countrys scientific researchers can be as comfortable as he is in doing projects, then a lot of unnecessary losses can be avoided Yes, in the years when I was studying frontline work alone, I knew almost twenty comrades who died of illness or were forced to leave their jobs due to overwork Ding Gaoheng sighed slightly. As an important participant in the two bombs and one satellite, he naturally felt sad about what Huai Guomo said: "However, this kind of thing still depends on your brain. I''m afraid just reading books is not very useful. When I followed Qian Lao, I felt that even if he did ten things at a time, he was more organized than me when doing one thing. And It''s still fast, but I can''t accept it..." The content of the chat between the two gradually switched to their own past experiences. Chang Haonan, who couldn''t say anything for a while, was happy to listen to some short stories that he couldn''t read in books in his previous life. It wasnt until Ding Gaohengs office that we returned to the topic: "By the way, Xiao Chang, for the die forging press project you mentioned last time, the Second System Engineering Department has already freed up staff and funds, but there is really no extra space at Huaishuling, and the conditions are Its just average???Chang Haonan shook his head and said it didnt matter: "It doesn''t matter. Comrade Yan Yongnian is at Qinghua University, and I am at Beijing Airlines. The hardware conditions for preliminary research are there. When equipment testing is really needed, we will definitely go to Jiangcheng, so as long as the funds and staff can To solve it, it doesnt matter if there is an independent office location. And by the end of this year, the office space of our Torch Group will be almost free, and it will be more convenient to use the space there. Why is the Science and Technology Commission moving so slowly? Your company has been established for several months and you still dont have a formal office? Ding Gaoheng sorted out the scattered documents and information on his desk and dissed the unit next door. The official office location is currently registered at the Academy of Sciences. It wont be a hassle to change it later. The main thing is that the place was previously used by a company that went bankrupt after restructuring. It is still in the liquidation stage, so we dont have to go in. Chang Haonan doesnt care. Even if the Torch Group moves to a new location, the two major supercomputers cannot move with it, so the core business personnel will actually have to stay at Beihang University and the Institute of Computing Technology. In other words, it may appear more formal when discussing business. While speaking, he saw a report in Ding Gaoheng''s hand out of the corner of his eye. ?Then he almost cursed: woc There is a photo on the report, and the person in the photo is something he has seen, or rather is very familiar with: Old Wu? ?His voice stopped Ding Gaohengs movements: Do you know him? Yes. Chang Haonan nodded, We are classmates. He graduated in the same year as you? Ding Gaoheng was also a little surprised. The face of the man in the photo was indeed young, but he had always subconsciously thought that he was someone who had gone wild without much schooling and had quite a lot of social experience. Although he had been addressed as "businessman" during the meeting just now, everyone knew in their hearts that they were actually a group of gangsters, but on a larger scale and with more formal procedures. ??At least it can be considered a gray industry, not a pure outlaw, and it can barely be justified by turning a blind eye. ?In the 1980s and 1990s, many people who started from scratch and eventually made a fortune were such hard-core and ruthless people. But now it seems that the other party is still a major? Yes, but he has actually been doing this for a long time, probably since his sophomore year. Chang Haonan is actually not very clear about the specific situation of Wu Yifan''s business. Even the fact that Wu Yifan is a bad guy was only discovered by chance when they met before the Chinese New Year. Then how about Ding Gaoheng stared at the report for a while, then looked up at Chang Haonan: You are responsible for contacting him? (End of this chapter) Chapter 467 Japans bearing industry feels a little uneasy Chapter 467 The Japanese bearing industry feels a little uneasy... Not so good ?Chang Haonan hesitated for a moment: Isnt it necessary to avoid this kind of thing? Well, even if you want to avoid suspicion, its only for immediate family members. You two are not related by blood, you are just classmates, so there is nothing to avoid. Ding Gaoheng immediately waved his hand and said there was no need to worry: "Furthermore, he is just a partner of that company. The big boss is someone else. If you are really worried, just use the name of Torch Company to negotiate with them." Director Ding, I currently have no plans to involve in cross-border labor dispatch For Chang Haonan, Torch Company, as a company whose main products are algorithms and software, would involve too much energy if the scale was too large, and it would be difficult to turn the ship around, so its flexibility is far inferior to the current studio-like experience. quantity. ?Hence, as long as he can continue to work deeply in the field of numerical computing, he has no plans to expand the scope and scale of his business. ? Judging from the experience of M50NiL steel and new bearings, it is entirely feasible to sell framework solutions and hand over specific research and development work to other companies. ? In this way, we can maintain a relatively streamlined personnel structure and prevent Torch Company from becoming a behemoth with rigid responses. Secondly, we can also work in the same direction with other companies, form synergy, and create combined punches... In short, we cannot eat and occupy everything to avoid internal fighting. I didnt ask you to do business... Ding Gaoheng said, sorting out the report in his hand and handing it to Chang Haonan: "For things like this, they are the country''s white gloves. They certainly can''t sign a contract openly. Many conditions can only be verbal guarantees, which rely heavily on the trust between the two parties. We already know each other. You are considered young and promising now. If you come forward, it will be easier to convince others..." Ohthats fine. ?Chang Haonan took the file, glanced at it and nodded. Honestly speaking, he is actually a very low-key person. But since you are pretending to be under orders, you can only reluctantly go against your true intentions... ?At the same time, NSK Groups office in China. ? Qing Jingbin placed several bearing samples in small plastic bags and the corresponding test reports on Haneda Shunsuke''s desk. After an on-site inspection a few days ago, he found that Jinling Motors had changed the supplier of wheel hub bearings and manual transmission bearings from NSK to Huaxia Enterprises, and then flew non-stop to another user who also reduced the order quantity, that is, Bingcheng Automobile Group investigation. ?Originally, because Bingcheng was too far away, they actually had few connections there. Qing Jingbin was even prepared for a protracted war. This time, however, the results came out faster. Perhaps because of its proximity to the market, Bingcheng Motors after-sales and maintenance departments have begun to put in new domestically produced bearings, although the new cars they sell are still equipped with NSK products. Of course, another reason is that Songhuajiang is positioned as a passenger car. Replacing parts such as wheel hub bearings only requires single product testing, and does not require complete vehicle testing like Jinling Ivecos commercial vehicles, so it will save a lot of money. Much time. In short, he did not use any of the words he had prepared. He just spent some money to buy several new wheel bearings in batches, and then took them back as samples for analysis and testing. The test report was placed in front of Shunsuke Haneda. ?For a moment, Haneda Shunsuke thought there was something wrong with his language module, so he misread the contents of the inspection report Because the test results clearly show that the performance of these samples bought from Bingcheng is even better than the products produced by NSK. Qingjun, does this report mean that the performance of these bearings is better than those produced by our company? After confirming the contents of the report again and again, Haneda, who still couldnt believe it, asked Qing Jingbin again. "Yes, we have analyzed the entire bearing, as well as the inner and outer rings, **** and cages. The results show that the life expectancy of the bearing is 150% of that of our company''s products of the same model. The stiffness and strength are basically the same, and the drag moment Then its only 71%, and the consistency is very high. Qing Jingbin nodded and replied in a solemn tone: In general...it is better than our products in all aspects. In fact, it was difficult for him to believe such a result at first. You must know that the bearings produced by Huaxia before did not even reach one-fifth of the life of NSK products, and because the drag torque is larger and more irregular, it will even lead to increased fuel consumption and reduced driving stability of the vehicle. There is no competition at all. force. However, the performance of the several bearings I bought this time is simply reborn. "Is that what you mentioned last time...produced by Northeast Special Steel?" ?Heda Shunsuke picked up one of the bags containing bearing samples from the table, put it in front of his eyes and looked at it carefully, as if he could see the difference with his naked eyes. Well... I went there to find out on the spot. The manufacturer of these bearings is the local Bingcheng Bearing Group in Bingcheng. Northeast Special Steel should have provided raw materials or key components such as balls. What about the price? How about the price? ? Being able to ask such a question obviously shows that Shunsuke Haneda has lost his mind. ??If the price is higher than imported bearings, then Jinling Motors and Bingcheng Motors may not consider switching to domestic models from the beginning... Sure enough, Qing Jingbin said that it is exactly the same as the previous NSK model, priced at 200 yuan each, and buying 4 at a time costs 700 yuan. ?This price made Haneda Shunsuke want to express his guilt when he heard it. ? Their bearings are produced and shipped to China at a cost of about 30 yuan each. If they are sold to an OEM, they earn 200% or 100 yuan. ? And the other party doesnt even need to change the packaging, and its 100% profit again... ?No wonder they all want to build cars... Having said that, since the other partys quotation is the same, it means that the supply costs of both parties are at least basically the same. Maybe the domestically produced ones will be cheaper. Otherwise, from the perspective of car companies, if they can only improve performance without reducing costs, there is not much incentive to replace a new component. At least there is no need to be in such a hurry. Just wait until next year when the model is revised, and it can be regarded as an upgrade. After all, based on further calculations based on the data in the test report, after replacing the bearings, the car''s fuel consumption can be reduced by about 0.2L per 100 kilometers... Of course, what NSK supplies to Bingcheng Motors is not the highest-end model, but for mechanical products, you get what you pay for, two cents for a dime, and three cents for a dollar. If you want to ensure performance by improving the product level If so, the price difference is definitely more than a few times. In other words, there is nothing we can do for the time being... Okay, its okay, you can go down first. The upset Shunsuke Haneda waved his hand towards Qing Jingbin, indicating that he could leave. ?However, the latter did not turn around immediately, but asked tentatively: Mr. Haneda, how do you think we should deal with this matter? Hearing this question, Haneda Shunsuke glared at his subordinate, who was usually very discerning ?If he had a way to deal with it, he would have come up with it long ago. ?However, at this time, of course, it was impossible for him to admit this publicly, so he had to find a random excuse to explain it: Of course we want the company to speed up the construction of factories and reduce the cost of bearings. The worst case scenario is nothing more than a price war. This sentence is half true and half false. The progress of the company''s factory construction does not really count, but price wars are indeed one of his methods to keep the bottom line. When competing with SKF for the market, this method has been tried and tested repeatedly. Of course, SKFs biggest advantage is that German car companies entered Chinas joint ventures early, which laid a solid foundation for European bearing companies. However, the response of Japanese car companies was much slower... Minister Haneda, a price war with Chinese companies is definitely not worth the loss for us... Qing Jingbin has already called Haneda Shunsuke a stupid pig in his heart, but he still can''t show it on his face: "Our NSK is inherently lower than SKF in terms of positioning and cost. Of course it doesn''t matter if we have a price war with them, but Huaxia Bearing has always been synonymous with the lowest-end products. If we really compete with Bingcheng Bearing on price , that would be equivalent to directly destroying NSKs brand. Even if we win, we will only injure the enemy 800 and lose 1,000 to ourselves..." Hearing this analysis, Haneda frowned secretly: "Of course I know that a price war is not a good idea, but the quality of the other party''s bearings is already better, and it is impossible for the head office to update the products in a short time. Without a price war, the market performance will be affected sooner or later. This is absolutely unacceptable to you and me." Or, Mr. Qing, do you have a better idea? (End of this chapter) Chapter 468 media offensive Chapter 468 Media Offensive Although Haneda Shunsuke and Qing Jingbin don''t think highly of each other in their hearts, it is their common interest to upgrade the NSK Group''s China office to the China headquarters. If at this juncture, the revenue level of the Chinese market is not as expected , then even if the China headquarters is established, it is possible that a new head of the headquarters will be parachuted in for management. By then, the good days of the two of them covering the sky with one hand will come to an end. Lets not talk about the direct benefits brought by promotion and salary increase. In recent years, Haneda Shunsuke smuggled bearings from Japan, removed the packaging, and then sold them through Qing Jingbins personal relationship. Bringing them nearly six figures more money. You must know that these bearings do not go to the company''s account, so whatever you make goes into your own pocket. Even for Haneda Shunsuke, who came from Japan, tens of thousands of yuan is a lot of extra income, let alone Qing Jingbin, who is Chinese. ?These days, the monthly salary of most people is only a few hundred yuan. Even in Shanghai, a monthly income of tens of thousands is definitely superior to others. But if a new manager comes from above, the best result is that there will be one more person to share the money. And the bulk of it must be taken away. Even if it doesn''t work well, this financial path may be cut off. So, no matter what, the market share and profits of NSK bearings in China must be guaranteed. Mr. Haneda, in fact, as long as the performance of bearings is not too bad, users cannot detect them. Qing Jingbin glanced at a chair next to him. He had actually been standing there for a while, but Haneda didn''t say anything, so he couldn''t help but sit down: "The bearing produced by Bingcheng does have better performance than ours, but for car companies, as long as the warranty period is out, long life is not an advantage at all. It is a good thing if it breaks down as soon as possible. There is also fuel consumption, 0.2 L per 100 kilometers is indeed very impressive in our industry, but for customers who actually use cars, climate, road conditions, and footwork will all affect the actual fuel consumption. In fact, the one-digit difference after the decimal point is not felt at all. , as for stiffness and strength, the difference is within 10%. NSK bearings cannot withstand the same external impact, and Bingcheng''s bearings can basically not withstand it..." So? Lets get to the point. ?Heda Shunsuke felt that he hated this feeling, but now he could only continue to ask patiently. "We can spend some money to buy a few pages in some influential media to criticize Bingcheng Motors and Jinling Motors for using domestic parts instead of imported parts. If that doesn''t work, we can fake a few cases because they use Huaxia Bearings. As for the accidents caused, few people would believe that the bearings produced in China are of better quality than ours. Let us clear out their competitors, such as Changan in the mini car field and Ford in the commercial vehicle field. By then, these two The sales of car companies will definitely be affected..." By the way, Mr. Qing, please sit down first and say... It was only then that Haneda across from him finally remembered to ask Qing Jingbin to sit down. ??The latter finally got a break and pulled the chair next to him, sat up straight and then continued: "For us, the top priority is to stop losses and not let more car companies give up our products. Such a combination of punches can be regarded as a deterrent to other manufacturers, so that they dare not replace our products casually. At the same time, it can also cultivate consumer awareness..." In this year when Internet penetration is still quite low, paper newspapers and television are almost the only channels through which most people can obtain information. Compared with China, which was still quite young at this time, the Japanese are using public opinion to build momentum. The foundation in this aspect is obviously much deeper. Furthermore, due to some special reasons, they also have a closer relationship with some influential Chinese media. At this time in 1997, soft articles such as "Competition in Summer Camp" were already flying all over the sky. It''s just that after Japanese products entered the Chinese market, they were almost indiscriminately slaughtered, so Japanese companies are not very aware of this aspect, especially Shunsuke Haneda, who really climbed up from the bottom of the sales staff. Such people often have good courage and courage. , but the knowledge is average. On the contrary, Qing Jingbin, as a Chinese, understands the power of these propagandas better. When he was in school, he knew that the story about the summer camp must be false What primary school student can walk 50 kilometers with heavy weight? ??But in Qing Jingbins view, the fact that so many people believed this kind of fake article even after it was published, doesnt it prove that Chinese people are easy to deceive? ?His plan just now even said that he would bribe several media outlets at the same time, which was extremely stable. "this" After hearing Qing Jingbins analysis, Haneda Shunsuke fell into hesitation. ?Of course he knew that what the other party said was reasonable. When the quality gap itself is not too big, the brand effect can fully support higher prices and higher sales volume. But the premise is that the quality gap is really not too big... There is one thing that only Shunsuke Haneda, the head of NSKs China office, knows in China. That is, when NSK was in a price war with SKF several years ago, in order to reduce costs and ensure profits, it secretly lowered the production standards of mass-produced models, but the content of the factory inspection report was still the same as before. In other words, the actual performance of NSK bearings is actually much worse than what everyone thought, including Qing Jingbin, who only read the report. ?In the past, their products were always between high-end European products and ultra-low-end Chinese products. Even if the performance was lower, it would not change this situation, so there were no major incidents in the past few years. But now, the trouble is a bit big... Take minicars as an example. As a Japanese who has lived in China for several years, Shunsuke Haneda knows very well that most of the people who buy this kind of cars are mixed with passengers and cargo, and most of them are used in a state of severe overloading and lack of maintenance. In this case, if the wheel hub bearing originally guaranteed for 50,000 kilometers breaks down even after 10,000 kilometers, the user has nothing to say, because when the car is repaired, it can be seen at a glance that the car has been overloaded for a long time, and the warranty will definitely be denied. of. ??But after replacing the new bearings, since the overall strength and material surface hardness far exceed the NSK model after the standard was lowered, even in the extreme state, it may be able to run for 50,000 kilometers... This gap is too big. Even if the temporary defeat can be saved by buying the media, within a year, major OEMs will find that something is wrong. ?But it was impossible for Shunsuke Haneda to talk to Qing Jingbin about this kind of thing, so he could only brainstorm quickly to find a solution on his own. Mr. Haneda, what do you think...of this method? Qing Jingbin, who had been waiting for a reply for a long time, couldn''t help but feel a little anxious. He really didnt understand what the other party was hesitating about. After a long time, Haneda Shunsuke raised his head again: "Qingjun, I agree with your approach in principle, but such a major matter still needs to be reported to the group headquarters for decision. Therefore, it may take a few days to determine what to do specifically." Hearing this, Qing Jingbin finally breathed a sigh of relief. ?In his opinion, as long as he can punch out this combination, it will definitely not be a problem at least until NSK''s Huaxia factory is completed. Isnt this time enough to develop a new generation of products with better performance? In the end, Qing Jingbin still feels that even if Bingcheng Bearing and Northeast Special Steel obtained the technology from nowhere, they would not have the ability to upgrade in the future. As long as NSK reinvests in research and development, everything will be fine. Its just that after working in a Japanese company for many years, he is still not confident about the efficiency of the Japanese: Mr. Haneda, we cant delay this matter for too long. We have long nights and many dreams... Dont worry, it will be soon. ?Heda Shunsuke''s tone was a little impatient. What he is about to tell the headquarters must not be allowed to be known to this Chinese person... (End of this chapter) Chapter 469 OEM production Chapter 469 OEM production Actually, Shunsuke Hanedas idea is also very simple. The actions at the media level are based on what Qing Jingbin said. As for products, it is impossible to raise the standards again. On the one hand, the original standards are not as good as these purchased bearing samples. On the other hand, their current costs are already very high. The little cost extracted on the production line is quickly consumed by the complicated administrative processes. If the standards are adjusted back to what they were a few years ago, a bearing will be shipped after it is manufactured. It will be equivalent to about 60-70 yuan in China, which will only lead to further compression of profit margins and make it even less competitive. So Shunsuke Haneda just came up with a bold idea. ??It is to find a third-party company with a relatively hidden identity, buy the finished products directly from Bingcheng Bearing, and then sell them under OEM. ??The quality of my product is exactly the same as yours. I have replaced it with the noble NSK company LOGO, and coupled with the media offensive as a combined punch, the price is only 50% higher. Isn''t it very conscientious? As a result, their profit margin for each bearing sold in China is much higher than in the past, and even compared to the real production side Bingcheng Bearing Group. Perfect. Later that day, after Haneda Shunsuke expressed his thoughts to his direct superior at the headquarters, Oda Tatsuki, even he did not expect that the other party would say it almost without thinking... Agreed. Mr. Odamoto, this Even as a close confidant of Oda Tatsumi, Haneda was a little confused by the other party''s reaction. ?He thought about it. When he first saw the test report, his first reaction was that he didn''t believe it at all. How can Chinese people make better bearings than NSK? ? Even if they lower the production standards, it should be a dimensionality reduction attack. Oda Tatsuki accepted the report almost immediately... ?He almost blurted out and wanted to ask the other party, have you never thought about the authenticity of the content? Fortunately, I held it in in the end. Haneda-kun, do you want to ask why I believed this report so quickly? I dont know if it was Hanedas illusion. He found that Oda Tatsukis mood on the phone sounded even a little excited, but he nodded immediately: Yes, Minister Odamoto. "Because a few days ago, the marketing department on Chunzhongjima asked us if we had put cheap low-end bearings in China to seize the market. Because they found that the sales data of bearing parts were abnormal, and several companies reduced their sales or even stopped altogether. Orders for the fourth quarter of this year or next year have been cancelled. As a senior executive at the head office level, Odas access to information may not be as direct as Shunsuke Hanedas in China, but he is definitely not a stubborn person living in an information cocoon: So, I speculated at that time that maybe the Chinese people had come up with some kind of substitute. But, sir, how could the Chinese suddenly..." In fact, even now, Haneda still finds it unbelievable. The development of the manufacturing industry must be based on some truth, right? Who knows, maybe they bought some technology from the Russians or some other country. Oda on the other end of the phone still had a relaxed tone, and there was no sense of urgency: "In short, it''s not important to me. Our bearings are mainly supplied to domestic companies and exported to North America, South Korea and Southeast Asia. The Chinese will not be able to threaten these places in a short time. What''s more, the question you proposed method, then there is nothing to worry about. "in addition" ?Oda hesitated for a moment, but continued after a moment: "The timing of this incident is just right. It can be used to attack those in the Inagaki faction. If it is done well, it is not impossible for me to take over the task force next year..." ?Heda Shunsuke suddenly understood. Inagaki Eiichi, the leader of the Inagaki faction, is the head of the group responsible for product development and production. He has always been at odds with Oda, who is in charge of marketing. However, NSK''s main business is machinery manufacturing after all, especially in the enterprise-oriented field such as bearings, so later The author has always been suppressed. ??This time is just the right time for a counterattack. ? And if Oda can be promoted to a full-time job, Haneda, his confidant, will naturally have a bright future. So he couldnt wait to ask: Well, sir, regarding the matter of building a factory in China... should you consider shelving it for now? "no need." ?Oda immediately rejected the proposal: "First of all, we can''t force the people on Inagaki''s side to a dead end. If he really risked his life and perished with the entire group, it wouldn''t be easy to solve. Secondly, if something happens in the future, we can also logically remove the bearing. The problem of reduced quality is put on the Chinese people. ? ?The internal fighting between Oda and Inagaki is a bit like the Cold War. Both sides have enough inside information to make NSK explode, but like nuclear weapons, no one is willing to use them unless they go to the last step. Who wants to die if he can live? The bearings produced by the Huaxia factory... Make some differences that are not reflected in the contract, and sell them at a discount as low-end products Okay, Ill do it right away ?At this time, Chang Haonan didnt know that his saucy operations had already begun to change the world, at least the pattern of East Asias manufacturing industry. The new equipment he had been waiting for for a long time finally arrived. Although the name of the new institution established by Beijing Airlines is "Compressor Research Center", it is just selling dog meat on sheep''s head. In fact, according to Tang Lintian''s ambition, this should become a full-field research institution for aero-engines. So when he first formulated the plan, he not only limited his attention to experimental compressors. There is also a lot of procurement of experimental equipment related to combustion chambers and turbines. Including a non-contact temperature measuring platform that Chang Haonan urgently needs right now. Of course, it is not just as simple as a thermometer, but also includes a flame tube for combustion heating, and a compressor that can deliver sufficient air flow, so that the working conditions of the combustion chamber or turbine can be simulated during engine operation. Liu Yongquan stood not far from Chang Haonan, looking down at the operating instructions in front of him, giving instructions one after another while the latter was climbing up and down to adjust the equipment. Originally, given Chang Haonan''s current status, this kind of thing could be completed by a specialized equipment operator, but this aerospace thermometer was customized by him from the 410 Factory based on similar equipment he had seen in later generations. It was debugged for the first time. I really dont trust anyone else to do it. Mr. Chang, are you planning to switch to the impingement cooling method on our new engine? ??While the equipment computer started the self-test, Liu Yongquan raised his head and asked Chang Haonan. ?Although he is mainly responsible for the design of the compressor part, because he follows Chang Haonan all day long, he is inevitably exposed to several other aspects of work. ? Looking at the test data on the table next to him, Liu Yongquan really couldnt think of any other way to increase the overall cooling efficiency to 0.7 or higher. You must know that even on CFM56 or AL31F turbine blades, this number is only about 0.4-0.5. It is true that higher cooling efficiency can reduce the requirements for turbine materials, or increase the service life when the materials are the same, but impingement cooling itself is not friendly to jet engines that require stable airflow, and large-area impingement cooling requires jets seams will also cause unnecessary flow loss. Of course not ?Chang Haonan shook his head and started to set the initial test parameters on the computer: I have a more imaginative way! (End of this chapter) Chapter 470 Youre right, MIT got it wrong Chapter 470 You are right, MIT is wrong More imaginative? ?Liu Yongquan, holding the operating document in his hand, was stunned. "Ah, I have read an MIT paper before and found that after adjusting the arrangement of cooling holes into a multi-layer array, although the effectiveness of each row of jets quickly decays behind the air film holes, due to the difference between the front row of cooling air and With the mixing of the mainstream, the ambient temperature of the air film holes in the rear row is reduced, so that the effectiveness is gradually increased along the flow direction, and a better wall cooling effect can be achieved. " ?Chang Haonan stopped what he was doing and turned back to look at Liu Yongquan: You must have seen it too, right? At this moment, the latter suddenly felt a chill on the back of his neck, and he felt like he was back to the time when he was just a graduate student ten years ago and was called over for a group meeting. ???PTSD is a crime. Obviously Chang Haonan is much younger than him, but this tone, this look, this question... ??It''s almost like a mentor who looks down on new graduate students. I...Ive seen it. Liu Yongquan wiped the non-existent sweat on Zhengliangs head, and his mind was rapidly thinking about whether he had missed any important points before. But after thinking about it for a long time, he finally didnt think of it, so he could only continue nervously: "But I remember that the data in that article was actually very problematic. Although the author used clever drawing and processing methods to cover up some of it, the problem was clearly visible. He used a very small size in his study. The scaled-down version of the turbine blades does not take into account the amplification effect, but it is obvious from the data trend that if the blades are enlarged to the level of a normal aircraft turbofan engine, then the cooling effect at the rear end of the blades should be less Im optimistic, and besides and if this research is really meaningful, Im afraid too "Um" Chang Haonan actually heard Liu Yongquan''s thoughts completely, but because he was still preoccupied with debugging the equipment, he couldn''t organize a complete sentence in his mind. It happened that what he was going to say later was more complicated, so he had to hum first. Show that you heard it. ?However, this reaction made Liu Yongquan break out in a cold sweat, and the feeling of dj vu became even stronger when he was back in graduate school. "Um?" Chang Haonan finally finished the work at hand. He wiped the sweat from his palms on his lab coat. Then he turned around and saw Liu Yongquan, who looked like a student being scolded: You want to say that if that research is really meaningful, it wouldnt be so easy to publish, right? ? ? In fact, all countries are similar when it comes to keeping the most critical core technical details confidential. ?Taking the matter of air film hole cooling as an example, since the related concept was proposed in the late 1970s, for nearly 20 years, the entire industry has been unable to find a single valuable research article. Not to mention the review. This led to the fact that when the Turbojet 14 was developed that year, the Chinese aviation development researchers, who had to use film cooling due to the excessively high temperature in front of the turbine, could only collect some scraps from some Russian phrases. In the end, although the Turbojet was A 14-inch turbine was built, but the cooling effect was always somewhat unsatisfactory. Fortunately, the second-generation domestic nickel-based high-temperature alloy was later used, which ensured the most basic reliability and service life at a certain cost. Otherwise, Chang Haonan would have had to modify the turbine in addition to the compressor. . That cannot be completed in a few months. "yes." Hearing that Chang Haonans rhetorical question was similar to his own, Liu Yongquan finally relaxed a little: "Although the MIT article did make some breakthroughs in theory, it is still far away from practical application. Judging from some reports, the main direction of foreign research now should still be the impact cooling of slot jets and formed hole jets. The combination of air film cooling may be the reason why this article was finally released. Wrong. ?Chang Haonan waved his hand directly, then walked to the side and took off his lab coat. "This...this...Mr. Chang, what''s wrong with my idea...?" Liu Yongquan''s heart was hanging again. No, Liu Gong, your idea is fine. Chang Haonan said as he took out an English material from the bag next to him, which was obviously the paper the two of them just talked about. The number of papers studying blade cooling these days is extremely rare, so any one will be studied carefully in China. Since online databases are not yet popular, various research institutions even have dedicated data clerks responsible for collecting content that is actually public. The paper in his hand was brought over by the data clerk of the Taihang project team a few days ago. In fact, Chang Haonan certainly does not need the inspiration from this article, but suddenly from fluid mechanics research to gas-heat coupling issues, he still has to find an excuse. He handed the paper to Liu Yongquan: Its MIT who have the wrong idea. "ah?" Liu Yongquan, who had just turned the paper to the second page, was immediately stunned. Let alone the late 1990s, even more than 20 years later, MIT still has a bit of sanctity in science and engineering disciplines. Even though Liu Yongquan thinks that he is no longer superstitious about foreign authorities, he just said that the research in this paper is biased towards the gas-heat coupling theory and has little practical significance for engineering applications. "Now foreign countries are pinning their hopes on the slot jet, which is nothing more than the weak three-dimensional flow characteristics of the slot jet. The assumptions between the front and rear jets basically meet the Sellers superposition model, so the prediction of the effectiveness of the adiabatic air film The accuracy is higher, and because the discrete air film hole has a three-dimensional vortex structure, and the cooling jet of the same exhaust film hole has discrete characteristics, multiple exhaust flows interfere with each other, and it is completely impossible to predict using the Sellers superposition model... Just being lazy. ??Although Chang Haonan''s hands were empty, he had basically memorized the details of the article in his mind. When he said this, he immediately pointed to the paper in Liu Yongquan''s hand: Look at Tables 3-4 to 3-7 in this article. "oh" Liu Yongquan turned to the third chapter of the paper a little hurriedly. "If you extract the strength of the vortex structure from several tables and calculate the Reynolds number, you will find that the turbulent boundary layer can enhance energy transport compared to the laminar boundary layer, thereby effectively reducing the strength of the vortex structure. In addition, their The research methods include using pressure-sensitive paint to measure the effectiveness of the insulating film for composite angular film cooling of differential arrays, and using thermotropic liquid crystal polymers to visually measure temperature. These methods are indeed quite advanced. " After a comprehensive evaluation, Chang Haonan finally concluded: In general, they are actually very close to the right direction in this article, but they didnt think in that direction at all when processing the data. So MIT doesnt even know its got a baby? ?Although Liu Yongquan still didn''t fully understand Chang Haonan''s technical ideas, he still understood this part of the content. "Yes, but they will not go on this wrong route for too long. The problem of slot jet is too big, and the higher the performance requirements of the aircraft engine, the more obvious the defects will be. For the United States, which is already installing and testing the fourth-generation engine It doesnt take long for people to discover this. Chang Haonan walked back to the newly debugged equipment and patted the casing gently: "Theoretically speaking, third-generation engines such as the Turbofan 10 cannot actually use such high-end cooling technology. The third-generation nickel-based blade material and combined with traditional cooling technology are enough. F110 and AL31F are both Thats how it works. "But I am still planning to apply multiple rows of superimposed full-coverage film cooling on it. Taking the film cooling effect of the turbine end wall, blade top, trailing edge, and even the annular combustion chamber side wall into consideration as a whole, the cooling effect will be better. At the same time, it can also reduce the consumption of cooling air flow, which can be regarded as laying a technical foundation for future fourth-generation and even fifth-generation engines. The fifth generation engine? ??If another person had said that they were preparing for a fifth-generation engine when they didnt know anything about Turbofan 10, Liu Yongquan would have thought that the other person was crazy. But when Chang Haonan said these words, he just felt... It doesnt seem that exaggerated. (End of this chapter) Chapter 471 The key to the next generation of aviation Chapter 471 The key to the next generation of aviation development A fifth-generation engine is certainly not possible at the moment. The third generation is models such as F110 and AL31F with a push ratio of about 8. The fourth generation is models such as F119, F135, and AL51F with a push ratio of more than 10. ??If the Turbofan 10 is built according to Chang Haonan''s ideas, it will probably skip the third generation of fundamentalism and directly enter the category of three and a half generations. Of course, there are actually many differences between the third-generation and fourth-generation engines. It can be said that there are differences in the original design ideas, manufacturing processes, and material selection. ?The thrust-to-weight ratio is just the most intuitive data that is ultimately reflected in performance. Of course, there is also a third and a half generation in between, that is, the later models of F110, F414, and AL41F are basically third-generation engines, but they have applied some fourth-generation engine technologies, resulting in performance that is significantly higher than the upgraded versions of their predecessors. . It is worth mentioning that the fourth-generation engine is no different from the third-generation engine in its most basic principles, so there is still a performance trade-off that is physically unavoidablehigh-speed-oriented models generally have astonishing fuel consumption, while low-speed-oriented models The supersonic performance of the model will be extremely stretched (see Chapter 415 for detailed explanation). ? It is precisely to resolve this contradiction that the adaptive variable cycle mode is generally introduced in the conceptual design of fifth-generation engines in various countries. At low speeds, it can be a fuel-saving medium-bypass ratio turbofan engine, and at high speeds, it can even be transformed into a high-performance turbojet engine. Therefore, although the fifth-generation engine may not be able to achieve such a terrifying leap from 8 to 10 on paper data, it may even be due to the addition of a variable circulation device, causing the sea level thrust-to-weight ratio to fall instead of rising (the dead weight becomes larger) , the thrust has not increased that much), but the actual performance installed on the aircraft will far exceed that of the fourth generation. ?Its just that although the idea of ??variable loop is simple, if you really want to implement it, there are still too many details to be perfected. Even until the time before Chang Haonan was reborn, no one had yet determined which cycle-changing technology path was more feasible. If nothing else, the specific design concept of the compressor will undergo an almost earth-shaking change. So after briefly chatting about the future planning of domestic engine models, Chang Haonan and Liu Yongquan returned to the research at hand. Multiple rows of superimposed full-coverage air film cooling Liu Yongquan repeated this somewhat awkward term. Thats right. Chang Haonan took Liu Yongquan to the experimental table next to him. A laptop was placed on it, and an isotherm curve was displayed on the screen: I originally thought that the current TORC Multiphysics software could directly complete the gas-thermal coupling simulation, but when I actually operated it, I found that I still thought the situation was too simple. ??As he spoke, he circled a part of the graph with the brush tool: "You see, after the main stream comes into contact with the high-momentum cooling jet, a pair of vortex structures with opposite rotation directions will be generated on both sides of the downstream area of ??the jet. This will play a role in gathering the wall cooling air to suppress lateral diffusion in the direction of rotation of the vortex structure. , and it also has a tendency to lift the cooling air away from the wall. "so" Liu Yongquan still understands this picture: So the greater the blowing ratio (the momentum of the cooling air flow), the harder it is for the mainstream to suppress the cooling jet, and the earlier the cooling air will leave the solid wall surface, resulting in worse cooling effect downstream? Chang Haonan nodded, saying that he was indeed the person who really brought Turbofan 10 to maturity in the original timeline. Although he is currently a little inexperienced except for the big hair style, his basic skills are indeed good. He just watched After just a few glances, I quickly grasped the key conclusion: "That''s right, so if you comprehensively consider the gas-heat coupling effect of the entire engine, you will find that if you blindly increase the amount of cooling gas, the improvement in cooling effect will become less obvious as time goes by, and it will soon hit an upper limit. And because the airflow loss is too large, it will also affect the performance of the engine itself and even its working stability. This is impossible to discover if we only study the film cooling effect on the blades without taking the overall engineering considerations into account. I speculate that this should be one of the reasons why the Americans are currently taking a detour. " After his judgment was confirmed by Chang Haonan, Liu Yongquan almost subconsciously thought of the most direct way: If we enlarge the diameter of the air film hole, we can reduce the air flow rate while keeping the cooling air consumption unchanged, and improve..." But he quickly denied it himself: No, simply increasing the pore size of the air film will lead to greater pressure loss, which is not worth the gain Mr. Chang, if the cooling holes are changed from cylindrical to tapered, so that the inlet area is small and the outlet area is large, wouldnt it be possible to improve the coverage of the airflow on the blade surface? ?At this time, Chang Haonan did look at him with admiration. The cooling effect of special-shaped holes is better than that of round holes. This will be something that any undergraduate majoring in the relevant field will know in 20 years. However, at present, the research on this aspect in China is still blank. In the previous life, it was not until more than a year later that Rolls-Royce went to Northwestern Polytechnical University to sponsor a research project related to active cooling that China became aware of this. ?Engineering things are sometimes like a layer of window paper that has been pierced, and it looks like that. But if there is no one to guide it, it will take a lot of time just to find where the window is. Liu Yongquan, at least in a short period of time, found the right direction. The idea is correct, but it can go further. ?Chang Haonan took a pen and paper from the side and drew a schematic diagram on the paper: In fact, there is no need to make major changes to the cooling hole itself. It is enough to connect an expansion section to the outlet part, that is, the end of the hole, so that the pressure loss is smaller, and the flow rate at the exit of the air film hole can be greatly reduced. " Reducing the flow rate means reducing the momentum, the cooling air will hardly blow away, and the wall attachment effect is better. "Moreover, the interaction between the mainstream and the cooling air is weak, and the kidney-shaped vortices on both sides of the jet are weak. The meridional area will form an anti-kidney-shaped vortex pair structure, which also enhances the lateral diffusion of the cooling air. It can make the cooling air film more even! "That" Liu Yongquan only had a feeling of enlightenment at this time. The solution to the whole problem seemed as simple as 1+1: "Then we just need to change the round hole into this...this kind of special-shaped hole?" "Of course it can''t be that simple. What I just said is just the basic principles." Chang Haonan put the pen aside, waved his hand and replied: The air film formed by the special-shaped holes not only improves the effectiveness downstream of the hole, but also increases the heat transfer coefficient of this part, so the cooling effect on the solid wall area with a low heat transfer coefficient is relatively poor. "Furthermore, this awkward opening method will definitely affect the structural strength of the workpiece. We are building an aerospace engine, which has requirements for overload. Moreover, the environment of high temperature, high centrifugal force, and strong airflow impact itself is also a problem for the structural reliability. test." So, what kind of hole shape should be used, how to design the distribution of air film holes on the surface of the workpiece, and how to design the angle of the hole channelnot only the pitch angle, but also the lateral angle. These are all issues and must be made." "That''s why I have to order a piece of equipment. On the one hand, it is to study specific air film cooling solutions. On the other hand, it is also to accumulate some data for the next major version of the TORCMultiphysics software. The air-thermal coupling is different from the simple force There is still a big difference in thermal coupling, and Im afraid a new functional module is needed to do it well. Even Chang Haonan is not really omniscient and omnipotent. He has tried using his own software before, but there are too few theories and data in this area. What about the simulation results... It can only be said to have certain reference value. Then Mr. Chang, shall I design the experimental plan? Liu Yongquan behind him is already eager to try. Actually, Ive already designed it ?Chang Haonan glanced at the brand-new experimental equipment not far away. Ah this Liu Yongquan scratched the hairless head of his head with some embarrassment. But Chang Haonan changed the subject again: But you can also try it first, and then compare it with what I gave you after the plan is made. Liu Yongquans eyes lit up, and he suddenly felt that he could do it again: So...about the turbine parts sample for testing, or should we just use the turbofan 9? Yes, if you dont have the design data of Turbofan 9, you can directly ask the 430 factory for it. Under the operation of Chang Haonan, Turbofan 9 has now basically become the technical verification model of Turbofan 10. ?Although the temperature in front of the turbine of the former is unlikely to reach the level of 1200-1250, the cooling effect is definitely not too high. Especially if there is no need to change the blade material. ?Of course, its not just the 430 factory. ??The Spey MK202 is actually just an engine with a thrust-to-weight ratio of level 5. Its indicators other than fuel consumption are not even as good as those of many last-generation turbojet engines. Some of the technologies tested by Turbofan 9 can always be used back in mass-produced models. On the premise that the cost and overall structure remain basically unchanged, the performance will definitely be improved. (End of this chapter) Chapter 472 battle of routes Chapter 472: Route dispute Meanwhile, across the ocean, in the Boston metropolitan area of ??Massachusetts. ??In a large laboratory at the Massachusetts Institute of Technology, newly-minted professor Matthews Blade and several right-hand assistants are gathered around a single-stage turbine testing machine, preparing to start a new round of experiments. ?This brand-new equipment is the MT1 test platform they purchased directly from their colleagues at Oxford University. It can completely test the entire combustion chamber-turbine structure, instead of just studying the condition of a single blade. In fact, this kind of international collaboration is the greatest advantage of Western countries in the industrial field. As the leader of the entire group, the United States does not need to own key technologies in every field. As long as it can complete the international division of labor and resource integration, it can naturally obtain the best quality resources. Of course, the cost of this is that technology research and development and engineering practice will gradually become disconnected. After all, technical data can be saved, but engineering experience cannot. After experienced engineers retire, if a new generation of successors is not left in advance, the ability in this area will disappear rapidly. ?Of course, in the current 1990s, Americans who have just won the Cold War do not think this is such a big problem. Regina, its almost time to prepare. Go and set the experimental parameters. Brock, bring the samples for testing and get ready to start testing. ??Brad shouted to the two graduate students standing on the other side of the device. ??Regina stretched out her arm and gave him an OK gesture. ??Block took out several large turbine disks from a packaging box, and with the help of two other people, installed the one numbered 1 in the test position. This equipment is different from the one Chang Haonan ordered from 410. It uses an electric heating method that is easier to control and safer, instead of burning atomized aviation fuel to generate hot airflow, so there is no need to Clear the venue of all personnel. As long as you stay at a safe distance. A few minutes later, the three green lights on the console lit up, indicating that the entire experimental process just set was ready to begin. Although the device itself still needs some time to heat up, this can be done fully automatically after setting. And the data is also read and recorded online in real time. MIT''s laboratory is absolutely top-notch in terms of hardware. Compared with the Chinese lab, it''s like two different worlds. Not counting other auxiliary equipment, the MT1 test platform in the middle of the laboratory alone is worth nearly one million US dollars. ?But thats not important. As a research group sponsored by General Electric, Professor Brad is not short of this "little money". After losing to its main competitor Pratt & Whitney in selecting two fourth-generation engines, General Motors quickly set its sights on the fifth-generation engines for the Next-Generation Air Superiority Fighter (NGAD). ?This research is part of a project sponsored by General Electric. ?In terms of fourth-generation aero engines, both Pratt & Whitney and General Motors can still achieve great success through materials science and traditional second-generation active cooling technology. But this is already the limit. Future fifth-generation engines will require brand-new cooling technology anyway. So, money is not the focus, the key is that he needs to produce results as soon as possible. "Regina, remember to focus on the migration of the ''hot spot'' at the turbine entrance, especially the difference between the No. 2 experimental group and the No. 1 control group. You don''t have to wait until the entire experiment is completed, as long as the results come out, Just send it to my office first. Professor Brad is not impatient, but the corporate representative sent by General Motors is standing next to him, so he can''t continue to take his time. This is the same as social animals. If your boss sees you fishing once, he will doubt whether you have been fishing all the time. ?Now that Party As father is here, he must show a sense of urgency. "Professor Brad, we saw that your research group published a paper last month titled "Research on Flow and Heat Transfer Characteristics of Air Film Cooling Structures." The sample you are testing now is also based on what was mentioned in the paper. Cooling jet superposition technology? ? GM representative Andrew Goldstein asked as he looked at the roaring experimental equipment in front of him. ?Although he is the person responsible for project management, he also studied thermodynamics in his early years, so he is not completely ignorant of technical issues. How is it possible Brad glanced at Goldstein next to him. ?He concealed the disdain in his eyes very well: The cooling jet superimposed on small and micro gas turbines has a good effect, but if it is enlarged to this size, the superimposed effect cannot reach the level mentioned in the paper, and it is impossible to solve the heat caused by uneven working fluid parameters at the turbine inlet. agglomeration problem. So that article Goldstein only went to work after his undergraduate degree and was not very clear about these things in scientific research. Its just scraps of some research results. My students will eventually graduate. Brad replied nonchalantly. Perhaps because he felt that his attitude towards the representatives sent by the sponsor was a bit harsh, he continued to explain: "The turbine structure that is being tested now uses laminate cooling that combines film cooling and impact cooling. We have previously predicted the heat accumulation, which is the ''hot spot'' I just mentioned, through numerical calculations. Migration rules throughout the turbine channel. "In this way, multi-row slit jets can be used for impact cooling in a targeted manner on its migration path to enhance the cooling effect, while film cooling can continue to be used at other locations to reduce unnecessary pressure loss. What is the final result... " At this point, Brad paused. ? He ??has actually calculated a rough number through a computer, but the real test results will come out soon, and the latter is obviously more convincing. Well know when the test results come out. In short, it will be a revolutionary improvement compared to traditional methods. After Brad finished speaking, he straightened his lab coat with great satisfaction and put his hands in his pockets. In the past, due to the existence of hot spots, the cooling of the entire turbine section had to be redundantly designed according to the temperature there, which wasted a lot of cooling power. My new technology can solve this problem and maximize the cooling power where it should be used. ?This explanation is so down-to-earth that even Goldstein can understand it. Professor Brad, if someone reads the paper you published, will they go in the wrong research direction? While talking, the two of them walked towards the office next to them one after another. Its possible. ??Brad stopped at the door of the office, turned his head and looked at Goldstein again: But if that were the case, wouldnt it be better? (End of this chapter) Chapter 473 MIT opens champagne at halftime Chapter 473: MIT opens champagne at halftime ?After hearing Brad''s answer, Goldstein was stunned for a moment, and then showed a knowing smile. Obviously, these academic guys are no different from those in business. A paper with a high impact factor may also mislead potential opponents in their research and development directions. Its a win. A win-win situation means I want to win twice. Can the progress be accelerated further? Now that Brad has determined the correct research direction, Goldstein, as a representative of the company and Party A, is naturally more concerned about when the results can be produced. Although the NGAD project has not yet been announced, and the supporting fifth-generation aeroengine does not even have specific technical parameter requirements, the relevant technology can be applied to the next-generation civil aeroengine that General Electric is promoting. Better cooling performance means higher turbine front temperature, and higher turbine front temperature can not only increase thrust intuitively, but also reduce fuel consumption while keeping thrust unchanged - because under the same power, compressed air is needed. The machine does less work and consumes less fuel. For passenger planes, this is a sure win. You must know that Airbus is advancing their A3XX super-large passenger aircraft plan to compete with the Boeing 747, and General Electric is currently ambitious and is preparing to compete with Rolls-Royce in engine selection. It is expected that at least 300 of this super passenger aircraft will be produced. Considering that the engine will need to be replaced several times during its entire life, it will be a huge market of 3,000-4,000 units. You must know that this is not a gadget like the CFM56. The A3XX needs at least a large bypass ratio turbofan with a thrust of 35-40 tons, and each one is incredibly profitable. More importantly, after losing to Pratt & Whitney in the selection of two fourth-generation military engines, although the F119 and F135 actually have quite a few parts produced by General Electric, they did not suffer any loss in revenue. , but the companys stock price has been running at a low level. This is definitely not good news for the management team. ?Of course, General Electric has a big business and will not rush to replace people in a short period of time. ?However, at least in the next few years, the company still needs a landmark victory to boost market confidence. And a project that attracts worldwide attention like A3XX is obviously a good opportunity. Is this... Brad hesitated for a moment: According to my experience, research work is about maintaining a stable work rhythm. If you blindly increase the workload to promote research and development progress, it is likely to be counterproductive in the end. ?Just when Goldstein nodded and was about to let the topic go, the other party suddenly added something. So...you have to pay more! I need to recruit more intern researchers, more experimental samples, and supercomputer computing resources! "have to" Good guy, it turns out I need money. ?However, for such a project of great importance and bright prospects, General Electric, which has deep pockets, is indeed not short of those few million dollars. ?Seeing Brad who was so motivated and confident, Goldstein also felt a little open about the future, and immediately assured the former: Okay, I will apply to the higher-ups when I get back, and GE will do its best to support your research! Thank you, its an honor to work with such a great (money) company like General Electric! The new equipment of Brad''s research team is indeed not in vain. Although the heating speed of electric heating is not as good as the traditional method of direct fuel injection and ignition, the temperature control accuracy far exceeds the latter. The probability of obtaining valid experimental data has increased from What used to be less than 20% soared directly to nearly 100%. Not to mention advanced fully digital monitoring and recording equipment, which can simplify experimental operations to no more than five steps, greatly liberating manpower and reducing many problems caused by human errors. Therefore, before Brad and Goldstein finished their second cup of coffee, Regina, the female graduate student assigned by the former to conduct the experimental operation, knocked on the door and walked in. ??Also holding a floppy disk in his hand. Professor, the part of the data you want has been released, and its all in here. Brad put down the half-drunk coffee, took the floppy disk, and inserted it into the floppy drive. Within a few minutes, a black and white temperature distribution map was displayed on the computer screen. ??Regina did not leave the office just like that, but introduced to the screen: "The hot spots on the leading edge of the high-pressure turbine guide vanes will gradually migrate to the outside as the thrust increases. The migration path is slightly different from our previous predictions, but the overall pattern is consistent. In the control group using impingement cooling, the hot spots Although the blocks are still there, the temperature has dropped a lot compared to the control group. Professor Brads research group is not small in size, and the competition pressure is even greater. She will certainly seize such an opportunity to perform. "The current problem is that after jet cooling is applied, the tip portion of the turbine blades will accumulate more heat than in the past. It is difficult to arrange jet slits at this location. The effect of film cooling alone is also average, and the temperature does not exceed the maximum temperature. limit." "This is not a big problem. The tip area has always been the most difficult area to deal with on turbine blades. The change in the position of the hot spot also requires further testing. It is already very good that the first test can achieve such obvious results. , at least it proves that our idea of ??using shock cooling to focus on strengthening is correct! Looking at the pictures in front of him, Brad was obviously in a good mood. The numerical analysis results are inaccurate. Is it a big problem? It is just to provide a reference. ?There is no way anyone can really calculate it and it is basically close to the actual situation, right? No way? The corners of Brad''s mouth curved into a smile of joy. This means that his research group has reached the forefront of the world not only in compressor design, but also in turbine design. ?Even surpassed Oxford University, which provided this MT1 test platform. After processing the experimental data and handling the equipment, we will organize a small banquet in the evening to welcome Mr. Goldstein! It should be said that Brad is quite capable. He is able to take into account the complex non-uniform factors at the turbine inlet without relying on experiments, and use impact cooling to deal with them in a targeted manner. He is definitely a hero in the field of aerospace research. The only fly in the ointment is that his calculations were completed before getting the MT1 platform, so the research object has always been individual turbine blades. ?Of course this is not Brad''s problem. At the level of supercomputing in the late 1990s, relying on normal calculation methods, it was indeed impossible to conduct gas-heat coupling modeling of the hot end of the entire aeroengine. But if he had heard Chang Haonans evaluation of the leftovers article, he would have realized that impact cooling has its limits. The inconvenient practice of adding cooling slots to all hot areas will be very ineffective near the segment wall. Hence, it is not a trivial matter that heat accumulates in the tip portion of turbine blades. Especially in a real aero engine. Since the combustion chamber and turbine structure are surrounded by the casing, the overall heat dissipation conditions are actually worse than on the experimental bench. ? And the high-temperature airflow sent out by the combustion of aviation fuel in the combustion chamber is ultimately not as stable as electric heating... (End of this chapter) Chapter 474 "Taihang" engine design review meeting (thousands of days per day) Chapter 474 "Taihang" Engine Design Review Meeting (10,000 per day) Chang Haonan, who is far away in China, certainly has no idea that his colleagues at MIT have gone further and further down the wrong path due to a moment of negligence and many coincidences. In fact, he originally thought that the other party would soon realize that something was wrong. I can only say that it is still overestimated after all. For Chang Haonan, after helping Liu Yongquan get the film cooling test on track and obtaining some of the most basic data, the overall design plan of the turbofan 10 should be finalized. Although the previous plan was to design and manufacture two legs to walk at the same time, there was still a question of whether to step the left foot first or the right foot first. Mr. Qian once summed up a very important core point of view in "Systems Engineering Theory". To make any technical product, we must start from the existing conditions. We do not need to insist on the advancement of individual technologies, but we must ensure the rationality of the overall design. . ??Although Chang Haonan has taken over the Turbofan 10 project for several months and the progress has been progressing by leaps and bounds, strictly speaking, most of his previous work still belongs to the category of "pre-research". If the overall technical route is not determined, the research and development work of all subsystems will not be carried out. So, this is definitely the top priority of the entire project. ??It is also a process that he hopes to expose Chinas aerospace development researchers to. ?In addition, such a big matter cannot be decided by Chang Haonan alone, or by gathering together a few core members of the 606 Institute like the first time. Although allowing a young man to serve as the chief designer of a key aircraft engine model already reflects the organization''s high degree of recognition and trust in him, trust is trust, and things that should be done according to the rules cannot be omitted. To officially transfer from pre-research to model development, the design review meeting must still be held. Of course, with Chang Haonans current reputation in the aviation industry system and even the entire military industry system, there will definitely be no shortage of small privileges. For example, under normal circumstances, the Commission of Science, Technology and Industry for National Defense and the General Armament Department decide how, where and when the review meeting will be held. Even in order to save time and resources, some non-key models are packaged according to categories. Focus on the review again. But for Chang Haonan, he only needs to prepare relevant information and call Ding Gaoheng to decide these details by himself. ?Of course, the comrades from the general offices of the two ministries and commissions are responsible for the organization of the conference, so he does not need to worry about it. The main research and development units of turbofan 10 are 606 Research Institute and 410 Factory. This meeting was naturally held in Shengjing. However, due to Chang Haonan''s request, in addition to the experts and leaders who participated in the review, as well as the main responsible comrades of the turbofan 10 research and development team, there were also many comrades involved in the research and development. As a result, the original planned venue, namely 606 conference halls, seems a bit stretched. Finally, under the personal coordination of Cao Gangchun, the director of the General Armament Department, they borrowed the opportunity to use the official auditorium of the Shengjing Military Region. Old building, but the advantage is that the place is large enough. ??More importantly, it is very close to the government guest house of the Shengjing Military Region A design review of this scale will definitely not be completed in one day. Local researchers can go home to their dormitories, but participants from other places must find accommodation. ?The night before, Chang Haonan brought relevant design materials and arrived at the venue in his Jetta King. As a large military region at the corps level, the Shengjing Military Region garrison is an important military area that no one can enter. Even if Chang Haonan and others come from military industrial units that are closely related to the army, they are still non-military local personnel. ?Hence, I waited at the door for a while and then I saw a camouflage-painted Mitsubishi off-road vehicle driving out of the courtyard. A lieutenant colonel with the rank of 20,000 men got out of the car. The latter spoke a few words to the sentry, and then motioned to the convoy outside to follow. The group of people finally entered the military compound safely. I think the security of our military industrial units must be upgraded according to this standard in the future. Chang Haonan turned around and glanced at the sentry who had just finished saluting at the door, and said half-jokingly. ?Zhu Yadan, who was driving, curled his lips: Chief, its not that I look down on the comrades in the local security department, but if nothing else, it would be difficult for them to stand guard outside 24 hours a day Shengjing also assigned a full-time driver to this car at first, but this would occupy an extra position. ?Furthermore, according to Zhu Yadan, drivers who have not received special training will only operate randomly once they encounter an emergency, which may lead to accidents. The steering wheel is still in your own hands. So within a few days, the other party was invited to leave by her. Of course Chang Haonan also knew that what Zhu Yadan said was the truth: What a good wish...and having said that, with the gradual improvement of our countrys scientific research level, we really need to pay attention to this aspect. "I think... as long as we protect you, other places are not so anxious." ?While working as a driver and bodyguard with Chang Haonan, Zhu Yadan finally experienced what it meant to be a "white jade pillar holding up the sky, and a purple golden beam bridging the sea." She estimated that at least 70% to 80% of the new technologies and equipment she had heard of in the past two years were directly or indirectly related to Chang Haonan. "Not to the extent, not to the extent." ?Chang Haonan quickly waved his hand: Although I did play a role in some key positions, the results are always achieved by all comrades..." While the two were talking, the motorcade had already stopped at the entrance of the government auditorium. What surprised Chang Haonan was that the people waiting here to greet them seemed to be...a bit high-level. He lowered his head to check what he was wearing, and then got out of the car. The officer led by the officer came forward, but when he saw Chang Haonan''s face clearly, he was obviously stunned for a moment. But after all, he was a seasoned veteran, so he quickly adjusted himself and shook hands with Chang Haonan: Are you Comrade Chang Haonan? I am Commander Li Liangxin. On behalf of all the comrades in the military region, I welcome the comrades from the military industry system! At a time when the Internet was not very popular, people''s appearance could only be transmitted by word of mouth. The biggest characteristic of Chang Haonan, apart from being handsome, is naturally his youth. So Li Liangxin, who had received a call from Cao Gangchun in advance, was actually mentally prepared. I knew I was young, but I didnt expect to be this young... ?This enthusiastic opening speech was completely beyond the expectations of Chang Haonan, who had just got off the car. You are too kind, too kind Chang Haonan, a general of the same military rank, has seen a few of them before, but this is the first time he has met one who looks like this. Hey, youre welcome, youre welcome, my old friend Deputy Commander Zheng wanted to fly back from Anshan when he heard that you were coming for a meeting, so I stopped him..." As he spoke, he led Chang Haonan up the steps outside the auditorium, and then he remembered to explain further: Oh, Deputy Commander Zheng is the deputy commander of our Shengjing Military Region and the commander of the Military Region Air Force. Zheng Shenxia has the same surname as Commander Zheng Liangqun, whom you should know, but they are not from the same family. ?Now Chang Haonan finally understood the crux of the matter. It was the troops of the Shengjing Military Region who achieved the first air combat results of the Chinese Air Force in 30 years. ??Although this incident has not been publicly publicized even within the People''s Liberation Army so far, it has given Li Liangxin a big face anyway. ? And Chang Haonan made significant contributions to the two main combat equipment of aircraft and missiles participating in the war, so it is normal for him to be loved by the opponent. Military-civilian alliance and mutual promotion are all efforts for the modernization of national defense..." ?Although the former himself feels very happy about this, he still has to be polite. The review meeting is scheduled to be held tomorrow morning, so except for a few leaders who really cant get away, most of the participating experts have chosen to arrive one day in advance. Therefore, when Chang Haonan prepared the materials needed for the next day''s report in the main conference hall and was taken to the canteen of the agency guest house, he saw many familiar faces. Xiao Chang, this review committee of yours caught me off guard. ?Du Yishan walked up to Chang Haonan with a half glass of beer and patted him heavily on the shoulder twice. Although he is nominally Chang Haonans doctoral supervisor, even Mr. Tianwang cannot know the research progress of the turbofan 10 engine in real time without the authority. So for Du Yishan, almost without warning, he suddenly learned that his student had done a shocking job. Who would have thought that within three months of taking over the project, he would have finalized the overall design plan. Of course, Du Yishan, as an expert in the field of aircraft design and Chang Haonans mentor, does not serve as a member of the review panel, either from a professional perspective or from the perspective of avoiding suspicion. The person who is actually responsible for the technical appraisal of this review is Liu Zhenxiang who is standing next to him. ?But I can be considered an acquaintance with Chang Haonan. Xiao Chang, this is my third design review for Turbofan 10. Im afraid its unprecedented, right? Liu Zhenxiang also clinked glasses with Chang Haonan and said in a slightly funny tone. The third time? Even Du Yishan, let alone Chang Haonan, is not very clear about this matter. Yes, shortly after the Turbofan 10 project was established ten years ago, there was a design review, but at that time we couldnt even copy other peoples engines, so naturally we failed in the end. "Later between 1993 and 1994, they used a new plan to drive it for the second time. They came up with a design of a CFM56 core engine. Looking back now, it is basically similar to the F110 engine. There is no problem with the design, but there are many technical issues. We simply couldnt meet the details, so we let it go. The third time? Its now. ?Chang Haonan said in his heart, "Good guy, I know that the turbofan 10 is ups and downs, but I never thought it would be so ups and downs." But this time, with our Comrade Xiao Chang here, I still hold an optimistic attitude, otherwise, nothing will come... Liu Zhenxiang picked up the cup, drank the remaining wine in one gulp, and waved his hands at the same time. Dont worry, Academician Liu, this time will definitely be the last design review. Chang Haonan said in a deep voice. So confident? Liu Zhenxiang and Du Yishan looked at each other and smiled in unison. Well...the several key technologies that have been solved are going quite smoothly, and they are in line with the design plan, and there will be no major problems! (End of this chapter) Chapter 475 2711 engine structure Chapter 475 2-7-1-1 Engine Structure Generally speaking, small meetings are held for big things and big meetings are held for small things. ?But this time, it was a big meeting. As the heart shared by two domestically produced third-generation main fighter jets, and possibly the power source for future naval main battleships, the importance of the turbofan 10 engine in Chinas equipment sequence goes without saying. As the first aerospace engine model in China that is completely self-developed starting from the core aircraft, Turbofan 10 is also of great importance to the aviation industry system. ?Taken together, the level of this judging panel made Chang Haonan himself, who was standing on the stage, feel that it was a bit exaggerated. In addition to leaders and experts from the Science and Technology Commission and the General Armament Department, there are even higher-level figures in charge of science and technology participating. For a project in the field of aviation power, this is definitely an unprecedented first. In the past, only key main battle equipment could enjoy the same level of treatment. In the eyes of most people, this probably just reflects the importance attached to the turbofan 10 by superiors. But Chang Haonan knew more things after all. ?About two and a half months ago, the reform plan for the Aviation Industry Corporation submitted by him, Du Yishan, and Liu Zhenxiang involved splitting it into two group companies: Aviation Industry and Aviation Power. Todays super-standard treatment, if you think about it further, seems to be regarded as the superiors emphasis on the entire aviation power system... In other words, Chang Haonans performance today is likely to affect the future development direction of the entire industry. It is absolutely impossible to say that there is no pressure at all. ?However, when the soldiers come to cover up the water and the earth, everyone is already here, and the review meeting will have to continue regardless of who comes. Furthermore, Chang Haonan believes that it is impossible to find anyone in China who understands turbofan engine design methods better than him. Confidence comes from professionalism. Offsite, conference staff have begun to distribute paper technical materials to all attendees. ?Of course, those who are sitting in the back and listening will not get a share. Fortunately, these people themselves are also R&D personnel participating in the Turbofan 10 project, and they are participating in an exceptional manner, so they can learn a lot. In fact, according to the design review regulations, the review notice and necessary review materials should generally be sent to the review team members 3-5 days in advance to facilitate prior review by the review team members. However, this notice conflicts with the confidentiality regulations in the military industry system. It is okay for ordinary projects. After all, the people who can participate in the review are not ordinary people. However, the more important and confidential the key projects are, the more difficult it is to obtain information. It was sent out in advance, so most experts only saw these materials for the first time when they arrived at the scene. From a review perspective, this is of course problematic ??This time it is Chang Haonan who is in charge of the project. These details may not be important, but it may not be so if it is someone else next time. ?However, it is not without its benefits. That is to say, the effect of the program is absolutely full. Because, everyone present, at least everyone who knew technology, after getting the information and turning the first page, they all made a dumbfounded expression of surprise. Since the information was distributed in order of seating, to Chang Haonan on the stage, it looked like a wave below. The expressions of the big bosses changed gradually from curiosity to shock following the footsteps of the two field staff... Especially a gray-haired middle-aged man sitting on the left side of the center of the expert seat. He was still leaning on the back of the chair in a relaxed state. However, after seeing the structural diagram of the turbofan 10 printed on the first page, he immediately became agitated. Vibrating, as if there were springs on the backrest, the whole person sat up straight in an instant. ?He quickly picked up the ballpoint pen that was distributed with the information and counted it several times on the paper, muttering numbers like one, two, three, and four in his mouth. Level 9Level 9? After being stunned for a while, he turned around and whispered to Liu Zhenxiang, who was sitting in the middle of the expert table next to him: Academician Liu, have you given the technical information of R79 to Institute 606 for reference before? Liu Zhenxiang is naturally one of the very few reviewers who has seen the design plan in advance, so this effort is quite stable. Just a few days ago, when he took out this information from the confidential document bag for the first time, his expression was not much different from that of his current colleagues. ?So just by looking at the expression of the person next to him, and combined with this somewhat nonsensical question, Liu Zhenxiang knew what the other person was thinking. "Lao Jiang, take a closer look. Although the total levels are all 9, the R79 is 3-6-1-1, and this one is 2-7-1-1. The core machines are different (the core The machine only includes the high-pressure compressor, combustion chamber and turbine, the fan/low-pressure compressor is not included). ? Jiang Fuhe, the chief designer of the Gas Turbine Research Institute (624 Institute), presided over the design and development of the entire turbojet 13 engine model spectrum, and made a huge contribution to maintaining the basic combat effectiveness of the Chinese Air Force between the 1980s and 1990s. Of course, in today''s timeline, due to the branch of the Turbojet 14, newer aircraft no longer require the Turbojet 7/13 as power. According to my country''s practice of equipping one generation, developing one generation, and pre-researching one generation, now that the turbojet 14 has been officially equipped in the army, and the turbofan 10 is under development, it is natural that the fourth-generation aeroengine for the future will also start pre-research. ?The person in charge of this preliminary research is Jiang Fuhe. For some reference, in 1996, the 624th Institute obtained some technical data of the R79V-300 engine from the Tumansky Design Bureau, and its most obvious structural feature is the three-stage fan-six-stage high-pressure compressor-stage High pressure turbine - 3-6-1-1 structure of the first stage low pressure turbine. The design of the turbofan 10 has not been refined yet. What Chang Haonan drew on the document is just a schematic diagram. Its main function is to serve as a reference for subsequent component-level analysis. It is really unclear if you dont look carefully... Thats why I asked the question just now Of course, when we really started working on the fourth-generation engine behind the 606 in our last life, we found that even if the core engine of the R79 was drained, it could only push the ratio to level 9. Then we had to start all over again, and finally experienced ninety-nine and eighty-one difficulties. Repairing the Turbofan 15 to its full potential is a story for another time... Nothats not the point Jiang Fuhe turned over his head and found that it was exactly what Liu Zhenxiang said, but he quickly raised his head again: Isnt this a turbofan 10? "yes." Liu Zhenxiang nodded. Isnt it a third-generation engine? "yes." Continue to nod. Butthis overall structureis not Jiang Fuhe raised his hand and showed four fingers: Not a typical... fourth-generation characteristic? By increasing the single-stage compressor pressure ratio to reduce the total number of compressor stages, thereby reducing the possibility of surge and the engine''s own weight to improve the performance limit, this is a typical fourth-generation aeroengine idea. ? It is impossible to achieve a thrust ratio of more than 10 for a third-generation aero-engine core engine relying on a traditional 8-stage or 9-stage high-pressure compressor. Large-scale models generally use level 6 or 7, while medium-level models like the EJ200 do not consider the subsequent derivation of other models, and even adopt an astonishing 3-5-1-1 structure. Combined with reducing the number of removable parts and reducing the weight of supporting structural parts, a thrust-to-weight ratio of level 10 was achieved under the dual constraints of cost and technology (although the cost was not limited in the end). "Well...no one stipulates that third-generation aircraft engines cannot use some technologies of fourth-generation aircraft engines, right?" Liu Zhenxiang touched his chin and replied: As for more detailed questions, you can ask Comrade Xiao Chang himself directly later. In fact, when he came here today, he was most interested in the overall design of the engine that looked very much like the fourth generation. You must know that compared with the previous turbojet 14 compressor, it is not an exaggeration to say that it has reached the sky in one step. Jiang Fuhe leaned back in his chair again. As an aviation engine expert, he can naturally see at a glance that due to the advanced core engine structure, this turbofan 10 actually has the potential to be directly improved into a fourth-generation engine. Then the research progress at our 624th Institute must be accelerated no matter what, otherwise... Im afraid it wont be used... (End of this chapter) Chapter 476 Turbofan 10, the 375th generation aviation engine! Chapter 476 Turbofan 10, the 3.75th generation aviation engine! The design review will officially begin soon. ?Although the entire meeting will last two full days, everything is difficult at the beginning. The most important moment is actually the few hours in the morning of the first day. Not only because the big leaders are there, but also because the most important design ideas and basic technical routes are usually concentrated in the first half of the day. Once there is no problem with this part, the entire project will be basically stable. This is the component-level analysis model of the turbofan 10 engine, which is also the zero-dimensional analysis model. In the overall aircraft design stage, a large number of design options need to be evaluated. Considering the limited actual performance of my countrys supercomputers, this requires the calculation speed of the engine analysis model to be fast enough. At the same time, taking into account the accuracy requirements and the need for thermodynamic parameters of engine components for engine noise and emission calculations, component-level performance models are used to calculate the thrust and fuel consumption characteristics of the engine Therefore, we regard each component of the engine as a whole, and only calculate the thermodynamic characteristics of the inlet and outlet of each component. Based on the common working relationship of each component of the engine, we determine the common operating point of the engine, and finally obtain the thrust, fuel consumption and The status of each component At this step, we will not consider the casing and other auxiliary accessories for the time being, and simply calculate the design point and non-design point performance of the engine..." When calculating the design point performance, based on the input design point altitude and flight Mach number, as well as the engine bypass ratio, fan boost ratio, compressor boost ratio, turbine front temperature and other thermodynamic cycle parameters, the efficiency of each component or the total Pressure loss and engine air flow. Based on the order in which the airflow flows through the various components of the engine, the thermodynamic parameters of the inlet and outlet airflow of each component of the engine, the unit thrust and fuel consumption rate of the engine, etc. are calculated. Finally, the net thrust of the engine and the main cross-sections of each component of the engine are calculated based on the air flow of the engine. Dimensional parameters These contents will be basic knowledge for aerospace designers twenty years from now, or even graduate students in related majors, and can be conveyed directly in two sentences. But in the 1990s, apart from Chang Haonan himself, there were few people in the country who had seriously engaged in aviation engine design from scratch. Everyone was groping in the dark, so I still need to introduce it in detail. On the other hand, these workflow-level things are also very important for the technical staff who sit further back and only attend the meeting. Due to the different division of labor, most of the members involved in the research and development of the Turbofan 10 did not actually have the opportunity to truly touch the entire project. They only completed a certain small direction and even small details in accordance with the requirements of Chang Haonan or their immediate superiors. Its just a task. For the turbofan 10 itself, this division of labor is certainly reasonable. But Chang Haonan is planning to use these people as seed personnel in China''s aviation power field. Specific technical development is of course important, but for them, they still need to be exposed to the relevant ideas of overall design as early as possible. The best opportunity is of course the two-day technical review meeting. From Chang Haonans perspective on the stage, we can already see many people writing furiously with their heads down. He even slowed down a bit specifically for this purpose. After all, I have been a student. The teacher talked endlessly on the stage, and I wrote down the notes below. Who hasnt experienced the feeling of taking off? So Chang Haonan added two more sentences here: "However, compared with other common zero-dimensional models, thanks to our company''s newly developed multi-physics coupling algorithm, we can relatively accurately establish mathematical models describing these aerothermodynamic processes in this step, so there is no need to Too many simplifying assumptions. First of all, the airflow in the engine must still be treated as a one-dimensional flow. This is the core of establishing a zero-dimensional model. However, thanks to new technologies, it is possible to take into account the impact of turbine cooling bleed air, external bleed air and power extraction on engine performance, combustion chamber combustion and heat transfer models, and the impact of Reynolds number on the characteristics of each component... " ?Now, its not just the melon-eating people sitting in the back who are taking notes. Even Jiang Fuhe and others on the rostrum pressed the ballpoint pens one after another, making an almost uniform "click" sound. Next, I will introduce the aerodynamic and thermodynamic characteristics of each component in the order of atmospheric environment, inlet, compressor, combustion chamber, turbine, nozzle, manifold, and joint working model..." Just as Chang Haonan expected, after he showed more detailed design data on the projection screen, whispers came from the entire judging panel. After all, the structure of Turbofan 10 is considered unique even in the field of turbofan engines in the world. Even for a 9-stage compressor, 3+6 is generally chosen, and 2+7 is rarely used. What''s more, the pressure ratio of his high-pressure compressor is very high, and the subtracted first-stage fan even seems to be deliberately lowering the first-stage pressure ratio... The expected thrust-to-weight ratio of 8.5-9.0 made everyones first reaction unbelievable. Because this is already the technical indicator for third-generation majorly modified engines such as AL41F or F110-GE-132 to be pushed to the limit. These two models are actually still in the process of flight testing... ?Good guy, the turbojet 13 is still at the level of the 1960s, the turbojet 14 can already compete with the F404 in the early 1980s, and now the turbofan 10... Directly catch up with the most advanced level in the 21st century? Its really just the same model for 20 years? ? Until Chang Haonan''s mouth went dry while talking, he finally came to an end on the overall design and component-level analysis model, and entered the morning question session. Even if the leaders sitting at the leadership table know a little bit about technology, they cannot be experts in the field of aviation development, so the first person to ask questions was Jiang Fuhe, who had already been impatient. The question is naturally about the core machine structure that he has been itching about for a long time. "Comrade Chang Haonan, I noticed that you used a structure like a 7-stage high-pressure compressor on the turbofan 10. Of course it is very advanced, but I want to confirm that the current compressor design level in our country can guarantee that it will pass 2+ Can the total boost ratio of 25-26 be achieved in the form of 7? In addition, it is also a 9-stage compressor, why choose 2+7 instead of the more common 3+6 form? Chang Haonans answer was even more direct: These two questions are actually the same thing. Because the core engine of the Turbofan 10 is actually the core engine of a fourth-generation engine. "ah?" woc Reallyreally the fourth generation? There was almost an explosion below, but fortunately there was a big leader sitting nearby, so order was quickly restored. Chang Haonan continued to explain: "Regarding the issue of single-stage pressure ratio, we have made a huge breakthrough in the active control technology of blade separation flow. Compared with traditional compressor blades, the single-stage pressure ratio is significantly improved. With a total of 9 stages of compressor, it can be achieved The total boost ratio required in the design specifications. As for the specific technical details, according to the plan, they should be discussed this afternoon. After finishing speaking, Chang Haonan added another important statement: Actually, if we dont take into account that the inlet structure of this engine has a very good boost capability, this 2-7-1-1 structure can even reach a pressure ratio of around 28. But in that case, the supersonic performance of the J-10 and J-11 will definitely not be optimistic. Thats why you specifically reduced the number of fans? Liu Zhenxiang seemed to understand something. Yes, but not quite. Chang Haonan said and turned the PPT back to the page where the overall structure of the turbofan 10 was drawn: Generally we think that third-generation engines such as AL41F and F110GE132, which use part of the fourth-generation engine technology and have been enhanced, are called 3.5 generations. "As for our Turbofan 10, it is essentially a fourth-generation engine, but because our country does still have huge shortcomings in materials and processes, it is unable to meet some of the requirements of a true fourth-generation engine, so , had to lower some performance requirements. "If I have to say it, I probably have to use some fourth-generation engines that have been weakened by the third-generation engine technology. Therefore, we are used to calling it...the 3.75th-generation engine." ?This statement is concise and concise enough that even leaders, let alone experts, completely understand it. Meaning that you are ready to enter the international leading level? Looking at the speechless audience, Chang Haonan left behind the desk and walked to the middle of the podium: Thats why I designed the 7-stage high-pressure turbine required for a 10-stage thrust-to-weight ratio engine. After all, the core engine structure cannot be changed, and the fan can be added later. In the future, we only need to make in-depth improvements based on this core aircraft to develop a true fourth-generation aviation engine! (End of this chapter) Chapter 477 Let’s work hard towards vertical takeoff and landing. Chapter 477: Lets work **** vertical takeoff and landing... At the beginning, Chang Haonan did design a complete 3-7-1-1 structure, and even directly raised the sea level thrust-to-weight ratio to an astonishing level of 9.5-10.5. It is completely a fourth-generation engine. ?However, he soon realized that even if he cheated, it would be impossible to actually build this thing in a short time. So we simply made some fine-tuning and performance compromises, and removed one stage of the fan, resulting in a somewhat peculiar 2-7-1-1 structure. ?Of course, even so, the overall performance of this turbofan 10 is enough to be among the best among today''s military aero engines. Anyway, its definitely no problem to sit five and look out to three. ?Chang Haonan''s statement directly messed up the atmosphere of the entire design review meeting. ??What''s the point of reviewing this? Lets learn from it. ?Like the blade separation flow active control technology mentioned by Chang Haonan just now, such as boundary layer suction, this technology is still in the process of installation and testing in traditional aviation powers. ??To be honest, others are experimenting and we are still on the drawing board, so we are indeed still a few years behind. But on the one hand, judging from the current catching up speed of China, who can use these technologies first is still a matter of two minds. On the other hand, being a few years behind was something that would have been unimaginable for China''s aviation engine industry in the past. After all, just two years ago, what everyone was thinking about day and night was how to narrow the gap to less than 20 years! ?The best turbojet 13 in the country at that time, to put it bluntly, it was just a limited improvement of the R11F300. Even when the turbojet 14 was in service, although it made rapid progress, it was mainly due to the low starting point. Just building something would be a huge leap... However, this turbofan 10, although it is still on the PPT, at least from the overall plan, it is already the top level. The review meeting must of course continue. ?However, the 1250C turbine front temperature mentioned later and the related technology of full-coverage film cooling of these hot-end components are no longer so shocking in comparison. Its not that its not important. Mainly Already numb. There is no longer the feeling that Grandma Liu entered the Grand View Garden at the beginning... For other attendees sitting further back in the venue, Chang Haonans paragraph also made quite a few of them realize for the first time what a huge project they were participating in That''s right, in fact, for a highly complex project, most screw-type participants may not know what they are doing until the end of the project. ?This has nothing to do with confidentiality. This is also true for many civilian projects that are not classified. This is just a side effect of the highly specialized division of labor in society. Lets go, Lao Zhou, I just know the design goal of our turbofan 10...is it so exaggerated? ??While an expert group discussion was taking place, Lin Zhibing, an engineer sitting in the back seat in the middle, finished adding the notes he had just jotted down in sketch, rubbed his aching hands and said to another companion next to him. However, he did not receive any response for a long time after he finished speaking. Looking up, I realized that the other person was still concentrating on writing something in the notebook at hand. Apparently, he didn''t hear clearly what he just said. Lao Zhou? Refining red? After calling out several times, it was obviously the companion named Zhou Lianhong who finally reacted: "What''s wrong?" ? Lin Zhibing, who was a little helpless, had no choice but to repeat what he had just said and take a look at the contents of the opponent''s notebook. It is indeed what Chang Haonan just talked about, the thermodynamic model and the like. But around these contents, there are many annotations and sketches densely marked. "This is" Both of them are from Jianning, Hunan Province, but Lin Zhibing is the engineer in charge of technology at Factory 331, while Zhou Lianhong is an aviation engine designer at Institute 608. They had known each other at work before, and they were transferred together to participate in the Taihang project. They became familiar with each other over time. However, Lin Zhibing, who was born as a worker, obviously did not understand these contents as well as his friend. Oh, I just listened to what Mr. Chang introduced and I have some thoughts. I think it can be used in our work over there. Zhou Lianhong answered with his mouth, but the pen in his hand never stopped: "Isn''t Bingcheng Aircraft Group been anxious for a higher power engine in the past two years, for the Z-9 carrier type, I have some ideas, just Write it down quickly." Southern Aviation Power Machinery Co., Ltd. in Jianning is mainly responsible for the R&D and manufacturing of turboshaft and turboprop engines. Of course, these two types of aircraft engines with output shaft power are different from turbofans in many ways. For example, the compressors are both axial flow and centrifugal hybrid structures, but they are always the same in terms of the most basic thermodynamic principles. Hasnt the Turboshaft 8E been delivered to them? ?Lin Zhibing was stunned. Its not enough. The Turboshaft 8E needs take-off power to keep the Z-9 in a hovering state in combat, but the take-off power can only be used for 5 minutes at most. Its okay for transporting people, but its definitely not enough for anti-submarine warfare. Zhou Lianhong shook his head and replied: "So now we are walking on two legs. On the one hand, we are considering introducing the newer Arriel 1M1. On the other hand, we are also striving to improve ourselves on the basis of the turboshaft 8E. After all, foreign exchange is limited and the French ask for high prices. Its not an option to always look for them The whole morning meeting agenda came to an end quickly. The leaders did not understand the specific technical details and had other things to do, so they would leave Shengjing one after another at noon. But the expert team will still have to stay for another two days. ?Although everyone is not confident enough to review the Turbofan 10 now, even from a long-term perspective, this process must be completed. During the break after lunch, Jiang Fuhe found Liu Zhenxiang alone. Old Dean, in this situation, our institutes high-profile pre-research project...the next step..." He was indeed a little panicked. The progress of your "pre-research" is slower than that of other people''s officially approved models, so you still need to do pre-research. ??However, the funds for developing R79 technical data were raised by 624 itself. If this pre-research project does not go forward, it will definitely suffer a loss. ??But if you bite the bullet and continue to do it, the sunk costs will only get bigger and bigger... My suggestion is to change the focus of research. After all, Liu Zhenxiang has worked in the 624 Institute for decades, and he still understands the basic situation of the old unit. ? Judging from Chang Haonans incredible ability, since he has left room for upgrades in the core machine of the Turbofan 10, it is definitely not a lie. Breakthroughs in materials and processes will of course be much slower in comparison, but in terms of difficulty, it is not that high. As long as enough resources are invested, many things will come naturally. By then, this 3.75-generation engine will naturally evolve into a serious fourth-generation engine. ? Judging from the capabilities of 624 Institute, it can be said that it has caught up from behind in core aircraft research and development, and has pushed the improved turbofan 10 out of the position of the fourth-generation aviation engine... It is indeed that difficult. ?Then we can only avoid its edge. Transformto where? Jiang Fuhe couldn''t keep up with Liu Zhenxiang''s thoughts for a while. For large-thrust engines, judging from the current situation of the Taihang project, there should be no need to continue working on this line. The latter had no choice but to further explain: But the power system of the R79 can also take off and land vertically. I have seen the design of the three-bearing rotating vector nozzle above. It is quite advanced. You can work hard in this direction next..." "this" The idea of ??vertical takeoff and landing power was indeed something Jiang Fuhe had never considered. ?Mainly based on the strength of China Aviation Industry in the past, it is very difficult to even copy a Harrier, let alone the Yak 141. Furthermore, the performance of vertical take-off and landing aircraft is bound to be far weaker than ordinary fixed-wing aircraft of the same technical level in all aspects. ??For the Chinese Navy and Air Force, which have not even completely retired first-generation fighter jets such as the J-6, it is unlikely that they will rush to pour a large amount of resources into this field. But the past is the past and the present is the present. ? ? If you want the R79s technical data to continue to shine, Im afraid this is the only way to take an eccentric approach. (End of this chapter) Chapter 478 What, you want to change the national military standard again? Chapter 478: What, you want to change the national military standards again? ?Things have come to this point, and there is nothing to worry about in the next part. In fact, during the next day and a half of the review process, there was neither review nor review. It almost became the final Q&A session. All in all, the scene was very exciting. ? No matter what, the design review meeting of Turbofan 10 ended smoothly. Xiao Chang, this is the most tiring but also the most relaxing review meeting I have ever had. Liu Zhenxiang, who had already signed and had some sore hands, put down the last piece of information, screwed on the pen cap, picked up the tea cup with his other hand and took a sip, and then said to Chang Haonan who had just walked down from the big podium: "In those review meetings in the past, we actually couldn''t discuss too many details at all. After all, it only lasted two days. In addition, the first half of the day was mainly to get familiar with the entire project and materials. There were still many issues to debate in the middle. Sometimes, by the end Its almost like a fight. ?His tone was quite relaxed. After a pause, he continued half-jokingly: But this time you opened my eyes. In this question and answer session of Teacher Chang, no less than fifteen specific technical questions were answered in one afternoon. The efficiency is amazing. Yes, my brain is tired, but it saves worry and energy. Another expert who was also packing things next to him also took up the conversation and concluded in more concise language. Actually, Chang Haonan also found this review meeting to be a head-scratcher. ??More than 90% of the whole course was delivered by him alone, just like his old mother giving a public class. After two days, his throat was almost smoking. The dozen or so expert panel members collectively said the remaining 10%, with an average of less than 1% per person. ?Most of them are just one or two sentence questions. There is water to drink between questions. Of course it saves effort. ?But you still have to be modest: The two seniors were joking. It was a review meeting. They discussed and made progress together. Whether it was an argument or harmony, it was all for the smooth completion of the project. We are just a little more prepared and have prepared countermeasures for many high-level questions from experts in advance, so the whole process may be smoother..." In fact, generally speaking, the design review meeting does not end just once. It may include preliminary review, re-examination or even three or four reviews. But the turbofan 10 definitely does not need the rear one. ?Of course, the final celebration feast is indispensable. ?At noon the next day, Li Liangxin said that the military region guest house had prepared the venue in the evening, and asked the comrades who attended the review meeting to appreciate it. Including the attendees who listened to the report throughout the whole process, a higher-than-usual dinner was also arranged. ??Although Chang Haonan himself really doesn''t feel the need to celebrate, after all, it is the Shengjing Military Region that is the host. He is not needed and he does not need to contribute money from the project funds. It is not easy to refuse too forcefully. Furthermore, even if he and other review experts had no shortage of food and drink, for ordinary scientific researchers who had come to gain experience, this kind of food and drink session was still very attractive in the late 1990s. Think of it as welfare. Although the logistics expenses of the 606 Institute and the 410 Factory are the same as those of the 112 Factory, they have increased a lot due to the emergence of a large number of orders. However, after the start of the Turbofan 10 project, personnel were stationed all over the country, resulting in an even greater increase in the burden. The food is so good that you can''t even go hungry. ?After handing over relevant documents and materials to confidential personnel for preservation, everyone left the auditorium in a mighty manner, preparing to go to the location Li Liangxin had mentioned before. ??It is also in the military compound, but it is not the same place as the agency canteen where we had meals in the previous few days. On the way, Chang Haonan found Liu Zhenxiang again and told him what he had been thinking about for the past two days. Academician Liu, I think there is still some room for improvement in the implementation of the design review process. Design review used to be the responsibility of the General Staff Department, but now it is the responsibility of the General Armament Department, so it doesnt matter if you tell Liu Zhenxiang directly about this. But the latters reaction was quite beyond Chang Haonans expectations: You feel this way too? Obviously, Liu Zhenxiang, who has participated in more design review sessions, has similar feelings. ?However, at their level, just discovering a problem is just a blessing. The key is that you have to come up with a more effective way to solve the problem. So Liu Zhenxiang only talked about this matter with a few colleagues with good relationships in the past. This includes neither Du Yishan nor Chang Haonan. "Um" Chang Haonan nodded: Actually, I had this feeling when I was looking through some research materials and project files before, but it was never very intuitive. After personally participating in a design review this time, I got a lot more ideas. After hearing this sentence, Liu Zhenxiang hesitated: "This review of your project is indeed...a little different from normal situations. It''s not very good as a reference..." Generally speaking, even if the person in charge of the project is very high-level, the review meeting will be like a Zhuge Liang meeting at best. , everyone can find and solve some problems by working together. ?This kind of meeting that turned directly into a class probably only happened in the early days of the founding of the People''s Republic of China when we were building two bombs and one satellite. But Chang Haonan has obviously fully considered this issue: I think its the difference and contrast that makes it more valuable. How to say? Liu Zhenxiang also became interested now. Some time ago, I specially summarized several projects that I have participated in during this period, and found that about two-thirds of the problems discovered during the design process, and even during product production and use, were introduced from the design stage. Therefore, when focusing on product quality, we should start from the source of the product life cycle. But further away, for these projects after the mid-1980s, the design review process of each one is almost different. Especially for some projects that require multiple reviews, the number of people participating in the same model project meeting may not be fixed, resulting in inconsistent focus and inspection content of the review project by the participants, failure to pay attention to issues of concern, and repeated issues. , these will greatly affect the review effect. "Also, take this review of the Turbofan 10 as an example. The review requirements conflict with the confidentiality requirements. Except for you and a few experts, most people saw my information for the first time when they arrived at the review site, and then immediately Just enter the review process, so the first half day or even one day will actually not be effective, but this period of time is still the most important..." ?Chang Haonan said several things in succession. And very specific. A simple summary is - Turbofan 10 has gone well so far because of me, but it wont be the same for every project in the future. It''s just a bit more euphemistic. "So, my suggestion is to issue a national standard for project review, at least military-related project review, to standardize things that were mainly based on experience in the past, so that in the future, even some small projects undertaken by low-level institutions can be standardized. Its not like it would be a mess without the control of senior experts. Things like standards actually dont matter to people like Chang Haonan. But it is of great significance to the overall industrial development. Because it can guarantee the lower limit. ?This proposal surprised Liu Zhenxiang: Are you trying to change the national military standard again? ?Chang Haonan first attracted the attention of the Science and Technology Commission at this level because of the previous reconstruction of aero-engine testing standards. Although in terms of workload, more than 90% of the content was later completed by Liu Zhenxiang and researchers from the 624 Institute. But if we look at the importance of the work, then Chang Haonan alone accounts for at least 70% to 80%. Liu Zhenxiang was also a little curious. Generally speaking, young people in their twenties, especially young geniuses, probably dont like to follow rules the most. But the person in front of me seems to especially like to set standards... Chang Haonan quickly waved his hand: You cant talk nonsense. I dont have the authority to directly change the standards. Im just making suggestions... As a result, he was interrupted by Liu Zhenxiang in the middle of the sentence: Okay, I dont need to pretend anymore. If you put your suggestion forward, there is at least a 95% chance that it will be passed, not just 10%, but at least 95% Tell me how you want to change it, and I will find a few more people to sign after you. ??If the probability of Chang Haonan''s proposal passing alone is 95%, then after adding in some other heavy-hitting names, this probability is basically infinitely close to 100%. The main ones are three. After getting the support he wanted, Chang Haonan stopped being polite and directly expressed his thoughts: First, establish a review expert database corresponding to different levels and majors to ensure that the personnel are relatively fixed. The second is to reasonably determine the design review time based on the type and importance of the project to be reviewed. In particular, it must be clear that the design review materials for major nodes of large and complex equipment are provided to the designated location by the unit being reviewed, and the design review experts will review them within a relatively sufficient time period. Carry out cross-checks and reviews to ensure good review results. The third is to learn from the quality management system audit model and method, implement the design review checklist, standardize the review content, and ensure that the results are traceable. Liu Zhenxiang did not give an answer immediately. He was obviously thinking about these three items from Chang Haonan. But after thinking about it, I didnt think of anything else that could be added. It wasnt until he was almost at his destination that he raised his head again and looked at Chang Haonan: "Let''s put these contents into written form when you have time, but remember to use tactful wording, especially the title." In this regard, Chang Haonan is naturally very experienced and has already prepared the draft: "How about calling it "Thoughts on Improving the Effectiveness of Design Review"?" (End of this chapter) Chapter 479 Chinese enterprises “go global” Chapter 479: Chinese Enterprises Go Global woc, the environment is good... ?After walking into the seemingly ordinary building, Chang Haonan was also slightly surprised by the layout inside. ?But if you think about it, its normal. By this time in 1997, although some military enterprises had begun to be rectified and merged, it had not yet reached the point where "the military was not allowed to do business", so the military region level was still relatively wealthy. In the 1980s, the troops even had problems eating, and self-reliance was a no-brainer. It is similar in nature to the previous settlements. However, as the military expenditure situation has gradually improved in recent years, and with the increasing income from business, the money has become relatively hot to hold on to. Eating and drinking are, after all, a matter of style, but most of all an economic issue. But if you use the money you earn to buy equipment... In short, using it to build a building is the safest way to use it. The first speech was naturally given by Li Liangxin, but he also knew that everyone did not belong to the same system, and there was no affiliation. Talking too much would be annoying, so he just said a few polite words. "By the way, why didn''t Mr. Yan come this time? I remember he was on the list at the beginning?" After three rounds of wine and five dishes, Chang Haonan asked Hai Yide who was sitting next to him. In fact, he has wanted to ask this question for a long time. ?Other than Chang Haonan himself, Yan Zhongcheng can be said to be the only chief engineer in the country who has been responsible for the development of Type 1 aviation development. Now that I have not participated in the Turbofan 10 project, I have no concerns about reviewing myself. No matter how I look at it, I should attend as an expert. But his cheeks hurt when he talked in the past two days, and he had no desire to speak as soon as he got off the podium, so he didn''t think about it again until this moment, after everything had settled. "Hey, I was originally planning to come here, but some time ago, there was a new demand for aeroderivative gas turbines, and this time the demand was particularly urgent. Their entire project team has been working in two shifts recently, and they really can''t get rid of it. body." Hasnt the aeroderivative gas turbine...QC130 engineering test machine been handed over to the shipbuilding industry? ?Chang Haonan really hasn''t spared the energy to pay attention to the situation on the gas turbine side recently, but everyone works in the 606 Institute, and I have heard a few words about it. The QC130 is the power model of the turbojet 14 aeroderivative. The 130 represents 13 megawatts of power (about 18,000 horsepower). The two units combined are enough to propel a 4000-4500 ton frigate. Of course this is the name within the aviation industry. is considered a nickname. Whats your name? Havent gotten up yet. According to past habits, the names of aeroderivative gas turbines are usually simply and crudely added with letters, such as turboprop 6G and turbojet 5G. However, due to a series of standardization operations started by Chang Haonan last year, the entire power field, including gas turbines, is also moving towards naming standardization. But so far, no final conclusion has been reached. So I named it by my nickname first. The QC130 has indeed been delivered, but Huaxia Petroleum Company has urgently invested in a gas turbine project for power generation. The funds are sufficient, but the prototype is required to be delivered before the end of this year..." Haiyide shook his head: He originally thought that it would be a little easier to engage in aviation diversion, but now he is busier than us in Taihang. Before, Lao Yan told me that he was working hard, and he would go anywhere day and night..." Although there will not be a very big difference in the core structure between power gas turbines and power generation gas turbines, many design calibrations still need to be changed due to different application scenarios and fuels used. Where in the country are they so eager to use gas turbines to generate electricity? Huaxia Petroleum shouldnt have an offshore platform, right? Hearing the other party''s answer, Chang Haonan was a little curious. Generally speaking, offshore oil platforms are limited by space issues and will prefer compact gas turbines, which have always been imported in the past. Although the best solution for onshore oil fields is definitely gas turbines, there are always other alternatives. Not for domestic use. Haiyide said as he scooped up a piece of lion head with a spoon and put it into his bowl: Huaxia Petroleums oil reserve-to-production ratio has been getting lower and lower in recent years, so it is eager to explore overseas markets. This gas turbine seems to be used in a Huasu Petroleum cooperation project. Not later... ????Chang Haonan was immediately confused: Who to cooperate with? OhSu refers to Sudan, not the Soviet Union ?Hayide also quickly realized the ambiguity in this passage and explained with a smile. Thats a bit too hasty. Before the end of this year... we cant build the oil field equipment in just a few months, right? In fact, Chang Haonan has no direct connection with the oil industry, and he didn''t really expect to get any useful information from the other party. ??Its just that at the dinner table, you have to find something to brag about. Think of it as oral gymnastics. However, I did not expect that Haiyide has been immersed in state-owned enterprises for many years. Even if it is not about the system, he actually knows a lot: The oil field itself started construction in 1995, but recently General Electric suddenly refused to export gas turbines to this project... General Electric Chang Haonan was also convinced: Maybe they are worried that we will use this project to use gas turbines on warships... ?Similar to the aeroderivative combustion of the turbojet 14, the LM2500 series gas turbines are not only for naval use. Theoretically, gas turbines for power generation are not subject to export restrictions. But theory belongs to theory and practice belongs to practice. ??The United States has suffered such a huge loss in the Boeing-McDonnell Douglas merger, and it is impossible to give up the Chinese market for this matter. It will definitely do something to disgust you. Originally, it was possible to turn to Siemens for procurement, but their actions there were too slow. They said the goods would not arrive until 1999, and there were still a lot of conditions attached. Later, Huaxia Petroleum urgently switched to domestic procurement..." This is also a big problem for imported equipment. Be it machine tools, gas turbines, or even communication equipment servers. Whether it is production or maintenance, the cycle is too long. ?For many large-scale enterprises, they can actually tolerate spending more money, but it would be too bad to have to stop operations at every turn. So many times, even if the performance of domestic equipment is slightly worse, it can always squeeze out some markets. We started building oil fields in 1995... so Huaxia Petroleum moved very quickly... Around 2010, Sudan did briefly become China''s main crude oil supplier, but Chang Haonan did not expect that China Oil would go to sea so early. And this happened to be a direction that he was very interested in. After all, Torch Group must have overseas business in the future. Thanks to the relationship with Jinling Motors, even the advertising space has been prepared. Does the country now have any policies for companies to go overseas? I dont know about this. Our foreign cooperation policy in the aviation field is the unified responsibility of the head office level and has nothing to do with secondary enterprises like us. ?Hayide shook his head. After he lowered his head and ate his food again, he suddenly remembered that although Chang Haonan had been working with them, strictly speaking, he was not considered a person in the aviation industry system: Oh, Comrade Haonan, you are also in charge of a state-owned enterprise in the Academy of Sciences system, right... Yes, a small company, just starting out. ?Chang Haonan nodded and waved his hand to signal Haiyide to keep a low profile: Some foreign companies are now contacting us and want to become users of our main products. However, due to policy issues, they can only be used domestically through the establishment of joint ventures. Is this... The experienced Haiyide will naturally not believe Chang Haonan''s nonsense about a small company that has just started. Although TORCH Multiphysics has a small number of users, they are all large research institutions and state-owned enterprises. It is not making money now because it is still on trial. Period, wait until it is transferred to the official version, and you can make money in minutes. If you want to know more about issues related to going overseas, you can consult the Ministry of Foreign Economic and Trade Cooperation, they are in charge of this area. Even if there is no unified policy at the national level, with your relationship with Comrade Haonan, it should not be difficult to get the authority to deal with special matters... (End of this chapter) Chapter 480 Domestic turbofan 9! Chapter 480: Domestic turbofan 9! The design review of Turbofan 10 was successfully completed, which means that the entire project has officially entered the research and development stage. At the same time, the technical verification work in production and manufacturing has not stopped. In the technical room of Factory 410, a group of engineers were standing or sitting around several computers, looking at the 3D models on the CRT monitor screen. In 1995, the localization rate of WS9 reached 70%, marking the end of the four-year localization project of WS9 engine materials. At the time, it seemed that the remaining 30% was difficult for Factory 430 to solve on its own in a short period of time. Fortunately, in the following two years, Haojing was not in trouble. ??In addition to linking up with Chang Haonan and the 410 Factory through the Seiko Project to become the technology verification model of the turbofan 10, the most important achievement is to digitize the original design of the Sibei MK202. ?Of course, this is also a request that Chang Haonan put forward at the end of last year. ?There are so many design documents related to the Type 1 aero-engine that if they were all presented on paper materials, they would probably fill several filing cabinets. ??To transfer this amount of physical data from Haojing to Shengjing is definitely a huge project. ??And it is almost inevitable that loss or defacement will occur during this process, and then it will be a mess again. So Factory 430 spent most of this year moving most of the technical data to computers. Hissthe design of your turbofan 9 seems to be a bit different from the previous SPEI MK202 An old engineer from the 410 Factory touched his gray temples and said hesitantly. When Sibei was introduced, the original plan was to localize it in Shengjing. However, at that time, the 410 Factory was working on the turbofan 6 with the 606 Research Institute, and they were worried about being affected, so they did not take the job. But there are still many technical personnel who have inspected this model. ?This engineer named Yang Qing is one of them. ??As the most advanced aero engine that China Aviation Industry had ever come into contact with at that time, some technical details can still be remembered even after more than ten years. Zhang Zhenhua, director of the technical department of the 430 factory, nodded. As the person who knows the situation of Turbofan 9 best in the country, he was naturally drawn into the Turbofan 10 project team. Its just that so far, most of the work is still done by the old guys: Indeed, this version has been modified and some unreasonable parts of the original design have been optimized. ?He said and pointed to the screen of a computer in front of him: "The first one is to change the floating ring sealing device at the high-pressure turbine bearing to a grate sealing device. This is mainly to prevent the lubricating oil at the sealing ring from coking, causing the floating ring to become stuck and unable to move, and ultimately causing the floating ring to become stuck. Grinding against the shaft creates a gap for oil leakage, and the second one is..." ?Although the explanation is clear and logical, it is obviously not very convincing. Design modifications ?Yang Qing showed a somewhat worried expression: Are you sure...that you have digested it thoroughly? Although the other people next to him did not directly question it due to their personality or qualifications, judging from their reactions, they probably had similar thoughts. Its not that they have any prejudice against Factory 430. ??But something similar happened during Sibeis imitation process In the mid-1980s, when Factory 430 wanted to convert the ship''s gas turbine to a combustion engine, it did not do enough analysis and testing on the original model of the aerodynamic design of the high and low pressure compressors, and ignored the interaction between the flow path of the ship''s gas turbine and the aircraft. The difference in engine speed almost caused a major accident. ?This wasnt the end of the story. Later, they even started testing the complete machine first, and then tested the components, which was so ruthless that it made peoples eyes darken. As for the result... Although Sibei Gaifan theoretically completed the appraisal test, the test time of the whole machine from 1990 to 1993 was only about 60 hours, which was really unconvincing. In addition, there were no installation targets, and the localization rate could not increase, so we had to That was settled. In short, it is reasonable for Factory 410 to be uneasy about these peers. ?Zhang Zhenhua scratched his head in embarrassment. ?Although he himself was not involved at the time, he must admit that his own unit had indeed done a lot of bad things in this regard in the past. Fortunately, he has already thought about how to face such doubts: These modifications were not made by ourselves. When we came to Shengjing for a meeting at the end of last year, Mr. Chang helped us point them out. No one answered the call. ?However, Zhang Zhenhua clearly heard a sigh of relief.?????Neat and uniform. This explanation is obviously quite convincing. ?Of course, we are all serious technicians, and it is impossible for us to just hear the name Chang Haonan and pass by. So he spent another ten minutes explaining in detail the reasons for making these improvements. So, what are the main technical difficulties we need to overcome this time? Despite the technological accumulation of the turbojet 14, the research and development of the turbofan 10 is also advancing at a high speed, but just like it takes time for students from 985 universities to go back to do junior high school or even elementary school exam questions, it is necessary to localize the turbofan 9 Increasing the efficiency from 70% to 100% is definitely not an overnight process. Three aspects. ??The speaker this time was Lin Weiguo, the technical director of Factory 410. After Zhong Shihong was promoted to deputy general manager, he was urgently transferred back from Persia to participate in the Taihang project. The first is to replace the materials of the 1-7 high-pressure compressor disks, shafts, 1-8 spacers and related transmission parts with domestic 2Cr10NiMoVNb steel. In the process of organizing the production of turbojet 14, we assisted the steel companies to complete the Control of delta-ferrite content in this material. The second is to improve the forging process of low-pressure compressor discs and blades, using hot die forging in the + phase zone at 900C. ?These two pieces of content are logical and can basically be regarded as the mission settlement rewards after the Turbojet 14 is successfully finalized. Subsequently, Lin Weiguo took out a picture from his briefcase and clamped it on the drawing board behind him. The third step is to replace all four sets of spindle bearings with corresponding domestic models. Fuzhou Bearing Group will be responsible for the production of the bearings themselves, but for us, we need to integrate the bearings and the entire support structure in advance before final assembly. , become the same spindle connection component. This already belongs to the category of design improvement, and is actually completed by 606. Its just that the designer over there went to the review meeting today, so he couldnt get away. So in order to explain the situation easily, he specially printed a drawing and brought it over. In this case, if you want to remove the bearing, you have to disassemble the entire engine. ??Yang Qing, after all, has rich experience and knows Sibei relatively well. He was the first to see the clues: Butit can indeed reduce about 100-120 parts and about 25 kilograms of weight. It should be said that Spey MK202 is indeed not a very advanced engine. Especially for China, which has successfully implemented the finalized turbojet 14 on this timeline. ?Its only advantage may be that it has very low fuel consumption, but that comes at the expense of a medium bypass ratio. ?According to national standards, this engine with a thrust of just over 9 tons has a dead weight of 1842kg, which is heavier than the F110 and AL31F. Considering that even if this old-fashioned core machine is pressed to the limit, the thrust will hardly exceed the 10-ton mark, so the best way to improve the performance of the domestically produced model is to increase the weight. In addition, reducing the number of parts will also help reduce the failure rate. So this is one of the technological trends of the fourth generation engine. ?For example, the number of components of the EJ200 engine is only about 65% of that of its predecessor RB199. The trade-off is that it may be difficult to repair if it breaks down. This is a bearing we developed using the latest technology. It is produced according to the standards of the third-generation engine, that is, the turbofan 10. The expected life is not shorter than the first turning cycle of the engine. ?Lin Weiguo tapped the drawing board lightly and explained, That is to say, under normal circumstances, only the entire component needs to be replaced during the overhaul process, and there is no need for ground crews to disassemble it for maintenance or repair. So... our turbofan 10 will also use this technology? Another person asked. ?Everyone knows that improving the Turbofan 9 is just a casual step, and these high-end technologies will eventually be implemented in new models. General Manager Changs goal is to control the number of components of the turbofan 10 to less than 2,200, while the current turbojet 14 has about 3,150 components. ?Lin Weiguos answer was concise and concise: I did some calculations before. If this round of testing passes successfully, the localization rate of Turbofan 9 will probably increase to about 92%. After all, after all the main bearings and high-pressure compressors are domestically produced, there is basically only the last hard nut left, which is the turbine. This part will have to wait for a while to verify the domestic third-generation nickel-based single crystal materials. He put down the pen in his hand, turned around again, and looked at the colleagues in front of him: According to the timetable, the domestically produced turbofan 9 will probably be put into complete testing in the middle of next year! (End of this chapter) Chapter 481 The confused British Chapter 481 The British at a loss The acceleration of the localization of turbofan 9 will of course have the most direct impact on the Haojing Aircraft Industry Group. In fact, since a few years ago, the Navy and Air Force have been hoping to equip improved models of the JH-7. ??However, all the SPEI MK202 engines in stock have been installed on current aircraft, and a batch of stock engines and parts purchased from the UK have basically been used for intermediate repairs. So despite the improvement plans one after another, Chang Haonan even came up with a "half-step electric warfare saint" such as the JHD-7, but there was no way to put it into mass production. The JH-7 is indeed not as advanced as the J-10/J-11, the two third-generation aircraft, but for the aviation units currently equipped with a bunch of J-6s, there is really nothing to choose from. It can fly nearly 4,000 kilometers, can go supersonic, and can also launch anti-ship missiles from a relatively safe distance. In some improvement plans, it can even perform a cameo role in air interception missions. ??What else do you need a bicycle for? So after the turbofan 9 is fully domestically produced, a large number of orders will inevitably fly to Haojing like snowflakes. ?However, it was someone else who was most affected. ?? Xujiawan, Weiyang District, Haojing City. In a three-story building that had obviously just been completed. ? George Brin and Adam Whittle were sitting solemnly in a conference room on the top floor, looking at a document sent from Rolls-Royce headquarters. ?The content of the document is not complicated, that is, it routinely requires company personnel stationed around the world to prepare and submit work reports for a full year. Although it is not yet October, this kind of notice is definitely better served as early as possible. After all, the annual workload of some large branches can be summarized in one or two months. Coupled with the writing techniques used by the British when writing reports, a quarterly notice in advance is not an exaggeration. But this definitely does not include the two people who are looking sad now. This years report The slightly younger Adam raised his head and asked the more experienced George next to him. The latter has worked as a foreign engineer in several countries and is a first-rate veteran in dealing with water reports to his superiors. Its hard to deal with... ?George sitting next to him also shook his head: When I worked in South America before, I always had something to write about, but this year we did... almost no work at all..." ? A few years ago, he was responsible for the model adaptation of the AE3007 engine and the ERJ145 passenger aircraft in Brazil. It was also a job with a small but lucrative job. ?More money and less work, everyone likes it. But the problem is that their work is too little. The two of them were posted to China from the UK in November last year. This matter will start from 1995. After stumbling along the way to increase the localization rate of SPEI to 70%, Factory 430 also knew that continuing like this was not an option, so in the name of Haojing Aviation Engine Group Co., Ltd., it established a partnership with Rolls-Royce, the old owner of SPEI MK202. Royce formed a joint venture. Each party invests 50% and is responsible for the production of aviation blades such as compressors and turbine disks. For the British, although Spey is a military engine, it is not a top product like the EJ200 after all. This model has basically no value to themselves. Now that they can recycle the waste and sell the products and technology to make a final profit, Rolls-Royce will naturally not refuse. For China in 1995, even the technology that the British did not want was quite valuable. Although they knew that the price the British asked for was a bit of a trap, there was no other way. It hit it off at the end. It took less than a year to complete all the procedures required in both countries before establishing the joint venture. ??This company also simply and crudely took the first words of the two companies and called it "Siro Aviation Parts Co., Ltd."... According to the original plan of the British, the last 30% should be a steady stream. First, the whole piece would be exported directly through the Ciro Company, and then the technology would be gradually transferred. This would last for five or six years, squeezing out the last remaining value of Spey. . ?Two business managers, Adam and George, were sent here for this purpose. There were more than a dozen other engineers who came with the two of them. At the beginning, everything went exactly as they expected. In the last two months of 1996 alone, China purchased more than 50 sets of turbine disks and high-pressure compressor components, and sent about 50 engineers to join Ciro to receive corresponding technical information. Then There is no more. In the past nine months of 1997, although the two people could still receive high wages from both China and the UK, they seemed to have been forgotten by the world. Dozens of experienced engineers were removed and replaced with a similar number of guys who looked like they were interns. As for the procurement of components, there is no further progress... ?This is obviously not a good thing for Adam and George who carry KPIs on their backs. ??Although catching fish is fun for a while and always feels good, Luo Luo obviously will not always be taken advantage of and support two useless people. Adam, we have to do something. ?George learned from the experience and felt that he could no longer continue to degenerate like this: Otherwise I reckon well lose our jobs next year, or at least be recalled to the UK. ??The two of them can only be regarded as ordinary middle-level employees with some qualifications at Luoluo headquarters. After get off work, they have to deal with all kinds of household chores, so naturally they are not as comfortable as they are here in China. ?Not to mention the amount of money they receive, as senior managers assigned by foreign investors, they actually enjoy a lot of benefits. ??Definitely not willing to go back. But the money is in the pockets of the Chinese people, and they dont take it out, what can we do? ?? Adam naturally knew the seriousness of the matter, but the Siro company made it clear that it was the dumplings wrapped in vinegar for Sibei. Now there is something wrong with the vinegar, and naturally no one cares about the dumplings. First of all, we need to figure out why they have this change. It was obviously not like this last year. ?George lit a Marlboro, put it in his mouth and sucked hard: Even if the Chinese came up with an aircraft engine with quite good performance last year, the Spey is a completely different model after all, and its not that easy to understand. ?This logic is generally correct. Let alone China, even if you ask the Americans or Russians to copy a Spey, it will still take several months. Perhaps they dont need this model anymore? Adam next to him immediately thought of the worst possibility: I have seen the kind of aircraft they use Spey engines. The positioning and technical level should be similar to our Tornado, but without variable sweep wings. ?George, who was puffing away the smoke, shook his head directly: Impossible, I often watch their TV news recently. The Chinese Air Force is still equipped with many old models such as MiG-19 and MiG-21. You must know that they even considered directly purchasing Tornado as a fighter-bomber. Is there something wrong with the relationship between the two countries? I heard some rumors that at the end of June this year, a fleet of the Royal Navy had some conflicts with China. Adams thinking is still not quite coherent. "Not to mention, the incident you mentioned is almost an open secret. It is precisely because of this incident that the current Prime Minister Blair was able to successfully win the election. I feel that as long as China is willing to pay, the Labor Party would like to sell the entire Portsmouth Port to them." ?Judging from George''s tone, it is clear that he is somewhat dissatisfied with the current parliamentary structure. ?However, considering the "great achievements" of the Labor Party after World War II, it is reasonable. Having said that, although what he said was a bit exaggerated, the truth was still correct. The atmosphere in the conference room fell into silence again. How about It wasnt until George finished smoking the cigarette in his hand and put it out in the ashtray that he spoke again: Should we make some appropriate concessions in terms of price and technology transfer progress? (End of this chapter) Chapter 482 Ask Mr. Chang for his opinion Chapter 482 Ask Mr. Chang for his opinion After all, they are supervisors with a technical background, and their future job prospects are also involved, so the two people naturally moved very quickly. At noon the next day, an official letter written in Chinese and English was delivered to the desk of Ren Bingda, deputy general manager of Haojing Aero Engine Group Company (actually the main unit of Factory 430). Official documents written by the British are naturally quite long and full of long and difficult sentences that are difficult to understand even when translated. ?However, after reading the first few lines of content, the expression on Ren Bingdas face quickly changed from impatience to joy. ?After watching it from beginning to end, he seemed to be still a little bit unsatisfied, so he went back and watched it a second time. Such an action naturally aroused the curiosity of another person sitting on the sofa next to him. Old Ren, what are you looking at? Turn it over. Gao Ning, deputy director of the production department of 430 Factory. Since Zhang Zhenhua has been stationed in Shengjing a few months ago, he is currently mainly responsible for the production tasks of the entire factory. ?Of course, theres nothing actually easy to produce right now... Good stuff ??The index finger of Ren Bingda''s right hand flicked the edge of the page a few times, making a crisp clicking sound: I never imagined that Luoluo Company would take the initiative to negotiate terms with us... Gao Ning, who had just picked up a cup of tea, paused and hung his hand in the air: Negotiate terms? What terms? Of course its the price, oh, and the timetable for technology transfer. ??Ren Bingda said as he put the documents back on the table with a proud expression. As the leader in charge of daily business with Ciro Company, he can naturally read the meaning of the other party from the British writing habits. What to finalize the component procurement plan for next year as soon as possible and update the specific content in the technology transfer list. ??Its just that the year is coming to an end, and China still hasnt shown the need for additional orders. Its urgent. int Gao Ning took a sip of tea and shook his head slightly: What were you doing earlier? Its only now that I think about it and Im anxious...its too late... He and Ren Bingda had dealt with the British in the past two years, and they had suffered countless suffocations. ?Most of the time, either others do it intentionally, or they inadvertently show condescension in ordinary communication, which makes people even more irritated. As for the Spey Engine business, the profit margin is quite terrifying. Especially finished parts. After all, to the British, these things are just some items in the inventory that are almost useless. If there was no such thing as the Ciro Company, they would probably be prepared to be destroyed. For this reason, Adam and George have considerable say in pricing. Anyway, no matter how much or how little you earn, you will make money. The reason they have refused to lower prices before is because they have grasped China''s urgent need for the localization of Sibei. You have no choice anyway, even if the price is higher, the business can still be done. ?This idea was indeed correct when negotiating to establish Xiro Company two years ago, and China did accept it. But now... Times have changed, my lord. But, then again. After all, Ren Bingda was not a newbie. After the excitement of the situation was over, he quickly calmed down and started thinking about business: We do need to consider the future positioning of our Xiro Company. Positioning problem? Gao Ning was stunned for a moment: "Yesterday afternoon, I called Minister Zhang. He said that if there was no accident, it would be a complete national production of turbofan 9 improved engines in the middle of next year." , it should come to an end, right?" He started out as a skilled worker and later went to the Workers'', Peasants'' and Soldiers'' University as a cadre. His sensitivity in company management is indeed much worse. Ciro Company was indeed established to promote the localization of Sibei. Ren Bingda took out a pack of cigarettes from his pocket and pulled out two. However, Gao Ning said that he was quitting smoking, so he had to put one of them into his mouth, lit it with a match, and continued: Although there is no need to rely on the British for this model of Spey now, it would still be a pity if this table was just thrown away. Gao Ning, who was sitting on the sofa, was already in the process of quitting smoking. When he saw someone smoking, he found it difficult to control himself. He drank tea more frequently while talking: If you dont want to throw it away, then use it to train young students. Some time ago, in order to participate in the Taihang project, you withdrew the experienced old guys from Xiro Company and replaced them with dozens of young people who had just joined the company a few years ago. Didnt you also have this idea? Ren Bingda was not embarrassed when his purpose was revealed: Hey, lets squeeze out the surplus value of capitalism... ??As he spoke, he raised his hand and waved it gently to disperse the smoke that was lingering in front of his eyes: However, these two British people obviously felt something was wrong. Isnt that why they sent us this letter? Let me tell you, if its bad, its bad. Anyway, the money we invested in this Xiro Company is not too much. Now that the strong man has cut off his wrist, the loss will be less. Gao Ning still means direct cutting. But Ren Bingda waved his hand: Rolls-Royce is, after all, one of the three largest aircraft engine manufacturers in the world and plays a pivotal role in the entire aviation manufacturing field. "Although Xiluo Company is small in scale, the business scope it was approved for was very wide. It is a bridge between us and Rolls-Royce. If possible, I still hope to keep it, even if it temporarily raises a few useless British ones. People deserve it too. Actually, if it had been last year, Ren Bingda''s thoughts would not be any different from Gao Ning''s. But this year, he received a huge stimulus from his neighbor, the Haojing Aircraft Industry Group. ?Originally, everyone''s level is about the same as that of others. Let''s not talk about food. Anyway, we can barely get enough food and clothing, and hug each other to keep warm. ??But due to a wave of cool operations at the beginning of the year, Haofei took off immediately. MA 60 has obtained airworthiness qualifications from both Europe and the United States through the Mutual Recognition of Airworthiness Agreement, and has signed a contract with Bangkok Airways, achieving a wave of export earnings. Whats even more awesome is that they also sent technicians to France to work with Airbus to transform two A330 passenger aircraft into A330AIT icing water sprayers specially used for simulated icing experiments. In the past, China hired technical personnel from Europe and the United States at high prices to guide its business. Who would have thought that it would suddenly have the opportunity to make a comeback? This is something worth writing about in a big way. ? Comparing the two, the Haojing Aero Engine Group, which is also located in Haojing, seems to be overshadowed. And Ren Bingda was naturally not content with this. Thats why I thought of stabilizing the Siro Company first. When opportunities arise in the future, I can also engage in serious technical cooperation with the British, and even reverse export! In addition, doing so will also help maintain their position in the field of aviation power. Considering that the two super large projects of Turbojet 14 and Turbofan 10 are both located in Shengjing, anyone with a discerning eye can see that other domestic aerospace development research and development units will definitely be outclassed in terms of technical strength. ??But if Haojing can pave the way for international cooperation with Luoluo in advance... At least we still have some say in channels. ?Of course, its hard to talk about this little thought in public. What should we do? Gao Ning put the empty cup back on the table: "I heard Minister Zhang say yesterday that the 9A turbofan produced by the 606 Institute has changed many of the original designs of the Spey MK202. Even if we want to continue to pay for this, the British cannot supply it. " ?Ren Bingda nodded and put out the cigarette **** with some distress: "Of course I know this, so my initial idea is to see if there is anything that we need and the British are willing to let go of, at least to maintain the business first..." In this regard, Gao Ning is even less likely to have any clue. After thinking in vain for a long time, he decided to give up: I think, why dont we talk to Minister Zhang about this matter and ask him to seek Mr. Changs opinion? (End of this chapter) Chapter 483 Only with strength can we have the capital for equal dialogue! Chapter 483: Only with strength can we have the capital for equal dialogue! "this" ?Ren Bingda lit up his second cigarette, but his smoking action was obviously hesitant: This kind of thing is our units own business after all, so why dont we alarm Mr. Chang? He is now in charge of the Taihang project. He probably has a lot to do every day. How can he have the energy to care about a small unit like Xiro Company with dozens of people? ?This statement is of course just a casual comment. He has never had the opportunity to meet Chang Haonan in person. He has only heard about this famous name and related deeds from internal and public media reports, as well as various legends. ?Although there are many versions, one thing is certain. That is, Chang Haonan has a strong influence at the top level of the Science and Technology Commission. ? And his public positions involve the 973 program and the general manager of a state-owned enterprise within the Chinese Academy of Sciences system. Obviously, he can also speak to the Science and Technology Committee. ?In this case, Ren Bingda was mainly worried that the other party would deny it as soon as Jinkou opened the door. ?That leaves no room for maneuver at all. Next to him, Gao Ning and Ren Bingda have been working together for many years. Looking at the latter''s expression, you can probably guess what the other is worried about. "You shouldn''t worry about Mr. Chang''s attitude. I heard from an old classmate who works in Institute 603 that he was the one behind the signing of the aviation industry cooperation agreement with the European Union at the beginning of this year. And The D436 engine that landed in our factory, after McDonnell Douglas was acquired, arranged for Shanghai Airline to switch to production of passenger aircraft designed by Tupolev..." ?One thing after another seems to be enough to prove that Chang Haonan is not the kind of old stubborn who is unwilling to communicate with the outside world. Of course I have heard all the rumors you mentioned. ??Ren Bingda took a long puff of cigarette, his frown did not relax due to Gao Ning''s enlightenment: "But think about it, Mr. Chang is probably less than 30 years old. He was still a student when he received the May 4th Youth Medal in the first half of this year. Even if he was a working graduate student at the time, he probably wouldn''t have much time to work. Year." At this point, he hesitated again, but considering that Gao Ning and he also had a life-long friendship, he finally said it: A young man suddenly appears, and so many decisions related to the direction of the industry are related to him... Is this reasonable? This is unreasonable. So I think Mr. Chang must have some abilities, but these things are probably done by his superiors in order to increase his prestige. He has done countless things... ?Originally, Ren Bingda was just guessing, but after reasoning like this, the more he said it, the more reasonable it became. And its very exciting. In short, I convinced myself. ?The Gao Ning people were numb when they heard this analysis for the first time, but for a while they couldn''t think of any strong evidence to refute it. After holding back for a while, they answered: "Even if that''s the case, then when he makes decisions, he always has to consult with his superiors and maintain his past personality, right?" Besides, we are not contacting Mr. Chang directly, and we cant contact him either. We have to go through Minister Zhang in the middle. He is participating in the Taihang Project in Shengjing, so he needs to know more about Mr. Changs specific situation..." ?Seeing Ren Bingda behind the desk, he still had some concerns, so Gao Ning had no choice but to throw out further chips: You think, with Mr. Changs voice and the resources at hand, if he could help, it would save a lot of trouble... Facts have proved that the effect of painting cakes is generally good. Because two days later, Zhang Zhenhua, who received the request for help, took advantage of noon to find Chang Haonan. The latter did not rush back to the capital immediately after the meeting. At this time, he was writing the "Thoughts on Improving the Effectiveness of Design Review" in an office vacated by the 606 Institute. Zhang Zhenhua, who hurried over, also closed the lid of his laptop with some curiosity: Zhang Gong, this is... ?The other party was obviously a little anxious, but if it was something related to the project, Zhong Shihong or Hai Yide should have called him long ago. Mr. Chang, its a private matter related to our Haofa Group, so I came to bother you during non-working hours. ?Zhang Zhenhua said and put his hands on some of the information he had compiled on Chang Haonan''s desk. ??It was naturally impossible for him to come over and report to Chang Haonan in vain, so after receiving a call from the group yesterday, he compiled the general situation into words that night. This is the portion he brought over today. Since it is a matter of Haofa Group, it is not considered a personal matter, it must be counted as overtime... Chang Haonan half-jokingly pulled the information in front of him, then raised his hand to motion to the chairs next to him: Mr. Zhang, find a place to sit. There is water in the box next to you. Ill take a look at the materials first Given Chang Haonan''s current position, someone would naturally be responsible for preparing hot water and the like, but he was used to drinking cold drinks in his previous life, so unless he was making tea, he usually just wanted to save trouble and just find someone to move a few boxes. The Daqing Baoquan produced in Shengjing was placed in the office and finished. In short, in Shengjing, even the King of Heaven has to drink bottled water when he comes here. ?Zhang Zhenhua quickly took out a bottle, unscrewed the cap and took two sips. ?Like most front-line engineering staff of this era, he is a heavy smoker. But before coming, Zhong Shihong specifically told Chang Haonan that he didn''t like the smell of cigarettes, so even if he was addicted to cigarettes, he definitely couldn''t smoke here. Ciro Company Before Chang Haonan was reborn, he had indeed heard that 430 Factory had engaged in technical cooperation with Rolls-Royce for a period of time. After 2010, it also helped Rolls-Royce produce many non-core parts through this channel. In a sense, Exports in the aviation development field have been realized. But it was indeed the first time he had seen this company name. Almost laughed. ?Of course, in 1998, Ronaldo was still the active player on the football field, the Brazilian one, so he still held it in. After the brief inner drama, Chang Haonan soon became serious. The content of the material, simply put, is that Hao Jing wants to keep the hard-won foreign cooperation channel of Xiro Company, but at the moment they dont know how to operate it, so they hope to get his opinion. ?This idea indeed coincides with his recent thoughts. After all, at the celebration banquet on the day after the design review meeting, he and Haiyide discussed the matter of Chinese enterprises going overseas. ?With the current scale of industry that China has gradually begun to explode, it is impossible to support it solely by relying on the domestic market. You still have to earn money from foreigners. It''s just that I have been busy adding to the national military standard for the past two days, and I didn''t bother to go back to Beijing to ask. ?Prior to this, he indeed promoted several international cooperation, such as the two A330AIT icing verification aircraft that have now started construction. ??But this is a project-driven individual case after all. ?You cant just let senior executives come forward to negotiate every companys plans to go overseas. Therefore, it is best to form channel inertia and develop a commercially effective ecological strategy. At the end of the material, Zhang Zhenhua also specially attached the content of the letter written by the British. After all, being able to be so proud of the domestically produced Spey is mainly due to Chang Haonan. ? ? If he hadnt listed the improved turbofan 9 model as a technical demonstrator for the Taihang project, Im afraid we would still have to beg for food from the British in the 430th game! It seems that this British man is still very aware of current affairs... Chang Haonan was really in a good mood after seeing this paragraph: In the final analysis, only with strength can we have the capital for equal dialogue! Yes, this is also thanks to your blessing... ?Zhang Zhenhua saw that Chang Haonan''s attitude seemed to be good, and he quickly blew a rainbow fart. Chang Haonan quickly waved his hand to interrupt: But in any case, under the circumstances of the past few years, Rolls-Royce is willing to do business with China, even if the price is high, it shows that they can indeed cooperate. The previous years he mentioned did not start from the introduction of Spey in 1975. As early as the end of 1961, China signed a contract with the British Vickers Company to purchase six Viscount passenger aircraft, which were still relatively advanced at the time. The power installed on them was the RB.53 engine manufactured by Rolls-Royce. To this end, the country also sent a group of technical personnel to the UK to learn the maintenance and repair technology of this kind of engine. It can be regarded as the first exchange between China and Western countries in the field of aviation technology. As an old capitalist country, the British are indeed very capitalist. ?As long as you dare to give me money, I will do any business. After all, this is 1997, not 2017, and Europeans still have some dreams. ThenMr. Chang, what you mean is Sibeis business is technically no longer necessary to continue. ?Chang Haonan closed the material in front of him and leaned on the back of the chair: But these two British people who are aware of current affairs still have to protect themselves. Otherwise, it will be a bit troublesome to get two die-hard opponents of China. Aware that this was a deployment, Zhang Zhenhua quickly took out a small notebook and took notes. "My personal suggestion is, first of all, the old JH-7 still needs the parts of the old model. If the price offered by the British is really sincere, then it is acceptable to buy another batch to stabilize Rolls-Royce. " "Second, we still need to make it clear to the two British people that this is not because we have a need, but because we want to help them in the past business relationship. As a condition, we need to appropriately expand the scope of cooperation between the two parties. After all, Sibei is too If they are lagging behind, let them come up with something newer. It is hard to let go of the child and not catch the wolf. Although the ultimate goal is to achieve export, the meal must be eaten one bite at a time. Its too new a technology... Im afraid the other party wont agree, right? Zhang Zhenhua stopped writing, raised his head and asked: "Those two British people are only in the middle class after all, and their right to speak is limited..." Its certainly impossible for you to ask for a main model like the Trent 700, but you can use the sausage-slicing tactic and do it step by step. "I think Rolls-Royce''s lightweight turboshaft or turboprop engines are good. The technology is very advanced and not so sensitive. It happens to be a blank in the country. We can''t spare the manpower and energy to specialize in it for a while. It''s totally possible to talk about it. Lets talk! (End of this chapter) Chapter 484 A positive example Chapter 484: Set up a positive example For a long time, the aero-engine field has practiced model traction, which is the principle of simply treating the engine as an aircraft component. ?At a time when the aviation industry had just been established from scratch and was dominated by imitation and license production, this model was indeed conducive to concentrating the already small resources and conquering the production of key models in a short period of time. However, as Chinas technological strength gradually improves and moves toward independent research and development, the shortcomings of this approach are gradually exposed. The most important thing is that each R&D unit, and even different models of the same R&D unit, work independently, with almost no technical connection. ??Each aviation development project starts from scratch, and may be abandoned at any time due to the loss of installation targets. Naturally, the research and development efficiency will not be optimistic. This kind of approach cannot be tolerated even in countries such as the United Kingdom, the United States, and the Soviet Union. Coupled with the weak foundation and low investment in the aero-engine field, there is a large gap in the domestic aero-engine model spectrum. The drawbacks brought about by model traction were quite far-reaching, and they even lasted until Chang Haonan was reborn in his previous life. ?For example, Coach 10, which seems to be better than Coach 9 in every aspect, has been plagued by insufficient engine supply for a long time. ? ? Its supporting domestic model of the benchmark AI222-25 engine, the turbofan 17 "Minshan", has gone through many ups and downs, and has never been able to achieve installed capacity and mass production. ? Technically speaking, this small-thrust turbofan that does not even have an afterburner is not complicated, at least it cannot be more difficult than Turbofan 10 and Turbofan 15. ? ?The reason why it has been delayed is largely because under the "model traction" mode, even a small push has to be built from scratch (for example, the mapping of the turbofan 11, which is a copy of the AI25, took 10 years). ??As for a training aircraft and several large UAVs whose total output may not exceed double digits, whether it is necessary to go through such a process has become a very tangled question. In 2016, when it was finally decided to abandon the turbofan 17, this choice seemed to have no problem. ?However, due to well-known reasons, Ermao suddenly and completely lost the ability to continue producing AI222-25 a few years later, causing the production and service progress of the Coach 10 to be affected. ?A series of large high-altitude jet drones can only choose the turbojet 7 without the afterburner as power. Although Chang Haonan has started to change this situation nearly twenty years in advance, it will take some time, and judging from the current situation where more than half of the country''s efforts are required to build a turbofan 10, it may be difficult to achieve it in the short term. Extra effort is taken care of those non-key models. The talent team has a training cycle after all. ?Of course, it is impossible for Chang Haonan to express this thinking process openly. So Zhang Zhenhua was a little confused at first: Mr. Chang, we are already developing high-thrust third-generation turbofans, so why should we introduce lightweight turboshaft or turboprop engine technology? Faced with such a direct question, Chang Haonan could only "polished" the reason a little: Gong Zhang, I am not a **** after all. My energy is always limited, and it is impossible to be involved in all models and projects. After saying this sentence, Zhang Zhenhua''s face already showed an indescribable expression. ?That basically means "Are you not considered a god?" ?However, Chang Haonan didn''t notice it and just continued to explain: Besides, you also know that what we have been studying are axial flow engines, and these lightweight turbine shafts and turboprops generally use axial flow and centrifugal series connection, which is inconsistent with our current main attack direction. If we can complete our countrys 300kw engine model series at a relatively limited cost, it will also be a great help to the development of our countrys aviation industry. But Mr. Chang, we dont seem to have a model that requires an engine of this level right now? Zhang Zhenhua has worked at the 430 Factory for nearly twenty years. Although he is dissatisfied with the current situation of "model traction", when it comes to analyzing specific problems, path dependence is still unavoidable - Hence, he subconsciously believed that it would be difficult to install an engine without an installation target. ?This question gave Chang Haonan the opportunity to express his further thoughts: In fact, 300kW class light turboprops should be installed soon. One is a new primary trainer aircraft that will definitely be needed after entering the new era. Although the Chujiao 6 is a classic, it is already a model nearly forty years ago and is no longer able to meet the flight training needs of the new era. The other one is the long-endurance integrated surveillance and attack drone that Chang Haonan has talked about with Guihang Industry before. In the past life, China suffered a lot in the power of drones. It could only choose to import and produce a low-power piston engine from Austria, which delayed the development of many models. Many businesses, especially those in technology, were much easier to do in the 1990s than they were twenty years later. ?However, Chang Haonan did not talk about these things. First of all, because Zhang Zhenhua is not at a high level, it is difficult to talk too much about matters related to aviation industry planning. Secondly, Chang Haonan felt that at this critical moment, he needed to set an example. A typical example of "the engine was launched without an adapted model and later became a success". Just like the fact that the factory raised its own funds to develop aircraft, it was only after Hongdu developed the K8 training aircraft and achieved great success that it was gradually accepted by the entire aviation industry system. Now everyone knows that there is a problem with the "model traction" model. But if we directly separate the aviation industry from aircraft models, no one knows whether it will work except Chang Haonan, who is a reborn person. ?Just like Zhang Zhenhua just now, he is inevitably affected by the inertia of thinking. At this time, if 430 Factory and Xiro Company can give a sample, then the resistance will be much smaller. So, after briefly organizing his words, Chang Haonan slowly spoke: Aviation power research is a long-term topic. The research and development cycle of aviation engines is longer than that of the aircraft itself, so we cannot wait until there is demand for models before thinking about research and development. Mr. Zhang, we have suffered too much from this in the past. Lets not talk about it far, lets just talk about Turbofan 9 and Turbofan 10. They are both aircraft engines. During this period, we had to rely on imported foreign models to make the transition. Having said this, he stretched out **** and lightly tapped the table in front of him to emphasize: "Even if the J-H-7 and J-10 J-11 are national key projects, and we can concentrate our efforts on solving them, you should know how many things have been delayed in the meantime. Therefore, if you don''t worry about the long-term, you must have immediate worries. We are about to enter the new century. Now, our thinking must keep up with the times..." Chang Haonans words still have some weight in the aviation industry system, especially those units that engage in aero-engines. Therefore, although Zhang Zhenhua still felt a little doubtful in his heart, he did not refute it in any words: "Mr. Chang, when I get back, I will report your attitude to the company and ask them to find a way to negotiate with Luo Luo?" "Can." ?Chang Haonan nodded, but quickly called out to Zhang Zhenhua who had already packed up his notebook and was about to leave: However, two things must be guaranteed. First, there must be complete technology transfer. The hard technical barriers for this kind of small turbine are not high, so it should not be difficult to negotiate. Second, after we get it back, we must have the right to improve the product according to our own standards and needs, and cannot be controlled by outsiders. Zhang Zhenhua almost subconsciously stood upright after hearing this: "clear!" (End of this chapter) Chapter 485 Negotiate with Luo Luo! Do you British people have this day too? Chapter 485: Negotiating with Luo Luo! Do you British people have this day too? ?Chang Haonan''s reply is undoubtedly a boost for Ren Bingda, who has always wanted to build Haojing Aviation Development Group into a window for external communication. ??This also made him, who had been a little worried these past few days, finally breathe a sigh of relief. ? He ??almost wrote a report on the future development direction of Xiluo Company as quickly as possible and submitted it to Yin Xingjian, general manager of Haofa Group. ??The latter read the report in his hand back and forth twice. ?Although it was only a mere five pages, holding it in his hand made him feel as if it was a piece of paper. Lao Ren Yin Xingjian put the report on his desk and hesitated for a while before finally speaking: "Your idea is indeed good, but now you have neither instructions from your superiors nor a confirmed target for installation. If you rashly introduce a new type of engine from abroad, if something goes wrong in the middle, it will be difficult for you and me to shoulder this responsibility..." ah" Obviously, as a big leader, Yin Xingjians first consideration is stability. ?Especially since he has heard some rumors. The five major military industrial corporations may need to be reorganized in the next few years. ??Although he doesnt know the specific situation yet, as a veteran, he knows that at such a critical moment, it is certainly a good thing to be able to achieve results, but the more important thing is to ensure that no mistakes are made. "Furthermore, our group is a small business. Although the localization of turbofan 9 is progressing quickly, it has not yet been put into production. We only have a serious model like turbojet 8. The aero-derivative turbojet 8G is also popular. Beijing''s Turbojet 14 aero-modification impact cannot be sold, so it will be difficult to raise enough funds for you..." What Yin Xingjian said is indeed true. The turbojet 8 is the engine of the H-6, but the navy and air force cannot buy a few of them every year. The H-6 is not like the B52, which can install 8 engines per aircraft, so the entire Haofa Group has a disadvantage. ??Without the funding for the Turbofan 9 project, it would have been difficult to pay wages in the past two years. Mr. Yin, this report was actually summarized after I asked Minister Zhang Zhenhua to ask Mr. Chang Haonan of the Turbofan 10 project and based on his opinions. ?Ren Bingda used the method Gao Ning used to convince himself before Make full use of Chang Haonans golden brand. When you reach their level, you basically know what amazing achievements Chang Haonan has made in the past year or so. ? almost single-handedly reshaped the pattern of Chinas aviation manufacturing industry. It can be said that everyone in the entire aviation industry system is reaping the dividends brought by Chang Haonan to some extent. Chang Haonan Sure enough, Yin Xingjian, who just said "I will never agree", changed his expression and picked up the report on the table again. Obviously, he did not know that Chang Haonan had a real say in the reorganization process of the Aviation Industry Corporation. So there is still a fierce battle between heaven and man in my heart. Chang Haonans official identity is the general manager of Torch Group, a member of the 973 project expert advisory group, and the chief designer of Turbofan 10. It is not the direct superior of Haofa Group. ??If something goes wrong, it is definitely not Chang Haonan who will take the blame. However, judging from the experience of the past period, the other party can be called a leader in the industry, and it can revitalize any industry it enters. Even so...its a matter of money... The balance in Yin Xingjian''s heart was jumping left and right near the equilibrium position, and even he himself didn''t know which choice he was inclined to make. ?At this time, Ren Bingda just added the last chip in his hand: In fact, there is no need to worry about the funding issue. The foreign exchange quota that was originally planned to be used for the localization of Turbofan 9, now only needs to use a small part at most to appease Rolls-Royce. The remaining money, plus a little more, should be enough to complete my plan. ?Such a confident and decisive statement made Yin Xingjian stunned for a moment: Even if Rolls-Royce doesnt open its mouth, their asking price in the engine field is still very high. Whats more, if you want to transfer technology, it will probably be an astronomical figure..." ?Ren Bingda shook his head: "Mr. Chang has considered the affordability of our group before, so he specially set the target range this time. In the past two days, I selected an inconspicuous and not difficult product from their product series, but it happened to be Its a blank model in our country. The M250 engine is divided into two series: turboshaft and turboprop. Depending on the model, the output power ranges from 184kw to 331kw. It was originally an Allison model. After being acquired, it became a Rolls-Royce product. Obviously, he had done a lot of homework before coming: The most important thing is that before this, Rolls-Royce has authorized this model to many countries for production, so the technical barriers are relatively low. At this point, Yin Xingjian has no reason to continue to oppose. He just asked Ren Bingda to control the risks, and there must be no recurrence of the situation where the turbofan 9 has been delayed for almost 30 years after its introduction but has not yet completed localization. ?A few days later, the two British directors of Ciro Company, George Breen and Adam Whittle, finally received a reply, inviting them to go to Haofei Group the next day to discuss relevant matters. Originally, according to the custom of leading the British, it would be absolutely impossible to agree to such a thing as informing the meeting on the next day in the evening of the first day. However, the status of the two parties was now reversed. It was the two of them who had something to ask for, so they had to recruit a few people and rushed to the meeting place designated by the Chinese side early the next morning. ??The team led by Ren Bingda and Gao Ning specially arrived at the venue at the right time. ??The British people on Luoluo''s side had obviously been waiting inside for some time. Manager Ren, you made us wait for a long time this time. ?After staying in China for more than a year, George and Adam can speak some slightly blunt Chinese. They obviously want to take a preemptive strike and suppress Ren Bingda''s momentum. Huh? Ren Bingda made a special appearance of surprise: I remember the reply said that the meeting was at 9:30 in the morning. Its only 9:27 now. Dont be so anxious... This sentence made the two British people who were angry just now get stuck. After hesitating for a long time, they sat back down again. After all, for meetings like this in the past, people from China would arrive early. ?The period before the official start of the meeting is mainly about setting the tone, and Luo Luo will obviously suffer some losses because he failed to calm down. After a brief interlude, the two parties quickly took their seats. ??This meeting was initiated by the British side, so the Chinese side who accepted the invitation were not in a hurry to get to the point. ? No matter how George and Adam made insinuations, Ren Bingda and Gao Ning pretended not to understand, and went in circles to review the friendly relations between the two parties and the huge market potential of China''s aviation industry. Manager Ren, lets talk about the procurement of components and technology transfer for Spey engine next year. Even the British could not withstand this kind of gameplay and got to the point first. Next year? ??Ren Bingda adjusted his sitting posture slightly, looked at Gao Ning next to him, and then said: But, we have no further plans to invest in the Sibei project next year? ?The tone was so calm and the attitude was so matter-of-fact that it even made the British person opposite him feel that he had lost his memory. But...but you clearly said before that this project will last at least 3-4 years? ?George He originally thought that Huaxia had been delaying because he wanted to get a better price, but he didn''t expect that people would just flip the table when they came up. Well...we did say that. ?Ren Bingda moved his upper body forward and rested on the table: But last year it was you, Rolls-Royce, who refused to sign a four-year technology transfer and supply contract at once, and had to sign it once a year based on the actual situation. The actual situation now is that we no longer need you to provide SPEI MK202 technology. Hearing this sentence, George was basically in a state of confusion. "this" ??The reason why China did not agree to the four-year contract was that it required that all technical data related to Spey MK202 must be transferred within four years. But he and Adam hoped to procrastinate for a few more years so as to squeeze out more profits. ?According to their estimates at the time, if China relied entirely on itself, it would take about 8-10 years to completely complete the localization of Sibei. So it is absolutely possible to earn stable money for two to three years more than the original plan of 4 years. The two of them were once complacent about this decision. As a result, now, he has shot himself in the foot. Even so, you already have a model of aircraft that uses our engines, related components, and after-sales services... Adam''s response was obviously faster and he immediately switched the topic to maintenance and security. ?However, Gao Ning, who had been silent just now, added the final blow: Well, we have basically completed the domestic production of key consumables for the Spey engine, and have made some improvements to the unreasonable aspects of your original design. Now, even if there are new aircraft to use this kind of engine, the components you provide no longer meet the technical requirements of the improved version. (End of this chapter) Chapter 486 In the past, people asked for things, but now people ask for things from me. Chapter 486 In the past, people asked for things from others, but now people ask for things from me. As soon as Gao Ning said these words, the entire conference room fell into silence almost instantly. Adam Whittle''s facial muscles twitched slightly, and he opened his mouth several times, but was unable to say any effective words. On the one hand, I was extremely shocked. On the other hand, I was completely unprepared for this before coming. The reply was originally received yesterday afternoon saying that they could hold a meeting and negotiate. At that time, they thought their price reduction strategy was successful, so they came over without thinking too much. result In short, after George, who was sitting at the top of the British side, heard this statement, his first thought was Are the Chinese people bluffing? ? A year ago, you still had 30% of core components that could not be produced domestically. You had to replenish them with second-hand products from Rolls-Royce''s inventory, and you were also prepared to pay high prices for the production technical data of these components. ? It turns out that less than 11 months have passed, and now you are saying that you have even produced an improved model? Can you be reasonable? And its an improved model that we cant even supply? Lets not talk about how Chinas technical level has jumped three feet high, and it has completed the localization of Sibei. ??Just say, if that''s the case, why did you set up a joint venture after going through this big business in the past two years? Are you kidding us brothers? But if you think about it carefully, it doesnt seem like it. ??The bluff is just to pay back the money in the end. But the other party''s attitude is not called overturning the table, it is simply smashing the table. ???Everyone on Luo Luo''s side looked at each other in shock, and Haofa''s side had no need to continue speaking. They all waited for the other party''s response with a fun attitude. ??These people sitting in the conference room are all veterans who have been responsible for negotiating with Luo Luo in the past two years. They are very popular with the British. Now that they finally have such an opportunity, they will not let it go easily. ?After a while, George, who finally recovered from the shock, began to rack his brains to organize words. Aeroengine is a complex system. If the overall design is not fully considered and some structural changes are made rashly, our company cannot guarantee the consequences..." Obviously, without any psychological preparation, all he could think of was this old-fashioned method. ?This reply made Ren Bingda laugh directly: Mr. George Breen, I need to remind you that your company has not provided after-sales support services for the aero engines purchased by us..." ??The introduction of Spey was a confusing matter made in a special period. Let alone Rolls-Royce, there are many things that China cannot explain clearly. ?This is not a good thing originally, but at this time it can be used as a mockery... ?Sure enough, George immediately lost his temper. Gao Ning next to him continued: Actually, Mr. Breen, if possible, we dont want to spend additional resources on design improvements for an old model engine like Spey. To be honest, this matter is still your Rolls-Royce problem. Our problem? ??The two people''s verbal bombardment has confused Luoluo, who was already at a loss. "Of course, twenty years ago, when we first wanted to introduce a turbofan engine, the data given by your company in the promotional materials was that the thrust-to-weight ratio could reach 8. Only then did we prepare to use Sibe as an engine at the same time. The power of future fighters, attack aircraft and bombers. ? Gao Ning took advantage of the victory to pursue the victory and began to continue to settle old scores: "As a result, after our senior technical personnel went to your country for personal inspection, they discovered that your promotional materials were extremely watery. The real thrust-to-weight ratio of Sibei was only 5 levels. Due to the insufficient afterburning speed, there was no way to Working in an environment exceeding 1.8 times the speed of sound has led to a significant narrowing of installation targets. Not to mention the fighter, even the power of the fighter-bomber is very weak, so we have no choice but to make limited improvements on the original basis..." In a word, we are all wiping your butts. ? Even though George Brin could no longer wrap his head around it, he still instinctively felt that something was wrong. In the mid-1970s, he had not yet graduated from college, so he had no way of knowing about propaganda water injection. ?But even if this is the case, we have been using this model of Spey for 20 years, so it is impossible for the problem to be discovered suddenly this year. ??Furthermore, this is not directly related to the fact that you established a company last year and abandoned the companys business this year. ??More importantly, he found that the entire conversation was already developing in an uncontrollable direction. He is completely being led by the nose. ??Although Luoluo is a supplier of Party B, it is also Party B who treats others as superiors. When has it ever encountered such a situation? Therefore, George immediately decided to ask for a prorogation of the meeting to avoid the spotlight. By the way, take some time to review what happened. ??Such a normal request is naturally impossible for China to refuse. What''s more, the other party is the one who is anxious now. If time continues to delay, it will only become more and more disadvantageous for them. After the meeting was adjourned, the British staff quickly left one after another and went to have a small meeting outside. Gao Ning finally smiled happily after watching the last person leave the room: TMD, it was so enjoyable just now! Ive wanted to spray them like this for a long time. I never had the chance in the past, but I finally got the chance this time! As the deputy director of the production department who is engaged in technology, he often has contact with people from Luoluo in his daily work, and he is even more angry than Ren Bingda. After all, the latter generally only need to deal with the other party''s middle and high-level personnel, and these people at least still have some concerns about face. On the contrary, ordinary British employees who were sent to the site often behaved with arrogance. ??Although Ren Bingda next to him was quite elegant, he couldn''t help but nod: Yes, it seems that the saying imperialism is a paper tiger is not only applicable on the battlefield, but also valid in the shopping mall. Before, we were all very majestic, but now that we have a little bit of leverage, we will immediately back down. The venue was filled with a happy atmosphere for a while: If future negotiations are like this, then I will have to come back and work for another 10 years after I retire. The good days of these foreign companies making money here are coming to an end If you want to say it, Mr. Chang is indeed very powerful...the general direction of this negotiation is what he has given..." Hey, you said that Turbofan 9 can be improved with the technology of third-generation aviation engines. I heard that it is also because of Mr. Changs matchmaking..." The other side. Compared to the joy and excitement on the Haofei delegation side, the atmosphere on Luo Luo''s side was much heavier. After leaving the venue, George wanted to find a place to smoke a cigarette to sober up, but was quickly approached by Adam who followed him out. George, do you feel like somethings not quite right? Adam also lit up a Marlboro and leaned on the railing beside the rooftop. Of course its not right, and its very wrong... How could the Chinese solve those technical problems on their own in such a short period of time? ?George put the lighter into his pocket, exhaled a long stream of smoke and said: "When we had our first contract negotiation last year, I personally saw the technology transfer list they listed. They were basically the most core and most difficult parts. Even if I gave them all the technical information at that time, I would still have to chew through it. It took two or three years...but looking at their posture, it doesn''t look like they are bluffing..." So, George, I have a wild guess. Adam''s hand holding the cigarette was waving in the air, looking determined. What guess? ?At this time, George can only act as a living doctor. I think that all this may have been planned by the Chinese people a long time ago. From the very beginning, it was a trap to lure us in. I have read their art of war book. What is this called... Go up to the house and take out the ladder! Adam put on an air of "No one knows Sun Tzu''s Art of War better than me", and became more and more enthusiastic as he spoke: Think about it, they just presented an aircraft engine at the air show last year with performance comparable to that of the F404. Since they have such technical strength, how could they not understand an old model like Spey for 20 years? "So I guess that they have probably been able to produce all of Sibei''s components for a long time. The reason why they signed a contract with us last year was to lure us into entering the Chinese market again, including this joint venture, and also to increase our sunk costs. ! Now that we have invested money in Huaxia and established a joint venture team, they suddenly announced that they would no longer sign subsequent contracts. They must want to get something else from us..." After explaining the fact that the donkey''s lips are not the horse''s mouth, it actually makes people feel very reasonable. Then...we absolutely cannot compromise with them? George asked tentatively. He felt that the amount of information he had received this morning was a bit excessive, and he almost lost his ability to think. George, what are you thinking about? ??Adam looked like he had seen a ghost, pulled George close and whispered: "Anyway, the two of us are the supervisors of Huaxia. We were the two who signed the contract at the beginning. It is still the two of us who have been responsible for connecting with Huaxia this year. If the company''s investment in Huaxia is watered down, Piao, who do you think the company will let take the blame? ? George was just stimulated and his reaction slowed down. He was not really stupid. He naturally quickly came to the conclusion: The two of us? Thats right. Adam nodded, So, no matter what, we must find a way to continue this business and Siro Company, even if its just on the surface! But they have just said that they will not continue to purchase. This is no longer a matter of negotiating terms..." ? George has worked in several third-world countries such as Brazil in the past, but those were markets where Luo Luo had an absolute advantage and had the right to say the same thing. How had he ever seen this kind of table-breaking negotiation model? On the contrary, Adam saw it more clearly: If there is really nothing to discuss, they can just write back and say no. "Since we have been called here, it means there is still room for maneuver..." After some explanation, Georges IQ finally regained the high ground. But he still has some concerns: What you say makes sense, Adam, but if we make concessions first, then the subsequent conditions will be difficult to negotiate... Adams answer was almost a no-brainer: The things given out belong to the company, and the wages we get are our own. We can give in to conditions and other things..." But even if we agree to something, the company may not agree? Is this... ?This question also made Adam find it a bit difficult, and finally he had to answer bluntly: "I think since they have laid out such a big plan, they have probably carefully considered the conditions. Why don''t we listen to it first after we go back?" "Moreover, the headquarters doesn''t know what the actual situation is. We can also modify the report a little bit. In any case, China is indeed a market with huge potential. I don''t think the higher-ups want to give up so casually... " (End of this chapter) Chapter 487 Play hard to get Chapter 487 Play hard to get As the saying goes, nothing is difficult in the world, as long as you are willing to give up. After quickly excusing themselves, George and Adam''s thoughts were as fast as light. ?Of course, this kind of content involving private transactions is definitely not easy to put on the negotiation table and put it clearly. The main reason is that the negotiating team brought by Luo Luo is not very good. They were just selected temporarily last night, and many of them are not close confidants of the two of them. So some content cannot be allowed to be heard by these people. Hence, after the negotiations were restarted, their focus obviously did not continue to be on the Spey project, but instead began to ask sideways what China''s needs for aviation power would be in the future. ??The people on the Huaxia side are all veterans who have experienced many battles. They saw that Luo Luo''s attitude softened, but they still refused to get to the point, so they probably guessed what was going on. In short, after some back and forth of mutual hints, although the two sides did not reach a final agreement, they still exchanged views candidly and established a corresponding working mechanism, laying the foundation for the next more in-depth negotiation. After the meeting, Ren Bingda and Gao Ning frankly invited George and Adam to have dinner at a high-end restaurant in downtown Haojing. The British take status and class very seriously. Normally, this is certainly not an advantage. But for this situation, it can save a lot of things. It is common for the leaders of the two parties to have a meal after a meeting is over, anywhere in the world. Just in different cultures, the specific implementation will be different. ?For example, in China, it would look strange if you dont take a few people with you to eat. Everyone knows what kind of insider trading you are going to do privately. For British people, this is quite normal. ??No matter what the status or status of your entourage is, they should not appear on the same occasion. ??And if you get to the United States, you probably have to go to an island and submit a certificate of nomination... ? Gao Ning went to the Workers'', Peasants and Soldiers'' University, so his English level is average. He can barely understand the articles, but he can''t communicate well. ??However, Ren Bingda is a genuine British student who graduated from the University of Birmingham and speaks English very well. If there is no identity requirement in a formal occasion, then there is no need for translation at all. Therefore, after arriving at the place, the latter quickly signed the order and served good wine and food to the private room reserved for four people. ?Having dealt with the British for a long time, he already knew this group of people quite well. Although they behave like decent people during working hours, as soon as they get off work, they all turn into drunkards. The key point is that I am greedy for wine, but my drinking capacity is very poor. For Ren Bingda, who had talked with Lao Maozi, this was as simple as going back to play on novice difficulty after getting the platinum achievement. The wine table is often a good place to talk. This point cannot be changed in ancient and modern times, both at home and abroad. Sure enough, after drinking a few glasses of high-quality foreign wine, the two British people talked a lot. "Mr. Ren, Mr. Gao, Sibei...can you really make all of Sibei''s components?" ??The privacy of this private room is quite good. Coupled with the smell of alcohol, George, who is also a technician, asked questions that he couldn''t understand. ?However, for the Hao Fei duo, Gao Ning, who was not good at English, was mainly holding back the drinks, so Ren Bingda, who was in charge of speaking, was relatively sober. He pretended to ponder, and then shook his head after a moment: Thisactually, I dont know much about it either. "To be honest, our group originally wanted to continue the business of Sibei. However, two months ago, we suddenly received instructions from our superiors that the foreign exchange originally planned to be used for importing Sibei components and technology introduction All quotas have been cleared and we are preparing to switch to domestic production. We are still confused now and are just executing orders..." Oh? Is there such a thing? Originally just looking for a topic to jump into and satisfy his curiosity, George seemed to have caught some interesting content: But before replacing components, shouldnt there be a round of installation testing first? This should be your responsibility, right? Heres the problem ??Ren Bingda quickly filled the wine glasses for the other party and himself, making a sad look: What you are talking about has not been done yet. We are also worried that there will be problems with domestically produced parts As he spoke, he also mentally apologized to Chang Haonan, whom he had never met before. ?Yam Bingdas acting skills are actually a bit stiff. If it were left to normal, there might be some clues. But the light inside the box was already dim, and the other three people were already at least 40 to 50% drunk, and their minds were not spinning as fast as usual. ??More importantly, George and Adam have stayed in China for nearly a year and participated in various social events. They consider themselves to be experienced in this field In this era, various places are doing almost anything to attract investment. Foreigners, especially foreigners like them who come here with capital, are basically the targets of being kneeled down and licked wherever they go. With such a mentality, many people are not wary of them. ?Some secrets dont even require others to pry out, but people on your side take the initiative to reveal them... In short, living in such a matching environment for a long time has caused the two people to gradually integrate into the segmentation. ?Some people dare to say anything, and they both dare to believe everything. So after hearing Ren Bingdas complaint, Adam quickly answered: In this case, our cooperation must continue... As you said, if there is a problem with those new parts, shouldnt we use the stock parts we provide to support the situation? We can apply to the head office to erase part of the origin of these pieces, so that you can use them as domestically produced... In the past year in China, he has also been in contact with many foreigners who are also doing business in China. He knows that many Chinese companies will repurchase imported products and disguise them as domestically produced in order to meet the requirements of localization in some tenders. rate requirements. ?Of course, some people do the opposite, disguising domestic products as imported goods and selling them at high prices. So it was natural for Adam to come up with this idea. ?Ren Bingda and Gao Ning looked at each other. Obviously, two Englishmen have taken the bait. "It''s not a question of whether we want it or not, Mr. Whittle..." As soon as the former spoke, he was interrupted by Adam waving his hand: In private, just call me Adam ?Ren Bingda nodded: "Mr. Adam, you also know that our country has very strict controls on the use of foreign exchange. Without quotas, we have no way to trade with you..." "yes." Gao Ning looked troubled, but then he started to make excuses: "Moreover, the risk of doing this is too high. The order to use domestically produced parts is clearly notified by the above. We will act according to the rules. Even if something goes wrong, we can get rid of the main responsibility. But if we continue to use the parts you provide, If we are discovered, we two brothers will have to bear the responsibility..." Ren Bingda next to him looked indifferent: What you said is wrong. If something goes wrong with domestically produced products, wouldnt users be looking for us? Let me see, Adam is right. We need to find a way to continue this business. Besides, the Siro Company now relies on this import and export business. If the contract is stopped, the company will have to go bankrupt. It will not be easy for the two of them to explain to the company, right? "We brothers still have pensions after all. If they are fired by the company because of this matter, it will be troublesome..." ??He deliberately interspersed Chinese and English between his words, and looked up to the opposite side with a concerned tone: Am I right? "this" ?Although Ren Bingdas tone seemed to be caring about his friends, the content he said always sounded like Madam, you dont want to lose your job, right? I have an idea. ?George was quick to think and quickly brought the topic back on track. No matter how you say it, Ren Bingdas meaning is correct This business can be done by China either publicly or privately, but he and Adam have no way out and must go on. You can find another name to apply for a foreign exchange, continue to do business with our Rolls-Royce company, and then allocate part of this fund to continue the procurement of the Sibei project. In this way, you dont have to worry about users coming to make trouble, and we can continue to maintain the normal operations of Xiro Company, how about it? Ren Bingda said so much, waiting for the other party to take the initiative to make such a request. ?Of course, he couldnt agree right away. Well...Im afraid its hard for the two of us to make the decision..." He said and glanced at Gao Ning. The problem of misappropriating foreign exchange funds privately is even more serious... The latter was already responsible for playing the fool, and now he was even more unceremonious: We cant just take risks and get no benefits at all, right? The meaning is obvious. Since you took the initiative to mention this content, is it not too much for us to add some conditions? But Gao Ning also drank a little too much at this time, with that tone and that accent. To anyone who looks at it, it would seem like he is asking for a bribe. George and Adam opposite were naturally not surprised either. The two of them were immediately confused. What do you mean, you have to give me some rebate? Fortunately, Ren Bingda was still sober, so he quickly added: Gao Ning is right, you Luoluo need to come up with something real, so that both of us can explain it to our superiors... Otherwiseotherwise we wouldnt have to wait for another year or two, at least we wont make any mistakes Something real? ?George also felt at this time that he seemed to have walked into a trap. But at this point there was no turning back, so I had to put down the wine glass in my hand: What do you want? "Um" ??Ren Bingda drank half a glass of wine by himself, held his forehead and pretended to think for a while. While Gao Ning continued to perform next to him: It cant be a too complicated model, otherwise by the time the technology is fully understood, both of us will have retired long ago, and all the credit for our hard work will be fed to others But it cant be too simple, otherwise the superiors will not pay attention to it..." About a minute later, Ren Bingda finally raised his head: I heard that your company has a small turbine engine called M250? (End of this chapter) Chapter 488 Preparing for a drone Chapter 488 Preparing for drones For Rolls-Royce, the M250 is just an unexpected bonus they received when they acquired Acheson. ?The basic design of this engine was completed as early as the 1960s, and it had been transferred to several countries for license production during the Acheson period. ?Although the update cycle of turboshaft and turboprop engines is not fast, and this model is not obsolete until the 1990s, this gadget with a maximum output of only 331kW is not a core technology in any case. The current bid from China is quite reasonable, and it is a market with huge potential. Rolls-Royce made the right choice within a few days. Taking into account the previous experiences and lessons, George and Adam no longer dared to mention anything that was discussed once a year, but honestly signed a three-year technology transfer contract. ?Of course, the British are not philanthropists. ?They specially added a clause in the contract: In China, this model can be used in any way, but if it is sold to a third country, a special export license fee must be paid to Rolls-Royce for each transaction. I can only say that it is a big company with rich experience. In fact, this is the template for Rolls-Royce''s technology licensing contract, which is a must for any authorized object. Since the default fee ratio is really not high, neither Rolls-Royce headquarters, George and Adam, nor Ren Bingda from China took it seriously when signing the contract. ?No one thought that this clause would actually come into play one day. However, not too many years later, Rolls-Royce will thank its predecessors who set this template. Lets go back to Shengjing. ?Before the formal negotiations, Ren Bingda had already reported his ideas to Chang Haonan through Zhang Zhenhua. M250 series engines In fact, the latter himself did not have too in-depth research on the type spectrum of this type of light aviation engine, so he took the information sent by Zhang Zhenhua and read it for a long time. ? This is a light turbine with numerous sub-models, and its targets are determined to be the B17 turboprop model of the M250 II series, and the C10 turboshaft model of the same II series. Both models use the same 6-stage axial flow + 1-stage centrifugal compressor. The maximum output power is adjustable between 294-331kw according to different lifespans. Mr. Chang, the II series is the most balanced choice for General Manager Ren and them in terms of cost, technical difficulty and performance after comprehensive consideration. ?Zhang Zhenhua saw Chang Haonan turning to the key point and quickly opened his mouth to explain: Although the III series and IV series are advanced, Rolls-Royce may not be willing to transfer technology, and the price must be high. Also, the turboshaft of the C30 series overlaps with the turboshaft 8 that our country has introduced a complete set of technology from France, and it does not meet the 300kw power level you previously requested. Obviously, he was worried that Chang Haonan would be dissatisfied with the model selection. Although the 300kW level was personally decided by Chang Haonan when the two met last time, in the process of technology introduction, there are many leaders who can''t move when they see advanced models, so it is safer to explain a few more words. Dont worry, I understand. ?Chang Haonan stretched out his hand and pressed down in mid-air, signaling the other party to relax: Model development is not about blindly pursuing the superiority of paper data, but should comprehensively consider the entire aerodynamic system and strive to build a complete aeroengine model spectrum from low to high. From this perspective, your groups choice is not wrong. Looking at Zhang Zhenhua''s cautious look, Chang Haonan sighed secretly in his heart. Even though the two met for the first time at the end of last year, the latter already had a high reputation in the aviation industry system. But reputation and power are two different things after all. ? Today''s Chang Haonan is already quite extraordinary just because of his real identity. ??Although Torch Group is small in scale, it is also a second-level state-owned enterprise directly under the Academy of Sciences. Its level is on the same level as Haojing Engine Group and Shengjing Aircraft Industry Group, which have thousands of employees. ?As the general manager of Torch Group, if Chang Haonan insists on rank, he can even hold a full-time position in the superior department. Its just that because he is too young and the de-administration of state-owned enterprises is being promoted, he is regarded as a low-ranking employee and has not yet been officially promoted. But the authority in his hands cannot be compromised at all. Not to mention that as the chief designer of the Turbofan 10 project, it is no exaggeration to say that he can directly mobilize the resources of half the aviation industry system. As for the personal connections with which I can speak directly to the Science and Technology Committee and the Science and Technology Committee, it is even more frightening. ? Ding Gaoheng and Song Jian behaved like two ordinary amiable little old men when facing Chang Haonan, but it does not mean that they behave like this in front of others. Most people have no chance of talking to them directly. In short, the accumulation of many identities has actually given Chang Haonan''s words and deeds a considerable influence. This is especially true for middle-level leaders in the aviation industry system like Zhang Zhenhua. ? Many times, Chang Haonans unintentional words or even a tone of voice can determine a project or a persons future and destiny. So, he had to start paying attention to his words and deeds. Especially in front of these subordinates. To say whether Chang Haonan likes this, it is not necessarily true. But whether he likes it or not, this is what happens. After receiving a clear positive evaluation, Zhang Zhenhua finally felt relieved. ?So he tentatively asked about another thing - ?Although Ren Bingda did not say it clearly, he still hoped that Chang Haonan could guarantee the prospects of such an engine. Although part of the funds from Turbofan 9 was diverted to other uses, although it was approved by the group leaders and there was no procedural problem, if the money was really wasted, Ren Bingda, as the initiator, would also be subject to some punishment. Some negative effects. ??The basic logic on China''s side is to unify powers and responsibilities. After all, this is a large amount of foreign exchange expenditure. It is impossible to completely select responsibilities just because of procedural compliance. Lao Zhang, I have made it clear before. ?Chang Haonan''s tone became slightly more serious: The models introduced this time cannot be preset for installation, so I cant guarantee anything here. He has a big chess game to play, so naturally he cannot agree to it directly The reason why we introduced such an inconspicuous model through Ciro Company is to prove the feasibility of the "aviation-engine first" route. ? And if you give a large number of models to a few models before the official introduction, you will be on the old path of "model traction" in the past. Even on the contrary, it proves that the path of model traction is correct. ?Wouldnt that be just shooting yourself in the foot? ?Seeing Chang Haonan''s determined look, Zhang Zhenhua did not dare to continue to struggle with this matter. ?He quickly changed the topic to turbofan 9A, reported on the installation progress during this period, and then left the former''s office. After seeing off Lao Zhang, Chang Haonan sighed softly, and after a moment of hesitation, he picked up the receiver of the red phone next to him. ?Although he said something tough, it was impossible for him to really ignore it. ?This model was introduced by him at his suggestion to the Haofa Group. If he just acted as a hands-off shopkeeper, wouldnt it be like starting with chaos and eventually abandoning it? ?After several transfers, the call was finally connected. Opposite him is Sun Huizhong, an old acquaintance of Chang Haonan who has been promoted to the chief designer of Guihang Industry. Sun Gong, its me, Chang Haonan. Chang Haonan rarely used this phone number, so he had to report his home address first. Mr. Chang? The person on the phone was a little confused at first, and then quickly turned into surprise: Mr. Chang, what are your instructions for calling us? We will implement them immediately! ??If people like Zhang Zhenhua and Zhong Shihong are just grateful and respectful to Chang Haonan, then the comrades in Guizhou Province are completely worshiping him. After all, when Guizhou Aviation Industry was almost desperate, it was Chang Haonan who injected them with a life-saving research fund in the name of a "Project 10 DSI Technology Demonstration Machine". ?The Instructor 9, which is currently undergoing intensive ground testing and preparation for flight, was almost designed by Chang Haonan and Sun Huizhong. ?Unsurprisingly, this will be the flagship model of Guihang Group for a long time to come. I cant talk about it, I just want to ask. At the beginning of this year, I should have mentioned to you about a medium-altitude long-endurance UAV. I wonder if Mr. Sun still remembers it? The M250 engine is mainly installed on three types of aircraftlight helicopters, primary trainers or medium-sized unmanned aerial vehicles. For the current aviation industry, the last one is obviously easier to implement and more practical. ? Even if PLA has no spare money for equipment, it can still export it. I have an impression, of course I have an impression! Even though there was a phone line between them, Sun Huizhong stood up: "It''s just that our group''s strength is concentrated on key research coaches 9. Therefore, currently we have only established a UAV flight control research laboratory in accordance with your previous instructions, recruited a group of graduates in related majors, and are doing preliminary planning. research." I wonder if Mr. Chang needs us to adjust the focus of R&D? Facing such a positive Sun Huizhong, Chang Haonan quickly replied: No, no, no, thats not necessary. You should focus on completing the Coach 9 first. Its test flight data is related to the design of the subsequent prototype of the J-10, and progress must be ensured. "I just want to tell you that I have a 300kW light turboprop engine here that can be used as power. I will fax the more detailed data in a while. You can use this power data as a reference during the pre-research process. to determine the size of the aircraft and other data. This is definitely an unexpected surprise for Sun Huizhong. After all, almost every model of China Aviation Industry has been worried about the engine. ?It is indeed rare that the engine is predetermined before the aircraft is even made. Okayokay! (End of this chapter) Chapter 489 Pulsating production line, structural upgrade issues of J-11 Chapter 489 Pulsating production line, structural upgrade issues of J-11 ?While Haojing Aviation Development Group and Rolls-Royce were negotiating the specific introduction agreement, Chang Haonan was not idle either. ?In addition to dealing with the many fragmentary problems faced after the turbofan 10 was transferred to formal research and development, he also spent a lot of free time going to the 601 Research Institute and the 112 Factory. On the one hand, he wanted to lick the flanker lady whom he had little chance to see in his previous life. On the other hand, it also helps them solve some application problems of TORCH Multiphysics software. As each trial user, especially the trial users of the Super Large Cup Professional Enhanced Edition, gradually passed through the initial learning stage, some unsatisfactory aspects of the new software were gradually discovered. ?This information will be fed back to the Torch Group headquarters in Beijing. However, as the person most familiar with the TORC Multiphysics software in the world, Chang Haonan will obviously be of great benefit to the subsequent software upgrades if he can go to the front line to check some actual problems in person. In the final assembly workshop of Factory 112, dozens of workers are climbing up and down around the assembly frame to complete the final assembly of major components of the four J-11s. He Gong, these are...the second and third batch of four aircraft? ?According to the agreement signed with Sukhoi last year, after the completion of three batches of large component assembly of a total of six aircraft, Factory 112 can officially open the "complete machine assembly line" and enter the next step of localization. "Yes, the original plan was to carry out the operations separately, but the final assembly of the first batch went very smoothly, so after communicating with experts from Sukhoi, we put the four aircraft in the second and third batches together for final assembly. " ?He Ming took Chang Haonan to the side of the plane that was making the fastest progress, and reached out to touch the pitot tube at the tip of the nose. The style of this assembly workshop is a bit different from what I saw in the J-8C assembly workshop next door... Chang Haonan took a few steps back as he spoke so that he could see the overall distribution of the aircraft''s final assembly area. Even though he was not proficient in the field of production management, he could still see that there seemed to be several different types of work being performed at the same time on the front, rear, left and right sides of the aircraft. ??Its just that the coordination between them is still a bit rough. Including the layout of tools and equipment and the allocation of personnel, there are some unreasonable issues, resulting in the assembly progress not looking very coherent. Soon, a familiar feeling emerged. How do I feel...this final assembly form is a bit like... Just when Chang Haonan was hesitating whether his judgment was correct, a familiar female voice behind him sounded: Its a bit like Factory 172 in Haojing? ?He turned around suddenly and found Yao Mengna wearing work clothes standing behind him. Senior sister? ?Perhaps because of the long-term stay, the other party even cut his previously long hair to ear length. ??Looking very capable indeed, but Chang Haonan almost didn''t recognize him for a while. "This final assembly model was developed by me and the team of final assembly engineers at Factory 172 when we were working on the JH7 in Haojing. It was during the time when we were working on the JH7, so you may feel that there are some familiar." Yao Mengna straightened her clothes, got between Chang Haonan and He Ming, stood closer to the assembly frame, and began to introduce further: "This method has two main features. In terms of space, it can operate in parallel in multiple areas, and in terms of time, it can coordinate assembly of multiple types of work. Theoretically, the production efficiency should be at least 50% higher than that of the past continuous moving production lines. 100%. Theoretically As a research dog, Chang Haonan quickly grasped the key points of this passage: In other words, the actual situation... ?Yao Mengna, who had been so proud just now, suddenly lost her energy. She put her hands on her hips and looked arrogant: How should I put it Assembling an aircraft from scratch is still different from previous upgrades and overhauls, and the complexity of the work involved is far higher than I expected. So after several rounds of adjustments, there will still be a problem of some teams waiting for assembly tasks when they are fully loaded, while other teams are idle waiting for assembly tasks. The overall efficiency has not changed compared with the old method of continuous mobile production..." In fact, the set of things Yao Mengna created is very close to the later concept of pulsating production line. ? And coincidentally, the pulsating production line in the previous life was first put into use in Haojing, and then extended to the entire aviation industry system. ? Its just that the level of computer hardware and algorithms in the late 1990s was still relatively limited, so it was very difficult to optimize this advanced production method. You cant say that either. He Ming, who had been silent just now, finally spoke: Actually, when we first used the new method to assemble the first two aircraft, the efficiency was not as high as the original continuous moving production model. "Now it has been much better after several optimizations, which shows that this method still has great potential. As long as we can continue to adjust it based on actual production experience, we will definitely be able to achieve the theoretical effect." ? ? ? "After all, we have only built six aircraft. , production matters cannot be rushed. ?He Ming''s comfort made Yao Mengna''s mood obviously improve a lot. Actually, I also tried to use the differential evolution algorithm developed by you and Sister Xu Yang to optimize it from a mathematical perspective, but... the effect was not good. ?Chang Haonan remembered that the last time he saw Yao Mengna, the latter still called Xu Yang Researcher Xu. ??The relationship between the two seems to have improved a lot during this time... ?He shook his head slightly to throw away the random thoughts in his mind, and then explained: "Although the differential evolution algorithm is advanced, it is not omnipotent. For this kind of discrete, integer, high-dimensional, large-scale, multi-constraint optimization problem, it relies heavily on the summary of problem characteristics and experience, and it is easy to fall into the trouble of local optimality. , in short, it is not suitable for application scenarios such as aircraft production lines. Hearing Chang Haonans sane analysis, Yao Mengna instantly became interested: Teacher...Mr. Chang, do you have a better way? In private, Yao Mengna still used to call Junior Brother Chang Haonan, which was considered her exclusive title. ??But in public, she is still relatively measured. Is there a better way? It may be some path planning algorithms, but it will take some extra time to study. You can try using an ordinary genetic algorithm first. The effect should be better than the differential evolution algorithm. ?Chang Haonan first gave some suggestions, and then added: My research in the field of control science and optimization algorithms is purely out of interest. Now the turbofan 10, the die forging press and the TORC Multiphysics software all need to be handled by me personally. I am afraid I wont have much energy to focus on them in a short period of time. He Ming, who had been an audience next to him, was immediately stunned by this piece of Versailles. ?Good guy, you did some random research out of interest and you crushed all your peers in the country and even around the world? Should you let others live? ?But Yao Mengna has long been used to it. ?She took advantage of the situation and changed the subject: Speaking of TORCMultiphysics, we recently encountered some difficult problems when optimizing the structure of the J-11. Structural optimization? Chang Haonan raised his head and looked at the huge semi-finished J-11 in front of him: How far have you achieved it? Yao Mengna took him under the main wing on one side of the plane and pointed to the innermost part of the wing: "According to the technology sharing agreement signed by both parties, Sukhoi has brought the first phase of structural optimization results to us. The difference reflected in the product is the addition of a pair of heavy loads with a maximum load capacity of 2,000kg on the innermost side of the wing. racks, increasing the total number of racks from 10 to 12. We plan to introduce this upgraded new airframe starting from the fourth batch, which is the aircraft assembled with low components. ? ?Due to structural strength limitations, the earliest Su-27 did not have a hardpoint designed at this location, which was originally very suitable for mounting large-size air-to-surface ammunition. In the previous generation, this problem was solved on the Su-27SM, but because the contract depth of Project 11 was far less than it is today, China did not use these two high-quality heavy-load mounting points until the introduction of the Su-30MKK in the new century. Now that the problem on the wing has been solved, the problem must lie in the central lifting body itself? ?Chang Haonan probably knew the optimization process of flankers, so he asked directly. Thats right. Yao Mengna nodded directly: "This is a problem that we and Sukhoi experts are struggling with. The available overload of the aircraft in a specific speed range will be reduced from +9G to +5G-+6G. Although it can be controlled by upgrading the digital fly-by-wire flight control. The impact range is minimized, but it is still a hidden danger. During the structural mechanics calculation of the J-11s wing-body fusion body, we tried many methods such as dynamic overlapping grids, dynamic unstructured grids, and non-structural overlapping grids. But either the generation accuracy is not up to standard, or the generation efficiency is too low, it will take several months, or the calculation time step cannot be too large, otherwise it will diverge..." Is there such a thing? The grid generation algorithm of TORCHMultiphysics was specially developed by Chang Haonan. ??However, the focus of the research at that time was to solve the mesh generation problem of the dirty model, and there was indeed no specific optimization for the structural mechanics/fluid mechanics composite analysis problem of this type of wing-body fusion body. When you encounter problems now, you should naturally be very attentive: Lets go and see the specific situation. (End of this chapter) Chapter 490 Progress of Project 11 Chapter 490 Progress of Project No. 11 Chang Haonans original intention was to go directly to No. 601 Institute. After all, Factory 112 is only responsible for production, and structural improvement is left to the research institute. ?However, Yao Mengna directly changed direction and took Chang Haonan to a small door next to the assembly workshop. "While we were producing the first batch of two aircraft, we also assembled an additional complete airframe to conduct some aerodynamic, structural and flight control tests for the comrades of the 601 Institute, in order to facilitate the docking with the production process. , so it was placed in the test workshop next door. He Ming explained as he walked. ?Now Chang Haonan finally understood why he met Yao Mengna here by such a coincidence. The latter should theoretically be linked to the research institute. ?After walking in the corridor for a few minutes, He Ming opened a small door that was not very eye-catching. Inside is a space slightly smaller than the general assembly workshop just now. This is what we renovated from an old workshop for Project No. 11. After the three of them walked in one after another, He Ming closed the door with his backhand and introduced at the same time: Originally, this place was planned to be used to produce the J-7 after surveying and mapping. Later, because the entire project was moved to the south, it has been idle. Later, it was used as a final assembly workshop for the J-8 for a period of time. "But because the overall design is too old, it is difficult to adapt to the production needs of new models. The previous plan was to dismantle and rebuild it as the second workshop of the J-8C. Later, I thought it happened to be close to the J-11 assembly line, so I used it to build it. Tested. As he was speaking, a plane suspended in mid-air appeared in front of Chang Haonan. To be precise, it is the shell of an airplane. Because even if the distance is not close, you can still see that places like radars and engines are all equipped with counterweights. ??Moreover, the color of the skin on the surface of the aircraft has also been changed from yellow to a slightly green color. It seems that you have put a lot of effort into this improvement plan... Under normal circumstances, it is not necessary to conduct this kind of structural testing simply by introducing a final assembly line. ?For example, in India, the static test of Su-30MKI was completed in Russia. At least there is no need to do it so early. ?For example, the static test of the J-6 was completed when preparing to build the J-6. Because the final steps of this kind of test are to destroy one or even multiple complete aircraft, they are very valuable combat resources for the Chinese Air Force, which currently seriously lacks immediate combat capabilities. ?In the last generation, the J-11''s static verification machine only began to be put into use after entering the new century. Now, the action is obviously much earlier. According to the path of production while improvement we have set, the first three batches of six aircraft, except for the wingtip pylons, are no different from the Su-27SK aircraft we imported before, He Ming explained from the side: "The 24 single-seat aircraft from the fourth to sixth batches, and the first batch of four two-seat aircraft, will begin to use the upgraded new body that Yao Gong just said, and the performance will be slightly better. The most important thing is that it has The N001M radar in surface-to-sea mode has limited surface-to-sea strike capabilities. Equivalent to the Su-27SM and Su-30 from the original factory in Komsomolsk? ?Chang Haonan turned around and confirmed. The basic model of the Su-27 does not have any ground attack capabilities except rockets and iron bombs. In fact, it is a complete waste of the huge bomb load brought by the Flanker. The J-10 does have multi-purpose capabilities, but its size still severely limits its performance. ??If a true multi-purpose fighter can be obtained a few years in advance, it will be a huge benefit to the Air Force''s combat effectiveness upgrade and the transformation of its tactics. ?Of course, the price is that the number of JH-7s definitely does not need to be that many. ?But its a good thing. Haojing already specializes in large aircraft. It would be too wasteful to use the production line to build fighter-bombers. "Yes, there are a total of 34 aircraft in these six batches, which is also the entire quantity we produce using 100% Russian components. We will gradually adopt serial assembly production later, and gradually transition to completely domestic production except for the power system." Project No. 11 It is a contract between China Aviation Industry and Sukhoi and has nothing to do with Rulika-Saturn, which makes the engine. But when it came to this, He Ming paused for a while, and then added: Of course, after Mr. Changs turbofan 10 is completed, even the power system will be solved. By then, the third-generation fighter jet will be fully domestically produced..." You just said that in addition to the power system, small things such as aircraft fasteners can also be localized? ?Chang Haonan noticed some details mentioned by the other party. In the aviation manufacturing industry, high technology may be hidden in every detail. Aircraft fasteners are inconspicuous little things like bolts and rivets used on airplanes. However, it is inconspicuous, but its technical content is not low. ?Furthermore, there are many types of fasteners used on an aircraft, and the specific performance requirements and materials used are very different. In addition, there are no shortcuts in materials and process issues, resulting in very slow research and development. ? In the last generation, and even until about 2020, China imported a large number of aircraft fasteners for production every year. "Can." He Ming, who had never experienced any of this, nodded naturally: These are all part of the technology sharing clauses in the contract. Correspondingly, many Russian technologies that were previously on paper will also use our resources, mainly computer resources, for further development. While chatting with He Ming about the progress of Project 11, Chang Haonan briefly greeted several researchers along the way and walked quickly to the plane. Then he raised his head and looked carefully at some details on the plane. Although I cant see much clearly, I can clearly see that there are a set of bolts on the innermost side under the wing, as well as the corresponding electrical interface. Furthermore, it is also a two-seater model. In other words, it is even a real Su-30 airframe after the first round of upgrades. In the last generation, China did not introduce and produce the two-seat Su-27UBK or Su-30. The J-11BS, including the subsequent J-16, were all independently developed based on the J-11B. ??Although Project 11 on this timeline is completely different from its previous life, Chang Haonan was still a little shocked that a complete version of the Su-30 was built in 1997. You should know that all the "Su-30" used for flight performances in the early years, even the first batch of Su-30MK exported to India, were actually directly painted with Su-27UB... Is my influence already so terrifying? ?Although Chang Haonan secretly feels that this matter has something to do with him, he is still a little surprised by the progress. You should know that after the J-8C was successfully finalized, Chang Haonan returned to Shengjing several times for the turbofan 10 matter. Before that, he had not directly participated in the No. 11 project. If such a project can produce such a huge change because of him, it will undoubtedly mean that it is one step closer to the goal at the beginning of the rebirth. Is this body the two-seater model we are going to assemble? Thats right. ?He Ming nodded: It was extra shipped over from Komsomolsk for research. It is also a typical example of implementing the Russian technology that remains on paper as I just mentioned. We plan to call the single-seat model J-11A and the two-seat model J-11AS for aircraft in this technical state. Starting from the seventh batch of aircraft, the aircrafts structure and avionics equipment will be further upgraded. "This airframe is prepared for the second round of improvement plan. First, it is to eliminate the structural weak area of ??the central lift body. Second, it is to upgrade a larger proportion of composite materials and lithium aluminum alloy to reduce weight. Third, it is to completely replace it with domestically produced ones. modernized airborne equipment and fully compatible with domestic ammunition systems. Just when He Ming was introducing this, Yao Mengna, who had just walked around to the other side of the plane, came back holding a laptop in each hand: Mr. Chang, I brought the softwares operation log and results. (End of this chapter) Chapter 491 Wont you change it yourself? Chapter 491: Wont you change it yourself? ?For large tasks such as whole-machine aerodynamic simulation or structural simulation, the real calculation process must be completed on a supercomputer. But the saved log files can still be seen on the PC used as the input and output terminal. These days, many terminals and servers still use batch FTP to connect to each other, which only captures data once a day, rather than real-time linkage APIs. ?Of course, because the computing speed of the server is relatively limited, it does not appear to be very inefficient. We have encountered basically the same troubles mainly in two directions of research. ?Yao Mengna put the two computers on the table, straightened her messy hair a little and began to explain: One is what I just said, the computational structural mechanics problem of structural analysis of the body part. ??As she spoke, she tapped a few times on the keyboard of one of the computers, entered an account, and called up a series of calculation results. Then he turned to the second computer and performed a similar operation: Another thing is that we are also studying the problem of airflow interference when the aircraft drops large-sized suspended objects. "In previous wind tunnel tests, it was found that some ammunition, especially some cruise ammunition with relatively strong lift, will not immediately free-fall after the whole body formed by them and the wing is destroyed, but will move upward and damage the wing. , we hope to solve this hidden danger before the seventh batch of aircraft is put into production. The early Su-27 basically did not consider ground attack, did not need to carry any large ammunition, and did not have external auxiliary fuel tanks, so there was no need to consider such issues. Hence, when developing multi-purpose aircraft on the same platform, some strange problems will arise that are easily overlooked. Let me take a look Chang Haonan came to the first computer and bent down to carefully check the program''s running log. He Mingze, who was following behind, moved a chair very appropriately and placed it behind Chang Haonan. Mr. Chang, please sit down first. A few seconds later, when he realized something, he brought a second picture to Yao Mengna and placed it next to Chang Haonan. You used hyperboloid structural mesh and volume structural mesh... Speaking of which, your modeling level is very high. The geometric modeling process only took a few days to complete? Geometric modeling processing is the prerequisite step in the mesh generation process. In 1997, the main problem faced by most computational fluid dynamics and computational structural mechanics simulations around the world was actually the lack of a mature application tool from CAD models to surface structure mesh generation. For existing mesh generation tools, for some models with slightly higher accuracy, it often takes about 6 months or even longer to complete the entire generation work. ?For example, the simplified model of Boeing 747LCF took 4 months. The V22 Osprey took more than 9 months. And from a later perspective, it was clear that there were design flaws. In comparison, geometric modeling that takes several weeks to a month is not a big problem and is completely acceptable. But for TORCMultiphysics, the mesh generation process is generally shortened to 1-2 months, so the speed of geometric modeling processing seems a bit slow. ? Its just that Chang Haonan never had time to focus on modeling, and always used Dassaults software packages directly. The engineers from Sukhoi brought a new modeling software called KOMPAS. I slightly adjusted the interface compatibility of TORCHMultiphysics so that it can directly connect to the Kom format project files. Originally, it was just to save trouble, but I found that this modeling method is very suitable for our software, so I have been using it ever since. Although this is not the main problem to be solved today, Chang Haonan still paid a little attention. ?Mao''s electronics industry has stagnated for nearly 10 years and has gradually fallen behind. However, when it comes to software and algorithms, it has not fallen far behind. ??Although the market is not big enough, there are few hits (except for telegram), but there are definitely some unique skills. After a short interlude, Chang Haonan once again focused on the grid generation log behind. The number of sub-area grid blocks is 253 The number of grid cells is 133 millionits really a lot, the complexity is very high Grid assembly When he saw this last step, he quickly discovered something was wrong: Huh? According to the normal process, TORCMultiphysics should automatically "assemble" these 253 grid blocks together through inter-grid interpolation in the overlapping areas. But the log shows that the software got stuck at this step. To be precise, it got stuck during the data capture process before this assembly step. Too much data? This is the first possibility that Chang Haonan thought of. However, the logic of the grid generation algorithm he designed specifically reduces the computational complexity for large models. In other words, no matter how complex the model is, the calculation time will be extended indefinitely, and it will not lead to problems such as memory usage. In short, it is impossible to get stuck here. Have you tried manual assembly? Chang Haonan asked after thinking for a moment. I tried it, but the other parts are easy to say. When it comes to the central lifting body, even if there are only minor changes in the sub-region grid, the assembly input file must be modified accordingly. If it is all done manually, it will probably take..." ?Yao Mengna raised her head slightly and calculated: It takes about 60,000 lines of code to be entered manually 60,000 lines of code may not sound like much, but considering that TORCH Multiphysics cannot be automated, parameters must be adjusted manually, which definitely involves a lot of calculation and conversion issues. Whats even more troublesome is that, as a new software, there are relatively few people who can complete this process proficiently. In short, it is obviously not something that can be completed in a short time. ?When Chang Haonan tested the software before, it was impossible to use this model with hundreds of sub-areas and hundreds of millions of grid cells to test due to tight time and heavy tasks. In fact, since TORC Multiphysics was released for such a long time, judging from the feedback from various users, no one has used it on a model of this size. Thats why I never found the problem before. If manual assembly cannot continue ?Chang Haonan frowned slightly and tapped his fingers lightly on the computer case next to the keyboard. Have you ever considered giving up the structural restrictions of the grid nodes and considering dynamically adjusting the model rules according to the changes in the object boundary when the surface deforms? ?There was a moment of silence. Yao Mengna and He Ming looked at each other. Judging from the expressions of the two of them, they didn''t even fully understand the meaning of Chang Haonan''s words. For example. Looking at the two people with clear eyes, Chang Haonan had no choice but to explain further. But after searching around for a long time, I couldn''t find any paper or pen. ?Yao Mengna, who knew Chang Haonan''s habits, quickly took it out of her bag and put it in Chang Haonan''s hand. For example, we can compare the calculation area to a linear elastic body and determine the displacement of the grid nodes by solving the elastic mechanics equations..." The algebraic model means that the displacement of the grid is obtained by multiplying the moving boundary displacement by a coefficient. The coefficient is 1 on the moving boundary and 0 on the far field boundary. The internal field is interpolated according to a certain function..." After some calculations and explanations, Chang Haonan drew a circle on the already filled paper: "Of course, this is not possible everywhere. For too complex parts, each side of the grid unit can be regarded as a spring. The spring coefficient is related to the side length. When the boundary moves, the force balance of the nodes of the spring system can be solved by solving the problem. Problem determining new point location In this way, the size, shape and position of the grid points can be adjusted and controlled during the calculation process, and the requirements for the grid boundaries will be much reduced. There was another moment of silence. There is this function in TORCH Multiphysics? After quite a while, Yao Mengna asked in a tone that was somewhat doubtful about life. She was obviously personally involved in the development of this software, but after thinking about it for a long time, she really didnt remember that there was such a way to play it. Of course not. Chang Haonan clicked the tip of the ballpoint pen back: But you can change it yourself! (End of this chapter) Chapter 492 Too advanced to be displayed Chapter 492 is too advanced to be displayed Can I change this thing myself? He Ming next to him was completely confused after hearing this. ?Although he has used various engineering software, he has never heard that users can modify the packaged software by themselves. There may be some technical means to achieve this, but it is obviously not feasible from a legal perspective. You must know that TORCMultiphysics is not some foreign software that has not been registered in China. You can use the user agreement as waste paper. They are the models of my countrys development of intellectual economy who have been specifically named and mentioned above, so we should still respect them. Of course it is impossible to directly modify the packaged software itself, and the user agreement does not allow it. ?Chang Haonan first waved his hands to deny it, but then changed the subject: But what I just said, dynamically adjusting model rules according to changes in object boundaries is a new non-structural mesh generation idea that does not require modifications to the software itself. TORCHMultiphysics was designed in anticipation of the current situation where users have special needs and we are unable to update the version in real time in a short period of time. Therefore, we have reserved a highly customizable interface in advance. What does custom interface... mean? When Yao Gong gave us training before, he didnt seem to mention this part? ?He Ming felt like an outsider, unable to get into the world of these two people. But just now I just didnt understand the specific technical explanation, and now I dont even understand the noun itself. That is, we can write our own toolkit that meets the requirements of the software protocol, as an enhancement or modification module, to achieve functions that the software does not have but we want to achieve. From this perspective, TORC Multiphysics has almost unlimited possibilities in theory. ?Yao Mengna explained from the side. As for why it was not mentioned during the training... Speaking of this, she glanced at He Ming with a meaningful look: This kind of module needs to be designed and written from scratch, and it can only be done by people who are very proficient in programming languages, algorithms, and mathematical theories such as solving high-dimensional nonlinear partial differential equations, so "Understood." Hearing this, He Ming nodded quickly, indicating that Yao Mengna understood. It would be unseemly to say any more. After all, lies dont hurt, the truth is the sharpest knife. Forget it, in the future, as everyones application level of simulation improves, the efficiency problem of block assembly of this large model will become more and more common, and it will not be your problem alone. Chang Haonan thought for a while and felt that it was unreasonable to let current users expand this core function by themselves: Please put these two parts aside for a while. The feedback from various parties recently is also being analyzed and processed. After I return to the capital, I will iterate a new version as soon as possible. A new version will be released so soon? Yao Mengna next to her was also troubled by this matter, but when she heard what Chang Haonan said, she still looked at Chang Haonan in surprise: The total number of users of this software is nearly 800. Every major update iteration is a major project. As a technician who participated in the development process of TORC Multiphysics software, Yao Mengna is familiar with the situation of her own products. Software these days rarely has an online update function, and many computers are not connected to the Internet for safety reasons. Updates can only be done offline, so it is impossible to update whenever there is nothing like more than 20 years later. Small version. ?Especially for many industrial software that pursues stability, it may not be updated every few years or even more than ten years after installation. (The author went to a petrochemical company to work on a project in 2017 and found that their production monitoring software was customized from our school and has not been updated since 1996. In order to run this software, they even kept two win98 systems. computer) TORCHMultiphysics initially had 744 domestic users and 17 foreign users, and more were added during this period. Software updates are sometimes more complicated than installing new software. In some cases, the manufacturer may even need to send technical personnel for guidance. In short, it is a very troublesome thing to think about. ?However, Chang Haonans understanding of software updates is naturally completely different from that of people of this era. ?Especially for numerical calculation software used for research and some industrial control software used for production, the speed of version iteration is critical. Why did China never catch up with similar foreign products in the field of industrial software in the previous life? ? To a large extent, this is because there is no way to collect enough user data to support efficient version update iterations. Many manufacturers are limited by this and have to install castrated versions of industrial control software customized from abroad for the machine tools they produce. ??Not only cannot fully unleash the performance potential of the machine tool itself, but it also gives valuable data to foreign companies in vain. Its been more than three months, and its time for an iteration. Especially for this key function, not only you, but other brother units may also use it at any time. ?Chang Haonan chose the long-story explanation. ?Of course, the problem mentioned by Yao Mengna does exist. If nearly 800 users are updated, Torch Company will indeed not be able to withstand this kind of work intensity. ??Moreover, the current level of TORCMultiphysics is in the form of dimensionality reduction, and a balance needs to be struck between improving user stickiness and ensuring technical barriers. Some things are still too advanced to be displayed. So after a pause, he added: "As for the number of updates, this time, including future updates, will definitely be given priority to users of the professional upgraded version. As for the professional version, it is necessary to postpone the update according to the actual situation, or integrate several small versions into one large version. release." Like what I just said, the overlapping grid algorithm based on unstructured grids is the latest technology, and it may even have to be delayed for several years before it is released to all users. ?He Ming, who was standing behind, brightened up. ??The status of being a user of the professional upgraded version is immediately reflected. This is also why the products of many major Internet companies will treat different levels of users differently. ??If you dont let rich brother experience the feeling of being superior to others, why would rich brother throw money at you? Chang Haonans reasoning is the same. Although he does not need money from Brother Fu, he also needs to increase the recognition of users of the professional upgraded version. After all, after the official version is released, the price of the extra-large cup will probably be more than an order of magnitude higher than that of the large cup. And another point is that this can indirectly promote foreign companies to take the initiative to carry out technical exchanges and cooperation with China. Just like the automotive research institute jointly established by Fiat and Jinling Automobile. ??In fact, what automotive technology does Jinling Motors have that is worthy of Fiat''s cooperation? Its nothing more than obtaining software authorization in advance through this method. What does it mean to use a point to make a face? This is called using a little to make a difference. Besides, Chang Haonan is not doing charity. ?He can also benefit from it - As long as the entire industrial software industry chain is deeply integrated, Torch Company, despite its small scale, can have a high say in all walks of life. The right to speak of Torch Company is naturally that of Chang Haonan. Would this lead to regular version... er, I mean, what are the opinions of Pro version users? Although it felt good to be treated differently and enjoy privileges, after all, the boss of the company was still in front of him, so He Ming decided to express his concern for the overall situation. In the end, Chang Haonan waved his hands nonchalantly: On the contrary, only in this way can we show that our software has a transcendent status in the industry and has a noble pedigree! Just like the machine tools you are using now, I just saw a few Swiss-made Starrags in the workshop. Is the model they exported to us a fully functional version? ?He Ming has been working in this industry for almost thirty years. "Breaking through foreign technology blockades" is almost the epitome of his entire career. ?In this context, it is indeed difficult for him to imagine that one day he can reversely block others in the technical field. But now that Chang Haonan mentioned it like this, he suddenly felt that it made sense: "That''s right. Anyway, I heard from Yao Gong that even the professional version sold to ordinary users is much better than similar software such as PEGASUS now..." (End of this chapter) Chapter 493 I only need to make a small move to reach the pinnacle of this era! Chapter 493 I only need to make a few moves and I am already at the pinnacle of this era! The localization and improvement work of the J-11 aircraft is multifaceted, and structural upgrades are not the only thing that can be done. So after receiving Chang Haonans suggestion, Institute 601 and Factory 112 quickly began to take action and adjusted their work focus in the recent period. Chang Haonan, after a short vacation, flew back to the capital. With regard to the system of colleges and universities, if nothing else, vacations can still be guaranteed. In 1997, the National Holidays and Anniversary Days Regulations, which had been promulgated and implemented in 1949, were still implemented nationwide. There were only two days of holidays on the National Day. Fortunately, since 1995, double holidays have been implemented every week, so including a weekend, I can take four days off. Its a little closer to home, so you can go back to your last trip. So when Chang Haonan came back to the computing center of Beijing Hang University and gathered the technical staff involved in software maintenance and updates for a meeting, it was already after the four-day holiday of National Day. Is this going to be a version update? ?After hearing about the sudden software plan at the morning meeting, the first reaction of most people was similar to that of He Ming a few days ago. Chang Haonan sat at the head of the conference room and glanced at the dozen business backbones in front of him who were divided into two rows and sat opposite each other: The new grid generation method will be updated to users of the professional upgraded version first, and the professional version will only retain relevant basic functions. The users of this professional upgraded version are highly professional universities and scientific research institutions involved in military projects. They have relatively strong independent capabilities. There should not be too many situations where we need to send people to upgrade. The person in charge of the after-sales business finally looked a little better. After taking a sip of water, Chang Haonan continued: "In addition, this overlapping grid generation method based on the unstructured grid method has no new requirements for the time and space discretization methods in the subsequent calculation process, so basically it only needs to be overhauled to the grid generation module. Not much has changed in other parts. ?At this time, the benefits of clear thinking in previous software design are reflected. ??If it is some **** code, then if it affects the whole body, such a big functional change may require the software to be rewritten... Ohits okay ?At this time, except for a few people responsible for the grid generation module, everyone else breathed a sigh of relief. Those who work in software, no matter what age they are, their working conditions are pretty much the same. As long as the project comes, just working overtime is easy. Sleeping in the workplace is commonplace. Some people who are familiar with each other have even begun to joke about Tian Zhaoyi, the person in charge of the grid generation module who is sitting blankly: Come on, man Someone tapped him on the shoulder. Think on the bright side, our company pays overtime pay Someone sighed with a concerned expression on his face. Yeah, its almost the end of the year. It would be nice to make some extra money to go home to my wife and children for the New Year... Some people even sounded a little envious. Human beings'' joys and sorrows are not the same, I just think they are noisy.jpg ?However, before they were happy, Chang Haonan changed the subject: No need to envy them...overtime pay, everyone can have it..." Hearing these words, the smiles of everyone who had been joking lightly just now suddenly solidified on their faces. "During this period of time, users have come back with a lot of opinions and suggestions. I just took this opportunity to revise all these areas together. I have probably seen it, and it is not a big problem. Try to release the first iteration of the new version within this month! People are not worried about scarcity but about inequality. ?Now everyone has overtime and money, so I dont feel there is any imbalance. ?Moreover, after the trial version of the software was released, most of the staff who were seconded to participate in the development returned to their original units. Those who are still here are all those who have directly transferred their working relationships. ? Will choose to give up a stable job in a research institute. At this point, it seems that the first meal may not necessarily lead to the next meal. New state-owned enterprises have joined, and they are more or less interested in TORCH Multiphysics, and even the entire field of numerical calculation. Academician Li Jie of the Institute of Computing Technology has acted with integrity in this matter. He allowed everyone to choose whether to stay or stay, which was a strong support for the Torch Group. ?Of course, it can be regarded as a thank you to Chang Haonan for helping him open up the nationwide supercomputing and server market. Shuguang Group, which could only rely on financial allocations to survive last year and even considered selling part of its shares to Dream Company to raise funds, has achieved positive profits this year. Although it may not seem like a big deal at the moment, it is the beginning of Chang Haonan wielding a **** against the former. After deploying some less important work, Chang Haonan asked the heads of other modules and businesses to go back to work first. Only a few backbones responsible for the grid generation module are left. Although in the early stages of software development, he requires all personnel involved in R&D to understand the basic situation of other parts, this is mainly to avoid some compatibility problems during the development process of different modules. Nowadays, software upgrade and maintenance work has become highly specialized, and the knowledge and skills required between different modules vary widely. Except for a very small number of people, it is no longer necessary or possible to understand everything. Mr. Chang, what is the specific difference between this non-structured overlapping grid method and the previous old method in terms of generation logic? After there were only a few knowledgeable people left in the entire conference room, the person in charge, Tian Zhaoyi, went straight to the point. ?The time is tight and the tasks are heavy. In addition, this is an area that he has never touched before. ?It feels like I am back to the time when I was just studying for graduate school many years ago. Is there any literature that I can refer to? An assistant next to him also asked. Generally, when researchers want to enter a new field that they have never explored before, they will start with some review literature to get a general understanding, and then go through the specific research directions bit by bit. "No." Chang Haonan shook his head decisively: Actually, even this term was randomly thought of by me some time ago. The expressions of the people on the other side were stagnant. ?Well, its our boss first initiative again. In the few months since they joined Torch Group, they have encountered more original technologies than in their entire careers. However, the unstructured overlapping grid method, like the structural overlapping grid method, requires overlapping grid system assembly before performing flow field calculations, that is, digging holes and determining the interpolation boundaries between grids and their host cells. Chang Haonan said as he opened the notebook on the table in front of him. As the research content becomes more and more in-depth, even he himself can no longer solve all the problems by brainstorming alone. Especially now that there are not enough scientific research points to directly use the system to solve the problem, it is even more necessary to put some ideas into the system. Organized out: The difficulty is that there are no topological relationships between grid units and grid nodes in unstructured grids like in structured grids, so parts such as dynamic automatic grid assembly, efficient search technology, and inter-grid interpolation, All require new algorithms to complete. The three most important parts are the classification of grid nodes and the definition of boundaries between grids, the search for host units, and the reconstruction of inter-grid interpolation boundaries ?While Chang Haonan was introducing his ideas to several people, he was also thinking about another thing in his mind. In engineering practice, the core of the new version of TORCMultiphysics is to use limited memory and computing time to implement this complex non-structured overlapping grid generation method, focusing on the parallel computing technology that has been applied in the software. But academically, the focus is on the front, the part he has already written in his notebook. That is, the concept of unstructured overlapping grid itself. So, he was thinking about how to promote this concept. ?After much deliberation, I can only use some leftover results to publish a paper Look, I have a very cool numerical simulation theory here. What? Do you want to do research but dont have the tools? ?That''s easy to say, I have it here. You can buy it and try it out first. You can experience this new method of mine and I''m definitely not bragging. However, the publicly released professional version does not provide supporting follow-up algorithms for the time being, and can only be used for theoretical research. ??If you want to use this method to solve practical problems... ?Then I''m sorry, this can''t be done. You can choose to wait, the updated content of the professional version may be 1-2 years behind the level. ??If you are not willing to wait, you can also refer to the Italians and choose to cooperate with Chinese institutions or companies that have professional upgraded version authorization. Perhaps our Torch Group also undertakes related numerical calculation business. It is just that R&D results need to be shared to a certain extent. ?This...you guys shouldn''t have any objections, right? (End of this chapter) Chapter 495 One day, with the sword in my hand, I will kill everyone in the world. Chapter 495: One day, with a knife in hand, I will kill all the dogs in the world! Even though the online paper submission function in this era is very anti-human, and the schools Internet speed is very poor, after a lot of trouble, Chang Haonan still submitted the paper before the end of the day. After finishing this series of things, Chang Haonan turned off the computer, tidied up his desk briefly, picked up his coat from the hanger next to him, and called to Xu Yang, who was also about to leave: Shall we go out to have a meal together tonight? For players in the latter position, positions other than first-level work and communication are equally meaningless. The core idea and most of the content of this article was completed by Chang Haonan, so there is obviously no reason to be the co-first author. Therefore, she simply handed over the second work to another member of the project team quite generously, and she just put her name at the end. But in terms of workload, she did contribute a lot. So Chang Haonan planned to treat the other party to a meal as a courtesy. If nothing else, the work of polishing the paper alone would be worth at least several thousand yuan after more than ten years. And its impossible to hire someone of this level to do it for you. Xu Yang turned around, thought for a moment and tilted his head slightly: "That''s fine, but... I want to try Lao Mo, how about it?" ?The so-called "Lao Mo" is the first premium Russian-style Western restaurant open to the public in Beijing. In the hearts of many older generation Beijing residents, he has a special status. ?Of course, the price is also quite exaggerated. ?However, as the general manager of a second-tier state-owned enterprise, Chang Haonan no longer cares about the price. He nodded while putting on his coat: "Of course, it''s just a little far away. I''ll ask Zhu Yadan to pick us up." After speaking, he picked up the phone receiver next to him and dialed Zhu Yadan. I thought you would prefer somewhere more trendy like Maxims. French food? Ive eaten it many times with my tutor when I was studying abroad. Its nothing new... ?Chang Haonan locked the office door and went downstairs with Xu Yang side by side. In the next few days, Chang Haonan''s paper submission caused quite a stir. Eight time zones away, Cranfield University, UK. Professor Roger Elinor has just returned to the office from a morning meeting, made himself a cup of espresso, and is ready to start a new day of work. After turning on the computer, he opened his school email as usual, ready to see if there was anything he needed to reply to. At the top of the list are usually a few personal statements. ?? Cranfield University is not well-known outside the industry, and you will hardly see this name in any university ranking list - Since it does not recruit undergraduate students, it does not meet the "shortlist" requirements for most ranking lists. But this does not mean that Cranfield University is not good. On the contrary, in terms of strength alone, its engineering school and business school are among the best. Especially in the aviation major, the level of integration of theory and practice is extremely high. Professor Elinor is a master in the field of aerodynamic structure design and performance analysis. ??He has participated in almost all key aerospace development projects of Rolls-Royce. ??Countless students apply to study with him every year. It''s a pity that he has already selected the postgraduate quota for next year, and there will be no other opportunities. ?Eleanor rarely wastes time replying to these emails that are destined to be meaningless, but just puts them into the recycle bin. ?? Next, there are a few boring work emails whose contents can be guessed by looking at the titles, and a review invitation from the editorial team of ComputerMethodinAppliedMachnicsandEngineering magazine. He subconsciously prepared to forward the email to several of his doctoral students. ??But when the mouse pointer moved to the forward button, a keyword in the email title suddenly caught Elinor''s attention. intergridboundarydefinitionmethod How to define grid boundaries, which is exactly what he is studying recently. As a senior consultant of Rolls-Royce, Elinor naturally participated in the research and development of the EJ200 turbofan engine planned to be equipped with the EF2000 fighter jet. To be precise, he participated in the work of wiping the **** of the EJ200 engine. ?When initially designing this model, confident British engineers continued the design of the RB199 engine in order to reduce weight to the maximum extent, without setting variable camber guide vanes at the low-pressure compressor inlet. It should be said that with the experience of the previous RB199, Rolls-Royce engineers are already familiar with this. The excellent low-pressure compressor design replaces the role of the guide vanes in suppressing surge and reduces the weight to a considerable extent. However, designers in the early years ignored a problem. ? Comparing to the RB199 installed on a fighter bomber/interceptor aircraft, the EJ200 is installed on several levels of higher maneuverability. Therefore, during flight, especially supersonic flight, the engine itself needs to withstand huge overload. In addition to the rectification function of the inlet guide vane, its fixed leading edge can also be used as a load-bearing member to form a three-point support together with the two support points at the front and rear of the compressor rotor. ? ?The EJ200, which has eliminated this support point, is at risk of wear and tear on the low-pressure compressor rotor and the casing when flying under heavy g... ? This problem has been going on for a long time, so much so that the first two prototypes of the EF2000 fighter jet could only be equipped with old RB199 engines for test flights. ?As a last resort, Professor Elinor, who was unwilling to participate in such a multinational cooperation project, was invited to handle the funeral affairs. The rotation of the compressor blades is a typical complex unsteady flow problem. In the past, few people have conducted research on low-pressure compressors from the structural and deformation dimensions. After all, engines without leading edge support are generally high-bypass ratio turbofans, which are mainly installed on passenger aircraft. It is impossible to perform crazy +9g maneuvers, so the overload capacity requirements of the engine are far less stringent than those of the EJ200. At the beginning, Professor Elinor tried to proceed step by step, using the traditional finite volume method based on dynamic grids for structural calculations. Then he discovered that the grid generation step alone would take about 8-9 months. Every improvement plan needs to be done again. This efficiency is obviously unsatisfactory. So, almost from the beginning, he realized that he had to build the wheel from scratch. But even for him, how could such a thing be possible? Therefore, when he saw an article studying the same content as himself, he was naturally very excited. ??Although this article has just been submitted, CMAME is, after all, the top journal in the field of computational structural mechanics. ?The articles that dare to be submitted here have passed the initial review by the editor and are almost impossible to be complete academic waste. Elinor made up his mind that as long as this article could give him even a little inspiration, he would give a "directly published" conclusion. After a long wait of seconds and years, the complete document content was finally presented to him. The grid nodes in the overlapping grid that participate in flow field calculation are called active nodes, the grid nodes that do not participate in flow field calculation are called inactive nodes, and the grid nodes that are responsible for information transfer between grids are called inter-grid interpolation boundaries. point" Using the combined parameter s of object surface distance and grid scale as the criterion parameter for classification Unstructured overlapping grid? Eleanor quickly found the point of the entire article. When the object moves or deforms, the non-structural mesh can make corresponding deformation adjustments according to certain model rules according to changes in the object boundary... ??? With his pupils trembling, he read this paragraph over and over again several times, and finally determined that it was what he understood. Isnt this just designed to solve my problem? Elinor told herself again and again not to be too happy. ?Because he is afraid that this will be an empty joy, which will lead to sorrow. But the hand holding the mouse trembled slightly, which still revealed his inner uneasiness. ?Eleanor would force himself to read almost every paragraph of text at least twice to avoid missing any key points or making mistakes in understanding. ?However, the further back he looked, the faster he browsed. The author''s ideas are extremely smooth, and the theoretical derivation and numerical calculations are all done in one go. There is almost no part that requires him to ponder over and over again. You know, this is a new concept that he has never been exposed to before. Being able to write to this level requires a very high academic foundation. It is not your skill to write an article that is complicated and difficult to understand. What is really great is to make it understandable to people who read it for the first time. Host unit search Mixed unstructured mesh overlapping Unstructured overlapping grid interpolation method ?Eleanor became more and more excited as he watched, and had long forgotten about "don''t open the champagne too early". ? He ??is even sure that according to the author''s thinking, what follows this part should be the unsteady N-S equation solving algorithm based on dynamic unstructured overlapping grids. ?As long as you have read this part, at Elinor''s level, it will not be difficult to transform theory into practice and apply similar technologies to your own projects. However. When he turned to the next page of the document, the content that appeared turned out to be... ?Conclusion This article is over... Eleanor was immediately stunned. His mood was like reading a novel and had just reached the climax. As a result, the chapter is broken! At this moment, he even had the urge to take a knife and cut the author along the network cable. After a while, the professor slapped his hand heavily on the keyboard. fxxkWhy is it gone here? Its ten thousand days a day, please give me a monthly ticket! ! (End of this chapter) Chapter 496 Why not contact the author himself? Chapter 496 Why not contact the author himself? An article left Professor Elinor scratching his head and scratching his head. He has basically determined that if the unstructured overlapping grid technology mentioned in the paper is applied to several ongoing projects at hand, it can greatly improve computational efficiency. But the content that ends abruptly seems like the author is deliberately tempting his colleagues. Obviously, we are already standing in front of the door to the new world. but No key! ? After taking several deep breaths, Elinor calmed down a little bit from his dissatisfied mood. As a senior professor with a high level of research, he does not have to wait for others to put things into his mouth. Subjective initiative still exists. Eleanor estimates that an additional toolkit or new program may be needed to accommodate this never-before-seen grid technology. ??Although the professor himself is not an expert in software programming, he still has the vision. ??Moreover, he has been immersed in the aviation field for many years and has absolutely no shortage of contacts, especially in Europe. So, after thinking for a moment, Elinor forwarded the paper to another email address and attached some of his own thoughts at the end. After doing this, he leaned back in his chair and began to think about what review comments he should give. But after thinking about it for a long time, I really didnt find any comments that I could write. ??The author''s theoretical foundation is quite profound, and the overall structure and reasoning logic of the paper are very smooth. He just read it almost in one go. If I have to say it, the details of writing articles and using words and sentences need to be improved. But Professor Elinor also has dignity. ?Such an epoch-making article, if he were to just offer some dispensable, literary opinions, it would be an insult to the author, the journal, and even himself! Some things, when written by ordinary authors, are called grammatical errors, but when written by great authors, they can only be called personal characteristics. Only worthless academic **** will make reviewers focus on this kind of place. On the other hand, he was now preoccupied with wondering how this grid technique could be used to solve the N-S equations, or even the numerical solution of Euler''s equations. However, according to the title and abstract of this paper, the author did not originally say that I wanted to study this part. CMAME is not a comprehensive journal with an extremely high impact factor. If you can make a breakthrough in a certain direction related to numerical calculation, it is enough for publication. Whats more, its an achievement that may usher in a new era of computational physics. There is absolutely no reason to ask for additional content because of this. ?He, Roger Elinor, is also a well-known figure in the field, and he has a lot of face. "well" The professor let out a long sigh: Although I really dont want to write a manuscript for you like this, but... This article is really perfect While muttering to himself, he sat up straight again, put his hands on the keyboard, and began to write review comments. Generally speaking, Professor Elinor has several sets of standard templates for articles on different situations, which only need to be slightly modified. But this time, he decided to write a separate one to show respect. Before I could finish writing the review comments, the phone on the table suddenly rang. Elinor frowned, but had no choice but to put down what she was doing temporarily and pick up the phone receiver: Hello, Roger Elinor, Cranfield University. Roger, its me, Fernando. A burst of Spanish-accented English came from the other side of the phone, which made his eyes light up. ?The other party was Fernando Lorenzo, whom he had just contacted via email. As the head of Dassaults software department in the past, he was almost naturally the first person that Elinor just thought of: "Fernandinho, what a coincidence, I just sent you an email ten minutes ago. If you have time..." Under normal circumstances, it would take several hours to read such an article, so Elinor subconsciously thought that the phone call was just a coincidence. ?But halfway through his words, he was interrupted by Lorenzo over there: Ive seen your email, so I called you. Have you finished reading it? So quickly? Of course I didnt start reading the email after you sent it. ??Lorenzo sounded a little helpless: "This paper was also sent to me for review, so I have been reading it this morning. I just received your email and called you back." ?Eleanor also reacted this time. ?Given the content level of this article, there are only a few experts who are qualified to serve as reviewers. ? Among them is naturally Lorenzo, who was once a senior engineer in Dassault Software Department. What do you think of the thoughts in my email? Elinor thought for a moment and then immediately got to the point: If a complete set of numerical calculation technology can be developed based on this grid generation algorithm, it may have a decisive impact on the entire field! As a technician, of course he is also ambitious. ?Although he is now considered successful in the UK, Elinor is still just a senior engineer. There is still a long way to go before establishing a sect or at least leaving a mark in the industry. ?However, the response on the other end of the phone poured cold water on him: Roger, this isnt that easy. This new grid eliminates the structural restrictions of grid nodes and can dynamically adjust the boundaries according to model changes. It looks really beautiful. Speaking of this, Lorenzo changed the subject: But you also have to consider that when using this algorithm to assemble an overlapping grid system, you need to find the host unit of each grid node in other sub-grids, so the amount of calculation required for the host unit search will be very huge. " This is not to mention the cumbersome subsequent numerical calculation process itself because there is no topological relationship between grid units and grid nodes. In short...this is not a problem that can be completely solved in a short time. Although Lorenzo''s attitude was quite authoritative, Elinor was still a little unwilling: Given the current situation, how long do you think it will take to implement this method? The problem of EJ200 is more troublesome. The easiest way is of course to directly strengthen the structure, but that will cause the performance of the entire engine to be terrible, and it will definitely not be accepted. If you want a more clever processing method, with the current design method, you will need a lot of bench testing and even flight testing. ??But according to Elinor''s understanding of the so-called "European joint project", if he really delays in making a decision on the core component of the engine, then the EF2000 will be useless in a few years. So the best way is to rely on heap numerical calculations to reduce test time. He needs this technology. For me, this is almost equivalent to starting from scratch, and past experience is of little reference value. After a period of reflection, Lorenzo finally spoke: Conservatively estimated, it may take 2-3 years to develop a first version of the software that is roughly usable, but the algorithm is advancing too fast now, and it is difficult to guarantee what new situations we will face by that time... ?Although it is put more euphemistically, the meaning is... no. Actually, I have always had some doubts. After a brief pause, Lorenzo continued in a confusing tone: Why dont you try to contact the author of this article? (End of this chapter) Chapter 497 No modifications required, just publish! Chapter 497 does not need to be modified, just publish it! The author himself? Hearing this, Elinor realized that he had not read the author information of the article. Because at the beginning, he was planning to leave it directly to students for review. Because the keywords in the title aroused interest, I decided to click in and take a look. ?As a result, I just watched it for a few hours, and I had long forgotten those things. Eleanor quickly turned the article back to the first page. Generally speaking, the author''s information will be indicated below the homepage or title of the reviewed article. ?CHANGHaonan ?TORCHtechnology China? Uh... this author comes from a... Chinese company that I havent heard of. ?Eleanor, who has been immersed in the industry for many years, considers himself to be well-informed and has heard about even the slightly famous peer organizations in the industry. also includes Huaxia. You must know that Cranfield University is almost the first university in the UK to systematically train international students in the aerospace industry in China, which is quite well-established. But the name of this Torch Technology is really... The first time I heard it. Wellit seems that Roger, you have been a little bit out of touch in recent months Lorenzo on the other end of the phone smiled and responded: This company is a rising star that was only officially established in July this year, but it is very strong in numerical calculations, especially in the field of aerospace calculations. Many research institutions, including our school, have already established cooperative relationships with them. " "July?" ?Eleanor was so confused that he turned his head and glanced at today''s date in the lower right corner of the computer. It was indeed October 1997. It only takes three months? Can you make a name for yourself in the industry? ? He ??has indeed been concentrating on the structural strength of the EJ200 engine in recent months, so he does not have much energy to pay attention to industry developments. However, in the field of engineering, especially in the field of aerospace, even if new forces rise or old hegemons decline, there is a gradual process. ? For example, McDonnell Douglas was absorbed by Boeing. Although the news itself was indeed explosive, the decline of McDonnell Douglas actually began in the mid-1980s. ?Another example is Airbus, which brings together the best of European aviation technology. It has taken more than 20 years of development to reach its current second place in the industry. How can there be a saying that a company suddenly pops up and then takes off immediately? It is true that it has only been established for three months, but I estimate that the technology research and development of this company has been carried out a long time ago. Lorenzo first explained, and then asked: You should know that at the beginning of this year, Airbus, the European Aviation Agency and China reached a tripartite cooperation agreement, right? Of course I know. For Boeings merger with McDonnell Douglas, I remember you were involved in the negotiation process at that time? ? Boeing''s merger with McDonnell Douglas and the series of butterfly effects it triggered can be said to be one of the biggest news since the birth of the aviation industry, and it is impossible for Elinor not to know about the related news. Its just that he didnt understand why the other party suddenly mentioned this topic. The author of this paper, I had direct contact with him during the negotiation. You are very young and very capable. The meteorological risk prediction system that JAA has just put into use recently was developed in cooperation with one of his achievements. On the other end of the phone, Lorenzo also had the paper open on his computer. ?However, what appeared on the screen at the same time was the latest user agreement sent to him by the TORC Multiphysics software for confirmation. Written in each of the six working languages ??of the United Nations. After completing the signing, they can obtain the corresponding trial version. Before this, Lorenzo only vaguely felt that among the developers of this software, there should be members who were proficient in aircraft design, but he had never connected the Torch Group with the young designer he had met in China before. But today, he suddenly discovered that the unit behind Chang Haonan''s name was TORCHtechnology... Its all connected! Actually, if you think about it carefully, it is somewhat reasonable. After all, when Lorenzo went to China for negotiations before, the other party had already introduced an aircraft icing simulation program, which shocked him at the time. ? Its really hard for normal people to expect that just a few months later, the same person would develop a new, more complex software, and it would be a great success... "So...you mean, this company called Torch Technology will have supporting related technologies?" Elinor was still doubtful. After all, judging from the final conclusion of that paper, the author also mentioned that follow-up work is to "consider the possibility of practical application." It is entirely possible that after a phased result is achieved, it will be released immediately. This is a very common situation in academia. CMAME is already a top journal in the field. No matter how much content is filled in this article, it will not be published in any better journal. ?Then it would be better to split it up and publish one article into two articles. I cant guarantee this. After all, I havent got this software yet. I can only know some basic information through some old friends in Italy. ??Lorenzo obviously didnt dare to guarantee it. ?But then his tone changed: However, if anyone is likely to develop this technology to the point of practical use in a short period of time, it is basically only them. ?Given his status in the fields of numerical computing and software development, being able to say this obviously represents a very high level of recognition. Okay, I understand. ?Eleanor took a deep breath, prepared to put down the phone, and think about what to do next. "Wait a moment." Lorenzo on the other side of the phone quickly stopped him: Your review comments for this paper, you... Publish directly, of course directly publish! ?This time, Elinor had almost no hesitation at all. ??Just kidding, you want to use other peoples technology for a project, but you still get stuck on other peoples papers? Leave aside the fact that if only one editor requests rejection, in many cases the opinion will be excluded directly. Lets just say that CMAME is not the only top journal in the field of numerical computing. In case people switch to the old opponent JCP, isn''t there no place to cry? Some papers are proud to be published in top journals. But there are some papers that top journals are proud to publish. ?As for the article he is reviewing, after it is published, I am afraid that it will raise the impact factor of CMAME to a higher level in two years! Thats good, thats good. Lorenzo said twice that it would be good. Obviously, direct publication is what he meant. The two exchanged brief greetings for a while, and Eleanor, who was still worried, hung up the phone. Collaborative R&D is definitely not possible. At least not openly and with great fanfare. EJ200 is a military project. It suddenly said that it would share data with China and engage in joint development. It would be fine if it was only the UK, but this is a European joint project. I am afraid that just the cooperation license can take several years. But in the second part of the paper, the author once mentioned that a set of "self-developed" computing tools were used during the research process. Eleanor didn''t pay much attention when he looked at it. But now in retrospect, combined with the other party''s research unit, it is still a company. seems to be some kind of hint. Thats not right, its an explicit statement. "Come and buy it, uncle~" kind of thing. ?Thinking of this, Elinor quickly reopened the email interface and copied the author''s contact email address into the recipient column... (End of this chapter) Chapter 498 Mo Gai Zhi 9, the new business of Torch Group (asking for a monthly ticket) Chapter 498: Mo Gaizhi 9, Torch Groups new business (please give me a monthly ticket...) Back to Chang Haonan. There is no need for him to wait until the paper is published before taking any action. ? Within two days after the manuscript was submitted, a new content was added to the official website of Torch Group and the business list for telephone consultation. ??For users who lack computing resources, have limited technical strength, do not have permission to use the "professional enhanced version" TORC Multiphysics software, or are simply too lazy to do it themselves, Torch Group can provide a variety of customized numerical calculation solutions. In other words, the customer provides the 3D model and other research parameters, and we are responsible for calculating the results. For this purpose, Chang Haonan also set up a separate business department. Personnel... ???Of course I picked it up directly from Beijing Hang University. ??Anyway, Tang Lintian just wanted to support him now. He only wanted a few people, so there was no way he would have any objections. ?Furthermore, in the 1990s, colleges and universities not only ignored teachers side jobs, but also encouraged them... ?As a result, Liu Hongbo was sold to Chang Haonan by Tang Lintian without his knowledge, and he naturally became the manager of this "Numerical Computing Business Department". Fortunately, Professor Liu''s mentality was not bad, and he quickly adapted to the new part-time job, completing his identity transformation from Chang Haonan''s quasi-mentor to Chang Haonan''s senior brother to Chang Haonan''s assistant, and finally to Chang Haonan''s subordinate. ?Of course, onboarding training for new employees still needs to be done. At this time, Chang Haonan was in the computer room, introducing Liu Hongbo to matters needing attention in related business. Generally speaking, Liu Hongbo and Fang Zhen, who will graduate in the next year, can basically handle most tasks that are not too troublesome. If that doesn''t work, you can also ask Chang Haonan himself to support you. So the technical problem is not big. Its mainly about business. According to Liu Hongbo''s own words, he is a person who does not love money, so he does not have any business or industry outside. ?However, in the version described by Du Yishan, he actually did not dare to try again because he lost all his three previous entrepreneurial ventures. No matter which version is true, it is certain that Professor Liu is not very good at business. Master...Mr. Chang, why are our businesses divided into engineering calculations and scientific research calculations? Arent they both the same? ?Unsurprisingly, after Chang Haonan introduced the business model and philosophy of the Numerical Computing Business Department, Liu Hongbo asked with confusion. Is this... ?After Chang Haonan confirmed that no one was around, he explained to Liu Hongbo in a low voice: Engineering calculations are calculated based on the conditions and requirements given by the customer until the results are satisfactory. Of course, you have to add money for each round of calculations, but in short, you must be 100% responsible for the calculation results. As for this scientific calculation...it means that no matter what conditions the user gives, no matter what result is calculated, the sale is done in one go. Of course, there are clear provisions in the contract, and there is no guarantee that the conclusion will be consistent with the actual situation..." "ah?" Liu Hongbo was shocked when he heard this explanation: Then wouldnt this... be easy to cause problems? In case someone uses our calculation results for a project ?Chang Haonan lightly knocked on the table next to him: Thats why its called scientific research computing! Liu Hongbo suddenly realized. So its used for water Halfway through the words, Chang Haonan nodded and did not continue. ??We are all scientific research dogs, and it is inevitable that there will be times when we need to write a paper. In order to ensure the validity of the results in engineering calculations, the cost of a calculation example ranges from tens of thousands to hundreds or even millions. Ordinary research groups do not have so much money to waste. Whats more, most research does not require such exaggerated accuracy and reliability. Its just that Chang Haonan has always been working on projects that are important to the country, and there is no room for sloppiness. In most cases, problems are solved by numerical calculations with average accuracy, coupled with experiments and experience. The scientific research calculation part can be left to newcomers or interns to practice in the future, but the engineering calculations must be done by experienced personnel. If you have any technical questions, you can ask me. Of course, engineering calculations must face a wide variety of projects. Now we are short of manpower and cannot take on all projects. We can work on the most important projects first. If you are not sure about this, you can also ask me. ?Although Chang Haonan seems to have taken over a lot of life for himself, in fact, there are not many things that really require his personal decision-making. Okay, I get it. Liu Hongbo nodded: "I will definitely lead the numerical calculation business department!" This new position requires him to work under his junior brother, so at the beginning, he was actually reluctant to come. But there was no way, I gave it too much, and it tasted really good in the end. Originally, Liu Hongbos intention was to express his position. When you join the job, why dont you give it a few days to get used to it? As a result, Chang Haonan is directly at a high level: Thats just right. This morning, the company just took over a numerical calculation business. The one from Bingcheng was to design a new rotor and fuselage structure for a helicopter..." Helicopter Liu Hongbos expression froze: Ive never done it before "It''s all about the same thing, let''s get some exercise... I read the content in the morning. The main content is a numerical simulation of the near-ground flow field of a rotor, and a numerical simulation of the flow field of the rotor/fuselage combination. Not counting Whats too difficult? While talking, the two of them had returned to Chang Haonan''s office one after another. The latter picked up a file bag with a confidentiality stamp from the table: In recent years, the navy and air force have obtained a lot of new equipment. As a result, the army only has new soldiers except new guns. It will definitely not be able to sit still. The only helicopter our country can barely produce now is the Z-9, so we want to develop a general-purpose armed helicopter based on this, which can carry people and fight, and can also be used to earn foreign exchange through exports. Ohif the existing model is improved, it should be okay After hearing the specific project arrangements, Liu Hongbo breathed a sigh of relief and took out a piece of information from the portfolio. He quickly turned to the design part. An aircraft that looks little different from an ordinary Z-9. ??Only a sighting device is installed on the upper left side of the nose, and a set of beams are added on both sides of the fuselage. It doesnt look like an armed helicopter? Liu Hongbo commented hesitantly. This is the original plan that Bingcheng came up with before, but the users were not satisfied with the performance, so the 602 Institute wanted to make more drastic changes to the entire aircraft. A more substantial changefrom UH1 to AH1, or from Mi8 to Mi24? ?Liu Hongbo suddenly felt a lot of pressure. ?Changing a general-purpose helicopter into a special-purpose armed helicopter is an improvement, but in fact it is not much different from designing a new aircraft. The action may not be that fast. After all, special-purpose armed helicopters have high requirements for mobility and mounting capabilities. We still lack some accumulation in this regard. Chang Haonan shook his head. He didnt know much about the situation in the Army Aviation Corps, so he could only explain this: For more specific information, Bingcheng will send someone to contact you in two days. But in short, this time, they are probably going to change the dolphin so that even the French wont recognize it (End of this chapter) Chapter 499 I accidentally did the Cobra maneuver (fourth update, please give me a monthly vote!) Chapter 499 Accidentally performed the Cobra maneuver (Fourth update, please vote for me!) The general helicopter improvement project in Bingcheng, after Chang Haonan paid some attention to it, let it go to Liu Hongbo. The Z-9 platform is, after all, a 4-4.5-ton medium-sized helicopter, and it also introduces a relatively mature design from France. Even if it is modified, the risk will not be great. At most, it is nothing more than failing to meet the design requirements. Its not like it hasnt happened before. The first armed variant of the Zhi-9, which is the Zhi-9W in that document, finally passed the acceptance test after lowering the design specifications. Whats more, the 602 Research Institute has made it clear that this improved version will not make any drastic changes to the basic design of the Z-9, so there is nothing to worry about. Others in the Torch Group must learn to act independently. This is a good opportunity to practice. After all, for Chang Haonan, the two most important things at the moment are the turbofan 10, which is already on the right track, and the heavy-duty die forging press, which is under intensive preparation and will soon start research and development work in the name of "pre-research" - ?Professor Yan Yongnian of Qinghua University is currently sorting out the remaining design data of the previous semi-finished product and contacting some old comrades who have participated in that project and are now interested in rejoining the construction of die forging presses. In fact, Chang Haonan has even decided to hold the first working meeting of the die forging press R&D team on the last day of October. ?Just when Chang Haonan was trying his best to advertise the TORC Multiphysics software and Torch Groups numerical calculation business. Yunmachang, Qianzhou Province. The No. 01 prototype of the JJ-9 was painted in red and white and was parked quietly at the end of the takeoff runway. Several auxiliary vehicles providing power and air sources were parked next to it, connected to the aircraft by thick pipeline. The front and rear canopies of the aircraft were opened to the right, and two boarding ladders were set up on the left side of the fuselage, apparently waiting for the pilots to board the aircraft. The scale of Yunma Factory is more than a little smaller than its counterparts in Shengjing, Haojing or Rongcheng. In addition, it is located in a mountain, and the supporting airport is also relatively cramped. Therefore, the maintenance work of the aircraft is usually carried out directly on the runway. Anyway, there may not have been a chance to take off a plane here in the past month... Sun Huizhong, the chief designer of JJ-9, is standing in the command station not far from the aircraft, deploying the preparations for this test flight. Actually, today is not the first flight of this model. The test flight of the JJ-9 has been "secretly" carried out for almost half a month. Of course, this does not mean that Guihang and its sister units must keep the information secret. In fact, this aircraft failed to make too many waves in the industry. Even in the circles of military fans and aviation enthusiasts, only the most senior group of people paid attention to it. Technically speaking, the JJ-9 can indeed be regarded as the ultimate improved version that has a direct lineage with the MiG-21. But for the current Chinese aviation industry, no matter how modified the MiG-21, that is, the J-7, is not enough to arouse everyone''s interest. Simply put, the taste is spoiled. Considering the relatively remote geographical location of Yunmachang, it takes a lot of effort to get here not to mention from the capital city, but even from the provincial capital. ??There are not even wall-climbing parties joining in the fun. In short, the first flight half a month ago was quite low-key, not even as good as the prototype roll-out ceremony attended by provincial leaders. ?Of course, the JJ-9 is one thing for the entire aviation industry system, but it is another thing for your aviation industry. ?This can be said to be the most critical step for Guihang to save themselves and survive. If Shuo Wei didn''t understand it, then maybe even Chang Haonan wouldn''t be able to save them. Therefore, Chief Engineer Sun Huizhong and Guihang General Manager Lin Haijun seized almost every possible opportunity to demonstrate the aircraft to potential users. ??The reason why this aircraft is painted to look as fancy as it is because today, Wu Guohui, the captain of the Bayi Aerobatic Team, will come in person to experience the flight performance of this prototype. ??The model currently equipped by the Bayi Performance Team is the J-7EB, which is the performance model of the J-7E and one of the main models of the Chinese Air Force. To be fair, the performance aircraft derived from the J-7E can basically meet the needs in terms of low-altitude and low-speed performance. But the purpose of air shows is not just to show off wonderful stunts and the superb flying skills of pilots - from the perspective of flying stunts, then any jet aircraft is not as good as those propeller-powered special aerobatic aircraft. The more important point is to show the style and strength of the People''s Air Force, including the Chinese Aviation Industry, through flight performances. From this perspective, the J-7EB is a bit unsatisfactory. Even for viewers who dont know much about air force equipment, its not difficult to see that this is not a very advanced fighter aircraft. So, the Bayi Performance Team has been looking to replace itself with a model that at least looks more advanced. At present, the most advanced main battle model in the hands of the Air Force is the J-8C, which was finalized last year. ??But even after Chang Haonan''s extensive modifications, the J-8C, which is an interceptor aircraft, is really not suitable as a performance aircraft. The mobility is strong enough, but the agility and reaction accuracy are still a bit lacking. Besides, its a bit too expensive At this time, the JJ-9 was approved as the inlet verification model of Project 10. ?Lin Haijun keenly discovered this opportunity and put the draft design of the aircraft on the desk of the Air Force leaders. Generally speaking, the maneuverability of the JJ-9 is far superior to that of the original J-7EB, and the two-person cockpit also allows a flight photographer to accompany the aircraft for photography. The more important point is that it is at least a "pointed aircraft". To the uninitiated, it even looks similar to the F16 used by the American Thunderbirds. After all, when an airplane is making movements in the sky, in most cases only an outline can be seen. ?Hence this experience flight. ?Furthermore, Lin Haijun understands the essence of eating two things with one fish. At this moment, on the management platform in the distance, there were several people with obviously foreign faces standing next to him, all holding a telescope in their hands. Obviously, we also came here to watch this flight. ?Not long after, Wu Guohui and another test pilot, who had already changed into flying gear, boarded the plane one after another. With this J-9, there was another J-7 that took off. The latter will assist the No. 01 prototype and show Wu Guohui a "unique skill" of the JJ-9. ??Wu Guohui is not a full-time test pilot, but as the leader of the demonstration team, he has an astonishing flight time of more than 5,000 hours, so he adapted to the new aircraft quickly. ?Ten minutes later, two planes rose into the sky at the end of the runway one after the other. ? Just this simple action, pulling up the nose of the plane to climb, allowed Wu Guohui in the front seat to experience the extraordinary power of this aircraft. Not only the take-off distance is shorter, but the throttle and pole position responses are also much more sensitive than the J-7EB he is used to driving. The turbojet 14B does not have a full-authority digital electronic control function. This improvement is entirely due to Chang Haonan''s redesigned compressor and the more efficient DSI air intake on the JJ-9, which allows the engine to adjust its working status at a faster speed. Won''t get caught in a surge. It is somewhat similar to a person''s lung capacity becoming larger and lung function becoming healthier. Although the muscle mass does not change, the level of exercise will still be improved. ?After experiencing the increase and decrease of the throttle several times in a row, Wu Guohui roughly mastered the operating rules of this aircraft. ?His own rich experience is of course one aspect, but more importantly, JJ9 is really easy to open. ??Due to the existence of fly-by-wire flight control, the overall control of this aircraft tends to be linear, which is very intuitive. Even a novice can master it quickly. It is indeed a good foundation as a trainer aircraft. ?Wu Guohui, who had itchy hands, climbed the plane to a safe height and prepared to try a few aerobatics. ?Before taking off, he already knew that there would be potential foreign customers watching today''s flight. Hence, before making the move, Wu Guohui specifically adjusted the direction to allow the plane to pass sideways above and in front of the management platform. ??At the moment the J-9 flew across the airport runway, he quickly pulled the stick back with his right hand and controlled the throttle with his left hand to prevent the aircraft from entering a rapid climbing attitude. After the brief feeling of overweight, the two pilots'' eyes crossed the midday sun and landed on the horizon behind them. They were almost "lying" on the back of the seat in a slightly head-down position. From the outside, especially from the viewing platform on the side, the nose of the aircraft tilts up to about 100-110 almost in an instant, forming a situation where the tail is in front, the nose is behind, and the fuselage of the aircraft is almost erect. But it is still flying forward. While being shocked, Lin Haijun also did not forget to pay attention to the reactions of the wealthy investors next to him. As expected, several people opened their mouths in unison, holding telescopes, and almost stood still. Cobra maneuver! (End of this chapter) Chapter 500 "Mountain Eagle" flying to the world Chapter 500 The Mountain Eagle flying to the world Compared to the laymen who were just watching the excitement on the ground, Wu Guohui in the cabin was even more overjoyed at this moment. Because he can even feel his hand holding the control stick tightly, and the aircraft can still adjust its flight attitude according to the subtle movements of his hand. In other words, at this large elevation angle of about 110, the JJ-9 is still controllable! This is much more meaningful than simply flying a Cobra maneuver. ?Whether it is Su-27 or F18, although many types of aircraft have made the same action in the past, most of them were essentially in a semi-out of control state during the process of raising their heads and finally returning to level flight. That is to say, although the aircraft can remain stable and avoid flying randomly due to its aerodynamic design, it cannot be controlled within a specific angle of attack range. It''s just that different models have different stages of losing control. If you want to restore complete control, you can only wait until level flight is restored. Of course, there are also high-ranking players such as the No. 711 Verifier or the HARV Verifier, but they are all cheating through vector propulsion technology. JJ-9 does not have these tricks and tricks. It relies entirely on aerodynamic design to maintain maneuverability at large angles of attack. Very maneuverable. ??Wu Guohui has already given this aircraft a high basic score in his mind. After a little experience, he quickly leveled the plane. ?The reason why over-stall maneuvers have little practical significance is that on the one hand it is difficult to control during the maneuver, and on the other hand it will cause the aircraft to lose a lot of speed. Even after some improvements, the JJ-9 is not an aircraft good at energy. It needs a period of acceleration in level flight to prepare for the next action. ?Taking advantage of this gap, Lin Haijun started to improve his own products. Although our aircraft is a training aircraft, its maneuverability has definitely reached the level of a fighter jet, as some of you must have seen before. "For student pilots, trainer aircraft with stronger controllability and maneuverability will also help them adapt to real combat aircraft faster and reduce the possibility of accidents during flight training. Even if a stall or spin occurs, as long as When the pilot releases the control stick and pedals, the flight control system will automatically recover and resume level flight..." ?The automatic leveling function was actually not that rare in the late 1990s, but for some potential customers who had never used high-end products, it was still something worthy of special mention. Furthermore, the JJ-9 itself also has the ability to use weapons. The combat training type will even be equipped with a fire control radar, which can launch medium-range projectiles for beyond-visual-range combat. ?As he spoke, he held up a wooden airplane model to demonstrate to several customers. ?The other party is actually from Sudan, and their original intention is to purchase a few advanced training aircraft that can train pilot students. The Sudanese Air Force is equipped with about 20 Qiang 5IIA, 15 Su-25 and 4 Su-24M, and is purchasing a batch of upgraded MiG-29S that can launch R77 active bombs. It is considered a barely capable air force in the African region. strength. In the past, their air force pilots were mainly trained by the Egyptian Air Force. Although there are territorial disputes between the two countries, the reason for the dispute is that they both believe that the two territories should belong to each other, so they are in peace with each other. Until oil was discovered beneath one of the fields In short, the Sudanese Air Force feels that it must establish an independent flight school. Having said that, they were clearly shocked by the performance of the JJ-9 just now. Marat, the chief of staff of the Sudanese Air Force who led the team, put down his binoculars and suddenly felt that for such a limited air force under his command, there would be nothing wrong with having more aircraft that could be used for combat. ?Lin Haijun quickly saw the interest in this model from the other party''s eyes. Considering that the Sudanese Air Force has almost no air combat needs, he quickly turned the topic to the multi-purpose capabilities of the aircraft. "Our JJ-9 can maintain a minimum level flight speed of 195km/h. Compared with the Qiang-5IIA used by your country''s air force in the past, it is more suitable for ground attack, and its maximum speed can reach 1.2 times the speed of sound. Compared with the Su-25, it can Reach the battlefield faster..." The advanced training type has a total of 7 weapon hardpoints, while the combat training type has 9, and can mount up to a total of 3 tons of weapons and equipment. "We have reserved a light hanging point with a data interface on the left front of the belly of the aircraft, which can be used to mount a data transmission pod or a laser targeting pod to use TV-guided or laser-guided precision-guided weapons. This is also an old model. What attack aircraft dont have The best way to bring goods is actually to push them. Therefore, Lin Haijun spoke eloquently and easily described his own products as the most suitable equipment for the air forces of third world countries. ??Actually, he didn''t lie. It''s just that at the moment, China''s aviation industry is not able to provide supporting related equipment. But it doesnt matter, the hardware interface has been reserved, and the rest can wait for OTA. ?Sure enough, Chief of Staff Marat didn''t care much about precision-guided weapons. ?Sudans first large-scale oil field was built by China Petroleum and Natural Gas Company. It has not yet been put into production, and it is not yet wealthy enough to use precision-guided weapons on a large scale. Besides, the main opponents they face are some separatist armed forces and terrorists in the Sahel region. It is enough to be able to fire a rocket. Whats the range of this plane? What Marat is concerned about is that the battery life must be long enough. Otherwise, others will hide for a while when they see the plane coming, and you will have to return quickly if you can''t find the target, which would be boring. General training aircraft generally do not set too long a blank time because they do not have this requirement. Fortunately, the JJ-9 was born out of a serious fighter jet and replaced with an engine with lower fuel consumption. With three auxiliary fuel tanks, the maximum range is 2,600km, far exceeding most similar models. ?Lin Haijun continued to diss his business partners mercilessly. At this point, he suddenly had an idea and added: If your country particularly needs to carry out some long-term air patrol missions, then... our company is actually developing a drone, similar to that used by the US military. Mr. Marat can wait until next year to take a look..." While the two were talking, Prototype 01, which had circled in a circle, flew back again. Only this time, we were flying in formation with the accompanying J-7. ?Marat raised the telescope in his hand again. ?But this time, from a visual perspective, there doesnt seem to be anything special. Just when he was confused, a conversation between the tower and the aircraft came from the radio next to him. ?Lin Haijun directly acted as the translator: This is to test the control accuracy of our aircraft. The tower requires that the relative position of the J-9 behind us be 5 centimeters forward. Take less? ??If the telescope hadn''t been hanging around his neck, Marat might have dropped it with a shake of his hand. 5 centimeters. ?Lin Haijun repeated it in English, and then admired the dumbfounded expression of the Arab man in front of him For the JJ-9Y dedicated to the performance team, Sun Huizhong creatively installed a radio rangefinder customized from Electronic 14 on the nose of the aircraft at the position originally reserved for the radar, which can directly display the 120 range of the front hemisphere on the aircraft''s HUD. The relative direction and distance of the inner target. Compared with radar, this gadget has a range of no more than 100 meters, but it is better at tracking up to five targets at the same time with higher accuracy. It is completely customized for formation flying performances. ?Combined with the turbojet 14B engine with fast and accurate throttle response, the aircraft can completely fly in formation with centimeter-level accuracy. ?Of course, since there is no FADEC, the engine is still controlled independently by the throttle stick, so this gameplay requires very high manual skills from the pilot. ?Given the training level of the Sudanese Air Force, it is probably difficult for any pilot to be able to achieve this level. and. The device itself is not small, so it cannot be installed on the combat trainer type. In fact, even the advanced coaching type is not really needed. After all, except for the performance team, there are no scenes that require pilots to make such outrageous actions as "nearly 5 centimeters". Even mid-air refueling does not need to be so precise. But the psychological impact this conversation had on Marat was real. ? He ??was hesitant just now and blurted out almost without thinking: So, what about the price? How much do you want to sell this aircraft for? ?Marat calculated the budget that the president had approved for him before leaving, and asked a little uncertainly. ?According to his experience, if something looks good everywhere, its only drawback may be that it is expensive. Fortunately, China accepts various flexible transaction methods. Also, this is just the first prototype after all. When can the mass production model be officially delivered? ?When he heard these two questions, Lin Haijun knew that his aviation industry could be saved. Even if they do not receive cash in foreign exchange, in the barter transaction model, other domestic units will give them money in the form of fund transfers. For Guihang who is struggling to survive, as long as it is money, it is good. Including necessary spare parts and training, the unit price is US$8.5 million for the advanced trainer model and US$10 million for the combat trainer model. As for delivery, almost all subsystems on this aircraft are relatively mature models, and there are relatively few test flight subjects required before mass production. According to conservative estimates... delivery can begin within two years. In fact, based on the current timetable, the finalization cycle of JJ9 is even shorter. Just leave some room when speaking. ? Guizhou Airlines really cannot afford the liquidated damages for delayed delivery... If thats the case ?The price Lin Haijun said made Marat''s eyes light up: I think we can discuss more specific details of the transaction. (End of this chapter) Chapter 501 If China can do it, so can I? Chapter 501: Going to China, can I do it too? In the context that the country has regarded the aviation industry as a key development area, aircraft export is naturally a big event. ?In particular, the Sudanese Air Force purchased 12 aircraft at one time, as well as corresponding consumables such as various types of ammunition, with a total value of more than 150 million US dollars. ??Although the transaction is conducted in the form of a deduction for the payment of the oil exploration rights contract, in any case, spending less means making more. Putting it in the context of the late 1990s, it was a lot of money. ?Hence, this aircraft, which caused little stir during its first flight, received some decent media publicity midway through its test flight. ?Of course, the focus of publicity is not only the JJ-9 model itself, but also Guihang Industry, which is actively carrying out self-rescue and solving operating difficulties. Originally, after the automobile industry went into decline, it was difficult for them to continue to maintain normal production and operations. Just a few JJ-7 orders every year are simply not enough to support such a huge enterprise. At the same time, for the Aviation Industry Corporation of China, which is about to face restructuring, it is also completely uneconomical to retain a secondary enterprise for a model that is highly similar to the J-7. Hence, the fate of Guizhou Aviation Industry was already somewhat precarious. As for the success of the JJ-9 model, even if it cannot achieve a rejuvenation, it can at least extend its life. It is always better to delay and wait for changes than to close down the company directly. It can be regarded as giving some hope to some old state-owned enterprises that are also in difficulties. ?Although many of them are indeed behind the times and will eventually inevitably go bankrupt, there are also many companies that are simply unable to adapt to the market environment or simply suffered a run. At last, there is some hope. ?Some people who are more proactive are already contacting Guizhou Airlines to see if they can send someone to get some advice. After all, its not difficult to think of it as long as you use your brain a little more. ?? Guihang has made little progress in self-rescue in the past decade or so. Now that it is suddenly turning around, there must be some unique way. ??Moreover, it is not just domestic companies that are encouraged by this report... South Korea, Sacheon City, Gyeongsangnam-do. ?Chung Woo-seok, head of Samsung''s aviation industry department, is accompanying Industry Minister Kang Seung-jin to inspect the KF16 fighter final assembly line. For todays Samsung, a mere minister is certainly not an important figure. But the situation in Jiang Shengzhen is rather special. After entering the 1990s, with the development of the economy and industrial level, the aviation manufacturing industry naturally entered the field of vision of Koreans. In fact, as early as the early 1980s, South Korea had signed a contract with Northrop to establish a domestic production line for F5 fighter jets. ?But even at that time, this type of aircraft was already outdated. The Koreans were not reconciled and quickly focused on the more advanced F16 fighter jets. However, General Dynamics and Lockheed Martin are still quite concerned about the production line for the F16. ? Jiang Shengzhen, who was born in the United States, played a very important role in it relying on his extensive personal connections. Under his mediation, Samsung Airlines completed the introduction of the final assembly line in 1994 and began producing KF16 fighter jets. Even earlier than China produced the J-11. Such a number one figure can be said to indirectly control the lifeblood of the entire Korean aviation industry, so Samsung naturally has to respect it. At present, a total of 42 KF16 fighter jets have been rolled off the production line. It is expected that a total of 120 fighter jets can be produced before the end of 2000. By the last batch, 78% of the parts will be produced by South Korea. ?Zheng Yuxi introduced, while leading Jiang Shengzhen through the work station where the final assembly steps of the aircraft were being carried out. So, after entering the 21st century, what are your follow-up plans for this production line? After all, the scale of the South Korean Air Force is limited and it is impossible to equip too many aircraft, and it is obviously impossible for the Americans to allow them to export F16 alone. Therefore, after producing the quantity stipulated in the contract at the time, the factory will face the risk of losing business. This is something Jiang Shengzhen doesnt want to see. After the production of the KF16 ends, we plan to transfer the production here to the new training aircraft developed in cooperation with Lockheed Martin. That Golden Eagle project? ?Although Jiang Shengzhen has a wide network of contacts, he doesnt actually understand aviation, and he only has a general understanding of these projects: I remember it has been going on for 5 years, how is the progress? ? ? "This..." ? ? ? Talking about this topic, Zheng Yuxi''s face became a little stiff: We found that the previous plan was too conservative, so we are re-evaluating the plan. Obviously, the progress is not very optimistic. ?At this time, his painting skills need to be tested. As expected, Jiang Shengzhen frowned: Reevaluate? In other words, all previous design plans will be invalidated? ?Zheng Yuxi nodded: The original design plan was based on the British Eagle 100 trainer aircraft, but the performance could not meet the requirements of the originally planned combat training aircraft. So we simply plan to overthrow the entire plan and start over, learn from the technology of the F16, and develop an advanced trainer aircraft with a performance level close to that of the third-generation fighter jet for the international market in the 21st century. Of course, this requires more in-depth cooperation between Lockheed Martin and General Dynamics... ?This is why Samsung Airlines specially invited Jiang Shengzhen to visit. He needs to lobby further to gain support from the United States. Learning technology from F16 Although Jiang Shengzhen doesnt quite understand the specific differences between the two solutions, he can tell that Samsung Airlines hopes to develop a more advanced model, and plans to not only equip the South Korean Air Force, but also export it To other countries: In this case, will there be any conflict with F16 in terms of positioning? Exporting is exporting, but competing with American companies for the market is a matter of course, and Jiang Shengzhen would definitely not dare to do it. The reason why the model was originally determined as a subsonic intermediate trainer model was to avoid this. "Won''t." ?Zheng Yuxi is certainly not stupid and understands what the other party is worried about: The new aircraft will be smaller and cheaper than the F16. It is mainly aimed at third-world countries that cannot afford standard third-generation fighter jets. It can serve as a trainer aircraft and also undertake certain combat missions. ?Having said that, Jiang Shengzhen still hesitated. For him, the point is that those working in the aviation industry can provide a lot of votes. ?As long as the production line can be maintained, it can maintain a sufficient position in the power hierarchy. As for what to build specifically, it is not very important. More advanced models do bring higher potential benefits, but they also bring corresponding risks. ?In the event that R&D is blocked and KF16 cannot be converted to production for a long time after the production is discontinued, the scale of the entire industry may shrink, and its status will be difficult to guarantee. ?Seeing that Jiang Shengzhen did not reply, Zheng Wooxi continued to throw out heavy chips: This route has actually been verified by China. Recently, their aviation industry promotional newspapers have focused on a similar model. The latter said taking out a newspaper from his pocket. Older Koreans can understand more or less Chinese. So it is much more convenient for them to collect information on China. ?? Jiang Shengzhen grew up in the United States and did not have this condition, but he could always see the plane printed on it. At first glance, it looks a bit like a combination of F16 and F18. According to the report here, an African customer has purchased 12 aircraft, and the Chinese Air Force plans to purchase more. Zheng Yuxi knew that the other party did not understand Chinese, so he briefly translated the core content above, and then continued: "The aircraft that China was able to produce before were the improved MiG-21 and the enlarged version of the MiG-21 they called the J-8. But we have been able to produce the third-generation KF16 fighter by ourselves since three years ago. The manufacturing level is much better. Now, since they can build such a multi-purpose supersonic advanced trainer aircraft, and we also have the design assistance from General Dynamics and Lockheed Martin, there is absolutely no reason why they cant build it! It should be said that Zheng Yuxi knows how to stimulate generals. Since the 1980s, South Korea has generally entered an era of extremely high self-confidence. ?Of course, no matter how popular it is, it will definitely not have the courage to compete with the United States. So their key comparison objects are Japan and China. Specifically speaking about the aviation manufacturing industry, considering that the former was authorized to assemble heavy-duty F15J fighter jets more than ten years ago, so in general... Nor have the courage. But facing the latter, Koreans are still relatively confident. I cant compare to Japan, so why cant I compare to you, the Five Permanent Peoples Political Consultative Conference? (End of this chapter) Chapter 502 Hug Comrade Chang Haonan’s thigh! Chapter 502: Hug Comrade Chang Haonans thigh! Chang Haonan, of course, had no idea that his original intention was just to give Guizhou Aviation Industry a hand and bring full confidence to some unplanned countries. Even regarded China Aviation Industry as a rival. ?However, even if I knew it, I wouldnt take it too seriously ??The final product of South Korea''s advanced trainer aircraft is the T50/FA50 "Golden Eagle" combat/trainer aircraft. Technically speaking, this model is somewhat similar to the Xiaolong, a mediocre and even somewhat lackluster light third-generation aircraft. They are considered equally matched opponents. However, for South Korea, FA50 is a big project that requires the full strength of the whole country, and whether it is Coach 9, or Xiaolong, which is not yet clear how to develop on this timeline, for China, or for Chang Haonan Words are all small and casual tasks. There is no comparison. As for the export of arms, in many cases it has little to do with the equipment itself, but is affected by many external factors. From this perspective, Chinas main opponent has always been the United States. There is no need to devote too much energy to dealing with some miscellaneous fish. In fact, it was only in the past two days that Chang Haonan learned that the JJ-9 had made its first flight and had even been successfully exported. Sun Huizhong sent him a letter of thanks in the name of Guizhou Aviation Industry about half a month ago, but the latter was in Shengjing to deal with the turbofan 10 project at the time. After returning, the letter of thanks had been buried under many documents. . It wasnt until he saw a newspaper published by the aviation industry and called the other party to congratulate that he learned about the thank you letter. Finally, he dug it out from under a pile of documents on the table... In short, this incident can only be regarded as a small episode in his daily busy work. Since the JJ9 report was released, one of the most fortunate things about Chang Haonan is that he took charge of the Torch Group earlier than the previously set timetable. ??Although this young company still looks a bit like a grass-roots team at first glance, it is small but has all the internal organs. Except for the core business and decision-making, other matters can be left to the corresponding department leaders (although many of them are just commanders). If not, just because Guihang came back from the dead and learned about TORCH Multiphysics, and through TORCH Multiphysics to find out about the Torch Group, and even found out that Jinling Motors, which has been in the limelight recently, has a close relationship with the Torch Group, they would have used it long ago. Chang Haonan himself was annoyed to death by countless phone calls. As for now... Lets give Teacher Yang Huimei more salary when the time comes... Northern Vehicle Research Institute, Huaishuling, southwest of Beijing. A somewhat special symposium within the weapons industry system is being held here. The reason why it is special is that in addition to the internal leaders of the Northern Vehicle Research Institute and some business backbones, the participants also have many colleagues from brothers (competing) and brothers (competing) for single (opposite) positions (hands). ? And the person sitting at the top of the list is not the leader of the Ordnance Industry Corporation, but Zhang Yong, the director of the System Engineering Department II of the Commission of Science, Technology and Industry for National Defense. Logically speaking, this kind of large-scale meeting within the entire system should be held at the Ordnance Industry Corporation, or simply the Commission of Science, Technology and Industry for National Defense. But this time, it was Zhang Yong himself who specifically requested that the meeting venue be set here. Comrades, you must have read the press release and the good news issued by the aviation industry two days ago, right? In terms of rank, Zhang Yonghe is the same as the person in charge of the second-level enterprise under the Ordnance Industry Corporation, but after all, he has business jurisdiction, so he is naturally in a leadership position. After looking at each other in confusion, everyone nodded. ?Among the export orders signed by the aviation industry system in the past year, 12 JJ-9s are not that amazing. But compared with the Chengjing Aircraft Industry Group, which has sold hundreds of J-7Fs, and the Shengjing Aircraft Industry Group, which has improved hundreds of F4 and F14 fighter jets for the Persians, Guizhou Aviation Industry is really an inconspicuous little player. . Many comrades outside the aviation industry system have even heard of this unit for the first time. Therefore, within the Science and Technology Commission system, the focus of publicity on this matter is actually "the third-tier old military industry enterprises seek to develop and survive." It has directly shaped Guihang Industrial Group into a state-owned enterprise, especially a model of successful reform of military industry enterprises. ? ? Along with the entire aviation industry system, and even the three systems engineering departments in charge of the aviation industry have all benefited from it. The business volume of Torch Group has soared, and it is precisely for this reason.?????But when there is comparison, there is harm. System Engineering Division III is in charge of two businesses, aviation and shipbuilding. Needless to say, the former has almost completely changed over the past year or so, which even makes people wonder if there is any supernatural power to help. Although the shipbuilding industry system is not so exaggerated, it has quietly exported several improved frigates and missile boats, and has also developed a plan for a new generation of main battleships that the navy urgently needs. It is said that the navy leaders are very satisfied. ?System Engineering Department I is another brand of the National Space Administration. It has an aloof status and hardly participates in the competition of these human affairs. Not to mention the Department of International Cooperation, the recent foreign cooperation has simply written the word "making huge profits" on its face. ?As a result, the second system engineering department headed by Zhang Yong is the most popular among the business departments of the Science and Technology Commission. Comrades, know your shame, know your shame! ?Zhang Yong stretched out **** and knocked on the table in front of him sadly: In the past year, the entire military industry has almost completely changed its look. Although our weapons industry system has made some achievements, compared with comrades in several other systems, it still lags behind..." Director, a few days ago, some comrades from Hunan Province went to Guihang to learn from their experience. ??A project leader from the Northern Vehicle Research Institute said: I heard from General Manager Lin over there that they received a lot of technical assistance from a company called Torch Group for the JJ-9 project. I checked this Torch Group specifically and found out that it is a new state-owned enterprise that was established only three months ago. It is also very small in scale. Logically speaking, it should not have such strong technical strength. Another engineer from Inner Mongolia next to him also nodded: Before coming to Beijing this time, I also specifically contacted the Torch Group to ask if they could cooperate in the structural design of heavy vehicles, but... I did not receive any response. ?Everyone says something to me, but the meaning is always the same. ??It''s just that the Torch Group has never seen its end, and there is really no way to contact it, let alone seek technical assistance. This is the purpose of calling everyone here for this meeting today. Zhang Yongs words suddenly silenced the conference room. "The situation of Torch Group is quite special. I can''t disclose too much detailed information, but their general manager, Comrade Chang Haonan, recently happened to be in charge of the development of a large-scale die forging manufacturing process. In fact, it is a project to develop a heavy-duty die forging press. " Through a lot of hard work, I won this project and it landed here, the Northern Vehicle Research Institute. In fact, the die forging press project was handed over to the Ordnance Industry Corporation and was finalized by Chang Haonan and Ding Gaoheng. Zhang Yong was a complete outsider in the decision-making process. ?However, he must still show his value as a leader in front of his subordinates. You cant say that I was hit by a pie falling from the sky for no reason. There is no difference in the result anyway. Comrades, this is a once-in-a-lifetime opportunity. ?Zhang Yong glanced at the conference room in front of him, paused for a moment and then continued: Comrade Chang Haonan is an expert in computational fluid dynamics and computational structural mechanics. Of course, his main focus must be on the development of die forging presses. He cannot spend his time directly helping us with projects. But this project falls within our weapons industry system after all. You can select some key members, preferably those with certain skills in structural calculation, to participate in the heavy-duty die forging press research and development project! Some people soon understood what Zhang Yong meant: Director, what you mean isto steal the teacher How can I be called stealing from my master? The latter immediately said in a trembling voice: This is called uniting around Comrade Chang Haonan, keeping up with the advanced, learning from the advanced, integrating the advanced experience of comrades in the aviation industry system into our own production and research and development work, improving the core competitiveness of the enterprise, and enhancing the core functions of the enterprise..." In short, its just one sentence. Hold Comrade Chang Haonans thigh tightly! (End of this chapter) Chapter 503 Comrade Chang Haonan became a favorite Chapter 503 Comrade Chang Haonan has become a favorite After all, it is an internal meeting of the weapons industry system, so Zhang Yong can say some things more straightforwardly: Here, I can give you an explanation. Comrade Chang Haonan is not only the general manager of Torch Group, but he also personally participated in the research and development of some important projects at the Aviation Industry Corporation of China before this! It can be said that the improvement of the domestic aviation industry and machinery manufacturing industry in the past year has a very direct relationship with him! ?Zhang Yong was mainly worried that the people in front of him still didn''t realize the seriousness of the matter. In these days, the efficiency of information transmission is not very developed. Each military industrial corporation itself has administrative functions, and each one is a small independent society. ??For those who live in it, in theory, they can stay away from the outside world for the rest of their lives and only interact with colleagues and military representatives within the system... So Chang Haonan''s reputation, although already well-known at the top levels of the aviation industry and the Science and Technology Commission, is not inevitable for several other systems. ?Of course I dont mean to say that I havent heard of it at all, but the content I know is probably what is publicly publicized outside... ??Although at the age of 23, it sounds like an exaggeration to be able to lead the research and development of projects such as MA-60, and even seize the opportunity to bring China''s civil aviation industry into a new era. But compared with the other party''s actual performance, these things are really not worth mentioning... Projects in the aviation industry...They have quite a few projects in the past two years... Someone thought for a while and then took stock and said: Just those that have been commended by our Science and Technology Commissions internal notification include J-8C, Turbojet 14, J-10, J-11, MA-60, J-H-7..." Obviously, although some people appear to be calm on the surface, they still take note of the performance of their brother units. ?Looks very much like some top academics who pretend not to study but are involved in life and death in private. ?However, when the fake academic master meets the true academic god, it will be another story. Just like now. For Zhang Yong, this inventory almost reminded him of the great achievements made by the System Engineering Division Three next door over the past year. It is a second injury. ?However, this also happened to help him summarize his competitors. Then, Zhang Yong suddenly discovered... The projects you just mentioned, as far as I know, seem..." ?He hesitated for a moment, but then continued: Comrade Chang Haonan seems to be involved in all of them, and...the extent of his participation is very deep..." After saying this, the entire smoky conference room was pressed to pause almost instantly. Many people stopped smoking in mid-air. Isnt thisimpossible? We are all military workers. After Chang Haonan received the first May Fourth Youth Medal in the first half of the year, many people secretly speculated that he must have made other contributions, but it was difficult to write them down clearly, so he was awarded a grand prize. To show compensation. But if there is a contribution, there is a contribution. You have to be reasonable, right? ??These projects just mentioned, plus the JJ-9 mentioned at the beginning, the responsible units alone cover the whole country. Are you bringing a clone with you? I heard all the news from Director Ding. Zhang Yong half lowered his head as he recalled: And...I remember that the Committee of Science and Technology and Industry held an enlarged meeting of party members some time ago, and only Comrade Chang Haonan was enlarged..." When it comes to this, it is basically solid. The person who just said it was impossible looked embarrassed at first, but it only lasted for a moment, then turned into horror, and then turned into solemnity. The symposium was relatively informal in format, so everyones posture was relatively casual just now.?????But by this time, they had already sat upright. ??If just now everyone had just an ordinary response to Zhang Yong''s proposal, now, everyone is already eager to try it. Such a number one person, even if you can learn 1% of his skills from him, it will definitely help your own project research and development. From hesitation and hesitation to scrambling. Transformation only happens in an instant! In the delicate atmosphere, a representative from the Second Machinery Manufacturing Co., Ltd. spoke first: "Director, our group is currently developing a heavy-duty mining vehicle to solve the long-term dependence on imports of domestic mining vehicles. However, China has not developed a vehicle of more than 100 tons before. We really need to learn some advanced experience in structural design. " Our No. 2 Machinery Factory made a statement first and sent 10 technical research and development backbones to participate in this large-scale die forging manufacturing process development project free of charge! As soon as these words came out, the colleagues around him were immediately shocked. How can people be so shameless? What Zhang Yong just said is very clear. Although they are sending people this time to help others with projects, the core is to learn from experience. How can you say that you support leadership work selflessly? Still "free"? ??Moreover, this kind of project is only in the name of the weapons industry. People often have to bring their own team, and the number of places left for outsiders to participate must be limited. You want 10 with just one mouth? Be a human being! ?However, at this time, we can see the importance of taking a positive stance - Someone responded to his proposal first, so Zhang Yong naturally found it difficult to refuse the other party''s request. "good!" The comrades from the Second Machinery Factory took the lead, ten of them! ?At this time, the heroes from all walks of life who were still a little reserved could no longer sit still. ??Move slowly here, I''m afraid you won''t even be able to drink the soup... Director, after all, mining vehicles are not the main business of our ordnance industry group. Our new third-generation main battle tank has just reached the critical stage of research and development, and it is also a key project of the 9910 project. The time is tight and the task is heavy..." "Director, after the introduction of the Doyle M1 in the past two years, the army immediately fell in love with that chassis. Based on that, we are developing a new generation of army crawler support equipment universal chassis, which is planned to cover all equipment in the range of 30-50 tons. Equipment, the amount of equipment is larger than that of tanks..." ??These are two project teams under the Northern Vehicle Research Institute, and now they can no longer care about the friendship between colleagues. Other units are naturally not far behind. "Leader, according to the advanced experience in the aviation industry, equipment research and development still needs power first. If the high-power diesel engine of our Power Research Institute cannot keep up with the progress, it will affect the overall situation. In addition, we will select the power of the new frigate. We are already lagging behind, but the generator set cannot continue to lag behind us. Our requirements are not high, just five people will be enough..." Soon someone came up with a new trick: "I don''t think we can give someone a free quota for the project. We, Bingcheng First Machinery Group, are willing to contribute a sum of money to support this die forging technology research and development project. After all, the project results will ultimately be of great significance to our heavy equipment manufacturing industry. Obviously this is preparing to bring capital into the group. "If that''s the case, our Iron Horse Group will have something to say. We are not short of money. In terms of equipment, what can compare to a truck?" Looking at the lively crowd in front of him, Zhang Yong, who was sitting at the top, was a little confused for a moment. ?He felt that if the quota allocation was not good this time, then he, the director, might be eaten alive... Shaking.jpg (End of this chapter) Chapter 504 With a budget of 4.2 billion, I have never fought such a wealthy battle! Chapter 504: 420 million in funding. I have never fought such a wealthy battle! ?A few days later, when Chang Haonan walked into the Northern Vehicle Research Institute, he was half pulled and half dragged into a small auditorium almost immediately. ?At this moment he wanted to shout: Im here to hold a project seminar, what do you want to do? But he still didnt shout out after all. Because the auditorium has been arranged like an oversized conference room. Yan Yongnian and several other comrades he was familiar with were also sitting inside. Its just This scene seems a bit too big. At a rough count, there must be about a hundred people. Although this large-scale die forging manufacturing process development project is a false plan to defeat Guo, and even has preparations to revive the soon-to-be-disbanded Ministry of Machinery Industry, it is only a pre-research project after all, and there is no way it can be like this Lots of staff. Whats more, quite a few of them are unfamiliar faces. "Mr. Chang, let me introduce the situation to you..." ?Zhang Yong, who emerged from nowhere, came to Chang Haonan, who had not yet recovered from his daze, and spoke first: Although the die forging press project only temporarily borrows the name of the Ordnance Industry Corporation, hot forging technology is of great help to many projects in the ordnance industry system. So after the comrades from various research institutes learned about it, they all expressed their opinions enthusiastically, hoping to contribute to this project..." ?The reason why Zhang Yong was so anxious to come over and explain to Chang Haonan was mainly because he was worried that he had boasted so much in front of his subordinates before. After all, this project was not something he fighted for, but it fell on him almost inexplicably. ?If this were known, the glorious and majestic image he had created in the past two days would completely collapse. "Well" Chang Haonan was dragged to the main seat in the room by Zhang Yong and sat down, but he still had not recovered from the shock just now. In his original plan, today was supposed to be just a core member meeting involving less than ten people. The main thing is to let the heads of several business areas in the project get familiar with each other''s work, and then unify their ideas. ?Especially now that the fate of the Ministry of Machinery Industry has basically been determined, some people involved in the research and development of die forging presses are in an uncertain future. Every social worker will know that when faced with being laid off, the work efficiency of people who are in constant panic will definitely be affected. So Chang Haonan came over and prepared to give them a reassurance The general meaning is that no matter what happens in the future, our Science and Technology Committee will definitely protect you. If that doesn''t work out, you can still find a position in our Torch Group, and the salary won''t be that bad. As a result, the number of people present is now more than ten times greater. Of course I dont have stage fright. After all, I have been through hundreds of battles and have seen a lot. I just dont know what to say. The Ministry of Machinery Industry is part of the institutional reform of the State Council, and it must not be talked about in such a big occasion until the dust has settled. But Im also preparing other things... Zhang Yong next to him knew that there must be no silence at this time. Otherwise, Mr. Chang will feel embarrassed or unable to step down. So he poured the tea for Chang Haonan himself, sat back down in his seat, and then continued to speak: Although Director Ding said before, the funds and staffing for this project are all raised separately and do not need to be funded by the weapons industry. But to put it this way, Mr. Chang, you can come here to do projects, and comrades cant really get nothing. So in order to show support, a total of 110 people have been hired from institutions under the weapons industry system, all of whom are researchers in mechanical design and structural mechanics. They will directly join Mr. Changs project as non-staff personnel and will all be under your command! ?This statement highlights a high emotional intelligence. Combining the previous conversations in Ding Gaohengs office, it was not difficult for Chang Haonan to guess that the other party wanted these people to learn something by participating in this project. This can be seen from the fact that most of the faces in the conference room are young and middle-aged. The situation is similar to the situation at Turbofan 10, except this time people came over on their own initiative. ?But having said that, these people did solve his urgent need. Originally, due to manpower limitations, many R&D links that needed to be implemented into trial production could only be carried out after the new year and the Equipment Industry Department was officially established. Chang Haonan worried about this for a while, and finally adjusted the research and development process. But now No need! ?However, the surprise is not over yet. Zhang Yong added: In addition, various units under the ordnance industry system have also raised a total of 420 million yuan in funds as project funds to support the die forging press project! As soon as he finished speaking, the entire small auditorium burst into warm applause. ?At this time, Chang Haonan has completely recovered his thinking ability More than 400 million yuan in funding! From a purely quantitative perspective, its not bad. ??For the Taihang project in Shengjing, the amount of funds approved at this stage is more than an order of magnitude more. But more than 400 million was a concentrated injection of funds at the very beginning of the project. And it must be counted as horizontal funds provided by enterprises. These days, as long as you complete the project, almost no one cares about the specific use of horizontal funds. ? Among other things, the "project team commission" that is compliant and legal can even be raised to one-third or even higher. ??If you are starting a company, all of it must be considered original stock. Anyway, I am very grateful to the comrades in the ordnance industry system for their recognition and support of our large-scale die forging manufacturing process development project. Chang Haonan also organized his language and took over what Zhang Yong said: In this case, I wont say too much if Im pretentious. During the project research and development process, I will do my best to arrange jobs that best suit your abilities for all participating comrades, and ensure that all staff, both staff and non-staff, are treated equally! There was another round of prolonged applause. But then, Chang Haonans tone changed: Of course, as the project leader, I have to say ugly things first. No matter which department you come from, since you have joined our project team, you must obey my command in terms of work... Although both parties knew the other''s inner thoughts, and both knew that the other party knew their own inner thoughts, in the end the layer of window paper was not pierced. Hence, Chang Haonan still used the term high emotional intelligence. Translation is: As long as the project is done well, you will definitely learn something and take it back. Then, I, and Comrade Yan Yongnian, the vice president of projects from Qinghua University, will introduce to you the specific situation of this heavy-duty die forging press project, as well as the detailed division of labor in the research and development content! Originally, for a project with insufficient resources, Chang Haonans plan was to concentrate on some key technologies in the pre-research stage, and then transfer to full-scale research and development after the project was officially approved. But now... Laughing to death, I have never fought such a rich battle! (End of this chapter) Chapter 505 Die forging press, project restarted! Chapter 505: Die forging press, project restarted! ?Originally, the people Chang Haonan planned to meet today were all seniors who had been engaged in the design of die forging presses more than ten years ago. They were actually more familiar with the situation than he was, and they could get straight to the point. But with so many helpers suddenly added, the situation deviated somewhat from what was originally expected. Although these people should also be experts in structure and machinery, they can only be said to have mastered the necessary basic knowledge and generally meet the needs of the development of die forging presses. But if it is to be truly implemented into project development, after all, there are still very few people like Chang Haonan who can seamlessly switch between different research directions. So it is necessary to give an overall overview of the entire project. Zhang Yong next to him thought that today he would just clarify the specific participation of each unit in the project, but he did not expect that Chang Haonan would directly increase the intensity on the first day he met with everyone. But in this situation, how could he possibly object to Chang Haonan''s intention? ?Therefore, after only a moment''s hesitation, he announced to the more than 100 people present that the meeting was temporarily adjourned so that he could go back to get necessary items such as paper, pen, and computer. Everyone in the arms industry had already been reminded of the importance of this opportunity a few days ago. Although they were a little surprised by the rapid progress, they all got up and quickly left the venue in accordance with Zhang Yong''s request. The huge small auditorium quickly returned to peace. Yan Yongnian, who was sitting at the long table closest to Chang Haonan, watched the crowd leave neatly from the door, and sighed with emotion: He must be the big brother of the military-industrial system...look at his combat power... Although he did not continue talking, he obviously remembered what happened to the die forging press back then. ??If the machinery industry system at that time could be a little more united, and Mr. Shen Hong would not be squeezed out, this project might not have been abandoned halfway. The subsequent data destruction was obviously deliberately done by someone, which illustrates some problems... ?Hearing others praise the military industry system, Zhang Yong, who is one of them, is naturally proud. But Chang Haonan was by his side, so it was not his turn to be distracted. Whats more, my own family members know their own affairs, and they also face their own difficulties. Professor Yan doesnt have to say that. Zhang Yong scratched his hair in distress: The weapons industry system is so active this time because it feels the pressure. It is said to be cooperative participation, but in fact it is to learn from your side... I also hope that Mr. Chang, Professor Yan and other comrades will not hesitate to provide guidance..." ??Now that there are only a few core members present, some topics that were inconvenient to talk about just now can be discussed. Yan Yongnian has experienced so many years of ups and downs, and naturally knows that the so-called "learner" is mainly Chang Haonan. They just happened to be present, so they were added behind, so they did not reply. Learn from each other and make progress together... ?Chang Haonan just picked up the tea cup and quickly waved his hand to Zhang Yong and said. On the one hand, he said this because he had to be modest no matter what, but on the other hand, he really had this idea. ?Although the scope of his past research was generally broad, it was basically limited to things flying in the sky. The main business of the Ordnance Industry Group, including this heavy-duty die forging press, should be regarded as "running on the ground." Although they remain the same, there are still some differences. Besides, this "progress" does not necessarily have to be at the technical level... ?However, Chang Haonan himself could say that Zhang Yong could not take it seriously. He immediately said with a solemn expression: Mr. Chang, although these comrades are participating in the research and development project of the die forging press, I would still like to trouble you if you have the conditions to give me some advice in various aspects... In recent years, the attitude towards state-owned enterprises has been to focus on the big ones and let go of the small ones. However, there has never been a clear definition of what is big and what is small. Everyone is left to figure it out on their own during the operation. "Now in the aviation industry, even enterprises of the size of Guizhou Airlines have been pulled out, and they have become a positive example of the market-oriented reform of state-owned enterprises. The pressure on our arms industry is indeed great. Several major companies will start grouping early next year. Reform, at this moment, time is very urgent..." In fact, Zhang Yong had no choice but to choose to seek help from Chang Haonan. System Engineering Division II is responsible for three areas of business: weapons industry, nuclear industry, and military-to-civilian conversion. ?Due to policy reasons, the nuclear industry cannot develop just as you want. Although there is no performance pressure, it is impossible to achieve any results in a short period of time. ?The conversion of the military to civilians was indeed a hot topic more than ten years ago, but now it is the late 1990s. All those who should have been transferred have already been transferred, and the bonus period has long passed. Only the arms industry is left to operate. But the main business of the ordnance industry is ground equipment and construction machinery. Including both military and civilian uses. ?Although it doesnt sound too high-end, its just a low threshold and its not easy to do well. ?Even, because the threshold is low and not too sensitive, many countries that are not competitive in fields such as aerospace can actually point out their expertise in this area. For example, Germany, Italy, Sweden, Japan and even South Korea are all strong competitors. Even before Chang Haonan was born, the aerospace and even shipbuilding industry could still play a cost-effective role. After all, these things are still a seller''s market. As long as you can get the things out, you don''t have to worry about selling them. Didnt you see that even helicopters made in India can be exported? But the weapons industry does not even have this condition. Originally a step slowly, and now he was pulled further and farther, Zhang Yong must be anxious to get angry. Dont worry, I know a lot about this. ?Chang Haonan is already very familiar with this gameplay. It would be better to say that this is the way of cooperation he expected: In the aviation industry, I am working on a new generation of aviation engines, which is actually a similar idea. ?The original intention of this sentence is just to stabilize Zhang Yong''s mentality, but I have to say that it is a bit Versailles. So he got a complicated look from Zhang Yong, as if he were looking at a monster. ?While a few people were chatting, the 100 people who had just left to get supplies for the meeting also returned to the small auditorium one after another. A few people ended the topic in a very tacit understanding. The first technical seminar on the research and development of die forging presses officially started. The basic knowledge of die forging presses and past research experiences were naturally introduced by Yan Yongnian, who knew the situation best. You are all experienced researchers in the field of military research. I will not say more about the significance of hot forging technology and heavy-duty die forging presses to the national economy and industrial production. After all, Yan Yongnian has been a professor at Qinghua University for more than 20 years. Once he starts teaching, even if he is just sitting in his seat, his whole temperament changes suddenly: Now, Ill start directly from the basic principles of the die forging press Following his introduction, two schematic diagrams were displayed on the curtain of the small auditorium. The basic principle of a hydraulic machine is Pascals principle learned in junior high school physics. Two closed chambers filled with working fluid and equipped with plungers or pistons are connected by pipes. When a force F1 acts on the plunger, an upward force F2 that is much greater than F1 will be generated on the large plunger, causing the workpiece to deform. The picture on the right is the simplest structural diagram of the hydraulic press body. The first part is obvious knowledge to people here, so Yan Yongnian just brushed it off. Soon, the content of his narrative entered the part about past research experiences. "In the late 1980s, under the leadership of Academician Shen Hong, we designed a 68,000-ton heavy-duty forging hydraulic press. The main body adopts a prestressed steel wire winding structure. The frame is composed of upper and lower arch beams and columns. It is connected by steel wire ropes. They are intertwined..." "Because the research at that time was stopped midway, and some key technical data were later lost, so now, after we have sorted out the remaining data, we have concluded that the main problem with this plan is the stress distribution of the steel wire winding layer. It is difficult to make it uniform, and the requirements for manufacturing and assembly accuracy are extremely high..." At the end of the introduction, the situation is very similar to what Chang Haonan learned before. Just added more details in some details. Professor Yan. ?Chang Haonan finished writing the last stroke in his notebook, then raised his head: "I just did some calculations in my head. In this kind of prestressed steel wire wound structure, the unevenness of the stress in the winding layer should be positively related to the frame structure, that is, the span between the upper and lower arched beams. And the larger the span, the better the span. The alignment requirements for arched beams are also higher. From this point of view, this structure should be more suitable for small and medium-sized presses with lower pressure, so why did you choose this route for an equipment of nearly 70,000 tons? Is this... Yan Yongnian was stunned by Chang Haonan''s quick response. He turned his head and looked back and explained: "We originally planned to continue the three-beam and four-column structure of the 10,000-ton hydraulic press, but this structure was not able to withstand eccentric loads. During the use of old equipment, we found that the eccentricity under the maximum load can generally reach 100% of the maximum span. Third, tilt and horizontal displacement are likely to occur between the movable beam and the workbench under unbalanced load. This is still the case for a 10,000-ton press. If the 68,000-ton press still uses this structure, the problem will only become more serious and it will not be able to be put into normal production at all. Chang Haonan lowered his head and thought for a moment, going through the relevant knowledge he had read before in his mind: What about the plate and frame combined structure? I remember that the Soviet Unions 75,000-ton press, including the 65,000-ton die forging press exported by the Soviet Union to France, should all have this structure. "We have also tried this kind of rack, but found that the structure is complex, there are many connections, and the effective area of ??the rack is greatly weakened. Moreover, in the multi-body modeling process, the processing of redundant constraints and prestressing is extremely complicated, which is completely beyond the scope. Our theoretical level at that time. Speaking of this, Yan Yongnian showed some regret: Let alone production and manufacturing, even the design work has just started, but it cant continue at all. ?However, after hearing this explanation, Chang Haonan''s eyes lit up - What he is worried about is actually the difficulties in production, processing, and material technology, which are difficult for him to deal with in a short time. If the difficulty lies in multi-body dynamics analysis, this is exactly the part I am good at He looked at Yan Yongnian not far away: So, I think we can try using the board and frame structure again! (End of this chapter) Chapter 506 Just right, a little research Chapter 506 is just right, a little research This kind of discussion about the choice of technical route is naturally not easy for most researchers who have just begun to understand the situation of this project to interrupt. Only a few people with whom Chang Haonan originally planned to meet were able to participate in the discussion. Although several old comrades worked together under the leadership of Academician Shen Hong more than ten years ago, after the die forging press project was suspended, these people were scattered to several different research institutes far apart across the country for various reasons. mechanism. ??Although they are still more or less continuing to study heavy-duty hydraulic presses, there is almost no academic exchange between them. So in fact, they now know no more about each others research content than Chang Haonan, who met for the first time but had read the materials specifically. ?So, before Yan Yongnian could even think of how to speak again, another voice sounded: My supervisor and I have systematically studied the plate-frame composite structure rack for a period of time in the past few years. The speaker was a young professor from Central South University of Technology, Han Huiming. He is only in his early 30s, so of course it is impossible for him to have participated in the research and development of projects ten years ago. ?However, his mentor was one of the important experts responsible for the overall design of the rack mechanics at that time. The old man is too old now and in poor health. He really cant make the long journey from Hunan Province to the capital for meetings, and he is unwilling to be an outsider and watch Chinas own heavy-duty die forging press come to fruition. So he simply sent his most proud disciple here. It can be regarded as settling a worry. ?Han Huiming held a can full of tea in his hand. After everyone''s attention was concentrated, he continued: The biggest difficulty in research in this area is the lack of practical experimental methods. "Board and frame composite structures are faced with giant hydraulic equipment of more than 30,000 tons. Due to the amplification effect, it is impossible for us to use a scaled model to judge the stress of the actual equipment. But if we conduct a 1:1 In actual testing, it is difficult to measure the local stress of large-sized components. ??While Han Huiming lowered his head to drink water, Zhang Yong, who had been listening quietly next to him, interrupted: If this is the case, how have other countries overcome this problem? ?Although he has already moved to an administrative position, he also graduated from a mechanical design major in the past, so he still has some basic concepts in his mind. ??In a place like the Commission of Science, Technology and Industry for National Defense, if you really have people who are completely ignorant of technology as the supervisor, many tasks will not even be able to be carried out. ?Han Huiming quickly put down the cans and bottles again and solemnly replied: "The traditional method is to design from a theoretical level first, and then conduct actual destructive tests on key weak parts of the whole machine to demonstrate the feasibility of the theoretical calculations, and then assemble the loose parts into large components step by step. During the process, the Key large components undergo the same testing, which is why the French chose to purchase a finished device directly from the Soviet Union instead of developing it independently. " "Our country''s foundation in this area is already very weak, and it requires a lot of time, material and financial resources. Zhongnan Industrial is not a school with deep pockets, and our research team has no say in the allocation of funds, so... the research progress has been constant. Its all relatively slow. "However, now that Mr. Chang has enough funds and manpower, as well as the support of comrades in the ordnance industry system, I feel that we are fully qualified to promote technology research and development in this direction. After all, rack modal analysis and dynamic design are Blocks are not only useful here, but also have great significance for other equipment manufacturing industries in the future. Non-destructive stress testing methods, Chang Haonans impression mainly includes magnetic measurement and diffraction methods, but the accuracy is average and in some cases cannot even be quantified. While destructive stress testing is accurate and simple, it is a complete miracle of strength. ?The operation is extremely complex, and only one site can be detected at a time. If there are multiple locations on a workpiece that need to be detected, one sample will have to be destroyed for one test. ??In short, it''s okay to do it once or twice, but if he wants to make the entire forging press purely by this method, he will probably have hundreds of millions of funds on hand... Not quite enough. What if we use numerical calculation method? Before Chang Haonan could speak, someone mentioned what he was best at. "We have also tried, and even some time ago, we tried using the software developed by Chang Corporation, but it is always difficult to converge on the results after entering the calculation step. Many parts need to be simplified during the modeling process, and the reference value is very limited. Everyone''s eyes naturally turned to Chang Haonan. This problem does exist. He nodded bluntly. Although there is no computer in front of him, Chang Haonan can now review typical problems that may arise during the simulation process even in the human brain: The plate and frame combined die forging press has too many structural parts and the contact problem is too complex. The traditional tetrahedral model composed of structured mesh often has strange stress concentration points at the nodes on the edge of the contact surface. If there is a weak slip between two objects in contact, penetration will easily occur, and if the overall component undergoes relatively large deformation, node self-locking will occur. In short, it is normal for problems to occur. Hearing Chang Haonans almost unthinking judgment, most people couldnt help but have expressions of regret on their faces. After all, this seems to mean that we can only return to the traditional method just mentioned by Han Huiming. But Han Huiming was the opposite. Having conducted research in this area, he knew that Chang Haonan could point out the essence of the problems they faced so calmly and quickly, indicating that the latter had considered this issue before. Definitely come prepared. If this is the case, the preliminary research of this project may last for a long time... Even if funding issues are not considered, destructive stress testing cannot be done quickly... An expert from the Northern Vehicle Research Institute who is relatively knowledgeable in this area sighed and said. A few years is indeed too slow, and the timetable I set cannot wait for such a long time. Chang Haonan waved his hand, sat upright, and said to the more than a hundred people participating in the project in front of him. Not only was the weapons industry system impatient and couldn''t wait too long, in fact he couldn''t wait either. ?According to the timetable of 601 and Sukhoi, the manufacturing process of the rear fuselage bulkhead of the J-11A/Su-27SM will be upgraded from the current segmented manufacturing and then welding to integrated die forging. In addition to reducing working hours and improving production efficiency, it is also a technical preparation for the manufacturing of next-generation fighter jets and future large passenger aircraft. It doesnt matter that Damao already has two 75,000-ton hydraulic presses, but if the progress of Chinas heavy-duty presses is hindered, it will inevitably have an impact on the localization progress of many subsequent models. Han Huiming, who had been looking forward to it for a long time, his eyes lit up He knew that Chang Haonan was too busy to micromanage all R&D work. In this way, different people must be actually responsible for each subsystem. The board-frame composite structure is the research direction that he and his tutor have been adhering to over the years. ??If he can really continue with this configuration, on the one hand, it will put an end to the teacher''s regrets in his early years. On the other hand, for him, a newcomer in an unpopular major, it will almost be enough to change his destiny. Not to mention anything else, the statement "responsible for the main frame structure design of China''s first super-heavy die forging hydraulic press" is absolutely valuable. Stress testing of oversized workpieces is an engineering problem. Since the engineering problem cannot be solved, we can change our thinking. "In terms of numerical simulation technology, the latest version of the TORCH Multiphysics software, which will be released soon, just adds unstructured overlapping grids. This definition method allows the use of hexahedral models in the model, and the model boundaries are flexible and variable, which is very suitable for dealing with Calculation of multi-body relative motion and large deformation problems. On the other hand, from a more basic mathematical theory, I happen to have done some research on the direct constraint method to deal with geometric nonlinear problems. In this way, although it is still impossible to completely break away from the experiment, most of the work can be done on paper, and the accuracy and quantity requirements for stress detection will be greatly reduced! Actually, this is indeed a coincidence. The purpose of releasing a new version in such a hurry was to solve the problems faced by Institute 601. But just enough to eat two fish. But to outsiders, this seems like "Mr. Chang has figured everything out." Zhuge is nothing more than this in his second life. Then... our technical solution is initially determined to be a plate and frame combination? Yan Yongnian was in charge of the overall design back then, and he had no preference as to which route to take. ?As long as the die forging press can be built. Thats right, let me assign the work tasks. Following Chang Haonan''s final statement, the atmosphere in the entire small auditorium became serious. "Currently, since the Jiangcheng Heavy Machine Tool Factory responsible for the actual manufacturing of the forging press has not yet been officially in place, the personnel are currently divided into five research groups, which are responsible for the overall structural design; load-bearing and deformation analysis; force flow transfer simulation and monitoring; hydraulic, Preliminary research on auxiliary systems such as sensing and industrial control, as well as the development of supporting equipment required during the installation of the die forging press body, such as tooling trusses. The specific person in charge of each group is... For Chang Haonan, this process is already familiar. Next, its time to have fun again! (End of this chapter) Chapter 507 License application from the UK Chapter 507 License application from the UK ? ? If it is easy for Chang Haonan to undertake a turbofan 10 project, then adding this heavy-duty die forging press project, it does start to make him feel a little busy. After all, there are many things in this area that he needs to learn while doing. As the level of participating projects gradually increases, and the difficulty and scale continue to increase, Chang Haonan encounters a situation more and more. That is, before completing the project itself, he needs to first build the tools needed for the project. If doing a project is like rummaging through a box, then at the time of the Turbojet 14 and J-8C, it was about the height of a hurdle, and you could climb over it with two legs and a run-up. ??But when it comes to the turbofan 10 and the super-heavy die forging press, it becomes a high wall. If you want to get over it, you have to use some tools. Of course, from another level, this is also a good thing. There are many tools that can circumvent the wall. ?? And if Chang Haonan has already built a ladder when everyone else is pole vaulting, then he can use it to collect tolls from people who want to climb over the wall later. You can even pull out the ladder. ?Shortly after Chang Haonan returned to the Computing Center of Beihang University from a meeting at the Northern Vehicle Research Institute, he met Yang Huimei, who came specially to find him. The visitor first handed a folder in his hand to Chang Haonan, then took out a few wrinkled envelopes from his bag and placed them on the table. Mr. Chang, I think its time for you to find a dedicated secretary. Yang Huimei said and pointed to the envelopes: I found these in the mailbox at the door. Although the things that can be put there are not important, it is not a problem to keep them piled up. There is no way. It is clearly stated above that there are level restrictions on the deployment of full-time secretaries. Chang Haonan said as he put down the folder and looked at the sender of the envelope. They are indeed units that I have never heard of, and the content is nothing more than congratulatory letters and correspondence. ?However, Yang Huimei is right. Although this kind of thing is red tape with no practical significance, it still needs to be dealt with. So, Chang Haonan thought for a while and then continued: Now our group office only has an office director. He is so busy just handling the coordination work between various departments every day that he has no time to eat. When the manpower is enough, we will arrange a general section chief..." Since the mid-1980s, the requirements for secretarial staffing have been very strict. But at the departmental and bureau level, there is indeed a need for such a person to help leaders handle affairs. Therefore, over time, the office director/deputy director, or the section chiefs of the comprehensive departments under the office have become the de facto team of secretaries. Chang Haonans office director was transferred from a technical position and was a lubricant between various business departments. It was impossible for him to do odd jobs exclusively. Then we can only set up another comprehensive department. You came here today just to tell me about this, right? Chang Haonan, who was worried that Yang Huimei would continue on this topic, quickly changed the topic As a management professor, it was indeed difficult for his graduate students to find jobs even in the 1990s. So as this topic continues to develop, it is easy to go into a weird direction... Thats not the case. I received this email before I got off work today. ?Yang Huimei gestured towards the folder in front of Chang Haonan: Sent from the UK, I want to ask if we can sell a numerical calculation tool. I dont understand the specific technical content, so I brought it to you. Out of curiosity, Chang Haonan opened the folder. Some time ago, a user agreement that complies with EU law has been compiled. As long as users choose to accept it, they can obtain trial rights for TORCMultiphysics. In order to cope with Europeans who love official document formats, Torch Group has even set up a standard format trial application form on the corporate website. More than 85% of the content is multiple-choice questions. All you need to do is fill it out and submit it. So generally, the business departments can handle these matters themselves. Even if you cant understand a foreign language. So, there are not many times when Yang Huimei needs to make a special trip. ?Furthermore, Torch Group currently only has one product, TORCH Multiphysics. There was actually a letter inside the folder. Professor Roger Elinor from Cranfield University. ?The letter mentioned the paper Chang Haonan submitted to CMAME. The other party said that he was very interested in the research content of the paper, but he did not have the tools at hand to carry out engineering application research. ?After being stunned for a moment, Chang Haonan realized that the other party was probably the reviewer of his article. ?Of course, in principle, it is not in line with academic ethics for reviewers to contact the author directly before the article is officially published. ?But no one has ever cared about it. What they mean is that they want to buy the professional enhanced version of the TORC Multiphysics software. ?After reading the entire content, Chang Haonan concluded to Yang Huimei: The unstructured grid technology mentioned in it will only be available in the latest version we will release soon. Why dont you just fill out the form? Why go to all this trouble..." The latter shook his head helplessly: Then I just ask the marketing department to write a letter rejecting them? The professional enhanced version of the software needs to be reviewed by Chang Haonan himself before being approved. However, he said from the beginning of its release that it would not be authorized for foreign users for the time being, so Yang Huimei did not even ask. In fact, most users may not even know that there is a Pro+ version on top of the Pro version. ?Chang Haonan closed the folder and put it aside: Well, yes, but you can attach a letter explaining the situation at the end. "say what?" ??Yang Huimei said as she took out the notebook and ballpoint pen she carried with her to take notes. Lets just say that the professional version of TORC Multiphysics can provide limited unstructured grid functions for theoretical research. They can go to the companys official website to fill out the application form. "However, for further engineering applications, due to the restrictions of our country''s laws and regulations, relevant technologies and engineering tools cannot be directly transferred to foreign users. If the other party really needs it, they can submit a project cooperation application to us and conduct it in the form of joint research, or Go directly to our companys official website and purchase numerical calculation services in the Engineering Calculation category. Thats all? As a veteran who often participates in various meetings, Yang Huimei has excellent sketching skills. She almost completed the record shortly after Chang Haonan finished speaking. Yes, its an advertisement for our company. But...will they really cooperate with us in research and development? ?Yang Huimei did not close the notebook immediately, but raised her head and asked with some confusion. This time... definitely not. Cranfield University is a research institution sponsored by the British Air Force. The project is likely to be sensitive and it is not easy to engage in international cooperation. Chang Haonan slowly shook his head: Furthermore, even after the Airbus incident, the British are not so easy to put down their arrogance and engage in reciprocal cooperation with China. Old Europe is very tall. Then this letter wont be of any use? Its really of no use at the moment, but the change of concept is not something that happens overnight. ?Chang Haonan paused for a moment, unscrewed the mineral water bottle and took a drink of water: "This time the British thought of buying us a handy tool. Their attitude has changed compared to before. We just need to continue to exert this influence in a subtle way. Sooner or later, they will be willing to come over and ask for cooperation. " (End of this chapter) Chapter 508 Even the mother who changed it to straight 9 doesn’t even know her. Chapter 508: Even the mother who changed the straight to 9 doesnt even recognize her On November 11, 1997, version 0.0.2.0 of TORCMultiphysics software was officially released. The reason why there is such a peculiar version number is because the first 0 represents the public beta version, the second 0 represents the Proplus version, and 2 represents the second major version. This is an update push only for Super Big Cup users. So the version number for Dabei users is still 0.1.1.0. But even so, this has become a watershed in the field of engineering numerical calculation. ??The new gridding technology introduced by Torch Company in this update is combined with a dimensionality reduction algorithm for strongly nonlinear partial differential equations. From the perspective of later generations, it was from this moment that numerical calculation, a tool whose original application scope was limited to a very few fields and was mostly used for reference and law analysis, was officially elevated to the level of "indispensable" . ??It also marked the first shot of Torch Group from obscurity to global fame. At least, thats what it said in the History of the Development of Data Computing published decades later. ?However, Chang Haonan himself, who occupies more than one-half of the book, scorns this statement. The author said that although the software version 0.0.2.0 is very important to him and Torch Group, it is not as intuitive as what is written in the book. After all, the Super Large Cup was only released to a very small number of users at the time, and 95% of users had no chance to experience it, or even knew that this model existed. A company or a product cannot exist in isolation from the general environment. What really helps Torch Group go global is the continuous development and progress of Huaxia Industry driven by it. As the unit most closely related to Chang Haonan, China Aviation Industry Corporation almost naturally became the first recipient of the new version update. The luckiest among them is Factory 122 in Bingcheng. Because the installation CD of the new software came with Liu Hongbo, who had just been appointed as the manager of the numerical calculation business department by Chang Haonan for a few days. ?Poor Professor Liu was just dragged into the trap by his junior brother with a generous salary, and the first thing he did was to go on a long business trip. And I have to fly back to school for two classes every week. The textbook was actually written by the other party. It is simply unreasonable. ?Of course, the complaints are just what they say. The five-digit monthly salary in the late 1990s was still not good enough. So the difference is still drawn. Professor Liu, I have admired you for a long time. It is a great honor for you to come to our Ice City in person... ?The person who came to greet him was Cui Wenxu, the general manager of Bingcheng Aircraft Industry Group. ?Although he got his position by building cars, Bingfei is still a unit in the aviation industry system, and its core is still the helicopter business. ? Bingcheng Motor''s achievements can consolidate its position within the Bingfei Group. ??But if you want to go further in the aviation industry system, you still have to get the helicopter as a sign. Therefore, although Cui Wenxu only knew a little about helicopters, he still showed enough respect for Liu Hongbo, who came to work on the project in person. In fact, as far as the latter''s identity is concerned, it can even be said to be a bit too enthusiastic... Hello Mr. Cui, could you please come out and make a trip in person... As he spoke, a long breath came out from in front of him, and his glasses were covered with a layer of frost. In mid-November, the temperature in Ice City was already below zero. Chang Haonan, a Northeasterner, could never think of reminding others to pay attention to the temperature. So Liu Hongbo, who set out from the capital, was unprepared for this. When I got off the plane, I went directly into the terminal and got on the bus, so I didnt feel much. Now I got off the car and stood at the gate of Factory 122 for a while, feeling almost numb from the cold. But in order not to affect the image of Torch Group, we have to hold on... Fortunately, Cui Wenxu saw that Professor Liu was not well equipped and could not adapt to the dry and cold weather in the Northeast. He took off the leather hat on his head and handed it to him, and then walked quickly into the factory together. As he walked, he did not forget to introduce an old man who had been following him just now. ?Although he looks ugly, he is energetic. This is Comrade Guo Jingshan, the person in charge of the Zhi-9 technology introduction project and the chief designer of the Zhi-9C, Zhi-9 armed type and civilian H425. Are we going directly to the factory? ?Liu Hongbo looked at the increasingly larger buildings in front of him with some doubts. Even though it was his first time here, he could tell from the tall and unlayered style that this should be a production workshop. Im really sorry, Professor Liu, the design work during this period was all completed in the design studio here. Guo Jingshan, who was walking next to him, replied: "In the beginning, our 602 Institute was just a research laboratory supporting the 122 Factory. Later, although the scale became larger, we still retained the tradition of placing the design room inside the factory..." As he was talking, several people left one after another. Entered the workshop. The spectacle lenses that had just returned to transparency were suddenly covered with fog again. Fortunately, there was sufficient heating inside the workshop, and Liu Hongbo quickly saw the whole picture inside. ?Having done many projects, it is naturally not the first time for him to enter this kind of place, but compared with other places he often visited before, the production line at Factory 122 seems a bit bleak. ??If we only look at the aviation business, then Bingfei and Guifei are basically brothers in the same boat. ?It is located in a remote place and there are no popular models. In the huge workshop, there are only a few scattered helicopters of different versions and models. On the contrary, further away on the production line, there seemed to be more of a small twin-engine propeller aircraft. Ashamedly, our 122 factorys operating conditions in the aviation business are average, so the number of orders is not too many, and most of the work stations are in a state of shutdown. Regarding the current situation of Bingcheng Aircraft Group, Cui Wenxue is generous: "Thanks to the help of Mr. Chang of your company, our small aircraft obtained airworthiness certification from the United States and the European Union without much effort, and then we signed a large order for 30 aircraft. Otherwise, in this workshop, Not a few people could be seen at a glance..." Since the Y-12 is the only aircraft in China that has undergone FAA airworthiness certification before, Chang Haonan had previously involved many technicians from Ice City when he was researching anti-icing technology and negotiating with the EU. Thats why Cui Wenxu knew the ins and outs. Hearing this, Liu Hongbo finally understood why people were so enthusiastic about him. Of course he knows his stuff. He is fairly well-known in Jinghang University. Who would know who Liu Hongbo is after leaving school? He has done many projects in Haojing before. How have you ever seen him personally greeted by the general manager? It was just for the sake of Chang Haonan and the Torch Group. The previous confusion was that Bing Fei did not seem to have any direct relationship with his junior brother. ?But it makes sense now that I think about it. ?Given the various big news that Chang Haonan has made in the past year and a half, the entire aviation industry has probably been influenced by him to some extent. After a brief tour of the workshop, Liu Hongbo took the lead in returning to the topic: Mr. Cui, Mr. Guo, would you like to go take a look at the helicopter design that needs our assistance first? The two people next to them looked at each other, and it was Cui Wenxue who spoke: "Okay, let Mr. Guo take you there to understand the situation. I don''t have a deep understanding of aviation technology, so I won''t go to the layman to guide the expert." ?After a brief farewell, Cui Wenxue left the workshop with a few people. ??Guo Jingshan noticed Liu Hongbos curious expression, so he explained while leading the latter towards the design room: Mr. Cui mainly manages the automotive business, and he basically leaves me responsible for specific issues related to aircraft design. The heads of the groups under the Aviation Industry Corporation of China generally have at least relevant educational background. ??Bingfei Group and Cui Wenxue are in extremely special situations. "I see." Liu Hongbo nodded: Thats not bad. ??If a leader cannot understand what he is doing, it is better to at least know how to let go than to give blind orders. Thats true, if we hadnt made money from selling cars, we wouldnt have been able to afford the money to ask you for help this time ??Guo Jingshan replied with a smile. While speaking, he had already brought Liu Hongbo to a computer in the design room. This is our preliminary plan for the subsequent development of the Z-9 model. If nothing else happens, we may have long-term cooperation..." ??The R&D strength of Bingfei Group is really weak. ?Even though we have tried our best to expand in the past two years, Bingcheng has inherent limitations on development. ??Moreover, it is really difficult for a technical team full of novices to achieve success. It cannot be led by Guo Jingshan alone. So calling in foreign aid is a more sensible choice. Let me take a look. ?Liu Hongbo put aside the hat Cui Wenxue had given him before, sat in front of the computer and started browsing. What surprised him was that the entire document was full of details and very long. Even to some extent, it can be said to be a development plan for the helicopter industry! Should we develop four types of series based on the Z9? Liu Hongbo raised his head and looked at Guo Jingshan, who had been standing beside him. Thats right. The latter nodded immediately: Some time ago, we have solved some defects in the transmission structure of the Z-9 from the prototype, and found that this model has the potential to develop to about 6 tons. "So, our current plan of Bingfei is to rely on the Z-9 prototype to develop four different configurations: assault transport type, special armed type, naval type and civilian type, and then build a complete 4 -6-ton helicopter model spectrum, becoming the leader in my countrys general aviation field! (End of this chapter) Chapter 510 The paper is on the cover again? Chapter 510 The paper is on the cover again? ?One morning a few days later, Chang Haonan, who had just gone to work, opened his mailbox as usual. At this time, the application of email in China is still limited to a few industries, and its popularity is not high. ??And it was basically a spontaneous act by some people, and it did not form an overall norm that later or in European and American countries, emails were regarded as documents with legal validity. ?Its a bit troublesome to face the piles of paper documents all day long, but if you think about it on the bright side, there will be fewer bad things like harassing emails. So when he saw three unread emails in his mailbox, he was a little surprised. ?But if you take a closer look at the content, they are all heavyweight. The first letter was from the editorial department of CMAME, giving feedback on his review comments. So fast? You must know that less than a month has passed since the submission of the manuscript. Anyone who often submits manuscripts to SCI will know that this efficiency is already quite ridiculous. After the brief accident, Chang Haonan clicked on the email, opened the folder where the paper was saved, and subconsciously prepared to revise the manuscript. Based on his experience in submitting papers to SCI in his previous life, even if there are no problems with the content of the paper, the reviewers will raise some issues with wording or grammar. Otherwise, there is no way to reflect the value of being a reviewer. What''s more, since his rebirth, the only thing Chang Haonan has declined is probably his English level. Xu Yang has not changed a word in the main text, so it is normal to make some mistakes. ??But when he switched the page to the browser again, there was no attachment in the email content just loaded. Generally, the review comments will be consolidated into one document and sent. But this time, the content of the email was only a few sentences and a link. The paper does not need to be revised and can be published directly. The link requires Chang Haonan to click on it and finally confirm the format and content of the publication. !! Chang Haonan''s hand holding the mouse shook and he almost threw the email into the recycle bin. ??Although with his current influence, even if he does not publish a single article, he will definitely be able to successfully graduate with a doctorate based on the national defense report. He no longer needs to rely on papers to establish his status in the industry. ?However, if you dont need it, you dont need it. After this wave, the emotional value is always full. ?This is like some leaders, although they do not need flattery from their subordinates, they still like to listen to some flattery content. Don''t need Don''t like.jpg CMAME, as the top journal in the industry, gave a "directly published" opinion, which obviously showed full respect for this research result and Chang Haonan himself. ?While giving a mental evaluation of "fairly discerning", he clicked on the link and confirmed the content and layout of the paper when it was finally published. ?Of course, journals at this time do not publish online in advance. Many institutions, including Beijing Hang University, even subscribe to paper journals. So we have to wait until it is officially published. According to convention, papers submitted in October and reviewed in November will generally have to be scheduled until April or May next year... Just when Chang Haonan was calculating the approximate official release date in his mind, and thinking about whether the Torch Group should make some big news to coordinate with the publicity campaign, he suddenly found another piece of content at the bottom of the link. He was asked to provide a picture for the cover of the first issue in January 1998 Its somewhat of a surprise. Generally speaking, academic journals are similar to regular subscription magazines, and will release corresponding publications in advance. For example, the December issue is basically published in mid-to-early November. So this January issue is definitely the result of forced stuffing. Moreover, it also took over someone elses cover. CMAME is relatively ethical. It only has one outer cover and one outer back cover, unlike some journals that have five or six covers to make money. Chang Haonan had no choice but to silently express his regrets to the author of a paper who had been pushed off the cover by him... After thinking for a moment, he picked up the phone again and called Xu Yang and Yang Huimei. Needless to say the former, she is the one who has appeared on the most cover pages of papers and has experience in this field. Although the latter is the head of the marketing department, he also handles some publicity work. After all, Torch Groups biggest brand is Chang Haonan himself. In the past, there were not many tasks that required additional publicity. Setting up a separate publicity department was a bit wasteful. Yang Huimei has always been the author. Of course the latter refused at first, but it was similar to Liu Hongbo. Considering Chang Haonan and the salary paid by Chang Haonan, it was really good in the end. Want to make a paper cover related to Torch Group? Xu Yang gently straightened his hair, which was a little messy from running upstairs, and sorted out his thoughts: Because we have not signed a sponsorship contract with Elsevier, no obvious commercial promotion content can appear on the cover of the journal. Whats more, CMAME is a top journal and the management is stricter..." "I know, that''s why I brought you two here to see if there is any more subtle way." Chang Haonan replied. ?Yang Huimei, who was sitting next to Xu Yang, was concerned about another issue. Mr. Chang, is your paper on the cover? The cover of the top issue? Or did you jump in line? ?Although her research direction does not involve specific technologies, her SCI papers also have management/operations research (MS/OR) directions, so she still has a concept of these things. At the end of the 1990s, China was not even a major scientific research country, let alone a strong one. ?If you can publish a paper in a less prestigious SCI, you can almost get a teaching position in some ordinary universities. Even second or even third works are valuable in certain scenarios. ??Yang Huimei, as a professor at Beijing Hang University, has only published two or three SCI articles. As for what top issue and what cover... ?That has never occurred to me. Xu Yang turned his head and looked at the stunned Yang Huimei with very puzzled eyes, as if he didn''t understand what she was making a fuss about: Thats okay, wasnt it the same as the last article? What she was talking about was of course the control paper that made Chang Haonan and her the godfather and godmother of DE algorithms. And the last time? ??Yang Huimei does not study control theory, but she has heard that Mr. Chang published a very awesome article before. ?The majors are different, and she has not read the content. I dont even know some of the specific details. ?Of course, she knows that now. Looking at the two monsters in front of her, Yang Huimei felt a sense of powerlessness in her heart. How could I be able to sit down and have a conversation with you two sleeping dragons and phoenix chicks Fu amount.jpg Looking at the somewhat depressed Yang Huimei, Chang Haonan felt that even out of concern for employees, she should encourage her. Otherwise, her work efficiency will be reduced, and she will suffer losses in the end. Actually, publishing papers is just one of the ways to prove your own value. If you think about it from other aspects, Professor Yang can also contribute to the country and society in the business field..." Upon hearing this sentence, Yang Huimei thought it was right. She quickly cheered up and began to discuss the design of the magazine cover. ?How to express the characteristics of Torch Group in a more subtle way. ??The final result is to add an unlogged, calculated cover of TORCMultiphysics software to the cover... After the plan was finalized, Yang Huimei got up and left, preparing to return to her office in another building. But as she walked on the road, the more she thought about it, the more she felt something was wrong. You can also contribute to the country and society in the business field... ?Yang Huimei stopped: Doesnt this mean that I have no hope in academia??? But she seemed unable to refute. Even more powerless... (End of this chapter) Chapter 511 Turbofan 9A ready for extreme potential exploration Chapter 511 Turbofan 9A preparing to tap its ultimate potential ?Chang Haonan certainly didnt mean to look down on Teacher Yang Huimei. But to be honest, the subject of management itself is more practical than theoretical. There is really no need to take the paper too seriously. As a professor of management, being able to arrange jobs for all the graduate students under his command is a reflection of his ability... In short, after sending Xu Yang and Yang Huimei away, Chang Haonan finally took care of the first thing of the day. It also settled a minor worry. ?The paper itself is of course of little use to Chang Haonan, but he is somewhat looking forward to the impact it may have on the Torch Group and even the entire Chinese academic community. ?There are two other emails left in the mailbox. The content of the second email is much more ordinary in comparison. It was Liu Hongbo, who had already started working in Bingcheng, asking whether the technical ideas for helicopter sound field simulation were feasible Currently, the calculation of helicopter rotor noise basically uses the Lighthill acoustic analogy method based on the FW-H equation. "After several days of trying, I found that this method performs well in calculating rotor thickness and load noise, but it cannot be used to solve the nonlinear noise of the quadrupole source, resulting in abnormally high noise during the helicopter''s hovering/forward flight process. And if we completely use experimental methods, on the one hand, the 122nd Factory and the 602nd Institute do not have enough acoustic laboratories for helicopters, and on the other hand, the cost and development cycle cannot be guaranteed..." I am trying to calculate the flow field first, and then determine the rotor vibration through the flow field, thereby indirectly calculating the sound field to get the results, but there are some issues that need Mr. Changs guidance..." ?Chang Haonan gathered his thoughts and began to think about the content of the email. It should be said that the depth of research conducted by Bingfei Group was higher than he had previously expected. The so-called quadrupole source nonlinear noise is medium and high-speed impulse noise (HSI). When the rotor speed is high, shock waves may exist on the surface of the rotor blades and extend to the spatial area. The flow field exhibits transonic and strongly nonlinear characteristics, and will emit very penetrating and discernible pulses. sound. For helicopters, the impact of noise is not just a matter of comfort. Sound = vibration. Since lift is mainly obtained by the rotor, this type of HSI noise may not only cause hearing damage to the members inside the aircraft, but also cause instability factors such as rotor tip flutter, affecting flight safety. ??For military helicopters, excessively loud and easily identifiable sounds can also make it easy to be detected in advance. Helicopters are slow and have poor maneuverability. The core of their survivability is the concealment brought by the height of the treetops. If they are discovered a few kilometers in advance, it will greatly increase the risk of being attacked by concentrated fire. However, in the current 1990s, research on quiet rotors in various countries is generally still in its infancy. ??Although Mi-28, AH64 and other models have tried to use some qualitatively effective technologies, in general, noise still ranks relatively low in everyones performance requirements for helicopters. As long as its not too outrageous. Generally speaking, the best way to suppress HSI is to increase the rotor diameter/number of blades and reduce the linear speed outside the blades. The price is increased weight and complexity of the rotor. Helicopters like the Zhi-9, which already have limited power, and the 122 Factory, whose technological level is far behind that of European original manufacturers, obviously do not have the conditions for this... After thinking about it, Chang Haonan pulled out a few sheets of A4 paper from the printer tray next to him. Anyone who has ever done it knows how frustrating it can be to write formulas on a computer. Immediately afterwards, while sorting out the calculation ideas that emerged in his mind, he began to write furiously: "The FW-H equation has shortcomings in the universality of the research problem. The essence and premise of accurately calculating the rotor sound field is to calculate the rotor flow field. As long as the shock waves and tip vortices that may exist in the flow field can be captured through calculation, acoustics It is not difficult to ensure the accuracy of calculations..." Specifically, you can try to obtain the far-field sound pressure characteristics by integrating the sound pressure value on the surface surrounding all sound sources. The sound pressure value on the surface can be determined by Kirchhoffs formula..." In actual numerical calculations, the integration surface must be discretized into small surface elements, and the integration is performed on each surface element. The final result is the superposition of the contributions of each surface element, and dS is the area of ??the micro-surface element "The information obtained from the flow field calculation can be calculated on the Kirchhoff surface through interpolation and other methods. For the unstructured overlapping grid of the new version of TORCH Multiphysics, a method similar to the generation of hole boundaries in nested grids can be considered To determine the integral surface "Manually given a space surrounding the blade, which is similar to a "hole" in a nested grid, first loop through all the grid points and determine whether the point falls within the hole according to the spatial coordinates. If the point falls within the hole , then mark the point as 0, otherwise it is 1..." As for the flow field calculation, the essence is back to the numerical solution of the N-S equation. This is the core function when the TORCMultiphysics software was created, and I will not go into details here..." This is my understanding of the above-mentioned issues. It is just one persons opinion and is for reference only. And I wish you a successful completion of your project. ?The five pages of A4 paper were written very eloquently and quickly. After briefly checking that the content just now was correct, Chang Haonan put several pages into the scanner. Sheet-fed scanners were invented in the early 1990s and have now entered the Chinese market. ??Although the price is ridiculously high, Chang Haonan is not too poor with money after all, so he still gritted his teeth and equipped each office with one. After scanning it in, he directly sent the content as an attachment to Liu Hongbo in Bingcheng. After dealing with the two things without incident, Chang Haonan looked at the clock on the wall. Its almost time to have lunch. He clicked on the last unread email. This is a routine work report of the Turbofan 10 project. The kind that will be sent out every few days. He planned to have lunch after a brief look. However. Experimental results of flow heat transfer characteristics of special-shaped air film holes ?When he saw this title, Chang Haonan knew that he would not be able to eat his lunch. This research is crucial for the design of combustion chamber and turbine structures of aeroengines. He has previously used the basic control equation of flow heat transfer to calculate the film cooling effect of different special-shaped holes. But this is a research direction that has never been done before, and experimental results are still needed to correct the numerical calculation method. Thats why it has been postponed until today. ?Thinking of this, he couldn''t sit still anymore. He quickly turned off the computer and put on his coat, ready to see the results. ? There is so much experimental data over the past month that it is impossible to send it all via email. In the Compressor Research Center of Beijing Hang University, Liu Yongquan, wearing a blue lab coat, stood in front of two computers recording experimental data. Next to him is Chang Haonan, who is looking at the experimental data attentively and comparing it with his own calculation results. "Judging from the results, for our experimental subjects, the cooling effect of dustpan-shaped holes is better than fan-shaped holes and simple forward-inclined holes. However, the influence of expansion ratio, hole inclination angle and expansion angle on cooling efficiency is still relatively complicated. ?Chang Haonan stared at the two screens at the same time and slowly gave his judgment. Actually, the key is that we do not have the means to directly measure the velocity and pressure distribution in the air film holes. On the one hand, we cannot buy the relevant sensors, and on the other hand, even if they are obtained through special channels, the accuracy cannot meet the requirements..." Liu Yongquan said from the side, obviously still a little regretful. When we engage in scientific research in China, we have never reached a stage where we get everything we ask for. Chang Haonan doesnt really care: The velocity and pressure distribution in the hole are the cause, and the displayed temperature field distribution is the effect. If the theoretical tools are advanced enough, even if the former cannot be obtained directly, it can be inferred from the result. ?Liu Yongquan opened his mouth, but was so shocked by Chang Haonan''s confident words that he had nothing to say for a moment. After a while, he spoke again: Under different environments, the heat dissipation effects of various hole types will also be somewhat different. For this part, it is not very useful to just test it in a laboratory environment. Actual testing is still needed to prove the feasibility of our design. ?Of course Chang Haonan has been prepared for this kind of thing: Thats no problem. Ill contact Liming Factory in the afternoon and ask them to prepare to apply the new cooling technology on the second-stage prototype of the turbofan 9A. Whipfan 9A? Liu Yongquan was stunned: But the temperature in front of the turbine of turbofan 9 is a bit too low for our technology, and no effect can be measured..." Just modify the atomization level of the fuel injection structure and increase the temperature of the combustion chamber. Chang Haonan raised his head and said: Although the foundation of Turbofan 9 is average, the value of continuing to tap the potential will not be too great, but we are just changing the design without changing the process and materials, and the cost will not increase too much. The temperature in front of the turbine of the improved model is increased, which can at least improve some supersonic performance and reduce some additional fuel consumption. Seeing what he said, Liu Yongquan naturally had no objection. Mr. Chang, you are trying to squeeze out all the potential of Sibei... The words were somewhat complimentary. Its best to make the best use of everything. There are so many units in the Air Force waiting to be replaced. It will also be a big help to get the JH-7A out early..." (End of this chapter) Chapter 512 Finally able to independently produce tu Chapter 512 Finally, we can produce turbofans independently! Although it is just an improved model, aviation safety is extremely important, and the necessary testing procedures must not be sloppy. What''s more, the utilization rate of new technology in this so-called "Spey reform" is almost more than one-third - The first prototype No. 9A-01 modified some unreasonable designs of the high-pressure compressor blades and oil supply part, replaced it with a new domestic oil pump, bearings and gear set, and integrated the original bearing components. This reduces the number of components and widens the surge margin. At this time, although there are still many modifications, they are still minor repairs to the prototype engine. Not only the performance calibration has not changed, but the core design of the hot end component has also remained original, so the basic performance has not changed much, except that the weight has been reduced by about 75 kilograms. But on the second prototype No. 9A-02, which was produced at the end of 1997, the changes were relatively large. ?In order to test the effectiveness of the new active cooling technology, Chang Haonan specifically asked technicians from the 606 Institute to modify the engine performance calibration. By improving combustion efficiency and upgrading aviation fuel, the temperature in front of the turbine has been increased by about 50-60C, reaching a level close to that of the third-generation turbofan engine. The design of aero-engines affects the whole body. To this end, the compressor of the second prototype engine was also modified. The blade separation flow active control technology developed during the development of turbofan 10 was used on the 9-12-stage high-pressure compressor blades to reduce the total pressure of the compressor. The ratio increased to around 22-23. However, since the research and development of the manufacturing process will take time, the electrolytic machining, electron beam welding, precision forging, precision casting and other technologies used in the production and manufacturing of this engine are still at the previous level. Especially the processing of air film holes on the inner walls of turbines and combustion chambers. ?Compared to a dozen accurate round holes, the dustpan-shaped hole with a forward angle developed by Chang Haonan is quite unfriendly to the EDM technology developed by the 410 Factory. Not only does the processing of each hole require several more steps than the turbojet 14, but the subsequent grinding and quality inspection also require additional steps. The yield rate is still much lower. In short, although Chang Haonan could not wait to start testing this engine that uses a lot of turbofan 10 technology the day after posting the picture, even if the 410 factory specially set aside a production line and carried out production in three shifts 24 hours a day, it would still be It took more than two months to produce the 9A-02 machine. At the entrance of the engine assembly workshop of the 410 Factory, Chang Haonan, Zhong Shihong, and Zhang Zhenhua stood side by side, watching the engine that had finally completed the factory''s complete machine inspection being slowly installed on the specially designed engine bracket. ?Zhang Zhenhua took two steps forward, stretched out his hand and patted the tail nozzle of the engine twice in mid-air. Shengjing, mid-January morning. The temperature is about minus 20. The metal tail nozzle was bone-chilling, freezing Zhang Zhenhua, who was not mentally prepared. ?However, he still couldn''t hold it back and gently stroked the oil pipeline exposed on the outside of the engine casing. The intoxicated expression is slightly abnormal. It was not until the engine was fixed by the hoisting team and started to be packed in cargo boxes that he reluctantly returned. Sibei, after more than 20 years of domestic production, we have finally created an engine that is 100% domestically produced With the white mist rising in front of him, Zhang Zhenhua said with emotion. ? In order to speed up production, about a quarter of the components of the previous 9A-01 machine were directly assembled using parts imported from the UK. But this second prototype, due to huge improvements in all aspects, the original British parts could no longer adapt to its working condition. Hence, all components are newly produced domestically. During this process, Factory 410 also verified the application of several key new manufacturing technologies such as metal spraying, vacuum heat treatment, trajectory welding, vacuum brazing, and CNC pipe bending, laying the foundation for the next step of manufacturing the turbofan 10. Yeah, but its a pity its a little too late... Zhong Shihong took out a ballpoint pen and signed his name on the factory slip and responded: After the introduction of SPEI, there was a period of vacillation for more than ten years. Now that we have made domestic models, even if their performance is better than the original ones, the prospects are relatively limited The introduction of Sibei also hides a love-hate relationship between the 410 factory and the 430 factory. The former insisted on continuing to develop turbofan 6, while the latter believed that it should start with Spey. If I must say it, it was a lose-lose situation in the end. ?At this point, it is no longer clear who is who. Fortunately, for the generation of Zhong Shihong and Zhang Zhenhua, they dont have many related memories. The smell of gunpowder between the two units has gradually disappeared with the advancement of the Turbofan 10 project and the deepening of R&D collaboration. Contradictions fundamentally come from competition in resource allocation. ?Now that Chang Haonan has almost increased the scale of China''s aerospace industry by an order of magnitude, the difficulty of dividing the cake has naturally been reduced a lot. Even so, after noticing that the topic between the two people was gradually moving towards the past, he quickly changed the subject: Its useless to talk about the past. As he spoke, Chang Haonan also took the pen from Zhong Shihong and signed his name. The production of the Turbofan 9A prototype is nominally as a technical demonstrator for the Turbofan 10, so the signature of his chief designer is naturally indispensable. No matter what, there must be a demand for dozens or hundreds of improved JH-7s, and the turbofan 9A can still make a difference in this regard. Its just a pity that Spey Aircraft converted to combustion. Now the QC130 converted from turbojet 14 to combustion has entered the design finalization stage. The Navy should not accept another gas turbine with similar power..." ?After the factory procedures were signed, the staff quickly loaded the neatly packed engine packaging box onto a special Mercedes-Benz semi-trailer. ?This car may be the only 100% imported product in the entire Turbofan 10 project. The main reason is that everyone is really busy and has no time to build a special engine transport vehicle. The finished engine will be transported by this vehicle to Beiling Airport, and then transported by an IL-76 transport aircraft to 624 for necessary ground testing. Mr. Chang, what do you think the actual performance of this engine can achieve? ? Zhang Zhenhua, as the director of the production department, has not been involved much in the field of engine design, so he does not know the specific effects of these upgrades on the turbofan 9A. Dont have too high expectations... ?Chang Haonan shook his head, returned the pen in his hand to Zhong Shihong, and continued to explain: The design level of the Spey engine itself is not good. I spent a lot of time adjusting the data of the compressor and combustion chamber, but the matching degree is always average. After all, it is an improved model, and it is impossible to go to great lengths to redesign a core machine, so we can only make do with it. There was some dissatisfaction with the British in his words. ?Of course, the two people next to me wouldnt have any objections. After all, Mr. Changs ability is obvious to all, and he is indeed qualified to evaluate him in this way. In addition, because at the time of blade production, the multi-arc ion plating equipment in the factory was not yet in place, so the hot-end components had not yet used new coating technology, and the increase in temperature in front of the turbine was relatively limited. "Of course, on the other hand, the turbine front temperature of the Spey MK202 itself is already quite high. It is indeed true that the British can use such a high turbine front temperature to design such an engine with mediocre performance... tsk tsk tsk." ?At this time, it would be difficult for Zhang Zhenhua and Zhong Shihong to answer the phone. So how much can some typical paper performance be improved? If its more specific, well have to do bench testing before we know it. At this time, a Jetta King stopped in front of the three people. The one driving the car is naturally Zhu Yadan. ?Chang Haonan opened the right rear door, turned back to the two people and continued: However, according to the performance calibration I did, the thrust at sea level can be increased to about 10,000kg. The total weight of the engine, according to the national standard, should not be higher than 1,750kg. After finishing speaking, he got into the car and signaled that the convoy could set off. Only two people were left messy in the wind. This is still called dont have high expectations? Zhang Zhenhua looked at Zhong Shihong next to him with a somewhat stiff movement. You should know that the sea level afterburning thrust of the Sibei MK202 is 9300kg, the national standard dead weight is as high as 1842kg, and the thrust-to-weight ratio is only 5.05. The turbofan 9A directly increases the thrust-to-weight ratio of the engine by nearly 15%! As you know, Mr. Chang has always been very demanding on projects. ?Zhong Shihong held up the cotton hat on his head. ? He ??actually felt it was a bit outrageous, but in front of Zhang Zhenhua, he still maintained his demeanor and did not show any obvious surprise: In short, I am already looking forward to the performance of the Turbofan 10 (End of this chapter) Chapter 513 The intersection of two eras Chapter 513 The intersection of two eras Later that day, Chang Haonan flew to Fucheng with the IL-76 transport plane transporting the engine. ??This is not the first time Chang Haonan has come here. ? He ??was sitting in the passenger seat of the truck transporting the engine, looking at the 624 gates in front of him, and couldn''t help but recall the situation when he first came here more than a year ago. When he was testing the turbojet 14 before, it was here that he perfected the national military standard operating procedures for the assessment of the total pressure distortion of the aeroengine inlet. At the beginning, his idea was just to make the testing process of the specific model of turbojet 14 legal. However, due to many subsequent coincidences, that operating manual-like document eventually became the basis and model for a new national standard. The ensuing series of butterfly effects directly changed the development path of China''s entire aviation industry... It should be said that in the nearly two years until now, he has achieved far more results than he expected when he was just reborn. ?Of course, he has already done almost all the projects that are easier to achieve results in a short period of time. The rest are hard-core products like the turbofan 10. The sound and inertia of the truck braking brought Chang Haonan out of his thoughts. He got out of the car from the passenger seat, and several leaders of Institute 624 who had been waiting here came to greet him. Mr. Chang, we meet again. The leader was wearing a dark blue woolen tunic suit and a leather hat. Chang Haonan was a little unfamiliar with this kind of dress, but when he heard the other party''s greeting, it was obvious that he had met him before. But the last time he came to Institute 624, the theoretical director and secretary here was still Liu Zhenxiang. Among the leaders he came into contact with at that time, he should not be the one in front of him... ?However, this must not be shown, so Chang Haonan shook hands with the other party enthusiastically. Fortunately, the other party quickly introduced himself: Li Rongzai, who was transferred from Shengjing at the end of last year, took over the position of Academician Liu Zhenxiang. When I was working on the turbojet 14, I was responsible for the research and development of the fuel and oil delivery part. I met you several times during project seminars... In the original timeline, after the completion of the SB101 test bench, Liu Zhenxiang still served as the dean of Institute 624 for a long time. ?However, in this life, perhaps due to the influence of Chang Haonan, he has transferred his organizational relationship back to Beijing Hang University as a professor. ? And through hard work, I got the title of Chang Haonan''s "joint training mentor" from Du Yishan. ?Of course, its just a name. ?Now when Chang Haonan publishes papers, the corresponding author writes himself... In short, Academician Liu is obviously preparing to continue to shine in the education world, and the new Dean Li is one of the countless people affected by the butterfly effect. ?Although Chang Haonan himself is only in his early twenties, at this moment, he suddenly has a mysterious feeling that "the world is full of peaches and plums". As for the person following Li Rong, Chang Haonan was much more familiar with it. Jiang Fuhe, the chief designer of the 624 Institute, had some interactions with each other at the turbofan 10 design review meeting. ?After saying hello and briefly chatting, Li Rongzai personally directed the staff to prepare to unload the truck. Jiang Fuhe took out a bound paper material from nowhere and handed it to Chang Haonan. Mr. Chang, this is the test content we have initially determined, modified according to the latest version of the national military standard, please take a look. The latter set a pattern for aero-engine testing standards, but after all, it only completed the part related to compressor intake distortion, and the workload was less than 10% of the engine testing process. The improvement and revision of other parts were led by Liu Zhenxiang and completed as recently as 624. So even Chang Haonan himself is not very clear about the testing process after the version update. For a major modification like the 9A-02, although the content that needs to be tested is less than that of a new engine like the previous turbojet 14, it cannot be completed in a few days. Chang Haonan spent almost half an hour looking at the list of necessary test items. Now, I guess Ill be celebrating the New Year in Fucheng again Chang Haonan took out a ballpoint pen and signed his name at the end of the test project book, saying with some helplessness. Jiang Fuhe took the information in his hand and put it away. Hearing this emotion, he raised his head curiously: Mr. Chang spent the New Year in Fucheng before? ?Chang Haonan did spend a lot of time celebrating New Year in Fucheng in his last life, but they were always at the Ninth Courtyard. Of course, this kind of thing cannot be said. There are not many in Fucheng, but there are quite a few people celebrating the New Year outside because of work. Fortunately, the other party just asked casually and did not continue to dwell on this topic. ?While the two were chatting and processing necessary documents, the 9A-02 prototype was also unloaded from the flatbed trailer and slowly transported to the interior of the high-altitude platform test workshop via the track. ?Chang Haonan quickly followed. After walking a few steps, his sharp eyes spotted a much smaller engine being transported out of another track next to it. Are there any other test tasks here? Chang Haonan stared at the small engine, which was about a quarter of the size of the turbojet 9A, for a while, but did not recognize the specific model. At this time in 1998, there were only a few types of Chinese aircraft engines, and most of them were directly or indirectly involved by him. ??It was a bit surprising to see a truth that suddenly appeared that he had no impression of. Oh, this is an improved model produced by our local Rongfa factory, the turbojet 6D. Isnt this the engine of the J-6? Is it still being modified? Chang Haonan was shocked. ?The Turbojet 6 is a super old-timer that was established in 1966. It was normal for him not to recognize it for a while. But its 1998, and you can still see improved models of the engines from your grandfathers generation? Of course the J-6 has been discontinued a long time ago, but arent there still J-5s in use... ?Jiang Fuhe, who was half a step behind, explained: Originally, Hongdu began to strengthen 5D at the end of 1996, and now it has basically been finalized. "But because the progress of the improved JH-7A in Haojing is far ahead of expectations, and it will soon be 100% domestically produced, this model, along with the turbojet 6D engine that has been extended its life, has lost its positioning. Entering the technical reserve..." Strong 5D To be honest, since his rebirth, Chang Haonan has never thought of this model. After Jiang Fuhe said this, he remembered that the Qiang 5D, as the last mass-produced model of the Qiang 5, was originally put into production in 1998 and discontinued in 2012... ?Of course, on todays timeline, it should have no chance of entering mass production. ??It''s just pity Hongdu Group. It originally only had two main products, K8 and Qiang 5 (Chujiao 6 was discontinued at this time, but was resumed in 2015 in reality). Now one of them has been ruthlessly eliminated by the torrent of the times... Having said that, this model, which is improved on the basis of the J-6, is basically a specific solution to specific situations in a specific period. ?In the context of the 21st century, even Chang Haonan cannot do anything on this old machine... ?In the sunset in Fucheng, two engines go in and out, passing each other on the adjacent transportation track. Just like the two eras of Chinas aviation industry. (End of this chapter) Chapter 514 A helicopter thats too quiet? Chapter 514 A helicopter thats too quiet? ?While Chang Haonan was intensively conducting technical tests on the turbofan 9A, other units within the aviation industry system were naturally not idle either. Especially Bingcheng Aircraft Industry Group. Since the core power and transmission mechanisms of the helicopter have been improved before, the development of the Z-9 assault transport type was much smoother than initially expected. Liu Hongbo, who traveled between the two places to "supervise the war" in person, first determined the noise calculation method of flow field-sound field with Chang Haonan. He seemed to have an idea in this aspect and soon began to take charge of his own work. ?It took less than three months of work to renovate the semi-finished aircraft, which was about 60% completed, and became the first prototype of the Zhi-9WY (armed-transport) aircraft. The only problem is the test flight. Originally, Chinas helicopter test flight process was relatively confusing. Due to the huge differences in engineering principles and research and development methods between fixed-wing and helicopters, generally speaking, the proportion of tasks undertaken by test flight bases during helicopter test flights is relatively low. Most of the test flight work will be done locally at the manufacturer. Even the specific subjects of each OEM are not exactly the same. Fortunately, the flying environment of helicopters is relatively simple after all, so it has not been a big problem over the years. However, the situation of Zhi 9WY is rather special. It came off the production line in mid-January. At that time, the temperature in Ice City was almost minus 30. This temperature is a test for the mechanical parameters of the engine, especially the turboshaft engine, the stability of fuel and oil delivery, and even the pilot himself The cabin of a helicopter is only as airtight as a car, not as good as a fixed wing. ?Furthermore, the operational feedback presented by the helicopter at low temperatures is also very different from normal conditions. Especially during takeoff and landing where the risk factor is the highest. If the pilot''s proficiency is low, it will be difficult to save the situation once some emergencies occur. In general, helicopters only choose some extreme climates according to actual needs in the middle and later stages of test flights to complete tests in special environments such as alpine/plateau/salt spray. ??Although the trend of restructuring the national military standards set off by Chang Haonan has had little impact on the helicopter industry, even if there are no relevant standards, the first flight in the extremely cold climate of minus 30 degrees Celsius is obviously dancing on the coffin board of aviation safety regulations. ??However, Bingcheng Industrial Group is obviously not willing to postpone the first flight to April or May. ?That is equivalent to wasting three or four months. As Chang Haonan becomes more and more deeply involved in the research and development of aviation industry projects, the industry''s understanding of "work efficiency" has also undergone earth-shaking changes. In the past, the development cycle for a major revision model like Zhi 9WY was basically calculated in units of 10 years. Due to the limitations of objective conditions, it is normal to wait for several months. But now, this can only be regarded as minor repairs based on the existing mature design. Everyone subconsciously feels that it should have been completed in two or three years. ?In this case, delaying for several months would be a heinous crime. In the end, Bingcheng Industrial Group worked hard and chartered an An-124 from the Volga-Dnepr Company, including the prototype with the main rotor removed, all related auxiliary equipment that needed to be tested, and the personnel involved in the test flight mission. Pulled in Ho Kyung. As a result, the entire test flight process of this aircraft born in Ice City will be completed in a foreign land 2,000 kilometers away. An extremely large An-124 landed in Haojing, and the noise was naturally not small. It can be seen from almost the whole city. Not to mention internal units such as the Flight Test Institute or the Haofei Group. ?Most people, even those who are involved in aviation, have never seen such a big thing with a take-off weight of 400 tons. ?Especially compared with several Y-5, Boeing 737, Y-7, MA-60 and JH-7A prototypes parked near the runway, this is especially obvious. Talk about and laugh at other small planes.jpg ?Hence, during the process of unloading the prototype from the warehouse, it was already watched intensively by curious colleagues and wall-crawlers. ??Guo Jingshan and Liu Hongbo dont care. When they chose to pack an An-124, they considered that this way of appearance would be very eye-catching. It just requires that onlookers be excluded from the airport area to avoid causing any security problems. After all, as the basic type of Zhi 9WY for export, there is not much need for confidentiality. The prototype is a dolphin sold almost all over the world by the French. You can get up close and personal with it for hundreds or thousands of francs in Europe. Although some key improvements such as the transmission system, engine, and rotor are independent intellectual property rights, you can''t just take a look at them. Even if you are given a measuring tape to measure, you cannot simply copy them away. ? Among other things, the low-noise propeller designed by Liu Hongbo was calculated based on the sound field coupling with the front fuselage and the shape of the short wing. Copying a single blade may even have the opposite effect... Besides, these days, wall-crawlers fall into a gray category, and even if they catch the current situation, its not easy to deal with them. ?After completing the unloading, Guo Jingshan directed half of the people accompanying him to quickly install the rotors on the aircraft in preparation for a test flight, while the other half began to carry various daily necessities into the An-124 cabin. Such a big plane has come and gone, so we cant go back empty. The goods shipped back from China are regarded as flight time subsidies for the crew. The first flight took place the next morning. Mainly, it only took half an afternoon to assemble and inspect the helicopter, but it took nearly ten hours to refill and secure the An-124 pallet. By the time the latter refilled the fuel tank and took off, it was already early the next morning... This plane is really big... ??Although Guo Jingshan is not engaged in fixed-wing, he still knows the size of the aircraft. ? He ??has seen a Boeing 747 with a takeoff weight of about 370 tons before, but the shock it brought was far less obvious than this An-124. What a pity, we cant make new ones now Yi Yuanhe, chief engineer of Institute 603, also stood nearby and said as he watched An 124 gradually climb up and disappear into the horizon. There was a little regret in his tone. ?Liu Hongbo has been involved in the research and development of MA60 for a long time, and he and Yi Yuanhe have met frequently. ?Of course, the former could not even be counted as a formal member of the project team, but could only be counted as the person in charge of Party B of the outsourcing team. ? Its just that now Liu Hongbo, as the representative of the Torch Group or Chang Haonan, has some differences in status. So Yi Yuanhe came specially to meet with him. ??Also find a reasonable reason to take a close look at the An-124. ?After the airport returned to its former cleanliness, members of the Ice City team acted quickly to make various technical preparations before the first flight. ?Following Guo Jingshans command over the intercom, Zhi 9WYs main rotor finally started to rotate slowly. Hand test, they have already done it in Ice City. So this time, after confirming that there are no problems with the engine and transmission system, we took off directly! Meanwhile, outside the airport fence. ??Rosie Colombo was wearing a military cotton hat and a coat printed with the aviation industry logo. He put his hands in his sleeves and looked at the helicopter rising from the ground not far away. ??As the manager of the International Business Cooperation Department of Finmeccanica Group, he basically flies to Haojing every month. On the one hand, it is to confirm the progress of the MA-60 project, and on the other hand, it is also to see if there are any other opportunities. ?Colombo was able to jump several levels from the subsidiary Agusta to become the second-level department manager of the head office. Firstly, the cooperation with MA60 was relatively successful. Secondly, he acted as a middleman in the cooperation between China and Europe at the beginning of last year. Of course, what played a decisive role was that in the process of the latter incident, by chance, he found a wife who held a key position in the European Aviation Safety Agency (JAA)... If there is someone in the court who is easy to do things, his status will naturally rise with the tide. ?However, his qualifications and connections are very shallow after all, and he urgently needs some close friends to gain a foothold among the company''s senior management. ?Standing next to Colombo was his deputy Daniel Lezzo, who was visiting China for the first time. ?Just like Colombo back then, he was wearing a suit jacket and shivering in the wind. Although Haojing is not as good as the Ice City, it is still unbearable for Italians on the Mediterranean coast. In order to divert attention, he had no choice but to ask the leader next to him: This helicopter is like the French Dolphin? Judging from the layout of the power cabin and the tail rotor, it should be an improved version of the Dolphin. Colombo was once in charge of helicopters, so he naturally had much better judgment than the deputy next to him. Whats more, Eurocopter is still the main competitor of his old club: I was thinking, maybe they need a better helicopter? An armed helicopter? ?Lezzo was promoted from the shipbuilding business department. Only short wings can be seen on both sides of the aircraft. I havent thought about this yet AgustaWestlands main products are the 3-ton A109 and the 15-ton EH101, as well as the A129 armed helicopter. But what Colombo needs is not as simple as simply selling a few planes. While the two of them were talking, the helicopter had been hovering steadily in mid-air for a while, and then began to fly levelly. The helicopters first flight is destined not to be too high. At a height of tens of meters, it is enough to fly around the airport. Hence, they quickly passed over the heads of Colombo and the others. Manager, the plane just flew over. ?Lezzo patted the leader who was still bowing his head in thought, and pointed to the sky. "oh" Colombo was still immersed in thinking, but nodded subconsciously. But it soon became apparent that something was not quite right. "ah?" He looked up at the sky. ?As expected, the small helicopter could only see a shadow. Did it just fly over our heads? He turned to look at Leizzo beside him. Yes, it should be flying around the field, right? The latter just thought that the other party was in a daze and answered casually. Colombo''s eyes suddenly opened wide. As a 4-ton helicopter, the improved model of Dolphin just now seems to be too quiet... (End of this chapter) Chapter 515 Your partner for a new generation of helicopters Chapter 515: Partners for the new generation of helicopters As a former AgustaWestland technician, Colombo still has an idea of ??the effect when a helicopter flies overhead. Helicopters have two noise sources with different characteristics but related to each other. ??Although the high-frequency noise emitted by the turboshaft engine is sharp and harsh, it can be effectively suppressed after the engine compartment undergoes necessary noise reduction and vibration isolation settings. As the source of lift, the propeller blades must be exposed, and their wingtips simultaneously perform high-speed tangential motion and high-frequency vertical vibration in the air, thus producing a "chugging" mid- to low-frequency pulse sound. This is a problem that has not been solved yet. It is also the main factor restricting the expansion of the high-end commercial helicopter market Low-frequency noise attenuates more slowly and is more likely to cause strong discomfort to human ears, which is quite unfriendly to passengers and even surrounding ground personnel. Hence, this is also the direction that the helicopter industry mainly hopes to improve in recent years. ? AgustaWestlands current signature product, the A109 helicopter, is a 3-ton helicopter with very little movement. But compared with the helicopter that just flew over, whose prototype is a dolphin, the difference is still quite obvious. Just a small voice or something secondary. More importantly, its sound is relatively soft. ?Especially the mid- to low-frequency pulse sounds that can penetrate the eardrum are much weaker. So much so that when he had been immersed in thinking just now, he didn''t even realize that a helicopter was flying directly overhead. He knows the low-noise design principle of MA60, which relies on the phase difference of the sound of the two propellers to cancel it out. But this noise reduction effect is only useful inside the cabin, and the effect outside the cabin is relatively poor. Besides, the helicopter only has one main rotor, so there is no condition to use a similar principle. So, it is likely that some more unique noise reduction technology is used! ?Of course, Colombo will not regard his own ears as a strict basis for judgment. The sound sounds small can only be regarded as an intuitive feeling. The volume perceived by the ear is related to the distance from the sound source, background noise and even environmental conditions. The specific situation needs to be understood more specifically before we can know it clearly. ?Thinking of this, he was a little restless. Haofei Group has few restrictions on the activities of its partners, but that doesnt mean they can just run around in the infield during the test flight. So after thinking for a moment, he immediately turned around, motioned for Laizo to follow him, and then walked in the direction of Institute 603. ?In Colombos impression, this research institute located in Haojing is mainly responsible for the research and development of large and medium-sized fixed-wing aircraft. He had never seen a helicopter here before. As the first Western aviation company to carry out in-depth project-level cooperation with China, Finmeccanica Group has been listed as an "international strategic partner" by the Aviation Industry Corporation of China. For an Italian in Colombo, it is indeed not easy to understand the specific meanings contained in these adjectives. But one of the obvious benefits is that he can go directly to the director of the 603 Research Institute or the chairman of the Haofei Group or other middle- and high-level cadres without making an appointment. Not long after, two Italians came to the office of Zhou Yonghang, director of the 603 Institute. Mr. Colombo? Zhou Yonghang saw the person coming and quickly stood up to greet him. Mr. Zhou, Im sorry to bother you. Colombo took the initiative to shake hands with Zhou Yonghang and behaved quite politely. ??Both of them have strong English accents, but they can understand each other and can communicate directly. ?Nowadays, his status, and even that of his wife Anne Colombo, are highly tied to the aviation industrys cooperation with China, so both parties are definitely deeply bound by interests. ?After a brief exchange of pleasantries, Colombo, who was holding something back, went directly to the topic: I just saw a helicopter being tested at the flight test base. Is that also a product of your company? ?Faced with this problem, Zhou Yonghang was stunned for a moment. ?Of course he knew about Bingcheng coming over to test-fly a new helicopter. But in the aviation industry system, how to define the description "your company" is indeed a problem. After organizing his words, he started to explain: "Our Haojing Aircraft Industry Group currently does not have a helicopter business. That aircraft comes from Bingcheng Aircraft Industry Group, but we are all branches of China Aviation Industry Corporation." Fortunately, Finmeccanica Group''s situation is similar. So although the English on both sides was relatively jerky, Colombo still understood the meaning. It looks like it should be an improved version of a Dolphin? ??Although Colombo has seen it before, he still needs to find some topic transition. Otherwise it would be too blunt. Thats right. ?Zhou Yonghang nodded. Our country introduced the Dolphin helicopter from France in the late 1980s, as well as the supporting Arriel engine technical data and an export license. ?This is not a secret. In fact, this is written in the public information of Ice City Aircraft. ?Its just that few people paid attention to this replica model of French helicopters in the past. Do you still have an export license? Colombo recalled the short wings on both sides of the plane just now, and the sound when it passed over his head. ?He suddenly felt that the French would regret this sooner or later. Yes, we spent a lot of money back then. ?Zhou Yonghang lit a cigarette and replied with a smile. The fuel consumption of the Ahaye engine is quite unsatisfactory Out of professional habit, Colombo almost subconsciously began to diss his competitors. There is no other way. Ten years ago, our helicopter industry was almost in ruins, and the only ones willing to transfer technology to us were the French. Of course Zhou Yonghang could not refute this matter, and what Colombo said was true. But we are constantly improving this model, and I believe you have seen it. Colombo finally waited for the opportunity and immediately asked: In this case, could Mr. Zhou help me contact the technician responsible for the development of that helicopter? ?Such a direct request surprised Zhou Yonghang. Logically speaking, since the middle of last year, the two parties based on the MA-60 project have been upgraded from Haofei Group and AgustaWestland to parent companies of both parties. Colombo can naturally contact Bingcheng. ?However, the Aviation Industry Corporation of China is, after all, a state-owned enterprise under the Commission of Science, Technology and Industry for National Defense. In addition to business logic, it often has to deal with first-hand discipline. According to our regulations, comrades who are responsible for the research and development of specific models cannot contact foreign personnel in private. But dont worry, Mr. Colombo, it will definitely be okay to meet, but you have to submit an application to our head office first, so it wont be considered a private contact. Colombo nodded in understanding. He was not in a hurry at this moment. So after asking some things to note about application submission, he took Lezzo and left the office. Boss, are you planning to deepen cooperation with them on the helicopter project? ?After getting in the car, the latter, who was sitting in the driver''s seat, asked while starting the car. "Right now...it''s just a preliminary contact, and I can''t say what I''m going to do in detail yet." Colombo shook his head and did not say too harshly. Of course, he actually had this idea. Finmeccanica Groups activities are diverse. Among them, the one that Colombo is most familiar with and loves the most is naturally the helicopter. ?Furthermore, he is from the Agusta Group after all, and his actual influence on the old unit is always greater. ??More importantly, the AgustaWestland Group is currently planning to develop a generation-changing 6-ton medium-sized helicopter. ?Required to exceed existing models on the market in terms of safety, comfort and speed. At present, we are discussing cooperation with Bell and Westland. But it didnt go well. ?Both sides felt that the performance indicators proposed by Agusta were too high and could not control project risks. ?In this case, if a third reliable partner can be found, it will be a good thing for the company and for Colombo personally. (End of this chapter) Chapter 516 Become an international supplier! Chapter 516 Become an international supplier! ?On the other side, Zhou Yonghang, who had seen off the two people, was not idle either, but immediately made an internal call to his superiors. ?Of course, not everyone can directly contact Ding Gaoheng himself like Chang Haonan. So this call can only be made to the Aviation Industry Corporation level. He quickly reported the relevant situation to the leader in charge of external cooperation. In fact, Zhou Yonghang didnt know much about helicopters, nor did he know much about the model being tested next door. After all, the flight test business is the responsibility of the Flight Test Institute. Institute 603 is currently busy with the final test flight certification tasks of the MA-60 and the improvement work of the JH-7A. ??But this wave in Colombo is a straight shot that anyone with a discerning eye can see. ?Given the previous cooperation between the two parties in the development of MA-60, the Italians may have similar ideas this time. Of course, the other party has a deep foundation in the helicopter field and is already a mature brand with a good reputation, so the specific cooperation methods are definitely different from MA-60. At least the Italian side will not just provide money and be responsible for some insignificant parts. It is estimated that China has quietly developed some key technology in the helicopter field, and this technology happens to be very important to AgustaWestland. The phone caller gave instructions that it was possible to make contact, as expected. ?However, specifically whether cooperation is possible and in what manner. That is not something that can be determined at the level of the Aviation Industry Corporation of China. Even before Colombo returned to his residence and started to submit the application, this matter had been handed over to Ding Gaoheng''s desk by Huai Guomo. Since being responsible for the introduction of the IL-76 last year, the former has almost become the deputy minister responsible for foreign cooperation full-time. Ding Gaoheng put on his glasses from the table next to him and opened the report. The ink on the paper has not yet completely dried. It can be seen that it was sent here as soon as it was printed. Finmeccanica Group...helicopter business cooperation..." The report submitted to a leader at his level naturally emphasizes conciseness and conciseness, and it is impossible to do the kind of thing where the key content is sandwiched between two inconspicuous tables. ?So it didnt take Ding Gaoheng long to understand the key points in the report. He has been the director of the Science and Technology Commission for more than ten years. Naturally, he quickly prepared a plan for this kind of thing: Cooperation in the aviation field can indeed be deepened. In addition, how to discuss this matter in detail can be left to Bingcheng Aircraft Industry Group to judge, and it can be reported before the final decision. Putting the report back on the table, Ding Gaoheng raised his head and looked at Huai Guomo, who was sitting on the sofa next to him and drinking water. The latter did not reply immediately. He was obviously very familiar with Ding Gaoheng''s habits and was waiting for his further explanation. However, there are a few requirements to be aware of. ?Haiguo Mo put down his water glass, opened the notebook next to him and started recording. The first is the issue of intellectual property rights. Our countrys technical reserves in the field of helicopters are insufficient. The overall project can be led by the Italian side, but the property rights ratio must reach 50:50, and a domestic production line that meets my countrys corresponding standards must be built. ?This matter is not difficult. Except for some details, European standards can be consistent with the standards of most other regions around the world without any adjustments. Whats more, the two parties adopted a similar approach in their previous cooperation on the MA-60 project. It''s just that China took the lead that time, with a property rights ratio of 50:50. After a brief pause, Ding Gaoheng continued: The second is to pay attention to the positioning of cooperation projects and avoid conflicts with existing domestic projects. They should be staggered by at least half a level to avoid wasting R&D resources. Third, we must keep up with supporting projects, especially the power system. I took a look and found that AgustaWestlands helicopters generally use power from General Electric or Pratt & Whitney. "Of course, we are cooperating with a civilian model, and we also have relationships with Italy. There shouldn''t be any big problems in the short term, but we still have to plan ahead and at least ensure that there are available alternative suppliers, preferably domestic ones. The corresponding model, even if the performance is worse than others, is still a retreat. " Ding Gaoheng leisurely talked about seven or eight things to note. ?Although there is a lot of content, it is all basic content and there are no strict requirements. Basically...thats it. As for the investment ratio and the details of the project progress, some concessions can be made appropriately. According to my observation, the work habits of most Italians are relatively unorganized, and it may be difficult to align our efficiency. This last half-joking remark made the two of them smile. Director Na Ding, I will convey your opinions to Bingcheng Industrial Group and let them make a specific work plan! Originally, this matter should have ended like this. But about half an hour later, Huai Guomo left and returned again. This is not a common situation. Director Ding, there is feedback from Bingcheng that a considerable part of the technology on the helicopter being tested in Haojing comes from the Torch Group. If we cooperate, we need to confirm their opinions. Torch Ding Gaoheng was immediately stunned: Thats notXiao Changs house ?He originally thought this was a relatively isolated incident, but it ended up going around and around, and finally he got involved with Chang Haonan again. Thats right. Huai Guomo said and put the situation statement in his hand on his desk: Furthermore, this situation is quite special. Torch Group not only provided the software tools used in the research and development process, but also participated in the project development as a supplier that directly provides rotor system solutions. In fact, this matter can be directly handled by Bingcheng and the Torch Group. But Huai Guomo still made a special trip. After all, both Chang Haonan and the cooperation with Italy are now major matters on the agenda within the Commission of Science, Technology and Industry for National Defense. Although Italy''s national strength has generally declined since the end of the Cold War, it is still a developed European country. Moreover, as one of the six founding member states of Europe, it can also serve as a window for exchanges between China and the EU. This point has been proven through the cooperation between the two parties in the Boeing-McDonnell Douglas merger case. Furthermore, it was certified by the Commission of Science, Technology and Industry for National Defense. In fact, this merger and acquisition case has also had a great impact on China, no less than the turmoil it caused in the global aviation industry. Its just that many events are hidden under the water and are not known to the public. Since the MD90 joint production project is in the critical stage of moving from large component assembly to component assembly, anyone can see that the sudden acquisition of MD90 at this time will have a great impact on China''s aviation industry development plan. . However, after the incident, several relevant departments almost sat back and watched the situation unfold, failing to come up with any effective and proactive response measures. The first to respond was the Commission of Science, Technology and Industry for National Defense. ??Moreover, not only did they react, but they also came up with a completely different solution in a very short period of time. ? At the time, this plan to take the initiative, use market advantages to cooperate with the EU, and force the FAA to comply was considered bold and even crazy. Naturally, it has also received a lot of criticism and opposition. It is said that it was passed with a one-vote advantage and narrowly missed. In the following months, public or semi-public questioning of this decision never stopped. ?Most of his views are nothing new, except that Boeing and the FAA should not be offended at this time, otherwise it may have an adverse impact on the subsequent MD90 project. It can be said that during that time, Ding Gaoheng was under great pressure to push forward this matter. However, it turns out that China and the EU almost lost the battle in the end. In other words, with the exception of North America, all countries in the world with aviation manufacturing industries have lost money. ?Boeing''s two conditions of giving up exclusive supply terms and opening up patent rights are for the whole world. Even the fact that the aviation industry was able to reach a favorable agreement with the Tupolev Company, which was called cooperation but actually sold out, was indirectly related to this matter. ?After this incident, the status of the entire Science and Technology Commission system jumped up. ?Including Chang Haonans special status within the Commission of Science, Technology and Industry for National Defense, to a large extent also comes from his outstanding performance in this incident ??If this were not the case, even with Du Yishan''s relationship, Ding Gaoheng would not be able to take care of Chang Haonan to the extent that he is now. After thinking for a moment, Ding Gaoheng replied: In terms of organizational relations, Torch Group is, after all, a subsidiary of the Science and Technology Committee. I will call Director Song and Xiao Chang himself later. But dont worry about this, there will definitely be no problem. Its just a matter of going through more procedures and arranging Torch Group as an international supplier. Huai Guomo had already guessed that this would be the result: Then, according to our countrys requirements, international suppliers need qualifications and licenses This should be the responsibility of the Ministry of Foreign Trade and Economic Cooperation, right? ??With the improvement of his departments status, Ding Gaoheng becomes more aggressive when in contact with units of the same level: Thats easy to say, Director Song and I will send a letter to them and ask them to speed up the approval..." In short, Chang Haonan was still struggling with the problem of how to "go global" for the Torch Group, but it was successfully solved without him knowing it at all... (End of this chapter) Chapter 517 Turboprop 7 and Turboshaft 7 Chapter 517 Turboprop 7 and Turboshaft 7 ?Chang Haonan has not followed the entire testing process of Turbofan 9A. He is the chief designer of Turbofan 10 after all, so he only needs to focus on some key testing links involving new technologies. As for the remaining parts, comrades from Haojing will naturally be responsible for handling it. In any case, the Turbofan 9 is, after all, the model of the Haofa Group on paper. To Chang Haonan''s surprise, the other party directly sent a whole team over. ?Of course, this is an internal matter within someone else''s company. He only needs to be responsible for handing over the work. Hello, comrade. Chang Haonan shook hands with the team leader opposite him in a routine manner, then waved his hand and motioned to the staff behind him to put the relevant documents on the table: This is the work plan list, these three are performance comparison reports before and after improvements, these are the work schedules that have been completed so far, these are some minor problems discovered so far, and these..." After a month''s work, the Turbofan 9 test project has actually been almost half completed, so the files on the table have almost piled up into a mountain. Haofa Group should have set up responsible persons for different subsystems. In short, several people on the other side signed together, and it took almost an hour to get everything done. After the handover ceremony. Chang Haonans flight was scheduled for the next day, and he originally planned to have a meal and then go back to rest. But just when he was about to leave, the team leader from Haofa came over specifically. Mr. Chang, I am the deputy general manager of Haojing Engine Group, Ren Bingda. ?The other party took out a business card as he spoke. Ren Bingda ?Chang Haonan was originally prepared to just deal with it with a few words and then pass. But the name felt a little familiar to him. ?So Chang Haonan slowed down and asked the other party to catch up, and took the business card and looked at it twice. After a moment of recollection, he quickly remembered that he seemed to have seen this name in a report a few months ago. "Oh...you are in charge of the business of the Siro Group..." Seeing that Chang Haonan still remembered him, Ren Bingda was overjoyed and nodded quickly: Yes, its me. Last year, when I was deciding how to cooperate with Rolls-Royce Group, I submitted a report to you through Minister Zhang Zhenhua. However, this is the first time I have the honor to communicate with you face to face. When the other party described it like this, Chang Haonan remembered the complete ins and outs. Oh, yes, that is indeed the case. I remember that in the end you reached an agreement with Rolls-Royce and introduced an M250 light engine, right? Yes, this project has been negotiated now, thanks to your guidance and help. I am looking for you this time to report on this matter... ?Ren Bingda came to Chang Haonan specifically, and the core purpose was of course to get closer to him. The latter is now a popular figure within the Commission of Science, Technology and Industry for National Defense, and judging from organizational relationships, he is probably also highly regarded by the Science and Technology Commission. ? Even now it may be difficult to truly become a confidant, but even if you just let the other person remember your name, it may be useful at some point in the future. ?However, building relationships also tests ones skills. ??If you can''t find any topic that interests both parties as a reason, it can only be regarded as saying hello at most. ?And if you insist on finding something to say, it will easily have the opposite effect. Because of this, Ren Bingda specifically brought the topic to the cooperation with Rolls-Royce. Also specially used the name of reporting. Although there is no organizational affiliation between him and Chang Haonan. As expected, the latter became interested in this: Its settledthat means we are already preparing to digest and absorb related technologies? ?This is almost the question that Ren Bingda wants to hear most.?????The point of flattering others is nothing more than "to do what they like". ?There is no unified standard for this "good", but it must be analyzed based on specific objects. ??Although it was the first time for Ren Bingda to meet Chang Haonan in person, he had already analyzed that the other person liked an efficient way of working. So he quickly replied: We have made some concessions in terms of cost and asked Rolls-Royce to speed up the progress. We are currently debugging the production line and preparing to produce the first batch of engines through assembly with supplied materials. It is expected that this batch of products will be rolled off the production line in March to April, and the localization rate will be increased to 100 within two years "According to regulations, this kind of domestically produced engine must have its own name. After our communication, we reused the two names that had been planned before but had only reached the drawing stage, Turboprop 7 and Turboshaft 7. ?The content of Ren Bingdas report indeed made Chang Haonan quite satisfied. In terms of technical difficulty alone, the M250 is not an aircraft engine model with high manufacturing thresholds. Otherwise, we would not have production lines in more than a dozen countries. Even for China Aviation Industry, which is still in the development stage, if it really concentrates its efforts, it will not be difficult to produce such a lightweight product. Its just that his energy is limited and he can only focus on the big and let go of the small on specific projects. ??The cost-efficiency ratio of going to war for such a model is really too low. ?This is why the M250 has no rivals in the same level. Everyone feels that it would be a waste to develop it from scratch. The British are selling production lines everywhere again. In the end, the same model with different names was produced all over the world. In short, achieving nationwide production in two years is by no means a satellite launch even for the Haofa Group, which has poor technical strength. Are there any confirmed users now? Chang Haonan naturally found the basis for this model, which is Guihangs long-endurance UAV that imitates the Predator, and the new junior trainer aircraft that will replace the Chujiao 6 in the future. ?However, it would be great if Haofa Group could find a way out on its own. We have been talking about this aspect, but now only the Hongdu Group has been confirmed, and they will use this model on the improved Agricultural 5 aircraft. Speaking of this, Ren Bingda looked a little worried. In fact, although only one confirmed user has been discussed so far, after his research during this period, he found that many trainer aircraft and training helicopters used by civil aviation schools use this model of power, so there is really no need for it in the market. Worry too much. ??The reason why he said this was just because he knew that this topic had come to an end, and before switching to new conversation content, he needed to leave an introduction for the next contact. This is the same as pursuing a date with a girl. Leave half of the topic, and it will be easy to use it as an excuse to ask out a second time naturally. And it will never be cold. ?Of course Chang Haonan can''t just take over everything and say clearly that I will solve the guarantee problem for you. ??Just nodded and replied in an encouraging tone: As long as there are initiating users, it is a good thing, which means there is no problem with the power-first approach. The potential of the domestic aviation industry has not yet been fully unleashed, and there will definitely be no shortage of market for this kind of light power in the future! (End of this chapter) Chapter 518 One-step main battle tank chassis Chapter 518 Main battle tank chassis in one step The introduction of absorption turboprops 7 and turboshafts 7 is, after all, just a small project with little involvement. The two of them had already finished talking about everything they could before they even reached the door of the building. Ren Bingda also knew that building relationships should not be done too hastily. After a few brief remarks, he was ready to stop there. ?Chang Haonan walked a few steps alone and stood at the intersection, hesitating whether to go back to his residence or to the canteen. At this time, I happened to meet Jiang Fuhe who had also just come out of the building. Mr. Chang has finished his shift and is ready to return to the capital? During the period of testing conducted by 624, the relationship between the two was quite familiar. ?After suffering some blows at the Turbofan 10 design review meeting last year, Jiang Fuhe followed the advice and embarked on the research of vertical take-off and landing engines. Of course, it is still at a very preliminary stage, mainly researching the technology related to large-angle deflection of the nozzle, and demonstrating the feasibility of the two routes of lift fan and lift engine. But fortunately, in a short period of time, you dont have to worry about your research direction being cut off. Chang Haonan had a hard time making a choice, so he simply followed Jiang Fuhe in the direction of the canteen: We can put aside the matters in Beijing for a while and go to Shengjing first. Now that the necessary test data has been obtained, we need to finalize the compressor design of the turbofan 10 and enter the test process as soon as possible. Since the 624 Institute is the only aero-engine ground testing base in China, the entire research process of all types of aero-engines needs to be dealt with here. Hence, this type of information on R&D progress and timetables also needs to be exchanged. Now it is nothing more than conveying it through Chang Haonan himself, rather than the administrative liaison officers of both parties. ?However, after Jiang Fuhe heard this, he was so shocked that he even stopped moving: Is this...are we ready to move into the testing process? He has worked in the 624 Institute for half his life, and has been involved in the research and development of high-altitude platforms with Liu Zhenxiang for the past ten years. He believes that he knows the entire research and development process of aero-engines. The tests that require the chief designer''s personal involvement, except for some special circumstances, will not be the quality and performance tests of small parts - A lot of this work is even done by second-tier suppliers. So what Chang Haonan said is, at least, it is a component test. That is, after each subsystem is designed and manufactured, its own availability needs to be determined before being integrated into the entire aircraft engine. But the design review of the Turbofan 10 has only been completed for less than half a year, so why are we starting to discuss the testing process? For an ordinary engine project, shouldnt the design plan be still being finalized at this time? Am I behind the times? Jiang Fuhe fell into self-doubt for a while. Whats the situation with Turbofan 10? Its quite special. Chang Haonan looked at Jiang Fuhe who looked like he had seen a ghost, smiled and comforted: You also know that the pre-research of this model has actually been started for some years, and it certainly cannot be compared with those truly new projects. "Among other things, before I officially took over the Turbofan 10 project, I was already studying some key technologies of the compressor and the theoretical methods of the overall design, so I knew that all subsystems were generally synchronous and parallel. I am personally responsible for development and compressor, so the efficiency will naturally be higher. Jiang Fuhe didn''t know how to continue this completely Versailles speech. He originally wanted to ask about the specific arrangements for component-level testing. Because normally, this process needs to be repeated many times compared to the whole machine test. For the chief engineer who is responsible for the research and development of the overall project, how to determine the timetable to achieve the most efficient use of time and resources is a challenging issue. But the words came to my lips several times, but in the end I still didnt ask. Mainly Jiang Fuhe is a little worried. In case Chang Haonan expresses that he is confident that the components have been tested once... ?Then it would be completely impossible to talk about it that day. So I had to respond with silence. ?Chang Haonan looked at the other party''s reaction and felt that what he just said didn''t seem to have much comforting effect. But he couldn''t think of any better way, so he had to change the topic: By the way, Mr. Jiang, I heard from Academician Liu before that the institute has started to build a second high-altitude platform for shaft power output engines. How is the progress? Some time ago, several comrades from Jianning Engine Group complained to me that the new turboshaft 8 they developed could only undergo non-standard bench testing at the factory, and then it had to be installed directly. The putting into use of the SB101 high-altitude platform can be regarded as an end to China''s inability to conduct fully autonomous aviation tests in the past few decades. However, a high-altitude platform is definitely not enough for China, which aims to become a powerful aviation power. On the one hand, each type of engine, even if all tests are completed, requires thousands of working hours and about half a year of bench testing. As long as there are a few more concurrent models, you have to wait in line. On the other hand, the SB101 test bench can only be used to test turbojet and turbofan engines. Engines such as turboprop, turboshaft or piston require completely different test benches because they output shaft power and have different requirements for air intake indicators. The engine test bench is unique to 624 in China. ?Hence, when talking about this topic, Jiang Fuhes awkward expression just now softened a lot: With the previous experience of Platform 1, the progress of Platform 2 is much faster. Currently, there is only one hydraulic dynamometer left that is not in place yet. ?Hydraulic dynamometer is the core structure for measuring shaft work. It uses a hydraulic transmission system to simulate the load and calculates the power output by measuring the flow and pressure changes of the liquid. This thing is not said to be complicated, but the aerospace engine has high output power and fast rotation speed, and it also needs to rotate at high speed in a water environment for a long time, which tests the accuracy, lifespan and sealing performance of some parts. "However, we are already in contact with several suppliers at home and abroad for bidding, and we should be able to put it into trial operation within the year." Chang Haonan was able to think of turning the topic to the new test bed because he had just chatted with Ren Bingda about the M250 The engine thing. Even if it is a model with imported technology, the tests that need to be done still have to be done. Haofa Group has never developed turbine shafts and turboprops in the past, and does not have the conditions for in-factory testing. ?Hence, when Jiang Fuhe said this, he was relieved: Thats good. Turboshafts and turboprops may not be as important as turbofans in the field of national defense, but they can still play an important role in the national economy, so we should not be too biased. Chang Haonan didnt pay much attention to the supplier issue just mentioned. After all, he is not the chief engineer of the test bench and has no authority to interfere with such details. On the other hand, he also believes that as long as he can ensure that the key core technologies are in his own hands, in order to improve the overall efficiency of the project, there is no problem in choosing imported shelf products as suppliers. The United States superior technological capabilities over the past half century have largely benefited from its ability to integrate the R&D and industrial chains of Europe, Japan, and South Korea without having to do everything personally. Comparatively, in the Soviet Unions economic cooperation system, only East Germany and half of Czechoslovakia could barely provide help, which was really at a disadvantage. ??Relative to the United States, China''s current comprehensive national strength is much worse than that of the Soviet Union at its peak. Moreover, China is in a period of generally relaxed external environment like the 1990s, and it is even less likely to waste resources in some non-core links. At the same time, Beijing, Northern Vehicle Research Institute. ?Just inside the previous small auditorium, a technical seminar on the army''s main battle equipment models was going on. ?With Chang Haonans current LV2 management capabilities and his control of key technologies, he can completely control the project remotely to a certain extent. Therefore, although he has been in Fucheng for more than a month in the past month, and his main focus is on the turbofan 10 project, the research and development work of the die forging press has not stalled. ?Of course, without the direct leadership of the chief designer, efficiency will still be affected to some extent. ?But even so, for veteran comrades such as Yan Yongnian who participated in the last die forging press competition, the current progress is very gratifying. For a weapons industry system that focuses on participation and learning, slowing down is even more of a good thing Chang Haonan''s design and calculation ideas are quite out of the ordinary, and it is not easy for people who have not had much contact with him to follow him. What else In fact, many comrades work on both sides between their unit and the die forging press. This is also easy to understand. ?Under Zhang Yong''s instruction, the technical staff who were transferred to work on projects with Chang Haonan were basically the backbone of each unit and project. For many research institutes, if they completely leave this group of people, their business will collapse directly... ?Chang Haonan is certainly aware of this situation. ??However, it is impossible for him to paralyze half of the weapons industry system at first. Secondly, they did give too much... Therefore, it is not surprising that some familiar faces appeared in the seminar, and even the results produced by Chang Haonan were not surprising. On the huge curtain in front of the auditorium is a tank that looks a little out of place. Simply put, the turret is too small compared to the chassis. Mr. Zhu, Mr. Mao, based on our experience during this period, we have re-established the mechanics model of the vehicle chassis. Considering that the research and development of the weapon system is still in progress, we will still use the original model of turret for the time being..." ?The person standing on the stage to introduce was senior engineer Lin Qingsong, who is responsible for the research and development of the chassis of the new third-generation main battle tank. The two people sitting first below are naturally the chief and deputy chief engineers of this model. Seven typical vehicle operating conditions were selected for the stiffness and dynamic balance of key parts of the body and running system. Eight times the impact load, used to simulate the impact of tracked vehicles on track pads on uneven roads when moving at high speeds..." After passing through a convex vertical wall, the vehicle is usually supported by two sets of road wheels in the middle to support the overall structure and is loaded with 4 times the static load After passing through the trench, the first and last set of road wheels of the vehicle contact both ends of the trench through the track shoes and are suspended in the middle. They are also loaded with 4 times the static load..." The artillery fires forward at the maximum pitch angle, focusing on the stiffness and load-bearing capacity of the seat ring position..." The artillery fires to the side at a maximum depression angle of 90㡭 "After calculation, we found that the maximum stress in the above seven working conditions is much smaller than that around the seat ring, especially the yield limit of the front structure of the seat ring, and the seat ring part will be completely blocked by the turret under normal circumstances, and it does not involve protection capability issues. , you can subtract 1.1 tons of mass here..." "The walking part, especially the suspension part, is not strong enough under the condition of eight times the impact load. Long-term high-speed off-road driving may cause fatigue damage and damage the walking mechanism. This part needs to be reinforced. The weight just saved can be considered. Add it here "The engine compartment is only composed of tailor-welded outer panels. Previously, the only way to improve structural stiffness performance was limited to a single path of increasing the thickness of the outer panels, ignoring the structural load-bearing design potential, which can further reduce weight and improve the vehicle''s performance. Weight distribution, optimizing the overall dynamic balance, and leaving room for weight increase for future new turrets..." After re-optimization, the overall weight of the car body has been reduced by 3.74 tons, of which no less than 2.35 tons can be left for enhanced protection on the front of the car body The strength of the traveling mechanism fully meets the requirements of eight times the impact load, the safe cross-country speed can be increased from the past 35-40km to 55-60km, and it meets the stability requirements for firing while traveling at this speed..." Overall, we believe that this optimized site design can fully meet the needs of future new tank upgrades in one step, and it should be transferred to prototype trial production! (End of this chapter) Chapter 520 Singapore Airshow, main exhibition groups Chapter 520 Singapore Airshow, main exhibition groups ?After successfully completing the work handover, Chang Haonan flew directly back to Shengjing with the test data. The next step is to design and optimize the turbofan 10 compressor structure. ?The blade separation flow active control technology he developed performed even better than expected on the final three-stage high-pressure compressor of the 9A-02 prototype by about 8-10%. From a research perspective, it is certainly a good thing. When improving the turbofan 9A, Chang Haonan left a margin of about 15% based on numerical calculations based on general engineering experience. But it turned out that there was too much left. After the upgrade, the new version of TORCHMultiphysics has improved the simulation accuracy of general turbine machinery to a higher level. ?However, specifically for the Turbofan 10 project, this means that some previous calculations need to be corrected Since the inlets of the J-10 and J-11 are calibrated at a high boost capacity, the total boost ratio of the turbofan 10 cannot be too high. ?Chang Haonans previous design point was 25-25.5. This value can achieve a relatively good balance between the two models of aircraft, as well as between low-speed and high-speed performance. But if it is 10% higher, the actual boost ratio of the compressor will reach a level of 28, which will inevitably affect the supersonic capabilities of the two aircraft. Hence, the compressor blade design, especially the active separation control design, needs to be adjusted more conservatively. Even in the history of aviation development development in the world, this is almost a unique problem. After all, in most cases, the problem faced by researchers is that the boost ratio is not high enough... Fortunately, although this work is troublesome, it is not difficult. With the current relatively sufficient manpower and computing resources, it should not take too long. It was the same Jetta King that took Chang Haonan from Taoxian Airport to the 606th Institute. The car stopped steadily in the square in front of the main building. Also parked here is a "Shenyang Fei" passenger bus. ?About a dozen people in suits were lining up nearby, obviously waiting to get on the bus. This is a rare scene. In the institute, unless there is a formal occasion or a leader comes to inspect, few people will dress so formally. After all, wearing a suit and leather shoes is really uncomfortable. Just when Chang Haonan was curious, he discovered that there were many familiar people in the crowd. We all got to know each other when we were working on Turbojet 14 before. Furthermore, they did not join the Turbofan 10 project, but continued to engage in aeroderivative combustion. There is probably some important activity at the aeroderivative gas turbine. They have all worked on projects with Chang Haonan from the beginning, so naturally some people quickly recognized Chang Haonan. Mr. Chang! Hello, Mr. Chang! For a time, the voices of greetings and greetings came one after another. Since he had been recognized, Chang Haonan asked directly. What important event are you having? Are you all dressed up so formally? Also, why didnt you see Mr. Yan? ?These questions caused a moment of confusion. Mr. Chang, you dont know? After a brief silence, one of the relatively young engineers answered: As one of the three major exhibition groups, China Aviation Industry has been invited to participate in the Asia Airshow in Singapore next week, so a large delegation has been sent there, and we are all accompanying technicians. As for Mr. Yan...he definitely cant go abroad casually, and the progress of the aeroderivative gas turbine for power generation is still a bit tight, so he needs to stay and take charge. It is a large backpack that is half the height of a person on the entire shoulder. From a morphological point of view, it should be empty. ?This is not surprising. ??For this kind of official business trip abroad, it is definitely necessary to purchase some foreign products on behalf of others. It is already very face -to -face for the transportation aircraft to buy the goods directly. ?Of course, a secondary reason is that China does not have domestic transport aircraft large enough to participate in the exhibition at this time. I have been conducting tests in 624 Shangougou during this period, and I have never heard of it. ?Chang Haonan was a little ashamed that he knew nothing about such big news: Butwhat does this main exhibition group refer to? Isnt it just in time for the financial crisis? The economic situation in Singapore is not very optimistic, so the area and specifications of the venue this year have been reduced, and it is impossible to provide a large enough outdoor exhibition area for all exhibitors. However, the United States, France and us are exceptions, each receiving one-fifth of the total area. So this means...QC130 gas turbine will also be exhibited at the exhibition? Hearing the news, Chang Haonan was quite excited. Singapore Asia Airshow is a relatively successful one among the emerging air shows in the post-Cold War period. ?Of course, it is still significantly weaker than those old air shows in Europe. ?However, for China Aviation Industry, which has just begun to enter the world, this stage is not too small. ??More importantly, due to its geographical conditions, the Singapore Airshow will attract more attention from third-world countries such as Southeast Asia. At least in the short term, they will also be Chinas main target customers for arms sales. Originally there was this plan. Another shorter **** said with a somewhat regretful expression: However, a total of two prototypes of QC130 were manufactured, and both were sent to the 708 Institute for technical verification. It was really impossible to take the prototypes to the exhibition, and in the end they became 1:1 plastic models..." This time we mainly worked with representatives from the 410 factory to provide technical support for the J-7F and FTC2000, Guihangs J-9 aircraft. Chang Haonan understood immediately. Both aircraft use turbojet 14B engines. As a model that has only been finalized for a year, for the sake of insurance, it is definitely necessary to bring more technical strength with you just in case. Didnt the J-8C say it was going there? It is naturally impossible for him to forget the first model he actually participated in the research and development after his rebirth. "No, I guess Shengfei has also given up on that export model. It''s almost the 21st century, and I''m afraid not many countries still need an interceptor, even a multi-purpose interceptor." That makes sense. ?Furthermore, even if an interceptor is needed, the MiG-25s in Russia are almost sold at scrap prices, and the price/performance ratio is incredible. ?Chang Haonan originally wanted to ask about the exhibitors this time. ??As a result, before he could ask the question, someone with great interest gave the answer in advance: As far as I know, our main products this time should be the MA-60 passenger aircraft that will soon complete the certification process and start delivery, and the export model of the JH-7, FBC1. The other one is exhibited in the name of a jointly developed model, but it is actually the original Tupolev C808/Tu334. Chang Haonan has naturally been paying attention to the situation in Figure 334. After the two parties signed the contract, Tupolev''s actions were swift. However, Hufei had never had access to Russian technical information before. In addition, although the Tu334 was a regional airliner, it was designed and generated according to the standards of a mainline airliner. Therefore, the speed of digestion and absorption is definitely not as fast as that of Project 11. Now it happens that Russia is not the main exhibition group, so the exhibition area is not enough. Paint Picture 334 with the national flags of the two countries and put it on display in China. It would be a win-win situation. Apart from these three, there may not be much left. The two fighter jets I just mentioned, as well as the helicopters imported from France by Bingcheng, the Chujiao 6 and Qiang 5 produced by Hongdu..." ?The other party counted on his fingers again: "There are not many types, but I heard that the United States will bring the latest F18F carrier-based aircraft that has just made its first flight this time, and France will also display the prototype of the Rafale. In comparison, it seems that our battle is not enough... " Speaking of this, everyone felt a little disappointed. In peacetime, air shows and defense exhibitions are the front line of competition in the aviation industries of various countries. ?Although they all play some tricks, generally speaking, everyone still knows who will win and who will lose. The two latest third-generation fighter jets... Of course, Chang Haonan could not reveal his development plans for the two main models of J-10 and J-11. He could only encourage him with a firm tone: The J-10 was already tested last year. I estimate that our own third-generation aircraft will be officially unveiled in the past few years! (End of this chapter) Chapter 521 Can this also be called a MiG-21 modification? ? ? Chapter 521 Can this also be called a MiG-21? ? ? ? Few people would have thought beforehand that during the preparations for the Singapore Air Show, the most eye-catching model was neither the Rafale nor the Super Hornet, nor the two Chinese passenger aircraft. Rather, they flew more than a dozen sorties in three days, transporting many exhibitor models from all over the world to several An-124s at the Changi Exhibition Site. ?Especially, when a medium-sized helicopter was pulled out of the cargo bay of the An-124, the reporters on the scene spent almost half of the day''s film on this scene. ?This is not over yet. ??The Americans, who felt that this was not going to work anymore, also pulled out a C5, removed the wings of the Black Hawk helicopter that could have flown from the Subic base next door, stuffed it in and airlifted it to Singapore... This is completely an act of vindictiveness. ??Volga-Dnepr''s An-124 charges the cargo owner for each flight, while the C5 costs pure money. ?Of course, the US military, which has a lot of money at this time, doesn''t care about this amount of funds. ? At this time, it was less than 10 years since the end of the Cold War, and giant transport aircraft such as the An-124 and C5, the dominant ones in the East and the West, rarely met the public directly. In addition, information dissemination is not developed enough, and there are not many people even seen in photos. ??It is definitely a top-notch person who can attract media attention. ?Especially in the past few days, these two models, which are similar in size and purpose, just took turns to land here, but there was no head-on encounter between the needle and the wheat. ?This made many media who wanted to take photos of the two in the same frame eager to do so on the opening day. As a result, both the United States and Russia stated that they had only arranged cargo routes according to normal plans before, and had no plans to participate in the exhibition of these two models. As soon as the news came out, the French finally breathed a sigh of relief. They have high hopes for this air show. Due to the backstabbing behavior of the French during the Gulf War (the Iraqi armys automated command system was imported from France, but failed to function at all during the war), the reputation of French weapons and equipment has plummeted around the world, especially in the Middle East. . Coupled with the fact that after the disintegration of the Soviet Union, the CIS countries engaged in indiscriminate dumping at unreasonable low prices, the situation of France''s arms sales in recent years has not been very optimistic. ?It takes time to recover word-of-mouth, so they urgently need to expand beyond traditional markets. Although Southeast Asia and South Asia have been hit by the financial turmoil, at least a skinny camel is bigger than a horse, and it is still better than Latin America and sub-Saharan African countries... Had I known this, I shouldnt have chartered the plane from the beginning ?? Guillaume Le Maire, the leader of the French delegation and also the vice president of the French Aerospace Industry Association, finally breathed a sigh of relief when he looked at the journalists around him who looked regretful. The first few An-124 sorties that came over were actually mostly transporting things to French companies. ?Like passenger planes, it''s okay, but it''s a bit difficult for fighter jets or helicopters to fly from France to Singapore on their own, not to mention that the Rafale is still a prototype. ?So to save trouble, they simply hired Volga-Dnepr Airlines, which had a broken freight rate. As a result, the latter quickly discovered that this was an excellent opportunity to advertise for themselves, so they sent a lot of Russian exhibition equipment. Following on, the situation got a little out of control. Fortunately, the limelight of the opening ceremony was not stolen. The first four days of the Singapore Airshow, including the opening day, are professional days, open only to trade attendees. ??If the attention in the past few days has been drawn to the United States and Russia, the subsequent public open days will not make much sense at all. ??Who is a serious ordinary person who pays for a fighter jet? As the salute sounded at the opening ceremony, the Singapore Air Force A4S attack aircraft and the French Air Force Mirage 2000 fighter jets began a joint flight performance, finally drawing the attention of the media and delegation members from various countries back to the air show itself. ? After confirming that everything was back on track, Le Maire moved his body and began to wander around the exhibition area of ??more than 70,000 square meters. While scouting your competitors, also see if there are any possible deals. ?According to his experience, these third world countries are very casual when buying equipment. ??If the level and authority of the delegation sent are high enough, they may spend money on a whim. ?Although it is generally difficult to get any big orders, no matter how small a grasshopper is, it is still meat. Retailing and wholesale are both businesses, and they are not shabby. ?Perhaps because of the area of ??the exhibition area and the location of the exhibition being far away from the mainland, their two biggest rivals, the United States and Russia, did not bring much eye-catching equipment. ??The Su-30, a multi-purpose fighter that was previously regarded as a huge threat, did not show up. Only a few Su-27s from the Warrior Demonstration Team showed up, and they also left the venue immediately after the performance. As an "air show", the weapons and equipment exhibited by Russia are mainly anti-aircraft missile systems. The latest S300PMU2 is placed opposite the Mirage 2000 booth. Although it seems to have some intention of causing trouble, it does not constitute direct competition with France. ? Americans are still the same. Although the F18F is making its first public appearance, it is a carrier-based aircraft after all. ?Except for a few countries, almost no one will purchase a carrier-based aircraft for use on land... After walking around half a circle, Flamel nodded with satisfaction and put his hands in his pockets, as if he had no opponent. ? Enjoying how lonely it is to be invincible, he slowly walked towards the last area in front of him Huaxia Exhibition Area. At this time, Le Maire''s mentality was already very relaxed. ?It was his own suggestion to arrange Huaxia as one of the three major exhibition groups through behind-the-scenes operations. Mainly to squeeze the participation scale of other major competitors such as Britain and Russia. Judging from the actual results, this strategy is quite successful. Even though China has shown some potential for rapid development in the past two years, the starting point is too low. Even if they are given an exhibition area of ??15,000 square meters, they can only display some uncompetitive things. The cockpit model of the third-generation fighter FC10 Door manufactured for Airbus A320 Horizontal tail manufactured for Airbus A320 Lemel went all the way to watch the flowers, nodded secretly for his wisdom to drive tigers. ??Although this is the Chinese exhibition area, many exhibitors are participating as suppliers, and the most important supplier is Airbus. It is no exaggeration to say that the few tens of meters you first entered could even be regarded as an extension of the French exhibition area. After walking for a short distance, a twin-engine propeller regional airliner made Le Maire''s expression change slightly. MA 60 passenger aircraft. Has proven to be a strong competitor for the ATR42/72 aircraft. ? And since China has signed mutual recognition of airworthiness for regional aircraft with the European Union and the United States, there is no way to set up obstacles in terms of procedures. The market for propeller regional aircraft is not big, and ATR didnt come this time, so its okay, okay Flamel comforted himself in this way. He didnt take a closer look at the 100-seat regional airliner called C808 next to it. As most insiders know, this is actually a Tupolev aircraft with a different paint job. Whats more, there is no manufacturer of large regional aircraft of this level in Europe (not even the UK). This should be a problem for Brazilians or Canadians to worry about. As he moved on, Flamel''s mood improved again. FBC1, a fighter-bomber similar to Tornado, has too single function and poses no threat in the field of arms sales F7MGis the Chinese F7, which is an improved version of the Soviet-made MiG-21too backward and not a threat F7F...is another improved version of MiG-21? He looked up at the fighter jet with its chin inlet in front of him and felt that the world was a little crazy. Of course, it does not pose a threat to the Mirage 2000. Let alone the gusty winds. FTC2000 ? Flamel frowned and looked over and over several times at the display panel in front of him and the plane behind it. I recalled the MiG-21 in my impression. ?At this time, he really wanted to capture a Chinese colleague and torture him for questioning - Can you also call this an improved version of the MiG-21? (End of this chapter) Chapter 523 Better than blue Chapter 523: Outperforming others Awkward. Extremely embarrassed. ?For a moment, Flamel felt that although he was still alive, he was already dead. If possible, he would very much like to retract all the statements he just made. ?This helicopter is obviously an improvement on the Dolphin, but there is no corresponding model from Eurocopter. ? France has indeed considered designing an armed version of the Dolphin, which is the AS365M. ?The French army itself of course has larger Lynx MK4 armed helicopters and Tiger armed helicopters. But some are still very attractive to small countries with low armed needs, or to paramilitary forces such as the coast guard. After all, AS365 is sold all over the world, and the military or government agencies in more than half of the countries are users of this model. ?Hence, it is easier to get started in aspects such as pilot training and ground maintenance support, and there is no need to build an additional logistics system. ?The idea was really good, but in the end it was abandoned due to the insufficient size of the whole machine and too many areas that needed to be modified ?Although armed helicopters theoretically do not need to be manned, the additional weapon systems and additional resistance are a huge challenge to the performance of the helicopter. What''s more, a considerable number of tasks actually require a helicopter with both attack and transportation capabilities to complete. For example, the MH6/AH6 and MH60L used by American special forces, as well as the more classic Mi-24. In short, Eurocopter believes that the basic model of Dolphin is not enough to support it in completing such a mission. Hence, Eurocopter only brought the traditional model AS365N1, which has the highest sales volume, to this air show. AS365M was of course not completely abandoned, but it was postponed until the AS365N2 was finalized and continued to develop based on the new model. result He actually saw the improved armed version of the Dolphin on the Chinese side in advance? ???Le Maire took two deep breaths to calm down, forced himself not to pay attention to Cuarn''s eyes and expression next to him, and strode forward to the helicopter''s promotional board. This is the Singapore Airshow after all, so all promotional materials are at least bilingual in Chinese and English. Cuarn also came up, adjusting the angle to include the Chinese helicopter and Le Maire, who was standing in front of the exhibition board in the cold wind, into the frame. The name of the photo is "AS365M Helicopter in Paris". ?However, Flamel did not pay attention to the situation behind him. ?His eyes quickly scanned the text in front of him and found the content he was most interested in. The usage logic of helicopters is different from that of fixed-wing aircraft. Values ??such as flight speed and ceiling are not very important in most cases. The functions of an aircraft are often restricted by data such as maximum takeoff weight and available hover time. The maximum continuous output power of the engine is 496kW, the maximum take-off power is 535kW, and the maximum emergency power is 575kW The power performance looks quite familiar to Le Maire. Basically the data of Ahaye 1D1. The models that China has previously introduced together with helicopters are the Arriel 1C and Arriel 1C1. However, when there is a basic model, everyones improvement ideas are basically the same, so it is normal to finally come up with improved models with similar indicators... ?Unconsciously, Le Maires understanding of the level of Chinas aviation industry has undergone tremendous changes. It seems that it is not that surprising to independently come up with an improved version of the turboshaft engine... ?However, as a former senior executive of Eurocopter, Le Maire is very clear that the problem of the Dolphin helicopter cannot be solved by replacing it with a more powerful engine - ??If it were that simple, several planned new models would have already been developed. ?Looking past a few less core performance data, continue downwards. The maximum available power of the rotor is 452kw*2 The maximum takeoff power duration is 5 minutes Flamels heart trembled violently. Just like there is a gap between the wheel end power of a car and the output power of the engine, as an aircraft that mainly relies on shaft power, the power output to the rotor end of a helicopter cannot be the simple sum of the power of two turboshaft engines. The most criticized aspect of the AS365 helicopter is that the transmission system design limits the power output. The maximum take-off power of the Arriel 1C engine is about 470kW, but due to the limitations of the transmission system, the power output to the rotor end is only 390kW*2. If you rashly replace an engine with a higher output power, the available power of the rotor will decrease due to a mismatch in the transmission system. This is also the main reason why AS365M was shelved that year. ?Now, since the Chinese people have written all these details clearly on the display board, it is obvious that they are not hastily adding two new engines. Rather, at least the transmission mechanism of the main reducer has been redesigned. Otherwise, there would be no special emphasis on the maximum available power of the rotor. ?This thing is usually in the technical manual, together with the power output envelope. It is data that only insiders will pay attention to. In most countries, especially small countries, the people responsible for equipment procurement are not expert... But how is this possible? ? Flamel couldn''t help but doubt life. ?Changing the MiG-21 into something that others dont recognize is surprising, but its also reasonable. After all, China has obtained some technical data of the MiG-21 since the 1960s, and has always been inextricably linked with the MiG Design Bureau before and since. Furthermore, the reason why the Soviets did not modify the MiG-21 was not because it could not be modified, but because it was not necessary. The first prototype of the MiG-25 was a large MiG-21... ??But the Dolphin helicopter is another story. ??The French don''t modify dolphins, not because they don''t want to, but because they really can''t do it... With his mind in a state of confusion, Flamel didn''t even notice that after the rainproof cloth was removed, the helicopter was slowly pushed backwards by several people. ?It wasnt until reporter Caron walked to the side that he noticed that the helicopter in front of him, called HC (Helicopter-China) 9WY, was already preparing to take off on the designated apron a little further away. Cuarn raised the camera in his hand and pressed the shutter, while Flamel continued to look down at the exhibition board. ?At the same time, you are mentally prepared to endure the violent airflow and loud noise when the helicopter takes off. ?However, the shutter sound kept ringing in my ears and was not covered up by the noise of the helicopter. Sound, of course there is. But generally softer. There is only a high-frequency stable buzzing sound, which is relatively friendly to the eardrums. Why havent they taken off yet? Is there something wrong? ?The moment before he raised his head, a dark corner of Le Maire''s heart even began to expect that this helicopter would make a fool of himself at the air show. However, the next second. He saw that the helicopter had not only taken off, but was even hovering in mid-air, nodding in his direction. ??? Of course, Le Maire knew that this was just a routine greeting before the helicopter flight performance. But under this situation It feels like a provocation no matter what. The more I think about it, the angrier I get. Chairman Le Maire, I have a question. Caron looked at the helicopter that had begun to move rapidly in the sky, and suddenly said: They put this model at the air show, obviously preparing to export it. So, in the contract we signed back then, did we authorize them along with the export license? (End of this chapter) Chapter 524 You cant ask the Chinese for help, right? Chapter 524 You cant ask the Chinese for help, right? This question, for Flamel, is completely a proposition. ?Especially, he had just boasted in front of Caron about his handling of the helicopter business with China. Can''t even push it away. ? Flamel suddenly remembered a British drama he had watched. ?In one of the episodes, one of the three protagonists was suddenly uncovered from an old account that caused a loss of millions of pounds 30 years ago. That time and that moment, exactly this moment. ?Of course, when we signed the contract with China more than ten years ago, it was not really a mistake. At most it is an oversight. On the one hand, the other party was swinging between Bell Helicopter and Eurocopter. If they could not show some sincerity, the entire order might fly away. On the other hand, the Chinese people did give too much... In short, from the perspective of the mid-1980s, there was no reason to turn away such a huge order. The idea at the time was to capture market share first and then make money through subsequent related services provided. This is normal business logic. ??Moreover, even if the production license is transferred, the other party will still need to import a large number of assembly parts from France, and the flow will continue to flow smoothly in the future. ?Even if China is really just doing that one-off deal, it is still better than pushing customers to its competitor Bell. The export license was just negotiated along with the production license at that time. Perstic diesel engines exported to China around the same period also had this idea. ?So now more than half of the diesel-powered ships in China are powered by French origin. ??Pilstick Company has also made a lot of money by exporting key components such as sequential supercharging equipment. Why is the plot completely different when it comes to the helicopter? ? ? China first stopped importing original transmission systems and main rotors, then stopped importing core engine components, and then stopped even the introduction of technology for the Arriel 1D1 model. Forget it. ?Now, people are coming over with improved models to cause trouble? ? Flamel opened his mouth several times in succession, but he really didnt know how to answer this question. He believes that no matter what he says, after being processed by reporters, it will become content that he absolutely does not want to see published in newspapers. Caron turned his head and looked at Flamel beside him. There are silent words in the expression Mr. Le Maire, you dont want the public to know that you were responsible for the cooperation with China in helicopters, which caused the damage to the interests of the French aviation industry today, right? Fortunately, Le Maire is experienced in this area. He knew that no matter whether he explained or denied, he would inevitably fall into the trap that the other party had already prepared. Only take the initiative. If the problem cannot be solved, solve the person who raised the problem. After a brief hesitation, he walked next to the other party and whispered: Our public relations department at the Aerospace Industry Association currently lacks an official partner with an objective stance. I wonder if Mr. Caron is interested For journalists like Caron who specialize in a certain industry, this is an offer that is absolutely irresistible. It is equivalent to him having at least a semi-official status in the entire French aviation industry. ??As long as you apply for an interview, others will give you a somewhat less favorable reception. Sure enough, after hearing these words, Caron decisively gave up and continued to ask questions. After all, it happened more than ten years ago, and its news value is limited. We should still look further forward... He directly helped Flamel find a way out. When the latter heard this sentence, he knew that the matter should be over. ?However, the expression on his face did not soften. After all, the threat posed by this Chinese model is real. Even if Cuarn no longer reports on the relationship between Le Maire and the previous order, such an incident will definitely affect the market reputation of Eurocopter Group - ?The helicopter transmission system you developed was defective. As a result, the defect was discovered by others. Even the improvement plan was developed by others first. Is it possible? ??While the two people here were reaching a secret deal, the helicopter in the distance had also completed a set of dazzling flying movements and began to fly around the field on a routine basis. ?After confirming that Caron''s trouble had been solved, Flamel quickly left the Chinese exhibition area that made his blood pressure rise. The French exhibition area was right next door, so it took him little effort to find the representative sent by the Eurocopter Group among the crowd. Kurt Jean Pierre. ??The descendant of the nobles of the old Parisian flag, of course, he was also an old colleague of Le Maire when he worked at Eurocopter. ?Unsurprisingly, Pierre also kept looking up at the sky with a dumbfounded expression. After all, it only took ten minutes from the time the Chinese people took off the camouflage on the plane to the start of the flight show. ??And the whole process was right next to the original AS365N1 in the French exhibition area. It is normal to experience some stimulation. Little Kurt. Flamel walked to the side and reached out to pat the other person''s shoulder. ?Pierre and his grandfather had the same first name, Kurt. ?Of course, old Kurt died more than twenty years ago. ?However, friends who grew up together will still use this title in less formal situations. No response. Little Kurt? After shouting again, Pierre was pulled out of his thoughts. Guillaume? ??The relationship between the two people is very good to begin with, and since they are considered "ourselves" in the industry, they naturally don''t need to make twists and turns like they did when facing reporter Cuaron. ?Hence, Flamel gets right to the point: What do you think of this helicopter built by the Chinese? ?Pierre turned around, put his hands behind his back, frowned slightly but did not speak immediately. Obviously, he was very confused at this time. ?After a long time, Pierre shook his head: I cant say. But judging from the performance of this helicopter, I feel that the Chinese people seem to understand the Dolphin helicopter better than me..." "If nothing else, when the flight show just started, it took off and hovered in mid-air, then nodded around. I checked the watch during the whole process, and it lasted about 4 minutes and 15 seconds in total." I have seen this set of actions over a hundred times and am very familiar with the process. Normally it can be completed in less than a minute and a half, so the Chinese people must have done it on purpose to show off the hovering capabilities of this model. ??Le Maire nodded, agreeing with the other partys opinion: I just went to see the exhibition board over there. The data above shows that their improved version of the Dolphin can maintain take-off power output for 5 minutes. It is indeed more advantageous than our model. AS365N1 can only maintain a hover of 3 minutes at most under standard mission load. If it is fully loaded, the time will be even shorter. This gap is already quite obvious. Hovering is one of the most important functions of a helicopter. Whether it is lifting and landing transport helicopters, anti-submarine helicopters searching for submarines, or armed helicopters launching most guided weapons, they all need to maintain a hovering state. Three minutes and five minutes are, in many cases, the difference between being able to do it and not being able to do it. Of course, this is secondary. ?Pierre waved his hand and continued: Whats more noteworthy is that even when I just took off and climbed at maximum power, the sound I heard here was not too obvious. In terms of absolute volume, it may not be much lower, but the sound characteristics are completely different from most helicopters. It is the kind of mid-to-high-frequency continuous noise that attenuates quickly and is less likely to cause peoples attention and discomfort. Until this moment, Flamel recalled that he had the same feeling just now ?When he looked down at the display board, he even thought that the helicopter had failed to take off. Hiss So, the trouble is indeed not small ?Plenty of power, stronger functions and lower noise. And the price is likely to be lower. Operation and maintenance habits are still the same as those of dolphins. It is estimated that pilots may not need to be retrained. ??This is not leaving any way to survive, right? ?However, Pierre next to him shook his head again: It cant be said to be troublesome at all. "What''s the meaning?" Flamel looked confused. First of all, the problem of the Dolphin transmission system must be solved sooner or later, and it cannot be delayed forever. The release of this model from the Chinese people at least shows that there is a feasible upgrade plan without the need to tear down the entire design and start over. ?Pierre raised his head again and looked at the Chinese helicopter that had completed its performance and was preparing to land. ?At this distance, two people dont even need to speak too loudly to cover up the noise from the rotors. Secondly, I must admit that their rotor noise reduction technology is definitely at the forefront of the world. I have never seen a helicopter that suppresses pulse sound so well. "if" Speaking of this, Pierre hesitated: If our latest NH90 can achieve this level, it will probably occupy an important position in the 10-ton helicopter market... The first prototype of the NH90 made its first flight in 1995, but it is still in the test flight process. The main reason is that several startup users have different preferences for helicopter performance. Like all other multinational cooperation projects, there are many dreams and long nights. If it is delayed for a few more years, this model will probably become obsolete. So Eurocopter, which is leading the entire project, is in a hurry now. How does NH90 achieve this level? Flamel looked at his friend with shock in his eyes: You cant ask the Chinese for help, right? (End of this chapter) Chapter 525 Nh90 helicopter, looking east Chapter 525 Nh90 helicopter, looking to the east "actually" ?Pierre reached out and rubbed his chin, hesitated for a while and then continued: I think theres nothing wrong with it. Flamel slowly turned his head and looked at the other party with a ghostly expression: Do you really know that it is the NH90 project? "certainly." Because the helicopter 9WY had landed on the tarmac again, the two men''s eyes returned from the sky to the ground. ?Pierre nodded as he walked forward. NH90, NATO Helicopter90, NATO utility helicopter. Quickly step forward to follow the other party, Lemolt, bite the stress on NATO: Are you going to cooperate with the Chinese to produce helicopters for the NATO system? Although there are plans for a civilian model of the NH90, the development project itself is still a military model, and the final funding was provided by the Ministry of Defense of several NATO countries. Collaborating with China on such a project is simply fanciful in the eyes of Le Maire. NATO helicopters...that sounds nice. ? Le Maire mentioned the cooperative nature of the NH90 helicopter, which made the originally calm Pierre very angry: I know that you are now the vice president of the French Aerospace Industry Association, and you have a lot more things to consider than when you were in the company. ?He turned around and stared at his childhood friend: But Guillaume, you must know that the aviation manufacturing industry ultimately relies on technology to speak for itself. The airplane will not care how noble your ideals of uniting Europe are, nor how much effort you put into bridging the differences between you. It will only work accurately, precisely, and rigidly in accordance with physical principles. And my friend, politics cannot change physics. ??Some somewhat fierce words caused Flamel to fall into silence. ?Perhaps seeing his wavering, Pierre continued: "The NH90 project started 13 years ago. Soon the British withdrew from the project without any surprise, then the Germans, and then the Germans rejoined. Now every country has its own NH90 in the project. And I watched with my own eyes as the design became fragmented through compromise after compromise. In order to promote their automatic carbon fiber laying machine, the Dutch require the aircraft body to use a large amount of one-time thermoformed carbon fiber material, claiming that it can reduce weight. However, the use of large-area carbon fiber is not mature at all. It will not only reduce the structural strength of the aircraft, but also cause the structural parts of the aircraft body to be unable to be repaired or replaced. Once damaged, it will lead to the overall scrapping. Of course it doesnt matter for passenger aircraft, but what we are designing is a helicopter. Even if it is a civilian helicopter, it is impossible to avoid damage during low-altitude missions, let alone a military helicopter? At that time, the American Black Hawk and the Russian Hippo will only need to replace a piece of skin to be repaired, but the NH90 will need to replace the entire body made of carbon fiber? This does not meet the requirements of the use environment at all. There are also the Italians who require helicopters to use the T700-T7E engine, saying it is because of better performance and higher power output, but in fact it is only because the Fiat Group is involved in the development and production of this model. American engines are even calibrated in imperial units. It is impossible for us to design a transmission system that is perfectly compatible with both RTM322 and T700 engines. We can only make sacrifices in transmission efficiency. And the Germans ?Pierre spent the next ten minutes criticizing each of these "allies" for the troubles they have brought to the NH90 project. Finally, he summarized the current status of the project: If we continue like this, I can certainly build the NH90, but Im afraid it wont meet the requirements of any country, let alone challenge the status of the Black Hawk helicopter. I have no problem with international cooperation, but we need truly meaningful cooperation that can improve the level of the project, rather than inviting a bunch of **** who keep wrangling for their own interests to delay R&D progress. Then if its your wish, what are you going to do? This time, Le Maire did not directly refute, but first asked the other partys opinion - As an administrator who came from a technical position, he is more rational than most of his peers. What Pierre just said is certainly reasonable. Otherwise, a not-so-complex 10-ton helicopter project like the NH90 would not have been delayed for nearly 15 years. You must know that the "90" in its name refers to the 1990s. ??However, its almost the turn of the millennium, and the test flight process is not even halfway through, and there are still many problems that need to be reworked. ?However, perhaps because he was afraid that the other party would say something shocking, he then added: It was agreed in advance that it would be politically feasible to completely abandon allies and engage in independent research and development. I said, I have no problem with international cooperation. OPierre''s expression also softened a lot: But we must follow the Airbus model. Countries can have equal status in cooperation, but in terms of technology, especially the overall design of the aircraft, a subject must be established. "Those other countries that are willing to participate can provide technology that meets the overall design requirements. We will also select suppliers that meet the requirements from the partner countries and will not let them work in vain. Those who are unwilling to participate can also simply contribute money. At that time, the profits will be distributed according to proportion, or some production links will be completed in their country. " "But if you are unwilling to do these things, then get out of the project. It is better than dragging it out until the end and creating a flashy waste. We French people will not be able to live without leaving NATO. Besides, there will always be people who will choose to stay. " He expressed the thoughts that had been in his mind for a long time. What about the Chinese people? ???Le Maire asked: It is definitely impossible for the Chinese to carry out military cooperation with us within the cooperation framework of NATO. How are you going to get them involved? Obviously, he had begun to seriously consider the plan proposed by Pierre. If nothing else, "making helicopters quieter" is undoubtedly very attractive. ?Compared to the Black Hawk, the current disadvantages of the NH90 are that it is not compact enough, has poor maintainability, and has a smaller door area on the side, which limits the range of the door machine gun. The advantage is that the cabin is larger and there is a tailgate that can carry large cargo. The maintenance problem can be solved by replacing carbon fiber with high-performance lithium aluminum alloy, but even so, each can only be regarded as having its own advantages and disadvantages. ?In this case, if you can add a "quiet" king bomb, it will undoubtedly be a surefire winner. Facing this question from his friend, Pierre was already prepared: I studied the agreement that the European Aviation Agency and Airbus reached with China last year, and found that they like the technology for technology type of cooperation. Of course, NH90 is a military project after all, and it is not convenient to engage in in-depth cooperation like aviation meteorological safety issues, but it can be reduced in scale. For example, let them provide a complete noise reduction solution for NH90. In exchange, we can also provide them with technical assistance on a peer-to-peer project and solve problems on a case-by-case basis without teaching each other methods. In this way, only one joint venture company is needed to complete the entire process. After the cooperation is over, the companies break up, and God will not find any traces. Flamel finally saw that the other party was prepared. ?Not only the method, but also how to deal with the funeral has been planned. ??It is definitely not a plan that can be thought of on the spur of the moment. ?However, after a few minutes of hesitation, he slowly spoke: As for the way to cooperate with other allies, I need to go back and discuss it with my colleagues at the Aerospace Industry Association and the Ministry of National Defense. I cant guarantee you the specific results for the time being. But for China to provide noise reduction solutions for NH90, you can start preparations after you return. Ill convince those old diehards. (End of this chapter) Chapter 526 Layout in the field of industrial control Chapter 526: Laying out the Industrial Control Field ?What happened at the Singapore Airshow has not yet had any impact on Chang Haonan, who is in Shengjing. ?In the next more than half a month, he was completing, refining and revising the high-pressure compressor design of Turbofan 10 based on the test data of Turbofan 9A. Because the goal is to lower the overall boost ratio of the compressor, this certainly does not pose any difficulty for Chang Haonan, who has almost mastered the overall design plan. In addition to ensuring supersonic performance, lowering the stage pressure ratio also brings another layer of benefits. ??The bearing and gear samples provided by Fuzhou Bearing Group have a longer life than expected. Reducing the ultimate working intensity of the compressor will also help improve the overall overhaul interval and life of the entire engine. For the Turbofan 10 project, the difficulty still lies in manufacturing. Although the fans and high-pressure compressors of turbofan engines are not considered hot-end components and have relatively low operating temperatures, as long as they are related to aerospace engines, especially those involving aerospace engine core engines, the processing difficulty is not low. In order to reduce the weight of the blade, the fan blade will adopt a weakly rigid hollow structure. However, the hollow blank often has large errors. In addition, the product has a large twisted profile, and there are two constraints: profile and wall thickness, which leads to production efficiency. It is difficult to improve the yield and yield rate. An excellent chief designer cannot just focus on the things on his desk, but must consider the optimization of the production and manufacturing process in the initial design process. Hence, Chang Haonan spent a considerable part of his time in the 410 Factory. "Mr. Chang, we have recently upgraded a batch of equipment. The front-end manufacturing process uses superplastic forming and diffusion connection, and the back-end process uses CNC milling and abrasive belt polishing. Under the current technical conditions in my country, we have achieved great results in terms of processing efficiency and The balance point found between processing accuracy. The production efficiency of the superplastic forming process is very high, but because it involves multiple high-pressure and high-temperature cycles, it can easily lead to problems such as large blade deformation, low shape consistency, and uneven machining allowances. However, when using the back-end Abrasive belt grinding can accurately remove excess material and is more efficient than manual grinding..." ?Zhong Shihong followed Chang Haonan and introduced to Chang Haonan while walking past the production equipment being debugged. ?At that time, Chang Haonan could only come here for a visit, but now it is considered an inspection. Abrasive belt automatic grinding...how do you do blade profile inspection? Hand-manual grinding can rely on the experience and intuition of masters, but if you switch to automated equipment, you must have a way to accurately measure the blade profile before grinding, and then compare it with the processing target to determine the grinding process indicators. Especially for hollow turbine blades, because they are hollow inside, there is also the issue of wall thickness detection. Chang Haonan must determine the processing capabilities of the 410 factory in order to determine the design style of the internal hollow cavity and truss structure. Although the internal conditions of the blades will not affect the performance of the compressor itself, if the actual mass distribution of the blades is very different from the original design, it will affect the dynamic balance of the blades and thus affect the service life. "The outer contour inspection uses a three-dimensional coordinate detector. We cannot make this thing with such high accuracy ourselves for the time being. However, in previous cooperation with the European Union, they bypassed the Wassenaar Agreement and exported a batch of functions to us that are not subject to Limited equipment ?The Wassenaar Agreement is theoretically non-enforceable. Member states can decide on their own whether to issue export licenses for sensitive products and technologies. It is actually not difficult to circumvent it. ?Especially now that the EU is at its peak, decisions made unanimously by several member states are unlikely to be obstructed. On the contrary, as the number of future EU member states increases, it will be easy for one or two small countries to be controlled and add sand to the EU. As for money European products are indeed expensive. ?However, the only disadvantage of expensive things is that they are expensive. Fortunately, Factory 410 is indeed not short of money these days... As for wall thickness detection, we use technology developed by ourselves. Speaking of this, Zhong Shihong turned around and pointed at the two devices placed not far away: "There is an engineer in our factory who has studied the repair and remanufacturing technology of damaged blades for many years. Although the specific method of repair has not been fully understood, he has developed a wall thickness detector based on ultrasonic principles based on CNC machine tools, just like Its like the CT used in the hospital..." Chang Haonan had a vague impression after hearing what the other party said. ??More than a year ago, when he first came to the 410 Factory to inspect the production of the turbojet 14, Zhong Shihong mentioned such a thing. But firstly, Chang Haonans attention was entirely on the turbojet 14, and there was really no extra energy. Secondly, the core of the damage repair and remanufacturing technology is actually additive manufacturing, that is, 3D printing. In the late 1990s, Basic research on the background didn''t yield anything, so I didn''t get involved at the time. Unexpectedly, the flowers inside the wall will bloom outside the wall. Although the original research content did not achieve much results, it has gained a lot in other aspects. ?Of course, in fact, quite a few technological breakthroughs come from this. According to the standard reporting process to superiors, after the achievements have been discussed, the next step is to discuss the difficulties: The main problem we are currently facing is that it is difficult to accurately estimate the material removal rate of abrasive belt grinding, which results in unstable abrasive belt grinding efficiency. We can only carry out segmented grinding, and then inspect it after each segment is completed. " Hard grinding This is a research direction at the microscopic molecular level. It is indeed not what I am good at now ?Chang Haonan thought about it for a while and found that this was indeed his knowledge blind spot. ??Although everything remains true to its roots, at least we have to go back and learn some knowledge of molecular microdynamics. Molecular weight ?This time Zhong Shihong was stunned: Mr. Chang, we are engaged in mechanical processing, so there is no need to pursue an accuracy of one or two molecules... ?Chang Haonan was stunned for a moment, and then realized that the other party had misunderstood what he meant. Studying molecular dynamics is not to improve the accuracy to the molecular level. That is of course impossible..." "Theoretically, the total volume of local effective abrasive cutting can be derived by combining the material removal volume of a single abrasive particle. Then assuming that the total abrasive particle removal volume is equal to the material loss of the rail surface cuboid micro-element, any grinding path can be established. Grinding depth model ?Zhong Shihongs eyes gradually became clear and transparent. "In short, the purpose of studying the micro is to guide the process technology in the macro sense. Due to random and irregular motion at the molecular level, the calculation accuracy will be very poor, but at the macro level, due to the principle of large numbers, the impact of this irregularity can be ignored. Regardless Chang Haonan summed it up directly. ?In fact, Zhong Shihong still didn''t understand, but he was quite self-aware and knew that even if he continued to ask questions, he would only become more confused, so he just nodded. Anyway, he is responsible for managing production and manufacturing, so he does not have to understand the specific technical details. Those who kill fish do not necessarily need to be able to forge knives. "I will return to the capital in about two days. I will try my best to prioritize this issue at that time. It is best to integrate it into the industrial control system so that the grinding process only needs to be set once or twice to complete it. Chang Haonan actually didn''t have this idea at first, but halfway through the sentence, he suddenly remembered Wei Yongming, who he had met several times before. Based on time, the other party should be graduating from graduate school soon, and he can be recruited into the Torch Group by then. ?Although Chang Haonans plan for the company is to focus on light assets and intellectual assets, and follow the route of technical cooperation and intellectual property accumulation, it is impossible to just focus on the product TORCH Multiphysics. It is necessary to expand the scope of business. Industrial control software and industrial control computers are obviously a good breakthrough point. ? He ??was reborn a little late, and I am not an expert in the field of electronic technology. It is a little late to start seizing the desktop market. However, the industrial field has not yet formed a strong monopoly relationship like that of later generations, so there is great potential. (End of this chapter) Chapter 527 Im going to receive the award again. Chapter 527: Going to receive the award again According to the original plan, Chang Haonan''s inspection at Factory 410 should last two days. After all, in addition to the turbofan 10, this place is also responsible for the production of many other models. Turbojet 14 is currently the absolute main force in generating income. Considering that a considerable number of new aircraft such as the J-8C and export aircraft such as the J-7F are using this model, the strong demand for the turbojet 14 is likely to continue for 10-15 years. So Liming Group simply transferred all production related to the turbojet 13 to Guifa Group, which had provided counterpart support at the time, and converted its two main manufacturing workshops to produce the turbojet 14. As for the Turbofan 10, since the new generation of engines has higher requirements for production technology, and Liming Group is not short of money at the moment, they directly allocated a piece of land and prepared to build a more centralized modern workshop dedicated to to produce this brand new model. In addition to its main products, many gas turbines and compressors and other impeller machinery in the aviation industry are also produced in the 410 factory. ?Of course, these are definitely not qualified to occupy the main workshops, or even enter the main factory area. Many of them are completed by building separate factories in the surroundings. Chang Haonan''s trip on the second day was supposed to be to such a subsidiary company specializing in the production of special gases. According to the previous deal with Russia, all the ion plating equipment delivered by the other party will be in place. This is a complete surprise for Chang Haonan, because if a layer of titanium nitride coating with high adhesion can be added to the inner wall surface of the turbine and combustion chamber, the temperature in front of the turbine can even be further increased to achieve a truly "quasi-four" generation level. There was no way to set the temperature lower before. If it was possible, who wouldnt want to set it higher... ?However, the content of technology exchange is limited to equipment and related technologies, and the problem of raw materials still has to be solved by oneself. This special gas company can produce the protective gas needed in the coating process. Its just that the plan cannot keep up with the changes. Chang Haonan had just left the production workshop and before he had time to have dinner, a call came to his mobile phone. is Ding Gaoheng. ??This time, he was not asked to find a nearby confidential hotline to call back. He was directly asked to return to the capital the next morning. The plane has been arranged. The director of the Science and Technology Commission spoke directly and called people back directly. That must be a big deal. Fortunately, the design optimization of the compressor has basically come to an end, and it is not a big problem for Chang Haonan to leave now. As for the inspection of the special gas plant, there is no rush. In short, early the next morning, Chang Haonan took a Challenger business jet directly from Beiling Airport back to the capital, and then rushed to the Science and Technology Commission without stopping. ? During this period, he first kept an eye on the testing progress of the turbofan 9A at the 624 Institute. After returning to Shengjing, he directly devoted himself to the technical research and development of the turbofan 10. ? I have been at work for more than two months. I can only control the situation at Torch Group remotely through the phone every day. Naturally, my image is a bit rough. ??I woke up very early this morning, and it took several hours by plane and car to get to the Science and Technology Commission. In short, when Secretary Lan saw Chang Haonan at the gate, he almost didn''t recognize him. Finally, he saw Zhu Yadan next to him and confirmed his identity. Then he was quickly invited to the dormitory of the Science and Technology Committee, where he freshened up a little and changed his clothes. Finally returned to human form. Chang Haonan''s plane landed very early. After a lot of trouble, it was actually only normal working hours at this time, so he and Secretary Lan walked to the office of the Science and Technology Commission. Director Ding is so anxious to call me back this time. Is there another emergency? On the way, Chang Haonan first broke the silence and asked. Ding Gaoheng called his cell phone directly, so he couldn''t even talk about anything involving confidential matters. Although Secretary Lan is not a particularly high-ranking person, he basically knows everything he needs to know because of his special position. But when faced with this question, he was stunned for a moment, and then answered with a smile: It has nothing to do with the emergency. Mr. Chang, you are such a noble person and forget things. It is almost the end of February. I will definitely come back to you to receive the award..." The Science and Technology Award Selection Committee contacted Torch Group before, but they said you were not here After all, Torch Group is a company affiliated with the Science and Technology Committee. Even though it has an inseparable relationship with the aviation industry system, most of the people within it do not have corresponding confidentiality rights. Hence, Chang Haonan would not tell them his specific itinerary, and it was normal for him to find it through the company if he could not find it. Science and Technology Award Selection Committee Chang Haonan then remembered that he seemed to have said such a thing last summer. His "Xi soil" flood control equipment played an important role in the entire rescue process. However, the honors established for that flood rescue operation were strictly for those who at least participated in front-line operations. I couldn''t pick one to be awarded to Chang Hao. South. ?Later on, I decided to just forget it and leave it to give a BUFF during the selection of the Science and Technology Award. Its just that too many things happened in the second half of 1997. If Secretary Lan hadnt reminded him, even Chang Haonan himself would have almost forgotten about it. ?Of course, under normal circumstances, Chang Haonan should almost get a science and technology award, but now with the buff, the level of the award may be higher. At this time in 1998, the supreme national science and technology award had not yet been established, so it was naturally impossible to win it. There are four remaining National Natural Science Awards, National Technological Invention Awards, National Science and Technology Progress Awards and International Science and Technology Cooperation Awards. In principle, there is no distinction between high and low awards, only by field. The two of them walked and chatted, and soon arrived at Ding Gaoheng''s office. The latter was hanging his woolen coat on the hanger at this time, and he had obviously just gone to work. Seeing that Chang Haonan came with Secretary Lan, Ding Gaoheng took out a beautifully framed envelope from his desk drawer: "Secretary Lan should have told you just now that I asked you to come over this time to receive the award. This is an invitation on the spot. It will be in the Great Hall the night after tomorrow. Make good preparations when you go back." Chang Haonan was somewhat relieved when he saw that what the other party brought out was an invitation rather than a certificate of award. In the 1990s, several awards were awarded as low as the fourth prize, and the number was quite large. Therefore, under normal circumstances, the third and fourth prizes were directly announced in a list, and then the certificates were sent to the recipients. The unit is in trouble. Only second prize winners and above will come to the site to receive their prizes. ??And you wont know exactly what award you won until you arrive at the event. In another two years, even second prizes will no longer have this link, and third prizes and below will not even be awarded at all. ?Of course in the Internet age, all awards will be announced in advance. Of course there is still a ceremony, but the suspense cannot be left at that time. Xiao Chang, what kind of award do you think you will receive by then? The selection of this award is handled by the Science and Technology Committee, and there is a special committee, so even Ding Gaoheng doesnt know about it at the moment. As for Mr. Chang, I think its definitely fine to wait... Secretary Lan next to him poured water for Chang Haonan and Ding Gaoheng respectively, and sat on the sofa next to him. ?? Chang Haonan himself seemed to be bragging about this kind of statement, so Secretary Lan accepted it very appropriately. I also estimate that the first prize is stable. Ding Gaoheng picked up the tea cup and took a sip of water, and then continued: I just dont know which prize will be awarded. Comrade Xiao Changs research fields are so broad, I think except for the International Science and Technology Cooperation Award, the other three seem to be relevant..." (End of this chapter) Chapter 528 Top Versailles, my legend fills the worl Chapter 528 Top Versailles, my legend fills the world Receiving an award is nothing new for Chang Haonan. ?However, this is indeed the first time for the National Science and Technology Award to be awarded at this level and level. ?Of course, I have had the opportunity to meet all the leaders of the university before, so I will definitely not be nervous. Just follow Ding Gaoheng''s suggestion and take good care of yourself before going. Mr. Chang, just one button on the suit is enough Shirt cuffs must be 1-2cm longer than suit cuffs "The width of the tie should match the width of the lapel of the suit jacket. At your age, you can choose a slightly less plain one, but the occasion is formal and not too fancy..." ?Chang Haonan feels a little regretful now. ??You shouldn''t have told Teacher Yang Huimei about this in the morning, and asked the other person to come over for your reference. The result is that after referring to it, it becomes more of a guest. ?? He just felt like a puppet, listening to Yang Huimei giving him dressing lessons and letting the other person make gestures on his body. ?In his last life, Chang Haonan was an ordinary senior engineer. The occasions that required him to attend were unlikely to be important ones. They were mostly transparent and he could just buy a complete set of clothes. After his rebirth, his status has improved, but most of the time he wears work clothes or lab coats, and he really has no idea about matching clothes for formal occasions. In the past few times when I attended events or received awards, I always wore a suit previously issued by the school. The size is customized, but the layout and so on are all unified. ?Chang Haonan only has this one formal suit. ?Originally, he thought that since he didn''t have a choice about the coat, he could just do whatever he wanted with the rest. ??As a result, Yang Huimei took her to a high-end shopping mall in the city center. It had been more than an hour and she still hadn''t decided on the specific combination. Sister Yang, thats almost enough, theres no need to change so much ?Chang Haonan really had nothing to do about this situation. ??Although he is about the same age as Yang Huimei''s son, the two of them have a superior-subordinate relationship and cannot be called Aunt Yang, so they had to give themselves a super senior. You are attending a national event on behalf of our Torch Group today, so you must not be careless... ??Although Yang Huimei said so, Chang Haonan suspected that the other party was enjoying the pleasure of shopping by dressing up her clothes. Unfortunately there is no evidence. Mr. Chang, its almost time, we have to leave. ?Zhu Yadan looked at his watch and rescued Chang Haonan just in time. ?Although Yang Huimei still had some unfinished ideas, she couldn''t really delay Chang Haonan''s business, so she had to give it up. Huhthanks to you for rescuing me Chang Haonan, who was sitting in the back seat of the car, was arranging his clothes and said with lingering fear to Zhu Yadan who was driving in front. I have to say that Yang Huimei has a good taste, and the outfit she chose is much better than Chang Haonan''s own straight male aesthetic. It doesnt matter, its my duty to protect the chief. ??Zhu Yadan glanced at the rearview mirror and replied in a slightly joking tone. Because of such an incident, when Chang Haonan arrived at the Great Hall, there was still more than an hour before the official entrance. ?Of course, such a large-scale ceremony must have taken this situation into consideration and would not let them stand outside. After all, there are many people coming from other places, so you must arrive early to reserve some time. Therefore, Chang Haonan was led by the etiquette staff to a side hall next to him to rest temporarily. Having been trying on clothes all afternoon, he was originally going to sit down and take a good rest, but before his **** could get warm, he heard a familiar voice. Comrade Xiao Chang, good afternoon. Chang Haonan raised his head. Mr. Yang? And Mr. Yan? are two old acquaintances. ?Yang Fenghao, and Yan Zhongcheng. Considering that both the Turbojet 14 and the J-8C were officially finalized in 1997, it is obviously not surprising that these two appear here. ?Although the age difference between the three of them is quite large, they can be considered as former colleagues, and they havent seen each other for a while, so naturally they exchanged pleasantries for a while. Comrade Xiao Chang, if our two projects can win awards this year, your contribution is indispensable. Yan Zhongcheng couldn''t express much on his face because he was injured, but his gratitude to Chang Haonan could still be heard in his tone. "yes." ?Yang Fenghata next to him also nodded: When we applied for the project, we both ranked you second among the main achievers. You will see it when the awards are given later. These two can only receive the National Science and Technology Progress Award, and applications for this award are made on a project basis. Although only the first finisher can take the stage when receiving the award, all names will be listed. ?Similar to this, there is the National Natural Science Award, which is also selected based on projects. ?Of course, if you are good enough and can complete a project by yourself, the main person who completes it can also write only one. As long as no one raises objections during the subsequent public notice period, it will be fine. The National Technology Invention Award can only be awarded to individuals. ?For projects like the J-8C or the turbojet 14, the first person to complete the project must be the chief designer. ?Chang Haonan has taken a lot of advantage by being ranked second as a consultant. ??Although this ranking no longer makes much sense to him today. But now that youve got the benefits, you still have to be humble: Its all the result of everyones joint efforts, and I just played a part in it. This is what we as aviation people should do... Just when the topic of the three people shifted from the previous project to the future development of China''s aviation industry, another clear voice sounded from behind Chang Haonan: Permanent worker? You are indeed here too. Chang Haonan knew who it was without even looking back. Because now almost only Xu Yang still calls him Chang Gong. ?Xu Yang, who was wearing a women''s suit, moved lightly and soon came to Chang Haonan''s side. She was not directly involved in the August 3rd Project, so Yang Fenghao and Yan Zhongcheng naturally did not know her. Chang Haonan had no choice but to introduce the two parties to each other. ? Xu Yang is usually taciturn, but that''s just because most people can''t keep up with her thoughts, which makes her too lazy to talk. It''s not really autistic. In terms of communication skills, I''m afraid he''s better than Chang Haonan. ?Hence, a chat between three people quickly turned into a conversation between four people. ?When Xu Yang heard that Chang Haonan was the second person to complete the two projects, he first showed a slightly surprised expression, and then covered his face and chuckled. "actually" Actually, the project I applied for Using Differential Evolution Algorithm to Optimize Water, Thermal Power Systems and Dynamic Environmental Economic Dispatch, the second completer... is also a regular worker..." ?There was a moment of silence. ?Although this lounge is full of small and medium-sized groups of acquaintances chatting, Chang Haonan and Xu Yang are really a bit ridiculously young among the crowd here. ??And they all have outstanding looks. So the four people really attracted a lot of attention. Just as the atmosphere fell into an awkward silence, an old man of medium height and a somewhat bossy hairstyle walked up to Chang Haonan: Are you...Comrade Chang Haonan? Yes, I am Chang Haonan, may I ask who you are Chang Haonan was very sure that he had never seen the person in front of him, and since the other person first asked about his identity when he came up, it obviously meant that he didn''t know him either. Oh, my name is Li Zhihong, a professor at Bingcheng University of Technology. ?The other party quickly introduced himself. Hearing this name, Chang Haonan still had no impression, but Yan Zhongcheng''s eyes lit up: Professor Li, are you the person in charge of the research project New principles and new methods of digital precision machining of high-performance complex curved surfaces? The new gas turbine project I was recently responsible for used the spiral bevel gear you developed, which improved the service life by more than an order of magnitude Hearing what Yan Zhongcheng said, Chang Haonan had a little impression. ?It seems that there is such a project at Seiko Project, but he has not paid attention to who is the person in charge, so he has no memory of the name Li Zhihong. Hiss...Professor Li. Xu Yang, who was standing next to him, suddenly said: Isnt the second person who completed this project also... a regular employee? Three other pairs of eyes looked at Li Zhihong at the same time. "ah?" Professor Li couldn''t help but feel a little hairy when he was stared at like this. After assessing for a while and making sure that he would not suffer physical retaliation for telling the truth, he spoke with some lack of momentum: Thats not true, Mr. Chang did not directly join our project after all If you write it hastily, the impact may not be very good... This made Chang Haonan finally breathe a sigh of relief. ??If he really had to be the second-place finisher for so many people at once, he would still have a bit of a burden. ?However, Li Zhihong changed the subject: However, after all, our project was funded by the Seiko Project, and its successful completion was also due to the calculation tools developed by Chang Gong. Therefore, in the acknowledgment section of the project completion report, Mr. Changs name was specifically listed..." Absolutely ?Chang Haonan helplessly held up his forehead. By the way, Comrade Xiao Chang was invited this time. What projects and awards did you apply for? After a few people chatted for a while, Yang Fenghao finally asked what he wanted to ask just now. Those who have been invited to the Great Hall will be on stage to receive their awards later. Unless there are special circumstances for the first completer, such as the death of Comrade Feng Kang, the first completer of the "Hamiltonian system''s symplectic geometry algorithm" project at the Academy of Sciences, the second completer will generally not be present. So Chang Haonan must have been invited as the first person to complete a certain project. Is this... Chang Haonan lowered his head and thought for a while, and finally shook his head: Im not sure either How could it be unclear? ?Li Zhihong was quite surprised: Although the unit is generally responsible for applying for these awards, we will definitely notify you of the specific information submitted? Chang Haonan nodded: I have indeed informed you. But there were a lot of projects submitted, and I didnt know which project was evaluated for a while ?Several other people suddenly felt... Dont really want to talk to him. (End of this chapter) Chapter 529 The winning suspense is announced! Chapter 529: The suspense of winning is revealed! In principle, the National Science and Technology Award does not limit the number of projects that the same person can submit for selection as the first completer. Mainly no one is thinking in this direction. Because generally speaking, a project that can win a grand prize of this level, especially one that is invited to the Great Hall to receive the award, that is, a project that has won at least the second prize, cannot be the short, flat, and fast type. ? ? Normal people can make one award-winning project in their lifetime, which is basically like smoke rising from their ancestors graves. For the more powerful ones, it often takes a few years before they can participate for the second time. So, there has never been a situation like Chang Haonans before Fortunately, after a few people chatted for a while, time passed quickly, and soon the venue staff came in to inform that they were ready to enter the venue. Finally, the somewhat awkward atmosphere returned to normal. Everyone in the lounge got up when they saw this, walked towards the entrance of the Great Hall outside, and lined up at the door, waiting for the security check ???This kind of ultra-high-level ceremony, not to mention the high-level leaders who will be present to award the awards, is also the people sitting below. The worst is the Taishan Beidou in the research field. Naturally, we can''t be careless when we get it together. ??If something goes wrong, the loss will be huge. ?Another point is that random photography is not allowed during the award ceremony. Including reporters reporting on-site, they are carefully selected to ensure they are reliable before they can enter, and promotional materials must go through multiple rounds of inspections before being published. After all, quite a few of the National Science and Technology Awards are classified projects, and it is not easy to spread them around. Some of the most confidential projects will only give out a code name even on site, and the recipient will be designated by the applicant unit instead of the first person who completed the project. But most general-level projects, such as the J-8C and Turbojet 14, will still be written in order to give the winners a sufficient sense of honor and participation. ??Its just that detailed information cannot appear in public reports. After all, if this were not the case, there would be very few items in the entire award ceremony that would not be classified at all, and it would just end up being a Riddler Contest, which would lose its original meaning... As the official start time of the ceremony approached, more and more locals from the capital came to the venue. ?It has been more than two years since Chang Haonan was reborn. Even if he did not deliberately work hard, with his way of working, he has a lot of connections, so naturally he sees many familiar faces. Academician Liu, you have to win a special prize this time... Academician Liu is naturally Liu Zhenxiang. ?His presence here is not surprising at all. ???Although in principle, the SB101 high-altitude platform was approved and put into use in 1996, it has missed the project application for that year. Whats more, several major projects based on this high-altitude platform were all carried out in 1997. This also includes the finalization of aerospace engine testing standards. ?It is reasonable to win the National Science and Technology Progress Award. Hey, Xiao Chang, please dont say that. Liu Zhenxiang quickly waved his hand: This is your first time to apply for an award, so you may not know anything yet. The special prizes at all award levels are not permanent awards. They are not selected from the submitted projects every year like the first prize. Instead, only those who meet a series of strict requirements may be selected. Chang Haonan certainly knows that the special prize is not permanent, but he has never studied the awarding rules before. ?The reason why I was just certain that Liu Zhenxiang would win the special prize is because in his previous life, the latter won the 1997 Special Prize for Scientific and Technological Progress. ?The high-altitude platform has brought countless more results now than in the previous life, and the award level will definitely not drop. So he opened his mouth and asked: Is this just a possibility? Liu Zhenxiang has experienced many battles in this area and naturally knows more than the fledgling Chang Haonan: Well, it still needs to be unanimously agreed by the award committee, and then reported to the Science and Technology Committee and the central leadership. The process is very troublesome. So these awards combined, the special prize has only been given out a few times. Like the Natural Science Award, because our countrys level in the field of natural science is relatively low, there were even exceptions for a few years when even the first prize was vacant because there were really no results that could be put on the table ?These selection details are all public. If Chang Haonan went to the Science and Technology Commission to ask, he would definitely be able to ask. But just like public legal provisions still require lawyers, it would be too troublesome to read this kind of thing by yourself... "I see" Chang Haonan nodded clearly: "But I think the problem shouldn''t be big. After the high-altitude test bed was put into use, it immediately produced a lot of results. The contribution to national defense security and national economic development is obvious to all, not to mention the follow-up The No. 2 station under construction provides valuable experience..." Then let me borrow your good words from Xiaochang... Liu Zhenxiang did not deny it again. Apparently, he also had some expectations in his heart: If it can be judged, then your contribution will be indispensable in this award... ?Although Chang Haonan has never directly participated in the research and development of the test bench, the high-altitude test bench is ultimately a tool. The value of a tool often depends to a large extent on the person who uses it... ?Several major achievements of the SB101 high-altitude platform after it was put into useaviation test standards, turbojet 14 engines and turbofan 9 enginesare closely related to Chang Haonan. ?Although there are also slightly modified models such as Turbojet 6D and Turbojet 8M, compared with the previous three, they are obviously not good enough. In this case, Chang Haonan could not say anything else. What''s more, the ceremony has officially begun. At the beginning, there were naturally the routine opening remarks, the playing and singing of the national anthem, and the leaders speech. Fortunately, this conference is expected to have a lot of content. In order to finish it before dinner, these complicated processes were condensed as much as possible, and it soon entered the awards ceremony that everyone was looking forward to. The first one to be awarded is the National Science and Technology Progress Award. There are more than ten or twenty second prizes for each award. If you go up to claim them one by one, it will take a whole day to finish them all. ??And the award-giving leaders will probably die of exhaustion on the stage. Hence, the second prize is announced and put on stage in groups of five. In fact, since the awards are all based on application, and as scientific researchers, everyone has a certain degree of confidence in their research level, so most people can actually guess what award they have won before they come. The suspense is only for a few people. For example, Chang Haonan. In the selection of the National Science and Technology Award, in addition to the technical content of the project itself, the contribution of the results to the country must also be considered. As a result, many projects in the second prize sound a bit similar. For example, the five concentrated in a certain batch are "Selection and application of new early-maturing, high-quality and multi-resistant potato varieties", "Selection and application of new early-maturing, high-quality and high-yielding rice varieties", "Short-stemmed, early-maturing, multi-resistant and high-quality medium-gluten wheat varieties" , New high-yielding, multi-resistant and water-saving wheat varieties In terms of technology, it is basically a reproduction of the same technology on different crops. However, its contribution to increasing agricultural production and ensuring food security is real. In the second prize, Chang Haonans familiar face did not appear. After all, several of the projects he participated in are unlikely to be kicked into the second prize category. The number of places for the first prize will be much less. It can only be between 3-5 items at most. The first two people to take office were, as expected, Yang Fenghao and Yan Zhongcheng. "J-8C Improved Fighter", "Turbojet **** Aviation Engine" Looking at it this way, Lao Yangs academicianship this year must be stable. For Lao Yan... it may take two years, but the problem shouldnt be too big..." Liu Zhenxiang analyzed in a low voice next to Chang Haonan. But soon, he saw bright spots in the list of major finishers. ?Chang Haonans name is ranked first (the first completer is listed separately), and it appears twice... ?Of course, the names of the people in the second list of 14 turbojets have been partially concealed. But as an insider in the industry, Liu Zhenxiang naturally knew that Chang **** must be Chang Haonan. "Xiao Chang, you have a lot of roles this time..." ?Chang Haonan shook his head. Even more... The third first prize is Xu Yangs Water, Thermal Power System and Dynamic Environmental Economic Dispatch Optimization. There are only two main finishers. Herself and Chang Haonan. ?Now, even those who dont know enough about the situation of Turbojet 14 have discovered that the name Chang Haonan appears for the second time. Amid the applause, there were even a few exclamations. On the one hand, its because Xu Yang looks a bit young, and on the other hand There is actually one name that can appear among the main people completing different projects at the same time? Even if he is not the first person to complete it, it is definitely extremely rare. ?However, the shock of everyone has not ended yet. ?After Xu Yang came off the stage with the certificate and trophy, the information about the next winning project appeared on the huge projection screen. ?The host then stepped forward to announce: Differential evolution algorithm for multi-objective continuous variable optimization. The first person to complete the project, Chang Haonan! Generally speaking, after the curtain call ends, there will be applause in the venue. ?However, this time, the first reaction of most people was to be stunned. So much so that there was a moment of silence on the scene. Because the list of finishers on the screen... looks a bit familiar. ??The same two people as in the previous item, but the positions of their names have been switched. In the venue, about half of the people looked at Chang Haonan, who was getting up to take the stage. As for the other half, they looked at Xu Yang, who had just come off the stage and was about to take a seat How are you two playing? (End of this chapter) Chapter 530 They are here to receive the prize, but are you here to purchase goods? Chapter 530: They are here to receive the prize, are you here to purchase goods? It wasn''t until Chang Haonan walked up, shook hands with the host, and walked to the middle of the stage that everyone finally came to their senses. The flood of applause was late, but fortunately it was not absent. After all, there are many experts in the field of industrial control sitting below, and they have no objection to the value of this achievement itself. Chang Haonans improvement of the DE algorithm can almost be said to have brought the field of multi-objective optimization into a new era. In fact, the core technology used in the power grid project that just won the third first prize is the differential evolution algorithm. This kind of algorithmic achievements used to tend to be classified into the Natural Science Award rather than the Science and Technology Progress Award. Logically speaking, if the algorithm itself wins the first prize, then the results achieved by using the algorithm as a tool should generally not be included in the same series of awards at the same level. However, the situation this time is indeed a bit special. ??When two people are singing duet on stage, it is naturally not the turn of others to make any comments... ?Of course, some people have some thoughts about Chang Haonan''s appearance, which looks even younger than Xu Yang just now, and feel that he is a bit too young. When judging awards, in addition to looking at level, qualifications must also be considered. ?However, the people who can sit in this venue may have evil intentions and may be weak-minded, but in short they cannot be fools. Even if you have some ideas, after seeing that many experts in the field of control science and computer algorithms showed no abnormalities, you should be able to feel that this award-winning project is not easy to defeat... Furthermore, considering that in Yang Fenghaos previous project, the second person to complete the project was also Chang Haonan, which obviously shows that this persons network of relationships is intricate. Furthermore, this is already the fourth first prize. Even if one of them is cancelled, there will be no second prize to replace it. In short, there is no need to cause trouble. ?Chang Haonan received the trophy and certificate from the award leader, and then, as usual, he held it up and showed it to the scene. The acceptance speech stage was not very exciting. The main reason is that the time is too short, the longest cannot exceed three minutes. ?Chang Haonan walked slowly behind the podium, pointed at the microphone, and then thought for about two seconds. Because he has dealt with too many systems and units, he needs to analyze who should be thanked specifically for this project... "I would like to thank the National Science and Technology Award Selection Committee for awarding this honor to me. In addition, I would like to thank my alma mater, Beijing University of Aeronautics and Astronautics, and my mentor, Academician Du Yishan, for their training in me, as well as the Institute of Computing Technology of the Chinese Academy of Sciences. The future was not clear at that time. Under such circumstances, valuable supercomputing resources are provided..." ?According to the general speech template, after saying thank you, it is natural to express your stance: This award is not only an affirmation of my past work, but also an incentive for my future work. I will not forget my original intention, redouble my efforts, and continue to work **** the road of scientific research... Thank you everyone! Originally, this occasion is not for you to give an academic report. So the speech is not long. ?However, it represents the voice of a new generation of scientific researchers. In the auditorium, applause resounded throughout the audience again. ?Chang Haonan bowed slightly to the audience, and then walked off the stage from the other side with the certificate and trophy. After the applause died down, the host spoke again: Dear guests, the list of winners of the National Science and Technology Progress Award is still not over. With the approval of the Awards Committee, the International Science and Technology Committee and the relevant leading departments of the State Council, it was decided to award a special prize of the National Science and Technology Progress Award in 1997. As the host finished speaking, Chang Haonan, who had just taken his seat, felt Liu Zhenxiang tremble next to him. He even clenched his fists slightly and glanced towards him unconsciously. Obviously, his heart is not as plain as it seems. Others at the scene were holding their breath, waiting for the announcement of the special prize. ?After filling the scene with suspense and atmosphere, the host finally waved his arm to signal the staff behind him to switch the projection content. The winner of the special prize of the 1997 National Science and Technology Progress Award is the Gas Turbine Research Institute and the large-scale high-altitude simulation test bed of aero-engines! The first person to complete the project, Liu Zhenxiang! ??The moment he heard his name, Liu Zhenxiang, who was already in his sixties, perked up. He waved his fist forward like a child, then stood up and greeted the crowd at the scene. ?However, he did not go out to receive the award immediately. Instead, he shook hands with Chang Haonan, who was sitting next to him and had just put away the trophy and certificate, and patted the latter''s shoulder. At this time, Chang Haonan''s status in the circle was even more confirmed. ??Just now when he gave his acceptance speech, he said that his mentor is Academician Du Yishan. ? And now, it is obvious that he has a close relationship with Academician Liu Zhenxiang... Can you afford to offend this? Even those who had some ideas before have forgotten them now. The special prize also comes with a trophy and a certificate, but the certificate is significantly larger than the first and second prizes. Liu Zhenxiang hugged it to his chest and even slightly blocked his chin. But it couldn''t stop his smiling face. For Liu Zhenxiang, who has already been elected as an academician, this award actually has no use in terms of utilitarianism. But it is recognition of him, 624 Institute, and the entire high-altitude platform project team. ?Liu Zhenxiang went into the mountains and worked hard for more than ten years to build the high-altitude platform. Naturally, his core pursuit cannot be to gain fame and reputation. But when an honor commensurate with the efforts falls on you, it would be absolutely false to say that you are not excited. When he raised the trophy to the audience, the spotlight in front of the stage inadvertently reflected the tears shining in the corners of his eyes... The conference affairs did not set a time limit for Liu Zhenxiangs acceptance speech. So he talked for a long time and had a lot of content. From the beginning of drilling into ravines in the 1980s, to the belt-tightening of the military industry at the turn of the 1980s and 1990s, to the first light of dawn, and then to the results after the high-altitude platform was put into use. Even though a lot of content that is not convenient for public disclosure has been concealed, Liu Zhenxiangs speech has still become a microcosm of the fate of military workers and even all Chinese researchers since the 1980s. At the end of the story, not only him, but also many people below shed tears. Liu Zhenxiang also specifically mentioned Chang Haonan. ?Of course, he did not explain the relationship between the latter and the new national military standard, but only expressed his gratitude for his contribution to the application of high-altitude platforms The revision of the national military standard involves the struggle for dominance in the development of China''s aviation industry. The involvement is too wide. Therefore, the Commission of Science, Technology and Industry for National Defense has always been led by Liu Zhenxiang and did not expose Chang Haonan prematurely. Generally speaking, the Science and Technology Progress Award is the most awarded, and therefore the one that attracts the most attention among the three awards (the International Cooperation Award is not awarded together). Hence, Liu Zhenxiangs acceptance of the award should basically be regarded as the climax of the entire ceremony. The following technical invention awards and natural science awards are generally awarded very quickly. Including the acquaintances Chang Haonan met before the meeting, most of them also received the Science and Technology Progress Award. For Chang Haonan, being able to take home a first prize is considered satisfying. After all, the two king bombs in his hand, the turbofan 10 and the heavy die forging press, have not yet produced results. There are still opportunities to get them later. So, after Liu Zhenxiang received the award, he felt completely relaxed. ? And because I didnt get much rest this whole day, I even started to feel drowsy very quickly. However, things developed beyond his expectation. ?Just when Chang Haonan was trying to fight off sleepiness, he suddenly heard his name again. 1997 National Technological Invention Award Special Prize In fact, when the award was read out by the host, there was already a small commotion at the scene. Is there a special prize for the Technical Invention Award? Yeah, I thought it was only for the Science and Technology Progress Award Is it newly established this time? Soon, someone with more seniority explained: Yes, in 1981, Mr. Yuans indica hybrid rice won the Special Prize for Technical Invention, but after that, it should not have been awarded again..." Wouldnt it be that it has been vacant for fifteen or sixteen years? We originally thought that this special prize was a customized award for hybrid rice, and we stopped giving it out after it was given out. But we didnt expect it to be given out again this year..." I just dont know which project can have such a big impact At this time, the host has also revealed the suspense Portable modular flood control reinforcement kit Xi soil, winner, Chang Haonan! The whole house was in an uproar! ?Chang Haonan himself was suddenly awakened from his half-dream. ?Those who knew Chang Haonan almost all subconsciously looked at where he was sitting. ?Even several leaders who were responsible for taking turns to present awards on stage, and even some members of the awards committee, all showed expressions of confusion or shock. ? ?The selections for different categories of awards are conducted separately, especially the selection committee of the Science and Technology Progress Award. They had no idea that Chang Haonan had been awarded a special prize for the Technology Invention Award next door. ?In turn, the Technical Invention Award Judging Committee only found out that Chang Haonan won the first prize when the awards were just handed out... ??Only the host who had rehearsed in advance, and a few people such as Song Jian who had known the inside story for a long time, looked normal. It is an unprecedented feat for the same person to win twice in the same selection. Whats more, one of them is a special prize for technical invention that has not been awarded for more than ten years... However, anyone with a discerning eye can see that the flood protection reinforcement kit is definitely related to last years major floods. Those who know a little bit about the inside story will surmise that this should be the kind of new equipment that can turn the world around at the two key points of Xunyang and Jiangling. ? Considering the selection process for the Grand Prize, this is probably an instruction directly from the top... ?Chang Haonan has just finished his confusion and is ready to go on stage again to receive the award. The people in the audience were thinking further. ?More than half of the eyes in the venue were focused on the last series of awards, which is the director of the selection committee of the Natural Science Award. ?The meaning is obvious. You wont give him an award, right? Originally, everyone just thought about it casually. ?However, the person being stared at was already sweating on his forehead. ?Seeing that the situation at the scene had changed, Song Jian simply asked the host to tell the following content directly. I can only say that he is a live host hired from CCTV, and his professionalism is not at all high. Faced with this complete deviation, it only took a few seconds to find the one he needed from a pile of cards in his hand, and then stood at the front of the stage again, facing Chang Haonan who had just recovered. : Comrade Chang Haonan, I have another piece of good news to tell you. As the first person to complete the project, he won the first prize of the National Natural Science Award... The winning project is Prediction and Prevention of Severe Weather Conditions Affecting Aviation Safety! When he said this sentence, even the host, who had rehearsed several times and already knew the plot, was a little numb. Even if he is not a scientific researcher, he can feel that the young man in front of him who is younger than himself seems a bit too outrageous. As for the other people in the audience... It''s even more numb. Everyone is here to receive awards today. And Chang Haonan. But it seems like Im here to purchase goods (End of this chapter) Chapter 531 Our work is beneficial to the people Chapter 531 Our work is beneficial to the people One special prize and two first prizes. Even since the Science and Technology Awards began in 1979, Chang Haonan is definitely the biggest winner in a single award. or In fact, the restriction of "single award" should also be removed. Three projects, all completed by the first person. Generally speaking, to be able to participate in award-winning projects of this level, it would be good for a person to host one or two in his lifetime. ?Furthermore, even if you still have the energy to host the third one, by this time, you have basically established a sect. In this case, most people will choose to give up the position of the main completer to their direct disciples. From the perspective of a bowl of water being equal, the selection committee usually tends to award the award to new faces. ?Who would have thought that such an outrageous person would accomplish such an outrageous thing in his twenties? You should know that the National Science and Technology Awards are selected every year. These three projects were all awarded awards in 1997, which obviously shows that they were carried out almost at the same time. At the same time, both are hosting projects In this regard, everyone can only say - Please be a human being... Comparatively, the positions of the two second-place finishers at the beginning were not that exaggerated. After all, for those who dont know the inside story, the project Prediction and Prevention of Severe Weather Conditions Affecting Aviation Safety seems to be a logical explanation for Chang Haonans position in the J-8C project. The differential evolution algorithm can be seamlessly connected with the power grid optimization project. It seems that while Chang Haonan was working on these three major projects, he also had a major impact on the other two projects. ??In addition, this guy has a lot of connections, everyone has to give him three points, and it is normal to put him in the second place among the finishers... ?In addition, everyone now finally understands why the results of the previous differential evolution algorithm were included in the ranks of the Science and Technology Progress Award. Because others have done projects that are more suitable for applying for the Natural Science Award... ? Putting it into a normal script, Chang Haonan''s image in the minds of most people at this time should have moved towards the perspective of a super university boss. But his image makes it difficult for people to associate him with Xueba. In fact, not to mention the audience, even Chang Haonan himself on the stage was a little confused. During the two days of preparation, he had dreamed of winning two awards at the same time. But I never took it seriously, I just thought about it casually. As a result, the reality turned out to be more exaggerated than what he casually imagined... Chang Haonan took over the two trophies and certificates with a somewhat confused expression, so he was a little confused for a while and didn''t know how to show it to the audience. ?Of course, he has become the absolute protagonist tonight, and there is no need to do such unnecessary actions. Following that is the acceptance speech According to Liu Zhenxiangs experience just now, there is no time limit for the speeches of the special prize winners. But what needs to be said has just been said... Chang Haonan had no choice but to turn his head, which was a little dizzy from the huge surprise, and organize his words quickly. ?Although these three projects are all publicly available, if the prediction of severe climate conditions is carried out, it will inevitably involve cooperation with China and the European Union. Even Chang Haonan himself is a little unsure about what can and cannot be discussed in this part. Comparatively, the flood control kit is more topical and story-telling. "Once again, I would like to thank the National Science and Technology Award Review Committee for recognizing the project I am leading. This is not just me personally, but also the result of the joint efforts of all the comrades involved in the project..." ? ? ? "For me, it is also a great honor to be a As scientific researchers, they participate in the battle of emergency rescue and disaster relief, and to protect the safety of people''s lives and property..." Our performance in the face of natural disasters once again proves that science and technology are the primary productive forces, but at the same time, we must not forget those frontline comrades who face the floods with their flesh and blood..." "In the process of collecting feedback on the use of ''Xirang'' equipment from all over the country, I saw many, many similar stories. In Xunyang, there was a regiment leader surnamed Wang who led the entire regiment and commanders above the company to persevere in the flood. For two days and two nights, in Gangneung, young soldiers held sandbags and dived underwater to seal the breach more than a dozen times a day..." "The words in these reports make me truly feel that our work is beneficial to the people..." Compared with the previous acceptance speech that expressed gratitude in a parallel way, this section is much richer in content because there is no time limit. At the beginning, Chang Haonan really wanted to delay for some time and get off the stage immediately after speaking. ?But when he actually started to talk about the incidents he had seen from flood rescue reports from various places, his emotions gradually came into place. So, this lecture lasted nearly 15 minutes. As a speech for such an award ceremony, it is indeed a bit ridiculously long. ? Its just that no one from the audience, the host, or even the staff backstage expressed any impatience. ?Although Chang Haonan''s tone is very high, it is not difficult to distinguish between empty talk and true feelings. Finally, thank you all, and I wish all comrades on the scientific research front to integrate their results into the land, sea and sky of the motherland! After Chang Haonan finished speaking, the audience burst into applause. Enduring. In fact, he only completed one acceptance speech. The results of aviation weather forecasting are intentionally omitted. ?However, at this time, no one paid attention to this. ?From a technical point of view, the Xi soil flood control kit does not seem to have any particularly earth-shattering breakthroughs. It is not easy to convince the public that such a patent can win a special prize for technical invention that has not been issued for more than ten years. ? Even if no one dares to express their fear of the special prize selection rules, they will always have their thoughts in mind. However, Chang Haonans speech just now has become, to some extent, the best annotation for this award. ?Before leaving the stage, the host specially brought a bag from the backcourt. Chang Haonan won three sets of trophies and certificates this year, including a particularly large set of special prizes. So, such a thing is indeed needed... ?In addition, this scene also caused a burst of laughter in the venue that was originally too serious and serious because he had raised the atmosphere ??The trophies and certificates were packed and taken away, and now people really came here to purchase goods... Xiao Chang, what you said just now is quite good. After sitting down, Liu Zhenxiang took the lead in expressing his affirmative attitude: Especially the last sentence, I estimate that after today, it will directly become a propaganda model... ?But then, he changed the topic again: Tell me the truth, have you ever made any special preparations before? Chang Haonan was lowering his head to pack up the goods he had purchased this time. When he heard this question, he quickly shook his head: I really dont know. I even attended this award ceremony only after Director Ding called me back two days ago and told me. Originally, I was still in Shengjing... This time, Liu Zhenxiang stared at Chang Haonan for a long time: "To be honest, your kid''s position in these few times is higher than that of several old guys I know." Originally, Lao Du and I were worried that your position and reputation would rise too quickly and you would inevitably suffer some losses in non-technical aspects. But now it seems that we are far behind you in this aspect (End of this chapter) Chapter 532 Three prizes for one person! Chapter 532 Three prizes for one person! Chang Haonan''s three-prize award and his heartfelt acceptance speech directly aroused the emotions of everyone present to the highest point. Considering that everyone originally thought that the climax of the evening should be Liu Zhenxiangs special prize for scientific and technological progress, this was already equivalent to the second emotional peak. It is equivalent to a bit of overdraft. ??Moreover, the ceremony that lasted the whole afternoon was coming to an end. So, when it came to the last part of the Natural Science Award presentation, although the host was still doing his best to arouse the atmosphere at the scene, not to mention other people, even the winners themselves were not that high in interest. ??The only surprise may be that the project "Symplectic Geometry Algorithm for Hamiltonian Systems", also a project of the Institute of Computing Technology of the Chinese Academy of Sciences, also won the first prize of the Natural Science Award. In this way, the Institute of Computing Technology of the Academy of Sciences has made a lot of money this time. Even though Chang Haonan won three awards alone, the applicants for these three awards were Beijing Hangzhou University/Institute of Computing Technology of the Chinese Academy of Sciences (Differential Evolution Algorithm), Torch Group under the Chinese Academy of Sciences (Modular Flood Control Equipment), and Beijing University of Science and Technology. Aviation University/China Aviation Industry Corporation (Prediction and Prevention of Severe Weather Conditions). Equivalent to getting half of it. Therefore, in this selection alone, the Institute of Computing Technology won two and a half first prizes, and a less eye-catching project "New Progress in Machine Proving Theory and Algorithm of Geometric Theorems" won the second prize. Among all units, he is definitely the best. ?However, it is a pity that Academician Feng Kang, the first person to complete the "Hamiltonian system''s symplectic geometry algorithm" project, passed away as early as 1993, and Academician Li Jie, who has been promoted to the director of the Institute of Computing Technology, can only accept the award on his behalf. It can be regarded as leaving some regrets. Academician Feng Kang was transferred to the Institute of Computing Technology in 1957 and can be said to be the founder of Chinese computational mathematics. ?His achievement "Difference scheme based on variational principle" created the finite element method independently of the West and is equivalent to Chang Haonan''s direct predecessor. ?It''s a pity that the latter came back a little too late, so he didn''t get the chance to meet this legendary master. Since Chang Haonan had already received the first prize in natural science before, after Li Jie received the award and delivered his acceptance speech, the entire award ceremony came to an end. ?Of course, with so many big names in academia working together, its impossible to just accept the award and then leave them alone. The dinner party is still indispensable. Under the guidance of the venue staff, everyone left the conference hall one after another and moved to the banquet hall on the second floor. ?However, after all, the technical staff are not soldiers with orders and prohibitions, and the field management has no coercive force, so in general, the flow of people is still moving in small groups. And such a group of people quickly gathered around Chang Haonan. ?Of course, they are all more or less familiar with Chang Haonan. After this afternoon, Chang Haonan will definitely become a hot new star in the academic world. But if you really dont know someone at all and dont have anyone to recommend you, its still more embarrassing to post it. You actually applied for so many projects at the same time, and you were all rated... ? Xu Yang is probably the one who is closest in age to Chang Haonan in the entire venue, so getting along with them is naturally more natural. This I didnt think of it before. I thought it would be good to comment on one ?Chang Haonan was holding the inconspicuous cloth bag in his hand. ??If it weren''t for the faint "ding-dong-dang" sound that came from his walking movements, then no one would have been able to guess that there were three certificates and trophies symbolizing the highest honors in the Chinese scientific research community. What he said was indeed true. It wasnt until he returned to his seat after receiving the award for the second time that Chang Haonan came back to his senses. ?According to the Science and Technology Award rules mentioned by Liu Zhenxiang before, the selection of special prizes requires additional nominations and then reported to the competent ministries and commissions, as well as higher-level leaders for approval. Hence, the special prize for technical invention won by the Xiliang Flood Control Kit must have come from above. It is the result of converting the honors earned in the process of flood fighting and rescue operations. After all, although this thing has indeed turned the tide in many places, it is still less interesting than the hybrid rice that won the same award fifteen years ago... Excluding external factors, Chang Haonan himself felt that he would be able to win the first prize... As for the other two, it should be entirely due to the fact that the selection committees of the three awards did not communicate with each other, and they did not expect that one person would be in the same position. Submit several award projects every year... Of course, the selection results will eventually be brought to the hands of the leader of the Science and Technology Committee, namely Song Jian. But the above has made it clear that Chang Haonans contribution will be rewarded. Moreover, Chang Haonans Torch Group is a company under his Science and Technology Committee, so there is no reason to obstruct it. In short, his solid contributions, coupled with many chances and coincidences, have made Chang Haonan the legend of being a **** with three awards for one person today. While talking and chatting, people started to flow upstairs and entered the banquet hall. For a formal banquet of this level, the traditional Chinese meal must still be served. In short, it is necessary to divide the table. Generally, positions are allocated according to the participants unit and award level. ?However, Chang Haonan won the award for four units by himself, which was indeed unprecedented, so in the end he had to be assigned to one of the tables of the Chinese Academy of Sciences and the National Science and Technology Commission according to the Torch Group. Just sitting next to Li Jie. Comrade Haonan, congratulations to you. After sitting down, Li Jie took the initiative to shake hands with Chang Haonan: Being able to win these three awards at the same time in one selection, even in the future history of Chinas scientific and technological development, your contribution will be indispensable... Although the two of them dont meet many times, they actually have a close relationship. After all, at least two-thirds of Torch Group''s technical staff are poached from computing laboratories, or are people who hold two jobs. Academician Li has gained quite a lot this time. The Institute of Computing Technology should have received the most awards among all units. ?Chang Haonan put the cloth bag next to his seat and began to chat with Li Jie. At this time, it was still some time before the dinner officially started. Therefore, many people did not sit still and wait after finding their seats. ??Whether its for liaisons or academic exchanges, in short, if such a big occasion is just for eating and drinking, it will be a loss to grandmas house. Mr. Chang. ??Just when Chang Haonan and Li Jie were chatting about the relationship between the Future Computing Institute and Dream Group, a somewhat familiar female voice sounded from the side and behind. The former turned around, and after being stunned for a moment, he quickly recognized the other party''s identity. Zhu Lan, professor at Jincheng University. ??When Chang Haonan developed the ice growth prediction model and aircraft anti-icing system, she and her husband Lin Guofan also played an important role in it. Including Chang Haonan''s husband and wife in the list of main finishers of the first-class natural science project. Professor Zhu? Long time no see, hello, hello. ?Chang Haonan stood up and shook hands with Zhu Lan. ? He ??did not remember what award the latter had just received, but considering that he had been drowsy during the first half of the Technology Invention Award presentation, he speculated that Professor Zhu should have received a first- or second-class Technology Invention Award. Congratulations to Mr. Chang for winning three awards in a row today. When I worked with Nanzheng before, I felt that your ability was extraordinary Zhu Lant came here unexpectedly, obviously not just for a simple chat. So, after some compliments and exchanges of politeness, she quickly got down to business: "Mr. Chang, our Jincheng University is also one of the first trial users of TORCH Multiphysics software. During this period, we have also tried to use new numerical calculation methods to solve many practical problems. My husband now has an idea and would like to hear your opinion. " The "my husband" Zhu Lan refers to naturally refers to Lin Guofan. Can the numerical calculation method of TORCMultiphysics software be introduced to problems of very large physical scales and time scales, such as...geological research? (End of this chapter) Chapter 533 Madam, you dont want it either Chapter 533 Madam, you dont want to either Geological question? This is completely a blind spot in Chang Haonans knowledge. Although all engineering problems can ultimately return to physical problems and then be reduced to mathematical problems. But this does not mean that mathematicians can solve all engineering problems in one step. Even a master like Chang Haonan, who is rich in theoretical knowledge and engineering experience, must first learn basic knowledge when faced with problems he does not understand. Or let people analyze the essence of the problem. So he thought for a moment and asked: Can you be more specific? What type of geological problem is it? At least I have to be clear about the research object. "Wait a moment" Zhu Lan said as he fumbled around in his jacket pocket for a while and took out a small notebook. This is, after all, Lin Guofans problem, not her professional direction. "The research project is...''Vibration response and cumulative permanent deformation of permafrost sites under the load of heavy-duty trains''. The research objects include various undesirable frozen soil phenomena including instability of the water and heat balance conditions of permafrost, changes in the upper limit of frozen soil, etc." The high temperature and extremely unstable permafrost area..." Reasonable. Chang Haonan is nodding his head when he hears the name of this kind of project. It is impossible for Zhu Lan, who is not a professional, to remember it without a notebook. ?However, the key point is not difficult to get. Permafrost, train. The two keywords put together may not mean anything to people of this era, but for Chang Haonan who has returned from rebirth, it is not difficult to guess where this project is aimed. ?Of course, having said that, you still have to be sure, otherwise it will be like jumping to the top. Are you planning to build a railway in XZ? ?Zhu Lan shook his head: This is what my old Lin told me last night when he called me. Because it was an outside call, I didnt mention anything in detail. Then lets take it as such for now. Chang Haonan already had an estimate in his mind. He just asked casually. No matter how Zhu Lan answered, he would definitely continue: From a theoretical perspective, this problem is probably a composite problem of the temperature field, the stress field inside the frozen soil layer, and the pressure field of external dynamic loads. Because these three fields are basically completely independent, the numerical solution of the strongly nonlinear partial differential equations will eventually be implemented, which is exactly what the TORCMultiphysics software is good at, although the calculation process will be more troublesome. Hearing Chang Haonans judgment, Zhu Lans eyes lit up: In other words... it should be feasible? It cannot be said that it is directly feasible. Chang Haonan lowered his head and organized his words: There are no obstacles at the solution level of the core set of partial differential equations, but at the operational level, if a railway is really thousands of kilometers long, even if only part of the permafrost layer is studied, there will be at least a research scope of hundreds of kilometers. Then it is impossible to solve it as a closed domain problem like a general problem. "Whether it is the finite element method or the finite volume method that is commonly used at present, if you calculate an open domain problem, you must impose truncation boundary conditions. You can consider constructing an interpolation shape function in the local coordinate system, such as Bettess element and Astley element, or directly in Construct interpolation shape functions in the global coordinate system, such as Burnett elements..." At this point, Chang Haonan felt that these proper nouns might be a bit unfamiliar, so he changed the subject and asked: Do you need me to write these functions for you? But Zhu Lan shook his head: No need, I study surface physics. I have some understanding of what you mentioned. It should be regarded as the infinite element method... Surface physics Hearing this, Chang Haonan suddenly became energetic: Professor Zhu, our company is currently studying the dynamic model of microscopic particles on the surface of metal materials during the grinding process. I wonder if you are interested in participating? Originally, Chang Haonan should have finished talking about the current matter before starting the next topic. However, high-precision abrasive belt grinding will have a great impact on the production efficiency and yield rate of turbofan 10 after it enters mass production in the future. It is one of the core technologies in the third-generation aviation production process. After all, Chang Haonan himself is not an expert in this field. If he really has to learn it all by himself, it will take some time. The most lacking thing in the Turbofan 10 project is time. Even if the finalization cannot be completed, Chang Haonan still hopes to advance the engine to a state of sufficiently high stability before October 1999. Let third-generation fighter jets equipped with domestic engines, even prototypes, participate in the military parade! ??Now Zhu Lan''s level is definitely high enough and reliable enough. If he can be brought over to lead the project, it will not only advance the research progress, but also be equivalent to finding a teacher for Chang Haonan himself. ??No matter how you look at it, you are killing two birds with one stone. So I asked immediately. ??And this question that turned against guests directly stunned Zhu Lan. Chang Haonan saw that the other party was worried about the distance between Jincheng and Beijing, so he continued: "As for the salary issue, you can rest assured that all your expenses in Beijing and the round-trip air tickets from Jincheng to Beijing will be taken care of by us, and we can also give you an additional subsidy based on the basic salary standard of a senior researcher in our group. " ??Torch Group is a state-owned enterprise, and the company''s money is not Chang Haonan''s own money anyway. In addition, there are only a small number of people in the company, so he basically doesn''t hesitate at all in offering benefits. In this era, the treatment of scientific researchers is generally relatively average. ?Especially for research institutions in relatively remote locations like Jincheng University. Even if Lin Guofan and Zhu Lan are both full senior professors, their lives can only be described as average. Facts have proven that adding money is indeed effective. "I have to discuss this matter with our Lao Lin, but...it shouldn''t be a big problem." ?Zhu Lan thought for a moment, and although he did not give a direct answer, his tone and expression were basically stable. Thats good, our group is in urgent need of reliable fresh blood, and we really need talents like Professor Zhu to join us. ?Chang Haonan''s on-site poaching not only made Zhu Lan a little confused, but also almost confused the other people at the same table. ?However, colleges and universities do not restrict faculty members from taking part-time jobs outside the school, so speaking of it, there is no problem. After a small interlude, Zhu Lan and Chang Haonan remembered the topic they had just talked about halfway. By the way, the infinite element method I just mentioned... ?Zhu Lan picked up the pen again, preparing to record what Chang Haonan said next. But the latter waved his hand directly: "Since you understand the idea of ??the infinite element method, there is nothing more to say. We cannot immediately upgrade to a new version for this less commonly used method, but we can develop an external toolkit for the infinite element method through the reserved interface. " Just think of it as part of the cooperation with Professor Zhu to join our research project. ?Chang Haonan said this, obviously continuing to increase the requirements just now ?Ms. Zhu, you dont want your husbands research project to be without useful tools, right? Ahem Zhu Lan, who was opposite, had no objection to this. After all, apart from the need for a long business trip, she would at least not suffer any loss. Then on behalf of my husband, I would like to thank Mr. Chang in advance for his help. Zhu Lan said as he put the pen and notebook into his pocket. The dinner was almost about to begin. She wanted to say goodbye and leave, but something suddenly occurred to her: By the way, Mr. Chang, what is the name of your project? This needs to be reported to our school. Study on the microscopic mechanism of the material surface removed during abrasive belt grinding. (End of this chapter) Chapter 534 The semiconductor industry chain must be started from scratch Chapter 534 The semiconductor industry chain must be started from the beginning ??Today''s dinner party is a good occasion for socializing, but there are many people and there is not much time to talk about too many things in detail. ?Besides, even if it was just a formality, Zhu Lan had to ask Lin Guofan for his opinion. Don''t say that Chang Haonan is just cooperating with others, the relationship between the two parties is equal. Even if the superior unit wants to transfer work, except for a few special circumstances, it must first seek the consent of the family members. Therefore, after initially confirming the intention to cooperate, the more specific content must be discussed later. ?After Zhu Lan and Chang Haonan said goodbye and left, Li Jie, who was sitting next to him, looked at the former''s back and asked with some surprise: Comrade Xiao Chang still has such familiar colleagues in the northwest? Those invited to attend today''s award ceremony all wear badges with their names and workplaces written on them. After the ceremony, most people didn''t have time to pick them up and were taken directly to the banquet hall on the second floor. That''s why Li Jie could directly tell that Zhu Lan was from Jincheng University in the northwest. Ah, we met when we were doing aviation meteorological research in Nanzheng. Professor Zhu and his husband, Professor Lin Guofan, made a lot of efforts at that time. Of course Chang Haonan has nothing to hide in these contents. ?Li Jie paused for a moment, and then said as if talking to himself: If we really want to build the Qinghai-Tibet Railway, Jincheng University should indeed contribute more..." Chang Haonan certainly knows that this railway must be built, but at this time, he still has to pretend: Does the country really have plans to build railways in snowy areas? Li Jie nodded: "It has been around for a long time. The Xining to Golmud section started construction in the 1950s, but it took almost 30 years to complete and open to traffic. At that time, it was felt that further repairs were too technically difficult and not feasible, so it was temporarily shelved. " After briefly explaining the situation to Chang Haonan, he changed the subject and asked the latter: What you just said is that you can use numerical calculation methods to analyze the situation after dynamic loads are applied to the roadbed in the frozen soil area. Are you really sure it can be done? At least from my professional point of view, its no problem. The extended toolkit for the infinite element method will not take long to be developed. Chang Haonan gave an affirmative answer almost without thinking: Of course, any numerical calculation that is applied to specific engineering problems requires corresponding data support, and it is impossible to calculate in a vacuum. "So there are related characteristics of frozen soil, such as convection, mass migration, water evaporation heat consumption, heat conduction between soil skeleton and other media, ice-water phase change, and of course other characteristic data that geological experts know but I don''t know. It is still necessary to conduct research and analysis on the actual situation along the route..." As a researcher in the field of numerical computing, Li Jie certainly knows that what Chang Haonan said later is a supplementary explanation out of rigor. So he directly condensed the entire answer into one word able. If this is the case, then we at Shuguang Group should make preparations in advance... ??In addition to being the new director of the Institute of Computing Technology, Li Jie is also the chairman and general manager of Shuguang Group. ??Due to the butterfly effect set off by Chang Haonan, the situation of the Institute of Computing and Shuguang Group is much better than in the previous life, at least they have not been reversely annexed by the Dream Group, which has now independently operated. However, as an asset-heavy R&D company, the latter needs to work harder to maintain a balance of payments. Chang Haonan is certainly aware of this situation. So when Li Jie said this, he also became interested: Speaking of this, Academician Li, I wonder how the development progress of Dawn 2000 is going? The current computing speed of Dawning 1000 and Dawning 1000A can no longer keep up with our needs. Facing Chang Haonans strong reminder, Li Jie briefly calculated the current timetable, and then replied: If nothing else happens, Sugon 2000-1 will be put into use in the second half of this year. Based on some experience of previous Sugon 1000A feedback, the computing speed of the new model can be increased by about an order of magnitude. What Im thinking about now is whether we should design a suitable supercomputer for very large projects like the Qinghai-Tibet Railway in advance, so that when the project is actually approved, even if the performance of our product is slightly inferior, we dont have to wait for it to be in stock. After all, it can still account for some usage share..." Computer hardware is actually similar to software. We are not afraid of falling behind temporarily, but we are afraid that there will be no market. ?Without a market, there will be no feedback, and it will not be able to bring about an entire industrial chain. ??And the wave of supercomputing craze that Chang Haonan set off last year can be regarded as solving the urgent need of Sugon Group. Otherwise, the capital chain may become unstoppable. But just relying on a few universities, and they are all orders from second- and third-rate universities with poor conditions, is definitely not an option in the long run. The Dawn series of supercomputers still need to prove themselves on a larger stage. ??However, if we really want to surpass foreign countries, especially our counterparts in the United States and Japan, in hard indicators, it is obviously not something that can be achieved within one or two years. That''s why Li Jie thought of taking some sideways paths. I have to say that this idea was indeed something Chang Haonan had never thought of before. ??But after hearing Li Jies idea, Chang Haonans mind suddenly came to a more unrestrained idea: Academician Li, I think we should do it more simply. "Can Sugon Group cooperate with our Torch Group to optimize a supercomputer specifically for TORC Multiphysics numerical calculation software, for example... it can be called Shuguang 2000T, and it can be specially provided for use in very large projects like the Qinghai-Tibet Railway. Anyway, they are dedicated to special planes. , you dont have to care about compatibility at all He doesnt know much about the computer hardware field. But judging from past experience, it should be feasible for computers to optimize specific types of applications from the hardware, or at least the underlying driver software level. For example, using N card for mining is better than using A card... ?At this moment, it was Li Jies turn to shine: You meanbundled sales Nodont say it so harshly Chang Haonan quickly waved his hands to deny: Can we call it a joint model... "Forced buying and selling is definitely not good, but we can add some exclusive functions of the Sugon 2000T co-branded model to the professional version of the software for the public. After unlocking it, it is equivalent to purchasing half of the professional upgrade model, and then we recommend that customers choose Sugon. The groups products Of course, part of the profits from this joint model must be shared with our Torch Group... Chang Haonan''s gameplay is somewhat similar to a certain platform exclusive in the gaming industry, or at least a first-release exclusive. It is a very common marketing strategy in later generations. ?However, in China in the late 1990s, it was obviously still relatively new, which at least made Li Jie feel a little brain-burning for a while. After a while, he came back to his senses: If you want to do this, it will not only be a system and architecture problem, but also the core hardware, such as the chip level, must be modified accordingly..." Of course it needs to be changed. For Chang Haonan, who returned from time travel nearly twenty years later, "making independent chips" is almost an instinctive idea. So, he continued to explain: If our supercomputing, and even the entire semiconductor industry, wants to develop, we cannot always rely on finished hardware provided by foreign countries. One day we must rely on ourselves. Since such a day will come, its better to prepare early. Its not that we need to get it right in one step. We can start with the design first. At worst, well have to hire someone else for production. Supercomputing chips are not consumer-grade products and are relatively less sensitive. In short, we not only want to revitalize Shuguang Group, but also lift up the upstream industrial chain bit by bit, at least not letting people fall further and further behind. "Right now, the international environment is relatively not that tense, and there is still the possibility of obtaining some technology and collaboration from abroad. If we don''t take advantage of this opportunity to start pursuing it quickly, if the situation changes in the future and we want to break through, it will be very difficult. Too much Clear and logical. ?Li Jie took a deep breath, stared at Chang Haonan for a while, and then nodded: Okay, Ill make arrangements when I get back. (End of this chapter) Chapter 535 forwarding satellite positioning interference Chapter 535 Transponder Satellite Positioning Interference ?Compared with the previous cooperations, the process of the dinner seemed a bit dull. ?Of course, this plainness is for Chang Haonan. A large portion of the people invited to attend the National Technology Awards are young scientists in the traditional sense. That is, researchers between 30-45 years old. Not everyone can be like Chang Haonan, who has been through many battles in his early twenties and has seen a lot. So overall, the atmosphere is quite warm. After everything settled, Xu Yang refused to join his colleagues from the Computing Institute, but said that he planned to go directly back to the Computing Center of Beijing Hang University, which is the current actual office location of Torch Group. Naturally, I got into Chang Haonan''s car. In fact, during the dinner just now, Chang Haonan found that the other party wanted to say something to him several times, but he hesitated. Sure enough, after the car took the two to the computing center, Xu Yang followed Chang Haonan directly upstairs and entered the office: I wanted to contact you a few days ago, but I couldnt explain it in detail on my phone. I have basically researched the trajectory deception algorithm of the GPS positioning system. I have tested it on civilian GPS receivers several times and the results are good. However, there are still some problems in terms of hardware implementation. One sentence immediately cheered up Chang Haonan, who was already a little tired: Tell me more specifically? Of course he knew that since the effect of the electronic jamming pod was verified, the other party''s research interest has shifted to jamming, or in other words, deceiving the satellite positioning system. And has been researching in this direction for almost half a year. ? ? If it can produce results, it will be equivalent to creating extremely high resistance to equipment such as precision-guided weapons and autonomous driving systems that rely on satellite guidance. In the "new three attacks and three defenses", this technology can solve the two problems of "attacking cruise missiles" and "preventing precision guidance" at one time. At least for some time to come. Of course, the opponent can counterattack by upgrading the system or changing the algorithm, but in electronic warfare, unless hard kills are carried out, there is no one-and-done solution. It is already quite good if it can maintain its advantage for a period of time. ?Xu Yang organized the language a little, and then explained: "A complete GPS navigation signal is divided into three parts: pseudo code, carrier wave and navigation message. The pseudo code corresponding to civilian use, and even the military pseudo code of a considerable number of U.S. allies, is a crude capture C/A code, while the military precision capture The code is P code. The C/A code is completely open to the world, so it can be directly based on the real satellite signal format, forge a spoofing signal that is similar to the real signal, modify the position information in the satellite navigation message, and then send it to the spoofing target. I have already tried this generative interference method. It can easily change the location coordinates in China to Africa. It can even generate a complete false movement trajectory, allowing the navigation equipment to work exactly as we want. To be honest, this research progress surprised Chang Haonan: In other words, if the opponents drones or precision-guided weapons use C/A codes for navigation, can we make these things listen to us? ? Don''t look at Xu Yang''s understatement, it seems that he can interfere with the C/A code casually. In fact, the real difficulty of this task lies in the reverse solution of the navigation message, allowing the receiver to continuously calculate "wrong but reasonable" position information. Otherwise, the GPS navigation device itself is not completely stupid. If you really let the location information keep jumping around, the relevant signals will be blocked immediately. What Xu Yang just said was generating a complete false motion trajectory. It shows that this algorithm is quite reliable in terms of calculation accuracy, stability and speed. ?Furthermore, dont underestimate the interference to the C/A code. Not to mention other countries, even within the US military, there are many devices that use civilian code positioning. Theoretically yes. Xu Yang nodded: "But this requires our interference signal to be much stronger than the satellite positioning signal. It is best to install it on an airplane or vehicle and perform close-in jamming midway." UAVs are okay, but if they are guided weapons, if they wait until they are close to the target before starting to interfere, then even if the interference is effective, at most it will cause the ammunition to deviate slightly from the target. "and" Speaking of this, Xu Yang changed the subject: "This method will not work for P codes. Unless we can obtain various parameters of the P code signal structure, or directly obtain a satellite-borne signal transmitter, it is impossible to directly generate a navigation signal that is realistic enough. " ?Chang Haonan is just a sweaty soybean: Then lets just change our thinking... ??The military code signal structure of satellite positioning systems in various countries is top secret. Not to mention making it public, even allies have to guard against it. ??If you can even get the complete parameters of the P code, then you dont need to think about the new three-on-three-defense, you can just write a plan to land on the West Coast... If you think about it differently, is it forwarding interference? Xu Yang has obviously also thought about other technical routes. Thats right. Chang Haonan grabbed the pen and paper and drew a simple diagram: The principle of pseudo-range positioning of GPS is to receive satellite navigation signals transmitted by 4 or more satellites, then calculate the pseudo-range based on the signal transmission time, and finally calculate the current position. "Now that we can''t forge the P code, we can let the jammer receive a completely real GPS signal, process the real GPS signal and forward it based on the relative position between the jammer and the target price receiver, and the target GPS receiver captures and tracks the spoofed GPS signal. , to calculate the wrong navigation position. As for the specific deception method, just improve it based on the algorithm you just mentioned. Only the pseudo code part differs between military signals and civilian signals. The format and content of the navigation message data code are exactly the same. Of course, there will be delays in the signals between multiple satellites, and our spoofing signals are sent out simultaneously, so we have to forge the time information to control the time difference within..." ?Chang Haonan wrote a calculation on paper: Just control the result to a positive number. ?This idea is not complicated, Xu Yang understood it after just a little thought. ?Of course, the degree of freedom of deception content of forwarding jamming is low. For example, it is more difficult to replace the target signal from China to Africa. But it is not difficult to generate a signal error on the order of hundreds of meters. ?However, this idea still faces similar problems at the hardware level. But even so, we still need a device that can receive and interpret the P code, otherwise the signal forwarded will still only be the C/A code. Furthermore, this requires a very high signal processing speed for the jammer. After all, signal reception, processing, and forwarding are all completed by the jammer. In the case of generative interference, the jammer actually only needs to send signals. Theres nothing we can do about it. ?Chang Haonan threw the pen aside: It would have been impossible to interfere with military code positioning through purely technical means. Otherwise, the Americans and the Soviets would not have spent so much money building satellite navigation systems. "Fortunately, the positioning logic of GPS is passive positioning. The positioning terminal only receives but does not send signals, so it is not so sensitive. In any case, it is definitely more difficult to get a receiving terminal than to sneak into a NASA factory to dismantle a satellite signal. transmitter, or its easier to steal the complete characteristics of the P code. "As for the calculation speed...it''s actually not bad. I''ve read the information before. I forgot where. The characteristic data of GPS is only updated every 12.5 minutes. Therefore, after obtaining the data code through any GPS receiver, there is still a comparison. Sufficient time for data processing The bigger problem is that the inertial navigation equipment performs normalized information square detection on the signal. If the gap between the navigation signal and the inertial navigation signal is too large, it will be automatically filtered out..." ?Xu Yang, who was quite impatient, had already picked up his bag and stood up to leave: It doesnt matter, I have already considered this. The normalized information square is a scalar value. As long as you pay attention when generating deception signals, each false signal only changes the direction and does not change the distance to avoid this detection. I will contact the 14th Institute of Electronics and ask them to study the specific hardware design first. Before getting the receiving terminal, we can use the C/A code navigation device to do a functional test. Chang Haonan also stood up and sent the other party to the door of the office: Ill report the matter of the receiving terminal to the Science and Technology Commission. This thing will have to wait for an opportunity (End of this chapter) Chapter 536 Turbofan 9A finally survived Chapter 536 Turbofan 9A, finally survived In fact, if you are willing to wait a few more years, after the US military invades Iraq in 2003, GPS military positioning terminals will be used all over the world by fellow Middle Easterners who have seized trophies and American soldiers who resell the equipment, directly interfering with GPS. The threshold has been lowered several levels. So much so that after 2010, slightly higher-end precision-guided weapons had to use several additional terminal guidance methods to achieve composite guidance. ?Of course, you can also simply have people in the loop the whole time so that you can''t interfere, or use hypersonic speed to hit the jammer at lightning speed. In short, without some uncanny skills, the hit rate is often terrible. But Chang Haonan still hopes to put this equipment into use as soon as possible. ?This kind of equipment is a soft-kill weapon and is relatively less sensitive than aircraft cannons. But if used properly, it can still have a very critical effect. ?After sending Xu Yang out, Chang Haonan returned to the office, picked up the receiver of the red telephone, and called the Office of the Science and Technology Commission. At the same time, in the design research room of Institute 603 in Haojing. A group of designers are sitting around a long conference table. ?At the front of the room is a drawing board and a curtain. With the promotion of digital design and manufacturing models, most research institutes and factories in the aviation industry system have begun to gradually bid farewell to the traditional ruler + drawing board. ?However, after all, it is the collision of the old and the new era, and the human-computer interaction of computers and software in this era is not very good, so it is obviously not realistic to completely go paperless in one step. Especially for many parts that require on-site modification of the drawings, it is more convenient to use pen and paper. Thats why there was such a scene of combining the local and the foreign. Chief designer Tang Changhong stood up and came to the side of the curtain: Comrades, a few days ago, the 624 Institute has sent back the basic performance test results of turbofan 9A. Combined with the performance of the new aviation engine, our next step is to determine the improvement plan for the JH-7A. ??Research on subsequent improvements to the JH-7 has already begun when the two JH-7s were modified. ??But the officially finalized JH-7A is definitely a brand new mass production, so the depth of improvement must be much deeper than the upgrade of the old aircraft. ?If nothing else, the advancements in aviation power, electronic equipment, aviation materials and production processes during this period alone are enough to create a new sub-model without significantly modifying the aerodynamic shape. So, after hearing the topic of the meeting, everyone present immediately cheered up. Tang Changhong paused for a moment, then signaled the conference assistant to switch the projected PPT content to the next page, then gave up half of his body and pointed at the curtain with a telescopic pointer: This is the determined index of the domestic turbofan 9A engine. In accordance with the requirements of superiors and the advanced experience of our brother units, our improvements to the JH-7A this time will try to focus on the engine..." He had originally prepared a long sentence, but only halfway through his sentence, he found that most people''s attention had been completely attracted by the content projected on the screen. Let me just let everyone enjoy it for a while. Is this our completely domestic Sibei? "If there is an engine, the delivery of the new machine should be guaranteed..." In fact, the original plan was to equip about 100 of the basic model JH-7. However, in the end, only two regiments were reluctantly delivered and a few more aircraft were owed, and they fell into a situation of insufficient engine supply. As a result, the Haofei Group''s investment in this model was not recouped for a long time, and everyone had a hard time. Now that we have finally seen a domestically produced engine, it would be false to say that we are not happy. ?But soon someone saw the specific performance part behind it. Then, I realized that the situation was not that simple This turbofan 9A... seems to be more than just a domestically produced Spey..." We are all aviation technicians. After being reminded like this, we naturally quickly discovered the difference: It seems true... Look at the thrust at sea level, its over 10 tons? The difference in thrust from sea level doesnt matter at all. Look at the envelope, especially the envelope at altitudes above 7,000 meters and speeds above Mach 1. Compared with Spey, its like two engines..." The surge margin has also been increased a lot... ????? The performance of Turbofan 9A was definitely the biggest surprise at the beginning of 1998 for these researchers who were worried about insufficient engine parts not long ago. However, when people are extremely surprised, they often cannot help but worry about gains and losses, and even doubt the authenticity of the event... Mr. Tang, are you sure that the technical indicators of the new aviation engine can be... stabilized? ?Someone raised their hand first and asked. The development process of the old JH-7 lasted for a long time, so much so that most of the people sitting here have not fully participated in the steps of project establishment and indicator determination of the old model. ?Furthermore, the basic model of the JH-7 uses the directly imported Spey MK202, which is a very mature model and is completely different from the turbofan 9A that has not yet been finalized. Otherwise, in aircraft design, power comes first. ??If the specifications of Turbofan 9A change significantly, the design of the entire aircraft may be affected. This is definitely a real issue for China Aviation Industry to worry about. Or rather, almost every model has faced a similar situation before. So it is normal to have concerns in this regard. ?Tang Changhong nodded firmly: According to what was reported to us by Liming Group, the subsequent new technology will only be used as a technical verification for the Turbofan 10 and will not be introduced into the improvement of the mass-produced Turbofan 9A. So the technical status of the engine has been basically determined, and there will be no major upgrades. Those two sentences immediately silenced the scene. What everyone is worried about is obviously not other subsequent technological upgrades. Its just that the actual performance after installation cannot meet the paper performance... No, Mr. Tang ??The person who just asked the question wiped the sweat from his forehead: I mean, there wont be any problems with the progress and reliability of the engine, right? The degree of improvement of this turbofan 9A seems...a bit radical..." For China Aviation Industry, which has copied or localized dozens of different types of engines, the previous question everyone considered was how many percent of the performance of domestic models could reach that of foreign prototypes. ?Now I suddenly heard that after being made in China, the performance not only did not decrease, but actually improved... I didnt feel comfortable with it for a while. ?Hearing this question, Tang Changhong was stunned for a moment, and then laughed dumbly. He said to himself that you have never seen the technical specifications set by Mr. Chang from the 606 Institute for turbofan 10, otherwise you would have to stare out your eyes. In fact, Tang Changhong himself was a little unconvinced when he first saw the data of turbofan 9A. However, Haofa Group stated that this model is an improved model that Mr. Chang personally consulted. Then he said nothing more ??Although he has not directly cooperated with Chang Haonan, given his position as the chief model engineer of Haofei Group, he has heard many legends about the other party... ?Of course, in this situation, we must still find some more reasonable reasons. ?So, after briefly organizing the language, Tang Changhong replied: "This is normal. In the improvement process of Turbofan 9A, quite a lot of third-generation engine technology was applied. Therefore, without major changes to the core structure, the maximum potential was squeezed out as much as possible. Besides, Spey MK202 has already Its a British model from the 1960s and 1970s, so its reasonable to be more advanced than it. Moreover, this model has now entered the end of the high-altitude platform test. So far, no major problems have occurred, which is enough to prove that this is a relatively mature model. If nothing goes wrong, our prototype No. 811, or at the latest No. 812, will be equipped with a turbofan 9A and a Spey for flight platform testing! (End of this chapter) Chapter 537 JH-7A, heavier, farther and safer Chapter 537 JH-7A, heavier, farther and safer Although Tang Changhong served as the chief designer for the first time, he had previously served as a subsystem designer responsible for important research and development content in the JH-7 basic model and MA-60 projects, so his prestige within the 603 institute was still not high. problematic. Since he said this, the others below naturally no longer have any worries and began to think about how to adjust the parameters of the aircraft to better adapt to the combat ideas of the new era and not waste the two engines with huge performance improvements. ?Seeing that everyone had unified their thoughts, Tang Changhong continued to add: This time, the users of the JH-7 have expanded from the pure navy to the navy and air force. The latter also provided us with a project fund and required the aircraft to have the ability to conduct ultra-low-altitude penetration and use precision-guided weapons. Users have put forward new requirements, so we also need to make some targeted upgrades to the aircrafts functions. ?After a brief silence, a young engineer responsible for assisting Tang Changhong in the overall design of the overall plan spoke first: "Since the performance of the new engine is so much better than that of Spey, the wing area and strength can be slightly expanded. The old model JH-7 can only carry two YJ-81 anti-ship missiles. This efficiency is too low. " The navy faces fewer targets, so the problem may not be too big, but the air force may have to attack multiple targets at one time, and the low ammunition carrying capacity will definitely reduce combat efficiency. ?Hold a technical seminar and hold a group meeting for graduate students. Once the first person speaks, the others will follow naturally. Another old designer with gray hair on his temples who looked much older than Tang Changhong continued on the topic of the wings: When Mr. Chen designed the aircraft, in order to reduce R&D risks, he chose a more conservative airfoil, resulting in average flight performance. When I went to the 601 Institute on a business trip last year, I saw some J-8C wing design information. I think it can be used as a reference. When speaking of this, someone immediately expressed doubts: "J-8C...isn''t that an interceptor? It''s also a delta wing. It doesn''t match our aircraft at all, right?" Borrowing ideas, but not copying them. ??The old designer stretched out his fingers and tapped the table in front of him, as if to emphasize what he was going to say next: "The finalized J-8C adopts the idea of ??integrated design of leading edge slats, main wings and trailing edge flaps, which can avoid the simultaneous occurrence of mixed boundary layer and flow separation when the flap slats deflect at the same time. Although it is a large delta Its a wing-less interceptor, but its low-altitude lift and maneuverability are excellent. Every interceptor aircraft is designed with low-altitude performance in mind. It would be a huge disgrace if our fighter-bomber failed in this aspect..." "in addition" At this point, he paused slightly, as if he was hesitating whether to continue. ?However, in the end, he lowered his voice and continued: In addition, I also heard from people over at the 601 Institute that the leading edge slat structure of the J-8C was the first change that Mr. Chang started to complete after he joined the 83 Project! People are interested in this kind of gossip content. Mr. Xiao Chang? Its... Who else could it be? It must be Mr. Chang Haonan. If you calculate the time, it should be right... Obviously, the name Chang Haonan is somewhat legendary in today''s aviation industry system. Hissif thats the case, you can really consider sending someone to study. Someone immediately expressed his position clearly: "When Mr. Chang was here to revamp the JH-7, I was fortunate to work under him. According to Mr. Chang''s work style, when designing things, he will definitely leave behind a whole set of methodologies. Let''s learn from them. You can definitely get twice the result with half the effort. The person to be sent to study Seeing that the topic was getting a little off track, Yang Lin, a senior engineer responsible for the design of airborne weapon systems, tapped the document paper in front of him with the cap of his pen: Speaking of ultra-low altitude penetration. "The Air Force''s ultra-low-altitude penetration is different from that of the Navy. The environment is much harsher. Our country currently does not have low-altitude comprehensive navigation equipment like the US military''s AN/AAQ-13, or even targets like PRNK-23K that can adapt to low-altitude environments. The identification and tracking systems lack existing models... ? ? ? As a result, whether it is flying or attacking, we are under great pressure... Looking on the bright side, the JH-7 has two pilots who can be responsible for flight and attack respectively, so the pressure is not as great as the pilots of the MiG-27 or F16C. ? Gong Xinmao, the deputy chief designer in charge of flight control system design next to him, added a sentence, which was barely comforting. Immediately afterwards, he expressed his thoughts: Can we consider using the search radar on the nose of the aircraft to track the terrain, combined with the sled method or the adaptation angle method to achieve terrain matching tracking? "The performance of the 232H fire control radar on the old JH-7 is definitely not good enough, but the 1473 now developed for the third-generation aircraft, or the 1472 radar used on the J-8C should be able to meet the requirements. Anyway, it is not needed for ultra-low-altitude penetration. Go to the radar to search for targets. As a flight control designer, this is obviously the most direct method he can think of. Although the original design of the 147x series radar was for anti-aircraft purposes, it is not difficult to add a youth version of the terrain tracking function to it. After all, it only requires collision avoidance, and it does not say that the terrain must be completely mapped. However, Yang Lin, who has dealt with weapon systems more often, immediately rejected this idea: Its possible to fly this way, but low-altitude penetration is originally about concealment. At this time, its not appropriate to turn on the nose radar in a big way... Im afraid its not appropriate? The emission angle of the nose search radar is too large. If there is another enemy aircraft in the sky, wouldnt everything be exposed when the radar warning receiver goes off? "Is there a better way? It is definitely not possible to integrate terrain tracking radar into a pod at present. Moreover, since users require the use of precision-guided weapons, they also need to consider carrying a laser-guided pod and an airborne The data transmission pod for ground-attack missiles is unlikely to have room for a third pod. ?Seeing that the atmosphere at the scene was a little too lively, Tang Changhong quickly calmed down the scene: "Comrade Xin Mao was right just now. After all, the JH-7A has two pilots, and the pressure during normal flight at ultra-low altitude is relatively not that great. Therefore, compared to the automated low-altitude navigation pod, we still have to pay attention to the most basic flight safety issues. According to feedback from basic JH-7 pilots, what they are most worried about is actually a sudden power failure during low-altitude flight. In terms of flight safety, I remember that the Chengdu 611 Institute used a technology that could predict engine surge in advance based on the air intake conditions during the testing of the Project 10 prototype. After discovering the risk of surge, we It will restrict the aircraft from continuing to make violent maneuvers and avoid the risk of surge. Comrade Xinmao. ?Tang Changhong looked at his deputy chief designer next to him: I have contacted Chief Engineer Song Wencong and Chief Engineer Yang Wei of the 611 Institute. They agreed that we would send a team of technicians to inspect and study. I am going to let you lead the team and stay in Chengdu for a while. ??Although various locations under the aviation industry system have been transformed into groups with branch company attributes, and there is some competition between them, in the final analysis, it is still a game of chess for the whole country. With such important technology, it is impossible to hide it and only use it for yourself. Gong Xinmao was stunned when his name was suddenly called. ?This technology sounds too good to be true. Especially for fighter-bombers that mainly fly at medium and low altitudes, once surge occurs, they often do not have as much time to respond as fighter jets. ?Coupled with the relatively ordinary ejection escape system of the JH-7, it can easily lead to a first-class accident involving aircraft destruction and loss of life. ??If surge can be detected and suppressed in advance, or even just delaying the occurrence of surge, it will be of great benefit to flight safety. So he immediately stood up and solemnly expressed his position: Yes! I will definitely learn this technology and bring it back! (End of this chapter) Chapter 538 French test Chapter 538 The Frenchs Temptation The other side. After the Singapore Air Show in 1998, Guillaume Le Maire, the leader of the French delegation, took a flight back to China alone without even waiting for all the exhibition equipment to be packed. Because of what he had experienced in the past few days, he had completely lost his patience in waiting. Due to various coincidences, France, which originally had great expectations, made little gains in the arms sales market. The new Rafale fighter jet is not favored by any country because it is still in the prototype stage and the price is astonishing. In the past, the Mirage 2000, which once occupied an important position in the international arms sales market, has been upgraded to the Mirage 2000-5 and even conducted a joint flight show with the Singapore Air Force. However, as an aircraft with small size and potential, The third generation of medium and light aircraft has finally declined. ? Indonesia and Malaysia, two countries with relatively stable economies after the Asian financial crisis, clearly favor the larger, heavier, and even cheaper Su-27 and Su-30. ??As for the extremely wealthy Singapore Air Force, as a loyal ally of the United States, the first choice is naturally F15 or F16. In short, it is impossible to focus on French planes. ??The Thai army has shown some interest in the Mirage 2000-5, but the economy, which bore the brunt of the financial crisis, is obviously no longer able to support its large army. You must know that when the economic momentum was good a few years ago, the Thai army purchased nearly 60 F16A/B fighter jets, 4 new frigates, and even a light aircraft carrier in a very short period of time. ?Now that we have suddenly returned to poverty, it is difficult to maintain the current scale of equipment, and naturally we cannot spare the money to buy new ones. As for several other Southeast Asian countries They did not return to poverty. Because I have never been rich... So these countries are generally more interested in China''s two improved MiG-21 fighter jets, and are obviously not the target customers of French equipment. In short... ??French people, pull it. ?Of course, the French military industry has a profound foundation after all, and the Waterloo at a single air show will not have any impact on the larger arms sales pattern. However, considering that the reputation of French equipment in the traditional market, that is, West Asia and North Africa, cannot be restored in a short period of time, this failed effort to open up new markets is still a bit disappointing. If a person has no long-term worries, he must have immediate worries. This sentence may not have been heard by Flamel. But I definitely understand the truth. So, his thinking is very clear ?The top priority is to complete a few businesses with enough influence to stop the decline in public opinion and the market. The former may be even more important. Army and naval equipment are not the French''s strengths. The task of completing this business naturally falls on the pride of France, which is the aviation industry. In a short period of time, the only equipment they can come up with that meets the requirements of "sufficiently influential" are Rafale fighter jets and NH90 helicopters. ??The problem currently faced by the former is that the development progress of the M88 engine planned to be equipped is hindered. Although it has borrowed a lot of design from the F110 engine, its actual reliability and lifespan are problematic. Even after reducing the thrust by nearly 15%, the M88-2 is still plagued by reliability and failures. For this reason, the first few Rafale prototypes had to be temporarily equipped with imported F404 engines to test other subsystems, which obviously could not be successfully put into service in a short period of time. It is impossible for the Chinese to have any unique research on turbofan engines, right? Flamel looked at the two photos in front of him and quickly put this unrealistic idea behind him. By contrast, as Kurt Jean Pierre said the other day Most of the problems faced by NH90 are not technical problems. ??If it can achieve the same quiet performance as China''s improved Dolphin, it will definitely be a killer in the 10-ton helicopter market. However, there are two huge obstacles facing Flamel. One is the close allies who are eagerly waiting to get a piece of the project. Second, the helicopter silent technology is at least currently only mastered by the Chinese, and the NH90 is, at least on paper, a military project. So he needs to find a way to convince the Ministry of National Defense and the President, so that these people who are not technical and are likely to be biased believe that they should cooperate with China on the helicopter project. Relatively speaking, the first problem is easier to solve. Eurocopter itself has the dominant position in the entire project. It just needs to act tougher according to what Pierre said before. So, after thinking about it all the way on the plane, Le Maire finally decided to start with the second question first. After determining the order in which to solve the problem, the next step is to think of specific solutions. Applying directly is definitely hopeless. Not only is it impossible to pass, but you may also be labeled as a Chinese spy. ?Although Flamel is not afraid of this, the less trouble the better. Therefore, after returning to the office, he immediately found his secretary. Caroline, help me collect the China-related activities in our country in recent months as soon as possible and make a list for me. ? ? In order to prepare for the Singapore Air Show, Le Maire has been away from France for nearly half a month. Coupled with the laborious preparation work in the early stage, he was somewhat out of touch with the current situation when he returned. The female secretarys eyes widened slightly: Anything related to China? ??Although China''s international influence cannot be said to be particularly large at the end of the 1990s, it is already a country with a population of 1.2 billion that is gradually opening up. Even for the sake of the market, official and unofficial exchanges between countries and China are extremely frequent every year. It is definitely not something that one person can collect casually. Caroline once began to think about whether she had offended the other party. Although she is a government employee and is not actually completely under the control of the client, it is still unpleasant to be put in small shoes. Wellits related to the aviation business, or something we can have some influence on. ? Flamel thought for a moment, then narrowed the scope slightly. Caroline breathed a sigh of relief and nodded slightly: Okay, Ill hand it over to you as soon as possible. It should be said that Caroline was very efficient. That afternoon, a detailed summary table was placed on Le Maire''s desk. The latter was also a little stunned when he looked at the dozen or so densely packed pages in front of him. As the vice-president of the French Aerospace Industry Association, he didnt even know that there could be so many exchanges between the two parties. After the signing of the cooperation agreement last year, the number of unofficial exchanges between us and China increased rapidly. These are only the projects that I can count. Caroline explains: However, most of them have no actual content and are routine relationship maintenance activities. I have bolded the relatively important items, so you can pay special attention to them. ? Flamel opened the document in front of him and found that there were a few bold items scattered on each page. The proportion is not large. ?After all, the two parties are still in the early stages of cooperation. Although the cooperation is heating up quickly, mutual trust and understanding are not enough. It belongs to the stage where there are more retreat businesses. ?But this saved him a lot of trouble. The groundbreaking ceremony of Airbuss China General Assembly Base and the signing ceremony of a new batch of Airbus aircraft orders Airbus A330AIT test aircraft first flight ceremony CAAC/JAA Joint Icing Simulation Wind Tunnel Unveiling Ceremony Chinese and French air force pilots jointly train Airbus new supplier licensing issued After flipping through a few pages, there was indeed a lot of meaningful content, but nothing related to his purpose this time... was found. The French naval fleet visits East and Southeast Asia Flamel frowned when he saw this article: Why is this line marked in black? It doesnt seem to have anything to do with us. Because I have inquired through personal connections, the commander of this mission, Vice Admiral Laurie Vojour, is a fellow countryman of yours, and I guess you may know him. As a secretary, you have a strong ability to communicate with each other in private. ?Especially for someone like Caroline, who is in her early 30s, has a rising career, has excellent appearance, and has a certain amount of experience, she often has quite exaggerated connections. Flamel''s eyes lit up and he sat up straight. Although we are not particularly familiar with each other, we were indeed classmates and have been in contact ever since. Is there any more detailed information about this visit? Yes, please wait a moment. Caroline lowered her head, pulled out a few pages of documents and reports from a thick folder held under her arm, and handed them to Flamel. Visiting 14 countries, the total effective itinerary after subtracting the road is 17 days, of which you plan to stay in China alone for 5 days? The latter looked at this schedule and almost felt stupid. "According to information from the Naval Staff, the main purpose of this trip is actually to promote relations with China. It is just a trip all the way. If it only goes to one country, the purpose is a bit too obvious and it will not be beneficial to Congress. Its so easy to explain that we added another 13 destinations. ?????????Le Maire thought about it and probably knew that this matter was because the navy and shipbuilding industry wanted to make up for the mistakes they had made. ??The Lafayette frigate procurement case a few years ago ended up in troubled waters, and neither the two countries nor the three parties involved were satisfied in the end. ????? As a member of the Aerospace Industry Association, he certainly won''t know the more details. However, considering that in the end, the French Shipbuilding Bureau was under pressure and decided to only deliver the hull with a power system, and also gave China a lot of compensation in some subsequent naval technical cooperation, so there were no serious consequences. Taking into account the current overall cooperation between the two parties, the atmosphere of this trip should not be particularly tense. So this is a good opportunity for Le Maire''s plan. ?Thinking of this, he turned the information to the next page: Visiting ships Jean Bart air defense destroyer, Geyue patrol frigate, Durance integrated supply ship (Its this Jean Bart, not that Jean Bart) It can be seen that the formation is not large in size, but its level is very high, and a lieutenant general was even sent to lead the formation. ??And more importantly, it is completely consistent with Le Maires next plan. Caroline, help me make an appointment with General Vojour, the sooner the better. Is it a business meeting? Or a private meeting? ?Caroline packed up the materials that Flamel had read on the table in front of her and held them in her arms again. The latter took off his glasses and thought briefly: For a private meeting, choose to book a booth in the behind-the-scenes restaurant after get off work on Friday. I know that many people in the Ministry of Defense like to discuss things there. (End of this chapter) Chapter 539 Let’s do some anti-submarine drills first Chapter 539 A wave of anti-submarine drills first The behind-the-scenes restaurant is located near the Palais Bourbon in the 7th arrondissement of Paris. At the beginning, it only existed as a high-end restaurant serving the upper class. However, because the environment is relatively private, not too far away from core institutions, and the high price sets a certain threshold for entry, it has gradually become a place for some middle- and high-level people to "hold small meetings" after get off work. ?After several decades, the status of this restaurant has risen sharply, and it has basically reached the level of "no businessmen". ?Personnel in politics, business, and entertainment circles tend to talk about things they dont want to make public here. Correspondingly, the privacy and security inside the restaurant have also improved far beyond those of the past. It is said that no media has ever dug out useful information about this restaurant. Despite this, many reporters still like to squat nearby to see if they can catch any useful information. ?After get off work, Le Maire did not use his own driver, but asked Caroline to drive him to the door of the restaurant behind the scenes in a private car. What is going to happen next seems to be overstepping the authority. Although it is impossible for anyone to seize any evidence, the fewer people who know about it, the better. As Flamel''s secretary, Caroline is technically a government employee and is not completely controlled by the latter. However, both pros and cons are mutually beneficial, and she is much more reliable than a driver who drives the same for everyone. ?Of course, the more important point is that Caroline got the news about the fleet visit led by Vice Admiral Laurie Vojour, and even the detailed schedule. She was originally an insider. Ill wait for you in the parking lot on the east side of the street. Caroline dropped Flamel at the door of the hotel and drove away. It''s like dropping an acquaintance halfway along the way. For a restaurant of this level and type, it is a basic professional ethics not to ask customers about their identity. Flamel called out a series of numbers, and the staff pointed out the location of the private room to him. Following the other party''s guidance, he quickly opened the private room door with a card. ?Vice Admiral Vojour, who was also wearing casual clothes and a low-key look, was already sitting inside. Judging from the remaining amount of coffee in front of you, you must have been waiting for a while. Good evening, Laurie. After meeting, the two first gave each other a warm hug. ??Although we dont meet often, we are still from the same hometown who are working hard in Paris, and it is absolutely impossible to be a stranger: Im sorry that I came a little late. I went to Singapore on a business trip before and I have a lot of things to deal with when I come back. Its okay, Guillaume. Vaujour patted Flamel on the shoulder, indicating that he didn''t care: Its boring desk work, I understand. Flamel slowly hung his hat, scarf and windbreaker on the coat rack, and then sat down opposite Vojour: Its not all useless things. For example, our association has recently prepared to establish a military aviation equipment management committee and is considering the specific composition of candidates. Isnt that still... ?The Lieutenant General originally wanted to blurt out something useless, but he realized something was wrong halfway through. Lemel is not a fledgling bun. In this occasion, there is a bit abruptly coming to such a sentence, obviously not because there is nothing to find something. But to imply something. What is this committee specifically responsible for? ??Wuruer poured coffee into the cup in front of the fellow villager and asked pretending to be casual. Its hard work to meet the needs of aviation companies and the military, and then be responsible for some quality supervision and equipment acceptance as a third party. Seeing the other party taking the bait, Flamel immediately explained. Of course Vojul would never believe this evaluation. Responsible for management and acceptance. Fools all know that this is the most lucrative position. ?Of course, the lieutenant general himself is an active soldier and holds a high official position, so it is definitely impossible for him to do it himself. But if you can arrange for your close confidants or even relatives... There is still a lot to be done. ?Of course, Vojour knew very well that it was impossible for Flamel to call him here specifically for charity. ??Although the two are from the same hometown, their relationship is not that good. ?However, in this situation, he would not be too naked to engage in a revolving door deal. So the scene froze for a moment. Seeing the Lieutenant General''s reaction, Flamel knew that his foreplay had been done well.????It''s time to get down to business. Laurie, I heard from friends in the media two days ago that you will take a fleet to visit East and Southeast Asia in a while? ?After the waiter rang the doorbell and came in to bring the dinner for two people, Flamel asked straight away. The visit itself is not a big secret, but the specific itinerary has not been made public. Thats right. Worure nodded helplessly: This is a real hard job. It will take nearly half a year including the journey. Fortunately, there is a big ship called Durance River in the formation. Otherwise, I dont know how I will spend these few months..." Young junior crew members generally like to go on ships and go on missions because they can get higher subsidies. But for a senior general of Wojru''s level, this little money no longer matters. ?This visit is not an important mission that attracts national attention. For this reason, leaving Paris, the center of power, for a long time is definitely not worth the gain. What is the specific schedule for the visit? Le Maires question is obviously a bit out of bounds. Logically speaking, the fleets sailing schedule should be kept secret. ?However, under the current circumstances, it is certainly impossible for Vojour to refuse to answer: Starting from the Port of Toulon, crossing the Suez Canal, visiting Egypt, then heading east along the Arabian Peninsula and the Indian Peninsula, first stopping at India and Bangladesh, then the eight ASEAN countries except Cambodia and Vietnam, then Japan, South Korea, and finally Go to China. Just a visit? Lemal''s tone was brisk, like a chat, and he couldn''t hear his attention from it. "Other countries are, and finally China. The above request is to conduct some surface activities with the Chinese Navy to enhance mutual trust between the two sides, but so far no specific arrangements have been determined." ??Wuruer said, taking a piece of snail meat out of the shell and stuffing it into his mouth: My adjutant is writing the specific visit plan. If nothing else, it will probably include crew football games, joint search and rescue exercises, and main gun target shooting. Its a clich..." Can you consider arranging a joint anti-submarine exercise? ????Le Maire did not go around in circles and said directly: Of course it doesnt need to be particularly complicated, just show off our navys anti-submarine capabilities. His idea is very simple. ??When he was in Singapore before, he once asked the exhibitors from China sideways if the improved dolphin helicopter was the active equipment of the Chinese army. The reply received is that the assault transport type on display has not yet entered service with the Chinese Army, but a prototype of the naval type using similar improvement ideas has been delivered to the navy for trial. ?According to Le Maires experience, the Chinese Navy is currently at a stage where it needs to demonstrate its military strength to outsiders. So, if such an exercise can be arranged, you will definitely have the opportunity to see the comparison between the original dolphin and the improved dolphin. Then he can find a reason to cooperate with China. ?Deciding on the specific content of the visit sounds like a big deal, but for Vojul it was just a matter of writing. Hiss... I wish you had said it earlier. He said in a somewhat pityful tone: The Jean Bart is a C70-class air defense ship. If you want to demonstrate its anti-submarine capabilities, it is best to use the F70 anti-submarine model Its not necessary. Flamel quickly shook his fork in mid-air: The anti-submarine helicopter on the F70 is a Big Lynx. We cannot use our resources to promote the British... ??Even though he said that, Wojruer on the opposite side quickly understood the implication: Are you going to take this opportunity to show off the performance of our helicopters, let the Chinese Navy have a good look at it, and do some advertising by the way? Flamel almost choked with one sentence. He said in his heart that I really want people to gain knowledge, but I dont want Chinese people to... But its really a bit troublesome to explain it. So after thinking for a while, he nodded. Thats right, thats it. Thats easy to say. The lieutenant general had no doubt that he was there and immediately agreed to Le Maires request: Although it still needs to be coordinated with the Chinese side, a simple anti-submarine exercise is not a sensitive project. I guess it wont be a big problem..." (End of this chapter) Chapter 540 AC139 helicopter, the key to general aviation! Chapter 540 AC139 helicopter, the key to general aviation! The other side. After chatting with Xu Yang that day, Chang Haonan immediately contacted Ding Gaoheng. ?Of course, the matter is too big to explain clearly in just a few sentences on the phone. Therefore, he spent a few more days writing a report on the entire research and development idea for GPS jamming equipment, and then found a time to send it to the Commission of Science, Technology and Industry for National Defense in person. Ding Gaohengs office is almost more familiar to Chang Haonan than home. Thisis the solution for GPS jamming equipment that you called me a few days ago to tell me about? When Ding Gaoheng received the report, which seemed to be dozens of pages long, he was stunned for a moment. Although he had seen the other party''s amazing ability to sort out ideas before when he read the "Testing and Evaluation Method of Aircraft Engine Inlet Distortion" also written by Chang Haonan. But the material was transferred to the Science and Technology Commission through a third party. In fact, no one knows how long it took Chang Haonan to write it. So the impact is not intuitive enough. But this time, Ding Gaoheng clearly understood that Chang Haonan had only started writing the heavy report in his hand less than a week ago. Yes, but this is so thick because it contains a lot of explanations and derivation of algorithms and content related to ideas. Just take a look at the ten or so pages of the final summary. Chang Haonan said as he took off his hat and scarf and put them aside, then sat on the sofa on the side of the office. Ding Gaoheng quickly took out his reading glasses from the drawer, put them on, and then opened the report he just got. Satellite positioning and satellite guidance have always been a concern for our country. ?While scanning the lines of text in front of him, he said with some emotion: "In August and September of 1995, when the Bosnian War was going on in the Balkan Peninsula, our foreign personnel stationed in Sarajevo saw with our own eyes that the missiles launched by the US military were hitting wherever they were pointed. In two warehouses next to each other, three missiles could Hitting one of them together, the other one was not damaged at all except for some shock waves..." I later learned that it was a total of 13 Tomahawk missiles launched by the USS Normandy cruiser. It was also the first time that a cruise missile with a satellite positioning system was put into actual combat. It really gave us a long-term perspective..." Since then, combating cruise missiles and preventing precision guidance have become compulsory training for units at all levels of the Peoples Liberation Army Ding Gaoheng''s attention was gradually attracted by the contents of the report, and he did not continue after saying this. But what follows is self-explanatory. ?Although the "New Three Attacks and Three Defenses" has been officially adopted as a systematic training content since 1995, in the absence of insufficient technical means, the effects that can be achieved by relying solely on subjective initiative are always relatively limited. At best, we can only use passive response strategies such as decentralized command, decentralized deployment, and enhanced camouflage to minimize losses when attacked. As for resisting the attack... There is indeed no such condition. In fact, after the J-8C fighter jets were officially equipped with naval aviation, the first combat subject practiced by pilots was to use a radar with the ability to look down and shoot down combined with a semi-active radar-guided missile to intercept low-flying cruise missiles. It is used to simulate the response strategy when an imaginary enemy uses a submarine to launch a cruise missile attack on our coastal cities. It is enough to show that the People''s Liberation Army is worried about these long-range precision-guided weapons at this time. ??And if it is possible to interfere with the GPS system on which these weapons rely, even if it is only limited interference, it can greatly reduce the air defense pressure faced by the People''s Liberation Army and important coastal targets. This equipment can also be integrated and installed on aircraft or vehicles? After seeing the scenario for the GPS jammer combat mode, Ding Gaoheng''s eyes suddenly flashed. "In order to ensure the confidence of the interference signal, this device has relatively strict requirements for the emission angle. In other words, the range of action is close to a cylinder, with a small area but a height close to infinite. In order to ensure the interference effect, it is best to be within a distance of The target is relatively close, and the interference is even implemented in advance. It will be mentioned later that, for example, for targets such as cruise missiles, the best way is to use aircraft to carry out accompanying interference during the flight of the missile, inputting wrong altitude and position information to the target, and induce the missile to crash to the ground or into the sea in advance. After saying these words, Ding Gaoheng nodded repeatedly. So, if installed on a vehicle, it can provide accompanying cover for high-value targets such as battlefields and command posts. It is equivalent to supporting another barrier behind the original last line of defense of small-caliber anti-aircraft guns. In terms of the current strength comparison, reducing air defense pressure is to save the lives of soldiers! ?The further back he looked at the report, the more excited the expression on Ding Gaoheng''s face became, and his flipping movements became much brisker.??? In other words, what you need now is a military GPS positioning receiver? After a long time, Ding Gaoheng put down his report without finishing it. It seemed like he wanted to watch it again from the beginning. ?But I endured it. Not one. Chang Haonan shook his head: The jammer needs to receive and analyze the positioning signal sent by the GPS constellation, and then it can be translated through the algorithm mentioned in the report. Considering that we currently do not have the ability to reproduce U.S. military equipment as it is, we can only treat it as a black box for the time being, so... every jammer should need a military GPS positioning receiver. Ding Gaohengs originally joyful expression froze on his face Its hard enough to get one. Do you want to purchase it directly from the US military? It doesnt have to be a complete positioning terminal, such as weapons and equipment, or even satellite navigation modules on ammunition. In short, as long as there is a chip that can process the signal and be removed. ?Chang Haonan explained it in more detail. But the difficult problem facing Ding Gaoheng did not become much easier. "This kind of thing is definitely not something that our Science and Technology Commission can handle. I''ll report it to the relevant departments first and let the relevant departments pay attention to it." Ding Gaoheng scratched his head and sighed helplessly: "Fortunately, your algorithm should be a unique skill. Americans should not pay too much attention to signal receiving terminals. Although it is difficult, it is not impossible. But the output may be subject to some restrictions..." ?When he just read the report, his first thought was to equip each regiment and unit above the regiment in the army with a set of - If there really is a fight, bring the imaginary enemy to the same technical level as us, and then defeat them through rich experience! But now it seems a bit whimsical. Of course, something is better than nothing. ? Even if there are only a few devices, if they can appear in key locations, they can still play unexpected roles. ?So Ding Gaoheng quickly regained his energy. He put the information in front of him into the drawer, and then took out a folder from the filing cabinet behind him. Xiao Chang, there is one more thing. AgustaWestland, which has cooperated with us on the MA-60 project before, hopes to expand the scope of cooperation and jointly develop a new helicopter with Bingcheng Aircraft Industry Group. I communicated with Bingfei and they said that the new helicopter currently under development is part of the solution provided by your Torch Group, so this cooperation requires your nod and agreement to join the project. ?Chang Haonan stood up and took the folder with some surprise. As for the straight-9 improved project, he only pointed out the direction at the beginning, and did not interfere too much later. It all relied on Professor Liu Hongbo''s own performance. ?Looking at it now, it seems that a high-end helicopter giant like AgustaWestland can proactively seek cooperation, which seems to be a good performance... AC139 helicopter The Italians have not only decided on a name, they have even made renderings of the preliminary plan. A is Agusta, C is our China Aviation Industry Corporation, CAAC, AC139, which is jointly developed by Italy and China. Ding Gaoheng explained from the side: "The plan is for 15-18 seats, 6-7 tons, mainly for VIP transportation, medical rescue, search and rescue and other high-end markets. If we agree, the cooperation method will be based on the MA-60, and two final assembly lines will be built in China and Italy. lines, connecting the Asian and European and American markets respectively. In addition, if the technology meets the standards, the Italian side can ensure that the proportion of Chinese suppliers will not be less than 30%. What do you mean? (End of this chapter) Chapter 542 Let the Equipment Industry Department work around you! Chapter 542: Let the Equipment Industry Department work around you! Chang Haonan briefly recalled his schedule: I will hold a technical seminar on the overall design of the die forging press the day after tomorrow. After the seminar, I will have time this weekend. If Italians dont work on the weekend, then Monday will work. You...die forging press... Ding Gaoheng sat upright suddenly: Has the overall plan been finalized? The leaders suddenly sat upright, and Chang Haonan naturally adjusted his posture slightly: Die forging presses are relatively traditional industrial equipment, and the overall solutions are relatively mature. The final technical route chosen mainly depends on our current technical foundation. "For large-tonnage die forging presses, the plate and frame combined structure has relatively low requirements for material technology and component production levels. The main difficulty is that there are too many components and the design process is too complicated, but this is what I am good at. part. ?His words sounded calm, but it was different in Ding Gaoheng''s ears. The latter looked at Chang Haonan blankly, and after being silent for a while, he sighed: "Sigh...I was originally thinking that after the Equipment Industry Department is established next month, I will concentrate the resources of the entire department on your die forging press project to fight a tough battle." At this point, he smiled somewhat self-deprecatingly: "As a result, you commandos just chewed off the hard bones..." Based on the previous idea, Chang Haonan first led a group of people to conduct pre-research under the name of "Large Die Forging Manufacturing Process Development" project, waiting for the manpower and funds from the Equipment Industry Department to transfer to formal research. ??It''s just that the plan has not changed. The project team, which was originally a little cash-strapped, has become stronger due to the 420 million yuan in funding from the Ordnance Industry Group and the addition of hundreds of technical personnel. ?Although most of these people are not as professional as Yan Yongnian and others, they are still elites in the field of mechanical design. For a very large project, there is not much that actually requires "creativity". Most people only need to complete their work step by step. Therefore, although the joining of these new forces is for the purpose of learning, they also promote the project in a real way. Originally I didnt expect it to be pushed so fast, but the comrades in the weapons industry system did give a lot of help and made a great contribution... Chang Haonan first quietly praised his colleagues in the weapons industry system. At his current status, there is actually no need to overemphasize his importance and contribution. Instead, it expresses appreciation for others and better reflects the pattern. Of course, there is also management ability. Immediately afterwards, Chang Haonan said seriously: However, the design plan will be returned quickly, and the resources of the Equipment Industry Department are definitely still needed. The die forging press must eventually be implemented into manufacturing. The structural parts involved in the plate and frame combined frame are many and complex. If they are all purchased according to the market-based process, it will be impossible to implement them all within five or six years. So, after the design of the forging press is released, there must be a department that can be in charge of at least some of the core machinery manufacturing companies in the country to coordinate the production of the entire equipment to ensure the maximum efficiency of project advancement. You dont have to worry about this. Ding Gaoheng waved his hand to signal Chang Haonan to relax: "This Equipment Industry Department was originally proposed by you. Moreover, even if it inherits part of the strength of the original Machinery Industry Department, it is still a brand-new department after all. It just needs a battle to stabilize the morale of the military and train the team. Therefore, the work of the entire department will be carried out around you. In addition, at Jiang Zhong, we have basically completed the screening and screening of the original personnel, and have transferred some key members from several old third-tier factories. Production should be resumed soon. After giving the latter a reassurance, Ding Gaoheng changed the subject: "However, the organizational adjustment will be decided at a meeting next month. After all, the Equipment Industry Department is only a department-level unit, and it is impossible to completely inherit the functions of the original Ministry of Machinery Industry. Besides, such an action would be too obvious, and some People will definitely not agree." So, my idea is to focus on the big ones and let go of the small ones, and control and manage some enterprises and institutions that are involved in the lifeblood of the machinery manufacturing industry. Chang Haonan certainly understood the other partys implication: You need a list? Ding Gaoheng nodded, but immediately shook his head: Its a need, but its not just that simple. After a short pause, he continued to explain: After all, the Equipment Industry Department is only in the process of being established now, and it is our Science and Technology Commissions own people who are preparing to establish it. Therefore, how much power this department can seize in the end still needs to be determined during the meeting next month. "To be honest, I''m not completely sure of the specific results. So just having a directory list is not enough. It would be best to sort it according to importance and priority, or at least classify it, so that we can also use it during the bargaining process. Its very targeted and doesnt throw away the important parts. "Among these, I have asked the General Office of the Science and Technology Commission to contact the current Ministry of Machinery Industry for the general things. However, after the establishment of the Equipment Industry Department, the most priority and core task is the die forging press, so you''d better We can make a list of the companies and institutions you need, and we will deal with them with the highest priority when the time comes. Chang Haonan suddenly understood. However, the game at the conference level is not something he can directly intervene in for the time being. So he had to answer solemnly: Professor Yan and the others should know more about this. I will implement it during the meeting the day after tomorrow and hand over the results to you as soon as possible. Just as Factory Director Makarov could not complete the Varyag without the State Planning Commission and the Military Industrial Commission, without the unified management of the Ministry of Machinery Industry, the impact on many large-scale equipment projects will be fatal. The Equipment Industry Department is an important tool for Chang Haonan to try to reduce this impact. ?Furthermore, from the perspective of future generations, with the development and progress of the times, the connection between the national defense industry and the civilian industry has become deeper and deeper. ??The Commission of Science, Technology and Industry for National Defense, which is solely responsible for military industry functions, will also be reorganized into the Ministry of Industry and Information Technology with broader responsibilities. In fact, it has inherited the functions of the original Ministry of Machinery Industry, Ministry of Metallurgical Industry and Ministry of Information Industry. However, in the previous life, when the Ministry of Industry and Information Technology was established, the Ministry of Machinery Industry had been abolished for ten years. The old staff team, organizational structure and even files and documents have been lost. As a result, the Ministry of Industry and Information Technology could only play the role of "information" for a long time, while the functions related to "work" were absent for a long time. It has also become one of the important reasons for the long-term slow development of China''s machinery manufacturing industry. But now, if some fire can be reserved for the Ministry of Machinery Industry in the name of the Department of Equipment Industry, then there will be no need to restart the stove when the Commission of Science and Industry is reorganized into the Ministry of Industry and Information Technology. Even the functional authority of the original Ministry of Machinery Industry can be restored as a matter of course. ?Of course, it is impossible for Chang Haonan to directly mention this big game to anyone Its hard to tell Ding Gaoheng that the Commission of Science, Technology and Industry for National Defense will be gone in another ten years. So, the purpose can only be achieved through roundabout ways. By the way, theres one more thing. Ding Gaoheng was originally ready to end the conversation by saying a few more words, but after some hesitation, he decided to speak: Xiao Chang, what do you think of Comrade Lan Xinzhis ability? ?This somewhat out-of-the-box question made Chang Haonan unable to react for a while: Secretary Lan... I havent had many contacts with him, but my impression is that he is very straightforward and his ability should be pretty good. "Um" This evaluation obviously cannot be regarded as completely positive, and can only be regarded as a courtesy and error-free content. So after Ding Gaoheng pondered for a moment, he raised his head and continued: I will let Secretary Lan be responsible for handling some project matters with you during this period. Please pay attention to his performance and give me a more accurate evaluation when the time comes. After finishing speaking, maybe he was afraid that Chang Haonans good-natured nature would show up, so he emphasized another sentence: This matter is very serious, and you know it and I know it, so just say whatever you want, and...you dont need to be objective. The words had reached this point, and Chang Haonan also realized that this was going to be true. This means...understanding the organizational relationship? Ding Gaoheng hesitated this time, but finally made his meaning clear: If you think he is capable enough and you feel comfortable working with him, I am going to let him take charge of the Equipment Industry Department. ?Chang Haonan was shocked by himself for the first time. ??He has been to the Science and Technology Committee more frequently than going home in the past two years. Of course, he knows that there has always been talk internally that he is the so-called "non-staff deputy director." But it was always just a joke before. ?Even at the beginning, I once wondered if someone was unhappy with him and wanted to flatter him. Being seriously vigilant for some time. The result is now Ding Gaoheng directly asked for his opinion on the leadership candidates for the bureau-level departments. ??And it seems that this opinion has a decisive influence... No, are you serious? (End of this chapter) Chapter 543 There are four solutions to this problem There are four solutions to this problem in Chapter 543 (4K large chapter) ?Shocked as a shock, Chang Haonan quickly realized that being able to ask for his opinion on such an important personnel appointment was definitely a sign of the organization''s high level of trust in him. ??Although Ding Gaoheng said that he planned to let Lan Xinzhi take charge of the Equipment Industry Department, the leaders of the second-level bureaus of ministries and commissions generally do not belong to the central management sequence. ??But this is not an ordinary job transfer after all, but a candidate for a new department leadership position spawned in a round of large-scale organizational adjustments. ??And this new department is also the focus of many parties'' confrontation. ??It is definitely not something that the director of the Science and Technology Commission can make casually. Including coming to Zhiqiu to ask his opinion on the candidates, I am afraid that is not the case, or at least it is not just what Ding Gaoheng meant. Okay, I will come up with the results before the conference. ?Chang Haonan replied seriously. After finalizing the matter involving organizational appointment, Ding Gaoheng''s expression relaxed a lot. In fact, it was not entirely his intention to seek advice from Chang Haonan on the selection of the leader of the Equipment Industry Department. However, the instructions from superiors were relatively vague, and they only mentioned that pay attention to soliciting the opinions of some core technical personnel in the appointment of key positions. Chang Haonan''s name does not appear directly. Thats why Ding Gaoheng was a little confused before he spoke. After all, the matter of organizational adjustment and reform does mean walking on thin ice. ?Now that I have said it, I dont have so many worries. ?Of course, on the other hand, Chang Haonans multi-faceted reliability and age-beyond maturity have been proven many times by himself in the past two years. ?Especially through the Boeing-McDonnell Douglas merger, almost the entire civil aviation industry in China has been revitalized. To put it bluntly, his promotion of the aviation industry in the past two years has exceeded that of the previous two decades. It can be said to be far-sighted. ?Then, there is reason to believe that even if the same person cannot create the same miracle in the field of mechanical industry, at least it will not be too bad. This is also an important reason why Ding Gaoheng finally made up his mind to speak. ?Of course, those forces that want to hinder Chinas industrial development cannot just give up. Aviation and machinery manufacturing are, after all, two related but parallel industries. ?Always using past achievements as bargaining chips seems a bit unconvincing. It would be best to create something new. Xiao Chang, please be clear with me. Ding Gaoheng resumed his relaxed sitting posture, but did not move to other topics: When do you plan to complete this die forging press and put it into production? I need to determine how many resources to allocate to the Equipment Industry Department in the past two years based on your timetable. ??Although the Committee of Science, Technology and Industry has much more powers than before, the unified power and responsibilities also mean that there are many more places to spend money, even a lot of money. ?For example, the aviation industrial park that has been confirmed to be located in Luzhou has taken up a lot of this years funding. The manufacturing industry is a typical high-investment, long-cycle industry, and it is impossible to see money back within one or two years. So in terms of funds, not to mention tightness, at least not to the level of deep pockets. Having said all that, Chang Haonan thought about it for a while and decided to tell the truth. After all, this also affects the amount of resources that the die forging press can obtain after entering the production process. If resources are sufficient, our first priority plan is to strive to put the equipment into production before October 1999, which can also be regarded as a gift to the 50th anniversary of the National Day. To be honest, National Day gifts are both formalistic and morale-boosting. However, in the dark stage before dawn in 1999, it is obviously more inclined to the latter. In this era, China really needs confidence. In the last life, during the National Day military parade in 1999, not only did the missiles that had just been tested and not yet finalized be brought out to support the scene, but the imported S300 anti-aircraft missiles were even given the name of Hongqi 15, pretending to look like No. 11 Engineering got the production line that way. At one time, it really had the effect of confusing the fake with the real thing. So much so that relevant urban legends are still circulating more than 20 years later. ?In this context, if a heavy-duty die forging press, a powerful and important machine with few units in the world, can really be put into production, it will definitely be regarded as a first-class model. Not to mention the economic benefits it brings by the way. Ding Gaohengs hand shook as he just picked up the thermos cup. ??Even though he had been mentally prepared before, he never expected that the time node set by Chang Haonan would be before the new century. Ding Gaoheng, who barely suppressed the shock in his heart and remained calm on the surface, gave up drinking water, put the cup back on the table, and calmly wiped the water stains that had just spilled on his shirt: "The 50th anniversary gift... is a good title. If it can be done, it will definitely be great news for us, especially the Equipment Industry Department, and it can also stop many people''s mouths." At this point, perhaps because he was worried about putting too much pressure on Chang Haonan, he changed the topic again: However, this time point is a bit exaggerated. I wont talk about it for the time being, so dont put too much pressure on your side. Ensuring the smoothness of the project and the reliability of the equipment are the top priority. Thatthe resources of the Equipment Industry Department Chang Haonan asked tentatively. Configure it according to the time node you mentioned. Under the premise of ensuring that the basic business of other departments is not affected, as long as our Science and Technology Commission system can get it, you will give priority to calling it! ? Ding Gaoheng made a judgment in the blink of an eye Intensify your investment in die forging presses, its worth it! Thats pretty much it for talking about the important things. He originally wanted to stay with Chang Haonan for lunch, but when he thought about the other party''s recent work arrangements, he decided to put it aside for the time being. Ding Gaoheng looked at Chang Haonan''s back as he was about to go out, then suddenly stopped him and added: "As for Secretary Lan, just report to me directly. There is no need to submit written materials." "clear." ?Similar to the situation with the turbofan 10, the design of the die forging press cannot be completely determined at once. After the overall R&D route is determined, there are still many specific technical details that need to be optimized. The technical seminar held by Chang Haonan is precisely to solve these problems. Mr. Chang, according to the method you instructed before, we have completed the model construction and meshing of the overall frame of the forging press. The static analysis of the equipment has also gone smoothly and no problems have been found. Yan Yongnian stood on the podium in the small conference room, pointed at the PPT on the curtain and introduced to Chang Haonan who was sitting at the head of the conference table: As you emphasized before, the first ten natural frequencies of the forging press are 0.40618, 0.43178, 0.64196 We checked the data of the same type of die forging presses abroad and found that the frequency under working conditions is around 0.3, and there is no risk of resonance Wait a minute. At this point, Chang Haonan suddenly raised his hand and signaled Yan Yongnian to pause: Of course its okay to refer to mature foreign data for analysis, but for this working frequency, it shouldnt be difficult for us to calculate it ourselves, right? Although I have no objection to the value of 0.3, there are some things that are best done by yourself. Facing Chang Haonans question, the nearly fifty-year-old full professor of Qinghua University felt a sense of oppression for the first time. He raised his hand to wipe the non-existent sweat on his forehead, and then explained in a weak voice: This is the problem we are facing now. After the static calculation, the original plan was to calculate the stress distribution of each structural member under working conditions, but we found that it is difficult to conduct stress analysis on the local composite load-bearing structure. "Our meshing was done using hexahedral elements in the TORC Multiphysics software. However, during the calculation process, the calculated local stresses were always too high. This indicates on the one hand the uneven transfer of force flow between the combined load-bearing components, and on the other hand On the one hand, it also shows that the deformation between contacting bodies is uncoordinated..." "Considering that fatigue damage is the main reason for the failure of heavy equipment, this problem must be quite fatal. If not solved, it can easily lead to gaps in the contact interface between components that come into contact with each other after being subjected to load, which will be fatal to the equipment. destroy" So we must first complete the optimization design, and then start calculating the dynamic data under working conditions, otherwise the calculated results will be meaningless... In fact, if we go by our previous work habits, we can determine the specific problem in such a short period of time, which can be said to be a pretty good achievement. But in Chang Haonan''s case, Yan Yongnian was nervous until the end of his explanation. Seats between parts in contact with each other Chang Haonan looked at the equivalent stress diagram of the C-shaped plate and the cross key on Yan Yongnian''s PPT, lowered his head and made a note on the paper in front of him. In other words, there should be a problem with the modeling of the interference connection structure? ?Yan Yongnian and several other subsystem leaders looked at each other, and then nodded: "It should be that the contact between the various components of the die forging press is a three-dimensional contact problem, and there are uncertainties in the mechanical conditions of the contact surface. We have tried to use the test-error method to iterate normally, but the calculation efficiency is very low, and the convergence is not yet Difference" Obviously, they have thought about it and worked hard. It just failed. ?Chang Haonan stared at the computer screen, which was the setting program for calculations by Yan Yongnian and others. ?Stress is not concentrated. If it is a manufacturing problem, lets talk about it. If it is a design problem, it is definitely a huge hidden danger. After a period of silence, Lin Qingsong, who was seconded from the Northern Vehicle Research Institute, spoke again and explained: This is the most difficult problem in the entire design plan. If Chang can bring a solution to the next meeting, the subsequent optimization part should be very efficient. "No." Chang Haonan still didnt raise his head, just waved his hand: There is no need to hold a meeting next time. There are generally four solutions to this problem. As for which one to use, you can evaluate it yourself. "ah?" ??Lin Qingsong, who just wanted to find a place for Yan Yongnian to get off the stairs, was immediately dumbfounded. These are not the four ways to write the word fennel. You can know it by reading more books, but it is not of practical use yet. The problem of weak point cracking caused by uneven stress distribution is a huge problem not only in China but also around the world. Under normal circumstances, if the impact is not particularly large, you can only bite the bullet and replace parts more frequently. In any case, fatigue damage is not unusable in the first place, it is just a matter of lifespan. If the impact is large, then generally only targeted reinforcement will be needed. ?Including Lin Qingsongs own jobheavy vehicle designalso faces a similar situation. Each time it takes several years, or even longer, to slowly test and solve. As a result, Chang Haonan came up with four solutions... Chang Haonan signaled Yan Yongnian to return to his seat first, then walked to the podium, picked up a pointer and pointed at the equipment model on the curtain: "In the working state, a small closed-loop force cycle is formed in the upper part of the forging press by the C-shaped plate, cross key, large tie rod, and clamping beam. During the forging process, the force generated by the hydraulic cylinder acts on the upper plate beam and then It is passed to the C-shaped plate, then passed to the large tie rod, clamping beam, and finally returned to the C-shaped plate through the cross key. "So, the most important part here is the cooperation between the cross key and the C-shaped plate. The contact state between the two will not only affect the characteristics of the force flow transmission, but also affect the deformation of the whole machine in all directions. Influence." So the key point is to have a gentle transition in the combined structure so that stress and deformation can be transmitted smoothly and harmoniously. Having said this, he turned back and looked at the dozen or so people sitting below: At this point, approved? Everyone''s reaction was quick or slow, but basically everyone nodded to show they understood. Then the solution is accordingly. ?Chang Haonan pulled over the blackboard next to him and picked up a piece of chalk: "First, you can set uneven interference without changing the shape of any component, which will not weaken the strength of the component itself. As for the specific method, TORC Multiphysics provides a function called ''bonding''. You can glue two parts with different meshes together..." Here, as long as the interference setting satisfies (min)=pd(C1/E1+C2/E2)*10^3, where E1 and E2 are the elastic modulus of the contained component and the containing component material respectively. quantity" Second, based on the force flow analysis I just conducted, I modified the shape of the contact surface between the cross key and the C-shaped plate to reduce the displacement of the two components under pressure..." "Third, the gapping problem just mentioned is actually due to the additional moment generated by the preload force and the reaction force of the main cylinder. It can be considered to modify the lower part of the wedge key into a shape with a certain slope. To balance this additional moment..." The idea of ??the fourth method is similar to the third one, but it is achieved by changing the component structure... On the stage, Chang Haonans thinking became more and more clear. In the audience, everyone also followed his train of thought and wrote furiously. ?Of course, when I write, I have to write hard and fast. The idea can only be revisited later when we go back. Until two blackboards were filled with writing, Chang Haonan finally explained the four solutions he had just thought of. He turned around, originally wanting to ask everyone what they thought. But looking at someone who was either frowning in thought or looking at a loss, this question was not asked after all. There are some things that would be impolite to say. Fortunately, the people who can sit here are not ordinary people. The reason why I couldn''t follow the train of thought for a while was just because he talked too fast and jumpyly, rather than because I really couldn''t understand it at all. Go back and review more, you will always understand. Mr. Chang, why are you so skilled... A slightly younger technician looked at his notebook in front of him and let out a long sigh. Chang Haonan naturally couldn''t directly say that I was cheating, so he had to hold it in for a long time and replied: Perhaps its because I designed TORCMultiphysics (End of this chapter) Chapter 544 To break the blockade, we still need to use technology to speak Chapter 544 To break the blockade, we still need to use technology to speak After the seminar, Chang Haonan specially stayed with Yan Yongnian. Mr. Chang. The latter who was stopped alone suddenly had the feeling of dreaming back forty years ago, when he was in school and was asked by the teacher to answer questions, but he didn''t know the time at all. ?Hence the performance of being a little restless. Fortunately, Chang Haonan is not a real teacher, and he is not planning to conduct a "class test". Instead, after everyone else has left, get straight to the point: "Professor Yan, you know a lot about the mechanical industry system. You have participated in the manufacturing technology research of the old forging press project before. Can you estimate which domestic companies will be involved in producing our die forging press? and research institutions? Yan Yongnian breathed a sigh of relief when he heard that he was not asking about what he had just said. He nodded almost without thinking: This is no problem. "Although many things are different now compared to when I did the research, during the years at Qinghua University, I have been paying attention to some units that were listed as key units in those years. I dare not say that they are too high, at least. The accuracy of 80% to 90% is still guaranteed. ?Chang Haonan couldn''t help but give a thumbs up to the older generation of scientists in his heart. ?In terms of ability and performance, they were limited by the conditions of the year. They may not be particularly dazzling, but their spirit and spirit are definitely nothing to say. ?Even though the project team was disbanded and I was pushed out of my core position, I still persisted in the ideals of the year and started to do a lot of practical things. Its not easy. After calming down his excitement a little, Chang Haonan immediately asked: You know, soon, next month, this round of organizational adjustments will be deployed. The Science and Technology Commission cannot replicate the entire Ministry of Machinery Industry, and can only focus on the big ones and let go of the small ones. So now I need to compile these units into a list. How long will it take to complete it? Hearing this question, Yan Yongnian sat upright on the ground: It doesnt take time. My research results and related information over the years are all kept at home. If you need them, I can go back and get them for you right away! At this moment, the last trace of concern in his heart has disappeared. Since the Science and Technology Commission has prepared to this extent, it is obviously really preparing to inherit some of the powers of the Ministry of Machinery Industry. ?Although it is bound to be weakened, as long as the fire can be left, there is always hope of starting a prairie fire again. ?Chang Haonan was also overjoyed at this time. What does it mean to have an elder in the family like a treasure? He originally thought that this matter would take ten days and a half. It turned out that people had already prepared it... Thats good. Chang Haonan immediately took out his mobile phone and called Zhu Yadan who was waiting in the lounge below, and then said to Yan Yongnian: You take my car and go back quickly. Its best to get it back before get off work. In this era without surveillance video, Zhu Yadan gave full play to his skills. ?Just an hour and a half later, Yan Yongnian returned to the office with a cowhide briefcase that was imprinted with the times. Its all here, Mr. Chang, take a look. ?Chang Haonan solemnly took the briefcase with both hands and dug out several thick piles of materials. Some of the oldest drafts even have the letterhead of the National Machinery Industry Committee written on them. Yan Yongnian looked at Chang Haonans eyes lingering on the yellowed papers and explained: Part of it is still the manuscript of Mr. Shen. Later, after he retired from the Ministry of Machinery Industry, he gave it to me for preservation. ?Chang Haonan suddenly took a deep breath. Awe-stricken. A sense of mission that "three generations of inheritance is in your hands" arises spontaneously. What do the different colored marks in this information mean? Chang Haonan pointed to the red, blue and black logo in a black leather notebook and asked Yan Yongnian. Black means that the situation of this unit is no different from when I did the survey. Blue means that this unit has made relatively great progress in technology and can provide higher standard parts and components. Red means that this unit no longer exists and another supplier of the same type needs to be found. The latters answer was very orderly. Obviously, as he just said, he has never stopped pursuing the die forging press over the years. Chang Haonan nodded with satisfaction: "Professor Yan, now that the design work of the forging press is nearing completion, you have to prepare. After the Equipment Industry Department is officially established, go to Jiangcheng Heavy Machinery Factory to prepare for the specific production and manufacturing work. " Yan Yongnians eyes suddenly lit up. But he still seemed a little unsure, so he tentatively asked: Meaning... I will be responsible for manufacturing this part? Of course, you have project management experience and are familiar with relevant units of the mechanical industry system. You are the most suitable candidate to be directly responsible for equipment construction. Chang Haonan said as he put the information back into his briefcase. He had just called Lan Xinzhi, who would come over to pick it up and give it to Ding Gaoheng in a while. ?As for how much authority will ultimately be given to the Equipment Industry Department, it is currently beyond Chang Haonan''s control. All he can do is prepare. Yan Yongnian, who received a positive answer, stood up and said: I promise the organization that the production and manufacturing of die forging presses will be completed with high quality and efficiency! Chang Haonan next to him was startled by his sudden statement. He quickly stretched out his hand and pressed down, gesturing for the other person to sit down: Dont be too happy yet. I told you in advance that I have very strict schedule requirements, so the burden on your shoulders, Professor Yan, is not light. I am afraid that my burden is light, Mr. Chang, please give me instructions! ??Not only did the vaccination not dampen Yan Yongnian''s enthusiasm, but it made him even more excited, and he even started to speak his local accent. It is now March 1998. We have the resources of the entire Equipment Industry Department and strive to at least achieve trial production of the die forging press within 18 months. ?Chang Haonan told his timetable, and then continued: In order to ensure efficiency, on the premise that the core technology is independent, if there is no domestic supplier that meets the requirements for the time being, then parts and raw materials can be considered to be directly imported, and then gradually replaced with domestic products when they need to be replaced later. Yan Yongnian, who had just looked like he had seen a ghost, finally breathed a sigh of relief: In this case, there is hope for 18 months...but if we use foreign suppliers, the cost may be much higher. ?At this time, Chang Haonan, who was very wealthy, waved his hand directly: We are not short of money now, and as long as the equipment can be completed as soon as possible, even if we spend a little more money in the manufacturing stage, we can make it back quickly after it is put into production. At Chang Haonan''s current position, he has to consider more than just technical issues. ?Especially for a large countrys important equipment such as a heavy-duty die forging press, making it is even just the first step in a long march of thousands of miles. ? How to maximize the effectiveness of this equipment, which was developed with a huge investment in research and development, is a topic that requires continuous consideration. This is one of the reasons why Chang Haonan has been promoting aviation technology cooperation with European countries during this period. Because parts of large aircraft, especially structural parts, are the main products of die forging presses. Compared with tailor welding, forgings have absolute advantages in performance, cost and working hours. ? In the last generation, a considerable part of the Airbus A380s body structural parts had to be produced by Russias Verkhovsarda Titanium Plant. Since it is unlikely that China will be able to produce super-large aircraft of over 200 tons in a short period of time, it is obviously a good choice to use this equipment to make money from Europeans and accumulate experience in the processing and manufacturing of large forgings. Yan Yongnian, who was used to living a hard life, was immediately swayed by Chang Haonan''s momentum and nodded somewhat blankly. After a while, I finally came to my senses: Also, Mr. Chang, I have another question. After all, the heavy-duty die forging press is an influential project. So far, only Russia and France own hydraulic presses with over 60,000 tons. Will foreign companies block us to delay our production plan? Is there a blockade? Of course there will be one. ?Chang Haonan stood up and showed a meaningful smile: However, since we have mastered the core technology after all, they should know that in this case, choosing to import is just a means to improve efficiency by taking advantage of the international division of labor, and the blockade cannot really stop us. On the other hand, the so-called foreign countries are not a whole, they also have their own interests. So the technological blockadecan be broken. In fact, even a year ago, Chang Haonan would not have dared to say such a thing with such certainty. Because he was not sure at the time how the Wassenaar Agreement was being implemented in the late 1990s. But in 1997, too many things happened. From the beginning of the year, China and Europe cooperated to block Boeing''s acquisition of McDonnell Douglas, to the performance of Europeans actively seeking to purchase TORCH Multiphysics software after it came to the numerical simulation world with a crushing attitude, and then to the Italians actively approaching Bingcheng Aircraft Industry Group to request cooperation. All these factors have convinced Chang Haonan that imperialism is still a paper tiger. They only block you when you dont have the technology. Once you really have the skills, they will slide faster than the other... ?Hence, to break the blockade, it is not enough to rely on building relationships and doing public relations. In the end, technology has to speak for itself! (End of this chapter) Chapter 545 The agile Italian Chapter 545: The agile Italian Although AgustaWestland intends to conduct technical cooperation with Bingcheng Aircraft Industry Group, the prototype of the Zhi-9WY has been test-flying in Haojing, and about a year ago, China and Europe also signed the far-reaching agreement here. aviation industry cooperation agreement. So the Italians still chose to stay in this old place that they are relatively familiar with this time. ?Of course, also with some practical confirmation whether you really have something or if you are just bluffing. On the tarmac, Chang Haonan, who had just flown here earlier that morning, finally saw the helicopter that had fascinated Italians ??Although the underlying technology that completed the design plan came from Chang Haonan, this was indeed the first time for him to see the helicopter with his own eyes. After all, Liu Hongbo had been handling it before. At first glance, it looks a bit like Zhi 9WA/WZ in the previous life. Flat nose, photoelectric sighting equipment below, curved hanging beam that does not take up space in the cabin... ?However, there are indeed many differences in the details, especially the details of the main rotor and engine protective cover. Of course, this is also the basis for determining the quiet performance of this aircraft. ? Cui Wenxue, Guo Jingshan and Liu Hongbo gathered around Chang Haonan a little later and were introducing the basic performance of the helicopter to the latter. ?Of course, theres also a rainbow fart. Generally speaking, Cui Wenxue, as general manager, will not be directly involved in specific technical issues such as test flights of new models. But this time the situation is different after all. ??When discussing cooperation with foreign colleagues, the top leader must come forward. In the hangar a little further away, a young engineer who was preparing data and materials on site raised his head and breathed into his frozen hands to keep them warm. Although they come from the ice city in the north, it is known that northerners mainly rely on equipment to survive the winter. ?Hence, Haojing was not feeling well at the turn of February and March. Hey, who is that hovering around the helicopter over there? ?One of the shorter engineers touched the arm of his companion next to him and motioned him to look into the distance. The latter raised his eyes and looked over there: Mr. Cui and Mr. Guo, who else can they be? Theres also Professor Liu who came here before. Hes pretty awesome. He came up with the front fuselage and rotor plans for the new helicopter. You should have seen it when I held a technical seminar before. Then he looked at the screen again, ready to continue working. He is just an ordinary engineer from Institute 602, and he knows his position very well. Performing your own work well without delaying others is the greatest help to the organization. No, of course Im not talking about those three. The first man patted his companion on the shoulder reluctantly: Look carefully, all three of them are following another person! How can The latter raised his head again impatiently. ?Then the sound suddenly stopped. After a few seconds, he raised his glasses vigorously. This doesnt look like Mr. Liang ?The short man''s voice came from the side again. Mr. Liang naturally refers to Liang Zhuoping. If these three people can be followed behind, the first person who comes to mind must be the general manager of the Aviation Industry Corporation. But regardless of age or hair volume, it is obviously not the case. Hissit cant be Mr. Chang Haonan, right? "who?" The general manager of Torch Group, the super guy who developed the TORCH Multiphysics software, is said to be younger than the two of us. For two engineers at the most basic level, if they did not pay extra attention, the amount of information obtained in the late 1990s would not be very large. ?Especially when the Internet is not very popular, it is normal to not know what Chang Haonan looks like if you missed the few times Chang Haonan appeared on TV. Holy shit, are you so awesome? I said that our group has suddenly become enlightened during this period, and can come up with all kinds of good things...It turns out that we have invited such a god..." "Oh... I wish I could be half as good as him, no, one-third as powerful..." "Get to work quickly, don''t think too much, you have no hope..." After a while of whispering, the two of them saw a few people in the distance walking towards the hangar and quickly fell silent. Not long after, two minibuses drove directly into the test flight area from the outfield along a lane that was rarely used, and finally stopped at the edge of the apron. ?The people who got off the car were naturally the Italian delegation who had just landed. ?This time, they did not transfer domestically, but flew directly from Rome to Haojing on an Airbus A340. It is naturally impossible for civil aviation aircraft to land directly at the airport of the flight test institute, so in the end we had to use cars to pick people up. Cui Wenxue, who had been prepared for a long time, took the lead to greet him. ?In the subsequent process of determining the specific cooperation plan, Chang Haonan, who has mastered the core technology and has a strong voice within the Science and Technology Commission, is naturally the absolute leader. But nominally, AgustaWestland is cooperating with the Bingfei Group, so Cui Wenxue is still responsible for these matters. ?Of course, Chang Haonan also enjoys his leisure time. He is not a person who particularly likes to interact with others. Just because he is too strong, he accidentally made a lot of connections... ?However, it is unexpected, but it is reasonable. Chang Haonan soon saw the familiar face of the leader in the Italian delegation. Rosie Colombo. ??After some useless pleasantries, the Italian''s attention was quickly attracted by the helicopter parked not far away. In fact, this Z-9WY has already been publicly displayed and flown at the Singapore Air Show. However, the European and American media did not pay much attention to the Chinese exhibition area, and Italy did not participate in the Singapore Air Show. Therefore, including Colombo, this was the first time for everyone in the delegation to see it up close. . Nico Gambelli, who was following Colombo, stepped forward and took a closer look at the helicopter in front of him. As the technical director of the 15-seat new helicopter project, he was invited to oversee the cooperation. To be fair, even if you just look at the surface of the plane, you can feel a simple atmosphere coming to your face. For an Italian who likes precision and luxury, this feeling is like someone putting green peppers into Roujiamo in front of Haojing people, which is very uncomfortable. He looked at Colombo next to him with a slightly suspicious look. ?Subjectively, he didnt quite believe that a helicopter with this kind of workmanship could be as quiet as the other party said. ?Chang Haonan and Cui Wenxue did not restrict the group of Italians from looking around. ?Just like some exams, you will fail even if you open the book. The main rotor of a helicopter needs to strike a balance between silence and efficiency, and it also needs to be designed to be coupled with the fuselage. The whole process requires a lot of experience and calculation skills. ?Let alone just looking at the airplane, even if Chang Haonan lent them Zhi 9WY''s design drawings, there was no way to transfer them to other designs as they were. I have seen artificial dolphins made in France, and at least the workmanship is much better than this one. The difference that can be noticed at a glance is mainly that the tip of the rotor is sharpened and swept, and the shape of the engine cover is weird. While speaking, Gambelli and Colombo retreated to a position far away from the helicopter, because the two test pilots had already entered the cabin and were starting the helicopter in preparation for a demonstration flight. To be honest, its hard for me to believe that such a helicopter can reach... Before he finished speaking, a gust of breeze blew from the direction of the tarmac. Obviously, this is the air wave caused by the rotation of the helicopter''s rotor. Because the distance is far enough, the wind is actually not too strong. ?Even the hat on your head will not be blown away. ??But the gentle breeze blew on Gambellis face, making him feel a bit of burning pain in his face The plane has already taken off, and the conversation he just had with Colombo was not even interrupted by the noise. Dr. Gambelli, Im sorry I didnt hear you clearly. What do you mean its hard to believe? Colombo did not mean to be sarcastic, he was really confused and did not hear clearly. I said Gambelli stiffened for a moment, but soon changed his words without changing his expression and without a beat: I said, its hard for me to believe that we didnt discover that the Chinese people are so advanced in helicopter design until now (End of this chapter) Chapter 546 I come, I see, I am conquered Chapter 546 I come, I see, I am conquered... ?Colombo felt that the sentence structure of Gambelli''s sentence was a bit strange, but because his main attention was on the sky, he didn''t think too much about it. He just shook his head and said in a determined tone: I have been in contact with the Chinese people since two years ago, when I was still at AgustaWestland. It was also here, but the object of our cooperation at that time was a propeller-driven passenger aircraft, like the ATR72. Im sure they didnt have such a high level of technology at that time. Gambelli looked over with some confusion: MA60, I know, it is our companys first fixed-wing product, but if their technical level was not up to par at the time, why should we choose to cooperate? As an engineer who specializes in the helicopter field, he can only have a vague understanding of the company''s newly established fixed-wing business unit. Specifically, after making sure that the other party''s existence would not affect one''s own status and the resources obtained, he stopped paying much attention to it. The situation is similar to this aircraft. Although everything else is average, its core competitiveness is very strong. It can save about 8% of fuel compared with passenger aircraft of the same class. This is what many airlines dream of. Colombo also lowered his head again as he spoke and rubbed his sore neck: Furthermore, their technological progress is very rapid. When I first came to China, when I saw the MA60, it looked very crude, with a lot of shadows of the Soviet An-24 transport aircraft on it. "But only half a year later, the other aircraft was completely different. In addition to the fuel economy card, they also installed new propellers and flight control systems, which reduced the noise in the cabin to the average vortex level. Fan airliner level. Hearing this, Gambelli felt as if he had grasped the key point: In other words, thats when they started researching propeller noise reduction technology? ?However, Colombo shook his head decisively: "That''s not true. The MA60''s noise reduction principle is to control the phase difference between the left and right propellers so that the mid- and low-frequency noises they emit cancel each other out. It is equivalent to some kind of active noise reduction measure, and it is only effective inside the cabin. Listening outside Its still noisy. But helicopters with a normal structure obviously do not have this possibility. The main rotor and tail rotor are hard coupled through the transmission mechanism, and there is no way to adjust the phase difference. Moreover, their noise levels are not at the same level and cannot be offset. So this time, we must have worked **** the noise sources such as the rotor and the fuselage. ? Gambelli opened his mouth, but no words came out. Mainly because I really dont know what to say. ?Achieving active noise reduction by adjusting the phase difference of the propeller sounds simple in principle, but anyone with experience in engineering control knows that theory and practice are two different things. It is another matter if it is really implemented. ? And they actually developed another method of reducing noise from noise sources at almost the same time. ?Even until now, he has not fully understood the other partys technical means to achieve low noise... This is a bit embarrassing to say. Gambelli once again heightened the importance of this cooperation in his mind. ? ? If before coming here, his main idea was still the same as before when he faced Bell Company or Westland Company, which was to simply find a bad guy to share the risk. ?So now, he has begun to regard the other party as his core competitiveness. The previous investment in MA60 was undoubtedly a gamble. But both from Colombos personal perspective and from AgustaWestlands perspective, it now seems that the bet has been won. For the former, he relied on the good relationship he achieved with Huaxia during this project to promote higher-level cooperation between the two parties in the future, and he also got a wife by the way. Regarding the latter, the MA60, as a new model provided by a new supplier, has already received a total of more than 20 orders from Thailand and China without completing the finalization and certification process. Obviously, it is also a promising future. . ??If I could replicate the successful experience in the helicopter field... ?Thinking of this, Gambelli rubbed his hands almost involuntarily, showing an eager expression. The Zhi-9WY prototype quickly completed its scheduled two circles around the field and landed again on the tarmac. Helicopters are different from passenger planes. Normal working conditions include loading and unloading cargo or personnel during the engine startup process. Therefore, except for the vicinity of the tail rotor, there are no generally prohibited safety zones around the aircraft. ?The Dolphins ducted tail rotor is even safer. Therefore, after the helicopter stopped and before the pilot shut down the engine, Gambelli quickly ran to Cui Wenxue and Chang Haonan not far away and asked if he could go to a nearby place while the aircraft was in working condition. have a look. ??Although this plane belonged to the Bingfei Group, theoretically the former should have the final say, but he still looked at Chang Haonan standing next to him. ??Cui Wenxue can still figure out who is really in charge of this round of cooperation. ?Chang Haonan directly stretched out his hand, signaling Gambelli to do whatever he wanted. The latter was not polite. He opened the cabin door skillfully, took out a noise-testing device from his bag, and got in alone. ?This device can not only measure a simple decibel value, but also analyze the waveform of the sound to determine the proportion of each frequency band in the noise. About five minutes later, Gambelli got out of the cabin again, sweating all over in the early spring. The results of the instruments were similar to what his ears heard. The overall decibel level does not change much, but annoying pulsing sounds are almost completely eliminated. ?Most of the noise falls within the upper range of human hearing, that is, the sound of the turbine engine itself. The final result is that this helicopter feels more like a small business jet when working. This will be more comfortable for passengers inside the cabin. For people outside the cabin, the propagation distance of high-frequency noise is closer, which will also reduce the impact of low-altitude flying helicopters on people on the ground. No matter how you look at it, its a sure kill. Intellectually, Gambelli already fully understands the value that this technology can bring. But emotionally, it was still difficult for him to convince himself. If a new technology has no disadvantages at all compared to existing technologies, it means that it is completely ahead of its time. But Gambelli really couldnt understand it. Why Chinese? He has no prejudice against any country, but this is really not in line with scientific laws. ??The Chinese have had almost no achievements worth mentioning in the helicopter field before. Now come up and directly dump Wang Zha? Will this low-noise propeller have any problems with aerodynamic efficiency? Gambelli asked this question with extremely complicated emotions. He didn''t even know what answer he was expecting. On the one hand, he hopes that the opponent''s technology will show some shortcomings in at least some other aspect, because this means a "trade-off" rather than an all-round crushing. But on the other hand, he hopes to get a negative answer, because in any case, he has decided to apply the new technology to the new helicopter he is planning. Chang Haonan had already predicted that they would have similar problems. Because from the perspective of rotor design alone, efficiency and quietness are indeed a pair of contradictory properties. He looked at Liu Hongbo and Guo Jingshan who were standing not far behind him: Show Dr. Gambelli the aircrafts technical manual. Soon, a bilingual material in Chinese and English that had been prepared was handed over to Gambelli. ?There is even a murderous and heart-wrenching comparison between it and the original dolphin. ?The data is so detailed that it even includes engine output power curves. ?Of course, this is not a temporary production recently, but was used as a promotional material when I participated in the Singapore Air Show. ??Its just that the last few places that placed orders were all from small African countries, and they didnt even look at these things. ??Just compared it with the naked eye with the AS365N1 next to it, and then signed and placed the order. It directly staged a drama that was forced to death by a fan Although the workmanship and lifespan are indeed a bit worse, it has more functions (armed), better performance (long hover time), and is cheaper. What kind of bicycle do you want? As a professional in the field of helicopter design, Gambelli naturally found the key data directly. The results are obvious. ?While the rotor itself did suffer some impact, the redesigned transmission system allowed more engine power to be efficiently delivered to the rotor end. In comparison, the efficiency reduction of about 3% is nothing to mention. It''s okay even to be regarded as a test error. As an aerospace engineer, Gambelli can certainly see the correlation between these data, and he is definitely not just writing it casually to deceive people. Besides, the test flight just now cannot be fake... Unbelievable How on earth did you do it? Gambelli asked directly to Chang Haonan behind him. ?This time he also saw that Cui Wenxue was not the one who could really make the decision in this cooperation. It was this young man who had been standing nearby inconspicuously before. "In general, the flow field characteristics of the rotor and fuselage assembly during flight are first calculated, and the focus is to capture the shock waves and blade tip vortices, because when the rotor vibrates to emit pulse sound, it will also induce these two This flow state is then integrated to obtain the far-field sound pressure characteristics, and the sound field patterns generated by main rotors of different shapes and specifications can be calculated relatively accurately..." As for the more specific technical details here, our engineers from Torch Group and Bingfei Group will provide more detailed explanations after the cooperation between our two parties is reached. ?Chang Haonan''s answer is basically equivalent to Bolt saying that you can win the sprint gold medal as long as you take turns to move your left and right legs. ?Everyone knows the truth, but obviously not everyone can be as fast as him. Gambelli also knew that it was impossible to extract someone elses core technology here, so he turned to a more theoretical question: Relying on CFD calculations? How do you ensure the calculation accuracy of unstructured grids? After asking the question, he felt that this question might cause some ambiguity: "What I mean is that the finite volume method (FVM) can usually only achieve second-order effective accuracy in the field of compressible fluids. In the past, it was definitely enough to just calculate the aerodynamic efficiency, but if you calculate the sound field according to your idea, The error must be huge. We do not use FVM for CFD calculations, because it is theoretically impossible for FVM to achieve high-precision numerical formats for unstructured grids. ?Chang Haonan replied with a smile. ?While the two were talking, members of the Italian delegation who had just retreated to a distance gradually gathered around. ?Hence, he raised his voice slightly to ensure that others besides Gambelli could hear. In terms of high-precision finite element calculations, there are some specialized techniques used to solve problems such as numerical oscillations or windward physical properties, so calculation accuracy and calculation efficiency can be guaranteed at the same time. This is also the latest research result of our Torch Group in the field of numerical computing. While speaking, Chang Haonan turned slightly and glanced at the circle of Italians around him. Sure enough, the expressions in several of them''s eyes changed immediately. In fact, he had known for a long time that the delegation sent by Italy this time was not just members of the Agusta Company. The words just mentioned were addressed to this group of people. The group stayed in the outfield until lunch time. When there are foreign guests, even from the perspective of face, it is impossible to take everyone to eat lunch as usual. When leaving, Cui Wenxue slowed down a few steps and came to Chang Haonan''s side. I never thought that we would be able to convince these Europeans one day. He has been working in Bingcheng before and has not experienced the negotiation last year, so it is normal to say this. Chang Haonan also said in a half-joking tone: This time the Italians can say, I come, I see, I am conquered ? Cui Wenxue was stunned for a moment, and then he realized that this was a reference to Caesar''s famous quote, and he also started laughing. "but." After the brief joke, Chang Haonan said seriously: It must be admitted that in traditional industries, especially in the field of processing and manufacturing, they started too early. Even if we catch up, it is almost impossible to completely close the gap in the short term, not to mention patent barriers. So this time, in addition to jointly developing a new model of helicopter, I am also considering expanding the scope and depth of cooperation, at least to attract several other Italian companies that came with Agusta! ?His time now is quite valuable. It would be a waste if he flew to Haojing just for one thing. Even though we are here, we still need to produce more results. Just as he said to Yan Yongnian two days ago. Technical blockade can be broken. ??The Italians may not be as well-known as Germany and Switzerland in the field of machinery manufacturing, but in fact the level is very high and the scale is second only to Germany in Europe. Hence, we can take this opportunity to open a breakthrough among EU countries. ??Cui Wenxu, as the general manager of Bingfei Group, had never thought about it so deeply before. ??But since Chang Haonan was talking about this, he definitely had to express his position: "Mr. Chang, I will report to you the details of the negotiations at that time!" (End of this chapter) Chapter 547 A joint venture, but not a comprador Chapter 547: Joint venture, but not comprador After all, Torch Group is nominally a supplier, so Chang Haonan certainly cannot directly participate in the negotiations between Bingfei Group and AgustaWestland. Actually, he doesnt have as much time and energy now as he did last year to personally battle with others about various details. Under normal circumstances, it is good to set a general direction, and more specific operations can be left to other people. ??Anyway, the design patent for the helicopters low-noise rotor is in the hands of Torch Group, which means that it has the final say and final decision-making power anyway. What he is more interested in are actually several other Italian companies that came with Agusta. They came to China with no specific purpose. To put it simply, they were looking for business opportunities. There is no other way. Chinese people actually rely heavily on inertia when doing business with foreign countries, especially in the first ten or twenty years after the reform and opening up. ?Whether it was a pre-planned plan or a coincidence, Germany and Japan seized the time at the turn of the 1970s and 1980s, thus taking advantage of the dividends in the following decades. Even until the time before Chang Haonan was reborn, the products and companies of these two countries still had a filter in the minds of many Chinese people. The Italians missed that window of time, and by the time they reacted, there were only scraps left. In the original timeline, they ultimately failed to replace Japan and Germany on the Chinese side. However, for Chang Haonan, who has the knowledge of twenty years ahead of his time, these businessmen from Southern Europe are indeed very good partners. On the one hand, it is clear who is more likely to make concessions between a country that is eager to do business and open up its market and a country that has made money in China for twenty years. On the other hand, Italy is known as the "China of Europe". Although the two countries are thousands of miles (km) apart geographically, they have some similarities in cultural customs. It is difficult to quantify how much impact this kind of thing will have on international exchanges, but what Chang Haonan knows is that in the future foreign acquisitions of Chinese companies, Italy will be the least obstructed. So its absolutely right to plan ahead now. When visiting the helicopter in the morning, Chang Haonan had already deliberately tested it. When he talked about Torch Groups exclusive technology in finite element calculations, several peoples eyes immediately became hot. Hence, he is very sure that quite a few of them have the intention to cooperate with him. So, after lunch that day, Chang Haonan went to Lin Hai, the deputy director of the International Cooperation Department of the Committee of Science and Technology and Industry, who was accompanying him, and asked for a specific list of members of the Italian delegation. He originally wanted to find a lucky person among them and induce him. As a result, the initiative shown by the other party was far beyond expectations. ?Lin Hai handed the information Chang Haonan wanted to the latter, and then reported: Mr. Chang, a member of the Italian delegation, Mr. Mattia Chiravadi, the representative of C.B. Ferrari, just found me and wants to meet with you in private. Chang Haonan was stunned when he heard the company name. But he knew that Ferrari, which makes sports cars, should only be a brand under the Fiat Group, and it has already cooperated with Jinling Motors. So this company is most likely another company. ? So Chang Haonan pretended to be steady and opened the information that Lin Hai brought to him, and soon found the C.B. Ferrari company. ?? is a company specializing in high-precision CNC machine tools. It seems to have little to do with Ferrari in the automotive world. As for the technology of cooperation, there must be some. ?In the process of developing heavy-duty die forging presses, many patents were generated to optimize the machine tool structure and processing methods based on numerical calculations. ?However, because the Chinese machine tool industry lags far behind in more basic areas such as topology optimization, tool life and positioning accuracy, his patents could not be used for a while. It can be used as a bargaining chip for cooperation. ?Thinking of this, Chang Haonan closed the document in his hand, raised his head and said to Lin Hai, who had been waiting beside him: No problem, lets find a conference room nearby in No. 603. Its best if its just the two of us. It turns out that Italians can escape the free-spirited stereotype as long as there is business. Soon, Chang Haonan met Mattia Chiravadi in a small but private conference room. The two of them actually had relatively close contact when they were in the outfield, but the late winter in Hojing was not very warm after all, so everyone covered themselves up tightly at that time. ?So, when they met again, the two people were almost simultaneously shocked by each other''s age. ?The first thoughts that flashed through my mind were: Why is he so young? Fortunately, both of them have been through many battles and have rich experience, so they no longer easily show their inner thoughts on their faces. So after just an opening remark of compliments and compliments, we quickly got to the point. ?However, the content at the beginning cannot be said to be completely meaningless. At least Chang Haonan knows that this C.B. Ferrari company is a combination of three surnames, and the Ferrari among them is Giuseppe Ferrari, which just happens to have the same name as Enzo Ferrari. Mattia Chiravardi is the son of another company founder, Augustus Chiravardi. Its no wonder that he has reached a high position in the company at such a young age. "Dr. Chang, when I was outside, I heard you and Dr. Gambelli say that your company can solve the problem of unstructured mesh generation efficiency in high-precision finite element calculations and the strong divergence caused by numerical oscillations? " Chiravadi is not going to keep practicing Tai Chi, but will go straight to the point. In theory, you cannot add a doctorate title when you are studying for a Ph.D., but don''t slap the smiling face. In addition, with Chang Haonan''s current situation, normal people would not think that he is at risk of not graduating, so in many cases, this title is directly Added to the loan. Thats right. Chang Haonan nodded: "This involves a brand-new grid generation method. Our company currently has nearly a hundred patents in related application fields and is the world''s leading solution provider. If you need it, you can go to Torch Group Contact our Numerical Computing Business Department on the official website. ?According to international practice, algorithms as rules and methods of intellectual activities cannot be directly patented. Therefore, many of Torch Groups patents rely on TORC Multiphysics software and are registered in some specific application fields. Having said that, Chang Haonan knew that if the purpose of the other party''s trip was just to find Torch Group to solve technical problems in the field of numerical calculation, then there was no need to come over specifically to find him. What I just said was just a hard-to-get tactic. Sure enough, Chiravadi, who saw Chang Haonan''s business-like appearance, further clarified his purpose: Dr. Chang, our companys next-generation five-axis linkage machining center plans to use a full linear motor driver and a new honeycomb structure to increase the tool feed speed and achieve quick-release and quick-change capabilities for the machine tool spindle. ??????????????????????????????????????????????????????????????????????????????????????????????????????????????????? Chang Haonan, he almost couldn''t hold back his laughter when he heard this. He quickly lowered his head and took a sip of water to keep himself from losing his composure Its almost like I fell asleep on my pillow. These two requirements coincide with a batch of new technologies recently developed by Torch Group. After a slight pause, he forced himself to answer calmly: Digital simulation of machine tool structure and machining process is indeed what we are best at and have a relatively rich number of patents. I think if the conditions are right, we can definitely cooperate in this area. The words are very clear: if the conditions are right. This is a hint that the other party can make an offer. Chiravadi certainly understands: We hope to obtain exclusive rights to use this technology within the EU. After saying the request, he stared at Chang Haonan and paused deliberately. But he did not see any emotional fluctuations on the latter''s face. ?Hence, Chiravadi, who was a little unsure of the details, directly used a trick: "As a condition, after the new MCL85 vertical machining center and MOL85 horizontal machining center are put into production, we will provide your company with the exclusive agency rights for these two models throughout Asia in the form of a joint venture, and Supply at a real price that does not exceed 20% of the cost price, and the account price can fluctuate by 10% on this basis. Of course, all models of machine tools involved will provide fully open permissions and will not restrict any functions or usage scenarios. How does Dr. Chang feel about this condition? ??Although the other party spoke in English, Chang Haonan could still hear extreme confidence in his tone. Obviously, in Chiravadi''s view, the situation is already certain, and he is just waiting for Chang Haonan''s nod. . It must be admitted that the other party definitely did his homework before coming to China. You know, that is the exclusive agency right throughout Asia. In other words, in the future, all Asian countries that want to purchase machine tool equipment or after-sales services from C.B. Ferrari can only go to the joint venture established by Torch and C.B. Ferrari. ? Even the Italian parent company cannot directly conduct sales within Asia. And its still available at super low prices. High-precision machine tools, the cost price will increase by 20%. Its almost like giving it away for free. As for the 10% between the account price and the actual price, let alone... I have to say that this condition is indeed in line with the appetite of Chinese enterprises in this era. As a dealer, you dont even need to invest in a factory, as long as you have a decent office location. Then you can order from a certain company according to the customer''s requirements, and you can make huge profits from the middle. Even, this move can be just procedural. Just send the equipment directly to the customer. You can make money just by lying down. ??And if Chang Haonan is more immoral, he can even use Torch Group''s influence in China''s aviation industry system to make all China''s aviation manufacturing companies use C.B. Ferrari''s products. You must know that in the past, China could not buy such high-precision machine tools with unlimited functions. ?By doing this, not only would there be no risk, but it would also be a great achievement... ?Its no wonder Chiravadi feels he can handle things stably. It would not be unusual for someone else to just kneel and lick, let alone nod. Its a pity that what he met today was the Torch Group. Chang Haonan has no prejudice against establishing a joint venture, but the "cooperation" method proposed by the other party is too comprador. If it really wants to agree to this kind of cooperation, although the Torch Group can make a lot of money in a short period of time, and it can also take the opportunity to let the whole of China use advanced equipment that was unimaginable in the past, but for China''s industrial development itself, But it doesn''t have much motivating effect. This is to give up the basics and pursue the last. ?This kind of money is relatively hot to hold. Therefore, after deliberately pretending to think deeply, Chang Haonan shook his head in Chiravadis surprised eyes: Mr. Chiravadi, I support the idea of ??establishing a joint venture, but I cannot agree with the cooperation method you just mentioned. Providing exclusive rights to use patents and technologies is not in line with our companys business philosophy and is not conducive to fair competition in the machine tool industry. ?Chang Haonan had a high-sounding reason to stop Chiravadi. But immediately afterwards, the former performed another trick: However, we can change the way of cooperation. "The form of establishing a joint venture remains unchanged, but for the new machining center you just mentioned, both of us will jointly invest capital and technology to conduct joint research and development with a 50:50 ownership ratio. After the research and development is completed, it will be developed separately in China and Italy. to produce. In this way, since the machine tool equipment itself contains the intellectual property rights of our Torch Group, it will naturally form an exclusive right to use it. It can be the only one in the world, not to mention the EU... What does Mr. Chiravadi think? (End of this chapter) Chapter 548 Layout: Two peaches kill three soldiers Chapter 548 Layout: Two peaches kill three soldiers Chang Haonans move is equivalent to completely subverting the cooperation model proposed by Chiravadi, except for the establishment of a joint venture. Such a huge amount of information makes it impossible for the latter to make a decision in a short time. After all, unlike the Torch Group, which is basically equivalent to Chang Haonans one-spoken voice, although C.B. Ferrari is small with only a few hundred people, it cannot be decided by one person. Even just judging from the company name, this is a three-person voting management model. Chiravadis first reaction was actually confusion. ??He is confident that before coming to China on this trip, he has seen many successful cases of other companies entering the Chinese market in the past, and is familiar with the preferences of Chinese companies. ?Even though Chiravadis initial condition seems like a loss, in fact, in the long run, the benefits are definitely greater. The patented technologies held by Torch Group can be regarded as advanced content in the development of machine tools. But Huaxias shortcomings in the field of mechanical processing actually lie in the underlying basic content. It is equivalent to a science and technology tree. The content in the front is not clicked, but the content in the back is lit up first. In other words, even if Torch Group has advanced technology, it will not be able to build high-precision machine tools in a short time. ?In this case, C.B. Ferrari''s obtaining the exclusive patent rights within the EU is equivalent to gaining a single and absolute leading advantage in the world. It can quickly reverse the company''s disadvantageous position in competition with peers, and even achieve absolute dominance in a segmented field. As for the machine tool industry in Japan, South Korea and North America, Chiravadi honestly has never paid much attention to it. At that time, even if you lose the distribution rights in the Asian market to Torch Group, you will still be able to make a lot of money. ?However, the idea is wonderful, but the actual implementation fails. ?As soon as I got up, I met a young man who didn''t have martial ethics and completely blocked his attack. ?Its not even a question of negotiating strategy. But the opponent is not playing on the same track as him at all... ??The cooperation model proposed by Chang Haonan is relatively "normal". Of course it is not a loss for C.B. Ferrari, but this is equivalent to being deeply bound to the Torch Group in the future. It will inevitably bring some restrictions to the company''s future development. ? Among other things, their planned ML series, which is an advanced machining center equipped with linear motors, torque motors and full-process simulation of the machining process, will be the company''s flagship product in the next 15-20 years. Compared with competing products, the processing efficiency can be increased by as much as 30-40% without affecting accuracy. Combined with digital simulation technology, it can greatly reduce the difficulty of training machine tool operators. However, if Chang Haonans thinking is followed, the property rights of this series of products will be in the joint venture established by the two, rather than C.B. Ferrari itself. For a small, semi-family-owned small business with no plans to go public, this is indeed a risk that is easily out of control. After all, in Chiravadis opinion, Chinas state-owned enterprises like Torch Group should be behemoths with tens or even hundreds of thousands of people. So, he decided to delay it a little: "Dr. Chang''s conditions are a bit different from our company''s previous plans. You know, this is a difference in the cooperation route, not just a difference in specific conditions." So, I cant give you an accurate answer now, and I need to go back and consult our two partners for their opinions. Chirawadi is 100% sure that no German or Swiss counterpart would be able to agree to the conditions proposed by Chang Haonan, because they already occupy a very important market share in China. Furthermore, in the 1990s, even within the industry, there was a considerable delay in the dissemination of information. C.B. Ferrari was able to get this news because the aviation industry between the two countries has already carried out in-depth cooperation by chance. Other countries do not have this condition, and they may not know that a start-up Chinese company like Torch Group has core technologies that are very critical to the machine tool industry. Even if you have heard of it, you may not take it seriously. So currently Chiravadi and Chang Haonan probably belong to a situation where they need each other, Of course, after all, the establishment of a joint venture is a milestone event for both you and us, and it does require careful consideration. ?Chang Haonan also knew that he couldn''t be too impatient at this time. Before ending this conversation, he specially left a hook to lead to the next conversation: "I know that 4 years ago, your company developed the first M series machining center specifically for processing generator blades. You should be very clear that our production needs for blades and blisks will skyrocket in the future. If we If cooperation can be achieved between them, there will be great potential in the Chinese market. "Not only that, I know that your company is facing great competitive pressure in the European Union and even in Italy. I can tell you the truth. Just like this time, although it is obviously between Bingfei Group and Agusta Cooperation among other parties, but our Torch Group is the core supplier and has a high say in the project..." This statement has already been made clear. Even if Chiravadi doesnt know Chang Haonans status in the Chinese aviation industry system, he should know it by asking Colombo after he returns. ??If there is a machine tool that is truly produced by a Chinese joint venture, and a considerable part of the core patents are provided by Torch Group, it will be a surefire success in this field. Moreover, as the Torch Groups influence increases on an international scale, this effect can even extend to the EU in reverse. What is a truly international enterprise? jpg In short, its just one sentence. Hang around with me and youll have meat to eat. ?While sending Chiravadi out of the conference room, Chang Haonan could even feel that he was trying to convince himself to agree to the conditions just now. ?It''s just that the other party is also experienced and knows that the party that shows anxiety first in the negotiation will definitely suffer a loss, so it is still tense. So he was going to do something more and finally give the other person a push. After thinking for a while, Chang Haonan called Lin Hai over again, then pointed to a page in the previous document and said: Director Lin, please help me contact another company in the Italian delegation, the FTP company. Also, you can bring a few more people with you this time to make the formation a little more formal. Its best if other people who come with them can also notice you. ?Lin Hai quickly stood up, took the information from Chang Haonan, and quickly browsed the contents: "Mr. Chang, this FTP group probably has no intention of in-depth cooperation with us. It is just preparing to sell products. Just this afternoon, they have already held two meetings with the leaders of the Luzhou Large Aircraft Industrial Park. But I heard that they are very sincere and say that they can open up the first-level precision authority. As the second-in-command of the International Cooperation Department, he was obviously in control of what happened this afternoon. I know that the selling point of FTP Groups products is that it can automatically correct and compensate for the mechanical geometric errors of machine tools, and reduce standby time and maintenance costs. These are all things accumulated by long-term production data and are not the same development path as our technology. ?Before Chang Haonan was reborn, he had seen FTP company''s products at Factory 132, but they were just limited-function versions. But even so, it is still a very popular high-end product. Then...you mean... ?Lin Hai asked hesitantly. Chang Haonan waved his hand: It doesnt matter whether FTP is willing to cooperate with us or not, as long as we show that we are talking. C.B. Ferrari is now convinced that our current basic technical level is not good enough, and we cannot build machine tools with good enough foundation on our own, so we want to continue to push. "This idea is indeed correct, but they have to realize that there are many companies in the world that can build good machine tools, but the technology in the hands of Torch Group and the size of the Chinese market are unique. After this village , but this store no longer exists. ?This answer immediately confused Lin Hai, and it took him a while to react: Mr. Chang, you mean that you and C.B. Ferrari have just started discussing specific cooperation content? ??He originally thought that the meeting between the two parties this afternoon would be just a formality, at most confirming the other party''s intention to cooperate, and there would be no real content. ??As a result, Chang Haonan''s character as a quick shooter was highlighted, and even the cooperation mode was almost finalized. C.B. Ferrari is similar to our Torch Group. They are both small and sophisticated companies with only 200 to 300 people. Compared with those big manufacturers, they are naturally much more flexible. Chang Haonan patiently explained: The current idea is to set up a joint venture, where both parties will jointly contribute money and technology to develop a new series of high-precision, high-efficiency five-axis machining centers. However, the other party is still a little reserved right now, so we need some sense of crisis to help them make a decision quickly. Two sentences, an understatement. ?But Lin Hai''s pupils trembled when he heard this, and he almost couldn''t hold his breath. This five-axis machining center, Chang Haonan said, is like buying cabbage on the roadside. You know, this thing was something that China couldn''t even buy before. Whats more, its joint research and development with independent property rights. For a moment it felt like a dream. What made Lin Hai feel more open-minded was Chang Haonan''s overall layout. After all, he works in the International Cooperation Department and knows a thing or two about the foreign cooperation projects of the Science and Technology Commission system in the past two years. It can even be said that he saw with his own eyes that China Aviation Industry, which could only participate in some leftover projects, was brought step by step to an important position in the international industrial chain by Chang Haonan, just like playing chess. Now, the influence of this layout has even begun to extend to other fields. Let alone the plan of killing three men with two peaches just now. ?Lin Hai suddenly felt a sense of mission assigned to him by heaven, and he immediately straightened his back and stood at attention: Ill do it as soon as possible, no, Ill do it right away! (End of this chapter) Chapter 549 Torch CB Ferrari Machine Tools Co., Ltd. Chapter 549 Torch-C.B. Ferrari Machine Tools Co., Ltd. To be honest, this strategy of killing three soldiers with two peaches is not Chang Haonans original work. ?The most popular use of this routine in my previous life was when the Ministry of Railways introduced high-speed rail technology. ?Siemens of Germany, Alstom of France, Japan High-Speed ??Rail Consortium and Bombardier of Canada had their backs and forths, and finally took full control of the negotiation initiative and won extremely favorable introduction conditions for our country. ?Especially Siemens, which initially relied on its technological leadership to demand sky-high prices. In the process, its stock price plummeted, and it even fired the entire negotiation department from the beginning. The entire negotiation has also become a successful example that has been used in teaching cases in many universities. Of course, compared to the high-speed rail market where tens of billions of dollars were invested in the first phase of the trial project, although the CNC machine tool field is high-end, its business scale is ultimately limited. Especially C.B. Ferrari and Torch Group, compared with large companies like Siemens, they are completely small and micro enterprises. More importantly, compared to the Ministry of Railways, which only has the Chinese market as a bargaining chip, the chips in the hands of Torch Group are still more convincing. So there is no need for Chang Haonan to dance on four eggs. It is enough to be able to step on two boats. By the way, Director Lin. ?Chang Haonan called to Lin Hai again, who was trotting about to go out. The latter quickly turned around: You said. You can spread some news by the way. Just say that I will return to the capital tomorrow evening. If there are still people who want to discuss cooperation with Torch Group after that, let them directly contact Manager Yang Huimei of the Marketing Department. Create a sense of crisis for the other party, and then use "unexpected events" to shorten the other party''s reaction time. This is a commonly used technique in PUA. ?Of course, if the behavior of establishing a joint venture is compared to falling in love, it seems that it can be explained... "good." ?Lin Hai nodded: "Then I will find a less deliberate opportunity tonight and find a way to escape through the people on the Italian side." ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? Originally, Colombo, who first proposed this idea, belonged to the Agusta faction within the Finmeccanica Group. This project was also to gain resources for his old club. Coupled with some off-site factors - ??Whether it is Anne Colombos status within the European Aviation Agency or the MA-60 project that seems to be progressing smoothly and has achieved a certain degree of success, Colombos proposal has strong persuasiveness within the group. The only different voices that remain are from technical people like Dr. Gambelli. ?However, after watching the Z9WYs flight performance with my own eyes, these few opinions have obviously disappeared. Hence, there was not much of the expected tenseness in the afternoon talks. Before dinner that day, Chang Haonan received a report from Cui Wenxue. Mr. Chang, the other partys requirements have no conflict with ours. ?Cui Wenxue handed a copy of the meeting minutes to Chang Haonan and summed it up succinctly: Actually, certain modifications have been made based on the cooperation method of the MA-60 project. Because the aircraft was jointly developed by both of us from scratch, the model name is called AC139. Of course, we have also considered the subsequent development of the model. If a military model is derived, it will be done in accordance with the respective equipment naming principles. In terms of the property rights of the model, our Ice Flying Group and AgustaWestland each hold 50%. We are responsible for producing the main rotor, tail rotor, engine fairing, front fuselage and landing gear, and the Italian side is responsible for producing the power and transmission system. , avionics equipment, rear fuselage, cabin facilities and optional nose optoelectronic equipment on some models. "However, the Italian side also put forward conditions. For the airframe part, before putting it into production, our production process level needs to be inspected. After all, the product is high-end positioning. I guess, firstly, they are worried that our process is too poor to cause Agusta His reputation has been damaged, and secondly, it should be to promote the machine tools and equipment of Italian companies. Chang Haonan listened and quickly browsed the meeting minutes in his hand: This requirement is not excessive. If our products want to truly go high-end and go global, we cannot always take the cost-effective route and be satisfied with the most basic usability. The Italians level of precision manufacturing, as well as their ability to create a sense of luxury and extravagance, are all things we need to study and study carefully. People rely on clothes, and Buddha relies on gold. After the MA60 built by the Haofei Group was equipped with the in-cabin facilities provided by the Italians, I went in and took a look, and I couldnt tell that it looked like a 7 before. Speaking of this, Chang Haonan raised his head and looked at Cui Wenxue next to him: "By the way, Mr. Cui, I remember that you were in charge of the car manufacturing business before?" ?This somewhat off-topic question made the latter stunned for a moment, then nodded: "That''s right, during the worst time of the military industry in the 1980s, Bingfei Automobile, which was established, was responsible for the sideline. Later, I was transferred from the general manager of the general manager of Bingfei Automobile to the group as the general manager." , if we can learn from it, it will also be good for the automobile business. Chang Haonan said and handed the meeting minutes that he had read back to the other party: Building mini cars, just like our previous aviation products, focuses on cost-effectiveness. As long as it can be driven, users will not be picky. But if you want to build a car, you have to work **** brand, craftsmanship, durability, and luxury. ?Cui Wenxue''s eyes immediately lit up. Even if the helicopter business starts, there is no doubt that he will not let it go easily. But when it comes to transformation, I dont have a clue at the moment. But what Chang Haonan just said gave him new ideas. Previously, the group had been using its car-making business to support its old business, which was unable to make ends meet. ?Now, it seems that it is the turn of the aviation industry to support automobiles. ?Of course, this is entirely an internal matter of the Bingfei Group. Cui Wenxue also knew that it was impossible to bother Chang Haonan with this kind of thing, so he just kept this idea in his heart secretly, and still did not deviate from the topic: Mr. Chang, if there is no problem, our two OEMs and several core suppliers plan to formally sign this evening. Do you want to see if we need to make special arrangements for you..." Before he finished speaking, he was interrupted by Chang Haonan waving his hand: No, its business, Ill just attend as the representative of the core supplier. Thats right, we can also discuss cooperation with some suppliers in Italy. ?Chang Haonans strategy is obviously effective. ?At the signing ceremony that evening, Chang Haonan specifically chatted with representatives of FTP Group and DRS Technology Company alone for a period of time. Among them, the latter is a supplier of optoelectronic equipment. Like AgustaWestland, it is one of the subsidiaries of Finmeccanica Group. Chang Haonan''s visit to them had nothing to do with the plan of killing three men with two peaches. Simply because China currently lacks a high-performance photoelectric detection equipment. The current Zhi-9W and Zhi-9WY are both equipped with laser sights used on ground vehicles. They have a single function and can only be used to guide the Red Arrow 8 anti-tank missile, and the effective range is still relatively short. ??If a multi-functional sighting system is available, it will be a huge help whether it is for armed helicopters or future integrated surveillance and attack drones. ??The Italian delegation is small in size, and they all know each other to a certain extent. Coupled with Lin Hai''s push, the news cannot be concealed at all. That evening, Chiravadi learned through his assistant that Chang Haonan was in contact with the FTP company. He pretended to be unintentional and tried it out. The reply he received was that FTP Company was indeed negotiating with a number of Chinese companies about cooperation and had a positive attitude towards the prospects of the Chinese market - In fact, FTPs so-called cooperation only signed two purchase contracts with the local 172 Factory and the 122 Factory in Bingcheng. Since China has been short of high-precision machine tools for a long time, it is quite willing to spend money in this area. Just two factories purchased equipment worth nearly 100 million US dollars. This is naturally a good start for the FTP Group. Getting an order of US$100 million in one afternoon, it would be a waste if you dont have a positive attitude. ?However, in Chiravadis view, this statement has a different meaning. ??He saw with his own eyes that Chang Haonan had a pleasant conversation with the representatives of the FTP Group when signing the contract in the evening. Obviously, Chiravadi did not know the allusion of "Cao Cao wiped the book and Han Sui", and he took it for granted that the FTP Group was also in contact with the Torch Group. FTP''s machine tools already have the advantages of long overhaul intervals and low usage costs. If they are asked to improve processing and usage efficiency, it will definitely not be a good thing for C.B. Ferrari, a small business. Actually, if it were just like this, Chiravadi might still hesitate. But he soon learned that Chang Haonan would return to the capital early the next night. ?This unusual move was naturally regarded as evidence that Torch Group had reached a cooperation intention with FTP. Chiravadi, who was already numb, called China overnight. After a lot of talking, he finally convinced the other two partners to accept the joint venture conditions proposed by Chang Haonan. The two parties established Torch-C.B. Ferrari Machine Tool Co., Ltd. with a 50:50 share ratio, specifically responsible for the research and development of a new generation of milling machining centers equipped with linear motors and torque motors! (End of this chapter) Chapter 550 Fight back against provocation! Chapter 550: Fight back against provocation! ?After the preliminary cooperation intention is confirmed, Chang Haonan naturally does not need to be involved in the details of establishing the joint venture. First of all, Yang Huimei has rich experience in this area and is fully capable of taking charge on her own. Secondly, the establishment of Torch-C.B. Ferrari Machine Tool Co., Ltd. is not a matter of Chang Haonan or the Torch Group itself. ? Huaxia basically had no say in the field of mechanical processing in the past. Let alone establishing a joint venture with others, even importing finished machine tools depends on other people''s opinions. Often you pay a high price, but what you get is not a fully functional product. Once something breaks down, even if only some trivial parts need to be replaced, foreign companies must send people to repair it. Others do not allow Huaxia engineers to dismantle the equipment at all. Some brands dare to charge tens of thousands of dollars for a simple replacement of a shell cover that does not involve core technology at all. ? Spending more money is the second most troublesome thing. The most troublesome thing is the downtime caused by waiting for slow foreign technicians. The establishment of Torch-C.B. Ferrari at least shows that China has begun to have its own voice and initiative in this field for the first time. If nothing else, just being able to repair machine tools by yourself can solve the worries of many Chinese companies. Therefore, Ding Gaoheng directly sent Lan Xinzhi to work under Chang Haonan, on the one hand to continue the investigation, and on the other hand to handle various miscellaneous matters in the process of establishing the company. As for various procedures, the green light has been given all the way. For example, the conditions of the joint venture include that Huaxia will be responsible for part of the production of machine tools, but Chang Haonan does not have the space on hand. ??If you buy a new piece of land, firstly, it will cost a lot of money. Secondly, the procedures involved are also relatively complicated, especially regarding the nature of the land and the land use plan. It is easy to leak the news prematurely and attract resistance from some people. ?So Ding Gaoheng directly found a veteran factory in Yanjiao and sold (given) it to the Torch Group for zero yuan to avoid hindering the progress of the cooperation. ?This matter is very simple to operate, because the person in charge of the military-to-civilian conversion business happens to be Zhang Yong, the director of the Second Department of Systems Engineering ??That is, the person who hopes to revitalize his business through the die forging press project. ?In the past few months, the progress of several key projects of Ordnance Industry Corporation has been rapid. ?Especially the third-generation tank prototype, which is the head project of Project 9910, was highly praised by General Li Liangxin, the commander-in-chief of Project 9910, who also had a relationship with Chang Haonan. It is logical that he owed Chang Haonan a lot of favors. What is a network of people?jpg From this perspective, Torch Group may be the most special state-owned enterprise in the country. ??Although it is theoretically a subsidiary of the Chinese Academy of Sciences and is considered a member of the National Science and Technology Commission system, almost everyone knows that most of the company''s policies, appropriations and businesses are closely related to the Commission of Science, Technology and Industry for National Defense. Fortunately, Song Jian and Ding Gaoheng have a very good relationship both personally and professionally. Otherwise, with the current influence of Torch Group, they would have to fight for their heads. In the following period, Torch Group was almost busy preparing for the establishment of a joint venture, while Chang Haonan himself, as usual, put his main focus back on the two key projects of turbofan 10 and die forging press. ?However, as the ninth session of the conference draws closer, more and more undercurrents are surging beneath the calm surface. ?During this period, before getting off work every day, Lan Xinzhi would make a special trip to Chang Haonan to report on his work. As a veteran who has been working in the Science and Technology Commission for 20 years, although no one has said it clearly, he can tell from the recent rumors that he may be promoted. ?At such a juncture, he was suddenly personally assigned to the Torch Group by Ding Gaoheng, responsible for assisting Chang Haonan in promoting the registration of Torch-C.B. Ferrari. The meaning is self-explanatory. This is the final test. The examiner is undoubtedly Chang Haonan. ?In this case, he just reported more diligently instead of directly kneeling down and licking her, which can be regarded as an excellent act of integrity. Mr. Chang. At 5:20 pm, Lan Xinzhi knocked on the door of Chang Haonan''s office on time again. Come in. Chang Haonan, who had just read an email, raised his head and saw that the reports brought in by the other party today seemed to be much more than usual. "Mr. Chang, the relevant approval processes in China and Italy have basically been completed. What''s left are some business-related issues. They have been reported to you in pieces before. This is the list after sorting it out. " Lan Xinzhi said as he put the things in his hands on the table: The most important thing right now is that we need to select 5-6 skilled workers to go to Italy for a period of training to meet the requirements for processing machine tool parts. In addition, in exchange, the other party will also send a group of engineers to Torch Group to learn algorithms for machining process simulation. Chinese technicians are not inferior in terms of craftsmanship, but after all, the foundation of new machine tools comes from C.B. Ferrari, so whether it is habits, standards or techniques, they must take the initiative to adapt to others. The converse is also true. In terms of machine tool structure and processing process optimization, China is used as the standard. It is equivalent to a deep binding between the industries of the two countries. Absolutely good news for C.B. Ferrari. Because this is Huaxias first successful attempt in the field of high-end machine tools. ? Once inertia is formed, it means that China will make a lot of references to C.B. Ferrari in the relevant standards of the machine tool industry. It is completely overwhelming wealth. Chang Haonan thought for a moment and quickly replied: As for the selection of candidates, priority should be given to recruiting backbones with excellent positions and skills from the military industry system. Of course, I dont want these people for nothing. After the processing center is put into production, I can compensate them accordingly in terms of price. Furthermore, I suggest C.B. Ferrari to expand the scale of the company as much as possible within the controllable range. Chang Haonan said as he relaxed and leaned back on the chair: Otherwise, Im afraid we wont be able to take the orders we receive by then. Lan Xinzhi holds a notebook in one hand and a pen in the other to record quickly. As the senior secretary of the Committee of Science and Technology, his ability to handle specific affairs is excellent. He categorizes one condition at a time according to importance and related objects, and quickly handles all important business. After the daily routine was over, Lan Xinzhi did not leave immediately as usual. He hesitated for a moment, then took out a newspaper from his inner pocket. Mr. Chang, I think you need to take a look at this. "oh?" Even though it has been two years since his rebirth, Chang Haonan still maintains some of the habits of the 2020s. For example, unless there is a clear purpose, print media is rarely read. He took the newspaper into his hands with curiosity. Has administrative intervention become the biggest obstacle to the results of opening up? ?Chang Haonan raised his eyebrows. ?Such a straightforward title, and considering the current time, he could even guess what the content was. ?After reading it ten lines at a time, he almost burst out laughing. For people in this era, the content of reports is indeed eye-catching. ? Its just that Chang Haonan is someone who has experienced the crazy era of self-media. Reading the content here is almost like watching the ancient tomb sect. ? It takes a few enterprises from developed Western countries as examples without any new ideas, and then compares them with several domestic state-owned enterprises that are in poor operating condition, pointing out that "the rigid operating system is no longer suitable for the market economy of the new era." As for the final spearhead of the article, it is naturally directed at several ministries of industry and the corresponding departments and bureaus that will be established to replace them. ?Of course, if it were just that, it wouldnt make people laugh. What really made Chang Haonan unable to hold his nerve was that the article devoted the most space to criticizing Italy and used Italian companies as positive examples of rapid development after privatization. ??However, today he dares to say that no one in the country knows Italy better than me... ?If nothing else, Finmeccanica Group, which is about to wear the same pants as China Aviation Industry Corporation, is an Italian state-owned enterprise. ?In addition, Italys lifeline industries such as roads, railways, postal services, and energy are also state-owned enterprises... And the revenue level is quite good. It can only be said to be very hilarious. Mr. Chang, do we need to find a way to fight back? Lan Xinzhi was naturally panicked. ?Although the establishment of the Equipment Industry Department is a certainty, if the wind direction is too unfavorable, it will also bring huge obstacles to subsequent work. Of course we have to fight back! ?Chang Haonan patted the newspaper gently on the table: You can postpone the signing ceremony of cooperation with C.B. Ferrari for a few days until the end of this month, so as to give the Equipment Industry Department a good start. Since some people like Mr. Yang so much, let Mr. Yang personally slap them in the face! (End of this chapter) Chapter 551 A good start for the Equipment Industry Department Chapter 551 A good start for the Equipment Industry Department The Equipment Industry Department was finally established. However, there is indeed great internal and external pressure on market opening. Therefore, it is difficult for superiors to blatantly transfer too many functions of the original Ministry of Machinery Industry to the Department of Equipment Industry. Only in the name of national defense and security can some key units be transferred to the Commission of Science, Technology and Industry for National Defense system for management. Of course, from the perspective of the Science and Technology Commission alone, if the scope of authority is further expanded and a dozen large and medium-sized enterprises with considerable influence in the industry are included, it will be profitable without losing money. Director Lan, from now on, our work will need your support. ??In Ding Gaoheng''s office, Chang Haonan shook hands with Lan Xinzhi, who had just received the transfer order and officially became the director of the Equipment Industry Department, and said with a smile. Hey, where can I say support? According to Director Dings deployment, our department must cooperate with Mr. Chang in your work. Lan Xinzhis statement is very accurate. Support can be given or not. But cooperation is a clear master-slave relationship and must be given. Furthermore, even from Lan Xinzhis personal perspective, at least 80% of his transition from the position of secretary to the head of a department was due to Chang Haonans operation. After all, the idea of ??establishing the Equipment Industry Department was first proposed by the latter. The difficulty of grabbing a position from an existing department is not at the same level as that of occupying a new department with a blank sheet of paper. Furthermore, as the first leader of a new department, as long as he is not too abstract and impersonal, then this department will definitely leave his personal mark to a considerable extent. It will be of great help to future development. As for the other support behind it, there is no need to mention it. When he received the transfer order, Ding Gaoheng made it clear that without Chang Haonan''s high praise, it would have been difficult to make the decision to appoint him. ?These two things were enough for Lan Xinzhi to decide his stance for the rest of his life. This time, we still have to thank the Economic and Trade Commission for absorbing most of the firepower for us. Ding Gaoheng stood in front of the office window, looking at the mist-shrouded Beijing outside the building, and began to tell Chang Haonan and Lan Xinzhi what happened below the water during this period: When they came up, they proposed to establish a National Machinery Industry Bureau to take over most of the functions of the Ministry of Machinery Industry. This request was so direct that it immediately became the target of public criticism. Not only those at home, but also the United States, which is negotiating with us on accession to the WTO, has exerted pressure through some channels, saying that what we say is inconsistent with the principle of market openness, let us carefully consider it. At this point, his expression still looked a little gloomy. After all, if we really talk about this matter, it is still affected by foreign pressure. ?But there is no other way. Joining the WTO is China''s top priority at this stage. When the comprehensive national strength is far less than that of the other side of the ocean, the struggle still requires strategy. Fortunately, after their efforts, it actually had the effect of lifting the roof. When we proposed that some of the companies involved in national defense and security be placed under the management of the Science and Technology Commission, the opposition voices became much smaller. Now, although we dont actually have much authority in our hands, fortunately we have set up the Equipment Industry Department. As long as the organizational structure can be determined, there will be room for maneuver in the rest of the things. ? Ding Gaoheng was in high spirits today. After all, he led his department to win a battle on a battlefield without gunpowder smoke. He paused for a moment, then turned around: As for the upper limit of this department in the future, it depends on what kind of work results we can achieve in the future. ?Originally, the establishment of a new department is equivalent to the establishment of a new army. Ding Gaoheng only plays a routine role and provides encouragement. In the end, Chang Haonan came directly to Bo Zhen: "Director Ding, we are already prepared in this regard. The founding ceremony of Torch-C.B. Ferrari could actually be held in the middle of the month. I specifically asked Director Lan to postpone it to next week, early April, as a way to provide support to the equipment industry. A good start! Although Torch Group itself is not under the jurisdiction of the Commission of Science, Technology and Industry for National Defense, the powers of the Department of Equipment Industry include part of industrial planning. Although it is far less powerful than the Ministry of Machinery Industry, which can directly determine the direction of policy development, fortunately it can still be regarded as retained. There is some room for maneuver. ??The last document issued by the Ministry of Machinery Industry before its dissolution was to place some functions of the Machinery Industry Branch of the Council for the Promotion of International Trade under its own name. Immediately afterwards, the Equipment Industry Department took advantage of the situation and obtained the relevant authority to carry out international trade promotion work in the industry. Ding Gaoheng didnt even have time to calm down the surprise on his face before he sat back at his desk: It just so happens that the No. 1 document after the establishment of the Equipment Industry Department has not yet been issued. Comrade Xinzhi, you go back and draft a document to promote foreign cooperation in the high-end machine tool industry, and send it out before next week, just in time to coordinate with Xiao Changs actions. ?Lan Xinzhi had just taken up his post and was at his most smug when he immediately stood at attention with a snap: "yes!" ?Everyone knows that in an asset-heavy field like machinery manufacturing, both industrial adjustment and development are slow, and it is impossible to see results after publishing a document on the first day. But some things are all about posture. Although 99% of the cooperation between Torch Group and C.B. Ferrari has actually been completed in advance, and even the technical personnel sent by both parties have started business work, as long as a landmark event like the signing ceremony is placed after the release of the document, Then you can express your support for industrial policy. ?Including the Equipment Industry Department, we can openly regard this matter as performance and write it into next years annual work summary, and no one can find fault. Everything was carried out smoothly according to Chang Haonan''s plan. Two days later, the Department of Equipment Industry issued Guokefa [1998] No. 1 document, officially listing accelerating the research and development of equipment industry technology and actively seeking foreign exchanges and cooperation as the development focus for the remaining three years of the Ninth Five-Year Plan. At the beginning, naturally there were more people waiting to see the joke. After all, China used to have no say at all in this field, and the market was almost entirely occupied by imported products. Even some media soon made some cynicism with the title "It is not advisable to "launch satellites" under administrative pressure." The article states that in the context of the rigid system and low level of domestic machinery manufacturing, the so-called "foreign exchanges and cooperation" are simply impossible to achieve. At best, they can only exist as some kind of "face-saving project" for the leadership. Rather than spending a lot of resources on such useless work, it is better to be more realistic, completely liberalize industrial policy, introduce more dynamic private capital, and start from the low-end part of the industrial chain. ? ? After such an impassioned speech, if the signing ceremony with C.B. Ferrari hadnt already been prepared, Chang Haonan might have believed it himself. Director Lan must keep this magnificent article, it is very memorable. Chang Haonan read the entire article, tried not to laugh out loud, and handed the article that took up half the page to Lan Xinzhi. Im going to find someone to frame it and put it on my desk. ?At this time, Lan Xinzhi no longer felt nervous as when he saw a similar report for the first time. He almost couldn''t help but joked: It can be regarded as an incentive for our equipment industry departments work..." I think you might as well wait a little longer. Ding Gaoheng, who was standing next to him, said as he put a cigarette under his nose, smelled it, and then stuffed it back into the cigarette case. In the past two years, he almost gave up smoking because of Chang Haonan. Tomorrow afternoon, the founding ceremony of Torch-C.B. Ferrari will be held. I have already contacted the two major newspapers and Ta Kung Pao, and a report will be published the morning after tomorrow. When you put these two pieces of content together, the motivational effect may be even better. Chang Haonan even directly made a murderous suggestion: I might as well frame an extra copy and send it anonymously to the newspaper that published the article In short, the Equipment Industry Department has made a good start and is ready. (End of this chapter) Chapter 552 Kill people, but also kill your heart Chapter 552 Killing people, but also killing people It is of course just a talk to make fun of someone elses newspaper. ??If you really want to do it, regardless of the impact, it would be too humiliating. ??Neither Lan Xinzhi nor Chang Haonan can afford to lose that person. Besides, for people in their position, there are actually more heart-wrenching ways. So, the next day, Chang Haonan, Lan Xinzhi and Chiravadi attended the joint venture signing ceremony together, which was also the ribbon-cutting ceremony of Torch-C.B. Ferrari Machine Tool Co., Ltd. After all, the buildings, land and even workers of this old military factory are all ready-made. ??The scene of three people standing together to cut the red silk was also captured by various media who were invited to come - Among them, naturally, there are several companies that have previously questioned the development route of the Equipment Industry Department. ?Originally, Lan Xinzhi was planning to block their hand over the on-site editing permission. But Chang Haonan said it was not necessary. Some faces are more exciting when played on the spot. ?Although Chang Haonans actual voice in the Science and Technology Commission system far exceeds that of Lan Xinzhi, at least on the surface, the Equipment Industry Department is still the leading business unit. So, after the ribbon-cutting, the first person to speak was Lan Xinzhi. He had long prepared a speech with a gun and a stick, in which he specifically mentioned the issue of confidence in industrial development, and emphasized many times that Torch-C.B. Ferrari was guided by the guidance of the Equipment Industry Departments No. 1 Document. Such joint ventures are established through cooperation. Chang Haonan, who was sitting idle next to him, paid special attention to the fact that there were reporters from several media below, and their expressions were quite exciting. ?One of them even gnashed his teeth so hard that he looked a little ferocious. He was worried that if Lan Xinzhi continued to talk, he would faint. ??Looking carefully, I found that the reporter sitting in the front row was wearing a Southern City Media sign. Thats understandable. The newspaper that published that heroic article just two days ago belongs to this media group. "Maybe that article was written by this guy himself..." ?Chang Haonan thought with a bit of a mischievous attitude. Originally, they were not prepared to be so aggressive. The process of the entire ceremony and the content of the speech were actually decided long ago. It also targets those unharmonious voices before the establishment of the Equipment Industry Department. More importantly, it is to restore some confidence to the machinery manufacturing industry that has just lost its coordination. ??However, some people insist on killing themselves by hitting the muzzle of the gun... And its a good thing that I chose it one day before. Although the people have no memory. But this slap in the face came too quickly. To put it bluntly, in some slightly remote second- and third-tier cities, today we can only see the newspapers published yesterday. ??As a result, the news on the same day would broadcast such an encouraging news, coupled with Lan Xinzhis aggressive speech... No matter how thick-skinned you are, you can''t resist doing this. Actually, Chang Haonans guess is not much different from the actual situation. ?The reporter Meng Yong below who is gnashing his teeth is indeed closely related to yesterdays article. ??Although the author is someone else, it was through his connection as a senior editor and reporter that he was able to occupy half of the page and publish it in Southern City Daily. As a result, today, the boomerang pierced my body. ?However, it is impossible to admit a mistake. ? Meng Yong recorded the content of Lan Xinzhis speech in his hand, and had already figured out a way to unite several media outlets with similar positions to fight back. The idea is also very simple. ? Your new company, even if it is a joint venture, will definitely take the path of dealers and low-end OEMs at the beginning, just like a joint venture car. ? Just seize the parts of the speech related to "reciprocity", "cooperation" and "autonomy" and attack them. Anyway, no matter how high Lan Xinzhis status is, he cant control their media. ?Moreover, his target must be aimed at the Torch Group, not Lan Xinzhi himself. ??For Meng Yong and the Nancheng media behind him, they are just a second-tier state-owned enterprise, so if they are scolded, they will be scolded. ?Even if you find out that you made a mistake later, there will be no trouble. Thinking of this, Meng Yong felt a little better. At the same time, he began to look around for the "friendly troops" who came with him before, and planned to hold a small meeting to discuss it after the ceremony. At the same time, on the stage, after Lan Xinzhis speech, the second one was naturally Chang Haonan. He said that as a joint venture in line with the national high-end technology development initiative, the establishment of the company will not only be a huge progress for China''s machine tool industry, but will also have a revolutionary impetus for the machinery manufacturing industry in Europe and even the world... These contents made Meng Yong shake his head inwardly ?This Chang Haonan looks much younger than the director just now, and he doesn''t have a good mouth. ?Compared to just now, the tone of this speech was too high, and in Meng Yongs opinion, it was even more out of tune. "The more you brag now, the more people will be embarrassed when I write the article after a while..." ?His pen tip moved very quickly, and the initial anger at being slapped in the face had long since disappeared, leaving only the secret pleasure of thinking about the other party being hit by the media attack and being at a loss what to do. Although Meng Yong can''t actually get anything directly from it, the royalties are not particularly worthy of attention for him today. But he really enjoys the pleasure of using his channel advantages to manipulate public opinion and make the other party feel speechless. However, before he was satisfied, Chang Haonan suddenly changed the subject. Just talking about it is not very convincing. So, in order to avoid the suspicion of talking empty words, we at Torch-C.B. Ferrari have brought a surprise to all the media friends who came to the scene, the kind that is guaranteed to be on the front page. The crowd below, which had been almost stagnant, suddenly became commotion. Todays signing and ribbon-cutting ceremony, so far, has really not been a big deal. Journalists all like to make big news. After a brief pause to make sure that everyones attention and curiosity were attracted, Chang Haonan spoke again: Today, in addition to the signing and ribbon-cutting ceremony, we will also officially launch the Torch-C.B. Ferraris first product, the three-axis CNC machining center, MS45T! As he finished speaking, several staff members pulled out a plain-looking rainproof cloth from an inconspicuous location next to the factory building. At the same time, the surrounding lights lit up and hit the surface of a vertical machine tool. ??? Meng Yong, who was still immersed in imagination just now, felt that he was just stunned, and the situation seemed to be a little wrong. He turned his head stiffly and looked at the place where the light was focused not far away. Even people who are not technical can feel a sense of high-end and precision from the bright reflection. Actually, when they first entered the venue, everyone saw this crudely packaged thing. But they basically thought it was just some sundries or ordinary equipment. The result turned out to be... What are your companys products? In just a few seconds, everyone at the scene experienced complex emotional changes from curiosity, to confusion, to confusion, and finally to shock. Then, the first person finally reacted Launching a product on the first day the company was founded? Dozens of eyes turned from Chang Haonan to the machine tool on the other side, and then back to Chang Haonan, going back and forth several times. ?After filling the scene with tension and drama, Chang Haonans voice sounded again: Torch-C.B. Ferrari is by no means just a foundry, let alone a dealer, but a driving force that masters core technologies, collaborates with high-level foreign friends, and jointly promotes the development of the industry. In the name of this machine tool, M and S represent linear motors and servo motors respectively, while T represents the application of the full-process simulation program for the machining process developed by our Torch Group..." ?These words simply predicted all of Meng Yongs thoughts. Just block out the content of the article he wants to write without leaking anything... For the next ten minutes, Chang Haonan was introducing the MS45T machining center. To put it simply, it realizes what you see is what you get to a certain extent ?As long as the processing parameters are input into the program, the product style after processing can be directly calculated, and production can be started only after confirmation. ?This function may seem inconspicuous, but for some companies that need to process a large number of special-shaped and complex parts, it is definitely a trump card tool to reduce production losses and shorten training hours. The optimized honeycomb structure bed and new motor have a 24.1% increase in first-order natural frequency (less prone to resonance) than the old model, a 7.4% reduction in bed mass, and a 27.3% reduction in static comprehensive deformation. The equivalent stress is reduced by 35.6%. All in all, it is a product that completely crushes the old model. And its price is exactly the same as the original A45. ?Of course, this is just the most basic model. ? Even in order to put it into production as soon as possible, it was directly modified based on C.B. Ferraris old model A45 three-axis machining center. After all, not only China has high expectations for this joint venture, but the Italians also have high hopes. ??"Cooperating with China to develop machine tools", if you can''t get some results soon, it will be easy to make people laugh... Mr. Chang, has this equipment already been produced, or is it just a prototype? ?Finally someone couldn''t help it and shouted a question before the formal question-and-answer session. This is what Meng Yong, who has just come back to his senses, wants to know. He thought he might be able to save himself. "certainly." ?Chang Haonan nodded and answered straightforwardly: Actually, four customers at home and abroad have ordered a total of more than 70 products from us, and according to the contract, the equipment will be officially delivered before the end of this month. Not only that, our Torch Group will further deepen our cooperation with C.B. Ferrari, build precision machining research centers in China and Italy, plan to launch a more advanced five-axis machining center, and try to solve extreme problems in the traditional milling process to achieve True full freedom of processing! Here, I also sincerely invite all friends from the media industry to continue to be witnesses and follow the Torch-C.B. Ferrari Company to grow and progress together! After finishing speaking, Chang Haonan''s eyes habitually swept across the audience. ?Inadvertently, he noticed that the ferocious-looking reporter just now had a confused look on his face, as if he had doubts about life after his worldview was shocked. ?The sight stayed there for a moment. Actually, Chang Haonanshi had no idea about the drama Meng Yong had just put in his mind. ?However, for the latter, the look that looked at him on the stage for a moment seemed to contain silent ridicule. ?????????????????????????????????? (End of this chapter) Chapter 553 strategic deception Chapter 553 Strategic Deception ??The joint venture established by Torch Group and C.B. Ferrari is indeed an earth-shattering event for Chinas domestic machinery manufacturing industry. ?However, on an international scale, it has not had any direct impact yet. After all, China has never made any waves in the field of high-end machinery manufacturing in the past. Except for the media who witnessed the launch of MS45T that day and a few insiders in the industry, most people, even if they knew about the establishment of Torch-C.B. Ferrari, most of them only regarded it as something that China had established in the past ten or twenty years. Like other joint ventures, it is just a means for C.B. Ferrari to enter the Chinese market As a pure distributor, we are at most responsible for some less important parts of production and manufacturing. ?Furthermore, since China and the EU launched cooperation in the aviation field last year, European machine tool companies have gradually begun to secretly export some equipment that they did not sell in the past. Now that I see C.B. Ferrari daring to be the first to try something, I feel brave enough at most. Not many people are truly aware of the nature of the cooperation between the two parties and the round of reshuffle that will be brought to the machine tool industry. At least not yet. A few days after the signing and ribbon-cutting ceremony. Mr. Chang, this is feedback on your previous business list. Lan Xinzhi handed the collected information to Chang Haonan, and then sat on the chair opposite the desk: Although there was some resistance, we basically got it all. Now, as long as the OEM is ready and you send the processing flow chart separately, you can start to promote production. As the design work of the heavy-duty die forging press comes to an end, the production of more difficult and troublesome equipment has been put on the agenda. For China, whose overall industrial level is not yet high, the only option to manufacture such giant equipment is to mobilize the whole country. In fact, the Equipment Industry Department first made dumplings just for this dish of vinegar. So after Lan Xinzhi took office, he naturally made the production of die forging presses the No. 1 project supervised by the director himself. ? It should be said that as a new organization, the Equipment Industry Departments work efficiency is quite good. At least Chang Haonan was satisfied with the information in his hand. After flipping through the pages quickly, he raised his head again and said to Lan Xinzhi: Comrade Yan Yongnian and I are leading the project team in the past two days to carry out the final design calibration and drawing confirmation of the die forging press. If nothing goes wrong, we will start issuing drawings at the end of this month. The latter nodded: Then I will inform the persons in charge of the relevant units as soon as possible about the basic situation of the forging press production, and ask them to adjust their business and production capacity as soon as possible, leaving sufficient priority. As the first project that he presided over as director (of course, he actually started it), Lan Xinzhi naturally hoped that it would be completed as quickly as possible. ??If the idea of ??"giving a gift to the 50th National Day" can really be realized, besides Chang Haonan, he will definitely be the one who will benefit the most. After a brief pause, Lan Xinzhi changed the topic again: In addition, Mr. Chang, now that the Equipment Industry Department has been officially established, there is no need for this project to be called a pre-research project, and it is time to become a full-time project. Please decide what the name of the project should be, and I will handle the specific procedures. He has a very clear understanding of the nature of his current position At least for a short period of time, the Equipment Industry Department was actually Comrade Chang Haonans secretarial team. Fortunately, Lan Xinzhi is a secretary himself, so he is quite familiar with these tasks. Lets call it a 750MN giant die forging hydraulic press. ?Chang Haonan is not going to do anything fancy either. A simple device needs a simple name. As for why it is 750MN (75,000 tons) Because after converting the frame structure from the steel wire wound type to the plate and frame combination, Chang Haonan and the others analyzed the bearing capacity of other subsystems in detail, and squeezed out a 10% design margin based on the original design calibration of 680MN. Strictly speaking, it is similar to the surge margin of the previous engine. Such a margin is caused by the insufficient design level at that time. But it is a good thing for Chang Haonan today. At any rate, he can make it now. By the way, this equipment is tied with the two in Russia, making it one of the three largest die forging equipments in the world. After watching Lan Xinzhi write down the name of the project in his notebook, Chang Haonan continued: "In addition, remember to be realistic and count the specific technical difficulties of these units involved in the production of die forging presses. If any company If there is an urgent need to improve the level of precision processing, you can report it specifically, and I will ask Wei Yongming to arrange for the joint venture to jump in and supply them. " ? Wei Yongming, who just graduated from Qinghua University in March, was directly recruited into the Numerical Computing Business Department by Chang Haonan. He is now directly connected with the C.B. Ferrari Group and is responsible for the system development and optimization of new machine tools. Also, the core intellectual property of the die forging press lies in the overall structural design and frame production and assembly. In addition to these, in order to ensure production efficiency, 100% localization rate is not required. However, whether it is imported or domestically produced, they are all treated equally. Full performance testing must be carried out in person, and you cannot just look at the test report issued by the supplier. If something goes wrong, even if we kill the person responsible, the damage will be difficult to recover, so we must not be careless..." Chang Haonan mentioned more than a dozen precautions one by one, and Lan Xinzhi also wrote them down in his notebook one by one. After finishing talking about the serious business, the two finally relaxed a little. Speaking of which, the establishment of our joint venture does not seem to have caused much international repercussions Lan Xinzhi put the pen back into his pocket and said in a casual tone. Chang Haonan then smiled and asked: Director Lan hopes that the international response will be more severe? Hearing this question, Lan Xinzhi shook his head subconsciously, but then nodded again: I mean, on the one hand, I hope to continue to make a fortune quietly. This is also in line with our strategy of keeping a low profile and biding our time. But on the other hand At this point, he scratched his head in embarrassment: Such a great achievement, and I hope it can be seen internationally, giving us Chinese people a chance to feel proud. Its indeed a bit contradictory This complex mentality is quite common among Chinese people in this era. Even Chang Haonan had the same idea when he was just reborn. ?Later on, I slowly stopped worrying about it. There is nothing to be contradictory about. Chang Haonan waved his hand. Although he appeared to be nearly 20 years younger than Lan Xinzhi, he looked more like an elder: Behind keep a low profile and bide your time, isnt there another sentence that will make a difference? One has two sides, so lets look at it dialectically. Personally, I still hope that the international response is weaker now, so that when we really soar into the sky, we will be even more proud. Lan Xinzhi didnt really have any other ideas. He nodded immediately and agreed: Thats right, the most important thing is to produce real results. As for the opinions of other countries, just let them take their own course. Speaking of which, we were able to maintain such little movement this time, largely thanks to those old friends. Chang Haonan said as he took out a few newspapers from the drawer of his desk and handed them to Lan Xinzhi opposite: These media outlets in the southern cities have written several articles in succession in the past few days, stating in a straight-forward manner that our Torch-C.B. Ferrari products are just re-shells of imported equipment and do not involve independent research and development at all. Even I almost believe it. At the end of the sentence, Chang Haonan''s tone had a hint of smile. He thought of the legend of the "Strategic Deception Bureau" that had been circulated on the Internet in his previous life. ?Of course, the intentions of these media must be bad. It was just a mistake and it was implemented. TMD, how could you fabricate it out of thin air... Lan Xinzhi obviously has seen too little, and does not have a deep understanding of these medias efforts to confuse right and wrong, and his tolerance is not very high. We really have no control over media matters. Chang Haonan shook his head helplessly and amusedly: However, it wont do us any harm if they continue to write like this. At least, you can confuse those foreigners who dont know whats going on, and buy us more time to develop... (End of this chapter) Chapter 554 The die forging press is under construction! Chapter 554 The die forging press starts construction! ?Under the strong care of Lan Xinzhi and even the entire Commission of Science, Technology and Industry for National Defense system, the die forging press quickly moved from the design stage to formal production and manufacturing. ?Of course, this does not mean that everything will be fine for the entire project team. When the preset state is moved to the actual operating environment during the design process, there will inevitably be some parts that require further optimization. However, for excellent and highly completed designs, the impact of these parts will be relatively small, and there is basically no need for rework. ?Most of them can be left to Yan Yongnian, the on-site commander-in-chief. On the second day after the completion of the 750MN giant die forging hydraulic press project, the first C-shaped plate raw material used in the equipment began to be cut at the Baoshan District Iron and Steel Plant in northern Shanghai. ?At almost the same time, Jiangcheng Heavy Machine Tool Factory, the main engine factory for this project, also started construction of a new workshop under the leadership of the new factory director. The dead weight of the 75,000-ton die forging press is extremely exaggerated. Considering the impact and vibration after entering the working state, the requirements for the ground conditions are very strict. Hence, a location with a specially strengthened foundation is needed to ensure stable work for a long time. As for hydraulic cylinders, pipelines, transmission systems and other components, they are also distributed to different suppliers according to their respective design standards and requirements. Mr. Chang, the production of die forging presses is basically on the right track now. This is the list of first-tier suppliers that Director Lan and I have determined so far, as well as the projects they are responsible for. ?Yan Yongnian, with two dark circles under his eyes, walked into Chang Haonan''s office and handed a file bag to the latter while reporting. In the past half month, he has been basically too busy to even have a stable sleep time. Since entering the production stage, Yan Yongnian and some engineering staff were stationed in Jiangcheng, so the entire die forging press project team entered the mode of working in two places. The situation is somewhat similar to that of Turbofan 10. But there is no online video conferencing in this era, and it is impossible for Chang Haonan to travel between two places every day while holding multiple jobs. So we had to let Yan Yongnian run back and forth. In addition, the situation of some subsystem suppliers also required him to investigate and negotiate in person. All in all, he has flown on more planes during this period than he has flown in most of his life combined. ?However, although the fatigue on his face cannot be hidden at all, Yan Yongnian is still in good spirits. After all, I am personally fulfilling the dream that I have been thinking about for more than ten years, building a die forging press from scratch. Chang Haonan opened the file bag and found dozens of documents that had been sorted and sorted with paper clips. Just like the previous follow-up investigation of suppliers, Yan Yongnians meticulousness is reflected in every aspect. Chang Haonan checked them one by one, and his mind was not idle at the same time: The localization rate seems to be higher than we expected A considerable number of these items were originally classified as need to be imported in Yan Yongnians records, but in the end they successfully found domestic suppliers. After all, this only counts first-tier suppliers. Our countrys machining capabilities have improved rapidly in the past two years. After all, I also have my own job, so a lot of information has not been updated in time. When mentioning this matter, Yan Yongnian was also very interested and explained cheerfully: Furthermore, after deepening cooperation with the EU, many new equipment that were restricted in the past have gradually been imported through various legal or semi-legal methods. In the case of machinery manufacturing, the equipment problems have been solved, and many problems have ceased to exist. The localization rate will naturally increase. The other thing is At this point, he paused for a moment: Sigh... In fact, there were rumors that the Ministry of Machinery Industry was going to be disbanded two years ago, so the morale and work efficiency within the department were affected to some extent, and many businesses related to industry coordination were also errands. "Just two days ago, Director Lan and I went on a business trip to Lianhai Hydraulic Factory to provide plunger pumps and control valves. Their factory director said that this was the first time in the past three years that a superior unit had reviewed the reports submitted by the factory. Give feedback. ? ? The company took out a loan to introduce a new production line a few years ago. It originally wanted to increase product visibility, but it turned out that its own brand could not be sold at all, so it had no choice but to do OEM work for big foreign brands. The same thing. If something is rebranded, it will immediately become a hot commodity. Those responsible for production can only earn a small amount of money. It is difficult to pay back the interest on the loan, let alone upgrade to a new generation of technology..." Fortunately, the equipment we need is not of the highest level, and their old equipment can still be manufactured. Thats all. If the Equipment Industry Department hadnt specifically re-examined past reports, we would have thought we could only import..." What Yan Yongnian said is the most direct impact of the loss of overall management of disadvantaged industries. ? Even if you catch up with the advanced level by chance at a certain time, you will soon fall behind again because you have no brand recognition, no market, no user feedback, and still cannot keep up with subsequent technology iterations. "Well... there is nothing we can do about it. On the one hand, there is a lot of internal and external pressure. On the other hand, the original Ministry of Machinery Industry does involve too many things that are not necessary to be grasped. Now it has been reorganized into the Equipment Industry Department. On the contrary, it may not be entirely a bad thing if we can catch the big ones and let go the small ones..." ?Chang Haonan waved his hand and replied with a hint of helplessness. This is not exactly to comfort the other party. The one-stop management model of the Ministry of Machinery Industry has indeed caused many problems. It is not strong enough, and it happens to be a target. It is normal for it to be unable to withstand it. Even including the National Machinery Industry Bureau proposed by the Economic and Trade Commission later, the situation is similar. After sighing with emotion, Yan Yongnian changed the topic to a slightly more relaxed topic: "By the way, I have heard many colleagues in the industry talking about your new joint venture during this period. Some people asked me to inquire about the specific performance and price of this equipment, and when the updated five-axis model will be released. equipment." This actually made Chang Haonan show an expression of distress for the first time: Because the company was established in a hurry, the official website and promotional materials are still being produced. People who buy equipment now basically contact me directly, or contact Director Lan..." Ill make it faster over there. Before the end of the month, normal purchasing channels should be online. ?In order to avoid the suspicion of forced buying and selling, Chang Haonan and Lan Xinzhi did not overemphasize the Torch-C.B. Ferrari matter. Despite this, MS45T still received nearly three-digit orders in less than a week. Mainly, Torch Group is no longer what it used to be. ??It is not very obvious in public perception, but in the industry, it is already well-known. ??Although not many people know about Chang Haonans special status in the Committee of Science and Industry, many people still know that he won three National Science and Technology Awards in February. ??Coupled with the newly established Equipment Industry Department a few days ago, Document No. 1 is to build momentum for the precision manufacturing industry. Even the new directors first public appearance was at the ribbon-cutting ceremony of this joint venture. Those who have a little bit of vision have already shown their talents and started to place orders through connections. ?? Before the company was established, C.B. Ferrari, especially Chiravadi, who was in charge of finance, was still somewhat skeptical about Chang Haonan''s suggestion to expand production scale. Mainly because in the past half century, they have been operating in the form of a precision workshop, with only 300 employees at their peak. Although the products are indeed high-end, the capital chain is actually very fragile. ??If the scale expands, but the business volume does not increase, then the company will directly face an existential crisis. ?Furthermore, he has to worry about whether Chang Haonan is planning to take advantage of this opportunity to annex C.B. Ferrari in one fell swoop? Hence, the expansion of production has been relatively slow. As a result, in less than a month, orders for 200 units were placed. ? It turns out that those people were so eager to drive screws that sparks popped out. As a result, the production speed was not as fast as the increase in new orders. It is said that even Italians have started working overtime in three shifts... (End of this chapter) Chapter 555 French fleet visits Chapter 555 French Fleet Visits ?Just when Chang Haonan was busy preparing for the production task of the die forging press. Shandong province, island city. As a long whistle sounded, three warships with flags standing on the **** slowly emerged from the early morning mist, led by a pilot boat. From the blue, white and red vertical stripes of the flag on the ship''s mast, it is easy to see that this is the French navy''s visiting fleet after a long journey and a brief visit to more than a dozen countries. The destroyer Jean Bart, the frigate Geyue and the integrated supply ship Durance. ?Several barges that had been prepared quickly drove over and helped three warships to dock sideways on one side of the pier. On the other side corresponding to the three French warships, there are two of the most cutting-edge destroyers of the Chinese Navy, the Bingcheng and Daocheng. ??Although the performance of the two Type 052 destroyers is slightly different from that of the Jean Bart, which has certain regional air defense capabilities, at least they do not suffer in terms of size. As for the Durance River with a displacement of 17,900 tons It is indeed large, but it is not a combat ship after all. ??And the Chinese Navy also commissioned the larger Nanyun 953, the Qinghai Lake supply ship, into service in 1996. Do not suffer psychologically. ??Although this ship is not in the North Sea Fleet, it still gives everyone an idea of ??the comprehensive supply ship, and it will not be like Grandma Liu who has never seen it when she entered the Grand View Garden. On the shore, several rows of honor guards have also lined up, playing military music, and are ready to welcome the visiting ships entering the port. ?Vice Admiral Laurie Vojour, the commander of the French fleet, took the lead to step down from the Durance River and saluted each other with the Chinese leader, Lieutenant General Yang Shuyu. Although both parties have the idea of ????bringing closer to each other, there have not been many similar overseas visits before this, and there were some disagreements a few years ago, so the atmosphere between the two parties was somewhat stiff when they first met. Fortunately, China has sent several groups of officers to the French Naval Academy for further training, so they are not completely out of things to talk to. In addition, before the visiting fleet arrives, a quite rich itinerary has actually been arranged, so there is no contact between them. It soon became natural. Under normal circumstances, the first item of this kind of visit is a routine visit by the crews of both sides to each other''s ships. If mutual trust is high enough, this kind of visit can even go to the bridge, captain''s room or even the Combat Intelligence Center (CIC). ??But if the mutual trust is not good enough, then the only thing you can do is walk around the ship or even the front deck twice. The navies of China and France are certainly not allies, but after all, they are friendly visits, so all non-core areas on the surface of the ships can still be opened. Lieutenant General Vojour stood on the destroyer Daocheng, looked up and looked around, and then saw many extremely familiar equipment. ?This is certainly not surprising. Except for the power system imported from the United States, most of the weapons and electronic equipment of the Type 052 ship come from France. Among them, ship 112 is basically imported with original equipment, while ship 113 has been partially replaced with domestic products. Is this a sea rattlesnake? ? Lieutenant General Vojour, who walked along the escalator to gun position B on the bow of the ship, raised his hand and patted the missile launcher in front of him and the missile box behind him. ??The Sea Sidewinder equipped by the French Navy generally uses 4 rounds on the left and right, with a fire control radar design in the middle. This made Vojour not sure about it for a while. Our model is called Haihongqi 7 air defense missile. Of course, it is technically developed from Sea Sidewinder. ?Yang Shuyu next to him explained. Importing equipment and introducing technology from other countries is a very normal process of military construction. ?There is nothing to hide about this kind of thing. If you insist on claiming other people''s things as your own, it will appear that you are not confident enough. A very beautiful warship. ? ? Vojour originally wanted to make some sarcastic remarks about the equipment level of the Chinese Navy. However, except for the anti-aircraft missiles, the antennas of this ship are almost eighty-nine times similar to the Jean Bart parked dozens of meters away. Even if the model produced by China is not as good as the French original, it is impossible for him to really let both sides try to fire a few missiles. In short, no matter what you say, it will boomerang into your head. ?So I had to give an evaluation that was neither painful nor itchy nor wrong. The group of people chatted all the way and finally walked from the bow to the stern of the ship. ?For a 4,500-ton destroyer, the hangar and helicopter deck configuration of the Daocheng are quite luxurious. ?One newly delivered Z-9C is fixed outside, and the other one is parked inside the hangar with its main rotor folded. Seeing these two helicopters, Vojour remembered the joint anti-submarine and search and rescue exercises in the next few days. ??As the former captain of the aircraft carrier Clemenceau, he has a relatively good understanding of carrier-based aircraft. ? Just after walking around for half a circle, he could tell that the aircraft was not the imported AS565 Panther, but a similar model modified by the Chinese based on the Dolphin. The lieutenant general remembered that a few years ago, someone from Eurocopter told him that although the appearance of the Dolphin helicopter produced by China was similar to the original one, the flight performance and service life were very different, especially the effectiveness of the rotor end. The output power is only about 80% of the French product. It seems that during the exercise, we can do a little bit of manipulation to make them look embarrassed..." Worru''s brain was running rapidly, thinking to himself. ?Of course, the main purpose of his trip is to get closer, so this kind of thing must be done in a certain manner. At least you can''t taunt the opponent directly, and you can''t really cause anything big. Must practice martial ethics. Perhaps we can fly an extended spiral joint search route? Worure thought about it over and over again and finally came up with a good plan. ?The so-called extended spiral submarine search is a standard submarine search flight mode that starts from the initial position and gradually expands the search range to the outer circle. At that time, we only need to slightly extend the scope and time of the submarine search, and wait until the fuel supply on China''s side can no longer support it and choose to return. ?This kind of rivalry is very common even within the same army, not to mention between the armies of the two countries. It is not excessive in any case. But the effect is very good. The most important thing is that the outcome is clear and there is no room for ambiguity. Very suitable. ?This paragraph is quite long to talk about, but the brainstorming is quick. So much so that after these thoughts circulated in Wojru''s mind, he himself made a half circle around the helicopter. Wait a minute...you brought two anti-submarine torpedoes to this helicopter? ??At the time when Yang Shuyu was on duty on the warship, the Chinese navy didn''t even have a few ships with missiles, let alone ship-based helicopters. After leaving the front line, his work did not involve the construction of naval aviation equipment, so although he knew something about it, he was not particularly specialized. Just think of it as a casual question. Yes, two torpedoes and sonar. ?While answering, I was still thinking, this helicopter should also be a domestically produced French model. How come you, a French lieutenant general, dont know as well as I do... In fact, according to the performance calibration of the new Z-9C helicopter by Bingfei Group, it can choose to carry dual torpedoes + suspended sonar, or a single torpedo + suspended sonar + sonar buoy. A combat radius of no less than 30 nautical miles can be maintained under both mission loads. ??It has exceeded the range of most submarine wire-guided torpedoes, which is considered sufficient. However, the Chinese Navy does not have sonobuoys at all, so the latter configuration is naturally rarely used. ?Wurru, who knew nothing about it, just nodded calmly. ?According to his experience, if the AS565 is equipped with dual torpedoes and suspended sonar, the effective combat radius will not exceed 15 nautical miles, and it will even be difficult to enter hover. And this imitation model is obviously only worse. ??If the Chinese Navy is prepared to participate in exercises like this later, then his plan should go quite smoothly... Looking forward to our joint exercise in a few days, I hope you can put on a wonderful performance. ??After returning to the dock, Wojruer said to Yang Shuyu. The latter was a little confused by this sudden sentence, but still responded politely: We look forward to it too. (End of this chapter) Chapter 556 Joint anti-submarine exercise! Chapter 556 Joint Anti-Submarine Exercise! ??The French fleets visit lasted quite a long time. After all, we came here with the mission of bringing the two parties closer, so most of the activities actually took place ashore. By the time the two sides conducted joint exercises, it was already the afternoon of the fourth day of their visit to Hong Kong. Originally, if we put it aside a year or two ago, like the relatively delicate relationship between China and France, the so-called joint exercises usually meant each sending a ship out to engage in fleet navigation, or light semaphore signal training, etc. No nutritional content. Generally, it is even carried out on the way back from the port to the visiting formation, and the guests are sent off directly after the end. However, in the past year, thanks to previous cooperation opportunities, the relationship between the two countries has developed rapidly. Therefore, after the French took the initiative to conduct more in-depth and larger-scale exercises, our military also took advantage of the trend and gave a positive respond. On the other hand, of course, our military does have a serious lack of experience in anti-submarine warfare. Considering that many of the navy''s current advanced anti-submarine equipment and technologies come from France, it is obvious that a lot of experience can be gained by conducting a joint training directly with the French army. ?With the sound of a whistle, the Daocheng and Jean Bart, participating in the exercise, unmoored and set sail one after another. ?Multi-ship and multi-aircraft collaborative exercises are quite high-level content. The two militaries have not conducted similar cooperative training before, and it is impossible to increase their intensity from the beginning. ??Although the Kagetsu-class, with a displacement of less than 3,000 tons, can carry a helicopter, the ship itself does not have reliable submarine search capabilities. As a second-class colonial frigate, it is not designed to undertake anti-submarine missions. Hence, in the end, both sides only sent one destroyer of similar size to participate. Anti-submarine drills are naturally impossible to conduct near shore. Whats more, the water depth in most places near the Yellow Sea is so shallow that real submarines would be visible to the naked eye, and even underwater false targets simulating submarines cannot be arranged. Therefore, the ship formation sailed southeast for several hours before reaching the preset exercise sea area. ?According to the plan, the false target in the submarine search subject will be coordinated by a 033 diesel-electric submarine, while the target in the submarine attack subject will be an underwater target that makes noise but has no autonomous navigation capability. Joint exercises focus on joint exercises and generally do not set any subjects that are too difficult. Otherwise, it will be very embarrassing if one party fails to learn and play well. (Here @The South Korean Navy failed to dock independently multiple times during a certain Rim of the Pacific joint military exercise) The prototype of the 033 submarine is the Soviet Type 633, which is essentially a modified Type XXI U-boat. As a kind of naval equipment, it was already outdated in 1998 and had almost no actual combat value. There was no need to worry about troubles such as leaking voiceprints. And a submarine of this type is easily detectable unless it remains stationary underwater. As an old submarine, its battery does not support long-term underwater navigation. In short, there is almost no situation where the target cannot be found. At most it will take a little longer. It can be said to be a very perfect imaginary enemy. After entering the exercise sea area, the two ships quickly followed the previous arrangement, changing from traveling longitudinally one behind the other to traveling horizontally one to the left and one to the right, and kept a relatively long distance from each other. ?This is mainly because the four sets of diesel engines of the Jean Bart are relatively noisy. If the distance is too close, it will have an adverse effect on the gas turbine-powered Daocheng. Release the towed deepening sonar. ?In the CIC of the Daocheng, the new captain Luo Zhangming sat in front of the command podium and gave the order calmly. Sonar release completed! After receiving the report, he continued to give new instructions: Send helicopters to establish an anti-submarine patrol line. The starting point is the 340 direction of the ship and a distance of 10 nautical miles. In modern ships, every command issued in the CIC can be directly transmitted to the corresponding cabin. Therefore, the aviation department, which had already been prepared, quickly pushed one of the helicopters out of the hangar and completed the mounting of an anti-submarine torpedo in the shortest possible time The costs of torpedoes (even mines without warheads) and false targets are very high, so only one is expected to be launched during this exercise. A few minutes later, two helicopters with quite similar appearances took off from the Daocheng and Jean Bart respectively and rushed to the corresponding positions on the side and front of the route to start submarine search operations. Earlier, when the Type 052 destroyer was being designed, the Navy had considered using a two-machine collaboration mode with a torpedo for submarine attack and a sonar for submarine search to extend the anti-submarine warfare radius of the ship-based helicopter to the extreme. The twin hangars on the 052 were designed for this purpose. But after trying it a few times, I found that the result is often 1 plus 1 less than 2. Later on, we honestly returned to the way of carrying out sonar and torpedo missions in different areas or time periods. Of course, the French are responsible for the submarine search on the other side today, so the second helicopter does not need to be dispatched for the time being. ?Although the target sea area designated for the exercise is not small, considering that the target of the submarine search is only a Type 033, there should not be a lot of pressure. At the same time, more than ten nautical miles away. ?The Great Wall No. 298 submarine is sailing slowly at the depth of the snorkel in accordance with the planned plan before departure. Fill the ballast tanks with water, dive to a depth of 70, and shut down the power system. ?Ma Jie, the captain, wearing only a vest and shorts, stood in the middle of the command cabin and issued a series of instructions with a stopwatch in his hand. Captain, if you turn off the power system, will they not be able to find us? The deputy captain Liu Changlin next to him looked a little worried. One of the advantages of conventional submarines is that they can completely shut down their power systems and emit no noise, making them immune to passive sonar searches. Two warships and three helicopters have demarcated the sea area in advance. If they cant even find us, Luo Zhangming might as well go home and farm. Although Ma Jie must perform the imaginary enemy mission assigned by his superiors, as a submarine officer, his last bit of dignity requires that he at least not keep the snorkel open and buzzing all the way when he knows that the two destroyers are "hunting" him. diesel engine roaring. ??Everyone knows that this kind of joint exercise has a strong performance component, but even if you are an actor, you still have to show some acting skills. A few minutes later, Great Wall 298 followed the captains instructions and entered a state of complete silence at a depth of 70 meters. ?Above the water, the two helicopters have also arrived at their predetermined locations. During the working process of hoisting sonar, the helicopter needs to maintain a hovering attitude and cannot search while moving forward. Therefore, the efficiency is not as high as expected. Anti-submarine operations are often carried out according to the jumping method of moving forward while detecting point by point. ??In the command center of the Jean Bart, Vice Admiral Laurie Vojour was paying attention to the movements of the two helicopters on the radar chart and secretly counting the time in his mind. As a senior general who was once an aircraft carrier captain, he is very sensitive to time and can even estimate the time accurately within 5 minutes without a stopwatch. ?Wuruer was originally going to see how long the dolphins imitated by China could last in submarine search operations at a distance of 10 nautical miles. ?But soon, he discovered that something was wrong. ??The initial movements of the two helicopters were almost completely symmetrical, but as the number of detection points continued to increase, differences gradually emerged in the rhythm of the submarine search. Colonel. He looked at the captain next to him: Have you noticed that their helicopters take longer to hover than ours? ??As the captain of an anti-aircraft destroyer, Colonel Eric Bernalli was not proficient in anti-submarine warfare, so he did not immediately get the intention of his superiors. He just nodded with some confusion: You noticed it, maybe its because the people in charge of submarine search operations are not skilled enough? Worure waved his hand helplessly: That may be true, but what I mean is that their helicopters hovered for 90 seconds at the shortest time and 140 seconds at the longest time. What is the longest hovering time of the AS565 helicopter on your ship under standard anti-submarine load? He has been out of the Navy''s front-line position for some years, so he is not very clear about the specific parameters of the new equipment. Colonel Bernalli looked at the aviation officer next to him. The latter spoke quickly: 120 seconds, because the engine can only continuously output take-off power for 120 seconds at most. Hearing this answer, Lieutenant General Wojru felt a little uneasy in his heart. ?His previous plans were based on the fact that the flight performance of the Chinese Navy''s helicopters was slightly worse than that of the AS565 prototype. but The reality seems not to be entirely like this... (End of this chapter) Chapter 557 Mysterious target from underwater Chapter 557 Mysterious Target from Underwater While the three of them were talking, the two helicopters conducted the next round of hovering searches. Lieutenant General Vojour took out a watch for the first time and used it to keep time. But the result is not much different from his previous mental calculation: Same as last time, another 140 seconds. There was a bit of disbelief in his tone. The so-called "flight performance" may include many parts, but for helicopters, hover time is definitely a very important indicator. ?This is quite different from what Eurocopter technicians said before. ?However, the facts are before our eyes. Neither radar signals nor time can deceive people, so there is no reason for people to disbelieve them. He closed the cover of his pocket watch with a click, raised his head again and said: This shows that their helicopters can hover longer than ours. By now, the other people sitting around the command podium should have understood what the lieutenant general meant. The hovering time of the AS565 is short, mainly because the continuous output power of the engine is insufficient under anti-submarine loads, and it must be increased to take-off power to maintain hovering. The aviation officer naturally knew the most about helicopters. After thinking for two or three seconds, he was the first to make a guess: So, maybe they replaced it with a more powerful engine. In fact, there are shortcomings in the transmission system of the original French Dolphin series helicopters. Simply increasing the engine power will not only fail to increase the actual power output, but will also be counterproductive. But this is something that only Eurocopter (and of course Icefly Group now) knows, and users do not know the details. So the first thing he thought of was naturally power upgrade. Or at the expense of engine life, a longer take-off power output time is unlocked. Another person then added: Generally speaking, in order to ensure safety, a certain margin will be left when performing performance calibration. After all, the aircraft is produced by the Chinese people. Just adjust the flight control program to unlock some performance limitations. ?Both guesses made the lieutenant general relax a little. Whether it is a more powerful engine or a more extreme working state, it means greater fuel consumption. In other words, although it is quite different from what I expected at the beginning, at any rate, I should be able to manage it in the end... right? ??Wuruer turned his attention back to the display screen in front of him. ?Due to the different rhythms of advance and point-by-point detection, the two helicopters at this time had a relatively obvious difference in position, and were about to fly to the other side of the sea area designated for the exercise. Have you not found the target yet? He subconsciously raised his hand to wipe his forehead, but found that he was not sweating. In early April in mid-to-high latitude waters, even if the air conditioner is not turned on, the cabin temperature above the ship surface is relatively suitable. We have no reports of suspicious signals from either side. Could it be... The aviation officer shook his head. He seemed to want to say something more, but he was interrupted by a radio operator sitting not far away: Pilots reported that they could last up to 10 minutes before needing to return. Let the aviation department prepare to replenish fuel and prepare for the second takeoff. Of course, Captain Bernalli didnt know about Vojuls brainstorming a few days ago, which he thought was a sound plan, and he just issued instructions as usual based on the situation during normal training. But Wojru, who was sitting next to him, broke out in a cold sweat. ?According to his thoughts from the past two days, the plot should be that the opponent''s helicopter could not hold on and requested to return first. To this end, when planning the plan the night before, he specifically rejected the Chinese proposal to separate the two projects of submarine search and submarine attack, with an interval of one hour in between. But he didnt want to mess around, he had planned everything step by step Because the 113 ship has double hangars, it can carry two anti-submarine helicopters. So even if the first one returns early, the second one can take off to take over the mission. It can earn face for oneself without interrupting the exercise and making it impossible to continue. At the end of the day, everyone is here to enhance relationships, not to ruin things. It''s normal to compete with each other, but it''s not good if you lose. Who would have thought that in the end, after all the calculations, it would end up being a trap for oneself. There is no second helicopter on the Jean Bart. If it returns midway, it means that the anti-submarine activities on the right front of the fleet''s sailing direction will be interrupted. ?That is not a matter of losing one person. But their aircraft hovered longer than ours...how is that possible? ?Surprised, Vojour recalled the conversation he had with Flamel before setting off. ?At that time, he also thought that he could help fellow villagers promote French helicopter products. ?Looking at it now, are you still promoting products? Its just embarrassing to spin around in circles. ??And its still humiliating oneself. The Chinese people opposite me didnt do anything, maybe they didnt even know anything, they just watched a good show. "No, when I go back, I have to bring this matter up no matter what." Worruer secretly gritted his teeth and made a decision in his heart. ?If this was the case, he probably would have endured it. After all, it was not an honorable thing. But now everyone is using similar helicopters, and others, China, still buy the technology from your Eurocopter company. In the end, the performance is better than what we use ourselves? Want some face? ??Does your Eurocopter company seem a bit suspicious of Tonghua? ??Worruer, who was a little annoyed and angry, was thinking more and more freely, and his expression became a bit gloomy. Others in the CIC on the same ship noticed that their leader was in a bad mood, but they looked at each other for a few times, and no one understood why he was so angry. After all, Warruer himself was responsible for connecting with China regarding the exercise plan. Fortunately, the solemn atmosphere did not last long. "Report, the Chinese Navy Ship 113 sent a communication. They have searched for a suspicious target, located near the opponent''s 350 direction of the ship and 20 nautical miles." A correspondent who was responsible for communication between the two ships suddenly turned around to report. There is naturally no data link system between the Chinese Navy and the French Navy. Being able to convey messages across languages ??without making mistakes is considered a tacit understanding. Fortunately, the staff officers on the French side were of good quality and marked the position on the chart almost as soon as the correspondent finished speaking. Is this goal setting so extreme? The people of Vojur are all numb. Generally speaking, this kind of exercise will not be difficult for participating warships, so the target will be placed relatively in the middle, and it will be done in one go. But the target given by the Chinese was almost located on the westernmost side of the preset exercise area. Let the helicopter fly over and use the buoy to conduct a precise search. ?Although he thought that the Chinese were a bit unethical, the lieutenant general breathed a sigh of relief and ordered the helicopter to rush over quickly. At least there has to be some sense of participation. ??Moreover, a helicopter is much more fuel-efficient when flying than in a hovering state, and the range pressure is much smaller than the submarine search process of constantly changing altitudes and performing short hovers. at the same time. On a Chinese Navy ship-borne helicopter 20 nautical miles away, four crew members were thinking exactly the same thing as Vojul. The reason why each hover took longer than the French on the other side was, of course, not really due to lack of proficiency, but the difference in the anti-submarine training methods of the two warships. ?In the French naval fleet, there will be Big Lynx helicopters with better performance and even Atlantic fixed-wing anti-submarine aircraft responsible for submarine search missions. Therefore, unless the detailed location of the target has been determined and ready to be attacked, the Panther helicopter will only use the passive monitoring mode with better concealment to avoid alerting the enemy. The 052 destroyer is one of the only two warships in the Chinese Navy with modern anti-submarine capabilities. It must be able to search and attack submarines, so every time the Zhi-9C hovers, it will first passively detect and then conduct active search. It will naturally take longer. The reason why we were able to find the current target was that we discovered an extremely weak signal anomaly during an active search, and then deviated from the preset route and tracked it all the way here. ??But as the distance gradually got closer, the passive mode of the suspended sonar gradually began to detect some weak sound signals, indicating that the other party was not in a completely silent state with the power system fully turned off. What did the ship say? ??The sonar operator in the back leaned over and asked the co-pilot on the right front. The cabin noise of this new helicopter is much lower than that of older models, and they can even communicate through normal volume instead of roaring. The French helicopter will arrive in five minutes. They have several sonobuoys and the monitoring area will be larger. "But speaking of it, those people in the submarine force are really a bit inappropriate. They knew it was a joint exercise and still stopped at such a nook and cranny. If it weren''t for good luck, they would have missed it." The co-pilot complained somewhat helplessly. "actually" The operator took a deep breath and said in an uncertain tone: I dont think this target looks like a 033 "ah?" The aircraft, which was in a hovering state, shook slightly. I have dealt with 033 too many times. As long as this boat is moving, the noise can be heard dozens of sea miles away. It will definitely not be like this. ??The operator looked at the not-too-obvious voiceprint on the circular screen in front of him and said. (End of this chapter) Chapter 558 Confidence in domestic equipment Chapter 558: Confidence in domestic equipment Earlier, on the other side of the exercise area, slightly closer to the middle. Underwater. In the command cabin of the Great Wall No. 298 submarine, it was as quiet as death. In fact, no submarine search equipment is sensitive enough to detect conversations in a submarine. The prohibition of talking in a silent state is just an exaggerated description in some literary works. But in a pre-war situation, it is indeed necessary to ensure that there are no unnecessary conversations in the command module. Captain Ma Jie lowered his head and looked at the stopwatch in his hand. After completing one revolution, the minute hand on it was about to reach three-quarters of the dial for the second time. This means that nearly 1 hour and 45 minutes have passed since their dive. ??Although as an "imaginary enemy", the Great Wall 298 boat entered the exercise area earlier than the two warships, the waiting time was too long. Captain, isnt this right? The participating fleet should have been here a long time ago, right? ??Yang Shan, the political commissar who was also wearing cool clothes next to him, said softly. ? ? When a conventional submarine is completely silent, the battery can last about 8-10 hours underwater, so it will not encounter the problem of insufficient energy. However, according to the exercise plan set before the voyage, the submarine search process should only last for about 20 minutes at most. What''s more, they almost parked the submarine slightly east of the middle of the predetermined sea area, without sitting on the bottom. ??As long as there is an active sonar coming over, the target should be found. At that time, just struggle a little and then float up. But after such a long time, nothing seemed to happen around me. We didnt make a mistake in our positioning, did we? ?Vice Captain Liu Changlin immediately thought of the worst possibility. ??Now is the critical stage before he is promoted to trainee captain. If he makes such a big mistake in a foreign joint exercise, he basically can''t expect any development. How is it possible? The sextant I personally saw is absolutely correct. ??The captain frowned and denied. ??Yang Shan also felt that the deputy captains idea was too out of tune, but it was not a problem to hold it underwater like this all the time, so he suggested: How about we go up to periscope depth and have a look? After finishing speaking, he added another sentence: Its been such a long time anyway, even if we get found, we wont lose anyone. ?Ma Jie lowered his head and thought for a moment, and felt that Yang Shan was right. Drain the ballast tanks and float to periscope depth! A few seconds later, the reply came: The ballast water tank has begun to drain and is floating! Using a compressed air bottle to inflate the float is a relatively quiet method. However, on the old submarine 033, you can still hear some humming sound of drainage. For modern high-performance sonar, this sound is still relatively easy to detect. ?But in this case, it doesnt matter that Ma Jie was discovered. Periscope depth has been reached! ??As the boat operator''s report came. Ma Jie strode to the search periscope at the front of the command module, held the operating handles on both sides, and put his forehead against the eyepiece gasket. The 033 submarine is theoretically equipped with H/SQ2-262A sonar, but this thing only solves the problem of availability. In fact, unless another 033 or similar old ship is sent to the opposite side, it will be difficult to hear anything useful. So usually the most effective reconnaissance equipment is the optical periscope. The captain still remembered that when he dived before, the bow of the boat was pointed to the west, which was the direction of the fleet''s sailing. ??However, after half a week of searching, he still could not find any trace of the two destroyers. ?Ma Jie felt a little strange and switched to the air search channel again. Sure enough, I saw an anti-submarine helicopter in mid-air. ?However, unlike what he imagined was flying towards him, the target became smaller and smaller in his field of vision, and soon disappeared directly from the skyline. Old Ma, whats going on? ??Yang Shan and Ma Jie have been partners on the Great Wall 298 boat for some years, and they are very familiar with every move of the old man. Seeing the latter holding a periscope and looking in the same direction for a long time, he also felt that something was wrong. The latter took a step back and returned the periscope to its original position: I saw the submarine search helicopter gain altitude and fly away very quickly. "ah?" Generally speaking, if an old submarine like the 033 is really tracked nearby by a modern anti-submarine unit, there will be basically no room for a comeback other than sitting on the bottom and waiting for a miracle. ?But just now they did not hear the sound of the sound waves emitted by the active sonar hitting the side wall of the submarine. ??The three members of the command team looked at each other, and they all saw a bit of confusion in each other''s eyes. Logically speaking, as the imaginary enemy in the exercise, they should face the joint strangulation of surface ships and helicopters in this case. But now it seems that the whole world has forgotten them. Navigating in snorkel status, maintain current course, advance two. ?Ma Jie took a deep breath and gave the car clock command to start the main engine: Go and see what theyre doing. ??Just when a few people in the submarine were completely confused, the CIC on the Daocheng ship was already very busy, and indeed no one cared about there being one of their own submarines in the exercise area. ??Originally, when they just received the news that the helicopter had discovered the underwater target, everyone just regarded it as a normal acting process, and followed the previous arrangement and called for the Barr to go for reinforcements. ?Although the performance of French military helicopters is not as good as that of the upgraded Z-9C, the several active and passive sonobuoys on board are still very effective equipment for searching for submarines in a large area. ??China agreed to arrange joint anti-submarine exercises this time, and also had the purpose of examining how developed countries use sonobuoys. ?However, before everyone could breathe a sigh of relief, another shocking news came from the helicopter. The sonar operator of unit 9686 reported that the detected target characteristics were not Type 033 submarines. The radio operator''s words instantly made the atmosphere in the cabin become solemn. ??Yang Shuyu, who was joking with the captain, instantly sat upright. Can you determine the ownership of the target? Captain Luo Zhangming was the first to ask. ??Yang Shuyu was the Chinese commander-in-chief of this joint exercise, but the situation at hand was obviously beyond the plan, so the command authority defaulted to the captain who was more familiar with the ship''s situation. No. 9686 said it is not possible yet, but it should be a conventional submarine that is not very large. They are continuing to track it. Luo Zhangming''s brain was running rapidly. The only conventional submarines that can appear in the East China Sea, apart from our military, are South Korea or Japan. ?? Today''s joint military exercise, because it involves the use of weapons, must publicly notify the scope of the exercise in advance. The Type 052 is Chinas most advanced surface battleship currently. ??It is normal for some underwater villains to sneak around and try to collect some information. Confirm, how long can No. 9686 last? ? In the past, the Daocheng was equipped with two AS565 anti-submarine aircraft that were exactly the same as those of the French army. According to Luo Zhangming''s experience, the fuel would basically be exhausted by this time. As for anti-submarine, if the search pressure cannot be sustained, it will be difficult to find the opponent once he runs away in a certain space. The pilot said he should be able to conduct a submarine search mission for 15 minutes before returning home. The radio operator reported something that shocked Luo Zhangming: Can we still fly for 15 minutes? ??The naval ship force and carrier-based aircraft force are organized separately and are only together when they go to sea to perform missions. These two Z-9Cs were both delivered at the beginning of the year. Originally, he was a little worried about the performance of the domestic models. But now it seems that the performance is better than the original one... At this time, the naval aviation officer next to him interjected appropriately: When the Z-9C was delivered before, according to the technical manual given to us by the Ice Aircraft Group, the range and take-off weight were indeed much better than the imported AS565. As if to confirm this statement, the liaison officer responsible for communication between the two ships immediately reported: The Jean Bart contacted us and stated that their helicopter needs to return after launching the sonobuoy, and it will take at least twenty minutes to prepare before taking off again. Obviously, Luo Zhangmings judgment just now was correct. This newly delivered domestic model indeed performs better than the original one. At this moment, he was suddenly full of confidence in the new equipment in his hand. For a new piece of equipment, especially domestically produced new equipment, it takes a process for commanders and fighters to go from being able to use it, knowing how to use it, to daring to use it. Generally speaking, this confidence needs to be achieved slowly during use and training. Only this time, due to the stark comparison with the French army next door, the process was completed in one step. As a result, a bold idea gradually formed in my mind Allowing a submarine in submersible state to come within 20 nautical miles of the fleet in exercise state can already be said to have shown considerable hostility. After all, this is already within the range of quite a few anti-ship torpedoes. ?Furthermore, if it were not for some mistake and the helicopter used active sonar to search for a location near the border, they might have succeeded. Therefore, this sneaky opponent must be taught some lessons, otherwise he may have to push further next time. But having said that, this is not a territorial waters area after all, and it cannot really be sunk by others... Notify the aviation department... to prepare for the flight of aircraft 9696. ?Luo Zhangming organized his thoughts and quickly issued combat orders: Also, hang two torpedoes and go out. One live bomb and one mine! (End of this chapter) Chapter 559 Hunting the Maritime Self-Defense Force! Chapter 559 Hunting the Maritime Self-Defense Force! After giving this order, Luo Zhangming glanced at Yang Shuyu who was sitting next to him with some worry. Take off with live ammunition, and in non-territorial waters. In fact, there are still certain risks. Seeing that the latter was looking down at the chart in front of him, and did not stop the staff officer next to him from sending the order, he was relieved. ?It wasnt until the series of instructions and replies came to an end that Yang Shuyu asked: If two rounds of ammunition are mounted at the same time, will the mission execution time be affected? Also, if you can finally catch the other party, how are you going to deal with it? As a senior commander who has been away from front-line command positions for some years, he needs to control the command of the ship very accurately. Neither interfere too much with the captain''s command and dispatch as a professional, nor interfere too roughly, affecting the captain''s authority in the minds of the commanders and fighters on the ship. But at the same time, it must also serve as a stabilizing needle to ensure that the situation is within control. Facing the question of the deputy commander of the Navy and the pressure from unidentified foreign submarines, it is impossible not to be nervous. Luo Zhangming took a deep breath: "Based on the experience given by the aviation department before, the new helicopter will not have any impact on the basic flight performance in the manual with the standard mount of two radars and hoisting sonar, and it can also ensure that it can complete a mission within a combat radius of 50 nautical miles. Standard submarine search-submarine attack process. In fact, he had heard these data from people in the aviation department before. But in the past, the actual performance of the Chinese Navy''s equipment was always at a discount compared to what it looked like on paper. So I have never dared to push the performance too far. Until that moment, he suddenly felt confident. So in accordance with the standards of the technical manual, we chose to hang an extra live ammunition to deal with various possible emergencies. As for what to do if you find the other party ?Luo Zhangming hesitated for a moment, and then replied firmly: "Although this is not territorial waters, it is also our exclusive economic zone. In any case, if the submarine runs to our pre-demarcated exercise area while submerged, it is a naked provocation. Therefore, I think we must at least force the other party out of the water. No!" On the flight deck, after the first helicopter took off, the second helicopter No. 9696 was already preparing to take off just in case. ?? Now after receiving the new order from the captain, it is only necessary to mount another A224 torpedo live ammunition. ?This kind of torpedo was imported from Italy in the late 1980s to fill the vacancies before the Yu-7 torpedo entered service. There are only 40 in total, which is very valuable. The friendly aircraft is located in the direction of our ship, 20 nautical miles away. We need your aircraft to support us quickly. The voice of the flight controller came from the radio equipment of the three crew members: Let me emphasize again, this is not an exercise, there is no plan, and there is no predetermined sea area. Use your special skills. Dont let the target escape under any circumstances! "yes!" The three of them answered in unison. A few minutes later, the helicopter took off and flew quickly towards the direction of the two warships. Meanwhile, about 20 nautical miles away, beneath the surface. The captain of the submarine SS588 Winter Tide, Second Class Haizawa Yoji Hayakawa, was in the command module, his eyes fixed on the display control screen of the ZQQ-5B digital sonar system in front of him. Compared with the old sonar, which can only detect and analyze targets by the sonar operator''s ears, the latest digital sonar can more intuitively display the environmental data captured by underwater acoustic equipment like radar. ?However, now, Captain Hayakawa actually does not need this advanced equipment, because even with just his ears, he can hear the sound waves from active sonar hitting the submarine shell. For submarine officers, this sound is almost a death knell. ?According to the results of sonar analysis, the sound source location should still be about 15 nautical miles away. Winter Tide has quite advanced anechoic tiles laid on its surface. At this distance, the hoisting sonar used by ordinary helicopters is not enough to accurately detect this silent submarine. But if this continues, as the other party''s search range expands, it will only be a matter of time before it is discovered. ? Another troublesome thing is that in order to better collect hydroacoustic data, the Winter Tide aimed its bow at the two destroyers head-on. Now this awkward position makes it difficult to retreat. Captain, sonar has detected a surface target using a medium-speed diesel engine about 40 nautical miles away. It is approaching us at a speed of 25 knots. In addition, about 55 nautical miles away, there is a louder underwater target, like a train, but it is not fast and should not pose a threat to us in a short period of time. The first mate of the boat, Kenjiro Hayashihara and the third class Kaizuo, reported not far away. The diesel surface target should be the French Navy destroyer. ?Hayakawas face was gloomy, but his tone was quite calm: This target itself is not a big threat, but unfortunately, the noise of the diesel engine completely covered up the sound of the gas turbine of the other destroyer with it..." ??The purpose of the Dongtide''s voyage this time is to lurk at the edge of the exercise sea area designated by China and wait for the opportunity to collect as much target information characteristics of the Daocheng destroyer as possible. This is actually an order from the Seventh Fleet. ??However, it is difficult for a huge nuclear submarine to be deployed in the East China Sea, where the water depth is relatively shallow. The task naturally fell on Hai Zis head. Captain, are we going to sit on the bottom, or... ?Compared to the experienced Hayakawa, First Officer Hayashihara joined Haizi in 1992 and had never experienced a battle of wits and courage with the Red Navy. Naturally, he was a little panicked when encountering this situation. The former shook his head slightly: "Don''t be in a hurry to sit down. The two destroyers will not arrive nearby for almost an hour. We have to maintain our mobility." "Calculating the time, the helicopter above us now should be about to run out of fuel and return. There may be another one coming to take over. But before I set off, I studied the French-produced helicopter. In the submarine search state, Cant hold on for long. "When the two helicopters take over the mission, we first turn the bow of the boat 90, and then when the second helicopter returns, they will have a window for searching for submarines. At that time, we can leave at full speed. " The battery of the Winter Tide can support the submarine to sail at an underwater speed of 22 knots for more than an hour. Thanks to the excellent appearance design and low-noise propellers, the submarine can ensure extremely high quietness when using the battery. Enough to leave this relatively dangerous sea area. ?Hayakawa''s calm speech restored the calm and orderly atmosphere in the entire command module. ?Although generally speaking, submarines have little ability to resist the anti-submarine mode of ship-to-aircraft cooperation, but in the 1990s, the technical level of the Japanese Sea surpassed the Chinese Navy by so much that a tie seemed... Its not unimaginable. What excites the crew of the Winter Tide even more is that Hayakawa''s timing is very accurate. During a significantly longer sonar detection interval than before, the submarine finally completed a difficult 90 turn. Next, all we have to do is wait until the second helicopter runs out of fuel and the next time window appears. It should be said that there is nothing wrong with Hayakawa Yojis plan on paper. ?However, he didn''t know that the first helicopter that had just left had already been conducting a submarine search for a period of time before tracking him. So, there were some problems with rhythm control... "Captain, 20 minutes have passed. Why does that helicopter... not have any intention of retreating?" As time passed by, the command module, which had just regained its composure, became tense again. ?In the extended spiral submarine search mode, the helicopter''s current position is only about 10 nautical miles away from them. In principle, the ability of hoisted sonar to judge the direction of a target is relatively weak. If there is only one helicopter searching for submarines, even if the distance to the target is discovered using active mode, it often requires multiple measurements to finally determine the specific location. But 10 nautical miles is really a bit too close. ? Even Hayakawa himself gradually began to doubt his previous judgment. Captain, if this continues, the opponents destroyers will get closer and closer... The first mate''s voice sounded next to him again. ?Compared to ship-based helicopters whose air time is ultimately limited, conventional submarines will lose if they are entangled by surface ships. There is almost no other way than to surrender. Hayakawa originally wanted to find the safest way to leave, but the opponent''s helicopter stayed in the air for far longer than expected, which made all previous plans come to nothing. Under tremendous pressure, he finally changed his mind: Start the battery and maintain a speed of 4 knots. ?However, this decision was made a little too late... ?Above the water, the French AS565 helicopter, which was the first to return to replenish its losses, returned to the mission area. Although there is no data link, the pilots of the two countries can still communicate in awkward English through the most basic radio. In fact, aircraft No. 9696 has detected the existence of a target about 8-10 nautical miles away, but it has never been difficult to determine the direction. Therefore, the Chinese sonar operator who waited for 20 minutes and finally waited for support asked the French helicopter to drop another wave of sonar buoys. The latter was completely unaware of the situation and still thought it was part of a normal exercise, so naturally he did as he was told. They even brought a few extra buoys with them during takeoff this time, trying to save some face for returning early. "Look at these Chinese people. Although their naval equipment is not advanced, the content of the exercises is so realistic..." The pilot of the AS565 helicopter said with a slightly emotional tone while launching the buoy in a circular route. The co-pilot next to him also agreed: Yeah, its even more like an actual battle than a NATO joint exercise. When I was talking to them on the radio just now, I felt a tense atmosphere. It seems that after the end of the Cold War, our navy has been too relaxed, and many exercises are just a formality..." It must be admitted that, at least in terms of exercises, we have completely underestimated the seriousness of the Chinese people... ?Although active and passive sonar buoy arrays lack accuracy and sensitivity, thanks to the fact that many are thrown out at one time, the search efficiency is far higher than that of suspended sonar. Soon, the French sonar operator discovered an accelerating target at a depth of about 60 meters underwater. ?Two helicopters quickly rushed in that direction... On the underwater Winter Tide, Captain Yoji Hayakawa knew that things were going to be bad when he heard a total of eight things entering the water. Sure enough, within a few seconds, sound waves from several directions hit the surface of the submarine. ?Now, I cant hide it no matter what: Quick, move forward at maximum speed! The ballast tank is filled with water, and the diving depth increases to 100 meters! Also, put the unmanned underwater vehicle (UUV) out and use decoy mode! ?Following his order, a small unmanned submarine fixed behind the hull of the Winter Tide broke away from the mothership and then headed in another direction. Because the decoy mode was turned on, its propeller left a long series of air bubbles behind it. ?While attracting sonar attention, it can also have a certain shielding effect on the mothership itself. Sure enough, the sonar operator on the French helicopter quickly lost his original target. The Chinese also arranged submarine decoys in the exercise? The three French soldiers on the helicopter were already a little doubtful about life. But no matter what, today is here. The dignity and face of soldiers require them to fight this "imaginary enemy" to the end. ?After a brief communication via radio, the two helicopters began to use hoisting sonar simultaneously to conduct submarine search operations in accordance with the circular search mode of dual-machine collaboration. ?Not long after, the third helicopter, the returning No. 9686, also joined the search team. In this case, the bait, which does not have a long action time, naturally cannot always guarantee the safety of the Winter Tide itself. ??The sound waves emitted by active sonar are like beating gongs and drums, resounding in the ears of the entire submarine crew. 100 meters underwater, this scene is definitely like a horror story. ?Hayakawa still wanted to use up the last bit of battery power. ?But he soon heard the heart-stopping payoff. 3 nautical miles, the projectile entered the water, the speed was 30 knots! Everyone knows that this is an anti-submarine torpedo. Before anyone could react, they heard a sound far louder than any previous sounds, as if a gong was hitting their ears. Captain Hayakawa shivered, and it took him a while to realize the source of the sound The torpedo struck, but did not explode. It should be a mine. Even so, the moment the sound rang out, some people with poor psychological quality fainted in the command module of the Winter Tide. ? Hayakawa couldnt guarantee that if he persisted in not refloating, the next time he dropped it would be a live ammunition. Furthermore, the battery capacity is no longer optimistic. What a bunch of lunatics ?Hayakawa sat slumped in front of the podium: Float, float immediately! (End of this chapter) Chapter 560 successful anti-submarine warfare Chapter 560 Successful Anti-Submarine Warfare A completely black submarine slowly emerged from the water. Then, less than two nautical miles away from the nearest helicopter, the bow of the boat rushed out of the sea first, and then slammed into the water, splashing a burst of white waves. . This is the power-floating attitude of a submarine in an emergency, similar to the climbing process of a fighter jet. Compared with relying solely on buoyancy, this process is much faster. The three Frenchmen on AS565 stared dumbly at what was happening in front of them. ??The pilot was so shaken that he almost sent the crew and the plane away: Is this a Chinese submarine? ?The conscience of heaven and earth, he is just a helicopter driver. Not even dedicated to flying anti-submarine helicopters. In addition, since the French navy was driven away by the equally powerful Vietnamese, it has hardly been to Asian waters. It is normal to not recognize these submarines that seem to be similar at first glance. Actually, a few minutes ago, he had already realized that something was unusual. ?Although the mine does not have a warhead, it may still cause some malfunctions if it directly hits the submarine. Furthermore, in the exercise plan, submarine attack and submarine search are also separated. As a result, just as they reported their position, they saw a torpedo being dropped... No matter how close the exercise is to actual combat, it shouldnt reach this level, right? Now this submarine suddenly emerged, which has deepened this ominous premonition. Wrong, ten or even nine points is wrong. The anti-submarine sonar operator sitting behind him was completely confused. Compared to the two pilots, he is the one who is really responsible for anti-submarine warfare. So, after the splash of water disappeared, I almost immediately recognized the submarines identity: filsdeputeThis is a Harushio-class ship! ??The sonar operator also found it unbelievable, so he directly opened the door on the side of the helicopter and stuck half of his head out to take a closer look. Then confirm that it is really Spring Tide level. ??The outrageous plot development made it difficult for the two pilots in front to think straight: Can the Chinese invite Japanese as imaginary enemies in exercises? ?This imaginary enemy is a little too real. What an imaginary enemy, its real! This submarine was here to monitor our exercises, but it was accidentally discovered by the helicopter responsible for searching for submarines! We and the Chinese Navy blew up a Maritime Self-Defense Force submarine! The operator returned to the cabin and roared to explain to the two companions in front who were still confused. He felt numb all over, and quickly grabbed the radio next to him and put it on his head, preparing to report the incident to the Jean Bart, which was more than ten nautical miles away. At the same time, the atmosphere in the other two Chinese helicopters was naturally joyful. In a state of fighting without defeat, there are various types of games between submarines and anti-submarine. But generally speaking, being able to detect the submarine in advance and force it to surface actively basically means complete victory. ?This time facing the most cutting-edge Harushio-class submarines from Hainan, although the speed of effective response was slightly slower, the response after discovering the target was still quite effective. Definitely a blushing face. Quick, does any of you have a camera? The pilot of aircraft 9686 asked on the radio. Because he saw several crew members appearing in the hull of the submarine, holding a maritime flag in their hands, as if they were preparing to hang it to identify themselves. Judging from their dejected expressions, it was obvious that they were frightened by the round of gongs and drums just now. In peaceful times, if this scene was filmed, it could be counted as a record after returning home. ??These ship-based helicopters, which are numerous in the North Sea Fleet Aviation Force, are actually used more often for verification, search and rescue, and aerial photography than for anti-submarine warfare, so they often carry an ordinary film camera in the cabin. ?Unit No. 9696, which was flying around the submarine on the other side, quickly responded in the affirmative. The photo has been taken! Today is truly a day worth remembering ?The pilot sighed with emotion as he looked through the side window at the slightly embarrassed submarine on the water that had raised its military flag. Soon, the outcome of the incident was conveyed to the two warships that were approaching quickly. The pilot reported that the submarine had been forced out of the water, and it was judged to be the Harushio-class submarine of the Maritime Self-Defense Force, but because there were no markings on the submarine, there was no way to figure out which one it was. ??The radio liaison officer turned around and reported the news to everyone in CIC. Everyone was naturally refreshed. "good!" ?Captain Luo Zhangming made a fist with his right hand, hit it on the palm of his left hand, and made a "pop" sound: Just catch it! The contest between the surface and underwater is generally something that both sides tend to keep secret. In fact, China has not even solved the most basic fleet air defense this year, and anti-submarine treatment is almost completely abandoned. Except for the two 052s, there is basically no third warship that can pose a threat to modern submarines. In fact, to expand the scope, these two 052s are also the only two warships of the Chinese Navy that can barely be called "modern". As a comparison, just last month, the Maritime Self-Defense Force just commissioned the fourth Kongou-class destroyer Chokai equipped with the Aegis system. There is a direct generation gap with the Chinese Navy in terms of equipment level. For Chinese naval officers in this era, not to mention the other side of the ocean, even Haizi can be regarded as a first-rate powerful enemy. However, no matter what the overall strength is, at least today, a win is a win. If you can''t afford it, practice more. If you can''t afford it, don''t play it. However, the surprises are not over yet. A moment later, the radio operator continued to report: In addition, No. 9696 also reported that they had taken photos for evidence and left behind image data. At this moment, even Yang Shuyu, who had been sitting firmly next to the chart table, clenched his fists excitedly and said to Luo Zhangming next to him: When I go back, I will personally ask for credit from you! You must know that in similar confrontations in the East China Sea in recent years, limited by the gap in equipment levels, there were not many opportunities to take advantage. Let alone a complete victory like today. The French asked us what happened to that submarine? Just then, the liaison officer turned back from a short distance away and asked the people celebrating here. ??Everyones eyes were focused on Yang Shuyu. ?Now that the anti-submarine warfare has been successfully concluded, the command has naturally returned to him. The truth, of course, cannot be told. But dont make complete nonsense. After thinking for a moment, the latter raised his head: Tell them that we dont know yet and need to investigate slowly after we go back. We have always regarded this submarine as the imaginary enemy of this exercise. When Lieutenant-Admiral Vojour on the Jean Bart received this answer, he almost laughed. ?According to the report from the helicopter just now, after finding the target, the Chinese Navy''s anti-submarine helicopter dropped a torpedo almost without hesitation. Even if it is not loaded with explosives, it is definitely not the attitude to face an "imaginary enemy". So, perhaps at the beginning, the Chinese Navy did not know the situation clearly. But then they must have had a clear conscience. ?But in this kind of thing, you cant tell the truth after seeing through it. If you run into an area where others are conducting exercises while submersed, you will have to consider yourself unlucky if you are discovered. It would be embarrassing to ignore it. It would be too late for the sea to cover itself, and it would be impossible to publicize it everywhere. With this reply from the Chinese, at least he wont have to take the blame after he returns, and he can even let his superiors cause trouble for the Japanese. You must know that this is a joint military exercise. ? Being approached by a submarine for reconnaissance within 20 nautical miles is not only a provocation to the Chinese Navy, but also to the French Navy. Its okay, its not like our French navy has never fought against the Japanese. Someone next to me whispered this. Huh? Is there such a thing again? When? Obviously not everyone is very familiar with the history of their own army. In 1944, the battleship Richelieu bombarded the island of Sumatra. Unfortunately, the Jean Bart had not been completed at that time, so she did not catch up..." Speaking of which, our No. 1 ship is not called the Richelieu. The conversation was conducted in a low voice but could be heard by everyone, which made the atmosphere in the entire CIC much more relaxed. In the final analysis, the French in this era are trying to be on an equal footing with the United States, so naturally they cannot regard Japan as a true ally. ??Anyway, he didn''t suffer a loss in this matter. After returning home, he could polish up the report a little, which might become capital for him to be promoted in the future. Thinking of this, Lieutenant General Wojru''s mood improved a lot. Okay, lets just write the memo as they say (End of this chapter) Chapter 561 Salvage the loot Chapter 561: Salvage the Trophies at the same time. Farther out on the sea, the Great Wall Boat No. 298, which had been almost forgotten by everyone, directly entered the surface navigation state. Captain Ma Jie put on a thin cotton coat, leaned half out of the enclosure, and was holding a telescope to search the surrounding sea. He even began to wonder whether he had really made a mistake in positioning and had taken the whole boat to the wrong sea area. Captain, would you like to try using the radio? Can you contact the surrounding fleets? ??The voice of Deputy Captain Liu Changlin came from below with some echoes. Submarines are basically unable to carry out any effective communication underwater and can only receive extremely sparse information through ultra-long wave radio stations. Generally, they are some pre-agreed letter combinations, 4-6 bytes in length, corresponding to some simple meanings. For example, return to sea, go to **** sea area, allow attacks, etc. Submarines on the surface can use radios, but due to power issues, the communication distance is not optimistic. Generally speaking, submarine officers are trained to complete all tasks alone from the first day they set foot on duty, so contacting friendly forces is rarely their first priority. Just when Ma Jie was debating whether to follow the advice of the deputy captain, he suddenly saw a yellow cylindrical object floating on the sea at the edge of the telescope''s field of view. A suspicious object was found in direction 45, about 5 chains away! Could it be the buoy dropped by the helicopter before? It was the sound coming from under my feet again. ?Ma Jie gave a negative answer in a loud voice: No, its very big, and if they had dropped the sonobuoy just now, we would have been discovered long ago. The mine? New guesses are given below. Ma Jie climbed directly back to the command cabin along the ladder and threw the telescope to Liu Changlin next to him: "It''s even more impossible. No one would place mines in the ocean, and floating mines don''t look like that." Lets go over and have a look. There are several pieces of glass on the control tower of the 033 submarine. If the view is not too bad, you dont necessarily need to climb outside. Although the Great Wall 298 boat lags behind a bit in terms of technology, the Chinese Navy''s boat maneuvering skills are still good. They quickly followed the captain''s instructions and accurately arrived at the unknown floating object. ?Ma Jie put on his life jacket, led several staff officers and sailors to the boat, and used a long hook to reach the thing to the side of the boat little by little. There is a thread trailing behind this thing. Isnt it dangerous? In the 1990s, the Yu-6 torpedo with a wire-guided function was in the iterative stage of relaunching the plan. The earlier Yu-5 only had an export version and no personal use version, so ordinary sailors of the Chinese Navy had no idea about wire-guided equipment. It''s also normal. ??However, as a captain, Ma Jie can still keep up with the development of cutting-edge technology. No, dangerous things would not be painted in such an obvious color. The line at the back must be a control line, similar to the Armys anti-tank missiles. After explaining, he shouted two trumpets in succession and led several people on the boat to fish out the thing. But the thin cable at the back was very long, and the deputy captain couldn''t pull it completely to the source even after pulling it for a long time. "This wire should be broken. Generally speaking, the length of the wire can be more than ten nautical miles. Cut it off quickly to avoid being thrown behind and entangled in the propeller later." After another flurry of activity, I finally got this round thing. So what is this? Like a small submarine. You see there are foreign characters on it. What did you write? I cant understand it, but I guess its something from the Yankees. What bad things are the Americans doing around us? No matter what, we must take it back and study it. "But this thing is too big and can''t fit into the boat." Several people on the boat gathered around and started discussing. After turning around a few times, Ma Jie stretched out his hand to stop the buzzing voices around him: We definitely have to take it back. Since we are sailing on the water anyway, we will put it on the deck first, but we need to find a rope or something to fix it to prevent it from falling. Shortly afterwards, he turned around and looked at Liu Changlin behind him: Vice Captain, go and notify the correspondent, let him try to contact the fleet, and then inform them that we have picked up an object. "yes!" Liu Changlin stood at attention, then turned around and trotted back to the enclosure. Ma Jie, who stayed on the boat, led others to try to fix the round thing to the railing of the boat. The other side. The appearance design of modern submarines is specially optimized for underwater navigation. Coupled with the existence of wave-making resistance at the waterline, the speed above the water surface is very slow. ?The Winter Tide, which has a maximum underwater speed of more than 20 knots, has a maximum speed of only 12 knots on the water. Therefore, it did not take long for the two destroyers Daocheng and Jean Bart to catch up with the Winter Tide, which was sailing on the surface, and "escorted" the latter completely out of the exercise area in a left-right posture. ?During this period, not only the Chinese Navy, but also the French navy crew members on the Jean Bart took many photos as souvenirs. I am afraid that for a long time from now on, the Maritime Self-Defense Force will no longer dare to make trouble in the exclusive economic zone of the East China Sea. The Pacific Ocean is indeed very lively... ? Lieutenant General Vojour, who walked to the deck, said with emotion. Since 1991, there have been few such exciting scenes on the Atlantic and Mediterranean sides. Today''s round of joint anti-submarine exercises was a little too real. On the contrary, Vojul, who had been away from the front line for a long time, recalled the days when he commanded the fleet and battled wits and courage with the nuclear submarines of the Red Navy. After the old rival suddenly disappeared, I still miss him... After a brief emo, the lieutenant general turned around and said to the captain behind him: "By the way, let me ask the Chinese Navy if they want to continue the second half of the exercise?" Actually, I knew that if something like this happened, I would definitely have to return to Hong Kong. What''s more, from the perspective of "joint training", today''s gains far exceed those of step-by-step exercises. Hence, the Ice City, which was nearly one kilometer away, quickly responded by suspending the exercise and preparing to return. Deputy Commander Yang, Captain, we have just received news from the Great Wall 298 boat, asking about our current location and why we have not found them. In addition, they also said that they fished something like a small unmanned submarine from the sea and asked us what to do with it. Hearing the radio operator''s report, several people remembered that when they were busy hunting Self-Defense Force submarines, they completely forgot about the Great Wall No. 298 as the imaginary enemy. The latter should still be completely in the dark... Ahem ?Yang Shuyus expression was a little embarrassed: Let boat No. 298 send the position, and we will go find them to meet up. As for the thing they caught At this moment, Luo Zhangming, who was next to him, leaned into his ear and whispered: Deputy Commander, the crew of the anti-submarine helicopter just now reported that after the submarine was discovered, it fired something similar to a bait, which is presumed to be an unmanned submarine. "If it happens to be picked up by boat No. 298, I think it can be taken back for study. However, their boat is too small. The helicopter will take off again later and transfer it to our ship." ?Yang Shuyu thought about it for a while and felt that this should be the safest way: Well, lets do it! (End of this chapter) Chapter 562 GPS military navigation module, now available Chapter 562 GPS military navigation module, got it After all, it was peacetime and it was not within territorial waters, so in the end, after escorting the Winter Tide for a certain distance, the two destroyers blew their whistles "politely" and turned around 180 to prepare to return. About half an hour later, No. 9696 Z9C, which had just successfully completed the "simulated" anti-submarine mission, took off again and found the Great Wall No. 298 boat that had been waiting for a long time. Prepare to transport the captain Ma Jie and the unmanned submarine weighing about half a ton back to the 113 ship. By the way, it can be regarded as completing the preset anti-submarine exercise mission in another way. Because of concerns about confidentiality issues, the 113th ship just asked the Great Wall 298th ship to report its position on the radio and wait, without explaining in detail what happened. It wasnt until they got on the helicopter that the two pilots told the wonderful story of their brave battle against the Harushio-class submarine. ?Of course, some necessary embellishments are definitely indispensable. So, you are saying You mistook a Maritime Self-Defense Force submarine for us, then fought around for nearly an hour, and finally... forced them to surface? Ma Jie, who had put on a training uniform, was dumbfounded as he listened to the story the co-pilot told him: You...are not fooling me, are you? ?Ma Jie looked at the calm ocean outside through the side window. But not long ago, there were still undercurrents under the water. ?Yet he and his sub missed all the excitement and didn''t realize it until the dust settled. Like an outsider. Of course not. The first officer shook his head. Then, in order to improve the persuasiveness of his story, he pointed to the bottom of the plane: "What you just caught is the bait that the submarine put out after it was discovered. I guess the wire was cut by the propeller or something in the chaos, so it drifted to you along the ocean current." We are lucky, otherwise if we go back and look for it now, we will literally be looking for a needle in a haystack. Comrade Captain, let me tell you, you didnt see how embarrassed they were when they first surfaced By the way, Comrade Captain, we also took photos. Do you want one as a souvenir? In this era, allowing the Japanese to suffer such a humiliating loss is definitely something worth bragging about for a lifetime. ??If they had not taken into account the rules of confidentiality, the two of them would have told everyone about how they blew up a submarine. Ma Jie, as a person who theoretically "participated" in the whole incident, but who actually knew nothing about the situation, became the perfect target of narration (showing off). "I" ?Ma Jie felt like she had a thousand words in her chest, but she didnt know where to start. Finally, it turned into a series of extremely unwilling questions: Why didnt you inform us? At least lets have a sense of participation, right? There are only 10 nautical miles between us ??The co-pilot who had been chattering just now suddenly fell silent. Just when Ma Jie felt that the other party was speechless because of guilt, the voice sounded again: I didnt say that, comrade captain. At first, we thought that the target was you. Later, when we discovered that something was not right, the situation was already very urgent. The fleet directly entered the real anti-submarine warfare state, and there was really no time to contact you. Secondlyto be honest, your 033 submarine does not have anti-submarine capabilities. Not only will it not be of much help, but the noise will also affect our normal submarine search process ?Lies will never hurt, the truth is the sharpest knife. "I" ?Ma Jie opened his mouth to refute, but was speechless. He suddenly didn''t want to talk to these two people. But the other party insisted on continuing to talk... Speaking of which, your plane is very quiet. We can hear normal speech like this. ?Ma Jie couldnt bear it anymore and decided to change the topic to prevent his blood pressure from exploding: I have flown on an Army Air Corps helicopter before, and my ears hurt after sitting on it The new phone that was installed at the beginning of the year is naturally different from the old model from decades ago. As expected, the two pilots stopped talking about what happened just now and started talking about their new equipment: Speaking of which, the fact that we were able to capture the submarine so quickly this time was thanks to the new aircrafts long enough range, which is better than the original French products imported before. In addition, the sound is also small, and the sonar will not be interfered by the mid- to low-frequency noise of the rotor. I heard that the fixed-wing aviation arm has received many new aircraft in the past two years. It is said that at the end of June last year, the South China Sea Fleet aviation arm also conducted a simulated raid on the British. I have also heard that it seems that it was a long-distance attack of more than a thousand kilometers, and there was also an in-flight refueling. In the end, there was a bold man who threw the auxiliary fuel tank into the middle of other peoples fleet and hit a few floats..." After the successful end of the embankment building operation, it was originally planned to report and commend the participants within the army. ?? But this matter later involved too much, and even eventually led to the replacement of a new prime minister in Downing Street who was relatively friendly to China, and handed over many olive branches as soon as he took office. So in the end both parties decided to cover up the matter together. ?However, paper cannot stop the fire, and it is still possible to keep it secret from the outside world. However, within the naval aviation system, some rumors have been heard. After all, the 25th Hainan Airlines Regiment and the Special Aircraft Regiment were promoted to nearly three digits at the end of last year. Anyone can guess that there is something going on. By the way, comrade captain. The co-pilot turned back and looked at Ma Jie sitting behind him: I think in the past two years, it seems that the speed of equipment replacement of various services and arms has increased. Do you have any intention of replacing your submarine force with new equipment? The latter took a deep breath. TMD, the fist is hard. What happened on this day was reported to the top management after returning home that night. ??Together with the captured unmanned submarine, they were also sent to the research institution in the capital. Within two days, Chang Haonan, who was personally supervising the design work of the turbofan 10 in Shengjing, received an internal call from Ding Gaoheng. Xiao Chang, what you told me before about the need for original military GPS satellite positioning modules has now been taken care of. Chang Haonan, whose mind was still full of blade shapes and flow separation parameters, was stunned by this straight-to-the-point sentence. So fast? ??Although the GPS navigation module is not very strictly controlled as a device that only receives but does not send signals, the P code can only be used by the US military and its core allies. Before 2001, it was definitely not a popular product. You know, it has only been more than a month since he told Ding Gaoheng about this. This efficiency is a bit too fast. "We will discuss the more detailed part when you have time to come back from Shengjing. In short, we obtained an unmanned submarine produced in the United States from the Maritime Self-Defense Force. After dismantling it, we found that there were two complete sets of military navigation systems on it. module, just what you need. Chang Haonan quickly calculated his future work arrangements: My own words...the development of Turbofan 10 is currently at a difficult stage, and we wont be able to go back until next week. However, the person in charge of the development of the GSP jamming equipment now is Comrade Xu Yang from our Torch Group. You can let her do the docking first, and build a prototype of the equipment as soon as possible to test the actual effect! (End of this chapter) Chapter 563 The potential of turbofan 10 Chapter 563 The potential of turbofan 10 The first prototype of the GPS jamming equipment has actually begun trial production at the 14th Institute of Electronics. ?However, without a military GPS navigation module at hand, currently only the crudely captured C/A code can be reversely identified. ??But the problem is that the C/A code itself is completely public, and there is no need for the complex algorithm developed by Chang Haonan and Xu Yang to do forwarding interference. The effect of directly using generative interference is also very good, and the cost is lower, because there is no need for real-time translation, just generate it in advance and then send it out when needed. So the prototype only reached the last step and did not continue. Now we can finally complete the last step. ??Moreover, since I got two sets at once, I can even keep one set for testing the interference effect. I have to say that I am very lucky. ?However, Xu Yang does not have a confidential line at the moment, and this matter involves content that is not convenient to talk about on the public line, so Chang Haonan had to entrust Ding Gaoheng to inform him of the whole matter. In fact, he was also very curious about the circumstances under which we could obtain an unmanned submarine produced in the United States through the Maritime Self-Defense Force. ?However, this kind of thing is probably more sensitive. Even in the confidential line, I can''t say it directly, so I have to suppress the desire to gossip in my heart for the time being. At the moment, things on Shengjing''s side are more important. At the end of last month, when Chang Haonan was busy establishing the Torch-C.B. Ferrari joint venture, Liming Company also successfully built a complete multi-arc ion plating production line with the help of Russian technical personnel and technical data. This is also China''s first vapor deposition coating production line with the entire process completed domestically. According to the supply agreement, other subsequent equipment and production lines will adopt a similar approach to the J-11, gradually increasing the localization rate, and eventually achieving full production in China. Now, Chang Haonan is standing near an ion plating equipment that is quite familiar to him, waiting for the first workpiece to be officially rolled off the production line in accordance with mass production standards to complete the inspection. Behind him stood representatives from the Russian Import and Export Company and technical personnel sent by several other key domestic military industrial enterprises for inspection. After the conference in March, the group reform of the five major corporations in the military industry system was officially put on the agenda. Even the nuclear industry and ordnance industry corporations, which are relatively easy to split, have begun the transformation process. ?At this juncture, several newly established group companies naturally hope to obtain more convincing technologies to make a good first start. After all, group reform is a task pushed down from the top. If the business situation in the first year is improved, it will be a big deal... ??If it is regarded as a covert act and a secret expression of dissatisfaction with major policies, then it will be completely over. The multi-arc ion plating technology adopted by Chang Haonan happens to be something that can improve product quality and performance extremely quickly and quickly. Not long after waiting, a young man in work clothes trotted in from outside the workshop. Hand held a few pieces of paper and a shiny component ?That is a turbine blade that has been coated with titanium nitride. Above the turbojet 14. Used to conduct actual production testing of the performance of titanium nitride coatings. The reason why I didnt use Turbofan 9 is because this coating is a bit expensive, and the mass-produced models of Turbofan 14 and Turbofan 9 are a bit unaffordable, so I just took a recently produced workpiece from the same workshop and made it. . Mr. Chang, the results are out. Here are the test reports and samples. ??The breathless test engineer said and handed the two things into Chang Haonan''s hands. Because it is a formal and complete inspection, the report contains a lot of content. ?Chang Haonan turned directly to the key part as quickly as possible: The film thickness is uniform Coverage rate 100% The film bonding force is 175N "etc" This number directly made Chang Haonans eyes widen: Holy shit, 175N? ??? He instantly remembered the STANKIN-NBC-1 multifunctional coating system that he had used in his previous life. The nominal and measured film bonding strengths are both over 100N. ?At that time, I felt that the effect was already very good. Looking at it now So it turns out you guys were hiding a little bit, right? Sergei Vorontsov, the representative of the Russian Import and Export Company standing in the back, has been dealing with China about ten years ago, and therefore after Sukhoi took the lead in establishing this joint company specifically responsible for facing the international market. , and took advantage of the situation to become one of the senior specialists for China business. Of course he can speak Chinese, but it is really difficult for a foreigner to understand the thousands of meanings contained in the word "wo fuck" in a short period of time. Vorontsov thought there was something wrong with the data, so he quickly took a look: "Mr. Chang, these data are normal. The bonding force of 175N is already very strong for coating. The current common coating method can only achieve a maximum of 50-60N. Our technology is more than three times higher. Chang Haonan suppressed the racing alpaca in his heart and nodded to indicate that he knew. After all, it happened in a previous life, and he couldn''t really talk about it. ? Whats more, the technical manual also says 100N, which is correct. It can only be said that after passing through the most difficult stage, no one will easily take out the special technology and sell it for money. So we still have to get some valuable things back now. ?Chang Haonan handed the samples and reports to several other people behind him to take turns to watch, and at the same time gathered up his thoughts that had just been a little loose. ?There is no doubt that the coating performance meets the requirements of hot-end components. ?General titanium nitride coating can only withstand an operating temperature of about 500-700, but with this terrifying bonding force, it is not a big problem to stabilize it at 1600-1700. ? In this case, the pre-turbine temperature calibration of the turbofan 10 can be further improved to reach the level of 1500-1600C for these third-generation and a half engines. You must know that the overall structural design of the turbofan 10 is very close to the fourth-generation engine. The reason why the performance calibration is still based on the third-generation engine is because other technologies cannot keep up. Now that we have such an unexpected surprise, we can naturally further exploit the potential of the core machine. "Mr. Vorontsov, we are very satisfied with the performance and production progress of this equipment. If there are no problems on your side, I think the memorandum of understanding for the first phase of cooperation can be signed, right?" ?Chang Haonan turned around and looked at Vorontsov not far behind. No problem. The latter nodded: We can sign it right away. The process of obtaining multi-arc ion plating is, after all, a process of changing technology. In exchange, four integrated jamming pods named "Konggan 100", as well as corresponding Chinese technical personnel and data, were also sent to the Moscow Radio Electronic Technology Company last month for copying and testing. According to Russias plan, a pre-production aircraft T10V-5 that is in the process of test flight, which will be the prototype of the Su-34 in the future, will be transformed into an electronic warfare platform similar to the J-Handian-7, and will replace the aging and powerful aircraft in the future. The insufficient number of Su-24MPs assumes the task of accompanying electronic cover and air defense suppression. ?Originally, because the other partys microelectronics technology was indeed not up to par, the frequency range of the built pod was narrower than that of the air-dry 100 prototype, and it could basically only cover a single band. ??However, Sukhoi engineers said this was not a big deal. The T10V-5 prototype has a large enough wingspan, enough mounting points and strong enough power supply capabilities. ?They simply split the original pod into two, targeting C-band and S-band respectively Since its not possible to hang two pods at a time, then hang four pods... ?So, the problem that I had tried so hard but could not come up with a proper solution for the JH-7 was solved simply and crudely. It can only be said that when seeing this plan, Chang Haonan could not wait to put the completely domestically produced J-11 into service immediately. Big means good, many means beautiful. A platform with good enough performance can indeed save a lot of unnecessary trouble. (End of this chapter) Chapter 564 Have any thoughts on Figure 160? Chapter 564 Any thoughts on Figure 160? Mr. Chang. After the brief signing ceremony was completed, Vorontsov suddenly stopped Chang Haonan: As for the content of the second phase of subsequent cooperation, we have some updated proposals. Are you interested? ?Chang Haonan just wanted to grab more valuable things now, but now that he heard these words, he felt dozed off and gave him a pillow. Tell me more specifically? Already ready to stand up and leave, he sat back down again. A few days ago, I saw in your newspaper that your Torch Group and an Italian machine tool company established a joint venture. The main products are new machine tools using linear motors and asynchronous motors? As the director responsible for import and export trade with China, Vorontsov is very sensitive to information about these industries. He has been dealing with Chinese people for more than ten years and is very aware that many industry news here are published in the public media in the form of so-called "official stereotypes". On the contrary, those industry media often make up the numbers and have no valuable news. Its just that there may be some obscure content that requires guessing. ?But for a "Chinese expert" like Vorontsov, it is not too difficult. ?Chang Haonan was a little surprised by this. After all, the establishment of Torch-C.B. Ferrari has only had a relatively large impact even in the country on related industries, especially those related to the Commission of Science, Technology and Industry for National Defense. ?Customers who have placed orders so far, except Agusta in Italy, are all units under the Committee of Science and Industry. ?The most ambitious one is Hufei Group, which is intensively preparing for the localization of the C808, the Tu334 passenger aircraft. It has placed an order for nearly 50 units at one time. But the rest are relatively scattered. ? To a large extent, it was for Chang Haonans sake that I bought it and tried it out first. In this case, it is really a surprise to be able to directly obtain a customer from a third country. ?However, Chang Haonan himself has many things to do, so it is naturally impossible for him to personally handle such small matters as orders from his subsidiary, even if the other party is a representative of the Russian Import and Export Company: If you want to buy a machine tool, you can go directly to our official website and place an order online. After submitting the information, a dedicated person will be responsible for contacting you. ??He just wants to quickly test how strong the heat-resistant buff of the titanium nitride coating is, and then optimize the corresponding combustion chamber and turbine design. No, no, no, buying equipment is only one aspect. Vorontsov quickly waved his hand: Our Kolomna factory plans to improve a batch of old heavy-duty machine tools, which involves replacing motors and processing simulation technology. We have specifically learned that this part happens to be developed by your Torch Company... ?At this time, Chang Haonan finally sat back down firmly. Kolomna is a small city located on the outskirts of Moscow. It has a small population and a small area, but the factory located here is a well-known company in heavy industrial equipment. For example, around the same time as the Toshiba incident, the Kolomna factory also exported a KU299 heavy-duty vertical lathe to Hitachi of Japan. It is still in use today. ??If it can keep up with the pace of the CNC era, the competitiveness of this company will still be considerable. ?Of course, this is not something Chang Haonan needs to pay attention to. ?He quickly started brainstorming, thinking about what new tricks he could use this as an excuse to get out of the other party''s hands. ?But now in this one-on-one scene, he couldn''t leave the other person alone, so he could only have some prolonging conversations while thinking. Hand by the way, lets learn about the situation of some northern neighbors. Who are the current main users of the equipment at the Kolomna factory? The cost of updating the product line, especially the heavy-duty machine tool product line, is still considerable. Against the background of the 1998 financial crisis, the situation at Damao is not very optimistic. It is unlikely that a large sum of money will be invested casually and nothing will come of it. direction. ?This question was actually just a casual question from Chang Haonan. Because the question was very short, it took quite a while to answer it, so it was very suitable for the current occasion. But Vorontsov was stunned by the question. Logically speaking, this should be regarded as internal information of the company, but he mistakenly thought that Chang Haonan wanted to establish a joint venture based on the cooperation method with C.B. Ferrari, so after thinking about it for a while, he still replied: The source of users is quite rich. In addition to our country, there are also several CIS countries, some third world countries, and even South Korea and Japan. "But when it comes to the heavy machine tools to be improved this time, the current main users are only a few aviation factories in Kazan, Ulyanovsk and Komsomolsk. They have recently received some new orders and have the motivation to update some equipment. " As soon as the names of these users came out, Chang Haonan immediately said "good guys". ?? Tracing back to the origin, it seems to have something to do with him. Gongqingcheng, not to mention, is still producing Su-27 for many users around the world, including China, and is even working with Factory 112 to improve the production process. ? Ulyanovsk should be preparing to build the Il-76MF. Although the An-70 has suppressed prices, after all, there are a lot of orders. Ilyushin may soon gradually transfer the production capacity of the Tashkent factory to the country. ?Thinking of this, Chang Haonan reminded himself. ?After the aircraft production lines of the Ilyushin Group are transferred to Ulyanovsk, the Haofei Group can be asked to make a bargain and move the equipment and technical data over. ? Huaxias large transport aircraft will definitely be able to use it in the future. As for Kazan The main business of the Kazan Aviation Factory at present should be the production of parts for Figure 334 and Figure 214. Not only are they produced in accordance with Chinese standards and are ready to be supplied to Hufei Group for final assembly, they are also produced in accordance with Russian standards and supplied to users in the CIS and the Middle East. ?This has to be mentioned, Chang Haonan''s operation last year had a huge impact on the world aviation industry pattern - Among the series of "unequal treaties" signed by Boeing in order to successfully acquire McDonnell Douglas and protect its own stock price, including one that "allows all competitors to use the research and development work they have so far and have been conducted with government financial support." The patent results and technical secrets obtained in the process". This permission has no scope limit. ?As a result, this piece of content almost directly promoted the development of the aviation industry around the world. Let alone Airbus, Bombardier Aerospace, Dassault Aviation, Embraer, Tupolev, Yakovlev, and of course China Aviation Industry, which are numerous manufacturers. Even the Dutch Fokker Aircraft Company, which had already half-footed its foot on the coffin board, sat up from a dying illness and expressed its intention to cooperate with Dassault and prepare to enter the business jet market. ? Many new models and technologies that only appeared in the 21st century are already showing signs of emerging... "etc" ?Speaking of Kazan, Chang Haonan, who was a little troubled just now and didnt know what conditions to offer, suddenly remembered something. The production of the Tu-160 bomber should be carried out at the Kazan Aviation Factory. ?Of course, after the disintegration of DaMao, there is definitely no way or money to produce new aircraft. But according to the historical process of the previous life, around the year 2000, Ermao will hand over a batch of 160 pictures that he has sealed up in the form of debt payment... If done correctly, you may not be able to get a few from it. At this period, Er Mao had as many as 18-20 Tu-160s in his hands, and in the end, Da Mao only picked up about half of them. Even if the remaining aircraft are not in good condition, they are still 10 years old and have not even been flown much. ?Different from the Tu-22M3, which has limited range and bomb load, and doesnt have many highlights except speed, this is a serious strategic bomber. If there is a chance to get it, Chang Haonan will never hesitate. ?However, it is only 1998 now, so it is still a bit too early to say this directly. But preparations can already be done in advance. Mr. Vorontsov. ?Chang Haonan sat up straight, with a serious expression on his face: I suggest that our transaction should be based on the first phase of cooperation and be conducted in the form of technology-for-technology. (End of this chapter) Chapter 565 Vacuum electron beam welding technology Chapter 565 Vacuum electron beam welding technology For Vorontsov, it would be better if he could establish a joint venture with Torch Group like C.B. Ferrari, but he could also accept it by continuing to exchange technology for technology. ?So he nodded, recognizing the cooperation method proposed by Chang Haonan: So, what exchange conditions is Mr. Chang going to offer this time? ?Chang Haonan didnt waste much time and directly stated the requirements: I heard that at the Kazan Aviation Factory, there is a vacuum electron beam welding production line, which is the key technology and equipment provided by the Kolomna Factory? ??Vorontsov was taken aback, probably because he didn''t expect that the other party would know these details so clearly. Yes, but that production line has not been put into use since 1991, so its current condition is average. More importantly, many relevant technical personnel have transferred jobs or even left completely. Colomna''s vacuum electron beam welding production line is used to weld large-size titanium alloys or lithium aluminum alloys. Specifically in the Soviet era, only the central main spar of Figure 160 and An 124/225 could be used. After the disintegration of the alliance, no new aircraft were built for these three models, and the few aircraft that rolled off the production line were all assembled using existing parts. As a result, the production line naturally fell into disuse. But what Chang Haonan wanted was not that production line. The manufacturing and installation of vacuum electron beam welding equipment are extremely complex, and it is difficult to dismantle them, transport them thousands of miles to China, and then reassemble them. So, it is better to consider building a new one directly. Even if Figure 160 is not available, this thing will be useful in the future. In the original timeline, the equipment of the Kazan factory was reactivated after not being idle for too many years. First, we switched directly to the production of pressure vessels, such as rocket fuel tanks. Later, I managed to survive until Tu 160M resumed production, and then returned to my old business. It doesnt matter, as long as the technical information is there. ?Chang Haonan waved his hands and said it didnt matter: We have cooperated so many times and are considered old friends. It doesnt hurt if I suffer a little loss this time. Through Project No. 11 and the multi-arc ion plating production line, Shengjing has cultivated a group of talents who are familiar with Soviet technology and understand Russian. Furthermore, Torch Group is developing rapidly now. Even if some technical obstacles need to be tackled again, it should not waste too long. Vorontsov said to you that you are very kind. If you really want to talk about these two technologies, they cannot be considered to be of the same order of magnitude. Chang Haonan certainly knows this. ?But since he would make this request, he had already planned it. ?So he saw exactly when Vorontsov was about to speak, and pushed back what he said first: Of course, just such an exchange is still a little unfair. So, we are also prepared to show some new sincerity. Vorontsov was a little uncomfortable when he choked on his words, but it was hard to show it at this time, so he had to signal Chang Haonan to continue. Mr. Vorontsov should have heard of our groups TORCHMultiphysics software? The other person nodded. After contacting 601 during Project 11, Sukhoi quickly introduced this numerical calculation software, and was pleasantly surprised to find that it had a very high degree of matching with the modeling software KOMPAS-3D they developed. Actually, we are developing a version with more features and stronger capabilities, and the current plan is to only provide it to a small number of users who have a deep relationship with our group. The only regret is that because this new version of the algorithm is special, it runs very inefficiently on general supercomputers Fortunately, we and Sugon Group have developed new equipment specifically for these special algorithms, namely the Sugon-T series computers, which can solve this problem to a certain extent and achieve high-precision, high-efficiency, and multi-degree-of-freedom calculations ??The so-called new version mentioned by Chang Haonan is naturally the bundled sales strategy of software and hardware that he discussed with Academician Li Jie at the National Science and Technology Awards dinner. ??It''s just that he said it in a different way, and it became a bargaining chip. What is making cards in the void.jpg ?Although Vorontsov on the opposite side has had a lot of dealings with Chinese people, he still clearly lacks resistance to this kind of rhetoric. After some thought, he tentatively agreed to this exchange condition. ?Of course, he can only be regarded as a middleman, and ultimately requires formal signature authorization from the Kolomna factory. ?However, judging from past experience, projects approved by import and export companies are rarely rejected. So, basically they are inseparable. After finishing the PY transaction with Vorontsov, Chang Haonan returned to the workshop. ?Those technicians from brother units are still surrounding the multi-arc ion plating production line, discussing each other word by word. ?Seeing Chang Haonan reappear, everyone stepped forward and surrounded him. Mr. Chang, we just discussed it and now we have a proposal. I would like to hear your opinion. ?One of the older ones became the speaker and said to Chang Haonan: I heard from Mr. Zhong Shihong before that this production line will not be able to arrange formal mass production tasks in Liming Factory for a while. At present, it will only carry out some technical adaptation work. It happens that several of our companies have projects that urgently need this kind of high-stability coating technology, and we really cant wait until the subsequent production lines are completed and put into production. So, during this period, can we pay for it and let Liming Factory help us produce some samples in the form of an order, which can at least be used for testing? ?Those who can stand here are all veteran comrades with certain experience in the military industry system. From the acceptance process just now, it is not difficult to see that although Chang Haonan is not technically from Liming Factory, he has absolute say. ?As long as he nodded, it wouldn''t be a big problem. After all, this production line is completely prepared for the turbofan 10 project. It will still take some time before the turbofan 10 is finalized and transferred to mass production, or even small batch trial production. Its okay. ?Chang Haonan agreed to the other party''s request after some thought. In any case, workers at Liming Factory also need to familiarize themselves with the production line. Rather than letting them practice directly with unused parts, they might as well help their brother units solve some practical problems. But then, he added: However, multi-arc ion plating is not a universal process. Please report the type of workpiece and coating material that need to be coated and let the engineers here review it. If it passes, you can just place the order directly after you go back. Its easy to say, we are just preparing to chromium plate the inner bore of the gun barrel, which is the most common coating requirement..." ??The old engineer who just spoke said immediately. Looks like he should be from the Ordnance Industry Group. We are making gears for a gearbox. The coating is the same as the demonstration just now, which is titanium nitride, but it does not require such a high binding energy..." Plexiglas for aviation needs to be plated with indium tin oxide on the surface Engine piston, molybdenum disulfide plated Chang Haonan was a little dizzy at the sound of voices everywhere, and it took him a while to finally send these overly enthusiastic and excited technicians to the section chief responsible for this ion plating production line. ?However, he did not leave the workshop immediately. Instead, he quietly watched the number of projects listed on the paper increase little by little. Then put on the other side. Put on a new piece of paper Perhaps, this is the scene that I expected to see when I was just reborn. (End of this chapter) Chapter 566 Sonar has no copper, so it’s useless to fish it out? Chapter 566 The sonar has no copper, so its useless to fish for it? ? ?Titanium nitride coating with high bonding strength definitely has a very obvious addition to the tolerance of hot-end parts of aeroengines. This allows Chang Haonan to further improve the performance of the combustion chamber and turbine. For sea level thrust, the final gain is only a thrust-to-weight ratio of about 0.5, but there is a solid improvement in the available thrust of the aircraft at medium and high speeds. According to the current calibration, under "typical" supersonic operating conditions at Mach 1.6 speed and 15,000 meters altitude, the effective available thrust of the turbofan 10 can even be about 40% higher than that of a subsonic optimized model such as the F110. In fact, by the time before his rebirth, heat-resistant coatings had even evolved to use higher-level materials such as titanium aluminum nitride. ??It''s just that at this moment, the carbonitriding process and the titanium nitride coating process are already quite difficult for China to master. The yield rate after trial production using the old turbine design is not very high. In addition, the special-shaped air film cooling holes developed by Chang Haonan are also very labor-intensive. For not very "smart" EDM drilling equipment, it is difficult to achieve it in one processing. Hence, according to current estimates, the production speed of hot-end parts of the turbofan 10 is only about one-fifth that of the turbojet 14. ?Although aircraft engines are valuable, they are still industrial products that must be mass-produced. Blind pursuit of technological advancement affects production, which is to sacrifice the basics and pursue the last. At this point, several core subsystems of the turbofan 10 have completely completed the preliminary design. The next task is to combine the various parts and then make some detailed adjustments and optimizations based on the cooperation between them. This part of the work is not very difficult. The main thing is to reunite the various design teams that worked separately in the early stage. Then comes component-level performance testing, and prototype production and testing that really determines the fate of a model engine. For ordinary engines, reaching this point is the most complicated and torturous part. ?Just like programming, it is not difficult to write code in one go, but debugging is when the programmers patience and physical fitness are truly tested. But the Turbofan 10 cannot be regarded as a general model. With the support of Chang Haonan and the magical system, most pitfalls in the design process can be avoided in advance. For him, the testing process is more like checking for deficiencies and filling them in. There will rarely be anything that can affect the overall situation or even lead to rework. ?However, before that, Chang Haonan still had to return to the capital. At Shengjing, the work in the next few weeks can be handed over to chief engineer Hai Yide, who has to pay attention to the production progress of the die forging press. Secondly...it also satisfies my curiosity. ??He does want to know the origin of those two complete sets of military GPS navigation equipment... ?After Chang Haonan won three awards at the beginning of the year and took advantage of the momentum of the establishment of the Equipment Industry Department to turn the die forging press project into a regular one, his travel equipment also improved a lot. From free business class on United Airlines to the Challenger 601 he flew on last year. Its just that the pilots national flag livery was replaced by United Airlines civil aviation livery. Chief, you may be the youngest person on the list of people nationwide who can enjoy special plane treatment... Zhu Yadan sat on the sofa opposite and pressed the soft armrest of the seat, his tone full of admiration. When she was assigned to work as a guard for Chang Haonan, she was worried about whether this was a disguised assignment. Now it seems that I have thought too much. I heard from Director Ding that it was impossible for me to get the special plane configuration. ?Chang Haonan adjusted his posture slightly and prepared to take a rest on the road later: But this Challenger 601 is loved by my grandma and uncle in the 34th Division. It rarely flies missions, so I simply changed the paint and brought it to me for use..." The cabin environment of business jets is indeed better, but it is just too small. ?Like this Challenger 601, it can only have a maximum of 19 seats. ?Those who can arrange a special plane here in China generally have a small entourage. Everyone is squeezed into such a small plane, but it is not as comfortable as a modified mainline passenger aircraft such as a Boeing 737. In the end, Chang Haonan got the advantage. ?Although this aircraft was painted in civil aviation livery, it did not fly on civil aviation routes, so it landed not at Nanyuan Airport, which is commonly used by United Airlines, but at the western suburbs of the 34th Division. ?The distance to the city center is actually about the same as Nanyuan, but the flow of people is obviously less, and there is no need to wait for luggage after getting off the plane. Even the car can be left in the parking lot. Compared to Nanyuan, which is used both for military and civilian purposes, it is indeed much more convenient.??? ??When Chang Haonan walked into Ding Gaoheng''s office, the latter pulled out two bulging file boxes from the filing cabinet next to him before he could speak. Judging from the lower position, it has been some time since it was placed there. I know what you want to ask, come and see for yourself. Ding Gaoheng put the two piles of files on the table with a smile, indicating that Chang Haonan could read them by himself. The latter took a deep breath and widened his eyes slightly: Is this something I can see? ?Having said that, while asking the question, he had actually started to unpack the two file boxes. Its just that my hands are shaking a little. Ding Gaoheng told him before that he obtained an unmanned submarine from the United States through the Maritime Self-Defense Force. Generally speaking, no matter how small an unmanned underwater vehicle is, it must weigh about 100 kilograms and be one or two meters long. ? Being able to get this kind of thing silently is no less difficult than stealing missiles from a military base in West Germany. Hence, the moment he opened the file box, the names of countless legendary spies had already flashed through Chang Haonan''s mind. Then, he saw the title of the report at the top: Report of the Naval Aviation Force on the Discovery and Expulsion of Submarines of Unfriendly Countries in the East China Sea Exercise Waters Because the plot difference was so big, Chang Haonan was stunned for two seconds. ? Then he realized that there might be so many differences in methods between what Ding Gaoheng said about "getting it" and what he imagined as "getting it" - I thought I was watching "Mission Impossible", but it turned out to be "Greyhound"... "so" Chang Haonan spent about half an hour browsing through the relatively important contents: Did our navy regard a self-defense force submarine as our own blue army imaginary enemy during the anti-submarine exercise? Ding Gaoheng nodded. And then, by accident, the submarine was blown up? Thats not true. Ding Gaoheng shook his head: "The actual situation is that when the comrades of the Navy were bombing the fish, they had already determined that it was an unfriendly target of a third country. Otherwise, it would not have been possible to directly throw a mine." Its just that this matter still involves the French army after all. Considering international relations, in the end, the statement everything is a coincidence was adopted in the internal commendation content. Tsk tsk tsk Chang Haonan sighed as he organized the reports in his hands and put them back in the file box: We still have to thank our comrades in the Navy, otherwise we dont know when our GPS jamming equipment will be able to start prototype production, let alone be officially put into use. Thats what I said, but there is actually another reason for Chang Haonans emotion. ?In his last life, he had seen many jokes on the Internet about coastal fishermen salvaging sonar released by the US and Japanese navies and then selling them as scrap. ?As for the jokes, the content is basically made up. Our fishermen have indeed caught something of value. A MK46 lightweight torpedo, which is the prototype of the Yu-7. ?However, when designing the Yu 7, our country actually introduced the technical data of the MK46 through formal channels, so there is no direct relationship with the torpedo that was fished out. ?However, who would have thought. After rebirth, the jokes that were just for fun in the past turned out to be true... (End of this chapter) Chapter 567 A new generation of aerial platform to replace Yun-8 Chapter 567 A new generation of air platform to replace Yun 8 Ding Gaoheng naturally had no way of knowing the content of Chang Haonan''s slander, and just regarded it as a normal emotion. Luck is only one aspect. ? Ding Gaoheng leaned on the office chair in a quite relaxed posture, habitually putting a cigarette under his nose and smelling it: If we dont have the corresponding equipment, its impossible for us to capture that submarine. Even if we happen to encounter it, there is a high probability that the target will be let go. The report submitted by the North Sea Fleet Carrier Aviation Corps also specifically mentioned the new equipment provided by the Ice Flying Group, saying that it played a very key role in handling the emergency. After finishing speaking, he took out a more neatly bound report (of course a copy) from the file box that had just been placed below and handed it to Chang Haonan: Lets take a look. Although youve probably seen a lot of this kind of thing, I havent seen enough of it anyway Ding Gaohengs thin face almost burst out with joy. ??For the army to be able to write such a report, and even specifically thank the military-industrial system for its outstanding work, it definitely made him look bad. When a person reaches his age and status, there is not much room for him to climb up. It is inevitable to start thinking about your posthumous name. ?In particular, Ding Gaoheng''s father-in-law was the first head of the Republic''s military industry system, which is similar in nature to his current position. It is inevitable to be drawn out for comparison. ?Although limited by the times, there should be no chance to achieve such great achievements as two bombs and one satellite, but we still have to leave a few strokes with great emphasis. ?Of course, Chang Haonans imprint is definitely indispensable in this. The landmark achievements made by the military industry system in the past two years are no less than those in the previous ten years combined. This does not include the impact in parts other than the military industry. Opposite the desk, Chang Haonan quickly turned over the front part and went straight to the summary at the back. ?This kind of serious report to be submitted to the top is not the kind of conclusion that is completely unclear. The whole article only has a valuable background introduction in the opening chapter. Its okay to pick and choose the key points. The performance of the Z-9C aircraft has significantly exceeded that of the original French AS565 helicopter, especially in terms of range and mission load, but the ship-based helicopter force still hopes to further expand the mission scope and extend the mission time, which is very important for anti-submarine warfare. "The French destroyer Jean Bart performed poorly in this operation. Diesel-powered ships are not suitable for anti-submarine warfare. The medium and low-frequency noise caused by the reciprocating piston propagates extremely far in the water, and the frequency is the same as when the submarine is sailing. The noise generated by the friction between the hull and the sea water is highly overlapped, which has a great negative impact on submarine search operations..." "The anti-submarine warfare method of relying only on a small number of surface ships and ship-based helicopters cannot deal with the increasingly severe underwater threats around our country. Although this raid was successful, the initial discovery of the enemy submarine relied on coincidence, and the target submarine had already been It has entered the range of anti-ship torpedoes, so it is still necessary to strengthen the construction of our countrys anti-submarine capabilities..." In addition, the Navys submarine force also needs new equipment. Long-term training using old submarines such as the Type 033 as imaginary enemies has seriously affected the combat readiness level of the Peoples Navy ?The conclusion alone took almost three pages to write eloquently. After reading it, Chang Haonans first feeling was admiration. Dont be arrogant when you win, and dont be discouraged when you lose. Even in the face of an operation that seemed to be a complete victory, the participating units still learned many lessons from it. The people''s army has never been perfect, and has also experienced low periods due to various reasons that affected its combat effectiveness. ??However, they can always regain their strong combat effectiveness in a relatively short period of time, which largely relies on the spirit of being good at learning. Not only good at learning from failures, but also good at learning from victories. The summary is very good, and it can be regarded as pointing out a direction for our comrades in the military industry system, especially those involved in naval equipment. ?Chang Haonan folded the report and placed it on the armrest of the sofa next to him. Speaking of this, Ding Gaoheng put the cigarette under his nose back into the cigarette case and put away his relaxed expression: You probably dont know yet. The senior military officials took this matter very seriously and even directly brought some of the grassroots commanders and fighters who participated in the operation to the capital and held several rounds of high-level equipment development strategy seminars. Such a big formation? Chang Haonan was stunned when he heard this. ?This posture sounds a bit close to the bat-hunting operation that went abroad to fight before and finally shot down the MiG-25 You must know that it actually achieved results, and it also involved a series of complex strategic considerations in the southwest. It also captured the physical jamming pod, which is very important for electronic technology. ?As for the dike-building operation in response to the provocation of the Royal Navy at the end of June last year, although the task itself was much more complex and grand in scale, the battles in this area were much smaller in the aftermath. ??If I have to say, through the unreliable performance of the 8J, I realized that the air command platform still cannot completely rely on foreign countries, so the Air Police 200 was launched as a backup project. Of course. Ding Gaoheng nodded: Although no actual results were achieved this time, the military significance of using a mine without a warhead to directly hit an enemy submarine is not much different in terms of military significance. "What''s more, we are facing the Japanese..." Hearing this, Chang Haonan finally felt at ease. From a perceptual point of view, the vast majority of Chinese people still have different feelings towards Japan and Britain. From a rational perspective, everyone knows that although the Royal Navy may sound famous, it is actually already a thing of the past. Even if they can piece together a fleet, it seems to be a bluff. Now it is impossible to pose a real threat to China far away on the west coast of the Pacific. ?However, as an important part of the so-called "first island chain", Japan''s Maritime Self-Defense Force has put a lot of pressure on it in this era. After a brief pause, Ding Gaoheng continued: In general, this incident made us realize that the anti-submarine pressure faced by the navy is at least not weaker than air defense, so we are considering putting the construction of an anti-submarine warfare system on the agenda..." When he said this, he did not expect Chang Haonan to do anything. ?Just think of it as finding someone to talk to about happy things. ?However, although Chang Haonans specialized business is not in naval equipment, his influence is reflected everywhere in the field of naval equipment... Speaking of anti-submarine warfare, I remember that the turbojet 14 aeroderivative engine previously developed by the 606 Research Institute should have been delivered to the 701 Research Institute of the Shipbuilding Industry for actual testing. It should be able to alleviate some of the navys urgent needs in this regard. ??If the 054 can be designed and finalized according to the plan of Deputy Chief Engineer Lin Qing, it will become a general-purpose frigate with anti-submarine specialties. Ding Gaoheng slapped his forehead and shook his head with a wry smile: "Look, I forgot that the power of the ship has something to do with you..." Its really hard to imagine... In about two years, you have created so many projects that transcend the times..." The sudden appreciation even made Chang Haonan unable to react for a while. After a while, he waved his hand: This cannot be attributed to me alone. Comrades from the entire military industry system also contributed a lot..." After giving a decent but not too modest response, he brought the topic back to the part he had just left unfinished: "In addition, what is said in this report is reasonable. Helicopters and surface ships alone are indeed of little help in the complex sea areas around our country. We still have to consider equipping fixed-wing anti-submarine patrols like P3C or Il-38. The opportunity will do "The only model we are waiting for right now is the Y-8. Although it is not unusable, judging from the progress of Shanghai Airline, the C808 passenger aircraft assembled from large parts should not take long to roll off the production line for its first flight, so it is better to slightly Wait, get on the jet platform in one step..." C808 is a Tu334 passenger aircraft produced in accordance with Chinese standards and improved using some of Boeing''s public patents. For most special aircraft, it is a much better flying platform than the Y-8 Category III aircraft. Even better than the P8A that will use the Boeing 737-700 platform in the future. Most importantly, since no parts from Western countries are used, there is no obstacle to converting it for military use. C808 When mentioning this model, Ding Gaohengs eyes clearly showed some importance: I remember that the maximum takeoff weight of this model is about 50 tons. It should be slightly smaller than the Y8? ?Although he is not a leader from the aviation industry, he still has a thorough understanding of the basic performance of this key model. It is smaller, but the cross-sectional area of ??the C808s body is designed in accordance with the standards of mainline passenger aircraft. It is much stronger than the Yun-8 in terms of cabin volume, flight quality, effective range, reliability and lifespan. Chang Haonan explained: "Among other things, the range under full load is about 3,500 kilometers, which is more than twice the full load range of the Y-8 airtight model. Moreover, when the military platform is modified, the luggage compartment under the floor of the passenger aircraft can also be converted into a fuel tank. Further Extend the combat radius. Furthermore, in the foreseeable future, our armys equipment construction will focus on territorial recovery operations in the southeast and southwest. Even if the endurance is slightly worse than that of the P3C, it will not suffer a loss due to its home field advantage. So, except for some models that really require take-off weight and ultra-large range, such as strategic reconnaissance aircraft or early warning aircraft, which need to wait for the larger C909 platform later, in fact, most special aircraft can be directly modified on the basis of this model. " And, theres one more thing. Speaking of this, Chang Haonan paused for a moment, as if he was organizing his words: I am worried that the C808 model, at least at the beginning, may not be so easy to open up the civil aviation market. Being able to play a role in the military special aircraft platform can also be regarded as a guaranteed order, so that there will be no place to sell the aircraft after it is built. "Moreover, military users are also users. On the one hand, they can give feedback on some problems and suggestions during use, so that Hufei can make targeted adjustments and improvements. On the other hand, it can also be regarded as a demonstration to foreign users, showing that we believe in the products we have made." There is no problem with the aircraft and it will help expand foreign markets. ?This remark is put more euphemistically. In fact, Chang Haonan was worried that internal enemies would cause trouble and cause trouble in the aviation industry that he had finally pulled together. The profits of the aircraft manufacturing industry are extremely considerable, and the operating space behind it is also quite amazing. ??Under the leadership of the Committee of Science and Industry, the development of domestically produced large aircraft has offended Boeing quite a lot. No one knows exactly how many peoples money trees have been ruined behind their backs. As the C808 is the first model after the Commission of Science, Technology and Industry for National Defense took over the civil aviation industry, countless pairs of eyes are staring at it. Chang Haonan doesn''t believe it if these people don''t do anything small. It can even be said that the fiercest battle in the civil aviation industry will not officially begin until the day of the C808''s first flight. It will be more reassuring to have more insurance. (End of this chapter) Chapter 568 We had already started cooperating before you approached the Chinese people. Chapter 568 Before you found the Chinese, we had already started cooperating At the same time, Chang Haonan and Ding Gaoheng were planning how to provide support for the domestic jet airliner platform. France, Paris. Compared to the Chinese Navy, which summed up its experience and lessons in the joy of victory, the French''s reaction was another story. Although the French army does not regard the Japanese as allies (in fact, the French army from the 1990s to the early 21st century may not really regard the US military as an ally), therefore this matter does not involve the siege of friendly forces and can be regarded as a simple matter. to expel unfriendly third-country vessels. But blowing up someone else''s submarine is a big deal after all. Therefore, after leaving China, fleet commander Laurie Vojul immediately reported the situation to the mainland via radio. They also sent two staff officers to transit via Singapore and fly back to the mainland in advance with a detailed incident report and some video and image evidence. Firstly, it is to prevent the Japanese who are living a good life from taking a bite in advance, and secondly, it is to shirk the blame for themselves. After all, all the data can prove that until the Harushio-class submarine surfaced, the joint military exercise fleet "mistakenly believed" that it was an imaginary enemy target preset for the exercise. Of course, some of the Lieutenant Generals own emotions were also added to it. For example, Eurocopter is shameless and engages in false propaganda regarding the performance of its helicopters. The products they make are not as good as other people''s imitations. We were slapped in the face during the exercise and could not hold our heads up at all. This goes on. If there is no country, how can we talk about restoring the glory of France... Of course, it omitted his own psychological activities of setting up a trap to make the Chinese people look bad before the exercise, and did not mention that a fellow countryman had conducted a PY transaction with him before the fleet set off... ? Minister of Military Affairs Alain Richard was flipping through a naval report in front of him with complicated emotions. Because it was written temporarily on the ship, the binding is relatively crude, and there are even many parts with blurred writing. ??If someone dared to hand over such a thing in ordinary times, he would definitely make a note of it in his heart. But now, Richard''s mind was in a mess. Compared with the reports that I have seen too many times, presented by civil servants, with gorgeous words but incomprehensible meaning, and needing to find the key points between the lines to avoid being fooled, the thin pages in front of me are clear in ideas, concise and concise, and are all useful. dry stuff. But the problem is that it is indeed a bit too dry. As a new minister who took office in January this year with only three months of experience, his proficiency in business is not high enough. so. There was so much information that he didn''t know where to start. ?Even the ministers secretary, Alv Busson, knocked on the door and came in without noticing. Mr. Minister, are you okay? ??Bussen looked at his minister who had been motionless for several minutes and whose facial muscles were constantly twitching, as if he was going to have a stroke or shock at any time. He shouted with some concern. ??The last minister he served before was exposed for tax evasion, the last deputy minister was forced to resign due to a **** scandal, and the last MP was unable to perform his duties due to illness... In short, although Busson believes that he has done nothing wrong, if the person in front of him makes another mistake, it will definitely cause a new blow to his professional reputation. Fortunately, Richard was in good health and kept himself clean. He was just meditating just now, and he immediately reacted after being called. Oh, Elvy, Im fine. He put the report back on the table, stood up and stretched his somewhat stiff body and facial muscles: Im just reading a very...rich national defense report. Do you have anything to ask me about? As he spoke, he poured two more glasses of sparkling water, and handed one of them to Busin. The latter belongs to the "Secretary of State" in the French administrative system, not Richard''s personal secretary. Although there is a relationship between the two, they do not belong to the same system. In many cases, they are more Similar to cooperation. Yes, much more important than the defense report. Buson placed the thick stack of documents he was holding on the table, and then took the goblet: May is coming soon, Labor Day and Victory Day in World War II. The Ministry of National Defense regularly organizes a celebration dinner every year, and I need you to sign some invitations. After speaking, he pointed to the file box on the desktop: "I have already divided it into categories for you. You can just sign your name as required, or you and your wife''s name." As a member of the old European old money countries, France still needs to have a certain tone. Of course ordinary people can use printed signatures, but at the upper levels, they still have to sign by hand to show etiquette and attention. ?Just like the New Year greetings messages from China, there are also group and single messages. Richard looked at the document, which was half a meter high, and almost threw the cup away with a trembling hand: Is this more important than the defense report? Buson drank all the sparkling water in the glass and nodded: "No one will know about the national defense report even if you don''t read it, but if the invitation is not issued or is sent late, it may offend many important people. If they agree in advance to participate in activities organized by other departments, it will not be easy for us here. Looks good "This is different. It was sent back urgently by the visiting fleet commander General Vojour. It involves foreign relations, equipment development and...in short, many issues." ??Speaking of this report, Richard suddenly felt that the sparkling water in his hand was no longer tasty. He quickly sat back on the chair and pulled out the report that was buried under a pile of invitations. Fortunately, after this incident, his mind was much clearer than before. The Japanese side is unreasonable in the final analysis, so just issue a note to condemn it. Anyway, even if the matter gets serious, they will be the ones who are embarrassed in the end. What really makes the Ministry of National Defense lose face is the performance of the French army in the exercise. According to Vojul, Jean Bart was completely cheating during the whole process... Oh, how come the army has become like this! ?He organized his thoughts and raised his head again to look at Busin: Alvey, please draft an official letter immediately. I will attach an excerpt of the report and send it to the Aerospace Industry Association to see what they have to say. The other side. In fact, there was no need for Alvey to send the official letter at all. Vojour sent two confidants to fly back to Paris. One went to find the Ministry of Defense, and the other directly found Le Maire, the vice chairman of the Aerospace Industry Association who had had PY transactions with him, and gave the latter a letter. . ?In the letter, the lieutenant general tearfully denounced the fellow villagers'' inhumane behavior, saying that the anti-submarine exercise had made him miserable and almost disrupted the planned exercise plan. He also hinted that although the purpose of "promoting French products to China" was not achieved, and it was even counterproductive to a certain extent, I didn''t even give up face for your words, brother. You can''t go back on the position you agreed on before. . Flamel looked at it and shook his head slightly. He felt that with his shame, he might not be able to enter politics in this life. The Ministry of National Defense is expected to send us an official letter asking about the situation soon. ? Flamel put the copies of the letters and reports back into the drawer, turned around and looked at Kurt Jean Pierre sitting on the sofa next to him: You should also start making preparations. It will probably take some time to deal with those countries. It is estimated that the Netherlands will be easy to convince, and Germany may be a little more troublesome. What I am most worried about is the Italians. AgustaWestland and Fiat both have core interests in the NH90 project, so they may not give in so easily. After saying this, the atmosphere between the two fell into a strange silence. Flamel noticed something strange in Pierres eyes: Is there any problem? "No" ?Pierre scratched his head, seeming to be thinking about how to make the next words less hurtful: Actually, after I came back from Singapore, I have been communicating with several partners about this matter, but you dont know it Agosta sent me a memo two days ago. I think you need to read it. You may not know the contents... He took out two pages of paper from the briefcase he carried with him and handed them to Flamel opposite. ?The latter took it in his hand, glanced at the contents quickly, and then his face froze: Ah? The contents of the memo are concise and concise It doesn''t matter, before you came to the Chinese people, we had actually started to cooperate with them. (End of this chapter) Chapter 569 Jiangcheng Heavy Machine Tool Factory with a new look Chapter 569 The new-look Jiangcheng Heavy Machine Tool Factory Looking at the memo in his hand, Le Maire was sweating all over. There is quite a feeling of secretly holding back the ultimate move after obtaining the martial arts secrets, thinking that as long as you wait for the great achievement, you will be able to beat all the invincible opponents in the world. However, as soon as you come out of the mountain, you find that your martial arts are just generic and your skills are not as good as others. ?But when I think about it, my mentality is a bit complicated. After all, this shows that Erwuzai is not the only one. ??Although the EU has signed an aviation cooperation agreement with China before, at this year''s time, it is still a relatively shocking decision to cooperate with China in building aircraft. Even if Flamel has made a decision, after all, everything has not yet been settled, and a guilty conscience is inevitable. ?In this case, knowing that another founding member of the EU has made the same choice will definitely relax your mind a lot. ?Especially when you think of the great achievements of the Italians in the two world wars (referring to taking sides), this is especially true. ??Just like when you were in college, you skipped class to participate in other activities. After you went there with trepidation, you found that the top student in the class was also... "So, where have they...I mean the Italians come now?" ?Given the efficiency of data transmission in the paper media era, the amount of information a person can access every day is very limited. For example, Le Maire has been coordinating the power of the Rafale fighter jets between the French Navy and Air Force and Dassault recently, that is, the performance calibration and development of the M88-2 engine. His attention is basically focused on the country, and he can''t follow it for a while. It is also normal to get news from overseas colleagues. "This...I don''t know much about it. I only know that Finmeccanica Group sent a high-level delegation there before. What is known so far is that Agusta is planning to develop a 6-7 ton-class, face-to-face missile with the Chinese people. For high-end market helicopters, the specific technical details should be commercial secrets and will not be disclosed too much for the time being. ?Pierre was cutting the steak on the plate while recalling the information he had obtained during this period: There are also several well-known machine tool companies in the industry that have bypassed the Wassenaar Agreement and signed several large orders with China. However, many countries are doing this, such as Spains Boster and Danobate. They also rented planes from our national airline when they exported equipment to China. As for Fiat, I havent heard of any cooperation with China in the aviation business, but they developed the automobile business last year. Speaking of this, Pierre seemed to suddenly remember something and stopped what he was doing: By the way, I heard some rumors that this years F1 Ferrari teams F300 car, which won the championship in the first three races, was designed by the Jinling R&D Center they established just last year. Flamels hand holding the fork also paused in mid-air. Even the act of chewing was forgotten. Is there such a thing? Peoples ideas are actually very difficult to change. Just like now, although Flamel has made the decision to engage in technical cooperation with the Chinese, this is still more of a case-by-case judgment. In other words, when it comes to this specific matter, I recognize your strength, but in terms of daily life, I still lack a specific understanding of China''s technical level, and I subconsciously think that China is still what it used to be. ? Even Le Maire is like this, let alone ordinary people who are not very aware of specific technologies. For most people, only brands that are visible and tangible can be considered real things. This process of concept change often takes a long time or a series of landmark events with great influence to complete. There is such a statement, and Ferrari has not denied it, so it is most likely true. After speaking, Pierre picked up the knife and fork again and started cutting the meat. Forget it, dont talk about this. ? Flamel waved his hand and brought the topic back on track: The automobile and machine tool equipment matters have little to do with us. During this period, I will focus on asking about the details of the cooperation between AgustaWestland and China, which can also be used as a reference. Since their model is 6-7 tons, it means that it does not directly compete with the NH90. This should not be difficult. After you go back, remember to make a list in order of importance of the current problems facing the NH90 project, and then see what can be solved during the cooperation process. As for the Germans, if you do a little public relations, if you really dont appreciate it, kick them out, and you will have one less partner to share the money with ?As a result, the overall direction of the NH90 project has quietly changed in this inconspicuous restaurant cubicle. ?This kind of model involves multinational cooperation and is even for military use. If you want to introduce new, non-ally collaborators, even if you have made up your mind, there is still a lot of necessary desk work to be done. Hence, when Chang Haonan received the cooperation intention from distant France from Lan Xinzhi, it was already almost half a month later. He is following the construction progress of heavy-duty die forging presses at Jiangcheng Heavy Machine Tool Factory. It can be regarded as a revisit to the old place. Compared to the last time when I came here, it was a bit sneaky, this time, it was definitely a serious "inspection" attitude. ??Jiang Chongs old leadership team, including a considerable number of senior grassroots employees, were all removed from the organization in a vigorous investigation at the end of last year. In order to achieve a seamless connection at the management level, the Ordnance Industry Corporation directly transferred half of the leaders of its two second-level state-owned enterprises and took over this enterprise that has been listed as a key national defense unit. ?Of course, ordinary workers in the factory will inevitably feel panic after this round of big moves. ?But this is the part that is easier to solve - After the company was transferred to the Ordnance Industry Corporation, the first official document issued by the group was to suspend the employee layoff and seniority buyout process that had already begun, and required all employees to return to work within three days to conduct production assessments, and to reorganize the workforce based on the assessment results. . After a round of combined punches, when Chang Haonan arrived here, the normal production of the entire factory had gradually returned to normal. Mr. Chang, this is the production workshop of our factory after reorganization. Most of the equipment that was previously intentionally damaged and recorded as scrap has resumed production. ?Jiang Zhongs new factory director is called Liao Xinhua. He was born in 1950. He had been working at the Tiema Group in the neighboring city of Chongqing and has a good understanding of the situation in central China. At this time, he and Yan Yongnian were following Chang Haonan, introducing the situation in the factory: However, according to the results of the police interrogation and the analysis of the files in the factory, there is still equipment worth about 28 million that has been resold. It may be difficult to recover it. Its pretty good to be able to stop the loss to this point. Chang Haonan waved his hand: In the next step, our factorys focus will still be on organizational construction, strict production, and the construction and development of new factory areas. As for recovering the equipment, Director Liao can do his best. ?In this day and age, Jiang Zhongs previous situation is definitely not an isolated case. Many things are not unclear, but involve too many things to be investigated clearly. ?Chang Haonan is a technician after all, not a savior. All he can do is reduce losses within his ability. ?Furthermore, what he cares most about is not individual equipment, but the ability of Jiangzhong as a whole to build and operate the die forging press reliably. From this perspective, it can be considered a complete victory now. Hearing Chang Haonan''s statement, Liao Xinhua finally breathed a sigh of relief. ?The superior said that a matter should be "doed as best as possible", which implicitly means that it does not need to be done. ??He has never had contact with Chang Haonan himself before, but he feels that he is too young to be ridiculous, and he is worried that he is young and energetic, so he must put pressure on this matter. In that case, it would be difficult for a small factory manager like him to be caught in the middle of a fight between gods on both sides. ?But now it seems that although this person is young, his behavior is not naive and he is considered a quite reliable leader. In addition, Factory Director Liao doesnt have to worry too much about subsequent business development issues. Chang Haonan patted an iron lump in front of him at the product exit of the foundry workshop, and then said: After the production is completely restored to stability, I will have someone conduct a product quality appraisal. If it passes the test, Jiang Zhong can be used as the first-tier supplier of Torch-C.B. Ferrari Group. ??Now the joint venture has just started. In order to ship the goods in the shortest time, the production process is a simple cooperation model in which Italy is responsible for producing the machine tools themselves, and China is responsible for the servo equipment and related software. However, according to the joint venture agreement, relatively independent supply chain systems will be built in the two countries in the future to adapt to the different market demands in Europe and Asia and to reduce production costs. This process cannot be completed by the small arsenal in Yanjiao alone. It still requires the participation of some suppliers. No matter from which angle you consider it, Jiang Zhong is a more suitable choice. Facing such good news, Liao Xinhua could hardly hold back the excitement on his face and quickly expressed his stance: Mr. Chang, please rest assured. When I was at Tiema Group, what I was best at was improving the quality control level and ensuring that it passed the quality appraisal! Its good to have this confidence. While speaking, Chang Haonan led a group of people out of the foundry workshop. ?Several minibuses are already waiting outside. Lets go and have a look at the new factory area where the die forging press is planned to be installed. (End of this chapter) Chapter 570 Turn over and become Party A Chapter 570 Turn over and become Party A The die forging press was not set up in Jiangzhongs old factory on the west side of East Lake. Instead, an additional piece of industrial land along the river was applied for in the suburbs of Jiangcheng. First of all, heavy-duty die forging press equipment requires a special working environment. If it is modified on the basis of the existing factory area, there will be too much movement and production will be stopped during the process. Secondly, at the beginning, Chang Haonan was worried that it would be difficult to clean up the legacy of the old team at Jiangcheng Heavy Machine Tool Factory, which might have some negative impact on equipment manufacturing and future production processes. ?Later, although Liao Xinhua did a good job in the finishing work and no longer had any worries in this regard, in the end, the land was already approved and was not used in vain. ??As the motorcade gradually drove from the city center to the suburbs, the scene outside the window became more and more desolate. ??At this time in 1998, China was far from the infrastructure maniac that everyone is familiar with in later generations. Even a regional central city like Jiangcheng still looked like a large rural area as long as you walked slightly outside the city. ?Even after walking about halfway, there was no paved road left. Fortunately, the power of several cars in the convoy was good, so no one got out to push the cars forward. The citys infrastructure construction still needs to keep up..." After getting off the car, Chang Haonan rubbed his head that was a little dizzy due to the bumpy ride, and said in a somewhat unbearable tone: We cant control other places for the time being, but the new factory area is surrounded by mud roads like this. There is no way, this place is too far away from downtown Jiangcheng, otherwise it would not be possible to get it approved so quickly and neatly. Yan Yongnian, who got off the car immediately behind Chang Haonan, took a deep breath of the suburban air. Smells like cow dung. ?His expression froze, and he continued after a short pause: And when you first selected this land, didnt you plan a dock? Then large-sized workpieces and equipment can be transported by ship, which will save a lot of trouble. ?People of this era would never have imagined how exaggerated the pace of urban construction in China would be in a decade or so. For them, this place is basically equivalent to being in a ravine, and it is not considered the boundary of Jiangcheng at all. Liao Xinhua also nodded: Yes, at the beginning, many comrades still had some concerns about this site. They felt that it was too desolate, the environment was too bad, there were no supporting facilities, and life was inconvenient. There were many people who complained. Later, when the work started and efficiency improved, everyones views changed, especially the security department and the transportation team. There were far fewer things to worry about, and it was Mr. Chang At this point, Chang Haonan finally interrupted him with a wave of his hand: "Okay, okay, don''t flatter me too much, go inside and have a look." Mr. Chang, what I said is all the truth. How can the truth be considered a compliment..." ??Liao Xinhua''s rhetoric was clear and flowing, and he was obviously very sophisticated. ?But what he said was quite true. Actually, Chang Haonan had this consideration in mind when he originally chose the location of the die forging press in Jiangcheng. In the last generation, China''s large-scale highway network construction only started after 2006. Even if this timeline is advanced due to the butterfly effect, it will definitely not be able to keep up with the project schedule of the die forging press. Furthermore, at the end of the 1990s, social security was far less stable than it would be more than twenty years later. Long-distance land transportation is still a very risky matter. How high is it? It is now 1998. In Hubei Province, where Jiangcheng is located, the slogan "Car thieves and road bullies will be rewarded if they are killed." Not only cars, but also trains are robbed. Relatively speaking, water transportation is much more convenient and safer. Compared to the surrounding countryside, which seems like a wilderness, the situation inside the factory area is actually much better. After all, the construction has been started for quite some time, and the work efficiency is still semi-military. The simple dock has been put into use, and the ground has been leveled and hardened. Its a pity that there are no construction site artifacts such as prefabricated houses in these days, so there are various relatively simple iron houses around. This area is the forging workshop planned to house the die forging press. Liao Xinhua pointed to an area in the direction of the factory near the dock that was obviously different from other hardened floors and said: "Because this place is too close to the river and the geological conditions are not good, in order to ensure that the foundation under the forging press does not settle or shift, we specially asked the construction team to use high-grade reinforced concrete columns to drive into the rock layer below, and then build them on top The foundation is poured to ensure that the equipments working needs will be met for at least a century to come. Chang Haonan noticed that there were about dozens of people wearing blue work clothes and safety helmets around that area. ?However, since the color can still be seen in the work clothes, it means that there is a high probability that he is not a civil engineer who is dusting. Are those people from the construction side? He asked Yan Yongnian next to him. The latter shook his head: No, in the past few days, the construction team has been strengthening the pier and preparing for the entry of heavy machinery and equipment from behind. No one is here in the forging work area. These are representatives sent by some of the suppliers of our project. They will report to you later on the preparations for the work. Originally, we were going to hold a meeting in the office over at the old factory, but some things, especially issues related to equipment assembly, couldnt be explained clearly on site, so we all came here. Chang Haonan suddenly understood. It turned out to be my own Party B.????This feels really good. ?He has spent his whole life being Party B for others, and now he has finally turned around and can be Party As father for once. ?Chang Haonan felt that there was a bit of wind when he walked. Lets go and meet them. There are countless units directly or indirectly involved in the construction of the die forging press, so it is naturally impossible to send people to all of them. ?Those here today are mainly the first-tier suppliers responsible for core components such as C-shaped plates, main working cylinders, support trusses and movable beams. Even so, after Yan Yongnian introduced them, there were nearly twenty. After another round of routine greetings, we finally got down to business. "Mr. Chang, my name is Duan Hongbin. I am responsible for manufacturing the C-shaped plate of the rack. I need to confirm some details with you before the process method is determined." An engineer unfolded the long roll of drawings he carried with him and laid them out on a drawing board prepared nearby. Actually, when Duan Hongbin received this production task for the first time about a month ago, he was a little confused. ? He ??has been working in the machinery manufacturing industry for twenty years, but he has never seen a situation where even the process details have been determined by the time the design drawings are sent to his hands. ?However, according to the company''s requirements, even so, he still has to follow the process before entering the production process. Then, I discovered a lot of things that I couldnt quite understand. ??But he didn''t dare to change Party A''s father''s request casually. At this time, there happened to be an opportunity to come to the site for a technical analysis meeting, so he came over on a business trip with the information. "here." ? He ??pointed with the pen to a location on the top of the C-shaped plate on the drawing. ??The place has already been circled with a red pen and marked a lot. It is obviously not something that has just been noticed. "For the welding seams of C-type plates, you are required to weld along the width direction in terms of technology, which requires six welding seams to complete the manufacturing. However, our past specifications are generally to reduce the number of welding seams as much as possible. If this is changed to longitudinal welding, it will only Need 4 Generally speaking, this should be the case, but the situation of this C-type plate is rather special. ?Chang Haonan took the pen from the opponents hand: During the design process, we conducted quantitative calculations on the workpiece stress corresponding to different welding methods and found that the maximum principal stress is at the transition fillet of the mating area with the clamping beam pad, and the vertical weld is located just around this position. Will cause the weld to be subject to maximum shear stress. You are a professional in this regard and should know that this is a problem that needs to be avoided during the welding position selection process. ?Duan Hongbin immediately broke out in sweat. He certainly knows this principle, but the location of the so-called "maximum shear stress" was generally based on experience in the past. ?The longitudinal weld does not directly pass through the bolt hole and other parts, so according to common sense, it should be okay. But who would have thought It is directly a dimensionality reduction blow. For a workpiece of this size class can the stress calculation be so accurate? ? Duan Hongbin wiped the non-existent sweat under the helmet and asked in a tone that was obviously not confident. Well, follow Yan Gong later and ask him to show you our stress calculation results. Then you will understand. ?Chang Haonan reached out and gestured to Yan Yongnian who was standing next to him, and then replied. Stress field calculation is a step in the design process and is generally not included when sending drawings. After all, most manufacturers are engaged in processing according to drawings. Its just that this producer is obviously a bit inquisitive, so it wouldnt hurt to let them gain some insight. Hey, good, good ?Duan Hongbin saw that he found the steps and quickly got off the donkey along the slope. Mr. Chang, the main working cylinder chooses the place where two inner arcs intersect and fix it with a vertical hole. Is it the same reason? Another engineer next to him adjusted his glasses and asked immediately. "Yes, the maximum principal stress and maximum equivalent stress of the split working cylinder barrel are at the bolt holes connecting the cylinder bottom and the cylinder barrel. The problem of high stress is difficult to change. In contrast, although we designed The structure will also cause stress concentration at the bottom, but at least the location is not as critical as in the middle of the cylinder. ?More than half of these suppliers are "own employees" who were placed under the jurisdiction of the Equipment Industry Department during this organizational adjustment. Most of them had only known about Chang Haonan before, but had not had direct contact with them. Now that Chang Haonan has been pouring out several rounds of answers, he can be regarded as showing off his skills in front of these veteran technicians. Soon, many peoples questions changed: Mr. Chang, please take a look at the main frame hoisting plan we designed. Are there any gaps... This is the equipment plan for supporting the truss. You have often seen it..." "Regarding the manufacturing of movable beams, due to the slow cooling of large castings, long metal solidification time, and prominent wall thickness effects, our current process relies purely on experience, and it is difficult to control the casting process of such large-size products. Several simulation trial productions have found that castings The strength and impact value are low, and it is prone to thermal cracks. Do you think there is any way to adjust the process parameters more accurately..." ??Yan Yongnian and Liao Xinhua, who had been squeezed to the outside of the crowd, looked at each other. Okay, there is another on-site Q&A session... (End of this chapter) Chapter 571 Are the Japanese cheating? Chapter 571 Are the Japanese making fakes? ??As the chief designer, it is reasonable for Chang Haonan to answer some doubts of Party Bs suppliers. ?However, todays occasion is really not suitable for a long speech. In addition, time and conditions are limited, and it is impossible to answer every detail in detail. Furthermore, the on-site commander is Yan Yongnian, and he should be responsible for this job. So, after showing off his skills, Chang Haonan just wrote down a few issues that were more critical or that he was more interested in. ?For example, as someone just mentioned, guiding the determination of the casting process of large castings through numerical calculation is essentially a multi-field composite problem of temperature field and stress field. ?This is not only the research direction of Chang Haonan''s next plan, but also one of the difficulties that must be overcome before the turbofan 10 is put into production. Because essentially, the production of turbine disks and turbine blades is also a casting process that controls single crystal growth. As for those parts that are relatively easy to solve or are not very important, we can only let Yan Yongnian and Liao Xinhua deal with them. Immediately afterwards, it transitioned to the next topic. ?That is, the selection and supply status of second-tier suppliers. This part is all paper information and has nothing to do with the situation on site. Lets go and talk in the car? ?Chang Haonan suggested. It is still a little cold by the river in April. I didnt feel it when I first came here, but after standing here for a long time, it really felt a bit biting. Since Party As father had spoken, the meeting venue was moved from the semi-completed construction site to the minibus that Chang Haonan had just arrived in. ?Although there are not many positions, not all Party B has the problem of second-tier suppliers. For example, Baoshan Iron and Steel completes everything from ore smelting to finished product welding by itself, so naturally there is nothing to report. In short, its a little crowded, but you can still sit down. Mr. Chang, according to your requirements, our selection of suppliers is based on optimization of supply efficiency, and there are no mandatory requirements in terms of cost and localization. Yan Yongnian handed a compiled form to Chang Haonan and said at the same time: "However, considering that the die forging press project has a significant impact and is planned as a gift for the 50th anniversary of the National Day, no mistakes can be made. Therefore, we have arranged AB backup for most of the second-tier suppliers. Even if the first choice is If there is a problem, I can also launch alternatives as quickly as possible. ?Chang Haonan nodded with satisfaction while flipping through the reports in front of him. Yan Yongnians performance in mechanical design can only be considered average, but when it comes to engineering practice, he is indeed very thoughtful. Although the localization rate of this project itself is not the highest priority, the localization of imported parts and components must be replaced as soon as possible. Chang Haonan raised his head and looked at the representatives of Party B sitting around him: The industrial scale of our country is developing very fast, especially now that there are no restrictions at the policy level. Therefore, it is impossible to just manufacture this heavy-duty die forging press, and your business will be indispensable in the future. "What''s more, there are all kinds of other heavy equipment, such as large cranes, loaders, shield equipment, mining equipment, etc., there are too many to count. As long as it is equipment that currently needs to be imported from abroad, we have it domestically. There is room for manufacturers to develop, even if it is not a project that our Equipment Industry Department focuses on, they still need to find suppliers. When the time comes, you will start early, with a complete range of products and low prices, and you will definitely be a stable first-tier player." ?These words are no longer just discussing matters. It basically points out the way for these enterprises that have just switched from the Ministry of Machinery Industry to the Commission of Science, Technology and Industry for National Defense, and their business may not be stable. ?Some people who responded quickly have even taken out their notebooks and written down the categories that Chang Haonan just mentioned casually to give examples. After all, this is likely to be the next wave of trends in the machinery manufacturing industry. If you can catch it, you will take off instantly. It has been almost a month since the Equipment Industry Department was established. Anyone with a discerning eye can almost see that the relationship between the director and Chang Haonan is very close. ?However, most people still subconsciously felt that it was Lan Xinzhi who wanted to use the latter''s mouth to deploy the work of the Equipment Industry Department. But there are still a few people who have glimpsed some truth and realize, or at least begin to suspect, that the actual situation may be completely opposite. ?However, Chang Haonan didn''t pay much attention to the mental activities of others. He just continued to look at the table in his hand, circling some places involving imported raw materials or parts from time to time, and making comments next to them. ?For example, "We need to focus on development in the future", or "This part of the market is too small, there is no need to use state power, just leave it entirely to the market" and so on. Soon, he noticed a place that was different from the previous ones. In this part, why is it not stated who is A and B among the two suppliers? Chang Haonan picked up the form and pointed to a parts supplier of the main shaft gearbox and asked. ?Hangcheng Gearbox Group Co., Ltd. is responsible for the production of gearboxes for forging presses. Its main business is the production of marine power gearboxes. After being assigned to the Equipment Industry Department, it also began to engage in other businesses. The representative of Hangji quickly gave an explanation: These are the crossed cylindrical roller bearings in the gearbox, regardless of priority. The plan is to use a 50:50 ratio and assemble products of the same brand number from Bingcheng Bearing Group and Japans NSK Group in series. ?This gameplay stunned Chang Haonan: Wouldnt the series installation of products from different manufacturers affect the stability of the gearboxs working condition? Under normal circumstances, standard parts such as bearings, gears, screws and nuts involve too many processes, so even products of the same specifications produced by different manufacturers, or even products from different batches of the same manufacturer, even if they all meet relevant standards, But there will also be some nuances. Therefore, unless there is a need other than technical reasons, it is rare to choose to assemble parts from different sources in series. Thats right. ?The other party quickly explained: NSK has always been the main supplier of our Hangzhou gear factory in the past, but this time, during the bidding process, we found that the performance of the samples submitted by Ice Axis Group and NSK were almost identical, as if they were produced using the same process. And domestic parts are cheaper. "In this case, we should have directly designated Ice Axis as the priority supplier, but we were still worried about whether there would be any non-technical problems. After all, the consistency was really strange, so we signed two supply contracts at the same time. If there is no problem with Ice Axiss products, we will gradually start cooperating with them. If other problems are found, there is still room for recovery, so that the progress of the forging press project will not be delayed. Non-technical questions? ?This statement made Chang Haonan stunned. ?The man had no choice but to continue: In this matter, we can only speculate that Bingxian Group technically referred to NSKs process, but in what form this reference was made...its really impossible to determine... Now Chang Haonan understood. Is worried about the legal risks related to intellectual property rights. In fact, for people who dont know the inside story, there is nothing wrong with this kind of worry. Everyone knows what level your Ice Axis Group has been in the past. ?Its only been a year since I last saw it, and I took out a sample from my crotch that was on par with top foreign manufacturers, and even the details of the performance indicators were so consistent. Everyone has to have some murmurs in his heart. But the problem is that Chang Haonan knows the inside story. ??The technology of Bingxian Group was even sold to him. ??Although the product developed at that time was a bearing set for turbofan 10, others also had subjective initiative. More than half a year has passed, and it is not surprising to draw inferences and come up with something new. In short, there is no need to risk copying others. Are you sure that the test results are almost exactly the same? ?Chang Haonan confirmed again. ?The other party nods: Confirmed, we also specially found two third-party agencies to conduct blind tests, and the final report conclusions are the same. Hearing this answer, Chang Haonan took a deep breath and leaned back tactically. At the same time, I have already come to a conclusion in my mind The counterfeiter is NSK Group... (End of this chapter) Chapter 572 Breaking the filter on Japan starts with you and me Chapter 572 Breaking the filter on Japan starts with you and me For Chinese people in this era, it is indeed difficult to imagine that data falsification can occur in developed countries. ?Especially because the Ministry of Foreign Affairs has been spending money on high-level marketing for more than ten years, there is still a more or less filter on Japanese companies in China. Just like the spirit of craftsmanship. Including after the reform and opening up, many domestic companies learned management and business operations, and most of the study subjects were Japanese companies at the beginning. After all, from the perspective of the time, the two countries are both East Asian countries and have many cultural connections. Even if Japans experience cannot be directly copied, it is easier to adapt to it than the experience of Europe and the United States. Of course, later on, some professionals gradually began to realize that something was not right. The things they learned were strange and of little use. But basically I feel that the national conditions are different, and few people think about it at a deeper level. But as a person who has been reborn, Chang Haonan''s thinking is much broader than that of people of this era. ? Japanese companies large-scale fraud was no longer news at all before he was reborn Rather, it would be rarer if any Japanese company had never committed any fraud. ?Although the situation in the late 1990s cannot be generalized to that in the 2020s, Chang Haonan does not remember the specific misdeeds of the NSK Group. But in short, the existing evidence has shown that the other party is highly suspected of fraud. After all, those forgery immortals in the previous life were able to produce twenty or thirty years of fraudulent records when they were found out. If you do the math, it will start exactly in the 1990s. Your Hangzhou Tooth Factory should still keep those test reports, right? After thinking for a moment, Chang Haonan asked. Of course, we must keep all these documents in case there is anything unclear in the future. ?The other party nodded and replied: "If Mr. Chang needs it, we can provide you with a copy, but the original...According to the factory''s regulations, unless there is an express request from the superior or the police, it must be kept in the file." He was obviously worried that Chang Haonan would ask for the original copy immediately, so he took the precaution first. It doesnt matter, a copy is enough. Please contact us as soon as possible and ask them to send this fax. ?Chang Haonan tore off a page from the notebook he carried with him and wrote the fax number of Yang Huimei''s office on it. Although I had always thought about setting up a department responsible for publicity, Professor Yang later became more and more skilled in this area, and he continued to pluck hair from a sheep. After all, the other party is also a state-owned enterprise executive, not an ordinary worker. There is no psychological burden when squeezing it. Yes, Ill do it after I get back today! For most of the other people in the car, this episode was a minor episode at best. It looked like Chang Haonan was going to investigate the situation thoroughly after learning about it. ?In addition, in this round of organizational adjustment, Bingxian Group was not included in the management of the Equipment Industry Department, but directly became an ordinary local state-owned enterprise. Therefore, some people are speculating whether Lan Xinzhi or Ding Gaoheng is preparing to borrow the help of Mr. Chang to further expand their power by taking advantage of the momentum of the die forging press project. ?However, not everyone is looking in the wrong direction. After todays entire trip, on the way back to the city, Yan Yongnian specifically found Chang Haonan. He is more familiar with the latter, and has heard that the other party has assisted several special steel companies and bearing gear companies in developing products, so it is easier than others to see some of the tricks. Mr. Chang, why do I feel that something is not right? "Last year, a few of my friends from the Bearing Research Institute accidentally mentioned that our country''s bearing industry suddenly entered a small explosion stage, and specifically mentioned Ice Axis by name, and came up with a new product in the field of automotive bearings. Several nice products If Bingzhuo Group used special means to obtain other peoples process technology, it would be unlikely to share it with such a big fanfare that it would drive the entire industry forward, right? He did not directly mention Chang Haonans name in the question. After all, leaders may sometimes want to maintain a sense of mystery. "In this case, can it be a complete coincidence? Two companies have developed very similar process technologies, and then happen to be very close in the performance of a certain batch of products?" Liao Xinhua''s tone was full of questions, obviously I think this possibility is low. Performance characteristics are somewhat similar to human fingerprints. Although it is theoretically possible that they may appear the same, in fact the probability is completely negligible. Of course it cant be a coincidence. Chang Haonan waved his hand and straightened the seat that he had just put down, and he also sat up: But have you ever thought about another possibility? ?Yan Yongnian and Liao Xinhua looked at each other. After thinking for a moment, they shook their heads almost simultaneously. Human knowledge will not exceed the age in which he lives. It is normal for two people to react like this. "The performance difference between the products produced by the two companies is smaller than that between different batches of products from the same company under normal circumstances. It can even make the Hangzhou Gear Factory think that the string installation will not affect the working stability, even if the same gear is used. This kind of technology is simply unrealistic. If the results on the test report are really what they just said, it means that these bearings not only use the same production technology, but are even made on the same assembly line! ?At the end of his speech, Chang Haonan tapped the small table in front of him to emphasize the point. MeanOEM? Liao Xinhua, who has been engaged in business operations for a long time, is more familiar with these things and blurted out immediately: Thats what Ice Axis Group started from Halfway through the answer that subconsciously popped into his mind, he realized something was wrong. Nothe person just said that Ice Axis products are cheaper and the supply volume is still large. It is impossible for OEM to achieve low cost and high shipment volume at the same time That means ?Yan Yongnian and Liao Xinhua took a breath of air-conditioning together: Maybe its the other way around, where NSK Group purchases Bingzhuo Groups products in bulk and then sells them under its own trademark? Chang Haonan nodded: Its not possible, but its likely to be the case. "this" ?Although they may have come up with this on their own, the two of them still had an unbelievable feeling when Chang Haonan nodded. It even means that the worldview has collapsed. The image of Japanese products has been established in China through various methods since the early days of reform and opening up. In the past ten years, it has almost never encountered any large-scale challenges. It is generally believed that although there is still a gap compared with the top European products, it is basically a perfect balance in terms of price, performance and service. In the Chinese market, it is generally classified into the ranks of high-end goods. However, just today, the naked reality tells them that there is a Japanese company that is well-known in the industry and directly sells domestic products under the OEM... ?According to the Thousand Cockroaches'' Law, it is absolutely impossible for them to just use OEM products in this supply agreement. ?However, it has never been discovered before. In other words, in terms of performance, the products of our Bingcheng Bearing Group are not inferior to NSKs original products at all? ?Yan Yongnian quickly figured out the joints: Otherwise, people would have discovered it long ago if they were using OEM goods to top up their accounts. Its not bad. Chang Haonan gently shook his finger: The materials and processes used in these recent products of Ice Axis are all solutions provided by our Torch Group. "I can''t vouch for the big European manufacturers with a century-old heritage. After all, they have a lot of wealth, and they might be able to find some treasures from the old papers of the past. However, it is absolutely impossible for Japanese and Korean companies to develop the same level of technology in a short period of time. " They choose to sell products under OEM brands, not because of simple cost issues, but because they cant make them! (End of this chapter) Chapter 573 An opportunity to rectify the name of Chinas machinery industry! Chapter 573: An opportunity to clear the name of Chinas machinery industry! After Chang Haonan finished saying this, there was a sudden silence in the minibus. ??Only the hum of the engine and the sound of the car outside the window could be heard in everyone''s ears. Not only Yan Yongnian and Liao Xinhua, but also other people in the car who had just been talking soy sauce and did not interrupt. Almost I stopped thinking for a moment. For them in this era, the amount of information received in a short period of time is indeed a bit too much. Take some time to digest. So Chang Haonan was not in a hurry to continue talking, but waited quietly for a few minutes. By the way, lets let the atmosphere brew again. Finally, Yan Yongnian, who had already seen Chang Haonans level, was the first to react: "Mr. Chang, what do you mean...are you going to collect evidence and then go through legal procedures?" Obviously, his thinking is still relatively traditional. There is little point in going through the legal process. Chang Haonan waved his hand and said in denial: Unless it can be proven that they have stolen trade secrets, the process parameters themselves do not constitute a patent. Besides, they did not take the technology over to produce it themselves, they just changed hands. "Furthermore, large companies like NSK Group will not directly engage in retail sales to ordinary consumers, and consumer fraud is out of the question. At most, Party A like Hangzhou Tooth Factory can only sue the other party for contract fraud, but this kind of lawsuit is a rip-off. It takes too long and the impact is very small. Even if they win the lawsuit, it will only cost them a lot of money. " ?These days, Im afraid no one would think of avoiding OEM in advance when signing a contract with a foreign company. Even if origin restrictions are added, this is a gray area that is difficult to define. Purchasing the bearings together, shipping them back to Japan, stamping them with codes, and putting them in their own packaging. From a legal perspective, it is difficult to say that they are not produced in Japan. Everyone around was stunned. ?Immediately, I quickly realized that since Chang Haonan said this, he obviously had other purposes besides getting compensation. In fact, this set of operations of NSK Group is not unfamiliar to people sitting in the car. It is not uncommon for domestic companies in China to OEM imported products and sell them as domestic products in recent years. Even this has become one of the open conditions for many foreign companies to acquire domestic companies at bargain prices. ??It''s just the reverse operation, which no one has ever seen before. As the psychological shock that they first heard the news gradually passed, everyone''s IQ gradually regained the high ground. I think Mr. Changs intention is to use this opportunity to reduce the domestic market share of Japanese bearing companies. As a business manager, Liao Xinhua is relatively sensitive in this regard. But he is obviously still a little conservative. Broaden your horizons, there is no need to just focus on the domestic market. ?Chang Haonan adjusted his sitting posture and placed one hand on the small table in front of him: NSK Group has a considerable market share in the field of mid-to-high-end bearings around the world. Originally, the machinery manufacturing industry should have a lot of reputation and inertia, and it is not so easy to reshuffle. "But this time, since they have given the opportunity, we must make the big news out and let the whole world know that NSK bearings are actually produced and re-branded by us in China, so as to establish the brand image of domestic products. ! Hearing this, Liao Xinhua couldn''t sit still. Having worked in the corporate world for more than 20 years, he is very clear about the significance of reputation and brand image. Even when many countries buy weapons and equipment, they place orders with their eyes closed based on preferences, let alone the civilian market, which is more blind. A good brand image brings extremely obvious buffs to the product. ?For example, more than 20 years later, some Japanese cars that have been reduced to the limit can still sell tens of thousands of cars in China every month. People''s concepts are sometimes difficult to change. Now, there is a big gift package sent by the Japanese themselves in front of them. ??If done properly, not to mention replacing the other party''s position in the industry in one fell swoop, at least whenever the NSK Group is mentioned in the future, others will immediately think of this OEM incident. For current Chinese enterprises, this is already a great progress. "In this case, we still need more conclusive evidence. After all, NSK still has a certain position in the industry. If the Hangzhou Gear Factory alone comes out to accuse, I''m afraid it won''t be loud enough." Liao Xinhua suppressed his inner excitement and fantasies about the future. Continuing the analysis: It would be best to find more users like Hangzhou Gear Factory. We can even catch a wave of fish, first find NSK to purchase a batch of bearings, and then collect more evidence... ?Although he looks calm and calm on the surface, his voice is slightly different from usual. Theres no need to go to such trouble. Chang Haonan naturally saw at a glance that the other party was full of expectations but had to pretend to be calm due to his image, and replied with a smile in his tone: Although Ice Axis Group is not under the jurisdiction of the Equipment Industry Division now, I personally still have some connections there. Besides, this matter will be of no harm to them, so I just go and check their sales records. When NSK does this kind of thing, it must change hands through middlemen. However, when it comes to selling OEM products, they usually purchase them in centralized, regular and large quantities. Its not difficult to find them if youre interested. What else At this point, he paused slightly: Japanese companies have a very strong guild nature, and there is a lot of cooperation among them. I dont believe that only NSK is doing this kind of thing. ! ! The whole car seemed to sway slightly because of these words. If thats the case, thats really Yan Yongnian didnt even know what words to use to describe his current mental state. ?I wanted to say it was great, but I felt that it was a bit gloating, which was not in line with his personality as a scholar. ??But Liao Xinhua didn''t have this kind of psychological baggage, so he slapped his thigh and expressed his thoughts. : Thats great! I never thought we would have a day when we can be proud and proud of ourselves! ?If it is true as Chang Haonan said, then this may completely become an event that triggers a major earthquake in the entire bearing and even the entire machinery industry. You must know that Japanese companies represented by Nippon Seiko (NSK), Toyo Seiko (NTN), and Koyo Seiko (KOYO) have formed an industrial alliance to a certain extent, and even compete with established European manufacturers on some products. There is a reply. This is a huge bonus. Chang Haonan stretched out his hand and pressed it down in mid-air, and then stopped the commotion in the car: This matter really needs to be carefully planned. You cant be impatient. You must have a large enough influence in the first wave and kill the opponent in a short time. So dont act in private. Let me make a unified plan! It should be said that Chang Haonan is very lucky. On the night when this incident happened, after he returned to the capital, he immediately met Lan Xinzhi who came to him to report the news. Although the latter has now risen half a level in rank and has become the leader of an independent department, the nature of his work has not changed much. Essentially, I am still a secretary. Of course the future is no longer the same. Mr. Chang, the news from Aviation Industry Import and Export Company is that they have received an official letter from Eurocopter, asking if we are interested in cooperating to develop a 10-ton general-purpose helicopter. Ten-ton levelisnt that the size of a black hawk? You can make ice fly over there ?Ten-ton helicopters are one of the two most important classes of general-purpose helicopters (10 tons and 13 tons), and there is definitely a demand for them. ?However, since there has been a precedent of cooperation with AgustaWestland, this kind of thing should be familiar to Bingfei. Then we will see what form the other party hopes to cooperate in. So what Chang Haonan subconsciously wanted to say was to let Bingfei directly take charge of the docking. But halfway through speaking, he suddenly realized that this should be an opportunity. He thought about it and it seemed that the only 10-ton helicopters available from Eurocopter were the NH90. This is considered a dual-use model for both military and civilian use. Although I dont know what kind of tricks the other party has carried out to be able to carry out technical cooperation with China on a military product, if the OEM bearing matter can be allowed to break out in this matter, the impact will obviously be greater than Just a few domestic users are much larger. From this perspective, the helicopter project itself is not that important. After all, helicopters of the same level also have conflicting ecological niches. It is not easy to say whether China, especially military users, prefer the Black Hawk configuration or the NH90 configuration. You put the information sent over there to me, and Ill see if I can ask Manager Yang to talk to Eurocop directly. (End of this chapter) Chapter 574 Are you really a fake immortal? Chapter 574 Is this really a fake immortal? ?According to Chang Haonan''s experience, Europe generally does not move very quickly, so the top priority is to thoroughly investigate the OEM fraud incident involving NSK. Firstly, it is to know yourself and the enemy in the subsequent layout, and to obtain the maximum benefit by calculating mentally and unintentionally. Secondly, we must first give a warning to the country, or at least the Science and Technology Commission system. At least let everyone be more careful when considering Japanese suppliers in the future. After all, this time I just bought an OEM bearing produced by Huaxia. It was just a waste of money at most, but at least it wouldnt cause any quality problems. But who knows how many undiscovered bad things are hidden behind this? Those things that were discovered more than 20 years later were almost all related to defects in the products themselves. Being more vigilant cant hurt. By the way, it can also dispel some peoples stereotypes. Therefore, when Lan Xinzhi was about to leave after talking about the matter, Chang Haonan specifically stopped him: Send someone as soon as possible in the next few days to Bingcheng Bearing Group to check their sales in the past six months. Pay special attention to whether there are a large number of customers who have stable purchases but cannot see any clear purpose. As the director of the Equipment Industry Department, Lan Xinzhi will naturally follow up on the situation of the die forging press project in real time. He already knew that Chang Haonan suspected that NSK bearings were OEM. The initial shock stage had passed, so he didn''t need extra time to digest it like Liao Xinhua, Yan Yongnian and others before. He could also guess that Chang Haonan The purpose of this instruction: Ill make arrangements as soon as I get back. After answering, he hesitated a little: But Mr. Chang, Bingcheng Bearing Group is not under the leadership of our Equipment Industry Department. If we just go ahead and directly ask for their business data, Im afraid the other party may not cooperate, right? Chang Haonan waved his hand: It doesnt matter. I have had some dealings with Zhang Xu, the former head of R&D of Ice Axis Group, oh, he should be the deputy general manager now. "I have contacted him before in Jiangcheng. There will be no problem. Just ask someone to bring the letter of introduction and official letter. If you find any useful evidence, you can even make a copy and bring it back. After all, If this matter can have a greater impact, it will also be meaningful to their groups operations and brand image. At this point, he changed the topic again: Of course, the comrades we send there must also be reliable and ensure that they do not reveal other peoples business secrets. Trust cannot be treated as a childs play. At this time, Lan Xinzhi basically admired Chang Haonan. As expected of Mr. Chang, not only has a wide network of contacts all over the world, but he has already taken care of everything... After thinking for a moment, he answered: "Then I''ll let Lin Baohua and Fan Wenkang go there together. They can be considered as having care and supervision. Moreover, they have clean backgrounds and have worked with you before." Chang Haonan quickly remembered that these two people went to Jiangzhong with him last year to investigate the situation, and they indeed knew the basics: The two of them have also been transferred to the Equipment Industry Department? Lan Xinzhi nodded: Yes, when the new department was established, two people took the initiative to apply and are now working as team leaders in the Industrial Coordination Office. ??When the two of them went to Jiangcheng with Chang Haonan before, their rank should have been chief section officer, which was equivalent to a full-time clerk. According to the establishment, the most basic department of the ministries and commissions is the office at the division level, and there are no actual department-level leadership positions. But when dealing with some trivial tasks, people of this level are needed to take care of things. So although team leader is just an internal term, the weight of his position is completely different. Okay, lets take them, just to see if they have the ability to stand on their own. ?Although he does not have a formal position in the Commission of Science, Technology and Industry for National Defense, at least in the Equipment Industry Department, Chang Haonan''s words still carry a lot of weight. Chang Haonan originally selected these two people because they did not have other complicated backgrounds in the capital and their positions were relatively reliable.?????In the future, there will inevitably be times when such people are used. "Also, let the companies under the Equipment Industry Department check to see if there are any similar situations. It is impossible to hide an action of this scale and level from peers in Japan. Since there has been no news for so long, I I dont think other Japanese companies in the industry are doing much better. It should be said that as long as the system of the Commission of Science, Technology and Industry for National Defense is in operation, its work efficiency is indeed very high. Even somewhat exceeded Chang Haonans initial expectations. In less than a week, first-hand information or clues from various sources came to Chang Haonan. Dear leaders and comrades, according to our investigation during this period, we can confirm that NSK and NTN purchased large quantities of finished products from Bingcheng Bearing Group and Luoyi Bearing Group, repackaged and calibrated them in Japan, and then pretended to be them. The products we produce are then sold back to our country and we make huge profits from them. ?In the conference room on the top floor of the Science and Technology Commission, Chang Haonan held up a document in his hand and said loudly to everyone present. Still an enlarged meeting of the leadership team of the Commission of Science, Technology and Industry for National Defense. ??Its just that in addition to Chang Haonan, Lan Xinzhi was also included this time The director of the Equipment Industry Department was not originally a member of the team. When he was a secretary before, he participated as a record-keeper rather than a participant. After finishing speaking, Chang Haonan picked up another one from the piles of documents in front of him: Beginning in the fourth quarter of last year, the two groups registered and established a number of small and inconspicuous companies in several coastal provinces under different names, and then purchased large quantities of finished products from Bingzhuan and Luozhou at wholesale prices, and then purchased them for repairs. The parts are shipped back to Japan for OEM operations, and the profit gained from such a change of hands is on average more than 5.5 times that of our domestic manufacturers! When Chang Haonan said this, some people could no longer hold their nerve. But he immediately picked up a third document: A total of 74 bearing models can be found, mainly in the three fields of vehicles, construction machinery and machine tool equipment, especially vehicles. For example, NTN Company, as one of the designated suppliers of domestic Santana automobile wheel hub bearings, purchased 350,000 bearings from Luozhou Axis through white gloves this year alone, of which more than 310,000 have been resold domestically. 310,000? Such horrific figures have shocked everyone for a whole year, so much so that Deputy Director Zhang Dongxu shook his hands and spilled the water: I remember that Santana only sold 240,000 units last year. Less than four months have passed this year. Even if there are 60,000 vehicles and 240,000 wheels, wouldnt it be..." Thats right. ?Chang Haonan nodded and replaced it with another new document: We sampled 115 wheel bearings used in this years new Santana in different cities and found that they were all produced by Luozhou, and none of them used NTNs representative processes and materials. And thats not all, through communication with the car manufacturer, we found that the performance calibration of the wheel bearing technical manual provided by NTN is even higher than the factory calibration of Luozhou Axle! Others, even Lan Xinzhi, were speechless. Its just a matter of OEM. After co-writing and labeling, do you still need to add water to the performance indicators? Actually, let alone anyone else. Even though Chang Haonan himself was mentally prepared, he was still stunned by NTNs operation I knew you could fake things, but I didnt know you were so good at it. Are you really just making a fake immortal? (End of this chapter) Chapter 575 Dig a hole for your little life Chapter 575 Digging a hole for Xiaoli Unexpectedunexpected Huai Guomo screwed up the thermos cup in his hand, the expression on his face still showed some disbelief: In the past, I only heard that some companies in our country would do this, laundering imported goods into domestic products to meet the localization rate indicators of superior units. But now it seems that this may still be the experience obtained from outside..." A sentence that was half sarcastic and half humorous, which broke the somewhat stiff atmosphere in the conference room. From another perspective, this also shows that our countrys development level in the field of bearings may be higher than we imagined. ?Zhang Dongxu also took up the conversation with a smile, but then changed the subject: "It''s just that, according to what Comrade Haonan just said, almost all of the profits were made by foreign companies that used OEM services. This did not make our company make money, nor did our country''s automobile industry benefit from it." Cost reduction is the next step that we, especially Xinzhis Equipment Industry Department, need to solve. Of course, how to do it specifically, whether through legal procedures or other methods, we still lack experience in this area, and we need comrades from the Ministry of Machinery Industry to play their role. After all, the Commission of Science, Technology and Industry for National Defense is mainly responsible for the national defense industry. Although there were enterprises and products that were converted from military to civilian products in the past, it was not its main business after all. ??Now that we have suddenly acquired a new authority like the Equipment Industry Department, it is indeed a new challenge. NTN and NSKs bearing products are very well-known in the industry, and their market share is not low. Even our aerospace industry has signed supplier contracts with them for many projects. ??The speaker this time was Lian Jiexin, another deputy director who was newly appointed last month and is also the director of the National Aeronautics and Space Administration: "I see, after today''s meeting, several of our business departments went back and asked the following to check to see if there are any similar situations. If so, we will immediately terminate the cooperation in the name of product fraud and transfer the procurement contract to Go to our domestic companies! ?This proposal quickly resonated. ??Although neither Luozhou nor Bingxuan is an enterprise under the Commission of Science and Technology, there is absolutely no reason for the Japanese to make away with the OEM money, whether from the perspective of supply chain security or from an economic perspective. ?Seeing that the emotions of this paragraph were already in place, Chang Haonan began to add more weight: Actually, based on some clues we have discovered so far, it is possible that the bearing industry is just the tip of the iceberg of Japanese companies fraud. Are there any masters? ??Everyone who was still racking their brains to think about how to implement the operation after returning suddenly raised their heads and looked at Chang Haonan again. We have not yet discovered the re-branding of products imported from our country. Chang Haonan said and patted another pile of materials in front of him: However, through random testing of samples and interviews with companies and users, we have enough reasons to suspect that many companies, including Kobe Steel, Sumitomo Metal, Mitsubishi Motors, Mitsubishi Electric, and Hitachi Chemical, have products in production. Fraudulent quality and testing data. If the incident between NSK and NTN just now gave everyone more of an unexpected and amusing mentality, then this wave of roll call is almost equivalent to dropping a bombshell into the rippling lake. . Ding Gaoheng, who had not spoken much just now and whose expression had always been relatively relaxed, tensed up almost instantly and sat up straight: Are you sure? So many companies have problems with their products? ?Although the others did not say it out loud, judging from their eyes and expressions, they all had similar meanings. Those sitting in this conference room have all done some specific business work. In peoples minds, Japan is, after all, a mature and even relatively old industrial country. It is understandable that there are one or two isolated cases, but this large-scale fraud has completely broken through their understanding of a normal industrial operation mode. There is basically nothing wrong. Chang Haonan nodded: Because for most industrial products, the truly reliable detection method is destructive testing, so samples can only be randomly inspected, and the operating space in this process is really too large. "Many supply contracts last for several years or even longer, and random inspections are also carried out according to the cycle. They can make normal deliveries during the inspection period, and at other times use inferior products to top up the supply. In this way, even if something goes wrong occasionally, You can also use excuses such as work mistakes to avoid arousing widespread suspicion. " This time we had an unplanned surprise attack, so we found out a lot of interesting results. If this is the case, I have to report the situation immediately. Ding Gaoheng was already a little unable to sit still: Japanese companies have had very frequent business dealings with us over the years, many of which involve major projects directly led by the top management. "Take a few examples that Xiao Chang just cited. Sumitomo Metal is a structural steel supplier for the water diversion equipment in the second phase of the Three Gorges Project, and it is a structure that will be poured into the dam body for permanent use. Mitsubishi Motors supplies a large amount of commuting equipment to the People''s Liberation Army. Hitachi Chemical, the complete vehicle and parts of the command vehicle, is one of the core suppliers of integrated circuits in our country. When I was chatting with Director Song of the Science and Technology Commission a few days ago, he also said that their technology should be introduced into the newly built semiconductor industrial park in the country... " ?Seeing Ding Gaoheng who looked anxious, Chang Haonan knew that his goal today had been achieved. ?The reason why he specifically named those companies just now was because he was aware of their status in China and attracted enough attention. Not only from Ding Gaoheng, but also from above. After all, the scope of this matter is too wide. Japanese companies have been working in China for more than ten years. Coupled with the long-term and subtle public opinion indoctrination, the relevant interest groups behind them are even larger than the previous aviation industry. To say that Japanese companies are committing fraud is tantamount to the collapse of their faith for some people. ?Hence, if it is just the Science and Technology Commission and the Science and Technology Industry Committee that act on the stage, there is no guarantee that they will not encounter any resistance. Director Ding, if we want to achieve the best results in this matter, we must take two steps and work together. Chang Haonans words calmed down Ding Gaoheng: What are your plans? ?According to his understanding of Chang Haonan, at this time, it usually means that the other party already has an idea or even a mature plan. "On the one hand, we should conduct inspections domestically, especially on key projects, increase the intensity and frequency of random inspections of Japanese companies'' products, collect and retain evidence, and if problems are found, do not alert the snake for the time being, try to delay the other party, and at the same time look for alternatives. suppliers to minimize the impact on project progress. On the other hand, our Torch Group has recently taken on several business cooperation projects with Europe. ?Chang Haonan adjusted his posture slightly and showed a smile: "I know that NSK Group has a branch in Stonehouse, UK, that specializes in aerospace-related businesses. It is currently eager to explore the high-end market in Europe. I think that as long as there is a little guidance in the project, it will not be difficult to let Europeans go Use their products. "Their large-scale counterfeiting cannot only target the Chinese market. I can specifically raise the requirements for the performance of parts so that NSK cannot directly use existing products to supply, and then let the domestic bearing groups prepare in advance. The model that meets the requirements is ''just'' launched on the node." "Whether NSK is directly counterfeiting, or like this time it purchases products from our country and then resells them under brand names, it will not be difficult to obtain evidence when the enemy is overt and we are covert." Wait until then, expose all these things at once, just like the Boeing-McDonnell Douglas merger case, and work with the Europeans to catch them off guard! At this point, he clenched one hand into a fist and knocked twice on the stacked materials on the table: Lets keep these things as evidence of guilt first! (End of this chapter) Chapter 576 The world is changing quietly Chapter 576 The world is changing quietly ?After all, Chang Haonan''s plan has been carefully considered for several days, and it also comes with the prophet buff unique to reborn people, so naturally there is nothing wrong with it. ?So after a brief discussion, it was finally determined and became the official plan of the entire Commission of Science, Technology and Industry for National Defense to deal with this large-scale fraud incident by Japanese companies. ??Moreover, at the end of this enlarged meeting of the leadership team, the plan was given a slightly middle-of-the-road name Generation plan. It means to use this opportunity to reshape the image of China''s industry, replace Japan, and occupy at least a mid-range position in the international supply chain system. This can be said to be a decisive leap. You must know that at the moment, China is still at a low level in this system. Not even low-end. At the low end of the supply chain, it is mainly South Korea. Under normal circumstances, China needs to proceed step by step, such as fighting monsters and upgrading, first entering the international supply chain, occupying or replacing South Korea''s position, and then having the possibility of challenging Japan. ?This is also a task that took China Industry the first 20 years of the 21st century to complete in the previous life. But now, times have changed. ?Due to Chang Haonans contribution to Chinas overall industrial level and the Japaneses own assistance. This process is entirely possible to be completed directly 20 years in advance. Even without the Korean in the middle noticing it at all. ?Similar to a buggy speedrun game, the miscellaneous soldiers and elite monsters in the middle are simply skipped, and only the key stage bosses are fought. Of course, considering the size of China, as long as some of the top companies can occupy the middle position, the army that follows them will not be able to let go of the lower parts... What is industry paraquat? What is a developed country crusher? tactical fallback.gif. ?Of course, these are all impacts that will have to wait until the plan is completed. ?As far as the matter at hand is concerned, the top priority is to conduct a comprehensive supplier reliability investigation in China. ? It is not just Japanese companies, but they must take advantage of this opportunity to eliminate as much as possible those who are involved in key projects and lifeline industries. After the meeting, Chang Haonan was about to pack his things and leave when he was stopped by Ding Gaoheng from behind: Xiao Chang, do you have any work to do later? ?The former looked back and was not sure what this question meant for a while, so he had to give a dilemma answer: "It''s nothing particularly important. Our group has been doing supplier inspections all the time, so there is no need to make any big moves this time. The two major projects of die forging press and Taihang engine are currently on track, so there is no rush. What do you need me to do?" Hearing Chang Haonan talk about Turbofan 10, Ding Gaoheng instantly became energetic and temporarily deviated from the original topic: As for Turbofan 10, I heard that the fan and compressor have basically completed the design process. What is the current progress? For some key projects, progress reports will be submitted regularly to higher-level units, namely the Commission of Science, Technology and Industry for National Defense and the General Armament Department. Depending on the nature and scale of the project, the specific reporting frequency generally varies from quarterly, half-yearly or once a year. This number is determined based on long-term experience and is a balance between the frequency of information updates from superiors and the workload of writing below. In the past, this system has been working very well. Even for projects with relatively fast efficiency, it is generally considered good if they can achieve a little progress worth reporting each quarter, and most of the content will be similar to the last time. However, when it comes to Chang Haonan, between the two reports in February 1998 and November 1997, apart from the author and title, there are almost no similarities... ??If you really want to report every time you do something, then you probably have to change it to weekly or even daily updates... But the project progress report is not like writing an online novel. If it were submitted once a day, neither the person who wrote it nor the person who read it would be intolerable. So, even though it has only been more than a month since I last read the report, Ding Gaoheng cant wait to update it... ?Although Chang Haonan is not in Shengjing recently, he still pays daily attention to the progress of the project, so he naturally answers fluently: Not only the fans and compressors, but also the individual design of each major component has basically been completed. Now Haitong is leading the entire project to integrate the entire machine, and by the way, fine-tuning is based on the matching between different subsystems. "As far as the normal project progress is concerned, the next step should be to conduct component-level performance testing of each component. However, because the design and production of the turbofan 10 are carried out at the same time, before that, we have to wait for the Liming Factory to Coordination and testing of a large number of new processes used. Your progress is so rapid... Even though Ding Gaoheng had been mentally prepared, he was still surprised by the efficiency. You must know that it has been less than a year since Chang Haonan took office as the chief designer of Turbofan 10, and the paper design work has already come to an end. In the past, the technical plan could be finalized only one year after the project was established, and the specific design work had not even started... At the beginning, because the comrades participating in the project came from many different units, it took some time to adapt, and the efficiency was slightly lower. Later, everyones working methods matched, and the progress naturally accelerated. In addition, some comrades who came from small institutions may have slightly worse foundations, but they work very hard and make rapid progress. Some of them could only do some side jobs at the beginning, but now they are able to stand alone..." ?Chang Haonan is still the same old method.????Faced with praise, first praise your subordinates. In this way, every sentence does not mention oneself, but every sentence refers to oneself. Ding Gaoheng opened his mouth, but felt that he had nothing to say technically, so he had no choice but to ask: So are there any difficulties that need to be solved now? During the previous meeting, the budget approved by superiors for the aviation industry this year was nearly double that of last year, so the financial aspect can be slightly more relaxed than in the past. So generous? ?Chang Haonan was also surprised. Increased investment in the aviation industry is not unexpected. After all, the results of the past two years are tangible and the confidence feedback to superiors is very timely and sufficient. However, things like increasing appropriations generally highlight a long-term problem Even if it increases by 20% every year, it will only take less than 4 years to double, which is actually a quite terrifying speed. ??The last time he heard about this kind of thing doubling directly in a year was when the semiconductor industry was just sanctioned before the rebirth. Ding Gaoheng had a slight smile on his face: According to the superiors original words, he praised our Commission of Science, Technology and Industry for National Defense, especially the aviation industry system, for greatly improving Chinas international status and improving the countrys international environment. Comrade Xiao Chang, you should know the weight of this evaluation... ?Chang Haonan suddenly became enlightened. Obviously, this is no longer just a problem of technology or national economy. Rather, it was directly elevated to the level of national dignity. Naturally, it cannot be judged according to common sense. Not to mention anything else, the weight of our countrys words in the WTO accession negotiations is completely different from the past. Ding Gaoheng continued to add: Previously, our negotiations were mainly conducted one-on-one, and we were alone. Basically, we could only rely on the market of 1.2 billion people to negotiate terms with others. But recently, some European countries have begun to publicly express their hope that we can enter the world trading system earlier and contribute to the process of trade globalization. This kind of statement has also put considerable pressure on the United States, which has already relaxed its attitude. Our negotiators can obviously feel that the communication process between the two parties has become much easier..." In international relations, in the final analysis, strength speaks for itself. ?At this time, the United States is not at the point where it completely ignores the opinions of its allies. Even in the previous life, 1998 was basically the pinnacle of European integration thinking. ?Its just that the peak was too short, and the ensuing War of the Yugoslavia quickly dealt a heavy blow to the EU, which was ready to go. Then it went downhill. In today''s timeline, due to Chang Haonan''s operations, the Europeans are even stronger. The right to speak cannot be underestimated. Its just an unintentional act ?Chang Haonan is not entirely modest. ?Such a complicated butterfly effect was indeed not something he could have predicted at the beginning. No matter what, your contribution is real, and this is what gives us the confidence to talk to our superiors. As he spoke, Ding Gaoheng took Chang Haonan into the office and prepared to change clothes and get off work: So if you have any difficulties that need to be solved, you can raise them. As long as the money can be provided, many problems are actually not a problem ?Hand in the middle of saying this, Chang Haonan suddenly remembered something and changed the subject: However, since this is the case, I think we can propose the matter of splitting Aviation Engine Power from the Aviation Industry Corporation. At present, each of the five major military industrial corporations has been divided into two, and the main tone of group reform has been determined. However, the aviation industry and shipbuilding industry, which are more involved, have not yet finalized the specific operation methods. Originally, Chang Haonan planned to postpone it until the Turbofan 10 was finalized and he had enough chips before he mentioned the establishment of an independent group in the aviation development field. But now it seems that there is no need to wait until that later. ?His name alone, Chang Haonan, is already quite convincing. "That''s fine. The boss has not made a final decision yet. If you are sure you want to mention it, I will ask the office to prepare the relevant report tomorrow and submit it as soon as possible." Ding Gaoheng answered as he put some things on his desk into his briefcase, then raised his head and looked at Chang Haonan on the sofa next to him: Come and sit at my house and have dinner by the way. Your Aunt Nie is making dumplings at home today. (End of this chapter) Chapter 577 GPS navigation interference test Chapter 577 GPS Navigation Interference Test When your boss asks you to go home for dinner, even if it is a question, it cannot really be treated as a question ??If you dont answer, it will be difficult to maintain this working relationship in the future. What''s more, Chang Haonan subjectively really wanted to pay a visit. Ding Gaohengs wife is one of the main persons in charge of my countrys underwater launch vehicles, that is, submarine-launched ballistic missiles. An old man who is famous but very low-key. ?Seeing Chang Haonan nodding almost without hesitation, Ding Gaoheng happily put on his hat and picked up his packed briefcase: Lets go, take my car and go together, and let Xiao Zhu pick you up after eating... At the same time, Jinling and Dajiaochang Airport. Xu Yang jumped out of the passenger seat of a Jiefang truck, and together with several people in the car behind, carefully unloaded a cylindrical device placed in the cargo box onto the tarmac. Compared to Beijing, which is still a bit chilly in the early morning or evening, the climate along the Yangtze River has clearly entered mid-spring. ?However, for Xu Yang, a native of Beijing, the climate here is not easy to adapt to. ?She sniffed slightly, feeling a little uncomfortable from the sycamore catkins flying all over the sky just now. ?But at this critical moment, she couldn''t care so much. Gong Guo, go to the back and unload the test trolley and push it over here, and then do a final check to make sure there is no fault! "Others, one group will go to the test area to set up measurement and control points, the second group will go to the end of the runway to prepare to recover the test equipment, and the third group will debug the jammer..." ?Amidst the noise, Xu Yang picked up a large speaker from the car and gave instructions to the crowd in an orderly manner. About half a month ago, she was in the laboratory when she suddenly received a call directly from the director of the Commission of Science, Technology and Industry for National Defense. ?The other party conveyed Chang Haonan''s message, saying that the military GPS receiving module they had been waiting for had been obtained and was on its way to Jinling Electronics 14th Institute. He hoped that she could go there as soon as possible to wrap up the GPS jamming equipment project. ?So, Xu Yang rushed from the capital to Jinling. In fact, 14th had already completed the main hardware part of the GPS jammer before. What Xu Yang needed to handle this time was mainly to write the software part according to the new algorithm and conduct performance testing of the final product. ?According to the expectations of Chang Haonan and Xu Yang, the main function of this jamming device should be to deal with GPS-guided munitions, such as cruise missiles or satellite-guided bombs such as JDAM. But the testing process certainly cannot be done this way. On the captured unmanned submarine, there were only two sets of GPS receiving modules including backup. One of them has been installed in the jammer and is used to translate and distribute signals. The one that can be used to test the jamming effect is Only one remains. Leave aside the fact that China does not have ready-made satellite-guided weapons available at present. Even if it did, it would be impossible to really drop this only set of weapons from the sky. ?It becomes a one-time deal. ??If the first test doesnt go well, you wont even have the chance to try again. What''s more, Chang Haonan also wants to maximize the use of the remaining value after the test process is over, and then build a second jammer... Therefore, the interfered object in the final test plan became a GPS-guided car that can perform simple turning operations and drive to the predetermined target. ?However, this guidance is not automatic driving. The action logic of the car is the same as that of a bomb. After discovering that the route has deviated, it will turn in the other direction until it coincides with the set route, without avoiding any obstacles in the middle. So this test must be conducted in an extremely open area. ?After choosing, only the airport barely meets this condition. ?So we made some contact with the Air Force and used the Daqiaochang Airport as the venue in the evening when all the planes had returned. XCMG, I checked it and found no problems with the hardware or software. ??Guo Lin pushed a metal car about half a person''s height from a distance and said as he walked: But before formal testing, I think its better to conduct a set of controlled experiments to see how it works without interference. Xu Yang nodded decisively: Lets go. Then, together with several fellow engineers, he pushed the car towards the set starting point for the test. XCMG, this GPS jamming pod, it seems that Mr. Chang is very anxious? On the way, Guo Lin casually asked: "In the past half month, he called me four times to check on my progress. Although he didn''t say much each time, it shouldn''t be so frequent." Four times? Xu Yang raised his eyebrows slightly: Why dont I know this even once? ??Guo Lin wiped the sweat from his forehead: Uh... I am always worried that you are under pressure, so I always tell me not to tell you until the project enters testing. Hearing this answer, Xu Yang pouted slightly with a complicated attitude. In her scientific research career, this was the first time that someone else took special care of her progress. In the past, she had always slowed down to adapt to others. Okay ??Xu Yang casually smoothed his hair that was blown by the wind: However, he did inadvertently tell me before that he hopes this thing can be put into use before next spring. He also said that if used properly, it can have the effect of making a huge difference. Before next spring? ?Originally, Guo Lin just asked casually, but this sudden time made him a little strange: Is there anything special about this time...or does Mr. Chang have any other plans? I dont know about that While speaking, the car has been pushed to the starting point of the landing runway. Wait a moment, it will be "released" here and used to simulate the trajectory of a GPS-guided bomb on a flat surface. Path coordinate points 1-10 are set on the runway, 11-14 are set along the taxiway, and 16-20 enter the apron After all, the maneuverability of a four-wheeled car is much better than a bomb that can only rely on its wings, so in order to better reflect the interference effect, the path setting is relatively complicated. It is actually the process of an airplane landing on the runway and then taxiing back to the apron along the right taxiway. Okay, the setting is completed and ready to be released! ?Following Xu Yangs order, the tester turned on the power of the battery. Immediately afterwards, this slightly crude car drove forward unsteadily. ?Xu Yang and Guo Lin followed all the way behind, observing its trajectory. Because the GPS accuracy in the 1990s was still relatively limited, if you look closely, it is actually a bit unclear. ?However, generally speaking, we are still moving forward along the preset route. ?Ten minutes later, the two people and one car successfully arrived at the predetermined coordinate point, which was the location of the motorcade on the tarmac. The deviation is about 2 meters, which is also in line with the accuracy standard of military precision capture codes. Of course, in actual use, since the speed of guided weapons is much faster than this car, the computing power of the chip on the weapon cannot keep up with that of a laptop, and the accuracy of satellite positioning for altitude is very poor, so the hit accuracy generally cannot reach this level. ?Like satellite-guided bombs, the general accuracy will be around 10-30 meters. ?Of course, it is still far smaller than the killing range. Send the car back and get ready to start the interference test! On the tarmac, the experimental team operating the jammer has moved the equipment to a position close to the runway and aimed the transmitting antenna on the side of the cylinder into mid-air. Since the receiving antennas of many GPS-guided weapons have directional capabilities, interference signals sent directly from the ground are likely to be filtered out and require a round of refraction through the ionosphere to simulate satellite signals sent from space. In order to achieve this requirement, the rated power of the entire jammer is very large, and the circuit design is also very clever. It was still completed by Chang Haonan himself. Lets set the interference method, take this runway as the axis, mirror all the GPS signals received within the range, and then re-send them..." Set an exemption threshold to prevent the false signals after processing from being too different from each other and being discovered by the inertial navigation system ??Xu Yang said while setting the interference mode of the jammer on the computer. ?Of course, when this device is officially finalized, there will be several preset interference algorithms to choose from. After checking his settings one last time, Xu Yang stood up and took the walkie-talkie from Guo Lin. All attention, all attention, reporting readiness!. After a brief silence, a report came over the intercom that each group was ready. Four groups, test subjects can be released. After Xu Yang finished speaking, he put down the walkie-talkie, picked up the telescope handed over by the person next to him, and looked at the far end of the runway. ??The car drew a dragon while swaying forward. Looks no different from last time. A measurement and control group, the data is all normal. The first report came over the intercom. Because the interference setting is symmetrical along the runway, there will be no difference in the straight line driving in the first section. Soon, the car arrived at the entrance of the taxiway. According to the route setting, its front wheels deflected to the right. Everyone''s hearts instantly became tense. But soon, the new navigation signal told it that this was the wrong direction. ?Hence, the front wheel of the car turned around and turned to the "correct" left side. That is, the setting that is exactly the opposite of the last route. Measurement and control team 2, the target route has deviated. Measurement and control group three, the target is traveling along the left taxiway... Measurement and control group four, the target enters the left apron area... ?In Xu Yang''s telescope, he could also see that the car was firmly parked on the other side of the tarmac in an almost completely symmetrical position with them. Fuck, its amazing ??Guo Lin, who was also holding a telescope, murmured to himself: Doesnt this mean that the satellite positioning system is completely useless? Thats not the case. Xu Yang put the telescope aside and went to the computer next to him to check the jammers operation log: The effective range of a set of this thing is only two to three kilometers in diameter. In order to ensure the interference power, the size and weight are very large, and it is basically impossible to achieve full coverage of the battlefield. Furthermore, the opponent can also introduce more composite guidance on weapons, equipment or ammunition, especially terminal guidance mode, to deal with our interference. In short, there is absolutely no equipment that can solve all problems. You must not underestimate the enemy... Even though he said this, Xu Yang still showed a bit of joy on his face. Obviously, the log records are running very well. So she changed the subject: However, for some targets or areas that need key protection, it is enough. (End of this chapter) Chapter 578 Single crystal blade investment casting Chapter 578 Single crystal blade investment casting Equipment testing is a very serious matter, and it is certainly not a one-time deal. After several repeated tests, a series of things such as data analysis and performance calibration will be involved. After all the follow-up work is settled, it can be truly confirmed that the equipment has achieved the pre-designed specifications. Therefore, when Chang Haonan received the news that the GPS jamming equipment test was a complete success, it was already three days later. By this time, he had returned to Shengjing by special plane from Beijing and was planning the production of turbine disks and turbine blades at Liming Factory. As a result, just after the opening part of a seminar, he was called out by the confidential secretary, saying that there was an internal call. It took almost half an hour before I came back. "Mr. Chang, have you... changed your plans?" ?Zhong Shihong, who was sitting on the left side, came over and asked softly. Although he has been promoted to deputy general manager of Liming Factory, Zhong Shihong is still personally responsible for the specific production work of the Taihang project. As a business manager with a background as a senior technician, he knew that his administrative level and background were not enough. If he wanted to go further, he could only continue to stick to the technical route. By the way, I also hugged Mr. Changs thigh. Chang Haonan laughed dumbly when he saw Zhong Shihong worried that he would run away at any time: There has been no change. It was just a small project. You just informed me of the results. Dont worry. The former nodded clearly and sat back down again. It''s just that I don''t agree with Chang Haonan''s "small project". ??How can it be a trivial matter that can be asked by Mr. Chang in person during the mid-term meeting? Its a joke. But in fact, Chang Haonan did not tell lies. The scale of the GPS jammer project is not large. ?The only core designers are him and Xu Yang, and from beginning to end, including the testing process, it only cost less than 500,000 yuan. ?Although it took a little longer, the actual work time was less than a month. Originally, the most troublesome part should be the GPS navigation module inside. In the end, the Self-Defense Forces sent warmth directly, or two at a time, with almost no effort. In addition, because each jammer requires a complete military GPS positioning module, mass production is basically impossible. For Chang Haonan today, it is indeed a small job. The reason why he had to ask in person was because it involved a matter that he needed to resolve. A matter on his mind that he has been thinking about how to solve since his rebirth. After a brief interlude, the technical seminar that had just been interrupted naturally resumed. Chang Haonan is already familiar with this kind of scene. Its just that this time the situation is rather special. Sitting with him in the conference room were not only the Liming Factory technicians involved in the Taihang project, but also some of the engineers at the die forging press who were responsible for casting large-size parts of the movable beam. After all, both parts of the work essentially rely on the same technology. Investment casting. In fact, before Chang Haonan actually entered the military industry system, when he was inspected at Beijing Hang University, he once proposed that numerical calculation methods can be used to conduct quantitative simulation evaluations of continuous or semi-continuous casting processes (Chapter 53). At present, the formation process of castings can only be speculated based on experience and preliminary theory. In actual casting, repeated trials and analysis are required to determine the process plan. The purpose of numerical simulation is to accurately obtain reasonable control parameters at each stage of casting molding, including the calculation of temperature field, flow field, stress field and concentration field. Reduce the number of tests, eliminate casting defects, and even perform structural simulation to further control the performance of castings. But it can only be regarded as an idea. If it is really implemented, as a research object that is complex with multiple physical fields, has changes in physical states, and the boundaries of the research system in the entire process are still in an unstable state, we cannot simply copy past experience. Although TORCH Multiphysics is a good enough platform, it still needs to be specially optimized for the casting process before it can be used. Mr. Chang, we can understand what you mean, but how can we accurately express the entire filling and solidification process of investment casting in mathematical form? Fu Jiangwei, chief engineer from Zhaodu Casting Co., Ltd., asked first. Zhaodu Casting was originally a state-owned enterprise affiliated to Zhaodu Iron and Steel Group. Later, during the economic system transition, it was transferred to the chief engineer of the original factory in the form of a share-holding contract. This privatization and restructuring was a win-win situation. Zhaodu Steel Group was able to travel lightly and concentrate on its core business. Zhaodu Casting also gradually grew and grew after getting rid of the restrictions of rules and regulations, and eventually became a first-class supplier for the die forging press project. the only private enterprise. This is not difficult. Chang Haonan pulled the blackboard next to the conference room, picked up the chalk, and then turned back and asked: I would like to ask, Mr. Fu should have some theoretical basis in mathematics, right? The reason why he asked this question is not because he has any prejudice. In fact, in this era, all walks of life are still in the stage where experience is king. Especially in traditional fields such as steel, many technicians are from wild backgrounds and have not received systematic higher education. If this is the case, it may be difficult to understand what Chang Haonan says next. Yes, I am a graduate of Jizhou Mechanical and Electrical College in 1980. Fu Jiangwei nodded and picked up the ballpoint pen next to him When the other party asked this, it was obvious that he wanted to show his strength. It is really not feasible to accurately calculate the entire investment casting process from a microscopic level. But we can change our thinking and divide the research object into a continuous medium composed of infinite fluid microclusters in space, and do not study the movement and interaction of individual molecules during the casting process. Because the macroscopic performance within the fluid is a spatial continuous function, analog research uses macroscopic continuous mathematical methods to study fluid motion. For example, when molten metal flows into the mold cavity, the fluid model is relatively accurately described as an incompressible Newtonian fluid. Therefore, the mold filling process can be described by the mass equation, momentum equation and energy equation, while the solidification process can be described by Approximately a single heat conduction..." ?Chang Haonan was dictating while writing furiously on the blackboard. ?This part of the content may be relatively basic for some people who have done projects with him before, but there are still some understanding barriers for others. All the way up to here. He said and pointed to the last equation on the blackboard: Up to this point, we can complete it with the tools we have on hand, but the later part, that is, the prediction of shrinkage and loosening of the keyhole in the casting, needs to be adjusted based on your experience and some experimental results. To determine the specific state of the shrinkage-porosity keyhole, my current idea is based on the pressure loss of dendrites in the feeding channel during the solidification process. At this point, he filled in a new series of formulas below. That is the parameter design and calibration. ?Chang Haonan threw the chalk tip back into the chalk box, then turned his seat and faced the people in front of him again: I plan to use two to three months to complete the model design of the entire investment casting filling and solidification process! (End of this chapter) Chapter 579 I still got F14 Chapter 579 I still got F14 After the seminar, Chang Haonan asked Zhong Shihong to take him to the newly established precision casting center established by Liming Group for the turbofan 10 project. As the main manufacturer of Chinese aerospace engines, the 410 factory in the past naturally had a casting section. However, both the technical level and the management model are no longer able to adapt to the production requirements of the new era. Not to mention the third-generation turbofan engine, which requires more than one level of higher manufacturing precision, even in the production of castings for the turbojet 14, the efficiency has gradually failed to keep up with other processes, becoming a shortcoming limiting aviation engine production. You must know that Turbojet 14 and its derivatives are the current cash cow of Liming Group. Under this situation, the newly appointed general manager Lin Zuoming simply decided to take advantage of the opportunity to develop the turbofan 10 to reorganize the entire casting section and transform it into a precision casting center integrating industry, academia and research. The university and Liao Provincial University have hired some researchers with reliable backgrounds. ?This era is the most prosperous time for university professors to engage in side jobs, but it is obvious that not everyone has the talent for business. At the end of the 1990s, China''s business community, of course the private business community, was still relatively wild and unruly. The mode of business war also tends to favor war rather than business. A shopping mall is like a battlefield in a literal sense. ?Especially for some science and engineering scholars who have lived on campus for a long time, going out to do business is almost equivalent to giving money to others. ?In this case, being able to find a stable and well-paid position in a large local central enterprise not far from home, even if subject to various restrictions on confidentiality, is definitely very attractive. Several of the people who just attended the seminar came from this background. Judging from the feedback from everyone at the scene, their theoretical foundation and understanding of modern technology are indeed much better than their counterparts who have been working on the front line of factory production for a long time. Mr. Chang, these are the directional solidification furnaces we purchased from Shengjing Scientific Instrument Company in recent months to replace the extensive equipment in the past and are used for the production of turbine blades. Ma Liping, director of the foundry center, stretched out his arm and pointed to several huge pieces of equipment not far away that were five or six meters high, and introduced Chang Haonan. He was previously the deputy dean of the Institute of Materials Forming and Performance Control of Liaoning University, but unlike his colleagues who came here just for part-time work, he was poached by Zhong Shihong with scientific research funding that was ten times higher than before. Can this type of equipment meet the technical specifications for the production of single crystal turbine blades for third-generation engines? ?Chang Haonan circled around the equipment and finally stopped in front of the equipment nameplate. As far as the production process is concerned, equipment is the basis of all processes. ??If the production equipment does not meet the requirements, it will be useless no matter how accurate the parameters are calculated. "It''s hard to say about the other older models, but the one you''re looking at is the latest model. The belt drive shaft and pull-out device have been replaced with new linear motors and vacuum pumps. I can''t say that in the whole world, at least in Asia. The best performing device. Ma Liping said as he took out a technical manual from a net bag next to him and handed it to Chang Haonan: The information on the nameplate is relatively limited, Mr. Chang, you can look at this for more details. In fact, it is enough for the latter to get the answer just now. After all, there are specialties in the profession. Although he specializes in more places, it is impossible to take over all the parts. Equipment matters should still be left to people who specialize in hardware. ?But since the other party had already said so, Chang Haonan still took it and flipped through it. ?Then I discovered that the other partys linear motor was purchased directly through Torch-C.B. Ferrari. The model is exactly the same as that used on the MS45T three-axis machining center. Chang Haonan shook his head helplessly, but at the same time he felt a little unexpected surprise: I didnt expect that the person who makes hardware is myself ?However, when it came to business, he did not spend too long on this technical manual: Since there is no problem with the equipment, in the next period of time, we need to establish a model of the single crystal directional solidification process and then determine the process parameters. ?Chang Haonan put the manual back into the bag next to him, raised his head and looked at the equipment in front of him. After a moment of silence, he discovered that several pieces of equipment further away were probably in production. Only this latest model, perhaps because it had just been put in place, had not started. Are you currently trial-producing turbine blades for Turbofan 10, or are you producing older models? "In the production of old models, the current production tasks are mainly turbofan 9 and turbojet 14. Compared with the past when it was just a casting section, because the number of blades that can be produced in each batch increases, the overall output has increased by about 3.5 times. " ?Although Ma Liping has not been in Liming Factory for a long time, he is obviously very familiar with business matters. Are you still producing turbofan 9? Chang Haonan was actually a little surprised when he heard what the other party said. ?Although he has always regarded Turbofan 9 as a verification project for technical and process testing of Turbofan 10, what can be verified on it has been verified long ago. Even Turbofan 9A has gone through the design finalization process and is ready for mass production. Logically speaking, the business should be returned to Hao Jing. After all, people almost rely on this model to live their lives. Few turbojet 8s cant be built every year. Well, we are responsible for the production of turbine discs, turbine blades and main shaft parts. Ma Liping had just entered the aviation industry system, and he didnt know much about what happened before. He just thought it was Chang Haonan who asked casually, raised his safety helmet, and then continued to answer: I heard that the order quantity for the turbofan 9A is very exaggerated. Haofa probably cannot produce enough production capacity at the moment, especially the hot-end components, so we can only entrust the production to us. Is there such a big demand for turbofan 9A? ?Chaochang Haonan, to some extent, single-handedly presided over the design and trial production of this model, but he still felt it was too outrageous. In his impression, the turbofan 9A model is only used on the JH-7A. But he had inspected the production line when he was modifying the electronic warfare aircraft before, and he was very clear about the production capacity of this aircraft. ?Even if we work three shifts all year round, thats still about twenty aircraft. This is the speed after the introduction of pulsating production lines. ??Its better not to let Haofas side burst into orders. Zhong Shihong, who had been silent just now, spoke at the right moment: Last month, the second prototype of the JH-7A was equipped with a twin-engine turbofan 9A for flight testing. Because this model was considered for export under the name FBC1, some military attachs from potential users were invited to visit. " "Later, the aircraft was not sold, but the Persians felt that the power performance was good, so they went back and accepted the F14AMC improvement plan previously proposed by Shengfei, which was to replace the turbofan 9, and the 1493 radar, and then installed the open The one with the weapon interface..." Watching air shows and buying airplanes is an old Persian tradition. ??This is what Pahlavi did when he bought those F14s. However, Chang Haonan felt that Sheng Fei was playing a little too big this time: All 1493 radars must be installed? The 1493 is the radar planned to be installed on the domestically improved J-11. Technically, it is no different from the 1473 used in the J-10, but the caliber is increased by 200 mm, and accordingly the power and performance in all aspects have also been improved. It is basically one of the most powerful mechanical scanning radars on the surface. Export type, the working frequency band and target processing algorithm have been adjusted. Because they are both in Shengjing and have very close business contacts, Zhong Shihong also knows a lot about Sheng Fei''s situation: The main reason is that the Persians have basically no Phoenix missiles on hand, so they plan to let the improved F14 directly mount the R33. This requires an open weapon interface and a radar with as much power as possible. I fuck Chang Haonan expressed his mood at this time with a simple modal particle. The R33 is a long-range anti-aircraft missile specially used by heavy interceptors in the Soviet era. ?? But the phased array radar on the MiG 31, which has shocking power and size, is absolutely impossible to defeat the F14. Then the export type of 1493 is indeed the only option left. In addition, I heard that in addition to the astonishing total amount of this upgrade transaction, the Persians also left 4 original F14s in good condition in our country for use as imaginary enemy training Even Chang Haonan felt that it took some time to accept such explosive news: Forget it, lets not talk about the aircraft business for now, lets continue talking about the current production situation... (End of this chapter) Chapter 580 Liquid metal cooling method Chapter 580 Liquid Metal Cooling Method After the brief interlude, everyone''s conversation returned to the equipment being produced in front of them. ? Ma Liping took Chang Haonan up the steps and came to a row of operating cabinets: In fact, after the performance parameters of the turbine blades of the Turbofan 10 were determined, we also tried to use new equipment to produce a batch of products. The other parts were fine. Although there were slight flaws, they could be recovered through subsequent finishing. "Only the final solidification process is very difficult to control. The single crystals produced have great defects at the crystal level, and even a large part of them are not single crystals directly. There is no way to remedy this later, so we have to temporarily stop work and wait. Production will resume after the process issues are resolved. While speaking, he took out a packaged turbine blade from the side and handed it to Chang Haonan: This is the most typical one among our previous batch of waste products. "Miscellaneous crystals, freckles, component segregation, excessive oxygen and nitrogen content, large primary dendrite spacing, crystal orientation deviating from the direction of stress, in short, single crystal defects written in textbooks are all collected on this product. " Even if you want to deliberately produce such a waste product, it is difficult to do it. If this thing is not related to the Taihang Project and needs to be kept secret, I would like to take it out and show it to my students..." ?Chang Haonan took the blade and looked at it over and over. ?Of course, it is impossible to see anything with the naked eye. The differences in crystal morphology may not be fully visible even with an ordinary optical microscope. Special equipment is required to detect them. "The Turbofan 10 is still in the research and development stage, and everything related to the project is naturally top secret. However, after it is finalized, these waste products will not be so sensitive. Although it is still not possible to take them away directly, you can take out the photos of the crystal forms. " He said as he returned the "perfect" waste product to Ma Liping: So, do you think this is a problem of adjusting the parameters of the solidification process? Of course yes. The latter nodded: The solidification technology used in this equipment is the currently popular high-speed solidification method. The temperature gradient is controlled through the insulation heating zone in the furnace and the water-cooling tray at the bottom of the casting and radiation heat dissipation. "But when the casting is pulled out of the insulation area, the heat dissipation gradually becomes mainly radiation, and the heat dissipation efficiency drops sharply, causing the temperature gradient at the solidification front to continue to decrease. The produced castings are prone to defects, and the larger the size of the single crystal , the defects become more obvious. "When high-speed solidification is used to produce blades abroad, the pull-out speed must also be finely adjusted. Because the heat dissipation efficiency of the thermal radiation process cannot be controlled, the temperature gradient of the water-cooled part can only be reduced as much as possible to ensure a gradual temperature distribution throughout the entire process. More average. Ma Lipings expression was a bit complicated, so much so that Chang Haonan stood there and thought for a while after hearing it: If this is the case, even if we finally find a process that can stably form single crystals, the production efficiency will be very low? "Well" Ma Liping wiped the sweat from his forehead: Mr. Chang, the reason why this method is called high-speed solidification method is that it is very fast compared to the traditional power reduction method. Its just that the size of the blades of turbofan 10 is indeed a bit too large and the shape is relatively complex, so we can only work slowly and carefully. This is also the main reason for the overall low production efficiency of the third-generation aeroengine Obviously, he thought Chang Haonan was dissatisfied with their production efficiency. ?However, the latter waved his hand: No, what I mean is that since the efficiency of cooling the cold end by thermal radiation is much lower than that of the water cooling plate, why not simply use liquid to cool the entire workpiece? "ah?" Ma Liping was stunned. After a while, he spoke with difficulty: If all liquids are used, then it cant be quenched? Furthermore, the cooling effect of water cooling is too good for growing crystals. Crystals that are suddenly exposed to low temperatures will expand uncontrollably, and the crystal form cannot be guaranteed at all, and..." Before he finished speaking, he was interrupted by Chang Haonan who almost couldn''t hold himself any longer: Of course it cannot be water. The difference between the freezing point and the boiling point of water is only 100C. The range is too narrow for cold-end temperature control and there is no way to operate it. "What I mean is to use a liquid with a large thermal conductivity, high boiling point, low freezing point, and large heat capacity. Directly immerse the roots of the extracted blades in it and use heat conduction for enhanced cooling. In this way, the temperature gradient of the entire workpiece can be large and high. Stable, crystallization speed and crystal quality can be guaranteed at the same time. It has a high boiling point, a low freezing point, and a large heat capacity ?Ma Liping looked at the sky and thought for a while. He originally wanted to know where there could be such a magical thing. But I soon realized that I was wrong. There is a large class of materials that meet this requirement, but they are not usually considered liquids. Then its just...liquid metal? Chang Haonan nodded: From my initial thought, it is best to use aluminum or tin. As you said, the freezing point cannot be too low, otherwise a sudden strong cold will have an adverse effect on crystal growth. This time, Ma Liping did not respond immediately. Instead, he paced back and forth in front of the cabinet, obviously thinking about the feasibility of this technical route. Mr. Chang, if liquid metal is used, there will be more operable variables that need to be controlled, especially when the cooling rate is increased. A few minutes later, he stopped again and looked at Chang Haonan: "At least we have to consider the temperature change of the liquid metal itself after it comes into contact with the crystal. Moreover, even if the thermal conductivity is relatively large, due to insufficient fluidity, a new temperature field will be formed inside the liquid, and this temperature field must be controlled at the same time. , we should also consider that our heating method itself is also uneven..." Don''t even start calculating, even just thinking about it makes Ma Liping feel dizzy. What if we use a uniform heating method, such as microwave heating? Zhong Shihong, who had been unable to speak next to him, suddenly suggested: This can reduce at least one variable Before he finished speaking, he saw two people opposite him looking at him with complicated eyes. Youwant touse microwaveto heat metal? Ma Liping''s voice was a bit unbelievable. ?Just like he did when he faced Chang Haonan. Its just that before he doubted whether his level was not good enough, now he doubts Zhong Shihongs intelligence... ? Microwaves have a skin effect on metals and can only penetrate a very shallow metal surface layer, and cannot heat the entire metal from the inside like boiling water. Its okay ?Zhong Shihong immediately shut up when he realized that he had made a bad idea. In short, if liquid metal is introduced, the control logic will be extremely complicated, including our next process optimization. Every time one more parameter is introduced, the difficulty of optimization will increase exponentially..." Can we...really get results in a few months? When the complexity of the model is large enough, it is difficult to calculate the results even with a computer. ?Especially at this moment, Chinas supercomputing is still far behind the international leading level in terms of hard indicators. Is this... ?Chang Haonan pushed the helmet on his head: I cant say anything about others, but since Im in charge, it shouldnt be a big problem (End of this chapter) Chapter 581 What a huge missile! (Ask for a monthly ticket at the beginning of the month) Chapter 581 What a big missile! (Please ask for a monthly pass at the beginning of the month~) ?After reaching agreement on the technical route with Ma Liping, Chang Haonan led the entire casting research team into a new round of technology research and development. On the other hand, equipment problems must also be solved simultaneously. The reason why the former has been struggling for so long just now is precisely for this reason. After all, it was a new device that I had just bought, so it was a bit of a waste to just replace it. ?However, the two people analyzed it later and found that although the two processes are very different in control methods, the basic principles are very close, so the difference in hardware is not that big. It is completely possible to make in-situ improvements based on the original equipment. Ma Liping finally breathed a sigh of relief. ?As the director of this precision casting center, although he does not carry financial KPIs, as the head of a research institution, he must always be careful with calculations. Therefore, Chang Haonan contacted Shengjing Scientific Instrument Company, which is also a subsidiary of the Chinese Academy of Sciences, through the Torch Group, and asked the other party to improve the solidification equipment of the directional solidification furnace as required and change the original high-speed solidification process to one that he had registered. Patented liquid metal cooling process. ?Of course, the patent licensing fees for these things that Liming Factory has on hand, as well as the subsequent new equipment purchased, will definitely be waived. But if there are other users, then the two companies will add two to one and make five, and the profits will be divided equally. It can be regarded as a cooperation that is not very eye-catching, but has far-reaching impact. ?In addition, software upgrades still require hardware-level support. Compared with the high-speed solidification method in which the cold end is in a complete vacuum state, the new process can control the temperature field of the cold end far more accurately than before, and the specific heat capacity of both liquid tin and liquid aluminum is quite huge, and a more effective induction heating power supply is required. , stirring system, temperature sensor... Fortunately, China''s industrial level has been pushed forward several times by Chang Haonan in the past two years. It has indeed made great progress. Most parts can be obtained domestically, and the more sophisticated ones such as sensors are not the same as those in Europe. With the cooperative relationship, it is not difficult to bypass the technical blockade that has basically existed in name only to buy one with higher accuracy. Its just that this process definitely requires a process. Have to wait. As for the investment casting process model design mentioned above, Chang Haonan has already set up the framework, but still needs enough data to adjust various parameters. So, after determining the specific research plan for manufacturing single-crystal turbine blades and arranging the work, he himself was not as busy as he was in the first few days. On the other hand, because he had to adjust parameters based on the data from the casting process and then feed it back to the production side for new process testing, he could not temporarily leave Shengjing as usual to focus on other projects. In short, I am free for the first time in history. ?Of course, considering Chang Haonans current status, the so-called leisure can only be relative. After all, Shengjing is the cradle of China''s military industry in various senses, especially the aviation industry. There are a large number of research institutes and enterprises under the Committee of Science and Industry. ?Such a great **** is right next to him, and he doesn''t seem to be very busy. ?Such a God-given opportunity, I must try to invite it. Even if you cant invite him, you can at least show respect to the boss. The meaning must be in place. ?Chang Haonan is not a person who likes ostentation, so he refuses most of the invitations that are not nutritious and just invite him to take a look or give a lecture. ?However, Shengjing can be regarded as the place where he started, so there are some places worth visiting. For example, 112 factories and 601 institutes. First of all, he has quite a few acquaintances in these two places, and secondly... He also wanted to see with his own eyes what the Persian F14 was like It is different from the previous F4EC project. Since the F14 has too many places to move, and the number of aircraft that need to be upgraded is relatively small, only 40, at least a considerable part of the life extension upgrade project needs to be carried out in the 112 factory. Not in Persia. To this end, Shengjing Aircraft Industry Group also set aside a space in the final assembly workshop of the old model J-8 to park the three aircraft that were first sent to China. For Factory 112, Chang Haonan is already a regular visitor, so he doesnt make any grand arrangements. ??Its just that the factory director and secretary took the leadership team to the factory gate to greet them in person. ?Then He Ming, an old acquaintance who has now been promoted to chief engineer of Shengfei Group, took Chang Haonan to change into work clothes and went to the assembly workshop that the latter was all too familiar with. Compared with the J-11, although the production of the J-8 series now uses some new technologies such as digital drawings, it does not introduce the pulsating production ideas of parallel operations and collaborative assembly, and still uses the traditional final assembly method. ?Although it is slower, it is actually beneficial at this time. Since there are almost no requirements for site layout, it is enough to have a place to park the aircraft and assemble the frame. It is easy to divert part of the area for other uses. These are the three planes sent by the Persians. ?He Ming took Chang Haonan past two J-8B/Ds that were in different stages of final assembly. This is a previous order placed by the Air Force and has not yet been fully delivered. When they started cutting out materials for production, they were still the most cutting-edge domestically produced fighters in China. Who would have thought that just two years later, Xiao Tiantian would have become Mrs. Niu.??? The two of them came to the other side of the factory building that was separated by a fence. ?There are three F14As in desert camouflage parked here. ?However, only one of them is complete, and the other two have had their iconic swept wings and vertical tail removed. "This complete aircraft is one of the four that Persia sent to us directly in exchange for the contract. It means that it will be slightly overhauled and then handed over to the Blue Army Brigade in Dingxin to form a force similar to the 65th Squadron of the US Army. Highly simulated imaginary enemy troops. ?He Ming walked to the side of the plane and introduced it to Chang Haonan. ?The latter took two steps forward, stretched out his hand and touched the F14, which was still painted with the Persian Air Force emblem, especially the variable wing part. Due to various reasons, China Aviation Industry completely missed the variable sweep wing trend from the 1960s to the 1980s. There were many models that were originally planned to adopt this configuration, but were either ultimately abandoned due to technical or cost issues, or the entire project simply died halfway. ??Although in hindsight, this can''t be considered a bad thing. But purely from the perspective of hobbies and feelings, it is still a bit of a pity. ?In his last life, Chang Haonan was not even able to see an aircraft with a variable sweep wing structure up close. Now it can be considered that a small wish has been fulfilled. This is a good idea, but its a pity that the F14 in the US military is about to be retired. ?Chang Haonan''s tone was slightly regretful. ??Its not because of the retirement of the F14 itself, but because we finally got a few U.S. military active-duty aircraft that can fly. As a result, the actual combat value of the training was greatly reduced. ?He Mings mentality is much better: There is no way. The reliability and dead weight issues of the variable sweep wing were brought up in the mothers womb, and the F14s dispatch on the aircraft carrier deck is not as convenient as the F18s, and the actual dispatch rate is very different. Looking on the bright side, everything is difficult at the beginning. We may be able to get other models in the future. He was just saying it casually now, but he accidentally reminded Chang Haonan. ?If I remember correctly, Venezuela should indeed have a batch of F16A/B fighter jets from the early 1980s... ?However, these are all things for later. After seeing the complete aircraft that had been assembled, He Ming took Chang Haonan to a place slightly closer to the door. ?The other two planes have been dismantled into pieces, and there are still many technicians busy around. A considerable number of them are obviously not Chinese. Are those Persians? ?Chang Haonan raised his hand to signal. ?There is almost nothing in this workshop, even if there are foreigners, they are nothing. No, its the Russians from the Pennant Design Bureau who came over to be responsible for integrating the R33 missiles into those aircraft. They have developed a newer generation of R37 ultra-long-range air-to-air ammunition in the past two years, so they dont care much about R33 and just brought over a few sample rounds. As he spoke, He Ming led Chang Haonan around the two planes and came to the other side of the factory. ?On the special bracket here are two extremely large missiles in terms of air-to-air weapons. Chang Haonan made a rough estimate and was very sure that this thing was thicker than his waist... How heavy is this thing He asked in a low voice to He Ming next to him. The bomb itself weighs half a ton, has a charge of about 40 kilograms, and has a theoretical range of 300 kilometers, but it needs to be matched with the MiG-31 radar to achieve it..." ?However, Chang Haonan didn''t pay attention to the second half of He Ming''s words. After thinking for a moment, he raised his head again: I think this kind of thing should have potential in other aspects Other aspects? ?He Ming didn''t react much for a while. "When we were working on Thunderbolt 11 before, I suggested that the Second Bureau of Electrical and Mechanical Engineering develop an anti-radiation missile based on that. However, I later found that the size was too small, and the range and power were not sufficient whether it was for air or ground purposes. " Chang Haonan pointed to the two R33s in front of him: If there was something of this size, it would probably be a lot more convenient... (End of this chapter) Chapter 582 Innate anti-radiation holy body Chapter 582 Innate anti-radiation holy body ??When we were talking about Project 11 before, China had already purchased a batch of Kh31 series supersonic air-to-surface missiles for trial use in that package agreement. ??There are both anti-ship models and anti-radiation models. ?If nothing else happens, it will soon follow the same example as the previous generation, further introducing technical data, localizing it under the name of YJ-91, and becoming one of the most important off-zone strike weapons of the Chinese Air Force. In fact, in terms of dealing with ground radars and naval ships, this weapon, which weighs about 650 kilograms and has a warhead of more than 100 kilograms, is completely sufficient. Even if the target is withdrawn in time and has already run away when the missile hits, it may still be affected by the shock wave or fragments of the huge warhead. After all, radar is a relatively fragile device, especially if the large antenna part is slightly damaged, it will often cause the entire system to become inoperable, and it will need to be repaired before it can be put back into use. But with every gain there must be a loss. The design purpose of Kh31 determines that it does not require very good maneuverability, as long as it can hit the target at a sufficient speed. On the other hand, Kh31 has another hidden danger. In 1995, the American McDonnell Douglas Company received an order to develop a target missile that simulated Kh31. ??Then they went directly to the Star Design Bureau to purchase a large number of Kh31s without warheads and seekers at a low price, changed the paint and renamed them MA31, and made a lot of money when they resold them... From this perspective, McDonnell Douglass acquisition by Boeing is definitely self-inflicted But in short, although the most critical seeker data is missing, the ballistic characteristics and radar target characteristics of the Kh31 have definitely been understood. ?Although the R33 is relatively clumsy among air-to-air missiles, it is still stronger than ordinary aircraft, especially large aircraft. ??It is also a "new" weapon that has almost never been seen before. If you replace it with an anti-radiation antenna... You must know that the JH-7 that Chang Haonan modified before has the ability to conduct passive search along the radar signal when paired with the air-to-air 100 pod. It can be called an innate anti-radiation holy body. In the future, this electronic warfare platform will definitely be migrated to the J-11, which will also have the ability to launch air-to-air missiles at high-altitude supersonic speeds. If these two are combined, the opponent''s early warning aircraft... Should be very happy. ?Furthermore, even if it is not targeting an early warning aircraft, the range and speed of the R33 are no worse than the Kh31. ?The only disadvantage is its power. ?However, the latter''s need for such a large warhead is mainly due to consideration of anti-ship requirements. If you just hit ordinary ground or air targets, 40kg is almost enough... Hearing Chang Haonans thoughts, He Ming lowered his head and thought for a moment, then nodded: "When you said that, I suddenly remembered that when I went to Luoyi to inspect the Pili 12 air-to-air missile some time ago, Chief Engineer Dong Bingyin there seemed to have mentioned that the original seeker of the R77 had a passive integrated Radar guidance function is tested. "However, it was later discovered that the actual effective attack distance of medium-range missiles is generally only 30-40 kilometers. It is basically impossible to touch the early warning aircraft on the opposite side, and it has no practical value. So later, the seeker of the R77-1 and of course the PL12 was simply removed. With this function, the power and space are concentrated on the active seeker. ?The calibrated range of air-to-air bombs is an ideal indicator when the carrier aircraft and the target are flying at supersonic speeds at high altitudes. But in actual combat, there are rarely such stubborn enemies, so we basically have to fight in half, or even one-third. Well, the idea of ????R77 is good, but it should not be placed on a medium-range bullet. Chang Haonan walked around the two R33s: The Russians are still in a chaotic stage, otherwise they would have already thought of integrating active and passive composite seekers into bombs like R33 and R37. He Ming next to him had already begun to think about how to execute it. He knew that Chang Haonan already had two major projects on hand, and was also responsible for the operation of Torch Group. In addition, the Equipment Industry Department, a slightly strange department, actually had many things under the control of the other party, and it was impossible to do everything himself. ?Thinking about it, only the Luoyi Air-to-Air Missile Research Institute, which has just put the Pili 12 on the right track, is more reliable. So he stopped and asked Chang Haonan, who was circling the missile: In this case, then I will contact Luoyi 014 Center and let them think of a solution? Anyway, I dont take R33 seriously from the side of the pennant. Although the guidance method of this model is a bit behind, the missile itself is still good, and the range is far enough. We can just change the seeker when the time comes. ?At the moment, although the situation in Da Mao is indeed better than in the original timeline, at least the core industrial sector has begun to operate again. However, the overall environment of the country is so virtuous, and the resources available are still very limited. ?A penny is too much for a hero, so the main task now is to finish the projects that were started on the eve of the disintegration but have not yet had time to produce results. However, perhaps because of the serious stimulation from China (or Chang Haonan), compared to the secretiveness in the previous life, their thinking now is in line with the Sukhoi Group that was the first to figure it out. - The technology at the turn of the 1980s and 1990s will only become less and less valuable if you hold it in your hands. Ye Dionysian is lucky enough not to hold back. It is definitely not possible. It is better to get rid of the funds quickly and invest in business reconstruction or new project above. ?In this current situation, whoever can recover from the chaos earlier has the possibility of killing his competitors and regaining his health. ?Times have changed. We are now an independent group company, so there is no need to talk about the martial ethics of the past. In the final analysis, it is actually similar to Europes attitude towards China. Only when you have the strength and confidence can you have the capital to trade on equal terms with others. Chang Haonan on the other side of the missile rack thought for a while and felt that what He Ming said was indeed the best solution. For these projects that are not very difficult, it is indeed the most efficient way for him to propose ideas and technical routes, and then let others implement them. ??This is also the goal he set from the beginning. So he nodded: Thats fine, just leave it to Luo ?But the words stopped abruptly in the middle of the sentence. ?He Ming looked up at Chang Haonan with some curiosity. The latter paused for a moment, the expression on his face changed like a lantern, and then the conversation changed: Forget it, the 014 Center has too many projects on hand now, and the unit establishment cannot be changed casually. There are only so many people, and if we add additional responsibilities at the last minute... Im afraid they will be under too much pressure. In fact, at that moment, Chang Haonan was thinking of Yang Baoshu, whom he had met once when Rongfei participated in the J-10 test last year. Due to overwork and illness, he was already terminally ill at that time, but he still persisted on the front line for several months. It was not until the flood threat faced by prototype 1001 subsided that he handed over the task to his deputy Luo Hairong, and even waited until after the first flight. , before leaving his job and being hospitalized for recuperation. ?However, the condition is too serious and it is too late to save her... This has also become a regret for Chang Haonan. If he remembers correctly, Dong Bingyin, the current chief designer of the 014 Center and the chief designer of the Pili 12 missile, also collapsed at his job due to overwork a few years later. Fortunately, Mr. Dongs problem seems to be a bad heart. There is still a chance to save it. ??Chang Haonan''s sudden change of heart made He Ming a little unable to react. He was stunned for a while before speaking: ThenMr. Chang, what you mean is The former had an alternative just now: The Second Bureau of Electromechanical and Electrical Engineering, oh, it should be called the Aerospace Technology Research Institute after the reorganization. There should be no new missile models under development after the Thunderbolt 11 is finalized. You can contact them. ?Although He Ming still wondered what Chang Haonans purpose was, he finally decided to give up thinking Since it is Mr. Changs decision, it must have deep meaning... Its okay if I contact you. He hesitated again: But Mr. Chang, after all, they are a unit under the Aerospace Science and Technology Group after the reorganization. As a person from the aviation industry system, I just want to interfere in other peoples business with empty words, isnt it..." "Um" ?Chang Haonan also knew that what He Ming said made sense. Normally, it doesn''t really matter, but right now, it is the most sensitive time internally for the five major military industrial corporations to be broken up and reorganized. Hurryly meddling in other people''s affairs may indeed affect unity if not done properly. ?But its not a big problem. He has connections. In this way, you sort out the situation between the Pennant Design Bureau and R33, and send a letter directly to a person over there named Guo Liqiang. He was previously the deputy chief designer of the Thunderbolt 11 missile, and he has some interactions with me. ?He Ming felt relieved and sighed secretly. ??As expected of Mr. Chang, from the time he first participated in the 83rd Project to the present, it has taken two years, and his contacts have spread throughout the entire Commission of Science, Technology and Industry for National Defense system. ?Think about yourself again, after working for twenty years, you havent accumulated such a strong relationship. I suddenly felt a little emo. ?However, this mood did not last long and was interrupted by Chang Haonan''s voice: Lets go over there and see the situation of Project No. 11. If there is really the idea of ??using ultra-long-range air-to-air missiles, then the aircraft level must also take corresponding actions. (End of this chapter) Chapter 583 In three words, let the French spend 1.8 billion for me Chapter 583: Three sentences, let the French spend 1.8 billion for me ??While Chang Haonan is based in Shengjing to solve the precision casting problems encountered in the two projects at hand, his other layouts are also continuing to advance in different ways... A few days later, Bingcheng was 500 kilometers away from Shengjing. ?An A340 passenger plane painted with Air France''s iconic three-color EU paint slowly landed on the runway of Yanjiagang Airport. In 1998, the domestic aviation business was not very busy. Even cities like Ice City, located in the center of the region, were far from the continuous flights that would be achieved in later generations. ?Especially in the early morning or after dark, the tarmac can even look a bit deserted. ?Furthermore, this big guy equipped with four engines is rarely seen here. In fact, it is not difficult to judge from the name that Yanjiagang Airport does not have customs and border inspection facilities. It stands to reason that it cannot handle international flights and can only fly domestic routes. ?However, this A340 is obviously not an ordinary commercial flight. ?As it slowly drove from the taxiway onto the apron, a convoy of several minibuses and cars of different models drove over from a short distance away. A few minutes later, the ramp car docked at the aircraft door, and a group of foreigners in suits filed out and descended to the ground along the steps. The leader shook hands with a Chinese man who had just gotten out of the back seat of the car and was approaching. Hello, Mr. Flamel, welcome to lead your team to Ice City. ?Cui Wenxue is slightly shorter than Le Maire, but he is no less imposing: I wish us a happy cooperation. Nice to meet you too, Mr. Cui, nice to work with. ?After the leaders on both sides said hello, other people behind them also exchanged ritual greetings for a while. The April morning in Bingcheng was still a little cool. Cui Wenxu even had some cotton-padded clothes prepared to prevent these Europeans from coming from afar from getting cold and spoiling the already secure cooperation. ?This is a project that Mr. Chang has personally taken care of and even given him tips on. It must not be messed up. After all, Bingfei Group and Cui Wenxu himself still have to rely on each other for their status. ?However, the temperature in Paris is actually not optimistic at this time of year, so these preparations are useless. Even so, standing on the tarmac chatting all the time is not a good idea, so after a brief conversation, Cui Wenxu still motioned to his staff to take people to the car. ?It is depressing to say that although Bingfei Automobile has developed prosperously under his leadership, when there is an occasion, Bingfei still has to use the car he bought from others to do things. You cant let your distinguished guests travel on Songhuajiang buns. This has always been a worry for Cui Wenxue. However, at the moment, the country''s tendency in the automobile industry is that the "three big and three small" companies are enough. Although there are already more than the six companies that have started building cars, Bingfei, who has little political resources, wants to start from The transition from mini-cars to the larger passenger car market is not easy. The only thing he can count on now is the big tree Chang Haonan. According to some rumors, the latter has a considerable say in the newly established Equipment Industry Department. ??And although Chang Haonan has never directly participated in any of Bingfei''s projects, Cui Wenxue is still keenly aware that the other party is still very concerned about his situation. Mr. Le Maire, we have already read the cooperation invitation and related materials you sent. We can start discussing the specific details when we arrive. This is not urgent ? Flamel, uncharacteristically, did not continue: This is my first time coming to China. At least on the way, Id better not talk about work yet In fact, in addition to being an aircraft designer, he is also a history buff. ?Before coming to China this time, Le Maire had learned a lot about the situation with friends who participated in last year''s negotiations, especially the part where the European delegation was taken out to visit the monuments. He felt that he should have a chance this time. ?However, it is obvious that the French clearly lack the concept of China - ?Last time, Le Maires colleagues went to Haojing, which is about 2,000 kilometers away from Bingcheng. ? And France spans only 1,000 kilometers from east to west and from north to south... ?But Cui Wenxue didn''t know this. He just thought it was the first time for a foreigner to come to China and wanted to see the street scene, so he asked the driver to take the convoy around for a few times. As a result, the more Flamel looked at it along the way, the more he felt that something was not right. Why does it feel like going home... Is this your art gallery? ?He asked, pointing to a splendid palace-like building under the rising sun. Cui Wenxin said that I didnt even know we had an art museum here. Curiously, he bent down and glanced out the window, only to realize that he was pointing at Bingcheng Pharmaceutical Factory No. 6... Ah...no, this is our pharmaceutical factory, which produces medicines. ? Flamel opened his mouth, but in the end nothing came out. Cui Wenxue next to him was a little worried that Bingcheng''s relatively chaotic urban planning and the relatively poor public security and sanitation conditions in the old city would embarrass China, but seeing the French guy next to him acting like a countryman entering the city, it didn''t matter. Worried... Chinese people in this era generally wear several layers of filters when it comes to foreign situations. In fact, for Le Maire, the new Paris flag is white. chaos? Chaos is the only way to go! Along the way, Flamel quickly lost interest. ??But no matter how boring my request was, I couldn''t give in, so I had no choice but to force myself all the way to the Bingfei Group. Then, the two sides came to the conference room that had been prepared long ago, set up their positions, and sat down separately. The cooperation intention between the two parties has been determined during the previous contact process, so there is basically no need to test this one today. Cui ?After a brief opening remarks, Flamel wanted to speak, but as soon as he uttered a syllable, he was overtaken by the other party. Mr. Le Maire, since we want to cooperate, we must first show some sincerity. Cui Wenxue said as he dug out some information he had received before, as well as some technical documents related to Zhi-9: According to the calculations of our technical staff, there are some systemic flaws in your design method of the helicopter transmission system. "Originally, this problem was discovered by us on the Z-9, which was your AS365 helicopter that was introduced before. It was just treated as an example at first, so it was solved without taking it seriously. But after seeing After you recently sent us the information, we performed back calculations based on the above performance calibration and found that similar defects still exist, but the extent of their manifestations is different. As a partner, I think we should let you know about this situation as early as possible and make corrections in time to avoid causing greater losses. Three sentences, which directly confused the French delegation opposite. You call this showing sincerity? Why do I feel like Im showing off? Yes, our products are defective and we know it. ??But to be brought up in such a brazen manner is a bit of a slap in the face. ?Also, what does "it''s solved easily without taking it too seriously"? Do you know that we did not solve this problem until the third improved version of Dolphin? Be a human being! Do you still want us to express our gratitude? impossible! ?However, having said that, there is nothing the French can do to refute. The problem with dolphins exists. As for whether NH90 has the same problem... Originally they thought it didnt exist. But after the Chinese people said this, they are not so sure now... After all, the first two prototypes of this aircraft had already been tested and had a lot of problems. ?As a result, the atmosphere was so deadlocked for a while. Mr. Flamel, I know you are in a hurry, but please dont be anxious yet. Cui Wenxue, who had the head start, took out the cooperation plan that he had already prepared and handed it over in one portion per person: We have prepared two ways of cooperation. Which one do you like more? We will discuss it in detail based on that one. Flamel''s momentum has now weakened by half. In order to avoid being unable to get off the stage, he quickly distributed the plan to other people in the same party, and then opened the one in front of him. ?This one is more of a supply contract than a cooperation plan. ? Bingcheng Aircraft Industry Group has promised to help Eurocopter Group design two new sets of technical solutions for AS365N2 and NH90 respectively, including the transmission system, front fuselage, main rotor and tail rotor, with a quotation of US$1.8 billion. ?However, if euros enter circulation during the implementation of this project, the equivalent amount of euros can be used for payment. Mr. Cui, this quotation is really outrageous... The people of Le Maire were all stupid: Your country introduced all the technology of the Super Hornet helicopter that year, plus 14 complete aircraft, and the total cost was less than 180 million US dollars..." Eurocopter is not short of the US$1.8 billion. The problem is that NH90 is a military project, and other places can turn a blind eye, but the expenditure must be audited. When the Ministry of National Defense comes to check the accounts, they find that we designed a military helicopter, but you clearly gave 1.8 billion to the Chinese... Im afraid I cant get rid of the communist hat. After all, that was twenty years ago, and the U.S. dollar back then and the U.S. dollar now are obviously not the same thing Cui Wenxues rebuttal was clear and logical: Besides, dont you know the specific situation of the Super Hornet better than I do? Your countrys own aviation forces refused to use it. If our country hadnt been in urgent need of a medium-sized helicopter to perform ocean missions, that model wouldnt even be worth 180 million... Once the fire came down, a dozen French people on the opposite side remained silent. After all, they really have no control over this matter. At that time, to be honest, it was because China did not know much about the business and used some tricks to sell the aircraft. Flamel, who was a little dizzy, just felt that something was not right. From the moment they entered this conference room today, the situation developed in a direction that was completely uncontrollable for them... (End of this chapter) Chapter 584 Mr. Chang has clever tricks (please give me a monthly ticket) Chapter 584 Mr. Changs clever trick (please give me a monthly vote~) Faced with the current unfavorable situation, the Frenchs first reaction was naturally to resort to procrastination. As the saying goes, one can make great progress, then it will weaken, and three times it will be exhausted. This is not only true for war, but also for negotiation. From Le Maires perspective, since Cui Wenxue chose to launch attacks at the very beginning of the conversation without even giving them a chance to speak, he obviously wanted to use three axes to achieve a quick victory. ?Of course, at the beginning, it was suppressed as it was just now, and I couldn''t even speak for a while. If I suffered a small loss, I would definitely not be able to escape. But after all, no matter what Eurocopter says, it still has a lot of chips in its hands. ?As long as we can stabilize our position and drag the situation into the later stage, it may not be impossible to regain some of the situation. ?After thinking about this, Flamel calmed down a little and began to talk about him in circles, bypassing the core topic. Cui Wenxue, who was opposite, was not in a hurry. He just calmly opened the black notebook in front of him, pressed the ballpoint pen, and pretended to be listening and taking notes. For most people, when writing something, their thinking ability will be affected to some extent. ?However, when Cui Wenxue needed to speak, he was still able to answer with ease and fluently. ?The Frenchman across from him couldn''t tell any clues across the large conference table, and just thought he could multi-purpose. There are not many people who have this kind of ability. ?With this coming and going, the pressure on me became even stronger. ?However, the people on the Bingfei Group side can see it clearly ??The notebook in front of Cui Wenxue was already full of writing. He just took a ballpoint pen and stroked it in the void, pretending to be writing. During the process, the technical representative from the French side, Kurt Jean Pierre, also tried to make some insinuations to see if he could use words to get out some details about the transmission system problem of the Dolphin helicopter. ??However, Cui Wenxu''s response was watertight, and he didn''t reveal anything useful. This is natural. As a general manager with a background in car manufacturing, he actually doesnt understand many technical issues in the helicopter field. From the source, there is no possibility of saying "Tululuzui". ?As for Guo Jingshan, who is knowledgeable about technology, he has been sitting in the inconspicuous third seat and has never spoken a word. Even in turn, a lot of interesting content was analyzed from the lines of the other party''s temptation. The result is that as time passes little by little, the momentum of the Chinese side does not weaken as the other side imagined, but the French side is a little confused first. ?Seeing that they could not open a breakthrough for a while, the Le Maire people felt a little numb. ?? He found that the other party''s level of writing nonsense literature was higher than his own. If he continued like this, he would only lose his armor completely. ?So we had to hang up the no-war sign and expressed the hope that the meeting could be adjourned midway. Faced with such a reasonable request, Cui Wenxue naturally would not refuse. So the two sides agreed to restart negotiations after 20 minutes. ?Looking at the French people getting up and leaving the negotiation site one after another, the latter leaned his upper body on the back of the seat, shook his head slightly, and whispered to himself at the same time: Its so hard to imagine playing war games with us Chinese people It is true to use one force of strength and then weaken it again and again, but the premise is that the opponent must keep punching in the air in order to achieve the purpose of consuming the opponent''s military strength. But after the three axes at the beginning, he did not make any moves at will. Instead, he steadily put pressure on the opponent and continued to accumulate advantages. In this case, of course, the one who will be consumed will not be our own side. At this time, Liu Hongbo, who was sitting second to Cui Wenxues left hand, turned around and gave a thumbs up: Mr. Cui, you are awesome. Its like leading the opponent by the nose. In fact, according to the serious ranking, he should be ranked third or fourth in the Bingfei negotiation team. ??Sitting next to Cui Wenxue today is to interfere with the other party''s judgment in a sense. Hearing the other partys compliments, Cui Wenxue waved his hands and smiled mysteriously, then turned the notebook in front of him to face the other party: "Ashamed, ashamed, many of the other party''s reactions have been predicted, just respond according to what is written in the book." Liu Hongbo took a closer look and found that the notebook was densely filled with preset questions and answers, many of which were the same tricks that the other party had just used to dig holes. ?It seems that Cui Wenxu not only does not have two interests, but also holds a strategy book... ?No wonder the other partys game experience is extremely poor. Thats what Mr. Cui has prepared... Liu Hongbo speaks very nicely. ?However, Cui Wenxue leaned his head slightly and whispered: Its not that Im well prepared, its that you are always well prepared "Clam?" Hearing the name of his junior brother and boss, Liu Hongbo looked a little surprised. He never expected that Chang Haonan would appear in a role here. Two days ago, when Mr. Chang told me about this project, he planned a negotiation model for the French, and he also accurately predicted the reaction of the other party. You see, these are all correct guesses. Although some of them are not completely correct, they can also be used as references..." ?Cui Wenxue was not prepared to hide anything. After all, Liu Hongbo is different from others. He is from the Torch Group, not Bingfei, and he will know what is going on sooner or later. How about taking the opportunity to say a few nice words about Chang Haonan. If it reaches the other party''s ears, it will be a bonus. "this" Liu Hongbo didnt know what to say for a while. ?Let''s just praise Chang Haonan on this occasion. It''s a bit of a shameless flattery to the boss, which is not appropriate. But other than being awesome, I really have no other ideas. He suddenly remembered a plot in the Romance of the Three Kingdoms - when your protagonist enters Wu, you should receive these three tips. There are three clever ideas in the bag, follow them one by one... Just when his thoughts began to let go, Cui Wenxue continued to add: In fact, Mr. Chang even thought of calling a timeout among the French, and specially arranged for an off-game call..." Liu Hongbo shook his head helplessly and leaned back in his chair. Yes, its a great plan. He originally thought that there was a big gap between himself and his junior brother in terms of research level. But now it seems that the research level may be the part where the gap between them is relatively small... At the same time, there was an entrance to a lounge arranged for the French delegation. ??A dozen people from Eurocopter and the Aerospace Industry Association are getting together to study countermeasures for the second half. The reason why they did not go into the lounge was mainly because they were worried about being eavesdropped. Although judging from the performance of the Chinese people just now, it seems that there is no need to do so... The problem now is that our technical shortcomings have been clearly discovered, but we dont know what leverage they have ?Pierre frowned and complained with some distress. He had already thought before he came that China knew something about Eurocopter''s situation. But I didnt expect to understand it so deeply. So are they bluffing? I mean, they said the NH90s drivetrain is also defective. At the beginning, Flamel was a little intimidated by Cui Wenxue''s determined tone and posture, but now that I think about it... It seems a bit fake. You must know that the information he sent to China before was almost all about performance parameters and the like, and did not involve specific design and production details. ??This can also be pushed back, which is really crazy. I...cant guarantee it. OPierre pulled back his hair and shook his head: Our entire transmission system design route is indeed deeply influenced by the AS365 model, but the NH90s transmission system is actually partly responsible for the Germans..." As more countries participate in joint R&D, it is always difficult to avoid such a situation. Then lets As soon as he started talking, Flamel heard footsteps coming from the stairs on the other side of the corridor. ?There are also sounds of conversation mixed in. ??Moreover, its not Chinese. Several people subconsciously turned their heads and looked over there. Soon, several figures walked down the stairs. Judging from the face, he is European. Immediately afterwards, Flamel realized that the conversations just now should be in Italian. ?Then, the identities of these people on the other side are very obvious. ?At the same time, the people on the opposite side also noticed them. The two sides looked at each other for a few seconds across half a corridor. Those people should be Italians. After the other party continued to go downstairs and left, Flamel judged in a low voice. Unexpectedly, Pierre was more sure than he was: Yes, two of them are engineers from AgustaWestland, and I know them. One of them was involved in the NH90 project before, but suddenly there was no news a few months ago. It turned out to be here..." I remember you said before that there is a 6-7-ton helicopter cooperation project between AgustaWestland and China? ??????Le Maires tone was a little dry: Is that project also being carried out here? In fact, in this era, few foreigners can understand the relationship between the research institutes and manufacturing plants under the aviation industry system, because in most cases, when dealing with them, everyone will use the AVIC vest. ?So although he had known about this for a long time, he never thought that he would meet the Italians in Ice City. OPierre nodded: Yes, the model should be called AC139. It is a 15-seater model. It is aimed at the high-end business market and focuses on comfort and high speed. The two of them suddenly felt a sense of urgency. ?Although the AC139 model itself has no overlap with the NH90, who can guarantee that AgustaWestland will not abandon them and create another 10-ton model with China? ??When it comes to selling teammates, the Italians are definitely famous and have no psychological baggage. "no." ?After his brain was running rapidly for a while, Pierre made a judgment: We cant delay it too long. There are more and more problems with the two test-flying NH90s. If several other cooperating countries or startup users run out of patience, we will suffer huge losses..." Flamel also gritted his teeth: In this case, didnt they just say they were preparing two ways of cooperation? How about we take a look at their second plan? (End of this chapter) Chapter 585 NH90 straight 12, isomers Chapter 585 NH90/12, isomers ??The accidental encounter between Eurocopter and AgustaWestland in the corridor was certainly not a coincidence. ??This is exactly what Cui Wenxu said Chang Haonan arranged for the "extraordinary move". ?Of course, its not as outrageous as the Prime Ministers residence on Pingwu Road. ??It just provides an operational idea to drive away the tiger and swallow the wolf, giving Eurocopter a sense of crisis. As for the specific operation, that is, how to arrange the meeting in a less rigid manner, this was actually done by Cui Wenxue himself. ?But no matter what, the final effect is good. Because Pierre is really a little anxious. In fact, this is also one of the huge obstacles facing European integration Even if we only look at the six initial member states of the EU, they have had so many grievances and grievances in history that they are countless. Even if their wariness and prejudice against each other are not expressed openly, it cannot be achieved by a piece of paper agreement. Eliminated. ??Had the treaty been effective, Chamberlain would have been canonized physically. Not to mention that the EU later admitted a bunch of small countries that had historically had complicated relations with the original six countries, and even brought in troublemakers like the UK with ulterior motives. Chang Haonan took advantage of this. In fact, even without the interference of the United States, an integrated Europe cannot truly become a pole in the world. Therefore, he must gather more wool during the limited time when the EU is in power. The twenty-minute break passed quickly, and the French team returned to the conference table. ?But this time, they no longer had the same leisurely mood as before. After a few rounds of non-nutritious content exchanged between you and me as usual, Flamel pretended to be nonchalant and said: "By the way, Mr. Cui, when the negotiations just started, you said that you prepared two ways of cooperation. We just discussed the first one." Since we cant agree on the amount of the payment for the time being, how about we discuss the second option? In fact, reaching this point means that he has begun to compromise. Because normally, this situation of "choosing between two options given by others" inherently means losing the initiative. It should take turns to propose conditions. ?However, the conditions they prepared before coming to China were really difficult to put forward after their trump card was revealed at the beginning. ?Actually, if things were left to normal, there would be nothing wrong with raising the price and paying back the money. Le Maire was indeed working in this direction in the first half of the negotiations. He wanted to wait until the situation improved slightly, then put forward his own plan, and then neutralize it little by little. But the Italians he suddenly met during the break gave him some concerns ??In case the conditions between the two sides are too far apart and the negotiation fails directly, the Chinese can still have a plan B, but Eurocopter will have a difficult time. ?Its impossible to go to Sikorsky to cooperate, right? Someone else is the manufacturer of the Black Hawk helicopter, and then you go to them to develop a competing product of the Black Hawk? Hence, Le Maire is obviously a little constrained and does not dare to go too far in terms of conditions. For negotiation, this is equivalent to fighting someone with a sandbag tied around it. ??Moreover, he suffered three blows first. Disadvantages are inevitable. Cui Wenxue, who was sitting opposite, was naturally aware of this change in attitude, so he tried not to laugh out loud, and at the same time motioned to the staff next to him to send several other prepared documents to the members of the French delegation. In fact, this second cooperation plan is the condition that he, or Chang Haonan, really wants to put forward. The first one of US$1.8 billion was just to scare the Europeans first. ? ?People all over the world like to compromise, open a window...take down the roof... Ahem. Flamel secretly took two deep breaths to calm down, then pretended to be calm and opened the folder in front of him. The model of this plan is much more complicated in comparison. In short, it is essentially the same as AgustaWestland, both parties work together to engage in joint research and development. Huaxia is still responsible for the rotor system, transmission system and front fuselage, while Eurocopter and other NATO partners are responsible for the aircraft''s avionics system, human-machine interaction system, cockpit system and safety system. Basically, the ratio of development components is 50:50, but... ??Pierre, who was next to Flamel, frowned. He found that the most critical power system was not in this plan. ?But at this time, he was a little unsure whether he should speak, so he glanced to the side and found that Flamel was bowing his head in deep thought. I discovered that the power system of this aircraft does not seem to be included in your development task allocation. ?Pierre sat up straight and spoke slowly: "This is the core part of a model. If you include the RTM322-01/9 that we solved, the proportion of this development component should be at least 65:35..." About power systems. Cui Wenxue turned to the next page of the notebook in front of him. The first content was this question. He only needed to organize the language a little: I know that during the joint research and development process, you actually considered two power systems, namely the RTM322-01/9 you just mentioned, and the T700/T6E advocated by Fiat Group. Actually, the current shortcomings of the NH90 transmission system should also be related to your forced requirement for maximum compatibility with these two power systems. Hearing this, Pierre, who had looked calm just now, almost stood up: Can you solve this problem? Originally, NH90 had already made plans to abandon the T700 series engines. But firstly, Fiat has a tougher attitude. Secondly, the T700/T6E engine is a common power system for EH101 helicopters, UH60 helicopters and AH64 helicopters. If the two can be compatible, it will be helpful for the NH90 to seize the 10-ton class in the future. There are huge upsides to the helicopter market as well. So if you cant give up, its better not to give up. Since we are responsible for the research and development of the transmission system, we will naturally be responsible for solving these problems. ?Cui Wenxue replied with a relaxed expression. Actually, he didnt really know the specific difficulty of the operation. He just felt that since Mr. Chang had written it like this, it shouldnt be particularly difficult to solve it. After a short pause, he continued: Not only that, other engines of similar size and power can also be matched with the aircraft by replacing limited transmission system parts, so the power system on this helicopter is closer to the optional module, not to mention, whether it is T700 or RTM322, It is not available to us, so it cannot be included in the joint development share. Compared with the already impressive turbofan engines, Huaxia is basically blank in the field of turboshaft and turboprop engines. Although there has been some improvement under the leadership of Chang Haonan, there is still a long way to go before a complete model lineage. Way to go. ?However, in the short term, it is not impossible to directly use two power-reduced versions of TV3-117 or VK2500. After all, the power systems of the Mi-17/M-171 helicopters currently being used extensively by the Army Aviation Force are also these two models, which will not cause any logistical trouble. At this point, the French side has also understood that China is also preparing to develop a NH90 shell replacement product. Mr. Cui, there is no problem with this cooperation plan, but our laws and regulations have very strict restrictions on the military use of products. If you want..." Before Flamel could finish speaking, Cui Wenxue raised his hand to indicate that this was not what he meant: Mr. Flamel, I think you have misunderstood. Our plan is not to follow the normal joint development model. Then what do you mean Flamel looked down at the document in front of him again and felt that his understanding just now seemed to be correct. ?Cui Wenxue adjusted his sitting posture and lowered his head to look at the last content written on the notebook. In fact, even when he first heard Chang Haonan''s idea, he said it was outrageous. But he was finally convinced. ?He spoke slowly: "Both of us are working on separate projects. Yours is called NH90, and ours... It hasn''t been decided yet, but it may be called Zhi-12, or something similar. After the project is established, we will act as each other''s subsystem suppliers, not partners. " In other words, your company provides related technologies of avionics system, human-machine interaction system, cockpit system and safety system to our Z-12, while we provide a complete solution of rotor system, transmission system and front fuselage to NH90 " After the event was completed, the two models broke up. We developed both models independently, but there were some international suppliers. In this era of globalization, this should not be surprising, right? (End of this chapter) Chapter 586 The hole has been dug, waiting for someone to jump Chapter 586 The pit has been dug, waiting for someone to jump ??Le Maire feels that his experience over the years has been ruthlessly challenged. ?After listening to the specific plan proposed by the other party, one of his thoughts was - can it still be done like this? But if you think about it carefully, it doesnt seem to be a problem. ?This kind of gameplay really cant fool even a fool. The whole world knows what your two models are, but you can really circumvent regulatory restrictions. Of course, in comparison, the Chinese people are equivalent to creating a brand new model from scratch without paying additional costs to each other, and the NH90 has already invested a lot of resources. ??If you want to talk about it, Eurocopter Group is at a small loss. But as far as the current situation is concerned, it is quite good to get such a result. ??And in the final analysis, the reason for this small loss cannot be blamed on the Chinese people. It was completely caused by the intrigues of several partners. ??Now it is quite good to be able to stop the loss of NH90, a project that is at risk of being unfinished. ?Hence, Flamel already agreed with this plan in his heart. ?But of course there is still some tension in the scene. Otherwise, if you bow your head too quickly, it will easily allow the other party to take advantage of you, and subsequent cooperation will be difficult to carry out. Mr. Le Maire, before formalizing the cooperation plan, we still have several important details that need to be confirmed with you. After a slightly relaxed exchange of views, Cui Wenxue also knew that this time it was basically stable, so he changed the subject and began to complete another task assigned by Chang Haonan: "Since it has been determined that we will be responsible for the rotor, transmission and front fuselage, the relevant parts parameters and process selection must be exactly as we said and cannot be replaced casually. Of course, on the premise that the parts meet the requirements, We will not impose any restrictions on suppliers. ? Flamel just felt a little strange. After all, this is something that almost every serious technical person knows, and it seems that there is no need to emphasize it again: This is natural. We have all received professional training and cannot casually modify the technical solutions provided by suppliers. Why do you have such concerns? Thisthere is no way, its also some lessons learned from the past. ?Cui Wenxue picked up the cup and took a sip of water: You have done business in the European and American markets before, and your contacts are all relatively high-end customers, so you may not have this experience. But we mainly deal with the sinking market, and we have seen all kinds of customers, so we must add this content, otherwise it will be easy to make things unclear..." Simply put, beware of fools but not fools. Party As magical operation is something that Party B cannot fully take care of even if it exhausts its imagination. ??It is more convenient to add a disclaimer directly to the contract. ?His words made Pierre frown, and even felt a little sorry for the Chinese counterpart opposite him. Its hard to imagine what kind of customer could force such cautious habits. ?? And Flamel wrote down this content directly in his notebook. Let the legal departments of domestic aviation companies learn from it when they get back... ?But in fact, when Chang Haonan made this request, his intention was not to avoid responsibilities, but simply to dig a hole in this area. Of course we are not digging a hole for the Europeans, but for the Japanese. Although he said that "there will be no restrictions on the choice of suppliers." But this is just like the Carrot Gang during recruitment. I''ve set out a lot of restrictions so that you can only find ready stock from one supplier. This is why it was emphasized earlier that component parameters and process selection cannot be changed indiscriminately. ? Having said that, if NSK Group just puts a brand on the bearings it buys back, Chang Haonan would not be able to do it very well. ??However, in order to surpass the original products of Bingcheng, they secretly modified some parameter calibrations to make their OEM products look more powerful. This is completely giving assists to Chang Haonan. Actually speaking, the Japanese have a very high level of counterfeiting. ?The parameters they marked in virtual formats have been calculated and are not marked randomly. Generally there will be no problems. After all, in most cases, designers will leave enough margin. Including the virtual markup, it is nothing more than leaving 15% and turning it into 5%. ? At best, it affects the reliability of some limit states outside the technical manual. In fact, this is the main reason why many Japanese companies dare to make counterfeit goods and have not been discovered for decades. It was not until more than 20 years later that as the level of human design became higher and higher, there was no need to leave as much margin as in the past, but the Japanese failed to keep up with the times, and the problem gradually became be exposed. ?However, with Torch Groups current level of calculation, it can already grasp the nuances and make things big. After finalizing the most critical part, the rest became much more normal. ? So much so that the person who even asked was no longer Cui Wenxue, who secretly copied the answers, but Guo Jingshan, who was really considering the technical issues of helicopter design: Also, we are only responsible for the front half of the fuselage design. Although it is an independent part, we still need to connect with you in this area. Ive read the information you sent before. Using integral composite materials to make the body is simply too whimsical. Although it can reduce the weight a lot on paper, it will be a complete disaster in terms of maintenance. Helicopters are different from fixed-wing aircraft. Most of the flight conditions are in the troposphere where the environment fluctuates violently. The requirements for damage resistance and ease of maintenance once problems occur are very high. "There are also the cabin floor and the tail door ramp. These two parts are definitely touched during cargo loading, unloading and transportation. It is impossible to avoid bumps and bumps. You also specially promoted this springboard tail in your materials. The door can directly load and unload small vehicles, but it has to be made of carbon fiber with insufficient impact resistance. Doesnt it mean that it needs to be replaced every few missions? " ??The more Guo Jingshan talked about it, the more outrageous he felt. When he made the decision to introduce the Dolphins, he felt that he could only look up to the opponent. ? It turns out that only a dozen years have passed, and Europeans have become so unreliable that even he can see the flaws in the design at a glance: "Therefore, we think we should still use lithium aluminum alloy and traditional riveting process. If we must reduce weight, we can try to work **** the structure. But if you insist on using composite materials, then if there is a problem with the life of the fuselage in the future, We cannot be responsible." Hearing these words, the mood on the other side was very stable. ?Pierre even showed a gratified smile that resembled a hero: You dont have to worry about this. The technical information sent previously is for the two current prototypes. We have also discovered problems with large-area carbon fiber materials. Replacing lithium-aluminum alloy is also our next plan. As for the weight reduction issue, the NH90 left a large enough take-off power redundancy at the beginning of the design, so it is not a big problem. The subsequent talks ended in such a cordial and friendly atmosphere. On the Chinese side, Bingfei Group is naturally very satisfied. Not only got another foreign cooperation project, but also perfectly completed the additional tasks assigned by Chang Haonan. No matter how you look at it, its a win. As for Eurocopter, its not a loss anyway. It can be considered a happy ending. Except for the NSK Group, which is still completely in the dark... (End of this chapter) Chapter 587 Turbofan 10 turbine blade production begins! (Please support me with monthly votes) Chapter 587 Turbofan 10 turbine blade production begins! (Please support me with monthly votes) ?This kind of cross-border cooperation, especially such an unusual cooperation model, naturally cannot determine all the details in a day or two. ?However, the intentions of both parties are indeed very strong, and the areas they are good at are almost completely complementary, so there is nothing worth wasting too much time on. ?Especially for Eurocopter, since this cooperation is conducted in exchange, it does not even involve money issues, and there is no concern of being audited (although they have indeed shared it). It can be said that it is as if it is tailor-made for them. Therefore, in less than a month, the details of the NH90/Zhi-12 project jointly carried out by Bingfei Group and Eurocopter were notified to Chang Haonan. It also means that his plan has basically been more than half successful. Next, just let Liu Hongbo make targeted calibrations on the transmission system, especially the gearbox part, and then wait for the Europeans to find problems. No matter how you say it, Eurocopter is still a well-known giant in the helicopter industry, so it is unlikely that the cause of the accident cannot be found out. Moreover, when that time comes, Chang Haonan will definitely help them. When he received the news, he was in his chief designer''s office, looking at the experimental data submitted in front of him, and adjusting the model of the single crystal solidification process. Several core personnel involved in the Turbofan 10 project were also present, so naturally they saw the contents of the document. After all, information about external cooperation is not something that needs to be kept secret. ?Wuchi Haonan knew earlier, and someone would come to inform him. If others wanted to know, they would have to ask themselves. "Mr. Chang, Bingfei''s cooperation method is... very wonderful..." ?He Ming turned the pages of the document to the end, and his whole feeling could be said to be enlightened: "Just by modifying such an inconspicuous operation in the name of the article, we can circumvent many regulations against us. This is great news for foreign companies that want to cooperate with us but have difficulty in operation. ! Whoever came up with this idea is definitely a genius As he spoke, he smacked his lips with unfinished content. Obviously, He Ming did not know that the genius he was talking about was right in front of him. Hai Yide, who was sitting on the other side, knew more about the situation and laughed when he heard He Mings emotion: "Mr. He, the person who came up with the idea is sitting here..." As he spoke, he pointed with his pen at Chang Haonan, who was sitting in the first place. "ah" "this" The conference room was filled with cheerful air for a while. Well, I came up with this method after getting some inspiration from foreign experiences. ?Chang Haonan raised his head, waved his hands to the other people and said. ?This is not an excuse, but he really made reference to other cooperation projects. Just a future project. ?The Italian Alenia Macchi M346 trainer aircraft and the Russian Yak 130 trainer aircraft are products in this isomer form. The core designs of the two are almost identical, but there are slight differences in final performance due to some subsystem performance and customer demand factors. ??Although everyone knows that the M346 is actually a technical solution provided by Yakovlev, and the Yak 130 received financial support from Italy, both parties claim that they were independently developed by themselves and have nothing to do with the other party. What cooperation? ??Has been divorced a long time ago! Therefore, M346 can normally enter the air force service of NATO countries. In fact, based on the current time, this project should be almost at the end of the cooperation and separation of the two parties. After a short pause, Chang Haonan added another sentence: And, ultimately, this is still a passive way to circumvent restrictions. In a few years, we should make them dare not restrict us at all! As long as actual benefits can be obtained, these nominal things can be put aside for the time being. He Ming, who had recovered from the embarrassment, also quickly changed the topic: I just dont know if we are engaged in aviation development. When will foreigners come to us and ask for cooperation? ??After receiving huge orders from Persia for more than a hundred aircraft, all of which were twin-engine aircraft modifications and upgrades, Liming Factory has intuitively felt why arms exports are called a huge profit industry. Although the transactions between the two countries are conducted in the form of barter, that is, Persia pays China for crude oil instead of US dollars, the China Petroleum Company that receives the oil will make internal payments based on the transfer price. Although this price is still much lower than international oil prices, the Liming Factory was still in a difficult situation a few years ago and could not even pay wages. It was a huge surprise to have never seen so much money. . ??If we can directly cooperate with Europeans to earn US dollars... ?He Ming felt excited just thinking about it. Once we finish the project at hand, it will be soon ?Chang Haonan looked at the computer in front of him that was in the process of calculation, stretched and said. ??If ordinary people said such a sentence, they would probably only regard it as an encouragement or a slogan. But the person who spoke this time was Chang Haonan... ?Then we have to pay attention to it. ?As a result, the enthusiasm for work in the entire conference room suddenly increased a lot... About half a month later. Maybe it was because I received the cake painted by Chang Haonan, or maybe it was just good luck. In short, the progress of constructing the single crystal directional solidification process model is much faster than expected. In the precision casting center, Chang Haonan, wearing blue work clothes, stood in front of the specially improved directional solidification furnace, explaining the key points of the entire production process to the equipment operators who would be responsible for the trial production task. "The first process of preparing single crystal blades is to form crystal nuclei, but turbine blades have very high requirements for the integrity of single crystals, so we cannot use the traditional method of implanting seed crystals, but use a crystal selector to grow them naturally. of columnar seeds for screening. "The crystal selector used in the production of turbofan 10 blades is designed on this drawing. The columnar crystals generated in the initial section are eliminated through the circular cross-section spiral crystal selection section. In the end, only one can enter the casting. The only thing that can be controlled in this part is the crystal selector. The temperature at the beginning..." The following mold making processes are no different from the past. You should all be experienced..." "The most important thing is the final solidification part. The temperature of the hot end, that is, the water-cooling jacket of the crystallization table, is controlled at 25C. The temperature in the upper preheating zone is controlled at 15151C. The temperature in the lower preheating zone is controlled at 15501C. , the pulling speed is between 4-4.5mm/min..." "In addition, during the solidification process, it should be noted that the expansion coefficients of the ceramic core and the shell are different. After high-temperature cooling cycles, core eccentricity or core leakage can easily occur, resulting in dimensional deviations or even complete crystallization failure. Therefore, be sure to check the expansion coefficient before production. Do a good job of fixing it ? Such detailed process parameters and precautions during the production process made everyone who listened to the lecture feel relaxed and a little surprised. After all, this can be said to be the first industrial production of single-crystal blades of nickel-based high-temperature alloy materials in China, but the operation requirements they just wrote down are almost like a mature operation manual. Even if you have heard some of the deeds of the young commander in front of you, you still have some doubts. This is also human nature. After all, those selected to participate in the trial production tasks are all experienced technicians. But being rich in experience also means that they are more easily influenced by past knowledge. ?Of course, everyone is an old comrade in the military-industrial system. Surprises are accidents. It is impossible for anyone to jump out and question the authority of the commander-in-chief without the foresight. ?The name Chang Haonan, at least within the aviation industry system, is still very convincing. ?Following Ma Liping''s order, all operators quickly returned to their workstations and started pre-production preparation tasks step by step. Mr. Chang, I have prepared two sets of personnel and equipment this time, so that each round of production and testing can be seamlessly connected without wasting any time... Chang Haonan was stunned for a moment by Ma Liping''s words, and then he realized that the other party thought that he might need to try a few more times to succeed, so he made extra preparations. How to say it? The idea is a good one. Its just that theres a high probability that it wont be used. Is this... ?The latter thought about it for a while and felt that saying it was 100% guaranteed to succeed seemed a bit contrary to scientific meaning, so he accepted it a little bit: Director Mas preparations are indeed in place, but I am probably... 95% sure that the production can be successful in the first time! (End of this chapter) Chapter 588 perfect single crystal Chapter 588 Perfect Single Crystal Nine and a half percent ?Ma Liping opened his mouth several times in succession, but in the end no sound came out. Mainly because I dont know what to say for a while. Having no choice but to turn his attention back to the operators who were busy up and down around the directional solidification furnace. As a researcher, he naturally understands the "hidden rules" in the discourse of some colleagues. Being able to tell the figure of 95% is basically equivalent to having 100% confidence. ??Its just that out of respect for statistics and of course metaphysics, I wont say it so absolutely. To be honest, Ma Liping is actually a little nervous in his heart. He has been studying the field of casting technology for more than ten years. Although Chinas domestic level in this field is not high, it has been tracking the cutting-edge progress abroad. Even the countries that are currently doing the best in precision process optimization can still only achieve directional rather than quantitative optimization. The final parameter determination still requires trial and error and debugging during the trial production process. It''s just that it is much more efficient than the experience-trial-and-error approach, which is almost purely based on ignorance. This is still based on improvements based on existing technology. ??The crystal selection method and liquid metal cooling method in front of us is completely new to China... Can you really penetrate the soul with just one shot? I''m afraid it''s not very scientific... ?Of course, thinking about it, Ma Liping is not a newbie who has just entered the workplace, so he will definitely not say such a thing. ??Just kidding, the other person became the chief engineer of a national key model in his twenties. His ability and background are probably very good. How can he, a person who was only appointed as a professor in his fifties, be so successful... Even if you really don''t succeed in the first attempt, the most you can do is complain in your heart. Therefore, after a moment of silence, he responded again: It would be best if we can succeed at the first time... ?While talking, the operator had already completed the setting of the process parameters according to Chang Haonan''s requirements and conducted the final inspection. Mr. Chang, Director Ma, the first trial production of DD8 single crystal alloy blades is ready and can start at any time. ??The section leader who personally led the team trotted over and reported to the two of them. ?Ma Liping did not answer directly, but looked at Chang Haonan beside him. ??Although he, the director of the foundry center, has no administrative connection with the latter, there is obviously no doubt about who is involved in this scene. ?However, Chang Haonan was not prepared to overstep this authority. In the Turbofan 10 project, he no longer lacks a sense of presence. There is no need to steal this limelight. ??Moreover, Chang Haonan also heard a somewhat concerned tone from the other party''s long-awaited answer just now. Director Ma, do you directly lead the foundry center matters, or do you give orders? ?At this time, Ma Liping was still a little surprised. In fact, he did not doubt that Chang Haonan would eventually be able to produce this single crystal blade. Therefore, this first trial production, which is the first of its kind in China, will definitely remain in the history of the aviation industry. Now, this opportunity fell directly on his head. Agree to start trial production! Even though Ma Liping had taken two deep breaths in advance, there was still a slight vibrato and broken sound when he said this sentence. ? And the doubt in his heart just now, which he might not have even noticed himself, and the idea of ??waiting to see a joke, also disappeared without a trace with this gaffe that had nothing to do with the overall situation... With his order, the vacuum pump first started working, followed by the cooling water pump, heater, stirrer, linear motor... The monotonous and harsh roar sounded in the workshop, but no one found the sound unbearable and still stopped where they were. Everyone wants to see the results of this trial production as soon as possible. In the end, Chang Haonan felt that after actually entering production, it seemed useless for his group of people to stand here. On the contrary, it would distract the operators next to them, so he suggested loudly: Lets go to the lounge first and come back when the results are about to come out. ?His voice reached everyones ears above the rumbling sound of the compressor. ?Ma Liping turned his head to look at Chang Haonan in surprise. Although logically speaking, he also knew that researchers like himself would not play a role in specific production. But few people can maintain a truly stable mentality when their major scientific research results are implemented. ?They all wish they could watch the whole process with their own eyes. Looking at it this way, the other party is indeed quite reassured about this process. ? Ma Liping used to teach at a non-military-industrial university in Liaoning Province. He had just joined Liming Group, and this was the first time he had direct dealings with Chang Haonan. ??Although it has not yet been determined whether the trial production can really be a success at first time, the latter''s calm attitude at the moment of this important matter also made him admire him in his heart. Although the process improved by Chang Haonan can "efficiently" produce turbine blades, that is compared to the past. ?Directional solidification method may sound fancy, but in essence it is still precision casting. As long as it is precision casting, it is a matter of slow work and careful work. Speaking of the blade pulling speed during the solidification process, the unit is millimeters per minute. ?This process alone takes an hour or more. Hence, by the time the entire production process was completed, it was already this afternoon. Chang Haonan and his team returned to the production workshop early and witnessed the entire process of the completed turbine blades being taken out of the directional solidification furnace, cleaned, and cooled. Finally, after waiting for about half an hour, a group of products was finally handed over to everyone by the section chief - Generally speaking, in order to ensure efficiency, turbine blades are not manufactured one at a time, but in groups, usually 4- 6. Even for trial production. Because there are many destructive items in the subsequent testing, it is necessary to prepare more samples. On the surface, these blades look a bit unattractive, even gray, and do not look like what most people imagine as high-precision products. But for the insiders present, it can be seen that these products at least do not have defects such as shrinkage holes, freckles, and streak crystals that can be seen with the naked eye. Compared to the previous useless models that could be directly included in the textbooks, they are already so good that I dont know where they are. ?Of course, the more detailed parts at the crystal level require further testing with equipment. Quickly, send it to the testing center for comprehensive testing, especially the alloy morphology and elemental composition. The results will be available as soon as possible. Ma Liping turned around and handed the sample to an assistant behind him. Originally, Liming Factory usually sends this kind of testing outside, just like what Chang Haonan did two years ago. But after the precision casting center was established, they spent huge sums of money to purchase a batch of equipment, which greatly reduced the time waiting for test results. Soon, several X-ray detection and electron microscopy test results were sent back after being copied. Ma Liping almost snatched the report into his hand, pointed it at the light not far away, took off his glasses and moved closer to examine it carefully. Cross-section dendritic structure, cross-petal morphology The primary dendrites grow in the vertical direction with a spacing of 373 m, and the secondary dendrite arms are distributed in parallel with a spacing of 80 m The average size of dendrites is 450nm, and the size between dendrites is 670nm As the report went further and further, his expression changed from nervous to relaxed, and finally to ecstatic. However, just when he turned to the last page of the test report and was about to open the champagne, the expression on his face suddenly froze. The longitudinal segregation coefficient of aluminum is 0.82, the longitudinal segregation coefficient of cobalt is 2.60, rhenium is 12.28, and tungsten is 32.21 /á eutectic phase content is 13.6% Ma Liping raised his head with a confused expression and looked at Chang Haonan beside him: Mr. Chang, is this...the content of the eutectic phase a little too high..." And...Although the overall content of impurity elements is very small, the distribution is uneven. The rhenium and tungsten elements that affect performance are almost all concentrated at the root of the blade, which is very detrimental to the working stability..." In fact, when he first heard Chang Haonan say that he could succeed in one attempt, Ma Liping even wanted to see the opponent suffer. But now, when he actually saw the result, he felt that it was completely unacceptable. ?The previous test data were all very good, so why did something go wrong at the end? I have prayed ninety-nine times, but I trembled and failed to understand the last one. This is the most annoying thing. ?However, Chang Haonan, who was not far away, showed no signs of anxiety at all. He was holding another piece of information with his head down, writing and doing calculations... Mr. Chang? "Director Ma, you are too anxious..." After a while, Chang Haonan raised his head again and handed Ma Liping the information he had never taken out before: We are in trial production, and we need to conduct a test after each process. There is still a heat treatment that has not been completed, and the blade is still a semi-finished product. Naturally, it cannot be perfect in every aspect. After being told this, Ma Liping realized how embarrassed he was. ?Its not that I didnt understand when I was trembling at the last moment, its that I havent started trembling yet ?Of course he is not unaware that there may be subsequent processing processes after the blades are formed, but he may have been too nervous just now and his mind was confused. Compared to Chang Haonan, who is in charge of process design, he seems to be more concerned and chaotic... ?Thinking of this, Ma Liping forced himself to calm down, and then looked down at the information Chang Haonan had just given. This is a dense form that spans several pages. He quickly saw that this was a parameter list for the heat treatment process. Each process corresponds to different defects in semi-finished products. In other words, Chang Haonan has predicted the possible test results in advance and made different heat treatment plans accordingly. Now you just need to select according to the table! At this moment, Ma Liping suddenly felt... Thats it. ? He ??has always been curious about how Chang Haonan plans to deal with product differences caused by equipment and environmental fluctuations during the crystal casting process. As a result, they calculated everything directly... At the same time, Chang Haonan has handed over the selected heat treatment parameters to the section chief who has been waiting beside him: "You should have seen the process of choosing a craft just now. Just follow my method from now on, go and deal with it!" The waiting process later seemed a bit boring compared to the previous one. Chang Haonan''s preparations have reached this outrageous level. Even if everyone was a little worried about the final result of the trial production just now, they have basically stabilized their mentality now. Unsurprisingly, when the final sample test results after heat treatment were sent again, the element segregation and eutectic structure had been greatly alleviated, and the content of the á phase was almost one-third higher than before. In other words, it is almost a perfect single crystal of DD8 material! Turbine blades, is this considered...made? He Ming, who had not spoken much just now, felt that the world seemed a bit unrealistic. Chang Haonan did not answer his question. He just put the blade back into the box and turned around: Okay, now that this problem has been overcome, the production of the combustion chamber and turbine subsystems should also be put on the agenda! (End of this chapter) Chapter 589 An old acquaintance from aviation school Chapter 589 An old acquaintance from the aviation school After solving the key technical problem that hindered the production of single-crystal turbine blades, Turbofan 10 has entered the component-level production and testing process. This is another stage where Chang Haonan can relatively let go. After all, Liming Factory still has some capabilities, and there is no need for him to go out and drive screws himself. As for testing Chang Haonan is quite confident in going through component-level testing. ??And even if there are some minor problems, the entire team has been working with him for a year, so he doesn''t have to teach everything step by step. As for the die forging press... After all, although they are both under the category of casting, there are still a few million differences between single crystals made by directional solidification and their large-scale castings. At most, we can learn from each others experiences in dealing with shrinkage porosity. So, several engineers responsible for producing movable beams had actually gone back to optimize their own process parameters earlier. After all, the project timetable was to have the equipment in trial production by October 1999. For a behemoth with a dead weight of over 20,000 tons, it would take at least about half a year to transport the various subsystems from the place of production to Jiangcheng and then install them, not to mention the subsequent equipment debugging. , the time actually left for them to produce is actually not very abundant. ?So, Chang Haonan decided to take advantage of this hard-earned gap between the two projects to give himself a little vacation. By the way, I went north to the Air Force Aviation School in Changchun and took a look at Chang Jiayao who was studying there. ?However, at his current position, even every move in his personal life can no longer be done as he pleased like in the past. ??It doesn''t matter if it''s just in the capital, or between these units within the Science and Technology Commission system, but if you want to go somewhere else, you have to make a report first. It does not involve any issues such as approval. The main thing is to let the organization know where you are. In case something happens, it is best to respond at any time. There is nothing we can do about this. ?While the importance and voice are gradually increasing, it is inevitable to pay a small price in terms of freedom. Chang Haonan''s current importance is self-evident. Although there is no such term as "strategic scientist" at the moment, his actual functions are almost the same. ?Including daily security, although Zhu Yadan is here, it is enough to deal with some ordinary accidents, but in this age when social security is difficult to reassure, Ding Gaoheng still often needs to personally intervene and make arrangements. ?The last person to receive such treatment was Mr. Qian. Coincidentally, the person who arranged security work for Mr. Qian happened to be Ding Gaohengs father-in-law... In short, when Chang Haonan finally made it all the way to his destination, it was already several days later. Although the Air Force Aviation School is a school, it is an active unit at the deputy corps level of the People''s Liberation Army. ??Except for a few special circumstances, the students there are automatically considered to have enlisted in the army when they enter the school. They receive the rank of air force cadet and start counting their military years. The instructors and teachers are all active-duty officers. ?This kind of place naturally cannot allow people to wander around like a normal university campus. They are all managed in a closed manner. Therefore, when Chang Haonan arrived at the gate of the school in a dusty Jetta that came from Shengjing, he was stopped by the sentry as expected. ??Due to the numerous incidents in the past two years where criminals attacked sentries and then grabbed guns and committed crimes again, by 1998, the sentries at the gate of the compound were basically in groups of two, with guns and ammunition separated. Comrade, there is a military control area ahead, and civilian vehicles need to show their IDs to enter. I dont have any documents. Of course I dont have them. ??Zhu Yadan theoretically has the rank of captain of the armed police, but he is not in the same unit and is of no use. According to general custom, in order to show respect for the sentry, Chang Haonan chose to get out of the car to negotiate with the other party: "I am" He hesitated for a moment, feeling that the relationship between brother and sister seemed a bit unconvincing, so he changed his explanation: "I am a parent of a student. I just took a break recently and wanted to come over for a visit." ?However, his explanation, coupled with the hesitation just now, made the sentry suspicious. Mainly, under normal circumstances, when talking about parents, the basic default is to be the elders. As for Chang Haonan''s appearance, it doesn''t look like he could have a child going to college. In fact, the sentry felt that he was like a college student. Are you... a parent of a student? ?The other party frowned: "Okay, which student in which department or class do you want to visit? I will contact their instructor for you." ?At this time, Chang Haonan felt a little embarrassed Since Chang Jiayao finished her college entrance examination, the two of them have not seen each other again, so he actually does not know the specific major and class of his sister. Uh...I dont know which class I am in, but I am a freshman this year, and my name is Chang Jiayao. There should not be many female students in your college, so its easy to find one. ??The sentry glanced up and down at Chang Haonan with a look as if you thought I was a fool: Parents of students, dont know which class your child is in? At this time, he had already listed Chang Haonan as a highly suspect subject. ?This suspicion does not mean that the latter is a spy. Rather, I feel that this is probably the boyfriend of the female student, who is looking for someone to come out in the name of a parent... According to the regulations in the army, it is obviously impossible to go out for a date during the working day. ?Thinking of this, the sentry thought to himself: How could such a trivial trick deceive me? ?The eyes also became sharp. ?Of course, he cannot directly drive away people who claim to be parents of students. ?However, there are other ways to deal with such young people who are in love: I can contact Chang Jiayaos instructor, but we have the information of the students parents. If we cant match it by then, you may be suspected of violating my countrys Military Facilities Protection Law Under normal circumstances, if you are really looking for a date with a female student, you should find a reason to run away at this point. But Chang Haonan had a clear conscience, and he didn''t know the sentinel''s inner thoughts at all. He just regarded it as a routine statement and nodded without thinking about it. In fact, he had a letter of introduction stamped by the Shengjing Military Region Air Force Command in his arms. But if this thing was taken out, the impact would be quite big, and it might even be a burden to Chang Jiayao, so she chose to take the normal route of visiting the students'' parents. ?The other party was a little shocked when he saw this incompetent person. He turned around and ran back to the post, picked up the phone and started calling people. ??Even specifically asked the other party to bring two more people out to prevent this bold and high-risk subject from causing trouble. Soon, an open-top off-road vehicle sped past the school gate. An air force colonel wearing a classic "army jacket, navy trousers" uniform stepped out of the co-pilot''s seat, followed by two soldiers. He negotiated with the sentry for a few words, and then looked towards Chang Haonan. ?Several people walked up to the latter in an aggressive manner: Hello, I am Comrade Chang Jiayaos instructor. Please show me your ID and the information we have here..." ?Before he finished speaking, the air force colonel was stunned for a moment. Immediately afterwards, the originally guarded expression suddenly relaxed, and he shouted in a somewhat unbelievable voice: Mr. Chang? ?This sound also reminded Chang Haonan of the identity of the officer opposite: "You are... Zhang Jiujiang, instructor Zhang?" (End of this chapter) Chapter 590 New generation training aircraft system Chapter 590 New Generation Training Aircraft System ?Zhang Jiujiang is the veteran pilot who flew the J-7 with Chang Haonan into the sky to observe the airflow on the wing surface of the J-8C prototype. Later, the two met again in Yan Liang. ? At that time, Zhang Jiujiang was temporarily pulled over to fly the prototype of the J-7F to demonstrate its performance to foreign customers, while Chang Haonan happened to be working on the improvement of the J-7F in Haojing. ?Havent seen him since then. ?Given the nature of Chang Haonan''s work, he sees too many people every day, and Zhang Jiujiang is just an ordinary person who he has only met twice. What''s more, during one of the meetings, the other person was wearing an oxygen mask and could not see his face clearly. So when we first met, we didnt recognize each others identity. But for Zhang Jiujiang, in his more than 20 years of flying career, he has only carried one completely non-professional "passenger" in the back seat. Moreover, this passenger was deeply involved in the research and development of several aircraft models. His impression It''s definitely quite profound. Seeing the scene of two people shaking hands and hugging each other, the most shocked person was the sentry standing next to him who had just called the person out. Are you really a parent of a student? Looking at Chang Haonan''s face, I really couldn''t convince myself to believe this. But Director Zhang obviously knows this person... The sentry felt that his brain was about to burn. In fact, not only him, but also Zhang Jiujiang was a little confused for a while. ?But after all, he knew Chang Haonan''s name, and also knew that Chang Jiayao''s father was called Chang Yuanchao, and Chang Haonan was obviously not that old. Therefore, after eliminating all possibilities, the correct answer was quickly guessed: So Mr. Chang, Chang Jiayao is your...sister? ?Chang Haonan still knew nothing about the small theater in the sentry behind him, and just nodded: "Yes, my sister was admitted to your university last year. Since then, I have been busy with projects and have never met her. I have some free time recently, so I thought I would come and have a look." For him, what just happened was actually that the sentry questioned him normally and then called Zhang Jiujiang out. Theres nothing unusual about it. ?However, to the sentrys ears, this conversation was different Zhang Jiujiang, Air Force Colonel. He is the head of the aviation flight major of the college and also serves as the teaching director of the flight training course. ?Tell this young man Mr. Chang... Its not a matter of panic, but the embarrassment is real Even though he was just following the rules on the surface and actually did nothing wrong, he knew the process of the brainstorming session better than anyone else. It feels quite like "your friend''s son went shopping with his wife, but you mistakenly thought he was cheating on you and informed the other party, but you later found out that it was a mistake." ?So, while no one was paying attention at the moment, he quietly hid back in the guard box to register the license plate. Okay, Ill take you in, but today is not a day off. According to the rules, you have to wait until after class to meet the students. ?Zhang Jiujiang took Chang Haonan to write down his name, contact information and purpose of visit in the notebook, and then looked at Zhu Yadan not far away: This other one is Uh...Zhu Yadan, my guard. Chang Haonan couldn''t make up any reasonable identity for a while, so he had to tell the truth. When he heard the last three words, Zhang Jiujiang''s originally fluent writing suddenly trembled: Im going to "you" Although the relationship between the two systems of the military and the Science and Technology Commission is very close at the top level, at the bottom level, except for a few positions such as military representatives, there is not much overlap between them. ?Although Zhang Jiujiang is a pilot, he cannot keep an eye on the development progress of new equipment all day long. Besides, I dont have that authority. So, he actually only vaguely knew that Chang Haonan''s status within the aviation industry system should not be low. But as a soldier, he knows very well who can be a personal guard in peacetime. There are guard platoons at the regiment level, guard companies at the division level, and guard battalions at the corps level. But these establishments are all allocated for the position of troop commander, not for individuals... ??So, Zhang Jiujiang subconsciously wanted to ask you what you have done in the past two years, even the security guards have been involved. ?But in the end, I didnt ask. ?Years of organizational discipline have taught him that there are some things that should not be asked but should not be asked. Okay, registration is complete. ?Zhang Jiujiang returned the registration form and pen to the sentry, and then saluted him: Very alert, good. He has been transferred to the flight academy for almost a year, so he can certainly guess what the sentry was thinking when he called him out. Although the actual situation turned out to be a mistake, there is nothing wrong with this approach. Hands aside, as a superior, we cannot allow soldiers to bear this psychological pressure for no reason. ?After some operations at the door, Chang Haonan finally entered the flight academy in Zhang Jiujiang''s open-top jeep. ?His own Jetta King parked in the parking lot near the entrance of the college. Actually, before I took the college entrance examination, I also thought about participating in the recruitment to become a pilot. Unfortunately, my teeth were not in good condition and the army confiscated me. Chang Haonan sat in the passenger seat and looked at the students walking in columns on the road around him. The seating arrangements in the military, especially in grassroots military units, are slightly different from those in local areas. Generally, the co-pilot is seat 1. ?Although the registration for the college entrance examination actually happened decades ago for him, and he has long forgotten about it, he still can''t help but feel a little emotional when he really mentions it. ?Human life is really unpredictable. How could you say that I am... Zhang Jiujiang also smiled: Thats all thanks to the recruiter who rejected you, otherwise our country would have lost an outstanding young scientist... ?Chang Haonan opened his mouth and found that he really couldn''t answer the question, so he had to change the topic quietly: By the way, does Instructor Zhang take care of my sisters class? To be precise, they are in charge of their class. Zhang Jiujiang replied casually: Our country did not recruit female pilots every year in the past, so there was no universal training program. This time, the superiors hope to use their group to determine a systematic training method. "What is the direction of their training? Fighters? Or transport aircraft?" Chang Haonan suddenly remembered that Chang Jiayao had said on the phone that she wanted to fly a plane she designed. They are not separated in the first two years, including when they are doing basic flight training for beginners. They are separated only after the intermediate level. Fighters fly JJ-5, and transport aircraft and bombers fly H-Jiao 5. Zhang Jiujiang replied: However, according to the current plan, female pilots will all be assigned to the transport flight major. They still have to do it step by step. It is too risky to go directly to fighter jets. Speaking of fighter jets, I thought I could stay in the combat force for a few more years, fly the J-8C you built before transferring to an aviation school, but I didnt catch up with this opportunity when I arrived. Speaking of this, there was a bit of regret in his tone. Combat troops also have training instructors, and Zhang Jiujiang has been working in this position before. ?However, he was later seconded to the test pilot group, and then came to the aviation school as a full-time instructor. At this point, unless something unexpected happens, there will be basically no chance of returning to the combat unit. Although it was his own choice to teach at an aviation school, as an Air Force pilot, it would definitely be a lie to say that he did not want to fly the latest domestically produced aircraft. It doesnt matter, our aviation school will definitely have new training aircraft. We cant always use the JJ-5 and J-7 to do our job. At this time, K8s self-use model Coach 8, as well as the Hun Yun Jiao 7 modified from the Yun 7, have not yet been finalized and put into service. Therefore, the aviation schools coaching equipment is still based on the level of the 1950s and 1960s. In fact, it is already a bit Out of touch with the times. I do know about this. Guizhou Airlines has transformed the JJ-7 into a serious advanced trainer aircraft. It is said that the Bayi Aerobatic Team will also use this model. ?Although Zhang Jiujiang didnt know Chang Haonans role in the JJ-9 project, he still heard about the new model: If you ask me, as long as I can replace Jian Jiao 7, anything will do. Chang Haonan naturally understands the resentment of the pilots, especially the flight instructors in the back seat, towards the JJ-7. After all, he has experienced it. Isnt there another K8 in Hongdu? It has been exported a lot. It should be a sure thing that it will replace Chujiao 5. ?Chang Haonan continued to comfort him. Its hard to say. ?Zhang Jiujiangs attitude is somewhat uncertain: "It is now said that the superiors are hesitating whether to continue to retain the three-level coaching system of junior-intermediate-senior, or to replace the junior coach 6 with a more advanced model and become a two-level coaching system of junior-senior. The fourth year Let the trainees directly join the army and start flying the training model of the main fighter aircraft. Is there such a thing? ?Chang Haonan raised his eyebrows. Its just a rumor, Im not sure yet. Zhang Jiujiang just mentioned it casually. He felt that at his age, he might not have much hope before the flight was grounded. ?But this was a wake-up call for Chang Haonan. Hongdu, the aviation industry, has been having a tough time lately. ?Because the JH-7A appeared five years earlier than the original timeline, the Qiang 5D, which was supposed to be finalized and equipped with troops in batches, was directly squeezed out of its ecological niche and transferred to the technical reserve. Its a big loss. ?Although this fact cannot be blamed on himself, if there is a chance, it is better to help him. (End of this chapter) Chapter 591 A battle hero who upgrades two levels in a row Chapter 591: A combat hero who upgraded two levels in a row It can only be said that it is a flying academy. The campus area is indeed too large for a university. ??The open-top jeep went around and around on the internal road several times until the wind made Chang Haonan want to sneeze, and finally stopped in front of an inconspicuous building. Today, a superior leader came to inspect. If you go directly to the teaching area, there may be extra security. You have to get out of the car and walk in. Its too far there and its inconvenient. ?Zhang Jiujiang explained while pushing open the car door: "But they are about to finish class anyway. I will take you to my office to sit for a while, then go to the cafeteria to have a meal, and then ask their life teacher to contact your sister to come out." No problem, this is your territory, its up to you. Chang Haonan, who was in the passenger seat, also got out of the car. Since I havent had much to do these past few days, I dont mind waiting a little longer: However, when superiors come to inspect your internal units in the army, they still need to set up security? ? He ??just recalled that when he entered, he didn''t seem to find any signs such as Welcome to Guidance, and the sentry didn''t seem to make any extra moves (of course, he still didn''t know the other person''s inner theater at that time). Usually its not necessary, but the situation is different today. You can see that there was no movement outside just now. Its just loose on the outside and tight on the inside Zhang Jiujiang, who was walking next to him, replied somewhat vaguely: Of course, it doesnt really count as extra security. We just dont allow vehicles to enter, so as not to block the road and affect the journey. Seeing that he didn''t explain it more clearly, Chang Haonan also knew that the matter was finished here, so he didn''t continue to ask more questions. While talking, the two of them had arrived at the door of a four-story office building. ?Zhang Jiujiangs office is on the second floor, which is very convenient. Sit down wherever you want and Ill get you something to drink. Chang Haonan noticed that there was a photo next to the other party''s desk, but it was not a common family photo or travel photo. It was about this time last year when he, Zhang Jiujiang, Lu Yuying and others were in the J-7F Picture taken in front. ?Although it has only been a year, when I see this photo, I still feel a sense of illusion that time and space are intertwined. First of all, too many things have happened in the past year. Secondly, the J-7F is, after all, the first model he built after his rebirth. Although there is a bit of a coincidence. ?At present, the first batch of 24 units of this model should have been delivered to the Pakistan Air Force, and there seem to be small batch orders from other countries being scheduled later. ?However, Chang Haonan has indeed not paid attention to it for some days. ?It wasnt until a steaming white porcelain cup was placed on the coaster in front of him that his mind was pulled away from the memories brought by the photo. By the way, Instructor Zhang, did you later participate in the test flight of the J-7F? ?Chang Haonan picked up the tea cup, blew it gently, and then asked. Youre talking about after that air show? Zhang Jiujiang sat down on his office chair holding the same cup: I flew a few more target tests at the Dingxin base, with the 23mm cannon, as well as the PL-5II and PL-8. I havent flown any other subjects. I was originally going to fly the PL-11, but the flight schools transfer order came in advance. Its a pity, otherwise we would have had the opportunity to shoot a beyond-visual-range missile, and we would have been able to brag about it when teaching students... ??Although the equipment of the Chinese Air Force has improved a lot compared to the previous generation, the main force today is still the J-6 and J-7, and it can be said that there are very few pilots who have fired medium-range bombs. It is still worth talking about. ?Zhang Jiujiang had previously known through Lu Yuying that Chang Haonan had been deeply involved in the J-7F and even participated in the design of the J-10. ??Although I still dont understand why one person can participate in the projects of both 601 and 611 in a short period of time, in short, I can talk about it with confidence. So he paused for a moment and took a drink of water, then continued to add: "After all, we were temporarily seconded to the flight test center because of a lack of manpower. The establishment is still in our own army. Although they don''t say it, they are not very good at arranging for us to recover from the spin or stop and restart in the air. It is difficult to explain such high-risk projects if something goes wrong. Of course, to put it bluntly, there are concerns about our level. But to be honest, regardless of other subjects, if we just fly stall and spin recovery, no test pilot can fly better than us instructors..." Stall and spin recovery are necessary subjects in the flight training process. Of course, students only need to perform them once, but instructors need to fly them day after day, year after year. It is definitely not an exaggeration to say that. It can be seen that although Zhang Jiujiang chose a relatively stable job in an aviation school, he still has aspirations for a more challenging job. ?Perhaps he also realized that he seemed to be complaining just now, so he changed the subject: Sigh... lets not mention this. Even though its a dull place here, my wife and children dont have to worry about it. I can go home on weekends, which is good. Of course at your age, you shouldnt feel this way, hahaha Chang Haonan didnt find it easy to answer this. ?Mainly because his actual age is actually not much different from Zhang Jiujiang. But because I was never married in my previous life, so... I really dont feel that way. So I had to do a tactical drink of water to cover up the slight embarrassment. Fortunately, this topic was quickly dropped, and the two of them started to talk about some serious things that should be discussed between parents and teachers. Such as academic performance and so on. Okay, its almost time, Ill take you to dinner. After chatting for a while, Zhang Jiujiang looked at his watch, stood up, put on his coat again, and prepared to go out with Chang Haonan. But just when the two of them went downstairs to the lobby on the first floor, they happened to meet a group of people who were about to go upstairs. The leader is carrying a gold star, with a stern face and wind-like steps. ?Chang Haonan thought for a moment and realized that this should be the "superior leader" Zhang Jiujiang just mentioned. The rank of major general also meets this security level. ??If he were at a higher level, he might not be able to get in if he didn''t take out the letter of introduction today. With this thought in his mind, he prepared to step aside and let the other party pass first. And Zhang Jiujiang naturally stood at attention and saluted. ??When several figures were intertwined, Chang Haonan glanced at the face of the officer at the front. ? And in this place, it is not particularly common for a young man in casual clothes to appear, so it will inevitably attract more attention. As a result, the eyes of the two people intersected for a moment. Then, the steps stopped almost at the same time. ?Chang Haonan was already shocked. I just came to see my sister, how could I meet an acquaintance? ?Zheng Liangqun, the pilot who piloted the J-8C in the first victory, had met before when he received the award at Sandaomen. Because this fact is so big, it makes a deep impression. Comrade Chang Haonan? The visitor obviously recognized him. Zheng Chang Haonan got stuck before he could pronounce the first syllable. In his impression, Zheng Liangqun was still the commander of the Kongyi Division. ??But the general title on the opposite person''s body clearly indicates that he has been promoted again. In the end, I had to choose a title that was unmistakable: General Zheng, what a coincidence, long time no see. ?Chang Haonan felt that he might not be able to hide his identity. As expected, the other party doubted almost without thinking: Comrade Haonan, you are here... My sister goes to school here, so I came to see her during my vacation. After giving a vague answer, he quickly changed the subject: I just heard from Instructor Zhang that a leader came to inspect today, but I didnt expect that it was you. Alas, why dont you think its yours? Its out of sight... Zheng Liangqun is still grateful to Chang Haonan. ?In the past year, he has directly participated in the bat hunting operation that shot down the MiG-25, and indirectly participated in the embankment operation to deter the Royal Navy fleet. It can be said that he has been involved in the two biggest jobs of the Air Force in the past 30 years. He also won the honorary title of "Air Force Combat Hero" and was promoted two levels in a row, crossing the most critical general officer threshold for a mid- to senior-level commander. ?Although this is inseparable from his own efforts, after all, the improvement of the equipment level of the PLA Air Force must also be taken into consideration... (End of this chapter) Chapter 592 Parade Aerial Echelon (4K) Chapter 592 Parade Air Echelon (4K) The two people communicated like old acquaintances, which confused everyone around them, from the dean of the flight academy to Zhang Jiujiang. The specific circumstances of the bat-hunting operation and embankment-building operation are not completely disclosed even within the military. Especially the latter, there are almost only some rumors. ?Although many people speculate that Zheng Liangqun''s two consecutive upgrades may be related to this, the relevant details are destined to be unknown. Even the fact that a "Wanglang 97" fleet wants to come to provoke is not understood by everyone. Therefore, no one knows how these two people, who seem to be completely unrelated regardless of age or position, met. Except Zhu Yadan who was following Chang Haonan. She is already used to it. ??Zhu Yadan has long discovered that although he is a young leader, he has acquaintances almost wherever he goes, and the relationship is pretty good... In short, no matter what, this dinner must be put away first. Are you Comrade Chang Haonan? As the pleasantries between the two people came to an end, another major general next to Zheng Liangqun also had the opportunity to speak: I am the dean of the Air Force Flight Academy, Qi Litong. I have admired your name for a long time. When they first met, Zheng Liangqun called out Chang Haonan''s full name, but that was all, and did not introduce any more details related to Chang Haonan. ?Given Qi Litongs position, he may not actually know more than Zhang Jiujiang. The most important thing is that everyone can see that the relationship between Chang Haonan and Zheng Liangqun is very good. Although the latter''s military rank and rank are the same as Qi Litong''s, similar to the local situation, the value of their positions and the development prospects behind them are very different. Otherwise, today wouldnt be a leadership inspection. Hello, Dean Qi. Chang Haonan has never heard of this person, and he didn''t expect him to be the leader of the school just now. But the things on the scene are obviously indispensable: Its an honor to meet you. Qi Litong is also quite experienced in facing this situation. ?In just a few minutes, he had discovered that Chang Haonan didn''t seem to know much about Zheng Liangqun''s current situation. Otherwise, I would not have used such a strange title as General Zheng. ?Of course, this is not surprising. After all, Chang Haonan does not look like a member of the military, and it is a unique situation to jump two levels in a year. In this year, the efficiency of information transmission was relatively slow. It is possible that the order to promote Zheng Liangqun from deputy division to deputy division was issued before the news spread. ?Hence, after briefly introducing himself, Qi Li fairy tale changed the subject and said: Chief of Staff Zheng, on behalf of the Shengjing Military Region, came to our school to inspect the training of student pilots. He is about to go up to have a small meeting. Mr. Chang, please see..." ?This sentence sounds like it has no beginning and no end, and it seems to be a bit overstepping its authority. But its actually very useful. Because it clearly pointed out to Chang Haonan Zheng Liangqun''s current position and the purpose of his trip. ?If the person concerned talks about this matter himself, it will be self-promoting on the one hand, and it will be more embarrassing on the other hand. But after Qi Litong relayed it, the transition was very smooth. Decent, natural, without any presumption and deferential attitude. But the effect is very good. Chang Haonan naturally understands the underlying meaning. It means that Zheng Liangqun has now been promoted to deputy chief of staff of the Shengjing Military Region Air Force. The last half of the unfinished sentence was obviously left for Zheng Liangqun to pick up. Comrade Haonan, if you have time, come along. The topic to be discussed today happens to be related to the equipment situation. It would be better to have an expert in the aviation field here. The first time the two of them met was at the J-8C delivery ceremony more than a year ago. At that time, Chang Haonan was just a young technician who played an important role in the 83rd Project. As the leader of the first batch of troops to receive the J-8C model, Zheng Liangqun often went to the 601 Institute and the 112 Factory, so he knew a lot about Chang Haonan''s later achievements. But he is not from the Science and Technology Commission system. So, the name has not been changed. Later, in the conference room on the top floor. Chang Haonan was sitting at one of the two main seats at the conference table. He lamented that he could be pulled over for a meeting during his vacation, and listened to Zheng Liangqun''s opening remarks next to him. When he was first reborn, he might not even be able to get a seat at the table when he encountered this kind of meeting. That year when I was twenty, there was a meeting in the group, and I sat there like a gangster... The first time he sat next to Yang Fenghata at the symposium of the 83rd Project, he was even excited about it for a while. ?But now, he has long lost his excitement about it. ??If Zheng Liangqun hadn''t extended his warm invitation to today''s meeting, he wouldn''t even have wanted to come. After all, you can imagine how boring this kind of summary meeting after a leadership inspection is... However, just when Chang Haonan was ready to spend the next boring thirty minutes to an hour, Zheng Liangqun''s first words hit him directly in the face: Comrades, the purpose of my coming to the flight academy this time is actually to confirm the arrangements for the review of the 9910 Project air formation. Shall I go? ?Chang Haonan felt excited in his heart and sat upright immediately. ??If you talk about this, then I wont be sleepy. The leaders of the flight academy sitting on both sides of the long conference table had a greater reaction than Chang Haonan. Obviously, they didn''t know about this before and just regarded it as a normal inspection by their superiors. This is obviously the reason why Zheng Liangqun only expressed his intention now: Thanks to the hard work of comrades in the military industry system, our Air Force is modernizing at an unprecedented speed. "However, the modernization of the military is not only the modernization of equipment, but also the modernization of personnel and thinking. For our Air Force, flight students and flight instructors are the main force in personnel modernization and the core of the aviation force. future." "Therefore, Commander Li Liangxin, the commander-in-chief of the troops under review, and of course me, hope that the last fixed-wing formation can be prioritized as a training aircraft echelon. If after inspection, it is found that the conditions are not sufficient, an attack aircraft echelon will be used as a backup. ? ? For everyone in the flight academy, they are a little scared, but they are no longer nervous Since Zheng Liangqun can say this, it means that they should have passed the test. The attack aircraft echelon is undoubtedly the top 5. This model has already participated in the 1984 military parade. By the eve of the millennium, it was already considered a backward model no matter how much modifications were made. If it was not forced, it would not be used in another military parade. . Sure enough, after a brief pause, Zheng Liangqun continued: Judging from what I saw this past day, I think the Flight Academy has the conditions to participate in the military parade! ?After a brief silence, warm applause erupted from the small conference room. This is definitely a huge surprise. ? Participating in the National Day military parade is an extremely honorable thing for any soldier, including Zheng Liangqun, who has already achieved military exploits. What''s more, the flight academy is generally considered a "retirement unit". Then there are two things that need to be determined next. When the applause gradually subsided, Zheng Liangqun raised his hand and pressed it down slightly, and then continued: First, determine the specific reference crews, including five selected crews and one backup crew. Each crew needs to have a student pilot and a flight instructor. Of course, the aircraft must still be controlled by the instructor. Second, I know that the types of aircraft at the aviation school are relatively complex, so we need to confirm the reference aircraft type. When it came to selecting people at the beginning, the people below didnt have much reaction. There are many instructors in the flight academy, but everyone knows who has the best skills. The military parade is something that must be foolproof, and no one dares to play tricks on it, just let their abilities speak for themselves. ?Of course, students are much more "free" in their choices, but that will be discussed later. The second one, choosing a plane, made Qi Litong and others look sad The aviation school currently has five flagship aircraft models. Chujiao 6, served in 1962. JJ-5, which entered service in 1966. Yunjiao 5, served in 1962. Hongjiao 5, the aircraft itself was put into service in 1968, but the prototype is the IL-28 which was put into service in 1950. JJ-7, which was put into service in 1987, is considered a "cutting-edge" model, but both in terms of flight performance and cockpit environment, it is really not suitable for flying large formations at low altitudes and low speeds. After thinking hard to no avail, everyone suddenly remembered that Zheng Liangqun seemed to have brought in a foreign aid for today''s meeting... ?Hence, all eyes turned to Chang Haonan, who was sitting attentively eating melon. ?) The latters smile froze on his face. Why did the cue suddenly come to me? Mr. Chang, you should know more about the situation in the aviation industry. I wonder if the JJ-9 being developed by Guizhou Aviation Industry has the conditions to participate in the 9910 project? Zheng Liangqun suddenly asked. Originally, this matter should be connected between the flight academy and Guizhou Airlines after the meeting. However, the communication from northeast to southwest is actually a bit complicated these days, so he directly brought Chang Haonan to the meeting. ?Furthermore, it is expected that the latter will also be interested in the military parade. ?Chang Haonan knew that the "conditional" mentioned by the other party did not simply refer to whether he could serve before October 1999. ?Its more about whether the model is mature and reliable Based on past experience, a model that has been equipped with troops may not be reliable. On the other hand, models that have not yet been finalized and are still in the prototype stage are not necessarily unreliable. ?There are not only technical factors, but also the confidence of users, that is, the instructors and students of the flight academy, in the new model. This is especially important for flying formations. As a person from the military industry system, Chang Haonan is well suited to give this confidence. ?So after thinking for a while, he answered: JJ-9 is actually a product spawned by the No. 10 Project technology verification project, and its degree of completion is inherently high. "I personally participated in the overall aerodynamic design of this aircraft. Based on the J-7, the rear cockpit was raised, the large delta wing was replaced with a double delta wing with large rims, and the air inlet was also modified. The DSI air inlet arranged on both ribs has been specially optimized for subsonic flight conditions, and the controllable angle of attack and anti-stall spin capabilities have been qualitatively improved. "The power of the aircraft directly uses the mature turbojet 14B, which is also the power of the J-8C, J-7F and Persian F4EC. As for the performance of this engine, I think Chief Zheng should have a very intuitive experience. " ?Chang Haonan looked at Zheng Liangqun and said with a slightly joking tone. The conference room was suddenly filled with a cheerful atmosphere. Compared with the embankment operation, the general situation of the bat hunting operation is still widely circulated within the army. After all, last year Zheng Liangqun gave more than a dozen reports to various aviation units on how to use radar-guided missiles for beyond-visual-range interception. How much of it will involve content about that battle? So, when Chang Haonan mentioned the J-8C, although this was a new model that had only been in service for a year and a half, everyone''s confidence was still built. After relaxing a little, Chang Haonan continued to add: In addition, if you are worried that the adaptation period after the replacement is too short, the academy can choose to install a special formation flight rangefinder on the purchased JJ-9. "This device can give the distance of up to four aircraft above, below, left, and right in the front hemisphere, accurate to centimeters. It is very practical for large-density formations. It was originally designed for the August 1st Performance Team, but if there is demand, any user can choose " "And one good thing is that because of its small size, it doesn''t take up too much space like a radar. In other words, even if this rangefinder is installed, you can still choose the nose strips on the side of the radome to put the aircraft''s Increasing the controllable angle of attack to above 90 is almost equivalent to not entering a high angle of attack stall. 90 degrees? ?This number almost made Qi Litong choke on his own saliva. Old aircraft like the JJ-5 may not even have a controllable angle of attack of 19, even the JJ-7 has a controllable angle of attack of just over 20. He couldn''t even imagine the concept of 90 controllability. Hmm lets give it a conservative estimate. Chang Haonan said and touched his chin: The test pilots at Guizhou Airlines have actually pulled it to a larger angle, but under normal use there is no need to go to such an extreme, 90 is enough. ?Just a few words have already made everyone at the flight academy have full expectations for this new model that they have not yet seen. Once the exaggerated performance mentioned by Chang Haonan is confirmed, this expectation will turn into trust in the aircraft. Thenin that case, we will tentatively plan to use advanced trainer aircraft for formation. Zheng Liangqun said seriously: During this period, you will use the JJ-7 for adaptive training first. When I go back, I will report to my superiors and include a batch of six J-Jiao-9 in the special budget of the 9910 project and deliver them as soon as possible! The answer to him was naturally a neat and excited voice: Yes! Guaranteed to complete the task! (End of this chapter) Chapter 593 Let the country’s third-generation aircraft be paraded on board! Chapter 593: Let the third-generation aircraft produced in China conduct a military parade! ?After the concise and concise meeting, Zheng Liangqun packed up his things, walked next to Chang Haonan, and asked in a low voice: Comrade Haonan, we have arranged a dinner party tonight, why dont you come and join us? I will not participate in the dinner party. The latter stood up and waved his hand: "I finally took a vacation this time, but I didn''t have much time before I was pulled over for a meeting. I haven''t even met my sister yet...Besides, it was a coincidence that I appeared here, so I won''t bother you to make additional arrangements." At this point, he seemed to suddenly remember something, so he stopped preparing to leave, changed the subject, and asked in a low voice: By the way, would it be inconvenient for you to reveal the air formation of Project 9910? What are the overall arrangements? At this time, at Zheng Liangquns signal, other people had left the conference room one after another, leaving only the two of them nearby. Its not inconvenient for you, but... Zheng Liangqun originally wanted to tell him not to tell anyone else, but after thinking about it, he felt that although Chang Haonan looked young, he was probably at a higher level than himself in terms of confidentiality, so it was completely unnecessary to say this. So he simply answered directly: "Actually, because the aviation industry has developed so fast in the past two years,... some details of the air formation have not yet been fully determined." "It is currently confirmed that there are a total of twelve aerial echelons. The first is the lead aircraft wedge team composed of the August 1st Aerobatic Team, the second is the bomber wedge team composed of H-6, and the third is the H-6 and H-6 "The J-8D refueling aircraft wedge formation, the aircraft types, order, arrangement and review units of these three formations have been finalized." "The fourth one behind is tentatively planned to be the fighter-bomber arrow fleet of the Naval Air Force, but it has not yet been determined whether it will be a group of 6 aircraft with the old J-7 aircraft, or a group of 4 aircraft with the J-7A aircraft that made its first flight last month. Fleet, we still need to observe the stability of the new improved model. Further on, the fifth team is a light fighter wedge team, with a total of 4 groups of 20 J-7Es. The sixth team is an interceptor echelon, with 3 groups of our division with a total of 12 J-8Cs. It has also been decided. "The seventh and eighth are both tentatively determined to be third-generation fighter echelons. There are currently two alternatives. One is to separate 12 Su-27SKs and 4 Su-27UBKs into two echelons. The second is, if domestically produced If the models can be available in time, we can consider putting all 16 imported models into the seventh echelon, and then mix the domestic J-11 and J-10 into the eighth echelon. "The ninth one is a special aircraft. It has not yet been decided whether to mix the Yun-8J and the Yun-8X into a three-plane wedge team, or form three JH-7s. As for the second option, the main problem is that this aircraft looks similar to The previous fighter-bombers are almost the same, which makes them prone to aesthetic fatigue. The tenth is the transport aircraft echelon, which has been determined a long time ago, and the eleventh is the training aircraft echelon we just talked about. Zheng Liangqun finished speaking in one breath, then picked up the cup and drank the cold tea in one gulp. The last 12th one is a helicopter? Chang Haonan remembered that the other party said before that the training aircraft echelon is the last "fixed wing" formation, which means that there are things behind it that are not fixed wing. Zheng Liangqun, who had just swallowed the water, nodded: Yes, 3 groups of 15 helicopter wedges, a mixed formation of Z-9s from Army Aviation and Hainan Airlines. In this plan, you have added many models in the prototype stage, so you are very determined... ?Chang Haonan rubbed his chin and thought. It is normal to bring out equipment and even models that are under development during the military parade. However, the situation of air formations is different from that of ground formations. In order to ensure safety, mature equipment is generally preferred. Or use some special means. ?For example, the Attack 11 concept aircraft at the 70th anniversary military parade was carried on a pallet truck for review (in fact, the aircraft had not even made its first flight at that time). "Leave it in the past...I definitely wouldn''t dare to do it. If something happens, I will become a sinner of the country." Zheng Liangqun also stood up and straightened his clothes: "But hasn''t the situation changed in the past two years? Since the second-class accident of the J-8C prototype the year before last, there has been no major accident at the flight test center for almost two years, even worse than the situation in the combat troops. good." In addition, in the past ten years, our country has indeed suffered too much. From the perspective of enhancing national defense self-confidence, superiors have also slightly relaxed the standards for equipment selected for the military parade. ?Chang Haonan briefly calculated the progress of the project at hand. I feel that if the turbofan 10 progresses smoothly enough, it should still have time to be installed on the J-11 and J-10. ??Although it is certainly impossible to detect the difference between domestically produced engines and Russian-made engines without a closer look, if a fully domestically produced third-generation aircraft can appear at the National Day military parade, even if there are only four or five prototypes, the meaning will be completely different. Since investment in the aviation field cannot recover its cost economically in a short period of time, this unusual "boost" achievement can be regarded as another way to provide positive feedback.????This has also been Chang Haonan''s logic. Superiors are also human beings, and they also need confidence to prove the correctness of their decisions. Of course, he can use words such as foresight or foresight to explain the rationality of long-term investment with a slow return cycle, but in any case, it is not as efficient as giving positive feedback directly. ?Of course, thinking about it, Chang Haonan would not have opened the champagne before halftime at this time and directly told Zheng Liangqun his inner timetable. It would be better to give them a surprise when it is actually installed and tested. ?The group of people parted at the entrance of the office building. Chang Haonan and Zhang Jiujiang, who had just been waiting back in the office, went to the student living area. The others naturally went directly to the college''s guest house. ??Looking at the backs of Chang Haonan and Zhang Jiujiang getting into the car and leaving, Qi Litong came to Zhu Caiyan, the director of academic affairs, and whispered: You can find time tomorrow to ask Director Zhang Jiujiang who Mr. Changs sister is. At the current situation, Zhu Caiyan certainly knew what his dean meant: Speaking of this, I remember that among the female pilots we recruited this year, there was a girl named Chang. She was from Liao Province. Mr. Changs accent just now sounded like she was from Liao Province..." As the Dean of Academic Affairs, he is absolutely excellent in his job. ??Although this place is called a flight academy, it actually does not only major in flight, and the proportion of female students in other majors is not necessarily small compared with some engineering universities. It is actually not easy to be able to recall the situation of a newly admitted student in a short period of time. Qi Litong raised his eyebrows: It would be easier if it was really a female pilot student. ?Zhu Caiyan also took over the conversation at this time: Then Dean, do you need anything extra... But before he finished speaking, he was interrupted by Qi Litong waving his hand: "If it''s as you guessed, then those who can be selected to be female pilots in our academy will have good abilities, so don''t be too nosy at ordinary times and ask Director Zhang to focus on the study and training situation, and then report to Mr. Chang regularly. Just report it over there and let him know that we take it seriously." Also, especially people other than those present today cannot know about this relationship, otherwise it will be an extra burden for Mr. Chang and Mr. Changs sister. At this point, Qi Litong paused for a moment and adjusted the big-brimmed hat on his head: As long as the critical moment comes, a little more support is enough. Excessive force is not a good thing. Zheng Liangqun walked at the front of a group of people. As a pilot, he was sharp enough to hear the conversation between Qi Litong and Zhu Caiyan. But he did not interfere. In fact, his son Zheng Hui also happened to be a student pilot at this school. It''s just that she hides it better than Chang Haonan''s sister... On the other side, Chang Haonan also knew that after today''s incident, his relationship with Chang Jiayao would definitely be unstoppable. Fortunately, the people who knew just now were all members of the school leadership team, and at most Zheng Liangqun and Zhang Jiujiang could be added. Director Zhang, you must be more strict with my sisters study and training, otherwise you will be harming her and me... In one sentence, the style of this parent comes up immediately. ?Although Zhang Jiujiang is still in the dark about Chang Haonan''s current specific identity, he has realized that he is probably not just a "scientific researcher who has participated in several projects", so he nodded quickly: "Don''t worry, I know for sure that flight safety is no small matter. In terms of training, even if the King of Heaven comes, we must follow our teaching requirements!" (End of this chapter) Chapter 594 "Refreshed" NH90 (4K) Chapter 594 Refreshed NH90 (4K) Zhang Jiujiangs words actually contain two meanings. First, I will definitely have high standards and strict requirements in training and learning, and I will be merciless; Secondly, I will definitely take care of things other than these two items. Thats good, thats good. Chang Haonan nodded and replied with satisfaction: Strict teachers produce great disciples, so my sister-in-law asked Instructor Zhang... ??He could naturally hear the implication of what Zhang Jiujiang just said, but he didn''t say anything nonsense like that he didn''t need to be taken care of - ??It would have been fine if he had just met Chang Jiayao like a normal student parent, but now after what happened just now, it is no longer possible to keep a low profile. ?Whether he said this or not, it was impossible for the school to be completely indifferent to Chang Jiayao. In this case, saying so many words would seem pretentious. For a while, neither of them spoke again. Zhang Jiujiang was naturally curious about Chang Haonan''s current status and identity. But years of discipline told him that he shouldn''t ask this kind of thing. ? And Chang Haonan couldn''t rush to explain on his own. ?So, amid the silence along the way, the jeep slowly stopped in front of a building. Compared with the boring and boring teaching building or office building that we just saw, this building looks more modern. ?At least part of the facade in the middle of the building has a glass curtain wall, which already looks a bit like the 21st century. Zhang Jiujiang got off the car behind Chang Haonan and introduced at the same time: This is our colleges new activity center. It is currently the only indoor activity venue that is open to students for a long time after the afternoon classes. It also has a good restaurant inside. ?? Military academy, while belonging to the army, is also a university, so neither the schedule nor the management are as strict as those of combat units. While talking, Chang Haonan and Zhu Yadan had already followed Zhang Jiujiang up the steps to the gate of the activity center. The latter quickly took two steps forward and helped Chang Haonan open the glass door: While I was waiting in the office just now, I called their life counselor. Mr. Chang, please wait in the lobby for a while. I wont disturb your brother and sisters communication. When you need the car again later, just go to the service desk and call my office. Well, Ill bother Director Zhang. ?Chang Haonan walked into the activity center as he spoke. Zhang Jiujiang has arranged things very appropriately. As he just said, Chang Haonan only waited in the hall for about five minutes when he saw two female trainees with short hair and wearing air force spring and autumn uniforms walking up the steps quickly and pushing the door in from the outside. . Logically speaking, even if the faces of brothers and sisters who have lived together for more than ten years cannot be clearly seen, they can be easily identified from details such as body shape and posture. But the training in the military academy can make a person undergo earth-shaking changes in this aspect. Therefore, Chang Haonan didn''t finally confirm that the one walking in front was his sister until he recognized the other person''s appearance. It seems that he received the message from the instructor after class and rushed directly from the teaching area. Jia Yao! It was still dinner time, and there were not many people in the hall, so his voice almost immediately attracted the attention of Chang Jiayao and the other two. "elder brother!" After all, Chang Jiayao is still a girl at heart, and she has only been in school for less than a year. After seeing Chang Haonan, whom she had not seen for more than a year, she ran straight over without caring about her image or regulations. ??With this stance, which was similar to a charge, if he hadn''t known in advance that the other party was the biological sister of his leader, Zhu Yadan would have even pulled out his gun. "Brother, I thought you had forgotten me..." Chang Jiayao came to Chang Haonan. Fortunately, she still had her last bit of sense and did not jump directly into the latter''s arms. How could I have forgotten you Until now, Chang Haonan had nothing to do with his younger sister, so he could only quietly take a half-step back and put some distance between her and her sister. Chang Jiayao did not continue to stick it on, but looked up and down, and then asked in a hesitant tone: Brother...have you been under a lot of pressure lately? ?This thing is a bit gratuitous, but Chang Haonan just thought that the other party cared about him, so he answered without much thought: Okay, I have a lot of projects on hand, why do you ask this suddenly? I feel like youve become shorter, brother Are you feeling overwhelmed by the burden of work? ?Zhu Yadan in the back covered her forehead with one hand, obviously having a hard time holding back her laughter. As guards, they have received strict training. No matter how funny it is, they will never laugh. Unless you can''t help it. Chang Haonan rolled his eyes helplessly. ??Due to the heavy amount of exercise after entering the flight academy, and the fact that Chang Jiayao is only 18 years old now, she has grown to be almost as tall as Chang Haonan. Thats because youve grown taller during this period. You used to have to look up at me, but now you just have to look at me levelly For a moment, he had some doubts about whether instructor Zhang Jiujiang could train his stupid sister into a qualified pilot. After a brief moment of playing tricks, Chang Jiayao finally remembered that they were not the only two brothers and sisters present, and quickly gathered the girl who had just been behind her: Brother, this is my roommate, her name is Liu Yang. She has very good academic performance. I owe my review of several courses to her Obviously, at this time, she had not realized that her brother had just asked the instructor to be "tough and strict" with her, so she chatted about study-related topics without any psychological burden. "Hello." Liu Yang greeted Chang Haonan timidly. Henan accent. No wonder he is the king of roll kings. Hello, thank you for helping our Chang Jiayao with her studies. Chang Haonan said as he took out a few paper bags from the bag he carried with him: "I came here from Shengjing this time and didn''t have time to buy any gifts. You can take these snacks back to the dormitory and share them..." Actually, Chang Haonan thinks that Liu Yang will most likely be China''s first female astronaut in the future. Although this name is really common, if you calculate the age, it should be about the same. ??And the place of origin and education status are also consistent. ??While Liu Yang was still hesitating, Chang Jiayao had already received it in his hand with a smile on his face: Thank you, bro~ The latter will not suffer any loss since he is a sweet talker anyway. After collecting the gifts, Chang Jiayao turned her eyes to Zhu Yadan, who had been following Chang Haonan just now: Um, brother, is this...sister or...brother? In fact, when she first saw Zhu Yadan just now, her first reaction was - ????What a handsome little brother! But she soon realized that this might not be the little brother... I was very confused about this for a moment. So far, Chang Jiayao still doesnt know what kind of job Chang Haonan is engaged in. And the latter seemed to have no intention of letting her know. Therefore, after assessing the situation, Zhu Yadan took the initiative to introduce himself: My name is Zhu Yadan, Mr. Changs assistant. ?Speaking like this still reveals some feminine characteristics, so there is no need to answer directly about one''s gender. Ah, Im sorry, Sister Yadan...you are so heroic... ?Chang Jiayao continues to travel the world with her sweet words. "Okay, don''t be poor, let''s go, I see there is a small stove in this activity center, I will take you two to eat..." Just when Chang Haonan finally saw his sister. Beijing, Institute of Computing Technology, Chinese Academy of Sciences. Liu Hongbo is in front of a supercomputing console, waiting for the last few results of this round of calculations to be generated. ?Similar to the situation when Chang Haonan came here on a business trip two years ago, the reason why he is here is because the 602 Institute in Bingcheng does not have excellent computing conditions, so he had to ask for help from foreign aid. Its just that like Chang Haonan, he didnt happen to meet a big guy in the algorithm field like Xu Yang to help solve the problem, so basically everything had to be done by himself. Behind him, stood another young man who looked to be about the same age as Chang Haonan. ?Wang Zhilin, a young technician who was the first to discover problems with the traditional system of Dolphin helicopters during the calculation process. ?Of course, this person is relatively "normal", and no one can solve all the problems easily. ??However, Liu Hongbo found that he had a good foundation, so he was specially brought here as an assistant this time. On another level, of course. ?Only by dealing with people like Wang Zhilin a lot, can the former be convinced that it is not that he is too good, but that his junior brother is too inappropriate... Teacher Liu, I still cant figure it out. When you were calculating the design of the entire transmission system, why did you add an additional precise limitation on the performance of the bearing set? Looking at the calculation section in front of him and not knowing when the results would be available, Wang Zhilin mustered up the courage and asked Liu Hongbo next to him: In principle, if this restriction is removed, our calculation amount can be reduced by about 40%. Or, if you are worried that the performance of this bearing group exceeds the standard, you can just add an upper limit. There is no need to limit this area to death..." Is this... Liu Hongbo rolled his eyes slightly. I dont know what he wants to say. This is what Mr. Chang specifically emphasized when assigning tasks before. The latter said at that time that this gear set must use the performance indicators he gave, without any changes. Other parts can be given a higher degree of freedom. But in order to ensure his image, Liu Hongbo still gave an explanation after a period of brainstorming: "It''s because after connecting with the European side, we specifically considered their convenience in the parts procurement process. This bearing set is the core component of the transmission system, which determines the upper limit of what the entire equipment can withstand, so we decided to make a comparison first. safe." In fact, this explanation was speculated by Liu Hongbo himself and seems to be the most reasonable possibility. Hence, it is not difficult to persuade others. Wang Zhilins eyes lit up after hearing this: This is what you said before. When we design, we cant just think about whether we are comfortable on paper, but we must also try our best to take care of the production and processing process? Thats great, Teacher Liu! ??A round of rainbow farts actually made Liu Hongbo a little embarrassed. He touched his nose and nodded: Thats right, thats what happened. "But this is not what I said, it was said by Mr. Chang. He often emphasizes this point when working on projects. A good designer should not only calculate what is on paper, but also consider how his design should be done. Landing." ?Wang Zhilin looked like he suddenly understood, and then asked: By the way, Teacher Liu, Ive seen Mr. Chang from a distance before, and he seems to be about the same age as me. How come he is so powerful at such a young age? Liu Hongbos people are numb Why? Yeah, why? ?He really wants to know too? Fortunately, this awkward atmosphere did not last long. The last few numbers quickly appeared at the bottom of the calculation log. ? Liu Hongbo breathed a sigh of relief when he saw this: Write down the numbers, and immediately calibrate the overall performance and process parameters of the entire transmission system, and then send this improvement plan to the Europeans ?According to the agreement at the time, China should be responsible for the technical solutions for the main rotor, front fuselage and transmission system. ?However, considering that the NH90 was a semi-finished project that even had prototypes participating in test flights, Chang Haonan directly followed his own general habit of doing projects and asked Liu Hongbo to prepare and send the most critical transmission system plan first. In this way, the two prototypes that are already considered scrapped can be used to test the transmission system in advance. Firstly, it is to maximize the residual value, and secondly, it can also save project time. Otherwise, if we wait for these three parts to be completed and then test them separately in Europe, it will take at least a few extra months of work. ? This operation of squeezing efficiency to the extreme almost burned out Eurocopter''s CPU at the beginning. After hesitating for several days, I finally realized the huge advantages over the traditional solution and agreed. ?Of course, Chang Haonan actually had a third-level purpose, but he didn''t tell anyone explicitly. The design of this transmission system is of course no problem. ?However, considering the special performance calibration of the core bearing group, Europeans will inevitably suffer a loss during the test. ??If they were careful enough and discovered the problem in time, it should just be a cracked bearing or something similar. If it is not done in time, it will most likely eventually lead to overheating of the transmission system, or even direct irreversible damage. If you are particularly aggressive, there is even a possibility of a plane crash. In short, the aircraft testing this transmission system will definitely not be good. In this case, using the two aircraft in the scrapped case can at least reduce some losses. Otherwise, if the newly built new prototype crashes directly due to transmission system problems, Eurocopter will be severely hit and suspend the project, which will be a complete loss. Teacher Liu, everything is calibrated, please take a look! ?A few hours later, Wang Zhilin raised his head again, pointed at the electronic drawings on the computer screen and said to Liu Hongbo. (End of this chapter) Chapter 595 What a coincidence. The Japanese happen to have the parts we need. Chapter 595 What a coincidence, the Japanese happen to have the parts we need ?After several inspections to confirm that the parameters of the transmission system were calibrated correctly, the relevant design plans were quickly sent by human express to the Eurocopter headquarters R&D center in Marseille, a city in southern France. ?Of course, a huge amount of design documents and related drawings, even after they have been digitized, cannot be carried by one person in a bag. Whats more, confidentiality and safety issues must be taken into consideration when traveling abroad for business. So, Bingfei Group directly sent a delegation. The leader of the team is Wang Xibo, deputy director of the design office of the 602 Research Institute, which is responsible for the research and development of helicopter avionics systems. Compared with fixed-wing aircraft, helicopters have one more control axis for flight, so the complexity of the avionics system, especially the flight control part, is far greater than that of the former. On the other hand, helicopters, except for some special models, are actually not considered "high-value materials" in the force establishment sequence. ?Transport helicopters are equivalent to flying trucks, while armed helicopters are equivalent to flying tanks or infantry fighting vehicles. The loss tolerance for helicopters is also much higher than for fixed-wing aircraft. This means that the cost is very tight. The combination of these two reasons led to the fact that until the late 1990s, the vast majority of helicopters on the market were still using traditional hydraulic flight control systems, which posed considerable risks in terms of safety and response speed. ??The NH90 was the first model to attempt to use fly-by-wire flight control on a helicopter and only use the hydraulic system as a backup. ?Practically speaking, the first two prototypes that have been put into flight test have been relatively successful in verification at the flight control level despite many problems. ?This is another reason why Bingfei Group chose to send Wang Xibo to lead the team to France ? With the opportunity of the Z-12 project, I became familiar with the design logic of helicopter fly-by-wire flight control. Dont ask, the question is about independent research and development. The question is because I thought NH90 looked good, so I built a similar one later. ?Similar to the situation when Le Maire arrived in China last time, Eurocopter also sent a special convoy to greet Wang Xibo and his party who were delivering documents. ? Its just that Le Maire himself is based in Paris and is no longer from Eurocopter, so the person who came forward this time was Pierre, who is currently in charge of the NH90 project. Hello, its nice to see you again so soon. ??The leaders of both parties shook hands, and Pierre also patted Wang Xibo warmly on the shoulder. In fact, the former was a bit surprised at first that Bingfei Group was able to come up with a complete transmission system solution (strictly speaking, two sets including AS365) in such a short period of time. ?But if you think about it carefully, during that negotiation, the Chinese people believed that their Eurocopter Groups design route for the transmission system was flawed. It is also a methodological issue. ? And this kind of problem is indeed difficult for those who dont know it, and its not difficult for those who know it. If you take the wrong route, the more you do, the more mistakes you will make, but on the right route, it may be a smooth journey. ?So, after some rational thinking, Pierre felt that China''s actions made it seem more real. ?Of course, the reason for the emergence of such a strange brain circuit is largely because he has been really exhausted mentally and physically by this project recently. Lets help each other. I hope our cooperation will go well. ?After a few rounds of fruitless greetings, the group got into several buses in the convoy. ??Wang Xibo also went abroad for the first time. Just like Le Maire, who visited China for the first time before, he also observed the street scene outside the window intentionally or unintentionally. ?Before landing in Marseille, he actually had some expectations and fantasies about the social conditions of a developed European country like France. Now that he is in it, as the largest city in southern France, Marseille is so prosperous that he has never seen it before. While Wang Xibo lamented that it was worthy of being an established developed country, he also wondered with a little envy whether China''s big cities could one day be built to this level. ?However, before he could finish his emotion, he noticed a commotion on the sidewalk outside the window. ?It seemed that someone had robbed something and then ran away. Someone was chasing him, causing people around him to flip over. Wang Xibo was stunned when he saw this scene at first, then laughed at himself for what he had just thought, and finally rested his head on the seat cushion again, closed his eyes and rested. As the motorcade shuttled between cities, everyone soon arrived at the Eurocopter headquarters on the outskirts of Marseille. Mr. Wang, please. ?Under the guidance of Pierre, the group of people got out of the car one after another and walked into the company park with no end in sight. ??Compared to the more glamorous urban areas just outside, although the liveliness here is much lower, the beautiful natural environment and the high-tech buildings make it feel more like a future city in a developed country. Not to mention anything else, the building of this institute alone is much more spectacular than the one of 602 Institute. For the technicians who came here, this is a more enviable place than the bustling lights of the city. This is the kind of research institution that can be considered... ?Wang Xibo rubbed his nose and made up his mind: When the group has money in the future, it will have to tidy up the environment in the compound... ?Thinking this way, of course he couldn''t show anything anymore, so he walked into the R&D center while his mind was running fast. The design information of the NH90 helicopter transmission system is a hard drive installed in several password boxes. There is no paper version. As to why not use a bigger suitcase Because large luggage needs to be checked in, and this process is obviously very risky. Whether it is the risk of information leakage or the risk of equipment damage due to violent transportation. Eurocopter has already arranged the handover ceremony. ?A Chinese-French bilingual blue background with white text banner is hung directly above the lobby of the R&D center. Below it is a row of tables and chairs, and a promotional board behind it. Be low-key, but there must be no shortage of processes that need to be followed. ?After a brief opening ceremony, Wang Xibo and Pierre signed their names under the document, and at the same time symbolically handed over their password boxes to each other - According to the agreement, Eurocopter Group will provide design information for the helicopter avionics system. ?In addition, Wang Xibo and others will work here with their European colleagues for a period of time. The superficial reason is that since they are already in in-depth cooperation, just exchanging design data is definitely not enough, and more people need to be left to exchange some experiences. ?The deeper reason, which even Wang Xibo himself is not entirely clear about, is that Chang Haonan needs someone from China in France during this period. The first is to convey the situation back to the country in real time so that he can be prepared to respond at any time. Secondly, once the two prototypes malfunctioned during the test, having someone present would be able to clear the air immediately and put the blame firmly on the NSK Group. Therefore, after completing the data handover ceremony, Wang Xibo divided the people he led into two teams. One team went to inspect the avionics design of the NH90, and the other team was responsible for submitting the transmission system design to Eurocopter''s technology. The staff made it clear. Pierre originally thought about whether he should arrange a dinner to reflect their old European style and avoid embarrassing Lanxi, but seeing that his Chinese colleagues were so eager to get into work, he put the matter aside Went. After all, he was in a hurry himself. ?The two NH90 prototypes are currently grounded, and the design team has taken a tough stance in revising the cooperation plans with several partner countries. The pressure they are currently facing is indeed considerable. Fortunately, the data are all digital and organized in advance, which saves both parties a lot of non-technical trouble. The colleagues in China are very sincere ?Pierre stared at the computer screen in front of him and sighed inwardly: Look at this neat classification, its all for our efficiency. We hand over the information in the morning and can start work that afternoon ?Of course he would not know this. This was because Chang Haonan was afraid that the efficiency of the French would be too low, which would affect his own plan. He only regarded it as a good move from China. As professionals, it only took his team about a week to basically read the overall design plan, and found that there was a huge difference between the design provided by Huaxia and its own old plan. It turns out that the design here achieves compatibility between two engines with different performance As well as the transmission part to the tail rotor, the power distribution is much more reasonable, and the transmission loss may be reduced by 5% Can such a narrow optimization range really allow them to find the optimal design point? It seems that China has a rich talent pool in the field of multi-objective optimization... Of course, just like a person who has just seen the answer to a complex exercise, although he can understand it, it will take a certain amount of time or even the guidance of others to truly understand it and integrate it for his own use. Mr. Wang, I see that there are some parts with strange performance calibration in this design plan ?After the initial shock, Pierre quickly discovered several parts that made obsessive-compulsive disorder more uncomfortable. Not only is it a problem of mental shock, but also a large number of parts with unused parts numbers, which means that they may have to find a new group of suppliers before entering mass production. "There is nothing you can do about it. The performance characteristics of the two engines you plan to use are very different. It is already very difficult to find such optimization points, especially the bearing set of the main reducer you just mentioned. , even a slight deviation will not leave enough safety margin. ?Wang Xibos answer was flawless because he thought so too. Okay, then Ill have to let the marketing department contact the suppliers again ?Hearing what Wang Xibo said, Pierre could only admit it. It is better to be able to solve it than not to be able to solve it. If this is not possible, you can even consider finding a bearing company to customize a batch of products. In that case, the supply cycle may be very long. ?However, the actual situation seemed to be much smoother than Pierre imagined. ??Just that night after he assigned the task to the marketing department, he received a call back from the other party: Pierre, for those new parts you requested from suppliers, we... found them in stock. "Spot goods?" ?For a moment, Pierre felt that he might be blessed by God, and his voice even trembled a little: Do all the parameters meet the requirements? This time the standards are very strict and there cannot be any mistakes. Full compliance with the requirements. The person on the other end of the phone replied: "And...if it wasn''t for a few hours of work, I would have thought that this bearing was specially customized by someone, and it is exactly the same as the request you sent in the afternoon." So, which company can offer the product right away? NSK Group, a Japanese company. ?Pierre was silent for a few seconds. He also felt that it seemed a bit too coincidental. But even if I exhaust my whole lifes imagination, I really cant think of any possibility other than coincidence, so I have no choice but to put the receiver to my ear again: Contact them as soon as possible! (End of this chapter) Chapter 596 The engines of Turbofan 10 and J-10 match Chapter 596 Engine Variation Matching between Turbofan 10 and J-10 Europeans, especially Southern Europeans, naturally cannot have high expectations for their work efficiency. ???Although for the leader Pierre, the current situation of the NH90 project is close to imminent, so his subjective initiative is full, and he can''t wait to drag Wang Xibo to have fun together every day. But other technicians under his command did not share this sense of urgency. After all, even if the sky falls, there will be someone high to support it, and it has little to do with the workers below. As a long-established power in Western Europe, France last faced the danger of national subjugation and annihilation 50 years ago, and now it does not have the same sense of urgency that the Chinese people face in this era. For most people, the Cold War is over, cant I still enjoy it? ??Moreover, on the other hand, Wang Xibo flew thousands of miles from Ice City to Marseille not specifically to serve Pierre. ??As the director of the research office responsible for avionics design of Bingcheng Aircraft Industry Group, his main focus must still be on learning the fly-by-wire flight control technology of NH90. ?Helping Pierre and the others digest and absorb the design plan brought by China can only be regarded as a normal performance of the contract. Hence, after receiving this new batch of technical information, the NH90 project is indeed advancing faster than before. But not much. It will probably take several months to build a new transmission system and then install it on one of the prototypes. ?At the same time that Wang Xibo was leading the team to carry out work in France, Chang Haonan had also ended his short vacation and returned to Shengjing. Although the component-level testing of the turbofan 10 went smoothly, it was still a key node of the project, and it was not easy for him, the chief designer, to be the hands-off boss all the time. ?Especially the fan and high-pressure compressor parts, it also involves the verification of his idea of ??using blade separation flow active control technology to accurately utilize the vortex structure within the diffuser cascade. After all, it has to be Mr. Chang. The difference between the actual experimental results and the theoretical value of the design plan is only 3.6, which is less than 5. Its simply Its simply a divine calculation... A dozen core members responsible for the overall design of the turbofan 10 and the compressor section were standing in front of the compressor test bench, looking at the report that had just been compiled by the operators. Haiyide looked at the boost ratio of 25.16 in the results column with a tone of half admiration and half disbelief. When determining the design specifications of the turbofan 10, Chang Haonan set the total boost ratio within the range of 25-25.5 to ensure that both installation targets can achieve a good balance between subsonic and supersonic performance. balance. But normally, there will still be some differences between the location of the design point and the actual product. It often requires several or even dozens of iterative adjustments to truly achieve the desired performance. ?During the previous theoretical calculation and design stage, Haiyide also thought about whether, with Chang Haonan''s extraordinary level, it would be possible to reduce the time required for this process, or even achieve it. But I have thought about it and thought about it. When the miracle actually happened before his eyes, he still inevitably felt a sense of unreality. Chang Haonan naturally saw this gratifying result, which means that the time spent in component-level testing can be further shortened. Such a good result...cant be entirely attributed to me. Hearing Hai Yide''s words of praise which were somewhat unflattering, Chang Haonan turned his eyes from the report in his hand to the compressor on the test stand and answered. In fact, this sentence definitely comes from the heart. ??If he were to use his current level and combine it with the capabilities of computers in this era, then the design would definitely be possible, but if there was a slight deviation, several corrections would definitely be inevitable. The ability to obtain a result of 25.16 in one go when the design point is 25.25, after all, relies on the function of the system. ?However, when other people hear this sentence, they naturally think that Chang Haonan means that other people here have also made significant contributions. ?So they all said that they were only doing their jobs under the leadership of Mr. Chang, and they did not dare to take advantage of others. ?This misunderstanding did no harm to Chang Haonan, and it was impossible for him to explain it. He just smiled and moved the topic to another place: The testing of the remaining components must be accelerated, especially the combustion chamber and turbine. These two hot-end core subsystems, together with the high-pressure compressor, basically determine the key core performance characteristics of the engine. With the performance characteristics, especially the air intake characteristics, I can optimize the design of the aircraft based on the attributes of the engine. "The design plan of the aircraft?" Hearing Chang Haonan suddenly turn to mentioning the outflow of the aircraft, that is, the aerodynamic design part, Haiyide was stunned, and he couldn''t follow the train of thought: You mean In the past, our aero engines were completely or partially imitated, and many of the performance parameters were not determined by ourselves. Chang Haonan put the test results on the table next to him, turned around and walked out and said: Coupled with the fact that the design level and manufacturing level are not very good, the specific performance of the built engine may be unknown before it is installed. So when it comes to engine-transformer matching, we mainly focus on broadening the adaptability range of the intake duct, so as to match the unknown engine performance indicators as much as possible. Hearing this, several people, including Haiyide, showed some embarrassed expressions or actions. After all, the problem Chang Haonan mentioned does exist. The long-term "heart disease" in the field of aviation power has indeed put a lot of intensity on the overall design department. Although it is true that there are some engine models whose development was suspended due to the cancellation of the aircraft project, in fact, the reverse situation is more common, that is, the aircraft models died due to insufficient engine quality. It is a yes if you have trained with weights. Of course, Chang Haonan obviously did not want to emphasize this, so after a brief pause, he immediately changed the subject; However, now that we have the first engine model that is completely independently developed and has independent intellectual property rights, we can go towards improving the matching accuracy at the level of aircraft engine-transformer matching. This is something that I and the 611 Institute have already agreed on. ? What Chang Haonan is talking about is naturally the second phase prototype of the J-10 that will replace the DSI air inlet and make overall improvements to the aerodynamic design Although the turbofan 10 has two main installation targets, the J-11''s adjustable inlet has an extremely wide range of application. As a heavy-duty fighter, it weighs two to three hundred kilograms, so there is no need to worry too much about engine-transformer matching. effort. Thats right After hearing Chang Haonans answer, Hai Yide patted his head gently: After this period of time, I almost forgot that Mr. Chang was originally engaged in aircraft design... Then you mean that the current design of Project No. 10 still needs to be changed? At the moment, the people next to Chang Haonan are all people in the field of aviation design. Although they have not separated yet, they are still connected to several general offices. Especially the 611 school is located in Chengdu, more than 2,000 kilometers away. So it is normal that they are not very clear about Chang Haonan''s plan for the J-10. Of course. Chang Haonan immediately responded in the affirmative, and then asked: You should know about Guihangs new model that first flew last year, the JJ-9, right? Haiyide nodded: Of course you know this. The head office issued a special feature at the end of last year to introduce their advanced examples of using this model to overcome difficult stages and achieve a turnaround from losses to profits. I plan to replace the J-10 with a DSI air intake like the J-9, which can reduce some weight and is very helpful for the performance of the aircraft. We are all from the aviation system, and the confidentiality authority is high enough, so there is nothing to hide in this matter. As a fighter jet, the J-10 has to face far more complex flight conditions than the J-9, so the requirements for the air inlet design will be higher. Peoples general impression is that DSI inlets are not good at high-speed flight. In fact, this is a complete misunderstanding. ? DSI air intake is only optimized in a narrow range. A typical example is the scramjet engine on many hypersonic weapons, which also uses the DSI inlet. ? Its just that there are still hundreds of millions of differences between missiles and aircraft. The former can rely on boosters to get through this stage of low air intake efficiency. But for ordinary aircraft, it may not be used in high-speed operating conditions, but it can always be used in low-speed operating conditions, so there is no option of "optimizing only high speeds but not low speeds". ?But having said that, if the adaptability range of the inlet is wide enough, then it is not impossible to expand the advantageous working range to the transonic range... (End of this chapter) Chapter 597 Test flight F14 Chapter 597 Test Flight F14 At the same time, Factory 112, also in Shengjing, overhauled and upgraded its workshop. In fact, just a month and a half ago, this factory, which was recorded as 70# in the official archives, did not have an exclusive name Generally speaking, employees in the factory directly call it the assembly workshop. 42 years ago, China''s first self-produced jet aircraft "Zhong 0101" rolled off the assembly line here. After that, J-6, J-7, and J-8 series aircraft were also assembled here. ?However, with the last two J-8Ds in the order two years ago being delivered to the troops, the 70# factory was still unable to keep up with the pace of the new era. Because the supporting facilities are really old, and the 36-meter span that looked like a giant back then is no longer enough to handle the increasingly complex assembly process, the new J-8C and J-11 aircraft have been produced in three recent years. Final assembly was carried out in the newly built factory building. Shengfei Group also planned to remove it from the final assembly workshop sequence at the beginning of the year. However, the historical significance of the 70# factory building is really special, and it cannot be demolished casually. So its use after the production task is completed has been unresolved. The leaders of the group even planned to convert it into an aviation industry-themed museum, but in the end they gave up because it was located in the middle of the factory area and could not be opened to the public. It wasnt until a few days ago that He Ming finally made a plan when he looked at the F14s parked in the corner and had been torn into pieces. He feels that with the gradual extension of the service life of future fighter jets and the continuous development of aviation technology, after flying like this for more than ten or twenty years, there will probably be more and more cases where new technologies will be used to extend the life of the aircraft. Since the individual conditions of each aircraft are different after long-term use, this kind of work cannot use the pulse production model, so the man-hours alone are not necessarily much less than building a new aircraft. It would be a bit wasteful to occupy the production and assembly workshop. So, without rest, He Ming simply reported to the group''s board of directors and designated factory #70 as a workshop for overhauling and upgrading old models. Today is a "good start" here. ?As the door of the workshop was slowly raised, a huge fighter jet painted in blue camouflage paint slowly came to the apron area outside the workshop, pulled by a trailer. It was naturally one of the batch of F14s sent by the Persians. It was pulled out at this time because it had completed overhaul, life extension and modernization upgrades, and was ready for test flight as a new model prototype. Although the aircraft is not a Chinese aircraft, since it was modified in China, it must abide by the rules here. Therefore, the big red flower tied to the nose of the aircraft is definitely indispensable. In fact, this aircraft had been modified a few days ago and had even undergone a round of basic functional inspections. Now its just a make-up ceremony. ?Compared to the batch of F4s upgraded in Persia, the upgrades of these F14s are more thorough. Except for some core structural parts, they are basically equivalent to being reborn into a new aircraft. So, the Persians simply gave this aircraft a brand new codename, F14IC. In fact, it only took less than two months from the time this batch of aircraft were delivered to the start of construction until they were fully completed. For a brand-new model that has never been touched before, under normal circumstances, it should not be possible to complete it and roll off the production line so quickly. ?However, the current situation of this business is rather special. ?Although Persia does not have the ability to modify the F14 alone, they have indeed put in a lot of effort in the past to ensure the combat effectiveness of these aces. ? Even in the early 1990s, an attempt was made with the Russians to try to get the F14 to launch Russian-made weapons such as the R27. ?Although these efforts were not implemented in batches in the end, the relevant information was relatively well prepared and provided to China earlier than the first batch of aircraft. ?This allows Factory 112 to save most of the preparation work before modification, and can start work quickly after getting the aircraft. ? In addition, the modification equipment is all mature models. As an aircraft from the 1970s, the body materials are not too complicated, so it can achieve such high efficiency. ??The brief celebration ceremony attended by representatives of the two countries ended quickly. Immediately afterwards, the two test pilots Fu Guoxiang and Zhao Mengtian climbed into the front and rear cockpits of the aircraft respectively. Several electrical auxiliary vehicles also quickly came from different directions. The ground staff were slightly unfamiliar but still moved the cables coherently. and the inflatable tubes were connected to the aircraft respectively, and then various inspections before takeoff began. For Fu Guoxiang, who is sitting in the front seat and responsible for the main flight mission, this is definitely a quite novel experience. Although he has participated in test flight missions of more than a dozen different aircraft types in the past, he has never been exposed to an American aircraft with a variable sweep wing. Strictly speaking, Zhao Mengtian in the back seat was not a test pilot, but a Blue Army brigade pilot who was temporarily seconded from the Dingxin training base in order to familiarize himself with the F14 in advance. ??While the ground crew was busy, Fu Guoxiang lowered his head and checked the layout of the instruments and screens in front of him again. ?Of course, as an experienced test pilot, he could not just improvise. ? A week ago, Fu Guoxiang had printed out the appearance of the F14 cockpit in advance and posted it on the wall of his dormitory, practicing whenever he had time. But for test flight missions, no matter how cautious you are, you cannot be too cautious. Especially American aircraft have different instrument settings from Chinese/Soviet (Russian) aircraft. If you are not skilled enough, it is easy to make mistakes in the sky, causing big problems. Attention test pilots, perform maneuver checks. ??The voice of the old ground crew leader came over Fu Guoxiang''s radio. Rudder, left, right, okay. Aileron, counterclockwise, clockwise, good. The so-called action check is to move the operating surfaces of the main wing horizontal tail and vertical tail, as well as the pylons and tail nozzles before taking off to see if they correspond to the operation feedback. To avoid wrong wiring, the execution action will be opposite to the input signal. ?This process is the first thing that aviation school students learn after getting on the plane, and it can be said that every pilot is familiar with it. But today is different from the past. Uhthe wing sweep angleis adjusted to the minimum. Obviously, this is the first time for the ground staff to study this program and they are not very proficient. The F14''s swept wing changes are linked to the flight control computer, but the pilot can still control them independently if he wants. Fu Guoxiang followed the instructions and pulled the control lever of the swept wing back hard. ?This overhaul and upgrade process did not make any changes to the F14''s wing action system and flight control system. Firstly, they are afraid that the construction period will be too long, and secondly, the Persian Air Force uses the F14 close to the interceptor aircraft. In fact, it rarely adjusts the swept wing angle frequently, so the remaining life of this part is also relatively long. Even so, after all, the aircraft has been completely dismantled and reassembled, so it still needs to be inspected. ?Although he should focus all his energy on the front at this time, he really couldn''t control his curiosity. He turned his head slightly and looked at the wings that were extending outward according to the movements of his hands. Its amazing Fu Guoxiang thought so. It is true that from the perspective of aviation technology, variable-sweep wing technology would have lagged behind in 1998. But technology is technology, and the complex and sophisticated mechanical beauty contained in this structure is another matter. Even Fu Guoxiang was in a trance for a while. The reaction from the ground staff outside was similar. Although I had received training before, seeing this huge wing spread out like the wings of a raptor still had enough scene impact. After a period of time that was obviously longer than before, Fu Guoxiang heard the following operation instruction: Adjust the wing sweep angle back to the maximum. With the hum of the hydraulic system working, the wings returned to the retracted state. At this time, the aircraft returned to a layout similar to a tailless delta wing. I have to say that the Americans were able to create such a thing in the 1970s, which is indeed... awesome. In the tower command center in the distance, He Ming put down the telescope in his hand and uttered a less elegant word. ?Of course, the translator next to him polished it up a little when paraphrasing it. Thats why we have kept these Tomcats as our main models until today, and even spent a lot of money to upgrade them. The Persian general next to him replied, but did not put down the telescope. After all, this is their plane, so they must be more attentive. ?While the two were talking, the F14 on the tarmac had already started its engine. ? Turbofan 9A uses an ejection nozzle with a relatively simple structure, so there is no need to additionally check the adjustment status of the tail nozzle. Unit 1401, prepare to begin taxiing. Fu Guoxiang''s voice sounded on the tower radio. ?At the same time, the ground crew in the distance has begun to remove the pipes and cables connected to the aircraft. Received, taxi allowed. Following the commanders order, the huge fighter jet in the distance slightly raised its nose and began to move towards the take-off runway. (End of this chapter) Chapter 598 We don’t have the strength to fly big bricks one day, right? Chapter 598 Is there ever a day when we cant fly big bricks? As the test flight and transportation site of Shengfei Group, Beiling Airport is not large in scale. After all, there is no daily take-off and landing pressure here. Hence, within a few minutes, aircraft No. 1401 was already parked at the end of the takeoff runway, and the wings were readjusted to a 20 sweep angle that was more conducive to takeoff. The area has been cleared. Unit 1401 can take off. ?Fu Guoxiang put on an oxygen mask, maintained the brakes and slowly pushed the throttle valve, and watched as the engine tachometer pointer, which had been replaced by a Chinese style, slowly turned to the right. As a test pilot stationed at Field 112, this is his first time coming into contact with the turbofan 9A model. In fact, there are currently only three aircraft in the entire China - the 01 and 02 prototypes of the JH-7A, and the No. 1401 aircraft, which only uses the turbofan 9A. ?However, the steady increase in speed still brings considerable confidence. It even reminded him of the test flight of the J-8C after major changes two years ago. They are also two engines installed for the first time, and they also have such a stable speed. ?After the engine reached takeoff thrust and stabilized for a few seconds, Fu Guoxiang released the brakes and the plane began to roar and accelerate on the runway. ?Fu Guoxiang himself was a little surprised by the pushing feeling coming from behind him. In his opinion, such an aircraft, which still has an empty weight of about 17.5 tons even after weight reduction, seems to be relatively clumsy. Compared with the J-11 he had flown before, the F14''s greater weight and drag made the acceleration capabilities of this model less optimistic and held it back slightly. However, the excellent lift coefficient still allowed this aircraft to use only Take-off conditions are reached at about one-tenth of the runway, which is about 350 meters away. After all, the F14 is a relatively mature design. The "first flight" after modification is not exactly the same as the real first flight. The setting of flight subjects is much more open. ?After pulling up the plane, Fu Guoxiang retracted the landing gear, then allowed the plane to accumulate some speed, and then made his customary high-angle climb. Almost at the same time as the throttle valve was pushed to the end, the two engines sprayed light blue tail flames with Mach rings downward in mid-air. The wings also adjusted to a higher resistance in less than 7 seconds. Low sweep angle state of 68 which is more suitable for acceleration. ?Two new engines with considerable low-altitude and low-speed output have provided Fu Guoxiang with quite confident climbing capabilities. At least in his opinion, the current climb process is close to 70, and there is almost no loss of speed. Increasing the sweep angle will greatly reduce the lift coefficient provided by the wing, but... Strong efforts can produce miracles. On the other side, this slightly wild action also caused a burst of exclamation in the command center of the tower. It was, of course, a representative from the Persian Air Force. Since there has been no formal means of importing spare parts for more than 20 years, in order to save the life of the machine, they rarely engage in such "wild" driving. On the other hand, if the TF30 engine in the past dared to carry out such large-scale and violent maneuvers at low altitude, 80% of them would have entered a surge state... The climb rate shown this time is obviously higher than in the past..." ??A colonel standing next to the leading Persian general stared at it for a while, and then estimated. Of course. He Ming already had a basic idea of ??the performance of this aircraft, so his attention was not always focused on the aircraft outside. After hearing the Persians evaluation, he immediately explained: We replaced the material of the skin part that does not involve the main load-bearing structure, reducing the empty weight by about 700kg. Moreover, the sea-level thrust of the replaced turbofan 9A engine has increased by more than 17% compared with the past. By doing this again and again, the thrust-to-weight ratio of the entire aircraft near takeoff can be increased by almost one-fifth, and the power performance is naturally completely different. When He Ming said this, he even had a confused feeling ?The principle of making bricks fly with great force, one day I can tell it from my own mouth. ?Its really magical. "in addition." He Ming''s tone suddenly sounded a bit suffocating: I can assure you that the aircraft was filled with a standard amount of fuel before the test flight, and there was absolutely no situation where the engine was turned on in advance to consume fuel, thereby reducing the take-off weight. Hearing this sentence, even the Persian general laughed directly: Well, we have been watching you just now, and you really didnt do any tricks in this regard..." The two of them were talking about what happened when Persia purchased US military fighter jets. ?The candidates at the time were Grumman''s F14 and McDonnell Douglas'' F15. Originally, the flight performance of the latter should be much better, but Grumman specifically asked McDonnell Douglas to perform the performance first, while its F14 kept running its engine on the ground to consume fuel, thus making up for the thrust-to-weight ratio to a certain extent. disadvantages. ?Although the authenticity is virtually impossible to test, this story has become one of the famous urban legends in the field of international arms sales. After the brief joke, He Ming quickly returned to the topic: Getting back to the subject, in addition to the greater advantage of sea-level thrust, we adopted blade separation flow active control technology in the design process of the turbofan 9A engine, which can cope with very extreme intake distortion. "Although the specific flight envelope data still needs to wait for our test pilots to fly out the results, from a qualitative point of view, the improved F14 can allow pilots to perform violent maneuvers that were unimaginable in the past, such as...you have already done it anyway Saw it. ?The F14A purchased by Persia is an earlier batch of technical versions. The sea-level afterburning thrust of the engine is only 8,530kgf. However, the turbofan 9A, which has been partially improved by the turbofan 10 technology, has this data above 10,000kgf. Looking at it this way, the improved F14IC model can probably be equivalent to the level of the US militarys F14D? Obviously, the Persian Air Force has always been very concerned about the improvement of the Tomcats on the US military side. So to speak. He Ming hesitated for a moment and then nodded: Although the sea-level thrust of the turbofan 9A is smaller than that of the F110GE400 replaced by the F14D, the overall improvement ideas and the performance orientation of the improved model are similar. Speaking of this, he suddenly remembered an interesting thing: Speaking of which, F110GE400 and Turbofan 9A, the total pressure ratio of these two engines happens to be 30.7, which is 50% higher than the TF30 engine. Of course, as a price, the high-speed performance and maximum flight speed of the F14 after the engine change, whether our F14IC or the US militarys F14D, have actually been reduced. "oh?" ??The Persian general who had been holding a telescope was also attracted by this topic about engines: Did you consider benchmarking against the F110 when designing? In fact, the reason why they decided to hand over the F14 to China for modification was partly because the size, weight and performance of the 1493 radar could perfectly replace the AWG9, and the other half was because they discovered the turbofan when visiting the Haofei Group. The performance of the 9A engine is quite good. Thats not the case. He Ming shook his head: This is a complete coincidence. In fact, the turbofan 9A is a by-product created by one of our chief designers for technical verification. It is impossible to specifically focus on benchmarking other models in terms of total pressure ratio. ?This answer was originally just that he told the truth without any deep meaning, but the effect was surprisingly good. Wait, you mean, the by-product... already has such good performance? Now that No. 1401 has flown far away, it is impossible to see it even with a telescope, so the Persian general simply put it aside and turned around and asked with a shocked face. He Mingxin on the opposite side said that it was because you didnt know what kind of hard work Mr. Chang was preparing to do on the Turbofan 10, but the contents of the third-generation (actually 3.75-generation) turbofan engine were all confidential, so he had to change to a more traditional one. Answer: Although it is a by-product, the technologies used on it are the latest cutting-edge technologies from the 1990s and even into the next century. It can be said that although the turbofan 9A was born out of the British Spey, it has no direct relationship with Spey now..." (End of this chapter) Chapter 599 Panda or tomcat Chapter 599 Panda or Tomcat The entire test flight process lasted about half an hour. ?Under the control of Fu Guoxiang, the No. 1401 aircraft reached a minimum sweep angle of 20 and the rear wheel touched the ground lightly, bringing a perfect end to this mission. Since U.S.-made aircraft are rarely equipped with speed parachutes (unless they plan to be deployed within the Arctic Circle for a long time), the taxiing distance of the aircraft after landing is slightly longer than that of the Chinese aircraft. There was a burst of applause and cheers in the command hall. Very good, very good. ??The Persian general picked up the telescope and stared in the direction of the runway again and repeated his words of praise twice in a row. He was obviously very satisfied with the performance of the F14IC during this test flight. Your Excellency, General, we have to go down. The data recorded by the flight computer needs to be archived as soon as possible. Of course, when the aircraft is officially delivered later, all the test data will be copied to you. ?He Ming directly handed the telescope in his hand to the assistant next to him and said to the leader of the Persian delegation not far away: In addition, I also arranged a dinner to celebrate the breakthrough progress of the cooperation project between our two countries. After being promoted from deputy chief engineer to deputy general manager of the group, he also had to learn to deal with some administrative and communication matters. Although he is still far from being proficient in this, compared to his dull state in the past, It is already much stronger. ?The first flight was successfully completed, and after hearing that there was a dinner reception, a group of Persians followed He Ming downstairs happily. ??This delegation came with the first batch of F14s. They have been in the factory for two months and are really exhausted. ? ? Shiite religious law is not very stringent in terms of doctrinal norms. Banquets and the like do not matter at all. Even fermented or distilled food and beverages are not a big problem as long as they are not drunk in public. At the same time, the two pilots who had just climbed down from Plane 1401 had just squeezed out of the crowd that gathered to celebrate and signed their flight records. It was different from the usual test flight process. Today they had a special task to complete. Slightly further away, an Air Force colonel has been waiting for some time. ??Wang Kang, the brigade commander of the Dingxin Base Aviation Brigade, is also Zhao Mengtians superior, but this is the first time he met Fu Guoxiang. After completing the necessary physical examination after landing, the two of them followed each other into a Mitsubishi SUV and arrived at a conference room in the administrative building without even having time to change into flight jackets. ?Several other people in the room stood up one after another. Comrade Fu Guoxiang and Comrade Zhao Mengtian, first of all, I would like to congratulate you on your triumphant return. After the colonel officer finished speaking, he led the rest of the people and saluted the two of them: The reason why I am calling you here in such a hurry is because the organization hopes to understand as soon as possible how you feel about all aspects of your test flight of the F14 fighter jet. ? ?The aircraft assigned to China by Persia for imaginary enemy missions are still being dismantled in the 70# factory. Therefore, Fu Guoxiang and Zhao Mengtian are currently the only pilots in the entire Air Force who have flown F14. ?Although the upgraded F14IC is different from the F14A and F14D, the basic flight characteristics will not change much. The two pilots looked at each other, and finally the former with higher rank spoke: In terms of flight performance, the F14 feels lighter than I imagined. After a moment''s pause, he continued to explain: What Im saying is that even excluding the engine upgrades weve made, this aircraft is easier to maneuver than it looks. "Variable swept wings can indeed allow the aircraft to have several completely different performance characteristics, and they can be switched according to different environments. In particular, the wing sweep angle of the F14 during flight does not require additional operations on my part, but is closely related to the flight. The control computer is linked and adjusts the position on its own as I operate the throttle lever. "In short, although this is the first test flight, I have not yet touched the limits of this aircraft, but its geometric maneuverability must be very powerful. In the early stages of combat within visual range, within about the first four to five flight movements It will be a very difficult opponent. ?While Fu Guoxiang was describing, a lieutenant beside Wang Kang was also tapping the keyboard quickly, apparently recording what he said. The first four or five ?Wang Kang quickly captured the key point of his words: In other words, you dont think this mobility is sustainable. Thats right. Fu Guoxiang nodded: "Although the small sweep angle can provide a good instantaneous turning ability, the resistance is also very obvious. In addition, the weight of the aircraft is still too large, and the thrust of the engine is not enough. After a few twists and turns, there will be a problem of insufficient energy. "As far as the two third-generation aircraft I have flown have been concerned, as long as the J-11 is not caught off guard during the first encounter, it should not be difficult to rely on its advantages in energy and large off-axis angle of weapons. To win, for the same reason, the J-11 can accumulate enough energy advantages in the process of firing and avoiding medium-range missiles after being equipped with a 1493 self-use radar with similar performance to this aircraft. " "However, if it is a second-generation aircraft, even the best among the second-generation aircraft like the J-8C, it still needs some targeted skills to win, or simply use the advantage of speed to fight and retreat quickly. Of course, the J-8C The 8C does not have the absolute speed advantage of exceeding Mach 2.8 or even Mach 3 like the MiG 31 or MiG 25, so it still needs to be dealt with carefully. "Oh, yes, although the F14''s wing sweep angle does not require manual adjustment by the pilot, the process of wing change is relatively long, only about 6-7 per second, and during this process, the aircraft will be in an extremely difficult to control position. If we can seize this window, we can take advantage of it. In fact, the last comment will be given simply because Fu Guoxiang has not flown other variable-sweep wing aircraft. The wingspan retracting speed of 7 per second is actually far ahead among similar aircraft. He recalled it again to make sure that he had not missed anything, and then concluded: In general, I think the F14 is limited by its basic design, and its potential is not as good as those real third-generation fighters that came later. However, considering the actual situation of our countrys air force, we still need to be very vigilant in facing it. What Fu Guoxiang said is already very complete, and there is not much that Zhao Mengtian needs to add: "The performance of the 1493 radar is very good. I tried turning it on in the air and found that the warm-up speed and refresh frequency are very fast, which is much better than the N001 on the Su-27SK. During the test flight, the radar even captured a 240 kilometers away The medium-sized air target should be a passenger plane that happened to fly by." In addition, I believe that with the improvement of radar and fire control computer performance, a separate pilot is no longer actually needed to operate the radar and guide missile firing during beyond-visual-range air combat. However, if it is a ground attack mission, then considering that the guidance methods of air-to-surface weapons are generally more complex, and many require full human-in-the-loop control, the second pilot is very important. So I suggest that we carefully consider the equipment quantity of the two-seat J-11, that is, the Su-27, unless we plan to develop a multi-purpose fighter with ground attack capabilities based on it. The conversation between several people continued until the evening of that day. ?At this time in 1998, the F14 could still be regarded as the main model in the U.S. Navys carrier-based aircraft force. Hence, Wang Kangs questions were also very detailed. ?And, as the topic continued to unfold, it later involved not only the performance of this F14, but also some pilot training and problems in the formation process of the Blue Army unit. Seriously, Comrade Guoxiang, are you interested in being transferred to our Blue Army Aviation Brigade? ?Before leaving, Wang Kang patted Fu Guoxiang on the shoulder and joked. ?Of course he knew that the other party would not agree, but he just said it casually. Sure enough, Fu Guoxiang did not pick up the issue, but changed the topic somewhat abruptly; We have exchanged F14s for our own use, and the first of them should be rolling off the production line soon. By then, Brigadier Wang, your troops will be more like the genuine US military. Zhao Mengtian, who was following the two of them, had been stroking his chin and thinking for a long time. At this time, he suddenly raised his head and said: Speaking of which, the F14 fighter jet of the US military is called Tomcat, so now the F14 that has been improved by our country...can it be called Panda? The news that F14IC completed its first flight naturally quickly reached Chang Haonans ears. But for him, this incident can only be regarded as an episode in his busy work. ??If he had to say that it had something to do with him, it might be that the new engine, Turbofan 9A, was an improved model that he "accidentally" made. I feel ashamed that I have only made some small contributions. ?Originally, he thought that after the component-level testing work at hand was completed, he would take time to take a look at Field 112 to see what the "alive" F14 looked like. But before he could actually make the trip, at the end of May, exciting news came. ?Eurocopters NH90 prototype finally encountered a problem. (End of this chapter) Chapter 600 Bearing, broken Chapter 600 Bearing, broken Not long ago, Marseille, France. ?Under Pierres anxious supervision and the pressure of there may be layoffs if the project is gone, the work efficiency of the entire NH90 project team has improved a lot. ?According to the technical information provided by Huaxia, the transmission system has been manufactured and installed on the No. 02 prototype, which is relatively new and in good condition. The processes for conducting aviation project research and development are basically the same all over the world. The next step is definitely to prepare for the test flight. Actually, up to this point, Pierre was still relatively optimistic. Its not that he has any extraordinary trust in the Chinese people, but that another project team, his colleagues, have already used the transmission system design solution provided by Huaxia in AS365N2, which is the second-generation Dolphin improved model. On top of the helicopter. After testing, it was found that the effect was very good, and the problem of the old model being unable to increase the take-off load by further increasing the engine power and the hovering time being too short was finally solved. Of course, the Dolphin project was negotiated directly with the Torch Group, not the Ice Flying Group, so it was naturally not included in the NH90 cooperation. ?However, in Pierres view, since they are all solutions provided by the same supplier and have basically the same technical route, the effects should be similar. So, on the morning when the ground test was over and preparations were made for the test flight, he felt a rare sense of joy. In the past nearly two years, Pierre''s main energy has not been able to focus on technology at all. ??The quarrels among the four partners had already exhausted him mentally and physically, and the unsatisfactory test flights of the two prototypes only exacerbated the problem. As we all know, once something goes wrong in a so-called "cooperation project", it will inevitably involve blame-shifting. ?As long as the incident has entered this stage, it is completely foolish to think about discussing technical issues calmly. In comparison, it is more worry-free to be each others suppliers... ?While Pierre was thinking this, he turned his head and looked at the few Chinese engineers standing not far away from him. He felt that his mood was unprecedentedly smooth. Dr. Pierre, the aviation department reports that all preparations for takeoff have been completed. ??The voice on the radio interrupted his thoughts, causing him to refocus his attention on the silver-gray helicopter on the tarmac outside the window. ?Although it seems that there is no change at first glance, compared with the other No. 01 prototype a little further away, its essence is completely different. ??If you are careful enough, you will find that the engine nacelle of this No. 02 aircraft extends wider to both sides, and the springboard door at the tail part is obviously newly replaced, shining with the color of the metal itself. Have you specifically checked the condition of the tailgate springboard? ??Although the pre-takeoff checklist had already been sent to the ground crew technicians, and they only needed to follow the items listed above, Pierre still asked the assistant on the radio side specifically. It has been checked before installation, before leaving the factory and just now. There are no problems with the sealing and structural strength. The assistant replied firmly: Although the counterweight of the entire aircraft will be affected to some extent, our fly-by-wire flight control has an automatic trimming function and will not be affected. ?In the era of hydraulic flight control, or earlier than that, if a pilot wanted to control an unbalanced aircraft, he often needed extremely high flying skills and took huge risks. So at that time, if the aircraft carried bombs under the wings, it was generally impossible to drop just one. But for computer-controlled fly-by-wire flight control, these are not problems. ?The pilot only needs to ensure that the control stick is centered, and the flight control system will automatically adjust the wing surface to achieve level flight. The same principle applies to helicopters. Since this No. 02 prototype is a modified old aircraft, it is naturally impossible to replace all the structural parts of the aircraft, so Pierre thought of replacing the rear tailgate with a lithium-aluminum alloy material first to test the impact on flight performance. What impact will it have. The Dutch were naturally opposed to changing the material of the fuselage at first, but Pierre was very tough on this matter, and through Le Maire''s relationship, he laid out the carbon fiber of dozens of Dutch companies. The contract for the aircraft was transferred to Airbus, and through hard and soft measures, the matter was finally finalized. Get ready to take off. ?Pierre took a deep breath, inadvertently clenched his hands into fists, and propped himself on a table in front of the window, staring at the helicopter outside and the busy crowd behind the guard. As a burst of flames erupted from the exhaust of the APU, the rotor of Unit 02 slowly began to rotate. Because the rotor and front fuselage have not been replaced yet, the noise is still quite obvious after starting. Even more than a hundred meters away, you can hear a rhythmic thumping sound, which makes people feel slightly uncomfortable. Originally, everyone was involved in helicopters. After so many years, our ears have long been accustomed to it. ?But as soon as he thought of the Chinese Dolphin he saw in Singapore last year, Pierre couldn''t help but laugh again. Wang Xibo, who was next to him, looked at the constipated expression on his face and thought that the old comrade in his fifties couldn''t stand the medium-frequency pulse sound, so he leaned into the other person''s ear and said something very considerate: Dont worry, Mr. Pierre, my colleagues are already working overtime to develop the rotor and fuselage. It wont be long before they can be used on the newly manufactured No. 03 prototype. Speaking of this, Wang Xibo glanced in another direction involuntarily. ?That is the production workshop of Eurocopter. ? Pierre had taken him in twice before to guide his work. ?It must be said that the production environment and equipment level completely overwhelm Bingfei Group, which makes it hard not to be jealous. ??Although his intentions were good, Pierre''s face turned ugly because he was distressed at the thought that his helicopter design level was not as good as China''s. His words did not have a consoling effect, but the last hit made it stronger. OPierre''s lips moved. He could also guess that the other party had some misunderstanding, but he really didn''t know what to say. In the end, I had to respond with silence. It''s just that his face seems to be darker. Wang Xibo found that his persuasion had no effect and did not continue. He just took a sound-isolating earphone from the side and handed it to Pierre. The latter took a deep breath. ?But I put it on anyway. ?While the two of them were playing a small theater in their hearts, the helicopter on the tarmac had accumulated enough power, roared up from the ground, and flew into the air. ?This No. 02 prototype has flown for hundreds of hours, so there is no need to repeat all the subjects. Hence, after performing a few simple movements such as flying forward, backward, left, and right, a deeper test soon began. For a time, the only sounds in the radio channel of ground-to-air communications were the commander issuing flight instructions and the pilot responding to them. In the next nearly half an hour, the pilot did not specifically report the condition of the transmission system. ?Pierre''s mood gradually became relieved as the helicopter''s increasingly large-scale flight movements became larger and larger. Just like for a car, the best gearbox is one that makes people unable to feel that the gearbox is working. The highest level of the helicopter transmission system is that the pilot cannot detect its existence. So, when he saw that the helicopter had entered a hovering attitude and was preparing to conduct the last test of the day, the test of different outputs of the bilateral engines, Pierre had even thought about what he would drink to celebrate tonight. However, it is proven that champagne cannot be opened in advance. The pilot reported that the temperature of the reducer lubricating oil was abnormal. ??The voice on the radio suddenly became urgent, causing Pierre''s heart, which had already entered a relaxed state, to shrink suddenly. He almost stumbled to the front of the command podium and asked the pilot directly about the specific situation. The report received is that the problem does not appear to be serious, because the abnormal point is the side with more power in the current test, and it is entirely possible that it is a "normal abnormal situation" - Because the input power of the engines on both sides of the current test is unbalanced, it is originally an emergency state. The expected abnormal situations that occurred in this state are actually considered normal for test flights. Just when Pierre was hesitating, Wang Xibo, who had just learned the whole story from the interpreter, came over and put his hand on the Pierre''s shoulder: Dr. Pierre, I recommend that this project be discontinued immediately. According to our design, even if the output power of one side is 0 and the other side is outputting at full emergency power, there should be no problem with the lubricating oil. OPierre is a person who mainly listens to advice. Since the supplier of the transmission system had advised abort, he just went down the **** and asked the pilot to prepare for landing. Lets go over and check it out and see what the problem is. ?Abnormal oil temperature is just like a human fever, it is just a "phenomenon" There may be many reasons for the phenomenon. ?Wang Xibo was even more anxious than Pierre at this time. The NH90 project is one of Chinas two model projects for going global in the helicopter field. ??If something goes wrong on our side, it will have an immeasurable negative impact on the reputation of Bingfei Group and even China Aviation Industry. ?This made Wang Xibo''s mind a little confused for a while. ?However, on the surface, he still maintained his calm. ??The atmosphere in the entire flight control center also changed from the light and relaxed atmosphere just now, to becoming depressing. By the time the group of people came to the tarmac, the helicopter had completed all landing procedures, and the ground crew had set up a maintenance frame and were ready to climb up and dismantle the entire engine compartment. Because the engine has just stopped, it will take a while for this process to be serious. Upon seeing this, Wang Xibo and Pierre had no choice but to learn the details from the three pilots. Both of them were very worried at this time. The former is not a senior expert in transmission. If the problem is too complex, it is likely that the cause of the fault will not be determined until after communicating with the country. For the latter, if this cooperation with China fails again, the NH90 project will really be ruined. ?However, the two people''s fear did not last long. ?The ground crew had little trouble identifying the source of the problem. Dr. Pierre. ?His deputy stood on the maintenance frame and shouted: The shafting support bearing of this main reducer is broken! (End of this chapter) Chapter 601 NSK Group, the incident came to light Chapter 601 NSK Group, the incident came to light ?When he just heard about the cause of the failure, Wang Xibos first reaction was... Dont quite believe it. From the perspective of a helicopter designer, even if he is not a designer specifically responsible for the transmission system, this is really outrageous. Because the shaft system support bearing can be said to be the most basic part of the entire transmission system of the helicopter, its status is similar to the main bearing of the turbofan engine that Chang Haonan has studied before. ?It was broken down less than 40 minutes after takeoff? ?This problem is so big that it doesnt even sound true. ??For this cooperation project, Bingfei Group has adopted almost the most stringent standards, and all design content must be blindly checked at least twice by different people. ?Even if there are some small omissions, it is impossible for such a big mistake to occur. It is impossible that when Eurocopter Group purchased bearings, it just happened to buy defective products, right? No way? Who would believe such a big company? Furthermore, even if they know that they are going to be used in harsh environments like helicopter main reducers and that life and death are at stake, the bearing supplier wouldnt be so bold as to issue fake products, right? ?Therefore, after a round of analysis, Wang Xibo felt that it was possible that the opponent''s ground crew had misunderstood. After all, the design of this transmission system is quite different from the original plan. With such doubts, he followed Pierre and climbed to the halfway height of the maintenance frame. Then Holy shit, is this really true? ?The other party''s ground crew skills are indeed in place. In just a few seconds, the outermost shaft system support bearing has been removed. ?And on its side surface, there is really a ferocious axial crack running across it. ?Wang Xibo had never seen this scene before, and he was so shocked that he directly spoke Chinese. You must know that the NH90 is a 10-ton helicopter with a rotor diameter of 16.3 meters. The bearing set for the main reducer is as big as a plate and several centimeters thick. The material should also be G13Cr4Mo4Ni4V or a corresponding higher grade bearing steel. ??Although the main optimization direction of this type of material should be hardness rather than strength, it would be too outrageous to directly tear off the surface reinforcement layer... ?Pierre next to him also looked shocked. After a while, he looked at Wang Xibo next to him with doubtful eyes. ?Although he didnt say anything, the meaning was obvious ?Do you have to explain this? Even though the latter was also stunned, he still managed to calm down and said as if he had everything under control: "Mr. Pierre, the design of this transmission system is not just taken and installed directly on the helicopter. You have completely verified it before. So I think the design itself has flaws that neither you nor I have discovered. Its probably not very likely. As for the specific cause of the problem, I will communicate with the country immediately and resolve it as soon as possible. This statement is quite high in emotional intelligence. As a provider of the entire transmission system solution, we will definitely have to take the blame temporarily until the problem is fully understood. ?However, Wang Xibo pulled Pierre onto the same chariot as himself with just two words - The technical solution is indeed ours, but you have checked and approved it before. Following this, he made a statement that he would immediately start troubleshooting the problem. In short, all possible places where the other party may cause trouble are blocked in advance. In fact, by this time, Pierre had also passed the initial stage of fear. Smart IQ has regained the high ground. He also realized that Wang Xibos logic was sound. In that plan, the only thing that made it feel a bit risky was that at the beginning, less than 5% of the design margin was reserved. It is almost equivalent to leaving no room for maneuver in the subsequent calculation process. But no matter how much was left, the final calculation and verification process was passed smoothly. ?Then you can only say that the design level is high, but not that the margin is too small. Secondly, logically speaking, when implemented in the production and manufacturing process, standard parts such as bearings should have some redundancy compared with their nominal performance. It shouldnt have deteriorated like this so quickly. Of course, there is a more important point. ??If it is really a design problem, then of course Bingfei Group must bear the main responsibility, but as the project leader, he is certainly not free from the problem. After this idea was formed, Pierre immediately ordered the ground crew to drag the aircraft back to the assembly workshop, and restricted the access of people in the nearby area on the grounds that confidentiality was required during the troubleshooting process. In any case, we have to wait until the real cause of the failure is determined before taking a long-term approach. ?In this way, a few hours later, the news that the NH90 prototype malfunctioned and needed help from the Ice Flying Group to investigate in China was reported to Chang Haonan. ??It wasnt even a phone call, but Liu Hongbo ran directly from the capital to Shengjing with the design plan and described what happened. "Uh...Mr. Chang, why do I feel like you...are not surprised at all?" Liu Hongbo was actually very nervous at this time. ?The main reason is that he is in China after all, and there is no online remote diagnosis technology these days. It is not easy to attribute it based on verbal descriptions and a few blurry photos. He was even ready to ask for leave from Beijing Hang University and fly to France to see the situation. ??This time I came to Shengjing, it was also a time to ask for some tips before leaving. ?However, Chang Haonan across the desk seemed to have no nervousness at all. "Ah...no, I was so shocked that I couldn''t speak for a while." ?Chang Haonan tried his best to pretend to be nervous, but the true emotion in his heart at this time was actually ecstasy, so his face showed an unbearable expression. "oh" ??Liu Hongbo looked at the way his junior brother and bosss facial muscles kept twitching. Although it seemed unlikely, it was clearly a sign that he wanted to laugh but was holding it back... Forget it, dont mention this. Chang Haonan also felt that if he performed again, he might be in trouble, so he quickly changed the topic to the technical level: "If it is true, as you said, that before the plan was issued, two rounds of blind reviews were conducted, and after arriving there, Eurocopter also confirmed it, then it is basically impossible that there is a problem with the design, otherwise it may cause The cracking of the main reducer bearing group is not even a design flaw at the level of wear, it should have been seen long ago. ?The categorical judgment even made Liu Hongbo on the opposite side feel a little moved for no reason. What''s this? This is trust! Chang always trusts him more than he trusts himself! ?Of course, this is purely his self-strategy. ?Chang Haonan set up the situation himself, and of course he knew what was going on. The reason why he didnt tell Liu Hongbo the whole incident was because he didnt trust him Of course it does not refer to technical level, but to performance level. Thats right, Chang Haonans plan also required Liu Hongbo to go on a business trip to France. Its not just about making sure nothing goes wrong. From the perspective of R&D specifications, after the fault is determined, Liu Hongbo, the person in charge of the design, also needs to sign. Mr. Chang, if its not a design problem, could it be a production problem? Liu Hongbo looked unconvinced: According to my observations during this period, Eurocopters manufacturing quality is quite good. For example, our imported AS565 has many design flaws, but after taking it apart, the workmanship is absolutely smooth. , Its higher than our current level. Eurocopter may not have a problem, but what about the suppliers? They may not have a problem. ?Chang Haonan began to guide possibilities in the preset direction. But Liu Hongbo still feels its a bit outrageous: Its impossible that Eurocopter just bought defective products when purchasing bearings, right? ?This question made Chang Haonan not know how to answer it for a while. If you are too sure, it seems like you are jumping to the top. So he simply said: "Anyway, this possibility cannot be ruled out. Before you fly to France, talk to Wang Xibo first and ask them to use these few days to check the performance of all the components of the main reducer. After you go there, Take a look at the results and report back to me. Chang Haonan''s words have reached this point, so Liu Hongbo naturally chooses to follow them. ?Soon, his troubleshooting suggestions were sent to Eurocopter. At the beginning, Pierre was quite disapproving. Its impossible for our marketing department to just buy defective products when purchasing bearings, right? He said to Wang Xibo: Besides, before placing an order for purchase, according to regulations, samples must be tested for performance. It is not like going to the supermarket and buying them casually. In fact, as mentioned before, Wang Xibo himself doesnt really believe it. But this was an instruction from the country after all, so he had no choice but to ask Pierre to urge the testing department to do it. Quan is treated as a dead horse and a living horse as a doctor. However, within a few days, the report of the complete destructive test conducted by the quality inspection office was placed in front of the two people. The results showed that the structural strength, surface hardness and other key properties of the batch-produced bearings they purchased were about 10%-12% lower than their nominal data. The report also specifically mentioned that the samples sent for inspection this time are completely different from the samples sent for inspection before the purchase contract was issued, and cannot be regarded as the same model at all. ?Looking at this result, Wang Xibo and Pierre felt numb immediately. NSK The latter slapped the report heavily with one hand: You are really brave enough (End of this chapter) Chapter 602 Teach the Japanese a profound lesson! Chapter 602 teaches the Japanese a profound lesson! In principle, the testing center is only responsible for giving conclusions and is not responsible for analysis. But the meaning in the test report is actually very clear. The samples taken directly from the bulk supply this time are completely different from the previous ones. Basically, it is equivalent to saying that after the supplier passes the first test and gets the contract, it starts to provide unqualified products in batches. ??Moreover, the design of this substandard product is quite exquisite. ??If it weren''t for the small margin of the NH90''s transmission system, there would be no problems in a short time. ? Even if a problem is discovered later, it will basically only have a slight impact on the lifespan, which can easily be regarded as a normal deviation between the calculated results and the actual situation. Hardly anyone would think about parts being substandard. Dr. Pierre, please calm down first. Wang Xibo first briefly comforted Pierre who was about to explode, then looked at the report in his hand and asked with a complicated expression: You...wont you do sampling testing on every batch of samples? Dr. Wang, what about this...its a long story... ?Pierre, who sat back in the chair, shook his head, and then sighed softly. Immediately afterwards, Wang Xibo was explained to Wang Xibo the reason for this situation. Eurocopter Group will of course conduct random tests on its products, but after all, destructive testing is required, and the cost of this bearing is quite high, so the frequency is actually very low. In terms of operation, as long as you bribe an insider at the middle level or even at the grassroots level, you can make preparations in advance and deliver a batch of qualified products in a targeted manner. ?This system certainly has a lot of loopholes, but there hasnt been any big trouble in so many years. The whole world, at least in the high-end industry, has been maintained like this. Because every component in the industry chain should know that maintaining this seemingly loophole-filled quality system is the best outcome for everyone. The cost of increasing the sampling rate, regardless of economic, labor or time costs, is simply too outrageous and is a complete waste of resources. It is better to maintain trust between each other, so that everyone can earn more. Originally, of course there have been people who have tampered with the quality before, but they would not take advantage of this loophole. The most we can do is bribe a third-party testing agency to issue a false report. After all, very few parties can conduct testing completely on their own like us. Having said this, Pierre closed his eyes in pain and tapped the report on the table with both hands: But now, the first guy to completely break the rules has appeared. Once trust is destroyed, it is almost impossible to rebuild it. This set of things will soon become unusable... ?Thinking from a rational perspective, Wang Xibo can understand what Pierre said. NSK''s operation is equivalent to flipping the table on which everyone eats, and will greatly increase the operating costs of every link in the entire market. ?However, considering that Hua Xia has never been to this table, it is difficult for him to have any empathetic thoughts. Originally, our domestic experts have also been sent to investigate this matter, and they should arrive tomorrow morning. But it seems that besides signing and drawing a conclusion, he does not need to do anything. ?Wang Xibo looked at the appraisal report with a somewhat helpless expression. After a slight pause, he raised his head again and looked at Pierre behind the desk: What are you going to do about the bearings? Although we discovered it in time and did not cause too serious losses, the test flight work will definitely have to be suspended for a period of time until the next reliable supplier is found. ?Hearing this question, Pierre also sat up straight again: "What to do...it''s natural to file a claim. This matter will be handled by the legal department, so you and I don''t need to worry about it." But I still need to write a few reports to explain the reasons for the problem to several departments of defense. This matter has nothing to do with Bingfei or Eurocopter, so the follow-up processing is actually not complicated. On the contrary, to some extent, it proves that the design produced by Bingfei Group is indeed exquisite. Suffice it without wasting it. ??For Pierre, he is currently exhausted mentally and physically by the NH90 project itself. Therefore, although he hates NSK''s fraud very much, after considering the overall situation, he decided to focus on technology. On the one hand, delivering the aircraft as quickly as possible is the top priority right now, and entangled with NSK will not help this process. On the other hand, as Pierre said before, the bigger this incident gets, the more damage it will do to the past set of market rules based on mutual trust. So, if nothing unexpected happens, there is a high probability that this matter will just go away. ??At most, the subsequent claims and court confrontation may attract some media attention, and the NSK Group will be included in the supplier blacklist. That afternoon, it was evening on the Chinese side. Chang Haonan, who was conducting a summary analysis of the components and test results of Turbofan 10, received a notification from Bingfei Group on the subsequent development of this matter. He was so angry that he almost got into a fight. ?Chang Haonan originally prepared a set of combos to target the entire Japanese manufacturing industry. ? All things considered, he never expected that Eurocopter would tend to keep a low profile on this matter. ?In this way, although NSK will definitely still suffer a huge blow, if the operations in recent months only involve a certain company, it would be a real loss. ?Thinking of this, he picked up the red telephone receiver on his desk and prepared to call Lan Xinzhi from the Equipment Industry Department. ??But when his finger was placed on the number button, the number was not dialed. After hesitating for a moment, he finally put the receiver back. Chang Haonan took a long breath, calmed down, and whispered: Its better to wait and see ??If Eurocop decides to stop here, it wont make much difference whether he hits his combos earlier or later. But if you wait a little longer, there might be a chance. Game is a bit like gambling to some extent. You cannot control all external factors. But if you can always make the optimal choice rationally, then with a large sample size, you will definitely win in the end. In the end, he really had to wait. When Liu Hongbo, who was tired from traveling all the way, landed in Marseille and finally arrived at the headquarters of Eurocopter, what was in front of him was an investigation report that had already been written. We have no responsibility at all in this matter, and Eurocopters legal department will handle any subsequent matters, so... Professor Liu, all you need to do is sign here. In Pierre''s office, Wang Xibo pointed to the signature column at the end of the report with some helplessness and said to Liu Hongbo. Originally, all three people should be present at this time. But Pierre had just been called out by a phone call. Did they really buy fake bearings? After reading the contents of the report, the latter was so shocked that his eyes almost bulged out. ??Yesterday when Bingfei reported to Chang Haonan, Liu Hongbo was already on the way to the airport, so he was almost the last one among the relevant personnel to learn the truth of the matter. It sounds outrageous, but...its really that simple. Wang Xibo replied: Im also surprised that a Japanese company can commit fraud so brazenly, and in such a crude way Before he could finish speaking, there was a loud bang at the office door. ?Pierre almost kicked open the door and walked in angrily, mumbling something. ?During this period, Wang Xibo also learned some French under the influence, but the other party spoke too fast and could not hear the specific content clearly. ?However, judging from some keywords, it should be some content that is not easy to pass the review. Pierre, what happened? ?Wang Xibo tried to calm Pierre down. Just now, people from the public relations and legal departments told me that NSK Group rejected our claim for compensation! ?Pierre sat down on the office chair. Originally a white man, his face was almost as dark as Tyrell. He was obviously very angry: They said we didnt have enough evidence to prove that their group sent us products with substandard performance. "ah?" Liu Hongbo, who had learned the whole story from the report, was immediately shocked: No, the test report has already been slapped on your face, how can you still be so arrogant? Their legal department said that the difference between the sample and the final product may also be caused by our internal people switching the package midway, and we need to provide stronger evidence! OPierre was also laughed out of anger when he said this: I originally wanted to handle this matter in a low-key manner, but now it seems that I still have to teach them a profound lesson! (End of this chapter) Chapter 603 This is no longer an ordinary fraud, it must be dealt a heavy blow! Chapter 603: This is no longer an ordinary fraud, it must be dealt a heavy blow! ??Although Wang Xibo and Liu Hongbo are not aware of Chang Haonan''s plan, they know that a well-known Japanese company is about to suffer a major blow in Europe, which is definitely a major benefit for China. After all, even in developed countries, ordinary people dont have much money in their hands. Hence, Europes demand for cost-effective industrial manufactured products is still very strong. With fewer competitors, there is more possibility of opening up the market. Especially Liu Hongbo, who has been working with Chang Haonan for more than half a year. He was keenly aware that there might be room for maneuver behind this. Therefore, the two of them contacted the Chinese Consulate as quickly as possible after returning, and reported the 180 reversal of Pierre''s attitude to the country. ?At this time, it was already late at night in China five time zones away. ?However, after receiving the call from Bingfei Group, Chang Haonan was no longer sleepy instantly. In the current situation, even Eurocopter was originally not prepared to make a big fuss. If NSK gave in and then paid a sum of money, it would be beyond his reach in China. That is to say, throw out the evidence collected previously and make some small moves in the domestic market. Judging from the Ministry of Foreign Affairs level of maintaining spokespersons in the country, the real impact may not be too great. After all, brand image is rooted in the hearts of the public. Just relying on individual people to run around and shout out cannot solve any problem. At most, he relies on his influence to restrict the supplier status of Japanese companies in some national projects. Furthermore, due to the constraints of the WTO, it cannot be too obvious. ?However, now, NSK is not ready to give in, but wants to fight hard with the old European local snake? ?This is Wu Dalang drinking giraffe milk - jumping up and down... ?Thinking of this, Chang Haonan immediately picked up the phone again and contacted Lan Xinzhi. Given the former''s status, the phone call can naturally be made directly to the latter''s home. Director Lan, I am Chang Haonan. ?It is indeed a bit inhumane to call the couple in the middle of the night, but the matter is urgent and there is no need to worry about that much. Lan Xinzhi, who was still a little confused at first, reacted immediately when he heard Chang Haonan''s voice, and then looked at the watch on the desk. Its almost midnight. His tone suddenly became a little nervous: Mr. Chang, is there any trouble that needs to be solved? ?At the same time, he turned around and gestured to his wife on the bed behind him to prepare a coat for him. Obviously, in Lan Xinzhi''s opinion, it is definitely a big deal to get the other party to call him at this time. Its not a problem, its our opportunity. Chang Haonan replied: NSK Group and Eurocopter may have a conflict in terms of public opinion and law. During this period, please pay attention to business news in Europe, especially France, and be ready to cooperate with them at any time. These days, there are no communication methods such as trending short videos, and even search engines are very immature. If you really want to collect a certain aspect of information in a short time, you can only go back to traditional media. . Whether it is watching TV news or foreign language newspapers, specialized manpower is needed. He himself wants to break it into eight pieces and use it, so he can only let the Equipment Industry Department take charge. The reason why Liu Hongbo was not approached was because although he was in France, he was still Chinese and a relatively sensitive technician. It was really inconvenient for him to chase people from the Eurocopter Group and ask questions all day long. ??Other than himself, the person who knew the most about Chang Haonan''s layout was probably Lan Xinzhi, so the latter was just stunned for a moment before he roughly figured out what was going on and what exactly he needed to do. "Okay, I''ll make the arrangements. If anything happens, I''ll notify you as soon as possible." ?Although wired telephones are inherently more confidential, the phone at home is not a dedicated line after all, and it is impossible to talk about everything on it in a big way. Therefore, after arranging the most important things, the two immediately ended the call. Its so late, do you still want to go out? Lan Xinzhis wife came from behind holding clothes, her tone slightly aggrieved and dissatisfied: Work also requires time... After you got promoted, you feel even busier than before... ?Having said that, my hands did not stop helping me change clothes. "The higher the position, the heavier the burden on the shoulders..." Lan Xinzhi knew he was in the wrong, so he had no choice but to comfort his wife. "I''m not saying that. You are now a director. The only ones who can instruct you like this are the directors of your Science and Technology Commission. The voices I heard on the phone just now are not very different. Sometimes you can''t talk too well at work. Already This is Even as Lan Xinzhi finished speaking, he still felt that Chang Haonans affairs could not be revealed too much, so he gave a vague explanation: "The situation is quite special. The Equipment Industry Department can do without me as director, but it cannot do without this person." Furthermore, I was able to skip the process of deputy position in the business department and be directly transferred from the secretary position to the director, thanks to this person..." Hearing this, his wife, who was tying his tie, opened her eyes: How come Ive never heard of you talking about it before? "If you have such a noble person...the relationship must be maintained diligently..." Obviously, she has regarded Chang Haonan on the other side of the phone as some kind of "mysterious figure who is not in the Science and Technology Commission system but has a rich background and can speak well." ?? And this imagination is actually very close to the truth by mistake. Chang Haonan does have a background now, but its just not the kind of background he imagined... Its still a little inconvenient to talk about things in the unit... After a little prevarication, Lan Xinzhi picked up the briefcase at the door and went out. ?On the other side, Pierre also quickly took action. He had said before that he would hand this matter over to the Ministry of Justice for legal proceedings. But legal procedures, in many cases, do not mean going to court. Out-of-court settlements also count. ?However, because of the stubborn reaction from NSK, this road to reconciliation has been blocked. Unable to swallow his breath, Pierre quickly submitted prosecution documents and found media outlets he was familiar with to begin reporting the incident on a large scale. For a time, the news that "NSK Group had committed fraud during product testing" was widely reported in the newspapers, and even the officials of several countries participating in the NH90 project have made statements. In fact, NSK Groups choice of this abstract response method is not because there is something wrong with the brain, but because there is really no other way. Members of the family know their own affairs. Since the second half of last year, almost one-third of their shipments have been products ordered separately from China and then OEMed. ??As for manipulating the test reports, falsely marking the performance of products with similar quality by about 5-10% is even more of a traditional skill. ??If you give in and pay money in the Eurocopter case, it will be completely out of your reach as soon as this hole is opened. ?As for hard steel, at least the legal stalemate can last for a long time. After all, this is only their first supply to Eurocopter, and the latter cannot have too much evidence on hand. ? Even if the case is eventually lost after a lengthy judicial process, the impact of the incident will be diluted by time. ? ? A little reading of the history books explained it as "an error in the shipment of the first batch of products", and this matter was solved. It must be admitted that this set of operations is effective. Otherwise, this kind of fraud in the previous life would not have been exposed in batches until the 2020s. Although there was indeed a wave of heat in the media in the first few days, just as the NSK Group expected, Pierre could not provide enough strong evidence to prove that the problem lies with the other party and not with himself. On the head of the mole. ?In addition, although Western reporters can run very fast, the accuracy of their reports has never been praised. Therefore, after a few back and forth, the attention on the incident gradually subsided. Even the stock prices that had fallen before have gradually begun to recover. At this most critical moment, Chang Haonan took action. ?Through his personal connections, he contacted Li Liangyi, general manager of Jinling Motors, and the joint venture partner Fiat Group. You should know that although most of Iveco''s wheel bearings have been replaced with domestic products, other Jinling Fiat models and other parts are not as efficient. For the sake of "safety", many still use original imported models. ?As a result, I suddenly learned that the imported bearings I bought at a high price were actually OEM products made in China, and their performance was even falsely marked? Therefore, when NSK was completely unprepared, the Italian Fiat Group suddenly issued a public statement, saying that they conducted special sampling inspections of the global models they produced, and finally found that among a total of seven models from its three brands, the actual performance was lower than NSK Group parts with product numbers. The hardest hit areas are tapered roller bearings for wheel hubs and deep groove ball bearings for gearboxes. Since the fourth quarter of last year, it has been discovered that the number of parts involved exceeds 1.5 million. Finally, he also stated that he would recall the involved batch of vehicles as soon as possible and was preparing to sue NSK over the matter, demanding huge compensation. At this time, it can be said that one stone stirred up a thousand waves. Helicopters, especially military helicopters, are still too far away from ordinary people. Even if everyone sees the previous news, it is just for fun. After reading it, forget it, and few people will care about it. This is not the case with cars. ??Although Fiat is not selling well in China, it is still very popular in Europe. Whats more, there are supercar brands like Ferrari under it. In fact, if you read Fiat Group''s complete statement and the contents of the indictment, you will know that the vast majority of the vehicles involved this time are for the global market, especially the Chinese market. ??And most of them are still in the factory and have not been sold, and they have little to do with European local cars. But even in the Internet age more than 20 years later, not many melon-eating people would care about these details, let alone 1998. ?At this time, if you want to read the indictment, you may even need to apply to the corresponding court. ?Therefore, NSK Group, which had just barely gained a breather, was instantly pushed to the forefront again. ?Furthermore, Fiat has shown quite convincing evidence. That is the ones that Chang Haonan and Lan Xinzhi collected before. Now, the ones with numb claws are the Japanese. They never expected that a company would not even try to communicate with them after discovering a problem, but would directly start collecting evidence. It is completely prepared to fight until death. ? NSK Group, which was caught off guard, finally realized that the situation was not good for itself and was ready to change its response strategy. That is to say, give in. However, it is a bit late to kneel down at this time... (End of this chapter) Chapter 604 Is the spirit of craftsmanship enough? Chapter 604: Is the spirit of craftsmanship enough? In fact, NSK Groups decision to give in is not entirely their own decision. Mainly there is also pressure from domestic peers in Japan. ?As Chang Haonan found out before, this kind of large-scale and systematic fraud cannot be done by only one or two companies. ?When the incident becomes more and more serious, other Japanese companies with similar behaviors will have to worry about whether they may also be implicated if they allow the storm to continue. ?Therefore, from an overall perspective, the best way is for NSK Group to fight mines on its own and let this matter end. In other words, they are prepared to lose their coach to save their coach. Even if the NSK Groups reputation is discredited, as long as the limelight passes and the overall reputation of Japanese companies is not greatly affected, it will not be difficult to change its shell and be reborn after several changes of hands. But if it causes a chain reaction, it will be a big trouble. Therefore, just a few days after Fiat Group issued a public statement, NSK Group quickly kneeled down and admitted that there were procedural omissions in the quality inspection process and was willing to compensate for all losses caused by such incidents. ??When the news reached China, Chang Haonan had just finished the component-level testing of Turbofan 10 and returned to the capital. He was reporting to the Science and Industry Committee and Ding Gaoheng on the progress of the project and his subsequent trip to Chengdu. Xiao Chang, now that the No. 01 and No. 03 prototypes of Project 10 have entered the test flight stage, will any major changes to the aircraft design at this point in time affect the overall progress of the project? On this timeline, since Chang Haonan has successively developed a series of methods to improve test flight efficiency since participating in the 83rd Project, if there are no other problems, the speed of prototype testing will be much faster than in the past. . ? Equivalent to the J-10, which is my country''s first independently developed third-generation aircraft, but it already has 20 years of test flight experience as a reference, so it is naturally easier than trying to figure everything out from scratch. Is it going to have an impact...there will definitely be some. Chang Haonan is not a fairy. To redesign the entire structure of the aircraft in the near future, it will definitely require a lot of people from the original project team: However, compared to the improvement in model combat effectiveness, the impact on progress is still worth it. If nothing else, the remaining 200-300 kilograms of empty weight can free up a lot of freedom in the design of other subsystems. For example, more cables and air circuits can be arranged inside the wing, and two pylons can be added, which can also leave margin for replacing a phased array radar with a heavier antenna in the future. Ding Gaoheng heard this explanation and did not ask any more questions. After all, in the aviation field today, what Chang Haonan said still carries a certain weight. So he just nodded and replied: Then you first ask Rong Fei to prepare the relevant documents in advance. Then Minister Cao and I will sign directly. We will try our best to make the connection as seamless as possible without delaying the progress of the work. ?If there are major changes to a major equipment research and development project like Project 10, it must be signed and approved by the Commission of Science, Technology and Industry for National Defense and the General Armament Department at the same time. ?Of course, higher levels must also nod, but Chang Haonan reported this matter when the J-10 made its first flight last year, so there will be no problem. ?Just when the topic about the J-10 came to an end, Lan Xinzhi stood outside and knocked on the door. Director Ding, Mr. Chang. ??As he spoke, he placed a telegram manuscript in his hand on Ding Gaoheng''s desk: In news sent back from the Consulate in Marseille, NSK Group announced that it accepted the conditions proposed by Eurocopter and Fiat Group, and agreed to provide the same level of compensation to all other users who had similar problems. The two people who were sitting in the office were almost stunned when they heard the news. NSK Groups attitude... changes very quickly? Ding Gaoheng picked up the telegram and read it again: I thought they would choose to fight to the end. Because the NSK Group''s fraud was first discovered in the die forging press project, after Chang Haonan''s initial investigation, the Science and Technology Commission held an expanded meeting of team members to discuss the matter. The current strategy of digging holes for the Japanese was also decided at that time. So Ding Gaoheng naturally knows a lot of details. Its really not like a Japanese character. ?Chang Haonan actually expected that NSK would change its attitude, but it was a bit surprising to him that the skateboarding was so natural. ?Especially when just a week ago, the other party was saying harsh words to Eurocopter and said it would go to court. It seems even more hilarious. "However, I guess it is because they have exerted some domestic pressure." After calming down his almost unbearable mood, Chang Haonan speculated: After all, everyones attention is still focused on the NSK Group itself. If this matter continues to ferment, those good Western reporters dont know what they will continue to dig up. According to our investigation results, this is not the only Japanese company that privately engages in OEM sales or passes off substandard products as good ones. Hearing this, Lan Xinzhi next to him couldn''t help but feel a little anxious: Thenin any case, NSK has admitted this, and has held a special press conference to explain and apologize for the matter. This is a sufficient gesture. Will this matter just go away? Chang Haonan instantly caught the key words from his words: Wait a minute, you said they are going to hold a press conference to apologize? Lan Xinzhi, who had never seen the spirit of craftsmanship, naturally did not expect that Chang Haonan''s focus would be here. He hesitated for a moment before nodding: "Well...at least, that''s what the draft says, the time is the afternoon of the day after tomorrow." This news made Chang Haonan sit up straight: "This matter needs to be reported by the media. It is best if it can be on the news. It will be on all CCTV news in rotation and broadcast for several days." Also, we ourselves are also victims of the NSK fraud incident. This matter must be prosecuted in domestic courts, go through the legal process completely, and let the media do a follow-up report! Wanting such a big battle? Lan Xinzhi blurted out in surprise. ??Although Ding Gaoheng next to him did not speak, his expression was obviously shocked. Chang Haonan nodded without hesitation: If we want to outperform the Japanese in the international market, at least domestically, we must first break the idol that Japanese companies have built for themselves over the years. Think about it, when we first discovered that NSK Group was committing fraud, even our first reaction was that we couldnt believe it, let alone ordinary people. After so many years of opening up, and with the deliberate momentum created by various media and propaganda, Japanese companies have almost become a belief in our country. This is unacceptable to us under any circumstances! In fact, as a reborn person, Chang Haonan certainly does not have the so-called "hard to believe" problem. ?But after all, Ding Gaoheng was also there at this time. It would be a bit disrespectful if he didn''t include himself. Okay, Ill coordinate with the Propaganda Department, there shouldnt be any problem. Ding Gaoheng made the final decision and agreed to Chang Haonans plan: In addition to these, should we take some actions internationally? Of course. Chang Haonan replied almost without thinking: "A great man once said that it is better to chase down the poor bandits with the remaining brave men, and not to use the name of the academic overlord. Now is a good time to beat up the lost dogs, and we must not let them go easily." NSK Group wants to draw all the firepower to itself by bowing and apologizing, but we cannot let them do so. Dont alert the snakes in the past two days, let them relax their vigilance, wait until the day after the press conference, and then use the European media to expose the black materials we have about several other Japanese companies! (End of this chapter) Chapter 605 "A Tragedy Caused by a Bearing" Chapter 605 "Tragedy Caused by a Bearing" The afternoon two days later. Chang Haonan made a special trip to the Science and Technology Commission and sat in front of a TV with Ding Gaoheng and others, preparing to watch NSK Groups press conference on the bearing fraud incident. In the past few years since the late 1990s, domestic television broadcasting technology has made tremendous progress. In 1996, some temporary content (such as the test flight of the J-8C) had to wait two days before it could be made into news. By 1998, it was possible to broadcast some major events on the same day or even live broadcast. Facts have proved that the Japanese''s performance is still very stable. The apology process of Japanese companies in the 1990s is no different from that of more than 20 years later. After the opening ceremony, several main leaders of NSK Group bowed collectively without saying a word. ?This posture directly shocked several other people in front of the TV: The Japanese are quite generous when they hold a press conference If I had known this earlier, wouldnt there have been none of the things that happened next Feel like... your attitude is okay? Chang Haonan didn''t say anything, but he just said don''t worry, you will know the value of the bowing part in this press conference later. It should be said that in this era, Japanese apologies are still not that common. It was all very fresh in the beginning. ?Hence, this sudden attack has earned enough film from various media outlets. However, when these people sat down, the content of their speeches gradually became a little strange. Such a serious problem must be caused by an unreasonable situation within the company... After our internal investigation, we found that there were some irregularities and omissions in the sample testing and outbound process, for which we are deeply regretful and disturbed "This irresponsible behavior has also caused irreparable damage to the company''s reputation. We will definitely give a satisfactory explanation and conduct deep introspection..." ?Everyone sitting in front of the TV, except for Chang Haonan, who has already guessed how the plot will develop, is already a veteran in the workplace. The lowest ranking person, Lan Xinzhi, is also a bureau-level cadre. ??The skill of speaking and doing Tai Chi is absolutely perfect. ?However, this group of people are still stunned by the nonsense literature. After a while, Ding Gaoheng took the lead and said: President Fujimoto Chezuru talks a lot, but why is there no actual content at all? "If nothing else, if there is such a big scandal in the company, even if it is just a pretense, someone must be found to take responsibility for it, right?" Huai Guomo next to him also had a look of disbelief: Moreover, it just said that we need to reflect deeply, but it didnt mention how to improve our work in the future to avoid the same thing from happening? ??Everyone said something to each other, and the scene quickly turned into a complaints conference. ??If there were barrage software this year, it would definitely be very exciting. ?At about this time, a row of five people on the TV stood up again and bowed towards the camera. ?Then, the on-site host announced that it would be time for reporters to ask questions. Is this the end? ?Several other people were originally interested in watching the excitement, preparing to see how NSK Group prepared to publicize this seemingly unsolvable corporate image crisis. The result turned out to be good for others. No solution? Thats puzzling! I am just a broken person. I finally understand. The only highlight in this whole scene is bowing, right? ?Another deputy director, Zhang Dongxu, almost spilled the water just now, so he tightened the lid of the thermos cup and said: This is not an admission of mistake at all That cant be said. Chang Haonan, who had been holding back his laughter for a long time, finally found the right moment to speak: What they mean is, I know Im wrong, but Ill still dare to do it next time One sentence made everyone laugh, and the conference room was immediately filled with a happy atmosphere. After gradually calming down, Ding Gaoheng looked at President Fujimoto who was fiercely criticized by reporters in the live broadcast but still responded skillfully with long and difficult sentences, and asked with some confusion: But if we do this, how can there be any customers who would dare to buy their products in the future? Wouldnt this company be completely destroyed? Thisnot necessarily. ?Chang Haonan shook his head and continued to explain: "I estimate that other domestic companies in Japan should have made some guarantees to NSK, such as that they will still make a certain amount of purchases. After all, few end customers will delve into the supply of this product when purchasing a product. Who is Shangdu? If NSK changes its name or changes its equity later, it may be easy to get away with it. Can this still happen? It was an eye-opener for several people in the conference room today. Thats why we cant be satisfied with this. Chang Haonan further explained his next plan: We must take advantage of his illness and kill him to prove to the world, especially users in the European and American markets, that this incident is not an isolated case of NSK Group, but a common problem among Japanese companies as a whole. Although it is impossible to completely kill the Japanese manufacturing industry in a short period of time, at least the concept of counterfeiting must be associated with them, so that buyers can think of this round of counterfeiting incidents when they see Japanese brands! The TV is still broadcasting President Fujimotos sterile answers, but no one cares about the content. So, this is why you chose the European market as your entry point and then cooperated from within the country? Ding Gaohengs question is a bit flattering, and it is very suitable for eliciting the content behind Chang Haonan. So the latter nodded immediately: "Yes, for the European and American markets, Japanese products were synonymous with low-quality and low-priced products more than a dozen years ago, in the early 1980s. It was only in the past five or six years that they gradually began to move towards mid-range and mid-range high-end products. Get closer." "That is to say, in Europe and the United States, there are still quite a few people who are deeply impressed by the situation of Japanese products back then, and will be more likely to accept the set of mindsets I just mentioned. Even for some people, they might still be I think so, this time it just further strengthened the stereotypes of the past..." ? ? ? "And looking at the domestic market, firstly, the international influence cannot be compared with Europe and the United States, and secondly..." At this point, Chang Haonan paused for a moment, then continued: "When Japanese companies entered the country, they started with a relatively high-end image. Coupled with so many years of image building and the indoctrination of consumers through buying the media, they have formed a strong ideological stamp. If they want to break the situation from within, , its very difficult. But on the other hand, Europe has a higher degree of recognition in the country, a better image, and a stronger ideological stamp. So after they all lose confidence in Japanese companies, we will make efforts domestically, and the effect will be twice the result with half the effort..." This round of explanations can be said to be clear and logical. It''s just that everyone from Ding Gaoheng to Lan Xinzhi felt a little sad. They knew that although some of Chang Haonan''s words were not pleasant to hear. But its all true. Over the past few years, we have indeed become richer in general, but for some people, the more their pockets get bulging, the softer their kneecaps become After all, Ding Gaoheng was born in the field of two bombs and one satellite, and his feelings about this are deeper than others. So, our combined punch will not only allow our Chinese companies to physically occupy the market vacancies left by the Japanese, but also to fight a spiritual counterattack! Originally, everyone was just emo casually, but no one expected that Chang Haonan was actually prepared in this regard. Although no one asked, several doubtful glances were already cast towards him. Dont some of our domestic media and some people in the cultural circles like to make up short essays to praise foreign countries? "Stories like "Summer Camp Story" and "Washington Cut Down the Cherry Tree" have even been included in our elementary school textbooks, which is outrageous." Immediately afterwards, Chang Haonan said what he had wanted to do for a long time: "In this case, we will treat others with their own treatment, and find people to write some such articles and publish them in some entertaining newspapers and magazines, at least to counteract them." His ideas are somewhat advanced in this era. Especially for the leaders with technical backgrounds present. ?But the truth is not complicated. So, someone quickly figured out the joint: Xiao Changs approach is good. If we only rely on official news for reporting, it will definitely not be effective for people who dont pay much attention to the news or are unwilling to believe the news. But written into short stories and interspersed with entertaining content, it can have a subtle impact. Thats the truth. ?Seeing that someone finally got his idea, Chang Haonan showed a satisfied smile: Also, we dont make up stories, we just write about things that happen in the real world. "For example, this time NSK Group shot itself in the foot. I think I can write a story called "The Tragedy Caused by a Bearing" to tell everyone that you must be honest when doing things. Otherwise, even if It is a huge multinational company, but it may have ruined its plate because of a small bearing! ??As a person with little literary background, Chang Haonan''s story ideas are naturally not original, but come from short compositions he has read in his previous life. It is said that in Japanese restaurants, you have to wash the dishes 7 times. However, there was a Chinese student who only washed the dishes 5 times in the past and was fired. ?Although the content of the story is purely made up, the methods and methods can still be used for reference. ?So, Chang Haonan used it and slightly modified it, and then went back to disgust the other party. ?However, for other people who have not seen this routine very often, this is simply a dimensionality reduction blow. ?The Director of the Department of Personnel and Education, who is responsible for publicity work, immediately brightened up: "I suddenly felt that this kind of short story seemed... quite interesting... at least it didn''t seem very stereotyped on the surface." When he said this, he was slightly embarrassed. ??However, judging from the expressions and eyes of other people, it seems that they all have similar thoughts to him... Then, he asked tentatively: "How about... we create a publication of our own that publishes content that is not nutritious and is just for fun, and then... intersperse a few targeted stories in each issue?" Its a propaganda position. If we dont occupy it, others will occupy it. Its better to be proactive and screen out some submissions with ulterior motives. At the level of the Commission of Science, Technology and Industry for National Defense, it naturally has publishing authority. In fact, they even have their own magazine. Its just that no one has ever thought of doing this in the past. ?This slightly unrestrained idea made Chang Haonan stunned. ?Soon I realized it was completely feasible. If I remember correctly, the "Double Tree" magazine, which became famous in later generations and produced countless short articles, has not yet been launched. I think its totally worth a try. ?Chang Haonan also tentatively expressed his affirmative opinion. ?Of course, although he is called a non-staff deputy director, he is not a real deputy director after all, and he has no decision-making or voting rights. But its off to a good start. Then, starting from Ding Gaoheng, everyone nodded. So, this matter, which was originally a bit of a side issue, was settled in less than five minutes from the first time it was raised. Sowhat should the magazine be called? This question was originally asked to Ding Gaoheng and several deputy directors. However, they almost looked at Chang Haonan in unison. The meaning is very clear Since you were the one who brought this topic here, I guess you already have a rough draft, right? Actually, the latter doesnt really exist. ?But now that the atmosphere was at this point, he had no choice but not to speak. "How about calling it "Double Tree" instead?" (End of this chapter) Chapter 606 It is better to leave the remaining brave men to chase the poor bandits Chapter 606: It is better to use the remaining courage to chase the poor bandits Publishing magazines and promoting propaganda is, after all, not the main business of the Commission of Science, Technology and Industry for National Defense, nor is it the main purpose of holding this meeting today. ?Therefore, after the initial direction was set, the topic naturally returned to the serious direction. Ding Gaoheng cleared his throat: "Having said that, after NSK''s press conference, no matter how tough they were, they finally admitted that they had committed quality fraud. I estimate that the next few days should be a small climax of reports. What specific information does Xiao Chang have? No plans?" "In addition, I remember you said before that many of these Japanese companies purchase products from our country and then sell them with their own packaging and OEM labels. This matter must also be exposed, right? Only in this way can we Companies are going overseas to occupy the current ecological niche of Japanese products. Its natural. ?Chang Haonan nodded immediately and explained to everyone: Actually, I was originally going to treat the OEM issue as part of the package against NSK, but their attitude changed too quickly and caught me off guard, so I didnt have time to use it. In addition, I actually also considered that NSK Groups setbacks this time were quite severe, and they were all related to relatively sensitive quality issues. "If we state at this juncture that they purchased products from Chinese companies and OEMed them after false labeling, it will easily give people the impression that our products are fake. If the other party launches another attack at this time, If the media goes on the offensive and slightly processes the facts, we may end up being passive. So, its best not to bind Ice Axis to NSK. This concern is very real. A few people have basically seen through the fighting power of the Chinese media. There is no hope. If nothing else, for such a big thing this time, except So after hearing this, the other people nodded in agreement. Fortunately, we have a lot of evidence in our hands. There is no need to look at NSK for profit. We can switch to another one..." Speaking of this, Chang Haonan lowered his head and pondered for a moment, then raised his head again and said: In this way, I will contact Xingcheng Special Steel Group through personal connections and ask them to go to EU countries to sue Japans Chunakajima Special Steel. "The latter has not found any falsification of quality inspection reports so far, but about a quarter of its shipments are direct OEMs. Its users include many European second-tier bearing brands like Rubix, and some are very famous. European tool brand, its influence is still sufficient. "If the feedback is still not obvious enough, then Luoyi Bearing Group can also sue NTN Group in the same way. Although they also have quality problems, they have not reached the level of NSK, and they are suppliers of almost all Nissan and Volkswagen. , has a closer relationship with ordinary people in Europe. "It seems that Xiao Chang is well prepared. This is to completely block the Japanese''s retreat..." The expression on Ding Gaoheng''s face was filled with uncontrollable joy. On the one hand, being able to personally make the Japanese suffer a big loss is always a happy thing from an emotional point of view. On the other hand, due to the existence of the Equipment Industry Department, this matter has huge benefits even from the perspective of departmental interests Although the scope of authority of this newly established department is still relatively limited, it is well known that within the system, the difference between having a grip and not having a grip is a natural chasm. As for whether the grip is large or small, it is not that important. Because it is not static, but is highly related to the level of leadership. Just like this time, if we can proceed exactly as Chang Haonan said, then several companies that are not under the management of the Equipment Industry Department, and even private enterprises like Xingcheng Special Steel, will more or less cooperate with the Science and Technology Commission The system is involved. ?You may not see the difference in the short term, but it will change over time... Originally, after this year''s conference, Ding Gaoheng should have transferred to a certain idle position and retired to the second line to enter retirement. Now, because the huge changes in the country''s overall industrial system require people who are familiar with the situation, he still remains in the position of director of the Science and Technology Commission at the age of 67. ?Even though the level has not changed, the inner meaning is completely different ?Different levels correspond to different retirement ages, which means that he may have a chance to take another half step forward. In short, the mentality of a person who is striving for a future and a person who is waiting for retirement is naturally different... ?Unsurprisingly, NSK Groups unique apology conference quickly caused an uproar There is no responsible person, no changes to the quality inspection system, and no specific compensation plan. ??Oh, your apology is really just an apology, bowing and saying "Private Marseille" and that''s it? The attitude is very good, but I will do it again next time. Can you please translate for me, what does "there are some irregularities and omissions in the sample testing and delivery process" mean? Meaning that your company is completely unaware and they are all temporary workers? Want some face? ?Eurocopter, which was the first to discover the problem, didn''t say anything yet, but Fiat stopped immediately. ?Although tests have proven that the virtual standard performance will not affect vehicle safety, their losses are still the largest in the whole matter. Therefore, almost as soon as NSKs press conference ended, the latter held its own press conference, stating that it would never accept such an explanation and would definitely safeguard market rights and so on. ? ? Immediately afterwards, a huge compensation request of 230 billion Italian lire (approximately 140 million U.S. dollars) was submitted. Huge indemnity with European characteristics, you have to taste it. Obviously, in the face of a lot of complete evidence, it is almost impossible for NSK Group to win the case, and the most it can do is reduce the amount of compensation. ?Aside from the legal proceedings, condemnations from peers in the industry also poured in. Even many Japanese companies have joined in, some of which are particularly loud. In short, no matter what the outcome is, after nearly a month of turmoil, the reputation of NSK Group has basically collapsed, both in the industry and in the minds of consumers. Some people have even begun to pay attention to specific parts suppliers when purchasing bulk consumer goods such as cars. But on the other hand, the war of words between Fiat and NSK has indeed attracted the attention of almost all European media. People tend to think that this should be an individual case. Dont you see that colleagues all over the world are scrambling to draw a clear line with them. ?As the exciting war of words gradually turned into complicated and boring legal issues, the heat of the incident gradually began to cool down. After all, people who eat melons are also prone to aesthetic fatigue. They will soon get tired of looking at the same things every day. ?Its just that a great screenwriter can always make the plot climax one after another. ?Two companies from China, Xingcheng Special Steel Group and Luoyi Bearing Group, sued Japan''s Chunakajima Co., Ltd. and NTN Co., Ltd. in local courts in Germany and France respectively. The two claimed that a considerable part of the products sold to Europe by the latter two in the past six months were purchased from them and then re-branded for export. Even the inspection characteristics of the materials used in our products are also attached. Each user or manufacturer can use this feature to determine whether the product in hand is an original Japanese manufacturer or an OEM product from China. ?Originally, this kind of news might not actually get much attention. ??Naihe happened to catch up with the war of words between Fiat and NSK. The onlookers who had just tired of the previous one would naturally be attracted by this event of the same type but with a different plot. Chang Haonan was not even satisfied with the monotonous print media and TV news, and instead sponsored several TV programs. In the program, the host purchased several batches of wheel hub bearings marked with the NTN brand from the after-sales service of different car brands, and sent them directly for inspection without unpacking them to see if there were any samples that met the characteristics stated by the two Chinese companies. As for this test, someone will inevitably break the defense. (End of this chapter) Chapter 607 Chinese products come to Europe! Chapter 607: Chinese products enter Europe! In fact, in the past few days, when colleagues from all walks of life were beating down the ducks and accusing NSK Group of fraud, NTN, which is also a Japanese company, was at the forefront and the loudest group. The main reason for this behavior is of course because of a guilty conscience. Now shouting louder can slightly reduce the suspicion. ?But apart from that, it also got them a lot of attention. ? Even many customers who were originally NSK Group started to contact NTN. After all, the premiums for these first-tier bearing brands in Europe are indeed higher. ??If there are alternatives with suitable quality and price, no one will have trouble with money. After all, the two are both Japanese companies and have similar product cost-effectiveness, performance calibration and usage habits, so the handover should be smoother. ?It cant be that if one Japanese company has a problem, another Japanese company also has a problem, right? ?Then why dont you say that the entire Japanese manufacturing industry has problems? How is it possible? ??If there is such a big problem, shouldn''t it have been discovered long ago? ?So, under the guidance of such simple logical derivation, NTN Group''s stock price and performance actually experienced a rise against the trend in the past few days. ?Of course, at such a critical juncture, they did not dare to commit crimes too arrogantly and quietly carried out a product upgrade. In fact, the performance that was falsely marked in the past was reduced, then downgraded by half a grade, and sold at a lower price. Since the purchase price from China is low enough, even so, there is still a rather exaggerated profit margin. As for Volkswagen, Peugeot and other companies that had not included NSK in their supplier list, they all breathed a sigh of relief, and at the same time they were a little gloating. After all, although Fiat''s initiative to expose its shortcomings this time has earned a wave of reputation, the compensation is also heavy enough. Even if we can get the money back through litigation later, it will take a lot of time, and this does not include the production that is bound to be affected in the short term due to changing suppliers. Italy, Turin. Headquarters of Fiat Group. Procurement and supply chain director Andrews Guarino is working with his deputies to deal with a daunting list of suppliers. ? A month ago, the group suddenly received a piece of information from its partner Jinling Motors in China, indicating that NSK Group, one of its important suppliers, was suspected of falsifying quality inspection data. At the beginning, Guarino actually didnt believe it. However, after seeing the evidence submitted by China, he immediately realized that the word "suspect" was still too euphemistic. ?This is simply a real hammer. ?Although so far, NSK brand bearings are still only installed on non-European models, and Fiat''s market outside Europe is not large, so it has not caused any irreparable impact. But according to the original plan, a large number of European and global models that will be updated next year will be put into use. ?Once handled improperly, this black swan event may even directly disrupt the replacement schedule of the entire group''s brands. ??If NSK Group were an Italian company, I am afraid that the people in charge would have been taken care of by the mafia. In short, from that day on, Guarino hardly slept well. Director, according to the report from the Jinling Fiat joint venture, they have been using two Chinese brands of bearings in the field of commercial vehicles to replace the NSK Groups models in the field of commercial vehicles. Deputy Director Robert Gianni opened a folder and handed it to Guarino: Judging from the feedback data in the past six months, no problems have been found, and all data meet the requirements. Moreover, they will sample each batch of goods and randomly hand them over to different third-party agencies for testing. Obviously, the last sentence is very targeted. ??Guarino, who had always frowned, did not respond immediately. Instead, he took the folder and quickly browsed the contents of the report with his head lowered. "Half a year...isn''t it a little short?" ?He hesitated: If something goes wrong again, the replacement of our new models next year may really have to be put on hold... The operating environment of commercial vehicles is generally harsher than that of passenger vehicles, but even so, just a few months cannot be regarded as passing the market test. Now Guarino is a bit like being bitten by a snake once and fearing the well rope for ten years. "Two days ago, NTN also sent us their supply orders. I think they are all Japanese companies, and the transition will be relatively easy..." He stopped mid-sentence. Because I saw the price column in the report appendix. ??If he didn''t trust his deputy''s ability to do his job, Guarino would even wonder if he had made the wrong decimal point. It is true that this data is the domestic price in China. Considering that Jinling Automobile and this company called Luoyi Bearing Group are both their state-owned enterprises, it may even be an internal price. If exported to Italy, there will definitely be other costs involved, and the final delivery price will definitely be higher. But he has been working hard in this industry for more than ten years. In just a few breaths, he can roughly estimate that even taking into account the intermediate costs and the profits that the other party must set aside, the profit will be better in his own hands. The quote given by NTN was about one-third cheaper. Considering that millions of cars are sold every year, this is obviously not a small amount of money. Otherwise, we can consider using Huaxia Enterprises as an alternative supplier, and ask them to provide 5% or 10% of the products for trial use. If no problems are found within a few years, we can gradually expand the scope of application? Giani obviously saw where his boss was struggling and came up with a compromise. Indeed ? Guarino''s brows finally relaxed a little, and just as he was about to nod, he heard the sound of rapid footsteps on the floor with high heels from outside. Immediately afterwards, there was a knock on the office door, and the anxious-looking secretary stood at the door and poked his head in. Simone? Guarino and Gianni turned their heads together. "Director, the TV news... is broadcasting about several other Japanese companies. I think... you should take a look." ?Secretary Simone was breathing rapidly, and she had obviously jogged all the way. The two people who were sitting next to the coffee table looked at each other. Obviously, judging from Simone''s appearance, this is not something that can be explained clearly in a few sentences. ?So, the three of them rushed to a conference room downstairs as quickly as possible. ??A TV inside is showing business news. Two Chinese companies sued a Japanese company for infringement of their goodwill rights The right to goodwill should be studied more by the legal community. ?In common law countries, there are some relevant cases, but in civil law countries, there is not much reference on how to define, confirm and protect goodwill rights. ?Hence, when he saw this title, Guarino was stunned for a moment. ?However, after all, he had been in a high position for a long time and could not lose his composure over such a trivial matter. He quickly understood the meaning of the news. Two Japanese companies, without the knowledge of the Chinese company, put their own labels on the products produced by the latter and sold them all over the world. Therefore, the plaintiff believes that although there is no economic problem with this process, the intangible assets such as the brand image brought about by the product sales process have been deprived by the defendant company, so it requires compensation, an apology, and a formal statement of events to restore its reputation. . int ?Guarino sneered and shook his head: Which two Japanese companies did this? Its really The disdainful words stopped abruptly in the middle of speaking. Because the next scene on the TV was cut to an interview with the legal personnel of the defendant company. The subtitles below clearly read (Defendant) Legal Counsel of NTN Co., Ltd. "ah?" ???Guarino, who just had the mentality of eating melon, immediately became numb: These Japanese companiesare not all just the same thing, are they? (End of this chapter) Chapter 608 Overdraft and repayment Chapter 608 Overdraft and repayment As the saying goes. Again and again and again, not again and again and again. When a company has problems, it can be regarded as an isolated case. Two families can also be interpreted as small-probability events that happen by chance. However, now so many Japanese companies have experienced thunderstorms one after another in just one month. ??And they are all related to quality issues. That''s worth talking about. It cant be a massive number of cases, right? ?So, faced with the undoubted facts, Guarino finally began to realize that something was wrong. Director, just as the news is being released, some good media are already preparing to make a program on this matter. ?After the main content of the news was played, Simone took two steps forward and switched the TV screen to the segment just recorded. ?That was a preview of a car show. They said they would purchase several batches of wheel hub bearings marked with the NTN brand from the after-sales service of different car brands and send them directly for inspection to see if the bearing materials have the characteristics mentioned by the two Chinese companies. "Um" ?Guarino nodded slightly: You can pay attention to this program and remember to record it when the time comes. "OK." Simona nodded. After confirming that there was nothing else to do, he left the meeting room. ??Guarino took a long breath and sat down on a chair without even returning to his office. Although legally speaking, the NTN and Xingcheng Special Steel matter has just begun, and the claims of the two Chinese companies must be true without substantiating them. But for a senior practitioner like him, he will naturally have his own judgment outside of the law. ??There is no need to even analyze the evidence. Judging from the fact that NTN Group was hesitant during the interview and did not dare to respond directly to the questions... Nine times out of ten it is true. Its in vain that I just wanted to find another Japanese company to replace NSK Group ? ? Guarino felt frightened when he thought that he had almost regarded the NTN Group, which had exposed the scandal, as the next main supplier. ????????????????????????????????????????????????????? ?The Fiat Group has directly become a pure clown. Deputy Robert Gianni, who had been silent just now, was a little confused by the sudden news and asked hesitantly: Well...Director, lets switch to a new supplier... Stop it for now and prepare to submit a report to the board of directors to explain the recent situation clearly. Remember to focus on the Japanese problem and pick out the two of us. ??Guarino leaned his whole body on the back of the chair, and his whole person looked more vicissitudes than before: In addition, we can already send people to have informal contact with the Luoyi Bearing Group in China. As long as the board of directors nods, we will start formal negotiations. ??Although it was Giani who first proposed to include Chinese companies in the supplier list, such a drastic decision was obviously beyond his expectation: Uh maybe its a little too hasty, after all, the result is still In the middle of speaking, he was interrupted by his boss waving his hand: No need to wait for the result. I kind of understand why Jinling Fiat said that using bearings produced in China instead of Japanese models has a high degree of matching. "They are all products from the same factory and the same assembly line. If you replace yourself, the degree of matching is not high..." At this point, he couldn''t hold back himself and laughed out loud. By the way, theres one more thing. After calming down a little, Guarino emphasized another sentence: "In the future, for all suppliers, whether they are from Europe, North America or China, even if they make slight concessions on other conditions, they must clearly state it in the contract. We will conduct random inspections on every batch of goods! " He was afraid. The loss cost is high. That is a matter for the marketing department. Their supply chain department really can''t afford such trouble. Speaking of the director, will there be more intensive special inspections of Japanese companies in the future? Giani took out a notebook from his pocket and asked while writing down it. But there was no response for a long time. He subconsciously raised his head and found Guarino across the conference table looking at him with compassion. Looks of caring for the mentally retarded.jpg ?After a moment of silence, the latter finally spoke again, with a decisive tone: From now on, as long as I am still in charge of procurement and supply chain, I will never deal with any Japanese supplier companies again! As for those who have signed the contract now ?Guarino rubbed his chin in thought. Although he has blacklisted all Japanese companies in his mind, from a legal perspective, as long as the other party has no real fault, it certainly cannot break the contract casually. But the current situation clearly requires him, the supply chain director, to conduct risk control in advance. Soon, he thought of a way to get the best of both worlds: Giani, please contact the quality inspection department and ask them to focus on checking the Japanese suppliers we currently have business relationships with to find out what is wrong with their products. Especially those parts involving vehicle safety, such as Takatas airbags, must be strictly investigated. In addition, I remember that the French PSA Group also has many models using Takata airbags. You can also contact them to see if you can jointly put pressure on them and change the supplier. What he said was very clear. Let the quality inspection department check "where is the problem" rather than "whether there is a problem". In other words, you have to find some differences for me. ??It would be best to terminate the contract directly and get some compensation if you take a step back. Okay, Ill do it right now. Giani looked at the dense items in his notebook and breathed a sigh of relief. In the next period of time, I am afraid it will be difficult to have a stable life... Compared to Fiat, who was just afraid, it was the Germans who really broke through the defense. They originally wanted to have fun watching their Italian and French counterparts, but ended up eating the food right at home. You should know that the proportion of NTN bearings used in Volkswagen Group models is much larger than that of NSK bearings used in Fiat Group. Huaxia, Commission of Science, Technology and Industry for National Defense. ?Lan Xinzhi hurried into Ding Gaoheng''s office holding a document. ?Chang Haonan was also inside at this time. "Mr. Chang, the German Volkswagen Group asked us through the joint venture in China whether we can make public the relevant evidence that NTN and Chunzhongjima have falsified the origin of their products, and... they also want to know whether NTN, in addition to its origin, can There are instances of fraud on product performance. Hearing this, the other two people in the office smiled almost at the same time. Disclosure of evidence still requires contact with courts in Europe, but considering that we are prosecuting in Germany, it shouldnt be a big problem and we can agree. Chang Haonan thought for a moment and then replied: "As for whether product performance fraud exists, we can hold them off for a while and say that we are also sorting out the evidence in this regard and cannot provide it for the time being. We will not mention this matter until several of our Chinese brands have established their position in Europe. Its not too late. Ding Gaoheng took the letterhead printed on the Spring City Public Letter, took advantage of Chang Haonan''s reply, read it from beginning to end twice, and nodded with satisfaction: It seems that the effect of Xiao Changs action this time is immediate! As he spoke, he flicked the documents in his hand with his fingers: The Germans can no longer sit still... Lan Xinzhi, who had just recorded Chang Haonans opinions, raised his head again: Not only the Germans, but almost the entire Europe are now investigating Japanese companies in the supply chain, and have uncovered a lot of things that we dont even know about. "For example, Takata Group''s airbags were found to produce sharp fragments during the explosion process, directly threatening passenger safety. Flame-retardant materials produced by Toray Group falsified the flame-retardant coefficient test and failed to pass the test. Metals produced by Hitachi Chemical Group The material and mechanical properties are unqualified..." There are still some things that we have not collected and havent had time to sort out. In short, the two major European automobile and aviation industries have basically blacklisted numerous Japanese companies. Hearing this long list of contents, even Ding Gaoheng sighed: Its really unexpected...this image of Made in Japan didnt last even a month... ?Chang Haonan was certainly mentally prepared for this. ?Especially things like the air bag door, which were very big incidents in my previous life. If you come out to fool around, you will always have to pay back... (End of this chapter) Chapter 609 Torch quality certification system Chapter 609 Torch Quality Certification System What has happened in the past month can be summed up as - Japan fell, and China was full. ?Of course, strictly speaking, it is far more than just one country that benefits from this. At the end of the 1990s, although Japan has entered the so-called "lost XX years" stage, people''s cognition generally lags behind compared to the real world. Hence, Japans overall international image is still that of a developed country with good momentum of development. For European and American countries, which are both developed countries, this kind of perception has inherent filters. Coupled with a certain cost-effectiveness and brand (story) price (thing) value, As a result, Japan''s manufacturing industry should have been in a strong stage in the international market in this year, and even in the next ten years. In the original timeline, this situation lasted until about twenty years later, when China''s manufacturing industry gradually rose and began to squeeze out the living space of Japan and South Korea. However, today, large-scale counterfeiting has been exposed in advance by Chang Haonan Design, and has had a very concentrated impact. Many Japanese brands have not been able to completely get rid of their past image of low quality, and have been reverted to their prototypes. This directly leaves a huge market that is even in the blue ocean stage. It can be said that any country with industrial capabilities and relatively low costs can get a share of the pie. This is something Chang Haonan is happy to see. On the one hand, based on Chinas current overall industrial level, except for some key areas, it is indeed impossible to fully fill the market vacancies left by the Japanese. In this case, it is naturally best to mix the water. Otherwise, no matter how big the news is, if the impact cannot be followed up continuously, people''s memory will be very short. ??If the Japanese really make a comeback, it will definitely be more difficult to deal with than South Korea, Brazil, Turkey, and a group of Eastern European countries. On the other hand, this is also conducive to the formation of a situation of using more to defeat less. ??Anyway, so far, almost all countries are adding insult to injury, not only intending to encroach on Europe''s mid-to-low-end market, but also launching domestic investigations into several involved brands. However, because it was Chang Haonan who planned this incident, China must be the most well-prepared and benefit relatively greatly. In short, after a round of extreme operations, although the Japanese manufacturing industry will not be completely crushed, it is certain that the latter will definitely go downhill twenty years in advance. Considering that Japans financial industry was actually basically finished a few years ago, how can a country that cant go down both virtual and real paths develop... Smiling to death is not a problem that Chang Haonan needs to consider. ?Before leaving for Chengdu, Chang Haonan made a special trip to the Science and Technology Commission. Mainly submit a plan for handling follow-up related miscellaneous work. Similar to leaving a good plan, as long as Lan Xinzhi follows it, it will not be difficult to end it smoothly. Otherwise, after arriving in Chengdu, the work intensity will increase again, and there will be many field tasks, so it is easy to be unable to contact people. It would be bad if it delayed the business here. After the dust settles on this matter, our new department of Equipment Industry Department should be completely established. Ding Gaoheng lay half-back on his office chair, leisurely reading the report in his hand page by page, and said with a satisfied tone. ?Although the contents of the report are all straightforward, combined with the recent victory in the international market, I still feel very happy inside. Its just that, after all, I am already over 60 years old, so it is not convenient to show it openly: First there was the joint venture established by Torch and C.B. Ferrari, and then there was the seizure of Japanese companies share in the European market. Everything was perfect both internally and externally, and there is nothing to criticize anymore. At the meeting when the Equipment Industry Department was first established, opposition voices mainly focused on two aspects. First, the existence of such a department is obviously against marketization and is not conducive to China''s integration into the international market. Second, it is believed that excessive administrative intervention in the industry will lead to institutional rigidity and unfair competition, and ultimately harm the development of the entire industry. Its all the same old thing. But in this era, this rhetoric is very effective. It can be said that if the Economic and Trade Commission had not jumped out in advance to lift the roof and attracted a wave of firepower, the "window-opening" behavior of establishing the Equipment Industry Department might not even have been passed smoothly. Therefore, it seemed at the time that it definitely brought enough pressure to the Committee of Science and Industry. If you really dont do it well, something might happen. Ding Gaoheng himself may be affected. ?However, in just over two months, all worries disappeared. The two things Ding Gaoheng just said can be said to be a direct slap in the face of all doubters You said it is not conducive to China''s integration into the international market, but our Equipment Industry Department takes the lead in deep technological integration with foreign companies. You said there is unfair competition that may damage the development prospects of the entire industry. However, we have successfully entered the European market with a group of companies that are not part of the Science and Technology Commission system, including even private companies such as Xingcheng Special Steel. Is there anything else to say? ??Although the rumors at the media level will certainly not disappear, they will even intensify with the defeat of Japanese companies in Europe. But these people cannot affect the overall situation at all. The risks hanging over the Science and Technology Commission and Ding Gaoheng himself have been basically eliminated. Actually, when I first planned this event, I never thought it would be so successful. Chang Haonan is naturally in a good mood: Originally, I just thought that we could create a few brands from the relatively well-developed industries in our country, so as to leave a hook and pave the way for future development. Unexpectedly, the Japanese committed suicide and sent a big assist. Some countries even attacked more ruthlessly than us..." The country he mentioned as more ruthless than us actually refers to South Korea. ??If China is still making a fortune in silence, then Korean companies, which are already fighting with Japanese companies in the mid-to-low-end positioning, are completely blind. Speaking of which, what happened to the helicopter that Icefly cooperated with Eurocopter? ?At this time of summing up after the war, Ding Gaoheng suddenly remembered the NH90 project that was the trigger of this matter. Similar to our corresponding model Z-12, we have chosen Ice Axis Group as a new supplier, and the new No. 03 prototype is almost ready. Chang Haonan happened to meet Liu Hongbo, who had returned to China, before coming here this time, so he answered almost without thinking. Obviously, this efficiency surprised Ding Gaoheng: After all, the NH90 is nominally a military model. If we directly use our countrys suppliers, we wont encounter any resistance? Of course there is resistance, but after such a round of troubles, NSK almost exited the European market, and then Ice Axis Group took advantage of the situation and bought the RHP bearing brand from them, so that on paper it is considered a British supplier. ?Chang Haonan couldnt help laughing when he said this ?This RHP has actually gone bankrupt a long time ago and naturally has no production capacity of its own. So all the bearings of this brand are actually sent by Ice Axis and then rebranded... After going round and round, the NH90 still uses OEM bearings produced by Huaxia. After chatting about some light topics, Chang Haonan changed the subject: But having said that, the Japaneses defeat in Maicheng this time can be regarded as a wake-up call for us. All my strategies, in the final analysis, rely on the fact that the quality of their own products is not up to par, and they do whatever they can to reduce costs. Now it is our companys turn to gradually enter the European market, and we have to guard against this problem..." As soon as these words came out, Ding Gaoheng and Lan Xinzhi suddenly became serious. Chang Haonans concerns are obviously justified. In these years, enterprises in China, especially small and medium-sized enterprises, are engaged in counterfeiting... Not too optimistic anyway. If the barbaric development is really allowed to continue, it is not impossible to repeat the mistakes of Japanese companies. ?Especially when the other party must still be planning revenge. After a long time, Ding Gaoheng opened his mouth and said: In the next year or two, the export license approval procedures will be more complicated, and the goods themselves will also receive focus from the quality inspection department. The problem may not be too big. "But as our level of openness continues to improve, especially as we are about to join the WTO, administrative restrictions on exports must be relaxed. We really have to find other ways to restrict or regulate these enterprises. We cannot It ruined the image we had worked so hard to create..." Lan Xinzhi, who had not had his turn to speak just now, suddenly lit up: Is it possible to formulate a voluntary, non-mandatory certification system? Brands joining this system will have to undergo our more stringent quality inspection, which is equivalent to an endorsement. This way, even if some companies do not engage in personnel work, it will be convenient for us to cut off from them, so as not to cause a series of problems like NSK. We can consider..." In fact, his original idea was that the Equipment Industry Department would come forward to establish this system, but he realized halfway through blurting out that it sounded like a struggle for power, so he felt a little stiff for a moment. Fortunately, Ding Gaoheng and Chang Haonan are not unreasonable people, and they can also guess what he did not say later. You want the Equipment Industry Department to come forward to do this? The former asked with a smile. Uhright. Lan Xinzhi nodded awkwardly: My consideration is that companies such as Xingcheng Special Steel, Luozhou Group and Baoshan Iron and Steel have already had deep interactions with our department, so communication will be easier..." Chang Haonan, after some thought, shook his head: This idea is good, but it may not be appropriate for the Equipment Industry Department to come forward. "No matter what the actual situation is, the name of this department is, after all, the Equipment Industry Department of the Commission of Science, Technology and Industry for National Defense. Both in name and in essence, it is too close to the military and the military industry system, making it inconvenient to do business with foreign countries, especially with Western countries. " When he said this, the other two people also figured out this relationship: Its true Military industrial units have their own advantages and disadvantages, which are inevitable. Since you want to make other peoples money, you must try your best to dispel other peoples concerns. If the military industry system is not suitable... Ding Gaoheng sat up straight suddenly and looked at Chang Haonan: How about your Torch Group, together with the Science and Technology Commission and the Chinese Academy of Sciences, establish a non-governmental association or committee that is more research- and academic-oriented? (End of this chapter) Chapter 610 A third-generation machine that belongs entirely to China Chapter 610: A third-generation machine that belongs entirely to China Ding Gaoheng''s sudden suggestion made Chang Haonan confused for a moment. ??If we look at this matter alone, it is indeed a relatively safe approach to organize a certification system in the capacity of the Science and Technology Committee (now restructured into the Ministry of Science and Technology) and Torch Group. Although almost every practitioner in the machinery manufacturing industry is now well aware of the relationship between Torch Group and the Equipment Industry Department, or the Commission of Science, Technology and Industry for National Defense, at least in terms of the administrative system, the two are completely independent. ?This will not only ensure that the Science and Technology Commission has the necessary control over quality inspection and brand certification, but also make the military-industrial color of this system relatively light, reducing the concerns it will bring to overseas customers after entering the international market. ?However, for Chang Haonan himself, or the Torch Group, this can be considered a burden. On the one hand, at least for a long time to come, his main energy will definitely be on scientific research and project development. ??The purpose of establishing Torch Group in the first place was just to provide a good operating environment for the TORCMultiphysics software that requires long-term maintenance. ?Although the subsequent business scope gradually expanded, it still maintained a relatively lightweight operating model. The entire group, including the Torch-C.B. Ferrari joint venture, accounts for more than 85% of the business sector. It is a very exaggerated proportion. If you take on this big job, it will be necessary to organize a large enough independent quality inspection team. Otherwise, if you rely on a third party for quality inspection, it will be difficult to guarantee authority and independence. But this is not in line with the development philosophy of Torch Group. On the other hand, Chang Haonan, who has experienced the future, knows very well that this kind of so-called "civilian association" organized mainly by enterprises often changes internally in a short time due to the lack of rigorous organizational structure and effective supervision. It''s a mess. In the end, if it doesnt work well, it will not only fail to achieve the purpose of regulating the quality of the companys products, but it will also be counterproductive. "Director Ding, let me tell you, there is no need to be so secretive." After thinking for a moment, Chang Haonan said: "Our purpose is just to avoid the military-related nature of this certification system. It can be explained in a straightforward way. It is to use the Chinese Academy of Sciences or the National Ministry of Science and Technology as the certification body, and use the administrative power endorsed by the state to promote products. Standardization and improvement of quality. Now that our Equipment Industry Department has established a firm foothold, I think we dont have to worry too much about the rumors of so-called administrative intervention. Just do it. In fact, this idea of ??his was also tried in the original timeline. It is a national inspection-free product produced in accordance with the "Decision on Several Issues Concerning Further Strengthening Product Quality Work". However, there was something wrong with the direction of the efforts at that time. According to Chang Haonan''s idea, to promote higher-standard quality certification, there should first be a rigorous and more frequent testing process to enhance the brand value of certified products and enable them to withstand higher premiums, and then add more to this process. Earn back the cost. ??However, inspection-free products are actually equivalent to reducing the cost of inspection, embarking on a path similar to that of Japanese companies that reduce costs and increase efficiency to facilitate price wars. In the end, they became a fig leaf for some low-quality products. ?Of course, at this time in the last life, the problem of concentrated counterfeiting by Japanese companies had not yet come to light. On the contrary, it was still on the rise, and the confusion was indeed very strong. The situation today is completely different. According to the recent development trend of the whole world beating down lost dogs, I am afraid that it will not be long before the self-destruction of Japanese companies will be written into the textbooks of business schools and management schools around the world... Thats not the only thing Im worried about Ding Gaoheng did not immediately agree with Chang Haonan''s view. Instead, he held his face with one hand and explained while thinking: "The main thing is that we need a starting point for this certification system, so if your Torch Group is not involved in it, it will be completely independent of the Equipment Industry Department. Firstly, I am a little worried, and secondly, There will be some multi-party management problems..." At this point, the meaning has been made very obvious Outside the Science and Technology Commission system, apart from Chang Haonan, Ding Gaoheng could not be trusted. ?Thats right, although the former can enter the office of the director of the Science and Technology Commission at will and even participate in the leadership team meetings of the Science and Technology Commission on a daily basis, he is not a member of the Science and Technology Commission. As deputy director of non-staff positions, the focus is still on non-staff positions. Lan Xinzhi next to him naturally understood what Ding Gaoheng meant. Are you envious? Thats for sure. Being so unconditionally trusted by the leader is what every migrant worker dreams of. But he also knew that at this time, Chang Haonan must be given a thumbs up: Director Ding, if thats the case, wouldnt it be enough for Mr. Chang to take another position in the Academy of Sciences or the Ministry of Science and Technology? Speak in one sentence. Ding Gaohengs eyes lit up: Thats rightits not a bad idea. Although Lao Song has withdrawn from the second line, his influence in the science and technology industry is still there. Lets operate through him... Chang Haonans eyes were startled: Thisisnt good. ??If he hadn''t suddenly decided to come today, he might have felt that the two people opposite him were playing a double act. Whats wrong? Ding Gaoheng directly performed a beardless version of the beard-blowing glare: Very good! Thats it, Ill contact the Ministry of Science and Technology in a moment! After making the decision, he looked at the stunned Chang Haonan and comforted him a little: Dont worry, it just gives us a hand to use at critical moments. We dont need you to do anything at ordinary times, and we wont let you be the leader. The latter breathed a sigh of relief. ?If you dont take the blame, its not unacceptable. Thats okay. ?Chang Haonan reluctantly nodded. ?However, as soon as he said the words of agreement, he immediately understood what the danger of the world is. Also, although Mr. Changs Torch Group is not directly involved, I feel that as one of the most internationally renowned technology companies in China, we still have to borrow our name. Lan Xinzhis voice sounded from behind Chang Haonan: Why dont you just call this certification system Torch Project? The implication is that certified brands should be like torches, becoming the direction and example for other domestic companies to make products! It can also correspond to the Torch Plan of the National Science and Technology Commission, and the Ministry of Science and Technology should not refuse it. ?Chang Haonan opened his mouth several times, but he really didnt know what to say. The blame lies in the fact that I just agreed too simply. I didnt expect that there would be such a link later. In short, this matter is settled. ?After the incident of exposing the fraud of Japanese companies basically came to an end, Chang Haonan left the capital and came to Chengdu again after nearly a year. Compared with the past few times when he arrived in Chengdu, Chang Haonans business jet landed directly on the runway of Huangtianba Airport this time. ? Huangtianba Airport is a test airport belonging to Factory 132. Its nature is similar to Beiling Airport of Factory 112, so it saves the trouble of sending someone to pick up the plane from Rongfei. Mr. Song, Mr. Yang. ?Chang Haonan shook hands with Song Wencong and Yang Wei, who had been waiting on the tarmac for a long time: I came back this time to bring you a greeting gift! He said and pointed to a bulging briefcase in Zhu Yadans hand: Turbofan 10, the overall technical parameters of the Taihang engine, are in it! ??The other two people looked at each other and saw the excitement in each other''s eyes. The J-10 is the honor of every employee of Rongfei. It is a third-generation fighter jet that belongs entirely to the Chinese people. The only fly in the ointment is that it currently uses an imported engine. Although there is no risk of supply interruption in the foreseeable future, everyone is looking forward to replacing this last core subsystem with a domestic model. Now, this possibility has been placed in front of the two of them. (End of this chapter) Chapter 611 J-10A and J-10E Chapter 611 J-10A and J-10E "Xiao Chang, due to the weather in Qian Province, the comrades from Guizhou Aviation Industry said they would not be able to come here until tomorrow, so our seminar can only be postponed by one day. How about taking a look at the current progress of Project No. 10 today?" After a brief exchange of greetings, Song Wencong, as the host, immediately gave the next itinerary. ??The reason why we have to wait for someone from your aviation industry to come is because the test flight data about the DSI air inlet was tested by three JJ-9 prototypes, so it is all stored there. Engineering aircraft design ultimately requires a certain amount of actual measurement results, and it is impossible to rely solely on wind tunnel experiments. ??Moreover, the more one comes from a computing school like Chang Haonan, the more so. Its okay, Ive been dealing with the Taihang project during this time, and I really havent paid much attention to the situation on the host side. ?Such a big project, no matter how urgent it is, cannot be completed in just one or two days, so Chang Haonan readily agreed. In fact, when the plane landed just now, he saw through the porthole window two fighter jets with distinctive shapes parked on the tarmac on the other side. Sure enough, after simply completing some necessary procedures, the other two took Chang Haonan into a minibus and drove toward the distance. The 132 Factory is also considered a major manufacturer in the aviation industry system. Naturally, it is impossible to produce only a few J-10s. Therefore, Chang Haonan also saw many other very familiar models along the way. This even includes a J-7 equipped with a large delta wing and air intake on the nose. You should know that due to the emergence of the J-7F, even the J-7MG, which sold well in the previous generation, has almost no orders. Is the oldest J-7 still in production? Chang Haonan looked out the window and asked slightly surprised. Originally, production was supposed to have been discontinued, but the Sudanese Air Force lost four J-7Ns a while ago and needs to replenish its establishment. ?Xu De, deputy chief engineer of Factory 132, who was sitting in the row behind Chang Haonan, replied. He is also the deputy chief engineer responsible for the final assembly and production tasks of the No. 10 Project. He and Chang Haonan had a lot of business exchanges during the first ground test of the J-10, and they are considered acquaintances. "We suggested that they directly buy the J-7F or at least the J-7MG, which is more suitable for the low-altitude ground attack mission there, but the other party really couldn''t afford the money. We happened to have a few J-7II airframes, so we put the identification friend or foe device on them. The alcohol anti-icing device has also been dismantled and will be disposed of directly as scrap metal. " In the 1990s, Africa could even experience large-scale famine. For a truly third-world country, it was obviously not easy to save money to buy a few new planes. But speaking of which, what did the Sudanese Air Force do to lose four aircraft at once? ?In Chang Haonan''s impression, the opponent should only be equipped with a total of about ten or twenty J-7s and MiG-21s. Among them, the number that can fly must be even less, and they can fall four at a time... They couldn''t have collided while flying in formation, right? We dont know much about the specific situation. We only know that things are not peaceful there recently ?Song Wencong shook his head and replied with a slightly helpless tone: The separatist forces in the south are making a big fuss. A few days ago, I heard that the Americans launched two air strikes on the grounds that they supported the KB elements. I guess thats how the planes were lost..." After the end of World War II, the 1990s was the most difficult period for many small countries. ??The situation that the United States is the dominant player in the world cannot be changed in a short time. In addition, the Internet era has not really arrived after all, so small-scale air strikes like this will not even be reported in the news. Even Chang Haonan, a reborn person, would not have known about such a thing if he hadn''t asked about it by chance. This kind of thing is beyond our reach ?Yang Wei, who was sitting in the same row as Chang Haonan, also sighed. At this time, China itself has to make concessions to the United States in many places. After the disintegration, Mao Zedong still has the unreasonable idea of ??trying to join NATO, so... There is really no other way. Some things just dont make sense. If you fall behind, you will be beaten. This is why even if we focus on economic development, we must build a strong military. I just dont know where Sudan offended the United States this time Obviously, these people sitting in the car did not take the so-called "support for KB doctrine" seriously. ?However, this unintentional remark made Chang Haonan suddenly think of it. ?At the end of last year, Yan Zhongcheng was designing a turbojet 14 aeroderivative gas turbine for natural gas power generation for an oil and gas field project in Sudan. The reason why there was such an urgent project seems to be that General Electric suddenly stopped supplying the LM2500. The ostensible reason is that China may obtain spare parts for its naval LM2500 gas turbine through this order. But in fact, it was because Sudan suspended Chevrons oil field exploration and mining rights in the southern part of the country in 1994. And if we connect these things... It seems that it is not difficult to explain. ?It is well known that petroleum can breed mold. Fortunately, at this time, due to the Black Hawk downing incident, Americans still have a lot of psychological shadow on the Horn of Africa, so they should not send ground troops there to calm things down. The leader of the other side, Omar al-Bashir, is after all a ruthless man who personally participated in the Yom Kippur War. Judging from the fact that Sudan immediately came to Rongfei to replenish air force equipment, it seems that they have no intention of changing their development strategy because of this matter. But even so, its not an option in the long run Others are taking risks and pressure to give you this opportunity, but you, in turn, cannot protect the basic safety of the other person. ?In this case, before anyone chooses to cooperate with you, they must be more cautious. While thoughts were swirling, the minibus finally drove to the other side of the tarmac. Everyone got out of the car one after another. ?The two J-10 prototypes are parked here. ?One of the racks is covered with a classic camouflage tarpaulin. The other one is marked 1003, and it should be the No. 03 prototype that just rolled off the assembly line. Based on the data obtained during the test flight of No. 01, we made some technical adjustments to No. 03 during the manufacturing process. After all, according to our plan, this model will also go through the entire finalization process in the future. Chang Haonan walked closer to the aircraft and took a closer look. Sure enough, he found that the six reinforcing ribs on the air intake had been adjusted to look like the original mass-produced model. In addition to reinforcing it, it can also have some rectifying effect on the air flowing through this area. As for other changes visible to the naked eye, there are not many, only some details such as the landing gear doors. It should mainly be on the flight control system. "In addition, during the test flight, we found that under supersonic conditions, due to the pre-compression effect of the nose on the incoming flow, the part of the belly close to the body will form a bow shock wave, causing changes in the pressure gradient at different locations. Surface layer separation tends to increase. ?Song Wencong stood at the edge of the air intake, stretched out his hand and made a gesture on the upper partition: In this case, the J-7Fs mandibular air inlet does not exist because it is located forward. At present, whether it is a binary adjustable inlet or a pitot tube inlet, the inlet is designed at a certain distance from the belly of the aircraft, so it can avoid this shock wave position. But if it is a DSI inlet, this bow shock wave is bound to have an impact on the air intake, further degrading supersonic performance..." Obviously, after determining the improvement plan for the J-10, Rongfei has already started some technology research and development work in advance. As a fighter jet, although its supersonic performance is somewhat inferior, it should not be too outrageous. ?Especially when the supersonic orientation of the turbofan 10 is specially optimized, it would be a bit of a loss if flaws arise in the design process of the aircraft body. It is really not easy to solve this problem solely by the bulging design of the DSI air intake. ?Chang Haonan patted some dust on his hands that had just been touched by touching the air intake: So it may be necessary to add several vortex generators to the lower edge of the inlet to interfere with the generation of this bow shock wave in advance. As he spoke, he raised his hand and gestured to the air intake of the plane in front of him: The principle is somewhat similar to these six reinforcing ribs. The structure is very simple, but the design requires some calculations. When the comrades from Guihang bring over the test flight data of the JJ-9 tomorrow, we will make detailed considerations. (End of this chapter) Chapter 612 The collision of ideas between two wall hangings Chapter 612 The collision of ideas between two wall hangings ??The reason Song Wencong specifically brought up the topic of bow shock was mainly because he was worried that the treatment of this place would affect the overall project progress. ?After determining the follow-up improvement direction of the J-10 with Chang Haonan last year, the Project 10 project team did not wait for support, but quickly began to carry out some pre-research work based on the existing two prototypes. Because wind tunnel testing alone cannot fully restore all phenomena that occur on real machines. Although the JJ-9 has a lot of flight hours, the supersonic capability of that model can basically only be used to provide students with flight experience. It is difficult to find practical problems with the DSI inlet under high-speed flight conditions. . ?Moreover, it is designed with air intake on both sides, so it is not easily affected by the pre-compression of the incoming head. In this way, we discovered the problem of enhanced boundary layer separation induced by bow shock waves that had not been paid attention to in the past. ?Those who often work on projects will know that the simple and complicated parts are not terrible. The most troublesome thing is that a problem suddenly appears halfway through the project that has never been considered before. It is very likely that a single incident will affect the entire project, and may even cause the entire project to be drastically changed or even terminated directly. ?Although the current trouble is not that big, as long as enough time (and computing power of course) is given, it can be solved anyway. But what Project No. 10 lacks most right now is time. So, Song Wenchong had even made a plan. ??If it really cannot be done in a short time, then let Project 10 serve in its current structure first and solve the problem of the Air Force''s lack of third-generation fighter jets as soon as possible. As for the improvement ideas proposed by Chang Haonan, we can talk about it later. In any case, the size of the Chinese Air Force is not small and can accommodate enough sub-models. ?However, now that they heard Chang Haonan give out the solution almost without thinking, everyone around him immediately felt at ease. This at least shows that the former has been mentally prepared for this. So...Comrade Haonan has already studied such technical details? Compared to others, Yang Wei, who was standing next to Chang Haonan, had more disbelief in his tone: This forward-looking and foresight is really admirable... Wellits not really foreseeable, its just a coincidence The former was so praised that he quickly waved his hand. Then, he saw several curious eyes around him. After a short pause, he had to explain: I published a paper on the mandibular adduction airway two years ago. You should know it, right? The other people naturally nodded their heads. ?Although everyone has been a veteran of Project 10 since the beginning (except Chang Haonan), no one has personally participated in the development of the J-7F. But the article "Research on the Integrated Layout of Dual-Module Mandibular Inward-Turn Inlet/Conical Forebody" is a classic document of computational fluid dynamics, and Lu Yuying specifically mentioned it in many conferences for a while. Ive definitely seen all the content. "Actually... I discovered at that time that if the position of the inlet is further modified, when it reaches the belly position, after the incoming flow speed exceeds the factor, the boundary layer will be very unstable, and it will become unstable with a little interference. will be separated." "I see" ?Song Wencong also suddenly realized: No wonder you designed the combination of the conical front body and the air intake to be so... special. It turns out that the key point is this..." ?The so-called special is naturally a euphemism for ugly. I must admit that the design of the J-7F is indeed not considered well in terms of appearance. Is this... Actually, Chang Haonan just found a random reason. Actually, he knew about the bow shock wave because he had read relevant technical information in his previous life. As for the solution, I really only started thinking about it after coming into contact with Project No. 10. Because the J-10 solved this problem in the last generation around 2010, with the computer computing power at that time, when solving the shape of the DSI air inlet cocoon, it was even possible to directly add one more degree of freedom for optimization. But now we dont have this condition, so we can only use some tricky methods. Who would have thought that after just one operation, even Song Wenchong would feel a little enlightened. But it was impossible for him to tell the truth, so he had to skip the middle process and concluded vaguely: In short, I have been studying this issue since that time. Later, when I participated in the 83rd Project to improve the wings of the aircraft, I came up with the idea of ??using vortex generators to delay the separation of the boundary layer. Moreover, in addition to this main function, a well-designed vortex generator can also improve the flow field quality at the inlet outlet and reduce the total pressure distortion at the inlet of the turbofan engine. This part of the content can be said to be watertight. On the one hand, the technicians around Rongfei dont know what happened in the 83rd Project. On the other hand, there is indeed some theoretical connection between the vortex generator and the wing knife... ??If you have to force it hard, thats okay. ifies As his words fell, a uniform sound of inhalation suddenly sounded around him. You should know that although Chang Haonan, including those closest to him, such as Ding Gaoheng, Du Yishan, etc., are a little numb to these things, others are not yet. From the perspective of others, doesnt the explanation just shown mean that others began to think about such complex issues in their junior year? ??Isn''t that why the strong men of Douzong are so terrifying? This joint is actually not easy for Chang Haonan to figure out. ?However, he also felt that he should change the topic. Fortunately, Yang Wei next to him gave an assist at this time. After all, his evolution is quite outrageous to some extent. It is naturally easier to accept similar people if they see similar people. Therefore, while others were still shocked by Chang Haonan''s inhumanity, he had already begun to follow Chang Haonan''s thinking and consider technical issues: From a qualitative point of view, on the one hand, the vortex generator enhances the momentum exchange between the low-energy fluid near the wall and the mainstream to achieve the effect of inhibiting separation, but on the other hand, it also increases the inlet resistance loss, which is considered a design The choice? Seeing that Chang Haonan finally returned to the technical topic, he secretly sighed in his heart that he was worthy of being a real boss. The agility of his thinking was close to physical cheating, and he nodded immediately: "It is indeed the case. At supersonic speed and high incoming flow Mach number, the shock boundary layer interferes seriously, resulting in large flow separation. At this time, the benefits brought by the vortex generator to suppress separation are more obvious, which is reflected in the total pressure recovery coefficient Its just a small loss. Correspondingly, when the incoming flow Mach number is low, the separation is relatively small, and the resistance loss of the vortex generator is more obvious, which is reflected in the greater loss in the total pressure recovery coefficient. So, the design of this vortex generator and the selection of parameter indicators are very important. Fortunately, the total pressure recovery coefficient of the DSI inlet at low speed is almost at a surplus level, and we dont care about a slight loss, so the optimization window is not Its pretty strict. Also, under certain incident angles of electromagnetic waves, the eddy current generator will increase the radar reflection area and destroy the stealth performance. The problem of invisibility is not big Another deputy chief designer next to him smoothed his gray hair: "Although the DSI air intake can reduce a certain amount of RCS, if the overall design does not systematically consider low detectability, the benefits brought by just a few detail corrections are not large, so I don''t care about this percentage. A few changes. Its just...I was just thinking about whether I could apply similar ideas to other models. It seems Im going to keep it simple..." ?These sentiments immediately attracted a wave of recognition. ?However, Yang Weis focus is obviously at a higher level than others: Wait a minuteif you think about it from another angle According to our current usual method, the comprehensive distortion index only includes circumferential distortion and turbulence components. However, in the design of DSI inlet including vortex generators, radial distortion and swirling distortion also need to be systematically considered. situation. Perhaps, we should take this opportunity to change our design habits... (End of this chapter) Chapter 613 It feels so good to have so much power! Chapter 613 The feeling of being full of power is so refreshing! ?This level of change, although it cannot be said to upgrade the entire standard, will indeed bring great convenience to the design work. You must know that aircraft design is actually a very complicated job. In addition to people like Song Wenchong, Yang Wei, and Chang Haonan who do the overall design, there are actually many people who are rarely noticed and are responsible for subsystems or more detailed parts. technical staff. They may not have particularly high talents or incredible abilities, but they are the backbone of a project. To a certain extent, it is also the decisive step of a project. Chang Haonan before his rebirth should be considered a relatively important one among this group of people. This improvement in design methodology is of great significance to them. This can naturally improve the work efficiency of the entire project team. Of course, this aspect of work does not require Chang Haonan to do anything. There will be people from Rongfei Group who are responsible for standardizing design methods. ?If the effect is good, it will gradually be promoted to all units in the aviation industry, and will eventually become a standard when the next standard is updated. Its like digital design and pulsating production lines. ?This is also the benefit of the entire aviation system maintaining a national chess game. ??If we really follow the method of the previous generation and split the aviation industry into the first group and the second group in parallel, differences will naturally and slowly arise in many places. ?It will only increase a lot of internal friction. Even if we want to merge back in the future, it will be a troublesome thing. Speaking of which, the No. 04 prototype has also entered the final assembly process. Do you want to go and take a look? ?Xu De, who had not spoken for a long time, suddenly suggested. After all, he is the deputy chief engineer in charge of aircraft production. Although it is impossible for him to know everything about design at this level, he still can''t say anything in front of Chang Haonan and Yang Wei. No. 04... your speed in building prototypes is quite good... ? Its only been one year since its first flight. Excluding the No. 02 aircraft used for static damage testing, there will be a third aircraft available for test flight soon. "Well...the state''s overall allocation to the aviation industry has increased a lot this year. For key centrally managed projects like our No. 10 Project, this year''s budget has increased by nearly a quarter on the original basis. Naturally, we need to have sufficient funds..." Song Wencong replied from the side. Although the person directly managing the project budget should be the chief engineer Xue Chishou, the chief designer is definitely aware of the expenditures. After all, not every project can save money by relying on unparalleled efficiency like Chang Haonans The expenditure characteristics of turbofan 10 and die forging presses are that the funds originally expected to be allocated in five years are concentrated in two years, and then the results are quickly withdrawn. ?If this method of burning money was left in the hands of others, the budget department would be frightened to death. When talking about this topic, Xu De suddenly became more energetic: Yes, I can feel that the above-mentioned views on the aviation industry are gradually changing, especially the financial system, which has gradually regarded us as a short- and medium-term effective investment from a bottomless pit of burning money..." At this point, my colleagues across the country have to thank Comrade Haonan... It can be said that everyone in Rongfei is most aware of the problem of lack of money. Now, although I am not at the point where I can spend it freely, but compared to the past when I wanted to break every penny in half, and even the chief engineer took the lead in setting up stalls selling noodles to make a living, it is really better. Don''t know how much. Hence, the tarmac was filled with happy air for a while. In fact, there is nothing interesting to see in the assembly workshop, because the prototypes are all produced in a single frame, and each frame may be different, so no cutting-edge assembly technology is used. It''s just that since Xu De mentioned it, it was difficult to refuse based on emotion and reason. Just treat it as part of the visit. The real highlight was the Project 10 Category II prototype technical seminar on the second day. Since the Air Force has not officially named this equipment theoretically, it is Rongfeis current internal official name. Correspondingly, the version that uses a binary adjustable inlet and is currently undergoing test flights is naturally called a Category I prototype. ?Of course, in general situations, they are simply called J-10E and J-10A. ??The Guihang Industry team led by Sun Huizhong arrived on a chartered flight the next morning, and were then picked up as quickly as possible and taken to Rongfei. Mr. Song, Mr. Chang, and Mr. Yang, Im so sorry for wasting everyones time. After entering the door, the leader Sun Huizhong shook hands with the person in charge of Project No. 10 one by one. It doesnt matter, everything happens for a reason. Besides, the project is not rushed. Song Wenchong immediately said it was okay. "Yeah, it just so happens that I haven''t been to Rongfei for more than half a year, and I still had half a day to look at the changes here yesterday." Chang Haonan also added. Following that, on the way to the seminar, we talked about the situation of Guihang Group: By the way, Mr. Sun, I was at the Air Force Aviation School before, and I heard that they seem to be preparing to purchase a new advanced training aircraft. Is there any news? When mentioning the matter of JJ9, Sun Huizhong, who was still a little tired, his eyes suddenly lit up: Yes, I wanted to call you to thank you for this matter before, but you were not in Beijing at that time, so I couldnt get in touch... There is currently a batch of 26 aircraft ordered there, 6 of which are the same version with formation indicators like the Bayi Performance Team, and the delivery time is very fast..." After some greetings, the participants came to the venue one after another and sat down according to the tasks they were responsible for. Chang Haonan noticed at this time that Lin Tongxin, who had followed Sun Huizhong to the capital before, was also following him this time, and he also had the title of deputy director of the research laboratory. Apparently the pace of progress is rapid. ?Of course, it also reaped the dividends that no one could use in the past two years of Guihang Group. Those who participate in this kind of technical meeting are all their own people, and there is no need for any opening remarks. After Song Wencong briefly talked about todays theme, the microphone was handed over to Chang Haonan. Comrades, before discussing specific technical issues, let me first give a general summary of the improvement plan for the Category II prototype. ??As he spoke, he flipped through the PPT on his computer and showed a rough rendering. After a brief silence, the audience was in an uproar. "this" Compared with our current Class I prototype, this plan is a bit different Yes, without going into more details, the shape of the nose and the wings have been slightly changed. ??The technicians sitting below couldn''t help but whisper. Even people like Song Wenchong and Yang Wei, who had heard Chang Haonan draw cakes before, were a little surprised. ??Although the overall appearance still maintains the characteristics of the J-10 - wing-body fusion, mid-range coupled canard + large delta wing, belly air inlet, single engine and single vertical tail, obvious wasp waist structure... But upon closer inspection, the difference is not small. ?Although the overall size is still the same as before, the entire aircraft has become fuller. Especially the cross-section of the fuselage has changed from an approximately perfect circle to an oblate shape that is wider on the left and right. Even a little bit like the Typhoon fighter. The advantage of doing this is obvious, that is, while the measurements remain basically unchanged, the usable volume of the aircraft becomes larger. ?But thats the price...its obviously fatter. Comrade Haonan ?Song Wencong felt a little sweat on his forehead: "You...didn''t say you wanted to be so ambitious..." He spoke in a very low voice, obviously worried that the words would be heard by the people below and would affect their confidence in their work. And this aircraft, I think, must be at least hundreds of kilograms higher than the current design empty weight, plus the drag increased by changing the area ratio..." ?Yang Weis eyes also trembled a little: Although our aircraft is a medium-sized aircraft, we cant completely give up supersonic performance, right? At this time, Chang Haonan finally continued to speak. Not just to the other two chief divisions, but to everyone on site: I know what your concerns are now. Speaking of this, he directly turned the PPT to the next page: Just at the end of last month, the domestic turbofan 10 engine expected to be equipped on the Class II prototype aircraft has completed parameter calibration. The first mass-produced model, the turbofan 10A, has a maximum thrust of 13.2 tons at sea level. The specialized single-engine model, the turbofan 10B, has been specially adjusted to increase the maximum thrust at sea level to 14 tons, which is a 12% increase compared to the current AL31FN, and has been specially optimized for high-altitude and supersonic thrust. " So, dont worry too much about the flight performance after the modification! (End of this chapter) Chapter 614 The heart of the Chinese fighter Chapter 614 The Heart of the Chinese Fighter This time, when Chang Haonan finished speaking, the entire venue fell into almost complete silence. You can even clearly hear the uniform swallowing sound. When the J-10 was originally designed, we did consider using the turbojet 15, which is a domestic model that imitates the R29 (the engine of the late MiG-23). However, after entering the formal research and development process in the late 1980s, the target installed power soon changed to the AL31FN, which is more realistic, has better performance, and is basically the same as the Su-27, another third-generation aircraft equipped by the Air Force. Although it was just a standard third-generation turbofan engine, to the Chinese aircraft designers at that time, this engine with a military thrust of 7.5 tons at sea level and an afterburning thrust of 12.5 tons was definitely considered a It was a dream come true. You must know that the best engine China had installed and used at that time was the Spey imported from the United Kingdom. It had a thrust of 9 tons and the actual thrust-to-weight ratio was even less than 5. ??This is the result of specially optimized sea level data. The available thrust after installation is even lower. ?In this way, the JH-7 finally built has been regarded as the model with the best air combat performance among Chinese domestic aircraft for a long time. ? It wasnt until the J-8C entered service two years ago that there was a fighter aircraft that surpassed the fighter-bomber. And its supporting power, the turbojet 14 that has now been installed on several other models, also proves that China has the ability to design and manufacture a high-performance aviation engine. ?However, the Turbojet 14 can only be regarded as a second-generation mid-range thruster after all, and does not meet the basic requirements of Project 10. In short, for the technicians present at the scene, before today, the upper limit of engine performance that could be achieved in their concept was the AL31FN, which is currently installed on two prototypes. Including the Taihang engine, when it was originally planned, it was also a model with basically similar performance and could be replaced in situ. but What is going on today? Why is it different from what was promised before? On the PPT page that Chang Haonan turned to, a table and two performance curves clearly show the difference between the turbofan 10B and AL31FN. Simply put, it means to be surrounded in all directions. Except for the slightly higher afterburning fuel consumption caused by increasing the afterburning thrust and afterburning speed, all performance advantages are visible to the naked eye. In fact, if we use the slightly lower thrust turbofan 10A prepared for the J-11 for comparison, even the afterburner fuel consumption will be significantly lower than that of the AL31FN. You must know that the latter is already a third-generation engine whose performance orientation is obviously towards supersonic and afterburning conditions. ? Even F110-GE-129EFE and AL41, which are half a generation ahead, dare not say they can surpass them in this regard. What''s more, the military thrust of turbofan 10B is also 8.4 tons. Compared with the current model, it is also an improvement of more than 10%. means that although this model has enhanced high-speed working conditions, it still maintains a fairly balanced performance. In other words, compared to those third-and-a-half-generation engines that have exhausted their potential, the turbofan 10 in front of us is basically on par with performance on paper, but it has not yet begun to exert its power... Before today. Before Chang Haonan just cut out this page of PPT. Who would have thought, or who dared to think, that China could have a three-and-a-half-generation aircraft engine at its fingertips? Although aircraft design is a complex system engineering, it cannot simply be assumed that the better the power, the better the performance of the final aircraft. But a high-performance aviation engine will definitely bring a higher degree of freedom to the entire project, allowing aircraft designers to maximize their talents. Like a fish entering the sea, or a bird ascending to the sky. ?This feeling of being free from restraint highlights a sense of comfort. About two minutes passed, and still no one spoke in the entire venue. ?No one wants to break the feeling of happiness that everyone is immersed in at this moment. "This military thrust... only one for Project 10 is probably not enough, but if two are installed on Project 11, would it be possible to cruise at supersonic speeds..." After a long time, Song Wencong finally broke the news. The silence went on for far too long. ?However, he still chose a slightly less relevant topic as an introduction. ?Although it is also related to technology, it is not my own project after all, so it will be much easier to talk about it. Chang Haonan pondered for a moment and then shook his head: "If I must say it, at certain specific altitudes and with clean mounts, it is possible to reach a flight speed of about Mach 1 without using afterburner... This is not to mention the twin-engine J-11, even the J-10 is possible. accomplish." "When designing this engine, I took into account that the aerodynamic design of the third-generation aircraft was not optimized for long-term supersonic flight conditions, so I still had to take into account the subsonic conditions in most cases, and there was no way to avoid it. The afterburning speed under afterburner is set too high, otherwise the economical fuel consumption of the aircraft will not be improved, thus affecting the available combat radius. This is even more important for medium-sized aircraft like our Project 10. " "For example, the American F22 has a lower combat radius and can use their hundreds of aerial tankers to make up for it. Our Chinese Air Force cannot have such a large tanker fleet in a short time, so... maintain a basic The voyage is still necessary. After such a round of questions and answers, the entire conference room finally returned to its previous working state. Comrade Haonan, is this engine...sure that it can catch up with the time limit of our No. 10 Project? ?Someone below raised their hands and asked. Chang Haonan, who was sitting on the stage, just smiled. Over the past two years, this has been one of the questions he hears most often. ?The most fearful thing is having hope that is dashed later. Just as what workers hate most is the boss who has made plans but cannot realize them. Originally, if I had been using AL31FN all the time, I would not have felt anything. ??But after seeing the data of the Turbofan 10 on the PPT, some people are even thinking about whether it can be used as a power to develop a fourth-generation fighter. It would be too uncomfortable to use the old model again. So, its normal to have this sense of disbelief. ?So, he adjusted his sitting posture and replied solemnly: Dear comrades of Project 10, the reason why I chose to come here at this time is because the overall design of the turbofan 10 engine has been determined, and each component has completed trial production and component-level testing. In other words, the performance indicators reflected above are not empty design parameters, but... have been verified. The parameters of the final product may still have some fine-tuning, but it is unlikely that there will be any major changes. The calm and serious tone makes Chang Haonan exude a natural confidence when speaking. This kind of self-confidence will also subtly infect other people at the scene. Unconsciously, everyone seemed to be sitting a little straighter than before... Also, I can reveal a little more. ?Chang Haonan glanced at the crowd at the scene, paused briefly, and then continued to add: At present, all parts of the turbofan 10 can be produced in our country, so... there is no need to worry about supply interruption during production. "Actually, the only problem currently is that domestic refining and chemical companies cannot immediately produce aviation fuel of high enough standards that meets the requirements of this engine... Of course, I have also reported this issue to the logistics department, and they promised The problem will be solved within two years. When he said this last sentence, the atmosphere that had gradually become tense relaxed again, and even burst into bursts of laughter. In short, regarding the issue of power, you can rest assured that I, as well as my colleagues in the aerospace engine power field, can provide a strong heart for our third-generation aircraft! Chang Haonan said as he turned the PPT to the next page and returned to the overall design of the Type II prototype of Project 10. Its just that this time, no one will question the feasibility of this improvement idea. Everyone can already foresee that a fighter jet that is more advanced and more comprehensive than the original one will be born in their hands. (End of this chapter) Chapter 615 real hexagon warrior Chapter 615 The real hexagonal warrior After no longer worrying about power, when I look at the schematic diagram of the aircraft on the PPT, the feeling is completely different. There are no shortcomings, only advantages. If I have to say it, it is because as the aircraft becomes larger and heavier, the flexibility or agility will inevitably decline. Moreover, after losing the area rate design that was almost the theoretical optimal solution in the past, the maximum speed on paper will be reduced. There may be some reduction. But because of the larger thrust engine, there will certainly not be any major deterioration in overall mobility. Times have changed, my lord. ?? Today is no longer the age of machine gun fighting, and the loss of agility is not important at all. Then, lets continue to look at the improvement plan of this Category II prototype. "First of all, the most obvious improvement part is naturally the air intake. Regarding the overall design idea of ??this part, I have discussed it with Mr. Song and Mr. Yang before, and since last year, I have been working on it with the help of my brother units. Research in related fields is laid out below. "This time we also invited Chief Engineer Sun Huizhong from Guihang Industry. He will serve as a member of the No. 10 Project design team in the subsequent design process..." Hearing his name suddenly being mentioned, Sun Huizhong''s face showed an expression of shock and a bit of surprise. He quickly stood up, turned around and greeted the venue behind him. ?Originally, Chang Haonan actually wanted Song Wencong to talk about this matter, but the latter said that it was Chang Haonan''s intention to leave this part of the work to Guihang and not to take credit for others. ?This is where the seemingly random sentence just came from. ?For a project like Project 10, which involves many systems and departments, except for the core leadership members, many people are not familiar with each other at all. This is especially true for people like Sun Huizhong who joined midway. If integration into the team is not smooth, it is easy to appear like an outsider here to pick peaches. ?For example, when the production of JJ-7 was handed over to Guihang, it was not without objections. After all, Rong Fei himself was so poor at that time that he was about to lose his pants. It would be much better now to be mentioned casually like this in the middle of a technical seminar. After all, if we hold another useless meeting just for this matter, it will become a burden for everyone. ?After introducing Sun Huizhongs situation to everyone, Chang Haonan quickly returned to the topic: "The results of the actual installation test of the DSI inlet are finally reflected in the JJ-9 advanced trainer aircraft that has been designed and finalized and has been sold domestically and exported almost simultaneously. The data collected during the test flight of this model will be used On the follow-up research and development of Project No. 10. "According to the current test flight and extended data calculation results, when the DSI inlet flow Mach number is 1.2 and below, the pressure coefficient on the lip bulge surface is symmetrically distributed along the center line of the bulge, and the pressure gradient is obvious, and at different times The cross-section has the characteristic of increasing along the main flow direction, and the bulge configuration has a significantly stronger effect on boundary layer cleaning than the current binary adjustable inlet. " "After Mach number 1.4 is exceeded, the ability to clean the boundary layer on the bulge surface will decrease sharply, and the separation of the boundary layer will be strengthened, which will cause greater intake pressure loss and distortion. It is expected that after the use of the vortex generator, the This obvious turning point extends beyond Mach 1.8. Of course, the specific design details still need to be determined by the comrades responsible for the air intake design based on the actual situation, but I already have a relatively mature design method here, so I dont have to start from scratch. As soon as this sentence was finished, there were several weak, slightly thankful exclamations from below. Obviously, the intensity and difficulty of such work are much lower than their previous expectations. "However, considering that there are already heavy-duty aircraft and special interceptor aircraft in the future air force equipment sequence, the J-10 does not need to undertake high-speed interception tasks, and under common combat loads, it is difficult for the aircraft to reach speeds above Mach 1.8. Therefore, this kind of performance calibration is not a problem for a single-engine medium-sized aircraft. At this point, Chang Haonan also paused for a moment. On the one hand, it is to let the people below absorb the content. On the other hand, it is also to take the opportunity to drink water and turn the PPT to the next page. Its still the same plane, but the view has been switched to the belly part. "It can be seen from the first schematic diagram that the three-dimensional dimensions of the new design have basically remained the same, but the cross-sectional shape of the aircraft has undergone relatively large changes. Although this has increased a certain amount of resistance, it has also improved the The area of ??the belly part, and the internal volume of the fuselage. In the original design, the aircraft only had a total of 7 main hardpoints, of which only 4 could carry weapons and ammunition. Although composite pylons can be used to increase the loading capacity, it will still limit the multi-purpose performance of the aircraft. "After modification, the original belly centerline pylon can be divided into two, the fuel supply system here can be canceled and replaced with electrical wiring. If necessary, the air inlet between the main and auxiliary landing gear can even be installed. On the side edges, two more light-load racks are added specifically for air-to-air ammunition. ?PPT is indeed a good thing, as it allows Chang Haonan, who is not good at drawing, to no longer pollute his and others eyes with chalk and blackboard. ??With just a click of the mouse, the new pylon arrangement is displayed on the bottom view of the aircraft. Mr. Chang. Taking advantage of this opportunity, an engineer sitting in the first row below raised his hand and asked: Two mid-range air-to-air bombs, plus the corresponding pylons, weigh about 400-450kg. Will adding such a weight to the side edge of the front half of the inlet affect the strength of the lip? His concerns are clearly justified. After all, in the existing design, the main function of the six sticks connecting the air inlet and the body is to strengthen the structure... "This issue was considered at the beginning of the project planning. At first, we planned to carry out additional reinforcements at the joints, but later we found that the DSI air intake itself can reduce the mass of nearly 300kg compared to the binary adjustable air intake. Therefore, It wont make that big a difference over and over again. The part that really needs to be properly handled by the comrades involved in the structural design is how to arrange the electrical circuits required for the two hangers in the outer wall of the air inlet..." "In other words...the belly part of the fuselage is not going to be used to arrange the auxiliary fuel tanks?" Thats right. Chang Haonan nodded directly: The original planned auxiliary fuel tank in the belly of the fuselage is only 900 liters. After modifying the fuselage, the fuel volume in the fuselage is expected to increase by about 1,100 liters, which can completely cover the 900 liters of fuel in the belly auxiliary fuel tank. In this way, the prime position between the two landing gears is reserved, and two air-to-surface weapons that are relatively large in size and weight can be mounted. Placing the large mounts closest to the centerline of the aircraft, compared to arranging them under the wings according to the conventional plan, although the total weight does not change, the moment of inertia of the aircraft is smaller, so it can maintain higher maneuverability. " At this point, those who responded quickly have basically understood what Chang Haonan meant. What Comrade Haonan means is to transform our Project No. 10 into a multi-purpose fighter that can be compatible with various types of missions... ??Yang Wei looked at the design plan projected on the screen and pointed out the key points. Its not just the application of a certain technology. Its a change in thinking. Yes, a true multi-role fighter. ?Chang Haonan immediately expressed his affirmation and then began to describe his overall thoughts: Although technically speaking, the current J-10 is fully capable of this, but from the overall layout, it is not suitable for performing tasks such as battlefield interdiction or stand-off air strikes. Of course, considering the current struggle situation we are facing, a medium-sized aircraft that is biased towards pure air superiority and focuses on agility does indeed meet the needs of the aviation force. However, with the continuous development and progress of our Peoples Air Force, it is actually just around the corner to transform from a purely homeland defensive force into an offensive and defensive air force, or even an offensive air force. "An aircraft with limited range and mounting capacity will definitely find it difficult to adapt to the increasingly complex combat scenarios of the People''s Air Force in the future. The vitality of a model of aircraft depends to a large extent on the extent to which its basic design can to meet the needs of users. Thats why I came up with such a preliminary plan. I hope that the Project 10 can truly become an all-round model with no obvious shortcomings in the size of a medium-sized aircraft! In fact, from the beginning when he participated in Project No. 10, his goal was to make this aircraft surpass the F16 in all aspects, not just in air combat performance. However, before the performance of the turbofan 10 is truly determined, this matter is indeed difficult. So he never stated this goal. The J-10 in the previous generation was chosen due to limitations in technology (the weight was inherently too large and the engine thrust was not enough) and vision (no one could have imagined that the Air Force would have thousands of third/fourth generation aircraft in more than ten years). It adopts a single-function technical route that is partial to short-term advantages. But the problem is, excluding the special scenario of carrier-based aircraft, medium-sized aircraft cannot beat heavy-duty aircraft of the same technical level in any aspect other than cost. So whether it is the F16 or the J-10, the "light" part of the light-heavy combination will eventually tend to do dirty work (licking the ground). ?However, when the Air Force really used the original J-10 to do odd jobs, it found that it seemed not suitable for dirty work... There have even been famous scenes of using asymmetric mounts, with air weapons on one side and air ammunition on the other side. Although it is not impossible to use, it is very awkward to use. Now that the more powerful turbofan 10B has emerged, it can naturally solve this problem without any worries and create a true hexagonal warrior! (End of this chapter) Chapter 616 The military industry system also wants to make a comeback! Chapter 616: The military industry system also wants to make a comeback! ?In large-scale meetings like this, where representatives from all research directions within the project team are required to attend, in fact the focus has never been on technical details, but on unifying R&D ideas and technical routes. ?Especially like now, if the project undergoes major changes in the middle of its progress, it is even more important for all participants to have a basic overall thinking. You dont necessarily need to understand it deeply, but you must at least know in which direction you are working hard. Otherwise, it will be troublesome if you get confused. So, todays technical seminar, after introducing the overall idea, is almost over. ? ?Song Wencong will naturally be responsible for the subsequent overall design modification work, while Chang Haonan, like Sun Huizhong, is mainly responsible for the design of the new air intake and the corresponding flying engine matching work. I was watching the news some time ago, and it was said that widespread quality fraud in Japanese machinery products was reported in Europe? After the meeting, Chang Haonan walked on the way to the canteen with several other people. ?Sun Huizhong was the first to break the silence. In recent times, several official media have been reporting on this matter continuously, and it is difficult not to know. Speaking of this topic, Song Wencong immediately picked up the topic: Thats what happened, and two days ago, the head office issued a special document asking us to thoroughly investigate all suppliers involving Japanese companies, and even second-tier suppliers including Japanese companies must not be left behind. The purchasing department has been up all night for this matter. Before Xiao Chang arrived here yesterday, he had just listed the list of companies that needed to be checked and the specific risks involved. Back there, the quality inspection department is probably also busy... Yang Wei, who was walking next to him, took advantage of the situation and said: By the way, Mr. Luo flew to Beijing on a business trip the day before yesterday. It seems that he also wanted to participate in some kind of quality management training. It was said that all state-owned enterprise leaders must participate in batches. Speaking of this, he looked at Chang Haonan beside him: I remember that Comrade Haonan should also hold the position of general manager of Torch Group? Chang Haonan nodded: Strictly speaking, I am still the acting general manager Several other people naturally know what is going on. No one would really regard Chang Haonan as an acting leader. Its nothing more than waiting for him to officially join the work. As soon as Chang Haonan finished speaking, Xu De, who was walking a little behind, suddenly became energetic: So, Mr. Chang, have you participated in this training? Is there anything in particular that we should learn from? ? Last year, prototype No. 1001 was almost damaged during ground testing due to poor production quality. Even thinking about it now, it makes him feel scared. Although Yang Baoshu and Xue Chishou were ultimately responsible for the incident, and considering that it did not cause any loss or impact on the schedule, no substantive handling was carried out. As the deputy chief engineer in charge of production, Xu De still felt very sad in his heart. care about this matter. During the production of the next two prototypes No. 03 and No. 04, in addition to adding new quality inspection procedures in accordance with the requirements of the "Quality Culture Month", he also began to pay special attention to quality management and risk control, hoping to Quality problems are eliminated on the production line, reducing waste caused by high failure rates. Its just that, after all, its one persons exploration, and a set of reliable standards or theories has not yet been formed. I...have never participated in... Looking at the excited Xu De, Chang Haonan organized his language a little: On the one hand, our Torch Group headquarters is not involved in any manufacturing industry. The only product is software, and theoretically it has not been released yet. On the other handthis training course It was organized by me Xu De''s originally smooth steps stopped at that time. He didn''t know what to say for a moment. ?But it seems quite reasonable when you think about it. After all, Chang Haonan discovered the original problem of prototype No. 1001 first. "Hiss... It seems that Mr. Luo mentioned it before. The training he went to participate in was called the Torch Project... It has the same name as Comrade Haonan''s company..." Obviously, the operations of Ding Gaoheng and Lan Xinzhi are effective. Although the Science and Technology Commission also launched a Torch Project with the same name more than ten years ago, now, especially for companies engaged in industrial design or machinery manufacturing fields, when hearing the name Torch, the first reaction is definitely Chang Haonans Torch Group ??However, the English translation of this project is "HUOJU". The name is used internally to gain traction, while externally it is changed to Chinese pinyin to avoid policy risks... A win-win situation, a win-win situation. "This... is all a coincidence. Although I did participate in this plan, it has nothing to do with our company..." ?Chang Haonan had no choice but to explain the whole story. That is to say, after Japanese companies encountered Waterloo, we here learned from others lessons and ensured product quality. Mr. Chang knows the details of this matter very clearly... ? Sun Huizhong, who initially brought up this topic, said it with some unfinished meaning after listening to it like a story. ??Although in the past two days, several official media have been continuously reporting on the news that Japanese brands have suffered huge claims in Europe and have experienced a sharp decline in market share, the whole story has not been mentioned. I suddenly had a guess. ? Xu De had just recovered from the initial shock, and suddenly felt that his entire train of thought became clear: Could it be that this matter... was planned by Mr. Chang? After finishing speaking, several eyes looked at Chang Haonan. Fortunately, the matter has been settled after all, and there is no harm in talking about it. So the latter had no choice but to continue explaining: "Sigh... wasn''t it that I was responsible for building heavy-duty die forging presses at the Equipment Industry Department before? During that process, I accidentally discovered that several Japanese companies were dishonest. The parts they exported were exactly the same as those produced by our domestic companies. This is obviously Just buy it and get it OEMed. Originally I just checked casually when I went back, but the more I checked, the more things happened, including not just OEM, but also shoddy goods, contract fraud, falsified product data, collusive bidding... in short, all five evils. "Then I thought... with the nature of the Japanese, it is impossible to do this just in our Chinese market. It is estimated that the European and American markets also play the same way, so I teamed up with the Bingfei Group to make a game, and the other party not only took the bait , and also sent a wave of assists himself..." ??The story started on the way to the canteen and ended after lunch. ??The ups and downs of the plot, and more importantly, the satisfying results naturally aroused a burst of admiration. What a wonderful turnaround Song Wencong concluded radiantly. Although I am not in the industry I am in, this kind of thing sounds very encouraging. I just dont know when our military industry will be able to do something like this. The details of the dike-building operation are not entirely clear, even to those sitting here. As for the previous incident of inadvertently forcing the Maritime Self-Defense Force submarine out, the spread was even smaller. not to mention For Chinese military workers, it is natural that they cannot only target Britain or Japan. But an old rival from across the ocean. "Well... there will always be a chance, I guess it won''t take a few years." What Chang Haonan said is actually just a prediction in the general direction because he understands the future development context. But now he would not have thought that this opportunity would appear in front of him not long after... (End of this chapter) Chapter 617 Anti-Cruise Missile Noble Phantasm Chapter 617 Anti-Cruise Missile Noble Phantasm ?Just when Chang Haonan was in Chengdu, he was busy preparing to upgrade the design of Project No. 10. Lingshui Airport, Qiong Province. An almost brand-new elongated IL-76MF transport aircraft appeared in mid-air outside the fence, aiming at the landing height of the runway in a nearly dive attitude. It was almost until the last moment before touching down that the nose of the aircraft was pulled up and the main landing gear was released. Accurately hitting the center of the runway. Soon, the plane slowly came to a stop about two-thirds of the way down the runway. ?Everything seems normal. ??But the captain Cheng Yunfeng in the cockpit still curled his lips, obviously not satisfied with his landing. Compared with the classic clamshell thrust reverser on the D30KP2 engine on the old model, the grille thrust reverser of the new PS90A-76 engine is more efficient. Pilots who are accustomed to the landing method of the Il-76TD in the past can easily misestimate the length of the runway required for landing. ?Just like just now, the goal he set for himself was to park the plane in front of the taxiway entrance at the end of the runway. ?Of course, Lingshui Airport has a long enough runway, so even if the touchdown position is not precise, there will be no problem. But as a pilot of a military transport aircraft, you always have to make it more difficult for yourself. What if there is a runway half destroyed by the war? Cheng Yunfeng flipped the switch and opened the air-tight hatch and tailgate at the rear of the aircraft while reviewing the imperfect landing in his mind. ?The four-leaf tailgate opened simultaneously in four directions: up, down, left, and right. After a while, more than twenty people wearing uniform work clothes came out one after another. Immediately afterwards, a flatbed trolley was pushed out along the springboard ramp. ??A slender cylindrical object wrapped in red and white striped woven cloth is firmly fixed on it. Originally, with such a small number of people and cargo, there was no need to use a transport aircraft as large as the IL-76 to perform the mission. But with the arrival of a new batch of IL-76s in the second half of last year, the Air Force transport aviation also needs to adapt the newly modified pilots to the increasing number of strategic transport aircraft. ?Then you have to fly anyway. Instead of flying empty, it is better to perform some tasks that are less difficult and easy to get started with. Lets use competition as a substitute for training. ?Several transport and commuter vehicles quickly gathered on the runway at this time and began to carry other unloaded materials from the cabin. At the same time, a higher-ranking officer got out of the passenger seat of a Cheetah SUV with a hard top and saluted the two leaders. Welcome to the comrades of Electronic Technology Group! ?In the huge round of organizational adjustments in March this year, the original Ministry of Electronics Industry was abolished and reorganized into the Ministry of Information Industry together with the Ministry of Posts and Telecommunications. The research institution of the former Ministry of Electronic Industry also followed the conglomerate restructuring of the military industry system and established the Electronic Technology Group several years earlier than the original timeline. It can be regarded as one of the many influences brought by Chang Haonan. The ones who just got off the transport plane were naturally the engineers from the 14th Institute of Electrical Engineering. You are Commander Tang, right? Ive known you for a long time. ? Xu Yang and Guo Lin, who led the team, were not soldiers, so they could only shake hands with Tang Yiping in front of them. ?After the end of the embankment building operation last year, the latter, as a front-line commander who personally participated in setting up aircraft, was naturally promoted and became the deputy commander of the South China Sea Fleet Aviation Force. ?However, because he is not old enough to be grounded, he is still stationed at Lingshui Airport and participates in aviation training as before. At this time, Guo Lin quickly picked up what Xu Yang was saying to avoid any awkward silence: "The mission you led last year brought back extremely valuable practical data for our electronic technology system, which is of great significance to the development of new new technology equipment in the future. Before coming this time, our group leaders also specifically asked us to face you face to face. Express gratitude. ??Although there is very little publicity about the embankment construction operation at the official level and is even somewhat secretive, the Dianke Group is deeply involved in the equipment support work of the mission, so it still knows many details. As for this thank you... of course it is not entirely because of the reasons Guo Lin said. In fact, what Dianke Group would like to thank more is the unsatisfactory performance of the Yun-8J warning aircraft in that mission. At that time, there were even signs that the SouShui 2000MS radar was being interfered with by the British backdoor, which indirectly prompted the senior management to decide to build a self-developed early warning aircraft as a backup outside the ring project just in case. This aircraft has basically entered the prototype production stage. Air Police 200 project. But its hard to talk about this kind of thing clearly, so we have to use a more high-sounding name. No, no, we should be the ones thanking you comrades in the military industry system. Tang Yiping quickly waved his hand: Operation Embankment would be completely unimaginable without the several brand-new equipment you provided, especially the new electronic warfare aircraft. "From this point of view, that mission should be regarded as something we completed together. I was just lucky, so I got this obvious credit." What he said was completely true to his feelings. After all, even from a personal point of view, if it were not for such an opportunity, then as the chief officer of an aviation unit in a non-key disadvantaged direction, it would be almost impossible for him to cross the gap between middle and senior officers without hindrance as he does now. threshold. Even the entire 25th Regiment of the 9th Naval Aviation Division was awarded the honorary title of "Xiangjiang Guards Regiment". ??As long as we wait a few more years, when the incident can be fully disclosed, Tang Yiping''s name can basically be put into the Naval Museum or even the Revolutionary Military Museum... After calming down, he continued: So, this time I heard from my superiors that you have new equipment that needs to be tested, so I hurriedly submitted the application on behalf of the old army. I just wanted to see in advance what new equipment you have come up with..." Just when the three of them finished exchanging greetings and compliments, and were about to get down to business, the equipment that had been fixed on the flatbed truck happened to be torn off its frivolous packaging, which was similar to that of construction site equipment, revealing its true appearance. A pod apparently made of composite materials. There is no difference in core hardware from the jammer previously tested at Dajiaochang Airport. ??However, the algorithm has been further upgraded, allowing the jamming pod itself to resolve and forward the coordinate information sent by the GPS during high-speed movement. The aerodynamic shape has also been optimized so that it can be mounted by an aircraft. The scope of action is no longer a nearly infinitely high cylinder centered on itself, but can be used directionally towards the front of the aircraft. Of course, it was built using another GPS receiver that was tested before. In other words, there should be no third one in a short time. Thats it? Tang Yiping, who has sharp eyes, immediately saw this thing that looked like a small auxiliary fuel tank: Is it also an electronic warfare pod? ? In the past, such an inconspicuous device might not have attracted his attention, but since seeing the magical power of the JH-7, he has a certain degree of awe for all cylindrical devices that can be hung on airplanes. Thats right, a pod designed to interfere with satellite positioning equipment can cause all targets to receive false positioning information within a range of about 20-25km. Xu Yang turned around and glanced at the pod that was being unloaded onto a light truck: It can target all GPS devices, but the main combat target is expected to be to interfere with cruise missiles and the use of satellite-guided bombs. In theory, it can interfere with an unlimited number of all munitions in an area at the same time. Of course, in addition to being on an airplane, it can also be installed on a car, but in terms of testing, airborne testing is more difficult. Since she started running outfield with Chang Haonan and participated in various project tests, she has become more and more like a normal person in the way she speaks. ?Hearing such a function, Tang Yiping''s eyes immediately lit up: Sodo we need our pilots to prepare anything extra? ? Before being selected for the embankment operation last year, he was one of the first pilots to receive the J-8C aircraft and participated in a low-altitude interception mission against simulated cruise missiles. However, it was ultimately discovered that with the configuration of mechanical scanning radar and semi-active radar bombs, each aircraft basically only had time to intercept two targets, which was very inefficient. Considering that the number of ground-attack cruise missiles equipped on a powerful enemy cruiser may be more than the semi-active air-to-air missiles equipped by our army, the actual combat significance is really not great. But if you have the equipment in front of you, it seems that you can completely erase the opponent''s numerical advantage... As long as the low-altitude flight technology is passed, and the aircraft has a 1553B bus and a multi-function display, it will be fine. Xu Yang stepped forward, patted the outer shell of the pod, and then opened a small door on the side: When used on the ground, an external computer can be connected here, and technicians can write the coordinate translation algorithm on site according to actual needs. However, considering that there is no such condition on an airplane, I, and of course the regular workers, have set 4 prefabricated algorithms in advance from the beginning. The pilot only needs to press the button to select to achieve the corresponding interference effect. Hearing her explanation, Tang Yiping finally felt relieved: Dont worry about this, my pilots are absolutely fine in low-altitude technology. When the time comes, the 14 J-8C pilots of the 25th Regiment will be at your disposal... (End of this chapter) Chapter 618 Soft Kill Self-Defense Countermeasure System (SKSPCS) Chapter 618 Soft Kill Self-Defense Countermeasure System (SKSPCS) ?While the three people were chatting, all the equipment brought along with the transport plane had been unloaded and loaded onto the truck. The aircraft did not stay too long. After changing direction on the taxiway, it quickly returned to the runway to prepare for takeoff and return. ?Lingshui Airport does not have the ability to support the IL-76, and it cannot even refuel. Fortunately, the improved version has a long enough range and the remaining fuel is enough to fly back to the Yiling base in Hubei Province. This is also the significance of long-distance transfer flight training. ??If you are just wandering around your home base, even if the flight time is long enough, it is difficult to feel the tension of facing unfamiliar airspace and unfamiliar ground staff. Many problems do not appear at ordinary times and only appear under such circumstances. As for the technicians of the 14th Institute of Electrical Engineering, they naturally got into the car and went to the arranged accommodation, and prepared to conduct final debugging and inspection before hanging up the pod later. By the way, two comrades. ?Tang Yiping, who was sitting in the passenger seat, turned his head slightly: How about I gather together the pilots in the regiment who can fly the J-8C this afternoon, and you guys decide on the candidates? If possible, we can also fly a few more sorties to let more comrades become familiar with the flight characteristics after mounting the equipment. Obviously, he had tasted the sweetness last time and wanted to prepare in advance. ?What if another opportunity similar to the dike-building operation comes along? ?However, Xu Yang behind him directly waved his hand to indicate that he didnt need it: Commander Tang is better at this matter. We trust the judgment of professionals. Moreover, the J-8C is also a new model and should be in similar condition. You can make the decision. For her, choosing a pilot doesnt actually mean much. Because there are really no difficult operations. ??Moreover, she is someone who has never even been in the cockpit of an airplane, so she has no way of judging the level of other peoples business. As for getting familiar with the characteristics of flying In fact, there is no possibility of mass production of this equipment in a short time. Only one fixed ground-based jammer and one mobile jamming pod are available. ??If Chang Haonan hadn''t insisted on completing the follow-up maneuver interference test, she might not even have made this trip. No, I should say definitely not. Sitting in the back seat of the Cheetah off-road vehicle, Xu Yang half-leaned against the window and exhaled a long breath of distress. How could she, a lazy person who only squatted in the laboratory doing theoretical research, unknowingly become a field engineer traveling all over China for field tests? Absolutely outrageous. If I make the decision...then what is the general process of our test? Can you disclose it? ?? Tang Yiping was not pretentious and took out a notebook directly from his pocket. Xu Yang briefly recalled the details that were finalized with the leaders of the Electronic Technology Group and the Naval Equipment Department before departure: The surface ship force will cooperate with us and launch six modified YJ-8A target missiles from a frigate to simulate cruise missiles launched by ships or submarines. The only thing that needs attention during the entire test process is that the range of the target missile is only 75 kilometers, and the whole flight time does not exceed 4 minutes, so the effective interception window is only about two and a half minutes, and the pilot needs to seize the opportunity in time. But on the other hand, the area of ??the experimental airspace is also relatively small, and there is almost no concern about searching for targets. "Oh, yes, in addition to a jammer carrying a pod, we also need an auxiliary aircraft to accompany the target missile. It is best to be a two-seater, so that the pilot can concentrate on flying at ultra-low altitude and it will not be so dangerous. " Tang Yiping, who was in front of me, wrote quickly and quickly wrote down these contents, and the expression on his face became relaxed: "There is no problem with the two-seat aircraft. Although the main equipment of the 25th Regiment is J-8, there are also a few J-6s used for adaptive training of new pilots. If that doesn''t work, our division has another one equipped with J-7s. Tuan, you can use it from over there. In principle, after he was promoted to deputy commander of the South China Sea Fleet Aviation Force, he could no longer be considered a member of the 9th Division. However, in reality, after his promotion, leaders would definitely use this term when referring to the old army: "In addition, this training method is basically the same as what we tested at the beginning of last year, in which the J-8C used the PL-11 to intercept low-altitude cruise missiles, and there will be no technical problems." "It''s just... this YJ-8A is inertial For anti-ship missiles with guidance and terminal radar guidance, we used missiles to directly intercept them before, so the guidance method didnt matter, but this time since we are testing the GPS jamming effect, then..." In fact, China''s first set of satellite navigation systems, Beidou Generation 1, is still under preparation. Except for some handheld GPS positioning terminals purchased by some commanders and soldiers through different channels, there are no decent satellite positioning equipment at all. . Commander Tang doesnt need to worry about this. The person who replied was Guo Lin, who had never spoken just now: "Our 14th Institute of Electrical Engineering has removed the warheads of those target missiles and replaced them with simple guidance modules based on civilian GPS positioning systems. Although they are not very good in terms of accuracy and obstacle avoidance logic, they are just used as target missiles. , is enough. Last time, they had verified the effectiveness of this set of jamming equipment for interfering with the military GPS navigation system at the university campus. Therefore, the focus of this round of testing is the effect of directional interference against multiple targets, and whether the jamming equipment itself is in motion. It can still function as usual. So it is not a big problem to replace the interfered target with the civilian version this time. ?Of course, the main problem is that there is really no other accurate P-code receiver... In that case Tang Yiping put the pen back into his pocket and looked at the notebook in his hand for a while: Then Ill fly the test aircraft myself! Three days later. Similarly at Lingshui Airport. ? A J-8C fighter jet numbered 81091 is parked at the end of the runway. Tang Yiping, wearing orange flying gear, is conducting final inspections before takeoff. ??The pod, which looks similar to the auxiliary fuel tank, is currently hanging on the center pylon of the aircraft''s belly. If it is placed on an old aircraft, then if a brand new ammunition or equipment wants to be put on the aircraft, especially for complex equipment such as pods, it may even require extensive modifications to the carrier aircraft itself. But after the emergence of the data bus system, as long as the new weapon is compatible with the bus, it only requires a small amount of software-level modifications to be used. In the past three days, apart from waiting for the frigate to complete preparations and go to sea, I have been debugging the avionics level functions. ?After confirming that there was no problem with the status of the aircraft itself, Tang Yiping lowered his head and selected rack number 4 on the multi-function display at the lower left of the control panel in front of him. In the weapon control system, this thing is named Soft-killingSelfProtectionCountermeasureSystem. Soft-kill self-defense countermeasure system. SKSPCS. The Chinese army rarely refers to a piece of equipment in such an obscure way, preferring simple and crude naming strategies such as "empty dry 100". ??In addition, Tang Yiping''s English level was relatively average, so it took him a lot of effort to remember the official name of this thing. Even the technicians at the 14th Institute of Electrical Engineering directly refer to it as a GPS jamming pod. In fact, this name was given by Chang Haonan when the project was first established. Of course it is not to imitate the habits of NATO. Rather, it is emphasized that it is not a "weapon", but a protective equipment purely used for self-defense and countermeasures. In this way, when it is put into overseas use in the future, whether it is domestic or international, the obstacles it faces will be much smaller. According to the requirements of the mission briefing before boarding the plane, Tang Yiping adjusted the working mode of the equipment to "3". ?This interference mode will focus on the GPS altitude signal in an area, inducing the guided weapon to misjudge its own altitude, thereby detonating or crashing in advance. ?After everything was completed, Tang Yiping slowly pushed the throttle lever forward from the idle position. Tower, Unit 01 is ready and ready to take off. (End of this chapter) Chapter 619 The confused Annan people are sailing in the air? Chapter 619: The confused Annan people are sailing in the air? ??The designated airspace for this soft-kill test of a simulated cruise missile target was chosen near the China-Saudi Arabian Sea, about 600 kilometers away from Qiong Province. In other words, in the past two years, the equipment of the naval aviation, especially the aviation of the South China Sea Fleet, has been updated relatively rapidly. If it had been four or five years earlier, few aircraft would have been able to fly there safely and conduct low-altitude tests before returning... As for why we must choose a place so far away... Naturally, this was the result of discussions between Xu Yang and Chang Haonan before the test. Although when originally designed, the range of this "soft-kill self-defense countermeasure system" was only calibrated between 20-30km, the situation between electronic equipment and mechanical structures is really different. Since electromagnetic waves are extremely affected by environmental factors, even Chang Haonan cannot accurately grasp the design values ????as he did when designing aircraft, leaving as little margin as possible so as not to "waste" performance. Moreover, in his estimation, the place where this equipment would work would be a city in the midst of war. The signal environment is extremely complex, and it may even face electromagnetic interference from both warring parties. So, he must leave enough redundancy in the design. ??But in this way, in places like Qiong Province where the background noise is quite clean, how far can this thing work specifically... No one is counting. And this thing is said to be specifically designed to interfere with positioning and navigation signals, but firstly, the frequency limit cannot be so precise, and secondly, the GPS signal itself has a certain width, such as the L1 frequency band at 1575.42MHz, the L2 frequency band at 1227.60MHz, etc. In order to avoid making too much noise, such as affecting the operation of radio equipment in a large city, it is more worry-free to place it in a slightly distant location. Fortunately, the naval aviation force has conducted more long-sea flight training in the past two years than in the past few decades combined, so for Tang Yiping, who had just taken off, this was not a big deal. ? And at a distance of 600 kilometers, the airborne shortwave radio station can still communicate with the Lingshui base through ionospheric reflection. ?In the absence of a satellite positioning system, aircraft can only navigate through a few methods such as gyro integration or wireless power triangulation, and rely heavily on visual flight to find landmarks for positioning. ?After about 40 minutes of flight, Tang Yiping finally saw a reef that was half hidden under the blue sea and roughly in the shape of a "door" on the sea surface in his field of vision. He lowered his head and compared it with a photo placed in the transparent pocket on his thigh to confirm that the features were exactly the same. Base, No. 01 has visually discovered the Shenhu Sands and is about to enter the test airspace. The communication quality of the shortwave radio station was average, so he repeated it twice in succession. ??The tower commanders slightly vague voice soon sounded on the radio: Received, the target missile carrier is currently located southwest of the Shenhu Sands, about 40 nautical miles in the 240 direction. Please pay attention to search the airspace in this direction. After confirming that his position was correct and adjusting the flight direction according to the instructions of the base, Tang Yiping lightly pushed the control stick and lowered the aircraft to an altitude of about 500 meters In fact, for flying over the sea, 500 meters is not considered high (less than 1,000 meters is considered low altitude). ??Besides, the purpose of his lowering altitude is to provide a relatively mild electromagnetic wave emission angle for the fire control radar and self-defense countermeasure system, rather than a low-altitude penetration like the previous time when facing the Royal Navy fleet. There is no need to play so thrillingly. In this moment, the HUD in front of Tang Yiping already showed a target flying diagonally towards him at a high subsonic speed, about 80 kilometers away. ?Of course it cant be a target missile. YJ-8A is small in size and roughly cylindrical. The radar reflection area is not large. For a radar like the 1472, which was of a satisfactory technical level in the early 1990s, it is impossible to catch the target at a distance of 80 kilometers. Probably the JH-7 that performed the accompanying mission to collect evidence... ??Tang Yiping quickly judged the nature of the target. Sure enough, about half a minute later, the radar detected three more signals with weaker signals and slightly lower flying altitudes. This test is divided into two parts, corresponding to mode 3 and mode 4 of the preset interference algorithm, which respectively correspond to the key interference height signal and the key interference plane position signal. Hence, the six target missiles will be fired in two rounds. At this time, the South China Sea Fleet did not even have a surface ship that was on standby and could launch the Eagle 8A. As a last resort, a 053H2 frigate Huangshi was transferred from the East China Sea Fleet. ??This model, which has not left any significant mark in the People''s Navy series, uses a rather special weapon arrangement. All anti-ship missiles it carries can be launched sideways and forward at the same time, which has become one of the reasons for being selected to participate in the test. ?After confirming that the target can be searched stably, Tang Yiping tried to adjust the radar to tracking mode before entering the interference distance. ?This is not part of this test session, he just wants to test whether he can lock a target the size of a cruise missile at this distance. The result was not as expected and it failed. ??It could only track the JH-7 with a huge target, but until it was about 35 kilometers away, it was still unable to track the other three small targets. In order to prevent the two JH-7 pilots from listening to the radar warning sound for too long, Tang Yiping quickly turned off the tracking mode, then pressed the button labeled "SKSPCS (ON on the multi-function display, and then Silently waiting for the results to appear. The charm of electronic warfare lies in this. It is invisible and intangible, but it can defend the enemy invisibly. On the other side, two JH-7 pilots had just recovered from the harsh RWR sound. ??The weapons control officer in the back seat held up his camera and pointed the lens at the right side of the aircraft. Although not much can be seen with the naked eye, through the enlarged picture in the viewfinder, you can see three missiles painted in a black and white grid shape and flying forward at high speed, dragging their tail flames. ?The YJ-8A missile still uses a solid rocket motor with a booster instead of a turbojet engine, so even during flight, there will be a relatively obvious tail flame effect. ??This is of little significance for radar-guided weapons, but will be easily detected by infrared means. Deputy Commander Tang must have made a mistake...why did he use radar to lock on... He felt that his hand holding the camera was a little numb: And these three missiles dont seem to have any reaction, will they work or not ??This JH-7 flew at a much lower altitude than Tang Yiping''s No. 01 aircraft, so the pilot focused almost all of his attention on the sea and did not respond to the complaints of the ballast weights behind. ??The weapons control officer wanted to say something more, but at this moment, the three missiles in the distance suddenly began to decrease in altitude almost simultaneously. Ill go...it seems to be really effective... He quickly pressed the shutter button continuously to capture this most critical stage. Normal anti-ship missiles will also drop in altitude when the seeker searches for the target and enters the end of the attack, but these three target missiles do not have this function. In fact, they even had their guidance radar and radio altimeter removed. According to the setting, it will keep flying about 100-150 meters until it is disturbed, or the fuel and speed are completely exhausted. At present, their rocket engines have not even completely stopped working, so it is obviously impossible to be the latter case. The flight attitude of the target missile is not like a dive, but more like a fine adjustment of the flight attitude after discovering that it is not at the preset flight altitude. It also conforms to the working logic of interference mode 3. Finally, after about 40 seconds, the three targets fell into the sea one after another, and were instantly shattered by the huge impact of the water surface, causing a small splash of water on the calm sea. ??The weapons control officer''s camera captured the moment precisely. Thats it, ready for the second round of testing. He was finally able to put down his arms and take a break while reporting on the radio. However, at the same time. The three planned target missiles are not the only ones affected by interference from the satellite positioning system. ?Approximately 15 nautical miles further away from Huangshi, the Annan Navy''s HQ-15 Pham Ngu Lao frigate is sailing southeast. ?This ship is actually the Bejia class of the original Red Navy. It has a displacement of only 950 tons and has been in service for nearly 40 years. ?However, after the easing of relations with the United States in the late 1980s, limited improvements were made to the old ship, so it was able to continue in service. ?It appeared here completely by chance and had nothing to do with the test on the Chinese side. It was just a routine delivery of supplementary supplies and rotation personnel to about a platoon stationed in a bunker on Nanhua Reef. Inside the bridge, Captain Ruan Yingjun is holding a telescope and looking at the sea in the distance. Certainly not for searching for any target. ?This is already the late 1990s. If you had waited until you could see the target with a telescope in naval battles, you would have been sunk countless times. Besides, even in the naval battles within visual range that occurred in earlier years, Annan''s navy has never won. In fact, since China has been completely unable to effectively control the southern seas for a long time, such transportation missions to the southern seas are generally considered to have no risks. ?Just because a reporter from Annan TV was conducting interviews on board the ship, he needed to take a series of photos showing the captain''s image. Captain Ruan, the photo has been taken. The reporter put down the camera: Can you please tell me how to determine our position on such a vast sea with no reference? Ruan Yingjun put the telescope aside, turned his head and explained: In the past, sextants were used to measure the angle between celestial bodies and the sea level to determine the longitude and latitude, but the accuracy was relatively poor. In many cases, radio or landmarks were needed to assist..." But now you can directly use the satellite positioning system. Here, now almost every ship of ours will..." ??He took the reporter to the satellite navigation terminal and pressed a few buttons to calculate the current position. But the words got stuck in his throat just halfway through speaking. The terminal shows that the altitude of their ship, which is sailing on the sea level, is... 350 meters? (End of this chapter) Chapter 620 Another confrontation with the Annan navy Chapter 620 Another confrontation with the Annan navy ?Looking at the positioning results on the satellite navigation terminal, Ruan Yingjun''s whole brain stopped for a moment. Mainly to highlight a confusion. In fact, under normal circumstances, for surface ship units like them, no one will look at that height data at all. Everyone is sailing on the sea, so its all 0 anyway. There is an error of about plus or minus 30 meters at most. Because satellite positioning is not suitable for altimetry in principle, so this is normal. But todays 350 meters is so dazzling that its hard not to notice. It is basically equivalent to saying that they are sailing in the sky. Captain Ruan? The reporter looked at Ruan Yingjun, who seemed to be frozen in place, and shouted softly again. ??Although the GPS positioning terminal on the Pham Ngu Lao is not the most advanced military terminal that can receive P codes, it is not a commodity that can be bought anywhere. Instead, it was specially purchased from the United States for refitting ships after the relationship between the two countries warmed up. The operation interface is naturally all in English, and there are a lot of abbreviations. So an ordinary reporter naturally cannot understand the interface, but needs the captain to introduce it. After being called out suddenly, Ruan Yingjun almost froze. He felt like he had seen a ghost today. ??This interview is very important to the entire Pham Ngu Lao crew. If everything goes well, many people will be promoted after returning. ?So, he took two deep breaths and replied calmly: Wait a minute, let me refresh the positioning data. As he said that, he quickly started working and restarted the positioning terminal with anxiety. At the same time. In the mid-air dozens of kilometers away, Tang Yiping''s No. 01 aircraft returned to its original position near the Shenhu Sands after making a large circle, and then lowered its altitude again to prepare for the second round of testing. ?Before entering the test airspace, he followed the process determined before taking off, pressed two buttons next to the multi-function display, and adjusted the working mode of the "soft-kill self-defense countermeasure system" from mode 3 to mode 4. The former focuses on interfering with altitude data. The advantage is that it will not affect the plane path of the interfered object, so it cannot be detected by the general path integration algorithm. However, the price is that it can only deal with lower-cost satellite-guided bombs. ?Most of the more advanced cruise missiles themselves are equipped with radio altimeters, and they will not adjust their altitude simply because the altitude signal provided by the GPS is incorrect and eventually crash. ??The latter interference algorithm is directly targeted at plane position data. ?Furthermore, in order to avoid differences being detected by the inertial navigation system, the target''s position information will not be changed immediately when interference first begins. Instead, errors will continue to accumulate as the interference continues, causing the ammunition''s path to deviate. ?This interference algorithm is obviously very complex, so it needs to maintain stable interference for a long time to be effective. If it is only used at the end, the effect will not be too obvious. For this reason, in addition to observing the interference effect on the missile, this round of testing also depends on whether the pod''s heat dissipation and power supply can maintain continuous operation for a long time, and whether it can target roughly the same current area under different postures of the aircraft. . It takes more than half an hour in total. Fortunately, the two auxiliary fuel tanks under the wings can provide sufficient fuel, so there is no need to worry about insufficient range. As for Mode 1 and Mode 2, they are a mixture of the above two modes, but they require an external computer with sufficient performance to support sufficient computing power, which is not within the scope of today''s test. After entering the test airspace in mode 4 this time, the accompanying JH-7 quickly observed that the three target missiles did not continue flying northeast in the original direction, but turned northwest, and the deviation angle gradually increased. ??If it is an actual combat, it means that these missiles have completely lost their effect. ? With such a large route deviation, as long as it continues to fly for a while, even if the interference disappears later, the GPS data will suddenly drift back to the correct position and the guidance system will regard it as a route error and self-destruct. However, when such an interference effect occurs on the Fan Wulao ship dozens of kilometers away, it looks like a completely different situation. ?After Captain Ruan Yingjun restarted the GPS navigation equipment, the altitude data that had just been displayed as 350 meters indeed changed to +5m again. Within the normal error range. The longitude and latitude are not much different from before the restart. He finally breathed a sigh of relief. Sure enough, restarting can solve more than 95% of electronic equipment failures. This is our newly equipped navigation and positioning terminal. Just follow its route prompts while driving. The current celestial positioning is basically only used as a backup, just in case the equipment fails..." Ruan Yingjun, who recovered from the panic, wiped the sweat from his forehead, turned around and introduced himself to the reporters behind him. Having said that, it has indeed been a while since he actually used a sextant for navigation and positioning. After all, not only is this thing troublesome to use, it also has to look up the equatorial coordinates of the corresponding celestial body, which takes a lot of time to operate. "I see" The reporter who didnt know much about the navy just wrote down the captains introduction in his notebook: Then next, I need to take a set of photos of the captain personally at the helm As he was speaking, other media personnel accompanying him had already begun to set up cameras. Ill be at the helm myself? Ruan Yingjun was stunned. The captain personally takes the helm, which is basically a practice only in the sailing battleship era. ??As for modern ships, even ships with the technical level of the 1960s such as the Pham Ngu Lao, there will be a dedicated steering team, and the captain is only responsible for issuing command commands. Although the captain must have received steering training, unless he is from the steering class and specializes in it, such as Masamichi Terauchi (captain of Yukikaze) or William Tennant (captain of Repulse), there is almost no technical training. Maybe compared to a dedicated helmsman. But on the other hand, he also knew that ordinary people and senior leaders who watched Annan TV news reports most likely did not know about this. So it might make sense in terms of publicity ??Moreover, sailing on the high seas and oceans, with the support of a navigation system, is it possible that there will still be problems? So, after weighing it a few times, he nodded: Okay, but according to the regulations, I cant be away from the command position for a long time, so I only filmed a section. Speaking, he took over the steering wheel from the operator. Pham Ngu Lao is only classified as an "escort" in the Red Navy. Due to its small size, it is not very difficult to operate. In addition, the weather is clear and the waves are high today. Therefore, Ruan Yingjun even has extra energy to answer questions from reporters from time to time. . ?But while driving, Ruan Yingjun felt that something was wrong. ?The GPS navigation system kept prompting that the navigation direction was deviating, and he had just been adjusting the course according to the navigation display. My ship maneuvering skills have deteriorated to this extent? Ruan Yingjun couldn''t help but start to doubt his own level. After all, I havent really used it for many years. But even so, you cant even operate the ship to run in a straight line... Perhaps there is a problem with the steering gear system, causing the steering gear to have a deviation angle when the steering wheel is in the middle? ?? Various possibilities flashed through the captain''s mind. ??However, the open bridge and the hot weather near noon in the equatorial region in June made it difficult for him to maintain calm thinking, so he just continued to drive forward according to the GPS navigation data for the time being. ? He ??subconsciously looked up at the sky, but celestial navigation during the day can only look at the sun. However, near the equator, the accuracy of positioning based on the sun is very poor... Whats more, there are reporters and cameras nearby. If he goes out to use the sextant at this time, it seems that he is very incompetent as a captain. ?At this tangled moment, the pictures and numbers displayed on the navigation system suddenly began to jump crazily. Then an error was reported directly, and a bunch of garbled codes appeared. Its really a **** today...whats going on? ??Ruan Yingjun felt that God seemed to be against him. ??GPS, which has never had any problems in the past few years, has failed at this critical time today. ??If something goes wrong in the Annan News report, then his next promotion may be far away... Sure enough, I still cant trust those Americans too much After complaining in his mind, he could only resort to the old method of restarting. By the way, I had to keep chatting with the reporter to prevent the other persons attention from being diverted to the anomalies in the navigation system. But somewhere, Ruan Yingjun already felt that this voyage would not go smoothly. A few minutes later, the GPS connected to the satellite signal again. ?However, the data reappeared on the screen showing that the ship was now heading northeast rather than southeast. ?The position also deviated by about 20 nautical miles from before the restart. This means that he is now approaching sea areas that are not actually controlled by Annan. ?) Ruan Yingjun felt that he couldn''t hold himself any longer. ??He was clearly performing an ordinary transportation mission, so why did he end up here inexplicably? Report to Captain! A report suddenly came from the lookout post on the bridge: Direction 295, about 10 nautical miles away, there is an unknown type of ship flying the Chinese Navy flag! (End of this chapter) Chapter 621 Prevent the enemy from firing a second shot Chapter 621: Preventing the enemy from firing a second shot One sentence instantly made the atmosphere inside the entire bridge become anxious. You must know that the Chinese Navy in this year has only a few ships, and even fewer ships are in a state of combat readiness and can go to sea. ?So he just discovered that the navigation system had an error. After taking himself to this place, he still thought about slowly turning back without realizing it. In any case, these reporters have no sense of direction at sea. As for the reason for this weird phenomenon in GPS, we can only wait until we return home. ?Who would have thought that there would be such a coincidence? Captain Ruan, this However, the reporter next to him was still ignorant of the actual situation at this time. After hearing the report just now, his eyes lit up, as if he was just watching the excitement and didn''t think it was too big a deal. The reason why there is such a huge contrast is that according to Annans domestic propaganda, they have always been dominant in the many conflicts here ??Annan TV reporters are not high-level media officials, so they naturally have no way of knowing the real situation, so they cannot have any sense of crisis. But Ruan Yingjun, who has been in the navy for 20 years, knows the real situation. Back then, when the Chinese navy was completely at a disadvantage in terms of tonnage and sophistication, Annan suffered a series of defeats. Now its own ship is only 950 tons, with only artillery and torpedoes. It is said to be a frigate but is actually no better than a large patrol boat. How much bigger. More importantly, the plan before coming out was to drive all the way south, directly to the vicinity of Nansha and then return. ??This road is all sea areas actually controlled by Annan, and I never thought that there would be any conflicts. ??So the powerful anti-ship torpedoes and rocket depth bombs were not carried at all. As long as there is a serious warship on the opposite side... Ruan Yingjun broke into a cold sweat. Why dont you make up an excuse and just make a U-turn? He has already begun to plan his escape. ?However, something that made his eyes darkened even more was yet to come. ??The accompanying reporter team immediately moved the camera lens originally pointed at him to the outside of the porthole. Since the weather was already good that day, even inside the bridge, with the help of optical magnification equipment, one could clearly see a small white dot in the distance that was not very clear. Captain Ruan, why would a warship appear in this position? Shouldnt this area be under our control? What are you going to do about it? ??A series of three fatal attacks directly paralyzed Ruan Yingjun. ?There is simply no answer to this question. It was impossible for him to explain to the other party that he had accidentally steered the ship in the wrong direction. ??Moreover, it was almost 180 wrong and drove into the sea area actually controlled by the opponent. Who believes it? ??Furthermore, the fact that the waters near China and Saudi Arabia are actually controlled by China is completely different from the propaganda caliber in the past. ??If you really tell me, I''m afraid you''ll have to go to a military court when you go back. But if you just rush forward like this... Obviously, there is nothing better to do. The two ships were sailing in opposite directions at a speed of nearly 20 knots. The relative speed was actually very fast. ??As long as Ruan Yingjun was sweating and thinking about countermeasures quickly, the distance between the two sides was close enough that they could see each other with the naked eye. The lookout post again reported: Captain, according to the outline, the opponents ship should be a Type 053H2 frigate, but because the bow of the ship is facing us, the hull number cannot be clearly seen! It should be said that the Annan Navy has done a good job in building information about imaginary enemies. Of course, this is largely due to the fact that the Chinese Navy has not had many new ships worth the number in the past ten years. Let alone professional military intelligence analysts, even slightly more experienced military fans know them all. But the Chinese navy is poorly equipped, compared to the navies of the United States, Japan or even South Korea. For Ruan Yingjun, the feeling of oppression felt when a warship with twice the tonnage and many times the firepower of his own rushed towards him. Captain, the other sides warship is rushing towards us! Are they challenging us? ??The reporter next to him, who was still ignorant and fearless, continued to shout, but at this time, his voice sounded completely noisy to Ruan Yingjun. The latter wanted to kill the noisy fool in front of him. ?But I can only think about it. ??Although the sun was still hanging high in the sky directly overhead, it scorched the entire bridge like a steamer. But Ruan Yingjun''s heart cooled down a little bit. The other side. ??The Chinese Navy on the opposite side has naturally discovered this suspicious Annan frigate long ago. Although during this voyage, 6 of the 8 launch tubes of the Huangshi ship were filled with target missiles, and all of them had been fired, but since we encountered an opponent who came to provoke us in our actual control area, we stopped There is no reason to treat it as invisible. Therefore, Captain Lin Weizhi ordered the correspondent to report the situation to the base, and quickly directed the ship to change direction and sail directly towards the Pham Ngu Lao. Commander Gunner, order down, load all main and secondary guns, prepare for battle! 053H2 is a warship that was commissioned in the mid-1980s. Due to the limitations of the times, the command method is still relatively traditional and cannot be compared with modern ships with CIC. You still have to rely on roaring. "yes!" The gunnery commander stood at attention and saluted. Just as he was about to turn around and leave, he was stopped by the political commissar Sheng Jingyong next to him: Also, dont forget to prepare rocket depth bombs. These things are very powerful at close range! In 1974, the People''s Navy''s submarine-hunting submarines, which were at a disadvantage in terms of tonnage and firepower, were ready to use this tactic, but they were unable to use it because reinforcements arrived in time. Vice Captain Wei Zhuo on the side was numb. "Captain, political commissar, we still have to wait for specific instructions from our superiors..." ?Before he was transferred to this frigate, he always thought that he was already a person who did things out of the ordinary. ??But when the commissar on a ship is more belligerent than the captain, someone has to step up and moderate it a bit... Dont worry, I know the superiors principles well. ?Lin Weizhi immediately said: We will definitely not fire the first shot. But they wont be allowed to fire a second shot. Since the captain has said so, Wei Zhuo can''t stop anything. His own meaning was similar, he was just giving a routine reminder in accordance with his duties. In the few minutes that the three of them discussed and finally reached a decision, the soldiers from the gunnery department had already taken off the gun jackets covering the four Type 76 twin 37mm naval guns on the ship. ??The Type 76 naval gun on the Yellowstone looks no different from an old-fashioned hand-operated artillery, but it is actually a serious radar-controlled fully automatic weapon. It just looks rustic because there is no casing installed. ?At the same time, the ship-borne 341A fire control radar and ZST-2D anti-submarine depth bomb director have also captured the target. ?Just waiting for the other party to make some irrational actions. Captain, the signal department reported that the opponent should be a Bejia-class light frigate. Most of the weapons on the ship have poor accuracy, but there is a group of triple 533mm anti-ship torpedoes. If it hits, it will still pose a great threat. ?After hearing such a report, Lin Weizhi had almost no hesitation: Look for the opponents bow and rush over as fast as possible! Anti-ship torpedoes have a minimum killing distance. If they get close, they cant do anything to us. Also, let the signal department light up the lights and tell them that this is the Chinese Navy that is performing tasks in our waters. Let them leave immediately, otherwise they will bear the consequences! (End of this chapter) Chapter 623 Paranormal activity? Chapter 623 Supernatural phenomena? ?Ruan Yingjun certainly doesnt have the courage to play with bumper boats. Actually, it was an accident that he came here today. As for the fact that he still refused to back down after seeing the Huangshi, it is even more surprising... Captain, the other ship has hoisted a Delta flag on the mast. The signal officer again reported via the ship''s microphone. Delta flag When Ruan Yingjun heard the news, his first reaction was ecstasy: The ship on the other side is broken? But as soon as I thought about it, I immediately felt something was wrong. ?At first glance, it didnt look like there was anything wrong with this guy who was charging straight towards me and still accelerating. Secondly...how could such a coincidence happen? You lose control at this juncture, and are you targeting us? ?Hence, he quickly realized it was a trap. ? ? Continuing to remain stubborn will definitely not end well. The top priority is to find a reasonable way to explain everything that is happening now. At the critical moment of life and death, Ruan Yingjun''s mind was running at an unprecedented speed. Soon I came up with a bold but seemingly feasible plan... Vice-captain, come up with me. He turned back to look at his deputy Fan Wenqi: In this critical moment, we need to take the lead! After finishing his sentence, he quickly climbed to the observation position on the bridge before the reporters nearby could react. ??Although the latter didn''t know what happened specifically, he already had some guesses, so he didn''t ask any more questions and hurriedly followed Ruan Yingjun and climbed up. Vice Captain, our satellite guidance system has just received a very strong interference, causing our ship to travel in the wrong direction. ?At this moment, there is no time for Ruan Yingjun to talk in circles. The vice-captain is his fellow countryman, and if something happens, the two of them are also grasshoppers on the same rope, so they are the most trustworthy people at the moment: The current situation, I guess we have deviated from the original route by about 50 nautical miles, or even more. Captain, this ?Fan Wenqi opened his mouth, but for a moment he didn''t know what kind of reply he should make. He had indeed guessed what was wrong from just now. But I didnt expect the problem to be so big. ??The situation in this sea area is extremely complicated. The originally set route was just trying to find every opportunity. Now it is 50 nautical miles away. God knows what the **** they have sailed to. And if combined with the approaching ship in front... The answer seems to be ready to come out. ?Fan Wenqi''s back was suddenly covered with cold sweat. He felt his blood surge and his vision went dark. ??If he hadn''t held on to the railing next to him in time, he might have fallen directly onto the deck. He felt that he was extremely unlucky. ?? I thought this voyage was a good opportunity to simply gain some credit, but who would have thought that such a shocking mistake would happen. I wanted to show my face, but ended up exposing my butt... ?However, now is not the time to delve into these issues. Captain, what are you going to do about the current situation? The right way is to solve the problem. The only ones who know about the route problem are you and me at the moment, and maybe the navigator in a while. He was also promoted by me and is very trustworthy, so as long as we turn around now, there will be no problem. ??Ruan Yingjun quickly expressed his thoughts: The trouble right now is the reporters. They cannot be allowed to ask questions. They must give a reasonable explanation and push away the responsibility for going in the wrong direction. It is best to leave some evidence along the way so that they can further blame the blame when they return. ?Seeing him look like he had already planned, Fan Wenqi felt a little relieved: Tell me, what do you need me to do? I will put on a play later. Remember to cooperate with me and interfere with our magnetic compass instructions. Actually, this is what Ruan Yingjun is most worried about. According to regulations, at least two navigation methods need to be used for comparison when driving a ship. If this is the case, then the GPS error alone will not lead to this result. But he had to answer questions while driving the boat just now. It was too difficult to do two things at once, and he had never had any problems with GPS navigation over the years, so he lost his vigilance, so he didn''t pay attention to the display of the magnetic compass at all. Thats why we have the current crisis. And if we want to throw the blame away, there is only one way to explain it. It is said that the magnetic compass has also been disturbed. Fortunately, this is not difficult to do. ? Just find someone to bring a strong magnetic field interference source to wander around. After returning to the bridge, Ruan Yingjun quickly put on an anxious face ?This doesn''t even require pretense, because he''s really in a hurry right now. I just did a celestial positioning with the deputy captain using a sextant, and found that our position and course were completely messed up. With one sentence, the already tense atmosphere in the command cabin instantly fell silent. But the positioning of celestial bodies The captain originally wanted to do celestial positioning at noon near the equator. The error would be unimaginably large, and it would have no reference value at all. ??But just as he started to speak, he was hit **** his lower back. Looking back, he found that the deputy captain was standing behind him, shaking his head imperceptibly. His body stiffened for a moment. But as Ruan Yingjuns single-handedly promoted confidant, the Navigator made the right choice at this critical juncture. Shut up. What does it mean to be in a mess? ??As expected, the reporter fell for the trick and shifted his attention to this new topic. I cant say, the information provided by all the navigation systems does not match each other. ?At the same time, Ruan Yingjun took advantage of the situation and turned the rudder directly to the right, making a not urgent but still obvious evasive turning action, which could be regarded as showing his intention to retreat. Now, at least there will be no risk to personal safety. You see, GPS and magnetic compasses are completely inconsistent in the most basic directions. ?At the same time as he said this, Fan Wenqi also took steps and began to walk around without leaving any trace inside the bridge. ?The reporter walked into the operation console with a camera and found that the magnetic compass''s turntable was rotating irregularly in an extremely outrageous way. "this" Even as a novice who has never learned navigation knowledge, he knows the basic principles of geomagnetic positioning. Now the magnetic compass is spinning like a wheel. When it is fast, he can''t even see the words on it clearly. It has obviously lost its direction. function. Then GPS We have just restarted twice, and the positioning information is different each time. ??Ruan Yingjun didn''t lie this time, but he couldn''t reproduce or create the GPS problem, so he could only say it with bare teeth, and then pray that there would be some evidence left in the video the other party had just taken. However, just when the reporter was doubtful, the GPS navigation terminal reported an error again. Look, thats it! Ruan Yingjun naturally didn''t know that this was because Tang Yiping''s No. 81091 aircraft that participated in the test had flown back again. He didn''t have time to think about the reason in detail. He just called out to God for blessings in his heart, and it happened again at this critical moment. Came once: The exact same situation happened twice just now. Now when I restart the device, the coordinate information will be abnormal. The reporter who was completely kept in the dark was dumbfounded and quickly called the camera to focus on this area. He felt as if he had captured something more interesting than warships sailing out to deliver supplies. As for the fact that the ship has turned 180, it is natural that we no longer care about it. As the navigation device restarted, the data displayed on it was the same as what he saw at the beginning. You see, regardless of these two plane coordinates, this number represents the height value. Ruan Yingjun dragged the reporter to his side, pointed at the shocking "350m" and said: We are clearly at sea level now, but the GPS positioning data shows that our ship is traveling 350m in mid-air? At the same time, he also complained in his heart: Its really going to be an aircraft carrier now The reporter who had not believed it before now almost had his eyes bulging out, and he shouted out loud: Could it be...this is another Bermuda Triangle? The late 1990s, because we are about to enter the new century, is a time when all kinds of "unsolved mysteries of the century" are rampant. Including the world-famous Bermuda Triangle devil sea area. I dont know who made the first report. In short, there are more and more reports of various aircraft and ships missing in this sea area. ??Although many professionals believe that this is a hoax to attract attention, the public is obviously very interested in this occult event. And this reporter is apparently one of them. ?Of course, in addition to satisfying my own curiosity, if this kind of thing is written into the news, it will obviously attract enough attention... Ruan Yingjun naturally didn''t believe those rumors, but it was obviously not a good time to pursue these details now. He had originally prepared a series of rhetoric to enhance the credibility of his explanation, but since the reporter had directly mentioned the Bermuda Triangle, he had obviously figured out a plot and logic on his own. In this case, you must comply with the other partys wishes. I think...its very possible! Ruan Yingjun replied without conscience. At the same time, I silently apologized to my navigation teacher... (End of this chapter) Chapter 624 Turbofan 10, full authority digital control system Chapter 624 Turbofan 10, full authority digital control system I wonder what Captain Ruan thinks is the reason for this unusual and mysterious phenomenon? ?The reporter was obviously not prepared to let Ruan Yingjun off easily, but for the latter, as long as the other party could shift his focus from the incident just now to other places, everything else would be easy to talk about. So, he could only bite the bullet and give his answer: "I think the specific reasons should be left to scientists to study, but judging from my perspective as an old seaman, it is very likely that there is a strong and chaotic magnetic field around, so the magnetic compass will be disturbed. At the same time, the strong magnetic field It will also have an impact on electromagnetic wave signals, and this is how the erroneous data given by GPS navigation should appear..." As he spoke, Ruan Yingjun himself did not believe what he said. ?However, judging from the immersed performance of the people opposite, they may really believe it... ?Of course, it is a good thing to believe it, as it can save you a lot of trouble. ?After the nonsense, Ruan Yingjun, who was a little thirsty, added: In addition, everyone, this is a serious matter. Regarding the mysterious events that happened just now, I hope you will pay attention to the content selection when reporting, and focus on the content that was booked before the voyage. ??For a small fish like him to make such straightforward demands for reporting content, if left at other times, it will only have the opposite effect. As for the media, the less you want them to report it, the more they want to report it. ?But after all, Ruan Yingjun had laid the groundwork just now, and now that he was bluffing, he really bluffed the opponent. The reporter''s lips trembled slightly. He looked at the GPS positioning system next to him, which still displayed obviously abnormal data, and the magnetic compass that rotated irregularly from time to time. He seemed to be thinking of the mysterious and terrifying legend about the Bermuda Triangle, and nodded with a pale face. . On the other hand, it is obviously impossible for China to know that this ordinary equipment test has been defined as a occult event by the opposite party due to many coincidences and human factors. ??And it will become the trigger for a series of other events in the future, and even spawn many literary works. At this point, they simply judged The other party is scared. In fact, this judgment is correct. After all, Ruan Yingjun wanted to go back from the beginning. Later, it was just a rationalization for this behavior. ?As a result, the two planes, which had almost reached their fuel limit, naturally returned quickly, while the Huangshi hung far behind the Pham Ngu Lao for several hours. It wasnt until nightfall that day that the other party had no intention of returning before he turned around and left. When this story went through many twists and turns and finally reached Chang Haonans ears, it was already almost two months later. As summer turns to autumn, the first fully produced turbofan 10 prototype B0101 has also completed various tests before leaving the factory, and was transported by an IL-76 transport aircraft to 624 for complete bench performance testing. ? Thanks to the larger pressurized cargo compartment, testers from the 606th Institute and Liming Group also flew to the 624th Institute together with the test prototype. As for Chang Haonan... During this period, he was working on the J-10 improvement project in Chengdu, which is only 100 kilometers away from Fucheng. Just hit and fly and pass. The time spent at the airport is longer than the time spent in the sky. It was also on the way from Fucheng Airport to the 624 Institute that he heard about these little episodes in the testing process from Xu Yang, who had been here for almost two months. However, although the latter was said as a piece of music, to Chang Haonan''s ears, it was not entirely a piece of music. ??The last time China and France conducted a joint anti-submarine exercise, they also caught an underwater villain squatting on the edge of the sea area preparing for reconnaissance intelligence by complete coincidence. Although these two times seemed to be good luck, according to the Thousand Cockroach Law... When you find one cockroach in the house, there may already be a thousand cockroaches in the dark side of the house. In other words, there will only be more similar cases that go undiscovered. There is still a long way to go to protect maritime rights and interests ?When the pick-up convoy arrived at Institute 624, two old acquaintancesDean Li Rongzai and Chief Designer Jiang Fuhewere already waiting at the entrance of the design building. After some pleasantries, the latter faced Chang Haonan, who had just gotten off the car and was carrying a bulging briefcase. He looked up and down for a long time, and then sighed softly: Before today, I never dreamed that someone would come to us for testing on three different projects in two years His expression and tone are very complicated. ?If I have to say it, its probably envy mixed with a little bit of unwillingness. After all, from the turbojet 14, to the turbofan 9, and now to the turbofan 10. Chang Haonan''s movements were so efficient that Jiang Fuhe watched almost the whole process. ??The key is that as a turbine institute, 624 Institute is already responsible for pre-research work on aero-engine related technologies. As a result, others can complete the project faster than I can do preliminary research. At this meeting last year, Jiang Fuhe had just converted the 9-level thrust-weight ratio derived from the R-79V-300 turbofan engine core from a conventional model to a vertical take-off and landing model to avoid the 10-level thrust of the turbofan engine. Edge. It turns out that its only been a year, so why did you start bench testing? ? Even if Turbofan 10 is actually a new project that has been approved three times, is this too outrageous? Furthermore, the thing he fears most is ?After Chang Haonan has studied the turbofan 10, will he start working on a vertical take-off and landing engine again? Jiang Fuhe has now understood that once the person in front of him enters a certain field, others will basically have no chance. But you cant avoid Chang Haonans projects for the rest of your life, right? On the one hand, as the chief designer of Institute 624, although he admits that his skills are not as good as others, he still has some dignity. On the other hand, as the ancients said. Today we will cut five cities, and tomorrow we will cut ten cities, and then we will have a good night''s rest. He started to look around the surrounding areas, and the Qin soldiers arrived again. You cant escape just by hiding... ?He was thinking about these things in confusion, and he felt a little cold for a moment. Fortunately, Li Rongzai next to him didn''t have any obsession with this, and immediately added in a half-joking tone: Moreover, it also helped us build a complete aero-engine testing standard system. I, an old man who only became the dean this year, have been blessed... A speech with high emotional intelligence made up for the slightly awkward atmosphere just now. Everywhere we are, we are all comrades in the aviation industry system, there is no need to be so detailed... ?Chang Haonan also felt that Jiang Fuhe''s mood seemed to be fluctuating a bit, but he didn''t care about worrying about it at this time. After all, the Category II prototype of Project 10 is still waiting for the engine ?The enlarged body is unlikely to be pushed by the AL31FN. Mr. Chang, during this period, with the assistance of the Computing Institute of the Academy of Sciences, we have completed the upgrade of the No. 101 High Altitude Observatory ahead of schedule in accordance with your requirements. ??Although Jiang Fuhe feels very bad now, he still wont delay business because of his personal feelings: In addition, prototype B0101 has been sent to us the day before yesterday. As long as you confirm it is correct, you can start testing. Actually, this is also the reason why Xu Yang appears in Fucheng. She was not directly involved in the Taihang project. However, because the Turbofan 10 was designed with the full authority digital control system (FADEC) in mind, the test content and test methods are very different from the old model. In addition, it is earth-shattering for China. The theoretical thrust of the Ghost is 14 tons, so that the control logic and bench structure of the SB101 high-altitude platform need to be improved to complete the test. As for why the first prototype was called B0101 Because the baseline model of the Turbofan 10 is actually a single-engine model prepared for the J-10, which is the performance shown by Chang Haonan during the PPT lecture on 611. On the contrary, the turbofan is expected to be installed on the J-11, which is the derived reduction model. Push model ?Through calculations by technical personnel from the 601 Institute and Sukhoi Company, it was found that with the current J-11 airframe design, after the sea level thrust is increased to 2*13.2 tons, the marginal benefits brought by further improvement will be very small. Which translates into higher reliability and service life. ?Especially for the Chinese Air Force, which has not yet fully understood the third-generation fighter jets and third-generation turbofan engines, but may soon begin to come into contact with third-and-a-half-generation aircraft and engines. Its always good to save a little more energy. Only due to the change in the air force equipment naming rules midway, the basic type is called turbofan 10B, and the reduced thrust type is called turbofan 10A. ?Chang Haonan raised his wrist and looked at the time. Its still early for dinner. Lets go to the high-altitude platform to see the preparations for the test! (End of this chapter) Chapter 625 Test preparations for the 375th generation aviation engine Chapter 625 Test Preparations for the 3.75th Generation Aviation Engine ??When Chang Haonan saw Haiyide in the test workshop, the latter was holding a walkie-talkie and sternly directing on-site technicians to transfer the B0101 prototype from the dedicated engine bracket to the spreader on the high-altitude platform. ?Compared with the aviation engine control system that was mainly hydraulic and mechanical in the past, supplemented by some analog signals, the turbofan 10 with full authority digital control capability looks much simpler in appearance. Because a large number of hydraulic and pneumatic pipelines originally used for control and action functions were canceled and turned into several engine control units and cables distributed around the aircraft. In addition to reducing the reliability problems caused by these complex mechanical structures, it can also reduce a lot of weight and cost of the engine. Combined with the simpler 2-stage fan + 7-stage high-pressure compressor structure compared to the third-generation aircraft engine, the engines national military standard dead weight was finally reduced to an astonishing 1560kg. For comparison, the dead weight of two typical third-generation engines, F110 and AL31F, calculated according to national military standards, is in the range of 1750-1800kg. Of course, 1560kg is still not the end point. The reason why the Turbofan 10 is called the 3.75-generation engine is because although its structure has almost infinitely moved closer to the fourth-generation engine, most of the materials and production processes are still at the level of the third-generation engine. After all, for China Aviation Industry, even the production of the second-generation turbofan 9 was quite difficult before this. Therefore, in order to ensure that the project schedule will not be affected by material issues, Chang Haonan did not adopt particularly radical weight reduction measures in parts such as the casing and blades when conducting the overall design. Typical fourth-generation engines, such as the F119, can even control the weight to around 1,450kg, thereby achieving a theoretical thrust-to-weight ratio at sea level of close to 11. ?However, this is the part that we will pursue in the future. ?Furthermore, based on the current capabilities of Liming Factory, even after a comprehensive process upgrade, the speed of manufacturing turbofan 10 is still not optimistic. ?After the hoisting step was completed, Haiyide heard a burst of slightly noisy footsteps behind him. Looking back, I happened to see Chang Haonan leading someone in. Comrade Haonan, long time no see. The two shook hands. ?According to the division of tasks, after component-level testing, he, the chief engineer, is responsible for the manufacturing and final assembly of the first engine. This is why Chang Haonan was able to spare time and go to Chengdu to stay for two months. So after all, the two of them have not seen each other for nearly a quarter. For ordinary projects, if the chief engineer and chief engineer take turns to go online and often do not see each other for dozens of days, there is a high probability that trouble will occur. But the situation of Turbofan 10 is quite special after all. ??With almost all test content currently being successfully passed, wearing multiple hats does not seem to place too much of a burden on Chang Haonan. Naturally, no one would raise objections to this without opening their eyes. We are still familiar with the improved test bench, and it is expected that the B0101 prototype will be ready for testing within two to three days. Having completed the command task, Hai Yide hung the walkie-talkie back on his shoulder, and then brought Chang Haonan to a nearby place while explaining the current work progress: The main reason is that compared with before, this test has a lot more backup pneumatic and hydraulic actuators that need to be connected. Not only us, but also the technical staff of the 624th Institute have done it for the first time. ??The latter raised his head and watched the field engineer on the operating frame begin to compare the drawings and carefully insert the pipes into various key positions of the engine. ? Full digital control is an excellent upgrade for engines and aircraft, but it also creates a lot of trouble during testing. Because once the electronic control system loses control, it cannot be shut down in an emergency like purely mechanical equipment, and may even endanger the safety of the high-altitude platform itself. ?In particular, the Turbofan 10 is the first model in China that plans to adopt this technology from the beginning of the design (it was tested earlier on the Turbojet 7). The pipelines currently connected to the engine function as an "external emergency backup". ??Although the possibility of such serious accidents is very small if it passes the factory test, it is still necessary to take precautions after all. Thats okay. Chang Haonan waved his hand: Part of the time I saved from previous design tasks was to leave room for production and testing. At the theoretical and computational level, there are always ways to improve some efficiency, but when it comes to the material level, we still have to be cautious and respect objective laws. "Besides, before officially starting the test, you have to check the improved control rules of the bench system, which will also take a few days." "I can''t hold you back too much..." Haiyide put his hands behind his back and said with some emotion: Compared with foreign countries, I felt that our development speed was not slow anymore, but after working on projects with you in the past two years, I always feel that there is a force behind us pushing us forward. Its totally different to say this. They are all comrades responsible for the same project. There is no way to say that we are holding back. Its just a matter of learning from each others strengths. Chang Haonan waved his hand, then rubbed his neck, which was a little sore from looking up for a long time, and turned his attention to Haiyide again: "By the way, Mr. Hai, how is the situation at Project 11 during this period? Especially the verification machine prepared for us?" Although they are not the same system, Institute 601 and Institute 606 are both in Shengjing and can be regarded as brother units. Moreover, the Taihang Project is actually a part of Project 11, so some basic information can still be obtained. ?Although he sometimes talks on the phone with Yao Mengna, who is almost based in Shengjing, it is impossible to talk about the project on the phone due to circumstances and reasons. The assembly of components has almost been completed. The next step is to gradually increase the localization rate starting from the seventh batch, and then replace it with new domestically produced airborne equipment. Haiyide replied: "As for the replacement verification aircraft, Factory 112 will set aside a quota of a two-seater J-11AS for us to conduct installation experiments. I even took a special look before coming to Fucheng this time. The body structure has been almost completed. , but the main subsystems have not been installed yet. "The main reason is that the turbofan 10 uses digital electronic control, so the pipeline layout and flight control program will be slightly different from the current mass-produced model. We have to wait until we send the next batch of B0201 prototypes. in order to continue the production process. If nothing else happens, it is expected to be delivered for test flight at the end of this year. There is no difference in hardware between turbofan 10A and turbofan 10B. They even come from the same production line. It is just that the former limits the military thrust and maximum thrust values ??at the control system level. It''s a bit like some car engines. As long as the external computer is refreshed to the second level, it can unlock stronger performance. ?In the file sequence within the aviation industry system, the two share the same production code, but the Air Force differentiates them at the equipment level. Therefore, except for the life reduction test, all other items are conducted using the baseline model, and model A does not need to go through the process again. After finishing this part of the conversation, Xu Yang, who had been waiting behind Chang Haonan just now, took a step forward: Next, I will introduce the simulation verification program of the digital control system. Come with me, next door. ?The group walked around the high-altitude platform with dense cables hanging down, and came to the control room that was all too familiar to Chang Haonan ? He ??is probably the person who has spent the longest time in this room outside of the 624 staff. ??Xu Yang still didn''t talk nonsense and directly pushed the information he had prepared long ago into Chang Haonan''s hands. As for herself Purely unscripted, no need. "The system adopts open-loop control for the engine starting process. Considering the three starting methods in practical applications, namely electric start, compressed air start and propane gas start, the high-altitude platform test control system presets three different rules, respectively. It is a fixed-time program fuel supply, a rotational speed function fuel supply and an appropriate fuel-gas ratio. There is no one-to-one correspondence between them. Since the turbofan 10 uses full digital control, in most cases, the speed function fuel supply scheme should be adopted, using the engine speed as the linear mapping quantity of the fuel flow..." "The steady-state working process after startup adopts closed-loop control. Considering that both the J-11 and J-10 will adopt flight control systems integrated with thrusters, there is no need to consider the traditional physical speed control rate in this part, and the equal-reduced speed control is directly used. , the throttle command is directly sent by the flight controller through the communication port or in the form of a PWM signal, so the specific algorithm is exactly the same as what you left in the ECU program, so I wont repeat it..." In addition, there are some extreme parameter restrictions for safety reasons, including physical speed, command speed, T4 temperature..." ? Xu Yang talked for nearly two hours without any interruption, and he was obviously very familiar with the test control logic he designed. After everything was over, she picked up the thermos cup next to her and took a sip of water: Do you think there is anything else that needs to be added? Obviously, she is very confident in the results of her work. ?However, Chang Haonan did not give an answer immediately. Instead, he stared at the "Modeling of System Control Objects and Actuators" part for a long time. Ten minutes later, he finally raised his head again: I think there should be more. (End of this chapter) Chapter 626 Cant beat it? If you cant beat it, join! Chapter 626: Cant beat it? If you can''t beat it, join! "ah?" It was not Xu Yang who made this exclamation. Actually, she just looked up at Chang Haonan in surprise, and her expression didn''t even change much. On the contrary, several other technicians from the 624th Institute standing nearby were looking at Chang Haonan and Xu Yang who were sitting on both sides of a table with somewhat blank eyes. To be honest, we cant blame them entirely. ??The two people just communicated without even using a pen during the entire exchange, which was indeed a bit unfriendly to other people around them. ? Even if a considerable part of them were directly involved in the design of this simulation verification program, it is still difficult to follow the ideas introduced by Xu Yang just now. As a result, I havent fully understood the previous content, and Chang Haonans opinions have already been given. It will naturally feel like "I lowered my head and picked up a pen in math class". Facing Xu Yangs questioning eyes, Chang Haonan finally picked up a pen from the side: There is no problem with the algorithm and control logic of the verification program. What I mean is that there are still some test contents that have not been taken into account. When the people who were scattered around the room just now saw this scene, they almost took a few steps forward in unison and gathered behind the two of them. ?Chang Haonan instantly felt that the light hitting the paper had dimmed... "Ahem... Engines equipped with full-authority digital control systems generally will not be equipped with a complete mechanical control system. Therefore, various operating conditions that may be faced must be considered, such as network-induced delays due to various reasons during flight. and packet loss." It goes without saying about the time delay. If there is a significant gap between the control command issued from the operating end and the response from the action end, I am afraid that no matter how good the pilot is, he will not be able to control the aircraft normally. "As for packet loss... For the TTCAN bus used by FADEC, if the data packet fails to be sent, the protocol will only allow the reference message to be retransmitted immediately, but not other data. This will significantly affect the accuracy and speed of system control, and even cause system failure. stable." Chang Haonan explained while writing: "For example, we can first analyze the simplest form of delay and packet loss. Assuming that the delay is short and constant in each sampling period, and the number of consecutive packet losses also has an upper limit n, then within a sampling period , there may be two controller outputs reaching the actuator end..." "The dynamic characteristics of the engine operating near the steady-state point can be simply described by a continuous state space equation. If this equation is discretized, a 2n+1 seed system will appear. The actual engine operating characteristics will be in these 2n+1 kinds. Random and continuous jumps between them significantly prolong the convergence process of the steady-state system..." Having said this, Chang Haonan stopped the pen in his hand, pushed the two pieces of paper that were already filled with formulas to the front, and then raised his head. ?This calculation made the people around him stunned. But fortunately, this time at least I was talking and writing, and there was a lot of written content, so compared to the complete confusion just now, at least a few people understood the key points. Ours is a wired connection, so there shouldnt be particularly exaggerated delays or packet loss One person asked with some hesitation. Chang Haonan just took a drink of water at this time, quickly swallowed it, and then shook his head: "In fact, just like our normal computer Internet access, the signal transmission bandwidth of the engine''s ECU unit and cables is actually not as good as that of home computers and network cables. Therefore, even during a normal flight, the problem of unsmooth information transmission is very serious. "Normal." In that case...doesnt it mean that FADEC has shortcomings in stability? The other voice was obviously trembling: "After all, the delay of the mechanical control system is certain, as long as you adapt to it, it will be fine, and there is no data loss problem. However, these electronic controls occur randomly. Do you need to keep a complete mechanical system as a backup? " One of the huge advantages of FADEC is weight reduction. It is naturally unrealistic to retain mechanical backup. ?However, since Chang Haonan has raised this problem, there must be a solution: Although electronically controlled delays and packet losses occur randomly, the impact on performance can still be reduced or even eliminated through highly robust control algorithms. "So when I designed the engine control program, I used a distributed control gain matrix to improve the stability margin for delay and packet loss. But how much is this margin specifically and can it satisfy the fighter under various operating conditions? The following requirements still need to be verified during the testing process. "If the stability margin is not enough, you need to add another engine control unit. If the margin is excessive, you may have to reduce one. After all, an ECU and related cables together weigh dozens of kilograms... " Distributed control gain matrix...this...can still be like this?" ??Jiang Fuhe, who had been sitting next to Chang Haonan just now, suddenly had a flash of enlightenment in his eyes. ?After turning the research and development focus of the 624 Institute to vertical take-off and landing engines last year, the biggest problem before him was the control response and stability of the engine''s vertical power output. You must know that vertical take-off and landing is not like horizontal flight. The impact of larger or smaller thrust will not be great. If the thrust output is unbalanced during this process, the aircraft will lose stability and crash directly. However, the high-pressure gas during vertical take-off and landing has to undergo a deflection of 90 or even greater, and the possible external disturbances are more complicated... Hence, the requirements for the engine control system are much higher than those for ordinary engines. ?In the current testing process using the external vertical nozzle of the old model turbojet 7 engine, even if an electronic control unit is used, the reliability of the vertical output process cannot be guaranteed. But Chang Haonan''s sudden reaction just now gave him a complete idea. ? Jiang Fuhe only feels that it is a pity that he is not an expert in the field of control algorithms, so now he has an idea but it is difficult to implement it... Xu Yang, who was sitting opposite, had just taken the two pieces of paper into her hands. While others were still asking questions, she had already read the contents quickly: In this case, I only need to add a packet loss and delay simulation to the test control system...and in essence, packet loss can also be equivalent to the input delay of the engine..." Therefore, it can be considered that the input end of the engine has a delay that increases synchronously with the passage of time, so that the control input signal received by the engine is only related to the measured value Of course, the result measured by this method is the maximum number of consecutive packet losses allowed by the system, not the packet loss rate. It should be fine, right? "Can." Chang Haonan nodded decisively: If you use the maximum number of consecutive packet losses, you only need to slightly change the limit parameter setting logic. This is a completely independent unit and only takes a few hours. Then wait for my news and Ill get it done for you within two days. ??Xu Yang threw the two pieces of paper on the table, stood up, called the names of several engineers from the 624 Institute, and hurriedly left the control room with them. Mr. Chang. After the room became deserted again, Jiang Fuhe approached Chang Haonan again: Can you give me a complete idea about the distributed control gain matrix you just mentioned? The latter was slightly startled. Mainly because I didnt expect anyone to ask this kind of question. Because this is part of the design process. ?However, it makes sense when I think about it. After all, 624 Institute does not only do aerospace engine testing, they are also a turbine power research institution. Even in the previous life, many core machines were built by 624. ??Its just that now because of him, he has almost become a little transparent... This is actually inspired by the flight control program algorithm on the host computer... Chang Haonan said and took the pen and paper again. He did not lie about this matter. It was indeed inspired by the flight control program. ??It''s just that it''s not our own flight control program, but the American''s. ? A huge problem with the flight control of later-generation F35 fighter jets is that there will be huge rudder control delays under certain flight conditions. Until Chang Haonan was reborn, this problem had not been solved... So when he developed the turbofan 10 control program, he almost thought of this issue first. ?Of course, it was impossible to tell these contents to Jiang Fuhe, so Chang Haonan told another version of the story. ??Anyway, as long as the knowledge you teach is correct. ?Looking at the draft paper that was gradually filling up in front of him, Jiang Fuhe, who was still a little angry before, became calmer. Mr. Chang, our institute currently has a vertical take-off and landing engine project. Do you think... after the turbofan 10 project is completed, are you interested in taking over? People must learn to reconcile with reality. If you cant beat me, just join, theres no shame in it (End of this chapter) Chapter 627 The confusing vertical takeoff and landing Chapter 627 The confusing vertical takeoff and landing Facing this completely sudden request, Chang Haonan was a little confused at first. After all, when he first arrived here in the morning, although he didn''t think deeply about Jiang Fuhe''s emotions, he could still feel them. Why did it take less than half a day for your attitude to make a 540 turn? As you hear the word, it doesnt mean join but directly invites oneself to take over a project. ?Moreover, its not just that. More importantly, I still didnt expect that there would be such a thing as a vertical take-off and landing engine. Although at this point in time, Institute 624 should indeed have obtained some technical information of the R79V300 engine. But he was very sure that he had never had a project like this in his previous life. Even if China''s research on vertical take-off and landing aircraft must be said to exist, it is limited to the Warhammer-flavored J-6 vertical take-off and landing model in the 1970s. The idea is extremely wild, which is to hang four lift fans directly outside the J-6. Even so, it is already the most serious project in this direction. After all, regardless of the feasibility, at least an idea has been truly formed at the aviation industry level. The ones that follow are basically the works of aviation enthusiasts, and they are countless. In fact, for China today, the priority of vertical takeoff and landing aircraft is definitely not high. Although due to Chang Haonan''s intervention, Huaxia''s level in the aviation industry and even the entire manufacturing field is now much higher than in its previous life. But comprehensive national strength cannot be reversed in one or two years. Limited resources must still be focused on key projects. ?Vertical take-off and landing is something that can be done, but it can also be done without. After all, the combat effectiveness is definitely not as good as that of fixed-wing aircraft with the same technical level, and China does not have the same need as the United States to bully children all over the world. If it is really implemented, in addition to giving it to the naval aviation force for fun, it will most likely have to be used for export. But that has to be sold together with a light aircraft carrier or amphibious assault ship. Arms sales of this level depend on international influence. At the moment, China in the late 1990s is obviously not up to par. Therefore, Chang Haonan did not choose to agree or reject immediately, but asked about the origin of the project itself: Mr. Jiang, its still early before the turbofan 10 is finalized and put into service. I cant make a decision now on whether I can participate in a new project... "I just...don''t know what the vertical take-off and landing engine you are talking about...comes from?" ?Heaven and earth conscience, he really just wanted to satisfy his curiosity by asking this question, and had no other intention at all. But Jiang Fuhe didnt feel right about it After all, the reason why he studied vertical takeoff and landing was because the original thrust-to-weight ratio of 9-level thrusters was occupied by something like the turbofan 10, which is infinitely close to the fourth generation of core machines, so he had no choice but to take an eccentric approach. ?Now the instigator actually asked this question directly, which has the beauty of an in-person NTR. Fortunately, Jiang Fuhe was not a really narrow-minded person, and he knew rationally that the other party would most likely not know the twists and turns in the process, so he took several deep breaths in succession to calm down his emotions that were almost red-hot just now. But when I think about it carefully, it becomes even more uncomfortable Although it is said that his project was killed by Chang Haonan, during the whole process, the latter probably did not realize what happened... Before others exert their strength, I have already fallen... Im so angry, but theres nothing I can do. Mr. Jiang? ?Looking at Jiang Fuhe, who had an increasingly troubled expression on his face, Chang Haonan was a little worried that he might have irritated the other person, so he cautiously gave another tentative shout. "ah?" "oh" Jiang Fuhe decided to reconcile with himself for the second time. ?This kind of thing happens only once or countless times. So, he tried to keep his tone as calm as possible: "Mr. Chang may not know something. Our hospital raised funds by itself a few years ago and purchased some technical data of the R79V300 engine. It was originally intended to be used as the technical motherboard for the fourth-generation engine. Book." But it was later discovered that the performance of the core engine was not enough. Even if our countrys production process was not taken into account, the thrust-to-weight ratio would be 8.5-9, which does not meet the power requirements of the fourth-generation engine. Actually, of course he knew this story. Although the R79 engine is already a bit like a fourth-generation engine in terms of core engine level, most of the technology and design ideas are still third-generation, and it is unlikely that it will be used in the third and a half generations. At least the stage pressure ratio of the compressor cannot be compared with today''s turbofan 10. ?The choice of a radical core aircraft structure is largely just to reduce the weight of the engine to support the vertical take-off and landing function of the Yak 141 aircraft. So it is reasonable to squeeze out less than 10 level push weight ratio. Otherwise, the Russians themselves would not have to bother developing the AL41F and AL51F later. ?However, at this time, you should definitely let the other party continue talking. ?Hence, he deliberately made a puzzled expression, and even adjusted his sitting posture specifically to suit his unrealistic acting skills: Is there such a thing? Yes, we will later apply some new technologies based on its design to create a fourth-generation core machine with a 3-8-1-1 or 3-7-1-1 structure. When Jiang Fuhe said this, he leaned back in his chair, but did not feel the expected heart palpitations. He was probably relieved: As a result, before we officially started taking action, Academician Liu invited us to participate in the design review meeting of your Taihang project, and found that this idea had already been preempted, and the degree of completion was very high. "Although the state''s investment in the aviation industry has increased in the past two years, it is obviously impossible to support two similar aviation projects at the same time. But having said that, the technical data of the R79 is self-raised by our institute, so it is impossible to just After much deliberation, the only way out was to let it go back to its old business. ?At this moment, Chang Haonan finally knew what was going on with the weird look on the other side that started this morning and lasted until just now. It turned out that without knowing it, I almost killed a project that others had high hopes for ??Although in the original timeline, the project derived from the R79 core machine ended without any problem, at least in Jiang Fuhe''s current view, the "culprit" must be Chang Haonan who can''t run away. ??After a slight pause, and after adjusting his mentality again, Jiang Fuhe continued: "We have been studying vertical takeoff and landing for a year now, and other parts are fine. It is just that the thrust between the lift fan and the main fan is not well balanced. We have done several simulation tests with old models of engines. "The thrust fluctuates greatly. If it were to be installed on an airplane, it would probably overturn midway through takeoff." So, when I just heard you say that the distributed control gain matrix can be used to improve the accuracy and stability of thrust control, I wondered if this technology could also be used on our model. Technically there must be no problem Chang Haonan lowered his head and was about to analyze the pros and cons of this vertical take-off and landing project, when he suddenly caught a key word from the other party: Wait...you just said...lift fan? "yes." Jiang Fuhe nodded: "We have also studied the scheme of Yak 141''s main engine and lift engine. Although the principle is relatively simple, the lift engine is completely useless in level flight. The dead weight is too large, and more importantly, between different engines, Its too difficult to balance the lift. So we were thinking about whether we could use one engine, but output the thrust through two sets of fans. This would at least make the balance a little easier. Of course, the demand for the engine itself would be higher..." Hearing this, Chang Haonan couldn''t help but sigh. China actually has some capable people in the field of aviation development. You must know that the JSF project on the other side of the ocean at this time is only a few PPTs. The vertical take-off and landing models of X32 and X35 have not yet been seen, and there are only a few words about relevant technical solutions. In other words, Jiang Fu and their ideas are definitely not backward, but they are limited by objective conditions and many of their ideas cannot be used. In view of this, Chang Haonan swallowed back the polite words of rejection that were already on his lips: Vertical take-off and landing engines are indeed a promising technology. In this way, after the test of the turbofan 10 is completed, I will systematically organize the related technologies of the distributed control gain matrix into materials. As for hosting the project Chang Haonan waved his hand: After the A and B types of the Turbofan 10 are completed, the next step should be to turn it into a true fourth-generation engine. This process may take several years. "For me personally, firstly, I probably can''t spare the time and energy to participate in two projects that are far apart. Secondly, it''s not easy to take away the beauty of others. This engine is a self-funded project of your hospital. Even if it is done in the future, After being transformed, you should be the main capturing unit. However, if Mr. Jiang needs it, we can communicate at any time. We are all colleagues. ?Chang Haonan''s response can be said to be quite appropriate. ?Even Jiang Fuhe felt a little embarrassed because of his thoughts in the previous half day. Then, I would like to thank Mr. Chang in advance for his support... As they spoke, the two shook hands again. Only this time, Jiang Fuhe finally showed a sincere smile. (End of this chapter) Chapter 628 No way, he gave too much Chapter 628 There is no way, he gave too much For Chang Haonan, the discussion about the vertical takeoff and landing engine with Jiang Fuhe can only be regarded as an insignificant episode in this test work. The improvements to the SB101 high-altitude platform are almost complete. Xu Yang and the engineers from the 624th Institute are responsible for the remaining work. There is no need for him to intervene. So, in the next two days, Chang Haonan''s main work was basically to work with Li Rongzai, Jiang Fuhe and others to write a new evaluation guide for ground testing of aero-engines based on electronic control. Of course, compared to the wave of big moves two years ago that almost caused the entire aviation industry to turn upside down, this time it is just adding supplementary content to the original standards. Technically speaking, the workload is only a fraction of a complete national military standard item, and Chang Haonan does not need to complete all the details, as long as he can outline and identify the core items that need to be completed. The remaining tasks will naturally be completed by Institute 624. More importantly, today, there is no pressure from outside the technical level. You know, when Chang Haonan handed over the "Aeroengine Inlet Distortion Test and Evaluation Method" to Yan Zhongcheng, the latter did not even dare to express his position directly at the first time. Instead, he sent the thing to the National Defense Science and Technology Department almost overnight. Working Committee. As for the follow-up, it was natural for Ding Gaoheng to make the decision to update the content related to the national military standards, and then take advantage of the opportunities created by Boeing''s acquisition of McDonnell Douglas to consolidate the jurisdiction of the entire civil aviation industry under the Committee of Science and Technology. ?This series of actions seems to come easily and naturally, but there are actually many dangers hidden behind it. ?Especially at the end of 1996, when the Science and Technology Commission initially decided to essentially stop the MD90 project and shift to cooperating with Tupolev on C808/909, Ding Gaoheng was under considerable pressure at the top. If Chang Haonan hadn''t later cooperated with the European Aviation Administration and Airbus, Boeing and McDonnell Douglas were forced to agree to a series of conditions that they had never dared to dream of in the past, proving the correctness of the new route. Will be successfully counterattacked by the original vested interest groups. ?Now that the past is behind us, when we look back at these experiences, we can certainly laugh at them. But it would be absolutely false to say that there was no pressure and tension at that time. For the other two people who dont fully understand the situation, what they talk to Chang Haonan the most about after work these days is naturally the topics related to the above. ?Especially at the beginning of last year, during the negotiations with the EU in Ho Kyung, it was particularly exciting. ??Although the Aviation Meteorological Safety Verification Center jointly established by China and the European Union is also established in Fucheng, it is not close to the 624 Institute. ??More importantly, as a foreign-related research institution, the former is not entirely subordinate to the same management system as other institutes under the aviation industry. Hence, there is basically no chance of contacting them at the 624 Institute. In this era when information exchange is not yet smooth, there is no opportunity for face-to-face contact, and naturally there is no chance to know too much news related to China-Europe cooperation. But people are always curious. Especially since the topic has already been discussed. So, later on...we really sent people to help Airbus design a water spray test machine for the A330 platform? ?Jiang Fuhe asked with a twinkle in his eye. ?This matter has even been reported by CCTV News before, so of course he would not really know anything about it. But before asking what you really want to ask, you have to lay the groundwork a little bit. ??Moreover, Im not sure Chang Haonan has any details that are not in the news. Of course, Haofei will send people over there, and the plane should not be too far away from its first flight. Chang Haonan cannot always pay attention to such unimportant projects, but currently almost all cooperation with Europe is promoted by him, so he naturally knows a lot more than Jiang Fuhe: Furthermore, the four water spray systems used on the two A330AITs were also directly produced by Rongfei and then exported. Sure enough, Jiang Fuhe''s eyes brightened when he heard this. You should know that in several other cooperation projects, although China is also responsible for some core technologies, it is generally carried out as a solution provider, or simply as a technical cooperation. Selling parts and components directly to Europe in the form of complete subsystem exports is still the only one. Moreover, that is Airbus... ? ? ? Although there have been several typical cooperation projects between China and Europe in the past two years, for any practitioner in the aviation field, Boeing and Airbus are naturally different from other companies. Still not quite the same. ?Especially after the merger between Boeing and McDonnell Douglas, a series of chaos quickly occurred within the new company. ?Although the original McDonnell Douglas is the merged party at the corporate level, according to the agreement, a considerable number of their senior executives can still hold important positions in the new company, even rivaling the number of senior executives of the original Boeing. The two parties also quickly had differences in their business philosophy. Such corporate infighting was almost immediately reflected at the level of market policy. In addition, in this timeline, the price paid by Boeing to reach the memorandum of understanding is much higher than in the previous life. Therefore, in 1998, Airbus already has a vague intention to compete with the former. Li Rong next to him was looking at the two people chatting animatedly, a little confused. ?Obviously when Chang Haonan arrived at Institute 624 two days ago, Jiang Fuhe''s attitude was still a bit conflicted. How come in the blink of an eye, I cant see it at all... "Mr. Chang, do you think our aviation power station can have a chance..." Jiang Fuhe finally asked what he wanted to ask from the beginning. Well... maybe we need to work harder..." ?Chang Haonans answer was a little funny and helpless. As expected, no one is satisfied. ?Two years ago, when MA60 first entered into reciprocal technical cooperation with European aviation companies, everyone already regarded it as an extraordinary achievement. It is said that in its year-end summary, the Aviation Industry Corporation of China devoted nearly 10 pages to describing in detail the entire cooperation process and the details of the cooperation agreement. As a result, everyone is already thinking about exporting core products such as aviation engine parts to Europe... ?Of course, this kind of insatiable thinking is definitely a good thing for industrial development. After a brief pause, Chang Haonan continued: "Although the research and development of Turbofan 10 is progressing relatively smoothly now, Mr. Jiang, you also know that this is a model project for which I have concentrated all the aviation engine research forces across the country. For this reason, the research and improvement of other types of aircraft engines have basically come to a standstill. state." "So, if we really want the aerospace industry to enter a period of rapid development, we still have to wait until the Turbofan 10 comes to an end, then redistribute the trained teams back to various factories, and then let them be trained separately. This process... always It will take a few years to return it..." ?Hearing this answer, the expression on Jiang Fuhe''s face relaxed. A few years, he can still afford to wait. ??Furthermore, according to his summary, the "a few years" mentioned by Chang Haonan is most likely kept to himself. Until that afternoon, when Chang Haonan left the conference room and went to the high-altitude platform to confirm the readiness for the bench test, Li Rong was sorting out the technical documents scattered on the table while quietly pulling Jiang Fuhe beside him and asked in a low voice. : Old Jiang, when did you and Mr. Chang become so familiar with each other? ?Although he did not say it explicitly, both parties knew that before this, Jiang Fuhe had always had a mentality of "intellectually understanding but emotionally difficult to accept" regarding Chang Haonan''s squeeze out of the 624 Institute project. But just now, it seemed that he had completely looked away. Is this... ?Jiang Fuhe straightened his gray hair: There is no way, Mr. Chang gave too much... (End of this chapter) Chapter 629 Turbofan 10, ignition successful! Chapter 629 Turbofan 10, ignition successful! The other side. Xu Yangs work efficiency is really hard to say. Previously, she promised to complete the simulation verification program of the digital control system within two days, but in the end it only took 46 hours. From the outside, it is just two new signal input lines connected to the surface of the engine that has been mounted and connected to various pipelines. But in fact, based on the program that has been written and packaged, a random signal input delay algorithm is plugged in to simulate packet loss or high delay during data transmission. "Thanks a lot." Chang Haonan looked at Xu Yang, who had disheveled hair and a tired look on his face, and said a special thank you for the first time. "It doesn''t matter, we can''t delay everyone''s progress..." ?? Xu Yang had been in an excited working state for nearly two days. Now that he relaxed, he was so sleepy that he could hardly open his eyes. He yawned and waved his hands: I will not participate in the subsequent testing sessions. I have to go back and catch up on some sleep. If there is a problem with the simulation verification program of the station, just go to my dormitory and knock on the door... But I think... it should... not..." It was a short sentence, but the speed of speaking slowed down at the end... Of course, something as big as aero-engine test-running cannot be done as easily as eating and drinking. ?After completing the final round of comprehensive inspections and confirming that the engine and test bench are properly prepared, the heads of the Turbofan 10 project such as Chang Haonan, Hai Yide, and Li Rongzai and the leaders of the 624 Institute still need to sign for confirmation respectively. By the time the entire procedure is completed and the aviation engine is officially launched, it will already be the morning of the next day. ??As the technicians evacuated the test chamber where the high-altitude platform was located, the thrust platform holding the engine moved slowly along the slide rail to the exhaust cooling device. Compared to when Chang Haonan first came here two years ago, the test station today has been much optimized compared to the past. ??The most obvious thing is that a complete camera monitoring system is set up inside the test chamber. In this way, everyone in the control room can intuitively see the real-time images during the engine test, instead of just judging from the sounds reaching their ears and the dry data displayed on the computer as before. The working conditions of aviation development. ??Moreover, you can also save the video by the way. It can be regarded as a wish that can satisfy Chang Haonan. While testing the Turbojet 14, Chang Haonan always wanted to leave some real image data. After all, it is the first domestic engine with independent intellectual property rights, and it will definitely leave a mark in the history of China''s aviation industry. Unfortunately, it failed in the end due to lack of relevant conditions. The entire bench test process of Turbojet 14 only left a few blurry photos. Mr. Chang, its up to you to give the order to start testing! ?Hai Yide, who was standing in the front row, gently pushed Chang Haonan and pressed the latter onto the chair behind the podium in the control room: "this" In the presence of the chief engineer and chief division, according to general practice, the command command should still be given to the former. ?However, Haiyide''s tone was quite firm, and he had obviously already made plans. ?At such a critical moment, it would be unsightly to get entangled over this kind of thing. ?Hence, he immediately calmed down, took a deep breath, pointed into the microphone and said in a calm tone: The first test of prototype B0101 high-altitude platform is started! When I tested the turbojet 14 and turbofan 9 before, those two models could not be considered new engines. Which is not the case with Turbofan 10. ?This B0101 machine has only been tested on the ground a few times under factory conditions. Due to limited conditions, the traditional startup method was still used at that time. At the moment this is the first use of electric start. Hence, the testing process is naturally much more detailed. Received, start! After receiving the order, the operator pressed the engine start switch on the operating platform in front of him. The display screen in the operating room shows six groups of images from different angles. Compared with the sound and light effects of air-gas starting, the electric starting process is almost silent. Although electric starting still uses air in the final step of pushing the starter, this process occurs in places where the camera cannot see it. ?Similarly, the N2 speed of the high-pressure compressor will continue to increase during this process, but it cannot be observed by the naked eye because of the obstruction of the two-stage fans outside. Switch off the turbo heater and front starter! ?Chang Haonan issued the second instruction. The principle of the aviation engine starting process is somewhat similar to that of a car. Even many small aviation engines are started with a battery + P0 motor structure. But for a large-thrust turbofan of the size of Turbofan 10, this kind of trivial work is definitely not feasible, so an external power supply is required For example, a power supply vehicle, or an auxiliary power system (APU) integrated in some aircraft. In the bench test environment, these two components are not actually set up, but as a complete startup process, their existence still needs to be simulated in the test system. ?On another monitor in the control room, various parameters captured by the sensor have also been displayed one by one. Soon, the N2 speed reaches the ignition fuel supply line. Combustion chamber, ignite! ?At this time, the engine finally had some obvious response. ??As the operator rotates the starting handle, the aircraft engine ignition nozzle generates a high-voltage electric spark in the combustion chamber, igniting the atomized fuel and the high-pressure air mixture that has just been sent into the combustion chamber by the compressor. A faint flame emerged from the tail nozzle, but it only lasted for a moment. ? It is not difficult to tell from the sound that the engine''s operating speed is steadily increasing. At this point, the engine has officially entered working condition. A burst of warm applause erupted from Chang Haonans side For an engine that is actually installed on the aircraft, the entire starting process will be completed automatically under the action of the flight control system. But for the engine testing process, it is a high-risk subject. From a mechanical point of view, the engine''s transition from static to dynamic is a transient process, involving various non-periodic changes with huge fluctuations. From a control perspective, it is an open-loop process. If there are loopholes in the control logic or algorithm, the working state may not converge. Hence, a smooth start is definitely a good start. ??Taking advantage of this moment, he also left his seat in front of the podium. ? There are hundreds or thousands of links in the high-altitude platform test, and naturally there are personnel specifically responsible for issuing command commands. ?Chang Haonan, the chief designer, should focus on testing data. The reason why I commanded the first three steps is to consider a symbolic meaning. The idle thrust of the engine finally stayed at 145 kilograms of force and did not change. This number made many engineers from the 624 Institute who were exposed to the turbofan 10 for the first time show slightly surprised expressions. After all, airplanes dont have gearboxes. The high-temperature and high-pressure gas must be output through the tail nozzle, and the energy generated must also be converted into thrust. The idle state itself is not to "propel" the aircraft, but is just to maintain the minimum working state of the engine for stable operation. From this perspective, the smaller the number that can be stabilized, the better. The number 145 is already extremely high. Mr. Chang, how do you keep your engine running at such a low operating condition? Is there really no risk of stalling? ??Jiang Fuhe approached Chang Haonan and asked softly. The latter slowly came to the screen displaying the test data, looked at the numbers on it, and replied at the same time: This is one of the benefits of full-authority digital control technology. "Although whether the minimum steady-state thrust is larger or smaller will not directly affect the performance, and I have not specifically optimized this parameter, the electronic control system can inherently bring higher control accuracy and response speed, which is also beneficial to work. Fine adjustment of status. Its just an accident (End of this chapter) Chapter 630 No, the push-to-weight ratio is really 9? Chapter 630 Isnt it right? The push-to-weight ratio is really 9? For a brand-new engine like the Turbofan 10, the high-altitude bench test process is still relatively complicated. ?Just the various 0-altitude ground conditions from idle to low speed took nearly a week to complete. This is still when all projects are completed in one go and there are almost no surprises. Mr. Chang, we should start measuring the high-speed working conditions today, right? ? Jiang Fuhe looked at Chang Haonan, who was instructing the technicians to adjust the test data, with a little enthusiasm in his tone. Although the performance indicators of aeroengines are diverse, it is impossible to describe the performance with just one or a few numbers. But even an industry insider like him cannot avoid focusing on performance such as intermediate thrust and maximum afterburning thrust. It can even be said that Jiang Fuhe has been looking forward to it from the first day when the B0101 prototype was transported to Institute 624. After all, this is still a key indicator for grading aeroengines. Well, today I will gradually increase the speed to the maximum in stages. If the minimum continuous stabilization time can be met, then the working condition of the afterburner will also be removed. But strictly speaking, I am afraid..." ?Chang Haonan turned his head and glanced at the watch hanging on the wall next to him: Im afraid it wont be completed until early tomorrow morning. Having said this, he rubbed his temples, which were swollen due to continuous work: If everything goes well, the sea level performance should be completely completed by the end of August. After that, the simulation height will be gradually increased, and the pressure will be slightly smaller..." While the two were talking, the test over there had already begun. ?Different from the idle operating conditions tested in the previous few days, when the compressor speed is increased, the sharp roar of the engine can be heard even in the control room. Although it was not deafening, Jiang Fuhe couldn''t help but raise his voice: Mr. Chang is still humble. He shook his head: To be honest, the projects you have hosted are probably the smoothest ones that I have seen in my more than 30 years of work. Whether it is research and development or testing, the process is the smoothest..." I have the impression that there was almost no rework, including the previous turbojet 14. Although it was repeated several times, it was all in the early years. After you participated, it almost went all the way to finalization..." Actually, before Chang Haonan came over, Jiang Fuhe even had some tangled thoughts about wanting to see each other''s jokes. ?Mainly, he feels that the former is a bit unreasonable. When doing industrial design, many times the initial parameters are guessed based on experience, and then iterations are constantly adjusted based on the test results. It is normal for several iterations to occur in this process. ?Just like social progress is also an upward spiral. On the contrary, it is a matter of going through this kind of thing over and over again. In the past, it was basically a situation that could only be encountered if you were extremely lucky. It means that the parameters at the beginning were chosen well. ?However, Chang Haonan simply rubbed these past common senses on the ground. How have these projects of his gone through any kind of spiral? They all rise straight up like a rocket! ? Jiang Fuhe is not someone who works behind closed doors. Naturally, he has also tried the other partys research methods and tools such as TORCHMultiphysics. It turns out that although the work efficiency has indeed been greatly improved, to put it bluntly, it is still the same iterative calculation, but the spiral speed is faster. ??Far from reaching the magical level of being able to pass the test directly from the drawings to the test workshop. So he believed that Chang Haonan''s level was not reasonable. Ten points or even nine points are unreasonable. ??If you have always relied on strong luck before, then no matter what, with a project as complex as the Turbofan 10, you should have accumulated enough risks, right? And if it werent for luck ?Then Jiang Fuhe will begin to doubt whether there is something wrong with his worldview. The test has now started for a week. The results are obvious. ?Chang Haonan did not lose, but his worldview lost... ?Thinking of this, Jiang Fuhe sighed: Sometimes, Mr. Chang, I feel like you are not developing a new model, its as if you are directly using an already mature model. ?He may not have thought that this unintentional remark was actually infinitely close to the truth... In fact, when Chang Haonan was working on other small projects, the process was similar to others, and he had to go through constant trial and error to find the correct design range. At best, we can rely on richer experience to make the process faster without making any big mistakes. However, in key projects such as turbofan 10 and die forging press... He is cheating. As Jiang Fuhe just said, the system can provide all the parameters of a mature model. It''s just that except for the time when I was really anxious when designing TORCMultiphysics, I would not take out the results directly, but would go through the research and development process again... ? ? ? To really talk about it, for today''s Chang Haonan, it is a project that is directly cheated. On the contrary, they are in the minority. ?However, most people will only pay attention to such large projects. As for "small" jobs such as the Air Police 200 early warning aircraft, many times his name is not even displayed in a conspicuous position, and not many people know about it. As for the work done in the name of Torch Group, it is impossible for outsiders to know the specific division of labor. So, the only things that left a deep impression on everyone were these cheating parts... Is this... Chang Haonan touched his chin: On the one hand, its luck, and on the other hand maybe I have a special talent, which is that I am always unexpectedly accurate when choosing design parameters. However, this kind of thing is still unreliable in the end, so no matter what happened in the past, the testing process must still be completed, otherwise it will be troublesome if something goes wrong..." He couldn''t admit directly that he was cheating, so he had to use "special talent" to explain it. Okay ?Jiang Fuhe was stunned for a while, and finally sighed with a little helplessness. Just think of it as setting the basis of the worldview... Todays testing process was as smooth as before. Originally, the thrust speed of an aircraft engine should be a thrilling process. Whether it is China or abroad, if most aviation engines have any major problems, such as fires and explosions, it basically occurs during this process. But in the case of Turbofan 10, it is monotonous and makes people feel sleepy. ??If it weren''t for the constant high-frequency roaring in his ears, Jiang Fuhe might really have fallen asleep. After all, after the high-altitude platform equipment is opened, whether it is command or operation, it has no direct relationship with him. 20% 40% 60% 80% ?As the engine enters the experiment again and again, the N2 speed to which the high-pressure compressor is pushed continues to increase, gradually approaching the upper limit of the set operating speed. On the screen showing the test data, the thrust curve also increased all the way from the initial 145kgF. Finally, without turning on the afterburner, the stable sea level thrust corresponding to the maximum speed stayed at 8410kgF. 8.41 tons! Looking at the thrust value on the screen in front of him that was so smooth that it was close to a straight line, Jiang Fuhe was suddenly shocked and woke up: So accurate? As an aviation engine designer, compared to the inferred value of 8.4 tons itself, he was more surprised by the consistency between the actual test results and the paper value during the design process. Jiang Fuhe clearly remembered that in the expected parameter manual sent to Institute 624 along with the B0101 prototype before the test, the intermediate thrust was calibrated to 8400kgF. ?The 10 kilogram difference can be regarded as a test error and can be ignored. If you think about it He turned his head somewhat stiffly and looked at Chang Haonan who was standing not far behind him: Mr. Chang, the thrust-to-weight ratio of your thrust-to-weight ratio 9-stage turbofan engineisnt it really capable of reaching 9? "Um?" The latter had been spinning around all day, but when he was suddenly asked this question, he was a little bit unresponsive: Then...what if? Jiang Fuhe was also confused by this rhetorical question. It took a while before he came back to his senses: "Whether it is domestic or foreign, generally speaking, when the push-to-weight ratio is 9, the default is between 8 and 9. If it exceeds 9, it is said to be a push-to-weight ratio of 10... After all, there is still room for publicity for subsequent improved models. Come." "Just like the AL31F and F110 engines, although they both claim to have a thrust-to-weight ratio of 8, the actual thrust-to-weight ratios of the basic models calculated according to our national standards are only about 7.0 and 7.3 respectively. They are new sub-models until recent years. , to truly reach a thrust-to-weight ratio of about 7.6. But this turbofan 10...Although the afterburner has not been turned on yet, I estimate that according to your calibration accuracy, the actual measured maximum afterburner thrust should really be 14 tons..." (End of this chapter) Chapter 631 Afterburner! Chapter 631 Afterburning! Jiang Fuhe''s guess is naturally correct. ?Chang Haonan and him looked at each other in confusion for a while, then nodded: Although from a strict engineering perspective, I cant guarantee what the situation will be like until the afterburner is actually turned on and the data is measured. But... at least as far as my goal is concerned, it is indeed to achieve a sea-level afterburner thrust-to-weight ratio of turbofan 10 of 9. At this point, perhaps I felt that what Jiang Fuhe just said might cause ambiguity, so I added another sentence: I mean, the real 9, not the rounded one. In fact, the reason why the two people have different understandings of this matter is mainly because of the different backgrounds of the times. ?In the 1990s, everyones main equipment was actually products developed in the 1970s and 1980s. (Of course, most of Chinas main equipment is still from the 1950s and 1960s...) During the Cold War, both sides of the Iron Curtain tended to report the performance of their own equipment as high as possible, whether it was purely for reasons of face or practical considerations of exerting military and psychological pressure on the other side. A typical example is that both the United States and the Soviet Union have long been obsessed with using specially modified aircraft to set records. It has almost no real meaning, but both sides enjoy it. Therefore, for Jiang Fuhe, who has been working since the 1960s and has almost completely experienced this stage, the concept in his mind is naturally the same. Although Chang Haonan has been reborn for almost two and a half years, the time when he really received education and learned to do projects was at the beginning of the 21st century in his previous life. ?At that stage, countries publicity about equipment performance gradually turned pragmatic, and many opportunistic habits in the past were gradually corrected. More importantly, China has gradually begun to establish its own industrial discourse system and no longer completely follows foreign countries. Although after 2010, with the gradual rise of Internet thinking, the habit of drawing big pie on PPT has reappeared, both at home and abroad, and it is even crazier than during the Cold War, but at that time Chang Haonan''s academic habits had been basically finalized. The impact was relatively minor. This is when some ideas that are incompatible with this era appeared. On the other side, Jiang Fuhe immediately stood in awe after hearing Chang Haonan''s explanation. In his opinion, Chang Haonan is no longer just down-to-earth. Its all about making things difficult for yourself. ??If we follow past international practices, there would be no problem if the turbofan 10 in front of us is simply called a "thrust-weight ratio 10-level aeroengine." ?At that time, if we think about it a little bit in publicity, we can directly say that my country''s aerospace engines will directly jump from the second generation to the fourth generation level. And Chang Haonan himself can basically just wait to be evaluated as an academician. But now that were doing this... "Um" "Um?" ?Thinking of this, Jiang Fuhe''s train of thought stopped. Because he suddenly realized... ?It seems that even now, as long as the other party can complete the turbofan 10 project, they can just sit back and wait for the evaluation of academicians... "well" Jiang Fuhe sighed. It is narrow-minded after all. Others are in their twenties and have basically reached the upper limit of the existing system, so naturally they no longer care about this. ?Thinking about it this way, it even made him feel a little inferior. Mr. Chang, the intermediate thrust data has basically stabilized. Do you think we should start turning on the afterburner directly? ??While Jiang Fu and emo were talking, the test commander next to him asked Chang Haonan, and at the same time handed a temporary performance report to the latter''s hand. The thrust curve just now has been extremely smooth, so there is nothing interesting to see. ??And more complex data cannot be presented on a piece of paper in real time. So Chang Haonan focused on the fuel consumption of the intermediate thrust. For military models, economical efficiency and environmental protection level are less important to consider. Fuel consumption more importantly affects the aircraft''s range. Especially, the thrust of turbofan 10 has increased by about 10% compared to AL31F. While greater thrust brings performance improvements, it also means more fuel is consumed during the same working time. He turned the report to the other side and quickly found the numbers he was interested in. 0.0745kg/(Nh) ?At this time, Jiang Fuhe, who had adjusted his mentality, also came over: This...the fuel consumption is almost 6% lower than the AL31F. Considering the total pressure ratio of this engine of 25, it is already quite amazing. Chang Haonan''s slightly tired face finally had a slightly satisfied expression and nodded: Well, it can basically offset the increase in fuel consumption caused by the increase in thrust, which can ensure that the range of the third-generation aircraft after the engine replacement is basically the same as before. ?Although this number is slightly higher than the F110''s around 0.07, the latter is specially optimized for subsonic performance after all, and it will definitely take advantage of the fuel consumption of intermediate thrust. Considering that the fuel consumption of the AL31F basic model, which is also in the afterburning state, is as high as 0.0795, the fuel economy of the turbofan 10 should be considered quite good. After all, before the engine enters the variable cycle era, whether it is the third generation or the fourth generation, it cannot escape the limitations of the laws of physics. Thinking of this, Chang Haonan took a deep breath and put a piece of paper in his hand on the table next to him: Get ready to use afterburner. ??If it is an aircraft engine that did not have full authority electronic control before, then all items must be determined before the start of each test, and it is difficult to add them midway. But for the turbofan 10, as long as there is no problem with the engine, just issue an additional command on the console. "yes!" The test commander returned to his station, pointed into the microphone and ordered in a deep voice: Attention everyone, activate the afterburners! ??The operator at the other end of the control room then pushed the simulated throttle valve to the extreme "afterburner" position in the control computer. Almost at the same time he made the operation, the roar of the engine that had already made everyone numb became increasingly sharp. ? And the images of several cameras also appeared dazzling white due to overexposure in an instant. The next few seconds felt like centuries. With the lens aperture automatically adjusted to a more suitable size, everyone was finally able to see clearly what was going on inside the testing workshop. From almost all angles of the camera, one can clearly see the translucent bright purple tail flame with the Mach ring behind the engine tail nozzle. On the working condition display next to it, the cooling power of the water-cooling device in the exhaust section of the high-altitude platform was also fully charged in an instant. Im going to When Jiang Fuhe saw this scene, his whole body trembled: "If the temperature of your tail flame is 50 higher, I guess I will have to stop the test..." Is that so? Because the afterburning conditions have not stabilized yet, Chang Haonan''s attention was not on the parameters just now. ?Now when I heard what the other party said, I realized that I had basically reached the upper limit of this platform... Jiang Fuhe nodded dumbfounded: When this platform was put into use two years ago, Academician Liu and I expected that it could support high-altitude simulation verification of aviation engines within twenty years. It turns out that only two years have passed, and I almost couldnt resist it His tone was full of emotion. Huaxia''s development speed in aviation development is indeed 100 million points different from previous expectations. Happily, its a good difference. It feels like its time to put the construction of cabin No. 2 on the agenda... Theres no need to be too anxious Chang Haonan comforted the other party while waiting for the parameters to stabilize: "The core engine of the Turbofan 10 should be the most powerful aviation gas turbine in our country for a long time. Even if a model with a large bypass ratio is developed in the future, it will not be able to have an afterburner at the back. " So...although it may not last for 20 years, it shouldnt be a big problem if it lasts for five or six years. Five or six years Obviously, Jiang Fuhe next to him did not get much comfort from this. He opened his mouth several times, but remained silent. First of all, I had to shout at the top of my lungs when speaking in this environment, which made me a little tired. ??And Im also afraid of hearing some inhuman words from the other partys mouth again. After all, today has already been a big blow... In a moment of anxious silence, the thrust curve that had been fluctuating just now gradually stabilized. Since the principle of the afterburner is to inject fuel directly into the gas or airflow behind the fan for combustion to increase the afterburning speed, the thrust stability is definitely not as good as the intermediate thrust state. It''s pretty good without too obvious ups and downs. As for the result, it was already expected for the two people. At best, its just a verification. Sure enough, 14150300 kilograms of force Jiang Fuhe took off his overalls hat and read out the number to himself. At this moment, he was completely relieved. (End of this chapter) Chapter 632 Upper replacement of AL31F Chapter 632: AL31Fs superior replacement Compared to the intermediate thrust state, the afterburner cannot be opened for a long time, otherwise it will have a negative impact on the life and stability of the engine. Therefore, in order to collect the minimum duration data required for a single round of experiments, afterburning experiments can only be conducted in an intermittent manner. In the end, it was just as Chang Haonan estimated at the beginning. lasted until the next morning. So much so that most operators changed shifts in between. ?Of course, as the project leader, Chang Haonan must keep an eye on it. Fortunately, he has acquired the ability to "store" sleep time since his rebirth. Some time ago, when the work pressure in Rongfei was not high, I slept a lot, so I was able to hold on. Jiang Fuhe, on the other hand, is basically just soy sauce. ??The reason why I also stayed here to hold on was because I wanted to see the results of the sea level afterburner test as soon as possible. ? Even though it is clear that the performance of this engine should be quite amazing, there is always a sense of excitement about a lottery draw. Having said that, he is already old after all, and he is not as strong as a young man like Chang Haonan. There are some things that he is indeed powerless to do. By the second half of the night, I was almost too sleepy to hold on. Chang Haonan meant to let the sixty-year-old comrade go back to rest and send him a copy as soon as the results came out. But Jiang Fuhe''s mentality at this time is a bit similar to that of a fan who stays up late to watch football and buys the result. How could he possibly agree to such a thing. ?So he slept directly on a bench in the control room. As for the noise For a person who has been working in aviation for most of his life, without the roar of turbines in his ears, he may not be able to sleep well... By the time Chang Haonan could no longer tell whether the roar of the engine or his own tinnitus was what was ringing in his ears, the test commander finally stood up: "Report!" The afterburning experiment data has been collected! When he spoke, his body even swayed a little - The test commander also belongs to the leadership position here, so he cannot change shifts like ordinary operators. So, he has been sitting at his workstation for seven or eight hours. ?If you stand up suddenly now, it is inevitable that the eyes will become dark due to insufficient blood supply. Thats it, were ready to end the experiment and summarize and output the data. ?Although he was confident in the engine test results, Chang Haonan still breathed a sigh of relief when he gave this order. After a slight pause, he said in a less formal tone: "After the engine is shut down and cooled down, you can go back and rest first. Other comrades can take care of the rest of the data." ?The other party opened his mouth, probably because his first reaction was to refuse. But the bloodshot eyes in his eyes even made his vision slightly red, so after thinking about it for a moment, he nodded: "yes!" The result is out? At this time, Jiang Fuhe, who seemed to be sleeping deeply just now, had put on his coat and came back behind Chang Haonan. ??It can only be said that the sword is indeed immortal. Although the ability to stay up late is not comparable to that of young people, even if you fall asleep, you can still capture the key words - ??Just when the test commander shouted the report, he was actually awake. The test is over, but the results still need to be processed before they can be output. Chang Haonan did not look back, but went straight to the computer that recorded the data. Previously, the intermediate thrust data was measured continuously, so the results could be output immediately after the experiment. However, the afterburner test also included a lot of idle conditions for cooling the engine, so these parts had to be eliminated. Let me do it, Im familiar with this. After all, Jiang Fuhe is from Institute 624, and he has just had a good night''s sleep to recharge his batteries, so he can indeed operate much faster than Chang Haonan. In about ten minutes, the compiled report was generated on the desktop. Jiang Fuhe couldn''t even wait to print it out and clicked on the content directly. The thrust part, they have all seen it just now. Although the value fluctuated somewhat with the long-term use of the afterburner, it is still generally around 14150KgF and has not changed much. As for fuel consumption Performing a total of 1.5 hours of afterburner testing, the average result was 0.189kg/(Nh). In the first 15 minutes, which is the first round of afterburning experiments, it can even reach 0.182kg/(Nh). By comparison, this indicator of AL31F is 0.198, while the performance-oriented low-speed F110 is already around 0.210. Compared to the middle thrust, the performance advantage compared to the AL31F is still a little smaller... ?Chang Haonan looked at the data on the screen and said with a somewhat pityful tone. It made Jiang Fu and Zhicui Yahuazi next to them Do you think this is human language? Others are worried about not being able to catch up with similar foreign products in terms of performance. Are you complaining that the advantages are not big enough? ?However, Jiang Fuhe had already achieved complete and complete self-reconciliation by this time, so after complaining a few words in his mind, the main thing he thought about was how to further hug this thigh... ?At the same time, he didnt forget to pick up Chang Haonans words: "I looked at the design information before. After all, the total pressure ratio of the turbofan 10 is still slightly higher than that of the AL31F, and there is not much correlation between the working status of the afterburner and the compressor. A fuel injection ignition device, everyone designs Its almost like you cant perform to your level, so its normal that you wont have as big an advantage as you did during the middle push. Of course, Chang Haonan also knows that with the current processing and manufacturing level in China, the reason why the turbofan 10 can achieve its current level has been compensated to a certain extent by excellent design. ?At this point, according to Haiyide, Factory 410 can only produce two units per month. ?The debts owed by late-industrial countries in the past, even if they are open and closed, will not be easily repaid. He has definitely overfulfilled his task. ?Of course, if you want to think about it, you definitely cant say it directly when expressing your stance: Not quite. ?Chang Haonan leaned his upper body on the chair and rubbed his cochlea with his hands. ?At this time, the engine speed has been reduced to the idle state again, and the high-frequency noise has also been reduced by several orders of magnitude, but the tinnitus will still bother him for a while: In subsequent improvements, we still need to focus on the afterburner, as there are shortcomings ?This time Jiang Fuhe was used to it, or was numb. He didn''t even look back and continued to focus on the other parameters below. The national military standard weight written in the technical manual of this engine is 1560kg. After it was put on the bench, the actual measurement was 1575kg. If you calculate it like this..." He raised his head and did a little mental calculation: The thrust-to-weight ratio at sea level is indeed 9 Even though this matter has been confirmed with Chang Haonan a long time ago, the latter''s words are still not as shocking as the actual calculation of a 9.0 result. Of course, when it comes to restoring the design parameters on paper, I am still a little confident. Whatever is said is what it is, and the error is basically around 5%. ??Chang Haonan was not overly modest this time. The total length of the engine is 4805mm, the maximum diameter is 1250mm, and the air inlet diameter is 915mm ? Jiang Fuhe took another look at the physical parameters of the Turbofan 10 at the bottom of the report, which had nothing to do with this test but were given as a technical background: I remember that AL31F is 5 meters long and has a diameter of about 1280mm So, the turbofan 10 can directly replace the AL31F in situ? This depends on the specific circumstances. ?After the whole person relaxed, Chang Haonan also felt a sense of drowsiness coming over him, but he still managed to answer Jiang Fuhes question: "For the J-11, the internal space of the fuselage is large enough. It is not a problem for the air inlet diameter to be 10mm larger. There is also enough redundancy to lay out the communication cables required for full digital control. Therefore, as long as the flight control allows access, both engines can Even if they can be replaced on the same plane, there wont be any big problem. If it is a medium-sized aircraft such as the J-10, corresponding space needs to be left during manufacturing. Although the changes will not be major, once the aircraft comes off the production line, it will not be compatible with another engine model. So if the 410 factory has insufficient production capacity, it can only give priority to ensuring the supply of J-10 and let the J-11 side wait a little longer..." ? Unlike the previous generation J-10 which used AL31FN for a long time, the J-11B was replaced with the turbofan 10 in the second batch. ??The turbofan 10 on this timeline does not have an absurdly high number of failures and can fully support the reliability required for single-engine models. ??Moreover, it was Chang Haonan who made the decision and asked the 611 Research Institute to change the J-10 into a larger and heavier Category II design, so that the originally planned AL31FN could not meet the requirements. ??It would be too personal if the supply of domestically produced power could no longer be guaranteed and problems would arise in the delivery of aircraft... (End of this chapter) Chapter 633 Ultra-long-range air-to-air ammunition Chapter 633 Ultra-long-range air-to-air bombs Chang Haonan completed the afterburning test of the turbofan 10 and was preparing to go back to rest after sorting out the data. Haojing, Factory 112. ??A convoy of three inconspicuous jeeps drove in from the main entrance, then sped along the winding internal road, and finally stopped at the entrance of the 70# factory building ??Although Beiling Airport is located inside Factory 112, in theory, even small planes can land directly here, but because it is not a civil aviation airport, it is still quite troublesome to operate. ?Not everyone can casually get a special plane operated by the 34th Air Division in the name of civil aviation like Chang Haonan. A few seconds after the car stopped, eight people in suits of different styles got out of the car one after another. The leader, Guo Liqiang, wiped the sweat from his forehead and couldn''t help but "highly praise" the driving skills of these drivers. ??He didn''t even feel the same about flying on a plane or a boat, but he actually got motion sickness on this seemingly ordinary jeep... He held the car door and eased it slightly before his somewhat darkened vision returned to normal. Then, when he raised his head again, he saw several figures in work clothes walking out of the factory. ?So he straightened his somewhat messy suit and led his men up to meet him, while secretly regretting in his heart: If I had known this, I wouldnt have said that reminder when I got in the car... When he just got on the line with the pick-up convoy from Taoxian Airport, he casually said, "Comrade, please hurry up, we are in a hurry." Then...it''s faster, but people can''t bear it. ?After the design of the PL-11 missile was finalized, it happened to coincide with the early retirement of the director of the missile department of the Second Electromechanical Bureau, so Guo Liqiang took over this position naturally. ?However, before the chairs in the director''s office were warm, he, who was originally immersed in the joy of promotion and salary increase, discovered a huge problem - The entire department, after the completion of Thunderbolt 11, did not even have a single project in hand! ?Especially in the same office building, the two brother departments of satellite and rocket are so busy every day that the comparison is even more obvious. The ordinary engineers under my command dont care about this. Anyway, in a place like the research institute, if there is no project, the best is just fishing without unemployment. But as a department leader, if he has no performance for a long time... Things are clearly not going to be easy. ?At that moment, Guo Liqiang suddenly realized ? About why his predecessor, Lao Deng, chose to retire early after the Thunderbolt 11 was finalized... It turned out that they were all laying an ambush here. ?In the following year and a half, Guo Liqiang also worked on some projects based on Thunderbolt 11 based on the ideas mentioned casually by Chang Haonan. ?Happily speaking, this missile is just a domestically produced Italian version of the Sparrow, and its potential is there. Hence, except for the most basic air-to-air model, no one cares about other derivatives. ?At the beginning of this year, he also thought about directly changing the Thunderbolt 11 to an active seeker and upgrading it. ??But the Pili 12 over there in Luoyi seemed to be almost at the stage of test firing. ?So Jun directly showed him what it means to like the new and dislike the old. Just a year ago, I was called Xiao Tiantian, and now I am Mrs. Niu... So, after receiving the official letter from Factory 112 that contained elements of the Riddler, he quickly flew over from Shanghai. You are Guo Liqiang, Director Guo, right? Welcome. The visitor was naturally He Ming, who had sent an official letter to the Institute of Aerospace Technology at the suggestion of Chang Haonan. Ive seen things outside, Ive seen things outside. You should be the General Manager He who sent us the letter? ??Guo Liqiang quickly stepped forward and shook hands with the other party: Just call me Lao Guo, or Guo Gong. He Ming saw that Guo Liqiang was about the same age as himself. Although they were half a level apart, they were not in the same system at all, and there was no affiliation. In addition, he had a technical background and was not keen on official talk. Because of his temper, he changed his title: Well, Mr. Guo, let me take you in for a tour first, and then talk about the situation while watching? Thats good, thats good. ??Guo Liqiang has not fully recovered from the discomfort caused by motion sickness at this time, and it is indeed inconvenient to talk about business right away. By the way, He Gong. ??Guo Liqiang, who was undergoing safety inspection as usual, suddenly said: I would like to ask, our two units have not had much contact before. How did you suddenly think of us? In fact, this was what he was curious about on the plane to Shengjing. According to the contents of the official letter from the other party, this ultra-long-range air-to-air missile at the "missile" level is basically a direct acquisition of the technical data of the R33 for localization. They only need to be responsible for redesigning the guidance system. Just give the Pennant Design Bureau some money. Given the large amount of equipment and exports of Thunderbolt 11 in the past two years, he can still afford this amount of money. The biggest difficulty with long-range air-to-air missiles lies in the missile itself. In other words, it is a project with almost no risk. ? It is true that Shengfei Group only plays a matchmaking role in this process, and the real business has to be negotiated by the Aerospace Technology Research Institute and Pennant. But Guo Liqiang understands that whether doing business or projects, "access" or channels are the most important thing. Why did pie fall from the sky and fall on my own head? Oh... This was recommended to us by Mr. Chang. He said that your side has just finished the research and development of Thunderbolt 11, so the technical strength should be relatively abundant and there should be enough energy to take over new projects. ?He Mings answer highlights a high emotional intelligence. Technical power is relatively abundant can also be said in another way. Its called Its quite pitiful to see that you are starving to death without any business ??Guo Liqiang, whose family knew about his family affairs, immediately wiped the sweat from his forehead: We do have enough manpower at the moment "But this Mr. Chang...since he knows me, he should refer to...Comrade Chang Haonan of Torch Group?" Military industrial corporations of different systems are basically separated by mountains. Although Chang Haonan''s name is well-known in the entire Science and Technology Commission system, not many people outside the aviation industry and weapons industry know that he is a man in his twenties. Horrible Age serves as the chief engineer of two key projects. Relatively speaking, the identity of Torch Group is spread more widely. After all, TORCH Multiphysics software and Torch-C.B. Ferrari, two companies that can be said to have shaken the mechanical manufacturing field around the world, are relatively loud. "Yes, but Mr. Chang is currently engaged in a project and is not in Shengjing, so I am here to contact you." While speaking, He Ming had already led a group of people from the Tian Technology Research Institute to the interior of the 70# factory. Ohthis is F14 Even if Guo Liqiang is from the aerospace system, as a technician working on air-to-air missiles, it is impossible to know anything about aircraft. Not to mention the more famous models like F14: Do we really have such a thing? It was upgraded for foreign customers. Of course, we also got a few for testing... ??Guo Liqiang looked like he was suddenly enlightened. There are only two users of F14. Could it be that the US military came to Shengfei Group to upgrade its aircraft? So, its basically a well-known brand. In fact, the arms sales contract between China and Persia is not considered a secret. That is to say, Guo Liqiang usually does not pay attention to news in this area. Some senior military or aviation enthusiasts have even seen the F14 in test flight near Beiling Airport. . After specially leading a group of people behind him to circle around several planes, He Mingcai continued: The reason why we thought of doing this ultra-long-range air-to-air bomb project was actually influenced by this upgrade project. The customer said he wanted to integrate Russian-made long-range air-to-air bombs into the aircraft, so Pennant sent a group of technicians and several sample bombs to participate in the project. When we saw R33, we felt that this thing could be used for our own purposes... As he finished speaking, he took people to the small compartment where three R33 missiles were stored: Thats it. What the fuck? Is this an air-to-air missile? ?The three huge missiles in front of him were so shocking that Guo Liqiang subconsciously cursed. As a missile designer, of course he knew about the R33 model before he came. But knowing is different from intuitively feeling it. Even though he could memorize the size and basic specifications of the R33, he was still shocked when he saw this missile that was almost as big as two or three people for the first time. ?At this moment, many ideas that he had thought about in the past, but had no conditions to try, all poured into Guo Liqiangs mind at almost the same time... Done it! Such a voice echoed in his ears. (End of this chapter) Chapter 634 Why should your next missile be just a m Chapter 634 Your next missile, why should it be just a missile... ?Guo Liqiangs reaction was obviously not what He Ming next to him had expected. After all, the latter himself and Chang Haonan behaved similarly when they saw this thing for the first time. "How about it? Although there are many functions I told you in the official letter, it should be a lot more difficult to integrate them into such a big thing, right?" At this time, Guo Liqiang was still immersed in joy and excitement. In just a few words, he had already walked around the missile rack several times, looking here and there. ?Although air-to-air missiles are no better than airplanes, they dont actually contain much valuable information from their appearance. But it did not delay him from being simply happy. So much so that I couldnt even answer the question right away. ?He Ming looked at Guo Liqiang like a child who got a toy he was interested in, but he didn''t rush to urge him. ?He has experienced this situation before, a few years ago when he first learned that Su-27 technology was to be introduced and a production line established in China. For an engineer, especially an engineer who could only work in a shell in the past, it feels very transparent to have a platform with such huge potential in front of him for him to unleash. In particular, the aviation industry already had several models of JH-7 and J-8 as a transition before the Su-27. Although the Aerospace Technology Research Institute has produced many models here, they are all small and small, such as the Hongqi 61 or the Thunderbolt 11, and even individual ammunition such as the Hongying 5. Although logically speaking, size does not completely represent the level of technology, but if you really have a choice... Men, who doesnt like big ones... After Guo Liqiang knocked around the missile for a while, he patted the oil stains and dust on his hands again and returned to He Ming: He Gong, I just took a quick look at it and it does have a lot of potential. "Although there is no way to take it apart to take a closer look at the internal structure, I speculate that the volume filling rate of its seeker and warhead is not very high, and there is enough space to accommodate more complex electronic equipment. The air-to-air anti-radiation missile mentioned in it. Having said this, he took two steps forward again and patted the missile body near the nose cone: "The warhead of tactical missiles is basically at this position (rather than the head). Under normal circumstances, because air targets are generally relatively fragile, anti-air missiles tend to use a large number of prefabricated fragments or ring-shaped continuous rods as warheads to optimize The damage area is not the damage capability, and the proportion of the charge to the total weight of the warhead is very low. If we slightly adjust the shape of the warhead and accept a certain reduction in range, with this missile reaching a maximum speed of nearly 5 times the speed of sound, I dont even think there will be any problem in using it directly against the ground. "only" ?? Guo Liqiang, who was full of excitement and talking non-stop just now, his expression froze: "It''s just that for this kind of air-to-air missile with a range of 200 kilometers or more, the process from launch to hit may last 3 minutes or more. Even if there is a terminal active seeker, it must continue during the flight. Guidance correction, otherwise if the missile flies past with only inertial guidance, the target will have gone somewhere long ago. " "I remember that the R33''s paper range is almost 300 kilometers. Of course, this is the ultimate data when the carrier aircraft and the target fly head-to-head. But even if it is discounted in actual combat, it has to be about 150 kilometers, and considering the launch The lock must be completed before then, so the tracking distance of the radar to the target cannot be less than 250 kilometers. " This launch condition... can our carrier aircraft achieve it now? ??If fighter planes are the fierce generals rushing into battle, then missiles are the weapons in the hands of the fierce generals. The levels of the two must complement each other. ? Even a brave man like Lu Bu Dianwei would not be able to exert much combat effectiveness without someone taking advantage of him. In the end, he would be captured or outnumbered. On the other hand, even if Xing Daorong is equipped with a flying halberd and a red rabbit, there is a high probability that he will be overthrown by Zhao Zilong with one shot. During previous test flights, the 1493 radar had captured a target the size of a Boeing 737 240km away. He Ming thought briefly and then replied: However, in order to achieve stable tracking...Im afraid the distance needs to be much closer. ??Radar, especially mechanical scanning radar, does not increase the search distance without limit simply by increasing the power or the RCS of the target is large enough, but also involves the influence of many factors such as the antenna form and the radar back-end data processing level. Concerning this point, Guo Liqiang knows more than He Ming: If this is the case, it would be best to have a native airborne phased array radar, like the MiG-31, to protect target data in the mid-range. However, this is completely confusing He Mingming. ? MiG-31 is essentially a high-altitude and high-speed missile launcher unique to the Homeland Defense Force. It is a dumpling specially made for the R33 missile and the N007S radar. For China, even if we do not consider the technical aspects, just from the perspective of military construction route, we will not develop such a thing. So, he waved his hand and decided to give up on this issue for the time being: "Gong Guo, I''m just responsible for the production of aircraft. I don''t know much about the radar project, but at least, there should be no phased array radar that can be installed on fighter jets in a short time. Otherwise, we should have started long ago. Develop related verification machines. "I think that instead of thinking about so many things that neither of us can decide, we should first build missiles with sufficient performance and mount them on existing aircraft models for testing. As for radars... I think there will be some." Of course Guo Liqiang also understands this truth, but as a missile designer, if he cannot bring out the full performance of the weapon, he will always feel regretful that the magic weapon made by a famous craftsman will be buried. Thats all I can do for the time being. ?He sighed softly, and his brain, which had been a little red and warm just now, gradually returned to calmness: As far as the bomb itself is concerned, the main difficulty for us is the propellant. Even if we get a full set of technical information from Lao Maozi, it will take some time to organize the production. The remaining problems are not big. Whether its active radar, passive anti-radiation, radar guidance to the ground, or directly changing to TV guidance or laser guidance, as you just said, the space inside the radome is really too big, so its not difficult. In terms of target signal processing and control rate, long-range missiles and medium- and short-range missiles may be different, but our country is also considered the best in the world in this aspect, so it is not a problem..." ?Originally, Guo Liqiang just took stock and said that he would definitely not live up to He Ming''s kindness, which was a reassurance to the other party. But halfway through the inventory, the latter was surprised: Top in the world? ??Guo Liqiang was stunned for a moment when he was suddenly interrupted, then nodded: Yes, you dont know? He Ming looked confused: Dont know what? ??Guo Liqiang straightened his half-white hair: "Well...Mr. Chang, there is another researcher from the Institute of Computing of the Academy of Sciences, who is considered a pioneer in this field. Although he probably did not continue to work in this area after publishing an article, there are still domestic and foreign researchers Chinese researchers are very encouraged by them and have invested a lot of energy in this direction in the past two years, so... they are so ahead. He Ming took a deep breath. His profession is in mechanical manufacturing, and he has indeed never heard of these things. ?But then I thought about it, if it was Mr. Chang... ?It seems reasonable. So I accepted this setting. ?Seeing that the expression on He Ming''s face returned to normal, Guo Liqiang continued: Of course, our research capabilities are limited and it is impossible to open so many stalls at the same time, so we should focus on the basic model of the active and passive composite seeker first. "In addition, if you want to carry out anti-radiation missions, whether it is ground radar, early warning aircraft or other aircraft flying radars, missiles with passive anti-radiation capabilities alone will not be effective. It is best to cooperate with electronic warfare aircraft with relevant capabilities. " I know that Haofei has used the JH-7 platform to develop an electronic warfare model before. When this missile is tested, it would be best for you to connect with He Gong and borrow one for testing. This is no problem. He Ming nodded immediately: Moreover, if we wait a few more years, we may also have an electronic warfare model of the J-11 platform. Mr. Chang mentioned it before when he came to inspect our factory..." It shouldnt take a few years ?Guo Liqiang lowered his head and thought for a moment: In short, we can discuss this later. Anyway, as long as there is a reliable electronic warfare platform, the basic functions of this missile can be guaranteed, but the effective range is limited by..." At this point, his voice stopped abruptly. He Ming turned his head curiously and saw Guo Liqiang staring at the three missiles in front of him, wondering what he was thinking. I suddenly had a bold idea After a long while, the latter spoke again: A missile as big as this can be more than just a missile "ah?" ?He Ming was a little confused by this sentence. This matter is a bit complicated to talk about. ??Guo Liqiang shook his head, turned around and looked at He Ming: I hope to meet Mr. Chang as soon as possible. I wonder if you can contact him? (End of this chapter) Chapter 635 Machine bomb bomb network collaborative passive positioning Chapter 635: Machine-bomb/bomb-bomb network collaborative passive positioning Facing this somewhat sudden request, He Ming did not give a direct answer: Yes, yes, but the project at hand by Mr. Chang is not directly related to us, so we need to report it to the higher ups. If its convenient, could you tell me why youre looking for him The question was only halfway through when Guo Liqiang answered directly: I just thought of a way to extend the effective attack range of this missile under the existing technical conditions, but it involves some problems at the system prediction algorithm level. I need to check with Mr. Chang for confirmation. When he said this, there was a sparkle in his eyes, and his tone of voice was much higher than when he was just chatting. ?He Ming was keenly aware of the changes in the other party. He knew that this was a sign of inspiration. For "ordinary" researchers like them, this is an opportunity that comes only a few times in a lifetime. ?Although the sudden flash of inspiration does not mean that you can directly come up with any results like a certain Mr. Chang who is not a human being, the relevant ideas formed in your mind are basically valuable. So, this situation must still be reported to Chang Haonan. There is no guarantee that some new results will be achieved. But what He Ming just said was not entirely an excuse. ?Chang Haonan did not join the No. 11 Project, and he is not a member of the Taihang Project, so I really dont know where the former is at the moment. In short, he is neither in Shengjing nor in the capital. For more details, you have to report to the Science and Technology Commission for application. So, after thinking about it for a while, He Ming came up with a safer way: "In this case, I will contact my superiors immediately and ask where Mr. Chang is currently and when can I meet him soon." As for Mr. Guo, how about you settle down in our factory for a few days and take advantage of this time to sort out the ideas you just had and preferably improve them, so that the communication efficiency after meeting with Mr. Chang will be better? For Guo Liqiang, this was basically the best plan he could think of, so he nodded decisively: No problem, then why bother? After finishing speaking, he turned back and looked at a young colleague who came with him: "Xiao Fang, please go to the department''s internal hotline later, contact the hospital, and tell me that it has been confirmed here. Please ask the leaders of the hospital to organize a group of people with experience in foreign liaison as soon as possible to prepare for negotiations with the Pennant Design Bureau. " As for the formal project feasibility report and proposal application, I will make up for it in a few days. "yes!" ??The entourage named Xiao Fang answered simply and neatly. ?He Mings application was quickly passed to the Commission of Science, Technology and Industry for National Defense. In fact, in most cases, meeting Chang Haonan does not require any particularly complicated procedures. ?Just make an appointment with Torch Group. The problem is that he is currently conducting high-altitude test on the turbofan 10 in 624 Whether it is the 624 Institute, the Turbofan 10 project, or the SB101 high-altitude platform facility, they are all top secret. Fortunately, although Guo Liqiang and Chang Haonan are not familiar with each other, or the entire aerospace science and technology system has not yet had any direct relationship with Chang Haonan, they are all units under the Science and Technology Commission system. So after Ding Gaoheng confirmed the situation with the Aerospace Science and Technology Group through the System Engineering Department in charge of the aerospace industry, he gave the instructions Comrade Chang Haonan is carrying out research and development testing tasks for major projects and cannot leave in a short time. Considering that the actual situation requires it, Comrade Guo Liqiang is approved to go to Fucheng 624 Institute, but the itinerary needs to comply with the arrangements of the other agency. Three days later, Guo Liqiang flew from Shengjing to Rongcheng with this instruction, the letter of introduction issued by Factory 112, and the relevant information he had summarized in the past few days. As usual, a dedicated person from the 624 Station will be dispatched to pick you up. Of course, Chang Haonan had already received news from Ding Gaoheng and knew that Guo Liqiang, whom he had only met once, wanted to discuss something with him. So a day of less important content was specially arranged on the test schedule. ?When the tired Guo Liqiang was brought to a conference room in the 624th Institution Building, Chang Haonan was already waiting here. Mr. Chang, Ive kept you waiting for a long time. The moment he saw the latter, Guo Liqiang finally breathed a sigh of relief. Director Guo flew to Fucheng to find me. He must have something very important. It doesnt matter if he waits for a while. Chang Haonan stood up and shook hands with the other party. In the previous phone call, Ding Gaoheng did not give too many details. ?Of course he could guess that the purpose of Guo Liqiang''s trip must be related to the ultra-long-range air-to-air bomb based on R33. But I really cant think of anything in it that is worth having an interview with myself. After getting closer, Chang Haonan noticed that Guo Liqiang''s face was a little pale: Do you need to have breakfast first? No, Ive already eaten on the plane, its more important to talk about business. ??Guo Liqiang waved his hand and put the briefcase he was carrying on the table: Also, Mr. Chang can just call him Guo Gong. Speaking of which, my position as director is borrowed from your light. If I hadnt been inspired by that paper, Pili 11 would not have been finalized so quickly. While exchanging pleasantries, he did not stop moving his hands and had already taken out several bound books from his bag. The two of them found a seat at the edge of the conference table and sat down. Mr. Chang, I actually flew here directly from Shengjing. Vice President He Minghe of Factory 112 said that it was you who recommended to him to give me the project of introducing domestically produced and improved ultra-long-range air-to-air bombs. Chang Haonan nodded: Yes, because Ive calculated that after you finish PILI11, you shouldnt have much of a burden, and youll just be able to take on the next step. So when I came here this time, I came up with a completely new idea. As he spoke, Guo Liqiang pushed a few piles of information in front of Chang Haonan: Generally speaking, anti-radiation missiles with passive radar guidance function, whether the target is in the air or on the ground, need to be cooperated with a dedicated electronic warfare aircraft to maximize their combat effectiveness. "But the range of the R33 bomb is a bit too far. Before reaching the end, the search range of our country''s existing fighter jet airborne radars is not enough, making it difficult to provide complete mid-course guidance, and passive radar guidance is very accurate at medium and long distances. Even if it is not good, there is no way for the missile to accurately find the target based on electromagnetic wave tracing alone. "As a result, the missile will either not be able to take full advantage of its ultra-long range and be forced to fight in the advantageous range of the medium-range missile, or it will easily break off in the middle after being forced out, unable to cause any damage to the enemy aircraft. Effective threat." "So I thought about whether we could use the large enough size of the R33 platform to not simply treat it as a missile, but as part of the entire search system, networked by the passive detection radar of electronic warfare aircraft and airborne long-range missiles. , positioning ultra-long-distance or low-detectability targets? At the beginning, Chang Haonan still listened to Guo Liqiangs ideas with a relaxed and slightly curious attitude. However, when he heard the last one, which was to let missiles and aircraft cooperate in coordinated searches, his expression instantly became serious and his brain began to work rapidly. There is no doubt that Guo Liqiangs idea is definitely many years ahead of this era. Using multiple aircraft to coordinate, and using random agile multi-platform mutual guidance signals through a data link network to stagger the positioning of enemy radar systems, this was an idea in the 2010s, and no more than three countries have conducted relevant research. ?At the end of the 1990s, data link networks were considered alien technology and were not something to be thought about in the short term. Leave it alone China, not even the United States has a multi-directional high-capacity data link that can meet this requirement. But the requirements can be completely reduced. Instead of random agility to multiple platforms, the missiles can be coordinated with fixed models or even fixed codes, or between missiles and carrier aircraft. In this way, only a non-universal one-way data transmission system is needed, and the difficulty is directly reduced by several dimensions. ? By analogy, the former is equivalent to a true A-shooter and B-guider, such as using an F35 to guide a Standard 6, or a Su-35 to guide a 48N6 to hit over-the-horizon targets. The key point is that neither A nor B needs to be specified in advance. As long as two gadgets that meet the requirements are fished out from the war zone, they can coordinate smoothly. It is a ruthless task that has only been tested in a few tests under ideal conditions until the 2020s. But the latter is similar to the time when the Red Navy used relay helicopters to guide long-range anti-ship missiles to attack aircraft carriers. Although it sounds like A firing B missiles, A and B here are both predetermined. Changing one of them will Its not working anymore. So it was a mature technology even in the 1970s. ??Although tactical flexibility is a complete mess, it is better than nothing. You must know that the J-Handian 7 he designed previously has relatively complete passive detection capabilities. ??If two more missiles with networking capabilities are mounted, it will be equivalent to adding two more weaker aircraft of the same model in this airspace, which can greatly enhance the accuracy of capturing targets. ??More importantly, the missile is extremely fast and almost impossible to intercept, and it will continue to shorten the distance to the target as time goes by. ?Of course, there is a cost. Such a missile is designed almost according to aircraft standards, and the cost must be quite staggering. Furthermore, the flight window of the missile is relatively short, no more than 5 minutes at most. After capturing the target, it is likely that there will be no time to turn around and launch an attack, and a follow-up attack is required. In other words, at least 3-4 missiles must be fired in one attack. But it is really impossible for the JHD-7 to carry more ammunition. ??If you really want to realize the potential of this combat mode, you can either change to a flying platform with more hardpoints and a larger bomb load, such as the J-11. Either put the entire system directly on the ground and use it as an anti-aircraft weapon... ?Chang Haonan''s long silence was as painful as waiting for trial for Guo Liqiang. But he didnt dare to interrupt the other persons thinking casually. Finally, after a long ten minutes, Chang Haonan finally raised his head and looked at Guo Liqiang who looked anxious again: Your idea...should be feasible! (End of this chapter) Chapter 636 A relatively complex algorithm Chapter 636 A relatively complex algorithm ??The moment he heard Chang Haonan''s affirmative answer, Guo Liqiang''s originally tense expression suddenly relaxed, and he became visibly relaxed. After all, this project is definitely a big job. If it can be implemented, it will be tantamount to a shower of wealth on the head of the missile department of their Aerospace Technology Research Institute. It is estimated that he will no longer have to worry about project issues until he retires. But Mr. Chang, this is just an idea at the moment. I did some preliminary research on the implementation level a few days ago while waiting for a reply from the Science and Technology Commission, but... the time was too short and there was no substantial progress. ?When he said this, he realized that he had already broken out in a layer of sweat after just ten minutes of waiting for the results. ? It is true that there is still a bit of an "autumn tiger" atmosphere in Sichuan Province in early September, but this room is located in the shade and has good ventilation, so it is obviously not completely hot. ?Chang Haonan nodded slightly, then pulled the documents that had just been pushed in front of him again and started to read them carefully. As Guo Liqiang just said, he really didnt write much about the positioning and missile control algorithms. After all, these two parts have already involved the theoretical field, and it is impossible for ordinary people to get any results just by thinking about it. However, he still made some useful designs for the use of this multi-source network detection system. For example, the two "detection bombs" fired by the aircraft carrier platform should choose the ballistics as different as possible. Together with the carrier aircraft itself, they should approach the general location of the target from multiple angles to capture effective signal data with the largest possible length to achieve Precise detection of targets across the entire range. ?However, this also means that the straight, high-throwing and diving trajectory of traditional air-to-air missiles is completely no longer applicable. Some ballistic characteristics of ground-attack missiles need to be referenced to meet tactical requirements. In addition, even with a directional data transmission system, this aircraft and two bombs are still three independent individuals, and they are still in rapid relative motion. How to capture the radar signals captured by each other, which may not be continuous? "Combining" or "splicing" together is also a big problem... Not badnot bad Chang Haonan''s eyes flew across the text on the page while secretly affirming the content in his heart. ?In just a few days, Guo Liqiang has grasped two key issues. ??He and the other party were only acquaintances before, but he didn''t expect that he actually had some ink... For Chang Haonan, reading a good technical document feels no less like reading a masterpiece handed down from ancient times to those literary geeks in ancient times. So I cant help but feel a little excited, especially when turning pages, my movements are much bigger. However, just when he was about to see what was going to happen next... ??Only found that the next page was blank. Obviously, this report is a mess. Chang Haonan had almost the same emotion as Professor Roger Elinor: How come its gone here? ?But in the end, I still held back. For a research, raising questions is at least as important as solving them. It is already quite good for Guo Liqiang to have written to this point. After all, if the rest of the content can be filled in, there is no need for the other party to come all the way to find him. After calming down a little, Chang Haonan took out a pen from the pen holder: I just briefly reviewed the working logic of the entire machine-munition network detection system. ??Guo Liqiang has never worked seriously with Chang Haonan in the past, but he could also see that this was the boss''s gesture of preparing to exert force, so he immediately moved the stool under his **** slightly closer. First of all, the airborne passive detection system is used to conduct early warning detection and rough positioning of enemy ultra-long-distance targets or low-detectability targets, and provide initial information for the aircraft to launch missiles. Chang Haonan''s painting skills have improved a lot in the past two years, but they are still at the level of simple drawings plus. He simply drew a frame instead: ?????"Then, use a carrier aircraft and more than two active and passive composite guided air-to-air missiles to form a joint network. For high-precision passive detection, I think it is necessary to use time-lag positioning technology and filtering algorithms to obtain the precise position information of the target and provide mid-course guidance information for long-range air-to-air missiles. Eh? ?Guo Liqiangs expression paused: Time difference positioning method? The reason why he was so shocked was not because of how new the algorithm was. On the contrary, its because its too stale. The so-called Time Difference Positioning (TDOA) is to use the arrival time difference of electromagnetic radiation signals received at multiple points to determine the orientation and distance of the radiation source. In fact, on the JH-7, passive positioning uses this set of logic. Its just that the multiple points above are the two pods on the left and right, which are very close to each other, so the error is very large. ??Now the multi-point is an aircraft and two missiles, with a distance of tens or hundreds of kilometers, so the positioning accuracy will naturally increase. ?So this idea is too direct, and it even makes Guo Liqiang feel that Chang Haonan should not have come up with it. Yes, time difference positioning method. Chang Haonan next to him was a little confused by his reaction. He was stunned for a moment before nodding: This should be the most appropriate algorithm, Guo Gong I must have heard of it At the end of the sentence, there was even an uncertain questioning tone. Obviously, there is still half a sentence left to ask ??What is it about this that should surprise you? ??Guo Liqiang also realized that his reaction was a bit excessive, and immediately explained: Wellits about control after all. Of course Ive heard of TDOA, but I always felt that Mr. Chang would come up with a more clever algorithm Chang Haonan couldn''t help but laugh when he heard the other party''s thoughts: "Algorithms are just a mathematical tool. It doesn''t matter whether it''s high or low, as long as it''s easy to use. If you just create a new algorithm with a higher complexity in unnecessary places just to show off your skills, it will complicate simple problems. It is not in line with the principles of our technical staff. Thats what I said ??Guo Liqiang nodded, obviously agreeing with Chang Haonan''s statement. ??The upper body that had just leaned forward also leaned back on the back of the chair. Even intentionally or unintentionally, I ignored the details that Chang Haonan called this problem a "simple problem"... ?However, just as he was relieved, Chang Haonan changed the topic again: However, although the principle of multi-station time-difference passive positioning itself is very simple, when it comes to our problem, it still requires some skills to use three positioning stations in relative motion to accurately solve the position of the target radiation source. "In the past, on electronic warfare aircraft, because the two pods were always relatively stationary, and there was a data bus connection between the pod and the aircraft, a special computer could be used to perform calculations, so the traditional Newtonian method was used directly. Iterative methods can also be solved. "But the current machine-munition network detection requires a lot of calculations, and the data transmission rate between each other is also slow. We definitely can''t use the old method. Otherwise, by the time the target position is calculated, the missile will reach its maximum range. Already ??Guo Liqiangs upper body, which he had just leaned back, sat upright again: That Chang always means Multi-station time difference positioning is essentially about solving a set of strongly nonlinear partial differential equations. ?Chang Haonan slightly adjusted his sitting posture: So here, it is necessary to develop a relatively complex algorithm... (End of this chapter) Chapter 637 Thunderbolt 13, ready for project approval Chapter 637 Thunderbolt 13, preparing for project establishment ?At that moment, Guo Liqiangs expression was quite wonderful. Lets just say, I always felt something was wrong before, but I never quite figured it out. ?Now I finally know whats wrong In the exchange just now, he could actually understand everything Chang Haonan said. If this is the case, wouldnt his trip have been in vain? In the end, those who didnt understand were left waiting... ?There is nothing to worry about now. Mr. Chang...please tell me more specifically? ??Guo Liqiang''s tone was much more relaxed than before. ?But Chang Haonan did not answer immediately. Instead, he lowered his head and frowned, looking at the white paper in front of him and thinking. ??If this state were placed on ordinary people, it would look like they were in a daze. However, this is Chang Haonan after all, so... In Guo Liqiangs opinion, this should be thinking. Its not easy to disturb him with words. After a few minutes of brainstorming, Chang Haonan felt a sense of dizziness for the first time. ?It seems that it is a bit too whimsical to skip supercomputing and use the human brain to simulate numerical calculation results. ?So he raised his head, raised his hand to rub his forehead, and looked at Guo Liqiang again: As for the nonlinear equations generated by multi-station time difference positioning, I can only think of three possible numerical solutions at present. ?) ?At that moment, how to describe Guo Liqiangs expression? . ? gif In fact, when Chang Haonan developed the TORCMultiphysics software, he systematically studied the solutions to high-order nonlinear partial differential equations. Although the software itself has been on trial for about a year and it is estimated that the official version will be released in a while, he has not stopped researching in this direction. But Guo Liqiang obviously doesnt know this. ? He ??has not participated in the development of TORC Multiphysics software, and he does not know that Chang Haonan even came up with four solutions to a problem in a shorter period of time when he participated in the design of the die forging press. So in his opinion, Chang Haonan saw the question he raised, chatted with himself, lowered his head and thought about it, and came up with three solutions. This is also a person? Chang Haonan felt something was wrong in the atmosphere behind him, so he turned his head and saw Guo Liqiang with a face full of astonishment. He was used to this kind of expression. So he immediately opened his mouth and said: When I was working on a project before, I studied similar problems, and I just deduced the conclusion a little bit. ?This explanation obviously cannot completely eliminate the impact of the sentence just now on Guo Liqiang''s worldview. ?However, at least the latter''s expression is no longer as abstract as it was at the beginning. Upon seeing this, Chang Haonan did not waste time and continued what he had just said: In short, I cant explain these three algorithms to you clearly with pen and paper, and more importantly, I cant tell you which one is better. So its better to do this. After you go back, first deal with the optimization control problem during the flight of the missile. The ballistic trajectory of our model is special and the range is too far. It is difficult to meet the requirements only by traditional trajectory turning control rate. The topic finally returned to an area that Guo Liqiang is familiar with: Are you saying that this missile cannot simply follow a high-throwing and diving trajectory during flight, so the missile wings need to provide a greater proportion of lift than ordinary air-to-air missiles in order to maintain the range and trajectory height? Chang Haonan turned the report in his hand to a previous page and pointed to the combat principle diagram drawn by Guo Liqiang: "Not only that, for the first two detection bombs fired, the trajectory needs to be continuously adjusted in the middle. It is best to shoot a horizontal arc similar to a bracket." Also considering that the targets we are currently expected to deal with are large targets with little maneuverability (the only stealth aircraft currently available are F117 and B2), there is no need for the missile to have a very large overload at the end. Therefore, in the process of controlling the missile, it is best to tilt the lifting surface to the target direction, and during the tilting process, the sideslip angle of the yaw channel should be as zero as possible, so that the resistance is minimal. Excluding some of the currently immature tricks, the rocket engines of air-to-air missiles are basically of the type that are very powerful but of short duration. After the initial acceleration phase is over, the only thing left is to rely on gliding. . After all, the R33 bomb is large enough and has enough fuel. It relies on slow-burning propellant and relatively low top speed to make it stronger than those thin and short medium-range bombs, but it is still the same in essence. So especially in the middle and later stages of the ballistic trajectory, every ounce of energy is very precious and should be wasted as much as possible. After a short pause, he continued to explain: "Although trajectory turning control can generally meet this demand, firstly, the response speed is a bit slow, and secondly, when the target line of sight rotation angular velocity is very small, the corresponding acceleration command is also very small, and the noise influence in the guidance signal makes it difficult for the missile to move The acceleration vector accurately turns to the optimal orientation, causing the projectile to roll frequently and rapidly, not only wasting control energy, but also affecting the detection accuracy. " "As for the anti-personnel bombs that are actually used to attack the target after follow-up firing, the rapid rolling of the missile in the final guidance stage will cause coupling between the seeker and the missile body, and in severe cases may even lead to complete loss of control. " After hearing this paragraph, Guo Liqiang did not immediately continue what he was talking about. Instead, he let out a weak but meaningful sigh. ?Although he couldn''t keep up with Chang Haonan''s thinking in some places, he was still an expert in the field of guidance and control after all, so he could still understand the issues the latter just mentioned. ?However, being able to understand it makes people more concretely aware of how outrageous the person in front of them is - The few issues Chang Haonan just mentioned are too detailed.?????but very important. For the average project leader, it is almost impossible to think of these things at the very beginning. Let alone the beginning, even in the test firing stage, if the conditions are not stretched enough to the extreme, it will not even be discovered. So, it must not be discovered until the end of the test launch. Wait until the specific cause of the problem is analyzed, then think of solutions, and finally go through a new round of test firing process, which can take as short as a few months, or as long as one or two years. ?This is not yet a solution. If you think wrong, you have to repeat it again. When we arrived at Chang Haonan, it only took half a morning to save the above procedures. The time and money saved can be said to be immeasurable... ?While sighing in his heart, Guo Liqiang was not completely stunned, but quickly thought of an idea: Can we consider changing the calculation coordinate system of the aircraft and missiles from self-centered to a unified Haojing 80 or WGS84 coordinate system? Those problems just now are largely due to the fact that the entire networking system uses itself as the origin of the coordinate system. In this case, if the missile rolls at high speed, it is equivalent to the coordinate system itself changing at a high speed, and it changes separately. For the target The calculation of position and own flight status is naturally prone to problems. If the coordinate system is changed to a unified coordinate system, the problem can be alleviated a lot. ?This time, Chang Haonan hesitated. Technically speaking, Guo Liqiangs idea is feasible. ?The only problem is that China does not have almost the entire worlds geographical information data like the United States and the Soviet Union (Russia). Even some of the marginal data of our own are not complete. If you do this, your combat efficiency will be greatly reduced once you leave the country. ?Of course, in terms of the current combat needs of the Air Force, it is enough. However, it is already September 1998. ?If nothing else happens, the powder keg of the Balkan Peninsula is about to explode. Chang Haonan is naturally planning to let this system go abroad for a "trial trial". But this kind of thing must not be discussed with Guo Liqiang. So, he needs to organize his language and persuade the other party from another angle. Using a unified coordinate system requires both missiles and aircraft to sense their precise location in real time, which our country is not currently able to do. Chang Haonan shook his head: I have a better way, which is to introduce the sideslip turn mode directly on the basis of the tilt turn mode, and perform compound control when the missile is about to slide. Lets take a look... The calculation formula for bank turn-side slip turn command conversion is n=n+(1-)n The discussion between the two continued until the afternoon of that day. Even lunch was specially delivered by Li Rongzai. Well, Mr. Guo, this project has been decided for the time being. ?Chang Haonan and Guo Liqiang organized the pile of information on the table and put it into their briefcases, and then came to the door together: "I will contact Director Ding and let you start this project in the name of Thunderbolt 13. After you go back, you will study the composite control first. When I am finished, your Aerospace Technology Research Institute will send it to Torch Group. This tender document solves the problem of multi-station time difference positioning. "no problem." The latter nodded and held Chang Haonan''s hand excitedly with both hands: I have to worry a lot about the establishment of the project, Mr. Chang. Its nothing, its just a matter of effort. Chang Haonan waved his hand: In addition, although it is nominally named Perak 13, I ask you to be prepared. He used a rather rare strong tone: This collaborative networked passive positioning system can not only be used on aircraft. Therefore, while receiving R33 technical data to develop air-to-air missiles, we must also work **** surface-to-air or ship-to-air missiles. "As for the land-based or sea-based passive positioning radar, I will contact the 14th Institute of Electrical Engineering. When I was working on the JH-7, I found that the hardware conditions there were complete. I would like to slightly change the software and Just a few key parts..." ??Guo Liqiang didn''t expect that he would be surprised by Chang Haonan even before he left. ??Whether its the director of the Science and Technology Commission or the 14th Institute of Electrical Engineering, if anyone says to contact me, just contact me. ?This ability to mobilize resources is simply unimaginable... (End of this chapter) Chapter 638 electronic reconnaissance Chapter 638 Electronic Reconnaissance ?Later in the day. ?Across the Pacific, Arlington County, Virginia. ? ?Defense Secretary William Cohen, who has become a veteran at work in the past two years, came to the office and began to routinely review the official business that needed to be handled that day, and then asked his secretary to arrange the schedule. Thanks to the series of scandals caused by the Donkey Party president in the past two years, although he is still the only Elephant Party member among the major ministers, his living environment has improved significantly. Even gradually began to compete for dominance in national defense affairs. ?Of course, at the end of the 1990s, the United States, which had just won the Cold War, was at its peak. When the cake is big enough, the differences between the two parties are not big enough to break up. For Cohen, compared to when he was almost alone when he first took office, he has basically completed the replacement of important people around him, and is able to handle various tasks in the department with ease without having to do everything personally. The pressure has naturally been reduced. Go down. Even his complexion is much rosier than before. A Chinese delegation is coming to visit next week, which will last for 9 days, including a visit to the Army Replacement School at Fort Benning. They need to be prepared to attend and hold talks I will discuss the specific details of Operation Desert Fox with the Joint Chiefs of Staff and the Presidents National Security Advisor this afternoon There will also be a press conference on the recent situation in the Gulf region in the evening The first and third tasks will have his secretary prepare all the details for him, and he only needs to read the memo. Only the second task requires him to go to the White House in the afternoon. Although some quarrels with several other people were inevitable, there was no disagreement between the Donkey and Elephant parties regarding the matter of launching a large-scale air raid in West Asia. ?Cohen hummed a tune happily. Looks like today is another relatively easy day. ?He poured himself a glass of sparkling water, then sat back behind his desk to prepare for processing several documents on the table that needed to be corrected. ?However, at this moment, the intercom phone next to him suddenly rang. His new secretarys voice sounded on the receiver: Mr. Minister, Ms. Henrion is outside. Ask her to come in. Therese Henrion, Director of the Defense Intelligence Agency (DIA). She takes no position between the donkey and the elephant. Of course, it can also be said that her position is flexible and she is always on the winning side. In today''s general context, it is natural to help Cohen. Good morning, Mr. Minister. Henrion held a stack of documents in his hands and sat directly on the chair opposite Cohen after entering the door. Good morning, madam. The latter said hello while pouring another glass of sparkling water and placing it in front of Henrion. At the same time, he saw the document in the other person''s hand: Is there something new happening in the Gulf area? Considering the contents of this afternoons defense meeting, Cohen asked logically. After obtaining the support of the Defense Intelligence Agency, he can see a lot of useful information earlier than the White House and the Joint Chiefs of Staff, and make effective responses in advance. Unfortunately, its very calm in the direction of the bay. Henrion shook his head, then put the information on the desk and pushed it forward in front of Cohen: Its news from the South China Sea. I think you might be interested. South China Sea ??Cohen said as he opened the folder, but the contents were obviously not something that could be read in a few minutes. In the past, he had never quite understood why intelligence documents had to be written in such a long and unfocused way. ?Later I realized that this was Henrions core competitiveness that allowed him to have both sides for a long time It is impossible for political officials to have time to read the content word for word. Even if they read it, they would deliberately add complicated professional terms, so that outsiders can only have a partial understanding of it at best. So the conclusions largely depend on how she reports it. Cohen once tried to find some key points on his own, but even after working as a defense chief for two years, he was still confused by "the bigger the fish, the bigger the thorns, the bigger the thorns, the less meat, the less meat, the smaller the fish." , so the bigger the fish, the smaller the fish." This magical logic is confusing. He can only be glad that the other party is at least on his side for now: So...is it related to China? "Actually, the news came from Annan. As for whether it has anything to do with China...it''s hard to say." ?Henriang picked up the cup and took a sip to soak in the water: Our intelligence officers there reported that an Annan frigate encountered a mysterious wandering incident last week. When the ships GPS system was turned on throughout the entire journey, there was huge confusion in the satellite positioning data and magnetic compass pointing. There happened to be a group of media personnel on board the ship at the time, and reports from reporters and the captain tended to suggest that this was a supernatural phenomenon similar to the Bermuda Triangle. At this point, she didn''t even hold back and let out a chuckle. The defense minister opposite also couldn''t help laughing. The legendary Bermuda Triangle is right next to Miami. With their status, they know that almost all the legends are just fabricated by the media. So, does Hanoi also believe this rhetoric? Cohens tone was a little contemptuous. ?But Henrion shook his head: Of course not, this kind of rhetoric is just to deceive ordinary people. They tend to have some kind of interference with the GPS system, which caused the navigation route to deviate. This is also consistent with the conclusion speculated by our intelligence personnel. ??Cohen wanted to refute, but was blocked by the other party before he could speak: "Because at about the same time when the problem appeared in that report, we had a Helena nuclear submarine in the nearby waters. It happened to make position corrections at the periscope depth and found some similar anomalies. Of course, they were far less exaggerated than what the Annan people reported. " Cohen, who had been smiling just now, had a frozen expression on his face: How is it possible? "The Navy told me before that although the GPS terminals we provided to Annan only have rough acquisition rights, they are all equipped with directional antennas. Unless the Russians use their satellites to send the same signal... But their satellites should also It no longer covers the equator..." ?The preset frequency band of the GLONASS system is almost exactly the same as that of GPS, so in theory it has the ability to disguise itself as the latter. But the Russians clearly have no motive to do so at present. Because of the existence of directional antennas, only signals from the upper cone area will be received, so they will not be affected by interference from other angles at all... What the Navy said is not wrong, Mr. Minister. Henrion shrugged: Actually, there may be many reasons for interference, but based on our past experience, positioning errors caused by purely environmental factors will not be as large as this. So the intelligence services still think someone is up to something? The Minister of Defense felt that the other party''s statement was somewhat similar to those intelligence documents, going around and around, but not giving a definite conclusion. Hand out a non-stick pan. Sure enough, Henrion immediately shook his head: This is the speculation of intelligence personnel and cannot be regarded as our official conclusion. So, this is why I came to you today. ?Cohen did not reply, but gestured for her to continue. I hope you can apply to mobilize a few electronic reconnaissance aircraft to check the situation nearby. This straightforward request made Cohen gasp immediately. ?According to paper regulations, the Minister of Defense is a civilian official who is in charge of administrative affairs. In principle, he does not have the power to command and mobilize the military. ?But we all know that the so-called "can''t in principle" actually means it can. So Cohen must have an idea. But he also had his own concerns, so he did not immediately give a positive answer: "Sending a plane over...the risk is too high..." Operation Desert Storm is coming soon, the Balkans are not clean, and there will be a Chinese delegation coming to visit next week. At this juncture... it is not suitable to do such a thing..." ?Cohen was born in a think tank. Although the main purpose was to make money, the think tanks of the 1970s and 1980s were somewhat genuine. So he knew very well that it was best not to make too many enemies at the same time. ?Henrion, however, was rather disapproving: Mr. Minister, you are a little too cautious. ?She smiled and shook her head and said: Didnt we prove that they were just bluffing at the beginning of the year before last? In just two years, nothing can change. And last month at the development conference, didnt you say we could win two wars in two different locations around the world? ifier ?Cohen almost blurted out that it was just to fool outsiders. How could you really believe it? ?But after a second thought, he realized that the other party was deliberately blocking his mouth. If you think deeply... ?Then the real purpose of sending an electronic reconnaissance plane there may not be just to investigate the cause of interference to the GPS signal. ??But thinking about it, due to Henrion''s relatively special status, it was not easy for him to refuse the other party directly. Otherwise, it is difficult to guarantee whether useful information will be obtained in advance in the future. But if we really want to mobilize a large number of troops at this juncture, that''s not the case. After some struggle, he decided to find a moderate solution: We have an Air Force Intelligence Squadron in Misawa with a staff of 2,000 people and equipped with two EP3E Aries. Although we cannot guarantee 24-hour rotation, it should be able to meet your needs. (End of this chapter) Chapter 639 The threat of China’s domestic Su-27 Chapter 639: The Threat of Chinas Domestic Su-27 ? Therese Henrion had never expected to get an ultra-long-endurance strategic reconnaissance aircraft like the RC135. This time she came here for the EP3E and P3C at Misawa Base. However, although she has never read "Emperor Fan" in her life, she also understands that if you take the method from the top, you can only get it from the middle; if you take the method from the middle, you will inevitably get it from the bottom. ??If the lion doesn''t open his mouth at the beginning, it will be difficult to pull him back later. But now that she got the desired result in just two sentences, she couldn''t help but feel that it was a bit too simple. So I was going to try to see if I could push my nose on my face: The Misawa base is too far away from the target sea area. If there are only two EP3Es, they can only cover about 5-6 hours of reconnaissance every day, which will definitely not meet the requirements. I know that the survey ship Persefinde should have completed its preparations now, can you... Before he finished speaking, William Cohens originally calm expression suddenly became sharp, directly interrupting Henrions words: The White House has special arrangements for the Persephone, and we cant just transfer it to you. "If we strictly follow the regulations, I can''t even transfer the intelligence unit of Misawa Base to you so easily. It''s all because of the past relationship between us..." ??Cohen is now considered a veteran in the workplace. ?As a civil servant with a think tank background, it is impossible for him to be proficient in all matters related to the military, intelligence, finance and other national defense systems, so he inevitably has to rely on people who know the industry to do things. ?These people themselves will also have relevant interest demands. When the fundamental contradiction is not touched upon, Cohen will usually adopt an attitude of turning a blind eye and cooperate. This is also the most important factor that enabled him to gain complete control of the department in a short period of time without any foundation before taking office. But sometimes, even if it is an alliance, it is impossible to allow the other party to make further progress. ?Seeing that the defense minister''s attitude suddenly became tougher, Henrion also knew that there was little room for change in this matter. In fact, as the head of the Defense Intelligence Agency, if she just wanted a few reconnaissance aircraft to cooperate, she could apply through the normal administrative process, and there was no need to risk her personal relationship with Cohen. However, the specifics of this matter are more complicated A few months ago, a Maritime Self-Defense Force submarine lost an unmanned underwater vehicle that originally belonged to the U.S. Navy in an accident. Originally, UUVs have a very high loss rate under normal use. If they are lost in the vast ocean, they will be lost. They are all underwater anyway. If you really want to find them, it is like looking for a needle in a haystack in the physical sense. It makes no sense. Its just that this time the situation is special. It was almost lost under the eyes of others. ??Moreover, the bait mode started before throwing it away, sailing in a straight line at high speed in extremely shallow waters. ??Lending UUVs to China is a private operation. The original intention is that the intelligence agency hopes to cooperate with Japan and get rid of its dependence on the White House and Congress to a certain extent. The result was obviously a failure. ?Of course, if things only happen here, it doesnt matter. At worst, you can make an account at the end of the year and say that you lost it. Anyway, I have done this kind of thing a lot in the past. But before the end of the year, news came that the GPS system might be interfered with... ?Since she already knows about this kind of thing, sooner or later the CIA and other peer departments will also know about it. ??At this juncture, if you say that your department has lost a UUV, you will inevitably be caught and suppressed. So, she had to take the initiative in the investigation no matter what. Absolutely do not allow other departments the opportunity to intervene. The efficiency of the normal process is too low. It is definitely better to go directly to Cohen for private transactions. As for the conclusion, it is not important. ?Let''s check it out in a year or two, wait until the limelight of this matter has passed, and then just come up with some excuse that it was affected by the harsh climate environment or changes in the geomagnetic field. So, thinking that the main purpose of the trip had been achieved anyway, she did not continue to pester her, but changed the topic: By the way, Minister Cohen, I remember you just said that a Chinese delegation is coming to visit next week? Since it is a transaction, when she gets something from the other party, she always has to pay something. Yes, the level is very high, and it will take more than a week. ?Cohen nodded slightly helplessly: But there shouldnt be any content involving practical significance. After all, we only had a tit-for-tat confrontation the year before last. This time...its nothing more than talking nonsense about friendship and mutual trust..." After a little bit of complaining, he quickly realized that the other party would not talk about this topic to him for no reason: Or do you have any news about this delegation? Henrion mentioned this just to set the stage, and immediately denied it: Thats not true. "However, there are some news involving China, but due to the lack of cross-information verification, a systematic report has not yet been formed." Hearing this, Cohen''s eyes lit up. For a senior intelligence chief like Henrion, in order to ensure that the pot does not stick to the pot and write it into the intelligence document to form the official content of the written record (such as the one she just brought over), the first thing to do is to prepare without making mistakes, but accordingly often The timeliness is very poor, or it is just nonsense. On the contrary, the content of this kind of oral information may not be true, but it is often very useful. ?Hence, he quickly made a gesture to let the other person continue. The Su-27 produced by China itself is called the J-11 fighter jet, and it is very likely that it has begun to be delivered to the troops in batches. ?Cohen was a little surprised at first, and then he couldn''t help but show an expression of satisfaction. To him, the strength gap between the two armies will not change at all just because of a mere advanced fighter jet. But this kind of news could be a reason to ask for more defense budget next year - ?Even China has begun to equip domestic third-generation fighter jets in batches. As a great superpower, wouldnt it be okay if we also use the same third-generation fighter jets? So we must increase money quickly and produce two fourth-generation fighter jets as soon as possible. As the Minister of Defense, his job is to collect money, distribute money and spend money. So, what about the quantity? Whats the quantity? ?Cohn didnt care about the technical aspects of the military, but he needed a similar number to scare the senators. Our informants have been squatting near Shengjing Beiling Airport for several months and have discovered a total of 16 so far. ?This made the Defense Minister feel a little disappointed. ?Even if others dont understand military affairs, they at least understand mathematics. 16 aircraft, which is one percent of the total number of third-generation aircraft in the US military. ?It seems difficult to render it a particularly big threat... Henrion naturally knew what the other party was thinking at this time, so he continued after a short pause: The number so far is not large, but we have received news that the Chinese will soon be able to fully domestically produce this aircraft instead of buying parts from the Russians for assembly. By that time, there will be no limit to the speed at which they can produce aircraft, and we wont even be able to estimate the quantity Obviously, she was not really aware of the crisis, but was simply sending a message to the Minister of Defense. Across the desk, Cohen has begun to think about how to make use of such news. He has a background in think tanks and has many resources in this area, so it is not difficult to operate. ?However, he still symbolically continued to "care" about the specific content of the intelligence: Other parts are easy to say, but I think its impossible for the Chinese to produce their own engines in a short period of time, so just pay attention to the number of engines they bought from the Russians, and you can roughly calculate it, right? Thats still the case for now. Henrion felt that revealing this news should be regarded as an exchange of equal value, but Cohen had no intention of ending the conversation, and she could not just say goodbye and leave, so she had to continue: But its hard to say in the future. A lot of recent information shows that they may complete the localization of the power system within a few years. Within a few years? The Defense Minister''s expression was slightly shocked, and he quickly thought of the only possibility that he thought could make sense: Are the Russians so poor that they even sold this technology? ?Although Cohen doesnt understand technology, he at least has common sense. Huaxia has almost no experience in turbofan engines, and it is impossible to solve the power problem in such a short period of time by itself. So it can only be the Russians who transferred the technology along with the aircraft. We dont have very reliable information about this matter yet. Henrion shook his head slightly: "The Russians replaced a new head of the Federal Security Council in July, who also serves as the Secretary of the Federal Security Council and the First Deputy Director of the General Office. He has unified management of intelligence and is not easy to deal with. He has always been with us before. Several cooperating informants have also lost contact recently. However, judging from public information, China has signed several large orders with a Moscow company specializing in the import and export of high-tech products in the past two years, including hundreds of engines for civil aircraft and related technology transfers. " If this is the case, then it seems reasonable that they conduct military aircraft engine transactions in a non-public manner. (End of this chapter) Chapter 640 Air Police 2000, a small move by the Kingdom of David Chapter 640 Air Police 2000, a small move by the Kingdom of David After all, William Cohens focus is not on the threat posed by a third-generation fighter jet itself, but on how to gain more benefits for his department by exaggerating the Chinese threat. Therefore, after a nonsensical discussion, he quickly gave up on continuing to delve into the specific technical sources of China''s domestic engines. Rigorous military intelligence is one thing, but using think tanks and media to build public opinion is another. People will always believe what they want to believe. ??Among the hundred men in the Senate, there are absolutely no more than one who can really go through the procedures and carefully read the documents of intelligence agencies. So the focus is on 70% true and 30% false, and make reasonable deductions based on certain basic facts. There are only two possibilities for the Chinese to produce Su-27 domestically. First, the Chinese people hid it from the rest of the world and secretly spent several years developing an aeroengine and installing it on an airplane; The second reason is that the Chinese bought military engine technology from the Russians. ? To convince non-technical senators, the point is not what the truth is, but rather which version of the story they will prefer Obviously the second type. Because this is more in line with an Americans understanding of the world. ??And it can also bring old opponents and new opponents together, further exaggerating the challenges that the US military will face in the new century. After all, even though the Cold War is over, no one really regards the Russians as friends. This has nothing to do with the other partys position. But simply, the empire needs an enemy. Otherwise, if the world is truly peaceful, wouldnt tens of millions of water workers who rely on war and arms sales all starve to death? Well, thank you very much for bringing this news. ??Cohen raised his wrist and looked at his watch. He felt that the time was almost up, so he changed the subject and prepared to end the conversation. Henrion opposite had already had this intention. After a few polite words, he got up and left the Office of the Minister of Defense with the intelligence document. After watching the other party disappear through the door, Cohen picked up the phone and dialed the number of his secretarys office. Make an appointment for me with Mr. Daniel Mitnick, the head of the Intelligence Select Committee. Yes, the sooner the better. ?This Intelligence Selection Committee is the department where Cohen served before becoming defense secretary. Although the name sounds like an intelligence unit, it is actually a private think tank with no official background. In the past, it has always been in a situation where the reputation is very famous, but the influence is not very big. However, in the past two years, due to obvious reasons, they have begun to gain opportunities to cooperate in depth with the national defense system, and their reports have been adopted more and more frequently, and there is even a tendency to develop into semi-official think tanks. At about the same time. Huaxia, Beijing. ?Although it is almost late at night, several rooms in the office building of the Commission of Science, Technology and Industry for National Defense are still brightly lit. An emergency internal meeting is being held here. Meetings like this were actually not uncommon a few years ago. ??As a department in charge of national defense industry construction and military technology development, whenever there are any shortcomings in key national projects, it is basically inevitable to hold meetings until late at night. ? Its just that in the past two years, the frequency of problems with national key projects has significantly decreased, so the number of people being called back urgently after get off work has significantly decreased. This time, naturally, something went wrong because of a certain key model. ?In the conference room, Ding Gaoheng, who was almost regarded by everyone as having quit smoking, was puffing away smoke for the first time, with a grim expression on his face. After taking a long puff of cigarette, he finally broke the dead silence: "Lin Hai, let''s talk about the current specific situation of the Ring Project." The Ring Project, which is an early warning aircraft project jointly developed by China and David, plans to use the IL-76 platform to carry the Falcon radar system developed by the latter. We seek to obtain an early warning aircraft with sufficient performance within a relatively short period of time. Although the contract was officially signed more than a year ago, China Aviation Technology Import and Export Corporation, Davidson Elta Corporation and Damao''s Beriev Aviation Manufacturing Company had already had many contacts for this purpose before that. So, in the first year after the official launch of the project, the overall progress was very rapid. Even at the beginning of this year, a prepared Il-76TD transport aircraft was sent to the Kingdom of David to conduct flight tests after installing a disc-type radome. ?However, after that, the ring project did not usher in the next key node according to the preset timetable. Of course, it is normal for this kind of cross-border cooperation, especially cooperation between three countries, to experience some delays as the depth increases. But as time passed, the technical staff involved in the project in China gradually realized that something was wrong, and after collecting some evidence, they reported the news to the country. This is how we have todays meeting. Director Ding, according to the report of the leader of our technical delegation stationed in the Kingdom of David, Elta Company is probably deliberately delaying the research and development progress of the ring project. In April this year, the 14-meter radome required for the early warning aircraft had been transported from Taganrog to the Kingdom of David, and even underwent assembly testing, but the combined test flight was not immediately carried out. "The reason given by the Great Patriotic State at the time was that because the Il-76 we provided was an old aircraft, some of the airframe details did not match the drawings provided by Beriev Company, and forced assembly might be risky. They needed to The structural deformation of the aircraft is measured and the necessary adjustments are made to the installation method of the radome. "At that time, Beriev Company believed that this statement was untenable. The reason was that although our Il-76 was eight years old, it had only flown for less than 300 hours in total. It was impossible for it to appear enough to affect the radar. The deformation of the cover installation has been modified before using platforms with longer flight times, and they have never encountered this problem. " However, we considered that the ring project involved a lot of work after all, and as long as there were risks, we still had to eliminate them, so we adopted the advice of the David Kingdom and re-examined the structure of the aircraft. But from that time on, Elta began to hinder the project development process for various reasons. After repeated urging by us and Beriev, it was not until last month that the radome was installed in Iraq. On the Er-76, various reasons were used to postpone the first flight of the combination..." Following Lin Hai''s introduction, most of the other people present at the meeting showed anger. Even several deputy directors are like this. In recent years, China''s foreign cooperation in the aviation field has increased, but it is rare to encounter such a thing. Even Airbus and the European Aviation Administration, no matter what others think in their hearts, at least on the surface they have an attitude of equality and reciprocity. ???Those leaders of the national defense industry system, although they dont say it in words, they definitely feel proud. ??Now that someone is showing off like this, it is naturally impossible for him to just swallow this sigh of relief. Just a Davidic kingdom would probably not have the motive to do this. Huai Guomos tone of voice was much sharper than usual: Look, there might be some Americans causing trouble behind here. No matter who is behind it, it is absolutely unacceptable to use such small means to stumble us in the dark! ?Zhang Dongxu almost slammed the table when he heard half of it, and now he is obviously suppressing his anger: The current plan is to put pressure on the Kingdom of David. We have spent 350 million US dollars, not to let them work hard. ?Amidst the voices of expressions and condemnations, Ding Gaoheng, who was sitting at the head, also frowned slightly, but never spoke. ??The fact that David would make small moves in the ring project was not a surprise to him. Because Chang Haonan raised this possibility more than a year ago. ?At that time, it was just a reason to launch the domestic early warning aircraft backup project, but now it seems... Seems more like a prophecy (End of this chapter) Chapter 641 "Waiting until the turbofan 10 is finalized" Chapter 641 Waiting until the turbofan 10 is finalized Things to put pressure on the Kingdom of David must indeed be done. ?After being silent for a long time, Ding Gaoheng lit a cigarette again and said, which was the final word: However, from our perspective, we must also be prepared that the entire ring project will not be able to proceed. Generally speaking, by the time he expresses his stance, the meeting has basically entered the final stage. At most there will be some detailed corrections. But this time, after he made his statement, there were only a few people at the scene. Its not that everyone has any different opinions on this, its just that they were simply shocked by such a big plot twist. ??There is quite a sense of beauty when playing chess, the opponent will make a normal move, and you will be blown away with the table and the chessboard, and then another American Iai Slash will kill someone else. After all, normally speaking, even if it is possible that the project will fail, there should be a period of delay in the middle. In fact, judging from the experience of past cooperation, 80% of the city has turned around. ?Just like when airborne equipment was introduced from Western countries in order to develop the J-7M and Qiang 5C, a similar situation occurred. But in the end, the transaction was still completed normally. ?Furthermore, if the table is turned over just like that, even if the 350 million yuan paid in advance can be recovered, it will definitely take a long time to negotiate. ?Although the country''s foreign exchange reserves have been filled up a lot in the past two years, they are not to the point of not taking so much money seriously. Even Huai Guomo was a little confused. ??Although he had heard Chang Haonan''s analysis of the ring project, he did not listen to everything compared to Ding Gaoheng. So on the one hand, I can understand the brain circuit of the other party making such a radical decision, but on the other hand, I can''t help but feel a little pity like everyone else. In the end, I have worked with Ding Gaoheng for the longest time, and although he holds the title of deputy director, his level is actually the same as the former. Zhang Dongxu was the first to come to his senses: Director Ding, although we have to prepare for the best and plan for the worst, is it a little too early for us to plan for the worst? ??Except for Huai Guomo, the other two deputy directors had little contact with Chang Haonan before. They had met a few times during the previous leadership team expansion meeting, so naturally they didn''t know Ding Gaoheng''s ideas. Definitely not early. Ding Gaoheng replied almost without hesitation: In this case, we can definitely think that David was not prepared to complete the ring project at all. Now they have not directly stated that they want to terminate the project, but they are just leaving a bait hanging on our side. The plan is to put us in a dilemma, not to be willing to part with the sunk cost of 350 million US dollars, and to waste as much time as possible. At this point, he paused for a moment, and his eyes calmly scanned the crowd in the conference room in front of him: So, we have to use our tactics to deal with each other, and on the other hand, we must use the fastest speed to apply for allocating subsequent resources to domestic models! In fact. Before today, he had a conservative attitude towards Chang Haonan''s previous words. So we made two preparations. On the one hand, we narrowed the threshold of psychological expectations for the Ring Project. On the other hand, we allocated some resources to the Air Police 200 project so that we would have a backup in case something went wrong. ?This has nothing to do with trust or not. Mainly because the matter is big. It is impossible for him to make a 180 change just because of someone''s words. Even if this person is Chang Haonan. ?However, what is happening now proves that the other partys concerns at the time were completely accurate. ??Moreover, all the details can be matched! ?This made Ding Gaoheng couldn''t help but recall the first time he had a phone call with Chang Haonan two years ago. At that time, we even contacted the other party through Du Yishan. Almost the same plot. It''s just that the content of the discussion between the two at that time was the development route of China''s aviation industry. Later, it was also through Boeing''s acquisition of McDonnell Douglas that Chang Haonan''s idea was completely correct. ?Two years have passed now, whats the result... Needless to mention it. ?Who would have dared to imagine before that a European aviation company would take the initiative to seek cooperation? Who dares to imagine that China can achieve reciprocal and mutual recognition of airworthiness certification with Europe and the United States? The results have now been realized. In this case, with the opponent''s ambitions already half-clarified, Ding Gaoheng''s balance has naturally tilted... ?At this critical moment, Huai Guomo also figured out the ins and outs of the whole thing. He first broke the silence and expressed his support for Ding Gaohengs idea: "Everyone, looking back at our external cooperation projects in the past few years, all the projects that were ultimately successful, whether it was MA-60 or Project 11, were all based on the mutual complementarity of each other and mutual dependence. To put it bluntly, that is Holding each other''s lives tightly." "But the ring project, although it is still an equal cooperation in name, in fact, we are only paying for it. Although the unit price of 350 million US dollars per aircraft is high, after all, Elta is not on the verge of exhaustion like Tupolev.???? "In other words, in this project, we have no chips other than flipping the table. In other words, there is no possibility of gambling. " So, I think what Director Ding just said makes sense. ?This kind of internal meeting is not entirely a one-word meeting. But now that the director and the first deputy director are on the same side, there really is little room for others to operate. What''s more, the explanations given by the two people, especially Huai Guomo, who just laid out the facts and made sense, are still convincing. Zhang Dongxu, who had hesitated just now, also followed the good advice and no longer insisted on his own opinions: Thenif the Kingdom of David resorts to procrastination, how should we operate to completely decouple from the other party as soon as possible? The decision-making level for the Ring Project is so high that even Ding Gaoheng cannot fully make the decision. So what he just said was just be prepared to not be able to move forward. Concerning this issue, Ding Gaoheng has already had a draft in his mind: In the middle of last year, after the embankment construction operation ended, we launched the Air Police 200 project based on the Y-8 platform at the suggestion of Comrade Chang Haonan. Comrade Haonan personally participated in part of the design work at that time. However, because it has always been a backup project, the resources allocated are relatively limited, and it has not yet reached the stage of test flight. "First, let''s divert some of the resources in our hands. Anyway, if the David Kingdom continues to delay like this, we don''t have to pay for the next node. As long as the 14th Institute of Electrical Engineering and the Air Police 200 of Shaanxi Aircraft can take the lead in the first flight. When the efficiency of the two sides is compared, the gap will be immediately apparent, and the superiors will naturally have confidence in the independent model. " ?This arrangement was basically seamless, so it was quickly unanimously approved. ?However, after the vote was passed, some people still raised doubts: "Director Dante, after all, the Ring Project uses an IL-76 to modify an early warning aircraft. If the Air Police 200 is a Y-8 platform... then there should be no way to completely replace it regardless of the size of the radar equipped, or the range and airtime. " After the decision was made, Ding Gaoheng finally relaxed a little. But what follows is the feeling of tiredness that has just been blocked by the senses. After all, he is also a person rushing to reach 70 years old. So he nodded while packing his things: In the long run, we will naturally need a larger platform. But the most urgent task is to prove through the relatively short and quick project of Air Police 200 that we can build our own early warning aircraft without the need for David. After the meeting, Huai Guomo, who knew more about the situation, followed Ding Gaohengs footsteps: Old Ding, I think you have further ideas, right? ?At this time, he had left the conference room, and the cool breeze in the autumn night had relieved a lot of the sleepiness he had just felt. It does exist, but it cannot be considered mine. He replied simply: When we made the decision to introduce the Tu-214 passenger aircraft as the C909 model before, Xiao Chang mentioned that the 110-ton model is very suitable as a platform for special aircraft including early warning aircraft. "It was only the end of 1996, and the contract for the ring project had not even been officially signed, so I just thought it was a casual comment. But thinking about it now, I am afraid that he has been planning for us to independently develop an early warning aircraft since then... " Happy for the country, dont be speechless for a moment. Chang Haonan almost took care of everything. After a short pause, Ding Gaoheng waved his hand again, and then changed the topic: But this matter cannot be rushed. The two projects that Xiao Chang is currently working on are at a critical period, especially the Turbofan 10, which will be the core of our countrys main equipment for at least the next twenty years. We will definitely not be able to allocate our energy at this time. Haiguo Mo immediately understood: That...means to wait until the turbofan 10 is finalized... "right." Ding Gaoheng, who had guessed his idea, nodded slightly: Lets lay out relevant resources first, and then let him take over this large-scale early warning aircraft project after the Turbofan 10 is finalized. Hearing this arrangement, Huai Guomo showed a hint of joy, but then he seemed to think of something: However, the turbofan 10 is not inferior to the turbojet 14 which was already in service. It fell down after it was finalized. We must continue to improve it. Xiao Chang...can he really let go?" Is this... Ding Gaoheng raised his head and looked at the crescent moon in the sky: "According to Xiao Chang''s statement in the project progress report, the core engine of the Turbofan 10 only needs a few improvements to become a genuine fourth-generation engine. However, our country''s material level and production process are too lacking. , many places are reluctant to even produce third-generation engines, so they compromise on producing such a third-generation and half-performance turbofan 10. "So major follow-up improvements will probably have to wait for the previous stage before the project can be officially launched. As for the small improvements based directly on the turbofan 10... I think Xiao Chang has concentrated more than half of the country''s aerospace research efforts on it. The competition must have the purpose of training talents through the project, and it should not require his direct participation. " So, it shouldnt be a problem! (End of this chapter) Chapter 642 Turbofan 10, installed! Chapter 642 Turbofan 10, installed! ?In order to prevent Chang Haonan from being distracted at the most critical stage of the project, Ding Gaoheng did not immediately notify him of David Guo''s mischief on the early warning aircraft project. So the former didnt know yet that he had been booked in advance. Of course, in fact, he himself has already had the idea to develop an early warning aircraft based on the C909 passenger aircraft platform. I didnt have the conditions before, and I really didnt have enough time to do it. According to the current progress, the design of Turbofan 10 should be finalized by the end of next year or the beginning of the next year. As for the heavy-duty die forging press, it can currently keep up with the National Day gift schedule, and it will not be a problem to start trial production in the middle of next year. After solving the equipment problem, Hufei can start producing C909. ? ? It will definitely be assembled from parts in the beginning, but in any case, with the technical data, especially the technical data involving the airframe structure, the prerequisites for modification as a special aircraft platform will be established. At that time, the prerequisites for the development of large-scale early warning aircraft will be basically mature. So, the two peoples ideas actually coincide with each other. However, Chang Haonans attention is still entirely focused on the turbofan 10 project in front of him. As an engine that was developed from scratch starting from the core machine, the workload of bench testing is indeed very large. In order to improve test efficiency, Institute 624 even temporarily modified the SB102 test bench originally used to test turboshaft/turboprop engines. Liming Factory also temporarily arranged the production of a second B0102 prototype to participate in the test at the same time. Even so, with most of the subjects passed in one go, it still took almost three months for the bench test to complete the core projects before the installation and flight test. ? Jiang Fuhe took the test results that had just been printed out and found Chang Haonan who was in the control room to sign: The results of the proportional life test show that Turbofan 10 has a confidence level of more than 98% and can meet the design specification requirement of an overhaul interval of more than 1,500 flight hours. According to our standards, at this point, the engine can begin installation experiments. The latter had already seen the results before the report was printed, so there was no need to waste any more time at this time. After a little confirmation, he signed his name at the end: So my work here is basically over, and other subsequent projects will be handed over to Mr. Hai. ??As he spoke, he looked at Haiyide, who was wearing a cotton-padded jacket but was still protected from the cold and humid weather in the south. Dont worry, I promise to leave the subsequent test data in your hands with high quality and quantity. ??The latter''s voice was still a little trembling when he spoke, but he could still be heard with confidence. Chang Haonan just gave a routine instruction, but he was not really worried. After all, although Haiyides past resume is average (compared to Chang Haonan), he is still an old man who has participated in the development of several models, and his basic skills are not a problem. ??The following test items, mainly the full cycle life test that cannot be started until B0103 is shipped, are more time-consuming and energy-consuming. The rest just need to be done step by step and according to standards. The so-called full cycle life test is to actually use an engine until it is scrapped. The corresponding one is the proportional life test that Jiang Fuhe mentioned just now and was just completed. The latter is to allow the engine to perform specific cycle conditions, thereby shortening the test time according to a specific ratio. ?For example, if Chang Haonan chooses a time ratio of 1:3, it only takes 500 hours to simulate the 1,500-hour test time under normal circumstances. ?Of course, since it is a simulation, it cannot be restored 100%. So there is a question of confidence. This is mainly to shorten part of the process and allow the installation test to start in advance. That is what Chang Haonan is about to deal with. Now that Chang Haonan wants to fly back to Shengjing, he naturally does not need to fly to Taoxian Airport first like before or what most people did, but directly lands at Beiling Airport. Especially since I was going to Factory 112 this time. Mr. Chang. As soon as I got off the plane, I saw He Ming, wearing work clothes, leading a few people to the tarmac to greet him. Junior brother, long time no see. ? Walking behind was senior sister Yao Mengna, who had not seen Chang Haonan for almost a year. The latter has been responsible for optimizing the final assembly efficiency of Project 11 during this period, as well as dealing with the weight reduction issue of the improved new airframe. After these two years of experience, she has become a bit like the stereotype of a female doctor. Looking at the high-spirited Chang Haonan who had just stepped down from the ramp of the business jet, Yao Mengna suddenly had the urge to go up and hug him. ?However, she also knew that the current occasion and time were not right, so she quickly suppressed that feeling in her heart. Mr. Chang, the No. 1010 verification machine has basically completed its final assembly and is now parked in the workshop. Do you want to go and take a look? ?He Ming felt that the atmosphere seemed a bit strange. Although he couldn''t put it into words, he still keenly changed the topic to work. So fast? Chang Haonan originally thought that he would have to wait for a while before he could start the installation and test flight after arriving at the place. After all, the verification aircraft was quite different from the mass-produced model, and it was a product that required special assembly. However, the efficiency of Factory 112 obviously exceeded his expectations. "Lingming Factory delivered the B0201 machine at the end of November last year. Then we selected several shifts with the best technical skills and work attitudes among the comrades in charge of final assembly, and worked overtime to complete the No. 1010 machine ahead of schedule. As He Ming explained, he turned around and led Chang Haonan towards the assembly workshop which was not too far away. ?Beside the pulsating production line that has gradually begun to exert its power, a two-seat Flanker fighter jet painted in yellow is parked alone. ? It was originally supposed to be one of the first batch of J-11S, but it was selected for installation testing of the turbofan 10 engine during the component production stage. Hence the number 1010. Chang Haonan passed the other six aircraft being assembled on the production line and walked quickly over. At first glance, there is no obvious difference between this aircraft and the ordinary Su-27UBK. But if you go around the rear hemisphere, you will find that there are obvious differences in the tail nozzles of the two engines. The right engine is still the same AL31F as other Flanker series. ??However, the left engine does not have the common convergence adjustment piece, but is composed of a full circle of fixed and immovable metal pieces. There is another layer inside. That is, the ejection nozzle. ?Compared to the convergent-expansion nozzle that applies the Laval nozzle principle, the ability to adjust the airflow under low-altitude subsonic conditions is slightly worse, but the advantage is that many fish scales and connecting rods are eliminated. It is lighter in weight and can greatly simplify the mechanical structure. For China''s current production level, this is a huge benefit. In addition to this most obvious difference, there is also the fact that in order to be compatible with the analog-mechanical control system of the right AL31F and the full digital control system of the left turbofan 10, this No. 1010 machine is simple and crude between the belly inlet. A cable duct is installed. Considering that the aircraft engine test aircraft does not need the two heavy-load hardpoints at this location, there are no other problems except for the ugly point. Chang Haonan circled the plane, then stopped directly behind the plane, then raised his head and stared at the two tail nozzles for a long time. Finally caught up ? He ??stretched out his hand upwards, gently pressed it on the outer surface of the exhaust nozzle of turbofan 10, and murmured in a low voice: The third-generation mobile phone that is 100% domestically produced will be coming soon (End of this chapter) Chapter 643 J-11 turbofan demonstrator Chapter 643 J-11 Turbofan Demonstration Machine ?Although the engine was designed by Chang Haonan himself, he still couldn''t hold back his curiosity. He leaned over and took a look inside the tail nozzle. With the help of almost ubiquitous light sources inside the factory to eliminate shadows, every detail deep in the afterburner can be easily seen. The structure of the hot end outlet of the engine has a panoramic view. ?The petal-shaped flame stabilizer, the surrounding fine atomizing fuel nozzles, and through these structures, the turbine disc and turbine blades can still be seen faintly... ?Like a finely carved work of art, every part is carefully placed. ? Over the past few months, Chang Haonan has basically been staying with the two batch 01 turbofan 10 prototypes participating in the test every day except for sleeping time. It is no exaggeration to say that he can figure out how many pipes and cable connections there are on the surface of this type of engine as soon as he closes his eyes. Its like having a 3D rendering module installed in your head. but. The feeling of an engine fixed on a high-altitude platform is completely different from that of an engine actually installed on an aircraft. Like lifelike statues and real people with flesh and blood. ?It seems there is not much difference, but the latter has unique vitality... The supreme interpretation of steel and technology, the beautiful romance of precision machinery. Even an ordinary person, as long as he takes a look at Chang Haonan, can instantly understand why aero engines can be called the crown jewel of industry. Even Chang Haonan, who led the entire project research and development process, felt a little intoxicated for a while What, I seem to be pretty good... Looking at the scene in front of him, his inner sense of satisfaction and accomplishment instantly filled up. Although Chang Haonan''s own inner drama was very full, he could hardly feel how much time had passed. To outsiders, this scene is just staring at the chrysanthemums of a fighter jet in a daze. And I was in a daze for a long time. But the people standing around had basically worked with the former during the August 3rd Project, and they knew how outrageous the other''s mind was. One person can handle three or four unrelated tasks. ?How does one look like someone who is in a daze? So, they naturally think Mr. Chang is in a daze, so he must be thinking. Since you are thinking about it, it must have deep meaning. So, the longer you think about it ?Finally, someone couldn''t hold it any longer, so he came to He Ming''s side and whispered: "Mr. He...Mr. Chang, he...couldn''t he see some problem?" ?This verification aircraft numbered 1010 is a separate project, named J-11WS, and the leader is the latter himself. So He Ming''s subconscious reaction was to shake his head confidently. ?However, when he was about to open his mouth to deny it, the words came to his lips and he was a little unable to come out. It would have been better if the person just didnt say anything. But now after being mentioned in this way, he also felt a little guilty. Should...cant? After he stopped talking for a while, He Mingcai replied in an ambiguous tone: We have to conduct an additional inspection after each major step in the final assembly process. It is unlikely that there will be any major problems. "And...even if there is a problem, it won''t be visible with the naked eye..." ?These two sentences are more like explaining to myself than explaining to others. Fortunately, the effect is good, and the slight mental fluctuation has finally stabilized again. On the other side, Chang Haonan finally came to his senses after wandering around the tail vent for a while, turned around and looked at the other people again. This plane As soon as he opened his mouth, he didn''t know if it was an illusion, but out of the corner of his eye, he saw the bodies of several people on the opposite side shaking violently. Although it felt a bit strange, he only paused for a moment, and then continued to ask: "What parts of this plane are still unfinished?" The moment he heard this question, there was a burst of relief around He Ming. It doesnt just mean that there is something wrong with the plane. The flight control system still needs final debugging. He Ming finally felt relieved and immediately replied: The control rate of this aircraft is really weird. Not only that the thrust of the left engine is more than 10% higher than that of the right engine, but the control methods of the two engines are completely different. Especially, the turbofan 10 is compatible with full-authority digital control. In this way, when the throttle valve moves, the flight control needs to provide feedback from both analog and digital levels, direct and indirect, at the same time. Its not difficult to take these things apart individually, but putting them together still requires more work to ensure the basic controllability of the aircraft. Although he was talking about the difficulties he was facing, his tone was obviously quite brisk. After all, for China Aviation Industry, these are all happy worries. ?? They have not never built similar aviation engine verification aircraft in the past, but the main concern at that time was whether the engine would catch fire and explode midway, affecting the safety of the entire aircraft. For this reason, some proven models even specially arrange a complete hydraulic control system for the left and right engines as a backup to prevent the other one from being affected after a single engine failure. ?Situations like the current situation where domestic engine thrust is so powerful that the plane easily yaws are also technical problems, but they can definitely make everyone laugh out of their dreams. Do you need my help? ?Chang Haonan patted the little engine oil that had just been stained on his hands, returned to where the other people were standing, and asked at the same time. He Ming waved his hand: "That''s not necessary. When we were preparing to develop the J-11WS, we worked with the 601 Research Institute to replace the J-8 II ACT with a turbojet 14 and tested the core control algorithm. It was basically straightened out. " This time, the main reason is that the distance between the two engines of the J-11 is relatively far, so when the thrust is unbalanced, the yaw problem will be more serious than that of the J-8IIACT. Just slightly correct the parameters. Now, after the tempering of two consecutive projects, Project 83 and Project 11, China''s domestic aviation technology research and development capabilities have obviously reached a new level. ?This is naturally a good phenomenon, and can liberate Chang Haonan from some trivial projects to a large extent. Just like the J-11WS. ? Strictly speaking, this aircraft is not part of the Turbofan 10 project, but it is indispensable for the Turbofan 10. ??If he needs to be personally responsible for completing it like the engine itself, then the entire project will probably be delayed by at least a year than it is now. Now that the other party said that he could complete it on his own, Chang Haonan naturally would not forcefully ask for an intervention, but simply changed the topic: By the way, I heard from my senior sister before that Shengfei purchased two new supercomputers from Sugon Group this year? He Ming was stunned by the huge jump between the two questions, and then nodded: "Yes, there is the Sugon 2000-1, which was developed in the second half of last year. Its performance can probably catch up with the international level in 1993-94. There is also the Sugon 2000T, which was jointly developed by Sugon Group and your Torch Group. model, it is said that the calculation efficiency of TORCH Multiphysics is specially optimized from the hardware perspective. Is Dawn 2000T already available for purchase? ??When Chang Haonan received three National Science and Technology Awards early last year, he discussed the idea of ??"bundled sales" with Academician Li Jie, director of the Institute of Computing Technology of the Academy of Sciences and chairman of Shuguang Group. However, the difficulty of this idea is actually mainly in the hardware. There is not much that Torch Group needs to do. It only needs to peel off some of the functions of the professional enhanced version and add them to the professional version, and customize Sugon 2000T for public release to global users. The authorized version is sufficient. So he entrusted it to the technical staff below, and basically didnt pay much attention to it despite his busy schedule. ?As a result, just one year has passed, and Shuguang Group has even brought out machines. The efficiency is really a bit ridiculous... It hasnt been officially released yet. Its in the public testing stage. Sugon Group promised that if there are any problems in the future, it will be responsible for after-sales maintenance, so we bought it in advance. ?He Ming briefly explained the origin of this machine, and then changed the topic: Mr. Chang needs to use supercomputing now? "right." Chang Haonan naturally didnt need to be polite to this person, so he replied simply: I promised others to help me study the applicability of several algorithms before, so I have to give it a try with a supercomputer. Its okay. ?Of course He Ming could not refuse, but after agreeing, he hesitated: But it only takes us two or three days to integrate the new flight control. Your research..." Chang Haonan waved his hand: Two or three days is enough. Those algorithms are all derived from my results, so there is no difficulty..." He Ming was speechless for a moment. Thenanyway, the computer room management knows you, so just go and register. (End of this chapter) Chapter 644 Take off, that’s great! Chapter 644: Lets take off, its so cool! ?The timetable promised by He Ming was by no means an empty lie. ? It took them only three days to complete the last piece of the puzzle on the No. 1010 technology verification fuselage. After all, No. 1010 is a highly confidential verification aircraft, so after completing all in-factory testing processes, there is no traditional red flower and ribbon link. Everyone, including Chang Haonan, just held a brief ceremony in the final assembly workshop to celebrate the J-11WSs achievement and preparation for its first flight. I never dreamed before that it only took about a year and a half from the time when the first large-component J-11 rolled off the assembly line to when the J-11 was equipped with a domestic engine ?When everyone applauded, Luo Shida, standing next to He Ming, said with emotion. ??It''s a bit like talking to myself, but several people nearby can still hear it. The latter, as a retired comrade, was initially rehired to do some translation and format conversion tasks of Russian drawings. It was expected that the job would be over after a few months. But which veteran cadre can withstand such a test of a domestically produced heavy-duty fighter jet? A few months later, Luo Shida could not leave. Then, I have been rehired until now... Its not just domestically produced. Although He Ming''s main business is machinery manufacturing and he did not have the opportunity to participate in the design review and detailed plan design the year before last, he had participated in the China Aviation Development Industry Conference as a specially invited technician the year before last, and the J-11WS technology The person in charge of the production of the verification machine still knows something about the turbofan 10: "I have talked with engineers from the 606 Institute and Liming Factory before. The technical solution of this turbofan 10 is not only completely different from the American CFM56 core machine, but in my impression, no other country has used a similar design. It is completely made by our own hands, which is equivalent to starting from scratch. This is the most difficult part..." "Um?" Luo Shida was re-employed. Although his status was not low, he had no official status after all. He almost deliberately rarely asked about things other than Project 11. At present, there were not many updates on the knowledge of Turbofan 10, except for some that almost everyone knew. Except for the rumors, it is still basically the time before retirement. So after hearing this, I was immediately stunned: "I heard that this project was re-established the year before last. Lao Zhang took the initiative to report that he was going to build a naval gas turbine, but it took two years to produce the product... The overall technical plan should not change much, right? "Um" He Ming knew that the other party''s analysis was actually very reasonable, but the problem was that some people were unreasonable at all, and it was not easy to explain for a while. In addition, the ceremony was about to end, so he had to make a long story short: In short, the current turbofan 10 has basically no technical relationship with the previous turbofan 10, except that they both use the same equipment number. After explaining, perhaps because he was worried that he was not convincing enough, he added another sentence: Mr. Luo, do you think that if you still use the CFM56 core machine, how can it be possible to achieve a thrust-to-weight ratio of 9? So it must be brand new..." Luo Shida just couldn''t update information quickly enough because he was retired, and his thinking ability was still fine, so he realized that He Ming was right after a quick thought. But compared to using CFM56 as the core machine to achieve a thrust-to-weight ratio of 9, he still feels that the possibility of coming up with a new engine in two years is smaller. So, after these two ideas collided, Luo Shida came to a conclusion- The superiors obviously worked on two projects, one overt and one undercover. The turbofan 10 on the surface was a replica of the F110 engine, and it was stumbling along the way. This was a way to hide the incompetence and make others relax their vigilance, while the secret project was to start from scratch. In the beginning, under the cover of the former, he finally succeeded in cultivation, and the year before last, he returned to the sight of ordinary people by borrowing corpses and reviving them... Simply perfect! ?Thinking of this, Luo Shida raised his head again and looked at the back of Chang Haonan standing in the middle of the crowd. By the time he was invited out of the mountain, Project 83 had already been finalized, so he had never met the latter directly. He had only heard some mysterious rumors. I used to wonder how one person could be responsible for so many projects at the same time, so I always thought he was the kind of person who uses his strong background to gain fame and reputation. ??But if the facts are as he thought just now, then this kind of scheming to change the situation must have been thought up by the other party. It seems that he is really a master... ??In short, although the analysis was wrong, in the end, due to the collision of errors, the correct conclusion was reached... At this time, Chang Haonan also took a step forward, came to the front of the stage, and cleared his throat: I announce that the J-11WS technology verification machine has officially completed its final assembly and is ready to leave the factory! As he finished speaking, an aircraft tractor that had already fixed the tow bar to the front wheel of the aircraft started and slowly drove towards the door of the workshop. Compared with a few days ago, this aircraft has now been painted with the same painting as the Air Force Su-27SK/J-11, and the aircraft number has been deliberately concealed to avoid any clues being seen during frequent flight tests. . After all, although the camera is pointed at the airport and life is walked into a prison cell, in terms of operation, there are so many places where you can use a telephoto lens to capture the takeoff and landing of the plane, and it is impossible to capture it completely. Considering that the technology of the J-11 is relatively mature, there is no need for the same aircraft to conduct continuous test flights. Moreover, the original yellow paint is quite eye-catching and can be seen clearly from a distance. ??If you show up every day, people will soon find out the clues. After changing the paint, it looks exactly the same as a mass-produced model that is about to be delivered to the troops. As for the difference in the engine tail nozzle, it is impossible to hide it, but as long as the take-off and landing process uses a relatively steep route, it is also possible. Not that easy to spot. This can be regarded as relieving worries in this regard. ??The ground crew who had already prepared outside set up the boarding ladder on the left side of the nose of the aircraft. The test pilot, who had also completed preparations early, saluted Chang Haonan and others, and then stepped on the ladder to enter the cockpit. The aircraft and flight control itself are both mature technologies. Only one of the engines is brand new, and all unmanned project tests have been completed before leaving the factory. So, the next step is to directly prepare for the first flight. Since the J-11 is not equipped with an auxiliary power unit, the engine still needs an external power supply vehicle and an air source vehicle to serve it from cold to start. After all, it is a new machine, and it takes half an hour to complete a set of procedures. ??It was also during this period that Chang Haonan and his team moved from the assembly workshop to the flight control center inside the tower. Call the command center on 1010. The plane has started and is taxiing. It is about to enter the runway. Please request instructions. ?The engines on both sides of this aircraft have different thrusts, and the flight subjects are also very different from those of a normal prototype. Once you get used to it, it will be awkward to fly a normal aircraft again. Therefore, Fu Guoxiang, the chief test pilot stationed at Factory 112, was not selected to participate in the air test of the Turbofan 10 this time, but continued to perform the factory test flight missions of the F14 and J-11. ??Sitting in the cabin now is another test pilot Song Shangcai. The J-11WS is modified from a two-seat aircraft, but the rear seat is retained just to improve mission compatibility. There is no need for a second pilot today. Stop in the take-off position first, keep braking, and prepare for a pre-take-off test. ??It was also the first time for the flight commander to perform a special aviation engine test flight mission, so he had a thick flow chart next to him and was issuing instructions according to the above steps. ?Although he was confident that he had memorized the contents backwards and forwards, the rules were the rules, and it was impossible to increase the risk of making mistakes just to show off his skills. In the cabin on the other side, Song Shangcai stopped the plane steadily at the end of the runway according to the instructions just transmitted by the radio. He then pulled up the brake lever and gradually pushed the throttle forward from idle, staying at several specific points in the middle. Observe the situation from your position. ?After all, this runway does not have special wheel blocks like an aircraft carrier, and the braking force that the aircraft itself can provide is limited. ??If you brake the car on the runway and use afterburner, the huge thrust can directly change rolling friction into sliding friction, and a pair of main wheels will be useless. So I can only open it about half way and give it a try. After all, the ground test of the engine has already been done in the factory. Now it is just a precaution and to let him get familiar with the slightly awkward characteristics of this aircraft. With the gentle movements of Song Shangcais left hand, the pointers of the two tachometers on the left and right rotated clockwise at the same time. Its just that the speed of the engine on the left increases significantly more sharply, and the final position of the pointer is further to the left. Even sitting in the cabin, he could already feel that the entire plane was ready to fly like an arrow. Report No. 1010, the engine speed remains stable, and the response of the test engine is slightly faster. Song Shangcais voice sounded again: Request to take off. After a few minutes of smooth operation, he also gained a lot of confidence in this special verification machine No matter how good a pilot is or how thorough his pre-flight preparations are, he will definitely fly more carefully when he first gets a new aircraft. After gradually improving your confidence and proficiency, you can gradually explore the ultimate performance of the aircraft. Received, allowed to take off ?At almost the same time as the commander issued the order, Song Shangcai, who was almost impatient in the cockpit, released the brake handle, then pushed the throttle directly to the "afterburner" position, and at the same time moved his right hand slightly to the left. Standing in front of the floor-to-ceiling window of the tower, Chang Haonan could see that No. 1010 was dragging two eye-catching tail flames, one purple and one blue, across the runway in front of him without even using a telescope. ?Just ten seconds later, with the slight rotation of the horizontal tail, the aircraft raised its head lightly. Left off the ground and take off! (End of this chapter) Chapter 645 Too good performance can sometimes be a source of distress Chapter 645: Too good performance can sometimes be a source of distress ?According to the requirements before the test flight, in order to prevent the distinctive chrysanthemums of this aircraft from being photographed by interested people as much as possible, the afterburner state should be maintained after takeoff until it climbs to an altitude of more than 3,000 meters before leveling off and starting normal test flight subjects. ??The first reason for turning on afterburner is to climb faster, and secondly because if someone does squat during the climb, the dazzling tail flames will easily overexpose the camera, making it difficult to clearly capture images near the engine. The thrust-to-weight ratio of the Su-27 when empty and light on fuel exceeds 1. The aircraft that was temporarily pulled out is the latest batch after weight reduction. Therefore, even a two-seat model with slightly less maneuverability can make such an action. It''s still flowing smoothly. In addition, the day was a little cloudy, so in just a few breaths, Chang Haonan and others holding the telescope could no longer see the shadow of the plane. Tsk tsk tsk Although they could no longer see anything, except for Chang Haonan, who had been looking at Station 624 for almost a thousand hours, the other people still looked unfinished, and even refused to put down their telescopes. "This tail flame... is so blue that it turns purple..." ?Luo Shida, who was standing on the left hand side of Chang Haonan, was a little hunched due to his old age and recent intense work, but at this moment, he stood up straight: Ive never seen such a beautiful one before At this point, he finally put down the telescope and turned to look at Chang Haonan next to him: "The waves behind the Yangtze River push the waves ahead..." The latter is now basically immune to this type of appreciation. Under normal circumstances, even when the other person is still making preparations, he has already prepared the polite words of routine response just by subconscious. But Luo Shida did not play his cards according to common sense at all: I, Mr. Luo, have only retired a few years ago, but I had never heard of such a turbofan 10 before the year before last. Comrade Haonan really has a good idea... Where, not just... Chang Haonan was halfway through speaking before he felt something was wrong ??Why does this old comrades focus seem different from others? ??But the other party is an elder after all, and Luo Shida is also a Taishan Beidou-level figure in the field of aviation manufacturing, so he cannot let the other party stand aside. So after thinking for a moment, he replied: There is no strategy to speak of. The main thing is that the project team members work together. Otherwise, even if I have a ready-made plan, I wont be able to advance so fast..." ??As a result, when Luo Shida heard his answer, he was not in a hurry. Instead, he smiled mysteriously: It doesnt matter, I understand, the string of confidentiality needs to be tightened... You dont need to answer directly... Chang Haonan was completely confused. He almost blurted out and asked the other party what he knew. ??But I dont think its appropriate. The result was that I was completely speechless for a while. When Luo Shida on the opposite side saw him being speechless, he confirmed the plot he had just imagined. He stopped talking and just turned back with a mysterious smile and raised the telescope again. , looked at the sky where there were only clouds left, and at the same time took the initiative to change the topic: The tail flame of this colorthe temperature in front of the turbine must be quite low In fact, in the years before Chang Haonan was reborn, as the temperature in front of the aircraft engine turbine increased to more than 2000K, engineers no longer believed that there was a strict correlation between the color of the tail flame and the temperature. However, as we approach the millennium, this understanding cannot be said to be problematic. So he nodded directly: Yes, the temperature was still relatively low when we first designed it, but the cooling technology and new coatings developed later were so effective that it was raised by more than 200 degrees..." Chang Haonan''s answer made Luo Shida raise his eyebrows. Hearing this, he thought to himself, the Turbofan 10 also encountered an iterative upgrade of active cooling technology during the development process. It will definitely not be completed in less than ten years. My previous guess Sure enough... ??If the latter continues to think like this, there won''t necessarily be any outrageous plot. Fortunately at this time, Song Shangcais voice came over the radio: Report to the command center that it has reached an altitude of 6000 and requests to switch the flight mode to the test state. The people standing in front of the window suddenly became serious again, put down their telescopes, and returned to the radar screen in the command center. Received, approved the request. ?The commander sitting behind the communication terminal replied decisively. At the same time, in the cockpit of Unit 1010, Song Shangcai quickly entered a series of four-digit numbers on the multi-function display, and then pressed "Confirm" to release the flight mode lock restriction As He Ming said before, the flight control of this J-11WS has been verified on the J-8IIACT a long time ago. In addition, the turbofan 10 has full digital control capabilities, so it directly integrates flight and thrust at the control level. change. It can even be regarded as the second Flanker in the world with this ability. At the flight control level, it is directly on the same starting line as the No. 711 high-mobility demonstration aircraft. Compared with traditional flight control systems that control the rudder and power separately, the biggest advantage of integrating flight and thrust is that the movements of the pilot''s hands and feet no longer directly control the power and rudder of the aircraft, but directly control the aircraft''s Behavior. For example, the most common action is to push the throttle lever with the left hand. In the past aircraft, this action actually increased the engine speed, thus pushing the aircraft to increase speed. ?However, as to how, how much, and when the rotational speed is increased, it is up to the pilot to make his or her own judgment. For a control system that integrates flight and thrust, pushing the throttle lever is only equivalent to giving an acceleration command to the aircraft. The flight control will automatically coordinate the cooperation between the engine thrust and the rudder surface to make the action expected by the pilot. . ?This ability is basically useless for normal aircraft in level flight, but for fighter jets that need to perform various extreme maneuvers, it can greatly reduce the pilot''s operating pressure. On this J-11WS, considering that the aircraft still needs to ensure basic safety during takeoff and landing, and the flight test subjects are also completed in the sky, when designing the flight control, the thrust under normal flight conditions was specially considered. Control is handed over to the flight controller. In other words, the test engine will automatically keep the thrust as much as possible with the other engine, and at the same time, the six control surfaces of the aircraft will also automatically adjust to try not to let the aircraft go astray. This is also the reason why Song Shangcai saw that the pointer of the left engine tachometer was relatively small just before taking off When the full throttle thrust is greater, to ensure the same thrust as another engine, the speed ratio naturally has to be lowered. ? Its just that the fully electronically controlled turbofan 10 adjusts thrust much faster than the electronically controlled + hydraulic AL31F, so at the moment when the throttle changes, you still have to move the lever slightly to ensure balance. Now, after changing the flight mode to the experimental state, these two layers of protection no longer exist. The two engines will maintain the same throttle opening according to the position of the throttle valve. Sure enough, almost the moment Song Shangcai pressed the confirmation button, the seal was finally released after he had been holding the turbofan 10 hard. ??He felt the entire plane lurch sharply to the right, and almost subconsciously stepped on the left rudder, trying to pull the plane back to flying straight forward. But anyone who has flown an airplane knows that without the involvement of flight control, the impact of power asymmetry cannot be compensated for simply by adjusting the vertical tail action surface. So, even though Song Shangcai had made a lot of preparations before taking off, it was still a little difficult to control the amount of movement on his feet once he actually got started. ?Especially when he was changing the throttle while performing preset flight movements, it was so awkward. It took him three attempts to make a steep turn without losing height. Unit 1010, is there a problem? The tower commander saw the abnormal track on the radar and asked with some concern. Report to the command center that the thrust of the left engine is too great and the throttle response is much more sensitive than before. I need to get used to it for a while. ??Although Song Shangcai is not as experienced as Fu Guoxiang, he is also from a serious test pilot training unit and is confident that he can adjust in a relatively short period of time. The latter nodded and indicated that it would be fine to just listen to the pilot. ?Although this flight carried light fuel, thanks to the large fuel capacity of the J-11, it was more than enough to complete the test flight. , Hearing this answer, the commander looked back at Chang Haonan who was standing behind him, obviously seeking advice. Just listen to the pilot. ?Chang Haonan put a hand on the opponent''s shoulder and said in a deep voice: The performance of this engine has been greatly improved. Its normal for you to not get used to it when you first get started, but there wont be any big problems. (End of this chapter) Chapter 646 Amazing flight envelope Chapter 646 Amazing Flight Envelope ?Song Shangcai was not too arrogant just now. After obtaining permission, he performed a set of flying maneuvers according to his own ideas that were not overloaded but could fully utilize all the control elements of the aircraft. ?It only took about ten minutes to understand the operating characteristics of this aircraft. ?Although it is not as perfect as the flight control, it is definitely no problem to carry out normal test flight subjects according to the pre-takeoff plan. Report to the command center and flight testing can begin. The calm voice on the radio and the return to normal flight path on the radar made everyone here breathe a sigh of relief. "receive!" ??The commander sitting in front of the radar display simply answered with two words. The test subjects of this flight had been memorized by the test pilot before takeoff, and the key route data of several core items had been entered into the flight computer, so there was no need to report every movement to the flight as before. Check on the ground. Therefore, while reporting the situation just now, Song Shangcai had already moved the throttle lever to a relatively low position and began to test the flight boundaries of the engine on the left little by little. At an altitude of 6,000 meters, whether it is supersonic or subsonic, there is actually nothing easy to measure in level flight. It mainly depends on how much performance can be maintained under some practical working conditions. So the plane quickly entered the subsequent test subjects under his deliberate control. Soon, Song Shangcai in the engine room felt it from the tachometer numbers. When the air intake state was damaged, the pointer on the left side was obviously more stable than the right side. You must know that AL31F is known for its high adaptability and tolerance, and this turbofan 10 even performs better in this regard... Of course, he still understands the principle of gradual progress. Naturally, it is impossible to measure data such as large sideslip angle and large angle of attack during the first flight. For the first flight, the project is mainly shallow and comprehensive. ??And judging from the current results, with the current status of this aircraft''s single-engine turbofan 10, it is likely that the real limit cannot be measured - The reason why we want to retain the AL31F on the right is originally to serve as a guarantee. ?This way, if something happens to the test engine in the sky, it will not lose all power and electricity, and the aircraft can be brought back. This is also a common practice in various countries when testing new engines. ??However, judging from the status of this test flight, Song Shangcai is basically certain that the guaranteed engine limits the upper limit of this aircraft... We have to wait until both engines are replaced with new models... He still felt a little pity in his heart. Report to the command center that the 6,000-meter altitude test has been completed and is ready to climb to the next test altitude. ??It was still just a routine report, so while speaking, he had already pulled back the control stick to let the plane raise its nose and start climbing. Received, pay attention to fuel consumption. The response from the tower came over the radio. ?According to calculations, the light oil brought should be enough to complete the test subjects, but if everything can be calculated accurately, there will be no need for a test flight, so you still have to be careful where you should be careful in the sky. Soon, the aircraft jumped to the second test altitude of 8,000 meters. ? This time, Song Shangcai was obviously more familiar with the road. He completed the same subjects as in the 6000 meters in almost half the time compared to before. Then naturally its 8,000 meters, 10,000 meters The theoretical maximum ceiling of the J-11 is around 23,000 meters, but the turbofan is in principle inferior to the turbojet in a high-altitude environment. Therefore, the maximum ceiling of the second-generation aircraft is basically one that can actually fly and has practical significance, while the third-generation aircraft The maximum ceiling is relatively unrealistic, especially for the central lifting body type design. So, according to the plan, this test flight will only proceed up to the practical ceiling, that is, it will be terminated at 18,000 meters. but. As mentioned above, if everything could be calculated accurately, there would be no need for test flights. ??When Song Shangcai flew No. 1010 to an altitude of 16,000 meters, he discovered that the plane, which had become more and more comfortable in his hands, once again failed to obey his orders... And its much more serious than it was at the beginning. ?Maintaining level flight is not stressful, but as long as you make a slightly larger movement, the aircraft will enter various strange postures. ?Although it can be corrected later, this situation is obviously not suitable to continue... So he immediately switched back to the original safe mode. ? ? You even need to enter a password to disable safe mode, but you only need to press a key to switch back. The aircraft''s attitude quickly returned to normal. Song Shangcai discovered that after restarting the integrated flight thrust control, the speed of the left engine suddenly dropped by nearly one-third from before... In other words, at an altitude of 16,000 meters, the thrust of the left turbofan 10 is almost one-third higher than that of the other engine at the same throttle opening... "The command center, the 16,000-meter altitude envelope cannot be tested. It is currently judged that the thrust difference between the engines on both sides is too large." After barely suppressing the shock in his heart, he took a deep breath and said on the radio. During the test flight, no one can tell what will happen in the next second, so as long as the verification aircraft or prototype leaves the ground, the test pilot is the biggest. Therefore, neither Chang Haonan nor He Ming could or would interfere with Song Shangcai''s decision. Let alone the flight controller. Received, ready to return. ??Although the original test subjects are still at two altitudes, as the first lift-off test of the new aircraft, it has obviously overfulfilled the task. Furthermore, the failure to complete those two heights was not because the engine was not good, but because it was too powerful... ?After a burst of cheers, a technician in charge of archival paperwork quietly approached Chang Haonan: Mr. Chang, how should I write this test flight log? The latter was stunned for a moment and immediately understood what the other party meant. In any case, this is considered an unexpected abort of a test flight. Logically speaking, if a problem is discovered, a follow-up fault analysis meeting will be held. But the situation this time... is obviously quite different from before. Just write it truthfully, but it doesnt have to be so rigid. After thinking for a moment, Chang Haonan replied: Just state it after the situation and say that the reason for the suspension is that the performance of the test engine is too strong and it is difficult to maintain the balance of the demonstrator. ?There is a sense of dj vu when you smash a backboard in college and then say you can compensate, but the school must notify the criticism and publicize it for a month. ?The other party understood immediately, nodded, and said no more words. ??Although the test flight just now took a long time, it actually stayed in the airspace around Shengjing and didn''t fly far, so it was actually fast to return home. Therefore, except for the necessary flight controllers, the rest quickly left the control center and prepared to greet the triumphant pilots as usual. Luo Shida was originally following at the back, but when he saw He Ming not far away, he quickly stepped forward and came to the latter''s side: Im talking about Xiao He, Comrade Haonan definitely looks younger than 40. When this project is completed, he will probably become the youngest academician in our country, right? "Well" ?Hearing that the first half of this statement was outrageous, but the second half was somewhat reasonable, He Ming was a little confused as to where to start. After a while he replied: Mr. Chang...I guess he will definitely be the youngest academician in our country. But now...he is only 25 years old. After completing the entire turbofan 10, he will definitely not be able to exceed 30..." ? He ??originally wanted to say that academicians under 40 years old were still possible, but those under 30 years old were too outrageous. ??But the things related to Chang Haonan in the past two years were already outrageous, including this one, so he suppressed his firm words again. ? And next to him, Luo Shida suddenly felt that something was not right Chang Haonan has been wearing old-fashioned work clothes these days, and he doesn''t care much about trimming, so he always thinks that the other person is a young talent in his mid-thirties but with a young appearance. It turns out that I am only twenty-five this year, so I am still considered a young talent... ?That ten years ago was fifteen years old... Obviously, there seems to be something wrong with his speculation just now. Comrade Haonan is twenty-five this year...so he was not responsible for the current version of the Turbofan 10 from the beginning? Luo Shida asked with a strange expression. He Ming shook his head directly: How is it possible? It was from the beginning. Luo Shida was immediately shocked: Then he was just a kid when he first took charge of the project? "Two and a half years ago... even if he was twenty-three, he wouldn''t be considered a child, right?" ? At this time, He Ming''s attention was already on the plane that was continuously lowering in the distance. After answering, he quickened his pace. Leaving Luo Shida alone in the wind. Its really only two and a half years (End of this chapter) Chapter 647 flanker evolution Chapter 647 Flanker Evolution First flight test, everything went well. ?The triumphant Song Shangcai was naturally welcomed as a hero. After all, no matter how much effort designers put in on paper, it is the test pilots who ultimately bear the huge risks on the front line. The heads of the WS-10 and J-11WS projects took turns to hug him. ?However, when it was Chang Haonan''s turn, Song Shangcai, who was still holding a bouquet of flowers in his arms, did not leave immediately after the usual greetings, but said: Mr. Chang, after climbing to 16,000 meters just now, it was really difficult to control the aircraft. It was barely able to fly levelly. As long as I made a slight movement, the nose of the aircraft was completely out of control..." Although generally speaking, no matter what decision a test pilot makes in the sky, he will not be questioned, but after all, he only completed half of the test mission due to his own reasons, so he felt that it was necessary to explain the situation a little bit. Chang Haonan''s mentality at this time is quite good. After all, Turbofan 10 is not just a single project, but the key to breaking the situation. ? The subsequent domestically produced and upgraded J-11B, as well as the new J-10 that has been completely changed and completely reborn, all need this model as power. ??The flight test is now going well. Although there are still many subjects that need to be completed in the follow-up, we can already look forward to a new round of upgrades of the Chinese Air Force''s main battle equipment. Its a pity that the J-8C has only been a Xiaotiantian for two years now. Im afraid it will become Mrs. Niu in another two years... So he waved his hand very simply: It doesnt matter, test flight is inherently an uncertain process, and the plan was made to break it. Furthermore, the fundamental reason why this test flight was not completed is that the performance of our engine is too good, and it is not a shameful thing. If you have the opportunity to write a memoir or something in the future, remember to focus on describing this matter. ?Chang Haonan''s joke caused a burst of laughter around him. Including Song Shangcai, they were also obviously relaxed. After all, it was not lunch time yet, so after a brief welcoming ceremony, everyone quickly got back to work. The technicians of Factory 112 towed the aircraft back to the final assembly workshop to conduct structural inspection after the first flight to confirm that the aircraft did not suffer any invisible damage. The engineer responsible for writing flight control programs at Institute 601, together with Chang Haonan and others, are waiting to obtain test flight data and analyze and improve possible problems - The combination of digital fly-by-wire and flight-propulsion integrated technology will be the standard configuration of future three-and-a-half-generation fighter jets. Therefore, this J-11WS, while serving as a turbofan 10 demonstrator, is actually responsible for the verification task of the flight control system. One flight to meet the requirements of three project teams. It can be said that the price/performance ratio is excellent. After a simple lunch, the test flight data obtained from the flight recorder was imported into the computer. From a qualitative point of view, the performance of the turbofan 10 on the aircraft is almost completely consistent with the simulation test results of the high-altitude platform. ?However, quantitatively speaking, after the engine change, the performance of the J-11''s inlet did exceed Chang Haonan''s expectations, so that at high altitudes and subsonic speeds, the thrust performance of the turbofan 10 was even better than expected. No wonder the test pilots responded that it was difficult to control the aircraft at an altitude of 16,000 meters. Liu Yongquan, who has been working as Chang Haonans deputy, pointed at the thrust curve on the curtain with a pen: In fact, at an altitude of 14,000 meters, the thrust data of the AL31F began to decline significantly. "At 16,000 meters, 1.4 times the speed of sound, the thrust has dropped from 12.5 tons to about 10.7 tons, while the thrust of the turbofan 10 has only dropped from 14 tons to 13.5 tons, a difference of 25%, and the automatic The trimming system is turned off, and it is purely controlled by hand. Being able to fly stably and level is considered a bold move for an expert..." "Further back, after turning off the afterburner and ending the test state at the same time, the gap between the two engines in the intermediate thrust state is even larger. Therefore, under the automatic operation of the flight control system, the turbofan 10 passes by about 30%. The rotation speed achieves a thrust balance with the right engine, which is also close to the situation reported by the test pilot comrade. " ?Following this, Liu Gaozhuo, deputy commander-in-chief of Project 11, who was responsible for the design of the flight control system, changed to another slide: The data recorded by the flight control system also shows that when the pilot adjusts the throttle opening as 0, the average time for turbofan 10 to start responding is 0.53 seconds, while for AL31F it is 0.97 seconds. Furthermore, in terms of thrust adjustment speed, the former is 55% faster on average than the latter. In other words, it only takes half the time of the latter to complete the entire thrust change process. "However, it is worth noting that the advantage of the turbofan 10 over the AL31F in terms of thrust response is that the greater the speed and altitude, the more obvious it is, and it is more obvious when pushing the throttle than when closing the throttle. If it is in the low-to-medium speed section below 6,000 meters, even It may be overtaken by the latter. Of course, this will not be determined until we conduct mid- and low-altitude tests in no-mans land. At this time, Chang Haonan took up the topic: "This is normal and has little to do with the flight control system. In order to reduce the structural complexity of the turbofan 10, the ejection nozzle itself has a weaker adjustment ability at low altitude and low speed than the convergent expansion type. It''s hard to give up. Well." As for the remaining conclusions, let me briefly summarize them... ?After briefly summarizing the results of the first test flight, he paused for a moment and then talked about another topic: "According to the progress of the current plan, after the Spring Festival, you can start using a double -hair turbofan 10 flight test, and complete the bags that cannot be done in a single shot." Within half a year, two models of turbofan 10 have been supplied to two models of third-generation aircraft in small batch trial production. I wonder where the J-11s upgrade progress is at Mr. Lius side? ??If you were to tell others that it only takes one year for an aero engine to go from bench testing to small batch trial production, no one would take it seriously. But since these words came from Chang Haonans mouth, there is no reason why everyone should not pay attention to them. So Liu Gaozhuo, who was sitting opposite, replied with a serious face: "Together with the engineers from Sukhoi, we increased the use of composite materials in the skin part. While reducing the empty weight, we also allocated part of the weight to the structural parts. Combined with a more detailed flight control system, it was basically relieved. The overload usage limit of the aircraft in a specific speed range. "A set of heavy-duty hardpoints have been added to the inside of the wing, increasing the total number of pylons to 12. However, the load-bearing capacity of these two hardpoints is currently only 2,000kg, which is still not as good as the two unlimited weights located on the belly of the fuselage. Hang on..." In addition, by dynamically adjusting the sequence and distribution of fuel during flight, effective control of the aircrafts center of gravity is achieved to a certain extent, and the flow of the fuel cooling system in the nose part is also increased. Although the effective diameter of the aircraft nose is reduced from 1000mm to 930mm, the heat dissipation power is increased by nearly 200%. In the future, there will be sufficient conditions to install higher-performance flat-panel slot antennas and even electronically scanned antenna radars..." ?Chang Haonan listened to the other party''s introduction and was quite satisfied with it. The improvement direction mentioned by Liu Gaozhuo is basically a combination of the previous J-11B and the Su-30MKK. It can be regarded as the optimal solution that combines the advantages of China and Damao under the current technical conditions. Then...when can we expect to start producing this deeply improved model? ??The person who answered this time was Yao Mengna, who has been stationed at Factory 112 for nearly two years: As far as the aircraft itself is concerned, the only obstacle currently is that the frame structure of the rear part of the new fuselage has been changed from a tailor-welded process to an integrated forging process, so it cannot be manufactured until the 70,000-ton die forging press is put into production. Of course, that project is yours, so efficiency shouldnt be a problem. When speaking of this, almost all eyes in the conference room focused on Chang Haonan for a moment One person is responsible for two national key models at the same time... In short, its outrageous. ?Yao Mengna also took the opportunity to stare at Chang Haonan for a while, but she quickly continued her previous answer: "However, according to Liming''s production plan, their small batch trial production rate is about 16-24 engines per year. Considering that the J-10 after the revised plan must use a turbofan 10 to propel it, the quota that can be left for us is definitely Its not enough. So, taking into account the increasingly tense pace of military struggle, our idea is to wait until the die forging press is put into production and then start small batch production of a fully upgraded turbofan 10 engine, a new airframe, 1493 radar, and a centralized flight computer. And the new model J-11B/J-11BS with digital fly-by-wire flight control, the output depends on the supply of new engines. "At the same time, we will continue to produce 1-2 batches, that is, 24-48 limited-edition models that will only be upgraded with new radars and semi-glass cockpits, and the rest will remain unchanged. They are currently tentatively called J-11AM and J-11ASM. Allow the Air Force to expand its third-generation aircraft fleet as soon as possible to ensure immediate combat capability in the next two to three years. After a few years of waiting until the production efficiency of turbofan 10 has increased to a sufficient level for supply, we can smoothly transition to full-scale production of the new and improved model After introducing the production plan, Yao Mengna raised her head again and looked at Chang Haonan, pushing up the round-framed glasses on the bridge of her nose: How about this plan? Naturally it is very good. ?Chang Haonan thought in his heart. Given the current conditions, this is basically the most stable production plan. The die forging press my plan is to use it as a National Day gift project. So far everything is going well, so it will probably be put into production in the second half of this year. This sentence can be regarded as a reassurance for Factory 112. After all, the limited improved version is just a stopgap measure. The only one that can really compete with the J-10 for the position of the main model of the Air Force is the serious J-11B. As for the production efficiency of turbofan 10 ?This problem also gave him a little headache. The production speed of the turbofan 10 is restricted by the three major components at the hot endturbine disk, turbine blades and combustion chamber wall. Mainly in order to improve the active cooling efficiency, special-shaped air film holes with very complex internal shapes are used. ??The theoretical upper limit of EDM speed is basically what it is now, and the yield rate is frighteningly low. Simply buying new equipment to expand production will not be very effective. After all, China is not so wealthy that it does not care about production losses. ??As for using the system to forcefully open a technology tree for electrochemical processing... Even if the two projects of turbofan 10 and die forging press are completed, I am afraid that the points awarded will not be enough for such a squandering. Therefore, Chang Haonan had no choice but to adopt a delaying strategy: In terms of production efficiency, I will think of a way in the future and try to provide enough engines for the two models as soon as possible... (End of this chapter) Chapter 648 Such a good platform, it’s a pity to just use it against the air Chapter 648: Such a good platform, its a pity to just use it against the air... Although Chang Haonan tried his best to make his tone less certain and did not make any substantive guarantees, the faces of several people participating in Project 11 across from him changed when they heard him say "fight for it". He showed a satisfied smile. ?There is no way, the past resume is too tough. ?After spending less than two years moving the turbofan 10 from the drawings to the verification machine, Chang Haonan has basically gone in the straight direction in terms of project research and development. ?Even though he didnt give an exact timetable at all this time, it was just a piece of cake, but he was still very convincing. Therefore, Liu Gaozhuo immediately took over the conversation: Our countrys air force, at least the current core mission, is homeland defense and competing for air supremacy for ground forces and the navy, so models that favor air superiority are definitely still the focus at the moment. "But we have also held symposiums with leaders of the navy, air force, and front-line pilots before. Basically, everyone agreed that on the premise of ensuring air combat performance, we should also consider giving the J-11 platform the ability to perform more complex tasks. ability." So, if the supply of turbofan 10 can be guaranteed, and it doesnt require too many, and if we can guarantee the supply of more than 40 units to Project 11 every year, then we can also consider using the planned multi-purpose models and special machine platforms. R&D needs to be advanced. "40 units per year... I''m afraid the production capacity will have to continue to climb to meet Mr. Liu''s expectations..." Chang Haonan smiled and looked at Zhong Shihong, deputy general manager of Liming Factory, who was a few seats away. The latter also nodded with a wry smile. But Mr. Liu doesnt have to worry too much about the production capacity issue. After relieving the Liming Factory a little bit of pressure, Chang Haonan changed the subject again: Multi-purpose models and special aircraft platforms are available. If you currently have sufficient technical capabilities and manpower, freeing up the production capacity of 2-3 mass-produced aircraft for research and development will definitely not be a loss in the long run. "Especially for the multi-purpose model, the driving function of the back seat of the two-seater trainer is actually removed, and a special weapon control system is installed in the freed space. The changes are not large, and the development cycle should not be very long. But with a full-time weapons controller, you can relatively easily use weapons such as laser guidance, TV guidance, and image matching guidance that require human loop control or complicated settings before launch. This is a very obvious advantage. " Although the air superiority model also has a weapons bus and can perform these tasks, it is still a bit insufficient to rely solely on a multi-function display on the pilots operating panel. In addition, during the design process, I specially reserved 50kW of power generation capacity for the turbofan 10A after the thrust reduction. When both engines are equipped with generators, it can provide a total power supply of 100kW. I can honestly say , This is prepared for special tactical platforms, and it is also the most irreplaceable advantage of heavy aircraft. "this" Liu Gaozhuo certainly understood what Chang Haonan meant, but he still had some concerns. This is the bad thing about twin-engine aircraft. With limited aviation supply capacity, using two engines for one aircraft is really resource intensive. Although the combat effectiveness will definitely be stronger than that of a single-engine medium-sized aircraft, it is difficult to say that one can defeat the two. Whats more, now is the time when there is an urgent need to increase the paper quantity of third-generation machines. The advantages of single-engine aircraft are even greater. So, no wonder he and He Ming were nervous just now ?In today''s 1999, China still has hundreds of J-6s in service, and the J-7 is the "main" and "new" fighter. Even though Chang Haonan seems to have worked on a lot of new gadgets in the past two years, even the J-8C, which was the first to produce results, has been equipped with less than 50 aircraft so far. ??It can only be regarded as a trump card, not the main force at all. This, for the Air Force and the aviation industry, is already a "grand occasion" that was unimaginable in the past 20 or 30 years. So, at this moment, even if Liu Gaozhuo uses his imagination to the sky, he only thinks that the People''s Liberation Army may equip two to three hundred third-generation aircraft in the future. In such a limited quantity, two models are needed. ?Of course its only on a first-come, first-served basis. This is also one of the reasons why Factory 112 plans to produce some limited improved versions first. After all, equipment has inertia. As long as an army uses heavy-duty aircraft, unless there is no choice later, it will generally continue its past habits when it is updated in the future. If you occupy the pit position now, you won''t lose anything. Looking at Liu Gaozhuo who looked troubled, Chang Haonan could probably guess the other person''s worries. From the perspective of a reborn person, this is naturally unfounded. In the future, the Chinese naval and air force aviation forces will replace all the more than 2,000 tactical aircraft in their hands with third- and fourth-generation aircraft. The space for replacement is extremely abundant, and it is not inferior to the efforts of the past few years. But this kind of thing is not a project after all, and even if you say it, others may not really believe it. So the easiest way is to directly create a sense of crisis. So, Chang Haonan cleared his throat and slowly said: Actually...Project No. 10 is currently changing in this direction. You must have heard that 611 is planning to modify the overall design of the aircraft to meet possible multi-functional needs in the future. Even medium-sized aircraft are working hard in this direction. Project 11 has obviously greater potential in multi-purpose, so we cant lag behind others..." ?Chang Haonan is now very skilled at this skill. When he was in Chengdu, he used the J-11''s advantage in development potential to get the 611 Institute to accept the extremely large improvement plan. Now it''s just the other way around. What does it mean to eat two fish for one?jpg I have indeed heard about the changes to the No. 10 Project... Although the method of stimulating generals is old-fashioned, it is useful. ??Liu Gaozhuo''s inner balance, which was still reeling, suddenly tilted: Then we will try to confirm the specific needs with the navy and air force before the year, and then start the project as soon as possible. Its better to be as proactive as possible. Chang Haonan immediately started coming up with ideas: Users understanding of needs is often lagging behind. In many cases, they are not realized until a long time after the needs arise. The nature of the defense industry is quite special. In many cases, if the time window is missed, it will be difficult to wait for the next one. So, its best to make predictions and seize opportunities in advance. At the end of the 1990s, the relationship between the aviation industry system that manufactured aircraft and the aviation force that used aircraft was relatively complicated. Before this, the army basically had to use whatever aircraft China built. There is no choice at all. By the time before Chang Haonan was reborn, the aviation industry could produce whatever aircraft the military wanted. Now is exactly the transitional stage in the middle. There is a choice, but the range of choices is still relatively narrow. So many things are discussed between the two sides. Objectively speaking, the navy and air forces demand for multi-purpose air power, or tactical air strike power, was actually created after the millennium due to renewed tensions. The second batch of Su-30MKK of the Air Force and the Su-30MK2 of the Navy in the previous life were all introduced under this background. So, now that the conditions are in place, it is better to prepare early. (End of this chapter) Chapter 649 I, Ph.D., graduated in two years Chapter 649: I, PhD, graduated in two years The Spring Festival of 1999 came very late, not until mid-February. According to the previously planned schedule, Chang Haonan completed all single-shot test subjects before that time. Of course, after adjustments. Approximately 15% of the preset subjects were moved to the back, waiting for the second turbofan 10 to be installed. The power layout of the J-11 allows it to complete an engine replacement in a relatively short period of time. However, since the replacement of the AL31F turbofan 10 also involves changes to the internal pipelines of the fuselage and the adjustment of flight control parameters, the efficiency cannot be that fast. In any case, we have to wait until after the new year. However, for the members of the Turbofan 10 project team, this can be considered a good thing. After all, following Chang Haonan in doing projects in this model, although the progress is indeed surprisingly fast, it is definitely overwhelming for other colleagues, especially the heads of those subsystems. ?This year and a half of continuous work may not seem like a long time, but the fatigue caused by the extremely high intensity of work is higher than before when I worked for three or four consecutive years. ?Chang Haonan himself knows this. So I just took this opportunity to give everyone an annual holiday. The same applies to the die forging press. Originally, it was a project as a National Day gift, and the current progress is faster than expected, and there is no rush for a couple of weeks. He himself was preparing to return to the capital after sorting out and confirming that he had saved all the test flight data for more than a month. The plane took off from Beiling Airport as usual and arrived at Xijiao Airport. ??However, this time, in addition to the usual two people Chang Haonan and Zhu Yadan, they also brought Yao Mengna, who was also preparing to leave Shengjing. She had known about Chang Haonan''s ability to get on a special plane before, but when she actually got on it, she felt completely different from just watching. Over the past two years, she thought she had reached her limit. But the distance between the two is getting farther and farther... It can only be said that there is a gap between the limit and the limit. After the initial novelty passed, Yao Mengna looked at Chang Haonan who was resting on the seat next to him, and suddenly said: Speaking of which, junior brother, I should graduate this summer. In this informal setting, she was still used to the way they were called when they first met. ?Chang Haonan counted the time and realized that Yao Mengna was indeed in the fifth year of her Ph.D. ?In a situation like hers, it is naturally impossible to delay the completion of the project. "Speaking of which...don''t you choose to graduate in the spring?" Chang Haonan said curiously: Ive calculated that if we hurry up now, we should still have time to submit the national defense report and thesis in March. Moreover, for graduate students or doctoral students in classified projects, the graduation qualification review will be conducted separately, and those who are not stuck in time will not Then die." Its not less than three months ?Yao Mengna shook her head: I did think about graduating in March before, but then the J-11WS project was a bit tight, so I focused all my energy on that. Now... I just want to take a good annual leave first. Thats true. ?As someone who has graduated once, Chang Haonan also knows that the reason why most people dont choose Chundu is basically the same as Yao Mengna. It feels really bad to be the only one writing a big thesis while everyone else is celebrating the New Year. What are your plans after graduation, senior sister? Generally, for graduate students who have done confidential projects, as long as they sign a confidentiality agreement, it will not have much impact on their employment choices. But the projects he and Yao Mengna participated in were obviously not general confidential projects, so there were certain restrictions on their graduation destinations. This was already known to the two of them before they first participated in the August 3rd Project.?????However, limitations are limitations, and there are still choices to be made. "I haven''t thought about it yet, so... I just want to talk to you." Hearing this question, Yao Mengna showed a somewhat troubled expression on her face: Basically all the factories in the aviation industry responsible for mainframe production and R&D have now offered me positions. The conditions are similar. They all start as associate senior researchers. However, there are so many options, which makes me a little confused. "In addition, if I want to stay in school, whether it is scientific research results or teachers, there will definitely be no problem, but I may have to start as a lecturer, and the salary will be worse than that in an enterprise, but the advantage is that I can work like Like the previous two years, I had a higher degree of freedom and had the opportunity to participate in projects with different systems..." Obviously, too many offers hit her head, making her have difficulty choosing. Or, at least, self-perceived difficulty in choosing. Because from the perspective of Chang Haonan, an outsider, what Yao Mengna just said was actually clearly leaning towards the latter option. Just needs someone to convince her. Furthermore, from a practical perspective, it is indeed better to stay in school. In addition, Chang Haonan still has some selfish motives. So, after thinking for a while, he answered: If you go to the aviation industry, then you have spent most of your time in Factory 112 in the past few years, so you will most likely choose Shengjing, which is more familiar with the situation. "As for staying in school...as you said, the degree of freedom will be higher, and..." Speaking of this, Chang Haonan straightened the back of his seat and turned to look at Yao Mengna on the other side of the aisle: And after I graduate, I should set up a joint laboratory with Beijing Airlines in the name of Torch Group. If you stay in school, you are welcome to join then. This matter is something Chang Haonan has been thinking about for a long time. If the Torch Group is to maintain its relatively lean size, much of the work cannot be performed by the group itself. But if it is completely left to outsiders, it will be difficult for him to rest assured. ?So, setting up a school-enterprise joint laboratory and then serving as the laboratory director yourself has become a safer middle choice. Hearing Chang Haonan''s answer, Yao Mengna''s eyes also lit up. ??If you can continue to work with your juniors after graduation, there is really nothing to hesitate about. Therefore, she nodded with almost no hesitation: Then its settled. "Before you graduate, I will stay at the school. After your joint laboratory is built, don''t forget to take me in..." Yao Mengna originally wanted to act pitiful, but after thinking about it, she felt it was a bit too pretentious, so she decided not to do it. Chang Haonan was stunned for a moment. ?Then he realized that his doctoral program was only scheduled for two years, and few people should know about it at present. Senior sister, actually...you dont need to wait. Hmm? What do you mean? At this time, Yao Mengna did not realize the seriousness of the matter. Because I am also graduating this summer. ?Yao Mengna directly performed a pupil tremor.jpg How could you You didnt just... the year before last... I did just enroll in school the year before last. Chang Haonan nodded: But my PhD is planned to be two years. (End of this chapter) Chapter 650 All the troops who switched to J-8C befo Chapter 650 All the troops who switched to J-8C regretted it... For a while, the expression on Yao Mengna''s face changed rapidly, turning red and white for a while, which made Chang Haonan a little worried. Senior sister? The latter asked tentatively: Are you... okay? Fortunately, Yao Mengna finally recovered from the red temperature state: "fine" ?She shook her head, leaned back on the chair, turned her face slightly, and looked at her junior brother on the other side of the aisle with the corner of her eye: I justwell, I didnt expect ?Yao Mengna must admit that she is really a little bit defensive. Of course she knew how capable her junior brother was. The chief engineer of major projects in his twenties, the general manager of a state-owned enterprise in his twenties, the winner of the special prize of the National Technology Invention Award in his twenties... ?Yao Mengna saw it all. But these are too far away. ?She never thought that she would one day become the chief engineer and win the National Science and Technology Award. But she knew very clearly that it must be a long time later. When people look at things that they have no chance to touch, it is actually difficult to have any real feelings. but. PhD is different. After all, this thing is visible and tangible. ?Everyone here who has a PhD must know this. As a doctor. A doctor who graduated after five years of study according to the normal training program. When you learn that another person can graduate in just two years. ?Even if you admit from the bottom of your heart that the other person is strong. It is also difficult to calm down inside. To say that I am not jealous at all would be an absolute lie. Therefore, it was not until several minutes later that Yao Mengna finally accepted the reality My junior brother is going to graduate at the same time as me. The thing she is most fortunate about at this moment is that she skipped the master''s degree and went directly to study for a doctoral degree. In this way, both of them can graduate in the same year. Otherwise, if we follow the normal 3+3 or 3+4 culture cycle... Laughing to death. When I was studying for my master''s degree, I was still my senior sister. We became the same level when we were studying for Ph.D. By the time I graduate... I''m afraid that I will become a junior sister. Thats wonderful. Besides this emotion, there seems to be a little thought of "my junior brother is really awesome"... ? Yao Mengna took a long breath and secretly apologized for the narrow-minded thoughts in her mind just now. Then she looked at the ceiling of the aircraft, avoiding Chang Haonan''s gaze: Then I will follow you after graduation... ?Chang Haonan immediately took care of everything: Dont worry, I will never treat you badly, senior sister The joint laboratory is still under preparation. Once it is actually established, a large number of manpower will be needed immediately. ??Although with his current reputation in the aviation and control fields, it will not be difficult for him to win over some talented people who are attracted by his reputation, but if you really want to know the basics... I''m afraid there aren''t many. After all, the members of this laboratory must not only pass the test in terms of ability, but also have to ensure that there is no problem in their stance. ?Those who have gradually matured, such as Lin Shikuan and Liu Yongquan, meet the requirements, but they have already worked in the aviation industry for some years. ??Whether it is from the perspective of one''s own expertise or organizational relationships, it is unlikely that someone will be transferred to the capital to work for him. ??Xu Yang is also the same. ??Although he has joined the Torch Group, he is from the Institute of Computing Technology after all, and he still has a reputation there. ? In this way, Yao Mengna, who was born in the same research group and is quite talented, has obviously become the best candidate for the laboratory''s trustworthiness. As long as the senior sister is useful, Chang Haonan cannot treat her badly. Yao Mengna, who was looking at the sky, was obviously not expecting this kind of answer. After waiting for a long time, she could not hear the follow-up, so she had to turn her eyes to the side again. ??It turned out that Chang Haonan had laid down the back of the chair again, closed his eyes and seemed to have fallen asleep... ? ? ? When Chang Haonan woke up again, the plane was already descending. ?Chang Haonan finally felt a little relaxed as he looked at the increasingly larger landscape outside the window. Even if there is a system by his side, he is still a mortal body after all. He just consumes slightly fewer brain cells during the project. He will still be tired when he should be tired. In the past, he either only assisted as a participant, or the project itself was relatively short and fast. In short, it was not difficult to find time to rest after work. But this time, whether it is the turbofan 10 or the heavy-duty die forging press, Chang Haonan is the absolute core of the project, and has not had much rest time since the beginning of last year. ?Especially in the last six months since the bench test, it has been a complete spin in a literal sense. During that most exaggerated period, I wanted to listen to the roar of the aircraft engine every day before I could fall asleep. Speaking of which, I should finally be able to have a good New Year this year A total of two Spring Festivals have passed since he was reborn. Last year, he was not at home at all because he was busy with projects. The year before last, he had only stayed home for a few days when he was called by a phone call to go to Haojing for negotiations. To put it bluntly, he was not even at home yet. I spent a complete New Year with my family. Hearing this emotion, Yao Mengna was about to say something, but this time she was interrupted by Zhu Yadan, who had been pretending to be transparent on the way: "Mr. Chang, if you go back to your hometown during the Chinese New Year... I have to follow you." The moment he finished speaking, even though the latter was well-trained, he also felt a murderous aura coming from the side, so he quickly added another sentence : Otherwise, the Spring Festival would have been chaotic. If you traveled alone, your superiors would never allow it. Chang Haonan thought it made sense. ?Although he doesn''t like ostentation, he is not a diehard. In the past, when I was less famous, it didnt matter. I just needed to choose a safer means of transportation. Nowadays, I am considered the person in charge of major projects. ? Even though he has always been low-key and focused on confidentiality, this kind of thing can only be prevented from accidental leaks but not deliberate exploration. ??As the commotion becomes bigger and bigger, personal safety must be paid more and more attention to. ??However, having said that, it doesnt seem to be that way to bring a stranger home all the way to celebrate the New Year. So after thinking for a moment, he simply shook his head: I will stay in the capital this year to celebrate the New Year. After a few days off, I will take my parents over. As he spoke, there was a violent vibration, and the plane finally landed on the runway of Xijiao Airport. ?There are no commercial flights here at all, so the process after landing is quite fast. Within ten minutes, the three of them had arrived outside the airport. ??This time I haven''t been back to the capital for half a year, so naturally I can''t just leave the car in the parking lot like I did when I was on a short business trip, so someone is here to pick me up. Junior brother, do you want to go back to school? ?Yao Mengna had returned to her usual feeling at this time and asked Chang Haonan. I already agreed last night that I have to go to the Science and Technology Commission first when I get back. The latter opened the car door, but did not sit in immediately: You can send me to the place first, and then send you back to school. A trace of hesitation flashed in Yao Mengna''s eyes, but it was inconvenient to take a taxi in this place, and it was also really unsafe. In the end, she didn''t show any pretense, nodded, and sat on the other side of the back seat. Commission of Science, Technology and Industry for National Defense, Director''s Office. Xiao Chang, its been a long time since I last saw you. It must have been half a year, right? Ding Gaoheng said as he put the prepared tea directly in front of Chang Haonan, and then he no longer stayed behind the desk, but sat on another vertical sofa next to him. Chang Haonan was originally taking off his scarf and hat, but when he turned around, he found that the old leader had poured all the tea, and he quickly sat down. Yes, in August last year, after digging out those counterfeit Japanese companies, I went to Chengdu, and then went to Chengdu and Shengjing in succession. It has been exactly half a year now. Although you have been away from the capital for the past six months, I have heard news about you almost every day. Speaking of this, Ding Gaoheng changed his usual stern expression, holding the teacup in both hands, his face almost beaming with joy: The new design plan for the J-10 reported by 611 at the end of last year had your name at the beginning, which made the leaders of the aviation department stare straight..." Hearing this, Chang Haonan smiled as expected: I specially increased the internal oil and the number of pylons based on the original design. Although it is still a medium-sized aircraft, it has a lot of potential. It was modified to suit the preferences of the Air Force..." ?In the past life, the Air Force was not very fond of the J-10 at first. To a large extent, it felt that this aircraft was really small. It would be difficult to even take one of the aircraft, let alone the range and bomb load. Now that these two problems have been solved with engines with better performance, they are naturally more popular. Ding Gaoheng listened to Chang Haonans explanation and nodded, then paused briefly and took a sip of tea before continuing: "Shengjing also said that as long as the turbofan 10 is properly supplied, it will be able to provide an improved J-11 with several times higher performance than the current one. I heard that some troops who had previously replaced the J-8C regretted it and thought it would be better to wait a little longer. Two years This made Chang Haonan not know what to say for a while. It can be regarded as some kind of happy trouble. After all, who would have thought that the third-generation aircraft era of China Aviation Industry would come so quickly... ?Originally, the general operation of this kind of replacement between generations is to let those ace units using J-8C give their second-hand mobile phones to friendly troops for use, and then pick up the updated J-11. But now the amount of training for the elite of the Air Force is only about 100 hours per year, and two years is just enough to master the tactics and tactics of the J-8C. ??If it were to be replaced with a new machine at this time, the transition period would be too long. And both armies were affected at the same time. So I can only accept some of the J-8C regiments... In addition, a few days ago, there were two EP3Es from the Misawa base that have been wandering around and were followed by our aviation forces. However, their behavior seemed to be quite honest, and they were operating in public airspace..." "Also, Comrade Xinzhi summarized last year''s results and found that the foreign exchange income of relevant units increased by more than 200%. If nothing unexpected happens this year, Ice Axis Group and Northeast Special Steel will be included in the Equipment Industry Department after the year. The system is under control. Although the export of Chinese industrial products to overseas markets is not particularly smooth, at least a few companies have established a foothold in Europe..." Ding Gaoheng came to see Chang Haonan this time. There was nothing particularly important to do. He just wanted to have a chat after not seeing him for half a year. ?So the two people, who were more than 40 years apart, sat on the sofa, drinking tea and chatting about what had happened in the past six months. ??Even Chang Haonan has heard of many of them for the first time. In fact, under current conditions, facing an opponent of the EP3E level, one can even put the JHD 7 out to engage in real e-sports with the opponent. ??It''s just that it''s too showy, and it''s still a little early for China now. I dont know what kind of monster this American guy is trying to do. The situation has only become a little more stable in the past two years... When talking about this matter, Ding Gaoheng couldn''t help but sigh. Actually...its not necessarily a demon. Chang Haonan had already made a guess: I guess it was when they tested the GPS jamming system last year that something abnormal was discovered, but they were not sure, so they sent a plane to investigate. Its also possible... Mainly because it happened to be during Operation Desert Fox, so the comrades involved would naturally be nervous..." Ding Gaoheng nodded, then sighed: The world is not peaceful... (End of this chapter) Chapter 651 The Balkan powder keg is about to explode again Chapter 651 The Balkan powder keg...is about to explode again... ??Hearing Ding Gaoheng mention Operation Desert Fox, Chang Haonan''s expression gradually turned serious, and even the movement of picking up the teacup slowed down It is already mid-February 1999, and the Lunar New Year has passed. Although the timeline has indeed undergone a lot of changes in the past three years, they are generally still limited to the technical and business fields. For example, according to Ding Gaoheng, the above have agreed in principle to the proposal to split the Aviation Industry Corporation into two according to business differences and establish the Aviation Industry Group and the Aviation Power Group respectively. After the meeting in April is passed, the details will begin. matters. De-administration of the head office was originally a basic strategy decided last year. The other companies have already completed their reorganization. Even the Ministry of Electronics Industry has been transformed into an electronic technology group. Only the Aviation Industry Corporation of China is left. Because the plan underwent major changes midway and has never been finalized, it has been delayed until now. At the beginning, just like the shipbuilding industry system, the idea of ??splitting the north and the south into the first group and the second group still prevailed. However, as the progress of Turbofan 10 has been advancing rapidly, several other projects have also advanced by leaps and bounds. Even the Haofa Group, which has always been weak in technical level, has built a D336 prototype by assembling large parts. It is planned to be installed in tandem with an imported engine of the same model for trial use on the second prototype of the C808 in the future. ?In this case, the plan submitted by Chang Haonan, Du Yishan, and Liu Zhenxiang naturally came from behind. With the installation test of Turbofan 10 a few days ago, the relevant debate has disappeared directly ?The reason why a problem can be discussed must be because there are multiple options that at least appear to have advantages and disadvantages. ??As a result, before the war of words was over, someone else came up with the results and stepped on his head to dance. There was nothing left to argue about. Lets just start discussing the specific details of the split and thats it To a certain extent, Chang Haonan has extended the life of the Aviation Industry Corporation for another year. But in any case, this impact is currently limited to domestic It has not yet reached the point where it can reverse the general trend of the world. So, what should come will definitely come. Operation Desert Fox was an air raid launched by the multinational coalition in the Persian Gulf in December 1998 that lasted for several days. Goal... Needless to say. But having said that, although the United States is indeed unreasonable in this matter, it does not mean that Lao Sa is a good person. ?Furthermore, for today''s China, even with Chang Haonan''s cheating assistance, it has just been able to protect itself and will not be as bad as the original timeline. Still powerless to deal with things that are too far away from oneself. ?Chang Haonan is concerned about the tactical significance of this operation. It is generally believed that Operation Desert Fox can be regarded as a rehearsal for Operation "Allied Force". ? And if nothing unexpected happens, there are still about 40 days until NATO officially launches air strikes... ?Of course, the Balkan Peninsula is further away from China than the Persian Gulf, and the current situation is even more out of reach. So the possibility of completely reversing the outcome of this matter is really not very high. However, Chang Haonan feels that some of the processes can still be tried to be reversed. After all, he has been preparing for this for almost two years... In fact, after the GPS jamming equipment test is completed, the basic conditions are already in place. But he has always acted as a pure technician in the past, and now he has to find the right time to change the topic to security issues. So I originally wanted to take advantage of the Chinese New Year to find a suitable opportunity to mention this matter again. ?Unexpectedly, on the first day back, Ding Gaoheng himself accidentally mentioned Operation Desert Fox. ?Then its better to choose a day than to hit it. Xiao Chang? Ding Gaoheng, who was sitting next to him, saw his tea cup in the air and remained silent for a long time. He knew that he must be thinking about something, so he didn''t bother him at first and just poured and drank by himself. ?But after a few minutes, I was really worried that he would drop the cup because he was too absorbed in his thoughts, so he started to scream. Just at this time, Chang Haonan also organized the language in his mind: By the way, Director Ding, you just mentioned about EP3E, and I suddenly remembered it. Hearing this sentence, Ding Gaoheng also knew that it meant serious business. He immediately put down the tea cup and his expression suddenly became serious. "The GPS jamming device that Researcher Xu and I have been tossing about before should be considered to have completely passed the test now. Whether it is fixed near a strategic location as a key defense, or installed on a vehicle or aircraft as a mobile device, it can fully achieve expectations. effect. Ding Gaoheng suddenly became interested when he heard this: Then your next step is to prepare After all, although this is not a big project, it is still very helpful for combat units that have become accustomed to the new three-on-one and three-defense skills. Chang Haonan pretended to hesitate for a moment, then sighed and shook his head: "Sigh... When I first came up with the idea, I was actually planning to finalize and mass-produce it and hand it over to the troops, especially the army''s frontline command organization, as a protective umbrella against precision strikes." "But at that time, I didn''t expect that the final product would need a military GPS receiver for signal relay. Judging from the current situation, it is impossible to mass-produce it in a short time. Only those two units can be used. Although the effect is very good, it is not effective. The coverage area is really not enough, so if it is handed over to the army, it will not make much sense..." ?This statement is of course just a foreshadowing, just to make my behavior sound less abrupt. In fact, from the very beginning, this GPS jammer was prepared to deal with NATO "alliance" operations. Chang Haonan naturally knows very well that within a few years, satellite signal interference will become an almost useless technology. ??If it weren''t for the time difference at this point in 1999, there would be no need to personally intervene in such a small project. For his true purpose, two are enough. Ding Gaoheng was not the roundworm in Chang Haonan''s belly, so naturally he didn''t know about these twists and turns, and he also showed a look of regret at the moment. ?However, Chang Haonan was still relieved: "Don''t think so, but any project that is in progress will definitely not be completely meaningless. What''s more, you and Xiao Xu have already built the prototype. It''s just that the conditions are not mature yet. It can be temporarily turned into a technical reserve. , lets wait until conditions are met later ?Chang Haonan performed a full performance, but the expression on his face was still a bit tangled: After so much effort, it would be a pity if we just turned it into a technical reserve..." Ding Gaoheng wanted to try to persuade him again, but when he heard this tone, he realized that Chang Haonan might have other ideas, so he swallowed his words again and waited for the latter to continue. Sure enough, after a brief pause, Chang Haonan spoke again: Although it is of little significance for military purposes, if placed in some small and key locations, it can still have obvious effects. Ding Gaoheng was confused for a moment: "Although this is the truth, two devices can basically cover a larger building and the courtyard. Basically, it cannot cover the places where it is needed, and it is useless to cover the places that are not needed... After all, it is a key location There would have been facilities such as anti-aircraft gun emplacements around..." ?What he said certainly makes sense, but after all, his thinking is still not broad enough. Chang Haonan saw that the preparation was almost done, so he stopped going around the bush: "But these two devices have a very big advantage, that is, they do not have any physical damage capabilities. They are completely passive soft-kill devices. As long as the definition is slightly modified, they can be used as civilian devices or even for humanitarian relief. Materials, in this way, even if they are used outside our country, there will be no obstacles..." Ding Gaoheng didnt fully understand it at first, but when he thought of the Desert Fox operation he just mentioned, he instantly felt like he had grasped the clue. You mean that in a war zone... we can also protect our own people..." (End of this chapter) Chapter 652 First, transport the GPS jammer there. Chapter 652: Transport the GPS jammer there first ?Chang Haonans previous wave of temptations was just to get Ding Gaoheng to take the initiative to say this usage. ?Now that the other party has taken the bait, the rest of the matter will naturally be easier to handle. ?However, the scene just now has been played out, and now even if it is purely out of professionalism, it has to start and finish, so he put on a look of shock again: Uhactually what I thought before was to put it on a warship to interfere with others while performing accompanying surveillance missions. ?He said this sentence as a kind of ending, and then changed the topic and got to the point: But if you say so...its not impossible. Anyway, the world has not been peaceful these years, but it wont bloom more. When we find out where the situation is more tense, we can just send it there in the name of logistics supplies. Ding Gaoheng picked up the tea cup again and drank it all in one gulp. At the same time, he looked at Chang Haonan with a somewhat suspicious look. He somewhat suspected that the other party had dug a hole from the beginning and was waiting for him to jump into it, but it was a pity that there was no evidence... If you put it that way, things in the Persian Gulf have basically calmed down now. Ding Gaoheng, who finally decided not to think about it too much, played with the empty tea cup with one hand: With this current posture, anyone with a discerning eye can basically see that the next thing to explode must be the traditional powder keg... "oh?" ?Chang Haonan has been almost in a semi-closed state for the past six months. It is really not suitable to appear too well-informed, so he had to use his acting skills again: Ive heard of several air raids in the past few years. Recently... whats the news? "Um." Ding Gaoheng hesitated for a moment. ?Originally, I wanted to consider my words, but after thinking about it, I felt that Chang Haonan was not an outsider anyway, so I spoke directly: Several countries have already assembled troops there, mainly the air force. Although similar situations have occurred several times in the past few years, I am afraid there will be a big move this time..." The situation in the Balkans is more complicated. Most EU countries, on the one hand, hope to carry out an operation, but on the other hand, they hope that they, not the Americans, can lead the entire process. On the other hand, the Americans also hope to take this opportunity to show their muscles to Europe, so as to curb the growing tendency of unity there Chang Haonan next to him originally just wanted to make the whole conversation more natural, so he asked the question just now. ? Dante Gaohengs answer actually contained some content that he wasnt quite sure about in his previous life. For example, Europe and the United States are actually bedfellows in this incident. ?Judging from the results of the previous life, the Allied Operations indeed resulted in a clean defeat for Europe, especially the two traditional powers of Germany and France ?You have been clamoring for European integration for a long time, but in the end you still want the Americans to settle matters. Moreover, you have not shown any sense of "independence" in the process, and you are completely the latter''s follower. This eldest brother obviously cant stand it any longer. ?However, it is generally believed that this is asking for trouble, or actively inviting the wolf into the house. But if what Ding Gaoheng just said is true, it means that Europeans are not completely devoid of their own ideas. Its just that I couldnt show it for some reason. So, Chang Haonan swallowed back the response he had prepared, and after thinking for a while, he spoke again: Ifthere is really chaos over there, will it have a big negative impact on the euro that was just issued? On January 1, 1999, the euro was officially issued. So now we have actually entered the Euro era. ? Its just that there is a lot of mess behind this kind of transnational currency, and it is definitely impossible to get it right in one step. Therefore, it is still in the dual-track system, that is, the euro and each countrys own currency are used in parallel. It will take several years of transition before it will fully replace the latter. "EUR" Hearing this question, Ding Gaoheng frowned and gently put the teacup back on the table, letting Chang Haonan pick up the teapot and fill it up again: "I have almost never been exposed to economics in my life. I dare not guarantee this issue. But from common sense, although Southeast Europe does not use the euro, it is the European powder keg in the traditional sense. If something goes wrong, , Im afraid its not good news for a new currency that has just started to be issued a few months ago Chang Haonan felt that an idea seemed to have popped up in his mind, but it was like a messy ball of thread. He could not find the end of the thread and could not unravel it. One thing is for sure Europeans attitude on this matter does not seem to be as firm as it seems But it seems difficult for both Huaxia and Chang Haonan to take advantage of this. Ding Gaoheng next to him drank another cup of tea, then waved his hand and said to Chang Haonan: These things cannot be decided by us technical people, and objectively speaking, we do not have the strength. Thinking too much will only make ourselves uncomfortable. But given the current situation, its still necessary to transport the two GPS jamming devices you created in advance just in case. Ill report it to you early tomorrow morning Chang Haonan just emotionally felt that there was a huge opportunity looming in front of him. It would be a pity if he couldn''t seize it, but intellectually he also knew that the former was reasonable. The current environment is that the United States is so powerful that it cannot be tough for the time being, so it can save whatever it can. ?So he calmed down a little, and then continued what the other party said: In order to avoid being too sensitive, it is better not to mention the words GPS interference in official documents. We named this thing the Soft Kill Self-Defense Countermeasure System (SKSPCS), emphasizing its passive self-defense attributes. In the late 1990s, such outrageous names were not very popular, so Ding Gaoheng was unprepared and not very focused, so he didn''t remember it for a while: Soft kill At this time, if Chang Haonan repeats it again, it will undoubtedly mean that the other party has a bad memory, so he just ignores this detail calmly: "After I go back, I will first ask the 14th Institute of Electrical Engineering to transport one of them to the capital, along with the instructions for use that were written during the previous test." So fully prepared? Ding Gaoheng looked shocked: "Is there even an instruction manual?" There is no way. When this thing was tested, engineers were asked to record the translation algorithm of the interference signal on site. Chang Haonan said as he poured the last bit of tea in the teapot to Ding Gaoheng and himself: But whether it is used by the army or anyone else, they are definitely not professionals in this field, so we can only preset several fixed working modes and try to ensure that everyone who can understand Chinese characters can use it. Thats really good (End of this chapter) Chapter 653 Improved security treatment Chapter 653: Improved security treatment After saying this, the two people sat sideways and didn''t speak again for a while. ?Chang Haonan picked up the teapot and wanted to pour water for the two of them again. Only found that it was empty. Had no choice but to get up and get a thermos bottle from the table a little further away, and fill the teapot again. The huge office fell into a somewhat depressing silence. As Ding Gaoheng just said. They are both technicians after all. What can be done is limited. China is still at a stage where it must hide its capabilities and bide its time. What you can do is limited. Enabling compatriots to protect themselves is the result of Chang Haonan''s dedicated efforts in the past two years. As for the higher level, everyone can predict the tragedy of the entire country. There is nothing I can do to help. Its a pity. At this point in the late 1990s. Power is not in the hands of civilized countries. ?There is really no point in continuing to talk about this topic. It''s just adding some useless sadness. The two of them drank two more cups of tea in silence. Only this time, it was Chang Haonan who broke the silence first. After all, he had already experienced what happened next. No matter how bad the situation is today, it cannot be worse than it was in the previous life. Hence the psychological burden and stress is much less. Although it is impossible for our official agencies to evacuate to express their attitude, under the current circumstances, should we consider early evacuation of overseas Chinese? Chang Haonan rubbed the edge of the tea cup with his right hand and said: Otherwise, if a conflict breaks out and the sea and air are blocked, it will be difficult to figure it out. In the original timeline, since China was almost completely unprepared for the Allied operations, it was not until mid-April that about 200 expatriates were evacuated overland to Romania after going through untold hardships. Now that you know the relevant information in advance, you can naturally feel more relaxed. Since the beginning of the year, relevant departments have been working on this matter. Ding Gaoheng nodded and replied: Its just that because NATOs troop build-up is not public information and we obtained it through special channels, in order to protect the source of intelligence, we cannot take too big actions and can only make insinuations one by one. Fortunately, the number of Chinese people in the south is not large at present, and the Spring Festival is approaching soon, so it wont be too abrupt to send them back in batches, and we should be able to evacuate them in good order. But if you really cant move, or if you explicitly refuse to come back, we have no choice. ?Chang Haonan is not a holy mother. When things have been done to this point, she has already done her best, and it is unrealistic to force more. What he was more interested in was the special intelligence channels mentioned by Ding Gaoheng: We still have intelligence activities in Europe? Obviously, this is the core reason for being able to know the other partys movements in advance instead of being ignorant like in the past. Ding Gaoheng nodded: "I actually don''t know much about the specific things myself. This falls under the jurisdiction of the General Staff Intelligence Bureau. However, in the past two years, the frequency of information updates there has indeed been much faster than before, especially in the United Kingdom and France. I suspect that some Downing Street may not know about things before we do..." "Although I don''t know exactly how it is done, I estimate that this is largely due to our increasingly closer ties with Europe and, of course, the Russians. Some activities are naturally better than in the past. Easy to carry out. "For example, regarding technology-related information, in the past, only Western countries sent engineers to our companies, which must have been one-way and transparent. Now, because of you, our engineers can also be posted to them. , it will naturally come and go..." Well, after going around and around, we came back to Chang Haonan''s side. ?However, the vast majority of intelligence activities are indeed carried out in a completely open-label manner under the guise of legality. It is an extremely rare operation to create a secret pile like the Cambridge Five or George Blake. So, to say that he has a share of credit in this is not an attempt to redeem himself. After taking a sip of tea to moisten his throat, Ding Gaoheng continued: But there are two sides to this kind of thing. After getting closer to these European countries, you will inevitably have to worry more about some things..." How to say? ?Chang Haonan helped the other party fill up the tea again, thinking that he was diverting his attention by listening to the story. Otherwise, if you end the conversation now and go home or go to dinner, your mood may be affected for a long time. Actually, its nothing. It happened at the second Xiangzhou Air Show last year. Ding Gaoheng may have felt a little full after drinking. This time he did not go to get the tea cup immediately, but leaned back on the back of the sofa: "Our exhibits this time are actually the same as last time. If I have to mention, there is an extra trainer from Guiyang Aviation Industry 9, and there is also an AC139 helicopter prototype that AgustaWestland worked overtime to produce. But thanks to the huge commotion in the past two years, there are many more customers who want to buy airplanes than there were in 1996..." As the person in charge of the entire aviation manufacturing industry, when talking about the Xiangzhou Air Show, his mood recovered from the slight depression just now: The final results reported by the organizer were that the total transaction volume was higher than that of the first edition. It was nearly 30 times higher..." 30 times! So much? ? Last November, Chang Haonan happened to be so busy in Fucheng that he hit the back of his head. How could he find time to pay attention to the Xiangzhou Air Show, which had few highlights. So when I heard this number, I was shocked and almost spilled the tea in my hand. ??Although the progress is particularly rapid because the starting point is very low, a sudden increase of 30 times is still quite scary no matter how low the starting point is... "yes" Ding Gaoheng had predicted Chang Haonan''s reaction just now. At this moment, he naturally had an expression that said, "You are finally scared one day." He replied with a smile on his face: This is because we took into account the international impact and placed an order. At that time, Argentina wanted to trade minerals and agricultural products for 18 J-7F fighter jets in the form of barter. But you know, the situation there is more complicated, and this kind of arms sales is likely to touch the pain points of the British. So... considering that we currently have a relatively close relationship with the UK, we did not directly agree to the transaction at that time and was stuck in the approval process. As for arms sales, they are rarely purely commercial activities. ?The impact from other levels must be considered. ?For example, in Project 11, Sukhoi required China not to export the Su-27 and its derivatives to third countries in any form. In exchange, the Su-27 upgraded model exported by the Sukhoi Group must meet the conflict avoidance principle if it directly contains technologies jointly developed by both parties within the framework of Project 11. In other words, it cannot be exported to countries with direct conflicts with China. ?For example, the Su-27SM2/Su-30M2 aircraft using the same second-stage upgraded airframe as the J-11B cannot be exported to a major country in South Asia. ?However, the Su-27SM/Su-30MK, which only uses one-stage upgraded airframe, is not affected by this. ?There is no fixed rule for this kind of thing. It purely depends on the relationship between the parties involved and the comparison of national strength. In short, arms sales to Afghanistan are certainly not as important as maintaining relations with Britain. ?However, Chang Haonan quickly thought of a good idea: Actually... it may not be impossible to trade. Anyway, everyone knows, including the British, that the Afghan army bought aircraft just to give an explanation to the country, and it did not really want to regroup and do anything. In the same way, the British may raise concerns or protests, but it is just to give their country an explanation, and it is also not really to prevent us from selling aircraft. Ding Gaoheng nodded, obviously agreeing with Chang Haonan''s analysis. Most countries do not buy weapons for the purpose of fighting. Argentina is naturally one of them. In this case, let the other side let the word out first that they are going to buy FBC1 Flying Leopard fighter-bombers, and then start negotiating with us to stimulate the British. Wait for a while, then take advantage of the situation and change the model of the arms sales from the Flying Leopard to the J-7, and give them an explanation. In this way, we will make money, the Argentines will buy the aircraft, and the British will also gain face. Its a win-win-win situation. ?Chang Haonan''s idea made Ding Gaoheng couldn''t help but smile. Obviously, not only Chinese people, but people all over the world like to compromise in character. So Mr. Lu Xuns roof-lifting theory is indeed useful. I can discuss this idea with the aviation department later. Ding Gaoheng sat up straight again and took the teacup in his hand: But whether they want to do this depends on their judgment. Anyway, 18 second-generation and a half aircraft, the total amount is less than 50 million US dollars. It is not a big order, and it may not be worth such a big deal..." "You are like the biggest deal at this air show. Turkish Aviation Industry is preparing to introduce a complete set of AC139 helicopter-related technologies to produce helicopters on its own. The upfront payment alone is 1.5 billion US dollars, which is 30 times that of a small deal... " The two of them chatted together, almost ignoring the passage of time. By the time all possible topics of conversation had come to an end, it was almost evening. By the way, Xiao Chang. Just when Chang Haonan was about to leave, Ding Gaoheng stood up and stopped him: "You haven''t lived in the capital before, so there is something I haven''t had time to say." Considering the completion of the turbofan 10 and heavy-duty die forging press projects, your superiors have now raised your security to another level. "ah?" This is something Chang Haonan did not expect: "Then... we don''t need a few more bodyguards, right?" Being closely protected sounds cool, but being restricted everywhere is actually very troublesome. He just got acquainted with one Zhu Yadan, and he really didnt want more people to come. Fortunately, Ding Gaoheng did not mean this: No, having too many personal bodyguards will also affect the normal life of the protected person, so one Xiao Zhu is enough. But given your current situation, it is definitely not appropriate to continue living in the faculty and staff dormitories provided by Beijing Hang University. That place is an open community and almost anyone can enter. Even if you are not afraid, we still have to worry. Chang Haonan thought about it and thought it made sense, so he asked: Director Nading, what do you mean... I have applied for a set of public housing for you according to the standards of the deputy director of the Science and Technology Commission. Ding Gaoheng made a shocking statement directly: Its not far from my house. You should have had an impression when you went to eat last time. There is security in and out of the area over there, so it doesnt matter how strict the personal security is, and we can feel more at ease... (End of this chapter) Chapter 654 The organization has already prepared it for you Chapter 654: The organization has prepared it for you In fact, from the moment he got off the plane after arriving in the capital, and Zhu Yadan repeatedly emphasized that Chang Haonan would not be allowed to go back to his hometown alone for the New Year, the latter had already guessed that his security standards should have been improved. ??Its just that he has been staying in a closed management research institute for the past six months, and there is no need to worry about safety, so he has never felt it Security is both a right and an obligation. It is not something that the protected person doesnt want just because he says he doesnt want it. Including the relationship between Chang Haonan and Zhu Yadan, it is different from the simple superiority and subordinateship between the chief and bodyguards within the army. Although the latter is always referred to as the head, strictly speaking, it is actually a work cooperation that is not subordinate to each other. In other words, Chang Haonan is relatively honest and would never leave the house unless necessary. Otherwise, Zhu Yadan, the "guard", can even veto unnecessary trips of the protected person under certain circumstances. But its a guess. ?Chang Haonan originally thought that at best, more appropriate arrangements were needed for his personal itinerary. ?For example, in the past, it was necessary to report one or two days in advance, but now it is three or four days in advance, and the relevant security units at the destination may also be notified to make preparations. It is quite troublesome to say. As a result, Ding Gaoheng came directly to the big one. A new residence has been arranged for him... ?But if you think about it carefully, what the other party just said makes sense. Chang Haonan now lives in an ordinary residence assigned to faculty and staff by the school. It is essentially an ordinary residential area close to the school. Even if personal safety considerations are put aside, the level of confidentiality is not adequate. ?For example, you cant get through the confidential internal phone line at all, and you have to go all the way to the office if you want to contact anyone. A lot of information cannot be taken home. In short, it is quite troublesome. Furthermore, Chang Haonan asked himself that he was not a saint. ?Although I dont take the initiative to grab any treatment, I definitely feel at ease with what others give me. So, after recovering from the brief shock, he did not show any pretense about this kind of thing. He just nodded and thanked: Its troublesome, Director Ding, to worry about this kind of thing. Ding Gaoheng waved his hand indifferently: I cant talk about it. The request to improve the security level was directly issued by the superiors. I just found a relatively better condition for you in the maneuverable space. "The main thing is that recently the authorities have been focusing on vacating and converting substandard housing. Although it is impossible to control all of them, there are still people of all ages in the vacant places. There happens to be a place not far from my place. If there is anything going on in the future, Also convenient. Chang Haonan was already thinking about moving, but when he heard this, he couldn''t help but feel a little worried: Non-compliant housingthen this is me Be it rebirth or system, it can improve a person''s ability and knowledge, but it will not affect his cautious, or to put it more bluntly, timid character. After all, I have been engaged in technology for both my life. Ding Gaoheng raised his eyebrows. ??Although Chang Haonan did not directly ask the second half of the sentence, he could naturally understand the other party''s concerns and immediately said: "Don''t worry about this. Although you are not of high administrative level, as far as the actual situation is concerned, you are not only the direct person in charge of key national supervision projects, but also the winner of the special science and technology award, and you have the approval documents from above. No matter what, you are in compliance. Its ok, just go and stay there. Chang Haonan''s worry just now was just a momentary thought. Now that he heard Ding Gaoheng''s explanation, he was naturally relieved: ThenIll clean up the old house in the next two days and try to move there before the year? ?His subjective purpose in asking this question is naturally not to rush to live in a big house, but to reduce the pressure on security as soon as possible. ?However, Ding Gaoheng, who was also putting on his coat and getting ready to get off work, was stunned and stopped buttoning his buttons: You probably havent lived in the Beijing Airlines unit for long, right? And most of the time youre out on business trips. Is there anything important thats worth moving? Chang Haonan shook his head: Of course I dont have any important things, just the personal belongings that I left in the dormitory before, but after all, I have to move some bedding and other things over if I have to change my residence... ?Seeing his unfamiliar look, Ding Gaoheng shook his head helplessly and resumed the movements of his hands: "That is a public housing set aside according to the standards of the deputy director of the Science and Industry Commission. Although the decoration and furniture are a bit plain according to current standards, it is not enough for you to bring your own luggage to move in. Otherwise, those of us at the central government Those in direct units are fine, but those local leaders who are often transferred across provinces and cities still have to move to death..." After making some tongue-in-cheek remarks, he paused for a moment, then continued: "If you don''t have any important personal items, you can just go through the formalities later and get the keys. If you don''t have anything important, you can ask the General Affairs Office to send two people to help you get it." "But in your case It''s quite special. I guess...if you don''t take the initiative to mention it, Beijing Airlines will not take back the old house just because you have a new residence. After all, it is impossible to give you property rights in this official housing, so it is okay to leave it there for the time being. fine" In his last life, Chang Haonan didn''t even catch up with the era of free housing allocation. After his rebirth, he only got a single apartment from the school. He didn''t even have the property rights for the time being. He had jumped up through the ranks and had no chance at all. The middle position slowly understands these. Its normal if you dont know. So I dont feel any embarrassment at all. While the two were talking, Ding Gaoheng was already dressed and picked up his briefcase from the table next to him: Lets go, we happen to be on the way, lets go get the key for you first Chang Haonan had been to the other partys house for dinner before, but at that time he was just a guest, so he didnt pay much attention to the specific address at that time. ??I never expected that I would live nearby so soon... The two of them left the office and went downstairs one after another. ??Then naturally we got into Ding Gaoheng''s car together. At Ding Gaoheng''s level, the environment around his residence is naturally quite good. On the way in, Chang Haonan even saw two sentries inside and outside. No wonder I said before that if I lived here, the pressure on personal security would be much less. ?Shortly after passing the second checkpoint, the car slowly stopped in front of a seemingly inconspicuous two-story building. Its too late today. Ill ask Xiao Zhu to make a trip tomorrow to get the pass here. Otherwise, your ID will have to be checked every time you enter the car, which will be quite troublesome. Ding Gaoheng in the passenger seat turned his head slightly and said to Chang Haonan behind the driver - Although the former has a technical background, he is an active-duty soldier with a rank after all. The seating arrangement habits of military vehicles are very different from those in local areas. Generally, the co-pilot is regarded as the leader (the officer leading the vehicle). "good." ?Chang Haonan nodded. Before getting out of the car, he took a deep breath to calm down. ?There is no way, as a layman, it would be absolutely false to say that I am not a little excited about the townhouse with beautiful surroundings in front of me. Ding Gaoheng looked normal. He turned around and asked Chang Haonan to follow him, and then walked all the way to the door. Insert the key and open the door. The two walked into the living room. As the former said, the basic furniture and daily necessities were ready. Ding Gaoheng put his briefcase aside, then raised his head and looked around: According to the standards of the deputy director of the Science and Technology Commission, the housing area should be 190 square meters. This small second-floor apartment should be a little smaller, but the location is good, and it faces north and south, so the lighting is good. Chang Haonan, who was following behind, did not overly conceal his joy: Its really good. The decoration style is also the simple type that I like. Its practical and not complicated. He has not even fully recovered from the shock when he first walked in: The area is not a problem. I usually live alone. Even if I include the guards, such a big house feels a bit empty..." So. Ding Gaoheng walked back and forth in the living room twice, and then sat directly on the sofa: You can also start thinking about personal issues. Cough cough cough Chang Haonan almost choked on his saliva at his sudden words. Yu Zi, you graduate this summer and you should be in your mid-20s. Its the right time to consider starting a family. And as you just said, its not suitable for one person to live in such a big house all the time. "Yu Gong...Although there are no explicit regulations in this regard, it will be beneficial to your future development to start a family and start a business stably, whether you want to stay on the academic route or switch to administration like me." (End of this chapter) Chapter 655 Prepare to poach people across borders! Chapter 655: Prepare to poach people across borders! "This...Director Ding, I haven''t..." If we say that Chang Haonan is somewhat mentally prepared for other topics this afternoon. ?The sudden wave of official pressure to get married really made him a bit overwhelmed... I know you are still young, so I didnt say how long it would take you to solve the problem. ?Just as Chang Haonan was stumbling to organize his words, Ding Gaoheng smiled and waved his hand: Just to remind you, in addition to working on projects, you can also pay a little attention to this aspect. Hearing this, the former finally breathed a sigh of relief. ?However, before he could finish breathing, Ding Gaoheng added another sentence: Its a pity that my granddaughter is too young, otherwise it wouldnt be impossible to consider ??So Chang Haonan''s CPU was a little weak again. ?This kind of proposition seems to be wrong no matter how you answer it... Is it possible to say that I can wait a few more years? Fortunately, Ding Gaoheng did not worry too much about his granddaughter: Anyway, in your situation, you dont need to worry too much. You have a lot of freedom of choice. As long as the background is clean and the person is reliable, its up to you to focus on your own feelings and preferences. "Speaking of which, I think that Researcher Xu who worked on the project with you before is pretty good. Although he studied abroad, his personal performance and family background are very good. He is a native of the capital. His father works in the labor union as a casualty, and his mother and daughter-in-law are very good. He is also a middle school teacher..." The only thing is that Im a few years older than you, but then again, a female college student holds gold bricks Obviously, he did not bring up this topic on a whim today, but was prepared. ??An old comrade in his sixties, who has no martial ethics, came to sneak attack on a young man in his twenties just because he was a veteran. Otherwise, how could we have already checked the family composition... Seeing that Ding Gaoheng''s matter was a bit of a coincidence, Chang Haonan quickly expressed his position in order to end this topic: Director Ding, I will definitely pay attention to personal issues, but no matter what, I have to wait until the two big projects at hand are completed. I really dont have the energy now..." ?Seeing his answer, Ding Gaoheng was already a little embarrassed, and Ding Gaoheng had no intention of further embarrassing him: In short, if you still cant find a suitable one, you can also mention it to the organization. Its not difficult to get a wife... When he said this, he obviously had a bit of a joking tone. ?Of course, just because the tone is joking doesnt mean the content is joking. ??Although organizing a wife is just a metaphor, for young talents like Chang Haonan who are a bit outrageous, as long as they are officially transferred to the job after graduation, there will definitely be dedicated manpower and even departments to worry about personal issues... Thinking of this, he couldn''t help but feel a little dizzy. ?In his last life, he felt numb when faced with the urging of two elders in his family to get married, but now this posture... ?At this time, Zhu Yadan, who had been following him on the road but was stopped by two checkpoints to check the car and was delayed for a while, rang the doorbell and relieved Chang Haonan. You must be unprepared for tonight. Lets go to my house for dinner together. Ding Gaoheng stood up, picked up the briefcase next to him again and said to Chang Haonan. Because of the topic just now, the latter was actually a little frightened at this time. After all, that is the opponent''s home court. What if we face a mixed bombing of men and women after passing there... But under the current circumstances, he really had no legitimate reason to refuse, so he had no choice but to nod after a moment of hesitation. Happily for him, Ding Gaoheng and his wife did not dwell too much on the issue of starting a family, and the main conversation at the dinner table was serious matters. After all, Ms. Nie is also a well-known expert in precision instruments and computer hardware equipment in my country. She has participated in the research and development of two bombs, one satellite and the Galaxy 2 supercomputer. She has also served as deputy director and consultant of the Science and Technology Commission for a long time. There are actually a lot of common topics between the three of them. By the way, Xiao Chang. Just when Chang Haonan was about to leave, Ding Gaoheng stopped him from behind: "Do you still remember the ''Friendship Plan'' we discussed before?" The former nodded: Of course, remember to cooperate with our reliable businessmen doing business in Ermao, and hire experienced technical personnel from Ermao to work in China in the name of project consultants or similar. ??Although the technological development of China has achieved great strides under the leadership of Chang Haonan, what he can only do on his own is to lead from point to point. ?Although the "point" has made a breakthrough now, if the subsequent "face" wants to follow up, it cannot be said that it is a matter of grasping it. After all, Chang Haonan is just equivalent to clearing the obstacles on the way forward. However, people from all walks of life still need to run the road themselves. But the efficiency of talent training is limited. Even if a technology war like the Turbofan 10 is carried out at the cost of shutting down half of the entire industry, it is impossible to directly create too many big guys who can do their own thing without the help of Chang Haonan. ?Most people still need to practice on several self-led projects before they can gradually grow up. So, it will definitely be of great benefit if some reliable foreign aid can be introduced in the "bringing the noodles" step. Ding Gaoheng took out a folder and handed it to Chang Haonan: "The budget for this plan, as well as supporting facilities such as concentrated residential areas, have been partially prepared. As for the backgrounds of those businessmen, we have also checked. There is nothing suspicious. They are just out to make a living. Damn it, so... its time to see if we can get one or two projects to do a preliminary pilot. The latter opened the folder in his hand and found that it contained some things that Wu Yifan and his import and export company had exchanged between Huaxia and Ermao over the past year or so. Technical information on high-power diesel locomotives Space-based synthetic aperture radar Cargo spacecraft automation control software Medium-sized satellite platform Coal collection and deep processing equipment ? Judging from the results alone, it is basically a case of being hungry and throwing away whatever you catch. There is no definite goal or business scope. ?Some of the things here sound very scary, but what they can get is not complete technical information like Project 11 or the C808 passenger plane, but scattered parts. The completeness is not high and it can only be used as a reference at most. As for the sources of samples and equipment, they are even more diverse. Chang Haonan even saw in a photo a radio station that clearly looked like it had been removed from a tank, as well as the core of a 3BM25 fin-stabilized sabot-piercing projectile. These things are obviously of little value to Chinas scientific research field. At most, some military fans may like them... ?But this is reasonable. ?The situation of Ermao today is a mess. ??If a few foreign businessmen can classify and plan their businesses clearly, that would be a ghost. Fortunately, the core of the Friendship Project is neither physical objects nor materials, but people. As long as you can get in touch with people, you have objective conditions for poaching. So, these bits and pieces obtained by wild roads cannot be completely regarded as worthless things. Okay, Ill find time to meet with him in the next two days to learn about the specific situation in Ermao. ?Chang Haonan put away the folder, said goodbye to Ding Gaoheng again, then opened the door and left. (End of this chapter) Chapter 656 Year-end summary and future planning Chapter 656 Year-end summary and future planning ?When Chang Haonan came here just now, he was riding in Ding Gaoheng''s car. Now that he was leaving the latter''s house, he naturally had no means of transportation. ?However, the distance between the two sides is only about one kilometer. In addition, most of the important people living in this area live in this area. The security level is extremely high, so there is no need to worry about any safety issues. ?Hence, there was no need for him to call Zhu Yadan over to pick him up, but he planned to go back directly on Route 11. It should be eaten after a meal. It is almost New Year''s Eve, so the moon is basically only a thin line like a scimitar. Fortunately, there are a lot of street lights around, so walking normally is no problem. ? Chang Haonan took a long breath and looked at the white mist rising slowly in the air with the light in front of him. ?After working continuously for more than half a year, now there is suddenly no work pressing on him, and he even feels a little empty... The result is... Even though my body has become idle, my mind is still thinking about serious things involuntarily. It is now February 1999. For Chang Haonan, the next more important thing, apart from the two projects that basically only need to be completed step by step, is to release the official version of TORCH Multiphysics. ?The software itself has been almost optimized, and it has gained a lot of popularity around the world throughout last year. First, the new machine tool brand jointly established by Torch Group and C.B. Ferrari does have something to offer. ? Relying on far superior processing efficiency and lower operating difficulty than its peers, it has won a number of landmark orders from the automotive, shipbuilding and aviation industries. ?Especially in the Volkswagen Groups bidding, the bidder had almost selected Yamazaki Mazak as the supplier of the compound turning and milling machining center. ? As a result, just before signing the agreement, the NSK bearing fraud case happened, and the subsequent collapse of the credibility of a series of Japanese companies. In fact, Yamazaki Mazak itself has not been exposed to any bad news. It even stated that it can provide the original production testing data of all supply contracts in the past twenty years, and is also willing to cooperate with third-party re-inspections of all previously sold products. It is highly likely that It''s really innocent. But in the public opinion environment at that time, the Volkswagen Group was at the forefront of the storm because one of its suppliers, NTN Group, was exposed for fraud. Even if it knew that Yamazaki Mazak was fine, it would not have been possible to sign the contract due to the impact of public opinion. The result is that the already hopeless Torch-C.B. Ferrari Group is cheaper. ?However, at least so far, when customers purchase this new series of machine tools, they mainly look at the reputation of the Italians. Including the promotion of the new brand, C.B. Ferrari is also the main one, supplemented by Torch Group. So, this incident alone will not give the latter too much fame. At most, people within the machine tool industry are gradually beginning to realize that this Chinese company has amazing capabilities in machine tool structure optimization and digital simulation of machining processes. ??What really made the name TORCMultiphysics spread among the general public was the advertising space that was unintentionally taken from Jinling Automobile. ??The advertising space on the side of the Ferrari F300 racing car''s side box and below the Shell Oil LOGO. The technical achievements of Jinling Ferrari Research Center were finally applied to the F300 racing car before the end of the season. ?Originally, this upgrade, which was carried out at the penultimate race of the season, was only used as a technical verification for the F399 racing car in the second year. It was somewhat similar to the relationship between turbofan 9 and turbofan 10 on Chang Haonan''s side. ??But the effect of the new aerodynamic package exceeded Rory Byrnes initial expectations. ? In the first race after the upgrade, the F300 relied on its extremely unfavorable cornering speed in rainy weather, and after an unprecedented chaotic start, it took the first place with an outrageous result of second place in lapping. For Chang Haonan, who is familiar with "history", it is a pity that there will no longer be the famous scene of Spa F1 tricycle on this timeline. ?At the end of the season, although Schumacher still retired from the race in Japan with a puncture as he had in his previous life and missed out on the individual championship, Ferrari won the 1998 constructor championship a year ahead of schedule. ??As a result, Torch Group, which became a new sponsor and supplier of racing design tools, became popular in the racing circle and even the entire automobile circle. Logically speaking, in this case, the conditions for releasing an official version have already been met. However, the customized version of the supercomputer planned to be released together with the software, namely Sugon 2000T, still has some final finishing work to be completed. So I finally decided to wait until after the year. After all, industrial software will be an unpopular industry even after more than 20 years, and even if it is exported, it will be difficult to attract widespread attention. ??But if supercomputers can be exported to Europe or even the United Stateseven if they are exported in the form of bundled sales, it will definitely be earth-shattering news. In this way, it is entirely possible to reactivate Chinas computer hardware industry before the turn of the millennium. You must know that at this point in time, although the gap between China''s semiconductor industry and the international advanced level is already large, if it can catch up with the round of technological innovation represented by immersion lithography at the beginning of the 21st century, overall it will still be There is much to be done. Even if high-end commercial-grade semiconductors in the consumer electronics field cannot get rid of imports immediately, they can at least ensure the independence of industrial-grade and low-end commercial semiconductors. ?As long as the latter part of the profits is kept in the country, it is equivalent to opening up the hematopoietic cycle of the semiconductor industry itself, instead of relying solely on national financial allocations. As for the back In China, as long as an industry can make money, it is not difficult to develop it. I can only say that although the market economy is not omnipotent, it is indeed useful in this case. Chang Haonan suddenly realized when he reached the door of his house. He seemed to be thinking about work again just now. "..." It was a bit difficult. ?Although I was focused on work in my last life, it was not so exaggerated. I was even making New Year''s resolutions while walking on the road. ?Of course he also knows that he is not in the mentality of a worker now, so it is normal for him to be more proactive. ?However, since I came back from my annual vacation, I should still make some adjustments to my life structure. ?Thinking of this, Chang Haonan opened the door to his house, changed his clothes and quickly walked into the living room. After all, he just moved to a new house in the afternoon, so he walked around the living room extra times before finding the white phone connected to the outside line. Then, he picked up the phone and dialed his home number. ?It was not yet ten o''clock in the evening, and considering the winter vacation life that was approaching the Spring Festival, it was obviously not enough time to sleep. After three beeps, the phone was connected, and Zhou Lis familiar voice came from the other side: Hello, who is this? Mom, its me. The moment he heard the voices of his family members, Chang Haonan''s feeling of fatigue subsided a little. Xiaonan? ?Zhou Li was also obviously taken aback. After all, Chang Haonan rarely called at this time. ?But he recovered quickly: It should be a holiday for you there soon. Jia Yao went home the day before yesterday Zhou Li''s tone was a little cautious, as if she was afraid of hearing words such as "I won''t go home to celebrate the New Year this year." As a result, Chang Haonan then performed a performance of "whatever you are afraid of will come to you". Mom, during the Chinese New Year this year...its not convenient for me to go back to Liucheng. When she heard this half sentence, Zhou Li almost couldn''t breathe. Fortunately, before she could feel disappointed, Chang Haonan finished the second half of the sentence: So, I was thinking, why dont you come to the capital together and lets celebrate the New Year here. There was silence on the other side of the phone for a moment, and then there was a slightly quieter voice. Apparently it was Zhou Li who was telling Chang Yuanchao and Chang Jiayao about this matter. After a while, Chang Yuanchaos voice sounded next to him: Would it be too much trouble to go to the capital? You can tell from his tone that he wants to agree. I''m just worried that it will make Chang Haonan''s side more troublesome. Its nothing to worry about. There happens to be a flight from Liucheng to Beijing the day after tomorrow. Ill book the tickets for you, and Ill just find someone to pick you up when you get here. ?Chang Haonan tried to dispel his parents concerns: It just so happens that Jia Yao has always said that she wants to come to the capital to visit. The nature of their school is special and she cant come out during the day, so she can only come during the holidays. Also, I just moved to a new place here, and its really a bit empty to celebrate the New Year alone. I wish I could hear my words Zhou Li felt that her family was a bit exaggerated. So this should be helping them find reasons. ?However, she has actually been thinking about it since just now, and now that the words have reached this point, there is no reason to refuse. Thats okay too. But the three of us can actually go by train, so we dont need air tickets..." ?The last time Chang Haonan went home, he even bought them a house. So Zhou Li and Chang Yuanchao must know that Chang Haonan has a little money. ? Its just that for people of their generation, saving money can be said to be a nearly instinctive habit. But the latter obviously cannot agree. Its not that she has any prejudice, its that trains in this era are really chaotic. ?However, Chang Haonan also knew that it would be difficult to convince Zhou Li, so it was better to change his mind directly: Its okay, I booked the flight at the internal price, it doesnt cost a lot of money After some prodding, Zhou Li finally agreed to Chang Haonans arrangement. The latter hung up the phone with satisfaction, and then dialed the number Wu Yifan had left for him... (End of this chapter) Chapter 657 You know that Ermao has an unfinished aircraft carrier, right? Chapter 657 You know that Ermao has an unfinished aircraft carrier, right? ?Chang Haonan and Wu Yifan were scheduled to meet at noon the next day. After all, although this kind of thing may be regarded as work, it actually does not require much effort. The main thing is a personal connection. Considering that the things to be discussed between the two involve a lot of secrets, it is naturally impossible to just find a restaurant to eat outside. ??But if you choose it in the Torch Group or the conference room of the Commission of Science, Technology and Industry for National Defense, it seems a bit too formal and awkward. So, in the end, through Liang Zhuoping, we temporarily booked a private room at the guest house of the Aviation Industry Corporation. To be honest, although the company is about to be dismantled, Chang Haonan and Liang Zhuoping are still not very familiar with each other. But its not worth bothering Ding Gaoheng for such a trivial matter. Fortunately, with the former''s current status in the world, many things don''t even require a facial recognition, just a name. Even Liang Zhuoping could not deny face. So I finally ordered it. Because it is considered an internal unit, and it was considered to negotiate business with foreign customers or suppliers when it was originally designed, confidentiality is relatively good. ?It happened to be a coincidence that when Zhu Yadan parked the car in a nearby parking lot and Chang Haonan got out of the back seat, he happened to see a familiar figure not far away who had also just parked the car. Old Wu! ?Chang Haonan quickened his pace and walked over. ??Wu Yifan also saw Chang Haonan speeding towards him from a distance as soon as the car stopped. He quickly opened the door and got out of the car with a little clumsiness. In his last life, he had been trying to lose weight for twenty years, and his body shape had not been reduced until Chang Haonan was reborn. Unless Chang Haonan entered the weight-loss drug industry in the future, there was obviously no reason to lose weight successfully in this timeline. The two shook hands and then lightly bumped each other''s shoulders. ??We havent seen each other for two years, so the changes are naturally not small. Lao Wu, your business is quite big. In two years, this business has been opened..." Chang Haonan looked at the seventh-generation Mercedes-Benz S600 next to Wu Yifan and joked. At the same time, he turned around and led the other person towards the guest house outside the parking lot. Originally, I was thinking about buying it in a few years, but at the end of last year I heard that it would be discontinued, so I decided to buy it after hesitating for a while. The latter is not a pretentious character. After hearing this, he put his hands on his hips and replied: Let me tell you, when I went to our school for the first time to report in 1993, I saw a car like this at the door. I thought it was really impressive at the time. Later, I dreamed about when I could buy one myself..." ??Wu Yifan recalled his original intention of doing business and followed in Chang Haonan''s footsteps: Moreover, when I go out to discuss business, many customers recognize this thing. When I drove that Lada before, I was not allowed to enter some places... Now that I have switched to a Mercedes-Benz, others can sign the contract much more easily..." It was easy to tell from his tone that he was quite satisfied with the car. In fact, the fact that others sign orders more efficiently may not be directly related to the car, but may simply be because their business scope is larger than in the past and they have gained a reputation. ?Its just that, after all, after spending such a large amount of money to buy something that I have wanted for a long time, I always have to find an excuse to convince myself. But then again. When he said this, Lao Wu and Chang Haonan had already stepped onto the steps outside the guest house door together. The staff inside opened the door and allowed the two of them to walk straight in. After entering the door, the former looked around to make sure there was no one around, and then continued: Speaking of which, I really thought that I was pretty awesome for building such a huge career within two years of graduation. But last year I accidentally discovered that you are nothing like a human being "I have heard about the reputation of Torch Group from Ermao, but I didn''t pay much attention to it at first. Then one day I watched the news and found that the face of the general manager of TM Group looked a bit familiar. When I took a closer look, it turned out that Its you ??Although Wu Yifan is also a serious college student, he comes from a wild background when it comes to business. Naturally, he does not have that formal feeling. On the contrary, he is a bit more gangster than when he was still in school. ??This is also a common characteristic of grassroots businessmen in this era. At the moment, we are still in the last barbaric era of doing business overseas. If you dont have enough background, you can only be a little ruthless. At least thats how it appears on the outside. ?However, Chang Haonan and he have been friends for two lifetimes. Hearing such familiar speaking habits, he felt like "everything is becoming familiar." You cant say that either. Chang Haonan shook his head. After all, Lao Wu next to him had made a lot of money even in his previous life, so he still had to respect his abilities: After all, the Torch Group is a country-owned company, and it has the backing and endorsement from above. You really built it from scratch, and we are not on the same track, so its not easy to compare it directly. While talking, the two of them had already taken the elevator and arrived at the reserved private room on the top floor. For a business banquet, the dishes have naturally been ordered long ago, so after opening the private room door and before the dishes are served, no one will disturb you unless you specifically call for it. Wu Yifan sat down opposite Chang Haonan and continued what he had just said: "Hey, everyone can eat the national rice. Besides, in the current environment, many people are almost starving to death with iron rice bowls. , but it turns out that you can make a lot of money here, this is your level... To be honest, sometimes I regret not studying as hard as you when I was in school..." The communication between the two people is also a bit flattering. Compared with the common mutual compliments that are completely casual, the main difference lies in the heart. So no one felt awkward or unable to continue chatting. ?Furthermore, when he said this, Wu Yifan showed a look of regret on his face. ?However, the little regret in his heart was quickly dispelled by Chang Haonan: Forget it, everyones talents are different. The main thing is to find something that suits you. Otherwise, you wont get twice the result with half the effort..." This is obviously a statement of high emotional intelligence. Low EQ: People must be self-aware... Let alone this life, even if Chang Haonan was a complete blank slate in his previous life, he was still much better than Lao Wu in terms of academics. The latter is really not a candidate for research. On the contrary, it is more suitable for him to go to sea and explore the world. Lao Wu held his forehead with one hand and showed a helpless expression of "As expected of you, boy". ?At this moment, the doorbell in the private room suddenly rang. It means that a waiter is outside. ?This is a private occasion. Naturally, it is impossible to rush in directly when the food is served. You must wait until the guests give permission before entering. On a small cart, there were six dishes, four hot and two cold, plus a soup. This cant exceed the reception standards, right? After the waiter left, Wu Yifan shook out his napkin and asked in a semi-joking tone. He has traveled all over the country for so many years, and naturally knows that the six dishes and one soup in front of him are nothing at all according to the standards of a business banquet. He just remembered the hard life Chang Haonan had when he was in college. He usually rarely added a second dish, but now he finally I just got ahead of myself, so I just made a joke. The latter also smiled and waved his hands: "What''s wrong with this? The standards set for you are based on the standards for receiving the highest-level foreign customers. That is to say, our relationship does not need to be proved by ostentation. I only asked them to serve six dishes. Really If I change it to someone I dont know, then 12 is not too many..." Was it a waste? It is indeed a bit wasteful. But the general background of this time is like this. The standard of reception is too low, and it is easy for the other party to think that you are looking down on others. Immediately afterwards, Chang Haonan also remembered his stingy persona when he was in school, so he added another sentence in the same joking tone: Besides, if you cant finish eating, you can still pack it away... ?Wu Yifan was also happy: Im afraid its inconvenient to pack a business banquet Of course its inconvenient for me, but I can ask the driver to pack things secretly in the back, and no one knows After the fun was over, the two finally got down to business. "Old Wu, I have seen all the things you have brought back in the past two years. There are indeed many kinds of things, but in general they are scattered, and most of them are superficial and not too in-depth." ??The purpose of Chang Haonan''s trip is almost obvious, so there is nothing to beat around the bush, so he goes straight to the point: "So, the superiors sent me here this time to see what kind of channels you have in Ermao, and to try to see if we can systematically introduce some technologies and products that are useful to us, including talents, of course. " ?Wu Yifans expression soon became serious: As for channels, we have actually established contacts with many companies or research institutions in Ermao. As for going deeper..." ?He looked a little embarrassed: After all, we are just a private company. Although the scale has grown a bit now, our ability to resist risks is still relatively poor, so we have always been able to maintain mutual trust and cooperation through small fights. The reason why I want to cooperate with the organization is that I can improve my ability to resist risks and take on a few big orders. Chang Haonan nodded slightly when he heard this. What the other party said does make sense. "Then...if we don''t consider the risk issue for the moment, can you get anything worth mentioning through your current channels?" Is this... ?Wu Yifan hesitated for a moment, and then, although he knew there was no one else here, he still lowered his voice: Brother Nan, you know that Ermao has a half-finished aircraft carrier on the Black Sea, right? "ah?" ?This sentence was absolutely shocking, and it made Chang Haonan confused for a while: Can you buy that thing back? ?Of course he knows about the Type 1143.6 aircraft carrier, which is the Varyag, the second ship of the Kuznetsov class. But in the original timeline, this semi-finished aircraft carrier was not brought back by Wu Yifan and the others. (End of this chapter) Chapter 658 Move the entire aircraft carrier project back? Chapter 658 Bring the entire aircraft carrier project back? Can''t blame Chang Haonan for making a fuss. ??If there is any difference between this current timeline and the previous life, it is that there is an extra variable like himself. ??But no matter how strong the butterfly effect is, it still has to have some basic logical relationship. Chang Haonan just ran through his mind a few...a dozen major things he has done since his rebirth, and he really didn''t find anything that would affect the pace of selling aircraft carriers on Ermao''s side. ?However, while he was brainstorming, Wu Yifan shook his head: "That''s not possible. Ermao''s company quoted US$20 million for this ship last year, and then they said it would be auctioned. We couldn''t raise that much money at first, but then we raised enough money, and we couldn''t improvise what we needed for the auction. Documentation, I had to give up. Thats right ?Chang Haonan''s first reaction was to breathe a sigh of relief. After all, the less deviation this happens, the better it is for him. ??Although sooner or later we will enter a completely different timeline from the previous life, the core point of difference will only appear a day later. If nothing else, it will have to wait until after September 11, 2001. ?But then, Wu Yifan changed the subject: "But the person who bought the aircraft carrier in the end was a friend of my partner, so...it''s actually pretty much the same. We also know most of the things in the whole process." But this cant be considered your channel, right? ?Although Chang Haonan has a good relationship with the other party, when it comes to such a big job, business matters must be dealt with. Otherwise, you are not only harming yourself, but also harming the other party to some extent. Listen to me. ?Wu Yifan swallowed the piece of fried pork in his mouth and continued: When bidding, you need to state the purpose of purchase. The person said that he wanted to take it home and park it at the beach as a tourist attraction, just like he bought the Minsk before. "But we knew at that time that this must be pure nonsense. The Minsk could only be used as a theme park after we bought it because it had been in service for more than 20 years at that time and was in disrepair. Before we got it, it was still in disrepair. It was destructively demolished by the Koreans and has no other value at all. " "The Varyag does not have this problem. The entire ship is about 60% complete. Besides being soaked in the water for a few years, it is basically a semi-finished new ship. As long as the equipment is reinstalled and refurbished, it can be directly It can be used as a serious aircraft carrier..." Listening to the other party''s analysis, Chang Haonan remained silent, but still nodded in agreement. This does not require him, a reborn person, to look at this with hindsight. Even at this time, everyone agreed that the Varyag would definitely be rebuilt sooner or later after it was bought. Otherwise, there wouldnt be so many obstacles in the middle. When I bought the Melbourne and the other two Type 1143s, there were no such problems. Old Wu opposite took a sip of mutton soup, then raised his head again: Since we are building an aircraft carrier, the aircraft carrier is not just a simple ship. So, after we found that it was too late to prepare for bidding, we focused on other supporting items. Hearing this, Chang Haonan did feel a little overjoyed. ?As Wu Yifan just said, aircraft carrier, as a systematic project, involves a vast amount of content. Not only technical, but also training and usage. ?Most countries, even if they pick up one for free, will not be able to use it or use it well. ?Although Chang Haonan has been expanding his research scope over the years, he still started out as an aviation major and knows very little about the shipbuilding field. Even if he is currently studying, he has some serious skills. As for the command of shipborne aviation... That would be even more of a layman among laymen. And even the system cant do anything about it. Therefore, if we can get the support of experienced technical personnel from Ermao in this regard, it will undoubtedly play a huge role in promoting China''s aircraft carrier business. However, he was already a little moody now, so he did not express his excitement on his face. Instead, he took a bite of food to calm down, and then asked: "What are the details?" Then...thats a lot to say. Lao Wu raised his head slightly, as if thinking, stretched out his fingers and began to take inventory one by one: For example, although the Azov Steel Plant is not specialized in making marine steel, it can also produce a considerable part of the high-grade steel required by aircraft carriers, and it also maintains some technical data related to post-processing and welding processes..." "Several An-71 early warning aircraft produced by the Antonov Group are said to be able to take off from the ski jump deck. I don''t know whether this is possible, but it should be difficult to park in the hangar. However, if the country finds it useful, It will definitely be no problem to package the prototype and technical information back..." "As well as the Black Sea Shipyard itself, there have been no orders in recent years. I used to have some scattered orders for small barges and fishing boats, which barely stabilized the overall situation there. If you need talents in this area, then it is best to I better start quickly, otherwise I will probably be poached by Europe and the United States sooner or later..." The other is a carrier-based aircraft training facility. They seem to call it Nitka. They build something similar to an aircraft carrier deck on the ground to allow pilots and commanders to conduct simulated training..." ?Wu Yifan frowned, obviously racking his brains and trying to describe it in the most vivid way possible. After all, for people who have never seen it, it is indeed difficult to imagine what the Nitka base looks like. ?However, Chang Haonan naturally saw this thing on the Internet later, so he interrupted the other party directly: "It doesn''t matter, I happened to have seen the information on that thing, just go on." Lao Wu nodded after hearing this and skipped the explanation part: In short, although Da Mao is using that thing, it is under Ermaos control after all, so we can send people in the name of visiting, and they can go in and take a look at it as long as they pay money. "Also, a fixed facility in Nitka cannot be moved. However, the person in charge of that base has a good relationship with me and said that all their technical information, including the base itself and related to carrier-based aircraft training, can be transferred to one place. Pack it up and sell a copy to us, but the asking price is a bit high, 8 million U.S. dollars, which is almost half of that aircraft carrier. For a businessman like him, just ordering copies of information and selling them for 8 million is really a pitfall compared to buying a boat. But Chang Haonan knows that if you really want to say it, the 8 million may be more cost-effective... ??And if the things mentioned above can really be obtained over there, the faster the cooperation between the two parties, the better. Actually, he didnt doubt this too much. It was a lifetime of trust in Wu Yifan as a person. More importantly, many details of what the other party said are still not public in this era. If you havent seen it with your own eyes, its impossible to know. So, he did not hesitate for too long: These channels are indeed quite valuable. When I go back, I will make a report with the superiors to see how we can work out a specific method of cooperation. "But now that the New Year has passed, it will take until after the New Year to wait for the formalities and so on, but these things cannot be postponed, especially the technical staff of the Black Sea Shipyard and the relevant information of the Nitka training facility. You have to take it down as quickly as possible, otherwise I''m afraid something will change when the aircraft carrier returns." ?Wu Yifans eyes lit up after hearing the first half of the sentence, but the second half made him hesitate a little: Brother Nan, let me tell you everything. If this company belongs to me alone, then I will be fine with your words. "But now I still have a partner. According to Nitka''s information, the asking price is 8 million US dollars. If we find another place to hire employees from the Black Sea Shipyard together, then including all kinds of management, the cost will be 1,000 US dollars." Four to five million US dollars, if you want to advance it directly..." ?Chang Haonan naturally understood what the other party meant. ?The brother has to settle the accounts clearly. No matter how much he says, he can''t let others risk eight-digit dollars with just a word. "As for money, we can''t directly inject capital into you, at least not until you get your things back, otherwise something will definitely go wrong." "However, we can sign a few labor contracts first. The content is that you will act as an agent to hire a group of 20-cent engineers and be responsible for bringing them back to the country. In this way, we will pay you part of the advance payment first, and with the contract written in black and white, it can be considered How about reducing some of your risks? Having said this, Wu Yifan could not make any additional requests. After all, this kind of business requires officials to endorse you. If you dont want to do it, others will do it, and you cant do it without taking any risks. So, he nodded decisively: "Okay, then after I go back today, I will contact Ermao and let them start preparations!" (End of this chapter) Chapter 659 Western Balkans Conspiracy Chapter 659 The Western Balkans Conspiracy After the business talk is over, the rest is naturally the process of eating and drinking. Speak up, Brother Nan. During the dinner, the two were chatting about some past events that happened during their undergraduate years. Wu Yifan suddenly changed his tone and said to Chang Haonan mysteriously: If you want to transport some large physical samples, such as those An-71 verification aircraft, back to the country, you will definitely have to take the sea route. The latter nodded and motioned for the other party to continue speaking. "but" At this point, Lao Wu obviously hesitated, but he continued after a moment: I estimate that there may be chaos in the Balkans this year. If there is too much movement, shipping in the Mediterranean may be affected. These things, including the transportation of the aircraft carrier, may have to be delayed until the second half of the year. If this is the case, you must be mentally prepared. In addition, it is best to take this into consideration and add an exemption clause for us in the contract. "Um?" Chang Haonan was picking up vegetables. After hearing these words, his chopsticks stopped in mid-air: Elaborate? After finishing speaking, he added: Im referring to the Balkans part. Dont worry about the disclaimer clause in the contract. It will definitely be fine. Logically speaking, although that place has not been peaceful in the past few years, in the original timeline, at least the Allied operation itself was relatively sudden. Why is it now as if everyone knows about it? The organization has intelligence sources from Europe, so the information is better than in the previous life. ??But how did Wu Yifan, a treacherous man, know? I have some contact with the intelligence agency of San Mao. Before I returned home this time, I heard some rumors from a small leader, saying that they might jointly form a peacekeeping detachment with Da Mao. Chang Haonan frowned slightly after hearing this: "that''s all?" ?Although the peacekeeping detachment did exist in the previous life, it is obvious that the previous conclusion cannot be deduced logically. "Well" ??Wu Yifan looked at Chang Haonan who looked suspicious, his face stiffened, and then he sighed helplessly; Okay, I know I cant fool you. Actually, its because someone asked us to secretly transport weapons and equipment over there. Although they and we used false identities, we can probably guess that the person opposite us is someone from the Maoist Intelligence Agency. My grass. ?In front of old and familiar friends, Chang Haonan had no baggage. In shock, he uttered the quintessence of Chinese culture: Can all of you take this job? Its definitely possible. Weve dealt with the customs in several countries over there, and we didnt even have to stop the car to go through customs, but in the end we still didnt pick it up. ??Wu Yifan shook his head like a rattle: "My partner originally wanted to do it, but I felt that the new head of the Federal Security Council who was appointed by Mao was confused and difficult to deal with, so I stopped him." ?Chang Haonan thought for a moment and discovered that the chairman of the Federal Security Council at this time was indeed no ordinary person. It should be said that Lao Wu still has good vision in this aspect. But this seems worth digging into. So he paused for a moment and then asked: Do you know what Damao is transporting? ?Lao Wu leaned his upper body on the backrest and raised his head slightly as if thinking: Im not sure, but judging by that, Im afraid its not just some gadgets like rifles or bullets. "First of all, there is no shortage of light weapons in the Balkans. There is no need to go there with a big fanfare. Secondly... they even asked us if we can handle the railway transportation in Romania, so I guess there must be at least artillery shells or missiles. " ?Chang Haonan couldn''t help but take a deep breath. ?Things seem to have started to go a little awry. After a while, he tentatively spoke again: "Then...if you don''t do it, Old Wu, will this transportation be ruined?" As a result, Wu Yifan immediately waved his hand: "How is it possible? There are so many people doing this business in Southeast Europe now. Even if we don''t take it, they can always find someone to do it. That''s why I think it''s difficult to settle this matter casually." ??During the time when the two seemed to be chatting, Chang Haonan had many speculations running through his mind It''s possible that this matter existed in his previous life, but he didn''t study it specifically, so he didn''t know about it. It is also possible that Da Mao was affected by the butterfly effect he brought and decided to adopt a more active response strategy in this incident. At a certain moment, Chang Haonan seemed to have caught the thread that he had always felt existed but could never find. Lao Wu. He raised his head and looked at Wu Yifan who was drinking soup opposite: If, I mean if. If you take this kind of job, whats the biggest thing you can transport in? The latter suddenly felt that the atmosphere in the entire private room had solidified, and almost involuntarily shrank his neck: Our scale is not big enough, and we certainly cant do things like tanks and armored vehicles. Thats too obvious. Even if we bribe the checkpoint, we cant treat people like fools. But as long as it can be loaded into a covered boxcar or container, there is a high probability that it can be transported. If it can be loaded into a truck, then it is almost casual. If it were a large organization with a relatively well-established background, it would be even more powerful than us. ?Chang Haonan suddenly had a bold idea. From the perspective of hindsight, thanks to good camouflage and cover, the Allied operation actually failed to destroy the vast majority of the Confederate ground units. The loss rate calculated after the event was even less than 10%. The real heavy losses were the civilians and civilian targets who were bombed indiscriminately, which ultimately made it impossible to continue to resist. In other words, if you can use some tricks to make a big difference, then even if you cannot make a comeback, you can at least cause enough trouble to the attacking side. In the past few years, he happened to come up with some equipment that is very suitable for this environment... For example, the Aerospace Technology Research Institute took the lead in developing the multi-station collaborative passive positioning technology. is very suitable for anti-hiding. ??Moreover, if it is in the form of a ground detection station, it can even be improved on the basis of existing radar. ? ? If you do a rough calculation, the operating space is not low. ?Of course, the premise of everything is that you must be able to find a way to do it behind the scenes. After all, its not time to really break up with your opponent yet. Brother Nan? ?Looking at Chang Haonan who had been silent for a while, Wu Yifan called out with concern. ?There is absolutely no room for error in this kind of thing. Even if he is an old classmate, the former cannot shake off his thoughts now, so he quickly added: Oh, I was just wondering if it would be safer if you slowed down your movements. ??Wu Yifan did not doubt that he was there. After hearing this, he quickly vetoed: "That''s not necessary. Didn''t you say before that the most useful things are the people at the Black Sea Shipyard and the information on the Nitka facilities? These two things don''t need to be transported by sea. They can be transported directly to the country by plane." "But the aircraft carrier shell needs to be paid attention to. Even if there is no incident in the Balkans, because there is no power, we can only rely on tugboats for the whole journey. I am afraid that the Suez Canal and the Bosporus will not be easy." Chang Haonanxin said that your guess is quite accurate. In my last life, I was stuck in these two places for a long time. The Strait was finally passed, but the canal did not pass through until the end, and it ended up around the Cape of Good Hope. Thats true. He nodded, and then changed the subject: But this is not our business, there will be other people to worry about, so its better not to meddle in those nosy matters Chang Haonans fully public identity is now limited to the general manager of Torch Group and the acting director of the Computing Center of Beihang University. Therefore, he generally avoids revealing too many concerns that are inconsistent with the work of these two positions. Subsequently, the two quickly started chatting about other topics... It wasnt until the meal was finished and Wu Yifan was sent away that Chang Haonan sat back in the back seat of the car and his expression turned serious. Chief, are you going home? ?Zhu Yadan asked as he fastened his seat belt. "No." Chang Haonan shook his head slightly: Go to the Science and Technology Commission again. (End of this chapter) Chapter 660 Passive positioning and anti-stealth radar Chapter 660 Passive positioning and anti-stealth radar ??When Ding Gaoheng saw Chang Haonan appearing at the door of the office, his first reaction was to be a little surprised. Xiao Chang? Havent you already started your Spring Festival vacation? He put down the half-read report in his hand and motioned to Chang Haonan to find a place to sit. Its indeed the Spring Festival holiday, but my family wont arrive in Beijing until tomorrow, so I dont have anything to do today. I just met with my classmate and talked about the current situation in Ermao. ?The latter took off his hat and scarf, and then sat in his most accustomed position on the sofa. ?However, what Ding Gaoheng paid attention to first was the first half of the sentence: Your family is coming to Beijing to celebrate the New Year... Do you need to organize transportation and pick up and drop off after coming to Beijing? ?Chang Haonan quickly waved his hand: No, no, no, Ive already bought the air ticket. As for the transfer, I have nothing to do tomorrow anyway, I can just go by myself. After all, it is only human nature to pick him up in person. Ding Gaoheng did not insist on this matter. He just changed his tone and said: Actually, given your current situation, you can transfer the working relationship of your immediate family members to the capital. I have sent people from the organization to coordinate before, and I have also consulted their opinions through the parent care unit, but in the end they both refused. If you have the opportunity this time, you can persuade them again..." I know this. Chang Haonan was not pretentious, but said with a helpless smile: "At the beginning, when I received the May 4th Youth Medal the year before last, our local city mentioned the matter of transferring my parents'' jobs, but they felt that their abilities were limited, and if they were really transferred to any key positions, they would lose their jobs. , but it has a bad impact on me. Ding Gaoheng laughed heartily after hearing this: "In this case, we will definitely give them to idlers, so we don''t have to worry about losing the chain." However, I still have to say that I admire your parents for maintaining such a calm attitude. What is this called... a tiger son without a dog father? Thats pretty much what it means anyway..." Anyway, its not easy for the two of them to cultivate talents like you, Xiaochang After the family issues regarding Chang Haonan came to an end, Ding Gaoheng turned to the next matter. By the way, you just said that you have met your classmate who is engaged in import and export business? ?Originally, according to Ding Gaohengs plan, as long as he could meet with Wu Yifan during the entire Spring Festival: You dont have to rush to report to me about this matter. Anyway, even if we take any action, it will basically have to wait until after the Spring Festival holiday. Since it is a holiday, you have to learn to put your work aside for a while. "To tell you the truth, when I went out this morning, I really planned to go out to have dinner with him and then go home." Chang Haonan replied: But while we were eating, he mentioned several very important things to me. Regarding the situation in the Balkans, I felt that we should not delay for too long. It might be too late after the new year. Ding Gaoheng didnt speak, but he looked relaxed just now, but now he suddenly became serious. The whole person also assumed a posture of being ready to listen and think. ?Seeing this posture, Chang Haonan also sat up a little straighter: He said that before he returned home this time, someone entrusted them to smuggle some goods overland to key areas in the Balkans. The quantity was large and the volume was not small. Trains may even be used. "Although they did not take the job in the end, based on the other party''s description, it is speculated that it should be military supplies, and the people who hired them can basically be the intelligence department of the Russians." Ouch! Ding Gaoheng was almost in a state of excitement: If thats the case, that means ?Halfway through the words, he regained his rationality and murmured to himself: No, although the situation at Lao Maozis side is much better than in previous years, it is not the Big Brother period after all. It is impossible to directly confront the Americans over the Western Balkans..." "But then again, after all, this area is their traditional sphere of influence. Even if it is shrinking now, they should still have the ability and intention to give others eye drops..." ??????Apparently, this news made his CPU A bit overheated. This is normal. After all, in the current 1990s, Mao Maos national policies are eager to change three times a day. ?Dont tell others, even they themselves may not know what to do next. ?However, Chang Haonan knew. ?In the last life, although I had never heard of arms smuggling, Da Maos VDV Superman did occupy an airport at a strategic location in the Western Balkans in June 1999. Although it had no impact on the final outcome, and the logistics support did not keep up, at least the attitude was there. Looking at Ding Gaoheng who was in a dilemma, Chang Haonan further said: Although it is difficult to change the overall situation with our current capabilities, I think it is entirely possible to use the Russians smuggling behavior as a cover to support some less eye-catching but very critical equipment. Firstly, it can cause some trouble to the opponent, and secondly...it can also speed up the process of changing the equipment of our army. Ding Gaoheng raised his eyes and glanced at Chang Haonan sitting on the sofa: Im afraid this latter part is your kids real purpose The latter scratched his head and said nothing. "Although it seems feasible in theory, after all, even if someone gets caught, the blame will naturally be placed on the Russians and will have nothing to do with us." Ding Gaoheng said and resumed his semi-lying position: But we cant transport fighter jets or anti-aircraft missile systems with great fanfare. If its just some small pieces, or even portable anti-aircraft missiles, it wont mean much..." It is indeed so. ?Chang Haonan finally found the opportunity to get to the point: "But in the past few months, the Shanghai Aerospace Technology Research Institute and the 14th Institute of Electrical Engineering, of course I also participated in some work, jointly developed a passive positioning radar based on the old VHF search radar, which can be directly used by all over the world. To upgrade the P18 radar, there is no need to replace the antenna, just modify some rear-end parts. The most important thing is that there is no difference in appearance at all. " Whats the role? Ding Gaoheng''s movements remained unchanged, but his speaking speed and breathing had significantly accelerated. "When the enemy has a strong radar signal source in the war zone, it can be used directly to counter radiation. Unfortunately, the early warning aircraft is too far away from the battlefield. Our supporting missiles have not been developed yet, and even if they are developed, they will not be able to fly there with great fanfare. Its shipped overseas, so it doesnt make much sense. However, when the electronic signals in the environment are relatively clean, this radar can also locate through multi-point passive detection, and even lock on stealth aircraft. "Considering that neither the B2 nor the F117 can currently use long-range weapons, they can only fly over the target and bomb from the air, and their maneuverability is very poor. Therefore, if you can search for the target, you can try to see if you can shoot it down! " Ding Gaoheng also completely understood this somewhat crazy plan at this time: So, are you going to get a few sets of the components needed to upgrade and improve this radar, and let them develop an anti-stealth radar on their own? Thats right. Chang Haonan nodded: "The use of multi-point fixed radar stations on the ground for passive positioning is not a particularly new technology in itself. It is just a direct improvement on the old model of radar. No one has tried it in the past, so it should be able to catch the opponent off guard. " Behind the seemingly crazy idea, there is quite a thoughtful consideration. First, there are indeed channels to sneak things in. Secondly, even if the worst case scenario occurs, it will only result in the loss of a batch of radar parts and will not involve more things. ?However, once it succeeds, the results will be immeasurable. The limit is to use a small amount to make a big gain. Therefore, after weighing it in his mind for a long time, Ding Gaoheng finally made up his mind: "This is a serious matter. Don''t tell anyone about this matter yet. I''ll go ask for instructions from above!" (End of this chapter) Chapter 661 I, an ordinary state-owned enterprise employee Chapter 661 I, an ordinary state-owned enterprise employee When I came out of the Science and Industry Committee again, it was almost time to get off work. Chang Haonan walked down the steps and suddenly noticed a snowflake falling on the clothes on his shoulders. Looking up, I realized that the weather that was quite sunny when I came in was now covered with a layer of clouds. ?Originally, this kind of weather is normal in the winter in Beijing. But combined with the topic he just talked about with Ding Gaoheng, it feels like "dark clouds are about to destroy the city" or "the rain is coming and the wind is filling the building". In fact, if possible, Chang Haonan even thought about asking the organization to withdraw people from the Balkans in advance. ?But just a moments thought will tell you that this wont work. First of all, it is impossible for the higher-ups to make such a big move related to national policy just because of his words that are similar to those of dancing masters. Secondly, overseas institutions are legally equivalent to national territory. Even if you withdraw the person, if the same thing happens in your previous life, you can''t just let it go. Treat the symptoms rather than the root cause. ?Furthermore, even if China is currently on the strategic defensive and keeping a low profile, it is impossible to solve the problem by simply giving in. If you seek peace through struggle, you will survive in peace; if you seek peace through concessions, you will perish in peace. So, the final key lies in countermeasures. As for the risks ?That must exist. ??If you want to make a big difference with a small thing, you can only walk a tightrope. Damn, this world ?Chang Haonan murmured to himself, swearing, which was a small vent. Rationally, he knows that he has done a lot in the past three years. But emotionally, these obviously still cannot fundamentally reverse the situation, so it is still difficult to feel satisfied. I can only say that in the 1990s, the gap between China and its opponents was indeed exaggerated. Thinking about it this way, it took more than twenty years to roughly catch up with the opponent in my previous life. Its really outrageous... ?Chang Haonan lamented the difficulties of his predecessors as he came to the parking lot and opened the car door. ? He sat in the back seat and breathed a sigh of relief: Lets go, go home this time. The snow outside the car window is falling harder and harder. The street lamps and storefronts are also decorated with some festive decorations with a New Year flavor. Such a peaceful scene finally made Chang Haonan''s heart, which had been a little depressed, gradually relax: By the way, remember to call tomorrow morning and ask if the flight from Liucheng will be delayed. We will pick him up. Hey, okay. ?Zhu Yadan nodded. Also, help me clean up when I get back later. ?Chang Haonan leaned his head on the side window and said. Otherwise my mother will have to nag me all day tomorrow He thought to himself. ?Of course, the second half of the sentence was not spoken. Otherwise, the character design is a bit broken... It snowed heavily until midnight. Fortunately, when I got up the next day, it was nice weather. So flights were not affected. Speaking of which, I havent been to Nanyuan Airport for a while. How ??After Zhu Yadan parked the car, Chang Haonan looked at the terminal building that seemed to have changed a lot in front of him, and for a moment he was a little at a loss. When he first went to Shengjing, this was where he started. ?Later on, when I was enjoying free air tickets on United Airlines, I always stayed here when traveling to and from Beijing. Its just that not long after that, he stumbled upon another special plane that was not entirely his own on paper, but was actually used by only him. ?So we all went to Xijiao Airport. ??But it had only been a year and a half since the last time he came here, and he almost couldn''t find the exit... "I heard that United Airlines chose this airport as its base last year. Then, in order to better adapt to future domestic technologies, the Science and Technology Commission allocated a special sum of money to update the entire aviation facilities at the airport. " Zhu Yadan locked the car, came behind Chang Haonan and explained: The airport felt that since all the aviation facilities have been updated, they should work tirelessly to renovate the passenger facilities from the inside out, which is what it is today. ? ? "Okay..." ? ? Chang Haonan nodded helplessly. I didnt expect that this matter could have something to do with him. ?However, the first C808, which will be assembled with large components, will not roll off the assembly line until March or April next year at the earliest. The larger C909 has only just finished its final assembly workshop. The construction of supporting facilities so long in advance is enough to show that the Science and Technology Commission is really in a hurry when it comes to civil aircraft. But it makes sense when you think about it. After all, although the management of the civil aviation industry has been firmly in the hands of the Science and Technology Commission, the civil aviation industry itself has not. Then it is inevitable to be given some eye drops. ?For example, the MA 60, which is about to begin mass production, has not been sold as many domestically as export orders. Although the above is that administrative orders can be used to require several major airlines to purchase a certain number of domestic models. But on the one hand, this is the final stage of the WTO accession negotiations. With countless eyes at home and abroad watching, it is not advisable to do anything too blatant. On the other hand, there are policies at the top and countermeasures at the bottom. Others can use methods such as deliberately reducing the attendance rate and on-time performance of domestically produced aircraft to violate the policy. ?This kind of problem will definitely be solved slowly over time, so it is impossible to give strong medicine in a short period of time. But in this way, as the only United Airlines that can be controlled by the Science and Technology Commission system, the burden on its shoulders will be very heavy... ?Just when I was distracted, a buzzing sound of an approaching propeller came from mid-air. A Y-7 landing. Obviously, this is the flight that Chang Yuanchao and the three people took. The distance between Liucheng and Beijing is less than 500 kilometers. Even if there is one flight every week, not many people will take it. If it is operated by a mainline passenger aircraft like the A320, it will be completely lost. ?Chang Haonan and Zhu Yadan walked towards the exit marked "Domestic Arrival". About twenty minutes later, three figures carrying large and small bags appeared in their field of vision, looking around, obviously looking for someone to pick them up. Although I told you on the phone before not to bring too many things with you. But it is obviously impossible to have an effect. ?Chang Haonan waved towards them, and the three of them quickly walked towards this side. Dad, Mom, Jiayao. Xiaonan. Long time no see, brother. I can only say that the army really trains people. ?It has only been a year and a half, but Chang Jiayao has already changed completely compared to before college. Even compared to the time Chang Haonan went to see her before, it was very different. Lets go, the car is parked outside. ?Chang Haonan picked up the two larger packages on the ground with both hands, looked at the two larger packages, and called the three of them to prepare to turn around and walk out. ?Zhu Yadan hesitated for a moment, but still only helped to take one. ??Although the probability of encountering danger in the capital is low, according to requirements, she should try her best to ensure that at least one hand is free just in case. This is ?The last time Chang Haonan returned to Liucheng, the security level was still relatively low, so Zhu Yadan did not follow him, and naturally the two elders did not know him. I am the chiefs attach, just call me Xiao Zhu. As soon as these words came out, Chang Yuanchao and Chang Jiayao, who were also in the powerful department, were immediately shocked. ??If the word "chief" is placed in the military and police system, it is nothing. It can be called a mid-level commander or a leading cadre. But Chang Haonan is not a military policeman, so he can be called that... ?Things are obviously not simple. Zhou Li next to her didnt notice anything strange. Instead, she looked Zhu Yadan up and down: The young man is so handsome... ?That look in his eyes even meant he was looking for his son-in-law. ?Chang Haonan and Zhu Yadan were speechless for a moment, but in the end they did not explain in public. After all, the latter, an indistinguishable figure of male and female, is part of the job. I said brother After leaving the waiting hall, Chang Jiayao walked quickly behind Chang Haonan: Where have you gotten into now Since you visited me at school last time, although no one has said it clearly, I can feel that Instructor Zhangs attitude towards me has been different... Obviously, Zhang Jiujiang still has some room for improvement in his acting skills. Is this... ?Chang Haonan even felt that it was not easy to explain for a while: Can be regarded as a formal employee of an ordinary state-owned enterprise... (End of this chapter) Chapter 662 I designed that plane Chapter 662: That plane was designed by me In fact, there is nothing wrong with this answer. ?After all, Torch Group is still an enterprise under the Academy of Sciences on paper, not a unit directly under the central government. It is not an "ordinary state-owned enterprise". As for regular employees, its even considered as putting money on their own faces ?His files are still at Beijing Hang University, and he just holds the position of general manager of Torch Group. ??If I have to say it, I can only be regarded as a contract worker... It will take another three months to become a regular employee. ??If Zhu Yadan hadn''t stepped forward and opened the car door almost as soon as Chang Haonan finished speaking. Chang Jiayao next to her had an expression on her face: "I''ve read a lot, so don''t lie to me." The Toyota Crown was still quite popular in the 1990s. At least the average person is definitely not able to afford it. "Well" Chang Haonan didnt mean to hide anything, but his identity was unique to Scorpion Baba in the country, and it was hard to explain in just a few words: My situation is more complicated to explain. Ill explain it in detail later when I have time. As he spoke, he opened the trunk and started stuffing things inside. Chang Jiayao could roughly guess that she was worried that the old couple would be surprised by the good news and shout something uncontrollable in front of a large audience. The five people quickly got into the car separately. Since we are all family members, there is no need to be so particular about seats or anything like that. ??This was Chang Jiayao''s first time in the capital, so she specially occupied the co-pilot''s seat in advance. ?Although the old couple had been here before, it had been several years, and they didnt stay long at that time. So Chang Haonan squeezed in the middle of the back seat very consciously. After sitting down, I found that the younger sister in front of me could not help but be curious and was looking around. After all, she is just a 19-year-old girl, and it is inevitable to be excited when seeing new things. So he told Zhu Yadan who was starting the car: When you go back, turn down a little and walk through Changan Street. ?Although due to work, he almost passes there every day in the capital, it doesn''t matter anymore. But for those who are new to the capital, it is a must-visit place just like the Great Wall. "good." ?Zhu Yadan nodded while reversing the car. ?The old couple sitting on either side of Chang Haonan, one on the left and one on the right, originally wanted to show a calm aura in front of the two children. But when Zhou Li heard Chang Haonan''s words, she turned her head and said seemingly casually: By the way, I used to watch TV, and it said that every morning, there would be a team of Peoples Liberation Army soldiers on the square responsible for raising the national flag together with the sun? ?These words were almost made explicit, and Chang Haonan naturally understood the deeper meaning. Obviously the old mother wanted to see it herself, but was too embarrassed to say so directly. Yes, where I live is not too far away. When the weather is nice, we can go there and have a look. He nodded and replied. ?In fact, in the 1990s, strictly speaking, the person responsible for raising and lowering the flag was not the People''s Liberation Army, but it is obviously pointless to dwell on such details. Cars were speeding by on the streets of Beijing. Nanyuan Airport is still quite far from the city center, so when he was about to arrive, Chang Haonan noticed that Zhou Li could no longer hold on anymore and fell asleep leaning against the window. "mom" ??He originally wanted to wake his mother up, but was stopped by Chang Yuanchao on the other side: Dont call her, she will come over again anyway. "Since you made that phone call the day before yesterday and said you would take us to Beijing to celebrate the New Year, your mother has not said anything in the past two days, but she has been so excited that she can''t sleep well at night. She just took a plane for more than an hour, so she is probably tired. ?Chang Haonan nodded, indicating that he understood. ? Among other things, the first time I flew on a plane, I experienced the hard work of running 7 on a whiteboard. It was indeed a difficult journey. ?But thinking of this, he looked in front of Chang Jiayao who was staring attentively outside. By the way, Jiayao. Hearing her brother calling her, Chang Jiayao turned her attention away from the bustle outside: "What''s wrong?" You should be at the end of the first half of your sophomore year, right? Chang Jiayao did not reply.?????This is obviously not a real problem, it is just paving the way for the future. So have you flown a plane before? Say that Chang Haonan now naturally no longer thinks about becoming a pilot. But after all, it was also a childhood dream, and now it has been realized by my sister. To say that I feel a little regretful in my heart, there is still a little bit of regret. Is this... Chang Jiayao hesitated for a moment: Originally, we were supposed to start flying in our junior year, but for some reason our current class suddenly started an aviation experience course in the second half of last year. "The instructor is driving behind us, not letting us operate the aircraft, and takes us through the flying maneuvers. Then he gives us a map, a page of a book, or something else, and lets us read it while flying in the sky. After the maneuver is over, we can remember it after reading it. How many." Its quite interesting, everyone likes it, but it shouldnt be considered as flying a plane yet. Chang Haonan naturally understood immediately after hearing this. These were the students who should be selected to participate in the military parade in the second half of the year. Because it is impossible to come in a big way, so this is the only way. Sit in the front seat of the trainer... Its actually quite good, at least the view is better than from the back. Chang Haonan naturally remembered that more than two years ago, he got on the J-7 to see the airflow situation. Chang Jiayaos expression was complicated: Why do you say it as if you have sat on it... "I" Chang Haonan originally wanted to blurt out that I had actually sat there, but this seemed to have no use other than frightening the old father next to him, so he simply stopped arguing and directly made a decisive move: Forget it, how are your grades? "I" ?This time it was Chang Jiayao''s turn to look blank. Actually, her grades are pretty good. But its a bit uncomfortable to always be dominated by your friends. Secondly, any student, no matter how good or bad he studies, is actually not willing to talk about this topic. Anywaythe result in the aviation experience class was the first. Obviously, her weakness is in cultural classes, so she just avoids the important and takes the easy way out. After finishing speaking, I did not forget to emphasize: He is number one among all pilot students in his class, regardless of gender. Thats okay, its not a disgrace to the family ?Chang Haonan nodded happily, but then changed the subject: It cant be Instructor Zhang ?Chang Haonan specifically asked before leaving the aviation school last time, at least not to show favoritism in terms of grades. But I am always a little worried about whether something will go wrong. Chang Jiayao knew that Chang Haonan must have known Zhang Jiujiang, but she didnt know how exactly. She just assumed that her elder brother didnt believe in her academic level, and immediately looked fierce: "How is it possible? My sister, I am so unwilling to let my brother rest assured?" ??If Lin Daiyu were to say this, her tea skills would be immediately overwhelming, but Chang Jiayao has developed a tomboy style in the military academy, so she definitely doesn''t have that taste anymore. Chang Haonan saw that Chang Jiayao''s fluent answers were normal, so he knew that this was not the case, and he immediately breathed a sigh of relief: Its better if you dont have it "but" Speaking of this, Chang Jiayao softened the "ferocious" expression she had just deliberately put on, and at the same time changed her tone: "Instructor Zhang really takes good care of me. Sometimes he will tutor me after class in the cultural class. He will also take me to practice more in the physical class, as well as my daily routine... He can''t control this, but how often does the life teacher check our bedtime? Its several times that of other dormitories, and I estimate that 80% of them were also ordered by him. To be honest, our female students are not so strict in their daily lives, but I just...one time I went to bed a little late at night, and I didnt want to practice extra the next day, so I was scolded by him..." This was actually Chang Haonan''s request, but if he said it directly it might affect the relationship between the brother and sister, so he said with a normal face: Isnt it a good thing to have strict requirements on you? "I know it''s a good thing, so what I just said was that instructor Zhang took care of me, not that he was targeting me." Chang Jiayao nodded: But there has to be a reason for special treatment, right? I think the relationship between you and Instructor Zhang is more than just acquaintance. At this time, Chang Haonan was in the car and could talk a little more. ?Of course, things like Project 9910 and Turbofan 10 are indeed confidential, and no one in the family can talk about it. ?However, other things can still be revealed to some extent: Has your aviation school recently acquired a new batch of aircraft? Chang Jiayao was stunned for a moment, then continued to nod: There is such a thing, but it is a matter for the advanced student class. We will have to wait for another two years before we can fly on the advanced training aircraft. That plane was designed by me. "ah?" (End of this chapter) Chapter 663 You can watch the military parade live Chapter 663: You can watch the military parade live Not only Chang Jiayao, but also Chang Yuanchao, who was silent next to him and just listened to a pair of children chatting and amusingly, didn''t tense up and sat up straight immediately. Fortunately, the Crown''s back seat space is quite good, otherwise I would have hit my head. ??The movement was a bit loud now, and even Zhou Li, who had been sleeping next to her, woke up, but she was still confused and didn''t know what happened. Both of them are laymen in the field of aircraft design. Even Chang Jiayao may not be able to tell the difference between the chief designer, chief engineer and various subsystem designers, let alone Chang Yuanchao, who is a policeman. . In his concept, designing an airplane is basically like sitting in front of a table and drawing... So Chang Haonan said that he designs airplanes. In the eyes of his old father, he seems to be the one responsible for the main work. How to say it? ?Although the process is outrageous, the conclusion is really right. Chang Jiayao has already become a student pilot. Although she is still a junior student, she still knows a little about the equipment she will fly in the future. Im not telling you, I heard that those planes were produced by Guizhou Airlines. When have you been to Qian Province? ?Although she didn''t think Chang Haonan would talk nonsense about this kind of thing, after all, there were outsiders around. ??But I also feel that it is not consistent with the information I know... ?Chang Haonan suddenly felt that his sister knew a lot, so he continued to answer truthfully: Guihang is a small and remote factory in the aviation industry. It is somewhat difficult to handle such a complex aircraft design alone, so I was asked to serve as a foreign aid. Invite me all the way from the capital? ?Chang Jiayao didnt know for a moment whether she should believe it or not: Rongcheng and Haojing are closer, right? Chang Hao Nanxin said that Rongcheng and Haojing would have to invite me over, so of course it would be better to come to me directly. ??But this part of the content involves the J-10 and JH-7, and it is definitely not easy to say. So I had to change my explanation: "Of course it''s okay to hire people from Rongcheng and Haojing, but the tool used to design the aircraft, uh... you can think of it as a computer software, was developed by me, so it''s definitely better to find someone else than me. I happened to be free at that time. , just helping out." Fortunately, he has done enough things over the years, and it can be explained by just finding something. So thats it? Chang Jiayao reasoned based on common sense that it seemed a bit unreliable for a doctoral student who had not yet graduated to do such a big job. But this statement can indeed explain a lot of things. You can design a complete aircraft and it has already been put into use. It seems reasonable to equip it with a car and an entourage... ??And if this is true, then it seems that she will be able to fly a plane designed by her brother in a few years... ?Its quite exciting to think about it. ??Zhou Li, who finally woke up from her stupor, only listened to the second half of this conversation. Naturally, it was impossible to understand it completely, but she also roughly understood the core meaning, which should be that Chang Haonan is very powerful... ?If this issue continues to be entangled, it will involve parts that cannot be discussed in detail. Fortunately, at this time, the car had already arrived near Xidan. Okay, Tiananmen is coming soon, look quickly. ?Chang Haonan pointed out the window and decisively diverted the attention of the other people. ?At the same time, Zhu Yadan also gradually slowed down some speed. Its actually not much different from a normal street here during the day. Its better to come at night or in the morning. The museum, the General Assembly Hall and the Memorial Hall are all open. If you come here another day and watch the flag raising, you can go around together... Chang Haonan sat on the small bench in the back row and introduced the other three people who were curiously looking out the window. Although this was said, it was obviously different for people who were here for the first time, so Chang Jiayao still stared outside: Brother, have you visited all these places? "I" Chang Haonan studied at Beijing Airlines for eleven years in his last life, so he has naturally been there. But in this life, I have been running around since my junior year in college, so naturally I dont have that much free time: I havent been to several other places, but I have been to the Great Hall for a meeting. It was held in the Great Hall? Zhou Li and Chang Yuanchao looked at Chang Haonan again. In fact, the General Assembly Hall is a place that has been opened for commercial operation. As long as you spend money, you can basically hold meetings or have a meal there. But not everyone knew about this even more than 20 years later, let alone the 1990s. Especially the old couple who were born in the early years of the founding of the People''s Republic of China, have a somewhat reverent view of these important places in the capital. ?Chang Haonan can enter the Great Hall for a meeting. In their opinion, that is a more powerful thing than designing an airplane. Well... I received several awards here just last year. I still have the certificates at home. Ill show them to you when I get back. ??Although the National Science and Technology Progress Award is considered top-notch in the circle, it is not a big deal to people outside academia. As an award that is evaluated every year, or more than one, its social influence in general is not even as good as the May 4th Youth Medal that Chang Haonan won earlier. ??Moreover, the projects he won awards for were all secret and difficult to publicize, and he couldn''t elaborate on them over the phone. So after receiving the award and returning home, he only told his family vaguely. Now that I mentioned it again, the two people next to me remembered: The awards you told us about last year were...received in the Great Hall? ?Chang Yuanchao felt like he was drifting all over, as if he was dreaming: When you told me about it, I thought it was just a school award... ?Chang Haonan also had no choice but to hold up his forehead: Didnt we all say it at the time? Its called the National Science and Technology Progress Award. How could it be issued by the school But Chang Yuanchao also had reasons to say: You told us about the national scholarship before. Isnt that also awarded by the school? And you just mentioned a few words at that time, and we didnt expect such a big battle..." How to say It does make sense. ?Although Zhou Li is a high school teacher, she has never attended a serious university. The difference between middle school and university is really exaggerated, so it is normal not to know this. Not to mention Chang Yuanchao himself. Chang Haonan knew very well that he had never received a national scholarship in his entire life, and he had no memory of when such a thing was mentioned at home. I can only say that parents do remember a lot of things their children say inadvertently. ?While a few people were chatting, the car happened to drive to Tiananmen Square. It looks like the city gate tower is being renovated. I wonder if I can go up there in two days Chang Jiayao, who has sharp eyes, saw the scaffolding on the tower. Even if there is no renovation, the opening hours during the Spring Festival are very short, so it may not be possible to squeeze in... Chang Haonan also bent down and looked out through the gap: However, this year is the 50th anniversary celebration. There will be a celebration here, and my parents should be able to come and watch it... Of course, it will definitely not be on the city gate tower, but on the stands on both sides..." Project 9910 is a secret, but the National Day military parade itself is not. ?Although it has not been officially announced yet, the media has already begun to warm up for this event. Zhou Li and Chang Yuanchao were both speechless. But from the eyes and expressions at that moment, we can still see the surge of excitement and ecstasy. ?Both of them have watched the 35th anniversary military parade on TV, but they never imagined that one day they would be able to watch it live. ?At the moment, he didnt even mean to say a few routine words of refusal, he just kept nodding. Chang Jiayao was happy for a moment, but then she realized that Chang Haonan was talking about her parents being able to come, not even mentioning herself... Not later What about me? Brother, cant you forget me? Am I not your dearest sister? She turned around and looked at the happy family of three with loving parents and filial piety with trembling eyes. She just felt that she seemed a bit redundant in this car... The two people next to them finally recovered from the initial excitement and remembered that they had a daughter. Yes, Xiaonan, can you bring Jia Yao with you? If there are not enough places, the two of us... Zhou Li and Chang Yuanchao looked at each other. Obviously, both of them felt that if there were only two places, one should be given to their daughter. But the problem is that at this time, no one really wants to... After all, watching the military parade live is probably only once in a lifetime. "she" Chang Haonan and Zheng Liangqun had previously discussed the arrangements for the air review of Project 9910. In addition, the JJ-9 has been officially put into service, so he naturally knew that there would eventually be an echelon of training aircraft. ??Just now when he heard Chang Jiayao say that he got first place in the aviation experience class, he estimated that his sister would be included in the final flight formation. But this matter is definitely a secret that cannot be leaked, so I have no choice but to say: "After all, their schools are different. If she is free then, she can come if she wants to..." Chang Jiayao relied on her sister''s intuition and thought that Chang Haonan seemed to be hiding something from her. ?But anyway, I have been guaranteed, and I will no longer worry about it soon: The military academy is also a university. There is a holiday on October 1, so how could we not be free? Remember to leave a place for me when the time comes... Let my classmates be envious of me after I go back..." ?Chang Haonan didn''t know what to contact for a while. In the end, he just nodded and didnt reply. I have a bit of hypoglycemia today and I really cant write anymore. When I was walking to the dormitory just now, I almost fainted on the road. At that time, I began to summarize my short life in my mind... (End of this chapter) Chapter 664 The organization has made a decision and Chapter 664 The organization has been decided and is ready to take the initiative! ?It took me a while to go around Chang''an Avenue, but in the 1990s in Beijing, and it was still noon, it was not as congested as it would be in later generations. So, the family arrived home before lunch. Zhu Yadan had already arranged the pass the day before, so there was not much delay along the way. ??But its not difficult to see it after passing two checkpoints in a row. Brother ?Chang Jiayao looked through the rearview mirror at the gun-toting sentry that was gradually receding behind the car: Why does it feel like the place you live in has tighter security than our school? We are a deputy corps-level unit with only one sentry at the door, and the sentry is separated from the bullets..." ?Actually, Chang Yuanchao felt something was wrong just now, but he just kept it in and didn''t say anything. ?Now that Chang Jiayao asked this question, he followed up with the following sentence: Xiao Nan, I remember you said before that your school allocated you a house in a residential area. Have you moved it from the dormitory? ?When I called two days ago, Chang Haonan said that he had just moved. Considering that about a year ago, he also mentioned that the school allocated houses, Chang Yuanchao could only understand that his son had moved from the dormitory to a new community In the concept of a dual-income family like him and Zhou Li, it sometimes takes several years to allocate a house, even after waiting for the house to be built and getting the key, even after qualifying for a quota. Calculating the time, it seems to be about this time. On the other hand, Zhou Li next to her frowned: But it doesnt seem to be the location of their school... Will the family area study so far away from the school..." Chang Haonan has nothing to hide about this kind of thing, but it was just inconvenient to explain it on the phone before: No, the house assigned to me by the school was given by our dean who gave up his place, so it is an existing house and I have lived in it for two years. Ouch! Chang Yuanchaos eyes suddenly widened: Such a good leader is rare these days. You have to maintain it well and not make people feel left out. Its the holidays, just these few days...walk around more..." Yes, you told me this happened earlier. When I come here this time, I will bring some local products from my hometown..." ?Zhou Li also echoed beside her. Well...I think I maintain it pretty well. ?In fact, Tang Lintian has now been officially promoted to the executive vice president of Beijing Airlines. Chang Haonan has not seen him for a while. ??But considering that Beijing Airlines became one of the first 10 "985" universities and C10 alliance members last year, he felt that Dean Tang, no, President Tang should be quite happy... As for walking around during festivals and other festivals... Indeed there are. ??Its just that the active-passive relationship may be a little different from what the couple thought. Thats good, thats good Zhou Li had not yet realized the seriousness of the matter, and said with a pleased tone: We are both worried that you have been in school all the time and dont understand these things when you go out into society..." ?Zhu Yadan, who was driving next to him, almost laughed when he heard this. He suddenly remembered the first time she met Chang Haonan. It was the time I went to Jiangcheng Heavy Machine Tool Factory for a mission. ?Of course there are also a series of details observed in daily life. For example, the relationship between Chang Haonan, Ding Gaoheng and others. In general, although he cannot be regarded as a scheming person, he is definitely not a novice. At least the language arts area is full. ?Of course, in most cases, there is no need for him to show his ability in this area. It can only be said that the child in the eyes of parents is never the same person as the actual situation. There was no words to say all the way, Until the car stopped steadily near Chang Haonan''s new residence. After getting out of the car, the first reaction of the old couple and Chang Jiayao was to look around. But the vegetation around this place is good, and at a glance, there is no residential area at all. There is only a row of two-story western-style buildings in front of us. The front is divided into several courtyards, indicating that the entire building should belong to several families. ?This style of house is not uncommon in rural areas or county suburbs. ??Living conditions have gotten better and better in recent years, and many people are building multi-story buildings like this. But this is the capital... Let alone the capital city, even in Liucheng, if you want to buy such a house, you will probably have to... I really dont know how much it costs. But it will definitely be expensive. Chang Haonan, who got out of the car behind him, had already started to get his luggage from the trunk. Lets go, its just across the road. He picked up two large bags, but because his hands were occupied, he had no choice but to raise his chin towards his home position. This is indeed a bit beyond the imagination of three people. Fortunately, its not so frightened that I cant walk. ?It''s just that when Chang Haonan took the key and opened the door, he felt a little bit as restrained as Grandma Liu did after entering the Grand View Garden. "This house... must be quite expensive, right?" Chang Jiayao looked at the living room, which was elegantly and simply decorated but not shabby. Her voice was much quieter than before. This...is also given by your school? Zhou Li was still standing at the door with Chang Yuanchao. She didn''t dare to go in for a while, she just felt a little dizzy. Even though she knew that there was a big difference between college and high school, this was too much. It doesnt seem right. Its definitely expensive, but I dont know exactly how expensive it is. ?Chang Haonan placed the other two pairs of slippers that he had prepared long ago at the door: This house is not mine in principle, it is just approved by the organization for me to live in. Hearing what he said, the two of them relaxed a little. ?Originally, according to the normal plot development, Chang Haonan was going to simply gather things and then reveal his only public identity, that is, the general manager of Torch Group. ?Then lets exaggerate a little bit about the high status of this position, and rationalize the behavior of organizing myself to have a villa to live in. ?Let this matter be over. ??But what they didnt expect was that Zhou Li and Chang Yuanchao stopped asking after hearing him say that the house was issued by the organization. What the two of them were worried about before was simply that their son would be tempted to go astray. However, compared with what Chang Haonan showed before - tens of thousands of dollars to buy a house in the county, a car with an entourage, and a guarantee that they could go to the capital to watch the military parade, this was tangible and tangible. The room above is really shocking. ?Even if you really go astray, Im afraid its impossible to make it out in such a short period of time. So, no matter how late the couple may be, they almost feel that Chang Haonan must have made some special contribution to the country. ?Thinking of this, the worries and uneasiness in my heart naturally disappeared, and the joy that had just been deliberately suppressed finally took over. As a parent, once you reach this happy moment, all you think about is... Xiaonan Zhou Li put on her slippers and placed the large and small bags she was carrying on the wall of the living room: You now have a house and your career seems to be doing well. When will you consider finding a partner? ?Over there, Chang Haonan had just taken off his coat, and his mind was rapidly thinking about how to explain Torch Group''s business and its importance to the country in simple and easy-to-understand terms. As a result, I directly heard such a completely unexpected question. The whole person was stunned on the spot for several seconds. ?But it makes sense when you think about it. Even Ding Gaoheng had come to the government to urge the marriage before. How could a parent not be in a hurry? People in this era are starting families relatively early. Although they dont get married as soon as they reach adulthood like in the old society, Chang Haonans age of twenty-four or five is definitely the right time. Well...its not urgent yet. He could only wave his hand: I havent graduated with my Ph.D. yet, so my career has just started. Lets wait until it stabilizes in a few years. This reason is definitely useful at home. After all, he relied on this rhetoric to delay him for several years in his last life... Sure enough, after hearing Chang Haonan''s answer, although Zhou Li obviously wanted to say something more, she finally changed the subject: Thats fine, Im still a few years away from retirement anyway. If you really have a child now, who will take care of it is still a problem... Good guy. Chang Haonan had reason to suspect that his mother had probably already thought of the name of her grandson or granddaughter, but she just hadn''t told him yet. But no matter what, this wave in front of us has passed. ?Including Chang Jiayao, who had just heard that he was being urged to marry and hid in the bathroom, now also moved out of it step by step - She has just turned 20, and its almost time... "elder brother" Chang Jiayao''s thinking is definitely different from that of her elders. She is still interested in this house and what Chang Haonan is doing. ?But just as she opened her mouth to call someone, she was interrupted by a ringing sound from the second floor. Wait a minute, I have to go up and take a call. After saying that, he got up and quickly went upstairs. ??The villa''s external telephone is next to the sofa on the first floor. In his bedroom on the second floor was the red intercom phone. He had just moved here less than three days ago, and not many people knew the villas internal number. So, there must be something urgent. The phone is not at Chang Jiayao frowned as she looked at the white telephone in front of her and Chang Haonan''s back. She has also realized it. ?There are some things that you may not be able to ask. At the same time, Chang Haonan, who had already reached the second floor, took a look at the caller ID. The landline phone in Ding Gaoheng''s office. He couldn''t help but take a deep breath: Hello, Director Ding, Im Chang Haonan. Xiao Chang. Ding Gaohengs trembling voice came from the other end of the phone, as if he was suppressing his excitement: The superiors have approved in principle the idea of ??proactively carrying out limited operations in the Balkans that you proposed yesterday, but we need to know more detailed information. "In particular, you proposed that the old radar can be upgraded to a passive positioning radar by replacing a few core components without changing the antenna. Is this number of components that need to be replaced safer for smuggling? " (End of this chapter) Chapter 665 Modern warfare is artillery battle! Chapter 665 Modern war is artillery war! It is actually normal for superiors to have concerns in this regard. In fact, the passive positioning radar deployed on land is not necessarily a high-end product in itself. ?For example, the 70M6 "Volga" early warning radar has a passive detection function and can even be considered a model close to shelf products. But in the past, the common function of such things was to provide mid-range early warning of ballistic missiles, anti-stealth and anti-radiation, which could only be said to be secondary functions. ?Not only will the software system not be optimized in this direction, but corresponding tactics have not been considered for the hardware. Therefore, in order to ensure the detection distance and extend the reaction time of one''s own nuclear counterattack, a radar antenna is generally deployed permanently like a building or even a hillside. Hong Kong has also researched similar early warning equipment in the past, and the sizes are basically similar. ?It is indeed extremely difficult to "smuggle" something of this size to another country without crossing a third country. Therefore, when people of this generation first heard that Chang Haonan wanted to change an ordinary vehicle-mounted fixed radar into a passive positioning radar, their first reaction was definitely confused. ??It is also natural to subconsciously think that this may be a project with a very heavy workload. ?However, the focus of the algorithm developed by Chang Haonan was "multi-point distribution". If you want to achieve passive positioning with a single array, you will naturally need a huge size to calculate a sufficiently accurate angle difference. But because the whole idea was originally intended to be used on an aircraft and two missiles, after transplanting it to the ground, the signal source and at least two receiving sources can be completely separated. ?This is why he and the 14th Institute of Electronic Science and Technology chose the P18 radar, which is not familiar to China, as the target of transformation. This type of early warning radar is extremely common in the countries of the original Warsaw Pact camp. Even more than 20 years later, you can easily take out a lot of them, and even out a few of them and modify them into passive radars, which will not affect the early The early warning capability will not produce too eye-catching movements. ?Therefore, faced with Ding Gaoheng''s question, Chang Haonan looked outside and after confirming that his family was not nearby, he answered: The specific hardware operations related to radar modification are carried out by the 14th Institute of Electrical Engineering, so if you need to compile a specific transportation list for Lao Wu, you have to contact them. "But from the perspective of the basic algorithms and signal processing principles that I am responsible for, since it basically does not involve changes to the antenna itself, the total components required to improve the two radars are mainly the feed and filtering equipment at the back end of the antenna, as well as the output end Digital signal processing chips such as DSP and FPGA required for data processing. "There are indeed a large number of components such as chips and circuit boards, but they can be shipped directly in the name of personal computer accessories, even with great fanfare. After all, it is not easy to distinguish these components without taking them apart and inspecting them one by one. The difference between military-spec chips and desktop products. The main thing that is more troublesome is those analog signal processing and conversion things. Because they are relatively large, if a knowledgeable person can see them at a glance, you need to be particularly careful..." Need to modify two radars? The questions on the other end of the phone were obviously more in-depth and detailed. At least two, actually preferably three. For Chang Haonan, these technical route questions have been repeated countless times in his mind, and he can naturally answer them fluently: "However, one of them only needs to transmit signals as usual. The improvement is very small. At least two of them need to be changed to passive radars. Only by forming these three radars with exactly the same antenna parameters into a whole and then deploying them dispersedly can this be achieved. Signal detection in various environments. "Of course, if there is a relatively strong and stable signal source within the airspace itself, such as a relatively close early warning aircraft or a naval ship with regional air defense capabilities, then it does not matter if there is one less radar that actively transmits signals. After all, this radar It is very dangerous in itself and is likely to be destroyed by the opponent''s air defense suppression operations. " "The reason why I suggest retaining it is because I am worried that the other party will adopt stricter electromagnetic signal discipline. After all, the party we want to help does not have a strong air force or long-range strike force, so the opponent does not necessarily need to maintain a high level of electromagnetic signal discipline all the time. Air warning level..." After all, it was a confidential insider only for high-level leaders, and he had already communicated with the other party before, so Chang Haonan did not go through all the twists and turns and directly analyzed the actual situation of both parties in the conflict. His suggestions are naturally not just speculations, but have been verified by "future history". Throughout the entire Allied operation, due to the relatively complex ground environment and proper preparations for electromagnetic countermeasures, the efficiency of the coalition''s air defense suppression operations was extremely low, and the defending side''s radar could remain switched on for a long time even until the middle and late stages of the conflict. without being destroyed. ?In this context, deploying an additional controllable friendly signal source is basically a matter of no harm. Then I know Ding Gaoheng replied in a "That''s it" tone. In fact, according to Chang Haonans understanding of him, the step of communicating on the phone should end here. But today, Ding Gaoheng seems to be particularly interested: Also, Xiao Chang, I remember you said two days ago that in addition to detecting invisible targets, you can also directly shoot them down? Well at least give it a try. Chang Haonan naturally has this idea, but the stealth fighter has never been successful, and his set of things has not even been tested, so it is definitely not easy to say too harshly: "In my work over the past few years, I have found that many people, even comrades in the aviation industry system, deify stealth aircraft and even fear difficulties. In fact, our opponents often think so too. It has even become part of their strategic intimidation. "If we can take advantage of this opportunity to get some kills or even injuries before they become more vigilant about anti-stealth methods, I think it will be a huge positive incentive for the perception and confidence of our entire society. " Ding Gaoheng seemed to be shocked by Chang Haonan''s stern statement. He waited for almost half a minute before replying: "However, the nature of electromagnetic waves of long-range warning radar determines that whether it is signal accuracy or data update frequency, it is unlikely to support terminal attacks by air defense weapons. If you really want to achieve a shootdown, you will need a hard-kill method. " Or are you planning to smuggle in the new missile developed by the Institute of Aerospace Technology? ?This question stunned Chang Haonan. ?Of course I didnt ask him to stop him. But as a leader with a background in technology and guidance and navigation technology, Ding Gaoheng has almost never asked such detailed tactical questions in the past. ?However, he quickly came to his senses: Missiles are certainly inconvenient to smuggle. "First of all, the nature of this thing is different from radar components and self-defense interference systems. In any case, it is a serious weapon and equipment. We still have to be just in case. It would be really bad if we were stopped on the road. explain." Secondly, even if we dont consider the risks, that model is still in the development stage, and even the prototype bomb has just been built. After all, missiles are pyrotechnics and different from radars. It is absolutely impossible to use them without test firing..." After hearing that Chang Haonan was not planning to send out the missiles as well, Ding Gaoheng seemed to be relieved: Then what do you think For Chang Haonan, this is completely a score-earning question: "They should have a lot of S125 "Pechora" air defense missile systems themselves. The most important thing about stealth aircraft is its suddenness. If the early warning radar can continue to effectively detect the target, even if it cannot lock, it can also let the fire control radar of the air defense missile To indicate the direction, as long as you grab the opponent''s aircraft and open the magazine, or turn at a large angle, the time window increased by RCS is still enough to complete a shot. " "Taking a step back, even if the opponent uses electromagnetic interference to invalidate the missile''s command guidance, we can still return to the most primitive method, through voice reporting and manual work, and try our luck with large and medium-caliber anti-aircraft artillery. Anyway, we are ahead Its not like I havent considered similar tactics in recent years Modern warfare is artillery warfareanything that can pull out pus is a good ointment, not a shabby one. At the end of the sentence, he even had a bit of a joking tone: Rather, if the stealth fighter is really shot down by anti-aircraft artillery, it will be embarrassing all over the world..." After Operation Desert Storm, China, which was frightened by the coalition''s electronic warfare, realized that the existing old-fashioned anti-aircraft missiles were probably not much different from fire sticks, so it rushed to import S300 anti-aircraft missiles and dragged out several more divisions of them. 100mm and 57mm large and medium caliber anti-aircraft guns emergency. ? Among them, the 57mm anti-aircraft gun was finally used until about 2018 before it completely bid farewell to the stage of history. Back to basics, this kind of thing is the least affected by electronic interference. ?Of course, it will definitely not be used in the end. ?However, the ideas can still be used for reference... (End of this chapter) Chapter 666 1999, not a peaceful start (a new month, please vote for me) Chapter 666: 1999, not a peaceful start (its a new month, please vote for me~) ?Although the next few questions Ding Gaoheng asked were really strange, the content was not too complicated. They were basically things that Chang Haonan had already thought about. So they didnt chat for too long, and the two ended the conversation. Alas...what a troubled time it has been. ?Chang Haonan looked through the window of his bedroom on the second floor and looked at the streets in the distance that were decorated with lights and colorful decorations and decorated like a Spring Festival atmosphere, and felt a little emotional in his heart. Although China in this era is generally in a weak state under pressure from all sides, it is still a nuclear power after all. For ordinary people, no matter rich or poor, they can always live a stable life. But not every country is so lucky. ?Just like what he just mentioned on the phone... ?He put down the receiver, calmed down for a while, and then left the bedroom. ?But when he returned to the living room on the first floor, he only saw Chang Jiayao sitting on the sofa watching TV. ??It only took 20 minutes to make a phone call. Why did the old couple disappear? Jia Yao, where are your parents? Chang Haonan asked as he went downstairs. Dad is looking at your garden outside. Im probably studying whether I can grow some vegetables or something. Chang Jiayao crossed her legs on the sofa and held a cushion in her arms. At this time, I had just finished eating a handful of melon seeds. I looked at my brother who was walking over, then lowered his head and looked at the palm of his hand. After hesitating for a moment, he still stretched out his hand with a look of pain on his face: You either? ??A few years ago, Chang Haonan would have been rude. But now we still need to keep our focus, so we shook our heads: Forget it, you can eat it. Chang Jiayao was beaming with joy. Judging from her appearance, she probably wasnt prepared to give it to her from the beginning. And you havent finished what you just said. ?Chang Haonan sat next to his sister, took the remote control from the latter''s hand, and switched directly to the news channel. "oh." Chang Jiayao just stuffed a handful of melon seeds into her mouth, so her speech was still a bit unclear: Mom felt that the house seemed empty and there was no feeling of celebrating the New Year at all, so I just asked Sister Yadan where she could buy New Years goods nearby and went out to buy some things. Chang Haonan brought another cushion over and held it cross-legged in his arms like Chang Jiayao, but his body was much less flexible, so he didn''t move as freely as Chang Jiayao: Speak of this. Even though he had just started speaking, there was already a hint of smile in his tone: When we were at the airport just now, my mother probably recognized Yadan as a man when she first saw him. Whats the point? It would be strange if I could recognize it immediately at first sight. ?Chang Jiayao knew the real situation of Zhu Yadan, but she didn''t have time to tell her parents before. Thats not the point Chang Haonan waved his hand: The point is, the look in my eyes when I looked at my mother was a bit like she was looking for a son-in-law..." Cough cough cough Chang Jiayao almost coughed up the melon seeds she just ate... At the same time, in the Office of the Director of the Commission of Science, Technology and Industry for National Defense. Ding Gaoheng, who had also just put down the phone receiver, turned his chair and looked at another soldier with the same rank as him who was sitting next to him. Compared to Ding Gaoheng, who has an elegant temperament and looks more like a scholar, this image is obviously more in line with people''s perception of a veteran. The former also had several notes on hand with a series of questions written on them. ?If you look carefully, it is the last few people I asked on the phone just now. Obviously, this conversation was similar to the one Du Yishan called Chang Haonan at the Science and Industry Committee more than two years ago. Only this time, Ding Gaoheng became the "mouth substitute" who was responsible for the dialogue on the surface. Old Fu, whats up, I didnt bluff you, did I? ??As he spoke, he leaned back on his chair, took out the cigarette case from his pocket, pulled out two cigarettes, and threw one of them to the other party: Do you think Xiao Changs idea is tactically feasible? Fu Youquan, known as Lao Fu, took the cigarette into his hand, took out his lighter and lit it: In war under high-tech conditions, tactics must ultimately rely on technology. Fu Youquan replied: If you can guarantee that what he said is that the idea of ??improving the passive positioning radar based on the P18 radar for anti-stealth is technically feasible..." ??Although Ding Gaoheng just took out two cigarettes, he did not light his own. He just smelled it and clamped it to his ears. Hearing this, he raised his hand and interrupted the other party: To be honest, our country only has P18 radar samples obtained from Eastern Europe in the past, and there is no model that is actually put into use, so there is no way to test the hardware domestically, and there is definitely no way to guarantee this. However, the idea given by Xiao Chang, I am willing to believe in its feasibility from a personal perspective and from the perspective of the Science and Technology Commission. Furthermore, as he just said on the phone, and as I told you before, our channels overlap with those of the Russians. As long as we are careful, even the person receiving the message will not know who we are. "If the thing succeeds, we will keep the documents here anyway, and we will claim them when we are no longer afraid of the Americans. If the thing does not succeed, it has nothing to do with us. It was all done by the Russians. Anyway, we will lose two machines. For radar components, with our current budget level, we can still afford this price..." Obviously, Ding Gaoheng''s ideas are more complete than Chang Haonan''s when it comes to preparing for backup. In other words, the heart is darker. Fu Quanyou stared at the opposite side for a while, then nodded: "I have heard a lot about this young comrade''s ability in the General Staff. During the dike-building operation the year before last, he was mentioned in the post-war summary statement submitted by the navy and air force, saying that he was the core of mission dependence. The equipment is all made by him..." After saying this, he was silent for a while, put the cigarette in his mouth and took a deep puff, as if he had made some very important decision: In this case, I agree to sign the back of your report! Thats right Ding Gaohengs serious face just now suddenly showed a smile: For some things, you still need to be more courageous... ?As the leader in charge of the development of science and technology, although he is not unable to make suggestions in aspects related to combat, his persuasiveness and voice are still not strong enough. Moreover, if a person directly comes forward, it is suspected of fighting for power and gain. ??But if we can also win over Fu Quanyou, who is the general manager, we will kill two birds with one stone, and there will be no worries in these two aspects. Ive been hesitant about this before, and its not just a matter of courage Fu Quanyou has a military style after all. After making the decision, he no longer hesitated and explained straightforwardly: The main thing is that the idea proposed by this young comrade really doesnt seem to be a temporary idea. Im afraid it has been planned in private for some time. If nothing else, I remember you mentioned a device specifically designed to interfere with GPS-guided weapons. What is it called...what..." Soft-kill self-defense countermeasure system. Ding Gaoheng has already memorized this name. Yes, thats it. Fu Quanyou nodded and continued: At the time, I thought it was just a precaution, but now it seems like its a cover to expand the scope of the conflict to prevent the other party from suffering losses and getting angry When he said this, Ding Gaoheng across from him suddenly felt... It seems to make sense. ?The office fell into silence. "well" What a troubled time This update is from yesterday. Since today is a new month, it has been moved to 0 o''clock. Please vote for me~ (End of this chapter) Chapter 667 Chang Haonans recruitment Chapter 667 Chang Haonans Advancement No matter what, the New Year will definitely pass. In the next few days, Chang Haonan took a very "thorough" rest. ? Putting work aside, even the red phone in the bedroom very wisely stopped ringing, leaving him in a state of silence for several days. You can spend some time with your family. And took a day to bring some gifts to visit Ding Gaoheng and Du Yishan. Especially the latter. ? In the past year or so, Chang Haonan has spent more than half of his time on business trips to different places across the country. Even during the few times he was in the capital, he basically stayed at the Torch Group instead of Beijing Hang University. Naturally, he had no chance to meet with his mentor. In fact, at the beginning, the reason why Du Yishan "robbed" Chang Haonan from Liu Hongbo was mainly because he felt that the latter needed a larger platform to display his talents. As an academician of both academies, the various resources that Du Yishan can provide are not comparable to those of Liu Hongbo, an ordinary young professor. Its just that the plan is wonderful, but it cannot keep up with the changes in the actual situation The disciple is really a little too ambitious. Commission of Science, Technology and Industry for National Defense, National Science and Technology Commission, General Armament Department, Chinese Academy of Sciences ??Although he hasnt received any particularly formal title because he didnt graduate, Chang Haonans connections already exist in departments related to scientific research. By the time he graduates from the undergraduate program and enrolls as a doctoral student, there is almost no need for him as a teacher to provide any resources. ?Du Yishan was happy to have his leisure time and directly acted as a hands-off shopkeeper, only acting as a ruthless signature machine when necessary. However, for Chang Haonan, the etiquette is still indispensable. Since everyone is here, its natural to stay and have a meal. When we sent you and Xiao Yao to participate in the August 3rd Project, we originally had the idea of ??cultivating future aviation industry talents in advance and letting Lao Yang show you the world. Du Yishan rolled a plate of sliced ??mutton into the steaming copper pot and said to Chang Haonan who was cutting tofu with a knife in his hand: Who would have thought that the future talents of the aviation industry have indeed been trained, but they are not training you, but you are training others, and by the way, you have brought Lao Yang and others to see the world..." The Lao Yang mentioned by the former is naturally Yang Fenghata, the chief designer of the 83rd Project. Thats not entirely true. Chang Haonan put the tofu cut into pieces on a plate, and then mixed hot pot dipping sauce for Du Yishan and himself: That time I went to Shengjing, Mr. Yang really helped me gain a lot of experience. In the past, no matter how good we were at learning knowledge and no matter how slippery we were at designing, we could only do it on paper. Project 83 was the first time that my senior sister and I were really exposed to the complete aircraft design process. If it hadnt been for this opportunity, Im afraid my potential wouldnt have been unleashed so quickly ?His answer is absolutely sincere. After all, the system initially provided a total of 10 scientific research points as funding to start. ??He also used up more than half of it for course design. ??If I hadnt gained a lot of points and experience while participating in the 83rd Project, I would have definitely missed many opportunities in the future. The most direct one is the cooperation with Europe in early 1997. Without the anti-icing technology provided by Chang Haonan as a bargaining chip, even if it finally succeeded, it would be impossible to obtain such unfavorable conditions as mutual recognition of regional aircraft airworthiness certification. ??Another example is when developing the TORC Multiphysics software, it is impossible to directly use ten times the points to get the result, and the development pace of Torch Group will definitely slow down. ?It is even less possible to further expand cooperation with the EU, dig holes for Japanese companies, and expose their systemic fraud... In short, these are all linked together. ?Du Yishan just smiled and did not continue to dwell on this topic. Instead, he changed the topic and asked: According to the two-year training plan, you will graduate this summer. What are your plans after that? I have been thinking about setting up a joint laboratory with Beijing Airlines in the name of Torch Group, and I should choose to stay in school and serve as the laboratory director. ?Chang Haonan has told Yao Mengna about this matter before, and naturally there will be no change now: But the file should be uploaded to the Torch Group, otherwise the leader of my group will always be a part-time contractor, which is a bit awkward..." While the two of them were saying these words, the mutton in the hot pot was already cooked. Du Yishan first gave Chang Haonan a chopstick and affirmed at the same time: Well, its right to focus on the company. With the current influence and development momentum of Torch Group, it is impossible to remain a second-level state-owned enterprise affiliated with the Academy of Sciences. It will be a matter of time before it is upgraded to a state-owned enterprise directly under the central government. The room for improvement is much greater than in school. ?This statement was a bit beyond Chang Haonans expectations: I have no plans to expand the scale of Torch Group in the short term. If it is upgraded to a centrally-controlled enterprise... wouldnt it be a bit too small? Du Yishan shook his head: This thing is not about scale, but mainly about level. When the Torch Group can be upgraded depends on when you can be promoted to the top level of the corresponding central unit. "In the past, before the de-administration of state-owned enterprises, there was a hard age threshold for this, and you had to live for a long time. But now... because corporate managers theoretically do not have administrative levels, they only receive public service benefits, so they use Not a few years. After finishing speaking, he swallowed the mutton in his mouth, paused for a moment and then added: I guess I should decide whether to become an academician or not Chang Haonan doesnt feel sleepy anymore when talking about this topic. He is not a saint. Just because he is not interested in money does not mean he is not interested in other things either. The title of academician is very attractive. Of course, it must be more subtle and not too naked: "Being an academician sometimes depends on luck..." As a result, Du Yishan, who was serving the second plate of meat, sneered: "Normally speaking, it does have something to do with luck, but if you still rely on luck in this situation, you would be looking down on me, Lao Ding, Lao Song, Lao Liu and the rest of us. And when it comes time to nominate you, there will probably be more Several old academicians also want to sign..." Chang Haonan thought about it and felt that if the names of these senior academicians were listed together, they would indeed have a hundred million points of weight... And Du Yishan continues: "Of course, this thing also depends on the timing. It is best to wait until a key project you are chairing is launched that year or the following year. There are still places. If the academicians of the Department of Mechanical and Vehicle Engineering have been in better health in the past two years, there is no Those who have passed away will have to wait..." In short, although it was just a casual chat, it really made Chang Haonan look forward to it. In this way, New Years Eve arrived soon. ?After taking over Chang Yuanchao and Zhou Li, the most obvious change is that this house finally has a bit of a "home" feel. In the past, whether it was the unit building next to the school or this townhouse, it was more like a dormitory... He didn''t even start the cooking. In fact, strictly speaking, the Spring Festival holiday has always been excluded from New Years Eve. ? Its just that there is nothing to strengthen the sense of service in this era. Except for a few indispensable places, most units turn a blind eye around the New Years Eve. ?Early in the morning, father and son Chang Yuanchao and Chang Haonan were rushed outside to post Spring Festival couplets and hang lanterns. Zhou Li and Chang Jiayao began to prepare various raw materials for the New Year''s Eve dinner. By the way, Xiaonan. ?Chang Yuanchao got down from the stool, walked a few steps further, and after making sure that the angle of the couplet he posted was OK, he came to Chang Haonan again: "As you said before, you gave up your housing quota to your dean. You should go out and walk around during the New Year, right?" "Um" Chang Haonan had just hung up the lantern and was about to try to see if it could light up normally. He turned around after hearing his father''s question: It depends on the situation, if nothing unexpected happens He was only halfway through saying this when he saw a small car approaching from a distance and slowly stopping at the door. A strange yet familiar figure emerged from the driver''s seat. Looking carefully, it was Tang Lintian. Say Cao Cao Cao Cao has arrived... ??What Chang Haonan wanted to say just now was "if nothing happens, he will come over." Now even the second half of the sentence is omitted. Happy New Year, Xiao Chang! ??Tang Lintian took out a few gift boxes from the back seat of the car and handed them to Chang Haonan: By the way, congratulations on moving to your new home! ?Beijing Airlines can now be rated as the first batch of 985 project construction schools. Not to mention all, at least 60-70 achievements belong to Chang Haonan. ??Tang Lintian now wants to support him, fearing that he will run away immediately after graduation. Principal Tang, youre welcome. Chang Haonan took a brief look at it, and after confirming that there was nothing that would cause a mistake, he took it from the other party: Im here just in time, why dont you come in and have a seat and have a sip of tea? ?Tang Lintian waved his hand: Forget it, just go in, Im just on my way out to do some errands, my family is still waiting, lets wait another day ?This statement is obviously an excuse. Is there anything else that needs to be done in a place like this on New Years Eve? Obviously he came here on a special trip. As for why you didnt come earlier I guess I just learned about his move. The person just now was Looking at Chang Haonan returning with something in his hand, Chang Yuanchao was a little unsure of the identity of the person who had just arrived. After all, the other person looks to be about the same age as him, so he should obviously be an elder. But the relationship between the two seems to be... At this time, Zhou Li, who had been busy in the kitchen before, also came to the entrance. Well, thats what you just said, our Dean Tang. ?Chang Haonan handed several gift boxes to the old couple and motioned for them to take them in. Then he stood on the stool again and prepared to hang another lantern: But it should be Principal Tang now. ? One sentence put the two people at the door in a panic. Happy Chinese New Year. ?The principal brought something and visited the students homes? (End of this chapter) Chapter 668 Thousands of lights Chapter 668: Thousands of Lights ?It would be more troublesome to explain this matter in detail. Fortunately, Chang Haonan had prepared a set of rhetoric about the great influence of the Torch Group. It was originally intended to explain how various benefits, including this house, came about. ??Its just that I was interrupted from casting the spell at that time, so I didnt say it out loud. It just comes in handy now. Didnt I say before that I am still in charge of a company and have always had some cooperative relations with the school. ?Chang Haonan climbed up on the stool lightly and skillfully, and said while hanging another lantern on the edge of the door: For example, in June last year, Beijing Airlines was selected into the first batch of ten 985 project universities. The evaluation criteria include the schools scientific research results, social influence, and the amount of scientific research funds. "It just so happens that our Torch Group has sponsored many projects in the school in the past two years, and I personally handled many of them. It has helped a lot in terms of results, influence, and funding, so... the school leaders have a good relationship with me. " ?Just like this villa, the things Chang Haonan talked about have exceeded the cognitive level of ordinary employees in the two counties, Chang Yuanchao and Zhou Li. So at the moment, I could only nod in confusion. ?However, judging from the common sense of human relations, the other party specially came to visit me on this day. I am afraid that the level of "okay" is a bit high. After entering the door, Zhou Li quickly lowered her head and checked the things in her hands. Basically some canned drinks, cakes and the like, and two bottles of red wine, okay... When she said "not bad", she certainly didn''t mean to dislike the cheapness of things, but was worried that they were too expensive. ??If it were just a few bags of cash or something, I would be in big trouble. Now I finally feel relieved. "Sigh... I''d say you are the same. Your son is now successful, so you should be happy. Why are you so worried..." Having been an old couple for decades, Chang Yuanchao could naturally guess what the latter was going through just now, so he walked into the house while complaining. Zhou Li kept moving her hands and refused to admit defeat at all. She immediately said: Youre still talking about me, I dont know who was worried about Xiaonan not being able to resist temptation at the beginning Chang Yuan shrank his head, and his momentum immediately weakened a lot: "I... I have a purely occupational disease. I have been a policeman for a long time, and I subconsciously think more about everything I see... I just said casually that day, who can remember it until now..." ??Zhou Li turned around and glared at Chang Yuanchao, but her tone softened and she said seriously: "Actually... I''m not that worried. I understand Xiaonan''s character, but I just feel... it''s a bit unreal..." The main thing is, how could we have imagined before that our son has only been in college for... lets say six years, and he has already developed to this extent in the capital..." Seeing this, the latter nodded: "That is to say, among the people we know around us in the past few years, there have been a few children who have been admitted to college, but their development has been quite satisfactory... To be honest, in the past few years, we often talked about children''s problems when we got together. , now neither they nor I rarely discuss this topic..." When Chang Haonan went home for the first time to bring gifts to the old couple, Chang Yuanchao wanted to wear the new watch in the most conspicuous position so that others would notice it, and then started talking about Chang Haonan. But since I bought a new house in the county and moved, I think about it less often. ?However, Chang Yuanchao is still very good at self-education, and he followed up with another sentence: However, if you think about it carefully, there are quite a few things that make people feel unreal in recent years. Even so far away, we never thought that Jia Yao would actually become a pilot "There is also Lao He. He was laid off the year before last, and his wife also went south with others. But he just gritted his teeth and asked a few people to contract the factory. Now he has moved to the city with his daughter... " Lao He said he had a junior high school degree, but in fact he didnt even finish elementary school seriously. He can still start a business and make a lot of money. No matter how you say it, Xiaonan is a doctor ?Zhou Li originally hoped that her son would be well, but it was a bit unfounded when Chang Yuanchao talked about it in the wind a few days ago. ?Now that I was persuaded like this, I stopped worrying about it at all. I immediately put the dough in my hand into the basin with a "snap" and woke up, then covered it with a cloth curtain and hummed a ditty in my mouth. ?At this time, Chang Haonan finished his work outside and pushed the door open while patting the dust on his hands. Then, a rag was stuffed into his hand: Go and clean the chandelier on the top of the living room and the tops of the cabinets next to it. I looked on the second floor before and they were all dusty ?Chang Haonan inexplicably felt that his mother was in a much better mood now than she had been in the morning, and she was not in a bad mood. He immediately moved a stool, stepped on it and started cleaning. ??Although he and Zhu Yadan had already cleaned up the house the day they first moved in, Chang Haonan''s own concept of "clean" and Zhou Li''s concept of "clean" were obviously not the same thing. The time when I was busy before, I just didnt let the latter talk about it. Well, New Years Eve is mostly like this all over the country. Busy, but also enjoying it. ?However, there are always some people who, in order to allow more people to have a good New Year, give up the opportunity to spend the New Year peacefully. At the same time, north of Yinshan Mountain, the northern plateau. ?In the snowy field, a convoy that stretches for several kilometers is slowly driving forward on the frozen road. ?Most of the vehicles in the convoy are 6*6 Dongfeng EQ240 trucks, and behind almost every vehicle is a four-wheel tractor with a gun jacket and a very different appearance. Obviously, this is a towed artillery unit. However, if you look closely, you can still find that the artillery in the entire team should be divided into two models based on the length of the barrel and the style of the trailer hub. ?In a BJ2020 jeep at the front of the convoy, a senior colonel officer wrapped in a green military coat in the co-pilot slowly opened his bloodshot eyes, raised his wrist and looked at his watch. "Ask the chief of staff behind us how far we are from the preset deployment position." He turned back and looked at the radio liaison officer behind him. This team belongs to the 4th Air Force Air Defense Mixed Brigade. An anti-aircraft force consisting of missiles and anti-aircraft artillery. The reason why they were moved hundreds of kilometers away from the base in the middle of winter was because a few days ago, the brigade headquarters suddenly received an order directly from the Beijing Military Region, requiring them to set off immediately to conduct an air defense warfare exercise with the neighboring radar troops. training. ??Moreover, it is specifically required that only large and medium-caliber anti-aircraft guns need to be carried, and no anti-aircraft missiles or fire control radars are required. So the brigade pulled out all the 100mm and 57mm anti-aircraft guns on hand and spent a whole day getting here. In fact, these two types of weapons were originally withdrawn from active service in the mid-1980s. It was only after 1991 that the Air Force, which felt that anti-aircraft missiles were not as reliable as fire sticks, reactivated these equipment. But due to years of storage, the reliability of these old guys has been greatly reduced. That is to say, the 4th Composite Brigade is located in a remote area, and there is nothing to do except training. Otherwise, at a time when the military has just begun to strictly control business operations, other troops may not be able to react so quickly. The chief of staff said that we are still about 15 kilometers away from the preset position and should arrive soon. The correspondent in the back seat raised his head and reported to the brigade commander Zhu Xuejun: Also, while you were taking a break, your superiors have already telegraphed the specific content of the drill. Hearing these words, the fatigue on Zhu Xuejuns face was immediately wiped away, and his whole body tensed up instantly: Hurry, send it here! I want to see what kind of complicated subject it is, and its so frustrating! The speed of a tractor-trailed heavy truck driving on unpaved roads in this kind of snow is actually very slow, not as fast as a person running with his legs running wildly. ?So, after about two minutes, a soldier trotted to catch up with the jeep and handed a cowhide folder in through the side window. ?Zhu Xuejun took it in his hand and opened the cover. However, the content inside was completely different from the long speech I expected. ?Only three short sentences. Simply put, it is to predict the direction and specific location of the target based on the data provided by the early warning radar, with an accuracy of about 1-1.5 kilometers and an update cycle of about half a minute. Relying on the cooperation of radio proximity bombs and timed fuses, without radar directly indicating the target, try to shoot down subsonic target drones coming from different directions and altitudes. Let us run hundreds of kilometers just to shoot a few sets of target drones? ?Zhu Xuejun felt that his double eyelids were twitching... (End of this chapter) Chapter 669 The “big” fireworks on New Year’s Eve Chapter 669 The big fireworks on New Years Eve The reason why such a slightly abrupt drill was conducted was naturally that the superiors had already agreed to the plan proposed by Chang Haonan and Ding Gaoheng after discussion and final voting. Even if you take some risks. After all, if it succeeds, the benefits will be too great. Since the end of the Cold War, the US military''s intervention operations around the world have basically not encountered any effective obstruction, except for the accidental defeat in Somalia. Whether it is Russia, its old rival, or China, which is now gradually regarded as a new rival, or even Europe, which has begun planning to become a separate world class, they can only choose to avoid its edge. ??If the Americans can be given a big blow at this juncture, even from a realist perspective, it will help to resolve the other party''s aggressive attitude in the final stage of WTO accession negotiations. After all, all the decent chips in the hands of the Donkey Party have been exhausted by the abstract behavior of the person in the white house. If the war card no longer works, you may even suffer unexpected setbacks. ?The only remaining cards are economic cards. ??At this time when the aftermath of the Asian financial crisis is still lingering, the only thing that can be quickly put on the table as an achievement in the remaining year is for China to join the WTO - ?That will directly bring several super large orders to high-tech companies in North America, and allow the urban elite and middle class to buy cheap industrial products produced in China. These groups of people are all the iron ticket warehouses of the Donkey Party. Even those traditional manufacturing companies that used to favor the Party can transfer their production capacity to China, which has a higher quality labor force and a stable society, thereby obtaining better profit margins and a surge in stock prices. This is naturally good news for China. Its just that the superiors considered it more carefully. ?Although the idea proposed by Chang Haonan is not a big problem, it is not as simple as it sounds to be implemented in practice. Especially based on the coarse target information provided by early warning radar, the use of anti-aircraft artillery to focus on a specific airspace for rough shooting was basically a skill that the air defense forces specifically practiced during World War II. ??Although as a backup just in case, anti-aircraft artillery commanders also learned this in school. ?However, theory and operation are not the same thing after all. ?Furthermore, the position of commander of large and medium-caliber anti-aircraft artillery units is now as rare as the giant panda. ?Zhu Xuejun is among the last group to have practical experience. ?In the case where the shooting window is already very short, if the reaction is slower, there is basically no need to expect to achieve any results. So, if you really want to increase the chance of success of your plan, it is best to send Buddha to the West. In other words, when the anti-aircraft gun faces targets at different heights and distances, the corresponding shooting parameters are directly compiled into a table and sent over. After all, the main models equipped by China, the Type 59 100mm and Type 59 57mm anti-aircraft guns, are actually the domestically produced models of the Soviet-made KS19 and S60, and they are completely consistent in core parameters. It is equivalent to making a mistake. The reason why we chose the northern plain is that the latitude here is basically the same as that of the Balkans, and the radiometric table produced has more reference value. After all, looking up a meter is much faster than calculating by hand on site. ?However, there is definitely no way to explain these backgrounds to Zhu Xuejun, an air defense brigade commander. For the time being, we can only give him a simple order. ?Of course, for him, doubts remain doubts, and orders must still be carried out. The mighty convoy soon arrived at the preset position. Zhu Xuejun put on his cotton hat and got out of the jeep. In the entire mixed air defense brigade, the total number of large and medium-caliber anti-aircraft guns that can be used immediately after being dragged out is about two and a half battalions, which is already a large number for an emergency dispatch. Chief of Staff Shu Dehan trotted over from behind and saluted him: "Comrade Brigade Commander, there are a total of 30 large and medium-caliber anti-aircraft guns, and 28 of them are currently in place. A 57-gun and a 100-gun tractor stalled on the road and are being repaired. It is estimated that they will be caught up within three to four hours. Team. Its not a big problem, I should be able to catch up. Hearing this result, Zhu Xuejun couldn''t help but show a look of pride. ? ? A sudden pull without preparation, and a long-distance run of hundreds of kilometers a day and a night. To be able to maintain such a completeness rate can definitely be regarded as a leader even in the world. After feeling slightly complacent for a while, he quickly returned to the current task: "Let each cooking team prepare to cook immediately. The weather is too cold. The comrades have been driving around in the car all day and night. They have to eat something hot to restore their strength. Before coming out, I asked them to cook all the quick-frozen dumplings I brought. It will definitely be the best tonight. No time to eat In addition, we have to ask the comrades of the engineering battalion to put down the engineering machinery and seize the time to transform the terrain and deploy their positions. Their extra meals will be put away after they return..." Each artillery battery was dispersed nearby, and attention was paid to deploying air defense camouflage nets. Although there is no air-to-ground confrontation in the notice from superiors, our front-line troops cannot take it seriously..." Instructions came out from Zhu Xuejun''s mouth in an orderly manner. The entire convoy also became active again. Large and medium-caliber anti-aircraft guns themselves are important ground air defense weapons and have very high requirements for the ground where they are deployed. Moreover, the temperature in the northern plains in mid-February was below -20C. Therefore, when the engineering battalion finally completed the construction of 30 multi-layered circular positions in accordance with the standards, the sky was completely dark. ? ? In the 1990s, night vision devices were basically a black technology that the Chinese army could not even dream of, so at night, they could only rely on anti-aircraft lights to provide illumination. Not to mention the difference in brightness, if there is an open space for confrontation, it will be easily discovered. This issue still needs to be reported to the superior... ?Zhu Xuejun, who was sitting in the command vehicle, looked at the anti-aircraft artillery position waiting for him from the small window not far away, but his face was not at all relaxed. He is confident that his troops have perfected their skills. But human subjective initiative has its limits after all. If you really want to fly an anti-aircraft parachute, equipment with better performance is indispensable. You said, the aviation force has been on a roll recently. I heard that some units have changed their aircraft twice in three years. Why cant this good thing happen to our air defense force... ??Taking advantage of a short period of time at the beginning of the exercise, Zhu Xuejun said to the chief of staff not far behind him. Theres nothing we can do about it. After all, people who fly in the sky are definitely more popular than people like us who roll in the mud. The latter also sighed lightly: "Moreover, if we really want to talk about it, our surface-to-air missile force has purchased several batches of S300s over the years, more than the aviation force has purchased Su-27. The problem is still that the performance of our domestically produced aircraft is usable, but the domestically produced air defense missiles are really not good enough. Sigh...that makes sense. ?Zhu Xuejun knows that he can''t really change anything about this kind of thing. Now he just kills time by doing oral gymnastics with his old partner. At this time, Shu Dehan stood up and patted his shoulder: Okay, the training time is coming, I have to go to the other side. After saying that, he lowered his head and got out of the command vehicle In combat status, two chief officers cannot stay in the same position to avoid being overtaken by one another. ?Zhu Xuejun also picked up the microphone from in front of him: Attention all units, reload ammunition and enter the first level alert state! The originally peaceful snowfield suddenly came to life. ?The artillery squad soldiers in white camouflage uniforms began to carry the artillery shells enthusiastically and swing the gun mounts to the direction they were responsible for. Yinshan 01, this is the command center. ??The shortwave radio in the command car sounded: The target information has been captured, and you will be notified of the coordinates next, once every 30 seconds... ?Zhu Xuejun took a deep breath, picked up the slide rule and pencil in his hand, took off his watch, and placed it next to him: Yinshan 01 is ready At the same time, a low-RCS target drone modified from a cruise missile slowly flew over from an altitude of 6,000 meters. ?Zhu Xuejun in the command car quickly marked coordinate points on the map in front of him, while the staff officer next to him calculated and reported the corresponding theoretical shooting parameters. The target has ten minutes to enter the shooting area. Five minutes Three minutes One minute 30, 29, 28 Shoot! Bang-bang-bang- ?Ten minutes later, as the firing order was issued, six anti-aircraft guns in one sector opened fire at the same time, completing a 15-round burst within one minute. The flames flashing from the muzzle almost illuminated the surrounding snowfield. Nearly a hundred different fireworks exploded in the night sky on New Years Eve (End of this chapter) Chapter 670 No Chinese allowed! Chapter 670 No Chinese allowed! Under normal circumstances, after completing one round of shooting, the air defense force should immediately adjust the firing elements to prepare for the second round of shooting according to the actual situation, or quickly return to concealment. ?However, these experiences were basically passed down decades ago. ??The last time anti-aircraft artillery was used on a large scale was in the Vietnam War. The tactics used were not fundamentally different from those used in World War II. But it is already the turn of the century, and it makes sense to set up a concealment and ambush before engaging the enemy, but if you think about regaining concealment after completing a round of firing, you are completely deceiving yourself. What''s more, this is a training mission. means that the nature is closer to "war tactics verification". ??The 6th Air Defense Brigade was required to record all command parameters in detail after each round of firing. In order to later compare with the trajectory and hit situation detected by the radar on the other side. ?After completing the first round of shooting, Zhu Xuejun, while instructing the staff officer to record the data, leaned out and raised the telescope to try to observe his "results." After all, even anti-aircraft artillery has basically achieved radar fire control over the years, and can completely see the target on the screen. ?Now that I have lost this intuitive method, I am still a little uncomfortable. However, through the telescope, Zhu Xuejun could only see the dark night sky like splashing ink, and the faint smoke and dust from the shell that had just been fired. After all, the target drone is just a target the size of an anti-ship missile. It is normal to not see it at 6,000 meters high or at night... Fortunately, just when he felt a little pity, the voice of the command center came from the radio station: Yinshan 01, Yangshan Station reported that your artillery fire accurately covered the airspace around the target and the target has been shot down. Attention, target 02 is preparing to take off and is expected to enter the test airspace in 15 minutes, bearing 180 At almost the same time, about a hundred kilometers away. ??Northern Air Defense Command Center of the Beijing Military Region. A group of mid- to high-level military officers were staring closely at the radar information displayed on the two large screens in front of them. On the radar map on the right, it is clearly shown that the target just now has been split into two and is falling. It was the target drone that had just been damaged by anti-aircraft fire and eventually disintegrated and crashed. Unfortunately, due to the problem of information update rate, the process of artillery fire hitting the target cannot be shown. ??And when the data was refreshed again half a minute later, the screen was clean again. This means that the two pieces of debris have fallen to a height where the curvature of the earth does not allow radar to see it. During the entire process, the other screen on the left did not display any valuable information. ?Only when the anti-aircraft fire exploded in a large area between 5900-6200 meters just now, a huge reflected signal was displayed on it. ?That is the radar echo generated by a large number of metal fragments. Yong Jin, it seems that this idea of ??using early warning radar to provide a rough direction and then using anti-aircraft artillery fire to provide rough coverage is still feasible..." ?Fu Quanyou, who was sitting in the middle of the first row, turned around and said to a lieutenant general wearing an Air Force uniform next to him. "Well... I have to say that from the perspective of the impact alone, it is better than what we expected before." ?Li Yongjin nodded, but still did not move his eyes away from the two screens in front of him. After a brief pause, the topic changed again: "Unfortunately, we still have no way to truly simulate the target characteristics of a stealth aircraft. Although this target drone modified with anti-ship missiles is already the smallest model of RCS, compared with the targets we expect to face, Its still much bigger. I dont know if we can detect the target signal in advance so smoothly on a real battlefield. As the Air Force Commander of the Beijing Military Region, he actually presided over the process of transforming the ideas previously proposed by Chang Haonan into specific tactics. This naturally includes the ongoing training mission. From receiving the instructions to making the plan, the whole process took less than 100 hours. Tonight is equivalent to a big test for him. ?The two screens in front of the people correspond to two sets of radar data respectively. The one on the right is a set of long-range early warning radars that have been improved in passive mode. They were originally used by No. 14 Institute for technical testing, but now they have been moved here to use their remaining heat. On the left, there is a set of common SNR-75E, which is the fire control radar of the Hongqi 2 surface-to-air missile. To avoid interference, the two were deployed in different directions, but the distance from the test airspace was still about 45 kilometers. Its a bit close to China, but just right for the Balkan environment. The test results are similar to what was previously estimated When faced with a target with a small radar reflection area, the S-band guidance radar cannot effectively see the target at all. The improved passive positioning radar can continuously and stably capture signals. This at least proves the potential of the latter in anti-stealth. You can also think on the bright side. ?Compared to Li Yongjin who was still worried despite passing the exam, Fu Quanyous mentality was much better: The passive radar we used for testing is just an improvement on the 407 radar. It is already more than 30 years old. Although the opponents we want to support are stealth aircraft with smaller radar reflection areas, they also have better equipment. The specific plan put forward by the technical staff is to improve the two Soviet-made P18 early warning radars. This is equivalent to strengthening the spear and shield. I think it is still worth fighting. ??If we say that after receiving Ding Gaoheng''s guarantee before, his mentality was still "gamble". ?After seeing the test results tonight, my mentality has basically become "stable." ?Because even if this cross-border support operation itself fails to achieve results, as long as the stealth aircraft can be "seen", it will be profitable. Thats right. Seeing the leaders making such positive statements, Li Yongjin naturally relaxed a lot: Anyway, no matter what, this idea of ??using multiple passive radars to replace a single giant radar to conduct multi-point detection of stealth targets is definitely promising. The most troublesome aspect of the new three-on-three-defense system is finally getting a bit of clarity The "most troublesome thing" in his mouth naturally refers to the stealth aircraft among the new three dozen. In the past few years, although the Air Force has put forward many related ideas, in actual operation, it is often stuck in the first step, which is "realizing that there is an incoming stealth target." Now you can at least start thinking about the second step. By the way, Yongjin. After a period of silence, Fu Quanyou suddenly spoke again: Based on the current situation, do you think it is necessary to further retain a few large-caliber anti-aircraft artillery units in the air defense force for defense around key cities? Hearing this question, Li Yongjin immediately felt a little numb ??His next step is likely to be promoted to the leadership of the Air Force. If during his tenure, the air defense force''s equipment will not be modernized, but will be equipped with a bunch of old anti-aircraft guns... ?Then his name can basically be engraved on the military branch''s pillar of shame. ?Thinking of this, Li Yongjin quickly shook his head: After all, the range of anti-aircraft artillery is too short. It can only provide supplementary air defense after the opponent completes its attack, and its own safety cannot be guaranteed. It is basically equivalent to exchanging one position for one aircraft on the opposite side. It can be used for emergency purposes in the short term, but in the long run more advanced long-range air defense missiles are needed... Fortunately, Fu Quanyou just asked casually and had no real intention of expanding the mixed air defense brigade into an anti-aircraft artillery division, so he did not continue to struggle with this issue... While the two were chatting, the next few rounds of tests were completed one after another. Basically, as long as the target does not change too drastically in flight altitude, the accuracy of artillery fire coverage can reach more than 90%. Although two very lucky target drones passed through the test airspace without any injuries, that was because their physical size was so small that they just avoided the debris flying in the sky. A stealth aircraft, no matter how small the RCS is, is still the size of a normal aircraft. There is no reason to escape. Watching the last target on the radar screen disappear in a burst of gunfire, Fu Quanyou took a deep breath, stood up, and gave instructions in an orderly manner: Yong Jin, you send a helicopter to the position of the 6th Mixed Brigade as quickly as possible and bring back the firing command data they recorded. Also, let the comrades of Dianke Group make a copy of the radar signal data, and I will take it back with them too Organize another group of commanders and staff with experience in anti-aircraft artillery command, and compile this test data into a table "yes!" ?Li Yongjin saluted, then turned around and prepared to leave the command hall. "Wait a moment!" Fu Quanyou called him from behind again: Remember to find another group of translators to translate all the words into At this point, he hesitated a little: Lets settle on Russian and Serbo-Croatian for the time being, so that they can both understand it and have a reasonable hint of the source. In short, no matter what, Chinese characters cannot appear in these materials, and when it comes to numbers and tables, my countrys unique writing habits must not appear. ?Li Yongjin immediately understood what his superior meant and raised his hand to salute again: "yes!" (End of this chapter) Chapter 671 full-time secretary Chapter 671 Full-time Secretary ?The holidays always go by quickly. In almost a blink of an eye, the holiday is coming to an end. Chang Yuan had to take annual leave before going out a few days in advance. After the seventh day of the new year, he had to go back to work no matter what. ?Of course, in fact, given his current situation, he is no longer on the field anyway. As long as he makes a report, his superiors will definitely approve a long leave without saying anything. Its just that Lao Chang couldnt get over the hurdle in his heart. ??Having worked diligently in his police job for more than 20 years, and now he is about to retire, he doesn''t want his colleagues to stab him in the back because of such a petty matter. Zhou Li is leading another graduating class this year. She is a senior in high school, so it is normal for school to start in the eighth grade. Chang Jiayao will not start school until the fifteenth day of the first lunar month. ??Although she really wanted to stay in the capital and follow her brother, considering that Chang Haonan was busy and didn''t spend much time at home, she probably would have to go hungry for nine meals in three days. ??Moreover, I am not familiar with the place where I live, and there is no public transportation or taxis in the location where I live. Even if I stay, I can only stay at home. In the end, I followed my parents back to Liucheng with some reluctance. After getting his family back on the plane, Chang Haonan himself has to start busy again. Chief, where are you going next? After getting back into the car, Zhu Yadan asked while lighting the ignition: "If I have to go on a business trip, I have to arrange my schedule one day in advance and report the security plan to my superiors..." ??As Chang Haonan''s business trips are getting longer and longer, and the security level is getting higher and higher, even if he already has a special plane, it is difficult to say that he can leave immediately like in the past. I wont go on business for the time being, I will stay in the capital to do some things. ?Chang Haonan finally sat back in the relatively spacious right rear seat: Go to the company. On the Shengjing side, the J-11WS has not completed the replacement of the turbofan 10 on the dual-engine. Even if it is completed, the single-engine test has passed almost 100% smoothly and no problems have been found. The subsequent dual-engine test will not be completed. There is no need for Chang Haonan to watch from the side. Just go through it before and after some extreme performance subjects. The progress in Chengdu is similar. The first prototype of the improved J-10 is still some time away from completion. As a single-engine aircraft that has become fatter, it needs to wait until the design of the Turbofan 10 is at least finalized before it can officially roll off the production line. So Project 10 is still using three prototypes No. 01, 03 and 04 for test flights. ? Among them, No. 01 is not a full-state machine, and it has already completed the factory project and transferred to Yan Liang to start preliminary identification and test flights. If nothing else happens, the high probability of being on the military parade will be the latter two which are in more complete technical condition. In the original timeline, because the J-10 used too many new technologies at the same time, many minor problems were discovered during the initial flight test and trial production process. In addition, it was a highly sensitive project, so it was not until the 00th batch was put into service. It was only officially made public at the end of 2006. Naturally, it cannot catch up with the National Day military parade in 1999. But now, many technologies have been verified in advance in several projects such as the August 3rd Project, JH-7A and JJ-9, which is equivalent to straightening out the technology tree, which is the idea of ????"running fast in small steps". Hence, when used on the J-10, it already felt quite comfortable. In addition, the prototypes No. 03 and 04 were transformed from Xiaotiantian to Mrs. Niu before they could enter service, and their positioning has also changed from "the main force of the future air force" to "preparing for export after slight modifications." Naturally, It doesn''t matter if you show up in advance. Rather, it might be possible to confuse foreigners After watching the military parade, I feel that Chinas J-10 is similar to everyones previous speculation. As a result, a year or two later, I suddenly found that the J-10 had changed into something else... Give them a surprise. In short, he happened to be in no hurry for several things outside the capital. Hearing that Chang Haonan said that he would not be traveling for the time being, Zhu Yadan was secretly relieved. ??As the former''s security level increased, she was also promoted to one level during the Chinese New Year. She is now responsible for various written work such as writing security plans, travel summaries, and situation reports. When she went to the military school, she originally liked training classes but disliked cultural classes. After graduation, I have been just an ordinary guard, let alone practicing these things by myself. The result is that I have forgotten most of the things I learned back then, and almost have to pick them up from scratch. I have learned a lot these days. It can be said that I have a profound understanding of what it means to be miserable if you are young and do not work hard. Because he hasnt been back for so long, the two piles of documents on Chang Haonans desk were covered with a thin layer of dust. Fortunately, there was no pile of letters and documents that he was worried about. Song Jingming followed Chang Haonan and watched his boss touch the surface of a certain portfolio, and then a streak of gray appeared on his hand. He was sweating all over, and he quickly explained: Your office is still cleaned every day, but we really dont dare to touch these files, so Chang Haonan laughed: Its okay, I can see that, and thats good. After all, except for the surface of the document, other places are fairly clear and clean. ?Although in reality, he would not just leave confidential documents that have nothing to do with the Torch Group in the office, it is always good to have this awareness. ?Seeing that Chang Haonan was not dissatisfied with this, Song Jingming''s expression became much more relaxed. He immediately placed a document under his arm in front of Chang Haonan and continued: According to your previous instructions, our office is responsible for handling daily non-substantive matters during this period. This is a summary table for you to take a look at. Hearing this, Chang Haonan''s eyes showed a little surprise, and then he opened the folder. Non-substantive matters are matters that have nothing to do with finance or human affairs. It may not all be red tape, but its basically not important. Even so, Song Jingming still wrote down all this, which shows that the office director really thought well. ?Furthermore, although there are many items in the content, each item is outlined and concise. It is obviously not the kind of word game that deliberately reports everything in detail in order to hide important matters. Most of them are official letters issued by other companies during the New Year and holidays, as well as applications to visit our company for study. As long as the time span is not too large, I basically merge them together. Song Jingming explained from the side: As for matters related to the business, they are basically handled by Manager Yang. I have just contacted her and she should be heading here now ?? Before he could finish his words, there was a distinctive rhythmic knock on the door outside the office. Chang Haonan didnt even need to raise his head to know that it was Yang Huimei whom he had just talked about. Mr. Yang, please come in. After about two or three seconds, Yang Huimei''s figure appeared at the door. ?Hold a thick stack of documents in both hands, and a bag hangs on one arm. Seeing this, Song Jingming quickly moved the things in the other person''s hands and put them on the desk. "Mr. Chang, I told you before that you need to hire a secretary..." ?Yang Huimei was panting and sat on a chair opposite Chang Haonan, holding her waist with one hand and said. ? In the past few months, Torch Group has basically been in a "manager offline system" state, and daily affairs have been basically handed over to Yang Huimei and Song Jingming. Only when decisions need to be made, Chang Haonan will hold a conference call. In fact, Yang Huimei once urged Chang Haonan to hire a full-time secretary, but the matter has been put off ever since. As a result, the former is almost brought into this position himself. "Don''t worry, when the salary is raised at the end of this year, I will definitely give you another salary increase..." Its not that Chang Haonan doesnt want to find someone, its because Yang Huimei is a university professor with rich theoretical and practical experience, so its difficult to find someone who can replace her in terms of work ability. ??And I know the basics. I have participated in foreign negotiations with the aviation industry in the past, so I dont have to worry about problems. ?Even if you spend a little more salary for this, it is worth it. Its not about the money. ?Yang Huimei waved her hand: Im getting older and the groups business is getting more and more, and sometimes I really cant keep up with my energy. If you really dont want to worry about outsiders, you can choose from the students who have graduated from my research group in the past two years. This way, with me as your mentor, there wont be any big trouble..." Of course Chang Haonan knew that the other party was trying to kill two birds with one stone. The popularity of business professors mainly depends on what kind of jobs they can help graduates of their research groups find. Especially now that graduation basically does not include distribution. As a currently flourishing enterprise, Torch Group is definitely a very good place to go. At the same time, it can also share Yang Huimeis own work pressure. ?Of course, as long as the ability and character of the people recruited are good, there will be no loss to Chang Haonan. So he was happy to give this favor. ?However, we still need to make it clear: Thats fine, the fertilizer will not flow to outsiders fields. ?Chang Haonan deliberately hesitated for a moment, and then nodded: The students in Manager Yangs research group are definitely worth giving a chance (End of this chapter) Chapter 672 Supercomputing export, I’ll be in charge Chapter 672 Supercomputing export, I make the decision ??Yang Huimei came here this time, naturally, it was not possible just to talk about asking Chang Haonan to find a full-time secretary. So, after some brief greetings, she quickly got to the point. "Mr. Chang, I have reported earlier matters to you before. The relevant records are in these files. They are organized according to the type of transaction and date. You can take a closer look later." ??Yang Huimei said, picking up the top one from the pile of documents that had just been placed on the table and handing it to Chang Haonan: But I just received this this morning. Before I could contact you, I received a call from Director Song, saying that you would come to the company today, so I brought it over directly. The latter opened it and found that inside was a letter of explanation from Shuguang Group. The content is not long. The general idea is that after our own testing (and of course users such as 112 Factory who pre-ordered the early trial version), we believe that the Sugon 2000T adapted to TORC Multiphysics has basically mature technology and can be officially released at any time. As mentioned before, TORCMultiphysics has actually collected enough user feedback and data. The official version of the software has even been packaged. The delay in releasing it is largely due to waiting for Sugon 2000T to complete the stability test. Now, it is clear that the time has come. Is there a need for a special press conference? Seeing Chang Haonan''s eyes leave the page, Yang Huimei asked again: "Since the end of last year, we have received many letters or phone calls from users asking us about the expected release date, licensing method and pricing of the official version of the software. At that time, we basically responded according to the same template, but in the end we also left Let them wait a moment." Judging from the number of customers who have consulted with us, I think there is a lot of attention. If we can take advantage of this opportunity to promote it, the effect should be good. In addition, the groups current cash flow is a little tight. Although we can currently obtain loans directly from banks, it should be safer to control some risks. "Um" ?Chang Haonan leaned back in his chair and did not answer immediately. ??If calculated from a business perspective alone, then Yang Huimeis idea is definitely no problem. ?Although TORCHMultiphysics has already gained a lot of popularity, there is no end to publicity. The number of users who have actually experienced the trial version is still relatively small. In addition, even in Europe and the United States, the Internet is far less developed than it was more than 20 years ago. Therefore, most interested potential customers are still in the "Have they heard of such a thing?" I know something, it seems to be quite powerful, but I dont have a concrete concept stage. ?At this juncture, the cost-effectiveness of publicity investment must be the best. But Chang Haonan is not just the general manager of Torch Group after all. He also needs to consider the problem from a larger perspective. That is Dawn 2000T, and what Ding Gaoheng mentioned to him before, China is likely to join the WTO soon. In fact, although it is a customized version that has been specially adapted, the degree of localization of core components is not high, especially when high-performance chips still need to rely on imports, the optimization space for this "customization" is actually very limited. ?Compared to just finding a supercomputer of the same level, the efficiency of running TORC Multiphysics may be only about 10%-15% higher. Considering that its own performance is only around the level of 1996, even if calculated at 15%, it is still a huge disadvantage compared to the most advanced models in the world. This is especially true for users in developed countries in Europe and the United States. What really brings attraction is that it can open up more core functions of TORCHMultiphysics. So, according to the previous cooperation agreement between the two parties, a share of the profits from each Sugon 2000T will be given to Torch Group. But this also means that TORCMultiphysics and Dawn 2000T must be highly bound. ?The former is okay. At the turn of the century, because the Internet bubble was still at its highest point, the world generally regarded computer software as a relatively open industry. But the computer hardware, and the high-performance computers themselves, are different. China has done little in this regard in the past, so it did not involve much content in the information industry during its WTO accession negotiations. ??There is still a need to make a fortune in silence to avoid unnecessary complications at the last moment. ?Although it is a publicly released commercial product, no matter whether Chang Haonan holds a press conference with great fanfare or not, the real core industry insiders will know the relevant situation. But the person responsible for negotiating with China is not an expert. As long as they dont know. ?Thinking of this, Chang Haonan sat up straight again and said to Song Jingming, who had been silent just now: Ask Academician Li Jie of the Institute of Computing Technology if he is in the capital. If he is, please help me make an appointment with him. "no problem." The two of them met at the Institute of Computing Technology of the Academy of Sciences. Although at the corporate level, Torch Group and Shuguang Group are at the same level. But after all, Li Jie is an academician, so he still needs to be respected in this regard. Comrade Haonan, long time no see. Academician Li. ?Chang Haonan stepped forward and shook hands with the other party. The last time the two met was when they received the award together at the General Assembly Hall last year. ?Now, after nearly a year, Chang Haonan has not changed much except that his temperament is more mature, but Li Jie can actually tell that he is much older. I must have been under a lot of pressure recently. Comrade Haonan, you must have read the letter I sent in the name of Shuguang Company a few days ago, right? ?? Li Jie placed two cups of tea in front of Chang Haonan and himself, and then sat on another sofa adjacent to Chang Haonan: Ive heard before that in terms of software, the official version has been prepared for a long time. Im really sorry, Sugon 2000T encountered some compatibility issues during the development process, which delayed it for several weeks. The latter picked up the cup and took a sip of tea, while waving his hands: It doesnt matter. TORCH Multiphysics has no direct competitors around the world. If it is released earlier or a few weeks later, it will not have much impact. ??This answer can be called domineering and sideways, and it directly stopped Li Jie next to him for a moment. After all, it is basically the only Chinese enterprise in this era that can be so confident. Chang Haonan then continued: However, the reason why I came here this time is indeed about Dawn 2000T. You said. ?? Li Jie is actually of the same generation as Du Yishan and Ding Gaoheng, but he was elected as an academician relatively late. In addition, when he met Chang Haonan, they already had a cooperative relationship of equals, so his attitude was much more polite. I hope that the sales strategy of Sugon 2000T, at least for foreign users, can be determined by our Torch Group. (End of this chapter) Chapter 673 There is a saying that makes a fortune with silence Chapter 673 There is a saying called "Making a fortune in silence" "ah?" Hearing Chang Haonan''s request, Li Jie''s first reaction was not to agree or reject. But at a loss. He was originally picking up the teacup and preparing to drink it all, but he stopped midway: Wait a minute A few seconds later, he put the cup back on the coffee table: What we said when we had dinner in the Great Hall was that this machine is going to be used in very large projects like the Qinghai-Tibet Railway? Why are there suddenly claims from foreign users? Its not that Li Jie is unwilling to do foreign business. Mainly I have never thought about it in this direction in the past. How many dishes are there? Is it too expensive to export? In the past, there was no way to buy one... ?Chang Haonan also put down the teacup in his hand. "Well" ?He briefly thought about it and found that this seemed to be the case. Zhu Lan, who also came to receive the award at that time, happened to ask how to simulate the vibration of heavy-duty trains during driving and the land base settlement after long-term loading if a railway is to be built in a plateau frozen soil environment. ??And this kind of semi-infinite open domain problem just needs some new and targeted algorithms. So, I only talked to Li Jie about the new model of supercomputer when I was having dinner later. ? There were two main points emphasized at that time. One was to optimize computer hardware based on the TORCH Multiphysics algorithm, and the other was to increase the localization rate as much as possible while achieving basic functions to support the domestic semiconductor industry, which was almost dying. As for exporting ?Chang Haonan thought at that time. But he was interrupted by the ritual process and had no time to speak out. ?Originally, he thought he would have plenty of time later, but it turned out that he had been traveling around on business since that time and had hardly been back to the capital. The two parties sign a formal cooperation agreement, and subsequent collaborative development is completely delegated to others. ??It is naturally even more impossible for the people below to add content privately that their boss has not said. ?Looking at it this way, Li Jie must have heard about this for the first time today... Ahem ?Chang Haonan also felt a little embarrassed. Fortunately, its not a fatal deviation, so its not a big problem. Well...then we said that this supercomputing machine was only for special use and didnt care about compatibility. ?Chang Haonan pretended to be straightforward: But didnt you put in a lot of effort to solve the compatibility problem in the end? ?In the initial planning, the Dawn 2000T was just a modified version of the Dawn 2000-1 that was weaker in other aspects and specialized in running TORCH Multiphysics. But the final product was a fully enhanced Dawn 2000B. Hearing Chang Haonan say this, Li Jie couldn''t help but show a proud look: Hey, the plan cant keep up with the changes... "When we first talked about Sugon 2000, our technology and funds were not enough. The best Sugon 2000-1 at that time was about the level of others in 1994. It might be a little worse, and the components were basic. They are all imported. If you want to make targeted optimization, you must sacrifice versatility. "However, in the past two years, we have made several large domestic orders, withdrawn a lot of funds, and invested more in the research and development budget. Moreover, those low-end server product lines have really produced several high-end products. In the past, domestic component suppliers took a gamble, and finally invested more than 30 million yuan, which finally took away the compatibility issue..." Furthermore, the performance of Sugon 2000B, which was released together with Sugon 2000T this time, has probably reached the level of others around 1996... Of course, these should have been mentioned in the letter I sent you..." ?Unknowingly, Torch Group and Sugon Group have actually begun to drive the development of the domestic semiconductor industry... Of course, Li Jie said this easily and freely, but looking at his sideburns that are obviously much grayer than a year ago, he has obviously experienced a lot of hardships that are difficult to explain to outsiders. "Then...my plan can''t keep up with the changes." ?Chang Haonan is going to make up for himself a little: "At this time last year, the TORC Multiphysics software, including the entire Torch Group, was not very famous. I just thought about the export. I definitely can''t talk to you about things I''m not sure about." But now, we have reached cooperation with several large European companies, and our reputation is basically established. Ive heard of this. Li Jie picked up the teacup again: "Although I am not engaged in machinery manufacturing, last year many people who came to do calculations with us, or bought servers and supercomputers from our group, mentioned that you had established a global company with an... uh... Italian machine tool company. A joint venture within the scope of the company has brought high-end machine tool production lines to China for the first time. "It is indeed a huge leap for our country." Excluding special cases like Chang Haonan, it is basically correct to say that every other line is like a mountain. ?An academician in the field of computing science, although he cooperates with Torch Group, basically only hears about things that have nothing to do with him. ?However, what Chang Haonan originally wanted to show off was not this: Machine tools... it is indeed the case, but this field is too segmented and belongs to a niche industry. Only those in the circle know that it is powerful, but outside the circle it does not have much influence. ?At this moment, Li Jie didnt drink the water he just put to his mouth: This is not influential yet? He put the cup back on the coffee table for the second time: In October last year, Academician Wang Zhongqi came to me on a business trip and told me that you would push our countrys CNC machine tool industry forward by at least 20 years! Two different things. Chang Haonan waved his hand: "This is indeed the case in China, but to be honest, for most Europeans, even those in European academic circles, they don''t pay much attention to what development China has achieved. If we want them to open their eyes , then there must be something iconic. Thats true ?Li Jie tried to drink water again: Although it is said that Europe is in decline, as far as the foreigners I have come into contact with, these old Europeans are generally more arrogant than Americans. Chang Haonan immediately took over the conversation: So, last year we directly cooperated with Airbus to help them build helicopters. We also cooperated with Ferrari, which makes sports cars, and helped them win a world championship..." ?This is not just a boast. In fact, since the two belong to the same group, many people directly refer to Eurocopter as Airbus Helicopters, and later the official name was changed to the latter. As for Ferraris world championship ?What, is the team championship not considered the championship? Ahem ??Although Li Jie finally managed to get some water this time, he almost choked on Chang Haonan''s words as soon as he drank a little bit - ??Although the C.B. Ferrari Group, which cooperates with Torch, has top-notch product quality, its popularity in China is still not as good as that of its counterparts in Germany, Switzerland or Japan. But when it comes to Airbus and Ferrari cars, basically everyone knows about them. Furthermore, compared with the cooperation between these two, the influence of the former one is indeed not great... So, do you think that the performance of our Dawn 2000 itself is not that bad, and with your customized version of the software with additional functions as a lure... as a bargaining chip, it should be possible for foreign customers to pay? Li Jie, who failed to drink water three times, simply gave up and leaned back on the back of the sofa. HmmI think its more than possible. ?After some thought, Chang Haonan gave a more positive response: "There are too many to mention. Based on the news last year, I estimate that at least two or three units can still be sold..." Two or three units are fine too! Li Jie seemed to be confident when he heard what he meant, and he immediately became nervous: Dont say two or three, as long as one can be sold! Isnt it the sales strategy of Sugon 2000T? You have the final say! If you can sell more than ten or twenty units every year, you can turn our Shuguang Group into a wholly-owned subsidiary of Torch Group! ?Of course, he only thought about this last sentence in his heart, but in the end he still didn''t feel embarrassed to say it out. They are all decent people and want to have face. After calming down a little, Li Jie immediately asked about the specific operation matters: Then...do we need our company to cooperate in publicity? No, no, no. ?The reason why Chang Haonan wanted to grasp the sales strategy was because of this, and he quickly waved his hand: "This matter involves a lot, especially now that our country is negotiating its accession to the WTO, and computer hardware trade is a sector that Americans value more, so... at least in the short term, my plan is to find familiar customers for targeted sales." "We have an old saying in China, which is called "Making a fortune in silence". It''s best not to say anything now. Otherwise, if there is any deviation in the propaganda, you and I will have to bear historical responsibility..." ?Li Jie thought about it again and felt that it made sense. After all, doing business depends on channels. ?Now that Torch Group has exclusive external channels, it doesnt matter if it doesnt engage in high-profile publicity. Then as you said, well keep a low profile for now. After two days, we will sign a contract and let your company serve as the exclusive distributor of the Sugon 2000T model. This will also clarify the relationship between rights and responsibilities and make it easier to concentrate on exporting the complete computer for the first time! After finishing speaking this time, he did not wait for Chang Haonan to respond. Instead, he picked up the tea cup as quickly as possible, raised his head and drank it in one gulp. (End of this chapter) Chapter 674 Dream Group, something is not right Chapter 674 Dream Group, something is not right ?Li Jie, who finally finished his tactical drink of water, refilled a glass for himself and Chang Haonan respectively, and then hesitated for a moment, looking like he was hesitant to speak. Mr. Chang, there is one more thing ?Looking at this meaning, it is likely to be followed by a question such as "I don''t know whether to speak or not." ?However, considering that both of them have technical backgrounds, this whole thing was a bit redundant, so he finally said directly: I would like to ask, is there any business relationship between your company and Dream Group? ??There seemed to be no connection between this question and the topic just now, which made Chang Haonan stunned for a moment: During the centralized procurement, did I buy their computer host...does it count? Needless to say, in this era, 100% of the accessories in the PC market are basically imported. Compared with other brands that have to import their entire machines from abroad, Dream Group can at least keep the assembly process in China, so in Public budget procurement eats up most of the market. Therefore, although Chang Haonan didn''t want to see the other party in his heart, he had no choice. Furthermore, from this perspective, Dream Group made some contribution to Chinas electronic information industry in the early days. Its a pity that it ends here. Of course this doesnt count ?Li Jie waved his hand and couldn''t help laughing: This can only be regarded as a normal purchase and sale transaction, I mean, cooperation like this with our Dawn Group. Strictly speaking, it was a bit over the line for him to ask this question. Although in most cases the cooperation between enterprises will be made public, the details of the ups and downs are also considered commercial secrets. ??If it''s two private companies, then it''s no problem for the bosses to sit together and chat about everything. If it''s not convenient to answer, just go around in circles. ??However, Torch Group and Shuguang Group are both second-level state-owned enterprises under the Academy of Sciences system, and they have a completely parallel relationship with each other. Even in terms of business, the former has a closer relationship with the Science and Technology Commission. ?That''s why Li Jie was a little hesitant just now. ?However, Chang Haonan didn''t take it seriously. After all, he had been planning to target Dream Group two years ago, but he had never mentioned it to anyone else. So he immediately shook his head: Such in-depth cooperation naturally does not exist. As you know, Torch Group is not large in scale, and its main business is to provide targeted and exclusive technical solutions. Therefore, those who have business dealings with us are basically institutions or companies with R&D capabilities..." Hearing this, Li Jie finally relaxed. ?Immediately realized that there was something wrong with Chang Haonan''s words, and couldn''t help but chuckled Those who have dealings with Torch Group are institutions or companies with R&D capabilities. ??Isn''t this a subtle hint that Dream Group does not have the ability in this area... After giving the answer, Chang Haonan also asked with doubts: Why did Academician Li suddenly ask about this? As a reborn person, he naturally knows that the Dream Group is unreliable. Furthermore, the situation where the originally smooth foreign trade business of Chinese enterprises was disrupted by insiders introducing external forces has happened countless times in the previous life. So Chang Haonan still has this vigilance. But it seems that Li Jie shouldn''t be so sensitive. After all, according to the timeline, the Dream Group at this time should not have become the conscience of American imperialism. This is a long story Li Jies expression, which had been smiling just now, suddenly turned serious: "You should know that in the past two years, the superiors were planning to merge the entire computing institute into the Dream Group, so at that time I was always the deputy director in charge of the work, and the director was always named by the CEO of the Dream Group " ?Chang Haonan nodded, but did not answer the conversation. He just motioned for the other party to continue. "Later, their ambitions grew and they wanted to take over our Shuguang Group as well. At the highest point, they had obtained 20 million of our shares. However, in the end, because our group''s revenue suddenly improved in 1997, it was Didnt let the Dream Group succeed. Speaking of this, Li Jie also raised his head and glanced at Chang Haonan. After all, the somewhat sudden wave of supercomputing craze is still influenced by the latter. Although after calming down, everyone gradually discovered that without a person as incredible as Chang Haonan to take charge of the work, just having a supercomputer would have limited effect, but in any case, Sugon Group made a lot of money that time, directly Reversing the loss trend of previous years. More importantly, it injects a wave of confidence into the superiors who were originally a bit wavering about this bottomless pit of funds. Chang Haonan finally understood: So, you, or we, have ruined Dream Groups good deeds, so Academician Li is worried that they will use some off-board tricks to sabotage it? Not just worried. Li Jie looked solemn and said: Actually, when doing business, they want to acquire us, but we dont want to be acquired. It is normal for the two parties to have conflicts or commercial struggles. But since last year, we have obviously encountered some obstacles when importing computer components, some of which are related to production capacity, some to customs clearance documents, and some to review. "Although there have been no real problems so far, if Mr. Chang wants to keep a low profile in the electronics industry, he should not only consider foreign countries, but also pay more attention when doing things domestically, or rather , but we should pay more attention to it at home... ? ? ? Although he and Chang Haonan have business contacts, they have not had much private communication in the past. He only knows that the latter has extraordinary ability in research, and he does not know that Chang Haonan has a series of experiences in the past. role in the incident. Thats why I have such a reminder. Dont worry, Ill be careful. Chang Haonan naturally knew that the other party meant well, and nodded to express his understanding: Besides, I have experience in dealing with this kind of thing. Obviously, in the current timeline, due to his series of twists and turns, Dream Group encountered development obstacles in the country early. Conflicts will occur sooner or later. ?Before China truly became the worlds factory, the functions played by companies like Dream Group were generally positive. After all, even if it is an assembly factory, assembling electronic products belongs to the high-tech field and is definitely a valuable industry for China at this stage. However, when China is no longer satisfied with being the world''s factory, these companies that have been used to making money as factories have turned into a dragging role. This is a structural contradiction. ?The more things he does and the greater the role he plays, the sooner China will develop upstream in the international industrial division of labor. It will be contrary to the interests of the comprador group. ?This is actually the same as when he wanted to develop independent aviation industry standards a few years ago, but was blocked by a group of people. Taking away someones job is like killing ones parents. It''s just that at that time, Chang Haonan was just a little Kalami with little energy. Even using the influence of the Science and Technology Commission has to be done through Du Yishan. There is not much that can be done. So most of the pressure, as well as the specific countermeasures he came up with, were all done by Ding Gaoheng. But now, times are different. ??In the Boeing merger and acquisition, as well as the upcoming Allied Forces Operation, even Americans dare to have a hand in it, let alone a dream group that has not even fully committed to the United States... Academician Li. Chang Haonans character is one that cant fight for short-term gains and losses, but must decide the long-term outcome. At that moment, he already had the idea of ????sitting down the drain on the Dream Group: I wonder if your company is interested in developing into areas other than commercial servers and supercomputing? ??Li Jie looked at Chang Haonan with a slightly curious look, but still nodded honestly: "Of course there is. After the previous popularity of supercomputing and servers, the market is a bit oversaturated. It would be good if the number of new orders can be maintained without falling. If you want to further improve it, you can either do it like you just said. Either way, we can open up overseas markets or expand other businesses horizontally. "However, in areas other than commercial machines, we really don''t have the resources... Take the PC market, which has the largest profit margin now, as an example. The entry point has already been laid out. If we go out, firstly, the superiors may not approve this move. This is a repetitive construction, and secondly, you can only pick up some scraps that other manufacturers dont want in the market..." Objectively speaking, Dream Group does have a good momentum at the moment. It is very difficult to make a comeback in the opponent''s advantageous game. ?The opportunity is that in a few years, Chinas government and enterprise procurement will try to introduce localization indicators for the first time, especially the localization of operating systems. In the original timeline, this first attempt was ultimately unsuccessful. But now there is still a chance. ?Hence, what Chang Haonan wanted to do was originally a roundabout strategy: In the PC field, it is really unrealistic to compete head-on with those companies right away. However, as you mentioned before, we have established a joint venture with an Italian machine tool company, and we are responsible for the industrial control part. Its just that the software is indeed written by ourselves, but the hardware still has to be purchased from imported models Having said this, Li Jie still cant understand: You mean to start with industrial control equipment, microcontrollers, etc But the level of domestic hardware... Of course Chang Haonan had already prepared the draft: High-end products are definitely not available now, but we can start from the low-end. No matter the level, we still have to build up the domestic industry ecosystem first. We cannot support an entire semiconductor industry chain just by selling supercomputers and servers... Do you still have a product line of low-end models? Li Jies focus is a bit different: I heard someone say before that the first product you launched was something that had never been produced in China before. Chang Haonan waved his hand: We definitely dont have a joint venture with Italy. We need to rely on that to gain brand influence, so the three-axis CNC machining center we first released is the lowest-end model. But in the future, an industrial control division may be established to provide other machine tool companies, especially domestic machine tool companies, with solutions for converting ordinary machine tools into CNC machine tools. This segment will definitely focus on low-end business. Although our countrys machine tool strength is not strong, the output is actually not low. If we seize this business, although the profit margin is relatively miserable, it will not be a problem to support a set of upstream and downstream industries. When the talent level improves, and then return to the PC market with a high localization rate as a selling point, although it should not be attractive to personal business, it will be enough even if it only eats the cake purchased by sensitive units... (End of this chapter) Chapter 675 Air Police 200, and Ring Engineering Chapter 675 Air Police 200, and the Ring Project ?Just when Chang Haonan was thinking about how to drain the firepower and gradually eat away at the fundamentals of the Dream Group. Chin Province, Nanzheng. ?As the huge door of the assembly shop slowly rose, a huge four-engine propeller aircraft slowly drove out of the factory, pulled by a Jiefang truck. The front half of the aircraft is not much different from a normal Y-8F transport aircraft, except that the original glass navigator cabin at the nose has been sealed by an opaque skin, and there is an extra "little white hat" at the front. There are more than a dozen densely packed spike-like radomes below. But on the rear half of the fuselage starting from the wing section, there stands a T-shaped formation that is almost one-third of the fuselage long. Further back, the entire tail of the aircraft has been heightened, and two inverted V-shaped tail fins have been added below the tail. ??Although the body itself still has the rounded appearance of the past, with the addition of an antenna on the back, the entire aircraft actually has a bit of a murderous air. Needless to say, this is naturally the first Air Police 200 early warning aircraft to be completed and rolled off the assembly line. In fact, the basic design of the Air Police 200, especially the coupling design between the T-shaped antenna and the vertical tail, was completed by Chang Haonan about a year and a half ago. Like the long-range rocket launcher designed by Jinling University of Science and Technology and the JJ-9 designed by Guihang Industry, it was part of the internal testing of TORCH Multiphysics. However, the technical foundation of Nanzheng 182 Factory is indeed limited. Their design department was just an on-site design office a few years ago and has only recently been expanded. ? Including Liang Shaoxiu, one of the dual chief engineers of the Air Police 200 project, although he has also completed the improvement of the Yun-8 new platform with Chang Haonan and others, he basically only has such a complete project experience. In addition, this project has existed as a backup for a long time, and neither funds nor other resources are sufficient. So it was delayed until the end of February 1999 before it was officially shipped from the factory. Actually, it is not entirely accurate to say that it was "dragged" until it leaves the factory now. After all, it took almost 4 years to change the J-7II to the J-7M, which almost did not involve the aerodynamic part. The transformation of the second transport aircraft into an early warning aircraft is, after all, a huge visible and tangible improvement, and there will be huge changes in aerodynamics, structure, power supply and other aspects. Even if the most critical antenna tail coupling problem is a ready-made solution, it will take less than two years to complete the other parts and build the aircraft, and the efficiency is pretty good. ? Its just that in recent years, the aviation industrys understanding of efficiency has been somewhat distorted under the leadership of a certain person... So, including Factory 182 itself, everyone feels that this efficiency is a bit unsatisfactory. Fortunately, starting from the beginning of this year, the allocation for Air Police 200 suddenly increased a lot, and superiors began to ask more and more about the status of this project. ? And today is actually not the day that the completion ceremony was originally scheduled to be held. So, when the plane was towed out, there was no red carpet, flower stand and other equipment prepared at the door of the factory. Even the traditional Chinese big red flower was temporarily obtained from nowhere. Because it was too small, it could not be tied to the entire nose section of the aircraft as usual, so I had to adjust the rope and hang it on the white radar on the nose of the aircraft. Under the hood. In short, everyone seems to be in a hurry and obey authority. However, the atmosphere inside Factory 182 was not at all cold due to the simplicity of the ceremony A big leader is coming. Even the two chief engineers, Liang Shaoxiu and Wang Xiaomo, only found out about this matter the day before. Thats why there was no time to arrange the ceremony. ?Even the former flew over from Jinling temporarily. Fortunately, the notice from superiors was also very clear. The chief was only here to personally inspect the research and development of the domestic early warning aircraft. The whole process was to be quick and simple, so as not to affect the normal work arrangements of the project team. The two men followed the tractor and came out of the workshop together with the early warning aircraft. At this time, there was already a group of people waiting outside. ??The person in the middle is wearing an unranked green military coat and a pair of black-rimmed glasses. Following him were Ding Gaoheng, who was wearing complete winter clothes, and the leader of an aviation industry group. ?After seeing the plane stop, a group of people walked forward slowly. ?With this posture, not to mention Liang Shaoxiu, even the well-informed Wang Xiaomo felt a little numb. ?Of course, it cannot be ruled out that I was not wearing a hat and was freezing in this cold February weather. The two of them took a deep breath almost at the same time and came to the front of a group of big guys. ?Liang Shaoxiu didn''t even notice that he was a little obedient. Report to the chief! The first technical verification aircraft of Air Police 200 has been completed and shipped from the factory, please give instructions! China has never seriously produced an early warning aircraft in the past, so unlike Project 10 or Project 11, it can start directly from a prototype. We must first build a technology verification aircraft. It proves that this radar + aircraft combination can fly and can still detect targets normally after flying. The Air Police No. 1 back then was stuck at this step. ?Although it can fly, it is almost invisible to radar after flying. ?Of course, each of these large aircraft is extremely valuable. ??If the technical verification process goes smoothly, it is possible to convert it to a prototype on-site, or even finally change it to mass production status for service. The leader in front of them stretched out his hand and pressed down, indicating that they could not be so nervous and be more natural. ??He did not start asking questions immediately, but led a group of people, including Wang Xiaomo and Liang Shaoxiu, around the plane for most of the circle. I walked until I was directly under the huge T-shaped antenna before I stopped, raised my head and stared upward for a while. Comrade Xiaomo, is this radar antenna completely produced by our country? The T-shaped antenna early warning aircraft is the first of its kind in the world, but the commander did not ask about the shape of the antenna. Obviously, the other party came here not just to watch the fun, but came prepared. You must have done some homework in advance. After all, he is a person who almost became a professor, and he has no background in science and engineering. Yes, we produce it entirely ourselves. ?Wang Xiaomo nodded: However, our current technology for processing high-silicon aluminum alloys using machines is not sufficient, so we use manual finishing methods, and the production efficiency is relatively low. ?The big leader will naturally not express his position casually. After hearing this answer, he just said yes, and it was not clear whether he was satisfied or not. After a slight pause, the other party spoke again: I heard that this phased array radar relies on semiconductor radiation units to control phase and amplitude changes. Do we need to import such components? ?Wang Xiaomo was a little surprised that the other party would ask such a detailed question, but he still quickly answered truthfully: On this aircraft, we use T/R components made of bipolar silicon material, which can be completely produced in China. Although the production capacity is relatively low, compared with the production speed of the array, it is not a problem. However, if you want to further improve radar performance, you need to use gallium arsenide components. At present, we can only rely on imports of this material, and the use and quality of imports are still limited. What about the ring project? The chief turned his head and asked almost immediately: What kind of technology is used for the Davidian radar on the Ring Project? ?As soon as this question came out, both Wang Xiaomo and Liang Shaoxiu, who had not had a turn to speak, immediately understood. As Chang Haonan speculated many years ago, there should be some problems with the ring project. Now, superiors are considering the survival of that project. According to the information provided by David Guo, the earliest Falcon system also used bipolar silicon, but in the ring project, they upgraded it to a hybrid component of bipolar silicon and gallium arsenide. "About this, the chief minister does not need to worry too much. The antenna of the active phased array radar is a relatively independent part. Although it is currently using bipolar silicon, in the future, domestic production of gallium arsenide will be achieved, or stable import channels will be found. , we have also reserved sufficient cooling power to upgrade some components to gallium arsenide. Furthermore, because the area of ??this T-shaped array is larger, within the commonly used range of 120 to the left and right, the performance alone will not lag too far behind, but the detection capability of 60 in the front and rear is relatively weak. Wang Xiaomo could not conceal the actual situation of the project, but he could eliminate the concerns of the chief in a targeted manner. ?Sure enough, the other party turned his back and fell silent while looking at the antenna in front of him. After a while, he started walking again: Lets go and take a look inside the plane first. (End of this chapter) Chapter 676 Early warning aircraft can also be matched with high and low levels Chapter 676 Early warning aircraft can also be matched with high and low levels The early warning aircraft does not need to load large cargo at all. The original tail hatch is naturally sealed directly. By the way, a lot of control and loading mechanisms are omitted. While reducing the take-off weight as much as possible, it can also be regarded as maintaining longitudinal balance. made some contributions ?The T-shaped antenna added during the modification process and the resulting raised tail made the rear half of the aircraft a bit overweight. Generally speaking, when faced with this kind of situation, the main balancing method is to adjust the fuel distribution in the aircraft. However, the range of the Y-8 air-tight model is already ridiculously short. If the fuel is further affected, the actual performance of this early warning aircraft will be reduced. There is no need to count on the efficiency... As a factory airport, the comfort configuration is naturally average. Hearing that the chief said he wanted to get on the plane, someone quickly brought an ordinary metal ladder and set it up at the cabin door on the right side of the plane. At the same time, a power supply truck had also been parked on the other side. Several ground staff got out of the car and began to connect power to the aircraft. Fortunately, everyone''s legs and feet at the scene were pretty good, at least they wouldn''t fall down even if they climbed up a ladder. Because there was no sunlight and there was no heating when the plane was not started, it was actually colder inside the cabin than outside. ?Wang Xiaomo, who was a bit older, couldn''t help but tighten his coat. As a military transport aircraft designed in the 1950s, the cabin of the Y-8 is relatively narrow. Therefore, only a row of operating desks is arranged on the right side. Fortunately, the plane itself is long enough, so the seats are quite sufficient. The chief walked back and forth twice in the cabin, then sat on one of the seats and gently moved the trackball and keyboard fixed on the table. ?Two years ago, when Chang Haonan and Wang Xiaomo talked about the early warning aircraft, in addition to the aircraft itself, they also talked about some design details. For example, do not use an ordinary chair at the operating station, and do not place an ordinary keyboard and mouse on the operating table. The early warning aircraft is, after all, an airplane, and various situations may occur while flying in the sky. ??In case of strong convective weather or even malfunction or damage, the fewer things that cannot be fixed in the cabin and can fly around, the better. ?These details may seem ordinary, but for China, which is seriously developing an early warning aircraft for the first time, it is easy to overlook. ?In particular, Wang Xiaomo, who is responsible for the research and development of in-cabin equipment, is not an expert in aviation technology, and some of the experience of ground radar stations cannot be copied to the sky. At that time, he also praised Chang Haonan''s thoughtfulness. But in fact, these are the lessons learned from the early days of the Air Police 200 project of the previous generation... Can this console be turned on now? The chief turned his head slightly and asked the people behind him. The operation terminal can be turned on, but the radar is not working yet. Wang Xiaomo replied: In order to reduce the risk, the current array will be removed during the first flight and replaced with a counterweight of the same shape and weight, so the radar is not yet connected to power. The time spent by Factory 14 to produce this radar is almost longer than that of Factory 182 to produce the following aircraft, so it is naturally very valuable. ??Although the risk of the first flight is very small according to the wind tunnel test results, it cannot guarantee that it will be foolproof after all. As soon as he finished his reply, another technician next to him turned on the power of the terminal cabinet. ??In this era, even Windows ??So the interface is not very good-looking. After the self-test, a schematic diagram showing distance and orientation appeared on the CRT monitor, but there was only a light spot in the middle. A few English prompts flashed on another screen next to it. The chief speaks foreign languages ??very well, and he can understand what it means that the radar self-test failed. There are many people here who are good at foreign languages, but for the radar we developed ourselves, is it possible to change the operating interface into Chinese? He didnt give any direct orders. After all, he came from a technical background and knew that at this time, it was not necessary for an outsider to guide an expert. The software is not difficult, but the number of bytes occupied by Chinese characters is a bit large. In order to ensure stability, the performance of the early warning aircraft operating terminal is far inferior to that of ordinary PCs, so we still use English for now. ?Wang Xiaomo quickly explained: However, when the hardware level improves in the future, it will not be difficult to change. We will strive to..." As soon as he said this, he was interrupted by the chief waving his hand with a smile on his face: Im just asking casually, it doesnt have to affect the normal research and development progress. Wang Xiaomo breathed a sigh of relief. ?Although he is considered well-informed, he is still a little nervous in this environment. Since there is no problem with the performance of the radar, what about the aircraft itself? Fortunately, the chief did not keep putting pressure on him, but quickly turned his attention to Liang Shaoxiu on the other side. ?Although the latter was well prepared, his heart sank when he heard this question. After all, there are actually only two types of early warning aircraft using phased array radars in the world today, namely the Falcon and the Swedish Erieye. The radar of the Air Police 200 benefits from the advantage of being a latecomer, even if it is not as good as those two. It can definitely be called the top three in the world. Comparatively, the Y8 platform is a bit embarrassing... ?Of course, no matter what, the question still has to be answered: "The improved Y-8 air-tight platform has several key design indicators that are improved compared to the original Y-8C. After the modification is completed, it is expected to reach a maximum level flight speed of 580km, a range of 2,000 kilometers, and approximately 4.5 hours. Leave time blank. For the special aircraft platform, these three indicators are important. It''s a pity...it''s really not that good. The air-tight platform itself has a maximum unloaded range of only 3,000 kilometers. Now it is equipped with a mission load with a total weight of more than 5 tons, plus an antenna with huge induced resistance and a large vertical fin, and it can still maintain more than half of the range. Liang Shaoxiu has reached the limit of his abilities. In other words, in terms of flight performance, there is indeed a certain gap between it and the ring project. The chief uses a declarative tone. Actually, the numbers are here, and there is really nothing to ask. ?Liang Shaoxiu suddenly didnt know what to contact. He can''t tell the entire development process of the flying platform in front of the big leaders. ?But at this time, Ding Gaoheng, who had been following him without speaking a word, came to his rescue: Chief, the Ring Project is a strategic transport aircraft platform after all. It is destined to have advantages in terms of range and speed. The take-off weight of the Y-8 is only one-third of the Il-76, so it is normal that it cannot compare. "Moreover, our domestically produced early warning aircraft cannot only be limited to the Air Police 200 model. When we planned to produce mainline passenger aircraft in Shanghai, Comrade Haonan and I considered the possibility of using the domestically produced C909 platform to modify the early warning aircraft in the future. " Hearing this, the chief''s eyebrows moved, obviously he was somewhat interested in this. ??Although Ding Gaoheng is not an aviation professional, he has heard Chang Haonan draw pictures for him many times. Upon seeing this, he quickly continued to add details: Although the take-off weight of the C909 is lower than that of the IL-76, it is still based on a passenger aircraft. The basic model has a range of about 6,000 kilometers, and the luggage compartment space under the floor can be converted into a fuel tank. Tupolev has carried out similar upgrades before, which can increase the range to more than 9,000 kilometers. Even taking into account the impact of load and radar antenna, it is enough to provide 8-10 hours of available mission time. Furthermore, for commanders and fighters who perform long-term missions in the air, the comfort of the passenger aircraft platform is much better than that of the IL-76, a military transport aircraft. ??This statement is obviously painting a cake, but whether it is a domestic phased array radar or the C909 passenger aircraft that is already building a factory and preparing for production, it is obviously not something invisible or intangible. So this cake can at least smell. Wang Xiaomo, who was next to him, quickly picked up the conversation when he saw this: "Our radar research and development is also in line with this. In addition to the T-shaped array currently used by the Air Police 200, there are also fixed three-sided arrays in the disc-shaped radome, and even back-to-back rotatable dual-band two-sided array radars. Simultaneous research and development should be able to match the progress of domestic passenger aircraft platforms. Persuade your superiors to do something, and pay attention to just one point. The higher the level of a leader, the more issues and aspects he has to consider when making decisions. It is enough to say what you are told, and you must not keep pushing. Hence, after the two of them finished speaking, the cabin fell into silence again. Only the buzzing sound of the cabinet cooling fan surrounds everyone''s ears. ? And in fact, since the chief will specially arrange this trip, it means that he already has some inclinations in his heart. Personal inspection is just to eliminate some concerns. There is no need for them to say much more. I am about to enter a stage where the content is relatively sensitive. I have re-registered a fan group at the bottom of the book details page. If there are chapters that I really cannot post, I will post them in the group... (End of this chapter) Chapter 677 phased array radar Chapter 677 Phased Array Radar After a moment of silence, the chief took off his glasses with one hand and wiped them slowly: When I inspected Hufei in October last year, the responsible comrade told me that they were cooperating with the technical personnel of the Tupolev Group to assemble the first domestically produced C808 passenger aircraft. I wonder what the current progress is? Obviously, he has begun to mentally evaluate the prospects of domestically produced large early warning aircraft. Chief, Comrade Wan Shengren, the general manager of Hufei, submitted a report to me just the day before yesterday, and it happened to be about this aspect. ??Although he did not expect that the topic would involve Shanghai Aircraft Group before this trip, fortunately, the domestic passenger aircraft project is a top priority in Ding Gaohengs view, so there is no need to improvise: "Prototype No. 01 of the C808 passenger aircraft assembled with large components has entered the final factory inspection stage. It is expected to roll off the assembly line in March and complete its first flight before the National Day at the latest. Prototype No. 02 is expected to be equipped with a pickaxe The domestically produced D436T1 engine assembled by China Development Group is expected to roll off the production line before the end of the year and make its first flight before February next year. "The C909 passenger aircraft has also completed technical modifications in accordance with my country''s aviation industry standards. Currently, Hufei has established a No. 2 project team, which is responsible for technical docking with Tupolev and the Perm engine production consortium. When the final assembly workshop is completed Then you can enter the production process. As for the timetable...because it has not been officially put into production, there is no way to determine a very accurate project node for the time being. If we look at the efficiency of the C808, it should be able to complete its first flight before the end of 2001. In fact, the expectations reported by Hufei are a bit more optimistic. After all, both models are cooperating with the Tupolev Design Bureau. As both parties become familiar with each other, the efficiency will definitely improve gradually, rather than remain static. ?It''s just that Ding Gaoheng couldn''t speak so rigidly in front of the big leaders, so he still left some margin for himself. The chief put his glasses back on. Although he made no other movements, it could be seen from his happy expression that he was quite satisfied with the progress. When Ding Gaoheng saw this, he naturally struck while the iron was hot: In addition, in the Equipment Industry Department of the Science and Technology Commission, the 70,000-ton heavy-duty hydraulic press developed under the leadership of Comrade Chang Haonan has also begun final assembly and is expected to be completed in the first half of this year. "After this key equipment is put into production, many aircraft structural parts that we could only import in the past, such as the body frame, landing gear, and central wing box of the C808 and C909, can gradually be made domestically. If you need it, sir, I have the relevant content You can compile a report and submit it. "Can." The chief nodded and agreed: However, if a report is to be produced, it should not be limited to the civil aviation industry. ?At this time, Ding Gaoheng actually had some plans in mind, but in this case it was not easy to speculate casually: The chief means... This year happens to be the 50th anniversary of the founding of the Peoples Republic of China. We can take this opportunity to summarize the achievements of China Aviation Industry in the past few years and submit it as a phased summary. Hearing this request, Ding Gaohengxin said that if it were a report on the entire aviation industry, I''m afraid you would see a name that appears very frequently in it... ?But thats what he was thinking just now, so he immediately stood up and responded: Yes, Ill get started as soon as I return to the capital! Lets go down and talk. ??The chief stood up, led everyone out of the cabin, and returned to the apron. Then he turned around and waved to Wang Xiaomo, who had been pushed to a position slightly behind him: Comrade Xiaomo, I remember you just said that domestically produced phased array radars are currently facing production capacity difficulties? The latter was a little surprised to be called on again, but he still trotted forward: Yes, especially the packaging of large-sized T/R components, because it is mainly done by hand and is very time-consuming. "The one on the early warning aircraft is actually quite good. It took about 14 months to complete production. Like the 346 Sea Star search radar that we are about to transfer to trial production, the antenna array box is 4 meters * 4 meters, and even It requires an additional tailor-welding step where the yield is not optimistic, and it is conservatively estimated that it may take more than 18 months to produce. ?The chief raised his hand and gently pushed up his black-rimmed glasses: Last year, when the Bi Sheng test ship was put into service, I heard from Comrade Shi Yunsheng of the Navy that the first test project after the ship entered service should be the shipborne radar you just mentioned? Yes, the Bisheng is currently undergoing adaptive changes in the shipyard and is preparing to install our first domestically produced ship-borne phased array radar. Wang Xiaomo explained: "The plan is to be similar to the SPY1 radar used in the American Aegis system. After it is actually equipped on warships, each ship will install four sides at 90 to each other to ensure full 360 coverage of the surroundings. However, technically The active phased array route is more advanced in comparison. Hearing that the equipment was better than similar equipment in the United States, although the chiefs expression did not change, his tone became much lighter when he spoke: I remember a year ago, this model was said to be under development...and now its ready for trial production? ??Although Wang Xiaomo is not directly responsible for the 346 radar project, this matter is really closely related to him: The 14th Institute said before that it originally thought that the technology for large-size aluminum alloy tailor-welding would still take another stage to tackle, so the timetable was relatively loose. "But this time when we were working on early warning aircraft and cooperating with comrades in the aviation industry system, we heard that Shengjing already had experience in using inert gas shielded arc welding to weld large-sized aluminum alloy workpieces in order to produce heavy fighter jets, so we asked They went to provide guidance and solved a lot of problems. Although the 14th Institute of Electrical Engineering is also a military-industrial unit, it used to belong to the Ministry of Electronics Industry. ??It is not the same system as the aviation industry, which is affiliated to the Commission of Science, Technology and Industry for National Defense. Thats why there is a situation like You have the technology I need, but we dont know it. Although we have joined the same family now, it is obvious that the cooperation between them cannot be established overnight. It can be said that thanks to the opportunity to develop a domestic early warning aircraft, the progress of this project has entered the fast lane. So, if you want to increase the production speed of phased array radar, what do you need? The chief did not make any more detours, but asked directly: In the future, we will need this kind of large-scale phased array radar in more and more places. It will definitely not work as it does now, and it will take more than ten months to build one. ?This problem is almost unnecessary for Wang Xiaomo to think about, because he is actually already thinking of a solution: "In a short period of time... we can only recruit a group of more high-level technical workers. This is relatively easy to say, as long as the organization provides a certain number of establishments." "In addition, we have purchased a batch of brand-new CNC milling machines from Torch-C.B. Ferrari Group, which was just established last year. They are expected to be delivered in the second half of the year. Once put into use, we can change the current manual workshop model of production, and the efficiency will naturally increase. Torch ??Torch Group is naturally famous among the big leaders. After all, given the age of their general manager, it would be difficult not to be noticed. Its just ??It seems that this is not the first time I heard the name Chang Haonan today... The other side. ?After meeting with Li Jie, Chang Haonan decided on a low-key sales strategy for Sugon 2000T. ? Two days later, without any deliberate confidentiality or any publicity, the two parties signed an agency and dealer agreement, identifying Torch Group as the exclusive dealer of Dawn 2000T and the exclusive overseas dealer of Dawn 2000B. ?Of course, the latter is just an addition. ??Although the computing power of model B is slightly higher than that of model T, for foreign users, it is a technology two or three years ago, and there are no additional benefits. Even at a cabbage price, it is difficult to sell it. Professor Yang. ?In the conference room of Torch Group, Chang Haonan is deploying the sales strategy of the official version of TORCH Multiphysics software: Send a letter to all users who have tried our software and provided at least one valid feedback, telling them that they can get a long-term discount of 10% off the public sale price. In addition, if they subscribe for more than three years at a time, You can also add another 10% discount In this regard, although he dare not say how professional he is, as someone who has seen various marketing strategies in the Internet era, even if he just comes up with some methods based on the gourd, it is definitely an exaggeration to say that it is shocking, but it is still eye-catching. Not a problem. Just like Yang Huimei at this time. She was writing furiously, writing down what Chang Haonan had just said in her notebook. In a few years, the sales situation of TORC Multiphysics will no longer be a secret to Torch Group, and it can even become a classic case used in classes. ?However, after finishing writing, Yang Huimei read it again from beginning to end, and then frowned slightly: Mr. Chang, didnt you say before that you would keep a low profile this time? We have hundreds of trial users who have given feedback, and we will notify them one by one... Isnt that low-key? What needs to be dealt with in a low-key manner is Sugon 2000T, which has nothing to do with our TORCH Multiphysics. ?Chang Haonans answer highlights a confident and confident answer: It would be better to say that the release of TORCMultiphysics should be more publicized, so as to hide it from others. "As for a special edition software that is bundled with a supercomputer, don''t let us know about it yet. We can target a few users who are more willing to buy to try it out, and it''s best to use the phone. way, so that the scope of the spread will be more controllable. "I see" ?Yang Huimei quickly agreed with Chang Haonans explanation: So do you already have candidates, or do you want me to pick some from user feedback? Is this... ?Chang Haonan leaned on the wide backrest of the boss chair, raised his eyes to the sky and thought for a moment: Its better to start from Maranello. Ferrari won the constructors championship last year, and will definitely compete for the team and driver championships this year. There is an urgent need for this, and... they have deep pockets, and they probably dont care about buying a supercomputer. (End of this chapter) Chapter 678 Intellectual property rights still need to be protected Chapter 678: Intellectual property rights must be protected ?For a software like TORCMultiphysics, which has been operating stably for more than a year and has basically no competing products on the market, its official launch is actually a smooth process. The main thing is to push a new version and take this opportunity to start charging. So, the three people did not stay on this topic for too long. By the way, Mr. Chang. Just when Chang Haonan was about to announce the end of the meeting, Yang Huimei suddenly changed the subject: When I participated in other project negotiations before, I encountered many disputes over software intellectual property rights. In the past, our software was free to trial, so there was nothing to say, but now we are charging. Considering the reproducibility of computer programs, I think there is no guarantee that someone will not use pirated versions. Furthermore, even if we dont consider the problem of cracking encryption, we have released so many trial versions before. If they continue to use them, we only rely on a user agreement. Im afraid it will be difficult to impose operational constraints, right? When TORCMultiphysics was first released two years ago, Chang Haonan specifically found people to write user agreements in multiple languages ??for major regions in the world. ?However, Yang Huimeis concerns are indeed justified. From the late 1990s to the early 21st century, due to unclear legal provisions and difficulties in law enforcement, piracy problems were relatively rampant around the world. Not to mention China. How many software companies have been killed by piracy in recent years. In order to prevent theft, many games can only set up levels in the game content that cannot be passed by normal means, and then provide a guide book with the genuine software. Domestic office software WSP almost went bankrupt at this stage. "I think big companies and institutions should be fine. Our Torch Group, and of course Mr. Chang, are all registered with it. The TORCH Multiphysics software is a key basic industry project designated by the state. There should be no one there. Not open to this kind of thing. As the office director, Song Jingming doesnt know much about business-level issues, but he has a clear view of the general trend: So, I think the main problem may still be small and medium-sized enterprise users, as well as universities and research institutions. I already have preliminary ideas about universities and research institutions. Chang Haonan waved his hand directly: We have finally taken this opportunity to stand at the forefront of numerical computing in the world, and we must still play some social responsibilities in the field of education. "What''s more, cultivating new blood is also good for ourselves. After all, we can''t expect that others will never come up with products with similar functions to ours. But if users who engage in numerical simulation all over the world have adapted to the operation of TORC Multiphysics when they were students, , which will form an innate barrier for latecomers. At that time, they will not be able to compete with us in terms of computing performance, software ecology, and user habits. Even if they have more advantages in price, or even if they are free, they will hardly pose a threat to us. As a Chinese engineer who has experienced the 2020s, Chang Haonan is very aware of the benefits these hidden costs will bring to first-mover companies. In the years when commercial software was intensively localized, even if the file formats were common to each other, there would be many compatibility issues that required manual processing. As for those who cannot even open each other''s project files, the conversion is even more of a nightmare. It can be said that if it were not for the large wave of assistance from the other side of the ocean, whether it is software or hardware, there would be no such strong motivation in China to engage in similar types of substitutions. And now. Thirty years to the east of Hedong, thirty years to the west of Hexi. Chang Haonan, who finally had his turn to be the pioneer, could not miss the opportunity to fight back. So what you mean is ?Song Jingming opened his notebook as he spoke. "For educational institutions, we can provide a free student version of the software, which even includes a full set of tutorials and training. In fact, we only need to change the name of the current trial version, but we need to add some features so that we can check which project at a glance. The files are from the free version." Of course, this version is only for the educational process. If you want to use it in research results or projects, you still need to purchase our commercial version of the software. This is a good way to start cultivating usage habits among students ?Song Jingming wrote quickly in his notebook, quickly recording what Chang Haonan said: But how will this version be promoted? "I mean, we can''t just advertise that we have a free student version of the software." "This is simple." Chang Haonans answer is almost without thinking: I compiled a textbook on numerical simulation in the past two years "ah?" As soon as he started speaking, Song Jingming stopped taking notes: Have you ever compiled teaching materials? "ah" ?The latter''s sudden surprise made Chang Haonan a little confused: "These...are all our own people who know the basics, so there is no need to act so exaggerated, right?" ?Song Jingmings answer was a little stumbling: NoI just feel that the people who compile the textbooks should all be very old experts in the industry ?His voice became quieter and quieter as he spoke, and finally he could no longer hear himself This is, to put it bluntly, a matter of mindset. ?Song Jingming joined Torch Group relatively late, and has not participated in the development process of TORCH Multiphysics, and has little relationship with institutions such as Beijing Hang University. From his perspective, although Chang Haonan is indeed very powerful, he is still mainly a "young and promising leader of a state-owned enterprise". But if you think about it carefully, you will find that although Chang Haonan is not very old, he can already be regarded as a leader in the industry. It is definitely qualified to compile teaching materials. Chang Haonan also knew that the other party was in the dark under the lamp, so he just waved his hand and continued: In short, most domestic colleges and universities should be using my book for classes now. I just need to find some cases and compile something like a practice manual later, and let those colleges and universities open practical courses. He dare not talk about wider fields, but in the field of numerical simulation, he definitely has a monopoly in the entire field. A person is likely to have used the textbooks compiled by him since he was a student. After entering the laboratory, he read the papers published by him. When he was doing research, he was still using the software issued by Torch Group. After graduation, he encountered problems that he could not solve when doing projects. If you have a problem, you will probably have to find a solution from Torch Group... ??Yang Huimei on the other side is Professor Jinghang after all. She didn''t show too much surprise, but she shook her head slightly, feeling that it was a bit outrageous. Then she started to wonder why her children were not so up to date... ?The more she thought about it, the more uncomfortable she became, so she finally decided to change the topic directly: "That will be the case for universities and research institutions first. The focus is still on small and medium-sized enterprises. The annual fee for our software is at least six figures. Some small companies have great motivation to get trial versions for commercial use through some channels. This If the pen is counted, it is definitely a big loss. How about just catching the big ones and releasing the small ones? Song Jingming obviously didnt have any good ideas. At the turn of the century, many professors and researchers were actually starting their own small companies outside, using the resources of the school and their graduate students to help themselves make extra money. It is difficult to completely kill a company of this size. Simply catching the big ones and letting go the small ones will definitely not work. ??Yang Huimei is experienced and experienced after all, and directly rejected this idea: We dont know what is big and what is small at all. For example, I opened a large company, but outsourced all the business related to numerical simulation. The high probability of outsourcing is to a small company. Cant we just ignore it? "I think we should start from the legal perspective and set up a special legal department to target people who take advantage of this kind of loopholes and punch two to death from time to time. At least there must be a deterrent, otherwise wouldn''t it mean that people would be watching? Become a soft persimmon? In fact, Chang Haonan had the same idea as Song Jingming at the beginning, just focus on the big ones and let go of the small ones, and capture the users of large enterprises and institutions. ?But what Yang Huimei said does make sense. In the field of intellectual property rights, some companies have never lost when it comes to fighting for the lower limit... (End of this chapter) Chapter 679 Accidentally make history Chapter 679: Accidental, making history In the final analysis, intellectual property issues are still limited by the times. It is definitely hopeless for Chang Haonan and the three of them to just think about it. Hence, Chang Haonan simply was not prepared to dwell on this issue for too long. What Professor Yang said does make sense. ?After thinking for a moment, he made a decision: However, dealing with the piracy problem is like Dayus flood control. It not only needs to be blocked, but also needs to be dredged, so we are prepared with both hands. "The first is, as Professor Yang said, to scare off a few outliers every once in a while. Of course, the main focus is to pick on those involving relatively large sums of money and serious circumstances, such as those who secretly use our software and can''t do anything in a year. There is no need to kill all those who are really self-employed with a few businesses, just think of it as contributing to marketing. " "Second, from our group''s own perspective, we also need to provide better services to genuine users, such as business training and technical guidance, including the numerical calculation business department. I see that the number of orders received has skyrocketed in recent months, and it can also Consider giving priority to requests from users who have purchased genuine software. ?These two items are basically the answers for commercial software operations. As long as the service is good, a considerable number of customers will still be willing to pay. ?Of course, at this moment, the idea of ??"selling software is essentially selling services" is still somewhat fresh to people. However, the wave just now had already raised the shock threshold of the other two people a bit high, so now they only showed a little bit of strangeness, and noted the second item mentioned by Chang Haonan in the notebook, and did not Too much of a surprise. Thenin this case, after we go back today, we will start preparing to recruit people and expand the size of the legal department? For Yang Huimei, the service aspect must be the responsibility of the technical department. As a layman, she does not need to intervene, so what she can do should be the legal aspect. Since Torch Group was able to compile several language versions of the user agreement before, it must have a team in the legal department. Not only that, but also proficient in the laws of many countries. But because it was just some clerical work before, the scale was not large. ??Now that we have to compete with others in court, in Yang Huimei''s view, we must have more manpower. It doesnt need to be expanded too much... Chang Haonan waved his hand: Our group even has two people in the office. There are currently five people in the legal department, which is already the department with the largest number of administrative staff. We just need to recruit a few more. "Well" ?Yang Huimeis movements stagnated: "Mr. Chang, a lawsuit involving a commercial dispute like this is different from an ordinary personal lawsuit. It doesn''t take one lawyer to handle it from beginning to end. Generally, a team of lawyers is needed...just like last year''s NSK fraud case. Procedure, both sides have hired legal teams of dozens of people..." Have you been paying attention to the follow-up of this matter? ?Chang Haonan was a little surprised. Although he handled this matter by himself, after confirming that the Japanese companies in Europe had been firmly entombed, he did not spend any extra energy on it. Unexpectedly, Yang Huimei, who was not directly involved in the whole process, was more interested. The latter couldnt help but shake his head: Mr. Chang, its not just me. It is estimated that business and law professors all over the world are now paying close attention to the follow-up development of this matter. Even hundreds of papers related to the incident have been written..." wochas such a big impact? It was indeed completely beyond Chang Haonan''s expectation to make such a big noise. ?But when he heard the second half of Yang Huimei''s words, he suddenly remembered a joke he had heard before he was reborn. A doctoral student has studied the various favorable factors after Britain joins the European Union for five years, with clear organization and strict logic. ??But before his graduation defense, Britain left the European Union. I wonder if there will be some unlucky graduate students studying Japanese business management who will be tricked by me... Chang Haonan''s low voice to himself was still heard by the other two, and the room was suddenly filled with happy air... After a moment, Yang Huimei put away her smile and continued to explain: "In short, since the 1980s, Japanese companies have had a relatively large influence around the world, especially in North America. Now, although Japan''s economy is slightly in decline, most people are still optimistic that they can restart rapid growth in the new century. " Chang Haonan almost stopped when he heard this, but he also knew that it was normal to have this view without opening his eyes, so he did not interrupt Yang Huimei, but allowed the latter to continue: "As a result, when this incident broke out last year, it directly affected the world, especially developed countries'' views on Japan''s industrial prospects. For example, among the companies involved, the stocks of the most serious ones fell to less than one-third of their original value. And the recovery is very slow. The most pessimistic expectation is that Japans GDP growth rate this year may be even lower than last years -1.3%..." In the original timeline, several major fraud incidents broke out in the early 21st century, but they were basically isolated cases and the scope of their impact was relatively small. By the time it was later widely exposed, Japans economy was already on the verge of collapse. There were too many lice but it was not itchy, so it could only be regarded as the icing on the cake. Now he has detonated this big thunder in the late 1990s... I always feel like I accidentally made history. After all, in the eyes of people of this era, the plot is actually "the signs of recovery that Japan''s economy had already shown were directly interrupted due to a series of fraud and default issues, so it returned to a period of recession." I wonder if Nobuo Ikeda would add this paragraph if he wrote "The Lost Twenty Years" in this timeline..." ?Chang Haonan thought to himself. But after thinking about it, I felt that there was no need to wait for Nobuo Ikeda to write this book. After all, in this life, Chinas GDP may not surpass Japans until 2010. So the Ministry of Foreign Affairs can completely reverse the situation and take the initiative to spend money to find a Japanese writer to write a book, so as to cultivate a group of reflective monsters for the other side... ?Although this part that got sidetracked in the middle was a bit fun, after all, the business was not finished yet, so Yang Huimei quickly returned to the previous topic: "Anyway, although we probably won''t fight a lawsuit of this size and level, even if we just perform a show of killing chickens to scare monkeys, we will definitely need manpower." What she said actually made sense, but it was obvious that she had misjudged Chang Haonan''s current energy. We dont need to put on a show to scare the monkeys. The Ministry of Justice only needs to find the target accurately and collect some preliminary evidence. Chang Haonan replied: As for the real hands-on part...please ask the public prosecutor and judicial system to take action, and conduct a special operation to combat intellectual property infringement from time to time and thats it. ?) ??Yang Huimei, who originally thought her boss was a bit soft-hearted, was immediately dumbfounded: Can this still happen? She just thought that if the other party loses the lawsuit, she can pay a lot of money. In the end, Chang Haonan wanted to let the other party lose the lawsuit and just go in and use the sewing machine... ?This deterrence ability is really maxed out. ?Chang Haonanxin said that you dont know how a certain penguin will resist game cheats many years later. I also learned this from future generations. ?Of course I cant say this, so I can only treat it as my own original work: Protecting intellectual property rights should be an official action. It would be thankless to do it by ourselves, so we still have to cooperate with comrades in the judicial organs. This can be regarded as our contribution to the construction of the rule of law..." ?Yang Huimei opened her mouth, but didnt know what to say. In the end, she just nodded: I understand, lets wait until there is a need. However, I have never done this job before, so I may need your guidance for the first time... ?Although she thinks she is well-informed, she has never experienced this attitude before Despite what Chang Haonan said, it is actually impossible for an ordinary individual, or even an ordinary company, to have the judicial system arrange a special operation to bring justice to you. ?But if you think about it carefully, Torch Group is definitely not an ordinary enterprise now, so it is normal to be treated a little bit specially. "Okay, if there are no other questions, let''s do this for now. I have a signing ceremony to attend tomorrow, TORCH Multiphysics, and the release of Dawn 2000T. You two will follow me more. If you have any difficult decisions, please contact me. I''ll be fine." Chang Haonan saw that the other two people were no longer talking. He also closed the notebook in front of him that was just a prop and had nothing written on it. He looked at Song Jingming on the other side: Also, Director Song? Song Jingming was still immersed in the shock of "Why didn''t I know our company was so powerful?", but he came back to his senses when he heard his name: Im here, Mr. Chang. Help me get the agreement template to be used tomorrow. This matter is urgent and cannot be delayed. Chang Haonan said. ??The cooperation agreement he is going to sign tomorrow is naturally an agreement he had made with Wu Yifan before, asking the latter to recruit people from Ermao in the form of labor dispatch. ?Originally, there was no need to be so anxious, but it is already late February, and Eastern Europe will soon enter a nightmare-level turbulence period. ??For the Transcarpathian-Satu Mare smuggling route, there is only a window of about a week left if it wants to be transported by road... (End of this chapter) Chapter 680 Prepare to cause trouble, support from the East Chapter 680: Preparing for trouble, support from the east The next day, Chang Haonan and Wu Yifan signed a cooperation agreement in a low-key manner in the Torch Group''s conference room. According to the content, the latter Black Sea Import and Export Trading Company will provide Torch Group with up to 1,000 professors, senior engineers or other professional and technical personnel of the same level within five years. In return, Torch Group will pay an intermediary fee ranging from 15,000 to 50,000 US dollars for each person according to different personnel levels, of which 5 million US dollars will be paid in advance after the contract is signed, and thereafter in years. If the time period is too long, there will be more refunds and less compensation. ?Of course, this money does not really need to be paid by Torch Group. The Committee of Science and Industry provided a special fund for the Friendship Plan to pay for these expenses, and Chang Haonan only acted as a middleman that both parties trusted and were familiar with. As for the advance payment of 5 million US dollars, it is naturally not exactly what is written on the surface. Instead, it includes the freight paid by Wu Yifan to transport a batch of "mysterious goods" into the Balkans, which accounts for about five percent of it. one part. Throughout the Spring Festival holiday, Dianke Group has been working overtime to produce this batch of electronic components, and it was not until yesterday that the quality inspection was finally completed. ??Originally, the Air Force''s intention was to let it bring a batch of 57mm and 100mm anti-aircraft artillery shells that were about to expire. It was supposed to support the brothers in the third world in resisting hegemony, and by the way, it could save money on destroying them in two years. However, these two kinds of ammunition can be said to be everywhere in Southeast Europe. It is too abstract to take the trouble to fly them from China and then take the risk to send them to the Balkans. Moreover, when explosives are involved, the risks and shipping costs will increase exponentially. In the end, Chang Haonan still Rejected the offer. However, these contents are all conditions reached in private and will not be directly reflected in the content of the agreement. Its a pleasure to work with. After the signing was completed without a press conference or flashing lights, Wu Yifan stood up and exchanged the agreement documents with Chang Haonan, and then shook hands: I didnt expect that the biggest order Ive ever made since I entered the industry was with you, Brother Nan. ?Chang Haonan took the folder and handed it to Song Jingming next to him, indicating to the latter to archive it. After there were only two people left in the conference room, he spoke: "Old Wu, it''s better to recruit people in a short supply than in a hurry, and we''re not in a hurry. It''s enough that the first batch can arrive in China before the end of this year, but the batch of goods I asked you to transport must be transported to the destination before mid-March. " In addition, we should try to obscure our identity as much as possible during the whole process. It is best to use hints and other means to make the other side mistakenly think that it is the work of the Russians. ?Wu Yifan''s expression became serious. After all, this is also the first time he has done such an exciting job of transporting military supplies to a quasi-war zone: "The latter step is not difficult. The reason why the Russians came to me before was because I had done business several times with the officer in charge of reception at the destination, and we were considered acquaintances. As long as I didn''t say anything, he would definitely assume that I was Got the order from Moscow. But before mid-March He looked at the perpetual calendar hanging next to him with some embarrassment: "Brother Nan, it''s already the end of February, and you also know... Okay, you probably don''t know... But for smuggling, for the sake of cost-effectiveness, we wait until the day when the person we cooperate with is on duty before going through customs, but this I can''t predict the timetable in detail, plus I have to pass through a third country..." Halfway through speaking, Chang Haonan interrupted him with a wave of his hand: We paid millions of dollars, but we dont ask you to pay attention to cost-effectiveness. In this matter, safety and efficiency are the top priorities. If the funds spent in the middle are too much, we can make up for it later. ?In the original timeline, the start date of the Allied Forces Operation was March 24, but Chang Haonan could not guarantee whether the details would change in this life, and there was still time to prepare, so it was indeed a bit rushed. ?However, Wu Yifan still shook his head: Its not all about the money. I know what you mean is that we are worried that we will move too slowly and be unable to send them in before the conflict breaks out, but just because the situation in that area is tense now, we dont want to make too much noise. On the surface, what we are transporting is just a batch of electronic components. We bribe a few grassroots officers and veterans. They dont care what they are sent for. We just make the money and thats it. "But if you contact the person in charge with a higher level in a big way, they will have more things to consider. At this juncture, even relying on money alone may not be enough. After all, tens of thousands of yuan were spent in bribes to smuggle a batch of electronic products. No matter how you look at it, there are big problems inside. Chang Haonan has been a law-abiding citizen his whole life, and he really doesnt know as much about these things as Wu Yifan. But if this batch of things is still on the road when the conflict breaks out, it will be completely wasted. Looking at Chang Haonan who looked troubled, Wu Yifan gritted his teeth: "Okay, Brother Nan, I can take an airlift. The airspace in those countries is basically undefended at the moment. If we get a transport plane to fly lower and bribe the management of a semi-abandoned airport on the border, we can save the time." It saves about three or four days of the hassle of customs clearance by land, but..." Do I need to pay more? Chang Haonan asked. Its not...uh...well, its more money, but its not the kind of money you think. ?Wu Yifan got a little distracted, and after a while he continued: "Your shipment, including the protective packaging, weighs almost 4 tons. It can''t be pulled by a small plane. I have to build a serious transport plane, but I probably won''t need this thing in the future, so after it''s done, Either you or the organization can help, but we have to buy this plane. Of course the price wont be very high. The Ermao Air Force subcontracts normal aircraft and scrapped aircraft and resells them. Its about one to two million US dollars. This is not a lot of money. Whats more, we can get another plane back. The only problem is that unless this aircraft is an Il-76, other models will just be thrown into the dust even if it is brought back. But even based on the price of scrapped aircraft, the one that can be bought for one to two million US dollars is definitely not a strategic transport aircraft like the IL-76. Lets do this, Lao Wu. After thinking for a moment, Chang Haonan raised his head and said: "The money to buy this plane, like the freight, will come from the funds of the Friendship Plan according to the agreement just now." But dont bother bringing this aircraft back to China. Just leave it with Ermao. You can just maintain it from time to time. I guess jobs like this will happen again in the future. Just treat it as an investment in the future. ?Wu Yifan took a deep breath. He felt as if he was tied to a pirate ship by Chang Haonan... But the matter has come to this, and there is no turning back. And its really fast to make money on this pirate ship Okay, lets do it! One week later. An airport covered with snow in Satu Mare County, Romania. A convoy of five Ural trucks is lined up and parked on the grass next to the runway. ?The cargo box of each truck is covered with a tarpaulin. Judging from the compressed distance between the rear wheel and the wheel hub, it should be in an unloaded state. ?This airport, which is now somewhat dilapidated and desolate, was built more than ten years ago when the Warsaw Pact was still in place. The primary purpose is of course war preparedness, but there are also considerations to improve transportation and commuting convenience in border mountainous areas. Therefore, a large amount of manpower and material resources are devoted to maintenance every year. But after entering the 1990s, due to well-known reasons, infrastructure maintenance in remote areas basically stopped. ?After ten years, the airport''s infrastructure has basically stopped functioning, with only a few basic staff remaining. ?However, for people like Wu Yifan and others who run the "cross-border transportation" business, it is actually a good thing. It only cost him a total of tens of thousands of dollars to get the airport director to agree to provide them with a runway and refueling services. ? Its just that the airport radar has long been broken and there are not enough manpower, so they cannot provide guidance during the landing process, and they have to do the loading and unloading themselves. Angkor, its been 10 minutes since the estimated time, why hasnt the plane disappeared yet? In the cab of the first truck, Yan Yong, Wu Yifans deputy and the driver of the first truck, raised his hand and looked at his watch, looking slightly anxious. The two have known each other since childhood. When Wu Yifan graduated and went abroad to pursue his career, Yan Yong was with him. He is also the only one of the five drivers who knows the specific route and schedule. ?However, we dont know anything about the specific goods being transported or the shipper. Dont panic, after all, we have to fly nearly 400 kilometers, and its all at low altitude, so the timing cant be so accurate. Actually, Lao Wu in the co-pilot''s seat was also a little impatient. ??He was not afraid that the pilot would run away with the plane, but he was worried that flying at ultra-low altitude in the mountainous areas would easily lead to a direct crash if something malfunctioned or got lost... But in front of his subordinates, he still had to show that he had everything under control. ?So in order to divert my attention, I had to turn on the radio in the car and adjust the **** to try to find a channel that I could listen to. The USS Theodore Roosevelt is reported to have approached the Adriatic Sea, putting pressure on... and the EU... issued an ultimatum..." ??The signal in the mountainous area is really average, and Wu Yifan''s Romanian and Russian are both weak, so he can basically only get a rough idea. But its enough to get useful information. Speaking of Angkor, the Balkans are not peaceful recently. We are going there to transport things at this time, so we wont be trapped in it, right? Go and come back quickly, no. ??Wu Yifan shook his head, his tone decisive. ?He knew that he must not show any hesitation, otherwise others might not dare to make this trip. I dont know who it is, but at this juncture its still..." Just as Yan Yong opened his mouth, he was interrupted by an increasingly loud roar. ??Wu Yifan turned off the radio, stuck his head out of the side window, and looked at the northern sky with his telescope. A strange aircraft with engines mounted on the wings was aiming at the runway, extending its landing gear, and gradually descending. It was the An-72 transport plane that Wu Yifan urgently purchased from the Ermao Air Force. He originally planned to buy an An-24 or An-26 to solve the problem, but the maximum payload of these two models is only about 5 tons, and the age of the aircraft is generally upwards of 20 years. The risk of low-altitude flying with large loads is really a bit high. high. Thats why we finally made a big one. The good thing is that there are only a few of this aircraft in the world and its features are so distinctive that you dont have to worry about making mistakes. ??Wu Yifan picked up the walkie-talkie placed next to him, opened the door and jumped out of the cab: Everyone get out of the car and get ready to load! Brothers who havent joined the group yet, remember to look at the bottom of the book details and add the group. In case there are chapters or extras that really cannot pass the review, they will be posted in the group (End of this chapter) Chapter 681 Mysterious radar components Chapter 681 Mysterious Radar Components ?This An-72, which was still painted with the Soviet Air Force livery, started to slow down gradually after bouncing on the runway for a few times because the descent rate was too high. Wu Yifan was terrified when he saw it. This is not the first time he has "cooperated" with people at this airport. ?However, in the past, small aircraft such as Cessna were used to transport small-volume, high-value materials. Or more often, they take people across the border illegally. This is the first time in several years to serve such a large medium-sized transport aircraft. Angkor, is this pilot you hired okay? Yan Yong, who had never seen a military transport plane landing before, was so frightened that he subconsciously took a step back, probably because he was worried that the plane would overrun the runway: If you drop the goods from the previous store, according to the rules, we have to pay three times the compensation..." ??Wu Yifan Xin said that if this batch of goods is dropped, it will not only be a matter of triple compensation. Brother, I am afraid that I will be directly upgraded to a historical sinner, and I will not have the shame to return to the country to see Brother Nan in the future. ?Of course, he still had a determined tone: Of course its reliable. The test pilot instructors we hired from Antonov Company are better than the test pilots, you know? You dont have to look at how difficult it is to land on this broken runway. Its full of cracks and a section is broken in the middle. It can only be used at half its length. Its good to have it finished like this..." Fortunately, the entire landing process was uneventful, and the plane finally taxied smoothly to the trucks that had been prepared. Yan Yong looked at the cargo door that was slowly opening not far away, took out a pair of gloves from the car and put them on, but he didn''t stop talking: That will cost a lot of money, right? Its okay. ?Wu Yifan replied noncommittally: I have contacted the country before. We have not designed many large aircraft in the past, so we are now in urgent need of this type of test pilots. "When this business is over, I plan to put this person on the first batch of labor dispatch lists and send him back, and earn another intermediary fee. Every time he comes back, it will basically be a period of time in vain." As a close confidant of Wu Yifan, Yan Yong did not know the ins and outs of the friendship plan, but he still knew about Wu Yifans labor dispatch to the country. At the moment, he just felt that the other party was a natural-chosen capitalist: Fuck... Angkor, you wont sell me someday and ask me to help you count the money, right? "If you''re afraid of being sold, work hard. Remember not to speak Chinese in front of outsiders later. Just pretend that we are Buryat Mongolians from Siberia. We can''t speak Russian very well. Do you understand? " In addition to Yan Yong, the convoy included car soldiers and guards temporarily hired from several different armies of Ermao and Sanmao, as well as an officer from the Serb side who came over to pick up the vehicle and **** it. They did not know each other at all. Nor will they know the true background of Wu Yifan. In fact, although the latter looked burly in school, they were generally fair and fair. ??Its just that after two years of hard work, I have become a bit like a nomad. He was a little uncomfortable at first, but soon realized it was a good disguise. ?In a business like smuggling, it was impossible for anyone to inquire into the matter without opening their eyes, so he simply said nothing and was happy for others to misunderstand him. Even if someone sees that he is not a pure Buryat, he will usually go to Central Asia. "OK" Yan Yong has seamlessly switched to Russian with a slight accent. After speaking, he trotted forward to inspect the goods. Nicholai! ??Wu Yifan naturally did not need to take action himself, he just shouted in the distance at the top of his voice. ??A tall man who looked like he was a soldier at first glance came speeding from the side of the last truck in the distance. Zhamusu, is all the cargo on this plane? Nicholas Barsac, the officer sent by the recipient to receive the shipment. ??It is also one of the acquaintances that Lao Wu mentioned to Chang Haonan before, who did business with him in the Balkans. ?However, the so-called "acquaintances" who do this kind of business are definitely different from acquaintances in the general sense. ??So Wu Yifan has always contacted the other party under the pseudonym of "Zhamusu", and he has never even missed his real name. ?Of course, the other side must also know it. Just tacitly aware of it. As long as you know that the other party has what you need and a trustworthy channel, it is enough. Yes, its all on the plane, lets go and take a look. ??Wu Yifan tightened his untitled Soviet military coat to prevent the AKS74U he was carrying behind his back from being accidentally exposed. In the cargo hold of the An72, which is not very spacious, there are probably hundreds of crates that look ordinary on the surface. In fact, there are not many components that really need to be transported, but even if he has cleared all the key checkpoints along the way, he still has to do some superficial work. So quite a few of them are real computer accessories. An airport official was standing next to the tail hatch, pretending to inspect the goods with Yan Yong. It seemed that he was preparing to issue a customs inspection form - with this thing, this batch of goods would be considered whitewashed in Romania. You found a special plane to transport cargo, but there are ten boxes of CDs inside? Looking at the customs declaration information in his hand, the airport official asked a little nervously even though he had already collected the money. Yan Yong actually didn''t know what was inside, but he knew that this kind of low-level brat only wanted to collect money, and he wouldn''t care about you even if you were transporting nuclear bombs. He was probably just out of curiosity when he asked, so he just kept saying it. Nonsense: WellI prefer watching movies "oh" Unexpectedly, the other party actually showed an expression of realization: You want to transport that kind of film to the west, right? What kind of movie? Yan Yong looked confused, but he still swallowed the words and nodded with an expression of "I understand everything and don''t need to explain". ?Fortunately, for the sake of money, the other party did not continue to inquire further. He simply stamped a few stamps on the checklist and left. ?Wu Yifan, who heard this conversation nearby, paused, feeling that his reputation might be harmed. Since the 1990s, countries such as Ermao, Romania, and Czechoslovakia have almost become hotbeds of various underground industries. ??He is probably regarded as a pimp who makes underground **** videos and may also be involved in human trafficking. ?However, it cannot be considered a bad thing at this time. So he just shook his head and took Nicholas into the cargo hold. The second digit of the goods number is 3, 5, or 9. It contains what you need. The rest is a gift from me. According to Lao Wu''s guidance, Nicholas opened several boxes in succession. As an officer who has worked at the air force base for a long time, he naturally quickly recognized what the equipment inside was protected by special packaging. No wonder these goods have to be shipped to you specially. They are really different from the batches I received before Nicholas carefully picked up a traveling wave tube amplifier and looked at the calibration on it at the light from the cabin door. It''s all in Russian. Sent from Moscow? Of course he can understand Russian: The specifications are so good? Well...it is indeed sent from the east. ?Wu Yifan gave an ambiguous answer, which cant be considered a lie: I heard that it is the latest product that can increase the radars detection capability several times, but I dont know much about the technical issues. Nicholas feels that the craftsmanship of this thing does not look like Russian craftsmanship, but after all, it has been so many years since the disintegration, and maybe capitalism does have merit... And there are instructions? He turned around and opened another box and found that it contained documents stacked together and sealed with brown paper. ?Wu Yifan nodded: Thats because, after all, the Yankees are powerful now, and no one dares to send people directly to you like they did in Annan, so thats all we can do. If you act quickly, you should have enough time to learn. Nicholas bent down, simply took out a few of them and flipped through them: P18 radar modification Multi-point passive positioning radar operation manual The firing tables of the -19 anti-aircraft gun and the -60 anti-aircraft gun...wait a minute, the anti-aircraft gun firing tables are so thick? ?This time he couldn''t hold it back and flipped through the two documents. Then I found that the shooting elements corresponding to targets with different speeds, directions and heights were even written in it. Nicholas suddenly felt that these things seemed a bit too detailed. "never mind." He shook his head, straightened up again, closed the cover of the cargo box, and turned to Wu Yifan behind him: Zhamusu, I dont know if we will have a chance to meet again in the future. However, thank the person who brought this shipment over for me. (End of this chapter) Chapter 682 Stealing Japanese business Chapter 682 Stealing Japanese business Hearing what the other party meant, Wu Yifan seemed to be a little suspicious of the source of the goods. ?Of course, he is confident that it is definitely not a problem with his acting skills. Before returning to Eastern Europe this time, Chang Haonan, as one of the core executors of the entire plan, also picked out some tellable parts and informed Wu Yifan, so the latter also knew that the items he was transporting this time were actually radar components produced by China. From this, it is not difficult to speculate that there may be some flaws in the details of this batch of goods. After all, superficial places such as packaging, logos and instructions can be disguised as Russian, but things like the production process cannot be changed. ? ? Nikolai is a professional who has been exposed to Soviet-made equipment for a long time, so it is normal to see some tricks. ?However, Wu Yifan also knew that the Russians actually had nothing to do with the Balkans for a long time, otherwise they would not have found them as smugglers to transport goods. After so many years, it makes sense that the process has changed. So the other party is just doubtful at best now. The key is that we must not admit it at this time, we must bite the bullet and say that this thing was sent by the Russians. So, he shook his head: I will bring you a message of thanks, but now that its over, Ill tell you clearly. Although it is no longer the Cold War, and Moscow cannot directly provide military support, the people from the Federal Security Service made the rounds before I came here. "oh?" Nicholas, who was about to leave the cargo hold next to him, did have some doubts, but after hearing Wu Yifans words, he suppressed them: How to say? ??In fact, Wu Yifan didn''t have any background. He had only met a few Federal Security Service officers who came to him for help. Moreover, even if the other party really had any ideas, it was impossible for him to talk to him as a smuggler. But we have already talked about this, so we can only bite the bullet and continue to make up. However, his attention to the international situation over the years has been limited to the parts related to his own business, and his understanding of further places is really limited... Fortunately, in a hurry, I still remembered something - Before leaving China, when Chang Haonan sent him to the plane, the two of them also talked about the situation in the Balkans. ??Now I have to say it through the mouth of the Federal Security Service. They believe that although military conflict is basically inevitable, the other party is also divided into several interest groups. Now it seems that they have the same goal just because everything is going smoothly. "As long as you can cause some symbolic losses to the invading enemy, there may not be a way to break the situation..." ? halfway through Wu Yifans words, he couldnt help but recall a movie he had watched before. He originally wanted to say, If you hold on firmly, there will be a way. ??But first of all, I dont know how to translate these eight words into Russian honestly and elegantly. Secondly, the ending for people who hear this sentence is not so wonderful. The meaning is really not good... Finally had to give up. Fortunately, Nicholas on the opposite side had no way of knowing Wu Yifan''s ups and downs of thinking just now. He could only see from the surface that the latter was coping with it easily, and the topic he was talking about was related to his country. He had already put aside his doubts just now. Gone to the back of my head. Well...it sounds simple, but in fact its not that easy... ??Nicholas sighed, shook his head and said: The equipment we have is basically still at the level of the 1970s. It has not been seriously updated since more than ten years ago, and the training over the years has also been neglected a lot..." More importantly, there is also the issue of internal separatism. In the past few years, they have attacked us and they have used the excuse of protecting human rights..." All we can say is, lets do our best... ??Wu Yifan said that this group of people was just to dispel Nikolai''s suspicion. Now that the goal has been achieved, he naturally would not follow along with emo, so he immediately patted the other party''s shoulder: Everything depends on people, there will always be a way. Then he pointed to the crates around him: "Let''s unload the goods first. Anyway, after these things are transported, the chance of winning will be better." After saying that, he turned around and walked outside the cabin. Zhamusu, where are you going? I have to report the news back. If the goods can successfully enter Romania, it is basically equivalent to completing 90% of the journey..." Wu Yifan did not look back. In a place like this, the only way to deliver messages is by satellite phone. At this time, commercial communication satellites are basically American, so it is naturally impossible to directly talk to Chang Haonan who is in China - even if the two of them talk in secret words, in many cases the act of "making a phone call" can explain a lot of things. . So he first contacted his partners in Ermao by phone, and then the latter contacted the Chinese side. ?Of course, the specific content is still a secret word, and even his partner is not fully aware of it... Generally speaking, the speed and reliability of message delivery are negatively correlated. So, when the news that the shipment had successfully arrived in Romania reached Chang Haonan, it was already early the next morning in China time. ?This also made him feel relieved that he had been worried about the past few days. After all, there are still risks in using a transport plane to fly at ultra-low altitude in mountainous areas and cross the border between the two countries. ?This news was transmitted directly from the Black Sea Import and Export Trading Company to the Torch Group. On the surface, it was just ordinary content such as project progress and reports. So there is currently only one person in the country who knows about it, Chang Haonan. After breathing a long sigh of relief, Chang Haonan picked up the phone and dialed the number of Song Jingmings office: Director Song, please check for me to see if I have any important plans this morning. When he was an engineer before he was reborn, he sometimes watched TV series with Chang Jiayao, and often complained in his mind about how the bosses couldn''t even remember their schedules and had to ask their secretary to remind them. As a result, I am now my own boss ??It smells so good! When people do not need to sit in class or attend classes, their concepts of date and week are actually very vague. ?Chang Haonan is the one who stays up day and night, so the situation is even more serious. ??Now the TORC Multiphysics software has just been released. Although most of the work has been handed over to Song Jingming and Yang Huimei, there are always some important things that require the general manager himself to come forward. As a result, he found that he really needed someone to remind him of his daily schedule... UhMr. Chang, this morning, I had arranged to meet with representatives of the French GTT Company and the Hudong Shipbuilding Group. You said this was very important ?Chang Haonan raised his eyes and glanced at the perpetual calendar hanging on the wall, and also remembered this matter. He was originally planning to go to the Science and Technology Commission to inform Ding Gaoheng of the successful landing of the goods. ??Although it is enough to make an internal call, the latter accompanied the senior leader to Nanzheng some time ago, which was obviously related to the situation of domestic early warning aircraft. ?Chang Haonan also wanted to take this opportunity to stop by and ask about the specific situation. So its better to meet in person. ?Now that the two projects he is working on are coming to an end step by step, it is also time to consider longer-term plans. But meeting with GTT company representatives is indeed an important matter. ?This company holds the core patent for the membrane cargo tank of LNG carriers, which has great advantages over the independent tank technology developed by MossRosenberg in Norway. ?In his last life until he was reborn, no matter who it was, anyone who wanted to build an LNG ship could not completely avoid this company. Nowadays, GTT Company is in a stage of rapid development and has not yet reached the stage of monopoly. This time it comes to cooperate with Torch Group, which is obviously an excellent opportunity for the latter. As for the reason for coming here... Chang Haonan certainly has no way of knowing the details, but generally speaking, he should be looking for a new partner. In the 1990s, China''s shipbuilding industry had not yet developed much. The worlds shipbuilding tonnage is basically evenly divided between Japan and South Korea. Of course, as of 1999, Japan still had some advantages. Of course, Party A who places an order also knows that eggs cannot be put in the same basket. Whether it is to avoid risks or improve bargaining power, they will basically choose a Japanese shipyard and a Korean shipyard as point AB suppliers respectively. ?Originally, this situation was going to last until about 2010, when China gradually replaced Japan and became the new shipbuilding duo with South Korea. ?However, this time, because of the huge quality fraud scandal that broke out in the Japanese manufacturing industry last year, especially the behavior of NTN and Chunakajima Special Steel directly purchasing finished products from China and then selling them under brand names, the situation has changed in advance. ?In this wave, companies like GTT have obviously begun to consider whether to transfer the eggs originally placed in the Japanese basket to China. (End of this chapter) Chapter 683 LNG ships, the dispute between China and South Korea Chapter 683 LNG ships, dispute between China and South Korea After some tangle, Chang Haonan decided not to change the original schedule. After all, going to the Science and Technology Commission is almost like going home to him now Go home, you can go back anytime. ??And judging from the current situation, the start date of the Allied Forces Operation is not expected to change much compared to March 24 in the previous life, which is still less than half a month away. He was in China, and there was really nothing he could do except wait. So its not that important to inform Ding Gaoheng half a day early or half a day late. As for the early warning aircraft, there is no urgency... No matter how fast the Turbofan 10 is, it will take until the new century to complete the finalization process. The die forging press is about to enter the final stage. However, this kind of giant equipment does not mean everything will be fine once it is built and delivered. At least the initial trial production stage still requires technical support from their project team... In short, you still have to take care of the things in front of you first... Since his rebirth, the foreigners Chang Haonan has interacted with the most seem to be French and Italians. ?The team sent by GTT Company is also very different from the previous European companies. The two team leaders, although not explicitly introduced, it is obvious that one is responsible for management and the other is responsible for technology, named Eric Michalski and Karim Shapo respectively. As for the Hudong Shipyard on the Chinese side, in fact, strictly speaking, it cannot be regarded as a separate party. They came here with the GTT team as cooperative members. ?This is normal. In the partnership to build LNG ships, shipyards are basically in a relatively weak position. After all, although there are certain technical barriers to the "ship"-related parts of LNG ships, in general, the "LNG"-related parts are more difficult. ?Especially because Hudong Shipyard is still not well-known internationally, it is actually quite lucky to be included as a candidate by GTT. And this is largely due to the assist last year. Originally, Chang Haonan was quite looking forward to this meeting. But after I actually started, I found that the content proposed on the other side was a bit boring. Basically, I am planning to purchase the TORC Multiphysics software and hope that Torch Group can provide some technical support in checking the structural strength of LNG ships under ultra-low temperature. It can be considered a very practical project. But the problem is that these two things are already very mature businesses for Torch Group. Just make a phone call or go to the official website to place an order. Even if you are worried about something unclear, just send a few people to explain it and that will be it. ?There seems to be no reason to make such a big fuss and send a large delegation of more than 20 people to chat with him for a long time. ? Chang Haonan originally planned to promote the Sugon 2000T supercomputer and the special version of TORCH Multiphysics, but in the end he gave up due to concerns. ?However, after ending the meeting with some doubts, he quickly received another call from Song Jingming. Mr. Chang, a comrade named Cai Honggui has a letter of introduction from Hudong Shipyard, saying that he is one of the members of the delegation that just participated in the talks and wants to have a private interview with you. Chang Haonan briefly recalled it, and remembered that there was indeed such a person just now, but he was sitting at the end of the opposite side and did not speak during the whole process. The reason why he can be remembered is because this person has a big-shot hairstyle. The reflective kind. Okay, let him come to my office. He had planned to change his clothes and go directly to the Science and Technology Committee, but now he had to put on his suit jacket again. A few minutes later, the bald man appeared outside the office and knocked on the door cautiously. "Is this Comrade Cai Honggui? Come in quickly." Hearing Chang Haonan''s greeting, the visitor quickly walked into the house. Hello, Mr. Chang. The two shook hands. Sit down. Chang Haonan reached out and gestured to the chair in front of the desk, motioning for the other party to sit down, and then gave the two of them a glass of mineral water: Come to me alone. Is there anything you cant talk about at the meeting just now? In fact, at the beginning, he was somewhat reluctant to let go when facing subordinates who were older than himself, or even one generation above him. However, after two years of training, he has adapted very naturally. ??Cai Honggui took the cup with both hands. Seeing that Chang Haonan had already made a guess, he didn''t go around in circles anymore, but nodded directly: Thats right, its about LNG ships. During the meeting just now, you should have noticed that GTT Company was not very enthusiastic. At least compared to the size of the delegation they sent, the topic setting was a bit too bland. Chang Haonan certainly noticed it, but the other party had not yet explained his intention. He certainly could not show too obvious an attitude in advance, so he just acted noncommittally and signaled the other party to continue talking. Actually, when this group of people first arrived in China at the end of last month, the situation was not like this Cai Honggui could not see what Chang Haonan was thinking, so he had no choice but to continue: "The membrane cargo tank developed by GTT Group is currently the first generation product that is mainly put into use. It is mainly built by Japan and South Korea. Our factory has also introduced relevant patents before and produced two small and medium-sized membrane LNG ships. , but basically unable to capture market share. "Now because of what happened last year, GTT feels that Japanese shipyards may not be reliable in the long run, so they want to include our Chinese shipyards in the sequence of certified shipyards. However, for the first generation of products, they have already followed Japan and South Korea are too deeply tied to each other, making it difficult to separate their businesses, so the main consideration is the next-generation technology that will be updated soon. On the second generation of membrane cargo tanks, GTT is currently developing two parallel routes, namely the Gas-Transport system and the Technigaz system. The difference between them cannot be explained in a few words, mainly in the insulation and leakage prevention of the inner wall of the cargo tank. The technical routes are different. "South Korea''s Samsung Heavy Industries has manufactured a large number of first-generation products, so it is natural to bet on the Technigaz system. The inner wall of the cargo hold of this system is made of corrugated composite panels. It has advantages in cost, volume and weight, but it is very difficult to build, and we Due to technical limitations, we still choose to work on the relatively traditional Gas-Transport system. Although more invar steel plates will be used, fortunately, the inner and outer layers have complete load-bearing and shielding structures..." ?This Cai Honggui obviously also has a technical background. After talking about topics related to shipbuilding technology, the initial nervousness quickly disappeared. "Originally, because the Technigaz system had some problems with the adaptability of the cargo hold and the ship itself, GTT has recently become more optimistic about the Gas-Transport system and is planning to give our factory two orders to test the waters first. If there are no problems, we will start Mass production of LNG ships equipped with Gas-Transport systems. But just a few days ago, Samsung Heavy Industries suddenly announced that they had solved the cabin adaptation problem, so GTTs attention has returned to the Technigaz system Chang Haonan had not had an in-depth understanding of the situation of the shipbuilding industry before, so after the other party finished speaking, he still thought about it for a while. ?However, the overall plot is still very clear. Since the Technigaz system is superior in terms of cost, volume and weight, GTT will naturally not continue to invest too many resources in the Gas-Transport system. ?This is also consistent with their performance in the talks just now. ? It only purchases development tools and numerical calculation business from Torch Group, rather than joint development among the three parties. You must know that although GTT holds the core technology of LNG cargo tanks, it is impossible to build a ship with just a cargo tank. If it really wants to be implemented on LNG ships, it still needs to cooperate with the shipyard. ?Of course, considering that the shipyard itself may not have enough R&D capabilities, sometimes a third party such as Torch Group is required to join. Now that GTT has directly given up on joint development with China, it basically has the idea of ??"using the Gas-Transport system as a backup" written on its face. So, what Manager Cai means is... "Our factory has purchased most of the core patents of the Gas-Transport system. Now that GTT is not very enthusiastic, I wonder if our factory and your company can directly cooperate to convert LNG using this technical route. Has the ship been developed?" (End of this chapter) Chapter 684 We really need a research team Chapter 684: We really need a research team ?If it is necessary to cooperate in development, even if the technology developed is shared by both parties, it certainly cannot be pushed to the Numerical Computing Business Department and then be done. ?Of course, in most cases, the same group of people will do the work in the end, but more attention must be paid to the reception specifications. You can''t just send out any salesperson. On the other hand, technological cooperation not only means sharing rights, but also means sharing responsibilities. Even taking into account the gap in R&D capabilities between the two companies, I am afraid that the gap on the Torch Group''s side is larger. So it is not like the numerical calculation business, where you can start work just by getting a list of requirements. Always know more about the actual situation. This is true even if the other party is an enterprise under the Science and Technology Commission system. Therefore, after much thought, Chang Haonan decided to take a slow approach first: "Manager Cai, you should also know that our company has not had an in-depth understanding of the shipbuilding industry in the past. It would be fine if we just took on some ordinary business. However, the technical cooperation between the two companies has a great impact, and we certainly cannot make arbitrary decisions. Therefore, I will take this matter Lets take a note for now, and we will send comrades from the office and technical department to have in-depth contact with you later, how about that? Cai Honggui originally discovered that the French GTT was no longer interested in the Gas-Transport system, so he came to Torch Group to see if there was a way to break the situation. Naturally, he knew that the other party was a company with Shanghai. It is impossible for a second-level state-owned enterprise on the same level as Dongchang to sign a contract with just a few words. Although the four major military industry corporations have completed the de-administrative reform (the aviation industry is still delayed for another year due to General Manager Chang''s operation), de-administrativeization is not de-organization, and it still needs to be governed and supervised by superiors. . In other words, doing business between state-owned enterprises is often more troublesome than between private enterprises. ??This time I was able to meet with Chang Haonan in person and explain the whole incident clearly, which was beyond expectations. I immediately nodded in agreement: Mr. Changs words are reasonable, and we really need to be cautious about technical cooperation. "After I go back this time, I will sort out the technical information related to the Gas-Transport system and LNG ship manufacturing, and then have someone send it over. In addition, if Mr. Chang wants to further inspect the situation of our factory, you are always welcome to visit us. guide" ?Compared with aviation manufacturing, except for some special products, such as nuclear submarines or floating nuclear power plants, ship manufacturing is relatively less sensitive. So when it comes to technology patents, protection in exchange for disclosure has indeed been achieved to a certain extent. Even if the Hudong factory does not proactively provide relevant information about the Gas-Transport system, if Chang Haonan wants to check it, he can find it with a little effort. Its just that it cannot be used for profit without purchasing authorization. ??Chai Honggui wants to give it now, but it doesn''t count as leaking business secrets. Of course, that''s what it says, but LNG ships are such complex system engineering. The words "relevant technical information" sound easy to say. In fact, if it were converted into a physical form, it would probably have to be loaded on a truck, and it would have to be four in front and four in the back. Eight kind. ?Now that the two sides have only had initial contact, it can indeed be seen that they are very sincere when others make such statements. After all, even public content has unique value after being systematically organized. Otherwise, there would be no such thing as open source network intelligence. You and I are on the same level in terms of organizational relationship, and we are not in the same system, so it is still out of the question to come and provide guidance. Chang Haonan has now passed the stage of feeling embarrassed or arrogant about this kind of blowing and patting. He immediately waved his hand and replied: In addition, my personal schedule has been tight in the past month or two, and I may ask the following technical backbones to make preliminary contacts, but we can wait until then to make specific decisions..." Anyway, I would like to thank Mr. Chang in advance and wish us smooth cooperation... Youre welcome ??Although he only received a verbal commitment from Chang Haonan, when Cai Honggui left, his whole spirit became different. Outside the Torch Group, a young man holding a windbreaker in his hand saw Cai Honggui coming out. He quickly stepped forward and put the coat on the latter. Master, what are you doing... When he just came out of the conference room, he saw that Cai Honggui looked like he had aged twenty years. However, after only half an hour or so, he seemed to be young again... I just had a conversation with Mr. Chang from Torch Group. With the help of his apprentice, Cai Honggui stuffed his arms into his sleeves and adjusted the collar of his coat. ? He ??was a welder in his early years. Due to long-term work in high-salt, high-humidity and low-temperature environments, his arthritis was quite severe. Especially in winter, it was difficult to wear a coat. After completing this series of actions, he took out his gloves from his pocket and put them on, and continued: Mr. Chang said that technicians will be sent to our factory to check the situation in a while. If there are no problems, you can consider working with us to continue the development of Gas-Transport system LNG ships! Really? The disciple next to him looked happy when he heard the news, but it only lasted for a moment, and soon returned to his worried look: But...even if the Gas-Transport system is completed, compared with the Technigaz system, loading the same volume of LNG requires a larger and heavier ship. It seems that it will still be difficult to compete with others..." ??Cai Honggui almost rolled his eyes when he heard this, raised his hand and wanted to hit his apprentice on the head: There is no way to achieve success in engineering in one go. Dont be too ambitious. If it werent for the quality problems that a group of Japanese companies had last year, we wouldnt even have a chance to join the game now. To be able to stand on the same track as others now is something that we people didnt dare to think about in the past. Why do you still feel dissatisfied? After all, the apprentice was young and had quick reactions. Cai Honggui didnt really mean to hit him, so he easily dodged it with a sideways jump. Then he covered his head and said to his master: I mean, can we also consider using the Technigaz system for shipbuilding? Cai Honggui''s face froze, he lowered his head and hesitated for a moment, then shook his head: GTT Company itself is not involved in the ship production business, so it is not difficult to buy the patent of the Technigaz system, as long as it costs money. "But the technical route of the cargo tank system is closely related to the structure, power and safety design of the entire ship. The Koreans came into contact with the Technigaz system several years before us, and now they have obtained many patents in these fields. If we change now If you pursue the technical route, you will definitely be restricted here..." Since everything was said to this extent, the disciple naturally understood it GTT Company will sell the cargo tank patent to Hudong Shipyard. This is because we are at different positions in the industrial chain and work together to make money. However, Samsung Shipbuilding and Hudong Shipbuilding are in the same ecological niche. Not to mention life and death, at least they are in a competitive relationship. It is simply impossible to license your key patents to your major competitors. Hence, the path of the Technigaz system is basically impossible for China, which has not taken the lead. "Then... we can only count on Torch Group to cooperate with us?" This can only be the case in a short period of time. To be fair, we have been accustomed to being a technology chaser in the past. In terms of core technology research and development, our level is indeed not as good as others..." "But...what if there is nothing good that the Torch can do? After all, they seem to have never been exposed to shipbuilding before..." "Well... that''s what I said, but I heard from my colleagues at the Hangzhou Tooth Factory that Mr. Chang had never been exposed to the machinery manufacturing industry before, but his first move was to take charge of Jiang Zhong''s 70,000-ton forging press. It seems that there is little progress. It went very smoothly ?On the other side, after Chang Haonan sent Cai Honggui out, he picked up the phone and contacted Liu Hongbo. Professor Liu, do we still have any free manpower in our Numerical Computing Business Department? I have a shipbuilding business cooperation that we have not had contact with in the past. I need a few people to understand the situation..." He got straight to the point. I was stunned when I asked this question directly. After a long period of silence, Liu Hongbos bitter voice came from the other end of the phone: My junior leader, the orders for the Numerical Computing Business Department have been scheduled until March next year. We cant wait for one person to work as three people. How can we still have free manpower? And since it is a business that I have not been exposed to before, it should be handed over to the R&D department first. In principle, our business department only deals with the application level..." ?Chang Haonan thought about it carefully and felt that it seemed reasonable. He did let Liu Hongbo be in charge of the helicopter design business before, but that relied on Professor Liu''s personal ability. However, Torch Groups main business is program update and maintenance after all. The so-called R&D department is actually the original State Key Laboratory of Numerical Simulation and Data Analysis, which has not even changed its name to this day. At the moment, the official version of the TORC Multiphysics software has just been released. The lights are on in the office there 24 hours a day. He doesnt even need to make a phone call. He knows that he is probably very busy... Chang Haonan suddenly felt that he might really need a research group of his own... (End of this chapter) Chapter 685 March 25, Operation "Allied Force" Chapter 685, March 25, Operation "Allied Forces" ?After his plan to go to the Science and Technology Commission to learn about the progress of the domestic early warning aircraft was delayed by the unexpected arrival of Cai Honggui, Chang Haonan simply stopped worrying. Just made a phone call to tell Ding Gaoheng that the goods had arrived in Romania, and then continued to deal with the matters at hand. Mainly negotiating with Eurocopter Group, Fiat Ferrari and several research institutes in Russia for the export of Dawn 2000T. After all, for China, selling supercomputer abroad is still the first time for a big girl to get on the sedan chair. In the past, when buying supercomputer, the other party''s contract was full of various unequal terms, which really had no reference value. So everything has to be explored from scratch. As for the Hudong Shipyard... At first, there is no rush yet. The shipbuilding industry is basically considered on a ten-year cycle. Even if there is an end, it will be shortened by 50% to five years at most. After all, no matter how strong the technological research and development level is, the ship must be built slowly starting from laying the keel. There is no point in being anxious. ??Torch Group is short of people, especially the lack of pioneering talents, which basically cannot be solved in a few months. Numerical computing is still an emerging discipline after all. ?Although in the past two or three years, Chang Haonan has almost single-handedly made this direction a popular postgraduate study. But it has only been less than two years since he compiled that textbook. Even if it is Beijing Hang University, which first launched this course, the first batch of students to take this course... Forget it, let alone students, Chang Haonan, as the editor of this book, will officially graduate in half a year. Others, even if they have a master''s degree, they have to wait another year, and for a doctorate, it takes at least three years. As for other universities, even the fastest-moving ones, are still one year behind Beijing Airlines. ??At present, most of the people with relatively high level in this direction have done projects with Chang Haonan. Currently, they are basically distributed in the two major systems of the aviation industry and the weapons industry. It is difficult for him to poach from Ding Gaoheng. Calculating it this way, it seems that the only ones who are capable of carrying this banner in a short period of time are the senior sisters who are about to graduate, and Professor Yan Yongnian, who have been involved in the development of the die forging press throughout the whole process... ?No matter who it is, if you want to come to work with him, you will have to wait until the second half of the year. As for the domestic early warning aircraft, he decided to wait for a while. March 25, morning. ?Chang Haonan specifically canceled all his schedule for today and arrived at the Science and Technology Commission early in the morning. After living in the same family area as Ding Gaoheng, he quickly learned that because his home was still far away from his work, Ding Gaoheng would live directly in a temporary dormitory next to the office when he was busier. in the room. This meeting at the end of March coincides with the upcoming conference, which is a time for continuous improvement. So, although Chang Haonan arrived a little early, when he walked into the director''s office, Ding Gaoheng was already sitting inside and starting to correct documents. Xiao Chang? Ding Gaoheng raised his head and was stunned when he saw Chang Haonan. He immediately stopped writing: Why are you free to come to my place so early today? Under normal circumstances, if outsiders want to see the director of the Tangtang Science and Technology Committee, they must make an appointment. But Chang Haonan can hardly be called an outsider now. At first, the doorman had to register visitors specifically. Later, he probably got instructions from Ding Gaoheng himself. Anyway, he can now directly enter and exit by swiping his face. ?So Ding Gaoheng didnt know that Chang Haonan would come over before. There is nothing going on at the group today. I happened to hear that you and the big boss went to Nanzheng for an inspection a while ago. I guess you went to Air Police 200, so I took advantage of today to ask the boss about his attitude..." The latter said as he put a thermos bucket on the desk: Aunt Nie asked me to bring her here along the way. "Hahaha" When Ding Gaoheng heard Chang Haonans intention, he burst into hearty laughter: I was thinking a few days ago that you should have heard the news a long time ago. Why havent you come to see me yet? You didnt mention it when I called you last time. But it turned out that you came today... Chang Haonanxin said that I had really wanted to know for a long time, but someone interrupted me the first time I wanted to come, so I just left it until today as a reason to come to the Science and Technology Commission. After all, judging from the current situation, his actions do not seem to be able to affect the situation in Europe thousands of kilometers away. The coalition still gave an ultimatum on the 19th, but the other side finally rejected it just like the previous life. ?March 25th, Beijing time, was the day when the "Allied Force" operation began in the original timeline. ?Of course, if things went exactly as they were, the air raid should have started a few hours now. However, in 1999, there was no media as developed as later generations. The coalition forces cut off network signals in the entire Balkans for a period of time. Coupled with the electromagnetic interference caused by the first wave of attacks... In short, there is usually a lag in getting news in the country. time. ??Furthermore, after all, the Science and Technology Commission is not a foreign affairs and military command body, and Ding Gaoheng is not one of the State Committee, so the order of notification must be later. Therefore, Chang Haonans trip was to witness history with the other party. ?Of course, if nothing happens, then he can just pretend that he is really here to talk about domestic early warning aircraft... ?However, this idea can obviously only be buried in the heart, and another set of words must be used on the lips: I really wanted to come here before, but I just happened to catch up with the release of the official version of TORCH Multiphysics. Im so busy these days that I cant leave. As soon as I had free time today, I rushed here early in the morning... When a big leader inspects something, the statement he makes on the spot is usually just a formality. Especially if it involves a major decision, it is even less likely to make a hasty decision, so strictly speaking, nothing has been settled on this matter yet. Ding Gaoheng said as he tightened the cap of the pen and leaned his upper body back on the back of the chair: However, the chief himself also knows some technology. He asked very detailed questions on the early warning aircraft. If I had to look at it, I should be quite satisfied with it overall. "on the whole?" Chang Haonan asked with a raised eyebrow. Obviously, this statement means that the chief is still dissatisfied. Well... Mainly because I am not satisfied with the range and speed of that aircraft. After all, the foundation of the Y-8 Category III platform is really not good, even if the 182 Factory improves it, there is nothing that can be done. Chang Haonan has already had two meals at Ding Gaoheng''s house. Naturally, the latter did not regard him as an outsider and started eating breakfast in front of him: But dont worry, I have revealed what you told me before, the plan to use the C909 passenger aircraft as a platform to transform into a large early warning aircraft. Although this matter hasnt started yet, after all, radars and airplanes are already visible and tangible things, so they cant be regarded as invisible What about the ring project? ?What Chang Haonan is most concerned about is the attitude of his superiors towards the ring project. It is speculated that the actions of the Kingdom of David should be similar to those in the previous life. It is nothing more than resisting and welcoming, and using sunk costs to hang this side. To be honest, it is nothing more than some kind of enhanced version of PUA. But this kind of thing belongs to bystanders or even latecomers. If you are not mentally prepared in advance and you dont have many chips, it is still very easy to fall for the bait. Fortunately, we already have an early warning aircraft model that is about to make its first flight in this world, so it does not mean that we have no initiative at all. Originally, the superiors were still a little hesitant. Ding Gaoheng stopped his chopsticks, raised his head and replied: "But a few days ago, the Patriotic side started to act like a monster again. Not only did they refuse to install a radar dome for the first flight, they even sent guards to guard the Il-76 24 hours a day to prevent our technical personnel from getting close. Why worry about technology leakage..." int Chang Haonan almost laughed when he heard this: Now they are doing us a big favor... Ding Gaoheng also shook his head helplessly: Who says its not the case... When I reported this matter, the chief didnt say anything, but I guess... a decision will be made after this meeting. I just dont know if the 350 million yuan paid in advance can be successfully recovered... It shouldnt be a big problem to get the principal back. Chang Haonan continued casually: "Liquidated damages... This may depend on the situation. But in any case, it can make the superiors focus back on the domestic early warning aircraft instead of just using it as a backup project. This is much more important than the 350 million yuan." "yes" Ding Gaoheng nodded. Just as he was about to say something more, the red phone on the corner of the table rang. Chang Haonan''s face turned cold. Hello, Im Ding Gaoheng. Chang Haonan, who was sitting on the sofa next to him, naturally couldn''t hear the content on the phone, but from the tense expression on the other party''s face, it was not difficult to guess what was on the phone. After a while, Ding Gaohengs chest moved slightly, obviously taking a deep breath: Okay, I get it. After saying that, he hung up the phone. Director Ding, this is... ?Chang Haonan naturally had to pretend. For Ding Gaoheng, the news on the phone was unexpected and reasonable. After all, they had started preparing for this a long time ago and must have expected that such a day would come. But when the news actually came, shock was inevitable. After calming down a little, Ding Gaoheng raised his head again and looked at Chang Haonan: The coalition launched a combat operation code-named Allied Force early this morning. (End of this chapter) Chapter 686 fallen nighthawk Chapter 686 The Falling Nighthawk In the next few days, Chang Haonan paid close attention to the situation of the Allied operations. On the one hand, it was to make up for his regret of not being able to follow this event from the beginning in his previous life, and on the other hand, it was to determine whether several landmark events in his impression would still happen. ?It''s a pity that the Torch Group is not a real intelligence agency after all. In addition, Chang Haonan only goes to the Science and Technology Commission once every morning at most and cannot stay there 24 hours a day. Therefore, the main means of obtaining information are newspapers and TV news. ?But this is almost enough for him who roughly knows the ins and outs... Three days later, March 28. ?Chang Haonan came to the conference room on the top floor of the Science and Technology Commission as usual. Although the business of the Science and Technology Commission is not directly related to this incident, as the department in charge of the development of the defense industry, it is always reasonable to track front-line military equipment information, and the United States is obviously the country with the highest level of military equipment in the world today. , so Ding Gaoheng used this excuse to organize a routine briefing every morning. ?Of course, the content of the briefing can only be obtained from the General Staff Intelligence Bureau, so the timeliness will be delayed by several hours. Nearly 72 hours have passed since the Allied operation began on March 25. Although air strikes are ineffective against ground units other than fixed targets such as airport warehouses due to sufficient camouflage and dispersion, overall, the situation is still undoubtedly developing towards a one-sided situation. ?It is one thing to be able to resist for three days, it is another thing to be able to resist for thirty days. Moreover, if the situation continues to develop, it may not be able to be stopped even for thirty days... ?In addition, because it was an undeclared war, media, reporters and even official agencies in many countries did not evacuate, resulting in many scenes being presented to the world in an almost "live broadcast" manner. And what Chang Haonan and the others saw was a completely unedited version... In short, these days, the atmosphere at the briefings of the Committee of Science and Industry is still quite heavy. ?But today, as soon as Chang Haonan entered the door, he felt that it was different from before. Xiao Chang, lets take a look at the contents of this report. Before he could sit down, Ding Gaoheng handed over a document. Chang Haonan already had a premonition when he saw this posture, but he still quickly opened the folder. The Americans lost an F117? ?This incident was a thunderous one in the previous life, but Chang Haonan was actually not sure exactly what day it happened. I have been paying attention to the news these days, and I am waiting for this time. Is the news...reliable? Out of the professionalism of an actor, he deliberately looked dumbfounded and looked at Ding Gaoheng next to him. You will know when you look back, our frontline personnel captured quite strong image evidence. The latter replied. ?Chang Haonan lowered his head again and turned the report to the back. As expected, he saw several slightly blurry but continuous pictures. In the night sky, as an explosion of bright light flashed, something burning slowly began to fall. ?Although the distance was not close, one could still tell through the firelight that it was a slightly strange-shaped aircraft. Im going to ?His surprise just now was just for show, but now it has become real. It seems that there was no such set of photos on the original timeline... Obviously, although the general direction of the event has remained the same, some details have changed. What Chang Haonan knows better is that after a while, maybe the whole world will completely enter another story line because of him... Xiao Chang shouldnt be so surprised, right? Huai Guomo, who was sitting on the sofa next to him, turned his head and asked with a smile: After all, we have helped in this matter. According to previous tests in China, the multi-point passive detection radars ability to detect low RCS targets is indeed much better than ordinary passive radars..." ?Chang Haonan did not answer immediately, but lowered his head and thought for a while, and then answered with some hesitation: "This result... I think it has little to do with the technology we sent over." "Um?" A few doubtful looks were cast at him. After all, in the eyes of several other people, this can even be directly regarded as Chang Haonan''s achievement. ?The latter organized the language slightly, and then explained: Its only been a little over a week since Lao Wu delivered the goods to the customer. "When the 407 radar was modified by the 14th Institute of Electrical Engineering, it took nearly half a month with sufficient manpower and three shifts. The customer was the first to come into contact with this kind of thing, the P18 radar. The complexity of the radar is much higher than that of the 407 radar. In addition, we are directly in the hands of the troops there. The professionalism of the technical officers is definitely not as good as the experts of the Electronic Technology Group. There is absolutely no reason that it will take less than 10 days. The modification and debugging of the two radars have been completed. Hearing what Chang Haonan said, everyone felt that it made sense. But in this way, it seems that the joy that was mentioned just now has disappeared again... In that case, does that side already have the ability to deal with stealth aircraft? Ding Gaohengs expression is a little complicated: If thats the case, wouldnt it be wrong for us to go through this whole process... That wont happen. Chang Haonan looked at the anxious seniors around him and quickly shook his head: Theoretically, general stealth aircraft perform RCS optimization for centimeter-wave radars. VHF-band radars such as the P18 have the possibility of roughly detecting the target position. "In addition, the first phase of the air strike is coming to an end, and it is inevitable that the opponent will underestimate the enemy. I read the briefing content of the past two days and specifically wrote that the intensity of the opponent''s accompanying electronic interference is much lower than that of the first day. Taken together, the enemy is being underestimated. It is entirely possible for the air defense unit to miss it. Looking at these photos, it is obvious that it was shot down by an anti-aircraft missile..." However, after learning this lesson, it may be more difficult to use similar simple methods to achieve results, especially against stealth aircraft. Hearing what Chang Haonan said, the mood of the other people finally recovered a little. "In other words, our preparations may still be used later?" Its natural. Chang Haonan now feels more confident about this thing that never happened in his previous life: Its impossible for the opponent to stop fighting because of this setback. Wouldnt that be a big joke... They will only become more cautious. "I estimate that at the speed of our customers, it may take about half a month to complete the two radars. Let''s see by then..." (End of this chapter) Chapter 687 The euro collapsed Chapter 687 The Euro collapsed ?Nowadays, Chang Haonan''s statement, even if it is only verbal, is quite convincing to the Science and Technology Commission. So, after he said "wait half a month and see again", the other people basically accepted this statement naturally. However, in any case, Chang Haonan and Ding Gaoheng initially made the decision to "secretly help behind the scenes". Their original intention was to take advantage of the opportunity to kill the American spirit. It would be best if they could achieve some more iconic results and let the whole world know. The world steps out a little from each other''s shadow. This F117, no matter how it was damaged in the battle, must be of great use for this purpose. So, although the actual situation may be somewhat different from the original idea, the interest of several people in the conference room quickly returned to its original state. ?Perhaps for this reason, todays briefing did not end hastily, but entered the next stage. Dear leaders, since the beginning of Operation Allied Force, there is some information other than military intelligence that deserves more attention. While speaking, the new secretary who replaced Lan Xinzhi put a new piece of document paper on the projector, and a chart was instantly displayed on the big screen. The exchange rate of the euro against the U.S. dollar has fallen from 1:1.1800 to 1:1.0640 in the past three days, a drop of as much as 9.83%, and the decline has not yet stopped. The Peoples Bank of Chinas Foreign Exchange Administration estimates that if the EU cannot inject confidence into the market through some strong means, the euro may further fall below 1:1 against the US dollar in half a month. Looking at the shocking decline rate of the curve on the table, even those in the conference room who are not well-versed in finance can realize that the EU is likely to suffer a serious blow this time. As one of Europe''s major trading partners, China will obviously also be indirectly affected. It seems that Europeans will inevitably lose a piece of meat from this round of events Ding Gaoheng sighed: "Furthermore, since last year, the contracts we signed with several European countries have stated that transactions can be conducted through the euro. But now that the exchange rate of the euro is fluctuating like this, it is not good news for us to build euro foreign exchange reserves. ??If we only look at it from the perspective of a single buyer and seller, then the depreciation of the euro will be beneficial to Chinas imports but not conducive to Chinas exports. ??However, trade between countries, or even just the trade between enterprises affiliated to the Science and Technology Commission and Europe, is extremely complicated and cannot be summarized clearly in a simple sentence or two. But in general, for a new currency like the euro, and a new currency with symbolic significance for European integration, it is best for the exchange rate to remain relatively stable. ? Even a 10% increase in three days may not be a good thing, let alone a decrease now... We at Torch Group also encountered this problem Chang Haonan said in a helpless tone: "Recently, it is the peak period for the release of the official version of TORCH Multiphysics. Many of the orders signed before were paid in euros. There are also two Sugon 2000T and numerical calculation business sold, which may cost tens of millions. Payments in euros have now dropped by 10%, and will obviously continue to fall, which is also a big blow to our business..." The other people were not surprised by the ability of the Torch Group to attract money. After all, it is a monopoly business to a certain extent. But from our standpoint, we still have to let the euro hold on, even if there is some damage to our interests in the short term. Huai Guomo, who has been responsible for foreign project cooperation for a long time, knows relatively well about these things: The current U.S. dollar is too strong in the international market. Although the Japanese yen also occupies a certain share of settlement, it cannot be regarded as a completely independent currency. The ruble has almost become waste paper, and the RMB has no voice at all. So if we want to break the monopoly of the US dollar, we can only support the euro to fight against them for the time being. Then we still have to bite the bullet and continue to use it? ?Lu Xiujun, Director of the Department of International Cooperation, frowned and felt a little headache. In fact, at present, China''s trade with Europe is generally in a relatively balanced state, but when it comes to the business of the Commission of Science, Technology and Industry for National Defense, exports are still far greater than imports. Nowadays, the plummeting euro will naturally cause huge losses. Ding Gaoheng waved his hand to signal the other party to calm down: The specific policy for the euro has not been decided yet. I will be notified of the second emergency response meeting the day after tomorrow. I was not senior enough to go to the first meeting on the 25th, but presumably, the main discussion at that meeting should still be security issues. After all, no one thought that the euro would collapse so quickly..." When Lu Xiujun saw this, he could only smile bitterly and could not say anything else. In fact, it should be expected that the euro will be negatively affected... Huai Guomos tone was slightly filled with resentment: Although the Balkans do not use the euro, it is called the European powder keg after all. Once chaos breaks out, it will inevitably affect the whole of Europe, and the euro happens to be the whole of Europe. The currency spawned by the globalization issue has just been issued, and even in EU countries it is still circulating under a dual-track system of local currency and euro. This is the most vulnerable time..." Im afraid this is something that the superiors cant figure out. Ding Gaoheng interrupted Huai Guomo: Logically speaking, there is no reason why those cunning old foxes in Europe cant think of the problems that uneconomical people like you and me can think of. Since the Allied Operation was initiated with their support, according to our normal thinking, we must have had a response plan in advance... Who would have thought that I was really unprepared... Isnt this deserved..." Actually, this is not surprising ?Listening to Ding Gaoheng''s complaints, Chang Haonan suddenly remembered a joke, so he suppressed a smile and continued: If you pick out a single European country, they may all be old foxes for hundreds of years, but if you combine them into the European Union, they may not be able to perform at their respective levels. Just like I heard a saying, its a typical EU organization. It has a British director, a French director, and an Italian section chief. The typical EU agency official combines Italian organizational skills, German flexibility, French humility, Belgian imagination, Dutch generosity and British sincerity O ?When Chang Haonan first spoke, everyone thought he was talking seriously. It wasnt until he got to the part about the flexibility of the Germans and the humility of the French that he finally realized that this was a bad joke. By the end, several of them couldnt even hold back their laughter. In short, it is quite reasonable for such an institution to make some brain-dead decisions at critical moments... Chang Haonan concluded: And this should be an opportunity for us. ??Everyone who had just laughed for a while also calmed down when they heard this, but they didn''t answer. They just looked at Chang Haonan and motioned for him to continue. Especially Ding Gaoheng. Although the business of the Science and Technology Commission does not directly involve finance, almost all bulk commodities and orders in China''s import and export to Europe are related to it, especially the equipment industry and aviation industry, which have broken the ice in relations with Europe in recent years. Top priority. So when he goes to the meeting the day after tomorrow, he still has some say in trade. Of course, on the other hand, as the head of the defense industry, he really has nothing to say on other topics... It would be better to listen to what Chang Haonan has to say. ??Although the latter''s ideas are often not mature and require further polishing and processing by Ding Gaoheng in details before he can continue to report, in terms of the openness of ideas, no one can match it... There is no need for Chang Haonan to be pretentious now in the Science and Technology Committee, and he immediately said: As Director Huai said just now, the euro must be saved. Otherwise, letting the U.S. dollar dominate will not be a good thing for us to join the WTO, or for our trade after joining the WTO. Director Dante said that the EU was responsible for its own actions this time... In fact, he is right. The Americans are indeed the main force in the Allied operations. However, the situation has deteriorated to this point, and the Europeans themselves are indispensable behind it. Now that the euro needs to save itself, there is only one way out, which is to find a strong economy to support the credit of the euro. "This economy must first have strong production capacity, be able to provide industrial supplies to the EU in a long-term and stable manner, and be able to undertake European capital exports; secondly, it must have the motivation to strategically support the growth of the euro, and not be worried, or at least not afraid of standing still. On the opposite side of the United States; in the end, it must be large enough and relatively monolithic internally. Only in this way can it withstand the pressure from the east coast of the Pacific and help the euro compete with the US dollar..." Everyone is a sensible person, so what we have said is basically equivalent to making it clear. An economy that satisfies the above three conditions at the same time Huaxia said it would be better to report my ID number directly. "so." ?Chang Haonan looked around half a week in front of him: Whether it is from the perspective of teaching them a lesson, or from the perspective of adding icing on the cake rather than providing help in the snow, there is no need for us to act in such a hurry..." (End of this chapter) Chapter 688 Fuck you, the car hit the wall, did you know you turned a corner? Its too late! Chapter 688: Laughing to death, the car hit the wall, did you know you turned a corner? It''s too late! Hearing Chang Haonans thoughts, Ding Gaoheng did not directly express his position, but just nodded: Monetary and financial policies, implementation and announcements must be handled by specialized agencies. I will mention it specifically when I go to the emergency response meeting the day after tomorrow. Actually, the current situation makes Chang Haonan feel a little numb. In the previous life, Operation Allied also naturally caused the euro''s exchange rate to fall. But the decline is still a decline, and it does not mean that it has fallen like this. ??The reasons Huai Guomo just mentioned are all correct, but it is impossible to achieve such outrageous effects simply by combining the explosion of European powder keg and the refugee crisis - ?? Even if it is said that everything happened, it was the Balkans that had the trouble, not the Brittany Peninsula. 10% for three days. ??Those who dont know better think that the Germans have pulled three more armies to penetrate the Benelux and go straight to Paris. So, in addition to these obvious reasons, there must be invisible hands behind the scenes. As to who is the culprit... Laughing to death, theres no need to guess. In this life, under the instigation of Chang Haonan, the performance of the EU in recent years has been much faster than in the original timeline, and the Americans want to beat Europe, especially to protect the absolute dominance of the US dollar in the world. , the intensity used must also be much higher. So, he said that there is no need to rush to take action, but the degree still needs to be grasped by professionals. ?Theoretically, the best thing would be to act as the savior just before Europe can no longer hold on. But the closer you get to the limit, the higher the risk. After all, judging from the experience of later generations, it is difficult for these Europeans to be called hard-core at their core. ??If someone really votes, then the clown will be on his side... ?Thinking of this, he quickly said: Director Ding, Im worried that if the monetary management department directly makes a statement that is not conducive to, or even just does not support, the euro, it will be the last barbell that breaks the camels back..." ?This peculiar description made several other people laugh. Xiao Chang, what do you mean... "After seeking permission from our superiors, we, those of us who have business dealings with Europe on the front line, will first try it out. For example, we can set up some obstacles to the euros during the payment process, but we don''t directly reject the euros, and give the other side a kind of aloofness. Feel" Chang Haonan was still thinking about how to describe it, but Ding Gaoheng directly made it clear: I understand, its just like the method used by the Kingdom of David on us in the Ring Project, right? As expected of an academician, his ability to draw inferences from one case to another is very high. Thats right. ?Chang Haonan nodded decisively. Ding Gaoheng opened his notebook to take notes and said: I cant tell, Xiao Chang, do you still have the talent in this area? Just tell me what you think. For such a big matter, the superiors must decide in the end... Before I felt that by Ding Gaoheng, Chang Haonan also discovered that the smoothness of this kind of problem was a lot stronger than just being reborn. In fact, if we really talk about financial knowledge, it is just that he has experienced the era of information explosion more than 20 years later, and he has understood it more or less. After his rebirth, he has not studied it specifically. Even if he has made progress due to a lot of practice, he should still Not much has changed. ??If I have to say it, it was probably during this period of project work that I have raised my system management level to LV3. Of the three current projects, only the engineering experience is still stuck at LV2. Depending on the progress, when the die forging press or turbofan 10 project is completed, the entire system level can be upgraded to 3. At that time, you should be able to consider sprinting towards higher technologies. The next few days passed quickly. Operation Allied Forces entered its second phase starting on March 29. The attackers gradually realized that simple air strikes pose little threat to well-concealed and freely maneuverable military targets, but they did not want to send ground troops to grind meat, so they gradually shifted the focus of their attacks to the infrastructure necessary to maintain the city''s operations. . ?Chang Haonan was really anxious about this. After all, as someone who had experienced it, he knew that this was the real killing move. But on the other hand, everything that can be done has been done, and the only thing left is to do our best and listen to fate. Fortunately, the plan submitted by Ding Gaoheng was successfully passed. Although it has obviously been revised a few times, the core idea is still similar to Chang Haonan''s original idea. ?So, as soon as he received the news, he asked Song Jingming to close the account details page of the official website [Euro Payment]. ?Of course the connection on the surface is still there, but I just cant click on it. Those who placed orders over the phone, even if they said they were paying in euros, they would use various reasons to evade it. As for those who have already signed a contract, if the contract they signed was in euros, there is nothing they can do about it, but most of them still choose one of euro/dollar or euro/local currency. In this case, they also start negotiating with the other party to choose the other one. How to pay For a while, Chang Haonan regretted not adding enough places to the office and legal department... While China is busy in full swing, almost no one in Europe is paying attention to military matters. Bellaymont House, Brussels. Three middle-aged men in suits but with worried faces were sitting around a round table in a confidential conference room. Boy, this morning, the exchange rate of the euro against the US dollar has reached 1:1.0290. ?The first person to speak was German Finance Minister Wolfgang Sch?uble: After we have invested almost all policy tools and more than one-fifth of our reserves, although the rate of exchange rate decline has slowed down, if it continues like this, it may..." He hesitated for a moment when he said this, and glanced at the two colleagues in front of him: It may be necessary to use precious metal reserves... Theoretically, the most immediate way to protect the exchange rate is to directly restrict foreign exchange transactions and then force official settlement of foreign exchange. ??However, the EU was born from the womb to lower trade barriers. Now if you impose high-intensity foreign exchange controls, it will really become a self-defeating alliance... ?? French Finance Minister Dominique Strauss-Kahn had a lot of resentment on his face from the beginning. At this time, he directly tapped the table with his fingers, making two crisp sounds: "I have long said that the Allied Forces Operation was a trap dug by the Americans and would do no good to us. At that time, everyone had their own agenda and did not follow my stance. As a result, less than a hundred days after the euro was issued, the exchange rate fell. Almost 15%... Now they know they are anxious? " Kahn has been a loyal supporter of a single European currency for many years. When the euro was issued, he said a classic saying in the face of concerns and doubts within the euro area countries that would lead to the loss of monetary rights. Nothing has been lost. After the war, the monetary power of Europe has always been in the hands of the United States. After the advent of the euro, we will work with our European partners to regain monetary sovereignty. Such a main promoter of the issuance of the euro is naturally quite dissatisfied with the current situation. Its useless to say this now. ?? Italian Finance Minister Vincenzo Vesco, who was sitting next to him, patted Kahn on the shoulder and interrupted his complaint: The focus now is to think about how to restore the situation, and the action must be fast enough. "We lacked adequate preparations before and did not have enough ammunition in our hands. If the situation continues as it is now, it can almost be said to be a slow death." Thats right, this was a closed-door meeting held by the finance ministers of Germany, France and Italy. The rule of holding small meetings for big things also applies abroad. ?Everyone with a discerning eye knows that with the EUs rules, which require the consent of all member states, no decision can be made at a critical moment like now. So if something really big happens, the heads of the core countries should get together and have a meeting to get it done. Most of the time, this core country only includes Germany and France. ?But today, perhaps it is to make up an odd number, or perhaps because Italy has a relatively close relationship with a certain big country in the East. In short, Visco was invited here. And what he meant is very clear This is no longer an ordinary exchange rate slide. It is not an exaggeration to say that it exploded on the spot and spiraled into the sky. In other words, several old European countries have strong foundations and long health bars, and the country is still implementing a dual currency system, so they can still withstand it. ??If placed in emerging markets like Southeast Asia, this kind of decline is basically equivalent to a precursor to economic collapse. Furthermore, even the older generation of powers like them, oldmoney, cannot resist in the long run. ?Must hit hard! (End of this chapter) Chapter 689 One F117 is not enough Chapter 689 One F117 is not enough... Of course the other two finance ministers also understand the truth. But the problem is, how to deliver this punch. Save the situation, to put it simply. As a Frenchman, Dominique Kahn doesnt have any objections to the establishment of power in the Balkans, but he has strong objections to the United States taking the initiative and making the situation completely out of control: What capital wants is nothing more than low risks and high returns. As long as the Allied Forces operation continues, the risks in Europe as a whole cannot be much lower. In addition, the refugee problem may last for several years or even longer in the future, and The responsibility for post-war reconstruction is that the Balkan Peninsula after the chaos is now equivalent to a tumor, a tumor arranged by the Americans that will continue to erode Europe''s economic prospects..." In the ten years since the merger of Germany and Germany, Europe has indeed extracted a lot of cheap labor and even human flesh and consumables from Eastern Europe, but these were all planned and limited introductions of foreign populations. The influx of refugees is a completely different concept. It seems that we should be grateful for the losses suffered by the coalition forces in the past few days... ??Vescos tone was a little weird, but as an Italian, he didnt have any psychological burden on such a wavering statement: "However, a few aircraft, even stealth aircraft like the F117, is not a big deal to the Americans. The current situation is that the United States only needs to pay a little money for ammunition to bring global hot money back to North America from Europe. I said this morning I paid attention before I came here. In the past few days from the end of March to now, the US stock index has risen by nearly 20%..." "As long as the ground units are not moved, it is basically unrealistic for the Americans to stop their troops because of this loss..." Schaeuble felt that the attitudes of the other two colleagues seemed a bit negative, but intellectually he knew they were right. After thinking for a while, he spoke again: Now, the most direct way is to find an event that is enough to support the worlds confidence in the euro. For example find a country to support us This idea can only be said to lead to the same goal through different paths. There are only so many means in economics. Excluding those that have been used, those that are useless and those that cannot be used, this is the only one left. So after the three people discussed it, they reached a conclusion similar to that of Chang Haonan before. Excluding the countries involved, the only countries in the world that can be called big countries today are Mao, Japan, and China. ?One of the currencies has plummeted and is unable to take care of itself, while the other seems to be independent but is essentially a lackey. There is no choice. "so." Sch?uble and Kahn almost looked at Vesco at the same time: Your business ties between Italy and China are relatively close. What do you think of their attitude? "well" The latter leaned back on his chair with a slumped expression: Not very good. Although their official agencies have not yet expressed their position, several companies that have cooperated with us in depth have hinted that considering the current stance, they are hesitant to support the euro. This position tendency means Schaeuil Brown showed his "German flexibility" at this time and asked directly. ?Visco almost rolled his eyes to the sky: Those who do business with us are state-owned enterprises, so naturally we must take into account the official attitude. You dont think that China will support us in launching an allied operation... really. Furthermore, the current situation is obvious that the United States wants to take this opportunity to target the euro and give us a platform, but it must also consider the consequences of doing so. Vicos continued: In short, even if they have this idea, Im afraid they wont be able to agree so quickly. Kahn put a hand on his chin. Because his palm blocked half of his face, his expression could not be seen clearly: If we were to change our position and consider it from Chinas perspective, it would not be in their interests to allow the US dollar to grow... ?Visco shook his head: But for us, every additional day of delay will bring greater losses and pressure. What if we offer some favorable conditions? For example, fully support their accession to the WTO? Are you so sure that Americans will agree? No matter what, at least the situation of the euro can be stabilized first, otherwise if we really have to use gold reserves, it basically means that the euro will be completely destroyed..." After a frank exchange of views, the three finance ministers all looked a little tired.?????What if we think more broadly and think beyond economic means? Schaeuil Brown was holding a cup of coffee and rubbing his swollen forehead with his other hand: "Can we use some means to force the Americans to stop? For example, we... uh... I mean, you withdraw your troops first or something like that?" ?Although Germany is now unified, it has a special status and has great influence in the EU, but it actually has little say in NATO. On the contrary, France and Italy still have a little weight. How is it possible ??Vesco looked at the German allies as if they were mentally retarded: We are the finance minister, not the defense minister "And not even the Minister of Defense, or even the Prime Minister or the President can make such a decision. Those generals have probably been bribed by the Americans a long time ago. Besides, military is not a child''s play. No matter how hard it is, ultimatums have been issued. , the reason why we should fight among ourselves first in the middle of the fight..." The three fell into silence again There is a problem involved here. NATO, and the EU. ?Although there is a relatively high degree of overlap in national composition, they are essentially two completely different organizations. Even within countries that are members of both, the two systems are relatively independent. ?Hence, there is often a schizophrenic phenomenon in which a country seeks to be independent economically, but relies on the United States for national defense. However, everyone with a discerning eye knows that how can military and economics be completely separated? ??It''s enough to shout slogans at ordinary times. When it comes to taking action like now, criticism with weapons is more effective after all. From this perspective, de Gaulles idea is undoubtedly correct. There is no meaning without national defense independence and economic independence. However, at this point in time in 1999, even if the three finance ministers knew this truth, they would not be able to solve the problem at its root. The silence lasted for quite some time. So much so that the atmosphere in the conference room became a little anxious. "actually" ?The Italian puts the empty coffee cup and spoon on the table in front of him: If you have to say it, its not impossible ??The other two people, who were already at their wits end, naturally became energetic immediately after hearing this. "If...I mean if, there is a huge change in the direction of public opinion in several of our countries on this matter, then it is not impossible to call a truce..." You mean using the media? Schaeuil Browns train of thought has obviously not changed yet. Merely using the media may not work. Americans are much better at this than we are... and the public will not cause any big waves just because of a few articles or speeches. ?Visco shook his head: There must be some landmark events. Let the Russians go to **** and threaten us with nuclear war? ??The French are quite bold in thinking. If its fifteen years in the morning...maybe itll be okay. Sch?ubren shrugged, obviously not thinking it was feasible. ?The meeting was almost deadlocked. In any case, Wolfes method is the only one currently feasible. After all, Kahn was still reluctant to let the euro, which he had devoted half his life to, decline after a hundred days of its birth: Contact the Chinese people and ask them about their prices. The market is still waiting to see if all, or at least most, of the trade between China and the EU can be settled in euros, then confidence will at least not deteriorate further. In any case, I dont think the EUR/USD exchange rate can fall below 1 (End of this chapter) Chapter 690 It shows the value of united front Chapter 690 shows the value of united front In fact, the finance ministers of Germany, France and Italy are not all loyal supporters of the euro. But no matter what their attitudes were in the past, now they are definitely a community of interests with highly consistent goals. Since the euro has been issued and the timetable for replacing the national currencies of the euro zone countries has been clearly announced, there is no way back except the possibility of insisting on pushing forward the unified currency. ??Moreover, three months ago, they personally went to ring the bell at the launch ceremony of the euro. Its only been three months! If something really happens, others will not care what your "original" attitude was, nor will they care about such a big matter. It has lasted for so many years. There must be more than one promoter behind it. I can only think of you, an old boy, who did this in the first place. ??The blame will definitely fall on the three of them in the end. ?Of course, this is fair. After all, if in another timeline, the euro took off directly after its issuance, countered the US dollar and directly became the world''s most mainstream currency and led Europe to revive... ?The credit will also fall on the three of them. ??It is possible to take advantage of the situation and directly form a party to participate in the election, become a powerful figure in the political arena and leave a name in history. Its just that they underestimated the determination of the Americans in this matter and overestimated the independence of the Europeans. Fortunately at this time, its not too late Contacting Chinese people is indeed a top priority. Schaeuble nodded in agreement, but then changed the subject: "However, now their central bank and the Ministry of Finance have not expressed their stance. Whether the reason for this is that they really have not reached a unified opinion, or they deliberately want to delay time and observe the subsequent development of the situation, it is impossible because we have spoken out. Just ask and give a clear answer honestly. Based on my experience in dealing with the Chinese people over the years, in this case, if we ask directly, the opponent will probably start kicking the ball directly, and at most they will say some innocuous words to deal with us. You have to give it a try, you cant just sit back and wait for death. ?Kahn was already a little unable to sit still at this time: "Moreover, they have not made an official statement, but at the same time they have put pressure on us on a commercial level. This posture shows that they are also afraid that the euro will really collapse. Now they just want to occupy a favorable situation as much as possible before the negotiations. As long as If we test it a few more times, we will always get a response. ?According to his thinking, although China has great appeal and influence in emerging markets, in terms of hard power, it is only a country with the seventh largest GDP, and is not even as good as Italy, the most powerful among the three countries here. ?Even if a lion opens its mouth wide, it does not have such a big mouth. Hence, the cost-effectiveness of letting the other party express their opinion will never be too low. But Sch?uble obviously didnt think so: The combined economic size of our three countries is six times that of the Chinese. If we do what you say, our posture will be too low..." ??The German economy is now the third largest in the world, and riding on the east wind of the reunification of the two Germanys, the Germans are still at a stage of relatively inflated self-confidence. ?Although rationally I can think of "asking Huaxia for help", emotionally I don''t want to appear too demanding. Europeans have this virtue. Speaking out of character and upright. Its better than this. ??The Italians have indeed cooperated with China a lot in recent years, so Vesco''s mind is more flexible than his two colleagues: Since the Chinese are exerting pressure on us through enterprises, we can also use the same method to test their conditions in turn. Anyway, most of the companies we have contact with are state-owned enterprises of the other party. Even if their statements cannot be directly equivalent to the official ones, they can at least represent their official intentions to some extent. Is the companysurely reliable? Schaeuble was still a little hesitant, but his attitude was obviously relaxed. As long as both parties have this intention, even a table tennis player getting into the wrong car can be an opportunity to break the ice. Why cant companies do the same? Visco still has some research on China. This idea is relatively compromise, which not only satisfies Kahn''s urgent need to solve the problem, but also makes Sch?uble''s side justified in terms of face. So the three people quickly reached a consensus. In addition, this matter must be kept confidential, I mean, from the Americans. ?Before leaving the meeting room, Visco emphasized to the other two people: There is a saying in China, which is to build the plank road openly and build the warehouse secretly. "It''s best to secretly find some middle-level companies who already have good personal relationships with China to test. Don''t leave any trace on the outside. Just say that you are following the delegation to inspect the project, or simply discussing business. In this way, the United States Even if people have good intentions, they will focus on those important people. The other two people dont know much about Chinese culture, but countries around the world actually have classic expressions like this, so its not difficult to understand. Kahn thought for a moment and quickly thought of an opportunity: "If this is the case, I remember that the European Aerospace Defense Group is expected to have a trip to China in May... It seems that a cooperation agreement was signed two years ago, and the location and policy of the factory there have been decided. This time we will go Examine the production capacity there and determine which production capacity and processes need to be moved there. " European Aerospace Defense Group, the parent company of Airbus and Eurocopter. Although it is considered a Dutch company geographically, in essence, the French have the absolute say in it. ?Seeing that the other two were lowering their heads and thinking, Kahn continued: "The scale of such a delegation is large enough, the time spent in China is long enough, and the itinerary is complicated enough. It even has to be divided into three parts and go to three different places at the same time. All it takes is to put a few reliable people into it and Its not difficult to get things done. But if the current trend continues until May, the credibility of the euro may not even be comparable to that of the ruble... At least there is gold in the Russian central bank vaults. ?Visco shrugged and said in a strange tone. In the 1990s, almost all the gold reserves of European countries were placed in the United States. So they just said that if it comes to the time when precious metals must be used to support the value of the euro, it will basically be equivalent to losing everything. "May was the original plan. Now that the situation has changed so much, it is reasonable to go earlier. You don''t have to worry about this. I have personal connections that I can use..." Kahn obviously has a plan in mind: "Furthermore, I can see that China has attached great importance to the aviation manufacturing industry in recent years. We take advantage of this opportunity to, firstly, increase the proportion of industrial transfer as a significant bargaining chip, and secondly, there is a high probability that we can directly see the to the more influential officials there. "After I took office as Finance Minister, I specifically read the memorandum on the entire process of our negotiations with China two years ago. At that time, it was a simple business cooperation between the two parties at the beginning, but halfway through, all important leaders from both sides were involved. It finally evolved into an official agreement between China and the EU. This incident, and the series of operations behind it against the Boeing-McDonnell Douglas merger, are a typical victory for the EU against the United States in the past two years, and have greatly inspired Europeans'' confidence in integrating Europe into a world pole. So the other two people obviously also knew the details. ?Now that Kahn mentioned it, I suddenly felt that the future was much brighter. Okay, I agree. I agree too. Success in the past is always pleasing, so Kahn specifically mentioned the case from two years ago. ?Of course, there is also a certain inducement component in this. ?For example, "If we can repeat the operation from two years ago, the three of us can make a comeback." In this case, how about directly adding some personnel from our financial institutions and central bank to this delegation? If we need to talk, we can be more direct. "No, I''m worried that the people from the central bank are unreliable. If they are sent there too early, they may be exposed..." In short, move faster, waiting for even one more day may cause big trouble... (End of this chapter) Chapter 691 Take risks Chapter 691 Taking risks Facts have proved that at least Europeans in the 1990s were able to show some efficiency when their lives were at stake. Within a few days, the news that the European Aerospace Group was planning to modify the itinerary and visit in advance reached China. ?At this time, Chang Haonan had basically finished his work in the capital and was about to leave for Jiangcheng to ensure the final stage of construction of the heavy-duty die forging press. ??As a result, not long after I asked Zhu Yadan to report the itinerary, I received a call from Ding Gaoheng. Xiao Chang, I just received the notice from above. The European Aerospace Group is going to send a delegation to China in two days to inspect and discuss with us issues related to cooperation in the aviation industry. ?After the call was connected, the other party got straight to the point. Chang Haonan was stunned when he first heard the news, and then remembered that the European Aerospace Group was later Airbus Group. ??If calculated in terms of output value, about 70% of the cooperation with Europe he has facilitated in the past two years is related to this company. ?Including the NSK bearing incident that triggered the collapse of Japanese companies'' reputation last year, they also used the other party''s Eurocopter company. They are also old friends in a sense. Are you planning to go to the aviation industrial park we plan to build in Luzhou? ?Chang Haonan almost blurted out. The location of the industrial park was determined in October 1997, and it has been almost a year and a half now. If we count the progress, various preliminary work such as land planning, policy support and infrastructure are almost completed. After all, it is a project personally supervised by the highest level. In addition, Anhui Province itself is also a relatively well-developed region, so the efficiency is certainly not high. Considering that from the very beginning of the planning of this industrial park, it has been clearly stated that it will provide supporting facilities for the European aviation industry. Now that the foundation has been laid, how to develop it in the future will definitely need to be discussed by both parties. ? It was originally planned that the first phase of the project would only hand over some parts that did not involve the core of the aircraft to Chinese suppliers for production. But in todays context, there is obviously still room for negotiation. Of course I will go to the industrial park, but this time the delegation opposite is very large, and the visit time is also relatively long. Ding Gaoheng on the other end of the phone replied: In addition to Luzhou, the other party has also applied for trips to several other places, such as the Bingcheng Helicopter Group and the newly built aviation weather simulation wind tunnel in Fucheng. "Although these matters have their own leading units, they were basically promoted by you at the beginning, so when negotiating later, we still have to refer to your opinions, especially in the industrial park, where many details still need to be confirmed. " Of course this is no problem Chang Haonan has been planning to connect China''s aviation industry with the global aviation industry two years ago, so he almost subconsciously expressed his agreement. ?But only halfway through his words, he suddenly realized that at this very sensitive time point, the Europeans might have the same idea as him - He wants to use the weakness of the euro as a bargaining chip in exchange for a wider range of industrial transfers. The other side also wants to use its advantages in the aviation industry to exchange for China''s support for the euro. It belongs to the **** who looked at the mung bean - his eyes met. As for why we have to go through all the trouble like this, it is obviously to deceive others. It should be admitted that the Europeans ideas are good. ?However, at the implementation level, there is indeed still room for improvement of 100 million points. Even before Chang Haonan got the news and speculated on the purpose of the EU''s trip, a detailed report with straightforward conclusions had been sent to 1600 Pennsylvania Avenue. Inside the Oval Office. ??An international affairs assistant handed the report to several other people sitting on three rows of sofas on the other side of the office. Everyone, this is information that the intelligence department has just intercepted in the past few days. The Europeans may be almost unable to bear it anymore and are preparing to ask for help from China. After circulating it from beginning to end, the person sitting behind the desk said: You have just read their specific plans, as well as the conditions and bottom line. Having said this, he put the cigar in his hand on the metal holder next to him and looked up at the sofa: Bob, do you think that if China agrees to the EUs conditions, how much impact will it have on the situation? ?On the other hand, Treasury Secretary Robert Edward Rubin hasnt even recovered from the report he just read. Its not that the content of the report is so incredible. On the contrary, the fact that the EU would seek help from China is basically a well-known fact and is not surprising to professionals. At best, he didn''t expect the former to be so stubborn. It took less than half a month before he couldn''t bear it anymore... What really shocked him was the report itself. It wasnt until he heard someone calling his name (Bob is Roberts nickname) that he suddenly woke up. However, he did not answer the other persons question immediately, but carefully confirmed: The accuracy of this information For Rubin, the content of the document just now was so detailed and substantial that it hardly seemed like intelligence. Even if he is asked to sit in the other party''s meeting and write a memo, it is nothing more than that. So his first feeling was even ?This cant be fake, right? After all, similar scripts were not uncommon in the battle of wits with the KGB in the past few decades. What if we are preparing to divert trouble to the east? As a result, the other party waved his hand directly: We have special intelligence acquisition channels in Europe, and the accuracy does not need to be questioned. ??Rubin still felt it was a bit outrageous, but since the leader said so, he couldn''t ask any more questions, so he had to continue to answer the previous question: Although Chinas economy is currently only the seventh in the world and not as large as Italys, its growth rate is rapid and its market potential is large enough. Its influence on the global economy is far beyond that of being the seventh in the world. "At present, the EU has basically taken out all their response measures. The exchange rate of the euro against the US dollar this morning remained at 1.0210. If China really uses the euro in all or most of its trade with Europe, I think... at least it can It will offset or even reverse the downward trend of the euro in 2-3 months. More importantly, I personally think that if the Chinese side with the euro, then we will probably not be able to push the exchange rate of the euro against the dollar below 1 in a short period of time. ??During the first few items, the other people still maintained their calm expressions, but when Rubin mentioned the last item, the atmosphere in the office changed almost instantly. The hypothesis of a rational person is just a hypothesis after all. Market confidence is something that is never rational to you. So everyone unanimously focused on the key exchange rate point of 1:1. It is no exaggeration to say that the negative impact caused by the drop from 1:1.1800 to 1.0210 may not be as great as the drop from 1.0210 to 0.9990 - If the euro is really hit below 1, even if it recovers in the future, the damage to its credibility will be irreversible. For the few people here today, they have been planning for such a long time, so naturally they cannot give up easily. So China cannot be allowed to openly support the euro. Albright, who was sitting opposite Rubin, spoke decisively: At least not in the short term. What should be done to stop them? The question came from behind the desk again. WTO negotiations? Albright was a staunch supporter and powerful promoter of Allied operations. Naturally, the first thing that came to mind was the direct approach: If they side with Europe... Im afraid it will be difficult to solve the problem simply ??Rubin felt his head swelled when he heard this crazy woman''s speech, and quickly interrupted her: Besides, Chinas joining the WTO is also good for us. ??Rubin himself also hopes that China can join the world trade system as soon as possible. Although he has not told outsiders yet, he has decided to resign within this year, hand over the position of Finance Minister to his student Lawrence Henry Summers, and go to work as a senior executive in the enterprise. A China that has joined the WTO will bring no harm to his career in his later years. So he quickly stopped Albrights crazy idea: We need to be strategic in everything we do. China has not started talking to the Europeans yet, so we cannot push them to come together. On the contrary, if we give them some sweeteners, we may be able to divide them..." ??Rubin''s prestige among the Donkey Party is considerable. Hence, after he finished speaking, several people immediately expressed their clear support. But what if the little white rabbit doesnt eat our carrots? Albright said something slightly joking, but there was no joke in his tone. (End of this chapter) Chapter 692 Running in both directions Chapter 692: Running in both directions The position of National Security Advisor is not an official employee, but a personal assistant hired by the president. So the specific role and influence it can exert depends entirely on the individual. And Sandy Berg is one of those who is relatively influential. So after he mediated in the middle, Albright did not continue to struggle with the WTO issue. But the problem just raised by the latter still needs to be solved. The influence of the euro is really too great. To put it bluntly, everyone in the world except the United States is happy to see the euro successfully challenge the hegemony of the US dollar. Although for most third world countries, the image of Europe is not as good as that of the United States. But having a choice is better than having no choice. ?So even if the American people today have high aspirations, they still know that relying on a little favor alone may not make China change its position. Carrots and sticks, the stick can be used but cannot be left out. Generally, the best and most convenient method is economic means. However, Rubins statement just now has blocked this road again. ?As a result, the huge Oval Office fell into a slightly abrupt silence. Its not that everyone cant think of other methods, but that the remaining method is obvious but full of risks. No one wants to be the first to suggest something. Even Defense Secretary William Cohen. "Since economic means cannot be used...then the only remaining options are military means..." In the end, it was Albright who continued to develop his own character of a war madman. ??Rubin did not take a position this time. ?As a finance minister, he has neither the say nor responsibility in this matter. In fact, Rubin even held a noncommittal attitude toward the Allied operation itself. Its not that he has a good heart. Just as a veteran cadre who is about to enter the revolving door smoothly, I dont want to put more effort on myself. Tired. But the other party is a nuclear country after all? ??Sandy Berg saw Rubin lowering his eyes and not speaking, so he had no choice but to step off and play the role of a brake pad. Of course its impossible to start a war directly, as long as we let the Chinese people know how powerful we are at the critical moment..." "In this case, let the Joint Chiefs of Staff come up with a suitable plan. However, the Allied operations are currently at a critical moment, and the effect achieved by air strikes alone is lower than expected, so... it is best not to open another battlefield." Butwhat are the limits of action? Henry Shelton, Chairman of the Joint Chiefs of Staff, originally thought that his affairs today had nothing to do with the army, so he had been eating melon nearby. Unexpectedly, he went round and round, and finally failed to eat the melon, and the blame fell on his head: "Military operations need to set clear starting and ending lines. To be honest, even the current Allied operations have violated this principle..." ?It is of course impossible for anyone to answer this question. After all, just half an hour ago, no one thought that today''s incident would be related to military operations... Speaking of returning to China. After all, the European Aerospace Group''s delegation is here for pure business negotiations, so it is impossible for China to come up and wait for the entire official delegation. ?That eating scene is too ugly. We are all decent people, and we still have to go through the cutscenes. So, after Chang Haonan received the call from Ding Gaoheng, he stayed in the capital for a few more days. ?Theoretically, the visit to the Torch Group was not included in the other partys itinerary this time. But the actual situation is not easy to say. ?In this era, when flying from foreign countries to China, no matter where the final destination is, you basically have to land in Beijing, Shanghai or Hong Kong Island. Since this European delegation came with the idea of ????building a plank road openly and secretly visiting Chencang, the first place to stay would naturally be the capital. ??Huaxia also knew that the other party had the purpose of negotiating with it, but it was hard to explain clearly, so in order to create opportunities, various retreats were arranged for the first three days of the entire trip. ?With such a two-way rush, the two sides naturally quickly caught up with each other and each offered its own price. The EU hopes that China will switch at least 70% of its trade with Europe to be settled in euros. In exchange, they are willing to waive compensatory taxes on the European Aerospace Group''s move of some parts production lines for Airbus A320 and 330 aircraft out of the EU. Originally, Airbus was going to transfer some of its suppliers to China, which would lead to a reduction in jobs in the EU, so some of the preferential policies granted to them in the past would be cancelled, and the money would have to be made up. The more production capacity is transferred, the more back taxes, in fact, fines will be paid. It can be regarded as a restriction of industrial protection. Now, I wont accept the money. In other words, it allows or encourages Airbus to transfer suppliers to China. After all, the latter has huge advantages in production capacity and cost on the premise that product quality meets standards. As for Huaxia, although Chang Haonan did not directly participate in the negotiations, he still explained his attitude towards the aviation industrial park through a direct report to Tianting. When it was first planned to undertake the transfer of the European aviation industry, the ultimate goal was to build an "Asian final assembly center" in China. The idea is to sell Airbus to Asia, at least aircraft in East Asia and Southeast Asia, of course mainly the two models A320 and A330, and send them all to China for final assembly of large components. Of course, at this time two years ago, China was still not sure about "producing a mainline passenger aircraft in accordance with the latest European industrial standards." ?Although Huaxia had assembled some MD82s at that time, they were all produced according to the technical requirements of the mid-1980s. At the turn of the century, not to mention Europe, even China cannot meet its own standards. Thats why we plan to proceed step by step. We will first produce some non-core parts with relatively low technical requirements in China. After the production capacity reaches the required level, we will then consider the final assembly. ?However, at that time, even Chang Haonan himself did not expect that he and the entire Chinese aviation industry could be so powerful. In the following two years, it would develop to the extent that it could directly guide Europeans in the design of aircraft. Although the level of production is still a little worse, it has achieved a considerable leap through several projects, especially the production of C808 passenger aircraft. In this case, the Europeans are still only willing to provide part of the parts production line as a condition, which really seems not sincere enough. After all, supporting the euro is risky. In addition to the reciprocal conditions proposed by the financial field, such as signing a RMB-Euro term swap agreement at a more favorable exchange rate, at least more words must be opened at the industrial level. ?For example, more production processes involving core components, such as automatic carbon fiber laying to produce wings, will be introduced into the country. Or start implementing the Asian final assembly center in advance. In short, the euro has become the virtue it is now. It would be good to find someone to support it, and the conditions must be stricter. Originally, Chang Haonan thought that although this set of boxing combinations could not be regarded as taking advantage of others'' danger, at least it was a bit like adding insult to injury. Even if we can negotiate, it will still be a stalemate for a while. ?But soon, the American sent an assist. One morning in mid-April, the euro opened below 1.0100. This means that there is basically only the last tremor left before the critical node of 1:1. Please do not mention relevant historical events directly in the comment area. The risk is very high and may easily lead to additional review. It is not easy to publish these chapters in full... (End of this chapter) Chapter 693 american revenge Chapter 693 American Revenge Chang Haonan, who did not directly participate in the negotiations, received the complete version of the agreement between the two parties only a few hours late. ?This time it was not Ding Gaoheng who gave it to him. As a professional with extensive experience in dealing with the EU, Yang Huimei participated in the entire negotiation process. ?Although the terms of the agreement are very long and contain many details, the core conditions can be summarized in just a few points: ??European Aerospace Group has promised to start final assembly qualification certification for China within two years. Construction will officially start after approval. The EU will not impose compensatory taxes on this project and will provide necessary policy conveniences. In addition, Germany, France and Italy pledged to fully support China''s accession to the World Trade Organization. Even if the negotiation process is blocked due to external factors, the three countries will provide China with the most-favored-nation treatment equal to that of WTO members before December 1999, and in 2002 This treatment will be extended to the entire EU by December next year. China, on the other hand, promised that in the next five years, no less than 50% of EU trade will be settled in euros, and agreed to reduce the business scope involved in the Asian assembly center. The first phase of the project will only include one series of A320 aircraft. As well as orders from China and Southeast Asia (except Singapore), access restrictions in multiple fields will also be opened to EU countries on an equal basis. Simply put, regardless of whether China joins the WTO in a legal sense, both sides will treat each other in accordance with the conditions of WTO members. It is a yes to be treated as a public servant. As for other contents, it can be regarded as written by the internal departments of both sides that have trade needs. ?For example, the "computer software and related technical services" project, even if there are similar carriers such as CDs, it still enjoys zero-tariff treatment. It is obviously added for Chang Haonan''s sake. The result was reached so quickly? ?Chang Haonan looked at the thick agreement in front of him with shock in his eyes. ??It''s the kind that used to appear in the eyes of other people across from him - It is indeed too fast. This speed is almost equivalent to taking three years to build a turbofan 10. The person opposite is the European who loves red tape the most... We have common interests with the Europeans on the matter of not letting the euro collapse, at least not too quickly. So, in fact, from the very beginning, the two sides were talking with their cards on the table. ??Yang Huimei obviously didn''t get much rest these days. She sat on the sofa beside Chang Haonan''s office and rubbed her forehead while saying: "Actually, if the euro''s exchange rate can fall a little slower, I guess it will take some time to reach a consensus, and Europeans are not that easy to talk to." "Based on my previous experience, their mentality when negotiating with us is actually very awkward. On the one hand, they know that there are benefits to cooperating with us, so they have to sit down and have a good talk, but on the other hand, they like to put on airs and feel like sitting down Negotiating is bowing to a developing country..." ?This mentality is a bit difficult for Yang Huimei, but in Chang Haonan''s view, it''s not a big deal. Just pretend that the person facing you is captured by the orcs... ?Although I say no, my body is very honest... Ahem, thats probably what it feels like. After a brief pause, Yang Huimei continued to add: "Moreover, just a few days ago, when we first started to contact the Europeans, I heard that the Americans also offered a price, saying that they could relax the conditions for industry access rules during the WTO accession negotiations, especially no longer requiring China has fully liberalized access restrictions in the fields of telecommunications and agriculture. Hearing this, Chang Haonan couldn''t help but sneered: This is obviously playing cards out of thin air. The sincerity is far worse than that of the Europeans. They didnt even say how much they would relax. If we go to talk to the other party and delay for a while, the euro may really collapse..." While speaking, he stood up and went to the small table next to him, made a cup of tea for Yang Huimei, and placed it in front of her. ?After all, others have benefited a lot from the Torch Group during the negotiation process, and now that they are so tired, they can no longer just leave it alone. Creating cards in the void ??Yang Huimei picked up the cup and blew on it while recalling the word she heard for the first time: This is a very vivid statement. Its nothing but nothing, but its still very useful as a bargaining chip to negotiate terms with the Europeans. Because of this, one of our delegations that was originally scheduled to go to the United States at the beginning of the month has been postponed. "However, after the euro fell below 1.0100 three days ago, both sides felt that the problem was serious and could not drag it out any longer, so they each took a step back. Anyway, the content of the agreement was already written in detail before the talks began. The last step is to modify a few key numbers and add a few insignificant pieces of content, which is very fast. ?Chang Haonan raised his head and looked at the perpetual calendar. April 15th. Compared to the previous generation, the speed of the euro''s decline this time is indeed a bit exaggerated. When will it be officially announced? At five oclock this afternoon Beijing time, which is noon on the European side, the market is still in a wait-and-see mood. If the news is released, the exchange rate should be restored in the afternoon. ?Yang Huimei lowered her head and took a sip of water: Actually, the original plan was for tomorrow morning, but the EU probably doesnt want to wait for more than an hour Speaking of which, from a professional point of view, can our support really reverse the decline of the euro? ?Although Chang Haonan proposed a plan to help the euro in exchange for conditions from the beginning, he actually has no systematic knowledge of finance, so he is really unable to do quantitative judgment. Facing this question, Yang Huimei hesitated for a while, but finally nodded: During the break in negotiations, I asked representatives from the central bank. They thought that there would be no problem in the short term, but if chaos continues in the Balkans, the euro will always be in big trouble in the long run. This long term refers to Depending on the destructiveness of Allied action. ?Yang Huimei regained her energy a little, sat up straight and replied: If it really lasts for a few months or even a year, even the gods will not be able to save the euro..." And not only the war itself, but also other subsequent problems will have an adverse impact on Europes economic stability. Among other things, the economic and moral pressure on future post-war reconstruction and refugee reception will definitely fall on the EU. After all, if we really want to trace the source, they themselves started this round of things, and the Americans just came to wipe their **** and make peace ?Chang Haonan shook his head, not knowing how to evaluate it. ??If it werent for the fact that both sides now have a common interest in fighting the US dollar, he would just want to say What a death, you really deserve it. ?Seeing that Chang Haonan did not speak, Yang Huimei was silent for a while and then continued: "However, after all, this kind of follow-up impact is scattered over a few years. At present, what we are more worried about is whether it will arouse overly intense protests from the Americans after the agreement is made public. reaction, and how to respond. Including clauses specifically included in the agreement regarding the obstruction of WTO accession negotiations, it is also to prevent the other party from intending to retaliate against us in this matter. After all, the world''s most powerful country can be looked down upon strategically, but tactically it must still be respected enough. "There''s nothing you can do about it...this kind of thing is a fundamental conflict of interest." ?Chang Haonan sat back behind his desk, half leaning on the chair and said: "If we seek peace through struggle, we will survive peacefully; if we seek peace through concessions, we will perish peacefully. Joining the WTO is indeed beneficial to us, but if we abandon the bottom line principle in order to join the WTO, it will probably be counterproductive and further encourage the other party to speak loudly. In the end, even if If we add it, we will end up like Mexico in the North American Free Trade Area. ??He was chatting with Yang Huimei about the negotiations with Europe, but his mind had already begun to think about some content that was not convenient to say. As a reborn person, he knows very well that the EUs information is basically one-way and transparent to the United States. ??As for the signing of the agreement between the two parties, the latter probably received relevant news a few days ago. ?Of course, even Chang Haonan could not have imagined that the outcome could be reached so quickly, and the Americans would most likely be caught off guard. So the other sides current preparations are not so much retaliation as they are beating. It''s just that the matter was finished here before I had time to knock. But in any case, if the other party is preparing to cause obstacles in the WTO accession negotiations, then the negotiations are currently underway, and news should have come back long ago. Since there has been no movement so far, it means that the Americans actions are most likely not on trade. But it takes longer to prepare. In this case I can only hope that my preparations so far will be effective... (End of this chapter) Chapter 694 ghost attack Chapter 694 The Ghost Attacks ?Chang Haonans estimate is not wrong. ??Although the US intelligence agency does have a "special intelligence acquisition channel" in Europe, this channel cannot be real-time and there will always be an update cycle. ?Especially since the EU delegation is currently in China, this cycle will be longer than that in Europe, which has already iterated on a mature path. So, by the time the news spread back to North America, the news about "a package of trade agreements reached between the EU and China" was already broadcast on TV... EST, early the next morning. Still the Oval Office. Still the same few people. But the atmosphere in the room was completely different from the previous days. Several cigars were being lit, making the splendid office filled with smoke. No one spoke. Everyones attention is focused on one corner of the room. ?There is a TV there, which is playing the scene of Chinese and EU negotiators answering reporters'' questions at the press conference. In the next five years, no less than 50% of the trade between China and the EU will be settled in euros. In addition, when conditions permit, both parties will also try to be more diverse in a wider scope. The means of using currency..." "Germany, France, and Italy will sign a free trade agreement with China before December 31, 1999, with reference to the most-favored-nation trade status. This agreement has the principle of openness and does not rule out the inclusion of more countries in the future. The EU recognizes that China is a global player. The important role played in the process of market opening, understanding and supporting Chinas demands to join the World Trade Organization..." Everyone has a "numb" expression on their faces. ?Compared with the information they are holding, the content shown on TV is not complete. For example, it does not mention some details of tariff reductions. But the core meaning is the same. Obviously, their movements are still too slow. I have long said that my previous stance should be tougher, but now they obviously dont take us seriously at all ?After a long silence, Albright frowned and waved away the cigar smoke that obstructed his vision, and spoke in a slightly hoarse voice. Logically speaking, in the current situation, it is not suitable for her as a secretary of state to speak in such a tone. But in the past few years, a series of scandals, each bigger than the last, have already damaged the president''s authority. ??Had it not been for the fact that the United States was still on the rise at this time, and the donkey-elephant dispute was more or less a shame, I dont know what would have happened. Fancy flowers, no problem. Everyone has a moral vacuum anyway. Dont say that the target of the zipper door is an adult woman, even if it is an underage boy...ahem. But after you finish playing, you are left with a mess of things that you cannot clear up, and in the end you have to let others follow you to wipe your ass. This is a question of ability. In this circle, people can be bad, but they cannot be stupid. So now, the entire team doesnt take the person behind the desk seriously... ??Rubin, who was sitting opposite, didn''t look good either. ??This round of complex games surrounding the Balkans is relatively complicated and involves many fields such as foreign trade, monetary and financial policies, and military operations. ??But there is no doubt that no matter what the superficial reason for the series of operations is, its core purpose is to suppress the new euro so as not to threaten the dollar''s absolute dominance in international trade. As the Minister of Finance, he is naturally directly related to this. Now that China has implemented this operation, the exchange rate of the euro against the U.S. dollar has risen by nearly two percentage points. Although it is not worth mentioning compared to those that have already fallen, this is obviously not a trend that the United States wants to see. ?Of course, Rubin will not let go easily: "The problem now is not whether we are tough or not, but we didn''t expect that the Chinese would completely ignore the conditions for our departure, and that the Europeans could reach an agreement with the Chinese so happily, which led to the failure of the previously planned plan. Too late to implement. "Taking a step back, if you look at the specific content of this agreement, it has obviously taken into account the worst case scenario of failure to join the WTO. If China and Europe are really allowed to establish a free trade area and then include Russia and ASEAN, we will not have to What happened to the World Trade Organization..." "Moreover, we promised those companies to open up the Chinese market. If something goes wrong in this regard, the entire West Coast may become an iron vote warehouse for the Elephant Party. For at least the next twenty years, Congress may be dominated by the Elephant Party alone. Da, will you take the responsibility then?" ?Albrights lips moved but he did not continue speaking. Although the Secretary of State has a higher position in the cabinet than the Secretary of the Treasury (fifth vs. sixth), Rubin has an extremely close relationship with the financial capital of Wall Street and has students and former officials all over the United States. , but actually a very influential person. And what the other party said makes sense. The office fell silent again. Since the agreement between China and the EU has been signed, are our previous preparations... unnecessary? Henry Sheldon, Chairman of the Joint Chiefs of Staff, doesnt care about exchange rates or trade. He just wants to quickly persuade the guys in front of him to take back their previous crazy ideas so that he can order the 509th Bomber Wing to end its combat readiness. As a professional soldier who has walked on thin ice during the Cold War, he has clearly realized that the current cabinets application of military means is too childish. The great victories in several previous operations have made them forget about the old events of Goryeo and Annan. They have excessively abused force, and they have used excessive force against opponents whose level is far lower than themselves. This is by no means a good sign for an army. . However, as a purely military department, the Joint Chiefs of Staff itself does not have the power to make decisions under the modern command mechanism, so it can only make suggestions where possible.?????Of course not! ?Albright''s answer directly made Sheldon''s eyes darken. But no matter what we do now, there is no way they can withdraw from the agreement... The latter is still trying to save the situation. But people often cant hold on when they cant hold on. ??Albright is currently in a state where his defenses have been broken: "We must teach China and Europe a lesson now. Otherwise, if we allow them to cooperate, not only will our efforts in the past period be in vain, but it will also affect the prestige of our speeches in the future. If we can''t even deal with China and Europe, how can we talk about leading the world? ? "Moreover, even if the agreement cannot be withdrawn, it can still be delayed at the implementation level. The euro exchange rate has not recovered much now, only 2%, which shows that the wait-and-see mood in the market is still there. As long as the Chinese people dare not take action immediately , the newly built confidence will collapse again, and it will collapse faster than before..." Sheldon has secretly scolded this crazy woman countless times. He said in his heart that even if we take action, we will not be able to cause much damage to China and Europe. At most, we can only save some face... ?Of course, you still have to change your words: But the risks behind this There will be no risk. ?Albright interrupted Sheldon directly: We pay you 270 billion U.S. dollars every year. Do we dare not take action just because a plane crashed a few days ago? Hearing her talk about the military expenditure issue, William Cohen, who had been watching the Donkey Party jokes just now, couldn''t sit still. He has served as Defense Minister for two years and plans to serve for another two years. When the next Xiang Party cabinet comes to power, he will retire and go back to open a company to specialize in the internal business of the US military. Now he even has the company name and operating structure. All thought out. ??If there is a mistake in military expenditure, it will undoubtedly be equivalent to taking money out of his cornucopia. ?? But now Cohen has become a veteran, and he knows that if he expresses his position at this time, he will probably take the blame in the future, so he directly diverts the trouble to the east: This matter should be left to our Commander-in-Chief to make a decision... Lets just follow the plan we made before Sheldon felt that his high blood pressure was about to break out, but he had no choice but to stand up, salute towards the desk, and then turn around and leave... ?That evening. Whiteman Air Force Base, Missouri. ??Brigadier General Bonn Marlott, who had just put on his dark green flight suit, held the mission document marked "SECRET" on the cover in his hand, and walked to the concrete hangar not far away with his partner Colonel Sempney Statham. At this time, the huge hangar door has been opened, and several flying-wing stealth bombers are parked inside. B2 "Ghost". The original purpose of this aircraft design was to rely on stealth and low-altitude penetration capabilities to carry free-fall nuclear bombs into the vast Siberia and hunt for land-based intercontinental ballistic missile launchers operating there. However, when it was actually put into service in 1997, the imaginary enemy had long since ceased to exist, and it could only carry out some ordinary bombing missions with far lower risks than expected. At the end of last month, the B2 bomber completed its first combat mission in its career. Of course, its just a test. According to the original plan, the Allied operation did not require a second sortie of this strategic weapon. But a few days ago, the 509th Bomb Wing suddenly received an order to re-enter combat readiness, and received a new top-secret mission this morning. Only the captain, Brigadier General Marlott, knew the specific mission information, and even Colonel Statham could only be informed after the plane took off. The two quickly came to the B2 scheduled to be used for the mission. ??Although he has mobilized this unit to serve for nearly three years, Colonel Statham is still shocked by the appearance of this aircraft every time. Just like the alien battleships he saw when he was a child. Since there is no vertical tail, the aircraft number is written on the nose landing gear door. 890127. On the main landing gear door, the name of the aircraft is written: Spirit of Kansas Strategic bombers like the B2 are extremely costly and rare in quantity. Each one has an extraordinary meaning, so just like the warships of the Navy, they have their own names. ?This one is called "The Spirit of Kansas." As usual, Marlott and Statham signed the flight mission sheet handed over by the ground staff, then climbed into the cockpit one after another along the ramp behind the nose landing gear, and began to perform various pre-takeoff inspections according to the checklist. . In the weapon selection interface, Statham saw 6 GBU-31 joint direct attack munitions. ?Basic flight data, such as weapon load, should have been informed to the pilot during the mission briefing, but this process was not followed during today''s mission. Instead, Brigadier General Marlott took him directly onto the plane. ?This made Statham feel a little different. Half an hour later, the Spirit of Kansas bomber drove down the taxiway to the end of the takeoff runway. As the two pilots pushed the four sets of throttle valves to the end at the same time, the four F118GE100 engines burst out a total of 33.8 tons of thrust, pushing this behemoth weighing more than 150 tons to slowly accelerate on the runway. After a taxiing distance of about 1,000 meters, Brigadier General Marlott pulled the control column backward. With a feeling of overweight, the black-painted aircraft lightly left the runway and quickly disappeared into the vast night sky... (End of this chapter) Chapter 695 Precision guidance went awry Chapter 695 Precision guidance...guided astray ? ? Thanks to the high lift-to-drag ratio of the flying wing layout and its weak sensitivity to cross winds, the B2''s takeoff process is relatively smooth and fast. However, once it leaves the ground, it is not an easy-to-control aircraft in the air. Especially because there is no vertical tail, B2 can only generate yaw moment by controlling the two outermost pairs of control surface slits. The control efficiency and stability of the yaw axis are very poor. Therefore, throughout the climb, the two pilots were concentrating on their own control tasks, and there was no other communication except necessary passwords. ?It wasn''t until the Spirit of Kansas entered the cruising altitude that Colonel Statham relaxed a little and looked at the mission briefing placed on the left side of the cockpit. Brigadier General, our specific mission is... Marlott, who was next to him, did not speak. He was still staring at the front attentively. He held the joystick tightly with one hand and handed the file to Statham in the co-pilot seat with the other hand. In fact, although air force commodores and even higher-ranked air force commanders will theoretically retain their flying qualifications and aircraft, the number of training flying hours in peacetime is far less than that of the flying backbone of the captain level. This is especially true in the strategic bomber force. ??He must be the captain today simply because pilots with too low a military rank do not have access to enough confidential information. ??Yes, even this mission briefing is still incomplete. There is only simple content such as "how to fly and where to bomb", but there is no mention at all of the specific target to be bombed. ?Hence, Statham was still confused after taking it apart and reading it from beginning to end. ?According to the requirements, they will fly for more than 30 hours and conduct two aerial refuelings over the North Atlantic. However, the ultimate goal is to drop six 2,000-pound guided bombs at a seemingly unremarkable coordinate... Brigadier General, the specific goal is... ?When he asked this question, various possibilities including chemical weapons to dirty bombs flashed through Statham''s mind. Otherwise, it is difficult to explain why they were rushed to send them on a second mission less than a month after the first operational test. Even if a second test is to be conducted, preparations should be started at least a few days in advance. Especially when a stealth bomber was lost just a few days ago, we should be more careful. After all, the B2 is not a tactical aircraft like the F117. If there is anything wrong with this baby that has just been in service for two years and has only 21 aircraft in total, it will be a huge loss even for the wealthy US military. Not to mention that if it is a battle damage, the continuous loss of stealth aircraft will also be a huge blow to the deterrence force that the military has finally re-established. Hearing his subordinates question, Marlott also felt a little overwhelmed. After thinking for a while, he still shook his head: I dont know, just follow the instructions. Actually, the Brigadier certainly knew that. ??But he himself felt that this mission was really outrageous, and he was afraid that nothing would happen after it was completed. For Colonel Statham, who had a bright future, it was better to know as little as possible. At least the psychological burden will be lighter... "But don''t worry, what happened to the Nighthawk before was because the idiots in the Naval Aviation took it upon themselves to reduce the mission frequency of EA6B, which allowed the opponent''s radar to seize the opportunity. This time, the Joint Chiefs of Staff specially coordinated the Marine Corps'' first 2 Electronic Warfare Squadron, they will take off 4 EA6Bs and provide cover in two batches after we enter the theater airspace. Even if the early warning radar happens to see us, the missiles will not be launched. " ??Although Statham did not ask, maybe it was to divert his attention, or maybe the brigadier himself was worried about the same thing. In short, Marlott changed the subject and took the initiative to mention the previous F117. Since the Army and the Air Force are essentially the same thing, this blame is naturally thrown to the Navy. As a professional soldier, Statham originally had no intention of pursuing the matter, but now his attention has been successfully diverted: "If you let me say, it was not a wise decision for the Air Force to retire all EF111s the year before last. It is impossible to fully cope with the air defense pressure by relying on the F16CJ alone. As for asking the Navy or Marine Corps to provide us with electronic warfare cover, it is not a long-term solution... " "It''s too late to say this now, and it''s not something you and I can decide." ? ?Marlotts mind is a little confused now, and he is not interested in complaining about the Congressman with his subordinates: "This flight will last 30 hours. You should take a rest first. We will take turns to be responsible for the flight..." 15 hours later. Over the Adriatic Sea. ?An EA6B electronic warfare aircraft that had just taken off from the Roosevelt found the "mysterious target" that needed cover at an altitude of 8,500 meters according to the scheduled flight plan. There is not much difference between using two aircraft and one aircraft for accompanying electronic cover. Therefore, the other Prowler that took off earlier has already gone to the combat airspace in advance to conduct air defense suppression operations against possible threats. AV12, this is Echo 01, we are about to enter the combat zone airspace, do you receive it? ??On the Spirit of Kansas, after hearing the call from the electronic warfare aircraft, the two pilots finally relaxed after being somewhat nervous along the way. Based on past experience, except for the old rival Homeland Defense Force and the lightning-fast MiG-25 in Operation Desert Storm, no enemy has been able to effectively resist the electronic suppression of the EA6B. Echo 01, received by AV12, we are about to descend to 5000 altitude. JDAMs of this era were not widely equipped with later extended-range gliding kits, so their flight distance and maneuverability were limited, and there were also strict restrictions on throwing height and speed. "receive." ? Brigadier General Mallot gently pushed the control column while retracting the throttle, and piloted the aircraft into a shallow dive altitude. At the same time, Statham, who was in the co-pilot position, began to set the aircraft''s final attack route on the integrated display in front of him, and input the coordinate information of the target for the six JDAMs in the magazine. April 17, local time, at 23:40 in the middle of the night. The Spirit of Kansas began to enter the preset bombing route. AV12, Echo 02 reported a P-band radar signal source. The frequency band is difficult to interfere with, but it is preparing to carry out destructive air defense suppression. Another C-band signal source has been completely interfered by us and there is no threat. Of course, the B2 aircraft is also equipped with a radar warning receiver, but as a stealth aircraft, this equipment is of little significance because it is impossible to judge whether the radar wave has actually detected itself. ?From the cockpit, you can see a flash of fire about a few kilometers away. It should be Echo 01 launching an AGM88 anti-radiation missile towards the signal source. ??The overall performance of this model in this operation was not good, with a hit rate of only single digits, but at least it was able to force the opponent to shut down and move their position. Open the magazine. ??As the command was given, Colonel Statham flipped the lever switch on the left-hand panel, and the four huge magazine doors on the belly of the aircraft opened. This is the most vulnerable moment for stealth aircraft, especially the fire control radar deployed in the side direction, which can relatively easily capture the continuous echo signals. The F117 last month was shot down by an anti-aircraft missile during this process. Fortunately, neither EA6B reported any other suspicious signals. Marlot stared outside the cockpit. Although the ground was relatively dark due to the blackout, he could still see a sparkling river with the help of the moonlight. That is a landmark of this mission. Drop a bomb. At 23:43, Brigadier General Bonn Marot, commander of the 8th Air Force of the Air Force, and Colonel Sampny Statham, commander of the 509th Bomb Wing, jointly pressed the bomb release button, and six GBU31 aerial bombs were loaded from the magazine. The aircraft whizzed down, flying according to the target set by the program. ? After completing the bomb release, Statham closed the magazine as quickly as possible, and then breathed a sigh of relief: Fortunately, everything went well. Just like half a century ago The 509th Regiment is the only unit in human history that has used nuclear weapons in actual combat, and it has always been a source of pride for this unit. According to the flight plan, they will make a 180 turn and embark on a return journey in about two minutes. Can you see whats going on on the ground? In order to achieve ultimate stealth, the B2 bomber is not equipped with a visible light sight that can be used for earth observation (nuclear bomb dropping does not rely heavily on accuracy). In addition, the first-generation JDAM does not have a two-way data link, so the bombing effect can only rely on the naked eye. look. But at this time, Marlott had already controlled the aircraft to start climbing, and the cockpit with a flying-wing layout had almost no downward view, so Statham did not observe the effect of the bomb. I cant see it, but since it has been successfully cast, there shouldnt be any problems. ?Statham shook his head: Lets have a nearby tactical aircraft with a pod confirm it later. ?Marlot just asked casually, not really wanting Statham to see anything. Hearing what the latter said, he nodded. Sit tight and prepare to turn. at the same time. ?Six aerial bombs that were quietly approaching their targets in the night sky suddenly began to receive new GPS coordinates and determined that they had deviated from the "correct" flight path. ?Under the control of the navigation system, the wings at the tail of the bomb began to move, trying to align the flight direction with the set target. Obviously, this is where the GPS jamming equipment that was sent nearby began to work. Since this area is home to foreign institutions and media, the coalition has never used weapons here in the past, and has not found any abnormalities in the GPS signal here. ?Of course, they will find out soon enough. In fact, according to Chang Haonans calculations on the map, when mode 1 is turned on for jamming, the bombs targeting the jamming device itself will be transferred to an open space a few kilometers away. But after all calculations, he forgot that the JDAM of this era did not have an extended-range gliding kit, and it was impossible to make a large enough route change. At 23:45, six bombs "accurately" hit the roof of the Falcons Hotel, the tallest building in the area. ?Three of the bombs located slightly further away from the false target identified a problem with the route and turned off the fuses before hitting the target. But the other three detonated almost simultaneously after penetrating the entire floor. For an ordinary civilian building, there is no difference between a 6-ton bomb and a 3-ton bomb. ??And because the terrain is high enough, it happens to be the scene where many media are reporting or live broadcasting the Allied operations... (End of this chapter) Chapter 696 Shoot down B2 Chapter 696 Shooting down B2 Beijing time, 5:45 am. ? Ding Gaoheng was in the office of the Committee of Science and Industry, staying up late to watch a foreign TV stations live report on the Allied operations. ??Of course he couldn''t be waiting for anything on purpose, but he felt inexplicably restless last night and couldn''t sleep after tossing and turning, so he had no choice but to turn on the TV to kill time. ?However, no matter how much he suffers from insomnia, he is still an old man who is almost seventy years old. After staying up until the early morning, he is basically already in a half-asleep and half-awake state. ??The report by the female reporter from AFP on TV is more like a hypnotic background sound. ?However, at this moment, a sound like thunder suddenly sounded, startling Ding Gaoheng, who was dozing off on the sofa, to jump. But when he calmed down and looked at the TV screen in front of him, he found that the picture inside had disappeared. "Um?" Ding Gaoheng smelled the smell in the room subconsciously. His first reaction from the thunder just now was that the TV was broken. But there is no burnt taste as expected. ??And if you look closely, you will find that although the screen is black, the logo of France Television 2 and the banner subtitles below are still there. It is obviously not a problem with the TV or the receiving antenna. But the signal source for the broadcast was cut off. Its almost six oclock Ding Gaoheng looked back at his watch. He had no intention of going back to sleep. Instead, he picked up the remote control next to him and changed the channel, preparing to take a look at the current situation in the Balkans. ??Although Western journalists are considered not to be very fast, in this era there are only a few that can carry out real-time television broadcasts around the world, so there is very little room for choice. Why is there no signal? He changed several channels he usually watched in succession, but the situation was the same as before. There is a station logo, but no picture. While Ding Gaoheng''s head was filled with questions, the Reuters broadcast signal finally switched back to the studio. The host in London also looked confused and said that their front signal was suddenly cut off. The reason was currently being investigated and the TV station would During this time, other content will be temporarily inserted. Perhaps the Americans have released electromagnetic interference again ?While thinking this, he stood up to wash up and start handling today''s official duties. He had not yet realized that he had just witnessed an event that could rewrite the course of history almost live... at the same time. Balkans region. The USS Spirit of Kansas bomber, which had just completed bombing, had flown to the end of the bombing route according to the route plan. The ailerons on the rear edge of the flying wing drove the heavy aircraft to slowly roll to the left, while continuing to climb to increase the flight altitude as quickly as possible. Although the two EA6Bs have suppressed all surrounding high-threat radar signals, the flight altitude of 5,000 meters when dropping bombs is not out of reach even for some portable air defense missiles, so it is better to return to the high-altitude route of about 10,000 meters as soon as possible is safer. Echo 01, our radar warning receiver shows that the previous meter-wave radar signal is still working. Please confirm the situation? Colonel Statham on the co-pilot asked the nearby EA6B on the radio. Even for the US military, how stealth aircraft pilots process RWR information is still a huge problem, but now this task can be completed by the electronic warfare aircraft next to it. "The deployment position of that radar is very awkward. The anti-radiation missile needs to find another angle to improve the hit rate. Echo 02 is adjusting its route, but the missile launched by my aircraft just now has hit the previous C-band signal source. Currently, the entire There are no high-threat radar signals in the airspace. In this operation, the AGM88 anti-radiation missile was an eye-catching performance. In fact, to a large extent, it was not because of poor performance, but because the urban environment was too complex. This kind of thing designed in the Cold War era was never considered for use under such conditions. . Hearing that the biggest threat had been destroyed, Colonel Statham breathed a sigh of relief, and then realized that he had just been paying attention to the RWR, so he forgot to push the throttle on the left. Fortunately, the plane had just started to climb and turn, and the speed did not drop particularly badly, so he quickly made up for this action. ??There is a disadvantage when two pilots are respectively the air force commander and the wing commander. Although they are all senior pilots with thousands of hours of experience, the intensity of recent training has been relatively low, and it is easy for some omissions to occur under pressure. However, this inconspicuous omission was a golden opportunity for Lieutenant Colonel Zoltan Dani, who had been ambushing on the ground for a long time. ?However, this is actually not accurate. Because he actually commanded the troops to shoot down a stealth fighter half a month ago. After achieving that world-shocking victory, Danny did not stop studying the patterns of enemy air force activities. Soon he discovered that although stealth aircraft are invisible to radar in most cases, they can judge whether the other party is currently deploying stealth aircraft through the activity trajectories of other aircraft in the airspace. ?For example, right now, there are only two solitary EA6Bs over the entire city. All tactical targets that look like F/A18s, Mirage 2000s or F16s were concentrated and withdrawn to the north of the 45 north latitude line or south of the 44 north latitude line about half an hour ago. This is a signal that stealth aircraft are about to enter the market. Therefore, he immediately instructed the three (one active and two passive) P18 radars that were intermittently powered on to enter continuous working mode. At the same time, he also turned on another C-band fire control radar to prepare for firing with anti-aircraft missiles. in order to distract the other party from the threat of the former. . ?In the past half month, his missile base has used up most of its ammunition, and it is impossible to effectively track targets under electronic interference. Keeping these fire control radars no longer has much tactical value. For the lieutenant colonel, the killer move this time was the radar upgrade kit obtained from an old friend on the eve of the Allied Operation, as well as the eight 100mm anti-aircraft guns that were pulled out of the warehouse just a few days ago. Among the things sent by the Buryat businessman, there was a complete operating manual and firing chart for this anti-aircraft gun. ?However, in order to increase the firepower density, he did not fully refer to the manual''s requirements for a circular arrangement of anti-aircraft positions. Instead, he deployed all artillery groups in the middle of a building ruins near the safety zone and pointed them in the same direction. As for the deployment density, it is far beyond what is allowed by any operating regulations... If things are urgent, we can''t take care of so much. Because the area is filled with foreign agencies and media, few aircraft, especially electronic warfare aircraft, will be active in the area except for the first two days of the Allied operation. While maximizing concealment, it also almost limits its own shooting range. As for what to do if the target appears in another direction... It''s over if you don''t fire. Since it was already riddled with holes, it might as well miss a few more planes. Preserving yourself is the most important thing. But today, he really got the bet. After the three P18 radars were activated, he quickly received a report from the radar operator. ?Besides the two EA6Bs, there was indeed a sneaky target flying towards the air defense position he deployed. Lieutenant Colonel, the ammunition has been loaded and the firing elements are being adjusted according to the radar signal. Do you need to fire immediately after the target enters the killing range? ??A captain in charge of the firing position asked over the intercom. ?Danny wanted to nod in agreement immediately, but then he thought of a better way. "Don''t be impatient first. See if the other party has any intention of turning. If so, wait until they slow down before firing." ?This multi-point passive detection system is good in every aspect, but the target update frequency is a bit slow, and he has no chance to conduct a test launch, so he is really not confident enough. But what if the other partys target is us? ??The captain asked. ?Judging from the opposite course, it does seem to be rushing straight towards them. Then accept it. The lieutenant colonel replied with an indifferent expression: "If the opponent really finds us, they won''t be able to escape anyway, and I believe in the concealment of this position." At this point in the war, he no longer cares about these things. The person on the intercom was obviously paused for a moment, and then replied: "receive!" Soon, the signal reflection on the radar screen suddenly became stronger for a moment. This is a signal for a stealth aircraft to open its magazine. Danny''s palms gradually began to sweat. About a minute later, he heard a continuous loud noise in the distance. Obviously, the other party is not coming for them. Almost at the same time, the opponent began to make the turn he had been waiting for. ?Although turning and climbing itself will not cause the aircraft to lose speed particularly seriously, from the perspective of the projection of artillery damage, it will indeed be easier to hit. With the help of a firing list for each gun crew, the eight -19s aimed the muzzles at the position reported by the radar operator as quickly as possible. Fire! As the lieutenant colonel''s order was issued, the eight anti-aircraft guns fired a round of short fire that lasted about half a minute and totaled about 60 shells. ?Almost at the same time that the ground artillery fire began, Colonel Statham in the Spirit of Kansas made up the action of pushing the throttle valve. In fact, if he does not perform this action, the aircraft that is constantly losing speed is likely to be too late to fly into the kill zone... ?Furthermore, the powerful electronic jamming capability of EA6B is even enough to affect the working conditions of radio proximity fuzes. ??But the batch of artillery shells that Lieutenant Colonel Danny dug out from the warehouse did not have any fancy tricks, and they even used the oldest time fuses. The kind that is hand-tightened before firing. In short, everything is so coincidental. ??The first gray smoke cloud exploded almost directly in front of the plane. "Um?" For pilots in the late 1990s, "being shot by a large-caliber anti-aircraft gun" was something that was completely unimaginable. So the two people in the cockpit looked at what was happening in front of them almost blankly. But in the next moment, the outside of the plane was almost enveloped in dazzling flashes of light. No, we were attacked by anti-aircraft fire! Echo in the distance After pilot No. 1 heard such a call, there was no sound from the radio. ??The two electronic warfare officers sitting in the back seat of the EA6B watched dumbfoundedly as a dense plume of smoke appeared a few kilometers away, followed by the flames of the aircraft burning in mid-air. Thanks to the leader of book friend IDK_WHP for the reward! (End of this chapter) Chapter 697 Radar catches ghosts, anti-aircraft guns drive away evil spirits Chapter 697: Radar catches ghosts, anti-aircraft guns exorcise evil spirits ?Two 100695mm.R shells exploded about 15 meters to the right side of the Kansas Spirit. The flying fragments shattered almost the entire outer part of the wing. ??If it were a conventionally configured aircraft, such damage might not be fatal. But for the flying-wing B2 bomber, its core flight movements almost all rely on this part of the action surface. As a result, the aircraft under attack began to bank uncontrollably to the right. It was only then that Marlott and Statham in the cabin came to their senses and realized that such continuous and evenly distributed explosions should come from anti-aircraft guns rather than anti-aircraft missiles. ?For a moment, the two of them even had the illusion of time and space intersecting, thinking that they had gone back to World War II to fly B29... ?But thinking back on it, the pilots instinct is still there. Almost at the same time as the first two shells exploded, they tried to steer the aircraft to the left to avoid the densest part of the anti-aircraft fire as much as possible. ??However, after losing the right side of action, this action is almost destined to be impossible to complete. The plane immediately got into the denser barrage that followed. Subsequent fragments quickly shattered the fuel pipeline and engine, and the leaked high-temperature gas quickly ignited a long flame behind the fuselage... Ready to eject! Colonel Statham, who had more combat experience, first realized that it was impossible to save the Spirit of Kansas. At this critical moment of life and death, he naturally did not consider the impact of losing a precious strategic bomber, and in this kind of situation The risk of parachuting behind enemy lines is that you can only prepare to escape immediately. "Wait a moment!" ??Malott''s qualifications are more experienced. His instructor when he was in flight school participated in the battle in Annan, so he can still remember some key points at this time. No matter how shabby an airplane is, it is still a titanium or aluminum alloy box, which is much stronger than the human body when faced with debris flying all over the sky. ??There''s a lot of explosions going on outside right now, and popping them out is a sure way to die... Fortunately for the two of them, the anti-aircraft guns on the ground that had been in service for almost 40 years, even though they had been urgently maintained after being dragged out, were equipped with old ammunition that was also old and could only dispersion. It''s pretty unsatisfactory. Hence, after the explosion, the riddled aircraft still maintained its most basic structural integrity. ?However, it has also begun to enter an uncontrollable spiral. ??The two pilots quickly pulled the ejection handle between their legs and were thrown into the night sky in an extremely awkward posture. This all sounds long, but in fact, only half a minute has passed since the first shell exploded. Not far away, the crew members of EA6B also recovered from the initial shock. The co-pilot almost hurriedly switched the radio to the frequency for contacting the aircraft carrier and shouted loudly: Echo 01 calls the Roosevelt! Echo 01 calls the Roosevelt! AV12 is hit by anti-aircraft fire! AV12 is hit by anti-aircraft fire! The plane is burning and we cant see if the pilot successfully ejected! ??The authorities were blind to the onlookers. Although it was night, he could clearly see it from outside. It was a dense barrage fired by anti-aircraft artillery. ?At the same time, the pilot, who was worried about being attacked by the same attack, also quickly controlled the aircraft to make an emergency climb. Echo 01 currently only carries an anti-radiation missile, so there is no good way to deal with it. However, the threat of anti-aircraft artillery to maneuverable tactical aircraft is very limited, as long as the route is not too rigid. ?God knows how the other party happened to capture the time window when the Spirit of Kansas was climbing and turning. The content of their call was obviously so shocking that the radio was silent for a few seconds before responding: Were you being attacked? Or... Obviously, the command staff on the Roosevelt still did not fully realize the seriousness of the situation. AV12 was hit! Its falling! ??The impatient co-pilot interrupted the other party directly and repeated the current situation. ?At this time, the other party finally reacted: Please report the location where AV12 was hit. Their echo signal cannot be seen on the radar. We are coordinating the combat rescue team..." The voice can be heard to be obviously trembling. Even for the US military, this kind of mission spanning three services is not easy to coordinate, especially now that there is a big mess. Furthermore, the B2''s stealth performance is fair to both friendly and enemy radars... The crash location is...in the 100 direction of our plane, about 2.5 kilometers away..." The night sky in the Balkans has now returned to silence, and the crew members of Echo 01 can only report a general direction based on estimates: In addition, there should be an anti-aircraft gun position near the crash site, and subsequent air power and search and rescue teams must pay attention..." Actually, Echo 01s worries are a bit unfounded. ?After completing the half-minute round of short firing, Lieutenant Colonel Danny did not even have time to confirm the results of the battle, so he commanded his men via remote control to quickly pack up their positions and prepare to evacuate. ??The U.S. militarys air defense suppression operations must be respected. ??The position squeezed among the ruins of the building must have been too late to move. The only way to do it was to put on a hasty disguise and evacuate the people quickly. In any case, the most important thing in this battle are the two passive detection radars that do not emit any signals throughout the entire process. There is no need to force the remaining things, and they will be gone if they are gone. But the hundreds of experienced veterans under his command must be preserved. ?There is still a battle to be fought later. Battal Commander! At this moment, the staff officer outside the command cabin suddenly poked his head in: Hit! We hit! Danny was stunned for a moment after hearing this, then put down the walkie-talkie and almost stumbled to the outside of the command cabin - ?Just in the direction where he had just directed the anti-aircraft artillery group to fire, a flash of fire was falling towards the ground at an almost vertical angle... "This... can really hit..." ?Danny muttered to himself in disbelief. After all, this was his first battle using the new radar and anti-aircraft artillery linkage, so he actually had no confidence. When the order to fire was just given, the expectation in my mind was that I would be satisfied if I could injure the target. The result was a big one. As he watched, Danny felt that his vision was a little blurry. As an air defense force commander, although he achieved a world-renowned result at the beginning of the Allied operation, for more than half a month after that, he could only watch the opponent''s planes coming and going above his head. He was free to ravage the land and people he had sworn to protect. All the shame and grievances in it were finally released at this moment... The younger staff officer next to him had a much simpler idea. ?Looking at the slowly falling fireball in the night sky, he could not hide his excitement in his tone: Battalion Commander, I feel that the movement this time... is bigger than the F117 we shot down last time... O As soon as he finished speaking, a series of explosions came from the distant suburbs. As if verifying the statement just made. Danny, who was still immersed in emo just now, was also awakened by this huge noise: It seems...it is. ?Although it was hard to see clearly at night, the thing that fell just now was obviously much larger than a normal tactical aircraft. Bigger than F117but still a stealth aircraft The lieutenant colonels eyes suddenly lit up: B2 Wewe may have shot down a B2 After calming down the turbulent mood in his heart for a while, he turned to look at the staff officer who was still standing beside him: Quickly, notify the ground troops, assemble immediately, and control the crash point before dawn. Be sure to leave enough image data! Also, let each unit search within a limited range nearby to see if they can find something like a parachute, but they must return to concealment before dawn! Here is his quality as a veteran. He judged the priorities of the matter almost immediately As soon as daylight comes, ground force activities must be suspended. Under the premise of limited time, the location of the plane wreckage is relatively certain and can be found by sending people there, which also involves the authenticity of the record. ??As long as it can be confirmed that the latest strategic bomber has been shot down, the international impact may not be less than that of sinking a warship, which is of great significance to the current international outlook. Relatively speaking, the pilot is secondary. First of all, he didnt know whether the pilot had parachuted. Secondly, even if he had jumped, he didnt know where the pilot would float to. The efficiency of aimless search was very low. So the main thing is to try your luck, there is no need to force it. "yes!" The staff officer also woke up from a dream. He quickly raised his hand and saluted the lieutenant colonel, and then trotted away, preparing to go to the nearest army command post to seek support. ? After issuing this series of orders, the lieutenant colonel stood on the spot and took a deep breath. ?For him, this battle was originally a struggle without any hope. But at this moment, the situation seemed to have changed slightly. ??If you can achieve iconic results in a row, then it may not be impossible to allow strong enemies to retreat in advance. Its just that he doesnt know it yet. Shooting down a B2 is indeed big news. But compared with another thing that happened tonight, it is almost nothing worth mentioning... (End of this chapter) Chapter 698 Did you really capture B2? Chapter 698 Did you really capture B2? Beijing time, April 18, 1999, 7:30 am. Chang Haonan, who had already flown to Jiangcheng, had just gotten up. After washing and having breakfast, he went to the workshop to continue checking the installation progress of the die forging press. ??Although Yan Yongnians ability in engineering is reassuring, he is after all the chief engineer of the die forging press project. Even if he has multiple positions and special circumstances, he cannot always control remotely from beginning to end. You have to come and see it both emotionally and rationally. ?However, before he could enter the construction site cafeteria, the cell phone in his pocket rang. In 1999, caller ID was already a relatively common feature on mobile phones. Chang Haonan was not short of money now, so naturally he couldn''t always use the one he bought first, so he took it out and immediately saw that it was Ding Gaoheng calling. of. Hello, Director Ding? He pressed the answer button. Xiao Chang, please go back to the capital as soon as possible. On the other side of the phone, Ding Gaoheng''s tone was more serious than ever. Chang Haonan had just gotten up. He was stunned when he heard these words. He took a moment to react before coming back to his senses: Okay, Ill leave now and try to get back before the afternoon. Unconfidential lines, or even cell phone calls, must not involve any substantive content. Ding Gaoheng didn''t even ask him to find a confidential line to call back, but directly asked him to return to the capital. It was obvious that something big had happened. It must be said face to face. So there is no need to ask. ?So, he immediately found Yan Yongnian, made some arrangements for work, bought two buns from the canteen, and rushed to the airport with Zhu Yadan to prepare for the return trip. Along the way, he naturally also guessed the purpose of Ding Gaoheng calling him back in such a hurry. ?But before he even got to the airport, there was no need to guess ?Perhaps he felt bored on the road. While waiting for a red light at an intersection, the driver casually turned on the radio in the car. "Let''s go back to the situation in the Balkans. At 11:47 pm local time last night, a violent explosion occurred in a five-star hotel called Falkens. Some people familiar with the matter claimed that it was attacked by a precision-guided bomb, but it is still There has been no official statement on this incident..." "It is reported that Falkens Hotel is one of the most luxurious hotels in the area. The building is 19 floors high and has a rooftop with a wide view. Therefore, it has also become a filming location and residence for many front-line media to conduct on-site reports. When the explosion occurred , five international media are reporting that there are estimated to be about 190 people inside the hotel, including at least 120 foreigners..." The local rescue department has carried out cleaning and rescue work on the building ruins, but so far, no trace of survivors has been found For a moment, Chang Haonan''s mind buzzed and went blank. The driver and Zhu Yadan in the front row did not react at all. After all, for the two of them, or for most ordinary people in China, this was just an event that happened thousands of kilometers away and had nothing to do with them. The most I can do is scold Americans a few times. But for Chang Haonan, its a completely different story. He asked almost unconsciously: Yadan, whats the date today? April 18, the third day of the third month of the lunar calendar. ?Zhu Yadan turned back with some doubts: Whats wrong, Chief? "I" ?Chang Haonan''s lips moved slightly, and for a moment he didn''t know how to respond. ?Having just heard the news, his first reaction was Isnt the time right? But after thinking about it, it seems that there is nothing surprising. ?This matter should be closely related to China''s support for the euro. The world today is very different from the previous life, so it is natural for there to be differences in the time when a specific event occurs. After thinking through this level, Chang Haonans next thought was ?So what happened to the Falcons Hotel? He had no map and no memory of the name. But it is certain that the entire Allied operation, and even the entire timeline, has changed as his influence has gradually increased... The news on the radio cannot be very rich in content, and if you calculate it, it was 11:47 local time last night, which is 5:47 Beijing time, and only a little more than two hours have passed until now. ??And its still early morning locally. Leave him alone, there is probably a lot of information that even the countries involved themselves are not clear about. So even Chang Haonan couldn''t guess more details. All we can do now is wait... Five hours later. Chang Haonan, who had been worried all the way, didn''t even bother to wash his face. After getting off the plane, he immediately transferred to a special car that had been waiting at Xijiao Airport and went directly to the third door. Such a big matter is impossible to discuss at the level of the Science and Technology Commission. Wandering around, he was finally brought to the door of an office that was not too inconspicuous. After opening the door, several leaders in military uniforms were already sitting inside. On the curtain hanging opposite, a map of the city is displayed. "Report!" Facing such a group of big guys who have at least two wheat stars, you still have to behave more seriously. While speaking, Chang Haonan glanced around and found that there seemed to be no acquaintance except Ding Gaoheng. Fortunately, everyone has their name tags in front of them, so its not like they are blind. ?But it makes sense to think about it. At this time, the bigger leaders are probably busy calling international hotlines. The head of the conference table was empty. Fu Quanyou, who was sitting first on the left, raised his head and looked at the door: Its Comrade Chang Haonan, right? "yes!" ?Chang Haonan answered simply and neatly. Come and sit. Fu Youquan pointed to an empty seat opposite and said. There is no name tag of Chang Haonan, so he was obviously invited to attend temporarily. You must have heard about what happened in the Balkans last night, right? ?The other party gets straight to the point. "Yes." Chang Haonan nodded: There was an explosion in a hotel, but when I listened to the radio, they said there was no investigation result yet. Fu Quanyou nodded and looked at the curtain on the side: Its already there. Rescuers found three unexploded GBU31 satellite-guided bombs under the rubble, and Having said this, he picked up the remote control next to him and pressed it. The projection then switched to another screen. A mass of dark ruins. Moreover, it has been confirmed that the US military was shot down a B2 stealth bomber last night local time. Chang Haonan was overjoyed when he heard the news. He almost jumped up from his stool and blurted out almost without thinking: "real?" He had spent so much time building a multi-point passive detection system, and this was what he was looking forward to. But expectations are expectations and reality is reality. ??As to whether B2 can be defeated, in fact, even Chang Haonan himself was not sure before. Now I finally have a sense of solidity that the dust has settled. The news photos have been released, how can they be fake? ??Although Li Yongjin, who was wearing an air force uniform next to him, had a tense face, his tone when he spoke was almost like Chinese New Year. It was obvious that he was already happy in his heart, but he was restricted by the occasion and could not express it: "Although the wreckage was badly burned and was later specially bombed, the appearance characteristics of the flying wing are too obvious. Looking at the outer wing section and the W-shaped trailing edge of the tail part, it is impossible to find a second type that matches the models with these characteristics. ?Chang Haonan admitted that at that moment, his heartbeat was unsatisfactory. Spotted byour radar? He still felt a little unsteady and unreal. If I must tell you, this is the other partys military secrets, so I dont know yet. ?Li Yongjin can hardly hold back his expression now: "But considering the actual situation, it is basically certain that the technical equipment and tactics we support were used." (End of this chapter) Chapter 699 It’s all messed up, it’s all messed up (counting yesterday’s events) Chapter 699 Its a mess, its all a mess (counting yesterdays events) Thats really great ?The entire conference room is full of people who know everything about themselves, and Chang Haonan does not need to pretend to be ignorant: This is definitely breaking news Actually, it is very gratifying for everyone here to see Americans being defeated, especially because of their own efforts. Its just that everyone was holding it just now, and no one was too embarrassed to mention it. As a young man in his twenties, Chang Haonan does not have this kind of baggage and is very suitable to warm up the show. ?Hence, as his words fell, the originally deliberately tense atmosphere in the entire conference room instantly became a lot more cheerful. Especially the expressions of several air force leaders can be described as... Police station, two policemen, I think of happy things.gif "yes" Sitting directly opposite Fu Quanyou, Liu Yaoshun, who is in charge of the entire Air Force, tried hard to control the smile on his face: "The B2 bomber has only been in service for two years. It has been promoted intentionally or unintentionally as an all-powerful door-kicking weapon. However, it was shot down by an anti-aircraft gun half a century ago. It is a big setback. Im so embarrassed in front of you! After speaking, he looked at Chang Haonan again: "Unfortunately, the nature of this matter is different from that of the previous bat hunting operation. In a short period of time, I am afraid that even an internal commendation meeting will not be held...So we can only indirectly reward our great heroes in other ways... " The latter took so long to set up this situation, naturally it was not just for the sake of fame, and he immediately waved his hand to indicate that it didn''t matter. We can talk about the rewards later. What is more important now is the subsequent development of the matter. ??Moreover, the work done this time is really too harsh. If the role played by Chang Haonan is exposed, there is no guarantee that the other side will not become angry and take some revenge. This is why he did not even directly participate in the negotiations between China and Europe before. Making a fortune in silence is a sign of humiliation. ?However, at this moment, there was a sudden sound of electric bells outside. ?It is impossible for anyone to enter a top-secret meeting room like this even if it is idle. Even the cleaning staff must have a high level of security. Not to mention that there are a group of important people sitting inside now. Fu Youquan turned his head and glanced at the CCTV behind him. After confirming the identity of the visitor, he pressed a button. Soon, a staff member in black walked in and handed a bulging document bag with a seal in his hand to Fu Quanyou: Chief, this is the information that has just been sent from the Second Bureau. Please take a look. After finishing speaking, he turned around and left calmly. The Second Bureau of the General Staff is a unit specifically responsible for collecting and analyzing intelligence from foreign public information sources. It is only responsible to the Chief of General Staff and higher-level leaders. ?The other people sitting in this conference room right now, even if they are on the same level as Fu Quanyou, cannot be considered leaders of the Second Bureau staff. Fu Youqun quickly tore open the seal and took out a pile of newly printed documents... Hours ago. On the other side of the world, in Arlington, Virginia. Henry Sheldon stood up, put on the coat hanging on the back of his chair, and prepared to leave the office. But as soon as he reached the middle of the office, he stopped. After hesitating for a while, he returned to the desk, took off his coat again, hung it back on the back of the chair, and then raised his wrist to check the time. ?It has now been almost 15 hours since the Spirit of Kansas bomber took off, and the mid-air refueling process has been successfully completed. According to the pre-planned time, the results of the air raid should be reported back at this time. ?Sheldon is not worried about whether the mission itself will be successful In his opinion, or in the opinion of all those familiar with the matter, taking off a state-of-the-art stealth strategic bomber across half of the globe to bomb an opponent with weak air defense under the cover of complete electronic warfare is a sure win no matter how you look at it. What he is worried about is the possible subsequent reactions to this crazy plan. At the time, no one in the Oval Office had thought about what would happen after the air raid. After all, it was not a carefully thought-out decision, just a hysterical impulse. However, as the leader of the Joint Chiefs of Staff, he has to think about it. ?Although theoretically speaking, the Joint Chiefs of Staff and the Air Force are only the final executors, and at least they should not bear the main responsibility for any consequences. But in fact it is obviously a different matter. To put it bluntly, if the S3 season really starts, we wont have to wear military uniforms to fight in the end. Since the Civil War, the Shelton family has served in the U.S. military for five consecutive generations. They are a typical military family and are not afraid of going to the battlefield. But we cannot go to war in such a hazy manner. Thinking of this, he lit a cigar, hoping to calm down his mood a little. But the usually rich and pure taste and delicate smoke lost their allure, and after only two puffs, it was thrown back on the cigar stand. ?Just when Sheldon stood up again and was about to go to the Air Force Ministry to see the situation, there was a rapid and chaotic knock on the door outside. "Come in!" He sat back in his chair, took a deep breath, and tried not to look so agitated. Don''t lose your grace in front of your subordinates. ?However, the next second, the office door was pushed open, and the secretary almost stumbled in. "General Sheldon, we...we..." ?The subordinate''s slightly panicked performance made Sheldon''s heart sink. ?His secretary is someone who is used to seeing big scenes. He looked so lost and lost. It was obviously a huge shock. ?However, Sheldon told himself that at this time, he had to stay calm. Dont be anxious, slow down and speak slowly, the sky will not fall ??However, the first words the secretary spoke made Sheldon almost lose his success: General, the USS Theodore Roosevelt reported that our bomber on a mission was shot down. The latters arms trembled obviously: The bomberis It was the USS Spirit of Kansas. A Marine Corps EA6B saw it with my own eyes. It was hit by a round of covering anti-aircraft fire and then crashed. The secretary''s voice was trembling. As mentioned before, although he had been on tenterhooks in the past dozen hours, he had always been thinking about how to calm down the subsequent storms after the successful bombing. He had never considered "losing a B2 bomber." possibility. The huge psychological impact made Sheldon, who thought he had seen too much, not know how to reply for a moment. The F117 was shot down before, which already put him under a lot of pressure from public opinion. ??The press release given to the media at the time stated that the F117 was already equipped more than ten years ago, and the military now has more advanced models, so there is no need to worry about the technological leadership being broken. ?That "more advanced model" is naturally B2. ??As a result, there has been a wave of publicity with gongs and drums, and less than a month later, the new model that has just been promoted to the altar has also suffered losses... You must know that if the myth of B2 is broken again, the US military will no longer be able to come up with updated equipment. F22 has not yet entered service, and the JSF project has only just begun. ?? And if the military myth goes bankrupt... Sheldon couldn''t imagine what would happen next. Wheres the wreckage? And the pilot? He asked quickly. The secretary naturally understands the meaning of his leader: The location of the pilot has been determined and search and rescue operations are currently underway. As for the wreckage...the Navy has dispatched an aviation squadron to search the reported crash area. Once found, it will be further destroyed. Sheldon didn''t even know if he should be relieved. ?Although he is from the Army, based on experience, it should be difficult for an aircraft wreckage as big as a B2 to be destroyed to the point of being completely unrecognizable. ?However, the secretarys next words quickly made him give up on this issue. Andand Sheldon frowned and glanced at the secretary who was hesitant to speak: Having said that the bomber crashed, what could be worse? ?He picked up the cigar on the table next to him and took a long puff: Say it! General, although there has been no formal confirmation of the bombing results yet, based on intelligence gathered from the front and from various sources in Europe The secretary even stuttered when speaking: The bomb we dropped may have hit a hotel where a lot of media are stationed The cigar in Sheldon''s hand fell to the ground. ?There was only one thought in his mind at this time: The sky is falling (End of this chapter) Chapter 700 Internal strife, we cant fight anymore Chapter 700: Internal strife, cant go on anymore... Silence. An oppressive silence. ?Two people, one dared not speak, the other could not speak at all. For a time, the huge office was quiet except for the humming sound of the air conditioner outlet. ?However, Sheldons ears were still echoing what the secretary just said. Originally, the United States and the European Union were already very unhappy because of the euro issue. ??If this news spreads now, how the Allied operation will end may be a problem. As for himself, he can probably start summarizing his career directly. Sheldon has been in the army for forty years and thinks he is used to all kinds of ups and downs, but... I have never seen this scene before.jpg I dont know how much time passed, but Sheldon finally felt that his consciousness, which was about to leave his body, returned to his body, and his brain gradually regained control over the muscles of his body. So he quickly asked: "have" As soon as the first word came out of my mouth, I found that my throat was as dry as sandpaper, and the sound I made was comparable to scratching a blackboard with my nails. Upon seeing this, the secretary quickly handed the cup on the table to Sheldon''s hand. Is there any very clear evidence? ??The latter drank a few sips of water and finally recovered a little. Although he was still a little hoarse, his words could be understood by ordinary people. ?According to the plan, all air activities tonight must make way for stealth bombers, so the bombing can only be carried out by GBU31 from the Spirit of Kansas. Under normal circumstances, six bombs are enough to blow up an ordinary building until nothing is left. Moreover, the prototype of GBU31 is the MK84 aerial bomb. Its charge coefficient is far higher than that of missiles or artillery shells. It rarely leaves complete wreckage after the explosion. As long as there is no direct evidence to prove it, it is not difficult to confuse right and wrong. For example, it can be said that the anti-aircraft missile missed the target and then fell down and hit it by chance. Although for an expert, even dozens of continuous rods or fragmentation warheads of anti-aircraft missiles cannot produce the effect of an aerial bomb when the fuel is exhausted. ?But thats not important. ?As long as you can find a superficially justifiable reason to silence the public and avoid boiling public dissatisfaction. This I dont know yet. The secretary shook his head: "The only information that can be confirmed so far is that the building was severely damaged. Except for part of the auxiliary building, it almost completely collapsed. The countries involved, such as Britain, France, Germany, and Italy, have not yet figured out the ins and outs of the matter. Only our military intelligence department based it on It is estimated from the time of the explosion that it should be the bomb on the B2..." In this case Sheldon breathed a sigh of relief. The situation seemed not as bad as he had just expected. ?But halfway through speaking, the phone on the table suddenly rang. Hello, this is the Joint Chiefs of Staff. Yes, I already know... Okay, lets go right away The call lasted less than a minute, and it looked like it was coming from the white house. "I''m going to hold an emergency meeting. You go and notify the press department. Temporarily prepare for the hearing by condemning the opponent''s inappropriate firing of anti-aircraft fire. However, no one can make any clear statement before receiving clear notification. Do you understand?" ?After Sheldon gradually regained his composure, the secretary seemed to have a backbone, no longer the lost look he had when he first came in: Understood, Ill get ready right away. After saying that, he turned around and left the office quickly. ?After confirming that the secretary''s back disappeared from the door, Sheldon bent down to pick up the unburned cigar from the ground, and put it back on the cigar stand with force of composure. ?He took a few minutes to calm down and got up to prepare for the meeting. ?However, the moment he stood up, the phone on the table rang again. Ill be right away ??He thought it was a call from the White House urging him to take action, but his secretary''s voice came from over there. General Sheldon, the news just came back from Europe. ?The other partys tone returned to the panic at the beginning: It was said that the other partys ground search and rescue personnel found three unexploded bombs under the rubble, confirming..." Sheldon gradually became unable to hear the following content. He only felt a dizziness..."Plop-" The whole person fell back on the office chair. ??The coat and phone receiver he just took fell to the ground. ?Although the lights in the office are bright, the eight silver stars on the shoulders seem to have lost their former brightness. General...general? ??The secretarys anxious voice kept coming from the receiver, but there was no response from the other side... Go back to the conference room with three doors. Fu Youquan read the intelligence documents in his hand as quickly as possible, raised his head again and looked at the people in front of him, his expression became serious: The reactions of various relevant countries to this matter have basically been clear. He paused. ?But no one answered. What deserves the response of "each" country is obviously not a "little thing" like the B2 being knocked down. ? And what is worthy of being written into intelligence documents is obviously not the public attitude of various countries. In fact, regarding this extremely complicated situation, everyones immediate external stance was basically based on nonsense literature. ??The country concerned made harsh remarks and stated that it would investigate the matter thoroughly, while the country not involved expressed regrets and hoped for world peace. But its certainly not that simple inside. Sure enough, Fu Quanyou continued: First of all, there are some unofficial sources that believe that the explosion may have been caused by anti-aircraft ammunition that had exhausted its fuel. After saying this, everyone present, including Chang Haonan, was immediately shocked I know you are a shameless bald eagle, but to be so shameless is really eye-opening. Ding Gaoheng sat up straight and was about to say that this was technically a fantasy when Fu Quanyou reached out to stop him. The latter continued: But someone took a set of clear photos of the three bombs that did not detonate. The marks on the missiles clearly showed that they were MK84s equipped with satellite guidance components, which are GBU31 bombs. Not long ago, this set of photos has been passed on by us through a special liaison mechanism to several European media that we have cooperative relations with, as well as the leaders of the countries involved. The expressions of everyone who were full of displeasure just now turned to surprise. In this case, wouldnt it be... Liu Yaoshun''s tone was a bit unbelievable. Thats right. Fu Quanyou nodded: The companies that have moved the fastest have already published their articles. Now, even if those European countries want to swallow this dumb loss, they cant. Therefore, nearly ten European countries have decided to suspend their participation in allied operations, and this news will be disclosed at a press conference this morning local time. At this point, he finally put down the first document in his hand. No one answered the call. The conference room was as quiet as Sheldon''s office was a few hours ago. But under the same appearance, there is a completely different atmosphere. The Chinese side was completely overjoyed. Before today, let alone other people, even Chang Haonan had never thought that such a good thing could happen. ?Although there are 13 participating countries in Operation Allied Forces, most of them are actually in name only. Only five or six of them are really useful. You must know that only one aircraft carrier was dispatched this time, and most of the aircraft were stationed at land airports in surrounding allied countries. ?For example, the Aviano Air Base mentioned by Fu Quanyou just now provides almost a quarter of the sorties. ?Now the core participants have withdrawn by more than half, and it is estimated that it will be a matter of time for the British - Even if they have a conjugated father-son relationship, the impact of this incident is so severe that it is completely unjustifiable not to react. ?This does not take into account the subsequent series of disputes such as claims and apologies. Overall, this Allied operation Im afraid it wont be able to sustain it. (End of this chapter) Chapter 701 Believe me, it’s a coincidence! Chapter 701 Believe me, what a coincidence! When everyone was silent. The door of the conference room was suddenly opened. There is only one situation for opening the door without notification. That is, a higher-level leader will come over. ?Chang Haonan stood up together with everyone and glanced at the door. Cant recognize And have a military rank. Obviously not a big leader. Mr. Zhang, you are here. ?However, Fu Youquan''s name for the other party made Chang Haonan immediately think of this person''s identity. ??Having achieved great fame in southern Xinjiang, he is considered a famous general in our army. He was still wearing a military uniform. He had obviously just finished a formal meeting and came over without even having time to change his clothes. Lets all sit down. Lao Zhang went straight to the head of the conference table and sat down, then took off his military cap and placed it neatly on the table in the front left. After everyone sat down, he saw a somewhat unfamiliar young face in the conference room. ?But then I realized that I had seen it in photos. Thisshould be Comrade Chang Haonan? Reporting to the chief, I am Chang Haonan! Chang Haonan stood up again. Although his stance is not very standard, he is not a soldier after all, so he can do whatever he wants. Lao Zhang raised his hand and pressed it down: Internal meetings dont need to be so formal... After Chang Haonan sat down again, Mr. Zhang spoke again: Everyone must have seen the news from the Second Intelligence Bureau just now, right? "yes." Fu Youquan nodded: Before you came, we were just talking about this matter. Any ideas? While asking questions, Mr. Zhang opened the notebook he carried with him. No one spoke immediately, but looked at each other for a few times. In fact, everyone was still in shock just now and did not have time to exchange their opinions. but. Silence sometimes represents an opinion. So, it was Fu Youquan who concluded: "The comrades'' view is that the Allied operation should end in an anticlimactic manner. After all, without the support of European countries and relying solely on the US military itself, it will be very difficult to continue to promote it. At least for now, there is only one Roosevelt Its impossible when the aircraft carrier battle group is nearby. Furthermore, this incident, together with the previous conflicts over the euro exchange rate, is very likely to trigger a general rebellious mentality against the United States in Europe, especially in continental European countries. The international situation we will face in the future may also be further affected by this. improve." Mr. Zhang listened and memorized at the same time, and he was able to keep up with Fu Youquan''s speaking speed: Other comrades, do you have anything to add or have any questions? There is nothing more to add. A naval leader saw no one responding, so he took the lead and said: Its just Mr. Zhang... The hotel was attacked this time, which always makes people feel a little weird..." "Logically speaking, the locations of these targets are completely public. JDAM bombs only need to enter the coordinates to carry out precise strikes. It doesn''t matter if only one or two have problems. Now that six of them hit together, it is impossible to lose them all. The coordinates are wrong, but...it cant be that the Americans are deliberately trying to undermine themselves, right? ?His question obviously represents the aspirations of many people - Although the people sitting here are all our own people, the level of confidentiality is sufficient. However, a sufficient level of confidentiality only means "can" know. There is so much new confidential information generated every day that it is impossible for leaders whose business scope is not related to be informed of everything. So its normal to feel confused. ?Including Liu Yaoshun, who was in charge of the Air Force, they only knew that the shooting down of the B2 was probably related to the radar and anti-aircraft gun firing table that had been sent over previously. But as to why a strategic bomber should be dispatched to bomb allies... It is also puzzling. "This question... there is a comrade here who is more qualified to answer than me." A rare smile appeared on Zhang Lao Gujing Bubo''s face, and then he put down the pen in his hand and looked up at Chang Haonan: Comrade Chang Haonan, can you explain your work to us? As soon as he finished speaking, about half of the eyes in the conference room turned to Chang Haonan. Even though the latter was used to seeing big scenes, it was indeed the first time for him to be stared at by almost twenty gold stars in total. ?Therefore, after he calmed down for a while, he opened his mouth to explain: "In the past few years, I and several other technicians have designed a set of electronic warfare equipment that can directionally interfere with the operation of satellite positioning systems. The original intention is to provide protection for important fixed targets such as cities, command institutions, and troop assembly areas, so that they can from cruise missiles or satellite-guided bombs. However, after the development was completed, we found that this equipment required a GPS military receiving module for translation, so it was impossible to mass-produce it. In the end, only two prototypes were completed and transferred to the technical reserve. "Later, considering that this equipment has no offensive properties and is a low-sensitivity self-defense equipment, at the suggestion of Director Ding of the Science and Industry Committee, the superiors approved the deployment of these two prototypes in high-risk areas to protect our country''s important local sites. facility." And in the process of Allied Operations, it was put into practical application for the first time... In this case, Chang Haonan was naturally concise and concise, skipping all specific technical details. ??And when he reached the end, the dozen or so eyes that focused on him had changed from puzzlement at the beginning to disbelief. ?Especially the naval leader who asked the question just now was confused at first, then confused, then shocked, and finally dumbfounded. "so" He hesitated for a moment when he said this, as if he was worried that he was being a little too exaggerated. ?So he secretly took a look at several colleagues around him and found that there seemed to be a few like him, so he calmly continued: So all this...we...planned it in advance? As soon as these words were spoken, the other twenty or so Venus immediately turned their attention to Chang Haonan. Ive been meaning to ask just now. Ding Gaoheng also said immediately: Xiao Chang, did you calculate this before? When we first made the plan, this part of the plan didnt seem to be included Chang Haonan quickly shook his head: Dear leaders, this is purely an accident... Then he turned his attention to the map projected on the curtain next to him: "Originally, if the preset algorithm one is used, the GPS-guided weapon will be directed to the open space on the river beach farther away. If the preset algorithm two is used, the GPS-guided weapon will be directed further to the river on the other side of the river. In the park. "But I just did some mental calculations. These GBU31s are not equipped with extended-range gliding kits. If the throwing height is not high enough, then... there should be no way to deviate from the preset coordinates that far away, so they hit the magic weapon in the middle. Above Kens Hotel ?This is definitely not how noble Chang Haonan''s morals are. In fact, if he had known that there was such a hotel full of Western media, there is a high probability that he would have specially modified the algorithm to lure the bomb here. ??However, the algorithm was designed almost a year ago. It would be amazing if it could be calculated in such detail... So I just found the nearest open space on the map to reduce collateral damage as much as possible. After all, even with the best expectations, I never expected to be able to stop the Allied operations. I just had the mentality of redeeming the regrets of my previous life... ?However, his explanation is obviously a bit weak in the face of other people''s imagination. The eyes of all the big guys all mean "we all understand". Comrade Haonan, dont feel any psychological burden. Mr. Zhangs temperament was originally calm and intimidating, but at this time he tried very hard to make a kind expression: "To put it bluntly, this matter is the fault of the country that launched the Allied Forces operation. Those media gathered at the Falkens Hotel not to report the facts objectively and impartially. What ultimately led to this disaster was the bomb dropped by B2, so , neither I personally nor the superior organization will think that you have any moral responsibility..." Hearing this, Chang Haonan was a little moved at first. ?But only halfway through being moved, I realized something was not right. ?This doesnt seem to be entirely comforting But he didn''t take his explanation just now seriously... "Chief, I understand what you mean, but I must have something to say to the organization. This time it was really unexpected..." Mr. Zhang did not continue to persuade, but just nodded: "Today''s meeting will not keep the original records. All of the people here are experienced comrades and will not talk nonsense outside. So Xiao Chang, you can rest assured that this matter will be recorded as an accident. I will personally sign and seal the relevant files. At least 50 years! Obviously, although he agreed with Chang Haonan''s statement, he still didn''t believe it in his heart. "I" ?Chang Haonan finally decided to give up the struggle for the time being... (End of this chapter) Chapter 702 Ninth Security Bureau Chapter 702: Ninth Security Bureau ?Seeing that Chang Haonan no longer struggled, the topic of GPS jamming equipment came to an end. After all, there is still an issue that everyone is most concerned about that has not had time to discuss Fu Youquan had received several documents before. Before Mr. Zhang came in, he had actually only read the first one about the reactions of EU countries. But...could the core of this matter be in Europe? ?Thats definitely not the case! So, someone soon asked: "Mr. Zhang, since the truth of the whole matter can no longer be concealed, then... I wonder how the Americans will react?" "Is it an open channel? I haven''t made a statement yet. I just said that the White House still doesn''t know the ins and outs. It is properly investigating everything that happened last night and promised to give an explanation to European allies and the people." ?This statement is definitely nonsense. After all, everyone sitting here already knows that the Americans must want to retaliate because China supports the euro, but the bomb was deflected by the mysterious power of the East. ?However, it is understandable that in order to delay time, this is the only last resort. ?The main thing is that there is no way to explain it. ?Just think about it : "Big boys, I was not careful this time." Ou: "Ah, yes, yes, you were careless, you were careless on purpose, right?" Me: "Believe me, it was really unexpected. We were originally planning to attack other targets, but for some reason, the bomb deviated from the planned coordinates..." Ou: "If that''s the case, tell me, where were you planning to blow up?" I You are joking, let alone admit it, okay? Its a complete dead end. ?So, even if Americans are experts at making excuses, they may not be able to think of a reasonable reason at the moment. "I guess they will have to throw out a scapegoat in the end, otherwise they won''t be able to pluck them all out..." Liu Yaoshun, who was sitting aside, speculated: According to the command structure on the opposite side, the Secretary of Defense and the Secretary of the Air Force definitely do not have direct command authority. From this point of view, the most suitable person to take the blame should be the leader of the Joint Chiefs of Staff, or the Chief of Air Force Operations..." Speaking of the leadership of the Joint Chiefs of Staff. The muscles on Mr. Zhangs face were obviously twitching, as if he wanted to smile but was too embarrassed to do so: Actually, according to the original plan, I should be on the phone with General Henry Shelton of the Joint Chiefs of Staff. But after the call was connected, I learned that Sheldon had suffered a heart attack a few hours ago and was hospitalized..." ?Chang Haonan swore that he heard more than one person laughing at that moment. Speak of it, Comrade Gao Heng. After a relatively relaxed conversation and laughter, Fu Youquan turned to look at Ding Gaoheng, who was a few seats away from him: The value of Comrade Chang Haonan is obviously far greater than that of the general person in charge of a second-level state-owned enterprise. I think no one has an opinion on this, so regarding his safety..." ?Although Mr. Zhang just said that relevant files will be sealed for more than half a century, this measure can only protect the details of the incident. ?As the leader of the General Staff, Fu Youquan participated in almost the entire decision-making process of putting jamming equipment and new passive detection radar into use in the Balkans. He knew very well that there were too many links involved in the whole matter. Even if some cover-ups were made in the middle, such as deliberately directing the spearhead towards the Russians, this method could deceive the Americans for a while but not forever. Looking back, I can definitely see that something was wrong. Of course, there is another layer of insurance here, that is, there are no more than one person who knows that Chang Haonan is not only the developer of the technology, but also the proposer of the plan. Including when he just introduced the situation, he also took full credit for proposing the plan. It was settled on Ding Gaoheng. So there is still a distance between "realizing that the matter is related to China" and "realizing that the matter is related to Chang Haonan". But considering that the other side has no precedent of attacking technical personnel, it is always right to be careful. Ding Gaoheng also returned to his usual serious expression: "Some time ago, I asked Xiao Chang to move his residence to the residential area for senior cadres of ministries and commissions, not far from my home. In terms of travel, because the Challenger 601 of the 34th Division is too small, it has basically always been Xiao Chang''s residence. If only one person is using it, there will be no problem in both aspects. He only travels short distances every day and only has one guard with him. I can add a few more people after I return..." Mr. Zhang, who was sitting at the head of the table, was experienced in this field and immediately waved his hand: Gao Heng, your thinking is not quite right. "Unless there is a complete security force, the core function of the security guard is to avoid accidents, such as encountering criminal cases while walking on the road. If you really encounter an organized assassination, the difference between one and two or three Its not big at all, so increasing manpower is only one aspect. The key is to prevent the protected persons movement trajectory from being located. Ding Gaoheng has a technical background and has never done any research in this area. The previous security guards assigned to Chang Haonan also copied the treatment he and other colleagues had received in the past. However, the place where two bombs and one satellite are built is completely closed to the outside world, which is completely different from the situation in Beijing. Then Mr. Zhang, what do you mean Assigning a few more cars, especially a few more sets of license plates, is much more useful than sending two more people. Lao Zhang immediately replied: Also, the daily itinerary, especially the route, should not be set in stone. After the meeting, you can ask Youquan to find the responsible comrades of the Ninth Public Security Bureau to do these things. Hearing this arrangement, Chang Haonan himself was shocked. ??Although the Ninth Public Security Bureau has the name of public security, this is completely a legacy of history. In fact, it has nothing to do with the public security. It is an agency directly under the General Staff and is only responsible for the security work of the core areas and institutional leaders of the capital. Belongs to the innermost level of Ouchi guards. Thats fine, then Ill ask the special service to prepare for the handover after I get back. Ding Gaoheng naturally had no objection to this. After he took office as the director of the Science and Technology Commission, the Ninth Bureau was responsible for his own security. The reason why Chang Haonan was assigned special service was simply because he had no right to apply for the former''s transfer. Now that Mr. Zhang has endorsed it, there are no longer any authority issues. "Can." Lao Zhang acted vigorously and resolutely. He immediately nodded in agreement, and then turned to Fu Youquan who was nearest to the left: In addition, if Comrade Haonans current security guards work situation and background meet the requirements, and he himself is satisfied, he can ask the Secret Service to hand over the personnel and work together, and it will save the need to send new people to run in. After all, he is the second-in-command in the army. It only takes one sentence to transfer a captain-level officer from active duty in the public security to the army. "yes!" Fu Youquans answer was equally straightforward and decisive. Okay, this matter is over, lets get back to what we just said. After finishing this little digression, Mr. Zhang took the pen in the middle of the notebook into his hand again: "You just discussed that the Allied Forces Operation is unsustainable and will end in a tailspin. After my report this morning, the superior leaders also made a similar judgment. At present, the core of our external relations is also We must strive to bring the outcome of the incident in this direction. "However, no matter how hard the fight continues, the United States is still the only superpower today. Even if it has a snake''s tail, it is a sky-swallowing python for the Balkans. If this tail is strong, it will still be unbearable. Therefore, we We cant just relax our vigilance, we still need to think about how to end it. It was Chang Haonan''s first time to participate in a meeting of this level. He thought that his role should have been played out, so he just continued to have fun. He also roughly understood what Mr. Zhang meant, that is, although Americans must have lost their reputation now, as the leader of the current version, even if they suffer a loss, they still have to live up to their reputation, so someone needs to give them a step up. The key is how to advance this step so as to maximize our interests. (End of this chapter) Chapter 703 Comrade, you saved everything last night Chapter 703 Comrade, you saved everything last night ?At the same time, the Balkan Peninsula, which has been engulfed in war for the past half month, has also entered the early morning hours. For the mid-to-high latitudes of the Northern Hemisphere, the effective sunshine duration reaches 15 hours in mid-to-late April. So during this time, even though the sun cannot be seen rising yet. ?But the sky is already dark. ?In the soft morning fog, a Wazi 469 off-road vehicle with a civilian license plate flashed dim fog lights and sped past on the empty street. In the co-pilot position, Captain Nikolai Barsak was holding a city map in his hand, and was not very skillfully directing a sergeant major next to him who was about to rub sparks out of the steering wheel: The one in front of you is wrong. Go to the right at the next intersection, and then go to the left immediately The old Jeep, which is nearly 20 years old, is swaying and looking like it might fall apart at any time. That is to say, it is still during the "night" control period, and the surrounding power plants and substation facilities have long been destroyed by bombs, so there are neither traffic lights nor traffic police on the street. Otherwise, you will probably be stopped if you go on such a rampage. In the past few hours, the sky above the entire city seemed to have exploded. At the beginning, the air defense forces, including Barsac himself, used ambush tactics and suddenly fired a half-minute burst into the air. As Lieutenant Colonel Danny''s confidant and white glove, the captain naturally fully understands the operating logic of this set of things, but understanding is understanding. Logically speaking, it is almost a millennium and we are still using large-caliber anti-aircraft guns for air defense. No matter how abstract you look at it, Even when he was directing his four cannons to fire, he felt that it was a bit too childish. As a result, they had just covered the camouflage net, and before they had time to evacuate the fighting position, they saw a huge fireball igniting in the mid-air in the distance, and then slowly falling. The anti-aircraft gun position and the command post where Danny was located were not at the same angle. In addition, the position was surrounded by ruins and the view was not very good, so he was not able to see clearly what he had shot down at the time. But since he used what he brought back, it must be another stealth aircraft. ??Barsak had originally written down the location of the crashed plane, and planned to go there and have a look after evacuating the position. As a result, that round of artillery fire was like poking a hornet''s nest. He had just led his men to find the underground bunker for concealment. He didn''t even have time to take a sip of the hot water when he heard the explosions one after another around him. The radio and walkie-talkies were also gone. reaction, apparently experiencing strong electromagnetic interference. The captain was very courageous, otherwise he would not have taken on such a task with Wu Yifan before. However, being brave does not mean being reckless. Under the circumstances, he followed the lieutenant colonel''s request and hid in an underground bunker to rest. It wasnt until I woke up after sleeping for a few hours that the explosions and disturbances gradually disappeared, and the surroundings gradually returned to tranquility. But it was almost dawn at this time, and the Lieutenant Colonels previous order was for them not to go out during the day as much as possible. ?So Barsak struggled for a while. ?However, in the end, bold nature prevailed. On the one hand, I really wanted to know what I had shot down. After all, judging from the size of the fireball I saw at that time and the gorgeous show effects, it didnt feel like a mortal thing. On the other hand, I also find it a bit strange. Because after the previous wave of crazy and intensive bombing ended, nothing happened in the past few hours. There was no sound of anti-aircraft fire, no roar of aircraft engines, and no sound of bombs exploding. Since the Allied operation began three weeks ago, there has not been such a long period of silence. So, he entrusted the command of the troops to his deputy company commander, then took three of his subordinates, found an inconspicuous jeep with a civilian license plate, and prepared to take a look at the location he had noted down at night. Captain, we are the only car on this road, so we wont be targeted by planes... ??A senior soldier sitting in the back seat looked over and asked. He held an AKMS with the **** folded tightly in his hand, and pointed the muzzle out of the car window at all times, showing a vigilant look. However, in the face of an enemy who did not dispatch ground troops at all, this behavior would not only bring harm to himself. It obviously has no practical effect other than boosting courage. ??Barsac originally planned to comfort this subordinate, but after thinking about it, he decided to tell the truth: "I don''t know, but something is very wrong this morning. Logically speaking, at this time of day, bombs should have fallen." Could it be that there were too many planes dispatched last night and they dont have enough ammunition today, or the planes are being refurbished? ??A second lieutenant on the other side of the back seat also held the same rifle in his hand, but it was not loaded. He obviously knew that in the current situation, this thing was similar to a fire stick. ?Barsak shook his head decisively: If the opponent had to rest for such a long time before concentrating their operations, then we wouldnt have fought so hard..." ??The driver, who was looking at the road ahead attentively, also nodded in agreement: Thats right, we havent even reached the bottom of our ammunition, let alone the opposite side. Its impossible for NATO to be so big that it cant even afford some ammunition and oil, right? As a captain officer, Barsak actually knows that there are not many anti-aircraft missiles left in his company, but this matter is a military secret and must not be talked about randomly. Moreover, the number of missiles is tight. In addition to randomly firing too many in the early stage, they have also been intercepted continuously. There are several ammunition depots, so what the sergeant major said is logically correct. "Anyway, there is no danger in fighting, but if I don''t go and see the results of last night, I would really feel uncomfortable...and no matter what the reason is, the other party has not been here for a few hours, so the risk should not be too great. big" ??Barsac didnt know whether he was persuading his subordinates or himself. Fortunately, the second lieutenant behind him changed the subject: Look, Captain, thats the position we were at last night. It seems to have been bombed... After hearing this, Barsak subconsciously looked outside and found that the pile of ruins that were originally used as a cover had now become more and more broken, and there were still green smoke rising in the middle. It had obviously been burned for a long time. , it just went out. He didnt know how the other party got here, but it looked like revenge. It doesnt matter, its just a few anti-aircraft guns. If we exchanged it for the plane last night, we would have made a profit no matter what. Of course the captain knew that they did not exchange a few anti-aircraft guns for one plane, but lost most of the city to exchange for a few planes. ?However, thats all I can do to comfort myself at the moment. Wait, why do there seem to be so many people and cars over there? ??The sharp-eyed private had been staring out the window, and suddenly found that the place a few streets away seemed to be full of people, and it didn''t look like there was a war at all. Maybe some building was blown down... At this moment, Barsak also remembered that before the unidentified plane was shot down last night, there seemed to be a violent explosion nearby, but when he thought about it, he felt that something was wrong. ??The reason why they originally chose this place as an anti-aircraft artillery position was because the nearby blocks are home to international organizations, foreign institutions and media, and the opponent''s air force rarely comes here specifically. But why is there an explosion over there now... Ignore this, go to the place where the plane crashed and take a look first. ?Ten minutes later, the jeep parked next to the wreckage that had been surrounded by police cordon. ??Not only was there a cordon, there were even about a platoon of sentries standing guard with guns. ??If it weren''t for the large black pile of plane wreckage in the distance, Balsac would have thought he was back before the Allied operation began. Comrade Captain, please show me your ID! ??The lieutenant in military police uniform stretched out his hand to stop the four people who had just got out of the car. ??Barsac took out the ID from the inner pocket of his coat and handed it to the other party. At the same time, he asked a little confused: Its already dawn, and youre standing guard here without any cover. Arent you afraid of being attacked by airstrikes? "you do not know?" The lieutenant looked up. What should I know? ??Barsac and his company hid in a temporary underground bunker for several hours. He didn''t even have a radio in his hand, and he had no idea what was going on outside. Air strikes have been suspended because There were too many things that happened last night, and not all of them can be talked about casually, so he got stuck in the middle of his words: In short, it should be relatively safe now, and this pile of wreckage is much more important than the safety of a few of us. After speaking, he lowered his head and opened Barsak''s ID for inspection. But I was stunned after just one look. A few seconds later, the lieutenant looked up again, his eyes full of shock. He raised the document and placed it next to Barsac''s face, apparently comparing the photo with the person. Whats going on? I am Nikolai Barsak, commander of the 1st Company of the 3rd Battalion of the 250th Air Defense Brigade. The photo was taken by me two years ago. I was still very thin at that time..." ??The military police lieutenant''s breathing became obviously heavier, and he seemed to be a little excited. Comrade Captain! He raised his hand and saluted Barsac: You saved everything last night! ?Barsak was a little flattered. After shooting down the F117 previously, the 3rd Battalion did become somewhat famous within the army, but it didn''t seem to be to this extent. But before he could react, the lieutenant returned the certificate to him, and then lowered his voice and shouted to the other two colleagues next to him: Look, its their troops who shot down this B2 last night! We did last night ??Barsac took the military ID card and was about to put it back in his pocket, but he got stuck halfway through the movement: Wait a minute...what did we shoot down? ? He ??then looked past the captain''s body and looked at the pile of wreckage surrounded by police cordons in the distance. ?Although it is completely broken into pieces, after what the other party just said... like It really looks like a flying wing bomber... Oh my God ??Barsak''s first reaction was to pinch his thigh hard to make sure he was not dreaming. "Can we... go in and have a look?" He asked tentatively. Of course, a lot of people have already come to see it. The lieutenant made way without thinking: Rather, I didnt expect that you would come so late to confirm the results of the battle... Barsac, who had just crossed the cordon, was embarrassed to say that he had fallen asleep, so he had to change the subject: Also...can you take some parts of the wreckage as a souvenir? He also knew that his request was a bit too much, but once the idea came to his mind, he couldn''t get rid of it. The lieutenant behind him hesitated: Of course not possible in principle Barsak''s heart moved when he heard these words. Some things are the same all over the world. For example In principle, if its not possible, then its possible. Sure enough, the other party looked around warily: Comrade Captain, we are standing guard and havent seen anything. Please be more discreet... ??Barsac understood instantly and hurriedly ran to the wreckage and circled it twice, and then together with three other people, moved away the two remaining, relatively complete fragments... (End of this chapter) Chapter 704 windfall Chapter 704 Unexpected Harvest ??Barsac originally wanted to leave a shadow next to the wreckage. ?However, he didnt even have a radio in his hand, and naturally he couldnt have a high-end gadget like a camera, so he had to give up in the end. He just loaded the two B2 fragments into the trunk of the jeep as quickly as possible, then stuffed half a pack of cigarettes into the military police lieutenant as a thank you, and then asked the driver to drive away from this place of right and wrong. When I went back, there were gradually more cars and people on the road. ?Of course, it wont be a busy place, but at least its a bit popular. ?However, the four people in the car were still a little confused. I said, company commander. The sergeant major was still driving, but compared to the fierce rubbing of the steering wheel when he came here, his driving movements were obviously much more graceful now. At this time, he was holding the steering wheel with one hand and resting his other hand on the driver''s side. On the side window glass, second gear is hung and the accelerator is stepped on: Is this other party really going to stop fighting just because we shot down a stealth bomber? Barsak, who was in the co-pilot, was also confused at this time: "I don''t think it''s that simple. Didn''t the lieutenant just say a temporary ceasefire, so I guess... it''s hard to say what will happen next, so I have to be more careful when I go back, and take turns to go out to get some living supplies during these two days, just in case something happens later. If you fight, your life will be better. Actually, its not just them. Since water, electricity, communications and other infrastructure are in short supply, and European and American space assets such as communication satellites are obviously not open to enemy countries, so at this time, although the whole world is about to explode, the Balkans are the land in question. Most ordinary people still have no way of knowing the whole story. It can be regarded as a kind of sadness in a war-torn place... Anyway, we caught a big one this time. Its a pity that we couldnt take a photo just now. I told my mother that she might not believe it... ??The private in the back seat turned back and glanced at the two pieces placed behind him. The safety of the AKMS in his hand has been turned off, and he has changed from holding the gun with both hands to holding it in his arms. Company commander, what are you going to do with the last two pieces? ??The second lieutenant next to him, who was also holding a gun, moved his eyes quickly, obviously having some ideas. As an officer, he knew more about the enemy''s equipment and knew that the plane that was shot down last night was a treasure of only about twenty aircraft in total. The smaller piece was broken into pieces after we returned and was distributed among the comrades in the company as a souvenir. The larger piece was kept for me. I have other arrangements. ??Barsak''s mind flashed to the face of the suspected Buryat man who handed him the radar components and anti-aircraft gun operating manual. In fact, he still doesnt know where the businessman named Zamusu comes from, but thats not important. Being able to bring down this plane, the opponent and the forces behind the opponent made not only 100%, but at least 70% contribution. ??If you can survive until the war, it is very reasonable to reciprocate and give you some souvenirs. ?For this reason, when Balsac was picking out the pieces, he specifically found a part with the words "AF8901" on it, which looked like a skin somewhere. Although it is not the largest in area, it is the one with the clearest and complete preservation of text. It is obviously very appropriate to use it as a commemoration. I think this is enough for me to keep as a family heirloom ??The sergeant major in the driver''s seat also joked half-jokingly. However, at this moment everyone has relaxed. O Several gunshots suddenly came from a building next to the road. The four people in the car instantly became nervous. The second lieutenant behind them pulled the gun with a clatter, and Barsak and the sergeant major each picked up an M84 submachine gun that could be operated with one hand from behind the door panel, which was their local copy. Vz61. Dont stop, speed up! ??Barsak''s first thought was to send special forces from the opposite side to **** away the wreckage. As air defense troops, they dont even practice shooting very much, so when encountering special operations, they naturally take the lead. But this idea only appeared for a moment and was denied by himself Such a big thing, obviously it is impossible to send a few special forces to completely move it away. ??And according to the lieutenant standing guard over there, foreign media should have already taken photos in the past, so it probably doesn''t make much sense to **** them back now. ?Thinking of this, he quickly pressed the drivers shoulder again: Wait a minute, slow down, slow down and check the situation! ??The 20-year-old manual transmission car could not withstand such changes every day, so it naturally turned off in the middle of the road. The sergeant major knew that it was okay to slow down at this time, but stopping would still be too fatal, so he quickly started the fire again. But at this moment, a figure holding a pistol rushed out of the building where the gunshots were fired. It seemed that he was preparing to go to the parking lot next to him to find transportation. ??Barsak initially thought that someone was robbing him. After all, in this city, even basic living necessities are relatively scarce, and some security incidents are inevitable. ??But after taking a closer look, I found that although the man was wearing a brown windbreaker on his upper body, the pants below his knees were military green. And he was wearing a pair of military boots. Combining everything you just learned... Stop! ??The sergeant who had just released the clutch and half-pressed the accelerator was startled by the voice, and quickly stepped on the brake. Before the car stopped, Barsac unfolded the **** of his gun, quickly opened the door and got out of the car, and at the same time shouted towards the back seat: That man might be a parachuting pilot! You two come with me! "Malkovich, you drive the car over and block the door, you can''t let him drive away!" Hearing the captain''s order, the other three people''s eyes immediately gleamed. ?The reason why the Allied operations were extremely frustrating for them was mainly due to the fact that the other side did not send ground troops at all and was unable to use them effectively. ??When the F117 was shot down last time, the pilot drifted to the countryside again and was finally rescued by the opponent''s helicopter. ??Given such a good opportunity this time, it is naturally impossible to let him go again. Furthermore, although they seldom practice gunnery as an air defense force, the opponent''s pilots only practice even less. Soon enough, under the control of the sergeant major, the green Wazir Jeep rushed towards the exit of the parking lot not far away, while the other three people formed a formation in a less than standard pattern. He quickly approached the suspicious target from his position. ?At this time, the other party also noticed the unkind arrival of three people and a car. He immediately quickened his pace, raised his gun, and turned around to shoot. However, if you want to hit something like a pistol while moving at a distance of more than 20 meters, it is simply more difficult than using an anti-aircraft gun to shoot down a stealth bomber. ??The second lieutenant who was walking at the front immediately fired a long burst, suppressing the opponent behind a flower bed. Then There is no more. It is impossible for one short gun to kill three long guns. ??When Sergeant Major Markovich ran over panting, the pilot had already been pinned to the ground by three people. Let you blow us up let you blow us up The young soldier''s eyes were red, and while he was muttering, he gave the opponent two gun butts. Obviously he wanted to vent his anger after being bombed for more than half a month. But he was quickly pulled away by the second lieutenant next to him. The man lying on the ground has a slightly gray beard, and is obviously quite old. ??Probably a high-ranking military officer of great value. It would be a pure joke if you were accidentally killed. ??Barsac cut the opponent''s arm back, held it firmly with his knees, and put the muzzle of the gun against the back of the head: Your name, position, and unit! ?Since he can be sent out alone to run business, he must be able to speak a few words in basic English. The other party did not struggle much and answered very simply: "Born Marot, Brigadier General, Commander of the 8th Air Force, I request to be treated as a prisoner of war." ??Although I felt that this old guy was a big fish just now, when he actually reported his basic information, even Barsac, who was holding a gun, shook his hands slightly. ?This is more than just a big fish, its simply a blue whale... (End of this chapter) Chapter 705 valuable captive Chapter 705: Valuable Captives Next to the empty flower bed is obviously not a good place to ask detailed questions, and as time goes by and the news of "the air raids are temporarily suspended" spreads by word of mouth, there are more and more pedestrians on the street, and there is no guarantee that there will not be some people fishing in troubled waters among them. . Therefore, in order to avoid a long sleepless night, the captain quickly took off his coat, covered Brigadier General Marlott''s head, and handed the other three people to **** him into the car. He stayed at the scene and inspected it in detail to confirm that there were no missing items nearby. Follow a few others. . Strictly speaking, the identity claimed by this person still needs to be more strictly verified by the intelligence department, but for the Barsak people who got lucky today, after seeing the ID tag, pilot uniform and pistol There''s nothing wrong with opening the champagne in advance. There should be two pilots on that plane. Besides you, who is the other one? ??The captain opened the car door, sat in the passenger seat, quickly changed a new magazine, and at the same time turned around and asked sharply. Marlot was sandwiched in the middle of the back seat, with a cut on his head (hit by the **** of a gun), his eyes still covered with clothes, and he was still a little dazed at this time. ??In addition, Balsac''s English is a bit blunt, so he didn''t react at all for a while. The captain who didn''t get an answer had no choice but to pull off the clothes covering the other person''s head and slow down his speaking speed and asked the question a second time. ?The covering of clothes was just to prevent being seen by too many irrelevant passers-by during the escort. Now that we were in the car, it was naturally not necessary. ?This time, Marlott finally understood and immediately shook his head: "I don''t know. After the plane was hit, because the anti-aircraft fire had not stopped, we didn''t dare to parachute immediately. When the ejection came out, the plane had already started to become unstable and roll. He came out 2.5 seconds before me and floated. In a completely different direction. "I took a special look at that time. He should have landed in the direction of the eastern suburbs, but he should have been taken away by the combat rescue team." After answering, he turned back slightly and looked at the two fragments placed in the trunk with a strange expression. Although the superior soldier next to him had regained his composure just after being pinned down, his expression was still quite unkind. He seemed to want to make some sarcastic remarks with a gun and a stick, but he couldn''t speak English, so in the end he had to continue to look out the window to be vigilant. "What about you? You are a brigadier general. Logically speaking, you should be rescued with higher priority, right?" ?Barsac looked Marlott up and down with suspicion. ??Of course there are professionals responsible for interrogating prisoners, but since they have captured the person, they always have to take advantage of the other person''s mental state to ask a few questions first. As a result, this somewhat layman''s question was met with a blank look from the brigadier general: "I was blown to the top of a building by the wind. Although a positioning signal was sent, the combat rescue team probably believed that the risk of the helicopter rushing into the city to land was too high and there was no way to operate it, so there was no news, so I Im thinking of finding a way to go to the suburbs first. After that, I hid the parachute and moved to the countryside. I dont know why. I kept following the direction pointed by the GPS positioning system, but I seemed to have lost my way. I walked for several hours and didnt go out..." "Anyway...it was getting daybreak later, and I saw that I was still wearing a flight suit, so I thought I should steal some clothes to cover myself up. It would be better to get a car so that I can go faster, and then I meet you." The captain didnt care about a prisoners attitude toward him, but something the other party just mentioned made him a little worried: So you still have your GPS transmitter with you? "certainly." The Brigadier shrugged: However, it requires active operation to send out a signal. Otherwise, it only has normal positioning function and you dont have to worry about being tracked. ?Malott hid in hiding all night, so it was naturally impossible for him to know everything that happened outside the Balkans. So I thought the other party was worried about being located and killed: "And as you can see, my level is not low. Even if I am being followed now, I will definitely be safe, at least safer than other places." In fact, Marlott was not sure whether the command would try to exchange or prepare to silence him if he was really sure that he was captured. After all, six bombs had already been dropped when it was shot down last night. ??In case of any uncontrollable consequences, it seems that letting him, the chief culprit, be "killed" would be an acceptable outcome for all his superiors. At that time, it can be explained that the commander of the air force is alone, and the top management knows nothing... ?But no matter what, I still have to bluff for now. As long as the news of his capture is made public later, the risk of being silenced will be much smaller. Now he is safest in the hands of his enemies. However, Barsak shook his head nonchalantly, with a hint of pride in his eyes: Mr. Brigadier... Perhaps you dont know, but our air raids have stopped this morning. The captain himself is actually not sure whether the "pause" he just heard is reliable, and even if it is reliable, whether it will continue to be paused forever. But at least at this moment, in front of the captured Brigadier General Marlott, he finally had a real feeling of "victory" Although he was very excited when he saw the wreckage of the plane just now, when he thought about the destruction and death he had seen in the past half month, it was difficult for him to regard a cold plane as a sign of victory. "Um?" ?Malott looked in disbelief. He has a relatively accurate understanding of his own value, and does not think that the higher authorities will stop the Allied operations just because he may be captured. ??Moreover, in the two hours just after he was shot down, he clearly heard explosions that were much stronger than usual. ?However, just when he was about to deny it, he realized that in the past few hours, the city had indeed been surprisingly peaceful... The brigadier general was a little shaken. ?Seeing Marlott''s eyes flicker and no longer speak, Balsac felt an unprecedented clarity. Classroom, blackboard, waving arms, cool.gif After calming down a little, the captain asked the next question: Where was the target of your air strike last night? Why did you send a stealth strategic bomber out alone? For Barsac, who had no interrogation experience, he believed that the information he had just obtained was more important. The really fatal question at the moment was just a whim because he wanted to satisfy his curiosity. But to Marlott, the previous ones are completely indifferent, and now this is the proposition. ?? Definitely cant be recruited. So he shook his head firmly: This is a military secret, I cant tell you. ?At this time, the brigadier general still didnt know how big a trap he had dug. The other four people dont know either. ?As a result, the car quickly fell into a cold atmosphere. Fortunately, the headquarters of their air defense brigade was not too far away. The jeep drove all the way and arrived at the door of a semi-underground bunker in ten minutes. Marlot has been blindfolded again. Barsac and the other four dragged the former into the headquarters under the strange eyes of the guards at the door. After the captain reported what had just happened to the brigade commander Andre Horvath (of course he concealed the fact that he had taken away two B2 fragments), the entire brigade headquarters focused its attention on these five people, or, To be precise, it was Brigadier General Marlott who was in the middle of the other four people. Horvat hesitated for a moment, then stepped forward and personally took off the clothes on the opponent''s head. He also called the communications soldier and ordered the news of catching a big fish to be reported to a higher-level command. Finally, he ordered the military doctor to deal with it. A wound that has begun to scab over. He could naturally tell that the wound came from the foldable gun stock of the AKMS, but after being bombarded for such a long time, it didn''t hurt for his men to vent their grievances. As long as people are still alive. Dont worry, Brigadier General, we will treat you as a prisoner of war. ??The brigade commander brought a chair and sat across from Marlott: After all, the bomb you dropped last night may have ended the war early... (End of this chapter) Chapter 706 Isn’t there already a staircase like this? Chapter 706 Isnt there already this step... ?This sentence is indeed a bit too much information for Brigadier General Marlott, who is frightened, hungry and cold after a long night, and his mind is still stuck on the time when the plane took off about 24 hours ago. ??He subconsciously reached out to smooth his hair, but accidentally touched the wound that had just been treated. His whole body twitched in pain, but he didn''t want to fail in this situation, so he gritted his teeth and endured it. ??However, although on the surface he looked like an old monk in trance, the brigadier general''s mind was moving very fast. ?The first thought that came to his mind just now was ??Didn''t a world war start last night? After all, Marlott knew very well what he had done last night (of course he thought he knew it very well). ??And its hard not to think of the Balkans as a hellish place. As for what Horvath just said, it is easy to explain. ?Since the world is at nuclear peace, there will naturally be no need for war anymore. ?However, this idea was rejected after just a flash. Ordinary people may have unrealistic misestimations of the power of nuclear weapons under various deliberate misguidances, but as a strategic bomber pilot who has been dealing with nuclear bombs for half his life and the former captain of the 509th Wing, Malott, Still relatively sober in this regard. Even if all the approximately 150,000 nuclear bombs around the world at the peak of the Cold War were thrown out, it would still be impossible to completely level the world with nuclear weapons, to the point where it would be impossible to even fight a war. Whats more, the number of nuclear weapons on duty today has dropped sharply, to about one-tenth of this number. So what the other party just said about "ending the war early" should be taken literally. But how is this possible? Besides nuclear weapons, what else can stop NATO today? ?The brigadier general also considered whether the other party might be deliberately deceiving. But when he was just arrested, the other four people seemed to have said similar things in the car. ??It was a pure accident that he was caught, and it was impossible for the two other groups to collude in advance. ??And more importantly, there seems to be no point in cheating in this kind of thing... Barsak next to him looked at the prisoners whose expressions were changing back and forth like a revolving door. He felt so happy that he wanted to jump up. But firstly, he still had to maintain his image in front of the leader. Secondly, this semi-underground command post was really small. Captain He was already tall, and his scalp almost touched the ceiling without even jumping up. There is really no room for improvement. Then there is ?Him himself is actually no better than Marlott, and his head is full of question marks at this time. At this time, the brigade commander also raised his head and looked at Barsak, who was in good spirits, but his face and body were covered in dirt because he hadnt had a good rest or tidy up since last night: Comrade Captain, you have made great achievements today. I will report it to my superiors and apply for a commendation for you! The latter quickly stood at attention and saluted: Yes, thank you brigade commander! ?Horvath nodded calmly: "Okay, let the chief of staff take you to the back, have a meal and have a good rest" ?Led by a lieutenant colonel next to them, the four of them went around in circles and along the narrow bunker passage to the living area at the back. The 250th Air Defense Brigade was basically the only unit in the entire Allied operation that fought the entire battle with the opponent. Therefore, the personnel losses were still a little bit. At least the chief of staff had been replaced, and it was inconvenient to advance during the war. title, so the original epaulettes are still hanging. Otherwise, under normal circumstances, the chief of staff of the air defense brigade should be a colonel. In special times, conditions are limited and the number of dormitories is not enough, so they are all shared. The lieutenant colonel opened the door of a room and signaled that the four of them could go in and rest: There is running water in the bathroom, but there is no way to heat it. If you want to take a bath, you can only use cold water. In addition, try to only turn on one light, the power of the generator is a bit insufficient..." ?The other party emphasized several precautions in succession. Obviously, although the brigade headquarters was in much better condition than the temporary underground bunker used by their company to hide, it could not survive alone because the entire city''s infrastructure was severely damaged. That... Comrade Chief of Staff? ??Seeing the lieutenant colonel turn around and prepare to leave, Barsac finally got a chance to talk and quickly stopped him: We first conducted anti-aircraft operations that night, and then spent several hours huddled in a bunker without water or electricity. Now we have no idea whats going on outside. I wonder if I can tell you a little bit about what the brigade commander just said...the war may end early...what does it mean? ?This matter has spread all over the world, not to mention it is good news that can greatly boost morale, so there is no reason to keep it secret from our own people: The lieutenant colonel turned around and sat down on the bedside table next to him: Of course, you can just call me Pakovich. ??Pakovich knew that the three people in front of him, especially the captain at the head, were expected to be promoted by rocket soon. There was no conflict of interest between the two parties, so it was best to establish a good relationship in advance. After all, even if this battle is really over now, the future will be troubled. It never hurts to have more friends. After everyone sat down respectively, Pakovich told a series of things that happened last night, of course, a series of things that he could know, exactly. ???? After hearing this, the four Barsaks looked at each other. "this" Is there such a thing? To be honest, for them, besides being shocked, this news is... Very satisfying. After all, the entire Balkan crisis was caused by EU countries in the first place. ?Now that the culprit is being **** by the foreign aid he invited, the victim is naturally very happy. However, its good to feel good. ?There are some things that they really dont understand... So, the American brigadier general just flew over in a bomber and blew up one of their own people? The upper class soldier who had given Brigadier General Marlott two rifle butts to vent his anger when he was arresting people suddenly felt a little guilty: Oh my god, it looks like I might have been a little impulsive just now "Is he a pacifist? He can''t stand what Europeans are doing..." I dont think so. If he is really a pacifist, he should at least bomb his own air force base instead of a hotel...Although there are many European media there, there are also many staff and ordinary people..." ??The speculations became increasingly outrageous, but Pakovich himself was not sure why, so he had to interrupt the imagination of several others: "In short, several European countries have now refused to continue Allied operations. Although the Americans themselves are still insisting on not expressing their position, I estimate that if the brigadier general we captured is used to make a fuss, there is at least hope of reaching a conclusion. ceasefire." If thats the case...that would be great... ?Barsac lay down backwards, his upper body hitting the bed with a thud. As the commander of the air defense company who is directly responsible for commanding the frontline air defense operations, he used missiles first and then guns, going back and forth all day and night. Before, he had been holding a tight breath, so it was fine. But now he suddenly relaxed and felt all over his body. They all seemed to have been drained of energy. "but." At this time, Lieutenant Colonel Pakovich changed the topic again: The Americans act capriciously and have no credibility at all, so we cannot relax our vigilance too much. If they replace people but end up regretting and starting the war again, we dont seem to have a good way to deal with it..." The other side. Huaxia, Beijing. The meeting organized by the General Staff at Sanzuomen has basically come to an end. After all, Mr. Zhang has other external itineraries and there is no more useful information at hand, so it is impossible to keep driving. As for how to end it There is no effective result discussed yet. Everyone agrees that the current problem is that the contradiction only exists within the attacker''s camp, allowing the United States to delay time relatively easily, or even wait until the limelight has passed before relaunching operations. Hence, it is best to exert some external pressure to make it difficult for the United States to take both internal and external considerations into account. At that time, in exchange for the removal of this external pressure, the Allied operations will be officially stopped. ?However, this kind of thing is easier said than done. Mainly in this era, China is still lagging behind in terms of ability and experience in exerting extraterritorial influence. It would be okay to plan ahead and sneak in some key equipment and so on, but at this juncture, there is not much that can be done. ?This made everyone present feel a little regretful. ?However, when sleepiness comes, give me a pillow. Just when he was about to announce the end of the meeting, another intelligence officer from the Second Bureau hurriedly sent a piece of information. After reading the content, even Mr. Zhang, who was the most calm and composed, couldn''t help but shake his hands. Mr. Zhang? Fu Youquan naturally had the right to directly check the information, but when the leader was present, he couldn''t get over to take a look, so he had to ask in a low voice. Comrades, there is news from the Balkans. Lao Zhang put the intelligence folder back on the table, raised his head and looked at the people in front of him: One of the two pilots of the B2 bomber, Brigadier General Bonn Marot, commander of the Eighth Air Force, was captured. (End of this chapter) Chapter 707 Breaking the Balkans! Chapter 707 Breaking the Balkans! In an instant, everyone in the house was shocked! Including Chang Haonan. Before he was reborn, he had not actually studied the entire process of Allied operations, so he did not know the specific origin of the B2. Let alone others. On the one hand, since the defender''s ground forces have been facing high-intensity air suppression for a long time, their range of activities is often very restricted and can only be near concealed locations, which is very disadvantageous for tasks such as hunting down parachuting pilots. ?In the roughly twenty days since the Allied operation began, several parachuting pilots who shot down the results were eventually taken away by the search and rescue units of the Allied forces. ?On the other hand, the pilots military rank seems a bit too high... Brigadier general, in principle, should correspond to the senior colonel on the Chinese side. But in fact it cannot be calculated like this. The highest-ranking school officer and the lowest-ranking general officer cannot be completely equated in meaning. Furthermore, the officer staffing level on the US military side is correspondingly lower. ?For example, a flying wing roughly equivalent in size to an aviation division, the wing leaders military rank is only that of colonel. ??For ships such as aircraft carriers and cruisers, the captain''s military rank is only colonel. In short, in the U.S. military, brigadiers are basically senior officers who are separated from front-line command positions. It was a bit unexpected to personally fly a bomber halfway around the world on a bombing mission. It seems that the other partys original goal of launching this air strike is indeed the same as we had guessed before. Fu Youquan picked up the intelligence document and glanced at it briefly: Specially sending a commander with such a high military rank to serve as a pilot may only be due to the need for confidentiality. Low-level officers may not have the authority to know the true purpose of the mission. "In this case...the conditions we just discussed will be achieved, right?" Liu Yaoshun had already put his hat on, but now he took it off and put it back: "The U.S. Air Force is almost equivalent to our military air force, especially the 8th Air Force, which is a purely strategic bomber force. It is affiliated with the Air Force Global Strike Command and belongs to the first order of nuclear deterrence. At the peak of the Cold War, This force will maintain a certain number of bombers on patrol 24 hours a day to avoid being wiped out on the ground by the first round of nuclear strikes." "The capture of the commander of such a unit is definitely a major loss not only for the Allied operations, but also for the entire US military. It is hard to imagine that the US military did not rescue this pilot." Rescuing pilots behind enemy lines is a very difficult task. Fu Youquan closed the folder, put it on the table, and shook his head: "In response to this Allied operation, the General Staff set up a special staff group to study the coalition''s air force and the application of special forces tactics. In general, the reason why the previous rescues were all successful was mainly because of the range of anti-aircraft missiles. It is relatively far away, and the locations where the planes were shot down are outside the city, making it easier for pilots to locate and search. "But this time, although we don''t know exactly where the plane hit, the fact that it crashed on the outskirts of the city shows that the pilot most likely parachuted over the city and probably landed in a densely populated city with a large number of troops. For combat search and rescue, , basically a target that cannot be rescued. After hearing this analysis, Chang Haonan nodded slightly. After all, no matter how important the pilot is, he cannot save Grandpa. Send a few more and you will become a clown. In short, it seems that there is no need for us to take action at all? Liu Yaoshun did not continue to struggle with the previous issue, but returned to the core topic at the beginning: "No matter what, this Brigadier must have enough cards. If he appears publicly in the media later and threatens to try him as a war criminal, then the United States will have to pay a price even if it is just to appease domestic public opinion. Get the people back!" The situation seemed to suddenly become clearer. ?Substituting a brigadier general for the truce can be regarded as finding a step for the United States (although it is still a bit embarrassing). Who cant make cards out of thin air? ??Furthermore, the card of Marlott was not created in the void, but was sent by the Americans themselves... Another officer also added with a smile: Not only that, I estimate that there will be more than one country that wants to try Brigadier Marlott ?Everyone also reacted one after another. From the perspective of several European countries that have suffered huge losses, this person is obviously the culprit, and it is impossible to just expose him casually. In other words, for the sake of its own public opinion, the European side may even abandon the Americans and conduct extradition negotiations alone? That shouldnt be the case. ??The officer who just spoke shook his head: "However, with reference to the Cavalese cable car tragedy that occurred in Italy last year, it will definitely put pressure on the United States, and it is likely to propose a military trial within the framework of NATO. In short, the current conditions are indeed more conducive to a ceasefire and the alliance can successfully suspend the The probability of military action is not low. ?Amidst the relatively optimistic opinions, Mr. Zhang and Fu Youquan, who had just read the original text of the intelligence document, did not appear particularly relaxed. Including Chang Haonan, they also felt that things should not be that simple. ?The idea of ??using important captives as exchange chips is certainly correct, but the operation may not be as smooth as imagined. Sure enough, after a while, Mr. Zhang coughed twice: Comrades, dont focus entirely on the Americans. "This condition is actually not difficult for the United States to accept. However, there is only one chance to use prisoners as bargaining chips. If after the Allied operation is over and the storm subsides in another two years, they come back, What should we do? Even if the equipment and technology developed by Comrade Chang Haonan were there at that time, or even if they were upgraded, would it be possible to shoot down another B2 by chance and capture another pilot? ?This question made the atmosphere at the scene calm again. Even if most people here believe that the interference with GPS was deliberately set like that by Chang Haonan, they still have to admit one fact - ?The reason why Allied Operations has reached the dead end it is today is mainly because the United States committed suicide and a series of coincidences. ?Whether it is passive search radar or GPS directional jamming equipment, they only play a "catalyst" role. Therefore, if it is true as Mr. Zhang said, if the Allied operation is repeated in two years, it will be almost impossible to get the same result. ?There was a moment of silence. Speak of this. Fu Youquan looked at Chang Haonan, who had been invisible since he introduced the principle of GPS jamming before: Comrade Haonan, it seems you havent spoken before? "this" Chang Haonan was shocked when his name was suddenly called: General Staff Meeting, after all, I am not a member of the General Staff In this kind of situation, you still need to have a correct attitude. Lao Zhang, who was at the top of the list, waved his hand: Hey, there are no taboos in internal discussions, and it wont be short of the time you have to speak. Chang Haonan did not rush to speak. Instead, he looked around first and pretended to be harmless to humans and animals. In particular, he looked at Ding Gaoheng specifically to make sure that the latter meant the same thing: ThenI dare to say a few words Fu Youquan nodded as he picked up the cup and drank water, and cast an encouraging look at him. Then send someone there O Ahem Seven words made almost all the more than 20 generals present unable to hold their nerves. Although it is said that there are no taboos, you are a bit too taboo-free... Of course its not just our own faction ?Chang Haonan also realized that he was indeed a bit of a blockbuster, so he quickly made up for it: "What I mean is that since the Americans were playing the human card at the beginning, they might as well use the trick. As long as the Allied operation can be ended in name, we can propose in the Security Council that in the name of peacekeeping, the five major good...the five permanent members of the Security Council Jointly dispatch peacekeeping military units to the Balkans to prevent another human crisis! (End of this chapter) Chapter 708 Air Force, opportunity to go abroad Chapter 708 Air Force, an opportunity to go abroad Those who can sit in the conference room of Sanzuomen are definitely not ordinary people. ??Although I was quite frightened by Chang Haonan''s surprising language at the beginning, this was mainly because the word order was reversed and the emphasis was placed on the front. After listening to his entire train of thought, everyone quickly figured out the key points Do you think Chang Haonan is talking nonsense? ?Then he is not talking nonsense. In fact, even in the original timeline, after the Allied operation ended, a group of "peacekeeping" units were stationed and maintained their presence for a considerable period of time. It''s just sent by the EU. Thats right, sending peacekeeping troops is never something that only the United Nations can do. As long as the host country agrees (or is agreed), other international organizations and even a single country can also do so. ?Of course, the outcome of the last Allied operation was a complete victory for the coalition forces, so naturally there is no fairness in this so-called "peacekeeping". It is just another set of nice words for "military occupation". Even if other countries outside the region have the intention to do so, they have neither the status nor the ability to intervene when the battle has already been fought and the defenders have been severely defeated. ?However, the situation today is completely different. The situation in the Balkans is close to an end for almost all forces. Under such circumstances, it is natural that the United Nations, which presides over "equity and justice", should step in to control the situation. Furthermore, for the five great virtuous people, they are all decent in terms of face. The United States launched the allied force operation in name to protect people. Now that peacekeeping units are stationed, and the U.S. military is included among them, it can completely declare to the outside world that its original goal has been achieved, the allied force operation has achieved complete victory, and it is logical to withdraw its troops. win. For Britain and France, which have been bombarded, they can also explain internally that they withdrew from the operation as soon as possible in response to the losses they suffered in the Balkans, and it was precisely because of their "tough" stance that the United States was Forced to end Allied operations, maintain prosperity and peace in Europe, and win. As for the subsequent compensation and apology, that is another matter and has nothing to do with the situation in the Balkans. For China and Russia, who are currently on the defensive, they can turn the situation that was almost a sure loss into what it is now, preserve the Balkans that is almost torn apart, and even legitimately regain some influence on the region. Strength, definitely make enough money, win. ??Now it is okay to choose to end things as soon as possible and give the Allied operation a decent end. Winning five times means losing money. However, just like all the wonderful ideas that Chang Haonan has proposed before, the plan is a plan and the execution is execution. The reason why this idea was first proposed by him was mainly due to his broad thinking. ??For someone who has experienced the 2020s, peacekeeping is daily news that can be seen anytime and anywhere. There is also a standardized execution system for personnel selection, troop allocation, daily operations, etc. But not in the late 1990s. ??Although China has had experience in similar operations before, it was only to neighboring countries. It dispatched engineering troops, and the mission it performed was to maintain peace. ?This mission proposed by Chang Haonan is not on the same level at all. They are only the same in name. ?Hence, no one immediately expressed clear support. The issues that professionals have to consider are far more complex than those for laypeople. This is the same as building an airplane. ??The military only needs to write down a few key indicators to put forward technical requirements, but to implement them, it will have to mobilize countless manpower and material resources and spend months or even years. Now the situation is just reversed. So Chang Haonan is not in a hurry. ? Judging from the expressions of others, especially Mr. Zhang and Fu Youquan, it is not difficult to judge that they have begun to think about specific operational issues. And this is an attitude in itself. ???In the end, it was Mr. Zhang who set the tone: We do not have the final say on peacekeeping missions, so there will definitely be no results from the discussion at this meeting. It is already past noon, so I suggest adjourning the meeting temporarily. However, I will have a phone call with General Anatoly Kvashnin of the Russian Army in the afternoon. If the superior leadership does not object, then we can communicate on the phone about the possibility of this matter at the implementation level..." In addition, regardless of whether it can actually take place in the end, the General Staff must formulate a detailed plan in accordance with the standards of regular military operations, especially at the level of logistics supplies and emergency response. ?Fu Youquan, who was suddenly called upon, quickly replied: "yes!" Lao Zhang closed the notebook in his hand and nodded with satisfaction: On the one hand, this plan is indeed feasible, and there is a high probability of obtaining preliminary approval from superiors. The faster and more detailed the plan is, the stronger the confidence it will give to superiors. On the other hand, our country has been in a peaceful environment for a long time. Such an action plan with a practical background, even if it is only a paper exercise, is of great significance in improving the capabilities of the staff. Also, the Air Forces newly established strategic transport aircraft unit must also be prepared. He looked at Liu Yaoshun on the other side: "If we really need to deploy forces to the Balkans, the efficiency of taking the sea route is too low. Only air transportation can meet the timeliness. It is also a window for our military to display to the outside world. In the past two years, the superiors have allocated funds for the procurement and training of strategic transport aircraft. Very generous. There is no compatibility issue with the Il-76 when flying to Eastern Europe. If something goes wrong at this critical moment..." Lao Zhang did not continue, but stretched out **** and tapped the table lightly. Hearing this, the latter naturally knew that he wanted to express his position: Chief, please rest assured that since last year, the transport aircraft force has carried out several long-endurance transport missions in unfamiliar airspace in China, and we are confident to ensure the smooth completion of long-distance cross-border transport missions! ??Chang Haonan continued to return to Little Transparency after just finishing his thoughts, but he felt a bit regretful when he heard this. After all, even if his plan is actually implemented, China can still only use imported Il-76MF to perform this task. We can only show the air forces style, but there is no chance to show the capabilities of the aviation industry. Coincidentally, in the previous generation, China''s domestically produced strategic transport aircraft carried out its first mission in Europe. It also flew to the Balkans and delivered a batch of Hongqi-22 anti-aircraft missiles. It''s just that those missiles arrived a little late... ?After the meeting, Chang Haonan packed his things and was about to leave, but he was stopped by Liu Yaoshun behind him. Comrade Haonan. ??For some reason, the head of the Air Force seemed a little worried when he spoke: In your opinion, is this example of using anti-aircraft artillery combined with multi-point passive search radar to shoot down a stealth fighter aircraft repeatable? ?This question was a bit beyond Chang Haonan''s expectations, but he still shook his head decisively: Although I came up with the plan, I must admit that luck played a large part in it. "The reason why they chose anti-aircraft artillery in the first place was because they really didn''t have decent modern air defense missiles on hand. The S125 really couldn''t cope with the dual pressure of interference and low RCS at the same time. If even the early model S300PT, 36DM1 warning radar and The combination of 5N63 fire control radar also has a considerable possibility of burning through interference in close range and narrow beam mode..." "Moreover, the more important problem is that the range and shooting height of the anti-aircraft guns are not enough after all. They can only supplement the air defense after the opponent completes the bomb drop. Just like this time, the B2 has actually dropped the bomb. If not GPS jamming plays a role ?Chang Haonan did not continue, but the meaning was already clear. You will always suffer from air defense afterwards. So a better anti-stealth idea is to use advanced medium- and long-range air defense missiles, paired with radars with passive search capabilities? For us, of course. Chang Haonan replied. Thats goodthats good Liu Yaoshun was obviously relieved: Dont worry about the expansion of the anti-aircraft artillery force (End of this chapter) Chapter 709 The three of us Chapter 709 The three of us Compared to China, which is the manipulator behind the scenes and therefore fully aware of the whole situation, and the United States, which is the culprit and does not know the whole picture but can understand most of the joints, the EU''s response is somewhat slow. ?Mainly because since the Balkan crisis broke out at the end of March, they have changed from talking about the situation in the Balkans to being the soy sauce. ??The situation was completely dominated by the Allied Command in Campania and the Allied Air Command Center in Emilia Romagna. ??The main purpose of the US military launching the Allied Forces Operation was to disrupt Europe and run on the euro. In addition, it has long realized that these European allies are extremely unreliable. The intelligence briefing to them is basically equivalent to sending it to Lubyanka Square at the same time. ??Although the Cold War is over, the inertia is still there, so it is naturally impossible to be open and honest with European "allies". In this case, most European countries actually rely heavily on their foreign media to obtain information from the front line. ?Although it is called a "media", a considerable number of its staff are almost semi-open intelligence agency agents. In normal times, there seems to be nothing wrong with relying on this method, even because he is on the front line and can rely on his status as a reporter to go on a rampage on certain occasions. The speed of obtaining information is compared to that of the Allied commanders who rely on long-range reconnaissance and electronic warfare methods. The department needs to be a little faster. But last night, for reasons well known to all, these media Lost contact. The first person to realize that something was wrong was the French Directorate General for External Security. Its not that this agency is very capable in terms of capabilities, but that their director Yannick Sanson, like Ding Gaoheng, was watching TV because of insomnia at 23:47 local time. ?Then, the broadcast signal suddenly stopped. ?At first, Sanson didnt take it seriously. His first reaction was to call a friend who worked at a national television station. Then I quickly received news that the source of the broadcast signal suddenly disappeared. ?The other party even asked him for help asking what the reason was. ??Next, Mr. Director continued to make the same judgment as Ding Gaoheng, and logically believed that electromagnetic interference may have been released due to military operations. ?However, as a senior French intelligence officer, his contacts in Europe are much richer than those of Ding Gaoheng. ?So he called an acquaintance working in Brussels and asked if there would be a large-scale military operation that night. The answer was that not only was there no large-scale military action at night, but a request from the US military was even forwarded. Allied aircraft are not allowed to fly south of 45 north latitude. ?At this time, Sanson finally began to realize that something was not quite right. Having worked in intelligence agencies for most of his life, he certainly knows that when the U.S. military conducts military operations that truly involve core secrets, it will not share intelligence with its allies. At most, it will only report it after the fact. ?Abnormal situations like this tonight are obviously a signal that the US military is performing a special mission. In fact, at this point, it is impossible for a normal person to imagine that his family was directly hit by six aerial bombs. ??Same with Sanson. ??He simply wanted to know what mission the Americans were performing tonight without telling their allies, even at the expense of interfering with radio and television satellites. After all, he is an intelligence officer. For France, the United Kingdom and the United States are also "very suspicious allies." Some things can be kept secret, but they must be known. So, as usual, he first notified the Inter-Ministerial Intelligence Committee, and then contacted his subordinates and asked them to contact intelligence personnel in the Balkans through "special channels" to confirm the local situation. ?This contact, but there is a problem with the contact - ??The intelligence committee was also unable to contact frontline personnel. ?This is completely different from the nature of the media broadcast signal being cut off. You must know that intelligence agencies rely on military satellites for communication. Although the satellites themselves belong to France, the communication frequency band characteristics are in line with NATO standards. ?No matter what happens, the U.S. military cannot interfere with the communication tools it uses. ?Furthermore, technical personnel from the General Directorate of External Security assured that the satellite was in normal working order and that there were no problems with their communication with intelligence personnel in other parts of the world. In this case, there seems to be only one possibility left... The problem is not with the signal, but with the people or equipment. ? Sansong was already suffering from insomnia and couldn''t sleep, but after being so startled, he didn''t even feel sleepy at all. In fact, even at this point, he still did not think about the fact that his family was killed. He was mainly worried about whether he was controlled by the local counterintelligence agency. ?Hence, Sansons first reaction was to contact his counterparts in Germany and Italy. Because intelligence agents from these two countries also disguised themselves as media and therefore stayed in the same hotel as French television crews. ??If it is really attacked by the other party''s security agency, basically everyone will not be able to escape. Of course the British were also there, but in the eyes of Sanson, a Frenchman, the Angsa barbarians on the other side of the strait were really not one of his own. ??There is also a Spanish media in this hotel, but they are really just media and are not involved in intelligence work. The results were not surprising at all. Cant contact all of them. This further confirmed Sansons conjecture Our intelligence personnel should have been praised. It should be said that his guess is correct to a certain extent. It''s just that this is not the case. ?? Being promoted by the other party''s security agency is a huge dereliction of duty by the leadership of the intelligence agency. Hence, Sansons first reaction was to suppress the matter first. ??Although the intelligence officers were arrested, and they were arrested together with unknowing real media staff, it was a major event that could shock the people, and it was impossible to really hide it. But at least we can find a way to throw the blame away. Early morning local time the next day, 0:20. ?Under tremendous pressure to shirk the blame, Sanson rushed from home to the General Intelligence Bureau''s office half an hour later and held a video and telephone conference with two other colleagues who were also forced to work overtime because they were worried about taking the blame. After some routine bickering and incompetent rage, the three of them realized that the biggest trouble at the moment was that after the Allied operation began, they had cut off official communication channels with the Balkans. In other words, even if you want to negotiate terms with the other party now, you can''t talk. Perhaps... we can try to find a third-party country to coordinate? ?Sanson was the first to try to suggest. Third-party countries? What about? ? Simone Crosetto, director of the Italian Foreign Intelligence and Security Service, shrugged, obviously not very optimistic about this idea: And more importantly, we have no leverage. Originally, opinions within the EU on the Balkans were not unified, and quite a few people believed that a strategy of maximum pressure should be adopted in order to maximize interests. ?Once you really break your skin, there will be no room for maneuver. ?However, overconfidence and the Americans'' fanning the flames from behind still caused this relatively rational voice to be drowned in the end. Crosseto was one of the important supporters of this point of view. ??Nowadays, the way I speak is naturally a bit strange. "We will talk about the exchange of intelligence personnel later. The top priority is that we must understand as much as possible about the situation. It is not only our agents who have lost contact this time, but also many people from several media outlets. We cannot hide it for too long. If we don''t know everything when faced with questioning, the situation will be in trouble..." ???The head of the Federal Intelligence Service, Volker Luedler, is a German in the traditional sense. He is old-fashioned and unsmiling. Seeing that the other two colleagues seemed to have a tendency to fight among themselves, he quickly made peace in the middle: "When the two Germanys were reunified, in order to express goodwill, our intelligence agency recruited some Stasi members. Although the arrangements were for work that did not touch the core business, we can still use these connections to cooperate with our old rival the Federal Republic of Germany. Contact the Security Bureau and ask them to act as an intermediary. Even during the Cold War, both sides of the Iron Curtain maintained fairly smooth channels for information exchange, let alone now. "But...it is also possible that the FSB was behind this incident. You must know that the TV broadcast signal was suddenly cut off, and all our media and intelligence personnel lost contact almost at the same time. Such a high-level counterintelligence operation could only rely on the Balkans It may be difficult for regional security agencies to do so. ?Sanson is still a little worried: If we contact each other like this now, will it happen... He was still a little worried about losing face. Crosseto seizes every opportunity and continues to be weird: It doesnt matter, anyway, we have often lost people like this in the past half century, and we dont care if we lose them once or twice more..." ??Rudler knew that now was not the time to quarrel, so he quickly intervened before Sanson Hongwen: Anyway, we dont have any evidence yet, and were not even sure what happened. Besides, even if the Russians take action, we can first listen to their conditions... After some coordination, the three people finally managed to unify their opinions. In fact, from the perspective of Rudler, who knows the Russians better, this matter does not look like the handiwork of the Federal Security Service. There are agents hidden in the media, which are basically known to the Russians. ??But no matter in terms of ability or willingness, the other party has absolutely no reason to take action at this time point. ??Moreover, he does it without any discernment. The way he behaves is too rough. ??Moreover, the role that the intelligence personnel of the three countries can play is actually not much different from that of the real media. There is really no need to go to war... ?But as to what other possibilities there are, Rudler really can''t guess. More than a hundred people, all lost contact. ??If it werent for being controlled, could it be possible that they all died? ?Just as he was thinking this, the phone on Sanson''s desk suddenly rang on the other side of the meeting. Logically speaking, when this kind of leader is in a meeting, unless there is something shocking, his subordinates will not call in. ??The latter was about to turn off the voice system when he heard the phones ringing from Crosetto and Rudler. The three of them picked up the phone almost at the same time. Director, we just received news from our staff in Brussels. ??The slightly anxious voice of his subordinate came from Rudler''s phone: "Our intelligence station in the Balkans suddenly experienced a violent explosion just before midnight. The casualties are currently unknown. According to the current information, it is likely that a bomb dropped by a US B2 bomber... But this The bomber did not seem to have returned, and it was probably shot down by air defense forces..." ?) ??Ldler never expected that the possibility he had just thought about would come true. His mind suddenly buzzed, his vision went dark, and he almost lost consciousness. After finally recovering, he quickly raised his head and looked at the TV screen in front of him. Even though all three of them turned off their voices, the other two looked like they had seen a ghost. The news they received should be the same... The news spread to the top levels of major EU countries in a short period of time. In fact, at this point, their speed in obtaining information is still far ahead of those in Beijing and Moscow, which are thousands of kilometers away After the B2 was shot down, in order to completely blow up the wreckage and rescue the pilot, the US military dispatched the entire deck of the Roosevelt and launched a very high-intensity attack wave. Therefore, although the overseas agencies of the latter two were also aware of the explosion, However, due to strong electromagnetic interference, there was no way to transmit the information back to the country in the first time. ?In addition to being anxious, we can only take risks and go out in all directions without clear instructions to see if we can collect some useful information. However, in the following hours, the EU countries did almost nothing except holding an emergency meeting of leaders and saying a few nonsense words at the press conference. This is actually understandable European countries are already highly dependent on the US military for their defense. ?However, this time the culprit was the other party. Who can we turn to to seek justice? Until almost morning, the United States gave an explanation that "an anti-aircraft missile missed its target and then hit by mistake." ??Everyone knows that this statement is nonsense, but for European countries that dare to be angry but dare not speak out and do not want to make the matter bigger, it is a relatively easy choice to calm down the matter. ?As long as you put the blame on the enemy, you will be innocent. Originally, everyone was ready to cooperate. ?In the end, within a few hours, several international media outlets that were not too concerned about the excitement exposed a clear photo of an unexploded bomb Three GBU31. At present, only the US military is using it. ?Now, even covering the lid is a luxury. ?In order to calm domestic public anger, all countries had no choice but to make further decisions to suspend participation in allied operations. Then The state of brain death continues to be maintained. And this also caused them to miss their last opportunity to seize the initiative... (End of this chapter) Chapter 710 Balkans, the end Chapter 710 Balkans, the End Obviously, not everyone will die with the Europeans. In the face of such a major event that is likely to change the direction of the world line, it is extremely important to take the initiative. It should be said that the U.S. military was extremely efficient in this regard. It completed a series of post-event disposals almost within two hours of the Spirit of Kansas being shot down. If it weren''t for the unlucky Brigadier General Marlott who happened to be ejected almost to the city center and went in the wrong direction due to GPS interference while heading to the suburbs, the helicopter of the combat rescue team waited for half an hour and was not seen. The figure is forced to retreat, and the negative impact of this incident may even be narrowed to a very small extent. Its a pity that there are some things that cannot be avoided. Wrong targets, unexploded bombs, captured brigadiers. Their situation suddenly became very embarrassing. The world, in many cases, is actually turn-based. ?After the American with the fastest reaction has finished playing his cards and the European with the second fastest reaction has lost the connection and burned the rope without having time to play the cards, it is the turn of others. On the afternoon of April 18, as mentioned at the General Staff Meeting, Mr. Zhang and Fu Youquan held a round of remote meetings with General Anatoly Kvashnin to discuss the dispatch of units to carry out peacekeeping operations in the name of the Security Council. possibility. In fact, the core purpose is to raise fire You old Russians have been important players in the Balkans for the past two hundred years. Although they have shrunk now, they are no longer just cats and dogs. Now Americans are just that. Even the European Five started to cause trouble, and in the end they still Internal strife has begun. Can you bear it if you don''t do something now? If you can bear it, you can eat it... The relationship between your second uncle and your father has been ups and downs for so many years. Now that such a good opportunity is in front of you, you must not be able to go it alone. I have already prepared to do something. If you dont follow, I will look down on you... ??The positive words will definitely not be so straightforward, but that is what they mean. ?Of course, if Gonghuo returns to Gonghuo, the other person is not a fool after all. ??If you want to persuade others to take advantage of the fire, you will definitely have no hope of relying on words alone. In the end, you still have to rely on benefits. As it happens, if the plan proposed by China can be implemented, the Russians will probably be the ones who can take advantage of it the most. Because they are in the Balkans and really have a force that can be mobilized immediately. In fact, Chang Haonan was able to come up with this idea at that time, largely inspired by this army in the previous life... A few hours later, local time, on the night of April 18th. Border of Bosnia and Herzegovina. ?Sgt Matthew Condit, who was standing guard, stood in the machine gunner position of the Humvee as usual, looking at the road in front of him boredly. Searchlights and headlights can only illuminate a distance of about a hundred meters. To the human eye, places farther away are completely dark, as if leading to an abyss. Even on normal days, there are not many vehicles passing through here. What''s more, since the Allied Operation began, the checkpoint has become a theoretical war zone. ?Although the border area has not been directly affected by the war, except for a few unlucky ones who live on one side and work on the other, it is even less likely that anyone will take this road. Especially at night. However, just when he was already feeling a little sleepy, the roar of a diesel engine suddenly came from far and near. It doesnt sound like one yet. But a convoy. ? Condit cheered up and stood up a little straighter, but still did not put his hand on the handle of the M2 machine gun. Since he was standing at the highest position, he saw a row of car lights traveling along the road in the distance earlier than others. Other people on the ground who were standing guard with him had spread out, preparing to conduct routine inspections of the convoy. Generally speaking, the trucks passing through here are used by international organizations to transport supplies (and of course smuggling), and inspections are only routine. As long as the driver spends a little money, even this routine can be skipped. As the opposing convoy gradually approached, a lieutenant in charge of the sentry came to the middle of the road, crossed his hands above his head, and signaled the other party to stop. But soon, they discovered that something was wrong. ?The other party suddenly turned on the high beam, making the people on the ground unable to open their eyes for a while. ?However, Condit, who is in a higher position, was not affected too much. What appeared under the searchlights did not seem to be the expected convoy of trucks. The one headed by the car, judging from the outline, seems to have a turret... Its a tank...no, it should be an armored vehicle? ? Condit almost subconsciously pulled the charging handle and shouted loudly to his comrades below. In this flash of time, the opposing team had already approached some distance away. ?Now, even a few people on the ground can distinguish the distinctive outline of the BTR armored vehicle from its outline. The words "KFOR" seem to be visible on the lower armor plate of the lead car. ?) The US military was a little confused for a while. KFOR was a force prepared to move into the Balkans to take control of the situation following a successful Allied operation. ??Although it is still in the preparation stage, it has actually been sent near the border under various names. By then, you can just change your clothes and rush in - Thats right, its actually them. ?Now, when seeing this logo that belongs to you appears in front of you, everyone will be confused for a moment. In fact, if we put it aside 10 years ago, when we saw BTR, we could already judge whether the opponent was an enemy or not a friend. However, since the 1990s, a large number of countries equipped with Soviet-style equipment have become their allies or quasi-allies, which directly makes it completely unfeasible to rely on equipment models to distinguish between ourselves and the enemy. And just in time, in order to show "sincere unity", there are actually several teams from different countries in Eastern Europe in the KFOR sequence. Is it our turn to rush in? ? Condit couldn''t remember where his KFOR armband was thrown. If he needed it now, it might be a bit troublesome. ?The lieutenant standing in the middle of the road still had the same posture as before, trying to check the identity of the visitor. But not only did the other party have no intention of stopping, the sound of the diesel engine actually became louder and sounded like it was accelerating. ?At the same time, the two sides finally got close enough to see the details of each other''s vehicles. The first car seemed to have a white, blue and red tricolor flag on its side... ?Condit, who had just woken up from a dream, wanted to turn the machine gun, but then realized that he had not actually received the order to fire. ??Furthermore, our side currently only has one 12.7 and a few 5.56s, while the opponent''s worst firepower is 14.5, and there seem to be a few 30mm... ??If you really get into trouble, it seems to be a bit of a disadvantage. Its hard to say who was saved by the sergeants momentary hesitation, but in short, the opponents convoy arrived almost in an instant. ??The lieutenant who was standing in the middle of the road jumped to the side with quick eyesight and quick hands. With a loud "bang", the checkpoint''s blocking pole was knocked away, and a dozen BTR armored vehicles filed into the other side of the border under the watchful eyes of a group of US troops... Lieutenant? After the smoke and dust raised by the motorcade cleared, Condit turned to look at the lieutenant who had not even touched a gun during the entire journey. The sound of the diesel engine gradually faded away, and the scene became quiet again. Nothing seemed to have happened except for the broken barricades. The lieutenant calmed down his frightened mood: Report to the superiors and tell them that a KFOR convoy has just passed the checkpoint and ask if we need to follow them. But that was Russia just now The other person next to him looked shocked. After all, the other party didnt even take off the national flag on the car. The reason why it was written KFOR was obviously not to confuse them. ?Either he wanted to express his dissatisfaction for not receiving an invitation when KFOR was formed, or it was just a simple prank. ??But before he finished speaking, he was interrupted by the lieutenant: I only saw an Allied convoy with the KFOR logo on it, what about you? ??The radio operator understood immediately and quickly adjusted the channel to try to get in touch with his superiors. Early the next morning, news that shocked the world came. A VDV fleet of about 200 people has arrived at the central airport in the Balkans. ?Faced with doubts, the Russians are also very convincing: Isnt the Allied Operation over? Then it should be reasonable for me to be invited by the host country to maintain peace here, right? Your action caused the tragedy of more than a hundred civilian casualties the night before yesterday, most of which were your own. Is it to protect people as promised? I told you not to take me with you when you formed KORF. Are you being punished now? Now that the chaos is like this, if you dont rely on me to maintain peace, how can you still rely on you? "Now that my people have been sent in anyway, it is impossible to come out. However, I am willing to serve as an intermediary to host the exchange of prisoners, and to form a completely open investigation team to investigate what happened the day before yesterday. All countries and organizations that want to participate, we All welcome. After this statement, Huaxia also stood up and said that I have already told you that peace is the most important thing and not to engage in war. You see, things are now in chaos. ??Furthermore, since the eldest nephew has spoken, as one of the five good people, I cannot shun international responsibilities, so I reluctantly set an example and agreed to send someone to join the investigation team. I also support the disclosure of the entire investigation process and results... For such a big matter, investigation is definitely inevitable. Otherwise, there would be no way to give an explanation to the people of the countries involved. ??However, both the United States and the European Union have their own agendas, and it is obviously impossible to allow the investigation results to be truly open and transparent. At least it cannot be open and transparent led by the Russians. ?Who knows what will be found? ??Moreover, Brigadier General Marlott is still in the hands of the opponent. If the time drags on for too long, there is no guarantee that a confession will not be made. Obviously, the knot must be cut quickly... Therefore, the United States immediately proposed that if the investigation is to be fair, it must not just stuff people into it, so it should be organized within the framework of the Security Council, which is fair and just. Considering the safety of the investigation team itself, and in order to monitor the follow-up human situation in the Balkans, a peacekeeping unit should also be established in the name of the Security Council on the basis of KORF. In the end, after several rounds of wrangling, KORF was finally expanded into a force composed of nearly 30 countries, including the five permanent members. In order to muddy the water, a lot of soy sauce was even included. member And the turbulent situation in the Balkans ushered in temporary peace in such an anticlimactic form... (End of this chapter) Chapter 711 special souvenir Chapter 711 Special souvenirs One week after Operation Allied Forces officially ended. Wu Yifan, of course, is on the surface a Russian businessman (suspected) Zamusu who was entrusted by the Ermao Ministry of National Defense to provide building materials for the construction of military camps. Along with a transport plane transporting humanitarian food aid, he landed in a building that had been destroyed. An airport controlled by Russian airborne troops. Even for peacekeeping, the distinctions between different camps are obvious. Although it is impossible for more than 30 countries to build separate military camps, after all, a considerable number of them only send single-digit personnel, in order to avoid causing conflicts, KORF has preset four far apart stations. ??Wu Yifan is responsible for the Ermao part of the camp in the CIS countries. ?Before this, although he had long-term business dealings with people here, the transaction locations between the two parties generally chose Greece, Hungary or Romania. At most, it was just like last time, they would deliver the goods immediately after crossing the border and then leave. So, this is actually the first time he has come to the Balkans in a real sense. There are naturally no portholes in the cargo hold of the transport plane, and only a few dim lights provide some illumination. Therefore, the moment the tail door opened, the few people standing at the door were subconsciously blocked by the strong light that suddenly shone in. eyes. After their vision recovered, everyone could clearly see the scene outside the plane. ??The main purpose of Wu Yifan''s visit this time was really to inspect the local environment and prepare for contracting projects, so he brought a few right-hand assistants with him. Brother, why do I feel like...this place doesnt look like it just had a war? ?Yan Yong, who was standing nearby, said in Russian with a Buryat accent. Most Chinese people''s understanding of war basically comes from past war movies, but most of the movies during this period showed World War II, and the intensity was obviously not the same as modern local wars. Therefore, it is difficult for Yan Yong to believe that a person who fought There is such a complete runway and airport in a place that is nearly a month old. ? Even if you stand on the tarmac and look around, it seems to be no different from normal cities in China. Even the architectural styles are similar. The technical level of fighting wars now is much higher than in the past, and the scope of impact can be controlled to a relatively small range. ??Wu Yifan asked the airport workers who had boarded the plane to unload the cargo and walked off the plane along the vehicle ramp, while replying: And look, there are some areas on the runway over there that are obviously different in color from the ones next to them. They were probably repaired in the past few days, which means this area must have been bombed, but the post-war reconstruction was done well. The things he has been messing around with over the years are basically related to weapons and equipment. In addition, after being roped into the "thief ship" by Chang Haonan recently, he has made a special effort to gain a wave of relevant knowledge. Therefore, in front of a simple layman like Yan Yong, he is still Able to act sound and clear. The latter didnt know what his boss was talking about when he went to the Balkans. He just mentioned it casually and did not continue on this topic after receiving a response. Not far from the transport plane, there were already several jeeps with military license plates waiting for them. ??An officer wearing the rank of colonel stood next to him, followed by two fully armed soldiers. In the 1990s, the military uniforms of the CIS countries were extremely confusing and highly similar in shape and style. Even people like Wu Yifan, who had been involved in them for a long time, sometimes could not tell which army the other party belonged to. Arman Rachmanov, the commander here, of course, is still a mere commander. ?It wasnt until the colonel came up to shake hands with him and introduce himself that Wu Yifan saw the blue and yellow flag on the side of the other persons arm. No wonder the other party said that he was a polished commander. The VDVs that raided two airports a week ago were naturally sent by the Russian army alone. In order to compete with them for the initiative, after the US military learned the news, they also asked the British army to send a special force from Macedonia, risking being intercepted by air defenses. The risk of downing fire (while still theoretically engaged) preempted several key positions. In addition to these two forces, other countries that have joined KFOR have currently only sent coordinators and observers. So, the two mysterious men at the back holding guns and without any markings on their clothes should be soldiers from Da Mao''s side. ?In this day and age, although the relationship between the few friends cannot be said to be very good, at least it is decent in terms of face. Zhamusu, no surname, this is my contract document. ??Wu Yifan took a hard-cover folder and his ID from Yan Yong''s hand and handed them to Colonel Rachmanov opposite. The document is forged, and none of the information on it matches the real person except gender. ?Of course, it can be said to be true to a certain extent, because it was indeed issued officially by Mao, and no one would be able to find out the problem. ?However, these preparations were obviously unnecessary. The other party just glanced at it casually and signed his name at the end of the document. While returning the folder to Wu Yifan, he skillfully put an envelope hidden underneath into his pocket. ?As long as the money is in place, he obviously doesn''t care who the visitor''s true identity is. So... lets go to the place where we are going to build the military camp now? Lao Wu looked at the jeep behind the other party. No, no, no. ?The other party waved his hand: "The place where the peacekeeping units are to be deployed is not in this city. It is in the south of the country, about 300 kilometers away. We have to wait for contractors from several other countries to come over before we go there together. You can move around freely in the past two days. " But Rachmanov took Wu Yifan and his entourage to the side of the motorcade and opened the door for him personally: "Almost all the water and electricity infrastructure here has been destroyed. Three-quarters of the city is dark at night. The only area with 24-hour power supply is blocked. Outsiders need special procedures to enter. In fact, there is not much to do. , if you need it, I can recommend some good restaurants to you. Is there any place to have fun? ??Yan Yong actually means dance hall or bar. ?But Rachmanov obviously got it wrong: There will definitely be, but for safety reasons, I dont recommend you to go for that kind of fun. ? ? Obviously Lao Wu didnt really have fun. At least thats what he told Chang Haonan later. After settling in the temporary residence, the first thing Lao Wu did was to contact Lieutenant Colonel Danny. Luckily, the other party answered the phone, and the former''s worst worry was not that the old acquaintance did not survive until the end of the war. ?But it was Captain Barsac who finally came to meet him. No, he is already a major now. The colonel is going to attend a meeting soon, so let me come over to receive you first. ?Barsak, who was dressed in casual clothes, patted Lao Wu on the shoulder. After the two got into the car, the latter asked in a low voice: I heard that you guys shot down a big guy a few days ago. Is it the same as last time... ??Wu Yifan has not returned to China recently. Even if he did, he would not have the chance to get any inside information, so the only information he knew was what was reported in the public news. ?However, combined with the batch of things Chang Haonan specially asked him to send before, it is difficult not to make people think of it. Thats right. ?Barsac didnt mean to hide anything: Thanks to the shipment you sent last time, otherwise, even if we found the target, we wouldnt be able to capture it. As the officer in charge of the launch unit, he didn''t know much about the two passive detection radars, but he knew very well that although the anti-aircraft artillery shot down the target largely depended on luck, if the S125 anti-aircraft missile was still used, then There won''t even be a chance to try one''s luck at the end. Its actually possible to defeat it ?Wu Yifan''s reaction was basically the same as when Barsak himself first learned the news. In fact, when he first saw the batch of goods, although he listened to Chang Haonan''s general introduction, he still couldn''t understand why such a big effort was needed to transport a batch of electronic components and operation manuals. After all, it doesnt look like something that can turn the situation around. But it turns out it can. ??Although various stakeholders have publicly claimed victory in the Allied operation, anyone with a discerning eye can see that this operation was almost a Waterloo for the Americans. Yeah, we didnt expect it at first. ?Barsac replied while driving, and then lowered his voice: To express my gratitude, I also prepared a souvenir for you. Souvenir? Old Wu raised his eyebrows. He was basically only interested in money in the past, but after making a lot of money over the years, he also became obsessed with collecting some weird gadgets. You will know when you get there. As he spoke, Barsac skillfully parked the car next to an inconspicuous building: Its just a bit big in size and may be inconvenient to carry around. It doesnt matter. We are in the construction business and have trucks. ?Wu Yifan didnt take it seriously either. After all, it is a "souvenir", no matter how big it is, it can be as big as it is. However. Soon, he saw a dark, irregular piece in front of him, about the size of a person. The words "AF8901" are still faintly visible on it. Lao Wu made a bold guess. But I feel its a little too bold: This cant be "I have confirmed the fragments of the aircraft we shot down in the past two days. They are on the back of the aircraft. Although the area is not the largest, the preservation condition is not bad. More importantly, there is a relatively complete aircraft. Number." ??Barsac patted the fragment gently: "If you find it inconvenient, you can leave it with me temporarily and come back to pick it up when you go back." So this isB2s? Thats right. The major nodded. Lao Wu felt happy at first. After all, no one in the world would have the chance to collect this thing. But in an instant, he realized that this thing might not be suitable for him to keep... (End of this chapter) Chapter 712 settlement after war Chapter 712 Post-War Settlement In fact, Wu Yifans understanding of B2 basically comes from various news he has heard and seen these days. He probably knows that it is a very powerful strategic weapon. Then Its gone. Although he also majored in aircraft design, he did not study seriously when he was in school, and he was not very interested. He basically relied on cramming and cramming to survive before the exam. After graduation, he threw away his professional knowledge for two years. , has long been forgotten by now, so there is no technical concept. The reason why he felt that this thing was not suitable for him to keep was firstly because he felt that the biggest contributors to the downing of this plane were the comrades on the domestic technical front and the air defense force. Secondly, he was also worried that he was outside almost all year round. If he accidentally If too many people know that they have such a treasure in their hands, they will inevitably make some unnecessary associations. In short, it is safer to find a way to send it back to the country. ??Furthermore, this fragment carries a high commemorative significance. After it is sent back, it can further harmonize its relationship with the country - ?Although he has taken a lot of risks in the past few months, compared to the piecemeal buying and selling in the past, he has made money much faster. In addition to the advance payment from the "Friendship Plan", just by transferring a series of technical data from the Azov Steel Plant back to China, he and his partners received profits that were almost equivalent to last year''s entire year. Only four months have passed. Whats more important is that after embracing such a big leg, our expectations for the future are much higher than in the past. After all, the red-top businessman... Ahem. Looking at the fragment of the plane in front of him, Old Wu had already begun to enjoy the fact that he was at the pinnacle of his life. Just like some people, just after being glanced at by the goddess, they want to think of a name for their child. Barsak next to him was naturally unaware of the other party''s brainstorming at this time. He only saw Lao Wu''s eyes shining, as if he was looking at the lover in his dream, so he naturally thought that the other party could not wait to take away the fragments: "So... do you need me to wrap it up for you? Or, if you think it''s too big, you can handle it a little bit." Take care of it? ?Wu Yifan looked at Barsak. The latter nodded: The most important part of the piece is the one with the serial number on it, so you can cut out the less important parts and that would be more convenient if you really want to keep it as a personal collection. , such as...making it into a craft and framing it." You should understand that this thing will definitely not be seen by others for at least a short period of time, so you can only appreciate it by yourself Although Lao Wu didn''t know whether the fragments were technically valuable, he originally wanted to hand them over to the state instead of collecting them himself. How could he let others cut them up casually? So he quickly waved his hand: NoI dont mean to ?However, as soon as the words came out of his mouth, he realized that he would definitely not be able to tell the other person the truth about the situation, so he had to change his words in a hurry: "I heard that there are a lot of spies from various countries in the Balkans. I just flew here this morning. If I go back right away, everyone will know that I must have gotten something here, and it will attract unnecessary attention." "It''s better to leave it with you first. When I need to return later, I can take it with me in my... uh... cargo. You know, I''m professional in this regard." ??The reason why Old Wu knew Colonel Danny was because he had cooperated with him on this type of business several times before. As a close confidant of the latter, Barsac naturally understood what the "goods" the other party meant. Since the 1990s, the army has been having a hard time. If it had not been for cooperation with people like Wu Yifan, it would have starved to death long ago. And now a war has just been fought. Although it is a tragic victory in terms of the result, on the surface it is a fair ceasefire after all. Moreover, judging from historical experience, it is still difficult to get war reparations from the Americans. So much higher. More importantly, the economic sanctions imposed by the EU have not been lifted. So there will most likely be opportunities for cooperation in the future. ?Thinking of this, Balsac suddenly changed the topic: Speaking of which, since Ermao asked you to be responsible for the construction of the military camp, you must have raw material supply channels and construction capabilities? "certainly." Old Wu nodded: Why do you ask this suddenly? For Eastern Europe, construction raw materials are not a problem at all, and his engineering team comes from an engineering brigade that he has cooperated with in Sanmao. The major shrugged: "Although the war is over, you should also be able to see that the entire country''s production was almost completely destroyed by bombing, so we need people to be responsible for post-war reconstruction. Europe and the United States are still sanctioning us, and it is difficult to find people with suitable efficiency and price. people to do it. Thats no problem, I also have a lot of legitimate business ??Wu Yifan felt that he had to bring the team over anyway, and there was actually no difference between staying for half a month and half a year. But after agreeing, his tone changed: However, in business, you must also have a reliable payment method, whether it is precious metals, US dollars, euros or other hard currencies. Im afraid it will be more difficult to use US dollars and euros, but the current idea above is to exchange for the mining rights of several mineral veins in the middle. This answer surprised Lao Wu: "How could you, a major, know this?" "Colonel Danny is now our national hero, and he has accepted an invitation to join the Council." Thats it ?Wu Yifan lowered his head and hesitated. ?This exchange is indeed very tempting. ?The mineral vein in the central Balkans is a rich gold mine. If you can get the mining rights for 10 years or more, you can definitely make a lot of money. But if he calms down and thinks about it, this kind of investment cycle is too long for him. ??And if he wants to operate a gold mine for a long time, he will definitely not be able to continue to wear the skin of a "Buryat businessman". After thinking about it, it would be more prudent to find another way of cooperation. So he shook his head: I am in the business of making quick money. Mining is too big and returns funds slowly, so it does not meet my investment standards. However, I have been doing foreign trade business over the years, and I have met many large companies that have the ability and willingness to do so. I can serve as an intermediary and contact you. ??Barsak just asked casually after thinking about this, and did not continue to pester. He just left a new contact information for Lao Wu. A few days later Huaxia, Beijing. ?Chang Haonan was also discussing with Ding Gaoheng the topic of the follow-up impact of the Allied operations. "Yesterday afternoon, three of our military observers have arrived in the Balkans in advance to supervise the implementation of the ceasefire agreement and reconstruction work. A company-sized peacekeeping organization has also begun to be deployed from various military regions. It is expected that after the temporary camps are completed, the final It will be available as late as August this year. Ding Gaoheng is obviously in a very good mood today. While making tea, he is talking about what happened in the week after the ceasefire agreement was reached: This is the first time that we have sent an organized security force to perform a peacekeeping mission, which is also a precedent. Normally, peacekeeping tasks have little to do with the military technical department, but after all, this was the idea that Chang Haonan first proposed. ?Although the specific execution process is almost completely different from the original plan - Even Chang Haonan did not expect that the effect of the 200 VDV Superman would be so immediate that the United States directly proposed the establishment of a multinational peacekeeping force, directly giving up some chips to China and Russia. It wont happen anymore. In addition, this morning, the exchange rate of the euro against the U.S. dollar has risen to 1:1.1100. It has finally been able to keep it from falling below 1:1, otherwise it will be a big trouble for us..." Seeing Ding Gaoheng finish making tea, Chang Haonan quickly picked up the teapot and poured water: "Thanks to the fact that on the 18th, the EU acted like a fool and did nothing the whole time... So the international market first learned about the suspension of Allied operations, and only a few hours later did it know that the hotel was occupied by the Americans. Raised." If this process were reversed, Im afraid the panic in the intervening few hours would be enough to pierce the euro... This detail should have been taken into consideration at that time..." At this point, he still felt a little scared. After all, the core of the entire Balkan crisis is actually the fight for the euro. Ding Gaoheng was very open-minded and comforted him immediately: "It is impossible to 100% avoid accidents in the execution of a plan, so when making plans, especially macro plans, you should focus on the big and let go of the small. If you really focus on the details, it will lead to a loss of flexibility. Once a certain step occurs, Problem, it will be easy to lose everything later..." "Now that there is a second currency in the world to compete with the US dollar, we have won a big win anyway, not to mention that this time we also broke the American military myth, with an F117 and a B2. But its a big profit. Speak of this. ?Chang Haonan stopped picking up the tea cup: "Before I came this time, Lao Wu contacted me through the company and said that he had obtained a piece of debris from the B2 bomber. Also, he was currently preparing to exchange the mining rights of a gold mine vein for a complete war machine. Post-reconstruction project. There are actually two main ways for Wu Yifan to contact the country. If it is through the company, it will be directly contacted by Chang Haonan; if it is through an overseas agency, it will be contacted by the relevant domestic departments. Because of well-known reasons, the foreign agencies in the Balkans are currently in a highly sensitive stage, so the former path is safer. ??Although Chang Haonan''s tone was so calm that there was almost no change in tone, the content he said made Ding Gaoheng shake his arms and almost spilled all the tea... (End of this chapter) Chapter 713 Let Americans help eliminate wrong answers Chapter 713 Let Americans help eliminate wrong answers Is there such a thing? ??The latter didnt even have time to wipe the water stains on his shirt: When can he be sent back? Im afraid it will take a few months. Chang Haonan hesitated for a moment and then replied: He went there as a construction contractor. If he left too quickly, it would arouse suspicion. And even if we get the fragment back, we wont be able to display it publicly in a short period of time. We can only put it in a classified warehouse and wait for decryption in the future. In fact, the content that Lao Wu contacted him through the corporate route was all encrypted. On the surface, it was usually some normal business documents that required translation and the information density was very low. Therefore, the other party just told him to wait until he left the Balkans. It will be brought out together when the time comes, and no specific timetable is given. So Chang Haonan can only deduce it reasonably. The exhibition is secondary. Ding Gaoheng waved his hand: "I mean, will it have any research value? I mean...in terms of stealth." I know that in addition to the appearance of stealth aircraft, absorbing materials must be coated on the surface of the aircraft body to reduce RCS reflection, just like the anechoic tiles of submarines. It is very difficult to transmit a picture through confidential means these days. Therefore, Chang Haonan has not seen the fragment yet and can only make some general judgments based on Lao Wu''s text description: "There must be some. At least we can analyze the specific substrate material used in the other party''s stealth coating, and give us a reference for ideas...or to be more precise, help us rule out a wrong answer." "Um" ?This answer was obviously a bit convoluted, so it took Ding Gaoheng a few seconds to react: "Um?" Why do you say it excludes a wrong answer? The only country that currently has applications for stealth materials is the United States. According to common sense, even if you dont want to copy it, you should continue to explore in the other countrys direction. "According to current public reports, the stealth coating used by the Americans is very delicate. Take the B2 as an example. It requires maintenance of the coating after each mission. Considering that strategic bombers have a long mission, they are prone to failure at every turn. It takes dozens of hours to fly, so in most cases it needs to be repainted, which costs millions of dollars alone. "And in order to ensure that the coating does not fail, the aircraft must be parked in a special hangar with constant temperature and humidity. Even if it is not taking off, it must be inspected and maintained regularly... In short, based on the objective conditions of our country, in the laboratory Its okay to do some research, but if you want to make samples or even put them into use in large quantities, its definitely not possible of this nature "and" ?Chang Haonan took a sip of tea and continued to add: The aircraft was burned first and then bombed again. The specific properties and structure of the coating material must have been changed beyond recognition. Even if you want to reverse engineer it... it is not feasible. Ding Gaoheng also nodded with a look of enlightenment after hearing this, obviously agreeing with Chang Haonan''s statement: In other words, will there be a material that can satisfy long life, high resistance and wave-absorbing properties at the same time? Not to mention special hangars with constant temperature and humidity, the Chinese Air Force now doesnt even have many hangars that can protect it from wind and rain. Most of the aircraft are parked in the open air. A few years ago, due to typhoons, the entire army lost more than 100 aircraft at one time. Half of the available third-generation machines. ?Only a few airports in the north have reinforced aircraft forts built during the war preparation period, but they were originally planned to accommodate J-6s and J-7s, which obviously did not meet the requirements just mentioned by Chang Haonan. Based on material science theory and current preliminary research, this is the case. Chang Haonan naturally knew that this thing must exist, because even the Americans themselves had changed their technical route when developing the F35 and used coating materials that had less extreme performance on paper but were more worry-free. Otherwise, I really cant afford to serve you. Money comes second, as long as the money printing machine is used. The key is that the flight frequency and equipment quantity of tactical aircraft are much higher than that of strategic bombers. The average monthly working hours for stealth coating maintenance is simply outrageous. There are really not so many people. Come to work. However, he obviously couldnt speak too fully at this time, so he added another sentence: "Of course, for specific operations, we still have to wait until we carry out technical research before we can obtain more reliable data. If we can analyze the material base used on B2 this time, we can reduce investment in this direction and use resources Concentrate on several other types of technologies. "oh" ?This is obviously a bit different from what Ding Gaoheng had expected when he first heard the news. ?But on second thought, it is better to have a reference than nothing. The current situation is much better than initially expected, and it seems that we should not be greedy and swallow the elephant. After all, just three years ago, the aviation industry was still worried about the possibility that a domestically produced second-generation semi-fighter aircraft would not be able to enter service on time. Today, three years later, he has already begun to think about when the troops will be equipped with stealth aircraft. Its true that its a bit too far. Ding Gaoheng reflected on himself for a while and finally came to the conclusion The person who caused him to drift should still be the one pouring himself tea in front of him. ??Moreover, if you really calm down and think about it, because the starting point is too low, although you can hear news of rapid technological advancements almost every month in recent years, when it is actually implemented, it is still in a state where the third-generation domestic aircraft has not yet been put into service... Ahem Ding Gaoheng warned himself in his heart that as the person in charge of the military industry system, he could not lose his mind under any circumstances. So, he immediately switched to a more realistic topic: Speaking of which, I saw the report submitted a few days ago. Jiang Zhongs forging press will be put into production soon? The jump in thinking is a bit big. Fortunately, Chang Haonan has been following up on this matter in Jiangcheng in the past week, so his brain can still keep up: "It may not be officially put into production yet. Now the equipment has been installed and various subsystems are being tested. If there are no problems, trial production will probably start early next month. The plan is to build a batch for Factory 112 first. The J-11Bs titanium alloy bulkhead replaces the welding process of the old aircraft. "Trial production may last one to two years, because I designed a core component life detection and automatic compensation system for that forging press. The reliability of this system can only be determined after a certain amount of time and processing volume verification. " Ding Gaoheng is semi-professional in precision instruments, and his eyes suddenly lit up when he heard this: Automatic compensation is similar to that on high-end CNC machine tools... "right." Chang Haonan replied: This is the inspiration I got from my previous communication with engineers at C.B. Ferrari through their competitors technology, which can automatically correct and compensate for the mechanical geometric errors of the equipment, reducing standby time and maintenance costs. "This technology requires a lot of experience and accumulation of production data, so although the development cycle is not long, it is very complicated to debug. However, once debugged, this system can be extended to most common presses, and it will even be able to follow Like those European companies, they make more than half of the profits in the industry by selling industrial control systems and let foreigners work for us..." Especially the package agreement signed with Europe this time, which has almost eliminated all barriers to trade in computer software and hardware, and is very valuable for us to go overseas and seize the market... Soon it wont just be Europe. Ding Gaoheng picked up the tea cup, put it to his mouth and blew gently: Dont tell anyone about the internal information from the Ministry of Commerce and Trade. "After the end of the Allied Forces Operation, the United States suddenly became more enthusiastic in promoting negotiations on our accession to the WTO, and took a step back with us in several areas such as agriculture and communications. If nothing else, we will be able to complete the negotiations before October 1 this year. The matter of joining the WTO is completely finalized! (End of this chapter) Chapter 714 Chang Haonan’s progress Chapter 714 Chang Haonans progress So fast? Chang Haonan was stunned after hearing this. He had already expected that the attitude on the other side of the ocean would loosen. After all, with the setback of the Allied operation, this cabinet has basically messed up everything. Agriculture, finance, military industry, energy ??Except for the technology industry, which is still barely maintaining a 50-50 split, all other decent interest groups have basically been offended by the Donkey Party. Especially the massive cuts in military spending since the end of the Cold War have already made quite a few people dissatisfied. ? And now with the setback of military operations, this dissatisfaction has finally found a channel to vent - Let you blindly cut military expenditures. Is it okay now? ??Back when we were engaged in Operation Desert Storm, we were chopping melons and slicing vegetables. In less than ten years, the army has already degenerated to the point where it would even go wrong when attacking a small country in Southeast Europe? The result is that the Elephant Party next door has gained an unprecedented lead in the polls even though it has done nothing. Comparing one person to another will lead to death, and comparing goods to goods should be thrown away. ?Although the Mr. Bush before was not that good, compared with the current owner of the white house, he seemed not so unacceptable. Many people even began to regret not allowing the former to be re-elected in 1992. In short, in the White House, the next one or even two sessions can be strategically abandoned. It is better to start preparing for the 2008 season in advance. But Congress still has to struggle. Otherwise, I might not be able to play in the 2008 season. Now the only card the Donkey Party can play is to open the Chinese market to American companies. ??If you give away this credit, you wont have to play anymore. ?However, what surprised Chang Haonan was that the other party was so impatient. After all, there is still a year and a half left. According to the past behavior of Americans, it seems unreasonable not to use extreme pressure. From an effect point of view, the closer to the election, the better. If you act too early, everyone will probably forget about it in a year or two. Just hit it with one punch, so as not to get hit by hundreds of punches... Ding Gaoheng''s interest was so high that he couldn''t keep his lips down: We have been wrangling at the negotiation table for so long, but in the end it is more effective to fight people back on the battlefield. Although Wang Yuzhong himself doesnt know it, he owes me a big favor this time..." Joining the WTO can basically be said to be Chinas most important national policy in the entire 1990s. How to deal with the Americans specifically should have been the business of the Ministry of Foreign Trade and Economic Cooperation, but now, if not playing most of the role, the military-industrial complex has at least played a key role in closing the door. ?Of course, this matter is extremely confidential, so in the eyes of people in the business system, it is like being hit by a piece of pie falling from the sky. It is purely luck on one''s side in the black swan incident. But the superiors can obviously understand. ??I''m afraid that by the time the meeting is scheduled next year, the Science and Industry Committee will be among the top five directly affiliated agencies. I feel that the Americans did not compromise with us simply because they were desperate. Chang Haonan replied in a cautious tone: Too fast. "Although China''s accession to the WTO is also good for them, logically speaking, it is impossible to end the wrangling so quickly. Just the opening conditions obtained by different industries in our country will hardly be equal. Like this time, In order for us to make concessions in terms of opening up the agriculture and technology industries, the other side even agreed to transfer some parts suppliers to us, just like Airbus. "This should be a good thing for them...I mean, at least for Boeing, right?" Ding Gaoheng said: We have also promised to purchase a share of Boeing aircraft in the next five years, so that at least they dont have to worry about all the Chinese market being taken away by Airbus. Well...if we look at it from a rational perspective, it is indeed like this. Chang Haonan smiled: But for Americans, the terms of reciprocal exchange are basically equivalent to suffering a loss, and they should not agree to such a smooth offer. Ding Gaoheng next to him paused for a moment. ??Although as the leader of the military industry system since the 1990s, he has not had many direct dealings with Americans, he can tell that what Chang Haonan said seems to be correct even if he only hears things from other departments. In terms of negotiating terms, he is indeed quite confident. After clarifying the direction of his thoughts, he quickly thought together with Chang Haonan: So, do you think they might be out for revenge? It really saves effort to talk to smart people. very likely The latter nodded: "It''s only been a week since the Allied Forces Operation officially ended. I guess they haven''t even taken the blame yet. As for how the B2 was shot down and why the bomb deviated from the target, I believe they will investigate in the future. Come out, but certainly not now. "So, in the eyes of the Americans, the main reason we ruined their affairs is to support the euro at the most critical moment. Otherwise, before the next thing happened, they should have pushed the euro''s exchange rate below 1 "Looking at it this way, it is normal for them to want to open our market and retaliate in the trade or financial fields. After all, we are still relatively new in the field of international trade. After the market is opened, we will not be able to do business with foreign countries, especially European and American companies. Its impossible to do business without paying some tuition fees. Ding Gaoheng nodded repeatedly with a rigorous explanation, but this aspect was not within the scope of the Science and Industry Committee, so he shouldnt interfere too blatantly. Furthermore, his experiences in recent years have left him with no particularly strong will to intervene: I will mention it to the Ministry of Economic and Trade in private and ask them to be more careful. Ding Gaoheng put down the tea cup in his hand, stood up and returned to the desk: "However, the WTO has been included in it, and the level of openness will be improved sooner or later. There are hundreds of domestic industries, and we can''t **** them all according to the nanny model, so as long as we can play a protective role in the lifeline industry, the remaining Its not a bad thing to let them experience the international market environment of survival of the fittest..." This attitude coincides with Chang Haonan''s thoughts. Even if you are raising children, you have to let go one day. ?Especially for some fields that are already stagnant, throwing a catfish into it may have a positive effect. After a few more casual conversations about WTO matters, Chang Haonan was ready to get up and leave. ?He came back this time to submit his graduation thesis and complete some graduation-related procedures. ?Although most steps can be done by someone, in this era without electronic systems, it is still unrealistic to remain completely anonymous because it involves some work such as identity verification. However, just as he finished saying goodbye and wanted to leave, he was stopped by Ding Gaoheng: Wait a minute, Xiao Chang. ?Chang Haonan turned around. "During the previous meeting at Sanzuomen, Lao Fu said that you played a very important role behind the scenes in this Balkan crisis. However, it seems that this role cannot be made public in the short term and can only be made public through other means. Ill give you some compensation. Ding Gaoheng said as he bent down, pulled out a file bag from the bottom compartment of the filing cabinet next to him, and placed it on the table in front of him. Obviously it means letting him take it apart to see the surprise. ?Seeing this scene, Chang Haonan didn''t show any pretense. He sat in front of the desk again and quickly opened the file bag. There are two documents inside. Decision on reorganizing China Aviation Industry Corporation into China Aviation Industry Group and China Aviation Power Group Seeing the title of the document, Chang Haonan then remembered that the period of the Balkan Peninsula crisis happened to be a critical stage for the implementation of policies after the annual conference. The Aviation Industry Corporation of China should have been dismantled together with the other four major corporations a year ago, but it was only extended for another year due to its own reasons. Now is the time to complete the historical mission. The superiors agreed to spin off the subsidiaries of the original Aviation Industry Corporation that were involved in aviation power research and development and production according to different business scopes, and establish a new aviation power group separately. Ding Gaoheng leaned his upper body back on the chair and straightened his hair, which was already thin: "Moreover, for the Aerospace Power Group, we are conducting a pilot project on the enterprise management mechanism. Instead of vertical management by multiple ministries and commissions according to their respective functions, the business management rights will be unified into our National Defense Science, Technology and Industry Commission, and the administrative management rights will be centralized. It will be unified into a newly established National Asset Management Office for centralized management. ?At the same time as Ding Gaoheng introduced it, Chang Haonan also read the details of the document as quickly as possible. The latter felt that his heart was beating a few beats faster. This idea of ??vertical split was indeed first proposed by him, Du Yishan, and Liu Zhenxiang. But compared with the aerospace power group itself, the latter one is more important. ?Although it is only being piloted on one enterprise, this National Asset Management Office obviously has the intention of the later State-owned Assets Supervision and Administration Commission. This may be the greatest influence he has had in the country since his rebirth... It is indeed a huge surprise. ?However, its not big enough. Ding Gaoheng told him not to get too excited and look at another document. ?Chang Haonan lowered his head again and turned to the back. ??It is also a decision, but the title is blocked by the one above. ?But thats not important. Because there is only one sentence in it. After discussion by the organization and approval, Comrade Chang Haonan is now appointed as the chief planner and team member of China Aerospace Power Group from July 1, 1999. ?) ?Even though Chang Haonan had been mentally prepared before, he almost dropped the things in his hands to the ground. The chief planner himself generally does not have an administrative level. usually held concurrently by an important second-level department leader. But the value of the members of this team is indeed worth hundreds of millions of points... (End of this chapter) Chapter 715 Sorry, I just thought of it too Chapter 715 Sorry, I just thought of it too So, is this compensation satisfactory? Ding Gaoheng, who had his legs crossed, was smiling. ?Chang Haonan is still a layman after all, and he never denies this. Im so satisfied, thank you to the organization for their unconditional trust in me! Therefore, facing this rocket-like speed of promotion, he did not hide his happiness: ?At this time, it would seem too deliberate to tuck your clothes into a deep outfit. ?It is a good thing that the city is deep, but it may not necessarily be seen that the city is deep. Dont give high hats to the organization either. Ding Gaoheng waved his hand: "The trust of the organization is also gradually increasing. It is impossible to entrust important tasks just because of one or two things, or the recommendation of one or two people. Especially in your case, it is definitely an exceptional promotion, so although you have not reached the level, you are still in the middle management Sequence, the final decision to make this appointment must be made after comprehensive consideration. "Furthermore, the position given to you is that of a chief planner, which is usually not set up separately, rather than a deputy general manager in charge of a certain business. This is also considering your age and your lack of experience in directly managing a very large organization. You need to work in Torch The group needs to practice for a while. If my guess is correct, Torch Group may be subsumed under the Aviation Development Group within three years or by the end of this year or next year. Chang Haonan was also involved in the aviation industry in his last life, so he naturally knows the gold content in it: When Chief of Staff Fu said it before, I was thinking that it might take a while to cool down, but I didnt expect that it would happen so soon It can be considered as cooling down. There are still three months until I officially start my job. Ding Gaoheng said half-jokingly: Furthermore, if you fail to get your doctorate this year, this appointment will automatically become invalid At this point, the two people facing each other laughed. ??Chang Haonan''s achievements in the past two years, even if only the non-confidential parts are shown, are enough for at least dozens of Ph.D.s to be successfully graduated. As for why it is stated that the appointment was made on July 1, 1999, it is easy to understand. ?First of all, the Aerospace Power Group is still in the preparatory stage. There is currently only one preparatory leadership group, and July 1 is the official unveiling day. Second, he is a team member directly under the state-owned enterprise. He is even a central management cadre at the appointment level. It is impossible to simply give him an "agent" title and be in charge of the work like the Torch Group. So I have to wait until I officially graduate. The sudden appointment at the departmental level did not bring much change to Chang Haonan''s daily work. ?After finishing all the matters before graduation, he returned to Jiangcheng again and prepared to follow up on the trial production of the heavy-duty die forging press. The hardware installation of the die forging press body has been basically completed, but the trial production is not only about starting up the equipment, but also about producing a complete and usable product according to the process requirements. Mr. Chang, as usual, trial production usually involves building an ordinary C-shaped beam or other partition frame structure with a relatively simple shape. ?Including Chang Haonan, several leaders of the die forging press project team wore safety helmets and walked next to the forging press, which was as grand as a tall building. The speaker was Yan Yongnian, who was holding an engineering drawing in his hand: "However, when our forging press is put into trial production, there should be many leaders, including senior leaders, coming, and I heard that Airbus has also applied to send people to visit. Many of them are experts. If it is just Producing the same workpiece as other hydraulic presses will not fully reflect the power of our equipment. " ?Chang Haonan nodded to show that he understood: "So I have told Factory 112 that they will send the latest structural design results and the process parameters of the rear fuselage frame of a fighter jet, and we will conduct trial production. Of course, if the trial production process goes well, then It will soon enter the formal production stage. The second-generation improved Flanker airframe with internal number 9902/803 was designed at the beginning of the year and will be used in all subsequent improved Su-27 models produced by Factory 112 and the Komsomolsk Factory. The only exception is that Russia cannot sell models using this second-generation airframe to countries surrounding China. Compared with the first-generation improved airframe that only carried out structural reinforcement and added a pair of inner wing mounting points, it is basically equivalent to resetting the structural design of the aircraft while retaining the aerodynamic shape. Through more reasonable The weight reduction design is suitable for lighter radars such as 1493 or Beetle, and a retractable aerial refueling device and fuel supply pipeline are reserved at the nose position to support the installation of fuel liquid cooling equipment. However, the new body involves several key integrated die-cast parts, a large number of titanium fasteners and a larger proportion of composite material application area. For China, there are certain production technical barriers. Therefore, the No. 803 verification machine previously used to test the 9902/803 airframe was completely produced by Gongqingcheng, but the test data was shared by both parties. But if you want to mass-produce the fully upgraded J-11B, these difficulties must be overcome. If this is the case, the look and feel of the trial production will be much better, but there may be foreigners among the visitors, which will not be good..." Dont worry about this. While speaking, Chang Haonan had already led a group of people back from the production workshop to the nearby process research and development center, and sat down in a conference room: "Visiting the production process is just a long-distance view at the entrance of the production workshop. Let alone the control room, even the equipment itself is impossible for them to get close to. The production process cannot be deciphered by just looking at it from a distance." ??????Then there is no problem on my side. The equipment software and hardware are currently normal, and the remaining debugging work needs to wait until the car is started. " ?Yan Yongnian put down the folder in his hand. ?Chang Haonan turned his eyes to the other side: Then... Next, Professor Lin Jingtang from the forging process group will introduce the development of the titanium alloy isothermal forging forming process. The forging process team has a special position in the die forging press project team. They only joined in the middle of last year and are relatively independent in business. The focus of their research is not the die forging press equipment itself, but how to use the new equipment. Produce parts that meet process requirements. But when they were dismissed, the equipment itself was often still under construction, so their research was always suspected of being slightly out of touch with actual production, and they were not taken very seriously before they participated in the development of die forging presses. Fortunately, Chang Haonan himself has a background in numerical calculations and understands the importance of process flow calculations very well, so he added them to the team midway through the project. Alright Mr. Chang. ?Lin Jingtang nodded, then connected the laptop he brought with him to the projector and began to introduce his research results: "The metal plastic forming problem is actually a boundary value problem. For rigid viscoplastic materials, the boundary value problem can be described as: at a certain stage of the quasi-static deformation process, the geometry of the deformed body, the internal temperature distribution, The uneven state of deformation and the current material parameters, and the velocity vector is given on the velocity surface and the surface force is given on the elevation surface, then the solution to this problem is the stress that satisfies the basic equations and boundary value conditions of plastic mechanics. Solutions for field and velocity fields. "In previous research, we found that materials that satisfy the rigid viscoplasticity assumption obey the Mises yield criterion and its associated flow criterion during the molding process. In all velocity fields that satisfy the dynamic admissibility condition, the true velocity The field will always minimize the total potential energy of the deformed body." Mathematically speaking, it is equivalent to solving a functional minimum problem with volume incompressibility constraints. This is also the theoretical basis for our subsequent numerical calculations of all metal forging and forming processes. "We have already submitted a calculation application to the Institute of Computing Technology of the Academy of Sciences. Regarding the aircraft partition that Mr. Chang just mentioned, if the size is not particularly exaggerated, it is expected to take about 3-4 months to calculate the results. It should be able to make it in time for the National Day. Before, I gave you a gift for the 50th anniversary..." ?Chang Haonan listened very patiently to Lin Jingtangs introduction of his research content. It should be said that the idea is still relatively new. Especially the part that uses Makarov''s variational principle to solve the molding problem of rigid viscoplastic materials. ?However, after hearing the end, Chang Haonan still frowned slightly. The other partys solution certainly cannot be wrong. Just not clever enough. So it takes 3-4 months. Professor Lin, regarding the problem of solving the functional minimum, I have an idea. Of course, it is not guaranteed to be correct. You can try it. Chang Haonan looked at the page full of formulas on the curtain, thought for a moment, then stood up, pulled out a drawing board, and scrawled on it: In the actual calculation process, it should be difficult to find a velocity field that satisfies both the velocity boundary and the volume incompressibility condition. However, the volume incompressibility condition can be introduced into the functional formula, so that it can be transformed from a constrained functional function. is a new functional without constraints. For example, if you introduce a Lagrange multiplier into functional 27 on your PPT, you can get a new functional that is easy to solve by variation. Of course, there may be many specific volume invariance conditions. For example, introducing a penalty function should also have a similar effect, so I wont repeat it again... ?Lin Jingtangs expression was relaxed at first, and then serious. Then came the sudden enlightenment. Finally returned to ease. ?After his expression changed like a revolving lantern, he slapped his thigh suddenly and made a crisp sound: I didnt expect Mr. Chang to also conduct research on metal plastic forming... If we had known this earlier, we should have discussed it with you before entering into research and development... Hearing these words, Chang Haonan quickly waved his hand: I have no research on your topic, I just have some opinions on the mathematical topics of solving functionals and strongly nonlinear partial differential equations ?Lin Jingtang frowned and realized that things were not simple: Thatwhat you wrote. Ahem ?Chang Haonan put down the pen in his hand: I just came up with it while listening to your introduction...a little bit of insight, a little bit of advice, a bit of advice..." (End of this chapter) Chapter 716 Poaching Chapter 716: Poaching ?Although Chang Haonan said that he was just trying to attract new ideas, Lin Jingtang has been immersed in process numerical calculations for many years and basically belongs to the type that can be solved with just one click. Even if only based on the content of theoretical calculations on the current drawing board, this seemingly unremarkable new algorithm can greatly reduce the amount of calculations in the process of solving the velocity field, which happens to be the most time-consuming part of the entire calculation process. Relatively large portions. It''s a pity that Factory 112 has not sent over the specific process parameters, so the more specific calculation steps have not been started yet. For the time being, we can only test several classic volume incompressibility conditions from the perspective of theoretical model research. Universality under one problem. In addition, Mr. Chang, before the equipment is officially powered on and started, we need to separately test the working status of the hydraulic synchronous correction system... The fatigue analysis and reliability testing system we are responsible for here is currently performing open-loop testing Stroke sensing measurement system of main working hydraulic cylinder Under the command of Chang Haonan, the progress reports of each subsystem and the next work plan were summarized one by one. And in his mind, a relatively accurate and complete timetable gradually formed... To sum up, most of the work items in the cold car state have been completed, and only a synchronous correction system needs to perform a separate open-loop test. ?Chang Haonan raised his head and shifted his gaze from the notebook in front of him to the several responsible persons on both sides of the conference table: How is the power supply in the new factory? Have there been any power outages or voltage instability during the construction process? If we put it aside more than 20 years later, there would be almost no need to worry about such problems. However, in this era, we are still on the eve of a major upgrade of the power system. Although a power outage in an entire city cannot be said to be a daily occurrence, it can be regarded as a daily occurrence. Happens from time to time. Many high-end residences even have their own diesel engines. However, for extremely large equipment such as die forging presses, and surrounded by a whole new factory area in Jiangzhong, the power consumption level after operation is quite terrifying. Relying on self-prepared emergency diesel generators is a drop in the bucket, so power must be guaranteed by the local area. Just keep doing it. Yan Yongnian has been stationed in the factory about a year ago and has never left including the Spring Festival this year. Naturally, he is the most qualified to answer this question: "In the beginning, our place shared the power supply network with the neighboring Tuan County. There were still many problems at that time. However, later, Jiangcheng local government designated our area as a new industrial zone and specially approved a special power supply line. And without being affected by urban power usage planning, voltage stability and the number of power outages have been greatly improved. The last unplanned power outage here was probably in February this year. Before the Chinese New Year, the power supply line from the substation was crushed by ice. It took about 30 hours to restore. In view of the occasional loss of energy supply, we took this issue into consideration when designing. The safety locking system is in power-on release mode, so you dont have to worry too much. ?At the turn of the century, if the power grid faces the risk of overload, it will generally choose to give priority to ensuring industrial power consumption. This is completely opposite to what happened later. Hence, having a dedicated power line can basically avoid most power supply problems. This type of power outage due to force majeure is acceptable, as long as it does not occur frequently and affects production. Chang Haonan nodded slightly: "Since there is no problem with the power supply, we will tentatively schedule to carry out the first power-on test of the equipment on May 13th. If no problems are found in the self-inspection and external inspection, then we will start to warm up the hydraulic equipment on May 15th. Officially entering the device startup process, are there any questions? "No!" ?Several other people answered in unison. Thats it for todays meeting, adjourn! After the meeting, Chang Haonan found Yan Yongnian alone in the factory who was doing a routine inspection of the workshop. For Chang Haonan, the die forging press is only one of two large-scale projects that are being carried out at the same time. But for the latter, it is a career that he has been fighting for most of his life and almost missed. Yes, so his level of care is higher than that of the chief designer Chang Haonan. The two stood on the visual inspection platform on the second floor of the workshop, watching workers not far away climbing up and down the frame, installing some auxiliary equipment that was finally in place, as well as decorations that did not perform actual functions. For example, there are four huge Chinese characters for "Jiangcheng Heavy Machinery". For a treasure like the super-heavy die forging press, which has only a few machines in the world, Yan Yongnian even suggested giving it a name similar to a warship, not to mention just listing the production company. In the end, he was rejected by Chang Haonan because he was too middle-class. I didnt expect that in two years, I would be able to build this equipment from scratch... Yan Yongnian pushed the brim of his helmet with the antenna of his walkie-talkie, and said to Chang Haonan who had just walked up next to him: Its a pity... Mr. Shen didnt get to see this day. ?The design of this 75,000-ton die forging press, as well as a considerable part of the technology, are based on a 68,000-ton prestressed steel wire winding die forging press developed by Qinghua University in the late 1980s. Academician Shen Hong was the person in charge of that project at that time and was also Yan Yongnians teacher. ?Chang Haonan also made a special trip to visit the company before the die forging press project was established. In May 1998, Shen Hong passed away at the age of 92. ?At that time, we were in the most critical stage of transforming the equipment from drawings to physical objects. Therefore, Yan Yongnian, who was too busy with other tasks, did not even make it to attend the funeral of the other party. Looking at Yan Yongnian who was thinking about people after seeing things, Chang Haonan felt that the effect of simple words of comfort might be average. ??Moreover, he really hopes that this legendary academician with a primary school education who has devoted his life to China Machinery can be remembered by more people, at least more practitioners: "I propose that after this die forging press completes its first trial production, the remaining parts of the blanks can be used to erect a bust of Academician Shen in the Jiangcheng factory to commemorate the work he has done for this die forging press. efforts and contributions. Yan Yongnian suddenly turned his head to look at Chang Haonan, his eyes trembling. After a while, he nodded: "good." Then the two of them walked off the examination table one after the other. Professor Yan. After walking around the workshop for a few more times, Chang Haonan directly performed a trick: I remember that you have several doctoral students who participated in the entire numerical calculation process of our project. Are any of them graduating this year? There are two graduates this year. Yan Yongnian replied almost without thinking, obviously not realizing the seriousness of the problem: Why do you ask this suddenly? ?Chang Haonan is not prepared to conceal his purpose: After I graduate this year, I plan to set up a laboratory of my own. Of course, it will be based on the school-enterprise joint model of Beijing Hang University and Torch Group. Now there is a shortage of manpower, especially graduate tutors. Hissif you dont tell me, Ill almost forget that you havent graduated yet Now Yan Yongnian understood. ??This is to poach him... However, because of the foreshadowing just now, if he refuses now, it will seem too inappropriate. So, after hesitating for a moment, Yan Yongnian nodded: After they go back, Ill ask them to submit their resumes to Beijing Airlines... Anyway, they have experience in this project, so it shouldnt be difficult to pass... (End of this chapter) Chapter 717 special gift Chapter 717 A special gift After the completion of the PY transaction, Yan Yongnians two protgs were assigned to Chang Haonan. Of course, starting in 1996, the graduate package allocation system gradually began to be cancelled. Even before that, more and more college graduates chose to skip the allocation and work on their own because they were not satisfied with the treatment or location of the assigned job. Contact your workplace. After all, it is not more than twenty years later. In the 1990s, graduate students and even undergraduate students were still relatively popular in the job market. ?But the situation on Chang Haonan''s side is obviously different. ??Whether it is Torch Group or the school-enterprise joint laboratory jointly established with Beijing Airlines, there is a bright future that can only be seen by the blind eye. ?Especially since those two people have done projects with Chang Haonan, they can basically integrate seamlessly. Its a pity that Yan Yongnians choice of successor may have to be postponed again. By the way, Mr. Chang, there is one more thing I almost forgot. The two of them had left the workshop at this time. Yan Yongnian took off the safety helmet on his head and said: Last month, when the comrades from the Northern Vehicle Research Institute came to hand over the project to us, they said they couldnt contact you, so they gave me a souvenir and asked me to hand it over to you. Comrades from the Northern Institute have completely withdrawn from the project team? Chang Haonan also took off his helmet and work clothes, hung them in the closet with his name on them, and put on his coat again: No wonder I didnt see Lin Qingsong and the others when I came here this time. When the die forging press project was first established, because there was no money, and more importantly, there were no staff members, so under the arrangement of Ding Gaoheng, it was conducted under the Northern Vehicle Research Institute in Huaishuling for research. By the way, of course it can be said that they have trained a group of technicians in the weapons industry system. ?Lin Qingsong is one of them. ?Originally, Chang Haonan was going to promote him to the project leadership team, but the other party considered that while participating in the die forging press project, he would also be responsible for the unit''s heavy equipment research and development, so he did not agree. ? Later, with the establishment of the Equipment Industry Department, the die forging press R&D team, including the entire Jiangcheng Heavy Machine Tool Factory, had its own company, so naturally there was no need to borrow money from others. Well, most of the main forces in the weapons industry have been transferred to Tongzhou to support the 9910 project, so only a few comrades in charge of materials and files are left on our side to finish the work. Yan Yongnian and Chang Haonan walked towards the living area on the other side of the factory one after another: When I came here last time, Mr. Zhu there said that he would send a special thank you letter to our project team... Wellits all a false name ?Chang Haonan waved his hands, looking casual. ?But then the conversation changed: Speak of it, Professor Yan. If everything goes well, our die forging press will be officially delivered early next year. What are your plans after that? Yan Yongnian was stunned after hearing this. He almost dropped his left foot and his right foot: You want to poach me too? Actually, Chang Haonan did not have this idea. Just asking casually to avoid being left in the cold. ??And judging from the other partys tone, he probably wouldnt really choose to leave Qinghua University. But since others have said so, it would be a bit uncomfortable if he clarified that he did not mean it. If Professor Yan is willing, I would naturally welcome him. It just so happens that the laboratory still lacks an experienced veteran..." ?Sure enough, just like Chang Haonans guess just now, Yan Yongnian waved his hand: If I were 20 years younger, I might actually be able to agree. But now... I was already ready to retire. After I finish working on the die forging press, I will train a group of close disciples and its time to give up my position to the young people..." Yan Yongnian is not young, but he did not hold a teaching position in the first half of his career. Therefore, the number of students is much smaller than that of professors of the same age and level. ?However, the training cycle for a PhD takes at least 4-5 years. If you plan to retire, you will basically plan in advance like Du Yishan - After Chang Haonan, the latter has not accepted any new doctoral students. Firstly, I am afraid that the gap between the senior brothers will be too big, and secondly, I will not be able to teach the entire class. "Professor Yan''s closed disciples haven''t been admitted yet?" Chang Haonan asked as he followed him up the steps of the dormitory building. Yan Yongnian was shocked when he heard Chang Haonan''s question. He turned his head and looked at Chang Haonan with an expression of "Is it appropriate for you to ask this question?" The latter thought for a long time, touched his chin awkwardly, and at the same time shifted his gaze with a guilty conscience... It seems that there is indeed a person who packed up and took away the closed disciples who had been trained half an hour ago... Fortunately, the two of them also walked to Yan Yongnian''s dormitory at this time. The latter opened the door, took out something covered by a glass cover from a tin cabinet in the living room and handed it to Chang Haonan. is a tank model. Third-generation main battle tank prototype Chang Haonan is naturally familiar with this. In principle, both 99 and 96 tank prototypes can be called this. However, it is still easy to distinguish the specific model from the iconic trapezoidal main armor and the grille at the rear of the turret, as well as the design where the driver is located directly under the gun barrel. Even though he has spent his whole life studying aircraft, how could a man not like strong armor and sharp cannons? Its hard not to have heard of the 9910 prototype that participated in the 50th National Day military parade. ?For a long time at the beginning of the new century, it was also called the "Type 98" main battle tank. There is also a nameplate directly below the model. First Machinery Manufacturing Plant Obviously, this is not the kind of cultural and creative product jointly launched by a research institution and a model manufacturer, but a machine factory responsible for producing the 99 main battle tank. The workmanship is not very good, mainly because the carrying capacity is relatively large. ?Furthermore, precisely because the workmanship is not excellent, it is not confidential. "The forest engineer told me at the time that thanks to the period of experience in our project team, they were able to come up with a brand new chassis that met the design specifications of the army in time. Otherwise... I''m afraid... I''m afraid they would have to use an engineering prototype vehicle with an intermediate technical status to make up for the military parade. Already Yan Yongnian said and pointed to the model in Chang Haonan''s hand. After being reminded like this, the latter discovered that the chassis of this model was indeed thick and uncoordinated compared to the turret. When I first looked at it, I thought it was simply because the workmanship was too rough, so I didnt pay attention. But upon closer inspection, I found that this chassis even has the flavor of the 99A chassis after major changes. ?It seems that at least at the overall design level, it can be regarded as one step in place. But judging from the shape of the power compartment and turret, it still uses a 1200-horsepower engine and an early model 125mm smoothbore gun. There is a high probability that it will not be a mass-produced model, and it can still only be called the 9910 engineering prototype. ??Its just that compared to the original timeline, the distance to the final technical state is much closer. Yan Yongnian watched Chang Haonan turn it over to study the model in his hand. He could understand the man''s little hobby, so he didn''t speak again until the latter raised his head again: Speaking of Mr. Chang, with your current influence on the Science and Technology Commission, you should be invited to attend this years military parade, right? Chang Haonan is quite sure about this, otherwise he would not directly invite his parents over during the Chinese New Year. ?But its not easy to speak too fully in front of outsiders: I havent received accurate news yet, but I heard that the Science and Technology Commission will invite scientific researchers and worker representatives from the military industry... That...Mr. Chang. Hearing this answer, Yan Yongnian immediately rubbed his hands: "Although our heavy-duty die forging press cannot be directly regarded as military equipment, it can produce a lot of military equipment...and whether it was first installed in the Northern Research Institute or the current Equipment Industry Department, it is also a project under the Committee of Science and Technology... " ?His expression showed a rare hint of flattery: So you see...can I also be considered a scientific researcher in the military industry..." (End of this chapter) Chapter 718 Too much new equipment is also a worry Chapter 718 Too many new equipment is also a worry ? Yan Yongnians question is basically a straight shot "This military parade is very good. Can you let me go and see it too?" In fact, according to common sense. Its difficult. Because the term "military industry" of the Science and Technology Commission basically refers to military equipment research and development personnel. Chang Haonan was included because he was responsible for the research and development of the Taihang project. Otherwise, at this moment, thirteen of the twelve military-industrial groups would be engaged in real estate as a side business, and the scope would be a bit too large. But its not completely impossible. As Yan Yongnian said just now, the first production task of this die forging press is the J-11B body. Professor Yan, please dont worry. Chang Haonan said as he wrapped the model and put it into a bag: The invitation list for the military parade is issued in batches, and the last batch should not be confirmed until the end of August or the beginning of September, so as long as we dont cause problems when we are trial-producing gifts for National Day, the chances should be great. ?Yan Yongnians eyes lit up. At the time of the 35th anniversary military parade, he was still working in the old Ministry of Machinery Industry. Coincidentally, we are also working on a die forging press. ??Its just that we didnt produce any particularly iconic results, so we didnt even think about being invited to the ceremony. And if he waits another ten years, he will definitely have retired, and it is even less likely that he will be specially invited here. Yan Yongnian still has this kind of self-awareness. So this year is basically his only chance. at the same time. Tongzhou, Zhangjiawan. ? A convoy of more than a dozen HY4731 semi-trailers, with double flashes, slowly drove into the temporary camp that had just been set up. At the end of the queue, there were two buses following. Parade Village. At the beginning of the founding of the People''s Republic of China, since military parades were held every National Day, but each time was not large in scale, the military parade troops were basically drawn from the surrounding areas of the capital, and training was conducted in their respective camps. But later, as the frequency of military parades decreased, the scale increased accordingly, and the units to be reviewed began to be drawn from across the country. So we need a place to put all the reference personnel and equipment together for joint training. At the same time, it also gives those foreign troops a place to station themselves. ??So there were two military parade villages located around the capital. The one located in Zhangjiawan is where the vehicle formation is stationed for training. Another one for the foot formation is located in Shahe. ??The nature of the air force formation is quite special, so it still adopts the mode of dispersed training during normal times, and then moves to the vicinity of the capital during the final joint training stage. ?Under the command of the parade village manager, the escorting soldiers jumped down from the truck cab and quickly untied the cables holding the tank. At the same time, the crew members who were drawn from an armored division at the foot of Yanshan also got off the bus, found the tank with the corresponding number in groups of three, and climbed into their respective positions with unskilled movements. 18 vehicles in total. ?About one-third of them were just pulled over from the test track, so the surface of the car body is covered with a thick layer of sediment. Immediately afterwards, a slightly smaller group of people in casual clothes got off another bus. From their movements, it is easy to see that they have not received any military training and should not be reference personnel. The same groups came to the tank, but there were only two people in each group. ?One of them came to the rear of the trailer and began to give instructions to unload the truck. The other one was lying on the car body, watching the driver''s movements closely, and giving some guidance from time to time. The vehicle crew members during the test process are all employees of research institutes or manufacturers, but the military parade will definitely still require the participation of the People''s Liberation Army. Therefore, the 54 selected training cadres have only previously operated this latest model of third-generation main battle tank on a simulator. ?This is the first time I have come into contact with a real car. In fact, they even had a fourth member of the vehicle crew in the original unit. However, with the continuous development of military technology, the two third-generation tanks that will participate in the parade no longer have a second gunner (that is, a loader). . Soon, the first tank spewed out a plume of black smoke on the flatbed truck, and the low-frequency roar of the diesel engine almost resounded throughout the parade village. For some experienced veteran tank soldiers, they can tell that the diesel engine used in this tank is quite powerful just from the sound at the moment of startup. The tank soldiers sitting in the car will have a more obvious perception. ??The first driver to engage reverse gear and release the brake was immediately startled by the huge torque, and almost subconsciously stepped on the brake again. The newly designed suspension and chassis allowed the nearly 50-ton tank to stop stably on the trailer board in an instant, with almost no sign of nodding forward or backward. But the trailer below suffered. The rated load of the Type 82 tank trailer itself is 50 tons. Now as soon as the tank moves on it, the trailer suspension immediately makes an overwhelming and harsh sound. In the end, fortunately, it was unloaded without any danger. Such a big movement here has already attracted the attention of other troops being reviewed who are also stationed in the parade village. Even for most insiders, this is the first time this type of tank has appeared in front of them. The impact brought by the King of Land Warfare is difficult to match with other equipment, no matter how advanced it is. Not to mention anything else, just the tank gun, which visually measured about 6 meters in length, and the tank''s crisp starting posture are enough to show the extraordinary performance of this model. ?Especially for the crew of another tank formation originally stationed somewhere in Yanjiao Behind them, although the chassis also has six pairs of road wheels, the turret is still an 88B with a pot head shape, which instantly became unsightly... On the simulated rostrum further away, several conductors were watching the unloading process through binoculars in their hands. This should be the last batch in Zhangjiahe, right? General Li Liangxin, the commander-in-chief of the military parade, put aside the telescope in his hand and asked Yang Hong, the chief instructor of the vehicle formation next to him and the general person in charge of the Zhangjiawan Parade Village. It is the last batch of reference equipment. The latter quickly put down his telescope and replied: There are two backup vehicles of 9910 engineering vehicles at the back. Because they are still on the production line, they will not be delivered until next month. "well" ?Li Liangxin sighed, the joyful expression on his face just now has been replaced by worry: "The equipment for this military parade... is really new." He shook his head and continued with complicated emotions: "When I received the document the year before last and was transferred to the Beijing Military Region, I made a list of the planned reference equipment in advance. I found that whether on the ground or in the air, the so-called ''new'' equipment was the batch that was put into service in the early 1990s. It has been in the hands of the army for several years, and it was at the best stage of running-in and stability. At that time, I was relieved and thought that the pressure of military parade command should not be too great. " Who would have thought that in less than two years, the contents of that table, except that the rifles of the foot formation were completely unchanged, have basically been changed..." "The aircraft are new, the tanks are new, and the guided missiles are also new... Not only are they new, but many of them are prototype equipment that is in the finalization process. If something goes wrong on the day of the military parade, I''m afraid. I want to become a criminal in history..." ?Li Liangxin felt for the first time that equipment was updated too quickly, which sometimes was not necessarily a good thing. Commander-in-Chief, our aerial equipment is actually not new anymore Zheng Liangqun, the only one next to him wearing an Air Force uniform, replied half-jokingly: "Previously, comrades from the aviation industry told me that the latest improved version of Project 11, which uses a new airframe, avionics and engine, is expected to begin test flights in the middle of this year. They asked me if I could also consider joining. In Project 9910, there is also a 10-ton helicopter called Zhi-12..." "Don''t" ?Hand in the middle of his words, he was interrupted by Li Liangxin, who had already put on a mask of pain: Now these prototype equipment are causing me insomnia and hair loss every night. If two new types are introduced, they will still be the most trouble-free aerial equipment. The Mediterranean Sea above my head will probably turn into the Pacific Ocean..." (End of this chapter) Chapter 719 On parade! Chapter 719: Military Parade! Obviously, Li Liangxins current state of mind is one of pain and happiness. But the point is happiness. ?Hence, his words also triggered a burst of empathetic laughter on the podium. ?Hair loss is obviously a common problem faced by most middle-aged men. ??No matter whether you are rich or poor, you will be treated equally. We have to find some heavy-duty tow trucks. ? Yang Hong, the chief instructor of the vehicle formation, raised his telescope again and looked at the 18 tanks that had formed a line in the distance and were driving into the camp under the guidance of technical personnel: "This model weighs almost 50 tons. The largest Type 84 tank repair vehicle we have now can only tow 45 tons. If it breaks down and cannot even tow it, it will be a big trouble." ?Equipment reliability is a matter of complete materialism. It is not like members of a walking team who can overcome some minor problems. If they fail, they will fail. Furthermore, no matter how good the maintenance is, it is impossible to completely eliminate the possibility of failure. Therefore, during each detachment, there will be a series of engineering rescue vehicles and backup equipment on standby next to the moving convoy. Although except for a tank breaking down at the founding ceremony of the People''s Republic of China, there were no similar problems later. But it is always better to be prepared. Able to tow a 50-ton heavy-duty emergency vehicle... I estimate that only the engineering corps will have some engineering equipment that meets the requirements. Another officer thought for a while, then touched his chin and replied: A few years ago, when business was not banned, there were many engineering brigades working outside to build bridges and pave roads. Although they have not been allowed to do so in the past two years, the equipment purchased previously should still be there, and some residual heat can be used. The two models of third-generation tanks have directly increased the size of the Chinese Army''s main battle equipment by nearly a quarter. Corresponding to the increase in equipment combat effectiveness, the logistics support requirements have doubled. ?This is why sometimes, the combat effectiveness of troops that have just received new equipment is not as good as when they use old equipment. So...sometimes its frustrating to change clothes too quickly... Zheng Liangquns tone next to him inadvertently brought a hint of Versailles. After all, when it comes to the speed at which new equipment is put into service, the Air Force is currently unparalleled. The number of troops equipped with Su-27 or domestic J-11A has increased to 3 regiments, and although it is a second-generation and a half fighter, the number of J-8Cs that can also be considered as new-quality combat effectiveness is roughly the same. Compared with the more than 50 fighter regiments of the entire Air Force, this number is indeed not too many, but at least it can ensure that the key airspace in the east and southeast has relatively modern fighters to protect the airspace, and there will no longer be forced use of fighter jets. The J-6 versus F14 is such a heroic but helpless scene. ??More importantly, the Air Force has basically ensured that there will be no serious interruption in combat effectiveness during the replacement process The bat hunting operation and embankment building operation the year before last are the best proof. Zheng Liangqun said this, and no one can refute it. ??Although Li Liangxin was born in the army, as a commander at the military region level, he has actually jumped out of the level of a single military service and did not directly prevent harmless quarrels among his subordinates. ?As for soldiers, if there is only harmony and no sparks when we get together, it may not be a good thing. Therefore, after listening for a while, he just changed the subject calmly: Commander Zheng, what about the situation of the air formations being reviewed, especially the third-generation fighter jets being reviewed? I remember that in the past two years, they were not able to move freely across the country? Zheng Liangqun dared to open a battle in the middle of a group of army troops. He naturally understood that forging iron requires one''s own strength, and immediately replied: The candidates for the pilots of the air formation have basically been determined, and targeted formation flight training is ongoing. Only the list of student companions for the training aircraft echelon has not yet been reported, but this will not affect flight preparations. "As for the ground support issue, starting from the middle of last year, in the name of the 9910 project, in accordance with the replacement plan for the next 3-5 years, I transferred some ground support personnel from several of the top aviation divisions in the entire Air Force to Sheng Sheng. We will go to the Beijing 112 Factory to study and adapt to the new equipment in advance. Of course, the main purpose is not only for the military parade, but also to quickly form combat effectiveness in the future. One of the key points is the base over Yangcun, so both ground support equipment and personnel can completely independently ensure the normal operation of the Su-27 and J-11 aircraft being reviewed. "However, the J-10, which is referenced together with the three domestically produced J-11s, is still in a prototype state, and is even currently performing test flight missions in Yanliang. Therefore, the guarantee of these two aircraft requires comrades from the 132 Factory sent from Rongcheng. Some technical staff are here." He had barely spoken a few words when there was already someone next to him who was quick to respond and started taking notes. The military parade is indeed very important, but in the final analysis it is only a temporary task. ?Preparation for war is the eternal theme of the army in peacetime. Obviously, Zheng Liangqun was able to go from deputy division commander to commander of the military air force in less than three years. In addition to being lucky, he did have some unique things of his own. ??Just here, the parade commanders were chatting about the preparations of the air formation. Changchun Flight Academy, a thousand kilometers away. ?Three newly installed J-9 training aircraft entered the apron along the taxiway. As the hatch opened, the three student pilots and three flight instructors climbed out of the cabin. After getting off the plane, each student handed a piece of paper in his hand to the instructor behind him, and then either trotted all the way or walked back to the queue a little further away. The three instructors gathered the papers in their hands and handed them to a colonel standing opposite the queue in the academy. It was Zhang Jiujiang, an old acquaintance of Chang Haonan. Subsequently, more than a dozen instructors began to study the test papers submitted by the students on site. The students in the queue are actually not surprised by this. This "aviation experience course", which was launched somewhat suddenly, has lasted for nearly two semesters, and the aircraft model used for riding experience has also changed from the initial JJ 6, to the later JJ 6, and then to the current JJ ??9 . Each type of aircraft does not require students to fly. All they have to do is to perform specific actions according to the tower''s instructions when the instructor''s aircraft maneuvers. Usually answering a question written on a piece of paper, or giving accurate directions in a high-speed maneuvering aircraft in the air according to a description on a piece of paper. At the beginning, most people could still get a high score in Beginner''s Education 6. But on the JJ-9, which is faster and has a greater overload level, many students have already felt uncomfortable after landing or even during the flight. Especially for the dozen female students in the queue today. According to convention, they will be assigned to the transport flight profession by default, so experiencing JJJ6 and JJ9 is completely unplanned training content. For some reason, the instructors spent an extra long time studying the test papers on this day. There were several students who reacted greatly to heavy G-force flight, and their legs were already shaking a little. ?It wasnt until nearly half an hour later that the instructors who were gathered together finally dispersed again. Li Lingchao and Chang Jiayao will stay for a while, while the others will be taken back to the dormitory area and then dispersed. Free activities in the afternoon! The instructor leaves a few students alone after class, which basically means additional training. Hence, the other students looked at the two with some pity in their eyes. Including the two people who were left behind, they were also a little panicked. Instructor, I think my performance during this period...should be okay..." After most people left, Chang Jiayao cautiously tried Zhang Jiujiang. After learning that he and Chang Haonan were acquaintances, the former was no longer as restrained in private as he had been in the past. But today, Zhang Jiujiang''s expression was particularly serious. Stand at attention! Chang Jiayao immediately put away her playful smile and stood in a standard military posture with Li Lingchao next to her. The college has decided to report two comrades, Li Lingchao and Chang Jiayao, as candidates to accompany the No. 5 and No. 6 train echelons of the training aircraft for the 50th anniversary of the National Day parade respectively! (End of this chapter) Chapter 720 Mr. Chang’s influence Chapter 720 Mr. Changs influence ??The moment Zhang Jiujiang spoke with a serious face, Chang Jiayao was so nervous that it felt as if her heart was about to stop. ?This feeling of waiting for results was something she hadn''t experienced much since she entered college. ?So my mind is filled with two words Its over! ??However, just when Chang Jiayao gritted her teeth, stamped her feet and closed her eyes, and even completed her mental preparation, what she heard was not the expected news that she would need to practice more. The huge contrast made it impossible for her to realize what Zhang Jiujiang meant. It feels like I thought I had failed a test but when I checked my scores I found out that I had not. Eh? Chang Jiayao looked at Li Lingchao, who was left behind with her, in confusion. ??The latter is the squad leader of this female pilot class, but her expression at this time is also the same blank. After all, regarding the matter of student selection, before the actual results came out today, the spread was basically limited to a few college leaders. Before that, it could be said that there was no news at all among the students. It does take some time to accept. But the reaction of the two students made Zhang Jiujiang on the other side unable to deal with it ?His sullen look before was just an act. After announcing the good news, he followed the usual routine and started applauding the two girls to express his congratulations. ??As a result, the two of them acted completely out of common sense and looked at each other with no reaction at all. ?So the scene became that of him dancing in the air alone... Hey, you two? ?Zhang Jiujiang took two steps forward and waved his palms in front of Chang Jiayao and Li Lingchao: Are you overwhelmed by the surprise? It was only then that the two of them reacted. National... National Day 50th Anniversary Military Parade? Accompanying student pilots? ?With their understanding ability, they naturally quickly figured out what this was going to do. ?But the rationality makes people a little unbelievable. After all, as sophomore students, they have not even officially started flight training. Thats right. ?Zhang Jiujiang, who finally stopped playing one-man shows, nodded and replied: "In order to show the talent reserve and spirit of our People''s Air Force facing the new millennium, this military parade specially arranged a wedge of training aircraft from our academy at the end of all flight formations. Since it is a training aircraft, it is not so difficult for only our instructors to go up. Thats why the academy leaders decided to assign a pilot student to the front seat of each aircraft, choosing from the second-year and third-year students. Hearing this, Chang Jiayao suddenly understood: So the purpose of this aviation experience course that started last year is to... select students who can get on the plane and participate in the military parade together? Yes, at least at first. ?Zhang Jiujiang led the two of them outside the airport area and replied: Three-year students have been flying for a while, so their adaptability in the sky can be judged based on their flight course scores. But your second-year students are not good enough, so this course was temporarily added. "But later we discovered that allowing students in the first half of the second grade, or even the second half of the first grade to get on a plane in advance is also very beneficial to teaching. You may not be able to feel this yourself, but we feel that when it comes to flight theory teaching Its quite obvious that the hours of your aviation theory course this year are 10% less than the previous year, but the average score is nearly 5 points higher. Li Lingchao nodded in confusion. As a student, she naturally could not have such an overall perspective, and the issue she was more concerned about was not here: So, Instructor Zhang, do we need to do anything extra? As a newbie who has only experienced flying on the J-9 for a few hours, now I suddenly learned that I have to participate in such an important task as the National Day military parade. After the initial confusion and the surprise that followed, I felt more directly. It must be pressure. Zhang Jiujiang could naturally see this and immediately said with relief: Dont be too stressed. For tasks like flying a military parade formation, the dozens of hours of flight time that third grade students have more than you do make no difference at all, so our instructors will all be responsible for the flight. You have only two tasks. One is to assist the instructor in determining the formation situation, especially the readings of the formation rangefinder. Although the view from the back seat of the J-9 is quite good, it is still incomparable with that from the front seat; The cabin is responsible for taking photos, which is also the task assigned to us by the publicity department. ? ? There will be a dedicated helicopter responsible for filming and broadcasting in the ground formation, but when flying in an aerial formation, it is impossible to let a helicopter that does not belong to any formation get too close, whether for the sake of effect or safety. In this way, the broadcast perspective can only be from the ground. But in addition to the broadcast, Bayi Film Production Factory will produce a special recording version in the later stage, in which some shots shot from the air can be used. As a result, almost all formations containing two-seater aircraft have received this task. Chang Jiayao, who was walking next to her, thought of the fact that during the Chinese New Year, Chang Haonan did not directly prepare a quota for her to attend the National Day ceremony... In normal times, this might be a coincidence, but... ?Chang Jiayao felt that her mind was a little messed up. ??If Chang Haonan had known about this a long time ago... No. As a seemingly influential aircraft designer, it is normal for my brother to know in advance that there will be selections for the National Day military parade. But the other party seems to be sure that he will be chosen... certainly. This could be interpreted as confidence in the sister''s abilities. But if we look at it from the other side... ?The reason why Chang Jiayao applied for flight school was because she had been living in the shadow of her elder brother in high school, and she actually had a bit of a rebellious mentality. ??Although I have matured a lot in the past two years since I was in college, I will no longer deliberately go against my family for this awkward idea. ??But if such an opportunity was decided unofficially because of Chang Haonan... Then she would rather... ?Chang Jiayao tried to face her heart. Okay, Ill still take it. It is impossible to give up. After all, this opportunity is too rare. It is very likely that it will only happen once in a lifetime. But this answer made her feel even more painful. Jia Yao? Just when Chang Jiayao fell into extreme entanglement and self-doubt, Li Lingchao next to her gently patted her shoulder: What are you thinking about? Your face is turning red and white in turns? The former, who was already a little guilty, was immediately shocked when he was slapped like this: "ah!" ?Her overreaction shocked Li Lingchao: "What are you doing? If you don''t know, you think I want to molest you..." At this time, Chang Jiayao gradually came to her senses and realized that instructor Zhang was no longer around. Where is Instructor Zhang? Of course Im going back to the office ?Li Lingchao was a little confused: "What''s wrong with you today? You''re so distracted... Our dormitory is in front of us, and there''s no way he can follow us." Chang Jiayao quickly shook her head: Its okay, its just that I was too surprised just now and I havent recovered yet. ?This reason is very sufficient, and Li Lingchao did not continue to delve deeper: "I''m going to call my family and tell them about this. Do you want to come with me?" Chang Jiayao was stunned: Is this allowed to be said? ?Li Lingchao nodded: "I just asked specifically. After the quota is decided, there is nothing worth keeping secret. You can inform your family, but it is limited to participating in the military parade itself, and you cannot disclose more specific arrangements." "I...I''m not in a hurry. I don''t think there''s anyone at home. We''ll talk about it later in the evening." Chang Jiayao stopped, hesitated for a moment and then turned back: I have something to do in the teaching area, so I wont accompany you for now. Ill see you in the cafeteria later. ?Chang Jiayao did not lie. She did go to the teaching area. Find Zhang Jiujiangs office. Instructor Zhang Chang Jiayaos tone was a little tentative: "I...can I see the specific results of each test in my aviation experience class..." ?Zhang Jiujiang was stunned. ?This request is not uncommon, but it usually comes from students who have relatively poor grades or even failed grades and want to get a few more points. ?Those with scores above 90 points like Chang Jiayao rarely apply for this kind of application. ?However, Zhang Jiujiang is a veteran after all, and he quickly figured out the joints. ??The relationship between brother and sister Chang Haonan is something that everyone understands but has not yet said. To put it simply, Zhang Jiujiang knows that Chang Jiayao is Chang Haonans sister, and Chang Jiayao also knows that Zhang Jiujiang knows that she is Chang Haonans sister Ahem But neither of them made it clear. ?But now, it seems its time to speak out. Are you worried that the hospital has chosen you as the candidate because of Mr. Changs relationship? ?Zhang Jiujiang stood up, took out a file bag with Chang Jiayao''s name on it from the nearby filing cabinet, put it on the table, and then pushed it in front of the other party. "ah" Chang Jiayao was a little embarrassed for a moment when her intentions were directly revealed, but after a moment of hesitation, she still opened the document bag. ??While Chang Jiayao was looking through the results, Zhang Jiujiang sat back on the office chair and unscrewed the lid of the water cup: "To be honest, there must be a connection between this matter and Mr. Chang. After all, if there was no Mr. Chang, we would have directly excluded your female student team from the selection." Or... to put it more bluntly, without Mr. Chang, our college may not even have the chance to participate in the military parade..." While speaking, Chang Jiayao quickly looked at her score sheet and made sure that there was no water mark in the score, so she finally breathed a sigh of relief. At this moment, when she heard what Zhang Jiujiang said, she was so shocked that she raised her head. "ah?" ?Based on what she saw and heard during the winter vacation, she could indeed guess that Chang Haonan should have some influence in the aviation industry, otherwise she would not consider it at the informal level. But when the other party said this, she felt that she... seemed to have underestimated her brother. (End of this chapter) Chapter 721 South Asia Chapter 721 South Asia Storm ?Shocked, Chang Jiayao almost blurted out and asked about the relationship between her brother and the flight academy''s military parade. But in the end, I endured it. ??If it could be said, it would have been done long ago when the two of them met during the Chinese New Year. ?Zhang Jiujiang took a sip of water, then closed the lid of the thermos cup and looked at the transcript in Chang Jiayao''s hand: "You don''t have to belittle yourself. This course is open to all students, and the grading is based on a unified standard. Although the average score of your class is different from that of other male student classes, the scores of you and Li Lingchao are still within the same range." Those who are above the average for the whole grade meet our basic criteria for shortlisting and are not let go because of Mr. Chang. Even if you dont meet the standard, as long as its not too bad, we should still let you be shortlisted... Of course, the last sentence was said in my heart. Hearing what the other party said, Chang Jiayaos originally mixed feelings finally calmed down: Basic criteria for shortlisting She put the transcript back into the document bag and handed it back to Zhang Jiujiang with both hands: Isnt this ranked directly from high to low according to the results? Of course not The latter looked at her like she was looking at a little fool: On the premise that the results are up to standard, there are also other aspects of performance that can be used as a reference. If nothing else, at least a political review is required..." Thats right ?After figuring out the whole story, Chang Jiayao gradually returned to her previous personality: Thank you, instructor Zhang. Please be busy first. Im going back to the dormitory... Zhang Jiujiang was putting the document bag back into the filing cabinet at this time. He didn''t reply, but waved towards her with a smile. Then he walked to the window of the office and watched Chang Jiayao''s figure appear in the office building. After that, he sat back on the office chair and picked up the phone. This matter still needs to be reported... He said to himself as he dialed the number. On the other side, Chang Jiayao, who left the college administration building, also jogged back to the living area. At the military academy, personal cell phones are definitely not allowed. ?You can only make outside calls from a few designated places. Chang Jiayao''s trip to Zhang Jiujiang''s office sounds like a lot of inner drama, but in fact, when she went there, she was emo while walking, and when she returned, she wanted to rush back. In fact, it didn''t take long in total. So, at this moment, I happened to see Li Lingchao, who had just made a phone call and walked out with a smile on his face. Eh? The latter naturally saw Chang Jiayao who was going up the steps: Jia Yao, didnt you go to the teaching area? WellI had some things to do, but now Ive finished them. ??Chang Jiayao naturally couldn''t confess her thoughts to the other party, so she could only find any excuse to get through. ?Of course Li Lingchao didnt mean to get to the bottom of things: Then Ill wait for you outside, and well go to the canteen together later. ?Chang Jiayao finally did not get through her brothers phone call. Because Zhang Jiujiang could learn about Chang Haonan''s presence in Jiangcheng through special channels, Chang Jiayao could not. After the meeting at Sanzuomen, the department leader who was newly transferred to be responsible for Chang Haonans safety advised him not only not to use but also not to carry his mobile phone during work for safety and confidentiality reasons. Chang Haonan has always been very obedient in this regard. So fast? ??When Li Lingchao saw Chang Jiayao coming out, his eyes widened in shock. Although we cannot go into details about such a big matter, there is a lot to talk about if we expand it a little bit. ??If she wasn''t worried about the phone bill, I''m afraid she would still be chatting inside. Everyone at home is at work, so I havent been able to get through. ?Although he failed to tell Chang Haonan the news immediately, Chang Jiayao was obviously in a good mood: "let''s go" You feel a little weird today...are you okay? Its okay, its okay, I just suddenly remembered something happy... Is there anything more joyful than participating in the military parade? Li Lingchao, who was confused, quickly kept up with Chang Jiayao''s pace... In the following period, Chang Haonan was busy preparing for the trial production of heavy-duty die forging presses. The technicians sent by Factory 112 also arrived in Jiangcheng a few days later.?????It''s just... The scale was a bit larger than he expected. The team was even led by He Ming, the deputy chief engineer of Shengfei Group and the new assembly head of Project 11, an old acquaintance of Chang Haonan. Mr. He, you brought a lot of people this time... After some pleasantries, Chang Haonan looked at the crowds of people filing out of the two buses in front of him, and was a little worried that there might not be enough dormitories in the new factory... He Mingze replied in a half-joking tone: Its a rare opportunity to learn from Mr. Chang. But after saying this, he turned serious: The main reason is that these rear bulkheads are too critical for the new airframe, and the design is quite extreme, leaving very little room for error in the production process. So I asked each team, including the assembly workshop, We brought people here just to make sure nothing goes wrong. ?Even Chang Haonan was somewhat surprised by this level of emphasis: Wont this affect the current production of J-11AM and ASM models? "Won''t." He Ming immediately shook his head: "Since the beginning of the year, superiors have transferred about half of the manpower from the J-8C final assembly to ours. Now the personnel on the production line are allocated according to a 1:1.2 overflow. One is to prevent accidents, and the other is to provide B Prepare for capacity increase after model mass production. Is the Air Force getting tired of the old so quickly? Chang Haonan was shocked after hearing this: The J-8C has only been in mass production for two years Whats so new He Ming is not too young anymore. He didnt realize what Chang Haonan meant for a while, but he laughed out loud after thinking about it: This description is quite appropriate "But this time it''s not because of the Air Force. They placed more orders this year than last year. The main reason is that the engine supply from Liming Factory is less than half that of last year. Even if we make a bunch of shells, it won''t be enough." We can only wait for the engine to arrive, but instead prepare for the J-11B. Huh? Is there something wrong with Liming Factory? You must know that Chang Haonan is also the chief designer of Turbofan 10. Although he has basically no need to directly interface with Liming Factory since the twin-engine installation test, I have never heard of anything encountered there that would reduce production capacity. Half a big problem. Thats not the case. ?He Ming looked at Chang Haonan with a horrified expression and hurriedly rushed to the latter''s side and explained in a low voice: "I heard that at the end of last year, the Pakistan Air Force suddenly asked Factory 132 to speed up the delivery of the J-7F, and the request was made directly through upper-level channels, so the superiors directly gave us a death order, requiring priority to ensure the J-7F. production speed. Is there such a thing? Chang Haonan felt nervous. The environment of this meeting in 1999 is rather special. ? India and Pakistan are theoretically under sanctions due to their nuclear tests. The reason why it is said to be theoretical is because behind both companies there is actually a big brother who doesn''t care about sanctions. But no matter how much you dont care, generally speaking, you will be more restrained when it comes to military supplies. So, at such a juncture, the fighter jets were specially requested to speed up the delivery progress, and China actually agreed directly. There is basically only one possibility. Prepare for war. Considering that Pakistans domestic economy almost collapsed after the 1998 financial crisis, and last year the army went to Luogu with swords in hand, it is a normal idea to create a big wave of transfer conflicts... ?Chang Haonan raised his head and thought briefly. In his impression, some conflicts did break out between India and Pakistan at the turn of the century, but the scale was definitely not large, at least it would not be a nationwide war like the previous three wars. Otherwise, there wont be a particularly clear impression. ?Of course, after completely reversing the outcome of the Allied Operation, the development of this world line today can no longer completely refer to the situation in the previous life... Fortunately, in 1999, the Indian Air Force was not equipped with heavy multi-purpose fighters like the Su-30MKI. ??If he only fights a dozen Mirage 2000H and MiG-21, then as one of the actual designers of the J-7F, he is still confident in his own work. Even if it was just a product I practiced in my junior year. Mr. Chang...Mr. Chang? He Ming looked at Chang Haonan who suddenly became dazed. He didn''t say anything to disturb him at first, but the more than 100 people he brought over later had already lined up, and it was not easy to stand under the bright sun. Oh...its okay. Chang Haonan, who was relieved, waved his hand: Lets go, Ill ask the comrades in charge of the factory here to arrange accommodation for you. Its just that there are a lot of people, and some of them may sleep in bunk beds (End of this chapter) Chapter 722 dive bombing Chapter 722 Dive Bombing ?Chang Haonans prediction soon became a reality. In fact, shortly after the Allied Operations began, Pakistan sent armed personnel disguised as civilians in batches into the junction area near the Line of Control to build defensive positions and outposts. According to their plan, this was supposed to be a surprise operation to achieve established facts as quickly as possible while the attention of all foreign powers was focused on the Balkans. Just as the northern powers did in 1962. However, the suddenness of the start of the Allied operation was too sudden. Therefore, the Pakistani army was not well prepared on March 25 and had no choice but to bite the bullet and start the mission. The end of the Allied operation was even more sudden. ?No one could have imagined that the Balkan crisis would end in such a bizarre way. In other words. Pakistan''s entire plan completely collapsed. However, to some extent, the above two things are not important. Because Pakistan greatly overestimated the combat effectiveness of its army. They originally thought that the biggest problem in the plan would be to deal with the interference of foreign powers after completing the land encirclement, so they chose such a time point. But in reality, the plan stalled almost at the first step. The so-called surprise attack did not achieve suddenness at all. After being discovered, it turned into a confrontation. At first, the Pakistani army, which had a geographical advantage, was able to gain an advantage. ?But soon, the Indian army, which recovered, gradually began to use heavy equipment, including tanks and artillery, to fight back. The situation of the Pakistani armed forces took a turn for the worse. Normally, at this point, we should consider how to end it with dignity. but. At first, they had been planning this plan for more than half a year. Secondly, the new leader who just raised his sword and went to Luo also needs some victories, at least publicity victories to increase his prestige. ?So we definitely cant just get out of here in despair. Even if we have to withdraw eventually, we have to do something before withdrawing. Hence, the escalation of the conflict is inevitable. Early morning. Siachen Glacier, western foothills, Saltolo Mountain. ?Two Qiang-5IIIs from the 16th "Panther" Squadron were traveling northward at high speed in the ravine between the two ridges, with a total of 6 mk82 aerial bombs hung on the wings and under the fuselage of each aircraft. Compared with a normal two-plane formation, the distance between the two planes is quite far, and even when making some large-angle turns, the leading plane will briefly leave the sight of the following plane. And another unusual thing is. The leader of this formation is the one at the back. At this time, the lead pilot, Captain Waqas Aslam, was concentrating on scanning the mountains on both sides, while looking down from time to time to check the flight route map placed in the transparent pocket on his thigh. In the past period of time, the heavy artillery fire deployed by the Indian army has carried out low-density but continuous harassing shelling on several forward strongholds. However, it is almost impossible for Pakistan to follow the ridge controlled by its own side in the exchange of fire. Artillery of the same level was transported across the Line of Control, and the 120mm mortars carried on horseback were completely incapable of fighting back because their range was too short. ?This caused the Pakistani ground forces, which originally had an altitude advantage of about one kilometer, to suffer losses in the artillery battle. Even the advantageous combat loss ratio achieved in the past few days was gradually reduced. To solve this problem once and for all, the Air Staff formulated a plan to use attack aircraft to attack enemy artillery positions. ??The Pakistani observation post, which is at a relatively commanding height, has actually observed the location of the opponent''s fire launch, but it has remained silent because it has no countermeasures. Today, their counterattack is coming soon. Since the opponent''s position is deployed on a reverse slope, the success rate of bombing directly over the ridge to the east is basically negligible. Moreover, behind the Siachen Glacier not far away is Huaxia. If the bomb is thrown over the boundary, there will be trouble. Big. Therefore, the attack route can only be along the valley bottom between the glaciers, around the ridge, and dropping bombs from the opposite direction. This is a high-risk plan, not only because of the possible anti-aircraft weapons of the opponent, but more importantly, using two attack aircraft that lack terrain avoidance and tracking capabilities to fly long distances and low altitudes will itself test the pilot''s ability. ?Aslam will inform his wingman flying about 2.5 kilometers ahead about the terrain ahead every few seconds. According to the plan, after approaching the target, the wingman will launch the attack first, and he will supplement it by deciding the subsequent actions based on the results of the first round of bomb drops. Soon Aslam saw an iconic C-shaped stone circle on the hillside on the right in front, which is one of the most important landmarks in route planning. Panther 2, now slow down, climb to 450 meters, turn 180 to the left at the next mountain pass, and then enter the attack course. He gave orders over the radio to the wingman who was disappearing and appearing in front of him. In this mountainous area with the most complex environment on earth, the signal stability and accuracy of the satellite positioning system are unsatisfactory, so elite pilots like the captain are still required to perform some basic skills. The 450 meters here are obviously the height above the ground displayed by the radio altimeter, not the absolute altitude. Panther 2 has been received and is climbing. The bomb safety has been turned on. ??The wingman''s clear answer came over the radio. Although it is said that they are flying "between" the ridges, the height of the two planes is actually slightly higher than the ridge line. It can be regarded as a compromise between flight safety, radio range and concealment. Attention, there may be portable anti-aircraft missiles deployed on the mountains on both sides. Aslam reminded again, and then added: There are also anti-aircraft guns. With the end of the Allied operations, the fact that the most advanced B2 bomber was shot down by anti-aircraft guns half a century ago has almost spread throughout the world, and has even caused many countries to re-examine this traditional and ancient weapon. This is especially true for attack aircraft pilots like them who work hard at low altitudes all day long. In fact, the only fighter jets of the Indian Air Force that can use medium-range missiles, the Mirage 2000H and the MiG-29A, do not have particularly reliable downward vision capabilities. Therefore, the threats that need to be focused on come from below - flying at low altitude in such ghost terrain, in case of an emergency After you get through a mountain pass and find several anti-aircraft guns in front of you, even if the gods come, they won''t be able to save you. Fortunately, after a deft turn, Panther 2 did not encounter what the captain was most worried about. ?This made Aslam relax a little, and then continued to call: Tail Blade Squadron, this is Black Panther One, please report your location. There was only some noise coming from the radio, but there was no answer. He called again, but still got no response. For such an important bombing, it is certainly impossible for the Air Force to send out only two lonely Q-5s. The 14th "Tail Blade" Squadron is the friendly force used to **** them in the plan. ?This squadron switched from the ancient J-6 to the latest model J-7F1 fighter about a year ago. To be honest, to this day, it is difficult for Aslam to convince himself that that thing is an improved version of the MiG-21. But all in all, the performance is good. ??If you do not take into account the insufficient range and bomb load, in terms of air combat performance alone, it is even slightly better than the F16A/B of the 9th Squadron that cannot use medium-range bombs. In fact, this model is even the only aircraft of the Pakistan Air Force that can use over-the-horizon weapons. It''s just that the performance is good, but now I can''t contact anyone at all, and it seems that I can''t count on it. Boss, didnt they just lose track of you? ??The wingman pilot, who was descending again and preparing to enter the attack route, joked: It seems like we havent heard their voices since we entered the mountainous area. Fighter pilots probably rarely practice drilling in ravines like us, so its normal that they cant keep up. Among pilots who are inherently superior to others, fighter pilots are definitely superior to others. There are not many opportunities to openly complain like this. But Aslam immediately denied it: "When the 14th Squadron received new equipment last year, Lieutenant Colonel Sami was also transferred there. According to the plan, he is the leader of the tail blade today. There is no way he can''t keep up with us. It should be just because the signal in the mountainous area is blocked. " ?This explanation is a reassurance for the wingman pilots. If thats the case, Ill be relieved Aslam wanted to say something else, but after he stopped talking for a long time, he still held it back: Pay attention to control the route and dont miss the target. In fact, what he wanted to say was that although Lieutenant Colonel Mohammed Sami had superb flying skills and fruitful results, there had been rumors within the Air Force that he liked to use friendly forces or even his own wingmen as bait, while he hid in the dark and was ready at any time. sneak attack. ??The authenticity of this rumor is difficult to verify, but the known fact is that pilots who go on missions with lieutenant colonels do have a higher loss ratio. Logically speaking, this trait should not be suitable for **** missions. But the Air Force really cannot find many fighter pilots who can follow the attack aircraft pilots into the ravine. ??Its just that saying this now would only distract the wingman who was preparing to drop the bomb, so the captain didnt speak in the end. Panther 1, I saw the target position and am preparing to drop the bomb! The wingman pilot''s breathing suddenly became heavy. While reporting on the radio, he had also turned the weapon selection **** from "LOCKED" to "BOMB", and then selected "ALL" next to it. As an aircraft designed to drop hydrogen bombs on the Great Plains, the Q-5''s sights are not suitable for this straight-forward method of dropping bombs, and there are no fancy laser aiming pods or TV cameras. The choice of bombing point can only be based on the experience of the pilot. Fortunately, in order to carry out this awkward mission, the ground crew specially replaced each MK82 bomb with a deceleration device called a "snake eye" before takeoff. Basically, there is no need to consider the lead time, as long as the bomb is dropped directly above the target. Thats it. ?At a distance of less than 2 kilometers from the target, the wingman pilot pulled up the nose of the aircraft and prepared to enter the final dive. ? It was at this stage that Aslam, who was following behind, saw a white plume rising from the side ridge and pounced on Black Panther 2, which was adjusting its attitude. Be careful, theres a Sam 7 shooting at you! ??The captain quickly reminded. The poor rear view of the Q5 makes it impossible for the wingman pilot to directly see the situation below, and it is also too late to make a roll at the moment - which is almost equivalent to giving up the attack. Therefore, he suppressed his fear and held on for one more second. After dropping all six bombs, he quickly leveled the plane, turned off the afterburner, pressed the jamming bomb launch button, and fired three sets of infrared decoys in succession. This action successfully deceived the already shaky portable missile, but the wingman pilot''s bomb-dropping action was inevitably deformed under the high pressure. He paid special attention in the rearview mirror and found that although the bomb seemed to have hit the predetermined location , but there was no sign of a suicide bombing. For an artillery position, this basically means that the attack failed. Black Panther One, I may have missed the target and need to add additional attacks! The voice on the radio sounded a little regretful. ?However, Aslam, who was following behind, could clearly see that the six bombs accurately covered almost half of the hillside, and even set off a small avalanche. Could it be that The captain had a very bad guess in his mind. Normally, this kind of position built on such an important terrain would store at least half a level of artillery shells, but now it has no intention of exploding at all. Either the shells have been fired, or... This position is fake. At the moment when he thought about this joint, the RWR''s harsh warning sound suddenly sounded in the cockpit of the aircraft. At the same time, out of the corner of his eye, he could see two white trails heading towards them at high speed behind the higher glacier in the distance. Attention, enemy aircraft! Aslam reminded loudly. (End of this chapter) Chapter 723 No martial ethics, sneak attack on Phantom 2000 Chapter 723: Not talking about martial ethics, sneak attack on Phantom 2000 While shouting a reminder to his wingmen, Aslam ignored the bombing mission and directly adjusted the weapon selection button to "EMER" (emergency release), then pulled the trigger and threw all the bombs together with the auxiliary fuel tanks. It entered the valley, and then quickly entered the subduction. In an instant, the snow-covered mountains outside the cabin rushed towards him like a high wall, and continued to recede from the corner of his vision. The Qiang 5III does not have the relatively reliable low-altitude automatic navigation capability of the MiG-27 or Mirage 2000H. Although it has a radio altimeter that can be used to avoid collisions, the pilot still has to break the control stick himself. ??In this kind of valley terrain, if you wait until the thing sounds the beep, you will basically be dead. ?However, he had to take this risk. ?The two menacing planes suddenly emerged from a distance and had obviously been ambush nearby for quite some time. ??It is very possible that as soon as our plane took off from the airport, there were secret agents lurking around and reported the news to the other side. ??The position that was blown up just now was obviously a fake position that was disguised. In other words, its a trap. Facing this kind of enemy who is armed with medium-range bombs and is well prepared, delaying time to wait for support or waiting for an opportunity to escape is obviously more realistic than climbing up and using an attack aircraft to fight other fighters head-on. Although the Qiang 5III has achieved many "shootdowns" in simulated air combat confrontations, these are more of a reflection of the gap in pilot capabilities, not the performance of the aircraft. The old instructor of the U.S. military school can shot down the F15 of Cainiao''s F15 with the T45 trainer, but this does not mean that the former can confront the latter on the battlefield. Fortunately, for most radars in this era, the thousands of kilometers of mountains at the junction of the East Asian continent and the South Asian subcontinent are definitely a nightmare application scenario. As long as you dare to fly to a low enough altitude, you can avoid it. Radar lock. ?Of course, this process will inevitably lose some energy, resulting in a huge disadvantage in the subsequent battle within visual range. ?But you have to survive now and then think about the long term. Sure enough, the RWR warning sound in the captain''s ears quickly calmed down. Panther Two, Black Panther Two, how are you doing? Pay attention to lowering the altitude! He tried to check on his wingman. But there was no response. Old aircraft naturally cannot have any satellite communication capabilities, and ordinary radios are indeed very unstable in this kind of terrain. Whether they can be connected depends entirely on their appearance. ?Of course, it is also possible that it has been shot down. After calling twice more, Aslam began to feel a little panicked. In the valley, he couldn''t see the two planes on the opposite side. Also because in the valley, he couldn''t turn, so he could only fly forward with his head down. It is very likely that it will suddenly rush into the opposite face. Just when he was already thinking about whether he could survive in the ice and snow after parachuting, a steady voice suddenly came from the radio: Black Panther One, can you hear me? is in Urdu. The radio stations in the top 5 only have simple frequency hopping encryption capabilities, poor frequency accuracy, and are mature shelf products in the West. ?The other party doesnt even need any electronic warfare. As long as the frequency band is adjusted to a nearby location, some conversations can be vaguely heard. Although the likelihood of this being such a coincidence is low, it cannot be ruled out. Hence, communicating in English is obviously not a good thing in this case. Tail Blade No. 1, I am in the valley on the north side of the target, surrounded by... Aslam struggled to find some iconic feature in the receding terrain, but was interrupted mid-sentence. I know your place. Sammy''s voice on the radio was also a bit blurry. It seemed that the blocking effect of the mountains was beginning to appear again. Fortunately, before the voice completely disappeared, the other party still told the whole plan: There will be a mountain pass about 5 kilometers in front of you. Turn right out of it, and then fly east. My wingman and I are behind the second-highest mountain. You draw the enemy over and we will deal with it. Can you see where my wingman is? Aslam''s call was only met with an extremely vague squeaking sound. It was obvious that the other party heard the question, but the answer given could not be fully conveyed. ? He took a deep breath and decided to forget about his wingman for the time being and save his own life first. The mountain pass ahead ?Aslam quickly saw the place where Sami told him to turn. ?The moment he flew out of the mountain pass, he saw two white trails on his upper left. Evidently they were the two Indian fighter jets that had been ambushed before. "grass" ??He secretly cursed the opponent for his lack of integrity, and then, regardless of the threat of infrared bombs, he quickly activated the afterburner and accelerated towards the back of the mountain the opponent mentioned. Obviously, the rumors within the Air Force are true. Sammy really likes to let his teammates serve as bait for him, and then he sneaks up from behind. Then he has to act like he is the savior. But the key is that others cant refute it yet The nervous Aslam had to look back almost every two seconds to confirm the position of the two enemy planes. When he turned back for the third time, two white trails had turned towards him, apparently seeing the Q-5 heading into the mountain. RWR also reminded him that there was an X-band radar behind him, and it was judged to be a legal RDI type, but it has not locked on it yet. . It is the Mirage 2000H. ?This made the frightened captain relax a little. The performance of the RDI radar is much better than that of the N019 on the MiG-29, but both are basically blind when facing low-altitude targets drilling into mountains. Once it flies within visual range, the combination of the latter''s R73, OEPS-29 photoelectric sighting system and helmet sight is very deadly. Not to mention the possibility of a unique infrared-guided mid-range missile like the R27T. In comparison, the threat of Magic 1/2 is simply negligible. The slightly weak acceleration of the Mirage 2000 gave the Captain a chance. ??Before he broke out of the valley and got behind the peak Sami designated, one of the enemy planes reluctantly fired a missile. ?But of course the target was lost. But Aslam himself is also facing a lot of trouble. On the other side of the mountain is a relatively flat plateau, and there is no longer a complicated terrain for him to move around. ??The captain looked back, but did not find Sami who said he was ambushing him. He panicked instantly. ??What would it be like if the two planes from the opposite side catch up? So I subconsciously wanted to continue diving. Climb, dont dive, Im behind you near the base of the mountain. Aslam felt that his blood pressure was high and replied breathlessly: To put it lightly, its not you who is being chased by two planes? ? Even so, he still followed the other party''s request and began to slowly increase the height. ??When the pilots of the two Mirage 2000s came out of the mountain pass and saw the Q-5 like the Loach again, the radar showed that the distance between the two sides was 6 kilometers. An awkward distance that is too far for combat rounds, but a little too close for radar rounds. So the captain decided to wait a little longer. ?At the current speed, it only takes about a minute to catch up to the no-escape zone of Magic 2. If it is shot down successfully, then today''s strategy is to achieve a complete victory. Replacing two attack aircraft with a real howitzer and a few other decoys, even if they are old-fashioned attack aircraft produced more than ten years ago, is still a good profit. However, when people focus on the front, they often forget other situations around them. The mantis stalks the cicada, followed by the oriole. The two J-7Fs of the Taidao Squadron had also quietly touched the lower and rear areas of the two Mirage 2000s. The most easily overlooked direction for average pilots You have to turn your head while doing a roll to see it. In fact, at that distance, looking up and searching again, the target can actually be locked. ?However, activating the radar will inevitably cause a RWR alarm. At that time, it will be nothing more than a 2-on-2 air battle with a position advantage at the beginning but an energy disadvantage. Sammys personality still likes to deal with opponents in a sneaky way. When the two sides were close to a distance of about three kilometers, he and his wingman pulled the triggers almost at the same time. Two Thunderbolt 5Cs ignited from under the wings, dragging long black smoke towards the target. This is what Sami is most dissatisfied with about this plane. There is no clear distinction between smoke propellant and smokeless propellant in terms of performance, but it is indeed more deadly for sneak attacks. In fact, according to his idea, the shooting distance should have been closer. But if we wait any longer, the powerful 5-wing aircraft of the Panther Squadron in front may not be able to return. The second-generation infrared combat bombs such as Thunderbolt 5 naturally have no locking, so even though the two aircraft were deliberately separated by some distance, the two missiles still rushed to the target behind at the same time. Mirage 2000H was hit in the engine without dodge. It immediately lost all power and most of the left wing, and immediately entered a spiral downward. The second missile, launched from a slightly farther distance, arrived shortly after and almost hit the wreckage of the plane, without even giving the pilot a chance to eject. In an instant, switch between offense and defense! At this time, the lead aircraft of the Indian Army was just about to launch a missile, but found that the wingman behind it exploded into fireworks. He was so frightened that he quickly threw away all three auxiliary fuel tanks, rolled to the right and entered a dive, and turned off the aircraft''s afterburner - this This will make it easier for the infrared signal from the tail nozzle to be hidden in the decoy bomb. Slow down, turn on the radar, and use medium-range bullets to force him to use afterburner! The tail blade commander made a tight circle at a speed exceeding the speed of sound. At this time, he was basically at the same height as the target Mirage 2000. But the opponent has swooped down after all, so his speed is faster now. It''s just slowing down. He asked his wingman to use the radar because he was worried that the combat bombs might accidentally injure him. Two versus one, on the premise that the gap between the performance of the aircraft and the level of the pilot is not very big, the result is actually already determined. In the end, after using two Thunderbolt 11s to lure the opponent out of energy, Sami launched the last Thunderbolt 5C he carried, leaving the slow leader aircraft in the mountains on the west side of the Siachen Glacier. between. ?At this time, Aslam turned on the radio again: Captain Tai Dao, did you see my wingman just now? Although he asked this question, he actually had some bad premonitions. Sami was looking back at the falling umbrella flowers at this time. He hesitated several times whether to go back and kill them all, but after thinking for a while, he decided not to violate the agreement between the pilots. After all, this is just a limited conflict near the contact line, so some leeway must be left. Saw it. He controlled the plane to restart its climb and headed northwest to prepare for return: After being locked by the radar on the opposite side, I probably panicked and didnt pay attention to the terrain while descending, and crashed into a ridge. ?Aslam let out a scolding sound of annoyance. Todays experience was not a good one for him. ??Although exchanging one Strong 5 for two Mirage 2000s is definitely a big profit, this has nothing to do with his squadron, it is entirely Sammy''s limelight. Can you take me to the place where the plane crashed? Its better not to. Sammy refused: If the other side discovers that two planes are missing, they are likely to take off more fighter planes to retaliate. It will be difficult for us to fight against more targets, and the fuel is not enough, so we have to prepare to return. ?His reasons are very good. Although Aslam is not willing to give in, he can only agree: Yes! Get ready to return! (End of this chapter) Chapter 724 The sky in South Asia turned into a mess Chapter 724 The sky in South Asia turned into a mess After climbing back to high altitude, Aslam did a little mental calculation of his fuel level. The Qiang 5 is not an aircraft known for its range, especially in order to avoid the pursuit of two Mirage 2000Hs and create opportunities for the two J-7Fs, it also used far more afterburners than planned. Fortunately, the bombing target is not far from the airport, so the calculation result is that if we maintain a steady flight at economical speed from now on, we can still fly back easily. ?This made the captain''s extremely tense mood finally relax a little. ?So he prepared to talk about other topics to divert his attention from the grief of losing his wingman: By the way, Captain Tai Dao. Aslam asked: Counting these two goals today, have you already achieved 10 results? As a general rule, a pilot who shoots down five targets is considered an ace, and a pilot who shoots down 10 targets is considered a double ace. No, just 9. I think you will definitely have a chance. ?Aslams words were at least 90% from his heart. After all, although the other party used him as bait, he still saved his life anyway: By then, you should be the only double ace in the world. "Yeah, I haven''t thought about it that much, and there are also a few good players in the Kingdom of David who have achieved great success, so it''s hard to say." ?Sami seemed to be calm and didn''t care, but he was able to give his number of kills without thinking, and he knew the situation in West Asia very well. He obviously had always had thoughts. Its just that this era is no different than World War II, with large melees involving hundreds or even thousands of aircraft frequently occurring. ?Whether you can get the 10th result depends largely on luck. Haha...the results of your nine battles are all confirmed by clear evidence. The ones from the Kingdom of David...are more suspicious." Aslam replied in a strange tone: And they are much older than you, so the chance of catching up with you is very small... Thats true. Sammys answer this time was not polite. Lieutenant Colonel. ?Just as the two lead pilots were joking with each other, the J-7F wingman who landed a few kilometers later suddenly reported: My RWR shows an X-band signal source at six oclock. Although they are close to the line of control at this time, they still cannot take it lightly. This wingman was specially placed at the back to act as a rear breaker and radar prompt. After all, none of the three light aircraft have sufficient fuel, and there is no aerial refueling. Therefore, they can only fly at subsonic speeds at an altitude of about 7-8 kilometers. Such a target is the perfect target for both anti-aircraft missiles and fighter jets. After a few seconds, the wingman added: The signal source is very strong. It is speculated that there should be more than one. RWR did not give a judgment on the radar model, but judging from the frequency, it looks a bit like MiG-29. The J-7F''s RWR performance is average and cannot provide particularly precise analysis accuracy. Therefore, it will identify a group of closely spaced radar signals as one super-strong signal source. This piece of information immediately made Aslam a little nervous again. ??If we have to say what advantages the R27 missile has, it would probably be its barely passable range, and the fact that the infrared guidance model can carry out sneak attacks silently throughout the entire process. Fortunately, although the radar warning receiver does not have ranging capabilities, considering that the two previous aircraft have not detected radar signals, it means that the other aircraft should still be on the edge of detection. According to his experience, about 60-70 kilometers. You should speed up and follow us first. I have just notified the base. They said that the nearest Griffin squadron has been sent to take off to pick us up. Sammys tone also became serious again. But the F16 of the 9th Squadron does not have beyond-visual-range combat capability? The voice of the wingman pilot was trembling. The 14th Squadron had briefly been equipped with the F16, so the pilots were very familiar with its performance. ?Pakistan Air Force once sought to upgrade its early-model F16A/B, but soon lost this possibility when the United States broke the contract in the second phase of the Peace Arch plan. So in the second half of the 1990s, especially after the J-7F, which has a true beyond-visual-range combat capability, entered service, those 40 wonderful-looking aircraft basically took advantage of their range and bomb load to carry out ground attacks. The bombing mission went off. There is no way they are the closest. Other planes in our squadron are also taking off, but it will take a while to catch up. The lieutenant colonels reply did not reveal much emotion: Looking on the bright side, at least it can scare the other party. ?Of course, this statement is just to comfort his subordinates. ??If the Pakistan Air Force has both A and C models of F16, then there may be a chance to be more powerful than the other. But the Indian army is not a fool after all. Even if the model cannot be distinguished at first, after discovering that your radar signal is APG66, you will realize that you are facing a group of soft persimmons. So, if you really want to push back the Indian army, you still have to rely on the 5th and 14th squadrons. Thanks to the high-intensity delivery in the past six months, the Pakistan Air Force has finally assembled two squadrons with a total of 48 J-7Fs. Although the scale is still too small compared to the 48 Mirage 2000s (originally 50, but two were lost just now) and 60 MiG-29s on the opposite side, it does not have to face the west and north sides at the same time like the latter. There are two directions, so it does not suffer in small and medium-sized conflicts. At this moment, a somewhat urgent voice came from the radio of the three people: "Tail Blade Team, Black Panther Team, there are 4 groups behind you, with a total of at least 16 targets approaching. Hurry up and speed up to get rid of them. Repeat, speed up and get rid of them. The 5th Squadron has also taken off and is flying to your side. Its over. But were low on fuel Aslam was still a little confused for a moment. Today''s plan was originally just to blow up an artillery position, but in just over half an hour it developed into an aerial confrontation involving dozens of aircraft. But Sami next to him had already turned on the afterburner in accordance with the requirements of the base, and flew away with a long tail flame: Dont worry about the fuel. Find another airport in Punjab to land. Besides, your speed cant keep up with ours. Lower your altitude quickly! ?One of the key points of becoming an ace in air combat is to survive long enough, so the lieutenant colonel never gets too hot-headed when he should be timid. ?At this time, Aslam''s Qiang 5III had already dived to a low altitude, and the wingman who had already begun to accelerate gradually caught up: Squadron Commander, the distance between the base and us is much farther than the radar range. How do you know the specific situation behind us? It may be that new radars have been deployed near the contact line, I dont know for sure. Sami said this, but subconsciously glanced back to the northeast, then changed the topic and said with a bit of joy: I think our situation is not as bad as we thought He naturally knew some inside information, but it was impossible to tell his wingman over the radio. ?After the last cooperation to shoot down the MiG-25, a new liaison mechanism was reached between the two air forces. At first, this mechanism only existed at the level of the Air Force Staff, but was quickly decentralized to the level of the Theater Air Force Command. The emergency air situation this time apparently came from a plateau radar station in a large northern country. Under normal circumstances, no matter how powerful the ground radar is, it will still be affected by the curvature of the earth in terms of target surveillance. Therefore, those very large ground radars are generally used for anti-missile purposes. But thanks to the special terrain nearby, the sky-defying radar set at an altitude of 5,374 meters is like an early warning aircraft that will never land. As soon as it is turned on, it can control almost half of the South Asian subcontinent''s airspace above medium altitudes. information. Since its completion, this thing has been regarded as a thorn in the side of the Indian army. The reconnaissance of the MiG-25R in the past was largely to obtain terrain information near the radar station and prepare for possible anti-radiation operations. ?Just like today, the Indian army''s planes were probably discovered as soon as they took off, but it took some time for the news to be relayed to him several times. If you calculate it this way, the response speed of the Chinese Air Force should be much faster than that of our own side... So he just said that the situation might not be that bad. As if to confirm the lieutenant colonel''s thoughts, not long after he finished speaking, RWR detected two, or rather two groups of X-band signals coming from the northeast. The identification result displayed on the multi-function display is type 1472. At present, only the J-8C is equipped with this type of radar. Squadron leader, this is... The wingman was unaware of all the twists and turns behind him, so he was completely confused about the situation in front of him. If he is attacked from both sides, he can basically start summing up his flying career. But judging from past experience, the opponent''s air force has never approached from that direction. Dont panic, we are friendly forces. The lieutenant colonel replied vaguely: Slow down the speed a little and see if the targets behind you will take the bait. As he spoke, he had already eased off the accelerator a little. ? Just now it was a fatal situation in which he had to fight more with less, so his choice was of course to jump in directly, but now the water has been completely muddied, and he still has two medium-range bullets in his hand, so there may not be a chance to steal the chicken. (End of this chapter) Chapter 725 Please explain to me, what is a surprise? Chapter 725: Please explain to me, what is a surprise? ?Slightly far away from the two Pakistan Air Force J-7Fs, a four-plane Mirage 2000H formation from the 7th Squadron was pursuing a high-speed pursuit almost along the border. Hence, it was also the first Indian aircraft out of a total of 4 groups of 16 to sense radar illumination in the forward direction. The 1472A is a "new" radar that has only been in service for three years. Although its performance is not new, its lifespan is very new. The reason why it can be recognized by the RWR on the J-7F is because it is also a product of the 14th Institute of Electrical Engineering. My family naturally knows my family, and the target of the sale is a quasi-ally who is unlikely to pose a threat in the short term, so I didn''t delete it. But for other similar types of equipment on the market, the most they can detect is that it is an X-band radar, but they are definitely not familiar with the signal characteristics. Therefore, for the Indian aircraft speeding up in pursuit, they can only perceive two sets of unknown signals from the side. Squadron Captain, he should be sent by China to observe the situation. The pilot of Wingman No. 4 said on the radio. Siachen Glacier originally belongs to the junction area of ??the three countries. Now two of them have become a pot of porridge. Although the third one has not been affected yet, it is normal to come and take a look. "Of course I know this, but why did they come so fast this time?" ?Squadron leader Colonel Sumit Prayans voice was still a little sullen and unwilling: The two Mirage 2000Hs that were shot down just now were from the 7th Squadron. ?Hence, he was eager for revenge and originally planned to take a shortcut from China, but the timely appearance of several Chinese fighter jets forced him to change his plan. Maybeits because of their radar station? ??The wingman pilot who was obviously a novice just now guessed: I remember when I was in flight school, the teacher told us that the radar above the snow line could capture the reflected signal almost as soon as we took off and climbed. ?This obviously scripted answer almost made Prayan laugh: Your teacher is right, but that radar has been there thirty years ago. However, until this time, their aircraft response speed had never exceeded two hours. So, either they have received the tip-off in advance and have been waiting for us, or they have deployed a new airport nearby so that they can arrive nearby immediately after taking off. ??Colonel speculated. In fact, his guess was very accurate. Prior to this, although China had built several military airports on the plateau, it had almost never deployed fighter jets on a regular basis. Only in a few cases did it send out individual models and ground crews for adaptive training. Because although the aircraft can operate normally at an altitude of tens of thousands of meters, the impact on the surrounding environment is relatively high when it is started. For the Chinese Air Force, which in the past mainly relied on imported and imitation aircraft as its main force, this problem is difficult to overcome. After all, few other countries have such needs. However, one of Chang Haonan''s important tasks when improving the design of the turbojet 14A is to improve the engine''s startup success rate in low-oxygen environments. Even during the bat hunting operation two years ago, two J-8Cs from the 1st Air Division tried to make a transition at a high-altitude airport, verifying the possibility of the new type of fighter aircraft operating at a high-altitude airport. Then, after more than a year of preparations, China began trying to deploy fighter jets for a long time at an airport in Geji, ALD District a few months ago to make up for the long-term air defense loopholes in the southwest region. ?The ones that took off today to respond to this emergency air situation were four of the first batch of eight J-8Cs dispatched for testing. In fact, according to the aviation team leader''s opinion, it would be best to take off as a group to test the training results during this period. However, the plateau environment tests not only the equipment but also the human body. It is difficult for the ground crews who have just been transferred from the mainland to work continuously. Therefore, each two groups of ground crews pair up with one aircraft to ensure the dispatch speed. It is also due to this that although the number dispatched is only one-quarter of the total number of Indian aircraft, it now occupies an excellent launching position. Thenwhat should we do now? The voice of the pilot of Unit 4 was slightly timid. ??Although the RWR has not yet issued a locking prompt, the feeling of being illuminated by several airborne radars is obviously not good. Lets fly along the national border first. We didnt receive permission to cross the border to the north this time. If we are shot down over there, no one will be responsible for us. ?Although he was very annoyed when his plan was blocked, Prayan could not think of any better solution for the time being, so he followed up by half speculating and half comforting himself: And based on past experience, their fighter jets dont have much fuel left after flying near the border, and they should return after a while. Well talk about it then. According to the previous plan, the attack planes lured by the fake positions should be quickly eliminated through an ambush. Then, if Pakistan takes off larger-scale fighter planes to seek revenge, their 16 planes will be responsible for forcing the opponent''s large forces back. . As a result, I did not expect that in the end, the two three generations of their own side were beaten by 2: 1 to eat, and now it has become the Indian army to seek revenge. ?And if it extends to others, Pakistan may also take off a large number of planes in response to try to force them back. In short, the situation has undergone a 180 reversal. ??Moreover, there are two menacing groups of Chinese Air Force fighter jets watching from the side. ?At this time, a call tone suddenly sounded on the radio. This is the Black Archers lead aircraft, and we found four targets appearing from the opponents direction of 250, with an altitude of 8500 and a speed of 1100! ??The Black Arrow squadron was the MiG-29 squadron that was at the front and had already caught up to the MiG-29 squadron, which was about 30 kilometers away from the two J-7Fs. At present, they are the only ones with radar on, while the other 12 aircraft are silent. This can disrupt the opponent''s judgment on the size of the incoming attacker to a certain extent. (The Indian Army obviously has no channel to know that the other two companies have been blended together) To the southwest, there should be the Mirage 3 of the 5th Squadron or the F16A of the 9th Squadron. They dont have medium-range bombs and can continue to pursue. ??Although Prayan is also a squadron leader, his military rank is a colonel, so he will assume certain frontline command tasks in the air. For countries that do not have early warning aircraft, it is also a common arrangement for an experienced veteran pilot from a fighter jet to take command. "receive!" ??The Black Archer''s squadron leader''s tone became visibly excited. ?Although it is generally believed that the MiG-29 is not as technologically advanced as the F16 of the same era, if we look specifically at the early A models of the two, the former, which can launch R27 and R73, will have a certain advantage. Today may be an opportunity to clear up the name. Black Archer, pay attention to your due north direction. There are two groups of Chinese aircraft flying radars to collide with each other. If he did not go in a straight line, Prayan felt that he might not have a chance to participate in the war today, so he just reminded the other party on the radio. My RWR has also reminded me, but dont worry, I will avenge your two men. ??The captain of the Black Arrow obviously did not listen to this reminder. Playan originally wanted to say a few more words. Because the biggest trouble caused by those Chinese aircraft is the restriction of combat airspace The boundary between mountains is indeed very clear on the ground, but in the sky, especially at the critical moment when dodging missiles or entering a fight, the boundary can be crossed by accident. Based on the relationship between the three countries, if the Pakistan Air Force planes fly in, there should be no serious consequences. But if our own aircraft enters, it will be difficult to say. ?However, after hesitating for a few seconds, he still did not speak again on the radio. Mainly because I dont want to be regarded as cowardly by my subordinates or some people in the base. ??And if the opponent really only takes off a few F16s or Mirage 3s, then it is not expected that there will be any fierce air battles. A salvo of R27 and Super 530 on your own side should solve the problem. Thinking of this, Prayan calculated the time and felt that the two escaping targets should have almost entered the range of his missiles. Activate the radar and prepare to launch medium-range bombs! ? He ??said that he turned on the working switch of the RDI radar and said to himself at the same time: Come on, lets give you a surprise After a short period of warm-up and self-test, the radar search information is displayed on the HUD. ? Similar to what he had just guessed, two targets slightly lower than his own appeared at about 10 o''clock of the aircraft. but The expected surprise was not given. Because the opponents backhand came over with a bigger surprise ?At the 1 o''clock position of the aircraft, about 60 kilometers away, another two groups, a total of 8, are approaching their targets at high speed... Fighter radar can only search a cone-shaped area directly ahead, and these 8 aircraft are obviously outside the detection range of the Black Archer. Black Archers, pay attention to your three oclock direction, there are 8 enemy planes! He shouted on the radio: Everyone, un-silence the radar! Obviously, India and Pakistan, as equal rivals in South Asia, are almost synchronized in their moves. They also prepared a huge fleet of aircraft at the back to suppress the opponent, they also adopted the formation form of multiple batches, and they also thought of using radar silence to delay the time when their own side is discovered... ?However, Pakistan, which took the upper hand in the end, was better and surrounded the Indian aircraft fleet from its posture. ??Had Prayan not turned on the radar at that moment, the situation might have been even worse. ?In this case, there is no point in continuing to remain silent. It is more realistic to quickly see what is happening in the sky. At the same time, the eight J-7Fs that found themselves scanned by radar also lifted their radar silence. ??Although the locking distance of the specially designed small radar is very short, if you just want to search for targets, it can still be done at this distance. In an instant, the sky over the entire Kashmir region seemed to be lit up by a variety of radar beams. (End of this chapter) Chapter 726 Big win of 41 Chapter 726 The great victory at 4:1 ??Due to the lack of a unit that could have an overview of the overall situation, it took the Indian army a full minute and a half to roughly understand the current situation through the chaotic radio On our own side, there are a total of 8 MiG-29A and 8 Mirage 2000H, divided into 4 formations, generally flying westward in a fan pattern. The opponent took off a total of 4 F16s and 16 unknown aircraft that were suspected to be the latest improved J-7. They were divided into three formations, showing a situation of being flanked by two sides. ?Of course, there are also 2 or 4 unknown model Chinese fighter jets located on the side, which seem to have no intention of joining the battle, but can still put some pressure on them. On the other hand, although it is also impossible for Pakistan to have real-time linkage with the Chinese military command, it is already a huge advantage to know the number, formation, and general heading of its opponents before taking off. In fact, from the perspective of hindsight, at the moment when both sides turned on their radars, although the Indian army did not have an advantage, it still had a chance to fight. ? 4 F16s without beyond-visual-range combat capabilities can be ignored, and what is left is nothing more than a 16-on-16 mid-range bombardment. ?In such a mid-to-high-altitude, clean-background combat environment, the MiG-29A''s radar is powerful enough after all, so it won''t suffer much. Even taking into account the range advantage of the R27 compared to the Thunderbolt 11, it may still have some advantages. However, due to chaotic frontline command and poor situational awareness, they missed the most golden 90 seconds of response time. Therefore, when the two squadrons of the Indian Army completed communication, the eight J-7Fs of the 5th Squadron, which came from the southwest, had already fired a round of medium-range bombs at the Black Archers squadron charging at the forefront. The entire flight process of the semi-active radar bomb requires the carrier aircraft to maintain radar tracking. Therefore, once the initiative is lost, the impact on the situation will be fatal. Because if the side that launches missiles from behind does not maneuver to avoid it, it will inevitably be shot down earlier, and the ammunition they fire will also lose its target and will not pose a threat at all. ?This is completely different from the logic of active radar missile firing. As a result, the eight MiG-29s that bore the brunt had to disperse and turn to avoid. ?Colonel Prajan also thought about rescuing some of his teammates, but his squadron was targeted one-on-one by the eight aircraft in front of him, and for a while he was completely unable to take action. As expected, a round of mid-range projectiles fired at the extreme distance missed the target. However, this round of evasion caused the Black Archers squadron to fall into a disadvantage in both energy and position, making it impossible to organize an effective counterattack. Only two aircraft barely fired two R27s in a low-to-high attack, but the more numerous opponents at high altitudes fired back almost at the same time. If this situation continues, the two sides will soon enter a visual range battle within 10 kilometers. ?At that time, the MiG-29 fleet, which had neither height nor speed, would probably be difficult to deal with these opponents. ?So after holding on for a while, the Black Arrow Squadron, who had just declared that they wanted to avenge Prayan, knelt down at the speed of light, turned around and headed east, preparing to take advantage of their acceleration performance to escape. At this time, the 7th Squadron had just completed a round of evenly matched shooting, and it was unclear what was happening on the other side. ?It wasnt until a few minutes later, when the frightened voice of the captain of the Black Arrows came from the radio, that they realized that they had been betrayed by their teammates... Fortunately, the 16 aircraft on both sides had all fired up their medium-range bombs at this time, and had not yet entered a visual range fight that was difficult to escape. So I can still run. ??But at this time, the role of those few Chinese Air Force fighter jets became apparent. Warning, you are approaching Chinese airspace, please turn away immediately, otherwise you will be responsible for all consequences... A slightly stilted English sounded on the public radio channel. ??Both sides had already disbanded their formations in order to avoid medium-range missiles. However, the aircraft closest to the border could only make a 270 turn in a very awkward attitude in order not to enter the Chinese airspace. The waste of time is secondary. The key is that such a turn will shorten the distance with the opponent. But there was no choice. ??If you insist on rushing to the other side, the situation is likely to become a mixed doubles. There is no way to survive. In the end, the plane that fell at the rear was shot down by two Thunderbolt 11s fired from the fifth squadron from another direction. ?The Pakistani Air Force was also worried that the MiG-29s that had just escaped would suddenly come back, so they only conducted a very restrained pursuit. A melee that left countless trails in the sky ended in 1:0. There is no way. When both sides have neither reliable air command capabilities nor active radar bombs, nor are they prepared to enter combat, the efficiency of beyond visual range shooting is very low. ?However, considering the previous 2:1 result and the fact that this was a calculated and unintentional ambush by the Indian army. ?Then it is obvious that Pakistan has made a lot of money. However, all this is not completely over yet. The pilots of the Tail Blade Squadron who returned from victory soon discovered a problem. Has any of you seen the squadron leader? ?During the return flight in a joyous atmosphere, someone suddenly asked on the radio. The channel instantly became quiet. The melee just now had turned into a mess, so naturally no one had time to pay attention to the three lonely planes. Perhaps you have landed in Punjab? Some people speculated. But soon, the base commander gave a negative answer: No, Lieutenant Colonel Sami and his wingman were not seen from the 9th Squadron, but the attack aircraft of the Panther Squadron has landed. By this time, Sami and his wingman had returned to the battlefield and quietly walked around to both sides of another Mirage 2000 that had dispersed and returned before it had time to regroup. He did not chase the MiG-29s that he had left before, because the opponent still had more than a dozen medium-range rounds in his hand that had not been fired. This is not available on these Phantom 2000s. She is completely at his mercy. According to the plan, the wingman approaching from the other direction turned on the radar first. ??Although the two missiles on the wingman had already been fired in the initial 2-on-2 air battle, the frightened Mirage 2000 obviously didn''t know this, and was still frightened and turned directly to a direction closer to Sami. Everything is within the latters calculation. When the RWR of the unlucky Indian aircraft sounded for the second time, it was already too late. ?The pilot turned around and saw two missiles that had not even finished their power phase, hitting him one after another. ? He ??barely dodged the first one with a powerful turn, but the second missile, launched one second apart, adjusted its direction in time and detonated under the left wing of the Mirage 2000. ??The rapidly expanding continuous rod warhead ripped apart almost the entire wing, and because the height was so low, the pilot did not even have time to parachute... Squadron Commander, my fuel is running low, what should I do next? After rejoining one place, the wingman pilot asked in a trembling voice. With the remaining fuel, let alone returning to his base, it is unrealistic to even fly to the base of the Griffin Squadron. ?However, since Sami dares to catch up, it means that everything has been planned: Turn to direction 290. I know there is a civilian airport in Batilstan with a runway length of 3,700 meters. Lets land there. On the other side, after the 7th Squadron regrouped, Colonel Sumit Prajan realized that he had just lost more than one of his men. ***s Black Archer Squadron ?Playan punched the cabin wall in annoyance. ??Had it not been for the Black Archers'' retreat without warning, they would have even had a slight advantage in the situation. However ??He just witnessed a wingman crashing on a ridge. The pilot ejected from the cabin, but the parachute would most likely not open in time. ?Now it is discovered that another four-machine formation is also missing one aircraft. ?Just a few minutes ago, they were still thinking about using the stealth mode without turning on the radar to break the opponent''s concealment. ?However, in the end they themselves became the ones whose concealment was broken. and lost a quarter of the formation in the dark minutes that followed. ?The lieutenant colonel endured the pain and replayed everything that had just happened over and over in his mind. ??The failure of the initial two-plane formation sneak attack can also be explained as bad luck or being calculated by the oriole behind. But the ensuing air battle between the two large formations should be evenly matched or slightly dominant no matter how you think about it. Why ?The other party acted as if they knew their direction in advance. But the other side does not have a long-range air defense system or early warning radar near the border... Even if it does, it is impossible to see it so clearly due to the terrain... Prayan suddenly figured out something. He raised his head and looked at the vague snow line on the left side of the cabin. Tomahawk Squadron, you will transfer to Chandigarh to land, and pay attention to descending altitude in time. ?Amid the pain and anger of losing his teammates, Prayan heard an elderly voice coming from the radio in a trance. ?That is Lieutenant General Bhadauliya, chief of staff of the Western Air Force Command, who is responsible for the frontline command of this mission. Chief of Staff Hearing this voice, Prayan''s tone was a little choked: We lost four planes today, and three of our brothers failed to parachute... I know, Lieutenant Colonel, I know Badaulias tone was also very low: "The captain of the Black Arrows just told me that he was sorry..." ?Prayan has calmed down a little now. He knows that in the final analysis, this matter cannot be entirely blamed on the other party. ?With the loss of the first mover, even if the Black Archer notified him in advance of the retreat as soon as possible, the 7th Squadron, which had already been trapped in a mid-range missile exchange, would not be able to retreat before both sides ran out of ammunition. This is a technical gap. Chief of Staff, we cant go on like this. The lieutenant colonel suppressed his grief and said on the radio: "We must have our own early warning aircraft, otherwise we will always be overwhelmed by the radar on the mountain..." (End of this chapter) Chapter 727 Is it really better to rent than buy? Chapter 727 Is it really better to rent than to buy? ??This humiliating defeat over the Siachen Glacier has become the biggest topic in the Indian Air Force community in the past two days. In this regard, Colonel Sumit Prajan, the commander of the 7th Squadron who personally participated in this battle, once said privately that if the Air Force fails like this, it will probably lose face... So, Colonel, do you think that the other party should have obtained information about the number, model and detachment strategy of our aircraft from the Chinese in advance, so that they could respond in advance? In a conference room at the Western Air Force Command, several Air Force leaders, including Chief of Staff of the Air Force General Klimpa, and Chief of Staff of the Western Air Command Lieutenant General Bhadauliya, were listening to Prayan''s comments on the past few days. Review and analysis of the previous air combat operation. Thats right, otherwise those few Chinese Air Force fighter jets wouldnt have appeared near us so coincidentally. The latter nodded very firmly: "Although they certainly couldn''t command each other directly and could only conduct a one-time ventilation before taking off, the tactics we formulated in advance were too rigid and no adjustments were made during the entire execution process, so in the end they were overthrown by those who had been prepared for it. The opponent made the first move." "Actually, even so, relying on the performance advantages of our fighters, we could have maintained a balanced confrontation. However, since there is no data link and no command that can have an overview of the overall situation, I can only rely on radio to obtain radar information in the cabin. Fans, as well as target information beyond the search distance, delayed the most critical minute of time..." ?Playans report appears to be acknowledging his command issues, but if you analyze it a little deeper, you will find that he completely removed himself from it. ?Of course, this time it was indeed a crime other than war. So, your conclusion is The first person to ask the question was Admiral Klimpa, who was sitting in the middle opposite. ?Of course, this can only be regarded as a routine question. ?However, Prayan did not beat around the bush, but directly gave his conclusion: In the absence of a common data link among the three armed forces, effective air situation awareness and command cannot be achieved solely by fighter radars and radios. We need to build plateau radar stations like those in China, or early warning and command aircraft. ?This passage seems to give three options, but in fact it is not ? A common data link between the three services is something that even the US military in the late 1990s did not dare to think about. ??In fact, it was more than 20 years later when the U.S. military achieved full universal use of link16 under test conditions, when Chang Haonan was reborn. And the plateau radar station Just look at the topographic map and you will know that the Himalayas rise almost vertically in the border area. The Indian side happens to be in a lower altitude area and does not have this condition at all. So, the only option that is really feasible is to develop an early warning aircraft. ?At this moment, the entire conference room fell into silence. ?At this juncture, the Indian Armys early warning aircraft project is a matter that is not convenient for public discussion. A few months ago, in January 1999, the Indian-made HS748 platform early warning aircraft, which had previously invested heavily and had high hopes, crashed due to unreasonable aerodynamic design. Since then, the top leaders of Congress and the military have once again been locked in a debate over whether to build it themselves or find outsiders to solve it. ?This kind of debate largely involves the internal interests of different groups and is not entirely a military issue. Therefore, generals who do not want to cause trouble for themselves often subconsciously avoid such topics. Are there no other ways to improve it? ??Klingpa really didn''t want to get involved with those old men who didn''t wear military uniforms. "No." Playan shook his head decisively, and then added: As for the role that early warning aircraft can play in air combat, I think no one in the entire Air Force knows better than you... It was quiet again. Looking at the generals who had been silent for a long time, Prayang sighed in his heart and had no choice but to use the ultimate move he had prepared: In addition, considering the incredibly fast response of the Chinese people this time, I suspect that they have deployed aircraft on a regular basis at the plateau airport. If this is the case, then the Chinese Air Force will have an altitude advantage of nearly 3,000 meters over us as soon as it takes off. Combined with the early warning command capabilities provided by the plateau early warning radar..." The colonel did not finish speaking, but the meaning of the second half of the sentence was already very obvious. For Indians who aspire to become a great and influential country, this is absolutely unacceptable. Okay, Colonel, matters about China are outside the scope of this discussion. Bhadauliya next to him said, waving his hand: "We''ll stop here today. You can go back and rest first." After Prayan left, Klimpa, who was sitting at the head of the conference table, took a deep breath, then leaned on the back of the chair with his arms folded, showing a complicated expression. The reason why the former said that just now is because Klimpa is the first pilot of the Indian Air Force to shoot down an enemy plane under the command of an AWACS aircraft. It was also because of this result that he completed the leap from a senior pilot to a senior commander. This, we have to mention, a certain big country in South Asia has repeatedly struggled with early warning aircraft. In 1971, in order to cope with the imminent conflict, the Indian Air Force wet-leased a Tu-126 early warning aircraft from the Soviet Air Force. It was also because of the help of this aircraft that, while acting from behind, we achieved nearly twice as many results as our opponents. The conflict that year also ended with a complete victory for India. Logically speaking, after such a battle, they should be able to intuitively feel the value of early warning aircraft as a combat power multiplier. Even if they do not start self-research, they still have to buy a few and use them first. ??However, the Indians'' choice is to further establish a good relationship with the Soviet army and plan to continue renting it when needed next time... In this case, it is not even considered that it is better to buy than to build, but in a literal sense, it is better to rent than to buy. ?Later, after many efforts by the Air Force, Stan Aviation finally launched an ASP plan to develop a self-developed early warning aircraft. The product is the HS748AEW&C mentioned earlier. As a result, because Party A refused to lower the performance indicators, the designer had to install a huge radar with a diameter of 7.5 meters on a small aircraft about the same size as the Yun-7 (for comparison, the E3 and A50 are only 9 meters) , causing flight performance to plummet. Finally crashed a few months ago. ?Anyone with a discerning eye can see that this ASP plan, which has high ambitions and low power, can no longer continue. At present, we are in the separation stage after the project failed. Party B accuses Party A of being too ambitious, and the indicators proposed are simply talking in sleep and are unrealistic. Party A says that Party B has received so much money and is not doing anything, and it is afraid that it will swallow all the money. What do you think of Colonel Prayans suggestion just now? After a few minutes, Klimpa sat upright again and asked his colleagues sitting on both sides of him for advice. For a while, no one responded. Finally, Badauliya, whose military rank was second only to Klimpa''s, spoke: Although what he just said was inevitably intended to shirk responsibility for himself, but... When the Lieutenant General said this, he hesitated deliberately. After all, Prayang is his subordinate, and saying good things to the other party at this time will inevitably seem to be protecting him. After making sure that his boss was not dissatisfied, he continued: But I think the problem the colonel just mentioned does exist. In the past, the Chinese could not deploy aircraft on the plateau, so the terrain was an advantage for us. The radar on the snow line could only be regarded as a trouble at best, not a threat, but now... the situation may have changed. ? ?Klingpa naturally understands the implication: Do you also think that the Chinese have moved their planes to the plateau? ?This kind of thing is naturally difficult to explain clearly, given the lack of satellite reconnaissance means and the fact that the MiG-25 does not dare to fly around casually. But Badauliya did not answer directly: "Chief of Staff, the MiG-25 was shot down two years ago, but it has not been investigated clearly yet..." ?This hint is extremely effective. I saw that Klingpa''s face began to look uncertain, and he held his chin with one hand and fell into thinking. (End of this chapter) Chapter 728 The ambitions of South Asia’s great powers Chapter 728: The ambitions of South Asian powers After a long time, Admiral Klimpa spoke again: If we agree with Colonel Prayans suggestion, then... what channels are there to obtain a reliable early warning and command aircraft in a short period of time? After all, I think that after going through the ASP plan, Stan Airlines should not be able to count on it anyway. Facing this somewhat sudden question, all the generals looked at each other. This time, including Lieutenant General Bhadauliya, no one spoke immediately. After all, matters involving equipment procurement are often not purely technical issues. ??Proposing opinions hastily at this time may very well lead to oneself being "taken on one''s side" for no apparent reason. ??If the plan succeeds, it''s easy to say, but if something goes wrong in the middle, it will be easy to be thrown out as a scapegoat. ?Its not like this kind of thing has never happened in the past. ? ?Klingpa looked around and realized that the occasion was not appropriate, so he waved to the meeting recorder sitting next to him: The formal stage of the meeting is over, lets talk about personal matters next. This meaning is already obvious. Everyone breathed a sigh of relief and closed the notebooks in front of them. The recorder got up and left the meeting room directly. In this way, the rest of the conversation can be regarded as informal chatting. ?Those who can sit on this occasion today are all high-level officials of the Air Force. Naturally, they hope to add more good things to their own troops, so that they can also improve their voice. So after no longer worrying about leaving archive records, the atmosphere instantly became much more relaxed. Soon someone suggested: Can you consider renting two more A50Us from the Russian Air Force for temporary relief? Obviously, it is absolutely easy to form path dependence in terms of buying rather than renting. ?However, Indians today still have dreams after all. To become a great and influential country, it is definitely not possible to just rent planes. ?Hence, Klimpa immediately waved his hand: "Although we suffered some losses a few days ago, the combat effectiveness of the army on the opposite side is really not good. Generally speaking, it is a tie. It is estimated that they will be relatively stable in the past few years, so there is no need to be too anxious about the immediate situation. You can consider a slightly longer-term plan. " "Moreover, the cost-effectiveness of renting equipment is too low. The price the Russians offered for the Tu-126 was almost half of the cost of the aircraft. If there is damage or failure during the rental period, there will be high compensation... In short, it is not as good as in peacetime. Its a good deal to buy a plane. Then just buy two A50Us currently in service in the Russian army? ??The person just now was not a member of this interest chain. He suggested renting a plane just out of habit. Therefore, when the leader objected, he immediately changed his tune: "After the disintegration, they don''t need or maintain the dozens of early warning aircraft. We can select some in good condition and renovate them a little. This way the price will be lower than new ones, and the delivery speed will be fast. Based on our past experience, this kind of arms sales drawn from active equipment can be completed in about half a year at the earliest. Logically speaking, this should be considered the most practical plan for the Indian army. After all, early warning aircraft are still relatively sensitive. If you want to buy an existing E2 or E3, others may not sell it. However, as expected, after the idea of ????buying rather than renting was suppressed, the Indians'' overjoyed side of success immediately took over. Especially Lieutenant General Badauliya, who initially expressed support for the purchase of early warning aircraft, was even more encouraged: "Chief of Staff, although the A50U will be available soon, after all, it is an old model from more than ten years ago. It still uses a traditional mechanical scanning antenna. The number of targets that can be processed at the same time is only 200-300. For our country, It will be difficult for an air force of this size to cope with the wars of the 21st century in the future. Furthermore, according to Russian habits, even if it is a second-hand aircraft drawn from the active army, their price will probably not be much lower than that of a new aircraft..." ?His words of guidance were very good. Admiral Klingpa had almost agreed to the plan to purchase the A50U, but after hearing this, he suddenly became hesitant. ??If the early warning aircraft purchased at a large price soon falls behind, then as the chief of staff of the Air Force, it may be difficult for him to escape accountability. ??But the officer who made the first suggestion did not give in at all, and immediately retorted: But even the American E3s technical status is basically about ten years ago, and it also uses mechanical scanning radar... ?However, such arguments cannot refute the eloquent Bhadauliya. As a theater air force commander, he has been tracking the most advanced aviation technology in Europe and the United States for a long time, so he quickly found the other partys loopholes: "Because of this, the US military has launched a new early warning aircraft research and development project last year. It plans to replace the E3 and E8 models with the MC2A early warning aircraft on the Boeing 767 platform. The Russians lost their research and development capabilities in this area after the disintegration, so they did not Just a follow-up. ? ? This ??The other party obviously didn''t know the details of this MC2A project, and was speechless for a while, so he had to change the topic: So, if you think the A50U cannot meet our needs, who else can provide a more advanced model? MC2A should still be just a plan, and even if the plan is completed, Americans may not sell it to us. ?Seeing that the atmosphere in the conference room was already smelling of ignition, another lieutenant general quickly raised his head and pressed down, and then tried to smooth things over: "From a purely technical perspective, I remember that the Swedish Saab company delivered the first Saab 2000 platform early warning aircraft last year. It was equipped with an active phased array radar developed by Erieye, which should be in line with General Bhadauliya''s requirements. requirements, and although it is not off-the-shelf, it is a mature model that is already in service. With its small size, the delivery cycle should be very fast..." As a result, after finishing one sentence, the other two people who were about to quarrel looked at him almost at the same time and shouted in unison: "no!" On this matter, the two people''s attitudes were very consistent. The size of the Saab 2000 is almost the same as that of the HS748 platform early warning aircraft that we just canceled, and its take-off weight is only just over 20 tons. ??Badauliya clenched his hands into fists and said emotionally: "I think HS748 has proved that an early warning aircraft of this size cannot carry a large enough high-performance radar, and the range of regional airliners may be enough for countries like Sweden, but it is difficult for us to provide it. Enough mission time. Obviously, he is not willing to purchase only a small-sized light early warning aircraft. General Badauliya, I wonder what you have to say? The lieutenant general, who had just been beaten back by the two men, had no choice but to ask: If you think none of the plans we proposed meet the requirements, you should have your own ideas, right? Of course. ??Badauliya was waiting for this moment and immediately sat up straight: Since you have decided to purchase from outside, you should try your best to get it right in one step and choose a model that will not fall behind in the next 10-15 years. "There are currently only two countries in the world that can provide ready-made early warning aircraft with active phased array radar solutions. But as I just said, the Swedish solution is too small and not suitable for a big country like us. In this way, it will Only the Philcon system of the Kingdom of David is left. But if Falcon uses the Boeing 707 as a platform, there is a high probability that the Americans will not agree to sell it to us, right? ??The question this time was from Klimpa, who had not made his position clear just now. ?Although it sounds like a question, this issue has gone directly to the implementation level, indicating that the admiral is obviously also interested in the Falcon system. Having seen through this, Badauliya decided to strike while the iron was hot: We dont need to use the Boeing 707 platform. After all, the original Falcon still has a blind spot of about 60 at the tail. At this point, he paused for a moment, and then changed the subject: "A few years ago, China and the Great Patriotic Republic jointly launched an early warning aircraft research and development project called the ''Ring Project'', which used the Falcon system to adapt to the IL-76 transport aircraft platform. It looks similar to an A50U, but its functions are different. It is much stronger, and because it is a traditional disk antenna, it can achieve 360 detection without blind spots. Recently, due to some external reasons, the progress of this project has not been smooth. It is said that China has made many protests over this matter, but it obviously has no effect. "The early warning aircraft project should be in a state of stagnation now. The British side is unwilling to continue to push forward, but if it violates the contract directly, then at least the advance payment will have to be refunded. In this way, the sunk cost invested in the early stage will be wasted... So I think they should have a strong desire to find a home for this project. Having said this, Bhadauliya did not continue, but looked at the colleagues next to him with a look that said "everyone understands". You want to stop this Chinese project? There seemed to be a hint of excitement in Klingpa''s tone. After the humiliating defeat in 1962, India has always regarded the northern powers as its main competitors, or imaginary enemies (although the other side does not think so). ?Hence, if we can give China an eye-opener while advancing the early warning aircraft project, it can undoubtedly be regarded as a symbolic victory. In addition to boosting morale, more importantly, such a plan is also easier to pass in New Delhi. Thats right, Badaulia nodded: "According to previous reports, the price negotiated by Huaxia and David Country was US$350 million per aircraft. Of course, this was the situation in the early 1990s, but if we take advantage of David Country''s eagerness to withdraw funds, there would be a lot of potential. There is a high probability that the original price will be maintained. You know, even if we buy a second-hand A50U now, the price will not be lower than this figure... Moreover, the completion of this project is very high, and we should not have to wait too long to get the aircraft. (End of this chapter) Chapter 729 Open the eyes of Europeans Chapter 729 Opening the Eyes of Europeans Compared with the fierce response of the South Asian powers on this matter, the attitude of the East Asian powers appears to be much duller. Or rather, I feel relieved about the southwest direction. On the one hand, the outcome of the entire conflict hardly changed the status quo. Although the Pakistan Air Force relied on its intelligence superiority to achieve a wave of great victories, the Army, whose combat effectiveness was really poor, was still unable to resist the counterattack and destroyed several hills it had occupied in the past month. Gave it back. This is actually the result that China is most happy to see ?Whether from a historical or practical perspective, South Asia is not the focus. If too many resources are invested in this direction, it will create strategic constraints. Therefore, India and Pakistan need to maintain a balance of power. No matter which side is too strong, it is not a good sign. On the other hand, in the process of responding to this emergency air situation, the Air Force aviation and radar units also delivered perfect answers. In the past, even if the radar station detected abnormal movements of the Indian Air Force in advance, the J-7 and J-8I fighter jets nearly a thousand kilometers away could not arrive in time to deal with them. Only a few air defense missile battalions could barely act as the final barrier. . ?Under such circumstances, if a big country in South Asia really gets the idea and makes some big news, objectively speaking, it would be difficult to stop it. ?If nothing else, the MiG-25 cross-border reconnaissance was completely stopped only after a fight was fought during the bat hunting operation. But now that the aviation force has proven its plateau deployment capabilities and response speed, concerns in this regard have naturally been eliminated. ??As for the Indians idea of ??cutting off the ring project This matter is still in the discussion stage within the Air Force, and China obviously has no way of knowing. And more importantly, after senior leaders inspected the Air Police 200 project and saw the large-scale early warning aircraft development plan submitted by Ding Gaoheng, China has essentially given up on the idea of ??obtaining early warning aircraft through the ring project and turned to self-reliance. route, but on the surface it is still entangled with the Kingdom of David. ??If Indias actions can bring this doomed project to an end sooner and return funds, it will be a good thing for China. ?At this moment, the leadership of the aviation industry and the Science and Technology Commission is still focusing on the supplier contract signed with Airbus. Luzhou, Aviation Industrial Park. Although the core of the park is still a wasteland waiting to be built, some impatient companies have begun to build their own factories, or at least offices, on the edges. ?For example, Rongfei Group, which has been responsible for producing cabin doors for the Airbus A320, and Shengfei Group, which is responsible for producing tail cone work packages, have gradually begun to relocate their civilian product lines here. The former, which is relatively close, has even broken ground on its workshop. Therefore, when the EU aviation industry delegation, including Airbus Group, arrived in Luzhou for the second time, they were taken directly to a busy construction site as soon as they got off the plane. "Dr. White, this place... seems... different from when we came here last month?" ? Anne Colombo, senior representative of the European Joint Aviation Authority (JAA), was a little confused looking at the scene in front of her. ???If she hadn''t been here once during the previous negotiation and barely knew the way, and if the team leader was also an old acquaintance, Huai Guomo, she even worried for a moment whether she had been abducted. After all, its been more than a month, there must be some changes. Huaiguo Moxin said that if we could delay the approval process for ten or eight years like you in Europe, there would be no need to think about developing an aviation manufacturing industry. Of course, you still have to introduce (show off): "Since we signed the last agreement, relevant enterprises and institutions in our country have been very enthusiastic. Several enterprises that have obtained your production qualifications have begun to transfer production capacity here. The future of this construction site is planned Used to produce aircraft doors and parts of the fuselage. There are also some companies that are very capable but have not yet been included in the ranks of your suppliers. They have also set up offices here to cooperate with you in simplifying the approval process. ??This large-scale industrial park strategy has almost become path dependent in China in the past two decades, and even Huai Guomo said it is a bit conservative. Relevant companies, especially those that have the ability to enter the industry but have not yet entered the industry, have actually begun to operate at various levels when the industrial park has just been finalized and the location has not even been determined. ?After the company was officially opened to move in in March this year, the office of the industrial park was almost paralyzed by a swarm of business personnel for a week. But for Europeans I have never seen this scene before.jpg A gray-haired old man walking on the other side of Huai Guomo also recovered from his stunned state. ?Although he looks unremarkable, this man is Dr. Bernard Ziegler, Senior Vice President of Engineering at Airbus Group and chief engineer of the Airbus A320 project. ?? is also the team leader sent by Airbus. After China and the EU signed the agreement in April that can be said to have saved the future of the euro, the policy obstacles in the Airbus Asia (China) final assembly center have completely disappeared. Ziegler came here this time to conduct an inspection at the technical level to finalize the timetable for the construction of the final assembly line. To be honest, this kind of business is nothing new to him. In the early 1990s, Ziegler led a team to conduct similar inspections in Eastern European countries that had just opened their markets, and in South American countries including Brazil. The conclusion is that for these developing countries, even if they have a certain aviation industry foundation, there is still a big gap between them and Airbus'' requirements in terms of operational efficiency and project management. There is no doubt that China is also a developing country. Therefore, before this trip, his most optimistic estimate for the completion of this production line was probably 5-7 years later. As for truly achieving the double guarantee of output and quality, there is no way to calculate the time. However, just a few hours after landing, his eyes opened wide. So, your plan is to...concentrate all the industrial chains related to our Airbus Group here? Ziegler turned around and confirmed to Huai Guomo, who had just finished talking to Annie. ?Of course he could tell that this was what the other person just said, but he still felt it was a bit exaggerated. The aviation manufacturing industry involves too many industrial categories and is too complex. It is of course impossible to centralize the entire industry chain. Huai Guomo shook his head and denied it very simply. However, before Dr. Ziegler could breathe a sigh of relief, he changed the subject again: However, we are indeed prepared to centralize all first-tier suppliers as much as possible. ??Ziegler''s unsaid words were stuck in his throat, and his eyes trembled when he looked at Huai Guomo. The latter wanted this result, so he paused for a moment before continuing: I know that Airbus aircraft in Europe first produce large components in factories located in different places, and then use special A300-600ST transport aircraft to transport them to Toulouse for final assembly. "But for us in China, on the one hand, we lack special transport aircraft, and it is difficult to remotely transport large components at the entire fuselage level. On the other hand, our advantages mainly lie in cost and efficiency. If we also adopt the method of decentralized production and then centralized assembly, model, then the advantages in these two aspects will be reduced. "In comparison, we are more inclined to increase investment in infrastructure in the early stage and centralize the industrial chain in advance. In this way, the large components produced only need to be transported by land for final assembly. It happens that we also have enough land and administrative resources. ability, so we made such a plan. ButDr. White. Ziegler frowned slightly: "Even so, most of the large components required for final assembly still need to be produced by factories in Europe and then transported to your country by air. Moreover, the A300-600ST itself is built on a mature platform, and the flight cost is similar to that of a normal passenger aircraft. , for an industry like aviation manufacturing, it is not a big expense. It should be said that his doubts are justified. ?Flying large components from first-tier suppliers to final assembly plants may sound like a luxury, but considering the very high value-added of products like aircraft, it is not that difficult to accept in real terms. ?Moreover, even if the first-tier suppliers are brought together, many parts provided by the second-tier suppliers, such as the aircraft fuselage bulkheads or landing gear actuators that Jiangzhong plans to produce, will still need to be transported by air. It is just an aircraft that does not need to be specially modified. But Huai Guomo can''t say that we are not only preparing to produce your Airbus aircraft here on a small scale, but also preparing to produce other companies'' aircraft here, and may even include the aircraft of your archrival Boeing. If we don''t plan for the long term, then Just transport planes transporting large parts may not be able to arrange routes due to too many sorties... So I had to focus on the front half: "Dr. Ziegler, according to our plan, the first phase of the cooperation not only includes a final assembly line, but also transfers the A320 fuselage section to China for production, and these ancillary facilities are exactly what is planned. part." ?) ??Ziegler just gasped and said to himself that your ambitions are not small. It doesn''t look like you only want to do final assembly, but more like you are preparing to move the entire aircraft production process... Dr. White, with all due respect. He said firmly: Although the body of a passenger aircraft looks simple, it actually includes many structural parts and has very high requirements for processing quality and craftsmanship, especially... ?But before he finished speaking, he was interrupted by Huai Guomo waving his hand: Dr. Ziegler, of course I know what you are talking about. "As for whether we have this ability, I believe you will be able to make a judgment later in the trip." (End of this chapter) Chapter 730 fighting left and right Chapter 730 Fighting each other As the leader of the Airbus delegation, Bernard Ziegler certainly knew that after finishing his trip to Luzhou, he would go to Jiangcheng to visit a company that produces and operates heavy-duty forging equipment. In fact, they even applied for the second trip themselves. ??Just to take a look at Chinas technical level in the field of forging technology. But both Ziegler himself and the technicians who applied at the time wanted to hand over the production of some non-important components to China first. ?This is not because they deliberately obstructed it. The main reason is that the French themselves have a 65,000-ton heavy-duty die forging hydraulic press imported from the Soviet Union, and they have a very intuitive understanding of the technical difficulty of forging and producing large-size components. Lets not talk about whether Chinas equipment can meet the standards. Even if there is a mature equipment, it does not mean that it can be put into production immediately. ??A 10,000-ton hydraulic press is not a punch press used in small workshops. It can be operated by just learning. Even if different equipment wants to produce the same parts, the process parameters will be different. ?Even if they want to teach, it is unlikely that they can learn it in a short time. ?Of course, as a technician, no matter what he thinks in his mind, Ziegler is still relatively cautious in his stance and will leave himself sufficient escape routes. ??And more importantly, from his point of view, he actually hopes that this Asian assembly center can be completed and put into production earlier. First, the cost of production in Asia and sales in Asia will indeed be lower, which will also help Airbus continue to expand the Asian market by taking advantage of the momentum of the previous two years. Secondly, as the number of orders continues to increase, the production pressure on the factory in Toulouse is also increasing. For this reason, he has repeatedly proposed to expand the scale of the Toulouse factory, but he has been repeatedly kicked, and until now he has not received a clear permission. . The construction of a new production line will also help to force the local area to improve efficiency. ?Hence, he just nodded calmly: Then, I look forward to the next trip bringing us more surprises. ?At the same time, in Jiangcheng, Chang Haonan is also making final preparations before trial production of the die forging press. Under the roof of the factory building, even banners celebrating the 50th anniversary of the founding of the People''s Republic of China have been hung. ?Although it is only late May, giving gifts for National Day does not necessarily have to be limited to October. Some units will even start after entering 1999. As for the content of preparation It is natural to go through the entire production process. Although it is presented as a "trial production", the basic processes of a heavy-duty hydraulic press include six: fast forward, pressurization, pressure maintaining, pressure relief, return, and stop. The entire production process can take anywhere from a few hours to more than ten hours. It takes several hours, and the whole process is accompanied by strong noise and vibration. The two steps of pressure relief and return are even more dangerous... In short, it is impossible for leaders and guests to watch the entire process on site. ??You must complete the first few steps in advance, wait until the ceremony begins, take the product out of the forging press, and celebrate at the end. What Chang Haonan and the others are doing now is to test the feasibility of the entire production process according to the process parameters of the J-11B fuselage frame. "Mr. Chang, the new functional processing method you came up with before, we tested it, and it is indeed much more efficient than before." Lin Jingtang walked into the control room from outside the door, holding a laptop and a large stack of paper information, and then carefully placed it on the table: "Originally, we planned to calculate the results in about three months. Even after changing the algorithm, we originally expected it would take about two months. However, in actual calculation, it only took one month. Not only did we calculate the parameters, but we also added extra Optimized again. Hey...actually, this is not entirely the result of the algorithm. ?Chang Haonan waved his hand towards him: The main thing is that I told the computing institute to increase the allocated computing power. Otherwise, even if the algorithm is changed, it would not be possible to produce so much quickly..." So thats it? ?Lin Jingtang was stunned after hearing this: I thought there was something wrong with our calculation estimate... ?At this time, He Ming, who was wearing blue work clothes, also came back from the workshop. He happened to hear Chang Haonan and his two chatting, so he continued: "There is no way. Our factory needs this partition very urgently. The key superior leaders have already concentrated the technical staff on Project 11. We still hope to get the B-model prototype after the major modification within this year. come out." ??As he spoke, he took off his safety helmet and hung it on the coat rack by the door. Then he sat down next to the console and watched the equipment operator enter the operating parameters one by one. Indeed, its similar to our project, and it also happens to be an opportunity to give a gift to the National Day. ?Lin Jingtang said without looking back while checking the parameters on the computer. But He Ming shook his head: "The Type B aircraft of Project 11 will definitely not be able to make the National Day gift in time. Even if it can make its first flight within the year, it will only be in November or December. Besides, we have almost completed the gift with the help of Mr. Chang over the years. Its become a daily routine, and this model is not bad. The key point is that in the past we have always built the aircraft and then waited for others to build the aircraft, but this time..." Speaking of this, he glanced at Chang Haonan next to him: "Currently Mr. Chang has taken out the supporting engines, but our aircraft is still there... Moreover, the aviation industry and aviation power will be split up in two months. Project 10 and Project 11 are considered to be separate. In the first round of cooperation after returning home, if both parties are held back, it will not look good..." The new plan of the J-10 is the opposite of the J-11B. The internal equipment has not changed much, but the aerodynamic and structural design are so radical that it requires a new round of wind tunnels, and the progress will definitely be slower. Therefore, compared with The important task of improving the progress of Turbofan 10 can only fall on the latter for the time being - In the past, it was always said that the engine was holding us back, but now we are being hung up and beaten as soon as we separate. No one can afford to lose this face. ?However, after hearing He Ming''s explanation, Lin Jingtang frowned, raised his head after thinking for a while, first looked at He Ming, then at Chang Haonan, and finally at He Ming, showing a complicated expression. Why are you looking at me like that? He Ming was a little embarrassed by the look. Look ?Lin Jingtang had also completed the parameter check at this time, so he simply put the computer aside: According to you, the turbofan 10 was designed by Mr. Chang. He Ming nodded. But the aircraft bulkheads, equipment and processes we are currently producing were also developed under the leadership of Mr. Chang. He Ming continued to nod. "Then isn''t this equivalent to... letting Mr. Chang fight with each other?" (End of this chapter) Chapter 731 A gift for National Day! (4K) Chapter 731 A gift for National Day! (4K) When Lin Jingtang said this, He Ming suddenly felt... It seems that this is really the case. Originally, Chang Haonan did not directly participate in Project No. 11, including subsequent improvement projects. After all, through the training of the previous August 3rd Project, both the 601 Institute and the 112 Factory have accumulated a group of technical personnel with relatively strong combat effectiveness. As a result, when it comes to first-tier suppliers, they still havent escaped Chang Haonans shadow. ?However, regarding this matter, He Ming''s mentality is still relatively good. There is no shame in looking for foreign aid. Dont ask, even the turbofan 10 has done the job. Do you understand what a control variable is? Chang Haonan, who was standing next to him, was just watching the excitement, but the topic was suddenly brought to his head. Seeing this, he quickly waved his hand: Although the Aerospace Power Group will soon become independent, in the final analysis we are still comrades in the Science and Technology Commission system. Even if there is competition, it should still be carried out within the general framework of cooperation. Strictly speaking, Jiang Zhong is not an enterprise in the aviation industry. Producing fuselage parts for Factory 112 is a normal business practice. Dont over-interpret it..." In fact, when it was first proposed to split the aviation industry according to business differences, Chang Haonan''s idea was simply to allow the aerospace engine to be independently developed independently of the main engine model, and by the way, it could also reduce unnecessary work to a certain extent. Resources are invested repeatedly. As for competition, it was weakened as a non-important factor in the original plan. After all, judging from future experience, with the exception of the aerospace industry and the weapons industry, all other fields undergoing parallel splits, such as aviation, shipbuilding, railways, etc., have been re-merged after going through some twists and turns. But now, it seems that the host and power have formed some kind of healthy competition. It belongs to the willow tree that has been planted unintentionally to form a shade. By the way, Mr. Chang. Since Chang Haonan said so himself, it is naturally impossible for the other two to continue on the previous topic. ??Just now the topic of the Aviation Development Group was mentioned again, so He Ming took advantage of the situation and changed the topic: After the official establishment of the Aviation Development Group, turbofan 10 should be regarded as a project that has achieved a good start, right? Chang Haonan raised his head slightly, thought for a moment and replied: According to the current timetable, if nothing else happens, the design of the Taihang project should be finalized next year. So strictly speaking, the first completed project after the establishment of the Aviation Development Group should be the turbojet 6D ?Although he has not been officially included in the aerospace power group''s preparatory team, he is still one of the future team members, so he naturally knows something about these things. He Ming was stunned when he heard this model: Turbojet 6D? Of course he knows about the Turbojet 6. After all, it is the power of the J-6. ??The first model that most of the 112 Factory employees of He Ming''s generation were responsible for after joining the work was the J-6 and its improved version. But it should have been discontinued for more than ten years. Ah...its the power of strong 5D. Chang Haonan explained. strong 5 He Ming scratched his scalp, with a hint of sadness in his tone: If you didnt tell me, I would have almost forgotten that there is such a plane... There have been so many good news in recent years, almost one after another. It always feels like those old models were a long time ago..." Strong 5 it is true that it has fallen behind the times in all aspects, and the last improved version that was equipped in batches for troops was indeed a version more than ten years ago. Chang Haonan agrees with He Mings view: Because the turbofan 9A went relatively smoothly and the J-H 7A will be put into production soon, the army did not want to strengthen the 5D model in the end. "However, the operation of the aviation power side has become relatively independent in the past two years, so we have retained the turbojet 6D model in the name of self-funding by the research and development unit. We should also be doing dual-engine installation tests at present, but the progress Its much faster than Taihangs, after all, its just a limited improvement. ?He Ming had a smile on his face and said in a relaxed tone: "How can the influence of such a small project be compared with that of Turbofan 10... A good start depends on influence. Even if Turbojet 6D progresses faster, for a newly independent deputy first-level central enterprise like Aviation Power, the symbolic significance is still there. The Turbofan 10 is still bigger. "no the same." Chang Haonan shook his head: "The influence of the turbojet 6D itself is indeed not great, but it is the first aeroengine project in our country that continued to develop and finalize the design even though the corresponding aircraft model has been cancelled. The symbolic significance of this is The aviation power group attaches great importance to it. After such an explanation, He Ming suddenly became enlightened. For someone who builds airplanes, whether the project succeeds or not, they are ultimately responsible for themselves. But for colleagues working in aviation development next door, it often happens that the research and development work is going smoothly, but the project fails or is repeated because the installed model is no longer available, or the positioning of the installed model changes. It is impossible to say that I am not feeling depressed. So in terms of "competing for reputation", the Turbojet 6D is even on the same level as the Turbofan 10 in a sense. ?Of course, as a target for others to win over, it is not easy for him to say much on this matter. So Mr. Chang ??Lin Jingtang, who had not spoken just now and was just listening to the conversation between the two, suddenly took advantage of this moment of silence to intervene: "You know the situation over there so clearly, you should be... going to work there?" ?Because Aerodynamics has not yet been formally established, and Chang Haonan has not yet obtained the key doctorate degree, the appointment of the chief planner has not yet been announced. ?But its not really a secret. So he nodded simply: I cant talk about being high, but I do have a position there. "After all...even if the Turbofan 10 has reached the end of research and development, it is only a model after all, and it has the nature of massing the whole country to conduct military training. In terms of the comprehensive development level of aviation development, our country is still far behind the aviation powers. gap." "From another perspective, if there is a gap, there is room for improvement..." Just as the three of them were talking to each other, there was already a sound of motor running in the workshop, followed by a harsh creaking sound. This is a sign that the die forging press has started to pressurize. ?The empty load experiment has been completed before, and whether the trial production task can be successful depends on the next few hours. One week later. ?When leaders from all walks of life from Beijing and the European delegation that had just finished their trip to Luzhou arrived in Jiangzhong, Chang Haonan had already prepared everything. When a big leader comes in person, the first thing to do is to visit. And they are visited separately. The members of the European delegation are knowledgeable, but as foreigners, they must not be allowed to run around and just stay in the forging workshop and watch the excitement. Domestic leaders and guests can leave as they please, but most of them are laymen who can only understand that this is a very large and powerful equipment, so they can just stay in the forging workshop and watch the excitement. ?Only for knowledgeable leaders, the seemingly ordinary screens and parameters in the control room are more attractive than the equipment itself. ??The chief raised his hand, pushed up his black-rimmed glasses, and asked Chang Haonan who was following him. "I remember, when this project was reported before, it was said to be improved on the 68,000-ton hydraulic press developed by Qinghua University in the 1980s?" Being able to ask this question right away obviously means that you have seen it before. Relevant technical information. Come prepared. Thats right. ?Chang Haonan took a deep breath and calmed down a little: Parts such as the hydraulic mechanism, correction system, electrical equipment, sensors and auxiliary equipment have adopted many of the results achieved that year, otherwise it would not have been possible to put into trial production in such a short time. After hearing this answer, the chief lowered his body slightly and looked at the drawings in front of him carefully: Before coming here this time, I took a look at the design of that forging press. Compared with the one you built, the difference seems to be quite big... Yes, the overall design of the previous machine was the orthogonal pretensioning frame originally invented by Academician Shen, which is a type of prestressed steel wire winding frame. Faced with a leader who asked such detailed questions, Chang Haonan had no choice but to brace himself to respond: "However, during the research and development process, we found that this kind of frame is more suitable for small and medium-sized die forging presses below 20,000 tons. If we want to apply it to the level of 75,000 tons, there are too many problems that need to be solved, and they are all It is a relatively weak technical field in our country. So, when determining the overall design plan, we finally chose a C-shaped plate structure rack. The idea is similar to the two Soviet equipment with the same 75,000 tons, but the design goes a step further, making the entire machine The equipment has improved significantly in terms of stability and predictability. In fact, Chang Haonan was not prepared to take the technical route of wire winding the frame from the beginning. It''s just that when he wrote the feasibility report, his influence was not as great as it is now. In order to improve the pass rate, he needed to find some projects with solid foundation in the past to endorse, so he wrote the research and development plan for the 68,000-ton hydraulic press. Go in. Now that the leaders see the drawings with different basic structures, they must understand what is going on. ??But Chang Haonan can''t directly say in front of others that I just wrote it casually to deceive you. In fact, I had other plans... ?That would be a bit too outrageous. ?Some things are just tacitly understood. We also developed the industrial control system of this equipment ourselves? The chief signaled to put down the drawings in front of him and looked at the operating parameters displayed on the computer screen again. Except for some consumables such as hydraulic oil and auxiliary equipment such as electronic components and sensors, the entire equipment from paper design to engineering implementation is completed by ourselves. Chang Haonan replied decisively: As for those parts that cannot be produced domestically for the time being, we are also actively contacting leading companies in related industries. We have held three demand matching meetings so far, striving to achieve localized replacement in the shortest possible time, or at least backup replacement. ?After a series of questions, the chief, who always maintained a serious smile, finally nodded slightly, obviously quite satisfied with the condition of the equipment. Looking at the data above, the trial production process should have reached the final step, right? He pointed to a curve on the computer screen, and without waiting for Chang Haonan or anyone else to answer, he continued: I can still understand the pressure curve of this working cylinder. Since its almost over, lets go down and wait for a while The big leader has already spoken, and others naturally have no choice but to follow suit. ?The group of people left the control room in a grand manner and went downstairs to the viewing platform that had been set up in the workshop. At about the same time. The visiting location for high-level delegations from EU countries is located on the other side of the factory building. ??After all, we are foreigners, so we still need to physically isolate ourselves on such important occasions. The first time Anne Colombo walked in here, she was surprised by the several-story-tall piece of equipment in front of her, and she had to raise her head deliberately to see the top. ?Although she is considered a technician, she has basically left the front-line research and development position. Secondly, even before leaving, she was mainly responsible for paper work, so she has never seen the similar equipment in France. I think... they might be really ready? ?Anne hesitantly confirmed to Bernard Ziegler next to her. As a veteran aircraft designer and aeronautical engineer, the latter will naturally not be deterred by this little fuss: You cant say that yet, He shook his head slightly: Just having one piece of equipment cant prove anything. There are many large-sized forgings in key locations on the fuselage, and the requirements for craftsmanship are even higher than the requirements for the equipment itself After we bought the 65,000-ton hydraulic press from the Soviet Union, it took nearly three years from the first successful start-up to the forging of large-size products that met the requirements. This was all with the help of Soviet technical personnel. guidance, and their device itself has not even been verified..." I wouldnt say theyre definitely not ready, but in any case, theres no reason to be too optimistic right now. But before I came in, I saw the promotional slogans they posted in the factory, and they all said that trial production would be held today? Thanks to the fact that both she and her husband have close business ties with China, Anne has also learned some Chinese over the years. Since this is Ziegler''s first time in China, it is impossible to understand what those square characters are, but he can also tell that this is the final preparation before production. ?However, in his experience, the gap between trial production and actual production... It''s still relatively big. Madam, generally speaking, some relatively simple or even symbolic workpieces will be selected for trial production, such as the simplest, a long strip or a semicircular steel plate. Ziegler looked at the hydraulic cylinder that had begun to slowly reset, and explained to Anne next to him: The structure of the aircraft bulkhead is much more complicated than the workpieces produced during trial production. It can be said that they are not the same thing at all..." ?While the two were chatting, the leaders and guests on the other side had also finished taking their seats, and a host began to introduce the general process of today''s trial production ceremony. In this era, there is no condition to configure automatic translation equipment, and it is impossible to provide an interpreter for every member of the delegation, so the content of the speech can only be briefly explained. Can you understand what the people on the stage are saying? Ziegler asked. I spoke a little fast, maybe it was to celebrate the 50th anniversary of the founding of their country or something Anne is not a Chinese major after all, and the information she can understand is not even as good as the simplified version just provided by the translator. ?But thats not important either. They will have a more detailed discussion session later, so if you have any questions, just ask them then. After some speeches and celebrations, the loading beam of the forging press finally rose slowly. ?The workpiece produced during trial production was slowly pulled out from between the upper and lower beams under the traction of two crane arms, and then lifted into the air. Look, just like I just said... Ziegler stopped abruptly mid-sentence. Because what he saw was not a steel plate. It is an obvious aircraft partition. It''s just not a passenger plane. It should be a fighter... (End of this chapter) Chapter 732 The French are stuck? Chapter 732 Are the French stuck? Not only Bernard Ziegler, who looked confident just now, but also Anne, who was sitting next to him and just watching the excitement, was stunned after seeing such a thing suddenly. First of all, it is slightly different from the "simple metal plate" mentioned earlier, and secondly, this thing is not close to any workpiece in her cognitive scope. Dr. Ziegler, what is this? ?She turned her head and hesitated for a moment, but finally asked. Although the forging process can produce tens of thousands of workpieces, considering that after they applied for a visit, China agreed without hesitation, so Anne reasonably speculated that the thing in front of her should still be related to aviation. right. The bulkhead of the aircraft fuselage...what else could it be? ??Ziegler was almost turned red by this question. After all, he had sworn a few minutes ago that the trial production process would be based on the simplest workpiece. ?As a result, when the blind box was opened, a big guy was taken out. ?But Anne didnt mean anything sarcastic: Butthis ?? She originally wanted to say that this thing looked different from the airplane partitions she had seen, but she quickly realized it after the initial mental shock: Ohso this should be a fighter jet Ziegler nodded, his eyes still fixed on the forging press and the workpiece that had been hoisted into the air: Yes, its the rear fuselage of a fighter jet, and it looks like the size of this aircraft is probably quite small While speaking, the host on the stage had already announced the success of the trial production of product zero of the die forging press, and a tsunami of cheers and applause burst out from the stands in China. ?Of course, strictly speaking, this is not actually the first workpiece produced by the die forging press. In the process of equipment development and process testing, there must be a large number of actual machine tests. ? It''s just that the semi-finished products or test products produced in those steps cannot be counted in the category of "products", and they will not have official production serial numbers. Although the EU delegation will certainly not be as excited as the Chinese themselves, the atmosphere has reached this point anyway, so they also applauded, and some even learned to shout in unfamiliar Chinese pronunciation. How many voices. Anne has never been exposed to military aircraft in her entire career, otherwise she would not have been able to recognize what this thing was just now, so she just asked confusedly while clapping along: Butit looks like there is still a big gap compared to the size of A320 and A330, right? Ziegler shook his head: Fighters naturally cannot compare in size with mainline airliners. The spanwise size of this workpiece...well, is the width. I visually measured it to be about 2.5 meters, which is slightly smaller than the A320. As for the height, the difference is even greater..." But on the other hand, passenger aircraft do not need to withstand as much overload as fighter jets during flight, so even if they are smaller, the structural strength of fighter jets may not be lower than that of small and medium-sized passenger aircraft In other words, do they really have the ability to produce large parts of the A320 airframe now? Anne patted it twice, then put down her palm and asked in a low voice. No one can be said to be competent until the product is certified. Ziegler replied: "However, at least judging from the size and purpose of this workpiece, they definitely have this potential, so after returning this time, I will consider arranging a round of production appraisal. If it can pass, we can start to gradually put part of the fuselage The production of structural parts will be transferred to China. ??Although his judgment just now was a bit wrong, Ziegler is not a hard-tongued person. ?Furthermore, as a senior leader of Airbus, the Asian assembly center is also good for him. At this point, he suddenly turned to look at Anne next to him, and at the same time changed the subject: Mrs. Colombo, your JAA cannot set up additional policy obstacles in this regard. ?In terms of industrial transfer, the interests of JAA as an industry management organization and Airbus Group as an enterprise are not completely consistent. Even though the original intention of the formers establishment was to improve the competitiveness of the latter, after so many years of development, it has already generated millions of workers of its own. ?For example, many JAA senior officials have party backgrounds in several major European countries, and naturally hope to keep the aviation industry within their own borders. However, this kind of interest relationship is not monolithic. ??If the forces behind these people are from the opposition, they will hope that companies will take away all the jobs. ?For example, the expansion of Airbus''s Toulouse factory has caught up with such a thing. ??The person in charge of the environmental assessment happens to be an opponent of the Midi-Pyrenees regional assembly. No matter how much money is spent, he is unwilling to deliver results to his political opponents. Otherwise, Airbus would not have been so active in the Asian assembly center. Anne waved her hands decisively: Dont worry, we have signed an agreement before to provide policy convenience for Chinas final assembly project. But obviously, such rhetoric alone cannot gain Ziegler''s trust. ??How can he still not know the virtues of the EU institutions? If he really wants to interfere with it, it will be difficult to restrain it with just a piece of agreement. Looking at the other party looking at her with a suspicious expression, Anne also knew that her organization was not very trustworthy. In fact, the reason why she was sent here to handle this package of projects was largely because she and her husband were highly bound to the interests of China, so they were more attentive to their work. Its just that this kind of thing must not be said in public, so Anne had to explain further: Moreover, its not just about the agreement. Revitalizing the euro is now a top priority for the EU, especially for several countries in the euro zone. The Chinese have a lot of cards in their hands right now, and no one will joke about it. Its better to do this Ziegler said and looked forward again. ??The workpiece has been placed on a special bracket at this time, and it looks like it is ready for viewing. Sure enough, several staff members soon came up and said in less fluent French and English that the equipment had been locked and invited members of the EU delegation to visit the production area. Compared to his colleagues around him, Ziegler had little interest in the majestic machine itself. After all, the die forging press itself is already a very mature industrial equipment, and the overall structure that can be seen at a glance from the outside is actually not very attractive There are only a few types in total, and even a lot of information is completely public. The truly valuable part lies in the design details of several core structural components, as well as the algorithms and operating logic of the corresponding industrial control system. Especially the latter. At present, the forging press in France is also in urgent need of CNC transformation. However, the Russians who built the equipment back then have lost a lot of technical data, so the progress of the transformation has not been optimistic. As for several other similar types of equipment in the world, they are all antiques that were put into use thirty or forty years ago. Only the Huaxia machine may have considered the application of CNC systems in the design stage and made targeted optimizations. The reference value is still full. Its a pity that the tour itinerary did not include the equipment operation room. Of course, this is also reasonable. After all, the main purpose of letting outsiders visit this kind of equipment is to demonstrate capabilities, or to show off. No one is stupid enough to reveal their special skills. Hence, Ziegler came almost directly to the newly produced partition frame. It was only then that he realized that the size he had just estimated was a bit too small. The width is not 2.5 meters, but more than 3 meters. ??And if only the fuselage frame has a width of 3 meters, then the entire aircraft... It should be a heavy fighter, right? Just when Ziegler leaned down to see if he could discern any clues, a slightly unfamiliar voice suddenly came out from behind him. is French. He turned around and found that the person who came was a half-lived face that he had some impression of but couldn''t remember clearly. But in short, it must be someone from this delegation. Well, judging from the size of the fuselage structural parts, the aircraft itself must be the size of an F15 or Su-27. ?Ziegler nodded, and then returned his attention to the workpiece again: I remember that China should have signed a contract with the Russians to produce Su-27 fighter jets in their country. From this point of view, it should be used there. "Speaking of which, the Chinese air force equipment has been updated very quickly in recent years. I remember that when they held an air show the year before last, they only showed an improved version of the second-generation fighter jet. Only three years have passed, and it is almost Produced its own third-generation heavy fighter..." ?The tone of this sentence reveals a bit of sourness. Although the Mirage 2000 can be considered a third-generation aircraft, it is obviously far behind its peers in terms of size and development potential. ?This also reminded Ziegler of the other party''s identity. ? It should be the head of a certain department of Dassault. But he cant remember exactly which department it is. "Isn''t your Rafale about to enter service soon? When I went to a meeting in March, I heard Dr. Fischeffer say that the first mass production model has begun to be manufactured. Although it is still a bit small, the technical level is definitely higher than ten Isnt the Su-27 from years ago stronger? ?Daniel Fischeffer, head of Airbus Combat Aviation Systems Division, is responsible for developing combat-related software control systems for the Rafale fighter jets. We are old colleagues with Ziegler. It was indeed like this before ?The opponent took two steps forward and stood side by side with Ziegler: But at the beginning of this month, General Electric suddenly withdrew its technical support for Snecma, so the situation is a bit difficult to say..." (End of this chapter) Chapter 733 Design finalization is not the end Chapter 733 Design finalization is not the end Snecma is the developer of the M88 engine used in the Rafale plan. The core engine used by the M88 is still the CFM56, and heavily refers to the design of the F110 and F404 engines. There are even quite a few parts directly operated by General Electric. ? Including CFM56 itself, although it is nominally jointly developed by Snecma and General Motors, in fact the two are not equal at all. ?For a long time, Rafale directly installed two F404s for flight testing. Although the M88 has theoretically entered mass production, the stability of model A is very poor. What is ready to be installed is Type B which has been reduced in thrust and improved in anti-asthma performance. It is still in the development stage. However, after GM withdraws its technical strength, it may be difficult to enter service with the aircraft in 2001 according to the original schedule. As for purchasing F404 Firstly, a sudden change of engine for a mass-produced aircraft will cause the already programmed flight control to need to be rewritten, and secondly... ??This wave of GM is obviously under the instruction of the big boss behind the scenes to retaliate for failing to bring down the euro and France''s betrayal of taking the lead in the Allied Forces operation. How could I sell you F404 casually? Otherwise Ziegler suddenly had a bold idea. ??That person was just coming over to chat. After all, GM''s withdrawal was not a secret. It was just that Ziegler rarely got involved in military aircraft projects, so the information in this regard was not updated fast enough. But now that I heard that he seemed to have a new idea, my eyes suddenly lit up: Do you have any alternatives? In fact, what Ziegler just thought was to simply go to the British to purchase the EJ200 that will be put into service soon. ??But after thinking about it, I feel that the nature of Dassault and Airbus is still different. The A330 can use the Trent 700, which does not mean that the Rafale can use the EJ200 ?At that time, five European countries jointly developed the EF2000. In the end, the French felt that those guys were really not good enough, so they finally independently developed the Rafale. ?Now you go back to the British to buy EJ200? Even if someone else is willing to sell it, I cant afford to lose face. So making this suggestion is asking for trouble. So he shook his head decisively: Nono, I just want to say that after all, Snecma has been involved in the engine field for many years, so there should be a solution. ?The other person shrugged: Thats right... thats what I said. At most, it can only reduce the thrust a little bit... In short, the air force model is easy to say, but in this case, the navy type will be a little more troublesome..." After some small talk, the man stretched out his hand towards Ziegler: Oliver Weili, Head of China Region, Dassault Aviation Civil Aircraft Division. Bernard Ziegler. ?In the European aviation community, Ziegler is not required to state his title in most cases. In fact, there are very few colleagues who don''t know him. It''s just a normal courtesy to say his name again. "Speaking of which, your company''s business volume in China...is so large that you need to set up a special region?" Ziegler gave up on trying to see anything from the partition with his naked eyes, and simply turned around to chat with Wei Li. Thats not true. The Huaxia Region is just a shelf at the moment. ? Dassault Civil Aircraft Department is mainly engaged in business jets and has basically no business overlap with Airbus, so the latter does not need to bluff, but directly denies: "Actually, so far, we have not sold the first aircraft in China. However, after the signing of the agreement last month, the higher-ups are very optimistic about the rapid development of China''s business jet market, so we plan to send a few people over in advance. Establish an office. at the same time. Before letting the European delegation enter the production area to visit, the leaders on the Chinese side had naturally seen it once. However, for the leader who came here in person this time, what he saw in the control room before was the focus, so he just walked around the equipment and took a few glances. At this time, he was already talking to the die forging press and Jiang Zhong. Several core responsible comrades here sat in a conference room together. The workpiece that was just trial-produced should be part of the domestic fuselage of Project 11? This session now belongs to the internal discussion after the ceremony. In theory, it is not a very serious session. It is usually just a casual chat about what we just saw and heard. However, the leaders present this time are of different levels, so we should not be too casual. Yes, Chief. Several people nearby looked at each other, and finally He Ming, who was in charge of the production and manufacturing aspects of Project 11, spoke: "The old models of Su-27 and J-11 used segmented casting and then welding in this part, but now they can be directly formed using the die forging process, which has a great impact on shortening the processing time and reducing the weight of the body structure. benefit." Is this the technology provided by Sukhoi, or... Leaders with technical backgrounds will ask very detailed questions about technology research and development. As soon as this question came up, He Ming immediately sat up straight: It is an improvement plan jointly finalized by us and Russian technicians within the framework of Project No. 11, and both parties share intellectual property rights! For a project that has only been introduced for three years, it is indeed quite rare to achieve this level of success. Therefore, after listening to the report, the chief also seemed very interested: Then this should be regarded as...the first time we have implemented technological feedback to Russia in Project No. 11? Thisstrictly speaking, it doesnt count ?He Ming subconsciously turned his head and glanced at Chang Haonan opposite: Previously, Mr. Chang and the comrades of the Electronics 14th Institute developed an airborne jamming system, which was also a reciprocal technology exchange with Russia in the name of aircraft ancillary equipment. The eyes of the leaders in the front row also turned to the latter. Chang Haonan, whose words suddenly fell on his head, quickly replied: Yes, it is actually the one installed on the JH-7. The Russian side wants to install it on their new tactical bomber platform. "We considered at that time that the potential of the JH-7 platform was really limited, so our military''s dedicated electronic warfare models would sooner or later be transferred to the J-11 series. Now letting Sukhoi try it first will also help us in subsequent research and development. We needed to make reference at that time, so we agreed to exchange this technology for an ion coating technology production line. The fact that the Turbofan 10 prototype was able to be produced so quickly was also due to this production line. "but" Speaking of this, Chang Haonan changed the subject: "This matter is only operated in the name of Project 11 for convenience, but in fact it has little to do with the aircraft itself, so strictly speaking, this aircraft structure upgrade carried out by Mr. He and his team can be regarded as a real aircraft for the first time. ??Today''s gift itself has already attracted him a lot of attention, so there is no need to continue to steal the limelight in this session. Do not eat anything alone. As expected, the chiefs attention returned to He Ming: I heard a report from Comrade Li Liangxin before, saying that this years National Day military parade will have an aerial formation of domestic third-generation fighter jets. Will the aircraft in it use the airframe components made today? Thats not the case. He Ming slowly shook his head: We have provided a technical demonstrator aircraft and two first-stage prototype aircraft to the 9910 project. However, in order to ensure the stability of the aircraft, they have been tested for a relatively long time and have been confirmed to have no problems. Although the J-11B prototype is expected to be fully assembled before the National Day, it is a brand-new structure with brand-new power, so it is not easy to go directly to the military parade without enough time for stability testing. One good thing about leaders who understand technology is that they respect objective laws, so they easily accept such explanations. Comrade He Ming just talked about a new impetus. He looked at Chang Haonan again: Comrade Chang Haonan, in just over a month, the Aviation Power Group Company will be officially established. As the specially appointed chief planner, do you have any specific ideas for the business development of the new group? Hearing this question, He Ming opposite and Lin Jingtang next to him trembled visibly. ??If it werent for the fact that there were so many leaders on this occasion, Im afraid they would all have to shout out ?Chang Haonan did say before that he had found a position in the newly established Aviation Development Group. But the position you are talking about directly has the word "general" in it? ? And this is a proper second-level central enterprise, the chief planner, if he is a member of the leadership team... Level is a bit scary. ?However, Chang Haonans attention will definitely not be on these two people at this time. The big leader has spoken, and he must take this opportunity to shake out the plan in his mind: After the establishment of the group, of course, the first priority is to finalize the design of several new types of engines, including the Turbofan 10. After all, it is the first battle after the formation of a separate aviation power force. As for the next step, I have mainly planned two key directions. "The first is to further utilize the training opportunities of the Turbofan 10 project, and allow comrades from various units who have participated in the research and development of the Turbofan 10 to return to their posts and conduct necessary training on some of our country''s existing engines with older technology but large installed capacity. Technology upgrade. "On the other hand, for the Turbofan 10 model itself, the design finalization is by no means the end, but a new starting point. Currently, this model is still subject to several key processes, resulting in relatively limited production capacity, which may even affect In the future, my country will produce two types of third-generation fighter jets, so I personally plan to continue to lead the team to tackle the problems of insufficient production efficiency and yield rate! (End of this chapter) Chapter 734 Got a spot Chapter 734 Got a quota Even after it is spun off from the Aviation Industry Corporation of China, the newly established Aerospace Power Group will be a behemoth with more than six-digit employees. For such a large enterprise, especially a newly established one, a formal development plan that needs to be kept on file can be considered concise and comprehensive if it is not written in 100,000 words. However, the secretary will naturally type out the long speech word by word. As the chief planner, Chang Haonan is mainly responsible for controlling the general direction. After all, in terms of scientific research work, he is still in his most youthful and powerful stage. , It is impossible to really break away from front-line business positions. ??Furthermore, this occasion is just a symposium after all, and it is impossible to really let him read the report for several hours alone. Therefore, Chang Haonan chose to focus on the big and let go of the small, and simply talked about the most critical part. Judging from the chiefs reaction, the effect is indeed pretty good. Okay, very good. ?The other party waved his arms in mid-air, looking very excited: "I remember, about ten years ago, in the late 1980s, I went to inspect the 624 Institute in Fucheng. At that time, Comrade Liu Zhenxiang was the director. I remember clearly that they were solving the inlet flow field distortion of the turbojet 13A engine. Serious problem." ?Such professional terms are nothing to technicians, but as a leader, Chang Haonan was a little surprised to be able to remember them for so many years. ? In addition to his background in science and engineering, he probably had something to do with the fact that he had just been cheated on the "Peace Model" project. The August 3rd Project had an internal slogan of "Revenge for the Model of Peace", which was also shouted at that time. Sure enough, after a brief pause, the other party continued: "At that time, our military-technical cooperation with the United States broke down, and we needed to build new aircraft by ourselves. The biggest disadvantage of building aircraft by ourselves was power, so I asked Liu Zhenxiang when we would catch up with the international mainstream. level, the answer he gave me at the time was that it would take about twenty years, that is, by the end of the first decade of the next century, to produce products whose performance reaches the equivalent level of the same era. " "The results now appear to be much more optimistic than Comrade Zhenxiang''s prediction... I have seen the target performance of the Turbofan 10 in the report submitted by the Science and Technology Commission before, and it is already comparable to the mainstream international turbofan engines. Compared to that? Chang Haonan did a little calculation and said that Liu Zhenxiang''s estimate back then was actually quite accurate. Because if there had not been such a thing as rebirth, according to the original development trajectory, the Turbofan 10 would have gone through three ups and downs before it was officially mass-produced around 2010 and installed on the second batch of J-11Bs. ??Although there were still some problems with the stability and failure intervals of the early batches, they did catch up with the qualification level at that time. Its just that now the world line has been disrupted by the eight-level strong wind he set off, so to outsiders, Liu Zhenxiangs estimate back then seemed much more conservative. ?However, when facing questions from leaders, you still need to use some language skills. First of all, you must recognize the achievements you have already achieved: In terms of the performance indicators of the turbofan 10 alone, it has indeed reached the level of the third and a half generations of American and Russian engines. It also has greater upgrade potential and has indeed caught up with the first echelon. Then there is a roundabout way to win further support: "However, Chief, our foundation is still relatively weak after all. Generally speaking, the Turbofan 10 is currently in a unique state, including its core engine. Although it is very advanced, it has not been fed back into engines for other uses. " Chang Haonan changed the topic and started to make misery: "So, compared with the United States, Britain, Russia and other pioneering countries in the aviation field, the biggest problem faced by China is that the aviation engine pedigree is not complete enough, especially in terms of large ducted turbofans, turboprops and turboshaft engines, which are almost blank. " "Currently, the only ones that can reach the technical level of the 1990s are the Haojing Engine Group, which is domestically producing the D436T1 engine used in the C808 passenger aircraft in a form similar to Project 11, and the Jianning Engine Group, which is based on the legal Ahaye 1C Improvements were made to produce the turboshaft 8 engines used in the Z-9 series helicopters, and the rest... are limited improvements to the old models from the 1950s and 1960s. ??This is a slap in the face. The leaders are all the best among men, so they naturally understand the implication: Our little comrade hasnt officially taken up his post yet, and he has started asking for policies and support from his new employer... The chief looked around and said in a half-joking tone. A happy atmosphere suddenly filled the conference room. After the atmosphere calmed down again, the other party looked at Chang Haonan again: Comrade Haonan, dont worry about this. Since we have approved the independent split of the Aerospace Power Group, we will definitely support your work and provide reasonable conveniences in terms of project establishment, personnel and funding. When you say this, it is equivalent to a promise. ?Of course, when a leader expresses his position, he must leave three points at the end: "However, don''t be too impatient. It is a good thing for young comrades to be motivated and not satisfied with their immediate results. However, as you said just now, our country''s foundation is weak and there are too many areas that need to be made up for, even if it is No matter how capable you are, its impossible for you to catch up with the Premier League and the United States in all aspects in three to five years, so dont put too much pressure on yourself. Scientific and technological development, or in other words, the development of comprehensive national strength, is not a sprint, but a marathon. As he spoke, the chief straightened his suit jacket and stood up from the sofa. It was obvious that he was going to summarize the meeting: "It tests whether we can stick to the right direction of development for a long time. In this regard, I have firm confidence in China''s future!" "..." ?After this massive gift event, Chang Haonan stayed in Jiangzhong until the end of May. Even now, the workpieces that need to be produced by this heavy-duty die forging press are far more than the rear bulkhead of the J-11B fuselage. ?According to the plan, the C808 currently being produced in Shanghai will also start from the second batch and gradually increase the localization rate of core structural parts. And the high-power hydropower unit that first gave him the idea of ??developing a die forging press. Each of them is a project with a small output, but requires special process optimization. ?Jiang Zhongs own R&D department was gradually established after Lin Jingtang joined the project team, and it is slightly inferior in terms of capabilities and experience. ?Although it is impossible to handle everything personally, you can still push as much as you can. ?Before Chang Haonan was about to return to the capital, Yan Yongnian came to him specifically and handed over a bound document. Mr. Chang, this is the progress report of the die forging press project, please take a look. From trial production to formal production, it will take as short as one or two years and as long as three to five years. The life monitoring and automatic compensation system is mainly developed together with the forging press. There is definitely no way to see the effect on a new piece of equipment. However, the successful completion of trial production is the most important project node for the research and development of the die forging press itself. In a sense, this progress report is equivalent to a final report. The subsequent work will also gradually be transferred from the R&D team in charge of Chang Haonan to within Jiangzhong Group. Except for the fact that Lin Jingtang, as an expert in forging technology, will still stay here for a period of time, the main leaders including Yan Yongnian and Chang Haonan will also withdraw one after another. The entire project team will still maintain a paper presence, but most members will be able to turn their attention to other tasks at hand. If nothing particularly outrageous happens, this state will continue until the equipment is officially delivered. ?Chang Haonan stopped packing his things and took the thick report. This kind of thing naturally cannot be something that has just started to be improvised recently, but has been written as it goes during the development process. Therefore, Chang Haonan has actually checked most of the content. ??The main thing added this time is the summary in the last part. ?Especially because this National Day gift was extremely successful, the leader even issued the slogan "Learn from Jiangzhong Group and the military industry scientific research front" at the end, which is definitely going to be used at the end. By the way, Professor Yan. Chang Haonan said and sat back on the chair: Before the director left that day, he asked me if there were any other problems that needed to be solved by the comrades in the project team. I mentioned in a subtle way that I hoped to go to the capital to watch the 50th National Day ceremony in person. "Um?" Hearing this, Yan Yongnian suddenly became energetic: "Then what?" Of course it passed. Chang Haonan replied with a smile: This morning the National Day 50th Anniversary Celebration Office contacted me and said that they could apply for six places among the project team members, but I took a look and they were all in slightly remote viewing areas. For Yan Yongnian, being able to go to the scene was already very satisfying. He couldnt be more picky. He immediately stood up and held Chang Haonans hand with both hands: "It doesn''t matter if it''s remote, as long as people can go there, thank you very much, Mr. Chang..." Its okay, its not a big deal. ?Chang Haonan waved his hands all over the ground: Furthermore, I have poached two of Professor Yans most popular disciples before, so this spot can be regarded as a gift in return (End of this chapter) Chapter 735 System level, LV3! Chapter 735 System level, LV3! On the morning of Chang Haonan''s return to the capital, Jiang Zhong arranged a small ceremony. Certainly not a farewell ceremony. ?Although the die forging press itself will most likely not have any problems, Chang Haonan will inevitably come to deal with them again when he takes over major projects. What''s more, Jiang Zhong is now a company managed by the Equipment Industry Department. Everyone is considered a family and there is nothing to give away. It was the unveiling ceremony of the bust of Academician Shen Hong, as Chang Haonan and Yan Yongnian said before. Comparing to common bronze or stone statues, the body of this sculpture called "Cast" is made of titanium-aluminum alloy, and the metal used is re-cast from the waste materials in the production of No. 0 workpieces. The bust stands on a marble base about one person tall, carved in the shape of a forging press, facing the direction of the production workshop. The front of the base is engraved with Academician Shen Hongs name, year of birth and death, and major life events. As the countdown by the host of the ceremony ended, Chang Haonan and Yan Yongnian, one on the left and one on the right, personally unveiled the red cloth covering it. Although Academician Shen was not able to see the day when the heavy-duty forging press was put into production, this can be regarded as settling a worry for his old man. Amidst the warm applause, Chang Haonan, who was standing in the middle of the podium, said to Yan Yongnian next to him. Anyway, those of us from the old Ministry of Machinery Industry still have to thank you for this matter. Yan Yongnians eyes never moved away from the statue: "Without this project, I''m afraid not only Academician Shen, but also some of us would have regretted it for the rest of our lives..." Heavy-duty hydraulic presses are indispensable equipment for the production of large forgings. With the development of our countrys industrial capabilities and national economy, the demand in this area will emerge sooner or later. ?Chang Haonan put down his palms that were already a little red: I just followed the trend of the times in advance. Although I did do some work, the implementation of the entire project cannot be regarded as my personal credit. The Science and Technology Commission, the Equipment Industry Department, and the old Ministry of Machinery Industry all played a certain role in it. This is our collective victory! Yan Yongnian opened his mouth, as if he wanted to say something more, but in the end he didn''t say anything. He just raised his head slightly and blinked. By the way, Mr. Chang. ?After a while, Yan Yongnian finally recovered whether he was feeling emotional or sad: Do you need me to prepare another project progress report for you? "Um?" Chang Haonan was stunned for a moment and had no idea what he meant: What would I do with two copies of this? Yan Yongnian was also stunned: Of course it will be part of the presentation of results during your graduation defense... If I remember correctly, you should be graduating with a Ph.D. soon, right? When he said this, he felt a little outrageous. But if I think about it carefully, I dont quite understand what is the difference between a person who has already graduated with a PhD at the age of 24, and a person who has clearly taken the lead in completing several major national projects but has not yet graduated with a PhD. Even more outrageous "ah" Chang Haonan suddenly realized: Is this... He thought for a moment and finally shook his head: Forget it, this one is too thick. The review team will probably have to look at it for a whole day to finish it... I just graduated with a Ph.D., I can just pick out a few things from it. Even though Yan Yongnian has obtained his doctorate many years ago, as a professor, he still has to participate in student defense work every year. When I heard Chang Haonans answer, I didnt know how to proceed... ?But if you think about it carefully, there doesn''t seem to be anything wrong with it. ??The things that Chang Haonan has done in the past two years, if broken down, would be enough for dozens of Ph.D.s to graduate. Its really just a matter of time. Thinking of this, Yan Yongnian suddenly became curious: Speaking of which, Mr. Chang, what is the topic of your PhD graduation? After all, the fields that the other party is involved in are too broad. From fluid mechanics to structural mechanics, to surface physics, control theory, electronic information engineering, materials science All of them have left traces that are commendable. I just dont know which field can be so lucky to be chosen as the research direction for Ph.D. graduation by Mr. Chang. Hmm"Space-time separation method for solving nonlinear partial differential equations"." ?For a doctoral thesis, this title is even a bit short. ?However, when it comes to things like essays, the fewer the words, the greater the problem. This should be considered...a paper in the field of applied mathematics? ?Yan Yongnian had already thought of many possibilities when he just asked the question. But I didnt expect it to be like this. After all, fluid mechanics and control theory can always be directly connected with aircraft design. But applied mathematics The relationship is always more distant. In fact, if you leave it 20 years later, it is normal that there is no relationship between the professional name and the content of the research. ?However, at the turn of the century, the interdisciplinary research model had not yet emerged. Therefore, as a PhD student in aircraft design, Chang Haonan wrote a mathematics thesis as the content of his graduation defense, which is indeed a bit shocking. If nothing else, someone who writes this kind of paper should at least be awarded the title of Doctor of Science. The calculation example part will also involve some application-level content, but in general it is closer to mathematics. Chang Haonan just nodded as usual: Ph.D. only means that a person has the ability to provide original theories or application results, but it does not mean that it must be completely related to the major. "Furthermore, this algorithm theory was gradually improved by me in the process of researching and optimizing the TORC Multiphysics software. Now almost the entire Chinese aviation industry system is using this software to do numerical simulations of aerodynamics and structural mechanics. I have to say If so, there is still some connection..." Yan Yongnian took a deep breath and nodded slowly: To be honest, Im kind of looking forward to it. After passing the defense, I will definitely read your article if I have the opportunity. ?However, Chang Haonan smiled and shook his head: My defense and thesis will definitely not be made public immediately, including scientific research results, which are also given in the form of national defense reports and cannot be seen outside..." Its really ?That afternoon, Chang Haonan finally ended his more than one month-long mission in Jiangcheng and rushed back to the capital with a series of results. Although Chang Haonan''s graduation defense was held separately, in order to make up for the degree awarding time, it was still scheduled for early June like others. Therefore, after returning to the capital, his first thing was not to go back to school, but to submit the project A progress report was submitted to the Science and Technology Commission. I have read the report on the day the chief went to Jiangtang for inspection. He spoke very highly of you, or in other words, you. Ding Gaoheng sat behind his desk, leisurely flipping through the report page by page, and said in a relaxed tone: Although there is no direct call to learn from you personally, that statement is actually pretty much the same. Its a good thing they didnt push me out. ?Chang Haonan is now at home in Ding Gaoheng''s office, minding his own business and sitting on the sofa next to him: I have a lot of hats on my head now. After graduation, I will also hold a teaching position. Having less attention that has nothing to do with business will allow me to save more energy. Its good to have this kind of mentality. Ding Gaoheng''s hand turned the pages gradually faster. In fact, the content of the report has already been reviewed by an expert group in Jiangcheng. Today is just a formality, asking Chang Haonan, the project leader, and Ding Gaoheng, the top leader of the Science and Technology Commission, to sign it and keep it on file. ?Hence, it didnt take long for him to sign his name directly next to Chang Haonans signature on the last page. ?At this moment, Chang Haonan, who was resting on the sofa with his eyes closed, suddenly felt a heat wave surge in his brain, like a CPU that suddenly started working at a high frequency. Fortunately, this feeling was fleeting, otherwise he would even wonder whether he needed additional physical means to cool down... After everything returned to normal, the system panel that he had not seen for a long time reappeared in his mind: Scientific Research Points: 9000 Theoretical level: LV3 (20000/100000) Engineering experience: LV3 (50000/100000) Management ability: LV3 (75000/100000) Comprehensive ability: LV3 Projects in progress: 1 Projects that can be carried out: 3 Obviously, in the system''s judgment, at this step, the entire die forging press project is considered completed. Maybe its because when setting up the project, Chang Haonans ideas were still relatively rough, and the automatic error compensation algorithm that required long-term verification was only added later. The result was a hit and miss, saving several years of waiting. The completion of such an influential project will naturally give a huge amount of three experiences. As a result, the system was upgraded to level 3. Based on the last upgrade of the system from level 1 to level 2, the most obvious benefit of upgrading the system is that it adds another project that can be carried out in parallel. However, the number of parallel tasks from 1 to 2 is a qualitative change, but from 2 to 3 it is not so important. After all, even if there is a system, it is unlikely that Chang Haonan can really take care of three highly complex projects at the same time. The body cannot bear it. Whats more important is the improvement in the upper limit of his personal abilities after leveling up This means that many projects that were just ideas but could not be implemented in the past are likely to have a chance to be implemented. (End of this chapter) Chapter 736 Challenge Step 15 of the NS Equation Chapter 736 Challenging Step 1.5 of the N-S Equation After signing, Ding Gaoheng put the pen back into the pen holder. When he raised his head again, he only saw Chang Haonan leaning on the sofa, his eyes looking at the ceiling distractedly, as if he was in a state of wandering mind. ?Looking at this posture, he seemed to be thinking, so he was not in a hurry, just pushed the report to the corner of his desk, and then started to deal with other official duties. ?So, such a strange scene appeared in the office of the director of the Science and Technology Commission. Ding Gaoheng was crouching on the desk writing furiously, getting up from time to time to refill himself a glass of water. On the sofa not far away, there was a young man sitting with his eyes looking at the sky... ?That kind of relaxed state, if I didn''t know it, I would think there was some special relationship between the two people... Fortunately, this afternoon was unusually peaceful. It was not until he was about to get off work that Chang Haonan broke away from his thoughts. Xiao Chang? Seeing that he finally moved, Ding Gaoheng also breathed a sigh of relief. OhDirector DingI suddenly had some inspiration just now, and Im thinking more clearly ?Chang Haonan sat up straight, and at the same time, almost subconsciously, he raised his hand and stroked his forehead. turned out to be covered in sweat. I''m really sweating now. ??The air conditioner is naturally turned on in the office, but after all, Ding Gaoheng is old and not as physically strong as young people, so it is impossible to turn on the lowest temperature and blow the air. Hence, the temperature in the room was already a bit high for Chang Haonan. Coupled with the high load of thinking just now, it did put a lot of load on the body temperature regulation mechanism. Fortunately, the system should have the ability to automatically adjust. Except for the first moment, the "computing power" has been turned up to a level that Chang Haonan can accept. Otherwise, Im afraid its going to be Im on fire!. ?But this also gave Chang Haonan a new idea ??If he really soaked in a bathtub of ice cubes, would his thinking efficiency be further improved... "I saw it, so I didn''t call you just now because I was afraid of disturbing your train of thought." Ding Gaoheng obviously saw the sweat on Chang Haonan''s face. He stood up and put a roll of paper on the coffee table: Wipe your sweat, the weather is already a bit hot at the end of May... Thank you, Director Ding. ?Chang Haonan said a simple polite word, then pulled off a few pieces of paper, folded them together and began to wipe the sweat. What were you thinking about just now, so lost in thought? Ding Gaoheng returned to his seat and asked casually while holding the teacup and blowing gently. Wellits about the graduation thesis. "ah?" Ding Gaoheng on the other side stopped fiddling with the lid of the cup and raised his head in shock: You still have to worry about your graduation thesis? In his opinion, Chang Haonan is now like a big father to Jinghang. It is too late to be a Bodhisattva, so how could he interfere with graduation matters. Furthermore, given the current situation, if we target Chang Haonan, we are targeting him, Ding Gaoheng. Going even further, we are targeting... There should be no one who is so short-sighted. Not the graduation thesis itself. Chang Haonan shook his head and quickly explained: I just suddenly came up with some extended research from the content of my paper, about using the spatial averaging principle to modify the N-S equation..." In fact, Ding Gaoheng just asked casually out of curiosity at first. After all, since the two people have known each other for so long, he has never seen the other person thinking for so long. There is no expectation of an in-depth discussion on this topic. But the moment Chang Haonan mentioned the N-S equation in his answer, he immediately became interested: Have you thought of a new numerical solution method? For anyone who studies fluids in any field, the N-S equation is a mountain that cannot be bypassed. Since current mathematical tools cannot find strict analytical solutions, how to obtain numerical solutions to specific problems more accurately and efficiently has become the focus of applied mathematicians and physicists from all over the world. It can be said that the TORC Multiphysics software has achieved an era-leading lead in the field of fluid calculations, largely due to the breakthroughs made by Chang Haonan in the numerical solution level at that time. Although the mathematical theory part is a public achievement, at the application level, even if others compare it with the source code, it will be difficult for others to keep up with the pace of optimization and iteration of the Torch Group itself. What''s more, even the software of the professional enhanced version is not public, let alone the source code. And if it happens again at this time... Ding Gaoheng didnt dare to think about what would happen. ?However, Chang Haonans response was to shake his head: Not quite ?This made Ding Gaoheng''s excitement subside a little. ?But think about it, a breakthrough of that level can only happen once in a few years or even more than ten years, which is already extraordinary. ??Moreover, even if it is only further modified at the level of the original algorithm, the calculation efficiency can be significantly improved... I believe that the inertial manifold of the two-dimensional N-S equation exists universally. ?Chang Haonan''s second sentence choked back the words that had already reached Ding Gaoheng''s lips. "What?" The latters mind couldnt keep up for a while. The inertial manifold of the two-dimensional N-S equation may exist universally. ?Chang Haonan repeated it. But it is obvious that Ding Gaoheng did not understand the Chinese characters clearly, but he heard each word, but did not understand the meaning of the words. ?So he had to explain: Simply put, because there is an affinity relationship between fast variables and slow variables, directly ignoring the fast variables and retaining the slow variables will lead to the loss of a lot of dynamic information in the process of dimensionality reduction of the nonlinear partial differential equation system. . Including my current research, the function of all nonlinear dimensionality reduction methods is to improve the modeling accuracy without increasing the dimensionality of the reduced system, to compensate for part of the lost information. " "The inertial manifold is one of them, but because in the inertial manifold, the ignored fast variables can be represented by slow variables, the calculation accuracy and efficiency are much higher than the traditional methods in the past... But for most Nonlinear partial differential equations, including N-S equations of course, are difficult to find corresponding inertial manifolds..." "So we, uh...that is, the TORC Multiphysics software currently uses two methods. One is to assume that the fast variable is in a pseudo-stable state, so that the stable flow pattern can easily obtain an approximate inertial flow pattern by ignoring the dynamic information of the fast variable; the second is to consider By deleting the dynamic information lost due to fast variables, and using the Euler method to calculate the integral of the deleted fast variables in a short time interval, an approximate inertia manifold can still be obtained..." However, both methods essentially superimpose approximation on the basis of approximation, so although the results are indeed better than the traditional method, they have returned to the category of pure application and are not very helpful in advancing theoretical research... " ? Ding Gaoheng is not a mathematician, not to mention what Chang Haonan said is not even applied mathematics, but is already a bit towards the theoretical part, so after listening to it, he just felt... This simply speaking is not simple. ?However, although I dont fully understand the specific content, the general meaning is still understandable: Soyou want toobtain the global solution of the N-S equation? ?This idea is a bit too unrestrained ??If the N-S equation is really completely cracked, it will basically be equivalent to reshaping the entire aerospace industry from its roots. What kind of wind tunnel, what kind of aerodynamic verification machine... Not necessary at all. Just put it into prototype and then put it into production. Ah...no, no, no, its not that exaggerated. Chang Haonan quickly waved his hand: Although in terms of direction, it can indeed be said that it has taken a step towards solving the N-S equation, but the distance from truly obtaining an analytical solution can only be regarded as the first step in the long march of thousands of miles..." Speaking of this, he hesitated again: Its not just the first step. After all, its a step forward on the basis of pure numerical solution. But the second step is a bit...strictly speaking, its step 1.5..." (End of this chapter) Chapter 737 Graduation defense with outrageous lineup Chapter 737 Graduation defense with outrageous lineup ?Chang Haonans defense meeting was not arranged within Beijing Hang University. Instead, we directly found a conference room in Torch Group for the meeting. Because what is going to happen in a while is far more than just a thesis defense. ?Performing a doctoral defense for the general manager of another company on someone else''s territory is probably relatively rare even in the degree-granting process around the world. ?But compared with Chang Haonan''s own situation, it seems not that rare... Xiao Chang, long time no see. ??Tang Lintian, who has been promoted to acting principal at a speed close to the triple jump, stopped Chang Haonan at the door of the building: After today, I wont have the chance to call you that again. Principal Tang, I just graduated, there are still many opportunities to meet in the future... ?Chang Haonan turned his head and saw three other people behind him. ?Du Yishan and Liu Zhenxiang are naturally among them. But the person standing at the end is an unfamiliar face. He should be a teacher from a foreign school invited here according to the requirements of the review mechanism. As for Fang Zhen, who was a review expert during Chang Haonans undergraduate defense... Considering that he currently works in the Torch Group and is considered a subordinate of the former, according to the principle of avoidance, it is impossible to participate in any case. Perhaps seeing Chang Haonans slightly confused look, Du Yishan motioned to everyone to make way for that person, and then introduced: Xiao Chang, this is Professor Yuan Xiangya, the deputy dean of the Institute of Mathematics and Systems Science of the Chinese Academy of Sciences. Hearing this name, Chang Haonan suddenly understood. ??Although the other party''s face was relatively unfamiliar, Chang Haonan had heard of Yuan Xiangya''s name. In fact, if you want to study the theory of nonlinear programming algorithms, it is basically impossible to avoid him. In 1985, 25-year-old Yuan Xiangya jointly proved the "1/2 conjecture" of the truncated conjugate gradient method while studying for his PhD, which was considered one of the important achievements in nonlinear programming algorithm theory throughout the 1980s. In addition, he also systematically proposed a series of new algorithms using a combination of the trust region method and the traditional line search method to solve nonlinear planning problems. Some people have even begun to call this series of results "Yuan''s Lemma". Although this term has not yet been widely accepted, judging from the current momentum, it will be a matter of time. Although a lemma in a non-explicit field of science is definitely not as influential and status as those famous theorems, there is no doubt that being able to put one''s name on it is definitely considered to be a leader in the field of applied mathematics. peak. In short, he is also a player who is comparable to cheating. ?Chang Haonan took two steps forward and shook hands with the other party: Professor Yuan, its a great honor for you to come and participate in my graduation defense. Your research methods and results have inspired me a lot during my previous research. Yuan Xiangya is less than forty years old this year. Standing among several people, he is closer to Chang Haonan''s age. Learn from each other, learn from each other. ?The other party smiled modestly: TORCHMultiphysics software, and of course the algorithm behind the software, can be said to be the greatest achievement in the field of computational mathematics at the application level in recent years. If nothing else, those of us who are engaged in applied mathematics can speak very forcefully when we go to meetings now..." Although this statement is a bit exaggerated, the atmosphere in the corridor became relaxed because of this. Actually, if your defense is held in public, I will definitely ask half of my students to come and participate. Not all? Du Yishan, who was standing next to him, interrupted and asked jokingly. But Yuan Xiangya shook his head very solemnly: Not all, because the other half wont understand even if they come over, so theres no need to waste time. Its better to leave the position to those who need it more ?After saying this, even Chang Haonan himself almost laughed out loud. But considering that I am still a student today, I finally held back. After some pleasantries, Chang Haonan was ready to take everyone upstairs. It was only then that he suddenly realized that there were only four people here. Teacher Du, the graduation review should have at least five review members. Are we... still missing one? Dont worry, its almost there. Du Yishan raised his wrist and looked at his watch: The old man is quite old, so he was picked up by a special car, so he didnt come with us. Older You must know that Du Yishan is already 70 years old. The only people he can say are old are those from the early founding generation of the People''s Republic of China... Just when he started to guess who the visitor might be, he saw a minibus slowly driving into the company compound from the direction of the gate, then making a half circle and driving straight from the side vehicle ramp to where he was waiting. in front of several people. The car door opened, and naturally the first ones to get out were a few staff members. But soon, a gray-haired old man wearing a Chinese tunic suit appeared at the door of the car. ? ?Chang Haonan was stunned for a moment. No introduction is needed at all. He has seen it countless times on television and in the media. Mr. Qian ?Several people rushed to greet him. ?In front of this master of aerodynamics in applied mechanics and the founder of engineering cybernetics, no matter whether he is in his seventies, thirty or twenty, he is still a junior. After shaking hands one by one, Mr. Qian finally came to Chang Haonan: "A few years ago, I heard the junior students at the Academy of Sciences talking about you, and this time I saw your true form." Although he is already 90 years old, Mr. Qian still speaks and thinks relatively smoothly, and his physique does not appear to be too old. "Xiao Chang, Mr. Qian took the initiative to apply to be the chairman of your defense committee this time." After Mr. Qian finished speaking, Du Yishan added next to him. Thank you Mr. Qian! ?In this situation, Chang Haonan really has nothing else to say: Its a bit windy outside, lets go in and chat first In fact, the composition of Chang Haonans defense committee is already very obvious. The so-called review mainly examines whether the research results that match the requirements of a "doctoral degree" have been produced during the degree study. But this is for ordinary people. ??Chan Haonans achievements during his Ph.D. studies have been placed in factories or flown to the sky, and there is no need to express them in papers. ?Therefore, the focus of this defense committee is not on the defense itself, but on the fact that the members must have sufficient influence Not everyone is qualified to confer a degree to Chang Haonan. ??If an ordinary doctoral supervisor came and signed Chang Haonan''s review opinion, wouldn''t his hands shake? Besides, the layout is not enough. As for the current lineup, Du Yishan and Qian Lao, two academicians of both academies, Liu Zhenxiang, the first academician in the aviation power industry, Tang Lintian, the president of Beijing Airlines, who is probably not far away from being an academician, and one of the top young scholars in the field of applied mathematics in China, who is also not far away from being an academician. Yuan Xiangya, who is barely qualified... It is basically the strongest group that the Chinese academic community can pull out. Half an hour later, Chang Haonan, dressed in formal attire, walked behind the podium. Other staff have been excluded from this meeting room. Therefore, there were only Chang Haonan standing, five big guys sitting, and a trembling defense secretary in the room. ??If it were anyone else, facing such a luxurious lineup, I am afraid that he might not even be able to stand firm. ?However, Chang Haonan has seen a lot after all. Although he was a little stressed when facing Mr. Qian at first, he quickly adjusted his mood. Thank you all teachers for coming today and listening to my report on some of the results I have achieved during the two years of my PhD studies. "The content of my speech will be divided into two parts. One is a new algorithm for solving nonlinear partial differential equations using the space-time separation method. The other is the calculation tool TORCH Multiphysics that is expanded based on this algorithm and the use of this tool. Calculation examples to solve practical problems. Every teacher should have read and used the content of my paper, as well as the TORC Multiphysics software itself. Therefore, I will omit some less important steps to save space and time..." First of all, I need to introduce a principal component analysis method for nonlinear autonomous dynamic systems... In the 1990s, laser pointers had not yet been widely used in display and teaching fields, so Chang Haonan still held a traditional telescopic pointer in his hand and walked around the curtain as he introduced: "Suppose there is a high-dimensional nonlinear ordinary differential equation autonomous system x(t)=f(x(t), t), where the state x(t)=[x1(t), x2(t)xn(t)] ^T, this equation represents the dynamic behavior of state x(t) in n-dimensional state space without system input..." From an academic level, the algorithm construction in the first one-third of the article is actually the core content, because it is the cornerstone of all subsequent work. As a listener, this part of the content process also requires the most energy. ??If this is a normal review, then if you want to find fault, it will most likely be in this part. But things are different today. ??TORCHMultiphysics'' powerful performance has been recognized by peers around the world. ??If you find any problems with the algorithm constructed by Chang Haonan... ?Then its best to look for your own problems first In fact, Yuan Xiangya, who is closest to this research field, did not even find anything to ask questions about. Although Chang Haonan simplified many complicated steps, he gave full and detailed explanations of all key points that may cause doubts. After listening to this part, his first feeling was The half of students mentioned before is still too high. My own students know that there can be no more than three students who are able to follow us here without any problems. Chang Haonan on the stage glanced at the five big guys below from the corner of his eye. Obviously, for Tang Lintian and Liu Zhenxiang, whose research directions are more focused on engineering applications, this part of the content is already a bit too much. ?Du Yishan and Qian Lao have sufficient theoretical foundation, but due to their advanced age, they were fine at the beginning, but now that 40 minutes have passed, their energy is a bit lacking. Happily, judging from Yuan Xiangya''s performance, he has completely kept up with the idea. "Based on this algorithm, we have developed a new set of multi-physics coupling calculation tools, namely TORC Multiphysics, for strongly coupled multi-physics problems. So far, I have been working on the turbofan 10 aero-engine project. This tool has been used in the 75,000-ton heavy-duty die forging press project, and in the process of improving the boundary layer-free supersonic inlet for Project No. 10..." The last two-thirds of the article is more of a results report than a paper. Even a brief explanation took a full hour and a half. There was also a break in the middle. In fact, even Chang Haonan himself realized that he had done so many things in the past few years since his rebirth when he was doing this summary. Let alone others. Therefore, when he said "My report is complete, please criticize and correct me", the following six people could not even react immediately. ?It wasnt until he returned to the podium and turned to the last page of the PPT that the applause rang out in unison. This was the thinnest applause Chang Haonan had ever heard, but it was the heaviest. The audience is composed of old, middle-aged and young scientific researchers since the founding of the People''s Republic of China. On the stage, there is... no, it should be said that it is a rising star of the future. The fuel and fire are passed down from generation to generation, endlessly. (End of this chapter) Chapter 738 A surprise from my alma mater Chapter 738 A surprise from his alma mater The report is over, followed naturally by the question and answer session. but There is nothing to ask. At least this is true in terms of the content of the paper. As for the project... Yuan Xiangya doesnt understand it at all. The other three people also had nothing to ask. Du Yishan has left the front line. Liu Zhenxiangs understanding of the situation at the aviation development side is similar to that of Chang Haonan. After returning to China, Mr. Qian is mainly responsible for aerospace and missiles, which is not business-related. ??However, the defense record needs to be kept together with the thesis. If the question and answer session is completely empty, it will not look good. Therefore, it was Yuan Xiangya who finally asked the universal question: It can be seen that your research has achieved fruitful results, and I think you will continue to follow the path of scientific research in the future. So, can you tell me specifically about the next research direction? In fact, generally speaking, a serious thesis defense will include a "research prospects" section at the end. But because Chang Haonan turned the second half of the content directly into a project report, and the report was on three projects that had little connection with each other, this section was skipped. Next step...I plan to study the application of inertial manifolds in dissipative partial differential equations, which naturally also includes the N-S equation, and, if possible, I can rigorously prove its existence from a mathematical perspective..." ?Chang Haonan restated what he had said to Ding Gaoheng before. ?One good thing about engineering is that as long as I find a theorem to be true empirically, I can continue to use it. Even if it is falsified in the future, you can add a correction and continue to use it. But if you want to make a breakthrough at the theoretical level, you cannot stay at the level of "I am thinking and establishing". Fortunately, these two things can be advanced at the same time without interfering with each other. Yuan Xiangya originally just asked a random question to fill in the questions. After getting the answer, he just nodded and said no more. Not even necessarily taken seriously Research and prospecting are basically just writing and playing. As long as it is theoretically possible, it can be considered reasonable. ?In past student defenses, Yuan Xiangya often saw students writing in their prospects that they hoped to prove Goldbach''s conjecture or Fermat''s last theorem. ?After confirming that the defense secretary had completed the recording, Mr. Qian, the chairman of the defense committee, announced that the next step would be to enter the expert review phase, which required Chang Haonan to recuse himself. In fact, by this time, any doctoral student, let alone Chang Haonan, must be stable. If there is really a problem, we cant get to this step at all. Chang Haonan only waited in the corridor for about five minutes before he saw the door being opened a crack. The defense secretary poked his head out and signaled that he could go in. ?At the conference table, the five members of the review committee were sitting upright, and even Du Yishan, who had been smiling just now, tensed up. Reading out the review results, even if there is no suspense, is still a serious matter after all. After all, although the organizational form is relatively casual, the decision of the review committee is actually legally binding. After seeing Chang Haonan walk through the door, Mr. Qian stood up with some difficulty holding the handrail with one hand. Liu Zhenxiang and Du Yishan who were next to him quickly gave him a hand. ?Chang Haonan also quickly returned to stand in front of his seat, putting on a solemn expression. Mr. Qians voice was slow but firm: "The student conducted his graduation project on the topic of ''Space-time Separation Method for Solving Nonlinear Partial Differential Equations''. He is able to skillfully apply the theories and professional knowledge he has learned. His innovation and workload meet the requirements for doctoral training... and he shows a strong ability to work independently. Capability, the designed TORCMultiphysics software has been proven and has extremely high application and commercial value..." "The content plan of the paper is correct, the analysis is reasonable and sufficient, the layers are clear, the text and sentences are smooth, the format is standardized, the thinking is clear and the expression is fluent during the defense process, and can correctly answer all the questions raised by the defense committee. The defense committee believes that the student has a Ph.D. level, unanimously agreed to pass the students graduation thesis defense, and recommended that the student be awarded a doctorate in engineering! Even though Chang Haonan knew in his heart that he would definitely pass the defense, he still breathed a sigh of relief when he heard the decision to award the degree.?????Its not that Im nervous or surprised. Mainly, there is a sense of smoothness that one thing has finally settled. ?Furthermore, he also understood a little bit why Mr. Qian should be appointed as the chairman of the defense committee ??Although Du Yishan said before that it was the other party''s request, the fact that Mr. Qian knew about it meant that someone must have specifically mentioned the matter that he was about to defend. ??If it were another person, it would be really hard to pronounce the sentence "unanimously approved of the student''s graduation thesis defense"... Dr. Chang, congratulations. ? Mr. Qian handed the decision letter signed by all members of the defense committee to Chang Haonan, and then took the initiative to extend his hand to the latter. Thank you again Mr. Qian. The two hands were clasped together. ??Although Chang Haonan has been called Chang Bo since he started studying for a Ph.D., strictly speaking, it can only be regarded as a joke or a compliment. After today, this title will become real. No need to thank me. Mr. Qian replied cheerfully: You deserve a doctorate degree! Lets take a photo together. Today is a day worth remembering. Liu Zhenxiang lowered his head and took out a point-and-shoot camera from somewhere. He was obviously prepared. ??The defense secretary who had been sitting next to him quickly took the camera in his hand and walked to the other side of the room to take pictures. You come over and join us. The defense is over. If you want to take a photo, you can ask the outside staff to come over. ?Du Yishan turned off the projector and waved to the defense secretary who was holding up the camera to take pictures. "ah?" The latter raised his head and looked at the people here with eyes that were confused at first, then shocked, and finally turned into ecstasy: I...really went there? The tone was obviously a little flattered The defense secretary is not actually a secretary, but a member of the committee responsible for recording, and also has the title of professor. ?However, in todays situation, a professor title is indeed not enough. Normally, it would be a great fortune to be able to take a photo with any of the people in front of me, let alone six of them at the same time. The seven of us were killing each other in the Chinese academic world.jpg You are also a member of the defense committee, why cant you come? Lao Qian finally made the decision and invited the staff who came with him from outside. In this way, the number of people taking part in the group photo became 7. Lao Qian patted Chang Haonan on the shoulder and motioned for the two of them to change the order: "Today is your degree conferring ceremony. You are the protagonist, and you must stand in the middle according to the rules." Chang Haonan knew that Qian Lao''s legs and feet were not very good and he could not stand for too long, so he was not suitable to get too entangled in such minutiae, so he followed the other party''s wishes and moved to a position among the seven people. With the sound of the shutter, a photo that can be recorded in the history of Chinese scientific research was taken. After the photo session ended and everyone returned to their seats, Tang Lintian, who had not spoken much before, stood up again and took out a folder from his briefcase. ?Seeing this posture, Chang Haonan knew that it must have something to do with him, so he didn''t sit down directly, but waited for the other party to speak. In addition, after discussion by the school leadership team and reported to the Ministry of Labor and Social Security for approval, in view of Comrade Chang Haonans significant achievements in numerical calculations, fluid mechanics and structural mechanics, Beijing University of Aeronautics and Astronautics decided to appoint Dr. Chang Haonan as a special Director of the Compressor Research Center of our school, director of the school-level computing center, and rated as a second-level professor! After reading, Tang Lintian closed the folder again and handed it to Chang Haonan: The formal letter of appointment and contract will be issued together with your degree certificate in a few days. Congratulations, Professor Chang. (End of this chapter) Chapter 739 Torch Lab Chapter 739 Torch Laboratory At this point, Chang Haonan suddenly remembered that Tang Lintian had said something like "This may be the last time I call you that" before the defense began. So I was waiting here... For him, this is definitely a big surprise. Chang Haonan had already made the decision to stay at the school to teach. As for the titles of the directors, it was just a formal transfer of the positions he had held long ago. But in this era, there are not yet a bunch of labels such as "outstanding young people" in later generations, and the path specifically for young faculty members, including first being appointed as a researcher and then being promoted or promoted, does not yet exist. Therefore, it was indeed beyond his expectation to be directly promoted to professor, or even to second-level professor, in one step. ? ? The X-level professors in 1999 were still classified according to the classification method established in 1956. In principle, they were only linked to salary and remuneration. They were not completely equivalent to the 13-level grading system for faculty and staff that started in 2007. ?However, at the top level of professors, the standards are not much different. First-level professors are basically academicians/faculty members, with very few exceptions. As for the second-level professor, if you have to say... Approximately equivalent to "half-step academician". Yuan Xiangya, who is in the defense committee, is currently at this stage. Basically, you have half-stepped into the realm of academician. As long as there are no major problems and you live long enough, when a vacancy becomes available, you can naturally become an academician. ? And Chang Haonan reached the same position at the age of only 24, and there is no doubt that he has an absolute advantage in terms of age... In short, this wave brought a greater shock than before. After all, its just a doctorate degree, and basically everyone present has it. Chang Haonan was just younger when he got his degree. But the second-level professor ?Except for a few people who knew about it in advance, including Chang Haonan, the defense secretary, and the staff who came in later, all fell silent. Especially the defense secretary. He has worked diligently for almost twenty years and is now a third-level professor... Suddenly became the lowest point in terms of professional title. It is certainly unrealistic to say that there is no envy, jealousy or hatred. ?However, anyone with a little bit of brains knows that this situation is really difficult to deal with... Congratulations to Professor Chang. "Congratulations" ??The defense secretary, who had adjusted her mentality, also came over and shook hands with Chang Haonan: Professor Chang...should be regarded as the youngest professor in history, right? Not really, not really... ?Chang Haonan quickly raised his hand and pressed it down, and replied at the same time: As far as I know, Charles Feiffman graduated with a PhD at the age of 20 and was hired as a professor at the University of Chicago at the age of 22. In comparison, I still have some room for improvement... ??The defense secretary is not a math major, so he doesnt know much about Charles Feiffman. Therefore, after hearing this answer, he couldnt tell whether Chang Haonan was modest or superior. But no matter what, what the other party said about having a nose and eyes must be true, so he then changed his words: At least in China, you should be considered the youngest... Anyway, congratulations Okaythank you. ?Amid bursts of joy, Tang Lintian, who had not spoken since the announcement of Chang Haonan''s appointment, left his seat and came to Chang Haonan''s side. The meeting room suddenly became quiet. ?Most peoples eyes were focused on Tang Lintian. ?There are seven points of curiosity and three points of expectation in his eyes The news just now is exciting enough, but looking at this situation, it seems that there is even bigger news? Ahem ??Although the moment he stood up had already achieved the effect of cooling off, Tang Lintian still coughed twice according to the original plan: "The following news needs to be announced by me, Xiao...er, Professor Chang." After the words fell, Chang Haonan stood up immediately. In fact, this is the reason why his defense meeting was held at Torch Group. After a slight pause, Chang Haonan continued what Tang Lintian said: "Starting from the second half of 1999, Torch Group will cooperate with Beijing University of Aeronautics and Astronautics to establish a joint school-enterprise laboratory specializing in the research, development and exploration of cutting-edge technologies." ??While most people who were previously unaware were still digesting the news, Tang Lintian continued: "The laboratory is directly led by Professor Chang Haonan, and in addition to cutting-edge technology research, the laboratory will also be responsible for exploring new paths for the integration of industry, academia and research, and building a ''lead by leading enterprises, supported by universities and colleges, and mutual collaboration between various innovation entities''" An innovative consortium, forming a ''scientist + engineer'' team, breaking the simple cooperation model of ''Party A and Party B, one project, one contract, one fund''..." As the principal, Tang Lintians industry slang is indeed very smooth. He almost doesnt need to change it. He can write it down as it is and send it out as a press release. ?However, there is still some useful information. To put it simply, Beijing Hang University only conducts the most basic and minimal management of the Torch Laboratory, including annual project review, admission, assessment, degree awarding of joint training students, and decision-making power when major personnel changes occur, etc. . For most daily affairs, the school allows the laboratory to implement a reporting system instead of an approval system, that is, the laboratory director can make decisions without school approval, and only needs to inform the school after the decision is made. It can be regarded as giving Chang Haonan enough autonomy. At the end of the 1990s, the states management of scientific research funds was still relatively loose ?Of course, the main reason is that most research groups simply dont have much funding to manage, and many projects are even funded by teachers themselves. But even under such a general background, it is very rare for Chang Haonan to be able to grasp both personnel and finance. Therefore, when Tang Lintian was speaking to the end just now, not to mention the other people present, even Yuan Xiangya, who was a second-level professor, showed a slightly envious expression. He does have an independent research center. But in terms of scale and treatment, compared with Chang Haonan, it is far behind. ??The conditions Jinghang offered to the latter were completely based on the standards of academicians, even senior academicians. You should know that Tang Lintian just said that the school has the right to decide on "major personnel changes". In a laboratory, the only person who can be called a "major personnel" project is the director, who is Chang Haonan himself. At most, when the laboratory becomes larger in the future, a deputy director and a separate chief scientist will be added. In short, the teachers below are definitely not included. In other words, Chang Haonan can even recruit researchers by himself, and unless there are any major problems, these people must be recognized by Beijing Airlines. ?Who are you going to talk to to reason with this? ?But after thinking about it, it doesnt seem too outrageous. After all, for a school-enterprise joint laboratory, if not all of the funding, at least the bulk of it must come from the enterprise. And the enterprise, that is, Torch Group... It seems that Chang Haonan is also in charge. The left hand is inverted into the right hand. It belongs to yes. Professor Chang, the school has temporarily determined the establishment of 4 teaching positions and 1 administrative position for the Torch Laboratory. After announcing the last big news of the day, Tang Lintian turned to look at Chang Haonan: "But if you need it, you can recruit others as long as the personnel expenses do not exceed the preset share of funds. However, these extra personnel can only be regarded as contract workers. If you want to convert to permanent employment, you have to wait. The school will further expand the quota, of course, we will definitely implement it as soon as possible..." "In addition, your enrollment rights are the same as those of other doctoral supervisors, one doctorate and one master''s degree every year. However, the postgraduate admissions for 1999 have ended, and enrollment is about to begin in August, so enrollment will not officially start until next year. Of course, if you recruit If you are a recommended student of this school, you can enter the laboratory this fall. I think you should be very clear about this process..." ?It has only been three years since Chang Haonan recommended himself to graduate students, and most of the regulations and operations are not much different from what he did back then. The most obvious change may be that due to the overly arrogant performance of Chang Haonan and Yao Mengna, "directly pursuing a doctorate" has changed from a special event in the past to a normal project, but the number of places is higher than that of a master''s degree. Less, and the supervisor who recruits direct PhD students is required to write a statement. Finally, Tang Lintian concluded: If you have any problems that need to be solved during the establishment of the laboratory, please contact me directly and the school will fully cooperate with you..." Chang Haonan is naturally satisfied with these treatments. One doctorate and one master''s degree every year may not seem like much, but it is impossible for him to devote too much energy to cultivating students. ??If you really dont care about recruiting students, just drop a subject and let the students fend for themselves, then its better not to be a tutor. Then, happy cooperation, Principal Tang. He stretched out his hand towards Tang Lintian. Its a pleasure to work with. (End of this chapter) Chapter 740 Build a building, buy equipment, build a laboratory Chapter 740: Build a building, buy equipment, and build a laboratory Several major events were decided in succession within one day, and they were all related to Chang Haonan. The next lunch must be handled by him no matter what. With today''s lineup, especially the presence of a national treasure-level senior citizen like Qian Lao, it would be a disadvantage if we went out to find a hotel to eat. Fortunately, Chang Haonan had already prepared. Certainly not just for today. It came from the beginning of the year, when he wanted to talk to Lao Wu about something, but couldn''t find a suitable place for a while. In the end, he had to go to the guest house of the Aviation Industry Corporation to book a private room. ?After that, Chang Haonan learned from the experience and realized that Torch Group would probably have to do some similar sensitive business in the future. So he specifically applied to the higher-ups to build two high-standard private rooms on the second floor of the group canteen to meet similar reception needs in the future. ??By the way, I also made a small amount of money for public benefit ?Hit a Huaiyang cuisine chef for the canteen whose cooking is very in line with Chang Haonan''s own taste. It''s a pity that after the operation, he was so busy in the past few months that he was about to take off. Although he stayed in the capital for a long time, because of the affairs in the Balkans, he wanted to live in the Science and Technology Commission or Sanzuomen every day, so he had no chance. enjoy. Instead, Yang Huimei and Song Jingming were advantaged. Today''s situation is obviously the time for this arrangement to work. For a high-level business banquet, it is naturally impossible for guests to sit and wait. Therefore, when a group of people came to the private room and sat down respectively, the lunch that had already been prepared was almost completed at the same time. Xiao Tang. Lao Qian took a sip of the lion''s head stewed clear soup, and then looked at Tang Lintian, who was sitting diagonally opposite. In fact, when people get to Tang Lintian''s level, most people will call him Teacher Tang, Principal Tang, or Professor Tang when they see him. But Qian Lao obviously belongs to the outside world. ?Whether it is based on contribution, status or qualifications, let alone Tang Lintian, even if it is Du Yishan, if he really wants to call him Xiao Du, the latter will have to agree. ??Its just that since everyone is an academician of both academies, we usually call them by their first names in private. Qian Lao. ??Tang Lintian quickly put down the spoon in his hand and looked like he was listening carefully. This school-enterprise joint laboratory that you and Xiao Chang are building, in addition to Beijing Hang University and Torch Group, should the local government in Beijing also provide some policy support? ?Although this sentence sounds like a question on the surface, when it comes from Qian Lao''s mouth, it should be regarded as a statement. Meaning that if there is no support now, then I will suggest them to support it when I go back. ?However, those who can sneak into the capital and become leaders must have no say in terms of vision. How could they wait until Mr. Qian made a speech and already provide support policies while the laboratory is still in the project approval stage. "some." ?Tang Lintian nodded and explained to Mr. Qian: However, its not about funding, its about a piece of land being approved. I went to see it outside the North Fifth Ring Road, which is currently being planned. The area is large enough to build a research institute. Thats okay. Mr. Qian naturally understood the value behind this support, so he nodded with satisfaction: You are engaged in engineering, especially if you are engaged in dynamic research, how can you do it without a venue... Yuan Xiangya, who had been engaged in applied mathematics for half his life, had never seen such a posture before. He immediately stopped his chopsticks and looked at Tang Lintian with a blank expression: "So...Principal Tang, are you planning to build a new laboratory starting from the building?" Although mathematical research in the 1990s no longer requires only scratch paper and pencils as in the traditional concept, if you add in the construction of supercomputer and the corresponding use costs, the consumption is actually not low, but in comparison, in the battle In terms of engineering, it is still far inferior to Chang Haonan and Tang Lintian. ?Tang Lintian waved his hand: That land has just started to be developed, so Professor Chang will definitely have to live in our school for the first two years and wait two years before he can move there. In fact, placing the Torch Laboratory in the outer ring is only the first step in his plan. What Tang Lintian really wants is to build a new super-large comprehensive campus for Beijing Airlines in the suburbs. ? Considering that Beijing Airlines is now a member of the C10 Alliance and the first batch of "985" engineering universities, it will definitely expand in the future. ??However, Beijing Airlines current campus is located between the third and fourth rings. ?Although it was still a suburb when the school was founded, with the rapid expansion of the city in recent years, land is now at a premium. It is basically a foolish dream for the school to continue to expand around its original site. Furthermore, in Tang Lintian''s view, conducting research is not suitable for doing research in a downtown area, either from the perspective of confidentiality or from the perspective of the research environment. The Torch Laboratory is equivalent to throwing stones to ask for directions. After all, the new campus he envisioned must be much larger than a laboratory or research institute. If he goes directly to the superiors to ask for policies, he is afraid of scaring others. ?You have to have a small fight first to give the other party some mental preparation. At this time, Chang Haonan also continued what Tang Lintian said and added: Actually, if you just do some research on the theoretical level of numerical calculation, its not a big problem to continue in the same place, but I still hope to combine mathematical theory with practical projects. In this case, it is inevitable to conduct a lot of experiments and tests, but the nature of my research content is quite special. I cannot entrust this content to outsiders, so I have to build it all myself. ??The explanation that the two sang and harmonized made Yuan Xiangya even more shocked: Then wouldnt it be necessary to purchase a large amount of equipment at one time? Of course. ?Chang Haonan replied in a calm tone. ??Torch Group currently has two main sources of income, one is the conversion to the official version of TORCH Multiphysics, and the other is the joint venture established with C.B. Ferrari. ?Although it seems a bit single, the revenue capability is definitely not impressive. ? Among them, TORC Multiphysics has a monopoly position in the world, and Torch-C.B. Ferrari''s products are almost the only choice for high-end machine tools in the Chinese market. Although as a state-owned enterprise, not all of the income can be used casually, but there is still no problem in spending part of it to sponsor the laboratory. ?Furthermore, Beijing Hangzhou University has also prepared a R&D fund of hundreds of millions of yuan, which is enough to build a prototype laboratory. Speak of this. Liu Zhenxiang, who had not spoken to him just now, suddenly spoke: Outside the planned North Fifth Ring Road, isnt it already in Changping? Isnt it a bit remote for students and faculty? After all, it is a school-enterprise joint laboratory, and the school part must still be taken into consideration. It is certainly a good thing to stay away from the busy city, but it is not advisable to go to the other extreme because of this. The balance here is where managers are tested. At present, there is indeed a point. ?Tang Lintian did not deny it directly: However, on the one hand, the land planned for the Torch Laboratory is very large, covering more than 100 acres, so it is not a building, but a park-like one, where separate dormitories can be planned. ?At this time, even Liu Zhenxiang felt that it was a bit exaggerated. But Tang Lintian hasnt finished speaking yet: On the other hand, I am going to fight with the authorities to see if we can set up a branch line, or at least a subway station, nearby when planning the subway line to facilitate commuting. !! ??? (End of this chapter) Chapter 741 If you can’t do math, you just can’t Chapter 741: If you cant do math, you just cant ?Of course, having said all that, independent venues and subway lines are still under planning. Especially the subway. If it is built too far away, the significance of the initial planning will be lost, and if it is built too close, it may affect the operation of some highly sophisticated experimental devices. Hence, it is necessary to adopt a different technical route from the normal track, and even consider setting up a special shielding layer. Even if the approval for the construction is approved, detailed communication must be communicated with the municipal transportation unit. In short, it is difficult to completely solve the problem in the next one or two years. So during this period, Chang Haonan still had to set up his laboratory on the main campus of Jinghang University. After the guests and hosts had a good time, Chang Haonan sent the big guys to the car respectively. But Tang Lintian stayed. School-enterprise joint laboratories, after all, involve hundreds of millions of dollars in funding and the development of more than a dozen students and teachers. It is definitely not something that can be done just by shaking hands and announcing it. Although most of the contracts and procedures have been completed before, there are still many trivial but important details that need to be determined personally by the top leaders of both parties. By the way, Professor Chang. ??Tang Lintian followed Chang Haonan into the office, but he did not sit down immediately. Instead, he skillfully came to the cabinet by the wall and looked up and down: Actually, I have been thinking in the past two years, is our talent training somewhat out of touch with social needs? In fact, Chang Haonan doesn''t know much about talent training, but at this time, he can''t spread his hands and say, let''s change the topic. Besides, he is about to be a doctoral supervisor. This is different from what he led in the research institute in his previous life. Being an apprentice is not the same thing, so I continued following the other persons topic: How to say? Actually, I didnt feel it before, but after you and Professor Liu started that course in the past two years, the gap has become obvious. Tang Lin couldnt find the tea he wanted for a long time, so he had to turn around and sit back on the sofa next to him to drink boiled water: "The first batch of master''s students who have taken that course finished their second year of graduate studies this summer and just entered internships. Judging from the feedback results, it is obvious that this content is very valuable and can often be directly used in actual work. " Ive even heard that some students will specifically write down their grades in this course on their resumes as a highlight when looking for an internship Wait a minute, wait a minute Chang Haonan listened to the other party''s remarks and became more and more biased, so he quickly interrupted: First of all, that class was taught by Teacher Fang. I just went up and gave a few words to him during his first class the year before last..." Hey...dont worry about these details. ?Tang Lintian waved his hand: You are responsible for compiling the textbooks used in theoretical courses, and you are also responsible for developing the calculation tools used in practical courses. You still say that you have never taught students? "In your case, even if you have never taught students directly, you can still be considered a half-teacher at least, let alone have been on the stage once. Judging from my experience, after a few years after graduation, students may not remember I cant remember the name of the teacher who gave the lecture, but whenever I look up the textbook, the editors name is always written on it. ?Seeing that Chang Haonan no longer refuted, Tang Lintian paused for a moment and returned to the original topic: What I just wanted to say is that, inspired by this course, I was wondering whether we could consider offering more courses that are close to reality, and on the other hand, whether we could consider allowing students to start as early as possible, such as in their second year of undergraduate studies or In the third grade, you started to get involved in actual research and development or engineering projects? At this time, Chang Haonan finally understood. ?In terms of teaching numerical calculation methods, Beijing Airlines is undoubtedly at the forefront of universities across the country and even around the world. This leadership is undoubtedly one of the important reasons why Beijing Airlines can become an initial member of the 985 Project. After Tang Lintian tasted this sweetness, he would naturally want to go further. However, as a reborn person, Chang Haonan knew that this kind of thing could not be repeated even if he did not understand education: "Principal Tang, the focus of education is stability and continuity. That course has been very effective in the past two years because when the textbook was written, the content in it reached, or I can say with certainty, far exceeded Cutting-edge of the times. "But as more and more researchers pay attention to numerical calculations, its development speed will be much faster than in the past. If nothing else, I will talk about the new version of TORC Multiphysics that I plan to launch next. Its already very different from the trial version in that textbook. "In the future, we may upgrade the software every six months to a year, but it is impossible to update the textbooks every six months to a year. Therefore, the key is to lay a solid foundation. The knowledge learned in college is eternal. , no matter how advanced it was at the time, it will become obsolete sooner or later, but the learning ability learned is alive and can always be used. " At this point, Tang Lintian already had an enlightened expression on his face. Just when he thought Chang Haonan was going to come up with some earth-shattering plan, the latter suddenly changed the subject and suddenly saw: When it comes to numerical calculations, in my opinion this thing remains true to its roots. "So, if you really want our students to adapt to the times faster, then offer more basic mathematics courses in the first and second years of college, especially mathematical analysis and linear algebra. As the foundation of the basics, we must pay more attention to it. Ahem As soon as these words came out, not to mention the future students, even the principal Tang Lintian almost choked, and a lot of water in the cup spilled out. As the saying goes, "Your eyes will deceive you, and your ears will deceive you. Your experience will deceive you, your imagination will deceive you, but mathematics will not, and mathematics will not." From elementary school to graduate school, mathematics is definitely the most troublesome subject for most students. You are not leaving any way for your juniors to survive... Tang Lintian wiped the sweat from his forehead. He had already thought that if he really did this, he, the principal, would be scolded to death. ??Furthermore, the failure rate is likely to skyrocket in the short term, which is not a good look for the school. . However, in the long run, it can indeed help improve students abilities. I cant talk about the issue of undergraduate training. I still have to go back and discuss it before making a decision. ??Tang Lintian felt that he still had to give himself a buffer first. ?This is his first year as the principal, and it would be really stressful to do such a hard job right from the start. After all, strict control of mathematics teaching is not only a test of students, but also a test of teachers. Let me talk about another thing first, which is to let middle and senior undergraduate students participate in research and development or engineering projects... ?Chang Haonan waved his hand to interrupt the other party. He knew that this was because his magical performance gave Tang Lintian some unrealistic thoughts, but he could not clearly say that he was cheating, so he had to choose a more roundabout route: This matter is the same as what I just said. Whether undergraduates enter the laboratory or participate in projects, they must first ensure that they have sufficient ability foundation and can quickly invest in the project after being exposed to it. If it is just a simple start and do some repetitive work with no nutrition, Then I think its better to use this time to arrange more math classes. ?Tang Lintian once again put on the mask of pain. Lets do this, Principal Tang. After a moment of silence, Chang Haonan gave a "compromise" condition: Torch Group can provide Beijing Airlines undergraduates with some opportunities to participate in non-confidential projects, but before that, they must pass our groups ability assessment, how about that? (End of this chapter) Chapter 742 a new discipline Chapter 742 A new subject After some cordial and friendly exchanges, Tang Lintian finally agreed to adjust the number of class hours and assessment methods of basic courses as soon as possible, and Chang Haonan also promised to allow two senior students to participate in public practical projects through his research group every year. When students who are included in this training method graduate, in addition to the normal degree certificate and graduation certificate, they will also receive a certificate of participation in the "Excellent Engineer Training Program". It can be regarded as a satisfactory result for both parties. Now that the matter is over, I wont bother you any more. ?After receiving Chang Haonan''s assurance, Tang Lintian put down his empty glass, stood up and prepared to leave. As the host, the former naturally could not let the other party go alone, so he quickly got up to see him off. ?While taking the elevator downstairs, perhaps to avoid being left in the cold, Tang Lintian asked casually: Professor Chang, I wonder what research direction you plan to choose first after the Torch Laboratory is established? Well...two levels. Chang Haonan thought seriously for a moment until the elevator reached the first floor and the two of them walked out before answering: After all, the laboratory as a whole has just been established, and Im afraid it wont be able to do any particularly difficult topics, so I plan to find a few less difficult projects in the aviation system to practice my skills on, and also to enhance the understanding among the members of the research team. " "As for myself, I plan to focus on materials science next. Of course, as I said during my defense in the morning, I will study the application of inertial manifolds in dissipative partial differential equations, which naturally also includes the application of N-S equations, but later This research is at the level of mathematical theory and relies more on inspiration, so it is difficult to have a definite timetable. Materials science? Our school doesnt have much research foundation in this area Tang Lintian is not from Neo-Confucianism and does not know much about cutting-edge mathematical theories, so he decisively gave up studying the last half of the sentence. Well, of course I know that. Chang Haonan nodded: So, what I am planning to enter is a new direction, combining numerical methods with material science research. Looking at Tang Lintians slightly confused eyes, he had no choice but to give a further explanation: Simply put, it is a directional analysis and calculation of the characteristics, structure, components, and processing technology of materials through physical modeling and numerical calculation methods. Compared with the traditional research method of materials science, which is close to alchemy, once my idea is realized, it will have obvious advantages in terms of predictability and regularity. Doesnt that mean that in the future, the field of materials science may be like our aircraft design, where the user gives a series of performance parameters, then carries out targeted design, and finally provides customized technology and processing solutions? In terms of engineering, Tang Lintians ability to draw inferences from one instance is quite strong. ?Furthermore, he is originally from computational fluid dynamics, so it is easy to make analogies to his own research field. Thats true, but the simulated objects are different. Chang Haonan smiled: Well, materials science mainly focuses on particle relationships at the microscopic level or multi-field composite relationships at the macroscopic level. The requirements for computing power and algorithm design are not exactly the same as computational fluid dynamics. Tang Lintian also knew that even if he had reached the top in scientific research, otherwise he would not have turned to full-time administration. Therefore, he was very self-aware and did not discuss the technical details in depth, but changed the subject: "This...should be considered a new subject? At least I have never heard of it before." Actually, this research direction has existed for a long time. Not to mention others, I myself completed a special steel-related development project the year before last, using the method just mentioned. ?What Chang Haonan was talking about was the time when he designed the bearing steel formula and process for the three major bearing groups. To some extent, it can be regarded as an indirect result of the concentrated decline of a large number of Japanese brands represented by NSK and NTN Group in the European market. ??A large wave of whales (sharks) have also revitalized many companies from China, South Korea, Eastern Europe and even Southeast Asia. Looking at Tang Lintian who was already a little dazed next to him, Chang Haonan paused for a moment, letting the other party relax a little before continuing: Including the recent production acceptance process for heavy-duty die forging presses, I also tried to use numerical methods to guide the research and development of titanium-aluminum alloy forging processes. Judging from the results, the overall efficiency has been improved by about 40%. However, as of now, research in this area is still relatively scattered and has not formed a complete discipline. If I were to say it, it may be called computational materials science. Different from the situation more than 20 years later when the average person went to materials science journals to fill the gap, in the late 1990s, materials science could not be regarded as a prominent science, and it was still a relatively weak part in China. But it is precisely because of this that the input-output ratio will look better In order to make up for deficiencies in the material field, technical personnel are often forced to perform at a higher level in other parts such as design optimization. ?In this case, when material science in turn fills in the shortcomings, it will often have the effect of affecting the whole body. As previously achieved in the field of bearing gear steels. Then, I wish Professor Chang success in his new research direction! ??For Tang Lintian, after successfully getting his school into the top C10 league in China, he indeed feels like he has lost his life goal. But now, it seems that another golden opportunity has appeared in front of him. Create a new discipline. It is true that this kind of thing cannot be done by one person alone. But there must be one person who can serve as the core. If you have any problems, the school will try its best to help you solve them! Before getting in the car, Tang Lintian shook hands with Chang Haonan again. In fact, considering that the latter is already considered a "half-step academician" and is about to take up the post of chief planner of the Aviation Power Group, if we really count, the resources at his disposal are actually more than those of the president of Beijing Airlines. Tang Lintian only had more. But no matter what, the attitude must be set here first. ?Furthermore, no one would support too much, right? ?After the dust settled on his doctoral defense, Chang Haonan did not immediately engage in new work. Instead, he planned to rest at home in Beijing for a while. After all, the test flight process of Turbofan 10 is going well now. As for setting up a laboratory... The candidates for several lecturers have been basically determined, but the next class of students will not be able to start contacting them until August or September at the earliest. ?It''s okay if you recommend exempted students. If you are a student preparing for the postgraduate entrance examination, it is impossible for others to come over to work at least before the initial examination. There is no hurry to come to this moment. Furthermore, for nearly five months from the Spring Festival holiday in February to now, he has been traveling almost non-stop in Jiangcheng and Beijing, and occasionally takes time to listen to the returns from the Taihang project. Definitely needs to relax a bit. ?However, the idea is beautiful. At Chang Haonan''s current position, his time no longer belongs entirely to him. Having not enjoyed a few days of relaxation, I received a call from Ding Gaoheng. A lot of things happened in the more than half a month before and after his defense. The most important one is ?The fragment of the B2 bomber was carried back by Lao Wu among a pile of sample materials from the Azov Steel Plant. (End of this chapter) Chapter 743 Top Secret Archives (New January, please vote for me) Chapter 743 Top Secret Archives (New January, please vote~) ??When Chang Haonan came to Ding Gaoheng''s office again, the latter was staring at the computer in front of him so intently that he didn''t even notice that a person appeared at the door of his office at the first time. It wasnt until Chang Haonan knocked on the door that he came back to his senses, raised his head and looked outside: Xiao Chang, your schools information is updated very timely. ? Ding Gaoheng motioned for the other party to come in, and then pointed at the screen. As a top scientist, he is certainly able to operate computers proficiently, but firstly, he still prefers to use pen and paper instead of typing on the keyboard. Secondly, after all, he is old and cannot see the small words on the computer screen clearly, so unless necessary, Therefore it is rare to see him using the computer on his desk. Let alone being as focused as I was just now. Out of curiosity, Chang Haonan walked straight to the side of the desk, but the viewing angle of the CRT monitor was really bad. In the end, Ding Gaoheng turned some angles towards him to see the content clearly. ?? is the official website of Beijing Hang University that was just opened. Under the title of the website, there is a photo of Chang Haonan when he received the award, as well as an introduction to the research direction and scientific research results. Even if the parts that cannot be made public have been removed, it still seems too cramped to accommodate the content on just one page, so that the layout is a bit strange. In fact, Chang Haonan has been thinking about making an official website for his laboratory in the past two days, but now it seems that the school is obviously more anxious than him. So, your degree is finished now? The defense has been completed, but the degree certificate and graduation certificate, as well as the letter of appointment as a professor at Jinghang University, have not yet been issued. ?Chang Haonan took two steps back and sat back on the sofa next to him: Principal Tang said that it will be available next week, and it will be officially started at that time. Not bad, not bad Ding Gaoheng straightened the monitor, then closed the web page and looked at Chang Haonan again: After you have a fixed scientific research team, trivial projects can be handed over to them, and you can focus more on yourself. This is obviously based on the experience of people who have experienced it. Similarly, Chang Haonan also has a deep understanding of this. Its just an experience from another perspective Before his rebirth, he was in a team of a big boss, specializing in handling such "trivial projects". ?Although he is said to be the project leader, in reality he can only be regarded as the positioning of screws. ?Of course, the concept of triviality also varies from person to person. In his research group, even screws are not that easy to use. Hmm...I think so too. Just now Ding Gaoheng was talking about this matter, so Chang Haonan climbed up the pole: First, let the new comrades who join my research group be responsible for a few small tasks independently to practice their skills. After they are familiar with the situation, they will gradually increase their responsibilities. At that time, Director Ding can help coordinate several suitable projects for me..." ?Chang Haonan is about to take office as the chief planner of the Aerospace Power Group, but there are no small things related to aerospace engineering, so it is definitely not easy to practice. The Seiko Plan and the 973 Plan have formed a fixed mechanism, and a batch of new projects will be added every few years, and most of them are long-term basic topics that do not meet the requirements for practice. So it is safer to go through Ding Gaoheng. "You kid...Okay, when there is a suitable project, I will pay special attention to it for you." Ding Gaoheng naturally understood what Chang Haonan was thinking, but he still nodded and agreed: However, is it possible that all of your research team are fresh graduates? ?Although Chang Haonan has also just graduated, he has obviously been excluded by Ding Gaoheng as an outlier. If I have to say it... Im actually not a complete novice. Chang Haonan raised his head and thought for a moment before replying: "The candidates currently confirmed are my senior sister, the one who participated in the 83rd Project together before, and has been responsible for the final assembly planning in the 11th Project in the following years. There are also two PhDs from Professor Yan Yongnian of Qinghua University, who have followed Yan The professor also participated in the research and development of the die forging press. But what After briefly introducing the situation, he changed the topic again: From my experience, there is a big difference between participating in a project with a mentor, being responsible for a part of the project, and being responsible for a complete project, so its better to let them get used to it. " Thats true. Ding Gaoheng nodded empathetically: Actually, its not necessarily a problem of ability, but a psychological problem. Especially after suddenly there is no one who can be the backbone, it is inevitable to feel nervous when encountering problems that require decision-making. When I was just transitioning from the subsystem leader to the project leader, I was so worried that I couldnt sleep all night long. Well As he spoke, he lowered his head slightly, pointed to the top of his head, and said half-jokingly: When I was young, my hair was very dark and thick, but during that time, it all fell out Hearing this, Chang Haonan spent a lot of effort not to laugh out loud, but he still almost failed many times, so he had to quickly move to the main topic of this visit: Speaking of which, Director Ding, the fragment you were talking about when you called me just now Its in the basement of the Science and Technology Commission. Ding Gaoheng stood up and took two long-sleeved coats from the hanger next to him. He put one on himself and handed the other to Chang Haonan: Come with me. ??Although Chang Haonan has almost regarded the Science and Technology Commission as his home, he did not know before that there was such a seemingly inconspicuous but well-guarded place under the building. "Logically speaking, things with research value should be transferred directly to relevant research institutions. However, the confidentiality level of this thing, especially the origin of this thing, is too high. Even the Aerospace Materials Research Institute does not have it for everyone. Quan knows that, so he can only put it in this archive temporarily, and wait for a team that meets the requirements to be dispatched there, and then send it there for research..." Although it is said to be an archives, judging from the various things I saw after entering the door, the "archives" here are definitely not limited to paper materials. I''m afraid it also functions as a museum or a vault. ?For example, the pod retrieved from the snowy mountain two years ago, after being studied and reproduced by Chang Haonan and Electronics 14, is now placed on a long table to his right. Ding Gaoheng, who was walking beside him, seemed to notice Chang Haonan looking around and introduced: Whats on these tables are the results of our bat hunting operations back then. You have already studied the pod. Next to it is the front windshield of the MiG-25RBK, and next to it is the relatively intact radome, as well as the pistol and parachute carried by the pilot..." ?Although Chang Haonan knew the general process of bat hunting, he was still a little overwhelmed. Mainly because I didnt expect that I would bring back so many trophies, or rather souvenirs. "The ones over there are from the embankment-building operation the year before last. Our warship happened to retrieve the auxiliary fuel tank lost by a Sea Harrier fighter opposite. We happened to encounter the unmanned submarine captured by the Self-Defense Force submarine during the previous joint exercise. Of course, it is submarine. The two sets of GPS receivers on the device have been removed for your kid to use..." Earlier, in the 1980s, our special agents brought back an RP-22 fire control radar through special channels, and an AIM9L air-to-air missile that was bought from the black market in the Kingdom of David In short, these things are not suitable for the Junbo for the time being, so they can only be left here with us. While speaking, Ding Gaoheng had already led Chang Haonan to a filing cabinet. ?This time, the former does not need to be introduced. ?A completely black fragment with obvious signs of ablation and external force damage was placed on the second floor of the filing cabinet. ?There is also a label attached below - Fragments of a B2 Spirit of Kansas bomber, April 18, 1999, in the Balkans (End of this chapter) Chapter 744 The starting point of the aircraft carrier dream Chapter 744 The starting point of the aircraft carrier dream ??The moment he walked to the filing cabinet, Chang Haonan felt as if he was between two intertwined times and spaces. The architectural ruins and monuments of the previous life, and the plane wreckage and debris in front of us in this life... Shortly afterwards, it turned into scenes that he had experienced in the past three years. The initial course design in Liu Hongbos class; The project team seminar I attended when I first arrived at 601 Institute; Sit in the front seat of the JJ-7 and observe the airflow distribution on the surface of the aircraft; Prototype No. 01 was damaged due to forced landing due to surge; The turbojet 14 that has been brought back to life after major changes; New anti-icing system starting from Yun 8; The turbofan 10 that reached usable status ten years ahead of schedule In front of his eyes, things appeared, disappeared, and reappeared like a revolving lantern... and finally came together. Unknowingly, the world has changed so much because of his arrival. It is a pity that since many things did not happen in this timeline, he, a reborn person, cannot share his feelings at this time with anyone else. Fortunately, since many things did not happen in this timeline, no one else needs to feel the same way as him... Xiao Chang? ?It wasn''t until Ding Gaoheng patted his shoulder that Chang Haonan came back from his thoughts. The latter stretched out his hand and lightly touched the words "AF8901" on the surface of the fragment: Although it has been almost two months, when I see this fragment, it still feels like a dream. "yes" Ding Gaoheng leaned down and looked at it carefully through the light above his head, and at the same time continued: I never imagined that they could actually use the most traditional anti-aircraft weapons to shoot down the latest stealth bombers. Its not just that. Chang Haonan was relatively confident in the technology he had developed, but the series of events that happened before and after shooting down the B2 were completely beyond his expectations: "The main reason is that I never thought that I could completely destroy the Allied operations that had already started...Originally, I just wanted to increase the losses of NATO, especially the Americans, as much as possible. It would be good to let their advanced equipment lose their chain. Already Ding Gaoheng glanced at Chang Haonan next to him with a suspicious expression. In fact, he still feels that these were all calculated by Chang Haonan long ago. Otherwise it would be too much of a coincidence. Especially the GPS interference part. ?But since the other party had already said this, he couldnt refute anything, so he had to change the topic: Originally, we actually thought about making some scraps into souvenirs after research and handing them out to people who participated in this operation, including you of course, but later we put it on hold due to safety issues. ThisI personally dont care Chang Haonan said and took a step back: However, after the Aerospace Materials Research Institute figures out the composition of the surface material and base material, they can give me a copy of the analysis report, which I may need for subsequent research. Thats easy to say. Ding Gaoheng replied: There are very few people who know about this, so there arent many people trying to grab it from you. And even if there are, your side must be the highest priority. ?After admiring his "results" for a while, Chang Haonan turned his attention to other parts of the filing cabinet. But there were no other things piled on it like the long table on the other side where the trophies of the bat hunting operation were stored. Its a pity that I couldnt bring anything else back Chang Haonan sighed and said. Actually, when he first heard that Lao Wu had returned with a fragment, he was quite overjoyed. But men are all big hooves. After seeing it or even touching it, I suddenly felt a little bored. Ding Gaoheng shook his head, showing a dumbfounded expression: "It''s good to have such a thing... Fortunately, it''s relatively thin, and it''s not too noticeable after being wrapped. It''s easy to get away with it. If you get an ejection seat or landing gear or something, let''s not talk about its use. Big, its actually difficult to bring it back quietly like this..." Chang Haonan naturally understood the truth, so he did not dwell on this matter, but continued following what Ding Gaoheng said just now: Speaking of getting away with it, I remember when you called me this morning, you said that this thing was sent back together with the samples and materials from the Azov Steel Plant? Hearing Chang Haonan talk about another topic, Ding Gaoheng stood up straight again: Yes, the name is importing industrial support parts, which is already a very mature route. The compilation of technical data and testing of samples ?Chang Haonan''s tone suddenly became excited. To study computational materials science, it is definitely not possible to rely solely on computer calculations in the void. A huge materials database is also needed. ?Compared to a single stealth coating, if all the data from the Azov Steel Plant can be included, it will undoubtedly be of great help to later research, at least in the field of metal materials. Its ongoing, but the progress is not very optimistic. This archive is located underground, and the environment is quite cold. Especially for Ding Gaoheng, who is quite old, it is difficult to resist for a long time even if he wears a coat, so he answered and prepared to leave with Chang Haonan: After the disintegration in 1991, the production and management there were very chaotic. In the past eight years now, many materials have been stolen and even those that have been preserved are generally arranged in a disorderly manner, and it takes a lot of effort to rearrange them. "And just like when Project 11 was first started, there are not many people in the domestic metallurgical field who understand Russian. Now we can only hire back some retired old engineers and technicians, but these people Most people dont know how to use a computer, so they can only write it on paper first, and then find someone to type it in..." Hearing what Ding Gaoheng said, Chang Haonan also realized that he had oversimplified things a bit. However, the shipbuilding industry system, and even the navy, have sent manpower to support this matter. They are more anxious about this matter than you, so it is estimated that it will be almost completed in another six months to a year. While talking, the two of them had already gone upstairs again and returned to Ding Gaoheng''s office. As an important special steel production base during the Soviet period, the Azov Steel Plant is almost equivalent to a rich treasure house. Almost all the special steel materials needed by all walks of life can be found in related technologies, but if it is accurate to the shipbuilding industry, the first thing that comes to mind is Of course it is an aircraft carrier. Since the Sea of ??Azov is connected to the Black Sea, the large ships built by Nikolayev Shipyard will basically use the steel produced by the Azov Steel Plant nearby. Director Ding, what do you mean, are you planning to build an aircraft carrier? ?In the original timeline, there has always been controversy on the Internet as to when the leadership finally made the decision to directly convert the Varyag into a Type 001 aircraft carrier, rather than just as a design reference. As a member of the aviation industry system, Chang Haonan had no way of knowing the inside information of his brother unit. But in any case, if the decision can be made in June 1999, and the information that Lao Wu got back from Er Mao is far more complete than in the previous life, the progress of transforming the aircraft carrier will obviously be accelerated a lot. "Um." Ding Gaoheng nodded and gave an affirmative answer: We have received reports that Luchuang Group has signed a formal purchase agreement with the Black Sea Shipyard and is currently planning the route and method of returning to China. If everything goes well, it should be able to set sail before the National Day this year. Chang Haonan naturally knew that the process of towing this aircraft carrier back to China was not smooth. In the end, it took more than two years to delay, and I did not return to China until March 2002. The conditions for this are still secondary. The key is that too much time is wasted. However, the aircraft carrier hasn''t set off yet, so he can''t just say that. I guess Turkey and Egypt will block it midway, so I have to think about it first and see if I have anything more in my hand than in my previous life. chips. Especially the process from the Black Sea to the Mediterranean Sea. ??If the Suez Canal is not possible, you can still go through the Cape of Good Hope. ??But the Bosporus cannot be avoided no matter what. (End of this chapter) Chapter 745 Regarding the planning of carrier-based aircraft Chapter 745 About the planning of carrier-based aircraft ?Chang Haonan finally decided to put aside the matter of finding bargaining chips with Trkiye. After all, the Torch Group alone has now spread its business to at least a dozen countries in Europe and Asia. There are dozens of directly related patent authorizations and cooperation projects. If we consider the existence of There are countless indirect contacts. It would definitely be very inefficient if he was left alone to think about it. ??It would be better to ask Song Jingming to go to the archives and conduct a systematic inventory after returning. If you can find it, you can use it directly during negotiations. If not, you need to consider whether you can play a hand of void cards. After all, compared to the previous generation, Chinas current national strength is stronger, and its relationship with the EU is also closer. At the end of the 1990s, Turkey generally had a dog-licking mentality when it came to the EU. Hence this latter point is important. Ding Gaoheng naturally didnt know that Chang Haonan was already thinking about things a few months later. He just took off his coat and hung it on the hanger, then sat back on the office chair and continued: An aircraft carrier is not just a big ship. If it wants to exert its combat effectiveness, its core is carrier-based aircraft. "Our navy is developing relatively slowly. Even for carrier-based helicopters, the experience in using them is very weak. Not all destroyer detachments are even capable of operating them, let alone fixed-wing carrier-based aircraft. The use, maintenance, and scheduling are all brand new. subject. "So, the current meaning is to make two preparations. If the domestic model can catch up with the transformation progress of the aircraft carrier itself, then the domestic model will be used. If not, then we can also consider importing a batch first so that the troops can practice relevant subjects. " At this point, he paused for a moment, straightened his upper body and looked at Chang Haonan on the sofa: Xiao Chang, do you think, given our current situation, are the conditions ripe for independently developing carrier-based aircraft? ?Chang Haonan has limited knowledge about shipbuilding and the navy, but when it comes to carrier-based aircraft, he is not troubled: Mature, of course mature! "Imported carrier-based aircraft are nothing more than the Russian Su-33, and now on our own side, the first prototype of the J-11B has begun production, and the turbofan 10 has also entered the final stage of dual-engine installation testing. It can be said that , the two major obstacles that restrict our country''s third-generation fighter jets from achieving complete autonomy, structure and power, can be solved in just one step. As long as these two problems are solved, at least in terms of the most basic flight safety, there will be no major problems. " "As for combat effectiveness, the Su-33 is just a standard third-generation aircraft with the technical level of the late 1980s. The airborne equipment is not much different from the Su-27SK we imported before. The Russian Kuznetsov cannot leave port for a few days throughout the year. It is basically There is no motivation to upgrade according to Su-27SM standards, so it is impossible to compare with the J-11B after major modifications. " Hearing Chang Haonans affirmative answer, Ding Gaoheng showed a satisfied look: "However, there are still some differences between carrier-based aircraft and land-based aircraft, and more importantly, since our military has never been exposed to carrier-based aircraft in the past, users are not very clear about the specific differences. In this way, In terms of progress While speaking, he took out a notebook from the drawer next to him, opened it, and looked like he was preparing to record it. Obviously, this question was not what Ding Gaoheng wanted to ask Chang Haonan, but what the former was prepared to do in response to inquiries from higher-level leaders. Actually, this is a very real concern. For a brand-new subject like carrier-based fixed-wing aircraft, the biggest trouble lies not in how the aviation industry system solves the problem, but in the fact that the navy does not have an aircraft carrier or a carrier-based aircraft in hand, how does it deal with the entire shipboard aviation operation? I have no idea at all and have no idea what the problem might be. ??And if you forcefully launch an immature model, and later find so many problems during use that it needs to be rebuilt, it will consume more resources. In this regard, even a country like the United States, which has operated aircraft carriers since before World War II, entered the jet age and iterated on five levels of aircraft carriers from Midway to Nimitz, as well as four generations of carrier-based aircraft from F9F to F18. , only then has a relatively stable and mature design and usage specification been formed. ??In this process, countless carrier-based aircraft fell down and pilots were lost. The Chinese Navy has neither resources nor time to waste like this. This is why in the original timeline, in addition to the upgrade of the airborne weapon system, the technical status of the initial version of the J-15 was closer to the T10K-3 prototype. After entering mass production, it gradually began to be upgraded to later domestic models in batches. Get closer. By the time the two-seater model of the J-15S is introduced, it is closer to the J-16 in terms of pedigree (the Su-33 does not have a tandem two-seater model). ?However, this was all in the past. Now, Chang Haonan naturally already has a plan: "If what is towed back is a complete aircraft carrier that can be put into use immediately, then it is indeed impossible to come up with a highly complete carrier-based aircraft in a few months, but I heard Old Wu talking about it years ago Looking at the situation of the Varyag, the ship is currently only 60% complete, and the boilers and steam turbines inside have been dismantled, even if all the technicians and technical data from the Nikolaev Shipyard are brought over , it will be difficult to complete within three to five years. ?His tone was very determined. He picked up the cup and took a sip of water before continuing: "As for the problem of the Navy''s lack of operational experience, on the one hand, I asked Lao Wu to pay close attention to the situation at the Nitka aircraft carrier training base. He has already established a relationship with the managers at Ermao, although the fixed facilities cannot be moved. , but the design drawings and materials can be bought back, and the Ermao Navy only has a few small ships, so there is no room for naval aviation. The instructors in the base can also be introduced to the country through the friendship program to help us with training. " "On the other hand, when I helped Guihang Group design the JJ-9, I considered the possibility of being put on a ship, so I specially left enough strength margin for the rear fuselage and landing gear, so that it can be used within a certain period of time. Simulating shipboard dispatching operations to a certain extent allows the Navy to have a general concept of carrier-based aircraft operations. After discovering problems through land-based simulations, it can then be optimized to the official carrier-based aircraft model. " With this two-pronged approach, the three to five years it takes to build warshipsis enough to iterate several versions of technology verification aircraft. "The other is my field, aviation engines. The aircraft engines of carrier-based aircraft need to improve their salt spray resistance. For this, I only need to apply new coatings on the fan and compressor blades. The ion plating that was replaced before The production line has been put into production, so there is not much of a problem in this regard. Furthermore, when the ship is touched and go-around, there may be an emergency thrust larger than the afterburner thrust. This requires modifying the parameters of the afterburner... " Now that you say that, I feel relieved. Ding Gaoheng nodded while writing furiously. "Actually, I would say that it would be best to have a medium-sized fighter equipped with dual center thrusters as a carrier-based aircraft, like the MiG 29K and F18. However, our financial resources are still very thin after all, and we really cannot afford to serve three. The third-generation aircraft of the model are in service at the same time, so we can only wait until the fourth-generation fighter is developed in the future..." ?Chang Haonans plan obviously does not stop at the immediate few years. Youre saying that mid-sized opportunities are better? Ding Gaoheng raised his head curiously. This is true for carrier-based aircraft. Chang Haonan explained: In the case of land-based aircraft, because the airports dispatch space can be considered to be close to infinite, when the technical levels are similar, it is natural that the comprehensive performance of heavy-duty aircraft is stronger and more advantageous. "However, aircraft carriers are very precious in terms of land, both in the hangar and on the deck. Although the performance of heavy-duty aircraft is better after takeoff, the area occupied during the maintenance process is too large, which will cause trouble for scheduling and is not conducive to improving the dispatch rate. Therefore, theoretically Generally speaking, for aircraft carriers of different sizes, there will be corresponding optimal solutions for the size of carrier-based aircraft. "From this perspective, it is best to determine the basic design of the aircraft carrier and then specially develop the corresponding model of carrier-based aircraft to achieve the best matching effect between the ship and the aircraft. However, this is definitely not the focus of our current consideration. Thats it Ding Gaoheng also followed Chang Haonans answer and completed the record, then closed the notebook and lightly dusted the cover: If General Liu saw this plan, he would be very happy. Before he retired from his leadership position, the last document he signed was on the development of naval aviation..." Mr. Liu is known as the "Father of China''s aircraft carrier" and has made outstanding contributions to the modernization of the navy, including aircraft carriers. It was a pity that in his previous life, he was not able to see the day when China''s first aircraft carrier was commissioned. But based on the current timetable, that should be more than enough. Not to mention seeing it, maybe you can take advantage of the old man''s good health to go out to sea for a while... Planning is just a drawing after all. When Mr. Liu sees our countrys aircraft carrier, he will definitely be happier ?Chang Haonan also replied with a smile on his face. (End of this chapter) Chapter 746 Preparing to establish a research team ( Chapter 746: Preparing to establish a research team (take advantage of double the opportunity to ask for a wave of monthly votes~) Be it aircraft carriers or carrier-based aircraft, after all, they are all things that will fight the future. For Chang Haonan right now, there are only two priorities. The first is to pull together his own research group, and the second is to prepare to officially take up the post of chief planner of the Aerospace Power Group. The second thing is that we can only wait for the arrival of July 1st. Hence, Chang Haonan had to focus on building a research team first. Qinghua University graduated earlier than Beijing Airlines. By mid-June, the two disciples of Professor Yan Yongnian had not only received their diplomas, but had even reported to Tang Lintian at Beijing Airlines. However, Chang Haonan has been resting at home the past few days. They didn''t receive the notice and didn''t know where to go to work, so they kept putting it off. ??If I hadnt signed the employment agreement and confidentiality agreement before, I might have thought that I was being let go. ?Now that I finally received the long-awaited call, I naturally rushed to Beijing Airlines as quickly as possible. ?Yao Mengna, on the other hand, completed her defense a few days after Chang Haonan, and has not actually obtained the dual certificates yet. ?But since he graduated from this school and stayed here to teach, he didnt say much. Now we are waiting to be assigned research topics. Since he currently holds three positions and an independent experimental park is under construction, Chang Haonans current main office location is still in the directors office of the Computing Center. Professor Chang, Ill take care of you for the future work. Yao Mengna sat on the sofa and said in a half-joking tone. Her current feelings are probably similar to those of Liu Hongbo before. ?However, after all, it is just from a junior to a boss. Compared with going from a student to a boss, the role transition is much smoother. And as early as when she joined the August 3rd Project, she had already worked on projects under Chang Haonan. So the impact will be slightly less. Dont worry, Teacher Yao. Chang Haonan answered with a smile while getting a glass of water for himself and Yao Mengna, and then sat on another sofa facing the door: Studying materials science, I cant guarantee other things, the paper must be easily filled with water ??Although Chang Haonan himself became a second-level professor directly after graduation, and the starting point of his teaching career has exceeded the end point of most people, others in the laboratory still have to start from lecturer positions as usual. ?Some things are still inevitable. Thats not what I meant Yao Mengna held the cup in both hands, shook her head slightly, and her tone suddenly became solemn: "After the end of the August 3rd Project, I chose to stay in Factory 112 to work on projects because I felt that I was lacking in basic skills and might be more suitable for some application-level work. However, over the past two years, I gradually found that Even if you are working on applications, not having enough theoretical skills will slow things down. "Among other things, I adjusted the new production line of Project 11 many times, but the production efficiency never reached the ideal level. Later, I gradually saw some patterns and discovered that different types of work and different areas The distribution of working hours should follow a certain rule, which is equivalent to the global optimization of a discrete function, but based on my own ability, I cant continue at this point. Thats why I thought about going back to school after graduation to improve my theoretical abilities If you think so, that would be great. Hearing Yao Mengnas thoughts, Chang Haonan was quite happy: I will pay special attention to it when arranging the division of labor for the project later. If there is anyone who has higher requirements in this area, I can bring it to you to practice... ?Although Chang Haonan cannot say that he has completely achieved project freedom now, he has at least reached the stage where people choose projects instead of letting projects choose people. It is not difficult to find a training job for Yao Mengna. In fact, he has always felt that given the other party''s talent, he should be able to go further in theoretical research. Yao Mengna chose to directly enter the application field before. I am afraid that a very important reason is that she was hit while working on the 83rd Project. ?However, it is not too late to change your mind now. If we follow the normal process, we should do one or two more years of postdoctoral work after graduating from the Ph.D., but Yao Mengna and others are in a special situation. They have already started working on very advanced projects during the Ph.D. stage. There is really no one. The postdoctoral mobile station is for them. Project division of labor Yao Mengna was stunned after hearing this: I heard from Principal Tang before that he didnt want to study materials science Its computational materials science. Chang Haonan smiled and waved his hands: "I did tell him about this, but at least for a short period of time, the research in this direction will only be my personal work. You new teachers should focus on familiarity with the work..." This was said more euphemistically, but Yao Mengna could still do it. Understand the undertones She may be holding back a hundred million points in starting a new subject. ?This feeling of being completely unable to keep up with the opponent made Yao Mengna feel a little frustrated. In fact, as Chang Haonan just guessed, she chose to stay at Factory 112 two years ago instead of working on other projects with Chang Haonan, largely because of the blow she received. In other words, its just a bit awkward. Fortunately, she has adjusted her mentality. ?Although the frustration is still there, at least I have learned to divert my attention. Speaking of this Yao Mengna originally wanted to ask who among the "several" new teachers Chang Haonan mentioned besides her, but just at this moment, there was a knock on the door outside the office. "Enter." ?Chang Haonan said loudly to the door, and then looked at Yao Mengna again: Two other colleagues are here. While talking, the door of the room was pushed open, and two people with a somewhat student-like appearance walked in from the outside. ??Of course they are the two PhDs he poached from Professor Yan Yongnian. Mr. Chang, oh... no, Professor Chang, hello. Both of them were members of the die forging press project team before. Although they only participated in some development work of the secondary subsystem and rarely met Chang Haonan directly except for the initial and final meetings of all members of the project team, they It is still difficult to change the title for a while. Hello. ?Chang Haonan stood up and shook hands with the two people who had just stood. It can be seen that in today''s environment, they are still a little cautious. As PhD students from Qinghua University, they should often attend various occasions with Yan Yongnian. But its one thing to work as a follower for your boss, its another thing to be an independent researcher yourself. Whats more, we have to join a brand new research group. ??Nervousness is inevitable. So much so that the atmosphere was a little cold for a while So, Chang Haonan had no choice but to change his tone as relaxed as possible: Why dont you introduce yourself? Since he asked for people from Yan Yongnian, he must have seen the files of these two people. But self-introduction is a good way to warm up for people who are more introverted or not very good at expressing themselves. My name is Lei Zhixing, a native of Shandong Province. I received my bachelors, masters and doctoral degrees from Qinghua University. I studied pure mechanics at first, and then my research direction changed to computer-aided design when I was studying for my Ph.D. Liu Fangping, a native of Jinling, studied mathematics at Jinling University for both his undergraduate and masters degrees. He came to Professor Yans research group with a doctorate and was responsible for the design of mathematical models. Sure enough, the two of them clearly felt relaxed. At least I can speak much more smoothly than before. This is Yao Mengna, my... ?Originally, Chang Haonan was going to introduce Yao Mengna to Lei Zhixing and Liu Fangping as usual, but according to previous habits, halfway through, he felt something was not right. ?This is just like when introducing Liu Hongbo, it seems inappropriate to emphasize once again that the other person was his teacher in the past... But at this time, Yao Mengna herself took over the conversation: Yao Mengna, like you, is a new lecturer this year. She has a bachelors and doctoral degree from Beijing Hang University. Her major is fluid mechanics and structural mechanics. Obviously, she has decided to completely put down the burden of being a "senior sister" and start her career with a new identity... (End of this chapter) Chapter 747 Be a qualified boss Chapter 747: Be a qualified boss After exchanging pleasantries, Liu Fangping looked at the four people around him, including himself, and hesitated for a moment, but still asked: Professor Chang, besides you, there are only three of us in our laboratory? The configuration of one professor and three new lecturers is quite explosive in the scientific research world, especially in the circle of key laboratories. ??Although this professor is the youngest second-level professor in the country and a real boss who has already presided over national-level projects before graduating with a doctorate, he is also suspected of being top-heavy. Mainly because Chang Haonan, as the boss, is busy with everything and has not left the front line of scientific research, so it is impossible for him to do everything himself. Generally speaking, in this case, there should be several lower-level professors or associate professors in the laboratory who are responsible for the daily work. "According to the establishment, we still have one vacancy, but I haven''t found a suitable one yet, and I''m not in a hurry." Chang Haonan replied. In fact, he had contacted Xu Yang before and asked if he was interested in transferring his files to Beijing Airlines to teach. The latters current professional title is already a full senior researcher, and they can be seamlessly converted into a third-level or fourth-level professor after coming here. ?However, Xu Yang said that he had no intention of taking students. Academician Li Jie, who heard about this incident, also said that based on the painful experience of the Institute of Computing Technology in the past few years when Xu Yang was asked to teach graduate students, which resulted in many people dropping out of school because they could not keep up with the pace, Chang Haonan was not recommended to let the latter serve as a teacher. position, but can be seconded to serve in purely scientific research positions. Chang Haonan considered that if two stress monsters appeared in a laboratory at the same time, the life of the students might indeed be a bit difficult, so he finally followed Li Jie''s suggestion and gave up the idea. ?But for him, if it is purely scientific research, then Xu Yang is already registered in the Torch Group, so there is no need to go through trouble and get a quota. As for the other people he knows, they are either big bosses who lead the research team and it is impossible for him to help them, or they are older and have average potential, which is fine if they want to cooperate, but there is no need to recruit them into the laboratory. So this last establishment is temporarily vacant. Why, are you worried that my level is not good enough to lead our daily work? Chang Haonan asked in a joking tone while extending his hand to signal a few people to sit down. No, no, no Liu Fangping''s reaction was a little flustered, and he waved his hands to deny it. However, he seemed a bit clumsy under the tension. He didn''t know how to explain it for a while. Fortunately, although Lei Zhixing next to him looks rough and tough, even standing next to Chang Haonan like a bodyguard, his reaction is much faster: We feel that, Professor Chang, you must be very busy at ordinary times. There are only three of us lecturers in the laboratory every day...if we are all fresh graduates, will it not run smoothly..." ?Chang Haonan looked calm on the surface, but in his heart he had already made a preliminary judgment about these two people. ?In the situation just now, Lei Zhixing did not add insult to injury, but chose to rescue his companion, which shows that the relationship between the two people is at least acceptable. In this way, he can feel a little more at ease if he wants them to be responsible for a topic or project at the same time in the future. ??If their performance was not like this just now, then we should consider trying to separate these two people as much as possible. In fact, if you can successfully graduate from Professor Yan Yongnian and be trained as a close disciple, you dont need to worry about your academic level. Its just that I have just changed from a student to a worker, and I dont quite adapt to this identity change. Otherwise, Chang Haonan would not have been able to invite these two people over. What he is more concerned about is the relationship between them. Of course there is also character For him, the director of the laboratory, the quality of the two lecturers will not have any impact at all, but for the students recruited in the future, if the instructor, or even just the teacher in the same research group, is too inappropriate, life will be ruined. It will definitely not be easy. Indirectly, his reputation as a big boss will also be affected. ??Although the mentors Chang Haonan met in his two lifetimes were pretty good, he had heard a lot of similar things. In the end, there were situations where teachers and students turned against each other. Whats wrong with the newbies? Everyone has come from the newbie stage ?Chang Haonan leaned on the back of the sofa and made a "big boss.jpg" look: Our Torch Laboratory is Beijing Airlines, or it is currently a key construction target of university-enterprise cooperation in universities across the country. We are considered to be explorers of this type of cooperation model. Too much past experience will limit our performance. Furthermore, I believe in your ability regarding the subject matter. If there are really unsolvable problems, we can solve them together. Of course, I still hope that you can rely on yourself as much as possible. As for the daily work of the laboratory, if you have any questions, you can contact Principal Tang directly. He will help solve it to the best of his ability. ?After saying this, Yao Mengna was already used to it, but Liu Fangping and Lei Zhixing had never seen this formation before. When the two of them came to Beijing Airlines to report before, Tang Lintian did say something similar to them, such as that school leaders should serve faculty, staff and students, but even Liu Fangping, who was not good at speaking, was just a bit dull, and it was not true. No brainer, naturally he just took it as a courtesy and didn''t take it seriously. A lecturer who has just joined the job should contact the principal directly if anything happens? How many dishes are there to drink like this? As a result, it seems now that the two of us are narrow-minded... They are really not being polite... ?However, they still know the shadow of a persons famous tree. Having this kind of treatment is mainly due to this laboratory, or in other words, to Chang Haonan. "With your words, we feel relieved..." In any case, the matter that the two of them were most worried about was solved. Liu Fangping breathed a sigh of relief and replied: "So...Professor Chang, what tasks are you going to assign to the two of us? During the summer, we might as well look for some literature and study it." You also need to be bolder. Chang Haonan looked at the two people sitting side by side on the sofa like primary school students. He felt a little dumbfounded and did not immediately answer Liu Fangping''s question: By October, or at the latest by January next year, your students will join the group. If they find that even their instructors have little confidence, their enthusiasm will inevitably be affected. Besides, you have all been in big situations with Professor Yan before, so you should be able to adapt to it quickly. ?Yao Mengna and the other three are currently only lecturers. They will definitely not be able to take PhD students, but each of them will have a quota for a master''s degree student every year. ?Of course, in an environment like the Torch Laboratory, the distinction between a specific teachers students is not necessarily so obvious. After all, it is estimated that most people submit their resumes because of Chang Haonans name... ??And based on his experience, in the fields he plans to enter in the future, there is no inevitable connection between the student''s level, the degree level, and the instructor''s level. In other words, masters students may also find treasures among them. ?Mathematics is something that a master brings in, and cultivation depends on the individual. If you havent mastered it by the age of 25, then you basically have no hope in this life. You can only switch to applied mathematics. Otherwise, you can only study engineering. ? Even if Chang Haonan is still doing it, if he wants to develop from a purely applied engineering field to a theoretical field, he can only wait for the system to be upgraded. Let alone others. This is how the chain of disciplinary contempt usually comes about. Before was before, now is now ?Lei Zhixing, who had not spoken much just now, scratched his head: Before, when I went out, others focused on Teacher Yan. Now that I suddenly became a teacher, I felt a little... unsure of myself. It is a common phenomenon when students have just stepped out of school and entered society. ?In the previous life, Chang Haonan was like this when he first started working at the Aviation Industry Group after graduation. He was timid in doing things. It took about two years before he gradually got used to it. But now, he doesn''t have two years to waste. It should be caused by a sudden change in the environment, but we are also a university here, and the environment is similar to yours in the past. I believe you will be able to adapt quickly. ?Chang Haonan stood up, came behind the desk, and pulled out a pile of information from the drawer: Teacher Liu just asked about the project, and I happened to have received a suitable one a few days ago. I can help you practice your ability to be responsible for a project alone. Seeing the kraft paper portfolio in Chang Haonan''s hand, Liu Fangping and Lei Zhixing''s eyes lit up at the same time. ? Ph.D.s from Qinghua University were still relatively valuable in the late 1990s. It would not be difficult for them to find a more relaxed part-time job or a lucrative position. As for scientific research, although the conditions have been much better than in the past due to Chang Haonan''s influence in recent years, it is still a relatively difficult job in general. ?Under such circumstances, they still choose to take up teaching positions in colleges and universities, which shows that they have dreams. ?Now, facing the first project in my career, it is inevitable that I will have some expectations... ?Of course Im still a little nervous. ??If it is messed up when you come up, it will be difficult to determine your status in this laboratory in the future... Dont be nervous, its just some preliminary situation research. ?Chang Haonan pulled out two stacks of papers from the leather file bag. When Liu Fangping and Lei Zhixing saw this, they quickly stood up and quickly came to the desk and took them with both hands: Hudong Shipyard came to me before and said it wanted to develop LNG ships that match Gas-Transport cargo tanks. However, I couldnt leave at that time, and Torch Group didnt have enough manpower to do this. "This is part of the outline materials and core technical standards sent to me by the shipyard. Let''s take a look at it first, and then look for some literature. When you are ready, go to Shanghai on a business trip to learn about the specific situation. " Cai Honggui has actually copied almost half of the car''s data and sent it to the Torch Group, but things may not always turn out so well in the future. Therefore, for this first project, Chang Haonan still plans to let two people work on the data collection part. rise. "yes!" The two of them answered in unison. Right now, our laboratory does not have an administrative secretary, travel expenses and a letter of introduction. You can go and report to the school yourself. In addition, I will use part of the laboratory funds to implement it according to the higher standards for you. The travel standards implemented by public institutions were still formulated in 1996. Ordinary employees receive 15 yuan per person per day for meals and 3 yuan for car allowance. ??When Chang Haonan went to Shengjing to participate in the August 3rd Project, he received this number. At that time, he felt quite nourished. But now in 1999, 18 yuan per day is already relatively abstract, not to mention that this time we are going to a place like Shanghai. Even if the food and accommodation are provided by the Hudong Factory, it is somewhat uninteresting. Hence, each unit will generally be flexible when implementing it. ?Chang Haonan has no shortage of money either in his own account or in his company''s account, so naturally he will not treat others badly in this regard. (End of this chapter) Chapter 748 Preliminary tasks of LNG ships Chapter 748 Preliminary tasks of LNG ships Liu Fangping and Lei Zhixing basically conform to the most traditional portraits of boys majoring in science and engineering. ??Although he was very reserved when he first met Chang Haonan, as soon as he talked about things related to the project, he immediately became more relaxed and his nervousness disappeared. Professor Chang. ?This time it was Lei Zhixing who spoke first: To store and transport liquefied natural gas, the main difficulty in shipbuilding is probably structural safety. ? Mechanics is a broad-based major that can be involved in anything in the material world. Therefore, although he has not studied the shipbuilding industry in depth and the information at hand is incomplete, he can still get some inspiration from projects he has done in the past. ?Chang Haonan did not speak, but stretched out his hand slightly to signal the two of them to continue talking. Liu Fangping, who was a little clumsy just now, answered this time: "Most materials, especially metal materials containing iron elements, have highly nonlinear and even discrete characteristics in their performance changes at extremely low temperatures. Structural properties such as strength, plasticity, fatigue life, etc. change greatly and cannot be Design based on experience with general equipment. "When I was a PhD student in Stiffness, I followed my mentor to analyze an accident involving cracking and failure of a container in a low-temperature liquid nitrogen storage tank. The cause found at that time was an abnormal increase in strain-induced martensite content caused by cold deformation of austenitic stainless steel, which ultimately led to The head section suffered brittle failure. "Although the temperature of LNG is not as extreme as that of liquid nitrogen. According to data, it is about -60C in normal high-pressure storage. However, compared with storage tanks on land, ships in navigation are not a good storage platform. Ships There is a high-temperature environment like the power cabin inside. Under normal circumstances, the temperature difference across the ship can be pulled up to 100C. If we also consider that once the LNG leaks, the low temperature of -168C will directly impact the hull structure. For the safety factor, Require" In just a few minutes after getting the information, he had already said more than half an hour before. Compared to Lei Zhixing, Liu Fangping''s speech rate is slower, but judging from his eyes and expressions, it is obvious that he is thinking while talking, rather than being at a loss like before on the sofa. Since both his undergraduate and master''s degrees are in science, his project experience is obviously not as good as that of the former who has been following Yan Yongnian since his senior year. However, for the same reason, he is often better at analyzing the essence of the problem: "Professor Chang, I think that before going to Hudong, it is best to conduct some preliminary research on the relationship between temperature changes in the elastic body and thermal stress and thermal strain, especially the structural temperature field function, heat conduction equation and The coupling relationship between the thermoelastic equations of motion can then be used to establish a relatively accurate hull structure model. Otherwise, just by going around for a while, Im afraid you wont gain much. When talking about areas that he is relatively familiar with, Liu Fangpings speaking speed gradually changed from slow at the beginning to normal. Of course, the normal here is the standard for most people. For him, it should be very fast. After saying that paragraph just now, Liu Fangguan''s face, which was originally a little dark, turned quite red. Chang Haonan was so frightened that he quickly handed him a bottle of water. Lei Zhixing next to him was obviously used to this, still looking down at the documents in front of him. ??When Liu Fangping expressed his opinion just now, he kept nodding beside him, obviously agreeing with the other person''s opinion, but at this time he frowned, looking troubled: But in terms of time...if we want to start research from scratch, firstly, neither of us has systematically studied thermodynamics in the past, and secondly, studying low-temperature topics requires specialized ultra-low-temperature equipment...I am afraid it will not be easy to solve in a short time. Uhthen take your time? At this time, Liu Fangping drank some water and his complexion returned to normal. ?Of course, the speaking speed has also returned to its previous slow state. "Hmm... But looking at the meaning of this information, it seems that Hudong Shipyard wants to compete with Bang... er, South Korea''s Samsung Offshore for the dominance of GTT Group''s second-generation cargo tank technology shipping orders. According to them It is estimated that the key time point for this round of competition should be 2002-2003 at the latest. In other words, the plan, or at least the key technology, must be come up before then, and time is not generous..." ?Lei Zhixing shook his head while flipping through the information. ?Chang Haonan gradually began to understand why Yan Yongnian had to accept two closed disciples at the same time. Lei Zhixing and Liu Fangping are indeed complementary in many ways. ?Taken individually, they all have quite a few flaws, but when put together they can produce an effect of 1+1 greater than 2. Chang Haonan himself felt a little sorry that such a pair of live treasures were cut off like this. So he quickly thanked Yan Yongnian in his heart. Then he spoke: For equipment issues, I can contact the China Institute of Atomic Energy. They should have relatively complete ultra-low temperature research equipment. Is this from the nuclear industry system? Lei Zhixing, who was troubled just now, was obviously not used to the new boss''s incredible connections, so he just looked at Chang Haonan in shock. The latter nodded: "In the era of planned economy, our country''s cryogenic engineering has always been studied by the nuclear industry system. Later, although many universities also opened cryogenic disciplines in energy, machinery or physics majors, the systems were not as complete as theirs, and most of them still stayed in theory or experiment. room research." "Moreover, it''s not just equipment. They should have accumulated some achievements in low-temperature materials science in the past, which should also be meaningful for this project." The leader of the committee, with Chang Haonan''s current position in the Science and Technology Committee, it is only a matter of words to use the equipment there. As for the entry point of the research... ?Chang Haonan leaned back on the chair: I suggest you start with the theory of thermoelasticity, which mainly includes thermodynamic field theory, thermal conductivity and elasticity. For you, especially Teacher Lei, there should be no particularly high threshold. Even the research direction has been pointed out. Lei Zhixing and Liu Fangping obviously cannot ask for more. After all, they are teachers in Chang Haonan''s research group, and they are not graduate students under Chang Haonan. If you still have to feed it into your mouth, all these years of study will be in vain. Professor Chang, the two of us will move to the dormitory here at Beijing Airlines immediately after we return. Liu Fangping immediately expressed his position: And...if the office is located, it will be with you, right here? Chang Haonan nodded: The new experimental building of our laboratory is still under construction. Currently we can only work in the computing center. Your two offices are downstairs. I will have people clean them up as soon as possible. ?Yun Danfengqing''s answer is completely different in the ears of other people - New laboratory building! You must know that funds in universities have been tight in recent years. Most laboratories, even at the national level, can only use rooms cleared out by others for renovation. Those who choose to enter colleges and universities these days are basically not materialistic people. But not being material and not liking matter are two different concepts. If nothing else, even if you really focus on academics, better material conditions will undoubtedly lead to higher research efficiency. This point is understood very clearly by Lei Zhixing, who has an engineering background from his undergraduate degree to his Ph.D. Foreign researchers can get results that they can just do once or twice, but in their group, it often takes days or even weeks to complete because of insufficient equipment or raw materials. Unknowingly, research efficiency has been stretched so far. ?Thinking of this, he was once again convinced that he had made the right choice. Okay, lets try to get on the job tomorrow! After sending Liu Fangping and Lei Zhixing away, Chang Haonan also breathed a sigh of relief. ?Although he is experienced in projects, this is his first time leading a research team. The other three are new lecturers, but he is actually also a new professor. Everyone has little experience and can only fumble around. Senior sister. ?Chang Haonan looked again at Yao Mengna, who had been silent just now: As for your project, I may have to look for a suitable one... The latter waved his hand: Its not urgent. It just so happens that there is still some finishing work on the capacity ramp-up project of Project 11 over at 112 Field. I have to go to Shengjing in the next two months. As long as I have something to do after the start of the next semester. That must be no problem. The fall semester starts in September. More than two months are enough for Chang Haonan to complete a project. Finding a project for Yao Mengna will be no problem. Speaking of ?Yao Mengna changed into a relaxed tone: You just said that we have a new laboratory building, but I have been at school these two days and I dont seem to have seen any groundbreaking for that building? Of course not in the current campus. Chang Haonan smiled and explained: Beijing City has specially approved a piece of land for our laboratory outside the North Fourth Ring Road to build a joint school-enterprise experimental center, covering an area of ??more than 100 acres. Yao Mengnas eyes suddenly widened. (End of this chapter) Chapter 749 Holding Türkiye’s chips Chapter 749: Taking advantage of Trkiyes leverage Outside the North Fourth Ring Road Hearing this description, Yao Mengna was immediately shocked: Isnt that right next to the school? It must be worth a lot of money, right? The Fourth Ring Road sounds like its very outside, but in fact, with the size and population of Beijing, this place couldnt be considered a suburb even in the 1990s. ??If it''s the South Fourth Ring Road, it''s fine. It''s not much different from a large rural area, but the North Fourth Ring Road is still different. Qinghua, Yanda, Kunming Lake, Old Summer Palace... are all outside the North Fourth Ring Road. ?The current Beijing Airlines and the Beijing University of Science and Technology diagonally opposite are just across the Fourth Ring Elevated Road. Uh...no. ?Chang Haonan realized that Yao Mengna''s understanding was obviously biased, and quickly waved his hand and continued: The land is used exclusively for scientific research sites. Whether its valuable or not doesnt mean much to me. Besides, now that Torch Group is here, money is mainly just a number The turnover of Torch Group is not high, but as a semi-monopoly group, it is not engaged in an asset-heavy industry, and its rate of return is very scary. Furthermore, although they are second-tier state-owned enterprises, state-owned enterprises in this era generally implement entrusted operations, especially after de-administrative restructuring. As long as profits are guaranteed to be turned over, superior units will basically not interfere in the management of the enterprise. Hence, the treatment of Torch Group, from management to researchers, is generally in line with that of major international companies. And Chang Haonan actually has nothing to spend money on. Now, it is not an exaggeration for him to say "I am not interested in money". Thats not what I meant. ?Yao Mengna shook her head: Although its impossible to exchange that piece of land for money, the higher the value, doesnt it mean the higher the government pays more attention to us? ?This statement makes sense, but Chang Haonan still explained with a smile: "The outside of the Fourth Ring Road is not the same concept as the outside of the Fourth Ring Road in Yanda... I say outside the Fourth Ring Road because there is only a fourth ring road in Beijing now. In fact, it is quite far. After the fifth ring road is completed in a few years, it should still be It''s outside." ?Beijings Fifth Ring Road is one of the projects guaranteed for the Olympic bid. It is still in the planning process in 1999, and the groundbreaking will have to wait until more than a year later. ?Most ordinary people who are not well-informed have at most heard about the expansion of the Outer Ring Expressway, but have no specific idea. ??During the meal after his defense, Tang Lintian directly said outside the Fifth Ring Road because he was directly connected with the urban construction and planning department of the capital city. But when it came to Chang Haonan, he still used a concept that is more familiar to ordinary people. ?However, despite what Chang Haonan said, the excitement in Yao Mengna''s eyes still did not diminish. Thats good too. Its a more remote place, which is suitable for calming down and doing scientific research. Ive always felt that Beijing Airlines current place is a bit too lively, and its not suitable for safety or environmental reasons Pfftyou alone said all these nice things. Chang Haonan laughed directly after hearing this: Furthermore, how many people are jealous of our school land...you say its worthless. ??Although Beijing Airlines is located a little further outside than schools such as Beijing Normal University and Jingcheng Post and Telecommunications near the Second Ring Road, it is not an exaggeration to say that every inch of land is precious for its location within the Fourth Ring Road. "What if...I have to brag about my own laboratory." ?Yao Mengna was teased by Chang Haonan, but she didn''t blush. After a short pause, she continued: "Actually, before I went to college, I always thought that research laboratories were the kind that were located in deep mountains and forests or on isolated islands in lakes, unknown to outsiders. Until my freshman and sophomore years, I I always thought that the school might have that kind of secret laboratory outside the headquarters. It wasnt until later that I joined Teacher Dus research group. When I went there for the first time, I looked at the old and small children who were right next to our teaching building. I really felt like my dream was shattered. This is also inevitable. ?Chang Haonan sat on the sofa again and sighed softly: Actually, when Beijing Airlines, and of course Tsinghua University and Yanda University, were first established, the surrounding areas were not what they are now. "It''s just that the city is expanding too fast. Just like many airports, it was still a suburb when it was built. It won''t take many years to be included in the urban area. Our new laboratory, if you look at it from a distance now, it probably won''t last much longer. In the coming years, the surrounding area will also develop. Thisisnt the case Yao Mengna had no idea about what Chang Haonan just said about the outer ring road, but as an outer ring road being planned, she knew it would be very far away. This time, the latter did not explain anything. ? ? China''s development speed after entering the 21st century is probably difficult to imagine even for today''s senior leaders, let alone ordinary people like Yao Mengna. Is the land approved by Beijing for the Torch Laboratory located further south than the Shahe campus of Beijing Airlines in the previous life? In the future Aobei plate, which is near the Olympic Park, it is just a few kilometers away and has just been developed. In the future, the residential population will exceed certain A certain super community in a small country ??Moreover, more importantly, as a gathering place for young students and professors, schools actually have strong business potential. ? Even if a university town is really built in a deserted place, the market will quickly bring various supporting facilities and industries to the surrounding area... But you are right. When planning the new laboratory, we can indeed make some visual and auditory separation from the outside world. Although it is impossible to really build it into the deep mountains and old forests, we can refer to it in terms of atmosphere..." Halfway through speaking, Chang Haonan got a little stuck. He originally wanted to refer to the 624th place, but he had been to that place many times. Although it was very high-tech in nature, it seemed ordinary and even a bit old-fashioned. Like Cold Spring Harbor? ?Yao Mengna suddenly intervened. Cold Spring Harbor is more than ten times the size of our land... Chang Haonan has naturally heard of that legendary holy place for biological research: But the style can be used as a reference... Unconsciously, Chang Haonan and Yao Mengna chatted until noon. Originally, the two of them planned to relive the feeling of eating in the school cafeteria together, but just when they were about to go out, a phone call came in at the right time. Yao Mengna glanced over Chang Haonan''s shoulder and found that the red one should be making the sound. Confidential hotline. The big boss is so busy, Ill go down first and wait for you downstairs. After saying that, she signaled to Chang Haonan, then opened the door and left the office. Hello, Lao Song? ??This phone was only updated this year and now has a caller ID function, so he can see that the call is coming from the Torch Group office. Mr. Chang, I asked the legal department and the archives office of the group to check the things you asked me to check before. There are indeed some findings. Do you want to report it on the phone or..." ?Chang Haonan hesitated for a moment: Lets wait until I go to the company in the afternoon to talk about it. This matter is not urgent and can only take a day and a half. ?The thing he asked Song Jingming to investigate was naturally to see if there were any chips on hand that could be used in Turkey. ?While using EU connections to exert pressure may be effective, it is definitely not a good idea. As a result, China and the EU are simply in a state of embarrassment... ? ? Anyway, it is a pure interest relationship. Let alone allies, it is difficult to even be regarded as a comprehensive strategic partner. It is a literal meaning of each getting what he needs. If you ask the other party to help in this kind of thing, you still have to pay something accordingly later. Secondly, due to the existence of Greece, Turkeys entry into the European Union has been impossible from the beginning. It is completely a unilateral dream. If they wake up too early, it may not be a good thing. Hence, as long as he is not being unilaterally blackmailed like in his previous life, Chang Haonan still prefers direct negotiations. If nothing else, judging from the subsequent situation, Turkey can be said to be the most unstable link within NATO. ?Although the Chinese Huskies are divided into different groups, considering that todays world order is still dominated by the United States, retaining such a troublemaker is generally beneficial to China. ?After having lunch with Yao Mengna, Chang Haonan asked Zhu Yadan to send him back to the Torch Group. In fact, he could have called Song Jingming to the school, but after all, he had multiple jobs, so Chang Haonan thought it would be better to separate the laboratory and the enterprise clearly. Mr. Chang. Song Jingming had already prepared the materials. After receiving a call from Chang Haonan, he arrived at the latter''s office within a few minutes. Tell me, what did you find out? Song Jingming opened the information and then concluded: The most direct relationship is that Ankara University, Middle East University of Science and Technology, Bilkant University and Turkish Aircraft Industries (TAI) are direct customers of our companys software business department and numerical calculation business department. Among them, Middle East University of Science and Technology has also sent a special Team, come to us to participate in the first computing business training. "Um." Chang Haonan nodded noncommittally: Is there anything else? Now is a critical period for the rapid expansion of the TORC Multiphysics market, and it is also approaching the turn of the millennium, a stage when everyone believes in the openness of the Internet the most. If you use software licenses to pressure people, although it can achieve the effect, it will do more harm than good, especially It also involves non-profit research institutions. TAI is a military-industrial enterprise, so it has a lot of room for maneuver. However, if there is a better way, Chang Haonan still hopes to make a fortune silently. "some." ?Song Jingming nodded and then said: "In October 1996, Ankara announced the launch of a series of domestic production plans for main battle equipment involving the navy, land and air force. However, as you know, they themselves are not very strong in this area, so they mainly use foreign cooperation or The model of imitation production. I know this. The Guardian 1 rocket launcher that the weapons industry previously exported to the other side was copied and produced by them called T300, but this matter should have come to an end. It seems that the Turkish army has no plans to purchase updated models? Before Chang Haonan was reborn, he had heard some rumors that the T300 was the production technology obtained through the Varyag incident, but he had asked Rui Xiaoting, whom he had met before, to check it out, and found that this model had not actually obtained a license. Rather, it was simply copied and had been in service since the mid-1990s. It is true that there is nothing to write about. Its true that its not here, but it is in other aspects. Song Jingming explained: "TAI launched a research and development plan for domestic general-purpose helicopters and attack helicopters the year before last. The cooperation partner was the Italian Agusta Company. Among them, the general-purpose model was AC139, which has about 27 key patents belonging to us. According to the joint research and development that year According to the contract signed at that time, although we cannot restrict the recipients of the Italian sides sale of AC139, we can stop their joint production and technology transfer. Thats all? ?This is indeed a good bargaining chip, and the best thing is that Torch Group does not have to directly come forward. But the weight seems to be a bit insufficient. ?Song Jingming shook his head this time: "At least...that''s all that is related to our group. After all, the other party is not a major country, and we have not focused on working there before." Okay, lets do this first. ?Chang Haonan motioned to the other party to leave the information: Go and do your work. (End of this chapter) Chapter 750 I, a central enterprise executive Chapter 750 Me, a senior executive of a central enterprise ??June has passed by peacefully and quickly for more than half. ??Although Chang Haonan is not a member of the preparatory committee of the Aviation Power Group, as the chief planner, there are still many things that need to be completed by him on the eve of the official establishment of the group. For example, preparing for the opening ceremony on July 1st. It is a bit outrageous to say that although Chang Haonan received the appointment a few months ago, this is his first time to visit the office of China Aviation Development. Before the car could stop, Chang Haonan saw a row of staff standing at the entrance of the compound. Although there were no banners or slogans, the posture was obviously ready to welcome him. ?Sure enough, as soon as he got out of the car, one of the tall, square-faced men strode towards him. Chang Haonan saw that this person looked familiar just now, but now he looked up close and saw that it was Lin Zuoming who was transferred to Liming Factory as the general manager just two years ago. ??Due to his outstanding performance in organizing the ramp-up of turbojet 14 and QC/QD130 gas turbine production capacity, he was named the biggest winner in this round of group restructuring and was promoted to executive deputy general manager. ?Of course, this "biggest winner" refers to anyone other than Chang Haonan. As for General Manager Zhu Linyu, he already belongs to the older generation. He was a leading member during the Ministry of Aerospace Industry. He should have retired. However, because there is currently no one with sufficient prestige and qualifications to be the leader, he was invited again. When I came back, it could only be regarded as a smooth performance. Mr. Chang, looking forward to the stars and the moon has finally brought you here! The two shook hands: From Shengjing to the capital, the two of us can always work together, so its fate! In fact, Chang Haonan has only met Lin Zuoming about two or three times in this life. After all, he was transferred from Rongcheng to Dawn relatively late. ?However, Lin Zuoming is obviously very familiar with him. People who don''t know may think that the two have been close friends for a long time. General Manager Zhu happened to be going to report to the superiors on the progress of the groups preparations today. He couldnt come in person, so he appointed me to bring someone to welcome Mr. Chang. As soon as he finished speaking, a row of people standing next to him began to applaud in unison: Originally, Mr. Zhu meant to hold a small ceremony, but I know you dont like these scenes very much, so I kept it simple I have to say that Lin Zuoming really doesnt have much to say about other peoples preferences. Of course, as a manager, this is indeed an ability. In his previous life, he was able to turn the two factories in Rongcheng and Liming from losses to profits, so he must be quite capable. After the handshake ended, the two walked side by side along the main road towards the headquarters building not far away. After I received the transfer order last month, the first thing I did was to ask other team members. When I saw your name, Mr. Chang, on it, I instantly felt at ease..." ?Lin Zuomings exaggerated progress speed is partly due to personal efforts, but Chang Haonans help is definitely indispensable. Not to mention anything else, the previous soft abrasive grinding process and the ion plating production line later acquired from Russia almost helped him clear most of the technical obstacles in the process of increasing production. Therefore, after putting some distance between himself and the others behind him, he boasted without any psychological burden. Now Chang Haonan is completely adapted to this kind of battle. He just smiled and replied enthusiastically: "In the past two years at Liming, Mr. Lin has more than doubled the production capacity of several key models, and he has also freed up spare capacity to ensure the trial production of the turbofan 10 prototype. It has also been a great help to us front-line R&D personnel. I am looking forward to it." Looking forward to your future cooperation. Me too. While speaking, the two of them had already stepped onto the marble steps in front of the building, but Lin Zuoming did not walk in immediately. Instead, he turned back at the door and looked at the courtyard in front of him. The headquarters of the new group was chosen between the West Third Ring Road and the West Fourth Ring Road. ?Because the schedule is very tight, the building is not newly built, but is just expanded based on a former aviation industry property. As for the layout of the courtyard, it is similar to that of most state-owned enterprises of this era, quite satisfactory. ?Of course, as a central enterprise, the size of the headquarters is much larger than that of Torch Group. ?Standing here, I saw that the door that the car had just driven in became much smaller. As the chief planner, what do you think of our new groups facility planning? If adjustments are needed, it should be too late now. ?Lin Zuoming said to Chang Haonan next to him. The latter was stunned As a second-tier state-owned enterprise with a limited scale, Torch Group is located in an office building that does not belong to the group itself. But the Aerospace Power Group is different. Therefore, the moment he heard this sentence, Chang Haonan finally had a consciousness of being a "state-owned enterprise executive". Glory, power. ?At the same time, there are responsibilities. Even if we do not take into account suppliers outside the system and the promotion of the entire Huaxia industry upgrade, there are hundreds of thousands of employees within the group alone. Equivalent to tens of thousands of households. Planning, this is enough. Chang Haonan took a deep breath: Lets go, lets go in first. The offices of the group leaders are uniformly located on the 9th floor. Speak up, Mr. Lin. After stepping out of the elevator, there was a huge sand table opposite. Chang Haonan stopped and observed it for a while, and then asked with some curiosity: I remember that the headquarters of Aviation Industry Group is outside the East Third Ring Road. This is the West Third Ring Road. Did we choose a symmetrical location? Actually, this was meant to be a bit of a joke, but Lin Zuoming nodded very seriously: Yes, it means that our aviation power group and aviation industry group will serve as two wings to support the take-off of the countrys aviation industry. ?Chang Haonan smacked his lips. There is quite a saying. Lets go and have a look at your office. ?Lin Zuoming led Chang Haonan through the long corridor. Because there are rooms on both sides, it looks a bit cold. "Except for the general manager, the offices of the rest of the team members have the same specifications, but the location and interior layout are slightly different. After we discussed it, we decided to give you the innermost one facing the south. It has good sunlight and is quiet. Someone can come up. You dont have to go through your door to find us. While talking, the two of them had already arrived at the door of the last office. ?Chang Haonan opened the door. Indeed, as Lin Zuoming said, the environment inside was quite good. ? And office supplies are readily available, from computer printers to filing cabinets and file bags. There is even a movable blackboard specially placed inside. When I was in Shengjing, I heard that Mr. Chang sometimes likes to summarize your ideas on the blackboard, and I specially asked someone to do it. Chang Haonan used the blackboard at first, with the intention of summarizing the ideas provided by the system himself. However, as the system level got higher and higher, there was no need to do this anymore, and the main purpose became to explain knowledge to others. Otherwise, it would be difficult for most people to follow his ideas. ?This is the one in the office, and Im afraid there are very few opportunities to use it. ??However, the other person also had good intentions, and he nodded to express his gratitude. The two of them sat down on the two sofas respectively, and Lin Zuoming finally got to the point: Mr. Chang, there are still some things we need to discuss with you regarding the group establishment celebration on the 1st of next month. After finishing speaking, he glanced at Zhu Yadan who had been following Chang Haonan. Under normal circumstances, let alone the deputy general manager, even Zhu Linyu cannot be assigned a separate private security guard, so Lin Zuoming does not know the latter''s specific origins. Comrades from the Ninth Security Bureau, its okay, just tell me. Chang Haonan waved his hand. ?Lin Zuoming sat up straight almost subconsciously. Awe-stricken.jpg ?There are not many people who can find themselves as full-time security guards. ??However, the number of people who can make the Ninth Bureau take responsibility will probably not exceed double digits nationwide. Mr. Zhu hopes that we can take the opportunity of the groups unveiling to include some links that are highly related to technology in the celebration ceremony. (End of this chapter) Chapter 751 Officially appointed chief planner Chapter 751 Officially appointed Chief Planner Technology-related links Chang Haonan lowered his head and thought for a moment, and roughly understood why Lin Zuoming was a little anxious today. Although the group''s leadership, except for one chief accountant, all have technical backgrounds, everyone except himself has been completely transferred to administrative positions and is no longer responsible for front-line R&D work. This kind of thing naturally has to be handled by him, the chief planner. Come take charge. Can you please report on the progress of the turbojet 6D and turbofan 10? The progress of these two models is relatively optimistic, and I am relatively familiar with the situation. ?Chang Haonan first thought of the simplest way. "Um" ?Lin Zuoming hesitated: If there is really no other way, its not impossible. Mr. Chang, you have enough influence to go up and make a report. "But what Mr. Zhu means is that after all, the previous models were established under the framework of the Aviation Industry Corporation, and there is no problem in using them for publicity later, but No. 1 is the unveiling ceremony after all, and we still hope to have something completely our own. " Chang Haonan frowned and thought to himself, we are a newly established group that has not even decided on a logo. How can we get our own things? ?But no matter what, as the leader Zhu Linyu said something, he must still respect it, so he had to bury his head and continue to think hard. The history and honor of the Aviation Industry Corporation of China have been handed over to the Aviation Industry Corporation of China. We are actually a new enterprise. If we must find our own things, we will definitely have no hope of reporting on results. After a while, Chang Haonan raised his head again and slowly said: Then we can only draw cakes. ??Although this statement was not yet popular around the millennium, the meaning is still easy to understand. You mean to read the contents of the planning document? ?After Chang Haonan reported the basic plan for the future to his superiors, several secretaries in the office have already completed the preparation of the group''s development plan. "Well" Chang Haonan quickly denied: The planning document is too long, even the abstract is several thousand words long, and the content is too specific and detailed. Most of the people who attended our unveiling ceremony are not from front-line technical backgrounds. Reading it to them is meaningless and annoying. " "What I mean is, why not announce a few priority development models at the ceremony? Firstly, there have been many ups and downs in the restructuring of state-owned enterprises in recent years. When our new group was first established, employees will inevitably be panicked, and we need to inject some confidence into them. Secondly, It is also a gesture to the leaders to prove our determination to operate independently. Prioritize the development of models ??Lin Zuoming, as a veteran of the aviation development system, naturally understood what Chang Haonan meant immediately, but there was a somewhat struggling expression on his face: Mr. Chang, its not that I dont believe in your ability, its just that there is less than a week left before July 1st. If we want to list the models, we must at least establish the project first, right? This time is definitely not enough... Im not talking about the specific model Chang Haonan shook his head, but it was very difficult to explain, so he finally said directly: Well, how about I write a plan after I go back and submit it to the group leadership team for a joint decision? Lin Zuoming''s eyes flashed with hesitation for a moment, but then he thought about Chang Haonan''s various performances over the years, as well as some rumors that although he could not verify, were highly credible, such as the other party having some direct channels to Tianting, etc. Wait, and finally nodded: Thats good, but at least a buffer time of about two days must be left for the preparatory committee, so in terms of time Dont worry, these things have been planned in my mind, I just need to write them out. ?Chang Haonan replied with a smile. The fiery July is coming in a blink of an eye. On the 1st, the unveiling ceremony and founding meeting of the Aviation Power Group were held as scheduled. ?At nine o''clock in the morning, more than 500 people, including superior leaders, guests from sister companies, group headquarters agencies and representatives from various factories, gathered in the headquarters compound. At the top of the steps at the entrance of the building, a podium covered with red carpet has been set up. ?As the passionate march slowly started to play, Kong Fenye, the host of the ceremony and the head of the publicity department of the Aviation Power Group, slowly came onto the stage. Dear leaders, distinguished guests, and distinguished comrades, welcome to the establishment celebration and unveiling ceremony of China Aerospace Power Group After a welcome speech, Kong Fenye first began to read out the members of the group leadership team approved by his superiors. Comrade Zhu Linyu, general manager and party secretary of China Aviation Power Group! Comrade Lin Zuoming, Director, Deputy General Manager, and Deputy Secretary of the Party Committee of China Aviation Power Group! Director and Deputy General Manager of China Aerospace Power Group Chief Accountant, Deputy General Manager There are a total of 7 team members finally determined. Every time Kong Fenye reads a name, the corresponding person gets up. Chief Planner, Comrade Chang Haonan! Finally, Kong Fenye read out Chang Haonans name. Since he currently has no other leadership position except chief planner and is also the youngest, he is naturally ranked at the bottom. ?Chang Haonan took a deep breath, stood up and bowed slightly to the comrades in the audience. The leaders in front had naturally known about the relevant decisions of their superiors for a long time, but even so, many people showed disbelief when they saw Chang Haonan standing up. After all, knowing is knowing, and the impact of seeing it directly is incomparable. As for the employees below, especially the grassroots employees, that is not to mention. "I''ll go...Is that Mr. Chang?" There is no shortage of front-line employees in the audience who have directly worked on projects with Chang Haonan. Mr. Chang in charge of the turbofan 10 project? Otherwise, who else could it be... Now Ive really become Mr. Chang... "But I remember...Mr. Chang is not even thirty yet, right? He has already joined the leadership team?" I am already a chief designer when I am not even thirty yet The whispering below was not too loud, so the host on the stage continued as usual. Next, I would like to invite Comrade Zhu Linyu, general manager and party secretary of Xia Aviation Power Group, to speak! ?Zhu Linyu was already seventy years old, but he was still in good spirits. He came to the stage in a few steps: Comrades, I am honored to serve as the first general manager of China Aerospace Power Group and leave my name in the development history of China Aerospace Engine... First of all, please allow me to briefly review the development process of my countrys aviation power from scratch... " The establishment of the Aviation Development Group marks the arrival of a new era in Chinas aviation industry. Here, I would like to propose three suggestions to all comrades. First, we must unify our thinking, act quickly, and grasp the new direction of the reform and development of Aviation Development. Its about working hard and taking the initiative..." ?Zhu Linyus speech was mainly about telling stories and expressing his opinions. To sum up, in the past, our aerospace engineering project could only be used as a dowry for the aircraft project, but this model no longer meets the requirements of the times. Now we finally have the opportunity to make the decision, and we must make some achievements to show them. So much. There is not much useful information. ??If it weren''t for the open air environment, many people would have started to doze off. After a long speech, Zhu Linyu deliberately paused for a second. ?One second may not seem like a long time, but in the midst of a coherent speech, the effect of a sudden silence for a second is actually no less than that of a thunder explosion in a quiet situation. Sure enough, the attention of everyone in the audience was immediately attracted again. Next, I am going to hand over the microphone to our chief planner and chief designer of the Taihang Engine Project, Comrade Chang Haonan, and he will announce several important decisions of the group! Amidst the waves of applause, Chang Haonan stood up, left his seat, and walked behind the makeshift podium. Compared to Zhu Linyu, his opening remarks were very brief. After thanking the leaders and the group in a few sentences, we went directly to the topic: "When the Turbofan 10 project was re-established, I once said that this model will not only power my country''s two third-generation fighter jets, but more importantly, it will serve as a training ground for my country''s aerospace engine industry and greatly improve the aviation engine industry. There is a problem of insufficient number of researchers and insufficient experience. Now, more than two years have passed, and I can confidently say that the large-scale military training has fully achieved the expected results! At this point, he paused for a moment. ?Hundreds of people below also understood and applauded together. Nearly ten seconds passed before Chang Haonan raised his hands, pressed them down to signal for silence, and then continued: Therefore, after collective research and decision by the leadership team, after the establishment of the group, three key development models will be established. Chang Haonans tone suddenly slowed down: First, it is a third-generation marine gas turbine using a turbofan 10-core engine, which is planned to provide power for a new generation of domestically produced large and medium-sized main battleships. Second, it is a 1,600kw turboshaft engine, which is planned to replace the currently imported TV3-117 turboshaft engine as the power for a new generation of general-purpose and future armed helicopters. Third, it is a large bypass ratio turbofan engine that also uses a turbofan 10-core engine, and is planned to be used in the future new generation of domestic mainline passenger aircraft! (End of this chapter) Chapter 752 Three major models, reassurance for grassroots comrades Chapter 752 Three major models, a reassurance for grassroots comrades After listening to Chang Haonan''s speech, almost everyone from the employee representatives to the leaders attending the meeting had unexpected looks on their faces. ?Its just that the two groups of people have different unexpected points. The leaders, as well as the guests from the fraternal units, mainly think that these guys are quite courageous. In fact, superiors have considered that the Aerospace Power Group is a newly established enterprise, and most members of the leadership team lack experience in large-scale organizational management, and have not set rigid development goals within the framework of the Ninth Five-Year Plan Even if most of the factories under the group existed in the past, changing the organizational structure is a very troublesome task in any era. It is impossible to say that if the group is listed today, it will be able to operate with the same efficiency as in the past tomorrow. . ?Furthermore, most of the group''s current efforts are concentrated on the Turbofan 10 project. Hence, the development direction of these three models is actually an internal decision of the group. In other words, its the intensity you give yourself. Even Ding Gaoheng didnt know about it before. Although Chang Haonan did not guarantee any timetable in his speech, and did not even mention the specific model name, since it was said in such a formal occasion, it was equivalent to drawing a line. ?Especially when leaders come to inspect in the future, if I ask you about the development status of the three models you mentioned before, if you answer that there is no action at all, it will be somewhat unreasonable. For employees, especially frontline technical staff representatives, the feeling is more of a surprise. The five major head offices have now completed their restructuring, with the aviation system in the most special situation. Although the two newly born groups are divided into two equal parts in terms of structure, any veteran employee who has worked in the head office for a long time will know that the units in the aviation development system are different in terms of investment, revenue capacity and remuneration. It is far lower than that of host units. Except for the 606 Institute and Liming Factory in the past two years, which have been slightly better, the rest are basically at the subsistence level. This is even if there are financial transfers within the group. ?Now that the aerospace system is independent, it is naturally a good opportunity for leaders to improve their personal status and expand their performance stage. But for the people working below, they are more worried than happy. After the restructuring of the head office, the group will in principle be responsible for its own profits and losses. ??Although the country cannot really sit back and watch such a large military-industrial group collapse, and will certainly provide necessary support, this does not bring any sense of security to ordinary employees - You mean the iron rice bowl? At this time in 1999, the shadow of the mass layoffs is still hanging over our heads. What if there is a cost reduction and efficiency improvement? Even if I am not laid off, can I still maintain my original salary? ?In particular, the Turbofan 10 project is progressing extremely smoothly. The project research and development work is about to end, and some of the personnel previously seconded to Shengjing will soon return to their original units. For them, if there is no project in hand after they return, they can only receive a basic salary based on their level. It is equivalent to losing a subsidy. And its still a subsidy that accounts for more than half of the income. Such a big gap is not only difficult to accept psychologically. Whats more important is that due to the massive layoffs in recent years, many dual-income families now have only one pillar left, and it is difficult to maintain the familys life financially. Once peoples hearts start to wander, it will be difficult to suppress them. At this time, the three new projects announced by Chang Haonan on stage just served as a reassurance - Although the group''s structure is newly built and its foundation and resources are not sufficient, the future is definitely bright. Marine gas turbines, based on the experience of turbojet 14 aeroderivative combustion, will definitely continue to stay in Shengjing. Turbine shaft/turboprop engine, basically only Zhuzhou has relevant experience, so the 1600kw turboshaft engine will most likely fall into their hands in the end. As for the large bypass ratio turbofan, although it also uses the core engine of the Turbofan 10, considering that only Haojing has copied or licensed the production of large and medium bypass ratio engines, it is most likely to succeed in the competition. Of course, there are far more secondary factories under the Hangfa Group than these, but the rest, such as Rongfa and Guifa, are mostly historical issues arising from the third-line construction period and are backups of several large factories. The research and development capabilities and scale are insufficient, but on the plus side, it is easier to make a living. It has a very close relationship with the original unit. If others eat the meat, they can drink the soup. For example, the production of the entire turbojet 13 machine and some parts of the turbojet 14 has been entrusted to Liyang Group. The ongoing D436 engine localization project also has some accessories such as engine brackets and pods. The parts were assigned to Rongcheng 420 Factory for production. There are also some institutions like 624 that serve the entire group, and any project of a brother unit cannot be separated from their participation. In short, most of the representatives from the units sitting below have found parts of it that are relevant to them. Even if it is not directly benefited, it can at least be seen that the unit is in a prosperous state. The confidence must be there. ??When Chang Haonan gently put the manuscript in his hand on the podium and raised his head to look at the hundreds of participating delegates in front of him, warm applause erupted again in the open-air venue. And this time, it was much more lively than before, even more than at the beginning... ?It wasnt until Kong Fenye walked onto the stage again while applauding that the courtyard gradually became quiet again. Xiao Chang, you gave us a big surprise. ?After returning to his seat, Ding Gaoheng, who was sitting on the leadership bench in the front row, turned back and said with a smile: It seems that in addition to those written in the development plan, you should have more detailed plans? Director Ding, the surprise just now is actually for the frontline workers. ?Chang Haonan leaned his upper body forward slightly and lowered his voice: "Before the Chinese New Year this year, I talked with some comrades workers in Shengjing and found that they generally had concerns about the independence of the Hangfa Group, mainly in terms of remuneration. They were worried that there would be no projects, no tasks, and they would be laid off. spread to." "Even the Liming Factory is in the same situation. After thinking about it, other second-level units will only be more serious. So when we had a meeting with Mr. Zhu and others a few days ago, we decided to take advantage of this opportunity to establish three key development areas. The representative model, firstly, expresses determination, and secondly, it also makes comrades feel at ease. After hearing this, Ding Gaoheng was silent for a while thoughtfully, and then said: Then when the group study documents are distributed, you must remember to emphasize this part with the leaders of each unit. Otherwise, according to my experience, front-line worker comrades will rarely pay direct attention to your speeches. ??Although Ding Gaoheng has been the director of the Science and Technology Commission for many years, he also came from a front-line technical position in the past and has a deep understanding of the situation at the grassroots level. Dont worry, Director Ding. Chang Haonan replied: Studying documents is one aspect. This time we also specially selected employee representatives from each factory so that they can publicize the groups policies in this area through word of mouth when they go back. ?This time Ding Gaoheng just nodded and showed an approving look. "but." ?Chang Haonans tone changed slightly: "I do have some more detailed ideas during this period, but it''s not just about these three models... uh... actually it''s not just about aviation engines." ?At this time, the host Kong Fenye announced that the unveiling session had officially begun, interrupting the two people''s whispering. The seven main leaders of the group and the three senior leaders sitting in the first row of the rostrum stood up one after another and came to both sides of the plaque covered with red satin. ?The signboard of a large central enterprise is of course different from the one in a previous laboratory. It is three meters high and cannot be opened with just two hands. ? And if you just pull it off by pulling it off, it will be difficult to arrange the positions of up to 10 people, and it is not very elegant. ?Hence, there are two red ribbons extending from the top of the card. Pulling **** both sides can make the satin covering them fall off. Then now, I declare! ??Kong Fenye also took the microphone that was originally placed on the small podium in his hand, and then walked down a few steps: China Aerospace Power Group, officially unveiled! ??As he waved his arms, the red silk cloth slowly fell down in the wind, and at the same time, two firecrackers exploded on both sides. Comrades from the Propaganda Department raised their cameras in the distance and recorded the moment when the plaque was unveiled. A new era of China''s aerospace engine industry has begun! (End of this chapter) Chapter 753 aircraft carrier expert Chapter 753 Aircraft Carrier Expert At almost the same time that Chang Haonan officially took up his post as chief planner, ?Northern shore of the Black Sea, Nikolaev. ?Wu Yifan, who has taken off his Buryat attire, is sitting in an inconspicuous Peugeot 605 car, looking out the window at the scenery of the shore that is constantly sweeping back. Fuck, its better to stay in this peaceful place and feel comfortable He opened the car window a crack and felt the breeze blowing on his face. ?Since arriving in the Balkans as a construction contractor in late April, he has been having trouble sleeping. ?Although the Allied operation has come to an end, the complex ethnic conflicts in the Balkans will not disappear. What''s more, among the so-called "peacekeeping" forces, there are probably only two or three countries that have no intention of deviating from each other. Therefore, the Pristina area that should have been set up as a demilitarized zone probably maintains less than two The calm of worship was quickly filled with all kinds of "homemade" weapons of unknown origin. Even Lao Wu himself was asked to carry a batch of assault rifles that had been dismantled into parts in a convoy transporting construction materials. Since the beginning of May, the two ethnic groups, who have already been at odds with each other for a long time, have naturally continued to exchange opinions fiercely on the streets, which even once spread to the camps under construction. ?Until a few days ago, he flew back to Odessa with an An-26 transport plane, and then rushed to Nikolayev by land almost non-stop. In contrast, although society has fallen into chaos and economic development has stagnated, things are still relatively calm in Ermao. Angkor, we dont have to pretend to be Buryats this time? ? Yan Yong, who was driving, slightly turned down the volume of the car CD, and then asked. After staying in the Balkans for more than two months, he suddenly felt a little uncomfortable when he suddenly returned to his original refreshing look. "Need not." Lao Wu rolled up the car window to reduce the amount of wind coming in from the outside, and then replied: This time Im going to meet some old friends Ive known well before, and the identity of the Buryat man has been used too frequently recently. In addition to contacting the Balkans, I have to try to use other identities in the future. Are you going to change your identity again? ??Yan Yong glanced at Wu Yifan next to him with some doubts. In fact, he still doesnt know what the latter is doing in the Balkans, but as a person with a normal IQ, it is not difficult to infer from some details: Boss, you wont Yan Yong''s slightly hesitant tone made Wu Yifan''s heart immediately jump. Fortunately, Yan Yongs next guess was completely free: You didnt really smuggle gold there, did you? "ah?" ?Wu Yifan himself was confused. I had nothing to do while staying there during this period, so I asked around and heard that before the war started at the beginning of the year, a batch of gold was smuggled to other countries for storage ?Yan Yong explained. What are you thinking about Lao Wu breathed a sigh of relief and burst into laughter without holding back: "Let''s not talk about whether this is true or not. Even if it is, it is gold. It is impossible for people to find me, an outsider who has never been to the Balkans before, to do it. I have nothing to do with it. I am really not afraid of it being stolen. " Hearing what he said, Yan Yong also felt that his conjecture just now was a bit outrageous, and shook his head mockingly. ?Of course, he couldnt have imagined that the actual situation was actually much more outrageous The key technical equipment for shooting down stealth bombers was sent out through their hands. Ill see if I can get two Tajik or Uzbek passports over time. Lao Wu breathed a sigh of relief and rolled down the window again. By this time in 1999, although the major countries of China, Macao, Macao, Mao, Mao, Mao, Mao and Mao could not completely escape the chaos caused by the disintegration of the alliance, some order had been restored compared with previous years. At least it is very difficult to create a person as it was in the past. But the situation in Central Asia is still similar to previous years, and there is a lot of room for maneuver. As he was talking, the car had already arrived in front of a grand gate. Black Sea Shipyard. Even before entering the factory, the two of them could vaguely see the towering marine crane in the distance through the car window. It is not difficult to imagine that a decade or so ago, there was a bustling construction scene here. However, now there is no one left. Even on the cement pavement at the gate, there were several obvious cracks, and a few strands of weeds poked out from them, swaying strongly in the wind. A sentry with a gun came over, but he was obviously not alert and didn''t even hold the gun in his hand. Wu Yifan handed over the pass he had prepared long ago, and was quickly let through smoothly. They had been here last year. At that time, they were planning to try to buy the half-completed aircraft carrier, but in the end they found out that they were fighting against their own family, and there was not enough time to prepare materials, so they had to give up. But they came for another purpose this time. After entering the gate, Lao Wu took out his mobile phone and quickly made a call. Lets go directly to the outfitting dock. After ending the call, he said to Yan Yong next to him. ??The Nikolayev Shipyard is very large, almost the same size as a common small town in Eastern Europe, so the two of them walked around and spent more than ten minutes before finally finding the place Wu Yifan mentioned. ??A gray-haired old man in a suit was standing on a high platform, looking at several semi-finished ships docked on the shore in the distance. The most conspicuous among them is naturally the Varyag. Since it has been soaked in seawater for nearly ten years, the surface of the ship''s hull has obviously been covered with a layer of rust. ?Of course, for a giant ship of more than 60,000 tons, this will not affect the hull itself, as long as the subsequent rust removal is completed. However, the mottled appearance reflected by the sea water seems to reflect the end of that superpower. Valery Vasilyevich, its nice to see you again. Lao Wu pushed out the passenger door and strode behind the man. Valery Vasilyevich Babich, a senior engineer at the Black Sea Shipyard, participated in the development and construction of all two Type 1123 and seven Type 1143 aircraft carriers during the Soviet period, including the three Type 1143.5, 1143.6 and 1143.7 aircraft carriers. Project leader for aircraft carriers. The two of them had been in contact as early as when Old Wu Gang came to Ermao. After he officially received the "Friendship Plan" from Chang Haonan, the first thing he thought of was this senior aircraft carrier designer. Hello, Wu. Babic came up and shook hands with him: Are you also here to take delivery of this aircraft carrier? ??Babic looked at the Varyag in the distance again, his eyes filled with complex expressions. For him, the last three Type 1143 aircraft carriers are like his own children. However, No. 1143.5 was basically completed when it was dismantled and was eventually sailed to Russia. However, No. 1143.7 was only about 30% completed and could not even get off the zero slipway. It was finally dismantled by the West through a small trick. Only the last one, 1143.6, remains on the shores of the Black Sea, where it has stayed for 8 years. ?At the time when the alliance had just disintegrated, Babbage was also running around, thinking about completing the ship. But as Factory Director Makarov said, he quickly realized that this was completely impossible after losing the entire alliance''s industrial system. Therefore, seeing that the ship was about to be taken away by the Chinese, he was reluctant to part with it, but he was also somewhat relieved. ?Although the buyer said that he wanted to build a marine amusement park, this was obviously a very half-hearted excuse. If you buy it back, 80% of it will be continued construction. ?Besides, to put it another way, even if it really becomes a maritime paradise, it would still be better than the Ulyanovsk being dismantled in the end. No, the person who bought this aircraft carrier has nothing to do with me. Wu Yifan shook his head: I came here to take away something more valuable. Something more valuable? ??Babiqi glanced at Old Wu, who was slightly shorter than him, with some curiosity: You mean the cruiser? Or the two hovercrafts? The cruiser he is talking about is the fourth ship of the Type 1164 cruiser. 96% of the overall project has been completed. Compared with the Varyag, which needs to go back for renewal, that ship can even barely sail away after repairing it locally. . As for the hovercraft, naturally they are two large European Bison-class hovercrafts that have also been 90% completed. The Greek Navy is currently interested in purchasing them. But after asking, he denied it himself before waiting for the latter to answer: No, they cant be more valuable than the Varyag ?Wu Yifan also smiled after hearing this: Of course Im not talking about those old ships. In fact, he did ask through Chang Haonan before whether the superiors were interested in several other unfinished ships at the Black Sea Shipyard. But in the end the answer was negative. In terms of immediate combat capability, China has already ordered four Type 956 destroyers, of which the first two have been completed and will return to China soon to be commissioned. China is not in a hurry to spend a high price to buy another one. Although the combat effectiveness is stronger, there is no technical substitute for it. Poor main battleship. As for large hovercrafts, there is indeed a demand in the country, but when sea control cannot be guaranteed at the moment, it is obviously not a top priority, and there is no need to compete with the Greeks. Babic did not reply, but just looked at Wu Yifan, waiting for his next answer. Valery Vasilyevich. After a brief pause, Wu Yifan continued in a slightly bewildering tone; If I say, I have an opportunity here that allows you to complete the aircraft carrier yourself...are you interested? (End of this chapter) Chapter 754 Pack up the Black Sea Shipyard and take it away Chapter 754 Pack up the Black Sea Shipyard and take it away We are all smart people. Furthermore, Babbage knew Wu Yifans identity. ?Although I dont know the specific details, at least I know that he is actually a Chinese ?This is also easy to understand. You want to abduct others into the country. Unless you use the traditional craft of sap and sack, you have to make friends before you can start talking. Besides, this kind of thing cannot be hidden. You, a Buryat, have made great efforts to hire someone from Ermao to work in China... What about the liar? The spirit of internationalism is not like this either. Therefore, when Lao Wu said the sentence just now, he already understood the meaning of it. ??This is because he wants to take himself away with the aircraft carrier. From a work perspective, this is indeed the best solution. To the Chinese people, the Varyag was said to be 60% complete, but in fact, someone sneaked in and damaged the power cabin equipment. Shipyard employees have been on the lookout over the years, and the pipelines and cables are basically rotten. There were so many problems, some of them even required re-cutting the deck to deal with them. Although the Chinese people who won the bid in the end bought back a large amount of technical information, anyone who has ever done a project knows that holding the drawings in their hands is completely different from having a master carrying them hand in hand. concept. For Babic himself, going to China is almost the only way to realize his dream. After the disintegration of the Alliance, it is impossible for any of the Union Republics to build an aircraft carrier alone in the foreseeable future. ??The Russians may still be able to produce large submarines and icebreakers, but that''s not what they want. Although countries that may build aircraft carriers, whether Britain, France or the United States, have extended an olive branch to him, it is obviously impossible for him, who still has a Soviet passport, to intervene in the production process of warships. The rest are China and India... Normal people know how to choose. But this is only one aspect. From a life and emotional perspective, Babbage is still a little hesitant. He has worked in Nikolayev for nearly 40 years, and has dedicated most of his life to this land on the Black Sea. Now he suddenly has to abandon it all and go to a foreign country where he is unfamiliar, and he also faces language, Many issues such as living habits, job security, and separation from loved ones... ?Looking at Babic, who was bowing his head and remaining silent, Wu Yifan quickly realized his concerns. "Dear Valery Vasilyevich, for senior professional and technical talents like you, we do not simply send you abroad through labor dispatch and ignore it, but we also have a complete set of accompanying security systems. Ensure that the living conditions of you and your colleagues will not be the same as before the disintegration of the alliance. The amount of information contained in this sentence is huge. Salary and other things are secondary, the key is "your colleagues". Meaning that someone has already passed by before? So much so that Babics eyes, which were full of hesitation just now, suddenly turned curious. ?However, even as a technician, he knew that he should not be too eager in this situation, so he was not in a hurry to speak, but waited for Wu Yifan''s next words. ?Then, the latter was even more of an old fox in this regard. After arousing Babbage''s interest, he directly played hard to get. ??Lao Wu turned around and looked at the warship docked in the distance. As he walked towards it, he changed the subject and asked: Can we go to Pier 1 and have a look now? They are now at the edge of the outfitting dock and can see the panoramic view here. Pier 1 is where the Varyag is outfitted. "Can." The sudden change of topic made the old comrade stunned for a moment, and he nodded immediately: Our factory is still in the process of handover with Luchuang Group. If we want to board the ship, we still need to obtain the other partys consent, but if we just stroll around the dock, its still no problem. Lets go, then get in the car? ??Wu Yifan turned around and got back into the car parked not far away with Babic behind him. Logically speaking, external vehicles should not be allowed to enter places like the interior of the outfitting dock. ?But at this moment, except for the sentry at the door who looks a little bit like that, no one is paying attention to it. ??Babiqi, who was sitting in the back seat, just brushed his face and was let through without any hindrance. Damn it, this boat is really big... Yan Yong, who didnt need to pretend to be a foreigner, subconsciously sighed directly in Chinese. They had tried to take pictures of the Varyag before, but it was basically a temporary act and they had never observed the ship at such a close distance. ??And if you just look at it from a distance, it is difficult to experience the sense of oppression brought by an aircraft carrier. Mainly Soviet-style ships tend to be designed with low freeboard, so the dock height is correspondingly low. ?In this case, for an aircraft carrier with ultra-high freeboard, hull flaring, and ski-jump deck, you almost have to raise your head to the sky to see the whole picture. ? Even a larger container ship or oil tanker would be hard-pressed to bring such a feeling of arrogance. ??Babic couldnt understand Chinese, but even just from the tone and emotion, he could guess what Yan Yong was sighing about. This is only a medium-sized aircraft carrier. If the 80,000-ton Ulyanovsk can be built as usual, it should be in service by now...it will definitely be much more spectacular than this ship. Unfortunately, the only one left with large aircraft carriers now is the U.S. Navy ??Wu Yifan was keenly aware of the regret and loneliness in Babbage''s tone. I think there will be a chance to see it after the Varyag. ??As a tycoon, of course it is impossible for him to know what the Chinese Navy''s future plans are, and he is not even sure if there are any other project plans besides the renewal of the Varyag. But at this time, the focus is obviously to play the emotional card according to Babbage''s wishes. As for whether the content of the card is true or false, it is secondary. Sure enough, the other party finally lost his composure. Thats right, Wu. ??Babiqi moved his eyes from the nameplate that read "" to Lao Wu: You just said, my colleagues? Have engineers from the Black Sea Shipyard already gone to China? Lao Wu has been waiting for this question for a long time, but in order not to appear too deliberate, he lowered his head and thought for a while: The Friendship Plan is for the entire CIS, and I am only one of the people in charge, so I dont know the whole situation. In fact, the main executor of the friendship plan is himself. This sentence is just a wave of bluff to show that we have recruited many Soviet-era technicians, and you dont have to worry about being alone when you get older. Following that, he continued: However, as far as I know, comrades from Antonov Group, Ivchenko-Progressive Design Bureau, Azov Steel Plant, Voroshilovgrad Diesel Locomotive Factory and other units have participated in the friendship program. , and some of them have even started working in China. This is another typical concept of sneak exchange. ?During the Soviet period, these units were all regarded as nine enterprises under the Ministry of Defense Industry. Just like the several major military-industrial groups under the Commission of Science and Industry, they could be said to be "colleagues" with each other. ?But now this system has long since fallen apart, and each company has long been independent. Furthermore, it is completely far-fetched to say that they are Babbage''s colleagues. ?However, at this time, the latter had no time to think about these details. ??Because Wu Yifan''s words have already shown that many technical personnel from CIS countries are already in China, which has reduced his concerns just now by more than half. Also, Valery Vasilyevich, there is one more thing. After discovering that Babbage had begun to waver, Lao Wu quickly pursued the victory: "In order to allow the technical staff who have gone to China to adapt to life as soon as possible, the Friendship Plan will arrange a community that is closer to the Soviet style. In addition to necessary security, translation and work docking, many service positions in the community will be reserved Relatives who are willing to come to China together can also solve their worries. " Of course, if anyone wants to experience Chinese culture and life, we also welcome them and will provide special language adaptation courses. ?At this time, the remaining half of the worries were basically swept away. "but" Babiqi was almost convinced in his heart, and all that was left was some struggle, or in other words, reserve: "You just mentioned that the technical staff of so many companies specialize in different businesses. After arriving in China, their working locations should also be different. For example, I am responsible for shipbuilding and I must work in a coastal area. I''m afraid Theres no way you can live with comrades from the aviation and mechanical departments, right? Its natural. ?Wu Yifan smiled and replied: So, it depends on your ability, Comrade Valery Vasilyevich. "What''s the meaning?" Babic looked puzzled. I know that after the disintegration of the alliance, the Black Sea Shipyard can barely survive by relying on civilian orders such as small bulk carriers and barges. Most of the original engineers and technical workers have lost their jobs, right? ?Lao Wu is just a picture: If you can bring all these technical personnel to China, wouldnt it be possible to build a community for you in a coastal city? (End of this chapter) Chapter 755 Split up Chapter 755: Split up Hearing this sentence, Babbage was shocked. ??He originally thought that the other party just wanted to drag him to China, but it turned out that they wanted to pack up the technical staff of the Black Sea Shipyard and take them away? You must know that Babbage has worked in the shipyard for so many years. He must be capable and qualified, and his prestige is no less than that of the factory director. Especially among engineers and senior skilled workers. ??If he really wants to take action, not even the factory director can stop him. Wrong. ?Even the factory director may be taken away by him... In shock, he even forgot to argue with the other party, but said directly: "Are you sure... you can let me go and pick someone?" Even after eight years of hard work, there are still tens of thousands of employees in the shipyard or in companies affiliated with the shipyard. Plus family members Well, it wont be much more if you include family members. In state-owned enterprises under the Soviet system, most peoples marriages were settled internally, which did not create too many idle people. Of course, there are common problems in large enterprises. The level of technical personnel varies greatly, and there are not a few who are just making a living. It is definitely not possible for China to want everyone. There must be an assessment mechanism or a probation period. And no matter how good the conditions are, there will still be a considerable number of people who are unwilling to leave their homes. But after all, in less than a minute, Babbage could think of almost three digits of names, skills, intentions and characters that were reliable. I really want to let him go and mobilize, and let''s not say, hundreds of people are still easy. Wu Yifan was naturally overjoyed when he saw Babbage''s reaction. You must know that the contract signed between him and Chang Haonan is based on headcount. ??And outstanding technical experts like Babbage will need additional money if they succeed. ??Although the first batch of places that the two of them had decided on was only 1,000 people, Lao Wu was sure that as long as there were no problems with the people they pulled over, even if they exceeded the quota, the country would still accept them. As for the proportion of people who can pass the assessment... Lets put it this way, in the general environment of Ermao in the 1990s, these people had technology, resources and channels, but had not yet made it to Western countries, which was equivalent to passing a strong screening process. ?Although I dare not give a complete guarantee, the reliability of this group of people should not be a big problem. ?Especially at this time in China, personal psychology is also changing. If the protection is not equal, comrades are more reliable than compatriots. ?However, Lao Wu did not express his true thoughts on his face: "Of course it won''t work if you let go... We will also conduct preliminary assessment and screening." He shook his head, and then changed the subject: "But you can rest assured that our standards are the same. As long as the person you find has real talent and learning, I can guarantee to send him there even if it is beyond the quota." ??Babiqi looked Wu Yifan up and down again: In this case, I can try it when I go back, but... "Although we are indeed familiar with each other, to most people in the factory, you are still a stranger, and it is difficult to show up in person. Regarding the conditions just mentioned, if you can come up with something useful Proof, or your countrys official statement, may be more effective. ??Babich has indeed been persuaded, but this does not mean that he has lost his mind. ?The other party made a blank promise, and it would be okay to let him go and have a look by himself. After all, just with the name Valery Vasilyevich Babich, even if he left the Black Sea Shipyard and did not stay in China, he would not have to worry about coming back or finding a job in other CIS countries. . But it is impossible to do this with hundreds of employees. What should I do if something goes wrong and I cannot return home? The risk is too great. ?This has nothing to do with whether you trust Lao Wu himself, it is just the normal instinct of a senior engineer. ??Wu Yifan also didn''t expect that the old man in front of him looked like he was stunned just now, but now he suddenly took over an army. ??However, the problems mentioned by the other party do exist. Of course, no problem. Old Wus answer was very firm: But it will take time for the materials to be delivered over there, Although the country has not given him any guarantee in this regard, the most taboo thing in this situation now is hesitation. ?Any hesitation may be considered by the other party as a guilty conscience. You can only agree first and then think of a solution. Having reached this point in the serious conversation, there will definitely be no results from todays conversation. The two of them had just walked around Pier 1 and had seen the aircraft carrier with their own eyes. Old Wu was naturally ready to leave and go back to contact Chang Haonan to see how to deal with the people at the Black Sea Shipyard, especially Babbage. This big guy has made a fortune... No, please go to China. However, at this moment, a group of people suddenly walked down from the boarding ladder connected to the stern of the aircraft carrier. Boss Wu! Chinese with a slight southern accent rang in his ears, making Wu Yifan turn around subconsciously. There are not many people who would directly use the title "Boss Wu" here. ??A gray-haired man wearing glasses walked quickly down from above. ??Wu Yifan recognized him without surprise. ?Xu Pingzeng, the boss of the Luchuang Group that bought the Varyag. Hello, Boss Xu. Lao Wu stepped forward and shook hands with the other party. The communication between the two people naturally does not need to use awkward Russian. These days, Chinese can still have its own encryption properties abroad. Neither of them asked the other what they were doing here. They are all working for the superiors, tacitly. Mr. Xu, are you ready to tow the ship back? ??Wu Yifan asked with a smile, looking at the several barges busy next to him. ??Although he had previously thought about competing with the other party for the Varyag, he quit midway and there was no spark between him and Lu Chuang. Therefore, the two of them were colleagues who had had contact and had a good relationship. Of course, saying he is a peer is a bit flattering for the current Lao Wu. Xu Ping was once a serious red-top businessman, but he is still fighting for it. There are still some finishing touches to be done. Xu Ping once took off his glasses and rubbed the corners of his eyes: It is expected to leave next month, or September at the latest. ??The route information of this kind of ocean voyage is public, and it must be reported to the countries along the way in advance. There is no need to hide it. Then I would like to congratulate Mr. Xu on your safe journey in advance! Lao Wu was definitely sincere when he said this. For him, whether it is from the perspective of family and country feelings or personal interests, he definitely hopes that the ship can return home safely and safely as soon as possible. ?His previous series of layouts were all centered around aircraft carriers. ??However, after hearing his words, Xu Pingzeng sighed sadly: Ill borrow your good advice, brotherbut this is exactly what Im worried about now In an instant, Lao Wus killer instinct was activated: How to say? "Even if everything goes well on this voyage, it will take at least seven or eight months to use a tugboat to tow an unpowered hull all the way back from the Black Sea, and we will have to pass through high-risk waters near the Gulf of Aden. I''m worried. ...Safety issue..." ?Wu Yifan frowned: Does anyone dare to scuttle this ship? That wont happen. Xu Ping once shook his head: I am worried about the equipment and information on the ship. "You know, over the years, even if the Varyag has always been parked on the shore, external forces have been trying to sabotage the ship itself, as well as related technical documents and drawings. Now we have bought it and are preparing to tow it back, and we have this idea. Im afraid there will be no shortage of people. Thenwhat does Boss Xu mean? ?Wu Yifan raised his eyebrows. He had actually thought of a possibility, but he still asked. Boss Wu has been in Eastern Europe for many years and has a much richer career path than I have. Xu Ping once took him to a location slightly further away: Can you think of a way to transport some key equipment and data on the aircraft carrier back to the country through other means? "this" ?This request is similar to what Lao Wu had just guessed. But there are more links involved. I have to think carefully...please ask for permission. (End of this chapter) Chapter 756 Progress of the Science and Technology Commission Chapter 756: Progress of the Science and Technology Committee After finishing the conversation with Xu Pingzeng, Lao Wu returned to the car. As for Babic, he said that he still had some things to deal with at the outfitting dock, so he did not go with him. Angkor, how is it? Is it going well? Yan Yong asked as he turned the key to start the ignition. "smoothly" Lao Wu didn''t know how to define the result of this wave for a while. ??Although he failed to convince Babbage right away, he still made substantial progress. More importantly, he also made a fortune from the Varyag order, which he had originally thought had no hope. Although what he just said was to ask his superiors for instructions, the superiors obviously had no reason to reject him: It went pretty well... Then shall we go to Crimea next, or... The car has started driving slowly. According to the original plan of the two, this trip was to collect resources for the domestic aircraft carrier program. After the trip to the Black Sea Shipyard, the next step was to negotiate for the purchase of key technical data for the Nitka aircraft carrier training system, and finally flew to Murmansk tried its luck to see if there were any unemployed veterans who were familiar with the operation of aircraft carrier formations. ?However, for Lao Wu, the most important of these three things is the group of technical personnel at the Black Sea Shipyard. So the other two things can be pushed back. The main reason is that the friendship plan is directly connected with Chang Haonan. Although the capitation fee is not high, the return period is very short. It is almost a one-hand payment and a one-hand delivery (person). Anyone who has worked as Party B for an official will know how rare this is. Under normal circumstances, those who can settle their accounts by the end of the year are considered living bodhisattvas. It is not uncommon for those who procrastinate for three to five years to do so. There is no rush to leave, we have to stay in Nikolayev for a few days, find a place to stay first, and then find a way to contact the country. While speaking, Wu Yifan took out an atlas printed in the Soviet era from the glove box, found the Nikolayev page and started flipping through it... A few days later. The newly established headquarters of China Aviation Power Group. Chief Planner''s Office. Chang Haonan was holding a red and blue pencil and quickly marking on the documents he had just received from Torch Group in the morning. The document naturally comes from Wu Yifans Black Sea Import and Export Trading Company. The content is that first of all, the Black Sea Shipyard is quite satisfied with the conditions offered by the country, but after all, they have to leave their hometown, so they still hope to provide some more convincing evidence to prove that these conditions are real and not a pig-killing plate. Secondly, Luchuang Group hopes to share the risk and hand over some key equipment information on the ship to Lao Wu and transport it back through his previous smuggling route. ?From Chang Haonans perspective, these two requests are reasonable and can be agreed to. ?However, according to the regulations, he still had to apply to Ding Gaoheng. ?Putting the documents scattered on the table into his briefcase, Chang Haonan prepared to contact Zhu Yadan who was waiting below to pick up the car. ?But as soon as he reached out his hand, the phone rang by itself. ?He was stunned for a moment, then picked up the receiver of the intercom phone. Hello, I am Chang Haonan. Mr. Chang, I just received a notification from the guard that Director Ding of the Science and Technology Committee has arrived at our group. ??The voice of Zhang Liangping, deputy director of the Second Comprehensive Division of the Group Office, sounded on the other side of the phone. The so-called general office department is actually the secretarial team of the leadership team. According to documents issued by superiors in the early years, full-time secretaries are not allowed below ministries and commissions. After the head office was restructured into a group, in response to the call from superiors for de-administration, the name was changed from the General Office Secretariat to the General Office Office. The first office is responsible for connecting with the general manager, while the second office is responsible for connecting with six other people. As for why it is the turn of a deputy director to take over Chang Haonan, who is at the bottom of the team... Because there are a total of 7 people in the second office, except for one director, they are all deputy directors. Okay, I get it. Chang Haonan turned back and glanced out the window, and sure enough he saw Ding Gaoheng''s black Audi, sandwiched between two other Santanas, slowly driving in from the outside. As the director of the Science and Technology Commission, Lao Dings security level was similar to that of Chang Haonan today, not to the point where he had to be surrounded by people everywhere he went. As a superior with a business guidance relationship, it is reasonable for him to make a "surprise attack" one week after the group was officially established. Furthermore, Chang Haonan is not just being sentimental. He has reason to believe that Ding Gaoheng came specifically to see him during this trip. Because just in the past two days, most of the team members have been conducting research in the factory below. Only he and the other chief accountant stayed at the Beijing headquarters because they had specific work at hand and couldn''t leave. So, after thinking for a moment, Chang Haonan took out the packed documents again, stood up and opened the office door. Sure enough, just a few minutes later, Chang Haonan heard the sound of the elevator arriving at the floor. ??The messy footsteps gradually slowed down, and finally only Ding Gaoheng walked into the office. Director Ding. ?Chang Haonan stood up. When the leader came to visit, it was naturally impossible for him to continue sitting in the office chair. Instead, he and Ding Gaoheng went to the sofa together. He took advantage of the situation and poured a cup of tea for each of them. Xiao Chang. Ding Gaoheng picked up the tea cup and asked while stirring the tea leaves with the lid: Do you think you can adapt to the work during this period? "fine." Chang Haonan said and sat on another sofa: Currently, I usually deal with Torch Group or school matters in the morning, and then come here in the afternoon. After all, I have led projects in Hangfakou for more than two years, and I am familiar with the business, so I got started quickly. In fact, the chief planner should not have much work that he is directly responsible for, and he is relatively idle among the team members. But now it just happens that the group has just been established. In this special period, we will definitely still be busy. Ding Gaoheng leaned on the back of the sofa, folded his hands in front of him, and nodded slightly: "Well...you have to run in three directions now, which is really a bit stressful." Chang Haonan looked at this posture and clearly had something to say, so he did not interrupt. Sure enough, after a few seconds, the other party sat up straight again: What do you think about officially transferring Torch Group into Aviation Power and becoming a subsidiary? Before the aviation development group was formally established, Ding Gaoheng actually said this - ??The Torch Group was originally established under the Academy of Sciences as a temporary measure. Because Chang Haonan''s personal influence was still limited at that time, it was impossible for the higher-ups to set up a new state-owned enterprise specifically for him in the context of the restructuring of state-owned enterprises. They could only use a company under the Academy of Sciences that was about to go through the liquidation process to rebirth. But now the situation is completely different. Chang Haonan''s status has been like a rocket ride in the past two years. He himself is already the leader of the Aviation Development Group, so there is no reason to continue to insert the Torch Group into the Academy of Sciences system. ?However, Chang Haonan did not expect that the action would be so fast. He originally thought that it would be early next year at the earliest. Of course its better from my point of view and saves a lot of energy, but ?Chang Haonan hesitated for a moment: Aviation Power Group has just been established for a week, and it snatches enterprises from brother departments. Will it be harmful to our Science and Technology Commission..." Enterprises under the Academy of Sciences belong to the Ministry of Science and Technology system, while Hangfa Group belongs to the Science and Technology Commission system. ?Although the relationship between the two parties has always been good, when it comes to Chang Haonan''s current position, some influences must be taken into account. The Science and Technology Commission has grown rapidly in recent years, and he doesnt want to give an overly domineering impression. You dont have to worry about this. Ding Gaoheng waved his hand and interrupted him: "When we were preparing to establish the Torch Group, I made an agreement with Song Jian. When you can take charge of your own affairs, no matter which system you are in, the Torch Group will be transferred directly to the department you directly manage. Although the Science and Technology Committee has been reorganized into the Science and Technology Committee The ministry was over, and Song Jian also resigned, but it was still effective. " Furthermore Ding Gaoheng lowered his volume slightly: This matter, including the inclusion of Electronic Technology Group and Huaxia Machinery Industry Group into the management of the Science and Technology Commission last year, is actually pushed by the higher-ups, and I am only responsible for the implementation. Judging from the current tone, if nothing else happens, by the next organizational adjustment, the ranking of the Science and Technology Commission is likely to move up one or two places, and it will become one of the key departments. ?Chang Haonan''s eyes widened slightly. One or two further ahead, that would be fifth or sixth. If this trend develops, the Science and Technology Commission is likely to take off its military hat early and become a completely local agency. ? And Ding Gaoheng is likely to take another half step forward by then and take full charge of industrial and information construction... This is of course good news for him. (End of this chapter) Chapter 757 Expand production capacity for J-11 Chapter 757: Expanding production capacity for the J-11 Ding Gaoheng came here today not specifically to merge Torch Group into Aviation Power. ?Just now Chang Haonan accidentally mentioned that he wanted to run in the school, Torch Group and Aviation Power, so he brought it up. Director Ding, actually before you came just now, I originally planned to go to the Science and Technology Commission to find you. After some pleasantries, Chang Haonan took the initiative to switch to the topic. "oh?" Ding Gaoheng suddenly became interested: Is there anything else you want to report to me? This time its really not a report. Chang Haonan stood up as he spoke, picked up the documents from his desk, and handed them to Ding Gaoheng: Its the friendship plan and the Varyag thing. "The news sent by Wu Yifan in the morning said that he persuaded Valery Vasilyevich Babich, the chief designer of the Varyag and Ulyanovsk factories. , and through him, he mobilized a large number of employees of the former Black Sea Shipyard who had lost their jobs. Ding Gaoheng, who had been looking down page after page, suddenly raised his head, his eyes flashing with excitement: This is a great thing. Now is the critical stage of the domestic shipbuilding industrys production capacity increase. If these old experts and technicians can come to China, it will be very helpful to improve our process technology. "Last year, the Navy and Lianhai Shipyard sent a group of military representatives and technical experts to the St. Petersburg Northern Shipyard to inspect. They found that those old Soviet-era ships, even if they had been soaked in water for nearly ten years, were inferior in craftsmanship and quality. The ships that have been built in the past two years are much better, but the only difference lies in these master craftsmen! Chang Haonan had heard of what Ding Gaoheng said in his previous life. Mainly reflected in the four modern-class destroyers bought back. The quality of the 136 and 137 ships that were continued to be built was much better than the 138 and 139 ships that were later built. ?Of course, except for high-level experts like Babbage, it is impossible for most people to directly participate in core naval projects such as aircraft carriers. But the construction of other main battleships, including civilian ships, also has room for them to use their remaining energy. Although China is already the world''s third largest shipbuilding country in terms of shipbuilding tonnage, at the turn of the century, "big but not strong" is definitely not a casual statement. Most of the high value-added orders are still in the hands of Europe, Japan and South Korea. Lao Wu also mentioned this in the report. Chang Haonan replied: So I am also considering that if there are indeed enough people in this batch who meet the requirements, based on the 1,000 places in the first phase of the Friendship Plan, we can expand the number as appropriate and try to absorb this batch of precious technical personnel. " However, because there were so many people this time, they still have some concerns about the conditions we gave. You mean...there are still some dissatisfactions? Ding Gaoheng put the documents on the coffee table: Objectively speaking, even compared with the Soviet Union in the late 1980s, our countrys current material and cultural level is indeed lacking to a certain extent, but... As a result, only halfway through what he said, Chang Haonan quickly waved his hand: No, noits not so much that the conditions are not good enough, I think the conditions are a bit too good. "After all, Lao Wu''s company is just a small company engaged in import and export trade. People will inevitably feel that it is not reliable enough. You also know that in the past few years after the disintegration of the Soviet Union, these old workers have been miserably cheated by private companies. What is wrong with them? Resistance is also normal. Hearing this explanation, Ding Gaoheng was immediately happy: This is easy to handle. Although it is not convenient for our officials to come forward directly, we can ask comrades in the shipbuilding industry system to print some bilingual brochures in Chinese and Russian, and attach the communities we have prepared and factory photos. Our country is lacking everything now, except for old factories like those in the Soviet Union. They are everywhere ??Although Ding Gaoheng has not personally been to the CIS countries, it is not difficult to guess the mentality of employees there. After nearly ten years of hard life, it is impossible to say that I have no idea when I first see this familiar atmosphere and environment. ?With some encouragement at this time, many things will fall into place. ?At this time, there were not as many scams as there were later, or in other words, although they existed, they were not well known. So when it comes to vigilance, its really just that. Having a decent brochure and photos, it is very persuasive. This is feasible. Chang Haonan also nodded: Then Ill ask Lao Wu to stabilize the other party first, dont act too hastily, and wait until we send the promotional materials over before we take any action. After this problem is solved, there is nothing more to say about the second thing. ?Xu Pingzeng and Wu Yifan have both agreed. It is said to be an application, but in fact it is just a notification. Furthermore, from Chang Haonans perspective, the formers concerns are very reasonable. ?In the original timeline, when the Varyag was being towed back to China, it encountered several situations where foreign personnel tried to illegally force board the ship, and even succeeded. ??It''s just that the Varyag bought back in the last life really only had a hull, and there was really nothing on it that could be further damaged, so it didn''t suffer any actual damage, it was just a bit embarrassing. But now Xu Ping has saved a lot of key equipment and data, which are currently on the ship. If they are captured or destroyed, it will be a big loss. As for disassembly, handover and transshipment, it will take about 1-2 months... For a long-term industry like shipbuilding, which is often counted in years, it is obviously not critical. ?Originally, according to Chang Haonan''s idea, since the departure time of the Varyag to return to China will be slightly delayed, there shouldn''t be much going on before the National Day. However, plans cannot keep up with changes. At the end of August, as the new semester of colleges and universities began, Chang Haonans work focus gradually shifted from business management back to the laboratory. ?Yao Mengna also completed the first phase of the production capacity ramp-up task at Factory 112, increasing the output of the J-11 by about one-third. According to the previous agreement, Chang Haonan needed to prepare a new topic for her. ?However, this time, Yao Mengna came back with her own problems. Professor Chang, I found a problem. ?Yao Mengna, who had just taken off her hat and put on a lab coat, sat on the chair opposite Chang Haonan''s desk. Whats the problem? Chang Haonan raised his head. I found that I had gone into a misunderstanding. Yao Mengna frowned slightly, obviously troubled by something: I have always thought that the efficiency of the No. 11 Pulsating Production Line did not meet the expected targets because I failed to control the working hours distribution coefficient of each link. "But later I discovered that the problem actually lies in the entire assembly process, especially the quality inspection process after each link. The amount of data is too large, and the key data output by different inspection links are different. As a result, this step cannot be solved by an automated system. Although it was entered into the computer, in the end it was still checked manually..." ?Chang Haonan was not in a hurry, but listened to Yao Mengna''s slightly confusing explanation while sorting out what the other party wanted to express in his mind. Simply put, although a large number of sensors are added to the production line, the data returned by the sensors is too complex and cannot be easily analyzed directly. Especially for issues such as deformation, flatness, dimensional fit, missing rivets, and re-riveting during the riveting process, the data generated has a very high dimension. ?For example, missing rivets will leave a hole in the location of the rivet hole. For humans, it is easy to take a look, but for automated equipment, it is difficult to identify. In the end, it was just a matter of workers going to the work station to inspect, instead of taking photos, and then workers checking the photos. On the contrary, it was an extra step. So, I thinkonly by using computers to replace people to complete this process can the theoretical potential of the pulsating production line be fully realized! ?Yao Mengna took a sip of water and finally concluded. (End of this chapter) Chapter 758 manifold learning Chapter 758 Manifold Learning The question raised by Yao Mengna is not difficult for Chang Haonan to understand. Its just difficult to solve. To be honest, this involves a series of issues such as text mining, data visualization, information retrieval, data mining, machine learning and even artificial intelligence. ??If we can achieve fully automated production as envisioned by Yao Mengna, it will be Industry 4.0. At this point in time in 1999, it was obviously unrealistic. But the fact that it is impossible to fully realize this whole set of things does not mean that there are no parts that can serve as breakthroughs. ?For example, data mining and information retrieval are very hot research directions around the millennium. The core purpose is to extract valuable knowledge from massive databases and large amounts of complex information, and to further improve the utilization of information. In fact, before Chang Haonan was reborn, the field of aircraft design and manufacturing had already begun to apply this technology, and he himself had been exposed to a lot. But at that time, as an ordinary technician with an engineering background, he did not have much theoretical foundation. As for the system, you first need to build a complete and feasible idea. This resulted in a lot of nouns in his mind now, but he didnt know which one was the key to solving the problem In fact, he was faced with the dilemma of being unable to extract valuable information from a large amount of complicated information. "information" ?Chang Haonan pulled a piece of paper from the side and wrote two words in the middle of the paper. In an idealized model, it is best if one piece of data can accurately and uniquely describe a meaning. That is, one-dimensional data. The word problems done in elementary school and middle school are generally like this. In fact, most of the problems faced in real life are also this kind of problem. For more complex situations, to fully describe a meaning, a set of data is often required. But at the same time, this set of data often cannot only describe this one meaning. ? To mathematically describe this phenomenon of a set of (multiple) data corresponding to multiple meanings, it is necessary to expand a set of data in different dimensions. This is a situation pushed into reality by mathematical theory. Conversely, in most cases, the information collected in reality is itself high-dimensional data that has been expanded. ??And if you want to let computers process these high-dimensional data... Chang Haonan thought for a long time and wrote down three basic conditions on the paper: 1. Compress the original high-dimensional data to reduce the dimension of the original high-dimensional data, thereby saving storage space and reducing the computational complexity of the high-dimensional data. 2. Eliminate, or at least reduce, the noise hidden in the original high-dimensional data. 3. Extract high-quality data features to improve the effect of subsequent data representation and classification tasks. He went through these three items in his mind, and then tried to get the system to give a result. No response. Obviously, this cannot be regarded as a "complete and feasible" idea. ?Unconsciously, Chang Haonan was sitting at his desk until it was almost time for lunch. ?Still not able to come up with a good idea. Until a cry from the abdomen woke it up from deep thought. I am indeed a little hungry. Yao Mengna looked at a noun and three sentences on the paper, and knew that Chang Haonan probably had no idea, so she simply stood up and said: Would you like to have a meal first? Also good. ?Chang Haonan is not the kind of person who is obsessed with things. What''s more, with regard to things like mathematics, I can''t figure out anything by just thinking about it. Without inspiration, nothing you say is of any use. Its better to relax first and change your mind. Fifteen minutes later, the three of them (along with Zhu Yadan) were sitting around a round table on the second floor of the cafeteria. ?This is a small restaurant with an a la carte menu. The price is a bit more expensive than the large canteen below. Plus, it has an extra floor, so there are not many people eating here. On the contrary, the small supermarket next to it has a lot of people coming and going. Chang Haonan had a steaming plate of mutton soup noodles in front of him, but he was not in a hurry to move his chopsticks. Instead, he was looking at the people going up and down the stairs not far away. In the 1990s, instant noodles were still a very popular ready-to-eat food. When Chang Haonan was studying for his undergraduate degree, everyone''s conditions were generally poor, and not many people had spare money to afford food. But by this time in 1999, it was no longer uncommon for college students to keep a few bags or even a box in their dormitories. You said Chang Haonan suddenly said: How do companies that produce instant noodles ensure that they dont miss out or overfill seasoning packets? ?Yao Mengna, who was eating with her head down, was stunned for a moment, and immediately realized that Chang Haonan was still thinking about the question she just raised. Stuffing seasoning packets into instant noodles and driving rivets into airplanes are actually similar in terms of mathematical models. Companies that produce instant noodles are obviously unlikely to have high-end equipment and technology. Probably...weigh? Yao Mengna guessed: The seasoning packet accounts for about 10% of the weight of the entire package of instant noodles. If you add less or more, it should be easy to detect. Hmm...but there is an error in the weight of the dough itself, and there are several kinds of seasoning packets. Weighing can only prove that the total amount is OK, but it cannot guarantee that it is not wrong..." ?Chang Haonan shook his head and said in denial. Zhu Yadan next to him looked at Chang Haonan on the left and Yao Mengna on the right. He really didn''t know why these two people suddenly discussed this issue. "that" ??Although she felt that it was a bit tricky in front of the two doctors, she couldn''t help it in the end: Before the packaging step, wouldnt it be enough to find someone to watch next to the assembly line? ?Yao Mengna holds her forehead with one hand: We are just thinking about how we can achieve the same effect without using this person. Is this... ?Zhu Yadan shrank his head instantly: "I just said it casually...but sometimes the role of the human brain may not be replaced..." Calmness returned to the area around the dining table, except for the occasional faint sound of chewing. But Chang Haonan still didn''t move his chopsticks. "you''re right." A few minutes later, when Zhu Yadan was almost finishing the fried noodles on the plate in front of him, Chang Haonan suddenly said: The human brain can parse high-dimensional data in a certain way to gain a perception of the external world. ?) ??Zhu Yadan raised his head with questions in his head, but looking at Chang Haonan''s thinking, he knew enough not to disturb him. In other words, external information with high dimensions must be underlying a nonlinear manifold structure in a low-dimensional space Nearly 70 years ago, American statistician Harold Hotelling proposed the principal component analysis method to reduce the dimensionality of high-dimensional data. He believed that the greater the variance, the more information was provided, and conversely, the less information was provided, so he constructed several principal components with large variance and high information content through the linear combination of the original components, and then performed matrix singular value decomposition to reduce the data dimension. . However, the principal component analysis method is only equivalent to finding the optimal linear mapping in the sense of minimizing the projection distance, but in reality there are not so many simple linear problems. However, this idea can be used for reference. ?Chang Haonan put down the mutton soup noodles that he had only eaten one bite, stood up and quickly left the canteen. ?Zhu Yadan, who was responsible for security, quickly followed. Yao Mengna''s reaction was a little slow. Just as she was about to get up, she realized that she hadn''t paid yet, so she had to take out her wallet and walked to the cashier helplessly. ?Chang Haonan, who returned to the office, found the piece of paper again. Write a few more lines below the three basic conditions. Given a set of high-dimensional data X={x1, x2,...,xn}RD, n is the number of data samples, and D is the dimension of the high-dimensional data. Assume that the data samples in Find a mapping relationship from high-dimensional observation space to low-dimensional embedding space such that yi=(xi), and a one-to-one reconstruction mapping relationship ^-1 such that xi=^-1(yi). Writing this, Chang Haonan showed a satisfied smile on his face. Although he still has not given a complete idea, he has at least analyzed the three abstract basic conditions into a concrete mathematical problem. For theoretical research, clearly raising questions is almost half of the way to success. ?Thinking of this, he returned to the top of the paper and wrote six words again. Manifold learning method. (End of this chapter) Chapter 759 Entering the world of theoretical mathematics? Chapter 759 Entering the world of theoretical mathematics? ? ? Next, for almost half of September, apart from responding to some necessary documents and phone calls every day, Chang Haonan locked himself in the office and solved the mathematical problem he had summarized. It should be said that with the help of the system, this matter went very smoothly. But the direction of success was somewhat different from what he expected. Because after spending a few days to come up with a complete problem-solving idea, the project directly given by the system turned out to be a proof question. Simply put, For any set of high-dimensional data X, there must be a mapping relationship that maps X to a set of data Y in a locally simple Euclidean space. ?Of course, the actual content is more complicated. Since it also involves the definition of differential topological geometry of manifolds, a series of basic conceptual issues need to be solved first before we can really start to get to the point. This is one of the reasons why theoretical mathematics papers are generally extremely long and difficult to understand. In short, it took Chang Haonan about three weeks to completely organize the entire proof process on paper. After the system level is upgraded to LV3, the ability is indeed a level stronger than before - ?When giving the "problem-solving steps", it will also strengthen Chang Haonan''s own understanding in related fields. So much so that after he first wrote down the extremely jumping analysis process on paper according to the logical order given by the system, he had no doubt that no other person could understand the content above. Most of the time afterwards, Chang Haonan was trying to solve this problem as much as possible. Its a bit like a university-graduated teacher who needs to adjust his way of thinking to roughly the same level as the latter before teaching elementary school students to solve problems. The difficulty of this matter is often no less than solving the problem itself. After all, the system is in charge of killing and not burying... You can only rely on yourself. In a blink of an eye, its the end of September. ??When Chang Haonan handed Yao Mengna a pile of proof procedures that had been compiled into photocopies for her to look at, the latter''s expression was probably one of surprise and surprise, mixed with a little bit of dissatisfaction. Have you solved the problem? So fast? But what if we agreed to participate together? It is directly a fatal three-part company. Thats not true. ?Chang Haonan quickly waved his hand: There is still a long way to go before we can solve practical problems. I have only achieved some preliminary results. Phase results ?Yao Mengna lowered her head suspiciously. ?According to her experience, the staged results mentioned by Chang Haonan are often not staged. ?For example, when working on the turbojet 14 before, Chang Haonan also said that he only conducted preliminary research on the principle of the compressor. But in fact, it has directly raised the original turbojet 14 with serious patchwork traces to the performance level of a quasi-third-generation mid-range model, and some indicators are even close to those of the F404. ?However, as she watched, her expression gradually solidified. Seems...a bit difficult to understand. From the content point of view, this seems to be a purely mathematical process. Fortunately, apart from some novel definitions, Chang Haonan did not use any particularly out-of-the-ordinary theory. The part about topology does use some relatively cutting-edge results, but the overall framework still does not deviate from the tradition, and only has some limited expansions based on the predecessors. This is very important. ?Yao Mengna does not specialize in mathematics and has basically no ability to judge the rationality of new mathematical theories, but her mathematics scores and application level are both good. This means that although she will face some obstacles, she will eventually be able to understand what Chang Haonan wrote on the paper. Its not exactly reading the heavenly book. ?Just when Chang Haonan was about to ask Yao Mengna to go back and take a look, the latter suddenly raised her head: Can you give me some pieces of paper? Obviously, she is making progress. ?Chang Haonan quickly pulled out some sheets of printing paper and a ballpoint pen and handed them over. Yao Mengna immediately lowered her head and began to write and draw on it. In the end, Yao Mengna took the things back. What Chang Haonan spent three weeks sorting out, even if it was the answer, was not something she could fully understand in a few hours. ?However, just a few days later, Yao Mengna found Chang Haonan again. "I understand." These four short words instantly brought joy to the latter''s expression. "Very good!" Chang Haonan clapped his hands: In this way, we can continue to study specific manifold learning algorithms! Uh...Professor Chang. Yao Mengna frowned, showing some confusion: If I understand correctly, this should be a proof of a conjecture that has been put into application. It seems...not directly related to the specific manifold learning algorithm? Indeed not. Chang Haonan nodded: But since even you can understand my proof process, it means that the topology knowledge applied in the entire theory has not been out of date, and the new algorithms developed next should be understandable and applicable by most people. " ?) Yao Mengna felt that this sentence didn''t sound right, but she couldn''t find any angle to refute it, so she opened her mouth several times in a row and suppressed her blush. Finally I had to change the topic: How about... lets talk about manifold learning algorithms? ?Chang Haonan is still in excitement at this time: "As for the specific algorithm, I currently have two ideas. One is to replace the geodesic distance between the sample point xi and its neighborhood points with the Euclidean distance between them; and use the flow with points outside its neighborhood The shortest path between them is replaced by the shortest path between them, so that if the low-dimensional manifold where the high-dimensional data is located is overall equidistant from a subset of the Euclidean space, then an ideal embedding result can be obtained. "The second is to construct a reconstructed weight vector between the sample point and its neighborhood points and keep the weight in each neighborhood unchanged in the low-dimensional space. For each sample point and its neighborhood set, respectively Calculate the reconstruction weight, so that only the computational complexity of O((m+k)k^2*N) is needed to complete the embedding process..." We are each responsible for one of these two ideas, so even if one of them fails, there is still a second way that you can choose first. ?The reason why Chang Haonan made such an arrangement was not entirely for military training. But as Chen Shengshen said Really good work, first-class work, is done by one person. This sentence is still very prestigious in mathematics, including applied mathematics. Two people working together may produce an effect of 1+1 less than 1. I choose the first one. ?Yao Mengna made her choice almost without any hesitation. Because when Chang Haonan talked about the second one, she was already a little dizzy, so she didn''t understand much. Thats good. Chang Haonan nodded: Thats settled for now. After sending Yao Mengna away, he did not immediately invest in researching the second idea. On the one hand, the National Day is coming soon. During this period, he will definitely not be able to devote himself to it as before. It is better to wait until he is finished. On the other hand, the certification project that was previously hung on the system was not judged as completed. Although the level 3 system can carry out 3 projects at the same time, it means that he still has an vacancy at this time. But for a person with obsessive-compulsive disorder, this is like having unclear question marks when playing a game, which is simply unbearable. Hence, Chang Haonan turned his attention to the computer screen again and sorted out the proof process himself. In fact, manifold learning was not a new term even in 1999. As early as a few years ago, in the fields of image recognition and speech recognition, someone had already proposed this concept and put forward a hypothesis that "high-dimensional data can be processed through its inherent low-dimensional manifold structure." ?Although this hypothesis has never been proven, it does not affect researchers from assuming that it is true and then starting to apply it. Its just that the performance of computers these days is really poor, so until now, there is no application for 1, 2 or 3. Chang Haonans proof itself can only have a stabilizing effect on the engineering community. The mentality is probably equivalent to the empirical formula that has been used for so many years, and it is indeed right in the end. It may not even be a surprise. But it should still be of some value to the theoretical mathematics community. Although he did not directly prove the above hypothesis, he at least proved the universal existence of low-dimensional manifold structures. It is equivalent to taking a big step in this direction. In addition, this proof may also provide some inspiration for human research on multi-dimensional space, such as Poincar conjecture and other topics. However, the standard for the system to judge the completion of a project is the impact the project has on the real world. How can a purely theoretical proof process be influential? It seems the best thing to do is to publish it And find a theoretical mathematics journal to publish it. (End of this chapter) Chapter 760 Changs Lemma Chapter 760 Changs Lemma After the content has been sorted out, it actually does not take too long to write the entire proof process into a paper with a decent format. Everything fell into place. By the next night, Chang Haonan had completed the work. ?His biggest shortcoming was originally his English proficiency, but the mathematics paper actually did not rely heavily on this. Since even Yao Mengna can understand it, even if he writes it in Chinese, the top mathematicians responsible for reviewing the manuscript will probably not have any difficulty in understanding it. Of course, thats just what Im saying. After all, just because the reviewer can understand it doesnt mean that the editor can also understand it. ??I really received a submission full of incomprehensible characters, and the submitter was an unfamiliar name with no achievements in the world of theoretical mathematics. There is a high probability that it will be thrown directly into the trash can. ??This kind of thing is also part of academic hegemony if we talk about it above and below the line. But we can only wait until later to solve it slowly ??If a top journal could be published by Huaxia, the manuscripts would naturally be in Chinese. Some Swedish journals, such as ActaMathematica, accept submissions in Swedish. In fact, this is what Chang Haonan has been planning since he was reborn. ?But I never found the opportunity. After all, running an academic journal, especially a top journal, is not just about registering a publication. You must have top scholars willing to submit manuscripts to you. This generally depends on the research institution or the editor-in-chiefs own reputation in the academic world. It is also what Chang Haonan, including all Chinese research institutions, lacks most today. Of course, these are all things for later. What is before Chang Haonan is to consider where to submit this article. ?Although this proof has no direct "use" to the material world. But theoretical mathematics doesnt care much about this. ??If you are too utilitarian, those people who do pure mathematics may even look down upon you. In general, his article contains two parts. In addition to the main conclusion that "for any set of high-dimensional data Stretch and expand. ?This theory believes that if a metric is given on the manifold and then improved by the Ricci flow development equation, the curvature of the manifold will also stretch accordingly. In the process of proving his main conjecture, Chang Haonan also proved that Ricci flow can be used to complete a series of topological operations to construct geometric structures and transform irregular manifolds into regular manifolds. Prior to this, Qiu Chengtong, Li Weiguang and Richard Hamilton have conducted research in this direction for more than ten years. In fact, Chang Haonan also made reference to the papers of these three great masters during the past month''s compilation process. The conjecture about Ricci flow itself was proposed by Qiu Chengtong. ??If this were in the engineering world, assumptions like this that cannot be falsified would have been used as tools long ago. But in the world of theoretical mathematics, it is obviously not possible to play this way. Therefore, Chang Haonan''s proof is equivalent to giving scholars in the field of differential geometry two tools that they have long wanted to use, but have never been able to use. According to the conventions in mathematics, if nothing else happens, they will probably be pinched together and named "Chang''s Lemma". As for the use of Chang''s Lemma... Intuitively, it may be possible to prove the Poincar conjecture. That is, Every simply connected 3-dimensional manifold is homeomorphic to the 3-dimensional sphere. And proving the Poincar conjecture itself... ?Chang Haonan naturally tried it a few days ago. The theoretical level provided to him by the current level 3 system is obviously not enough for him to formulate a "complete and feasible" idea. Chang Haonan also wrote this at the end of the article: These two proofs have more profound significance in the field of differential geometry, but due to the length of this article, I will explain it in more detail in the future... ??If the Poincar conjecture is compared to a sealed treasure box filled with treasures, then the tools in Chang Haonan''s hands now can only pry open a gap in it. Some parts of this paper are just a few treasures spilling out of the cracks. Such a treasure, for the theoretical mathematics community, is naturally enough to directly consider the so-called "four major journals" Annals of Mathematics, New Advances in Mathematics, Journal of the American Mathematical Society, and the above-mentioned Journal of Mathematics. There is nothing worth choosing about difficulty. In 1999, among the four major journals, only the Annals of Mathematics accepted and published electronic versions of papers, and the differential geometry gurus mentioned earlier were also closely related to this journal. Hence... ??Select the file and upload it! For Chang Haonan, this can only be regarded as an episode on his scientific research journey. At least for now, he is not ready to take theoretical mathematics as his main direction of attack. Hence, after completing the submission, he shifted his energy to preparing for the National Day ceremony. After all, thats all for the past few days. Although Chang Haonan does not need to do anything, almost one-third of the aircraft participating in the ceremony are equipped with engines that he participated in or presided over the design. Zheng Liangqun has sent invitations more than once, asking him to visit Jinmen WQ District Airport. . ?? He had been immersed in academics before, but now that the research on manifold learning has come to an end, he has to go there. And it just so happens that we can go with Ding Gaoheng. ??The distance from Beijing to Tianjin is not long, but the security along the way is also quite troublesome. Two people traveling together can somewhat relieve some of the pressure on the security department. Xiao Chang, I heard from Commander Zheng that he has invited you for almost a month. In the specially modified minibus, Ding Gaoheng sat opposite Chang Haonan and said with a smile. I also received it, but I cant help it. I have been studying a new topic recently and its hard to be distracted and interrupt my thoughts, so I have put it off until now. ?Chang Haonan reached out to straighten his hair, which was slightly longer because he hadn''t cut it for more than a month, and replied. A subject that you cant get away from? Ding Gaoheng glanced at Chang Haonan''s thick black hair with complicated eyes, and raised his eyebrows slightly. In the past few years, Chang Haonan has shown a strong ability to multi-task and can even lead two unrelated projects at the same time. Therefore, Ding Gaoheng was really shocked when he said the words "not easy to distract". ?Chang Haonan also noticed the other party''s eyes. In order to prevent Ding Gaoheng from thinking that he was showing off his hair, he hesitated for a moment and then put down his hand: Well... I originally just solved a problem of information retrieval and data dimensionality reduction, but in the process I discovered some results in theoretical mathematics, so I spent some time proving it and submitted a manuscript. "oh" ?At this time, Ding Gaoheng had not yet realized the seriousness of the matter: Where to invest? Annals of Mathematics. ?Chang Haonan picked up the cup and took a sip of water. "ah?" Ding Gaohengs eyes widened. ??Although he was born in the Soviet Union and cannot speak English very well, it does not mean that he knows nothing about things in the United States. Annals of Mathematicsthe one from Princeton University? Yes, a conjecture in the field of differential geometry proves that they are more professional there. ?Chang Haonan nodded. Ding Gaoheng opened his mouth, seeming to be hesitating. But finally asked: Then... do you think the probability of winning the manuscript is... high? Its not that he doesnt trust Chang Haonans abilities. Mainly, he has seen many science scholars switch majors to the engineering field, but it is indeed unusual for them to switch from engineering to science, especially to theoretical mathematics. ?Although Chang Haonan has made considerable achievements in control theory before and published an influential article, it is still regarded as the highest achievement in Chinese control theory. But although control theory also contains the word theory, it is generally regarded as an engineering subject. ??Now go directly to challenge the top boss like Mathematics Annual, and everyone has to weigh the success rate in their hearts. ?Compared with this behavior, Ding Gaoheng could only think of Qian Weichang who gave up history and switched to theoretical physics. When the latter was 18 years old, he was admitted to Qinghua University with a score of 100 in Literature and History, 5 points in Physics, and a total of 20 points in Mathematics and Chemistry. However, he caught up with the September 18th Incident the following year and decided to abandon literature and pursue science, and learned to build airplanes and cannons. . Then I got the highest score in my major when I graduated. Later he also became a leading figure in the fields of mechanics and applied mathematics. ?Although Ding Gaoheng has heard this story many times, when another similar person appears, he still feels... A bit outrageous. (End of this chapter) Chapter 761 eve of military parade Chapter 761 The Eve of the Military Parade I personally think...it shouldnt be a big problem. Facing Ding Gaohengs question, Chang Haonan touched his chin and thought for a moment: Unless their editor was drunk and didnt send my article to the experts in differential geometry. In fact, in the 1990s, when his article was submitted, no matter who it was submitted to, in the end it would most likely be handed over to a few people for review. Its nothing more than a difference in efficiency. Ding Gaoheng nodded. ??If someone else expresses his position in this way, he may have some concerns. However, Chang Haonan has always left room for speech and has never lied. Since he can make such a statement, he is obviously quite confident. When will it be published? Ding Gaoheng asked with concern. Its hard to say Chang Haonan shook his head: "Theoretically speaking, my proof process is only an extension of the Ricci flow, and it has not reached the level of establishing a new theoretical framework. Even... uh... in short, for mathematicians who study differential geometry, especially the Poincar conjecture. , there should be no obstacles to understanding. "But I heard that those big guys who are engaged in theoretical mathematics have weird tempers. There is no guarantee that they can''t find someone or they have something to do. I can only say that if everything goes well, considering that the annual journal of mathematics is published bimonthly, then it will be best to It should be published in the sixth issue of this year at the end of November soon. Ding Gaoheng was visibly relieved when he heard that the publication time was calculated in months instead of years. Chang Haonan also paused for a moment before continuing: "I''m not in a hurry about this. It''s originally a by-product of studying manifold learning. After the National Day, my focus should be on finishing the Turbofan 10 project, as well as the data mining algorithm just mentioned. This is the application Projects with relatively strong scale are more valuable at this stage. ?Let alone two lemmas, even if the Poincar conjecture is really proved, it is not a particularly urgent matter for China today. ??Of course this does not mean that the Poincar conjecture has no practical significance. On the contrary, Poincar''s conjecture is widely used in fields such as computers, engineering design, and biology. Otherwise, it would not have been included in one of the seven Millennium Problems seven months later. But similar to the N-S equation, which is also a millennium problem, even if a rigorous explanation from a mathematical perspective is not found, the engineering community can still use it first. Furthermore, considering that the Poincar conjecture requires a "proof" rather than a "solution", its engineering application is simpler than the N-S equation. Let me first assume that it is true. ?In case you find that it doesnt hold true later, just find a way to make corrections. Furthermore, as a reborn person, Chang Haonan clearly knows that the Poincar conjecture is true. In a previous life, it was proved by Russian mathematician Grigory Perelman in 2003. ?? Did not submit to any mathematics journal, but published 3 consecutive papers directly on the Internet. Since he almost proposed a whole new theory during the proof process, it took other mathematicians nearly three years to finally confirm that his proof process was correct. ? Its just that before that, in 2005, Perelman had entered seclusion, and no one knew his whereabouts. Neither the $1 million prize, the title of academician of the Russian Academy of Sciences, nor the Fields Medal could make him reappear. In fact, the greater value of Poincar''s conjecture lies in physics, such as providing a mathematical foundation for string theory and quantum gravity theory. And that will happen much later. It is not too late to consider it after China''s comprehensive national strength has been improved. Data miningsounds like a database-related technology? ?At Ding Gaoheng''s age, it is somewhat difficult for him to do research, but it is not a problem to follow some cutting-edge topics. He even has some idea of ??the new terms in Chang Haonan''s mouth. So be it. Chang Haonan nodded: In laymans terms, it is to filter out useful parts from massive amounts of complex information. The more useful ones at present may be...production line management and...search engines." Of course there are deeper applications. ??For example, image recognition, machine learning and even artificial intelligence. But these will be true paintings in the millennium. It is equivalent to wheat planting not yet started. So Chang Haonan simply didnt mention it. Lets talk about it in the future when there is real hope of realizing it. ?However, Ding Gaohengs focus is not on assembly line management: A search engine...like Google? Yes, but this can only be regarded as one of the search engine technologies. Chang Haonan replied. It was also at this time that he suddenly realized something - In 1999, China did not actually have its own search engine. Some degree was only established in January 2000. Although search engines may seem inconspicuous, even until more than 20 years later, only China, the United States, South Korea and Russia in the world have their own independent technology search engine cores. ?Of course, both Dou and Google gradually used their respective market monopolies to become advertising trolls. This is a story for another day. But search engine technology itself is definitely positive. Especially in the early days of the expansion of the Internet, it greatly reduced the difficulty for beginners to get started. After all, there is still a bit of a barrier to enter the URL directly into the address bar. And if we can exert some influence on a certain degree during this critical period... Not only can Torch Group make more money. It also seems to help regulate the other party''s future development. Win-win. Its just that time is already a bit tight. ? ?If a degrees core technology patent "Super File Retrieval System and Method" has been registered, it actually already has the most basic conditions for establishment. Chang Haonan can only start from improving performance. In any case, he had already kept this in mind. ?Chatting all the way, the convoy finally arrived at Wuqing Airport. This is one of the seven military parade support airports in North China. ? is also the largest of them all. Most fixed-wing aircraft, including the Bayi Aerobatic Team, will take off from here. Including several third-generation aircraft, they were also moved here from the originally planned Yangcun. Director Ding, Mr. Chang. After the two got off the bus, Zheng Liangqun, wearing a pilot uniform, was already waiting nearby and saluted immediately when he saw the two. Of course, it is mainly for Ding Gaohengjing. Chang Haonan was not a soldier, so he couldn''t return the courtesy. He just shook hands with Zheng Liangqun: Commander Zheng, are you... going to fight in person? "nature." ?Zheng Liangqun nodded: I am the pilot of the interceptor echelon, and I have just returned home not long ago. Theoretically, all military officers (excluding political commissars), including the Air Force Commander, have the ability to take off and fly. But generally speaking, due to the existence of the 45-year-old grounding line, the highest military rank for a fighter pilot who can really take to the sky is senior colonel. After all, in peacetime, if an officer is promoted to major general step by step, he will be overage anyway. ?However, as one of the only two pilots in the army who has participated in combat operations and quasi-combat operations, Zheng Liangqun happened to be promoted to major general under the age of 45. Thus, we got this once-in-a-lifetime opportunity. You have to personally participate in the training, and you have to be responsible for management... You have worked hard too. ??Although Ding Gaoheng is not Zheng Liangqun''s direct leader, he is still a superior after all, so there is no problem in saying this. How can it be considered hard work... Others want this opportunity, but they still cant get it..." Zheng Liangqun straightened his back and said with a smile on his face: Besides, Commander-in-Chief Li specially assigned three deputies to me, which is enough to ensure that we can pass over Tiananmen Square within seconds on October 1st! While the few people were talking, the roar of an engine came from the horizon not far away. ?Chang Haonan and Ding Gaoheng turned their heads at the same time. It is 4 fighter-bombers preparing to land. ?Although it was difficult to see clearly from a distance, Chang Haonan still remembered that Zheng Liangqun had said before that if it was a 4-machine rocket team, it would be the JH-7A that had just been trial-installed and entered service. Lets go, other formations are also returning one after another, just go and have a look. Zheng Liangquns face showed a look of satisfaction: I have been a pilot for twenty years, and I have rarely seen such a spectacular scene! (End of this chapter) Chapter 762 elephant walk Chapter 762 The Elephant Walks Inside the airport, minibuses are a bit inconvenient to use. ?Especially when you have to go to the apron or even the taxiway later, the bigger the car, the greater the impact on airport dispatch. Therefore, everyone got into several soft-top Cheetah off-road vehicles and headed towards the tarmac. At this time, the four JH-7As that were descending just now also landed on the runway in groups of two. This should be the fourth in the air formation. ?Of course, the usual training processes of each formation are separate, and they are not necessarily organized in the order of being reviewed. Otherwise, Zheng Liangqun''s interceptor wedge team would still be in the sky. "After entering into small batch trial production last year, the production speed of the JH-7A has increased significantly this year. The 15th Regiment of the 5th Air Force Division and the 18th Regiment of the 6th HNA Division have begun to refit at the same time. In particular, the 18th Regiment has formed its first The complete J-7A brigade. Zheng Liangqun looked almost intently at the four aircraft not far away that had thrown away their drag chute and entered the taxiway, and said to Chang Haonan. The 18th Regiment of the 6th Haihang Division belongs to the East China Sea Fleet. This division also previously had a 16th Regiment equipped with the old JH-7 and a 17th Regiment equipped with the H-6D. They were obviously built as a fist force for sea strikes. Even though the JH-7A model has become something that no one pays much attention to after more than 20 years, at this time, it is definitely the little sweet that all units are rushing to want. Chang Haonan even heard that some fighter units said that since they are called fighter-bombers, it would be okay for us to take a small loss and replace ourselves with some... ?Of course, the focus of fighter-bombers is bombing, and their beyond-visual-range and maneuverability are not the same as multi-role fighters. So they said that. ?But it is enough to prove the popularity of this model. ?When the distance got slightly closer, Chang Haonan suddenly discovered that these four planes were not HNA''s numbers starting with 8. So these four are aircraft of the 5th Air Force Division? Ding Gaoheng, who was sitting in the passenger seat, turned around and asked. He is not a member of the parade command organization, so it is naturally impossible for him to know the formation situation well in advance. "right." ?Zheng Liangqun nodded: Initially, this formation plan was called a naval aviation formation, consisting of four Hainan Airlines JH-7A aircraft. However, by the time the official decision was made in the second half of last year, the equipment capacity of the JH-7A aircraft had already increased. "So after discussing with Commander-in-Chief Li, I decided to rename this formation the fighter-bomber formation, and then reduce the number of J-7Es in the next formation. Anyway, the J-7s... are not interesting, and then add a naval aviation wedge team. , 5 old model JH-7s. After all, the deployment of troops for military parade cannot affect the combat effectiveness of front-line units too much. It is impossible to remove all the cutting-edge models. As if to provide an explanation for Zheng Liangquns words, just as several cars parked on the tarmac, the outlines of five aircraft appeared vaguely in the distance again. Director Ding, Mr. Chang, telescope. After a few people got out of the car, Zheng Liangqun brought two telescopes from the makeshift command room nearby and handed them to them respectively. Ding Gaoheng immediately found a slightly shady position, raised his telescope and looked at the horizon. ?Chang Haonan was not in a hurry. ?After all, when he modified the JH-7 two years ago, he had already taken apart the model inside and out. Is the formation training going well during this period? Chang Haonan vaguely remembered that during the military parade training in his previous life, a JH-7 was damaged due to operational errors. Smoothly, quite smoothly. Zheng Liangqun was about to raise his telescope, but he put it down after hearing Chang Haonans question: "The Guihang Group developed a simple version for us based on the formation flight rangefinder in the nose of the J-9 aircraft that can be attached to the wing pylon of the front aircraft. Although the effect is not as good as the one used by the performance team, But its better than nothing. As he spoke, he pointed at the four JH-7A aircraft that were already on the taxiway. Chang Haonan raised the telescope, and sure enough he saw a small, inconspicuous device hanging on the wingtips of each aircraft. It should be the one Zheng Liangqun was talking about. ?In 1999 of the last century, the underwings of the aircraft being reviewed were relatively clean, and they were not allowed to hang bombs on the fighter planes for review like later (and of course the founding ceremony). Mainly, airborne ammunition also has a lifespan. At present, the Air Force is still relatively poor and cannot afford to fly hundreds of aircraft with live ammunition at once. But now, these aircraft have auxiliary fuel tanks and ammunition hung under their wings. Although judging from the color scheme, it should be a training bomb, it also adds a lot of momentum to the fleet. What about the mechanical condition of the aircraft? Especially the JH-7A with a new engine? In non-war years, military parades are basically high-intensity actions, and the relevant data are still very valuable. Compared with the few turbofan 10s specially sent by the turbofan 10 project team to support them, which flew directly from the combat troops, the JH-7A, which is uniformly supported by the air force ground support units, is obviously more representative. "very good." After Zheng Liangqun finished speaking, he turned around and shouted into the distance: Team Leader Chen! After a while, an officer with the rank of colonel and wearing an air force camouflage uniform ran over from the side, stood at attention, and saluted the three of them. For a colonel, he looked very young and seemed to be in his early thirties. Chen Qin, leader of the 9910 project air formation service support team, please give instructions! This is Comrade Chang Haonan, who is responsible for the overall design and production optimization of the turbofan 9A. Please report on the guarantee status of this model. Zheng Liangqun ordered. "yes!" ?? Chen Qin took off the thread gloves on his hands, and then took out a tattered notebook from his coat pocket: "The fourth formation''s four JH-7A aircraft have flown a total of 85 hours since the centralized training, without any flight accidents. According to the support manual and daily post-flight inspections, a total of 107 parts involving the turbofan 9A engine were replaced normally. , on average, each flight hour corresponds to 34 maintenance hours, of which 11.5 maintenance hours are related to the engine... If the commander needs it, I still have all the maintenance and repair logs from the centralized training to the present!" "Compared with the J-H-7 of the fifth formation, the average number of parts replaced by each engine of the Turbofan 9A is only 45% of that of the SPEI MK202, and the maintenance man-hours corresponding to each flight hour is 55% of that of the SPEI, and it is not in the maintenance process. A fault was discovered that required complete disassembly of the engine..." As the leader of the service support team, Chen Qin is in charge of all aircraft support work at WQ District Airport, so these data will naturally be concentrated in his hands. But its one thing to get the data, its another thing to compile it and carry it with you. Its no wonder that he can become a colonel at such a young age. Being specially selected to provide military parade support definitely reflects the trust of superiors. In short, to sum up, the Turbofan 9A has completely surpassed the SPEI MK202. Recognizing this is not very important to Chang Haonan. After all, there is a gap of nearly 30 years between the engine of the late 1990s and the engine of the 1970s. But it is important for comrades in the Air Force. After replacing new equipment, especially new domestic equipment, pilots will be a little worried. At this time, even if the technicians say 11,000 words, they cant compare to the opportunity to put the old and new models together for comparison. ?The difference is immediately apparent. When new troops change their uniforms, it will be easier to accept psychologically. Director Ding, Mr. Chang. ?After Chen Qin finished his report, Zheng Liangqun nodded, indicating that the other party could go back to work first, then turned around and looked at the two of them: I have prepared a surprise for you two today. ??As he said that, he stretched out his hand and gestured to the taxiway not far away. ?Chang Haonan turned around following the other party''s direction. ?Then his expression suddenly brightened. While listening to Chen Qin''s report, the 9 aircraft that had just landed, as well as the other 3 J-H-7 and J-H-7A aircraft as backup aircraft, a total of 12 aircraft, were already forming a long queue over there, heading towards the shutdown together. Coming from Ping. 12 aircraft, not a particularly large number. But the location where Chang Haonan and others are located is not an absolutely high place. So from their perspective, it really feels like an "elephant walking"... (End of this chapter) Chapter 763 Good machine with good ammunition Chapter 763 Good machine and good ammunition Chang Haonan, as someone who has seen J-15, J-16 and even J-20 in this formation, is relatively resistant to the elephant walk of JH-7. The main thing that impressed him was that he had the opportunity to participate in the modernization process of the Air Force and even the entire country. So, when he put down the telescope, Zheng Liangqun and Ding Gaoheng still hadn''t seen enough. What a pity, this is only half a regiment, and it cannot be considered a third-generation aircraft. ?Chang Haonan smacked his lips after speaking, picked up a bottle of water from the side, unscrewed it and took a sip. Due to the different combat missions they undertake, the generation of fighter-bombers generally cannot be copied from the fighter planes. However, this is not a serious occasion, and it is enough to understand the meaning. Zheng Liangqun took the telescope away from his eyes slightly, looked at Chang Haonan sideways, and replied quietly: 12 aircraft, quite serious... If this had been the case in the early 1990s, one of our regiments would not have been able to muster 12 aircraft that could move at any time The normal establishment of a fighter regiment is 24 aircraft, and the on-flight rate of 50% does not seem high. However, for the Chinese Air Force in the early years, unless it was specifically grounded for a period of time to engage in a service support battle, half of the aircraft could be in flight. , they all belong to the elite among the elite. ??And the aircraft model must match ? New aircraft are unstable and have a high failure rate. Old aircraft have been flown too much and have a high failure rate... By this time, the 12 planes had left the taxiway and returned to the apron. Ding Gaoheng also put down his telescope: "I don''t know much about the further details, but in 1984, the service support of reference aircraft was completed by a group of technical personnel from various manufacturing plants in the aviation industry system. Unlike now, the service support of reference aircraft is completed directly from the reference aircraft. The task can be accomplished by deploying troops. Speaking of the 1984 military parade Zheng Liangqun also chimed in: "We kicked the Qiang 5 out of this military parade before because we found that the fuel level in this model was too low last time. After completing the entire parade mission, the remaining fuel was very tight. In case of special circumstances, it would need to circle twice. , the oil level has reached the lower alarm limit..." When the two of them talked about fifteen years ago, their tone was very relaxed, they were talking and laughing. After all, these are memories of bitterness and sweetness. ?But looking back now, the situation back then was definitely severe. In the mid-1980s, Chinas main force was the J-6, which was imitated from the MiG-19. The output of the J-7I was very small. Until the J-7II was discontinued in 1986, there were still many technical defects that could not be solved. In particular, the turbojet 7B had an ablation of the fuselage in the early stages of installation due to the increased combustion chamber temperature. problem. However, early typical third-generation fighter jets such as the F15, Su-27, and Mirage 2000 have gradually entered the air force of major countries. Even the Air Self-Defense Force next door has been equipped with F15J since 1981. For many troops, the situation they face is that they have to use first-generation aircraft to fight third-generation aircraft. Although Chang Haonan has not experienced that era, he can be sure that at that time, Zheng Liangqun, who had just graduated from the aviation school and joined the front line of combat preparations, and Ding Gaoheng, who had just taken over the work of the Science and Technology Commission, definitely had different responsibilities than they show now. Just like the clouds and the wind. Its no wonder that the scene of 12 JH-7s opening up the formation was already satisfying for the two of them. Let me see, its pretty good to have these aircraft now. If there is anything that feels a bit worse, its these airborne weapons. Zheng Liangqun said to Chang Haonan as he looked at the planes that parked at corresponding positions on the tarmac in front of him. The JH-7A was equipped with two PL-5Es, two PL-11s, two YJ-81s and two wingtip rangefinders during the military parade. ?The JH-7 prototype replaced two PL-11s with two auxiliary fuel tanks. is of course empty. Some JH-7s that have undergone mid-term overhaul have added the function of launching semi-active bombs, but the performance of the 232H radar is really poor in terms of air search. If the radar is replaced, both the cost and the construction period will be out of control. Therefore, the Thunderbolt 11 Generally it is still not used as the main equipment of the JH-7 unit. "When we first got the Thunderbolt 11, it was still quite new to our comrades, but in the past two and a half years, the amount of active ammunition equipment, including the amount of practice during the training process, has also increased. Not to mention, there are so many equipment, such as J-8C and Basically every pilot of the third-generation aircraft unit can fire a live ammunition once, and some top troops have already begun to explore the tactical level. " "However, once you really start to study tactics, you will find that semi-active missiles, especially mid-range semi-active missiles, still have too many problems. Although they can shoot beyond visual range, the aircraft cannot make large maneuvers before the missile hits the target. , otherwise it will be unlocked. "There is also the Eagle Strike 81, which is the same. However, our troops have not used this model before. It was during the last embankment construction operation. I heard from comrades in the Naval Aviation that the 50-kilometer range of the air-launched model is a bit short. , especially against the Americans and the Maritime Self-Defense Forces Aegis system, even ultra-low-altitude penetration is a bit unsatisfactory. For Chang Haonan and Ding Gaoheng, this is very direct feedback from the front line. Luoyi 612 Institute is already working with the Pennant Design Bureau to develop the Thunderbolt 12. Normally, it is expected to be test-fired from the end of this year to the beginning of next year. ?Although Chang Haonan has now become the leader of the Aviation Power Group, thanks to his position within the Science and Industry Committee, he still has some understanding of the situation in the aviation industry next door: In addition, the Institute of Aerospace Technology is also developing an ultra-long-range air-to-air/air-to-ground multi-purpose missile, which can be used to counter radiation or deal with large targets at ultra-long distances. Ultra-long range? Zheng Liangqun just said it casually, but he didnt expect to receive feedback on the spot: How far is? For air-to-air missiles, although the range on paper is not the only important performance, being able to fire first before the enemy is definitely a huge advantage in air combat or air-ground confrontation. Even the criticized semi-active ammunition can have huge tactical value as long as the range is far enough. "Well...it is basically the Soviet R33. We have improved the new missile wings, warhead and seeker. According to the national military standard range, the air-to-air range is about 200 kilometers, and the air-to-ground range...may be a little closer. " ??This model, which is currently tentatively named Thunderbolt 13, was able to be approved because of Chang Haonan''s contribution. Not only that, he also developed the passive search algorithm of the seeker. ??And related technologies have also become the key to reversing the situation in the Balkans in the first half of the year. It can also be regarded as indirectly preserving the air-to-air missile research and development department of the Aerospace Technology Research Institute. So Chang Haonan is naturally very familiar with performance indicators. Take less? ?Zheng Liangqun almost dropped the telescope to the ground. ? He ??originally thought that it would be quite good to double the range based on the Thunderbolt 11. The result was unexpected, it was almost an order of magnitude greater. ?Although Zheng Liangqun has also heard that the AIM54 equipped by the Americans has a range of nearly 200 kilometers. But what you hear is what you hear, and it belongs to someone else. In fact, the theoretical limit range of the later models of the R33 when using the MiG-31 as the carrier aircraft can be further, but that data is too false. If it is replaced by the normal standard (10,000 meters, the carrier aircraft and target are 1.2 times or 1.4 Double the speed of sound), there will be a huge discount. After improving the elastic wing and optimizing the path algorithm, this number was stabilized at around 200 kilometers. In actual combat, considering that the target cannot fly against you all the time, the effective range should be shorter. But no matter what, for the Chinese Air Force, which has just adapted to the diplomatic combat distance of 30-40 kilometers, the difference between 200 kilometers and 300 kilometers is actually very small. Because it is a number with no concept at all. The Chinese Air Force currently does not even have any radar that can detect a target the size of a fighter jet 200 kilometers away... 200 kilometers. Chang Haonan smiled and replied: The test should not be far away, but unfortunately it is difficult to measure the maximum range effect with the existing models. Zheng Liangqun did not answer this time, but opened his mouth slightly, as if he was imagining what it would be like to have an air-to-air missile exchange between ourselves and the enemy 150 kilometers or more apart. After thinking for a long time, he felt that it was difficult for fighter jets alone to cope with such a level of air combat. Only the early warning aircraft ?Thinking of this, Zheng Liangqun glanced back and forth between Ding Gaoheng and Chang Haonan again. Obviously I want to ask. But I feel like Im a little out of touch. After all, the domestically produced fighter jets are just now on the right track, so we are beginning to consider the domestically produced early warning aircraft... In any case, he did not speak in the end. ?As a result, the atmosphere between the three of them fell into a slightly strange silence. Until the roar of engines from another group of planes broke the silence. This time, without even using a telescope, Chang Haonan could identify the six J-9s from the iconic pointed nose and double delta wings. The normal gray paint indicates that it is not an aircraft of the Bayi Aerobatic Team. ?That is the training aircraft echelon at the flight academy. ?Chang Jiayao should be on the last or penultimate plane among them. Mr. Chang. Zheng Liangqun came over and said: According to our training schedule, the morning is flight training, and the afternoon is commentary and training review. In addition to lunch, there will be about two hours of free time. Of course, you cannot leave the camp. You see..." The meaning of this statement is very clear Chang Jiayao''s flight training is over, and Chang Haonan will definitely not be able to go directly to the tarmac to find her. The impact is not good. ??It will also bring a lot of unnecessary pressure to Chang Jiayao. So you should go to the living area and wait for the rabbit. Commander Zheng, how about you take us two to the living area? Ding Gaoheng next to him also created opportunities for Chang Haonan: Ive heard that the standard of the air crew that you are responsible for during the military parade is even higher than the standard of the usual air crew. We just happen to catch up today, so how about we both lend a hand? (End of this chapter) Chapter 764 Go to the capital and watch the military parade! Chapter 764: Go to the capital and watch the military parade! Over the airport. In the cockpit of No. 6 of the training aircraft echelon, Chang Jiayao was staring closely at the flight data displayed on the HUD in front of her, as well as the airport runway that was gradually sweeping backwards on the side of the cabin. According to the flight training plan, they had to make a final 180 turn before landing. Attention all aircraft, the echelon turns 180 and prepare for approach. ??The familiar voice of Zhang Jiujiang came from the radio. As a senior flight instructor, he naturally serves as the lead pilot in aircraft No. 01. At the same time, in order to ensure that the leader''s line of sight was not disturbed, Aircraft No. 01 was the only one that did not carry a student pilot in the front seat. Immediately afterwards, the entire flight formation began to turn to the left without changing the formation, preparing to align the nose of the aircraft with the runway. Units 5 and 6, pay attention to raising the altitude. When the aircraft turns at a large angle, it needs to roll and yaw at the same time. During the roll process, the aircraft in the entire echelon must be on the same plane as the aircraft wing. Therefore, the farther out and further back, the In order to ensure the consistency of the overall formation, the aircraft needs to perform a larger range of movements during the turning process. Not only do they have to turn themselves, but they also have to pivot around the formation axis, which places high demands on the pilots. Unit No. 5 (6) received! Chang Jiayaos eyes shifted to the multi-function display in front of her, and she reported several important parameters to her fellow instructors in the back seat. ?Although the back seat of the JJ-9 has been specially raised during the design, it is not like the J-7, where only the back of the head can be seen from the back seat. However, since the aircraft has a certain elevation angle during the final landing process, the field of view is definitely not as good as that of a serious third-generation fighter jet. Secondly, the person sitting in front is a student pilot after all, not a real ballast. Many pilots may not be able to catch such an opportunity to participate in a major training mission in their entire career. Now they can experience it before they graduate from aviation school, so they must take this opportunity to practice more. ?Although they definitely dont dare to let them touch the control stick directly, its okay to simulate the flight process in their mind and write a flight report when they go back. After all, they have been training intensively for several months. Soon, the entire 6-machine formation completed the turn as planned. Todays training is going very well. The formation is disbanded and ready to land in order! Zhang Jiujiang''s voice sounded again, making the pilots of several wingmen, especially the flight instructors, breathe a sigh of relief. For veteran pilots like them, it was a long time ago that they learned to fly in formation. ?However, at the beginning of this military parade training, facing the sudden increase in formation standards, the instructors still regained the feeling they had when they were students. Most of the time, we have to endure three meals a day. The accompanying student pilots also had a hard time. Mainly because its hard to hold it in Seeing the usually dignified instructor being trained like him by Zhang Jiujiang, I felt a sense of dj vu, like "the unlucky me and the unlucky instructor went to meet the awesome master, but the two of them sat in rows and were criticized together." . ?But I didnt dare to really laugh. In short, it was not until the training camp began that everyone gradually adapted to the new training requirements. But as October 1st approaches, even a person with a strong psychological quality as a pilot will feel a bit burdened every time he trains. After circling in the sky for several times, the two planes No. 5 and 6 finally touched the runway lightly. ?Two puffs of green smoke rose from the surface of the rear wheel. The speed bump and speed brake were opened at the same time, and the speed quickly dropped from 200 to close to 0. After reporting the last altitude data, Chang Jiayao lifted the goggles on her flight helmet and took out a camera from the pocket of her flight suit. Considering that the trainees in the front cabin have nothing to do most of the time during the flight, the academy simply gave each person a camera so that they could take some photos of the National Day military parade from a bird''s-eye view. Air Force promotional material. After sorting out the flight equipment and filling out the flight record sheet, the flight instructors still need to check the status of the aircraft with the ground crew, but the student pilots can already be dismissed. I took a special look when we landed just now. Our return sequence should be considered early today. Finally, we dont have to eat leftovers..." ?Li Lingchao, who was flying with No. 5, walked up to Chang Jiayao and said while rubbing his waist that was a little sore due to the vibration of low-altitude flight. ??Although daily flight training does not necessarily follow the order of the formation, as the last fixed-wing aircraft formation, their route is the farthest, and the speed of the aircraft is relatively slow, so they usually have to return last. By the time we get to the canteen, there will be nothing left. The two of them walked and chatted, and soon returned to the living area. Chang Jiayao! Just when the two of them walked to the door of the cafeteria and were about to wait for the other students to file in, a familiar voice came from next to them. Chang Jiayao turned her head subconsciously when she heard her name, and first saw a person wearing a pilot uniform. There was no military rank on the flight suit, so she subconsciously thought it was a pilot from another formation. As one of the few women in the entire camp, they usually receive a lot of attention, and their names are known to almost everyone. ?It is not uncommon for some young talents who have not yet started a family to strike up a conversation during their free time. But if you take a closer look... Looks a bit older... ?) Commander Zheng! The two of them quickly stood at attention. As the commander of the air formation and the formation leader of the interceptor echelon, Zheng Liangqun is one of the best in the camp in terms of prestige and strictness. Take a break. Zheng Liangqun waved his hand, indicating that the two of them did not need to be so nervous: Chang Jiayao, come in with me first. Chang Jiayao and Li Lingchao looked at each other, but followed Zheng Liangqun into the cafeteria, then went upstairs to an inconspicuous corner on the second floor. ?Slightly strangely, the tables around this corner were already filled with people, making the rest of the place seem a bit deserted. ??And judging from their attire, these people dont look like theyre from inside the military parade village ?While she was wondering, she saw two people, an old man and a young man, sitting face to face at a square table. She doesnt know much about the older ones. But for the young one, she is too familiar. "elder brother?" Chang Jiayao almost shouted out, but considering the negative impact in public places, she suppressed her voice in the end, which made her voice a bit strange. The two people at the table looked at her at the same time. Director Ding, this is my roommate. In the end, Ding Gaoheng called out the name directly: Chang Jiayao, right? "Um?" ?Chang Haonan was stunned for a moment. You dont think the organization doesnt even check your family background before appointing important positions, do you? Ding Gaoheng said with a smile: The seventh batch of female pilot cadets recruited by the Air Force are no less women than men. He was only wearing khaki casual clothes and looked like an ordinary little old man. Then he looked at Chang Jiayao and Zheng Liangqun: Lets all sit down. ??Although Chang Jiayao still didn''t know who this old man was, she saw that the other man was talking to Zheng Liangqun in this manner, and knew that he was probably not an ordinary person. For a moment, he was stunned and didn''t think of any action. In the end, Chang Haonan pulled him to sit next to him. ?However, her current identity is actually a family member of Chang Haonan, so it is not complicated. As long as we really talk about everyday things, that''s fine. By the way, Xiao Chang. Ding Gaoheng picked up the spoon, lowered his head and took a sip of soup: "Your parents...should be coming over for the National Day, right?" In terms of reception, do we need to make some organizational arrangements? ?Although strictly speaking, it is a private matter, but at this time, these matters are not strictly controlled. Besides, the situation during the National Day is special. Without reception, the two old people would not even be able to enter the third ring road. Yes, the flight is tomorrow. Chang Haonan nodded: In terms of reception, I have already contacted the comrades of the National Day ceremony preparation team. In addition, I have no work arrangements in the past few days before the National Day. ?At the same time, Liucheng. County Public Security Bureau. ?Chang Yuanchao knocked on the door and walked into Director Lu Yuan''s office. Lao Chang? The director raised his head and saw Chang Yuanchao standing at the door: Come in and sit down! Hand said, he motioned to the chair opposite the desk. Chang Yuanchao was originally a senior investigator and was responsible for the daily work of the criminal police brigade. It was only when he got older that he took a back seat. Even before, he still had some prestige in the county bureau. Whats more, theres something like Chang Haonan Although no outsiders knew what kind of work Chang Haonan was doing due to the tight-lipped nature of the old couple, considering that the superiors requested special attention to the work and life of Comrade Chang Yuanchao, it was obviously not a trivial matter. Just sit down, Im here to ask for leave. ?Chang Yuanchao put the things in his hands on the desk. It is an application form and a beautiful envelope made of red cardboard. I have to go out on November 1, so I want to ask for leave two days in advance. I want to go... ?Before he finished speaking, he was interrupted by Lu Yuan opposite: Hey... you have two days of personal leave, just say hello to me, why do you want to make it so formal..." As he said that, he was about to push back the vacation application form. If you take additional leave through formal procedures, your salary will be affected. Although Lao Chang may not care about this now, this is an attitude. ?However, at this moment, he noticed the gilded writing on the red cardboard envelope. Office of the Leading Group for the 50th Anniversary of the National Day Celebrations. Lu Yuan''s hand shook slightly. ?Then, he looked at the reason item on the vacation application form October 1, went to Beijing to participate in the 50th anniversary celebrations of the National Day. Old Changthis Lu Yuan touched his chin and thought for a while: This is an invitation from a superior unit, so how can it be considered a holiday... It should be a business trip... "ah?" Chang Yuanchao himself never thought that such a statement could be made: Its not necessary if Im on a business trip. Theres someone in the capital to pick me up According to our regulations, invitations to participate in ceremonies, ceremonies, and learning activities held by superior units are inherently part of the travel arrangements. ?? Lu Yuan said and took out a business trip application form from the drawer: Furthermore, you are not just an ordinary superior unit, you have also gone up to the sky! Its an honor for our entire bureau that you can attend the National Day ceremony on site. If you go on personal leave, then you dont want to let the bureau take advantage of this? Having said this, Chang Yuanchao naturally had no choice but to refuse: Thenthank you, Director! ?Lu Yuan didnt even ask Chang Yuanchao to do anything. He helped him fill out the application form and then signed it: "Thank you, thank you. Let me tell you, when the time comes, you can take two photos at the scene and hang them in our honor room. Write below, ''Comrade Chang Yuan Korea of ??our bureau was invited to participate in the 50th anniversary celebration of the National Day.''" Its me, the director, who should thank you. After finishing speaking, he returned the invitation and application form to Chang Yuanchao. After thinking about it, he left the application form with himself: Ill go find the political commissar to sign. You should go back early today to prepare! (End of this chapter) Chapter 765 October 1st, sunny Chapter 765 October 1st, sunny ?Chang Yuanchao and Zhou Li flew to the capital on the evening of September 30th. Its just that the plane landed at the Capital International Airport this time. ?This place is much bigger than Nanyuan, and it took the old couple a long time to find it. Chang Haonan and Zhu Yadan were still waiting outside, Originally, the former should try to avoid appearing in crowded places like large airports. At least you should wait in the car. ?However, because the National Day ceremony was the next day, the entire capital went into strict security mode. ? Even at the Capital Airport, there were not many people at all, which was completely different from the crowds in the past. ??And there are several times more guards standing guard than usual. The feeling of security is full. Xiaonan. After seeing Chang Haonan waiting outside, Chang Yuanchao waved towards him and quickened his pace. Hello, uncle and aunt. ??Zhu Yadan said a simple hello as usual, took the luggage from the two of them, and then handed it to a colleague in another car After solving the Allied operation in a way that no one expected, Chang Haonan''s security was raised to a higher level. ??Zhu Yadan, who originally belonged to the special service department, also took advantage of the situation and was transferred to the 9th Bureau of the Security Bureau. By the way, he was also promoted to a military rank. Now he is the leader of the team responsible for Chang Haonan''s safety. Including Chang Haonan''s car, according to Mr. Zhang''s previous intention, the number of cars increased from a single Crown to a random combination of several cars and license plates. ?For example, today, because I had to pick up someone, I changed to a Ford MPV that was not very common in 1999. And a Santana as a guard car. After several people got into the car, Chang Yuanchao scratched his head in embarrassment and said: There were only two of us on the plane just now. It felt like a chartered flight... I didnt know where to go after we got out. At first I thought it was the airport from last time, but I ended up going around and around and almost got lost in it Chang Haonan smiled: "Normally, tomorrow is the celebration. Starting from noon today, the access to the city and the main roads within the city will gradually begin to be controlled. You will not be able to pass without a pass." Nanyuan Airport? Because it is one of the departure airports for tomorrows military parade air formation, it has been closed to civil aviation since a few days ago. Speaking, he leaned over and fastened his seat belt. ? People in the 1990s generally did not have this awareness. In addition, Chang Yuanchao had been a policeman all year round. In order to get on and off the car quickly, he did not have the habit of wearing seat belts. By the way, Xiao Nan, has Jia Yao contacted you recently? ?Zhou Li, who was sitting in the back seat, also asked immediately. Chang Jiayao was selected to participate in the military parade, including going to Jinmen to participate in training. Naturally, she had already told the old couple. ?However, after the training camp started, it was not so convenient to make a phone call. ? ? Cell phones are definitely not allowed in the military camp, and the limited fixed-line phones can only be used at night. For female soldiers, the time before lights out is already very tight, so they rarely queue up. "I just went to Jinmen to see her two days ago. She asked me to bring something to you. She said she would be able to go home in mid-October." Shouldnt they be in class in mid-October? They thought the students might have extra leave. After all, they were training throughout the summer, so I didnt ask in detail Due to road control, there were not many cars seen along the way. Chang Haonan has never seen such smooth roads in the capital in his two lifetimes. So when everyone returned home, it was not even time for dinner. ?Zhou Li originally wanted to cook with Zhang Luo, but was stopped by Chang Haonan: Ive already made a reservation from the Jingcheng Hotel, and I think it will be delivered to you soon, so I wont bother you tonight... ?Given the status of the Jingcheng Hotel, there was naturally a way to get a pass and deliver meals as usual during the days when the martial law was not yet complete. Look at you kid, what are you doing so wastefully Zhou Li complained, but the joyful expression on her face showed that she was still happy. ??Chang Yuanchao, who was already tinkering with trying to turn on the TV next to him, did not save face for his wife at all, and said to Chang Haonan: Look at your mother, her lips are grinning to the sky, and she still has to pretend to be reluctant Just as Chang Haonan was about to reply, he saw the sharp gaze cast by Zhou Li on the other side. Weak, pitiful, and helpless.jpg Chang Yuanchao also understood the TV at this time. After noticing Zhou Li''s reaction, he also shrank his neck, then sat on the sofa with the remote control and stopped talking. Soon, the sound of the Beijing weather forecast came from the TV. Your dad has been watching the weather forecast since last week. Just now on the plane, he saw a cloud in the distance and told me that he was worried that it would rain tomorrow..." ??Zhou Li simply packed her luggage and was not polite, but she still sat down on the sofa next to Chang Yuanchao. What do you know? The weather forecast these days is not accurate at all. It changes from day to day. Last week, it was said that today would be sunny. But before I got on the plane in the morning, it was said that it was raining in Beijing, which delayed it for several hours..." Chang Yuanchao adjusted his posture as he spoke: If the weather is bad tomorrow, we wont see Jia Yao The weather is fine and I cant see, but Jia Yao is on the plane... Chang Haonan felt a bit dizzy as he felt like he had been stuffed with dog food, so he quickly interrupted the old couple''s display of affection by reading and writing: Dad, dont worry, the weather forecast will change in the next few days, just to create a good weather window for the National Day. ?Chang Yuanchao suddenly became quiet and turned to look at Chang Haonan. After a while, he asked with doubts: Can...our country...can control the weather now? Chang Haonan almost couldnt hold back his words: Thats not what I meant If it is found that it may rain in the past few days, use artificial rainfall to eliminate the cumulonimbus clouds before the National Day, so that the weather conditions on the National Day will be relatively better. Even if it is not sunny, the clouds will not be too low. As if to confirm Chang Haonans statement, the weather forecast also started at the right time. Beijing, sunny, southwest wind level 1, temperature 26-11桭 The next day, October 1st. It is indeed a sunny day. ??Early in the morning, Chang Yuanchao and Zhou Li were already up before dawn. Or to be precise, the old couple barely slept last night. In fact, even Chang Haonan tossed and turned very late, and he didnt even know how he fell asleep... ?When Chang Haonan walked out of the bedroom after washing, he saw the two of them already standing in the living room, even changing their clothes. Zhou Li wore a formal dress that she rarely wore before, while Chang Yuanchao... He directly changed into a police uniform. In 1999, police uniforms were still green, similar to army uniforms. Unfortunately, there is no corresponding dress for the 95-style police uniform, so I had to wear a spring and autumn uniform with relatively crisp fabrics. "Dad, it''s okay... I even brought the uniform here." As Chang Haonan went downstairs, he looked at Chang Yuanchao, who was lowering his head and sorting something out. Its not just a uniform...your dad brought all his wealth and life over the years this time. ??Zhou Li was helping Chang Yuanchao tie his tie at this time. She raised her head and said to Chang Haonan with a smile, then patted Chang Yuanchao on the shoulder and motioned for him to turn around. At this time, Chang Haonan discovered that his father had specially hung several medals on his chest. From the second-class and third-class merit in the army to the third-class hero model in the public security system after joining the police, it can be regarded as a summary of Comrade Lao Chang''s most of his life. Xiaonan, I remember that you should have won many medals. Do you want to wear them too? Chang Yuanchao fastened his buttons, stood upright in the middle of the living room, and asked Chang Haonan. "mine" ?Chang Haonan thought for a moment. One disadvantage of awarding in China is that they particularly like to receive ribbons, especially for high-level honors. Moreover, ribbons are generally extremely long and are nicknamed "athlete medals", which are very inconvenient to wear. ??Moreover, he still has several medals in his hand that cannot be made public for the time being. "never mind." Chang Haonan shook his head: I have so many medals here that I cant decide which ones to wear and which ones not to wear at the moment, so I might as well leave them all at home. Anyway, the invitation didnt say that I must wear them Chang Yuanchao''s face froze, and he felt that his son''s words revealed a bit of strange show off... The second and third class merit medals on his chest suddenly felt dim. Ahem He coughed twice: Then...lets leave now? This is not urgent. Chang Haonan shook his head, came to the living room, and started tying his tie in front of the mirror: There will be a bus to pick us up later... (End of this chapter) Chapter 766 On the viewing platform Chapter 766 On the viewing platform ?There are three main situations where people can be invited to watch the military parade on site (of course, those who go directly to the tower must be excluded here, only those on the viewing platform are counted). First, like Chang Haonan and Ding Gaoheng, they have reached their positions and are in the capital. They are still idle, so they have to go and take a look. This kind actually accounts for only a small part. ?Because the vast majority of people of sufficient level will be so busy that they hit the back of their heads on October 1st and have no time to attend. The second one is the foreign representatives in China. It goes without saying that all of them will be invited, whether it is for the purpose of universal celebration, to demonstrate the majesty of a great country, or simply to show off. ?However, the number of people is actually not that many. Counting all countries, regions, and international organizations, there are only about 300 people, which together cannot make up to 1,000 people. ?Most of them were invited as outstanding representatives of all walks of life like Yan Yongnian. Including Chang Yuanchao and Zhou Li, this is also the case. So, when the old couple first got in the car, they subconsciously thought that the other people in the car were in a similar situation to themselves. But the matter of pick-up and drop-off is obviously a recent issue of zoning. And where Chang Haonan lives... In short, Comrade Lao Chang soon discovered that he seemed to have seen some of the faces in the car on TV. ??Although they are not the ones in the front row, they are familiar to everyone on Xinwen Network... Lao Chang felt a little stiff for a moment. Chang Haonan, who was sitting next to him, also noticed something strange about his old father, so he gave the latter a look to reassure him. In fact, if it were normal, these people would definitely have their own cars. ??Its just that on the day of the National Day, in order to make room for the parade around Changan Avenue, ordinary leaders are definitely not qualified to use it. ?When several minibuses arrived at the ceremony site one after another, the sky was just getting bright. ?However, the troops on the ground receiving the review, as well as the people responsible for the performances and celebrations on the scene, are already in place. ?From the position where you get off the car, you can even directly see several towering radars in the distance. Shorter equipment will not be visible. ?In Chang Haonan''s impression, the 1999 military parade in the previous life did not seem to have any air force radars on display. He has dealt with a lot of electronic technology systems in his life, and he has never heard of any new models developed by them. ?That may just be the command vehicle of the Army''s field air defense system. ?But even so, Lao Chang still subconsciously stretched his neck to take a look over there. As a result, Zhou Li pulled back this somewhat unsightly move: "You can watch whatever you want on the stage later. Be honest here and don''t cause trouble to Xiaonan!" ??Chang Haonan and the three others were placed on the westernmost side of the east viewing platform. Actually, Chang Haonan didnt understand exactly what the arrangement was at the beginning. But no matter what, being relatively in the middle is always a good thing. As more and more people took their seats, he quickly recognized a few familiar faces in the crowd. They are all model masters who have worked together before, or at least have a relationship with them. ?There are also People''s Liberation Army officers. I wish you all the best, long time no see. How is your work lately? ??This is Zhu Yusheng, the chief designer of the domestic third-generation main battle tank, whom Chang Haonan met when he was working on the die forging press at the Northern Vehicle Research Institute. Mr. Chang? Zhu Yusheng shook hands with Chang Haonan with his left hand: Thanks to you, the progress of the new tank is much smoother than expected. More than a dozen prototypes have been built. They will be organized into a separate formation to be reviewed today..." Commander Shen ??This is when Chang Haonan went to the 4th HNA Division to test the JH-7, and the commander Shen Tao was driving the Y-8J there. There should be one Y-8J and one Y-8X in their group today, but for some reason Shen Tao himself appeared on the ground. Mr. Chang Hey...forget it, I was on duty at the South China Sea Fleet during the selection of aircrews for training. When I got back from training, the day lilies were already cold..." ?After the embankment building operation, the Chinese Air Force and Naval Air Force gradually increased the intensity of patrols in the South China Sea. Although the Y-8J proved to have some flaws in that operation, at least it was not suitable for use against NATO and its allies, after all, the air time and sea detection capabilities were not bad, and the flight cost of the turboprop transport platform was relatively low. , very suitable for containing opponents in indirect confrontations. Thats a pity indeed ?Chang Haonan couldn''t think of any good way to comfort the other party. At Shen Tao''s age, it is absolutely impossible to catch up in the next ten years. Deputy Commander Huang ??Regiment Commander Huang Linqun, who was stationed at Jiangling Embankment two years ago, has now achieved the rank of senior colonel. Guo Gong... ????It is naturally Guo Lin who has a deep cooperative relationship with Chang Haonan. ??Of course there are some people who are beyond his expectation. Researcher Xu? ?Chang Haonan looked at Xu Yang behind him with shock on his face. "I reported it from the Institute of Computing Technology, a representative from the scientific research community. How is it? Are you surprised?" ?? Xu Yang was dressed fashionably, took off the sunglasses on his face, raised his hands to block the sun, and then looked at Chang Yuanchao and Zhou Li next to Chang Haonan: These two should be Oh, its my father and Jia Ci... Chang Haonan himself never expected that in less than four years, he would already have such a broad network of contacts. ?Even before I had even finished greeting everyone I knew nearby, the orchestra across the street had already played the "Welcoming March." This is the signal for the review chief and special guests to appear. Sure enough, warm applause erupted from both sides of Chang''an Avenue. Before this, Chang Haonan always thought that using thunder to describe applause was an exaggerated metaphor. But this time, he realized that it could also be a normal description. Even the sound of military music can be drowned out. ?Of course, the main force of applause was the tens of thousands of ceremony staff opposite. Otherwise, these thousands of people on the viewing platform alone would not have been able to create such an exaggerated effect. About two or three minutes later, an energetic voice sounded: The gathering of all walks of life in the capital to celebrate the 50th anniversary of the founding of the Peoples Republic of China begins now! Sound a salute! ??As the leader who presided over the ceremony on the city tower finished speaking, the enthusiasm instantly turned into silence. The applause and military music all fell silent. The salute of fifty guns was fired to pay tribute to the fifty years that the Republic has gone through. At the same time, the national flag guard set off from both sides of the Monument to the People''s Heroes, holding a five-star red flag and converging into a military-colored torrent, slowly walking along the rolled-out red carpet towards the flagpole standing on the square. The eyes of everyone on the viewing platform and the tower were focused on them, the national flags in their hands, and the monument behind them. History will never forget the sacrifices made by millions of Chinese heroes who fought for the independence and liberation of the nation. Pa-pa- ?The moment they crossed the dividing line, the guards changed their steps to goose-step. The rhythm of the neat steps was clearly audible even in the sound of the salute. ?Under the flagpole in the square, the 12 ranks of team members were divided into two again and re-arranged. Three flag bearers fixed the national flag to the rope of the flagpole. ification The rifle is tilted down from the shoulder and touches the ground. At the same time, the 50th gun salute was fired, and the scene returned to silence. Everyone stands at attention! Raise the national flag and sing the national anthem! Even Chang Haonan, who thought he was used to big scenes, felt his heart beat twice irregularly when he heard these words. Chang Yuanchao, who was next to him, stood up even more. "salute!" A command was given not only to the PLA and Armed Police commanders and fighters present, but also to everyone The honor guard raised the rifle to his chest again. ??Across Chang''an Street, a sea of ??golden flowers turned into the shape of the gold and red national emblem. ?Young Pioneers put the five fingers of their right hands together and raised their heads high... Following this, the conductor of the military band raised his baton again. Arise, you who do not want to be slaves The sonorous and powerful national anthem resounded through the sky. The five-star red flag rises slowly against the sun that has just emerged from the clouds! (End of this chapter) Chapter 767 Military Parade of the Century Chapter 767 Military Parade of the Century After the national flag is raised, there is a military parade. That is, the troops under review line up, and the parade members pass in front of the line for review. A specially modified extended version of the Hongqi sedan drove up Chang''an Street along the Jinshui Bridge with a red carpet, and stopped in front of another car that had been waiting for a long time. Between heaven and earth, there was silence. ?Li Liangxin raised his hand and saluted the old man opposite: Comrade Commander, the troops under review are ready. Please review them. The commander-in-chief of the parade, Li Liangxin! "start!" "yes!" While the military parade march was played again, two red-flag vehicles started staggered and slowly drove towards the troops being reviewed who were already ready. Hello, comrades! Hello, Chief Good job, comrades! Serve the people! Greetings and answers came back and forth, sonorous and powerful, converging into a huge sound that echoed over the ten-mile street, like the echo of history. "grandfather." On the viewing platform, a teenage boy wearing a red scarf turned his head and looked at the old man behind him. ??The latter was wearing a Type 58 Air Force uniform. His figure was already slightly stooped, but he still looked energetic against the backdrop of the military uniform. Why do they answer like this? When the sound gradually subsided, the little boy stood up on tiptoes, leaned into the old man''s ear and asked. Answer what? The old man could not understand his grandson''s problem for a while. The grandpa who was sitting in the car just now kept saying that comrades have worked hard. Shouldnt he answer that its not hard? Obviously, for primary school children, this logic is relatively straightforward. ?At this time, the old man understood and showed a cheerful smile. How can it not be hard work? He answered slowly: Being a soldier is hard work. Not only is it hard, but its also dangerous... Grandpas arm cant be lifted when its cloudy or rainy. Its an injury caused by being a soldier when he was young... ?He raised his head slightly, his slightly cloudy eyes shone slightly, as if he saw himself when he was young decades ago: "However, because our army serves the people, whether it is hard work or danger, it is secondary and can be accepted." Thats why our army is called the Peoples Liberation Army In a few years, you should be able to learn this text. The old man touched his grandsons head: There will be sacrifices when we struggle, and people often die. But we think about the interests of the people and the suffering of the majority of the people. When we die for the people, we die well..." ?While the old man and the young man were talking, the review car had already returned to the north of Jinshui Bridge. ?Although todays celebration is customarily called the 50th Anniversary National Day Military Parade, the real military parade actually only occupies a very small part of it. First of all, the duration of the military parade was too short. The leaders walked by in cars and ended in five minutes. Secondly, for other spectators, there is no sense of participation in the military parade. After all, it is impossible for everyone to ride there together, and the almost endless queue in the distance cannot be seen clearly from the viewing platform. And the National Day is a universal celebration. Those who made the celebration plan also knew very well that everyone must have an eye-catching experience. So, the big head is actually still a disaggregated form The troops being reviewed passed in front of the reviewing stand and were reviewed. The atmosphere at the scene became lively again after the big leader gave his speech. Li Liangxin may be the commander-in-chief of the military parade with the best Mandarin skills since the founding of the People''s Republic of China. At least the words "distribution, start" are quite clear. As his words fell, the military band played the march again. At the head of all the formations is naturally the honor guard of the three armed forces holding the military flag. ?Chang Yuanchao, who was next to Chang Haonan, straightened up a lot almost instinctively. Comrade Lao Chang worked as a grassroots cadre in the army more than 20 years ago. Later, he changed his career and became a policeman. He even went to the front line to fight. This is how his second-class merit comes from. The third-class merit award is a routine award after serving in third- and fourth-category marginal areas for several years. Chang Yuanchao''s eyes followed the honor guard of the three armies. It was not until they crossed Xihuabiao and returned to the same pace again that he turned back with some reluctance: Actually, when I first joined the army, I applied to join the honor guard, but was rejected because my height did not meet the standards. Even though it was accompanied by the sound of marching music, the viewing platform was separated from the opposite side by a whole street and the Jinshui River, so it was not impossible to hear the voices. ?Chang Haonan glanced at Chang Yuanchao with some suspicion: Dad, how dare you go with your conditions... Because he was worried about overly damaging Lao Chang''s self-confidence, he still didn''t finish the sentence when he arrived. Hey...the standards for selection of honor guards also change with the times. When I was young, I was quite tall among people of my age. I could have touched the minimum standards for the selection of honor guards. When I was that year, I had filled in my application form, and the Ministry of Armed Forces suddenly said that the standard had been raised by 3 centimeters, and I was transferred to the field force Obviously, this incident carries a very important weight in Lao Changs memory, otherwise he wouldnt have remembered it for so many years Chang Yuanchao''s height in 1999 would only be considered slightly higher than the average height of northern men, but if it were more than 20 years ago, it would indeed be more conspicuous as he said. Lao Chang turned his attention again to the subsequent queue passing in front of him. For Chang Haonan, a reborn person who has watched the documentary of this military parade, the foot formation has not changed much compared to the previous life, so there is not much to watch. The 1999 military parade focused on highlighting the construction of the military system and personnel training for the new century, so there were an exaggerated five formations of college cadets from each branch of the military, so much so that the on-site commentators were Instead of explaining them one by one, I lumped the three in the middle together. The only change was that the original two militia squadrons were reduced to one due to the increase in the number and size of the equipment squadrons. ?However, for someone like Chang Yuanchao, who has served as a soldier, it is obvious that there is still something to be desired. Dad, are there any of your old troops here? ??Taking advantage of the gap between the foot formation and the vehicle formation, Chang Haonan approached and asked. My old troops were all laid off later ?Chang Yuanchao''s eyes were filled with nostalgia. But the nostalgic look in his eyes was soon replaced by excitement and joy. Because on the street in the distance, a rolling torrent of steel has appeared. When the tanks of the first vehicle formation appeared in everyone''s sight, the applause at the scene even drowned out the roar of the diesel engine and the sound of rubber tracks running across the asphalt road. The military band also played the "Chariot March". ?Even the leaders on the Tiananmen Gate Tower couldnt suppress the smile on their lips when waving greetings... Men, who doesnt like armor and cannons? Since it is not Haonans main area of ??effort, Huaxias ground equipment is still relatively monotonous at the moment. Theres nothing fancy about it. ?Hence, just like in the previous life, three tank formations were assembled. ? ? Naturally, the commentator would not reveal the equipment model directly. He would just name it after the tank unit X and the new main battle tank, and then enter the routine evaluation process. But the more experienced people can still see that the last generation of the six teams of road wheels, the 88B main battle tank, is the "round head" in the lead. Chang Haonan noticed that from a little distance away, the frequency of foreign guests invited to the ceremony raising various cameras or telescopes was significantly higher than before. ?At this time, the degree of openness of the Chinese military is not very high. The military parade is a rare opportunity to directly observe Chinese weapons and equipment at close range. ??Whether you regard China as an imaginary enemy, or you want to buy some equipment from China, you can''t miss it. Compared with the model they displayed during the last military parade, these tanks seem to be enlarged? In the front row of the viewing area for foreign envoys, a brigadier general wearing a U.S. Air Force uniform lowered his voice and said to his companion who was holding a camera to focus. ??Ralph J. Jodich II, also known as Zhou Ruifu in China, was an American military attache stationed in China. Since he is an F15E pilot, his understanding of tanks is basically limited to distinguishing between ourselves and the enemy from an overhead perspective. ?Hence, in his opinion, the difference between the models of these semicircular turrets is not very big. The colonel next to him is the technical counselor of the Military Attach, and his Chinese name is Bai Lide. At the beginning of the year, I was still preparing for the Allied Forces Operation in Europe. I was transferred from Europe to China just two months ago. Last timeI thought you were talking about what they called the Type 79 tank. As an army officer, Bai Lidui''s major is the study of armored combat. In addition, he had read some materials before coming here, so he naturally knew what Zhou Ruifu was talking about: "Although they look a bit similar, they are only the first-generation tanks modified with our and British technology, and this... they should be called the Type 88, which is already a more advanced model among the second-generation tanks." After explaining, perhaps because he was worried that his leader still had no idea, he added another sentence: Probably similar to our M60, with firepower, mobility, and protection. ?Zhou Ruifu nodded, obviously understanding this time A level of technology roughly equivalent to an early 1970s model. Don''t need to care too much. The tank of the second formation is the 96 basic type. For most people at the scene, this was the first time they had seen a domestic tank without a round head. Even if you dont understand weapons and equipment, just from the appearance, the angular turret looks more like those advanced models on TV. The atmosphere at the scene was even more enthusiastic than before. ?Zhou Ruifu had no reaction. In his opinion, since the Chinese would put a model equivalent to the M60 on the military parade, it means that they probably don''t have any better models. Is this the actual situation... Its really about the same. The performance of the basic model 96 is really not much better than that of 88A/B. In most of the information available at this time, this model actually retains the name of the original 88C. Obviously, this can only be regarded as an in-depth overhaul of the second-generation tank. ?This time, even Bradbury only took two photos. For a knowledgeable person like him, he could tell at a glance that the tanks of the first two formations used similar chassis. So just taking some turret details is enough. Then, Bai Lid focused the camera on the third-party team that had not yet arrived. ??One of the important tasks of the Technical Counselor of the Military Attach is to track the development of military equipment in the host country. This is even public. The latter model of tank can be said to be the only ground equipment he is interested in today. ??Looking at Liddell, who was continuously pressing the shutter and showing that he was not sparing the film, Zhou Ruifu also stuck his head out and looked over. Those tanks, they seem...different? In fact, if it is the earliest prototype car plan, then laymen may not be able to immediately tell the difference between it and the previous 96. But what is now on the military parade has gone through a round of major changes. Especially the chassis has undergone earth-shaking changes. Although the power package is still the 1200-horsepower version, the overall design has begun to move closer to the later 99A. It is a huge leap that can be seen by the blind. ?However, the turret retains the oldest version without the wedge-shaped armor. When combined together, they feel a bit light-headed and heavy-footed. We have been tracking this model since the early 1990s. ???Bride did not put down the camera, but pressed the shutter and said: But the Chinese are very strict about keeping it secret. We have obtained some pictures and technical information, but many of them are contradictory. At first glance, it is a smoke bomb thrown by them. Two years ago, those losers from the Army Intelligence Department promised that they had obtained the technical solution for Chinas latest tank, but compared with the actual object today... it is completely different. The tone was very disdainful. ??Zhou Ruifu next to him, as an air force commodore, naturally couldn''t follow suit, but he couldn''t help but curl his lips. Information errors kill people. He thought for no reason about the B2 bomber that was shot down a few months ago. To this day, no one knows the whole process of its downing. No one knows how the other side obtains stable detection of stealth aircraft. In fact, the Army Intelligence Department was completely wronged this time. ??The appearance they guessed from a few blurry photos is actually very accurate. But I couldn''t stand it. In the past two years, the 9910 Project has changed to an almost earth-shaking new plan... Not far away from the two of them, their Russian counterparts were doing almost the same thing. There seems to be no trace of T72 or T80 at all ?Andrei Lipilin touched his chin and said to himself. He knew that China had obtained a T80 and more than one T72 through some channels and conducted detailed tests. Therefore, he had always speculated that China''s third-generation tanks, even if they were not imitations, should be inextricably linked to these two models. contact. But what we saw today was something completely different. The turret still looks a bit like the T72A...especially the size of the seat ring is exactly the same by visual inspection. Considering that it is also a three-person crew, I estimate that the loader should follow our design. ??A lieutenant colonel next to him held a telescope in his hand. After hearing Lipilings words, he said: However, the turret and the chassis look completely incoordinated. It should be just a temporary fill-in. It will be replaced or additional armor added when it is mass-produced. I just dont know what the inside of the tank looks like. I wonder if I can find a chance to take a look... On the Tiananmen Gate Tower, General Zhang leaned out slightly and looked at the neatly arranged square formations. He couldn''t help but think of the scene when he served as the commander of the 127th Division. ?Twenty years ago, his troops also lined up for review in this way and then went directly to the battlefield in southern Xinjiang. The difference is that parked behind these troops at that time were only about thirty light tanks, a hundred old-fashioned artillery pieces, and trucks that could only undertake transportation tasks. ?He won that battle. He also made great military exploits. But the process is extremely difficult. In the absence of advanced technical equipment, the only things the army can rely on are experience and will. But these two items can only be produced by tempering them in blood and fire. The process of hardening is inevitably accompanied by sacrifice. A lot of sacrifice. ?At a time when the country most needs a large number of young people to invest in development and construction, batch after batch of brave, loyal and strong vanguards have fallen on the battlefield. Later, he rose through the ranks, from division commander to corps commander, to military region chief, and to his current position. But the scenes of commanding operations on the front line in those years have always lingered in my mind and cannot be forgotten. He also thought more than once that if he could have equipment and resources equivalent to those of the US military in the 1960s, without even using more advanced equipment, he didn''t know how many young comrades'' lives he could save. And today Main battle tanks, self-propelled artillery, tactical missiles ??Things he had expected back then, and even things he didn''t dare to expect back then, are all lined up here to be inspected by the motherland and people. As one of the most senior commanders of this army, General Zhang inevitably felt a sense of excitement about getting what he wanted. However. ?This feeling only lasted for a moment, and he suppressed it vigilantly. Its not time to be proud yet Lao Zhang stretched out his hand to hold his military cap, and secretly warned himself in his heart. More than three years ago, he was also the one who personally directed the deterrent tri-service joint exercise. Just the final result Its hard to say that its satisfactory Laymen watch the excitement, while experts watch the door. ?Although the scene of the exercise was unprecedented, the organization of the exercise was also smooth. However, in the second half of the 1990s, the participating troops still used domestic first- and second-generation equipment as the main force, and the exercise format was still the traditional one. The commentary of "thousands of troops crossing the strait" is good from a propaganda point of view, but from a military point of view, the beach landing method, which still relies mainly on landing ships and assault boats, is undoubtedly unable to meet the combat needs of the new era. In fact, even this traditional form of combat is subject to the dilemma of insufficient resources - ??During the Normandy landings in 1945, the Allies still had 13 battleships to provide land fire support. However, three years ago, the People''s Liberation Army even had to move army artillery onto landing ships due to insufficient firepower... ??The moment of satisfaction and elation just now was suddenly replaced by a touch of invisible pressure. Although the country has gradually begun to increase investment in national defense construction after 1996, there is still great pressure to speed up military construction without affecting economic development. Not only external, but also internal. There is still a long way to go Old General Zhangs eyes changed slightly. ?However, after all, there are only a few people who can think of General Zhang. Most people at the military parade still have a simple mentality These tanks and artillery today are much better looking than those seen on TV before... Chang Haonans perspective is obviously the most special among all. As a reborn person, he is more interested in the difference between this military parade and the previous life. The third tank team is the first obvious change. 18 tanks, all Type 99 prototypes. Although it has not yet been finalized and put into service, at least there is no need to use Type 96 to recharge it later. He turned his head and glanced at Zhu Yusheng next to him. However, he found that the latter was also looking at him at this time. The old man and the young man met their eyes, and then nodded to each other at the same time. ?Chang Haonan could see that Zhu Yusheng''s thin body was trembling slightly. Obviously due to excitement. The model designed by oneself shall be reviewed by the motherland and the people. For any weapons designer, it is a supreme honor. ?Thinking of this, he subconsciously raised his head and looked at the sky to the west. Belongs to his home court, it hasnt started yet (End of this chapter) Chapter 768 The Air Force is the big deal (4K) Chapter 768 The Air Force is the highlight (4K) At the same time, in Yangcheng, in a conference room of Yixian University Press. Several young people were staring at the TV screen eagerly. On the conference table in front of them, there were a lot of beers and snacks. Is this... the equipment formation the highlight from the moment it comes up? ??A young man wearing a half-sleeved shirt was holding a beer can, but the movement of his hand was still in mid-air. ?Those who can gather at their units to watch the military parade on their rest days are obviously die-hard military fans. But they didnt recognize the model of tank in front of them. So, I had no choice but to turn my attention to Xi Boyang, who has been contributing articles to major magazines since college. But this time, even a trace of hesitation flashed in the latter''s eyes: It seems...its the Type 98 that has been rumored about before? ?In this era, because the People''s Liberation Army is still relatively open to the public, many things, including the names of equipment, are passed down based on rumors. Including the Type 99 tank. Since the prototype was first observed in 1998, it was misreported as the Type 98 for a long time. Butit doesnt seem like it Xi Boyang shook his head, and then asked: Should the video recorder be turned on? Another older man nodded: Of course its open, Im also going to make a copy and keep it home. I talked to a friend in Beijing yesterday who I met online. He said that during the previous rehearsals, the vehicle formations would pass by their house and they didnt find much new things. ?The person who spoke first spoke indignantly: Theres not much new stuff here? ??If someone hadn''t been pulling him beside him, he would have almost gotten up and rushed to the TV screen. ?However, Xi Boyang behaved much more steadily: "The first tank formation is 88B, the second is 88C, and when the third formation sees new tanks, I estimate that the situation of the entire ground equipment is similar. Even we feel that there are not too many new tanks. Soon, his prediction was verified ?Following the three tank formations, the Type 86 infantry fighting vehicle, the Type 89 armored transport vehicle, the Type 92 infantry fighting vehicle, the Hongqi 7 anti-aircraft missile... For the vast majority of the guests invited to watch the ceremony, and even the people across the country who are watching the live broadcast of the military parade on TV, these things have rarely been seen on TV in the past, so they are naturally full of freshness. But for those who have paid attention to the military for a long time, it seems a bit ordinary. What Boyang said is really right. The atmosphere in the conference room has calmed down a lot: Except for tanks, they are all old equipment...most of them still start with 8..." At the military parade, Zhou Ruifu made a similar judgment after seeing almost half of it. I think, judging from the ground equipment displayed by the Chinese army today, their most cutting-edge weapons are probably the ones that started research and development about ten years ago, and they are also familiar to us. He said to Liddy, who was changing the film in the camera next to him. China introduced a series of Western technologies in the early to mid-1980s. However, due to the breakdown of the relationship between the two parties in the late 1980s, a considerable number of models did not have time to be finalized and were forced to switch from technology introduction to imitation. ?In Zhou Ruifus view, almost ten years have passed and its time for the Chinese to understand the technical research back then. From what Ive seen so far, the only exception is the new tank you just mentioned. Maybe it contains some Russian technology? For Zhou Ruifu, who spent most of his career in the Cold War, it is difficult not to think of the Soviets when talking about tanks. Whats more, Chinas military industry is closely related to them. I cant say, unless you can see the internal style, everything can only be a guess. ??Bride shook his head: But no matter what, at least from the appearance, there are not many traces of imitation. After a short pause, he continued: As for the remaining models, I agree with you. "The main guns of the tanks at the front are L7 imported from the UK, and the smokers are very obvious. The anti-aircraft guns just past are obviously Swiss Oerlikon GDF-003, and the short-range anti-aircraft missiles should be French. The Sidewinder is just a Chinese version mounted on a trailer chassis. The original French version uses electricity. It is said that it cannot even drive 100 kilometers on a single charge..." As a technical counselor stationed in Europe for a long time in the past, Bradbury is almost familiar with these equipments. Although they should be able to produce it themselves, they are still the models we are familiar with. ?In military confrontations, being familiar with your opponents equipment means you can gain a huge advantage. What''s more, in the eyes of the two American officers, these things in front of them are not considered advanced. Look, there should be their naval equipment behind them. ??Bride pointed to a few rows of trucks approaching in the distance. It is naturally impossible for warships to drive onto the ground, so the navy can only participate in the parade in the form of "trucks pulling missiles." Naval equipment ?Zhou Ruifu laughed slightly contemptuously. He is not just bragging. When it comes to the navy, even at the peak of the Cold War in the early 1980s, the U.S. Navy had never been afraid of anyone. What they have to worry about is never whether they can defeat a certain opponent, but whether they can defeat all other countries in the world. Although Bai Lide next to it was not very obvious, the idea was obviously almost the same. ?However, their smiles did not last long ?After the Hongqi-61 and Haihongqi-7 ship-to-air missiles, as well as the YJ-8A and YJ-6 anti-ship missiles, the Air Forces air defense force phalanx came next. The first two rows of the square array are 8 Red Flag 2A surface-to-air missiles. ?This is nothing. The ultimate improved version of the S75, from the perspective of the late 1990s, basically has no other advantages except that the warhead is large enough and the power section is long enough. But behind them is an even older weapon. Eight Type 59 100mm anti-aircraft guns. ?) When Zhou Ruifu saw this thing, his expression froze instantly. ?After the Allied operation ended in chaos, the U.S. military quickly began to investigate what happened in the dozen or so hours from the night of April 17 to the early morning of April 18. After all, there were witnesses nearby when the Spirit of Kansas was shot down. In fact, there is no need to investigate at all. ??The Confederate Army kept complete firing records. After the war is over, it is natural to promote the war heroes. So just buy a few newspapers and youll find the results ?Several -19 anti-aircraft guns fired a round of covering barrage on the only path B2 must pass. ?This is also consistent with what the EA6B crew members witnessed. The Type 59 anti-aircraft gun in front of us is a Chinese imitation of this model. Look almost exactly the same. Although everyone knows that it is extremely unlikely for a modern fighter plane to be shot down by a large-caliber anti-aircraft gun, the other party also paid a considerable price to set up this ambush. ??But no matter what, it is an irrefutable fact that two of the most advanced stealth aircraft were shot down by two old weapons, S125 and -19. The wreckage is all in other peoples hands. It affects morale very much. It is no exaggeration to say that the entire US Air Force is almost suffering from PTSD over this thing. ??Now that China has put similar models out for military parades, it is obviously based on the battle examples in Allied operations. It is obvious that the U.S. military is in decline, which is something that people all over the world like to see. ?Those propaganda reports are already all over the sky now. ?Especially in China, several news programs were dedicated to introducing this incident. So, when these anti-aircraft guns passed in front of us, there was a sudden burst of applause from the surroundings. Even the military attaches from several countries turned their heads and looked at the two Americans meaningfully while applauding. ?Zhou Ruifus face turned red and white, and his fists felt hard. ?Qi shaking cold.jpg Comrade Liangxin. Old General Zhang turned his head and looked at Li Liangxin, who was standing in the second row. A smile appeared on his face that had been serious before: Your arrangement is really good. As he spoke, he pointed to the eight anti-aircraft guns that had already moved away in front of him: It seems that the response from domestic and foreign audiences is very enthusiastic. As the main leader of the army, Mr. Zhang certainly knows the sequence of troops to be mobilized for the military parade. In fact, when the reference units were first selected in March this year, the formation in front of us was still a "medium- and long-range air defense missile formation." But the Balkan crisis occurred in April, and the combination of passive anti-stealth radar and large-caliber anti-aircraft guns became famous in one battle. The existence of the former cannot be declassified for the time being. After all, once it is leaked, it is likely to be associated with China and the downing of the B2. Naturally, it is impossible to show off in a military parade. But the anti-aircraft guns are no problem. After 1991, the Chinese army, which realized that old-fashioned anti-aircraft missiles were unreliable, had long since dragged out the Type 59 anti-aircraft guns and formed several mixed air defense brigades. It is reasonable to refer to anti-aircraft guns and missiles together now, right? ?Besides, Hongqi 2A is not an advanced piece of equipment in the first place. It is not shameful to be followed by several equally unadvanced anti-aircraft guns. ??It can also scare, or at least disgust, the U.S. military. Now it seems that the effect is pretty good. By the way, Liangxin. Mr. Zhang leaned over a little: That young comrade named Chang Haonan should also be here today? Definitely there. Another leader next to him heard the conversation between the two and turned around to intervene. ?During the process of sorting out, the big leaders themselves are in the spotlight and it is definitely difficult to look around, but for those of them standing nearby, it is not a big problem for them to sneak away for a while. Two months ago, I accompanied the chief to Jiangcheng to inspect a National Day gift project. Comrade Chang Haonan was the person in charge of that project. After the inspection, he specifically asked us for several invitation letters, saying that they were for other comrades in the group. I also specifically asked if it would be better for him to reserve one for himself, but he said that he already had one ?In fact, even Chang Haonan did not expect that Li Liangxin would actually bring the Type 59 anti-aircraft gun to the military parade. ?When he saw this formation of ground guides and anti-aircraft artillery, he almost couldn''t hold back his laughter. Fortunately, only anti-stealth radars were displayed but anti-stealth radars were only displayed, which also reflects the Chinese side''s habit of keeping one guard up in everything. There is no need to worry about people linking China with the shooting down of the B2. ??It is appropriate for the Russians to carry this responsibility for the time being. ?In such a warm and even joyful atmosphere, no one even paid attention to the S300PMU following behind. ?Of course, this is largely because the commentator did not imply that China has introduced the S300 production line as he did in the previous life, and only introduced it as an ordinary high-performance equipment. ?Concerning this matter, when he went to Wuqing Airport two days ago, Zheng Liangqun also specifically consulted Chang Haonan and Ding Gaoheng for their opinions. The latter two agreed that there is no need to engage in such a meaningless bluff, considering that the equipment level of the aviation force has made a qualitative leap, and even the domestically produced third-generation fighter jets will soon be put into service. ??If such a wave comes out of nowhere, it will appear that we are not confident enough. So on the eve of the military parade, another deletion was made before the final version was finalized. The ones who reacted the most to this change were naturally several Russian military attachs. As for the original version of the commentary, China has naturally communicated with the Russian side. Otherwise, if you make a lot of hints, but others are confused and say that I have never sold it, wouldnt it be a joke? But today, Andrei Lipilin, who was listening to the commentary complacently, found that it seemed a little inconsistent with what he said before. He quickly checked with the translator next to him. There is indeed no mention of anything related to self-developed or domestic production. ?This made Lipilin feel a little flustered. ?The reason why Russia agreed to cooperate in the first place was naturally not out of the spirit of internationalism, but for business reasons ? To describe the imported S300 as domestically produced clearly shows that the Chinese are very satisfied with the performance of this model and regard it as a weapon to deter potential opponents. But now Is it possible that they have developed a new type of anti-aircraft missile? ?Lipirin was mired in self-doubt. Although I have not heard that the Chinese have made any particularly huge progress in missile technology in the past two years, considering that they seem to have been hiding and then suddenly developing in the fields of aviation and machinery manufacturing, it does not seem impossible... After much thought, he decided to report the situation to the country and ask Antai to speed up the delivery of the 4 camps of S300PMU1 ordered by Huaxia last year, and at the same time speed up the testing and development process of the latest models S300PM2 and PM3... At this point, the foreign representatives on the scene already had their own thoughts. Following the ground equipment formation, the entry of the air formation pushed this situation to its peak. Since todays weather conditions are far better than those on October 1st in the previous life, with extremely high visibility and almost no wind, the air formation adopted the lowest flying altitude among the three preset plans. ?Especially the Bayi Aerobatic Team who took the lead. ?A Hongyou-6 carrying eight JJ-9Ys passed over everyone''s heads at a height low enough to give people a slight sense of oppression. ?This time, Zhou Ruifu changed his previous careless attitude and took a series of photos with his camera pointed at the sky. He really served... At the Singapore Air Show in 1997, the export version of the JJ-9 FTC2000 had conducted ground and flight demonstrations. But it is one thing to build an aircraft for verification, and it is another thing to put the new technology into mass production and equip the troops. What''s more, units like the aerobatics team are involved. It shows that the Chinese people have strong confidence in its aerodynamics and control stability. Furthermore, this model has only had relevant information since mid-1997, and it has already completed the testing process in just over two years. He reasonably speculated that the Chinese people may have already begun to study the related technologies of the DSI air inlet, but they have been doing it secretly without anyone noticing... This is a bit scary. ?Zhou Ruifu frowned. ??The two large machine formations at the back are nothing to look at. Even on the Chinese side, the H-6 is not considered a new piece of equipment. Although the J-8D has only been in service for a few years, it is essentially not much different from the J-8B. It was already seen as a model of peace. What he was looking forward to was the model that appeared at the first Xiangzhou Air Show in 1996. ?Based on the comprehensive inference of the internal wall climbing deployed in Shengjing and satellite photos, China should have equipped 3-4 regiments of J-8C. The navy and air force have conducted several trials before, but the Chinese are very vigilant. Even if they dispatch the J-8C, they rarely make long-term visual contact. Hence, it is unclear whether there is any difference between the mass-produced version and the original version. In other words, it is whether to reduce allocation. If not, then the threat of this model should still be considerable. ?Although the aircraft body is still a second-generation aircraft, judging from the movements of the original flight show, some of its performance are comparable to those of light third-generation aircraft such as the Mirage 2000. But the more I look forward to coming, the less likely I am to come. The fourth and fifth formations are both fighter-bombers. ?Zhou Ruifu did not have a deep understanding of the JH-7, but he knew that the F4EJ of the Air Self-Defense Force had fought against this model before, and had not gained any benefits within visual range. "etc" It was only then that he suddenly noticed that these Chinese aircraft were all in combat mode with ammunition hanging on them: Its a bit interesting Compared to the aircraft itself, Zhou Ruifu is more interested in changes in these details. ?This seems to indicate that the training intensity and ground maintenance level of the Chinese Air Force are gradually improving. Don''t underestimate this small action of hanging a bomb. ? Pylons and guide frames are one of the most prone parts of an aircraft to malfunction, and each aircraft has anywhere from a few to a dozen, which requires a huge amount of maintenance work. ??It would be great fun if an auxiliary fuel tank or a missile or something fell down. Since they dare to do this, it shows that they are very confident in the maintenance level of the aircraft. ??When 3 groups of 12 J-8Cs appeared in the viewfinder, Zhou Ruifu''s first reaction besides pressing the shutter was to glance at the British military attache not far away. He knew that about two years ago, a Royal Navy fleet was penetrated into the air defense circle by several Chinese aircraft at low altitude. One of the aircraft imitated the Afghan A4 during the Falklands War and threw two auxiliary fuel tanks at the Royal Ark. It seems to be the J-8C that did it. ??This incident was later handled in a low-key manner, including the photos taken by reporters on a civilian ship present, which were also destroyed. The Royal Navy was even more secretive about the specific situation. But its probably impossible to hide it from an insider. ?Sure enough, the British military attache did not raise his head, but looked at the crowd opposite with a complicated expression. Zhou Ruifu''s mood suddenly became less bad. He took the camera off his neck and prepared to take out the film. According to previous estimates, after the J-8C appears on the scene, there should be nothing important. The most important one is the Su-27SK, but this model is no stranger to the US military. ??They have even obtained an original Su-27S, so there is no need to try to tell anything from the military parade. At the same time, the female commentators voice also sounded again: What is flying over now is a high-altitude, high-speed fighter echelon composed of two regiments of a certain aviation division. This is the main aircraft type of the Peoples Air Force in future anti-aggression operations. It is composed of three groups with a total of 12 aircraft..." Until this moment, General Zhangs calm expression finally changed again. ??If just now he felt that there was still a long way to go, then at this time, at least the dawn is beginning to appear. The main aircraft type in future anti-aggression operations, this was what he personally added when deciding on the commentary. In fact, even from the current perspective, the two domestically produced third-generation aircraft are progressing smoothly and will probably begin to be equipped with troops within a few years. The positioning of the J-8C has gradually changed from the core main force in the past few years to a model responsible for transition, as well as specific interception and reconnaissance missions. The planned equipment volume has also been reduced by about half from the initial 400-600 aircraft. However, he still wrote this sentence in It is self-evident whose aggression we should oppose and in what context we should oppose it. When that exercise was organized, there were even many troops flying the first-generation J-6 fighter jets. The one who entered the airspace surrounding the exercise to provoke was the F14. Old General Zhang still remembers the almost farewell look in an aviation regiment commander''s eyes when he assured him before taking off that "the invading enemy will be intercepted outside our airspace." ?For this reason, after the J-8C completed production and finalization, he made special arrangements to re-equip that unit. It is a pity that because they are located on the southeastern front line, they cannot be out of combat readiness for a long time and lost the opportunity to come to this military parade. If I had another chance Lao Zhangs eyes moved slightly, and he began to simulate in his brain, if the exercise was carried out now instead of three years ago, would the situation be different... There are many people who are also thinking about this matter. The officers on the viewing platform, the military fans in front of the TV, the pilots in the airplane cockpit... Everyone is holding their breath. This anger has been holding in for several years. and. Coincidentally, it is since 1996 that China seems to be on a fast track. Its not that development was not fast enough before. But in recent years, it has been a bit unusually fast. As long as you pay a little attention to relevant news, it seems that you can often hear some good news that you couldn''t even think of in the past. So much so that in the past few years When I saw the J-8C for the first time at the Xiangzhou Air Show. When the bat hunting operation is successful. At the completion of the embankment operation. When learning that B2 was shot down. At a time when NATOs Operation Allied Force ended in failure ?Although most people only know one or a few of them. But everyone has had the thought Maybe its time to breathe a sigh of relief? ?However, when the short-term joy has passed, the shadow of the powerful enemy on the other side of the ocean still lingers in the heart, telling everyone- No, its not the time yet. For Xi Boyang, who had been waiting for a long time, his expectations for this military parade were already satisfied when he saw these 12 aircraft. ?As a military fan, even a senior military fan, the information he can obtain is pitiful compared to an insider. Therefore, what he has been paying attention to is how many J-8Cs have been in service Just as military fans more than twenty years later are keen to estimate the number of J-20s in service. After hearing the commentators announcement, he quickly opened the notebook next to him: A certain aviation division...that should be the 1st Division... Two regiments, one more than I previously estimated. If calculated this way, the navy and air force combined should have at least 6 fighter regiments that have been re-equipped..." "Then...isn''t that more than 140?" The person next to him shook his hand and dropped the beer can he had just picked up on the table. You cant say that either. Xi Bo didnt even raise his head: The start of the equipment change does not mean that the equipment change is completed, but in any case, it has only taken three years, which shows that the production speed of the J-8C is very fast..." Just now it was said on TV that it will be the main aircraft model for our countrys future anti-aggression operations. Doesnt that mean that the J-10 and J-11 are not going well? The other persons face looked unhappy. Obviously Mr. Zhang didnt expect that the sentence he added could still make people think like this. The J-10 has only made its first flight two years ago, and the progress cannot be that fast. We bought the Su-27, and the domestically produced models also have imported parts. Obviously, we cannot build too many..." ?Xi Boyang vowed: So, there is really no problem in saying that it will be the main model of our army in the next six or seven years. "Besides, even though the J-8C is a second-generation aircraft, military reports have shown footage of it launching the Thunderbolt 11 before. As long as the fight is not within visual range, homeland defense operations do not require much range and rely on high-altitude and high-speed capabilities. , it may not be possible to compete with third-generation machines..." After explaining this, he raised his head and looked at the TV again. At this time, the next air formation has appeared on the screen. . What is flying over Tiananmen Square is the Peoples Air Forces new long-range fighter echelon. This aircraft is the representative work of the worlds third-generation long-range heavy fighter ?Although the commentator did not mention the specific model, everyone sitting here can naturally recognize it. They are 12 Su-27SKs. ?Although Xi Boyang said that just now, when he saw Su 27 appear, the expectation and envy in his eyes could not be deceived: Sigh... I estimate that in another 10 years, during the next military parade, we will be able to see domestically produced third-generation aircraft... Obviously, this estimate is still a bit disappointing to a few people nearby: Ten years... is too long...how long will we be suppressed by the Americans... It doesnt take long to say that it wont be long... ?Xi Boyang took a sip of beer and began to show his optimism: We are all in our twenties, and the oldest brother, Yang, is only in his early thirties. Next, it is our time to shine... I guess we will definitely see that day before we retire. Dont you think its cool to experience this process from weak to strong with the country? He wanted to say something more, but the pleasant voice of the female commentator sounded again, drawing other people''s attention back to the TV: The next thing to be inspected is the domestic third-generation fighter formation. It is composed of two different types of fighters independently developed and produced by my country. It is the core and typical example of the new combat power of the Peoples Air Force. Among them, the heavy fighter..." This paragraph of commentary is particularly long. ?Of course, this is also due to the excellent low-speed performance of the two aircrafts, which gave the commentator a relatively longer time to read the manuscript. But Xi Boyang couldn''t listen to the rest of it. Because all his attention has been focused on vision. The whole world seemed to be quiet to him Five planes appear in the shot in a wedge formation. The front one and the two outermost ones are still the Su-27s he is familiar with. ?Of course, since it is a domestic model, it should be called J-11. ?This is not surprising. but! Two frames sandwiched in the middle Ventral air intake, canard layout, wing body fusion... J-10, its J-10! ?Xi Boyang jumped up excitedly and even knocked his chair over to the ground. Although he made a judgment less than a minute ago, saying that the progress of the J-10 "cannot be that fast." ??But at this moment, he didn''t even care about the pain in his face. He rushed in front of the TV at lightning speed, trying to see as many details as possible. ?It''s a pity that the resolution of the TV broadcast signal at this time is really average. Even if you get up close, you can only see an outline. "ah-" He slapped his forehead in annoyance: I really want to go there At the military parade where Xi Boyang couldn''t get it, Zhou Ruifu felt that his breathing had stopped. Even before the first flight of this model, the intelligence department had already speculated on the rough design plan. During the test flight, many insiders were sent to squat in the grass around Factory 132 to take secret photos. However, it is still an extremely rare opportunity to observe China''s aircraft that have not yet officially entered service at a (relatively) close distance during the military parade. ?Zhou Ruifu subconsciously raised the camera and adjusted the lens focus to the maximum. Then he realized that he had just unloaded the film. ??Zhou Ruifu almost wanted to slap himself, but just regretting it was obviously of no use, so he had no choice but to shout loudly at Bai Lidui: Quick, take a photo, take a photo! ?At the same time, Chang Haonan also raised his head and watched the five planes gradually approaching and then moving away. He finally felt what Zhu Yusheng felt half an hour ago. The No. 01 aircraft of the J-11AS, the two J-11A turbofan demonstrator aircraft and the No. 01 and 03 prototypes of the original J-10 plan. ?Each one was so familiar to him that he couldnt be more familiar with it. ?Especially the two outermost aircraft are equipped with four new turbofan 10 engines that he has devoted a lot of effort to. ?Perhaps 99% of the people present cant tell the difference. ?Even most people will think that it is the same Su-27SK as the previous formation. But under the similar appearance, there is a completely different interior hidden... For Chang Haonan, it was like sending his child to the military parade. By turning his head, he caught sight of the Tiananmen Gate Tower out of the corner of his eye. It seems that the chief spent a particularly long time waving in the air this time... (End of this chapter) Chapter 769 Different tail nozzle Chapter 769 A different tail nozzle In fact, the commentator just described this air formation as a "domestic new generation fighter jet." Perhaps most of those who can be invited to watch the ceremony do not understand the air force, let alone aviation. But you must be able to understand the situation clearly. Be clearer about the significance of national defense modernization. ??Despite this timeline, the Balkan crisis in the first half of the year was properly resolved in a dramatic way and did not cause much turmoil in China. Even so, there are not just one or two things that people will remember in the entire 1990s. Especially during the period at the beginning of 1996, although the public reports in the news were about the exercises being conducted in the southeast, and they were not very straightforward, everyone basically knew what happened and why the exercises were conducted. . ?Its only been less than four years, so its not easy to forget. The scale of this military parade was specially increased. To a certain extent, it was actually a response to what happened that year. There is a sense of dj vu as an exhibition of the results of four years of efforts in military construction. Even if you cant understand it, you can still feel a sense of confidence from it combined with the majestic military music and the sonorous and powerful voice of the narrator. Compared to the exercise that year, it was more restrained. but more powerful. For those who know the industry but dont have much access to inside information (referred to as stinking military fans), todays wave can already be called a gluttonous feast. In the media area further forward than the viewing platform, a young reporter with a staff nameplate was holding a camera and wanted to put his entire face into the viewfinder. Xiao Qin, Xiao Qin? Behind him, a slightly older middle-aged reporter looked at the next three-machine formation flying over from a distance, and took a picture of his companion who still insisted on pointing the camera above his head: The next formation is coming, stop taking pictures of the ones in front! ??If Chang Haonan was nearby at this time, he might still remember that these two people were the media duo he met at the first Xiangzhou Air Show. Three years later, Qin Chengbang, who was just an intern at the time, has long since become a full-time employee. Liu Jianshe, the senior who led him, also took off because of his ability to seize the opportunity. He was promoted by the editor-in-chief to specialize in international situations and military affairs. He became one of several deputy editors in the newspaper. However, this wave of promotions is hard for Liu Jianshe to explain. ?His "accurate prediction" of the emergence of the J-8C back then was a complete failure of a blind cat and a dead mouse. In fact, he was a complete layman in this regard. So much so that after being promoted, I couldnt write a single article for half a month. Fortunately, Liu Jianshe was quite self-aware. After realizing that something was wrong, he quickly transferred Qin Chengbang to a formal post and made him his subordinate. ??As a result, this section really made him top-notch, and he even published an additional bi-monthly magazine in the form of a picture album. Although the price is not low, the circulation has still hit new highs repeatedly. ??Even Qin Chengbang was promoted to the position of deputy editor at the beginning of the year and gradually turned to behind-the-scenes work. ?? Now it is time to catch up with important events such as the 50th anniversary of the National Day, otherwise the two "senior" figures would rarely appear in person. Hey, okay, okay ??Qin Chengbang, known as Xiao Qin, was reluctant to change the camera Those are J-10s, or two. ? Qin Chengbang, who usually surfs the Internet intensively, has been paying attention to this model since its first flight the year before last. A third-generation fighter jet completely independently designed and developed by China. It can be said that every move affects the hearts of countless people. But in the past, if you wanted to take photos, you had to take great risks and go to the 132 factory to work as a gangster. And its also a matter of luck. After all, test flights are not conducted every day. ? Qin Chengbang has always wanted to publish a column about the J-10, and he has even written about the content, comprehensively analyzing and estimating the design features and performance levels of this model. The final conclusion is that it is fully comparable to the F16, with only slight shortcomings in multi-purpose performance. It is speculated that it may enter military service before 2005 and eventually become one of the main models of the Chinese Air Force. It is conceivable that this article will be a big seller. Just because I was not sure whether the policy would allow it and because I didnt have very good photos, I was never able to publish it. ?However, this time, the J-10 was directly and openly displayed in front of people all over the world, and there were obviously no policy concerns. As for the photos, he had already taken quite a few just now. ?Its a pity that the formation of five aircraft is too dense, and it is really impossible to shoot a single aircraft alone. ??? However, just at the moment Qin Chengbang''s eyes were about to leave the viewfinder. Five fighter jets have their tails exposed just in front of the camera. Wait a minute, wait a minute Brother Liutheres something wrong with the two planes ahead Qin Chengbang suddenly stopped raising his head. ??The air formation is currently flying at low altitude and low speed, and the engine thrust is very low, so there is no dazzling tail flame to interfere with the line of sight. Hence, he could clearly see under the magnification of a high-power lens that the engines of the last two J-11s were completely different from the first three aircraft. ?In addition to the shiny silver color, the bigger difference is that there is no AL31Fs iconic convergence adjustment tab. appears to be fixed. ?In addition, the color displayed inside the spout is also slightly different. After discovering this, Qin Chengbang''s whole body trembled with excitement. Originally, he had no interest in the three J-11s. The introduction of the Project 11 production line and the domestic production of Su-27 is not a secret among Qin Chengbangs friends and readers. Although heavy fighter aircraft have stronger overall performance and improvement potential, they are still producing other people''s products anyway. From a news perspective, it is certainly not as topical as the J-10. But now, the situation seems to be different... The J-11, or at least the latter two J-11s, does not seem to be a simple copy of the Su-27SK. Is it not the Su-27SK that is being produced locally, but a new model? Qin Chengbang''s brain was running rapidly. But soon, he rejected his idea. ?? Russia did make its first flight of an improved aircraft called the Su-27SM at the beginning of the year, using a brand-new airframe and avionics equipment. ? He ??even wrote a special article in the April issue of the magazine for analysis, believing that it may be a signal that the Su-27 will shift from pure air superiority to multi-purpose. ??But the engine of the Su-27SM is still the AL31F series, and there is no significant change in appearance compared to the old model. In fact, Qin Chengbang did not remember any Russian-made engine that used a similar tail nozzle. Instead, it is the M53 engine on the Mirage 2000, which has similar characteristics. But the size obviously doesnt match. ?Two engines with a thrust of less than 9 tons obviously cannot push an aircraft of the size of the J-11. so After eliminating all the wrong answers, there is only one truth left These two aircraft are likely to be equipped with a new type of domestic engine that has never appeared in the past. Being able to fly an aircraft equipped with a domestic engine on a military parade undoubtedly shows that the performance and stability of this model have at least reached a usable level... ?While thinking about it, Qin Chengbang was so stunned at the military parade that he even forgot that there were several formations behind him that needed to be photographed. Alas...you... Seeing that Qin Chengbang didn''t listen to his words at all, Liu Jianshe looked worried: "This is the National Day military parade! What problems can there be with the plane? If there is a problem, it is not our turn to see it..." ??The only set of professional equipment was in the hands of Qin Chengbang. The latter did not dare to grab it, so he had to raise the point-and-shoot camera hanging on his wrist and take a few simple photos first. Normally, their picture album will be released in October at the end of September. This year, it was postponed for half a month just to publish a special issue for the National Day military parade. If the content is missing in the middle, it will become a laughing stock in the industry. Although the imaging effect of the point-and-shoot camera is average, it can be dealt with after zooming in. ?At this time, Qin Chengbang had also come to his senses, turned the camera again, and took two more photos of the formation behind him. It''s just that the angle is slightly wrong. Fortunately, this is a support aircraft formation composed of three special aircraft of the Y-8 platform. The Y-8X and the Y-8J are nothing new to those who have been paying attention to air force equipment for a long time. Just take a look, Brother Liu. ??Taking advantage of the few seconds between the two formations, Qin Chengbang raised his head and rubbed his eyes that were a little sore from being open for a long time: When I go back this time, I promise to write a hit article, no less than the one you wrote before the Xiangzhou Air Show! When he said this, he had even conceived the title of the new article in his mind: Cure Heart DiseaseA New Generation of Domestic Power to Lift a New Generation of Domestic Fighters (End of this chapter) Chapter 770 Carry on the past and open up the future Chapter 770 Carrying on the past and opening up the future On the other side of the viewing platform, a little boy was holding a telescope and looking at the sky. ?However, because the interpupillary distance is too small and the tip is not stable, it is really difficult to see anything clearly. Might as well use the naked eye. Grandpa, are these the planes you flew back then? He put down the telescope and asked. ?However, this time, there was no response. After turning around, he realized that there was another man in military uniform beside his grandfather. Sir, sir, have you ever flown a plane like this before? ??The old man looked up at the formation above his head and asked the man next to him. Although he is very old, as a pilot, his eyesight is almost as good as when he was young. Yes, I flew there the year before last... Old General Lin nodded: "I''m telling you Lao Wang, it feels so comfortable. If nothing else, the plane will react with just a slight movement of the stick in your hand. It''s not like when we first got on the plane, we held the stick in both hands. Only then can we break it apart..." General Lin is the first generation of Chinese pilots to fly the P51 at the founding ceremony of the People''s Republic of China. When he first learned to fly, he used the 99 Higher Education School of the old Northeast Aviation School. There was no flight control, and the steel wire was directly connected to the rudder surface from the cockpit, all relying on one hand. ?Even the seats on some airplanes are broken, and student pilots can only use ropes to tie themselves to them and fix them to them. As for skydiving What skydiving? ??There are only a few planes in the entire army. Are you telling me to skydive? ?If I can fly back, I will fly back. If I cant, I dont have to come back... The person called Lao Wang next to him is Wang Min, the chief of staff of General Lin when he was the aviation division commander. He once flew a J-5 and damaged an F86 fighter jet. However, he later switched careers to work in the civil aviation system due to physical reasons. Tsk tsk Wang Min shook his head: You are still in good health. You can still fly a fighter jet at the age of seventy But speaking of it, when I returned to my old army two years ago, I still saw the J-6 I flew over back then still parked on the tarmac... They were surrounded by retired senior cadres and at most children under ten years old, so they could have a more open conversation. Changed, everything has been changed. Old General Lin replied with a smile: Have you seen the high-altitude and high-speed fighter echelon that just passed by? I changed to that model..." When two veteran cadres got together, they naturally talked about old things from the past. It wasn''t until Wang Min''s grandson called him "grandpa" several times that their attention was diverted. This time, it was Old General Lin who answered directly: If your grandfather and I had these airplanes back then, we would probably be able to go to Hokkaido and take a look at them While the two old men and the young one were chatting and laughing, the air formation formation gradually came to an end. Six training aircraft painted in gray from the aviation school appeared on the scene. These planes seem to be the same type as the planes used by the original performance team? ?Wang Min took the telescope in his little grandson''s hand and glanced at the sky. As an old comrade from the founding days of the Air Force, he naturally understands the importance of cultivating pilot talents. Yes, the new fighter-training aircraft that was only equipped to the army last year can simulate the control characteristics of third-generation fighter jets. Because of its good flight performance, the demonstration team was the first to purchase a batch. Mr. Lin didnt bring any equipment, so he had to cover the sun with his hands and look up. Hearing this answer, Wang Min nodded silently at first, and then looked at the other party half-jokingly: The models of the first formation and the last formation are the same Mr. Lin was stunned at first, but he immediately realized what Wang Min meant At the Founding Ceremony, because the number of aircraft was too small, there were three formations with a total of 9 P51 aircraft. After completing the review, they circled to the end and flew again, making the 17 aircraft look like 26. ? Mr. Lin himself was one of the nine pilots. ?Of course, although the current Chinese Air Force is still far behind the world''s top air forces, it certainly no longer needs to use this kind of blindness. ??Now that this matter is mentioned again, it is just a joke between two old guys. ? Mr. Lin raised his hand and pointed at Wang Min in front of him, but said nothing. The two of them showed a knowing smile at the same time. At the same time, on the east viewing platform. Xiaonan Zhou Li had deliberately behaved very calmly and calmly since the night before. As a result, the first voice broke at this time. Obviously, it was all just an act before. I am happier than Chang Yuanchao because I feel uneasy. ?But at this time, she couldn''t care about it anymore. She quickly cleared her throat and grabbed Chang Haonan next to her: Xiao Nan, is this the formation? Chang Haonan nodded: "Yes, that''s it. Jia Yao is on aircraft No. 6, the aircraft at the rear of the formation." Hearing this, Chang Yuanchao quickly took out a telescope from a somewhat tattered cowhide box. ?That was a trophy from when he was a scout. It was made from East Germany and was of very good quality.?????"Hurry and show me too." ?Zhou Li also stopped pretending at all. In fact, even with a telescope, it is impossible to see clearly what the pilot in the cockpit looks like from the ground. Not to mention the flight helmet and mask. ?However, Chang Yuanchao still took it with him. After all, the daughter was being inspected in a plane designed by her son, while the parents watched from the viewing platform below. ?This kind of happiness may not be felt by many people in the country. Especially, how can people not have the mentality to show off. Every time I catch a fish weighing 10 kilograms, I would like to mention it to everyone, let alone my son or daughter who has such great potential. However, because of the special nature of Chang Haonan and Chang Jiayao''s work, they can only keep a low profile and rarely have the opportunity to mention the situation of their children to others. Even if I am asked sometimes, they just say that my son is a small leader in a state-owned enterprise in the capital, and my daughter has joined the army. There is no chance to show off at all Hold up. at the same time. ?In the front cockpit of the No. 6 aircraft of the training aircraft formation, Chang Jiayao was also looking at the crowd on the viewing platform below. When we met at the airport before, Chang Haonan said that their location was at the far west of the east viewing platform. ?However, there are really too many people on the viewing platform today. ?With such a rough location, it is impossible to find exactly who it is. So, Chang Jiayao raised her camera and took the opportunity to take a bird''s-eye view of the Tiananmen Gate Tower, leaving three photos of the entire east viewing platform. Whether we can find someone inside will be discussed later. Anyway, we need to keep a souvenir. Otherwise, this visit can hardly be called perfect. After the training aircraft formation, there are three consecutive groups of helicopters. ?Compared to the all-white Z-9A helicopter fleet in the previous generation, this time the variety is much richer. They are straight 9A, straight 9C and straight 9W However, including the training aircraft formation, not many people are paying attention to it. On the one hand, different models of Z-9 are very similar in appearance. Except for the French, few people know the amazing technical capabilities behind the latter two improved models. The training aircraft is similar to the model of the Bayi Aerobatic Team. Same, nothing new. ?On the other hand... Most people are still immersed in the shock brought by the domestic new generation fighter formation just now. On the front row of the viewing platform. Did you take a complete picture of the formation just now? ?Zhou Ruifu looked at the dozens of helicopters that were gradually disappearing, and asked Bai Lidong next to him. If he were asked to describe his current mood, it would be... ??I''m so stupid, really. I only knew that the Chinese were developing a third-generation fighter jet and would test it in Yanliang, but I didn''t know that there would also be something at the military parade... Although the media at the scene will certainly take a large number of photos, as a person responsible for intelligence tasks, it will appear very unprofessional if he directly uses media photos to submit a report. Fortunately, Bradbury was always very vigilant. He nodded and put away the camera: I took the photo, but the magnification was not large enough. I was worried that some details could not be seen clearly. It doesnt matter, as long as there are a few photos that can be used for domestic communication. ?Zhou Ruifu breathed a sigh of relief, shook his head and replied: "We have already done technical research on the new Chinese fighter jet. It is probably a pure air superiority model that is comparable to the late-model F16A. Although it is larger in size, it uses a delta wing design, so the bomb load is the same. The range is not very optimistic, and the air combat performance may not be weaker than the F16, but the multi-purpose potential is insufficient. As he spoke, he started to pack his things. There were mass celebrations after the military parade, but that was not what interested him. Beijing is still a bit hot in October. Now Zhou Ruifu just wants to end it quickly, go back to the air-conditioned room to write a report, and then wait until evening to attend the dinner party. However, what surprises me is the progress of their research and development of this model. Zhou Ruifu took out a pair of sunglasses from his bag and put them on: This model only flew for the first time two years ago. We estimate that it will not enter mass production until 2004-2005. However, since they dare to let the prototype go on military parade, it shows that the degree of completion is already very high. I am afraid it will be equipped in another two or three years. So...its a big threat to us? ??Bride asked. He obviously doesnt know as much about the Air Force as Zhou Ruifu, a former pilot. Thats not necessarily the case The latters answer was non-committal: "The scale of the Chinese third-generation fighter jets cannot grow explosively in a short period of time. You know that in many cases, quantity itself is a kind of quality. What''s more, although they are both third-generation fighter jets, our F15C and F16C are Better performance than those earlier models Even though he said this, Zhou Ruifu''s expression was still a little serious. After a slight pause, he changed the subject again: However, in any case, this is indeed the first time since the 1950s that the generation gap has been smoothed out by the Chinese Air Force. So, the domestic development of a new generation of fighter jets must indeed be accelerated..." (End of this chapter) Chapter 766769 reset Chapter?766-769 Reset Part of the content of Chapters 766-769 has been changed, and about 7,000 words have been added. Because it is the number of words added later, there is no need to pay extra. The first few chapters I wrote could not be posted at all. Later, I directly deleted all the parts that the writer''s assistant judged to be sensitive content before posting them. But I went back and read it again today, and found that such deletions would make the entire plot very incoherent, so I went back to the original version, deleted a number of sensitive words one by one, and added back some of the content. However, the content related to the Second Artillery has been stuck. Considering that the protagonist has not participated in the missile project yet, this part has not been added.?(End of this chapter) Chapter 771 The aftermath (6K Chapter 771 The aftermath (Chapter 6K) ??In a small auditorium of the Beijing University of Aeronautics and Astronautics, a large group of students were gathering to watch the military parade. ?There is no online live broadcast these days, and there is no TV signal in the dormitory. If you want to watch the live broadcast, you can only watch it in a few specific places in the school. The age of early 20s is the stage when they are most energetic and concerned about national affairs, and the special nature of Beijing Airlines has increased the proportion of this group of people. Hence, even before the military parade started, the place was already packed with people. So that those who came after him could only sit on the ground. ?In the end, it was Tang Lintian who came forward personally and asked each dormitory building to open the activity rooms equipped with TVs, which stopped the surging crowd. ??And the content of this live broadcast of the military parade did not live up to the early morning they woke up specially - ??For students who have not yet entered the aviation industry system and have not been exposed to much confidential information, except for the J-7E with a formation in the middle, which is really lackluster, the other models are still quite surprising. ?Its just that the auditorium is a public area after all and is really not suitable for making loud noises, and no one wants to miss a word of the commentator. So, at the beginning, everyone was still able to suppress their emotions. ??Only some whispering sounds could be heard from time to time. I said, Brother Zhou. Li Yan looked at the double-delta-wing J-7 flying past on the TV, turned around, and whispered to Zhou Shuwan sitting next to him: "I remember Brother Nan...no...when Professor Chang went to school with us, didn''t he design an improved version of the J-7 with chin-intake in the class? Why wasn''t it equipped?" They were both classmates of Chang Haonan when he was an undergraduate student, but now the latter has graduated with a doctorate and became a professor, while they are still in their third year of graduate school and are preparing their master''s thesis. ?Zhou Shuwan frowned slightly and glanced at Li Yan next to him: Your dad is in the Air Force, are you asking me about this? ?Even so, he continued to answer: Besides, I remember Professor Chang said at the time that that model is still relatively backward, so we will equip it better. It seems that he did say that, but I thought he was just showing off? ?Li Yan scratched his head. ?His father did once serve in the Air Force, but he changed his career two years ago. Zhou Shuwan was silent for a moment: Actually...I felt the same way at the time. Then the conversation changed: But considering that he has really become our professor now, so when I think about it now... he may have planned it all at that time. You see so many J-8Cs that just flew over, they have obviously equipped the troops in large quantities. The chat between the two people obviously disturbed the surrounding people. Soon, a person in front of them turned back angrily and motioned for them to be silent. Su 27 is here, look! The original silence returned to the auditorium again, with only the rhythmic voices of the two commentators remaining. Even students from the Aeronautical and Astronautical University have seen very few Su-27s with their own eyes. I saw a lot in the news in 1996, but the signal quality at that time was worse, and they were cut into scattered scattered pictures (in order to pieces all the number of lenses), and they must not be compared with the parade. ?Other than that, there are a few fixed pictures in military magazines. ?Hence, everyone couldnt wait to hold their breath and didnt want to miss any shot. After all, they dont have the conditions to record the scene and watch it slowly, nor do they have a search engine that can find the picture by typing a few words. Once you miss it, you dont know when you will see it again. But Zhou Shuwan is an exception. ?His mentor is a well-known domestic aviation safety equipment expert. In Project 11, he participated in the technical absorption of the K36D ejection seat. Of course, as a junior master, he would not have the opportunity to participate directly. But at least, he has seen a lot of photos and information. So, among the crowd of spectators, only Zhou Shuwan seemed very calm. ??Even specially opened the thermos cup and took a drink of water, and mentally pointed out the strange classmates. ?But before he could take the cup away from his face, he heard a roar from the man who had just turned around to condemn them. What the fuck? ?He was just about to reprimand him in the same way, but then, the sound of one after another rang out in the auditorium. The contents are basically the same An exclamation without any practical meaning. ?Zhou Shuwan put down the cup and focused his attention on the TV screen again. Then, his pupils suddenly shrank. Fortunately, the teacher on the podium reacted quickly and quickly raised his hand and lowered it quickly: Quiet, quiet! Listen to what the TV says! The time from the first exclamation to this moment is long, but only a few seconds have passed in total. ?Hence, they were lucky enough not to miss the narrator''s voice. The next thing to be inspected is the domestic third-generation fighter jet formation ?At that moment, Zhou Shuwans mind was blank. He didn''t yell like others. But I dont know what my mood is. Calm? Absolutely not. ?Although he still looked indifferent on the surface, his drum-like heartbeat and rapid breathing betrayed his heart. surprise? ) But not quite. He has long heard about Project 10, which is developing a third-generation aircraft by itself, and also knows that the prototype flew for the first time two years ago. ?Now that I see my real body appearing in public, I am certainly happy, but it does not seem to be the main tone of my mood at this moment. If I have to describe it, it can only be... Its hard to describe in one word, and its full of mixed feelings. As a member of the generation born in the 1970s, Zhou Shuwan has always had a contradictory mentality. He knows that China''s weapons and equipment are generally more than one generation behind the world''s mainstream. ??Knowing that China''s armored forces are even worse than the monkey version of the T72 that was killed indiscriminately during Operation Desert Storm. I know that by 1996, there were still few fighter jets capable of firing medium-range bombs. ??Know that Sovremenny-class destroyers are not "aircraft carrier killers." ?These are the things that people like Huang Zhiqiang often talk about and ridicule. But, they are all true. However, he also knows that our army has always been good at fighting when the enemy is strong and we are weak, and when the enemy is numerous and we are few. We also know that from Chishui River to Sansuoli, what we are best at is making the impossible possible. He has no reason to doubt that in the new era, the people''s army can still continue to create miracles. Whether this is despair or hope, even Zhou Shuwan himself has never been able to tell clearly. ?Hence, he almost never argued with those people, or even thought about the issue in detail. Because he is afraid. Afraid of being persuaded. It was not until Zhang Man went abroad that he gradually began to think and discuss with some colleagues. About how to find hope in despair. In fact, to put it harshly, its YY. But it is always a slightly more reliable YY. So, the conclusion is nothing more than Just like countless times in the past, huge sacrifices were made in exchange for a tragic victory. ?Of course, there may be many ideas on how to win. But no one has ever thought that we can rely on technology and equipment, even those of the same generation as our opponents. Suddenly, Zhou Shuwan seemed to have returned to three years ago, when he had just teamed up with Chang Haonan to do coursework. After finalizing the seemingly crazy plan, several people once went out for a roast duck. That night, they talked about fighter jets and the Air Force. As usual, we talked about every subtle improvement of the J-8II and the mass-produced F22 that is about to fly for the first time. At that time, Chang Haonan once said to him: Dont worry, there will be something, it will be there. At that time, he just regarded it as a casual comment. But looking back now, maybe thats not the case. The J-10 did appear 20 years later than the F16. But in the end, it appeared before the F22 entered service. There is no generation gap. I really have it all ??When Zhou Shuwan came to his senses, only the last helicopter formation rumbling away from Chang''an Street was left on the TV screen. The military parade is over. ??But the impact of the military parade is far from over. In the auditorium, the emotions that the students had just suppressed finally burst out. Just now...was that J-10 just now? Quite a number of people have heard of the existence of this model. Some people have even seen photos circulated on the Internet during the test flight. But that is not public information after all. ?Who can guarantee that it is true? In other words, who dares to believe it is true? You should know that the J-7E was only equipped with troops six years ago. The J-8C was only equipped with troops two years ago. But this time Public appearance at the military parade, and direct confirmation by the commentator... How can it be false? Someone on the other side of the auditorium quickly stood up and answered loudly: As I said on TV just now, if our country develops and produces by itself, what else can we do besides the J-10? And I see that there are still missiles hanging on them. Does that mean they have been equipped with troops? Other people speculated. Youve all gone to the military parade, so you should be serving, right? But I heard that the J-10 seemed to have made its first flight only the year before last year, and it was put into service within two years... Isnt this unreasonable? After all, everyone here is studying aviation. At this time, our minds are still relatively calm. "That...at least it''s fast. Otherwise, who would dare to bring an unreliable aircraft to the military parade?" "really" That makes sense. Obviously this statement is recognized by the vast majority of people. ? ? However, the discussion will not stop because of this... ? ? The model has been confirmed, and then there is the performance. I think that since the country has decided to make this model public, there will be more detailed reports on TV soon. ?This year, in order to satisfy the people''s growing interest in military and weapons and equipment, CCTV has launched a series of programs such as "Military World", and the ratings have been quite good. But soon, someone turned their attention to the teacher on the podium: Teacher, can you analyze it for us? As this voice howled out, the auditorium was quiet for a moment. Everyone reacted immediately When talking about airplanes at the Aeronautical and Astronautical University, arent there ready-made experts? Thats right, teacher, please tell me about it? ?The person in charge of showing the TV on the stage was a young lecturer who had only been in the job for two years, and everyone was numb at this time. ?Although most of the people in the auditorium are undergraduates, there are also many masters and senior Ph.D.s. He may not be older than some PhD students who have completed their studies. I have never seen such a formation. Besides, he doesnt know anything. ?How can anyone guess the performance just by looking at the appearance, or even by watching it on TV? Fortunately at this moment, the door of the auditorium was suddenly pushed open: The plane on the military parade just flew over near our school, and someone took a photo! The whole room exploded in an instant. ? Feeling that the situation was a little out of control, the teacher quickly found an opportunity, took out the mobile phone he had just bought, and called Tang Lintian, asking the principal to find a way to control the students'' ignited passion... In fact, the shock caused by this military parade went far beyond the country. ?Subject to the limitations of rebroadcast technology, the live broadcast signals received by countries and regions outside China have considerable delays. ?Even most countries will not specifically broadcast live broadcasts at all. After all, even in today''s timeline, China in 1999 was still not a country that attracted much attention and topic for most foreigners. But for overseas Chinese, this meaning is completely different. ?Birmingham, UK. Zhang Man and his roommates were sitting in a bar owned by Chinese people. Together with a few local Chinese people, they were watching the footage broadcast by CCTV International Channel. Compared with the joyful national celebrations at home, here, even in this bar full of Chinese people, the atmosphere is much duller. ?The reason why most people gather here is more of a nostalgia for their hometown, or in other words, a sense of ceremony. Zhang Man was the only one who was very fascinated by what he saw. Even the hand holding the wine glass turned slightly white from exerting too much force. Two years ago, she graduated from Beijing Airlines and came to Birmingham to study for a PhD. At that time, neither Zhang Man nor her family thought about letting her go back. However, after more than two years of studying for her Ph.D., her ideas began to loosen As a smart person, she soon discovered that as a Chinese, it was impossible for her to get access to any core projects here. Although she had no worries about graduation, it might be difficult to find a truly relevant job in the UK. ??The way for most "predecessors" to stay here is to directly marry a foreigner. But Zhang Man is a rich and beautiful person at home. If this is what he wants, why go abroad? He can just find a rich husband at home and be done with it. Furthermore, there is discrimination. It may not even be intentional. But unintentional strange looks are sometimes even more difficult to accept. Zhang Man looked at the scene on TV and drank all the wine in the cup. She is still not interested in the military, and her current research is in a rather fringe field that has nothing to do with aviation, so she doesnt know much about the equipment that appeared in the military parade. What she misses even more is the mass celebrations that followed but no one paid much attention to in the country. Since I went abroad, I havent experienced such a lively scene for a long time. Perhaps...it would be good to go back after graduation? ?She thought so. Compared to Zhang Man who was just thinking wildly, there were others who were paying attention to more professional matters. ??Although the general public will not pay attention, researchers in related fields cannot miss this opportunity. Especially the Europeans who are already cooperating with China. Whether it is because interests are tied to cooperation with China, or simply out of a rational analysis of Chinas scientific research level. In short, at least some people have begun to try to look at this familiar but unfamiliar country from a rational perspective again. About an hour after the military parade ended. ?Charles Edelstein strode into the office of Serge Dassault, the second generation head of Dassault. ?Hand is still holding a document that has just been printed out. Mr. Dassault, I think you should take a look... ??Ed Steiner was only halfway through his words when he discovered that the TV set not far away was actually playing the content he wanted the other party to watchChinas National Day celebrations. Whats the matter, Charlie? ?Dassault turned his head and looked at his old buddy with some curiosity. Now that youre looking at it, its easy to say. The latter pointed to the TV screen. Are you talking about these performances? ? Dassaults gaze returned to the TV: It was boring at first, it was all... you know... unoriginal praise, but the later parts were exciting, especially the dance, which was very creative. ? Ed Steiner waved his hand helplessly: "Of course not...I mean the military parade in front." ?He said and put the folder in his hand on the desk: The Chinese exhibited two new types of fighter jets. ?Dassault glanced down but did not open the page: I saw it. One is the Su-27 produced by introducing Russian technology, and the other is a light fighter that is somewhat similar to...well...at least similar in size to the F16. Of course, it should be larger than the Mirage 2000." Speaking of this matter, he was quite irritable. ?Originally, his father, Marcel Dassault, had already presided over the development of the heavy-duty Mirage 4000 fighter jet, but the French Air Force was not interested in it. ?However, after the project was terminated, the Ministry of National Defense actually proposed to launch a research and development plan for a 9-ton fighter aircraft common to the navy and air force. It is also the later Rafale fighter jet. Originally, the research and development process was relatively smooth, and the mass-produced Rafale C was scheduled to enter service in 2001. But just at this critical moment, the Snecma Group, which was responsible for providing power, suddenly lost its chain. Because General Electric suddenly decided to withdraw the technical support it provided during the M88 development process, about 15% of the parts were unable to be supplied on time. The entire plan is now almost at a standstill. ?Looking at the next door, EF2000, which they withdrew from back then, is singing fast and furiously, and is about to catch up from behind. If we continue like this, we will lose to the United States (F15), Russia (Su-27), Russia to the United Kingdom (EF2000), and then China (J-10). In the end we will have nothing to lose. ? General Electrics wave of salary cuts is not a slap in the French Air Forces butt, but a slap in the face of Dassault. But trouble comes to an end, and there is really nothing we can do. ?Having already said all the good things, the other party cant be embarrassed and buy the British EJ200 when he is so stubborn, right? ?Does that make you worthy of being a Frenchman? We can only wait and see when Snecma can solve the problem alone. ?However, Ed Steiner took the initiative to open the document. Inside is a color printed picture. It is a three-machine formation. Taken from behind. Obviously cropped and enlarged, of course. Im not talking about the plane itself. He pulled up a stool, worked on it by himself, and said to Dassault: Our reporter at the front took a photo from a good angle. Ed Steiner said as he stretched out **** and tapped lightly on the engines of two of the planes. "According to our analysis, the aircraft in the front should be a basic Su-27 assembled by China using Russian-made components, while the aircraft in the back, and of course the other one that was intercepted, were produced by the Chinese themselves. Of course , maybe the electronic equipment has also undergone some improvements, but thats not important. It can be seen that the engines of the two aircraft are completely different. ?? Serge Dassaults professional skills in the field of aircraft design may not be as good as his fathers, but to be able to maintain a huge family business like the Dassault Group, he is by no means a novice who is completely ignorant of technology. In fact, he graduated from the Ecole Suprieure de lAronautique et Srieure in France and has participated in the design of aircraft ranging from the Super Mystique to the Mirage 4000. Hence, when Ed Steiner pointed out those two places, he had already seen some clues. ? Dassault picked up the remote control and turned off the TV: This model outside uses an ejection nozzle. ?At this time, he had vaguely understood the key points of Ed Steiner''s words. Snecma Group is almost the only one in the world that is keen on using ejection nozzles on fighter jet engines to reduce engine weight at the expense of some low-altitude performance. But it seems a bit far-fetched. After all, its just a spout design. What can the same mean? Thats right. ? Ed Steiner replied: Actually, its hard for me to explain why I have this idea, but anyway, I just contacted Snecma Group and asked them if they have any relevant information about Chinas third-generation turbofan engine. "The answer they gave me was that about 10 years ago, the Chinese started a third-generation turbofan engine project based on the F110 engine, using the CFM56 as the core engine. Initially, they even tried to seek help from Snecma. Some technical help was provided, but soon, as the relationship between us and China turned cold, there was no follow-up news. So you think Dassault frowned slightly: It took the Chinese people ten years to install a high-thrust turbofan engine on a mass-produced aircraft? ?Although he didn''t say it directly, his expression clearly showed that he didn''t believe it - CFM56 is said to be jointly developed by the United States and France. In this way, Snecma has spent almost 20 years developing a mid-range model based on it. In the end, many parts still need to be produced in the United States. On the other hand, the Chinese people have received very few CFM56 data. How can they spend 10 years from scratch to create a big promotion to the standard F110? How about playing? Not that I think Ed Steiner shook his head: I also think this is unrealistic, but these four engines are clearly different from any known model in the world. "If it is made in Russia, there is no need to specifically replace the tail nozzle. And according to the news from Sagem, almost all the engines exported by Russia to China in recent years are high-bypass-ratio models, such as PS90A and D436T. Clear and logical. Dassault was speechless. So...you mean, maybe the Chinese have the key technology to mass-produce CFM56? At least there is a possibility. ?Ed Steiner replied. In fact, his entire analysis process was inconsistent. But because there were so many errors, they canceled each other out in the end, and we got a conclusion that was very close to the correct one... (End of this chapter) Chapter 772 Celebration dinner Chapter 772 Celebration Dinner An important event like half a century after the founding of the People''s Republic of China coincides with the eve of the millennium. Naturally, it cannot be ended with a simple military parade. ?The mass celebration does not end immediately after the one-hour official session, but there is still a part where you can actually play. ?Especially after the lifting of martial law, people who were originally locked up at home, or who were previously responsible for live performances and were unable to escape, can also participate. ? Many teams have celebrity representatives, such as well-known athletes, actors, artists, etc. For ordinary people in this era where entertainment methods are relatively scarce, there is no Internet, and there is no short video live broadcast, these people are still relatively mysterious. It is a very rare opportunity to meet a real person. ??Definitely not let it go casually. However, this is the real "Caile de Coral". ?Most people who can go to the viewing platform each have more important things to do... Xiao Qin, what happened to the one you just said would definitely be a hit? ?In a media interview car, Liu Jianshe put the equipment bag in the trunk, then got into the driver''s seat. While starting the car, he asked Qin Chengbang, who was playing with a laptop in the passenger seat next to him. Logically speaking, if the two of them, one deputy editor-in-chief and one deputy editor-in-chief, go out to do things, they must have another driver. However, every pass for the National Day ceremony, even if it cannot enter the infield, is difficult to obtain, so you have to do it yourself. On. Do you still remember the time we went to the Xiangzhou Air Show? Qin Chengbang stared at the computer screen, typing rapidly on the keyboard with both hands, obviously starting to write: The reason why the news of that time exploded was not only because you predicted in advance that there would be new aircraft models at the air show, but also the important point was that it directly and publicly demonstrated the turbojet 14 engine that the public had been speculating about, and through flight The performance proved that the performance parameters on the display board are reliable, and it is a huge encouragement to the vast majority of people in the country who are concerned about aviation, or at least interested in aviation. In this year, most people can only obtain information through radio and television and traditional print media, and these two channels are not very optimistic in terms of information volume and timeliness. ?Things like "Which **** aircraft uses **** engines?" will be debated by netizens of different factions for many years 20 years later, let alone the 1990s. Especially for the J-8, from the Turbojet 7 to the Turbojet 14, it has changed into three large models and seven or eight sub-models along the way. In addition, many media have used traditional entertainment with random pictures. It is actually impossible for outsiders to compete for one. Come two or three. For most of the 1990s, the J-8 was one of the few things that Chinese military fans could pay attention to and discuss. There was no new Britannia that could replace it, and it was considered top-notch. So, at the air show that year, the official directly ended the mass production and service of the real-hammer turbojet 14, and its influence was absolutely full. "Um" Liu Jianshe has now given up on explaining that "I was completely guessing back then" and just nodded, indicating to the other party to continue. I just discovered that the two outermost aircraft in todays domestic new-generation fighter formation use new engines that I have never seen before...in fact, I have never heard of them. Qin Chengbang originally wanted to explain it in detail, but professional cameras these days all use film, and there is no way to directly tell what is being photographed before it is developed. This cant be considered an official confirmation, right? Liu Jianshe started the car, quickly put the reverse gear on and prepared to leave: I remember that time I specially displayed the engine and wrote a big sign on it. Of course we cant, but just because we cant, we have room to play. ??Qin Chengbang is obviously much more proficient in business now. Combined with his understanding of the psychology of readers and a little professionalism, he deserves to have his magazine become popular: Ill finish writing the article about this engine before I get off work in the evening. When I get back, Ill ask the printing shop to work overtime. Its best to publish the analysis article in the newspaper tomorrow. Shouldnt the focus be on the magazine? For Liu Jianshe, newspaper space is actually no longer important. Most of his income is in special magazines. Im just warming up the magazine. Qin Chengbang''s thoughts are flowing like a fountain. With just a few seconds of speaking time, he has already typed almost half a page of content: "Our newspaper is in black and white, and the space is limited. We can only put one or two blurry photos. Nothing can be seen at all. When the analysis article is published tomorrow, I guarantee that everyone who is interested will want to read the follow-up , and then put an advertisement for our magazine at the end of the article... Hey, just be ready to print more, maybe you can issue another supplement..." Because their magazine is an album in nature, they use coated paper, which is not very common in this era, for high-definition printing. The price is as high as 20 yuan per copy, which is a level where you need to grit your teeth before buying it. Except for some enthusiasts, most people are Buy it on the fly, or buy it together with multiple people. So it is necessary to raise user expectations in advance ?This idea, even in the Internet era, is not considered backward, but Liu Jianshe was stunned when he heard it. ??But the latter has one good thing. Although he doesn''t know much about business, he basically won''t interfere in the work randomly and directly accepts Qin Chengbang''s ideas. ?However, while the car was queuing up at the exit of the parking lot, he still raised his head and glanced at Qin Chengbang''s computer screen. ??Discovered that an estimate of the performance of the new engine has been written. You said youve never heard of it before? Why did you write it in such detail? When talking about this topic, Qin Chengbang finally raised his head slightly and showed a smile: I really havent heard of it, but I can guess. You think, since the target of installation is the J-11, which is the domestically produced Su-27, a reasonable analysis shows that the engine performance should also be comparable to the AL31F. Lets speculate again. Since Project 11 has introduced the Su-27 production line, is it possible that the AL31F technology is also in the introduction project, but it has not been made public? "So, I reasonably speculate that this model should be developed on the basis of AL31F, which means that the performance should be better, close to the level of the improved AL31F..." At this time, Chang Haonan did not know that his turbofan 10 had been analyzed in Europe and Asia to find two completely different, but both very outrageous, technical sources. For him, the military parade is just the first activity on National Day. As usual, there will be some visiting activities in the afternoon, but fortunately, the Aerospace Power Group is a newborn that has only been established for three months, and there are no retired leaders, so this can be ignored. But he still had to attend the afternoon celebration dinner and the subsequent evening performance. ?Its just that the threshold for these two activities is much higher than watching a military parade. ?Those like Zhou Li and Chang Yuanchao will definitely not be able to participate. ?Its just that for the old couple, they would be satisfied if they could go to the capital to watch the military parade in person in their lifetime. The two of them didn''t even let Chang Haonan send them back. ?So the latter, together with many guests who came to Beijing from other places, were sent to the Great Hall to rest. After lunch, because Chang Haonan did not have the habit of taking a nap, he walked around the lounge to eat. But at this time, I suddenly heard a voice from behind. Mr. Chang? He turned around and saw a middle-aged man who was estimated to be in his fifties, but whose hair was already half white. The face was a bit familiar, but I couldnt remember where Id seen it before. He had no choice but to lower his head and glance at the identity tag hung by the other party. OhMr. Lin, long time no see ?Lin Qing, chief model engineer of the 701 Institute of China Shipbuilding Industry Group. The two had met once at the Xiangzhou Air Show in 1996. The latter was worrying about the selection of a new generation of domestic frigates at the time. He happened to see the turbojet 14 that Chang Haonan and the others brought to the exhibition, and hoped that the aviation industry would The system can develop a light marine gas turbine with a sufficiently high localization rate on its basis. That is the QC130 that Yan Zhongcheng later took the lead in taking charge of. ?However, because Chang Haonan was not involved in the aeroderivative fuel project, the two never met directly again after that. It has only been three years, but Lin Qing looks like she has aged ten years. It is obvious that she is under a lot of pressure from work. ?Chang Haonan turned around and shook hands with the other party. Today, you have taken out all your housekeeping stuff... As he spoke, he quickened his pace and walked next to Chang Haonan. What he is talking about is naturally about the domestically produced third-generation aircraft. ??The Army has a new main battle tank, the Air Force has a new fighter jet, and the Navy... ??The Navy has received a batch of new amphibious infantry fighting vehicles. We all have a bright future. Its not considered a housekeeping thing Chang Haonan smiled and shook his head: These are all old projects from two or three years ago. The real wealth cannot be thrown away casually..." ?This is really not what he said in Versailles. Because the improved J-11B and the new J-10, which can be said to be completely reborn, are progressing smoothly, intensive testing will begin soon. Actually, Chang Haonan is looking forward to it very much. ??This somewhat sudden public appearance of the J-10 will probably make everyone think that the Air Force will soon be equipped with this model, or even have already equipped it. Especially those foreign institutions that conduct open source intelligence analysis. Waiting for them to analyze the J-10 in its original form... It is estimated that the improved version will be unveiled soon. I dont know how explosive their mentality will be at that time. Lin Qing was speechless Do you think this is human language? ??In terms of naval equipment, the "new" warship is still the 052 that was commissioned in 1994... As a result, according to the aviation industry system, the project two or three years ago is already an old project? Be a human being! So I had to look at him from left to right: Speaking of which, Mr. Chang, I heard that you took over a big project from the Hudong Factory? ?This sudden change of topic made Chang Haonan stunned for a moment, and then he realized that the other person was talking about things at the Torch Group: Yes, Hudong Plant wants to cooperate with the French to build LNG ships, and we have been entrusted with some technical details to solve. Thats a coincidence. Lin Qing pretended to be surprised and said: You still remember the new frigate I told you about when we last met, right? ?Chang Haonan nodded. How could I have forgotten this? The famous 054. It is also the original 054 project that was abandoned due to technical and cost reasons in the previous generation. The kind that uses full combustion power and 3K95 vertical hair (Haikidoyle). After a little preparation, Lin Qingtu suddenly saw: "In June this year, the keel laying of the first ship has also started at the Hudong factory. I should be working at the factory in the second half of the year. If you go to Hudong anytime, you can also take the time to take a look. After all, the fuel used on it is The machine was developed by you. ?Chang Haonan stopped and turned his head to look at Lin Qing. He was originally going to say that he might not be personally responsible for LNG matters. ?But on second thought, even if I am not personally responsible, the cooperation between Torch Group and Hudong Factory is the first cooperation between an aviation power group and a shipbuilding industry group. Definitely still going. So he nodded. Besides, seeing the boat yourself is probably not the main purpose. Perhaps there is some cooperation to discuss. Actually, he was right. From the first time he saw Chang Haonan, Lin Qing was sure that this young man had extraordinary abilities. At that time, he even thought about whether to dig into the shipbuilding industry system when the other party graduated. His idea is also very simple - although Chang Haonan went to Beijing Airlines, no one has ever stipulated that students graduating from the Aeronautics and Astronautics University must engage in aviation. When the time comes, he will offer a higher salary, promise some other benefits, and get a It shouldn''t be difficult for a freshly graduated Ph.D. As it turns out, his unusual estimate was too conservative. In the first year of his Ph.D., he has already worked as a model chief engineer and the person in charge of a second-level state-owned enterprise next door. By the time they graduated, they had already become members of the leadership team of the Aerospace Power Group. How to dig this? I can only find a way to knock on the side to engage in project cooperation. (End of this chapter) Chapter 773 Meeting old friends again Chapter 773 Meeting an old friend again The National Day Dinner, in terms of organizational form, is actually very similar to the one when Chang Haonan received the National Science and Technology Award. ??It''s still the banquet hall on the second floor of the city hall, it''s still dining at separate tables for 10 people, and it''s still the same classic Huaiyang cuisine. Its just that the level and scale are much higher. The banquet hall, which can accommodate 5,000 people, was almost full. To Chang Haonans surprise, he was assigned to table No. 7 ??The table divisions at this dinner were probably based on different industries and identities. For example, certain tables were for academic representatives, certain tables were for the People''s Liberation Army, and certain tables were for student representatives. Some things that are not easy to separate, break them up and insert them. ?But the first seven tables are different. is the main table. ??Each table will be assigned a boss. In other words, there are only 63 positions in total. It can be said that it is quite difficult to get one among them. And at this table, he actually saw two acquaintances. Zheng Liangqun, who had just flown over Tiananmen Square in the morning, was quite expected, but the other one surprised Chang Haonan somewhat. Qin Wengui, Qin Gong? Two years ago, Chang Haonan received his first heavyweight honorthe Chinese Youth May 4th Medal. ?At that time, Qin Wengui was the one who received the award with him. Actually, the two of them had only met once in the past, and Chang Haonan''s impression of the other people was even somewhat vague. ?However, Qin Wengui''s iconic white hair is quite eye-catching even among the generally older people at the front tables. Relatively speaking, Chang Haonan has no particularly eye-catching characteristics. Except for being young. But to participate in an occasion like today, you must take care of yourself in a mature direction. So Qin Wengui didn''t suddenly raise his head until his name was called out. . He recognized Chang Haonan immediately: Uh... Chang Gong, hello, hello. ?? Qin Wengui''s face showed a bit of surprise at meeting an acquaintance, but when he spoke, there was no tone of voice, and he was not even coherent. Apparently there is some restraint. After all, although the big guys havent entered the scene yet, the current formation is definitely considered a big scene. At least it was bigger than when they went to receive the May Fourth Medal. Is Gong Qin still working on the oil front line? After not seeing each other for two years, Qin Wengui gave people the impression that he was a little more vicissitudes of life than the last time we met. ??If you were sitting in an office, Im afraid there wouldnt be such a big change. "yes." Qin Wengui nodded: "After I went back last time, my superiors asked me if I wanted to be transferred to the headquarters in Shanzhou. However, I felt that I had to deal with the field at hand. Besides, I also have a project at hand, which is about simplifying deep well mining. As for the casing process and this kind of production technology, it is impossible to conduct research on it unless you are on the front line, so I didnt agree. ??Qin Wengui is not an ordinary oil well operator, but a senior engineer, a high-level application-oriented talent. Thats now Oh, drilling in Qingtang Bureau. Although many state-owned enterprises have begun de-administrative reforms in recent years, units such as petroleum and forestry are generally located in remote locations and have huge jurisdictions. Their business also requires them to have certain administrative functions, so they have not been reformed along with them. ?Hence, large oil fields such as Qingtang Bureau are still on the same level as prefecture-level cities, and their affiliated drilling offices are also equivalent to a municipal-level bureau. Qin Wengui was able to reach this position at the age of 38, and his progress is definitely very fast. Forget it, lets not talk about me for now. ?After chatting with an acquaintance, Qin Wengui gradually relaxed: Calculating the time, Chang Gong should be graduating soon. Are you planning to continue your studies or go somewhere higher? ??When this question was asked, before Chang Haonan could react, Zheng Liangqun, who had been sitting next to the two of them and listened, immediately stopped holding back and covered his face and laughed. Actually, Qin Wengui really just found a reason to ask ??He didn''t know the other seven people at this table at all, but they all seemed to be in high positions at first glance. Only chatting with Chang Haonan can relieve the tension. The petroleum industry and the military industry are two completely different lines in administrative management. Let alone the leader of a second-level central enterprise, Qin Wengui may not even know who the director of the Commission of Science, Technology and Industry for National Defense is. ?Just like Chang Haonan, he doesnt know who the general manager of Huaxia Petroleum is. ??When the two of them received the award together, Chang Haonan''s title was quite eye-catching "student". According to normal time calculation, it is true that I will graduate from graduate school next year. From Qin Wengui''s point of view, since Chang Haonan has already sat at this table, it must be a bright future. It is obviously a good topic to ask him about his plans after graduation. Its just... In the end, in order to prevent Chang Haonan from bragging, Zheng Liangqun took the initiative to explain the current situation to him. Qin Wengui: ?The scene was very embarrassing for a time. Fortunately, the awkward atmosphere did not last long. Are you Chang Haonan from Beijing University of Aeronautics and Astronautics, Professor Chang? A voice sounded from behind Chang Haonan. He turned around and saw a middle-aged man who looked to be in his forties. "I am." He stood up and picked up his own glass of wine. Because I dont drink alcohol, it is filled with water. ?However, in this situation, it is obviously impossible for someone to actually persuade you to drink. Excuse me, are you... Chang Haonan has just been a professor for more than three months, and he is still not used to being called professor. Compared to model chief engineer and chief planner, this title is not as widely circulated. Tian Gang, a professor at Yan University, Department of Mathematics. ?The other party replied: I have admired your name for a long time. When I was walking past here just now, I heard this comrade general introducing you, so I came here to get to know you. ?Chang Haonan thought for a moment and finally remembered the identity of the other party. I saw this name when I was reading the paper before. Study of differential geometry. I then remembered that in the last life, Professor Tian seemed to have had some written disputes with another differential geometry master, Qiu Chengtong. ?However, Chang Haonan''s understanding of this is only at the level of gossip, and he has no idea of ??who is right and who is wrong. I dont want to have a concept either. ?This kind of rhetoric in academic circles will not produce any results in the first place. ?Although he does want to make some noise in the mathematics community now, it is mainly to prepare for setting up academic journals and even research institutions in the future. In the final analysis, Chang Haonan is not involved in the mathematics circle. More importantly, he has abundant resources at hand, so there is no need to get involved and cause trouble for himself. It turns out to be Professor Tian. He clinked glasses with the other party: I have read your paper before and got a lot of inspiration. If I have the opportunity, I hope to ask you for advice. Hands out his hand to avoid hitting the smiling person. Although he doesnt know if the other person has any purpose in approaching him in such a slightly blunt way, but since others have shown such a good attitude first, he must also be polite. Actually, Tian Gang''s thoughts at this time are not that complicated. Simply he received a review invitation from the Annals of Mathematics. ? is a proof of two assumptions in the field of differential geometry. There is nothing wrong with the content. If published, I am afraid it will play a significant role in proving the Poincar Conjecture. It can even be regarded as the most influential paper in the field of differential geometry in the second half of the 1990s. At least, there is no problem in naming these two lemmas after their authors. ??The institution of being the only author and corresponding author made him a little concerned Beijing University of Aeronautics and Astronautics. ?This is not a school that specializes in theoretical mathematics. ?Tian Gang has never even reviewed papers from this university in the past. I happened to hear Chang Haonans name by accident today, and out of curiosity, I came over to get to know him. ?Of course, logically speaking, reviewers should not have direct contact with the reviewees. ?Some journals even perform blind review so that reviewers cannot see the authors information. But practice is another matter. ?Especially in small circles like theoretical mathematics. ?There are only a few people in each direction, and almost all of them know each other. If you really want to strictly implement the avoidance principle, then there is no need to review the manuscript. So I dont pay much attention to these. ?However, just when he was about to say something more, a burst of music suddenly sounded, followed by the host''s voice announcing that the dinner had officially begun. ?Everyones attention also turned to the leaders who came to the rostrum to give congratulatory speeches... (End of this chapter) Chapter 774 Shock in the mathematical world Chapter 774: Shock in the Mathematics World In fact, Tian Gang was not the only one who was curious about Chang Haonan. New Jersey, United States. In the editorial office of the Annals of Mathematics of Princeton University Press. ?Shortly after arriving for work, Richard Hamilton walked into the office of senior editor Mikael Lagerstedt. Professor Hamilton? The latter raised his head and was a little surprised when he saw the identity of the person: How did you Of course its because of the paper you gave me for review a few days ago. Hamilton sat across from Lagerstedt and took out a manuscript from his briefcase: I came to Princeton to attend a conference, so I brought it to you on the way. In the 1990s, review comments were still in the parallel stage of online and offline review. There were not many people like him who wrote review comments by hand and then sent them back to the editorial department. But there are still not many cases where it is delivered in person. Lagerstedt quickly took it into his hands: Is this so fast? From the time I sent the review invitation to the other party, less than a week has passed since I was fully prepared. For a mathematics paper, especially a mathematics paper that can be published in a mathematics journal, this review speed is... very abnormal. In particular, the author of the paper also claims that his research will help solve the Poincar Conjecture. Generally it means that there is a serious basic error somewhere in the article, so that there is no need to read the following content at all. In other words, it was written by Minke. Serious mathematicians, no matter how good they are, would not do such a bad job. ?Thinking of this, Ragstetter''s expression was a bit ugly. The editorial department itself is responsible for pre-reviewing the submitted manuscripts. ?The paper with serious problems should not be sent to the reviewers. ??If an inaccurate article is really sent for review, or it is sent to a big boss like Hamilton, it will be a huge blow to him, and even to the reputation of the entire Annual Mathematics Journal. Lagerstedt suddenly felt a little regretful. As an editor of a mathematics journal, he graduated from the Princeton Department of Mathematics with a master''s degree, but he knew that he was not an academic person, so he became an editor. After finding this paper in his mailbox, he read it again. I found that I seemed to be able to understand it. In addition, the author also wrote about the Poincar conjecture, so he decided to submit it directly to several big guys in the field of differential geometry for review. I knew...there must be something wrong with a paper that even I can understand..." Such articles from unknown research institutions and unknown scholars should be more cautious and handed over to some lesser-known second- and third-rate professors for review Ragstedt thought in annoyance as he opened the manuscript Hamilton had brought. Then I saw Suggestion for publication. "ha?" ?Lagerstedt, who had already done enough psychological preparation, didn''t even react for a while. After being dazed for a while, he raised his head and looked at Hamilton opposite: You mean...this paper can be published directly? The latter was also stunned. Lagerstedt has been an editor of the Annals of Mathematics for almost thirty years, and he can ask such nonsensical questions, just like Perelman suddenly asked him whether 1+1 is equal to 2. ?His first reaction must be - there must be some other deep meaning behind this. ?However, after thinking for a long time, Hamilton could not think of any other meaning besides the literal meaning, so he could only nodded: Strictly speaking, it is recommended to be published directly. I am only one of the reviewers. Doesnt the final decision rest with your editorial department? NoI mean Fortunately at this time, Lagerstedts IQ gradually began to regain the high ground: I mean, I didnt expect you to give review comments so quickly. Speaking of this, I am very interested in this author. Hamilton sat up straight and said solemnly. So...this article can really promote the proof of the Poincar Conjecture, as he said? Lagerstedt also gradually relaxed. Thats right. Hamilton nodded, then suddenly smiled. "What''s wrong?" Lagerstedt''s heart was filled with doubts again. Nothing, I remembered something interesting Hamilton waved his hand. In fact, he was thinking of the parody of Fei Mas words at the end of the paper. Mathematics is boring to most people, but not necessarily to mathematicians. ?At least Hamilton didnt mind adding some witty language to his paper. Ahem After slightly adjusting his tone, he cleared his throat and continued: "The two proofs given in this paper are two tools that the differential geometry community has been looking for. Although they cannot be directly said to be the key to unlocking the Poincar conjecture, they are at least a step forward in a possible direction. " I think Perelman will be very interested in this article. Before returning to Russia last year, he was studying the use of Ricci flow to prove the Poincar conjecture. Hearing this name, Lagerstedt was also a little helpless: I originally thought about sending the paper to Professor Perreman, but I was worried that he would not reply to us for a long time... ? Grigory Perelmans character is quite eccentric, fitting many peoples stereotype of the weird Russian genius. It doesnt matter, he will always see it. Hamilton waved his hand, and then returned to the previous topic: What I just wanted to say is not the content of this article itself, but the authors way of writing the paper, or the way he thinks. Lagerstedt did not reply, but showed a puzzled expression. "This article is an expansion based on the theory of Ricci flow. Although it cannot be regarded as establishing a completely new theoretical framework, it still involves some new concepts and new methods. Logically speaking, it should take a long time to complete Understand. Hamilton paused here, but continued: "But when I read this paper, I hardly felt any obstacles in understanding. You must know that combinatorial Ricci flow is the most cutting-edge research field in the field of differential geometry. Even if it is me, or Perelman, I want to explain It is also quite difficult to understand a brand new result..." ?Lagerstedt nodded to show that he understood what the other person meant ?No wonder he thought he could understand it before. This author seems to know where readers like us will encounter difficulties in understanding. Almost every step he writes in the paper explains these links accurately. ?Hamilton held his chin in one hand with a serious expression: This reminds me...teacher, to be precise, the enlightenment teacher. "What''s the meaning?" Hamilton took a deep breath and replied: Only people whose thinking level is much higher than that of readers can write articles in this way. Lagerstedt''s pupils shrank suddenly. If someone else says this, then thats it. But this is Richard Hamilton. The thinking is higher than him, what kind of monster is that? For a while, the two people in the office were speechless. After a while, Hamilton spoke again: The wonderful proof that Fermat did not write has made mathematicians around the world work hard for more than 300 years. Im worried that if we miss this opportunity, we will be delayed for another 300 years... (End of this chapter) Chapter 775 Do you understand turbofan 10 or do I understand turbofan 10? Chapter 775: Do you understand turbofan 10 or do I understand turbofan 10? Richard Hamiltons evaluation was, after all, made only in the editorial board of the Annals of Mathematics, not at an academic conference. Lagerstedt is a careful person, and he cannot talk nonsense with a big mouth. Hence, it may take some time for this influence to spread. For Chang Haonan, the military parade has a greater impact. To be precise, it is the equipment unveiled at the military parade. October 8th. According to Chang Haonan''s plan, his main focus after the holiday will be on developing specific algorithms for manifold learning. After all, the group''s development plan has been basically set. Normally, a chief planner who does not hold the title of deputy general manager will not have much daily work on him unless he holds a party committee. Of course, after all, he is a well-known leader in the group. He cannot be missing on the first working day after the National Day holiday. Therefore, Chang Haonan decided to go to the office to sit for a while and then go back to school after lunch. side. As a result, as soon as he arrived at the office and poured himself a glass of water, before his **** was warmed up, he saw Zhang Liangping from the General Affairs Department appearing at the door. Mr. Chang? The latter knocked lightly on the door. Judging from the tone, it seems that you are in a good mood. But Chang Haonan''s heart skipped a beat and he couldn''t help but sit up straight: Come in and sit wherever you like. Zhang Liangping was actually the personal secretary assigned to Chang Haonan by the group. He just followed the spirit of the superiors'' regulations and avoided mentioning these two words directly. So, when he appeared here, he most likely came with a "mission". ?But this time, Chang Haonan guessed wrong. ?As soon as the other party came in, he put several newspapers and a magazine on the desk. Mr. Chang, during the National Day holiday, I have collected some media reports on this military parade, especially on the air formation. Please take a look. After hearing this, Chang Haonan finally breathed a sigh of relief. Then he took the pile of newspapers and periodicals in front of him and briefly browsed through them. Actually, Chang Haonan himself has read a lot of news and newspapers in the past few days. Available in both Chinese and English. The main perspective of those reports naturally focused on the J-10 prototype that was unveiled for the first time. It is similar to what he predicted before. Almost all analysts believe that the ones displayed at the military parade should be very close to mass production. ?However, what Zhang Liangping collected for him was different. The focus is actually on the two J-11WS demonstrator aircraft, or in other words, the turbofan 10. You must know that this is not the era of self-media with the explosion of information. If the engine of the plane is changed, as long as the first person sends it, it will soon spread throughout the entire network, and the whole world will know it without waiting until the next day. In the era of paper media, the speed of information circulation was very low. Even if more professional media or open source intelligence analysis organizations notice the existence of Turbofan 10, the news will not spread widely. The reports in front of me all focused on the new engines on the two Flankers, which were obviously specially screened by Zhang Liangping. Providing leaders with summaries of news reports is indeed one of the secretaries jobs. But to single out what was said about the Turbofan 10 so precisely The road is getting wider, boy. ?Chang Haonan is really willing to watch this He certainly does not need to gather any information from these external sources. Mainly, there is the pleasure of "parents showing off their children in the circle of friends, and then secretly peeking at the screen to read the comment section." ?So, Chang Haonan opened the first newspaper with great interest... This report, which was published on October 2 and occupies more than half of the page, is very informative and provides a detailed analysis of the importance of the J-11 to the Chinese Air Force after it is fully localized, as well as the two future third-generation aircraft. Fighter positioning problem. Also added a very eye-catching comparison with the Air Self-Defense Force F15J. It''s a pity that the author has a good idea and stops abruptly at the climax, and claims that there will be more detailed content in the album and magazine to be released later. Out of curiosity, Chang Haonan found the beautifully bound magazine again. ?Then I couldnt hold myself any longer. The content in the magazine is indeed very detailed. Not only does it have large color photos, but it also takes more than ten pages to vividly describe the process of the introduction, localization and improvement and upgrade of the "Wolffan 11 engine" along with the J-11 - Thats right, this article describes the Turbofan 10 as an upgraded model of the AL31F. ??And because it was installed on the J-11, I directly clicked the name of the turbofan 11. There are even memories and comments published by "Russian technicians", as well as detailed technical data of the engine. Chang Haonan was stunned for a moment. ??If none of the punctuation marks, including the model name, chief engineer''s identity, R&D unit and important time nodes, were correct, he would even think that someone in the R&D team had leaked the secret. Obviously, this author does not have any inside sources. ??But being able to write such a thing eloquently under purely abstract conditions... The literary level is indeed very impressive. Chang Haonan pointed at the magazine with a dumbfounded expression: How can this be said to be true... ?Zhang Liangping, who was sitting on the chair opposite, turned his head and took a look, and also laughed: Hey...the content is not important, its just wild guessing among the people. The main reason is that the public has high expectations and voices for our new engine..." Let me tell you, this magazine was priced at 20 yuan. I raised the price to 50 yuan that day, and then I snatched it from the bookstall owner. Obviously, he had read it before and knew what was written in it. ??Chang Haonan was shocked when he heard this, but for a moment he didnt know what to say, so he had no choice but to shake his head: Its not surprising, its really well written. Thanks to the fact that I designed the Turbofan 10 myself, otherwise I would have believed this literary work Just when Chang Haonan was about to see what outrageous content would follow, the phone on his desk suddenly rang. ?Zhang Liangping quickly stood up and motioned to wait outside first. ?Chang Haonan picked up the phone. ?A slightly unfamiliar voice sounded over there: Mr. Chang, I am Liang Zhuoping from the Aviation Industry Group. ?Chang Haonans old boss in the past. However, there is not much direct contact between the two. After all, Chang Haonan basically had a direct connection with Ding Gaoheng. Later, the two families separated and the intersections became even less. Mr. Liang, hello, hello. Chang Haonan answered while thinking about what the other party could do to him. The news just came from the aviation technology side. They received a cooperation invitation letter signed by Oliver Weili, the head of Dassault Aviations China region. ?Liang Zhuoping got straight to the point: What Dassault means is that several of their current main models of business jets are designed for the European market, so they hope to cooperate with us to develop a new model that can adapt to the Chinese and North American markets. After the split of the Aviation Industry Corporation of China, China Aviation Technology did not follow the split, but remained affiliated with the Aviation Industry Corporation of China. After all, it seemed at the time that it might take some time for China to export aero engines alone. Even if there is, as long as the business volume is not too large, there is no problem in continuing to use the aviation technology channel. After hearing Liang Zhuopings words, Chang Haonans first reaction was outrageous: Cooperate with us to develop? ?Although China''s current economic level has been growing rapidly, it is still in the stage of "rapid progress is due to a low starting point". At least in 1999, it was still a little too early to enter the high-end market such as business jets. Let alone joint research and development. Business jets are all about tonality. At least in the 1990s, Chang Haonan had to admit that China still lacked convincing power in the high-end market. ? Even if you really need some of the technologies here, such as wing design or active noise reduction, you should still choose the supplier model. ?Liang Zhuoping hesitated for a moment, and then explained: The reason disclosed in the document is that none of their current main models can fly across the Pacific, and there is no way to fly directly from China to Europe. They really need models with longer ranges to compete with Bombardier and Gulfstream. Chang Haonan frowned. Reasonable. But not reasonable enough. And if it is for this reason, it has nothing to do with the Aerospace Power Group. ?Liang Zhuoping paused for a moment and then continued; "However, we have inquired through some private relationships we have established before. It is said that Snecma Group hopes to find an opportunity to conduct technical cooperation with us, um... to be precise, with you, and Dassault only provides a White gloves. Director Ding means, let me ask Mr. Chang for your opinion. (End of this chapter) Chapter 776 Isnt there really a war situation? Chapter 776 Is there really a war situation? As the chief planner and the only member of the leadership team who is also responsible for front-line research and development work, it is normal for such a major foreign cooperation project to be contacted first by Chang Haonan. Snecma, the French state-owned aerospace group. ??Although it sounds like something like "China Aviation Industry Group", in fact, the name Snecma itself is not particularly out of the ordinary. The more well-known ones are CFM, a company jointly established by Snecma and General Electric, and later, the Safran Group formed by merging with Sagem. So when faced with Liang Zhuopings explanation, Chang Haonans first reaction was Didnt react. China has indeed made some progress in aviation development, but the projects that have actually been implemented are limited to one turbofan 10. ?Due to the relatively weak R&D capabilities, even if Chang Haonans previous proposal of using an off-the-shelf turbofan 10 core machine to develop aeroderivative combustion and high bypass ratio engines would have to wait until the final design of the turbofan 10 body is finalized. As for the implementation, we have to wait for a few more years. ?At this time, the French suddenly came to discuss cooperation. It is still done in this secretive way. The means of concealment are still so crude. It gives people a sense of dj vu as if holding a pipa and half covering their face. Its really hard to figure out what to talk about. I cannot make the decision directly on this matter alone. It needs to be discussed within the group before making a decision. ?Chang Haonan suddenly discovered that this way of doing Tai Chi is indeed somewhat useful. "It''s not urgent. I''m just reporting the situation on a routine basis. After a while, a staff member from the aviation engineering department will bring over the other party''s letter and documents." ?Liang Zhuoping on the other side of the phone replied. Chang Haonan is now a person with a formal leadership position. Many things still need to be filed through formal procedures. It is no longer possible to talk directly in Ding Gaoheng''s office like in the past. After hanging up the phone, Chang Haonan leaned back on his office chair, rubbing his forehead and thinking. Of course, no matter what the opponent wants to do, if the soldiers come to block the water or the soil, contact must still be made. Just before that, you have to make some mental preparations. At least set the main tone of the negotiation. Should we actively push forward, or should we focus on wrangling? ?According to his memory, before this company became part of the Safran Group in 2005, its exchanges with China should have been limited to the maintenance of CFM series engines widely used in civil aviation aircraft. Also, when the Turbofan 10 project was approved - not this time, but the early stage of the last project approval, which was almost ten years ago, at that time China was still preparing to turn the Turbofan 10 into an F110 analogue, so it hoped to start from that. Snecma Group, one of the shareholders of CFM Group, has obtained some technical information and technical guidance on the CFM56 core machine. But by the end of the 1980s, the relationship between China and the Western camp had begun to turn cold, and due to well-known reasons, the relationship between China and France had experienced some twists and turns, so this matter gradually fell into disuse. . Furthermore, Chang Haonan directly started a new one. Apart from the name, the current Turbofan 10 is completely different from the previous plan and CFM56, so naturally there is no need to have anything to do with each other. ??As a result, Hedong has been in Hedong for thirty years, and Hexi has been in Hexi for thirty years. Now, although it is not clear why, the offense and defense have changed, and it is the opponent''s turn to come to ask for cooperation. After much deliberation, Chang Haonan called Zhang Liangping who was waiting at the door first. Mr. Chang. Looking at Chang Haonan''s serious expression, the latter understood that he had something to do on his own, so he turned around and closed the door to the room. Lao Zhang, there are a few things you need to do. Please note them down. You said. Zhang Liangping quickly took out the notebook he carried with him. "Someone from China Aviation Technology will come over in a while and send you a cooperation invitation letter submitted by Dassault Group. You can collect it on your behalf, and then find someone from the External Liaison Office who is relatively experienced, preferably someone Comrades who understand French, make contact with the French, be careful not to express your stance first, and first see what kind of medicine they are selling. " Chang Haonan speaks very quickly, but Zhang Liangping is also an experienced executive and can keep up with the rhythm. Second, look for the news related to Snecma Group in recent months, summarize the substantive content, and send it to my office as soon as possible. "Also, contact the group archives and ask them to sort out the information related to the pre-research of Turbofan 10 and the research and development work at the beginning of the project. It is not technical, but related to external cooperation. Once completed, send it to Me." When Chang Haonan said the last part, Zhang Liangping raised his head in shock and looked at the former. ?Obviously, the fact that the chief designer of Turbofan 10 asked him for the archive information of Turbofan 10 made his brain a little confused for a while. Oh...not the turbofan 10 we are developing now. Chang Haonan explained. ? As a purely administrative staff member, Zhang Liangping was probably just a junior clerk who had just entered the company 10 years ago, and he may not even have worked in the aviation system. It is normal for him to be unable to react to these things for a while. Its the Turbofan 10 that was the last project that was launched before I took over. Anyway, if you told the file that it would be built between 1985 and 1995, they must know whats going on. Before Chang Haonan, Zhang En and Mr. Zhang were in charge of the research and development of the turbofan 10. They are currently responsible for the development of subsequent upgraded models of the QD130 gas turbine at the 606 Institute. However, the latter actually took over halfway and may not be aware of the earlier things. Another phone call to find the person involved, it would be better to just dig through the files from the pile of old papers. "yes!" Zhang Liangping replied. But he did not close the notebook and leave immediately, but changed the subject: "Mr. Chang, the last two things are easy to talk about. I can do it after I go back. But after our group was split, the External Liaison Office is almost a shelf. Except for the director and deputy director, there are only those from Haojing Engine Group. Among the few comrades who are seconded here, as for those who can speak French... I''m afraid I can''t find them..." Under Chang Haonan''s deliberate promotion, Haojing has gradually become a window for foreign cooperation with China Aviation Development and even the entire aviation industry. Haojing Group has successively undertaken the production of Sibei MK202, D436T and M250 small turboshaft/turboprop engines. The three localization projects are the only ones in the aviation development system that have experience in this area. Therefore, when setting up the External Liaison Office, a few people were recruited from them. ?The introduction of the Ahaye engine back then was led by the Bingcheng Aircraft Industry Group together with the Z-9 project, and is now not part of the aviation engine system. The head office is divided into two according to business, and some pains are definitely unavoidable. Chang Haonan thought for a moment: Then Ill first find someone with experience in negotiation to avoid being tricked by the other partys trap at the negotiation table. Then Ill contact Director Ding and find some people from the External Liaison Department. ?If other people said this, they probably wouldnt dare to confirm it. But Chang Haonan''s connections at the Science and Technology Commission are relatively strong, and it''s just a matter of borrowing a few people. ?After sending Zhang Liangping away, Chang Haonan breathed a long sigh of relief and turned his attention again to the newspapers and periodicals on his desk that he had not yet finished reading. There is still some time before lunch, so I might as well pass the time. ?However, the stamina of the previous magazine was so great that Chang Haonan was worried that if he looked at it a few more times, he might doubt whether the Turbofan 10 was designed by himself. ?So, he simply pulled out an English newspaper from underneath. Chang Haonans English level is not very high, but he has memorized a lot for the exams. Reading some ordinary English articles is no problem. Then he saw According to our investigation, in the mid-1980s, China launched a third-generation engine project code-named ''Taihang''. After an initial period of confusion and fumbling, they set their sights on the F110, which had just been equipped with the F15 fighter jet at that time. A few years later, China obtained part of the technical data of the CFM56 core engine through the Snecma Group, and developed their own high-thrust turbofan engine on this basis. Therefore, it is speculated that the performance should be the same as that of the F110GE100 (the earliest model) Comparable or slightly weaker Its really amazing ?Chang Haonan put down the newspaper and sighed: There cant really be a strategic deception bureau ?Of course, complaints are complaints, but the author of this report is not a pure layman like the picture album magazine just now. But a senior commentator at Jane''s Defense Weekly and a former senior engineer at General Electric Company. In other words, he can at least represent the views of some people in Europe and the United States on turbofan 10 It is also a sibling of the F110 engine. This also provided Chang Haonan with a brand new idea. (End of this chapter) Chapter 777 Sow melons and reap beans Chapter 777: Sow melons and reap beans ? ?These rumors about the source of the turbofan 10 technology, if they are only circulated in China, will essentially not exceed the concept and influence of a small essay. But if foreign reports, and serious reports, are involved, it would not be a bad thing. In fact, for an engine that may soon enter the mass production and service stage, it is impossible for basic information such as structural design to remain unknown for a long time. After all, you have to issue maintenance manuals and other technical materials to grassroots units, and once these things arrive at the grassroots level, it will be impossible to prevent them from leaking as time goes by. ??The reason why the outside world''s perception of the Turbofan 10 is so skewed is mainly because Chang Haonan''s movements are too fast. From the determination of the design plan, to subsystem design, to component-level testing, bench testing, and now installation testing, it was all completed in one go in less than three years. Especially the large-scale installation tests, even concentrated in the half year from the beginning of 1999 to the present. Furthermore, from design to testing, everything is done in one go, with no rework process at all, which reduces the number of insiders to a minimum. In other words, those who have seen what Taihang looks like may not even have time to take their annual leave, let alone retired or retired. The entire project operates almost in a semi-closed environment. The chances of leaking secrets will naturally be reduced. For the outside world, they are also accustomed to the research and development cycle of aircraft engines that often takes ten years or even longer. The Turbofan 10 has only been three years old and there is no new news. Under normal circumstances, no one would think about tearing it down and starting over. Now that new engines are coming out, unreliable ones are naturally pure guesses, and even if they are reliable, they are completely guessing. Analysts can only shoot arrows first and then draw targets based on the only clue CFM56. ?Of course, from a technical point of view, general information such as the overall design plan is actually not that important. ?For example, any ground handler who handles Boeing aircraft will know the overall design of the CFM56. Even the engines themselves are sold all over the world along with the passenger planes, and you can dismantle them and study them if you want. But no one can reproduce it exactly as it is. At the end of the day, if it were so simple to build an aircraft engine, then the aircraft engine would no longer need to be the crown jewel of the industry. But if it comes to turbofan 10 specifically, we can take advantage of this information gap Since foreigners think that our model is developed from the CFM56 core machine, and their analysis is clear and logical, then we will follow them. ??Neither directly admits nor directly denies it. When asked, it implies three consecutive words: Everyone understands it, no need to explain too much, just take a closer look. ?This way, at least there will be a round of werewolf killings within the Western camp. If the Chinese people play CFM56 so smoothly, it must be because we have a traitor and sold the relevant technical information. ?Even if the matter is settled in the end, or the actual situation of Turbofan 10 is exposed in a few years, it will still have the effect of destroying the internal relations between the opponents. ?Furthermore, the fact that the French approached the Aerospace Power Group for cooperation at this sensitive time point is highly likely to be related to this. After all, CFM Group was jointly established by Snecma and General Electric. Its just not clear yet whether the other party wants to investigate the technical leakage or has some other purpose... ?Thinking of this, Chang Haonan picked up the phone again and dialed the internal number of Zhang Liangping''s office... The task he assigned to Zhang Liangping obviously could not be completed within a day or two. Therefore, after dealing with this small emergency, Chang Haonan returned to school as planned and began to develop a specific manifold learning algorithm. . Compared with the purely theoretical paper he previously submitted to the Annual Journal of Mathematics, this is the direction he focuses on. Before the National Day, Chang Haonan had sorted out two basic algorithm ideas, and Yao Mengna and he each chose one to continue researching. Although the results he conceived on the spot may not be the optimal solution in one step, they are at least representative enough. ??The first category is a global idea, which maps adjacent points on the manifold to adjacent points in low-dimensional space during dimensionality reduction, while ensuring that distant points on the manifold are mapped to distant points in low-dimensional space. The second type is a local idea, which only needs to ensure that close points on the manifold are mapped to adjacent points in the low-dimensional space. In comparison, the former is more intuitive (of course only relatively intuitive), but the computational complexity is very high, which poses certain challenges to both hardware level and algorithm design. The local idea is more abstract, and the correspondence between distant points is not clear, but the calculation amount is relatively small, and it seems to be more suitable for the current computer performance. This time, it was Yao Mengna who took the initiative to find Chang Haonan a few days later. ?However, it is not because the former has constructed the algorithm according to the overall idea. In other words, we did come up with an algorithm, but found that we had reached a dead end. Mr. Chang, I used the constructed isometric mapping algorithm to perform data point generation optimization tests on the two-dimensional manifold [t, s, X] in the three-dimensional space. ?Yao Mengna put a few pieces of paper on Chang Haonan''s table: For the complete surface, the efficiency of the algorithm is quite good, and the generation coordinates of the complete S-surface are basically restored. But if I dig out a square area with a length and width of on the two-dimensional manifold, which is equivalent to opening a hole on the surface, which is a very common situation in practical applications, then the generated coordinates will be distorted. , causing the area of ??the cavity to become larger and become an approximately elliptical area..." Simply put, it is not easy to use. The existence of holes in the manifold means that the subset of Euclidean space equidistant from the manifold is non-convex, and the deviation produced when calculating the shortest path between sample points on the manifold increases..." ??This problem discovered by Yao Mengna is also an area that has not yet been studied by Chang Haonan. Fortunately, the overall idea is relatively intuitive, so he can analyze it on the spot. In other words, if you want to use the isometric mapping algorithm, or to expand it, use the global algorithm, then the manifold object must satisfy the conditions of being isometric to a subset of the Euclidean space and the subset being convex. ?Chang Haonan lightly paused the ballpoint pen in his hand and finally concluded. ?The algorithm itself was optimized and revised little by little by Yao Mengna, so she followed Chang Haonan''s ideas this time. So Yao Mengna looked embarrassed: You knew before that this road was dead? Ahemthats not the case. Chang Haonan immediately denied: I just thought of it after listening to your explanation... Actually, I have been studying how to improve the local linear embedding algorithm (LLE) during this time. He opened his computer as he spoke, then took out a piece of paper and laid it next to the keyboard: The biggest problem with LLE is that the local weights it uses cannot fully reflect the local geometric structure of the high-dimensional manifold. Therefore, for singular or nearly singular systems, a positive number needs to be artificially added, but the selection of It greatly interferes with the results..." ?Oddly enough, after writing that paper, Chang Haonan found that his way of thinking seemed to be somewhat different from the past. Specifically, it became more coherent and smooth. After half an hour of introduction, not only did he not get stuck at all, but even Yao Mengna, who was listening next to him, didnt feel that there was much that he didnt understand. "so." ?Chang Haonan put the pen aside and said in a determined tone: Obviously, using multiple sets of linearly independent weight vectors to construct a local linear structure can improve the final embedding result. Yao Mengna was silent for a while, then nodded: Thats true. The two of them continued to fall into silence. Speaking of which, we first started studying manifold learning to...solve the problem of automated inspection of pulsating production lines? It was Yao Mengna who broke the silence again. "Um" Chang Haonan nodded: However, the content of our current research cannot be directly applied to your topic. ? Manifold learning is just a process of data dimensionality reduction, which at best solves one of the many obstacles on the road to automated production. Hearing this judgment, Yao Mengna sighed: Sure enough, my idea may still be a bit too radical... ?That''s really radical. ?If her plan is fully realized, Factory 112 can directly withdraw its workers and turn it into a black light factory. ?However, Chang Haonan then changed the subject: However, this improved LLE algorithm can play a role in other fields. It belongs to the willow tree that has been planted unintentionally to form a shade. For example? Yao Mengna frowned slightly and looked at the dense formulas on the paper in front of her. For exampleinformation retrieval, data screening ?Halfway through, Chang Haonan realized that these did not seem to be specific "applications", but could only be regarded as application-level technologies. ?So I thought about it for a while: "If we want to move closer to specific production links...probably...equipment status monitoring and automatic fault diagnosis?" In fact, if this algorithm is extended, it should still be able to shine in many fields. Its just that Chang Haonan could only think of his old profession for a while For example, an airplane breaks down. In the past, ground crews could only carry out investigation slowly. If the aircraft has enough sensors and can effectively screen and analyze the data fed back by the sensors, then the aircraft''s avionics system will determine the specific location and circumstances of the fault. Even, when the failure is just a clue, it is nipped in the cradle. There are just some difficulties to overcome in operation. ?For example, current sensors are relatively large, and it is difficult to fit a sufficient number into an aircraft. ??But in any case, this is obviously a technology with considerable potential. (End of this chapter) Chapter 778 Help France create Rafale? Chapter 778: Help France create gusts of wind? ?After the algorithm development work on manifold learning came to an end, Chang Haonan received two messages almost at the same time. The first one comes from New Jersey on the other side of the ocean. The review results of "Annals of Mathematics" are out Publish directly without modification. According to the reviewers'' comments, although the paper still has room for improvement in terms of writing habits and wording, attention should not be paid compared to the impact its content may have on differential geometry, and even the entire mathematical community. Too much focus on these meaningless details. Therefore, the editorial board decided to publish this paper in the next issue, the 12th issue of the Annual Journal of Mathematics in 1999, and make it the back cover of the current issue of the magazine. The final result is expected. ?However, it was a surprise that it went so smoothly that it didnt even require minor repairs. After all, this was his first foray into the field of theoretical mathematics in his two lifetimes. ?Of course, receiving this email only means that the paper has been accepted. ?In this era, there are no such things as online publishing or early publication. If you want to see the paper, you have to wait until the magazine is officially published in November. In other words, the Annual Journal of Mathematics is still keeping up with the times and will release electronic versions simultaneously. ??If it had been placed in the past, or in other journals, you would have had to wait for the physical book to be mailed across the ocean. Hence, the impact of this article should have to wait for another stage to be revealed. Its just that the name Chang Haonan has obviously gained some status in the mathematics community because of this article. Because, along with the review results, there was also an invitation letter signed by Mikael Lagerstedt, senior editor of the editorial department of the Annals of Mathematics. Invite Chang Haonan to attend an annual mathematics conference held in Princeton at the end of December 1999. ??Princeton Universitys status in the mathematics community does not need to be mentioned much, and being invited by the editorial board of the Annual Mathematics can be regarded as an honor. ?Its just that ??If Chang Haonan was just a simple mathematician, then it would not be a bad idea to live in the world for a long time. After all, although there are many Chinese mathematicians, mathematicians of Chinese nationality who have made achievements in Chinese research institutions have not appeared for some years. But Chang Haonans identity is complicated and special after all. Even if you are traveling within the country, you must make your itinerary and security plan in advance. It is impossible to go abroad if it is not necessary. ?However, Chang Haonan did not reply and refused. In the world of mathematics, there are still a lot of weirdos. ??He doesnt respond to emails or attend meetings, and is likely to be regarded as an eccentric genius like Perelman. But if the straight ball is rejected, it will become more rigid. ? ?Annals of Mathematics and Princeton still have to give some face. As for the second matter, the matter that Chang Haonan assigned Zhang Liangping to handle has already come to fruition. In the group meeting room. Seven members of the leadership team, including Chang Haonan, sat on both sides of the conference table. Since the formal establishment of the Aerospace Power Group, this is the first time that such a complete lineup has been held. Comrades. ?Zhu Linyu, who was sitting in the first place, spoke first: This meeting is convened for everyone. In addition to summarizing the work of each group in the past few months since the group was established, it is also to discuss the cooperation between us and the French Snecma Group. Zhu Linyu is the leader of the group after all. ?Whether Chang Haonan asks someone to investigate or has someone contact the French side, although it is within his own scope of authority, he must report it to him. Including this meeting, Chang Haonan suggested that Zhu Linyu organize it two days ago after receiving the survey results from Zhang Liangping. Therefore, although the latter did not know the specific details, he had already known that Snecma came to ask for cooperation. But the other five people looked at each other in shock after hearing this, obviously a little surprised. ?However, no one interrupted the leader on this occasion. They just waited quietly for the next step. Comrade Haonan, please introduce the specific situation. ?Zhu Linyus voice drew everyones attention to Chang Haonan. "good." ?Chang Haonan took out the materials he had prepared long ago from his briefcase. "The cause of this incident is that about half a month ago, China Aerospace Technology Group received a cooperation invitation letter from Dassault Group China Region, hoping to work with China Aviation Industry Group to develop a longer range aircraft. Business jets, and we, as well as Snecma Group, are also on the list of partners. Of course, this thing sounds a bit strange. After all, the demand for business jets in our country is still in single digits. Even if Dassault has laid out the blue ocean market in advance, there is no need to make such a big move. "So, I first sent a few experienced comrades to make tentative contacts with the other party to see what kind of medicine they were selling." "Then I soon discovered that business jet cooperation was just a not-so-smart idea. Under the guise, the French have been making insidious inquiries about our understanding of the CFM56 core machine throughout the entire negotiation process. Speaking of this, Chang Haonan placed a piece of paper on the projector''s shelf. It is a meeting minutes. CFM56? ?Lin Zuoming looked at Chang Haonan blankly: It seems that our group does not have a model based on this core machine? Indeed not. The latter smiled: But the French dont necessarily think so. Chang Haonan said and replaced it with another piece of paper. ??Its the English newspaper I read before: Currently, the Wests understanding of the turbofan 10 engine is still at the state before we re-initiated the project, which is the state of benchmarking the F110GE100 engine, so it is natural to think that it was developed based on the CFM56 core engine. Hearing this, the other people showed expressions of laughter. It seems that we, Mr. Chang, moved too fast and caught others off guard... ?Zhu Linyu joked with a smile. The meeting room was suddenly filled with a happy atmosphere. ?However, after all, the main topic has not been finished yet, so the serious atmosphere was quickly restored. If I remember correctly, CFM56 should be jointly developed by Snecma Group and General Electric. Deng Shiyou, one of the deputy general managers, said: Do the French want to find evidence to hold us accountable for infringement of intellectual property rights? Thats what Im going to say next. ?Chang Haonan took out another English report and put it on the projector. Just looking at the date, it should be from the newspaper in the first half of this year: "Because the other party has not made a clear position yet, the following are all my current speculations." ?Even though he said this, several other people still pricked up their ears. "In the first half of the year, actually after the Balkan crisis ended, probably in retaliation for the French being the first to announce their separation from the Allies, General Electric announced that it would launch a compliance investigation into France''s new generation military engine project, although it has not yet given an explanation. The official investigation results, but judging from the follow-up actions, it is equivalent to suspending technical support for the M88 turbofan engine currently under development by France and planned to be used in Rafale fighter jets. "It should be emphasized here that the property rights of CFM56 belong to CFM International, a company jointly established by Snecma and General Electric, while M88 is a model independently developed by Snecma. After General Electric withdrew its support, France should be in trouble Unsolvable technical problems have led to obstacles in the mass production of engines, including Rafale fighter jets. In fact, the core machine of the M88 is not completely equivalent to the CFM56. In theory, it is "self-developed in France", but a considerable part of the design refers to the two classic models F404 and F110, and even some parts are simply universal. "so" ?Lin Zuoming felt that he seemed to understand, but he also felt that the plot was a bit magical, so he hesitated for a while before continuing: The French used their own core machine but were stuck by the Americans. At this time, when they saw the normal installation of turbofan 10, they thought we had a unique understanding of CFM56, so we wanted to seek technical assistance? There is quite a Indescribable beauty. At least, this is the most likely explanation. ?Chang Haonan nodded. ?Of course he wont stick to his words, but everyone knows that they are basically inseparable. For a while, the conference room fell into silence. ?No one knows what to say. With emotion, that is, with great emotion. Especially old comrades like Zhu Linyu also know that we tried to find Snecma for technical guidance in the late 1980s. As a result, ten years later, the identities of teachers and students have undergone a 180 change. You ignored me in the past, but I am now... Ahem. So Mr. Chang, can we...really be able to give the French the help they need in terms of turbofan engines? Finally, Lin Zuoming broke the silence: After all, turbofan 10 actually has nothing to do with CFM56 ?Chang Haonan organized the language a little: "Technically speaking, the core machine of Turbofan 10 is one generation ahead of CFM56, so although we have not studied CFM56 in depth, it is difficult to provide them with an immediate solution as the French hope, but if we really cooperate, , help them improve the M88, and at least let the Rafale fighter jets go into mass production first, there will be no problem. " Of course, we have to wait until the design of Turbofan 10 is at least finalized, otherwise we dont have that many manpower. (End of this chapter) Chapter 779 First, let’s build the reputation of China Airlines Chapter 779: First, let China Airlines lose its reputation. ?In terms of technology, as long as Chang Haonan speaks, it is basically the final word. ?However, for the newly established Aerospace Power Group, external cooperation, especially in the form of technology export, is still a new thing. ?Although Chang Haonan has promoted projects such as NH90 before, at that time he was only making suggestions, and the comrades of Bingcheng Aircraft Industry Group were actually responsible for implementation. As for the other people There is even less experience in this area. ? ? China''s ability to engage in reciprocal technological exchanges with Europe started with the MA-60. It has taken less than four years to now, and there are only a few signature projects. So, everyone still thinks about it a lot. Comrade Haonan, when our group was established, didnt we set three key development directions? Deng Shiyou said: After the end of Turbofan 10, the original plan was to shift the focus to the pre-research and project establishment work of those three models. If an international cooperation project is suddenly added, will it affect our originally planned timetable? ?This concern is quite reasonable. For a newly established enterprise, sometimes there is just a layer of window paper between "bold exploration" and "blind expansion". It may not be a good thing to have a stall that is too big. ?However, Chang Haonan immediately waved his hand: I am relatively familiar with CFM56, and I have also learned about the general situation of M88. The potential is actually very high. Its just that Snecma has been focusing on single-rotor engines in the past, and now it suddenly makes a dual-rotor model. It lacks experience and has created such a mess. If it is just improved to a usable state, it will not be too difficult. "Exactly, we have always said that the Turbofan 10 is a major training for our group. After the training is over, there will always be several assessments or exercises before the next actual combat. For the M88 project, it can Think of it as a big test to see how good our technical staff are! In fact, before planning to take over the Turbofan 10 project that year, Chang Haonan had specifically considered continuing to use the CFM56 core machine and developing a plan with lower risks and difficulties. However, after a round of research, I found that using other people''s core opportunities to lock up the ideas and upper limits will not give full play to its advantages in design, and China''s production and manufacturing level is still inferior to that of the United States in this era. There is a certain gap, which is equivalent to only being able to create a youth version of the F110 in the end. ??If you make repairs on the basis of CFM56, it is equivalent to dancing with shackles, it is better to start from scratch. Thats why the current 3.75 generation turbofan 10 is available. The M88 happened to be a model that was forced to dance with shackles due to lack of design experience. At the beginning, the French, who thought they had obtained GE technology, were quite confident. The first test model, M88-1, even dared to indicate a thrust of 8.3 tons at sea level (equivalent to a thrust-to-weight ratio of 10). In the end, it was found that the lifespan and reliability exploded at the same time. It must not be installed in mass-produced machines, resulting in the failure of the first few aircraft. The Rafale prototype can only be equipped with the F404 top for a period of time. The M88-2 currently being tested and planned for installation should increase the temperature in front of the turbine and reduce the thrust to 7.5 tons. However, after the sudden loss of technology sources, this engine, which was already at the end of its research and development cycle, still encountered a series of problems. Of course, if we talk about processing and manufacturing technology alone, even after two years of improvement, China is barely able to compare with old European industrial countries like France. But the reason why Chang Haonan dared to be so sure was mainly because the early M88 had too many problems. It had the same level as the turbofan 10, and even a slightly higher temperature in front of the turbine, but it could only exchange for 7.5 tons of thrust and The thrust-to-weight ratio of 8.5 is completely hampered by the design. Furthermore, CFM56 itself also has some common problems. For example, the gap between the high-pressure turbine rear shaft outer ring grate ring and the second grate ring is too large, which can easily cause the grate teeth to crack, and the original steel wire damper cannot inhibit the crack expansion, causing this part to have a negative impact on the work. The environmental tolerance is extremely poor, and seal failure or even breakage may easily occur. ?Just a few modifications to these questions are enough to confuse the French. ?Of course, if you want to unlock the potential further, thats fine too.? ? ? means you have to add money. There is one more question, Comrade Haonan. After a moment of silence, Chief Accountant Wen Kangjian, who had not spoken just now, pushed up his glasses and asked Chang Haonan: Is it possible that the French came to us to ask for cooperation this time just to show off to the Americans and use this matter as a bargaining chip to force General Electric to turn around? After all, although there are some conflicts between the United States and France, they are still NATO countries after all. Can they really trust us to directly participate in the research and development of air force main battle equipment? Wen Kangjians words may be something that anyone would have thought of twenty years later, but in 1999, they were still quite insightful. ?Several other people also looked at each other and quickly realized that what he said made sense. This possibility cannot be ruled out. Chang Haonan pondered for a moment and replied: In other words, I guess the French are most likely prepared. If the Americans can change their minds, that would be better. If they refuse to look back, they will consider asking us for help. This is using us as weapons... Deng Shiyou frowned. I think this is not necessarily a bad thing for us. Before Chang Haonan could speak, Lin Zuoming unexpectedly expressed his position before him: I think everyone is well aware of General Electrics status and reputation in the field of aerospace engines. Even if the cooperation fails in the end, as an emerging force, we can be used as a bargaining chip by the French to deal with General Electric, and it is actually successful. No matter how you look at it, it is equivalent to advertising for us. ?Lao Lin may not be a technical expert, but he still has some sensitivity in running a business. Yes, thats my opinion too. ?Chang Haonan immediately expressed his support: At this stage, as long as we can improve our aviation power reputation, we can only make profits but not lose money. Of course, it would be best if the cooperation finally comes to fruition. The whole world will know that we have cleaned up the mess after GE gave up the project..." Some things can be viewed from different angles and lead to different conclusions. ??After Lin Zuoming and Chang Haonan''s analysis, everyone suddenly felt that being used as a gunman was not so difficult to accept - Can I eat with GE at a table, how many people want to be the door without the door ... ?Zhu Linyu''s eyes swept half a circle in front of him. Seeing that everyone seemed to have no other questions, he opened his mouth and said: In this case, I agree that we should actively promote this cooperation with Snecma and Dassault. After speaking, he gently raised his right hand to indicate a vote. After all, it is a leadership team meeting. Even if no one expressed opposition just now, the decision-making process still has to go ahead. ?Six other people also raised their hands to express their agreement. Passed unanimously. Zhu Linyu nodded, then lowered his head and made a simple note in his notebook, and then continued: Then this will be regarded as the unanimous opinion of our entire group and reported to the Commission of Science, Technology and Industry for National Defense, and then we will prepare to officially start negotiations! (End of this chapter) Chapter 780 The unexpected effects of strategic deception Chapter 780 The Unexpected Effects of Strategic Deception After setting the tone of agreeing to cooperate, the next thing that remains is to determine some basic principles. After all, this time it was handled directly by the Aviation Power Group. ?It is easy to come up with an idea, but there is still quite a lot of work involved in implementing the idea. Although the French''s purpose may only be to save the General Motors Group, it is still possible to achieve cooperation, and the best preparations must be made. ??Moreover, this kind of tug-of-war can also be an opportunity to exercise the Aerospace Power Groups own negotiating team. ?Looking at the current situation, I am afraid that future external exchanges and cooperation will be indispensable. Chang Haonan cannot be asked to borrow people from the Science and Technology Commission every time. "Now that we are ready to cooperate, we need to determine the conditions proposed by us. Is it joint research and development, or is it simply a supplier of solutions, paying with one hand and delivering the goods? I would like to hear your thoughts. " ? Zhu Linyu has been in charge of the work related to the military-to-civilian conversion of the former Aviation Industry Corporation in the past few years, but he still has some understanding of those foreign cooperation projects, especially the aviation safety cooperation that has been promoted as a benchmark by the Corporation. ?Now that it is my turn to take charge of the overall situation, I must start by copying the gourd and drawing the scoop. ?Of course, his question was not so much about brainstorming as it was about seeking Chang Haonan''s opinion. Its just hard to ask too directly. Of course the other people also understood the implication, so they had no intention of speaking, but turned their attention to Chang Haonan almost at the same time. The latter also knew that now was not the time to be humble, so after a little thought, he spoke: Judging from the current situation, because the progress of Turbofan 10 is relatively smooth, the trust given to us by our superiors, and of course the funding, is relatively sufficient, so we dont have to rush to make quick money, we should try our best to make money in the future. through joint research and development. ?One advantage of joint research and development is that every time an order is made for the M88 or the Rafale fighter jet, the Aerodynamics Group will get a profit from it. Compared to a one-time deal, it is obviously more profitable to make a steady flow of money. Comrade Haonan, I heard that you have promoted cooperation with the Russians in the form of technology exchange in Shengjing before? As the chief accountant, Wen Kangjian is not from the aviation industry system, but he was already a member of the preparatory committee before the group was formally established, so he has some understanding of some situations at the head office. Yes, it is carried out within the framework of Project No. 11. Chang Haonan nodded: "In fact, the entire Project 11, although generally speaking, my country is introducing the R&D and manufacturing technology of the Su-27, there are also parts where the two sides have technical exchanges, such as the J-11B prototype that is being manufactured, and the airframe structure upgrade is made by 601 Institute and Sukhoi Group jointly completed. This is another advantage of collaborative R&D. ?Although Chang Haonan is the youngest, he probably has more project experience than everyone else here combined. Project No. 11 is not a business of the Aerospace Power Group, and the former is not directly involved in theory, but it undoubtedly plays an important role in it. ?Hence, several other people also pricked up their ears. Cooperative research and development means that we have a say in products, of course in weapons and equipment, mainly in the export of products. Chang Haonan continued: Just like the Project 11 mentioned by Comrade Kang Jian just now, models using two-stage upgraded airframes, such as Su-27SMK and Su-27UBMK, must obtain the consent of both parties before they can be exported. After Komsomolsks improved model completed its first flight in the first half of the year, several countries immediately proposed the idea of ??purchasing the improved model, but in the end, only Algeria and Ethiopia signed it because it triggered the restrictive clause we had signed with Russia. Purchase orders for SMK models, while Annan can only purchase models using older airframes..." It is still very attractive for China to increase its voice in the international arms sales market. Following that, Wen Kangjian asked very cautiously. "Then...can we also learn from the ideas of Project 11 and exchange some technologies that we or other brother units urgently need?" Is this... ?Chang Haonan did not respond immediately, but lowered his head and thought for a while: "The French do have a lot of the technology we need, but Dassault and Snecma may not, especially since we have already determined the development direction in both aircraft and engines, and it is impossible to continue to follow the French path. Moreover, technology exchange-type cooperation also involves deep issues of mutual trust. "Mutual trust... They have already asked us to help build the engine, so why are we talking about trust or not..." "It is not mutual trust between them and us." Chang Haonan waved his hand and explained: "It''s their internal mutual trust. The entire Rafale project involves not only Dassault and Snecma, but also Thales, Sagem, and Explosives Group. Relatively speaking, we are more interested in Thales. Our photoelectric equipment, as well as technologies such as smokeless propellants from Explosives Group Company. "We were able to cooperate with the Russians in the form of technology exchange before because we have the Commission of Science, Technology and Industry for National Defense here, and they also have a defense arms export company that can integrate most of the military business. But this time we are working with the French In business, how could Thales contribute its own technology to help Snecma solve the problem? " Although the companies mentioned above are all French state-owned enterprises, there is still no direct benchmarking between French state-owned enterprises and Chinese state-owned enterprises. ??On the Chinese side, Dianke Group exchanged its own technology for the technology needed by the Aviation Industry Group, and then the gains and losses of both parties could be smoothed out through an internal settlement mechanism under the coordination of the Science and Industry Committee. ??Without such a platform and mechanism, extremely complex multi-party rights transfer contracts would have to be signed, and it would be normal for the relevant wrangling to last more than ten years. at the same time. The Chinese people suddenly developed a third-generation high-thrust turbofan engine is a big news in both the aviation and military circles. Hence, it is natural that the French cannot be the only ones paying attention to this. At least, Brad Butler and Zhou Ruifu, who were at the military parade that day, soon discovered the clues after developing the photos. Of course, as military attachs, they are responsible for the task of collecting open source intelligence. They cannot just guess and submit the analysis to a written report. ??However, the prerequisite for open source intelligence collection is that there must be open source intelligence. I only have a few photos at hand now, and they were taken during the flight. Obviously, I cant analyze them clearly. They can only learn from the conclusions of their peers. "Brigadier General, it seems that many commentators in the country believe that this new model of engine may be developed on the basis of the CFM56 core engine. It is said that about ten years ago, China had obtained the CFM56 through the relationship with the French. Relevant technical information, and then based on the F110GE100 engine, we came up with this benchmark model. " ???Bride placed several newspapers in front of Zhou Ruifu, and then said. Including the one that Chang Haonan had seen before. Of course, there will be follow-up and more detailed reports. ?Its just that the first article seemed to set a tone for this matter, causing at least 70% of Western media to tend to analyze it on the basis of it. ?Of course, this is also in line with the mindset of this era. After all, after the J-10 made its first flight, many media claimed that it was a copycat of the Davidian Lion fighter. ?However, Zhou Ruifu is an Air Force Brigadier General and a half-aviation expert. He simply sneered at this statement: "I read the article in Jane''s Defense Weekly half a month ago. Although it is very reasonable, I know the author. He left General Electric about six or seven years ago. He wrote this just to give himself That ''former senior engineer at General Electric'' status is just a bonus." "Furthermore, the French themselves don''t understand CFM56. Even if the Chinese do get the technical information from them, it will be incomplete and may even contain errors. How can they come up with the benchmark F110 engine so quickly? After the finished product is released, do you still dare to show it at an occasion like the National Day military parade? ?This analysis was obviously very convincing, and Bradbury was convinced on the spot. Then you think it might be I saw an analysis from China these days. ??Zhou Ruifu said: The author is a Chinese and is very familiar with the process of Chinas domestic production of Su-27. He has written many details that are impossible for outsiders to understand. He should be, or at least have been, an insider who has been exposed to related work. Obviously, he was talking about that unbelievable little essay. Because the content was so vivid, Zhou Ruifu had hundreds of millions of misjudgments about the authors identity: "His statement is that while China introduced the Su-27 production line, it also introduced AL31F technology from the Russians, but it did not directly produce the original version, but made certain upgrades on the basis of the AL31F to adapt to The Chinese Air Force and the Russian Army have different operational needs. "Considering China''s confidentiality regulations, this may not be the whole truth, but I think there must be some real parts in it. At least in a general direction, it should be much more reliable than the article in Jane''s Defense Weekly... " (End of this chapter) Chapter 781 Get ready to start being a mentor! Chapter 781 Getting ready to be a mentor! ??Although Bai Lid couldn''t find any logical loopholes in Zhou Ruifu''s analysis, he still felt that something was not right. Mr. Brigadier General. The latter rubbed his hands a little restlessly: "Although the author of the article you mentioned is Chinese, Jane''s Defense Weekly is a relatively influential media after all..." ?At the end of the 1990s, Jane''s Defense had not yet become completely entertainment-oriented, and the content was still somewhat in-depth. ? ? Military, political and business people in many countries subscribe to it and even post comments on it. ?However, Zhou Ruifu waved his hand: If it is in Europe or the United States, then your statement may be correct, but in China, or in the entire East Asia region, the content of Janes Defense is actually not interesting. Immediately, he opened the drawer, took out a newspaper and a magazine, and placed them on the desk. ?There are many pencil marks on the newspaper, which obviously have been carefully read. "On the contrary, this newspaper, and of course the accompanying publications, are not very famous, but I asked someone to check the background and found out that it was actually founded by a Chinese military industry company about ten years ago, and it is still used today. We still maintain financial relationships. ??Zhou Ruifu said, reaching out and tapping the newspaper lightly: So, the articles that can be published here must be inextricably linked to the financial backers behind them! ?No one could have imagined that an article written by a small person based solely on his imagination in order to complete KPIs would eventually have such an indirect and direct impact on international politics. In fact, he is completely judging others by himself. ?At the end of the 1980s, in order to satisfy the people''s growing curiosity about military equipment, and of course to generate income during the trough of the military industry, major military industry corporations did register a number of literary publications. Some even established their own publishing houses. But the good times did not last long. Because the operating methods of the old state-owned enterprises were not flexible enough and the content was professional but not interesting enough, these newspapers and magazines quickly changed from blood transfusion kits to bloodletting troughs. Not only were they unable to provide income, but they also Often unable to make ends meet. Therefore, by the second half of the 1990s, most of them were entrusted to individuals or professional publishing organizations on a contract basis. In other words, the original name is retained, but in fact it has little to do with the military industrial unit behind it. Correspondingly, the content quality of publications has also begun to decline. Later, the five major head offices were split into groups, so it didnt matter. ??But in the view of Zhou Ruifu, a senior US military officer, isn''t this a proper script for "the military-industrial complex sponsors the media and lobbying groups"? You also said you have no background? ??And Bradbury had not stayed in China as long as Mr. Zhou Rui, so when he heard what the latter said, he no longer had any doubts. So, they reported this conjecture of "AL31F improvement theory" as the conclusion of open source intelligence analysis. ?Originally, this kind of report was just a routine matter. In addition, Zhou Ruifu and Bradbury were both professional soldiers who started their careers halfway, and had neither diplomacy nor intelligence training. ??Furthermore, in the post-Cold War era, military technical intelligence is not something that requires particularly high timeliness. As long as we wait a little longer, more professional intelligence agencies will submit analytical conclusions with higher credibility. So usually, no one takes it seriously. But this time, the analysis that the two copied directly happened to be stuck at a strange point in time. So much so that a little-known essay compiled by a little-known author in order to complete the KPI eventually changed the entire world''s aviation industry structure... ?Of course, for Chang Haonan, the decision to initiate negotiations has just been made, and the negotiation team has not even been assembled yet, so there is no follow-up at all. After the meeting, we went back to school as usual. For him, the most important thing right now is... Enrollment. ?This enrollment involves two aspects. First, after the National Day, until the beginning of November, graduate students choose their tutors. Second, at roughly the same time, students who have obtained postgraduate exemption qualifications must confirm their supervisor The work of recommending graduate students actually started very early, but these days there is no Xuexin.com and no online archives, so the progress in all aspects will be slower than before Chang Haonan traveled through. Of course, since most schools'' recommendation interviews are just a formality, and the final ranking is basically the grade point average ranking, so before the end of the second semester of their junior year, some students who think they have hope will start to contact their tutors. Just like Chang Haonan himself did back then (although he was proactively contacted by his mentor). ?However, not everyone will do this.? ? ? ? Some students who want to be exempted from studying for postgraduate studies at other schools have no basis for doing so. Teachers from other schools cannot determine their professional rankings based on just a transcript. ??Moreover, the contact at this time, no matter what the outcome, can only be regarded as a personal agreement between teacher and student. In principle, both sides can compete. The mentor candidates will not be finalized in the form of files until November. So after the results of the exemption are announced in October, there will be another peak period for contacting tutors In other words, by the time the postgraduate students choose their tutors in March next year, their tutors have already been snatched up twice by their own school and other schools. ?There is still time left... Ahem. Normally speaking, young teachers who have just been promoted to master/doctoral degree can only wait until the next year. But Chang Haonan''s situation is not normal after all. Even if you only look at the parts of his profile that can be made public, you can realize from the densely packed topics and projects that this teacher is anything but simple. On the other hand, such a young full professor is a golden brand in his own right... Professor Chang, these are the letters from students that the laboratory received in the past period. I sorted them out and they are all here. After officially joining the job, Chang Haonan finally felt that there was a shortage of manpower. Finally, under the strong suggestion of teacher Yang Huimei, she recruited Liu Chenchen, a counselor who had just graduated from her. ??Its just that Im not in the Torch Group, but as the administrative secretary of the entire laboratory. Put it on my desk first. Chang Haonan was checking his mailbox on the computer at this time. He reached out and pointed to the side, indicating to the other party to put the letter aside. "OK." Liu Chenchen put away a large pile of envelopes and left Chang Haonan''s office with brisk steps. I didnt forget to close the door before I left. ?Chang Haonan took out a letter opener from the pen holder and began to open the letters. Compared with later generations, the usage rate of email at this time was not high. Chang Haonan just looked through his mailbox and found only two emails related to graduate student applications, and both of them said that they had sent the relevant materials by letter. Obviously, sending letters through the post office or human express delivery is still the main means of communication. A student from Beijing Airlines ranks second in his major. He hopes to engage in research and development of flight control. He took a class from Mr. Liu Hongbo and scored 95 points I am also a junior student of Beihang University. I am No. 1 in my major. I hope to engage in research in structural mechanics. I have published a paper during my undergraduate period...uh...Journal of Beihang University..." "Master''s degree from Bingcheng University of Technology, majoring in Mechanical Engineering. My supervisor is Professor Li Zhihong. I participated in the above-mentioned project ''New Principles and New Methods of Digital Precision Machining of High-Performance Complex Surfaces''...hiss...I remember this seems to be one of the Seiko Projects" Project and letters of recommendation Chang Haonan opened and read at the same time. It took him almost an hour and a half to read the contents of dozens of envelopes. ??They are all top academics who have obtained guaranteed postgraduate places. In terms of average grades, there is nothing to choose from. The worst one, the undergraduate major ranking is also fifth. Many people even have scientific research experience at the undergraduate level. Although it is unlikely to be the extraordinary experience of Chang Haonan, in this era without projects such as SRTP, it is already quite difficult for undergraduates to enter the laboratory... For the first time, Chang Haonan felt that he had difficulty choosing. ??Professor Li Zhihongs student, if he later confirms with Li Zhihong himself and finds no problems, he has basically decided to recruit him to study for a Ph.D. Bingcheng University of Technology is, after all, one of the Seven National Defense Colleges. Students from there will have a lot less to do when participating in projects. But the remaining master''s degree spot still made him a little difficult to make a decision. Many tutors would prefer to recruit students from their own school, but Chang Haonan has no such tendency. Then...lets have an interview... Chang Haonan selected the five files that he was most satisfied with and handed them to Liu Chenchen, telling the other party to call them back one by one and inviting them to come to Beijing Airlines for an interview. If there are students from other places, travel expenses and accommodation expenses can be reimbursed. (End of this chapter) Chapter 782 Being stepped on by future generations Chapter 782: Being stepped on by future generations At this time in 1999, the third major railway speed increase had not yet begun. It often took 40 hours or more to take a train from a slightly farther place to BJ. As for online Its so funny, 128K dedicated line network for making video calls, one of the highlights is that whoever uses it will know about it. Therefore, the interview can only be arranged on the weekend of this week in a face-to-face manner. In addition to Chang Haonan, Yao Mengna will also be with him. On the one hand, it is simply to make a record, and on the other hand, it is also considered that if there are multiple students who really meet the requirements of the laboratory, then the latter will also have a quota for recruiting master''s students. As for Liu Fangping and Lei Zhixing They are currently on a business trip to the Hudong Shipyard, so they unfortunately missed this interview. ?But the problem is not big, there is still the time after the year - ?According to Chang Haonans experience in his previous life, students who take the postgraduate entrance examination for a masters degree will in many cases develop better than those who take the postgraduate entrance examination. ?This may be because the preparation period for the postgraduate entrance examination allowed them to review mathematics and professional core courses again, so the foundation is stronger. In short, on Saturday morning, Chang Haonan and Yao Mengna arrived early in a classroom specially prepared for them by Tang Lintian On the one hand, the computing center is now overwhelmed and cannot find any spare room to do this kind of work. On the other hand, until the new laboratory located outside the North Fifth Ring Road is built, the Torch Laboratory currently does not have the conditions to completely physically isolate classified projects from non-confidential projects. So unless necessary, it is better to reduce the flow of people there as much as possible. Professor Chang, to be honest, Im a little nervous. ??While waiting for the students to come over, Yao Mengna handed the breakfast she bought to Chang Haonan and said. You are interviewing others, but others are not interviewing you. What is there to be nervous about? Chang Haonan took a bite of the golden and crispy dough sticks and asked with a smile. Oh...thats why Im so nervous... Yao Mengna sighed softly: Im used to being interviewed, but this is my first time meeting someone, and I didnt even think about what questions to ask. ??Although the "examiner" for this interview is Chang Haonan, Yao Mengna certainly can''t just say soy sauce without saying a word. Chang Haonan thought it seemed right, so he gave an idea: Think about what you were asked during your postgraduate interview, and just ask it as it is. Its been so long agoit was six years ago. How can I still remember it so clearly ?Yao Mengna shook her head, and then looked at Chang Haonan: Speaking of Professor Chang, you...it was only three years ago when you were interviewed, so you should still have some impressions. Why dont you tell me about it and give me some advice? Although she has recognized the reality, Yao Mengna still has a rather magical feeling when she thinks that her junior fellow student, who is three years younger than her, has now become the head of the laboratory and a second-level professor. "I" Chang Haonan suddenly paused while drinking soy milk: My situation is different, so it has no reference value... ??During Chang Haonans interview at the Institute of Insurance, he was not asked any regular questions. Instead, he went up to give a lecture to several big guys sitting below, and then passed... Soon, it was time for the interview appointment. The first person to walk into the classroom was the student from Jinghang University who was ranked number one in his major. ?The appearance is unremarkable, giving the impression that he is even a little introverted. "Hello, teachers. My name is Li Yabo. I am a senior student in the Aircraft Department of the School of Aeronautical Science and Engineering. My average score in professional courses is 93.7, ranking first in my major. When I was a junior, I assisted Professor Li Guang to complete a project on small straight planes. Research on the structural design of wing drones and published a paper as the first author..." How else to say that people should not be judged by their appearance. Even though he looked a little timid when he first came in, the young man spoke very fluently and looked normal. Apart from his tightly clenched fists, there was no other trace of nervousness at all... Why did you choose the aircraft major during the college entrance examination? Chang Haonan made a surprise attack and didn''t ask about the undergraduate level - in fact, there was nothing to ask. As a student of this school, you can just ask Tang Lintian for all the information. Because when I first started in the second half of my senior year of high school, I saw reports on the joint military exercises of the land, sea and air forces in the southeast. I felt that our countrys equipment was too backward compared with foreign countries, so I wanted to build an airplane! This answer is definitely not a standard answer. But it is very much in line with Chang Haonans wishes. Because the reason why he decided to design a fighter jet in Liu Hongbo''s class was because of the same stimulation. Then...why do you want to study in my new laboratory? The second question is relatively routine. If you are well prepared, there will even be standard answers. ?For example, I have read **** books and **** papers, and I am very interested in your research direction. ?But this Li Yabo is obviously an unconventional person. ?He scratched his head and showed a somewhat embarrassed expression: "Because when I was a freshman, I heard more than one teacher tell you the legend. I didn''t believe it at first, but then I found out that the textbook for the course "Principles and Methods of Numerical Simulation" was written by you, and I thought it was It''s a bit amazing. Just after I got the postgraduate placement, I saw that you stayed at the school to teach, so I wanted to feel how powerful you are..." ?Yao Mengna almost couldn''t hold her breath after hearing this answer. Chang Haonan next to her also smiled helplessly. ?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? OkayI think youll see it. Yao Mengna nodded beside her, and then asked: When you introduced yourself just now, you mentioned that you published a paper during your undergraduate studies. Should it be the one attached to your previous letter? Li Yabo nodded. How do you solve the aeroelastic instability problem of large aspect ratio straight wings during numerical calculations? Hearing this question, Chang Haonan couldn''t help turning his head and glanced at Yao Mengna This was the first problem he helped each other solve after the two met. Involving the supply of 7-200A, which is now a project to replace the new wings of the MA-60. Chang Haonan also started from that project, which really made Du Yishan see the infinite possibilities in him, so he was chartered to join the 83rd Project. When Yao Mengna asked this question now, she seemed to have a deep memory of what happened back then. Li Yabo also gave the same answer as Chang Haonan: Using the dipole grid method, the large aspect ratio straight wing can be structurally analyzed as a beam wing..." Yao Mengna''s eyes were filled with nostalgia, and she turned her head and glanced at Chang Haonan. Then the two people''s eyes met for a moment. Look back to the front at the same time a moment later. Fortunately, Li Yabo was still explaining his method at this time and did not notice anything strange. How did you come up with this idea? Yao Mengna asked again. Because I remember that Teacher Liu Hongbo mentioned this method when he was teaching us ?Li Yabo was honest and did not say that he came up with it independently. Obviously, he is standing on the shoulders of his predecessors. As for Chang Haonan, it happens to be that shoulder... ?Originally, it was almost time for the interview to reach this point, but Yao Mengna said again: If, I mean, if you dont become Professor Changs student, would you be willing to study under the name of another teacher in the same laboratory? Li Yabo''s face flashed with confusion for a moment, but in the end he gave an affirmative answer. At this time, the timer next to him had already made a ticking sound that the countdown was about to end, so Chang Haonan quickly interrupted Yao Mengna, who seemed to still have something to say: Thats enough, lets end the interview here. Go back and wait for news. Within a week, we will contact your counselor and inform you of the results. (End of this chapter) Chapter 783 Hudong Shipyard’s trump card Chapter 783 Hudong Shipyards trump card After all the interviews, Chang Haonan finally decided to recruit Li Yabo under his name. Firstly, after confirming the situation with Tang Lintian, we found that the young man was indeed very capable in all aspects. Secondly, he also had a good temper towards Chang Haonan. When it comes to recruiting students, there are nothing more than three points. Talent, ability, character. No problem, the rest is just a matter of eyesight. ?Of course, Yao Mengna was not without gains. In the subsequent interview, she had a very interesting chat with a girl named Wan Chuanqing. The latter majored in theoretical physics at Jinling University. Although he did not publish articles as an undergraduate like Li Yabo, his average score in professional courses was as high as a terrifying 97.3 points. He also won the first prize in the national physics competition and was one step away from entering the International Olympiad training team. Only one step away. Logically speaking, students with such great potential go to a strong science school like Jinling University. They usually either go abroad for further studies or continue their graduate studies at the same school. ?But Wan Chuanqing wanted to switch from science to engineering and enter a direction closer to applicationin fact, this is also the choice of a large number of science majors when they study for graduate school. Thats why I want to apply for Beijing Airlines, which has become famous in recent years. As a new tutor, Yao Mengna also hopes that she can make some progress in theoretical basics. ?So the needs of the two complemented each other perfectly, and they hit it off. ?In addition to these two people, two other students expressed their willingness to join the Torch Laboratory as students of other tutors in the same research group without being recruited by Chang Haonan himself. Chang Haonan kept their resumes and application materials, and planned to let Liu Fangping and Lei Zhixing make their own decision after they returned from a business trip to Shanghai. ?Of course, during the waiting time, these students can still continue to contact other schools and tutors. Its a two-way choice. As long as it is not finalized, you can keep a spare tire. Although there were only five people, the interview lasted almost the entire morning. When the two finally made a decision after some discussion, it was already close to lunch time. I didnt expect that Chang Haonan, who got up early and rushed to school, stood up and moved his body, making various joints make a crackling sound: I initially thought that with a new research group like ours and new teachers, students would be more worried when making the final decision... ?His own extremely dazzling experience can certainly attract many people to submit their resumes on impulse. But as we all know, a good researcher is not necessarily a good mentor. Therefore, Chang Haonan thought that after a period of "cooling off period", the students'' enthusiasm would subside. However, it turns out not to be. ?Out of the five people who came for the interview, four said that as long as they could join Torch Lab, it would be no problem to change their mentor. This ratio is quite exaggerated. Thats why you dont eat minced meat. Yao Mengna also stood up, gathered the scattered information on the table and put it into her bag, and then simply tied her hair into a long ponytail: "Many research groups are worried about having no money or projects, and graduate students cannot graduate with results. It''s a good thing for us. We have a school-enterprise alliance, and at least a few million in scientific research funding is guaranteed every year. In addition, the capital specifically approves the purchase of land and equipment. And special funds for site construction, anyone can see that there will be no shortage of money or resources for at least a few years, and even the academicians research team may not be so arrogant. " Whats more, the school-enterprise alliance means that there are many ways to find employment after graduation. As a teacher, how can you still watch your students starve to death? "With this condition, not to mention just asking them to change their tutors, even if they don''t have a tutor, as long as they can graduate, there are countless people who are willing to come." After Yao Mengna explained it, Chang Haonan thought about it and felt that this was really the case. After all, there are many tutors who only care about recruiting students but not training them, and even just leave research topics to students. In other words, even if there is no guidance from a tutor, it will most likely not affect graduation. But if you dont even have a topic and funding, then there is really no hope. Liu Fangping and Lei Zhixing did not keep Chang Haonan waiting for too long. A few days after the interview, the two returned to Beijing Airlines before November. "These are the resumes of the two students I mentioned to you before. Take a look at them carefully when you get back." ?Chang Haonan took out two envelopes from the drawer and placed them on his desk: Teacher Yao and I have conducted interviews a few days ago and found no major problems. If you still want to know anything else, you can call us and ask in detail. Recruiting students was the first time for both of them as older girls to get on the sedan chair, so they were not able to adapt to the change of status for a while, so they just put away the two envelopes with some confusion. Chang Haonan was not in a hurry to urge the two of them to make a decision. After all, keeping these two files was just a casual thing. Even if you miss out, you can wait for the postgraduate entrance examination results to come out and then choose from the students who entered the interview. ?Hence, he changed the topic and went directly to the topic: Tell me about what you learned in Hudong during this period. ?Lei Zhixing and Liu Fangping looked at each other, but the former spoke first: "For the cargo tank using the Gas-Transport storage system, the bulkhead insulation layer is a five-layer structure. From the inside to the outside, it is a 0.7mm Yin steel plate for the main membrane, a main wooden box containing perlite powder with a thickness of about 10cm, and a 0.7mm Yin steel plate for the secondary membrane. Steel plate, a secondary wooden box filled with perlite powder about 15cm thick, and a resin layer about 2-3mm thick. Because there are two layers of Invar steel plates, compared to the Technigaz system that only uses Invar steel in the innermost layer, which is the technical route chosen by Samsung Offshore Engineering, the thickness, weight and cost of the entire cabin are lower. To be bigger, this is a limitation of the physical structure and there is no way to improve it. Chang Haonan was thinking about possible solutions while listening to Lei Zhixing''s description. As a metal layer with a very low thickness, the invar steel layer obviously does not have the ability to insulate, but it can bring better air tightness. ? In this way, the performance of the Gas-Transport system and the Technigaz system in terms of transportation dissipation is basically the same. However, the bulkhead of the latter is thinner and lighter. On the premise of transporting the same amount of LNG, the displacement of the ship can be made smaller and the cost is lower. This is a huge advantage for ship owners. The structural strength redundancy brought by the double-layer invar steel of the Gas-Transport system can also be made up for by Samsung Offshore''s more mature shipbuilding technology. At least make up for part of it. This is somewhat similar to a large passenger aircraft. ?In an era when aviation technology was less developed, transoceanic passenger aircraft were required to have four engines to provide sufficient power backup to prevent the aircraft from crashing due to engine failure during flight. However, with the development of aviation technology, twin-engine passenger aircraft were later allowed to fly transoceanic routes. Although the reliability of two engines is still lower than that of four engines, the slight safety gap is no longer enough to make up for the huge cost increase brought by two more engines. Therefore, by the time before Chang Haonan was reborn, wide-body twin-engine airliners like the Airbus A350 and Boeing 787 had almost completely replaced giants like the Boeing 747 and Airbus A380. However, for some aircraft types that require absolute reliability, such as VIP aircraft, nuclear warfare command aircraft, and large tankers, the four-engine platform still has its place. In the field of LNG ship cargo tank technology, the Gas-Transport system is equivalent to a four-engine aircraft, and the Technigaz system is equivalent to a two-engine aircraft. If the former wants to prove the significance of its existence, it must find ways to learn from each other''s strengths and weaknesses On the one hand, we should try to reduce the cost of use as much as possible, and on the other hand, we should find ways to leverage our own strengths. Thinking of this level, the answer is readily apparent. Thats what I think. After Lei Zhixing introduced the specific situation, Chang Haonan spoke almost immediately: "In any case, the storage container cannot be completely insulated, so evaporation and dissipation of LNG will inevitably occur during transportation. On current LNG ships, this part of the gas is either directly drained or burned. Better yet. Some of it can be recycled into the power system, but the gas consumption of the power system is too small to consume all the boil-off gas (BOG), and a considerable part will still be lost. Then, we can integrate a complete evaporative gas reliquefaction system inside the cargo tank bulkhead system, which can reduce or even completely eliminate evaporation losses during transportation and achieve higher transportation efficiency than the Technigaz system. Of course, the advantages of the Technigaz system in terms of hull specifications and construction costs still exist, but after making some compensation in terms of use costs, we should be able to get at least some guaranteed orders from the GTT Group. Listening to Chang Haonan''s thoughts, Lei Zhixing and Liu Fangping didn''t even know how to answer for a while. After a while, the latter said: Professor Chang, on LNG ships, the bulkheads of the cargo tanks must be included in the overall structural safety design of the entire ship. If you rush to make a fuss here...the risk may not be small..." Chang Haonan just nodded lightly: "Of course there are risks, but Gas-Transport already has excess security redundancy compared to Technigaz, which is equivalent to us converting part of the security that exceeds user needs into economic efficiency. In fact, this is the main reason why Technigaz system currently has an advantage. reason." Since Hudong has already bet on Gas-Transport and has no way to turn around, we can only follow this idea at the moment. (End of this chapter) Chapter 784 The French are screwed Chapter 784 The French...are out of luck After determining the basic response ideas, the development work on boil-off gas reliquefaction technology also began. The ones responsible for this task are naturally Lei Zhixing and Liu Fangping. This is also a relatively common way of running a large research group As the big boss, Chang Haonan only provides basic ideas, as well as some key technologies and resources for non-core projects, while other researchers who are more familiar with the situation are responsible for the specific implementation. This ensures that the entire laboratory operates at a relatively high efficiency. Otherwise, if Chang Haonan is asked to do whatever project comes his way, no matter how energetic he is, he will not be able to take care of it. "Mr. Chang, after we return, we will contact the comrades in charge of the docking at the Hudong factory and ask them to set up a horizontal topic, and then we will apply for it?" ?Lei Zhixing asked as usual. ??When he was studying for a Ph.D., he followed Yan Yongnian through the project application process. Now he just changed schools and is already familiar with the process. "Can." ?Chang Haonan nodded first, but then lowered his head and pondered for a moment, and then continued to add: However, the opposite side is also a central enterprise that has just been transformed into a group for a few years. It is estimated that it will not be very efficient in this kind of spending money, and we cannot waste this time. In this way, I will first allocate 30,000 yuan from the laboratorys public funds to you as project feasibility study and pre-research funds. After the project is officially declared, I will loan the money back. He said as he took out a stack of grant applications from the drawer. There is no online fund management system these days. If you want to make money, you can only rely on this traditional method. Chang Haonan simply wrote the amount and purpose on it, signed his name in the lower right corner, and finally tore it off and put it on the table: Take this and go to Secretary Liu to get it stamped, and then submit it to the school for reporting. Thats it. Lending funds between different projects vertically is basically unfeasible, but horizontal projects are much more relaxed in terms of review. Whats more, the investor is still Torch Group. Thispre-research funding? ?Lei Zhixing''s pupils trembled a little when he saw Chang Haonan writing the words "30,000 yuan". Thirty thousand yuan, which in 1999 was almost equivalent to the entire cost of a small project. ?According to the unspoken rules of the school, a portion of the geese must be plucked, which is even higher than the funding for many small projects. Now we are just doing a feasibility study and preliminary research, and Chang Haonan signed it happily. Even proposed it on his own initiative. Obviously, the depth of resources in this laboratory is unfathomable. After the brief excitement, Lei Zhixing took a deep breath, tried to calm down, and then picked up the allocation form from the table: Professor Chang, lets go get some work first. If nothing else happens, the specific feasibility analysis report should be available before the end of next month. ?Chang Haonan didn''t speak, he just put the pen back into the pen holder, then nodded and signaled the two of them to get busy. Under normal circumstances, a feasibility analysis, even one that is very detailed and involves some preliminary experimental verification, does not require a particularly high cost. ?Especially for the reliquefaction of boil-off gas, the main consideration is the technical route of the reliquefaction process. It is impossible to study such a complex content as the hull strength during the preliminary demonstration process. So, the 30,000 yuan of funding is actually relatively abundant. This is also Chang Haonan''s deliberate move. There is no doubt that Lei Zhixing and Liu Fangping are two people he wants to entrust with important responsibilities. But everything must be done step by step. Whether it is from the perspective of gradually increasing the stakes and giving them enough room to adapt, or from the perspective of testing whether the two are reliable enough, it is a good choice to first let them independently preside over a feasibility demonstration process. ?On the other side, Lei Zhixing, who had just walked out of the office, took out the appropriation slip and stood at the stairs and read it over twice. "What are you doing?" Liu Fangping, who had already gone down half a flight of stairs, turned back with doubts on his face: "nothing." ?Lei Zhixing shook his head and followed his friends footsteps: Im just thinking that we didnt choose to stay in school, but listened to Teacher Yan and came to Beijing Airlines. This step should be the right one..." ?Although at the school level, Qinghua is still a much better platform than Beijing Airlines. But for their two little lecturers, the laboratory they are in and the boss they work with are the most important. No matter how many school resources there are, they will be empty if they are not allocated to individuals. Liu Fangping doesn''t talk much, but he definitely doesn''t have an expressive ability disorder. He''s just reluctant to speak in most cases: Of course, Professor Yan will not trick us. Besides, when he was working on the die forging press, he had already been in contact with Mr. Chang. He is definitely a person with a high enough level..." at the same time. Paris, France. After lunch time, Serge Dassault and Charles Edelsteiner were walking on the path inside the group. Charlie, has the news that we are planning to cooperate with the Chinese been released? ?Dassault looked at a sycamore tree beside the road and asked suddenly. According to your request, the cooperation was negotiated under the name of a civilian project. Two days ago, I gave some inside information to a reporter from the New York Times through my acquaintances in the media. ?Ed Steiner nodded and replied In fact, Wen Kangjians previous worries were justified. ? Serge Dassaults wishful thinking is indeed to try to make General Electric feel some sense of crisis by releasing a signal of cooperation with China, thereby restoring the relationship between the two parties... Ahem Cooperative relationship. In fact, according to his initial plan, he only needed to have some simple written exchanges with China, and there was no need to enter formal negotiations at all. ?It is also for this reason that he chose to use the loophole-filled method of a business jet cooperation project as a cover Because I had no intention of hiding it in the first place. ? Dassault even wanted to do it with great fanfare and let the whole world know about it. I just thought it was a bit too fake to do it this way, so I made it a little more subtle. But it was also reported by the media as soon as the two parties started to contact each other. So, what is the reaction from the United States? Has it expressed its intention to continue to cooperate with Snecma? ?Dassault asked with a confident look. But facts have proven that the literature of spoiled wives is not necessary. If you have no intention of actually flipping the table, don''t threaten the other party by flipping the table. After hearing his bosss question, Ed Steiner shook his head with a complex expression. ?Dassault frowned upon hearing this. But apparently not yet aware of the seriousness of the matter: They refused? ?Ed Steiner shook his head again, and then spoke with a slightly bitter tone: Actuallyso far, we have not received any feedback, and the United States seems to have simply ignored the news ?Dassaults expression froze on his face. How could ?Ed Steiner did not answer. The air fell silent for a moment. Obviously, this is not a question with a possible answer. For a moment, Serge Dassault felt that his mind was a little confused. ?In his view, even if GE cannot directly change its mind, it can at least bring the other party back to the negotiating table. Perhaps at the very least, the latest F414 engine can also be made available for production Rafale. ?In this way, although Snecma will suffer some losses, the impact on Dassault will be minimized Re-matching the new engine is bound to take some time, but it will always allow the Rafale fighter jets to be delivered to the French army on time in name. Ahead of the J-10 and EF2000. ?But against all odds, I didnt expect that the other side of the Atlantic didnt even pay attention to him. This is rather stiff. Mr. Dassault. After the awkward atmosphere lasted for a while, Ed Steiner finally spoke: Actually, in order to prevent this from happening, I specifically asked Oliver Willy to maintain contact with the Chinese side. So, its probably not too late to go back and find the Chinese people now (End of this chapter) Chapter 785 Controversy caused by Torch Lab (counting yesterday) Chapter 785: Controversy caused by Torch Laboratory (counting yesterday) Facing Ed Steiners request, Dassaults mind started a battle between heaven and man. ?The reason why he agreed quite easily last time was because at that time he wanted to use the name of cooperation with China to make GM change its mind, and there was no psychological burden. But now I really want to cooperate with China... ?This decision is still relatively difficult to make. ?Although the main body of the cooperation is definitely the Snecma Group, for a joint R&D project like Rafale, Dassault is bound to be affected. For example, the most direct one. ? Serge Dassault has always hoped to make the Rafale fighter jet the second export business card after the Mirage 2000. Even after the Rafale A prototype flew for the first time, he had already started contacting potential buyers. But if the mass-produced aircraft uses an aero engine with Chinese technology, customers will inevitably have concerns before purchasing. On the one hand, China was not famous for its aviation industry in the past. Even though the situation has changed in recent years, aviation engines and complete aircraft are two different fields. It is difficult not to worry about the power of Rafale fighter jets. reliability. ?Of course, the technical aspect is actually secondary. The more critical issue is that the export of weapons and equipment is different from ordinary civilian products, and involves quite complex interests. Introducing a fighter jet with Chinese origin into the main equipment of the air force is a risky matter for many countries, especially NATO members Although judging from the current situation, this risk is only potential. But it is enough to become a bargaining chip for some countries to abandon Rafale and switch to F16 or EF2000. But if you dont cooperate ?Then dont say it out loud, we wont even be able to produce a mass-produced machine in a short period of time. "well" ?Dassault, who was in a state of hesitation, sighed. ?Things have developed to this point. In the final analysis, Snecma Groups technology route choices in the past few decades have been too conservative, or in other words, there is inertia. They had always hoped to improve performance by tapping into the potential of single-rotor engines. It was not until they found that this road was completely unworkable that they hurriedly turned to a dual-rotor solution by borrowing General Electric''s design. As a result, they had almost no experience base. Painting a gourd and painting a scoop has become a dog, and finally reached this point. I cant figure it out. ?Dassault put his hands behind his back and continued walking along the path, while Ed Steiner quickly followed behind. Thats it for the Americans, Russians and British. Their accumulation of aviation technology is richer than ours, so its understandable that they can produce aviation engines with better performance. But why do Chinese people He spoke very quickly, and his mood was obviously fluctuating: "Although Snecma Group has relatively little technology accumulation in the field of dual-rotor engines, it is, after all, one of the major shareholders of CFM International. It should have developed its first mass-produced turbojet engine just three years ago. Is China stronger? And, as you said last time, China has approached us in the past to seek technical information about the CFM56 core machine. It has been a little more than ten years since we were fully prepared..." ?Ed Steiner, who was half a step behind, did not answer the call. Because, its not just Dassault who doesnt understand. He doesnt understand either. In fact, during this period, Ed Steiner even compiled some of Chinas representative achievements in the aviation field in recent years. I can only say that it is outrageous. An outsider might be blinded by the large number of cooperation projects with Russia, thinking that China may have reached some kind of agreement with the Russians and thus obtained a huge amount of Soviet technological heritage. ?However, Ed Steiner can see that although these Russian-related models and technologies are numerous, they are isolated from each other. Instead, it is a project mainly focused on China itself, which can form a relatively complete aviation industry system. There are indeed some links, even key links, imported from abroad. But there is no doubt that the entire system itself belongs to the Chinese people themselves. ?This is completely consistent with the performance of a late-developing country in the process of technological catch-up. The French aviation industry after World War II also developed step by step in this way. So, it doesnt seem like there is anything fishy in it. The only problem is. Too fast. The progress of the Chinese people is really too fast. Especially in the last four to five years, we can almost catch up with the progress of other countries in the past 20 to 30 years. ?This makes people feel very divided. ?However, as a technician, Ed Steiner knows that there are some things that cannot be understood by his own analysis. The rapid development of the Chinese people has become an established fact. It is useless if you do not agree with it. Its better to take advantage of this. Anyway, there is not much conflict of interest between these two countries, which are nearly 10,000 kilometers apart. ?Therefore, looking at the indecisive boss around him, Ed Steiner decided to give the opponent a boost of strength: Mr. Dassault, in fact, before us, Eurocopter had already cooperated with China to design the main rotor and transmission mechanism of the NH90 helicopter. His angle is very tricky. It did not say that we have no other way to go. This sounds depressing at first, and at least it will make the other person feel worse. Secondly, Dassault must also know about this matter. Its just that I cant get over the hurdle in my heart. The best way to help him get there is to tell him. Eurocopter did it too. ??And it is also a military model. So, there is no need to feel any psychological burden. Sure enough, Dassault, who had been walking forward with his head buried in his chest, suddenly stopped and looked at Ed Steiner with astonished eyes. ?That look contained at least two meanings. The first thing is, Is there such a thing?; The second is "How do you know this kind of thing?" Although they are both aviation companies, fixed-wing and helicopters are fundamentally different apart from the fact that they can both fly. Therefore, the relationship between Dassault and Eurocopter is limited to "friends" in the literal sense. I have a classmate in college who is responsible for the NH90 project at Eurocopter Group. Dassault didnt need to speak, Ed Steiner answered directly: At the beginning, their project was in a deadlock due to technical problems, and China was able to solve it...well...its similar to our situation. In fact, the situation of NH90 is much more complicated. In addition to technical flaws, there are also disputes that occurred during the multi-national cooperation process. But now we have to convince Dassault, so we naturally have to focus on the key points. So dont other countries participating in the NH90 and preparing to purchase this model have any objections? Why do you have opinions? ?Ed Steiner shrugged: On paper, 100% of NH90s technology and components come from NATO member states. Looking at Dassault, who still looked puzzled, he continued: Actually, there are many ways to whitewash technology from China into our own. Of course, this requires cooperation from China, but I think as long as we can sit down and talk, there is nothing that cannot be agreed upon. Different from Dassault, Ed Steiner was not only a technician, but also a ruthless professional manager. This means that he is rarely subject to unnecessary emotional disturbance. Of course, it is also easier to be persuaded by interests. ?Dassault rolled his eyes. Although he didn''t give an answer right away, his heart was obviously relaxed. The two stood facing each other like this for a long time. Finally, Dassault nodded slightly: Just talk to them as you said. However, dont act too anxious and try to get better cooperation conditions... Hearing this, Ed Steiner finally smiled: Of course, I promise. ?The restless October has finally passed. ??Although Dassault has agreed to contact the Chinese side, this kind of big job is not like buying vegetables in the wet market and haggling over the price in a few minutes. ?The conditions initially proposed by the two sides are too far apart, and it is clear that it will take several back and forths before meaningful negotiations can begin. Hence, Chang Haonans main focus during this period is still on the Torch Laboratory and the mid-term inspection of the turbofan 10 installation test. Relatively speaking, it is a less strenuous and even somewhat boring time. ?It''s a pity that the tree wants to be quiet but the wind doesn''t stop. ?One day in early November, Chang Haonan was testing a manifold learning algorithm improved by Yao Mengna in the office as usual, when he saw Liu Chenchen appearing at the door of his office with an angry look on his face. Teacher Liu? ??Chang Haonan watched the other party wandering outside for several times, and finally couldn''t help but take the initiative to speak: If you have anything, please come in and talk? ?Liu Chenchen is the administrative secretary of the laboratory, but in the school, anyone with an official position can be called a teacher. So in front of others, it is better to call it this way. Professor Chang, this is too much! Liu Chenchens eyebrows stood upright, and Chang Haonan even worried that the tiles on the floor would be broken by her high heels when she walked in... After arriving at the desk, the former placed a newspaper in front of Chang Haonan, and then turned it 180. Lets discuss why China cannot produce world-class scientific resultsstarting with a laboratory that was established out of the ordinary ?Chang Haonan directly read out the title of the report. ??Although I havent read carefully what is written below, judging from Liu Chenchens angry expression just now, this is obviously talking about Torch Laboratory... So...this is talking about us? ?Chang Haonan just felt like laughing. "certainly!" Liu Chenchen couldn''t laugh it off. She joined such a promising research group right after graduation, when the sense of belonging and collective honor was at its peak, plus... Although it is a bit strange to say this, the boss of the research group is her former student when she was a counselor. In short, she was angrier than she was when she was scolded. ?Chang Haonan looked down slightly and read the content at a glance. It was pretty much what he expected. It is a public document that is very in line with the characteristics of this era. ??Using his school-enterprise joint laboratory with special policies as a pretext to attack the entire social operating system. They especially criticized the Torch Laboratorys loopholes in funding management, arguing that it was a complete waste of public funds and a waste of national funds. They also questioned why it occupied a large amount of funding but could not produce equivalent research and development results. Finally, Beijing Hang University and Torch Group were labeled as causing the loss of state-owned assets. ??The speech is so impassioned that it can even be regarded as an essay. No wonder Liu Chenchen felt red and warm after watching it. However, for Chang Haonan, who has experienced the era of public knowledge on the Internet, the lethality is too low. Can only be regarded as a public intellectual of the Tomb Sect. Even Chang Haonan himself can write a better one... (End of this chapter) Chapter 786 Didnt you hit the muzzle? Chapter 786 Arent you on the receiving end of a gun? Professor Chang, why arent you angry at all? ?Looking at Chang Haonan, who had no expression of anger on his face, Liu Chenchen felt that he couldn''t hold himself any longer, so he immediately put his hands on his hips: This article is aimed at you throughout Chang Haonan couldnt say that I had seen better writing in my previous life, so he could only wave his hand: This article is not directed at me, nor even at Torch Lab. It is just used as a primer. In fact, if the author of this article really knew the situation of Torch Laboratory and Chang Haonan himself, I am afraid he would not dare to touch this porcelain. After all, if they really have the courage, ??The other party obviously only saw some fragments from the announcement issued by Beijing Hang University, and then he imagined a plot of "the director of the laboratory colluded with the school and state-owned enterprises to harm the public and enrich private interests", and wrote a short essay and posted it. In fact, anyone who needs to take a look at Chang Haonans resume on the Torch Labs homepage will know that the content written in this article is completely different from the actual situation. But let alone 1999 when the Internet had not yet spread, even in 2019 in the 5G era, it is impossible for a few people to specifically verify it. ?This is also the key reason why many rumors are obviously of low quality but can spread for a long time. As a person who lived at the turn of the century, Liu Chenchen did not have much idea about this, let alone imagine that the writing and publishing of this type of articles were organized and planned. Some traces can even be found in textbooks. ?She just feels that these rumors cannot be allowed to spread unchecked: But even so, he still discredited our laboratory and Jinghang University! ?Of course, this is similar to Chang Haonans idea. Not angry, does not mean that Chang Haonan is not ready to solve the problem. ?Although debating scriptures cannot directly change the material world, as a person who has experienced it, Chang Haonan knows very well that if it is left unchecked, it will have a relatively large negative impact on the entire society. So, he has been doing what he can to improve the disadvantages of public opinion without affecting his main business. In the past, quality problems were exposed for Japanese brands in Europe. When word-of-mouth declined, Chang Haonan registered the name "Double Tree" several years in advance, and then handed it over to the Science and Technology Commission to take charge of operations. The main content was also a short composition. , is just a short foreign composition, which is equivalent to using magic to fight magic. At least judging from the sales of "Double Tree", the effect should be good - ?The people of this era are more accepting of funny jokes and chicken soup for the soul than Chang Haonan imagined. As for the hidden meaning behind these contents, not many people care. ?But it doesnt matter. The reason why this form works so well is because its influence is subtle. ?For example, in the past two years, Chang Haonan has clearly felt that the level of superstition among the people towards Japanese products has decreased a lot. ?Although it is not entirely the work of a magazine, it at least contributed to it. "I think" Just as Chang Haonan was about to speak, the phone on the corner of his desk suddenly rang. Liu Chenchen was stunned for a moment, then said hello and left the office first. ?However, the call this time was not from the confidential line, but from the outside phone. Hello, hello, Im Chang Haonan. Professor Chang, its me, Tang Lintian. ??The relationship between Principal Tang and Chang Haonan happens to be stuck on a standard line. For those with a higher level of confidentiality than him, all calls with Chang Haonan are confidential. Those with a lower classification level than him cannot get into secret machines at all and can only use outside lines. Tang Lintian himself, in principle, needs to choose according to the situation - the confidential line is a very valuable contact method and needs to be kept open as much as possible. It is impossible for you to use it to talk about irrelevant things or talk on the phone. ?After announcing his identity, there was a moment of silence on the other end of the phone, and then he spoke: "Professor Chang, the school''s publicity department has discovered that there are some rumors about the Torch Laboratory not meeting the implementation conditions. Now it has sent people to find a way to deal with it. I will let people explain the details later." Do you think this is a coincidence? Principal Tang, I think I know what you are talking about. Chang Haonan turned his attention back to the newspaper on his desk: Lets talk about why China cannot produce world-class scientific results. Thats the article in the Nancheng News, right? Hearing that his voice was not as angry as expected, but rather smiling, Tang Lintian on the other side of the phone was stunned for a moment, and then asked cautiously and tentatively: Then whatProfessor Chang, you alsosaw it? Chang Haonan smiled angrily because he was obviously worried. "Well... the administrative secretary of our laboratory just showed me this newspaper." Chang Haonan''s mentality is quite stable. Professor Chang, dont worry, I have explained the situation to my superior unit and will notify them of the withdrawal of the manuscript as soon as possible ??Tang Lintian''s actions were indeed very fast, but his solution was a bit blunt. ??This time is not an online media. In the era of paper media, what is the use of just asking people to retract articles? Therefore, Chang Haonan quickly stopped: "Hey, don''t, don''t, don''t, don''t This was written in the newspaper, and it has been published. Even if the article is withdrawn, what should be seen has already been seen. On the contrary, it makes people feel that there is no three hundred taels of silver here." As the famous social activist Humphrey Appleby said. Only official denials are credible. For the majority of the melon-eaters, it may have been just for fun at first, but if they see another retraction statement, the topic will become full. Tang Lintian was stunned after hearing this, and obviously realized that what Chang Haonan said was reasonable: "But... you can''t refuse to respond, right? If this matter gets fermented, it will have a negative impact on the school, the laboratory, and Professor Chang yourself." The response must be a response. Chang Haonan said in a deep voice: We must pressure them from their superiors to retract the article. Moreover, they must not only retract the article, but also require the other party to issue a public apology. "That" Tang Lintian was interrupted just as he finished speaking: But not now. Hearing what Chang Haonan said, Tang Lintian, who was originally upset, suddenly calmed down ?Every time the former expresses his position like this, he already has a perfect plan in mind. Therefore, he did not answer the call and just waited for Chang Haonan''s further explanation. Didnt that article say that we cant produce equivalent R&D results? ?Chang Haonan smiled and glanced at the date in the lower right corner of the computer screen: Exactly, if we count the days, our laboratory should be able to come up with some influential results before long... If it were normal, this matter would actually not be easy to solve. ?Although not all Torch Laboratory projects are classified, most of the results are difficult to disclose either due to confidentiality or commercial reasons. But it was just a coincidence. ?Chang Haonans paper proving two lemmas in the field of differential geometry will be officially published later this month. The first completion unit is the Torch Laboratory. ? And "Annals of Mathematics" still has some status in the world of theoretical mathematics... Since Chang Haonan published the paper quietly, Tang Lintian didn''t know that he had done a big job at this time. ? It''s just that for the latter, if Chang Haonan can express "influential" results, I''m afraid there will be a lot of movement. Therefore, feel at ease completely: "Then... I will stay put for now and wait until Professor Chang''s results come out." Theres one more thing, Principal Tang. Since someone happened to bump into the muzzle of his gun, Chang Haonan was not prepared to let him go easily: "You should find someone to write an article. The style should be similar to the article in the newspaper. The theme should be to criticize the Nancheng News for its fraud and fraud. It completely ignores the objectivity of the media. In short, it should be as satirical as possible. After the other side withdraws the article, it will be published. ! (End of this chapter) Chapter 787 Make big news Chapter 787: Make big news In fact, the official release of the sixth issue of the Annual Journal of Mathematics in 1999 was slightly earlier than the end of November expected by Chang Haonan. Just after the middle of the month, he received an email stating that his paper had been published and had been selected to be included on the back cover of this issue of the journal. ?Sent along with the email was an invitation letter from Mikael Lagerstedt with basically the same theme as last time. ??However, the content is much richer. The other party said that the annual mathematics conference at the end of next month, because it happens to be at the junction of the millennium, is regarded as "a summary of the previous millennium and an outlook for the next millennium", so it will bring together many people from the previous era. and famous mathematicians of the era. Among them, naturally, they also include Richard Hamilton, Isadore Singer, Michael Atiyah, Yau Shing-tung and other big names in the field of differential geometry. ?Furthermore, Lagerstedt also said that the annual meeting will not involve topics such as award selection and project sponsorship, but will only involve pure academic exchanges, as well as eating and drinking. ?This basically implies that although the annual meeting is hosted by Princeton, it will not involve disputes between the interests of different schools In foreign academic circles, there are also mountains. ??And because of their high academic level and longer history, the relationship between mountains is even more complicated than in China. ??Many of the love and hatred of horse-catching people can even write a book on their own. ?It''s just that people who are below a certain level cannot even enter other people''s circles, and of course they can''t feel it from the outside. ?Of course, in the final analysis, any mountain is for fame and money. So, no awards or sponsorships are involved, so there is less trouble. Chang Haonan smiled helplessly while looking at this lengthy invitation letter. ?The other party probably regarded him as an aloof and strange person like Perelman. ??I thought the reason I didnt reply to the email last time was because I didnt want to get involved in complicated school struggles. It should be said that as a senior editor, my level is still high. Its a pity that I guessed in the wrong direction. ?The reason why he did not go to the meeting was simply because it was inconvenient for him to go abroad due to his current status, and it had nothing to do with being indifferent to fame and fortune. ??If the annual meeting is held in China, he will definitely go there more actively than anyone else... ?While thinking this, Chang Haonan copied the link attached to the email into the address bar of the browser ?In this era, the technology to directly identify links in text format still does not exist. Not surprisingly, it is the reading page of the current issue of the journal. In the first few years of the digital version of the Annual Journal of Mathematics, it provided free reading and downloading. Later, it was discovered that no one would buy the physical version, so it became a paid subscription. It has to be said that as the most influential journal in the field of theoretical mathematics, it is probably not one of them. In addition to Princeton Universitys reputation in the field of mathematics itself, the publishing house also has excellent skills in typesetting and proofreading. Even the author Chang Haonan looks much more comfortable than the original manuscript he wrote in Word. By the way, he also took a look at other articles published at the same time as his own. A pair of orthogonal complete sets of incomplete Latin squares The unique continuation of the wave equation on the hyperplane Mathematical research on multiphase flow under shear through order parameter formulas and asymptotic analysis It must be admitted that in terms of theoretical science, China does still have a long way to go. Except for Chang Haonan, there is no other author from China. Even if there are some Chinese names among them, if you look at the institutions, they are from the United States or Europe. However, as far as the content of this issue of the journal is concerned, there are not many highlights except Chang Haonans article. On the one hand, it is impossible to have so many earth-shattering results. Even in the world''s top journals, many articles in them are inevitably filled with water. On the other hand, as the last issue in 1999, almost half of the space was reserved for review-type articles signed by various big names. It can also be regarded as a slogan that fits the vision for the next millennium at the banquet next month. One of the articles even mentioned his results. ?The author is none other than Richard Hamilton Considering that the two were actually published at the same time, it is obvious that the other party is also one of the reviewers... ?Chang Haonan shook his head, closed the web page, and then looked at the newspaper he had kept next to him these days. Nancheng Daily. The reason why he asked Tang Lintian to stand still before was because he was waiting for this opportunity. Now, the time is clearly ripe. ?At this moment, a notification sound suddenly sounded on his mailbox interface. A new email. ? Judging from the website address, it should be from Yenching University. Tian Gang? ?Chang Haonan was stunned for a moment, and then remembered that he and the other party had met once at the dinner after the National Day. It is a side relationship in the physical sense. Only said a few words in total, not even an acquaintance. In the text, Tian Gang first congratulated Chang Haonan for his article being published in the Annual Journal of Mathematics, and said that his "Chang''s Lemma", or "Millennium Lemma" can be ranked as the most popular in the field of differential geometry in the past five years. An important achievement, and if you look at the domestic perspective, it can be regarded as the most important achievement in the entire field of mathematics since the 1990s... A rainbow fart wrote two long paragraphs, and then got to the point. He said that Yenching University has plans to establish a mathematics research center, and is currently inviting world-renowned scholars in the field of mathematics to give lectures. He hopes that Chang Haonan can accept the invitation and go. Give a lecture on the field of differential geometry. Chang Haonan was not surprised by this kind of invitation. Especially the fact that the other party mentioned "Chang''s Lemma" in the email shows that this title has gained some recognition at least within the international mathematics community. It has been a long time since the Chinese local mathematics community had such a representative achievement. Considering that the author is not from mathematics or even science, this article is undoubtedly equivalent to a blockbuster. However, the paper has just been published for a few hours, and I can finish reading the article, write such a long email, and send it to him on the same day... Its really unlikely. Therefore, Chang Haonan guessed that Tian Gang was probably one of the reviewers, and these things had been prepared long ago. Just waiting for this day. ?This can also explain why the other party wanted to come up and talk to him at the National Day dinner rather bluntly. ?However, Chang Haonan was still prepared to decline the invitation in the email. ??The Mathematics Center of Yenching University, if it continues to develop according to the original timeline, will involve a series of useless talk. There is no need to get involved. After thinking for a moment, he also replied to an email. First, he praised the other party according to the terms published by Google, and then said that he was not a professional mathematician and had projects to do. The paper was just some "accidental discoveries" during the research process, so there was really nothing to do in a short time. I have my energy to take care of other things, but I promise that I will take the stage to introduce my research results at the "appropriate time"... Then, click Send. At the same time, the office of the president of Beijing Hang University. ??Tang Lintian answered a call from the Chinese Academy of Sciences. Principal Tang, congratulations on having a great talent! Yuan Xiangyas voice rang on the other side of the phone: It took less than half a year to produce such a big result without any fanfare. It makes those of us who specialize in mathematics feel a little ashamed. It was a round of flattery that immediately confused Tang Lintian. ?He raised his head slightly and spent a few seconds recalling it. He was very sure that he had not heard of any earth-shattering achievements in the school recently. Professor Yuan, what are you talking about? ?Tang Lintian asked somewhat puzzledly. They are obviously not on the same channel. Principal Tang, you dont have to hide me when youre with me, right? Yuan Xiangya said in a half-joking tone: During the defense of his doctoral degree, wasnt I still a member of the review committee? Is itChang Haonan, Professor Chang? He asked tentatively. Until this moment, Tang Lincai vaguely guessed that the other party should be talking about Chang Haonan. After all, the latter promised him just last week that there would be big results in the near future. Its just that I didnt expect that this recently would be so close. Who else could it be? At this point, Yuan Xiangya probably realized that Tang Lintian seemed to really not know the situation, so he explained: "A paper by Professor Chang was published in the just-released December 1999 Annual Journal of Mathematics, and in a review in the same issue, the leader of differential geometry, Professor Richard Hamilton, also directly used "Chang''s lemma" was used to name the two conjectures he proved." "Old Tang, although you are not a person in the field of mathematics, you should be able to think of the significance of a result named directly after him..." After hearing this, Tang Lintians hand holding the receiver trembled slightly and he opened his mouth, but no words came out for a long time. Changs Lemma You should know that Yuan Xiangya also has "Yuan''s Lemma" named after him. The latter was able to become a "half-step academician", that is, a second-level professor, at the age of 39, precisely because of this achievement. ? And Chang Haonans first step into the world of mathematics actually reached this level... (End of this chapter) Chapter 788 Criticize them! Chapter 788 Criticize them! ?After ending the call with Yuan Yaxiang, Tang Lintian quickly searched online for the Annual Journal of Mathematics. As an engineering professor who has never dealt with theoretical mathematics in the past, although the latter has heard of the name of this journal for the first time, his previous understanding of it was limited to "very awesome". As for how awesome it is, I have no idea. After all, the School of Science of Beijing Airlines could only be regarded as an affiliate of the School of Aeronautical Science and Engineering in the past. The original purpose of its establishment was to solve some mathematical and physical problems involved in aeronautical science, so it was more focused on the application level. Later, as the research on aviation science itself gradually deepened, the topics of the two colleges even overlapped to a large extent. ? Even if there are occasional theoretical achievements, they are mainly related to the field of mechanics. As for theoretical mathematics ?Havent even thought about it. Im off to go Looking at the introduction to the Annual Journal of Mathematics and the Princeton School that appeared on the computer screen, Tang Lintian gently touched his chin and let out a heartfelt sigh: Awesome ?He now somewhat understands why Yuan Xiangya called him with great fanfare to announce the good news. Its really worth it. ??Tang Lintian took a deep breath, calmed down his a little accelerated heartbeat, and leaned back on the chair. ?For this paper, if he is willing, he can pull Chang Haonan out and establish a separate school of mathematical sciences. Then at least among the top five in the country No, top three. After all, as we all know, there are usually more than three in the top three in the country. As for the top five in the country, we have to rush for 20. ?Of course, this idea flashed in Tang Lintian''s mind. Chang Haonans role is very big. ?Perhaps if he enters the world of mathematics, he can do a lot. But first of all, you still have to respect your own ideas. Secondly, at least now is not the best time. At least as far as the current situation is concerned, even a few more theorems named after Chinese people will not be enough to allow Chang Haonan to shine in the field of application for a few more years. Its just ??Tang Lintian sat up straight suddenly. He figured out what Chang Haonan meant when he asked him to stand still that day... It happens to be this time as well. The phone on the table rang again. Principal Tang, its me, Chang Haonan. On the other side, Chang Haonan contacted Tang Lintian just after replying to Tian Gang''s email. Professor Chang, congratulations! ??Tang Lintian didnt talk nonsense, he just said congratulations: This result is of great significance to you personally and to our school! After Chang Haonan made the call, he originally thought of announcing the good news to Tang Lintian first, but the latter acted as if he had known about it for a long time, which made him speechless. He thought to himself: Why are everyone so outrageous? They seem to be better than him. The author knows earlier that the paper has been published. Actually, this is what he doesnt know. For those who specialize in theoretical mathematics, it is not uncommon for the last issue of the Annual Journal of Mathematics to be released in advance every year. Even the dates advanced in recent years are the same. So, by this day, they will basically start paying attention to the content of the journal early in the morning. The name of a Chinese person is quite conspicuous in it, and can basically be seen at a glance. By the time Chang Haonan opened his mailbox and saw the notification email, people like Yuan Xiangya had already been reading the paper or discussing it. Tang Lintian on the other side of the phone did not wait for Chang Haonan to reply. He just paused for a moment and then continued: Next, tell me, how exactly do you need the schools cooperation? This is obviously referring to the Nancheng News report. Chang Haonan happened to make this call for the same purpose. Actuallythere is no need to do anything special. He replied: "Considering that you already know about it, I estimate that this paper should have been widely spread, so it should not take a few days for the official media to come to us for interviews and reports." "Then...the article I asked you to find someone to write last time, criticizing the Nancheng Daily, should be ready, right?" "certainly." ?Tang Lintian gave an affirmative answer. "That''s good." Chang Haonan nodded: After the report comes out, you can follow your original plan, pressure your superiors to withdraw the article, and then issue an apology statement. Actually, the operations are the same as before. Its just that Chang Haonan changed the order. This involves a preconceived issue. At the end of the 1990s, Nancheng Daily still had a large readership. ??If after that report came out, a retraction and an apology statement came out of the blue within two days, then the first thing most people would think of would be - The report has been suppressed. ?According to Chang Haonan''s understanding of the Nancheng Newspaper, the other party must be very weird in the statement. This will only have the opposite effect. By the time public opinion ferments, even if the results are publicized later, the image that can be restored will be limited. ??But if the melon-eaters read that report and the next relevant news they saw was the promotion of Changs Lemma, the situation would be completely different. Considering that there was only a little more than a week between these two events, at this time, the clown became the Nancheng News. Everything was as Chang Haonan predicted. CCTV acted very quickly. After all, this is not the first time they have interviewed Chang Haonan. After receiving the May 4th Youth Medal, and after being gifted with the inscription "The merits will last forever" after fighting floods and rescue operations, I gave him exclusive interviews. ?Especially for the second time, I had the opportunity to appear in several CCTV news programs every day for a week. ?Of course, the situation at that time was quite special. The news was almost constantly reporting on disasters in various places, as well as flood relief and rescue activities. It can be regarded as some exposure bonus. This time, although the specifications are slightly lower, it is still a three-minute column on the 7pm news. Very exaggerated. Following the news report was an editorial from the China Youth Daily. ?Of course, it is impossible for national media to openly criticize people in the streets. ??Only implicitly criticized Nancheng Dailys previous false reports on the Torch Laboratory. ?The real murderer came from Chang Haonans old employer, the Commission of Science, Technology and Industry for National Defense. In the December issue of "Doubletree" published in late November, the first article was a comment on this matter. As a "folk" and "entertainment" magazine, there is no concern about face. directly put together the picture of the Nancheng News article, the first page of Chang Haonan''s paper, and the CCTV report on the Torch Laboratory. Then he gave a title with full attack power Who is wasting money? The question mark at the end is particularly big. The content is also very targeted. ??The author said that although Nancheng News and Beijing Hang University are different entities, in the final analysis, they both feed on the financial system. There should be no distinction between high and low, they just perform their respective duties in the social division of labor. Now, Beijing Hang University and other parties have proven that after they gave the Torch Laboratory special policies, it took less than half a year to produce blockbuster results recognized by the international mathematics community. As a scientific research institution, it is obviously possible It is said that the task was exceeded. ??But your Nancheng Daily carried out false reports at the most critical stage before the publication of such a scientific research result that brought glory to the country. As a media, it seems to be even more incompetent... (End of this chapter) Chapter 789 temporary victory Chapter 789 Temporary Victory Compared with Nancheng News, which was founded in 1997, Doubletree was founded in the first half of 1998 by Chang Haonan on the suggestion of Du Yishan in order to publicize the quality crisis of Japanese companies. It has only been more than a year now, and it is still relatively young. . However, after all, it is positioned as an abstract journal. In other words, the content covers everything from national events, astronomy, geography, to neighborhood gossip. Therefore, the audience range is much wider than that of Nandu Daily, which only reports social news. Therefore, the readership is not the same. No disparity. Whats more, Chang Haonans current wave also includes China Youth Daily and the Central Media Station. ?The 7pm news has an influence that almost no one can match in this era when television is the main entertainment method. Therefore, in fact, from the moment Chang Haonan decided to launch a counterattack, the outcome was already doomed. ?Yangcheng, in the office of Nancheng Press and Media Group. Senior editor and reporter Meng Yong looked at a magazine in front of him with his eyelids twitching. "Double Forest". Everything started nearly half a month ago. ??An intern editor below said that he found a very breaking news that can expose the widespread corruption in academia in China. ??He briefly checked the manuscript written by the other party and found that the target was a school-enterprise joint laboratory that had just been established less than half a year ago. It was likely that there was a problem of poor fund management. ?Of course, they definitely dont know whether it exists or not by sitting in an air-conditioned room and thinking about it. But thats not important either. As long as we can find a reason. ?This laboratory is fortunate to be included in the pilot program for industry-university-research cooperation, so the degree of freedom in research projects is greater than that of normal research institutions. Furthermore, the enterprise in the school-enterprise alliance happens to be a state-owned enterprise. Very suitable as a target for their attacks. State-owned enterprises collude with universities inside and outside to embezzle research funds, resulting in a large amount of national funds being consumed but no useful scientific research results being produced... What a perfect topic. As long as you add at the end some stories about how strict management and economy are implemented by some foreign scientific research institutions, and how strict foreign scientists are in self-discipline and indifferent to fame and fortune, it will become an excellent report that "exposes the darkness of society and reflects on real problems." In fact, even Nancheng Daily will at least check the content before publishing in most cases. At least the flaws cannot be seen too quickly. But this time the situation is a little different. First of all, Meng Yong was in urgent need of a report on this theme. The celebration of the 50th anniversary of the founding of the People''s Republic of China at the beginning of last month was very effective, especially the military parade, which greatly improved the self-confidence of the people. There are even voices among the public that believe that sooner or later we can catch up with developed countries like the United Kingdom and the United States. ??This kind of unrealistic idea is something Meng Yong doesn''t want to hear. But directly attacking the National Day commemorations I dont dare. So, he believes that it is necessary to dig out some real news hidden under the surface of prosperity to calm people down. Secondly, the Torch Group has some private disputes with Meng Yong About a year and a half ago, he had just joined Nancheng Daily and wrote an editorial titled "It is not advisable to "launch satellites" under administrative pressure", in which he ridiculed the newly established Equipment Industry Department at that time. As a result, Torch Group entered into some kind of technical cooperation with an Italian company within a few days, and even sold machine tools produced in China to Europe, giving him a slap in the face. ??If that''s all, Meng Yong has long been used to similar things and doesn''t care about being slapped in the face. However, a few days later, he received an anonymous email. is a picture frame. It contained his editorial and a report on the success of the Torch-C.B. Ferrari Group in producing top-notch machine tools. This is a naked provocation. ?Meng Yong smashed the photo frame on the spot and threw it out. Just kidding, he is a symbol of the fourth estate of the media. ? Even if there were some reports in the past that were later proven to be false, few people would know about it when the heat has long passed. Only he provokes others, no one has ever dared to provoke him. ?Hence, he has been waiting for an opportunity to take revenge on the opponent. And this time is obviously a good opportunity. In fact, from the perspective of hindsight, even if Meng Yong was careful, it would not be of much use. ??Before Chang Haonan''s paper was published in a journal, even Tang Lintian didn''t know there was such a thing. Unless outsiders can directly contact Princeton Press, Richard Hamilton, or at least Tian Gang, it is impossible for outsiders to predict such a coincidence. In short, Meng Yong only polished it a little and almost couldnt wait to approve the report for publication. At the beginning, it really aroused a good response. So much so that he awarded the intern editor a bonus of 500 yuan. However, the good times did not last long. Just over a week has passed, and even before the topic caused by this report has completely cooled down, Torch Lab suddenly came up with a result. ??Although Meng Yong knows nothing about mathematics, judging from the specifications reported by the central media, he seems to be quite powerful... This is very embarrassing.? ? ? ? It would be okay if the situation turned around a few months later and everyone forgot about their report. But now they are stuck at this point in time, which makes them become clowns in Nancheng. Not to mention the subsequent unnamed criticism from China Youth Daily and the direct humiliation from DoubleTree Magazine. ?That three-in-one picture is so full of contrasts that it is as lethal as the photo frame from back then. And this time it is still public. ?Several times, Meng Yong wanted to tear up the magazine in his hand... ?At this moment, the phone in his office suddenly rang. Meng Yong picked up the answer impatiently and roared into the receiver: "What''s up?" As a result, a deep voice came from the other side of the phone; Its me. Meng Yong immediately shrank his eggs: Ahits Editor-in-Chief Feng. Your order ?The other party obviously has no time to care about his attitude: Meng Yong, the superior authorities are very dissatisfied with your publication this time and require us to immediately issue a statement retracting the article and apologizing, and also come up with a proper solution. Its up to you to handle this matter. In fact, if the system is mixed for a long time, you should be able to hear the implication of this sentence, which means that this matter has been determined. ? And "proper resolution" does not refer to the matter, but to the specific responsible person. ??But for a media of this nature, Nancheng Daily, only a few senior executives are on staff. ?Meng Yong is obviously not among them. Therefore, he thought that things could still turn around, so he spoke out the "remedial measures" that he had been thinking about for a long time: Editor-in-Chief Feng, can you consider starting from the results of their publicity, such as questioning the value of that paper, or bringing some rhythm in the direction of academic continuity? Editor-in-Chief Feng on the other side of the phone laughed angrily at his unbridled thinking: Their paper was published in the Annals of Mathematics, which is a top journal published by the Department of Mathematics of Princeton University in the United States. You can question Beijing Hang University and the Central Media, but do you still dare to question Princeton? Meng Yong suddenly fell silent. ?Although he didnt know what the level of Mathematics Annual was, he had heard of the name of Princeton University. One of the eight Ivy League schools in the United States. For people like them, questioning Americas prestigious schools? Dont even dare to think about it. "That" ?Seeing that Meng Yong still didn''t understand, Editor-in-Chief Feng was a little annoyed and immediately issued an ultimatum: "This matter has caused a big fuss. I don''t care what method you use. In short, you must identify a responsible person for me!" After saying that, he hung up the phone with a bang. ?This statement is already very straightforward. ??If we really want to clarify the person responsible, the first person to bear the brunt is him, the editor-in-chief of the page, and then the editor-in-chief above cannot escape, and the ones above... Then its over. ?Hence, Meng Yong knew that he could only adopt another approach. Fortunately, this report was not written by him. So, just put the main responsibility on the intern editor. Others can only consider it as poor supervision... ?Thinking of this, Meng Yong''s heart that had just been hanging was finally relieved. ?Then, I picked up the copy of "Double Tree", got up and walked towards the editor''s office next door... The processing results quickly reached Chang Haonan''s ears. ??Nancheng News will issue a retraction and apology statement in the next three days of the newspaper. The author who wrote the news has also been fired from the publishing house. ?Of course, he could also guess that the person being dealt with was just a scapegoat. The real manipulator behind the scenes cannot possibly fall because of such an incident. After all, some countries have been cultivating rebels for more than ten or twenty years. It is more than just a Nancheng newspaper. At least, compared to the previous results of similar incidents that resulted in three drinks of fine for drinking, this time it is good to seize the opportunity of the opponent hitting the gun and minimize the reputation of Nancheng News in the hearts of the melon-eaters. result. ?Chang Haonan knows very well that the struggle against internal and external enemies is a protracted process. It is impossible to accomplish all the results in one battle. Besides, for him, there are already more important things to focus on - The J-11B fighter jet equipped with a mass-produced turbofan 10A engine is about to make its first flight. (End of this chapter) Chapter 790 J-11B Chapter 790 J-11B The progress of the J-11B on this timeline can be said to be very smooth. In May 1999, exactly half a year ago, Chang Haonans heavy-duty die forging press research team forged the first domestic bulkhead for the new J-11B airframe during the trial production process as a tribute to the National Day. In the following three months, various parts of the two prototypes 01 and 02 were produced, including two batch 00 (trial production batch) turbofans 10A delivered in mass production standards, and the new turbofan 10A provided by Dianke 14 1493 radars were all sent to the 112 Factory one after another. ?The original plan of the factory was to try to get the aircraft off the assembly line before the National Day, and also to present a 50th anniversary gift. But after all, the J-11B uses a lot of new processes and technologies. Considering that the time is a bit tight, in order to ensure that everything is foolproof and avoid haste and waste, in the end we did not meet the deadline for this matter. So the offline date will miss the National Day. ?Of course, the gift banners and internal promotional materials were still produced, but the battle was obviously not as good as those projects that were rushed before the National Day. After more than a month of ground testing and confirming that all subsystems can operate normally on the ground, the first flight was launched. ?Chang Haonan took the Challenger 601 as usual and returned to Shengjing, where he had left for almost half a year. Only this time, Chang Haonan saw a yellow-skinned and black-headed fighter jet parked in front of the No. 2 assembly shop when the plane was circling and descending. ?Under his influence, the J-11B on this timeline today has become more obviously different from the old model, but the difference is still not something that can be seen at a glance from a distance. ?The reason why Chang Haonan was so sure was that there was an unusually large group of people surrounding the plane. In most cases, this is a treatment only available to prototypes that fly for the first time. ?After a tight U-turn, Chang Haonan''s plane landed on the familiar yet unfamiliar runway of Beiling Airport. Mr. Chang, welcome to our factory for guidance! He Ming who came up shook hands with Chang Haonan and said half seriously and half jokingly. Chang Haonan''s previous positions have been the general manager of Torch Group and the chief designer of the Turbofan 10 project. The former is equivalent to a second-level sub-unit under the central enterprise, on the same level as Factory 112, not to mention the Turbofan 10, even after passing Upgrading is no longer considered a subsystem of the aircraft, but is only equivalent to Project 11. So at that time, it was equivalent to brother units coming over to cooperate. ?However, Chang Haonan was further promoted later, and the Aviation Power Group has become equal to the Aviation Industry Group. Now when we come to Factory 112, although there is no direct affiliation between the two, there is no problem in saying that we are here. Of course, He Ming was an old acquaintance of Chang Haonan who had worked with Chang Haonan since the August 3rd Project. If he really followed the standards for receiving superiors, the atmosphere would become tense. Chang Haonans trip is to follow the operation of these two turbofan 10A machines on mass production machines. Naturally, it is impossible to talk about these pomps: Mr. He was joking, this time I came here as the chief designer of the Turbofan 10 to coordinate the J-11Bs first flight, so its just the same as before. ?While chatting with the other party, Chang Haonan''s eyes were already focused on the assembly workshop in the distance. Before his rebirth, he also had a lot of dealings with the J-11B. It''s just indirect. For example, testing certain batches of small changes. In fact, when the previous J-11B entered service in 2009, it was already slightly behind the times. After all, the mainstream international fighter models at that time had basically completed the transition from the standard third generation to the third and a half generations. However, for China, the J-11B that has used the turbofan 10 engine since the second batch has truly entered the "third-generation aircraft freedom". Combined with sufficient range and bomb load, it finally allows the Air Force to deal with incoming attacks with ease. Sea and air pressure in several directions. ? It was also roughly from that time that the number of times certain old opponents condemned "unprofessional interceptions" skyrocketed, and the public was finally able to see their own fighters in the news frequently. Therefore, although the technical demonstrator of the J-20 was unveiled in 2011, taking away most of the attention, due to the production capacity of the third-and-a-half-generation and fourth-generation fighters, the J-11B will be classified as a fighter jet until 2020. The absolute main model. Now, Chang Haonan has advanced this time point by a full ten years. ?Even he himself is a little curious about what kind of chain reaction it will trigger. ??The apron of Beiling Airport is not large, and there is no need for a shuttle bus. The group of people walked towards the factory. In addition to the employees of Factory 112, Chang Haonan also saw several technicians from Liming at the scene This is also normal. When a new phone is released, a technical team must be in place to ensure it. Compared with the previous generation, the most obvious difference in the appearance of today''s J-11B is the addition of a pair of 2,000kg heavy-load hardpoints under the inner side of the wings, as well as the addition of an aerial refueling device. With the arrival of several IL-78s and IL-78Ms, the Chinese Air Force finally has a relatively stable aerial refueling capability. Although the range of more than 4,000 kilometers after the replacement is basically enough, the more of this kind of thing is always better. Speaking of which, Mr. He, how is the progress of prototype 02? On the way, Chang Haonan suddenly asked He Ming next to him. Parked at the door of the workshop is the 01 aircraft that is preparing for its first flight. According to custom, the 02 aircraft is a static verification machine without equipment and only equipped with counterweights. Only after completing all, or at least most of the static tests, can the aircraft be allowed to perform relatively severe high-G maneuvers. This is also the part that Chang Haonan is most concerned about The matter of installing the turbofan 10 on the aircraft and flying smoothly has been carried out on two J-11WS verification aircraft for a total of thousands of hours. There is nothing to worry about. But the J-11B has a brand new body, which is fixed to the engine in a different way, and the new body also brings more extreme maneuverability and agility, so the focus is on examining the working conditions under harsh working conditions. Already made. He Mings answer is concise and concise: "When we started construction, we considered that the J-11B is an aircraft that only has changes in structural design, but the aerodynamic design is basically the same. The test flight process must be completely different from that of ordinary models, so we used two aircraft at the same time. Final assembly plan. Or rather, because Unit 02 does not need to install equipment, it even rolled off the production line a few days earlier than Unit 01. This is definitely an unexpected surprise. As He Ming just said, most improved aircraft have aerodynamic adjustments but little structural changes. He was previously worried that static verification would be a hindrance. The static test ?Chang Haonan''s tone was a little anxious. Basically completed. He Ming is also an aviation veteran, so of course he knows what Chang Haonan is concerned about, and pointed in the direction of the workshop door. So, when the J-11B took to the skies for the first time, it was a full-state prototype, and it had already obtained permission to fly in complex working conditions. While talking, the group of people had already reached the vicinity of prototype No. 01. According to convention, several main types of training bombs or counterweight bombs will be carried during test flights. As for the J-11B specifically... Two thunderbolts 12 hung in the middle of the wings. The 612 Research Institute has determined the aerodynamic shape design of the new active ammunition. Although the live ammunition has not been tested yet, they have already sent the sample ammunition. He Ming explained. ??Perak 12 is no different from what Chang Haonan saw in his last life. If nothing else happens, it will form the main air-to-air bomb lineup of the Chinese Air Force together with the PL8 and PL11 for a long time to come. After walking closer, Chang Haonan suddenly discovered that there were actually two huge ammunition mounted in series in the middle of the air intake that was just invisible. Chang Haonan quickly stepped forward and patted the missile''s radome, but soon saw the Russian letters on the surface: Oh...it should be R33. ?The appearance of the two models is exactly the same, so it is not wrong to use a batch of training bombs previously prepared for the Persian F14. ? Thinking about the scene where the other party was eating hot pot and singing, and was suddenly empowered by a huge thunderbolt 13 flying over 200 kilometers away, Chang Haonan couldn''t help but reveal a slightly evil smile... (End of this chapter) Chapter 791 flexible fat man Chapter 791 The Flexible Fat Man In the afternoon of the same day, prototype No. 1121 conducted another long-distance taxiing test. The final first flight was scheduled for the next day. The test pilot was still an old acquaintance of Chang Haonan. Fu Guoxiang. ?Before boarding the plane, Chang Haonan went to the flight briefing room to chat with the other party. It was then discovered that the latter had been promoted to Air Force Colonel at this time. Considering his age, he is definitely making rapid progress. Seemingly noticing Chang Haonans gaze staring at the military rank of training uniforms on the hanger next to him, Fu Guoxiang said while arranging his flying equipment: It is my turn to be promoted this time because I have participated in enough test flights in recent years. I have flown almost half of the new model prototypes and verification aircraft in the army. ?Chang Haonan has never joined the military in his two lifetimes, so this is an area he has never understood, so he asked curiously: I know flight time is very important to pilots, but do you also have assessment criteria based on the number of aircraft types? Of course, Fu Guoxiang nodded and began to fill in the flight plan form while answering: "As for test pilots, those who can be selected are actually experienced veterans. There may not be much difference between 4,000 hours and 3,000 hours, but flying one more type of aircraft or one less type of aircraft often makes a difference. Its completely different. "For example, I have flown the J-8C, J-8IIACT, J-11A, J-11AM in the past four years alone, not to mention earlier times, as well as the F14, which has only been flown by less than five people in the entire army. I have experienced domestically produced, Soviet-made and American-made aircraft. Even in the test pilot industry, there are very few people who have this kind of experience..." When talking about this matter, Fu Guoxiang''s tone was full of pride and excitement. In fact, in terms of model alone, there are quite a few Chinese test pilots who have flown aircraft from three countries. It is only the third type among them, and in most cases it is the legal model. In the 1980s, when relations with the West were good, many pilots participated in training provided by the French Air Force and considered purchasing French aircraft. So, there are many people who have flown Alpha Jet, Mirage 2000 and Mirage F1. But F14, that is a rare thing. In other words, very few Chinese pilots have ever been exposed to variable-sweep wing aircraft. ?At ten o''clock in the morning, Fu Guoxiang got into the cabin of prototype No. 1121 and began the final inspection before takeoff. ?Next to him, a specially modified J-11AS fighter jet is also being prepared to launch under the wait of a group of ground crew. According to the plan, this aircraft will undertake accompanying flight and optical observation missions. This is a shotgun exchange for a cannon... ?In the command center, Chang Haonan put his hands into the sleeves of his cotton-padded coat and said while looking at the busy people and vehicles on the tarmac in the distance. He Ming naturally knew that this sentence referred to the aircraft used as a companion. There is no way, after all, the performance of the test aircraft model is getting better and better, and the old model often cannot keep up with the requirements. He Ming replied: "For example, during the first flight of the J-8C, it was accompanied by a J-6. Not only was the speed slow and the field of view was poor, but the key was that the range was too short. Now that this heavy-duty aircraft is on test flight, it is normal for two or three hours at a time. Damn The old models just cant keep up, and sometimes they have to be replaced. "So we just kept doing it. After the 03 batch of J-11AS, we arranged an extra one and kept it in the factory. In addition to being a companion flight, it can also be used to help our brother units test some new equipment and so on. After all, the aircraft Its big enough and easy to change. With a large number of orders from the Chinese Air Force and two big jobs from the Persian Air Force, Factory 112 is now fully worthy of being wealthy. Furthermore, this kind of investment can also be considered a long-term investment. Although He Ming said that he was "helping" test new equipment. But if you put it into practice, it will definitely not be in vain. Especially in the past year or two, perhaps inspired by the continuous success of several self-funded projects from the J-7F, many factories have begun to figure out how to use their own initiative without military orders and develop some for the international market. product. And these things are obviously impossible to test with air force platforms. Then, Factory 112 can make a fortune from it. Moreover, the harvest can be guaranteed despite droughts and floods ?Its like during the gold rush, the gold diggers may not make money, but the people who make the gold diggers money will definitely get rich. So...has anyone approached you for testing? Chang Haonan asked curiously. ?This question elicited a moment of silence. Well not yet. He Ming sighed first. But he quickly regained his composure: However, I think there will definitely be some in the future. ?While the two were chatting, the No. 1121 aircraft driven by Fu Guoxiang had already moved along the taxiway to the take-off preparation position. Prototype No. 1121 has been inspected and can take off Day after day, the conversations between pilots and towers are almost the same, so dull that they even feel a little boring. But for the staff here, they would rather stay bored like this for their entire careers. After all, test flight work is generally not a good thing if it gets exciting... From the perspective of the tower, Chang Haonan could see that equidistant horizontal lines were drawn on the side of the runway, which should be to visually indicate the takeoff or landing distance of the aircraft. A row of people standing in front of the window almost invariably stared at the rear wheel of No. 1121. Just after crossing the sixth line, the plane lifted off the ground lightly. "good!" ?He Ming held a telescope in one hand and waved his fist in the air with the other hand. This line is 50 meters? ?Chang Haonan probably had a guess. ? ? The structural weight of the new airframe is inherently low, and coupled with the replacement of the original N001 radar, which was earth-shattering in size, the empty weight of the J-11B that actually rolled off the production line is a full 800kg lighter than the old model. Even with the size of a twin-engine heavy fighter, this is not a negligible number. Therefore, the take-off distance will definitely be improved compared to the J-11WS verification aircraft which just changed its engine. Thats right. He Ming nodded. At this time, Unit 1121, which was off the ground, had already begun a nearly vertical climb. ?Of course, the vertical climb itself can be completed even by the old Su-27SK. but. ??This aircraft went from nearly horizontal to its nose vertically upward, but it was extremely fast. Even gave Chang Haonan the feeling of watching the first flight of the J-10. You must know that the latter is an aircraft with a canard layout and is inherently equipped with a nose-up moment. ??In order for the J-11 with a conventional structure to raise its head, it essentially needs to act like a seesaw, allowing negative lift to push the horizontal tail downwards. Taking into account the total lift issue, this efficiency is generally designed to be conservative. The larger the aircraft, the more obvious this situation will be. ?This is why heavy fighter jets like the F15, Su-27, and F14 still feel a bit bulky despite their stronger thrust-to-weight ratio. Because mobility and agility are inherently two levels of performance. After using the new body, agility, the original biggest shortcoming, has obviously been strengthened to a certain extent. Even Fu Guoxiang in the cockpit was shocked by the exaggerated speed of raising his head. Its a bit interesting He stared at the altimeter in front of him until the number on it read 02500, and then leveled the plane. About 20 seconds later, the J-11AS responsible for the accompanying flight also climbed to the same position. Prepare to perform test flight subjects. Fu Guoxiang reported on the radio. According to the test flight plan, the first to be carried out are more than a dozen regular projects, mainly testing the basic flight capabilities of the aircraft. ?However, thanks to the J-11s ultra-long range, there is no need to return immediately after this process. You can continue with other subjects instead. ?Of course, since this is the first flight after a major structural change, it is impossible to directly fly to a particularly high intensity. But there is one item that Fu Guoxiang is very interested in. Half an hour later, Fu Guoxiang, who had completed a circular flight, set up the plane again and returned to the sky above Beiling Airport. ?He leveled the plane completely, then pushed the throttle slightly, gradually accumulating the speed to a high subsonic speed of 950km/h. ?On the oldest model of the Su-27SK, due to structural strength issues, the flight performance in the entire transonic range will be limited to a low level by the flight control. By modifying the flight control, the J-11AM has accurately restricted the speed range to two 50km ranges. ?However, because the hardware has not changed, there are still flaws. However, the second-stage upgraded airframe used by the J-11B/Su-27SM plans to completely eliminate this hidden danger in terms of hardware. After confirming that the speed reached the test standard, Fu Guoxiang jerked the lever to the right - The familiar feeling of spinning around came. The aircraft begins to roll. As a test pilot, Fu Guoxiang can still remain absolutely awake even in this environment. 7.6 seconds. After three consecutive rounds of rolling, Fu Guoxiang looked at the timer. 7.6 seconds, three laps, 1080. A roll rate of almost 140/s. Obviously. Upgrade, effective! (End of this chapter) Chapter 792 Need early warning aircraft Chapter 792 Need for early warning aircraft A roll rate of 140 per second is not an astonishing number if placed within the entire range of a fighter jet. The F16 Mirage 2000, which is far away, and the J-10 and Rafale, which are close by, all far exceed this number. The high ones can even reach more than 300 per second in the net configuration. ?However, it is obvious that these aircraft are designed to be highly agile. For a heavy fighter that is not good at this - in fact, it has always been a shortcoming in the past, this number has improved quite significantly. All of this was recorded by the J-11AS flying slightly behind. 1121, your roll is very fast, and the rolling process is smooth, almost no height loss, very good. Even top test pilots need to take a break between two test flights, so the two planes in the sky are taking advantage of this time to communicate via radio. I feel that this has not reached the limit of the strength of the aircraft body, but I am afraid that flaperons alone cannot provide a higher rolling moment. Fu Guoxiang''s voice was mixed with a slightly rapid breathing: Ill turn 180 first and try increasing the speed by 100. At the same time, as the first rolling test ended, there was a burst of applause inside the tower. Although today''s wireless data transmission efficiency does not support processing high-definition images, by integrating an additional set of antennas and sensors inside the prototype, some basic flight data can be transmitted back to the tower in real time. ?This improvement is actually dispensable for a smooth test flight, but if there is any malfunction or even an accident during the test flight, it may become the key to solving the problem. ?Although this kind of thing has not happened for several years, everyone still has to keep this string in mind. ?Aviation safety, if it is relaxed even a little bit, will most likely lead to a landslide. Mr. He, it seems that your body structure upgrade has been very effective. Chang Haonan looked at the flight parameter curve displayed on the screen in front of him, and his tone became much lighter. Although He Ming next to him looked as calm as water on the surface, the corners of his mouth that were suppressed by the general when he spoke still revealed his inner excitement: We have actually determined the effect of the upgrade of the airframe structure before. Now that we can implement this theoretical effect, we have to thank you, including Mr. Chang, for providing us with new technologies and new processes for Project 11. ?His statement is of course not entirely false. The Su-27SM, which uses the same airframe next door, made its first flight more than half a year ago, verifying the effectiveness of this configuration. In addition to the improvement in structural strength, which relieves the restrictions on roll at the flight control level, more importantly, the length of the flaperon in the new configuration is significantly increased, almost occupying the entire trailing edge of the wing, so it can be more active Participate in rolling. But the design is the design, and the object is the object. ?Otherwise, the planes built by Stan Aeronautics would not be so uncomfortable. ??For China, which has just finished manufacturing the basic model Su-27SK, it is already very rare to be able to have no problems after a major structural and process upgrade. "Actually, Lao Fu feels that there is no problem. In terms of structural strength alone, this aircraft actually has a lot of room for improvement. I heard that Sukhoi is working on installing the AL31FU on a Su-27SM prototype. Let''s try it. Where is the limit? AL31FU is the engine used by the No. 711 technical demonstrator. Compared with the AL31F, it has increased thrust and, more importantly, has thrust vector control (TVC) capabilities. The body of the Flanker is inherently large, and the two engines are installed far away from the central axis, so the moment of inertia is very large. In the past, the main factor that restricted the increase in roll rate was structural strength, so this problem was not very obvious. Now, as Fu Guoxiang said, flaperons alone can no longer meet the requirements. ?However, everything has two sides. ??If a TVC nozzle is installed, the original simple burden can provide rotational torque in one turn. In this case, the engine position is far away from the center line, which actually becomes an advantage.?????Take it step by step. ?Chang Haonan put his hands behind his back: After the Turbofan 10 is completely finalized for production, upgrading TVC capabilities will definitely be put on the agenda. ?Thrust vector is not necessarily of much use. But something is better than nothing. For a high-thrust engine, the thrust-to-weight ratio will not be lost much, and the TVC nozzle will not consume life when it is not working. As long as you use it once, you will earn blood. ?However, the priority can indeed be slightly further back. After all, China has never accumulated technology in this area in the past. It is not difficult to create a rotatable nozzle. What is difficult is to write this thing into the flight control. He Ming didn''t press for it, he just mentioned it in passing, so everyone''s attention quickly returned to the display screen. After the first test, Fu Guoxiang conducted several more tests in the transonic range with steps of 100km/h. ?As the speed increases, the efficiency of the flaperons on the outer wing sections will decrease, so the roll rate will inevitably be affected. However, even at the lowest speed of 1350km/h, it still maintains a level of about 60 per second, which is far higher than before the improvement. It seems that the four simulated mounts have not a great impact on the performance of the aircraft..." He Ming touched his chin and nodded, obviously very satisfied with the test results. This is also the inherent advantage of Su-27. Chang Haonan replied: "When Project 11 was just started, 601 also studied whether to consider setting up a conformal fuel tank between the two engines to further extend the range. However, after later research, it was found that the gain outweighed the loss, so you have not seen this plan. A set of aerial oil receiving devices has been added. The Flanker''s fuselage puts the best hanger position between the two air inlets in the middle of the fuselage. This is a low-pressure area, so the resistance is very small. It is generally chosen to hang large-size ammunition here instead of under the wings. ? ? If four mid-range bombs of the size of R77 or 12 are mounted in parallel, the impact on flight performance will be almost negligible. While the two were talking, the data on the screen also showed that prototype No. 1121 began to slow down and returned to level flight. Todays test content has been completed and its time to return. Mr. Chang, according to the current progress, the basic flight performance test will probably be completed soon. ?He Ming suddenly said: The next step is to wait for the delivery of the PL-12 and PL-13 test bombs, and then conduct the testing of the airborne avionics and fire control systems. Thunderbolt 12 should be fine. The 1493 radar itself can cover the entire envelope. But if we want to test the Thunderbolt 13, we may need an early warning aircraft to provide additional target information at a longer distance. Compared to TVC, which was just mentioned casually, this matter is indeed more important. This is true both for the Pili 13 and the entire Chinese Air Force. The ring project can no longer be counted on. I heard that the Davidian side has even begun to prohibit technicians from the 14th Institute of Electrical Engineering from approaching the aircraft. Chang Haonan put on his coat and walked outside, preparing to greet the triumphant test pilot, and said to He Ming, who was half a step behind: However, the Air Police 200 that made its first flight at the beginning of the year has now been equipped with a real radar array. If no major problems are found in the electronic equipment and data link, it will definitely be able to catch up with your test firing and target shooting. (End of this chapter) Chapter 793 How about letting the French be the guinea pigs? Chapter 793 How about... let the French be guinea pigs? ??Due to the existence of the J-11WS verification aircraft, even the undercover party lurking near Beiling Airport would have a hard time telling with the naked eye that the No. 1121 prototype is a brand new model. Hence, the arrangement of the entire test flight process is relatively low-key. ?Before the celebration banquet in the evening, Chang Haonan led the on-site turbofan 10 support technical team to remove the memory that recorded the working conditions of the aviation engine. Soon, the relevant data was organized into the already designed software program. Look at the data from the deformation sensor on the outside of the ring casing. ?Chang Haonan stood behind the operator, eyes fixed on the computer screen, and asked. Each test flight generates a massive amount of data, and it is impossible to analyze each item in detail. ?For example, the basic working status of the engine has been verified in the previous bench test and installation test. As long as the data is within the normal range and there are no alarms, there is no need to conduct in-depth analysis again. After the turbofan 10 was installed on the J-11B, Chang Haonans main concern was the vibration during flight and the strength of the engine itself In order to adapt to this upgraded body, the fixing method and supporting position of the engine have been changed. According to calculations and Su-27SMs previous testing of the AL31F, these modifications should not affect normal operation. However, the specific degree of adaptation still needs to be seen from the data to know. Soon, the deformation curves of several key points appeared on the computer screen. It should be... much better than expected? Liu Yongquan, who was standing on the other side of the operator, was half-bent, almost putting his face in front of the screen. After all, the shape of the vibration curve is thin, dense and fluctuating, which is really not friendly to a middle-aged person who is a little dazzled. Well at least thats what it looks like in terms of amplitude. The operator nodded and replied: The maximum displacement did not change significantly over time. It only fluctuated slightly during the intermediate flying roll, but it still only reached..." Speaking of this, he enlarged the data curve: It has reached 23% of the allowable deformation corresponding to the G value. Hmm...it seems that the previous strength margin was a bit too much. ?Chang Haonan touched his chin and hesitated. ?In the field of aviation, when it comes to structure-related things, stronger is not always better. Including static damage tests on aircraft, the greater the force it can withstand, the better. Instead, reduce redundancy as much as possible while meeting the design. Because this is the most direct way to lose weight. Compare the waveforms at different locations to see if there is any risk of resonance. ?Chang Haonan''s tone was calm, and no emotion could be heard. ?This time it took a little longer than before. After all, for computers in this era (even supercomputers), the amount of data to be processed is really not small. Fortunately, the final result is no risk. Although there are still greater overload conditions that need to be tested in the future, Chang Haonan still breathed a sigh of relief. Perhaps we could consider doing some work on the receiver wall? Liu Yongquan next to him also stood up straight again and asked Chang Haonan: For example, changing to a thinner shell and adding stiffeners to maintain strength can reduce the weight by at least 100 kilograms. When I was making the design plan before, I remember that there was a group that did research in this area. This is not urgent at the moment. Chang Haonan waved his hand: "Not to mention that our research on the thin-walled structure of the receiver is not sufficient. Even if it is designed, the diamond-shaped ribs will still require large-area precision milling of the receiver after casting. We do not have such a large volume on hand. The milling machine does not have the relevant milling processing technology. The rush to adopt new technologies may affect the mass production progress of the turbofan 10. " In this timeline, China has not purchased the 124 Su-300MKK/MKK2, so there is a huge demand for domestic third-generation aircraft in the short term. In addition, the Turbofan 10 is the first key model to enter mass production after the establishment of the Aerospace Power Group. Hence, when the performance of the engine itself meets the requirements, the highest priority work at present is to put it into production as soon as possible. No matter how beautiful the group''s annual report is, it is not as convincing as delivering the J-11B and J-10A equipped with turbofan 10 to the troops as soon as possible. As I said before, superiors also have to face pressure when making drastic reforms. As one of the biggest beneficiaries of the reform, the Aerospace Power Group needs to give feedback and confidence to its superiors as soon as possible to prove that their decision is correct. But. ????After a short pause, Chang Haonan changed the topic again: Research in this area can be continued with some funding. When we really develop the fourth-generation aviation engine, it will definitely be used. Chang Haonan stretched his muscles as he spoke. At this moment, an idea suddenly popped into his mind. When designing the turbofan 10 before, many new technologies were verified on the turbofan 9. However, after the design of the A/B models of the Turbofan 10 is finalized, there is a high probability that there will not be a Turbofan 9 in the country that can be used for practice. But the east is not bright and the west is bright It seems that there is no solution. You can try it on M88 Liu Yongquan, who was putting on his coat, naturally heard this sentence. He asked with some curiosity: I heard some time ago that the French seem to have no sincerity and have been delaying time? Chang Haonan smiled and shook his head: That was indeed the case at the beginning, but recently their attitude has turned 180. They have already talked to us about specific ways of cooperation. They probably want to take advantage of Chinas self-respect. As a result, the Americans ignored them at all. Dassault and Snecma approached Huaxia to cooperate in the development of turbofan engines because the former did not keep it secret. Therefore, let alone Liu Yongquan within the Aerospace Power Group, even the outside world has already had various rumors and discussions about this matter. . Its just that because the source of the news is on the other side of the ocean and the statement is not clear, most people directly guessed in the wrong direction They all thought that it was similar to the situation with the turboshaft 8 in previous years. The French wanted to transfer the technology of the M88 engine to China. However, there does not seem to be a model in China that requires high-performance mid-range propulsion as power. Hence, the direction of the discussion quickly turned to the possibility that China would develop new models. At this point, it has nothing to do with the real world. ??Speculations range from the final overhaul of the J-8, to the enlarged version of the J-10 with dual mid-range thrusters, to the possibility that China will develop a medium-sized fourth-generation aircraft... In short, it is getting more and more outrageous. Not to mention, although it is all just guesswork, Zhang Liangpings weekly public opinion briefing to Chang Haonan contained an imaginary picture of a dual-engine J-10, which is really similar to the second version of the J-10 prototype currently being manufactured. There are so many similarities... "If this is going to happen, it would be better to let the French be the guinea pigs." Liu Yongquan said as he opened the door to Chang Haonan, and then the two of them left the computer room together: "I have seen some photos of the M88 at air shows before. Judging from the parts that can be seen with the naked eye, the overall design is relatively conservative, but it should be that a lot of effort has been made in materials, so the temperature in front of the turbine is claimed to be very high, leaving It gives us a lot of room to play. ?This judgment was similar to Chang Haonan''s previous thoughts, causing the latter to turn his head and look at Liu Yongquan, and then suddenly slowed down. Liu Gong. After a few seconds, Chang Haonan suddenly said: If M88 can be successful, considering the research and development experience, the main body of foreign cooperation must be your 606 institute. So, based on your personal wishes, after the turbofan 10 completes the finalization process, do you want to continue to develop improved models or aeroderivatives, or do you want to help Snecma optimize the M88? This question directly stopped Liu Yongquan. ?He didnt even think about it. When Liu Yongquan had just joined the newly established Taihang project as the deputy model chief engineer, Liu Yongquan had even prepared to "dedicate the remaining twenty years of his career to this model, as long as he could see it mass-produced and installed before retirement." psychological preparation. After all, Chief Engineer Chang Haonan is younger than him. It is obviously not possible to retire the Chief Engineer and then take over as Chief Engineer like most of his predecessors did. As a result, plans cannot keep up with changes. ?? Before he could mentally prepare to be a deputy chief engineer for the rest of his life, the thing that needed to be considered had already become "What are you going to do next after the Turbofan 10 is finalized?" Continuing to work on the Turbofan 10, he is familiar with the road. With the design foundation of the "3.75-generation core machine" laid by Chang Haonan, there will not be too much risk. But to say that I am not interested in M88 is definitely false. "never mind." Chang Haonan waved his hand: Theres no rush at this moment. You should consider this issue first and just give me the result before the end of the year. (End of this chapter) Chapter 794 Too much bullying Chapter 794 Bullying goes too far ?At the same time that Chang Haonan was intensively promoting the turbofan 10 test work. Eastern coast of the Mediterranean Sea, Jaffa. ? David Aircraft Industries (IAI). Lu Jinwenzheng, the person in charge of the final assembly task of the Ring Project, and his deputy Sui Dongxing were squatting at the window of a stairwell. ?The former even held a small monocular telescope in his hand. They were observing a workshop about 500 meters away attentively. With the sunlight shining in from the east, Sui Dongxing could see through the telescope a huge IL-76 transport aircraft parked in the workshop. Densely packed climbing frames are also installed around the aircraft. But no one is working on it or around it. In fact, the modification work on this aircraft has been stalled for more than a year. Recently, they, the Chinese technical personnel, were directly prohibited from approaching the aircraft. By this month, even permission to enter the workshop had been revoked. ??As long as a Chinese face approaches there, the sentries standing guard at the door will step forward to drive them away. Considering that we are on someone else''s territory now, there is definitely no future for breaking in. Therefore, in order to observe the situation inside the workshop, I came up with this strategy. Mr. Lu, even if you have to stare at the opposite side, you dont have to come so early in the morning, right? Sui Dongxing held a camera in his hand and yawned while speaking, obviously not fully awake: That plane cant suddenly run away, we just need to prevent them from causing damage. Of course you cant run away. ?Lu Jinwen didnt even put down the telescope: "But Lao Song told me before that he heard a few people from the Kingdom of David chatting yesterday. It seems that there will be foreigners recently... meaning people from the fourth country besides us, Russia and the Kingdom of David. Come and see this plane. The name of Lao Song in his mouth is Song Haoqiang. He is the only person in the entire team who can speak Hebrew and Arabic except for the translator. But he never exposed this. ?Hence, we often hear important information coming from people who are not cautious enough. "ah?" Sui Dongxing almost jumped up from the ground when he heard this, with an angry look on his face: What the **** is this happening? You must know that in the initial plan, the products of the Ring Project will become the absolute core of the Chinese Air Force''s operations in the next 20 years. Even though things have developed to this point, anyone with a discerning eye can see that this trilateral cooperation project must be broken up. But at least legally speaking, this is still an unfinished state. ??Now its just a matter of not letting the Chinese side have access to the plane, and why not bring people from other countries to see it? If you can bear it, you can eat shit! No wonder Sui Dongxing was so emotional. ?In the past few months, they have received too much scorn from the Kingdom of David. Keep your voice down. ?Lu Jinwen quickly patted Sui Dongxing next to him. Although what the two of them are doing now cannot be considered espionage, it would not be a good idea if they were discovered. After the latter squatted back in front of the window, Lu Jinwen lowered his voice again and said: So today I am going to get the evidence that they violated the contract and privately led unrelated people to contact the prototype of the ring project. This way, when we fight in the future, we will have more chips in our hands. ??As the project vice president and on-site person in charge, Lu Jinwen has actually known for a long time that the country has given up its expectations for the ring project, so he has now begun to prepare for the international lawsuit that is destined to be a long-term dispute. ?While the two were talking, several black luxury cars filed in from the internal road next to them. After turning a few turns, they finally lined up at the entrance of the workshop. Obviously, the news Song Haoqiang heard was true. Quick, get ready to take pictures! ?Seeing this scene, Lu Jinwen quickly signaled Suidong Xing to get down to business, while he continued to stare at the situation in the distance with his telescope. ??More than a dozen people dressed in different clothes got out of the car one after another and shook hands with the IAI leadership who came to greet them. Unfortunately, it is impossible to hear what they are saying here. Which country is this guy from? Is he white or black? ?Lu Jinwen frowned and muttered to himself in confusion. When those cars appeared just now, he had actually thought about many possibilities. But the brain is still a little down at this time. "let me see" The camera next to Sui Dongxing had a large magnification, but it was difficult to see clearly through the viewfinder, so after pressing the shutter a few times, Lu Jinwen and I changed hands. But soon he also encountered difficulties: Hmm Hes not from Africa, right? It actually looks a bit dark, but not particularly dark? "Most of the people on the southern coast of the Mediterranean in North Africa are white people. If you''re talking about sub-Saharan Africa... I don''t think they would be interested in early warning aircraft, right?" ?Lu Jinwen took over the task of taking pictures and was taking pictures in succession. Suddenly, he noticed that another man wearing a strange-looking turban got out of the car in the middle. Fuck, I know! ?He first slapped his thigh, and then quickly raised the camera again to take a picture of this man shaking hands with the general manager of IAI. Indian? Sui Dongxing next to him also made a guess.?????"Eight or nine are inseparable from ten." ?Lu Jinwen nodded: I heard that they had some conflicts with their neighbor in the first half of the year. Although they won in the end, the air force suffered heavy losses. It may be that they learned from the experience and prepared to build early warning aircraft. But if you need it urgently, why not buy it ready-made? ? Sui Dongxing is a bit strange. "Hey, you don''t understand this. I''ve been in contact with them before. They have high ambitions but low intentions. I must think that the E3 and A50U are too old, so I came to buy the active phased array system of Falcon. It just happened. There is another half-finished product here, and it will definitely arrive faster than starting from scratch. " ?Lu Jinwens analysis is obviously very reasonable, and Sui Dongxing was immediately enthusiastic after hearing it: Holy shit, they want to give our plane to someone else? Then we must contact the country quickly and make a clear statement to protest against this behavior! The former is much calmer: "That''s not the case. We signed a contract with Beriev for this aircraft, and asked them to directly select an old aircraft in good condition and send it over. Because the project has been stalled, the final payment is still due. Its not finished yet, so lets not talk about whether David dares to give it away, even if he dares, the Indians probably wont accept it. I estimate that they still want to sell the plan of converting the Il-76 into an early warning aircraft, so they brought Indians to actually visit it. ?The main equipment of the Indian army is basically imported from Russia, and it will definitely not conflict with Beriev over such a trivial matter as an IL-76. ?At this time, the two groups in the distance had finished their greetings and walked into the workshop together. ?Lu Jinwen took a few more photos, then raised his head and said: However, what you just said is right, we must contact the country. He said, clenching his fists: "No matter what, this aircraft is our property, and the ring project is also a project jointly developed by our country and IAI. They want to directly transfer the results to a foreign country, and it is a country that is in conflict with us. It is simply too much. ! Sui Dongxing, who had been waiting for this sentence for a long time, stood up immediately: Then I will contact the embassy in Jaffa and ask them to convey the photos and news back! Lets go together, the telegram should require my signature. ?Lu Jinwen said and put the camera away. But after thinking for a moment, he pressed the shutter button continuously and took all the remaining pictures on the film. The buzzing sound of the rewinding motor sounded. "this" Sui Dongxing next to him was confused for a moment, but he immediately understood Lu Jinwen''s operation. This is to take out the film. Just as he expected, Lu Jinwen quickly pulled out the film from the camera and carefully hid it in his belt. Finally, I replaced the half-used roll of film in the camera. After a series of operations, the two of them pretended to be nonchalant and left the building. Sure enough, at the gate of the IAI factory, they were stopped by an officer with the rank of lieutenant. Sui Dongxing was so angry that his scalp was beating with anger. Although he kept telling himself to be calm, his tone could not help but be a little aggressive: Whats the matter? ?The other party looked at the travel bag and camera bag the two of them were carrying, and said in somewhat stiff English: According to regulations, before you leave the top-secret area, I need to make sure that you are not carrying any classified information. When was there such a provision? Even though he had already made preparations, in order to act more realistically and to argue with reason, Lu Jinwen still asked: We have left the factory before, but we have never been searched. In fact, their personal belongings were all reported. When they brought the camera in before, the other party did not take care of it at all, indicating that there was no such requirement. ? Even if there is one, it is unlikely to involve the entire factory area. The notification came down just yesterday. The lieutenants English accent is a little stiff: If you refuse inspection, you cant leave here. At this time, two armed guards not far away also took a step forward. Obviously, this is non-negotiable. The two of them pretended to be helpless and threw the three bags on the table: Hurry up, were in a hurry. One of the guards took out the contents one by one and put them on the table for inspection, while the lieutenant began to search him. Fortunately, the location where Lu Jinwen hid his things was concealed enough and no clues were discovered. At this time, the guard also picked up the camera and tried to open the back cover. ??If the unfinished film is opened directly under the light, it will be directly exposed and invalidated, so Sui Dongxing directly reached out to try to stop it. Cant open it. If you open it, it will be exposed and you cant use it! But the guard had no intention of letting go. Finally, although Sui Dongxing had an angry look on his face, he still reluctantly let go. ?The other party pulled out the film and threw it aside, only returning the camera to the two of them. Out of anger, Sui Dongxing cursed in Chinese. ?Of course no one except him and Lu Jinwen can understand it. Can we go out now? ?Lu Jinwen showed relative restraint, but there was obviously anger in his tone. The lieutenant nodded and signaled to the guards behind him to let him go. Sui Dongxing obviously wanted to use the opportunity of acting to vent his anger, but was stopped by Lu Jinwen who was worried about the long nights and dreams. The two of them just walked out of the gate of IAI. (End of this chapter) Chapter 795 Circle Project, Finale Chapter 795: Ring Project, Finale While Lu Jinwen and Sui Dongxing were rushing to report the situation in the Kingdom of David to the country. Within the IAI factory area. ?Hindustan Airlines Senior Engineer Abhinav Bhargava and Air Force Deputy Chief of Staff Lieutenant General Bhadauriya walked into the assembly shop surrounded by several senior IAI leaders ??Although the Air Force''s performance in the Kargil conflict in the first half of the year was a disastrous defeat, thanks to the more abstract performance of the Pakistani Army, the Indian side still achieved victory from the perspective of the entire war. You know, Indians can be happy even if they lose, let alone win. Therefore, in the final discussion of merit and rewards, the Air Force, which had no merit but hard work, still got some soup. ??At that time, Badaulia, who agreed with Chief of Staff Admiral Klimpa''s early warning aircraft plan and finally proposed to purchase the Falcon system from the Kingdom of David, naturally became the former''s deputy. Although in terms of level, the Chief of Staff of the Western Air Force Command and the Deputy Chief of Staff of the Air Force are the same, even the offices of the two places are only less than 50 kilometers apart. But obviously the latter has higher gold content. As a condition for being transferred to the core circle of New Delhi, the first task Bhadauriya received after taking office was to be responsible for the entire early warning aircraft procurement plan. An absolute hot potato. ??If the interests of the various parties involved are not well balanced, then his position as deputy chief of staff may not even sit well and will need to be replaced. Even if the balance is good, if something goes wrong in the future, he, as the executor, will most likely be thrown out as a scapegoat. But now that the matter has come to this, he really has no choice. ?Dr. Bhargava was the previous technical deputy director of the HS748AEW&C early warning aircraft project. Since the technical director died in the crash of the HS748 prototype, he could only be responsible for examining the compatibility level of the Falcon system and the IL-76 platform. ?After adapting to the slightly dim environment in the workshop, the first thing Bhargava and Bhadauliya saw was naturally the IL-76TD transport aircraft that even had a radar bracket installed. Looking at the huge machine in front of him, Dr. Bhargava showed a little envy in his eyes. Compared with the HS748, which has a take-off weight of only over 20 tons and can only be used as a dojo in a snail shell, the Il-76 can obviously provide engineers with more room for display. At least you dont have to worry about the radome completely blocking the vertical tail, causing the aircrafts directional stability to be almost completely lost. ?However, Bhargava did not seem to take into account that the reason Stan Airlines chose HS748 was obviously not because it did not want a larger platform. But there is really no ability to carry out structural modifications on 200-ton large aircraft... Has the design of this aircraft been finalized? Badoria next to him did not pay attention to the doctor''s emo, but was directly concerned about the most important issue. "certainly." ?Mor McCoy, the head of IAI who was in charge of the reception, immediately replied: "The entire plan itself was designed by the Beriev Group with reference to the A50 early warning aircraft. It is considered a very mature plan. However, the airborne equipment was replaced with the EL/W-2090 radar developed by Elta Company, and the operating terminal and command system were also modified. Upgrade accordingly. ??As he spoke, he pointed to a set of phased array antennas placed on the other side of the workshop, and then continued to add: Except for being slightly smaller in size, the technical solution of the phased array antenna is exactly the same as that of the Falcon early warning aircraft, but according to the design plan, we will arrange three sides in a triangle in the radome, so there will be no detection dead spots. Lieutenant General Badauliya walked over quickly and took a closer look at the packaged antenna. ? It is of course impossible to see anything with the naked eye, but in any case, it is definitely much better than the industrial waste produced by Bharat Electronics Co., Ltd. A week later, Chang Haonan returned to the capital after his work in Shengjing came to an end. ?Like before, after getting off the plane and packing up briefly, the first thing I did was to go straight to the Commission of Science, Technology and Industry for National Defense to report on my work. Speaking of which, he had not been there for several months after the Aerodynamic Group was officially established. I feel a little nostalgic when I think about it. ??When Chang Haonan arrived at the Science and Technology Commission, Ding Gaoheng was already waiting for him in the office as usual. Director Ding. ?Chang Haonan knocked on the door and entered the house. ?However, Ding Gaoheng did not start talking about business immediately. Instead, he smiled and joked: I heard that last month, Xiao Chang, you won a victory in the public opinion circle? As he said this, he motioned to Chang Haonan to find a place to sit. ??The incident of using public opinion to counterattack the Nancheng Daily was a bit long ago now, and to be honest at that time, it was just a matter of convenience. Therefore, Chang Haonan was stunned for a moment before he realized what Ding Gaoheng was referring to. Wellits just a coincidence. He waved his hand: Originally, I am actually a very easy-going person. Normally I would not be prepared to do anything about this matter. As a result, the Nancheng News group had to take action. Speaking of this, Chang Haonan looked sad: "They criticized our Torch Laboratory for wasting scientific research resources, but my paper was published in the journal just a week later. There was no other way, so I could only reluctantly target them..." Ding Gaoheng did not speak directly after hearing this. He just looked at Chang Haonan, who looked harmless, with an expression of "I believe you just saw a ghost." ?However, he had long been unhappy with the people in the Nancheng Newspaper, but he just went out and cursed in the street due to his status. ?This time someone was able to vent his anger and make the other party feel weak, and it was too late for Ding Gaoheng to be happy. ??? I just mentioned this matter just to have fun again. ?Now that the fun is over, its time to get back to the topic. So, he regained his serious expression: Is the situation in Shengjing going well? "all the best." ?Chang Haonan also calmed down his expression: "The test flight of the J-11B, and of course the final stage of testing before the design of the Turbofan 10 is finalized, are all proceeding according to the schedule. We have currently frozen the technical plan for the Turbofan 10A. Unless any particularly important problems are discovered, we will Carry out small-batch mass production according to the current technical status, and then transfer to formal mass production after the production is finalized. As for some new technologies that have only recently completed research and development or are still in the process of research and development, they will be reflected in the future improved turbofan 10C. One generation of mass production, one generation of R&D, and one generation of planning. This is a standard set by many projects to ensure a fast enough iteration speed. Although this principle is widely known as a military industry slogan, in fact, the iteration speed of most military products does not meet this requirement. At least in the late 1990s, this would not be enough. However, under the leadership of Chang Haonan, Hangfa has indeed achieved this. ?For example, now, we are mass-producing the turbojet 14, developing the turbofan 10A/B, and planning a deeply improved version of the turbofan 10. "very good." Ding Gaoheng nodded with satisfaction. In his impression, the news that Chang Haonan brought back seemed to be like this every time. Slightly boring and smooth. ?Of course, he would rather stay like this forever. Is there anything else you need help from the organization? With such a subordinate, Ding Gaoheng''s duty is to be a good nanny. It really does. Chang Haonan is not polite: "According to the plan, one of the main weapons of the J-11B will be the PL-13, which is an air-to-ground dual-purpose missile that uses the R33 missile body and replaces it with our own active and passive composite seeker. However, if we want to test The ultimate performance of this missile requires the assistance of an early warning aircraft to at least provide the carrier aircraft with a rough target location. " Furthermore, testing the air-to-air anti-radiation function also requires a real early warning aircraft as a target drone (unmanned target drones cannot provide sufficient signal strength). ?Of course it is impossible to actually shoot it down, but to make sure the seeker is working properly before letting the missile self-destruct. ?However, this matter still sounded a bit risky, so Chang Haonan did not dare to talk to Ding Gaoheng for the time being. Afraid of scaring old comrades. So, it is best to speed up the research and development progress of the Air Police 200. Chang Haonan said. To speed up the progress of research and development, just shouting a few words is definitely useless. So, this is actually asking for money tactfully. The test flight of the Air Police 200 went smoothly, and a large amount of new funds will be injected next year, so the progress should be very fast. Ding Gaoheng naturally understood what Chang Haonan meant. Fortunately, the Science and Technology Commission has now formed a virtuous cycle, allowing superiors to fully appreciate the terrifying profit rate of return in high-tech industries, so funding has been much looser than in previous years. ?However, immediately afterwards, Ding Gaoheng''s face suddenly darkened: Speaking of early warning aircraft, Xiao Chang. He opened the drawer and took out an envelope: Here are some photos, which were sent back from Jaffa by the comrades in charge of the ring project. After speaking, he pushed the envelope in front of Chang Haonan. In fact, as a reborn person, Chang Haonan can probably guess what happened even without looking at the photos. After taking out the photo, it was exactly as he expected. ?That typical South Asian skin tone, and the iconic turban one of them is wearing. I think its pretty good. It seems that the Kingdom of David is determined to sell the results of the Ring Project to others? In front of Ding Gaoheng, he still had to show a little shock. "Um." Ding Gaoheng replied: Not only that, our technical staff stationed at IAI were even rudely searched by the IDF. These photos were all brought out through special means..." In the next ten minutes, Ding Gaoheng told Chang Haonan about the experiences of Lu Jinwen and Sui Dongxing that day. "grass" Chang Haonan had only known the general direction of the ring project before and was not aware of these details. ?Now that I heard it for the first time, I felt like I was getting angry. After all, since my rebirth, I have rarely encountered such a heart-warming thing. So...what did IAI say? ?As he asked, he was thinking about whether there was any way to get revenge that would not cost too much. These photos are still devastating. Ding Gaoheng replied: If we announce it, Im afraid they wont be able to do business with the Indians, so the preliminary plan reached so far is to take a step back. "IAI will refund the US$250 million we have paid for the goods, pay the final payment for the aircraft and design plan to the Beriev Group on our behalf, and then compensate us for 15% of the purchase price paid by India. In exchange, We will no longer hold Circle Engineering responsible for breach of contract and will not make these photos public. At this time in 1999, India was still under sanctions due to previous nuclear tests. ?Although there was no real impact, everyone tacitly agreed on what to do almost at the same time. But at least the arms transactions, such as the J-7F delivered by China to the Pakistani army and the advance payment of the Su-30MKI by India to the Irkutsk manufacturing plant, were all carried out secretly with tacit understanding. ?At this juncture, if the news of IAI''s large-scale sale of strategic weapons such as early warning aircraft leaks out, the impact will be quite bad. ?David''s kingdom may not be afraid of these public opinions, but the Indians are likely to give up buying or switch to other companies because of this. This is difficult to accept for IAI, which is eager to withdraw funds. ?Chang Haonan thought for a moment. ? Judging from the conditions alone, the US$250 million can be recovered, and there is also a 15% loan that is essentially equivalent to liquidated damages. Approximately around US$50 million. Compared to the previous life, it is not a loss. However, since the dispute has been forged, it is naturally impossible to just let it go. ??But then again, after all, the Kingdom of David has a good man to back it up. If it really causes trouble in the open, China really doesn''t have many bargaining chips. So, it is best to find a way to make the opponent suffer a hidden loss. Just like what was done in the Balkans. And if you count the time... ?Perhaps we can do something in the Nanli area... (End of this chapter) Chapter 796 Write it down in a notebook first Chapter 796: Write it down in a notebook first Although the plan is already in place, it is not yet time to implement it. At least not when there are big moves. First of all, it is already December 1999, and the millennium is approaching. The Davidian garrison in southern Lebanon has basically begun to withdraw, leaving only a ruined puppet regime lingering there. Several other surrounding countries have not completely given up their illusions about the West at this time, and are in a tangled stage of dilemma, with no good focus. Secondly, although China today is 100 million points stronger than the previous generation, it is still slightly out of reach of places like the east coast of the Mediterranean. In short, both in terms of needs and means, some further preparations are needed. In the final analysis, the reason why the Ring Project has reached this stage is mainly because when the agreement was signed, China still maintained its illusions about the West. Moreover, at that time, the arms business between China and the Kingdom of David had been going on for many years. The introduced Strange Snake air-to-air missiles, as well as the Harpy anti-radiation drones that were under negotiation at the time and later successfully introduced, later also affected China. The development of similar weapons has had a certain positive effect. Therefore, I think that since the contract has been signed, the "spirit of contract" plus the relationship of "old business partners" should be able to guarantee the normal execution of the terms. The result can be imagined. ?The Western contract spirit is used to bind others, not themselves at all. By the time Chang Haonan finally made some noise with the Science and Technology Commission and was able to speak, the advance payment and a plane had already been sent. So all we can do is find a way to wipe our butt. ?Of course, the red and black accounts in the small notebook must still be remembered. Looking at Chang Haonan''s uncertain face, Ding Gaoheng could naturally guess what he was thinking. ? ? After all, the latter is someone who has personally experienced the darkest moments from the 1980s to the early 1990s. His perspective on things is definitely different from that of Chang Haonan, who was reborn in the 2020s. For him, the outcome of the Ring Project is indeed not bad. At least compared to the Peace Model Project back then, it was much more respectable. And he didnt suffer much. After being silent for a while, Ding Gaoheng still spoke: "Xiao Chang, don''t be too angry about this matter. It may not be a bad thing for us to be able to quickly cut through the mess and bring the ring project to an end." ?There is nothing wrong with what you say. As long as the Ring Project exists, it is inevitable that some people will take chances on the Kingdom of David. As a comprador, there is no bottom line after all. It would be better to cut off this last thought completely. After a short pause, he continued: "The nearly 300 million US dollars recovered, as well as the follow-up funds originally planned to be allocated to the ring project, will be reported to the superiors and invested as much as possible in the subsequent research and development projects of domestic early warning aircraft." Hearing the news, Chang Haonan''s complexion suddenly turned from gloomy to clear. You know, the budget of the entire ring project is almost 1.2 billion US dollars! This is 1999 dollars! Although China helped the EU keep the euro''s exchange rate from falling below 1 during Operation Allied Force, making the euro stronger in this timeline than in the previous life, at least for now, the U.S. dollar is still the unquestionable number one in the world. One currency. 1.2 billion US dollars is equivalent to more than 10 billion yuan. Even if only half of it, 5 billion yuan, is allocated, it is already equivalent to one-third of the manned space project, or more than half of the budget of Turbofan 10. You must know that the former also includes infrastructure such as railways, launch sites, and measurement and control stations, while the latter includes the research and development of the entire 3.75-generation core machine. In this case, it would be best to ask Shanghai Aircraft Corporation to speed up the progress and build the C909 passenger aircraft as soon as possible. Chang Haonan thought for a moment and then said: "Technical demonstrators and prototypes can be built with two Tu-214s and modified one at a time. However, if mass production is to be carried out, it is best to ensure the independence of the platform." In the previous life, the Air Police 2000 only produced 4 aircraft and was forced to replace them. The Yun-9 platform switched to producing the Air Police 500, largely because the number of IL-76s on hand was insufficient and they were all old aircraft. Due to different usage conditions, the conditions of the aircraft varied greatly, and it was almost necessary to tailor-made modification plans for each aircraft. ?That kind of sourness makes Chang Haonan''s head spin just thinking about it, but he doesn''t want to experience it personally. This is no problem ?Now that Ding Gaoheng''s money bag has become more bulging, he agreed very simply: "Next year is the last year of the Ninth Five-Year Plan, and we must formulate a development plan for the Tenth Five-Year Plan. At that time, let Hufei mention the priority of C909 and find ways to get some funding. After all, C909 is not a new product. Regarding the aircraft, considering the progress of C808 and Project 11, it should not be delayed for too long. ?Chang Haonan nodded, agreeing with Ding Gaoheng''s judgment. Compared with the direct jump from the 80-ton Y8 to the 220-ton Y20 in the previous generation, adding a 110-ton product transition in the middle is obviously more in line with the general law of the development of the aviation manufacturing industry. After finishing talking about the serious business, the two chatted for a while. When it was almost time to get off work, Ding Gaoheng suddenly invited Chang Haonan to have dinner at his house again. For Chang Haonan, this is indeed a "common meal". ?But this time, he looked embarrassed: Director Ding, Old Wu returned from Ermao today and has made an appointment with me tonight. Its really If it is a private meeting, then it must be declined. ??But meeting with Wu Yifan falls within his business scope, so it will definitely not delay his work. What''s more, because of what happened just now, Chang Haonan also wanted to meet the other party as soon as possible. Hearing this, Ding Gaoheng waved his hands indifferently: Thats okay, work matters are more important. Anyway, I have the same meals at home every day. You can just come over another day. Because Chang Haonan specially set up two private rooms in the canteen of Torch Group, so this time, he and Wu Yifan no longer need to meet outsiders. At seven o''clock in the evening, Wu Yifan arrived at Torch Group on time. When they first met, Chang Haonan almost didn''t recognize him. Old Wu, your face looks like this Comparing to the meeting at the beginning of the year, Wu Yifans skin tone has become several shades darker: I remember you went to Eastern Europe, not East Africa. Why do you have such a tan? Its not the big job you gave me. Lao Wu said as he hung the scarf and coat on the hangers at the door: "During the hottest period of this summer, I was dusting people in the Balkans for four consecutive months, standing under the sun every day. Is it like this now or did it turn a little grayer after I returned to Ermao? If you had seen me three months earlier, I would have looked like a big African brother..." Although there were complaints on his lips, Lao Wu''s expression was still full of joy. After all, hard work is hard work, but the money earned is real. For a person with little background like him, there are not many ways to make the first pot of gold. Besides, a huge change in appearance is not necessarily a bad thing for the nature of Lao Wus job. As soon as the two of them sat down and exchanged pleasantries, two waiters came in with a trolley and brought the dishes that had been prepared in advance to the table one by one. After all, it is our own internal restaurant, and most of the things discussed here are not easy to spread. ??If people keep coming in one after another during the meal, even if there is a doorbell at the door to prevent leaks, it will always interrupt the conversation and make people uncomfortable. (End of this chapter) Chapter 797 Layout in advance Chapter 797: Planning in advance Lao Wu. After the waiter left, Chang Haonan took a sip of tea and got straight to the point: The aircraft carrier that Luchuang Group bought back has not been towed back yet? "not yet." ?Wu Yifan lowered his head and scooped up a spoonful of stewed lion head: "Originally we planned to set off in August or September, but as I reported to you last time, there was a batch of fragile equipment that we had obtained from the shipyard and put on the ship. We were worried that it would be damaged midway or be robbed by someone who was interested. So I made a temporary decision to dismantle it and give it to me to transport back, so I spent a few months dismantling the equipment. However, before I come back from this trip, all the work has been basically completed. I estimate that I will be able to leave Hong Kong before the end of the year. After finishing speaking, he put the lion''s head into his mouth, tasted it carefully, and then let out a sigh of satisfaction: When it comes to food, it has to be better in China ?Chang Haonan has not been abroad for a long time, but looking at the other party''s appearance, he probably suffered a lot outside. Immediately turned a few big dishes aside: "That''s good. During this period, Shipbuilding Industry has been eagerly waiting for the ship to arrive. It is said that Lianhai Shipyard and the dock have been dredged and prepared..." In fact, it doesnt matter to him that the ship leaves a month earlier or a month later. The key point is to calculate the time and prepare to deal with the Turks who are likely to cause trouble. At this time, Old Wu finally put down the spoon in his hand: Speaking of which, there is one more thing I need you to decide on. ?Chang Haonan was rolling duck pancakes with his head down. He did not speak, but raised his hand to signal the other party to continue talking. Its a matter of friendship plan. Wu Yifan replied: "Didn''t I send hundreds of engineers and technicians from the Black Sea Shipyard to China before? Some people were a little worried at first and didn''t want to bring their families with them. But after staying for a few months, they regretted it and grabbed them one by one. Please contact your family to come over. "As a result, this matter slowly spread. Not only the Black Sea Shipyard, but also several large-scale military industrial companies such as Kharkiv, Antonov, and Ivchenko started to Contact the smuggler... er... liaison officer I assigned there and ask if we can implement the same policy and come to the country. " Yes, of course I can. This time Chang Haonan raised his head: As long as it meets the requirements we have set, the more the better. Even if most people cannot participate in our military projects, they can still play a role in the civilian industry. ? ?The original intention of setting up the friendship plan was to systematically introduce talents from the CIS countries. Now that they are rushing to come over, it is naturally a good thing - You must know that these people are not foreign trash, they are all technical backbones trained during the Soviet period. But Brother Nan Old Wu hesitated for a moment: Others are easy to say, but both Antonov and Ivchenko are the second-tier suppliers of the Tu334 passenger aircraft we introduced, which should be called C808 in China. I specially asked someone to check it. Even under the current situation, it is very difficult for them to complete the delivery task. If I pick up the wool again, I am afraid that this production speed..." Obviously, after a few years of hard work after graduation, he is much more thoughtful in doing things than before. Dont worry about this. You are only responsible for checking the qualifications and bringing them back. I will solve the quota issue! ?Chang Haonans answer was crisp and clear. But the passenger plane Wu Yifan is still a little worried. ?Chang Haonan raised his hand and pressed it down, then lowered his voice slightly: "Technically speaking, the production of C808 only requires us, Tupolev and Salyut to complete it. The reason why Ermao was included at that time, in addition to considering the property rights issue of Tu334 itself, was to wait for their production capacity to catch up. The day I wont go "ha?" Lao Wus chopsticks for picking up food stopped in mid-air. This matter is more complicated to elaborate on ?Chang Haonan also stopped drinking soup: In short, this project was guaranteed by the Ermao official. In other words, if it cannot be implemented as required, the compensation will be paid by the Ermao official. Uhso? Old Wu frowned, feeling that things were not simple: Er Mao is so poor now that even natural gas has to be financed by Da Mao. Unless you go to Kiev to dismantle telephone poles, it will be difficult to get the money back..." I wasnt prepared to ask for it. Chang Haonan pointed out: I am planning to wait until a certain stage and then use the name of debt repayment to get some good stuff back. Is that so? ?Wu Yifan suddenly realized it, then raised his hand and touched his temples: "If you want to say black, then you are the black ones..." Chang Haonan waved his hand: Hey, its a prize, its a prize What he was eyeing was naturally the pictures in Er Mao''s hands160. ??There are currently 19 Tu-160s remaining at Preluki Air Force Base. After so many years, there may still be a total of eleven or twelve that can still fly. Originally, around 1995, the country sent people to inspect these aircraft. But at that time Ermao was under joint pressure, and in the end it was not sold. Originally, this matter should have gone nowhere. ??Without the series of drastic changes caused by Chang Haonan, 8 of these aircraft would have been handed over to Mao in the name of debt repayment about a year later, and the remaining 11 would have been completely destroyed under "international supervision." ?Later, Tupolev used the spare parts left over to assemble a new aircraft to supplement a Tu-160 that crashed due to an accident. Further forward, that is the story of the successful resumption of production of Tu160M2 in 2023. ?However, in todays timeline that has changed beyond recognition, the United States and Russia, which originally had a certain tacit understanding on this matter, have interrupted contact due to Allied Forces operations ?Although there is no evidence to clearly indicate where the weapon that shot down the B2 came from, at this time, Americans'' path dependence is still stuck in the Cold War era. So I almost instinctively put the blame on Da Mao. ?Hence, if Da Mao now wants to get a few bombers back as planned, it would be best to find one or two more helpers to jointly put pressure on Er Mao. ?Of course, as a proper strategic weapon, the whereabouts of any Tu-160 is an extremely sensitive matter. Even Chang Haonan cannot guarantee 100% success. But now that I have the opportunity, I must give it a try. Even if we can only get three or four of them, it will give China early access to the design, maintenance and production of 300-ton supersonic aircraft. And acquire one more theoretical strike capability against the east coast of the Pacific In fact, since the mid-1970s, the Chinese Air Force has eliminated all nuclear-related positions, and there is no mass-produced service model that can actually carry nuclear weapons. In other words, Chinas trinity nuclear capabilities have actually been absent for a long time. ?In the context of the time, this decision was understandable. After all, the aerial bombing of H-6 nuclear bombs did not have any tactical value, no matter how abstract it sounded. However, as the times progress, the variety of space-based nuclear weapons will increase again, especially in the use of tactical nuclear weapons, which have unique advantages. It is best to recover as soon as possible. As a strategic bomber, the Tu-160 has undoubtedly considered this since its mother''s womb. In comparison, having an additional logistics support system is a negligible price. The two of them ate and drank together and quickly finished chatting about the planned topics. After a moment of silence, Chang Haonan said what he had just remembered during the day. Old Wu, after you go back this time, can you think of a way to open up a transportation route from Eastern Europe to the east coast of the Mediterranean? ?This somewhat explosive topic made Wu Yifan, who was rubbing his stomach to digest food after a meal, unable to react for a while: Where? The east coast of the Mediterranean, I mean the northern part of the Levant, places like Lebanon. Hearing this, Old Wu sat up straight again and thought for a while before asking: There doesnt seem to be anything worth returning to in these places, right? Thats true. Chang Haonan replied: So you first get some normal supplies, such as transporting cars, flour, electrical appliances and the like, and then transport some local specialties. In short, things are not important. What you can earn personally is what matters. The important thing is to open up the route, so that if you need it in the future, you can use it immediately without having to improvise. There is no doubt that this is planning in advance. Hmm...I have to find out about this after I get back. Old Wus answer was very cautious: I have never run this route before. I feel that it is more reliable to go from the Anatolian Plateau or the two river basins in the east than from the sea, but I have to try it to know the specific situation... You are a professional in this area. ?Chang Haonan patted the other party on the shoulder: I dont rush for time, and my priority is to ensure the stability of the channel. "good." (End of this chapter) Chapter 798 My boss mentorjpg Chapter 798 My Big Mentor.jpg The two are old classmates after all, and they havent seen each other for nearly a year. Therefore, after the serious chat, there is bound to be a routine bragging session. Compared to Chang Haonan who spends most of his time immersed in projects or experiments, Lao Wus life is obviously much more exciting and colorful. For the entire second half of the meal, Chang Haonan was basically listening to him telling stories alone. ?Especially the few months I spent in the Balkans were so exciting that I could almost write a novel. Wu Yifan prefers drinking. But when I was abroad, I was worried about making a mistake after drinking, so I always presented myself as a teetotaler. ?Now that Im back in China, I can finally drink as much as I want. So, although Chang Haonan did not drink, he still got a little drunk by himself. Do you still have contact with the local US military? When Lao Wu talked about how he wholesaled MRE and other logistical supplies from the US military at low prices, then sold them to Ermao for money, and finally got involved with Eryi Tian, ??who was in charge of the US military, Chang Haonan finally couldn''t hold himself back. . ??The U.S. military has more flexible ways of making money, and he knows this. ??However, when he arrived at the station and he didn''t even feel warm, he dared to do business with a suspected profiteer with unknown origins, which was a bit beyond his expectations. More than just contact Lao Wu gulped down another mouthful of thatch: "The brigade commander at their camp over there is a...colonel, his name is...what''s his name, Martin Dempsey. I talked...and laughed..." ?At this time, his tone of voice became increasingly incoherent. But even the military rank and name of the other party are mentioned clearly, so it is obviously credible. More importantly, Chang Haonan has heard of this name. Its not you who will wait... He quickly stopped the other person from continuing: Are you sure your name is Martin Dempsey? "Yeah...it seems that he was a group leader before." ?Wu Yifan nodded, then suddenly stopped: "Then what...organizational discipline should...not be able to control me as a business person...right?" In fact, it is possible. ?However, Lao Wu''s business is of a special nature and he really cannot stick to this. Chang Haonan waved his hand: Try to maintain a relationship with him, maybe it will be useful in the future... Martin Dempsey, later served as Chairman of the United States Joint Chiefs of Staff. ?Of course, this doesnt really matter. After all, that was almost 20 years later. The point is that in Chang Haonan''s impression, this man seems to have risen to great heights in the Middle East by relying on military exploits after 2003. So, there is a high probability that this relationship can really come in handy... ?In this way, the meal between the two of them lasted until late at night. Fortunately, Chang Haonan is very energetic, and neither the professor nor the chief planner has to check in, so he can still go to work as usual the next day. Since he has been on a business trip in Shengjing for more than a week in the past week, when Chang Haonan returned to his office in Beijing Airlines, he found that there was already a lot of work piled on the table that needed to be handled by him personally. Feasibility assessment of two boil-off gas reliquefaction system design options Vibration of ultra-large ships transmission system and its structural risk assessment on the side walls of thin-walled cargo tanks Fusion diagnosis of early faults of large machinery based on manifold learning algorithm The top few are project reports or project applications submitted by three other teachers in the laboratory. Fortunately, the articles are not too long, and they are all areas that Chang Haonan is relatively familiar with, so it didnt take much time to read them all. Liu Fangping and Lei Zhixing were indeed capable. After receiving the excessive funding from Chang Haonan, they did not focus all their energy on the feasibility study, but simultaneously carried out the second project mentioned above. Research. Because according to their investigation, there is indeed a certain gap between the processing and manufacturing capabilities of the Hudong Plant, or the entire Chinese shipbuilding industry, and the world''s first-class levels. ??For large ships like LNG ships that work under extreme temperature differences, this gap is likely to bring additional risks... Furthermore, although they did not mention it, Chang Haonan quickly realized that this research result seemed to be applicable to other fields. Such as controlling submarine noise... In short, although the previously allocated budget was not left, others completed double the amount of tasks. So its not wasted. They have also passed the "test" set by Chang Haonan. The third item was naturally submitted by Yao Mengna. She is planning to set up a research topic on this topic. Its a coincidence. ?Yao Mengna has not had direct contact with the LNG ship project. ??However, this project that uses manifold learning algorithms for in-situ condition monitoring and fault diagnosis seems to be able to solve the problems raised by Liu Fangping and Lei Zhixing... In the end, of course, he signed and approved it. And below these three contents Laboratory access permit? ?Chang Haonan looked at the list in front of him and was stunned. I then remembered that I had previously accepted a senior student from my school to study as a graduate student. ??And if we calculate the time, it is indeed time for recommended students to enter the laboratory... Thinking of this, he suddenly broke into a cold sweat. I was so obsessed with the project that I almost forgot about it. ??If I come back from Shengjing a few days later, I''m afraid it will delay the students'' graduation projects... ?So while reprimanding herself a few words from the bottom of her heart, she quickly contacted Li Yabos counselor and asked the other party to inform her that she could come to his office. "well" Chang Haona hung up the phone and sighed softly: "I''m still not used to it...I''m going to be a teacher now..." ??As he spoke, he pressed the power button of the computer, waited for a few minutes, and then entered the mailbox as usual. By this time in 1999, many foreign companies had begun to send advertisements to mailboxes. ?Especially in the past, Chang Haonan had registered accounts with many publishing houses in order to upload papers, so almost all of the content at the top were these unnutritious contents. Just when Chang Haonan was about to frame them together and delete them all, a slightly inconspicuous email hidden in the middle came into his sight. ? Judging from the senders suffix, it seems to be the email address of a research institution. ?This made him stop his right hand from reaching for the delete key on the keyboard. Then opened the email. The content is written in English. The sentence structure is a bit strange. But fortunately, I can still understand it. [Dear Professor Chang Haonan, I happened to see your paper on Ricci flow surgical tools published in the Annals of Mathematics today, and I was very inspired. Your research results are of great significance to the entire field of differential geometry, especially low-dimensional The proof of Poincar''s conjecture under these conditions has important significance...] Preceded by a routine short greeting. However, what Chang Haonan never expected was. Then it goes directly to the **** part. Based on the results of your paper, I came to the following conclusion: let g(ij) be a complete manifold on M, and satisfy g(ij)/=2R(ij), and M has bounded curvature... [I would like to ask, based on the above proof process, whether it can be deduced that on (-, T] (T>0), there are non-negative curvature operators and bounded curvature, and it is k-noncollapsed on all scales ?] ?The content of the email jumped so much that it was difficult for Chang Haonan to keep up. ?But I finally understood it. The other party proposed a volume reduction algorithm based on Ricci flow, and tried to use this algorithm to prove two non-local collapse theorems, which are used to estimate the local injective radius of compact manifolds. As for the identity of the sender In fact, its almost ready to come out. ??There are only a few people in the world who would directly send this kind of top journal-level results to communicate via email. Restricted to the field of differential geometry ?Chang Haonan gently rolled the mouse wheel. It was just as he expected. The signature at the bottom of the email is - ֧֧ݧާѧߧڧԧڧۧܧӧݧ֧ӧڧ. ?Perelman Grigory Yakovlevich. ??That is, the super master who turned the Poincar conjecture into the Poincar-Perelman theorem in the previous timeline. ?Furthermore, after reading this email, Chang Haonan finally understood why it took three years for his proof process to be widely recognized by the mathematics community - ?Its too jumpy. Even if the other partys starting point is Changs Lemma proved by Chang Haonan, even if what is mentioned in the email is still only a small step in the process of proving the Poincar Conjecture, even if the length of the email is already quite long... But it still took Chang Haonan almost a whole morning to fully understand it. It can be imagined how confused the mathematicians of the previous life were when they directly saw the proof process thrown out by the other party without any preparation... After sorting out his thoughts for a while, Chang Haonan clicked the "Reply" option and prepared to write a reply to the other party. At this moment, there was a knock on the door outside the office. ?Chang Haonan stopped moving. ??The computer in his office is connected to the Internet, and it is impossible to process confidential information on it, so there is no reason why he cannot see people. Please come in! The person who came was none other than Li Yabo who he had just called over. Teacher Chang, I heard the counselor said you were looking for me. Yes, its about your completion. ?Chang Haonan raised his hand and motioned for the other person to sit on the chair opposite. "Well" ?Li Yabo pursed his lips, as if he was really hesitant to speak. ?However, he finally said: I looked at the list of topics provided by the college before. Teacher Chang, it seems that you didnt submit a final topic? Awkward. Very embarrassing. Actually, Chang Haonan had indeed forgotten. In other words, as a new professor, he didnt even know that there was such a thing as submitting a thesis project. ?Of course, it is impossible to admit such an embarrassing thing in front of one''s own students. ??And considering the relationship between him and Tang Lintian, this may not be a big deal. So, Chang Haonan replied without changing his expression or heartbeat: Yes, because I am going to let you think about the specific direction and related field of research you want to do, and then apply for it. ?This time it was Li Yabos turn to be confused: "ah?" Ibut You should at least give me a basic range, right? ?Chang Haonan smiled slightly: No, as long as you are interested, have relevant basic knowledge, and have the ability to proceed, you can do it. Even if I dont have it on hand, I can still find a topic for you! Li Yabo is just a tactical supporter. Is this the benefit of being a mentor with a big boss? ?However, after being briefly surprised, he quickly gave his answer: Teacher Chang, I want to study the mechanical analysis and design of large-diameter thin-walled box structures made of composite materials! (End of this chapter) Chapter 799 Emails that influenced the entire history of mathematics Chapter 799: Emails that influenced the entire history of mathematics In the previous letter sent to Chang Haonan, Li Yabo had already expressed his hope to use structural mechanics as a research field. ?However, "structural mechanics" is still a huge scope after all, and most people can only choose a more specific direction of specialization from it throughout their lives. Let alone a mere graduation project. ?Of course, under normal circumstances, for undergraduate students, they are just handed over to a certain senior brother or sister, and they can get started while getting familiar with the research group and project, and then it is almost over. ?However, as Chang Haonans first disciple, Li Yabos treatment is naturally extraordinary ?Chang Haonan is going to take him with him personally. The kind that starts with formulating a training plan. But at present, Chang Haonan only has one turbofan 10 project left at hand. Li Yabo is still just an undergraduate after all. ??Whether from the perspective of ability or confidentiality, it is not suitable for him to be directly exposed to a project of this level ?Chang Haonan''s direct participation in the August 3rd Project was a special situation after all, and it cannot be regarded as a regular occurrence. So, just let the other party choose. Anyway, with Chang Haonan''s current status in the Science and Technology Commission system, he can get projects immediately as long as the direction is not too outrageous. And Li Yabo did not disappoint. Such a specific and targeted answer has obviously been considered long ago. Composite material thin-walled boxes are also a subject with a very wide range of applications. And very prophetic. ?The "box" here is not limited to horizontal and vertical hexahedrons, but also includes cylinders, ellipsoids or other irregular shapes. Basically regarded as the main research direction in the aerospace field in the next 20 to 30 years. ?Like the fuselage of large passenger aircraft, the casings of rocket missiles, etc., the amount of composite materials will gradually increase to reduce the structural weight. ?For example, when Eurocopter designed the NH90, it had already considered using a large number of composite materials in the fuselage. ? Its just that the operating environment of helicopters is indeed quite harsh. Giving up ease of maintenance and damage resistance for the sake of such a small amount of weight is a waste of watermelon, so Chang Haonan stopped it. ?However, at the end of the 1990s, the application of composite materials was still a well-established frontier field. It is really surprising that a senior undergraduate student could choose it so accurately. Tell me why you want to go in this direction? Chang Haonan asked. Didnt I work on a small UAV structural design project with Teacher Li Guang? At the beginning, because the engine power provided by Party A was insufficient, Teacher Li considered completely using carbon fiber instead of metal to make the body of the UAV. " But in the end, because no research in this area has been done before, Party A was worried that the design risk would be too great, and of course there were cost issues. In the end, magnesium-aluminum alloy was used. Chang Haonan was speechless for a moment. At the beginning, it is indeed risky to use a 100% composite body. ?At present, Huaxia aircraft generally use less composite materials, and their main applications are in secondary positions such as skins that do not bear high loads. So...how was the problem of overweight being solved in the end? This question is purely out of curiosity. ?The intersection between Chang Haonan and Professor Li Guang was limited to the time when they were just reborn. The other person served as a judge in Professor Liu Hongbo''s class and was shocked by his design plan. So the former is not quite sure what the drone project is about. Not solved. Li Yabo replied: Party A later replaced the piston engine in the original plan with a more powerful lightweight turboprop, so the overweight was also overweight. That project did not have high requirements for us. Basically, it only needed to be able to fly..." Okay. ?Chang Haonan never expected that it would end like this: Now that you are sure, lets go in this direction. After speaking, he lowered his head and thought for a moment: However, scientific research must be carried out step by step. Research on composite material structures is a brand new topic for our country...and the world, so we cannot start large-scale projects right away..." I have some relevant information and literature. I will give you a look today to familiarize yourself with the basic research methods of materials mechanics and structural mechanics. I will officially start after I apply for the project. "good." After talking about the project, Chang Haonan asked Li Yabo to go to Liu Chenchen to get a stamp to prove that he had indeed entered the research team and completed the topic selection process. Graduation project is regarded as a course that takes up more than ten credits in the training program. ??If the topic opening link is missing, although Chang Haonan can handle it, it is still more troublesome. "Huh..." Chang Haonan finally breathed a sigh of relief when he saw Li Yabo''s back disappearing from the door, almost revealing that he had forgotten about him. Then he returned his attention to the computer screen and began to think about how to write a reply to Perelman. A few days later. ?Moscow, Steklov Institute of Mathematics. ??Gregory Perelman, who has been working for more than ten hours straight and is about to go home for a break, opens his mailbox as usual and prepares to check if there are any new emails that he needs to deal with. This is his personal habit. Plan the next day''s work before you leave work the day before, rather than waiting until after you arrive at work that day. In the past ten years, this has always been the case, and it is unshakable. Invitation to Princetons Annual Mathematics Meeting Millennium Mathematics Prize The invitation for a review of the Journal of Mathematics ha seems to have been affected by the actions of the Annals of Mathematics. They are really stupid. If they continue like this, their influence will never be as good as that of the Annals of Mathematics ?Perelman moved swiftly into the recycling bin, one after another that he deemed unimportant. Even included a notice awarding him the Millennium Mathematics Prize and informing him to go and receive the award. He has no plans to leave Russia in the near future. At least I wont leave because of these trivial things. What Perelman loves is the beauty and mystery of mathematics itself. After successfully proving the soul conjecture a few years ago, he discovered that if he won an award for solving a certain mathematical problem, it would dilute his ability to solve a certain mathematical problem. The joy derived from the problem itself. From that time on, he refused to accept any personal awards, and even gradually tended to publish his results directly in the public rather than in the form of papers. "etc" ?Just when Perelman thought tomorrow would be another boring day, he suddenly caught a glimpse of an email he had been waiting for. To be precise, its a reply letter. Its finally here He clicked quickly. About a month ago, he was shocked when he saw this paper published in the Annals of Mathematics. ?There is actually another person in the world who is solving the application problem of Ricci flow in three-dimensional conditions with a similar idea. Moreover, he was half a step ahead of him. So, after getting some inspiration from it, Perelman wrote his thoughts in an email and sent it to the author of the paper. For more than a week, he did not receive a reply. Until today. Dear Professor Perelman, thank you for your letter. The content of the email has greatly inspired my research... Perelman skimmed over the polite remarks. Fortunately, Chang Haonan''s reply style was similar to his, and the second paragraph went directly to the point: I have verified your conclusion and there is no problem, but the derivation process of the theorem seems to be more concise and direct... [The function of the non-local collapse theorem is that it can give a local injective radius estimate, and the Ricci flow after surgery can still satisfy this property. In this case, based on Hamilton''s injective radius estimation theorem, it can be derived For the marked (Mk, gk(t), pk) that satisfies certain conditions, there must be a convergent subsequence...] ??The expression on Perelman''s face changed from relaxed to solemn, and then to excited... He quickly pulled out a ballpoint pen and a piece of paper from the desk next to him, lowered his head and began to calculate quickly. Thats right...this verification process should be more straightforward... ?About half an hour later, Perelman looked at the calculation process that only used one positive and negative space, and said to himself excitedly. ??Although the content of the theorem proved by Chang Haonan is exactly the same as what he sent before, the process is much simpler. In this case, I dont have to worry about those guys not being able to understand my proof process Perelman muttered as he took off his coat and scarf and returned to his desk. ?Obviously, the plans to get off work were ruined. Perhaps, I should go to China myself? ? He ??looked at the signature of CHANG Haonan at the bottom of the email on the computer screen, and had long forgotten the idea that he was not planning to go abroad in the near future. (End of this chapter) Chapter 800 Shock French Chicken all year long Chapter 800 Shocked French Chicken for a Whole Year At this time, Chang Haonan, who had just replied to Perelman''s email, naturally did not know that these emails exchanged between the two of them would leave a mark in the entire history of human mathematics, even because the time was close to 1999. On December 31st, it was dubbed the New Millennium Mail by the bad guys. In fact, according to his work efficiency, the reply should have been sent earlier. The main reason why Perelman waited so long in despair was because, by coincidence, the day after he received the email from the other party, a French team consisting mainly of Snecma and Dassault appeared. The defense industry delegation flew to China. The purpose is, of course, to concretely implement the joint research and development of the M88 engine after reaching a certain consensus in the preliminary negotiations. As the chief planner of the Aerospace Power Group and perhaps one of the most experienced people in China in exporting technology to foreign countries, Chang Haonan naturally became the person in charge of this matter. ?Of course, his presence is definitely not required in the negotiations. At least not at first. ?This can also be considered a little negotiation tip ?It is best to let the team''s second-in-command come forward to preside over the negotiations. This way, the standards are high enough, and if you really encounter any problems, you can also delay it by saying "it needs to be reported for instructions." ? And if the person who can make the final decision is present, it will lead to a lack of buffering in the situation. But not attending does not mean not paying attention. Remote control is more troublesome. Qin Province, Haojing. Since the negotiation in 1997, this place has almost become a window for Chinas foreign cooperation in the aviation field, especially its cooperation with the European Union. ?Perhaps its because the joint venture with Boeing did achieve a win-win situation, so even Europeans have some inexplicable affection for Haojing. ?? I have been to China several times for meetings or negotiations, and I have always mentioned that the venue should be set up here. ?Finmeccanica and Airbus even set up their offices in China in Haojing. ????It is a city that was not originally open to a high level of openness and allowed an inland city to start systematic foreign-related business. And this time is no exception. ??Although Dassaults military aircraft department and Snecma Group have not had much exchanges with China in the past ten years, they have still learned from the experience of their peers. Aviation hotel. It was actually the venue where the negotiations were held that year. Later it was acquired by Haofei Group and renamed. Twenty people gradually entered the conference room on the top floor and sat down on both sides of the long conference table. But no one spoke immediately. ?There was an eerie silence in the room. ?The eyes collided fiercely in mid-air. The atmosphere was at an extreme stalemate. Although the two sides have reached an agreement on "the need for cooperation," when it comes to digging into the details, since it is a sensitive military-related project after all, there are still many differences. The most critical one China believes that since you want us to help solve the problem, it should be a reasonable request to ship an M88 engine to us first, right? The French side''s response was that you are not kidding me. If you transport the engine to China, and then send it to a high-altitude platform for testing, wouldn''t you know everything? ?What is the difference between this and letting us run naked in front of you? They believe that the cooperation model between Bingcheng Aircraft Industry Group and Eurocopter should be followed, with China sending technical personnel to France to participate in the project. They also said that money is not an issue, and all Chinese technical personnel will receive business travel subsidies in accordance with French standards. We said that this is to solve the problem for you, and you should have paid the labor fee. The reason why Icefly and Eurocopter cooperate in France is because the two parties are each other''s suppliers at the legal level, and in turn Eurocopter Group We also sent people to our side to guide the development of the Z-12 helicopter, which is completely incomparable with the M88 situation... In short, the two sides just went back and forth like this, doing oral gymnastics all morning, but there was no progress. The afternoon negotiations began in this atmosphere. ??But different from the morning, this time, Liu Yongquan, the on-site person in charge of the Chinese side, had an extra notebook in front of him. A notebook full of notes. Finally, after a slightly awkward opening remarks, the afternoon session officially began. The focus of the dispute between the two parties, as well as their respective attitudes, seemed to be no different from that in the morning. Until Liu Yongquan spoke. The first sentence almost caused the Frenchman on the opposite side to almost break the defense. Actually, your concern about leaking technical secrets is completely unreasonable, because we actually now have a general understanding of the situation of the M88 engine and the problems it faces, so there is nothing to leak. ??The people across from Snecma were stunned after hearing this sentence, and for a moment they didn''t know how to respond. Liu Yongquan did not give them a chance to respond. He opened the book on the table. That was given to him by Chang Haonan before the negotiation. employers The contents inside To be honest, Liu Yongquan himself didnt dare to believe it. Thats why I didnt take it out in the morning. But seeing the negotiations reaching a deadlock, he had no choice but to consider taking drastic measures. Let me give you an example. He stared into the eyes of Ian Vista, a senior engineer from the Snecma Group opposite: Is the M88 engine prone to combustion chamber flameout and eventual engine shutdown when running at low speeds in moderate rain or above? ?Vestal''s whole body trembled suddenly, and he obviously wanted to answer subconsciously, but then he realized that this was on the negotiation table, so he stopped moving. ?However, Liu Yongquan could clearly see that the other party was just about to nod. ?This feedback gave him strong confidence. So, he continued: In addition, when the fan speed is maintained near 85% for a long time, the first-stage fan will have a high probability of entering resonance, causing damage to the blade structure and even the inner wall of the engine outer casing. "besides" ??Every time Liu Yongquan said something, the faces of Vesta and the opponent''s general manager, Charles Edsteiner, turned pale. And because they were originally white, when the former closed the book and raised his head again, there was no color on their faces... Finally, there is one more thing. Liu Yongquan closed the notebook again: After the engine is overhauled for the first time, after another 1,000-1,500 cycles, propagating cracks will be found on the surface of the turbine disc, but the original cycle life of this component should be much longer. You probably havent discovered this problem yet, but it does exist. If you dont believe it, you can test it after you return to China... The whole place fell silent again. Only this time, there was no even eye contact. Obviously, this wave just caused a lot of psychological damage to the opponent. "us" ?Ed Steiners voice was trembling when he spoke: We want to apply for an adjournment Liu Yongquan showed a kind smile, nodded, and signaled the other party to please please. (End of this chapter) Chapter 801 What were you doing earlier? Chapter 801 What have you been doing? Watching a group of dejected French people leaving the venue, Liu Yongquan shook his head mockingly. I had believed that Mr. Chang wouldnt have so many things to worry about ?While he was thinking this, he was also curious about where Chang Haonan knew such detailed information. It should be said that Liu Yongquan had some concerns about what Chang Haonan told him before, which is understandable - The latter has never been abroad and has never seen an M88 engine. But the descriptions of the defects seem real. Oh, no. Considering the reactions of Ed Steiner and Vesta just now. ?That TM is obviously true. and. ??If the previous ones can be interpreted as good intelligence work, then the last one is simply magic. ??Chang Haonan actually knows things that the French themselves dont know? But no matter what, judging from the reaction from the other side, at least it was quite shocking. Notify me and let the logistics team prepare dinner. Liu Yongquan put away his notebook and said to a local comrade next to him who was responsible for coordination. "ah?" ?The other party was surprised: "It''s... not even three o''clock yet. The negotiation has just started 20 minutes ago?" ??What the French just mentioned was to adjourn the meeting, not to end it directly. In other words, it will come back. Thats it for todays negotiations. The French need some time to accept the reality. Liu Yongquan looked outside the door with deep eyes. He believed that in the other room opposite, the French delegation must have a very complicated mood: To be honest, if you think about it personally, I think even if they can recover by tomorrow, their mental quality will be very strong...so go ahead and prepare. Since the person in charge of the negotiation said this, it was natural that others could not say anything more. They just nodded and left the venue quickly. Actually, Liu Yongquan''s estimate...is not wrong. In another room. ??The dozen or so members of the French delegation looked at each other in confusion. No one spoke. There was a certain amount of confusion and a certain amount of wariness in his eyes. Dr. Vesta. Finally someone spoke: That Chinese guy just now...are they telling the truth? Ian Vista shook his head with a blank expression. "no?" ?The man confirmed: What are those Before he could finish speaking, Vesta interrupted him: Yes, no...uh... Obviously, the doctor''s mind is also in chaos. After organizing the words carefully, he explained again: The first part is true, but the last one is that there will be propagation cracks after the overhaul. We really dont know yet, and we need to go back and test it. ?And Ed Steiner''s face was almost unbearable. ? He ??did feel that the Chinese people might have some profound insights into CFM56. But not in this profound way. What else do we need to test... Even if the last thing they said is false, we are still in big trouble! ?He said and slapped the table next to him hard: Are you sure that during the two days you arrived in China, including in the hotel room, no one accidentally said these things? Everyone shook their heads. One of them replied: Not to mention that we checked immediately after checking in and found no eavesdropping equipment in the room. Even if there were others we didnt find, it would be impossible to discuss such detailed technical issues in the room..." Since its not a leak...then someone is colluding? ?Ed Steiner put his hands behind his back, feeling that his brain was about to be burned. Mainly, Liu Yongquans performance just now was indeed too scary Just imagine, the new generation of weapons and equipment that you plan to use as the main force for at least the next 20 years has not even been officially put into service, and others are already familiar with various parameters and even defects. ??This is still a joke. ?Ed Steiner has always believed that although the food on his side is a little overdone, he still has to be vigilant. Even Americans who participated in the development process of the M88 engine are unlikely to know such details. But now he was a little unsure. In the past, it was only a joke that Number 10 Downing Street did not get the news as quickly as the Kremlin. Looking at it now ??The speed at which the Champs Elyses gets the news may not be comparable to... ?Once this kind of thinking spreads out, it cannot be taken back. Fortunately, Vesta next to her is relatively sensible: I dont think so. Whether its leaks or collusion, there is no reason why the Chinese could penetrate to this extent. "but" ?Ed Steiner paced restlessly back and forth in the room: What other possibilities are there? It cant be that they really analyzed it, right? Vesta thought to herself: If you ask me, who should I ask? But in the end, he shook his head and replied in the most decisive tone possible: I cant say for surewhat if? I think...thats already the case anyway, so why not try what they say... ?In the Rafale project, although Dassault and Snecma are partners, the interests of both parties are not completely consistent. ?Just like before, Dassault had thought about bypassing the latter and going it alone, using its own weight to get General Electric to let go and buy a batch of F404 engines to use first, at least to deliver the first batch of production Rafale C on time. Now, Vesta, as the representative of Snecma, also has his own ideas. That is, no matter what, let the M88 reach a usable state first. As to whether it will affect Rafales future exports Sorry, if the exported Rafale is equipped with F404 or other models of power, it is equivalent to zero for Snecma. ?Ed Steiner lowered his head and said nothing, obviously thinking about the war between heaven and man. He knew that he had no choice in this situation, but if the outcome of the negotiation was so ugly, it would definitely be a stain on his resume. "All right." ?After a few minutes, he finally took a long breath and seemed to have made up his mind: "Anyway, the current situation is indeed quite different from our original estimate." I personally agree with Dr. Vestas opinion in principle, but the final decision depends on the domestic will. In fact, before the negotiations began, most outsiders even believed that even if China and France were willing to cooperate on a large scale, due to a lack of mutual trust, the talks would definitely collapse as soon as the details came up. So, everyone is waiting to have fun. ?However, no one could have imagined that this negotiation would end in such a dramatic way. ?After the two sides were in a stalemate for half a day as expected, the situation suddenly took a turn for the worse. The speed is comparable to a landslide. The second day was a full-day adjournment. On the third day, both parties suddenly announced that they had reached an agreement on joint research and development Due to the sensitivity of military engines, engines that are still in the development process cannot be directly handed over to China Aerospace Power Group. Hence, Snecma will set up a research and development center in China and transfer at least 50% of the development work of the M88 engine from Europe to here. Then, that evening, the two sides held a signing ceremony... The onlookers had not even reacted at this time, let alone reacted. ?It wasnt until four days later that Ed Steiner, who had been humiliated (back) to the country, suddenly received a report from the public relations department. General Electric sent a message saying that through the efforts of the companys legal department, it has found a way to circumvent export restrictions, so starting from January 1st next year, which is this Saturday, it can provide us with F404GE402 engines Ed Steiner looked at the memo in his hand and felt his scalp numb with anger. He took several deep breaths in succession before he restrained himself from the urge to shred the document in his hand. What have you been doing so far? ?Now that I have signed all the contracts in the hope of ruining my reputation, and the M88 prototype has been installed and sent over, do you remember that it can be exported? Its too late! Sohow do we respond? ?The subordinate standing opposite looked at Ed Steiner''s uncertain face and asked cautiously. "reply?" The latter was so angry that he laughed outright: Tell the Americans not to worry, they can wait until we develop imperial warships to deal with the Galactic Empire, and then sell us the F404 (End of this chapter) Chapter 802 Varyag, set sail Chapter 802 The Varyag sets off ??The French broke out with unprecedented efficiency. On the last day before the new millennium, an IL-76 transport aircraft from the Volga-Dnepr Company, carrying a French technical team and other requirements specified in the agreement, set off from Paris and passed through St. Petersburg and IL. Kucik made two stops and arrived in Shengjing. After the previous negotiation that ruined peoples mentality, Snecma has basically entered a state of breaking the pot. ?The most obvious evidence is that what they packaged and sent was not only an M88-2 engine that was still in prototype state, but also a lot of technical data and development files that had been retained during the previous development process. Those who didnt know it thought they were coming to support the construction of Chinas aviation industry. Even Chang Haonan, who rushed to Shengjing to lead a team to pick up the plane, couldn''t hold back when he saw the goods being shipped out one after another from the cabin. Mr. Chang, you believe me. In the twelfth lunar month of winter, Liu Yongquan was wearing a dog-skin hat, and long white mist rose from his mouth when he spoke: During the negotiation a few days ago, I really told them that I know they are in a hurry, but dont worry, as long as the prototype and related materials can be sent over by the middle of next year. But they didnt listen. The delegation here hadnt even returned yet. They had already booked the plane and asked us when it would be convenient for the handover..." Thats all I have to say, I can only say that I can do it at any time, so... Chang Haonans original plan was to wait until the Turbofan 10 project came to an end, and then select some of the liberated personnel to help the French modify the M88. And considering that the opponent does give a lot, this improvement can be made a little deeper. Otherwise, it would be too difficult for a turbine front temperature to match a fourth-generation aircraft engine model with a thrust of only 7.5 tons. But now this has obviously disrupted the rhythm. After all, if the other party comes here with sincerity, he cannot leave it to others. Its okay, its my fault too. Chang Haonan looked at the staff who were unloading cargo from the cabin and sighed: What I told you may indeed be a bit too strong... Sigh... dont say that either. When talking about this, Liu Yongquans tone suddenly became cheerful: Its a pity that you werent there at the time and didnt see the expression on the face of the Frenchman opposite me when I finished reading those words To be honest, this is the first time Ive seen a white persons face be so white ?Chang Haonan glanced sideways for a moment, glanced at Liu Yongquan''s face, and decided not to disturb the other person''s happy memories. ?After a few minutes, the latter finally tightened his expression again: Mr. Chang, do you think I should continue to follow up on the work on the turbofan 10, or should I start working on the M88 now? ?Chang Haonan had previously said that Liu Yongquan would be responsible for improving the M88, but at that time he did not expect the progress to be so fast. "You are the deputy chief engineer. No matter from administrative or technical aspects, you have to follow up until the technology is finalized." Chang Haonan said and kicked his hands into his sleeves: There is no need to worry about M88. I estimate that after the negotiations are over, Snecma will be testing hard in China whether cracks will occur after 1000-1500 cycles of overhaul. Ill first find some comrades who have basically completed the work at hand and delay it for a while. After they detect the problem, its too late to start making serious improvements. "so" ?Liu Yong showed his full face: So that problem really exists? Chang Haonan nodded: Of course, will I still be able to deceive you..." Liu Yongquan thought it made sense, but he still felt that it was a bit outrageous for a plot like Zhuge Liang''s nature to happen around him. Then this kind of design flaw is probably related to the production process, which is not our strong point. Im afraid it wont be easy to modify it... Unexpectedly, Chang Haonan waved his hand: Dont think too complicated, its not a design flaw at all. "ah?" Looking at the stunned Liu Yongquan, Chang Haonan explained: If its really a design flaw, Ive never even seen their engine, how could I know so clearly "The actual reason is that I checked the files of the time when we cooperated with the French and found that during the reassembly process of the Snecma Group after the overhaul, in order to ensure the alignment of the turbine disc and the shaft, the wheel disc hole was Marking with electrochemical migration. "Originally, there is nothing wrong with this method. It has been used in the aviation industry for more than ten years. However, in order to increase the temperature in front of the turbine, the M88 has a new hot end coating. When marking, arcing will be caused and small defects will be produced. , and if it works for thousands of cycles under harsh working conditions, it will definitely expand into cracks..." "so" ?Liu Yongquans expression at this time was very exciting: Actually, its not a problem with the engine itself at all? "no." ?Chang Haonan replied simply and neatly: Effectively, its just a matter of replacing the electrochemical label with a traditional washable fluorescent agent. Liu Yongquans mouth twitched: I suddenly felt that...the price I proposed during the negotiations a few days ago seemed a bit too dark..." ??Even though I dont feel guilty about making money from foreigners, it still feels a little weird. At this time, Chang Haonan suddenly couldn''t hold it in anymore and lowered his head and laughed. Uh...what are you laughing at? Nothing, I thought of something happy. Whats the happy thing? "I suddenly remembered a story I had heard before. It said that a foreign engineer was invited to a factory in our country to repair a machine. After he arrived at the site, he walked around the machine and then hit a place with a hammer. , and then charge $10,000 for opening an order. Uhthen what? "Then the factory manager questioned why he charged so much for knocking. The other person replied that he charged one dollar for knocking once, but if he knew where to knock, he would charge $9,999." Chang Haonan finally calmed down his smile: I think we can ask DoubleTree to write a reverse version this time. The French will charge one euro for changing the marking method, but I know why they charge 99,999,999 euros for changing the marking..." Pfft Liu Yongquan couldnt hold back after hearing this... It is also on this day. Northern coast of the Black Sea. Nikolayev Shipyard. With a loud whistle from the pilot ship, the Varyag, which had completed unmooring, slowly left the outfitting dock where it had been berthed for more than ten years, driven by three push boats and two tug boats. ??At the forefront is the tugboat Nikolay Chikel hired by Lutron Group from the Russian Navy. After leaving the port area, it will be responsible for towing the giant ship behind it all the way to the far east. ?In the cab of the tugboat, Zhu Yuzhou, the Chinese representative in charge of the return mission, was looking seriously at the navigation plan drawn up in front of him. Since the Suez Canal Management Agency has clearly refused the Varyag to pass through the canal, they had to choose to go around the Cape of Good Hope at the southernmost tip of Africa, which added 6,500 nautical miles to the voyage. Moreover, the sea conditions near the Cape of Good Hope are complicated, which is difficult for a ship without power. It also means taking greater risks. ?Of course, no matter what, this is at least a solution. What worries Zhu Yuzhou even more is the Bosporus that he will face in a few days. Unlike the Suez Canal, where there are alternatives, there is no way around it. The good news is that Trkiye did not explicitly deny the passage of the tug fleet as Egypt did. The bad news is, they didnt explicitly agree either. In fact, according to internationally accepted navigation rules, since the Varyag at this time obviously cannot be regarded as a "warship", its entry and exit into the Black Sea should not be restricted. ?This is also the main reason why Luchuang Group chose to let the fleet set sail as soon as possible. But Zhu Yuzhou, who has been living at sea all year round, understands that the actual situation is not that simple Legally speaking, the Varyag obviously cannot be regarded as a "merchant ship" with immunity stipulated in the Montreux Convention, and China is not a Black Sea coastal country. If Turkey really wants to refuse passage, it will definitely find a reason. From a practical point of view, international navigation rules are often not applicable. ?For example, the Suez Strait can prevent you from crossing even without any reason. The last part is obviously someone who is making trouble. ?However, for Zhu Yuzhou, the person in charge of the scene, there is nothing he can do no matter how worried he is. ????????????????????????????? Since Hijikatas attitude is ambiguous, it means that they are not really trying to block you from letting you pass, but they want to negotiate terms. As for how to talk about it specifically... That''s something he can''t control. At the same time, the shore. ?An old man with gray hair and a slightly stooped figure stood on a watchtower, watching the Varyag''s mast disappear little by little at the end of the line of sight. ? Yuri Ivanovich Makarov. The previous director of the Black Sea Shipyard. In the end, they are all gone... ?He blinked his slightly cloudy eyes, and his eyes seemed to travel through time and space, seeing the grand occasion of three aircraft carriers being built here at the same time 10 years ago. But now, people and things have changed, and what is left in the shipyard is only dilapidation and desolation all over the land. Yuri Ivanovich, what has happened is that it is not necessarily a bad thing. Behind him, Valery Babich sighed softly, gently held the old factory director''s arm, and prepared to take him away from here: Rather than letting this ship soak in the sea water and completely rot, it is better to let it go somewhere else and continue to complete the mission of the year. Makarov sighed softly. ?How could he not know this truth? But when people get old, they will always think about the past. He could not control himself from imagining what the situation would be like if all three aircraft carriers were put into service if the alliance had not disintegrated. Actually, I think you should consider going to China with us. Babic supported Makarov and slowly walked down the observation tower along the rusty iron circular staircase: At least over there, you should be able to see the day the ship is finished. ?The first two batches of shipyard employees who joined the Friendship Plan have already arrived in China with their families. Originally, Babbage should have been on the first batch of lists. But he insisted on waiting until the Varyag left port before leaving, so he stayed until today. "never mind" Makarov replied softly: Im old, my body is no longer good, and I cant play any role. Even if I go, its just a decoration... Having said this, he turned back again, looked at the empty skyline, and then looked at Babbage beside him: Valery Vasilyevich, let you continue the work we didnt finish back then (End of this chapter) Chapter 803 Lets dance Chapter 803 Lets dance ?Originally, if it were normal, Chang Haonan would have stayed in Shengjing for one night after completing the airport pick-up. But the situation today is quite special. December 31, 1999. Strictly speaking, the last year of the 20th century is 2000, not 1999, and the first year of the new century is not until 2001. But people invented the concept of "millennium", which made this day very popular. ?At this time in the last life, Chang Haonan was still a struggling graduate student who was losing a lot of hair while working on his master''s thesis, so naturally he had no special experience. But now he discovered that activities related to the Millennium New Year... There are quite a lot of them. And it is generally celebrated by all sectors of society. ?So much so that he had to attend a social dinner It was jointly organized by several military-industrial groups in Beijing, including the Aviation Power Group. The original purpose was to celebrate the new millennium and to bring an end to the fruitful 1999. It is equivalent to a joint celebration banquet. ?Of course, if this is the case, then Chang Haonan will not participate if he does not participate. Among the groups many leaders, he is the only one missing. But as the organization went on and on, it also included the link of networking with other units in Beijing. To put it bluntly, it is to help older men and women who are not yet single to solve their personal problems. ?Originally, this kind of activity would be very embarrassing if the leader is present - The participants and leaders were embarrassed. But it is always organized by the unit, and leaders must be present. This year specifically, the situation is a little different. ?Chang Haonan, as a member of the aviation power group team, perfectly meets the above three conditions at the same time. Older, single, young. Thats right, in 1999, it was already a bit late to be 25 if you hadnt solved your personal problems. Although considering his Ph.D., this age is not that exaggerated. But does it matter? This is not important. The important thing is that others held a meeting, and in the end, in the absence of Chang Haonan himself, the decision was logically made to let him go to the gathering to speak a few words on behalf of the ten military-industrial groups. So, Chang Haonan had no choice but to rush back to the capital that afternoon after finishing his business... The entire event was held in a hotel in Beijing. It directly covers two semi-open halls on the entire floor. In this way, you can celebrate and socialize at the same time without delaying both. Chang Haonan changed his clothes and took a car to the hotel. While complaining in his mind that some little genius came up with this idea, he found the venue on the 6th floor under the guidance of the hotel service staff. Then, he saw Tang Lintian not far from the elevator entrance. ?The other party obviously also saw Chang Haonan who had just stepped out of the elevator, and went straight to greet him. Professor Chang, everyone is waiting for you. Principal Tang? ?Chang Haonan was a little surprised, but still shook hands with the other party: How did you As for friendship, there are many young comrades in the school who need this, so as the principal, I have to come over. Of course Chang Haonan didn''t believe this. ??In addition to them, there were also some theater, song and dance troupes and other units who came to the party this time, and I didnt see all their leaders coming. So, he probably considered that there are people who can speak to several military-industrial groups today, so he came to get acquainted with them. After all, about 60% of Beijing Airlines graduates enter these units every year. There is no harm in building a good relationship. Chang Haonan was dragged all the way into the venue on the east side of this floor. As he was about to enter, a staff member handed him a speech. Then, Tang Lintian patted him on the shoulder: Professor Chang, I, an old man, will not get involved in the affairs of you young people. I will go over there to drink first Then he left him alone at the door and went straight to the other side where a group of middle-aged people gathered. ?Chang Haonan looked at the other party''s back, and then at the two pieces of paper in his hand. ?At this point, he couldn''t let go, so he had to bite the bullet. When Chang Haonan appeared on the stage in front, the originally lively scene suddenly became quiet. About two seconds later, thunderous applause erupted. There are even those who are closer to the front and have already put on a posture of eagerness to try Aviation Power Group has a young and promising leader. This matter is public, so many people know about it. ?Of course Chang Haonans specific situation will definitely not be posted on the website. But on todays occasion, its really hard not to make people think about a question. Mr. Chang, is there a possibility that he is still single? ?At this time, Zhu Yadan who was following behind was more nervous than Chang Haonan himself. Dear friends attending the event, good evening everyone! Since it is an activity aimed at making friends, the atmosphere must be created in a relaxed direction. Even the leaders speeches are the same. This is also the main reason why no one has been willing to show this face in the past. Its not that I cant keep my figure down, its just that as a group of middle-aged and elderly people in their fifties and sixties, its really difficult to show a lively look. ??If you insist on pretending, it may lead to a dark history. ?However, Chang Haonan is really only 25 years old after all, so there is nothing wrong with doing this kind of warm-up job. Fortunately, the speech was not long, and Chang Haonan spoke quickly, so it only took less than five minutes to finish the opening session. Finally, on behalf of all the organizers of this event, please allow me to wish you all a great evening! He finished the last sentence, then handed the microphone to the real host next to him, and then prepared to run away. ??But this time the social activities have officially begun, and its not that easy to leave. Professor, do you want to dance together? A familiar voice came from behind Chang Haonan. He turned around and saw Yao Mengna wearing a dress. As a single young female teacher at Beijing Hang University, it was expected that she was drawn to participate in this event. ??But being invited to dance by his former senior sister, current colleague and subordinate was obviously not in Chang Haonan''s plan. The bigger problem is "But" ?Chang Haonan looked around. Yao Mengna''s aura obviously scared off many people who were eager to try, so except for her and Zhu Yadan, the rest of the people stopped a few steps away. In fact, as a normal person, Chang Haonan can also see what Yao Mengna thinks about herself. It is naturally impossible to say that we hate each other. ?But on the one hand, he feels that he is indeed still young and should devote his energy to work first, and not worry about personal issues. After all, his situation is special, and it is impossible for the organization to abandon him because he has no family, as it does to most people. On the other hand, Chang Haonan, who has been single for more than 40 years in his previous life, is actually a little afraid of this kind of thing... It is the fear that someone may suddenly break into your life and change all your past habits. So, he was still prepared to keep a low profile. But I cant dance ?Chang Haonan gave this somewhat embarrassing answer. ??This is not entirely an excuse for refusal. But he really doesnt know how. But now that Yao Mengna has stood up, it is obvious that she cannot give up easily: Its okay, I can teach you. ?She smiled: Rather, after so many years, I have finally found a place where I am good at but you are not good at. It is not easy..." Having said this, if I refuse again, I will really become a poet of the Ministry of Posts and Telecommunications. Chang Haonan nodded: Okay, but I might step on your toes. ?Yao Mengna on the other side was visibly relieved when she heard the affirmative answer. She took a lot of courage to stand up today. If she was rejected by Zhiqiu, she would really not know how to face the opponent in the future. Fortunately none of this happened. It doesnt matter, as long as you dont let your shoes fly out. She replied with a smile. (End of this chapter) Chapter 804 An old comrade’s bold idea Chapter 804 Old Comrades Bold Idea ?As the music sounded, Yao Mengna led Chang Haonan and quickly came to a specially set aside area in the middle of the venue to start on-site training. Just do this first, this, and then this ??With a real dance partner as a sparring partner, a few basic movements are not complicated for those who have at least a foundation in broadcast gymnastics. ?The only troublesome thing is that the ballroom dance moves are designed based on the height difference between men and women, which is about 10 centimeters. ?Yao Mengna is tall and can almost reach Chang Haonan''s eyebrows after wearing high heels. So sometimes you need to bend down to do it. I didnt expect you had practiced this before? Actually, Chang Haonan soon discovered that Yao Mengna was not a master, but when she jumped, she would not be able to step on her left foot with her right foot. Even if it is not a matter of temporary study, it should only be learned for a short period of time. Fortunately, as a social activity, the focus of everyones attention is obviously not on the quality of technology. "That was...when I was an undergraduate, the school was allowing the formation of student clubs. At that time, everyone was asked to sign up for at least one. I saw that the dance club was the first one in the selection list, so I signed up." Yao Mengna guided Chang Haonan to keep up with the music and replied: Actually, I originally thought that the dance club would teach some classical dance, but when I finally entered, I discovered that it was ballroom dance. ?Chang Haonan thought for a while and then continued: Most of the dances are young martial arts. Those who can become a monk and start practicing halfway are probably the only ones who can practice ballroom dancing... ??Some people who were eager to try it out just now realized that the two of them had obviously known each other for a long time, and finally the surroundings became a little quieter. I heard from Principal Tang before that you also received an invitation from the American Mathematical Society to attend their annual meeting? ?The occasion here is obviously not suitable for talking about work-related topics, but the matter Yao Mengna asked seems to be closer to life or gossip, so it doesn''t seem so inappropriate. Uhhe probably heard the second-hand news from somewhere. Chang Haonan felt helpless after hearing this: Its not the American Mathematical Society, its Princetons Annual Mathematics Meeting Of course, judging from the number of attendees, its about the same To be honest, if it werent for the inconvenience of my status, I would really like to see how capable those top mathematicians are. Yao Mengna naturally understood the specific meaning of "inconvenience" in Chang Haonan''s mouth, so she suggested with a smile: If you really want to, I think you might consider asking Principal Tang to come forward and invite some famous scholars to visit or give lectures in the name of the school? ?At this time, Beijing Airlines has not been included in the list of sanctioned entities, so those non-confidential majors can still conduct normal foreign academic exchange activities. ?Its just that Communication requires the subjective will of others. Chang Haonan shook his head: Our school has almost no voice in the mathematics community, and Principal Tang is not a professional in mathematics research. It would be hard to invite those math geniuses to come over. After finishing speaking, he added in his heart: Actually, if you spend money to pay huge appearance fees, its not hopeless... ?Of course, it would be a bit embarrassing to say this. Even in the mathematical community, there are only a few people who can truly treat money like dirt. However, this is a tacit understanding and is not suitable for public discussion. Furthermore, Chang Haonan is currently only "interested" in mathematics, and it is impossible for the school to spend a lot of money just for this personal interest. ?Although the funds in the past two years have indeed been much more abundant than before, for most projects they are far from the level of deep pockets, and they still have to be calculated carefully. It was true that it didnt exist in the past, but now it exists ?Yao Mengna raised her head slightly, looked into Chang Haonan''s eyes and said. "Well" The latter felt a little strange being stared at by her like this, and immediately changed his gaze: I just published a paper in the Annual Journal of Mathematics. At best, I can only be considered a nouveau riche... In fact, I am not even a nouveau riche. Its not like I won the Fields Medal. In short, not only Beijing Airlines, but also our country is still relatively lacking in theoretical exploration. Of course, it is not yet time to pay attention to this aspect..." After all, he was a rookie with a completely cute new configuration. By the time the first song ended, Chang Haonan already felt that his body was stiff and his limbs were sore. The level of fatigue was comparable to staying up late for a week to complete the project. Yao Mengna still has some unfinished ideas, but she also knows that today has made a good start. At this time, it is necessary to advance and retreat in a measured way. So he followed Chang Haonan out of the dance floor very generously. Okay, I should be waiting for you over there, so Im going to have something to eat. After saying that, she raised her hand to help Chang Haonan adjust his slightly wrinkled collar. ?Looking at Yao Mengna''s figure disappearing into the crowd, Chang Haonan sighed softly, turned around and prepared to leave. ?However, as soon as he turned his head, he saw Xu Yang, wearing a women''s suit, standing behind him. It looks like he has not just arrived, but has been here for a while. ?However, Chang Haonan breathed a sigh of relief. Researcher Xu, long time no see. Compared to Yao Mengna, who has "unfair intentions", although the relationship between Xu Yang and him is also very good, it can still be felt after being in contact for a long time. The former''s mentality is closer to "after many years of seeking defeat alone, I finally met a partner of equal strength." . In other words, it is a purely working relationship. Its just that Xu Yang himself is probably a little lacking in emotion, so he sometimes behaves a little strangely. The other partys performance also confirmed Chang Haonans thoughts. Mr. Chang, you are not particular about it ?Xu Yang shook his head with sadness and anger: "You published an article in the Annual Journal of Mathematics without making any noise. How come I didn''t realize that you were doing research on differential geometry before?" "You are not wrong. You have indeed not done any research before." Chang Haonan explained as he walked towards the door: Its something new I accidentally discovered in the past few months because I encountered some project problems... "well" Xu Yang is used to this kind of situation: "This is you. If someone else said this, I wouldn''t believe anything you say..." ?After just a brief chat with Xu Yang, Chang Haonan quickly came to the "middle-aged and elderly market" next door. "Hey, Comrade Haonan...why...are you here so soon?" The first person to see Chang Haonan was Zhu Linyu, general manager of the Aviation Power Group. ?? is also one of the "culprits" who arranged for the former to deliver a speech elsewhere. Mainly because he was older, he did not participate in the nearby drinking party. Hey...its just a speech. There are only a few words in total. Its over after I say it..." Chang Haonan picked up a wine glass filled with sparkling water from the side and touched it lightly with Zhu Linyu, who also had water in the glass: Leave that situation over there to the young people ?Zhu Linyu glanced at Chang Haonan with a strange look. In fact, most of the "youth" participating in the association today are older than Chang Haonan. But from the perspective of the group leader, it seems normal to say this... Its a bit strange. ?So he decided to change the subject. Since the people here are all from within several military-industrial groups, the topic can be relaxed a little: "Shengjing...I mean the cooperation with the French to develop the M88. How is it progressing now?" Very well. Chang Haonan said and drank all the liquid in the cup: Or rather...a little too smooth..." Following that, he spent about 5 minutes roughly recounting Snecmas operations to maximize subjective initiative. ?Although Zhu Linyu was not present, even though he was just listening to Chang Haonan''s words, his lips almost reached the sky. He belongs to the second generation of Chinese aviation people. It can be said that 90% of his career has been spent digesting and absorbing foreign technology The first 45% are from the Soviet Union, and the last 45% are from Europe and the United States. ??Now, as I am approaching the final stage of retirement, I have witnessed with my own eyes this scene that can be called a rebellion against Tiangang. It is impossible to say that I am not happy. Comrade Haonan. ?Zhu Linyu hesitated for a moment, and then tentatively said: In the field of aerospace development, the French have always had deep ties with the United States, such as the CFM Group, which was jointly established by General Electric and Snecma. Do you think its possible that this incident could lead to a breakup between the two of them? ?Chang Haonan saw through what the other person was thinking almost instantly In the field of aviation development, although the French are seriously scientific, they still have some special skills. This means that although it is difficult for them to develop high-level aviation engines completely independently, they can serve as a boost in the research and development process of other countries and play a very effective supporting role. As an analogy, it is roughly equivalent to a bard who buffs teammates. Therefore, if this incident can be used as an opportunity to completely tie the French aviation industry to China''s chariot, it will undoubtedly be of great benefit to future development. The idea is a good one. Its just I have to say... the chances are very slim. Chang Haonan made a decisive judgment: Actually, the reason why the M88 engine matter has reached this point is largely due to errors in judgment on the part of General Electric, rather than because they really want to force the French to come to our side. "In any case, as a NATO member and a European country, France cannot completely break up with the Americans, at least in the short term. Even this time, the dispute between GM and Snecma is basically limited to military use. fields, while the operations of more important civilian fields, such as CFM Group, have not been affected. "And I speculate that in order to appease the French, the Americans will definitely give them some sweeteners in the aviation field. In this way, even the best result for us is that the French stay in the middle and do not help either. " After some analysis, Zhu Linyus fantasy of letting himself go was dispelled. Fortunately, the old comrades have been here for so many years, so they still have this strength. And no matter what, this wave is considered a win. There is a first time and a second time for cooperation. ??As long as you wield the **** well, there is no corner that cannot be dug down. Well, you are the chief planner, so you should worry more about the groups strategic line. ??Zhu Linyu said and patted Chang Haonan on the shoulder: The future belongs to you young people... (End of this chapter) Chapter 805 Another plan of J-10 Chapter 805 Another plan for the J-10 At this time, another group of people who had gathered nearby and got excited about drinking also discovered Chang Haonan who was hiding in a corner with Zhu Linyu and chatting. How about it, Comrade Haonan. ?Lin Zuoming took the lead and walked over here. His loud voice was recognizable enough even in the noise: Didnt you stay at the association for a while? I heard Sister Shen from the groups labor union say that many old comrades with daughters at home asked him about your situation... After he finished speaking, friendly laughter suddenly broke out around him. No, noIll finish speaking Before Chang Haonan finished speaking, he was interrupted by Tang Lintian next to him: "No, I just went over to take a peek and found that Mr. Chang seemed to be dancing with a young lesbian..." Chang Haonan''s eyes widened when he heard this, and he was shocked. ??He clearly watched Tang Lintian turn around and leave before taking the stage, but the other party responded with a counterattack? A principal, instead of reading the textbooks, is interested in the art of war? Ahem He had no choice but to cough twice to demonstrate the embarrassment of being exposed: I was planning to say a few words and then leave, but I was stopped by an acquaintance In a joyful atmosphere, someone suddenly said half-jokingly: Comrade Haonan, if you really cant make up your mind, I happen to have a niece who just graduated from college last year and is working in the United Front Work Department of the Beijing Municipal Party Committee ?Chang Haonan turned around with his head covered in black lines, and what came into view was a face that impressed him slightly. ??He vaguely remembered that the other person seemed to be a person in charge of the nuclear industry system, because he accidentally saw the photo in a certain material when he borrowed the equipment. But I cant remember whether it was a nuclear industry group or a nuclear construction group. As for the name, it is even less likely to be remembered. ?This made him a little confused for a moment as to how to continue the conversation. Generally speaking, leaders of central enterprises at this level have been trained in different positions for 20-30 years. In this long process, intricate interpersonal relationships will be formed. Chang Haonan is a sudden rise. It has only been less than four years since he was unknown to today. Many people, especially those outside the aviation industry system, have never had much contact with him. Fortunately at this moment, Tang Lintian from the side intervened: Hey, Lao Pan, dont interrupt. We agreed not to interfere in the personal issues of young comrades ?Chang Haonan frowned, feeling that things were not simple. ??In the moment when he was away, they seemed to have done some shameful deeds without telling themselves... ?However, Tang Lintian''s paragraph also reminded him that the person who just spoke seemed to be named Pan Shengyan. The second-in-command of the nuclear industry group. You dont have a daughter, why are you so anxious ?Pan Shengyan pushed Tang Lintian''s arm away. ?At the moment, there is no such thing as a prohibition on alcohol, so halfway through the dinner, although it is not to the point of being drunk, it is basically a bit tipsy. I havent, but maybe the young people have some ideas. Im embarrassed to tell us old men... In fact, although Tang Lintian didnt see clearly what the person opposite Chang Haonan looked like just now, he basically made a good guess Since the first time he heard Chang Haonan speak about numerical calculation methods at a team meeting, he had already been thinking about which young female teacher to use to keep her in school. After all, the good news does not flow to outsiders. Beijing Airlines current status as one of the C10 alliances was at least 80% achieved by Chang Haonan. Its just that I havent found the right candidate. ??But today Tang Lintian suddenly realized that he seemed to have been in a state of darkness in the past, ignoring someone who had the closest relationship with Chang Haonan... So, we must not let others poach us. ?At this time, Chang Haonan found that he seemed to be the center of the gossip storm. In order to get out of it quickly, he had to quickly think of ways to change the topic. Just in time, he looked around and found that one person who was supposed to be here was missing: Then whatwhy didnt you see Mr. Liang Zhuoping from the Aviation Industry Group today? Sure enough, this method has been tried and tested repeatedly. ?Lin Zuoming, who was the first to start the "war" just now, said seriously: I went to Chengdu yesterday. Not only Mr. Liang, but also almost all the leadership team from the aviation industry followed me. ??Although the confidentiality level of the people here is high enough and the topic can be opened up a little, it is not a confidential situation after all, and it is still impossible to treat it as if it is in the office. ?But for Chang Haonan, its enough to stop there. ??Although the Chengdu side is responsible for a lot of models, the only one that can allow the top leader of the group to go there in person and stay for several days is of this level of importance is the J-10. To be precise, it is the second version of the J-10 plan after major changes. at the same time. Rongcheng. ??With the last ray of light before sunset, Song Wenchong and Yang Wei led Liang Zhuoping and his party into the final assembly workshop of Factory 132. ?At the two workstations on the left and right closest to the door, there are two aircraft parked symmetrically that have completed final assembly and are only to be pulled away from the production line by tractors. Even those who dont know anything about airplanes will notice at a glance that the two airplanes seem to be very different from each other. The most obvious thing is that the aircraft on the left is significantly "fatter" than the one on the right. Moreover, the lip part of the air inlet has only a bulging cocoon and no common mechanical adjustment device. But if you look a little more carefully, you will find that many basic characteristics of the two aircraft seem to be very similar Canard enlarged delta wing, single engine and single vertical tail, belly air intake... In particular, the relative positions between the front wings, main wings, vertical tail and ventral fins are almost exactly the same. ?Hence, anyone with a discerning eye will definitely be able to see that these two aircraft with completely different appearances are actually related in blood. For Liang Zhuoping, who has just entered the workshop, the most eye-catching thing is actually Under the wider fuselage of the aircraft on the left, two huge aerial bombs were hung side by side. Of course, its a model bomb. From the size point of view, it must be at least 1500kg. For the previous version of the J-10, only the innermost pylon of the wing could theoretically carry external stores of this size. But because there is no electrical interface there, only unguided iron bombs can be carried. Obviously, it is too abstract for a medium-sized fighter to engage in aerial bombing. So, it can basically be considered that the old J-10 has no ability to mount more than 1 ton of ammunition. After the updated design, at the expense of eliminating the belly auxiliary fuel tank, it can actually carry two engines at a time. This is obviously a huge improvement for multi-purpose combat capabilities. And, thats not all. On the side of the air inlet, there are two more light hangers that are not eye-catching. ?There are two 12 model bombs there ?Due to space problems, this position cannot mount the PL-11 with a larger wingspan, but fortunately this model should be just a transitional one. Active radar-guided air-to-air bombs will soon become the main equipment of the Chinese navy and air force aviation. ?Coupled with the same two auxiliary fuel tanks as before under the wing and the combination of two middle and two near, from the angle of the nose, it can even give people the feeling of claws and teeth. ??It is in sharp contrast to the delicate appearance of the one next to it... This is the J-10A aircraft that has undergone major changes. At the cost of losing some extreme speed and high-speed performance, it has gained a larger bomb load and range, which is more in line with the needs of a new generation of fighter jets for multiple uses. Song Wencong followed several group leaders and introduced. After speaking, he pointed to the original design on the other side: "This is the fourth prototype of the initial design plan. The first three have been tested for nearly 3,000 hours in total, which verified the feasibility and stability of the airborne equipment and the canard-delta wing structure. For this plan , we will not waste it and will use it for export under the name of J-10E..." ?While listening to Song Wencong''s introduction, Liang Zhuoping walked forward, circled half a circle around the aircraft, and came to the rear part of the aircraft. The tail nozzle of the J-10A presents a complete silver ring, and there is no convergence adjustment piece design. This is the most typical feature that distinguishes the turbofan 10 from the AL31F in appearance. But Liang Zhuopings face didnt look good The Turbofan 10 can be said to be the greatest achievement of China Aviation Industry so far. However, this achievement already belongs to the brother unit next door. ??Although it is said that group restructuring is a requirement from superiors that must be implemented, his scope of authority was instantly reduced to half of its original size. It is absolutely false to say that he does not feel uncomfortable at all. It''s just human nature. At this time, Yang Wei on the other side also noticed Liang Zhuoping''s eyes constantly wandering around the tail nozzles of the two aircraft. So, he quickly introduced: "In order to make up for the increased weight of the A-type aircraft, General Manager Chang Haonan of the Aviation Power Group specially designed a turbofan 10B engine with increased maximum thrust, which can ensure improved performance in the basic air combat configuration of 2 medium and 2 close. The overall mobility of the model is stronger than the previous plan. This reflects high emotional intelligence. In fact, the turbofan 10B was the original plan designed by Chang Haonan, while the turbofan 10A was specially designed to reduce the thrust and increase the service life of the J-11B because it was impossible to achieve supercruise even if the thrust was increased. ??However, according to Yang Weis explanation, it sounds like the Turbofan 10 project team has made work adjustments in order to coordinate with the No. 10 project. Sure enough, Liang Zhuopings own mood, as well as his views on Chang Haonan and the entire Aerospace Power Group, instantly improved several notches. The expression also softened. Did everything go well with the ground test of the engine? "all the best." Song Wenchong replied: Both the 606 Institute and Liming Factory sent technical teams to assist us in testing on site. Moreover, our quality control level has also been significantly improved in recent years, and the situation of Unit 1001 will never happen again. ?When Unit 1001 first rolled off the production line, if the surge monitoring system developed by Chang Haonan had not come into play, the engine might have been damaged during ground testing. ?This incident has also become a watershed for professional quality control in the aviation industry system. ?Liang Zhuoping nodded with satisfaction, then turned around, glanced at the leaders of Project No. 10, and then spoke slowly: In accordance with the instructions of the General Armament Department and the Commission of Science, Technology and Industry for National Defense, the appearance of the Project 10 prototype at the 50th anniversary National Day military parade seemed to have caused some misleading to overseas intelligence agencies. Although it is not yet certain whether this misinformation can be used to my advantage, my superiors still require that the test flight of the improved J-10A prototype should be conducted as low-key as possible. Do you understand? ?Song Wenchong and Yang Wei looked at each other and replied in unison: "yes!" (End of this chapter) Chapter 806 Is there really a big shot coming? Chapter 806 Is there really a big boss coming? In fact, this request to keep a low profile as much as possible was suggested by Chang Haonan and Ding Gaoheng after the National Day military parade. ? Its just that his current identity on the surface has nothing to do with the Aviation Industry Group. If he spoke directly, it would inevitably be suspected of interfering in the daily work of his brother unit, so he specifically asked the latter not to mention his name. The reason why I suddenly came up with this idea was naturally inspired by the incident of the Turbofan 10 essay. The new engine installed on the J-11 was a huge surprise to almost everyone, so no one could figure out the details of this model for a while, and relevant intelligence analysis was mainly based on past evidence or simply fictional literature. . Such confusion ultimately led Snecma to find China with their M88 engine, and also led to the Americans'' failure to salvage this cooperation at the last moment that was beyond everyone''s expectations. The situation of the J-10A is actually similar to that of the WS-10 - ??Now the whole world knows that China has a single-engine medium-sized third-generation fighter jet. It also knows what this model of aircraft looks like. It even knows that it is called the J-10. But only a very few people know that the J-10 also has an isomer. ?This news may not be able to be kept secret for a long time, but the greater the information gap and the more confusing the news circulating outside, the more likely it is that some unexpected benefits will be obtained. As for the specific implementation... Basically, on the one hand, we should pay close attention to wall-climbing parties, and on the other hand, we should try to fly in the early morning or evening hours. Considering that the basic characteristics of the old and new J-10 are relatively similar, if you take photos at a longer distance, there is a high probability that you will not be able to distinguish the details of the two models if the clarity is insufficient. ?Of course, to be honest, these operations are still because there is no absolute technical advantage. Otherwise, just like the United States now, as long as you announce any project, many countries will rush to ask for cooperation. ?There is no need to waste such effort... After announcing the matter, Liang Zhuoping turned his attention back to the two planes. Speak of the word, Comrade Wen Cong. He looked at the J-10E a little further away and asked Song Wenchong: I think foreign customers...especially those who can only maintain a small air force, may value the multi-purpose capability of one aircraft. Can the previous design really meet their requirements? We have also discussed this matter. Song Wencong quickly explained: "The biggest problem with the old plan is actually the insufficient range. Especially for our country, in actual combat situations, the two innermost attachment points of the wing are almost bound to the auxiliary fuel tanks. It is also out of this consideration, and in order to save some The wing space accommodates fuel, and there was no electrical interface designed for these two locations from the beginning, only the fuel lines were connected. " "But for foreign users with limited land area, the range without auxiliary fuel tanks is not unacceptable, so we plan to connect the two inner wing pylons to the data bus on the mass-produced model, so that they can To a certain extent, it solves the problem of insufficient multi-purpose capabilities. ?At this time, the F16 is not equipped with a conformal fuel tank, and the range benchmark of single-engine medium-sized aircraft is not high. And at least in the short term, the countries that will buy Chinese fighter jets will still focus on homeland air defense as their main mission. Even if they want to strike on the ground, the target will be limited to within or near the national border, and the need for range is indeed not urgent. So if the J-10E makes up for it in this way, it wont show any particularly eye-catching shortcomings. Therefore, after hearing this, Liang Zhuoping nodded with satisfaction, and then said: "Before I came here this time, I heard Director Ding say that the Power Group has exported its third-generation aero-engine technology to Europe, and we cannot lag behind in this regard. Project No. 11 cannot be used for export according to the agreement. So, it depends on your performance. In fact, the joint development of the M88 engine is basically a well-known fact, but everyone within the military industry system knows some relevant rumors. After all, aviation is known as the crown jewel of industry, and France has been one of the main importers of China''s aviation technology in the past. ??Now we have reverse technical support, which is equivalent to the story of the poor boy''s counterattack in Hedong and Hexi in the fifty years. Writing something that everyone calls old-fashioned in the book, but it happens in reality... Everyone feels happy. ?Liang Zhuoping moved Ding Gaoheng out, which can only be said to give this matter a real hammer, and it can also be regarded as an incentive. After a slight pause, Liang Zhuoping continued: We can give full play to our advantages in channels. After all, the Aviation Technology Group is still on our side. Those countries that have purchased air force equipment from our country in the past should also have easier communication. ?Song Wencong didnt answer and just nodded. What Liang Zhuoping said cannot be said to be wrong. Its just not very maneuverable. Aviation Technology does have contact channels with departments or personnel responsible for arms procurement in many countries. But the problem is that the weapons and equipment China exported in the past, especially air force equipment, were at the low end, and the users were basically countries with little economic strength. No matter how affordable the J-10E is, it is still a serious third-generation aircraft and cannot be sold as cabbage. In other words, we must open up new customers. When it comes to finding high-value customers, Mr. Chang from next door seems to be better at it... ?Of course, these difficulties can only be thought about, and it would be a bit pretentious to say them out loud. It is always a worry about happiness. In the past, when only J-7 and Qiang-5 could be sold, how could it be our turn to ponder this kind of question... In short. The millennium has arrived peacefully. ??Chang Haonan also spent the three-day New Year''s Day holiday peacefully and contentedly, and then re-equipped and prepared to face a new challenge. ??And by the way, I can help my disciples start a project. ?Of course, for him, there is no need to bother Ding Gaoheng with such "little things". Considering that it was just in time for the initial project report, he only needed to see if any relevant companies were looking for Party B through the Seiko Plan platform. Therefore, after making a brief appearance in the Aviation Power Group, Chang Haonan returned directly to Beijing Hang University. As a result, before his **** was warmed up, he saw Tang Lintian walking into his office from the outside in a hurry. Principal Tang? Looking at Tang Lintian who was sweating profusely in the cold winter, Chang Haonan felt a little puzzled and asked half-jokingly: Are you...worried that our computing center will be affected by the Y2K bug? Period before the turn of the millennium, the so-called "Y2K crisis" was a very hot topic. So much so that some professional computer researchers have begun to worry In some very early computer systems, years were indeed represented using only two digits, so there would be errors in date processing after the transition from 99 representing the year 1999 to 00. ??And if this kind of mistake breaks out all over the world at the same time, a huge crisis may break out. But in fact, there are very few devices that will actually be affected by this, and most of them have ways to remedy it, and there will be no catastrophic consequences at all. Previously, it was completely unfounded worries, or in other words, it was just media hype. Hearing this question, Tang Lintian quickly waved his hand: Of course not...how could I believe that kind of thing... I couldnt get through to you just now, so I came here to inform you of an urgent matter. Hearing that it was business, Chang Haonan quickly regained his serious expression: I went to the Gang Group before and just arrived at the office. Whats the emergency? At this time, Tang Lintian finally recovered a little, at least his breathing had calmed down, and he said to Chang Haonan word by word: Gregory Perelman, a researcher at the Steklov Institute of Mathematics in Moscow, took the initiative to contact our school and said he hoped to come for an academic exchange visit. It was quiet in the office. Uhso? Chang Haonan looked blank: Justthats it? (End of this chapter) Chapter 807 Husky among dogs, junior high school Chapter 807 Husky among dogs, middle school... ??When he saw Tang Lintian hurried in just now, Chang Haonan thought it was the Torch Laboratory, or that some project had a serious problem. ?Especially when the former said that he came to see him in an emergency, to be honest, his heart even skipped a beat. result Good guy, just a normal scholar coming to visit. How do you describe this feeling... Just like I had already built four lines of defense, waiting for the enemy to attack in a large scale, and was ready to fight to the last man. ??As a result, the opponent charged up a punch and didn''t even penetrate the warning line. But Tang Lintian obviously doesnt think so. Nothats what it means His face was a little tense: "This is a big deal, okay? Just an hour after I got to work today, the principals of Qinghua University, Yanda, Jinling, Aurora... basically the top schools in the country in terms of mathematics majors almost had my phone numbers ringing. " Thisokay Chang Haonan wiped the sweat from his forehead: So they called because ?Tang Lintian waved his arms excitedly: Of course I want to ask how I invited Perelman here! Hey, what did you tell them? ?Looking at Tang Lintian who was as happy as a child, Chang Haonan was happy to be the compliment. And the former is also very cooperative: "I told the truth, saying that I didn''t invite him and he insisted on coming." "Then what?" Then they didnt believe it and insisted on saying that it was unethical for me to do things in hiding... They also said that after I set a time, I must inform them and they would also bring people over... ??That is to say, there are only two of them in Chang Haonan''s office. Otherwise, as long as there are two viewers, they will probably be rewarded with two coins after hearing this cross talk... Ahem Tang Lintian, who had regained a little normality, coughed twice: "Although Professor Perelman did not explain clearly why he thought of coming to our school for exchanges, I guess that since the founding of our school, Professor Chang is the only one who has been directly related to the mathematics community, so it must be you. Came here for you..." "Um." ?Chang Haonan touched his chin and said in a calm tone: "Actually... about half a month ago, Professor Perelman sent me an email to discuss the role of the article I published in solving the Poincar conjecture. Later, I sent him a reply. seal up." "ah?!" ?Tang Lintian was shocked at that time: Is there such a thing? Why didnt you tell me then? "This way I can be mentally prepared in advance... You don''t know, my first reaction after receiving the news this morning was that the other party was lying to me..." Chang Haonan spread his hands and replied helplessly: "What''s there to tell you... It''s just a normal email exchange. If I just tell you every time an email like this comes, then you probably won''t have to do anything else." Its just that I didnt expect that the other party would come directly to do academic exchanges When he said this, Tang Lintian felt that it made sense, so he had to give up worrying about this issue for the time being: "Okay... no matter what, the other party must have come here because of you, so I have to ask for your opinion first about the itinerary. I can''t let him come over and not be here, otherwise it will become a joke in the academic world. " So what did Moscow say? When are they planning to come? Chang Haonan said as he opened the brand new 2000 desk calendar on the desktop to check the date. They didnt say. ?Tang Lintian shook his head: It seems that it can be done at any time, the time is up to us. Ohthis standard is indeed quite high... This surprised Chang Haonan, so he asked again: "As for the schools you just mentioned, since they have agreed to let others come over, they still have to stagger their academic activities." No need either. ?Tang Lintian is straightforward: No matter what academic activities they have, no matter who they invite, it is very unlikely that they will have a higher status than Perelman, so just say it and it will be over. If there is a conflict, let them turn it down! So exaggerated? Chang Haonan was really shocked by the importance that the domestic mathematics community paid to Perelman. "This is an exaggeration..." Tang Lintian said matter-of-factly: "He is a top mathematician in the world, and I heard that Perelman has a weird personality and rarely participates in such visiting activities. He has only been to the United States once before, and almost all universities in the United States offered him high salaries to stay. Next, I ended up going back to Moscow..." For such a person to come to our place for exchanges and visits, the weight is naturally different... ?Chang Haonan nodded, probably understanding what the other person was thinking. At this time, he also finished turning over the January part of the desk calendar. Then it will be at the end of January, whatever date it is. "good!" Tang Lintian clapped his hands, stood up immediately, said goodbye briefly, and left the office in a hurry. "well" Chang Haonan looked at the figure disappearing from the door and sighed, thinking that there was no need to be so surprised, the good days were still to come... Then he turned around and continued looking for projects suitable for Li Yabo... ?Later in the day. The Black Sea. ??On the tugboat Nikolai Chikel, Zhu Yuzhou was holding a maritime satellite phone in one hand and looking at the navigation chart in front of him with a gloomy expression. According to the plan, they will pass through the Bosporus in about 18 hours at the fastest. But there is still no accurate attitude about Trkiye from the country. ?At this moment, the satellite phone in his hand suddenly made a beeping sound. He picked up quickly: This is Nikolay Chikel, please speak. ??A familiar voice came from the other end of the phone. It was Director Ye Junqi who was responsible for navigation planning and liaison tasks. ?Before Zhu Yuzhou flew to Nikolayev, the two had held many meetings together on the formulation of plans to return to China, and they were very familiar with each other. Nikolai Chikel, please slow down immediately, I repeat, slow down immediately! ?Ye Junqis voice was a little urgent: Sail as slowly as possible while ensuring safety. ??Zhu Yuzhou quickly signaled the captain next to him in Russian to reduce the speed, and then put the receiver to his ear again: What happened? ??The cost of a maritime satellite phone is as high as tens of yuan per minute, but at this time, he can''t care about that. Turkey suddenly questioned the way we passed through the Bosporus, believing that the risk of towing unpowered ships was too high. Once an accident occurred during the process, it would affect shipping throughout the Black Sea-Mediterranean Sea, so it refused us passage. " Hearing these words, Zhu Yuzhou''s heart sank. The thing he was most worried about happened. So what is the other partys request? ??Zhu Yuzhou said and looked at Captain Da Mao, who was directing the tugboat formation to slow down. At this time, he was still a little lucky, thinking that it might be possible to solve the problem through technical means. However, Ye Junqis answer directly dispelled this possibility: Hijkhi said that we should either equip the Varyag with power to self-propelledly pass through, or use a semi-submersible ship to transport it through. This is impossible! The outrageous request made Zhu Yuzhou shout out directly. ???If the Varyag can be installed with power at the Black Sea Shipyard, then the ship may not be in the hands of China at all. As for semi-submersible ship transportation, it is even more ridiculous. ?This is a 300-meter-long aircraft carrier...how can a semi-submersible ship transport such a behemoth? Obviously, this is not an attitude that wants to solve the problem at all. Dont be impatient yet. Ye Junqi comforted him and said: We are currently actively negotiating with the Turkish authorities, so we asked you to reduce the speed and help us buy more time. Okaybut we cant stop completely with such a big ship in tow. ?Zhu Yuzhou leaned down and looked at the chart with a magnifying glass for a while, and then said: Even at the slowest speed, we will enter the Bosporus in 40 to 45 hours. If we have not obtained the navigation permission by then, we will have to find a way to turn around and return. There was silence on the other side of the phone for a while. I know, we will do our best. Ye Junqi replied. (End of this chapter) Chapter 808 Different interests demands Chapter 808 Different interests demands The two unfavorable plans given by the Turks were obviously not prepared to let the ship go easily. But since the other party pretended to put forward a series of conditions instead of directly rejecting it like Egypt, it is not impossible to talk. ?However, what they really want is obviously not the two things on the surface. Perhaps he wants to make a profit from it. ?However, anyone with a discerning eye can see that Luchuang Group is basically a shell now, and there is nothing worth spending so much time on. Hence, the target of their blackmail is obviously the Chinese official. ?Of course, there are no moral issues between countries. It is nothing more than dialogue based on strength. ?Now that the matter has been made clear, there is no need for everyone to be secretive, and we can take off our vests and talk about it in person... ?So, under the pressure brought by the 40-hour countdown, the matter was quickly reported to the capital layer by layer. Next, it will be a head-to-head contest between the two sides. Including many other countries, they are also paying close attention to the development of this matter. Firstly, it involves a semi-finished aircraft carrier that is entirely likely to be rebuilt. Secondly, we are also observing a sample. A sample of soft confrontation between countries of different sizes. In fact, Chang Haonans indirect intervention in the situation in the Balkans last year had a far-reaching impact even beyond his own expectations Although NATO unilaterally declared victory, anyone with a right mind knows that the Allied operation actually failed. In other words, a superpower assembled the most powerful military group in the world. Facing a medium-sized country with many internal and external troubles, it didn''t matter that it failed to defeat the opponent, but it was actually defeated by two stealth fighters. airplane. Of course you can explain that the multinational coalition forces are just superficial brothers, but in fact they have their own evil intentions. In particular, the Americans launched an attack on the euro almost immediately after starting the Allied Forces operation, and also carried out an "accidental bombing" This outrageous and ruthless operation of civilian buildings housing the media eventually led to the collapse of the attacker''s already fragile alliance. But no matter what, with such a huge advantage, it ended up being such a mess. It was absolutely a shameful thing to go around in circles. This leads to two results. First, after the end of the Cold War, the image of NATO''s heavenly soldiers and generals that it had managed to cultivate, if not collapsed, was at least greatly affected. Second, every country has begun to think about whether a big country, especially a big country that is not at a crushing advantage in strength, has any other options besides hard confrontation when facing a regional power with medium strength. The wave between China and Trkiye obviously fits this model. Chinas comprehensive national strength is undoubtedly advantageous, but it does not seem to have direct means of influence on the Mediterranean coastal areas. ?So, the process and results of this round of confrontation, or confrontation, are very interesting. However, the development of the incident did not go as various countries imagined, and the two sides immediately began "cordial and friendly" exchanges. Information collected from multiple sources shows that the atmosphere is eerily quiet. ?Ankara did not make further representations to the capital, and the latter was very patient and directly started a sit-in war. ??Some people have even speculated that Turkey, like Egypt, may have been threatened or tempted by a certain external power and decided to lock the Varyag tug fleet in the Black Sea at all costs... ?There is also speculation that the two sides have established some kind of communication channel that can avoid all outside detection, and negotiations are currently underway. In short, various rumors that are either targeted or extremely outrageous begin to permeate the entire world... But in fact, the situation is much simpler than outside speculation - That is, after announcing to the outside world that there are risks for tugboats passing through the Bosporus, Turkey has never been able to reach a consensus on what conditions it should impose on China in the follow-up negotiations. The factions headed by the Central Bank and the Ministry of Finance believe that the country''s economic and financial situation is in dire straits, and the most direct method should be used to let China pay a large amount of money, paid in hard currencies such as euros or US dollars, to ease the Asian financial crisis. Inflation caused by the crisis. ?This opinion has received support from the highest level. After all, in the past 1999, the Turkish lira experienced an astonishing inflation of more than 100%. If nothing is done, the national economy will soon spiral into the sky. The other group, represented by the Ministry of Culture and Tourism, is also concerned about the financial situation, but their ideas are different. They believe that China should take this opportunity to arrange a certain number of tourists to Turkey every year, so that foreigners come to spend money. It can alleviate the economic crisis from its root causes. But the third group of forces represented by Turkish Aerospace Industries and the Ministry of Industry and Technology have completely different ideas. They believe that the currency situation is completely hopeless and it is not worth wasting precious chips on such things. Moreover, whether they are asking for money directly or tourists, the international outlook is really poor. Therefore, it is better to take this opportunity to cooperate with China to develop some industries, especially projects related to the defense industry. Considering that the latter has also experienced a stage of development from scratch, I think we can learn a lot of useful things from it. By the way, it can also create a lot of jobs, which is not completely unhelpful to the economy. ?At this time in 2000, Ankaras top leaders were completely unable to suppress the different voices below due to a series of abstract operations in the past. So there are many supporters of the three voices. ??More importantly, it all sounds reasonable. ?So, they got into a fight during the closed-door meeting... ?While the other side is fighting, China cannot stand still and has already begun preparations for negotiations. But preparation is preparation, and it is indeed a bit unsettling to be unable to receive the conditions thrown by the opponent. After all, if the tugboat reaches the strait but cannot pass it, it will either pay a high fee to temporarily park at a nearby dock, or it will turn back to the Nikolayev Black Sea Shipyard. No matter which one, the price is not small. Commission of Science, Technology and Industry for National Defense, Director''s Office. Ding Gaohengzheng and Chang Haonan were sitting opposite each other, each holding a cup of tea in their hands. Xiao Chang. The former said while tapping his fingers rhythmically near the mouth of the tea cup: Turkey has officially stated that it will not allow our tug fleet to pass through the Bosporus. Chang Haonan was naturally not surprised at all about this incident. Or rather, he started planning this matter about half a year ago, and now he has a lot of confidence. Even if it is not completely undamaged, at least it can be settled at a very small cost. Since we delayed expressing our stance until now, Im afraid its not really going to block us. Chang Haonan confidently judged: I guess they have already proposed the so-called reconciliation conditions to us in private, right? After speaking, he took a leisurely sip of tea and waited for Ding Gaoheng''s next words. However, the other party put down the teacup, supported his chin with both hands, and shook his head seriously: Thats the problem. As of now, almost 20 hours have passed since the last message we received from Ankara, but they have not made any further offers and have even remained silent and completely unresponsive to our unsolicited inquiries. "ah?" The confident smile on Chang Haonan''s face froze. (End of this chapter) Chapter 809 There is also a backup plan Chapter 809 There is still a backup plan As soon as Ding Gaoheng finished speaking, countless possibilities flashed through Chang Haonan''s mind. The worst scenario is that because he has significantly changed the direction of the world line, Turkey for some reason decides to go all the way and directly locks the Bosporus Strait like the Suez Canal. It is said that Even the heavens won''t let me pass. If this happens, it will be really difficult. After all, his previous preparations were all based on the premise that "the Turks can negotiate". ?Chang Haonan must admit that he was a little panicked. ??If it is a smaller ship, then there is a theoretical route that enters the White Sea through the Volga-Don Canal, then enters the Baltic Sea through the White Sea-Baltic Sea Canal, and finally enters the Atlantic Ocean. ??However, it is obviously impossible to drag an aircraft carrier through the inland canal. The Bosporus is a hurdle that must be overcome. If you can''t get through, you''ll be in big trouble. "so" ?Chang Haonan''s hands holding the tea cup trembled slightly because of too much force, and some tea even spilled out. But he did not notice this, but asked: Is it possible that extra pressure from countries outside the region has led the Turks to decide to completely turn against us? The moment these words came out of his mouth, Chang Haonan relaxed a lot. After thinking about it for a while, my mind calmed down The possibility of this happening is actually very low. After all, even during the Cold War, Turkey was properly considered a restless element in NATO. Just because of its important geographical location, it still had a good status among U.S. allies. After the end of the Cold War, with the loss of its status as a bridgehead to contain the Warsaw Pact and its long-term policy of kneeling down to the EU, the relationship between Turkey and the United States became more and more superficial brothers. Many aid projects negotiated in the 1980s have stalled. , Turkey itself also began to pursue a relatively independent development route. In this context, unless Ankara suddenly suffers from some serious illness, it will definitely leave some room for maneuver. Ding Gaohengs next answer also confirms this point: "After Luchuang reported the situation, the superiors did consider this possibility, but there is no sign to prove this, including analysis of public reports from the United States. They seem to be confused about the current situation... " What about other countries? ?Chang Haonan also found it a bit confusing: Isnt there any noteworthy statement? Ding Gaoheng shook his head: After all, it has been less than 24 hours since the incident occurred. For some countries that are not very efficient, it is estimated that there is no time to make any effective response. Thats true ?Chang Haonan was immediately amused. ??He has had more interactions with foreigners in the four years since his rebirth than in the forty years before his rebirth combined, and he has also seen many manifestations of species diversity. Ding Ding Gaoheng''s half-joking words made Chang Haonan think of a possibility. "etc" He quickly regained his composure: Director Ding, do you think Turkey itself is included in the ranks of these less efficient countries? The office fell into silence again. After a long time, Ding Gaoheng took off his glasses and rubbed his eyes that were unable to open due to fatigue: If thats the case, then the other side is just a grassroots team... Chang Haonan just wanted to take over the conversation and make a sharp comment, but at this time Ding Gaoheng continued: Well, considering their performance over the years, I think its not impossible After all, it seems that no normal country can achieve an average inflation rate of more than 80% in a ten-year cycle After saying this, the two of them did not hold back. They smiled and shook their heads almost at the same time. ??The atmosphere that had been slightly depressing just now finally relaxed. ?After adjusting his emotions a little, Ding Gaoheng changed the topic again: "Forget it, no matter what happens on their side, we have to be fully prepared." ? ? ? "The current attitude of our superiors is that considering that our influence in the Mediterranean coastal areas is relatively limited, if the Turkish side''s request does not If it is too much, we can consider reaching a deal with them directly. The second option is to use the relationship we have established with Europe in recent years to put pressure on Turkey through the EU to force the other party to lower or abandon the asking price. ?Finally getting down to business, Chang Haonans expression became serious again: Director Ding, I dont think it is a good choice to borrow the power of the European Union for this kind of matter. "No matter how much Turkey jumps, it is still just a medium-sized country that relies on its key geographical location to barely be considered a big country, and at least it doesn''t have a direct connection with us right now. Although the Varyag is a big bargaining chip, no matter what Whether its blackmail or trading, its basically a one-shot deal. "But if the EU is considered as a whole, it is already our country''s largest trading partner, and this is just the beginning. If they are also involved and the two-party transaction becomes a three-party negotiation, the situation will be complicated. In the long run, The hidden dangers may be even greater. After hearing his concerns expressed, Ding Gaoheng also nodded in agreement: "For us, time is money... No, time is life. We really need to try to avoid complicating the situation, so this is the secondary option." But then again, we really dont have any bargaining chips in our hands that can be used to directly exchange terms with the Turks. The Varyag must be returned. We cant agree no matter what the other side says, right? His tone was a little helpless. From the previous ring project to the current Varyag being trapped, China has suffered losses in this area twice in a row. The key point is that there are no good countermeasures yet. Actually...if we talk about bargaining chips, we still have them. ?Chang Haonan finally waited until this time and immediately sat up straight. Dante Gaoheng showed no surprise at all. You are talking about the helicopter project we cooperated with AgustaWestland. Turkish Aviation Industry Group has introduced A129 and AC109 as domestic models at the same time, and now even the factory buildings have been built. If we set up obstacles on technology transfer, it will really block them and prevent the project from being pushed forward in a short period of time. Obviously, superiors have already considered such an intuitive method. But since it was not included in the main consideration scope, it is obvious that there are some details that Chang Haonan does not know. Sure enough, after a slight pause, Ding Gaoheng continued: But what we learned after insinuating the Agusta Group was that the core of Turkeys introduction plan is the A129 armed helicopter, which is similar to our Project 11. It will gradually increase the localization rate and eventually eliminate the power system. All other parts are completely made in China, and it has even obtained an export trade license, allowing it to enter the international arms sales market independently of the A129. "As for the A109, the remuneration is much lower. It is only produced under a license, and only the final assembly of large parts is done. In other words, even if we stall this project, the losses to Turkey will be very limited. , On the contrary, Agusta and ourselves will suffer, so it is difficult to use this as a heavyweight bargaining chip, at least it cannot be compared with something as big as the Varyag. Hearing this explanation, Chang Haonan was indeed a little surprised. ?However, at that time, he just asked Song Jingming to check some internal files of the Torch Group, and there was really no way to get such detailed information. ?It seems that Ankara dares to stir up trouble at this time. Although it seems a bit crazy, it has at least made some advance preparations. ? Putting aside the good and bad aspects, at least its not stupid. Unlike some countries in later generations, which clearly rely on others for more than half of their energy, they dare to directly impose sanctions on the other side. But thats where it ends. How smart he is, obviously its hard to say. Because they are not the only ones who have a backup plan. Director Ding. ?Chang Haonan''s expression did not change because of the frustration of his idea: In addition to the AC109 project, we actually have a very important card. "oh?" Thats Greece. (End of this chapter) Chapter 810 What does it mean for a lion to open its mouth wide? Chapter 810 What does it mean for a lion to open its mouth wide? It is well known that the relationship between Greece and Turkey is not good. In fact, in the 1990s alone, conflicts broke out between them no less than ten times. There were four direct exchanges of fire. Generally speaking, everyone has their own losses. If we dont talk about life and death, at least the hatred is as deep as the sea. Ordinarily, if this is the case, the normal direction of development should be for both sides to find someone to hug each other, and then launch an arms race, ready to defeat the other side at any time. ?Even if you can''t defeat him, you still have to find a way to keep making the opponent sick. However, the situation of these two companies is quite special Because they are both NATO countries, at least in the past few decades, the two sides have mainly been interested in the United States... No matter who suffers a loss, the first reaction is to go to Washington to complain, and then either asks for more military assistance or buys better weapons and equipment, in order to get the situation back. Therefore, although it cannot be said that no one has thought about the strategy of using Greece to control the territory, it has not entered the formal discussion stage. The operability is too low. ?However, for Ding Gaoheng, since it was Chang Haonan''s idea, no matter what, it is necessary to at least listen to it. Tell me about your plan? He adjusted his sitting posture and assumed a listening posture. Although we really have no way to influence Greece, negotiations are mainly about bluffing..." It was not until a few hours later, that is, the next morning local time, that Ankara, which had held a closed-door meeting for a whole day, announced that the Bosporus Authority had received the situation document from Luchuang Group. , both parties will resolve the issue through dialogue on an equal and open basis - ??Although everyone can see that this matter has risen to the official level of both sides, you still have to be more cautious in the words you use when making announcements. As soon as these words came out, everyone breathed a sigh of relief. Things are finally back on what everyone considers to be "on track." ?Of course, the so-called equality and openness definitely does not exist. Just listen to it on the contrary... As for the meeting place Given the special nature of this incident, the final method of the talks was also very complicated. First of all, neither side is willing to go to the other sides territory to talk. This is nothing unusual. So as usual, the location for the face-to-face confrontation was chosen in a hotel in Budapest. But the person sitting at the negotiating table was not the plenipotentiary usually seen in such situations. Rather, it is just a mouthpiece, responsible for conveying the decisions made domestically. There is quite a sense of dj vu that you can obviously make a phone call directly, but you have to write a letter and let someone else make the call on your behalf. This method of negotiation was relatively common in the era of secret diplomacy in the 19th century or even earlier. But no one has used it for almost a century ?Of course, it is not entirely without benefits. ?For example, the core negotiation team does not need to face outsiders directly, nor does it need to go abroad. Hence, there is less need to consider size and membership constraints. ?Chang Haonan naturally entered the list along with Ding Gaoheng. Director Ding, why would you use such a method... Sitting in the large conference room specially prepared for the negotiation team, Chang Haonan looked at the negotiation outline in front of him and asked Ding Gaoheng next to him in confusion. ? He ??originally wanted to use such an abstract method, but after thinking about it, he felt that it was a formal occasion, and there were comrades from other units around, so it was difficult to express it too directly. But for a while, I really couldnt find any other adjective. ?However, Shen Shengguang, the head of negotiations at the Ministry of Foreign Trade and Economic Cooperation, who was one seat away, had a very good ear. Hearing Chang Haonan''s question, he immediately answered: We are also very surprised about this, as Ankara insists on it. But we dont have much leverage to begin with. If we struggle with the other party for too long on such minutiae as negotiation methods, it will be even more disadvantageous. ?Chang Haonan showed an expression that he couldnt bear to look at: But as a result, the efficiency of negotiations will definitely be reduced. Im afraid it will take days to calculate, as for the tug fleet..." ?At this time, a man wearing a navy uniform also joined the conversation: "The Varyag cannot anchor, and it is difficult to stop the ship. They are temporarily allowed to slow down and circle on the high seas. If there is really no way to reach a conclusion in a short time, then they can only find a port to dock, or return to the Black Sea first. The shipyard...I suspect that this method was chosen because the other party saw our difficulties and wanted to deliberately delay time..." Then I dont think so. Shen Shengguang slowly shook his head: If this is the case, they can choose a less efficient method, such as hiring a special envoy to go on a trip, returning halfway through the conversation, and then inviting us to send a special envoy there... This is what we did in the past when we wanted to delay time..." Halfway through speaking, he noticed several strange looks from around him: "Why are you looking at me like that... This is all strategy! Can strategy be called dirty..." The words followed were difficult to understand, such as "A war is never tired of deceit" and so on. Fortunately, the occasion was quite serious and it was impossible for everyone to burst into laughter. So Shen Shengguang quickly returned to the topic: In short, since they still chose to send a delegation for face-to-face talks, they also want to reach a result quickly, but they really cant understand why they dont give the negotiators sufficient authority..." "After all, in recent months, their domestic economic situation has been unstable. There have been rumors in the financial market that foreign investors are going to withdraw their capital in a concentrated manner. If they can''t quickly inject confidence, then I guess they will collapse at the slightest sign of trouble... " So Lao Shen. Ding Gaoheng, who had not had a chance to speak just now, finally spoke: You mean that the other partys conditions will be focused on the economic and trade level? Then you still need to ask? ? Shen Shengguang, as the leader in charge of foreign economic and trade, immediately straightened his back and patted his chest: Otherwise, why do you think the superiors sent me here? I dont think so Soon someone expressed different opinions, triggering a small-scale discussion. Several leaders, is there such a possibility... Chang Haonan, who acted as the trigger, wiped the sweat from his forehead and quickly interrupted the competition among the big guys: The reason why the Turks did not send a special and plenipotentiary representative is because the forces of all parties are so complicated and their interests are so different that it is impossible to select a negotiator who can represent the interests of everyone? ?Everyone looked at each other and suddenly felt that something made sense. After all, they can argue because of a little bit of competitiveness, and the situation on the other side will only be more serious... ?However, just when someone wanted to say something, the first news from Budapest finally came back. Dear leaders, excluding technical issues related to navigation methods, there are a total of four conditions proposed by Turkey. A staff member walked up to the small podium where the microphone was placed. This Turk really dares to raise...the first thing he asks is four demands... Shen Shengguang shook his head and whispered: Those who dont know think they are Americans At this time, the staff on the stage had also opened the folder in their hands: The first is to require an advance payment of US$2 billion in navigation deposits as compulsory insurance to offset the risks of large unpowered ships passing through the straits. This insurance is irrevocable within five years and must be guaranteed by Turkeys domestic banks. ??If everyone was just complaining on a small scale just now, after reading the first article, the scene immediately exploded. "How many?" $2 billion in premiums? How much are they prepared to insure? No, look carefully. This thing is said to be insurance, but it is actually asking our country for an interest-free loan of 2 billion yuan! And it is an interest-free loan without any conditions attached. How can such a good thing be possible? Generally speaking, for things like international loans, there is a high probability that even the principal is unlikely to be recovered, at least not in full. The reason why many countries are still willing to lend even though they know this is because it is usually part of a package. ?For example, country A lends a sum of money to country B, but requires that the money can only purchase products or services from country A. It is equivalent to the money not leaving the country at all. Lets use some natural resources or legal rights as guarantee. ?There was no expectation of getting the money back, all I had to do was get the collateral. But this wave of Turks is equivalent to actually asking for help. These 2 billion U.S. dollars will not stay in China, but will be actually handed over to the other side. Lets not say whether they will pay back the money in five years. Even if you can, such a large amount of money will be loaned out for 5 years without interest... ?The last time this happened was probably before the socialist family was disbanded... Hence, it is normal for the scene to be full of excitement. Well, whats the point of making noise? In the end, it was the leader of the negotiating delegation who spoke out and silenced everyone: Let the little comrade finish explaining the situation first! With the support of the big boss, the staff on the stage breathed a sigh of relief and continued speaking quickly: The second is to require our country to include Turkey in the list of destination countries for citizens to travel abroad, and not to set additional restrictions on Chinese citizens traveling abroad with Turkey as their destination. Third, our country is required to invest no less than US$500 million in Turkey within two years, of which the amount of industrial-related investment is no less than US$300 million. The fourth is to require my country Aerospace Power Group to cooperate with Tusas Engine Industry Company to jointly develop the TF10000 engine project. After finishing speaking, he took out a piece of official paper from the folder, placed it on the stage of the projector, then gave a slight greeting to everyone in the venue, and quickly turned around and slipped out. (End of this chapter) Chapter 811 If China can do it, can I do it too? Chapter 811 If I can go to China, can I do it too...? After all these four items were finished, the scene became quiet. For a long time, no one spoke. Because compared to the first piece of unparalleled heavy content, the last three pieces are like... How to describe it? ??If negotiation is compared to boxing, and making conditions is like punching, ?The first one just now is basically equivalent to Tysons full blow. The last three are ordinary high school girls punching you in the chest. Its not just a matter of intensity. The more important problem is... Its very confusing. I dont understand tourism, but...has our country issued a ban prohibiting traveling to them? A few seconds later, someone finally asked the first question. ?Everyone looked around and found no relevant comrades at the scene ?This is also very reasonable. After all, no normal person would think of inviting people from the tourism authorities during the negotiation process on this topic. "Do they... still think that our citizens have quotas for going abroad? Just like what some... media have promoted?" Although it was a negotiation venue, everyone almost laughed after hearing this speculation. No way Since 1994, we have essentially lifted the restrictions on passport applications. As long as you are not restricted from leaving the country by the public security organs, you can apply for it Turkey is a serious country. If you still dont know about this after seven years, you are just a fool. ?But at this time, Shen Shengguang, who was in charge of foreign trade, answered everyones doubts: "As far as I know, in the past, Chinese citizens could only apply for passports through travel agencies if they were not required for work. Our country has indeed released a list of destination countries before. I think this may be what they are talking about. thing." But the passport is not a one-time use. As long as the application is completed and the Turkish government is willing to grant a visa, we will not stop it..." "I guess... it''s because most people in our country travel abroad. The farthest places are the United Kingdom and the United States, and the closest ones are Japan, South Korea, and Southeast Asia. Probably... not many people have thought about it, or... maybe... not many people have known about Turkey at all. ? At this point, the situation has become a bit out of control. Obviously, Turks have some unrealistic estimates of their international popularity. Forget it, lets go through this first Even the leader of the delegation was obviously holding back a smile: Anyway, our country is about to sign a formal agreement to join the WTO. One of the items allows citizens to apply for passports on demand. As for the list of destinations, all countries that have established diplomatic relations will also be added..." It is a pity that Chang Haonan did not see this hilarious process. Because, after reading those four items, the first question that came to his mind was different from others. Rather What exactly is the TF10000 engine? ?Chang Haonans main purpose of coming here this time was actually just to eat the melon, but he never expected that the melon would end up on his head. ?Of course he had heard of such a model, but that was about 20 years later when the Turkish aviation industry prepared the power for its own heavy-duty drone and the so-called "fifth-generation fighter" TF-X "Khan". Although I cant remember exactly when the project was established, at least when he was reborn, not to mention the TF10000 itself, even its prototype, the TF6000 without afterburner, was only a very rough prototype. ? Calculated, the project establishment time will never be earlier than 2015. ? No matter how crazy Tusas Engine Industries (TEI) is, it is impossible to think that it can tinker with a fourth-generation aviation engine in 2000, when the F119PW100 has not even been fully finalized. So, the current TF10000 is most likely another thing, but it just happens to use the same name. ?So just now, after asking for instructions, he called Zhang Liangping to let the latter understand the situation. Here at the venue. Compared to the second article, which is completely fun, although the content of the third article is not very strong, it is at least serious. ?However, it did not arouse much discussion. In 2000, although China had not yet become a net exporter of capital, the amount of overseas investment had gradually increased. Although the main investment directions are still some traditional trading partner countries, at least no one will object to this matter. ?In particular, the other party also requires that at least 60% of the investment be injected into industrial enterprises. ?There is not even much concern about the investment being wasted. Chang Haonan, who had just returned to his seat, had no objections. ? Or rather, he couldnt imagine how someone could actively invite others to buy at the bottom of his stock Turkeys economy is in a mess right now, and it will be in a mess before it is reborn. But there was a period of serious growth in the past twenty years or so. Especially in two years, some tough guy who thinks "a fairer world is possible" will come to power. ?About 10 years after that, Trkiyes economic growth rate almost rivaled that of China. ??Furthermore, I havent heard that like a large country in South Asia, there is a situation where foreign investment cannot leave after it comes. In short, it will definitely not be a loss... Then, this item can also be used as an alternative to consent... The leader of the delegation jotted a few words in his notebook, then raised his head again: The last item comes next. He then turned his attention to Chang Haonan. Comrade Haonan, you should be the person who knows the most about aero engines in our country. Can you tell us about the TF10000 engine? The rest of the people also looked this way. The main look in his eyes is curiosity. ?Although no one knows much about aviation development, it has only been a few months since the large-scale discussion triggered by the military parade, so everyone has heard about it. ?It seems that except for the United States, Russia, Britain and France, as well as China itself, which has only made some progress recently, no country seems to have produced any well-known models. One thing is only in the hands of the five great virtuous people, which can explain some problems. Now that Trkiye has suddenly jumped out and claimed that it wants to join this ranks, it seems a bit strange. "Can." Chang Haonan also nodded helplessly: During the Cold War, the United States authorized Turkey to produce a batch of F110GE100s in the form of license production, which were used on F16 fighter jets also authorized by Turkey. However, after the end of the Cold War, as the relationship between Turkey and the United States turned cold, the United States Requests to renew this license have been denied in previous years. "However, the Turkish Aviation Industry (TAI) has gradually gained the ability to overhaul and upgrade early F16s in the process of authorized production, and can carry out limited updates to the domestically equipped F16 fleet, but TEI has not been able to fully understand the supporting facilities. The F110 engine, resulting in aircraft power updates and upgrades, is still subject to General Electric. Hearing this, Ding Gaoheng next to him rubbed his forehead. This plot is very familiar to him. Chang Haonan continued: "This TF10000 means ''Turkey''s self-developed 10,000kg thrust level aero engine''. It is actually the F110GE100 produced by TEI in the hope of getting rid of the restrictions of the United States. The parameter calibration is basically equivalent to about 90% of the latter, but...it is not yet available Just a plan." As for why they came to us...its a long story. Chang Haonan paused for a moment and took a deep breath helplessly: After last years 50th anniversary military parade, there were many international speculations about the new engines that appeared in the air formation. One of them is that we have thoroughly understood the technology of the CFM56 core machine and developed it ourselves on that basis. This CFM56 also has close technical ties with the core engines of the F110 and F404 engines. So later, the French Snecma Group came to us, hoping to assist them in improving the M88 engine that borrowed a lot from the designs of the F110 and F404 models. This matter was almost completely public, so it had a great impact. My personal guess is that after seeing this situation, the Turks had similar thoughts to the French Not everyone in this negotiating delegation knows the specific situation of turbofan 10. ? So Chang Haonan skipped this part, neither confirming nor denying the statement that "Whipfan 10 is related to CFM56", nor making a clear statement on "whether China has the ability to assist TEI in replicating an F110". The specific situation may need to be reported separately to the superior leaders later. ?However, most people at the scene still felt it was very outrageous. Especially after the discussion in the second item just now ? France is at least a powerful country in the aviation industry, and together with China, it sounds feasible to jointly develop an advanced engine. But Trkiye, why? cooperate? ?Its pretty much free prostitution, right? Furthermore, even if its free prostitution, you still need to have some basic knowledge. ??If aviation development was really that easy to do, and the Soviets taught us almost step by step for more than ten years, shouldn''t our China''s aviation development technology be close to that of the United States and the Soviet Union in the 1960s? What''s going on? Facing such a question, Chang Haonan was silent for a long time. Longer than any time before. As everyone said. ? He ??is confident to help Snecma develop the M88 because the Frenchman is like an ordinary academic master. Although there are questions that he does not know, he can understand them with a little help. But Turkey, even if he is not a bad student, is at most one of the poorest students. ?At the beginning, you have to do Olympiad-level topics, and you also need to have a church. ?It really cant be done... In the end, he had no choice but to sigh and replied: "Maybe I have a disease called ''I can do it if I can do it in China''..." (End of this chapter) Chapter 812 Shooting yourself in the foot Chapter 812 Shooting yourself in the foot One of the advantages of this negotiation method proposed by the Turks is that it has very low timeliness requirements. Especially on some more tangled issues, you can discuss them slowly. Presumably this is the reason why they made this decision. Therefore, while everyone was lamenting and discussing, the leader of the negotiating team announced an adjournment of the meeting, and then called Chang Haonan out alone. The two of them quickly came to another smaller room next to them. Xiao Chang, I dont know much about aircraft engines, so I need to check with you before making a decision. ?The other party asked straight to the point: Technically speaking, do we have the ability to assist them in completing the TF10000 engine proposed by Hijikata? Chang Haonan answered decisively without much thought: Reporting to the chief, aviation development is a complex system engineering. We have many unique technologies that Americans do not have, but the reverse is also true. In other words, developing a turbofan 10 with similar overall performance to the F110GE132 is two different things from replicating the F110GE100, at least in a short period of time. Although it is not directly denied, the meaning is obviously... no. So there are rumors about Turbofan 10 using CFM56 as the core machine Of course its false. Chang Haonan smiled and shook his head: From the overall design to the production and manufacturing of the Turbofan 10, we have completed it all ourselves, and it has nothing to do with the F110 or the AL31F. ?The other party took a long breath of relief, then turned slightly and looked out the window: It is impossible for us to agree to their first request under any circumstances. This not only involves a US$2 billion issue, but also involves the national image. But if you only agree with the second and third items, Im afraid it wont be so easy to talk to the other party..." At this point, he lowered his head and gently rubbed his eyebrows: How could such four illogical conditions be proposed... In fact, according to Chang Haonan''s guess, these four conditions should be proposed by several different interest groups in the other country. Ankara''s top leaders were unable to coordinate the relationships and demands among them, so in the end they had to throw it all away. It stands to reason that we should be better able to deal with this situation. After careful consideration, Chang Haonan took half a step forward: Chief, Director Ding and I have thought of a way to make Ankara reconsider their conditions. Originally, according to his idea, this matter should be raised by Ding Gaoheng at the meeting. But the current situation seems more appropriate. Sure enough, after hearing what he had in mind, the chief turned around abruptly: Tell me about it. "We can hint to the other party that if they refuse to allow the Varyag tug fleet to pass through the strait, we will consider Greece''s request to join the new fighter development program. By then, the Greek Air Force will obtain a fighter jet at a price close to cost. A more advanced fighter than the F16C/D. Thats right The chief was about to nod when he suddenly realized something: Wait a minute...did the Greeks ask us for this? ?For the new fighter jet mentioned by Chang Haonan, his first reaction was almost naturally the J-10. So ?It is outrageous to be able to jointly develop helicopters and fighter jets with NATO countries. If main combat equipment can be sold directly to NATO... Laughing to death, what does it mean to rebel against Tiangang? Of course not. ?Chang Haonan spread his hands slightly: "But the Greek Air Force has always been a loyal user of French fighter jets. From the Mirage F1 to the Mirage 2000, it is normal to continue to purchase new models. And in the mid-1980s, when the French just withdrew from the EFA project, the Greeks did Considered joining. At this time, the chief finally reacted: Ohyoure talking about Gust ?Then he put his hands away and walked back and forth in the room a few times. Bluffing. Risks and returns coexist. If the other party believes it, then everyone will be happy. But if it is seen through, it will become even more disadvantageous. This strategy actually involves betting on a hand that the other party does not dare to bet on. ???The conflict between Greece and Turkey is not a small fight like between Britain and Iceland or Britain and Spain, but a solid one that bleeds to death and throws people off planes. The outcome of each conflict will even directly affect the domestic situation of both parties. ?At present, the air forces of Greece and Turkey are basically in balance. However, due to the cooling of relations with the United States, the latter''s equipment update has not been smooth. On the contrary, the Greek Air Force is actively seeking new equipment and has even begun to contact the United States about the introduction of the latest model F16C/Dblock52. ?So according to its usual principle of "holding the thighs of the United States and France at the same time", it seems reasonable to consider Rafale by the way. Whats more, you can get ultra-low prices, so theres no reason not to buy it. ??And once Greece suddenly has dozens of third-and-a-half-generation fighter jets... the Turkish Air Force will almost certainly suffer a big loss. ??If left to the past, perhaps they would have pinned their hopes on Washington''s attitude, believing that the latter would not allow the balance of power over the Aegean Sea to be broken. But last years erroneous show of force has proven that the Americans methods dont seem to be that reliable either ?In this case, even if there is no evidence, the other party does not dare not believe it and has to believe it. After analyzing this point, the final conclusion is self-evident... ?Meanwhile, Ankara. In a conference room with a layout similar to that in Beijing, the Turkish negotiating delegation is waiting for a response from China. Although the various factions within it have never been able to reach a consensus, at least for the moment, the atmosphere in the room is relatively relaxed. ?Finance authorities and the central bank are expected to receive a large amount of interest-free borrowing, at least until the next election. The cultural sector will receive a large number of tourists. Even if the individual spending power may be lower than that of Europe and the United States, it can still bring in an income of hundreds of millions of dollars per year. The industrial sector is expected to receive a large infusion of investment, reviving market confidence that has been shattered by rumors of foreign capital flight. The military, which has the most weight to speak, sees hope in upgrading the main equipment of the air force. Everything is so perfect ?According to their estimation, Varyag is an asset that China can never give up, so even if the conditions are harsher, the other side has no bargaining chips. I''m afraid that the most you can do is to adjust the premium amount in Article 1. Your Excellency Unakitan, if you can receive the deposit, I hope that at least one-third of it can be used to make up for the shortfall in personnel expenses in this years military budget. ?Deputy Chief of General Staff Hilimi Ozkirk told the head of the Ministry of Finance Kamal Unakitan. Although he said "hope", there was obviously no discussion in his tone. In most countries, it is absolutely impossible for a general to talk to a civilian official like this. ?This is naked political interference. But in Turkey, since the military has the responsibility of supervising the country, the rights of military bosses are almost unlimited. Dont talk about a minister, even the Prime Minister will change him whenever he wants. ?Hence, although Unakitan looked unwilling, he could only nod in agreement. Suleiman Demirel, who was next to him, wanted to open his mouth to smooth things over, but after being glanced at by Ozkirk, he immediately retracted. ?Twenty years ago, he was overthrown by the army overnight. ??Although he has now made a comeback by virtue of his qualifications and has taken a prestigious position with little real power, his past experience has determined that he has no courage to stand out in front of the military. ?Just when Ozkirk wanted to say something again, a staff member suddenly walked in hurriedly from outside. Even bumped into the back of a chair on the way. Just as Demirel was about to reprimand him, he saw the other party walking straight to the front of the conference room. "Is there good news to be announced?" He swallowed back the words that were on his lips. ??If the Chinese people have agreed to their request, it is understandable to be a little excited... ?Thinking of this, Demirel adjusted his sitting posture and looked forward with a smile. At this time, the staff member had also opened the file in his hand: The Chinese side stated that it cannot accept the conditions proposed by us. ?) Dont accept? "How is that possible? Aren''t they planning to tow that ship back?" ?There was a commotion at the scene In fact, Ankara had received a request from the United States more than half a year ago to block the Varyag in the Black Sea. ?However, the reason why they finally decided to stop the Varyag actually had little to do with this incident. Just want to blackmail someone. After all, after the end of the Cold War, the Turks have already experienced the feeling of being abandoned from the beginning to the end, and it is impossible to tie themselves to the American tank so easily again. ?In their judgment, any benefits are trivial. As long as they don''t really hold down the aircraft carrier, they won''t completely offend the Chinese people. There is always room for maneuver. It should be said that this judgment is actually correct. ?But what I never expected was that the Chinese people seemed to have no intention of bargaining with them, but simply gave up... If this is the case, the trouble will be big. ?In the long run, even if you offend a big country that is on the rise, it will not gain any immediate benefits. Faced with this situation, some people were soon ready to kneel down: How about... we lower our demands and negotiate with China again? Turkish people always like to compromise...open a window...tear down the roof.txt In short, for a country like this, if you really sit down and have a good talk with it, it will kick your nose in the face. But if you directly prepare to overturn the table, then he will come over to mediate the situation, quickly pull you back, and be willing to have a good talk. ?However, this is not over yet. After the scene became a little quieter, the staff continued to add the second half of the sentence: "China also stated that if we refuse to implement the provisions of the Montreux Convention and allow the Varyag tug fleet to pass through the strait, then they will consider allowing Greece to inject capital into a new fighter jet that is currently in the development process. Become an initial investor. This means that the Hellenic Air Force can get a very low price and priority in obtaining the supply of this model. ??There were some noisy arguments at first, but they stopped instantly. ??If the first half of the content is just a stone thrown into calm water. ?The second half is when a nuclear bomb was detonated in the sea. There was silence between the exploding sky and the earth. "Wait a moment" ??The first person to lose control was Ozkirk, who was still arrogant just now: Did they mention more specific details, such as model number or delivery time? The special status of the Turkish army comes from the people''s strong defense of the military''s decisions. ?This kind of even somewhat unreasonable maintenance came from the fact that in the Battle of the Dardanelles, the army vigorously defended the country in the face of an overwhelmingly superior enemy. ?But on the other hand, if the Turkish army cannot continue to prove itself, the collapse of trust will also happen in an instant. Obviously, the situation is currently developing out of control. Unfortunately, the staff on the stage shook their heads, indicating that it was not the case. The person in charge of foreign affairs next to him, Ismail Jem, was obviously much calmer: I guess it should be the Rafale fighter jet being developed by Dassault. All exports of Rafale fighter jets require simultaneous approval from China and France, let alone the addition of an original investor. Ozkirk''s mind was a little confused. He just opened his mouth but did not say anything. Do the Greeks really want to cooperate with the French? Demirel also asked with concern. ??If the Turkish army is really overwhelmed in the Aegean dispute, then the military will naturally bear the brunt, but they will not end well. There wasnt much emotion in Jems voice: In any case, their contact with the French must have been carried out secretly, and it is impossible to inform us. "What is certain is that in the early years of the development of the Rafale fighter jet, the Greeks did show a strong interest. According to some declassified information, they even sent technical personnel to inspect the design plan. However, the French had just left the EFA project at that time and did not We are motivated to engage in joint research and development again. But now, considering that it will cost them a lot of money to ask the Chinese to help solve the power problem, since they have already introduced an additional partner, it seems easy to accept the introduction of a second one..." And one thing that needs to be noted is that although the main tugboat hired by China is from the Russian Navy, there is also a brake tugboat from a Greek company, and there are many Greek crew members on both ships. As a veteran, Jem will not give his own judgment directly. But every time he said a word, the faces of other people present would become a little gloomier ?Before making the final decision to intercept the Varyag, an important reference they chose was the operation of the Ring Project by the Kingdom of David. At that time, China did not show any effective countermeasures. This is also the main reason why they have always believed that the Chinese people would give in easily in the past few days. ?However, everyone has forgotten. Although it has only been more than a month since the ring project was completed. But the Chinese have a brand new bargaining chip in their hands. Furthermore, it is specifically targeted at Trkiye. The relaxed and freehand experience a few minutes ago seemed as if it had never happened. Everyone''s face tightened. After a long time, someone finally spoke: "We rejected the Varyag''s navigation. This is known to the whole world. If we fail to reach any agreement with China and just let the ship pass, it will be very detrimental to our future management of the strait... " The reason is the same as Chinas inability to accept the 2 billion guarantee deposit. A matter of principle. ?Once you give in this time, others will follow the same example, and there will be no peace. Ozkirk frowned, unable to make a decision for a while. He regrets it very much now. ?Had I known this, I might as well have been a favor from the beginning and let the ship go... ?The current operation is as fierce as a tiger, and the result is neither letting it go nor not letting it go. He shot himself in the foot. Gentlemen. ?He took a deep breath, raised his head and looked at the other people around him: I propose to have a face-to-face conversation with China to resolve this matter as soon as possible, especially to rule out the possibility of Greece acquiring a large number of advanced fighter jets, at least not in the next few years. Who is for it and who is against it? (End of this chapter) Chapter 813 Through the Channel! Chapter 813 Passing through the strait! ??When the news of Ankara''s request for a direct meeting reached the capital, most people did not even react immediately. Including Chang Haonan. Although it was his idea to use the name of Greece to create cards in the void, when making plans, he could only use it as one of the bargaining chips in negotiations. ?Whoever dares to do so will be immediately killed. ?About half a minute after the staff finished introducing the situation, someone in the originally tense atmosphere of the venue finally couldn''t hold it back and let out a burst of mocking and helpless laughter. Immediately afterwards, the others were also inspired, and they all lowered their heads and covered their mouths to snicker. The entire conference room was finally filled with a happy atmosphere. "well" The leader of the delegation sighed, then leaned his upper body on the back of the chair and shook his head. ?Although he didnt laugh out loud like the others, the corners of his mouth that couldnt be suppressed clearly showed that he was in a very good mood: Originally we thought we were going to gnaw on a hard bone, but...as soon as we moved our mouths, we found that it was a brittle bone... With this slightly joking remark setting the tone, other people''s speeches naturally became less restrained. Yeah, not to mention the past two days, even the past two hours, when I first heard the four requests from the other party, I felt that they were coming very menacingly and were quite difficult to deal with. Shen Shengguang, who thought he was going to play the leading role, but found out that he was just playing the leading role, swept away his depressed mood at this time, raised the notebook in front of him with a smile and said: Look, Im still analyzing it seriously. One sentence attracted everyone''s attention, and they found that the two pages of the book were covered with dense writing. "I just thought that these four items of the Turks looked chaotic, but in fact they are intertwined with each other. The first one requires us to have a large deposit. In addition to being an interest-free loan, it can also provide the fourth The article requires us to participate in joint research and development as a guarantee. If we find that there is no progress in the project after five years, we can continue to struggle with the refund issue..." It should be said that Shen Shengguangs explanation does make sense. ??If this agreement is really signed according to the conditions proposed by the Turks, then even for the sake of the 2 billion, the Aerodynamics Group will not be able to overdo it and come up with something real. Its just that my opponent probably didnt think about it at all and just performed a wave of sit-ups ?At first I felt that I was good at it, and after a while, I realized that I didnt seem to be very good at it. In the end, I didnt even struggle and just lay back down. It would be better not to have any support in the first place. ?This kind of sliding and kneeling speed makes the performance even more clownish. Chang Haonan couldn''t help but think of a famous quote from a classic TV series he had watched in his previous life, so he spoke almost subconsciously: Being arrogant at the front and respectful at the back makes you laugh when you think about it ?This original soliloquy was heard by Ding Gaoheng next to him. Heh, this term is very suitable to describe the opponents performance... The latter commented immediately. ?Although arrogant and respectful are also used to describe people, in the current environment, it is simply perfect. Besides, I didnt realize it before, Xiao Chang, do you know something about literature? Chang Haonan could not explain that this line came from a TV series released a few years later, so he had to wave his hand: The words are just on the tip of my tongue, I think they are spoken from my thoughts ?However, the joyful atmosphere did not last long. After all, although the Turks have shown their intention to kneel down, the Varyag has not actually passed through the Bosporus, so it cannot open the champagne in advance. ?According to the delegation leaders intention, since the interview is being prepared, the next step is to determine the meeting place and negotiators. But at this time, some people put forward different opinions. I think there is no need to agree to the Turks request right away. As the leader responsible for foreign economic and trade cooperation, Shen Shengguang is relatively professional in negotiating and understanding the psychology of foreigners. In his opinion, since it has been discovered that the opponent''s pressure resistance level is far less than expected, then the opponent should not be given breathing room Oh, you said before that you didnt want to meet in person to talk, and we agreed. ?Now you find that the situation is not right and want to suddenly change your mind? How can there be such a good thing? Changing the negotiation method itself is also a matter that can be traded. If you want to have a face-to-face meeting, then offer conditions in exchange. Shen Shengguang cleared his throat and expressed his thoughts. But Comrade Sheng Guang. Some people soon expressed concerns: After all, we came up with the Greece card as a bluff. If we really delay it for too long, what if the other party discovers the problem..." Before he could finish speaking, Shen Shengguang waved his hand: Im just saying that I cant agree to the interview immediately, but Im not saying that I wont talk. "Budapest doesn''t need to drag it out any longer. It adjourns the meeting directly and asks Comrade Yi Kuangyao stationed in Ankara to convey our conditions directly to them and tell them that is our bottom line for negotiations. If they don''t agree, then we can''t guarantee the Aegean Sea. Arms balance in the region! As for the Varyag, the worst case scenario is that it will go back to the Black Sea Shipyard first. It wont be too late for us to talk about it after they replace the next leader in two years! ?Shen Shengguang said and knocked on the table in front of him. Negotiation is essentially similar to playing cards. The comparison is not just about the size of the cards. Unless your starting hand is an invincible card like a Royal Flush, you can naturally defeat ten with one effort. But in most cases, you still have to play psychology. Just like now. ??The Chinese side is indeed just bluffing. However, the other party exposed its internal instability and its weakness of being unable to withstand any turmoil of public opinion. It is equivalent to showing one''s trump card. It means that the Greeks cannot afford to obtain advanced equipment that can reverse the situation. ?Of course, the situation in China is actually similar. Varyag must be allowed to return home smoothly no matter what. But the Turks didnt know about this latter matter. In this case where individual information is transparent, negotiation is basically a unilateral devastation. So, there is no need to be too timid. The leader of the delegation thought for a while, then raised his head again: "Then, let''s follow Comrade Shen Shengguang''s opinion and first determine the content of this ''ultimatum''!" One day later. Zhu Yuzhou, who had been circling the high seas outside the entrance to the Bosporus for more than ten hours, looked worriedly at the Chamilika Mountains that were vaguely visible in the distance. He had barely slept since he received the call asking him to slow down as much as possible. The big ship behind him is of great significance to him, Luchuang Group, and even China as a whole. Every day he is delayed on the road, the risk of long nights and dreams increases. ? It has been less than a week since the ship set sail, and the number of sightings of small boats and helicopters within visual distance of the fleet has already exceeded double digits. ???In one of the most dangerous times, a helicopter even tried to forcefully land on the deck of the Varyag. Fortunately, he saw the opponent''s intention in advance and ordered the steering evasion in time, so that he could not succeed. But only a thousand days to commit a thief, not a thousand days to guard against a thief. If we continue to go around in circles like this, it will be a matter of time before someone finds a loophole and boards the ship, or even destroys the traction rope. Of course, Zhu Yuzhou also knows that at this moment, the country is estimated to be engaged in fierce negotiations with Turkey. But at least in his view, the results are hardly optimistic. ?The Mediterranean is still too far away after all. Mr. Captain. Zhu Yuzhou, who was really unable to bear it, turned around and said to the big-haired captain who was only wearing a vest: Im going to take a rest. If you notice anything unusual nearby, be sure to wake me up. Okay, Zhu, go ahead and leave this to me. The latters mentality is quite good. After all, the overseas subsidy is calculated on a daily basis. Even if he keeps wandering around the Black Sea, it will not affect his income. ??Zhu Yuzhou nodded, and just as he was about to turn around and walk down the deck ladder, he heard the maritime satellite phone next to him suddenly ringing. ?His whole body was shaken, his sleepiness disappeared almost instantly, and he rushed over at a speed that the captain next to him could barely see his figure. This is Nikolay Chikel, please speak. There was heavy breathing on the other side of the receiver. After a few seconds, the voice of old friend Ye Junqi came out. The strait management agency has withdrawn the order prohibiting passage. A brief sentence made Zhu Yuzhou''s tense nerves suddenly relax. He suddenly felt a little dizzy. Fortunately, I grabbed the handle next to me in time: Thenthat means we can get through? Yes, but there are still some technical requirements. A traffic boat will board the ship in a while and explain the situation to you in detail In order to prevent his sit-ups from becoming a clown act, Hijikata put forward many technical details. For example, the braking tug is required to have a horsepower of not less than 16,000 horsepower. It also requires two additional auxiliary tugs at the bow, amidships, and stern, as well as three additional pushers to prevent collisions with cross-sea bridges or coastal buildings. ships, bringing the size of the entire fleet to 12 ships. ?In addition, during navigation, visibility is required to be no less than 5 kilometers, water flow no more than three knots, and wind strength no more than level five. In fact, from the perspective of navigation safety, this is quite an overkill. ?The Bosphorus is 708 meters at its narrowest point and 27.5 meters at its shallowest point, which is more than enough for the Varyag, which has not yet been outfitted. ?Furthermore, the tugboat fleet hired by China is composed of veteran crew members who have been working near the strait all year round. In fact, there is no need for such an exaggerated momentum. ?However, China can also understand Ankaras thinking - Having stopped the Varyag is already an open matter to the whole world. ?Now the purpose of extorting a sum of money has not been achieved. ?Then you have to give an explanation to the outside world and explain why you have been jumping up and down for so many days. I cant admit that I wanted to make a fortune, but was killed. ?Thats too embarrassing. So I can only focus on technical details, showing a posture of "I am so rigorous because of the safety of international waterways." So, for these purely technical requirements, Huaxia directly accepted them all. It wont cost much anyway. But the parts other than technology are completely different. The first one, that must be completely abandoned without any doubt. ?Of course, as the five great virtuous people, we are not completely unreasonable. Huaxia promised that if any damage is caused to the strait and shore facilities during navigation, it will pay corresponding compensation from a huge special insurance. However, the guarantor was changed from a Turkish bank to a domestic insurance company in China. By the way, it will become the largest single business in China Insurance Industry in the coming years. The second and third articles have a different expression. That is to say, based on the previous agreement reached with the EU, the two sides will open markets and investments to each other based on the treatment of WTO member countries. As for the tourism industry, Comrade Yi Kuangyao spent a lot of words to get Ankara to accept the reality that Turkey actually has little reputation in China. In order to improve this situation, he suggested in good faith that we could consider opening up the visa-free or visa-on-arrival policy between the two countries... As for Article 4, because it involves the defense issues of a NATO country, it is indeed somewhat sensitive, so it was eventually replaced with a completely pragmatic statement. Both sides will be committed to enhancing strategic mutual trust between the two militaries, improving their ability to respond to non-traditional security threats, and gradually deepening military exchanges under the guidance of the principles of mutual respect, fairness, justice, and win-win cooperation In short, this "Black Sea-Mediterranean Crisis" ended quickly, leaving many countries dumbfounded. ?Although some major powers outside the region have once again emphasized the "risks" and "threats" that an unpowered ship may pose through the strait, it is clear that nothing can be done without advance preparation. Three days later, under the witness of tens of thousands of onlookers at both ends of the Bosporus Bridge, the Varyag, surrounded by more than a dozen auxiliary ships, slowly passed through the narrowest part of the strait and entered the Mediterranean Sea smoothly. Even vehicle traffic on the bridge was not affected. At 12 o''clock at noon, the leader of the ship, Nikolay Chikel, blew its whistle to pay tribute to the Bosporus, the Black Sea, and the Nikolayev Shipyard. ??This giant ship that spanned two eras finally broke free from the constraints of geography for the first time 11 years after it was launched and headed towards the vast ocean. At the end of this voyage, it will inherit its mission at the beginning of its construction and become another iconic force of the Red Navy... (End of this chapter) Chapter 814 Join the WTO in advance! (counting yesterday) Chapter 814 Entering the world ahead of schedule! (counting yesterday) ?While China and Turkey were busy implementing technical details for a few days, other countries were also busy. The most typical example is the British who do not take things too seriously when watching the excitement. ??The BBC directly sent a team of reporters to the Black Sea and filmed the entire process from the tug fleet gathering, to the formation setting off, and then to passing the Bosporus Bridge. ?Especially the last part of passing through the strait, there is even a dark filter and rhythmic music. ??If the Varyag''s hull was not in such poor condition and the superstructure was not neat and tidy, it would have felt like the Red Navy was on an expedition again... ?However, for most countries, this is not really a big deal. Its just a hull that has been soaked in water for more than ten years. Although people who know this matter feel that "the Chinese people probably want to continue building this ship." ??But if they were really asked to judge whether the ship could be built in the end... ?Then most people will still tend to be pessimistic. After all, this is not the first time China has purchased an aircraft carrier. As early as 1984, China purchased the retired aircraft carrier HMAS Melbourne. The price is as high as US$30 million. That was the value of the currency in the mid-1980s. ?At that time, the relationship between China and the West was still in the honeymoon stage, so Australians did not have much precaution. ??Although the Melbourne was nearly an empty shell when it was shipped to China, there were still some equipment left on it that were difficult to dismantle. ?At that time, almost all countries felt that China should be preparing to pack up the ship and put it to use. ?However, after a final inspection, it was found that this aircraft carrier that was in service during World War II was too old, the cost of renovation was extremely high, and it could not maintain stability after being put into use. So it was finally demolished. After entering the 1990s, China successively purchased two retired Type 1143s. ?However, as "heavy aircraft-carrying cruisers", these two ships have a very unique positioning and are obviously not the true aircraft carriers that China wants. ??And it also has the same problems as the Melbourne - the hull is too old, the equipment is severely damaged, and it is difficult to maintain even if it is repaired. In the end, it was not renovated and became a marine amusement park. France also made a proposal to "give away" the Clemenceau class to China for free and only charge for maintenance and modification costs, but this was obviously a sinkhole and was ultimately rejected. In short, past experience seems to show that although the Chinese have the idea of ??"building an aircraft carrier", they are still very cautious in the specific implementation steps. ??Except for a small number of personnel who specialize in naval intelligence analysis and the people who saw it with their own eyes on both sides of the strait, the whole incident did not receive much attention. As for China, it has adopted a low-key approach. It only reported the agreement reached with Turkey in the news one day, and did not mention the matter of a semi-finished aircraft carrier at all. ?Of course, the above can only be regarded as minor factors. The main reason is still. ?During this time, most peoples eyes are focused on another thing ??With the Chinese representatives officially signing their names on the WTO accession agreement, this multilateral negotiation with a rare complexity in the world finally came to a happy ending. According to the WTO charter, China will officially become a WTO member in one month. Large companies around the world are reveling and celebrating this, preparing to enter this unimaginable huge market that accounts for one-fifth of the world''s population to reap the huge profits they have dreamed of for many years. The Chinese people are also reveling and celebrating because of this. After all, the whole country has been working hard for this over the past decade or so. In any case, joining the world trading system will bring far more advantages than disadvantages to an economy like China with relatively scarce per capita resources. In comparison, let alone a semi-finished aircraft carrier, even if a complete aircraft carrier is purchased by China, it is probably not a big deal... Chang Haonan was in Ding Gaohengs office and watched the live broadcast of the signing ceremony with the latter. Compared to others, his mentality is much calmer. It has been experienced once in a previous life, and the novelty has worn off. Secondly, as a reborn person, he has a deeper understanding of the two sides of joining the WTO. ?With greater ability comes greater responsibility. For Chang Haonan now, he is no longer a simple technician who can turn a deaf ear to what is happening outside the window and immerse himself in laboratories and projects. ?Those challenges and threats that he only saw in the news and documentaries in his previous life now require him and others to work together to find ways to deal with them. I cant believe that this happened so suddenly Lan Xinzhi stood next to the sofa where Chang Haonan and Ding Gaoheng were sitting, looked at the TV screen and said with some sadness: Before, when I wrote the summary every year, there was always a chapter related to joining the WTO. Now that I have just entered it, I feel...its still a bit empty..." ?Chang Haonan can understand this feeling. It feels a bit like a senior high school student who has just finished the college entrance examination. Ding Gaoheng next to him relaxed and leaned on the backrest: Its a matter of course. As he spoke, he looked at Chang Haonan, who was holding up a tea cup and blowing on it: In recent years, we have indeed done a lot of things that are of great significance to promoting Chinas accession to the WTO. Especially the failure of the Americans attempt to bring down the euro with the help of allied operations was a final push. The latter nodded with deep feeling from the side. The time point of joining the WTO in this timeline is about one year and ten months earlier than in the previous life. Mainly due to the wave of operations from April to May last year. On the one hand, the military card held by the Donkey Party was declared invalid, and the general election at the end of 2000 basically entered garbage time. ??And if you want to leave some thoughts four or even eight years later, the only remaining method is to seize the opportunity to use the WTO to open up the Chinese market. Otherwise, if the Xiang Party waits until the Xiang Party comes to power to do this, it will probably offend the Donkey Partys iron ticket warehouse to the other side. On the other hand, China signed a bilateral trade agreement with the EU at the end of last year that is basically equivalent to WTO conditions, opening up the market in quite a few areas. ??If China continues to be stuck in WTO accession negotiations, it will be equivalent to allowing the EU to exclusively enjoy the Chinese market after the degree of openness is expanded. The latter is afraid that he will die laughing. Therefore, starting from the second half of last year, the progress of negotiations that had been stalled for a long time suddenly accelerated, and new results were produced almost every time the two sides met. According to the head of the negotiating delegation, he has never seen Americans with such sincerity New ambition. Ding Gaoheng raised his head slightly and looked at Lan Xinzhi, who was standing behind him. Joining the WTO is definitely beneficial to our country in general, but for your Equipment Industry Department, Im afraid we have to be prepared for the impact (End of this chapter) Chapter 815 The pros and cons of joining the WTO Chapter 815: Gains and Disadvantages of Joining the WTO As for Ding Gaohengs concerns, Yilan Xinzhis position is of course impossible to echo, but he needs to express his position: Dont worry, Director Ding, we will work closely with front-line enterprises and brother departments to properly deal with the new challenges brought about by Chinas entry into the WTO! As he spoke, he glanced at Chang Haonan next to him with a slightly grateful look. Although the operation of the Equipment Industry Department has gradually been on the right track in the past year, as the director, he will never forget who provided huge technical and market support when the work just started. It can be said that without the shocking turnaround of the bearing and gear product line in Europe two years ago, China''s machinery manufacturing industry would have been groping in the dark for a long time. As for what to do to meet the challenges Dont even think about it. It is good to be able to survive the impact of others and succeed. ?Of course, until now, Huaxia products are still not very competitive in the high-end European market. ?However, being able to go from "a no-name brand that you won''t even look at unless all other products are sold out" to "a high-volume, cost-effective choice" is already a huge improvement in itself. Brand effect, whether it exists or not, is a qualitative change. At the same time, Chang Haonan on the sofa also felt the eyes from behind. Frankly speaking, even he cannot estimate the impact that China''s joining the World Trade Organization nearly two years in advance will have. As Ding Gaoheng said, most industries must be prepared to be impacted. In this process, losses and losses are certainly unavoidable. On the other hand, forcing certain industries to make changes through external forces was originally one of the goals that China hoped to pursue when joining the WTO. ?Chang Haonan suddenly had a sense of dj vu as a parent. ??I want my children to go outside to receive experience, but I am also worried that my children will be injured and suffer a disadvantage. How to grasp this balance is an eternal problem. Director Lan should not have too much psychological burden. He did not look back, just stared at the news picture on the TV screen: When we were planning to establish the Equipment Industry Department, we made a decision to focus on the big ones and let go of the small ones. It is not necessarily a bad thing if some fields are subject to some external impacts..." ?Although this sentence is in response to Lan Xinzhi, to a large extent, Chang Haonan is also saying it to himself. ?The good news is that his current two main businesses, the Aviation Power Group and the Torch Group, will basically not change as a result of Chinas entry into the WTO The former is relatively closed, while the latter has already been sold all over the world. The day China signed the agreement was January 11, 2000. ?Chang Haonan originally thought that no matter how efficient it was, the impact of joining the WTO would not be apparent until the agreement officially came into effect. Therefore, after he finished dealing with the Varyag fleet passing through the Black Sea, he returned his main focus to the Torch Laboratory. First, I found a project for Li Yabo from Haofei Group, which was to develop an all-composite shell with a diameter of 1 meter. Then, it is about continuing to advance the topic of the manifold learning algorithm at hand. And focus on some trends in differential geometry According to the previously set schedule, Perelman will visit Beijing Hang University at the end of this month. ?Although Chang Haonan is not a professional mathematician, when facing such a big boss, respect must still be given. However, the peaceful days did not last long. ?Before waiting for Perelman, he first waited for another completely unexpected acquaintance. Lao Qin? Chang Haonan received a notice that several comrades from the petroleum system wanted to discuss projects with him. When he entered the reception room, the first thing he saw was Qin Wengui sitting on the sofa on the left. ?Seeing Chang Haonan walk into the room, everyone who was sitting on the sofa chatting stood up almost at the same time. ??Qin Wengui, the only person who had known Chang Haonan before, quickly stepped forward and shook hands with him: Hello, Professor Chang. Then, he turned sideways and introduced the other people who had stood up: These are our comrades from the Pipeline Bureau of China Petroleum and Natural Gas Company. They would like to come to you to consult on some engineering mechanics issues. This is indeed Chang Haonan''s housekeeping business. It''s just that he has never had any business dealings with the oil system before. Immediately afterwards, Qin Wengui stretched out his palm and pointed at the other person who had been standing next to him: This is Huang Hewei, Director Huang, Deputy Director of the Pipeline Bureau and General Manager of the Domestic Business Department. ?It seems that this person should be the talker who led the team here today. As soon as he finished speaking, Huang Hewei took a step forward, shook hands with Chang Haonan and said enthusiastically: The year before last in the Great Hall, I saw with my own eyes Mr. Changs style of winning three awards alone. At that time, I wanted to get to know you, but I never had the chance. Today I finally caught up. The flattery is spot on, but it doesnt make people feel too deliberate. ?However, Chang Haonan has seen a lot in these years, so he just smiled casually: "That''s all in the past. When it comes to research, the main thing is to look forward." As he spoke, he stretched out his hand to signal everyone to sit down again, and he also sat on the main seat in the reception room: I dont know if Director Huang has brought a team here this time. What specific questions do he want to consult? ?Seeing that the topic has entered, the expression on Huang Hewei''s face also became serious: I think Mr. Chang may have heard of the West-East Gas Transmission project? Chang Haonan nodded: I saw it on the news. ?Even if you havent had time to pay attention to this kind of big project in this life, you must have heard about it in your previous life. Then Ill keep the story short and wont introduce the situation of the West-East Gas Transmission Project itself. ? Huang Hewei continued crisply: Thats right, our Pipeline Bureau is preparing to bid for the construction projects of two sections of the Longyuan section of the West-East Gas Pipeline, with a total length of approximately 430km. However, after on-site investigation, we found that this area contains subsidence zones, loess caves, sandy soil, seasonal frozen soil, etc. The geological characteristics are very complex, and the gas pipeline is a thousand-year project related to peoples livelihood, so there is no room for sloppiness. " "A few days ago, I accidentally heard that you had cooperated with the Institute of Computing Technology of the Academy of Sciences to produce a set of engineering design tools for the Qinghai-Tibet Railway project. The railway department rated it very highly, so I thought about having Comrade Qin Wengui introduce it. Lets see if you can give us some guidance from a theoretical level, which can also improve the success rate of our bidding. Of course, you dont have to worry about funds. Compared with other units, Huaxia Petroleum has relatively sufficient funds... Chang Haonan believed this. As for the petroleum system, there is certainly no shortage of money. but Director Huang, with all due respect. He considered the sentence: If I remember correctly, the West-East Gas Transmission Project has not officially completed the project approval process yet, right? As Party B, you still need to understand the situation clearly before taking on a topic, especially such a complicated topic. If it is an ordinary project, it is possible to find someone to do the work first, and then go through the bidding process. ??However, the West-East Gas Pipeline is a landmark project of the western development that has been approved by the highest level. Anyone who dares to do this may think it will last forever. High and low projects must be approved first, then tendered and finally started. ??And if you calculate it this way, even if you plan ahead, the other party will arrive too early. You should know that for a state-owned enterprise, it is quite troublesome in terms of the process to spend money for research when there is no project. ?In Chang Haonan''s impression, the Pipeline Bureau is a semi-monopoly unit, and it seems that it is not appropriate to rush into this situation. Alas... you always dont know something. Huang Hewei raised his hand and smoothed his hair: Isnt our country joining the WTO? One of the conditions is to open the West-East Gas Pipeline to full market operation and open the pipeline construction project to open bidding around the world. Is that so? ?Chang Haonan raised his eyebrows, with a hint of surprise in his tone. Previously he had talked to Ding Gaoheng and Lan Xinzhi about the catfish effect that might be caused by joining the WTO. As a result, it has only been a few days, but the impact has already been seen. I can only say that the effect was immediate. But Huang Hewei next to him didnt know why Chang Haonan was surprised. He thought it was this comrade with a military background who was worried about the countrys energy security, so he quickly explained: Only the pipeline part has been brought into market-oriented operation. The upstream oil and gas fields and downstream receiving stations are still in our hands, so we dont have to worry about energy security. "It''s just that we feel that the West-East Gas Transmission is a key project of our country after all. If all the projects are taken over by foreigners after the public bidding, it will be a big loss. Therefore, after discussion within the bureau, it was decided that at least Concentrate our efforts to win the most representative section. Considering that our technical foundation is relatively weak, we must make some targeted preparations in advance, so I thought of coming to you." ?Chang Haonan nodded slightly, indicating that he understood: Do you have a more detailed report on the geological conditions obtained through your investigation? Of course there is, and we brought it over this time too. As he spoke, Huang Hewei took out two thick piles of information from the briefcase next to him and handed them to Chang Haonan: Please take a look. The latter took it, put it on his lap, opened it and looked at it. ?It is true that as Huang Hewei said just now, there is no serious foundation under these more than 400 kilometers of pipelines. It is either loess or sand. If the pipelines are laid directly on top, they will settle and deform in a few years. If you consider geological disasters and extreme weather, it will be even more troublesome. Absolutely a **** of a construction project. ?Its just that From another level, it also means that it is challenging. ??More importantly, compared to pure engineering mechanics, this topic will also involve areas that Chang Haonan has always wanted to study but has not yet found a focus - Computational materials science. So, he decided. Next. (End of this chapter) Chapter 816 Market competition education Chapter 816: Education in Market Competition Even though I decided to take it, for such a big job and involving the background of the West-East Gas Transmission, I definitely cant sign the contract with just one persons nod like buying vegetables at the wet market. Especially considering the nature of the Torch Laboratory, this matter needs to be reported to the school and even the group. At least let me know. ?Of course, Chang Haonan himself is a professor at Beijing Hang University, and he is also the leader of Torch Group and even Aviation Power Group... So his decision-making power is also very important. Director Huang. Chang Haonan said and put the two materials on the table together: If this matter is to be implemented as a research topic, this level of data alone will definitely not be enough. I will also need more detailed geological analysis and investigation. You know, our laboratory has just been established. Firstly, there are not enough manpower, and secondly, there are no experts in the field of geosciences, so For those foreign companies with rich experience in the field of pipeline construction and oil and gas transportation, many times they only need to conduct sampling at a few points to infer what specific technology should be used for local construction. This is an advantage they have accumulated over the past decades or even hundreds of years. As a newbie in this field, Huaxia Petroleum does not have these things at hand, so it can only start from scratch and use "stupid methods" bit by bit. ?Even with Chang Haonans technical support, at most, some failures or repetitions in the project can be reduced. It is impossible to save on advance preparation. On the contrary, because numerical analysis requires more detailed data, the requirements have become higher. Huang Hewei naturally understood what Chang Haonan meant instantly: "Don''t worry, our bureau has entrusted comrades from the Exploration and Development Research Institute to conduct more detailed exploration of the areas along the line that have not yet been explored. Huaxia Petroleum already has oil and gas exploration business in Longyuan. The reason why the group decided to specialize in these two The bidding section is also because it is relatively close to our existing projects, so it will be more convenient to send a team there. After the project is officially launched, we will take the lead in setting up a platform for you to communicate directly with the Exploration Institute. If you are willing, you can also share the project with them. At that time, you only need to indicate the budget and work allocation in the contract. If it can be like this, that would be the best. Chang Haonan nodded: "Well, in principle, I am willing to accept this project. After you go back, try to prepare a complete project plan and research agreement before the year. After I confirm with the school and the group that there is no problem, we can officially start ?However, after hearing his request, Huang Hewei turned his head directly and gestured to a staff member who had always been sitting at the bottom. The latter immediately left his seat, took out a kraft paper-sealed portfolio from his bag, and handed it to Chang Haonan. ?This set of smooth operations, coupled with the slightly flattering smile on Huang Hewei''s face, almost made the latter think that this was to give himself extra benefits. ?However, after subconsciously taking the file bag, I realized that it should be A4-sized document paper, not banknotes. Chang Haonan, who was secretly relieved, took apart the binding rope. Inside the bag are three copies of the stapled agreement document. "Mr. Chang, we have already prepared what you mentioned before coming here. Please take a look at it in the next two days. If you have any questions, you can contact our bureau office, or you can contact me directly. This is mine. business card." Huang Hewei took out a beautifully printed business card from the inner pocket of his coat, handed it to Chang Haonan, and then continued: If we can reach an agreement on the content of the agreement, we hope to implement the issue before the Spring Festival. ?Chang Haonan did not respond immediately, but just lowered his head and opened the agreement. I have to say that the efficiency shown by Huaxia Petroleum in this matter made Chang Haonan feel ashamed. ?Especially when it comes to money, its amazingly positive The project is planned to last three years, with a total funding of 2 million yuan, 50% of which will be paid in the first year, and 25% in each of the following two years. This is the year 2000. And it is a purely computational research content. The research work is also carried out by a third party. In other words, the cost is almost only the operating expenses of the supercomputer. ??As for the electricity bill, Torch Laboratory can also enjoy subsidies from the capital, and the price is more than half lower than that of city electricity. It can be said to be very generous. You must know that the petroleum system has not yet been completely de-administrated. If we follow the normal process, it will take more than half a year from the proposal of the project to its implementation. I am afraid it will be difficult to complete. Hearing what Huang Hewei meant today, he planned to shorten the time consumed by this process to half a month. It can be seen that this is a sudden open competition, and it is really urgent. It is not even ruled out that the funds were raised by borrowing some gray means (small treasury). ?However, as long as the agreement itself is compliant, the source of funds will not have any impact on Party B. Instead, he had some opinions about the payment method. Director Huang, regarding the payment method of this research fund, can you consider changing it to a one-time payment at the beginning of the project? ?If this kind of request were put aside 20 years later, it would be basically unnecessary to think about it. Unless the project duration is only one year in total. ??But if any boss dares to sign such a project, he will probably be drowned in the spit of his graduate students. ?However, at the turn of the century, funding management, especially funding management for horizontal projects issued by companies, was generally wild. ?As long as Party A is willing, it is not impossible to give it all at once. In fact, when Chang Haonan was studying for his Ph.D. in Du Yishans research group, several projects were operated in this way. "this" Huang Hewei obviously hesitated: Mr. Chang, let me tell you straight away. Within our group, if we use more than one million funds, we must strictly implement the approval process. That efficiency... You are also the leader of a large central enterprise, so you should have an idea..." This is basically an admission that they took the money out of a small treasury. And if the amount is too large, there is no way to go to the small treasury. After a pause, Huang Hewei continued: And Mr. Chang, for a three-year project, its impossible for you to finish everything in the first year... ?Chang Haonan looked at Huang Hewei and opened his mouth several times, but in the end he didn''t speak. Actually, this is what he was thinking about. What is the concept of three years? ? It took him just over three and a half years from designing the J-7F in class to installing the turbofan 10 on the J-10A and J-11B. ??Although the cycle will definitely be longer when it comes to ground-breaking projects, it is unlikely to take that long. If it is a general project, then he can put the results aside after finishing them all. Then gradually hand in a little bit every year until the end of the question. But this time, after all, it is about a strategic project like the West-East Gas Transmission. It must be unreasonable to deliberately delay time. ??However, if the question is completed in advance, the funds will be wasted. ?Compared with other scientific research institutions of the same era, Torch Laboratory is not short of money. But the more funds, the better. At this time, Qin Wengui, who was standing next to him, saw the crux of the problem: Mr. Chang, Director Huang. ?He spoke quickly, breaking the slightly awkward silence: I think it would be better to add an additional clause at the end of the agreement, stating that if the project can be ended early, the remaining funds will be paid to the Torch Laboratory in the name of personnel expense subsidies or equipment fee reimbursements. How about that? ??If this proposal came from Chang Haonan, it would definitely seem a bit deliberate. But Qin Wengui solved this problem by speaking out. So, both parties were very happy and agreed to keep in touch after returning. If all goes well, the agreement will be officially signed in early February. ?After chatting about work-related topics, Chang Haonan followed the usual practice and expressed the hope that the other party would stay and have dinner together at Torch Group. ?However, Huang Hewei decisively refused: Mr. Chang, we accept your suggestion, but before we get off work today, we have to go to the Exploration and Development Research Institute to check in with them on the situation, so as not to delay the business. After speaking, he pointed to the agreement on the table next to him. According to the content, Torch Laboratory and Exploration and Development Research Institute belong to Party B in parallel. It needs to be signed by both parties to officially take effect. More importantly, the work the Exploration Institute is responsible for is the basis of the entire research. Okay, lets talk about it later when we have a chance Chang Haonan stood up and sent Huang Hewei and his party outside the computing center. After watching several people get into the car, he looked down at the agreement in triplicate in his hand, reached out and flicked it lightly. Then he said to himself: This market competition seems to be able to educate people... (End of this chapter) Chapter 817 ZY2, hyperspectral remote sensing satell Chapter 817 Ziyuan No. 2, hyperspectral remote sensing satellite ?The entire research agreement is dozens of pages long, and Chang Haonan has neither the energy nor the legal knowledge to read it bit by bit. Therefore, after he only confirmed that a few key clauses met his requirements, he threw the three templates to the group''s legal department, the school''s legal affairs office, and Liu Chenchen in the laboratory, and asked several parties to confirm whether there were any other parts. problems or bugs. The happiest person about this matter is actually not Chang Haonan himself For him, it is just a project with a funding of about 2 million yuan. Although it is not a small amount, it is not a big deal compared to other projects he has done in the past. ??If the research content was not related to computational materials science and could be used as a good entry point, then he might even hesitate to proceed. But Tang Lintian. ?Of course, its not because of funding issues. For general research groups, the funds applied for are generally plucked by schools, with one-third to one-half being withheld. ?However, the treatment of the Torch Laboratory in this regard is obviously different, and it is impossible for the school to do such a simplistic thing. Its because of the broader background of this topic. ??Although Beijing Airlines has now become one of the 10 founding universities of the 985 Project, Tang Lintian soon discovered that such a name alone did not seem to be enough. It doesnt mean that if your schools name is put together with that of Qinghua Yanda, its status in the eyes of ordinary people will be on an equal footing with others. Let alone these two, even among the five schools in East China, Beijing Airlines still lacks some influence. ?The things that Chang Haonan has done in recent years are indeed earth-shattering in the industry, but due to well-known reasons, most of them are not convenient for publicity. At the end of the day, the schools business in the past was too monotonous. China has a large population base, so it seems that there are a lot of people who are interested in aviation, or people who are interested in aviation. But if we really talk about the proportion, we can see that they belong to a niche group. It doesnt matter if the cake is not big, there are still several schools to share. Therefore, as the principal, Tang Lintian currently wants to expand the schools reputation and business. The previous mathematical paper by Chang Haonan and this unexpected surprise from the petroleum system are undoubtedly very important landmark events. Professor Chang. After the schools regular end-of-semester examination meeting, Tang Lintian did not leave immediately. ?After Chang Haonan stayed at the school as a professor, he took up half of Fang Zhens course. ?Although you will definitely not go to class, you still have to attend these meetings. Hearing someone calling him to stop, Chang Haonan, who was about to run away among the crowd, turned around and found that Tang Lintian was still sitting at the head of the conference table: Principal Tang? By the way, Principal Tang, you should have read the agreement I submitted to the schools legal office a few days ago. ?There should be someone dedicated to deal with this kind of thing, but Chang Haonan has already met anyway, so why not ask by the way. Have seen it, I was just about to tell you about it. ??Tang Lintian stretched out his hand and motioned for Chang Haonan to sit next to him: We have analyzed the content of the agreement with the legal consultant we have cooperated with in the past, and there is nothing wrong with it. To be honest, as for the last additional clause in it, I have never even thought about it. What he was talking about was naturally that "if the project is completed ahead of schedule, all subsequent research funds can still be obtained." ?Chang Haonan just smiled: Comrades in the petroleum system still trust me, and they can also feel that the West-East Gas Transmission is completely operated in accordance with market principles, which puts a lot of pressure on them. Eh...it would be better if they were under more pressure. They were all talking among themselves. Tang Lintian almost blurted it out, but he probably felt that it didn''t seem right, so he quickly added: I mean, pressure is motivation After some chatting and laughing, Tang Lintian suddenly said seriously: "Professor Chang, in fact, it''s not just you recently. There are several other research groups in our school that have also received research topics related to the West-East Gas Transmission Project. However, none of them are from Huaxia Petroleum. Directly funded. Im thinking that for such a complex system project, there must be connections between several of your projects. Maybe we can coordinate and cooperate with each other? ?Chang Haonan did not interrupt, but just motioned for the other party to continue talking. Like this Meng Zhenyuan, Associate Professor Meng, he received his project from the National Space Administration. "Um?" Following the direction indicated by Tang Lintian, Chang Haonan noticed that there was another young-looking person sitting in an inconspicuous position in the conference room. After hearing his name, the man stood up and came to the seat next to Chang Haonan. Hello, Professor Chang, I am Meng Zhenyuan, from the School of Astronautics. ?Completely contrary to his name, Meng Zhenyuan doesn''t speak loudly, and even gives people the impression of being a bit introverted. Chang Haonan had no impression of this person. Since Beijing Airlines specifically changed its name from "Beijing Aviation College" to "Aeronautics and Astronautics University", it must be both aviation and aerospace. But no matter in the previous life or this life, he never paid much attention to the other side. In fact, at this time of the millennium, Beijing Airlines aerospace professional presence is not particularly strong. ?However, a professor from the Beijing Institute of Aeronautics and Astronautics later became an astronaut and became popular all over the country. That is another story. Zhenyuan, please introduce your project to Professor Chang. ?Although Chang Haonan has only been teaching for half a year, his name is definitely well-known within Beijing Airlines. ??If the cooperation mentioned by Tang Lintian can really be realized, then it cannot be anyone else who takes the lead. Therefore, whether this cooperation is feasible or not must be left to Chang Haonan to judge. "good." ? Meng Zhenyuan got to the point directly: In fact, according to the original plan, the West-East Gas Transmission Project should not be officially launched for another two years, but because the WTO accession negotiations involved relevant liberalization clauses, it was moved forward. "But as a result, the previous survey plan along the entire pipeline project cannot meet the requirements. In order to improve efficiency, in addition to sending two remote sensing aircraft to participate in aerial remote sensing, the superior unit has also planned to launch resources in advance since last year Two remote sensing satellites No. 2 01 and 02. "Ziyu-201 is equipped with a hyperspectral digital imager specially imported from France at the end of last year. It has 244 spectral bands and can provide a spatial resolution of 10 meters and a spectral resolution of 7.5nm. The hardware The performance is quite advanced. But this is the first time our country has come into contact with this type of satellite-borne hyperspectral remote sensing equipment. My research team is responsible for extracting and analyzing remote sensing data at several important locations along the route..." With the current relationship between China and the EU, restrictions on such non-military (at least on the surface) equipment have basically existed in name only. Except for some of the most cutting-edge products, they can basically be purchased. Just need to pay more. So, our cooperation is to Chang Haonan looked puzzled. "During the research process, the accuracy of extracting remote sensing data needs to be compared with on-site measurement data. Even during the application process, it needs to be checked at certain distances and times. Our project is obtained from the space agency. If you need to contact the exploration department to get it, the procedure will be more complicated..." ?This time Chang Haonan understood. So, Professor Meng is interested in the first-hand geographical and geological information I can get from the Exploration and Development Research Institute for this topic? Thats right. ?Meng Zhenyuan nodded: This can save one administrative procedure and the efficiency will be much higher. Of course, we cannot take advantage of you unilaterally. After the aerospace remote sensing data stabilizes, we will provide it to your project as soon as possible! (End of this chapter) Chapter 818 Perelmans visit Chapter 818 Perelmans visit ?This kind of win-win thing, not to mention that the power of decision still belongs to himself, Chang Haonan naturally has no reason to disagree. ?But there is still a key issue. Professor Meng, from what you just said, the two satellites should not have been launched yet. Is there a specific planned time? Chang Haonan asked: You know, my tasks here are also quite heavy, and I cant wait for the satellite to go up to the sky before starting research. ?Meng Zhenyuan quickly waved his hand, indicating that he didnt need to wait for a long time: According to the earliest plan, the Ziyu-2 01 satellite should be launched no later than the end of this year, and the 02 satellite should be launched no later than the end of 2002. "But at the end of last year, the National Space Administration temporarily adjusted its plan and arranged the launch of the two satellites in February and April this year respectively. At that time, together with the already-launched Ziyuan-101 satellite, they will form a revisit cycle of about 20 Hourly remote sensing satellite system. However, specifically for our research, only the Ziyu-201 satellite is equipped with hyperspectral detection equipment. In addition, this satellite is not designed with a side swing function to ensure imaging accuracy, so the revisit period is still almost a month. ?Chang Haonan''s eyes lit up. ??If the 01 satellite can be launched in February, then the first batch of remote sensing data should be available by March at the latest. Although in geology, neither aircraft, satellites nor numerical calculations can truly replace field surveys, there is no doubt that they can greatly improve the overall surveying and mapping efficiency. ?Hone the knife and cut the firewood. Anyway, there is still a new year in between. Waiting until March actually wont lose much time. ?However, the other partys answer still puzzled him: Its so far in advance... So if the satellite is launched according to the original plan, will the satellite, especially the 02 satellite, have to wait on the ground for more than a year? "Well" Hearing Chang Haonans question, Meng Zhenyuan touched his nose: "Mr. Chang, you may not know this. On the one hand, due to the frequency of rocket launches, it is not particularly uncommon for satellites to have to wait several months or even longer after completing factory inspections. On the other hand, the two Ziyuan No. 2 The satellite was indeed rolled off the production line much earlier than originally planned by using some imported parts. So thats it Chang Haonan nodded: It seems that the country has put a lot of effort into cooperating with the market-oriented operation of the West-East Gas Transmission ? He ??knew before that the West-East Gas Transmission Project was part of Chinas systemic energy security strategy, but it was indeed unexpected to modify the space launch plan specifically for this purpose. However, this was a misunderstanding on his part. This time it was Tang Lintian who explained: "The early launch of these two satellites is not entirely for the West-East Gas Transmission Project. According to the national plan, there are almost six or seven strategic-level projects that will be launched or started in the next few years, each of which requires a large number of geographic information systems ( GIS) data. If we rent a remote sensing satellite from a foreigner, not only will the price quoted by others be higher, we will also need to provide on-site measurement data for verification and comparison, and we will even be asked to grant them geographical surveying and mapping rights! Speaking of excitement, Tang Lintian knocked on the table with two fingers, with a bit of anger in his tone: This is part of national sovereignty, how can it be opened to outsiders casually? In comparison, just using some imported parts on satellites is not a big deal. ?At this time, Meng Zhenyuan next to him also interjected: Actually, the key is that in the past year or two, due to various reasons, we have been able to buy some parts that were not available in the past. If we had left it in the past, even if we were willing to pay for it, we might not be able to spend it. This statement is relatively realistic. Take France, which sells the hyperspectral detection equipment. Although it is already a relatively active country in Western countries in exporting technology to China, at critical times, it will often restrict exports in the name of "affecting national security." set. But now ??Its so funny, youve already taken over the power of your next-generation main fighter jet and started joint development with us, so why are you pretending to be a big-tailed wolf? So, if someone says that you affect his national security, then you''d better really affect his national security. Collaboration within the same school naturally does not need to be as serious as with outsiders. ??Witnessed by Tang Lintian, the two research groups simply signed a cooperation agreement and expressed their willingness to share some of the data generated during the research process. ??As for the remaining groups, the topics at hand are relatively light, and they should just focus on the projects of Chang Haonan or Meng Zhenyuan. After this matter came to an end, as time passed day by day, it soon came to the end of January. ?Although there are other matters at hand that have not been completed, Perelman''s visit is indeed more important in comparison. On the one hand, this man was already considered a great figure in the field of differential geometry even before he solved the Poincar conjecture. On the other hand, although Chang Haonan is not ready to invest major energy in purely theoretical fields at the moment, based on his experience over the years, the improvement of [theoretical level] experience and level in the system will be of great help to all types of scientific research work. Now that his theoretical level has reached LV3, it is very difficult to improve his level by completing ordinary small projects. ? And face-to-face communication with a top mathematician is likely to get twice the result with half the effort. In view of this, Chang Haonan simply went to the airport in person and picked up the visiting team from the Steklov Institute of Mathematics. To be honest, if Chang Haonan hadn''t specifically asked someone to look for the other party''s information, it would have been difficult for him to recognize at a glance that the man in front of him, wearing a semi-old cotton coat, with a full beard and a slight bald head, was the famous mathematician Grigory. Perelman. Hello, Mr. Perelman. Chang Haonan stepped forward and shook hands with the other party. ?Perelman has been studying in the United States for many years and can naturally understand English. It seems that you are Chang Haonan, Professor Chang. ?The other party looked Chang Haonan up and down, and then continued: Ever since I saw the paper in November last year, I have been wondering what kind of person its author would be. When I met him today, I found that it was indeed similar to what I thought. ??Although Perelman is indifferent to fame and fortune and has a somewhat eccentric personality, he still looks like a mad scientist. ??But this does not mean that he is a withdrawn or mean person. In fact, the indifference he usually displays is simply because he rarely encounters equally matched opponents. So, after meeting Chang Haonan, he behaved more like a "normal person". Lets get in the car first and lets talk on the road. ?Chang Haonan motioned to the other party to the minibus next to him. ?Perelman nodded, but before taking a step forward, he looked at the two entourage members standing next to the car door. Judging from the way the two of them crossed their hands in front of their bodies, they should be the members responsible for security. Actually, theres no need to create such a big battle. Im just an ordinary person who knows a little bit about mathematics He said to the former while following Chang Haonan into the car. But Chang Haonan''s English is not good enough to understand clearly the sentences with Slavic accent and speaking at an extremely fast speed. Hence this sentence is conveyed through translation. After hearing this, he could only sigh. Today I met my opponent. At all levels. Chang Haonan originally wanted to reply: Don''t think too much, these people are protecting you just by the way, mainly to protect me. But while he was hesitating, Perelman had already taken out a notebook from his cotton coat pocket and began to discuss with him the convergence theorem and singular model mentioned in the last email... ?The three cars stopped and went all the way, maybe it was during the rush hour, so they didnt arrive at the arranged accommodation until near evening. ? Before getting out of the car, Chang Haonan was shocked by the greeting team headed by Tang Lintian and consisting of dozens of people outside. Not to mention Perelman next to him. ??The latter can be considered a person who has seen the world, but even in places like MIT, Princeton, and Columbia, he has never encountered such a pomp. Chang, I believe that you, China, must be a promising nation. He put the notebook back into his pocket and looked at the scene outside the window. ?) Chang Haonan, who was already a little confused, was even more confused by this out-of-the-way sentence. ??He even checked the other person''s expression specifically and found that it looked sincere and did not look like he was being arrogant: What does this have to do with the hope of our nation? I have never seen anywhere else where a mathematician is treated with such dignity. ?Chang Haonan is a little difficult to stretch. It is said that after I entered the Pass, a great scholar would argue for me. How come someone has already defended me before I even entered the customs? ? He ??said that this was just because few big figures in the field of mathematics came to China for academic exchanges in the past, so scholars of your level are already considered extremely rare guests. ?Havent you seen Tian Gang from Yan University next door? In order to invite a relatively famous mathematician to give a report on the platform, he begged his grandfather to sue his grandma. But this is certainly not the case in the American mathematics community where big bosses are everywhere. The degree of emphasis is naturally different. And if you dont disappear after proving the Poincar Conjecture, you can probably experience more grand treatment than this anywhere in the world... (End of this chapter) Chapter 819 Two ways of proof Chapter 819 Two ways of proof Perelman himself understands the problem, but does not like this exaggerated pomp. ?Perhaps this is one of the reasons why he chose to retire after proving the Poincar Conjecture. So, in the end, these dozens of people were dismissed. ?Only a few people with high enough status are left behind who are really difficult to drive away. ?Among these people, Perelman only had a brief encounter with Tian Gang, and as for the remaining few, he really had little impression. ?So after Chang Haonan introduced them, they just said hello and walked to the hotel lobby with the other people who got off the car. It''s not that China can''t even find a third scholar with a name and a surname who has appeared in a well-known mathematics journal - although the field of theoretical mathematics in China is a bit thinner, it is not so shabby. Mainly those who are here today are either researchers in the field of differential geometry or leaders of several colleges or schools with strong mathematics majors. Inside these people. There''s really no one that''s too famous. Scholars from other unrelated research fields may come to listen to a lecture, but they will certainly not join in the fun. Thats why there was this rather embarrassing scene ?Of course, its definitely not Chang Haonan and Perelman who are embarrassed. By the way, Professor Tian. Perhaps to lighten the atmosphere, someone suddenly asked Tian Gang next to him: I remember that according to the arrangement, Professor Perelmans report should be scheduled for tomorrow morning, so on your side ?This question was somewhat inappropriate, and the atmosphere at the scene did not really relax. Tian Gang looked at the retreating figures of the group over there and sighed softly: I have no choice, I bumped into this guy, so I can only postpone it for a few days. To say he is depressed, he must be depressed. After preparing for so long, only to be upstaged by a school that is not good at mathematics at all, who are you going to explain? ?But its not like he has nothing to do. At least at this time, Perelman was not among the most influential mathematicians. After all, he hasnt won the Fields Medal yet. ?Hence, Tian Gang''s idea is also very clear. He just needs to use his connections to find a way to hire a higher-level boss. Thinking of this, he had already begun to select suitable and possible candidates in his mind... Perelmans visit had been publicized as early as the beginning of the year, so on the day when the lecture was scheduled, the venue was already packed more than an hour before the official start. In addition to professors and researchers, there are actually many students. Some of them are mathematics majors and really want to listen to something. ?There are also some who are just joining in the fun. At the front of the lecture theater, todays title is displayed on a huge curtain Reduced Volume and Non-local Collapse Theorem ? and slightly below, indicate the inviter of this lecture: Professor Chang Haonan. Chang Haonan...is he Chang Haonan who proved Changs Lemma last year? In the back row, a student-looking audience member whispered to the companion next to him. Obviously, this name is not as famous in the mathematics world as it is in the aviation world. It should be so. I remember that Changs Lemma is also a result in the field of differential geometry and is very close to Perelmans research direction... The companion next to him replied: And there are very few scholars studying this field in our country, so it is unlikely that there will be two people with the same surname ?Of course, more people are still paying attention to the topic of todays lecture. Its not that Chang Haonan is unimportant. Instead, it means Professor Tian, ??this non-local collapse theorem, pardon my ignorance, is it the latest achievement in the field of differential geometry? Another professor sitting next to Tian Gang asked with a slight frown. He feels that even if Chinas research level in this area is not high, it should not be able to understand other peoples results. ?However, today I didnt even see the speaker, so I started doubting life ??More than just the results, why cant I even understand the title? But Tian Gang also hesitated for a moment, and then shook his head: Non-local collapse is a very common concept, but the theorem... Obviously, he hasnt heard of it either. But as a scholar who gave a 45-minute report at the International Congress of Mathematicians, he still has a lot more knowledge: However, it is said that Perelman has a very strange habit. He sometimes publishes his results directly without going through any journals. Is there such a person? The professor next to him was immediately shocked: In other words, this may be a new achievement? Hmmits possible. Tian Gang nodded: "But strictly speaking, any result cannot be called a theorem before it is widely recognized by the mathematical community..." ? ? ? Having said that, almost everyone who heard this conversation made the same move in unison. . Take out the notebook. Open. Take out the pen. Prepare records. The reason why I say almost is because some people are still busy borrowing pens and papers from around, so the response is a few beats slow... Actually, we cant blame them for not bringing pens on such occasions. This kind of lecture, whether at home or abroad, is actually not of high academic value. After all, in most cases, what you talk about is what you have already published. And these contents have already been seen by those who should see them. So the core depends on the influence of the person standing on the stage. Its just that I met such a strange person today. ?Just as everyone in the audience was guessing the content of today''s lecture, Perelman finally appeared on stage, wearing a neat suit. But his first sentence did not mention himself: I think everyone here should have read the paper published by Professor Chang Haonan in the Annals of Mathematics in December last year. ?His English still has a peculiar accent and vibrato, but it is obvious that he has deliberately slowed down his speaking speed to ensure that most people can understand him. So, when this sentence ended, everyone''s eyes turned to the edge of the first row. ?Chang Haonan is sitting there. He had previously known the title of Perelman''s lecture today. Although he did not know the content, considering that the non-local collapse theorem was something that the other party had discussed with him via email, he was already prepared for his name to be mentioned. Prepare. Facing hundreds of looks, Chang Haonan just turned around slightly, smiled and nodded. Based on Changs theorem, I discovered another rule. ?Perelman turned around and pulled several blackboards to his side. For mathematicians, even if they have PPT and projectors, they often prefer traditional tools such as blackboards or pen and paper. Next, I will show you how to give a local injective radius on a specific higher-order manifold. After speaking, he began to write quickly on the blackboard. Let g(ij) be a complete manifold on M, and satisfy g(ij)/=2R(ij) The secretary next to him also started to follow his steps and kept turning the pages of the PPT... Hour and a half. A full hour and a half. ?Perelman spoke with ecstasy. The audience in the audience was in a state of ecstasy. ??The Ricci flow on high-order manifolds is extremely abstract. In addition, it has not been long since Chang Haonan''s paper was published. Not everyone can understand it and use it flexibly immediately like Perelman. Therefore, except for Chang Haonan, who had seen this idea a long time ago, he basically didnt understand it. Including Tian Gang. ?But he is better than others, at least he can barely keep up with his thinking. Of course, this is nothing unusual for theoretical mathematics. After all, it is a new theorem. Let alone a lecture, even a paper will take several days or even months to study. So, everyone has written down Perelmans proof process diligently. Go back and take a look. No matter what, they all witnessed history at least once today. Its not a loss. However, at this time. ?Perelman turned around and picked up the blackboard eraser from the table next to him. Then, I returned to the blackboard. Everyone in the audience suddenly felt an ominous premonition. ?Sure enough, Perelman took a deep breath. Then. Erase what you have already written. The demonstration I just gave is a wrong example. ?Chang Haonan realized for the first time that "a gasp" really made a sound. He suddenly felt a little sorry for the hundreds of listeners today. Of course, this does not mean that this proof itself is wrong. ?Perelmans next words finally calmed down the audience, whose hearts were about to stop beating. Its just that after I sent this conclusion to Professor Chang, he showed me a more subtle solution. (End of this chapter) Chapter 820 The key to Poincarés conjecture Chapter 820 The key to Poincars conjecture ?Perelman didnt simply rewrite the steps Chang Haonan originally sent him For a mathematician of his level, doing such a thing is somewhat demeaning. But based on that proof method, some optimizations have been made. In order to further reflect the beauty of this proof, we first introduce a concept: -length Do you still remember this? While Perelman was writing equations on the blackboard, a young teacher looked at the blackboard that had just been wiped clean and the notebook in front of him with several densely written pages. He shook his sore wrist and said, He asked in a low voice to his girlfriend next to him. ??He is not a researcher in the direction of differential geometry. He was just a ruthless note-copying tool just now, and now... I really cant write anymore. Of course you have to memorize it. You see even Professor Chang is lowering his head to memorize it. Are you better than him? ?Several people nearby who heard this sentence instantly cast their gazes into the distance... ??Sure enough, Chang Haonan, who had just been sitting and listening, now took out a notebook from nowhere and was writing and drawing in it. There was another gasping sound. Then there was a sound of turning pages. Finally, there is the rustling sound when paper and pen are rubbed... However, if someone who is relatively close to Chang Haonan takes a look, they will find that what Chang Haonan actually wrote on the paper is not what is on the blackboard. Instead, I drew a ball with a pencil. This is an extremely rare situation. Because for research in the field of differential geometry, high-dimensional spaces are often easier than low-dimensional spaces. ?Take the Poincar conjecture as an example. The Poincar conjecture in five-dimensional or even four-dimensional space has actually been proven long ago. ??However, the barrier of three-dimensional space has never been overcome. It is well known. On paper, it is impossible to draw a high-dimensional space. You can only rely on imagination or calculation. In fact, even what Perelman is talking about on the blackboard at this moment is mainly based on four-dimensional space. However, the content he optimized on the blackboard pointed out a new possibility to Chang Haonan... If this is a free isometric quotient space generated by finite group action, then it seems to be diffeomorphic to a three-dimensional compact manifold... Chang Haonan has gradually lost hearing Perelmans voice: It seems that this conclusion cannot be drawn directly. He frowned slightly: But if a restriction is added...to make the Ricci curvature of this manifold non-negative..." Off the stage, Chang Haonan was lowering his head, immersed in his own thoughts. On the stage, Perelman was giving his lecture as usual. According to the plan, after comparing the three types of singular models, he will be able to derive the same conclusion as just now. ?After using up one blackboard again, Perelman walked to the next one as usual. But this time, he didnt start writing immediately. Instead, he raised his hand and wiped the sweat from his forehead. He has been speaking continuously on the stage for nearly two hours. The energy and physical strength are indeed a bit behind. In fact, the idea on the blackboard was even thought of by him on the plane to China. He used it as the content of the lecture with the intention of introducing it and verifying it at the same time. So, it takes a lot more effort than a simple lecture. Fortunately, the staff nearby had already prepared and took this opportunity to quickly put a glass of warm water on the small table If you are a Chinese scholar, you will usually serve hot tea directly at this stage. However, considering that foreigners may not adapt to this step and may get burned, the temperature was lowered under Tang Lintian''s special care. Perelman was not polite. He came to the table and picked up the tea cup. While drinking water, he looked at the first two blackboards that were already filled with his writing. Suddenly, the movements of his hands stopped. ?His eyes focused on the bottom of the first blackboard. Since this was the first time that this method was systematically sorted out, there were some details that even Perelman himself failed to notice at the first time. There is an inequality. R(-v)[lg(-v)+lg(1+t)-3] Originally, he just used it as a common estimate generated during the derivation process, but looking back now, it seems that some very interesting conclusions can be obtained along this direction... For example, when the curvature tends to infinity at all times, the smallest negative cross-sectional curvature is smaller than the largest positive cross-sectional curvature. In other words, the three-dimensional limit solution must have a nonnegative curvature operator. Thats right, three dimensions. Perelman didnt even have time to put down his tea cup before he turned to look at Chang Haonan sitting in the audience. ??I found that the latter was concentrating on writing something with his head down. At this time, Chang Haonan finally proved his conjecture on paper. He raised his head. ?The eyes suddenly met with Perelman''s. Although the two of them did not say a word, they both saw one thing from their eyes - the other person and themselves were thinking about the same thing. Two top scholars in the field of differential geometry finally reached the same conclusion through relatively independent thinking. That basically eliminates the possibility that this conclusion is wrong. In other words, it is feasible to perform surgery on Ricci flow in three-dimensional space. For the differential geometers of this millennium, there is a consensus. ??To solve the Poincar conjecture problem in three-dimensional space, the geometric method using Ricci flow is more feasible than the direct topological method. therefore. This is probably a key. A key to Poincars conjecture. ?Of course, even if you do open the door with this key, there is still some work to be done. For example, it is necessary to ensure that the appropriate neck area can be found for truncation surgery within a limited number of operations. ??It is also necessary to solve the problem that the general initial metric causes the Ricci flow to produce singular points. but. ?These are all details. It can even be said that it is a problem that can definitely be solved by just spending time. If we say that Chang''s Lemma is only the first step in a long journey for Poincar''s conjecture. ?So todays conclusion Perhaps it can be called the three-dimensional manifold theorem, or more simply, the Perelman-Constant theorem, which can be regarded as "a man who travels a hundred miles is half a mile". ?Of course, neither Perelman nor Chang Haonan would agree to use the combination of the two people''s last names in this place. Because if we continue in this direction, the two people''s surnames will most likely be directly named after "Poincar". At the same time, other listeners below were also taking advantage of this rare buffer period to review the contents of the notes they had just written down. Of course, these people were not involved in the initial derivation of the process on the blackboard, so their mindset dictated that they would definitely think along the steps Perelman wrote on the blackboard without seeing that, at least in It will not be obvious for a short time that one of these humble inequalities will have a historic impact on the entire mathematical world. ?However, most of them are professional mathematicians after all, so it is not possible to gain nothing... I seem to understand ?Tian Gang was the first to raise his eyebrows. ?Although Perelman has not finished writing the entire derivation process at this time, he has already thought of the remaining steps. Compared to the first solution which is a headache, the one currently written on the blackboard is obviously much simpler and easier to understand. It is indeed...an extremely exquisite proof...so that the local injective radius of the compact manifold can be directly calculated..." Its called the non-local collapse theorem and its very accurate His whisper to himself attracted the attention of several people next to him. Soon, Tian Gangs notes were circulated. ?Perelman, on the stage, still stood there with his hands folded, looking at the blackboard in front of him, without speaking. ??The lecture hall that had just been quiet gradually began to hear some whispers. "As expected of Professor Tian... he can get the results faster than me who was the first to do it." A scholar looked at the notebook in front of him, then raised his head to check the half-written content on the blackboard. Where Ive been standing there for two hours, and Ive already pushed halfway through. Its just because of my energy that Ive taken advantage ?Tian Gang waved his hand. ?Having said that, he was still relatively happy - ??Although the result definitely belongs to Perelman, and perhaps Chang Haonan who was just mentioned by the other party, the fact that he can derive it by himself before reading the proof process at least shows that he has not fallen too far behind in terms of ability... ?Of course, he doesnt know yet at this time. Perelman stopped because he saw a path leading to a higher mountain. Compared with these things on the blackboard now, they are not worth mentioning at all... Please give me a few pieces of paper, thank you. After a few minutes of silence, Perelmans first words were not to continue introducing his ideas, but to ask for paper and pen from the floor manager. "Um?" Why do you need these all of a sudden... Is there something wrong with the derivation process? "No way... I just vaguely heard that the previous teachers have already followed this idea, and I understand it and it feels pretty smooth..." Is it possible that even we can understand it, but it is more likely that something is wrong? Dont ?Strange behavior made the scene agitated again. ?But Perelman ignored this. He took the paper and pen, sat in front of the temporary desk, lowered his head and started his calculations... (End of this chapter) Chapter 821 The problem has been solved before it even started? Chapter 821 The problem has been solved before it even started? Finally, after working alone for nearly half an hour, Perelman got up again out of the professionalism of a scholar and finished what was written on the blackboard. ?However, anyone can see it. In this last paragraph, he was already quite absent-minded. Obviously, what was just written on the paper is extremely important. So much that it distracted most of his attention. Fortunately, this method of proof is quite easy to understand and did not cause any other setbacks. This report meeting was overall a success. Especially for Tang Lintian. Although he didnt fully understand. But a new theorem was first disclosed at the little-known Beijing Hang University lecture conference. This incident itself is full of legend. He has even begun to think about how to do a wave of publicity. ?Tang Lintian himself does not understand theoretical mathematics, and most of the experts present just now came from other schools. ??The envious looks from a dozen colleagues really made him feel good, but when he really wanted to find someone of his own to help him with things, it was a bit troublesome. Therefore, immediately after the report meeting, Tang Lintian showed a flexibility that was completely unbecoming of a middle-aged man in his fifties. Like a slow arrow leaving the string, he rushed out of his seat, preparing to stop Zhenghe Pei. Lehrman left Chang Haonan side by side. Professor Chang! ?Hurrying quickly and slowly, we finally stopped the other party at the door of the auditorium. Chang Haonan turned around and saw Tang Lintian breathing heavily behind him. Only then did he realize that he had been too lost in thought and seemed to have left without saying hello. Its really inappropriate. Professor Chang, I... ??Tang Lintian wanted Chang Haonan to help write a draft before he could say it, but was interrupted by the latter. Principal Tang, Im sorry, but Professor Perelman and I will not attend tonights reception banquet. Regarding Chang Haonan''s request, Tang Lintian basically agreed first and then thought about it, so he nodded almost without thinking: "good" Immediately afterwards I realized what unnatural thing I had promised ?Hello guys, I have invited all the schools in the country that have top-notch mathematics departments. ?? People come from as close as outside the Fourth Ring Road and as far away as from Hunan and Min provinces. They cant come here just to see my old face, right? ??As a result, you two VVVIPs cant come together? ??Tang Lintian was numb, and the expression on his face that was full of joy a second ago suddenly froze. "Wait a moment" How is this... Didnt I just... ??He has begun to reflect on whether he did not provide good hospitality, which caused Perelman, a boss who is said to have an eccentric personality, to have opinions. Chang Haonans mind was focused on the idea just now, and he didnt have the energy to explain too much. He just waved his hand: Several other people from the Steklov Institute of Mathematics will still attend the dinner. As for the two of us ?He glanced at Perelman, who was bowing his head in contemplation, and showed a mysterious smile: We are preparing to reveal how the world works. Solving a complex mathematical problem often takes months or even years. But most of the time is actually spent on calculation. In the past, we relied on pen and paper, but now we can certainly rely on supercomputing. However, the reason why mathematics cannot be equated with arithmetic is because there are still some really critical steps that cannot be solved by calculation alone. Need to rely on inspiration. Now, Chang Haonan and Perelman have undoubtedly caught the tail of inspiration. ???Of course its impossible to waste time for a mere dinner party. ?Tang Lintian was stunned. ?At first glance, this word seems to be boundless. ??If it came from another person, he would definitely think that he was making a fool of himself. But Chang Haonan ?In Tang Lintians impression, the other party never seemed to exaggerate his research Even in the proposal reports that generally require value sublimation, this has not been done before. ?Of course, Chang Haonans proposal report will also be valuable. But the problem is that the value of others is just casual. And his value can really be realized... ?Thinking of this, Tang Lintian took a deep breath and nodded. "good." ??The lights in Chang Haonan''s office stayed on like this all night. ?Perelman''s absence from the dinner that day also triggered a series of speculations. ??Although Beijing Airlines publicly stated that the professor was unwell and was unable to attend, the rumors will not care what explanation you give. Almost that night, rumors spread that "Professor Perelman was dissatisfied with the exaggerated atmosphere of Chinese academic circles and angrily refused to attend the dinner." What happened next surprised almost everyone The next day, the visiting team from the Steklov Institute of Mathematics ended their trip early and returned to Moscow! ?At this time, in the eyes of the ignorant people, and even some people who participated in the report meeting and banquet that day, it was simply a real deal. For a time, the media who caught the gossip clues pounced on the news like sharks smelling blood. After sending Perelman and his team away and dealing with a group of media who couldn''t get rid of him, Tang Lincai went to the computer room of the computing center and found Chang Haonan. The sparks generated by the collision of ideas in one night are enough to set the entire mathematical world on fire. The parts that need inspiration are almost there. Only some complicated but relatively low-tech jobs remain. What Chang Haonan is doing at this time is to import the calculation program into the supercomputer The method he and Perelman finally decided on was to use surgical Ricci flow. This process is quite special. It requires first cutting off a "neck" area in the manifold and then "gluing" it to the "top". Thereby expanding the solution interval. The key to the problem is to find a suitable set of "necks" and "tops" and choose the correct canonical neighborhood radius. This process can of course also be done using pen and paper. But for mathematicians who are about to enter the 21st century. You can, but its not necessary. The computer can do all the work for you. ?Especially for Chang Haonan who is not ready to devote all his energy to this, it is the best way to "be lazy". My Professor Chang, you have given me more strength this time... ??Tang Lintian sat down on the chair opposite Chang Haonan. Probably because he was anxious to get angry, and the computer room was relatively hot, his face turned red as if he had just been drunk, so he took off his cotton hat and used his ear protection as a fan to fan himself: "The leaders of several brother universities have called me to ask me what''s going on. The China Youth Daily had made an appointment to write a special report on this matter, but it turned out that you two disappeared last night. This morning, they The leaders also came over to ask questions and said that even the page had been reserved..." After pouring out his bitterness, Tang Lintian turned his head and glanced secretly at the opposite side. It turned out that Chang Haonan had a hard-hearted look and did not react at all to his complaints. Failing miserably, he had no choice but to cough twice, take off his cotton-padded clothes, and sit up straight: Professor Chang, to be honest, although I can still resist the pressure this time, but you can at least reveal what you are holding back this time, so I have something to think about, right? ? After hearing what he said, Chang Haonan finally raised his head and breathed a sigh of relief: There are two things. First, I plan to use the three-dimensional sphere theorem derived yesterday to optimize the previously developed manifold learning algorithm and extend the application scope of the algorithm from high-dimensional space to three-dimensional and below. "Well" ??Tang Lintian stopped moving his hands, and his face showed a bit of confusion: Can youexplain? ??He is also a well-known expert in the aviation field, but at this time he feels as if he has never gone to school. ??Although he knew every word the other person said, he didn''t understand it when put together. It means that the data obtained in the three-dimensional space can be further reduced in dimensionality and then handed over to the computer for processing. ?Chang Haonan was already busy with important things at this time, so he explained patiently: Specifically, Professor Mengs hyperspectral remote sensing data feature extraction project can basically be concluded. "ah?" ?Tang Lintian was shocked: End...end the question? After being stunned for a few seconds, he continued: But that project has just been applied for, and it hasnt even been officially launched yet? Completing the project before starting the project is absolutely unprecedented, and Im afraid it will be difficult to do it again. Of course, this refers to other comers. ?Chang Haonan raised his hand to straighten his somewhat messy hair: The main reason is that I suddenly got the inspiration yesterday. I never expected it to happen so quickly. Fortunately, Tang Lintian was used to Chang Haonan''s unfavorable operation, and he quickly convinced himself to calm down. Then now He pointed to the computer room next door where the fan was roaring: Are you testing the algorithm you just mentioned? Speaking of this, Tang Lintian suddenly reacted: No, this matter has nothing to do with Perelman, right? Ohthese are the second things. Chang Haonan leaned back on the chair, waved his hands gently, and said casually: We are trying...no, we are trying to conquer the Poincar conjecture. ??The hat in Tang Lintian''s hand fell to the ground. (End of this chapter) Chapter 822 Test with early warning aircraft Chapter 822 Testing with an early warning aircraft ?In the next half hour or so, Tang Lintian felt dizzy. Floating. The feet are off the ground. ?Given the level of Mathematics major at Beijing Hang University, being able to invite a scholar of Perelmans level to give a report is already something worthy of celebration. In the end, Chang Haonan turned around and gave him such a big job. Its basically equivalent to a person worrying about having enough to eat one second, and then suddenly learning that he is the son of the worlds richest man the next second. ?This description is no exaggeration. ?In the current situation, if Chang Haonan is willing, Tang Lintian probably won''t care about trivial issues such as seniority... In short, when the latter woke up again, he found himself in Chang Haonan''s office. I dont remember what happened in the middle at all. Professor Chang. When Tang Lintian was speaking, he still felt his heart beating very hard, so he slowed down a bit in the middle of speaking: "This result...about...when..." As a man in his fifties, he has deeply felt the mark left by the passage of time on his body. ?But at this moment, if there could be a fast-forward button in life, Tang Lintian would press it without hesitation. I really cant wait ?Poincars conjecture Even if he is not a mathematics professor, he still knows this famous name. It is as famous as Goldbach''s conjecture and Fermat''s last theorem, a problem that has troubled mathematicians around the world for more than a century (actually the Poincar conjecture is of higher significance, but those two are really out of the circle). ??If it is solved on Beijing Airlines... Dont say anything else. ??The lecture theater where the lecture meeting was held yesterday can be directly promoted to a sacred place of mathematics Dont ask, just ask. The inspiration for solving the Poincar conjecture came from this place. As the current principal of Jinghang University, Tang Lintian is definitely honored. Its hard to say. Chang Haonan shook his head and replied: In mathematics, the most time-consuming part is often not necessarily the most difficult part. He understands Tang Lintian''s mood, but since the current theoretical level of LV3 is not enough to start the project, the Poincar conjecture has not been solved directly through the system, so it is difficult to give a clear timetable. All we can say is that in terms of supercomputing performance at the turn of the century, his own expectation was 3-4 months. Yes, also... ??Although he didn''t hear the answer he wanted, Tang Lintian still nodded repeatedly: Studying a problem that has not been solved for a century will definitely not be simple... ?After this topic came to an end, the office fell into silence again. Tang Lintian, who was still not overly excited, was still a little unable to sit still, but in front of Chang Haonan, he couldn''t jump up and down to vent. ?So after sitting uneasily for a few minutes, he finally lost his temper and stood up: Ill go find Professor Meng and talk about your project. ?Chang Haonan was just about to say that just making a phone call would be enough, why bother making a special trip. ??As a result, when I looked up, I saw Tang Lintians back almost jumping out of the door... "well" He sighed, put down the hand he was about to pick up the phone receiver, and shook his head with a smile. ?About 40 minutes later, Tang Lintian, who seemed to have returned to normal, finally returned to Chang Haonan''s office with Meng Zhenyuan. ??And after hearing that Chang Haonan had found a solution to his problem, Meng Zhenyuan''s reaction... ??Its basically not much different from Tang Lintian just now. ?This time, Chang Haonan, who had gained experience, did not disturb the two people opposite him, and just kept busy with the matter at hand. Sure enough, after a while, Meng Zhenyuan finally came back to his senses. "No, Mr. Chang, this...is it true?" Chang Haonan was immediately amused: Of course. He looked away from the computer screen and looked at the two people sitting on the sofa: Can I still lie to you? No, no, noof course I believe Professor Chang ?Meng Zhenyuan rubbed his hands. Obviously, although he has recovered from the initial shock, his language and thinking abilities have still suffered some impacts: Oh my God ?Meng Zhenyuan sighed again, then looked at Chang Haonan and said sincerely: Mr. Chang, since you have solved this problem, lets see...are there any equipment or equipment that need to be purchased? I can use the funds from this project to help you solve it! ?This is indeed a minor trouble ??The project in Meng Zhenyuan''s hands is a vertical project, and the management of funds is much stricter than that of horizontal projects. ?At least it is impossible to be like the agreement signed by Chang Haonan and the Huaxia Petroleum Pipeline Bureau. If the project is completed ahead of schedule, the funds will be paid in one line at the end of the project in the name of personnel expense subsidies. For vertical projects, if the funds you apply for are not used up, not only will you not get an award, you may even be rejected. The logic is also very simple - why did you apply for so much if you can''t spend it all? ?But even so, when applying for a project, no one will really think about how to spend the money first, and then get the money according to the planned amount. But we must get as much funding as possible and then find a place to spend it. So, at the end of each year, and when the project is about to be completed, there will be a sudden expenditure of money Of course, this is definitely a happy trouble. For most research groups, the trouble is not enough money, rather than not being able to spend it all... ?However, the problems Meng Zhenyuan is facing now clearly exceed all past experiences. ??Its not that he has some money left over and needs to be spent, but hes about to finish the question without spending even a penny. Hmmhow many? Chang Haonan was not polite, after all, he was the one who solved the problem. Three years, 200,000 per year. ?Meng Zhenyuan replied. That doesnt seem to be enough to do anything ?Chang Haonan held his forehead with one hand. In fact, a project with a funding of 600,000 yuan was definitely considered a big project in 2000. Its just There is no harm without contrast. Finally, he decided to skip the topic: Forget it, lets keep it for now. Anyway, the completion of the question will have to wait until the end of this year at the earliest. I will contact you when I have any money that needs to be spent. The issue of funding can only be regarded as a digression. The focus is still on the project itself. Next, Chang Haonan spent about two hours introducing his improved manifold learning algorithm to Meng Zhenyuan and Tang Lintian, as well as the idea of ??using this algorithm to extract and analyze multi-band spectral data. To put it simply, in an era when sensors are highly developed, the problem people face is not too little data but too much data. So much so that its impossible to tell which ones are useful and which ones are useless. Manifold learning technology can accurately extract the specific data required for analysis from a radar imaging map filled with information in trillions or even gigabytes. ?Of course, this is just one of many application scenarios. ??If the computer performance is strong, advanced functions such as face recognition and image search can also be implemented. Sounds veryperfect. After Chang Haonans introduction, Meng Zhenyuan felt that he was almost convinced by this exquisite method: However, there is still a problem... Our satellite will not be launched for more than a month...Although I also think this idea is feasible, it still needs to be tested..." In the final analysis, the formers movement was a bit too fast. Hmm indeed. Chang Haonan nodded: It may take three months for the satellite to transmit the data back, and if the geological information needs to be verified, we have to wait for the results of on-site exploration to come out, which is really inefficient..." He believed that the algorithm he developed would be correct. However, in order to optimize the effect well enough, enough samples are still needed for comparison and parameter adjustment. ?With one satellite, Ziyuan-201, and dozens of people from the Exploration and Development Research Institute, it may be difficult to meet the efficiency requirements. Anyway, as long as its telemetry data, how about letting the two Learjet Ss from the Academy of Sciences join in? Tang Lintian next to him suggested. In the mid-1980s, China imported two Learjet S/II electronic reconnaissance aircraft from the United States, which were later named under the name of the Academy of Sciences. In addition to military use, it will also perform some scientific surveying and mapping tasks. Chang Haonan waved his hand: The shortcoming of this area is the inefficiency of on-site survey, even if there are two more aircraft... At this point, his eyes suddenly lit up. At the end of the day, the function of the manifold learning algorithm is feature extraction. Then you dont have to limit your attention to geological information. Ground reconnaissance, battlefield surveillance, target identification It is also true. ??And because targets such as buildings and vehicles are controllable, it can even save the effort of data verification. At this moment, an excellent test platform suddenly flashed in his mind The Air Police 200 has already made its first flight. ??Although the centimeter-wave radar has limited accuracy when detecting the ground and cannot be compared with serious synthetic aperture radar, considering the huge antenna area and power, if it is only used for technical verification, it should not be a big problem. Moreover, it kills two birds with one stone. In addition to verifying hyperspectral remote sensing equipment, we are also making technical preparations for China''s future battlefield command aircraft, comprehensive reconnaissance aircraft, or strategic reconnaissance satellites! (End of this chapter) Chapter 823 Aviation equipment test base Chapter 823 Aviation Equipment Test Base ?After sending Tang Lintian and Meng Zhenyuan away, Chang Haonan immediately contacted Ding Gaoheng and told him his idea of ??"borrowing" Air Police 200 for target feature recognition and screening experiments. The latter was silent for a while after listening: Xiao Chang, have you forgotten that you are still the deputy chief engineer of the Air Police 200 Project? With one sentence, there was an eerie silence on both sides of the phone. ?Chang Haonan scratched his head. It is true that I forgot. After all, the scope of duties of the position of deputy chief designer depends entirely on the specific work he is responsible for, and there is a huge gap between the upper and lower limits. And Chang Haonan happens to be the kind of person who is not responsible for any specific work At the beginning, what I said was to help solve some difficult problems. But the entire Air Police 200 project highlights one logical and most troublesome part, namely the overall design and flight safety, which were overcome by Chang Haonan when the project was established. So we didnt encounter any difficult problems at all. Naturally, it was not his turn as the deputy chief engineer to play any role. Havent even signed a word. ??Coming back and forth, and being so busy in the past few years, I have long forgotten about it... And its not just him. ??Probably few people except Ding Gaoheng still remember it. Otherwise, there should have been at least a few more procedures when he took up the post at the Aerospace Power Group. ?However, now that this level of status is in place, the matter has changed from "parallel cooperation between two military-industrial groups under the Science and Technology Commission system" to an internal matter of the project. As long as the two chief engineers Liang Shaoxiu and Wang Xiaomo agree. Taking into account Chang Haonan''s working relationship with them, and it does not involve any hardware modification... Basically just say hello. It can save a lot of trouble. "Then...I''ll contact Liang Gong and Mr. Wang directly." After finishing speaking, Chang Haonan was a little embarrassed and prepared to hang up the phone. Dante Gaoheng still has something to say: By the way, Xiao Chang. He stopped Chang Haonans attempt to hang up the phone: After I went to work today, I heard that there seems to be another wave of public opinion in your school? ?Beijing Hang University is a university affiliated to the Science and Technology Commission. In terms of terms of reference, Ding Gaoheng can naturally manage it. It''s just that he paid special attention to such trivial matters today simply because he was worried about having anything to do with Chang Haonan. Ah...its not a big deal. Chang Haonan replied in a relaxed tone: Yesterday, a foreign mathematician came to visit. After the two of us talked about academic issues all night, we got some inspiration, so we went back early today to continue our research. Outsiders dont know the ins and outs of things, and its normal for them to make wild guesses about some unreliable content. ??Although Ding Gaoheng has been in a high position for many years, he is not out of touch with the masses. At least he is very clear about the ethics of the media. ?So after hearing Chang Haonans explanation, he also guessed what was going on: "That''s good. As for public opinion matters, you let Tang Lintian handle it. You can come up with ideas from behind, but except for interviews arranged by the organization, don''t express your position directly." ?Although the formers performance in this regard has been very reassuring in the past, Ding Gaoheng still specifically gave instructions. After finishing speaking, he seemed still a little worried: Forget it, I will hold a special meeting for several universities under the Science and Technology Commission system later to formulate a method to deal with sudden public opinions..." After hanging up the phone, Chang Haonan immediately prepared to contact Liang Shaoxiu and Wang Xiaomo. ?However, when he was about to dial the number, he realized that as the deputy chief engineer of the Air Police 200 project, he did not know where the two chief engineers were now. The office is definitely a no-brainer. ?Its almost dinner time now, and the nature of their work means they cant sit in the office even if they work overtime. As for mobile phones The last time the three of them met was almost two years ago. ?At that time, only Chang Haonan, who was relatively wealthy, bought one. So he doesnt know the mobile phone numbers of the other two people either "well" He shook his head with a somewhat self-deprecating smile: I, the deputy chief engineer, serve as a... pure negative teaching material... ? In the end, there was really no other way, so I contacted the Aviation Industry Group step by step and learned that the two of them were now in Liao Province doing basic performance testing of the Air Police 200. Three days later. Liao Province, Xingcheng Base. ?This used to be a station belonging to the Naval Flying Academy, but the frequency of use was very low. Only occasionally a JH-7 regiment came to station for training. Considering the relatively remote geographical environment and the location advantage of being close to the Bohai Bay, after Wu Yifan returned the information about the Nitka aircraft carrier training base to China, it was selected as the future Chinese carrier aviation training base. Later I felt that it would be a waste to just put an aircraft carrier training facility in such a large area. So it was simply planned to become an exclusive aviation equipment test area for Hainan Airlines. Its a bit like Area 51. ?Of course, although no one said it clearly, it must be a bit like the Air Force Reform Base. Hence, the Air Police 200, as an early warning aircraft funded by the Navy, became the first model to enjoy the high-standard treatment here. Mr. Chang, we havent seen each other for a while. As soon as Chang Haonan walked out of the cabin of Challenger 601, Wang Xiaomo and Liang Shaoxiu came to the gangway and shook hands with him respectively: I thought you had forgotten your title as deputy chief engineer ??As the person in charge of the Air Police 200 project, Wang Xiaomo certainly remembered that he also had a deputy chief engineer who had barely appeared. "I" Chang Haonan thought to himself that this article should be revealed as soon as possible, and at the same time quietly changed the subject: Yeah, long time no see. After speaking, he tightened his coat to resist the **** sea wind around him: Im ashamed. As the deputy chief engineer, I have only done some minor work. Now I have a project at hand, and I have to trouble you... Hey, dont say that. It was you who came up with the overall design of this early warning aircraft. ?Wang Xiaomo slowed down a little and replied: If you hadnt come up with this T-shaped antenna solution, we would have just used a balance beam solution like the Saab 2000 ?At this time, Liang Shaoxiu, who had been silent just now, was also nodding beside him: "And what''s more important is the platform itself. A while ago, before we arrived in Liao Province, a test flight in southern Shaanxi encountered severe icing weather. Fortunately, the de-icing system worked in time, otherwise it would have been really bad. Something might happen." There was a little fear in his tone. While talking, Chang Haonan and his party walked into the large hangar where Air Police 200 was parked in the distance Since the main equipment for a long time has been first- and second-generation fighter jets, the Chinese Aviation Force has never paid enough attention to aircraft ground protection in the past. After all, there is really nothing to coddle with something like the J-6 and J-7. As for what to do in rainy and snowy weather... Sorry, these aircraft are not designed to operate in bad weather. No need to take off ??However, as the third-generation fighter jets and a number of special aircraft are successively equipped and tested, it will definitely not be possible to continue to be so rough. This large-scale constant-temperature hangar is the first attempt of naval aviation. As soon as he entered the building, what caught Chang Haonans attention the most was not even the early warning aircraft carrying a towering antenna. Rather, it is a large half-circle of control consoles around the hangar. It doesnt feel like youve entered a hangar, but rather like a workshop ?Perhaps noticing Chang Haonans eyes wandering around, Wang Xiaomo introduced with a smile: This hangar is very powerful. The Navy specifically considered the convenience of technical verification work and spent a lot of money to install a lot of maintenance and auxiliary equipment. Some minor parts replacements and software upgrades can be carried out here after being shipped over, without having to fly the aircraft back to the factory. Good guy Chang Haonan had seen a similar fully functional hangar before his rebirth, but seeing such a thing in 2000 still made him marvel: That is indeed very convenient. ?Chang Haonan nodded with satisfaction. He originally thought that the plane would have to return to Nanzheng to complete the upgrades he needed. But now it seems that a round of trouble can be avoided. Thats why we moved the plane from Yanliang to this side in advance. Wang Xiaomo said as he opened the cabin door and took the other two people into the interior of the cabin, which was already filled with a row of display consoles: On the one hand, it is to test the adaptability of the aircraft in the coastal environment, and on the other hand, it is also to test the working effect of the radar. As an incompetent deputy chief engineer, it was actually the first time for Chang Haonan to enter this aircraft, or the first time to enter the interior of an early warning aircraft. So it still feels a bit fresh. Wang Xiaomo has long been used to seeing what it looks like when someone gets on an early warning aircraft for the first time, so he very skillfully gave Chang Haonan a brief introduction to the specific functions of each piece of equipment. Chang Haonan sat next to him and listened quietly. It wasnt until the former talked about the core multi-functional radar display that he interrupted him: Mr. Wang, lets talk about radar. Chang Haonan pointed to the top of his head: Can our antenna array be made larger? ? He ??remembered that when he first talked to Wang Xiaomo about the domestic early warning aircraft, the other party seemed to have said that the size of the antenna was about 8 meters * 0.6 meters. As far as the size of the Yun8 platform is concerned, it is certainly large enough. But if you want to use the Tu 214 or the domestically produced C909 as the platform, it may be able to accommodate a larger one. (End of this chapter) Chapter 824 One of the anti-aircraft carrier technologies (new January, please vote for me) Chapter 824: Anti-aircraft carrier technology...1 (New January, please vote for me) "Can." ?Wang Xiaomo replied decisively: "I should have mentioned to you before that the 14th Institute was developing a carrier-based phased array radar a few years ago. The array size was 4 meters * 4 meters. At that time, it was limited by the structural processing and electromechanical requirements of the large-size box. The coupling issue has never been resolved. Chang Haonan certainly knew that the radar the other party was talking about was Type 346. The two of them talked about each other when they first met. Thats right. He nodded: "I remember that after the release of TORC Multiphysics software, when our Torch Group first started to take over the computing business, I specifically asked the comrades in charge of this area, saying that if there were project requests from the 14th Institute of Electrical Engineering, they could be implemented first, but then it seemed Never received it. Because the 14th Institute later organized a research team, and even sent people to study with you, and finally solved the problem of front design. Wang Xiaomo explained: "Now the first prototype of the 346 phased array radar has been installed on the Bi Sheng and is being tested. No structural problems have been found so far, which shows that we can still handle the 16 square meter array. " Currently, the yield rate of gallium arsenide in our second-generation T/R components cannot be improved, so the second array has been built intermittently for more than a year, and it is estimated that it will not be completed until the second half of this year. He has mentioned before that if stable import channels can be found or domestic production can be achieved, then 14 institutes hope to use gallium arsenide-bipolar silicon hybrid components on the 346 radar. It now seems that localization has been achieved, but not fully achieved. ?But there is no need to rush this matter. As long as there are continuous orders, the update and iteration of production technology is a natural process. It''s like building a phased array antenna array. When planning the Air Police 200 a few years ago, Wang Xiaomo also said that it needed to be made by workers using milling cutters. As a result, not long after, the Torch-C.B. Ferrari Group was established, and the first product launched, MS45T, solved the urgent need. ??When Chang Haonan looked at the financial statements at the end of last year, he found that Dianke Group had quietly purchased nearly three-digit purchases... As for the second four-axis linkage model, Dianke is also the first launch user. It is basically a strategic partnership. After chatting for a while about Air Police 200, Chang Haonan saw that the atmosphere was about the same, so he told the other two about the specific tasks of his trip. Actually, I just wanted to ask. As a radar expert, Wang Xiaomo is obviously also very interested in this topic: "The radar target recognition you are talking about...should not be as simple as distinguishing between ourselves and the enemy, right?" Of course. Chang Haonan said as he took out the prepared information from his briefcase and handed it over: Actually, its not just radar. My phased goal is to specifically determine the nature of the target by extracting and analyzing the signal characteristics captured by multiple sensors. For example, if a radar detects an echo with a speed of tens of kilometers per hour, is it a flock of birds or a low-speed flying helicopter? Or if a very blurry image is captured in the visible light band, is it possible that it is a house or a simple terrain color block? Or, the sonar detects a noise. Is it a creature, an ocean background, or a submarine? Wait a minute, wait a minute Listening to Chang Haonan talking further and further away, Wang Xiaomo quickly stretched out his hand to stop him. First of all, he was worried that if he continued to listen, Air Police 200 would change from Xiao Tiantian to Mrs. Niu in his heart. Secondly, he suddenly thought of a possibility. A magical possibility: If this is the case, is it possible to use radar to emit electromagnetic waves to image the target, and then use this to determine the target, such as the specific model of the aircraft, or whether the ground target is a tank or a truck? ?This is definitely a feature that aviation forces all over the world dream of. ?Although in theory, identification of friend or foe can be accomplished by IFF antenna or data link. But in actual operation, IFF has a short range due to its high power and frequency. ?Especially under abnormal weather conditions, to put it exaggeratedly, the range of action is not as good as the killing radius of some anti-aircraft missiles with larger warheads. And data link At least in 2000, even the US military cannot guarantee that all aircraft in the theater will be effectively connected to LINK16. Even if terminals are installed on the hardware, the data transmission bandwidth will explode. So, there is actually no particularly reliable way to determine whether a target is an enemy or a friend beyond visual distance. But if the technology provided by Chang Haonan can use airborne radar to distinguish the shape of the target. ?That would be different You see an F16, dont you know which side it is from? This idea made Chang Haonan''s eyes light up. Its just a pity. ?After thinking for a moment, he shook his head: At least not yet. "With the current technology, the resolution of centimeter wave and decimeter wave radar is really not enough. At most, it can tell whether the target is a car or a house. The accuracy of millimeter wave radar is enough, but the detection range is not enough. It is almost the same as the target. The visual acuity is almost the same. If synthetic aperture technology is used, the imaging time will be too long and high-speed targets cannot be detected..." "Um" Although his idea was rejected, Wang Xiaomo was not depressed. After all, Chang Haonan only said that it is not possible now, but did not say that it is not possible in principle. Indicates that the future is promising. At this time, an accompanying naval officer suddenly interjected: It sounds like...this technology is not suitable for dealing with vehicles or aircraft, but is suitable for searching for sea targets..." "It''s hard to say there is any big difference between a J-8 and an F16 in the eyes of radar, but an aircraft carrier and an oil tanker, or other large ships... Although the RCS may be similar, because of the existence of a straight deck , the difference in signal characteristics should be quite obvious..." ! ! ! Before he finished speaking, Chang Haonan, Wang Xiaomo and Liang Shaoxiu turned their heads almost at the same time and looked at the naval lieutenant colonel. The latter was looked at directly by the three people, and suddenly felt a little numb, and his momentum immediately weakened: Thats what, Ill just say it casually... "No." Chang Haonan raised his hand: This is not something you say casually. This is not a casual statement. He and Wang Xiaomo said in unison. It''s just that the two people are thinking about different things at this time. ? Wang Xiaomo believes that this technology may be more suitable for use on anti-submarine/patrol aircraft, for tracking and monitoring enemy fleets at a safe distance, and for finding the signal characteristics of enclosures, snorkels or periscopes in complex sea areas. And Chang Haonans idea is Among the many rumors about the specific guidance methods of anti-ship ballistic missiles in previous generations, there seems to be a similar technical route. Even among anti-ship missiles many years ago, "picking the one with the largest RCS and hitting it" has become the first principle in the target search process. ?However, with the continuous development of low RCS technology on ships and the equipment of various radar reflection decoys, this simple and crude method has become somewhat outdated. Compared with missing targets, the more troublesome problem is that some civilian ships, such as fishing boats, although they may not be large in size, often have RCS that far exceeds the displacement standard due to their appearance, making it easy for anti-ship missiles to hit near the target. Even the melon-eating masses on the route. Ordinary anti-ship missiles that win by quantity are not bad. At most, if you hit a few more missiles, or if you originally intended to hit the aircraft carrier but ended up hitting the destroyer next to it, it would not be a loss. ??However, anti-ship ballistic missiles and even anti-ship hypersonic missiles, each of which is extremely expensive, obviously cannot withstand such consumption. So, a way is needed to distinguish high-value targets from the field of view. ??As the officer just said, straight-deck aircraft carriers and amphibious assault ships, as the two most valuable targets, happen to have very special signal characteristics... (End of this chapter) Chapter 825 Test, target feature extraction Chapter 825 Testing, target feature extraction ?Of course, using ballistic missiles to counter aircraft carriers is definitely not that simple. It can be solved by developing a target classification algorithm. First of all, the prerequisite for target classification is to detect the target. ??But how to enable ballistic missiles to overcome black obstacles and use radar normally during re-entry into the atmosphere is a huge problem... ? ? Reducing the reentry speed to less than 5 times the speed of sound can avoid the occurrence of black barriers from the source. However, low-speed ballistic targets are the easiest targets for the air defense system, which defeats the original purpose of using ballistic missiles to fight ships. ??If you wait until you have passed the black barrier area before turning on the radar, the reaction time will be too short and it will not be enough for the missile to adjust its attitude. Secondly, to find the location of the aircraft carrier battle group in the vast ocean before striking, a complete global ocean monitoring system is needed. At this moment, China has just launched its first land-based remote sensing satellite. The second and third satellites are Ziyu-201 and 02 that will be launched soon ??This is also the original reason why Chang Haonan rushed out to conduct technical testing before the Spring Festival. As for ocean remote sensing satellites Sorry, not even one. In short, at least in 2000, we could only think about developing anti-ship ballistic missiles ?Most people wouldnt even dare to think about it. On the contrary, Wang Xiaomos idea is more realistic. ?In particular, Chang Haonan has previously considered designing an anti-submarine patrol aircraft based on the C808 platform whose comfort and range exceed or are no less than that of the P3C. ?In the current context where the main tone of the confrontation is to fight without defeat, the importance of this equipment is not less important than conventional main battle equipment such as tactical aircraft, if not more important. ?Thinking of this, Chang Haonan immediately turned to look at Liang Shaoxiu, who was a little distracted from radar-related topics: Gong Liang, our Air Police 200 has not done any hardware shielding for low-altitude targets, right? Since the main function of early warning aircraft when developing is air detection, there are many models that directly limit the longitudinal depression angle of electromagnetic waves on the hardware, in order to solve the interference caused by ground echoes in the simplest and crudest way. Whats more, a shielding layer will be designed under the antenna to directly block the downward electromagnetic waves at large depression angles. ?Chang Haonan definitely didnt have this thing when he made the plan, but there is no guarantee that it will be added in the past two years. No, I just limited the downward angle in the radar background program Liang Shaoxiu replied: And because it is still a prototype, this restriction can be lifted through special commands. If you have a new target recognition program, Mr. Chang, just modify the software part here. Since pilots and ground crew are not professional aircraft designers, when the mass-produced aircraft is delivered to them, in order to prevent anyone from messing with it, the software programs are locked, leaving only some preset input and output ports. . However, prototypes or technical verification opportunities have a status similar to "developer mode", allowing engineers to make modifications more conveniently. Dont worry, there is no need to make major changes to the current procedures. ?Chang Haonan looked back at the staff who followed him. The latter understood immediately and took over a password box that he carried with him. After opening it, there are several hard drives inside. I have encapsulated the target feature extraction and analysis functions into a module, which can be plugged into the existing data processing code. Having said that, the operating computer on the early warning aircraft is not a home computer after all. Just make an installation file in .msi format and wait for it to be completed automatically. ??WindowsXP, which was widely used in military terminals in later generations, was still a trendy thing that could only be installed on the latest PCs. It has extremely high hardware requirements and is also unstable. Its almost the same as win11 in 2023. And it hasnt been officially released yet. So, it took Chang Haonan nearly a week to completely complete the program update and necessary ground testing. It even took longer than it took him to write the program before. ?Of course, Liang Shaoxiu and the others are not idle these days either. Instead, he helped coordinate with the naval leaders and borrowed a batch of false targets for training. Its not something fancy like a self-propelled decoy. Instead, it is a simple method to install different styles of models or corner reflectors on the buoys. Used to cost-effectively simulate targets of various sizes from sampans to destroyers in non-live-fire training. It is a method that the army had no other solution to during the period of endurance in the early years. The advantage is that it can be deployed using a transport boat or tugboat, and it can be recycled without damage after use. But later I found out that the effect was actually quite good. ?However, because it is a buoy, it cannot be deployed in places such as the high seas and oceans. It can only play a role in relatively shallow locations. The last day before New Years Eve. "Mr. Chang, comrades from the North Sea Fleet sent back a message saying that they have set up all the 35 preset false targets. In addition, the three warships 107, 110, and 519 that are training in the nearby waters will also cooperate with us. Real ship target, compared with the signal characteristics of the corner reflector. ?Liang Shaoxiu hung up the phone and said to Chang Haonan who was not far away. ??The latter was currently looking out of the floor-to-ceiling window of the tower, watching Air Police 200 drive from the apron onto the taxiway: Notify aircraft 20001 to prepare for takeoff. ??If it makes sense, then Chang Haonan, as the deputy chief designer, Liang Shaoxiu should be regarded as his leader in the Air Police 200 project. ??Its just that the content of this test has nothing directly to do with the early warning aircraft itself, and the two parties are closer to cooperation. The reason why it is carried out under the framework of Air Police 200 is simply for convenience. ?Moreover, Liang Shaoxiu has actually been learning from Chang Haonan since the time he solved the problem of ice on the wings of the Y-8 platform at the end of 1996. ?Like Lin Shikuan from Institute 601 back then, he was considered a half-disciple brought out by Chang Haonan. Hence the strange scene in front of us where the chief division reported the situation to the deputy chief division, and then the deputy chief division issued instructions to the chief division. A few minutes later, Air Marshal 200 rose into the sky from the end of the runway, dragging four lines of faint black smoke, and gradually disappeared from everyone''s sight. "Mr. Chang, Comrade Shaoxiu has complained to me a lot before, saying that the performance of the turboprop 6 is still a bit lagging behind..." Wang Xiaomo looked at the black wake that had not completely dissipated in mid-air, and said to Chang Haonan next to him: I heard that when your aviation power group was established last year, you mentioned a development plan for a turboprop engine? Obviously, this is implying...or indicating that we want a turboprop engine with better performance. In other words, a flying platform with better performance. ??If Liang Shaoxiu had said this, it would have been difficult to determine the balance between suggestions and dissatisfaction. But Wang Xiaomo has nothing to do with the aviation system, so he has no worries in this regard. Indeed there is. Chang Haonan nodded: But the design power of that machine is only 1,600kw. It is planned to be used for 10-ton helicopters or 20-ton turboprops like the Y-7, which is not the same level. As for the 4,000kW-level turboprops...Im not talking about those imaginary ones. They really dont have a high priority at the moment. We actually have R&D capabilities here, but the number of technical personnel is still too small, and we cant take care of too many models at the same time. We can only work on the most urgently needed ones first When the Air Police 200 landed back, it was almost three hours later. ?According to Chang Haonan''s test requirements, the aircraft must conduct four rounds of searches for targets from different angles, that is, two zigzag routes that are generally perpendicular to each other. ??For the Air Police 200, which has a somewhat limited range, this is even the longest flight since the first flight of the prototype... ?While the ground crew rushed over to perform maintenance on the aircraft, the engineer on board had also taken down the recorded radar data and handed it to Chang Haonan. It is naturally impossible for supercomputing to be used in Xingcheng Base. Fortunately, if you just want to check the results or simply adjust parameters, you can use an ordinary computer. But if the algorithm needs to be improved later, we have to go back to the capital and do it again. We marked targets 1-39 in the order in which we first completed the search. ??The radar operator responsible for following the test flight is a naval lieutenant colonel named Su Changyun. He is sitting behind Chang Haonan and Wang Xiaomo at this time, introducing the details of the flight just now: Originally, there were 35 false targets plus 3 ships, a total of 38, but we found an illegal fishing boat in the target waters, so there was one more. Then this fishing boat ended up... Although this matter had nothing to do with the test, Chang Haonan still couldn''t restrain his curiosity. We contacted the 110th Dalian Ship through the North Sea Fleet Command, and finally caught them and found out that they were a group of people stowaway. Okayits pretty good. Wang Xiaomo next to him showed a helpless smile: Being able to become the first combat result under the command of an early warning aircraft in the history of our country is, to a certain extent, recorded in history And it also provides us with the typical signal characteristics of a fishing boat. Chang Haonan added next to him: In the future, you can add it to the white list of anti-ship weapons, or at least set the aiming coefficient to the end to avoid accidental hits... ?Other people here naturally don''t know about Xiongfeng 3''s fishing boats, so they just assume that he is preparing for a rainy day. After a brief interlude, everyone returned their attention to the radar data. There are two sets of data in total, one is original and the other is processed by the recognition algorithm. In addition to being used for comparison, the difference between the two sets of data itself can also be used as a basis for judging the nature of the target - Since the radar display is not specially set, the result output to it is a dot. But in the background running log, the difference can be clearly seen. The most intuitive thing is that the latter has richer or clearer data levels than the former. Two targets 1 and 2, four directions, each with two sets of data. The first set was directly hidden in the sea clutter and was not seen. The second set was seen but very faint. It should be a simulated periscope..." "The RCS of numbers 3 to 16 are quite large, but it was revealed in the second set of data that they are completely different from the signal characteristics of the three targets 36, 37, and 38... Considering the difference in quantity, The dozen in front should be different large corner reflectors, and the last three should be the three real warships..." 17 and 18, there is almost no difference in the signal characteristics detected in the four directions. They should be small corner reflectors, used to simulate speed boats or patrol boats..." ?Every time Chang Haonan finished speaking, Su Changyun compared it with the "standard answer" sent by the fleet. In the end, except for the misjudgment of "reef" and "small boat", everything else was correct. ?For a first test, the results are pretty good After all, the radar and computer wont know what humans define as a target, its only responsible for finding the difference. As for the inductive analysis of signals with different characteristics, it needs to be calibrated slowly later. For example, the targets with characteristics A are large and medium-sized surface ships, the targets with characteristics B are ordinary bulk carriers, and the targets with characteristics C are container ships... In fact, this is the fundamental purpose of Chang Haonan running over for testing. Although the situation of early warning aircraft cannot be directly transferred to remote sensing satellites, the methods of feature extraction and selection of calibration anchor points are the same. Although its not perfect yet, it has great potential. After reading all the results, Wang Xiaomo came to a conclusion almost immediately: Especially in terms of decoy identification, it is almost accurate at a glance, but unfortunately the amount of storage and calculation required is too large, so it is not easy to put it on the radar of a fighter jet. Thats not necessarily the case. Chang Haonan was already adjusting parameters and calibration methods, but he still stopped what he was doing after hearing what the other party said: The main function of fighter radar is air search. The background is relatively clean and the target features are more monotonous. I can write a simplified version for use by 1473 and 1493 series radars..." ! ?Wang Xiaomo just said it casually, but he didn''t expect Chang Haonan to actually come up with a feasible plan. He stood up suddenly: Then Ill contact the 14th institute. It just so happens that these types of radars, oh, and 346, havent been finalized yet. We can take this opportunity to work together... (End of this chapter) Chapter 826 Measuring China Chapter 826 Measuring China ?Just like that, a month went round and round and passed quickly. This year''s Spring Festival, Chang Haonan went home without a job again. Basically, we will run between Xingcheng and Jinling to solve the problem of radar adaptation. ?However, for him, as long as the calibration problem can be solved, having one more radar and one less radar will not actually affect the workload. On the contrary, more application data can be obtained for iteration. ?Especially for those radars whose main functions are air-to-air radars, the same core programs can be used. The most we can do is to take into account the different bands and adjust the weight coefficients of several typical features. Of course, at his own insistence, the 14th Institute still installed a small switch for the new target recognition algorithm. Can be used at the pilot/operator''s discretion Although no negative effects of this new technology have been found in the current tests, anyone who has written a program knows that if there is no problem after testing 10,000 times, there is no guarantee that there will be no problems in the future. ??The story about a customer who went into a bar and ordered a fried rice and the bar exploded [Note 1], although it probably didnt exist in this era, Chang Haonan had heard of it. The business trip life of running back and forth lasted until the end of February. ?At a time when the media across the country and even most of the world are still paying attention to the series of impacts brought about by China''s formal accession to the WTO half a month ago. February 25, 2000. With almost no one paying attention, the first transmission remote sensing satellite that belongs entirely to China (ZiYi-1 is jointly used by my country and Brazil) was sent into space by the Long March 4B carrier rocket at the Jinyang Satellite Launch Center. . ?After experiencing a series of near misses such as the loss of satellite signals, on March 10, the first hyperspectral remote sensing data of Longyuan and surrounding areas was transmitted back to the Tanzhou Measurement and Control Station located in the northern suburbs of Beijing. Chang Haonan, Meng Zhenyuan, and several comrades from the National Space Administration have been waiting here for a long time. Mr. Luan, Mr. Chang, and Professor Meng, this is the first clear image taken by our Ziyu-201 satellite. In front of the large screen of the measurement and control center, Li Nianheng, chief engineer of the remote sensing mission, reported to the three people standing next to him. In addition to Chang Haonan and Meng Zhenyuan, the other person is Luan Wenjie, the director of the National Space Administration. Of course, since the National Space Administration and the System Engineering Department of the Commission of Science, Technology and Industry for National Defense belong to two brands and one team, Chang Haonan and Luan Wenjie are old acquaintances. Its just that I havent had much work contact in the past. This should be the image after multi-band fusion, right? Chang Haonan asked, looking at a huge black and white grayscale photo on the screen. Or strictly speaking, several photos overlapped together. From the photo, you can vaguely see the mountain ridges, water systems, cities and roads. In addition, there are some surface features. ?These are the data captured by hyperspectral sensors. Since the pure visible light band has extremely weak penetrating power, only the most superficial conditions can be seen. But the advantage is that it is very intuitive. Mountains are mountains, and water is water. As the detection band range increases, the amount of information that can be seen also increases. For example, forests, farmland, deserts or grasslands under the white snow. These cannot be directly distinguished in the visible light band. ??However, a large amount of multi-dimensional data is mixed together, which also makes it impossible for the human eye alone to distinguish the content in the data map. The image on the big screen now contains clearly visible multiple layers of information, and has obviously undergone some processing. Thats right, we followed the most advanced foreign technology this time and adopted the technology of transmission and processing at the same time, so that the results can be produced as soon as the image transmission is completed. Li Nianheng replied: Otherwise, the hyperspectral telemetry data is a unified map, and nothing can be seen with the naked eye. Actually, this is the information gap between the two parties. In principle, Meng Zhenyuans project will not officially start until the satellite is in orbit. It hasnt even been half a month so far. Therefore, the original intention of the space agency today is to let them visit the measurement and control center, get familiar with the basic situation, and then go back to start working on the project. Since it is a visit, it must be intuitive and understandable. Thats why I specially put this picture. In the end, Chang Haonan came here to work directly. Huaxia Petroleum has even sent out its exploration team in advance, waiting to receive specific exploration sites. So what he wants is obviously not to watch the fun: Then you should have preserved the original data? Of course, they are all kept in the server room. I can take you there at any time when you need them in the future. ?Li Nianheng said and pointed at his feet. Hearing this answer, Chang Haonan breathed a sigh of relief. His worst fears did not happen. ??If the data processing is done on a space-based computer rather than on the ground, then the trouble is a bit bigger. Because the extraction algorithm of manifold learning is completely different from the existing multi-band fusion algorithm, there is no way to reuse data that has been "contaminated" by the latter. He calmed down and said to Li Nianheng: "Let''s go now. Our algorithm framework has been set up and we need to use the original data for extraction." "good" ? Li Nianheng had already received instructions from Luan Wenjie. As long as it did not violate the principles and did not involve satellite orbit and attitude control, the entire measurement and control team was working around Chang Haonan. So he nodded almost subconsciously, and then prepared to take Chang Haonan to the server room. ?However, before he could finish saying the word "ok", his turning around stopped. After a few seconds, he slowly looked back. ?At this time, Luan Wenjie next to him had also set his sights on Chang Haonan and Meng Zhenyuan. Your algorithm has been... figured out? ?Li Nianheng''s brain was running rapidly, but after thinking about it, this sentence seemed to have only a literal meaning... but Ziyuan No. 2 has only been on the line for 15 days. Excluding the day when the signal was not found at the beginning. Only 14 days. Even our Measurement and Control Center has just received the first complete surveying and mapping results of northwest China. ??Then you two are here for the first time and dont even know which way the door of the measurement and control center opens. ??Have you figured out the algorithm for extracting and analyzing remote sensing data? Looking at the confused and confused eyes of the two people in front of him, Meng Zhenyuan took a step back calmly. Professor Chang did it, not us, it has nothing to do with me... ?Of course, he only said this in his heart and could not really say it out. Ahem Chang Haonan cleared his throat: In principle, we cant say its been done yet. The framework is just set up. Next, we need to compare it with the on-site exploration data, check the results, and then make some adjustments based on the actual situation. But Luan Wenjie and Li Nianheng both had expressions on their faces like "I''ve read so many books, you can''t fool me" ?The two things before and after cannot be compared at all, right? If building an algorithm framework is like building a house, then adjusting parameters and checking can only be regarded as decoration. Although it is also a necessary process before moving in, its importance and time required are obviously not at the same level as the former. Now that the land equivalent to mine has been granted to you, the building has already been erected. Absolutely outrageous. ?However, despite being shocked, the two of them still had reason. After calming down a little, he took Chang Haonan and Meng Zhenyuan to the computer room where the original data was stored. To ensure information security, using a laptop to physically connect to a server is definitely not allowed. Just make a copy of the data, and then you can do whatever you want. Fortunately, there is no shortage of supercomputer at the measurement and control center, so Chang Haonan does not even need to return to Beijing Airlines, but directly works on site. ?Compared with the radar echo data processed in previous tests, the amount of information contained in each hyperspectral data map is more than one order of magnitude, so it is impossible to obtain real-time processing like on an early warning aircraft. In fact, it took five hours to complete the first step of local embedded feature extraction. But the effect is also immediate. These places seem to be different from the results obtained from data fusion ?Li Nianheng held his laptop and approached him, comparing the pictures on the screen in front of Chang Haonan. ?Compared with the picture I saw in the hall before, there is already a lot more information. Its strange ?Li Nianheng pushed up the glasses on the bridge of his nose: Look here. ??He said and pointed to the position slightly above the picture. North of Longyuan, a land parcel in Mongolia Province. "This place should be an entire Alxa Desert, but the result after processing...not to mention comparing with other deserts, even within this area, the signal characteristics are all messy, and it feels like there is noise that has not been eliminated. " ?This is not a place where the West-East Gas Pipeline will pass, but satellite images were taken together. ?Chang Haonan followed Li Nianheng''s instructions and took a look. Thats really the case. Dont worry, we will need to do regularized matrix decomposition and concept decomposition later. After looking at it for a while, he decided to give up temporarily: This picture is only a semi-finished product at the moment, and it is only exported for comparison with the finished product. After all the data extraction is completed tomorrow, you should be able to see it more clearly. (End of this chapter) Chapter 827 penetrating the earths surface Chapter 827 Penetrating the Earths Surface Tanzhou, if you say it is the capital city, it is indeed the capital. But its actually a hundred kilometers away from Beijing Hang University. ? Even more than twenty years later, this place is still considered a place that has not been completely developed. With such a distance, it is definitely impossible for Chang Haonan and Meng Zhenyuan to go back at night and come back the next morning. ?So the two of them just spent the night at the measurement and control center. Comrades in the aerospace system do not distinguish between black and white when they are busy, so there is nothing else in this place, but there is no shortage of things like folding beds in empty rooms. Originally, I planned to finish the work the next day and then go back to wait for the results of the on-site exploration. However, the time taken for data extraction this time far exceeded Chang Haonan''s expectations. It will not be until the early morning of the third day that the concept decomposition will be completed. ?This shows that the "useful" information contained in that picture is far more than he had previously expected. Fortunately, this algorithm is still in its infancy, so its done here. ??The subsequent feature identification and selection cannot be done by computer because the data has not been checked yet Similar to previous applications in the radar field, the algorithm can only extract signal features with specific differences. As for the specific results corresponding to each feature. ?That requires someone to calibrate it, at least initially. After calibrating a sufficient number of times, you can make a judgment based solely on identifying the characteristics of the signal. Similar to how sonar uses voiceprint information to determine the model of a target submarine. Chang Haonan and others returned to the lobby of the Measurement and Control Center, stood in front of the screen, and looked up at the spectrum of remote sensing data after dimensionality reduction processing by the manifold learning algorithm. ??There are more than one anomalies found by Li Nianheng on this picture. So it should not be an occasional bug. But its not available everywhere. So its not like a simple noise interference. I think, first of all, we should figure out which sensor captured these strange data. Chang Haonan first broke the silence: It seems that in the past, these data should have been directly blocked as interference, but after using the new feature extraction method, it was exposed. ?Li Nianheng nodded, obviously very much in agreement with this opinion. So, he hired Ye Jianpei, the deputy chief engineer responsible for the design of the spaceborne detection system ?Although the detector itself is not entirely domestic, the overall design of the entire satellite was entirely completed by China. So everything is still under control. Im afraid raw data alone is not enough. After listening to Li Nianhengs description of the situation, Ye Jianpei thought for a moment, and then expressed his position cautiously: It would be better to have logs of the entire remote sensing data extraction process, so that the reverse inference would be more efficient. We previously performed the extraction operation on server 02, and the operation log should still be saved on it. Chang Haonan replied: Part of the dimensionality reduction process is a black box even for me, but if we just trace the source, it shouldnt have much impact. Ye Jianpei did not answer, just nodded, and then quickly walked to the server room with his two technicians. "It seems...you have to stay here for another night." ?Li Nianheng looked at the back of Ye Jianpei leaving in a hurry and said to Chang Haonan and Meng Zhenyuan next to him. It doesnt matter. Chang Haonan waved his hand: I also want to see where those abnormal signals come from. This is a question that Chang Haonan has never been exposed to before, including in his previous life, and it does make him a little curious. Mr. Chang, Mr. Chang? I dont know how long later, Chang Haonan, who was resting half-closed on his chair, suddenly heard someone calling his name next to him. ?He quickly opened his eyes and stood up, and draped the blanket that someone had covered him with on the back of the chair. ?Li Nianheng and Ye Jianpei are standing not far behind the chairs. The result is out? "right." Ye Jianpeiyan handed a document to Chang Haonan in a concise and concise manner: An L-band polarimetric interference synthetic aperture radar is part of the hyperspectral remote sensing equipment group we imported from France. "The function of this device when it was designed was to measure target elevation data, and to obtain detailed parameters of surface cover, such as forests, ice and snow, houses, etc. But now, it is clear that it also captured some things that we had not expected before. information." Chang Haonan took the file and looked at it, and found that it contained detailed data for this L-band radar. Even in the instructions provided by the French, there is no mention of other functions except the two above. Apparently, they dont know either. "Is it possible...that it''s resources buried underground?" ?At this time, Meng Zhenyuans thinking has already spread: Such as oil fields, coal mines or... When he said this, his eyes lit up. Obviously, if so many mines can be found domestically, it will definitely alleviate the urgent need for energy shortages in the past two years. Even if he only played a supporting role, he would probably be able to receive a special allowance. ?However, Meng Zhenyuan''s illusions were quickly shattered. Chang Haonan put one hand on his forehead and replied helplessly: "How is it possible... This is almost the 21st century. The depth of the mines that have not been discovered by humans until now is conservatively estimated to be more than a thousand meters. This is an electromagnetic wave, not a seismic wave. Even the L-band can only penetrate 20 to 50 meters at most. At this point, Chang Haonan''s voice suddenly stopped. As a decimeter-wave radar with a relatively long wavelength, L-band may indeed have a certain degree of ground penetration capability in theory. However, in the past, it was generally believed that the penetrating power of electromagnetic waves depended on the composition of the surface covering layer, so it was unstable and the resolution was average. Overall, it was difficult to obtain the desired effect. ??The very few ground-penetrating radars that have been put into use are also mainly in the longer P-band, using the stronger penetration of long waves to conduct some rough searches. For example, looking for shallow underground caves. But judging from the picture they just obtained. It is true that the penetrating power of electromagnetic waves is not stable. But the effect is not necessarily bad. ? ? It is more likely that there were not enough technical means in the past, and a lot of useful feature data was directly blocked as clutter. ?Thinking of this, Chang Haonan turned around and looked at the other three people: Is there such a possibility? ?He said and pointed to the big screen: Even if its the same topographic feature, there are still differences within it that we dont know about, or that couldnt be observed using remote sensing methods in the past? "you mean" ?This sentence is a bit convoluted, but as an expert in remote sensing technology, Li Nianheng quickly understood what Chang Haonan meant: "For example, deserts can be divided into rock deserts, gravel deserts, deserts and mud deserts. These four landform features are also different in our past remote sensing data. Do you think these four landform features can be further subdivided? " Thats right. Chang Haonan affirmed. ?At this time, Meng Zhenyuan next to him also interjected: Then we can only ask the comrades from the Exploration Institute to take samples on site and then conduct detailed analysis. There was obvious excitement in his tone. ??Although he did not find the mine as he just thought, if Chang Haonan''s guess is true, then... ?Well, I cant think of any practical significance at the moment. ?But at least in the field of geology, the names of the four people present today can definitely be left. Furthermore, practical significance is often discovered during seemingly useless research processes. What if. But Chang Haonan shook his head: The areas with abnormal signals on this satellite map are widely distributed, not just in Longyuan. The exploration power of the petroleum system alone may not be enough. After speaking, he looked at Li Nianheng. ??As the person in charge of the remote sensing mission, the other party will inevitably have to deal with relevant units in the geology profession. In terms of professional research, they are obviously more professional. Li Nianheng already understood what he meant without him opening his mouth. The latter immediately called a staff member from behind: Xiao Song, please contact the land and resources department immediately and ask them to coordinate with the comrades from the China Geological Survey Bureau to cooperate with us to conduct on-site exploration at these points. Do it all? There are dozens of marked points on the map. The person who was called was a young man who looked like he had just started working. He had obviously never seen such a formation. ?Li Nianheng pondered for a while. After calming down, he felt that the movement was a bit too loud, so he chose a compromise plan: If the personnel and funds are really limited, we should at least do the research on the Loess Plateau area in the east of Longyuan and the Alxa desert area in the west of Mongolia Province. I think the characteristic signals extracted from these two areas are more complex. Complex means a large amount of information. Since we are all on a trip anyway, we must give priority to places like this. In the east of Longyuan, the China Petroleum Exploration and Development Research Institute can send personnel to assist them. ?Chang Haonan finally added. "yes!" After the staff member answered simply, he turned around and trotted out of the hall. Professor Meng. Chang Haonan breathed a long sigh of relief and turned his attention back to the picture displayed on the big screen: Our project may not end so soon. (End of this chapter) Chapter 828 Isn’t it just equipment? Buy it! Chapter 828: Its just equipment, buy it! ?Geological exploration is by no means an easy and pleasant task, even when precise coordinates have been obtained. Fortunately, today''s technical equipment, especially vehicles and helicopters, are relatively complete, and safety is relatively guaranteed. But if you really want to dig deeper into a point, it will still take anywhere from a few months to a few years. Therefore, after deploying some key points of exploration work, Chang Haonan and Meng Zhenyuan returned to Beijing Hang University. For them, all they can do now is wait. Fortunately, Chang Haonan has no shortage of projects at hand. In the next half month, in addition to paying daily attention to the progress of Ricci flow surgery, he also guided Li Yabo in his graduation project. Actually, Chang Haonan didnt know what the so-called 1-meter all-composite shell specifically meant until the completion of the project before the Spring Festival Haofei wants to develop a new engine nacelle for the C808 passenger aircraft, which is about to be put into mass production. It is the thing that fixes the engine to the fuselage. The diameter is about 1.3 meters. If successful, it can probably reduce the weight of the aircraft by about 300kg. It can only be said that technically the future is indeed promising. But there is nothing operable for the time being. At present, almost all high-grade composite materials used in China rely on imports, and the cost is very high. The weight saved by replacing titanium-aluminum alloy with carbon fiber, even if it is extended to the full life cycle, is not worth the extra cost in the manufacturing process. ?Of course, it doesnt hurt to do some research in advance. After all, there will be many places where similar designs will be needed in the future. In the long run, carbon-based composites will be used in parts such as the casings of launch vehicles and ballistic missiles, the bodies of large aircraft, and even the fan blades and casings of turbofan engines where the working environment is not particularly harsh and the probability of damage is relatively low. It is a major trend for materials to replace traditional alloys. Quan should be regarded as a technical reserve. Of course, for an undergraduate doing graduate work, these are still relatively far away. So what Chang Haonan asked Li Yabo was to design a theoretically feasible overall plan. The main purpose is to exercise the latter''s ability to use existing tools to solve problems. Otherwise, it would be really embarrassing if the students of the creator of TORCMultiphysics cannot play the software developed by their teacher. ?However, sometimes life is like this. When you dont expect something, it can often give an unexpected result. ?One day at the end of March, just as Chang Haonan was replying to Professor Perelmans email asking about the progress, Li Yabo suddenly poked his head into the office: Teacher, please take a look, my simulation results seem a bit strange... ?These days, students with laptops are naturally very rare, so Chang Haonan could only follow Li Yabo to the student office to check on the situation. ?It is said to be a student office, but now there are fewer students than teachers in the Torch Laboratory, so it is actually equivalent to Li Yabo having it all to himself. ?So, the young man simply moved his luggage from the dormitory and started his life as 007 Liver Emperor. After entering the door, Chang Haonan carefully bypassed a folding bed and came to Li Yabo''s workstation. ?On the computer screen, a finite element model that is thick in the middle and thin at the ends, slightly cigar-shaped, is displayed. It was the overall plan of the engine nacelle that he designed. ?Chang Haonan came closer to the screen and quickly read the results of the finite element calculation In 1999, last year, a hardware engineer named Huang Renxun officially coined the term "GPU". In fact, the processor that assists the CPU in graphics processing took shape as early as the 1980s. But the GeForce256 launched by NVIDIA has brought an epoch-making feature. Real-time programmable shading technology. TORCHMultiphysics will soon launch a free (not free shipping and storage carrier materials) and optional feature update. ??When the user''s computer is equipped with an independent GPU, the results of finite element calculations can be directly superimposed on the surface of the 3D model in the form of graphic rendering. Instead of being able to output only a dry table like in the past. Though in terms of results, there is no difference between the two. But for the human eye, the former method is obviously much more intuitive. Therefore, Chang Haonan can almost see at a glance that the design on Li Yabo''s computer basically meets the project requirements proposed by Haofei. The result looks okay... He stood up straight again: Do you think something is strange? ?At this time, Chang Haonan glanced at the annotation in the lower right corner of the screen out of the corner of his eye. ?The nature of the material he chose is written there. ?Youngs modulus 700Gpa The corners of his mouth twitched fiercely. There is no need to look at other parameters. Definitely T700 carbon fiber. It can only be said that if you are not a family member, you dont know how expensive firewood and rice are. T700 has only been put into commercial use in the past two years, and because the production capacity cannot be increased, the unit price is quite high. If you use this kind of thing extensively on a small 50-ton regional aircraft, you may be beaten to death by the user... Fortunately, it is still in the design stage. Anyway, judging from the standards of practice, the problem is not big. Here it is. ?Li Yabo continued to enlarge and enlarge the 3D model as he spoke. Finally, Chang Haonan discovered that the carbon fiber structure on the screen was not just a shell modeled. It is composed of many thin layers. Have you studied the impact of composite laminate structures on performance? ?Chang Haonan was a little surprised. Yes, I feel that if we only provide an overall design plan, then Party A should be able to do it by itself, and there is no need to find our research team to solve the problem at all. ?Li Yabos first sentence made Chang Haonan very satisfied. Although I dislike the Haofei Group a bit. After I tried several different lay-up plans, I found that the orthogonal lay-up is significantly better in terms of ability to withstand shear loads and lateral loads, but this result is different from what I saw when I was on a business trip with Haofei Group. Its not the same Also, even if they are orthogonally stacked, the results of my two calculations will be different..." In a daze, Chang Haonan seemed to see himself from a few years ago in the other person. Subjective initiative is full. ?Of course, I am a true undergraduate after all, so there is definitely still a huge gap in ability from what I was back then. ?However, this is not the most important thing. Thats not surprising. He listened quietly to what the other person said, and then replied: "The anisotropy of this type of carbon fiber-reinforced composite material is very complex, the interlayer strength is unstable, and the thermodynamic and mechanical properties of the fiber and matrix are very different. We, or not only us, are very concerned about this material all over the world. The nature of it is still not fully understood. So, although the current TORCMultiphysics can use your method to model the structure of multi-layer composite materials, it is unable to perform accurate numerical simulations in this case. "This is why I told you before, as long as we can design a theoretically feasible overall plan." Hearing Chang Haonans explanation, Li Yabo showed a slightly embarrassed look on his face: Thisit turns out to be like this ?He said and scratched his head: Then arent these all useless efforts... Originally, Li Yabo wanted to secretly do the whole job and shock the teacher for a whole year. ??As a result, I didnt finish my work in the end, and I had to go to the teacher to help find the reason. That cant be said. Chang Haonan could roughly guess what the other party was thinking, and smiled and shook his head: After all, you have done the entire modeling and calculation process yourself. It will be a rare experience for your future research work. Some experiences can only be summed up through failure. Li Yabo nodded somewhat disappointedly. But Chang Haonans next sentence made his eyes light up: "However, if you are really interested in the microstructure of composite materials, then I can directly purchase a batch of related equipment and materials for you and study it experimentally." Reallyreally? ?Li Yabo could hardly believe his ears: I asked before when I went to Haojing on a business trip, the equipment and materials are very expensive... Obviously, he had already secretly understood the situation. Before Li Yabo could finish speaking, Chang Haonan waved his hand: "The equipment used for laboratory research is different from their industrial production. The cost is not that exaggerated. You, teacher, and I can still afford it." You just have to think clearly. Strictly speaking, this is materials science, not the field of structural mechanics. Experimental research is far more difficult and troublesome than numerical calculations..." Ive thought it through. Li Yabo replied firmly. Thats good. Seeing his students persistence, Chang Haonan could no longer discourage him: With your current design, its no problem for you to graduate from a bachelors degree. He said and pointed to the model on the computer screen: So, from now on, I will officially treat you as a graduate student. Hearing this, Li Yabo couldn''t help but sit up straight. ?Although he didnt express his position, this action said everything. Chang Haonan nodded slightly when he saw this, and then said in a solemn tone: I will give you one month to write a proposal report on the research on the microstructure of composite materials and attach the experimental equipment and materials you need. If there is nothing wrong with the report, I will prepare it for you as soon as possible. Do you understand? (End of this chapter) Chapter 829 Invitation from Hufei Chapter 829 Invitation from Hufei Li Yabos mobility is really hard to say. ??After Chang Haonan assigned him a task, he went on a routine business trip to Shengjing At present, both models of the turbofan 10A/B have entered the installation and flight test stage. If there are no problems with these dozen or so prototypes used in small batches, the next step is to finalize the design. Correspondingly, the information fed back from the user side has also increased exponentially than in the past. These first-hand data, even if there are no abnormalities, are extremely valuable assets for aviation development research and development. Hence, Chang Haonans frequency of trips to Shengjing has increased significantly in the past six months. At least it is no longer in a state of long-term remote control. ? And when he returned to Beijing Hang University from 606 School a week later, Li Yabo handed over the completed plan as soon as possible... Half an hour later. You...did all of this alone? Chang Haonan asked in a calm tone while flipping through the last few pages of the report. ?However, he put on this look specially. After all, you still have to maintain a somewhat enigmatic image in front of students. But in fact, what Li Yabo handed over could be said to be full of surprises. In addition to the normal content of the project proposal report and the list of required equipment and materials that he had previously requested, the other party also listed two to three similar models of different brands as alternatives for each item in the list. ?Even more detailed information including performance, price, lead time and even supply risks is supplemented in the form of appendices. ? It can be said that even a chief procurement officer or purchasing manager of a medium-sized enterprise can hardly do better in preparing plans. ?Of course, the above two positions are more focused on the ability to manage and control channels, rather than just getting a plan. But thats all for later. For an undergraduate student with no special resources to do this, it completely exceeded Chang Haonan''s expectations. I asked my classmates about the contact information of some foreign manufacturers and the format for writing business emails, and I figured out the rest by myself. Li Yabo replied: Actually, I didnt plan to do the latter at the beginning, but after I finished writing the proposal report and equipment list, I came to the office several times and couldnt find you, so I thought Id be free anyway, so I might as well make some preparations in advance. Oh...I was on a business trip a few days ago. Chang Haonan said as he took out a business card from the glove box under the monitor and handed it to the other party: If you encounter this situation again in the future, just call me on my mobile phone. This was printed in batches by the general office of the office when he first took up the post at the Aerospace Power Group. But Chang Haonan really doesnt have many social occasions, so he hasnt sent out a few photos for almost a year now. Thank you, teacher. Li Yabo took it with both hands and put it in his pocket. After a short interlude, Chang Haonan returned his attention to the report on the table. He pointed to a column with the words SGL Group of Germany and Hexcel Group of the United States: Are you the one who contacts these foreign companies? These two companies are two of the four largest carbon-based composite material manufacturers in the world and are leading companies in the industry. If Li Yabo can directly contact each other in his personal capacity, there will be some means. ??The latter came forward and glanced at the part Chang Haonan was pointing to: Yes, my English is pretty good, so I can handle it whether its on the phone or sending an email. Obviously, he misunderstood the meaning. Thought it was his tutor asking him about language problems in communication. I dont speak English proficiency. Chang Haonan waved his hand: As far as I know, neither SGL nor Hexcel has general consumer business. If you call directly, they will reply to you? ?This table contains the detailed product series of the two companies, including brands, corresponding performance and prices. The content is quite detailed. It really didnt work at first. Li Yabo was a little embarrassed and replied: But then I claimed to be the purchasing manager of Torch Group and learned some professional business English from my classmates, so SGL and Hexcel Group sent me product catalogs. "But Toray and Teijin said that they must have some kind of certificate issued by the group, which is quite troublesome anyway. In addition, I really can''t speak the same English as the Japanese people opposite me. In the end, I thought that I had already contacted the two companies, so I decided to Dont worry about that anymore. After hearing this, Chang Haonan laughed a little helplessly: You have a really sharp mind In the past, he was always trying to pull off the big flag, bluffing to scare others. ??I never thought that one day I would be the one being pulled out to scare people. ?Furthermore, even he did not expect that the name Torch Group would be so well-known internationally. So much so that the other side didnt even consider why a company that started out as a software company suddenly wanted to buy carbon fiber... As for the other two... It is not necessarily aimed at the Torch Group. There is a high probability that this is a classic rigid operation of Japanese companies, which is not surprising. "hey-hey" Li Yabo scratched his hair: "I was mainly thinking that I am a member of our Torch Laboratory, and the Torch Laboratory is a laboratory jointly established by Torch Group and our school. So after calculation, I should be considered at least half of the Torch Group''s employees...rounding off Just one ?Chang Haonan showed an expression that he couldn''t bear to look at directly, and then waved his hand to indicate that this was not a big problem and there was no need to delve into it further. You will send this to Teacher Liu Chenchen later and ask her to report it to the school, and then you can prepare to place the order. This is whats special about the Torch Laboratory. Even this kind of six-digit expenditure is subject to the reporting and annual review process. In other words, you can spend money first and then conduct a centralized review at the end of the year. ??If we were to change places, considering the things listed in Li Yabo''s table, and also involving the use of foreign exchange, I think it would be quick to get the approval next year. Then Ill practice with what I have on hand in the past few days, and then we can officially start after the equipment is in place? ?Li Yabo is obviously gearing up and ready to do something big. Just like every new graduate student who has just entered the laboratory and has scientific research dreams. However, most of them will not be able to continue on the road of scientific research due to reasons including but not limited to wrong choice of research direction, insufficient objective conditions, bad luck, or inappropriate mentors. The conditions in Li Yabo are obviously much better. Chang Haonan looked at the other person''s eagerness to try, and suddenly felt that it was necessary for him to take such a highly motivated student to see the world. Theres no hurry yet. He pushed the form on the table in front of Li Yabo: The project you took over from Haoxifei was initially to build an engine nacelle for the C808 passenger aircraft, right? "right." The latter nodded. Have you seen that plane? "this" ?Li Yabo hesitated for a moment: Ive seen photos in Haofei. It feels round and round, and its different from the passenger planes Ive seen before. Although Figure 334 is a 100-seat regional airliner, its body diameter is that of a mainline airliner, and the visual effect is indeed relatively short and thick. But this is also one of its main competitiveness. Have you never seen it before? ?Chang Haonan leaned his upper body on the back of the chair and asked in a relaxed tone. "No." Although Haofei Group is responsible for the manufacturing of some parts of the C808, it does not involve the body structure and final assembly, so it does not look like an airplane at all. Thats good. ?Chang Haonan opened the drawer and took out a beautifully printed envelope. ?On it is a C808 passenger plane, painted in red, white and yellow, taking off. Two days later, Hufei Group invited me to attend the celebration ceremony for the completion of the certification test flight of the C808 passenger aircraft. Then you will go with me to see our domestic passenger aircraft! ?Li Yabos expression was dull at first, then turned into surprise, and then turned into ecstasy. Performed a face change without props. Reallyreally? Those who choose aviation as a major in college and are still determined to continue studying on this path after four years have some sentiment or at least interest in it. As Chinas first jet airliner to complete certification, the C808 has both emotional value and commemorative significance. Definitely a chance to witness history. "certainly." ?Chang Haonan gestured to the envelope on the table: Inside is an invitation ticket to board the plane. Li Yabo picked up the envelope faster than ever before and looked inside. Then he raised his head again as if he remembered something: Teacher, if you give me this, you... ?Chang Haonan smiled and took out several more identical envelopes from the drawer: How could Hufei only give me one invitation? There are many more here ?He said and showed it in front of Li Yabo: Its just that basically all the people who are close to me have received it, so except for you, I really cant give it away (End of this chapter) Chapter 830 C808, successful evidence collection! (4K) Chapter 830 C808, Evidence obtained successfully! (4K) Two days later, Li Yabo followed Chang Haonan and boarded a plane from Xijiao Airport to Shanghai. Judging from the formers bloodshot but bright eyes, the child must have been so excited that he didnt sleep all night. After getting on the plane, I touched and looked at this and that. After all, flying is a rarity these days. Let alone business jets. Even Chang Haonans performance was not much better when he first got on the plane. So he didnt stop the other party. It wasn''t until the plane started taxiing that Li Yabo sat back down in the seat opposite Chang Haonan and Yao Mengna. The latter also got an invitation because he had solved many problems for Hao Fei when he was a PhD student. After all, this is the first time that Chinas own jetliner has successfully completed all certification flights It is true that Hufei did produce a batch of 40 MD82 passenger planes in the past, but they cannot be regarded as their own models and are just equivalent to working for McDonnell Douglas. There is no need to repeat evidence collection. ?Although the C808 is very similar to the Tu334, Tupolev and Hufei have specially upgraded and adjusted it in accordance with China''s requirements and standards. Even in order to ensure production consistency and thereby reduce costs, the Russian-made Tu334-100C, which was officially transferred to mass production at the Kazan Aviation Factory, finally adopted the C808 rather than the technical status of the Tu334 prototype. The original design is retained only in areas such as high-cold adaptability equipment and cockpit instruments. Such an aircraft, to say it is independently developed may not even make sense. After all, the overall design and a considerable part of the components still come from abroad. But if it is a Chinese model, no one can find anything wrong with it. It is normal for the battle to be more grand. The speed of business jets is slightly faster than that of ordinary passenger jets. The aircraft of the 34th Division have a very high priority in flight scheduling. So it takes less than two hours to get from Beijing to Shanghai. At this time, Runway 1 of Pudong Airport has only been completed and put into use for half a year, and there is no trace of the new assembly workshop that later belonged to COMAC. So the aircraft after final assembly at Hufei will be docked at Dachang Airport located in the northern suburbs of the city. In the past, it was quite troublesome for civil aviation to conduct test flights at military airports. ??But after the adjustment in 1997, Hufei already belonged to the Commission of Science, Technology and Industry for National Defense, which made it a lot more convenient... Challenger 601 landed lightly on the only runway at Dachang Airport. When he was in mid-air just now, Chang Haonan had already seen the situation on the ground. At the entrance of the assembly workshop, a total of five prototypes 101-105 and certification verification machines were arranged in a semicircle. And around there, there were crowds of people. At the center of the five planes facing the noses, a red carpet-covered rostrum has also been temporarily set up. Teacher, these five planes are parked in the crowd. Is it impossible to take a test flight today? ?Li Yabos face was almost pressed against the porthole, with a bit of disappointment in his tone. Obviously, he thought the invitation to board the plane was a plane ticket. It was impossible to have it in the first place. Today I am just attending a ceremony. Chang Haonan shook his head in amusement: The C808 has only completed certification test flights and has not been officially put into commercial operation. These five aircraft are still in prototype status. How can anyone dare to put so many important guests today into a prototype? Li Yabo thought it was right when he heard it. After all, the Airbus A320 did this once, and it hit a tree and crashed. ?So much so that there is still an urban legend circulating today. Said that the woods were planted by Boeing... ?Planting trees in Boeing is of course just a joke, but with such a lesson learned from the past, it is normal to be conservative. ?However, understanding is understanding, and the disappointment will not fade away so easily. While the two of them were talking, the plane had slowly stopped. Dont be too disappointed either. Chang Haonan said as he unbuckled his seat belt: At the end of this year, or at the latest early next year, the first mass-produced C808 will be put into commercial operation, and the route should be from Beijing to Shanghai as expected. ?Li Yabos eyes lit up. However, I probably wont attend the maiden voyage ceremony. Chang Haonan changed the subject: If you want to participate, try to see if you can make the project at hand more famous before then, and ask them to send you an invitation letter when the time comes. Yao Mengna next to her also smiled knowingly when she heard this. ?With Chang Haonans current influence, it is not difficult to get a quota for his students to participate in the first flight. But what others give is ultimately not as good as what you take. Besides, Li Yabo also has this potential. ?During the previous interview, if Chang Haonan hadn''t also taken a fancy to this student, she would have been prepared to take action. Sure enough, after hearing Chang Haonan''s words, Li Yabo was not disappointed, but became excited again. ??If this were placed in a hot-blooded comic, the fighting spirit in his eyes would probably be ablaze. As the cabin door opened downward, Chang Haonan and his party walked down the gangway one by one. Hufei has naturally arranged for general manager Zhou Qingzhi to receive him personally. After the aviation industrys group reform, Hufei has become independent from it and has become a lower-level enterprise directly responsible to the Science and Technology Commission. ?This is mainly to avoid unnecessary troubles caused by the military-industrial nature of the Aviation Industry Group when selling passenger aircraft in the future. Those who appeared together at the bottom of the gangway even included Zhang Hongbiao, deputy director of the Science and Technology Commission, who came in advance. Comrade Haonan. The two shook hands: I have heard a lot about your deeds before I took up my post at the Science and Technology Commission. Even though it was the first time we met, Zhang Hongbiao was very enthusiastic: This time I went to Director Ding to apply. Otherwise, the opportunity to attend the ceremony on behalf of the Science and Industry Committee would not have been mine. ?Zhang Hongbiao was appointed to the Science and Technology Commission after Zhang Dongxu retired at the age of 18 after the conference last month. He is responsible for the military-civilian integration industry. So Hufei also has a domestic passenger aircraft project, which is actually his scope of responsibility. ??It''s just that after talking like this, the relationship between the two people has obviously become quite familiar. In fact, in terms of level, Zhang Hongbiao is still half a level higher than Chang Haonan. ?However, first of all, the latter situation cannot be judged based on common sense. Secondly, unlike other deputy directors of the Science and Technology Commission, Zhang Hongbiao does not have a military position. He is also the first member of the leadership team of the Science and Technology Commission without a title. ?From Chang Haonans perspective, one can naturally guess that the superiors have begun to intentionally remove the military-related color of the Science and Technology Commission, paving the way for the next transformation. But for Zhang Hongbiao himself, he must still be worried that his work will not be carried out. There is absolutely no harm in establishing a good relationship with Chang Haonan, a key subordinate who also has no title. ?After a few people exchanged pleasantries, they walked along the red carpet to the assembly workshop in the distance. This road was obviously specially designed. Because it happens to pass a landmark of Dachang Airport in the middle The Y-10 prototype made its first flight exactly 20 years ago. ??This plane was originally parked slightly outside the factory area, and it was obviously moved here specially for today''s ceremony.?????However, the arrangement is good. Zhang Hongbiao and Chang Haonan stopped nearby. The latter looked up at the plane, which had become somewhat worn out due to weathering and weathering, and couldn''t help but feel a little emotional. ??Its just that Zhang Hongbiao is right next to him now. ?If the other party doesn''t say something, Chang Haonan won''t be able to speak easily. ?And Zhang Hongbiaos cooperation is just right: For us, luck 10 should be a lesson. "yes" Chang Haonan replied: The technical level is insufficient, which is an objective problem of ability, but disbanding the technical team, sealing up technical data, and even losing the data later...this is an ideological problem. The research and development of Yun 10 was not hosted by the Science and Technology Committee, so the two of them naturally had no psychological burden when dissing. Zhou Qingzhi, who was following behind, was worried that he couldn''t find a chance to interrupt, so he quickly expressed his stance when he saw this: "When the Yun-10 was discontinued, I was just a technical director. I remember that at that time, Comrade Cheng Bushi made several reports, hoping that while introducing the MD82 final assembly line, some of the R&D and production capabilities of the Yun-10 could be retained for the future. Domestic passenger planes leave a spark. As a result, the Civil Aviation Administration of China did not agree, and in the end the entire production line and team were transferred to McDonnell Douglas ? Hufei is a new member who was transferred to the Science and Technology Committee a few years ago. Zhou Qingzhis move is obviously to express his intention to break away from the past. Chang Haonan naturally heard it. ?However, although he also looked down upon the people of the original Civil Aviation Administration, there was no need to show it on this occasion. So Zhou Qingzhi continued: "Just like that, when the news came out in 1996 that McDonnell Douglas was going to be acquired by Boeing, we almost didn''t know what to do from top to bottom. At that time, there was also a big layoff, and there were all kinds of rumors. If the Science and Technology Commission had not given us a clear path in time, we dont know what would have happened..." While saying this, Zhou Qingzhi kept looking at Chang Haonan. As an insider, the former certainly knew who pushed the entire Hufei Group at the most critical moment. Its just that some things are not suitable to be explained too clearly. Chang Haonan smiled, nodded and replied: C808 and C909 are just to solve the problem of whether we have domestically produced passenger aircraft. After all, the overall design belongs to others. After we have fully understood these two models, we will definitely develop a passenger aircraft with completely independent intellectual property rights. You, Shanghai Flying, have a long way to go... Where, wherewe already have some experience after all. ?Zhou Qingzhi waved his hand: President Chang said last year that he would design domestic high-bypass-ratio engines for future mainline airliners. This is the real hard nut Obviously, as a unit mainly responsible for the research and development of large civil aircraft, Hufei has always been paying attention to the trends of the aviation power group. At that time, Zhou Qingzhi speculated that the C909 was subject to basic design issues. If a larger-diameter engine was installed, it would be difficult to ensure a sufficient safety margin between the lower edge of the engine nacelle and the ground. So the "new generation mainline passenger aircraft" mentioned by Chang Haonan at that time must have been a brand-new model after the C909. Today, this guess has been verified. At two o''clock in the afternoon, the celebration ceremony for the successful collection of evidence officially began. First of all, it was naturally Zhou Qingshang who took the stage to summarize and report: Domestic jetliners are the long-cherished wish of hundreds of thousands of employees in the aviation industry who have been striving for them. Starting from the beginning of the project, Hufei Group has gone through more than 7,000 days and nights of unremitting struggle..." ?Chang Haonan sat on the rostrum behind Zhou Qingzhi and glanced at the invited guests. ? Many technicians who participated in the Y-10 and MD82 projects are now elderly and have not had the opportunity to participate in the development and production of the C808 passenger aircraft. Listening to Zhou Qingzhis review of the past twenty years, I naturally had mixed feelings in my heart. Especially the heads of the Yun-10 R&D team at that time were in tears... As the first launch user, the representative of China United Airlines has a mixture of pride and worry on his face. ? Being able to operate domestically produced jetliners first is naturally a huge benefit in terms of industrial policy. But on the other hand. A new aircraft and logistics support system means a new set of technical teams. Before the fleet size is expanded, the cost cannot be amortized. Furthermore, new model aircraft that have just entered service are generally at the high point of the bathtub curve of failure rates. This means that the average maintenance hours per flight hour is higher, and it is difficult to fly three or four times a day on the same route with different flight numbers like mature models. In short, there are both challenges and benefits. ?Chang Haonan even saw a few foreign faces, who should be foreign customers. You must know that C808 is stuck at the highest point of the mutual recognition range of airworthiness between China and Europe and the United States. In other words, this will be an aircraft certified by CAAC, EASA and FAA at the same time. It is still quite attractive for some airlines that do not need to fly long-distance routes. As for other units involved in research and development, Shanghai Aircraft employees, and foreign experts on Tupolev... Of course everyone is happy. ?However, amidst all the joy, there are exceptions. ??The representatives sent by the Civil Aviation Administration to attend did not look very good. After all, Hufei used to be under their jurisdiction and was only stopped later. At the beginning, many people were ready to see the Science and Technology Commissions jokes. After all, at that time, it seemed that without the cooperation of Europe and the United States, let alone whether a passenger aircraft could be built, even if it could be built, it would be difficult to find a market without a certificate of airworthiness from others. ?As a result, not long after, news came that China and the European Unions JAA had signed a mutual recognition agreement on airworthiness. ? Immediately afterwards, the C808 and C909 branch and main line passenger aircraft were launched one after another... Then, the development of these two models has been smooth sailing... Thats all. However, after McDonnell Douglas was acquired by Boeing, it quickly gave up its entire MD series passenger aircraft product line. ?This means that if we had continued to insist on developing MD90, we would have failed miserably. Comparing the two aspects, the result is a bit intriguing... After seeing the faces of all living beings in this circle, Chang Haonan smiled faintly. ??If he had a camera in his hand at this time, he would be very willing to record the scene just now. At this time, Zhou Qingzhi had already talked about the certification test flight. Comrade Haonan. Zhang Hongbiao, who was sitting next to Chang Haonan, suddenly said: It took a little more than a year to obtain certification and test flight for such a large aircraft? ?Chang Haonan nodded with some confusion and said to himself that this 50-ton regional passenger plane looked so big... And more than a year is not too fast. You know, there is no A380 with a serious name at the moment. In the last life, even counting from the first flight to getting the certificate, it only took 1 year and 10 months... Zhang Hongbiao paused for a moment and continued: When I went to Bingcheng for inspection before, I heard from the comrades there that when they collected evidence for Yun-12, it took several years..." Now Chang Haonan understood. ?If compared with the Yun 12, it is indeed quite big and quite fast... This is the benefit of achieving mutual recognition of airworthiness with Europe and the United States. ?He thought for a moment and replied: When you go abroad to do airworthiness work, on the one hand, you are not familiar with the place, and you are not used to the working language and work style. On the other hand, you will inevitably be deliberately put in a stumbling block by others. It is definitely more convenient than in our country..." Zhang Hongbiao nodded thoughtfully, and then asked: As for this market... I just heard Comrade Qingzhi say that the only domestic launch users are United Airlines and Bashu Airlines. Can they have a large enough fleet size? Thats not a problem. Chang Haonan shook his head: "There are only a few machines in the first batch of production, and it is unlikely that there will be too many users to start up. It will take a long time to ramp up production capacity. What Hufei needs to worry about now is not the order volume, but whether it can complete the order with quality and quantity. " Besides, if part of the luggage compartment under the passenger cabin of this platform is changed into an additional fuel tank, it can probably guarantee a range of 5-6 thousand kilometers. It is absolutely no problem to make it a special aircraft platform or a special aircraft. It can be used as a backup..." (End of this chapter) Chapter 831 Millennium Math Puzzle Chapter 831 Millennium Mathematical Puzzle After Zhou Qingzhis opening speech, it was naturally Zhang Hongbiaos turn as the attending leader to speak. As he spoke, the faces of the people from the Civil Aviation Administration below became even darker. Chang Haonan has no doubt that if it were not for the direct decision from higher-level leaders, it would be difficult for C808 to even find the second launch user of Bashu Airlines. ?However, this is not important anymore. After all, the reason why a separate unit like the Civil Aviation Administration was established was not just to manage a few airlines. More importantly, we want to rely on it to coordinate the development of the entire Chinese civil aviation industry. As a result, you coordinate and coordinate everything, and your operations are as fierce as a tiger''s. Performance in the last 20 years was not as good as the next two years. ?Now that the latter half of the functions have been handed over to the Science and Technology Commission, there is no need to retain such a large group of people. Therefore, the Civil Aviation Administration of China should soon make adjustments from a direct bureau to a secondary bureau under relevant ministries and commissions, stripping off most of its administrative functions and becoming a relatively simple business department. It does not pose any threat anymore. ?This is why Chang Haonan told Zhang Hongbiao just now that Hufeis most important task now is to deliver orders with quality and quantity Although it is difficult for regional passenger aircraft to become mainstream in a country with the population size and land area of ??China, even flying to some border areas and routes in the central and western regions is enough to support this model. As long as it can operate stably and safely for several years, with the support of FAA and EASA airworthiness certification, exporting is almost a matter of course. Plus some orders for military platforms and special aircraft... It is no exaggeration to say that good times are yet to come. After the celebration ceremony, there is naturally a routine banquet. Its just that Hufei can be said to be ingenious this time. Neither chose a high-end hotel nor a group restaurant. Instead, the banquet hall was set up directly in the open air near the assembly workshop. In mid-April in Shanghai, the weather was just cool but not cold. ??The breeze is blowing slowly, and not far away are the five passenger planes that are the protagonists of today''s celebration... It is also a different kind of experience. ?Amidst the crowd of toasters, Chang Haonan toasted to Zhou Qingzhi and the United Airlines representative next to him. Then, I wish you success in your first business operation! At the same time, across the ocean. Massachusetts, Clay Institute of Mathematics. ?Early in the morning, Langton Clay hurried into the office of Arthur Jeff, the director of the institute and a professor of mathematics at Harvard University. As soon as he entered the door, he placed a newspaper in his hand in front of the latter, and then sat down on the sofa not far away: Arthur, next month, the Collge de France will hold a conference on mathematics for the millennium, and we need to make some noise. The two co-founded the institute two years ago. Because the main business of the investor and sponsor Clay is a businessman, Jeff is responsible for the daily work of the institute. ?However, the former is the financial owner after all and still has the right to speak on key matters. The Clay Institute is said to be a non-profit organization, but as we all know, non-profit not profit-making. ? Langton Clay invested a lot of money in the institute, partly because he was interested in mathematics, a subject he didn''t know much about. But the more important purpose is to gain a certain influence in the academic circle. Objectively speaking, he is quite successful in this regard ??Although the institute has only been established two years ago, it is already somewhat famous in the circle of theoretical mathematics. Even some well-known mathematicians will at least have a certain impression of the name Langton Clay. If it is in public, a few words of "high praise" will be given out of politeness. Mathematicians also need to eat. ?However, Clay himself is still not satisfied with the status quo. ? He ??has always hoped that his Clay Research Institute can become the world''s top research institution like the Institute for Advanced Study in Princeton. Even if it is not top-notch in level, at least it should be top-notch in influence. Make some noise? ?Jeff picked up the newspaper and quickly scanned the reports: Langton, you know, mathematical research requires inspiration. "There is only a little more than a month left, and I can''t guarantee you that we will come up with any world-shaking results." "Well..." ??Clay was a little frustrated, but he also knew that the other party was right. ?Mathematics is not something that you will definitely get results if you are willing to spend money. At least not within the specified time limit. Originally, I planned to hold a Millennium Mathematicians Conference in the name of the institute at the end of last year, but it was overtaken by Princeton, and this time it was the Collge de France If it continues to be delayed, the millennium, a time window that attracts worldwide attention, will pass..." From the end of 1999 to the first half of 2000, activities to celebrate the millennium were relatively normal. But if its late 2000 and youre still celebrating the millennium it seems rather strange. So, there is not much time left for Clay. ?Looking at the anxious look on his old friend and sponsors face, Jeff had no choice but to start thinking. As a mathematician, he quickly thought of a wild idea: Langton, maybe... we can think differently. Perhaps you have heard that a hundred years ago, in 1900, David Hilbert proposed 23 mathematical problems at the Second Congress of Mathematicians? Actually, Langton Clay had not heard of it. ?Of course he knew Hilbert, but that was all. ?However, this does not affect his understanding of the other party''s meaning. "You mean, I...uh...our institute can also raise some mathematical problems and call on mathematicians to answer them?" Arthur Jeff shook his head, seemingly helpless at Clay''s overestimation: Just a call is definitely not enough. Hilbert was already a world-famous mathematics master in 1900. He proposed 23 mathematical problems and naturally some people responded. Our institute..." Speaking of this, he raised his head and looked at Clay on the sofa: Our research institute only has a name, but not much fame...so if we want to have enough influence, we still need some additions. You meana reward? Yes, the bigger the amount, the better. Jeff replied. Thenone hundred thousand dollars? Clay asked tentatively. O ?Jeff almost spat out the coffee he just drank. One hundred thousand dollars is less? Clay felt a little tingly on his scalp. You must know that although he provides a large amount of funding to the research institute every year, this kind of sponsorship of scientific research is actually a way of tax avoidance, which does not require him to actually lose much money. But if there is a reward, the money will be scattered out. One hundred thousand dollars is indeed a lot, but since what you want is a gimmick, it will definitely not be enough. ?Jeff replied: At least a million dollars. Hmmthen what if I also propose 23twenty-three million US dollars? "no" ?Jeff shook his head like a rattle: First of all, there is a high probability that there are no more 23 mathematical problems with enough weight for you to post a reward. Secondly, since it is a reward, money needs to be paid after it is solved. You dont think that those mathematical problems that have been left until now will be solved easily, right? "If we raise the level of difficulty of problems a little higher, such as Hodge''s conjecture, Riemann''s hypothesis, analytical solutions to the N-S equation, and Poincar''s conjecture, I estimate that no one will be able to solve it in a few decades. Just keep your bounty hanging..." After some explanation, Clay also realized that this idea is indeed feasible. Immediately afterwards, he believed that since the problems listed by Hilbert were called "mathematical problems of the century," then the problems he offered rewards for solving must have higher names. How about we call these problems Millennium Prize Problems, or Millennium Math Problems? You are the one who paid for it, I dont have any objection to what you call it. Jeffs eyes also shone with excitement and ambition: But I hope it will be up to me to decide what issues are included in the bounty. (End of this chapter) Chapter 832 Revealing the shape of the universe Chapter 832 Revealing the Shape of the Universe "Of course, old friend. You are the head of this institute, and this should be your job." ?Lenton Clay replied with a smile almost without thinking. but. Immediately afterwards, his tone became serious: I only have one request, and that is to be quick. The Millennium Mathematics Conference will be held next month. If we want to catch up to participate, then no matter what, we must start building public opinion before this month, otherwise it may be difficult to get an invitation. ?But Arthur Jeff frowned. As a professor of mathematics, he has shown considerable genius attributes since he was a child. Hands-on math exams from childhood to senior level are basically all full marks. ?In this way, he entered Harvard University smoothly. Then the sky fell. Soon he realized that there was a gap between genius and genius. ? As the famous saying goes - every water cooler keeper in the NBA is Michael Jordan in his or her own life. ?Every scumbag at Harvard is also a genius in his or her own life. Unfortunately, Arthur Jeff became one of them. ?Of course, it is indeed an exaggeration to say that he is a scumbag. After all, after graduating from Harvard, Jeff stayed at the school to teach and was promoted to become a professor. It can even be regarded as crossing the threshold of "mathematician". But thats all. After so many years, he has already had a clearer understanding of himself ??It is already quite difficult to achieve a reputation in history by relying on serious academic achievements. You can only use some swords to take a more eccentric approach. Hence, he must consider whether this will be his only chance in this life. ?Millennium Math Puzzle. There is a one million dollar reward for each solution. Gimmicks are enough. Even people who dont understand mathematics can at least understand the value of one million dollars. The only problem is academia. ?If the chosen issue is not of high enough theoretical and practical significance. ?Perhaps its simply not difficult enough. Within two years of your release, people have cracked it three times, five times, five times and two times twice. ?That can indeed leave a name in history. Just leaving a name in the image of a clown. Hence, one must be cautious enough in this matter. After thinking for a while, Jeff came up with a compromise plan: Anyway, its just to build momentum. Just publicize the million-dollar reward. As for the specific reward list, we can leave it in suspense and wait until the conference to announce it. This may have a better effect. Thats fine too. ?Lenton Clay follows the good deeds: "But at least the quota must be determined first. I mean, set up a total of several bounty questions. You just said that there may not be 23 questions left for me now." In fact, if possible, he wanted to completely replicate Hilbert''s operation. But since the objective conditions do not allow it, then if you are only one or two less than the opponent, you will actually be inferior. Its better to have less and achieve the effect of making things more valuable when they are scarce. Thenseven? ?Jeff gave the answer quickly this time. In fact, he has already determined about five to six questions in his mind. The reason why he chose 7 is because in many European and American cultures, 7 is a number with special meaning. Since you want to speculate, you must have enough factors. Thats it. ??Clay nodded: Two days later, an announcement was issued in the name of the Clay Institutes Scientific Advisory Committee, saying that in order to promote the development and application of mathematical theory, we decided to spend US$7 million to offer rewards to seven mathematical puzzles around the world... " In the 1980s and 1990s, especially in the early to mid-1990s, the Chinese media paid almost pathological attention to foreign news. It is not the kind of thing where big things happen abroad and then you pay attention to them. But whether something happens or not, you should pay attention to it. ?Even some media with official background will report some foreign trivial matters with added interest. You can say that this is because of the unfamiliarity with the outside world after the initial opening up. Of course, you can also say that this is because of the stinky feet of foreigners. ?At the turn of the century, although thanks to Chang Haonan''s changes to the timeline, some Chinese people''s filter on foreign countries, especially the United States, is a bit broken. But on the other hand, due to the changes he made to the timeline, the accumulated emotions among Chinese people were also much weaker. After all, what happened in early 1996 has been a long time ago. The successful entry into the WTO at the beginning of the year has rekindled some people''s fantasies about the West. In short, although the situation has improved compared to the 1990s, big things like "reward of US$7 million" still spread quickly to the country. The efficiency is comparable to that of the self-media era more than 20 years later. It''s just that Chang Haonan didn''t pay attention at the first time. ??When Tang Lintian excitedly ran to the computing center with the newspaper to find him, he only got the answer "Professor Chang closed the door to thank guests and is concentrating on solving key problems" ?After Chang Haonan brought Li Yabo back from attending the certificate collection celebration ceremony in Shanghai, they got into the computer room. ?For more than half a month, apart from occasionally going out to eat, I even slept inside. Because, the Ricci flow truncation method that has been searched for through supercomputing has produced results. ?Perelman successfully gave two lemmas that lead directly to the canonical field hypothesis and the long-term existence hypothesis. That is, assuming M is a three-dimensional compact simply connected manifold, it is easy to know that it is orientable, and the metric on any given M is normal through scaling, and then this normal metric is used as the initial value. , you will definitely get surgical Rich flow. Next, as long as it is proved that the solution can disappear in finite time, it can be deduced from the simple connectivity of M that M is diffeomorphic to S^3. That is [Theorem 1] in the entire proof process. ? Poincare Conjecture - Any simply connected, closed three-dimensional manifold must be homeomorphic to a three-dimensional sphere. And the fact that "the solution can disappear within a limited time" is exactly the result that Chang Haonan needs supercomputing to help him find. In other words, this proof has closed the loop. ? Even compared to the series of proofs given by the previous Perelman between 2002 and 2003, it is a step further. Because, Chang Haonan also dealt with the problem of "singularity points" in Ricci flow during the proof process. It can be regarded as directly capping the skyscraper in the field of mathematics called Poincar''s conjecture. Chang Haonan let out a long sigh of relief as he looked at the content on the draft paper in front of him. ? He ??believed that Perelman, 6,000 kilometers away, should be doing the same thing as him. Furthermore, the progress is almost the same. He picked up a cup of strong tea from the side and took two sips. In the past, Chang Haonan basically only drank plain water. ?Just in the past few days, he discovered that tea can indeed bring about a refreshing effect. I just picked up some from Tang Lintian a few days ago, so I got into it. It can be regarded as blocking the way for later generations... ?Taking into account the proof process of Chang Haonan and Perelman, if separated, it would be possible to produce about ten or twenty papers at the level of the "Annals of Mathematics". Wrong Even though it is in the Annual Journal of Mathematics, it cannot be said to be water. In short, it leaves future generations with nowhere to go in this direction. At least for now, Chang Haonan can say with great confidence: No one knows topology better than me He didn''t come back from his thoughts until the new email notification sounded. From Perelman. How do you think we should publish the entire proof process? This is the first email between the two that does not mention any academic issues since they met. But it shows beyond a shadow of a doubt that ?The other party also succeeded. Two people cross-checked each other''s results and ultimately came to the same conclusion. ?This basically avoids the mistakes of Alfred Whitehead or Papa Chiracopoulos. ?Both of them thought they had proved the Poincar conjecture, but in a short period of time, their mistakes were discovered from the beginning of the proof. As for the issues mentioned in the email... In the last life, Perelman, who solved this problem alone, chose to disclose it directly to the world. To be honest, just half a year ago, Chang Haonan, who had just dabbled in the Poincar conjecture, still didnt quite understand what the other party was thinking. But now. Faced with nearly a hundred pages of proof process. Facing nearly a century of ups and downs from 1904 to the present. He actually had the same idea... ?Chang Haonan touched the keyboard with both hands. ?A string of characters appears quickly on the screen: Our work is to describe the specific appearance of the four-dimensional universe in the three-dimensional world. Such achievements that span dimensions should naturally not be bound to a specific journal. Therefore, I suggest that you skip those publishing houses and publish it directly to the whole world in a completely open form! (End of this chapter) Chapter 833 The Poincaré conjecture has been proved Chapter 833 Poincar Conjecture...has been proven Complete disclosure is easy to say, but it also requires attention to methods. ? Chang Haonan and Perelmans proof process for the Poincar conjecture, although it is simpler and easier to understand than the method proposed by the latter alone in the previous life, still requires a certain amount of topology knowledge to understand. At least 99.99% of the people on earth are definitely hopeless. Furthermore, the compiled length is at least dozens of pages. Considering that Chang Haonan also used some numerical calculation methods in the final solution process, an appendix should be added to supplement and explain the calculation procedures. The final complete version will definitely be over a hundred pages. Hence, traditional media such as radio, television, newspapers, etc., cannot be counted on. ? Can you imagine a female news anchor reading a math paper from beginning to end with a smile? Honestly, Haonan can''t. So we still have to rely on the Internet. ?? And if we talk about completely open academic websites... Without a doubt. arXiv. Although this was originally a website designed to satisfy researchers in the computer field, by 2000, its content had gradually included physics, mathematics, biology and other subjects, and it had also gained considerable recognition throughout the academic community. Spend. ??Of course, in addition to arXiv, the same document will be uploaded to the official websites of Beijing Hang University and the Skeklov Institute of Mathematics at a later time. ??When Chang Haonan sent this proposal to Perelman via email, he quickly received a reply from the other party. Different from the usual concise and to the point. This time, maybe its because he finally realized his long-cherished wish for many years, or maybe its because of the joy of meeting a close friend. In short, Perelmans reply this time is not only long, but also contains a rare excitement between the lines. . Actually, it is also my wish to publish the results directly through arXiv instead of a certain mathematics journal, but considering that this historic result was completed by the two of us, I decided to fully respect your opinion... [I am very happy to see that you have made the same decision as me. This shows that we are not only similar in academic level, but also in academic pursuits. For me, this joy is no less than unraveling Poincar. The theorem itself] ?This email once again confirmed Chang Haonans previous thoughts Perelman was not a loner, but he rarely met anyone with whom he could communicate as an intellectual equal. Then...get ready to submit your article... ?Chang Haonan closed the email page and began to organize the contents on the draft paper into the computer bit by bit... Three days. Its another three days. ?Chang Haonan finally completed the last inspection and uploaded the document in .pdf format to the website. Compared with many magazine submission websites that require you to copy and paste content onto a web page, arXiv can upload files directly, which is quite user-friendly. Then Click to submit! arXiv does not have a peer review process, so uploaded documents will be seen by researchers who pay attention to related fields as soon as possible. "ha-" After doing all this, Chang Haonan let out a long yawn. Fortunately, when we were building the computing center, a temporary dormitory was specially set up on the same floor as the computer room. Otherwise, I might have to sleep on the floor during this period. But even so, I cant sleep well even if I have something on my mind. In this case, the shaft worked for more than half a month. Even he felt a surge of exhaustion the moment he relaxed. ?Before leaving the computer room, Chang Haonan refreshed the web page one last time. I found that in less than a minute, the number of readings exceeded 100. Obviously, although the corresponding time in Europe and the United States is either early morning or midnight, such a blockbuster paper will obviously not lack attention... Chang Haonan, who came out of the computer room, was originally going to contact Zhu Yadan directly and ask the latter to take him home. In the end, I met Tang Lintian in the corridor who had come to visit him for the countless time. Professor Chang...Chang? Liu Chenchen was repeating to Tang Lintian what Chang Haonan had said before "retreating", just like before, not to let anyone disturb him. As a result, he was only halfway through speaking when he saw Chang Haonan coming out of the work area on the other side. What does Professor Chang... Tang Lintian opposite was actually just stopping by after lunch, so he didnt have much hope. For a moment, I didnt even realize what Liu Chenchen was talking about. But he soon noticed that the other partys eyes were focused behind him. So he turned around suddenly. Then his pupils shrank: Professor Chang, Ive really looked forward to you ?Tang Lintian strode forward and walked to Chang Haonan: Youve been out of touch for more than half a month. What if something urgent happens... Before he could finish speaking, Chang Haonan waved his hand tiredly: If someone calls the red phone in my office, Teacher Liu will notify me. "Since the phone didn''t ring, it means the sky won''t fall..." After finishing speaking, Chang Haonan turned to look at Tang Lintian next to him: Principal Tang came to see me this time... "oh" ??Tang Lintian was stunned for a moment, then replied with a smile: "Last week, I saw in the newspaper that some mathematical institute in the United States was offering a reward of US$1 million for seven unsolvable mathematical problems. I wanted to come over and ask you, you and Perelman The professor was trying to solve the Poincar conjecture whether it might be inside, but he didn''t see you several times in a row." Later on, I almost developed a habit of taking time to come over every day to see if you come out...I even forgot to take the newspaper..." There is a legend that if you do something for 21 days in a row, you can form a habit. ?Then Tang Lintian is indeed fast now... At this time, Liu Chenchen also intervened: I still have that newspaper here, if I need it... "Need not." Chang Haonan shook his head slightly: The computer room also has computers that can connect to the Internet. I am just in seclusion, not cutting off contact with the outside world. I know the seven major mathematical problems of the millennium. In fact, apart from contacting Perelman during this period, he was basically in a closed state. It was only when Tang Lintian mentioned it that he remembered such a thing. But its too troublesome to explain, so Ill just say I saw it online. The Poincar conjecture If nothing else happens, it should be inside. ?Chang Haonan''s tone was quite determined. Tang Lintian, on the other hand, was immediately dazzled ? ?The Millennium Mathematical Puzzle, with its $1 million reward, has indeed had a considerable impact. Even one day''s news network reported the matter in three sentences in a briefing segment. ??If before the heat is completely over, a professor from Beijing Hang University solves one of the problems... ?Thinking of this, he immediately asked: "Then...after you solve this problem, will you be...the first one..." Tang Lintian pointed at Chang Haonan and then outside. His words were already a bit incoherent. ?Just thinking about that scene, the corners of his mouth couldn''t help but curl up. ??If there weren''t two other people in front of me, I would probably have to perform a dance. However, what Tang Lintian never expected was... No need to wait any longer Chang Haonan covered his mouth and yawned: Weve solved it ?His tone was so flat, as if he was saying, "I ate two fried dough sticks and drank a bowl of soy milk this morning." So much so that Tang Lintian didnt even react at the first moment. "ah?" Resolved...what? But in an instant, he realized the answer to his question. "etc" ?Tang Lintian was shocked: You meanPoincar He was already working very hard to restrain himself just now. ??Now that Chang Haonan is so frightened, his hands and feet won''t obey his orders at all. Yeah...the paper has been posted to arXiv without going through any journal, so it can be read now. Chang Haonan glanced at Tang Lintian who was startled and trembling all over with sleepy eyes: Let me rest for two days, then I will send you the manuscript of the paper and post it on our colleges website After finishing speaking, regardless of Tang Lintian who was speechless and unable to make any movements, he staggered towards the door... After a long time, Tang Lin finally came back to his senses. Secretary Liu, do you still remember when the Millennium Mathematics Conference was held? May 24th. Liu Chenchen replied almost without thinking. She had known before that her boss was solving a mathematical problem. Although as a liberal arts student she didnt know what it was, she still paid close attention to the relevant news. Thenwhats the date today? ?After asking this question, the two of them turned their heads and looked at the electronic perpetual calendar hanging at the end of the corridor. May 24, 2000 (End of this chapter) Chapter 834 Millennium Mathematics Conference Chapter 834 Millennium Mathematics Conference At almost the same time Chang Haonan walked out of the computer room and met Tang Lintian. France, Paris. A conference that has attracted almost the attention of mathematicians from all over the world is being held at the Collge de France. People all like a sense of ceremony. Mathematicians are no exception. The last millennium, or in other words, the last century starting from 1900, was undoubtedly the golden age of scientific development. It is hard not to look forward to where science will lead mankind in the new century and millennium that is about to begin. Mathematics, as the Queen and Servant of Science, has naturally become the center and focus of this great discussion. This Millennium Mathematics Conference is exactly the response of the mathematics community to this. Its just that compared to the common academic conferences in the past, todays situation is slightly different. ?In addition to mathematicians, there are hundreds of thousands or even millions of people around the world who are also paying attention to this. ?But what they focused on was not the meeting itself. It is a list that will be announced at the meeting. Seven major mathematical problems of the millennium. ?Since this reward was first disclosed by several media outlets a month ago, it has quickly aroused heated discussions around the world. With the subsequent series of guidance, the popularity of the topic has not even decreased but has increased. ??Now it has vague momentum that overshadows the Millennium Mathematics Conference itself. In fact, when the Clay Institute of Mathematics proposed to announce the reward list at the meeting, the conference committee refused at first. ?Although many mathematicians were already gearing up to win a million-dollar bounty at that time, everyone was still a scholar, so they had to be more reserved. ?However, in the end, it still failed to withstand the effect of money ability. Considering that the research direction of several members of the conference group is number theory, and the field of number theory involves a series of well-known mathematical problems such as Goldbach''s conjecture, Riemann hypothesis, BSD conjecture, etc., which are likely to be shortlisted... ?This result does not seem surprising. In short, after the opening ceremony and the opening speech entitled "The Importance of Mathematics", what is currently going on is the much-anticipated announcement of the list. ?In the audience, Maxim Kontsevich, who was about half an hour late, quietly sat next to the British mathematician Andrew Wiles: Perhaps I havent missed a crucial moment? "No." ?Wiles shrugged: They are still advertising their institute. Compared to a mathematician, Koncevich is closer to a theoretical physicist, and his research direction is obviously impossible to be included in the list from the beginning. ?And Andrew Wiles studied number theory, and all his life''s study was to conquer Fermat''s last theorem. Originally, this should be one of the popular candidates today. ?The only problem is that Wiles had already completed the proof and publication of Fermat''s Last Theorem from 1993 to 1995. Suffered the loss of moving too quickly. So, as two people with no hope of participating in this competition, last night they each made a list of their guesses about the top seven mathematical problems of the millennium and made a bet. Get ready to see who has a higher accuracy rate. And soon, the result will be revealed. By the way, where is the student you brought here? ?Concevich suddenly asked: This is the one who told you yesterday that he was studying the ABC conjecture. You mean Rastega Arash? ??Wiles'' eyes were still fixed on Arthur Jeff who was speaking on the stage. The latter is still introducing content about the history of mathematics at this time, but compared to the naked propaganda just now, this part is closely related to the theme of today''s conference, and it is also an area of ??interest to many mathematicians, especially senior mathematicians. He forgot to hand in the report yesterday and was punished by me to watch the live TV broadcast in the hotel room this morning, so he did not come to the scene..." When Arash''s name was mentioned, a smile appeared on Wiles'' lips involuntarily. Obviously, he thinks highly of his student. Perhaps it is for this reason that particularly strict requirements are put forward. According to the meeting schedule, there is no substantive academic content in todays morning session. Even if I dont come, it will be a pity at best and it wont really delay anything. ??Konsevich actually just asked casually, and at this time, he had already turned his attention to the curtain in front of the venue... at the same time. In a hotel about a few kilometers away from the venue. ??Rastega Arash, who was just mentioned by the two men, was looking at a TV and a laptop at the same time with a grimace on his face. On TV, naturally, there is a live broadcast of the Millennium Mathematics Conference. On the computer screen, there are several websites open at the same time Like many doctoral students, he is also responsible for helping himself and his supervisor keep track of the latest research progress of his peers. In fact, it was because he failed to submit a progress report yesterday that he lost the opportunity to enter the venue this morning.????So now he can only do two things at once. ?Of course, the main attention is still on television. The first of the seven major mathematical problems of the millennium...the NP-complete problem! Now, lets invite Professor Alexander Rezporov to come on stage and introduce the basic situation of NP-complete problems "ah-" ?Arash grabbed his hair hard and let out a cry: The opportunity to witness history... just slipped away... Watching this kind of thing through a TV screen and watching it live are two completely different feelings. ?Hence, Arash turned down the TV sound slightly and prepared to divert his attention through work. He first made himself a cup of coffee to refresh himself, and then sat back in front of the computer. Nextcheck out arXiv ?Arash decided to do some light work first. Since arXiv does not have a peer review mechanism, the articles on it are mixed, ranging from preprints released by big guys before publishing formal papers to garbage that civilians cannot bear to read. But in general, the level is still not as good as serious mathematics journals. It also looks relatively easy. Sometimes it doesnt even require thinking at all. He thought this while opening the website. The first thing that catches the eye is Proof: Any simply connected, closed three-dimensional manifold must be homeomorphic to a three-dimensional sphere How do you feel that I have seen it somewhere ?Although his research direction is number theory, this title still feels a bit familiar to Arash. "etc" He stopped drinking coffee: Isnt this an expression of Poincars conjecture? ?Thinking of this, the corners of Arash''s mouth couldn''t help but curl up: Let me see which civil science company claims to have solved it However, he was only halfway through his soliloquy when he saw the author''s name. ?CHANGHaonan. Havent heard of this. but ?GrigoryPerelman. ??Have heard of this before. Not Minke? Or is it just the same name? Or is it a fake name? In an instant, thousands of thoughts rushed through Arash''s mind. To be fair, he cannot be entirely blamed for this. Number theory, because it is relatively less abstract, has always been the most popular field among civil sciences. ?Especially for those who claim to have solved Goldbachs conjecture, they earn hundreds if not thousands every year. ?In this environment, it is quite normal for Arash, who studies number theory, to first react when he encounters Minke. But in the field of topology where Poincar''s conjecture is located, the situation is much better. After all, most people dont even understand the basic concepts and have no room to develop. ?However, in any case, Perelmans name is still on it. ?Arash still clicked on the author''s details to take a look. Then I found out WTFis that really Perelman? The remaining half cup of coffee was spilled with a shake of his hand. ?However, its not needed anymore. When it comes to refreshing your mind, this article is much better than coffee. In an instant, Arashs tiredness disappeared. ?After being stunned for a few minutes, he turned his attention back to the TV. At this time, Arthur Jeff has revealed the name of the second item of the seven puzzles. ?Hodges conjecture. ?But this time, Arash no longer felt pain or envy at all What kind of history can a small thousand-year mathematics conference count? I am the one who really witnessed history! (End of this chapter) Chapter 835 Reveal the seven major problems Chapter 835 reveals seven major problems As a doctoral student studying number theory, Arash himself, and even his teacher Andrew Wiles, did not have the ability to identify whether the content of this paper was valid. But this is not important. No matter what. Perelman, and of course one other person, jointly claimed to have proved the Poincar conjecture. This is big news in itself. A big news that can shock the entire mathematical world. ?Thinking of this, Arash no longer bothered to watch the introduction of Hodge''s conjecture on TV. ??He used the fastest operating speed in his life to download the paper from the website, then opened it and took a look at the length The common length of contemporary mathematics papers is around 20 pages, and some longer ones may reach 40 pages. It is more convenient to print it out and read it. But since what others have proved is the Poincar conjecture, it certainly cannot be inferred according to common sense... Obviously, Arashs concerns are correct. Just loading the PDF file took almost half a minute. ??And when he pulled the progress bar on the right side of the document to the bottom and saw a three-digit page number, he almost spread his hands and lost his breath. ??If this length were printed, it would be almost a book. And it is a size that cannot fit on a floppy disk. Alash turned his head again and glanced at the TV screen. The introduction of the second result is now coming to an end. ?According to this calculation, the morning meeting should last about another hour... The hotel is about 8 kilometers away from the venue in a straight line, and the distance may be about 12 kilometers... After some analysis, he finally made a decision Turn off the TV. Unplug the power supply. Put your laptop into your computer bag. Change clothes ?Only five minutes later, Arash arrived at the door of the hotel and stopped a taxi. To the French Academy of Sciences. As soon as he got in the car, he hurriedly said to the driver: The French Academy? Its not easy to get there. ??The driver glanced at Arash who looked anxious in the rearview mirror, put the gear into gear, and started the car slowly: It was downtown and there was an academic conference going on, so there was a lot of traffic. The Academy of Sciences is located on the south bank of the Seine River, across the river from the Louvre. Combined with the French-style urban construction style of Paris, it is indeed hellish for driving. "I know." Arash just ran all the way from the elevator to the parking lot, and he is still out of breath: I just want to attend that meeting, so please hurry up. The sooner the better. ?This time, the driver looked back at him. Okay, then sit tight. As soon as he finished speaking, Arash felt a huge acceleration coming from the back of the seat. Hey, your name isnt Daniel Morales ??But his complaints were directly drowned in the howling wind outside the window... The other side. In the venue of the French Academy of Sciences. The first six of the seven major mathematical puzzles have been revealed. NP complete problem, Hodge conjecture, Yang-Mills existence and mass gap, existence and smoothness of N-S equation, BSD conjecture, Riemann hypothesis. Each item is of central importance to the development of mathematics. In fact, the guesses given by Maxim Kontsevich and Andrew Wiles were highly repetitive. So far, the two of them have only guessed one item wrong. In this regard, it is this last one that determines the outcome of their bet. Kontsevich believes that considering the difficulty and academic value of these problems, there is a high probability that the Poincar conjecture will be the finalist. Wiles speculated that the Clay Mathematics Institute started campaigning nearly a month in advance, and its core goal must not only be to encourage academic development, but also to attract some attention outside of academia. In this case, there must be one among the seven major problems that everyone is familiar with. So, although the scientific significance of Poincar''s conjecture is obviously greater, Goldbach''s conjecture still has a greater chance of occupying the last spot due to its popularity. Then, next, comes the final piece of the Millennium Mathematical Puzzle. ?On the stage, Arthur Jeffs emotions have also reached their peak ?Today, he is alone. Having stood on the podium at the Millennium Mathematics Conference for nearly two hours. ??Although the content of the story is not directly related to the research results, it is enough for him to leave a place in the history of mathematics. ? Whenever future generations mention the seven major mathematical problems of the millennium, the name Arthur Jeff will definitely be mentioned. Thinking of this, he took a deep breath, and then slowly glanced at the nearly a thousand spectators sitting under the stage, as well as a dozen cameras at different angles. Then he turned around and slowly tore off the last strip of white covering covering the marking board. ?Poincar Conjecture Poincars conjecture! ??Consevich and Wiles are obviously not the only ones who have just been speculating on what this last item is. In fact, when Jeff walked back behind the podium, he had already noticed the expressions of joy or regret in the audience. Its not that they all made bets with others. What is more important is the right to speak. After all, not all scholars are as famous in their fields as Koncevich and Wiles. Most people still have to worry about research funding. In most cases, the people in charge of funding are not mathematicians. It is a layman who is easily influenced by this kind of public opinion. Therefore, if your research field is included in this influential list of millennium problems, it will undoubtedly be a great benefit for future funding applications. This is also the main purpose of Langton Clay. ?Of course, one more thing is... People must always have dreams. ?What if you happen to solve this problem by yourself? Therefore, when the name of the Poincar Conjecture was revealed, many researchers and professors who specialize in topology showed a happy smile. ?Jeff paused for a few seconds to allow the first wave of emotions in the audience to be fully released. Then he spoke again and introduced the basic situation of Poincar''s conjecture. After all, in addition to experts, there were actually quite a few students present. Besides, the TV broadcast is open to the whole world. If we stretch a rubber band around the surface of an apple, we can slowly shrink it to a point without tearing it or letting it leave the surface. However, if we imagine the same rubber band being stretched and retracted on a tire tread in the appropriate direction, there is no way to shrink it to a point without tearing the rubber band or tire tread. In this case, we think the apple surface is simply connected, but the tire tread is not. About a hundred years ago, mathematicians had known that a two-dimensional sphere could essentially be characterized by simple connectivity, but when Henri Poincar proposed that a three-dimensional sphere, that is, a four-dimensional space with unit distance from the origin When all the points satisfy the corresponding description, the problem becomes extremely difficult..." For nearly a hundred years, Poincars conjecture has been a goal that scholars in the field of topology strive for, and is known as the code to decipher the shape of the universe ? Kontsevich and Wiles were both winners of the Fields Medal in 1998, so they naturally did not need to consider whether they could find sponsors for their projects. Therefore, after the last name was revealed, Wiles was willing to admit defeat, took a ten dollar bill from his pocket and handed it to his old friend. I must admit that I may have been somewhat biased against the Clay Research Institute. ??Wiles said: It seems that although they like to create momentum, at least at the academic level, they still talk about some principles..." For the Poincar conjecture, Jeff did not ask Gao Ming to introduce it like the previous questions. Because his own research direction is related to the field of topology. ?Although it is probably out of the question to prove the Poincar conjecture, it is still fine if we just briefly talk about the concept. With the end of his introduction, the announcement of the entire Millennium Mathematics Problem has also come to an end. (End of this chapter) Chapter 836 The seven major problems became six? (10,000 per day) Chapter 836 The seven major problems have become six? (10,000 per day) As usual, there is a question and answer session at the end. The audience raised their arms in unison ?Perhaps professors are more reserved in this situation. But students dont care. ??And there are many students who are encouraged by their tutors to ask questions. Soon, a young woman sitting in the third row was selected by Jeff to speak first. ? Judging from her age, she may not even have graduated from a bachelor''s degree. Professor Jeff, regarding your reward, can you get it just by solving the problem? Or are there other requirements? In fact, this is an issue that most people are concerned about. Of course there are some specific requirements. ?Jeff motioned for the other person to sit down first: The specific terms will be listed in detail in the documentation on our institutes homepage. I can summarize the two more important points here. First, the results cannot be mailed directly to our institute, but must be published on a widely recognized academic platform, and the final conclusion needs to be given by the mathematics community. You know, the strength of the institute is limited, and it is impossible to spend all its energy on dealing with letters from folk mathematics enthusiasts. Hearing what he said, the audience burst into laughter. ? Who is a serious mathematician, especially one who is engaged in number theory, who has not received dozens or hundreds of letters from top-notch people claiming to have proved Gechai or the Riemann hypothesis? ? Even after Andrew Wiles proved Fermat''s Last Theorem, people continued to send letters to mathematical institutes in various countries, claiming that his proof method was wrong, or simply did not know that such a thing was happening. So, it is reasonable to set some thresholds. After a short pause, Jeff continued: Second, the award will be officially awarded at least one year after the results are published. In contrast, this one elicited little response Solving problems at the level of the Seven Problems is often accompanied by the emergence of a new theoretical framework, resulting in papers that must be extremely long and extremely difficult to understand. One year The review may not yield results. After answering the first question, Jeff called up the second young man. Professor Jeff, I would like to know, according to your estimate, how soon will it be possible for the first person to receive this bonus from your institute? ?This question played right into Jeff''s heart, so much so that he even doubted whether the other person was a hired agent hired by his boss. Thats a good question. ?Jeff replied: "In fact, the reason why we offer a high reward of US$1 million for each problem is not only because the problems themselves are of profound significance to the development of science, but also because in the process of solving these problems, mathematicians There will be some by-products that are also of great value..." Take Poincars conjecture as an example. Although it is generally believed in the mathematical community that geometric topology methods seem to be more suitable to solve this problem than direct topology solutions, in the process of trying to solve it, direct topology There has still been tremendous development. In short, compared to the final ownership of the US$7 million, we hope that everyone will pay attention to science and mathematics..." Of course, if you definitely want to get an answer, then I think an optimistic estimate might be 10-15 years In the audience, Andrew Wiles listened to Jeff''s talk and nodded slightly. What the latter said just now, whether it was sincere or for propaganda purposes, has indeed greatly improved his perception of the other party. As for that 10-15 year estimate ?Wiles just laughed it off. As for mathematical things, no one can give an accurate timetable. Maybe next month, maybe next century. Who can say for sure? At this time. A familiar voice suddenly sounded from behind him: Teacher? Teacher! ?Wiles was stunned for a moment, then turned around. ??However, he discovered that it was Arash who was "punished" by himself and banned from attending the meeting in the morning. The latter''s face looked a little pale for some reason, as if he had just been seriously ill. Arash? ?At this time, Koncevich next to him also turned around and saw the young man he remembered at a glance yesterday, and couldn''t help joking: You may have come at the wrong time, and now we have entered the question-asking period. After hearing this, Arash raised his head almost subconsciously, and then his whole body trembled suddenly: The seventh itemisPoincars conjecture? Thats right. ?Wiles frowned slightly, but nodded. ?Although he didnt care about the $10, he was still a little upset about losing the bet: What do you want to say? Old...Teacher. Arash gasped a few times: I just saw a paper on arXiv, saying that the Poincar conjecture has been proved! arXiv? Compared to Arash who was a little over-excited, Wiles''s reaction was obviously much calmer. Although arXiv has gained good recognition in the academic community, it is definitely not able to compete head-on with leading journals. ?In disciplines such as computer science and biology, the emergence of new ideas and the production of papers are so efficient that regular review can''t keep up with the rate of innovation of results. Therefore, it is very important to take advantage of arXiv first. But the productivity of mathematics papers from ideas to papers... Sometimes it is calculated in terms of centuries. ??More importantly, Arthur Jeff on the stage just made a joke about Minke. ?? And websites like arXiv, which can be published without approval, are undoubtedly the places with the most civil sciences. ?Wiles even suspected that someone might have played a prank after seeing the live broadcast. However However, the co-authors of this paper are Grigory Perelman and a Chinese named ChangHaonan. ?Arash''s answer made Wiles, who was sitting still, almost jump up. Are you sure itsthat Perelman? Alash nodded: I specifically clicked on it and looked at it, and Im very sure. While speaking, he had already taken out his laptop. ?But before he could press the power button, Wiles took it away. There is no trace of the calmness of everything is under control just now. Teacher, you... Arash originally wanted to ask, teacher, as a number theorist, can you understand the proof process of geometric topology? ??But after thinking about it, I felt that if I really asked this question, the relationship between teacher and student would probably be over. Thats why I said two words and then closed my mouth. Fortunately, Wiles had no time to care about what his students said at this time. He took out his glasses from his pocket, put them on, and then opened the PDF that Arash had downloaded to the desktop. Its really Perelman In fact, when I read the first page of this article, most of my doubts about Minke have been dispelled after all ?Wiles has never seen a civil science student who can write such a clear paper format... How come Ive heard of this ChangHaonan somewhere... He looked at the message from another author and said to himself: Beijing University of Aeronautics and Astronautics Koncevich, who was next to him, suddenly said: In the Annals of Mathematics last December, he published a paper proving two lemmas that have been pending in the field of differential geometry. After being reminded by an old friend, Wiles also had an impression: Is it him? Wiles still remembers chatting with a colleague who studied topology about that issue of the Annual Journal of Mathematics. ?Although the core of the topic at that time was not Chang Haonans paper, the other party still inadvertently mentioned that the result might promote the proof of Poincars conjecture. but ?Isnt this push too fast? ?He was still pondering just now, saying that it would take him a month at the earliest or a century at the earliest to be able to solve any of the seven previous problems. I thought I had left myself enough room for maneuver. The results are good guys. It would be interesting if the proof process in this paper was confirmed. Seven major mathematical problems of the millennium. How to use it for one month? This is not even an hour. The poster of the question is still standing on the stage. It will become the Big Six... (End of this chapter) Chapter 837 Luxurious review lineup Chapter 837 A luxurious reviewer lineup ?Wiles, who didn''t take it too seriously to watch the excitement, suddenly felt a little impatient. There is a high probability that he will not be able to understand this paper. So you need to find a professional. ?Even so-called professionals cannot understand it right away. But at least we can confirm whether there are any obvious omissions. Of course, Perelman cannot be a civilian. However, there have been many cases in history where mathematicians thought they had solved an important problem, but were found to have made mistakes very early on. Especially judging from the extraordinary length of this paper, I am afraid it will involve some new theoretical frameworks. Generally speaking, thanks to the great development of academic journals and the Internet, even if today''s mathematicians need to invent the wheel from scratch, they still have enough opportunities to take out the wheel separately for everyone to see, so as to avoid "building a car". Only then did I realize the wheel was square." But the situation before us is obviously unusual. ?According to Wiles''s speculation, the two authors may have been working hard in this direction to prove Poincar''s conjecture for many years. The paper in front of me should be the sum of all their work. As for the previous article in "Annals of Mathematics"... Most likely, it was just published casually so that the author named Chang Haonan would not appear too abruptly. ?Hmm, that must be the case. ?Thinking of this, Wiles looked around and asked Koncevich next to him: I remember...Richard Hamilton came here today, right? When he opened the paper just now, he noticed that the concept of "Ricci flow" was mentioned many times in the abstract section at the beginning. Even though Wiles did not study topology, he knew who was an expert in it. I think Ive seen him on the other side of the venue before. Concevich replied. Lets go and find him. Wiles didn''t care that Arthur Jeff was still answering questions on the stage at this time. He immediately left his seat with his laptop and pulled Koncevich from the middle aisle of the venue to the other side. Alash was a little confused by the scene in front of him, but he could only choose to follow his mentor quickly. Fortunately, there were thousands of people attending the meeting on the upper and lower floors today, and everyones focus was on the front, so not many people noticed that the two dignified Fields Medal winners were acting like thieves. , the cat crouched and ran around in the middle of the venue... ?Concevich has a good memory. Under his leadership, it didnt take the three of them long to find Hamilton, who was sitting in the second row on the right side of the venue. ??The latter was listening happily to Arthur Jeff''s explanation of why the famous Goldbach''s conjecture was not included in the seven major problems. He was obviously in a good mood. After all, I have always firmly believed that using the Ricci flow equation, it will be possible to prove Thurston''s geometrization conjecture and Poincar''s conjecture. Professor Wiles? Professor Koncevich? Hamilton subconsciously wanted to get up. These two still have a status of over 100 million in the world of mathematics. Especially Andrew Wiles. Although some people believe that his method of proof does not meet Fermat''s description of "exquisite", there may be other ways to prove Fermat''s last theorem. ??But in any case, this problem that lasted for 350 years and stumped Gauss, Euler, Hilbert and other big guys finally ended in the hands of Wiles. This alone makes him one of the most influential mathematicians of his time. ?However, Wiles had quick eyesight and quick hands and quickly stopped Hamilton''s movement: Professor Hamilton, this morning, just now, to be precise, my students saw a paper. ??He said, opening the laptop and placing it on the small table in front of him. ?Hamilton thought to himself that he couldn''t wait a while to read the paper, so he had to come to me at this time, but when he turned around, he saw the title of the paper. "Any simply connected, closed three-dimensional manifold must be homeomorphic to a three-dimensional sphere" ? ?He was just thinking about the proof of the Poincar Conjecture, and now a paper comes out saying that it has been proved? Which publisher received this submission? Hamilton asked almost subconsciously before looking at the specific content. Wiles looked at Arash beside him, and then shook his head: Its not a publishing house, its the arXiv website. Maybe youve heard of it. Of course I know this, the upper left corner of the document is marked with the URL of the website. Hamilton pointed to the computer screen and continued: I mean, when the author uploads the article to arXiv, he must also submit it to a magazine, right? ?There was a moment of silence. Obviously, no one can give an answer. ? It is already abnormal for such a paper to appear on arXiv. It is normal for other more abnormal things to happen later... ?Hamilton had no choice but to scroll down the document. Then, I saw a familiar name. Not Perelman, but Chang Haonan. About half a year ago, he saw this author''s article while reviewing for the "Annals of Mathematics". ?Hamilton can even clearly remember the content of the article. ?One of the conclusions is that topological surgery using Ricci flow can be used to construct geometric structures, thereby changing irregular manifolds into regular manifolds. ?That conclusion played a considerable role in promoting his status in the academic circle. Since Chang Haonan chose the Annual Journal of Mathematics for submission last time, it seems reasonable to continue to choose the Annual Journal of Mathematics this time, even if it is based on inertia... ?Hamilton even wanted to take out his cell phone and call Mikael Lagerstedt to ask if there was such an article. ?But in the end I endured it. On the one hand, we are all scholars after all, so we should be more reserved. ??More importantly, he has now seen the paper. The publisher, no matter which one it is, has obviously not seen it yet. Otherwise, for such a big matter, we should have directly contacted well-known scholars in all relevant fields. ?This means that compared to his peers such as John Morgan, Bruce Kleiner, and Valentin Benahou, he has already won at the starting line. When an editor saw it and found someone to review it, as a representative of the geometric topology line, he saw the paper earlier than others. Chance to lead the review team. There is no need to add extraneous details. With this thought in mind, Hamilton returned his attention to the computer screen. ??This is how academic work is. The author of the paper only needs to immerse himself in scientific research, but the reviewer has many things to consider... ?However, it didnt take long. Hamilton''s smile gradually froze on his face ??Although Ricci flow has been mentioned many times in the abstract and introduction, and his achievements in introducing Ricci flow into topology were even cited,... Its not the same again. How is it, Professor Hamilton? ?Looking at Hamilton, whose expression was changing unpredictably, Wiles asked. Somethings wrong ?Hamilton muttered. ??Wiles was stunned, thinking that the other party had discovered the error in the paper: Alas...surely there is still a problem... Although it was expected, it is still a bit of a pity. First of all, I couldnt really witness history. Secondly, I didnt have the fun of seeing the seven major mathematical problems turn into the six major problems live. Hamilton, however, shook his head: Its not the paper that has a problem. ?Three doubtful glances were cast at him. Its me who has a problem Ah? ?Wiles was a little confused by this sentence: Arent you the founder of Ricci flow theory? Hmm I used to think so too. ?Hamilton is still staring at the screen intently: But Im not sure now Whatwhat do you mean? Consevich, who had not spoken a word just now, looked puzzled. Hamilton shook his head in distress: "Although Ricci flow is also used, their ideas...are completely different." Look here, they built the Ricci flow into Lindelof space. And here, operating on the Ricci flow to find and eliminate the singularity before it occurs is what I have been working on for the past ten years..." In just the first five pages of the paper, Hamilton listed a dozen key points. They are all differences between the papers ideas and existing theories. It can be said that this is a completely different theoretical framework. "but" ?Wiles frowned: The speed at which you turned the pages just now... was like reading a paper written by yourself. I mean, if they really proposed a completely new theoretical framework, shouldnt it be very difficult to understand? Hearing this question, Hamilton finally raised his head: If Perelman had written this paper alone, I believe that would be the case. But another author, Chang Haonan, I discovered during my last review that the ideas of the paper he wrote are very different from ordinary people, but every step can be written in a place that is not easy for us to understand. ?Concevich was also surprised: Can there be such a person? ?Of course he knows that understanding something yourself and letting others understand it are two completely different things. In fact, one of the major problems currently facing the mathematics community is that as research fields continue to be subdivided and the depth of research in a single field increases, it is increasingly difficult for top mathematicians to understand the results achieved by others. For a truly influential paper, the review cycle often stretches to several years. It may not even be possible to judge it. The ability of Chang Haonan described by Hamilton is completely refreshing in today''s context. Anywaywhat do you think is the probability that they are right? ??Wiles asked. Hamilton did not answer immediately, but just lowered his head, rubbing his eyebrows and closing his eyes to think. Im afraid no one dares to draw a conclusion on this matter alone. ?After a long time, he finally opened his eyes again: Need to ask other peoples opinions. "who?" Sergey Novikov, Michael Friedman, Simon Donaldson, Jeff Chigurh, Valentin Benahou He said nearly ten names in a row. Wiles was secretly frightened when he heard this. Basically covers all topology experts of the previous generation and this generation. Including three Fields Medal winners. But its not over yet. After a slight pause, Hamilton suddenly turned his head: In addition, their proof mentioned a lot of physical concepts such as energy, entropy and temperature, so we need a mathematician with a background in theoretical physics. Professor Koncevich, I hope you can join us... Okay, now its four ?Wiles thought to himself: Maybe theres a fifth one (End of this chapter) Chapter 838 I changed the academic rules Chapter 838 I changed the academic rules When things have developed to this extent, whether it is from a purely entertaining level or from an academic impact level, it is necessary to pause the agenda. ?So, Wiles directly called a staff member next to him and said something to him. Then, the latter quickly came on stage and stopped Arthur Jeff''s question and answer session. ?Just when most of the audience felt a little confused, the lights in the main venue, which had originally been turned off to allow the audience to see the projector clearly, turned it on again. There was some commotion at the scene. Professor Jeff. Wiles walked straight to the stage and took a microphone from the staff next to him: I would like to ask, when does your reward for these seven questions start to be considered effective? Jeff didnt know exactly what happened at this time, but on the one hand he had to follow the arrangements of the venue staff, and on the other hand Andrew Wiles, as a big boss of the Philippine Awards, couldnt ignore the questions he asked. Legally speaking, at the same time as the opening of this Millennium Mathematics Conference, the agreement signed by Mr. Langton Clay, the patron of our institute, officially came into effect. "very good." Wiles showed a bright smile: Well, I have something to announce to you. ?He said and turned to face the audience: Just now, specifically, about an hour and a half ago, someone announced that he had successfully proved the Poincar conjecture. One sentence. The originally turbulent scene instantly became silent. ?Nearly everyones eyes were either shocked, dull, confused, or doubtful... turned to Wiles, who was holding a microphone on the stage. Perhaps to dispel everyones doubts, he then added: Now, my colleagues are assembling a team to verify the proof process ? It was as if a switch had been turned on. ?The scene instantly boiled like a frying pan ??Although it is not as popular as the field of Gechai, some people claim to have proved the Poincar conjecture, which is still not a big deal. But it is another matter to be able to enter the formal verification stage. Whats more, the person on the stage is still Wiles. A famous problem in mathematics was solved by this big man. ?Even if it cannot be concluded that the proof must be correct, it at least shows that it is enough to be taken seriously by the serious mathematics community. That is to say Seven major mathematical problems. One hour after publication. Could it be cracked by...? ?Arthur Jeff, who was standing behind Wiles, swayed slightly. He felt that the whole world had become gray. ?This is a live broadcast. For the whole world! ? I just vowed that if I am optimistic, the first problem may be solved in 10-15 years... Actually, this is not a big deal. 10-15 years is considered to be a satisfactory period. ??Even if you asked Wiles to answer that question on stage himself, he would definitely give a similar answer. As long as it can be slightly delayed for a year. Even half a year. No one would really make any use of his words. But today this is such a coincidence. He didnt even get off the stage... As soon as the front foot finished speaking, the back foot was slapped in the face. ?For a moment, he even hoped that Wiles''s proof was wrong... ?Besides Jeff, another person who was a bit broken was the convener of this meeting, Jean-Christophe Yorkz, who is also a big boss of the Philippine Prize. Because the meeting was in the afternoon, it was immediately suspended. Three of the four scheduled rapporteurs chose to participate in the review on the spot. ??What else is there to do? Lets wait until the review is over. As for whether it can be restored... That depends on the review efficiency. ??If the review is not until next year, it would be a bit strange to hold the Millennium Mathematics Conference in 2001. Perhaps it can be renamed the New Century Mathematics Conference and held next? Yorkz looked at Wiles not far away, feeling a little helpless. ?However, its not enough to be angry. After all, if the final confirmation process is correct, neither the organizers nor the participants of the New Millennium Academic Conference will be at a loss. It can even be said to be earned with blood. After all, the millennium will definitely exist in another thousand years. But it is not necessarily the case that "an announcement of a bounty will be followed by someone to prove it". On the other hand, as Wiles had guessed before, the number of Fields Medal winners on the review team was finally fixed at five Requires a mathematician with a background in theoretical physics. This request was tailor-made for Edward Witten Whats more, his research fields include Morse theory and topological quantum field theory, and he is also an expert in the field of differential topology. For Witten, who is in his prime, there is obviously no reason to miss such an opportunity to witness history in person. So, as soon as he got the news, he crossed the Atlantic and arrived in Paris that evening. At this time, several other reviewers have entered a state of retreat. ?Hence, as soon as Witten left the terminal and had no time to get on the bus, he was surrounded by the good-faith media. Basically, I asked him when the results would be available. Witten didn''t want to answer at first, but seeing this attitude, it would be difficult to escape without saying something, so he had to say something like, "The review of this type of mathematics paper usually takes months or even years, so I hope everyone can be patient and calm." . However Three days later. In an office of the French Academy of Sciences. Did wemiss something? Edward Witten looked at the paper in his hand, which was nearly as thick as a book, and asked hesitantly. The paper has been turned to the last page at this time. Or strictly speaking, it has been turned to the last page more than once. But no one could figure out the problem. The entire proof process is like a puzzle piece that has been designed in advance. Each chapter at the beginning seems to have little connection with each other. But at the end of the article, the answer to the Poincar conjecture is spelled out. Logically speaking, at this point, the results can actually be announced. ?Its impossible for a room full of mathematicians to be wrong. But this time, no one dared to take the lead in taking a stand. Everything went so well. Chang Haonan and Perelman developed a new set of tools based on the combination of topology. ?About its name, it was only mentioned once in an inconspicuous position. Structural topology. This shouldnt be something that can be understood in three days. But everyone present felt that they understood. Even Hamilton, who had been mentally prepared for this for a long time, was a little unsure at this time. Speaking of which, whether the paper is finally published should be decided by the editor-in-chief of the journal, right? Finally, it was John Morgan who first proposed. Actually, this suggestion is just to break the deadlock Would any editor have objections to the review opinions given by their group? ?However, this is the human psychology. ?Although there is essentially no difference, everyone was more or less relieved after having the excuse of "the editor decided". Just writing a review opinion. Its not my final decision. "Then I think...there is nothing wrong with this paper, and I suggest...publish it directly!" The oldest Sergey Novikov said first. He also puts an emphasis on the word "suggestion". After the first person came forward, others also gave their own "suggestions". ?Of course, its all the same as Novikov. Except Hamilton. But, so far. his voice was a little dry due to staying up late for several days: Still not found that the editorial team of any journal has received submissions of papers with similar content. So, we can only think that these two authors do not intend to formally submit the manuscript, but are really planning to publish all their results on arXiv? It should be like this. At this time, even Edward Witten knocked his head in distress. These two authors are simply the only outliers he has seen in his life. Well, I have one more question. John Morgans perspective on thinking about problems is always different from others: From now on, any research on topology will probably hardly avoid this paper. But it has not been published in any journal in accordance with strict academic requirements, and it is obviously not a treatise, report or news. Sohow do we quote it? The room fell into silence again. ?Everyone showed expressions of dumbfounding. The two authors caused more trouble outside of their papers than they had to overcome to understand their papers Perhaps Friedman, who once proved the Poincar conjecture of four-dimensional space, suddenly said: Can we change the citation rules to include open source websites like arXiv? (End of this chapter) Chapter 839 Theoretical level LV4, obtain passive skills! Chapter 839 Theoretical level LV4, obtain passive skills! Chang Haonan, who is far away in China, naturally does not know that the decision he made unintentionally will cause a lot of troubles to many big figures in the mathematics community. In the last life, although Perelman also disclosed his research on arXiv, he conducted it three times in two years. During this period, he also gave a series of lectures on his proof process and ideas. The result... Not many people understand it. So it took nearly three years to finally confirm that his proof was valid. In total, it actually left a psychological buffer period of five years for the entire mathematics community. However, this time, Chang Haonan and Perelman used another simpler, but also more subtle, idea. So much so that not to mention five years, there was not even a five-day buffer left. From the time they sent the paper to the time the review team understood it, it only took a little more than three days. Who can bear this? ?As Valentin Benahou, who participated in the review, later said: This is like a nightmare. What I have always been afraid of is the moment when others will prove the Poincar conjecture in a way that I dont understand at all. ?The reality is even more than that After reading the paper, you will find that the so-called "method I don''t understand at all" is actually so simple. And such a simple method, "I" never thought of it in the past. ?This is actually a big blow to a mathematician, especially a mathematician who has studied the Poincar conjecture but failed. Such as "Am I really lacking in intelligence?" In short, it was not until a week later that Chang Haonan, who had finally rested, saw on the news The review team, composed of a long list of well-known names such as Michael Friedman, Simon Donaldson, Edward Witten, etc., finally confirmed that the Russian scholar Gregory Perelman and the Chinese scholar Chang Haonan provided the The Poincar conjecture proves the process correct. The reporter was not polite and asked Witten directly, "Didn''t you say last week that you might have to wait a few months to a few years?" After hearing this, I bought a ticket and flew back to New York from Paris. What''s going on? The results came out in just seven days? So I had to buy a ticket and fly back. ??Its quite interesting to see a serious-looking math guy being criticized so hard that he doesnt know how to answer for a while... ?Of course, this is more of a joke, and its not aimed at Witten. After all, it has only been a few years since Wiles solved Fermat''s last theorem, and many people still remember the dramatic situation that happened at that time. Wiles announced in June 1993 that he had proved the Taniyama-Shimura conjecture, but it was soon discovered that his construction of the Euler system had serious flaws, so the Kolyvagin-Fletcher method could not be applied in the scenario at that time. In December of that year, Wiles publicly acknowledged that there were problems with the certification, but promised to resolve them as soon as possible. However, mathematical things cannot be solved just by solving them. In August 1994, Wiles even publicly admitted that his proof had failed. ?However, it was at this time that the story of survival from desperation happened. A month later, Wiles had an idea while conducting a review of the failure, and finally made up for the loopholes in the proof process. Finally, it was not until 1995 that Wiles'' proof was officially recognized and published. The whole process went through many twists and turns and took nearly two years in total. So, more serious media reporters basically know that Wittens previous estimate is actually normal. What is abnormal is this time. Consequently, attention quickly shifted to Andrew Wiles. Although he was not directly involved in the review process of the paper, he was the first person to stand up at the Millennium Mathematics Conference and disclose the relevant events to the public. "Professor Wiles, we still remember that the process of proving Fermat''s last theorem was quite... tortuous. So, what do you think of this time that the mathematical community announced that the proof of Poincar''s conjecture was established in just seven days?" Facing this question, Andrew Wiles shook his head helplessly, showing a "numb" expression. He swore that at first he just wanted to have fun watching Arthur Jeff and the Clay Mathematics Institute. The result... Lezi did see it. But he is not an audience, but a performer... ?However, the question still needs to be answered. ?Wiles sighed softly and moved closer to the microphone: "I think this is the charm of mathematics. You never know whether you will have an idea in the next second, and you never know whether it will take 10 minutes or 10 years to understand a problem..." "As far as the results are concerned, there is actually no difference between the two, so we might as well pay more attention to the process. One week is certainly enjoyable, but from another perspective, a longer process may also help to obtain more Complete understanding Wiles spent almost his whole life''s literary accomplishments and finally gave an answer that did not violate the principles of mathematics but could also protect the past. As a result, as soon as he finished speaking, he heard Koncevich complaining next to him: Dont listen to Andys words. When he officially admitted that he had failed to prove it, he looked like he was facing the end of the world every day. He even thought about how to write an apology letter..." ?There was a burst of good-natured laughter at the scene ??If Wiles does ultimately prove to be a failure, then this is definitely a malicious attempt to expose one''s shortcomings. But he succeeded in the end, so these became anecdotes that could be used to joke with each other. Its a little embarrassing at best After a short interlude, the topic quickly returned to the Poincar conjecture. This time it only took you a week to confirm that the proof process of the Poincar conjecture was correct. Does this mean that the difficulty of solving this conjecture is lower than that of some other well-known mathematical problems? This is a question that many melon-eating people like to hear. As a result, Valentin Benahou almost jumped up on the spot. ??The old gentleman has spent most of his life trying to solve the Poincar conjecture. If this thing is easy to solve, wouldn''t he... Of course not! Absolutely not! Benahu frowned: "Actually, it is difficult to directly compare the difficulty of mathematical problems in different fields, but as far as the Poincar conjecture is concerned, I can say this..." At this point, he stopped and took a deep breath to calm down a little: Poincars conjecture, at least so far, is still the only key to our possible understanding of high-dimensional space... ?As time goes by, reporters questions become more and more acute: It is said that the author of this paper did not submit the article to any mathematics journal, but chose to publish it directly to the world on a website? Thats right. So, does this mean that existing academic rules may be challenged? ?This issue is indeed a bit sensitive, so that the originally relaxed atmosphere at the scene suddenly became tense. ?After about a few seconds, Friedman, who was the first to propose incorporating the arXiv website into the standardized citation system, nodded: In fact, according to past academic practices, articles on preprint websites cannot be counted as papers because they can be published without review. "but" He changed the subject again: "Since it has now accepted and passed the inspection of the mathematics community, there is no problem in calling it a paper... As for the challenges you mentioned, we prefer to regard this incident as an opportunity and a way to promote academic openness. and equalizing opportunities. "Therefore, we are also considering how to integrate this paper into the academic system..." The reporter just now is obviously not ready to give up easily: Does this mean that articles published by others on the arXiv website in the future can also be regarded as academic papers? Facing this question, several people interviewed on the stage laughed. After looking at each other for a few times, it was Edward Witten who spoke: "Yes." If they can also prove the Poincar conjecture. ?The scene erupted into laughter again... In fact, from the perspective of academic journals, booksellers, and even many researchers, Chang Haonan and Perelmans approach has indeed greatly damaged their interests. Because what the reporter just said was right. This is to challenge the existing academic rules and break the academic monopoly formed by publishing houses and some research institutions. ??Although the term "academic monopoly" has been completely discredited due to the non-stop shouting of civil sciences. But that doesnt mean it doesnt exist. Especially after the end of the Cold War, it has been unprecedentedly strengthened. In fact, this itself is a type of invisible hegemony. but ?There is really nothing we can do this time. The challenger is too strong Most papers need to be recognized by journal editors and peers to prove their academic value. As for this paper, peers and journal editors need to find ways to recognize it to prove its academic value. This is like Why is it necessary to give Einstein a Nobel Prize even if he found the photoelectric effect in a roundabout way? Because if Einstein didnt win a prize involving physics, it would most likely be regarded as a pheasant prize... "Professor Benahou just said that the Poincar conjecture is the only possible key to our understanding of high-dimensional space. Now that this conjecture has been proven, does it mean that we will soon be able to make a leap in applications, or at least in basic physics? Is it possible to create a new technological revolution? ??The question this time was from a female reporter from Wired magazine. ? As a media that mainly targets new industries and new technologies, they are obviously more concerned about whether this result can have any real impact. Its best if you can see business opportunities in it. Unfortunately, you may be disappointed. Richard Hamilton shook his head: This paper does involve a series of new topology tools, but it is difficult for us to use them to solve theoretical problems in other fields in a short time. As for putting them into practical applications..." ?He hesitated for a moment: I think you should ask the two authors to verify this question. ??The reporter thought to himself that if I could contact those two people, why would I still be blocking them here... Meanwhile, 12,000 kilometers away. Chang Haonan, who was watching the press conference live on TV in Beijing, suddenly received a series of system prompts. Acquire theoretical level experience: 100000 Theoretical level: LV4: 20000/1000000 Theoretical science is the most powerful weapon for understanding the world. Therefore, after reaching LV4 theoretical level, when you study an unknown phenomenon within your ability, there will be a certain probability that you can see through its essence ? ? ? ?Chang Haonan was half lying on the sofa in a rather awkward posture, but now he sat up suddenly. It is expected that the theoretical level will be improved after solving the Poincar conjecture. But the latter one...maybe it can be called a passive skill. It was indeed an unexpected surprise. In particular, Chang Haonan is not a pure mathematician like Perelman. He is going to do a project. Behind the project, there are many scientific principles that cannot be fully explained. Therefore, this ability, even if it only has a "certain probability", will definitely bring huge benefits in terms of research efficiency. (End of this chapter) Chapter 840 million dollars Chapter 840 Million Dollars ? Later after watching the press conference, Chang Haonan returned to the bedroom and turned on the computer, preparing to send the proof process in three languages ????and an explanatory document that had not been published on arXiv to Tang Lintian as agreed. ??Although he himself was basically sure that his proof process was correct from the beginning, as a serious scientific research institution, Beijing Hang University must wait until the results are confirmed before posting the results. ??If you open the champagne in advance, even if it turns out that the champagne was opened correctly, it will always seem a little unreserved. ?However, the first time he opened the mailbox, Chang Haonan was shocked by the situation inside ?Due to server resource issues, most mailboxes will set a storage capacity limit. At the turn of the millennium, this upper limit was basically at the level of several hundred MB to several GB. ? Considering that emails in this era do not support attachments that are too large, it is generally difficult for normal people to save so many emails. But Chang Haonan did it. When he uploaded the paper to arXiv, he didnt think too much and habitually attached the school email address he used for several previous submissions. The result... It can be imagined. Because I have received too many emails these days. ?His email space is exploding... ?Of course, this does not mean that emails sent after the explosion will disappear. ??If processed in time, it can still be queued in from the server. But its still an exaggeration woc, I made a mistake... I should have registered a new email address at that time... Chang Haonan sighed, "I have never seen this scene before" and began to check whether there was any important content in it. In fact, judging from the sending date, his mailbox was actually filled three days ago. At that time, the final review results had not yet come out. ?Hence, most of the people who sent him emails were people Chang Haonan had never heard of. ?For example, ask a student or researcher from the mathematics department of a certain school if he can explain a certain part of the paper. After all, it is a proof of Poincar''s conjecture. The so-called "concise and easy to understand" method is also compared to the method that took others three years to understand in the previous Perelman. There are still thresholds. ??However, there is no need to reply to this type of email. Because soon someone who can understand will explain it to them. With the exception of this main category, there are no regular patterns in the rest. ??Some are simply advertising, some are promoting newly founded academic journals, and there are even several students from different countries who have sent their personal information and asked if they can study here at Chang Haonan... To be honest, one of them has a really good resume. Furthermore, the other party also stated in the email that although the mathematical community has not yet reached a conclusion, he has read the entire content and is very convinced that the proof process is correct. More importantly, she found that every step in the paper was set up just right, and she could not see the large number of mental jumps in general mathematics papers and the confusing expressions when describing new theoretical frameworks. Therefore, she was very impressed by the author''s unique writing style. I am interested, so I hope to continue studying for a doctoral degree in Chang Haonans research group after receiving my masters degree this year... To be honest, after reading it, even Chang Haonan was a little tempted. ?Its a pity that the nature of his research group is very special and he cannot recruit foreign students casually. However, after a brief hesitation, he did not throw it directly into the recycling bin like other emails. Instead, he wrote a special reply to the student named Mariam Mirzakhani, affirming the other person''s past resume, but stating that mathematics research At present, it is just my personal interest, so I have no plans to recruit graduate students in this direction. ?Originally, he was going to recommend Perelman, another author of the paper, to Mirzakhani, but he gave up after thinking about it. After all, the latter is the master of what the other party calls "jumping thinking" writing style, to the extent that even colleagues would call it outrageous... As Chang Haonan cleared up space in his mailbox, some emails sent in recent days were gradually transferred from the server. In fact, the review team basically understood the entire proof process in just three days. In the next four days, they conducted multiple rounds of repeated inspections and confirmations just because they felt it was too outrageous. ?Just to avoid the situation like Wiles''s, it was not disclosed to the media before the final results were released. But within the mathematics community, it has actually been known for a long time. So, the emails sent to Chang Haonan''s mailbox at this stage already contain a lot of heavyweight content... They are really positive ?Chang Haonan looked at the four web pages arranged in a 2*2 arrangement in front of him with a bit of laughter and tears. The above are the invitations for manuscripts sent by the four major mathematics journals to himself and Perelman at almost the same time. The content, without exception, is all about the proof of Poincars conjecture. In fact, normally speaking, although there is competition between different journals, considering the image problem in the academic circle, they will not take away food from their friends. ?It looks too ugly to eat like that. So in the first few days, everyone thought that this paper had been submitted elsewhere, so everything was fine. But after realizing that the paper was not actually submitted, the situation was completely different - ?Everyone can predict that this paper will be cited by dozens or millions of later generations, just like the paper by Watson and Crick that discovered the double helix structure of DNA. Even the top journals cannot completely ignore the impact factor brought about by this terrifying number of citations. In the end, of course, he still didnt reply. ??? But I took a screenshot of this famous scene, and then collected these four emails... ? ? ? It can be regarded as an unprecedented achievement, and it is difficult for others to achieve it in the future... ?In this way, it was not until this afternoon that Chang Haonan finally sent the planned email to Tang Lintian. Then, I received a reply from the other party almost immediately. ?Only one short sentence. Your mobile phone has been out of reach for several days. Chang Haonan finally came back to his senses. Why do I always feel like something is not quite right today Normally, when this kind of news comes out, there should be countless calls coming in. But the place where Chang Haonan lives is quite special, so the phone number at home here, even if it is an outside line, is only known to a very small number of comrades in the Science and Technology Commission system and a group of comrades who are responsible for providing logistical support. Since he started to retreat last month, he has never taken care of his mobile phone again. Even though the battery life of current mobile phones in standby mode is quite exaggerated, they have been out of power for a long time... ?Thinking of this, Chang Haonan hurried downstairs to the living room to charge his mobile phone that had been turned off. The first person to call was Tang Lintian. Are you watching the press conference? Once connected, the other party got straight to the point. "Well" ?This question made Chang Haonan stunned: Isnt it already over a long time ago? ??He obviously finished reading the interview before going upstairs to reply to the email. No, you are talking about the interview with the review committee this morning. That must have ended long ago. ?Tang Lintian explained: This is a press conference held by the Clay Mathematics Institute, the same organization that announced the bounties for the seven major mathematical problems of the millennium... CCTV 9 (CCTV9 is still an English channel at this time, not a documentary channel) is broadcasting the entire event. ?Chang Haonan suddenly became interested. One million US dollars or something, for him now, it is secondary. The key is that he wants to see the other party''s reaction. ??He also read some newspapers in the past two days and found that the day he uploaded the paper to arXiv happened to be the same day when the institute released the reward... Turn on the TV. ?Appearing on the screen are the sponsor of the Clay Institute, Langton Clay, and the director, Arthur Jeff. The two of them are surrounded by a group of microphones. The reporter just asked the most critical question. Thats the reward. ??Does it count? After all, this is such a coincidence. ?Many people have speculated whether the Poincar conjecture will be eliminated and a new one added. ??When he heard this question, the muscles on Langton Clay''s face twitched visibly. One million dollars. Its not that he cant afford the money, but he is really not mentally prepared at all now. ?According to Arthur Jeff, it would be difficult to solve all these seven problems in the next century. It would be quite good if someone can solve one within 10 years. And spending money is secondary. Mainly a slap in the face. At the Millennium Mathematics Conference, Jeff directly performed a physical act that made him unable to get off the stage. It''s just that it''s uncomfortable to feel uncomfortable. Clay still has to have a face. Cant not give it. ??And judging from the results alone, the impact of this coincidence on the research far exceeds the value of one million US dollars. Therefore, he adjusted his mentality slightly and replied in a deep voice: I have to say, this is indeed a wonderful coincidence. Perhaps from a legal perspective, whether the proof of Poincars conjecture meets the scope of the reward is a question that can be discussed, but personally, I prefer to understand this coincidence as an arrangement of fate. "Therefore, the Clay Institute will recognize the validity of this reward and, in accordance with the previously agreed terms, will officially award 1 million to the two authors one year after the proof is submitted, that is, on May 24, 2001. Dollar bonus! (End of this chapter) Chapter 841 Ask me to be the editor-in-chief? Chapter 841 Ask me to be the editor-in-chief? I have to say that Clay knows how to publicize. ?His statement, coupled with the recent back-and-forth campaign and the million-dollar stunt, directly elevated the award he established for the Seven Millennium Problems to a household name. ?At this time, no matter what, the mathematical community must pay attention to it. After all, there is no Nobel Prize in mathematics. Although almost more than half of the Nobel Prizes in Economics were awarded to scholars in the field of mathematics, people once thought that the Economics Prize was compensation for mathematicians. Although it includes but is not limited to the Wolf Prize and the Fields Medal, it claims to be the "Nobel Prize in Mathematics." However, after all, the Nobel Prize does not include a mathematics prize. Perhaps mathematicians can ignore this. But not in mathematics In fact, most mathematicians just pay lip service and dont care. Correspondingly, the reputation of the Clay Institute has been raised to the level of the world''s top academic institutions. ?Of course, its just fame. In terms of strength, it is obviously not that interesting at the moment. ??But when it comes to research, to put it bluntly, its just people plus money. Theoretical mathematics may not have immediate results compared to other fields. But at least it is positively correlated. ?With enough fame and an investor willing to spend money, the take-off of the Clay Institute is basically a certainty. Its just a question of how high it can fly. Professor Chang, I would like to congratulate you in advance for being the first scholar to receive this reward. While watching TV for a few minutes, Chang Haonan did not hang up the phone. So, after Clay answered this question, Tang Lintian immediately congratulated him. Ouchthings outside the body, things outside the body ?Chang Haonan put the phone to his ear again: Besides, you know my situation, so you probably wont accept the award... At this point, he muttered in his heart: Perelman should not But Tang Lintian gave a different answer: "Hey, Professor Chang, according to my guess, unless you explicitly refuse to accept the award, this Langton Clay will probably send you the award even if he hears that you are not going to accept it." Chang Haonan thought it was a bit outrageous at first, but after thinking about it carefully, it really made sense. From the perspective of making big news, a normal award ceremony is obviously too bland. Even a year later, people who eat melons may not still remember such a thing. But the plot of "the mathematician is indifferent to fame and fortune and is unwilling to attend the award ceremony, and the sponsor keeps his promise and presents the award in person", no matter what the final result is, the story is definitely full of interest. ??If it were left to the BBC, they would probably be able to make a documentary series... After chatting about other things for a while, Tang Lintian took the initiative to end the call. In his words: Today your time belongs to many people, I cannot monopolize it Sure enough, just as Tang Lintian expected. ?Chang Haonan just put down his cell phone. Haven''t even had time to pour myself a glass of water. The second call came in. Congratulations, Professor Chang! ??The voice on the phone was a little distorted, so that Chang Haonan didn''t recognize who it was for a while. Fortunately, the other party did not just say this sentence: When I was defending my thesis last year, I was still a little surprised. Why did Principal Tang insist on finding someone who had done mathematics in my past? Now it seems that Old Tang is still far-sighted..." You are now a blockbuster. It is no exaggeration to say that you have pushed the entire Chinese mathematics community forward by 20 years. I heard it now. Yuan Xiangya. The Chinese mathematics community had a brief period of glory, but after the Zhejiang University School of Chen Jiangong and Su Buqing, and the Chinese Analytical Number Theory School of Hua Luogeng, it has indeed not made any decent noise for decades. Until a week ago. ?In the past seven days, China''s name has appeared more often in relevant discussions in the international mathematics community than in the previous 20 years combined. "Dean Yuan, this...is really an award..." ?Chang Haonan is not modest either. The result of proving the Poincar conjecture is of course very important, but for now it is still an isolated case. In terms of influence, unless he really cultivates a group of students in the future, it is still impossible to compete with those prestigious schools based on individual achievements alone. Yuan Xiangya naturally made this call not just to congratulate Chang Haonan, so after a round of greetings, he quickly got to the point: "Professor Chang, it''s like this. Our academician Yang Jue from the Institute of Mathematics and Systems Science has always had the idea to establish a mathematical journal that belongs to China and has a certain influence. However, he has been unable to find enough journals before. An influential scholar serves as the editor-in-chief, so he commissioned me to ask you if you are interested in this matter?" ??Although Yuan Xiangya is not yet an academician, he is already the vice president of the Academy of Mathematics and Systems Science This is actually quite normal. As mentioned before, academicians have a fixed quota and are promoted on a first-come-first-served basis. They can only be removed if they die or have major problems. Not only China, but also the academies of sciences in all countries basically follow this logic. ?It is impossible to squeeze others out just because your contribution is greater than others. Then everyone is in danger. In this way, if all the academicians of a certain academic department are in good health, there will be no attrition for many years... You can only wait in line. Faced with Yuan Xiangyas question, Chang Haonan did not immediately give an answer. In fact, establishing Chinas own top academic journals, and even establishing Chinas academic system, is something Chang Haonan has been thinking about a few years ago. But his idea still starts from engineering, or natural science in the narrow sense (physical science + life science). Compared with theoretical mathematics, these two directions are also what Chang Haonan is more interested in and is better at. Dean Yuan. After about a few minutes, Chang Haonan spoke again: Do you think that in the field of theoretical mathematics, even if I serve as the editor-in-chief, and even if we can publish bimonthly or even quarterly journals at the beginning, can we really produce a sufficient number of high-level mathematics papers? Without waiting for Yuan Xiangyas reply, he continued: Perhaps one or two issues is okay in a short period of time, but it is difficult to continue... In this way, if the quality of subsequent articles drops significantly, it will only have the opposite effect, right? "Um" Yuan Xiangya remained silent. Obviously, Chang Haonans concerns are right. ?However, with such a once-in-a-lifetime opportunity, it would be a pity not to strike while the iron is hot. ?A few years or more later, even if Chang Haonan is still appointed as editor-in-chief, the appeal will be completely different. ?It is impossible for another genius to solve another millennium problem by then, right? Professor Yuan. Just when Yuan Xiangya was in trouble, Chang Haonan suddenly changed the subject: Actually, I also think that this opportunity is very good. "Um?" Although the former was a little confused when he heard this, he could still tell that there was something to be done. We dont necessarily have to limit our sights to theoretical mathematics. Chang Haonan came directly and said: Why not refer to "Nature" or "Science" and focus on multiple scientific fields?" Yuan Xiangya was shocked: Isnt it more difficult? "If we want to replace "Nature" or "Science", it is indeed more difficult, but we are just getting started after all, and the goal should be more conservative." Chang Haonan explained: The first step is to keep our journal in the middle or upper reaches of SCI. In addition to the impact factor, at least it cannot be a water journal. The second step is to consider joining the ranks of top international journals... The third step, Finally, if all of the above are achieved, then we can consider challenging the entire SCI evaluation standard and establish our own academic system. After a lot of painting, Yuan Xiangya couldn''t listen directly. Thisis a bit Even though Chang Haonan said to be "conservative", it was obvious that only the first step was barely conservative. The content that follows is truly wild. Like "challenging SCI evaluation standards". He has not even thought about it, let alone planning. But I never thought about it in the past, that was a thing of the past. Now being mentioned like this by Chang Haonan... ?This cake is so delicious! (End of this chapter) Chapter 842 Which academic department is the academician of? Chapter 842 Which academic department is the academician of? ?Once he accepted the setting given by Chang Haonan, Yuan Xiangya could no longer contain his thoughts. In fact, his own research direction is more towards applied mathematics. It just proves that the big news of Poincar Conjecture still belongs to the category of theoretical mathematics at least for now, so his previous thinking has been limited to this area. ?Thinking about it now, multi-scientific fields are indeed more promising. In particular, the country is gradually increasing its investment in the fields of ocean, aerospace, geology, aviation, etc., and while these investments are transformed into physical products such as submarines, rockets, satellites, and aircraft, they will also inevitably become excellent in the field of natural sciences in the narrow sense. Test platform. I dont dare to say how many earth-shattering results can be produced that will change the times, but it will certainly be no problem to meet the mid- or upper-middle SCI mentioned by Chang Haonan just now. ??And it is definitely not the kind of water-filled article about "changing the matrix of polymer materials". That is to be published anyway. Instead of taking advantage of others, it is better to take advantage of being close to the water and keep at least part of it in the country. ?Thinking of this, Yuan Xiangya hurriedly requested: Professor Chang, since we have already talked about it, why dont you just think of a name for this new journal? In fact, what he first thought about was to ask Chang Haonan to write an inscription. But considering that firstly, the words written by the other party''s science and engineering professor may not be good-looking, and the title will not reflect well on both sides. Secondly, since it is a journal for the world, the title must at least have an English version and an inscription. Its even more unnecessary So when it came time to say it, it was changed to naming. "name" ?This completely unexpected request really made Chang Haonan a little confused for a moment. If you use that concise style, it will be almost difficult to surpass the two mountains of "Science" and "Nature". It does not refer to academic value, but to naming. The main reason is that apart from these two words, it is difficult for the remaining words to have an all-encompassing effect. ??If you call it "Earth", it sounds like a geographical science magazine. ?It''s called "Universe", and it sounds like it''s about astronomy. It can''t be called "Tao". So I had to change my mind... By the way, I remember our Chinese Academy of Sciences doesnt have a journal yet, right? Chang Haonan asked. Yuan Xiangya understood what he meant instantly: No, there is only one Journal of the Graduate School of the Chinese Academy of Sciences, published biannually, and it is not restricted to any field at all, and its influence is not very great. There is no restriction on fields at all, which means you can apply for liberal arts and sciences. This is due to historical reasons. ??The Chinese Academy of Sciences was originally an all-encompassing institution. Even once assumed the functions of the National Science and Technology Commission. The Chinese Academy of Social Sciences was originally the Department of Philosophy and Social Sciences of the Academy of Sciences. ?Although it became independent as early as the late 1970s, it still maintained inextricable ties until the 1980s and 1990s. So, its better to just take over the name and call it Journal of Chinese Academy of Sciences, JCAS. ??This name sounds a bit like JACS, but there''s nothing I can do about it. The words "journal, science, and academy" go back and forth in just a few combinations. Fortunately, although JACS is already considered a top journal today, it is not as well-known and almost all-inclusive as it was more than 20 years ago. So there should be no suspicion of being too popular. "Um" On the other end of the phone, Yuan Xiangya looked at the phone in hands-free mode, holding his chin with one hand and tapping the table rhythmically with the other hand. The name itself is not a problem. But the key point is that no matter what the journal is called, the name of the editor-in-chief must be Chang Haonan. And "Journal of the Chinese Academy of Sciences" is such a naked name. ??The editor-in-chief is not from the Chinese Academy of Sciences... Seems a bit outrageous. ? Even if I change my name, I wont have the feeling of being NTR. ?He pressed the mute button and looked at Academician Yang Jue, the dean of the Institute of Mathematics and Systems Science, who was sitting on the sofa on the other side of the office. What do you think of this name The latter obviously knew what Yuan Xiangya was thinking, and immediately waved his hand: "It''s okay. Now several departments are almost fighting in the field of disciplines who always belong to Professor Professor. Looking at this posture, I estimate that up to two or three years, he will become our people ..." "Just get on the bus first and then Supplementary votes Although Yang Jues idea of ??publishing a pure mathematics journal was rejected by Chang Haonan, his most fundamental purpose was achieved. Furthermore Science can change the world. Mathematics can change the world by changing science. As long as the definition is flexible enough, I can also be a member of the natural sciences... Yuan Xiangya pressed the mute button again: Professor Chang, we support your suggestion in principle. Of course, the final result must be decided by the Academy of Sciences... After another polite conversation, this time Chang Haonan took the initiative to end the call. Academician Yang, so many academic departments are competing, dont you have any plans to follow suit? Yuan Xiangya raised his head again: After all, although Professor Chang has made many achievements and covered a wide range of topics, it is this time that he has been able to publish a special book. Furthermore, the International Congress of Mathematicians will be held again the year after next. Our capital city has been among the candidates for the venue. After this incident, it is basically a certainty. I am afraid that the Philippine Prize will also..." He did not put his words too directly. But its enough. ??The International Congress of Mathematicians is held in rotating locations in major cities around the world. ?Perelmans city, Moscow, had already opened it in 1966 and will not be included in the candidates. In this way, Beijing clearly has huge advantages over its other three competitorsMadrid, Bangalore and Seoul. ?On the other hand, Chang Haonan and Perelmans Philippine Awards are almost undisputed. There are still two years from now to 2002, and the time buffer is sufficient. so There is a high probability that the Fields Medal will be awarded to a local Chinese scholar at the first International Congress of Mathematicians held on Chinese soil. This is definitely an explosion of influence. It is also a huge benefit to the Department of Mathematical Physics Fields Medal. Have it stamped? ????????????????????????????????????????????????? Professor Yuan, you have to think about this carefully. ??Yang Jue did not immediately answer Yuan Xiangya''s question, but looked at the latter with a half-smiling expression: No matter which department Professor Chang enters, he will definitely jump in. So if he comes over, then you have to stand in a row further back... In recent years, Yuan Xiangya has put a lot of effort into the matter of becoming an academician. Whether academically or socially. ??For this reason, I also had some conflicts with several candidates with similar conditions. ?Although everyone wont say this explicitly, they definitely see it. Whats more, as the dean, Yang Jue. Suddenly asked such a straightforward question, Yuan Xiangya didn''t know how to answer it for a while. After about half a minute, I finally organized my words: Im only 40 this year, so its still... He originally wanted to say that he was still young and could afford to wait, no less than three to five years. But when I thought about it, it seemed that Chang Haonan was even more outrageous. Even if calculated according to 2003, he was only 28... So I had to skip this paragraph: Anyway, if Professor Chang can come to our department, it will be a great thing for everyone in the Chinese mathematics community, including me and those few people. I can still clearly distinguish the stakes. (End of this chapter) Chapter 843 Me and my big boss mentor Chapter 843 Me and my boss mentor On the other side, after ending the call with Yuan Xiangya, until late that night, Chang Haonan received congratulatory calls from a series of acquaintances such as Fang Zhen, Du Yishan, Yao Mengna, Xu Yang, Guo Lin, etc. In the meantime, Ding Gaoheng invited him to his home for dinner. He couldn''t even sleep for long. Fortunately, he had had enough rest in the previous week. Thanks to the ability of "storing sleep time" gained by Chang Haonan after his rebirth, this night was not bad. ?Actually, he wanted to rest for two more days, after all, he was going to be extremely busy in the second half of the year. ?However, there was one thing in the end that forced him to suspend his vacation plan Li Yabos graduation defense. ?Chang Haonan uploaded the paper to arXiv on May 24, and another week and one day passed. ?Now, the graduation season has officially entered... ?So, early the next morning, Chang Haonan finally appeared in the office of the computing center. ? ? Thanks to his status in the military industry system and his exceptional security level, his specific daily schedule and travel methods will not be disclosed casually. Wont even repeat the same route for a long time. ?However, when it comes to keeping things secret, as long as you dont directly build a separate city in a deserted place like you did with two bombs and one satellite, you are destined to be unable to reach the limit. So, although Chang Haonan didn''t attract much attention when he came to the school, Tang Lintian hurriedly appeared at the door of the office before he could warm up his butt. Professor Chang, you are willing to come to school... ??Tang Lintian was holding a bulging briefcase in his hand. Before he entered the door, a voice came from outside: "You don''t know how many times people who can''t contact you have called me in the past four or five days. Now I don''t have to do anything else when I go to work every day..." As he spoke, he pulled up a chair and sat across from Chang Haonan. ?Although he was complaining on his lips, judging from his rosy expression and the corners of his mouth that couldn''t be lowered, he must actually be enjoying it. Theres no way, youre the principal. Chang Haonan also replied jokingly: Even if they can contact me, apart from expressing congratulations, if there is anything else, in principle, they still have to go through...or at least inform the school. When Perelman visited and returned to China at the speed of light before, causing some minor public opinion turmoil, Ding Gaoheng specifically told him that he would hold a meeting for schools under the Science and Technology Commission system to formulate a mechanism to deal with similar situations. In general, when facing major public opinions, no matter good or bad, the school should take the initiative first. After the situation becomes clear, the next step will be decided based on the personal wishes of the frontline researchers - ?This is why Tang Lintian rushed over as soon as he heard Chang Haonan arrived at school. Professor Chang, I have asked the office to list some interview applications from general media and invitations for academic exchanges that are not very important. He took out a folder from his bag and put it in front of Chang Haonan: Take a look and see if there is anyone here who needs to participate. If not, I will reject them all in the name of the school. The latter opened the folder and took a casual look. Indeed, as Tang Lintian said, they are all dispensable activities. ??However, this outrageous thickness made him feel a little frightened. ??If this all comes directly to oneself, then Im afraid I wont even be able to carry out normal work. For a moment, Chang Haonan even felt a little admired by Tang Lintian in front of him. Theres nothing you need to participate in, so lets just do it all He closed the folder again. ?Tang Lintian nodded casually, not even taking the folder back In fact, this result was within his expectation. Just out of respect for the teaching staff, the school must not overstep the mark. What comes next is the key. In addition to these things that are easier to get rid of, there are two other things. ?Tang Lintian said as he put the briefcase next to him: One is that CCTV will conduct an exclusive interview with our school again. "Of course, I say it''s for our school, but it''s actually for you, so I still have to trouble you to show your face. It doesn''t need to be long, just two or three minutes. It''s mainly to introduce the concept of the Poincar conjecture and solve this problem. meaning. Of course thats no problem. As long as it is within a reasonable range, Chang Haonan is still willing to cooperate in some publicity. These days, Chinese people really need something that can make them stand up. After all, most people who eat melons are ordinary people. What kind of feedback they give depends entirely on what kind of guidance they receive. ??Its hard to maintain a positive attitude when the news is all about depressing news all day long. Speaking of whichPrincipal Tang. After a short pause, before Tang Lintian could say the second thing, Chang Haonan suddenly changed the subject: The main body of TV programs is still the masses. Isnt the concept of Poincars conjecture a little abstract? Well its indeed abstract. ?Tang Lintian looked deeply convinced. When Chang Haonan said that he was solving the Poincar conjecture, he also specifically checked the information on this matter. It took me a long time to figure it out in the end. Ordinary people without any mathematical foundation may find it even more difficult to understand. But this is the request of the propaganda department, so we can just comply with it. ?Tang Lintian explained: Furthermore, most people dont really need to understand the Poincar conjecture, as long as they know that this thing is very difficult..." Thats right. Chang Haonan smiled and nodded: Looking at it this way, I think I should explain it a little more complicatedly... ? ? "It''s not impossible..." ? ? After all the joking, Tang Lintian finally returned to the topic: The second thing is that I was contacted by the Chinese Mathematical Society and invited you to attend the annual academic meeting at the end of this year and present the 6th Zhong Jiaqing Mathematics Award. Zhong Jiaqing Mathematics Award? Chang Haonan is not a mathematics major after all. He only knows about the Chen Shengshen Mathematics Award and the Hua Luogeng Mathematics Award in China. Yes, this is an award specifically given to outstanding graduate students majoring in mathematics. Graduates of the current year and the past two years can participate. ?Tang Lintian explained. In fact, he had never heard of this award before, but after checking it later, he found out that it was actually one of the three major mathematics awards in China: Originally, the Mathematics Society wanted to teach you one. After all, as a graduate within two years, you just graduated last year, so you still meet the requirements. However, first of all, your doctoral thesis is not in mathematics, and secondly They also feel that it would be a bit unqualified to award you this award now...so they decided to wait until the next Shengshen Chen Prize in Mathematics, and this time they will invite you as a guest first. Speaking of this, Tang Lintian smacked his lips with emotion Others only worry about whether they are qualified to judge a certain award. ?When it came to Chang Haonan, it became that he had to consider whether he was qualified for a certain award and give it to him... If its held in the capital, its okay to attend by the way. ?Chang Haonan thought seriously for a while and then replied: But if its in other cities, I wont make a special trip there. Dont worry about this. ?Tang Lintian waved his hand: Under normal circumstances, the annual meeting will only be held in November. Even if the original plan is not to be in the capital, with your words, they will have to move here..." ˡ While the two of them were chatting, there was another knock on the door. Please come in. The computing center originally had a separate access control, so everyone who could get to the door of Chang Haonan''s office must know someone. The door opens. ?After half a second, Li Yabo carefully moved in from the outside: Congratulations to the teacher As soon as he said hello and before he finished his congratulations, he saw Tang Lintian sitting opposite Chang Haonan: Uhshould I wait outside No, no, no ?Chang Haonan called the other party over: Your graduation thesis should have been sorted out, right? Its sorted. ?Li Yabo took out a printed and bound paper from his schoolbag: Take a look. Is this the undergraduate student you brought? ? Tang Lintian has resigned as the dean of the School of Aeronautical Science and Engineering after he officially took office as the principal, so he doesnt know the students that well. Yes, its called Li Yabo. After Chang Haonan finished speaking, he introduced Li Yabo: This is Tang Lintian, Principal Tang. It is completely normal for college students not to know the school leaders. Whats more, Tang Lintian was not the principal when Li Yabo entered school. Hello, Principal Tang. Hey, hello, hello. ?Tang Lintian responded enthusiastically. Then he looked at Chang Haonan: Has his defense committee been arranged? "ah?" The latter was so shocked that he almost dropped his paper: Isnt it necessary for the college to organize a unified defense defense for undergraduate students? Normal undergraduates, of course. ?Tang Lintian replied naturally: But thinking about the situation when you graduated, there are still exceptions..." I graduated that year, wasnt it also organized by the unified organization? It has only been three years since Chang Haonan graduated as an undergraduate, so his impression is quite profound. Of course it is on the surface, but if you think about it, how can two academicians come to a normal undergraduate defense... So it is actually specially arranged for you. "Um" Chang Haonan looked back and thought it made sense. "Now that your student has to defend himself, the standards...can''t be any worse than those back then, right?" ?Tang Lintian looked at Li Yabo with what he thought was a kind and kind look. But the latter felt a little chill on his back and couldn''t help but take a step back. Well, the two of us, as well as Academician Liu Zhenxiang, who is from our school, and Academician Wang Yuanguang, and Academician Huang Yunbo, who was just elected this year, happen to be in the capital, so Ill invite the two of them over..." Li Yabo next to him slowly widened his eyes after hearing this ?What is this? I just graduated from a bachelor''s degree. There are three academicians here? Real or false? (End of this chapter) Chapter 844 Capacity allocation of turbofan 10 Chapter 844: Capacity Allocation of Turbofan 10 No matter what Li Yabo thinks, the candidates for the defense review panel have been decided. That is, after Chang Haonan graduated last year, Du Yishan officially retired to take care of his old age, otherwise he would have to raise another one... "teacher" After Tang Lintian left, Li Yabo, who was numb, came to Chang Haonan''s side with a frightened expression on his face: I just graduated with a bachelors degree, so this is... Dont worry too much, just prepare normally ?Chang Haonan was looking down at Li Yabo''s paper at this time, and replied without raising his head: The content of your thesis is not a big problem for anyone who has graduated with a masters degree. No matter who comes, it will not be difficult for you. ? No matter whether you are an undergraduate or a master or doctoral student, the key to passing your graduation project is blind review. ?Blind review is no problem. As long as the defense process is not particularly outrageous, you will not be stuck in graduation. At best, its just ugly on stage. Of course, thats what it says. As a person involved, Li Yabo should definitely be nervous. ?Especially since he plans to continue his studies after graduation, he must still get a good evaluation for his thesis. Lizi, why is your face so white? After returning to the dormitory, a roommate quickly discovered something was wrong with Li Yabo. Its time to answer the question, Im nervous. The latter was lying on the bed, looking like he was unconscious. Im going...are you still nervous? Another roommate joked in an exaggerated tone: Didnt your boss just come up with an earth-shattering result? Thats right, the review teacher cant make things difficult for you even if its for his own sake, right? Besides, undergraduate thesis, isnt it just a matter of doing it casually, going through the motions and then waking up ? A few people talked to each other, and the topic gradually changed from Li Yabos mentor to their respective graduation projects. Even their respective futures. "well" Li Yabo, who was lying on the bed, sighed. Obviously, his roommates still dont know what kind of devil-level lineup they will face... Anyway, you guys...especially Lao Bai and Wu Pangqian are going to graduate school...I still suggest you prepare well..." Soon, the day of defense came. The oral defense for undergraduate students is different from that of graduate students. Students in a college are divided into several groups, and each group corresponds to the same group of oral defense teachers. The whole process basically lasts from the morning to the afternoon of that day. So, as one of the judges, Chang Haonan got up very early that day and arrived at the school about an hour early. However, there were still many people standing in the corridor. After all, June has entered, which is also the peak period for graduate defense in addition to undergraduate students. In the crowd, Chang Haonan happened to meet a familiar face. Zhou Shuwan. At this time, the other party also noticed him. Professor NanChangChang, what are you The moment he saw Chang Haonan, the most terrifying possibility flashed through Zhou Shuwans mind My former classmates are going to be my defense judges... Oh, Im here to see how the undergraduate students are doing their defense. Zhou Shuwan breathed a sigh of relief. However, Chang Haonan asked again. What about you? I remember your research teams laboratory is not here, right? "I" ?Zhou Shuwans eyes darkened, and his expression suddenly became unbearable: Of course Im here for my graduation defense ?Chang Haonan swore that he had indeed forgotten. ?It takes three years to graduate from a bachelor''s degree. According to the normal progress, isn''t that the graduation defense for a master''s degree... ?This is really a bit embarrassing. Then...will you continue to study for a Ph.D.? He quickly changed the subject. Definitely have to read it. Zhou Shuwan also knew that Chang Haonan could not have done it on purpose. He adjusted his mentality slightly and nodded: In the area of ??aviation life-saving equipment, our country has rarely even conducted systematic research before. It was only gradually developed after the introduction of the KD36D ejection seat with Project 11 in the past two years. It is when manpower is needed. The J-11 series fighter jets use HTY8, which is 100% restored according to the K36D drawings. Naturally, its performance is as world-class as the former. ?However, the ejection seat needs to be adapted to the aircraft, so there is no way to directly move the HTY8 to other domestic aircraft. Tactical aircraft are okay. The HTY5 equipped with the J-10 is slightly inferior to the HTY8 in terms of ultimate ejection speed, but it is at least a decent third-generation ejection seat. As for large aircraft, such as the H-6, the situation is not very optimistic. ??Even maintains the "glorious tradition" of crew members ejecting downwards. So, as Zhou Shuwan said, there is still a long way to go in this regard. Just when the two were about to end their chat, a voice suddenly came from behind Chang Haonan. Sounds a little familiar. Mr. Chang. Chang Haonan turned around. It was discovered that it was Liu Gaozhuo. The commander-in-chief of Project No. 11. ??Although he doesnt have as many contacts with Chang Haonan as he does with He Ming, who is in charge of production, they are still old acquaintances. You were also invited here... to serve as a defense reviewer? According to regulations, the defense committee of a graduate student must have members from other units. Just like when Chang Haonan defended his doctoral thesis, he invited Yuan Xiangya and Qian Lao. Mainly come to the meeting and be a judge by the way. While speaking, Liu Gaozhuo also noticed Zhou Shuwan who was opposite Chang Haonan: Hey, it seems that he is here to be the judge... Then he turned his attention to Chang Haonan: "you" Classmates, classmates After some explanation, Liu Gaozhuo finally understood the rather complicated relationship between the two. By the way, Mr. Chang, there is something I want to talk to you about alone after the defense is over. ?Before walking into the conference room opposite, Liu Gaozhuo walked next to Chang Haonan and whispered. The latter was stunned for a moment, then nodded: "Can." But it may take me a little longer. You can meet me at the computing center at four oclock in the afternoon. The process of Li Yabos defense was smooth sailing. There was no situation where Chang Haonan argued with the Confucian scholars on his behalf ??If he couldn''t handle even this small scene, Chang Haonan wouldn''t have been able to recruit him in the first place. ?However, this was a hardship for the other people in the same group as Li Yabo. Especially two of them who are also preparing for further studies. ??On normal days, when encountering a more acute problem, the teacher would dare to stand up and help with a few words. And now this scene... Three academicians, one president, and another Chang Haonan. Shaking.jpg To sum it up, its Reply and defend, just answer and not defend. Once you ask a question, apologize like crazy... ?Of course, I gave it all in the end. after all Graduating from an undergraduate degree is simply not a person. ??Furthermore, for Jinghang students, no matter how hard they paddle, they still have a bottom line, and there are no particularly outrageous situations. After the entire defense process, Chang Haonan first asked Tang Lintian to send Wang Yuanguang and Huang Yunbo to the canteen of Torch Group, while he went back to the office alone. Liu Gaozhuo was waiting there as promised. Mr. Liu, what you said during the day was... The two of them sat down on the two sofas respectively, and Chang Haonan asked straight to the point. Mr. Chang, thats it. Liu Gaozhuo explained: In accordance with the needs of the Air Force and in conjunction with the progress of the Project 11 improvement project, we are prepared to deliver six trial production batches of J-11B fighter jets to the Air Force for early use in small batches. Thats a good thing. ?Chang Haonan filled the other partys glass of water: Whether its the aircraft itself or our power, if the Air Force is willing to accept small batch trials, the progress will be much faster. Liu Gaozhuo was holding a cup in one hand and arranging his hair with the other hand awkwardly: The main thing is... our factory wants to try our best to hand over these aircraft before the end of this year, but the comrades at Liming said that by December, we can only provide up to 6 turbofan 10A engines. Look at this..." Chang Haonan understands. This is to ask for production capacity. Because Project No. 10 and Project No. 11 are being advanced at the same time, and both require turbofan 10 as power, the already low production capacity is even more stretched. ?Especially after entering 2000, the J-10A built two new single-seat aircraft, 03 and 04, and a two-seat prototype aircraft 05. Counting backups, the demand for the turbofan 10B increased immediately. The production capacity allocated to model A will naturally be reduced. "well" After thinking for a while, Chang Haonan sighed and replied: "Mr. Liu, let me tell you directly. In the second half of the year, the total output of turbofan 10 will be 10 units. Project 10 has three prototypes under construction. That''s 3 units. There will always be backup engines. One unit is left, so the production capacity of these six 10A turbofans has indeed come to an end. We are all brothers, so there is no way I can cut off their supply for Project No. 10 Speaking of this, Liu Gaozhuo realized that he really had no choice in terms of production capacity allocation, so he had to ask tentatively: Then...can we consider expanding production? Chang Haonan shook his head: "The production capacity of Turbofan 10 cannot increase, mainly because the special-shaped air film holes I originally designed for the turbine blades and turbine disk were really too complicated. The current combined electric spark-abrasive flow process requires long working hours, and there will be more to come later. It requires manual processing by experienced masters to reach the standard, but there are only so many masters..." Its not that I dont want to expand, its just that I cant expand... Since China''s high-temperature alloy materials are not up to standard, in order to ensure sufficient temperature in front of the turbine, an extremely complex internal structure of the air film hole has to be designed for the hot end component of the turbofan 10 - Even more complex than the hole pattern used by China on the turbofan 15 in the previous generation. After all, the latter, as an engine in the 2020s, can already use quite advanced high-temperature alloys. The design difficulty is actually much smaller. The cost...is that it is quite difficult to ramp up production capacity. From the production of prototype No. 01 to the present, although the overall process has been improved for several rounds, the total output has not improved much because of the speed-determining step of "master craftsmanship". With no previous life experience for reference, Chang Haonan could only move forward step by step. This was one of the main reasons why he decided to get involved in computational materials science. (End of this chapter) Chapter 845 The evolution of the M88 engine Chapter 845 The Evolution of the M88 Engine The two of them chatted for half an hour, and finally Liu Gaozhuo had no choice but to accept the reality: It seems that the trial production batches can only be delivered next year ?In addition to the fact that phased array radar has not yet been used, and the data processing capabilities of the airborne computer are still relatively limited, the J-11B has almost reached the level of the third and a half generations currently being developed by various countries. So Liu Gaozhuo originally wanted to give the Air Force, and of course his superiors, a surprise to welcome the new century before the end of this year. But this plan can only be postponed. Dont be too discouraged. Even if it is delivered early next year, from a time perspective, it will be considered a gift for the new century. Chang Haonan could only comfort himself. The 21st century starts in 2001, so as long as it doesnt take too long, it makes sense. Sigh...its true that we are a little anxious. Liu Gaozhuo nodded: If you think about it carefully, although it is an improved model and many subjects have been verified by Su-27SM in advance, the current efficiency is already very fast..." The J-11B only made its official first flight after the National Day last year. However, because of the existence of the Sukhoi isomer model, it is equivalent to a total of 6 aircraft from the two countries flying at the same time. Only the airborne equipment and weapon systems need to be separated. Independently verified. The entire test flight process is much simpler than that of new aircraft or even major facelifts such as the J-10A. Its normal to feel anxious. Now that they have finished talking about the business, Chang Haonan stood up and prepared to leave the office with Liu Gaozhuo: "Think about four years ago, when we saw the F14 in the southeast, we had nothing to do with it. Although there were a lot of achievements in the following years, the main combat models that were truly transformed into combat effectiveness were the J-8C and J-11. I really cant relax mentally yet ??The latter also followed Chang Haonan''s footsteps. While waiting for Chang Haonan to lock the door, he said in a relaxed tone: "But speaking of which, before coming here this time, Mr. He and I both felt that you could definitely help us overcome this trouble." HeyIm not a machine Chang Haonan originally wanted to say that he was not a Doraemon, and he could find everything in his magical pocket, but then he thought about it and was not sure whether Doraemon had been introduced to China these days, and even if it had been introduced, Liu Gaozhuo would probably be older than him. I havent seen it, so I have to change my story: Its not Aladdins magic lamp. Just make a wish on it and youll get everything. Before today, I really thought you were In the following period of time, Chang Haonan finally realized what the trouble of being famous is ?Many of his previous achievements were either not very eye-catching, or it was inconvenient to promote them. But this time its completely different. The reputation in the field of theoretical mathematics is worthy of a special mention. By the way, you can also find out what is going on with Chang Haonans incredible resume. A mathematician. What happened to getting good grades in your 20s? ??Whats wrong with cross-border efforts to develop algorithms and software? It would be reasonable to study numerical calculations again, right? In the eyes of most people, the identity of a mathematician is basically equivalent to that of a magician, and they would not think about it in any further detail. ?However, doing so also brings some side effects. Although the school has turned down most of the invitations for him, there are still many people who can contact him directly. Not to mention anything else, there are dozens of well-known universities at home and abroad that have invited him to give lectures. As well as various top conferences, academic forums, honorary degrees... Even the French Academy of Sciences, which had been in the spotlight because of that paper, contacted Chang Haonan through Jean-Christophe Yorkz and asked him if he was willing to accept the title of a foreign academician... Actually, if I have to say it, a considerable part of the honors can be received. ??For example, the Madison Medal issued by Princeton University, the honorary doctorate awarded by Columbia University, and the foreign academician of the French Academy of Sciences. These do not require Chang Haonan himself to actually do anything. There is no need for him to even go abroad. But not now. ?At the moment, Poincar''s conjecture is the hottest thing in the academic circle. As long as one of these things is connected, the rest will be endless. ?For example, if you accept the title given by the French Academy of Sciences, can you not accept the title given by the Royal Society? ??If you dont want to, are you looking down on our British mathematical community? In short, this situation lasted until the end of June, and Chang Haonan really couldn''t hold on any longer. ??He left all similar liaison work to Tang Lintian and Liu Chenchen, while he directly dealt with it ??Taking the opportunity to check the turbofan 10 test data, I went to Shengjing to avoid the limelight. Mr. Chang, we thought you wouldnt be able to come this month. As usual, Liu Yongquan accompanied him during the trip to Institute 606. Forget it, if those people werent so enthusiastic, I probably wouldnt have come this month. Chang Haonan waved his hand with lingering fear: "The result... it''s so scary. The work email in my school is no longer usable. I wish it would be filled with emails every day. The worst part is that I can''t read emails as fast as I can receive them. quick" Liu Yongquan immediately made a tactical retreat. When I look at it, I guess we dont have the destiny to be an academic star, so we might as well come here and do something down-to-earth... After some chatting and laughing, the two quickly got down to business: Mr. Chang, Snecma sent several more representatives over the past two days, saying they wanted to sign a longer-term cooperation agreement with us. Longer term? ?Chang Haonan didn''t understand the meaning for a while. Liu Yongquan explained: Didnt the agreement we reached before only include the basic model of M88-2? This time the French are ready to discuss cooperation on subsequent improved models. Ah this ?Chang Haonan showed an expression that he couldnt bear to look at: How come there is such a sudden change in attitude? In the process of cooperating with China, Snecma himself also had ideas. Obviously, we plan to use the entire usable model on Rafale first, and then slowly study and modify it on our own. Chang Haonans attitude towards this idea is one of respect and blessing. ? ? We are all independent countries, and it is normal for us to have different positions. Therefore, in business, as long as you give the money that should be paid and the profits that should be shared, you will not be able to interfere in the future. In the end, it only took a little more than half a year, but the other side performed another sliding kneeling. Even for the French, this is a bit too frequent. Thisthere are indeed some rumors, but they are not true. Liu Yongquan lowered his voice slightly: Didnt you point out before that the turbine disk may be damaged after 1,000-1,500 cycles after an overhaul? ?Chang Haonan nodded. After Snecma returned, he conducted a ground experiment using two overhauled engines. Liu Yongquan continued: As soon as the cycle time exceeded 1,000, the hot end of a test machine exploded. It is said that it even damaged a lot of equipment in the aviation development test center..." Chang Haonan was shocked after hearing this. I am directly a woc at heart This problem with the CFM56 core machine was actually something he had seen in the information in his previous life, and it was only finally solved at the beginning of the 21st century. But none of the failure records mentioned that it would be so serious as to explode directly on the spot. I guess this explosion... has completely blown away the spirit of the French people. Liu Yongquan reasonably speculated: This is a test on the ground, so it can be kept secret. If something goes wrong in the sky, it will be a shame. And its still a common problem. Its not an occasional malfunction. If it were really exposed, let alone exported, the French Air Force itself would probably not be willing to accept it..." (End of this chapter) Chapter 846 teach the french a lesson Chapter 846: Teach the French a lesson ?Hearing Liu Yongquans explanation, Chang Haonan suddenly understood. This is to be frightened. ?However, Im afraid its not exactly what the former said. In the process of aircraft engine research and development, it is normal for accidents and even some casualties to occur. ??France is also a long-established aviation power, so it will not be frightened simply by blowing up an engine. But once combined with Liu Yongquans pretense during the previous negotiations, the effect is very good You have been developing something at home for more than ten years, but others come up and say a problem that you have never heard of. Going back to test it, I found that the situation was exactly the same as the other party described. ?At this time, the focus is no longer on whether the problem at hand can be solved. Even if I could, I would never be able to feel at ease. The mentality at this time is definitely: Since people can see such a big problem at a glance, if they take a closer look, shouldnt they be able to see more? What''s more, it is absolutely impossible for Snecma to find a solution so quickly. Without a comprehensive traceability of the entire aircraft engine life process, who would have thought that an inconspicuous electrochemical mark during the overhaul process would directly affect flight safety? You should know that only a very small number of the latest models of engines using CFM56 or its derivative core engines will use heat-resistant coatings that are prone to arcing. Even General Electric itself may not have solved this problem at the moment, or even discovered it. Let alone the French. So, for the Rafale fighter jet, a project that they could not afford to lose at all, they still chose to find foreign aid. Thinking of this, Chang Haonan asked directly: Then what conditions did they set for coming here this time? For him, it is about expanding on the basis of the existing contract. ?As long as the price is right. Talk, you can talk. And Liu Yongquan was obviously well prepared. ?After hearing Chang Haonans question, he immediately took out a file bag from the briefcase at hand: I was planning to submit the memorandum of the meeting to the group when I went to Beijing for a meeting next week, but just in time for you to arrive in Shengjing today, I brought it over directly. ?After the restructuring, not only the aviation power group itself has stronger independent management rights than the previous head office period, but also the following secondary companies. ?While the decision-making power of the group leadership is still important, at least it is not as demanding as in the past. ? Like this time, Institute 606 can first contact Snecma representatives and then report the situation to the group for decision-making. ? And if it does not involve foreign trade, it does not involve military products. ?For example, Shengfa Groups QD130 gas turbine for power generation is currently the flagship product. ?Then the autonomy will be greater. Just report the business situation on a regular basis. ?Chang Haonan took the file bag and opened it. Euro 250 million in advance, joint development throughout the life cycle, and sales divided in proportion Sincerity is okay... ?After reading through the contents of the memo as quickly as possible, he raised his head again and looked at Liu Yongquan: Old Liu, what do you think? ?Although the design of the Turbofan 10 has not yet been officially finalized, it is actually just short of saving enough hours for early batch trials, so Liu Yongquan can already devote a considerable part of his energy to cooperating with the French. In this way, no matter what decision is made, the opinion of the specific executor must always be sought. Liu Yongquan did not answer immediately. Instead, he walked forward while lowering his head and thinking. After thinking deeply, he said: From the perspective of performance indicators, the calibration given by the French is quite conservative. Obviously the temperature in front of the turbine and the stage pressure ratio of the compressor are not bad, but the maximum thrust is only 7.5 tons. There is definitely potential for upgrades. Chang Haonan nodded: Now, have you found the reason why Snecma chose to lower the thrust on the M88-2? The first model of M88, M88-1, is generally a third-generation and semi-mid-thrust engine whose performance meets the technical level. But the later M88-2 had a considerable decline in paper performance. It is equivalent to using the technology of the third and a half, or even part of the fourth generation engines, to build a third-generation mid-range version that is comparable to the F404. While talking, the two of them walked around and came to the overhaul workshop of Liming Factory. ??The M88 prototype that the French shipped over at the beginning of the year is kept here. Mr. Chang, would you like to go in and take a look? "good." A medium-sized turbofan engine is quietly placed on a special engine bracket. ?Its cold end and hot end have been separated, and it has obviously undergone more than one round of disassembly and research This is why the French initially had some concerns about joint research and development. After all, asking someone to dismantle their own engine like this is basically equivalent to asking the French lady to take the initiative to lift the bottom of her skirt and expose her underwear. ?Chang Haonan stepped forward, bent down and took a closer look. Design, of course, cant be seen. ?Then you have to look at the drawings. ?However, it must be said that as an old industrial power, the French are still capable in the field of production and manufacturing. Even though Liming Factory has replaced a batch of new equipment, if we only look at the fineness of workmanship, there is still some gap between the Turbofan 10 and the M88-2 in front of us. ?However, this seems to show the outrageousness of the French design... It was only then that Liu Yongquan, who was standing behind Chang Haonan, answered the formers question: "During this period, we have checked the design data of the M88 engine and this prototype. The preliminary conclusion is that the French had some problems with the matching of the fan and the high-pressure compressor, resulting in the effective pressure ratio of the entire engine not being The pressure is higher than that of just taking it out. "The other issue is what you said when you decided on the overall plan of Turbofan 10. The corner area inside the channel has low-energy fluid from the end wall driven by the pressure difference between the pressure surface and the suction surface. These low-energy fluids gather in Flow separation is easy to occur under reverse pressure gradient, and mixing with the mainstream will cause blockage of the compressor channel. " In this case, whether the air flow through the compressor is too small, too large, or changes too fast, it may induce corner stall and then surge. Of course, more quantitative data will not be known until we send this engine to the 624 Institute for bench testing... ?Chang Haonan has understood. ??Although the appearance of this problem is different from that of the original Turbojet 14, the essence is very close. They all relied heavily on other people''s compressor designs, but they were beyond their own capabilities and they didn''t know how to modify them to suit local conditions. Finally, basic performance can only be guaranteed by reducing push: So they just directly limited the maximum speed of the engine? "right." Liu Yongquan nodded: They directly cut the maximum speed by nearly 20%, avoiding the upper limit of corner stall. But no matter what, the lower speed limit is impossible to avoid, so if the M88-2 is maintained at medium and low thrust for a long time, or the throttle lever moves too violently, it is still possible to cause a rotational stall or even surge. Hearing this, Chang Haonan couldn''t help but smile and turned to look at Liu Yongquan: Then they have found the right person... In terms of dealing with end-zone flow problems of axial flow compressors, apart from Chang Haonan himself, the second most experienced person should be Liu Yongquan. ??The latter, who was suddenly praised, touched his shiny head with some embarrassment: Having experience with Turbofan 10, I am relatively confident that we can solve the problems with the M88 compressor by directly modifying the design of the high-pressure compressor. Eh ?Chang Haonan quickly waved his hand: This kind of problem cannot be solved too neatly. Liu Yong was completely puzzled, but he still waited for Chang Haonan''s next explanation. We have completed the work in three strokes, five strokes and two divisions. The French may think that the work is simple and not feel our level. Chang Haonan said: Furthermore, sending the improved plan directly is equivalent to throwing away our bargaining chip, and the subsequent initiative will be in the hands of the opponent. So, this matter can be done in three steps. At this time, Liu Yongquan suddenly interrupted Chang Haonan: Wait a minute, Mr. Chang Then he took out a pen and notebook from his pocket: You said. "The first step is to change the current M88-2''s electrochemical label to a fluorescent label, and then design several sets of suction holes on the end arm of the engine casing to dispose of the low-energy fluid. This method I should have originally I also said..." Open suction will cause a loss of about 8-10% of the inlet flow... Is that true, Mr. Chang? Liu Yongquan obviously remembers the knowledge points very well. "Yes, but after this design, the speed can be added back, so it will be better than the current disabled state. Even if it is installed on the carrier-based Rafale M, it will not have much negative impact on the performance. And there wont be any big problems with safety. Chang Haonan continued: "The second step, M88-3, is to modify the blade shape at the end of the high-pressure compressor blade to control the total flow loss, especially the distribution of spanwise flow loss, so that the suction surface boundary layer is stronger than the end wall boundary layer. In this way, the set of open suction holes can be eliminated, the performance can be restored to the original M88-1 level, and the lifespan can be extended to normal levels. " At this point, we can also conduct some technical verification for our countrys fourth-generation medium-sized vehicle. "The third step is to get to the final model M88-4, and then consider using a swept design and end-arm closed suction to squeeze out the hot-end performance potential of this engine as much as possible and see what level of product we can come up with. Come." In this way, for at least 8 to 10 years, the power upgrade of the Frenchs main fighter jets will be in our hands. Although it is not a final weapon, it is at least a powerful bargaining chip... ?Liu Yong wrote quickly and quickly wrote down the key points that Chang Haonan said. When the latter saw this scene, he suddenly thought of a famous scene... Repeat it to me. The first step is to change the electrochemical labeling to fluorescent labeling (End of this chapter) Chapter 847 Carbon fiber reinforced resin matrix composites Chapter 847 Carbon fiber reinforced resin matrix composites To avoid the limelight, and of course to follow up on the M88 engine cooperation project, Chang Haonan stayed in Shengjing for nearly a month and did not return to the capital until early July. ?At this time, it proves that the popularity of Poincars conjecture has gone down a lot First of all, this is because theoretical mathematics is relatively far away from life after all. As time goes by, people will naturally not pay attention to a topic that they do not understand. Secondly, the two authors of the paper disappeared at the same time after the mathematical community determined that the proof process was effective. Chang Haonan at least appeared once in a CCTV interview, and Perelman directly found out that this person was not there. As a result, the smooth combo of "lecturing - awarding - adding titles" that was supposed to be played got stuck in the first step. ?Even if some media want to follow up the report, they cant find a focus. ?Of course, in the final analysis, although the proof of the Poincar Conjecture is very long, it is not difficult to understand. Even without the certifiers personal teaching, many people can still understand it. Unless you want to integrate the theoretical tools in the paper, it will be more difficult. So objectively speaking, there is no particularly strong motivation in the academic world, so these two people must be picked out. As a mathematician, having a weird temper would be more in line with peoples stereotypes. If it were really normal, the filter would be shattered all over the place. In short, when Chang Haonan returned to the capital again, the commotion caused by Chang Haonan was relatively small... Professor Chang, I want to take a vacation... ??On the first day of Chang Haonan''s return to work, Liu Chenchen put the work report of this period on the former''s desk with a look of despair, and then asked. In fact, as a scientific research unit affiliated with the school, the Torch Laboratory, at least in theory, has one month each in winter and summer vacations. ?But the boss had specially assigned a task before leaving, so it was impossible for her to give up and leave midway. So I was bombarded with calls, emails and letters for more than half a month. Finally got over it. "Can." Chang Haonan looked at Liu Chenchen, who looked haggard, and knew that Liu Chenchen had been suffering recently, so he agreed very simply: "But before I go on vacation, I have to register the things on the list that Li Yabo gave you before." ?About three months ago, Li Yabo expressed his desire to study topics in the field of composite material microstructure, so he ordered a lot of equipment and experimental materials. ?Most of the things have now arrived one after another, and many of them need to be registered as fixed assets. This fact cannot be delayed. Its basically all done. Liu Chenchen replied: Only one surface measuring instrument imported from the British company TaylorHobson has not yet arrived, but that one is expected to be produced in September, and the next semester has already started. Well, have a nice holiday. ?Chang Haonan is not a devil after all, and he should still be given the vacation he deserves. After seeing off Liu Chenchen who almost skipped out, Chang Haonan also left the office and strolled all the way to the Compressor Research Center not far away Since there is really no way to plan another piece of land to build a building on the school campus, the experimental projects of the Torch Laboratory are temporarily placed here before moving to a new site in the suburbs. Fortunately, the Compressor Research Center does not have many people and equipment. Currently, only a group of technical personnel from the Turbofan 10 project are conducting testing work here. So there is enough space. ?When Chang Haonan came to the laboratory, Li Yabo was concentrating on operating a carbon dioxide laser. ?The former went over to take a look and found a piece of black CFRP (carbon fiber reinforced resin matrix composite) laminate that had been laid out on the operating table. Looks like ablation carving. After more than 20 years, this kind of equipment will evolve into something similar to a CNC machine tool. As long as the parameters are set, it can work fully automatically. But at this moment, the computer can still only play an auxiliary role, and some manual work is still needed to ensure the accuracy of the operation. So Chang Haonan just stood behind Li Yabo and watched, and did not speak rashly. Otherwise, if the latter''s hand shakes, a board worth several thousand yuan may be scrapped. ??Torch Laboratory is indeed wealthy, but it still needs to save where it should. ?About half an hour later, Li Yabo, who had some sweat on his forehead, finally finished the laser engraving operation and took the CFRP board off the operating table. With the naked eye...you can hardly see any difference from before. So there is a microscope not far away. After moving to the new laboratory, Chang Haonan will definitely build a separate electron microscope center. However, the relocation of such large equipment is extremely troublesome, so at the headquarters, we can only use ordinary equipment to support it first. Fortunately, the requirements for surface observation of carbon-based composite materials are not demanding, and a good-quality optical microscope can suffice. Li Yabo was about to take the sample in his hand for testing, and it was only then that he noticed Chang Haonan behind him. "teacher?" Unsurprisingly, he was taken aback: When did you come? Wellits been a while. Chang Haonan replied: "Probably when you first started burning the board." Li Yabo calmed down a little, then walked towards the microscope and explained: I am testing the removal of excess resin-based material using laser ablation. Because in CFRP materials, the thermal and photophysical parameters of the carbon fiber reinforced phase and the matrix phase of the resin material are very different, so after the lamination is completed, laser treatment is generally used to selectively remove the matrix phase..." ?Chang Haonan did not interrupt the other party, but listened quietly. ??Even though he actually knew what Li Yabo said. The heat generated by laser processing will preferentially diffuse into the material along the carbon fiber. Since the heat transfer performance and vaporization temperature of carbon fiber are an order of magnitude higher, when the temperature of laser ablation reaches the vaporization temperature of the resin matrix, the carbon fiber can still Remains solid and conducts heat stably. The principle is somewhat similar to using laser to remove melanin for whitening in medicine. ?However, for Li Yabo, a new scientific researcher who has just entered the laboratory, everything is still in a new state, which is when the desire to talk is strongest. "Well" ?His eloquent voice stopped abruptly. Then he sighed softly. Apparently the results of microscopic observation are not very satisfactory. Whats wrong? ?Chang Haonan came to the side and noticed that nearly ten CFRP boards had been piled here. One of them was placed in a separate bag. It seems that Li Yabo has spent a lot of time on this experiment. Well...thats it. I found that although the carbon fiber will not vaporize along with the resin matrix during the ablation process, as the continuous irradiation time of the laser becomes longer, the carbon fiber near the ablation incision will be oxidized." Although the ordered surface measuring instrument has not yet arrived, even with an optical microscope, it can be seen that this oxidation will cause the surface morphology of the carbon fiber material to change, and the performance will also deteriorate. This is actually hardly an achievement, but considering that Li Yabo returned home after his defense last month, and it didnt take long until he returned to school and started the experiment, it can be considered a gratifying progress. (End of this chapter) Chapter 848 Li Yabos discovery Chapter 848 Li Yabos discovery After listening to Li Yabo''s explanation, Chang Haonan also walked forward and took a look in front of the microscope''s eyepiece. As expected, we found that around the ablation points on the CFRP board, the surface of the carbon fiber fabric had some bumps and pits, but because the background was black, we couldnt see it more clearly: It seems like theres carbonization and theres also stringing and cracking? If the problem is only carbonization, it is relatively easy to deal with. Just refer to the idea of ????welding directly and process it in an inert gas environment. ??But if it is still accompanied by cracking, it means that it is a problem with the thermal properties of the material itself, even if it is thrown into vacuum processing. We can only consider solving the problem fundamentally. This is what you can see with your eyes. Li Yabo nodded: "In addition, I have also measured the mechanical properties and found that the static strength, especially the anisotropic tensile strength, will drop a lot, so I suspect that there is a delamination problem inside the material due to colloid failure, but this requires a probe. The needle can be seen in detail, and I have an appointment for next week. If the laboratory does not have equipment, it can only be handed over to a unified testing agency, and the efficiency will definitely be affected to some extent. ?However, this problem has no solution for the time being, so Chang Haonan decided to focus on other aspects first. What about lowering the label? He picked up a CFRP board from the side and asked Li Yabo. Just like some defective CPUs will have a few cores removed and sold as lower-end models, if the T700 that failed to be processed can still be used as a T500, then a higher loss rate may not be unacceptable. However, the latter immediately gave a negative answer: No, the degree of performance degradation is very unstable. Sometimes very different performance parameters can be measured at different locations on the same board. At least in the aerospace field, this risk cannot be taken. That really seems to have no practical value Chang Haonan had no choice but to give up this second-best idea. In 2000, China was still striving to move from a subsistence level to an overall well-off society. Products such as carbon fiber bicycles or fishing rods obviously could not find a market. At this time, he suddenly thought of the electric discharge machining technology at Liming Factory, which had faced similar problems at the beginning. Its a pity that carbon fiber is much more delicate than metal. Problems such as cracking and delamination cannot be solved by polishing. ?However, the ideas can be used for reference. Have you ever considered using a thinner laser beam and then gradually punching out the hole in a circular or spiral path? Chang Haonan suggested: In this way, the laser does not continuously act on the same point, and the ablation effect should be weakened. "I tried." ?Li Yabo took another CFRP board from the sample rack next to it and handed it to Chang Haonan. Compared to the ones we just saw, the thickness of this board is much thinner. It is better to say that it is a piece than a piece. Chang Haonan estimated it with the naked eye and found that the thickness may not even be one millimeter... Literally as thin as a cicada''s wings. ?However, if what was done before can only be called progress, then what the board in his hand represents can be regarded as a serious achievement. Of course, the specific application value will be discussed separately. On boards that are 0.5 mm or thinner, this really works. Li Yabo said as he carefully took the thin plate from Chang Haonan''s hand and shined it on the light on the top of the laboratory. Even slightly translucent. Then he continued: However, for such a thin plate, even mechanical processing is very easy, and the thin plate itself has almost no practical value, and it is too thin even to be used as an aircraft skin. "But if the board is thicker, such as 5 millimeters or even 1 centimeter, then whether it is circumferential cutting or spiral cutting, it will not be possible to complete the processing in one cycle. And if it is repeated many times, the thermal effect will accumulate, and the final result will be The result is still similar to what you saw before. "In addition, if you want to drill holes instead of just removing excess base material, this cutting method can only handle holes of up to 2mm, whether it is bolts or rivets... No. , composite materials have no ductility and are inconvenient for riveting... In short, the subsequent processing is also very troublesome. In the end, it is better to use special tools for mechanical removal. " Thats right, the reason why the application of carbon fiber is difficult to increase is mainly because the method of processing carbon fiber is almost the same as processing metal. However, the characteristics of carbon fiber determine that using ordinary tools can easily cause material tearing, fiber pulling out, and excessive residual stress. Therefore, the processing costs and labor hours of carbon fiber parts, especially carbon fiber structural parts, have remained high. Even long-range wide-body passenger aircraft with high prices and extremely high profit margins cannot help but use them in large quantities. Until more than 20 years later, the most mainstream composite processing method is still mechanical processing. It is just that technicians have greatly reduced processing losses through years of massive practical experience and vigorous mechanical calculations. However, these two methods were obviously unqualified for China in 2000. That''s why Chang Haonan suggested that Li Yabo focus on some strange skills. Such as laser or water jet. The latter was strategically abandoned after checking some information. ?So the only way left is laser processing. Just as far as Li Yabos experimental results are concerned, the current effect seems to be worse than mechanical processing. The latter has no thermal effect at least... ?However, Chang Haonan was not too anxious. ?According to the original timeline, the real "large-scale" application of carbon fiber composites in the aerospace field, especially when it comes to structural parts, will only happen after 2010. So, he comforted the somewhat disappointed Li Yabo with a few words: It doesnt matter, your project has only started less than a month ago, and there is still plenty of time Chang Haonan said, found a chair and sat down, and continued half-jokingly: Besides, based on your current achievements, you can probably directly invest in Nature... What he actually wanted to say was that it could be submitted to Nature Materials, a major journal of Nature. However, as he was about to speak, he remembered that this journal seemed to have been founded in the early 21st century. So it stopped abruptly in the middle of the sentence. Nature is still too difficult... Li Yabo thought Chang Haonan was talking about nature itself, and immediately shook his head: Using laser to process carbon fiber is an idea that someone proposed about four or five years ago. I just pushed it a little further, and processing ultra-thin plates has no application value. Chang Haonan waved his hand: Its just because it has no application value that I let you distribute it casually. If it was really useful, you would have to register a patent Then without further explanation, he simply returned to the topic of the paper: You can use TORC Multiphysics or Materials Studio to do a few dynamic simulations. The accuracy of the results is not a big problem, as long as it can be explained from a qualitative perspective. Then we can send a JACS, or wait and send our own JCAS..." ?MaterialsStudio is a numerical calculation software developed by Accelrys in early 2000. Because it specializes in molecular dynamics calculations and also draws on a lot of content from TORC Multiphysics, its performance in this field is no worse than the latter. ?But this time, Li Yabo did not continue what Chang Haonan said, but suddenly changed the subject: Speaking of simulation, teacher, I have used TORCMultiphysics to simulate the effect of superheated ablation on CFRP materials. What was the result? Chang Haonan does not have high expectations for the simulation accuracy of non-metallic composite materials. Li Yabo had already sat back in front of the computer: As usual, in order to speed up the calculation, we only simulate the ablation effect of 10ms. Indeed, as you said before, the accuracy on carbon fiber is very poor. "But a few days ago, I once entered the wrong simulation duration before going to bed. I entered it as 1000ms, which is 1 second, and then the next day I found that the computer had already calculated it all night. As a result, the accuracy of the simulation was better than It was much higher in the past. "Later, I conducted several different tests in groups, and found that generally the longer the simulation time, the higher the accuracy compared with the experimental results. I guess it may be because there is some kind of highly random mechanism. It''s more obvious in the short term, but it will tend to average over time..." ?Chang Haonan was already ready to leave. But when Li Yabo said this, he suddenly stopped again. (End of this chapter) Chapter 849 Super performance of passive skills Chapter 849: Super performance of passive skills Li Yabos guess can be regarded as a common phenomenon in molecular dynamics and even in the entire field of microphysics. Due to the existence of irregular thermal motion, the motion characteristics of a single molecule in a very short time cannot be accurately predicted. Once a large number of molecules form a macroscopic substance, it will have relatively stable apparent physical characteristics. Just like the molecular simulation mentioned by Chang Haonan just now. ??If you only focus on one or ten molecules and study it or their actions in the next lattice relaxation time, then even if the whole process is completely correct, the results will most likely be irrelevant to the experimental results. However, if the scale of the research object and the research time are increased by a few orders of magnitude, even if it is still very outrageous at the quantitative level, it can often provide guidance at the qualitative level. ?However, when it comes to the phenomenon that the two men just discussed, this explanation seems a bit far-fetched. Because 10 ms is already a long "macroscopic time" for molecular motion, and the research object is also a multi-layered molecule near the surface, it should be enough to offset the error caused by Brownian motion. ?Thinking of this, Chang Haonan put down the briefcase he had picked up again and returned behind Li Yabo: Let me take a look at the simulation results. Ordinary PCs these days have limited running speeds. If you want to open more complex numerical calculation software such as TORC Multiphysics or Materials Studio, which even has a graphical interface, you have to wait for a while. Fortunately, although Li Yabo has not been in the laboratory for a long time, he has good habits and has the habit of sorting out data after each work. ?So soon, an Excel data sheet appeared in front of Chang Haonan. There are even screenshots of simulation results at key locations. It feels like...the 10ms results are not completely irregular... Chang Haonan looked at the dense tables in front of him and felt that it was not as exaggerated as he thought, so he asked: Have you ever tried a shorter exposure time, such as 1ms? Hmm Ive tried it on software. ?Li Yabo said and clicked on another worksheet in the Excel file: However, there is no way to carry out experimental control, so it cannot be regarded as valid data. Our equipment is a continuous laser source and does not support a single irradiation time of less than 10ms. The instruction manual says that if the setting value is less than 5, the time error will become larger and it will cause unnecessary high load on the laser. In addition, according to the literature I have collected before, laser irradiation of 2ms or lower cannot produce sufficient thermal conductivity for CFRP boards, and effective processing cannot be achieved at all. ?Chang Haonan did not answer immediately, but clicked on several other worksheets in sequence. It was found that indeed in the simulation of 1000ms or longer, the results fit the experimental data quite well. Of course, its not bad in the physical sense. In molecular physics, an R^2 value of 0.8 is already a high value. As for results starting with 9, or even several 9s, it is something that one would never dare to dream of. In short, at least in terms of thermal processing, the accuracy of numerical calculations is much better than what Chang Haonan had previously estimated. The errors between 10ms and 100ms suddenly become larger, which may be explained by... When high-energy rays irradiate the material surface, in addition to the thermal effect, there is another mechanism that simultaneously produces a removal effect on the material. ??If the irradiation time is relatively long and enough carbon fiber conducts heat to the interior, the effect at the macro level will be mainly thermal effect. So the numerical calculation results fit well. When the irradiation time is very short, the thermal effect has not had time to be reflected, or it is too late to be fully reflected. In this way, the effect of another mechanism is reflected. As a result, numerical calculation results fitted based on pure thermal effects begin to deviate. The shorter the time, the fewer components of the thermal effect, and the worse the fitting results. Reasonable. Very reasonable. This is also the main weakness of numerical calculation methods. There is nothing we can do about the principle being a black box, or even though it is not a black box, there are multiple mechanisms that interact with each other and none of them is the dominant process. ?So, the next work is to find this mechanism that coexists with the thermal effect. Considering that it can show its effect in a very short time of 10ms, Chang Haonan boldly speculated that it is likely to be a real instant effect. That is to say, it produces an effect every time a high-energy ray is irradiated on the material surface, regardless of the subsequent irradiation time... Then we need to get a new piece of equipment... ?Chang Haonan turned his attention to the continuous laser processing equipment not far away. It is known that the relaxation time of electrons to the crystal lattice is approximately on the order of picoseconds (10^-12 seconds). ?So before the thermal effect shows obvious effects, to observe the new mechanism alone, at best, a pulse laser with a period of less than nanoseconds is needed... Taking into account the experimental speed, it is best to use picoseconds or even femtoseconds Li Yabo has also said before that according to past research, the continuous laser processing effect below 2ms is very poor. That means that the single action effect of this new mechanism is very poor. It takes a number of times to pile up. In the same period of time, the number of irradiations of the picosecond laser will be 500 million times that of the 2ms laser... About ten minutes passed. Chang Haonan finally came out of his thoughts. Then I heard a slightly panicked voice next to me: Teacher, teacher? Its Li Yabo. "Um?" ?Chang Haonan turned his head and saw his disciple looking anxious, holding a roll of toilet paper and a glass of water in his hand. Teacher, you... At this time, Chang Haonan realized that he was already sweating. The shirt stuck to my skin. Apparently it has undergone intensive heat dissipation. OhI just thought about something. ?Chang Haonan took the toilet paper, pulled off a few pieces and wiped himself. He quickly remembered that when his theoretical level was promoted to LV4, the system had reminded him that when studying an unknown phenomenon within the scope of his ability, there would be a certain probability of being able to see through its essence. ?Looking back now, the sudden wave of inspiration just now should be due to this "certain probability" happening to play a role. Its simply amazing. Abo. ?Chang Haonan took a few deep breaths and drank some water to calm himself down a little: I think we can really write an article on the thermal effect mechanism of laser ablation. ?Laser processing should be considered a popular direction in the field of materials science at this time, but the research focus is mainly on thermal effects. The mechanism just speculated by Chang Haonan, even if he was not the first to do so, at least has not received widespread attention. In this case, its better to just go with the flow. Let everyone continue to go a little further in the direction of thermal effects. ?Even if someone discovers the secret in this in the future, there is nothing that can be said ??I didnt falsify the data, I just revealed the mechanism of laser thermal effect. ?Can you still blame me for studying too deeply? After a brief pause, Chang Haonan continued: "Although your current data volume is still a bit small, I think you can add the effects of different wavelengths, different laser beam incidence methods, and different gas environments on the processing effect later, and then explain the reasons for this effect from a microscopic mechanism, such as Epoxy resin molecules must have different absorption rates for different wavelengths of laser light. Also, the chemical bond energy between CFPR molecules should be exactly within the energy range of visible light, so infrared incidence cannot directly break the bond, and can only promote thermal melting through the photothermal effect..." ?This time, he did not activate the passive skill. It is estimated that the physical condition does not support frequent activation in a short period of time. After all, the amount of sweating just now was indeed a bit abnormal. ?But its not a big problem. For Chang Haonan now, it is not difficult to write a paper in materials science, even if it is a high-level paper, as long as the funds are sufficient. Whats more, there are real materials in it. It''s just a slight deviation in the direction. Li Yabo next to him was holding a small notebook and taking notes while listening. Of course, what I mentioned are just a few ideas that I just thought of. You can expand some more, and its best to come up with a mathematical model. ?Chang Haonan put down the paper cup: If you can do it well, it may be a Nature article. "ah?" Li Yabo stopped writing and raised his head: Is it really Nature? Youre going to graduate too. Chang Haonan smiled: One Nature article is enough. "graduate" ?Li Yabo was in a trance for a while. He has only graduated from undergraduate degree one month ago, so why is he already thinking about graduating from graduate school... "What I mean is...didn''t you say before that we have a domestic journal that is under preparation? You are the editor-in-chief." You said JCAS Chang Haonan replied: By the time its officially done, your article will have been published long ago. Besides, Im the editor-in-chief, so when you publish articles on it you still have to avoid suspicion In fact, these two reasons certainly cannot be said to be false. Its just that there is a more important reason ?The influence of Nature is greater, and it is easier to lead subsequent colleagues to the direction of thermal effects. Its just this kind of operation that Li Yabo doesnt need to know yet (End of this chapter) Chapter 850 The beginning of the food war Chapter 850 The Beginning of the Food War After assigning the task to Li Yabo, Chang Haonan left the compressor research. Studying thermal effects is a relatively simple and straightforward part that can be left to students. But that new mechanism Considering that it corresponds to the thermal effect, it can be tentatively named the cold ablation mechanism. After all, it may involve a completely new theory, so Chang Haonan still has to do it himself. ?So... Since we want to engage in materials science research, the prerequisites are naturally equipment and materials. Even if Chang Haonan has a system, it will be the same. According to his speculation just now, the cold ablation mechanism is strongly related to the basic theory of molecular dynamics. ?The research equipment needed cannot be obtained by these small efforts now. In addition, in addition to equipment, several researchers who are not students and are dedicated to scientific research may also be needed. ??As well as postdocs. ?Of course, these all have to rely on the new laboratory under construction. Otherwise, there would be almost no room for people in the school headquarters, not to mention the equipment. After sorting out the primary and secondary relationships here, Chang Haonan turned directly and went to Tang Lintian''s office. The latter was flipping through a document at this time. Judging from the two newspapers on hand, I am afraid they were delivered just now. Hearing footsteps approaching from far away, Tang Lintian raised his head and saw Chang Haonan appearing at the door. Professor Chang? He put down the pen and documents in his hands: Youre a rare visitor...why do you have time to come to my place today? ?The last time Chang Haonan took the initiative to go to Tang Lintian''s office was when he had not even graduated from his undergraduate degree. ?It also indirectly caused the location of the latter''s can of good tea to be exposed, and was eventually beaten to the autumn wind. ?At that time, Tang Lintian was still the dean of the School of Aeronautical Science and Engineering. The two of them met afterward, either outside or in Chang Haonan''s office. Something about the new laboratory. Chang Haonan sat directly opposite Tang Lintian''s desk, and the latter took out a tin can from a corner of the filing cabinet as usual. ?Du Yishan has retired, and neither Chang Haonan nor Liu Zhenxiang drink tea much. ??As the principal of Jinghang, there is a high probability that no fourth person will dare to come directly to him to challenge the autumn wind. Chang Haonan was not in a hurry. While waiting for Tang Lintian to make tea, Chang Haonan inadvertently glanced at the two newspapers placed next to him. The US Department of Agriculture issues a warning: Abnormal drought may reduce soybean production, and we need to be alert to the harm caused to humans by extreme weather "The problem of global warming is imminent, the US Department of Agriculture issues a production reduction warning" ! Chang Haonan was shocked when he saw these two titles. He had seen a similar plot in his previous life. It can be regarded as the first round of offensive launched by the United States at the strategic level after China joined the WTO. But that time seemed to have happened around 2004. Now that China has joined the WTO one year ahead of schedule, Americans who have suffered some losses in the past few years are obviously a little bit restless. So its only been three months, and I cant wait to do something. The two cups of tea were quickly placed on the desk. New laboratory ? Tang Lintian sat back down and was about to continue what he had just said, but he soon noticed Chang Haonan''s glance to the side and temporarily changed the topic: It says that soybean futures have risen more than three times last month, and there is no sign of relief. "Um" Chang Haonan nodded absently, picked up the cup and blew lightly: "Although soybeans are not a staple food, they are after all the main oil crops and can be considered as semi-necessities for survival. Once there is a risk of insufficient supply of this kind of thing, the price increase will not be based on the relationship between supply and demand, but will continue to increase until some people can no longer buy it. Until then. Tang Lintian originally just picked up two newspapers and read them, but he became interested after hearing what Chang Haonan said: Professor Chang also studies some economics? ?After asking for an explanation, I felt it seemed reasonable, so I added another sentence: OhI almost forgot that you are still in charge of this large central enterprise ?Chang Haonan took a sip of tea and then shook his head: It has nothing to do with that. I really dont understand economics, but I have read some history. He said and put the teacup back on the table: "During the Spring and Autumn Period, in order to destroy Lu and Liang, Guan Zhong of Qi suggested to Duke Huan of Qi that he buy a fabric called '''', a specialty of these two countries, at a high price, and at the same time dump grains to them at extremely low prices. , and the states of Lu and Liang saw that it was profitable, so they ordered that all the land in the country be converted to Ti." "After only a few years, the grain output of Lu and Liang was basically zero, and they could only rely on imports from Qi. At this time, Duke Huan of Qi suddenly ordered that the entire country wear silk, so that the silk from those two countries could not be sold. He went out, and at the same time he suddenly raised the price of exported grain, which directly caused a round of famine, and defeated two serious enemies without a single blow..." "Historical books say it is rather obscure. This operation is called the Battle of Silk, but the core is actually food. After all, people can live without clothes or shelter if they are desperate, but if they don''t eat, they will definitely starve to death. " ? Tang Lintian was born in science and engineering, so naturally he had never read "Guanzi", which was relatively unpopular even among pre-Qin works. But after listening to Chang Haonan''s talk about having a nose and eyes, I also knew that it was unlikely to be made up on the spot. Besides, there is no reason for the other party to make up such a story to comfort himself. So what youre saying is...the Americans hope that by raising the price of soybeans, our country will stop growing food and switch to soybeans, and then cut off our food supply in a few years..." Halfway through saying this, he felt that something was not right. ?Lu and Liang are just two small countries after all. Huaxia obviously cannot be directly involved. No, no ?Chang Haonan also showed an expression that he couldnt bear to look at: Our country has control over staple food, and there is basically no way to make decisions about it ?In the last round of negotiations to join the WTO, China and the United States carried out a package of exchange conditions, including opening up most agricultural markets. This also includes staple foods. But with the opening up, the red line of cultivated land and yield indicators are still there. In any case, it is impossible for the whole country to plant soybeans. Tang Lintian thought so and immediately breathed a sigh of relief: Then what do you mean ?Chang Haonan pretended to think for a while, and then replied: I estimate that the other party simply wants to target our countrys soybean industry. "If you think about it, our country''s cultivated land area is not enough, and most of it can only be used to maintain staple food production. Soybeans themselves rely on imports. Now that prices are soaring, soybean farmers must expand their planting area, and downstream companies will also be eager to buy from the international market. Buy soybean futures in case it goes higher. Wait until next year, or the year after next at the latest, when they announce that production has not dropped as expected, causing soybean prices to plummet ??Although Chang Haonan didn''t finish what he said, it''s not difficult to guess what happened next. Except for a small number of enterprises with state support, most downstream enterprises may go bankrupt as a result. Soybean farmers who have hurriedly expanded their planting area will obviously also face huge losses. The most troublesome part is ? ? In the last generation, China was able to win the staple food war. Although wonderful operations played a very important role, in the final analysis, it was still the nearly 2 billion acres of domestic cultivated land that made up the difference. No matter how bad the situation is, you wont really be unable to eat. But the soybean industry obviously does not have this advantage. The self-sufficiency capacity itself is very weak, and related industries are still dominated by private enterprises and collective enterprises, and there is no way to implement orders and prohibitions like central enterprises. And now stocking up on soybeans Apparently its a bit late too. So, Chang Haonan couldn''t even think of any good solution for a while... (End of this chapter) Chapter 851 Beijing Electron Microscopy Center Chapter 851 Beijing Electron Microscopy Center ?The news in the newspaper is just an episode after all. ?Chang Haonan cant think of a solution for the time being. This is just one aspect. ?Another point is that as a middle- and senior-level manager within the Science and Technology Commission system, it is indeed difficult for him to rashly interfere in issues in the agricultural field. And in the final analysis, agriculture can be simply summarized as land + seeds + fertilizer. ??If these three basic elements cannot be resolved, the room for maneuver at the policy level will ultimately be limited. ??The exchange between Chang Haonan and Tang Lintian just now was more like a standard chat session for middle-aged men than a serious discussion. So after the bottom of a cup of tea, the two of them quickly returned to the topic. By the way, Professor Chang, you just said that you came to me this time about the new laboratory? Tang Lintian asked as he picked up the teapot and added water to the cup. "yes." Chang Haonan nodded: I should have graduated around this time last year, so its been a year. Whats the situation there now? ??The groundbreaking of the new location of Torch Lab was basically synchronized with his joining the company. In fact, to put it bluntly, the dumplings were specially made for this dish of vinegar. Theoretically, the speaker should be Chang Haonan himself. ?But after all, that place is near Shahe, and it will be considered a suburb of Beijing more than 20 years later. Even the fifth ring road has not been repaired these days, let alone. ?Especially for Chang Haonan, traveling now involves a security issue. So he only went there once not long after he started working. The entire construction process is supervised and managed by Beijing Hang University. The main building No. 1 has been capped, and only some internal facilities have not been installed yet. ??Tang Lintian must have followed up on matters related to Chang Haonan personally, so there is no need to ask anyone else: No. 2 and No. 3 Laboratory Buildings... I had just reached the second floor when I went there last week. I estimate that I will have to wait until the end of the year no matter how soon. The living facilities such as dormitories and canteens have been completed, but if you really want to live in it... I still recommend waiting, at least after summer. I went in and took a look, and the smell is still a bit strong. The new laboratory has planned a total of three working buildings connected by covered bridges, all with four floors above ground and two floors underground. ?Originally, according to Tang Lintians idea, he was going to refer to some foreign scientific research institutions to make the building look more sci-fi. It can also match the purpose of Torch Labs future-oriented purpose. But later on, in order to meet the deadline, I gave up. Everything else is easy to talk about. Are the water and electricity connected? ?Chang Haonan goes straight to the point: I have an important research project on hand right now, so I plan to purchase some large-scale experimental equipment in advance. We definitely dont have room to put it at the school headquarters, and it will be inconvenient to relocate it later. Can it be placed directly in Changping? Important research? ?Tang Lintians eyes immediately lit up. ?The person immediately sat upright. ?According to his experience, if even Chang Haonan says something is important, it must be really important. What specific equipment is needed? At the same time, Tang Lintian has already begun to think about how much of the school''s funds can be used flexibly this year. ??And if you complain to your superiors about poverty again, how much extra money can you make ??Funding applications with Chang Haonans name are generally relatively easy to pass. In fact, at the beginning, some people felt dissatisfied. But soon, this sound disappeared. After all, the rate of return on investment shown by Chang Haonan is simply outrageous. Basically, progress is made in one year, results are produced in two years, and impact is seen in three years. No matter how narrow-minded the leaders of the funding department are, they will not worry about money when they dont have to worry about using the funds they sign to make wedding dresses for others. So now that I have this opportunity, I must take a good look at the Natural Science Foundation of China. Chang Haonan, who was on the opposite side, certainly didnt know that Tang Lintian had already begun to think about how to write a report asking for money. He just raised his head slightly and thought for a while, and then answered with his fingers: "Brand-new supercomputer, high-power variable-band pulse laser, scanning galvanometer, carbon fiber automatic laying machine... Then it is best to have a complete electron microscope center, uh... this may be a bit more expensive, you can also buy one first An ordinary transmission electron microscope and a scanning electron microscope with high vacuum mode. The rest can be added later, but the space must be reserved first, so it will be placed on the second underground floor of the main building..." Even though Tang Lintian had been mentally prepared in advance, he still felt a little nervous when he heard this sentence, which was the same as the name of the dish.ification Until Chang Haonan finished speaking, he had not yet recovered. Principal Tang. ??The former said to himself that Old Tang''s lung capacity was quite serious, and at the same time he stretched out his hand and waved it in front of the other party: If you continue like this, you will be responsible for the global warming... ??Tang Lintian was stunned for a moment, and then he understood the meaning of Chang Haonan''s words. Ahem ?He coughed twice in embarrassment: A lot of the equipment here...has to be imported, right? Thats true. Chang Haonan nodded: At least electron microscopes can only be imported for now. ?Although he has driven the development of many industries in China in recent years, he still has to do it step by step. Especially in some areas that are originally particularly weak, accumulation still needs to be made. It doesn''t exist if you take out an electron microscope directly from your pocket. Fortunately, thanks to the relationship between China and the EU, and of course more importantly, the two sides are becoming more and more deeply bound in some industries and technologies. China is subject to much fewer restrictions in the field of high-end instruments and equipment than in previous generations. Its just the money. It will definitely still cost money. Then just the things you mentioned are equivalent to 100 million in local currency, so Im afraid its unstoppable..." ?Tang Lintian feels a bit toothache. In 2000, the entire Beijing Airlines on-campus scientific research funding totaled nearly 500 million yuan. This is already a figure that has doubled from 1999. Chang Haonan just bought a wave of equipment. He didnt even build the entire laboratory, but only worked on nearly a quarter of it... Even if he is the principal, this board is not easy to shoot. Scientific research is like this. Front-line technical personnel only need to devote themselves to the project and concentrate on research, but the back-line personnel have many things to consider... (bushi) Chang Haonan, after all, had experienced the suffering of funding applications in his previous life, so he could naturally understand Tang Lintians difficulty: Such large-scale equipment is basically priced on a one-case basis, so the specific cost depends on the brand, model and negotiation situation. If we give a rough estimate, the complete set of equipment may indeed cost around 120 million. This time, before Tang Lintian could stop his heart and lungs, he added another sentence: However, we are a joint laboratory after all, so our Torch Group will also bear part of the costs. ?Tang Lintian breathed a sigh of relief. But not much. In addition, this electron microscopy center can not only produce scientific research results, but can also bring some economic benefits to the school...and of course our laboratory..." ?Chang Haonan continues to add more money: For example, if you perform electron microscopy tests for people from other research institutions, charging hundreds or thousands of dollars at a time is not excessive, right? If you think about it over time, you may even be able to earn back your investment in a few years ?This is pure painting cake. Electron microscopy is mainly used in the fields of biology and materials science. Youdao said, "The electron microscope is good, and the paper is indispensable." But now around 2000, these two disciplines have not yet exploded. Even if the electron microscopy center opens its doors to attract customers, it will not be as overwhelming as it will be 20 years later. ?But this reason is mainly for Tang Lintian to convince himself ?Chang Haonan could see that the other party still wanted to invest the money. Just need to bite the bullet. Sure enough, after looking down at the tea in silence for a while, Tang Lintian raised his head again: My impression is that at the beginning of this year, the Ministry of Science and Technology, the Ministry of Finance, the Beijing Municipal Science and Technology Commission and the Academy of Sciences wanted to establish a national-level innovative high-end basic scientific research platform. If you can get this project and you are willing to co-sign with these units... the money problem will not be difficult to solve. (End of this chapter) Chapter 852 Go to Hudong Chapter 852 Heading to Hudong ?The large-scale experimental equipment Chang Haonan wanted, especially the two electron microscopes, were not only expensive, but the equipment itself also had to be specially adjusted for the environment in which it was used. So the form must not be the same as those that Li Yabo bought before. Make a product list to see the models and configurations, and then directly pay a deposit and place an order. Rather, it is closer to the arms sales trade that Chang Haonan is familiar with. The buyer needs to send a delegation, or at least a few representatives, to communicate with the other party and determine the details from production to transportation to installation to after-sales before signing a contract. If it were left to China in the past, then if you want to buy this kind of high-end equipment, there will most likely be many usage restrictions attached, making negotiations even more complicated. In addition, Tang Lintian is planning to raise some funds through multi-party co-construction, so the process is even more complicated. Even though Chang Haonan was a very popular brand at the moment, so all the approvals were basically given green light, but it still took two rounds of feasibility studies, totaling more than a month, before the delegation to Europe to purchase equipment was formed. . This way, equipment of different brands and models can be inspected while going through the subsequent fund allocation process. As soon as the money is approved, place the order as soon as possible. As a representative recognized by both Beijing Hang University and Torch Group, and with rich experience in conducting trade negotiations with many countries in the past, Professor Yang Huimei became the deputy leader who actually presided over the work of the delegation. After going all the way, by the time the delegation set off, it was already late August. ?The Torch Laboratory has gradually become more lively Among the first batch of students in the laboratory, except for Li Yabo, who was led by Chang Haonan himself, they all came from other schools. There is definitely no way to join the group before graduation in June. As for the summer vacation period The four teachers, including Chang Haonan, have just finished their student careers and are not devils. There is no compulsory requirement to join the group in advance. So several people came to Beijing Airlines to report one after another in August. ?Among them, Yao Mengnas final and official disciple was still Wan Chuanqing. ??That is, the female student from the Physics Department of Jinling University who participated in the interview with Li Yabo before. Liu Fangping also chose another person in that interview, from Hunan University, named Tan Ruifan. ?Although he and Lei Zhixing did not attend the interview in person, Chang Haonan later compiled the interview information and handed it over to them, allowing them to decide on their own. The latter did not choose from the list, but recruited a junior student from Qinghua University. It seems that the two should have known each other before Lei Zhixing graduated and joined Torch Labs. In addition to three master''s students, there is also a doctorate under the name of Chang Haonan. Wang Jie. ?Graduated with a master''s degree from the research group of Professor Li Zhihong of Bingcheng University of Technology. Originally, he could have continued his Ph.D. studies in the original group. ?However, he had indirect contact with the bearing project hosted by Chang Haonan when he was in the first year of his master''s degree. ?Of course, at that time, Chang Haonan was only in the first year of his Ph.D. ?So Wang Jie didnt have much idea. But two years later, when the latter was about to graduate, he accidentally saw a piece of news. A piece of news from Beijing Hang University. That''s when I discovered that Chang Haonan, who originally graduated from the undergraduate program in the same year as me, had already become a graduate! teach! Grant! La! Still a second-level professor. Even higher than his mentor at the time, Professor Li Zhihong. Thats why his mind became alive again. Fortunately, Teacher Li Zhihong is also a reasonable person and did not put any obstacles in the graduation issue because of this incident. In short, Wang Jie went from Bingcheng Industry to Beijing Airlines. For these students from outside schools, especially master''s students, in the first semester, in addition to intensive classes, they also need to be familiar with their own topics and laboratory conditions. In fact, it is difficult to spare time for actual scientific research. So although there were five graduate students at once, only Li Yabo and Wang Jie were the only ones who could really start working right away. ?Originally, according to Chang Haonan''s intention, the nine of us, as the starting members of Torch Lab, should find a time when everyone is free to go out for a meal or something. But the plan cannot keep up with the changes. On August 21, the day after the new students were reported, new work came to Liu Fangping and Lei Zhixing. China Shipbuilding Industry Group has approved the feasibility study submitted by Hudong Shipyard. The LNG ship using Gas-Transport cargo tank and boil-off gas complete reliquefaction system has officially entered the project research and development process. Among them, the calculation of the overall structure of the ship, as well as the coordination relationship between the reliquefaction system and other subsystems, will be completed by the Torch Group and the Torch Laboratory. ?So, the two of them, who had just returned to Beijing Airlines for a few days, had no choice but to go to Shanghai again. Considering that this time it is a formal cooperation between the two parties. So Chang Haonan, who is also the head of the group and the laboratory, naturally had to show up and sign. The dinner party had to be put on hold for now. From the moment the plane was about to land, Lei Zhixing began to introduce the general situation of the Hudong Shipyard to Chang Haonan. After all, he and Liu Fangping had been staying there on and off for almost seven or eight months. According to their understanding, Chang Haonans only previous visit to Shanghai was at the beginning of the year to attend the certification success ceremony of the C808 passenger aircraft. Have not been to other places. Even except for Cai Honggui, I probably have not had direct contact with any comrades there. As a result, after the plane landed, Chang Haonan started to communicate enthusiastically with the comrades who came to receive him. Lei Zhixing and Liu Fangping were dumbfounded. ?The two of them stayed at the door of the cabin and even forgot to go down the gangway for a moment. Before we returned to Beijing Airlines last month, didnt the people in Hudong still say that they were not familiar with Professor Chang? ?Lei Zhixing came slightly closer to Liu Fangping and asked in a low voice. Thats exactly what he said. The latters answer highlights a concise and clear answer. ?However, Lei Zhixing had long been accustomed to the old man''s way of speaking, so he didn''t care. Instead, he sighed and then shook his head. Our bosss connections are simply unfathomable Actually, Chang Haonan really didnt know the people at Hudong Shipyard very well. Even Cai Honggui has only met twice. But during the National Day last year, he made an appointment with Lin Qing from the 701 Institute to take time to observe the new domestic frigates that were under construction. ?However, he has been busy since then, and it is not worth a special trip to Hudong just for this matter. So it has been postponed until now. ? And it was Lin Qing who was chatting and laughing with Chang Haonan on the tarmac of Dachang Airport. And a deputy general manager of China Shipbuilding Industry Group, Wu Wentao. The latter and Chang Haonan met once at the Millennium Gala at the end of last year. In fact, after the split of the Shipbuilding Corporation, 701 Institute and Hudong Shipyard have been affiliated to two groups, Shipbuilding Industry and Shipbuilding Industry respectively. However, within the ship system, it is very common for you to be in the same situation. In addition, the two main shipyards in China that produce frigates, namely Hudong and Huangpu, are both under the shipbuilding industry, so there is almost no problem in the separation. affect the cooperation between the two parties. Including Lin Qing and Wu Wentao, they can be regarded as old acquaintances. ?After some pleasantries, Chang Haonan and his group got into several minibuses. Mr. Chang, our contract signing ceremony for the LNG ship is scheduled for tomorrow afternoon. So today, according to Comrade Lin Qings arrangement, I will take you to the frigate first? After the car started moving, Wu Wentao, who was sitting on the other side of the aisle, turned sideways and asked Chang Haonan for his opinion on the itinerary. Wewe are welcome to do as we please. Chang Haonan has never seen what it''s like inside a shipyard in his entire life. He will have no objection to it no matter how it is arranged. Thats good. ?Wu Wentao nodded, and then instructed a staff member sitting in front: Go to the 2nd dock. (End of this chapter) Chapter 853 Domestic new frigate Chapter 853 New domestic frigates What surprised Chang Haonan was that the 2# shipyard was indeed quite different from the shipyard in his previous concept. Not only is it hidden under the top cover, it is even completely on the ground some distance from the seaside. ?It is not difficult to see from the surrounding structures that after the boat is built, it must pass through a specific slide rail before it can be launched into the water. ?This design determines that this No. 2 shipyard cannot build ships that are too large. Of course, the advantage is that not only can you be wary of satellite reconnaissance from overhead, but even ships passing by the channel cannot see what is going on inside the dock. Perhaps noticing the strange look in Chang Haonans eyes, Lin Qing explained: "Originally, if the traditional tower shipbuilding method was used, the dock would have to be placed on the shore. However, the nearby Jiangnan Factory began to introduce segmented shipbuilding when building 052. Hudong hopes to build it on top of 054. I also wanted to practice in this area, so I specially built this 2nd dock on the ground. "At that time, the Hudong Factory was producing an improved 053H2G frigate for the Pakistan Navy. The original plan was to start with the No. 4 ship and replace it with a new technology. However, in 1998, you know that the international situation changed greatly, so the initial Three ships were transferred to our navy, and the No. 4 ship was not built..." ? Lin Qing said that the 053H2G modification is actually 053H3. In 1998, India and Pakistan conducted multiple rounds of intensive nuclear tests, resulting in both sides being subjected to severe embargo sanctions ?Whether sanctions are effective depends on the reasons for the sanctions and the targets. ?Planes like the J-7F or some small ground equipment can be transported secretly. ??But honorably delivering a frigate against a sanctions resolution that you voted for... This matter is entirely done in the face of the Security Council. Even Americans cant do it. At that time, the Chinese navy was in urgent need of combat power, so it directly exported to domestic sales. ?However, the situation on this timeline is still a little different from the previous life. Because the design of 054 was frozen in 1999, and the cost is much lower than that of the previous generation 054, which required a lot of imported parts from Europe. So the originally planned second batch of 053H3 was directly cut off and converted to the current fully-combustion-powered version of the new frigate. Chang Haonan listened to Lin Qing''s introduction and walked into the slightly mysterious No. 2 dock. As soon as you enter the door, you can see a warship that has begun to take shape parked on the slipway in the center of the dock. Although the former does not know the detailed design plan of 054, the renderings have always been seen. No matter how bad it is, a ship with a conventional layout cannot do any tricks. The reason why it is said to be "initially taking shape" is that only about two-thirds of the front of the ship is complete at this time, while the rear third is divided into two segments and has not yet been docked with the main hull. This is exactly the characteristic of the segmented shipbuilding method. Install most of the equipment into the hull structure first, and then assemble it. The advantage of this is that multiple sections can be started simultaneously and finally assembled together. The shipbuilding efficiency is much faster than the tower shipbuilding method. The first ship of 054 started cutting steel plates in October last year. It only took about 10 months for the hull to be basically completed. ??As long as some further outfitting of ship surface equipment is carried out, the sea trial process can begin in about half a year. Even for a small ship with a volume of less than 4,000 tons, it is quite efficient. ?Of course the price is that there is almost no fault tolerance. ??If the error of a certain segment is slightly larger, making it impossible to align with other hulls, then the only way is to rework it. Exactly, the section that will be closed soon is near the power cabin. ??Everyone came to a relatively high operating platform. Lin Qing pointed to a location at the bottom of the cabin and said to Chang Haonan: There are two QC130 gas turbines and the entire power system including the reduction gearbox. ?While saying this, a staff member from behind handed over a telescope at the right time. Although Chang Haonan was deeply involved in the research and development of the turbojet 14 itself, because when the QC/QD130 was developed, the turbofan 10 project was already in progress, so he did not actually know much about the situation after the combustion change. Fortunately, Lin Qing and another engineer named Liu who was responsible for shipbuilding were always there to cooperate with the introduction. Where is the flue, where is the air inlet, and where is the fuel pipe... ?As well as shock-absorbing rafts deployed to further enhance anti-submarine capabilities, and exhaust ejector devices specially designed to suppress the infrared signature of the ship... It can be said that although it is only a type of frigate with strict cost restrictions, the shipbuilding industry system still cooperates with the aviation industry system to use some cost-effective technologies that can improve combat effectiveness as much as possible. In addition to improving the combat effectiveness of this class of ships as much as possible, it is more important to pave the way for new domestic destroyers that have also entered the planning stage. ?The only problem is that the gas turbine itself will be more expensive to use than a diesel engine. ?However, since the 054 directly chooses full-combustion power in one step, and it is not even a combination of combustion and combustion, then Yan Zhongcheng must have made some tilt towards fuel consumption in terms of performance trade-offs. What was the result of the previous test of QC130 on the dynamic test platform? When Lin Qing finished speaking, Chang Haonan suddenly asked. Last year when the Aerospace Power Group was established, he once drew three pieces of pie. ?One of them is to develop a 30MW marine gas turbine based on the turbofan 10 core engine, which will be used in future domestic destroyers. ? Two gas turbines of this level can drive an 8,000-ton destroyer, and if four are used, it can power a 12,000-ton or higher destroyer. ??And if you want to do a good job in aviation modification and combustion, you must refer to the feedback given by some users. There is nothing wrong with the gas turbine itself. ?Lin Qing replied: "The volume, weight, output power, mean time between failures and fuel consumption are all within the initial design specifications. Only the noise and vibration levels are slightly larger in order to compromise with fuel consumption. However, no matter how large it is, compared with diesel engines It''s still a lot better than before..." "The current main problem is actually the same as that of the two 052s. Our navy has almost never equipped fully-combustion-powered warships in the past, so neither the crew nor the shipyard are very accustomed to the maintenance, overhaul and maintenance of gas engines. " Especially after each voyage, or when a malfunction occurs, because gas turbines are more complex than diesel engines, inspection and maintenance take about two to three times longer, but these can be gradually overcome through training... In fact, to sum up, although I dont like bad things, it will be troublesome if they are broken. Hearing this, Chang Haonan suddenly had an idea and looked at Lei Zhixing and Liu Fangping who had been following him: Should the Equipment Condition Monitoring and Automatic Fault Diagnosis (ECM&FD) system we previously developed for LNG ships be transplanted to this frigate? After Chang Haonan developed a usable manifold learning algorithm, the first application scenario that came to mind was risk and fault diagnosis. ? Its just that this requires a large number of sensors to provide data. According to the technical level in 2000, it is difficult for aircraft, at least small and medium-sized aircraft, to meet this requirement. So this system was first used on LNG ships The complete reliquefaction system of boil-off gas will affect the structural design of the entire ship. Even for Gas-Transport cargo tanks with safety redundancy, they still face certain risks. ??And if the core data of the entire ship, including cargo tanks, power systems and hull structures, are integrated into the new system, this risk can be estimated in advance. ?For example, if a valve on the ship is at risk of failure due to disrepair or improper installation, it will have a certain impact on the pipeline pressure data of the upstream and downstream, and even the entire ship. In the past, it was difficult to find this effect from the large amount of data noise using manual verification alone. Often you have to wait until the valve really fails before you can make up for it. But with the ability to extract data, targeted early prevention becomes possible. It seems that similar systems can be installed on warships after simple debugging. ?The cost of applying it to the entire ship like LNG ships may be too high, but it is not a big problem to only use it in the power system. In this way, the man-hours consumed in the maintenance process will be greatly reduced, and the risk of failure will also be reduced accordingly. From the perspective of the cost of the whole life cycle, it is definitely profitable. (End of this chapter) Chapter 854 normal hanging hair Chapter 854 Normal hanging hair For the purpose of keeping secrets and preventing destruction by enemy agents, the military and civilian operations of the Hudong Plant are physically separated. In addition, Lin Qing is from the 701 Institute after all, so he has always been concerned about the LNG ship project. The degree of hearing. ??As for the specific technical solution details such as Gas-Transport cargo tank and boil-off gas re-liquefaction system, we have no understanding at all. Therefore, when he heard the straightforward name "Condition Monitoring and Automatic Fault Diagnosis System" for the first time, he suddenly became energetic: In order to meet the maintenance needs, we specially left some space margin for the power cabin during the design. If sensors are needed... Obviously, this feature is very useful for the current new frigates. ?However, Chang Haonan waved his hand: The sensor is definitely not installed in the power cabin, so it cant detect anything. It must directly cooperate with the power system itself. With the power system itself Lin Qings face stiffened after hearing this: Does this mean that these two gas turbines must be dismantled and rebuilt? ?Now that the ship segments are nearly fully assembled, if the equipment in the segments is modified again, it will inevitably affect the launch schedule. This is a considerable loss for the first ship of a model that undertakes considerable testing tasks. Uhthats not necessary. Chang Haonan quickly explained: "After all, the QC130 is the basis of the turbojet 14. The electronic control issue was taken into consideration when designing it, so it can be modified in situ. However, because you do not have a unified power control system for the entire ship, this function cannot be integrated into the bridge or Its inside the CIC and can only be viewed in the engine room. ? ?This reply made Lin Qing relieved: It doesnt matter, anyway, the engine room of a warship must be manned, and we only use this function mainly during maintenance. ?Theoretically, the power system of modern ships is directly controlled by the bridge part, so it can work unattended. ?However, warships must consider special circumstances and set up special engine duty posts. ??Its just that there is no need to operate the engine or even fill the boiler with coal according to the command from the bridge as before. ?This is why a warship of several thousand tons usually has dozens or even hundreds of crew members, while a cargo ship of 100,000 tons or even hundreds of thousands of tons may only have 20 or 30 crew members. It was only then that Lei Zhixing, who was first asked by Chang Haonan, intervened: "Mr. Chang, from the perspective of system hardware, there is no problem. However, we have never done gas turbine parameter calibration before, so if we want to achieve complete functions, I am afraid we have to cooperate with the turbine design unit and the shipyard. " Before the words could even be finished, Lin Qing and the engineer surnamed Liu next to him expressed their opinions almost in unison: No problem, we will definitely cooperate with you on business matters! ?Wu Wentao next to him also agreed. ??Anyway, at the group level, the shipbuilding industry and aviation power have already begun cooperation on the LNG ship project, so there is no need to have another one. Wu Wentao concluded. Nomy main concern is efficiency Chang Haonan sighed: This system is still in the development stage. Ordinary employees of Torch Group are not very familiar with it. If we only rely on the two of them, it will be a bit troublesome to run both ends. "Um" ?Lei Zhixing and Liu Fangping also nodded slightly. ?Physically, it is not bad to run from both ends. After all, they are both at the Hudong Shipyard, not far away. But not everyone can handle work with multiple threads like Chang Haonan, so working on two similar but different projects at the same time is likely to result in confusing both sides and causing chaos together. "How about...Professor Chang lend us the new doctoral student in our group for two days?" Liu Fangping, who usually rarely talks, suddenly suggested: "I''ve talked to Wang Jie before. Like Lei Zhixing, he also has a mechanical background, and he has studied the fault characteristics of rotary mechanical equipment during his master''s degree. However, he has never been exposed to the theoretical concept of high-dimensional data dimensionality reduction before, so he should get started. Its pretty fast. ? ? "This..." ? ? Chang Haonan hesitated for a moment: Ill ask for his opinion when I get back. We still have to refer to the students own opinions in the field of research. If it doesnt work out, I plan to recruit a group of postdocs and researchers in a few months. Anyway, the technology is in our hands, and there is always a solution to the manpower problem. Alright ?Lei Zhixing nodded: Anyway, the progress of shipbuilding cannot be seen in three days or two. Mr. Lin, you will continue to advance the project according to the original schedule. When the warship is outfitted, we will solve the problem of the power system simultaneously with the ship surface operations? ?Chang Haonan looked at Lin Qing next to him. "Can." Since it will not affect the progress of the project itself, the latter naturally has no objection. ?After visiting the construction of the entire ship, considering that it was still early, Wu Wentao and Lin Qing took Chang Haonan to the equipment warehouse and took a look at the 3K95 ship-to-air missile system that had been delivered. That is Doyle of Haiji. It''s just that the appearance of this set of things is a little different from what Chang Haonan remembered... I remember Chang Haonan looked up at the four sets of launch boxes in front of him and asked in surprise: This 3K95 launcher should have 8 rounds arranged in a cylindrical shape? Yes, thats the original version. ?Lin Qing nodded: Eight rounds of ammunition, similar to the cylinder of a revolver, but there is only one firing port and a rotating mechanism below. But we dont understand why we need to use this strange launch method, which neither saves space nor cost, and also increases the complexity of the system out of thin air. ?Just after he finished complaining, Engineer Liu next to him added another sentence: Furthermore, the land-based 9K330 actually already has a set of 8-link launch boxes with mature technology, but even so, the Soviets still designed... such a thing for their navy." In fact, Chang Haonan heard relevant analysis a long time ago and believed that the reason for this peculiar design idea is because the Soviet-style sea-based vertical hair, whether 3K95 or long-range S300F, is a direct replacement of the single/double arms of earlier years. The product of the launcher. It is equivalent to hiding the launcher directly under the deck to prevent high sea conditions from adversely affecting the missile and launch system. ?Under this idea, it is almost a logical idea to share one launch port for 8 rounds The 9K90 single-arm launcher on the modern level has only one firing position for 24 rounds of ammunition. ?Its just that later people have seen Aegiss kind of hanging hair, and looking back, of course they find everything strange. So you just got four sets of Luji Doyles hair hanging devices? Chang Haonan looked at the four rectangular metal boxes and found that they did look a bit like the ones from 9K330. Its not directly from the Army. ?Lin Qing explained: Actually, the Russians themselves thought that the rotating launch mechanism was very strange, so they had already designed this kind of 8-unit vertical launcher. However, they never launched new ships, so they had no place to install them. After we learned about this situation, we packed this set of equipment back together with several battalions of 9K330s and some related technical information... Even if the 054 is replaced with a larger domestic vertical launcher that can launch medium-range or even long-range missiles in the future, this relatively small close-in defense system will definitely have its place. (End of this chapter) Chapter 855 Patent technology cooperation Chapter 855 Patent Technology Cooperation New medium-range missile Chang Haonan naturally knew that Lin Qing was referring to Hai Hongqi16. That is, the model after the technological introduction and upgrade of the modern-level 9M38 anti-aircraft missile It is different from the expectations of many melon-eating people at this time. ? ? Chinas introduction of the 956 destroyer is not, or at least not primarily, for anti-ship capabilities. 8 anti-ship missiles with a range of less than 150 kilometers cannot pose any threat to the enemy fleet unless they are in special terrain. Instead, they are interested in the air defense system it carries. Although the 9K37 air defense system is a mid-to-low-end model in the Red Navy series, for the Chinese Navy from the late 1990s to the early 21st century, an air defense system with sufficient ammunition, a range beyond visual range, and the ability to deal with multiple targets at a time Missiles are already the "mainstay of fleet air defense". ?However, if you count the time. In February this year, the first modern-class ship introduced by China officially returned to China and entered the fleet. The design plan of 054 had been frozen half a year before that. But from what the other party said just now, it seems that the replacement of new missiles has already been considered? Of course, Lin Qing next to him didn''t know what Chang Haonan was thinking about. He just saw the latter lowering his head and looking confused. Naturally, he thought that as an aviation technology expert, he had never heard of medium-range anti-aircraft missiles, so he took a step forward. explained: "A few years ago, when we went to negotiate with Russia about the introduction of Type 956 destroyers, the Northern Design Bureau probably also wanted to refer to the cooperation between your... um... their aviation industry and the Sukhoi Group, and came up with an upgraded version of the 956U The plan is to replace the AK130 naval gun at the back with three groups of 3S14 vertical launchers. The delegations judgment at that time was that the new Russian-made ships might not be reliable, and the plan had to be changed a lot, and it would take extra time to perfect. We couldnt afford to wait, so we didnt agree in the end and just bought two ships. The semi-finished 956, and then the purchase rights for the other two are reserved. "But later we felt that although the warship itself was not very good, the vertically launched 9M38 anti-aircraft missile solution was quite good, so after returning to China, on the one hand, we advanced the timetable for the introduction of the 9M38 missile, and on the other hand, we also began to plan new types of hot and cold missiles. The total depth of the vertical launch system is about 6 meters. For this purpose, the 054 has also made a modification to the deck structure of the bow, leaving a total of about 6.5 meters of space on the three decks. " Speaking of this, Lin Qing raised his finger and pointed at the launch boxes of the 3K95 units: Otherwise, just to install such a small thing, there is no need to open up the second deck, or even move the entire hanging hair to the deck... ?Chang Haonan probably compared the hanging hair in front of him with the frigate he just saw. ??It was found that the size of 3K95 can indeed penetrate only the first deck without affecting the inner space of the ship below. ??It is quite suitable to be installed in the corners of some large ships wherever possible, serving as an ecological niche similar to the future sea sparrow. That is, it is between a serious medium-range air defense missile and a single-channel lightweight air defense missile that can only be used for terminal close defense and is essentially equivalent to a close-range anti-aircraft gun upgrade. So... after the new air defense system is finalized, the 054 can replace the 3K95 with a new vertical hair without moving the hull at all? Chang Haonanxin said: Doesnt this realize the modular function of warships that Americans still draw on PPT ahead of schedule? ?But Lin Qing still shook his head: If you want to replace the 054 that has already been built, you still have to move it, at least remove the counterweight left underneath. But if a new ship is upgraded, there is basically no need to go through the design process again. Its just that we havent thought about it yet. We will dismantle all six groups of 3K95 and keep two groups for short-range point air defense..." Chang Haonan didnt ask any more about the hair loss issue. On the one hand, vertical development is more important than specific technical research, but the route selection is more important. ? ?Hairs of different types and sizes are not superior or inferior in principle, as long as they can adapt to the development route of the country''s navy''s ship-borne weapons, it is good. On the other hand, China''s vertical launch system developed relatively smoothly in the last generation, and now that the Russian-made revolver launch system has been replaced by a launch box, the one on the 052C that was greatly affected by the S300F is obviously not The H/AJK03 vertical hair, which has a revolver structure but is still designed with a circular platoon, should also go in a relatively "normal" direction. In this case, there is no need for him to allocate his already scarce time and energy to this. ?After visiting the frigate, Wu Wentao took Chang Haonan and his party to visit other areas of the Hudong Shipyard and the factory history museum. ?But these parts are purely routine for welcoming guests. Its really not very attractive. ?Of course Wu Wentao also knows this. So after going through the motions, Chang Haonan and the others were sent back to their residence in the name of "arranging a rest." The signing ceremony was arranged together with the dinner the next day. In the auditorium of Hudong Shipyard. ?In addition to representatives of the aerospace power group and the shipbuilding industry, also attending the ceremony was Karim Chapo, a technical representative sent by the French GTT Group. At the very beginning, Hudong Shipyard actually had the idea of ??loading the Gas-Transport cargo tank separately. ?However, if it really comes to this point, it will basically be a lose-lose situation for both Hudong and GTT. So when it was time to get started, GTT chose to join the project and provide relevant technologies in cargo tank design for the first LNG ship produced by Huaxia. After all, for GTT, which holds more than 90% of the patents related to membrane cargo tanks, this can be regarded as a supplement and cover for the more radical Technigaz technology. ??Anyway, everyone knows that as long as this ship can be built, even if it is less economical, China''s own oil and gas company will take over. Even if you dont make a profit, you are unlikely to lose money. The ceremony itself is quite brief. First, the three companies sent people to give speeches respectively. Among them, only Karim Shapo took a little longer because he reviewed the development history of GTT Group and promoted the huge advantages of membrane cargo tanks compared with other technical routes. , the remaining two sides were completed within five minutes. Immediately afterwards, amid ribbons and cheers, representatives of the three parties signed a cooperation agreement in triplicate. Then, the three shook hands with each other and drank champagne together. Although from a commercial perspective, we at GTT Group are not very optimistic about the prospects of Gas-Transport cargo tanks, we still wish our project all the best. ?Karim Shapo held the wine glass and clinked it with Wu Wenhao and Chang Haonan respectively: Furthermore, from my standpoint as an engineer, it is your first time to come into contact with the complete construction process of an LNG ship, so it is indeed more appropriate to choose a relatively conservative technical route. Trust me, Mr. Chapeau. Chang Haonan replied: Technological conservatism does not necessarily mean backwardness. My colleagues have calculated that as long as the efficiency of the boil-off gas reliquefaction system is high enough, the cost of the Gas-Transport cargo tank in terms of size and weight can be compensated, and it will have additional advantages in terms of safety " "Um" Karim Shapo pondered for a moment, obviously having reservations about Chang Haonans opinion. ?But it was a celebration after all, so he didnt say it very directly. He just answered from a technical point of view: But I have seen the boil-off gas reliquefaction scheme you proposed. It will have an impact on the hull structure. In order to truly offset the economic disadvantage of the Gas-Transport cargo tank, a system with at least 85% reliquefaction level is needed. ? Boil-off gas is the main loss of LNG during transportation, so GTT has been conducting research in this area for a long time. As a core technical staff member, Karim is naturally familiar with these data. But so far, the main idea of ????GTT is still to give full play to its own strengths, start from the source, and reduce the amount of leakage as much as possible. But this kind of thinking has its limits after all. At the level of Gas-Transport and Technigaz technology, it is already difficult to continue to advance. Hence, the reliquefaction system will definitely be the next focus of research and development. ?This is another reason why GTT chose to join this project in the endno matter whether the Hudong factory can succeed or not, it can be regarded as a useful attempt. Anyway, at least there is a way forward, isnt it? ?Chang Haonan just smiled and did not explain more. Karim currently only knows that China plans to apply a reliquefaction system on this LNG ship, but he still knows nothing about the equipment status monitoring and automatic fault diagnosis technology provided by Torch Group. ?So...Chang Haonan thought it would be better to let the other party know later. First of all, you can give the other party a huge surprise (scare) when the time comes. Secondly, the relationship between GTT and Japanese and Korean companies such as Samsung Offshore and Oshima Shipbuilding is quite close. Even if Karim had no subjective intention, it would be difficult to keep complete confidentiality from his colleagues. Thats why its essential to be on guard against others. Especially. ?According to his experience before his rebirth, Koreans have a bad record in this regard. Thats true Of course, Karim didnt know that he was still in the dark, so he just clinked glasses with Chang Haonan again. Then drink the champagne inside. (End of this chapter) Chapter 856 The Varyag returns home Chapter 856 The Varyag returns home At almost the same time, Chang Haonan attended the signing ceremony of the cooperation project. Liao Province, Dalian (bushi) Ahem Lianhai Shipyard. ?Under the setting sun, a pilot boat leading two tugboats gradually appeared in the sight of everyone on the shore. ?Following the entire fleet, a rusty behemoth gradually emerged from beyond the horizon. Since it was still prohibited from passing through the Suez Canal, after a long journey of more than nine months, the tugboat team headed by the Nikolai Chikel finally towed the Varyag to the end of its journey. destination. ?Even those who have not personally experienced the difficulties and obstacles along the way can tell from the logbook submitted by the mission leader Zhu Yuzhou. ?Especially when this behemoth, which has neither power nor rudder, is circling the African continent. Since the Cape of Good Hope happens to be located at the confluence of the warm Agulhas Current and the cold Benguela Current in Mozambique, rough waves are constant all year round. When the tug fleet passed by, the huge waves almost knocked off the tow rope behind the Nikola Chikel At this time, the fleet had no choice but to hire a second tugboat, which managed to control the course of the Varyag despite the harsh sea conditions and prevent the giant ship from drifting away with the current. Later, when passing through the Horn of Africa, what everyone was most worried about before the trip happened happened again. The entire tug fleet is being targeted by pirates, or at least suspicious vessels that appear to be pirates. Finally, it was rescued by a patrol ship from the Saudi Navy... Later, he experienced a series of obstacles such as being maliciously blocked in shipping routes and getting permission to pass through the Strait of Malacca before finally returning to the embrace of his motherland. ?Just before entering the port, the pilot ship and the tugboat Nikolai Chikel sounded a long whistle at the same time, paying tribute to the nearly 100 navy and comrades in the shipbuilding industry system who were waiting eagerly on the shore. The crowd on the shore also responded with enthusiastic cheers. In order to reduce the international impact as much as possible, China did not invite any media to report on this matter. ??Only a few comrades from the military newspaper and the shipbuilding heavy industry propaganda department took a few photos from different angles for documentation. ??On Pier 1 of Lianhai Shipyard. Sun Suguang, together with several other colleagues and technical consultants from the Black Sea Shipyard, stood on a high platform and looked at the Varyag, which was slowly approaching the outfitting dock next door. This naturally includes Valery Babbage. ? As early as the beginning of the year, he had already arrived in Lianhai under the arrangement of Wu Yifan, and later participated in the technical research of several large-scale shipbuilding projects with other engineers also from the Black Sea Shipyard. In a consultant capacity, of course. Until about a week ago, five people, including him, were suddenly notified. Handover the project at hand immediately. Then, just two days later, they were arranged to live in a villa area in the outer suburbs. Then, its today. You...should be really planning to continue building this ship, right? ??Babic asked Sun Suguang, who was standing not far away. Actually, of course he knows the answer ??Although Huaxia has purchased several decommissioned aircraft carriers through different channels before, as an insider who participated in the whole process, he can clearly feel that the situation this time is different. ??Technical data on the aircraft carrier itself, relevant personnel from the Black Sea Shipyard and Azov Steel Plant, and the "Nitka" aircraft carrier training facility... ??If you dont make up your mind to continue the construction based on the Varyag, then there is no need to spend a lot of money and energy to introduce these supporting things. There is no need to hurriedly pull over several of their senior technical staff who have participated in the 1143 project. However, when Babbage really saw this old friend reunited after a long absence after more than half a year, he still couldn''t help but ask this question.????He wanted to confirm again. "certainly." Sun Suguang turned around and looked at Babic, who was trembling slightly with excitement: At the beginning of this year, higher-level units and the navy have made this requirement clear. We in China already have the technology and experience to build a large 60,000-ton ship based solely on military specifications, but aircraft carriers are, after all, a complex and brand-new subject. So compared to starting from scratch, continuing to develop on the existing basis will be more efficient and reduce a lot of trial and error costs. This is exactly why we invited you here. When hearing this answer from the interpreter, Babbage couldn''t help but breathe harder. After a while, he looked back at the Varyag that had docked on the shore: If possible, I hope we can organize manpower as soon as possible to start surveying the entire ship. At this time, another person next to him interrupted: The technical information we got before should contain the design drawings of this ship, right? There should be drawings. ??Babic nodded: However, this ship has been idle for nearly ten years, and some equipment has been dismantled several times during this period. "In addition, for about five or six years in the middle, the docks of the Black Sea Shipyard were unattended, so there must be some things stolen by people who boarded the ship privately. In these cases, whether it was me or anyone else, , it is impossible to fully grasp it. "When you proposed buying this ship two years ago, I also considered conducting an inspection of the entire ship, but I simply couldn''t organize enough manpower. This ship has 20 floors and more than 3,000 cabins. It''s impossible to rely on just one or two people. Finish" After hearing his explanation, Sun Suguang immediately replied: Our project team needs to mobilize technical personnel from the shipbuilding industry system across the country, so it is still being formed. The manpower... may not be sufficient at the moment. But the most important ones on the ship should be the cabins related to power, aviation, and weapon systems. I can send about fifty people first, starting from these key positions. After the project team is formally established, I will send some more people. ??Babiqi suddenly felt a sense of happiness welling up in his heart. ??He has not experienced this feeling of organizational support for his work for many years: "Actually, fifty people are enough... I originally wanted to ask you for twenty or thirty people at first..." ?Sun Suguang and several other colleagues looked at each other, and they all saw a little shock in each other''s eyes. Just now, Babic said that he did not have enough manpower in the past few years. They all thought that the other party might need a team of several hundred people. ??After all, there are hundreds of people in such a large Black Sea shipyard who were hired by Wu Yifan to earn money from China and who finally passed the review and stayed. As a result...we couldn''t even organize twenty or thirty people? Obviously, the consequences of a complete collapse of the grassroots organizational structure are beyond the imagination of those who have not experienced it. Previously, everyone was basically using the massive layoffs in the country in the past two years as an analogy. But looking at it this way, it seems to be completely different... ??Babic looked at the people around him who suddenly fell silent, a little confused. ?However, after a slight pause, he continued: "The other thing is, if you really plan to use an aircraft carrier, then the research and development of carrier-based aircraft...or procurement should start almost at the same time. Otherwise, if there is only one ship, it will not be able to play its role." Carrier-based aircraft Hearing this, several people around him smiled: Based on my experience over the years, I think what we should be worried about is whether our progress here will be too slow..." (End of this chapter) Chapter 857 eye of the earth Chapter 857 Eye of the Earth After the signing ceremony of the tripartite cooperation, the Hudong Factory arranged a series of project seminars in the following days. That is to say, the personnel responsible for technical issues from the three companies are brought together to explain in detail the current pre-research status, design goals and subsequent work task allocation of the LNG ship project. ?According to the original plan, although Chang Haonan did not personally participate in the project, he was still planning to attend the seminar and return to the capital in a few days First of all, this is the first time that Lei Zhixing and Liu Fangping have taken on such a big job alone without anyone to take care of them. Secondly, this is also the first time that the condition monitoring and automatic fault diagnosis system he developed has been put into specific application scenarios. ?However, plans cannot keep up with changes. Just after the first seminar, he received a call from Professor Meng Zhenyuan in the afternoon of the next day. Comrades from the Huaxia Geological Survey have completed the first three sets of geological survey and brought the obtained samples back to the capital. At present, analysis and testing of basic projects are underway. So, after much thought, Chang Haonan decided to terminate his trip to Shanghai in advance. Two days later. Institute of Geology and Geophysics, Chinese Academy of Sciences. ??When Chang Haonan returned to the capital for a short rest and then rushed here, Meng Zhenyuan and Li Nianheng had been waiting in a conference room for some time. In addition to them, there are also more than a dozen technical staff from the Geological Survey and the institute. Hello, Professor Chang. ?Seeing Chang Haonan walk in, a middle-aged man sitting at the head of the left side of the conference table immediately stood up, shook hands with the former, and then introduced himself: I am Zhai Mingguo, a researcher at the Institute of Geology and Geophysics. I mainly study metamorphic geology, tectonic evolution and igneous petrology. I am responsible for presiding over the analysis of the results of this exploration. Of course, I will also cooperate with your work in an all-round way. While speaking, he had already led Chang Haonan to the main seat at the conference table. Chang Haonan was slightly surprised by Zhai Mingguo''s statement. After all, generally speaking, for this level of cooperation, an academician will usually be assigned to the other side. Even if you are not responsible for specific work, you can still play some role in securing resources. At the same time, it can also prevent the unit from being squeezed out or marginalized. But looking at the posture in front of me, it seems that there is no such person. Otherwise, a researcher would not be allowed to take the lead. But this is not a bad thing for Chang Haonan. After all, although he is not yet an academician, he no longer needs to rely on other peoples names to secure resources... Since it is a collaborative research, it is natural to cooperate with each other. ?After Chang Haonan sat down, he said a few more polite words to the other party. Then we got to the point. ??A representative from the Geological Survey first walked to the small podium at the other end of the conference room. A PPT was quickly projected on the screen. Comrades, I am the deputy leader of this round of geological exploration team, and also the leader and person in charge of the exploration mission in Alxa area in western Mongolia Province, Xiao Wenchang. Let me briefly introduce our exploration mission... "Due to problems with manpower, equipment and funds, according to the requirements of Professor Chang and Engineer Li, we first conducted research on the Loess Plateau area in eastern Longyuan, the desert area in Alxa in western Mongolia, and the perennial snow and ice at the northern foot of the Tianshan Mountains. The modern glaciation zone has been explored in 3 groups, 9 target areas, and a total of 413 detailed points..." On the remote sensing satellite image that underwent data dimensionality reduction, a total of nearly 80 abnormal points were counted. But that is a very small-scale image after all, so each "point" reflected on the map is actually a task area for the exploration task. In each area, dozens or hundreds of exploration points must be determined, and hundreds or even thousands of exploration operations must be carried out. Therefore, it is indeed quite difficult to take care of 9 areas with 3 types of terrain features at one time. From February of the beginning of the year until now for half a year, the entire exploration team has been exposed to wind and sun in the wild almost all the time. This can be seen from Xiao Wenchang''s skin color - the exposed parts of his face, hands and neck are completely different colors from his arms. The situation of the other two team leaders in the conference room was basically the same. Therefore, after his explanation of the exploration mission came to an end, the audience almost immediately burst into warm applause. The following part is the result of our on-site analysis of the samples from the exploration site. When the applause gradually faded, Xiao Wenchang calmed down a little and then continued: The first is the Alxa area that I am responsible for, with a total of two areas and 80 exploration sites. At the same time, the screen switched to the map that Chang Haonan was so familiar with, and then zoomed in to the westernmost location of Mongolia Province. ?There are two signs there not far apart. Based on the results provided by remote sensing satellites, we conducted multi-point surveys from the outside to the inside of the Badain Jaran and Tengger Deserts. The specific results are as follows "Due to the existence of weathering, there is no obvious difference in characteristics between the two deserts at the surface, that is, within the depth of 0.5-2 meters. However, at deeper locations, especially above 3 meters, we observed that the two deserts have different characteristics. There are obvious differences in the moisture stratification of each area. In addition, thanks to the guidance of remote sensing satellite images, we were fortunate enough to discover an ancient river system in the southeastern part of the Tengger Desert that we have never paid attention to before, which is also an unexpected gain..." ?Xiao Wenchangs tone on the stage gradually became excited. For an old guy like him who has been in the industry for more than 20 years, this mission definitely brought a new work experience. In the past, geological exploration was largely a matter of luck. Because this kind of work is a three-dimensional work. ? It may not look like a big place on the map, but if you really want to send people in, then with different sampling methods at different locations, depths, and a complete set can be considered extremely efficient in half a year. ??If you encounter some difficult bones to crack, it is common for you to work on it for two to three years or even longer. This does not include the risks involved in the process. And after a quick operation, there is a high probability that nothing will be discovered, and it will be in vain. Send at most a few papers for submission. To obtain some truly meaningful results, it often takes several or even dozens of rounds of exploration. Basically runs through a person''s career. But this time, he experienced what it means to be targeted. ?While the exploration process itself remains arduous, it does pay off. ??He was given several target areas above, and after a round of exploration, he discovered a lot of new things... ??If this efficiency can be maintained in the future, then Xiao Wenchang feels... Considering that I still have about ten years before I can no longer do anything and retreat to the second line, the academician seems to be waving to me... "In short, we preliminarily speculate that it may be due to differences in water content stratification that the polarimetric SAR signal undergoes different degrees of scattering and refraction during the process of penetrating the sand layer, so it appears differently on the satellite image. Signal response At this point, Xiao Wenchang paused for a moment, picked up the cup on the podium and prepared to take a sip of water. Li Nianheng, who had been silent just now, suddenly intervened: Leader Xiao, please wait a moment, I have a question. Because this is a normal academic exchange meeting, not a project defense, it is not necessarily necessary to wait for everyone on the stage to finish speaking before focusing on asking questions. Although different moisture stratification conditions will indeed affect the results of SAR detection, if this is the only reason, then we should be able to analyze it directly even using conventional methods. The actual situation is that the first round of analysis we conducted did not show any difference between the two areas. It was not until Professor Chang processed it with a new calculation method that we discovered that there was a significant difference in the feedback signals from the two areas. " So, Im afraid there are deeper reasons (End of this chapter) Chapter 858 The value of space remote sensing Chapter 858 The value of space remote sensing Well...thats it. Xiao Wenchang put down his water glass and walked back to the curtain: Our exploration unit has to constantly change working locations, so we are unable to conduct particularly complex tests. Especially because the properties of geological samples related to desert conditions are relatively stable, we are more inclined to send more tests to the capital for testing. As he spoke, he turned another page of the PPT. The above are several other physical and chemical data of samples from two areas. ?Of course, as Xiao Wenchang said, they are all very basic or items that are not convenient for remote testing. Such as particle composition, hydraulic properties, conductivity, pH, etc. Either there is no change, or the change is irregular. In short, they do not show particularly obvious research value like the deep water content just now. At this time, Zhai Mingguo, who had just been sitting on Chang Haonan''s left hand side, then spoke: Originally, we planned to have all three comrades from the geological exploration team take the stage, and then it would be our turn. But I see that Mr. Li is so eager to hear it, why dont we just change the order? The slightly joking tone made the atmosphere in the conference room suddenly become more relaxed. ??Although Zhai Mingguo used an interrogative sentence and was speaking to Li Nianheng, he was obviously not consulting the latter''s opinion. Thats good, so that the conditions of each terrain can be explained together. Chang Haonan nodded: Otherwise, if we wait a little longer, by the time you tell us the detailed test results, you may have forgotten many of the things mentioned earlier. ?Seeing that his proposal was agreed, Zhai Mingguo immediately looked at another young man opposite who was still wearing laboratory clothes: Xiao Lu, go up and report what you have discovered during this period to your comrades! Sample testing is not started after the exploration team returns, but is collected and tested as needed. So even though the first round of exploration only ended three days ago, most of the test results have actually come out. ??The young man named Xiao Lu stood up immediately: "yes!" ?Then he strode towards the podium with rapid strides. ?Seeing this scene, Chang Haonan also sat up slightly - ??Although the content of the conversation between the other two seemed ordinary, considering the tone and demeanor of the words, it was obvious that they had a big bottle in their hands and were ready to take it out and shock their peers for a whole year. Comrades, my name is Lu Jinhui. I am responsible for analyzing all samples from two areas in the Alxa region. Specific projects include..." ?Lu Jinhuis voice was slightly trembling. He does not look much older than Chang Haonan. He must have just entered the institute and does not have much experience in dealing with big scenes. Now that I suddenly face so many colleagues and seniors, I am inevitably a little nervous. ?After a brief opening remarks, Lu Jinhui went directly to the topic. "After the sample is naturally air-dried, it is passed through a 2mm sieve to determine the composition of sand particles; it is passed through a 0.25mm sieve to determine the soil organic carbon content and total nitrogen content; a cylindrical shape with a diameter of 75cm, a height of 150cm, and a rubber film is used. Sand column, used to determine the effective stress of dry sand As the content deepened little by little, his speaking speed became much smoother than at the beginning. From the test results, we found that the Tengger Desert, especially the relatively concentrated 19 deep sampling samples on the southeast side of the Tengger Desert, which we call the Tengger Group A, has relatively special physical properties. "Of course, the two research objects this time, Badain Jaran and Tengger, actually have some characteristics that have not been noticed before, so the specialness I just mentioned is compared to the typical deserts that have been studied more in the past. In terms of shallow surface sand. Speaking of this, Lu Jinhui turned around and clicked the mouse. Two photos that were obviously magnified by a microscope were projected on the screen. They looked like two large and small grains of gravel. The larger one appears angular in shape, while the smaller one is relatively smooth, closer to a perfect sphere. There is also a series of tables below each of the two pictures, above which is a series of physical and chemical property data. ?Lu Jinhui paused for a moment to give everyone time to read the content on the PPT clearly, and then continued: Generally speaking, because desert sand is subject to weathering all year round, the particles are finer, the outer contour is smoother, and it usually contains a higher proportion of harmful salt components, so it cannot completely replace river sand as a building material. "However, after analysis, it was found that the sand particle samples in Group A present a crystal structure of silica, which has potential volcanic ash activity, so it can be used as a substitute for cementitious materials to a certain extent, although its gradation is still relatively average. But the chemical composition and mineral composition are relatively close to river sand..." "In addition, we also conducted a sand foundation bearing capacity experiment and found that the shear stress of the sample in area A increased instantaneously after the loading strain rate was increased instantaneously, but it will gradually fall back to the original loading curve as the loading process..."?????Simply speaking Lu Jinhuis discovery is that the desert sand in this area has the potential to replace river sand as the fine sand and medium sand in concrete components, but further experiments on blending and modification are needed. ?From this point of view, the excitement shown by Zhai Mingguo just now is understandable. Although river sand is not a scarce resource at the moment, with the acceleration of urbanization across the country and the rapid rise of the real estate industry in recent years, pure natural building materials will one day be no longer available. Meet the huge demands of the construction industry. However, compared with river sand, desert sand is inexhaustible. Even if it is just an area in a desert, it still has huge development potential. Even though desert resources belong to the country and cannot be directly monetized, for researchers like them, that is not the point. In recent years, it is relatively easier for projects related to large-scale infrastructure to participate in the review of national science and technology awards. ?Furthermore, national science and technology awards are a necessary condition for promotion to academician status... I work at the Chinese Academy of Sciences, and the Institute of Geology and Geophysics has just been merged, and there is no work to do. It is normal to have such thoughts. ?However, understanding is understanding. ?Chang Haonan was a little disappointed ?This is indeed likely to lead to a series of significant results, but it is not an area of ??interest to him. Of course, just a little bit. After all, Lu Jinhuis test results have proven the effectiveness of data dimensionality reduction technology. And as long as you have this first application, you dont have to worry about the second or third time... You must know that high-order data dimensionality reduction is the same as numerical calculation methods and belongs to the methodology level. It is also enough to support another tool system similar in size to TORCH Multiphysics. Even, a new industry. As long as it can be promoted, there is no need to worry about discovering what Chang Haonan is really interested in. However, it can be seen that most people are still very interested in this result. ??While Lu Jinhui finished introducing this paragraph, someone quickly raised a question: "Xiao Lu, I saw that you tried several sets of concrete samples prepared by mixing desert sand and river sand. The strength is average, but the toughness seems to be good?" "This... our research is mainly about geology, not civil engineering, so I just released these concrete samples to give you a reference." Lv Jinhui replied: At present, we can only say that the specific characteristics are related to the blending materials and ingredient ratio. We cannot draw a conclusion based on several sets of test results. If there is such a high-tenacity building material, it will be useful in the permafrost we are responsible for exploring, and it can be used as a foundation or roadbed. Well, there are also soft soil foundations in coastal areas. You can also consider using this material for modification..." Everyone was talking to each other, and the lively discussion lasted for about twenty minutes. ?Although Chang Haonan had little personal interest, he did not say anything to stop it. First of all, listening to other peoples research content and inspiration is also part of research. ?For example, the idea of ??using high-toughness materials to modify the foundation seems to be very suitable for the Huaxia Petroleum Pipeline Bureau to reduce the engineering difficulty in the pipeline laying process. After the heated discussion came to an end, Li Nianheng finally spoke again: Researcher Lu, in addition to the characteristics of the samples from Group A of the Tengger Desert, I remember you just mentioned that the deep samples of the Badain Jaran Desert also have some parts that are different from what we have known in the past? As an expert in the field of satellite remote sensing, he still wants to know the special characteristics of geological areas that exhibit different signal characteristics. Because, if some rules can be summarized from it, it will be a shot in the arm for the entire space-based remote sensing industry. Around 2000, the overall scale of the aerospace industry was small, and its importance in the national economy had not yet been fully reflected. Simply put, it is still in the investment stage of long-term investment and has not seen any obvious results. Therefore, superiors still have some concerns about spending a lot of money on aerospace. ? And if he can produce some powerful results, he and his superiors will be more confident in the future when they ask for the launch of more remote sensing satellites. (End of this chapter) Chapter 859 Can the desert become fertile land? Chapter 859: Can the desert...be turned into fertile farmland? After Li Nianhengs question, the entire conference room finally returned to the relatively serious atmosphere at the beginning. Lv Jinhui also switched to another PPT immediately. "The samples from the Badain Jaran Desert are also divided into three groups: A, B, and C according to the distribution of sampling points. The characteristics of the three groups of samples are consistent. Among them, group B is the southern part of the desert close to the northern foothills of the Qilian Mountains and the A The right flag part has the most obvious characteristics, so I will use it as an example to explain..." "Relatively speaking, the situation of Badain Jaran Group B is different from that of Tengger Group A. Its chemical properties, bulk density, water holding capacity, saturated hydraulic conductivity, porosity and other hydraulic characteristics are similar to those of ordinary deserts. But the particle condition is quite different from typical desert sand. He said and posted two more photos that were similar to the ones before. ??Its just that the object of comparison this time is slightly different. It can be seen that the group B gravel samples on the left are very different in appearance. At least it doesnt look so round. However, due to inappropriate chemical properties and porosity, it cannot replace the role of river sand. Through the same effective stress test as in the previous step, we found that the normal contact pressure and tangential restraining force of Badain Jaran Group B were significantly better than those of Tengger Group A when there were obvious constraints on the sides of the sand column. Other samples are even better than some river sand..." The introduction ended quickly. ?This time, everyones feedback seemed much colder. Mainly... I really cant think of the significance of this feature for a while. After all, the use of sand is inherently narrow. After excluding construction materials, which is the most likely direction to produce results, it seems that only the semiconductor industry is left... Theoretically, it can be used to refine silicon. However, semiconductor-grade sand raw materials need to be relatively pure in composition and have good porosity. However, a lot of magnesium, manganese, and calcium can be detected in the ingredients of Badain Jaran Group, especially the latter two, which are harmful ingredients to the silicon industry, and the sand is relatively compact, which is not conducive to subsequent steps. deal with. In short, it looks a bit tasteless. ?However, Li Nianheng is still quite excited. Because such distinctive geological conditionswhether meaningful or notare very suitable for calibrating SAR signals. Professor Chang, Professor Meng, look, after we go back, can we start to use these data to summarize the patterns? Meng Zhenyuan, who had been an audience member just now, nodded: At least, we can now clearly see that the results obtained after data dimensionality reduction processing can indeed correspond to geological conditions with different characteristics ??Although the person who specifically designed the data extraction and processing algorithms was Chang Haonan, the starting point of everything, that is, the subject of remote sensing data analysis, still bears the name of Meng Zhenyuan. Even under the most stringent conditions, at this point, the project can be considered complete. "Professor Chang, what do you mean..." ?Li Nianheng never heard Chang Haonan''s response, so he turned to look at him. However, he found that Chang Haonan was holding his chin with one hand, looking down in deep thought, but never spoke. There was a brief silence. "Then...if all comrades have no other questions, I will introduce the preliminary situation of the two desert areas first. The following should be the three areas at the northern foot of the Tianshan Mountains. Please..." ??As the temporary host Zhai Mingguo opened his mouth, Lu Jinhui, who was already very satisfied with the presentation of his results, also began to pack up his things and prepare to give up the podium to the next person. ?However, at this moment, Chang Haonan suddenly raised his head again: "etc!" Lu Jinhui paused for a moment in putting away the computer, and then plugged the signal cable back in that had been unplugged. The projector lights up again. Professor Chang, please tell me. In addition to the normal contact pressure and tangential restraining force, have you measured the restraining tension and restraining moment of this set of samples? ?Chang Haonan pointed at the curtain. Restraining tension and restraining moment ?This somewhat awkward question made Lu Jinhui stunned for a moment, and then he shook his head in confusion: No ????In fact, the stress test itself is not an item in the standard testing process. As for the normal contact pressure and tangential restraining force that were already done, he filled them in with reference to papers in geotechnical engineering. Looking at Lu Jinhuis confused eyes on the stage, Chang Haonan organized his words and then explained: If this group of desert sand samples can simultaneously provide normal contact pressure and tangential restraining force under certain conditions... At this point, he felt that verbal description alone might be a bit feeble, so he looked at Zhai Mingguo next to him: Researcher Zhai, do we have a blackboard here? The latter looked around and found that there was indeed only the piece on the wall in the conference room. But it was blocked by the curtain. ?However, it is Chang Haonans request after all, so it must still be met. Within a few minutes, two staff members walked in from the door pushing a small blackboard on a pulley. Chang Haonan was not polite and stood up directly to the podium. ?This action made Lu Jinhui confused about where he should be for a while. Oh...you go down first. Chang Haonan said. Then he turned around, picked up the chalk and quickly drew dozens of small **** on the blackboard, and explained at the same time: Comrades, look. Assuming that sand particles have normal contact pressure, tangential restraining force, restraining tension, and restraining moment at the same time, and can also ensure a certain following degree of freedom, it means that each particle can not only generate restraining reaction force but also react along the restraining force. The direction of the force produces displacement. "And if we enlarge the angle of view, let the sand particles in the entire space have this characteristic, and put them in a rheological state in some way, then any particle can interact with other particles in any direction. A particle comes into contact to create a constraint. Even if the two particles separate, as long as the contact can be restored again, the constraint can be formed again..." ?As he analyzed, the blackboard was gradually filled with white, yellow, and blue chalk marks, and even the small round **** originally drawn on it were difficult to see clearly. In fact, this kind of analysis should be carried out on a computer in a form similar to molecular dynamics simulation. It''s just that Chang Haonan just brainstormed, so now he can only present it on the blackboard. Fortunately, someone below still understood what he meant. "In other words, if there is some way to transform the sand... uh... this type of sand from a discrete state into a rheological state, then the original sand body that is separated one by one will be transformed into an omnidirectional binding force. It can be self-repaired to a certain extent..." Zhai Mingguo has obviously grasped the key points in Chang Haonans introduction. Its just that theres really no way to express it more vividly. At this time, Lu Jinhui, who had returned to his seat not long ago, added the right sentence: The properties will be similar to... No, it will be basically equivalent to soil? As soon as these words came out, everyone in the entire conference room suddenly understood. ??Although the chemical composition of the soil converted from sand bodies is still different from real soil, its physical properties already have the ability to store water, nutrients and air. This is enough. ?As long as the ecological-mechanical properties can be maintained for a long time, the missing things can be made up by artificial means such as precipitation or fertilization. And if we take a longer view... It can even be said that deserts with sand body characteristics close to Badain Jaran Group B have the opportunity to transform into soil with conditions for large-scale production! For China, which is facing serious land degradation and sandstorm problems, this can be said to be a good rain after a long drought. ?Especially in the central and western parts of Mongolia Province and the central part of Longyuan Province, the terrain is actually slopes and plains that are easy to cultivate on a large scale. However, the land conditions are too poor to meet the demand. ??If these parts can really be converted into cultivated land... Everyone looked at each other. Dont dare to think about it. I dont dare to think about it at all. (End of this chapter) Chapter 860 Change the world Chapter 860: Change the world Hundreds and thousands of years. It can even be said that since the emergence of large-scale civilization. Humanity is facing the threat of soil desertification. Especially in recent decades, the rate of land degradation has reached an alarming level. ?Although this process is not completely reversed, it usually occurs during the long wheelbase time measured in centuries. Now, an opportunity, an opportunity to change China and even the earth, at least the possibility, has been placed in front of everyone in the conference room. In comparison, the exploration situation in the latter two areas does not even seem that important. ?Of course, the meeting must be completed as usual. However, everyones enthusiasm for discussion has cooled down a lot compared to just now. Chang Haonan can naturally see this change in the atmosphere. So, after the last group of people introduced their work during this period, he ended directly: Lets do this, Researcher Zhai, please summarize the three sets of analysis and test results just now, including the original data, and give me and Chief Engineer Li a copy respectively. We will do parameter fitting when we go back. Zhai Mingguos requirements for Chang Haonan are naturally clear: "We have prepared these before today''s meeting. A document clerk will send them over when you two leave." Then he changed the topic again: In addition, Professor Chang, I see that there are many other abnormal points on the satellite map you sent. Do we need to organize a second round of exploration immediately? After all, Zhai Mingguo is serious about research. Although his thoughts have already flown to Mongolia Province, thousands of kilometers away, and he wishes others could fly there with him, he will not abandon the work at hand just because of this. What''s more, he also knew in his heart that if the soilification of deserts could really be achieved, at least half of the credit would come from the remote sensing satellite and the high-dimensional data processing algorithm developed by Chang Haonan. So even from his own point of view, he should help sharpen the "knife" faster before chopping wood. ?However, Chang Haonan waved his hand: Not used for the time being. "When we go back and finish the fitting, we should be able to upgrade the algorithm and reprocess the satellite images with the 2.0 version of the algorithm. And by that time, there may be updated images sent back... Anyway, we will decide on the second choice after a while. The specific tasks of round exploration would be more appropriate. At this point, he turned to look at Xiao Wenchang on his right: Besides, I think Team Leader Xiao and the others have been working continuously for a long time. They should take some time off to at least have a complete Spring Festival..." The latter suddenly heard his name and was stunned for a moment before expressing his stance: Well... our team members were used to it in the past..." ?That''s what he said, but when he heard Chang Haonan say that there was a period of rest, several members from the exploration unit still showed relaxed expressions. Who wouldnt want to stay at home for a little longer if possible? ?After arranging tasks that were directly related to him, Chang Haonan added to Zhai Mingguo: "Furthermore, I would like to send a copy of today''s inspection report on the permafrost conditions at the northern foot of the Tianshan Mountains to the comrades in the railway engineering department. When I cooperated with the Institute of Computing Technology last time, I heard them say that in addition to the Qinghai-Tibet Railway, the country also has Plans to build railways in the Tianshan Mountains. Including if there are remote sensing and geographical exploration results related to the Tibetan Plateau in the future, we can also cooperate with them by the way. At the worst, the railway system will have to spend some money from infrastructure funds..." After some arrangements, today''s long meeting finally came to an end, and everyone left the table and prepared to leave. ?However, Chang Haonan specifically stopped Zhai Mingguo: "If we really want to implement this idea of ??desert soilization, there is no hope for us to stay in the capital. Moreover, it also involves land management and agronomy. We are not experts in this field, so we still We need to cooperate with some colleges in the central and western regions that are close to the desert terrain. Do you have any ideas in this regard? " Although geotechnical science and soil science sound a bit similar, the former is earth science and the latter is agricultural science. Even the major categories are different. They are fields that Chang Haonan has not even had much contact with. ??Moreover, as time entered the second half of 2000, the cumulative number of safety test hours of Turbofan 10 continued to break new highs. ?If nothing unexpected happens, in another 2-3 months, Turbofan 10 will enter the design finalization process. It is estimated that throughout the fourth quarter, Chang Haonan''s main focus will be on this matter. After that, equipment imported from Europe should also arrive, and research on pulse laser processing should begin again. Therefore, Chang Haonan can only provide some theoretical and engineering guidance at most, and it is impossible for him to stay in Mongolia. The situation of Zhai Mingguo is similar.????So, they need help. I know the Meng Provincial College of Agriculture and Animal Husbandry...well, he should be a professor at the Agricultural University now, named He Guangyou. He specializes in soil erosion. He has been in contact with us during field exploration before. Zhai Mingguo immediately replied: Although the platform is not very good, he has not achieved many results, and the strength of the research team is average, but his research is still relatively rigorous. Strength generally doesnt matter. Chang Haonan doesnt really care about this: The main thing is to be able to complete the task with quality and quantity according to our requirements. Zhai Mingguo nodded: Then let me contact him and see when he is free recently. Lets talk about it together? "Can." Zhai Mingguo''s efficiency is even much faster than Chang Haonan''s estimate. Less than a week later, he contacted the latter and said that Professor He Guangyou had arrived in the capital. Considering that this project must be led by Chang Haonan, the three simply chose to meet in a small conference room at Beijing Hang University this time. After a brief exchange of greetings, Chang Haonan got straight to the point and stated his idea of ??"turning sand into soil" and introduced the theoretical basis he had previously told Zhai Mingguo and others in more detail. After listening, He Guangyou pondered for a long time. To be honest, he is not proficient in these theoretical knowledge. Even after hearing it just once, he still feels a little confused. But no matter what, He Guangyou still believed in the names of Chang Haonan and Zhai Mingguo. So the focus is actually on the operation - The desert area in central and western Mongolia Province is a terrain that he is very familiar with. In fact, He Guangyous hometown is in Bayannur City, near Alxa. ?However, after all, Chang Haonan has no knowledge of agriculture. His ideas are almost entirely based on physics, so he needs some time to think about how to implement the project. Chang Jiao, there are two things I need to say first. After a few minutes, He Guangyou looked at Chang Haonan again. The latter nodded and signaled the other party to continue. "First of all, your idea just now is mainly to improve the binding force of the sand body and convert the dispersed sand into a rheological state. However, in actual production, most of the problems faced by the soil are that the agglomeration is too serious, so If you blindly increase the binding force, it may be okay at first, but it will probably lead to the deterioration of the soil condition to the other extreme after a few years. He Guangyou said: "In addition, these soils are modified from sand, so at least in the first few years, it is difficult to grow food... In fact, considering the problem of salinity, it may be difficult to grow anything, so my suggestion is that it is best to find A crop with relatively high salt-alkali tolerance but relatively low soil fertility requirements..." For example? ?Although Chang Haonan is not indistinguishable from grain to grain, he has never cultivated land before and has no idea about this kind of thing. "for example" He Guangyou hesitated for a long time: Natural crops may not have such good properties, so we may need a breeder to cultivate some alfalfa or legume crops in this direction... (End of this chapter) Chapter 861 Breeding expert Chapter 861 Breeding Expert Alfalfa, or soybean Chang Haonans understanding of these two crops is limited to the fact that the former is a high-quality forage and the latter is an oil crop and feed material. Then there are some vague memories from before the college entrance examination, such as rhizobia and the like. ?However, He Guangyous proposal reminded him of something that was not directly related to the present In the last life, two years later, in 2002, a well-known soybean breeding expert in Shandong Province was robbed by two gangsters on the street. During the process, he was stabbed. Due to the remote location and no one, Discovery and rescue ultimately resulted in tragic death. Although in the first few years of the 21st century, the overall security level in China was relatively average, and street robbery was certainly not a rare case, if not a daily occurrence, the identity of the victim this time was special after all, so this incident was considered a cause for concern at the time. Quite a stir. ??Together with the kidnapping case of Academician Xuriqian that occurred later and the plot was even more outrageous, it became a relatively famous criminal case in the scientific research circle that year. ?Even the local Agricultural College when the incident occurred was later merged into Daocheng Agricultural University, and it is said that it was affected by this incident. Chang Haonan''s thoughts were flying further and further, but from the perspective of He Guangyou on the opposite side, the former just thought about it for a long time after repeating his proposal and had not yet given an answer. Apparently confused. Even though he didnt understand why Chang Haonan was troubled, He Guangyou still explained: A few years ago, I conducted research on the soil water and soil conservation capacity in central and western Mongolia and central Longyuan Province, and found that after mixing ryegrass and alfalfa, leaving the root systems of these two crops during the harvesting process can effectively improve The shear resistance of the soil, and in a certain ratio, can reduce the cohesion and internal friction angle of the soil. " In addition, alfalfa has a root nodule structure like soybeans, and the most suitable planting environment is soft sandy loam, which is very suitable for the newly modified desert terrain, but it consumes a lot of water, so drought-tolerant varieties need to be developed..." Even though He Guangyou was previously rated as average by Zhai Mingguo, he is still an agricultural researcher no matter how average, and he naturally talks about his research in a clear and logical manner. Perhaps because there were two big guys listening, he became more and more excited as he talked, and soon got into the content of crop science and soil science. In short, the way of heaven is reincarnation, and Chang Haonan was finally baptized by a storm of knowledge that he did not understand at all. That...Professor He. Finally, when the other party finished speaking again and paused for a moment, Chang Haonan quickly interjected. Zhai Mingguo, who was next to him, put a glass of water in front of He Guangyou just right. ?This interrupted the opponent''s continuous casting. If thats the case, then where can I get the drought-tolerant and salt-alkali-tolerant crops you mentioned? In fact, as early as just now, Chang Haonan had already decided to take this opportunity to bring the breeding expert named Zhuang Bingchang into this project. The overall public security situation in China needs to be gradually improved with the times and economic development. It is impossible to change overnight to what it will be more than 20 years later just because of what Chang Haonan did. Even if he takes out the Skynet system now, all parts of China will not be able to spend enough money and people to install and maintain this system. Zhuang Bingchang is now just a well-known researcher at the Academy of Agricultural Sciences in the industry. Even if he is an overseas returnee who is not very common in this era, without any clear reason, it is impossible for Chang Haonan to apply for a set of security guards for him - Even if you can, others may not be willing to do it. ?Since the security standards were raised early last year, even a relatively homebound person like Chang Haonan sometimes feels that life is inconvenient. So, the easiest way is to use a big project to retain the other party for a few years. The public security in Beijing is relatively good. ?On the other hand, the Mongolian province is a test field and will be located in a desert area. There may not be many people living within tens or even hundreds of kilometers. It is safer after all. But Chang Haonan has never been exposed to the field of agronomy before. If he directly named someone to join the project, it would undoubtedly be very abrupt. So, he thought about having some more trouble with He Guangyou and then asking him to make a list. ?At this time, there are not many experts in soybean breeding in China, and Zhuang Bingchang is likely to be among them. ?However, He Guangyous reply allowed Chang Haonan to skip all the twists and turns: "In current breeding research in our country, most people still follow the footsteps of Academicians Yuan and Academician Li, and are engaged in rice or wheat. After all, they are staple foods. The higher authorities attach great importance to them and have a lot of funds. Others are engaged in corn and cotton. As for the research on cash crops such as soybeans and alfalfa... there are not many. " Having said this, he tapped the table with one hand and thought for a moment: I know that the Jilin Provincial Academy of Agricultural Sciences just introduced an expert named Zhuang Bingchang in June who graduated from the University of Hohenheim in Germany and worked as a postdoctoral fellow at the China Agricultural University. He Guangyou was obviously not very familiar with Zhuang Bingchang, but his tone was still respectful. After all, studying in Germany is one of the most difficult areas in the study abroad community. There is a saying that "the three years of studying in Germany may be the longest seven years of your five years in life." Graduating is already very impressive. Chang Haonan almost laughed out loud when he heard this: Can you contact Professor Zhuang? He Guangyou did not reply immediately, but lowered his head and took out a transparent floppy disk box from his briefcase. ??The floppy disks inside are neatly categorized according to different colors, and there are sticky notes on the sides. Obviously, these are all relevant materials compiled by He Guangyou. Zhai Mingguos previous evaluation of his rigorous academic attitude should be reliable because he sees big things from small things. You two are just kidding, I dont use computers very much, and I usually go to remote areas on business trips, so I didnt buy a laptop, so I had to come here with this box. He Guangyou said as he picked out a floppy disk. I havent had contact with him before, but there are several papers he has published, and there are contact information on them. ??These days, domestic journals are quite wild. Sometimes not only the work unit and email address of the corresponding author are given, but also the authors headshot and office phone number are listed. ??Official box weapons belong to it. ?However, at this time, it suited Chang Haonan''s wishes. He took the floppy disk and inserted it into the laptop. There are several papers in it. In other words, since this researcher Zhuang has just arrived at the Jilin Agricultural Research Institute from the Agricultural University, shouldnt his previously published papers have the contact information of the Agricultural University? Di Mingguo, who had been silent next to him, suddenly spoke. He should have entered the Agricultural Research Institute with results. He just published a new paper, the one with the latest date is the one. He Guangyou replied. ?Chang Haonan knew in his heart that he knew how to play. Bringing achievements into groups is a common practice among young teachers born in the 1920s or 20s. ??It means to keep part of the research results during your Ph.D. or post-doctoral studies, and then distribute them after you get a promotion-or-leave contract. This can be counted as the achievement when becoming a full-time student. If you are lucky, you can even get through the inspection phase without any stress. I just didnt expect that this kind of gameplay is already available now. Soon, he found the PDF document that had just been added a few days ago from a large pile of files. Construction and gene mapping of higher density map of F linkage group in soybean genome ?This document is even in the status of being accepted but not officially published. ?After clicking on it, I found out that one of the authors is Zhuang Bingchang. ??Although he is not the corresponding author, this document even contains submission information. I dont know what channel He Guangyou obtained it from. In short, the authors basic information and contact information are listed at the bottom of the first page. Im not a well-known expert. Researcher Zhuang probably hasnt heard of me. He Guangyou said: So it might be better for you two to contact him. (End of this chapter) Chapter 862 A quota on the Shenzhou spacecraft Chapter 862: A quota on the Shenzhou spaceship ?Later in the day. Changchun. Jiji Provincial Academy of Agricultural Sciences. ?Zhuang Bingchang was in the office, looking at a form on the computer screen in front of him with some distress. He came here from the Agricultural University three months ago, firstly because he completed his undergraduate and master''s degrees in this city, and secondly because the Northeast is suitable for the growth of soybean crops, which is in line with his research interests and directions. . But after obtaining better research conditions, new problems followed one after another In soybean breeding, the most advanced field in the world is obviously genetic modification. The United States approved the commercial cultivation of genetically modified soybeans in 1994, and Brazil and Argentina in 1998. These three countries are also major exporters of soybeans ?However, most countries in the world are still cautious about this. After all, when it comes to gene bank issues, there is no room for sloppiness. Huaxia is also among them. It has only opened up the import of genetically modified soybeans year by year, as well as certain restrictions on genetically modified breeding research. This is certainly understandable. But the problem is that breeding is a bit like engineering. Experimental fields are equivalent to blueprints. If you dont engage in commercial planting, it can only be regarded as a small effort. And Zhuang Bingchang was not satisfied with just publishing papers. ??He hopes that his research results can be truly implemented. ?The only feasible way is to engage in cross-breeding. However, unlike transgenic operations, which can cut and graft gene fragments from different organisms back and forth, cross-breeding can only be carried out between the same species. Generally, cultivated crops and wild species with richer traits are used. But the problem is. Where can he find so many varieties of wild soybeans? So Im stuck here. ?Until the end of last year, something happened that turned his research around. On November 20, 1999, the Shenzhou-1 unmanned spacecraft was launched. In the return capsule of the spacecraft, a large number of crop seeds were carried. Use space radiation to randomly mutate these seeds, and then select beneficial varieties for cross-breeding. That is space breeding. ?This is not the first time China has conducted space breeding experiments. But this is the first time it has been scaled up Compared to searching for wild species all over the world, this operation is obviously much more efficient. The Shenzhou-2, which is planned to be launched early next year, and the Shenzhou-3, which is planned to be launched early the next year, are good opportunities. But the problem is that the total amount of cargo carried by the spacecraft is limited, and the quota is really tight. ?Although he is relatively well-known in the industry, he is not famous enough to participate in this level of competition... ?Just when Zhuang Bingchang was struggling, the landline phone placed on the corner of his desk suddenly rang. Look at the area code, its a number from Beijing. Postdoctoral fellow Zhuang Bingchang is at the China Agricultural University in Beijing, so he naturally picked up the receiver: Hello, may I ask who you are? The phone call was naturally made by Chang Haonan. I am Chang Haonan from Beijing University of Aeronautics and Astronautics. Are you researcher Zhuang Bingchangzhuang? I am, what do you want from me? ?Zhuang Bingchangs answer was very concise, but at the same time, his mind was running rapidly. He was impressed by the name Chang Haonan. ??After all, there was such a big round of news just a few months ago. I dare not say that all people in China, at least most of the Chinese people who often pay attention to the news, must have an impression of this name. But Zhuang Bingchang knew more. ??In addition to being a professor at Beijing Hang University, the other party is also an executive of the newly established China Aerospace Engine Group ?This is of course also public information, but if you dont check it specifically, it will not be made public like solving the Poincar conjecture. ?Furthermore, two years ago, Chang Haonan achieved the bizarre achievement of receiving three National Science and Technology Awards at the same time! Definitely the boss among the bosses. ?However, what makes Zhuang Bingchang a little puzzled is that the other party, who is engaged in aviation, is calling him for what? So he still retained a little vigilance in his heart. What if he is a liar? The two of them have never crossed paths before, and the other''s voice Fortunately, Chang Haonan on the other side of the phone had already thought of this: "Researcher Zhuang, you can open your email address, which is the one used for submission. I have sent you an electronic version of the cooperation instructions, as well as a photo, which is a letter of introduction with the official seal of Beijing Hang University. That should be enough to identify me." Professor Chang, wait a moment, let me take a look. Actually, after hearing what Chang Haonan said, Zhuang Bingchang was already convinced. ? He ??held the receiver between his ear and his shoulder, freed his hands to open a browser and enter his email address. Soon, a photo that was not very clear, but still barely legible, and a PDF document were downloaded to his desktop. ?Chang Haonan has switched the phone to speakerphone and is drinking tea with He Guangyou and Zhai Mingguo while waiting for the other party''s response. They are not in a hurry. Although it was an inter-provincial long distance call, I used the schools phone anyway. On the other side, Zhuang Bingchang quickly put the microphone on the table next to him ??Its not that he couldnt maintain the posture just now, but the content in the document! Desert soilization! On a smaller scale, oases can be created in the desert, at least on the edge of the desert, thereby gradually controlling or even reducing the area of ??the desert. ? ? And speaking more broadly... ? ? ? Then it involves Chinas food security issue. As a crop breeding expert, Zhuang Bingchang naturally has this judgment. Even if the transformed sandy soil cannot grow staple crops, there is no harm in increasing the area of ??cultivated land. ??It''s a big move, just move some suitable cash crops there, and then use the freed land to grow staple foods. That''s it. The reason why the other party contacted him was that in the process of converting desert to soil, drought-tolerant, salt-alkali-tolerant soybeans or (and) alfalfa crops are needed. And this happened to be his research direction. In fact, Zhuang Bingchang currently has a drought-tolerant soybean in the test field. Its a pity that they are genetically modified crops. Even the genes of a cold zone fish were transferred. In the classification of biological systems, it is a cross-border operation. Even in desert areas, if you want to cultivate a large area, you may not be able to get approval. Professor Chang, I am very interested in your suggestions. ?Zhuang Bingchang picked up the microphone again: "But before I make a decision, I have to explain something to you." You said. ?Chang Haonan took a slow sip of tea and said in a calm tone: In crop breeding, especially traditional breeding using hybridization, luck is often the decisive factor, and the cycle is very long. ?Zhuang Bingchang replied: So, even if I join, I cant guarantee that I will take it out within a fixed time limit At this point, his voice stopped abruptly. ?Originally, Zhuang Bingchang wanted to give Chang Haonan a vaccination. ?There is no doubt that the other person is a genius type of scientist. Generally speaking, when working with this kind of person, you will gain a lot but also be under a lot of pressure. He is not afraid of pressure, but the problem is that crops dont care whether you are stressed or not. If it doesnt grow, it means it cant grow, and nothing will work. But halfway through speaking, Zhuang Bingchang suddenly remembered something. This is the issue of space breeding that he was still worrying about just now. Chang Haonan is a professor at Beijing University of Aeronautics and Astronautics. Although he is engaged in aviation, he seems to have something to do with the aerospace field. Hello? Researcher Zhuang? Chang Haonan on the other side of the phone heard the other partys sudden silence and thought it was a signal problem: Can you hear me? ?However, Zhuang Bingchangs voice soon came again: Professor Chang, if you can help me get a spot on the Shenzhou spacecraft, then the probability of successful breeding will at least be much greater. To put it bluntly, space breeding means that the poor rely on mutation. As for what happens after the mutation, it all depends on fate. But as long as you bring enough seeds at once, you can always open the blind box and get something useful. Actually, Zhuang Bingchang just guessed the process wrong, but he guessed the result correctly ?Chang Haonan is not familiar with the Aerospace Institute of Beijing Hang University, but he does have a close relationship with the Aerospace Institute. ??After all, the National Space Administration also bears the brand name of the System Engineering Department of the Commission of Science, Technology and Industry for National Defense. But the former would have misunderstood the meaning of the sentence just now, and thought that this quota meant that Zhuang Bingchang wanted to go to heaven. ?So I was immediately shocked and almost spit out the tea in my mouth: "ah?" Researcher Zhuang, this Shenzhou spacecraft, the Shenzhou 2 launched next year, and even the Shenzhou 3 the year after that, are all unmanned, full-state spacecraft, and even if they are manned, it is impossible for you, a non-professional, to go up..." Actually, we cant blame Chang Haonan for letting himself go. After all, before he was reborn, there was already a non-professional astronaut who was a payload expert and followed Shenzhou 16 into space. Even his alumni. ?It is said that he is holding remote group meetings with his research team on the space station... Noits my fault that I didnt make it clear ?Zhuang Bingchangs head is full of black lines: Its not that I want to go to heaven, but that I want the seeds I cultivate to go to heaven. I want to use existing improved seeds and rely on the strong radiation environment of space to promote mutation to see if we can further change the traits we want. ?At this time, Chang Haonan also realized that he had just lost his mind. If its just an experimental load He raised his head and thought for a moment. ?Although the project in front of us has changed beyond recognition now, in the final analysis, it originated from the National Space Administration. Coupled with my hundreds of millions of connections with the Science and Technology Commission... In short, Chang Haonan finally gave a positive answer. ?But I didnt say it to death: I can apply for it for you, but I cannot guarantee the volume or weight that will be allocated to us. ? Zhuang Bingchang did not raise the specific quota requirement at the beginning. In fact, he was overjoyed to get the first half of the guarantee: Okay, then I will rush to the capital as soon as possible in the next few days to meet and chat with you! (End of this chapter) Chapter 863 Get a patent first! Chapter 863: Get a patent first! Zhuang Bingchang still has a lot of half-finished experiments to finish. In addition, Chang Haonan''s breeding and desert transformation are long-term projects that take years to count. He really doesn''t care about the time spent in the past few days. So, the former finally proposed to arrange his trip a week later. ?Chang Haonan immediately agreed. A week later...isnt it a little long? After hanging up the phone, Zhai Mingguo asked. In fact, he just wanted to ask Zhuang Bingchang to come as early as possible, but Chang Haonan agreed too quickly, leaving no time for him. While speaking, Zhai Mingguo glanced at He Guangyou next to him. ?It doesn''t matter that he and Chang Haonan work in the capital, but He Guangyou''s trip to Beijing is considered a business trip. These days, funding for colleges and universities is not that sufficient. ?Especially, Meng Agricultural University is just an ordinary provincial university. Otherwise, He Guangyou would not have brought a box of floppy disks instead of a computer. This is not a big problem. ?Chang Haonan also noticed Zhai Mingguo''s eyes. ?But he has his own solution: Ill contact the First Aviation Power Hostel later and ask Professor He to stay there for a few days. When the Aviation Industry Corporation of China was split, its non-core business departments were naturally split between the two groups. This first aviation-powered guest house is the 625 guest house in the past head office period. Last year, together with the 625 Institute (Aviation Manufacturing Technology Research Institute) itself, it was placed under the name of the Aerospace Power Group. The notes written by Chang Haonan can naturally be used. Zhai Mingguo next to him was just a tactical retreat, with an expression on his face like "I can still play like this, I''m disrespectful." So this week...is there anything I need to do? He Guangyou next to him had already been arranged clearly before he could react. ??But its not embarrassing to live in other peoples homes for free... "Um" ?Chang Haonan lowered his head and thought carefully, and finally he found a job: "I''m going to spend this week writing the patent, but the patent specification may involve some background technology and the like. I don''t know much about the parts related to desertification and agronomy. Professor He, can you help me? " He Guangyou just arrived in the capital from Qingcheng today. He is not particularly clear about what happened in the past few days. He just assumes that Chang Haonan has been researching this technology for some time and is about to enter industrialization, so it is logical to register a wave of patents. ?So he nodded simply: Okay, I have a lot of them in the floppy disk. When the time comes, tell me your specific needs and Ill just find a computer and make some changes. ?However, Zhai Mingguo''s reaction was completely different. After listening to Chang Haonan''s words, there was even a moment of confusion on his face. It wasnt until He Guangyou nodded to express his attitude that he came back to his senses: Wait...wait a minute. Patent? ?Others dont know it, but Zhai Mingguo has witnessed the entire process of this desert improvement project from scratch. Chang Haonan proposed this idea during a meeting at the Institute of Geology and Geophysics last week. ??And it was obvious that he had the idea after listening to Lu Jinhuis report. This is not an earlier study at all. ?According to Zhai Mingguo''s original idea, the visit to Chang Haonan this time, and even after Zhuang Bingchang arrived, should be within the scope of preliminary discussions. After the general direction is decided, then enter the serious research and development process. How come the intermediate steps disappear and the patent registration step is reached? "yes." ?Chang Haonan nodded naturally. Nodidnt we just come up with this idea at the last meeting? Zhai Mingguo showed a puzzled expression: "You already know what materials can be used to transform the sand body from a discrete state to a rheological state?" ??Chang Haonan then understood why the other party looked like he had seen a ghost. Within less than a week, it was certainly impossible for him to finalize the final materials. Even if the hang is enabled, it wont work. ?This "desert soilification" project has only just reached the stage of defining several major material categories through numerical calculations in the system. More specific formulas and even process techniques still need to be continuously tested. ??However, these are not required to write a patent. As long as the principle of a patent is feasible, it does not matter whether the actual operation is feasible. ?Just like before Chang Haonan was reborn, there was a period of severe smog, so someone registered a patent for manually using a large fan to remove the smog. Although everyone knows that this thing is impossible to operate, as long as the principle can be explained (and the patent application and service fees are paid), it can still be passed. Its just that no one will use it. After all, if the Patent Office is still responsible for verifying the feasibility of patents one by one, it will directly become a bottomless pit of funds. The specific materials used are of course unclear. Chang Haonan smiled and shook his head: But for patents, lets register a few materials with application potential first. Its a trap. We can add some details when the results are produced later. Zhai Mingguo finally breathed a sigh of relief. But then I thought about it. ?This seems to be a bit exaggerated... We havent done any specific experiments yet. How do you know which materials may be promising? He asked with some confusion: Cant we just register all the commonly used materials? Of course its impossible Chang Haonan shook his head: Lets not talk about whether the patent office will allow this. Even if it is allowed, there are thousands of material categories, especially polymer materials. Im afraid I will be exhausted just writing the application..." "That" ?Zhai Mingguo felt that he could hardly recognize the world anymore. This involves the new discipline I am currently studying, the field of computational materials science. ?Chang Haonan leaned his upper body back and began to explore his new research field: In general, the key properties of sandy soil are the multi-directional constraints formed between soil particles, and the external properties are rheology, shear strength, compressive strength, stiffness Fortunately, these are relatively simple and direct mechanical parameters, and I have some knowledge of numerical calculations, so I tried to establish a mathematical model for the interaction between sand and soil particles. Judging from the results, the effect is pretty good. I found several modified cellulose and biodegradable polymers that meet my requirements. I plan to register them all this time. Zhai Mingguo: ?He Guangyou: ?Although Chang Haonan said a lot, he did not disclose the specific calculation method In fact, even if it is revealed, it is unlikely that the two people next to you who are engaged in geology and agronomy will understand it. So he is not worried about risks such as patent leakage. What I just mentioned is actually not even a performance report. It can only be regarded as strengthening the confidence of this newly formed research team. At present, the effect seems to be pretty good... (End of this chapter) Chapter 864 Believe me, our satellites are for civilian use! Chapter 864 Believe me, our satellites are for civilian use! The patent naturally does not need to be written by Chang Haonan himself. Anyway, he had already sorted out the core calculation process before. As for the other parts that need to be inked, most of them are clichs and can be left to the students who are new to the research group to complete. Wang Jie, who has not yet left for Shanghai, is very suitable. After all, writing patents is a specialty of the postgraduate stage and must be tasted. As for Chang Haonan himself... After completing the deployment of the mission, he set off for the Science and Technology Commission. Since he promised Zhuang Bingchang to fight for a place for his seed, he will definitely not break his promise. Before setting off, Chang Haonan made a special phone call to confirm whether Ding Gaoheng was in the office ??Although he still has the permission to enter through facial recognition, he has not been to the Commission of Science, Technology and Industry for National Defense in several months. ?The last time I met Ding Gaoheng, I was invited to his home for dinner just after I sent out the paper proving the Poincar conjecture. ?Coming here this time, I even felt a little like revisiting my old place. Director Ding. ?Chang Haonan came to the door of Ding Gaoheng''s office, habitually preparing to knock on the already open door and then walk in directly. But as soon as he finished speaking and before he could raise his hand, he saw another person sitting in the room. ?Hence, he stopped. When outsiders are around, you should behave more formally. Ding Gaoheng, who was talking to the man on the sofa, heard a knock on the door and turned around to see Chang Haonan standing at the door. Xiao Chang, come in and sit down. The other person heard Ding Gaoheng calling Chang Haonan and immediately looked back. They are still acquaintances. Director Luan? ?Chang Haonan''s eyes flashed with surprise for a moment. ?But then he walked forward and shook hands with the other party: "haven''t seen you for a long time." After saying that, he sat on another sofa next to him. Luan Wenjie, Director of China National Space Administration. This is indeed such a coincidence ?Although Chang Haonan called Ding Gaoheng just now, he did not explain the specific purpose of his visit. Nominally speaking, the overall commander of the manned space project is the director of the Commission of Science, Technology and Industry for National Defense, namely Ding Gaoheng. But this is mainly to facilitate the coordination of the power of the entire military-industrial system, and the nominal component is relatively large. Therefore, in order to obtain a breeding opportunity for Zhuang Bingchang, Luan Wenjie must finally be given the opportunity. Turns out, the rightful owner happened to be there. ?However, Chang Haonan did not speak immediately after sitting down. We are all colleagues under the same system, and now we are not competing for houses or land. We still have to talk about first come, first served. ?However, although Chang Haonan did not interrupt the topic, Luan Wenjie took the initiative to look at him. Mr. Chang, Director Ding and I just mentioned you. "oh?" Chang Haonan, who was originally going to be in a daze for a while, became interested. ?You can''t predict the situation between two people facing each other, right? Mr. Chang, you should know that our country has launched a total of three resource series remote sensing satellites independently and in cooperation with Brazil. Luan Wenjie did not use a questioning tone, so Chang Haonan just nodded slightly. ?Of course he knew this. After all, the satellite image that led to a series of topics and projects came from the Ziyu-201 satellite. The former immediately continued: In the past few years, especially in the six months since the launch of the two Ziyu-2 satellites, space-based remote sensing has helped us solve many problems that were not easy to overcome in the past. Of course, we also borrowed a lot of light from Mr. Chang. Borrowing Chang Haonans light, it naturally refers to the high-dimensional data dimensionality reduction algorithm he developed. However, Chang Haonan himself was a little confused. Wait a moment, Director Luan. He raised his hand to interrupt the other party: I have just begun to study the data obtained through data dimensionality reduction. Can this all benefit from my light? Chang Haonan has indeed relied on that algorithm to process different data several times, but the further results, whether it is the desert soilization he directed, or the geological analysis of permafrost and loess plateau that was previously handed over to other systems for research, are all Haven''t taken it out yet. How come you have solved a lot of difficult problems? I havent exerted my strength yet? But the way Chang Haonan looked at Luan Wenjie, it was obvious that he wasn''t joking. The interrupted Luan Wenjie and Ding Gaoheng looked at each other and explained with a smile: "The data that has been reduced from too high dimensions still needs to be analyzed by Mr. Chang. However, after some relatively low-dimensional data has been reduced in dimension, we rely on the old method of increasing the sampling density and comparing it with known geographical information. , a lot of useful content can still be unearthed. ""For example, in July this year, we relied on these data to predict a large-scale flash flood and debris flow in Ziyang County, Qin Province, and relocated people in 12 towns in advance. Hundreds of casualties were avoided..." Chang Haonan suddenly realized. High-dimensional data is just a general term. As Luan Wenjie said, it can still be divided into three, six or nine grades. After dimensionality reduction, the forms of low-dimensional data are also different. The only thing they have in common is that because they have become two/three-dimensional data, they can all be directly recognized by human perception. ?Of course, just because two- and three-dimensional data can be read does not mean that it can be easily understood. Thats why the data verification mentioned before needs to be carried out. ??Because Chang Haonan is the developer of the algorithm and is open to the public, his focus is naturally on data with higher original dimensions. The amount of information hidden behind these data is larger, but correspondingly, it is more difficult to parse. However, the route chosen by the space agency is the normal one: easy first and then difficult. So its normal to be able to produce some results quickly. In particular, the risk of geological disasters such as flash floods has obvious characteristics. If it is an earthquake, it may be more troublesome. At least the algorithm he is currently developing certainly cannot handle it. Chang Haonan is naturally happy to see this. After all, the route he set for himself when he was reborn was not just to take out the finished product from Doraemon, but to promote the development of related industries in China. In the fields of aviation and machinery, he has achieved this goal. As for aerospace, now is at least a good start. ?While Chang Haonan was thinking secretly, Luan Wenjie picked up the tea on the table and took a sip, then returned to the previous topic: In short, through this period of application, superior units have intuitively realized the role and urgency of building a space-based remote sensing system, so they have approved a new amount of funds for us. Are we going to launch other remote sensing satellites? ?Chang Haonan now understood what the other party meant. Yes, but this time its not a resource series. Lan Wenjie replied: Originally, according to the plan, we would launch my countrys first marine resources satellite, Haiyang-1A, between 2002 and 2003 to provide the Ministry of Land and Resources and the State Oceanic Administration with marine biological resource development, marine pollution monitoring and marine Scientific research and other services. But now that we have this funding, we are ready to speed up the progress and strive to advance the launch mission to the first half of next year, and no later than the third quarter of next year. Thenwhat do you need me to do? ?Chang Haonan asked bluntly. After Luan Wenjie heard this, he no longer cared about him: "The current resource series satellites transmit the original data from the onboard data system, and then our ground stations process it to obtain the results. The advantage of this is that the requirements for the satellite are relatively low, but the data can only be collected when the satellite is overhead. The timeliness of transmission and exchange is very poor. Of course, the resource series satellites mainly serve the territory of our country, which is not a big problem. However, the ocean series satellites are mainly targeted at the Pacific region. If we continue to use the old method, it may not meet the requirements. So, we hope to hand over at least part of the data processing to the onboard computer, which can greatly ease the transmission pressure... Hearing what the other party said, Chang Haonan immediately curled his lips: "Director Luan, the development of marine biological resources, as well as marine pollution monitoring and marine scientific research... don''t seem to be very timely, right?" He thought to himself that if Haiyang-1 only had this function, he would dare to eat the satellite. Sure enough, after hearing his question, Ding Gaoheng, who had been sitting behind the desk without speaking just now, smiled and said to Luan Wenjie: Ill just say you cant fool him... Then, he looked at Chang Haonan and explained: "In the past few years, we have developed an active radar system for large and medium-sized water targets based on the technology of the Soviet Union''s ''Legend'' ocean surveillance system. In addition to the tasks that Comrade Wenjie just mentioned, Ocean One also Be responsible for conducting effectiveness tests on this radar. ?Chang Haonan''s eyes widened slightly. ?He just guessed that this satellite must have military purposes, otherwise there would be no need to pursue front-end data processing and timeliness. But the big game is still completely unexpected: I remember that the legendary system needs to be powered by a spaceborne nuclear battery. Our Ocean One... Thats definitely not the case. Lan Wenjie shook his head: The safety of nuclear batteries is too scary. Fortunately, our radar equipment consumes relatively low power, and we have canceled a data link system for direct communication between satellites and fleets, so solar panels are enough to serve..." So thats it ?Chang Haonan has not yet completely recovered from the shock just now The "Legend" ocean surveillance system was the core of the Red Navy''s anti-aircraft carrier system in the 1980s. It includes the active US-A and the passive US-P. It can locate targets individually based on the baseline interference phase comparison method, or it can also be combined with dual satellites. Active and passive composite positioning. Although the positioning accuracy itself is relatively average, only at the level of 100 meters or even kilometers under different conditions, anti-ship missiles with active radar seekers themselves do not require particularly precise target information. It seems that in recent years, the country has bought a lot of things from the north that were not obtained in the previous life. ??If the ocean surveillance system can be built more than ten years in advance, it will definitely be a huge threat to the US military, which highly relies on the naval fleet for physical deterrence. Combined with the anti-ship ballistic missiles he had considered before... ??Dont you already have this ultimate weapon? (End of this chapter) Chapter 865 Can we go to space to farm? Chapter 865 Can we go to space to farm? Chang Haonan naturally has to actively participate in the rigorous work of the ocean surveillance system. ?However, he did not immediately give an agreeable answer. After all, Haiyang-1 is definitely still a civilian satellite belonging to the State Oceanic Administration. So the data obtained by other equipment on the satellite also needs to be processed together. ?However, in this case, the calculation pressure will be considerable. You know, before he used supercomputing to process that picture, it took him one night and one morning. ??Although the single imaging area of ??ocean monitoring satellites will not be as high as the terrifying millions of square kilometers like Ziyu-201, it will still be a huge burden for the satellite-based computers with poor performance. After organizing the language, Chang Haonan raised his concerns to Luan Wenjie: Director Luan, as you saw when we were at the Tanzhou Measurement and Control Station last time, the calculations of the data extraction and dimensionality reduction process are quite complex, and there is also a considerable black box part of it. As far as I know, the performance of computers mounted on satellites may be worse than ordinary commercial machines due to energy consumption and radiation protection issues? Lan Wenjie also decisively recognized Chang Haonans statement: Indeed, the performance of space-borne computers cannot be improved in a short period of time, at least it cannot be compared with supercomputers on the ground. ?However, immediately afterwards, he changed the subject: So our Haiyang-1A satellite is still focused on technical verification. As long as part of it can be processed on the satellite side to ensure that the timeliness is improved compared to the resource series satellites, we do not deliberately pursue specific indicator data. With these words, Chang Haonan felt relieved. ?After all, he didnt cross many boundaries in his previous life. His understanding of the aerospace field was basically limited to the public part and a small amount of information obtained through communication with peers. He was not able to figure out the specific development level of a certain technology like his old profession. However, the general trend of improving satellite computing capabilities and reducing the pressure on ground stations as much as possible is definitely correct. Otherwise, no matter how fast the data processing speed of the ground station is, it will have to go through one or even multiple data transmission processes between it and the terminals that really need to use remote sensing information, such as ocean strike formations or scientific expedition units. It is difficult to achieve real-time or quasi-real-time reconnaissance. Thats no problem. Chang Haonan nodded: But I will probably spend most of my time in Shengjing in the next two or three months, and I wont be able to participate in your project until December at the end of this year at the earliest. Is the Taihang project about to be finalized? Ding Gaoheng, who was behind the desk, suddenly intervened and asked. After the establishment of the General Armament Department and the group restructuring of the five major military industry corporations, the administrative approval authority for the design finalization process was gradually transferred from the Science and Technology Commission to the former. ? Anyone with a discerning eye can see that with the development of the national economy, especially the significant driving role it has brought to the machinery industry after the establishment of the Equipment Industry Department, the country is considering gradually removing the militarization of the Commission of Science, Technology and Industry for National Defense. ?For example, Zhang Hongbiao, the newly transferred deputy director, and Luan Wenjie, who is rumored to be promoted to deputy director soon, do not have military status. Yes, it is expected that the national appraisal will start at the end of September and the design will be finalized before the end of the year. Chang Haonan replied. ?Although the entire research and development process of the Turbofan 10 went smoothly, the national appraisal process for design finalization is quite detailed and standardized, and there will not be any fewer projects just because you have a smooth journey ahead. Even if all the subjects are passed at once, it will take about two months. ??And it''s good luck that it comes just as winter is about to begin. Otherwise, it would not be unusual for the appraisal to take more than half a year or even more than a year in order to wait for extremely cold temperature conditions. It doesnt matter. ?After the conversation between Ding Gaoheng and Chang Haonan came to an end, Luan Wenjie waved his hand: "Ocean monitoring...well, the equipment requirements of marine science satellites and land remote sensing satellites are different, so we are still doing the final research on the hardware level. The integration with the software program will not start until the end of the year. You can still make your own arrangements. Lord. Besides, your core algorithm should be ready-made and should just need to be optimized..." After the topic of Ocean One ended, Luan Wenjie stood up and prepared to say goodbye to Ding Gaoheng: Director Na Ding, my affairs are finished, you and Comrade Haonan... Wait a minute, wait a minute ?Chang Haonan quickly stopped the other party: "Director Luan has finished talking to me about what happened, but I haven''t talked about what Director Luan is looking for yet." ??He was brought into the other party''s topic as soon as he entered the door. As a result, he has not yet finished the business he came here for. How could Luan Wenjie be allowed to run away like this? Luan Wenjie, who had already picked up his briefcase, sat back down again. It seems like you two are quite destined... Ding Gaoheng half-jokingly looked at the two people on the sofa and said: You come to my place on the same day, and you still have to find the other person to do things? Its really a coincidence. Luan Wenjie looked at Chang Haonan: I dont know if Mr. Chang is looking for me because he wants to... Thats right, I have a project here, and I hope to use space breeding to obtain some beneficial crop traits. It happens that the Shenzhou 2 mission will be launched early next year, so... can you arrange a position in the mission payload? The latter is also straight to the point. ??They are all working on serious projects, so there is nothing to be embarrassed about. Space breeding ?At this time, not only Luan Wenjie, but also Ding Gaoheng''s face showed a bit of surprise: "Isn''t this research in the field of agriculture... Xiao Chang, are you still studying this secretly?" "It''s definitely not me. I don''t know the difference between grains and grains in agriculture. Anyway, it''s not much different." ?Chang Haonan made a small joke, and then continued to explain: Actually, this matter is also related to the Ziyu-2 remote sensing satellite that Director Luan just mentioned. Hearing this, Luan Wenjie and Ding Gaoheng instantly became interested. "Didn''t I specially process several photos taken by the Ziyu-201 satellite in the central and western regions of my country? From them, I discovered about 80 abnormal information data that had not been observed before, and then based on the recent geological From the exploration results, we found that desert terrain that meets certain characteristics has the potential to be improved into soil..." Chang Haonan spent a few minutes briefly introducing his plan to turn sand into soil. Of course, the specific technical part has been removed. After all, he couldn''t take out a small blackboard to teach the other two people here. "In short, according to the suggestion of Professor He Guangyou, who has extensive experience in desertification control in the past, after completing the soil transformation, it is best to plant some plants such as tall fescue and cosmos to stabilize the soil matrix, and then use soybeans, alfalfa, Ryegrass nourishes the soil. Researcher Zhuang Bingchangzhuang, who happens to be participating in our project, is an expert in soybean breeding, and he wanted this opportunity. Zhuang Bingchang ?Seeing that Ding Gaoheng had no intention of making the first decision, Luan Wenjie raised his head slightly and made a reminiscence gesture: "I seem to have an impression of this name. He seemed to have submitted an application during the Shenzhou-1 mission. However, at that time we considered that soybean seeds were relatively large in size and weight, so under the same conditions, the priority was lower. I guess I couldnt choose Then he looked at Chang Haonan: However, since this is the situation that Mr. Chang said now, it meets the conditions that may promote key projects. It is definitely no problem to increase the priority. "Of course, in principle, this matter still needs to be communicated with the chief engineer team responsible for specific tasks, but I will just coordinate. You can just ask Researcher Zhuang to submit another supplementary explanation document to us..." It was even smoother than Chang Haonan had imagined before. Until the two of them finished communicating about this matter, Ding Gaoheng, who had been silent just now, suddenly spoke: Xiao Chang, as the subject of your technology of turning sand into earth, I mean the subject before the transformation, doesnt it have to be sand? ?This somewhat awkward question made Chang Haonan think about it briefly: I havent counted the others, but in theory, as long as some basic conditions are met, such as certain binding and shear resistance, and the climate and water and fertilizer conditions are not too bad, there will be corresponding improvement methods. Well Ding Gaoheng lowered his head and thought, but did not continue to speak. Director Ding, what do you mean... After a short period of silence, Chang Haonan asked tentatively. Oh, just some unconventional ideas. Ding Gaoheng then raised his head again: I was wondering if, after a few decades or hundreds of years, we land on an extraterrestrial planet, would it be possible to use your technology to farm on extraterrestrial planets (End of this chapter) Chapter 866 Installation targets of domestic large bypass ratio turbofans Chapter 866 Installation Targets of Domestic Large Bypass Ratio Turbofans ?This time, both Chang Haonan and Luan Wenjie were stunned by Ding Gaoheng''s wild ideas. I can only say that he is a veteran who has participated in the research and development of two bombs and one satellite. He is really good at long-term planning. ?When Chang Haonan was first reborn and obtained the system, he did consider things like space exploration, but his idea at that time was nothing more than landing on the moon and Mars, or establishing an outer space orbital space station. ?Even later, we even thought about conducting deep space exploration, and after finding a planet where we could land, we would then use technologies such as quantum teleportation to transport equipment, materials, and even living things to the past. ??However, farming in outer space is a somewhat simple idea in science fiction... It is true that it has never happened. That depends on the specific conditions of the outer planet. ?Chang Haonan thought seriously for a while, and then said: "Like Mars, the situation is relatively stable, and the main surface is sand and gravel. It can''t be said that there is no hope at all... But for some planets with harsh environments, even solid or gaseous... then there is definitely no hope, and there are also involved Plants cannot grow without soil, they also need water and oxygen..." But having said that, maybe some moss or fungi and the like are not without possibility of survival? ?He just said it casually at first, but later he actually analyzed it logically. Luan Wenjie, who was next to him, actually shook his head and said matter-of-factly: "The possibility is very small. Although there are indeed some anaerobic plants or microorganisms, they cannot survive under any circumstances. For example, the oxygen content in the Martian atmosphere is less than 1% and carbon dioxide is more than 98%. Even if it is really like It is currently widely speculated that there is a certain amount of liquid water, but the environment is still too bad anyway. It would be better to have an Earth-like planet..." Chang Haonan frowned slightly: Its already an Earth-like planet, so theres a high probability that it already has soil similar to the Earths, so why bother transforming it Hissit seems to be the same ??The two sang and coordinated so seamlessly that it actually made Ding Gaoheng, who first proposed the idea, a little helpless: Ahem ?After coughing twice, Chang Haonan and Luan Wenjies attention was finally attracted again: Actually, I just thought about it casually. You dont need to take it so seriously At this moment, China is still working hard to achieve the first manned space flight. Let alone extraterrestrial planets, even the lunar exploration project has not been officially approved. It is indeed a bit early to consider what will happen after landing on extraterrestrial planets. . ?So this topic comes to an end. but. Although the matter of space farming is still relatively far away, Ding Gaohengs imagination just now has brought a lot of inspiration. Actually, what I really want to say After a brief silence, Luan Wenjie broke the silence first: Compared to transforming alien planets, the technology developed by Mr. Chang seems to be more suitable for exploring alien planets. At least it allows us to obtain more detailed surface information of the target from a relatively long distance... ?Chang Haonan did not speak, but just listened to Luan Wenjies first thoughts, and then entered into his own thinking ?Although extraterrestrial exploration is more realistic than landing on extraterrestrial planets, it must first be able to go to deep space. Those beautiful alien photos that people usually see on the Internet or in books and magazines are actually a lot of secondary renderings. In fact, the clarity of images observed by near-Earth space instruments such as the Hubble Telescope is generally quite poor, and there is only a single optical channel, which is simply not enough to provide data for in-depth analysis. ? To reduce the dimensionality of high-dimensional data, you must first have high-dimensional data. In short, these can only be regarded as reserved ideas. ?However, Chang Haonan just thought of something else. During the meeting at the Institute of Geology and Geophysics that day, before he proposed the idea of ??turning sand into soil, the one that actually attracted most people''s attention first was the idea of ??modifying desert sand and then partially replacing river sand for use in Building materials ideas. And I heard that the project application process is already underway. ?Of course, Chang Haonan himself has no idea of ????strengthening his career in the construction industry for the time being. But if we promote it... It is obviously more realistic to modify the covering on the surface of the moon or Mars to make it capable of being used as building materials than to grow food and vegetables in those places. And if you want to verify the feasibility of this road, the first step you need to do is actually no different from what it is on earth. Exploration, sampling, analysis. In other words, a return detector must be launched. Having said all that, no matter what we are going to do, we still have to go to outer space first. While Luan Wenjie finished speaking, Chang Haonan intervened in time: I remember Director Luan mentioned in a meeting before that the space agency is planning to carry out a lunar exploration project? In fact, he had never heard of it at all. He only vaguely remembered that the lunar exploration project in the previous life was probably established in the past few years. ? And Luan Wenjie had said so much in meetings that he usually held, how could he remember such details? He only thought that he had mentioned it during an internal meeting. Its just that this time Chang Haonan talked to Ding Gaoheng. So the latter answered directly: Thats what happened. Comrade Wenjie and Comrade Ye Jianpei, the chief engineer of the Ziyu-2 satellite, have reported to the higher authorities twice through me. "Technically speaking, launching a satellite to orbit the moon, including achieving a hard landing on the moon, is basically not difficult for us. What is more challenging is the soft landing, and later the return to the earth. " So the intention of our superiors is to wait until our automatic control soft landing technology has passed more tests before officially launching the lunar exploration project..." Chang Haonan didn''t know much about aerospace in his previous life, so he specifically brought the topic in this direction. Sure enough, he heard a lot of things from Ding Gaoheng and Luan Wenjie that he didn''t know much about before. ??The conversation continued for about twenty minutes, until Luan Wenjie raised his wrist to look at the time and said that he had a meeting to hold later, and the conversation ended. After watching Luan Wenjie leave the office, Ding Gaoheng himself left the office chair and sat on the sofa next to Chang Haonan. The latter immediately started making tea. "Xiao Chang, are you here just for space breeding?" Ding Gaoheng took the tea cup from Chang Haonan and asked with a smile. ?Although the few people just talked about a lot, the ocean surveillance satellites and lunar exploration were purely coincidences caused by Luan Wenjie''s presence here. So actually... Indeed it is. But since the leader asked specifically, Chang Haonan definitely couldn''t answer so straightforwardly. He nodded first: Mainly for breeding purposes. After a short pause, he continued: But there are still some things related to the aviation development groups business. I originally planned to report to you at the end of the year, but Im here today... Ding Gaoheng adjusted his sitting posture slightly and assumed a posture of listening attentively. "At this moment, the design of the Turbofan 10 is about to be finalized. Although there will still be production and finalization tasks in the future, the manpower required is much less than now, especially when other factories are sent to Shengjing to participate in the Turbofan 10 The comrades on the project will be able to return to their original units before the Spring Festival next year at the latest, so that they can take on some new projects..." Listening to Chang Haonan''s answer, Ding Gaoheng gradually became happy. In the past, his biggest headache was hearing about new projects related to aviation development. But now, its completely different. Like the three new models you mentioned last year when the Aerospace Power Group was established? Ding Gaoheng asked: I remember that there seems to be a high-power aeroderivative gas turbine, a large bypass ratio turbofan engine, and a... 1600kw-class turboshaft? Yes, you remember correctly. Chang Haonan affirmed: "The first naval gas turbine, which I have contacted with Institute 701 before, is prepared for future domestically produced main surface ships. The third turboshaft engine... We still have relatively few technical reserves in the turboshaft aspect. In addition, there are not many people sent by Southern Dynamics, and their capabilities are relatively weak, but they are not that fast. " This is just the second project. The large bypass ratio turbofan... still needs to find a suitable installation target. ?This time, Ding Gaoheng understood clearly The aero-engine project was established independently of the aircraft model, but it just got rid of its vassal status in the past. It does not mean that aviation development development should be disconnected from aircraft models. Once an engine is built, it must be installed on an airplane to be considered a real success. ??But after all, Chang Haonan is no longer a member of the Aviation Industry Group, and it is difficult for him to directly direct the work of his brother units. So, this is for my own project. Cant it be directly replaced with C909? Ding Gaoheng asked: Anyway, when our large bypass ratio turbofan is developed, C909 should also be domestically produced. Not very good. Chang Haonan shook his head: The C909 was designed to adapt to the PS90A, which has a relatively small diameter. Changing to a larger size aircraft engine will cause safety risks. "In the long run, we will definitely design a new passenger aircraft of the same level as the Airbus A320 or Boeing 737 from scratch. However, Hufei''s research and development capabilities are currently relatively average, and almost all of its efforts are used in the localization of the two models. Above, I am afraid there will be no extra energy in a short period of time, and the new passenger aircraft is equipped with a new engine, which may inevitably cause concerns for the airlines. " So I thought it would be better to let this model stand the test on military aircraft for a period of time. The aviation field is different from most other fields. The requirements for reliability, maintenance hours, and safety of civilian aircraft are much more stringent than those of military aircraft. Especially for the international aviation market, China is still a new player. Furthermore, mainline passenger aircraft also involve airworthiness certification issues. In short, military aircraft have less worries. Military aircraft that use large bypass ratio turbofans...basically only military transport aircraft. Ding Gaoheng thought: But strategic transport aircraft like the IL-76 or C17 may not be available in the short term..." You can make it smaller. ?Chang Haonan said the plan he had thought of for a long time: Our level of structural design and aviation materials is not yet sufficient to support the development of a 200-ton transport aircraft, but those using turbofans do not necessarily have to be heavy-duty transport aircraft. "The new generation of medium-sized transport aircraft can also use two high-thrust turbofans instead of four turboprops to achieve a maximum takeoff weight of 80-90 tons and a payload of about 25 tons. This will make the maintenance easier and the flight comfort better. " On the one hand, it is for self-use, and it can also compete with the alternatives of An-12 and C130 in the international market. On the other hand, it can also accumulate some experience for the research and development of future 80-ton mainline passenger aircraft. ?This idea of ??using twin turbofans to replace four turboprops would have been relatively rare in 2000. But after 2010, it will basically become the preferred object of all countries around the world. ?For example, the KC390 developed by Embraer has almost become the first choice among aircraft of the same class in the 2020s. The Netherlands, Hungary, Portugal, South Korea, and even the US Air Force are all very fond of this model. Although Huaxias products are unlikely to be sold in the United States, other markets can still compete. After all, even Rafales engines use Chinese technology. ?The sensitivity of transport aircraft is still much lower than that of main battle equipment... (End of this chapter) Chapter 867 Just call it Turbofan 20! Chapter 867, lets call it Turbofan 20! 80 tons...is it still slightly larger than the Y8? Ding Gaoheng did not answer immediately, but thought for a moment, and then asked Chang Haonan. The latter nodded: Yes, the latest improved version of the Y8 is the Y8F400. The maximum take-off weight is about 65 tons, and the load capacity in the ultimate state can reach 20 tons. However, this is only a paper performance, and it will not actually take off like this. Chang Haonan has participated in the improvement work of Yun8 III platform before, so he is naturally quite clear about these indicators. After a short pause, he continued to add: "If the new medium-sized transport aircraft uses two large bypass ratio turbofan engines as power, it will definitely be larger than the Y-8 and C130 in any case, 80 tons. This is still considering that military transport aircraft require excessive structural redundancy, and it is also There is a demand for short take-off and landing on poor-quality runways, otherwise according to the standards of civil aircraft, a push of about 100 tons is more than enough. " After all, the core machine of the Turbofan 10 is the foundation of the 4th generation. Even if it is currently in a low-calibration residual state due to process and material problems, the final thrust indicator cannot be weaker than the PS90A, and the fuel consumption and lifespan are not to mention. Mentioned. ?Two PS90As can propel the 100-ton Tu 214/C909, and the two new engines are obviously no problem. I mean, you just said that the market targeted by the new model is users who want to eliminate the old C130 and An12. Will this be inconsistent with their positioning needs? Ding Gaoheng expressed his concerns. In other words, it is the concerns of other people during the project decision-making process. Because he took out a notebook from the drawer at the same time and wrote down some of the key points that Chang Haonan just said - Although the People''s Liberation Army Aviation itself also has a need to replace medium-sized transport aircraft, it is obviously not urgent as it already has nearly twenty IL-76s of various models on hand and there are still more than a dozen IL-76MF orders to be delivered. . At least the replacement priority cannot be higher than that of the J-11B and J-10A. So it is best to achieve quick return on investment through exporting. In the export of large aircraft, China actually has little decent experience. Although several export orders for Y8F400 have been signed in recent years, the total transaction volume is only single digits. ??In this kind of arms sales to third world countries, the profit on a single product is not much. ?Every single or two business is really a huge profit. ?Of course, the improved version of Yun 8 is a short-term, fast and low-cost project. If you make money, you will make money. But new models require research and development funds. ??Although using the reputation Chang Haonan has accumulated over the years, and of course the value created, it is not difficult to directly help a project get off the ground. But its best to be able to convince people with reason. In this regard, Chang Haonan certainly has no problem. So he immediately explained: "A pure tactical transport aircraft like the C130 has a very single position in the equipment sequence and must be used in conjunction with larger strategic transport aircraft. In the United States, it used to be the C141 and later the C17. The Soviets even directly canceled the An-12 The upgrade plan is to use the Il-76 as a general transport aircraft and pair it with the larger An-22 to perform airlift missions..." "But this is a method that only big countries, or at least regional powers, can afford. Now that the Cold War is over, most countries have begun to relax their investment in military affairs, and they cannot afford to serve such a complex system, so for small and medium-sized countries , in fact, we need less professional models with more complete functions. "Our new transport aircraft can directly refer to the fuselage cross-section of the IL-76, maintaining or slightly reducing the width, mainly reducing the length and wingspan. In this way, although the volume is only 20 tons larger than the C130, it can actually carry cargo The volume is much larger. For small and medium-sized countries, one model covers all needs, and for us, it can also be used as a light transport aircraft in a combination of light, medium and heavy. " You can even consider arranging the hardware system required for aerial refueling on the outside of the wing during design. As long as the oil tank is installed in the cabin, it can assume part of the functions of an aerial tanker..." ?Chang Haonans idea is actually to use one machine for multiple purposes. ? It is hard for people who were here at the turn of the century, especially after 1996, when the Chinese began to bear external military pressure again, to imagine how exaggerated the level of armaments in countries around the world has become after entering the 21st century. After all, during the Cold War, the goal of many armies was to make citizens think they were protected. Now that there is no threat from the Warsaw Pact, even without an army, the citizens can think that they are protected. Therefore, not to mention small countries in the literal sense, even some countries that could be called "great powers" in the past, their armies can still take care of themselves. What are the strategic transportation needs? It may not be something you can catch up with every few years. When the time comes, go rent some strategic transport aircraft. ?There are quite a few countries with this kind of mentality... After hearing Chang Haonans complete plan, Ding Gaoheng did not hesitate for too long and answered: No one can say anything about equipment research and development, so whether the project is approved or not depends on the judgment of the aviation industry and the approval of superiors. Of course, from my personal point of view, your idea should be feasible... Actually, being able to express your stance to this point is actually an agreement. As a technical person and a leader, it is naturally impossible to speak too fully. Then Ill trouble you, Director Ding ?Chang Haonan also breathed a sigh of relief. After the design of Turbofan 10 was finalized, the three new models were, after all, the first batch of independent projects after the establishment of the Aerospace Power Group. Although from his perspective as a reborn person, there will definitely be a huge market in the future. But it is always safer to find your next home in advance. Otherwise, it would be embarrassing if his research and development progress is too fast and the engine has been finalized but no suitable installation project has been found. By the way, Xiao Chang. Ding Gaoheng said as he closed the notebook that had filled most of the page: What are you going to call this new model of engine? The official equipment model names are actually given by the military. Sometimes manufacturers have another naming system. ?For example, J-5 is Dongfeng 101, J-6 is Dongfeng 102... But later, domestic R&D work was in a state of chaos for a long time, and this set of rules was gradually abandoned. As it is developed in accordance with the requirements of the military, it is basically just called the model name directly. In turn, the military sometimes refers to the manufacturer''s name. Turbofan 20 Chang Haonan almost didnt think about it before he put the name on it. "The turbofan 11 is the power to copy the GJ8, the turbofan 12 is a model that was discontinued in the 1980s, the turbofan 13 is a core machine model proposed by Liyang in 1997, and the number 14 has been used by the turbojet 14 , and it is also considered a new model, so skip over and leave the turbofan 15 for the real fourth-generation engine..." Instead of continuing to line up one after another, this large bypass ratio turbofan is a brand new beginning for our country, so it is better to get it right in one step and jump directly to Turbofan 20..." Although the situation is similar to that of Turbofan 10, whether it is Turbofan 15 or Turbofan 20, they have almost no technical relationship with the previous model of the same name. But once you get used to this, its still hard to change. In this regard, Ding Gaoheng, who has no baggage, naturally follows the good path. Then, the two continued to chat about other things related to Turbofan 20. After about half an hour, Chang Haonan was ready to get up and leave. ?However, just when he was about to find a chance to say goodbye, he suddenly remembered something. Speaking of which, Director Ding, when will the first commercial route operation of C808 be scheduled? Chang Haonan asked: It seems that I havent received the invitation from Hufei yet. He had made an agreement with Li Yabo before, letting the latter strive for the opportunity to participate in the C808''s maiden flight. But the latter was distracted by him halfway to study carbon fiber laser processing and prepare to publish nature. This research cycle is relatively long. So, he, the mentor, still had to make up for the missing piece. Hearing Chang Haonan''s question, Ding Gaoheng was stunned for a moment, and then realized that Chang Haonan, as the leader of the Aviation Power Group, had indeed not received the situation report from Hufei. Thats right, it was originally planned for November, but now it may be postponed to March or April next year. Ding Gaoheng replied. "ha?" ?Chang Haonan was stunned. To be honest, he hasnt encountered a project delay for a long time... ?Especially for C808, even the evidence collection has been completed, so the follow-up process should be smooth. ?But soon, Ding Gaohengs further explanation made Chang Haonan change from surprise to joy: "Ermao''s Ivchenko and Motorsic had some troubles in the delivery of some parts, which caused the engines on the mass-produced machines to not come off the production line. Now the Ufa Engine Industrial Complex and the Moscow Salyut Factory We are looking for ways to fill this gap..." That would be great ?This was originally part of Chang Haonan''s plan, so his expression at this time was probably similar to Jim Hacker''s when he just heard that the former prime minister died of a heart attack. After recalling almost all the pain he had experienced in his two lives, he barely suppressed his smile: Thats a shame. "According to the contract, they may have to pay us a large amount of liquidated damages..." (End of this chapter) Chapter 868 global nuclear balance Chapter 868 Global Nuclear Balance ?After leaving the Commission of Science, Technology and Industry for National Defense, Chang Haonan quickly contacted Wu Yifan. I learned that the latter is in the country. ?So, he asked the other party to meet him out the next day. ?The location is naturally in the private room on the second floor of the Torch Group canteen. Compared to a few months ago, Lao Wu has become a lot better. ?But the price is that the passive skill of seamlessly camouflaging the Buryats is no longer available. Brother Nan, what a coincidence. I was planning to ask you out in the next two days. After meeting, Wu Yifan said first. Is there something urgent? Chang Haonan, who had just picked up the chopsticks, stopped for a moment. Its not an urgent matter, otherwise I wouldnt have waited to meet you to talk about it. ??Wu Yifan picked up the teapot and poured a glass of water for each of them, while replying: What I heard last month was that the denuclearization steps in Ermao were suddenly suspended. "ah?" Chang Haonans pupils shrank slightly in shock: Er Mao dares to do this? ?This is really important. A huge problem caused by the disintegration of the Soviet Union was the huge number of nuclear weapons scattered in the territories of the former republics and the loss of unified custody. It is not only troublesome for other countries, but also for the CIS countries themselves except Russia - Since control of nuclear bombs is still in the hands of Moscow, these nuclear weapons in their hands are essentially bludgeons. Can neither be fired nor detonated. But it cant really be treated like a mallet. ??No one can suffer if it is leaked due to improper storage, or if it is stolen and the warhead is dismantled and the entire dirty bomb is taken out. So most countries got rid of these hot potatoes as quickly as possible soon after independence. But one country has a special situation. It is Ermao. There are too many nuclear bombs deployed on its soil. So that in 1992, it was the third largest nuclear arsenal after the United States and Russia. Far more than the sum of the following three constants. ?Furthermore, Ermao itself is a country with certain scientific research capabilities, and no one can guarantee that it will not be able to unlock nuclear weapons. Therefore, in 1994, the five permanent members specially formulated a Security Council Resolution 984: ??If a nuclear-armed country gives up its nuclear weapons and returns to its status as a non-nuclear country, the permanent members of the Security Council will jointly guarantee not to use nuclear weapons against that country. ?Then, the "reassured" Kiev regime began to gradually destroy and transfer its nuclear arsenal under the joint supervision of the United States and Russia. ?In the original timeline, this process probably lasted until the beginning of the 21st century, when the last silo deploying RT23 intercontinental missiles in Ermao was dismantled. But I havent heard of any duplication in the process... Its not Ermao. Ermao is eager to get rid of these things quickly. After hearing Chang Haonans doubts, Wu Yifan shook the chopsticks in his hand: Didnt I tell you when we last met that there were some conflicts between the United States and Russia on the nuclear issue because of the Allied Forces Operation? ?Chang Haonan nodded, indicating that he knew. This is also the basis for his layout using the D436 engine First send Lao Wu to poach key technical personnel from the Ivchenko Design Bureau and Motorsic Factory. It is not necessary to dig into China. ?As long as you are not in Ermao, you can go anywhere. The main reason is that they are unable to supply engine parts as scheduled, resulting in a large amount of liquidated damages. These two companies are on the verge of life and death, and they cannot afford liquidated damages. According to the contract, in this case, Ermao Official, as the guarantor of this transaction, will bear the liability for compensation. But even to buy natural gas for 20 cents, he had to borrow money from a big hair, and obviously he couldn''t afford to lose it. ?Then the only option is to take the path of compensation in kind. Chang Haonan actually had this idea a long time ago. Its just that it was just an idea before. After all, the Tu-160, as the largest strategic bomber with the longest range in the world, is not just a simple weapon.????It is also part of the global nuclear balance. Even though the Cold War era has passed, any nuclear-related issue is still highly sensitive. It was not until the end of the Allied Forces operation that some conflicts arose between several countries that had a tacit understanding on the Ermao nuclear issue. In addition, China itself is one of the five good people who legally possess nuclear weapons, which made this matter at least theoretically possible. possible. but That is, it is theoretically possible. Even Chang Haonan himself has to admit it. Not completely sure. 50/50 success or failure is a relatively optimistic judgment. But from what Lao Wu said, it seems that the situation has changed again? After lowering his head and taking a sip of soup, Wu Yifan explained: In the beginning, this contradiction was just that the Americans put pressure on Ermao to destroy all nuclear vehicles, and they could not hand it over to the Russians in the name of debt repayment. As for the debt, the Americans can help pay it off. Actually, this change only involves about 6-8 Tu-160 bombers and about 20 rail-mobile intercontinental missiles. Other vehicles are still being destroyed as usual. But later, the two sides seemed to be increasingly noisy, causing the entire denuclearization work to be suspended, or at least greatly slowed down..." After listening to the whole process, Chang Haonan didn''t know what to say for a while. Although it has been just over a year since he changed the outcome of the Allied operations, the impact has already been felt far beyond the Balkans. Since the 1990s, the U.S. militarys prestige as a soldier from heaven has been its core capability in implementing its national strategy. But there is another side to the role of this property. God cannot bleed. ?The U.S. military chose to stop its losses and retreat with this in mind, fearing that it would repeat the mistakes of the "Talking Tree" if it continued to fight. At any rate, a tie was maintained between the two sides. But obviously, if you have a tie between a superpower and a small country, there will already be a big problem in itself. Once the idea of ??"Heavenly soldiers are just that" arises, it will be difficult to completely eliminate it from other people''s minds unless they perform another plowing and sweeping of caves... Overall, this should be good news. But once nuclear-related issues unfold, either nothing will happen, or something big will happen... In short, the scalp is numb. Lets take it one step at a time ?Chang Haonan sighed, and then solemnly asked: You should pay more attention to the information related to this matter, but do not take any substantive action unless you receive a domestic request. Old Wu quickly nodded obediently: Of course I know this, but Im not bold enough to touch on anything related to nuclear weapons After finishing speaking, he paused for a moment, and then he probably wanted to change the topic to a lighter topic, so he asked again: Speaking of which, Brother Nan, I remember you told me before that after Ermao breaks the contract on the delivery of the D436 engine, you will need to buy some more stuff from them. Now that they have basically lost the ability to execute the contract, what are you going to do specifically? ?However, Lao Wu didn''t know that the new topic he just changed was actually the same thing as before - ?Chang Haonan has not fully mentioned the idea of ??"bringing back a few Tu-160s" to anyone. ??It was just a side-note made by Ding Gaoheng to the superior unit many years ago. The result... is naturally what I want. Otherwise, we would not have sent a delegation to inspect the condition of those aircraft in 1995. ?However, it is not the time to say it yet. So, Chang Haonan took a deep breath: I havent thought about it yet. According to the contract, liquidated damages will only be incurred if the delivery is delayed for more than half a year. The longer the time, the greater the amount, so... lets wait until next year... Actually, he was waiting for an opportunity. An opportunity to cooperate with Mao and take advantage of the Americans. According to the original timeline, in more than a year, the US military will rush into the imperial cemetery without looking back. That process requires the two countries to open their airspace as a logistics transportation route. But todays historical process has changed beyond recognition, and Chang Haonan cannot guarantee 100% that these things will happen as they are. You can only take one step at a time. (End of this chapter) Chapter 869 Beast mount J-11B Chapter 869 The Beast Mounts J-11B Forget it lets not talk about Er Maos matter for now. Chang Haonan waved his hands and decided not to think about the things he couldn''t change for the time being, but to change the topic in a real sense: When we met before, I told you that if there was a chance, we could try to build a transportation line to the Levant region on the east coast of the Mediterranean. Are there any plans for this? "Um" ?Wu Yifan lowered his head and played with the tea cup in his hand. After pondering for a moment, he replied: I cant say. ?Chang Haonan did not speak, but looked at the other party with questioning eyes What does this hard to say mean? In the past few months, I have already figured out a route. From the South Caucasus, usually Sukhumi in Abkhazia, I fly directly to Syria in the name of cargo. In this way, I only need to clear the relationship between the two ends. Lao Wu replied: "As a result, in the past few months, the situation in Damascus has been more complicated, and the relationships I had established before were all in disarray...especially the group of people responsible for entry and exit approval procedures, who have been replaced from top to bottom. Thanks to my vigilance, Im very sexy. Last month I took a trip with completely legal cargo, but someone almost turned the cargo hold upside down..." Chang Haonan roughly recalled that the summer and autumn of 2000 should have happened to be the transition period when Hafez died but Bashar had not yet fully taken over. Chaos is normal. The latter learned a lot of Western things when he was young. At this time, he was still in a relatively imaginative stage, so many of his policies after coming to power were quite different from his father''s. It can be handed over smoothly without fighting, which is already very good. Its right to be more vigilant. Chang Haonan nodded: Things will be smooth when things go slowly, and people will be safe when they are slow. This matter is originally a long-term plan, and it is relatively sensitive. We must ensure the safety of the route to the greatest extent. Of course Lao Wu understands this, but the feeling of missing the mark but falling short is still very bad: The main problem now is that the border between the three countries of Iraq, Syria and Turkey is a large mountainous area, which should have been an ideal smuggling channel, but neither Baghdad, Ankara nor Damascus can control this place. There are many Kurdish armed forces in the mountains. I inquired through many lines, but I couldnt find a reliable way. Even the American officer I know told me that the supplies they sent to a group of Kurdish armed forces were robbed by another group on the way..." Listening to the other party''s complaints, Chang Haonan also showed a helpless expression. ?This kind of force that is still in a tribal nature, if they can''t find a person with enough prestige within them, then there is no hope for outsiders. ?Especially, the Ku people themselves are not yet a nation in the traditional concept, but are closer to a group of people with complex origins and similar living customs. That would be even more troublesome. Would it be better to avoid that place or avoid it He had no choice but to suggest: "Either you can see if you can take the Caspian Sea and the passage left by the ancient Silk Road, or if you have contact with the EU now, you can try taking the Mediterranean sea shipping, but the latter one may be difficult for Europeans to The lion will open his mouth." ?Smuggling under the cover of "humanitarian relief supplies" is a traditional European art, but compared to Eastern Europe and the Middle East, which can fool people with just a few dollars or even supplies, Old Europe''s appetite is much greater. ??Although Chang Haonan''s support for Wu Yifan''s becoming an official was not for profit, the latter still wanted to make money by taking risks to do such things. Lets take a closer look at the situation after I return to Ermao After speaking, Wu Yifan picked up the cup and drank the wine in one gulp. ?After meeting Wu Yifan, Chang Haonan stayed in the capital for about a week in order to wait for Zhuang Bingchang to arrive. ?Mainly emphasizing to the latter that this project involves many participants, and except for the experimental field in Mongolia Province, others such as Beihang University, China National Space Administration, and Institute of Geology and Geophysics are basically all in Beijing. So firstly, try not to make any job transfers before the project is completed, and secondly, after the research officially starts, you may have to stay in the capital. The latter was just regarded as a normal work requirement, so I agreed without much thought. It can be regarded as resolving a piece of Chang Haonans heartache ? ?His experience since his rebirth has shown that there is no fatalism in this worldview, that is, multiple routes will lead to the same result as in the previous life. So as long as Zhuang Bingchang can be kept in the capital, there is a high probability that there is no need to worry about his safety. ?Of course, in the final analysis, this is a temporary solution rather than a permanent solution. He can manage one Zhuang Bingchang, but not a hundred or a thousand. In the final analysis, we still need to improve the overall public security level... With these thoughts in mind, Chang Haonan put Zhuang Bingchang on the plane back to Ji Province, turned around and flew to Shengjing himself. Although the aviation power and aviation industries have been separated at the project level now, after all, whether the aviation engine leaves the aircraft or the aircraft does not have the aviation engine, it will not reach the sky. The business relationship between the two parties is still quite close. What''s more, when the Turbofan 10 project was established, it was still the period of the head office, which resulted in a considerable number of project team members now working in the Aviation Industry Group, especially the 112 Factory and 601 Research Institute, which are responsible for the development of the J-11WS demonstrator platform. Therefore, although it is the design finalization appraisal of Turbofan 10, the launching ceremony was held at Factory 112. Chang Haonan, as the chief engineer and representative of the Aerospace Power Group, personally announced on the stage that the national appraisal process has officially begun. The background is the two J-11WS parked head to head. ?In the next few months, they, as well as another J-11B mass-produced aircraft from the trial production batch, will fly all over China with the appraisal team of the Air Force and the General Armament Department. Three aircraft and six engines are operated at the same time in order to increase efficiency as much as possible. Otherwise, the extreme weather test alone would probably take half a year. As for why there are only two airplanes in the background ?After Chang Haonan announced the start, the last step of the launch ceremony was the flight performance of the J-11B with the production batch number 00-01. ??Moreover, its not just an ordinary flight show ??As the sharp roar of the engine sounded, the crowd on the tarmac that was originally watching Chang Haonan turned around At the end of the runway in the distance, a fighter jet painted in air force gray appeared at some point. It was slowly accelerating and preparing to take off. ??For most people who have never seen the J-11B taking off after being replaced with a turbofan 10A, this scene does not seem to be unusual. But Chang Haonan could see that the acceleration of the plane was a bit low. Even lower than the original Su-27SK. ?This is obviously not normal. Sure enough, under normal circumstances, the aircraft only needed less than one-fifth of the runway length to take off. This time, it used up nearly half of the runway length before slowly raising its head. And the movement is very gentle. It''s okay for pilots flying passenger planes to fly like this, but few fighter pilots have this style. but ??As the plane gradually got closer, the crowd watching also let out bursts of exclamations From the angle of the ceremony venue, it can be clearly seen that the wings and bottom of the fuselage of this J-11B have almost been filled with all kinds of ammunition! Quite a few of them, even the air force members in the crowd have not seen them completely. Im going to Chang Haonan put his hand above his eyebrows and looked at the J-11B that was climbing in the distance with a look of shock. He can naturally recognize all ammunition models. On the wingtips and the two outermost pylons of the wing are four PL8 short-range air-to-air bombs. ? ?The two pylons slightly inside are hung with 4 Pili 12 air-to-air bombs that have not yet been formally finalized in the form of double pylons. At the innermost side of the wing and in the center of the belly are four huge KAB1500KR TV-guided bombs. ?Finally, also under the air inlet, there are two missiles similar in appearance to the R33, but I cant tell whether they are the original R33 or the prototype of the Thunderbolt 13... A rough calculation shows that the total load is about 8.2 tons. ?This mounting method will directly turn the aircraft into a brick, which of course has no practical significance. But it is the simplest and crudest way to demonstrate performance. Until the plane gradually disappeared from sight, Chang Haonan said to Liu Gaozhuo who was sitting next to him: You guys went to the extreme this time ?Different from the two J-11WS, the J-11B of batch 00 is an aircraft belonging to Project 11. Its participation in the identification of turbofan 10A is only a secondary purpose. It is mainly to accumulate flight data under extreme conditions for the J-11B itself. So the specific flight arrangements were made by Factory 112, and Chang Haonan only knew the general situation. This time, I was also shocked. The original Su-27SK only has a theoretical bomb load of about 6 tons, but because it cannot use precision-guided weapons for the ground, there is actually no chance to use up these 6 tons. But the J-11B/Su-27SM are serious multi-role fighter jets. At this time, Liu Gaozhuo''s attention was focused on the crowd in front of him. Looking at their reactions, he showed a smile that showed he had everything under control: Fortunately, what we have tested before is completely within the capabilities of the new model. Besides, doesnt this also mean that the performance of the power system is good... (End of this chapter) Chapter 870 New engine test platform Chapter 870 New Engine Test Platform ?This kind of mount is not to show the performance of the power system. Although it is relevant, it is still a bit reluctant. The core is that progress in structural design has led to an increase in load capacity and a reduction in the dead weight of the aircraft itself. Resulting in an additional three tons of bomb load on the original basis. reached 9 tons. Of course, as the KAB1500KR accounts for most of the weight of the mount, it is actually not suitable for use by a single-seat fighter. ? Most TV-guided weapons require humans to control the ammunition in the loop throughout the entire process. Very few have image matching capabilities, which can only reduce the human burden at the end. So for a single-seat aircraft, the pilot can only hand over the flight to the autopilot system, and then concentrate on controlling the ammunition by staring at the multi-function screen. This is of course nothing during training, but in actual combat there are few times when you can be so comfortable. ?Especially in the Chinese Air Forces combat scenarios, opponents generally have very strong, or at least air power capable of fighting. ?Thinking of this, Chang Haonan asked Liu Gaozhuo next to him: Mr. Liu, do you have any relevant plans for the two-seater model of the J-11B? In the last generation, from the J-11A to the J-11B to the J-11BS, each sub-model actually undertook different technical verification functions, which can be regarded as a small-step development method. So in the end, we came up with the J-16, a three-and-a-half-generation fighter that looks similar to the J-11BS but is a master of it all. But todays J-11B, except for the avionics system which is still at the average level at the turn of the century, other parts are completely in the shape of three and a half generations. Even at the time of design, power and heat dissipation margins have been left for the replacement of radars and flight computers with higher power and higher heat generation. Once the relevant equipment is developed and developed, just replace it directly. So, if we build a two-seater on this basis, it can be used directly as a genuine multi-purpose fighter. You mean J-11BS? Liu Gaozhuo smiled mysteriously: Of course. However, we do not intend to make the J-11BS exactly the same model as the Su-27UBM. "oh?" ?The other party wanted to show off, and Chang Haonan was happy to cooperate: Tell me in detail? Su 27UBM is the two-seater version of the Su 27SM. ?According to the agreement, Sukhoi and the 601 Research Institute jointly completed the development of an improved single-seat version. Only some airborne equipment differs between the J-11B and the Su-27SM. ?However, the contract does not include the two-seater model. Of course, in principle, there wont be a big difference between the two. It is nothing more than heightening the cockpit and tail, and imposing slightly greater restrictions on overload at the flight control level. But obviously, Liu Gaozhuo was ready to order some flowers. There will definitely not be any big changes. After all, the ease of maintenance during the use of the troops must be taken into consideration. Liu Gaozhuo replied: But we plan to use side stick control on the J-11BS, but we havent decided yet whether to be more radical and use side sticks for both the front and rear seats, or whether the front seat should remain unchanged and only the rear seat should be changed to a side stick. This is indeed not a traumatic change. ?Especially after the airfoil control and engine control have been implemented by electronic transmission, the joystick sends out electronic signals, so technically speaking, it doesnt really matter where it is placed. But for human experience, the difference will be huge. Well-designed side sticks, such as the Rafale, can give pilots an all-around more comfortable control experience. ?? And the poorly designed side sticks, such as the F16, are properly controlled by the master, so cute and new that they were forced to increase the proportion of a two-seater trainer type. The other thing is, Mr. Chang. After a slight pause, Liu Gaozhuo continued: Does your aviation development group have any plans to develop vector propulsion technology based on the turbofan 10? This ?Chang Haonan did not answer immediately, but lowered his head and thought for a moment. ?The other person asked about the Hangfa Group. But as the chief planner and the chief engineer of the Turbofan 10, he could not say that he had a single say in this matter, but at least he had the final say and influence. It can only be said that this is one of the goals, but there is no clear timetable for it. In the end, he gave a more conservative answer: Even if this round of identification is over, the two basic models of turbofan 10A/B have only completed the design and finalization. For us, the top priority is to prepare for production and finalization, especially to increase the yield rate and output. Mr. Liu, didnt you go to the capital to find me specifically for this matter before? No matter how good the performance of the product is, it must be able to guarantee the output... An aircraft under extreme load conditions cannot perform a variety of flying maneuvers. It is already quite good if it can maintain level flight and the most basic maneuverability. Furthermore, the maximum load capacity and the maximum fuel capacity cannot be achieved at the same time. Even heavy fighter jets like the J-11B will have limited range. Hence, this flight demonstration did not last long. ?The plane circled Beiling Airport and hovered at the edge of everyone''s field of vision for a few times before reappearing in the sky at the end of the runway. From Chang Haonans perspective, we can see that the pilot also drained some fuel before approaching the airport to ensure that the maximum landing weight did not exceed the standard. Even so, when landing, the hydraulic structure of the main landing gear was almost compressed to the limit. Even Chang Haonan could see the wings trembling slightly through the telescope... After using up most of the length of the runway, the plane slowly stopped and then entered the taxiway. It took a few more minutes before it finally stopped on the tarmac, not far from where the ceremony was held. Now, other people who dont have telescopes can clearly see the amazing stores under the aircraft. ?Especially some comrades wearing air force uniforms, their eyes were shining. What is the concept of a load of more than 8 tons? It is equivalent to flying with a J-7 hanging on it. ??The largest combat aircraft currently equipped by the Chinese Air Force is the H-6D, which only has a maximum bomb load of 9 tons. Actually, because there are not that many racks, the most suitable mounting solution is 5-6 tons. ?And now a tactical aircraft can even produce the same level of capabilities... It was something that was completely unimaginable in the past. Looking at the aircraft in front of them with its teeth and claws arrogant and even showing some murderous intent, several representatives responsible for planning the identification task suddenly felt that the identification plan they set seemed to be a bit conservative... Although the ceremony was held in Shengjing, the design finalization appraisal itself was centered on Haojing. After all, the Flight Test Institute is located here. Aiming at different environments, we went to several airports with typical climates such as Hailar, Shigatse and Lingshui to complete some subjects. So, the day after the identification mission officially started, the group was divided into several batches and moved to Haojing together with the three aircraft participating in the test flight. Chang Haonan himself has actually not been here for a while. ?Coming here this time, I found that Yanliang Airport is quite different from a few years ago. At least the tower in the distance and the runway facilities can clearly be seen to have been renovated. ?An Il-76 transport aircraft painted in the color of a test pilot was parked not far away. The three black numbers "760" are painted on the side of the fuselage. If you look carefully, you can also find that this aircraft is different from the ordinary IL-76. It has only three D30KP2 engines. Inside the left wing is a pod with a significantly different shape. ?As a reborn person, Chang Haonan certainly knew the identity of this plane. The No. 760 flight test platform belongs to the China Flight Test Institute. The function is similar to the No. 086 modified with Figure 16 in the past. But compared to the No. 086, which can only hang the engine under the fuselage, the Il-76 with a single wing obviously has more space, and can even support the hoisting of a giant engine with a diameter of 3.5 meters like the GE90. And more test equipment can also be installed in the engine room. In Chang Haonan''s impression, this aircraft was purchased by China in 2004 and transferred to Yanliang in 2005. It is now five years ahead of schedule, which is obviously a big plus for him, the senior management of the Aerospace Power Group. So, until he got off the plane, Chang Haonan''s eyes were still glancing in that direction unconsciously. ?The person who picked him up on the tarmac was Huang Bingxin, the newly succeeded deputy dean of the Flight Test Institute and dean of the test pilot academy. ??He is also the pilot who performed the first flight missions of the JH-7 and J-8II. ??Although by the time Chang Haonan was reborn, he had already reached the upper limit of 48 years old for flying, so the two had never interacted before. But before the former was reborn, the deeds of this test flight hero had already been declassified, and he had even gone to give them a report. So Ive heard the name before. Hello, Dean Huang. ?Chang Haonan quickly walked up to Huang Bingxin and shook hands with him: I have admired your name for a long time! Before the latter could speak, he was stunned by the enthusiasm: "Mr. Chang...have you heard of me before?" In this era, even within the aviation system, there is not much publicity for test pilots. ??If you have never participated in a project together, then it is normal for you to not be familiar with each other. Of course, I didnt catch up with the JH-7 and J-8II projects, but I was fortunate enough to participate in their subsequent models and heard about them from my seniors. Chang Haonan used only a few words to close the relationship between the two people who met for the first time. Then I am lucky. ? Huang Bingxin looked calm on the surface, but he felt happy to be recognized at a glance as a former test pilot: Its a pity. If I had been born four or five years later, I probably would have had the opportunity to participate in the test flight of the JH-7A In fact, when they met just now, Huang Bingxin noticed Chang Haonan''s eyes constantly looking far away. So, after some pleasantries, he offered to take the latter over to have a look. This is supposed to be a new flight test platform? Chang Haonan came to the nose of No. 760 and discovered that the nacelle on the inside of the main wing was actually empty. It was just a tube with two transparent ends, perhaps used for counterweight: Ive never heard you mention it before... Thats right. Huang Bingxin nodded, and then replied: When the Aerospace Power Group was established last year, didnt you say that you planned to develop a large bypass ratio turbofan engine based on the Turbofan 10 core engine? At that time, we considered that when the old 086 platform was used to test the turbofan 10 prototype, the space was already very limited. If the bypass ratio was increased, it would not be able to accommodate it. "So in order not to hold you back, we specially bought an Il-976 measurement platform from the Gromov Test Flight Institute last year, and then entrusted Ilyushin to renovate it, and then modified it into what it is now. Just last week In place. This can be considered a surprise for you... (End of this chapter) Chapter 871 Model blowout period Chapter 871 Model Blowout Period Surprise, that is indeed a surprise. But Turbofan 10 had been tested on an aerial platform about three years ago. As for this No. 760 test platform, it can only be used after the new model comes later. So, Chang Haonan, led by Huang Bingxin, looked around the plane and prepared to leave. Dont you want to take a look inside the cabin? The latter asked. ?Chang Haonan hesitated for a moment: Forget it, there will be plenty of time in the future, lets go to the finalization appraisal meeting now Yanliang is Chinas only national-level certification and flight test agency. All products related to aviation need to go through the process at least once here. In the past few years, it was okay when there were few projects. Recently, as more and more work has been done in the aviation industry system integration, the schedule of various facilities and equipment has become a bit tight. Even meeting rooms. Sometimes there are even three sessions a day. ?Hence, it is best not to waste time. ?Although the historical and practical relationship between the aviation force and the aviation industry system is quite complicated, at least at the project level, the two parties are still Party A and Party B respectively. Design appraisal, to put it bluntly, is equivalent to Party As comprehensive assessment of the performance of Party Bs products to verify whether they have the performance promised when the project was originally established. ?Everyone who has worked for Party B knows that before handing over the finished product to Party A, they must first test it according to the same standards, or even more stringent standards. The same is true for turbofan 10. Hence, the subjects involved in the finalization appraisal process have actually been done in the research and development process. ? Its just that this time, the leader changed from technicians of the aviation power system to representatives sent by the General Armament Department. ?Of course, there are tens of thousands of tests involved in the entire project cycle, and not all of them must be repeated - For example, the basic performance of the engine, thrust transient, steady state and transition state functions, intake distortion, mid-air starting, on-off afterburner and windmill rotation are a set of eight major items, about 70 minor items, and thousands of test points. Basic test suite. ??If you do all these things again, you wont have to do anything else in the next year. Hence, when the factory conducted tests before, military representatives were already deeply involved. Just go through the administrative process and make a determination on the results at that time. From this perspective, the design finalization appraisal actually starts not from the day before, but from the day of project establishment. In short, although the testing process requires Chang Haonan to follow the entire process, there is actually not much specific work for him to handle. ???It plays more of a coordinating role and serves as a psychological anchor. Furthermore, the development process of Turbofan 10 has been smooth sailing, which is felt by everyone involved. So the overall atmosphere of this working meeting was quite relaxed. And it didnt start for several hours like most meetings of the same type. In the end, only Chang Haonan and Hai Yide, as well as a few representatives of the General Armament Department, stayed for a while longer to serve as signing machines for the hard workers. I think I signed more today than in the past year combined. ?Chang Haonan put down the pen, rubbed his sore wrist, and complained while looking at the pile of documents next to him that was 20 centimeters high. Haiyide next to him is obviously much more experienced in this regard: Youll get used to it if you sign too many. I feel like I need to find time to get a seal... It should be equivalent to a signature, right? No one said no, but we seem to be used to signing directly. How should I put it, using a seal will give people a sense of... At this point, Haiyide paused for a moment and organized his words: It gives people the impression that your handwriting is so poor that you are not visible to others. I dont care about that While talking, several people had already sorted out the documents on the table, and then, under the joint witness of both parties, they put them into a special file bag and finally affixed the seal. At the same time, people holding the next meeting have already appeared outside the conference room door one after another. Just when everyone was about to give up the place, someone suddenly called Chang Haonan. In fact, this is not surprising. ?Chang Haonan''s face is quite recognizable, at least in the circle of aviation system model chief engineers. Chang Haonan turned around when he heard his name and quickly recognized a slightly familiar face in the crowd. You are...Guo Jingshan, Mr. Guo? Guo Jingshan, the chief engineer of Bingfei Group in charge of Zhi-9 research and development. A few years ago, Chang Haonan had an encounter with the other party. also in Yanliang. ?Several helicopter models currently being promoted by Bingfei have more or less participation from Torch Group. ?However, relatively speaking, Liu Hongbo is the one who has more dealings with them. Its a pity that the latter is not a member of the Turbofan 10 R&D team, so he does not appear here. Mr. Guo, are there any new models that need to be tested for certification? After a brief greeting, Chang Haonan asked casually. ??The last time the two met because of the Z-9, the Flight Test Institute did not even have a complete set of flight test standards for helicopters. However, as the demand for helicopters in various industries has increased in recent years, the investment, funds and resources in this field have gradually increased, especially the two cooperations with Eurocopter and AgustaWestland, which can be regarded as helicopters for China. The industry has laid a pretty good foundation. At least there is no need to ask and answer questions at the same time as in the past. "right." ??Guo Jingshan motioned to the others behind him to enter the conference room, while he and Chang Haonan stayed at the door: Would you like to guess which model it is? Chang Haonan asked the question just out of personal interest. Now that the other party asked this question, he was naturally willing to cooperate: I remember...Professor Liu showed me a special armed helicopter that you modified based on the Z-9? Well...thats not the case. ?Guo Jingshan waved his hand: The dedicated Wuzhi model does not have a particularly high priority in our planning sequence. After all, the Army Aviation Corps..." He stopped when he said this. It would be impolite to continue. ?But Chang Haonan also understood what the other party meant. ?Dedicated to Wuzhi, basically only one user is Army Airlines The armys big brother has the largest personnel and equipment. Although the amount of funds obtained is not large, not much can be used to update equipment. Simply put it is poverty. So its ?Chang Haonan cant think of anything. In most helicopter-related projects, he participates in remote control. Im really not too impressed. ification ??Guo Jingshan couldnt hold his lips down at all: Its the one developed in cooperation with Eurocopter. Its called NH90 over there Now I have an impression. To be honest, participating in the research and development of NH90, the more important role in Chang Haonan''s heart is that it was the fuse that detonated the quality problems of Japanese companies. When the other party reminded me, I remembered that there was a domestic isomer. The Z12 model...has entered the final testing stage? To be honest, he was still a little shocked. To ensure sufficient maneuverability and power redundancy, a 10-ton helicopter needs to be equipped with a 1400-1800kw turboshaft engine. But his 1600kw turbine shaft is still a piece of cake... It seems that the main contradiction in today''s aviation system is still the contradiction between the growing demand for high-performance power and the unbalanced and inadequate development of different types of aviation engines... Ahem As for joint research and development, the foundation for many things has been laid. We have made some modifications according to our own needs, but the progress is still faster. ??Guo Jingshan obviously saw the reason for Chang Haonan''s shock, so he explained directly: "There are currently two options for the power system. The civilian model directly uses the RTM322-01/9 developed by Rolls-Royce and Turbomeca. For the military model, we changed a set of reduction gears and temporarily paired it with the TV3-117VM, which is the same model as the Mi 17... " ??The NH90 in this timeline does not have many shortcomings caused by design flaws in the previous generation. It is also very normal that multiple units have taken a fancy to it at the same time, thus leading to both military and civilian models. Obviously, the results of Chang Haonan''s series of efforts in the past few years finally entered a blowout stage at the turn of this century. (End of this chapter) Chapter 872 Prepare for a rainy day Chapter 872 Prepare for a Rainy Day After completing the task assignment, the specific finalization and identification work was quickly carried out step by step. It is obvious that it is not only the project team headed by Chang Haonan who is paying attention to the situation of China''s aerospace development industry... Haojing City, Weiyang District. Inside the headquarters of Ciro Company. ? Adam Whittle hurriedly walked into the company door with an envelope in his hand, and then quickly walked up the stairs. Compared to more than two years ago, the layout of this building has not changed much, but the decoration inside has become a lot more gorgeous. Whittle and George Breen, who took the lead in negotiating with the Hokyung Engine Group and finally used an M250 engine introduction project to retain Ciro, are still jointly responsible for the daily business here - Its not that the two of them have been standing still in the past few years. In fact, their treatment at Rolls-Royce has been improved to the level of a deputy department manager. The pace of progress is not unsatisfactory. However, as a platform, Ciro''s importance within Rolls-Royce has progressed faster. ?According to general rules, it is even necessary to assign a department manager half a grade higher to serve as the British supervisor. However, the headquarters considered that the two of them were familiar with the situation in China and had already accumulated a certain network of contacts, so they rashly parachuted a leader over. There was a high probability that they would be ignored, which would not be conducive to business development. Thats why there is a situation where two deputies are in charge of the same department at the same time. Fortunately, the two of them have completely different expertise and have been through hardships together, so they havent caused any major troubles in the past two years. Whittle strode all the way and soon arrived outside Brin''s office. The door is open. The former reached out and knocked twice casually, and then walked in. George Brin was sorting out the business reports for this quarter. He raised his head after hearing a knock on the door and saw Whittle already sitting in front of him. ?However, before the latter could explain his purpose, Brin spoke first: Adam, you came just in time, I was just about to go find you. ??He said, turning the pile of forms 180 in his hand, and then pushed it to the other end of the desk. Before Whittle could take out the contents of the envelope, he was interrupted from casting a spell. He picked up the report and took a look: Isnt this growth momentum very good? ? He ??pointed to the above results of a 35% year-on-year increase in sales and a 17% year-on-year increase in profits and said ?Siro''s status can soar like a rocket, and it is definitely not enough to rely solely on an M250 engine that can only power small helicopters and drones. ?That can only be regarded as a life extension at best, allowing the company to barely survive until the next critical time point. ?In fact, what really changed the lives of the two of them, as well as Xiro Company, was the rapid development of China''s air transport industry and the construction of the Luzhou Aviation Industrial Park. This has directly led to the explosive growth of Chinas investment in the aviation industry in the past two years. In the past two years, major Chinese airlines have purchased almost more passenger and cargo aircraft than in the previous ten years combined. As one of the world''s three largest aerospace suppliers, Rolls-Royce benefits from its location in Europe and has also reaped considerable dividends. Siro Company, which was not originally born for this purpose, has naturally transformed into a large joint venture responsible for aircraft engine maintenance, spare parts storage and turnover, and ground staff training. It is not an exaggeration to even say that Luo Luo Hua Xia is divided into Luo. This, in turn, further increases the market share of Rolls-Royce engines in China. ? ? Among the Airbus A330, A340, Boeing 737 and Boeing 767 newly purchased by China in recent years, more than 70% have chosen RB or Trent series engines as power. All in all, everything seems to be in a stable and improving situation. The report in front of Whittle seems to illustrate this point. But Brin shook his head: On the surface, this is indeed the case, but the hidden dangers are actually still huge. He said, turning the table to the third page, and then pointed to a table on it: Our business growth this year mainly comes from the additional batches of Boeing 767s and Airbus A340s that China purchased two years ago and last year. Thats right. ?Whittle nodded. But according to my judgment, the subsequent development of these two models is not optimistic, especially the A340. The economics of a four-engine passenger aircraft of this size are really poor, and Airbus is relatively weak compared to Boeing in the field of cargo aircraft. Brin replied: "As for the Boeing 767, although the order volume and delivery volume in the next few years are okay, the order quantity is too stable and there is no fluctuation at all, so I think this may be due to the impact that China has reached with the United States in its WTO accession negotiations. The impact of the agreement is not entirely market behavior. When the deadline stipulated in this agreement is reached, Boeing, at least the sales of Boeing 757 and 767 in China may face a round of Waterloo. In other words, although we dont have anything to worry about now, the sales situation in the next five years or longer is actually not optimistic. ??Although Whittle is not good at business, the other party has already spoken to this extent, and he will not be unable to understand: Theres nothing we can do about it. After thinking for a moment, Whittle replied in a helpless tone: "We don''t get a share of the pie in the Boeing 737 and Airbus A320, which account for the majority of sales. Although the remaining larger engines have higher profit margins, their sales are much smaller after all, especially the 767 This kind of aircraft is also a two-engine aircraft. "In addition, China has to set aside a sufficient share for its own production of passenger aircraft, so the number of this piece of cake will be even smaller." ?Brin was silent for a while, then leaned forward with his upper body, slightly closer to Whittle: We have to do something, Adam. The headquarters wont be anxious about this matter, but it is very important to the two of us. For a moment, the office fell into silence In order to provide users with more choices and share possible supply chain risks, some passenger aircraft models will use multiple engines or engine-wing combinations. ?For example, the power used by the Airbus A320 is a choice between the CFM56 series of General Electric and the V2500 series of International Aerospace Engines (IAE). But in fact, IAE is a joint venture established by four companies: Pratt & Whitney, Rolls-Royce, Nippon Aerospace Development and MTU. So for Rolls-Royce in the UK, they can make a profit by selling the V2500. But it is different for Ciro Company in China, especially Brin and Whittle. The maintenance and technical training of the V2500 will not be left to them. Proper competitive relationship. Whittle frowned: But even so, we cant change the procurement strategy of the Chinese people. Brin also wears a mask of pain. ?Persuading others to give up A and choose B between two competing products is still within the scope of public relations. But to persuade you not to give up the A320 and choose the 767 or the A340, that is probably something that can only be done by mind control. It''s not a level at all. ? ? Airlines have a set of decision-making processes for purchasing aircraft. They are not 4S stores. You can budget 200,000 yuan and then add money to the down payment of 200,000 yuan. If I have to say it, we can only focus on new models. After a while, Whittle came up with a new idea. New model? Brin quickly went through all the mainstream passenger aircraft models currently under development in his mind: The new generation of 737max and 757 have been delivered. As for the new engine models that have not yet been selected, the only one left is the Airbus A3XX. But it is a 550-seat, three-cabin super large passenger aircraft...can it really have enough sales? A3XX, Airbus super-large passenger aircraft project to compete with Boeing 737. This is the future A380. Its just that this meeting has not yet been officially named. The sales volume of its competing product, the Boeing 747, in China is actually not optimistic. So Brin showed some concerns. ??But Whittle is not too worried about this: China has 1.2 billion people, which is about four times the number of all EU countries combined. Imagine if one-fifth or even one-tenth of these people will use airplanes as their main mode of travel in the future, what a terrifying scale it will be. By that time, their domestic routes may even require such super-large passenger aircraft. ?At the turn of the century, the industrys predictions for the future of air transportation are still mainly center-to-center. That is, passengers in a region are transferred to the regional center airport through regional aviation, and then transported to another regional center through super large passenger aircraft. ?Under this thinking, the demand for passenger aircraft such as 737 and A380 will be extremely huge. The polycentric human geography of China is undoubtedly the second market that fits this model after the United States (population is concentrated on the east and west coasts). In fact, even if it is calculated using a point-to-point passenger model, this conclusion will not deviate much. Its just that at this moment, no one can predict that China will build a unique high-speed railway network in the future, taking away most of the passenger flow that originally belonged to the civil aviation industry... ?Hence, Whittles rhetoric of fighting the future sounds very reasonable. So much so that Brin was convinced without much struggle. This matter can be included in the report to the headquarters at the end of the year... ?He took out a pen, pulled off a piece of note paper from the side, and wrote down what Whittle had just thought: The engine selection for the Airbus A3XX project is crucial to expanding the Chinese market... (End of this chapter) Chapter 873 If you cant beat it, join Chapter 873 If you cant beat me, join ?Seeing this topic come to an end, Whittle finally had the opportunity to talk about his original intention of coming here. He took out several photos from the envelope and laid them out one by one on his desk: Recently, I discovered that there were several brand-new verification aircraft flying in Yanliang, so I took the time to take a few photos. ??On the other side, Brin had already written a note and turned his attention to the photo in front of him: Looks like a few Flankers produced in China... He stopped mid-sentence. Obviously, things are not that simple: "etc" ?Brin picked up one of the photos on the table: This plane seemed to have appeared in last years military parade The part between the two air intakes is different from the normal mass-produced Flanker. There is a protrusion of unknown purpose, so it is impossible to install a belly tandem pylon. Thats right. ?Whittle nodded: I speculate that it may be a device related to flight testing, integrating sensors and the like, so this aircraft is actually a technology demonstrator specifically used to test new aviation engines. In fact, his speculation is very close to the truth. Both J-11WS have been modified with an additional pipeline compartment in the belly to facilitate the replacement of the engine under test and the modification of the corresponding flight control program. This is almost the most obvious feature of this model in appearance. After all, although the J-11B, which also uses the turbofan 10, has been completely transformed in structure, it cannot be seen from its appearance alone. So this means that the new engine they publicly displayed last year may be officially put into use soon? ?Brin put the photo back on the table and looked up at Whittle opposite. As the official overseas representatives of Rolls-Royce, the two of them, and even the British members of the entire Ciro Company, are responsible for certain commercial and technical intelligence collection tasks. This is also an international practice. ?As long as you are not blatantly breaking the law, the host country will not stop you. ??Anyway, open source intelligence analysis is something that everyone understands tacitly. And it may not be possible to analyze anything useful. ?For example, after last year''s military parade, the Americans concluded that "the Turbofan 10 uses a CFM56 core machine". The operation was as fierce as a tiger''s, but it actually helped China a lot. According to Chinese practice, at this time, the product is likely to have been equipped with troops in small batches for trial use. Whittle replied: Last time they suddenly stopped purchasing components from SPEI, I specifically studied Chinas R&D project process. At that time, their aero engines and aircraft were still being developed by the same company, and the former was not even a completely independent project. But now, they have established a new company to completely separate the work on both sides. Obviously, he has not stayed in China in vain these years, at least he has a clearer understanding of the situation of the Aerospace Power Group. I remember I read the analysis last year, which said that this is an engine that is very similar to the F110 in all aspects? Brin is not specialized in technology, but he will still read some analysis articles in the industry. There were many opinions at the time. Some said it used the CFM56 core machine, and some said it was a copy of the AL31F. Whittle paid more attention to this aspect, so he patiently explained: How should I put it? Later, because Snecma Group was sanctioned by GE, it chose to cooperate with China to improve the design of the M88 engine. It is said that the current progress is good. So the current common judgment in the industry is that the new engine of the Chinese people does use, or at least refers to the design of the CFM56 or F110. Otherwise, it cannot explain why the French made this choice. Thats what he said, but Brin still keenly detected some hints from the old mans words: So you think thats not the case? HmmI dont have any direct evidence. Whittle gently touched his chin with one hand, which was his habitual action when he was deep in thought: "But from what I know, China has never been exposed to the F110 series engines in the past, and its understanding of the CFM56 is limited to some highly fragmented information obtained through different channels in the 1980s. As for the use and maintenance of the Boeing 737 , which is not a useful experience for R&D work. According to my personal experience, not having complete technical information at hand is like the foundation is not strong enough. You have to re-reinforce the foundation before building a house. In many cases, it is better to start from scratch, which can reduce a lot of constraints. Hearing this, Brin''s face instantly showed an expression of gloating: "Wait a minute...then the French were deceived by false information?" Although in today''s timeline, the relationship between the British Isles and continental European countries is much closer than in the previous life. But thats only on the official level. For the British, watching the French suffer is still one of the great pleasures in life. ?However, Whittle looked quite serious: Thats the point I want to say today. The former collected several photos and put them back in the envelope: Just five years ago, even to produce engines like Spey, they needed to purchase second-hand spare parts from stock through us. "But now, no matter what technical route they take, they are already on an equal footing with the French...at least in some aspects." At this point, he paused for a moment, and then pointed to the report that was placed next to him: If we really want to think about the next five years, or beyond, what we should worry about most is not Airbus or Boeing, but whether the Chinese models will seize the market in large numbers. A concise analysis made Brin unable to help but restrain the smile on his face. After all, it involves matters related to the company''s business. After a long time, he tentatively asked: But the Chinese are currently preparing two domestically produced passenger aircraft models. They are called C808 and C909. They are both copies or upgraded versions of Russian-made products. It seems that there is no room for us to play? That seems to be the case at the moment. Whittle leaned his upper body back on the chair: "But it needs to be noted that the Russians have lost their complete R&D system in the past. Maybe they can rebuild it one day in the future, but even then, they have missed at least 15-20 years and cannot keep up with the technological progress of the Chinese. speed. I think that after these two passenger aircraft models, the Chinese will definitely consider gradually getting rid of the Russians and seeking more advanced technology. What has happened in the past few years has proven that this process may be unstoppable. So you mean...if you cant beat me, just join? Brin''s tone felt a little tense. Thats not what I said. Whittle quickly denied: I just think that since we didnt block technology before, its better to change our thinking and start cooperating with them in the civil aviation industry. This will at least ensure that we can get a big piece of the pie. At this point, he may have felt that he was showing a bit of capitulationism, so he added another sentence: Moreover, whether they develop independently or cooperate with the Russians, they are almost completely out of our control. In comparison, it is better for us to be more proactive, so that at least we can exert some influence on them in the future..." ?This truth is correct. But there is always a feeling of I voted. Are you going to include this in your annual report? Brin scratched his head: It doesnt matter if we talk about cooperative research and development... No, no, no Whittle waved his hand: The cooperation I am referring to is not simply cooperative research and development...but like IAE, a company jointly established by Rolls-Royce and China Aerospace Power Group. Of course you cant just start with something as big as an aero engine, but you can try it out with some scattered, less important projects first Halfway through his words, he was interrupted by Brin: You wait, you wait How come this joint venture you are talking about looks so much like our Xiro Company? As a result, Whittle highlights a straightforward point: Of course its us If we can become a subject with R&D and production capabilities like IAE, then we dont have to rely on London for everything. By then, the status of you and me will be..." Whittle did not continue speaking, but stretched his hands flat and made a slight upward movement. The meaning is self-explanatory. (End of this chapter) Chapter 874 Design finalization is a new beginning Chapter 874 Design finalization is a new beginning Autumn passes and winter comes. In fact, the penultimate project in the entire national identification process was completed in November. ??The reason why we waited for nearly a month with a large team of people was to find the time window for the last test Special test for high cold. This is a content that has just been added to the final test standards as the China Airlines standards are gradually improved. No model has ever been carried out before. The good news is that the J-11WS verification aircraft uses the Su-27UBK airframe. As a model designed and produced by the Soviet Union, the aircraft itself has experienced the severe cold test of the Arctic Circle. So, there are only two turbofan 10 engines that need to be tested this time Under steady-state working conditions, the internal temperature of the aircraft engine reaches thousands of degrees, and even the surface will be heated to a very hot level. Naturally, there is no need to consider low temperature issues. However, the transient process from stop to start does not work. Especially many materials will undergo property changes under extremely cold conditions. Typically, almost all metals are cold brittle, with increased strength but decreased toughness. Whether an aero engine with a complex structure and huge changes in operating conditions can withstand such abnormal changes is what the special high-cold test will determine. In addition, this test will also pave the way for the subsequent introduction of similar tests into national standards related to the entire machine. Hailar, Dongshan Airport, Meng Province. Chang Haonan was wearing the thickest cotton-padded coat he had ever worn in his life, and two layers of scarves, but he was still shivering in the cold wind. He took his left hand out of his mittens, wiped the white frost on his eyelashes, and then looked at the time. 1:40 am. ? Just such an action, which lasted less than 5 seconds, already made Chang Haonan feel a knife-like sting on his exposed skin. The chief engineer next to him, Hai Yide, went to school in Bingcheng for nearly 10 years when he was young, but after all, despite his age, his body was a little unable to bear it. Fortunately, there is a local station in Hailar where aviation units are not permanently stationed. From there, some ground crews were temporarily supported, which allowed the entire testing process to run normally. In fact, originally, military aircraft testing was more suitable to be carried out at military airports, but the local area did not have the hardware conditions to maintain third-generation fighter jets, so this time there was an Il-76 carrying equipment following the J-11WS. The 2,600-meter runway of Dongshan Airport is obviously more suitable for serving such big guys. Mr. Chang, the temperature has now dropped to minus 41.5, which has reached the test standard! ?Just when Chang Haonan was wondering whether to let Hai Yide go inside the terminal to warm up, a man suddenly strode up to Chang Haonan and reported loudly. ??All comrades in the Air Force wore uniformly issued cold masks, so Chang Haonan recognized the person''s identity after looking at the other person''s military rank. The deputy director of the site who led the team to assist in the test, Wei Qiang. ?Chang Haonan took a deep breath, and a long wisp of white mist emerged from his mouth and nose. Even in the cold pole of China, waiting for a stable -40 does not happen every day. For this reason, they have been staying here for nearly a week. Then lets get started! "yes!" ??Wei Qiang stood at attention and raised his hand to salute Chang Haonan. The special test involves very few subjects, only a few related to engine cold start. As Chang Haonan''s order was issued, the vehicles and personnel who had been waiting for several days around the fighter plane suddenly became busy. In fact, if auxiliary facilities such as power supply, gas source, and oil are prepared in advance, the time spent in the test process can be further reduced. ??But after all, this is the first time that the test has been conducted under similar conditions in China, so every link and every detail must be tested thoroughly. ??If it is later confirmed that low temperature does not pose a risk to certain steps, then consider subtraction. I always feel like every time I do a test with you, I can see some new tricks that I havent seen before. ?Hayide next to him stamped his feet violently, his voice trembling a little as he spoke. ?Chang Haonan wanted to deny it at first, but when he thought about it carefully, it seemed that this was really the case. ?Since the first revision of the national military standard for the Turbojet 14, every project he has participated in has basically updated the relevant industry standards. So I had to come up with a wave of quotations from scriptures: There is no road in this world, but when there are more people walking on it, it becomes a road ?This is really what Lu Xun said... On the other side, although the severe cold caused some deformation of the movement, the ground crew and technicians still connected the pipelines of several auxiliary vehicles to the aircraft within the time specified in the outline. With a sharp buzzing sound, the taxi lights, navigation lights, wing lights and red anti-collision lights located on both sides of the aircraft''s landing gear and wings were illuminated at the same time. ??The voice of the pilot in the cockpit came over the radio: The equipment is powered on successfully and the engine self-checking system starts working! ??Although the fault fusion diagnosis system developed by Chang Haonan has not yet been put on an aircraft because the sensors required are too complex, the Turbofan 10 is an engine model with FADEC after all, so it is no problem to complete a usable status self-check. About half a minute later, the radio rang again: Self-test successful! Although passing the self-test does not 100% mean that the engine status is completely normal, it at least indicates that the relevant electronic control unit is in a usable state. And this is also prone to low temperature failure. ?Beside Chang Haonan, someone excitedly waved his fist in the air. Its just that because the clothes were too thick, I didnt show the usual excitement at all. Instead, it seems a bit funny... ?However, after being disturbed in this way, the atmosphere at the scene, which had just been so serious that it was almost frozen, became slightly more relaxed. ?Of course, the national certification test is definitely not a success just because the pilot says it is a success. Technicians are also using instruments to simultaneously monitor the status of the aircraft.????Formal accreditation standards should be more stringent and detailed. So, it was not until ten minutes later that they gave the same result. Passed successfully! Immediately afterwards, there is the second test session. Under the joint electric drive, the fuel oil system supplying the engine is also activated. At low temperatures, the flow characteristics of oil and the working conditions of pipelines, pumps and valves will be affected. Especially the two low-pressure pumps and the low-pressure shut-off valve set before the fuel heater are the top priority for low-temperature testing. ?Perhaps it was Chang Haonan''s illusion, but the time interval between pilots giving results was much longer this time. But in the end, everything was as he expected: Oil temperature, oil pressure, and fuel flow are normal, and the throttle status response is normal! ? Judging from the timing results, although the response is slower than normal, it is still within the range allowed by the standard ? As for the ground startup process, it doesnt need to be very sensitive, as long as it can faithfully execute the pilots intention. As time goes by, the preparations are completed one after another. Finally, the final moment has come. The darkest and coldest time of the day before the sun rises. The temperature has dropped to -43.2. God is doing his best. If the temperature suddenly rises midway, you may have to wait for another time window. ?Chang Haonan took a step forward and picked up the wireless phone. Engine start! Nearly everyone clenched their fists at this moment. ?As long as this step is completed, the turbofan 10 will officially complete the design finalization appraisal. ?In a place where everyone cannot see it, the fuel nozzle begins to inject atomized aviation kerosene into the combustion chamber. The fuel quickly and evenly fills the entire space and is fully mixed with the air sent into the combustion chamber through the compressor. ?At almost the same time, the electric spark generated by the electric lighter ignited it all. A crisp and short blast sounded. Following that, there was a slightly sharp roar... ?The entire process lasts only about a second or two, but under the combined effect of tension and low temperature, it seems as long as a century or two. Subsequently, the engine speed climbed sharply, then fluctuated slightly, and finally stabilized near the idle speed. After the engine enters the working state, the temperature of the entire system will also rise to the normal design level. For special alpine experiments, it is no longer a part that requires special attention. Slightly further away, the head of the appraisal team of the General Armament Department took off his headphones, stood up and looked at Chang Haonan and his group: The engine started successfully! At this moment, even the severe cold of minus 40 degrees Celsius could no longer stop the enthusiasm of the test participants. ??Although there are still some purely administrative processes to go before the strict "design finalization", at this point, the champagne can be opened. Some people even took off their cotton hats and threw them into the air in ecstasy. Successful, successful ?Hayide didn''t make any exaggerated movements. He just clenched his fists tightly, squatted down, and kept mumbling. Hearing his voice, Chang Haonan finally breathed a sigh of relief. A warm current surged from his body, and for a moment it even seemed to dispel the severe cold all over him. ?After a while, several deputy chief divisions, including Liu Yongquan and Yin Yongze, came closer from the surroundings and hugged or shook hands with Chang Haonan and Hai Yide respectively. Chang Haonan couldn''t even tell whether what was hanging around some people''s eyes was frost from breath or frozen tears... Mr. Chang, its done! Followed by members of the project team and the leader of the appraisal team, they also came over and held Chang Haonans hands tightly: The Turbofan 10 is Chinas first aircraft engine model that has independently completed the entire process from project establishment to finalization. I am honored to have the opportunity to personally participate in it. Its not time to relax yet. Chang Haonan is naturally happy in his heart, but as the anchor of the entire project team, he knows that he cannot be too impatient during such a time of joy: Design finalization is both the end of the previous stage and the beginning of a new stage. The subsequent tasks of ramping up production capacity and finalizing production will require close cooperation between us! ??The leader of the appraisal team was born in the Air Force, and he was already grinning from ear to ear: One item at a time, one at a time... Its an absolute miracle that we can get to this point in three and a half years..." Production finalization and design finalization are two tasks that sound similar but are completely different in practice. Some equipment may have been manufactured for a long time, and may even be almost retired, and the production and finalization process has not yet been completed. In the end, the entire life cycle was implemented as a "small batch trial production" to achieve large-scale equipment. So, he knew that this matter could not be rushed. ?Chang Haonan just nodded and did not reply. But in fact, he already has some new ideas on how to improve the production efficiency of air film holes. Next, we just need to wait until the equipment in the Torch Laboratory is in place to conduct verification... (End of this chapter) Chapter 875 Device ready Chapter 875 Equipment is ready After the test, Chang Haonan and his team did not leave Hailar immediately. The entire team has been in the freezing cold for several days. Although the temperature did not reach as low as -40 in the past few days, it was basically stable at around -35. The indoor temperature of local central heating is often 20 or even above 30. Staying up late, coupled with frequent alternating hot and cold cycles, is a great burden on the body. ??If you have to take a long-distance flight to transfer, young people will be fine, but older people will really not be able to bear it. ?So on the second day, except for the two aircrafts J-11WS and IL-76 that participated in the test, which returned to Shengjing overnight, the others rested in a local hotel for a whole day. By the way, we also enjoyed a meal of roasted whole lamb, a local specialty arranged by Deputy Station Manager Wei Qiang. After another day, everyone who had finished their rest said goodbye to the prairie. After that, its a relatively boring round of paperwork and administrative work. In addition to finalizing the design work, in 2000, the first full natural year after the establishment of the Aerospace Power Group, Chang Haonan, as the chief planner, inevitably had to conduct a comprehensive work summary. ?Also, although the research and development team of the Turbofan 10 project continues to be retained, after all, the most difficult and manpower-requiring research phase has ended. Those forces "borrowed" from brother units should also end this business trip that lasted several years and return to the original unit. Chang Haonan needs to evaluate the performance of quite a few of them. You should know that he is not only one of the project leaders of Turbofan 10, but also a member of the leadership team at the group level. ???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? So Chang Haonan did not dare to neglect. In short, by the time he completed the tasks at hand and returned to the capital, it was already late December. The year 2001 is coming. The turn of the century, the end of the year, plus the return of victory. A celebration banquet is definitely indispensable. In fact, when the plane was still hovering over the airport and waiting to land, Chang Haonan had already seen the banners, ribbons and flowers prepared on the tarmac. The banquet was held directly in the Great Hall. ?Of course, after the de-administrative reform of state-owned enterprises, this can only be regarded as normal business behavior within the aviation power group. So we are going through the business leasing process. ?Except for the chief accountant Wen Kangjian who was very busy due to the end of the year, all other group leaders including general manager Zhu Linyu showed up. They even invited Deputy Director Zhang Hongbiao, who had met Chang Haonan before. ?Specifications are full. And Chang Haonan is naturally the absolute protagonist. Actually, this is not the first time that the Aviation Power Group has held a celebration banquet. About half a year ago, when the turbojet 6D design was finalized, the group specially celebrated it. A draft was also issued at that time. ? Its just that the turbojet 6D is only intended for the Qiang 5D after all. A short, flat and fast model used for transition in order to prevent the outbreak of local conflicts with powerful enemies in the late 1990s. Later, due to the early entry into service of the JH-7A, it was eventually included in the technical reserve and did not actually achieve mass production. So, even though it was the first model to be finalized after the group was established, it still cannot be compared with the Turbofan 10. After all, the latter can be called the starting point of a new era of China Aviation Development. Comrade Haonan, I heard that in the past week, various factories have submitted more project applications than in the past 11 and a half months combined. ?Zhang Hongbiao held the wine glass and clinked glasses with Zhu Linyu and Chang Haonan respectively: Do you have any clues about this matter? ?Although this is a question, it obviously does not really ask what the result will be. The answer is obvious. Therefore, before Chang Haonan could answer, Zhu Linyu next to him had already spoken: "Turbofan 10 is like a big school for our aviation power group." In the past few years, everyone was studying in school and there wasnt much they could do. But now, we have finally graduated! Originally, this was just to coordinate with Zhang Hongbiao. ? Turning to the end, Zhu Linyu really felt a bit like a parent who raised his child until he graduated from college and saw his child get his first salary... After all, in terms of age, he is indeed a generation older than most people who came back from retirement. For some young people, it can even be two generations behind... Facing the adulation of the two singing and harmonizing, Chang Haonan is now able to embrace them all without changing his expression. You can even counter-general an army: "Director Zhang, Mr. Zhu, we have just completed the Triumph of the Turbofan 10, which is when the enthusiasm is at its highest. Since there are more projects, in terms of funding... we can''t let things slip. Otherwise, wouldn''t it be pouring cold water on our comrades? "?" The two looked at each other, and then raised their glasses in unison: Cheers, cheers Lets not talk about work today Just kidding, if there were only three or five projects, the two of them would just grit their teeth, stamp their feet and close their eyes, and that would be the nod. However, there have been as few as 20 applications submitted in recent days, and the base number is too large. Even if many of them are just improvements of old models, or new models that are not large in size, it is impossible to approve all of them. Have no choice but to look at him from left to right. After temporarily finishing the work on these scenes, Chang Haonan was finally able to free up time and prepare to test his new ideas. ?While he was dealing with the design and finalization of the Turbofan 10, the delegation sent to Europe to purchase experimental equipment also sent back good news one after another. Especially the two most important electron microscopes in materials science research were also put in place before the New Year. Outside the Fifth Ring Road, on the new site of Torch Laboratory. Chang Haonan took several members of the research team currently in Beijing to the analysis center located underground in the main building. Im going to Li Yabo, who has been working in the laboratory with others at the school headquarters for half a year, was shocked by the environment as soon as he entered the door: This is where were going to do experiments in the future? Is this...so big? We have more and more projects at hand, and the scale of the laboratory will definitely increase, so this is not only for now, but also for preparation for the future. ?Chang Haonan walked near an electron microscope, turned his head and explained: If nothing else, at least some of the equipment requires specialized operators. It would be too inefficient and error-prone if we just rely on ourselves. So we dont need to do these tests ourselves? ?Yao Mengna came from Du Yishans research group, and she thought she was well-informed, but todays scene... can only be evaluated as having never seen it before. Chang Haonan smiled: If you have extra energy, of course you can learn it. After all, there are many skills that are not overwhelming. But when we do research, the focus is still on new theories, or transforming theories into meaningful ideas, rather than just being an emotionless tester or experimenter, which is what undergraduates who have completed their studies can do. " ??When Chang Haonan said "undergraduate students who have completed their studies", Yao Mengna almost involuntarily raised her eyes and glanced at him. So teacher, what is the specific project we are going to do next? Li Yabo walked around the laboratory twice and then returned to Chang Haonan. Its the point we discovered before. Chang Haonan replied: Short pulse laser can process materials through some non-thermal effects. "It''s just that after checking some information, I found that compared to carbon-based composite materials, this method seems to be more suitable for...metals." (End of this chapter) Chapter 876 Use a Nature article as bait (4k) Chapter 876: Use a Nature article as bait (4k) "Metal?" ?Li Yabo was obviously stunned for a moment. His previous research, including the paper that is currently refining experimental data, focused on carbon fiber reinforced composite (CFRP) panels of different thicknesses, and Chang Haonan had never mentioned changing the research subjects before. Why did he suddenly do so? Was it changed to metal material soon? Looking at Li Yabo who looked confused, Chang Haonan smiled and explained: I initially planned to continue the original idea and study the processing of carbon-based composite materials. "But I have been thinking about it for a while recently and found that according to the energy transfer theory of electrons and lattice, the relationship between the laser and the material being processed will be affected by the electronic thermal conductivity, the lattice thermal conductivity, and the electro-acoustic coupling coefficient. Characteristic parameters are affected, but carbon fiber, even after multi-layering, is still too anisotropic, which is a huge trouble for controllable processing. " On the contrary, metals, including alloy materials, because the electrothermal characteristics have been relatively clearly studied, are more suitable as the entry point for our research, first easy and then difficult..." Actually, he had another reason that he didnt tell ?At present, even industry leaders such as the United States, Japan, and Germany are relatively conservative in the application of CFRP materials. Especially in the aerospace field, it is almost always the icing on the cake. . Huaxias research accumulation in the field of CFRP materials is even weaker, and its commercialization level is almost completely blank. Except for some low-grade experimental products, aviation-grade products are almost 100% dependent on imports. ? Relevant papers and patents are also in a relatively chaotic state. ?In this case, great efforts have been made to develop a new processing method for CFRP, at least in a short period of time. But metal is different. ? Among other things, the turbine and the air film holes on the inner wall of the combustion chamber of the turbofan 10 are still waiting for new processes to improve production efficiency. ?As for why Li Yabo didnt know about this matter Because Chang Haonan figured out this layer while waiting for the right temperature window in Hailar. There was no time to inform him. But my paper is basically finished ?Li Yabo felt a little at a loss: Should we also use metal materials as a research object and add some content? Thats not necessary. Send me the article for a look. If there are no big problems, submit it as soon as possible. Chang Haonan waved his hand: The main purpose of your paper is to meet the graduation requirements and to make the industry misjudge our specific research direction. Hearing this, Li Yabo and Yao Mengna looked puzzled at the same time. ?Chang Haonan has never told anyone the second reason before. ?But now. There is no need to hide anymore. This topic will cause a lot of noise in the future, and it will definitely not be hidden. Chang Haonan explained: Our countrys hard power in the laser field is still much weaker than that of developed countries. If others can judge our technical route in a short period of time, there is a high probability that they will be ahead of us and catch up. Previously, his research on laser processing was basically based on interest and technical reserves, so naturally it was mainly based on the strength of this laboratory and, at most, Beijing Hang University. But now that this topic has been linked to the finalization of the production of Turbofan 10, as the model chief engineer, he must mobilize all relevant resources at hand. However, the technical reserves in this area are relatively weak within the Aerospace Power Group, or the entire Science and Technology Commission system. It will definitely involve the Chinese Academy of Sciences and even other universities in the system. The implications are huge, even if it is as high as two bombs and one satellite, the news will definitely leak out. ?Furthermore, the act of confidentiality itself is also a kind of information - You kid must be doing something big if you are sneaking there! Instead of doing this, it is better to openly admit that we are studying laser processing. As long as some guidance is provided in more detailed places, it may be able to achieve better results. "But" Yao Mengna next to her raised her eyebrows: "That paper...isn''t it going to be published in nature?" ?Chaining trouble for competitors in the same industry through papers or patents is not a particularly rare thing in academic circles, especially in academic fields that are closely related to applications. As long as you dont engage in academic fraud, others cant say anything. But take a nature article to do this... is particularly rare. After all, if you just write a random paper, there is a high probability that you will not get into Nature at all. ??And if you invest too many resources in this direction that you know is wrong, you will injure the enemy by one thousand and lose yourself by eight hundred. ?However, Chang Haonan nodded: Its not easy to let go of children to trap wolves. Its because everyone has this kind of thinking inertia that its easier to take advantage of them. The longer they are misled and the deeper they are, the more beneficial it will be to our future development. Furthermore, this paper did not involve too much energy. The equipment was not in place during this period, and I could not conduct too in-depth experiments. As for the previous investment, I regarded it as training for Li Yabo..." ?Yao Mengna and Li Yabo were speechless at the same time. Practice your hands and write a piece of Nature. Who are you going to talk to for reasoning? In fact, for a normal research group, even for the Torch Laboratory, the investment from the school headquarters is not low. But whether it is low or not is all relative. ?At present, laser processing has climbed the big tree of the turbofan 10 project, so the previous expenditure of millions is naturally nothing. Even if it is just used as a bait, it can be regarded as a loss of blood. One month later. London, United Kingdom. Macmillan Publishing Company. For China, the 2001 Spring Festival holiday has just begun, and most people, including Chang Haonan, have gone to rest. But Europeans dont celebrate the Spring Festival, and the Christmas holidays are already over. Hence, the Nature editorial department has returned to its usual busy scene. ? As one of the two most prestigious journals in the field of natural sciences in the world, it receives a large number of submissions every day from various research institutions around the world. After all, there is almost no scientific researcher who has never dreamed of publishing in Nature. The number of papers in each issue of Nature, as well as the number of publications in the journal itself, are strictly limited. This is still the case even after entering the digital age. This is in sharp contrast to some journals that, in order to earn page fees, have crazy increased the number of journals after they have gone electronic and are no longer restricted by the length of paper editions. This greatly ensures the influence and authority of the journal. But for editors, it is not good news. Because with the opening of online submission channels, the number of submissions has increased by almost an order of magnitude in recent years. And among them, not even one in a thousand can break through many thresholds and finally be published... This is because the field of natural sciences has high requirements for experiments, which excludes most civil sciences. Otherwise, Im afraid it will be even lower So, for the staff of the editorial department, it is actually a bit boring... "well" Senior Editor Paul Nicholson threw the 20th paper he read today into the recycle bin, then sighed and got up to get himself a cup of black tea. "What''s wrong?" ?Fanny Black, who was sitting opposite, raised her head: Have you received any ridiculous requests for publication again? Nature is indeed a top journal. But no matter how top you are, you are still part of the academic circle. ?Although there are few cases where the editorial department is required to directly accept manuscripts due to external recruitment such as personal connections, financial interests or political pressure, it is by no means unheard of. ?This is what Blake is talking about. Thats not the case. ??Nicholson returned to his seat holding the cup: Its just that I have seen 10 papers in a row this morning claiming to have discovered a single-layer carbon atom material ??Blake didn''t answer, just showed a helpless smile. Similar experiences have happened to her before. ?If you want to publish in Nature, it is definitely impossible without some groundbreaking content. But some authors put too much groundbreaking work in the abstract instead of the conclusion... Looking at the abstract, we can see Nobel Prize-level achievements per capita. Look at the content again Even if they, the editors, are not professional researchers, they can see that it is full of loopholes. While speaking, Blake also clicked on a submission classified as "carbon-based materials", and then his eyes quickly scanned the abstract. HereI also have an article here. Although I did not discover a single layer of carbon atoms, I also said that I have solved the problem of laser thermal effects being unpredictable during the processing of carbon-based composite materials However, when she said this, her voice stopped abruptly. ?Nicholson raised his head and cast a questioning look. "etc" ? Blake raised his hand and pushed back his blond hair that was originally hanging down. This is her habitual action when thinking. The data in this articleseems like it can really be fitted? Ah? Nixon, who was about to open the next paper, immediately put down his teacup and walked around behind Blake. Then he was stunned. ??The fit between this curve and the data is too good to be true. Its not adjusted by data, right? Nixon frowned immediately. Theoretically, editors and even reviewers are not responsible for the authenticity of the data in the paper. But if you encounter something that is particularly outrageous, you should still pay attention to it. Lets first take a look at who the author is? He proposed again: If there have been results in this field before, it should still be credible. Blake followed the instructions and clicked on the personal information column of the first author. In fact, Natures review results are also highly affected by the authors past scientific research results. In other words, even if the content of the paper remains completely unchanged and a well-known professor in the industry submits it as the corresponding author, the difficulty of submitting the manuscript will be greatly reduced. ?This is not entirely due to academic hegemony, but in most cases, natural science research itself is a step-by-step process. ?There was no movement before, but now we can make a big one. The possibility is not to say impossible, at least very small. YaboLi is a complete newcomer, completely blank. ? Blake shook his head, and then clicked on the corresponding author. She was stunned by the content loaded on the screen: "Um?" ??Nixon leaned in front of the screen: HaonanChang...has published some pretty good papers, but they dont seem to have anything to do with materials science...dont you just come here to bully me? "no" ? Blake raised his hand to stop Nixon from continuing: Is this person the one who was very popular last year... one of the two people who solved the Poincar conjecture? "like" ???Nixon''s tone also became serious: Ill check it out ?He quickly returned to his seat and started typing on the keyboard. After a few minutes, the result was obtained: Last years Chang Haonan was a professor at a Chinese university called Beijing Aeronautics and Astronautics University. His contact email address was...so is it really him? ?Blake nodded nervously. ?However, Nixon relaxed: Then just leave it to the reviewers. For an author of this level, we cant decide whether he can pass the manuscript or not. Thats the problem. ? Blake showed a troubled expression: "This paper... is said to be about materials science, but it is about 1/3 of the length, and at least half of the innovation lies in elaborating basic physical laws and performing mathematical calculations. I can''t think of anyone to review it for a while..." Professors of materials science most likely do not understand mathematics and theoretical physics, professors of physics may not understand mathematics, and professors of mathematics do not understand the actual situation of materials science I always feel that this paper is awkward no matter which field it is classified into. ?Chang Haonan added a lot of computational materials science content to this paper. But computational materials science is not yet a prominent subject here, so even if Black was an editor for Nature, he felt a little numb for a while. To put it bluntly, it seems more suitable to submit it to PhysicalReview She complained casually: ?PhysicalReview series founded by Cornell University, although its public reputation is not as good as Nature and Science, it is definitely an extremely important journal. In the past half century, 60% of Nobel Prize-winning papers in physics were published on it. But if you really dare to reject the manuscript, the editor will probably kill someone..." ???Nixon said half-jokingly: This kind of truly groundbreaking paper can only be published in our journal Nature. ? Blake ignored Nixon''s joke about using the names of his own and friend''s business journals, and just started looking through the list. Yes! ?After a full hour, she suddenly raised her head, and her sharp voice startled Nixon, who had almost forgotten about it. All the black tea was spilled. Henry Jeske is a materials physicist, but his research field is more theoretical, so he doesnt usually interact with us much. He published an article of a similar style in Physical Review about two years ago. Even so The cup of tea just happened to be spilled in a very bad place, so Blake quickly grabbed a piece of paper and started to wipe his pants: How many more reviewers do you need? ??But Blake no longer cared about this and started writing the email directly: It doesnt matter, let Professor Jeske recommend it to us. The content of this paper should be of interest to him... (End of this chapter) Chapter 877 Key technology: ultra-short laser processing Chapter 877 Key Technology: Ultrashort Laser Processing Time passes day by day. ?After returning to work during the Spring Festival, before most peoples holiday syndrome was completely gone, a shocking news suddenly came out in the field of composite materials A research team from China published a paper in the Nature journal. Based on the Boltzmann transport equation and lattice dynamics theory, they proposed an instantaneous laser-material interaction mechanism that is different from the traditional two-temperature model. The state thermoelastic model almost completely fits the processing of large-thickness CFRP plates by continuous laser sources. Even more coincidentally, the corresponding author of this paper is Chang Haonan, who participated in proving the Poincar conjecture last year, but then almost disappeared. ? No one has heard of the first author in the past, but I think he should be a student in Chang Haonans research group. Obviously, he has not been living in seclusion for more than half a year. Instead, he focused his energy on guiding students. It is also cross-border guidance. also directed a Nature Chun Chun is no longer a human being. Therefore, whether it is for research purposes, out of curiosity, or simply to join in the fun of "a Chinese scholar published Nature". In short, the popularity of this article was frighteningly high. After the paper was officially accepted, Chang Haonan has been paying attention to research in related fields. Especially arXiv. As a preprint website, most of the papers that appear on it are actually of little value. However, the amount of content published on it within a period of time is a small window that can make a big difference. In the next week, the number of new entries related to composite materials processing surged by nearly 15%... It can only be said that materials researchers should never doubt their sense of pursuit of hot topics. This is exactly what Chang Haonan wants to see. Amidst the high degree of enthusiasm, some research groups, even if their own research direction is ultra-short pulse laser, will most likely allocate some efforts to explore the direction of traditional continuous laser processing. Or at least repeat the experiments in his paper. And if a Nature article is not enough... He also has a follow-up combination of punches. ?So, as soon as the Lantern Festival was over, Chang Haonan went directly to Ding Gaoheng and applied to organize a symposium in the field of optoelectronics and materials physics in the name of the Science and Technology Committee. The number of participants does not have to be too large, but it must be reliable enough. In fact, when Ding Gaoheng heard the three words "symposium", he basically agreed in his heart - ?The last time Chang Haonan made a similar request was about three years ago. ?That China Aerospace Engine Industry Conference. As for the result... Everyone has seen it. China''s aviation industry has been directly introduced into a new era. ??Although Chang Haonan said that the scale of this forum will definitely be much smaller than the last one, Ding Gaoheng is not greedy. Even if he could achieve one-tenth of the effect, he would be very satisfied. ?However, before finally nodding, Ding Gaoheng still confirmed it specifically: This symposium...what are you ultimately trying to achieve? After all, there is a difference between consent and agreement. Chang Haonans answer is straightforward: I discovered that ultra-short pulse laser can be used to perform precise cold processing on any electronically active material, and this is probably the most critical technology in the production and finalization process of the turbofan 10 engine. !! Ding Gaohengs whole body tensed up instantly Are there any inheritance relationships among these studies co-authored by Chang Haonan? ?Then theres nothing more to say. Of course, I fully support it. Just tell me directly, which units are you going to include? Ding Gaoheng said as he took out a note from the side: We can give you 100% support for resources within the Science and Technology Commission system. As for resources outside the Science and Technology Commission, we will also try our best to fight for them! Since the other party asked this question, Chang Haonan was not polite and immediately took out the information he had prepared and handed it to the other party: First of all, its the Haojing Institute of Optics and Mechanics. I checked some information and found that they are the only one in the country that can immediately come up with a picosecond-level pulse laser that meets my power requirements. There is also the Institute of Applied Optics of Ordnance Industry Group, which has a relatively deep accumulation in the field of overall research and development of optoelectronic systems. There is an Atomic Energy Science Research Institute under the Nuclear Industry Group, and the isotope research and isotope product production capabilities there should be the highest level in the country..." ?Chang Haonan listed the names of nearly ten units in succession. In addition, if there are other researchers who specialize in these fields, they can join me as long as the background check is OK. Ding Gaoheng looked at the list in front of him and knew that this should be another big project. ?The number of people is not large, but the number of institutions involved is no less than last time. ??And a small half of them are in the Academy of Sciences system. So its quite tiring. ?However, considering the bright future once successful... Ding Gaoheng nodded without hesitation. ? ? The Commission of Science, Technology and Industry for National Defense is, after all, a military-industrial unit, and its efficiency is still lacking. ??Although Ding Gaoheng did not dare to confirm at the time, in fact, even before the first month of the year, the units requested by Chang Haonan were sending people to the capital one after another. Especially the Haojing Institute of Optics and Mechanics, the first one he named and the most important among them, directly dispatched a team of 10 people led by Academician Hou Xun. He even stated that Academician Hous research team can pay the travel allowance by itself. Although it doesnt cost much, it still has the purpose of supporting the work. Considering that the scale of this symposium is not large, it will not be held outside the capital like the previous aviation industry conference. Instead, the meeting location was directly arranged in the large conference room on the top floor of the Aerospace Power Group. The cards and the level of confidentiality are both maximized. The meeting was chaired by Chang Haonan himself. Now he no longer needs to introduce himself in detail. So, after a very brief opening remarks, the symposium got down to business. ??Although Ding Gaoheng did not publicly explain the details of the symposium convened by Chang Haonan in his previous report, everyone basically had a guess thanks to the Nature article. Its just The direction of the guess was somewhat misled by Chang Haonan. For example, Hou Xun. After the symposium officially started, as the only academician among the crowd, he naturally got the first opportunity to speak. Professor Chang, are you gathering comrades together this time to initiate a continuous laser processing project in the name of the Aerospace Power Group? ?Hou Xuns voice was filled with obvious concern ?Of course it is not a study of Chang Haonan, but a study of Chang Haonan: In fact, Academician Hous main research direction in the past ten years has been ultrashort lasers, and he even advocated the establishment of a National Key Laboratory of Transient Optics and Photonic Technology. ??The femtosecond laser that Chang Haonan is obsessed with is the product of this laboratory. However, at the specific process level, there is still a long way to go before commercialization. This is also a common problem faced by ultra-short laser processing around the world. Therefore, when he saw the paper Chang Haonan published in Nature half a month ago, his first reaction was... panic. Even though he has never met or worked with Chang Haonan in the past, Hou Xun has heard his name many times. At the beginning, regarding those miraculous rumors, he generally had an attitude of not believing them. But the time when Poincars conjecture was proved last year was really too influential. I have no choice but to believe it. After that, Academician Hou gradually accepted the many deeds of Chang Haonan. And such a magical person, he suddenly published a paper one day. Its still Nature. The content is completely opposite to the direction I am studying. And it just so happens that there has been no significant breakthrough in my research for a long time... Who is left alone? It is precisely for this reason that when he heard that Chang Haonan was going to hold a symposium and possibly engage in projects related to laser processing, Academician Hou said he wanted to go without even thinking about it. Even if you have to pay for it yourself, you have to go. Have to argue with Chang Haonan. Even if you lose, you must lose clearly. To this end, he had prepared sufficient research materials before the meeting, and was ready to explain to the other party that the potential of pulse lasers was at least not weaker than continuous lasers. ?Moreover, before asking the question just now, he was even mentally prepared for all the information to be turned into waste paper. but ?Chang Haonans answer was completely beyond his expectation: Academician Hou, we are indeed preparing to study related topics of laser drilling and laser cutting, and we are not doing it in a small way, but are finally preparing to achieve industrial production. However, it can now be made clear to the comrades participating in the meeting that the specific technical solution is not a continuous laser source, but a picosecond or even femtosecond pulse laser source. As soon as Chang Haonan finished speaking, Academician Hou already said what he had prepared: Professor Chang, according to my research, pulse laser "etc" It wasnt until halfway through the first sentence that the latter realized something was wrong... Professor Chang, you just said...that you are also planning to take the pulse laser source route? Chang Haonan nodded: Thats right. Academician Hou, who was fully prepared mentally, only felt his scalp numb: But the paper you published at the beginning of the month was not...the mechanism of continuous laser..." Hearing this, Chang Haonan showed a scheming smile: That...is used to mislead competitors. In an instant, the air in the entire venue almost froze. Everyones reaction was almost the same In order to mislead competitors, you published a Nature article? Our main research directions have not been published in Nature? After a moment of silence, Chang Haonan continued to speak: "Judging from your reaction just now, Academician Hou, the effect of this misdirection... seems to be pretty good." After finishing speaking, he raised his arm and lightly tapped the space bar of the laptop in front of him. The theme of todays meeting was projected on the screen "Research on Ultrashort Pulse Laser Processing Technology for Special-shaped Air Film Holes in Aeroengines". (End of this chapter) Chapter 878 Use light as a sword Chapter 878: Using light as a sword Looking at the title on the curtain, everyone present highlighted the joy of one family and the sorrow of another. ??Whether it is a pulse laser or a continuous laser, it can be said that Chang Haonan has put it all together. ?Especially Academician Hou, it felt like he punched the air and then dodged his waist. Fortunately, although the process was a bit tortuous, the results are still relatively optimistic. It doesnt matter if your mental preparation is in vain. Physical preparation is not in vain, it is always a good thing. ?Hou Xun took a few deep breaths, trying to calm down. The face that had just flushed gradually returned to normal. ?Of course, there are also some people whose faces are not so good-looking. ?They were in the opposite situation to Hou Xun. They originally came to the capital with great expectations, but in the end they were disappointed. But I couldnt say anything ?This project is obviously closely related to the military industry, and it is normal to keep it secret before it officially starts. ?Furthermore, they have actually never said what specific technical route they want to pursue. Its just that the Nature paper that Chang Haonan published before was indeed very influential, so the person who was sent here followed academic convention and guessed that he would continue to work on continuous lasers along the lines of the paper. It is a case of expecting something without authorization and breaking the defense without authorization. ?However, breaking the defense is still breaking the defense. Speaking of how violent the reaction was to this... ?That''s not the case. First of all, Chang Haonan, who is in charge of the project, and Academician Hou Xun, who has the most influence on the scene, have reached an agreement. No matter what the reasons are, others do not have the confidence to oppose these two people at the same time. Furthermore, as Chang Haonan said before, Chinas accumulation in laser processing is quite weak. ?Except for the Haojing Institute of Optics and Mechanics, the research in other units has basically stayed at a superficial level, and the time, energy and money invested are limited. The sunk costs are not high. So at best, I feel a little pity. There will be no frustration like Hou Xun had before when the work that I have been working on for half my life has been rejected in principle. In short, after a small interlude, the meeting quickly got back on track. A researcher from the Institute of Applied Optics hesitated for a moment and then raised his hand: Professor Chang, I dont mean anything elsebut the data from the paper you published in Nature ?The other party was a little hesitant. Obviously, this issue is somewhat sensitive and it is difficult to ask straightforwardly. If you are not careful, you may be considered to be provoking trouble. ?However, it is not difficult for Chang Haonan to understand the meaning. All data, calculation processes, and conclusions are, of course, real. He answered bluntly: When it comes to academic ethics issues, our research team is quite strict. ?While speaking, he switched to another PPT page. Shown above are several key charts in the paper. At this point, Chang Haonan continued: In fact, according to our calculations, it is indeed possible to use continuous lasers to perform multi-degree-of-freedom scanning drilling with variable path, beam quality and power to avoid oxidation, stress damage and contour roughness caused by traditional thermal processing. Bad question. "It''s just that the hardware requirements for lasers are too high. We... let alone us, even developed countries cannot come up with equipment that meets the requirements in a short time. Ultra-short pulse lasers, especially when the duration is Picosecond or even femtosecond lasers below the lattice relaxation time cannot activate thermal effects in principle, so they are completely cold processing and are more suitable as a key research direction for us as a developing country. " When hearing this, the eyes of most people in the venue gradually changed when they looked at Chang Haonan You people who are engaged in military industry have really dirty hearts... Leave a ray of light for others in the wrong direction. But this glimmer of hope is still real. It seems that you can get it if you work hard. ?Just tell me whether you want to follow or not!?????As long as there is a little bit of instability in the heart, it will definitely turn into a frown... Immediately afterwards, Chang Haonan showed several pictures about the calculation process: "The mechanism of thermal effect machining is relatively clear and is not the focus of our research, so the calculation at the theoretical level is not difficult. I have also demonstrated it in the paper, so I will only give a brief explanation today. The focus is to show you a method The idea of ??using mathematical methods to guide materials research...I call it computational materials science! ?The paper published by Chang Haonan was not long, but he judged that most researchers in the field of materials science would most likely not understand at least one-third of the content. That is the part involving mathematical principles. This happens to be the core technology that he will use to guide the next project. So, Chang Haonan first spent about twenty minutes talking about his results like a group meeting. The result... In fact, I still received a blank look. ?But that doesnt matter. The calculation process itself will be completed by Chang Haonan himself. ?The purpose of this round of introductions is to help others build confidence in computational materials science. Otherwise, if you work with a skeptical attitude, problems may easily arise. Under the continuous bombardment of theory and reality, the thoughts at the symposium were gradually unified. After Chang Haonan finished the first part of the introduction, Academician Hou spoke first: Professor Chang, can you tell us specifically what aspects of work we need to be responsible for next? "certainly." ?Chang Haonan picked up the cup, took a sip of water, and then continued: "Comrades who have been studying ultrashort pulse lasers should be aware that so far, regarding the interaction mechanism between laser and materials, the industry generally still uses the two-temperature equation proposed by Soviet scientists in 1974, that is, The temperatures of the electronic system and the lattice system are represented by the Fourier heat conduction equation, and the two equations are related by the energy transfer term. " This equation is simple enough in form, but it can only describe the energy conversion and temperature changes between electrons and crystal lattice, but cannot explain the statistical laws of microscopic particle motion, nor can it simulate the state of the material after laser processing. " Even though many scholars have subsequently made parameter corrections based on this model, the shortcomings of the two-temperature model are theoretical and cannot be overcome by simply adding fixed terms. If you want to use the dual-temperature model to guide industrial production, you need to make different corrections for each processing link, and the correction method in turn requires a lot of experiments to obtain, so there is no guidance..." Not everyone can understand this part of Chang Haonans mechanism introduction, but Academician Hou, who is sitting in the first place on his left, nodded frequently. In his past research, he was really troubled by the description error of the two-temperature model. So, we need a new model Chang Haonan did not switch to PPT this time. Instead, he got up and went to a blackboard placed in the corner of the conference room, and wrote a few big words on it - Ablation threshold model. This is an idea I put forward based on the principles of molecular dynamics. Of course, it is still in a relatively preliminary state. Chang Haonan wrote another character below. ??. The ablation threshold, I define, is the laser energy flux that is sufficient to destabilize the crystal lattice, cause irreversible damage to the system, and remove at least one layer of material. This threshold does not differentiate between mechanisms of action and can be used to describe both cold ablation and thermal ablation. In the process of molecular dynamics calculations, I found that for pulse waves of picosecond or shorter time, the deviation of the ablation threshold is very small, causing ablation to transform from a statistical property to a relatively deterministic behavior. In this way, we eliminate the uncertainty of the processing parameters and only need to consider the material itself and of course the characteristics of the laser source. ? Even those who dont understand the previous mechanism part will see their eyes light up at this time. If we only need to consider materials and laser sources, wouldnt the complexity of this system... be similar to traditional machining? Perhaps due to excitement, Academician Hous voice was a little distorted. Exactly so. ?Chang Haonan turned around and returned to the conference table, but did not sit back in his seat: Traditional machining requires knowledge of the hardness, stiffness, thermal expansion coefficient, shear strength, etc., of materials and tools in advance, which we collectively refer to as mechanical properties. "But ultra-short laser processing is a different set of logic. What we need to do is to find these attributes that correspond to mechanical properties and can determine the optical processing effect, and then combine them with the ablation model, and finally achieve the same results as mechanical means. , controllable processing of any known material! (End of this chapter) Chapter 879 wrong direction Chapter 879 Wrong direction The symposium is just to gather the project team and clarify the direction of the next task. Hence it did not last long. The remaining task is research and development. ?However, there is still a lot of work that needs to be done to transform the theory, which is still imperfect at present, into practice. Its not the same level of workload as writing a thesis at all. This is why Chang Haonan must send people from so many units to support ? High-power picosecond lasers are readily available from Haojing Optical Machinery, but if the entire laser processing equipment is compared to a machine tool, then the laser is only equivalent to the tool head on the machine tool. ??A series of auxiliary equipment are also needed to control the accurate and efficient operation of this "light knife". There are specialties in the art industry, and many of the contents involved are things that Chang Haonan has never been exposed to. So, similar to when designing Turbofan 10, after the symposium, the entire project team was divided into three different directions. The first direction is led by Chang Haonan himself, who is responsible for further improving the ablation threshold model. Even though mechanical processing has been developed as a formal discipline, it has been developed for at least two centuries. During this process, a vast amount of production data has been accumulated, so empiricism can play a very huge role in it. However, laser processing obviously cannot wait for two centuries. Not even twenty years. So, it is impossible to have enough experience for reference. To put it into production in a short time, it is necessary to be able to reverse, at least partially, the entire process flow when the materials to be processed and the expected processing results are known. The second direction is led by Academician Hou Xun, who is responsible for the research and development of the entire laser processing equipment hardware level, as well as providing necessary experimental data support for the first direction. The Haojing Institute of Optics and Mechanics has been working on this field for many years and has accumulated a certain amount of technology. ?However, Chang Haonan put forward an additional requirement, that is, not only the laser source itself, but also the parts related to the processing characteristics of the machine tool must be made in China. On the other hand, for motors and lens groups, if the progress is indeed too late, the requirements can be relaxed appropriately. ?Judging from the current international situation, China does not need to worry about being stuck in the short term. The main thing is to cooperate with the bait thrown out before. Otherwise, he would have been so fierce in his operations, but when others checked, they found that you had bought a bunch of local volume holographic gratings that matched the pulse laser. ?That would be pure fun... As for the third direction, there is no leader for the time being. Because this is not strictly speaking "a" direction. Rather, it is responsible for ensuring the various materials needed in the manufacturing and use of equipment, ranging from radioactive isotopes to cable and fiber optic lubricants. ??Their progress will be reported to Lan Xinzhi of the Equipment Industry Department of the Science and Technology Commission, who will then coordinate with Chang Haonan... ??As instructions and documents were signed out from Chang Haonan''s pen, the newly formed R&D team gradually began to operate. ??Although these members from different systems are not yet able to work together as seamlessly as the Turbofan 10 project team, it is not a bad thing to start running in early. Race against time! At the same time, Chang Haonan was preparing to launch the project. UK, southern England, Oxfordshire. Rutherford Appleton Laboratory. Professor Martin Bock is sitting around a semicircular conference table with several corporate technical representatives from Oxford Laser Company and Edinburgh Instrument Company. At this time, everyones eyes were focused on a curtain on the wall of the conference room. What is displayed on the curtain is the paper Chang Haonan published not long ago, as well as some related experimental data. Professor Bocks student and assistant Emily Toulson stood behind the podium not far away, controlling the speed of the PPT playback, and occasionally making necessary additions to the specific experimental situations. ? James Cambert from Edinburgh Instruments spoke first: "Matt, we have received reports from several research institutes and laboratories, all stating that they can reproduce the experimental results in Professor Chang''s paper, but because the calculation process involved is more complicated, it is difficult to reproduce the same results. The method still faces relatively big difficulties when it is popularized. So, a common concern in the industry is whether the transient thermoelasticity model proposed by Professor Chang is universal, or can it only achieve good fitting within a limited range? In fact, once Chang Haonans article was published, it aroused not only a huge amount of attention, but also a series of questions. ?Although the voices of doubt are not large, they all come from people in the industry who study related fields. Because the model proposed by Chang Haonan is indeed a bit too complicated for most engineering scholars who lack theoretical mathematical foundation. At least not to the extent that you can get the result simply by adding parameters. So that for the time being, everyone can only use the dozens of data mentioned in Chang Haonans paper to conduct repeated experiments Other data cannot even be calculated, let alone verified. Of course people who eat melons can be indifferent, but for companies that hope to commercialize laser processing technology, the risks involved cannot be ignored. So, two companies that already had a cooperative relationship approached Professor Bock and asked him to verify the authenticity of the paper. ??Of course not referring to data. ??But a model. Its normal that most people cant understand. Martin Bock showed a confident expression on his face: The calculation process in that paper is not very easy to understand even for ordinary scholars with a background in mathematics. However, thanks to the assistance of supercomputers, I have deciphered the underlying rules..." He said, gesturing to the side. Following that, Toulson switched the PPT on the screen to the next page. The above is half of the formula calculation, and an image with dense curves and data points: "Although we still don''t know the specific derivation process of Professor Chang, we can be sure that within the energy, wavelength and time scale we usually study, the transient thermoelastic model he proposed can basically fit the experimental data. The largest error is only about 5%. In other words, it is really possible to use mathematical means to calculate the thermal processing of molecules on the surface of materials, and the accuracy can meet the needs of industrial production? ??Despite getting a positive answer from Professor Bock, Cambert still had an expression of disbelief on his face. ?Thomas Linton, the representative of the Oxford Laser Company who had been sitting next to him, did not speak, but he also frowned slightly. As a high-tech enterprise, they have naturally heard of molecular dynamics simulation, which has been very popular in the past two years, and have even invested in many research groups doing related research. But this kind of investment is a flood-watering attempt, which does not mean that they are really optimistic about this field. In fact, most companies believe that it is unlikely to accurately apply numerical calculation methods to the field of microscopic particles, at least within 8-10 years. On the one hand, it is due to the insufficient level of computer hardware, and on the other hand, it is also the limitation of mathematical theory. But the paper before them and Professor Bock''s conclusion clearly slapped them in the face. Perhaps seeing the shock of the two business representatives, Bock paused for a while and then explained: I checked specifically and found that in addition to being the co-prover of the Poincar conjecture, Professor Chang Haonan is also the developer of TORC Multiphysics, a very influential numerical calculation software in recent years. So, its not surprising that he can perform at a level far beyond ordinary people in this interdisciplinary field. "But" ?Linton hesitated for a moment, but continued: With such a guiding model, why not start commercializing it right away? ?As a corporate executive, his first concern is money. Because theory is theory, it is not easy to commercialize it. Bock replied: "To truly achieve perfect continuous laser processing, the requirements for processing equipment and control systems are very demanding. The laser source needs to have five degrees of spatial freedom. In addition to laser power and beam quality, at least 7-8 parameters need to be controlled simultaneously. indivual." This is an extremely complex system even in the field of mechanical processing, not to mention maintaining the stability of the optical path itself while controlling it. The difficulty is almost equivalent to using photolithography to produce semiconductors. This analogy finally gave Linton and Campbell a somewhat intuitive concept. I speculate that if the processing object is changed from anisotropic carbon fiber composite to metal, the situation may improve a little, but not too much. At this point, he once again motioned for Tulson to turn the page: This time it is a somewhat dazzling table. Look, you two, the red data in this table was written in that paper for fitting, while the blue data was fitted after I generalized the calculations. The former wanted to put it off, but seeing that the two representatives seemed uninterested, he had to give up the idea and explained directly: "It can be seen that the parameters used for fitting in the paper are not very complex, and there is almost no rule in selecting points. This shows that even in the laboratory, they do not have the ability to control the laser source for high-complexity precision processing. capabilities, let alone the industrialization stage. This explanation is considered reasonable and well-founded. "So...since the Chinese can''t do it, can we do it at our level..." Professor Bock had been waiting for this question for a long time, so he only heard half of it before expressing his position: It can be done in the laboratory. ?He pointed at the curtain in front of him: "The complexity of the blue data in the table is close to the needs of actual industrial production, but the success rate is not yet stable. However, we are currently trying to use technology in the semiconductor processing field to improve the equipment. If we have the funds and manpower If enough, we should be able to see some results soon. Looking at the confident Professor Bock, Linton and Campbell looked at each other, and they both read the meaning of "you can give it a try" from each other''s eyes. So, Professor Bock. The Oxford Laser Company dominated the partnership, so Thomas Linton stood up and came to Bock as the final word: We will provide you with maximum support within the scope of our authority and wish you success as soon as possible! Martin Bock smiled and stood up to shake Lintons hand: It should be, I wish us success as soon as possible... (End of this chapter) Chapter 880 Different luck 9 Chapter 880 Different Luck 9 ?With both parties unaware of each other, a research and development competition quietly kicked off. Its just that the path one of them took was deliberately guided. Strictly speaking, it cannot be called a "mistake" - after all, if you follow that route, you will definitely achieve the same result in the end. Its just that the resources and time consumed in the process are another matter. And what began to revolve around Chang Haonan was even more than that... ?One afternoon in late February, Liang Shaoxiu strode into the headquarters building of the Aviation Industry Corporation of China, covered in dust. ?One day ago, he had just returned to Nanzheng from a stage test flight of the Air Police 200 early warning aircraft when he received a call from the capital. The phone call came from the Development Planning Department of the Aviation Industry Corporation of China, requesting him to go to Beijing as quickly as possible to discuss important model planning matters. Therefore, he only had time to catch up on his sleep at home before getting on the plane to the capital again. ?After entering the hall, Liang Shaoxiu took off his half-dry and half-wet scarf, shook it lightly, then asked for two pieces of paper from the guard room, and wiped off the water droplets on the surface of the briefcase. The weather in late winter is so annoying. What falls down is still snow, but when it falls on you it becomes water. After tidying up a bit, he spent a few minutes following the signs in the corridor to find the elevator. ??Nanzheng 182 Factory was still a marginal unit only two or three years ago. Liang Shaoxiu was only the acting chief engineer at that time, so he didn''t come to the headquarters in the capital much. It can be said that if General Manager Chang had not ordered troops, he might still be dealing with the ice accumulation problem of the Y-8 aircraft in Nanzheng at this time... Soon, Liang Shaoxiu appeared at the door of the general manager''s office, raised his hand and knocked lightly on the door. "Come in." ??A calm voice that he was not familiar with came from inside. ?However, if Chang Haonan were here, he should feel very familiar ? A month ago, at the beginning of 2001, Liang Zhuoping, the former general manager of Aviation Industry Group, was transferred to other positions due to illness. In fact, he was relegated to the second line. The successor is Liu Gaozhuo, who was transferred from Factory 112. ??That is, the former person in charge of Project No. 11 who was chatting and laughing with Chang Haonan a few months ago. Originally, Liu Gaozhuo had to wait until at least next month to deliver a trial production batch of 6 J-11Bs to the Air Force before making any job transfers. However, the plan could not keep up with the changes, and Liang Zhuoping''s health problems could not delay the work, so he had to be transferred in advance. Fortunately, the research and development of the J-11B has basically been completed, and it is not considered a temporary change of generals. Mr. Liu, you... Before Liang Shaoxiu could finish saying hello, out of the corner of his eye, he caught sight of another figure sitting on the sofa next to the office: Ding...Director Ding? Ding Gaoheng''s appearance was completely unexpected, making him suddenly feel a little nervous. ?? When the senior leader went to Nanzheng to visit Air Police 200, Liang Shaoxiu and Ding Gaoheng met. ?But that time, another chief engineer Wang Xiaomo, who had a higher status and more experience, was present, and the Air Police 200 was a project he had handled himself, so he felt confident after all. So the impact I felt in my heart was not as good as this sudden attack. Comrade Shaoxiu, sit down. Ding Gaoheng nodded towards Liang Shaoxiu and raised his hand to motion to the single sofa next to him. The latter immediately sat down obediently: Director Ding, Mr. Liu, I dont know why the organization called me here this time ?The previous notification he received was about "important model planning," but on this occasion, it''s better not to make any assumptions. ?However, the other partys first question was completely beyond Liang Shaoxius expectation: Comrade Shaoxiu, you should have worked with Chang Haonan from the Aviation Power Group before? In an instant, Liang Shaoxiu''s brain was running rapidly. ??Both Ding Gaoheng and Liu Gaozhuo would know this kind of thing just by looking through the files. ?Now I specifically want to find him, the client, to confirm in person. There are only two possibilities - First, something happened to Mr. Chang. ?But looking at the expressions of the two people opposite, they dont look alike. ?Then there is only the second option: there are any projects related to Mr. Chang that I need to do myself. For him, this is naturally a dream. Collaborating with Chang Haonan, apart from other things, will definitely bring you full coverage. ?So, Liang Shaoxiu finally breathed a sigh of relief: Thats right, from the end of 1996 to the beginning of 1997, Mr. Chang was still involved in the 83rd Project in the 601 Institute. He provided temporary support to our 182 Factory and helped us solve the icing problem on the wings of the Y-8 aircraft that had been bothering us for a long time. Furthermore, in the second half of 1997, when I first came into contact with the Air Police 200 project, the overall plan of the entire T-shaped antenna layout with double ventral fins for the early warning aircraft was predetermined by Mr. Chang. Yeah. Ding Gaoheng nodded, with a satisfied expression on his face that had just straightened up, and then turned to look at Liu Gaozhuo behind the desk: Please briefly introduce the situation. After hearing this, the latter took out a file bag from under his desk that was obviously prepared long ago. Considering the mission requirements of transport aviation in the new era, superiors decided to plan a medium-sized tactical transport aircraft to replace the Y-8, tentatively named the Y-9. Liu Gaozhuo said as he put the portfolio on his desk. ?Liang Shaoxiu quickly took it and took it apart as quickly as possible. Inside is a "New Tactical Transport Aircraft Demand Demonstration Report". Until then, Liu Gaozhuo continued: "The current preliminary indicators are that the maximum take-off weight shall not exceed 90 tons, the maximum payload shall not be less than 20 tons, the range at half load shall not be less than 5500km, and the full load range shall not be less than 3500km. The cargo hold size, of course, here Mainly refers to the cross-sectional area, which is no less than 85% of the IL-76, and it must be reserved for adding fuel tanks in the cargo hold during design to temporarily serve as hardware facilities for aerial tankers..." Listening to the performance requirements from his leader, Liang Shaoxiu felt that it was as big as one head or three. Other requirements are easy to say, but the range under a load of 20 tons is not less than 3500km... This is already about twice that of the Y8 III platform. It should also be considered that as the cross-sectional area of ??the aircraft body increases, the flight resistance itself will increase. Considering that there are currently no available replacement models of the turboprop 6C, it means that the new product cannot be a similar model of the Y8 or C130. Chief. Liang Shaoxiu calmed down, took a deep breath, and said: This indicator requirement is almost impossible to achieve with the 4-engine turboprop power of a traditional tactical transport aircraft, so Before he finished speaking, Ding Gaoheng and Liu Gaozhuo looked at each other: Thats exactly what we came for you for. "You should have heard before that the Aerospace Power Group has planned a large bypass ratio turbofan engine using a turbofan 10 core machine. The thrust is about 13-14 tons. According to estimates, if two turbofans are used, Fan engines instead of four turboprops should be able to achieve the performance just mentioned by Comrade Gao Zhuo. I know this model is one of the three key models planned by the Aerospace Power Group when it was established the year before last, but... ?This sudden information bombardment made Liang Shaoxiu a little confused: I remember that the turbofan 10 was only officially finalized in December last year. Has the project for this large bypass ratio turbofan been approved now..." Thats not true. Ding Gaoheng shook his head: Comrade Haonans current main focus is still on the production and finalization of the turbofan 10, but Haofa Group has already started project planning. However, considering the speed of project progress in the aviation power field in the past few years, we still believe that a time lag should be set to match the aircraft and aviation development schedules..." ?Hearing this, Liang Shaoxiu suddenly realized The statement "make a time difference" has obviously fully taken into account his feelings. Actually, he is worried that if he and Mr. Chang start the project at the same time, other people''s engines may have been finalized, but the aircraft is still in the design state... And whats even more troubling is that Even Liang Shaoxiu himself had to admit that this possibility was not low. There is, of course, another level. Even if the aircraft progresses faster, you can get two PS90As from C909 or IL-76MF to test fly first. But if the engine progress is faster, China currently cannot find a model that can be installed. The No. 760 aircraft at the Flight Test Institute is, after all, an aerial test bed. Only one engine can be replaced, which does not meet the design finalization requirements. Just wait. It takes too much time. ?After thinking through this level, Liang Shaoxiu nodded decisively: "I see." Then, Comrade Shaoxiu. Ding Gaoheng looked at him with a smile: Are you confident that your Qin Aircraft Industry Group will take the lead in completing the design and development of this new model from scratch? ?Liang Shaoxiu''s eyes flashed. Start from the beginning! In the past, due to the historical background and strength of Factory 182, several projects it handled were minor repairs based on Yun 8. But this time, it is a new project that is not directly related to Yun8, or even to any model at home and abroad. If it is done, there is a high probability that Qin Fei will be able to get rid of the shadow of Hao Fei next door and truly become an independent and important part of the Aviation Industry Group. And his name will definitely remain in the history of Qinfei Group and even the entire Chinese aviation industry... Liang Shaoxiu stood up and stood at attention: Guaranteed to complete the task! (End of this chapter) Chapter 881 Trouble at the signal transmission level Chapter 881 Trouble at the Signal Transmission Level ??Although the Y-9 at this time has no blood relationship with any other model, the overall design of a military transport aircraft does not actually have much variety. In particular, superior units and user levels have now given very clear technical index requirements. Not to mention anything else, just "the cross-sectional area of ??the cargo compartment is not less than 85% of the IL-76" plus "turbofan power" do not leave much room for manipulation at the design level. Turboprop-powered transport aircraft can also tolerate some weird designs due to their slow flying speed. However, for jet transport aircraft whose cruising speed is generally above 600km/h, their overall aerodynamic characteristics are highly homogeneous. ? Full metal semi-monocoque structure, cantilevered upper monoplane with swept back angle and T-shaped tail, hanging engine... Basically, it is an Il-76 that has been reduced in height and shortened in length, but the width remains roughly the same. Or in other words, it is an all-round reduced C17. There is little room for opportunism through ingenuity. Its basically just hard work. The key to the success or failure of a model lies in the design at the structural level and the supplement and improvement of some details. ?Radical air-blowing lift-increasing technology is too risky for a tactical twin-engine aircraft and is a design that outweighs the gain and loss. As for winglets, Huaxia already has rich experience in past models, so it is worth a try. In addition, tactical transport aircraft have the need to take off and land on non-paved runways, so special attention needs to be paid to the design of the engine''s anti-foreign object and landing gear structure. Fortunately, even the larger IL-76 has this capability. It''s not as if his eyes are completely black... In short, almost on the way back to Nanzheng from the capital, Liang Shaoxiu had already roughly conceived the overall appearance of this plan. What Ding Gaoheng said before was very clear. Take the lead with Qinfei Group. In other words, it can also receive support from other brother units within the aviation industry system. Actually, this is normal. An aircraft of 80-90 tons is not big, but for China Aviation Industry, it is still a blank slate. We must concentrate our efforts on tackling key problems. ?However, that is all after the formal establishment of the project. The top priority is to turn Yun 9 from a demand into a formal project. ?Therefore, after getting off the plane, the first thing Liang Shaoxiu did was to concentrate the main research and development capabilities of Qinfei Group and start deploying pre-research work... On the other side, Chang Haonan didnt know at this time that Ding Gaoheng had already arranged the research and development work of Yun 9. He is working hard to perfect the ultra-short laser processing technology as soon as possible... Still in the conference room of the Aerospace Power Group. Another lively project seminar is underway. The reason why I say "again" is because since the project was officially approved last month, similar plots have been staged here almost every few days. ?First, Chang Haonan routinely demonstrated the progress at the theoretical level, and then several leaders in charge of hardware research and development began to argue. ? ? And the situation today... ? ? ? It''s similar. As usual, Chang Haonan was the first to speak: Last week, Academician Hous team has used femtosecond pulse lasers to verify the ablation threshold model I proposed before. Furthermore, thanks to the fact that femtosecond lasers can be used for experiments with pulse widths of smaller steps, we also noticed some conclusions that were not reached by calculation alone. Xi''an Institute of Optics and Mechanics developed a femtosecond (one thousandth of a picosecond) laser in the mid-1990s. However, the peak power could not meet the needs of industrial production, so it was not selected as a light source by Chang Haonan. ??However, it is enough to just conduct material science research. "According to the ablation threshold model, when laser irradiates the surface of a metal material, due to the small specific heat capacity of the electrons in the metal and the intense inverse bremsstrahlung radiation, the electrons absorb a large amount of laser energy in a very short period of time, and the electron activity increases instantly. High, and through the collision of electrons, a Fermi-Dirac distribution appears. "At this time, since the temperature of the free electrons is much higher than the temperature of the crystal lattice, the temperature of the crystal lattice gradually rises by obtaining heat through collision with hot electrons, and finally reaches a thermal equilibrium state. The specific collisions required to achieve a thermal equilibrium state The time is mainly determined by the electron-phonon collision relaxation time, but for most metallic materials, it is on the order of 10 picoseconds. " But now we find that below 10 picoseconds, it can be further divided into three more detailed processes. Theory and experiment are always complementary to each other. ?Before Chang Haonan proposed the ablation threshold model, this femtosecond laser did not show particularly considerable scientific research value in the first few years of its birth. Without this laser for testing, the improvement of the ablation threshold model will be greatly slowed down. After a slight pause, Chang Haonan switched to a page of PPT, and then continued: "10 femtoseconds after the high-energy laser irradiates the surface of the metal material, the electrons will be stimulated ionization, and if the irradiation time is continued to 100 femtoseconds, the electron-phonon coupling will begin to occur, but it will not appear at this time. Visible thermal effects. "Continue to extend it to 1 picosecond, and the electronic lattice thermal equilibrium process will begin. The thermal effect at this time has gradually begun to appear, but the number of affected molecules is far lower than the number of molecules directly converted to the plasma state, and can basically be ignored. "Thanks to this discovery, I revised the ablation threshold model again and added two variable parameters related to the non-thermal melting process. The differential expression after solving through the implicit method is..." When Chang Haonan introduced new developments, the atmosphere in the conference room was generally calm. In addition to Academician Hous frequent active exchanges, there are only occasionally one or two people who raise their hands to ask questions. First of all, these sub-picosecond level studies are more based on future needs and will not have a great impact on the current picosecond level project. Secondly, and more importantly... ?It is true that there are not many people who can fully understand it. ?However, the next part is not so harmonious... ?After a short tea break, the two technical teams responsible for controlling signal transmission and light source control started fighting. Mainly because this device is so awkward. ? Han Zhigao, the leader of the light source control team, first expressed his position: Mr. Chang, after the last meeting, we built a simple prototype for testing. So far, we have discovered at least 8 major factors that affect laser processing. "In addition to beam quality and pulse width, which we have thought of before, there are also luminous flux density, polarization state and defocus amount. This refers to the defocus amount itself. That is to say, even if the energy ultimately acting on the material surface is the same, different The amount of defocus will also produce different processing effects..." The general meaning of these words is one: The control requirements for this processing method are extremely precise. The signal transmission process must meet low latency, low noise, high bandwidth and high stability. In addition, because the equipment itself is highly complex, the electromagnetic signals radiated outwards must be controlled at extremely low levels. level. Huo Penghua, the head of the signal transmission team, said that you are probably not dreaming. Just two low-loss conversions between optical signals and electrical signals are enough to cause a headache. How can something so good can satisfy you so much? The requirements, especially the requirement of low electromagnetic radiation, are in conflict with high bandwidth. Unless a layer of shielding layer with an outrageous thickness and weight is added, it is simply impossible to achieve. What''s even more troublesome is that in order to compensate for signal delay between the acquisition end and the control end, a technology called "real time delay line" needs to be introduced, and the compensation ability of this thing is related to the physical length, which can easily be dozens or hundreds. meters, which will have an adverse impact on transmission delay and loss... ?Chang Haonan looked at Academician Hou, who said that the problems they mentioned existed objectively, and it was indeed difficult to satisfy them at the same time. ?So the situation became deadlocked. (End of this chapter) Chapter 882 Optoelectronic data transmission Chapter 882 Optoelectronic Data Transmission Listening to the argument between Han Zhigao and Huo Penghua, Chang Haonan also felt a little bloated. ??Of course he has done a lot of projects like this that have been implemented at a specific level. But the vast majority of them, be it airplanes or aero-engines, are considered their own profession. Even if you have never eaten pork before being reborn, you have at least seen pigs running away. ?Its naturally not difficult to get started. And a few that don''t count, such as the previous heavy-duty die forging press and the earlier soft abrasive polishing technology, there are always relatively mature experiences for reference. Among them, the overall design of the former is even semi-finished. plan. It actually just requires him to solve some key puzzles. However, what we are facing this time is actually a completely new challenge. ??Ultra-short pulse laser processing equipment is literally created from scratch. Even the theory was picked out bit by bit by him. Let alone the engineering level. Leave it alone domestically, there is no precedent for him to refer to abroad. Just a little bit of fumbling. ?However, Chang Haonan knew that the two of them could not continue to quarrel like this. ? Normal work collisions are okay, but if they get angry, it will inevitably affect the progress of subsequent projects. Team Leader Huo. He interrupted the argument: If the volume and quality limitations are not considered for the time being, can it be achieved from a technical perspective alone to meet the needs of Team Leader Han? ? This type of equipment does not need to be exported. Once built, it will most likely be left in place for more than ten years or even longer, so it does not matter even if it is large in size. The most you can do is go directly to Shengjing and build it in situ. Just treat it as part of the infrastructure construction. ?This idea made Huo Penghua stunned. Never in his career had he seen such a strange request. But if you think about it carefully, many engineering problems are indeed caused by size limitations. If you let yourself go in this regard, you can indeed avoid a lot of problems. Han Zhigao, who had been arguing with him just now, also began to seriously consider the possibility of this idea. ?As far as the optical path is concerned, although the increase in the size of the equipment will lead to a longer propagation distance, this is not a problem for lasers. Scattering and attenuation will not become unacceptable just because it changes from 1 meter to 10 meters or 20 meters. On the contrary, the accuracy requirements for some parts can be reduced. Everything looks great. ?However, Huo Penghua finally shook his head: Even if the volume and weight are not limited, at most it can only solve the problems of electromagnetic radiation and transmission bandwidth, but delay, synchronization rate and loss will still exist, and may even become more serious due to the increase in volume... At this time, Academician Hou Xun also intervened: And a lot of electronic leakage, noise and distortion are not caused by the transmission process, but by the signal conversion process, which has little to do with the size of your equipment. This is basically the final conclusion. ?Chang Haonan had no choice but to put aside this somewhat outrageous idea for the time being, and then began to consider other possibilities. Fortunately, after such an interruption, Han Zhigao and Huo Penghua lost interest in continuing the verbal confrontation. Technically speaking. A few minutes later, Huo Penghua spoke again: The use of magnetostatic wave devices and superconducting wires is... As soon as he said these words, the comrades in the third group responsible for material support looked at him with a very unkind look and silenced him. No matter what, if anyone can achieve room temperature superconductivity, they can just wait and win the Nobel Prize. Obviously unrealistic. For a while, the conference room became quiet again. Low loss, large bandwidth, small radiation, high resolution Chang Haonan listed a series of requirements for the entire data signal processing process on the notebook in front of him. Then, another possibility suddenly occurred to me. A new possibility. What if we modulated the signal onto light? Chang Haonan''s words suddenly broke the silence. ?However, even for the experts here, this statement is a bit awkward, so no one reacted immediately. So he explained it further: I mean, using optoelectronic signals instead of electrical signals throughout the system? The moment before he spoke for the second time, Chang Haonan suddenly had an intuition. ?So while speaking, he threw the overall idea to the system for verification. Although this idea is not perfect, it requires an extremely high number of scientific research points to be perfected. But this leaves no doubt that The idea is feasible! This made Chang Haonan immediately full of confidence, and he immediately continued: "The optical carrier frequency is very high, so the signal bandwidth is narrowband compared to the carrier frequency. The transmission characteristics of the line are inherently more stable, and the loss rate of using optical fiber to transmit signals is almost negligible compared to traditional coaxial cables or waveguides. There is no fundamental problem of electromagnetic radiation, and even the electromagnetic shielding layer can be omitted..." In fact, his inspiration also came from his old profession ?Since the second decade of the 21st century, some technologically radical aircraft models have begun to further upgrade their fly-by-wire flight controls to optical-wire flight controls. The two are similar in principle and design, but use optical fiber instead of traditional cables, which has higher potential in terms of aircraft weight reduction and signal feedback efficiency. Previously, Chang Haonan even considered whether China''s aircraft design could skip telex and directly enter the era of optical transmission. But after careful consideration, there are still a large number of signal sources on the aircraft that rely on electromagnetic radiation, such as radar. Therefore, if we fully switch to optoelectronic control, we will need an additional complex electro-optical-electric conversion process. Not to mention radar signals may also be It is further contaminated by optical path noise or interference, resulting in new distortions and distortions. Generally speaking, it is too difficult to use on small aircraft. As for use on large aircraft It is technically feasible. ?For example, the first model in the world that applied optical transmission flight control was the P1 anti-submarine aircraft. But lets not mention that China does not have a serious large aircraft on hand. Even if it does, large aircraft are not sensitive to weight, volume and control efficiency, and it seems difficult to take advantage of the light control system. P1''s optical flight control is also more of a technical verification. So this idea was put aside for the time being. But then again. ?At present, this laser processing equipment does not rely on electromagnetic radiation to work. On the contrary, its core equipment is a set of light sources. ??Although high-energy laser beams and optoelectronic signals are completely different, they at least eliminate the need for an electrical-to-optical-to-electrical conversion system that must be present on an aircraft. Overcome once and for all... Well, actually I havent overcome it. It should have bypassed the two biggest problems. At the same time, after a short period of thinking, other people in the conference room also gradually realized the feasibility of this plan. Especially Huo Penghua. It seems thats more than that ?His eyes gradually brightened: "Because of the characteristics of ultra-short pulse lasers, we need a very high-frequency control signal to meet the needs of high-precision processing. The low loss of optical fiber has nothing to do with frequency, so high-frequency signals can be transmitted directly in the link in their initial form. No down-conversion or digitization is required, and two rounds of signal conversion processes are eliminated As Academician Hou said just now, the adverse effects caused by the signal conversion process are difficult to eliminate. But now we are directly removing the firepower and cutting off two parts of this process, which is naturally a blow to dimensionality reduction. But this also means that we need to start from scratch and redesign a whole set of components related to optoelectronic signals. Academician Hou said and looked at Huo Penghua at the other end of the conference table: Penghua, the burden on you is even heavier. Before the latter could respond, Chang Haonan added: Its not just a matter of components. "Related foundations of optoelectronic transmission, such as modeling of optical switch characteristics, switching crosstalk of optical switch delay networks, delay errors, and the impact of these crosstalk and errors on array pattern and pulse compression... The accumulation of technologies in these areas are all Its relatively weak and we may need to build it up. Leader Huo, I can apply for some more manpower in the optoelectronics field, but considering the nature of the project, this number should not be particularly large. Having said that, there is no second way before Huo Penghua. Furthermore, compared with the traditional technical route that has no way out at all, the future of optical transmission systems at least looks bright. As for how twisty the road is I cant care about it now. Mr. Chang, Academician Hou, I promise to do my best to complete the task! He immediately stood up to express his position. Chang Haonan nodded with satisfaction upon seeing this. After thinking for a moment, he looked at Academician Hou on his left: "Academician Hou, the tasks on Team Leader Huo''s side are indeed very heavy, and the theoretical research on my side is progressing relatively smoothly, so I''m thinking that maybe you can transfer the progress on Team Leader Huo''s side to me. One portion? In fact, he was planning to bypass the latter and take Huo Penghua''s R&D team directly into his own hands. After all, although Chang Haonan did not have enough scientific research points to complete the entire project directly, if Huo Penghua could provide specific problems and ideas, it would be no problem to guide the specific research and development path. ?Its just that as an academician, Hou Xun still needs to symbolically solicit other peoples opinions. Of course Academician Hou understood the meaning behind this sentence, so he followed suit: How about this, Mr. Chang, let Penghua submit one to each of us when submitting project progress reports in the future? We are all decent people. ??As the project leader, Chang Haonan still holds the decision-making power. Others respect him, but he has to hold it in check. "Well, the next task is settled." Chang Haonan breathed a long sigh of relief and glanced at the dozen core members attending the meeting in front of him: Team Leader Huo will stay alone after the meeting, and we will discuss more specific research and development issues. Othersdismissal! (End of this chapter) Chapter 883 New equipment for the navy and air force Chapter 883 New equipment of the navy and air force In fact, after opening up the idea, the progress of the project was far more optimistic than everyone expected, including Chang Haonan. This is determined by the principle of optical signal propagation. The speed of light is constant, one of the most basic laws of the universe. In daily life, electrical signals and optical signals can basically be considered as instantaneous transmission. ??Moreover, if in a complete vacuum condition, the electrical signal exists in the form of electromagnetic waves, then it can indeed be equal to the speed of light. But if you look into it more deeply, its not the same thing ?In practical engineering applications, electrical signals often rely on current to be conducted in the medium. ??When the medium is a single copper or silver wire, electrical signals can travel at about two-thirds to three-quarters of the speed of light. Still not much different. ?However, the conductive medium in a complex system obviously cannot have only one wire. ?Various electronic components can have a negative impact on current conduction. ?The end result may even be one to two orders of magnitude slower than optical signals. Therefore, the project team only replaced the cables in the prototype with optical fibers and replaced the supporting equipment accordingly, which greatly reduced signal delay and distortion. For picosecond lasers, it is already a barely usable level. At least other groups can proceed with the project normally according to the original plan and put the results on the prototype for actual machine testing. Rather than everyone stopping and waiting for Huo Penghua''s progress. This also made all the technical personnel involved in R&D breathe a sigh of relief. Especially Chang Haonan. ?Last year, he was able to stay in seclusion for a month or two and only exchange minimal information with the outside world. That was because there were no major project nodes and no situation changes that required special attention. But its already 2001. Times have changed. The current month of March can be considered calm, but the next three quarters, if nothing unexpected happens, can be said to be full of big news. ?There are roughly four or five types of models related to Chang Haonan that are planned to be mass-produced this year or delivered to the troops in small batches for trial use. Not to mention the outrageous and ruthless work that will be done in the second half of the year Although the current timeline has deviated slightly from the previous life, whether intentional or not, Chang Haonan has avoided exerting too obvious influence on the Middle East in recent years. Just to wait for this wave. So, as the main leader of the aviation power group, and someone who can also influence the direction of policy to a certain extent, he must be able to multi-task. ?Ultra-short pulse laser processing is the biggest project at hand, so it is always good to save some energy from it. As if to confirm this idea. In late March, Chang Haonan, who was busy working on the project, received two invitations. The first one comes from Qinfei Group. The Air Police 200 early warning aircraft has completed most of the national identification projects. Considering that the remaining part is to examine the adaptability under extreme weather conditions and needs to wait for a time window to appear before proceeding, and the assessment content is only related to airborne equipment and does not involve flight safety, the superiors decided to convert the verification aircraft into a prototype. The Air Police 200, which was converted into a mass-produced prototype, was delivered to the aviation force in advance for trial use. Chang Haonan, as the deputy chief engineer of the project, had almost no formal appearance during the research and development process, but at least participated in the pre-research and overall plan determination before the project was established, and was naturally invited to attend the delivery ceremony. Originally, this should be a good thing. Chang Haonan didn''t mind spending two or three days on a trip to Nanzheng. However, just when he had arranged his schedule and was preparing to reply to the Qin Fei Group, he received another invitation from Shengjing. The content...is almost the same as the previous one. ??The J-11B, which has been in trial production since the second half of last year, has finally saved up enough 12 turbofan 10A engines for 6 aircraft, which can be delivered to the troops... Thats great Chang Haonan looked at the two envelopes in front of him, and suddenly had a strange feeling that "the child has grown up." After all, these two projects are typical examples of he was involved in them, but he did not directly participate in them, and they were successfully completed in the end. This is also what Chang Haonan hopes to see most. The only problem is Although they are not arranged at the same time, they are just the front and rear feet... ?This cannot entirely be blamed on the arrangements of the aviation industry. In the final analysis, Party A has the final say on the delivery of mass-produced machines. ??Although the People''s Liberation Army does not engage in feudal superstition, it is obviously a routine operation to choose a memorable day for important events. Of these two models, one was delivered to the Navy by Qinfei Group, and the other was delivered to the Air Force by Shengfei Group... Logically speaking, there should be no influence at all on each other. So, both sides chose the day of March 25th. That was the day when the large-scale southeast exercise ended five years ago. The meaning behind it is self-explanatory. It was just a pain for Chang Haonan who was invited at the same time. For the first time, the Navy has its own early warning aircraft. For the first time, the Air Force has a fully domestically produced third-generation fighter jet. Two happy things coincide with each other... Why does it become... Ahem Fortunately, the delivery ceremony of the Air Police 200 was in the morning, while the J-11B was in the afternoon. It was barely a time difference. ?Chang Haonan flew from Beijing to Nanzheng the day before, that is, on the afternoon of March 24. ??Accompanying him was Zhang Hongbiao, one of the deputy directors of the Science and Technology Commission. The two of them are old acquaintances. We have participated in the celebration ceremony of the C808 passenger aircraft completing its certification test flight before. Are you going back to the capital tomorrow afternoon? When the plane was about to land, Zhang Hongbiao asked Chang Haonan. ifier The latter shook his head expressionlessly: "After participating in this one, go to Shengjing immediately to participate in the next one..." ?This answer made Zhang Hongbiao stunned for a moment, and then he couldn''t help laughing: Yes, I forgot, the delivery of the J-11B is also tomorrow. Chang Haonans head was covered with black lines, he held his forehead and sighed: So you dont have to go there? "Need not." ?Zhang Hongbiao could still keep his expression calm, but his tone inevitably revealed a bit of schadenfreude: There is only one you in China, but our Science and Technology Working Committee does not only have one deputy director, so there is no need to bother me... Shengjing is Lao Huais past. At this point, his tone suddenly changed again: This trip was originally requested by Lao Huai, saying that he wanted to take a last look at the projects he had handled before retiring Lao Huai naturally refers to Huai Guo Mo. Deputy director in charge of external technical exchanges. ??He was also one of the leaders of the Science and Technology Commission that Chang Haonan first came into contact with. He was deeply involved in the original negotiations with Sukhoi on Project 11. Including details related to the introduction of production lines and cooperation in improving the airframe structure. ??Now the J-11B has been successfully delivered. Although it is only a trial production batch, it can be regarded as a successful conclusion to the entire project. When Project No. 11 was signed, I am afraid that even Huai Guomo himself could not imagine that he would be able to see this day before he retired. After all, to produce a heavy-duty third-generation aircraft from scratch, improvements must be made on this basis. ?At the time, it seemed that it had to be a long-term project with a cycle of 10-15 years. By the time Huai Guomo retired, the team that Chang Haonan had just returned from his rebirth, with the exception of Ding Gaoheng, had all retreated to the second line, or simply retired. As for Ding Gaoheng Judging from the current situation, after two years, there should be a chance of making another half step forward. ?Of course, whether it can be successful depends not only on Director Dings own efforts, but also on Comrade Xiao Changs progress in promoting the timeline... (End of this chapter) Chapter 884 The route of future early warning aircraft Chapter 884: The route of future early warning aircraft ?The plane made a tight turn over Nanzheng, and then slowly landed on the runway of Chenggu Airport. Comparing to Shengfei or Rongfei, which Chang Haonan has often visited in recent years, Qinfei Group is indeed far behind in terms of scale and development level. This is not difficult to see from the situation at the airport. After all, it was just a backup set up just in case during the third-line construction stage, and its status was similar to that of Guihang Group in the mountains. Hence, after the end of the special period, the status itself is rather embarrassing. ?Before Chang Haonan was reborn, Qin Fei had even reorganized assets with Hao Fei. It is said to be reorganized, but actually it is merged into the latter. After all, the geographical location and business scope of the two are relatively close. ?At that time, there were only three aircraft models of over 80 tons (Yun-20, Y-9, and H-6K). There was really no need to retain two production bases for large aircraft. But in this life, the development of China''s aviation manufacturing industry has been more than 100 million points better than in the original timeline, so Chang Haonan actually still intends to lead the little brother Qinfei Group. Since we are here to participate in the delivery ceremony of the Air Police 200, naturally there are two chief engineers waiting on the tarmac. Wang Xiaomo and Liang Shaoxiu. ??A little further away, the Air Police 200 has been painted in the gray and white paint characteristic of naval aviation, and even has the four characters "Chinese Navy" written on the side. There were many maintenance personnel wearing blue 87-style marine camouflage standing around. Obviously, at the operational level, the aircraft should have been taken over by comrades in the naval aviation. What we have to do tomorrow is just a handover ceremony. Chang Haonan is naturally very familiar with the Air Police 200. Not only the overall design plan came from him. ??And about a year ago, he also verified high-level data dimensionality reduction technology on this aircraft. It can be said to be hardware and software. Therefore, after some simple greetings, what was originally supposed to be a two-on-two arrangement, unknowingly turned into three other people introducing the basic situation of the entire project to Zhang Hongbiao... By the way, Mr. Chang. Liang Shaoxiu, who was walking slightly behind, suddenly stopped Chang Haonan: Some time ago, Director Ding and Mr. Liu specially called me to arrange a transport aircraft project for you. Chang Haonan was stunned: Moving so fast? ?Of course he knows this. After all, it was Chang Haonan himself and Ding Gaoheng who first proposed it. But a few months later, the aviation industry has begun to organize research and development efforts, which is indeed a bit unexpected. ?But then I thought about it, now the top leader of the Aviation Industry Group has been replaced by Liu Gaozhuo... Its quite reasonable. ??Liang Zhuoping cannot be said to be bad, but after all, he is an old man from the head office era. Facing the Aerospace Power Group that has taken away half of the family property, it is inevitable that his mentality will be a little unbalanced. But Liu Gaozhuo does not have this kind of psychological baggage. Furthermore, I have had a very smooth cooperation with Chang Haonan. "Ah...although the leader didn''t say it clearly, he is probably worried about not being able to keep up with the progress of your aviation development." To a certain extent, Liang Shaoxiu can even be said to be the chief engineer brought out by Chang Haonan, so he looked as usual when he said this: After all, if the aircraft is waiting for the aviation engine, it can be tested with other models first, but the aircraft such as the aviation engine cannot even be finalized..." Theres no need to put too much pressure on it, the turbofan 20 may not be as fast as you think. Chang Haonan shook his head helplessly: Although the core engine is readily available, large bypass ratio turbofans still have many unique technical difficulties, and it is difficult to take advantage of them The turbofan 10 can serve with such fast efficiency. In the final analysis, it uses the active cooling design of the leading generation to achieve a higher than expected temperature in front of the turbine. This is combined with the overall design of the leading generation. In the end, it is basically the same as the 3.5-generation engine. performance. At least for now, it cannot be said that China has kept pace with those first-mover countries in the field of aviation development. There are still some shortcomings, and they are not easy to overcome. ?However, Liang Shaoxiu is obviously much more optimistic than Chang Haonan himself: "fine." He waved his hand: You said the same thing when you were designing the anti-icing design for the Yun-8. The final actual effect was better than the theoretical expectation. ?????Is there anything else? ?Chang Haonan himself doesnt even remember. "have." Liang Shaoxiu nodded. Since the other party was so sure, Chang Haonan couldn''t say anything else. His requirements for the Yun 9 project itself are not very high. ?In China''s system, tactical transport aircraft do not actually need to undertake the heavy task of transporting large equipment. But it must be able to fit at least a 3.2-meter-wide standard size pallet. Otherwise, like the Yun 9 modified from the Yun 8 in the previous life, even transporting supplies would be troublesome. Its very stiff. So, the chat among several people quickly shifted to content related to early warning aircraft. After the Air Police 200 is installed, what is your next plan? This question was naturally asked by Zhang Hongbiao. Whether it is a balance beam antenna or a T-shaped antenna, it is always inappropriate for a large early warning aircraft. Wang Xiaomo replied: So, we have built a ground simulation device for airborne radar antennas and are testing three-sided fixed arrays and two-sided rotating arrays respectively. Can it also be made into a double-sided rotating array? ? Zhang Hongbiao, as the deputy director of the Science and Technology Commission, could not do any homework, so he had learned about the ring project before coming and knew the antenna design of the three-sided fixed array. But he is not a professional after all, and if he expands his words a little, his eyes will turn black. Hmm From an antenna perspective, it doesnt matter. Just hide the back-to-back antenna design like a balance beam inside the disc-shaped radome. ??Wang Xiaomo also saw that the other party was improvising, so he described it in a very popular way: "The advantage of this is that for a radome of the same size, the single antenna area of ??the double-sided rotating array can be nearly twice that of the three-sided array, but the total power consumption only increases by about one-third. In detection It will show huge advantages in terms of distance and detection efficiency, but the mechanical structure will be more complex and the weight will be larger. Its not just that. ?After seeing that Wang Xiaomo had no intention of continuing, Chang Haonan added: "The two back-to-back arrays can also be designed with different wavebands. For example, one side uses the S-band for precise scanning, and the other side uses the L-band for anti-stealth detection. Just rotate the corresponding arrays to the mission direction according to different types of mission requirements. " But wouldnt there be two blind spots? Zhang Hongbiao asked: The information I read before said that radar cannot detect the 180 range. Of course there will be blind spots. Wang Xiaomo smiled. ?Thats the look on a professionals face when they hear a laymans question: "However, in most cases, AWACS aircraft are far away from the main battlefield. In fact, the demand for 360 omnidirectional detection is not very large. The problem with balance beams and T-shaped antennas is that the aircraft needs to adjust its route to adapt to the scanning angle, which will have a negative impact on the flight route. limit." But if a rotatable disc is designed, the aircrafts heading will still be free, so a smaller field of view is not completely unacceptable. It mainly depends on the users choice..." In the final analysis, the rotation action of mechanical scanning radar is a necessary step for the normal operation of the radar, and the rotation speed is equal to the refresh rate. ??But for phased array radar, rotation is just to fill the blind spot. After adjusting the angle, it can be stopped and it will not affect the detection capability. Of course, we are also developing some new technologies to reduce the blind area of ??the double-sided array as much as possible. After a brief pause, Wang Xiaomo continued: "The detection angle of a traditional single-sided array is about 120, but if wide-angle scanning technology, such as a real time delay line, is used to replace the conventional phase shifter, it has the potential to increase to 150 or even 160, so that the double-sided The blind area of ??the array will be compressed to a very low level..." Chang Haonan was just wandering behind, but suddenly he heard a term from Wang Xiaomo that he seemed to have heard some time ago. Wait a minute...Academician Wang. He directly interrupted Wang Xiaomos explanation: You just said that wide-angle scanning technology can be used to further improve the detection range of the single-sided array? Thats right. ??Wang Xiaomo and Chang Haonan are old acquaintances, and they were not annoyed after being interrupted midway. They just nodded: But this is only on a theoretical level. The actual situation is far from being as simple as it sounds. I estimate... that it is unlikely to be applied to existing models within 10 years at least. (End of this chapter) Chapter 885 Optical phased array radar Chapter 885 Optical phased array radar For back-to-back double-sided array "camera scan", the difference between the 120 field of view and the 150 field of view may not be particularly big. After all, all it takes is moving the plate a little. But for small and medium-sized early warning aircraft using fixed double-sided arrays, that is, balance beams or T-shaped antennas, the meaning is completely different. Equivalent to reducing the detection blind zone to half of its original size. More importantly, it can reduce the possibility of the AWACS being forced to adjust its route in order to change the detection area. As a technician, Wang Xiaomo was naturally very happy to find that someone was interested in the field he was researching, so he immediately gave a more detailed explanation: You know, the so-called phased array radar is actually an electronically controlled scanning using a phase shifter to control the beam, replacing the mechanical scanning that used a mechanical structure to control the rotation of the antenna array, so it can achieve an extremely high target refresh rate. However, at this point, we still only solved the problem of target refresh rate. If the phased array radar wants to obtain better detection capabilities, it also needs to have a large enough instantaneous bandwidth and scanning angle. "But these two attributes are contradictory on the same radar. The greater the pointing deviation of the radar, the smaller the available instantaneous bandwidth. Generally speaking, the impact of the instantaneous bandwidth is 45, which is within the 90 pointing range. Not big, so shipborne phased array radars that are not sensitive to weight and volume, such as the American Aegis and the Sea Star system we are developing, all use 4-sided arrays to ensure the best detection results. " If no wide-angle scanning technology is used, then when the array normal lobe width is 2 and the field of view reaches 60, which is a 120 pointing range, the allowed relative signal instantaneous bandwidth is only 1%, and the antenna physics The larger the size, the greater the demand for relative signal instantaneous bandwidth, which is completely unacceptable for high-resolution detection. Therefore, the vast majority of phased array radars put into use use real-time delay lines in each transceiver channel to compensate for the spatial distance difference between antenna units. "The ideal situation is to use a delay line on each unit of the phased array antenna, but this means tens of kilometers of extra cables for a phased array radar with thousands of transmitting units. On the one hand, The cost and size are unacceptable. On the other hand, such high-density cables will also produce very strong interference. " So the current common practice is to divide the phased array antenna into a series of sub-arrays, continue to use phase shifters for the units inside the sub-arrays, and use real-time delay lines between sub-arrays. However, for large phased array antennas, dividing the sub-arrays will result in many sub-array-level grating lobes in the field of view, causing the antenna side lobes to increase. In short, the final result is the current 120 scanning angle. Single-sided antenna, all aspects of performance are acceptable After all, he is a senior academician who has been immersed in the field of radar for most of his life, and his explanations are simple and profound. Even Zhang Hongbiao who was following him felt that he understood everything. As for Chang Haonan In fact, when Wang Xiaomo had just spoken a few sentences, he had already remembered that Huo Penghua had mentioned the same term during a seminar some time ago. ??A certain length of wire is also used to compensate for the phase difference between different signals. Its just that in the end Well, its not the end yet. ?However, at least for now it has been replaced by optical fiber. ?Of course, in that laser processing equipment, the main purpose of replacing optical fibers is simply to reduce signal delay. ?Compensating the signal phase difference is just a matter of course. Were all here, lets just put them on together. But similar ideas seem to be introduced to radar This time, its not just about replacing cables with fiber optics. Instead, a programmable optical delay unit is used combined with a microwave photon phase shifter to form an optical beam forming network, which fully realizes phase control of the antenna array elements by photoelectric signals... Chang Haonan''s thinking continued for a long time, until a sudden cold wind interrupted his thoughts. ?However, this is enough. "Comrade Haonan, what new idea did you just...think of?" ?Wang Xiaomo asked with concern. ??He did not speculate on the specific technical aspects of radar. After all, although Chang Haonan had demonstrated his knowledge background in signal processing, he had almost never been involved in the research and development of radar itself before. So I just thought that Chang Haonan had some new ideas about the follow-up development route of the early warning aircraft. There is some inspiration, but its not perfect yet Chang Haonan nodded: "After I go back this time, I will do some calculations on a theoretical level. If the results are more optimistic, I will discuss it with you, Academician Wang." He can still distinguish the priorities of things. ?Wang Xiaomo is an academician of the Academy of Engineering and has spent his career solving problems at the engineering application level. ?Looking at the delivery ceremony tomorrow, telling Wang Xiaomo something that cannot even be called an idea, but can only be regarded as an idea at best, will not bring any real help other than making the other party feel like a cat scratching his heart. It is better to improve the idea and at least come up with a complete theoretical calculation result before discussing this matter. ?However, Wang Xiaomo guessed some clues from the words in Chang Haonan''s answer. Since the latter mentioned "theoretical calculations", it is obvious that the inspiration just mentioned is by no means a large-scale matter such as the development route of early warning aircraft. It is related to specific technologies. As for what specific technology it is... Of course Wang Xiaomo doesnt know yet. ?However, since Chang Haonan didn''t say it directly, he wasn''t going to forcefully get to the bottom of it. Sometimes, it might be better to retain some curiosity... The two people, who each predicted the other''s prediction, looked at each other tacitly, then ended the topic for the time being and walked forward side by side. Only the confused Zhang Hongbiao and Liang Shaoxiu were left, messy in the cold wind... the next day. March 25, 9 a.m. The delivery ceremony started on time. As for the process, it is naturally the same as the third one. First, several leaders, including Zhang Hongbiao, spoke. Then representatives of R&D personnel and pilots expressed their opinions. Then the plane with the big red flowers was dragged from a little distance to the ceremony site for a group photo. Done. The person who led the team to pick him up at the airport was even an old acquaintance of Chang Haonan. Shen Tao. ?However, this is not too surprising. The 4th Regiment of the 2nd Division of Hainan Airlines is still the only full-time special aircraft unit in Hainan Airlines and even the entire military. It is also the unit with the most experience in serving Y-8 III platforms. Since the range of the air-tight Y-8 is truly astonishing, the genuine transport aircraft force has little need for these later improved models, and most of its production capacity has become special aircraft platforms. Deputy Commander Shen. Chang Haonan had already noticed the other party when he was on the stage. After the ceremony, he immediately walked up and said hello: "haven''t seen you for a long time." The last time the two met was at the 50th National Day military parade. A year and a half later, Shen Tao has a star on his shoulder. The position was also promoted from the commander of the 4th HNA Regiment to the deputy division commander of the 2nd Division. Just because the age limit for large aircraft pilots is relatively loose, they still serve as captains within the 4th regiment establishment. Shen Tao''s eyes were originally staring at the Air Police 200 attentively. After hearing Chang Haonan''s voice, he realized that there was someone behind him, so he turned around suddenly. Mr. Chang? I dont know if it was Chang Haonans illusion, but there didnt seem to be much excitement in Shen Taos tone about installing the new model: Hello, hello I feel like Deputy Commander Shen is not very interested Chang Haonan said half-jokingly, thinking that the other party was tired after spinning for too long. ?This situation also occurs after he works for a long time. Not interested in anything. ?However, Shen Tao''s reaction was to slightly twitch the corners of his mouth, trying to put on an excited expression. The result failed. So he had to sigh: Its just some trivial matters at the HNA organization level, no need to mention more... After hearing what the other party said, Chang Haonan suddenly remembered something - In 2003 in the previous life, the unified Naval Aviation Command was abolished. From then on until 2016, all naval aviation divisions were under the simultaneous jurisdiction of the Aviation Department under the Naval Command, the Aviation Technical Support Department under the Naval Equipment Department, and the three major fleets. From the perspective of hindsight, this had a rather negative impact on the organizational construction and equipment training level of the naval aviation force. As for such a big move, it is normal for news to leak out one or two years in advance. Shen Tao is probably worried about this matter. ?However, this kind of issue involving the construction of the military system is quite sensitive, and Chang Haonan knew that it was impossible to intervene directly. So, I had to prepare to talk about other things with the other party. ?But before he could speak, Shen Tao took the initiative to change the topic: Anyway, I would like to thank your aviation technology department for providing more advanced equipment. If we could have had the things we have now at this time five years ago, Im afraid... it would not be impossible to rewrite history. ? Shen Tao, then deputy commander of the 4th Regiment, naturally participated in the naval and air exercise in 1996. ??Its just that the main equipment of the 4th Regiment at that time was only a few Y-8Xs used for maritime surveying and patrolling. They could only wander around the periphery for a few times, looking helplessly at the tense core exercise area. Shen Tao still remembers that feeling of black eyes and burning heart. Now the first early warning aircraft has finally been installed. Although it is only a transitional model from "backup to regular" that year, it at least gives the special aircraft unit the ability to directly participate in sea and air confrontations. Let bygones be bygones. ?Chang Haonan patted the other party on the shoulder: If I have to say it, it was the stimulation of that incident that made me determined to work hard... ?This sentence is not wrong, but it is not completely correct. It is true that he was determined to become stronger back then, but after all, human abilities have their limits. What really changed everything was the wave of rebirth with memories and experiences, and of course the system. Its just that this is something Chang Haonan cannot tell anyone... Is there such a thing? Shen Tao naturally didn''t know the twists and turns. He just glanced at Chang Haonan next to him with a slightly surprised look, and finally there was a smile in his tone: Then based on this calculation, the Americans actually suffered a big loss..." (End of this chapter) Chapter 886 Chang Jiayao’s work assignment Chapter 886 Chang Jiayaos work allocation This may be Chang Haonan''s busiest day since his rebirth. After the delivery ceremony of the Air Police 200, he didnt even have time to have lunch in Nanzheng, so he flew directly to Shengjing to prepare for another delivery ceremony in the afternoon. Since Liu Gaozhuo has been promoted to the general manager of the Aviation Industry Group ahead of schedule, the representatives sent by the No. 11 Engineering Technical Team are He Ming, who is responsible for the aircraft production and assembly tasks at Factory 112, and Sun Cong, who has been Liu Gaozhuos deputy before. The former is considered an old acquaintance of Chang Haonan. ?But the latter... ?Although he was famous in his previous life, he is not very famous this time. ?Chang Haonan only met him once when he was receiving the bat hunting medal award a few years ago. Later, his research focus gradually shifted from complete aircraft to aviation development. Later, he even became independent from the Aviation Industry Corporation, so there were naturally fewer opportunities to meet him. Looking at the two people approaching, Chang Haonan cheered up and walked down the gangway: ??Thanks to the relatively high cabin pressure of business jets, he just managed to rest for a while on the road and regained a little energy In the past, he would usually make up for a continuous period of rest after a continuous period of work. But this time, he basically just put down the project at hand and rushed to two shows in a row. Its really a bit overwhelming. Mr. Sun, Mr. He. ?Chang Haonan shook hands with the two of them respectively: Congratulations to both of you for achieving the landmark victory of Project 11! The J-11, a heavy-duty aircraft platform, will naturally continue to develop. But as for the No. 11 project in cooperation with Sukhoi, it will officially come to an end when the J-11B and Su-27SM are finalized respectively. This is not only a victory for us, but also a victory for you, Mr. Chang, and every China Airlines employee. ?Sun Congs face showed unconcealable joy. After exchanging pleasantries, several people walked towards the ceremony site that had been set up in the distance. Mr. Sun, after the J-11B is finalized, what is your next work plan? ?Chang Hao walked south and looked at Sun Cong next to him. ?Although there has been no official order yet, it is basically a certainty that Sun Cong will take over from Liu Gaozhuo to be responsible for the subsequent upgrade and improvement of the J-11. As the leader of the aviation power group, he must pay attention to the new chief engineer''s ideas. After all, the two actually cooperate with each other. Right now, we will definitely continue to develop the two-seater model J-11BS. Mr. Liu should have told you about this before. Sun Cong naturally had no intention of concealing anything and replied immediately: What about the future... We have already received some news from our superiors, and it should be time to consider the issue of carrier-based aircraft. "Although the Flanker is still a bit too big for most aircraft carriers and is not conducive to surface operations, we currently have limited resources and time, and it is impossible to develop a medium-sized third-generation aircraft suitable for boarding ships, so we still Lets solve any problems first ?Hearing this answer, Chang Haonan roughly thought about it. The development process of aviation development needs to be coordinated with the aircraft. From this point of view, the next improvement direction of the turbofan 10 after completion of production and finalization should be a special model for carrier-based aircraft. Lets call it Turbofan 10H. Of course, this is definitely a limited improvement. Mainly to provide a "take-off mode" with greater thrust, and to improve the corrosion resistance of cold-end components and casing casing. Increasing thrust is not difficult for Chang Haonan. After all, the turbofan 10A itself is a model that has been reduced in thrust and increased in life. Just release the previously hidden performance potential. But the second thing still requires additional attention. Between seaside land airports and aircraft carriers, they are not the same thing after all. While the three of them were talking, they had already arrived near the ceremony site. ?Several Air Force leaders and pilots are gathering in twos and threes near the J-11Bs that are about to be delivered. The situation is slightly different from the situation on the Air Police 200 side. The ground crew around the aircraft are still technicians wearing aviation industry work clothes, not Air Force ground crew. Speaking of which, which unit is receiving the equipment this time? ?Chang Haonan looked back from a short distance away, and then asked Sun Cong. The previous J-11B was not mass-produced and delivered until 2009, and the first batch of aircraft used AL31F engines. The technology was not very mature, so it was naturally handed over to the 1st Division and 1st Regiment in accordance with the principle of proximity. ?But now, the J-11B is a relatively mature model, and at least there have been no major problems during the test flight. More importantly, the 1st Regiment just switched to the J-8C four years ago. From the perspective of maintaining the combat effectiveness of the unit, it is unlikely to switch to a new model immediately. "Two units, one is the 89th Regiment of the 30th Air Division, which is also a unit of the Shengjing Military Region. It is at Donggang Liu Xiaoyuan Airport... uh... it is Dadongou Airport, not far from us, and the other is a little further away, the 3rd Division and the 9th Regiment. " Commander Wangs troops? It''s reasonable, but a little unexpected. "right." Sun Cong nodded: "They have been equipped with Su-27SK before and are relatively familiar with this model..." Zheng Liangqun, who was previously in the Shengjing Military Region, has been transferred to the Jingcheng Military Region, and Chang Haonan has no acquaintances in the Jinling Military Region, so he did not go to those airmen. Comrade went next to him and sat in the left position in the middle of the rostrum according to the arranged position - The most popular one is of course Huai Guomo. ?However, as the biggest leader, he should wait a while before he comes forward. ?But Chang Haonan didnt go looking for anyone else, but someone else took the initiative to find him. Just when the former was about to close his eyes and meditate, a familiar voice came from the side. "Mr. Chang, you are well." ?Chang Haonan raised his head slightly and found that it was Zhang Jiujiang who came into view. Instructor Zhang? He was a little confused for a moment. In any case, the flight academy seems to have nothing to do with today''s delivery ceremony. ?More than twenty years later, many J-11BS or BSHs have indeed entered aviation schools to serve in combat flight training missions. But now every J-11 is a treasure, how can it be lost to training units? ?However, the other party quickly answered Chang Haonans doubts. I am no longer an instructor. ?Zhang Jiujiang said as he took off his hat, put the hat badge forward under his left armpit, and sighed softly: I have a physical problem. I was grounded last month. I was transferred from the flight academy to the Air Force Staff Training Bureau. I will have to sit in an office from now on ??Although this transfer is undoubtedly a promotion, Zhang Jiujiang is obviously not happy. He is still nostalgic for the blue sky. In this situation, Chang Haonan could not do anything but comforted: Its good to be a little more stable, and even if theres nothing like this, youre almost at your age, right? You have forgotten that although I have the title of flight instructor, I am actually a test pilot. In principle, I can fly to 48 Zhang Jiujiang replied jokingly. At this point, he suddenly changed the topic and lowered his voice: Speaking of which, Mr. Chang, your sister will soon be thinking about her graduation assignment. Do you have anysuggestions on this? It is said to be a suggestion, but as long as it does not obviously violate the principles, this suggestion can most likely be "corrected". Are there any options? After hesitating for a while, Chang Haonan decided to make a small use of this relationship. ?After a pilot graduates from aviation school, he will definitely not be released to fly solo immediately. Instead, he will undergo a round of training after entering the army. It is somewhat similar to the training of medical students. Its just that you can receive wages normally during this process. This round of allocation will most likely determine the unit a pilot will be in in the first few years of his career, or even for more than ten years. So it is very important. Basicallythe whole army can choose, and all units are short of pilotsbut female pilots cannot be assigned to bomber units. Zhang Jiujiang replied: My sisters overall score is ranked 15th, and her job selection priority is very high, so you can refer to her opinion. Chang Haonan shook his head: "I asked Jia Yao during the Chinese New Year this year. She didn''t have any special ideas. In this case, I still hope she can stay closer to the capital." Then34th Division? ?This time, Zhang Jiujiang almost did it without thinking. "ah?" Chang Haonan was immediately shocked: A new pilot flies a special plane? He felt a little numb in his back. Just kidding, the plane he took was operated by the 34th Division. Noits definitely impossible for a rookie to fly a special plane like her, let alone her, even a 10-year-old pilot cant fly. Zhang Jiujiang waved his hand: "But those Tu-154M/Ds that were converted into electronic reconnaissance aircraft were actually operated under the name of the 34th Division. Although they are not as good as more advanced models, they are still passenger aircraft after all, and they are better than Yun-7 and Yun-8. We fly a lot, and were based in the suburbs of Beijing. Special aircraft ?Chang Haonan hesitated for a moment: If it does not touch the principle of distribution, then this is the best. (End of this chapter) Chapter 887 The gust of wind returns to the blue sky Chapter 887 The gust of wind returns to the blue sky At the same time Chang Haonan attended the J-11B delivery ceremony. France, Villaroche, Air Force Base No. 125. Istel Flight Test Center. A completely black fighter jet slowly emerged from the huge temperature-controlled hangar and drove smoothly towards the taxiway. ??This aircraft has no visible tactical number and no positioning markings commonly seen on the surface of prototype aircraft. In addition to the circular emblem of the French Air Force, the French flag and the Dassault logo, only the three characters "C01" on the side of the vertical tail can indicate the identity of this aircraft. Rafale C, the No. 01 prototype of the mass-produced Rafale. In fact, this aircraft completed its first flight ten years ago and had already completed all its test tasks. ?As long as the Rafale officially enters service, it can be honorably retired together with the earlier Rafale A01 and enter the memorial hall. But at this critical moment, the twists and turns caused by the M88 engine project still pulled this ten-year-old comrade out of the hangar Replace the M88-2 engine with a modified design and conduct test flights again. Today is the moment when it returns to the blue sky. ?In the flight control center not far away, Serge Dassault was flipping through the test logs in front of him, while glancing at the C01 prototype gliding smoothly past the window out of the corner of his eye. To this day, its hard for me to believe that we actually found Chinese people to solve the problem. He said in a rather unbelievable tone: Judging from high-altitude platform simulation tests and ground installation tests, part of the performance of these two M88-2 engines is even... better than the previous solution proposed by General Electric..." ?Although Dassault is the head of the company, he is also an engineer, so he does not doubt the rigor of this test log. ??I just feel that this plot is a bit magical: "Vesta, I remember you said before that it only took eight months from the time you officially started cooperating with China to the time they came up with this plan?" At this point, he raised his head and looked at Ian Vista who was sitting on a chair not far away. The latter is a senior engineer of Snecma Group and has participated in the entire process of cooperation projects with China, from negotiation to research and development. Strictly speaking, its 7 months and 23 days. ?Vestal shrugged and replied: "The other engineer named Liu told me that the focus of this version of the M88-2 is to solve the design issues that may affect flight safety, so that Rafale C can have available engines for mass production as soon as possible, so it is not involved The development and testing process went very quickly for extensive modifications to the overall structure. Then they are pretty nice people... ? Dassault continued to flip through the test log, but only halfway through it, the movement stopped: You just said that it did not involve extensive modifications to the design...but I saw that the maximum thrust has also increased by 100kg compared to before? ?Vesta nodded: In order to solve specific flight conditions, which are mainly surge problems at low speeds and severe speed changes, it is necessary to optimize the operating curve of the compressor. Thrust growth is an incidental result of this process and is not the initial goal. And no models increase target is set in units of 100kg Hearing this, Charles Edelsteiner, who had been standing next to him without speaking just now, interrupted: "In fact, compared to the maximum thrust on paper, the most obvious improvement of the M88-2 compared to the previous one is in the flight envelope, which almost completely eliminates the previous additional restrictions on the aircraft pitch angle at the flight control level to avoid surge. " It seems...the test results so far are very optimistic..." ? Dassault closed the logbook on the table in front of him, put one hand in his pocket, and looked at the C01 prototype that had stopped at the end of the runway and was about to turn on the afterburner to take off: I hope the flight test goes well too. Otherwise, it will be troublesome if we activate the backup plan... ?At the edge of the apron, there is another aircraft painted in white and very similar in appearance to the C01. It is the Rafale A01 prototype that completed its first flight earlier. It is also the final backup of the entire project ?After the cooperation between Snecma and China was reached, General Electric, realizing that it had lost its game, immediately lobbied Congress and once again approved the export of F404GE400 engines to France. Hence, the A01 prototype was also pulled out of the exhibition hall and refurbished as a backup just in case. If you look at them separately, most people may not be able to tell the difference between the two aircraft. But if you stop them together, it will be easy to see that the Type C, designed around the M88 engine, is a full circle smaller than the earliest Type A. ?Therefore, if we switch back to the F404 engine, we will even need to reincarnate the A-type airframe that has been abandoned. This workload is quite large. Furthermore, as the basic model, the F404GE400 has a maximum thrust of only 7.2 tons, but the A-type body has a greater empty weight than the C-type. Over and over again, the agility and maneuverability advantages that Rafale hoped to focus on when designing will completely disappear. Hence, the success or failure of M88 basically determines the success or failure of the entire project. ?While the three of them were talking to each other, the C01 prototype on the runway also stabilized its thrust. Then, release the brake. The thrust of 15.2 tons pushes the nose of the aircraft upward slightly, accelerating lightly on the runway. Serge Dassault in front of the window clenched his fists almost subconsciously. Fortunately, the weather is calm. The aircraft reached take-off speed almost in the blink of an eye. The front and rear landing gears left the ground one after another. The entire aircraft deflected slightly with the canards and rushed into the sky at a huge angle. After the test flight work was interrupted for nearly a year due to a "heart attack". finally. Another Rafale prototype has returned to the skies. As a limited improvement that has only been partially designed and improved, there is no need to start the testing of the M88-2 step by step from scratch. In addition to some necessary basic items, just make up for the content that failed in the past. Hence, several difficult tests were arranged for this first day of test flight. For example, thrust transient and left boundary operating envelope tests. These are also two long-standing problems that have been plaguing the M88 engine before. Sometimes the flight has been successfully completed on the high-altitude platform, but abnormalities still occur during the test flight. ??Although it has not caused any major accidents involving aircraft crashes or fatalities, countless engine parts have been damaged as a result. Even test pilots have figured out a way to shut down the faulty engine and then start it in the air. It is comparable to the F14A. ?However, in todays test session, I didnt get the chance to use this stunt. At the minimum flight speeds at various flight altitudes, the steady-state and transition-state performance of the engine are normal. Finally, Serge Dassault, who was sweating a little, breathed a sigh of relief. His thoughts also returned from the sky to the earth. Vesta. ?Dassault turned around and looked back at Ian Vista, who had also stood up at some point: I remember you just said that the focus of M88-2 is to solve safety problems. You mean, there should be more in-depth improved models in the future? Thats right. The latter put one hand in his pocket, half-leaned on the edge of the table next to him, and nodded: China has shown us a complete three-step plan. M88-3 will completely eliminate hidden dangers at the core machine level and restore actual performance to the paper level of M88-1. The M88-4 will redesign some components while maintaining the overall structure unchanged, and try to maximize the potential of this core machine structure. As for the specific extent of this...the Chinese people have not made it clear. After receiving this explanation, Dassault did not answer immediately. Instead, he lowered his head and stared at the cracks in the tiles on the ground, thinking. Cant we complete the latter two processes ourselves? A few minutes later, he spoke again and confirmed to Vesta. At least to M88-3, its difficult. ?Vestal told the truth without hiding anything: As for the third stepit depends on how much our design level can be improved in the next few years Look at it this way. ?Dassault paced back and forth in front of the window: "It seems we need to come up with some bargaining chips to tie up the Chinese people..." (End of this chapter) Chapter 888 It makes sense to install a laser targeting pod on a business jet, right? Chapter 888 It makes sense to install a laser targeting pod on a business jet, right? ? Serge Dassaults voice was not loud when he said this, but several people around him heard it clearly. Everyone is generally open to this matter. Making money is not shabby. ??Moreover, although General Electric has now relaxed the conditions for cooperation, after such a round of repetition, both Dassault and Snecma will inevitably have the mentality of being bitten by a snake and fearing the rope for ten years. At least in the field of military models, we have to think a lot before cooperating with the Americans in the future. Of course, more importantly, todays M88-2 engine already has a relatively obvious Chinese design style. ? Even if General Electric can really change its past and turn around, it will definitely not be easy to continue to develop on the current basis. As for rolling back to the previous version and starting from scratch... ??The French are a little timid, but they are not stupid. As we all know in the field of engineering, if a system is working properly, try not to touch it. ??Although until now, Dassault still can''t figure out how the Chinese people managed to completely reborn the M88 engine in less than three quarters, but since the test results went well, it''s best to let it continue so smoothly... ?The entire Rafale project has consumed too much energy and resources from Dassault himself and Dassault Company, and cannot afford another round of tossing. Therefore, everyone turned their attention to Ian Vista. As the technical representative of Snecma, he is the only one among everyone present who has had long-term contact and technical exchanges with China. Vesta, who was stared at by several eyes, had long been mentally prepared to express his position, so he cleared his throat and said: Judging from what I have learned and seen during this period, the Chinese aero-engine technology should have only been developed in recent years. Wellof course we know that. ?Dassault showed a helpless expression and interrupted Vesta''s speech: And I also want to know the reasons for their rapid progress, but at least for now, we should focus on more practical issues. The M88 engine is very important to Snecma Group, but it is not the most important. After all, there is still the huge sales volume of CFM56 to protect the bottom line. Although after the farce of the past two years, everyone has basically seen through that this "jointly developed" model is basically completely dominated by General Electric, but no matter what, the money that should be allocated is still a lot. However, Rafale is basically a lifeline project for Dassault, at least for the Dassault Aviation division. At present, the sales volume of Mirage 2000 is being crazily squeezed by the increasingly cheaper F16 and Su-27 series, and a new ultra-long-range business jet product line is under development. The entire civil aviation business is in a stage where it is unable to make ends meet. Srge Dassault could not be in a hurry. I know, I know. ?Vestal raised his hand and pressed it down, signaling Dassault to be calm: I want to say that the Chinese people are indeed quite unique in aviation development, especially in the field of aviation development design, but at least for now, their development is still quite uneven. "Although the Chinese have reserved many areas that are not open to us, it is not difficult to find that they are still producing several relatively backward models so far, such as the WS9 that imitates the British Spey MK202, the WJ6 that imitates the Soviet AI20M, and the Soviet P11F300s WP13, imitation PD3Ms WP8 "Compared to the new turbofan engine used on the Su-27 produced in China, and the WP14 that appeared a few years earlier, these engines are completely products of the previous generation, or even the previous era, and are completely behind in technology. , but still not completely eliminated. "The most likely reason for this situation is that they now have one...or several, but not many, very capable R&D teams, so they can come up with several new products with first-class performance, but the overall industry The level is still very low, and there are not enough capable and experienced engineers to apply the advanced technologies in these new products to other models in a short period of time..." So, we can seize this time difference, come up with something they are interested in, and form a community of interests with them by cooperating on projects... just like the Russians did..." It should be said that Vesta has almost grasped the essence of the matter based on the limited things he has seen and heard in the past few months, which is indeed an extraordinary level. The suggestions made are also very reasonable - Compared to the simple form of buyer and seller paying for both money and goods, cooperation in which each takes what he needs is obviously a stronger relationship. ?The typical example is Snecma himself. ??Although they and General Electric had a lot of conflicts over the M88 engine issue, in order to make money through cooperation, no one had ever thought about making trouble on the CFM56 project. The only problem is Well, Mr. Vista. ?Ed Steiner, who had been listening nearby just now, frowned: "You...you can also say us, of course. Is there anything that the Chinese people will definitely be interested in?" ?This somewhat heart-wrenching question made the atmosphere feel cold for a while. In fact, there is indeed a lot of technical cooperation between China and France. But France is France, and Dassault is Dassault. They do not have a platform like the Aviation Industry Group or the Import and Export Corporation that can coordinate the interests of different domestic enterprises. Companies such as Dassault, Snecma, and Thales have a lot of historical connections and have been cooperating for almost half a century, so they can sit down and talk together to slightly coordinate their interests. . But companies like Eurocopter and Airbus obviously cannot take chestnuts from the fire for the benefit of Dassault. And this involves another more macro issue. The size of France as a whole is still too small after all. 550,000 square kilometers of area and 60 million people. And there is also a higher education enrollment rate that is not outstanding among developed countries. In this context, France has not given up its efforts to build a relatively complete industrial system, but it also wants to become a leader in the European integration process. As a result, there are many things that appear to be French. But its actually European. Or of the world. Even American. ?Perhaps there is not much difference at ordinary times, but when it comes to critical situations, it is often unavoidable to be helpless. CFM56 is certainly more advanced than PS90A. But if the latter is in a hurry, they can use their wealth to make transactions. It is useless no matter how urgent the former is. ??Snecma said it didnt count at all. I remember Finally, it was Dassault who broke the silence first: Many years ago, China should have introduced a production license for the Arriel series turboshaft engines? He looked at Vesta: Can you work **** this? ? Turbomeca, which develops the Arriel engine, is a wholly-owned subsidiary of Snecma, so it is naturally better to work within the framework of the same group. You mean Ahaye 1C? ?Vesta nodded: This has indeed happened, but on the one hand they have been able to produce most of the parts independently, and on the other hand...the importance of this project in China seems to be gradually decreasing due to the impact of competing products..." Originally, the Z-9 has been Chinas only domestic and usable helicopter model for a long time, and it still has a certain status within the aviation industry system. ?However, the good times did not last long. Under the promotion of a certain person, Bingfei Group has successively launched two new projects, the 7-ton AC139 and the 10-ton NH90/Zhi-12, which were jointly developed in the past two years. The former is about to deliver its first product to customers, while the latter has also entered the finalization and qualification process. Especially straight 12. ?After the temporary replacement of TV3-117VM, although the appearance is top-heavy due to the enlarged engine size, which looks quite weird compared to the original NH90, and the range has also been reduced, it is still a 10-ton helicopter after all. The operating habits of the front three-point landing gear and side doors + tail hatch are similar to those of the Mi 8 series, which is already equipped with a lot of equipment. Even with great efforts, there is still a certain potential for plateau deployment. She immediately became the new Britney. ??The Navy has even made new requirements for the hangar and helicopter deck area of ??next-generation combat ships. ?Although the army has no money for the time being, like a young lady who has been to a big city, after she has set her sights high, she no longer values ??the honest people in the village. There is very little interest in the Z-9 modified armed helicopter plan. In this way, even if the Zhi-9, which has become Mrs. Niu, has not completely lost its value, at least it no longer needs to use a 4-ton body to undertake the tasks of 6-ton or even 10-ton helicopters as planned in the past. The urgency is naturally not that high... Speaking of collaborative R&D After another period of silence, Ed Steiner suddenly raised his head: I remember that the contact between us and China last year started in the name of jointly developing business jets? Yesbut whats the point? ?This matter was just a reason in the first place. After officially establishing a bridge with the Aviation Development Group, no one mentioned it for a long time. What if...we give up some interests in the Rafale or Falcon projects and bring Thales Group in? ? Ed Steiners mind suddenly opened up: The two Russian-made passenger aircraft currently produced by China have three-person cockpits, and more advanced cockpit equipment will definitely be needed in the future..." Even if it is not needed Thales photovoltaic system is certainly attractive enough Photoelectric system? ? Dassault was a little confused for a moment: Why do business jets need this kind of thing? Lets borrow a name ?Ed Steiner replied nonchalantly: If you have to find a reason... He raised his head and thought for a few seconds: "In order to ensure the safety of VIP passengers taking off and landing in bad weather, it is also very reasonable for business jets to carry a day and night targeting pod to observe runway conditions, or a low-altitude navigation pod to avoid obstacles to avoid accidents like Air France 296... Right?" (End of this chapter) Chapter 889 Pressure from across the ocean Chapter 889 Pressure from across the ocean ?For a project like this that involves the participation of many parties, even if there is a quite special relationship between several companies, there will inevitably be some wrangling before it can be officially started. However, with the help of Dassault, relevant information, or rumors, was quickly and deliberately "leaked" to the Chinese side. After all, its cooperation. If one party has feelings, the other party must also be intentional. So, after Chang Haonan returned to the capital, he didn''t even have time to talk to Academician Hou Xun and Huo Penghua about the feasibility of the "optical beam forming network" idea. He was told this during a routine work report to Ding Gaoheng. thing. Forward-looking terrain mapping and automatic obstacle avoidance system All-weather ground topography observation and target marking system Diffraction head-up display system 17 new optional sensors ensure normal take-off, landing and flight of aircraft in harsh weather conditions with minimum to zero visibility Chang Haonan was a little scratched by the content of this information: It sounds like what Dassault is planning to design is not a business jet, but a tactical bomber Some passenger aircraft or transport aircraft do have the need to operate in harsh weather conditions, but generally speaking, the altitude at which such aircraft normally fly will not involve weather phenomena such as rain, snow, and fog, and there will be no obstacles. . So only the take-off and landing processes with relatively low speeds need to be considered. The solution is also relatively simple. For example, the NH90 and some models of IL-76 will install a multi-channel infrared/visible light camera under the nose of the aircraft to allow the driver to observe the basic conditions of the runway. ??And Dassault''s set of things configured on "business jets" are fully functional and can support the aircraft to fly at low altitudes at night, or to observe ground conditions at an altitude of several thousand meters. The Su 34 next door has the same function. ??And because it is implemented in the form of an external pod, the field of view is even better than the fixed field of view Platan system on the Su-34... When he turned the page again and saw a more detailed introduction, he couldn''t hold it any longer: Isnt this T... just a Damocles targeting pod? Nearly cursed. And a low-altitude navigation pod? I didnt even know the French had such a model Well...allowing aircraft to fly at low altitudes below 100 meters and in low visibility conditions is really business-like..." Obviously, Chang Haonan is still relatively new to shamelessness and still has a lot to learn. Ding Gaoheng nodded: Business jets are just a cover to cover up... The French probably want to maintain deeper cooperation with us on the Rafale project, so they use these things as bait... as bargaining chips. After all, he is two of the five most decent people. ?There are some things that even if the whole world knows what is going on, you still have to live with it in terms of face. For a NATO country to engage in this level of military and technical cooperation with China, if it were completely open, it would be like a slap on the head of the NATO boss. ?It doesnt matter if you even want to turn a blind eye. At this time, it will be beneficial to everyone to give the other party a step down China is now a WTO country, so if we start from the spirit of globalization and engage in civil technology cooperation, there is nothing to blame, right? You still know how to play with capitalism... After a long time, Chang Haonan put the materials back on Ding Gaoheng''s desk and sighed in a tone of shame. ?This sigh of emotion is not only an invitation for cooperation in front of us. ??It is also about some memories before rebirth. It is hard to imagine that France and Germany, which were committed to European integration in the 1990s and openly opposed the Iraq war in 2003, have declined at a rapid pace in the following 20 years and almost completely lost their autonomy. ?Including China, many countries, including China, had pinned their hopes on the "joint European Union and the United States" strategy, which naturally came to nothing. In this life, although the exchange rate of the euro is much stronger, at least compared to the US dollar, it has never fallen below the 1.0 mark, but obviously we cannot relax our vigilance because of this. Independence and external cooperation must be grasped with both hands, and both hands must be strong. Only in this way can we truly be invincible. Have you finished reading? Ding Gaoheng raised his head and looked at Chang Haonan: Tell me what you think In this case, you must express your stance first. Therefore, Chang Haonan immediately replied: We fully support the decision of our superiors! Ding Gaoheng smiled softly, stretched out **** and tapped on the table: You have always played the leading role in this collaboration. So, whether you want to deepen it further depends on your attitude. ?This is where we need to ask for opinions. Chang Haonan also stopped beating around the bush: The other partys conditions... are still attractive, especially the day and night laser targeting pod, which happens to be a relatively scarce technology in our equipment system. Now relying solely on TV-guided and radar-guided munitions is not a long-term solution. So if their demands are not too excessive, I would still prefer to continue to cooperate. ?In this timeline, China has not introduced the Su-30MKK and Su-30MKK2 models, and has not been exposed to the Russian-made "Peregrine E" laser targeting pod. Although a part of KAB500L/KAB1500L was imported for testing, the target aiming part can only be completed by the laser target designator of the ground reconnaissance unit. Not only is it not flexible enough, but it is also difficult to direct targets far away from the front line or even behind enemy lines. So currently, the two TV-guided weapons, KAB500KR and KAB1500KR, account for the absolute majority of guided munitions. After opening the bus interface, it can be directly connected to the JH-7A. ??And having said that, even if you can get the Peregrine E, its performance is really mediocre. ?Even later the Russian army itself introduced legal Damocles pods. The exported Su 30 series almost has it as standard equipment. ?Looking at it this way, it seems that we have reached the same destination through different paths... "As for the detailed conditions, I guess they haven''t come up with a result yet." Ding Gaoheng shook his head helplessly: The news they have disclosed so far is mainly to send more technical personnel to directly participate in the upgrade of the M88 engine. If thats all it is, thats easy to say. Chang Haonan agreed almost without hesitation: The completion and improvement of M88 is the responsibility of Comrade Liu Yongquan, deputy chief engineer of Turbofan 10. What is Comrade Yongquans ability? It happens to be everywhere, and it allows the French to see some new things, but not too muchjust think of it as a practice for him. This description made Ding Gaoheng couldn''t help but smile: Then this matter will be approved in principle. The situation has changed, and I never thought that one day we would be able to guide foreigners in engine design... ??As he spoke, he picked up a pen and wrote something down in his notebook. Originally, todays topic should have ended here. But when Chang Haonan was about to get up, he suddenly remembered something else. ?So he sat back again: Director Ding, I remember that in October last year, Director Luan Wenjie said that there was a marine resource satellite project. After the hardware development phase is completed, a new satellite-based data processing algorithm needs to be adapted. But half a year has passed and he seems to have never contacted me? You mean Ocean One, right? Ding Gaoheng put down his pen, and his joyful expression sank slightly: The hardware development process encountered some resistance. Several hydrology-related sensors needed to be ordered from the United States and Canada, but they were all canceled for various reasons. Currently, only 10-color ocean water color scanners can be produced domestically in a short period of time. There are currently no domestic alternatives for the others, so the Fifth Aerospace Academy is trying to find other suppliers, which has delayed some time. Obviously, the "various reasons" here are just excuses. The real reason must be that someone is obstructing it. Ocean surveillance satellites are indeed too sensitive. After a slight pause, Ding Gaoheng leaned his upper body on the back of the chair and continued: The Americans have been fighting the Soviet Union in this regard for decades, and it is difficult to hide it from them easily. ?Hyangyang-1 alone is naturally unlikely to pose any huge threat. But if it is regarded as the starting point of Chinas ocean monitoring system, then it is not difficult to understand the other partys vigilance. "It seems that the son of our old friend is not very friendly to us..." Chang Haonan''s tone contained a hint of joking, but there was not much pressure to be heard. After all, he has experienced these plots once. ?Furthermore, in this generation, due to the improvement of China''s own development level and the stronger restraint ability of the European Union, the Americans have restrained their actions a lot. No way, its a strategic opponent. ?Perhaps influenced by Chang Haonans attitude, Ding Gaohengs demeanor also relaxed a lot: This year... In fact, since the second half of last year, there have been very frequent actions. Not only in the field of technology, but also in agriculture, and in finance, which is an area where we have always been weak, and we have suffered some losses. It can be considered as expected. Chang Haonan gently rubbed his forehead and replied: Joining the WTO brings opportunities and challenges. If all the benefits are taken by us, we may not be able to join the WTO from the beginning. Thats true Ding Gaoheng nodded, agreeing with Chang Haonan: In addition, since last month, the frequency of U.S. military reconnaissance planes testing our surrounding areas has been increasing. Fortunately, the navy and air force have responded appropriately and handled the situation fairly well..." Hearing this, Chang Haonan suddenly turned his head and looked at the calendar on the wall. March 29, 2001. In fact, considering that the current equipment level of the People''s Army Aviation Force is completely different from that of the previous generation in 2001, it is not certain that anything will really happen. ?However, his mood is still quite complicated. On the one hand, it is inevitable to have some worries. ?On the other hand, I am a little lucky. The right amount of pressure from across the Pacific shows that the timeline is not completely out of control... (End of this chapter) Chapter 890 Teach academicians a lesson Chapter 890: Teaching academicians a lesson The first half of April was generally calm. ?After proving through the principle prototype that picosecond-level pulse laser can indeed achieve controllable non-thermal processing, the most important thing is naturally to start producing an engineering prototype. Since the specific application environment and hardware layout must be taken into consideration, the engineering prototype cannot be simply put up on a shelf like the principle prototype. Its about getting as close to the final product as possible. This also means that the production process will be relatively long. Especially some of the equipment needs to be ordered from abroad. The efficiency of European enterprises can only be said to be understood by everyone. Hence, Chang Haonans project has also entered a tepid stage. ?But this is not a bad thing. After the work intensity of the entire project team decreased, he finally got the opportunity to discuss the idea of ??"phase control of antenna array elements with photoelectric signals" with Academician Hou and Huo Penghua. In the end, several people came to a unanimous conclusion. At least in principle, the idea of ??optical beamforming networks is feasible. What Chang Haonan wants is this "possible in principle". The subsequent problems of system model and system theory can be solved by him. Going forward, the Electronic Technology Group will be concerned about the specific implementation. Originally, Chang Haonan was planning to go to Luzhou in person. ??As a result, I called and learned that Academician Wang Xiaomo will go to Beijing for a meeting at the end of April. It just saves you the trouble of running around. ?Although it is not a serious meeting, it is still a serious academic exchange, and it is definitely not appropriate at the dinner table. So, Chang Haonan simply chose the meeting place in the conference room of the main building of the New Torch Laboratory. You chose this place well. After getting out of the car, Wang Xiaomo tightened her leather jacket, looked around and commented: The environment is good, not far from the city, but not too noisy. Its a place for academics. ??The fifth ring road in Beijing, although most of it is open to traffic at this time, is still a bit desolate overall. ?However, on the contrary, it gives the Torch Laboratory a bit of a paradise feel. Chang Haonan himself is very fond of this place, so he is not modest: How do you say that? Its far away from the academic circle, but close to the academic circle. This is the kind of place youre talking about. This is the first time Ive heard this statement. ?Wang Xiaomo followed Chang Haonan up the steps of the main building: But the summary is really in place ?Walking and chatting along the way, the two soon arrived at the door of the conference room on the top floor. A few days ago, Chang Haonan had already started preparing the required information here. Therefore, when Wang Xiaomo pushed the door open, he first saw several blackboards filled with formulas and circuit model diagrams. This situation should have been more suitable for PPT. But it is too troublesome to make PPT. Leave it to students to do, but students dont understand. You cant let Academician Hou work as a coolie for him, right? So, Chang Haonan was lazy and moved all the blackboards he had written down during the discussions and calculations in the previous days. "This is" ?Suddenly being in a sea of ??mathematical symbols, I am afraid even Newton or Gauss would be confused for a few seconds. ?However, Wang Xiaomo was mentally prepared after all, and recovered quickly. "Last time we met in Nanzheng, I guessed that there must be something hidden in your kid''s head..." While he found a seat with a good view and sat down, he half-jokingly said to Chang Haonan: Come on, lets see what new tricks we come up with! Looking at Wang Xiaomo who was ready to take notes, Chang Haonan took off his coat and then loosened the top button of his shirt: This is a new idea that I only came up with after listening to your introduction last month. ?He said and went straight to the first blackboard: "You told me in Nanzheng that when the phased array radar performs wide-angle scanning, the radar''s transit time and aperture effect will cause the instantaneous bandwidth of the signal to be limited, and sub-array delay or unit phase shifting needs to be used. structure to improve this problem. However, the real-time delay lines of traditional microwave waveguides or cables have large losses, strong dispersion, narrow frequency bands, and excessive volume and total weight. I just happened to be working on a laser processing project recently, which is to use optical fiber links to replace cables to transmit signals, so I was thinking about whether optical fiber can also be used in radar. ??Wang Xiaomo held his chin with one hand and tapped a ballpoint pen rhythmically on the cover of his notebook with the other hand. This is his habitual action when thinking. Simply using optical fiber for TTD is not a particularly new idea. ??While Chang Haonan finished speaking, Wang Xiaomo slowly said: I know that about 10 years ago, the American Hughes Company tried this method, but there were too many photoelectric conversion processes in the middle. In the end, it was said that there was an extra 40 decibels of signal loss, and in the end it was abandoned. Chang Haonan had already guessed that the other party would mention this case and nodded immediately: I have also found information on the project you mentioned. "However, although they used optical fibers for TTD, the process of switching each delay channel still used an electrical switch consisting of multiple lasers plus an n1:n2 fiber coupler plus multiple photodetectors. Each switch structure is A total of 32 groups of photoelectric conversion processes are required, which means it will be noisy." Hearing Chang Haonan hit the point directly, Wang Xiaomos hand holding the pen stopped: So...can you solve this problem? "certainly." The former showed a smile: "So I thought, since we have already considered using fiber optics, it is better to go all the way to the end and build the entire back-end into a set of optical beam forming networks, and finally use photodetectors to demodulate and recover radio frequency or microwave signals to emit electromagnetic waves. In this way, only one electro-optical-electric conversion process is needed to realize an optically controlled phased array radar..." Speaking of this, Chang Haonan turned back and pointed to the blackboard behind him: For example, to switch the delay channels just mentioned, purely optical methods can be used, such as fiber Bragg reflection grating, fiber dispersion prism, or spatial optical path switching. In short, there are many ways to completely avoid those 32 sets of photoelectric conversion..." Using the light control array directly...can avoid this loss problem ?Wang Xiaomo didnt know when he had sat up completely straight: But that involves a new theoretical system... Among other things, the delay models of optically controlled arrays and electronically controlled arrays are very different. This happens to be the part Im good at. ?Chang Haonan was already excited at this time and strode to the second blackboard: Lets first use a relatively simple one-dimensional line array as an example. "Assuming that the number of units contained in each sub-array is ns=N/M, then each unit can be expressed as ail, where i is the sub-array serial number and l is the antenna unit serial number inside the sub-array. In the actual array, each sub-array configuration A delay unit that can provide 2^b1 time shift units. Each unit in the sub-array has a b2-bit phase shifter, which is used to complete the phase shift in the 0-2 phase range..." For any direction in space, the spatial time difference between any adjacent units is =dsin/c, and for the operating frequency f, the corresponding phase difference is =kdsinȡ By the time he got to this point, Wang Xiaomo had already opened his notebook to a blank page and was writing furiously ??Although he is not from a theoretical background, it is not difficult to see that Chang Haonan is constructing a mathematical model of a light-controlled time-delay phase-controlled linear array. As long as it is slightly generalized, it can become a planar array model. "The phased array antenna can not only be regarded as a spatial domain filter, but also a time domain filter whose transfer function varies with different spatial directions. Suppose the signal input to the first unit of the uniform linear array is s(t)= e^(jt), then the transfer function of the optically controlled phased array in the pointing direction is H()={Msin[ns/(2c)]dsin0(-0)}/[sin{(1/2c) ]dsin0(-0)} As the explanation gradually progressed, Chang Haonan began to add some new content on the blackboard from time to time. Some of them were omitted and not written down at the time, and some were newly thought of during the calculation process. The structure of the entire mathematical model gradually became clear. ৡ ??Wang Xiaomo wrote down the last character on the current blackboard as quickly as possible, and then stopped writing. Judging from the total number of blackboards in this conference room, Chang Haonan''s introduction is probably only about half done. ?However, he can now see a lot of valuable information from it. In other words, we only need to determine three key values: the spatial delay operator vector of the array, the beam pointing phase shift vector within the array, and the delay operator vector within the array, to complete the signal model simulation of the optical control array? This is obviously much simpler than he, or any other estimate except Chang Haonan. In other words, even from an engineering perspective, this idea of ??using photoelectric signals to control phase differences for scanning is fully potential to be realized! (End of this chapter) Chapter 891 Multi-band phased array antenna Chapter 891 Multi-band Phased Array Antenna From the perspective of signal processing algorithms, this is indeed the case. ?Chang Haonan took two steps back and stared at the blackboard for a few seconds before answering: But shouldnt this have been known before...? ?Wang Xiaomos question was a bit beyond Chang Haonans expectations. Because he had not expected that the other party or other researchers in the field of radar engineering would focus on this. "Before?" ??Wang Xiaomo turned to look at the blackboards he had just talked about, with some confusion in his tone: But you havent written anything related to this model expression before? NoIm not talking about this before. Chang Haonan waved his hand: I mean...before today. Isnt it a consensus that the mathematical model of an optically controlled linear phased array...or any linear phased array includes three vectors? This question did not receive a response. ??But its not difficult to see the answer from Wang Xiaomos eyes Is it so? ?Chang Haonan originally thought that he had only derived a model expression when the independent variables were known. The result is that tall buildings rise from the ground... ??If left to the world of theoretical mathematics, if he wants to get the complete process, he must first prove that "the model only contains three vectors". Fortunately, the engineering field doesnt really care about these minutiae. As long as it matches the actual situation, it wont be a big problem. So, after this short interlude, Chang Haonan''s introduction went on smoothly. ?Its just that the following content is much more logical in comparison... The pulse signal sent by the radar system will be affected by factors such as target scattering and propagation path during the propagation process, resulting in the time domain and frequency domain broadening of the echo signal. Therefore, in order to improve the resolution, the echo signal needs to be pulse compressed. This process is usually accomplished in the time or frequency domain using matched filtering or correlation signal processing..." ?Talking and talking along the way, and occasionally adding some extra content on the blackboard. Finally, after more than an hour, he came to the last blackboard. ?At this time, Wang Xiaomos writing had already stopped. Compared with the previous part, although the latter half is larger in terms of pure calculation, it is much easier to understand because there is no such exaggerated jump. This also gave him more time to think about some issues in the field of radar engineering. "...The pulse compression output result of the array can be obtained from the above formula through convolution: s(t) after matching the matched filter, the output is s\''(t)=(n=1, N)e^(j ){e^[j2(f(t-(t0-))+u(t-(t0-))T)-e^(j2f(t-(t0-)))]} ?Chang Haonan pointed with his finger to the lower right corner of the blackboard, to the end of all the calculations. Then he turned around, took two steps forward, and sat back at the conference table. I then opened the laptop that had been on the table since the beginning but had never been opened: Based on this model, I conducted numerical simulation calculations on the pulse compression of the optically controlled phased array and the fully phased phased array under a typical situation. He turned the computer 180 and pushed it in front of Wang Xiaomo: It can be seen from these two result graphs that the maximum value of the pulse pressure of the fully phase-shifted phased array is 4.21dB lower than the maximum value of the optically controlled delay array, which means that the signal-to-noise ratio is lost by 4.21dB. "In addition, the 4dB width of the pulse pressure of the sub-array delayed optical array is 5.12ns, the side lobe height is -13.84dB, and the peak time position is 49.9989s; while the 4dB width of the pulse pressure of the fully phase-shifted array is 7.088ns, and the side lobe height is -13.84dB. The lobe height is -26.32dB and the peak time position is 49.9952s. "Therefore, the main lobe of the LFM signal in the fully phase-shifted array is broadened after the pulse pressure, the peak time position deviates greatly, and a certain signal-to-noise ratio is lost. In addition, the spectrum structure of the broadband LFM signal of the fully phase-shifted phased array is no longer a rectangular distribution. , which results in lower-than-expected resolution after pulse compression. ?Looking at the realistic normalized amplitude-time curve on the computer screen, Wang Xiaomo did not speak immediately. ? There is no doubt that judging from the results obtained by Chang Haonan, the optically controlled phased array has mechanical advantages that traditional phased array radar cannot match. Especially in the field of wide-angle scanning, which he had been paying close attention to before. While waiting for the computer to turn on and open the document for a few minutes, Wang Xiaomo had already roughly calculated several results on his notebook. Conservatively estimated, thanks to the broadband characteristics and low loss of optical fiber TTD, the available scanning angle of the single-sided optically controlled phased array will be expanded to 75 or even 80. This is a huge improvement for fixed single-sided or double-sided array antennas. but Its not big enough. Almost as soon as he saw the simulation results on the computer, he had a more radical idea. Mr. Chang. ?Wang Xiaomo put the ballpoint pen aside: What if we dont pursue expanding the scanning angle? Huh? ??? This question made Chang Haonan stunned. You said you needed a wide-angle scan before, and I calculated the results for you, but now you dont need it anymore? What''s going on? ?Seeing the ghostly expression on his face, Wang Xiaomo quickly continued to explain: "What I mean is that since the scanning angle and instantaneous bandwidth are a pair of contradictory indicators, then since the optically controlled phased array radar can achieve a large scanning angle with the same bandwidth, can we also change the idea and achieve the same scanning angle with the same bandwidth? high bandwidth? Hearing this idea, Chang Haonan first lowered his head and thought. Then he frowned slightly. ?Then his eyes flashed. It should be...yes! ?After all, he is not a radar major, and the calculation just now was only a theoretical derivation from the mathematics and physics levels, so his ideas on the application level are actually a bit limited. When he was in Nanzheng before, Wang Xiaomo had been talking about the problem of wide-angle scanning, so his calculation results had been advancing in this direction. But now that the other party reminded him, his thoughts immediately opened up ?The bandwidth of the radar is not the same concept as the bandwidth of the network. It is not a unit of speed, but a unit of frequency. Refers to the frequency bandwidth that the radar antenna can adapt to under normal working conditions. We often say that a radar "works in such and such a band". This band range is the bandwidth. In most cases, the back-end module of the radar does not matter the frequency band. But the adaptability of the transmitting/receiving antenna is very poor. So it will generally show narrow-band characteristics. ?However, as Wang Xiaomo just said, optically controlled antennas can completely overcome this problem. China''s main equipment in the future, whether it is an early warning aircraft or a rotatable double-sided/single-sided array of a ground guidance system, or a four-sided array used on a warship, the demand for wide-angle scanning can be summed up as "it''s best if you don''t have it." ". But broadband is another story. To exaggerate, dual-band or even multi-band detection can even be achieved through the same front! If the scanning angle is kept at 120 or 90. ?Thinking of this, Chang Haonan pulled the computer back to him and started typing on the keyboard quickly. The complex simulation process just now was naturally completed on a supercomputer. Here is just a screenshot of the results. However, if the bandwidth and scan angle are simply calculated, the performance of the PC is still sufficient. ?As time passed, Wang Xiaomo, who was sitting opposite, finally lost his temper and walked around the desk to come behind Chang Haonan, hoping to see the results as soon as the calculation was completed. A series of calculation commands were entered by Chang Haonan, but the calculation process itself did not last too long. The results were quickly displayed on the computer screen. Wellthe broadband performance in different bands will actually be somewhat different. ?Chang Haonan read it quickly and then concluded: "In general, for the S-band and adjacent frequency bands commonly used in search radars, if the search range is controlled at 60, the frequency range can probably cover about 2.7Ghz, which is basically a complete frequency band plus a less Complete band. If you adjust the range to 45, the frequency range can cover the 3.7Ghz level, which is two complete frequency bands, or one complete band plus two less complete bands..." For higher frequency ranges, the available width will be slightly lower. For example, for the X-band, which is common in fire control radars, even if the scanning range is controlled at 45, it can only cover 2.9Ghz ?Wang Xiaomo clenched his right hand into a fist and lightly knocked on his chest. Obviously, this result is a bit too surprising for the old comrades. After a slight pause, he opened his mouth and said: It doesnt matter. Fire control radar has higher requirements for resolution. The pursuit of large bandwidth may not be as meaningful as large scanning angle. We should focus on the search radar. "For example, the sea-based 346 radar, which has almost completed testing, operates in the S-band, but the guidance and command system of the Haihongqi-9 air defense missile works in the C-band. Originally, we planned to install an additional set under the main radar array. Transmitting and receiving antennas, but if the radar can be made to work in S-band and C-band at the same time, this problem can be omitted..." Chang Haonan thought more long-term: "The ship-based four-sided array only needs a working range of 45, so that the radar can even work in the three bands of L, S and C at the same time, such as 1Ghz to 4.7Ghz. In this way, the 346 radar can even be directly used to replace the 517A radar, and a certain degree of Anti-stealth and ultra-long-range detection capabilities The 517A is the model with an antenna shaped like a clothes rack on the back of the 052C/D destroyer. It is an old-timer that has been in service from the 1950s to the 21st century. ?Although the overall performance has lagged somewhat behind, due to the nature of the P-band, it still has certain anti-stealth and long-range warning potential. This is incomparable to pure S-band radar in principle. So it was changed and continued to be used until the later 052D and even 055. But if the 346 radar itself can operate in the L-band, which has properties similar to the P-band, then the demand for 517A will be greatly reduced. ?Wang Xiaomo and Chang Haonan looked at each other and saw the huge potential of this technology in each other''s eyes almost at the same time. (End of this chapter) Chapter 892 Seize the early warning aircraft market Chapter 892: Seizing the early warning aircraft market ??In addition to radar in the traditional sense, the broader application scenario of optically controlled phased array antennas seems to be electronic reconnaissance equipment. Of course it can also be said to be passive radar ?Antenna is not only used to transmit signals. Can also be used to receive signals. In order to adapt to different signal frequency bands, traditional electronic reconnaissance equipment is usually surrounded by antennas of various styles and sizes. Hence, the appearance of electronic warfare units is often relatively... Abstract. ?Especially for electronic warfare aircraft where space is tight. ??If only the sides, back and belly of the fuselage are protruding, it will be considered relatively elegant. Of course, for military models, being ugly is not a problem. The problem is that after paying a huge price in terms of appearance, there are still trade-offs to be made in terms of performance. Unless the carrier platform is really large, it will be difficult to cover all commonly used signal frequency bands given the limited size and weight. ??But if two or even several antennas can be integrated together, it will obviously be a huge benefit for electronic warfare aircraft. ?However, the ecstasy is short-lived after all. A new technology, especially a disruptive new technology, often encounters difficulties from theory to implementation. ?Chang Haonan and Wang Xiaomo were both engineers after all, so they quickly began to consider more specific practical issues. After thinking for a while, the latter spoke first: "In order to implement this multi-band radar, although antennas with large bandwidth operating characteristics are key technologies, other aspects, such as transmitter/receiver design and target recognition algorithms under the interaction of multiple bands, will also take time. Come and develop. So I think the first thing to do now is to build a principle prototype and go through the whole process. The principle prototype must be developed, but the problem is not just technical... Chang Haonan also added: The optical switches I mentioned at the beginning, whether they are fiber Bragg reflection gratings, fiber dispersion prisms, spatial light modulators and controllable reflectors, are all highly precise optical components that either cannot be produced in China at all, or are high-quality domestic products. The rate is very low and cannot meet the requirements of industrialization at all..." Actually, lets not talk about this. Even the most basic optical fiber can only be regarded as solving the problem of localization on paper at best. In actual applications, imported models are still the main ones. ?His team has just begun to produce engineering prototypes of ultrashort pulse lasers, and is naturally familiar with the conditions of these optical or optoelectronic components. Pulse laser processing equipment can barely be regarded as scientific research equipment, and in fact it is only semi-photoelectric. Most of the consumables are still mainly electrical components. The problem of using imported optical fibers alone is not big. ??But no matter how whitewashed the early warning aircraft and search radar are, they are purely military equipment. Even if the Europeans use the spirit of capitalists to sell slings and export with their eyes closed, the People''s Liberation Army may not dare to rely entirely on Western models for such a core component. Moreover, although the two men have been using the 346 radar as an example, in April 2001, the basic version of the 346 has basically completed the national qualification test, including its carrier 052C, which is also close to being designed, and the power system is temporarily and Like the 052B that has already started construction, it uses imported UGT25000. ?With two models of such high perfection, and the current military struggle situation is not optimistic, it is impossible to stop and wait just because there is a hint of new technology. In other words, at the shipboard radar level, the concept of this optically controlled phased array, optimistically speaking, will have to wait until the next improved version of the 346, and may even wait until the second improved version in the future. So, we must find an additional opportunity to conduct a round of technical verification. What if we make an export model? Chang Haonans thoughts are getting wilder: "Let''s take it step by step. Let''s put aside the multi-band issue first. The entire small T-type antenna phased array radar is based on its 150 wide field of view and lightweight and low cost. Moreover, it is not for our own use anyway. The core element is It doesnt matter whether the device is domestically produced or not. Maybe foreign users have their own import channels. Compared to simply focusing on technology verification and research and development, this is at least profitable, and domestic manufacturers or research institutes will have stronger motivation to make local substitutions in the future. Technology, as long as it reaches the stage of making money, it can actually be easily recycled later. If you are afraid that you will see only input but no output, then even if it is a state-funded support, you must weigh it first. ?Furthermore, if an industry only relies on state funding for development, it is actually difficult to say what prospects it has. Therefore, Chang Haonans usual path since his rebirth can be summed up as first opening up the general industrial cycle through key technologies or models, and then going back to gradually improve the overall domestic level. This time is no exception. Small early warning aircraft ?Wang Xiaomo touched his chin, which had turned white with stubble: What about the aircraft platform? Logically speaking, this should be Chang Haonans most professional field. However, he waved his hand nonchalantly: "This is not important." Since the goal is to generate income through exports, lets talk business. Facing Wang Xiaomos questioning gaze, Chang Haonan continued to explain: What we are exporting is not an early warning aircraft, but a separate airborne early warning and control system. Of course, if users are willing to use it, we can also provide MA60 or a complete solution for the C808 platform. "But if users want to be more common between aircraft and civil aviation to reduce logistical pressure, then we are not opposed to cooperating with other manufacturers and moving our early warning system to other people''s models, such as Airbus A320 or regional airliners. , or even a slightly larger business jet. The optically controlled phased array also has another modest advantage, which is that it is not very sensitive to the physical size of the radar. This means that a model echelon of difficult size can be produced at a relatively low cost. Of course, as mentioned before, for an aircraft that is too large, the advantages of wide field of view and lightweight are not obvious, and Chang Haonan is not ready to take advantage of multi-band for the time being. Hence, the upper limit should be about 200 for the Air Police. As for personal use models It is better to run quickly with small steps first. The Air Police 2000 carried by the C909 aircraft is probably the same as the 346, and will not be able to tolerate this latest technology. Airborne early warning and control system ?Wang Xiaomos eyes suddenly changed: Like rieye in Sweden, or...Felcon in the Kingdom of David? ?Philcon of the Kingdom of David ?Although the Ring Project eventually got back the advance payment, the IL-76 was also incorporated into the transport aircraft force after being dismantled. ?However, the Kingdom of David blatantly breached the contract at a critical moment, and also brought personnel from other countries to have close contact with Chinese equipment without permission. ?This matter is not so easy to get over. I wrote it down every stroke in the small notebook. The reason why there has been no action is because there was really no way to directly cause any trouble to the opponent before. But now Felcon is actually a model focused on the international market. There are also model echelons of different sizes. It also mainly sells equipment rather than complete machines... ?This is a serious competitor. So, if we can beat Falcon in the arms sales market... ??Although it is difficult to say that it will have any crippling impact on the Kingdom of David. But at least its an opportunity to vent some bad anger. As for love to set eyes... ?Then I can only say sorry. In this case, we may also need a loud name. Wang Xiaomo said: Its best if its a pun in both Chinese and English. Ive already thought about this. ?Chang Haonan looked at a paper on the computer screen: Its called gaoming. "Um?" ?Wang Xiaomo couldnt understand the reason for choosing this name for a while: "Why?" Gao Ming is the clairvoyant in Fengshen Yanyi, which is consistent with the function of the early warning command system. Chang Haonan replied: In addition, it can be translated directly into English according to the literal meaning. Literally...highlight? Chang Haonan had a pleasant smile on his face: Thats right, highlight (End of this chapter) Chapter 893 No, more advanced Chapter 893 No, more advanced ??This is a meme that scientific research dogs can easily understand. In addition to being used as a verb to highlight, highlight, and emphasize, there are also some academic journals that require authors to sort out the eye-catching key points in the content of the paper and write them at the beginning of the article, which is also called highlight. Even if you have never engaged in scientific research, this word is actually the same as the Chinese name "Gaoming", and it is easy to connect it with the mission characteristics of the early warning aircraft. In short, it fully meets Wang Xiaomos requirements for Chinese and English puns. ?Of course, what the name is, after all, is not the point. For a project with such high new technology content that it is likely to exceed 70%, the most critical thing is to be able to proceed step by step. Otherwise, it is easy to lose focus and end up in a mess. Hence, although this is an almost entirely foreign trade-oriented model, it still needs support from higher-level units. ??It will be difficult to coordinate the power of other systems even if the two companies of Dianke Group and Aviation Power Group can come up with a certain amount of funds. Furthermore, the technology of optically controlled phased array radar will definitely ultimately serve Chinas own national defense construction. Foreign trade models are just a by-product of the technical verification process and serve as a source of revenue and expenditure as well as the collection of user data. Therefore, Chang Haonan and Wang Xiaomo hit it off immediately and compiled a feasibility report as quickly as possible, explaining the application prospects of the idea of ??controlling microwave signals by optoelectronic signals and optoelectronic components from both theoretical and engineering aspects. Then they submitted it jointly. A few days later. Commission of Science, Technology and Industry for National Defense, in the directors office. Ding Gaoheng has been staring at the twenty-page report on the table for a while. That''s right, just look. It is not reading. Because I havent turned a page for about twenty minutes. What''s more, he has read this report over and over again no less than ten times since he got it. Except for the parts other than mathematical formulas, it might be an exaggeration to say that I can memorize them backwards and forwards, but if I memorize them straight on, I guess it wont be a big problem. Before serving as director of the Commission of Science, Technology and Industry for National Defense, Ding Gaoheng was engaged in the research and development of inertial devices and navigation systems for a long time. Although it sounds unrelated, this research direction actually involves dealing with other detection systems including radar. As for the control system and control theory, it can be considered as a specialty. So, he used to think that he knew a little bit about radar. Today, however, he had doubts about this self-perception I seem to... I dont know much about radar either Comrade Xiaomo, Comrade Haonan. Ding Gaoheng sat up straight, looked away from the report on the table, and looked at the two people on the sofa on the other side of the office: I know that a few years ago, the United States proposed a research and development plan for a next-generation destroyer called DD21. A key part of it is DBR, a dual-band radar. Is our multi-band radar... similar to the American DBR? DD21 is actually the later famous DDG1000 Zumwalt class destroyer. It is actually still in the final stage of project bidding. Anyone with a little discernment can see that there is a high probability that the plan proposed by Boeing and Raytheon will win. On paper, the various technical and tactical indicators of this new destroyer are quite advanced. After all, its 2001 Even though the United States in this timeline has suffered many additional setbacks in the military, political and economic fields compared to previous lives, few people still doubt its strength in the technological field. Even the most foresighted person would find it difficult to imagine that the industrial level of the United States would experience an extremely outrageous cliff-like decline after entering the 21st century. If anyone says at this time, the U.S. militarys package of next-generation equipment plans ranges from LHX Comanche helicopters, XM2001 Crusader self-propelled artillery, JSF joint strike fighters, to CG(X) cruisers, and then to DD(X) destroyers , LCS Littoral Combat Ship... all will end hastily or come to an end, and I''m afraid they will be directly regarded as crazy. In short, right now, when everyone is developing new equipment, they will still unconsciously benchmark it against similar concepts from the US military. but ?Chang Haonan is not among them after all. The dual-band radar of DD21 actually combines an S-band and an X-band radar on a common information processing back-end device, which is equivalent to using one set of back-ends to control two front-ends at the same time. Our multi-band radar concept uses the same set of hardware from the front-end antenna to the rear-end I/O equipment to realize the collaborative work of two or more bands. Sofrom a principle perspective, it is much more advanced than DBR. ?This description made Ding Gaoheng''s heart beat a little unsatisfactorily. After all, I am already 70 years old, so I still cant bear to encounter such a big surprise: So, should we transmit electromagnetic waves of several different frequency bands at the same time, or should we arrange multiple sets of transmitters/receivers and then flexibly switch to different bands according to needs? This mainly depends on the specific application scenario. Chang Haonan explained: Because signals of different frequencies can be separated, it can be technically achieved. Its just that transmitting and receiving signals in multiple bands at the same time will put a lot of pressure on the back-end information processing process, so it is more suitable for platforms that are not sensitive to size and can deploy sufficient computing power, such as large early warning aircraft and fixed radar stations. , radars on large and medium-sized ships. For fighter jets, vehicles, or small and medium-sized ships, their back-end processing capabilities may be limited. They can also only work on the same frequency band at the same time and then switch as needed. In addition, even in the latter case, there is no need to set up multiple transmitters/receivers. After Chang Haonan finished explaining, Wang Xiaomo continued to add: The radar front end can be made exactly the same as the previous one by using adjustable frequency-selective permeability materials on the radome. For example, I can transmit X-band and C-band signals at the same time. When long-distance detection is required, the radome can selectively pass through the C-band and absorb the X-band. When precise locking is required, the reverse is done. Originally, according to Wang Xiaomos understanding, for fighter jets, field of view should be more important than bandwidth. Chang Haonan said, however, that the phased array radar of a fighter jet can also be deployed on a rotating base to expand the effective illumination range by changing the angle. However, the ultra-long-range detection capability brought by the C-band is beyond the reach of traditional airborne radar. ?However, the size of the fighter jet makes it difficult for it to process wide-band signals at the same time. ??Its not even just a limitation of computer power. Hence the second concept of selectable frequency. Then...I guess theres nothing to hesitate about. Ding Gaoheng said as he closed the report: Major special funding needs to be approved by superiors before it can be allocated. However, at the Science and Technology Committee level, we can first allocate part of the funds from this years advanced technology research and development fund for your use. In addition, if you need to coordinate units in other systems, you can report it directly to me, or to the new deputy director Li Zhongyi, who is currently responsible for liaison work outside the system. (End of this chapter) Chapter 894 Pave the way for the future Chapter 894 Paving the way for the future After talking about business, Chang Haonan and Wang Xiaomo were ready to leave directly, but after a slight hesitation, Ding Gaoheng said he would let them stay for a while. Just when the two were confused, the latter picked up the phone on the table and dialed a number. A few minutes later, a middle-aged man with a stocky build, a kind face, and hair that was the envy of his peers knocked on the door and walked into the office. Director Ding, are you looking for me? "right." Ding Gaoheng raised his hand and gestured in the direction of the sofa: These two are Chang Haonan, the chief planner of the Aerospace Power Group, and the deputy general manager of the Electronic Technology Group and the director of the overall research institute. Under normal circumstances, when introducing multiple people, they must be introduced separately. ?However, the age difference between Chang Haonan and Wang Xiaomo is indeed too big. If you have heard either of them before, it will be difficult to mistake them. In fact, before Ding Gaoheng opened his mouth, the two of them had already guessed the identity of the visitor. So he had already stood up politely. Sure enough, Ding Gaoheng continued: This is the Li Zhongyi I just mentioned, Deputy Director Li. Hello, Deputy Director Li. Hello everyone, Ive been seeing these two great names for a long time ??Li Zhongyis face is relatively round, and he is a little fat. When he smiles, his eyes hidden behind his spectacles almost completely narrow into slits: In 1997, Academician Wang was awarded the Ho Leung Ho Lee Foundation Award. I happened to be the person in charge of Yizheng Chemical Fiber at that time, and I was sitting below..." As for Professor Chang, before I took up the post of the Science and Technology Commission last month, I heard my colleagues from Huaxia Petroleum say that he helped a lot in the bidding process for the West-East Gas Transmission ??The level of this opening is quite high. ? Even if you know that the other person is being polite, but what they say is reasonable and well-chosen, it is easy to close the distance between you and your heart. Cant say its a big help. Ding Gaoheng shook hands with the other party: I just helped make several mechanical models under typical geological conditions This is not a self-effacing statement on his part. In fact, there could have been further cooperation between Torch Laboratory and the China Petroleum Pipeline Bureau. As a result, during the project process, a series of new topics such as manifold learning algorithm and subsequent desert modification and remote sensing satellite systems were inadvertently introduced. The result is that although the other party is interested, Chang Haonan really does not have enough manpower. Having to put it aside for the time being. After a brief exchange of greetings, the three of them sat down on the sofa one after another. Ding Gaoheng, who specially called Li Zhongyi, spoke first: Ive thought about it and think it would be more appropriate for you to directly address the specific needs of the project just now. When this sentence came out, the other two people didn''t care. But Li Zhongyi, who was sitting next to him, suddenly flashed his eyes: I dont know...what specific needs do you two need? I will do my best to support you! Looking at the opponent''s posture, Chang Haonan and Wang Xiaomo had some guesses about the current situation. ?So, it took about forty minutes to explain the general situation to Li Zhongyi. After leaving Ding Gaohengs office, the two walked side by side on the sidewalk leading to the gate of the Science and Technology Commission. Comrade Haonan, Director Ding is paving the way for you... Wang Xiaomo was the first to break the silence. "Um?" ?This sentence made Chang Haonan stunned, and even subconsciously stopped and looked at the other party. ??I found Wang Xiaomo showing a meaningful smile, and also stopped. Ding Gaoheng was planning the departmental work after the Science and Technology Commission, which Chang Haonan could see The former has served as the deputy director of the Commission of Science, Technology and Industry for National Defense since 1982. If calculated up to 2003, it is equivalent to being in charge of the national defense industry for 21 years. This is an extremely special situation. According to the original timeline, the director of the Science and Technology Commission should be replaced at the end of 1996. ? It was only at the end of 1996 in this life that the aviation industry was undergoing drastic changes. In order to ensure the consistency of policies, his superiors allowed Ding Gaoheng to continue to maintain his original position. ?For this reason, they did not hesitate to establish the General Armament Department in advance and found a place for General Cao Gangchun. Originally, this situation should be temporary. When the situation stabilizes, the people who should be replaced will still have to be replaced. ?As a result, no one expected that this stage of drastic change was not a movie but a TV series. After it started, it would be one after another without ending. This situation is naturally something that superiors would like to see. So in order to continue to maintain policy coherence, the entire leadership team of the Science and Technology Commission did not move in 1998. Dante Gaohengs age is there after all. I will be 72 years old in 2003. ?Either retire, or raise half a level and find a job to use your spare energy. In short, it is impossible to continue to be in charge of the Science and Technology Commission. However, if a department has not changed its leader for more than ten or twenty years, its working habits and behavior will inevitably be influenced and shaped by this person. ?Especially, the Science and Technology Commission is still a semi-military unit. Hence, Ding Gaoheng has gradually downplayed his own sense of existence in the past two years. Otherwise, it would just be a matter of liaising with other departments, and there would be no need to hire a deputy in charge of this work. ?However, Chang Haonan has not considered the angle Wang Xiaomo just mentioned. Looking at the shocked Chang Haonan, Wang Xiaomo put his hands behind his back and started walking again: These three new deputy directors of the Science and Technology Commission, you should have had direct business contact with them, right? ?The former thought about it carefully and found that it seemed to be the case. Since last year, the leadership positions of the Science and Industry Committee have undergone a round of major changes. The deputy directors were replaced by Zhang Hongbiao, Luan Wenjie and Li Zhongyi, who I just met today. Two are transferred from other systems, and one is from within the Committee of Science and Industry. You should know that from 1996, when he first came into direct contact with the Science and Technology Commission, he continued until this year. In the past five years, most of Chang Haonans work has been directly reporting to Ding Gaoheng. So the previous three deputy directors, he was basically only familiar with Huai Guomo, ?In the past six months, I have had direct contact with all three new employees at the working level. Especially Luan Wenjie and Li Zhongyi. ??This is most likely not a coincidence, but Ding Gaoheng''s intentional arrangement. In recent years, your role in the defense industry and even the entire industrial system has been visible to the naked eye. Wang Xiaomo continued. It cant be like this As soon as Chang Haonan spoke, he was interrupted by the other party: This kind of thing is seen by me, other colleagues, Director Ding, and superiors. You know it in your heart, so there is no need to be modest. But no matter how capable a person is, he still needs a suitable platform to have room to perform. Of course. Chang Haonan nodded sincerely: If Teacher Du and Director Ding hadnt dared to give me a chance, I wouldnt have been able to achieve any great results on my own. So ?Wang Xiaomo straightened the messed up gray hair on his head: Director Ding, or...maybe even a higher-up leader, wants to ensure that you have a suitable platform to display your abilities in the future. Hearing this, Chang Haonan suddenly had a clear idea. The main thing is that you are too young. The two people came to the car, but did not get on it immediately: On the one hand, in the state-owned enterprise system, age can still be handled on a special basis, but in the administrative system, it is impossible to raise it so quickly. It is too troublesome and against the rules. "On the other hand, the normal development trajectory of researchers is that by the time they are around 50 years old, they have accumulated enough achievements and their energy and brainpower can no longer keep up with the high-intensity front-line scientific research work. At this time, they will switch to the administrative route and continue to perform. Advantages of experience. It turns out that your kid is not normal at all. You have accomplished what others have done in their lifetime before you were 30 years old. But if you were to switch to administration directly, it would be a pity... ?Wang Xiaomos tone was filled with emotion: In short, no matter who among the three becomes a regular employee in the end, one of the most important tasks must be to cooperate with your work like Director Ding. "Getting used to it early will be good for you, them, and the entire Science and Technology Commission..." ?Chang Haonan felt his temples twitching. Stimulate. Its so exciting. ?Lan Xinzhi came here once before before he went to take charge of the Equipment Industry Department. But that is just a director after all. this time I can only say that its really a bit too much. There has been a joking saying before that Chang Haonan is the "non-staff deputy director" of the Science and Technology Commission. He was worried about this for a while. After all, organizational things are sometimes not suitable to be joked about casually. But now look It seems to be a bit unfounded ??This is to ask him to work in the direction of "non-staff director"... (End of this chapter) Chapter 895 status in education Chapter 895 The status of education ?Although the principle of optically controlled phased array radar is very new, in the final analysis, it is still within the scope of the radar industry. Hence, most of the specific research and development work must still be left to the professional counterparts of the Electronic Technology Group. This is of course good news for Chang Haonan. It can reduce a lot of burdens. It is true that he is a workaholic, but he is not a masochist. If you can delegate non-critical specific tasks, you will definitely not refuse. Otherwise, it would be impossible for one person to handle multiple tasks at the same time. ?Furthermore, Chang Haonan doesnt even need to worry too much about external publicity this time In addition to being an expert in radar systems, Wang Xiaomo is actually an innate propagandist. In 1988, when he was still working in the 38th Institute of the Ministry of Electronics Industry, he relied on his sharp tongue and a radar model with only a brochure and no prototype, and he managed to steal 50 million from abroad. Investment comes back. You should know that the financial allocation for that model is only 20 million yuan. Of course, the research and development must have been successful later. Customers are also very satisfied. Painting cakes is not offensive in itself. ?Of course, some people only paint cakes but dont let people eat them. Thats another matter. In between the two projects, Chang Haonan finally got a few days of free time. Just when he was about to open the mailbox that was often crowded to see if there was anything interesting happening in foreign academic circles recently, half of his head suddenly poked his head in through the open door of the office. "teacher?" is Li Yabo. ?Chang Haonan had no choice but to move his attention away from the web page that was still spinning ??After experiencing many email explosions, Tang Lintian specifically asked the schools information technology department to allocate extra space to his mailbox. However, due to computer performance and Internet speed, it inevitably consumes a lot of time every time you open your inbox. Teacher, I received an invitation! Li Yabo walked in quickly and said excitedly. ?However, Chang Haonan was a bit unable to react when his student suddenly said such a sentence. Uh...you sit down first. After gesturing for Li Yabo to sit down, he realized what the other party was talking about: The invitation...is an invitation to participate in the C808s maiden commercial flight? In fact, Hufei had already mentioned this invitation to Chang Haonan, but he said at the time that he did not want to go back and forth, so he only attended the ceremony to celebrate the successful completion of the certification test flight last year. Later, the first delivery of the C808 was delayed due to delivery problems with engine parts, and the first commercial flight has been delayed until now. Chang Haonan almost forgot about it. "right." Li Yabo took out a beautiful envelope from his schoolbag with a happy face and handed it to Chang Haonan: So Id like to take two days off from you next week. The envelope has the two logos of China United Airlines and Hufei Group printed side by side. Due to the influence of "the military is not allowed to do business", United Airlines is currently separated from the Air Force system, but it has not yet joined China Eastern Airlines, but is temporarily operating independently in a somewhat awkward form. Estimated to be waiting for the next round of restructuring of the civil aviation system. ?However, it is precisely because of its independent operation that this airline is more daring to take the lead in many places. ?For example, the C808 printed on the lower right corner of the envelope was painted with complicated Olympic bid-themed paintings. Following closely in the footsteps of Qiong Province Airlines, this is the second batch of airlines that began to use large-scale fuselage painting. ?Because Chang Haonan has no regular schedule and often travels for long periods of time, Liu Chenchen is responsible for the Torch Laboratory''s leave requests and daily work such as approving small funds. Today, Li Yaboti came to see Chang Haonan. It was obviously just a way to ask for leave. ?The main purpose is probably to report to the latter the fact that I was invited - Even though the laser processing project has not yet been implemented into specific production fields, Li Yabo published a Nature article as the first author at the beginning of the year. ?These days, even in the eyes of companies, exchanging a sum of money for a paper in a super-top journal is definitely a huge profit. You should know that, excluding the three short reviews, in the whole year of 2000, Chinese scholars only published a total of four papers in Nature. ?The exposure alone and the content you can add to your year-end review are worth the price of admission. Not to mention that this paper can also play a role in misleading competitors. So, as one of the main suppliers of large parts of the C808 airframe, it is completely normal for Haofei Group to send an invitation letter to Li Yabo. Its easy to say, you can arrange the time yourself. ?Chang Haonan returned the envelope to Li Yabo: Take more photos and post them on the publicity wall of our laboratory. At this moment, he suddenly remembered a series of short videos he had watched in his previous life. It is the one who uses cats and dogs to refer to tutors and students. There is an issue in it, which is a comparison between "before the publication of Nature" and "after the publication of Nature" - After posting Nature, even if you fall asleep in the group meeting, the teacher has to tell others to shut up so as not to disturb the rest. Of course, the situation in Li Yabo''s Nature article is a little different, but in any case, Chang Haonan is relatively relieved about him. Our laboratorys promotional wall still lacks materials? Li Yabo was so shocked that his hand movements stopped: "You... just show it off casually, don''t you just want to make others'' jaws drop?" Thats different. ?Chang Haonan picked up the mouse and returned his gaze to the mailbox page: In the laboratory, its not just me. Only when everyone shows results can we say that the overall level of our laboratory is very high. Furthermore, the name is my content, and others have already seen it too much. Even if I put up a new one, not many people will pay attention..." Facing Chang Haonans inadvertent introduction to Fanxue, Li Yabo didnt know how to react for a moment: Thats alrightIll try to take a better picture Immediately afterwards, he picked up his schoolbag, turned around and left Chang Haonan''s office. Its pretty good... Looking at Li Yabo''s back, Chang Haonan remained calm on the surface, but he was still happy in his heart. ?His students can receive such invitations in an independent capacity, which undoubtedly adds glory to him as a teacher. To be honest, although Chang Haonan is not yet an academician, his status in the Chinese academic circle has basically come to an end. But for the professor''s job, he can only be considered a fledgling, and there is still a lot of room for improvement. After all, recruiting disciples often depends on appearance. Some students, who pose no threat to teachers in academia, will disgrace teachers in the education world. Fortunately, these two students in his first year were pretty good ??The doctoral student Wang Jie also wrote the reports he submitted every month very carefully. ? Its just that shipbuilding is a long-term project after all, so we havent produced particularly convincing results yet. (End of this chapter) Chapter 896 Ill be the editor-in-chief Chapter 896 I will be the editor-in-chief After sending Li Yabo away, Chang Haonan, who regained his good attitude, enjoyed the warm sunshine of early spring while starting to check his emails again. ?Now, almost a year has passed since he and Perelman published the paper proving the Poincar conjecture. The heat on this matter has also cooled down a lot. ?However, the term "popularity" ultimately refers to the media. ?Although there is also a saying and phenomenon of pursuing hot research directions in academia, unless it is a field such as biology or materials where the results are relatively short and fast, the significance is really limited. So overall its quite restrained. On the other hand, compared to Perelman, who has been almost completely missing, Chang Haonan still has some traces in the past year. Therefore, many institutions, scholars or students will still send emails to this mailbox. In fact, this also includes Perelman himself. ?Although he is basically missing from the outside world, his connection with Chang Haonan has never been broken. ??In addition to the usual exchange of mathematical inspirations, perhaps because they have realized their long-cherished wish to solve the Poincar conjecture, the content of the emails exchanged between the two also contains a lot of content that has nothing to do with research - ?Music, life, art, literature and even philosophy. ?Perelman is indeed a genius in the literal sense, and he has some experience in these fields. ?Although Chang Haonan is not a professional, he is still a person who has experienced the Internet era. It is not a big problem to be a listener and a fan. In short, they act like they have been friends for many years. ?Through these daily email exchanges, Chang Haonan also learned a lot about the other party. As a Jew, some of Perelmans relatives chose to immigrate to the Great Patriotic State after the collapse of the Soviet Union, but he himself chose to stay in Russia with his mother after traveling around the West. ?Perhaps this is one of the reasons why the other party is usually taciturn. ?For example, there is an email in Chang Haonan''s mailbox right now that he received last week, asking if he knows how to remove the fishy smell from fish soup... ?Of course, not all emails have such daily content. ?Marian Mirzakhani, who had contacted him before and expressed her desire to come to Torch Lab for graduate school, but was rejected out of hand, sent another email nearly a year later. She first said that she had transferred from a master''s degree to a doctorate at Harvard University, and thanked Chang Haonan for his encouragement and support last year. Immediately afterwards, I asked Chang Haonan below about the feasibility of a research route, that is, whether it is possible to reversely use the idea of ????the Poincar conjecture proof process to project the interface tracked in the three-dimensional or two-dimensional space into a higher dimension. space to be processed. ?Concerning Mariam Mirzakhani, Chang Haonan actually didnt take it seriously when the other party sent her an email for the first time. ?However, later he vaguely remembered that this woman seemed to be the first female mathematician to win the Fields Medal in her previous life. The research direction seems to be geometry. Dont let me take my research interests astray... Chang Haonan looked at the content in the email and thought helplessly. Even if they are both geniuses in the field of mathematics, different people have different specific talent directions. Mirzakhani can make outstanding achievements in the fields of hyperbolic geometry and symplectic geometry, but it does not mean that she can reach the same height in another direction. ?But, no matter what. Since others asked the question sincerely, Chang Haonan didn''t mind answering the question. After all, firstly, he happens to be free, and secondly... ?This problem is really his area of ??expertise ??It refers not only to topology, but also to the numerical calculation methods that he had been studying earlier. [For solving this type of problem, you can try to learn about the level set method in the field of applied mathematics. During the numerical simulation of multiphase interfaces, this method is usually used to circumvent the parameterization process and directly use the Cartesian grid to solve the problem. It is used to calculate curves or surfaces that change with time. However, from a theoretical mathematical perspective, this method still has the problem of non-conservation...] At the beginning, Chang Haonan just wanted to briefly introduce the level set method itself to the other party, as well as some ideas for solving non-conservation problems in engineering fields, such as speed reconstruction of the level set method. But as he wrote, he actually came up with some ideas. So he immediately stopped typing, took out a piece of scratch paper, and began to calculate step by step. However, the peaceful time did not last long. ?Just when Chang Haonan felt a sense of hunger in his belly, he decided to go to the canteen and order cumin duck legs for dinner. The phone on his desk suddenly rang. is the white one. ?This made Chang Haonan, whose nerves suddenly became tense, relax a little. Outside phone calls. Generally its not anything particularly fatal. After calming down, Chang Haonan picked up the phone receiver. Professor Chang, you are well! ?Yuan Xiangya''s voice came from the other side. Dean Yuan? Chang Haonan''s brain was running rapidly, and he quickly guessed the purpose of the other party''s call to him. ?Perhaps just after the Poincar Conjecture was proved, he once suggested that Yuan Xiangya could establish a comprehensive natural science journal like Science or Nature as a benchmark and representative of Chinese academic journals. The other party also invited him to serve as the editor-in-chief of the journal. Todays phone call is probably about this matter. Is your journal already ready? Professor Changs words are obvious, right? Yuan Xiangyas words contained an unstoppable smile: "You are the editor-in-chief of the Journal of the Chinese Academy of Sciences. If you really want to say it, this is the journal for all of us..." Can you tell me the specific situation of the journal? ?Chang Haonan did not continue to be polite, but went straight to the topic. Mainly because he was really hungry. ?There is no large-scale takeout industry these days. If you find someone to take food out, it will be hard to come back. "certainly." Yuan Xiangya replied: At present, it has been initially determined that the journal will be published quarterly, with paper and electronic versions published simultaneously. In principle, submissions in both Chinese and English will be accepted, but only the English version will be published regularly, and the Chinese version may be published irregularly in the form of special issues. The editorial department operates independently of the institutes of the Academy of Sciences and operates in parallel, and is only responsible to the Academician Conference and the Presidium of the Academic Division ? It can be seen that in order to avoid some long-standing abuses in the academic circle as much as possible, the Academy of Sciences has set a fairly high level of independent authority for JCAS journals. Coupled with Chang Haonan, the "externally hired" editor-in-chief. It can be regarded as a great effort. Considering that establishing Chinas own academic system is one of Chang Haonans goals, he naturally has no reason to refuse this job. Therefore, after listening to Yuan Xiangyas introduction, Chang Haonan immediately asked: Dean Yuan, when do you plan to publish the first issue of this JCAS journal? Before he officially takes office, he must know when the DDL of the task is. The first issue is in the third quarter of 2001. It is planned to be between the end of June and the end of August. Of course, the specific time depends on your work arrangement. If the manuscript request process goes smoothly, it is not impossible to do it earlier..." With the gradual promotion of electronic journals, the publication dates of major publishing houses are getting earlier and earlier. Many monthly magazines are even released 4-6 months in advance. In comparison, JCAS only published the third quarter in June, which is already relatively slow. Also, Professor Chang. Seeing that Chang Haonan did not reply immediately, after a slight pause, Yuan Xiangya continued: After all, we are a brand-new journal, and this first issue we have to make sure it gets off to a good start, so see if you can Today, Chang Haonans name is still well-known in the international academic community. ??If you just serve as editor-in-chief, it may not attract much attention. But if a year later, he publishes an article as the first author, it will definitely be big news. Is this... Chang Haonan wanted to say that he needed to think about what to write before replying, but at this time, out of the corner of his eye, he saw the several pieces of draft paper on the table that had just been filled with his writing. Okay, I happen to have a fairly mature idea on hand, and it should be completed soon. He replied decisively. Yuan Xiangya was overjoyed: Then we will wait for the good news from Professor Chang... After hanging up the phone, Chang Haonan took off his coat and sat back on the chair. He first called Yao Mengna and asked her to bring him a dinner. Next, open a new Word document and enter the title of the paper you just thought of: Aconservativelevelsetmethodfortwophaseflow (a conservative level set method for two-phase flow). (End of this chapter) Chapter 897 It’s time to give the industry a little shake again Chapter 897 Its time to bring some small shock to the industry again... ?In the email sent just now by Mariam Mirzakhani, she mentioned the idea of ??"reversely using humans to prove the Poincar conjecture." But in fact, if I have to say it, the level set method is closer to the inverse manifold learning algorithm. ?Of course, this is not actually the case, but it can be summarized in this way. ? Manifold learning algorithm processes high-dimensional data into low dimensions, making it easier for humans to understand. The level set method projects low-dimensional data to high dimensions to facilitate computer operations. In the field of numerical computing, this is a "new" algorithm that was only proposed in the late 1980s, but its application scope includes but is not limited to liquid atomization, evaporation, combustion, surface material calculation, image recognition... In short, it is similar to manifolds. Learning is almost all-encompassing, so it was quickly promoted to various fields. Including TORCMultiphysics, several typical level set methods have also been introduced in the official version. But the problem is that the current level set method, even after improvement, can only achieve "close" conservation within a specific interval. This is a very troublesome question. Especially in its main application areatwo-phase flow calculations. Because in most cases, the two fluids involved in two-phase flow problems can be regarded as mutually immiscible, which means that the method used must effectively maintain the mass conservation of each phase. Hence, the current level set algorithm is prone to violent oscillations and even divergence in long wheelbase time calculations This should be the best part of the level set algorithm. For example, in the previous process of designing the turbofan 10 engine combustion chamber, Chang Haonan combined the fluid volume method and the level set method to calculate the dispersion behavior of aviation fuel after leaving the atomization nozzle. The result... Useful, but not much. Compared with the relatively "simple" single-phase fluid calculations in the compressor and turbine parts, the project team received the least guidance in the design process of the combustion chamber and was forced to adopt the old method of combining a large amount of experience with pilot tests. This also results in more than 60% of the time and money spent on component-level testing. Fortunately, thanks to the limited volume of the small bypass ratio aviation engine combustion chamber itself, the duration of the diffusion process is not particularly long, so the calculation results are not too shocking, and the performance indicators pursued by the turbofan 10 It''s really low compared to its superior overall design, so it didn''t affect anything in the end. But if we pursue larger models with more advanced data in the future, behemoths like GE9X. Or another application scenario, rocket engine Whether it is liquid fuel or solid fuel, since rocket engines have to carry all their own propellants, they rely much more on the combustion-injection process than aerospace engines. ?Then this conservation problem still needs to be solved. ?Of course, since the title of this paper is called "A method of...", it means that it is definitely not a theoretical solution to both the symptoms and the symptoms. It is only applicable in certain specific application scenarios. ?However, even so, it is a huge improvement for the current level set method. [...This paper will propose a conservation level set method to deal with two-phase flow problems with divergent free velocity fields, and in the process develop an efficient method for processing Robin boundary conditions on irregular interfaces, combined with the phase analysis of the interface Variable solution method is used to consider the influence of liquid shape and internal circulation on heat and mass transfer...] First assume any region , and its sub-regions 1 and 2, and 2=/1. is the interface that divides , and a regularization function (usually a smooth Heaviside function) is constructed to implicitly represent , so that when passing through , quickly changes from 1 to 0, and in the sub-region 1 , then there is 1, and in the sub-region 2, there is 0, so is generally set to the 0.5 level set of . In the calculation, we hope that the shape of the interface can be maintained even in the presence of small disturbances... Time passed quickly as Chang Haonan''s hands were tapping rapidly on the keyboard. ?However, after about twenty minutes, Chang Haonan stopped typing. After thinking for a while, he took out a floppy disk, copied the document he had just written into it, then got up and went straight to the computer room. In fact, the method he developed is not mathematically complex. It is essentially a re-initialization process that repairs the value in the level set equation by solving a stable solution of a viscous term in order to maintain conservation. The reason why no one has ever touched upon it in the past is because it is difficult to implement in terms of specific calculation methods. ?For example, the traditional meshing method is difficult to adapt to the high-speed changing two-phase fluid on the Cartesian grid. But for Chang Haonan, who first focused on numerical calculations after his rebirth and led the entire process of TORC Multiphysics software development and algorithm design, this was not a problem. According to his estimation, after the introduction of the finite element discretization method with adaptive grid, the calculation efficiency can still be basically guaranteed. ??Just if you want to operate it through non-independent programming, but a simple form of graphical interface interaction, then you probably have to wait until the next major version update of TORCH Multiphysics... ?Its just that This is also a good opportunity. Chang Haonan, who was typing the code according to the content of the paper, thought to himself. It has been almost three and a half years since the initial trial version of TORCH Multiphysics was released. ?As for software, as long as you sell it, the code cannot be hidden no matter what. ? Even if Chang Haonan created three versions with different thresholds, at most it would only delay the process to a certain extent. After all, there are tens of thousands of people who have access to the professional upgraded version of the software. Once the base is large, it is expected that the news will leak out. ?Furthermore, after all, competing products are not just for free. In short, starting around 2000, software such as Materials Studio, ANSYS Fluent, and COMSOL Multiphysics also began to catch up in terms of computing efficiency and performance. Although there is still a distance from the pioneer TORCH Multiphysics in terms of overall performance, in their respective fields of expertise, there are already Qualifications to compete. Although the latter still firmly occupies the top spot in market share thanks to its wide casting net in the past few years and the numerical calculation services provided by Torch Group, its advantage will definitely become smaller and smaller in the long run. Therefore, the work plan submitted by Torch Group in February included a new major version update expected to be launched at the end of 2001 or early 2002. ??It is just right to introduce the Cartesian grid and this new type of level set method. Its time for you to feel fear again ?Chang Haonan pressed the Enter key with a snap, then leaned back in his chair, looked at the calculation process displayed on the screen, and said to himself. However, at this moment, a curious female voice suddenly came from not far behind him: Uhwhat fear? At that moment, Chang Haonan felt that his blood ran cold. ?Five years since he was reborn, he has only been unconsciously hit once, and he was caught red-handed. Don''t ask, just ask: a man will be a boy until he dies. ?Chang Haonan tried his best to hold back his serious expression, and then turned around. ??Saw Yao Mengna, wearing a light pink woolen sweater, walking in from the door. fine. At this distance, she should have only heard a few fragments of words. "nothing." Chang Haonan replied calmly: I mean, you cant be afraid just because the research direction is difficult. Wellthats true. ?Yao Mengna really didnt know the reason and was easily put off. ?Moreover, he then took the initiative to change the topic: I just came back from the cafeteria, but I couldnt see you in the office, so I guessed you were in the computer room. The lunch box is hung on the doorknob of your office. Dont forget to eat it after youre done. ?This situation made Chang Haonan suddenly remember the scene when he saw Yao Mengna for the first time after he was reborn. In the old computer room, there was also a session where everyone had lunch together. Its just that Zhang Man seemed to have bought the lunch box at that time... For a moment, Chang Haonan couldn''t help but fall into memories. Professor Chang? Yao Mengna looked at Chang Haonan, who was suddenly distracted, and called out tentatively. "oh" ?Chang Haonan woke up suddenly, and then glanced at the computer that was doing calculations. It should take some time before the results are available. Forget it, lets go and eat now After speaking, he stood up, put on his clothes, and left the computer room with Yao Mengna. (End of this chapter) Chapter 898 Professor Chang published another paper? Chapter 898 Professor Chang published another paper? This paper was relatively short and quick, and it took less than a week to complete. After all, this is what Chang Haonan plans to introduce into TORCH Multiphysics in the future. Except for the mathematical derivation part, it involves at most some calculation principles, and it is impossible to write down all the specific implementation details. ?That would be commercial espionage. When the time comes, someone robs me first, and then we will check. Hey! Leaked by my own boss. ?That would be funny. As for submission In fact, there is no need to submit an article. After all, the journal Journal of the Chinese Academy of Sciences has not yet been officially launched, and the publishing house has only just been completed. ??And Chang Haonan himself is also the editor-in-chief. For this reason, the release date of the first issue of Journal of the Chinese Academy of Sciences is almost one month earlier than expected. In fact, although new journals will basically ask big names to serve as editor-in-chief in their early stages, and at the same time ask them to publish some papers to increase the number of citations and influence, in most cases, these invitations are not enough. The papers coming here are mainly reviews. First of all, this is because as long as the person who writes the review is famous enough, the number of citations will generally increase rapidly within a short period of time after publication, much faster than that of ordinary papers with the same impact factor. The second reason is that for scholars with a certain reputation, reviews are relatively easy to write and do not involve any research results. After all, high-level papers are not a big deal, and it is difficult to say that they will be written for you immediately after being commissioned. ?Of course, there is actually another point. Even for most big-name academics, "publishing a paper in a journal of which you are the editor-in-chief" is often considered to be a scam, and may also attract criticism from academic opponents. In short, there are not many honest people like Chang Haonan who really regard heavyweight results as hair extensions... ?However, there is another practical problem before him. JCAS, or the entire academic journals in China, are now in a state where few people pay attention to them. ??Moreover, these days there are not as many media outlets that specialize in academic fields as later. So even if Chang Haonan publishes a paper directly on it without making any noise, it is likely that he will not make any waves. so It has to be arXiv. As a preprint website, publishing results in advance on arXiv will not affect normal submissions, but it can attract the attention of many researchers who are paying attention to this direction. Completely meets Chang Haonans needs. ?So, after checking that the content was correct for the last time, he opened the website as usual, and then uploaded the completed document... At about the same time. The other side of the ocean. Columbus, Ohio. Ohio State University. ? Senior researcher Harold Huang holds a freshly opened sandwich in his left hand, and with his right hand controls the mouse to click to enter the arXiv web page. In fact, as an engineering technician who mainly studies high-order numerical simulation formats, there is actually very little content in arXiv that interests him. ?However, after last years exaggerated wave of popularity, arXivs influence in the mainstream academic community has also increased a lot. Although everyone feels that it is unlikely that another person will directly put earth-shattering results on it. But now that Chang Haonan and Perelman have learned from the past, who can be sure? ??Moreover, even if there are few truly significant results above, some wild ideas may still bring some inspiration. Therefore, at least most researchers will take a look from time to time to see if there are any surprises. It can be regarded as some kind of blind box opening behavior. And Harold is one of them. He is used to going there during lunch, which can be regarded as some kind of relaxation between work. ??Of course, sometimes its fun to watch some outrageous people post articles on it and then get angrily criticized by people (usually bored students)... But while waiting for the web page to load, there was a sudden knock on the door outside the office. "Come in!" Harold raised his head and answered loudly. As his voice fell, the door slowly opened. Then, a young student walked in. ?It''s just that he looks a little downcast. Matthew? Harold saw that his usually energetic student was like an eggplant beaten by frost today, and he couldn''t help but feel worried: What happened? Teacher, my paper was rejected by the editor of JCP again. ??The doctoral student known as Matthew sat across from Harold, completely wilted. JCP, The Journal of Chemical Physics, one of the most important academic journals in the field of chemical physics, was published by the American Union of Physics in 1933. ?Although the impact factor is not high, it is a very influential journal in the industry and is well recognized by academic and industrial circles.?????How is it possible? ? Harold put down the mouse and sandwich, and his attention completely shifted from the computer screen to Matthew: Didnt I specifically ask you to state in the introduction that the new framework in the paper has high accuracy in implicit large eddy simulations of lower Reynolds number turbulence? Of course I wrote it. Matthew nodded: But the editor of JCP still didnt accept it. Harold frowned. He was very confident about Matthew''s paper, but after submitting it to JCP twice in a row, it never got to the reviewers, which really puzzled him. ?At the same time, I was also a little annoyed. "Did the editor mention specific reasons when rejecting the manuscript? I mean...not a clichd one." Matthew nodded; Same as last time, the editor said that the first half of the paper is too basic and involves a lot of mathematical theoretical calculations, which does not comply with JCPs acceptance principles. I hope we can make revisions..." Before Matthew could finish speaking, Harold slammed the table in annoyance: Its simply ridiculous...The content is too basic and can it be a reason for rejection? ?Looking at the suddenly furious mentor, Matthew trembled all over, and his expression looked as if he was crying: Butbut thats how the editor responded ? Harold took a few quick breaths and made no reply. His anger was certainly not directed at Matthew. It is aimed at the editorial department of JCP. Harold had already guessed some clues. The rejection of the manuscript is not due to the content is too basic. Rather, it is because his research content is based on a high-precision format based on intra-unit polynomial reconstruction, which is inconsistent with the current direction of the "mainstream academic community." The **** determines the head, which is also a very common situation in academia. ?For example, in the biological field, if your research results are unfavorable to the commercialization of genetically modified genes, then journals under the Nature system will be more inclined to accept it. ??And if it is beneficial to the commercialization of transgenics in turn, then there is a greater chance that it will be approved by journals under the Science system. ?However, it is common, and if it really falls on oneself, no one can be a little angry. Whats more, in the field of fluid dynamics simulation, the scope of submissions is actually very limited. ??If you apply for a purely theoretical physics journal such as PhysicalReview, it is obviously not that interesting... Well, let me take another look at the article and see if I can submit it to another journal. After suppressing the anger in his heart, Harold said in as gentle a tone as possible: If that doesnt work, the Institute of Aeronautics and Astronautics (AIAA) will invite me to give a report at the end of this year. I will explain the content of this paper then..." Thats what it says, but reporting at a conference and publishing a conference paper are not the same thing. ??The high-order flux reconstruction method they studied does have high application potential in aerospace, especially the aerospace field, but it is not directly relevant after all. It is still a bit difficult to publish it as a conference paper. ?However, now that the matter has come to this point, we can only take one step at a time. Okayokay Matthew nodded dejectedly, said goodbye to Harold, and left the office. "well" Looking at the shocked student, the latter sighed helplessly, then picked up the cold sandwich and looked at the computer screen again. After such a long time, the arXiv web page must have been loaded. ?However, Harold had just taken a bite, and before he could swallow it, he was shocked by the title at the top of the list and stopped chewing. Aconservativelevelsetmethod Nosomeone really posted a preprint paper about numerical calculation methods on arXiv? Out of curiosity, he moved the cursor to it and clicked on it. When the web page was first loaded, this paper had less than 50 views. ??A mere ten minutes passed when Harold clicked in. ??However, I found that the reading volume displayed in the lower right corner has reached four digits... "ah?" He could hardly believe his eyes: Is this how popular the field of numerical computing can be? After confirming that the number was more than a thousand and not more than a hundred, Harold almost subconsciously looked at the bottom of the title of the paper ??There is basically only one possibility for this kind of situation where the number of readings increases as soon as it is published. That is, there are many people who have specially set up to follow this author. In other words, he must be a famous boss. However, it seems that no well-known figures in numerical calculations are used to posting things on arXiv... ?CHANGHaonan. Harold couldn''t help but take a deep breath. Why did I forget about him (End of this chapter) Chapter 899 Submit to Chinese journals? Chapter 899 Submitting to a Chinese journal? Almost without thinking, Professor Harold clicked the download button next to the paper preview page. About half a minute later, a PDF document appeared on his computer desktop. After opening it, he followed his habit and read the summary as quickly as possible. It turned out to be an article related to the level set method... It seems to be related to topology, which Professor Chang is good at. Harolds specialization is actually in the high-order numerical simulation framework. However, two-phase flow is an unavoidable topic in the field of aerospace power. As a past NASA researcher, it is difficult for him not to have some understanding of this field. : No wonder he has spent the past year ?While thinking this, he directly skipped the background introduction and started reading the main text. The fact that Torch Laboratory published a Nature paper on materials science is basically only known to people in the industry. Therefore, most scholars impression of the name Chang Haonan still remains at the time when it came out last year. It is a very normal operation for a mathematician, after completing the ultimate achievement in the field of topology to prove the Poincar conjecture, to go back and put his research results into application. Set the motion equation first, then update the level set function...add an intermediate term..." In order to prevent breakpoints, add sticky items Assume that the velocity field on the unit grid is u=sin^2(x)sin(2xy) At first, Harold just had the mentality of "let me see what the big guys are working on" and was ready to take a casual look. But after seeing this, I couldnt stop easily. Because starting from the third section, Harold realized that the paper in front of him was very similar to the rejected paper just now. ??Of course not in terms of content. Although both are algorithmic research in the field of computational fluid dynamics, they are not related from mathematical theory to practical problems. but refers to The writing style of the article is very similar. They all start from the classic algorithms commonly used in the past. They first use about half of the space to conduct mathematical derivation, then use a typical calculation example to verify the advantages of the new algorithm compared to the traditional algorithm, and finally prove that the algorithm converges within the specified usable interval. Fxxk Harold breathed out fragrance for a while: Let me just say that even he writes like this, which means that this kind of paper structure should be no problem..." Although Chang Haonan currently does not have any prestigious titles in the international academic world, anyone who pays a little attention to the field of mathematics will know that among the list of Fields Medal winners in 2002, it is basically certain that Chang Haonan and Pei Lehrman duo. So, this paper gave Harold full confidence. In fact, at the moment he just sent Matthew away, Harold even hesitated whether he should revise it again according to the JCP editors suggestion ? Even if he knows that due to content preferences, even if he changes it, he will probably continue to make things difficult for him. But if we dont change, there wont even be any hope. Of course it doesn''t matter to him, but as the first doctoral student he taught after becoming a professor, Matthew still needs a paper to accompany him. ?But now, Harold decided. Dont change a word! After making a thorough decision, Harold quickly dragged Chang Haonan''s paper to the conclusion at the bottom, preparing to find a different magazine to submit to after reading it. but. ?Just when he moved the mouse and was about to click on the upper right corner to close the document, his attention was attracted by a paragraph at the bottom of the paper, even after the conclusion. This paper is a preprint and does not represent my final research results, so the content is still subject to modification or addition. The official version of the paper will be published in the first issue of "Journal of the Chinese Academy of Sciences (English version issued in May 2001... "etc" Harold suddenly stopped moving his hands, opened his eyes wide and said to himself: Is Professor Chang planning to publish this paper? ?But he soon realized that what he just said was not human at all. It is normal for a paper to be written and published in a journal. Publish it directly on arXiv. The first time it was published is enough to make it famous throughout the ages. After all, Chang Haonan and Perelman wrote very clearly at the end of that paper that the Poincar conjecture is a wealth and treasure that belongs to all mankind, so they decided to disclose it to all mankind in a threshold-free form. The conservation level set method in front of us is obviously not a "treasure of mankind" in any way. ??Of course it doesnt deserve the same treatment as Poincars conjecture. ?After figuring out this link, Harold''s attention immediately shifted to the following "Journal of the Chinese Academy of Sciences (English version. Obviously, this is a naked advertisement. ??The purpose is to use Chang Haonan''s reputation in the field of mathematics and applied mathematics to draw everyone''s attention to this new journal that has not even released its first issue. Simple and crude. But many times, simple is the best. ?For example, now, Harold followed the information given by the other party without hesitation and entered the website of the Journal of the Chinese Academy of Sciences. Then The first thing that catches the eye is the information introduction of the editorial team. ??And Chang Haonan''s name is impressively located in the first position. Chief Editor. Harold is numb. So much that it took a long time to recover from the shock: I should have thought of it earlier He shook his head in confusion. ??If it weren''t for this relationship, I''m afraid no one would publish such important research results in a new journal... ?However, at this moment, Harold suddenly opened his mind. ??Although this is a new journal. It was also founded by Huaxia Institution. ??But no matter what, after all, there is the golden sign of Chang Haonan. ??Moreover, as far as the content of the paper just now is concerned, it may even have a revolutionary impact on two-phase flow simulation. ??If all the papers in this Journal of the Chinese Academy of Sciences... Wrong. ?Thats outrageous. It should be that even if only one tenth can reach the same level, it is enough to challenge the status of Nature and Science. In short, the future is promising. More importantly, Harold believed that Chang Haonan, the developer of TORCH Multiphysics, would be able to discern the great value of his paper! ?Thinking of this, he couldn''t sit still anymore. ?After eating the sandwich that was completely cold in a few bites, he quickly picked up the phone and called Matthew back who had just left for a short time. Within a few minutes, the latter sat across from the desk again. Teacher, are you looking for me? Matthew''s spirits were somewhat better than when he left before, but he was still a little absent-minded. Thats right. Harold has returned to a state of complacency: I have found the target for my next submission, and I am very sure that it will be passed directly! ?However, the other partys reaction was not as exciting as Harold imagined. "teacher" Matthew tried his best to act cooperating with the performance, but his tone was more helpless: You told me the same thing before I submitted my article to JCP last time "Well" Harold was a little embarrassed after being exposed by the students. Fortunately, he was not a face-conscious person, so he quickly pretended to have lost his memory: Is there still such a thing? Matthew nodded: Not a single word is wrong. Ahem Harold had to cough to cover up his embarrassment: Anyway, there is a real chance this time. Come and take a look. ??As he spoke, he motioned for Matthew to come behind him, and then displayed the paper on the screen and the webpage of the Journal of the Chinese Academy of Sciences. Submit toChinese journals? Matthew couldnt believe his eyes: "And...this looks like a new journal that hasn''t been released yet?" He was a little doubtful that his mentor was ready to break the pot. "Look carefully...the editor-in-chief is Professor Chang Haonan who proved the Poincar conjecture last year!" ? Harold''s tone contained a bit of hatred. As a student, I perform well in terms of hard work and seriousness, but I do lack a bit of spirituality. Moreover, Professor Chang will publish a paper in the first issue. The research content is also computational fluid dynamics, and the structure of the article is almost exactly the same as ours. In this case, this journal will probably be included in the SCI database immediately after its release, and the number of citations will be guaranteed..." Matthews eyes gradually brightened. Even though a year has passed, Chang Haonans name is still persuasive in the field of mathematics and applied mathematics. ?Having him as editor-in-chief can at least ensure that the journal will not degenerate into a subpar pheasant magazine ?Taking a step back, even if all other manuscripts are just fake, as long as Chang Haonan posts his results regularly, he can still guarantee the most basic citations and impact factor. so This wave is not a loss! (End of this chapter) Chapter 900 Competitors’ predictions Chapter 900 Competitors Prediction Similar scenes naturally occur not only at Ohio State University. ?As Professor Harold guessed, many people directly followed Chang Haonans account on arXiv a year ago. After the latter publishes an update, followers will immediately receive a reminder email in their mailbox ?Originally, functions like this may have to wait for a few more years, and will not be launched until the Internet era has fully arrived. But because of Chang Haonans emergence, technical staff at Cornell Universitys Science and Technology Campus were forced to develop this function in advance Thats why thousands of people clicked to view it within ten minutes. You must know that arXiv is not a self-media. Although there is no threshold for registration, its content inherently excludes most non-academic people. Even scholars, in 2001, not everyone was proficient in using the Internet. ?Besides, everyone is very busy, and it is impossible to spend all day on the Internet like an idle person. So, being able to generate a 4-digit reading volume in a short period of time is already a very amazing communication efficiency. ?However, not everyone has the same mentality as Harold. Slightly later. San Francisco, Stanford University. Professor Anthony Jameson was frowning slightly and looking at the PDF document displayed on the computer screen. ??Of course it is also the preprinted paper released by Chang Haonan. But unlike Harold, there were several other similarly dressed people sitting next to him. ? They are from the Swedish COMSOL company and are the development business leaders of COMSOL Multiphysics numerical calculation software. In fact, COMSOL has recognized the potential of multi-physics simulation tools very early. In the mid-to-late 1980s, one of its founders, Svante Littmarck, began to write similar modules based on the MATLAB software that had just been commercially released at that time. ?Unfortunately, it was still in the early stages of the development of computer applied science. Those who could apply computers on a large scale in their work were either top universities or super large companies such as Boeing, McDonnell Douglas, and IBM. Everyone has idol baggage and wants to independently develop their own application software. You mean outsourced software? Can''t afford to lose that person! Hence, the road to commercialization of COMSOL products has never been smooth. In this regard, on the contrary, China has provided Torch Group with a huge amount of business space because its universities and research institutions have limited capabilities and know that they do not have the ability to independently develop software. In the true sense of the word progress is rapid because the starting point is low, it is yes. ? It was not until TORCHMUltiphysics was released and began to seize the market with its absolute performance advantage that a MATLAB commercial toolkit called FEMLAB was launched in 1998 and was renamed COMSOLMultiphysics a year later in 1999. ?It is precisely in order to quickly catch up with the pioneers that COMSOL hired Anthony Jameson as chief technology officer with a high salary Before the name Chang Haonan appeared, Anthony Jameson could be said to be one of the greatest names in the field of CFD, especially the finite volume method. ?Since the 1970s, he has developed a series of CFD-related core algorithms for Boeing, McDonnell Douglas, NASA, France Aerospace, Dornier and other companies and institutions. In particular, he wrote a code framework for predicting ideal transonic flow on swept wings - FLO, and based on this, he developed the most successful CFD software "A488" for Boeing before the 1990s. The latter is the core calculation tool in the development process of Boeing 757, 767 and 777. It can be said that during those years, Jamesons role to Boeing was almost similar to that of Chang Haonan to China today... ? And such a big boss really had an almost immediate effect after joining COMSOL. ? In 1999, the newly renamed COMSOL software was almost overwhelmed by competing products, and could only survive at an ultra-low price among some universities that could not afford TORC Multiphysics. ? In less than two years, the newly released COMSOL Multiphysics 2.0 has already achieved more than 90% of the efficiency of its opponents in the electromagnetics-structural mechanics-fluid mechanics module. ?Although according to industry consensus, TORC Multiphysics definitely has a "professional enhanced version" with stronger performance, it has not been publicly released and does not constitute competition at the commercial level. Hence, in recent months, COMSOL has captured a lot of markets by virtue of its high cost performance and its status as a pure-blood European company. Especially some small and medium-sized start-up companies, as well as research institutions that are willing to try various new things. ??Although as a European company, it is indeed a bit shameful that it can only rely on cost-effectiveness to win. But its about making money. Not shabby. However, before they could breathe a sigh of relief, they discovered that the developer of TORCH Multiphysics opposite seemed to have come up with something new... This feeling of oppression was simply mind-numbing. So, the group rushed to Stanford without even having time to have lunch and asked Professor Jameson about coping strategies. Professor, what do you think? Klaus Helz, the head of COMSOL based in the United States, looked at Jameson who had not spoken for a long time and tentatively broke the silence. A very nice model. Jameson came up with a compliment. ?This almost caused Hertz to have a cardiorespiratory arrest. ?However, the former changed the subject immediately: But only on a theoretical level. It can only be said that Jameson knows how to suppress desires before promoting them. ?Heltz, who had gone through a lot of ups and downs in less than a second, had no time to complain about this and quickly asked: So, professor, what you are saying is...there are still many difficulties in implementing this algorithm? Thats right. Jameson let go of the mouse and turned to look at Hertz, who was sitting not far behind him: Using LSM, oh, this level set method to simulate evaporation, atomization and combustion on the deformation interface is indeed closer to reality than the empirical vapor layer model and simple heat transfer model. "But in terms of specific algorithm implementation...traditional meshing, I mean, even moving meshes such as the Lagrangian mesh method, are difficult to meet the requirements of mesh generation accuracy and accuracy in this paper. Speed ??requirements. You must know that most two-phase flow interfaces themselves change rapidly with time. The original LSM method is not strictly conserved and cannot guarantee accuracy in long-term simulations of more than 1 second. Professor Changs new algorithm achieves conservation when dealing with two-phase flow problems with divergent free velocity fields, but the generation efficiency in the Cartesian coordinate system is reduced..." At this point, the former took off his glasses and rubbed the corners of his sore eyes: "Of course, this paper is still a preprint, and it does not involve much about the specific implementation process of the algorithm. But unless the computing speed of the computer is improved by 3-4 orders of magnitude compared to now, there will definitely be no way to solve the problem of long wheelbase time parameters. CFD problem, so I speculate that the author may have found some specific conditions as a calculation example to get such beautiful results in the article..." You know, even for the N-S equation, people have found hundreds of analytical solutions under specific circumstances. According to Professor Changs mathematical level, I think this is not difficult..." It should be said that Jameson is worthy of being the best CFD expert in the last era. He almost saw the weakest part of Chang Haonan''s thesis at a glance in just twenty minutes. That is, the grid generation efficiency in the Cartesian coordinate system. ? Its just that, after all, he is already a CFD expert in the last era. As for the power of new technologies in the new era, there has been a misjudgment after all... ?Of course, at this point in time, Hertz must still be happy: So, our next work Proceed as usual. Professor Jameson replied decisively: "My Synplane model has entered the final and most critical optimization stage. Judging from the current results, the traditional finite volume method is used to fix the coordinate system describing the fluid on the fluid particle and let it move with the fluid. , which can achieve the effect of accurately tracking the evolution of the interface. "Currently, my research group is trying to topologically reconstruct the grid to solve the distortion problem caused by this process. It just needs to introduce special node search technology to determine the adjacency relationship of nodes. This part of the work is a bit complicated, but in the end It should be ready for commercial application by the end of this year. Facing the dominant position of Torch Group, COMSOL Multiphysics, in addition to its cost-effectiveness strategy, has another important advantage in its extremely fast update frequency. More than a year after it was officially launched, the second major version has been launched. Especially for industry-leading functions, as long as they can pass the performance test, they should be included first. This is very attractive to most research institutions. ??TORCHMultiphysics is the complete opposite. After the official version 1.0 was released, it only pushed a total of three small-scale updates. However, its performance is extremely stable. As long as you follow the operation manual, there will be almost no oscillations or divergences. However, this also causes COMSOL to maintain such high-intensity updates, so the business is under great pressure. They plan to push another major update at the end of 2001 to increase the software version number to 2.5. Synplane, a model that can optimize the fluid mechanics and structural mechanics of the entire aircraft at the same time, is the "trump card" of version 2.5. ?Hence, after hearing this assurance, Herz''s tense expression finally relaxed. (End of this chapter) Chapter 901 The one-year period has arrived! Chapter 901 The one-year period has arrived! In short, although Chang Haonan just sent a trailer for his new paper, it caused quite a stir in the academic and business circles at the same time. ?In addition to COMSOL, several other similar products have also found technical experts or technical teams as quickly as possible to start tracking and analyzing his research developments. ?Of course, because most competing products do not specialize in two-phase flow, they either have a superficial taste, or, like COMSOL, continue their original development route after a wave of analysis. Only ANSYS, which had developed Fluent in the early years, saw the potential behind this paper. ??But I also encountered a similar problem to Professor Jameson - I really cant think of how to accurately and efficiently generate unstructured grids in the Cartesian coordinate system. Logically speaking, when this happens, since others have published all the papers, they can either pay a high salary to recruit people, or even if they cannot recruit people, they can just provide the author with a research topic. But this situation is too special The person who wrote the paper was the boss of the opposite company. How do you dig this? So for the time being, we can only wait and see what happens, and wait and see what the Torch Group can do next. Some technology media have rekindled the interest of this matter with titles such as "Poincar Conjecture prover releases arXiv again". ?However, we cannot entirely blame these media for causing trouble. Mainly because the time stuck was too coincidental. You know, the proof of Poincars conjecture is still unfinished. ? A year ago, the Clay Mathematics Institute made it clear that although the Poincar conjecture was proven almost at the same time after it was officially announced, it still belongs to one of the "Millennium Mathematics Problems." In other words, the two certifiers can share a huge prize of US$1 million in total. According to the rules set at the time, the money will be officially awarded as soon as one year after the paper is published. If the proof process still fails to reach a consensus in the mathematical community after one year, it will be postponed until formal recognition is obtained. Of course, Chang Haonan and Perelmans certification process was approved in less than a month, so the latter clause was not triggered. Now, the one-year period has arrived. ??Everyone is ready to see whether the Clay Institute is really prepared to pay the money as promised, or whether it is just a word of praise. ?However, compared to the disturbances from the outside world, Chang Haonan himself is not too concerned about the aftermath of this submission. ? During this time, he has been reviewing the manuscripts in the editorial mailbox to decide which articles will be published in the first issue of the JCAS journal Normally, this work does not require the editor-in-chief to be personally responsible, but after all, this is Huaxias first attempt to break into the international mainstream academic community, so it is normal for the standards to be higher. ?However, the actual situation is that everyone in the editorial department has much more optimistic expectations. After all, Chang Haonans brand name is so effective in China. ? Many people even turned to the JCAS editorial department to submit their papers to the top journals in the field. For example, Professor Feng Qi from the Institute of Technical Physics of the Chinese Academy of Sciences submitted the gene sequencing and analysis results of rice chromosome 4. Although it is only 4 pages long, it is an important part of the genome sequencing work. It is a result that can be published in Nature or Science. It can definitely be considered as full support for the work. In addition, there are many names that Chang Haonan is familiar with. ?Xu Yang, who has been working between the Institute of Computing and Torch Group and the Torch Group, developed a high-dimensional observation method for linearized water wave problems with distributed or point measurement functions. Professor Lin Guofan of Jincheng University proposed a new meteorological theory on the formation mechanism of major weather disasters in southern China... In short, although the overall strength of Chinese academic circles is still relatively weak at the beginning of the 21st century, it is more than enough to pool the strength of national research institutions to support a quarterly journal. ?Of course, since it is an internationally distributed publication, it cannot only contain articles by Chinese scholars. As Chang Haonans papers on arXiv are seen by more and more people, some foreign researchers are also submitting articles to the editorial board. Its just that foreigners dont have any special feelings towards your new journal. So the quality of these papers is unexpectedly uniform ??There is no chance of submitting to top journals, but I am not willing to submit to some small journals. As there is a new platform with such a powerful platform, it is better to take a gamble and try my luck. It is also in line with Chang Haonans initial positioning of JCAS. ?Just comparing it with those obviously high-quality submissions in China, it is inevitable to feel a little tasteless and a pity to abandon. Therefore, when Yuan Xiangya rushed to Chang Haonans office to visit him, the latter was comparing two papers from the same school on the screen with a tangled look on his face, and could not make up his mind for a moment. Professor Chang, no, Editor Chang, Ive been working hard recently. The former put some gifts he brought next to his desk, and then sat on another office chair opposite. ?Chang Haonan raised his eyelids, checked that there were no sensitive valuables, and then accepted them without any courtesy ??During this period, his status was as a chief editor and writer, and it was only natural that he would receive some nutritional supplements from others. In fact, Yuan Xiangya is also a member of the editorial team. Its just that there are too few papers related to his field of expertise, so he has a lot of time. Forget it, I never expected that there would be so many submissions. In addition to sleeping and eating these days, I have been reading papers almost all the time. I feel like my brain has gone numb..." Chang Haonan said as he closed both papers, and then dragged one of them into the folder named "Issue 1". The other article will certainly not be rejected, but it will probably have to wait until the second issue in August to be published... In fact, the real submissions are more than ten times more than what we have seen. ?Yuan Xiangya has experience in the editorial department of journals before, so he has much more experience in this regard than Chang Haonan: Those whose contents are too outrageous, or are just fake, and whose data can be seen at a glance as having problems... In fact, the editors below have already picked them out. So theres still so much left? ?Chang Haonan was immediately shocked. "no way" Yuan Xiangya replied in a helpless tone: "We didn''t expect Professor Chang to have such a strong appeal. It was indeed a bit of a mistake. We knew we should have ordered a bimonthly publication... and the quality of the submissions was much higher than we thought before..." Thats okay, after all, its just starting out, its better to be steady. Chang Haonan was relatively calm about the current situation, so he waved his hand: "Our journal is now like Zou Ji. His wives, concubines, and guests all say that he is more beautiful than Xu Gong in the north of the city. It does not mean that it is true. If you look at more submissions, you will find that the high-level ones are all Chinese scholars at home or abroad. , it has a filter on our journal and cannot be regarded as normal. " As he spoke, he reopened his mailbox and prepared to check the next email. ?However, at this moment, the coherent movements suddenly stopped. I am worried that the publication interval of the quarterly journal is too long. Some authors cannot wait three months and may be withdrawn..." Yuan Xiangya was still chatting normally, but halfway through, he found Chang Haonan staring at the computer screen in a daze. Professor Chang. Professor Chang? He barked twice in succession. "Um?" Chang Haonan woke up and looked at Yuan Xiangya: "Ah...Sorry, I was a little confused just now. What did you just say?" Its okay...its not an important topic. Yuan Xiangya shook his head: Have you... seen any particularly heavyweight paper content again? He is still more concerned about journal matters. Thats not trueactually it has nothing to do with the journal. Chang Haonan raised his hand and touched his chin: The Clay Mathematics Institute sent me an email, saying that the award is ready. Yuan Xiangya didnt even react when he heard this sentence: "What" ?However, before the word "award" was uttered, he had already realized - "etc" So itsthe $1 million from the Millennium Math Puzzle? ?Chang Haonan nodded, and then shook his head: Technically speaking, its $500,000 (End of this chapter) Chapter 902 I, Chang Haonan, make money Chapter 902 I, Chang Haonan, make money ??The Clay Institute of Mathematics has tackled these seven major problems, and the award format is also based on the Nobel Prize. ?If more than one person solves the problem together, the prize money will be divided equally among them. So according to principle, Chang Haonan and Perelman should each receive US$500,000. In the original timeline, because the latter went into seclusion directly after completing the proof, the money was not given out in the end. ?However, because the situation in this life has changed dramatically, no one can say what decision Perelman will make. But no matter what, Chang Haonan is still prepared to receive the bonus. Not that he personally needs the half a million dollars for anything In fact, Chang Haonan can''t find any place where he needs to spend money in his daily life. Mainly considering a symbolic meaning. This is the first time in history that a scholar with Chinese nationality has won such a top honor in mathematics. Thats right, top notch. It must be admitted that the Clay Institutes publicity campaign was very successful. On the one hand, the seven questions they chose are indeed very high-level and widely recognized by the industry. on the other hand The dramatic scene of "someone won the award almost at the same time as the award was announced" has indeed objectively made more people understand the "Millennium Mathematics Problem". Therefore, the popularity of this award, which has never been awarded even once, has far exceeded that of "time-honored" brands such as the Fields Medal and the Wolf Medal. ?Even once came close to the Nobel Prize. ? It is said that the Norwegian Academy of Natural Sciences and Letters was also inspired by this and is preparing to use high bonuses to win another mathematics prize in time for the 200th anniversary of Niels Abel''s birth in 2002. In short, for the glory of the entire Chinese mathematics community, Chang Haonan finally reluctantly decided to stand up and shoulder the heavy burden of US$500,000... ?Of course, having said that, the final situation still depends on the outcome of discussions between the two parties. So, after careful consideration for a while, he replied to the other party with a sincerely worded email. In the reply, he first gave the Clay Institute of Mathematics a polite rainbow fart, and then said that he was very grateful to the other party for recognizing his research results, and he was also willing to be one of the first recipients to receive this honor, but he was currently in the process of receiving the award. We are at a critical stage of research on an important topic, so it is really inconvenient to leave the capital. I hope this can be taken into consideration when designing the award method. ?At the end of the email, Chang Haonan also thoughtfully said that if it is really inconvenient to award the award in China, the prize money can be transferred directly to his account. The rituals and other things can be added later when it is more convenient. Simply put it is. I, Chang Haonan, make money! After replying to this email, he almost immediately received a message from Perelman. Or, to ask. Chang, you should have also received the email from the Clay Mathematics Institute, so I wont repeat its content. [Personally, I have no particular interest in awards or bonuses, and I believe you should be the same. However, on the other hand, there is no shortage of honors in the history of Russian mathematics, so I can make my decision without restraint. But the Chinese mathematics community may need you to stand up and receive this award. I can understand this. Considering that the award-winning work was done jointly by the two of us, if I were the only one to refuse to accept the award, you may be put in an unfair position. Therefore, I would like to ask your opinion on accepting the award. Grigory Yakovlevich To be honest, Chang Haonan was a little moved when he saw this serious but concerned email. It can be seen that Perelman, a mathematician known as a "geek", really regarded him as a confidant. "well" After a long time, Chang Haonan sighed helplessly, and then began to write a reply again... Yuan Xiangya next to him was originally planning to see the world and see what the communication process for awarding the Millennium Mathematics Prize is like. ?So after obtaining Chang Haonans consent, I also came to peek at the screen. ??The result was such an email at first glance. It makes me a little doubtful about life This is an award that others only dream of receiving. Why do you feel that it is like a hot potato? ?He said to himself that if no one really wants this 1 million US dollars, it is not impossible to give the money to me... Actually, there is obviously not only one person who doubts his life because of this incident. ??If Yuan Xiangya was still complaining in his heart, then Arthur Jeff, who was preparing for the award at the Clay Mathematics Institute, was already close to going crazy at this moment. ?Originally, he actually received replies from these two and a half missing people within half an hour of sending the letter today, and he was still very happy. result Extreme joy brings sorrow.?????After opening the email, I couldnt laugh at all. Of these two gods, one said that he didnt care about the award format, and asked him to decide directly with the other person, and then just inform him of the result in the end. And this other one said that he couldnt get away, and then directly gave him the card number Just show it to Jeff and look stupid. You know, for this award, they have prepared a quite grand and complicated ceremony at the French Academy of Sciences, just waiting to use this to further build their reputation. ??It would be best if we can take advantage of the situation and recruit a few more big guys. In the end, Chang Haonan said he didnt want to go abroad? In any case, it is absolutely impossible to send money directly. They set up this award to promote themselves, not for charity. To put it bluntly, even if you are engaging in charity, you have to meet the other party before giving money. ??Jeff doesnt even know what Chang Haonan looks like, and his communication has always been through email. What if the person opposite is not Chang Haonan himself, but a liar? So there must be a ceremony. In fact, logically speaking, Chang Haonan''s reply can be regarded as a refusal to accept the award. After all, the method of awarding is also part of the conditions for winning. To receive the award, you must comply. But some things dont make sense. ??Concerning "whether Poincar''s conjecture is counted as one of the seven major mathematical problems", in fact, it caused quite a stir last year - ??Some of them were promoted by sponsor Langton Clay himself. So now the eyes of melon-eating people all over the world are eager to focus on the Clay Mathematics Institute, waiting to see if you are really ready to pay as promised. At this time you stand up and say that both winners refuse to accept the award? Who believes it? Hundred mouths cannot explain it. So, this award must be given out no matter what. But there is another problem. You cant ask me to go to the capital, so I will go to the capital. ??It would be too bad to go all the way to China to present an award because of an email from Chang Haonan. And it will be a very bad start. In case the leaders behind them also follow the gourds, wouldn''t their Krey Research Institute become kneeling and sending money? So, you have to find a suitable excuse. Jeff''s mind began to race. A few seconds later, he turned his head and looked at his assistant not far behind him: Jessica, has it been decided where the International Congress of Mathematicians will be held next year? ?Jessica thought for a moment: Currently, we are choosing one of four cities: Beijing, Madrid, Bangalore and Seoul. The final result has not been released yet, but it is almost certain that it will be the capital of China. ? Hearing this answer, Jeff finally breathed a sigh of relief. That will be easy to handle. Since the specific award rules have not yet been announced, as long as the other contents remain unchanged, the award location can be changed from the fixed French Academy of Sciences to the International Congress of Mathematicians - This is not something we are easy to talk about, its just that ICM happened to be in the capital. Dont get me wrong. Thats how the Fields Medal is awarded anyway. ?Thinking of this, Jeff quickly returned to the home page of his mailbox and began to write an email to his boss, Landon Clay, explaining the cause of the situation and requesting a change in the award plan... "well" ?After the email was sent, the former leaned back on his chair with relief, his eyes almost lost focus, and he looked straight ahead. Its too difficult. He said to himself: Its okay to make money, but why is it so hard to make money (End of this chapter) Chapter 903 Reversely poach talents from the United States! Chapter 903: Poaching talents from the United States! ?As far as Chang Haonan is concerned, as long as the other party agrees to hold the award ceremony in China, everyone will be happy. The issue of face is secondary. ?Of course, on the other hand, he really didnt know what the original arrangement of this ceremony was ??The proof process of the Poincar Conjecture in the previous generation did not cause a stir of public opinion like last year, so Perelman successfully refused to accept the award in the end. So, there is actually no prize for the Millennium Mathematical Puzzle. This is the first time in his two lives. In short, in his reply to Arthur Jeff, he first stated that "the venue of the award ceremony cannot be adjusted at will according to the request of the winner", but then turned around and said that "the award ceremony will be held at the nearest International Congress of Mathematicians" "Chang Haonan finally chose to see through this kind of behavior that was inimical to his integrity but not speak out. He also wrote back and highly praised the efforts made by the Clay Mathematics Institute in reducing extravagance and waste and practicing thrift. ??I just dont know if the person at the other end of the network cable will vomit blood after seeing it... ?However, Yuan Xiangya''s reaction next to him was still a little slow, and he frowned slightly after seeing this reply: Professor Chang, isnt the nearest International Congress of Mathematicians the one next year? "yes." Chang Haonan said as he closed the email receipt interface, and then clicked on an email from the inbox again. Judging from the domain name, it should be from Ohio State University. "But I remember...next year''s class is already close to ten, and it''s decided to open in BJ?" Yuan Xiangya obviously still lacks some deep understanding of the attribute of "tsundere". Hey...you are a foreigner, so good for face. Chang Haonan shook his head helplessly: If I ask them to present the award in the capital, the other party will definitely not agree directly. After all, there is no reason for the person who gives the award to be manipulated by the recipient. But having said that, because of what happened last year, Perelman and I can refuse to receive this award, but the Clay Institute must not refuse to award it for the sake of its own reputation. So I can only find some decent ways. Yuan Xiangya felt that his visit today was not in vain. ??He had seen more anecdotes in that hour than in the previous ten years combined Those who think that $500,000 is a hot potato, and the award organizers who are begging to give money to the winners. ?However, it is always a good thing. The Chinese mathematics community has never been so proud as it is today More than half a century ago, there were some systematic achievements in theoretical mathematics in China. However, as a poor and weak country at that time, China was inherently unable to make a big noise in the international arena. This is true in any field. Later, the Chinese people stood up. ?As a result, Huaxia Mathematics fell again... In short, it just didnt catch up with the good times. But now, probably all the hardships will come to an end... Looking at Chang Haonan who was immersed in work again, Yuan Xiangya suddenly felt that even though he had passed the best age for achieving results, it seemed that if he changed his route, he would not be able to do something more... Then I wont disturb your work. ?Thinking of this, Yuan Xiangya stood up and prepared to leave. This time, Chang Haonan just sent him to the door of the office: I just received a very interesting paper, so I will send it to you not far away. The two shook hands as a farewell. Its okay, I understand how it feels. Yuan Xiangya is also an academic after all. Knowing Chang Haonan, this is definitely not an excuse: Its very annoying to have your train of thought interrupted while reading a paper. I wont be such a bad person. Goodbye. After sending Yuan Xiangya away, Chang Haonan almost jogged all the way back to the computer. The paper on the screen that was highly praised by Chang Haonan was naturally from the research group of Professor Harold Huang. ?AfluxReconstructionApproach toHigh-OrderSchemesIncludingDiscontinuousGalerkinMethods (High-order flux reconstruction methods including discontinuous Galerkin methods). Chang Haonan was attracted almost as soon as he saw the title of the paper. After reading the abstract and highlight, he was basically determined to accept this article. Simply put, Professor Harold unified a series of compact and high-precision formats that have emerged in recent years through a method called "high-order flux reconstruction (FR. As long as different flux correction functions are selected in the FR method, almost all high-precision formats based on intra-unit polynomial reconstruction can be covered. It can be said that this achievement is equivalent to the "grand unified theory" in its subdivision. Especially for Chang Haonan, this is even more true. High-precision format has been a very hot research direction in the past two years. ?However, this has nothing to do directly with Chang Haonan himself or Torch Group. If I have to say something, it can only be said that the emergence of the catfish TORCH Multiphysics has made the entire numerical calculation field active, thus giving birth to a series of achievements that did not exist at all in previous lives, or did not appear until much later in previous lives. . High-precision format is one of them. Theoretically, its advantage is that when sufficiently high-precision meshing is used, the calculation error can be controlled to a very, very low level. Or in other words, if such a low calculation error is not required, the number of grids can be greatly saved. Taking the level set method studied by Chang Haonan as an example, when the error constraint is 1e-6, the grid size corresponding to the fourth-order high-precision format is 32 times the grid size corresponding to the second-order format. In the three-dimensional case, the mesh amount can be saved to 1/30000. In this case, the additional complexity introduced by the high-precision format itself is basically negligible. However, the application scope of each high-precision format is quite narrow and the complexity is very high. If each format is written into the software separately, the amount of code data will increase to an unacceptable level. And many complex engineering models cannot be processed in one format at all. Hence, the current official version of the software has not included high-precision formats in the update plan. The FR method, if it is what the author said, can solve this problem perfectly. As long as the user sets the flux correction function. As for why such a significant paper was published to JCAS... Chang Haonan can probably guess it. Although the FR method solves the problem of "narrow application range of a single method", in order to truly realize its application, two other obstacles must be overcome - Similar to the reason why the level set method is difficult to generalize. ? High-precision format has extremely high requirements on meshing accuracy. If the mesh is rough, the results of the high-precision format may be worse. ?Furthermore, due to the relatively poor adaptability of high-precision formats, it also requires high levels of engineers using CFD software. Even with FR, it is impossible to solve some simple problems with software presets like traditional low-level methods. This is the case in the field of numerical computing. Different people use the same software tools to complete the same topic, and the results are often very different. However, in the current initial stage of the development of the CFD industry, the level of the vast majority of users is difficult to describe. Hence, the industry is generally not optimistic about the short-term development prospects of high-precision formats. Even Chang Haonan was like this before today. It''s just that he is two steps ahead of others - ??Torch Group not only has the only meshing algorithm in the industry, but also has a numerical computing business department dedicated to "after-sales" and even holds regular numerical computing business training. This is also one of the core reasons why TORCMultiphysics dares to set high prices. In other words, there are three big mountains facing competing products. Turn over one and there are two left. But Chang Haonan was already standing in front of the third mountain, and the road would be smooth after climbing over another mountain. The FR method in front of me is not even a trekking pole. It is a shield machine. Can directly open a tunnel out... Thinking of this, he quickly threw the paper into the folder where it was published in the first issue, then picked up the phone on the desk and prepared to ask the Torch Group office to send an email to Professor Harold in the name of the company. Lets see if we can poach the opponent directly. ?However, after pressing two numbers, his right hand was hanging in the air again. ?Due to the interruption of the dialing action, the receiver soon sounded a tone indicating that the phone number was unavailable. After struggling for a moment, Chang Haonan put down the phone again. ??Although Torch Group has gained a certain reputation in the industry, in the final analysis it is still a Chinese company. It is now the beginning of the 21st century. Even though Chang Haonan has used various means to make China develop much faster than in the previous life, for people who have not experienced the two timelines, this contrast cannot be felt. So, going abroad or even immigrating is still the lifelong dream and goal of many people. ?? And poaching people from developed countries, especially the United States, which seems to be still at its peak at this time... Its quite difficult. ?Affected by the propaganda from the United States, China''s image in the eyes of Americans, if not still at Daiqing, is at least not much different from that of a large South Asian country. ?So, if you send someone an email so suddenly, Im afraid the effect wont be very good. Still need to lay the groundwork. Furthermore, Chang Haonan also had to confirm whether Harold Huang really had ink in his stomach. After all, the journal editorial office is not responsible for the authenticity of the content of the paper. But as a leader, he must be responsible for the development of the company. With this in mind, Chang Haonan had a new plan in mind. ?So, he picked up the receiver again and quickly dialed the number of the Torch Group''s office. Hello, Old Song, its me, Chang Haonan. You remember to make arrangements. When the TORCH Multiphysics 2.0 version is officially released in the second half of the year, we will hold a conference on numerical algorithms and computational science. Yes, for the whole world. The specific format and arrangements are up to you to consider. The group will mainly bear the funding. Of course, it would be better if others are willing to sponsor it. Wellif friends and businessmen are willing to participate, we welcome them with both hands! (End of this chapter) Chapter 904 Preparing for trial production Chapter 904 Preparing for trial production For Chang Haonan, being the editor-in-chief of JCAS is not, after all, at least not his main business right now. Therefore, after finalizing the list of papers published in the first issue, as well as the front and back covers, Chang Haonan handed over the subsequent specific work to the two deputy editors in the editorial department. As for himself, after taking a break, he returned to the project at hand. ?During the previous period, the engineering prototype of the ultra-short laser processing equipment that Haojing Optical Machinery was responsible for has also reached the end of the production stage. Only a few optical wedges and lenses that need to be imported are still in transit. It will probably be completed about a month ahead of schedule ?According to Chang Haonans original plan, the multi-degree-of-freedom mobile positioning module responsible for controlling the movement of the workpiece also needed to be imported from abroad. This thing requires a high degree of customization, which is much more troublesome than most optical components. But after the prototype was built, the project team discovered that Torch-C.B. Ferrari could directly provide similar equipment. The principle of the ultra-short laser processor is similar to that of a new model of CNC milling machine over there. The workpiece moves on the four axes of X, Y, B (rotating around Y), and C (rotating around Z), and the Z direction is determined by Milling cutter (laser) movement. Since the laser itself does not require main movement (rotation) at the same time as the milling cutter, this is basically the easiest processing method to implement. In short, as long as it is simply improved, it will not be a problem to at least use it on a prototype first. As for the mass production model, there are still many opportunities to slowly debug it. ?Of course, Academician Hou is responsible for the hardware development and production of the equipment itself, and Chang Haonan does not need to interfere in everything. ??But after all, Academician Hou is only an expert in laser processing, not an expert in aerospace engines. Therefore, Chang Haonan still needs to be responsible for determining the specific process parameters of the prototype trial production process. In fact, the ultimate goal should be to identify a class of process methods. After all, there are so many workpieces that need to be processed by ultra-short laser processing in the future, and it is impossible to come to Chang Haonan to be responsible for each one. The ultimate goal should be to achieve similar results to machining, which can be done by the resident engineer or the design and development team of the workpiece itself. Its just that this process has to be done step by step. At present, both Factory 112 and Factory 132 are clamoring for more turbofan 10 production capacity, so this urgent matter must be resolved first. As time goes by, the degree of completion of the engineering prototype is getting better and better. Finally, the date for the first trial production was determined on the last day of the first half of 2001. June 30th. The location of the trial production is naturally at the new location of the Torch Laboratory. It is an engineering prototype after all. ??Although the degree of completion is much higher than that of the prototype, which only has a shelf and messy cable management, there are still a lot of things that make do. For this kind of equipment, it is not easy to debug it to normal state. You still have to abide by the programming philosophy of "don''t move if you can run". Comparatively speaking, it is obviously a simpler way to bring several semi-finished workpieces from Shengjing. Therefore, one week before the trial production date, an aviation production technical team from Liming Factory, personally named by Chang Haonan, brought various technical materials and a group of turbines that had completed other processes except for the air film hole processing. Ye Ye came to the capital. The person leading the team is naturally Zhong Shihong, who is responsible for the production of turbofan 10. After meeting, only after some simple greetings, everyone came to the No. 1 Experimental Building of the Torch Laboratory together. ?The engineering prototype is placed in the trial production workshop here. ??Its just that for this kind of unfamiliar equipment, you still need to go through a round of training before you can actually get started. After a brief rest and lunch, everyone took their seats. Immediately afterwards, Chang Haonan, wearing a lab coat, came behind the small desk. On the screen next to him, the basic schematic diagram of the ultra-short laser processor is projected. Everyone, time is tight and the task is heavy, so we wont waste any more time and start directly from the principles of the processing system. ?Chang Haonan turned slightly sideways and pointed at the curtain with a pointer: The entire processing equipment can be divided into seven parts: laser generation module, optical transmission track changing module, multi-degree-of-freedom mobile positioning module, monitoring and detection module, air blowing and dust removal module, solution circulation module and controller module. The core components of each part are I have already written the parts on the PPT. "Theoretically, this equipment is equipped with a self-inspection and troubleshooting system similar to that of our turbofan 10 engine. Even if an error occurs, the specific location of the problem will be displayed in the system, but as core engineers, you should still Have an in-depth understanding of device hardware An additional explanation is that because picosecond-level lasers cannot completely eliminate thermal processing effects, we will immerse the workpiece in a neutral salt solution for production, so the air blowing dust removal module does not need to be put into use for the time being. But on the mass production machine, we may use coaxial injection technology to allow the laser and salt solution to be coaxially injected onto the material surface, so we need to consider the issue of air blowing and dust removal... Chang Haonan said as he clicked the mouse, turned the PPT to the next page, and began to introduce the process level: For materials with different characteristics to be processed, I have designed a set of numerical calculation methods that can guide the design of processing processes from the perspective of surface molecular dynamics. "However, because computational materials science is still in a very preliminary stage of development, not all content can be directly calculated. Production testing is still needed to finally determine the specific process parameters. This is also the main purpose of this test. content." "Specifically, parameters such as laser pulse width and wavelength cannot be adjusted temporarily on this engineering prototype, so put them aside for now. What you need to determine are mainly the number of scans, repetition frequency, scan speed, pulse energy, and There are a total of eight parameters including feed rate, feed path, layer level and processing environment..." "One thing that needs extra attention is that our turbine blades are not made of a single material, but have a layer of heat-insulating coating on the surface. This may not be a big difference for mechanical processing, but for laser processing, the coating section and transition The corresponding processing techniques for the three parts of the segment and the metal matrix are different, so the processing needs to be segmented..." ?Chang Haonans lecture speed is as fast as ever. Even so, this first technical meeting still lasted a whole afternoon. Mainly, Chang Haonan spent about three hours introducing how to apply the new calculation method he developed. For engineers with non-theoretical background, it is indeed beyond the scope of ability to rely on this set of algorithms to obtain very specific results. But if we are just preparing to provide qualitative guidance on process testing, it should be possible. Hence, he spoke in great detail. ?The engineers sitting below are almost writing out sparks with their pens. Especially Zhong Shihong. Four years ago, he was promoted from the director of the technology department to the deputy general manager of Liming Group precisely because of the successful mass production of the turbojet 14. ? And this time, if the production of the Turbofan 10 can be finalized through his hands, it will definitely be a very important bargaining chip for the future competition for the position of general manager. ?Zhong Shihong has been working hard for several years to this end. Compared to the time of Turbojet 14, his level of numerical calculation theory has improved a lot now. At least this time, I can think along the lines of Chang Haonan... Dear comrades. ?After Liu Chenchen refilled the cup in front of Chang Haonan for the sixth time, the meeting finally came to an end: The biggest problem currently restricting the increase in the production capacity of turbofan 10 is that the processing efficiency and yield rate of special-shaped air film holes cannot meet the standards, resulting in high production hours and production costs. This trial production is one of the most critical links in the production and finalization process of the turbofan 10. I know that everyone is somewhat anxious. Chang Haonan returned to his seat in front of the conference table with a glass of water in his hand. His eyes calmly swept over the dozen key members in front of him: However, ultra-short laser processing is a new technical direction after all, so even I, or Academician Hou, cannot guarantee that all situations will be taken into account 100%. So, if you find any possible problems, you must report them in accordance with the regulations. Dont worry about affecting efficiency, and dont take things for granted. Do you understand? "clear!" Everyone answered in unison. "good." Chang Haonan nodded and took a deep breath: Then lets prepare according to the tasks just assigned! (End of this chapter) Chapter 905 Special-shaped air film hole, punched successfully! Chapter 905 Special-shaped air film hole, punched successfully! Preparatory work before the start of trial production lasted for nearly a week. In fact, although the entire testing workload is heavy, it is basically repetitive work, so the process itself is not complicated. It was all arranged the next day. But anyone who has ever entered a factory (regular factory) knows that safety training takes up the longest time before starting work. Ordinarily, those chosen to come to the capital are all master craftsmen, but the situation of laser processing is different from mechanical processing after all, and the equipment itself is not very stable. So Chang Haonan and Academician Hou even spent two days demonstrating some precautions in the operation of this equipment. Finally, everyone was given two days off. After recuperating, trial production officially begins! According to usual practice, this first process test naturally requires a very high specification configuration... As the head of the production process group of the Turbofan 10 team, Zhong Shihong fixed the first turbine blade that had been coated on a special fixture. Immediately afterwards, Chang Haonan, who was sitting in front of the computer, copied the process parameter setting code that he had written before into the command line interface Because time was so tight, there was no time to design the UI interface of the control system. It could only be set by connecting an external laptop and inputting operation commands on site. ?Han Zhigao, who leads the light source control team, fuses the power of the laser and opens the valve of the solution circulation module. ? Huo Penghua, the leader of the signal transmission team, conducted routine safety inspections before processing. The testing workshop in the laboratory is naturally not large. ?The entire team consists of nearly 30 people, and several of them have to run forward and backward, so it is indeed a bit crowded. ?However, under the command of Chang Haonan, the entire boot process was carried out in an orderly manner to the end. Academician Hou Xun, the general person in charge of hardware research and development, personally pressed the yellow button to start processing... With a slightly harsh buzzing sound, the micro vacuum pump started working, pumping the special neutral salt solution stored in a tank not far away into the workbench. The surface of the workpiece is slowly immersed in the liquid. At the same time, several consecutive sets of booster coils increase the current in the high-power system to the operating level of the laser. In order to prevent some relatively fragile electronic components from thermal breakdown, a cooling system that has nothing to do with the processing itself but is bulky and essential has also been started. If there are superconducting materials with relatively high availability, the working efficiency of the entire laser can continue to improve. Academician Hou leaned on a table, looked at the equipment that was still under the yellow light (waiting for processing), and slowly said to Chang Haonan next to him: "Although some optoelectronic technologies are used at the control signal level, the energy system still uses electricity. Now the thermal effect is more obvious. In addition to the time-consuming preparation phase before processing, the allowable continuous working time of the entire laser also has to be used. The lifespan is not very satisfactory either. ? Hou Xun is already quite old and may be forced to withdraw from the front line of scientific research at any time due to physical reasons. Therefore, he is even more eager to seize this last opportunity and personally implement the technology he has studied for many years. Furthermore, to achieve perfection I have considered this before. Chang Haonan replied somewhat helplessly: However, current research generally believes that the road to copper-oxide superconductors has been exhausted. The upper limit is basically around 130K, and it can only be realized at an extremely high pressure. There is almost no possibility of being put into application..." Since we have decided to go in the direction of computational materials science, high-temperature superconductivity and even room-temperature superconductivity will definitely be a technical difficulty that must be overcome sooner or later. ?However, before his rebirth, Chang Haonan did not know much about the field of superconductivity, so he was unable to gain as much foresight as in the aviation field. The situation can only be understood by relying on some papers of this era. ? He ??may have heard of some concepts of iron-based or nickel-based superconductivity, but after checking a series of information, he found that in 2001, the academic community still seemed to believe that iron was not conducive to the formation of superconductivity. Obviously, there should have been an evolution at a theoretical level. So the workload involved probably wont be too small. Chang Haonan currently does not have much time to systematically engage in research in this area. ??If you just make a few scattered superconducting materials based on the fragments of words you heard in the previous life... It may not be difficult to write about Nature or Science. ?However, this is not what Chang Haonan really wants. He is not short of those papers. On the contrary, it is possible for competitors to notice this direction in advance. Hence, superconductivity is an important but not urgent issue in Chang Haonans timetable, and is ranked relatively low. ?Looking at Academician Hou who looked melancholy, he wanted to say a few words of comfort, but for a moment he didn''t know how to speak. You can''t tell people that if you insist on living a few more years, you might be able to see that day... Fortunately at this time, the long spell casting movement is finally over. ?A weak, but clear and crisp sound of "pap-pap-pap-pap" interrupted the somewhat oppressive silence at the scene. ??This is the sound made by the ultra-short laser when it is working. At this time, the laser processing light source has also been immersed in the salt solution together with the workpiece. Invisible to everyone, the laser beam passes through a series of components such as the pump cavity, aperture, output mirror and beam expander, continuously intensifies and narrows, and finally emerges from the partial reflector and hits the turbine blade to be processed. On the surface. After 10 femtoseconds, due to the intense inverse bremsstrahlung radiation, the electrons around the metal atoms began to absorb the laser energy, and the average kinetic energy increased rapidly. In the following 90 femtoseconds, the increasingly violent collisions between electrons began to affect the vibration energy of the metal atoms themselves, and the molecular groups that were originally firmly "bound" together by the binding energy began to become active. Finally, within a time scale of less than 1 picosecond, the energy possessed by the particles breaks through the binding energy that binds them together. Like a city wall hit by a trebuchet, in microscopic "explosions" one after another, Falling off the surface of the material Human beings cannot accurately observe this process through any sophisticated equipment, but it does exist. And, according to the settings of this experiment, it will happen 500,000 times every second. Time passes by minute by minute. For the people sitting (standing) around the equipment, they can only see the dazzling green light still shining through the dark glass, and the monotonous but rhythmic snapping sound to judge that the equipment is still in working condition. All we can do is wait. Finally, after two hours that lasted as long as two centuries, the instrument''s working status indicator light changed from red to yellow again. This means that the machining process has been completed. ?As long as the working fluid is discharged and the equipment is cooled, this round of processing will be officially completed. ??It was still Zhong Shihong, who opened the cover covered with dark glass and carefully took the blade out from inside with both hands. It is no exaggeration to say that the first time he held his own child, he had never used such gentle movements. Mr. Chang, look. ?Zhong Shihongs voice was trembling. From the appearance, you can already see rows of neatly distributed basket-shaped air film holes on the surface of the blade. ?This rather complex hole shape is one of the key factors that enable the turbofan 10 to achieve "three and a half generations" performance using relatively backward materials. But at the same time, it is also the culprit that has caused the delay in completing the ramp-up of its production capacity. ?Of course, the processing effect is impossible to see with the naked eye. So after appreciating his masterpiece for a while, Chang Haonan calmed down and then ordered: Hurry, put the samples in bags and seal them, and send them to the next door for inspection! "yes!" Zhong Shihong stood upright, found a sealed bag as quickly as possible, and quickly left the test workshop with another technician. ?Four years ago, when Chang Haonan improved the drilling process for the Turbojet 14, this type of inspection even required a special flight to Lianhai to do it. Now, there is a fully functional testing center in the main building of the Torch Laboratory less than 100 meters away. It can be said to be a shotgun exchange for a cannon. The results of spending a lot of money are also shown at this critical moment. Even before it was time for lunch, the two people ran back happily. ?In addition to the samples I brought back, I also have a test report. Report to Mr. Chang! Zhong Shihong came to Chang Haonan. Perhaps he was breathing unevenly due to running. After taking several deep breaths, he opened the report in his hand: According to the inspection of a total of 45 air film holes on the surface of the workpiece, the hole diameter, positioning accuracy, and hot-melt layer thickness of all air film holes meet the production requirements. The roughness and curvature of the inner surface of the holes slightly exceed the requirements. , but still better than the optimal result after EDM..." ? After listening to this report, Chang Haonan finally felt relieved: Comrades. His tone was obviously filled with suppressed excitement: I declare that the first round and first production test of the ultra-short pulse laser processor was a complete success! The moment Chang Haonan finished speaking, cheers resounded throughout the workshop. ?Especially on Academician Hous team, many people even had tears in their eyes. ??If it werent for the tight string of safety regulations, Im afraid someone would jump three feet high It is normal for the first trial production to not be able to obtain a product that fully meets the requirements. On the one hand, the processing speed, including the processing effect, must still have an optimization range. Otherwise, there would be no need to bother with trial production and it would just be commercialized directly. On the other hand, as long as the parameters such as positioning accuracy and hole diameter that are not easy to modify are OK, even if the remaining parts are beyond the allowable range, there is still a subsequent finishing process that can be recovered. Achieving this result has exceeded the psychological expectations of everyone present. Next, as long as the test proceeds step by step, it is only a matter of time before a relatively optimal set of process parameters is obtained. in other words. The mass production of Turbofan 10 is coming soon! (End of this chapter) Chapter 906 The production capacity is too high and there are worries Chapter 906 The production capacity is too high, and there are also troubles Originally, Chang Haonan had reserved two and a half months for the entire trial production process. In other words, it can be completed before the beginning of September, or at least the process parameters can be basically determined. As for the reason Very obvious. If there are no major changes to the timeline, then starting from September, there will be constant big news in the remaining months of this year. In his previous life, in 2001, he was still studying hard for his PhD. In hindsight, he only knew about the drastic change that could be called a turning point in history through only a few words in newspapers and TV. Since we had just experienced a plane collision in the first half of the year, our reaction at that time was very simple You really deserve it. ?Of course, Chang Haonan really couldn''t do anything else at that time, so he could only vent in his heart like this. But in any case, this did objectively result in his lack of understanding of what happened throughout the fourth quarter of 2001, making it difficult to plan in advance as he did during the Allied operations. You can only take one step at a time. Therefore, although Chang Haonan will most likely not be able to directly participate in the decision-making this time, by that time, he will definitely have to allocate extra energy to pay attention to the development of the situation. ?However, it turned out that he was overly worried. The trial production process progressed far faster than he expected ?This is not entirely because of how efficient the two teams are, but because Chang Haonan''s initial thinking was a bit off the mark. His two and a half months were the time set aside to find optimal processing conditions. But in fact, the air film hole of the turbofan 10 can be made by traditional electric spark technology and the hand work of a skilled craftsman, and it does not need to be so extreme. At least not for Liming Factory. So only one month later, starting from the beginning of August, trial production has begun to produce products that meet the process requirements. Although at the beginning, the yield rate was still at a relatively low level. But no matter what, it is much better than the situation of EDM that makes the listener sad and the listener weep. Therefore, by mid-August, Zhong Shihong directly led a team back to Liming Factory and brought a month''s supply of semi-finished turbine blades and turbine disks. Thats right, he plans to use this engineering prototype directly to process the air film holes of the mass-produced turbofan 10 Since we have to try it out anyway, we might as well make good use of the production capacity here. Unsurprisingly, the prototypes soon outnumbered the production models ?According to Chang Haonan''s calculations, under ideal circumstances, taking into account the improvement of production efficiency and yield rate, the ultra-short laser process can be an order of magnitude more efficient in drilling holes than the past EDM process. Of course, this does not mean that the production capacity of turbofan 10 can be directly increased to 10 times. After all, as the drilling efficiency has improved, there will be other speed-determining steps. ?For example, the finishing of high-pressure compressor blades, the coating speed of heat-resistant coatings, etc. In these links, Liming Factory has actually used international mainstream, or technologies equivalent to international mainstream. What restricts the improvement of production capacity is the proficiency of workers. And more importantly, order volume Although China''s GDP has advanced four years compared to the previous period, surpassing Italy and France in the second quarter of 2001 and ranking fifth in the world, and is only one step away from the fourth-placed UK, overall, it still belongs to a relatively backward developing country. Money is needed everywhere. ? It must also be taken into consideration that neighboring countries and major competitors should not be overly stimulated. Therefore, this year, that is, 2001, the budget allocated for national defense construction is 220 billion yuan. Equivalent to approximately US$26 billion. ? is about 1/12 that of the United States. This is the result of an annual growth of at least 15% and a maximum of 20% since 1997. So, dont look at the previous time when 20 turbofans were built every year, both the Air Force and the aviation industry complained that there were not enough. ??If we can really make 200 units a year in the future, then they wont be able to eat it... Mr. Chang. ?Looking at the test report with increasingly better data, Zhong Shihong looked slightly melancholy: Cant we really let Factory 112 and Factory 132 increase their production capacity? After the production capacity potential gradually increased, he even became much tougher than before in his speech. ?When facing my colleagues from the Aviation Industry Group next door, my attitude directly changed from "please be gentle" to "have you not eaten?" Ahem In short, the production capacity potential of turbofan 10 is now very obvious, so Zhong Shihongs concerns have gradually shifted from pure technology to business. ?It is really uncomfortable to have orders for only 50 or 60 units despite having the ability to produce hundreds or dozens of units a year. Its difficult...the three services plus the second artillery force put a lot of pressure on equipment replacement, and the resources that can be specifically allocated to the fighter aviation force are already limited. Chang Haonan put down the pen in his hand and shook his head: Including the J-11B and J-10A, we can produce about 30 aircraft per year, which is already partially exceeded my expectations. On the one hand, the J-10E has no customers for the time being, and on the other hand, it can produce about 30 aircraft. In terms of adaptability, it is still the power of AL31F. "And to take a step back, even if there are so many orders, the 112 and 132 factories themselves have not completed the expansion. Especially the 132 factory has planned a brand new factory area. At the moment, even if it is running continuously, it will not be able to produce much production capacity... " 200 engines a year, even excluding engine replacement and spare parts, can be converted into a production of about 100 new fighter jets. This number could not be reached every year even before Chang Haonan was reborn, let alone now. The main reason is that our current production potential is too great. Zhong Shihong touched his chin: The troubles of happiness ?Chang Haonan was originally going to change the topic, but when he heard what the other party said, he suddenly had an idea. The production capacity of turbojet 14 is actually not low. The reason why we have never encountered this problem is because the Persian F4 upgrade project takes up hundreds of units of production capacity at a time. ?Of course, in the international market, there is currently no model that requires a high-thrust engine like the Turbofan 10. After all, the United States and Russia both have their own power models and do not need to import them from China. But if you open your mind... What if the complete engine is not exported? The current production capacity potential of Liming Plant is actually mainly accumulated in the turbine disk and turbine blades. ?This is a problem unique to the world. You must know that the turbine structure is one of the most precious parts of the entire aviation engine. The situation of the vast majority of aviation manufacturers is similar to that of the previous dawn, with total output being dragged down by turbine components. Its just not that exaggerated. Hence, there is definitely a market for exporting turbine blades individually... Its just that something is needed now to make the world realize Chinas capabilities in this area. Thinking of this, he put down the pen he had just picked up, and then picked up the phone receiver. But after thinking about it for a while, I put it down again. Even internal calls are not foolproof. So according to regulations, some really core things need to be conveyed in person. Old Zhong. ?Chang Haonan looked at Zhong Shihong, who was already lowering his head to sort out the report not far away: The next time you return to Shengjing, remember to go to the 606 Institute to find Comrade Liu Yongquan. Zhong Shihong has to go back to Liming Factory every half month to report on the work situation, so he is more suitable to do this than Chang Haonan, who is based in the capital. Mr. Liu? ?Zhong Shihong stopped what he was doing and looked back at Chang Haonan: But I remember... he should have been transferred away to guide Snecma Group in improving the M88 engine? Yes, thats why I asked you to find him. Chang Haonan nodded: You tell Comrade Yongquan that when you revise the M88 engine design next time, you can consider modifying the cooling film holes on the turbine structure and changing the current two-dimensional forward tilt hole into a three-dimensional dustpan-shaped hole. Before you leave, I will prepare a technical document, and you can just hand it to him along with it. Three-dimensional structure ?Zhong Shihongs initially dazed expression gradually became enlightened: Same design as the turbofan 10? Thats right. ?Chang Haonan showed a meaningful smile: The structure of the film cooling holes on the turbine is different from the inner wall of the combustion chamber, and is relatively independent of the design of the engine itself. Therefore, after different types of engines are replaced with the same film holes, the cooling efficiency will not change much. It just so happens that the French want to further improve the performance of the M88, so lets help them by the way No matter what hole type, the processing difficulty of two-dimensional holes is much lower than that of three-dimensional holes. Furthermore, the Western military currently generally uses electrochemical machining for hole making, and its process parameters are relatively complex. When relying mainly on experience, the process development cycle is measured in years at the fastest. So, if the M88 really changes the air film hole structure, then Snecma will not be able to achieve mass production in a short time. But if the Rafale fighter jet wants to compete with the EF2000, the upgrade progress cannot be delayed. Orders will naturally flow to Liming Factory... ??Moreover, the French will not suffer. The cost of ultra-short laser processing is no higher than that of electrochemical processing. Combined with the actual situation in China, even if enough profit margins are left, the final product in Snecma''s hands may still be more expensive than what they make themselves. Cheap. A win-win situation, a win-win situation! (End of this chapter) Chapter 907 The postponed Paris Air Show (there should be one after 0 oclock Chapter 907 The postponed Paris Air Show (there should be another chapter after 0 o''clock, counting today) ?Although Chang Haonan has already made great plans, this kind of thing cannot be rushed. Thanks to the good basic technological level of the French and the high performance of the CFM56 core machine itself, the foundation of the M88 engine is actually not bad. It can even be said to be very good. It may not be as powerful as the EJ200, which is designed according to the fourth-generation engine standard, but it is at least stronger than the F404 and RD33 of the same level. It was just that the French lacked experience in the dual-rotor engine, coupled with their previous lack of vigilance and over-reliance on General Electric as a "partner", which led to the lameness of the project. In the end, they had to treat a dead horse as a living horse. The mentality is to find help from the Chinese people. Fortunately, Chang Haonan had excellent medical skills and was able to save him in a short time. ?However, twists and turns led to twists and turns, but after a round of design modifications and solving several of the most critical pain points, the M88-2 engine still showed its excellent potential, and the testing progress was very fast. ?In just a few months, all four of the Rafale fighter jets'' flying prototypes - C01, B01, M01 and M02 - have been replaced with M88-2 and are undergoing intensive test flights together. ?Especially the carrier-based M02 aircraft, it has even performed dozens of takeoffs and landings on the aircraft carrier Charles de Gaulle In fact, compared to the French Air Force, which at least has Mirage 2000s, and Dassault, which at least has Mirage 2000s for sale, the French Navy, which has officially taken over the Charles de Gaulle aircraft carrier three months ago, is the one that is most anxious to get it right now. Rafale fighter jets in service. It''s already 2001, and their carrier-based fighter is still the F8 "Crusader" designed nearly half a century ago. ?That is even a model with a cannon as its main weapon... In short, it is impossible for the French to agree to make any major changes to the M88-2 at this juncture. So whether it is optimizing the air film hole design or having the Liming Factory to OEM the turbine blades, we have to wait until the M88-3. Speak of it, Mr. Chang. Zhong Shihong raised his head after recording the experimental data: This weekend, this years Paris Air Show is about to open. I dont seem to have heard that our group has any plans to participate in the exhibition? Well, this matter was decided at the meeting at the beginning of the year. Chang Haonan replied without raising his head: The models we have on hand, the turbofan 10 is not convenient to take out for the time being, and the turbojet 14 and QC130 are a little behind, which affects our current image. "As for other models, they are either produced under license from foreign engines, or they are still on paper. In short, no matter how they are set up, they are not suitable, so this year we simply did not bring any physical objects to the exhibition and asked the publicity department to make a few. There is also a place for large-scale models on the display board. But you dont have to worry. This air show is held in France after all, so our group has also arranged some small surprises for our colleagues. Even the domestic exhibition team does not know about this..." At first, his answers were very smooth. But after speaking, the voice gradually became quieter. There seems to be something wrong. No, wait a moment... This time, Chang Haonan finally raised his head: The Paris Air Show...shouldnt normally be held in June, why is it this weekend? As he spoke, he took a special look at the calendar hanging next to him. Its August 14th. Because the Aerospace Power Group had no official plans to participate in the exhibition this year, and had been extremely busy before, Chang Haonan never cared about this matter after the Spring Festival. He always thought that it was handled directly by the deputy general manager in charge of publicity business in the group. . It turns out that it hasnt opened yet? Zhong Shihong, who was not far away, was also a little confused by this question. He hesitated for about half a minute before speaking: Well...in April this year, the French Aerospace Industry Association issued an announcement saying that because Le Bourget Airport was undergoing hardware upgrades and routine maintenance, the air show was forced to be postponed until the end of August..." Are you kidding ?Chang Haonan was almost amused by this rhetoric: The Paris Air Show has been held for almost 100 years, but airport renovations dont even know to avoid June in odd-numbered years? Well...this is what the French official say. Zhong Shihong touched his chin: But we generally feel that it is because if it is held in June as scheduled, several of their key models will not be available yet. If the air show held in Paris makes the British shine, it may be better for the French not to hold it. This explanation is quite reasonable. At that time in June, the M88-2 was scheduled to be installed and tested soon. For safety reasons, it is unlikely that a model that is still in the early stages of testing will be directly used for flight demonstrations. But the EF2000 next door is definitely flyable. Like Gust? Chang Haonan asked with a smile. He found that his influence on the timeline had gradually penetrated into these unimportant details. ?However, precisely because it is not too important, it can be viewed from a more relaxed perspective. But Zhong Shihong shook his head slightly: Mainly, certainly, but not completely. "Last month, Airbus announced the overall design plan for their super-large passenger aircraft, with 4 engines, 555 seats, and a range of 15,000 kilometers. It plans to make its first flight in 2005 and put it into commercial operation before the end of 2007... and officially changed its name to A3XX. A380, I guess part of the reason is waiting for this, after all, it is a model that surpasses the Boeing 747 and is enough to subvert the status quo of international air transportation. Speaking of the Airbus A380, Zhong Shihong still showed a look of envy on his face. After all, even counting the models currently under development, the largest aircraft China can build is the 110-ton C909. The largest aircraft designed by ourselves is still the 90-ton Y-9. The A380 has an empty weight of 245 tons and a maximum take-off weight of 575 tons. A proper Big Mac. Once put into production, it will become the largest aircraft currently in production. Take it step by step. ?Chang Haonan also heard some clues from the other party''s tone: In a few years, when the situation of the Turbofan 20 stabilizes, we should be able to initially establish a 200-ton model, similar to the Il-76. Later, there will be plans for 300-ton or even larger aircraft. He is a man who has lived two lifetimes, so he is quite calm about this kind of news. Anyway, compared with the hellish state in the previous life in 2001, the current situation has been improved countless times... And the Airbus A380 model generally feels a bit untimely. ?When the project was formally established, the super large passenger aircraft was already a bit like the sunset. When it was put into operation in 2007, it completely missed its golden period. ?Of course, Airbus may not be aware of this at the moment, but after all, it still has to consider things other than commercial operations They need a model that is comparable to the 747 as a symbol of their challenge to Boeing. So, for this A380, even if we know there are uncertainties, we still have to go ahead with it... At almost the same time, Chang Haonan and Zhong Shihong accidentally chatted about the Paris Air Show. France, northeastern suburbs of Paris. An air formation consisting of five aircraft disbanded over Bushell Airport and entered the landing route according to air traffic control instructions. In fact, as a large airport with three runways, the route management here should be more efficient. However, due to renovations, the longest concrete runway 07/25 was temporarily closed. Only the two asphalt runways 03/21 and 09/27 were available. In addition, the aircraft coming to participate in the air show were intensively approaching, which caused some air pollution. Congestion. In an Airbus A320 that was moved to the back of the landing sequence and was therefore still hovering in the sky, Guo Ruiqing, director of the Science and Technology Development Department of the Aviation Industry Corporation of China and leader of the Chinese exhibition delegation, opened the sunshade and looked through the porthole glass. under the wing. Where his vision converged, a nimble fighter had opened the speed brake at the tail and pointed its nose at the shortest runway, 09/27. It is the J-10E fighter jet that participated in the air show for the first time. The weather in Paris is unusually sunny. ?From Guo Ruiqings perspective, he could even vaguely see the two Air Force emblems above the triangular main wing of the plane Even though both types of J-10 have not yet officially entered service with the Chinese Air Force, it is a common practice in the aviation industry to spray the participating aircraft with the livery and emblems of their country or target customers in advance. As a puff of smoke blew up between the rear wheel and the runway, two parachutes were pulled out from the root of the vertical tail, and the aircraft was controlled to stop in the shortest possible time. The entire landing process went smoothly. "Speaking of which, we have to thank the French for helping us unintentionally..." ??Yang Quanzhi, the representative of Rongfei Group sitting next to Guo Ruiqing, looked at the J-10E that had successfully landed, and his tense body finally relaxed: If they hadnt suddenly postponed the air show for two months to let the J-10E complete the last few test links, then we might have had to bring the third child to the exhibition again this time..." "yes." ??Guo Ruiqing said and sat up straight again: The Aerospace Power Group didnt bring anything real this year. If we pull our hips again, the scene wont look good Even though he said this, he actually still had half of the words hidden in his heart that he didnt say out loud: If the aviation power side really brings a real turbofan 10 guy, then we will become a green leaf again..." (End of this chapter) Chapter 908 There are legends about me everywhere in the world (New January, please vote for me) Chapter 908 There are legends about me everywhere in the world (New January, please vote for me~) After circling for about 20 minutes, the Airbus A320 finally received the landing order. For the Chinese delegation, participating in the Paris Air Show is actually something they are familiar with. More than ten years ago, China Aviation Industry came here for the first time when it went abroad. In fact, if you look at the delegation level alone, this year is not even the largest one. ?However, the equipment brought is definitely heavyweight ?The entire Chinese delegation has a total of 5 aircraft, excluding one A320 responsible for transporting personnel and one Ilyushin 76MF responsible for support tasks. The other three will participate in the exhibition in the form of ground display + aviation performance. They are one J-10E, one JJ-9E and one FBC1A, also known as JH-7A. Because the J-7F has participated in too many air shows, and the appearance characteristics of the second-generation aircraft are still relatively obvious, it ultimately failed to get a valuable spot. The delegation even considered taking a C808 passenger plane to Paris. ?In this way, there will be one more model that can be exhibited. But in the end, we still have to consider that after all, the C808 has just been put into commercial operation and is still at a high position on the bathtub curve of failure rate. Even when flying domestic routes, Hufei Group sometimes has to send engineers to participate in the guarantee, and it rashly flies long-distance international flights. The route requires three stops in the middle, so the risk is relatively high. So I chose a safer option. In any case, C808 has obtained airworthiness certificates from Europe, the United States, China and the CIS, and there will be many opportunities to debut in the future. ??When members of the Chinese delegation descended to the apron through the ramp, the three exhibition aircraft that had landed early had already been towed to their respective booths. JJ-9E and FBC1A are parked normally on both sides of the entrance to the Huaxia exhibition area. But the J-10E was not together with the other two, but had other arrangements... ?After greeting the representatives of the organizations stationed in France and representatives of the air show organizer, Guo Ruiqing also arranged the task of decorating the exhibition area in an orderly manner. As for himself, he took several other people, including Yang Quanzhi, to wander around the air show area that had been divided into zones. Its not exactly just hanging out. In fact, the reason why the superiors asked him, the head of the Science and Technology Development Department, to lead a team to participate in the exhibition this time, instead of asking someone from the foreign trade or publicity department to take the lead, has another meaning - Take this opportunity to track and judge the aviation industry level of each participating country and find the future development direction. So, in addition to the normal air show-related tasks, Guo Ruiqing also needs to submit an industry development report for the new century after the air show. ??However, as the team leader, he would be extremely busy after the air show opened, and would not be able to spend a lot of time to see the conditions in other countries'' exhibition areas. ?So we can only take advantage of the period before the official opening of the air show to get as much useful information as possible. ??If we must find one special thing about this air show, it would probably be that the number of Asian countries participating in the show has increased significantly. In addition to China itself, which is already an old face, David, Japan, South Korea, and India also sent their own delegations. The scale of the exhibition area is not small. However, as a new face, most products still appear in the form of models or display boards. ?Especially Japan, due to restrictions on the three principles of arms exports, still attended in the name of "guests" instead of exhibitors. ?However, they still brought a C1 transport aircraft and a US1 seaplane for real-life demonstration These two models are unarmed and can be regarded as "edge balls" in a sense. ?However, in addition to these two conspicuous big guys, Yang Quanzhi keenly noticed that there were two seemingly inconspicuous models placed in the corner of the Japanese exhibition area. ?One of them is highly similar to an F16, but there are some slight differences in the shape of the wings. As a manager of the Rongfei Group, he was naturally able to recognize that this was an F2 fighter jet that the Self-Defense Force had just put into service a few years ago. Although it is designed based on the F16, its size, especially its wingspan, is actually much larger than that of the F16, but its power has not changed. Compared to a fighter, it is closer to an attack aircraft or a fighter-bomber. In fact, this is indeed the case in the establishment sequence of the Air Self-Defense Force. As for the other one next to it... Even as a model, it is a bit too rough and can only be regarded as a design concept. To be honest, its a bit like a combination of F18 and F22. Even Yang Quanzhi couldn''t recognize it for a while, so he had to get closer and take a look. Advanced Technology Demonstration Machine Project X (ATD-X) ?Yang Quanzhi pushed up his glasses, and at this moment he heard a shutter sound coming from behind him. ?He turned around and found that the team leader Guo Ruiqing was standing behind him, holding a camera in his hand. "I said Lao Guo, this little... this Japanese guy is not very honest..." It was not until entering the next Indian exhibition area that Yang Quanzhi spoke to Guo Ruiqing in Chinese. ?Two real transport models were sent to attract attention at the door, but there were many combat models inside to test the reactions of various parties. It is very consistent with the Japanese character who likes to do sneaky tricks. Can see it. ??Guo Ruiqing nodded: In recent years, as our development speed has accelerated, the United States has also gradually relaxed its control over Japan and South Korea, especially Japan. If nothing else, Japan does not have wind tunnels or high-altitude experiments. Things like Taiwan, like the ATD-X project just now, would be impossible to establish without the help of Americans. While talking, the two came to an airplane model on the Indian side. Single engine, light weight, air inlets on both sides, tailless large delta wing... Without a doubt. LCA brilliance. Of course, it is now 2001, only 17 years have passed since the LCA project was officially established. ?For a third-generation fighter, this span is not too exaggerated. In addition, the prototype has never made its first flight, so no one knows what the details of this model are. Therefore, adhering to the principle of showing leniency to the enemy, Guo Ruiqing still carefully took photos and records of this model. Compared to their Japanese counterparts who were quite cold and even a bit hostile just now, the two Indian guys standing here are very enthusiastic. ?When I saw someone finally stopping in front of their booth, they started talking with each other with witty words regardless of who they were. The only problem is that since Chinglish and Hinglish are not in the same language system at all, and the two of them speak very fast, Guo Ruiqing and Yang Quanzhi look at each other, and no one understands. What on earth is the other person talking about. In the end, I could only briefly express my friendship and blessings, and then ran away at the speed of light. After that, Korea and the Davidic Kingdom had even less bright spots. Therefore, after briefly visiting the situation of his Asian counterparts, Guo Ruiqing decided to focus his main efforts on the European exhibition area. It is said to be the "European Exhibition Area", but it is actually the main exhibition area of ??this air show. In order to facilitate the media to take unified photos, the more gimmicky models were parked together before the opening. Within a few steps of walking in, everyone had already seen many classic scenes such as the F15E and Su-27SM sitting side by side, as well as the head-to-head confrontation between Rafale and Typhoon. He is really not afraid of big things. The J-10E brought by China, together with Saab''s JAS39, was parked not far from the European Shuangfeng. Good guy ??Guo Ruiqing raised his camera and took a group photo of the four planes. Four models that all adopt the canard + delta wing design appear in one photo at the same time. Im afraid there wont be many opportunities like this in the future Immediately afterwards, he walked close to several airplanes. ?And Yang Quanzhi followed closely behind. The aviation industry, especially the aviation industry Rongfei, is quite concerned about gusts and typhoons. After all, it is considered the same-level product as the J-10E. Although its not really competitive in practice In addition to aircraft, Britain actually also brought its power, the EJ200 engine. It is placed next to EF2000 and displayed as a separate exhibit. As an old enemy that has been in tit-for-tat with the United Kingdom for hundreds of years, the French were naturally not to be outdone, and also put out the M88 engine alone. In this case, since everyone came, Guo Ruiqing read them one by one in order. until ??When he walked to the display board of the M88-2 engine, he suddenly saw several square characters on it. To be precise, its a LOGO with a few square characters printed on it ?An abstract shape that looks like an aircraft engine fan spinning. It says below China Aviation Development Co., Ltd. Further down is the English abbreviation. AECC. Thats right, the LOGO of China Aerospace Power Group. and the Snecma Group''s LOGO are printed side by side in the corner of the M88-2 engine display board. "ha?" Looking at this familiar yet unfamiliar name, Guo Ruiqing felt numb all over: What about the most basic trust between people? Isnt it better not to bring any physical objects to the exhibition... (End of this chapter) Chapter 909 No, am I right to Mr. Chang? Chapter 909 Isnt it right? I am talking to Mr. Chang? In fact, if possible, Snecma does not want to print China Aviation Developments LOGO on the M88 engine display board. As the pride of France, the power used by Rafale is mixed with the blood of China. ?Although it sounds great to do, it doesnt always sound good when told about it. However, lets talk about it and make trouble again. ??Contracts signed in black and white must still be recognized ? No matter from which level you look at it, M88 is a model jointly developed by France and China. ??If the relevant information about the latter''s participation is really erased, Snecma will be responsible if any mistakes are made in publicity in the future... So, although they have reduced the area of ??the two LOGOs as much as possible. ??And set it in the lower right corner where it is most easily blocked by the display frame. ?Even, the background of the exhibition board was specially made into a blue color that is close to the logo of China Aerospace Power Group. But it is not difficult for those with sharp eyes to see it. Eh? ?Yang Quanzhi behind him also discovered this "bright spot" at this time: "I said Lao Guo, can this...be considered an exhibit of the Aerospace Power Group?" In fact, compared to Guo Ruiqing, whose main task is to collect intelligence information, Yang Quanzhis purpose of coming to Paris this time is simpler. It is to promote the new model and see if we can find possible orders. So, he is actually more concerned about these issues than the former. ??Guo Ruiqing touched his chin: Strictly speaking... they just said before that they would not bring physical exhibits from China... Hearing this sentence, Yang Quanzhi called him a good guy in his heart. It turns out that the foreshadowing has been laid long ago, and we are just waiting here... As middle and senior managers of the Aviation Industry Group, the two of them naturally knew about the cooperation between the 606 Institute and Snecma to improve the M88 engine. Even know some of the details. But I never thought that it would be carried out in such a straightforward form of "joint research and development". You must know that the aviation industry has also engaged in de facto cooperation with Europeans in recent years. For example, the most typical NH90/straight 12. ?Nearly 40% of the research and development work for this model was completed by the Bingfei Group. It can be said that the substantial content far exceeds all other projects. But after all, everyones name is NATO Helicopter, so its not easy to do it too blatantly. In order to avoid suspicion, the two parties still used the form of suppliers to each other to cover it up. Therefore, only the national flags of France, Italy, Germany, and the Netherlands have been painted on the NH90 exhibition boards. Correspondingly, Chinas Zhi-12 is also self-developed on the surface. Anyway, dont ask why they look alike. As long as there is a clear understanding, thats it. ?Of course, this time, the Aviation Industry Group did not bring the Zhi-12. ?First, the range of a helicopter is too short compared to a fixed-wing helicopter, so it is impossible to fly over from other places. Renting an An-124 is a huge expense. ??Another one, the current Zhi 12A is supported by two TV3-117VMs that are not small in size. The performance is decent, but the shape of the big-headed son is really not very pleasing. It would be awkward to compete with NH90. Furthermore, in Chinas traditional military sales market, there is really not much demand for such high-end helicopters. Fortunately, the Bingfei Group still has the AC139, a super cash cow that makes three people happy, and it is not in a hurry to open up new military markets. ??But looking at the M88 engine in front of him, Yang Quanzhi still felt a little regretful: If only we could sign this kind of cooperation agreement with Eurocopter when we were building the Z-12... Tsk tsk. ? NH90 is now parked at a booth about 200 meters away from the two of them, and many colleagues from participating countries are already standing around it. ??If a five-star red flag can be added to it. The effect should be very explosive. China''s aviation industry is now at a stage where the development speed is so fast that not only outsiders, but also our own people sometimes cannot keep up with the reality. Therefore, whether externally or internally, we urgently need to seize every opportunity to carry out publicity. Establish the image of Chinese products first. ?However, his fantasy was quickly dispelled by Guo Ruiqing next to him: "Well... the situation at that time was still different from now, so we can''t generalize." The latter was changing the film in his camera and replied without raising his head: "When we participated in the NH90 project, on the one hand, NATO seemed to be monolithic, without so many obvious internal flaws later. On the other hand, the image of our Chinese products was still completely negative. Others would definitely follow our lead in publicity. Cut it, otherwise it may be difficult to sell..." ? ? Guo Ruiqing is about 10 years older than Yang Quanzhi, and has been promoted to middle management during the head office era. The latter was still an ordinary grassroots employee at the time, and gradually became successful after the two companies separated. Different experiences naturally lead to different perspectives on things. Im a little impressed when you say that. ?Yang Quanzhi took his eyes away from the M88 display board: It seems that there was a fraud scandal involving Japanese companies in Europe back then. It is said that it was because of the NH90 project that they pulled up the carrots and brought out the mud? Indeed it is. ??Guo Ruiqing has a relatively rich understanding of events in his early years: "Those devil companies are very clever when it comes to counterfeiting. They even cut corners and cut materials. If you use it according to the normal margin, you won''t find any problems for ten or eight years. If we hadn''t happened to They have seized a very narrow opportunity on a part of NH90, I guess they can continue to hide it..." Speaking of this matter, normal Chinese people, especially members of the aviation industry system, would feel proud. Therefore, Guo Ruiqing also spent about ten minutes with great interest in talking about a series of wonderful operations that year. Of course, to put it bluntly, they still have their own problems. Finally, Guo Ruiqing concluded: If there was no such thing as quality inspection fraud, we would never have been able to find this fatal loophole..." After finishing speaking, he hung the camera around his neck again and prepared to take pictures of the details of the EF2000. The modified self-use J-10A is somewhat similar to the Typhoon in its cross-sectional shape. Especially the idea of ??mainly using the relatively flat belly space to carry a large amount of ammunition can be said to coincide completely. In contrast, the Rafale prefers to carry a larger number of small-sized ammunition in the under-wing space. ? Only the centerline pylon on the belly of the aircraft has been additionally reinforced to carry ASMPA-R missiles equipped with nuclear warheads as a theoretical air-based nuclear deterrent. ?However, similar to the situation of the Chinese Air Force, the French Air Force actually has no nuclear-related positions, so this nuclear deterrent also only exists in theory. Just when Guo Ruiqing raised his camera and was about to press the shutter, Yang Quanzhi, who was hurrying to catch up with him, was still stuck on the topic. So Lao Guo, according to what you just said, there happens to be a component on the NH90 that is designed according to the upper limit of the models performance, so it was exposed that the Japanese had falsified the test report... Obviously, Yang Quanzhi had been thinking about this matter just now, so his reaction was half a beat slow: Doesnt that mean that this matter has been planned since I participated in the design of NH90? It would be outrageous to say it is a coincidence..." Of course. ? Guo Ruiqing almost lay on the ground, taking photos of the position of the EF2000 belly pylon, and replied. Im going to ?Yang Quanzhi looked dumbfounded: Whose idea is this? It can be so long-term... Wait a minute...you dont know? ??Guo Ruiqing stopped pressing the shutter and looked up at Yang Quanzhi in disbelief. ?But he quickly reacted: "Oh yes...you should have been at the Institute of Special Technology at that time, so it''s normal that you haven''t heard of it." ?This reaction made Yang Quanzhi a little confused: WellI dont know what I dont know NoI mean For a moment, he felt that his language module might be burned. The entire NH90/Zhi-12 project, as well as the series of things that followed, were all done by Mr. Chang back then. ??Guo Ruiqing deliberately lowered his voice, causing Yang Quanzhi, who was still hesitating to organize his words, to fall silent immediately. ?After a while, the latter spoke again: "Mr. Chang...you mean...that...that Mr. Chang?" ??He said and pointed to the M88 engine promotional sign next to him. Although he didnt say it directly, the meaning was already obvious. What if? ??Guo Ruiqing got up from the ground and patted the dirt on himself: There is no second CEO Chang in our aviation industry system, right? "ah?" ?Although he had already made some speculations just now, Yang Quanzhi still felt a little scared after getting the concrete results: I heard...the reason why we at Rongfei divided the J-10 into two versions, A and E, was also the suggestion left by Mr. Chang back then. ?Yang Quanzhi is not from a technical position, and he was transferred to Rongfei not long ago, so he mainly hears and hears a lot of news. Unexpectedly, Guo Ruiqing nodded without surprise: I know that. You know all this? ?Yang Quanzhi felt a little embarrassed What I thought was a secret turned out to be something that everyone in the world knew about. "certainly." ??Guo Ruiqing continued to make another cut: Moreover, not only the J-10E, but also the J-7F and the J-9, which have been mainly exported in recent years, were all launched when Mr. Chang was still at the head office. ?) ! ?Yang Quanzhi opened his mouth several times in succession, but no sound came out. Just stared at Guo Ruiqing and blinked. ?His current feelings can be summed up as - No, Im going to fight Mr. Chang on the opposite side? You should know that before this trip, the leader had a special talk with him. It is said that he hopes that in recent years, the aviation industry group will not be surpassed by the aviation power group in terms of export volume. He also said that this task is very stressful. Although the opponent does not have much pure export business yet, it must not be taken lightly. At that time, he felt that the leadership was a bit unfounded. The result is now You tell me that the leading models currently earning foreign exchange from exports are all leftovers from the rival companys senior executives? ?Laughing to death, no wonder the leader vaccinated him in advance... ??Isn''t this equivalent to learning the basic rules of Go on the front foot, and then playing ten rounds of chess with Nie Sheng on the back foot? So...why didnt Mr. Chang stay at the group level when we split up? ?Yang Quanzhi asked in a bitter tone. "because" ??Guo Ruiqing also scratched his hair in distress: Because it is Mr. Changs personal opinion to separate the aero-engines to form a new group (End of this chapter) Chapter 910 new potential customers Chapter 910 New Potential Customers Leisure time is always short. According to convention, two professional days will be set up before the official opening of the air show. Thats right, it was before the opening. Because the opening ceremony is for the melon-eating public, it will be held on the first day of the opening day. ?Professional Day is only open to large Krypton households such as the military, defense companies, and military contractors. ??And of course there is the media. In fact, it is better to be more low-key. Because there is a high entry threshold, the passenger flow in these two days is not large. There is no pressure for air show organizers. But its different for exhibitors After all, an air show is not a car show, and you cannot expect individual users to buy your fighter jets or anti-aircraft missiles. Whether its publicity or order-taking, it actually all refers to the professional day ahead. The day the Chinese delegation arrived was Tuesday, August 14th. In other words, they actually only had one full day to prepare. Even though someone from the French agency has already called them, time is still tight. Therefore, until the morning of the opening day, ground crews were still gathering around several aircraft to perform maintenance and bomb hanging procedures. In order to ensure the range and take into account the requirements of the countries they pass through, the three fighter jets at the exhibition only hung three auxiliary fuel tanks during the transition. But at the air show, you must show your capabilities to potential customers. Especially J-10E. As a serious third-generation aircraft and the main product of China Aviation Industry at this air show, it has changed the mindset that China''s products can only rely on cost-effectiveness to win in the past. Although the overall performance is still a little behind compared to several of the latest third- and semi-generation fighter aircraft that have just entered service or have not yet entered service, at least in terms of design and production levels, they are completely comparable to mainstream models brought by other countries. ??If it were not for the conspicuous August 1st Army emblem on the wing and the AVIC logo on the vertical tail, most people would probably think that this is a fighter jet from a certain European country. Its a pity that the airborne ammunition we have on hand is still a little short of variety... Yang Quanzhi stood near the entrance of the Huaxia exhibition area and watched several technicians quickly replace the auxiliary fuel tank on the innermost pylon of the J-10E wing with a C802K anti-ship missile. In fact, the radar equipped with the J-10A/E does not have a ground search function. Even for sea surfaces with less clutter, the effective detection range is not optimistic. At least not as good as the JH-7 parked not far away. Hence, although the C802K can be connected to the fire control system through the data bus, it is definitely not in the list of commonly used ammunition for the J-10. ?However, Chinas current main equipment of precision guided munitions is still the imported KAB series. ??After traveling thousands of miles to participate in an air show, it is impossible to use your own aircraft to advertise other people''s bombs. Hence, we can only temporarily use anti-ship missiles to make up the numbers. but. Beyond everyones expectations. It was just a matter of making up the numbers, but it really produced a good effect. ?Shortly after the mounts of the three aircraft were switched to ground display status, a group of visitors wearing military uniforms walked into the Huaxia exhibition area. After roughly circling around in a circle, we finally stopped in front of the J-10E. At this time, Guo Ruiqing was instructing several technicians from the Third Aerospace Academy to modify the exhibition settings. Yang Quanzhi hurried over and patted him on the shoulder: Lao Guo, there seem to be a few officers from the Thai Air Force over there? Hearing these words, the former turned around suddenly, and then noticed a few people over there gathered next to the J-10E booth, chattering without knowing what they were talking about. The Thai army can be regarded as a regular customer of Chinese equipment in a sense. Its just that compared to other users who were forced to choose China when they were desperate, Thailand received generally good treatment in the arms sales market, with more options to choose from, so it was more picky. So the previous purchases were basically army and some naval equipment. As for the Air Force ?Only many years ago, Rongfei Group tried to export J-7M fighter jets to it, but unsurprisingly failed to use second-hand F16A/B. At least I have had some dealings with him. Its just that the guys brought by China now can be said to be a shotgun for a cannon. Dont talk about F16A, even if you face F16C, you dont feel guilty. Take two people to take care of it and see what indicators they focus on and what models of competing products they mainly consider. ??Guo Ruiqing said to Yang Quanzhi. "yes!" The latter came with a mission, so he quickly called a few people to get ready to come forward. "Wait a moment" Perhaps because he was worried that Yang Quanzhi was eager to achieve great results, Guo Ruiqing called him from behind again at this time: Pay attention to your image and attitude. Be enthusiastic, but also be reserved and dont be too deliberate. In matters like arms sales, the core is to look at the needs of the other party. Rushing to sell products online may not necessarily yield good results. ?Yang Quanzhi has just been transferred to Rongfei not long ago, and his enthusiasm in this area is still lacking. ?However, Guo Ruiqing is obviously a little worried. Before Yang Quanzhi could get close, several people from the Thai delegation over there took the initiative to surround him. Hello, I am Assistant Commander-in-Chief of the Thai Air Force, Padma Kitita. The first officer wearing the rank of lieutenant general stepped forward and shook hands with Yang Quanzhi. I am Yang Quanzhi from China Aviation Industry Group. If you have any questions related to the model and my countrys export policy, you can consult me, or I can contact a higher-level leader. ?Although Yang Quanzhi is not a professional technician, he did a lot of homework before coming here, and he is by no means a novice. We just have the idea of ??updating the fighter model, but we dont have any specific plans yet..." Lieutenant General Jedita This is not entirely a joke. In fact, the batch of F5 fighter jets currently equipped by the Thai Air Force are indeed very old, and the F16s purchased previously are not only second-hand but also early models, and even require an additional upgrade to obtain beyond-visual-range air combat capabilities. Hence, I have been thinking about changing my clothes a few years ago. But the plan cannot keep up with the changes. The financial crisis of 1998 almost brought the entire Southeast Asian economy to collapse, and Thailand was the first to bear the brunt. ? It was not until the new century that the reliance on Internet companies that gradually began to spread from developed countries began to ease. It doesnt matter. Your country is also a traditional business partner of our country. You can definitely contact us first. ?Yang Quanzhi also heard about the situation in the other party''s country. ?Furthermore, Bangkok Airways is also the first foreign user of the MA60 regional jet. There is still potential for transaction after all. After some simple greetings, Jedita got straight to the point: We just saw that the J-10E exhibited by your company is equipped with two C802K anti-ship missiles. So does this mean that this model can perform sea strike missions? This question can be said to be completely beyond Yang Quanzhi''s expectations. ?Before departure, the group leaders publicity focus for the J-10A was ground attack and air interception. Including the two 2/5 pylons under the wing, four equally unformulated Thunderbolt 12 medium-range air-to-air bombs were specially mounted on composite pylons that have not yet been finalized. In the end, it was the two C802Ks that were hung up to recharge that attracted the attention of customers... ?Of course, although he was complaining in his heart, Yang Quanzhis response was not slow: The radar of the J-10E is not optimized specifically for detecting sea surface targets, but if necessary, it can indeed carry up to two C802K anti-ship missiles with a range of 120km. As he spoke, he took Lieutenant General Gidita back to the J-10E booth: Of course, the J-10E uses data bus technology and can also be seamlessly adapted to other new anti-ship munitions developed by our country in the future. ?This is not false propaganda. The problem with the J-10s C802K is that the 1473 radars detection range of sea targets, especially small and medium-sized targets, is likely to not reach the range of the latter, resulting in a waste of missile performance. But other than that, there really are no other problems. (End of this chapter) Chapter 911 Needle "wind" relative to Chapter 911 Confronting the "Wind" ? Just when Yang Quanzhi used his sharp tongue to promote various aspects of the J-10Es performance to Lieutenant General Gidita. Over Bushell Airport. ??The much-anticipated flight show has also begun. In fact, in the traditional air show schedule, there is generally no tendency to arrange flight performances into professional days. First of all, there are too few visitors, so it would be a waste to take off all the time. Secondly, at the beginning, the people who participated in the professional day were really professional, and it was rare for superficial performance demonstrations such as flight demonstrations to affect the final decision. But later, more and more organizers discovered that buying planes in some countries is as careless as buying food. ?Furthermore, the person who makes the final decision may not really understand the Air Force. So the air show can really have a certain publicity effect. In the end, we simply set up different performance content every day. ? And this time, since it is an air show held in Paris, the first one to take off is of course the model belonging to the host country. ?The all-black Rafale C01. ?Due to funding problems, only one prototype of the Rafale B and C models was built, and only the carrier-based M model, M01 and M02, was completed according to the original plan. From flight testing to participation in air shows, all tasks can only be completed by these four aircraft. Fortunately, the M88-2 engine has now been buffed by Chang Haonan. Although the performance indicators may not be very advanced, there is absolutely no problem in terms of stability. Even under such high-intensity continuous rotation, the fault interval above the standard line is still guaranteed. ??Looking at his own plane, which was close to being in service, flashing and moving in mid-air, Serge Dassault, who was sitting in the VIP seat, finally showed a happy smile. The Rafale fighter jet adopts a close-coupled canard layout. The distance between the canard and the main wing is very close. It focuses on using the close-coupling effect to increase the unsteady vortex lift and delay the stall of the main wing. ?This design makes the Rafale''s performance, especially its agility, better at low altitudes and low speeds, making it more suitable for ground attack missions. ?Of course, this is also an old tradition of Dassault products. French fighters have always had shortcomings in terms of power, so they are better at, or in other words, have to be good at differentiated competition. The Rafale fighter jet is equipped with the REB2 passive phased array radar produced by Thomson, which is better than the mechanical scanning radar on Typhoon, JAS39 and F16 in terms of scanning frequency, detection accuracy and multi-target tracking capabilities. This kind of direct diss about an opponent''s model is naturally impossible for Dassault, as the boss, to say it himself. Hence, it was Ed Steiner who was responsible for introducing the specific situation of Rafale fighter jets to several exhibition representatives from Egypt, Greece, South Korea, Austria and Singapore. But I heard that Lockheed Martin already has plans to upgrade the active phased array radar to the F16C/D? ??A lieutenant colonel from the Greek Air Force next to him put down his telescope and said to Ed Steiner. Thats just a plan after all. The latter shrugged and replied: And it only upgrades the phased array antenna, and cannot replace the underlying design of the radar backend. In addition, our Rafale is far superior to the F16C in terms of maneuverability and bomb load. ?Ed Steiner is familiar with publicity tactics, and he mentions the shortcomings of his own planes in passing. For example, due to aerodynamic design limitations, the radar antenna area of ??the Rafale is almost the smallest among the third-generation aircraft. ?This results in RBE2, as a more advanced electronic scanning radar, being inferior to the last-generation mechanical scanning radar equipped by its peers in terms of hard indicators such as detection range and anti-interference ability. And its difficult to circumvent this problem with a simple upgrade. ?However, after all, several of the audience members were from the Air Force, and someone quickly asked related questions: The phased array radar generates more heat and requires greater power than the mechanical scanning radar. Can your model ensure the stability and reliability of the operating state? The person who spoke was a colonel from Austria. In fact, Ed Steiner knew very well that this person came here to cause trouble. Because Austria actually decided to join the EF2000 research and development program a year ago, it is simply impossible to buy Rafale again. But the air show was open, and it was impossible for him to drive people away from the viewing platform, so he had to bite the bullet and explain: The Rafale fighter jet uses two of the latest M88-2 engines. While providing a maximum thrust of 7,600kg, it can also take into account a maximum power generation capacity of 25kw, so there is no need to worry about this..." It is another typical strategy of avoiding important matters and taking advantage of the light. Since the nose of the aircraft is already very small, the Rafale does not retain a large number of fuel lines for liquid cooling of the radar like the J-11B and Su-27SM. This results in the failure rate of RBE2 being indeed high. So, Ed Steiner only answered half of the Austrian colonels questions. Fortunately, at this time, the first round of aerial performances had ended, and bursts of applause erupted from the auditorium, interrupting the conversation between several people. In fact, the Rafale fighter jet should be considered a frequent visitor to air shows throughout the 1990s. Hardly absent. But the significance of todays appearance is obviously extraordinary. After the collapse of Operation Allied Force in 1999, the relationship between Snecma and General Electric fell into a freezing point, and the M88 also stalled due to the loss of technical support and important parts provided by the latter. By 2000, all four Rafale prototypes were effectively grounded. ?So rumors soon spread that the Rafale might be canceled directly like the Mirage 4000. As for Snecmas cooperation with China... At least at the time, everyone basically took it as a joke. Hence, several countries that originally had the intention to purchase have also turned to other models. This time, the Dassault Group persuaded the French Aerospace Industry Association to postpone the air show to August specifically to allow the Rafale to be unveiled in a state close to service and to shatter all doubts about this model. Judging from the results, it should be considered a success. On the other side of the viewing platform, Andy Latham, the team representative of BAE Systems, occupied the position with the best view of the audience. At this time, he was holding a telephoto camera and pointed it at the aircraft that was heading towards the aircraft. There was a burst of continuous shooting from the tail of the Rafale fighter jet taxiing on the tarmac. So...could it be that the Chinese helped Snecma solve the reliability problem of the M88 engine? ?Latham put down the camera and turned to Professor Roger Elinor next to him. The tone was full of disbelief. It is true that the Chinese people publicly demonstrated their third-generation turbofan engine in 1999. But developing a model yourself and helping others improve an immature model are two completely different concepts. The former can be played freely on a piece of white paper, while the latter is equivalent to dancing in shackles. It can be said that the difficulty is actually higher. What''s more, it has only been about a year and a half since Snecma cooperated with Huaxia. Even if we do not consider the issue of mutual trust in the handover process between the two parties, this efficiency is a bit too exaggerated. I said several years ago that Chinas level in the field of aero-engine design is likely to far exceed our expectations. Professor Elinor, on the other hand, looked calm: "When I was wiping the **** of the EJ200 engine before, I accidentally reviewed a paper written by a Chinese scholar about unstructured overlapping grid generation. At that time, I knew that they must have something hidden in their hands. Less good stuff. Sothat paper inspired you? Latham looked like a curious baby. "no." Even though it had been many years, Elinor had even forgotten who the author of that article was, but when he heard this question, he still showed an expression of gritted teeth: The author stopped writing just before reaching the most critical point At this point, Elinor calmed down a little, and then continued to explain: I spent about a year afterwards, but I still couldnt figure out how to realize the grid form mentioned in that article on an engineering level. Fortunately, our laboratory later built a brand-new supercomputer, and the calculation speed is thousands of times faster than before, so even if we use the old method, we can still solve the problem. Ah this ?Latham never expected this kind of plot, but he didnt know how to comfort him, so he had to change the subject: Soif everything goes well with the Rafale project, will it pose a threat to our EF2000 in the international market? Its unlikely. Eleanors answer was very straightforward: "Although the Rafale and our Typhoon have their own strengths in design, the overall performance is too much affected by the engine. I saw the data on their M88-2 exhibition board two days ago, and the gap compared to the EJ200 is very obvious. " In this way, even in the low-altitude and low-speed areas where the Rafale is better, we can still have a clear advantage. Only the mechanical scanning radar is a hidden danger, so you BAE have to speed up the progress..." As if to verify his statement. As soon as Elinor finished speaking, an EF2000 prototype numbered DA7 began to accelerate from the distant runway. Compared to the gentle movements of its competitors just now, the takeoff of this plane can be said to be extremely violent With almost half the length of the runway as the former, it relied on the aerodynamic torque brought by the long-distance coupled canards and the total thrust of the two EJ200s of 18 tons to complete the takeoff in an almost vertical attitude. Even has a transition configuration with three auxiliary fuel tanks. A truly strong person does not need to conduct word-of-mouth propaganda at all. ?When Typhoon''s performance was about halfway through, Ed Steiner on the other side realized that his side would probably lose completely in today''s air-to-air contest. The size of a medium-sized machine is matched with two high-performance mid-range engines with a thrust-to-weight ratio close to 10. Even in low-altitude and low-speed areas where it is not good at, it still brings extremely incredible agility and maneuverability. Obviously, if you want to face off against an old rival head-on, you cannot do it solely by relying on the current technical state of the M88-2... (End of this chapter) Chapter 912 Not all orders can be accepted Chapter 912 Not all orders can be accepted The two flight performances of the J-10E were arranged in the afternoon of the second day of the Professional Day and the first day of the Public Open Day respectively. It can also be considered a good time period. As the first overseas display of the domestically produced third-generation aircraft, the media naturally did not spare any space and carried out an overwhelming publicity. Of course, in the core military fan circle, rumors about "the J-10 is likely to have another upgraded model" have long been circulated. Many people are basically sure that the Chinese Air Force will be equipped with another similar overall design. But the slightly larger model trades part of its agility and high-speed performance for greater multi-purpose potential. ?However, after all, most people who eat melons may not even be able to distinguish between F15 and Su-27, let alone pay attention to such minutiae. ?As long as they can see their own models competing with foreign fighters on TV, and they don''t look inferior at all, it is enough. ?Especially before the opening of the air show, the photo that Guo Ruiqing happened to take was quoted in almost all news ?Four canard layout fighter jets are parked together in a head-to-head posture. Compared with the conventional layout models around them, after a little color adjustment, it can really make people feel a bit sci-fi. ??Some newspaper media even gave this photo the title "The First Year of the Duck Wing" in order to attract attention. ??Although Chang Haonan seems to be a bit rubbish, this word formation method seems to be really popular. Over time, several foreign media even adopted this statement. This exhibition, at least from the publicity level, the effect is quite good, ??In the office of the director of the Commission of Science, Technology and Industry for National Defense, Li Zhongyi put several newspapers in different languages ??on Ding Gaoheng''s desk, and then sat on the sofa next to Chang Haonan: According to the situation reported by the Aviation Technology Group, two countries also expressed their intention to place orders with us, but unfortunately the transaction was not completed. While listening to Li Zhongyi''s report, Ding Gaoheng sat up straight, opened one of the newspapers and read the contents. He can directly understand English and Russian. As for other languages, Li Zhongyi has found a translator to mark the general meaning in the margins of the page. It doesnt matter. After Li Zhongyi finished speaking, Ding Gaoheng replied in a relaxed tone: "In the past, people who came to our country to buy equipment... were actually not just equipment. They came to our country to buy any products, either because they were cheap and large in quantity, or because they were politically desperate and couldn''t find other sellers. It was always a kind of Forced behavior. But in the future, more and more countries will definitely choose us because of the performance of our products or the good relationship with our country. But changing your mindset is difficult and takes time. At this point, the latter paused for a moment, replaced the newspaper in his hand with another, and then continued: Another point is that military equipment procurement is a relatively sensitive and special business, and aircraft are products that can be highly customized, so orders are rarely finalized on the spot at the exhibition. "Those who signed the air show actually started the negotiations many years ago. They just found a commemorative or promotional occasion to announce it. This may be somewhat different from the industry you were engaged in before, Comrade Zhongyi. " After all, Li Zhongyi has just been transferred from the petrochemical industry system to the Science and Technology Commission, so it is normal that he does not know much about the details of some military fields. Speaking of intention orders. Chang Haonan saw that Li Zhongyi next to him looked a little embarrassed, so he changed the topic appropriately: Although our aviation power group did not bring any physical exhibits to participate this time, we almost got an order. "oh?" Ding Gaoheng put down the newspaper and looked up at Chang Haonan with curious eyes: Is there anything else? After the conglomerate restructuring of the military industry system, overall operational autonomy has actually been decentralized. So unless there is an order with a particularly huge impact, ordinary bits and pieces, as well as those that are just intentional contacts, will not be fed back to Ding Gaoheng''s level. I just saw the report this morning. Chang Haonan explained: On the second day of the professional day of the air show, Hindustan Aeronautics Limited (HAL) submitted a letter of inquiry to Snecma, stating that they were selecting power for the mass-produced version of the LCA fighter jet, and asked the French if they had plans to export the M88. Subsequent models. Because according to the previous contract, if the M88 is exported, it needs to be approved by us and Snecma at the same time, so this matter came to me in a roundabout way. At the end of the sentence, there was clearly a smile in his tone. After all, as a reborn person, its really hard not to laugh when mentioning LCAs Glory. ?At this moment, LCA has not yet revealed its many amazing features, and it also achieved its first flight not long ago. In everyones eyes, it seems to be a promising model It took almost twelve or three years for the J-10 to make its first flight from project establishment to first flight. As an attempt by a developing country to start from scratch, LCAs first flight in 2017 is not an exaggeration. In the eyes of China at this meeting, it is considered a strong opponent. So, Ding Gaohengs attitude is quite serious: Sowhats your attitude? I havent replied yet, but I think I will refuse "really." Ding Gaoheng nodded with satisfaction: After all, we are our strategic rivals, and we cannot do this kind of thing to help the opponent build its core military strength. Chang Haonanxin said that if the Indian Air Force can really regard LCA as its core combat force, then I will sign and approve it as soon as I return. The sooner the better. ?Of course, this cannot be said directly. Ahem He cleared his throat and spoke again: "Actually, I don''t have much confidence in Stan Air. If accidents occur continuously after replacing the new engine, or the project progress is seriously delayed, wouldn''t it damage our own brand..." In fact, Chang Haonan insisted on working with Snecma at the beginning. Signing a joint research and development contract, and giving up a large advance payment for this, indeed has the intention to contain India in the future. But what he was thinking about at that time was to strangle the possibility of Rafale being exported to South Asia in the future. ?The conscience of heaven and earth, I never expected that LCA would intervene in such a thing. "Then...it shouldn''t be a problem, right?" Ding Gaoheng feels that Chang Haonans concerns are a bit exaggerated: Generally speaking, if there is no problem with the engine itself... the project should still be guaranteed. ?The latter cannot explain this kind of thing at all. ?Have never seen the magic of HAL, it is indeed difficult to believe that there is such an incredible aviation manufacturing company. So I had to change my words: "And another point is that LCA has now chosen the F404 as the power for the first flight. There is no need to change the model at all. The performance of the M88-2 currently does not meet the requirements for a single engine to propel a medium-sized aircraft. I think it is very Maybe its just using M88 as a bargaining chip to lower the price from General Electric. "This is a very common operation. I think Comrade Haonan''s concerns are reasonable." Li Zhongyi, who had been silent just now, also intervened: The bidding process itself will actually involve a lot of costs. If it is very certain that it will be used as a bargaining chip and there is no possibility of winning the bid, there is really no need to accompany it unless there are additional publicity considerations. The topics related to the air show soon came to an end. ? Ding Gaoheng specially brought Chang Haonan here today, naturally not just to talk about such a trivial matter as the Paris Air Show. ?Of course, strictly speaking, it was Li Zhongyi who really wanted to interview Chang Haonan. Comrade Haonan. The latter took out a portfolio from the briefcase beside him and handed it to Chang Haonan: At the beginning of the month, a Norwegian company submitted an order to build eight LNG ships to the Hudong Shipyard. "What the Hudong factory means is that there should be no major problems with the ship itself, but the order specifically emphasizes the installation of the evaporative gas re-liquefaction system patented by your Torch Group, so specifically can this contract be signed and how should it be signed? I also want to ask for your opinion. Originally, they were planning to contact you directly, but they couldnt contact you some time ago, so they reported it through the Shipbuilding Industry Group, and finally they reached me. Logically speaking, if the senior managers of an enterprise like Aerospace Power Group lose contact for a long time, it can be treated as an accident. ?However, after all, Chang Haonan has been on the front line of scientific research for a long time, and his situation is really special, so it is generally not surprising that he cannot be found. The problem is definitely not a problem. Our BOG reliquefaction system is fully adapted to the Gas-Transport cargo tank technology route of the Hudong plant. If combined with a natural gas-powered diesel engine, it can almost ensure zero loss during transportation..." While speaking, Chang Haonan opened the seal and took out several thick multi-lingual materials: But our LNG ship... we havent even built the first one for domestic trial use. Does anyone really dare to order 8 ships at once? As of 2001, most of the existing orders for LNG ships are still held by Japanese shipyards. The new growth is mainly in South Korea. As for Huaxia, it is not very convincing in the field of high-end ships. You must know that the price of each large LNG ship of 135,000 cubic meters is basically more than 150 million US dollars. As for the Gas-Transport cargo tank, due to its large weight and volume, the construction cost is even higher, and the quoted price is generally US$170-180 million. 8 ships, which is US$1.4 billion. Nearly 12 billion yuan ?Even domestic companies would not dare to place such an order Huaxia Petrochemical has only signed a contract for two ships at present, and it is required to start construction on one of them first, and then decide on the second ship after passing the acceptance inspection. A foreign company, why? Thats why the Hudong Factory was very cautious, because they were worried about whether there might be any traps. Li Zhongyi explained: However, we have also looked at it with some experts in international commercial law, and apart from the fact that the advance payment ratio is slightly lower, there seems to be no other problems. With curiosity, Chang Haonan opened the document with a Chinese cover. We are new to the game and have insufficient bargaining power. With an advance payment of 10%, there is really nothing to complain about. If youre sure theres no problem He originally wanted to say that if there was no problem, then he would boldly take the order. But at this moment, he suddenly caught a glimpse of the equity structure of Party Bs company during background research. ?Norway is a Zall company, holding 70% of the shares. The other 30% is miscellaneous, with ingredients from everywhere. "etc" Chang Haonan suddenly changed the subject: "Director Li, please tell the Hudong factory that no decision should be made on this order yet..." (End of this chapter) Chapter 913 Someone is rushing to jump into the pit? Chapter 913 Someone is rushing to jump into the pit? Chance is Zhuoer Company, the worlds second largest offshore oil/gas drilling equipment operating company. It can be regarded as the top giant in the offshore oil and gas field, especially in the cold zone offshore oil and gas field. ??If we can really win this large order of US$1.4 billion from the other party, it will be huge good news for the Hudong Factory, which is just starting out in this field, and even for the entire Chinese shipbuilding industry. But the problem is that this Zhuoer Group is definitely not a fuel-efficient lamp. ? Their classic routine is to first place several huge orders through several different subsidiaries, and use this as a bargaining chip to require a lower down payment ratio. Wait until the order is almost completed, and then suddenly cancel part of it due to bankruptcy protection or other reasons. ?The final stage of the completion of such a huge order is when Party Bs capital chain is the most vulnerable. If Party B suddenly loses a large order, it will basically fall into difficulties or even directly become insolvent. The delivery of the part that has not been canceled will also be delayed as a result. As a result, high liquidated damages were incurred. For Party B, the only way out is to resell the products that were completed immediately but the order was canceled at a low price. But the problem is that the application scope of offshore oil and gas equipment suitable for cold waters is extremely narrow. It is almost impossible to avoid Xizhuoer Company. ?At this time, another of their subsidiaries will take the order at a super low price, achieving more than one fish. ? ? If you include the liquidated damages mentioned above, you can often get a batch of equipment for free. ?Even the shipyard has to pay back the money. As for you talking about submitting it to arbitration? Does not exist. The contract will stipulate that dispute arbitration will be conducted in the buyers country, which is Norway. The result...dont even think about it. Do you understand "I have the final right to interpret legal provisions"? In short, almost all of the worlds leading marine equipment manufacturers have been fooled by them. In the previous life, the large-scale offshore engineering company was directly bankrupted by such a combination of punches. ??Had it not been for the State-owned Assets Supervision and Administration Commission to take care of the situation, I''m afraid there would have been a series of attempts to acquire assets at low prices and then reorganize them. Chang Haonan quickly turned to the back of the information text in his hand, and sure enough he saw the clause "If a dispute occurs, the arbitration shall be conducted in Party A''s country" in the inconspicuous remarks clause. ?Then theres nothing to worry about. ?At this time, Li Zhongyi next to him saw Chang Haonan stop his movements, and he also said: Comrade Haonan, this...must give the Hudong Factory a suitable reason, right? These days, the country is not particularly wary of these Western companies. It can only be said that the brainwashing effect of the spirit of contract is quite powerful. ?But having said that, it is only 2001, and it is indeed still early to start the big ship and offshore project, so Chang Haonan cannot use the sword of the Qing Dynasty to kill the officials of the Ming Dynasty. Fortunately, the company has a bad record even in Europe, so it is not difficult to find some strong arguments: The company behind this contract is Zall, the same Norwegian company that deceived the Black Sea Shipyard into dismantling the Ulyanovsk through contract fraud a few years ago. Old Wu told me about this before, saying that their boss was John Frederiksen, known as the Norwegian shipping king, who made his fortune through this method. "So, although it doesn''t mean that you can''t do business with Zhuoer Company, you must be extra careful. In this contract, there is only 10% advance payment, and if any dispute occurs, it must be settled in Party A''s country. , obviously here to collect wool. ?This explanation highlights the truth and falsehood. ??Wu Yifan did talk to Chang Haonan about the Ulyanovsk, but as to whether Frederiksen was mentioned in it... ?Im afraid even the former himself has forgotten it. But what Chang Haonan said is absolutely true. So, it was a matter of course to convince Ding Gaoheng and Li Zhongyi. Of course, the main reason for this is the foresight shown by Chang Haonan in the past. ??If someone else were here, even if they said the same thing, it might not be so easy. After being interrupted by such an incident, Chang Haonan also realized that he had been staying in the new laboratory outside the Fifth Ring Road during this period. ?Although that place was put into use in advance, it has not yet been officially registered, so the contact information written to the outside world, as well as several administrative staff of the laboratory, are actually still at the old campus of Beijing Airlines. If you dont know the situation, its really not easy to find others. Thinking of this, Chang Haonan did not go home immediately after leaving the Science and Industry Committee, but made a special trip back to school. As a result, as soon as he arrived at the door of the office, he ran into Wang Jie who was running up the stairs in a hurry. Professor Chang ?Wang Jie''s breathing was quite rapid, and there was sweat on his face and head. It was obvious that he came in a hurry. Wang Jie? ?Chang Haonan opened the office door and motioned for the other party to follow him in: Didnt I tell you that you can take half a month off in late August and return to work in September? Why did you come to school? ??He turned on the air conditioner as he spoke, and took out a bottle of water from the carton next to him and handed it to Wang Jie. Graduate students should theoretically have about one and a half months of summer vacation. Although most PhDs cannot enjoy it. ?However, Chang Haonan is not that inappropriate, and he is also worried that some of his students are too tight, so he will give them a holiday ranging from half a month to a month depending on the situation. Teacher Liu and Teacher Lei have an urgent report to submit to you. I happened to be on vacation, so I brought it over. ?Wang Jie, who finally regained his breath, took out a file bag from his schoolbag. ?However, it is different from common portfolios. The opening is not tied with a rope, but with a seal. ?Of course, it does not have any legal confidentiality effect. It just has a function similar to that of fire paint, letting the recipient know that "this thing has not been opened." Is there someone who wants to order 8 LNG ships from Hudong Plant? ?Chang Haonan naturally thought that Liu Fangping and Lei Zhixing also wanted to say this. Although the timeliness is a bit poor, considering that it is delivered from Shanghai to the capital through human express delivery, the time is not outrageous. ?However, Wang Jie hesitated when faced with this problem: "Well" Yes, but not quite. Anyway, please take it apart and take a look. The situation is a bit complicated and its hard to explain clearly in a few sentences... ?Chang Haonan stood up, took out the letter opener from the pen holder, and opened the seal at the mouth of the bag. Inside is a printed document. It is not very long, probably less than 10 pages. So it didnt take long for Chang Haonan to finish reading it. "so" He showed an indescribable expression: Based on GTTs attitude, you speculate that Samsung Offshore may want to compete with us for this LNG ship order? In 2001, South Korea was actually a new player in the high-end marine equipment market and had no experience like China. So, it is normal to be covetous of this billion-dollar deal. Thats right. ?Wang Jie nodded, and then explained: "In the past two months, among the delegation sent by GTT Company to the Hudong Plant, several people have always intentionally or unintentionally been getting closer to us and the comrades from the Hudong Plant, and then asked about some things that have nothing to do with the cargo tank system. Things happened, so I served some snacks. Later, we and the comrades from the factory security department discovered that one or two of them may have been bribed by South Koreas Samsung Offshore Engineering, but there is no direct evidence yet. ?Chang Haonan touched his chin and did not answer immediately. Commercial espionage is not quite the same as military espionage. Most cases are marginal. After all, when others cooperate with you, a lot of business secrets will be involved in the process. Hence, in practice, even if the evidence is solid, it is difficult to convict. Unless someone climbed through the window to open the safe in the middle of the night and was caught. ?Since there is no direct evidence at the moment, there is definitely no way to expel or arrest the other party through official means. ? And if GTT is rashly replaced, the other party may not agree, and even if it is replaced, it will be difficult to achieve a permanent cure. On the contrary, this definite goal has been lost. So, after thinking for a while, Chang Haonan had no choice but to remind: Let the security department in Shanghai keep a closer eye. Of course, the more important thing is that you yourself must be more vigilant and pay attention to confidentiality regulations. In any case, China is not prepared to take on this hugely risky order. If Samsung Offshore Engineering is willing to be taken advantage of, then he will not stop it. ?However, Wang Jies brows did not relax because of this: "Actually, Mr. Chang... I''m not worried about the business issues at the Hudong factory." How to say? ?Chang Haonan raised his head curiously. What do you think Wang Jie hesitated a little when he said this, but continued: Is Samsung Offshore interested in our BOG reliquefaction technology? (End of this chapter) Chapter 914 Do Koreans want to steal technology? Chapter 914: Koreans want to steal technology? No way ?Chang Haonan thinks this guess is a bit outrageous. Its not that he believes in the character of Koreans. Rather, the core technology of the entire BOG reliquefaction system is in the hands of Torch Group, or even more strictly speaking, it is in his own hands. Let alone going through the Hudong Factory, even if Liu Fangping and Lei Zhixing were bribed, it would be impossible to obtain complete technical information. "But... the Hudong plant is responsible for the overall construction of the entire ship after all, and GTT''s technical team is deeply involved in the design of the core cargo tank system of the entire ship. In this process, it is inevitable to come into contact with the BOG reliquefaction system. design" ??As a doctoral student from an old military school like Bingcheng University of Technology, Wang Jie has absolutely nothing to say in terms of vigilance. Wait a minute ?Chang Haonan raised his hand to interrupt the other party, and then further explained: "What the Hudong factory has in hand is just a deeply customized solution for their ship, or at most their ship type. We have registered patents, so why do we need commercial espionage? Go to the Patent Office to check. Just know..." Uh...Teacher, shouldnt there be a lot of unclear words and intentional omissions in this kind of core patent? Even if it is found, there shouldnt be any operability, right? ?Wang Jie is also a veteran and knows these scientific research tricks very well. However, Chang Haonans two lifetime experiences clearly showed that he had taken precautions in this regard: The plan in the hands of the Hudong Factory only has parameters, not even a design method, let alone operability As Wang Jie just said, as long as you are willing, it is very easy to copy a specific plan from the shipyard. In fact, this thing is not confidential at all. But it doesnt make any sense to Samsung Offshore. It is equivalent to the last big question in a math exam. You only copied the final result but did not write down the intermediate process. Still not able to get points. ?This time, Wang Jie didnt reply and seemed to be a little convinced. Seeing this, Chang Haonan continued to comfort him: "Furthermore, our BOG reliquefaction system will affect the structural strength of the cargo tank itself, which can only be used with the Gas-Transport technology of double-layer invar steel plates. Samsung Offshore chose the relatively lightweight Technigaz system. Basically It''s not suitable, even if you buy my technology from me openly, it will be useless..." Having said this, the stone hanging in Wang Jie''s heart naturally fell to the ground. "Teacher, if there is nothing else, I will..." He has already begun to think about his vacation life in the next half month. "Wait a moment." ?Chang Haonan quickly stopped Wang Jie, who was halfway up and had his **** raised. The latters heart skipped a beat: Teacher, I have bought all my tickets to go home... Dont be afraid, Im not asking you to work overtime. Chang Haonan waved his hand; "Now the intensity of the tasks at the shipyard is a little lower. In addition, the two master''s students taught by Teacher Liu and Teacher Lei can also go there to help. So you should report to the school after the start of next semester. There is a junior brother who you should take care of. " As usual, Chang Haonan also recruited a doctorate and a master''s degree this year. ??However, I have not encountered people like Li Yabo and Wang Jie whose abilities far exceed the average level of their academic level. As usual, the master''s degree students come from our school, but they need to take half a year of classes first, while the doctoral students come from Beijing Institute of Technology, which is also one of the seven national defense universities. They are also majoring in mechanics, so they are very suitable for Wang Jie, who has relatively rich experience. "oh" The latter breathed a sigh of relief: No problem, I will take good care of my junior brother Also, be mentally prepared this holiday season. Chang Haonan smiled: "After next semester, I should consider letting you take charge of the project independently." "Huh?" ?Wang Jie was completely shocked: I...I take charge of the project? At the beginning of the 21st century, most research groups did not have many projects to work on, so it was not as common as it would be ten or twenty years later for graduate students to actually lead projects. At least Wang Jie studied for a master''s degree at Bingcheng University of Technology for three years, and the projects were basically hosted by several teachers. Sooner or later you have to be on your own. Chang Haonan said: Dont put too much burden on me. I will definitely provide you with the necessary guidance in the beginning. However, what I ask of you is that you cant be like an ordinary graduate student, you just take one step at a time when I tell you to do it, at least you have to draw inferences from one example..." ??Wang Jie is a relatively capable doctoral student. If he can only act according to the teacher''s baton during his three to four years of doctoral study, it will actually be detrimental to his development. ?Of course, after putting pressure on you, you also need to give some motivation: In addition, since you have been put in charge of the project, starting from next semester, your graduate student subsidy will definitely be based on a higher standard. ?Sure enough, Wang Jies eyes suddenly brightened. In terms of giving money, Chang Haonan is not short of funds at all. Therefore, not to mention being in the ranks of graduate student subsidies, even compared with the salary outside, the labor fee he pays is considered a high salary. ?After watching Wang Jie leave, Chang Haonan quickly sat back behind his desk, spread out a piece of paper and started writing furiously. In fact, the reason why he stopped the former just now was because he wanted the other party to help him deliver a document to Shanghai. The relationship between the Torch Laboratory and the Hudong Factory is rather subtle. Mainly because Chang Haonan''s own identity is relatively subtle. He is not only Party B involved in the LNG ship project, but also the leader of the aviation power group. If he directly calls a unit of a shipbuilding industry group to arrange work, it will always be suspected of crossing the line. So, anything that happened before was conveyed through Wang Jie, Lei Zhixing or Liu Fangping. ??If you encounter something that is not convenient to talk about on the phone, you have to rely on these three old people to run errands. However, considering that the young man finally returned home, he still couldnt say it in the end ?At the moment, we are still between the third and fourth major railway speed increases. Taking a slightly farther train can easily take more than 48 hours. ?Half-month vacation seems to be a long time, but the time left for the other party to be at home is actually only about ten days. Fortunately, Wang Jie doesnt have to do this. ?With the resources that Chang Haonan can use now, he can write a proposal and give it to Li Zhongyi, and then arrange it through the Science and Technology Committee. Thats what he is doing now. The general meaning is also very simple. Since Samsung Offshore wants to have a foothold in this project, we might as well use our plan and put on a good show for the Norwegians and Koreans at the same time. ?Now Zaoer has taken the initiative to find the Hudong factory. If we directly reject the order as previously decided, it would be too strange, and there is no guarantee that Koreans will not become suspicious. Therefore, you still have to act like you are negotiating hard with Xi Zhuoer and want to win the order. You should seize the point that the advance payment ratio is too low to make it appear more real. ?According to the eagerness of Koreans to rush for orders, in order to suppress the Hudong factory, they may even offer to lower the advance payment ratio on the basis of 10%. ?In this way, Xizhuoer Company found that Hudong is not so easily fooled, and there is a high probability that it will turn to Samsung Offshore Engineering next door. No matter what the final result is, Samsung will inevitably suffer a lot of blood. As its main competitor, Huaxia Shipbuilding Industry can reap the benefits... (End of this chapter) Chapter 915 M883 engine upgrade plan Chapter 915 M88-3 engine upgrade plan ??Despite having just experienced a round of economic crisis, the 2001 Paris Air Show quickly showed its huge influence. On the one hand, due to the superposition of various factors, the financial crisis originating from Asia in this timeline did not expand to the level that swept the world in the previous generation. About three years has been enough for some countries with stronger resilience to slow down. Come in one breath. More importantly, the sudden occurrence of the Allied action and the dramatic results that followed made many medium-sized countries realize that- Although the Cold War has ended, for small countries, the end of the Cold War is the beginning of danger. Furthermore, it is really useful for national defense construction. ? ? In the Balkan Peninsula, an anti-aircraft gun from the 1950s can shoot down a B2. If it had more advanced equipment, I don''t even dare to think about what it could shoot down. ??Although the starting point and thinking path of this idea are actually biased, after all, the results of the B2 really have little to do with the anti-aircraft artillery. But the final conclusion is correct. As for the arms race, once one country starts to engage in it, other countries that have no idea will follow suit. So, even before the public opening day of the air show ended, the news of the first order had already spread. ? Some media broke the news that a North African country purchased a large number of improved Su-27SM and Su-27UBM from Sukhoi and has signed a detailed supply contract. Compared with the basic models exported to China, India, Indonesia and Annan in the past, these two new models have greatly improved in terms of avionics, bomb load and mobility. Even the radar has been replaced with a flat-panel slot antenna that is more in line with the requirements of the times. This news was quickly confirmed by Algeria and Sukhoi. And the former also stated that this round of procurement not only involves the Air Force, but also includes 6 battalions of Buk anti-aircraft missiles and two F22A frigates from China. It can be seen that this country, which has just recovered from civil strife a few years ago, has become a lot richer by relying on the nationalized oil and gas fields. It seems that this has been used as a switch. In less than half a month, more than ten countries have officially announced new equipment procurement decisions, or at least plans with clear timetables and selection ranges. ?Austria and Norway stated that they will purchase EF2000 as their countrys new generation main fighter aircraft. ?Morocco signed a contract with Lockheed Martin to purchase 25 F16C/D fighter jets from the latter to deal with air threats from neighboring countries. ??The Greek Air Force did not specifically state its aviation equipment update plan, but decided to upgrade some of the 5V55R missiles mixed in the S300 air defense system to 48N6E. ? In this way, the S300 only needs to be deployed on the island of Crete, and the range can cover the entire southern Aegean Sea and over Cyprus. The Turkish Air Force, subject to the cooling of relations with the United States, is unable to further purchase more F16s and can only temporarily respond with strong protests. Saudi Arabia has included F15, EF2000 and Rafale into the selection scope at the same time. The Thai Air Force has publicly stated that it has inspected Swedens JAS39C/D and Chinas J-10E, and believes that the latter is more in line with its tactical needs, but it has not yet decided whether to maintain the original 24 aircraft or reduce it to 12 aircraft. ? Brazil has announced an arms renewal plan involving 36 aircraft and more than 1,500 munitions of various types. It will also choose between JAS39C/D and J-10E. ?South Korea has determined that its F-X plan to replace the F4 and F5 fighter jets will not conduct a public bidding, but will directly finalize the model as the F15K. Even China, whose international image has gradually transformed from an equipment importing country to an equipment exporting country, also quietly signed the third batch of S300PMU2 procurement contracts for a total of 12 battalions... In short, everyone who eats meat eats meat, and those who drink soup drink soup. No matter how bad they are, they can still rub the bottom of the bowl. But there is one exception. That is France as the host of the air show. After deliberately postponing the air show for two months and performing a fierce operation, let alone eat meat and drink soup to the bottom of the bowl. Not even smell the fragrance. ?Of course, Airbus still made a lot of money as usual. But this is obviously not the same thing. Is the money the most important thing in arms procurement? Of course not. Its about expanding influence! Why does Thailand actively consider the J-10E? Performance is only secondary. ?The core reason is that in 1998, China became the anchor of Asia''s finance, while Japan, which has stronger economic strength, declined at a rapid pace. Although the core reason for doing so was to protect Hong Kong Island, it objectively prevented Southeast Asia, especially Thailand, which bore the brunt, from slipping into an even more uncontrollable abyss. This kind of equipment procurement will obviously in turn enhance China''s influence in countries of the same size. ?For example, the choice of Brazilians is obviously affected by this. However, many countries that were originally equipped with Mirage series fighters, such as Morocco and Saudi Arabia, have decisively abandoned Dassaults subsequent models in this round of equipment updates. This is obviously not a good trend. ??In short, watching others successfully close deals one by one at the air show held by them, the French really experienced the feeling of being NTRed. ?So, after the air show ended, they naturally started a round of review. First of all, the EUs development momentum in these years is absolutely incredible, and it even (thinks it) shows signs of overtaking the United States. ? And France has always regarded itself as the leader of the European Union, so from the perspective of international influence, it must be stronger than in the past. So the current situation is definitely not because France is failing. ?Well, it must be a product problem. ?Of course, Dassault itself recognizes this. After all, at the air show, Rafales performance was indeed inferior compared to the EF2000 next door. Therefore, except for the French Navy, which is eagerly waiting for the dumplings to be cooked, and has first purchased a batch of 12 mass-produced Rafale M aircraft with F1 technical status, the rest of the orders will be delivered after being upgraded to F2 technical status. The most important one is naturally the power upgrade that Ed Steiner had already thought of on the day of the air show. The thrust of the M88-2 at sea level is only 7.6 tons. In order to reduce its own weight, the ejection nozzle further reduces the working condition adjustment range. Compared to the EJ200, which has a thrust of 9 tons in the basic model, it does pale in comparison. So much so that even in the low-altitude and low-speed maneuvers that it is best at, it was beaten. Therefore, Dassault learned from the painful experience and quickly put pressure on Snecma. For the latter, Party As request is like a reminder. In this case, the Chinese happen to have an almost ready M88-3 plan. You dont even have to worry about which choice to make... So, early September. Just when Chang Haonan had arranged his work for the next month in advance and was waiting to see whether the big news would come as scheduled, he suddenly received a request from Liu Yongyong to come to the capital to report to him. Mr. Chang, Snecma suddenly expressed yesterday that it hopes to speed up the work with us and put the next improved version of M88 into mass production as soon as possible. ??Liu Yongquan said as he put a memorandum of the meeting on Chang Haonan''s desk. According to regulations, this kind of international cooperation needs to be submitted to the group headquarters for approval at startup and major milestones, but the intermediate process can be independently decided by each secondary unit. ?However, Chang Haonan is the chief designer of Turbofan 10 after all, and it is not an exaggeration to say that he is the founder of Chinas aerospace industry in the new era. So Liu Yongquan was used to asking him for instructions and reports. So urgent? ?Chang Haonan took the folder with some confusion and then opened it: Isnt the M88-2 just put into mass production? Isnt Snecma ready to familiarize itself with the production process? ??If we follow what China calls it, the current progress of M88-2 is similar to that of Turbofan 10. Both have completed the design and finalization but have not yet reached production finalization. Logically speaking, further upgrades should not be considered so soon. And one more thing. Chang Haonan has basically arranged the technical solution for the M88-3. In addition to performance upgrades, the most important thing is to use this improved model to help China test some technologies, and to use the design of special-shaped air film holes to make turbine blade outlets. business. But the problem is that the annual production capacity of nearly 200 engines at Liming Plant is "planned production capacity." It hasnt landed yet. At present, only the prototype machine in the Torch Laboratory is undergoing trial production. When the ultra-short laser processing equipment is finalized, Liming Factory will set up the production line. Optimistic estimates will not be until the second half of next year to the beginning of the next year. So the original timetable was for the M88-3 to be put into production after mid-2003. ?Snecma will then discover that it is building new turbine blades too slowly. At this time, China came again as the savior. Perfect. However, looking at the eagerness shown by the French now, it feels like the entire progress will be at least about a year ahead of schedule... Liu Yongquan didnt think so much about Chang Haonan, he just answered whatever he wanted: I guess it was after the Paris Air Show that I found out that there were no orders coming in, so I became anxious. No order received? Chang Haonan briefly recalled the news he heard during this period, and found that he seemed to have never heard of the part related to Dassault: It seems that there really isnt ?But then, Chang Haonan changed the subject: "But to be honest, this actually has little to do with the performance of the aircraft... The main reason is that there is a problem with Dassault Rafale''s promotional strategy, and the other is that it does not target the right market. You are like South Korea, where it is obvious that only American aircraft are available. No matter how hard you try, you can''t win..." Hmm But I heard from comrades who came back from the air show that Rafale and Typhoon are flight performances performed by the front and rear legs, and the performance gap is quite obvious. Liu Yongquan opened his mouth and said. Although the Aviation Power Group did not send a delegation to participate in the exhibition, as an old man from the head office, Liu Yongquan has many acquaintances in the aviation industry group next door, and it is inevitable that he will interact with them at work. What kind of maneuverability can be seen in the flight performance... Chang Haonan couldnt help but complain: They are all fancy moves at low altitude and low overload. At most, it only depends on the power level and agility. As for Typhoon At this point, he suddenly paused. Chang Haonan originally wanted to say that Typhoon''s EJ200 actually has a design flaw. Although the paper data is superb, because there is a missing support point in front of the engine fan, it may cause excessive casing deformation during high overload operations and damage the compressor. Blades, so the actual maneuverability simply cannot reach the design level. ??However, even the British army themselves may not be aware of this flaw at the moment. It was only later exposed after the Typhoon repeatedly gave incredible and disastrous performances in many simulated air battles. He knew the flaws of M88 without having been exposed to M88 before. This performance was already outrageous. ?However, I can barely explain it, saying that it is a reasonable deduction from the problems of the CFM56 core machine. However, the EJ200 is a newly designed thing from the inside out, and it is a bit scary to be able to point out detailed problems thousands of kilometers away. So, Chang Haonan had to change his statement: For a multinational joint research and development project like Typhoon, there is a lot of room for wrangling in later upgrades and maintenance. You will regret it when you buy it back... Liu Yongquan did not doubt that he was there and just replied: But after all, Typhoon has already received several orders, and it is inevitable that the French will be anxious..." Okay Chang Haonan didnt say anything more: You should have received the technical plan I wrote to you before? Liu Yongquan nodded: "Received. We will use a three-dimensional scoop-shaped air film hole similar to the turbofan 10 to improve the atomization ability of the fuel nozzle in the combustion chamber and further increase the temperature in front of the turbine. Then we will redesign the outer edge of the high-pressure compressor blade to control Boundary layer separation Just do it like that, the air film holes and fuel nozzles are ready-made, you just need to re-adapt to the conditions of the compressor. Chang Haonan said as he closed the file again and put it back in the drawer next to him: However, we cant help the French work overtime in vain. Remember to increase the strength of Dassault and ask them to come up with the gyro-stabilized platform of the optoelectronic pod and the technology of the uncooled thermal imaging camera as soon as possible..." (End of this chapter) Chapter 916 smartass Chapter 916 Being smart ?Compared to the happy scene here in the aviation industry system, the ship system next door has not yet waited for its own good days. In fact, in 2001, China was already ranked third in the world in terms of shipbuilding tonnage alone, and was far behind Germany, which was ranked fourth. The problem is, first of all, this third place is only about one-third of the top two. ?Of course, its okay if thats all. After all, Chinas aviation industry is not even ranked among the top three in the world. However, compared to the aviation manufacturing industry, which is a high value-added industry, most of the shipbuilding business currently in China''s hands is a properly labor-intensive industry. Its really hard money to make. Even making a profit at a loss. ?It is precisely because of this that Hudong Plant wanted to take a huge risk and place an order for 8 LNG ships from Zhuoer Group. After all, from the current perspective, even if the business itself suffers a small loss, as long as it can take this opportunity to join the table of high-end offshore engineering equipment, there will be profits later. I cant say that my thinking is wrong, but Xi Zhuoer didnt plan to eat at the same table with you at all. Instead, he planned to overturn the table from the beginning. ?However, in 2001, everyone was still quite superstitious about the so-called "Western contract spirit". So, even after receiving the reply from the Commission of Science, Technology and Industry for National Defense, many people still feel that they should at least talk to the other party. ?Of course, this was originally Chang Haonan''s strategy, so it might as well be a fake show. As for the result... At almost the same time Liu Yongquan approached Chang Haonan. In the office building of Hudong Shipyard. Cai Honggui, the general manager of the LNG ship project, also held a thick document and opened the office door of Chen Weiquan, deputy general manager of the Hudong plant. Mr. Chen. ??Cai Honggui was not wearing a tie, and the top two buttons of his shirt were unbuttoned. He was obviously in a low mood: The Norwegian company was very strict with the conditions and firmly refused to agree to our request to increase the advance payment to at least 25%. After finishing speaking, he put the document in his hand on the desk and sat across from Chen Weiquan. But Chen Weiquan didn''t even look at it. He just got up and poured a glass of water for Cai Honggui and placed it in front of the latter: 10% is indeed too low. ?? Chen Weiquan came to the office window and looked at the first LNG ship being built for Huaxia Petrochemical in the distance: For a high-value-added ship like this, the international rule is to charge 30% to 50% as a deposit. Although we are new players in this field, it is reasonable to lower some requirements, but if it is lower than 25%, we have to take into account the risks emphasized to us by the Science and Technology Commission. As the leader of the shipyard, Chen Weiquan naturally knew the whole plan, that is, he no longer considered the possibility of receiving this order, and only conducted false negotiations with Xizhuoer Company, thereby luring Samsung Offshore Engineering, which was next door and coveted this order, into the trap. ?However, in order to enhance the realism of the scene, he did not tell the people below the entire plan, only the part where the Science and Technology Commission believed that the deposit was too low and there were risks. Of course I understand these principles. ??Cai Honggui sighed, then picked up the paper cup and took a sip of water: But I feel that if we dont seize this opportunity, we dont know how long it will take to truly gain recognition from the international market... As the person in charge of the specific implementation negotiations, he always had the idea that he might be able to win this huge order. So we put in a lot of effort in negotiations, hoping that the other company would agree to increase the deposit ratio to 25%. The result was a complete failure. int Hearing this, Chen Weiquan showed a smile: Perhaps...it wont take too long. "Um?" Cai Honggui suddenly raised his head and subconsciously let go of the paper cup that was almost flattened with his right hand: You mean ??Chen Weiquan did not answer immediately, but sat back behind the desk again: What I can tell you now is that Xizhuoer Group never thought about doing this business with us from the very beginning! The reason why they proposed such a low 10% advance payment is to eat our liquidated damages midway, and the capital behind this Party A is the Norwegian shipping kings Xedro Company... ? ? ??He spent a few minutes and told Cai Honggui how to make a long story short. ?Conscience of heaven and earth, Comrade Cai Honggui, a leader with a simple technical worker background, never thought that such a shameless way could be possible? Everybody is numb. Thenif thats the case, why do the organization send me there ?? Chen Wei Quanxin said that it is for this reason that he is sending you. If the person in charge of the negotiation is replaced by a bright-tongued negotiator, if the other party is persuaded, then should we accept the order or not? But it would be too hurtful to say it openly, so he used a more euphemistic expression: The organization knows your abilities, so they sent you to act out a fake show like this. In this case, our opponent, Samsung Offshore Engineering, will definitely be unable to sit still and want to grab this order from us. When they suffer from this, its time for us to play a role. Actually, regarding this last part, Chen Weiquan and even Chang Haonan themselves had no idea. Samsung Offshore Engineering is, after all, part of the Samsung Group. It has a big business and a big business. Even if it is taken over by Zaoer Company, it will not be unable to recover or go bankrupt directly. But in any case, it is definitely beneficial to the overall situation of this LNG ship competition to make the main competitors lose a huge amount of money and have to worry about the messy lawsuits. Thats why we did this. Cai Honggui, who was on the opposite side, also realized that he was being used, but he couldn''t say anything. Fortunately, after Chen Weiquans explanation, he felt less uncomfortable: Then later, should we continue to talk with the Norwegian company? ??Chen Weiquan took out a box of yellow pandas from his pocket and divided one between himself and Cai Honggui: "We still need to maintain contact, but face-to-face negotiations... probably won''t happen." I estimate that after we have been busy for half a month, the Koreans should take some action... Just as Chen Weiquan guessed. ?Samsung Offshore Engineering, which has been paying attention to the Hudong plant, actually took action when the former started to implement negotiations. ??Its just that the form of action is different from what everyone, including Chang Haonan, expected... South Korea. Gyeongsangnam-do, Geoje City. ??In the Geoje Shipyard of Samsung Offshore Engineering, a middle-aged white woman dressed as an engineer carried a briefcase with a combination lock and approached the shipyard manager Yin Jong-hyun. "This is the information I got from my colleagues in China, including the details of their contact with the Norwegian Party A, as well as the specific information of the LNG ship under construction, including the information on that ship that you specifically asked Detailed design of BOG reliquefaction system. ?Alissa Clermont, one of GTTs technical representatives at Samsung Offshore. ?However, it is obvious that her business is not limited to the technical level. ?Yin Zhongxian took the briefcase with one hand and put an inconspicuous card into the opponent''s hand with the other hand: Thank you very much, Ms. Clermont. ?Clment slightly adjusted the angle of his palm and looked at the shining silver card. The account opening identity is an old farmer from Chungcheongnam-do, and the password is posted on the back of the card. Yin Zhongxian explained in a low voice. ?Then, Clemont nodded and released both hands at the same time. Remember, this reliquefaction system has a very complicated patent on the part connected to the cargo tank. No matter what you want to do, you have to bypass this, otherwise even the gods will not be able to win the lawsuit. Before turning around and leaving, she lowered her head and gave instructions. "rest assured." Yin Zhongxians attention has been completely attracted by the thing in his hand: I also studied shipbuilding. I dare not say anything else, but I can still understand patents... (End of this chapter) Chapter 917 “Minor repairs” Chapter 917 Minor Repairs ?Compared to the aviation manufacturing industry, which has attracted much attention, and the vehicle manufacturing industry, which is closely related to people''s daily lives, the shipbuilding industry in sea, land and air is actually an industry with huge influence, but its presence is not too strong. At least that was the case before the advent of the self-media era. Just like this time, a Norwegian company with a background of Zhuoer Capital approached Huaxia Shipyard to produce ultra-high value-added products such as LNG ships, and then the order was dramatically intercepted by a Korean company. This is actually quite shocking in the industry. news. After all, no matter how bad Xizhuoer is, he is still one of the top giants in the global marine engineering and energy fields. Moreover, the demand for LNG and LPG ships has indeed surged around the world in recent years. Since the outside world does not know the details of the negotiations between the two parties, it is naturally impossible to judge whether it is a scam or a real business. But Chang Haonan has not seen relevant news in any public news reports. ?There were only a few mentions in some industry newspapers. ?Of course, this is a good thing to some extent. ??This list from Zall cannot be accepted under any circumstances. Instead, it will be dumped to the Koreans as a hot potato. ?However, the details here certainly cannot be publicized through the media. ?The people who eat melons can only see the most superficial things, thinking that Samsung Offshore Engineering really stole the order. Once public opinion begins to ferment, no one can guarantee whether there will be unforeseen incidents. So there is an old saying in China that you can make a fortune by muttering... Ahem In short, shipbuilding is no better than building aircraft. No matter how fast the technological breakthrough is, it may not reach a major milestone in a few months or even a few years. ??If you want to see a result on the LNG ship matter, you have to wait for a year or two no matter what. Therefore, after the Hudong Factory had decided to avoid this pitfall, Chang Haonan did not continue to pay close attention to the matter. ?After all, it is not his main job. He only needs to be the Party B of the BOG reliquefaction system. The one who really added some extra workload to Chang Haonan in early September was the French. After coming to Beijing to report the situation that day, Liu Yongquan turned around and reported his situation and requirements to his partners. ?Snecma and Dassault were immediately shocked after hearing this. They knew before that the Chinese people immediately started research and development work on deeper modifications after perfecting the M88-2. And the project progresses very quickly. But precisely because of the fast progress, everyone subconsciously thought that this should be a transitional model, the type where performance improvements are limited but can be used immediately. Thats why the French Air Force dared to make the decision to postpone the equipment update schedule and wait until it is upgraded to the F2 technical status before receiving it It is only expected to be delayed by a few months. For projects undertaken by Europeans, that cannot be considered a delay. ??And there are some fairly new Mirage 2000C/Ds on hand that can be used, unlike the navy next door that can only use F8FR. As a result, I held a meeting with the 606 institute and found that the upgrade plan proposed by the latter mainly involved three pieces. Turbine, combustion chamber and high pressure compressor These three parts are usually collectively referred to as the core engine of the aviation engine... In addition, a new receiver is reduced in weight through diamond-shaped ribs, and the tail nozzle is changed from an ejection type to a convergent-expansion type. ?That''s it, you''ve modified the entire engine from the outside to the inside, except for the fan and afterburner. Co-authoring is just to prepare a new one? Therefore, after Ian Vista saw this document at a technical meeting, he felt dizzy on the spot and almost fell over with a black eye. Liu, I admit that your improvement plan is very... bold. ??Vestal really couldnt find any other words to describe it, so he had no choice but to comment like this: But we... still hope to come up with this improvement plan as soon as possible and upgrade the Rafale to a more mature F2 technology. As long as some envelopes can be optimized or a little thrust can be improved..." Mr. Vesta, you dont need to worry about the progress. Liu Yongquan touched his bald head and showed a confident smile: "Although according to the technical documents, the parts involved in this upgrade and improvement are indeed spread throughout the entire engine, but in general, it is still based on the M88-2 Minor repairs will not change the underlying design of the core machine itself. Small repairs? ?Vesta picked up the memo on the table again and quickly flipped through it to the end: Butthere are a total of 70 upgrades written in it? Well...not all of them are important. Liu Yongquan also glanced down at the technical documents to hide the flash of embarrassment on his face. Actually, he specifically asked the people below to pick out these 70 items, just to show that this upgrade requires a lot of work, and many of them can get some benefits from the opponent. Who would have thought that others would think the changes were too much. After a short pause, he continued to add: And, the most important thing is that almost all of them are mature technologies that we have verified on other models. Now if we apply them to the M88, the risks and development cycle are absolutely controllable. This sentence is half true and half false. The new air film hole design and combustion chamber atomization nozzle can indeed be adapted. Although it is impossible to copy the compressor as it is, the use of slits and curved sweep designs to control boundary layer separation is also what Chang Haonan learned from the turbojet 14. An idea that I have been using since the beginning. ?However, the new lightweight receiver and the convergent expansion nozzle with better low-altitude adjustment capabilities are all parts that Chang Haonan plans to use the M88-3 as a guinea pig for verification and testing. ?Of course, these two places do not involve the core part of the engine, so Liu Yongquans statement that the risks and cycles are controllable is not a lie. "this" Hearing Liu Yongquan''s assurance, Vesta hesitated a little. To be honest, the improvement of the M88-2 by Institute 606 was so fast that Snecma engineers ended it before they could even react. As a result, many places can only be understood slowly after going back. At present, M88-3 involves more improvement projects, which is also a good opportunity to practice. ?Looking at Vesta, who was bowing his head and thinking silently, the former knew that his attitude had begun to loosen, so he continued to increase the pressure. Mr. Vesta, when we had our last meeting, you and Mr. Ed Steiner mentioned that they hoped to improve Rafales performance against EF2000 through this upgrade. In our opinion, if we really want to take advantage of the competition, we must make a major upgrade to the M88 engine. He said as he took out two more pages from the folder next to him and handed them to the other party: This is the expected performance index of the M88-3 model after completing the upgrade according to our plan. Please take a look and see if you are satisfied with it. ??Vesta never expected that such a heavy thing had not been taken out just now, so he quickly received it. Turbine front temperature increased from 1740K to 1830-1850K. (Note: There is no need to replace the hot end material and thermal insulation coating)] Considering that the Rafales aerodynamic design is not geared towards high-speed maneuverability, it is considered to further increase the total pressure ratio to 30.5 to enhance subsonic thrust and fuel consumption. The air intake volume per second is increased by 7% on the original basis, used to increase thrust and provide cooling... Comprehensive calculation, after the upgrade is completed, the thrust at sea level is expected to increase from 7600kg to 8400kg, the total weight is reduced from 830kg to 790kg, and the fuel consumption rate... ?This document is not large. ?But even before he reached the second page, Vesta was convinced. Previously, Snecmas internal judgment and expectation was to increase the output by 5% based on the M88-2 and further optimize the output under large overload at medium and low altitudes... The result in front of us is completely a radical change. ?For this reason, even if you take some risks, it is definitely worth it! (End of this chapter) Chapter 918 Falcon Z Chapter 918 Falcon Z ?In cross-border cooperation projects like this, especially those involving sensitive models, what really consumes the most time and energy is often not technical issues. Hence, after the overall upgrade plan of the M88-3 was confirmed by both parties involved in the project, the next thing was actually simple. Snecma engineers who had just evacuated recently returned to No. 606. Relevant funds were also paid from Dassaults accounts to Snecma and Aerodynamics respectively. ?Of course, theres Thales M88-3, including the subsequent M88-4 package upgrade contract, were all proposed under the framework of the "Falcon NG" business jet program. This includes the transfer of technologies related to the "Damocles" photoelectric targeting pod. Thales does not care about technology transfer. After all, this is not the first time, but it is impossible to contribute to others in vain, so the transfer payment naturally falls on Dassault''s head. But then again, for Dassault, this money is entirely additional expenditure incurred to meet China''s needs. Even if it is purely from an accounting perspective, it is not easy to settle down... "boss." ??The day after Ian Vista and Liu Yongquan finalized the contract, Ed Steiner came to Serge Dassault with a financial expenditure statement: The amount we will spend on the Falcon NG project this year will most likely exceed the standard. I know that. ? Dassault nodded naturally: It wont be a problem if you overspend a little. Ill let the finance department sort out the whereabouts of the funds. He didn''t even open the financial statement. ?As president and CEO, Dassault can ignore other details, but finance and human resources must be firmly in hand. Ed Steiner is actually the technical leader and is not responsible for business management. Therefore, Dassault must have known about the cost overruns of the Falcon NG project earlier and in more detail. After all, it was just a shell project. If only three or two small sums of funds are involved, it can also be interpreted as feasibility demonstration and early project research. But as more and more capital flows are involved, overspending is inevitable. ?Dassault didnt take it seriously at all. ?Spent so much money to support so many financial experts, isnt this the time when it comes into play? ?However, Ed Steiner did not give up there. Since he came specifically for this matter that was not within his jurisdiction, he must have a deeper purpose. The previous ones are just foreshadowing: Actually, I have a better solution. This is the real purpose. ?Dassault finally stopped writing in his hand and raised his head to look at the old man who had been with him for many years. After a few seconds, he gestured to the other party to continue. How about we...really develop this Falcon NG? ?Ed Steiner made a shocking statement directly: I have read the report submitted by the civil aviation department before. Of course I know it is only for investors, but there is nothing wrong with the content. Large business jets with ultra-long range are indeed the future development direction, and although we have several paper plans in this field, we are still blank in terms of products, completely lagging behind Gulfstream and Bombardier. Furthermore, as long as the Falcon NG project is transformed from an empty shell into a real project, even if there are some additional expenditures, it will not seem so abrupt. ?Ed Steiner worked in the civil aviation sector before rising to executive positions at group level. These things are considered old skills. But now that Rafales R&D expenditure has not been fully recovered, it would be risky to start a large-scale project directly ?It is naturally impossible for a very large group like Dassault to be like a self-employed person, where all expenses and income are settled in cash. ?At the same time, if the stall is too large, the capital chain will become more fragile. Pull them together... ?Ed Steiner obviously had plans: Anyway, Thales, Snecma, and of course China, have all **** with us on the Falcon NG project... Hearing this, Dassault suddenly sat up straight... In short, in just a few days, a project research and development project document involving four participants and far longer than previously expected was placed on Chang Haonan''s desk. Mr. Chang, this is a new cooperation proposal that Dassault Group suddenly proposed to us. Please take a look. Zhang Liangping, deputy director of the Second General Affairs Office, handed the document to Chang Haonan, then withdrew and said nothing. In fact, the groups chief planner, or any leader of the group, cannot make decisions on such major foreign-related cooperation matters alone. It must be voted on by a collective vote. But considering that the entire project starting from Turbofan 10 was directly or indirectly handled by Chang Haonan, if he made a statement at the meeting, it would naturally carry considerable weight. Falcon NG Chang Haonan saw the title on the cover at a glance: Isnt this a shell project just for the purpose of developing the M88? While he was thinking, he opened the Chinese text of the document. Soon, he understood what Dassault meant. Anyway, the money has been spent, everyones relationship is in place, and the conditions are relatively mature. Then Dongfeng can completely fake it and make this Falcon NG real. ??If you calculate the time, this project launched in 2001 is most likely the Falcon 7X ultra-long-range business jet in its previous life. A model that continues Dassaults three-engine design habit. ?Its just that previous means before, now means now. In this timeline, Chang Haonan is really hard to say what Falcon NG will eventually develop. Because in this project document, Dassault proposed a total of 3 types of design plans that are similar with some minor differences. ?Each category is divided into 4 types with different sizes, and the maximum take-off weight ranges from 20 tons to 45 tons. If nothing else, at least they all adopt the more common tail-slung double-punch layout. ?Including the avionics system, Honeywell did not continue to use Falcon 900 and Falcon 2000, but was handed over to Thales Avionics, a subsidiary of Thales. As for power, it is even more earth-shaking. ??This is also the main reason why the French must involve the Aerospace Power Group - ? Dassault and Snecma plan to develop a series of medium-bypass-ratio, low-thrust turbofan engines without afterburner, with thrust ranging from 3.5 tons to 6.5 tons, based on the M88 core engine. Chang Haonan is almost certain that the reason why Falcon NG was able to become a full-time official was to avoid wasting the dumplings made by M88 with vinegar... ?Having said that, this plate of dumplings still tastes good On the one hand, from the perspective of a reborn person, ultra-long-range business jets do have a very broad space for development in the 21st century, and Dassaults prediction is not wrong. On the other hand, turbofan engines with small thrust actually have great potential. ??However, the Aerospace Power Group is limited by personnel and capital scale, and cannot roll out such a large business alone for a while. Borrowing French chickens to lay eggs seems to be a good choice. ?Of course, the other party probably thinks so too. It is a case of borrowing chickens from each other. In any case, if these models can really be put on the ground, then if you want to build large drones like the Global Hawk in the future, at least you wont have to make do with a turbojet 7 without afterburner like in the previous life. ?Thinking of this, Chang Haonan basically had an idea. ??Although Dassault''s sudden attack is a bit suspicious of putting other companies on a rack. But it can make money now, but it will have other uses in the future. There is really no reason to disagree. As long as the risks are properly controlled. The plan is pretty good. Chang Haonan closed the document and said to Zhang Liangping: Thats the name... I suggest the French change it. The former said, reaching out and lightly tapping the words "Falcon NG" on the cover. NG, which is NextGeneration, the next generation. ?Affected by the indiscriminate bombardment of various abbreviations in his previous life, Chang Haonan has been allergic to elements such as "advanced", "next generation" and "future" until now. Although he had tried a similar name in a bad way before, the abbreviation was so long that he couldn''t even remember it. So later, unless it was on official documents, everyone started to use shorter abbreviations. ?Of course Falcon NG does not involve this aspect. Anyone who has seen it can never forget it. ?However, according to Chang Haonans experience, nine out of ten projects with these elements will die suddenly midway. In other words, the Gripen NG and Boeing 737NG are relatively normal. ??If the project is completely controlled by him, then this little bit of mystery doesn''t matter. But there were French people involved after all. Its still too unlucky. "Um" Although Zhang Liangping didn''t understand why Chang Haonan cared about such details, he still nodded: Dassault will probably not reject such a small problem. What do you recommend changing it to? ?Chang Haonan really didn''t think about it for a while, so he lowered his head and fell into thinking. Seeing that his leader was silent, Zhang Liangping thought that the other party wanted to hear his opinion, so he tentatively asked: Our business jet model is expected to be world-class in terms of economy, safety and comfort. Otherwise, how about calling it Falcon MAX? ?This name immediately made Chang Haonan''s eyelids twitch. Laughing to death. Your suggestion is very good, please dont suggest it again in the future. I remember that Dassaults last business jet project was called Falcon X. ?He directly ignored the even more ominous name of Falcon MAX: Then lets call Falcon Z... (End of this chapter) Chapter 919 Targeted "Sleeping Grass Party" Chapter 919 The "Sleeping Grass Party" Targeted Actually, Zhang Liangping is very curious as to why X is not followed by Y, but jumps directly to Z. ?However, after a lot of fighting between heaven and man, he finally decided not to ask the leader such a question. Just execute it and youre done In short, Chang Haonans opinion was unanimously adopted at the team member meeting the next day. ?In this way, the four main participants in the "Falcon Z" business jet project have reached a consensus. ?Of course, this time the Falcon Z is a serious civilian project, so a cooperation signing ceremony still needs to be held. In Paris. The group finally decided to send Comrade Lin Zuoming, deputy general manager, as its representative. Dassault was obviously eager to start construction, so all processes were speeded up and simplified, and the time was finally set at... Five days later on September 11th. When Chang Haonan heard the news at the meeting, he almost couldn''t hold his breath. How to say ??This press conference will probably not attract much attention. After all, Chang Haonan has tried his best over the years to avoid having too much direct impact on the Middle East. ?There is no reason to go too far in that matter. ?The reason why he finished most of the energy-consuming things last month was to wait for this wave and see if there would be any opportunities to take advantage of the chaos. ??Its just that the French suddenly got a wave of intensity in the middle. ?Ultra-short laser processing is still in the prototype verification stage after all. Except for a very few people, including Chang Haonan, they actually do not know how to specifically set processing parameters based on the characteristics of the materials being processed. In fact, even Chang Haonan can only roughly determine a direction, and then conduct specific processing tests, accumulating data while determining process details. As an engine with French or American origins, the M88 is naturally different from the turbofan 10 in the use of materials. In other words, before processing the turbine disk and turbine blades for the M88-3 engine, Chang Haonan still needs to be responsible for a considerable part of the work himself. Fortunately, Liu Yongquan''s work efficiency is not as fast as Chang Haonan''s. In addition, the number of prototypes is not large, and Snecma itself can barely cope with it using electrochemical processing, which finally leaves some free time for Chang Haonan. ?However, if we do not look at it from the perspective of hindsight, the first eight months of 2001 were actually quite uneventful. Therefore, there are only a very small number of people who can predict in advance that something big will happen. ?While Chang Haonan is ready to take advantage of the situation, many projects influenced by him are still advancing in different forms. Qin Province, Haojing. ?A few hundred meters away from the fence of Hokyung Airport, a group of young people with cameras in their hands were squatting on a slightly higher slope, ready to press the shutter. ?Through the high-power lens, they could vaguely see a fighter jet that had been painted in gray and was making final preparations for takeoff on the tarmac of the flight test center. Its just that the view here is really poor, making it difficult to take very transparent photos of the interior of the airport. So, these people have been squatting here for two days, just waiting for the plane to take off Due to the continuous expansion of the city and the rapid development of the Internet in the past two years, many people in Chengdu have long mentioned that there is a new type of aircraft that has never been seen before and is undergoing intensive test flights. Not long ago, another witness saw this strange-looking aircraft appearing in Haojing. They came here just to capture a clear photo. In fact, as someone who has been paying attention to Chinas aviation industry for a long time, it is not difficult to guess the model of the aircraft in the distance just based on its distinctive design features. It should be a J-10. However, unlike the version unveiled at the 50th Anniversary National Day military parade the year before last and the Paris Air Show last month, this aircraft not only uses a non-adjustable DSI air inlet, but the entire fuselage is no longer the same as before. She became slender and slim, and became much richer. Especially the iconic wasp waist on the old model, which has been replaced by a more rounded design. Obviously, this is an improved version based on the J-10 and still has most of the characteristics of the J-10. But the improvement is indeed very large. Similar to the radical change from F18C/D to F18E/F, or from F16 to F2. ? All this seems to mean that the air superiority and even air interception functions originally carried by the J-10 are weakening and are developing in a more versatile direction. From this angle, it looks like...the fuselage section looks a bit like EF2000? ?One of the people took his eyes away from behind the binoculars and asked his companion who was preparing to operate the camera next to him: Anyway, I am much fatter than before Seeing that the plane had no intention of taking off, the latter also turned around and retorted in a low voice: How can this be called fat? Its obviously the feeling of a sixteen or seventeen-year-old girl growing up to her twenties. This is called mature beauty. You are too young to understand this feeling This man is obviously an experienced driver, and this description was unanimously approved by his companions. ??As senior sleeper gang members, their concealment equipment and level are comparable to those of professional scouts. Unless its close to your face, its hard to notice anything strange in the grass. ?This is also the biggest reliance on their repeated success in secret photography. And in a situation where the enemy is in darkness and we are in the clear, the busy staff inside the wall obviously have no way of knowing that they have been included in the viewfinder... At this time, they were busy loading test equipment on the J-10, numbered 1007. A cylindrical pod with the same color as the fuselage. ? Around the aircraft, there are many technicians from the Luoyi 613 Electro-Optical Equipment Research Institute, who are making final adjustments to the pod. ? There is no doubt that this is the good thing that Chang Haonan got from Thales Group through the M88 engine project. ?Damocles pod. According to the contract, China will introduce a full set of technologies to localize this pod. It''s just that the French are not fools, and they know very well that they don''t let go of the hawk until they see the rabbit. At this time, the M88-3 is still under development, and the M88-4 is even worse. Obviously, it is impossible to destroy the family''s fortune so quickly. Fall out. But in order to show sincerity, they asked Thales to specially produce several open data bus pod hardware, so that China can install the pods on its own aircraft. Logically, this task was handed over to the Luoyi 613 Institute, which is affiliated with the Aviation Power Group. That''s why today''s test came about. The No. 1007 carrier aircraft is the first prototype of the two-seat J-10AS The single-seat J-10A has entered the final stage before small batch production, and there is really no time for testing. Besides, this kind of test task depends on the pod, and it is more suitable to hand it over to an aircraft with two pilots. For the flight test institute, the job of serving the J-10A is already a familiar one. Unlike the J-11, which has a different model for each model, the technical status of the single- and double-seat models of the J-10 is almost exactly the same. It is equipped with a lower-casing engine that does not require climbing up and down during maintenance. The experience was very friendly for the ground staff. ?Ten minutes later, technicians from the 613th Institute completed the final inspection and debugging of the pod, and together with the ground crew, evacuated from the area around the aircraft. As one of the advantages brought about by the "wide body and fat body", the J-10A has sufficient space to install an auxiliary power system (APU) in the body, so it does not require the assistance of a power supply vehicle and an air source vehicle every time it is started. In the cabin, the pilot Ning Songtao, who was in the front seat, started the self-starting process of the aircraft according to the manual. ?As the APU exhaust hatch on the back of the aircraft opened, a faint flame spurted out, and the unique scream of the turbofan engine quickly increased from weak to strong, reaching the ears of everyone present. After the engine started working, the electrical system of engine No. 1007 started quickly and completed the self-inspection process in a very short time. In the past, these steps would have taken nearly half an hour to complete step by step with the assistance of ground staff. Now it only takes a few minutes. ??Ning Songtao adjusted the engine speed to idle and then released the brake. The plane then began to move forward slowly on the tarmac. ?The fly-by-wire flight control combined with the FADEC system makes this series of movements flow like clouds and water, with almost no lag. While taxiing to the take-off position, Han Shuming, who was in the back seat, finally said goodbye to the fate of ballast and began to lower his head to adjust the probe of the "Condor-1" (the name of the Chinese version of Damocles) pod. angle. ?Although the main function of the Condor 1 pod is to provide target guidance for laser-guided bombs or missiles, the design of the Damocles pod itself determines that it actually has anti-air capabilities. ? Its just that the pod hung under the fuselage has a poorer field of view for air detection than the EOTS located on the nose, so this function is rarely actually used. But after all, when the plane was taking off, Han Shuming couldn''t stare at the runway below his buttocks, so he had to look directly in front of the plane. The French thing is really effective... He whispered to himself. Even if the image is magnified several times and the carrier aircraft continues to accelerate on a slightly bumpy runway, the two-axis stabilizer of the pod still maintains the image in a fairly stable state. ?Han Shuming tried tapping the screen and set a signal tower far ahead on the left side of the runway as a target. The image recognition function quickly distinguishes the target from the background and automatically controls the pod probe to lock on the signal tower. The lock was not released even after the aircraft took off and climbed. In fact, the optoelectronic equipment in the middle and late Cold War, such as the MiG-27K Puffin-23, already has this function. But for Chinese pilots in this era who have almost never come into contact with airborne optoelectronic aiming equipment, it is definitely a relatively new thing. Whats more, Damocles also supports both infrared and visible light signals. Thinking that we havent reached the test airspace yet, Han Shuming, with the intention of giving it a try, pressed the infrared button next to the multi-function display and adjusted the field of view to the thermal imaging channel. By the way, the lock on the signal tower was unlocked. ?At this time, Ning Songtao in front also happened to level the plane gradually and entered a shallow climb stage. ?This leveling change made Han Shuming accidentally discover something interesting. Several small white dots appear in the field of view of the multi-function display. And that should be a hillside outside the flight test institute... Out of curiosity, he directly increased the image magnification of the pod to the maximum. Then, I saw a few things that looked a bit like humans... Tower, this is Unit 1007. ?Han Shuming reported directly to Radio Network: About 140 directions from the airport, 800 meters away, it seems like a group of people are filming us secretly? (End of this chapter) Chapter 920 Precision guidance era Chapter 920 The Era of Precision Guidance Facing the high-walled power grid many years later, these members of the Sleeping Grass Party will recall that distant afternoon when they were suddenly dug out of the grass by a team of military dogs Until they were pointed at by a row of black guns, they couldn''t figure out how the other party found this place. It took several decades before one of them saw the relevant description in a memoir Very lucky, or very unlucky. They became the first batch of "contest results" of the Chinese Air Force''s first laser targeting pod. It is a pity that this record has not been included in the war history. ?However, the first officially recognized achievement of the Condor 1 pod was not much better than that on the night of September 2001. Of course, this is all for later. Especially for those unlucky ones who got caught. In fact, in 2001, the security departments attitude towards groups such as the Wall-Climbing Party and the Grass-covering Party was basically that they would not take the initiative to deal with them unless they went too far. So, this group of people should have been criticized and educated, and at most detained by public security for a few days, then released. ??However, one of them was so frightened that he confessed and admitted that he had contacts with overseas intelligence agencies. ?At this time, not to mention several other accomplices, even the police comrades responsible for routine interrogation were shocked. Overseas intelligence agencies. The shining third-class merit. The nature of the matter immediately changed. Although these people met online, they had not had many offline contacts in the past, so the other people most likely have nothing to do with it. But some things cannot be weighed even if they are not weighed by four ounces, and they cannot be weighed by a thousand catties. ??Although it will not be counted as an accomplice, secretly photographing secret military areas is a crime in itself. ?As a result, they became negative examples and experienced first-hand what it means to have a camera pointed at the airport and life in a prison cell. ?For a time, even the candid photography teams in Shengjing, Chengdu and other places were in a panic, and they quickly fell into mutual suspicion. After all, whether they are climbing walls or lying on grass, most of them are just curious in nature and do not really want to use the information for anything. And the real spies who were bribed are not in the same camp. Eventually, almost all of these small groups disintegrated one after another, and the security department also entered a period of relative purity... This is naturally a matter for later. As for the laser targeting pod test on September 6th, after such an incident, it naturally ended successfully. Prototype No. 1007 successfully achieved stable tracking and targeting of 14 moving targets of three categories at a shooting range southwest of Hokyong. ? Its just that the J-10AS itself has not yet reached the stage of weapons testing, and the few laser-guided bombs currently equipped in the country are imported, so it is really reluctant to throw them away casually, so the real bomb test still has to wait for the same type of domestically produced ammunition. Fortunately, Norinco''s "Tiange" series of laser-guided bombs have entered the middle and later stages of the research and development cycle. After the laser coding of the pod is determined, they should soon enter the live-fire test stage. When the Aviation Industry Corporation was split up, Luoyi 613 Institute was won over to the Aviation Power Group. In addition, the introduction of the Shenying 1 was a project that Chang Haonan advocated, so the test results were naturally sent quickly. In the hands of Chang Haonan. "Mr. Chang, judging from the test results, the adaptation relationship between our domestic data bus and the pod provided by Thales is good. The fire control system can operate normally and aim at the pod for full-function operation. The next step is to implement it based on the law." We have used the technical information provided by the party to localize the pod hardware. ?Lu Guangshun, the chief designer of the Shenying 1 project and also the deputy director of the 613 Institute, reported to Chang Haonan. The introduction schedule of the Damocles pod is related to the upgrade schedule of the M88-3 and M88-4. ?Chang Haonan put aside the report that had been turned to the last page: "Within this year, we should be able to obtain relevant information on the high-precision two-axis gyro-stabilized platform. By then, you can take down this most critical technology as soon as possible, so that at least we can target the most basic functions of the pod. Not controlled by others. "As for the non-cooled thermal imaging equipment, Thales is very serious about it. I am afraid that I will have to wait until the M88-4 plan is released in the future to get it. I have asked the 606 Institute to speed up the progress as much as possible, but this kind of thing is not possible after all. It can be done overnight. Hearing that Chang Haonan could guarantee that a core technology would be in place within the year, Lu Guangshun breathed a sigh of relief: "It''s okay, Mr. Chang, we..." At this point, he smiled bitterly: Our progress should not be as fast as you think. After all, there are many projects at hand and our strength is somewhat scattered..." I have a rough idea of ??the size and capabilities of your 613 team. ?Chang Haonan waved his hand to interrupt the other party''s explanation, and then continued: So, I didnt say I would set a specific research and development timetable for you. However, you must also realize that high-precision gyro stabilization related technologies will be very helpful for other projects in your hands, especially the development of inertial navigation systems for long-range missiles. At this point, he stretched out his hand and tapped the report in front of him for emphasis: So, you cannot regard Shenyang 1 as a task of the same level as other projects. Instead, you should concentrate your efforts on completing it first, at least prioritizing the digestion and absorption of inertial stability control technology. Although Institute 613 is called the Electro-Optical Equipment Research Institute, its business scope is not limited to the research and development of photoelectric detection or laser TV equipment in traditional concepts. In fact, for most of the past time, their main job was to develop inertial navigation equipment such as gyroscopes for various missiles and rocket weapons. After all, no matter how sophisticated the guidance form is, it must rely on motion-sensing stability control to achieve it. For a long time in the past, this was the main shortcoming that restricted the accuracy of our country''s long-range weapons. ?Lu Guangshun nodded and wiped the sweat from his forehead: YesI understand. ?Chang Haonan has been in the management position of the Aviation Power Group for almost two years. ?Although most of the time they are responsible for front-line research and development work, if they really get serious, it can still give people a sense of oppression. ?Seeing that the other party was already tense, Chang Haonan did not continue to increase the pressure, but changed to a relaxed tone: As for the specific production form, you can talk to the aviation force and listen to the opinions of users. ?At the turn of the century, the People''s Liberation Army was still in a stage of "whatever it is useful for". Although this situation has changed a lot due to Chang Haonan''s efforts, it still takes time to change the way of thinking. A large number of technical staff still hold a self-centered equipment development idea and are not interested in solving user pain points. Not positive. It also became the main conflict between Party A and Party B during this period. As a reborn person, Chang Haonan not only has advantages in the technical field, but also has more advanced commercialization ideas. Its just that in the past, this brilliance was often overshadowed by his other advantages. In short, Lu Guangshun, who was next to him, had already taken out his notebook from his pocket and looked like he was listening carefully. "If their budget is not enough, you can actually consider first producing a targeting pod with white light alone, or white light plus a low-light night vision channel. This is more controllable in terms of technology and cost, and can at least be used during the day or under illumination. Conditions are not that bad for night use. "And if the aviation force really needs night use and training, they can also consider importing some finished uncooled thermal imaging equipment from Thales to solve the most pressing problems of the army, and then localize it when conditions are available in the future. Alternative In fact, the current training level of the People''s Liberation Army aviation unit is indeed difficult to describe. Let alone night fighting, night flying is a skill that is not practiced often for many units. As for air-to-ground precision guided munitions Approximately the same as the mid-range bullets from 1996. The whole army may not have a few crews that have fought. Therefore, for Chang Haonan, it is better to let the aviation generally enter the era of precision guidance before considering further matters. Fighting rockets is a fine tradition of our army and can certainly be retained. ??But a modern air force cannot rely solely on rockets for air-to-ground combat... (End of this chapter) Chapter 921 Big changes Chapter 921 Big changes September 8, 2001. ?Wu Yifan finally returned to China before that critical day In the past six months, the latter has been active in the South Caucasus and Central Asia, opening up a safe passage from Eastern Europe to the Levant for Chang Haonan. If nothing else happens, these areas will soon become the focus of the world. In fact, according to the experience of the previous life, if it is really dangerous, the most dangerous stage in the Middle East should be the ten years after 2005 until 2015. ??The U.S. military completely shattered the order in the Mesopotamia with some outrageous operations. In the end, a certain black flag force emerged from it, which is truly chaotic and evil. The kind that doesnt make any sense to you. ?Not only did it turn the entire region upside down, but even its behind-the-scenes supporters were backlashed. On the contrary, from the end of 2001 to the beginning of 2005, although it was said to be a war, there were not many decent exchanges of fire, and overall it was relatively stable. ?After all, whether it is the US military or the "base", they are serious organizations that can speak human words. They just have different positions and demands. If you can communicate, it will be easier to handle. But Lao Wus resources and abilities are too important to Chang Haonan, and there is no room for sloppiness. ??It would be safer to get him back to the country in advance. ?Lets take a look at the situation in a few months. If there are no big changes, it wont be too late to let the other side go to the Middle East to cause trouble. If the plot direction deviates greatly from the previous life, then you can only take one step at a time. ?According to the usual practice, every time Lao Wu returns to China, Chang Haonan will personally greet him in the box of the Torch Group canteen. Even though the two of them could communicate via radio or secret messages from time to time when the former was abroad, it was literally a word worth a thousand dollars. It was good to be able to finish talking about the most important things, and there was no way to add details. Since Lao Wu has been in the Middle East most of the time in the past two years, it is difficult to use even these contact methods. Just like this time. In fact, as early as June, Chang Haonan randomly found a reason and asked the other party to put down all the work at hand and return to China as soon as possible. But the news was not received until early September. Fortunately, its not too late. In short, every reception is an excellent opportunity for Chang Haonan to obtain first-hand information on hot spots. It''s just that this time he returned home early due to unexpected circumstances, so he didn''t have much expectations for the news that Lao Wu brought back at first. However, the reason why surprise is called surprise is because it appears unexpectedly... ??After the waiter brought all the dishes, Wu Yifan poured himself a glass of beer as usual, drank it all and said: Brother Nan, I have some speculations that Im not sure about, but I still feel like I should tell you Chang Haonan generally does not drink alcohol unless necessary, so he just lowers his head to eat the food and nods to indicate to the other party to continue talking. I think the Americans may launch another combat operation in West Asia within a few years...actually within one to two years at the earliest! ?) ?This sentence made an astonishing judgment that shocked Chang Haonan. Afghanistan is right on the edge of West Asia. Thiscough cough cough In his haste, Chang Haonan was choked before he could say anything. I have been coughing for a long time before I finally recovered: This...where does this judgment come from? ?His expression and tone that he had seen a ghost were not fake. As a reborn person, Chang Haonan naturally knows roughly what will happen in the next few days. ??However, as a person without a prophecy book, Wu Yifan was able to guess so accurately that even the time was quite different... I can only say that it is indeed a bit outrageous. After all, at this moment, at least on the surface, everything is still in a calm stage. This reminded Chang Haonan of some conspiracy theory analysis in his previous life. That is to say, the CIA, DIA and other U.S. foreign intelligence agencies had actually known for a long time that there would be an attack on their homeland. It was just out of consideration for the interests of the department, and they really did not expect that the other party would play such a big role, so they chose to add fuel to the flames. Or at least let it happen. ?However, there is really no solid evidence, and it only stays at the level of its own logical closed loop. Secondly Even if this is true, it must be the top secret of the relevant units. Otherwise, after so many years, people should have been caught. In short, as an outsider, Lao Wu should not know in advance. ?It is impossible that he has already penetrated the relationship to the higher-ups on the opposite side... ?Just when Chang Haonan''s brain was spinning rapidly, Fang Wu''s reply directly dispelled his doubts. I have been active in Erbil and Sulaymaniyah in recent months, and I heard about it from several tribal leaders there. "ah?" ?Chang Haonan was immediately stunned. I immediately realized that I had gone astray. ?West Asia is a very large place and includes many countries. It''s just that during this period, his attention has been focused on that country, so he made a wrong judgment based on his mindset. In fact, the two place names mentioned by Lao Wu are located at the junction of northern Iraq, Turkey, and Persia. They are mountainous and mountainous, and the population is mainly Kurdish. In a place like this, there has naturally been a strong tendency to separate for a long time. The reason why he stayed in this place for a long time was because of its indifferent nature and the terrain that was conducive to smuggling. Many studies have shown that the ancient Silk Road most likely passed through this place all the way west to Rome. Furthermore, the outbreak of the second Gulf War was indeed not an unexpected event. But there have been clues since the beginning of the 21st century. In particular, the U.S. military suffered a huge defeat in the Allied Forces Operation in 1999, and the defeat was inexplicable. As a result, the younger brothers under them are now ready to take action. ? And more countries have begun to think about a problem - ??America, is this okay? So, they urgently need an opportunity to prove that they can do it. Hence, he will only behave more positively than in the previous life. ??Although this kind of behavior of losing face somewhere else and then trying to regain it by beating up one''s own horse sounds very abstract. But Americans thinking seems to have always been like this ?Seeing Chang Haonan lower his head and remain silent for a long time, Lao Wu thought that his explanation was not convincing enough, so he further explained: "Some time ago, in order to initially figure out the route, I have been doing serious business from Central and Eastern Europe to the Kurdistan Region. I heard the same American name many times, called Zalmay Khalilzad." As he spoke, he took out his wallet from his pocket, pulled out a photo from a pile of colorful banknotes from various countries, and handed it to Chang Haonan. is a group photo. In the midst of a crowd of people dressed in robes, turbans and bearded men, a man in a suit with a Jewish face and a Mediterranean haircut stood out quite clearly. ??Wu Yifan wiped his hands on the towel next to him, and then continued to explain: This persons official identity is that of a diplomat, but he is actually using his immunity to do some conspiring and subversive work. I dont see you in this photo? ?Chang Haonan was a little curious: How did you get it? Hearing this question, Lao Wu immediately became happy: I used to sell some mechanical parts from Europe to the Kurdistan Region. Since I wasnt trying to make money anyway, I set the price very low. There were a few managers there who thought I wanted to engage in political speculation through them. "Then what?" ?Chang Haonan raised his eyebrows and returned the photo to Lao Wu. Then several groups of Kurdish forces made offers to me, saying that if I could only organize low-cost supplies for them in the future, then after they became independent, they would give me an official position in Kirkuk. The latter said as he put the photos away: This photo was taken by one of them to prove that they have the support of the big boss... I fuck Chang Haonan shook his head helplessly: I really dare to draw this cake, even the post in Kirkuk has been taken into account... ??Kirkuk is the main oil-producing area in the Mesopotamia, so the official positions there are definitely lucrative. The only problem is that Kirkuk does not belong to the Kurdistan Region and has been directly controlled by the US military for a long time after the war. ?Taking the position here to make a wish is basically equivalent to Cao Caos promise at the end of the Eastern Han Dynasty that he would make you a shepherd in Yizhou... You know whats the funniest thing? At this point, Lao Wu could hardly hold back his smile: About four or five forces have asked me to provide exclusive supplies to them. As a result, the conditions they offered me are almost exactly the same, and even the positions are similar. Later, I asked more specifically and found out that it was actually Khalilzad who had promised the management of the northern part of the country to many people at the same time... Pfft ?Chang Haonan didn''t hold back either. Obviously, this is already ready to kill the donkey. Youd better not get involved in these things. Its too dangerous. Let them go dog-eat-dog. Chang Haonan waved his hand and said: Moreover, in the long run, the chaos in that area will help more countries realize the nature of the United States foreign power and its internal power. This is not a bad thing for us..." (End of this chapter) Chapter 922 A shocking collision Chapter 922 A shocking collision Originally, Chang Haonan was going to wait at home to see whether the big news would really come that day. ?However, by coincidence, on the afternoon of September 11, the Committee of Science and Industry organized a symposium on the development of the aerospace industry. In fact, originally, this matter should have nothing to do with the Aerospace Power Group. ?However, Chang Haonan, as a major participant in the Ziyu-2/Haiyang-1 satellite, and more importantly, the general manager of Torch Group, was separately invited to attend. ?Then there is nothing we can do. Symposiums are relatively casual in form. For most attendees, there is no need to prepare in advance. ?Including Chang Haonan himself, he only received a temporary notice the day before that he might be required to report on the work status and future plans of Torch Group. But this symposium was of a very high level. ?In addition to Ding Gaoheng and the three deputy directors, there were even senior leaders in charge of the development of the science and technology field. ??Chang Haonan, as a deputy director of a second-level central enterprise, even became the lowest-ranking person among the attendees. Just because of well-known special reasons, he was still assigned to a position relatively near the front of the conference table. Considering that the theme of the meeting is related to aerospace, it is natural that Luan Wenjie, who is still the director of the National Space Administration, will host it. ?Of course, this kind of internal meeting is not a retreat, and there is no host in the strict sense. Luan Wenjie can only be regarded as the first to speak. ?After a few words of opening remarks, he first quickly summarized China''s achievements in the aerospace field in the past few months. The most important thing is naturally the Shenzhou-2 spacecraft that was successfully launched at the beginning of the year. Shenzhou-1, launched at the end of 1999, can essentially only be regarded as a "prototype". In order to ensure the launch node, many equipment and systems have not yet been installed. But starting from Shenzhou 2, it is a full-state spacecraft with complete technical status and actually capable of manned flight. From then on until the truly manned Shenzhou 5, there were only adjustments at the payload level. Therefore, it is certainly worthy of a special write-up. ?Chang Haonan is also ready to fight a protracted war. ?However, to his expectation, this part was still very short. Regarding the progress of the manned space project and the preparations for the lunar exploration project, the space agency has submitted a special report to the superiors, so it will not be the focus of our meeting. Before Chang Haonan could react, Luan Wenjie went straight into a summary, and then changed the subject: Next, I will report on the parts of the plan that have not yet been realized... The first is the Haiyang-1 test satellite, which was originally planned to be launched before the end of this year, but its development was blocked due to external reasons. At present, the hardware-level problems have been basically solved through partial domestic substitution and partial replacement with other foreign suppliers. " As for the software level Luan Wenjie said as he glanced at Chang Haonan, who was sitting diagonally opposite: In fact, as early as the beginning of last year, the National Remote Sensing Center had determined the feasibility of mining deeper data from satellite remote sensing information through the Ziyu-2 satellite, and these data have been used in disaster prevention and reduction, environmental protection, and national played a role in the four major projects of the new century. Its just that the tests at that time were mainly completed with ground equipment, and due to the time-sensitivity of remote sensing objects, ocean satellites need to perform part of the data processing on-board to improve timeliness..." This topic is actually closely related to Chang Haonan. ?However, the long speech was mainly completed by Luan Wenjie himself. Chang Haonan only occasionally had to interject when the leader was interested in specific technical issues and the situation of the Ziyuan-2 satellite. However. Escaped the open shot of the Haiyang-1 satellite, but not the subsequent hidden arrow. The symposium even lasted until after dinner. General Manager Wang Hengli of the Aerospace Science and Technology Group began to introduce the next-generation launch vehicle being planned, and focused on the theoretical research and development of low-temperature structural dynamics, heavy-duty rocket body stress distribution optimization, high-frequency combustion oscillation of liquid fuel, and atomization evaporation combustion processes. Model verification and more than a dozen questions in a row. ? Even if not all, at least two-thirds are directly related to Torch Group. ?At this moment, Chang Haonan finally understood why he was specially called here today and arranged to be in such a front position As soon as Wang Henlis report ended, almost everyones eyes focused on him. ??Had I not experienced hundreds of battles over the years and seen a lot, I would probably be a little trembling when faced with this situation. Fortunately, it takes ten years of work off stage and one minute on stage. Even though he only received the news yesterday, Chang Haonan definitely knows the situation of Torch Group very well. ??If it werent for showing respect, he wouldnt even bother to pick up the manuscript: Since General Manager Wang Hengli just mentioned no less than the technical issues related to our group, I am here to give reassurance to the comrades in the aerospace system. "Perhaps some comrades know that I published a paper in the first issue of the Journal of the Chinese Academy of Sciences in the first half of this year. The content is a modified level set method that is strictly conserved. This is also the next stage of our Torch Group. Or strictly speaking, the main direction of work starting in the second half of this year. "TORCH Multiphysics 2.0, which will be released by the end of this year or early next year at the latest, will involve two new methods, two new models and fifteen new preset problem frameworks to solve the most pressing problems of key users... " ?Every time Chang Haonan turns a page, it is actually not to read the manuscript, but to tell the time through his movements. If he remembered correctly, the shocking collision should have happened before going to work in the morning Eastern Time. That is the evening of the same day in Beijing time. And after having meetings all afternoon and half of the evening, that time is getting closer and closer. Although Chang Haonan told himself a few days ago that he had not done anything that would cause this matter to go wrong since his rebirth. But the butterfly effect is sometimes illogical, so it is absolutely false to say that I am not worried at all. After all, the matter is big. Even if it is biased to attribute the decline of the United States entirely to its failed Middle East policy, the latter is at least a very important reason. ??And the trigger. Time passes minute by minute. ?Just when Chang Haonan turned to the ninth page of the information, the access control system of the conference room suddenly sounded a beep. Indicates that someone is ringing the bell outside. For a moment, everyone turned their heads and looked at the door with either surprise or confusion. Normally speaking, no one will interrupt such a high-level meeting unless something shocking happens. Only Chang Haonan exhaled a long breath. Then, without concealing it, he raised his hand and glanced at the dial. If the time of the incident remains unchanged, it should be 8:46. ?Of course, the message must be confirmed, delivered and conveyed in the middle, which will definitely take some time. So now As if it was destined. 9:11 pm. A number made entirely of coincidence. At this time, the door of the conference room was also opened by the conference staff inside. Two secretarial-looking staff walked into the room quickly, then went straight to the two leaders at the head, bent down and whispered for a moment. ?Chang Haonan was very sure. The moment they heard the news, a trace of astonishment flashed across their faces. Ding Gaoheng''s left hand even trembled violently, and he dropped a drop of ink on the notebook open in front of him. But he didn''t even notice it. After a full minute passed, the leader who came to the meeting took action again. Shaked slightly. Obviously wanting to get up. But it was not successful. Fortunately, the secretary next to me calmly gave him a hand, and the leader quickly stretched out his hand to support the armrest of the seat, and then he stood up straight. "Comrades, due to some emergencies, today''s meeting... will be held here first." Thank you for your hard work, everyone is on duty in the office tonight. Related news, a briefing should be sent to you soon..." ?For major events like this, there is a strict distinction between what kind of information people at different levels can obtain. Therefore, even superior leaders cannot immediately tell everyone what they have heard. That''s why there is such a statement that is similar to the Riddler''s. ?However, those sitting in this conference room are all veteran comrades who have experienced many battles, so they naturally understand this aspect. The meeting is dismissed! ??While the leader was packing up his things, Ding Gaoheng quickly added something to the side, and then motioned for all those present and present to leave separately. Chang Haonan is now suppressing his excitement and is preparing to take a first-person perspective to see what happened on T+0 day. So, after hearing the word "dismissed", he quickly put the documents and notebooks into his briefcase and prepared to leave immediately. As a result, things backfired. Before he could stand up, he heard Ding Gaoheng add: Comrade Haonan, dont leave in a hurry. ?) At that moment, Chang Haonan''s breathing almost stopped. "The superior leader just said... let you stay for a while." (End of this chapter) Chapter 923 Chief, this really has nothing to do with me. Chapter 923 Chief, this really has nothing to do with me. ?Originally, Chang Haonan was still thinking about how he should participate in the response to this incident in a reasonable way. After all, the situation is different from the previous Allied operations. At that time, he had started planning very early. The core of the solution is the technical equipment developed by him. With this relationship, it is natural to join the decision-making process. Now, after all, we are facing emergencies. On the one hand, Chang Haonan cannot be too prophetic. On the other hand, there is really no way to prepare in advance. Let alone him, in fact the whole of China can only react passively. In this case, he, a central enterprise manager who is mainly responsible for technology, seems to have no reason to get involved. Moreover, lets take a step back. Even if it is not from the perspective of making suggestions, just considering the convenience of eating melons, it is more appropriate to stay near the decision-making center. Information spreads from inside to outside and from top to bottom, and there is a time lag. And this diffusion process will inevitably lead to information distortion. ??Although since the incident occurred in the United States, it is difficult for China to obtain "first-hand information" in the true sense. But places closer to the source of the news still have better timeliness and accuracy. One of the most typical examples is. ?In the last life, Chang Haonan didnt learn the news through the news until noon the next day. Now, he probably only knows about it more than twenty minutes later than the other side of the Pacific Ocean. In 2001, it was definitely very efficient. Fortunately, before Chang Haonan could come up with something, his superiors took the initiative and asked him to stay alone. Soon, only a few people, including Chang Haonan, were left in the huge conference room. Both leaders, can you ask...what happened? ?Performing all the drama, Chang Haonan actually didn''t hear anything just now. In theory, he shouldn''t know why the meeting was suddenly suspended. ??The two people sitting in the first place looked at each other, and finally Ding Gaoheng quickly explained the current situation to Chang Haonan while sorting the documents quickly: Due to unknown reasons, a Boeing 767 passenger plane It has caused a large number of casualties and serious fires, but there is no further news. ?His voice was trembling visibly. At the end of the sentence, I even sounded a little hoarse Its not because of emotions. In other words, facing such a complicated event in such a short period of time, Ding Gaoheng had no time to think about what emotions he should feel. It''s just a physiological reaction simply out of extreme shock. ? And. Although the conference room has become a little empty. Although Chang Haonan already knew what would happen today. However, when the news came out from Ding Gaoheng''s mouth, the atmosphere froze for a moment. Even Chang Haonan himself didn''t notice that his hands, like Ding Gaoheng who first heard the news, trembled violently. ?However, this is not because of shock. It is the sudden relaxation after "all the dust has settled". ?Of course, Chang Haonan has tempered himself over the years and does not really show his emotions on his face. Sois At this time, the chief next to him took over the words: Although the current public statement is that the cause is unknown, it would be too coincidental to say it was a mechanical failure. Lets talk behind closed doors. There is a high probability that this was a premeditated attack. So, just like the situation during Operation Allied Force, each system needs to meet immediately to determine the current situation and what response should be made next. Including letting you stay, Comrade Haonan, is what President Fu Youquan specifically requested just now. Hearing that it was the leader he had dealt with before, Chang Haonan breathed a further sigh of relief and leaned back on his chair: But... we were somewhat prepared for the Allied Forces Operation. This time around..." He pretended to be silent for a while: If it was an attack, who did it? Now that things have just happened, there is too little news, and there are various rumors, and the accuracy is difficult to verify, so it is too early to say anything. ?At this time, Ding Gaoheng had already packed up his things, got up and walked towards the door of the conference room: Comrade Haonan, come with me and go to Jingxi Hotel. At this time in 2001, the Bayi Building on Fuxing Road had actually been built a long time ago. However, this building, which was originally intended to be the office of the military, did not actually perform its due functions and only became a ceremonial place for the military. The real office and meeting places are still in the same old places. Jingxi Hotel is one of them. In fact, most high-level meetings are held here. It''s just that Chang Haonan was too lucky. The two internal meetings he participated in before were all kept extremely confidential. They were only responsible to the top leaders. Others, as long as they were not relevant personnel, had no way of knowing, even if the level of confidentiality was high enough. kind of. They are all handled directly at Sanzuomen. So, I have never been to this top venue under the General Staff Headquarters. ??When Chang Haonan and Ding Gaoheng took the car all the way and finally passed through layers of security checks and arrived at the hotel conference hall, there were already many people sitting inside. ?Most of them are familiar faces that Chang Haonan met last time. ?However, because some people are not here yet, or the current information is not complete enough, the meeting has not officially started yet. As usual, the person sitting at the top of the list is General Zhang. At the moment, it is said to be a meeting, but in fact it is still in the internal discussion stage and does not involve the decision-making process at all. The higher-level leaders are not military professionals and have to deal with external affairs first, so it is normal for them to be unable to attend. According to the meeting guidelines, Chang Haonan and Ding Gaoheng took seats on both sides of the conference table. Comrades, chiefs and comrades, let me report the latest news. Just then, Luo Yudong, the head of the Second Department of the General Staff, who was responsible for hosting this meeting, or strictly speaking, just responsible for reporting the situation in real time, walked behind the small desk and prepared to report the latest information. ?Of course, it has only taken an hour and a half since the incident occurred, so this briefing still does not involve any real non-public information. Mainly a routine update on the situation. The venue, which had been a little noisy just now, suddenly became quiet. After experiencing the initial confusion and confusion, everyone here thought that their mentality was relatively stable at this time. ?However, it turns out that they underestimated what came next: At around 9:00 that time, another Boeing 767 attacked the South Tower (Building 2) of the Twin Towers in a similar manner. Subsequently, around 9:40, a third Boeing 757 Just saying this, Luo Yudong had to stop midway, pick up the teacup and take a sip of water. Then he gave more important news: At about 10 oclock, that is, about...15 minutes ago, Building No. 2 had completely collapsed, and the situation of Building No. 1 was also in critical condition..." The entire conference room made a sound of inhaling. Although he was not at the scene, and no reliable photos or videos have been sent back, it is not difficult to imagine this catastrophic scene even if it is only described in words. In order to appear more gregarious, Chang Haonan also symbolically expressed some shock. But in fact, he regained his inner peace. ?In addition to these three successful ones, he even knew that there was another hijacked plane that crashed early due to passenger resistance. Otherwise the matter is bigger. ?However, even the Americans themselves had not yet had time to put the crash of United Airlines Flight 93 together with the other three incidents. Just as Chang Haonan was thinking about the outcome of the discussion that would come later, Fu Youquan, who was a few seats away from him, came over at some point. Xiao Chang, please be clear with me. The latter looked around and asked in a mysterious voice: This matter has nothing to do with you, right? "ah?" Chang Haonan thought he was calm a second ago, but he was so frightened by one sentence that he almost jumped out of his chair. ??Today''s incident can be regarded as the biggest pot in the post-Cold War era. Let alone him, several others cannot bear it. So he calmed down a little and shook his head quickly: Chief, I guarantee with my dang personality that I really dont know anything about it Howhow could youhave such an idea? ??He wanted to say that he didn''t like America, but he wasn''t anti-human. Not to mention incompetent, even if he had the ability, he wouldn''t do such a cruel thing It will only make the other party more united. The six months after today will definitely be the period of strongest cohesion between the two sides since World War II. As for stepping into the quagmire and being unable to pull it out, that is simply seeking your own death. ?However, in extreme consternation, he could not express this complicated logical relationship at all. ?Hence, after a rhetorical question, although he opened his mouth, no other sound came out in the end. Fortunately, Fu Youquan didn''t really doubt Chang Haonan, but he was so shocked that his mind went wrong for a while. ?After seeing the latter''s expression as if he had seen a ghost, he also realized that there was something wrong with his thinking, so he straightened his uniform hem with some embarrassment: Sigh I was confused for a moment just pretend I didnt ask. Mainly because during the previous Allied Forces operations, Xiao Chang, your calculations were too accurate and too far-sighted. This time, I subconsciously felt..." Hearing this explanation, everyone in Chang Haonan went numb. ? He ??actually explained last time that the impact points of those bombs were not calculated in advance. In fact, since JDAM did not have the ability to glide, it was technically impossible to calculate them in advance. But apparently few people believed it. Originally, he held the principle that one more thing is worse than one less, and he thought that the matter would be over when it was over. So I didnt insist on taking myself out of it. Who would have thought that there would be a further delay in waiting... (End of this chapter) Chapter 924 Please enter the urn (10,000 per day, please give me a monthly ticket) Chapter 924 Please enter the urn (10,000 per day, please give me a monthly vote~) Fortunately, apart from Fu Youquan, no other person made such a terrifying association. At least no one else said it. This made Chang Haonan somewhat relieved. By the way, I also understood why the other party specifically asked me to participate in the meeting. It turned out that I wanted to ask such a somewhat off-topic question. ?However, it is understandable. This matter is probably something that people around the world have never dared to think about in the past. And, more importantly. ?Chang Haonan knew that the matter was over here. But others dont know. ?From the current point of time, this is a continuous wave of attacks. What if there is a fourth or fifth time? ?It is different from the simple emotional venting of the people who eat melons. ?Those who can sit in this conference room need to think about issues from all aspects. When the situation is still unclear, let alone coping, no one even knows whether they should expect or worry... The next few hours, until midnight, were calm. ?After the attack, considering that someone had tried to hit the CIA Langley headquarters with a plane in 1993, the first response of the U.S. intelligence agencies was to evacuate staff. Hence, for a long period of time, the intelligence system in the United States was almost paralyzed. As time passed, the situation finally began to improve, and more and more information about the attacks was confirmed and released. Then, the overseas agencies will gradually spread the information back to the country. Chang Haonan, who was in the capital, finally got what he wanted and saw a lot of things he had never seen in his previous life. Even, someone got a TV set and directly received the TV signal from the other side of the Pacific. What is playing on the screen is the speech given by Mr. Bush. At this point in time, even he can only get some fragmented information, so there is not much nutritious content in his speech. Not to mention the other party''s stumbling words, he was obviously more stimulated than anyone on the Chinese side. As a result, everyone''s attention quickly shifted to other places. Soon someone spoke first: Look at the background...this doesnt seem to be a white house? Thats right. Luo Yudong, still standing behind the small podium, replied: Due to air traffic control and extremely chaotic conditions, Air Force One was prohibited from returning to Washington. "So, he should be at Barksdale Air Force Base in Louisiana." Many people were surprised when they heard this position There is one of the most important components of the United States'' strategic nuclear forces. Choose the first (actually second, but no one knew it at this time) speech there after the attack, is it equivalent to some kind of hint? It was also at this time that the statement "We will respond to this" came on the TV. Although not everyone here understands English, the translation faithfully conveyed the meaning to everyone. ?This meeting is essentially a discussion. Faced with this kind of scene that had never happened before, even Mr. Zhang, who had experienced hundreds of battles in the literal sense, was a little unsure about how to steer the discussion. Facts have proved that in this kind of private setting and lack of guidance, whether it is the big leaders or the masses, they are essentially a group of ordinary people. ?Hence, the conversation quickly started to fly. From guessing the other partys next reaction to studying what kind of statement we should make. For a long time, Chang Haonan did not participate. ?Mainly because among the people at this table, he is indeed a low-key person, and it is difficult for him to take the initiative to express his position without being invited to speak. ?However, he was happy to have his leisure time. He just took out a pen and paper from his briefcase and occasionally recorded some news reported back. Ahem Finally, Mr. Zhang, who was sitting in the front seat, turned on the microphone in front of him and coughed twice. This is obviously a signal that the leader is ready to take a stand. As a result, the originally noisy venue quickly became quiet. Comrades, let me emphasize one point first. Mr. Zhangs voice seems to have become older than two years ago, but it is still firm and powerful: Public statements about this emergency and external handling are not within the scope of our military personnels responsibilities. So, the topic we discuss this time should still be limited to the military level. Now, the tone has been set. As for the discussion on the military level, it seems to be quite broad in scope. But to sum it up, it is actually a question - The "response" Mr. Bush said on TV a few hours ago, did it include the means of war? Opinions quickly divided into two completely opposite groups. ?Some people feel that the other party may just pay lip service and may not actually use force on a large scale. Its not that these people think the United States loves peace. It is mainly a matter of concept. In 2001, there was no concept of the so-called war on terror. So, although everyone agrees, this incident must be quite irritating to Americans. But in the minds of many people. To talk about starting a war... Seems to require a clear goal. But other people are **** for tat, saying that the impact of this wave is comparable to the attack on Pearl Harbor. In this case, the target is no longer important. Even if you are searching for enemies in the air, you still have to find someone unlucky to take the blame. Otherwise, where can the American people vent their anger? During the back-and-forth argument, Qiao Chenqing, who was in charge of the Air Force, was sitting next to Chang Haonan and moved closer to Chang Haonan and asked in a low voice: Comrade Haonan, you just... seem to have never spoken, right? ??The current commander of the Air Force on paper is still Liu Yaoshun, who has met Chang Haonan several times before, but his physical condition no longer allows for high-intensity work. Hence, Qiao Chenqing is mainly responsible for daily affairs. Facing this problem, Chang Haonan said in his heart that I actually said it before you came to the venue, but the content was enough to scare someone to death... ?Of course, this means saying it in your heart. On the surface, he still nodded and expressed his stance immediately: I dont have many opportunities to listen to the speeches of the chiefs. I still need to study more. Actually, Chang Haonan was planning to say something on the way over. But I really didnt expect that the person in charge of the Second General Staff Office would stand directly on the stage. This situation is a bit complicated. You should know that the Second Division itself is responsible for intelligence collection. Chang Haonans speech will inevitably involve a considerable amount of information from the West Asia region. Some of them were brought back by Lao Wu, and some were things he already knew about, but he still wanted to put them on Lao Wus head. ??No matter what, it is always a troublesome thing to talk about foreign intelligence in front of the head of the intelligence agency ??If the other party has already reported the same content, it would be Chang Haonan himself who is embarrassed. ? And if not, it is tantamount to pointing at the nose and saying that others are not doing their job properly. The working relationship in the future will not be good. That''s why Chang Haonan never found a chance to speak. ?However, at this moment, Mr. Zhang looked at the clock that was already pointing to midnight and announced that the meeting would be adjourned temporarily. Then, while most people got up and went to rest, he waved to Chang Haonan. Soon, Fu Youquan, Chang Haonan, and Qiao Chenqing sat next to each other. Comrade Youquan. Lao Zhang fiddled with the tea leaves floating on the water with the lid of the cup and said in a half-joking tone: At the meeting last night, you specifically applied and said you wanted to call Comrade Chang Haonan to attend the meeting, but Xiao Chang came over and remained silent. Isnt this... inappropriate? It was naturally impossible for Fu Youquan to admit that he was out of his mind at the time and suspected that the matter was related to Chang Haonan, so he called him over. But I couldnt think of any other explanation for a while. ?As a result, the atmosphere fell into a slightly stiff stalemate. In this situation, Chang Haonan naturally needs to take the initiative to rescue the leader: Chief, what Mr. Fu wants me to do is to learn something and gain insights. Even if I speak, its just to make suggestions, so I was mainly listening just now. After finishing speaking, he opened the notebook next to him. ??It is indeed filled with several pages of content. ?However, Mr. Zhang just chuckled after hearing this explanation: Xiao Chang, if I hadnt met you the year before last, this explanation would be justifiable. He put the tea cup back on the table and changed the subject: In the situation just now, it might be inconvenient for you to express your position rashly. However, there is no need to be so modest now, lets talk about your views. This is the time Chang Haonan was waiting for As the only person present who does not have a military rank, it is actually more appropriate for him to say some words. Mr. Zhang, I think this battle will definitely happen. Hearing this judgment, Mr. Zhang did not make any obvious statement. He just nodded slightly and motioned for Chang Haonan to continue. "On the one hand, the greatest psychological reliance of Americans in the world lies in their belief in the absolute security of their homeland. Although the threat of intercontinental nuclear missiles has been rumoured for decades, it has never been realized, and there is a lack of actual feelings. Even World War II did not have any serious impact on North America. So, this time, this is actually the first time in more than a hundred years that Americans have been beaten on their doorstep, and it is impossible to endure it no matter what. On the other hand, after the 1999 incident, the military myth that the US military finally established through the Gulf War has once again been loosened, so they urgently need an opportunity to reassert their strength to the world. Even though two years have passed, Zhang Laoyuan still had a happy expression on his face when talking about the Allied operations. For those who knew about it, that time was really a relief. ?Of course, in his position, he could not express his opinions casually on Chang Haonan''s opinions, so he just nodded, unable to tell whether he agreed with this judgment. After a while, Mr. Zhang spoke again: "So... do you think we should try again the response to the Allied Forces Operation?" No, or...completely the opposite. ?Chang Haonan took a deep breath, and then said decisively: I personally think that this time, we should go all out to support the Americans! (End of this chapter) Chapter 925 Restart the denuclearization of Ermao Chapter 925 Restarting Ermao Denuclearization Hearing this, even Mr. Zhang could not continue to maintain the image of an old monk in meditation. He suddenly raised his head, with a serious expression, staring at Chang Haonan with a pair of tiger eyes. As a veteran soldier who fought in the Anti-Japanese War and fought back in self-defense, even though he is over seventy years old, the sense of oppression exuded by long-term battles has not been weakened by half. It wasnt until Chang Haonan felt a little hairy that the other party finally spoke: Your idea surprises me a bit. As he said this sentence, Mr. Zhangs expression changed back to the one without sadness or joy before: I thought that after the success last time in the Western Balkans you would become path dependent on that approach The content of what he said seemed a bit like a joke, but there wasn''t much of a joke in his tone. Chief, are you testing me? ?Chang Haonan directly opened the skylight and answered frankly: Although the background of these two incidents is related to the Americans, or the US military, the actual situation is completely different. When the Allies took action, the other side used force and bullying to illegally invade, and they also wanted to trick their European allies. By the time the EU reacted, the situation was already out of their control. "At this time, the whole world is happy to see us secretly working to change the situation. Most countries don''t care at all about who is behind the scenes, so until now, quite a few people believe that it is the Russians. The ghost. Hearing what Chang Haonan said, Qiao Chenqing next to him couldn''t help but smile. ??Although he did not participate in that meeting, when he took over the position of air force commander some time ago, he also learned about the entire decision-making process from his old partner Liu Yaoshun. Compared with what others had known for a long time, it was still a little less settled, so I didnt hold it back. ?But then again, it may not be a bad thing for the Russians to bear this blame. Because this helped them recognize the reality from the side and avoid policy swings in the critical years at the turn of the century. In 2014, the script was staged ahead of schedule. Of course, Chang Haonan, who was highly tense at this time, did not notice what was happening around him. Instead, he quickly organized language in his brain and continued the topic just now: But at the moment, it is the United States that is being attacked first, and this is an indiscriminate attack that mainly targets civilians. At this juncture, it is not appropriate to stand on their opposite side. Is this the only reason? Lao Zhang asked while turning the tea cup on the table with one hand. Obviously, he thinks that just getting here is not enough to justify it. I have to say that although he has only met Chang Haonan twice, Mr. Zhang has almost figured out the former''s routine. At this time, Chang Haonan no longer needs to hide anything. Instead, he needs to provide enough persuasion to pave the way for a big plan behind him. Therefore, after a short pause, he told the whole story: Moreover, two points can be seen from past historical experience. First, if you support these organizations that use terrorist means to achieve their goals, you will be counterattacked sooner or later, so you should avoid standing with them in any form. "Second, this area of ??West Asia and North Africa, especially West Asia, has been a quagmire that is easy to get in and difficult to get out of since ancient times. The Americans withdrew quickly last time so they were not trapped in it, but they cannot be like that every time. Good luck. Compared with the thin rhetoric at the beginning, these two reasons are obviously much richer. At least there was some satisfaction in Mr. Zhangs eyes The first point goes without saying. ?Shortly before the adjournment, the intelligence agency on the other side of the ocean had made public its preliminary investigation results and pinned the mastermind of the attack on a certain bearded leader of Al Qaeda. This leader is the leader of the resistance force that Americans personally trained and supported more than ten years ago. If we push the timeline forward a little further, then the birthplace of modern international terrorism is the Kingdom of David. ?? And they also got their own boomerang in Munich in 1972. The key lies in the second article. So Xiao Chang, do you think the flashpoint of the next conflict will be Aiwuhan... or the surrounding areas? This time, it was not Mr. Zhang who asked the question. But Fu Youquan. At first, he breathed a sigh of relief because Chang Haonan took the initiative to help him out. ??As a result, before he could even take a breath, he heard the other party''s judgment that "a war will begin." Combined with the subsequent rounds of questions and answers, although Chang Haonan did not say it explicitly, it is not difficult to hear that he was hinting at the country of Aiwuhan both inside and outside his words. After all, this is where Mr. Bin Laden made his fortune. As a result, the heart that had just been put down became suspended again. You know, Aiwuhan and Huaxia are serious neighboring countries. Although the distance seems very far at first glance, if you zoom in on the map, you will find that the two sides are connected by a narrow strip of about 300 kilometers long and less than 100 kilometers wide - the Wakhan Corridor. ?This involves very complex national, historical and diplomatic issues, but in short, if chaos breaks out in Aiwuhan, it will not be good news for China. The trouble is, if Aiwuhan doesnt become chaotic, it may not be a good thing either... Highlight a dilemma. Hence, after Mr. Zhangs question came to an end, he asked almost immediately. ??If another non-professional staff member gave this judgment, Fu Youquan would most likely just listen casually and choose to wait and see. But many things in the past have shown that Chang Haonan has a very keen sense in intelligence analysis. He should not be treated as an ordinary non-military personnel. Mr. Fu, its not just Ai Wuhan. ?Chang Haonan adjusted his sitting posture and turned slightly sideways to face Fu Youquan: "Some businessmen from our country who are doing business in the Middle East have reported that as early as last year, Americans began to grant official posts to some tribal leaders in the Mesopotamia and Mesopotamia. It would be okay if it was only once or twice, but it would be done for a long time and on a large scale. , there is a high probability that you really want to change the world! This news is a complete surprise brought back by Lao Wu. Even Chang Haonan had no idea about it before. Let alone others. "But that side should have nothing to do with this attack..." Fu Youquans subconscious words were only halfway through his words when he was denied by himself: No, if the Americans want to go to war, its normal to have no reason to forcefully find a reason. These should be two independent events..." At the beginning of the 21st century, China''s intelligence system was basically at its lowest point in terms of information source construction, and it was difficult to even collect public information from abroad. But as an older soldier who has experienced war, his ability to analyze and judge is still online. Hence, Fu Youquan quickly realized that yesterdays attack was an unexpected situation and was not part of the Americans plan. Even if there is no such emergency, the other side will choose the opportunity to attack the two river basins in order to re-establish sufficient military deterrence around the world. After hesitating for a while, he turned to look at Mr. Zhang who was sitting in the front seat: "Mr. Zhang, should we consider... putting the Jincheng Military Region on alert?" If two conflicts really start in the Middle East at the same time, it means that a considerable number of US military units will be deployed around our country, at least for a long time in the future. "Although the terrain over there is not suitable for large-scale mechanized units to pass through, no matter what... we have to guard against it..." The General Staff itself does not have the authority to mobilize troops. Major tasks such as moving to alert at the theater level must be reported to higher-level leaders through Mr. Zhang. Actually, Chang Haonan was planning to directly propose his final plan after this topic was over. But he was interrupted by Fu Youquan. ?The other partys conversation involved military command authority, so Chang Haonan immediately chose to shut up. He is very clear about what topics he can participate in and what topics he cannot participate in. Theres no need to make such a big fuss. Lao Zhang waved his hand: "However, I will report to the commander later to ask the border defense and special operations-related forces of the Jincheng Military Region to increase their alertness to prevent the chaos from having a direct impact on our country." After briefly responding to Fu Youquans suggestion, he turned his attention to Chang Haonan again: It seems that Xiao Chang still has something to say, please continue. "good." Chang Haonan nodded upon seeing this. ?Now that the previous steps have been completed, there is no need to make any more detours: "For the current Americans, their previous layout in the two river basins cannot be directly used on Aiwuhan because they are separated by Persia. However, military operations against the latter are imminent, and the divisions are out Well-known, they are unlikely to pass up the opportunity." And if you want to project power to Aiwuhan in a short period of time, land and sea transportation are almost impossible, and there are only two-way air channels. One goes through us and the other goes through Central Asia? ??Although there was no map here, Qiao Chenqing, who was born in the Air Force, immediately realized the answer. To be precise, the Collective Security Treaty Organization. Chang Haonan replied: "There is a high probability that the Russians will give a favor and allow the US military to project troops through the airspace of the CSTO member states. After all, even if they do not allow it, the five Central Asian countries may not listen. On the contrary, it will affect the prestige of the CSTO big brother. " "For us, it is of course impossible to allow US military combat forces to set foot on the country, but if the other party is willing to accept some reasonable prices, then we can open several airports for logistics and civilian supplies that do not involve weapons and equipment. Transit "etc" Lao Zhang stretched out his hand and interrupted Chang Haonan''s words. At the same time, his expression turned solemn: Whether this is feasible or not, we will not make a judgment yet. You just need to tell me what conditions you want to get from the Americans. With these words, Chang Haonan was completely relieved. In fact, he was not worried about whether his suggestion would be agreed to Judging from the situation in the previous life, Chinas bottom line is that it cannot open the Wakhan Corridor as a land passage. However, air transit was later liberalized. ?Of course, it appears to be a commercial transportation route. So, the key lies in that condition. ?With such a once-in-a-lifetime opportunity, it would be a pity if it was just to earn some airport usage fees like in the previous life. I think we can cooperate with the Russians and use this opportunity to get the Americans to agree to restart the denuclearization negotiations between the two countries. ?Chang Haonan sat up straight, leaning his upper body slightly forward, pressing on the table of the conference table: And lets get involved too. (End of this chapter) Chapter 926 You said you didnt prepare in advance? Chapter 926: You still said you were not prepared in advance? ?This idea proposed by Chang Haonan is a little jumpy. Due to complex historical and practical reasons, China generally does not participate in nuclear disarmament or nuclear arms control negotiations. Dont ask, just ask to support global denuclearization. But you really want me to destroy nuclear weapons? ?Then I''m sorry and I have to say goodbye. ?Even if there is really no way to force participation, it is just a formality. It is rare to take the initiative and rush to get things done. Affected by this inertia, although the nuclear disarmament issue of Ermao is an exception among special cases, China only participated in the formulation and approval of relevant resolutions at the Security Council level and did not directly participate in the negotiations. Hence, the three people around him couldn''t figure out Chang Haonan''s brain circuit at the first time. Having said this, the latter naturally goes straight to the point: As far as I know, there are still 19 Tu-160 bombers that were obtained when the alliance disintegrated in the Priluki Air Force Base in Ermao. According to the agreement reached in 1994, these nuclear-related equipment should be destroyed like those intercontinental missiles, but Russia has always hoped to obtain 8 of them to repay the debts that Ermao has owed in the energy field over the years. There was nothing wrong with this matter originally, but because of the incident in 1999, the two parties who had already reached a consensus started arguing again. They have been arguing until now, and they have not come up with a new solution..." This is completely clear. So when you said that you were cooperating with the Russians, you wanted to increase the number of these aircraft to five and divide them directly? Lao Zhangs expression and behavior were still the same as usual, but the speed of speaking this sentence was much faster than usual. Obviously, his heart is not as peaceful as it appears. Figure 160 This supersonic strategic bomber with a variable swept wing design belongs to a special technical route formed in a special period. Not to mention that China is still unable to design and build such a nearly 300-ton aircraft. Even if it could, it would be impossible to start from scratch in the 21st century and invest huge resources in developing such a thing. Times have changed. But if it cannot be researched and developed, it cannot be researched and developed. ??If you can find a few ready-made products at a lower price and use them, it will still be really delicious. In addition, in the process of using and maintaining these aircraft, you can also gain some experience in the design and manufacturing of large aircraft. Absolutely great value. ? As a 71-year-old comrade, Fu Youquan stayed up until midnight last night and was already a little drowsy. After hearing Chang Haonans words, he immediately became energetic: Theres somethingXiao Chang may not know. ?He said slowly: Those Figures 160, in fact, as early as 1994, we considered paying a sum of money to buy them back, and even sent people to inspect them. As a result, the news leaked at a critical moment, and the two opposite countries jointly suppressed it..." Although he was talking about the difficulties he faced in the past, judging from the excitement shown by Fu Youquan, it was most likely that he mentioned this topic just because he was in great shock and worried that his joy would be in vain. Its not that I really think its not feasible. Chang Haonan has already seen through this: Mr. Fu, the past was before, and the present is now. In 1994, senior officials in Moscow wanted to wear a pair of trousers with the Americans. How can our diplomatic environment compare with what it is now? "Right now, these 19 aircraft are a hot potato for Ermao. They have to pay for maintenance from time to time. They want to get rid of them as soon as possible. However, the Russians have already broken down the talks alone, and they also need a third party as an introduction to restart the negotiations. As for the Americans, ?Chang Haonan paused for a moment and smiled slightly: "With all due respect, Mr. Bush is not as good as his father in terms of intelligence. Now he is most likely thinking about how to break into Aiwuhan quickly to restore his approval rating. As long as we relax on the route issue , they wont die over this kind of thing..." "In short, this is a four-win ending where you are good, I am good, and everyone is good..." "Um" ?Originally, Fu Youquan just wanted to find a way to convince himself. The reasons provided by Chang Haonan are obviously sufficient. As for Qiao Chenqing As the supreme commander of the Air Force, he is naturally happy in his heart. After all, if this thing can really happen, the one who will benefit the most is the Air Force After the retirement of the Tu-4 bombers in 1988, the Chinese Air Force completely lost its ability to carry out strategic missions. H-6A/D/M three models, the range is simply not enough to deter the main opponents. Not even Guam. Moreover, since it has never been equipped with practical nuclear weapons carrier aircraft, the aviation force also lost all nuclear-related positions after undertaking the first few nuclear tests. In other words, the diversity of combat missions carried out by the Chinese Air Force has always been lacking in terms of China''s status as a major power. ?However, the more critical this situation is, the more important it is to understand how to make a fortune silently. So, although Qiao Chenqing has already planned the new bomber regiment in his mind, on the surface it is still as stable as before...as stable as Mount Tai: Mr. Zhang, regarding this matter...should we first seek consultation from relevant experts in international relations? After all, the Russians paid off their debts in name only, and if we paid directly to buy it, would it be possible to trigger relevant arms sales restrictions? Actually, this question is not important What a laugh, what are the arms sales restrictions? As long as the three permanent members nod their heads, who will limit it? ?However, even for this kind of detail, Chang Haonan has already considered it: Chief, we can also do the same as the Russians, in the name of debt repayment. He said as he picked up his briefcase and took out a contract: When we introduced the full production line and technology of the Tu334 passenger aircraft before, we stipulated that some core components of the D436 engine would be supplied by Ermaos Motor Sich Group, and Ivchenko-Progress Design Bureau would be responsible for the technology transfer. But since last year, problems with Ermao have hindered the progress of supply and technology transfer. For this reason, the entire C808 passenger aircraft project has been delayed for nearly a year. This transaction is guaranteed by Ermao officials. Now that neither company can afford the liquidated damages, the debt will naturally fall on Kievs head..." Three inhaling sounds sounded from beside Chang Haonan almost at the same time. ?Chang Haonan actually has the rest of the words left to say. Even Ermao can of course choose to deny it. ??Moreover, if it were left for more than ten years, it might really be a default. ?However, in 2001, the other party''s senior management was relatively normal, and it was impossible to completely ruin the business relationship with China just because of this matter. ?Of course, for the other three people, it no longer matters whether there is this passage or not. Comrade Haonan, this matter is so important that I alone...cant make a decision. Lao Zhangs address to Chang Haonan also became more formal: So, now you need to write a formal report to me, and I will explain the situation to the superior leaders to see if I can approve your plan. "The time window is very narrow, so I won''t say any polite words. You have to act quickly. It is best to complete it before this evening." Chang Haonan, however, showed no panic: Chief, I have prepared all the relevant information here. I just need to find a place to sort it out. If everything goes well, it will be handed over to you before dawn. Hearing this assurance, Mr. Zhangs eyes lit up: Then let the comrade in charge of conference affairs arrange a room here, and have computers and other equipment ready for you. If this thing can be done, I will personally take credit from you! "yes!" ?Chang Haonan immediately stood up and stood at attention. After packing up his belongings, Chang Haonan and two other people left the conference room under the guidance of the conference staff. ?The moment the door closed behind him, Chang Haonan was held back by Fu Youquan as he was about to take a step forward. Mr. Fu? Chang Haonan turned around. Fu Youquan''s lips moved slightly, but he made no sound. But there is a question clearly written in the complicated eyes ???You also said that you were not prepared in advance? But in the end, maybe I really dont know how to ask. Perhaps he simply believed it was a coincidence. In short, he waved his hand towards Chang Haonan: Forget it, go and do your work (End of this chapter) Chapter 927 Behind the scenes and in front of the stage Chapter 927 Behind the scenes and in front of the stage Just as Chang Haonan promised Mr. Zhang, it took him less than three hours to sort out the report. ?According to what Lao Wu found out last year, among the 19 Tu-160s, it is clear that they can still fly, but in fact only 10 are left. ?Of course, these 10 can fly. Weapon systems and the like, there is no guarantee what the situation will be. After all, Ermao has long since run out of Kh55 cruise missiles and cannot conduct combat tests at all. ?As for the remaining 9 aircraft, dismantle them and put together the good parts together, and you can probably barely build 2-3 aircraft. ?This is something made during the Soviet period. The degree of standardization and quality level are acceptable, and they still dare to play like this. ??If the aircraft was built in the years after it was dismantled, it is not clear whether it can still fly after parts are replaced like this. Excluding the 8 Russians who have already occupied pit positions in advance. So under the most optimistic scenario, there are still 5 aircraft left for China. ?Of course, based on Lao Wus experience, listening to the people on Ermaos side has to be somewhat discounted, so its already good to get 4 of them steadily. As for the delayed supply of Motorsic and the relevant evidence and written documents of the deposit owed by Ermao officials, they are directly stored in the archives of the Aviation Power Group. It can be said that after several years of planning by Chang Haonan, everything is ready in terms of hardware conditions. What is really lacking is the opportunity to enter the game and the determination of the superiors. Now, the opportunity is in front of you. Chang Haonan''s report is intended to help superiors make up their minds. After submitting the report, Chang Haonan finally got some time to catch up on his sleep in the room. When he woke up again, it was already the afternoon of September 12th. After finishing washing up as quickly as possible, he turned on the TV in the room. ?There is no dedicated news channel these days, so if he wants to watch news, he can only switch to CCTV. As expected, the situation is almost the same as in the previous life. After a delay of about ten hours, the domestic public media has also begun to report on yesterday''s attack on a large scale. Then, he looked at the situation of sets 4 and 7. The content is basically the same. ??Except for Mr. Bushs speech last night, Eastern Time (EST), that is, this morning, Beijing time, there was a formulaic rhetoric condemning indiscriminate attacks and sending greetings to the victims. ? Even after changing the channel, it can be seamlessly connected to the previous program. Obviously, this was drafted from above. At the beginning of the 21st century, the response to news programs was generally slow and the broadcast format was a bit monotonous. ?Although later programs that invite several guests to the studio for live discussion have appeared, they are not very popular. Of course, being slow also has its advantages. ??For an event of major impact like yesterday, broadcasting must be disciplined to avoid irreparable adverse effects at critical moments. ??Moreover, slow publishing of news also gives the editorial department more time to cross-verify the news itself. ?Just like in the following years, the speed of news transmission is getting faster and faster, but various media will do anything to grab the first release, and some even do not verify the authenticity of the news... It is difficult to say that it is completely an improvement. Unfortunately, due to the special nature of the Jingxi Hotel, it has not yet been connected to the Internet, so Chang Haonan was unable to see the reaction of the melon-eaters to this matter. It is foreseeable that the overall tendency should not be much different. However, considering that after the head-on confrontation in early 1996, the conflicts between the two sides have occurred on a non-public level, especially since there are no "two major hatreds" at the turn of the century, so they may not behave like the above. I was so obvious. Chang Haonan still remembers that when he and a few friends heard the news for the first time in his previous life, it was a complete surprise. ?Just like that, he stared at the TV screen and sat in trance for a long time. Until a doorbell awoke him from his thoughts. ?Chang Haonan quickly straightened the shirt he was wearing, and then opened the door. ?As expected, standing outside the door were Fu Youquan and Ding Gaoheng. Mr. Fu, Director Ding. Chang Haonan said as he took off his suit jacket from the hanger by the door, then followed the two of them out of the room while getting dressed. This morning, the chief personally presided over an enlarged meeting. Fu Youquan walked half a step in front of Chang Haonan and introduced to him what happened in the past few hours: "Your previous guess was correct. When the White House communicated with us, they said that they had identified the mastermind of this attack and confirmed that he was in Aiwuhan." The other party very...frankly stated that if Aiwuhan refuses to hand over the relevant persons responsible, then they will consider launching a military operation for the purpose of counter-terrorism. We hope that we can understand and support it. Chang Haonan was able to get a position in that discussion yesterday because Fu Youquan specifically named him. However, no matter how much we expanded the meeting in the morning, it could not reach the former level. So, I can only hear two pieces of news. Fortunately, Fu Youquan was born in the military and has served as a staff officer for a long time. He has received special training in relaying key contents, so there is no need to worry about information distortion in the process. Has the other side made a public statement? ?Chang Haonan recalled that there seemed to be no relevant content mentioned in the TV news just now. "not yet." Fu Youquan shook his head: This is what the other partys leader informed us over the phone. However, in order to calm public anger, I estimate that the press conference will be held soon, and the content will be nothing more than this. Then our response Chang Haonan asked tentatively. The phone call was made early this morning, so we didnt make a clear statement right away, but during the meeting just now, several leaders agreed in principle to your suggestion. Fu Youquans face showed relief: "Of course, if you want to implement your idea, you still need to determine some details, such as whether allowing US military aircraft, even transport planes, to land at our airport will cause public opinion risks, and how to technically deploy the C17 Providing protection for models we have never come across is also a problem that needs to be solved. ?Although it is said that it is difficult, everyone in the know understands that when a plan starts to consider these minute details, it means that it is about to be implemented. So, this is definitely good news. After a slight pause, Fu Youquan continued: "In addition, it is similar to your estimate. The CSTO has also unanimously passed the decision to allow non-combat units of the US military to use the airspace and airports in Central Asia. It is expected that this afternoon, the chief will communicate with the Kremlin for the second time. We will call them to discuss the issue of denuclearization with them in detail..." Obviously, the meeting in the morning was quite informative. Even if Fu Youquan only focused on the key points, he could not finish his words until he walked out of the gate of Jingxi Hotel and came to the parking lot. ?Standing next to the car, Fu Youquan raised his hand and looked at his watch: In the afternoon, I will have a staff meeting with the Jincheng Military Region, so I wont send you off any more. ?So the three of them said goodbye. A few minutes later, the minibus started moving steadily. ?But this time, only Chang Haonan and Ding Gaoheng were sitting on it. Director Ding, after yesterdays meeting, Mr. Zhang suddenly asked me to stay, so I didnt have time to talk to you about some things According to normal circumstances, the suggestions put forward by Chang Haonan should first go through Ding Gaoheng and then be reported upwards step by step. Just like the time before last year. In fact, this time, Chang Haonan originally planned to follow this process - ?According to his previous estimate, it would take three to five days from the time the incident occurred until he found the opportunity to join the decision-making process. It was enough for him to submit a formal written material to Ding Gaoheng. ?As a result, Fu Youquan and General Zhang made a seamless surprise attack. After the incident, they took him directly from the conference room of the Science and Technology Commission to the conference room of the Jingxi Hotel. There was no chance to explain the situation to Ding Gaoheng. It is only a matter of urgency to obey authority. ?However, now that the dust has settled, Chang Haonan, as a subordinate of the other party, should explain his feelings and reasons. ?But before he could finish speaking, Ding Gaoheng raised his hand in the air, indicating that he did not need to continue speaking: Lao Fu has already told me what happened after yesterdays meeting. "You know, I may be transferred to other positions in a while." "So, even if you are not invited to the Jingxi Hotel this time, but hand over the report to me as usual, I should directly connect you with Lao Fu, and then I will submit it myself..." Ding Gaoheng said this and did not continue. But Chang Haonan still heard the meaning of the other partys words With the increasing role of oneself and the explosive growth of information diffusion rate, it has become difficult to continue to cover ones identity as in the past. ?In addition, Ding Gaoheng himself will leave the Science and Technology Commission system in at most a year and a half. ??No matter which one of the three current deputy directors the new leader is, he does not have a military position. Even the Science and Technology Commission itself is gradually downplaying its militarized nature. As a result, the channels for communicating with the military system through superiors will soon be closed. So, for Chang Haonan. Its time to move from behind the scenes to the front of the stage. (End of this chapter) Chapter 928 “Enduring freedom” Chapter 928 Enduring Freedom One day later. On the morning of September 13th, Beijing time, the US held its first official press conference in response to the attack two days ago, and for the first time directly disclosed the internal investigation report of the intelligence department. Compared to the previous life, it is about 12 hours earlier. The results of the investigation naturally pointed directly at Al Qaeda and Aiwuhan, who provided shelter to its leader. President Bush also gave a very tough and meaningful speech earlier, saying that "our military is extremely powerful and ready to go" and "law enforcement agencies will do their best to bring the murderers to justice" and so on. ?At the time of this press conference, Chang Haonan was in the Aerospace Power Groups own office, flipping through a meeting document recorded in both Chinese and French Lin Zuoming brought it back from France. The two are currently discussing the specific research and development plan of the "Falcon Z" business jet project. ??The latter was waiting for Chang Haonan to read the memo of the meeting. He was really bored, so he turned on the TV in the corner of the office. There happened to be voices reporting on the press conference. The content mentioned in the news is almost the same as what Fu Youquan revealed the day before. So, Chang Haonan actually didnt pay much attention to this. But for Lin Zuoming, who had just returned to China and was even worried about it for more than ten hours on the plane, the feeling was quite fresh. I said to Mr. Chang, from the beginning until now, its only a matter of time ?He raised his hand and looked at his watch, and then continued: In just about 40 hours, they were able to produce such a detailed investigation report? 40 hours is not short. Chang Haonan happened to have a headache due to the dense characters in the meeting minutes, so he raised his head and prepared to change to a lighter topic and take a rest: Think about it, if something like this suddenly happened, the whole country would be extremely panicked, and even the U.S. stock market and the U.S. dollar exchange rate would plummet. Whether it is to appease public sentiment or boost investment confidence, we must make a statement as quickly as possible. It is the evening of the 13th local time now. If it is delayed until the exchange opens tomorrow morning, the loss will be even greater. ?In Chang Haonans impression, after such an unprecedented disaster, thanks to its relatively quick and decisive handling, the Xiang Partys support rate even increased a lot. It shows that at least at the domestic level, the coping strategy of small bushes is still OK. But can such a big case really be investigated in less than two days? ?Lin Zuoming obviously still doesnt believe it: Before I returned to China, I heard a lot of people in France saying that they suspected that Americans directed and acted this time. I didnt really believe it at first, but this..." It doesnt feel like its completely impossible ??For this attack, he was a complete outsider, so he had no special access to information. ?The advantage is that you can make random guesses without any psychological burden, just like the people who eat melons. But Chang Haonan can''t. On the one hand, when things have developed to this extent, it is no longer important whether the evidence is true or false. He shook his head and replied: The key is to find someone or a force that everyone can agree with to take the blame to quell public anger. Furthermore, as far as my personal judgment is concerned, these things should and are true. Hearing Chang Haonan''s categorical judgment, Lin Zuoming''s thoughts obviously began to waver. But not much. Then why didnt they advance... The latter did not finish the question, but the meaning is actually very obvious - What did you do earlier? "How should I put it...the sources of intelligence information are too complex. We receive a large amount of contradictory or even self-contradictory content at any time. It is indeed a bit too complicated to make accurate judgments in advance." ?Chang Haonan picked up the memo again and said while turning the pages: However, now that things have happened, it will definitely be much easier to look back and find relevant evidence from the perspective of hindsight. "Take the topic I am researching as an example. This is equivalent to a data dimensionality reduction process, and it directly reduces high-dimensional data into two dimensions. It cannot be directly analyzed by computers, but can only be analyzed with the naked eye and the human brain. You can all find patterns Lin Zuoming had an unbearable expression on his face, thinking to himself that it would be better not to give this example if you gave it, but it would not be easy to offend Chang Haonan. As a result, he got stuck for a while and didn''t know from what angle to continue the topic. Go down. Fortunately, Chang Haonan has returned his attention to the document in front of him: Mr. Lin. ?After about ten minutes, Chang Haonan, who finally read the last page, raised his head again: I dont have any opinion on most of the content of the meeting, its just... Chang Haonan said as he turned the document back to the front and pointed to the content on a certain page: In addition to sharing the engine development work with Snecma, I hope that we can also be responsible for the research and development of the engine nacelle. Lin Zuoming took it and looked at it repeatedly, then nodded: I will raise this request with the other three partners at the next R&D meeting. "but" ?He touched his chin and hesitated for a moment, but quickly spoke again: "Mr. Chang, the engine integrated nacelle should be part of the aircraft design... This time we are cooperating with the French, but there is no participation from the aviation industry... Or are you planning to do it yourself..." Because the divisions were originally based on business, Chang Haonan is the only one in the entire aerospace power group who has experience in overall aircraft design. Its not really in person Chang Haonan waved his hand: I have two good seedlings in my laboratory, and Im going to find an opportunity to give them some exercise. Hearing this sentence, Lin Zuoming''s eyes widened: "this" ?What he originally wanted to say was, was it too bold to let students directly work on such a high-stakes project? ?However, a word was stuck in my throat and I couldnt ask it out Logically speaking, it is indeed a bit inappropriate to ask this question in front of Chang Haonan, who participated in the 83rd Project during his undergraduate studies. ??But from a rational perspective, Lin Zuoming feels that it is unlikely that a second Chang Haonan will appear. Dont worry, Mr. Lin. Chang Haonan can naturally see what the other party is worried about: Although I will not personally preside over the design, but after all, they are students with my name on them, and they will definitely be strictly controlled..." In fact, Wang Jie and Qin Haiyang, the new doctoral students he recruited this year, are both majoring in mechanics. ?However, in 2001, the field of aerodynamic optimization focused on key areas such as the wings and fuselage, and there was no time to pay attention to such trivial details as the engine pod. So the focus of pod design is to reduce weight and resistance as much as possible while ensuring that the strength reaches the standard, and it is best to achieve some noise reduction and noise reduction functions. ?These are exactly related to the research directions of Wang and Tan. "well" Seeing that Chang Haonan had made it clear that he would tell the truth, Lin Zuoming''s worries were relieved a lot, and he sighed quietly: Your schools attitude towards students is really enviable I heard that Academician Du recommended you, Mr. Chang, to the August 3rd Project in the same way. Looking at Lin Zuoming, who was a bit emo, Chang Haonan could only respond with a joke: Mr. Lin, my enrollment quota for next year has not been decided yet. If you are interested, I actually dont mind recruiting an older doctoral student..." ?Lin Zuoming hadn''t turned around at first, and it took him about half a second to realize that the "older doctoral student" the other party was referring to was him: You still want to take advantage of me... From now on, we can each discuss our own issues. I will continue to call you Mr. Lin, and you will call me Teacher "Go! Go! Go" For a time, the office was filled with happy air... The plot of the next half month is almost exactly what Chang Haonan expected. In other words, because the United States in this timeline is even more impatient to prove its military strength again, all aspects of action are even faster than in the previous life. Three days after formally identifying the attackers and issuing an ultimatum, Defense Secretary Donald Rumsfeld officially announced on September 27 that because Eihan refused to hand over the suspect who planned the attack, the U.S. military would launch a " Infinite Justice" to combat the forces of terrorism and their patrons. On September 20, in order to avoid religiously sensitive terms, the code name of the operation was changed to "Operation Veritas", but almost at the same time when the news was disclosed, it was finally confirmed as Operation "Enduring Freedom." On the same day, the United States reached a secret agreement with China and the Collective Security Treaty Organization to use five specific airports in Central and East Asia to transport personnel and logistics materials that do not involve combat equipment for Operation Enduring Freedom. In exchange, the former will make concessions in a number of areas including nuclear arms control, development of maritime rights and interests, and high-end technological cooperation. Four days later, on September 24, the Security Council approved the authorization for Operation Enduring Freedom. At the same time, the first batch of logistics supplies began to be transferred from the United States and European countries to the five previously arranged airports... Finally, after a week of intense preparation. October 2, 2001. 5 days earlier than in the previous life. With the first F15E dropping two GBU16 laser-guided bombs on a military camp near Kabul, Operation "Enduring Freedom" finally officially kicked off. (End of this chapter) Chapter 929 Chang Jiayao’s classmate Chapter 929 Chang Jiayaos classmates For most people, Operation Enduring Freedom is only the beginning. ?No one knows where Americans will go next. However, for Chang Haonan...it''s the opposite. When he saw on the news that a C130 transport plane full of Marines took off from Hanabat Base in Uzbekistan and finally landed at Bagram Air Force Base in Aiukhan, his heart was filled with worry. fell. It is easy for ground units to drive in. But it would be difficult to withdraw. Of course, for the melon-eating people in 2001 and the People''s Liberation Army, the sudden emergence of multiple US military bases around China did not seem to be a good phenomenon. Including Chang Haonan also heard some news. For example, the border defense units located in the west and northwest of the country have been put on alert. As well as the 12 latest batch of improved J-8Cs that will be delivered by the end of the year, the planned deployment location has also been changed from the original 132nd Regiment of the 44th Air Division of the Yangcheng Military Region to the 109th Regiment of the 37th Aircraft Division of the Jincheng Military Region. The latter news even came up when Chang Jiayao went to Chang Haonan''s house for dinner one day during a break. The latters first reaction after hearing this was that he almost laughed ??This unlucky 132nd Regiment of the 44th Division, in its previous life, until the regiment was changed into a brigade and became the 132nd Southern Theater Aviation Brigade, it was still flying pitifully with the J-7B/H that had been passed through countless hands. ??And on this timeline, thanks to the early increase in China''s military aircraft production capacity, it is about to take over and call the shots. As a result, such a thing has happened again... Considering that the production capacity of Factory 112 has gradually begun to shift to J-11B and J-11BS, the priority deployment direction of heavy-duty aircraft is not in the south... Im afraid the J-7B in their hands will last for a few more years. As for the 109th Regiment, theres not much to say. They originally took over the batch of J-8E/J-8I that retreated from the 3rd Regiment of the 1st Air Division, Zheng Liangquns old unit. Now, although they are standing in the spotlight and changing their equipment in advance, it can be regarded as a preparation. ?Chang Haonan was chatting with his sister while putting the food on the table. Suddenly, he realized a problem. Speaking of A few seconds later, Chang Haonan sat across from Chang Jiayao and changed the topic and asked: How come you know so much about the affairs in the Jincheng Military Region? "Well" ?This sudden question made the latter hesitate, and after a while he explained without confidence: They are all air force aviation systems... Which unit has changed what equipment... we will not keep it secret from our own people." Brother, you just didnt take the initiative to ask. If you pay attention, someone will tell you... ?This explanation seems to make sense. At least its definitely okay to deceive outsiders. But it is clear that Chang Haonan cannot be convinced: Dont do this. He immediately stopped Chang Jiayaos attempt to seduce the tiger: "If it is not kept secret internally, it is not kept secret, but the army will not make an announcement about the change of equipment. The J-8C has not been the latest model that has attracted much attention for a long time. You have to at least check or ask specifically before you can know the news of the change. " "You have just graduated less than half a year ago. It would be good if you can remember the surrounding areas around the capital and the neighboring troops around your school. Why are you so concerned about the situation in Guangxi Province and southern Xinjiang?" ?Chang Haonan''s eyes narrowed slightly, and his gaze gradually became sharper. Across the dining table, Chang Jiayao suddenly felt that the rice in her hand... wasn''t fragrant anymore. Well, brother, I brought you a gift... ?Chang Haonan''s eyes did not waver at all. Obviously, diversionary strategies dont work. Isome of my classmates were assigned there, so I knew there was the 109th group ?Chang Jiayao had no choice but to give further explanation. "oh?" ?Chang Haonan had a meaningful smile on his face: Classmate...how come I havent heard you mention it before? ?He didnt even need to ask whether it was a male or female classmate The 37th Division is a fighter division, and Chang Jiayaos female pilot class majored in transportation/bombing. Except for Chang Jiayao, who was assigned to the 34th Division to fly special aircraft, the rest of them went to Zhenger. The transport aircraft unit of the Eight Classics. So it must be a male. People, that''s it. ??Although Chang Haonan also hated his parents asking questions about his personal problems, in front of Chang Jiayao, he still seamlessly turned into the person he hated most in the past... Moreover, lets take a step back. That old bachelor happened in his last life. ?In this life, after dancing together two years ago, there was some progress between him and Yao Mengna outside of work. So its reasonable to worry about your sisters love life. Ahem Out of tension, Chang Jiayao ate a piece of chili pepper from the boiled pork slices and choked to tears. There are so many classmates in our class, how can we tell you about each one... After finally recovering, Chang Jiayao continued to talk about him. You also know that you have many classmates? Chang Haonan was very happy: Every year, students from the flight academy will be assigned to almost every aviation division in the entire army. Basically, all pilots in the entire air force are your classmates... By implication, this classmate is obviously extraordinary. In the end, Chang Jiayao gave up the struggle: Just... we had a good relationship when we were in school... Whats the young mans name? Whats his family background like? Have I seen him before? ?Chang Haonan was directly a fatal third company, and then looked at the hesitant Chang Jiayao: "You have to understand that if you don''t tell me now, your parents will ask next time..." ?This sentence is indeed very lethal. Dont...I havent decided whether to tell them yet. Speaking of this, Chang Jiayao''s face turned a little red: You must have never seen him, but you may have heard of his name. His name is Zheng Hui. He was also selected to participate in the military parade in 1999..." He...he is quite good and his grades are good, but...but the assigned place is too far away from the capital, so I havent thought about it yet... When he heard the name Zheng Hui, Chang Haonan felt a little numb He has indeed heard of the other party. ?However, it has nothing to do with the military parade. Chang Haonan is not actually directly responsible for any specific work on the 50th anniversary military parade, so it is impossible to remember the name of every participating pilot. As for this Zheng Hui... is the son of Zheng Liangqun. Not many people know about this matter. Including Chang Jiayao. Judging from her reaction, she probably didnt know either and just treated her as an ordinary student. On the other hand, the relationship between Chang Jiayao and himself has always been hidden underwater. From common sense, Zheng Hui should be equally ignorant. happy. The Smiths belong to yes. They are all well hidden. Logically speaking, it should be considered a good thing if you happen to fall in love with the right person when you are free to fall in love. But Chang Jiayaos concerns are not wrong. It is indeed too far between the capital and southern Xinjiang. Even if both of them were airmen, it would not be enough to bridge this distance. "well" Chang Haonan sighed softly: You should have told me about this when you were choosing your employer... Chang Jiayao did not clearly express her preference for the station at the time. She just hoped to be as close to the front line of the military struggle as possible, so Chang Haonan assigned her to the 34th Division. After all, at the moment, China''s transport aircraft units really don''t have many tasks related to "military struggle". However, when talking about this topic, Chang Jiayao shook her head firmly: This unit is now the closest to the front line among the original options. There is no way I would give up here for someone have to. ?Chang Haonan raised his forehead and shook his head. He should have guessed it. ??If Chang Jiayao was a love brain, she would not have been single until the age of 40 like herself in her previous life... "never mind." ?While Chang Haonan felt a little helpless, he didn''t think there was anything wrong with his sister''s choice. There is no right or wrong distinction between focusing on career or family. You are right, life-long events should be considered carefully... ?Of course, this is just a superficial statement. Actually what he was thinking in his heart was I have to talk to Zheng Liangqun about this matter when I have time. (End of this chapter) Chapter 930 Challenges from COMSOL Chapter 930 Challenges from COMSOL Although he said he wanted to chat with Zheng Liangqun, he had been transferred out of the capital after commanding the 50th anniversary military parade the year before last and went to work at the Jiangcheng Command Post of the Air Force. ?At this juncture, it is impossible for Chang Haonan to fly thousands of kilometers to find someone just for some personal matter. Besides, Chang Jiayao and Zheng Hui are not 23 yet, so there is still time. So, Chang Haonan is still preparing to return to his own job first ? He ??has not forgotten the expectations that brother units put forward for Torch Group at the aerospace theme meeting on September 11th. In any case, the TORCMultiphysics software must undergo a major update. However, what Chang Haonan didn''t expect was that in the more than three weeks since he had focused his attention on the attack, the Torch Group had already ushered in a strong competitor. October 8, the first working day after the National Day holiday. ??Song Jingming, Office Director of Torch Group, and Wei Yongming, Head of the Technical Department, came to the Aviation Power Group with a report ?Now that Torch Group has become a wholly-owned subsidiary of the Aviation Power Group, Chang Haonan saves the trouble of running around every day and can handle most specific matters at the group headquarters. Mr. Chang. There was a knock on the door, causing Chang Haonan to look away from the computer screen and look at the office door. "Old Song Dynasty...and Old Wei Dynasty?" Chang Haonan looked happy, and at the same time stretched out his hand to signal the two of them to sit down on the sofa: You two arrived just in time. I am planning to contact you in two days. ??As he spoke, he turned his office chair and faced the two people who were looking hesitant and said: "Some time ago, I discussed with several core users. The plan is to release version 2.0 of TORCH Multiphysics from the end of this year to the beginning of next year. The main updates of the new version are, first, the introduction of a new turbulence based on DNS simulation and RANS simulation. model, the second is to introduce the level set method for multi-phase interface simulation and topology optimization problems. Especially the latter, it can be said to be the top priority of this upgrade. I have already pushed the theoretical part of the conservation level set method to you before. I wonder how it is currently being advanced at the application level? ??Song Jingming naturally has no chance to speak out about this purely technical issue. ?So Wei Yongming immediately took over the conversation: Mr. Chang, based on the algorithm theory you gave us, we have implemented numerical simulations on the second-level time scale for common multi-phase processes such as combustion, atomization and evaporation in the internal test version. As for the topology optimization problem, this is still being tackled, but the progress is pretty good. If the time node for the new version is the end of this year... it may be a bit nervous, but there should be no problem before the Spring Festival next year. ? Wei Yongming was born in Qinghua University, and was initially responsible for developing embedded operating systems for Torch-C.B. Ferrari. ?However, he soon showed his talents in other development fields, and was transferred to the head office to be responsible for the daily work of the entire technical department, which can be regarded as sharing a lot of Chang Haonan''s pressure. Before the Spring Festival Hearing the other party''s answer, Chang Haonan was naturally quite satisfied, but he still lowered his head and pondered for a moment: Old Wei, lets try not to ask our comrades to work overtime during the Spring Festival holiday. If the progress is really fast, then we can accept that the new version will be launched before the second quarter of next year. Whether it is Torch Group or the entire Aerospace Power Group, due to the special nature of work, continuous overtime work is objectively unavoidable. ??But after all, Chang Haonan worked as a screw for decades in his previous life, so he can still consider it from the perspective of a worker. You must know that in the field of numerical calculation software, Torch Group has become the world leader in a literal sense - I worked overtime when I was lagging behind, but now I am ahead. If I still work overtime, wouldnt my lead be in vain? So, in industries related to computer algorithms, although Torch Group does not offer the best treatment, it has always been relatively humane in terms of work intensity. ? Wei Yongming, who is directly in charge of the technical department, agrees with Chang Haonans philosophy in this regard. ?But this time, he did not nod immediately, but hesitated for a moment, looked at Song Jingming next to him again, and then said solemnly: Mr. Chang, there is a situation now. You are not in the company during this period, so you may not know about it yet. "oh?" Chang Haonan raised his eyebrows: Tell me more specifically? Just last month, during the National Day holiday, the Swedish company COMSOL suddenly announced that they would launch the 2.5 version update of COMSOLMUltiphysics in late October. Wei Yongming stood up and put the report he had just held in front of Chang Haonan: "The specific situation is written in this report, please read it." Chang Haonan immediately sat up straight and opened the folder on the desktop. In fact, the reason why he named his numerical calculation software TORCH Multiphysics was inspired by the products of this Swedish company. Of course it is inspired by the previous life. ?However, due to a strange combination of circumstances, in this timeline, the opponent became a challenger chasing after him. ? Just in the past few years, many friendly companies, including COMSOL and ANSYS, have not been able to truly shake the dominant position of Torch Group. The content in the report is not complicated to summarize. The Swedes hired a very capable American professor to develop a set of unstructured grid generation algorithms that can adapt to drastic changes in the interface by referring to the unstructured grid generation algorithm proposed by Chang Haonan a few years ago. Lagrangian method. Since this method does not involve high-precision formats, but follows the traditional finite volume method, it is highly universal. The most important thing is that when the quality of grid generation is poor, a certain accuracy can still be guaranteed. . Looking at the content in front of him, Chang Haonan frowned in confusion. ??If the other party can really do this without using a high-precision format, it will indeed have a considerable impact on TORCMultiphysics, even version 2.0 of TORCMultiphysics. You must know that the grid generation method specially developed by Torch Group is highly efficient, but it is also more efficient than others when the quality of grid generation is the same. Generally speaking, this step still takes a long time. In most cases, it is impossible for users to find the optimal solution in one grid generation-simulation calculation cycle. So, if you can use a low-quality mesh to achieve 80% or even 70% of the effect, the appeal is very high. The only problem is Is it really possible? Old Wei. Chang Haonan closed the report and looked up at Wei Yongming: "Is there any more specific technology... uh... technology that is unlikely to be made public, and a more specific theoretical derivation process?" Professor Anthony Jameson of Stanford University developed this method. Wei Yongming replied: "He has indeed published several papers related to the finite volume method recently. If you need it, I can send it to you when I get back." Thats not necessary ?Chang Haonan came back to the computer: Ill just check it myself He quickly typed in A. Jameson in the search bar, and then selected Stanford University in the filter. Soon, dozens of related papers popped up. It was only then that Chang Haonan vaguely remembered the name. I went...it turned out to be him? Anthony Jameson. Before the 1990s, he was the man who made the most theoretical contributions to the field of CFD. It is no exaggeration to say that throughout the 1970s and 1980s, Professor Jameson made more contributions to the promotion and application of CFD than all other people in the world combined. ??Although Professor Jameson''s rate of producing results has slowed down slightly since the mid-1990s, Chang Haonan still feels a little pressure to be able to invite such a legendary figure. He sorted the search results by time and quickly found the article Wei Yongming mentioned. Afinite-volumemethodfortheLagrange-Eulerequations ? Published in TheJournalofChemicalPhysics. ?Compared to the JCAS where Chang Haonan''s paper was published, this JCP is definitely the top journal in the industry. "If this is the case, then the tradition of not working overtime during the Spring Festival may have to be broken..." Chang Haonan thought this while opening the PDF document just downloaded to the desktop... (End of this chapter) Chapter 931 Remain unchanged in response to ever-changing changes Chapter 931 Staying unchanged in response to ever-changing changes Time passes minute by minute. ?Chang Haonan frowned slightly and stared at the computer screen. In the huge office, there is almost only the faint "click" sound caused by the occasional rotation of the mouse wheel. Anthony Jamesons paper has a lot of content, but it is not long. In other words, the content is a little jumpy. ??If you are a reader who has not had much exposure to the finite volume method, you will most likely have to read it several times to understand its meaning. Fortunately, although Chang Haonan is not specialized in this, he actually used the software COMSOL Multiphysics a lot in his previous life, so he has some understanding of the Swedish company''s "problem-solving ideas". ? ?About half an hour later, Chang Haonan finally put down the mouse in his hand, leaned back on the chair and exhaled a breath. Apparently I have finished reading it. ?However, his frown did not relax. ?This made Wei Yongming and Song Jingming, who were not far away, couldn''t help but feel a little worried - If Mr. Chang feels that it is difficult to deal with him after seeing it, it means that the other party really has something. ?After a few more minutes, Wei Yongming, who had not dared to disturb him just now, finally couldnt hold it in any longer ? ?Stretching your neck is the same as shrinking your neck. No matter what the conclusion is, dont remain silent... Therefore, after hesitating for a moment, he tentatively expressed his doubts: "Mr. Chang, I think Professor Jameson''s idea is to apply the spectral volume method on an unstructured triangular grid to solve the hyperbolic conservation law. However, I have conducted several calculation tests before, and the spectral volume method is used in calculations. Controlling the surface integral requires a huge number of Gaussian integration points, but will it increase the calculation time? " As the head of the technical department, since Wei Yongming came to see Chang Haonan today, he naturally read this paper in advance. Its just that there are some contents in it that dont seem to match the promotion of the other partys products. The paper...is just a pure theoretical process. Chang Haonan replied: From theoretical derivation to specific algorithm implementation, the details in between are the key to software design. "For example, my paper introducing the conservation level set method was published in a journal, but others did not have the matching grid generation and dimensionality reduction technology for high-order partial differential equations. Even if they understand the content of the paper, , and there is no way to apply it to the software. As for Jamesons method, it should only draw on the idea of ????the spectral volume method, and it is not a direct application of the spectral volume method to unstructured grids. "Although the paper does not involve the subsequent application level, I speculate that they will choose to use the node function value of the spectral unit instead of the volume average to construct the discrete format. In this way, the LevelSet function value of the control volume boundary can use high The linear combination of first-order Lagrangian polynomial interpolation and second-order upwind interpolation is estimated, and the total degrees of freedom and the number of Gaussian integration points will be reduced accordingly. This method is also in line with what COMSOL is good at..." Facing the paper on the computer screen, Chang Haonan quickly guessed the specific technical route of the other party''s algorithm through reverse thinking. Wei Yongming, who was sitting on the sofa, took out a small notebook at some point and was taking notes with his head down. Of course, this is just my speculation from a theoretical level and may not be 100% accurate ?Looking at Wei Yongming who was writing vigorously, Chang Haonan finally did not finish his words and left himself a way out. ??But this sentence obviously had no impact. The movements of the former''s hands even became faster. Song Jingming next to him may have received too much content that he didn''t understand at all. At this time, he felt that his brain was a little swollen, so he took advantage of Wei Yongming''s lack of time to raise his head and quickly changed the topic from technology to management: Mr. Chang, in this situation, do we need to change the original planned update route? Such as... uh... using some newer technologies to deal with it, and so on. In his opinion, since Chang Haonan just showed a solemn expression, it obviously meant that the other party had indeed put enough pressure on him. ?This is of course not entirely Song Jingmings own idea, but a conclusion reached after discussing with Wei Yongming next to him before this trip In the field of CFD, Torch Group actually still has some unused technical reserves. Mainly focused on high-precision methods. Just because of the development cycle problem, it cannot keep up with the original update schedule. At present, if we want to continue to maintain Torch Groups advantages in numerical calculations, especially in the field of computational fluid dynamics, we must delay updates to introduce these more promising technologies. However, Chang Haonan did not nod immediately. He started preparing for the update to version 2.0 of TORCH Multiphysics software more than half a year ago, which involves major improvements in three aspects: multiphase flow, topology optimization and CFD. ??Now it can be said that we are just one step away from the launch of the new version. If you rashly disrupt your own rhythm because of the other party''s actions, you will fall into passivity. In fact, in the final analysis, it is still caused by backward data transmission methods. In 2001, the main means of updating large-volume commercial software was still to physically mail storage media such as CDs or hard drives. This means that users cannot accept too high an update frequency. It also means that vicious bugs are completely unacceptable. Because the cycle and cost of fixing bugs are unacceptably high. Therefore, the software testing cycle these days is generally relatively long to ensure that no big troubles occur. ??And if the software can be upgraded online at any time, like more than 20 years later, then a 2.0.5 Beta version can be pushed first, and after the new technology has stabilized, the official 2.1 version can be pushed. ?Even if there are some bugs in the first version, they can be quickly corrected. Furthermore, there is an even more important point. ?That paper. Although Chang Haonan understood it and even guessed the opponent''s general technical route. But there were still some details that concerned him. ?That''s right, he had been frowning just now. In fact, he was not worried about the threat caused by friendly businessmen to the Torch Group, but was thinking about these issues. It was just misunderstood by the two people opposite... After struggling alone for a few minutes, Chang Haonan raised his head again and answered decisively: Updated plan, unchanged! No unchanged? ?This decision was obviously beyond the expectations of the two people on the sofa. "right." ?Chang Haonan nodded, then stood up and came to the window, looking at the city in the distance: "On the one hand, we cannot be led by others. Even if the new version of COMSOL Multiphysics can achieve the effects they advertise in the CFD field, we still have advantages in multiphase flow and structural topology optimization, so users cannot be like this Give up our software." So, the worst-case scenario is that a significant number of users start using our two software programs for different problems, which is not completely unacceptable to us. At this point, he paused for a moment, then turned around and gestured in the direction of the computer screen: "On the other hand, this paper only mentions the discretization method of using the lattice-centered finite volume method for the N-S equation, but in actual operations, there are not many high calculation weight issues that are common when numerically solving viscoelastic constitutive equations. discuss." For this type of problem, the LCR method that is currently being studied most is to convert the original stress tensor evolution equation into an evolution equation in the logarithmic form of the conformation tensor matrix. This process requires the calculation of the stress tensor and the conformation tensor. Repeated conversion of the matrix logarithmic form of a quantity can easily cause loss of accuracy. If the calculation weight is too large, it may even cause the algorithm to collapse. " Of course, it is impossible for a consultant of a commercial company to write down all the technical details when publishing a paper, but it is still too strange not to mention it at all Chang Haonan touched his chin as he spoke. ??Although this sentence has obviously not been finished yet, Wei Yongming is already a little unable to hold on: Mr. Chang, our group has not researched the finite volume method as a key technology, right? Youknow so clearly? Oh, its clear that we cant talk about it. Chang Haonan waved his hand and replied with an indifferent expression: When the Torch Group was not officially established, I read some relevant information in order to select a technical route for the new software, but I didnt expect it to be useful at this time. "Anyway... they said they will push out the update later this month. It only takes two weeks. Let''s keep the same to cope with the changes. After their new version is released, we will see what is sold in Hululi. What medicine (End of this chapter) Chapter 932 No, is it really a steal? Chapter 932 Isnt it? Its really a steal? ??Although there are still some things that they dont understand, now that Chang Haonan, as the general manager, has made a decision, what will Wei Yongming and Song Jingming do next. Naturally, the original plan will be implemented. After sending the two people away, the former sat back at his desk and stared at the third chapter of the paper on the screen for a long time - In fact, so far, the calculation divergence problem caused by high calculation weights has not been solved, and there is not even a widely recognized cause. Chang Haonan only realized the existence of this problem through extensive practice in the past few years. But when he was summarizing the problem to the second point, a light suddenly flashed in his mind. The development of the stress field is mainly affected by the convection terms and deformation terms, and evolves rapidly in the form of exponential growth. However, the traditional numerical discretization format based on polynomial interpolation cannot accurately capture the change law of this exponential growth, which makes the constitutive equation The contributions of the convection term and the deformation term to the stress evolution cannot be balanced, resulting in calculation divergence. Therefore, theoretically speaking, as long as the exponential growth rate of stress is slowed down in the area of ??large stress gradient change during the solution process of the finite volume method, the stability of the numerical calculation can be guaranteed. ?So, after another quarter of an hour of brainstorming, Chang Haonan stood up suddenly. The headquarters of the Aerospace Power Group is a relatively simple administrative agency and does not have research functions. Therefore, even if you have an idea, it is impossible to get results just by sitting in front of the computer in the office. He first picked up the phone and contacted Zhu Yadan who was waiting on the first floor. Then I changed my clothes and went downstairs, preparing to take the car to the new site of the Torch Laboratory that has been completed. ?There is a supercomputer there that is better than the Beijing Airlines Computing Center, which is enough for Chang Haonan to test whether the idea he just had is correct. In fact, this work was almost entirely out of Chang Haonans interests. ??Due to the different theoretical principles and technical routes adopted by the TORCMultiphysics software, it does not face the problem of high calculation weights. However, as a scholar who studies numerical calculations and has the long-term goal of solving N-S equation problems, Chang Haonan is not particularly utilitarian in his research in this field. After all, many seemingly earth-shattering results only originated from a seemingly useless curiosity. After arriving at the laboratory, he dived into the computing center located underground in Building 2... ?In the engine room, Wang Jie and Qin Haiyang are immersed in front of the computer, optimizing the design of the engine nacelle of the Falcon Z project. At this moment, there was a sudden noise at the door. The two of them raised their heads and saw their mentor hurriedly pushing the door open. ?) ?Looking at the sudden appearance of Chang Haonan, Qin Haiyang, who was not very familiar with the situation of the research team, naturally thought that he was coming to check the post. ?So, he stood up directly, took out a work diary from his schoolbag, sat upright, and prepared to report on the progress of his work. ??However, Wang Jie, who has been studying for a Ph.D. in Torch Lab for one year, knows very well that Chang Haonan basically does not engage in such formalistic work inspections. ?Many tutors are keen on this because they often ask students to do research areas that they do not know much about. Only through regular reports can they keep track of the progress of the project. And here Although the business scope of the Torch Laboratory is wider than that of most research groups, each research direction must be familiar to the teachers themselves. ?Especially for Chang Haonan, he basically only needs to take a look at the calculation program and calculation results, and simply ask a few questions to accurately determine the current situation of the project. ?Wang Jie already had a deep understanding of this when he was in Shanghai. Therefore, he first patted Tan Haiyang''s shoulder to signal the latter to relax. At the same time, he took two steps forward and briefly explained the work they were currently doing. Chang Haonan had no intention of checking his work, and Wang Jie''s work efficiency and attitude were very reassuring, so he simply nodded and sat in front of another computer terminal next to the computer room, preparing to conduct his own research. . ?However, while waiting for the computer to turn on, he accidentally glanced at the screen next to him. Eh? It doesnt matter if you dont look at it, this look really attracted his attention: Are you... doing a flow field simulation of the engine nacelle? Logically speaking, the optimization of the aerodynamic shape of the aircraft is not yet meticulous enough to require attention to design details such as the engine nacelle. So, this work should be a relatively simple structural optimization problem. But it is obvious that Wang Jie and Qin Haiyang are not satisfied with this. Thats right. ?Wang Jie scratched his head and replied: We have carefully looked at the overall design plan of the Falcon Z project during this period and found that no matter how we optimize the structure of the engine nacelle, especially the weight, it will have minimal impact on the performance of the entire aircraft. ?Chang Haonan said in his heart that it was indeed insignificant, otherwise I wouldnt dare to bring it over to practice with you two... ?Of course, he couldnt say these words, so on the surface he still looked like he was listening carefully. So, we were thinking about whether we could make some optimizations in other places besides the structure. Like aerodynamic resistance? Chang Haonan looked at the nacelle model that had completed high-precision meshing, and he already had a higher evaluation of Wang Jie in his heart. However, the latter shook his head: I did think about starting from the drag reduction level at the beginning. However, the tail-slung engine layout has inherent disadvantages in terms of drag. The optimization range is really not large, and it still does not have a significant effect on the performance of the entire machine. help." So in the end, we decided to learn from your previous ideas and use the calculation form of flow field combined with sound field to optimize the noise level of the cabin, especially the rear part of the cabin, by improving the internal structure of the engine nacelle. I have to say that although Wang Jie is only in his second year of Ph.D., he is indeed capable of taking charge of his own work. Its not just about ability, but also about subjective initiative. Just at this time, the computer in front of Chang Haonan had also entered the supercomputing system, so he stopped asking for other details and devoted himself wholeheartedly to his work... The week passed quickly. ?Chang Haonans research can be regarded as the beginning of its emergence. He has found a constitutive equation that does not involve diffusion terms, and based on it, he has achieved convergence processing for convection terms and deformation terms. It can be said that there is only one step left to solve the problem that is not faced by Torch Group. But Chang Haonan''s doubts did not ease. On the contrary, it became thicker. You must know that he used many special methods in solving this problem. For example, from a calculation log whose results are divergent, use a data dimensionality reduction algorithm to extract useful data, and then iterate based on this to optimize the form of the constitutive equation. ?As far as theoretical research is concerned, this is a naked heresy and violent cheating. It is almost equivalent to doing the multiple-choice geometry questions in the college entrance examination. Others are deducing step by step, but you directly use the ruler to measure. However! It is not that Chang Haonan is biased against Professor Anthony Jameson. But this method, apart from him, there is probably no other person in the world who can master it. Then the question arises. How did COMSOL solve this problem? ??Did Professor Jameson come up with some calculation method that was so clever that even Chang Haonan himself didn''t discover it? Or is it because the former is simply lucky and achieves the same effect as high-order data dimensionality reduction through blind guessing? It doesnt seem very reasonable But I cant think of any other possibilities. In short, Chang Haonan is increasingly looking forward to the day when the new version of COMSOL Multiphysics will be officially released. However, plans cannot keep up with changes. Before the release of a new product by a friend, something unexpected happened, interrupting Chang Haonan''s work schedule... The trouble comes from the Hudong Factory. ?One Friday afternoon when it was raining heavily, Lei Zhixing suddenly took the train from Shanghai to Beijing overnight. Mr. Chang, there is an emergency. ?Lei Zhixing took off his wet poncho and placed it outside the door, then shook off the water drops on his body before walking into Chang Haonan''s office. While speaking, the former placed a sealed file bag on his desk. ?Different from the seal they affixed themselves last time, this time the seal had a large seal, indicating that it contained serious factory documents. ??While Chang Haonan was opening the package, Lei Zhixing briefly introduced the situation: Samsung Offshore moved very quickly after snatching our order for eight LNG ships, and the specific technical plan was finalized not long ago. Then, we obtained the design drafts that Koreans used to bid through public channels. When he said this, Chang Haonan had already taken out the contents of the file bag. It is a design drawing. Or strictly speaking, a design proposal. ??Its just that a lot of the content has been blacked out, leaving only the design drawing relatively complete. But this is enough. Because almost in a blink of an eye, Chang Haonan saw a set of structures around the cargo tank that he was very familiar with... Im going to ?He was so shocked that his eyes almost popped out: Isnt this our BOG reliquefaction system? You really dare to steal? (End of this chapter) Chapter 933 Xiao Han, you can’t control the water depth of the LNG ship. Chapter 933 Xiao Han, you cant control the water depth of the LNG ship... Mr. Chang, do you need to ask the comrades from the legal department to handle this? Looking at Chang Haonan with a gloomy expression on his face, Lei Zhixing asked tentatively. ?Of course, as a purely scientific research institution, Torch Laboratory does not have a legal department. ?However, Torch Group has In fact, long before TORCMultiphysics was officially released, in order to adapt to the intellectual property and computer software-related laws and regulations of other countries, Chang Haonan entrusted Teacher Yang Huimei to set up a legal department with a wide range of business scope. Over the years, the reason why the Torch Group''s products and services have been able to flow unimpeded in many countries is that it has never encountered any case worth writing about. Apart from its own strength, Chang Haonan and some small local tycoons. In addition to good relationships with influential companies, rigorous, detailed and timely updated user manuals also play a very important role. ?However, thats why. Compared to its struggling counterparts in other companies, Torch Group''s legal department is still slightly less experienced in practical operations, that is, in litigation. "Well" ?Chang Haonan hesitated for a moment, but then nodded: Ill contact Professor Yang and Director Song and hold a meeting between various departments of the group... "good!" ?Lei Zhixing showed a relieved expression: They should be taught a lesson by stealing our patent so blatantly! You know, in this round of the overall game on the technical route of the second-generation membrane LNG ship, even if it is not a matter of life and death, there is a high probability that the party that wins in the end will be the winner-take-all, while the loser will have to wait for at least the next 10-15 years. It is difficult for anyone to raise their head again in this field, and they can only survive on scraps. Originally, the Hudong plant, which had lost the opportunity, had made strategic plans to give up the past ten years. However, at the most critical moment, it was revitalized by the BOG re-liquefaction patent developed by Chang Haonan. At least it saw victory. possible. ??But if Samsung Offshore also uses the same level of re-liquefaction technology, then relying on the inherent lightweight advantage of the Technigaz cargo tank, China will have no chance of winning. Therefore, for Lei Zhixing, who has been working on this project for two years, this is tantamount to being jumped in the face and ridiculed. Being able to maintain rationality without being hot-tempered is already considered a mild-tempered person. ?However, seeing the other party''s excited reaction, Chang Haonan just touched his nose in embarrassment: "Well" Actually, Zhixing, the actual situation may be a little different from what you think ?Lei Zhixings expression suddenly froze: "Mr. Chang, what do you mean..." "never mind." Chang Haonan waved his hand: Youll find out at the meeting tomorrow. His thoughts cannot be clearly explained in a few sentences. ??Furthermore, Lei Zhixing is currently in a state of anger, so it is not suitable for him to talk about too in-depth topics. Therefore, after getting started, Chang Haonan decided not to waste words for the time being and wait until the meeting to discuss it together... ??The Torch Group itself is actually not very large, so it wont take long to convene a meeting of middle- and high-level leaders. Chang Haonan made a call, and the next morning, except for Wei Yongming, who was not directly related to the matter and couldn''t leave, all the other department heads sat in the conference room. As usual, Song Jingming made a simple opening statement and gave a general introduction to the current situation. ?At this time, not only Lei Zhixing, but also most of the participants felt angry and funny. The reasons for anger are naturally similar to the former. Are you laughing... ?This kind of blatant theft of technology is simply food for the legal department... For a time, the atmosphere in the conference room became lively. In the end, it was Chang Haonan who stretched out his hand and pressed it down to calm down the already somewhat off-topic debate. ?However, it is not that there are calmer people. After the conference room became quiet again, Kang Kaicai, director of the External Relations Department in charge of external cooperation, asked: "Mr. Chang, although I don''t quite trust the character of Samsung Offshore Engineering, the other party''s experience in international commercial law and transnational patent rights is much richer than ours. Even if we consider it purely from a rational perspective, it is unlikely that the other party will expose it. Its only right to give us such a big loophole. So, will there be anything behind this... ?At this time, China has only joined the WTO for a year, so domestic companies will show some inexperience in dealing with international trade disputes. ?Even in many cases, we just accept the loss and admit defeat. This naturally includes Torch Group. It can be said that, except for members of the legal affairs and external relations departments, other people still have a partial understanding of these contents. Chang Haonan is holding this meeting today. In addition to deploying his own plans, he is also taking this opportunity to train everyone''s troops. ?So, he nodded, agreeing with Kang Kais view, and then turned to the head of the legal department and an expert in international commercial law, Dr. Hou Shunda: Director Hou, please explain the situation in detail. "good." ?Hou Shunda opened the folder in front of him unhurriedly: Although I understand the sentiments of all comrades, as a legal officer, I still have to pour cold water on everyone to cool down the situation. Last night, we compared the previously registered patent description document with the design document disclosed by Samsung Offshore Engineering, and finally confirmed..." At this point, he paused slightly: It was finally confirmed that the other party basically avoided our groups patent on the BOG reliquefaction system. Although there are some marginal areas, if a lawsuit is filed on this basis, I am afraid that the dispute will last for a long time..." "What?!" ?Lei Zhixing, who was originally full of expectations, immediately sat up straight. He only knew that Chang Haonan had registered a patent for the BOG reliquefaction system, but as a technician, he had not actually read the relevant legal documents sentence by sentence. It is naturally difficult to accept it now. "calm." Chang Haonan did not change his expression, but stretched out his finger and tapped the table lightly. In fact, he knew this would be the case when he saw the design document for the first time yesterday. The reason why he was extremely shocked at that time had another reason. Actually, the liquefaction process itself of the BOG reliquefaction system, whether it is cascade type, refrigerant type, or expander type, is a fairly mature technology in the chemical industry. Facing a group of subordinates with different reactions, Chang Haonan slowly opened his mouth and explained: Their core patents have been registered as early as last century, or even last century, and now the protection period has expired. No one can re-apply for a patent based on these contents. Of course, we can register patents for some bits and pieces of peripheral technologies to obtain certain protection. However, this registration method is very easy to be bypassed, especially for an experienced player like Samsung Offshore Engineering, so it makes sense. Not big either. So, when I submitted the patent application, I changed my mind and registered a large number of patents focused on the adaptation between the reliquefaction system and the cargo tank, as well as the reliability design of the entire ship. At that time, I felt that as everyone was professional in shipbuilding, they should be able to see that this system would have an impact on the hull structure itself, so no matter what path our competitors took in liquefaction technology, they would eventually have to come to us to solve safety issues. " What I never expected was that someone was so bold that he changed the design we made to ensure safety beyond recognition, and then he didnt even test it, and just drew it directly on the design plan..." Chang Haonan said helplessly, holding his forehead with one hand and shaking his head. The core technical principles of this BOG reliquefaction system were basically developed by him alone. No matter the Hudong plant, Lei Zhixing and Liu Fangping, they can only understand the specific design plan at present. That''s why there is this oolong. Actually, from the perspective of hindsight, he did underestimate the Korean peoples urinary nature. ? In the previous life, South Korea also did similar things when developing its own KUH1 "Perfect Eagle" helicopter (actually a copy of the Super Puma). Because I did not go through detailed examination, I just thought about it for a while and then blindly changed the propeller hub. As a result, the main rotor of a helicopter directly separated from the fuselage during flight and flew away... ?Thinking about it this way, the things in front of me seem to have a hint of reasonableness in the absurdity... For a time, the expressions of other people in the conference room were very exciting. "so" ?Lei Zhixing, who was so excited that he almost banged the table, inevitably felt a little embarrassed at this moment: Actually, we dont need to care about this matter at all? Thats not the case. Chang Haonan waved his hand: "After all, the other party still made some marginal moves, and the design plan obviously borrowed a lot from us. Even if the lawsuit cannot reach a final result, it can allow the comrades in the legal department to practice their skills, and by the way, help us Torch Group and Hudong Factory to Wave publicity. Im thinking now, should I take the initiative to remind Samsung Offshore Engineering that the risks behind this technology are not small, and if you mess around, something could easily happen... ?At this time, even Kang Kai and Hou Shunda were a little confused: "Mr. Chang, is this... unnecessary?" Yeah, if we dont add fuel to the flames from behind, it would be a big favor for them If something goes wrong with Samsung Offshores LNG ship, wouldnt that be a huge benefit to us? ?All kinds of doubts arise one after another. Actually, Chang Haonan was a little hard to make a choice at this time. On the surface, it is indeed what you said. He frowned slightly and rubbed the acupuncture points on both sides of the bridge of his nose: But the beasts like Samsung Offshore...these guys are so courageous. If those LNG ships are put into use, I cant even estimate how much trouble there will be..." In fact, if this is a normal transaction, Party A will also conduct relevant testing before receiving the goods, and there is a high probability that substandard products will be kept out. But the problem is that this wave of Xizhuer is to deceive and sneak attacks. Norwegians simply dont wait for delivery before they start their classic operation. In the end, these eight LNG ships will definitely be sold as second-hand ships to an unknown buyer. And the degree of regulation of this kind of transaction is uncertain. "What if Samsung Offshore inherits the glorious tradition of the Japanese and controls the risk within a very precise range, resulting in no detection during the testing process, but a big problem occurs after it is put into use...for example, it explodes, then for The entire LNG transportation industry is probably a major blow. "Ordinary people don''t care whether the cargo tank you use is Gas-Transport or Technigaz, nor do they care whether your ship is made by Samsung Offshore Engineering or Hudong-Zhonghua. If it really explodes, I''m afraid the major ports will be affected the next day. We have to refuse LNG ships to dock... This is also a big risk for us. "in addition." ?Chang Haonan picked up the tea cup and took a sip of water, and then continued to add: Although it sounds outrageous, in the eyes of many foreigners, several countries in East Asia are actually tied together... Japanese companies only made a splash a few years ago. If Korean companies start to make a splash soon after, it may not be a good thing for our image..." ?This explanation made the other people''s expressions become solemn again. "Isn''t this a pure and innocent disaster..." ?Kang Kai complained ventingly. But complaints are complaints. As the head of the external relations department, he knows that the situation mentioned by Chang Haonan does exist. In 2001, China''s influence was still at a relatively low level. It is true that we have not yet gotten rid of the shackles of the classification of East Asia. "Then...does it mean we have to rush to wipe their butts?" ?Lei Zhixing also found it a bit difficult to accept. Of course thats impossiblewere not doing charity. ?Chang Haonan decisively denied it. For a time, everyone fell into the same tangle as him. No matter what choice you make, there are pros and cons. ? And because there are so many variables, its difficult to choose the lesser of two evils. After a few minutes, Chang Haonan finally decided to cut the knot quickly: "never mind." He took a deep breath: The lawsuit against Samsung Offshore Engineering is actually a wake-up call for them. If the opponent insists on being stubborn, then we are not their parents, so there is no need to wait behind them. We can just cut them in advance to reduce the impact on us as much as possible..." The meeting is dismissed! (End of this chapter) Chapter 934 You are quite a nice person! Chapter 934 You are quite a nice person! Now that the countermeasures have been determined, the next main tasks belong to the Legal Department and the Propaganda Department. For this incident, the lawsuit itself is actually more important than the outcome of the lawsuit. Hence, Chang Haonan never set winning the lawsuit as his core goal from the beginning. Instead, we should try our best to expand our influence. ? No matter what the result is, the whole world, or at least peers around the world, will know that this BOG reliquefaction system was grafted indiscriminately by Koreans without core technology. ?Even if something happens, it has nothing to do with our Torch Group. Stay away, dont touch the blood on me.jpg Under this kind of thinking, the preparation work before litigation becomes less important. ??The right thing to do is to file a lawsuit quickly. Hence, compared to conventional intellectual property cases that often require months or even years to collect evidence, this time the Ministry of Justice acted frighteningly fast. In less than a week, Torch Group was ready to file an intellectual property lawsuit against Samsung Offshore Engineering, requiring it to stop using the BOG reliquefaction system patent that has been registered by the former on eight LNG ships currently and to be built. . In fact, this efficiency can be achieved somewhat thanks to the Norwegian party who ordered the ship. They specifically require in the contract that Party B needs to publicly display the ship design and construction information. ?The original intention of doing this is probably to facilitate your subsequent operations. But objectively speaking, it did allow Torch Group to master the first-hand evidence with almost no effort... At the same time, publicity efforts have also begun to continue. ?For several days, different Chinese media reported on Torch Groups lawsuit against Samsung Offshore from different angles ??Although Torch Group is not prominent, it is still a state-owned enterprise subsidiary directly under the Aviation Power Group, and it definitely lacks resources in this area. ?However, the development of the situation quickly exceeded Chang Haonan''s expectations. At the beginning, he actually just contacted a few print media and planned to publish a few reports or commentator articles in secondary positions other than the front page. But by chance, one of the reports was noticed by the leader of the trade department. At this point in time in 2001, it was actually very subtle. In the past, when China did business with foreign companies, the various steps involved were quite troublesome. ? Even in many cases, the people who actually face foreign companies are not necessarily businessmen, but official personnel of the Ministry of Foreign Trade and Economic Cooperation. ?Although this is a bit less efficient, the situation is basically out of control. But now, the authority at the enterprise level has been greatly enhanced. Although foreign trade still requires licenses and approvals, most of the time, it is a direct head-to-head relationship between domestic companies and foreign companies. It is not difficult to imagine that the number of disputes arising from this in the past year has been several orders of magnitude greater than in the past. ?However, after all, China has only joined the WTO for one year. ?Most companies have no experience in handling such disputes and can only be beaten passively. ??Even if you suffer a loss, you dont even know where it is. Faced with this situation, the Ministry of Foreign Trade and Economic Cooperation is relatively helpless. On the one hand, due to relevant WTO regulations, it is not convenient for them to directly intervene in corporate-level affairs. On the other hand, faced with such a huge number of problems, it is impossible to have enough manpower to deal with them one by one. So, the country now urgently needs a model to set an example for other enterprises. Have you seen it? If you encounter trouble in the future, just do it this way. Therefore, driven by various forces, the relevant reports on the Torch Groups indictment have already appeared on Xinwen Network before it was formally submitted. Although it was only mentioned in the news section. Theres not even a picture. But that is also a sentence in Xinwen Broadcast. As a result, it quickly aroused greater response and attention. For the melon-eating masses, the impact of market opening is at its peak, and the filters brought by foreign companies and brands are extremely strong. In this general context, Chinese companies sue foreign companies for infringement of intellectual property rights, which itself is eye-catching enough. For the vast number of business colleagues, who are in confusion, they really need a benchmark to learn from and refer to. In short, it wasnt until Song Jingming sent an interview invitation from CCTV to Chang Haonans desk that he realized belatedly ?Him, or rather the historic prosecution of Torch Group, has quietly become the biggest topic in the Chinese business community in the past two days... In fact, for him, being in the news is no longer unfamiliar. After winning the May 4th Youth Medal, and after the historic flood fighting and disaster relief work, he was interviewed by CCTV. ?But strictly speaking, those two times can only be regarded as part of a series of reports. Interview materials are also comprehensive news that has been edited and spliced ??together with other images. But this time, it was a serious one-on-one interview. The kind that is served as a dish on its own. ?Of course, you still have to do some superficial work. ??If the topic of Torch Group v. Samsung Offshore was discussed from beginning to end, it would be too obviously offensive. So, the main topic of the news is still about the development process of Torch Group from scratch, from weak to strong. The part related to the case will probably only occupy about three-quarters of the space. Also due to the nature of the program, this interview was not conducted at Chang Haonans office as in the past. ??But in a studio of CCTV. ??When Chang Haonan arrived at the interview location at the agreed time, he was greeted by another more important figure besides the person in charge of the news center. Comrade Haonan, thank you very much for supporting our work. The visitor warmly shook hands with Chang Haonan who had just got off the car. "Director Long is so polite..." After being briefly shocked, Chang Haonan quickly responded: "Whether it is your work or our work, in the final analysis, the purpose is the same..." Long Yongtu, the chief representative of the Ministry of Foreign Trade and Economic Cooperation responsible for Chinas WTO negotiations and a member of the leadership team. ?Chang Haonan and the other party have met several times. ?Of course, even if it doesnt happen, this name that will appear in textbooks in the future is still enough to be heard. At this moment, since China''s WTO accession process has officially ended, Long Yongtu has no choice but to take a break. But anyone with a little foresight can guess that he will be the second-in-command of the Ministry of Foreign Trade and Economic Cooperation in the future. After a brief exchange of greetings, the three of them walked into the CCTV headquarters building under the guidance of the staff. Tell the truth, Director Long. ?While waiting for the interview to start in the lounge, Chang Haonan said to Long Yongtu: You gave me a big surprise. Before I received todays interview invitation, I didnt know that your Ministry of Foreign Trade and Economic Cooperation had paid attention to this matter. ?Originally, this sentence was just a casual chat to kill time, but Long Yongtu sighed seriously: "well" After joining the WTO, we discovered that in international trade, there are far more disputes than cooperation. You may not believe it, but in the past year or so, Torch Group has been the first company in mainland China to take the initiative to resolve trade disputes through legal procedures. So no matter what the result is, we have to put this example up... Chang Haonan actually knew this. In the last life, it was not until 2006 that the first Chinese company sued a foreign company for intellectual property infringement. This shows how backward Chinas awareness is in this regard. On the other side, after a brief pause, Long Yongtu continued: "Originally, the ministry was prepared to publicize it according to the standards of the ''first WTO case'', but you specifically emphasized it yesterday, saying that the purpose of this lawsuit is not to win, and there is a high probability that there will be no clear result in the end, so we just We held an emergency meeting and decided to tone it down a bit..." After Chang Haonan heard this, he called him a good guy in his heart. ??He was a little bit muttered just now, saying why the standards of today''s interview were so high, and even the Ministry of Foreign Trade and Economic Cooperation specially sent a member of the leadership team to accompany him... ?Long Yongtu originally wanted to continue saying something, but at this time, the person in charge of the news center opened the door and said that the interview was ready and could begin. ??Although it is a face-to-face interview with special specifications, the format is not much different from the past. ??Its just that the host has been changed. In the opening part, Chang Haonan first briefly reviewed the brief but glorious development history of Torch Group, and then, under the guidance of the host, introduced the two current main businesses of Yifan Group. That is, TORCMultiphysics software, and numerical calculation business that can provide finished solutions. The following second part begins with the theme of todays interview. I have noticed the content of the lawsuit filed by Torch Group. It is believed that Samsung Offshore Group has infringed on your patent on the BOG reliquefaction system. Could you please briefly introduce this technology to us? You just mentioned LNG ships. In this field, what is the current development status at home and abroad? In other words, your companys patented technology will have a decisive impact on the development direction of the LNG transportation field, is that true? As an interview for the public, of course the host cannot just ask what he wants to know, but must first lay the groundwork and ask some basic questions for the people in front of the TV. After having a general understanding of the background knowledge, it is easy to get into the core topics: "Before today''s interview, I specifically reviewed the litigation documents submitted by your company to the domestic and EU courts. I wonder what your expectations are for the next lawsuit? Will you win completely and let the other party stop the infringement, or will you prepare Settlement out of court and collect royalties? It can be seen that the host has definitely done his homework. In his opinion, Chang Haonan made it clear yesterday that the purpose of this lawsuit is not to win, so it must be the latter answer. ?So, as long as Chang Haonan gives an answer, he can express his appreciation and then naturally bring up a series of topics that have been prepared. However, faced with this problem, Chang Haonan hesitated: Uh...actually none of them. ?The host opposite had a look of confusion in his eyes. ?Chang Haonan''s completely unreasonable answer made him feel that his career seemed to be being challenged. However, before he could think of the next question, Chang Haonan spoke again: Our original intention in filing this lawsuit is actually to save the LNG transportation industry. ?At this time, not only the host, but also Long Yongtu, who had been sitting outside the camera, was shocked, and he made a tactical retreat. Savethe LNG shipping industry? ??The host is still trying to bring the topic back on track. Thats right. Chang Haonan nodded: Samsung Offshore not only illegally used our intellectual property BOG reliquefaction system, but also completely failed to understand the content of our patents. "If the ship is built according to their plan, the sealing of the cargo tank and the strength of the hull may be affected. Once filled with liquefied natural gas, it will become a bomb floating on the sea, which may cause gas leakage at any time. Leakage, hull cracking... or even a direct explosion." The reason why we chose to go through the legal process with such high-profile is that economic considerations are only secondary factors. The key is to hope that Samsung Offshore can learn from this and avoid inestimable threats to international shipping safety, energy security and the global environment... " So, from this perspective, Samsung Offshore should actually be grateful to us for this prosecution, which gave them an opportunity to step back from the brink and turn around. ?This high-sounding statement shocked everyone in the studio. The host who faced Chang Haonan couldn''t help but take a deep breath. ??If the camera hadn''t been on, he would probably have spoken out what was in his heart at this moment - Mr. Chang, you are quite a nice person... (End of this chapter) Chapter 935 assist from norwegian Chapter 935 The Norwegians assist ?Although we experienced some bumps along the way, fortunately it was not a live broadcast, so this interview ended normally. ??The moment the on-site director shouted cut for the last time, the host realized that his entire back was soaked... And Long Yongtu, who had been watching from the side, unknowingly had several wet wads of toilet paper on hand... My superiors specially sent me here this time because they were worried that you were inexperienced and might be in bad shape or nervous during a long interview. Long Yongtu looked at Chang Haonan, who was in high spirits and seemed to be in high spirits, and shook his head helplessly: Now it seems that I was completely over-worrying The key to running a business is integrity. Chang Haonan replied while sorting out the information he brought over but did not use. So, I always say whatever I have. Hearing these words, Long Yongtus expression almost became tense. He said to himself that I believe you are the only one who is evil. In the end, he bit the tip of his tongue hard to hold back his laughter, so he quickly changed the subject: "I will be the host tonight. On behalf of our Ministry of Foreign Economic and Trade Cooperation, I would like to thank you, Comrade Haonan..." On the other side, Director He Gang from the News Center also came to the host who was almost slumped on the sofa: Xiaokang, you performed well today and responded... very promptly. Even if it is not a live broadcast, if you cut off too many times during the interview, the final effect of the film will be greatly reduced. More importantly, it is impossible to ask the interviewees to cooperate with you to re-record indefinitely. So, it is better to do it once if you can do it again. And he was able to stabilize the situation in such a chaotic situation, which obviously shows that his business level is quite good. ??The host wiped the sweat on his forehead with the back of his hand: I feel like today is a disaster for my hosting career... Not so much as not He Gang quickly gave his subordinates psychological training. ??In the past two years, a lot of well-known CCTV hosts have gone overseas to work alone, and manpower is already tight. If a capable host loses his mentality because of one episode of the program, the loss will be huge. Director He. ?At this time, Chang Haonan''s voice suddenly came from not far behind. Mr. Chang. The two of them stood up quickly. I hope that the part in the middle about the purpose of the prosecution can be completely retained when it is broadcast. Todays interview lasted about 45 minutes in total, but excluding the opening credits and advertisements when the program was broadcast, there was only about 35 minutes of actual content. Hence, some unimportant parts must be cut out. But Chang Haonans statement was intended to make big news, so naturally he couldnt just let others delete it. "this" He Gang was suddenly sweating profusely. He suddenly felt that today might also be a disaster for his career. ??If another person were to be the interviewee, at the level of CCTV, it would be cut. However, as a subject who has been personally interviewed by the Ministry of Foreign Trade and Economic Cooperation, Chang Haonans stance is quite weighty. Mr. Chang, the production and broadcast of this program need to be decided by superiors. At the news center level... we cannot directly take this decision..." But how could Chang Haonan let the other party deal with it casually: This matter is very important, so... I would like you to go and ask for instructions now. In short, Chang Haonans request was finally met. ?A few days later, CCTV broadcast the entire interview on Sunday evening. Only a few small issues at the beginning and towards the end were cut due to time reasons, and all the key parts were retained. ? It was on the same day that Torch Group formally submitted the relevant evidence previously collected to two courts in Brussels and Beijing. The combination of the two directly ignited the topic. ?Originally, the shipbuilding industry, especially the civilian shipbuilding industry, was not very eye-catching in the world. However, Chang Haonans interview was too essential. ?Especially the paragraph "I''m suing you for your own good", if left in the later Internet era, it would become a famous meme. Whats more important is that Chang Haonan is not just talking about getting high. After the program was broadcast, Torch Group published a lengthy open letter in Chinese, English and French, explaining from a technical level why the BOG reliquefaction system cannot be directly grafted into the Technigaz cargo tank. of LNG on board. At the end of the open letter, Chang Haonan also added a special paragraph, saying that Samsung Offshore''s behavior is not only an infringement of the interests of Torch Group, but also irresponsible to the entire industry and all mankind. If you continue to insist on going your own way, don''t say anything. This is also true for unexpected events. ?After such a lot of trouble, this matter has basically been spread all over the world, especially in China and EU countries - At the beginning of the 21st century, environmental issues have basically become a part of political correctness in Europe. ??The Torch Group has been emphasizing terms such as "environmental pollution" and "climate disaster" on various occasions, and with the help of some "media public relations expenses", it is naturally easy to spread. Anyway, the purpose of early cutting has definitely been achieved. Nowadays, the people who eat melon may not even know what LNG is, but they know that a Chinese company has issued a danger warning... To be fair, Chang Haonan has done what he has done now, which can be regarded as the most benevolent and righteous. Especially the open letter, after obtaining the permission of the Hudong plant, even disclosed a small part of the technical details of the BOG reliquefaction system to explain why this system must be used with the relatively conservative Gas-Transport cargo tank. Logically speaking, even if Koreans are bolder, in the face of such fierce public opinion, they should at least stop and check. After all, if the ship really explodes, they will be the ones who suffer the worst fate. But at this most critical juncture, something unexpected happened... In the managers office of Geoje Shipyard. Yin Zhongxian was looking at the meeting minutes on the table in front of him with a burning head. ? In less than 10 days, LNG ships, an unpopular industry that had never been heard of before, almost became the hottest topic on the streets. At first, Samsung Offshore was suddenly sued by Torch Group. Actually, this incident did not surprise him, and it was nothing worth paying attention to. As the main finalist of the LNG design plan, Yin Zhongxian is very sure that his technical team has avoided all the sensitive points in the other partys patent. ??The remaining ones who are on the sidelines can easily be dealt with by concealing the truth. ?But before he could laugh at the opponent''s incompetent rage, the next combo followed. For a time, almost the whole world was filled with reports that the LNG ships in their shipyards might explode. The lethality of this kind of thing is still relatively large. Even Samsung Offshores stock price has been affected. Ordinarily, Samsung can actually sue Torch Group for maliciously spreading rumors and even manipulating the stock market. but You know your own affairs well. Most people think that Chang Haonans words Samsung Offshore Engineering has not fully understood the contents of our patents were meant to mock. However, Yin Zhongxian feels a little guilty about this... Manager Yin. ?Looking at Yin Zhongxian who lowered his head and remained silent, An Zhenze, the vice president of Samsung Offshore Engineering sitting opposite him, frowned: Can your technical department ensure the safety of these ships? Yin Zhongxian opened his mouth. He wanted to answer truthfully and said that I originally thought I could, but now I am a little unsure... ??But if this sentence is spoken, it obviously means that the career will go directly to the grave. ??Moreover, it is impossible for him to have a place in the entire Korean offshore industry...or even the entire world''s offshore industry. So, Yin Zhongxian finally nodded and said in as firm a tone as possible: "Can." For a while, the office fell into an eerie silence. ?Of course, Yin Zhongxian is not a fool. He knew very well that if something happened to these ships, it would not only be his career that would go to the grave. Therefore, after a moment of silence, Yin Zhongxian directly pushed 256: But President An, I think the key now is the Norwegian side. If they feel there is a risk, we should respect Party As opinion anyway..." ?In his opinion, the rumors outside have spread to what they are now, and Party A, no matter how determined it is, should not be able to sit still. ?As long as the Norwegian feels that it is not possible, whether he asks to cancel the order or to change the technical solution, he can save the situation by making the pan completely non-stick. In fact, this idea cannot be said to be wrong. If you are a normal Party A, you must consider stopping the project at this time and make long-term plans. ?But the problem is Party A this time is not normal. The focus of the Norwegians is not on these ships at all. Or rather, they were the happiest after learning that these ships may have fatal flaws. They came here for the liquidated damages from the beginning. ?This time, even small tricks are not necessary. So, Yin Zhongxian heard the answer that made his heart and lungs stop: Ive already asked about this. Party A means to fully believe in all our decisions and does not need to ask for their opinions, as long as the ship can be delivered on time. ?An Zhenze crossed his legs and stared at Yin Zhongxian with sharp eyes: So, Manager Yin. Let me confirm with you for the last time whether the safety of these ships can be guaranteed? (End of this chapter) Chapter 936 Take risks! Chapter 936 Taking risks! Yin Zhongxian suddenly felt like crying. ? He ??couldn''t understand why those **** Norwegians were so generous and gave themselves such trust at this time. But in short, the pot that he just smoothly threw away has now been bounced back smoothly. ?At the moment, there are two forked roads clearly before him: One, he was recruited from the real situation and then ended his career on the spot. Then the mortgage payment was cut off, his wife divorced, and he had to pay alimony for his ex-wife and children for the rest of his life in poverty. It is probably a matter of time before I go to jump into the Han River. Second, continue to hide it. This way you can temporarily save your job. ??But if these ships are indeed what the Torch Group said, there are major safety risks... ?Then in a few years, I wont even have to worry about jumping into the Han River Because someone will just put him in a sack and throw him down... "There are two roads in front of me, one is a dead end, and the other is also a dead end." Yin Zhongxian. ?However, considering that An Zhenze was closing in on him step by step at this moment, Yin Zhongxian knew that he had to choose no matter what. And you have to choose quickly "Can." Yin Zhongxian still nodded firmly and gave the same answer as before. I dont know whether it was to convince the other party or to convince himself. He even added: The Torch Group issued such an open letter just because we took advantage of the loopholes in the patent and became angry. As long as we insist that the property rights they claim have not been infringed, no court will be able to do anything to us. Obviously, that seems to be an either/or choice. But its not at all. Choose one, and youll end up in a dead end. Choose two, at least there is still room for buffering. After all, Samsung Offshore is not entirely a grassroots team. After obtaining the design plan from China, Yin Zhongxian also presided over simulation calculations and pilot tests. According to the results at that time, the sealing performance and strength margin were no problem. So, the possibility of Torch Groups bluff cannot be ruled out... "good!" After An Zhenze, who was opposite him, heard his answer, his slightly gloomy face instantly turned into a smile: Then just follow what you said, Manager Yin, and continue the construction! ?Looking at the corners of the other party''s raised lips, Yin Zhongxian''s heart sank. He instantly had a sense of calculated dj vu... A question also emerged in his mind ?The An Zhenze in front of me is the vice president of Samsung Offshore Engineering with a background as a technician. Even though I have been away from front-line business for nearly 20 years. but Do you really know nothing about the actual situation? ?Of course, this kind of question must not be asked out loud. ?Hence, after sending An Zhenze away, Yin Zhongxian locked the office door at the speed of light, and then dug out a mobile phone from the bottom drawer of his desk. He turned on the phone as quickly as possible and then called up the address book. There is only one number in it, and there is no contact name. Looking at the string of numbers on the screen, Yin Zhongxian hesitated with his fingers on the keyboard for a long time. Finally, he gritted his teeth and pressed the dial button From the alliance with GTT insiders to steal the technical plan of the Hudong plant to the decision to add a BOG reliquefaction system, such a series of big moves cannot be made by a small shipyard manager named Yin Zhongxian. There was naturally a high-level person behind him who instructed him to do this. Now, he needs to find the other party for help. The ringback tone rang for more than ten seconds. Until Yin Zhongxian felt a little guilty, the call was finally connected. Hello, Mr. Song, I am the manager of Geoje Shipyard, Yin Zhongxian. Even though there was no one in the office, he subconsciously lowered his voice. Manager Yin? After hearing his name, the other party was obviously stunned: Didnt I say before, dont contact me casually? Yes, yes, yes...I know. Yin Zhongxian quickly replied: "But hasn''t something happened recently...and there have been a lot of rumors?" So I would like to ask you whether we should continue to advance this project as usual or... On the other end of the phone was Song Minyong, one of the executive directors of Samsung Offshore Engineering. The matter of stealing and "borrowing" the BOG reliquefaction system design plan was originally what he secretly instructed Yin Zhongxian to do. Now that the incident may come to light, the latter will naturally want to ask about the attitude of the boss behind the scenes. More importantly, it is to test the intentions of the senior management of the group. ??If even Song Minyong thinks the risk is too great, then Yin Zhongxian will have to consider some special solutions. ?Such as the fire dragon burning the warehouse. ??Although he is inevitably jointly and severally liable as a shipyard manager, as long as personnel are evacuated in time, a simple production safety accident is better than one or even several LNG ships exploding. Why are you asking me this suddenly? Song Minyong did not directly respond to Yin Zhongxians most concerned question, but suddenly asked: Did other company executives put pressure on you? Yin Zhongxian subconsciously wanted to tell what happened when An Zhenze came over just now. But when the words came to his lips, he swallowed them back. ??The strong uneasiness just now enveloped my heart again. ?Although An Zhenzes rank is higher than that of Song Minyong, normally speaking, when the vice president takes people to the shipyard to inspect the status of key projects, it is impossible for the executive director in charge of this to not know at all... Obviously, whether Song Minyong really doesnt know or pretends not to know, it is not a good tendency. Therefore, almost in the blink of an eye, Yin Zhongxian changed his answer: Nothats not the case. Its just that many foreign media are reporting on the technical risks of our ships. Im a littleworried about Party As reaction. Party A has not changed any decision because of these rumors. ??This news about Song Minyong is comparable to An Zhenze just now. But the formers next sentence made Yin Zhongxian have to think more: Besides, havent you done simulation calculations and pilot testing before finalizing the design plan? Is there anything to worry about? The meaning of this sentence is a bit subtle. On the surface, there seems to be nothing wrong with it. But if we think about it from another angle. These two processes, including the final design plan, are all signed by Yin Zhongxians name. ?Now Song Minyong refuses to give any direct guarantee, but suddenly emphasizes the simulation and pilot test process. It is difficult to guarantee that he does not mean to pass the blame. Coupled with the fact that the other party didnt even know Vice President An Zhenzes todays itinerary... Yin Zhongxian suddenly felt as if he was involved in some kind of game between high-level officials. As for these problematic LNG ships ?Although there is a high probability that it is something other than the original plan, considering that the situation has been rumored for so many days, the senior management of the group came to pay attention to the matter. Could it be that they have reached a compromise internally? ?Thinking of this, Yin Zhongxian suddenly broke into a cold sweat on his back. ??If this scenario is true, then he will undoubtedly be treated as an outcast. What Commissioner Song said is...I am also worried, so I specially confirmed it with you..." Yin Zhongxian maintained his previous tone calmly, and hung up the phone after a few words. In this situation, it is doomed to have no future if you go to Song Minyong to make trouble. Previous communications between the two parties were conducted in private, and there is no documentary or recording evidence to prove that the other party instigated him... ?Under pressure, Yin Zhongxian''s mind became clearer. After rejecting one solution after another, he suddenly had a bold idea. Outrageous, but not completely unfeasible. ?He took a deep breath and pulled his office chair back in front of the computer. ? ?Immediately afterwards, I typed the website address of Torch Group in the address bar as quickly as possible. In the past few months, in order to collect information about the other party, he has already learned this by heart. ?However, this time, Yin Zhongxian was not trying to find any useful clues from it. "You are unkind, so don''t blame me for being unjust..." I saw him muttering as he tore off a piece of note paper from the side, and then copied several contact numbers in the corner of the home page. Immediately afterwards, I turned off the computer, got up and left the office quickly. (End of this chapter) Chapter 937 Drinking makes people cowardly Chapter 937 Drunk and cowardly About two hours later. Yin Zhongxian wore an inconspicuous semi-old windbreaker and appeared in front of a convenience store on the other side of the city on a bicycle. ?According to the plan just now, he should go in now, buy a bearer phone card with a short-term contract, and then immediately make calls to the numbers he had written down before. However, at this last moment, he hesitated a little On the one hand, this is absolutely a blatant crime. Although it may seem strange to consider these things under the current circumstances, as a scholar who has lived by the rules for half his life, Yin Zhongxian is actually used to being pushed forward by others in work and life. Previously, he didn''t think it was a big deal when he got emotional, but now that he calmed down, he still found it quite difficult to make such a "deviant" decision himself. ??Moreover, even putting aside the inner struggle, there is another, more practical problem. Once this step is taken, there is no turning back. ??If the deal is made rashly, the other party can make a verbal guarantee first, and then just throw him aside to die after getting the thing. Many spy-themed novels or movies are written this way. ??Will the Chinese do the same thing? ??Moreover, the phone numbers he copied from the website were all responsible for external liaison business. ?Hurry and call them by yourself, just say I have what you want... Others may not believe it either... Yin Zhongxian parked his bicycle on the side of the road, put his hand in his pocket, and gently twisted the note. ?After hesitating for a moment, he gritted his teeth and walked into the convenience store as planned. ?The store owner is a semi-bald man about 50 years old. He is leaning on a worn-out wooden chair, crossing his legs and concentrating on watching TV. I didnt even notice that there were customers entering the store. ?Of course, this will be a weekday afternoon, and indeed there will be very few people visiting. Yin Zhongxian did not immediately remind the other party, but came to the counter in silence. Stacks of phone cards were **** with rubber bands and neatly stacked in paper boxes. Buydont buybuydont buy Two voices lingered in Yin Zhongxian''s mind, making it difficult for him to make a final decision. Eh? ?At the same time, the boss finally realized that there was someone standing next to him and quickly stood up to greet the guest: Im sorry, I was so absorbed in watching TV that I didnt notice you, our guest. What do you want to buy? ??As he spoke, he walked across to Yin Zhongxian, opened the glass door behind the counter, and prepared to get something for the latter. "I" I dont know if it was because of dry mouth or hesitation, but in short, Yin Zhongxian just opened his mouth to say a word, and his voice got stuck in his throat. AhemI want to buy a bottle of water At the most critical moment, he retreated almost instinctively. Ohwhat brand do you want? Hearing that Yin Zhongxian said he was just buying a bottle of water, the boss suddenly felt a little discouraged. ?Compared to these fancy electronic gadgets on the counter, the profit from a bottle of water is simply negligible. NongxinNongxin is good. The store owner turned around and went to get him some water. Yin Zhongxian was also a little annoyed at his own weakness. He knew that if he walked out of here in despair today, he might not even be able to "walk into a convenience store" in the future. Just when Yin Zhongxian''s mind was like a blur, a voice that sounded familiar to him came from the TV next to him. The Geoje Shipyard, a subsidiary of our group, is still building these eight LNG ships according to the original plan. Any rumors that the Norwegian company is considering replacing Party B are false news..." Yin Zhongxian turned around suddenly and looked at the small TV set on the shelf next to him. That was a press conference. A press conference held by Samsung Offshore Engineering. The person sitting in front of the camera and talking eloquently at this time was none other than the executive director he had just contacted, Song Minyong. Here, your water. ?The store owner put a bottle of mineral water on the counter: 500 yuan. ?But Yin Zhongxian seemed not to hear it. He neither took water nor paid, but just stared blankly beside him. You are also paying attention to this news, right? ?The store owner has a good temper. He thought that the customer in front of him was a melon-eater like himself, so he immediately started chatting: "Let me tell you, these Chinese people really overestimate their capabilities. Our shipbuilding in South Korea is expected to surpass Japan next year and become the world''s number one. What technology do they have that is worth stealing for us to use?" ? ? Geoje City is one of the top shipbuilding industry cities in South Korea and even in the world. Therefore, it has become one of the regions with the highest per capita income in South Korea. ?As a local who has reaped enough dividends, the shop owner naturally has a very strong identification and confidence in the country''s shipbuilding industry. However, when hearing this sentence in Yin Zhongxians ears, it didnt feel right at all. Outsiders dont know the twists and turns, but he knows it clearly. Hey, young man. ?Seeing that Yin Zhongxian did not answer, the shop owner continued to show off his chatty nature: I see that your tanned skin is tanned... you also work in a shipyard, right? ?This sentence frightened Yin Zhongxian so much that he was immediately shocked. Oh...no, I am a house builder, project manager. ??While the two of them were chatting, the press conference on TV had already entered the next round of questions and answers. ?This time, the reporter had obviously prepared in advance. He used the structural fracture accident of the bulk carrier that occurred last year as an example and asked Samsung Offshore how to ensure the safety of the ship. "The bulk carrier you are talking about should be the Leader L built by Mitsubishi Shipyard in 1977." "I would like to ask this reporter to note that there are very obvious differences between the construction standards of bulk carriers and LNG ships, as well as shipbuilding technology in the 1970s and this century, and such comparisons cannot be made directly, not to mention, that ship The boat is still made in Japan. Song Minyong is by no means a fool. When faced with this kind of question, he still answered fluently, and he also stepped on another competitor by the way: In short, you can rest assured that the so-called BOG reliquefaction system infringement and safety hazards are completely slandered by competitors. They lost to us in fair competition, so they used this method..." In addition, the technologies used on these eight ships have been rigorously tested and certified by Geoje Shipyard. The relevant reports and all construction processes also have detailed review documents to ensure that there will be no problems that cannot be fulfilled..." Hearing this, the convenience store owner nodded with satisfaction: Look, Ill tell you. Our shipyard is still responsible... ??However, Yin Zhongxian next to him had his eyelids twitching, and he almost opened his mouth to criticize Song Minyong, an old dog, at the TV. Implementing responsibilities It can indeed be implemented. Its all in my head, right? For a time, the courage and impulse that had just been suppressed by cowardice resurfaced. Anger arises from the heart, evil comes from the courage. Thats right, boss. He almost squeezed out these two words from between his teeth: Give me another short-term bearer phone card and a small bottle of sake. ?Hearing this request, the convenience store owner suddenly smiled. He quickly lowered his head and took out a phone card from a pile: A ticket worth 7,500 yuan contains 5,000 phone credits. It cannot be recharged if it is used up...counting sake and water...the total is 10,000 yuan." Obviously, the profits here are quite generous, and there should be a lot of room for bargaining. But Yin Zhongxian no longer cared about that much, and paid directly without saying anything. ?The shop owner took a few banknotes and checked them carefully at the window, the smile on his face getting brighter. Then he took down a wine bottle and a disposable plastic cup from the shelf next to him: Young man, dont be so sad, come and have a drink... As the saying goes, drinking makes people timid. Yin Zhongxian didnt ask for the shop owners cup, but blew a bottle of sake directly into the mouth of the bottle. ?Then, with a little bit of alcohol, he found a secluded place and made the phone call that would affect the rest of his life... (End of this chapter) Chapter 938 Long-time spy? (4K) Chapter 938 Long-term spy? (4K) Later in the day. ?Song Jingming almost ran into Chang Haonan''s office. Chang Haonan, who had just sat in the office and was looking at the documents, raised his head and looked at the office director with a confused expression as if he had seen a ghost. Old Song Dynasty? He looked at the schedule next to him and confirmed that the other party did not have an appointment to meet with him today ?Chang Haonan himself didn''t care about these red tapes, but Song Jingming followed the rules every time and always called first before coming over. ?This time it seems a bit abrupt. "Mr. Chang, I''m sorry...this matter is too urgent. I didn''t get through when I called you just now, so I came directly." ?Song Jingming said and put the things he was carrying in front of Chang Haonan. ?The latter took a closer look and discovered that it was a tape recorder. "this" Just now, an international number starting with 82 called us. Song Jingming explained: The other party said that he was a technician from Samsung Offshore Geoje Shipyard, and he had enough evidence to prove that they directly copied part of our design plan during the design and construction of those LNG ships. "ah?" Hearing this somewhat outrageous news, Chang Haonans first reaction was... Don''t really believe it. Can you confirm the other partys identity? He asked with a frown. ?This kind of thing seems outrageous no matter how you hear it. ?Song Jingmings phone number is publicly listed on the groups website, and anyone can see it by clicking on it. ??Moreover, recent news related to the Torch Group has spread all over the world. ?There is no guarantee that someone is not playing a prank. Song Jingming did not answer, but directly pressed the play button on the radio. ??English with a strange accent came from inside. ??The content of the first call was similar to Song Jingming''s summary, which was that he had the evidence that the Torch Group needed most. If they wanted it, they should find someone who could walk the talk and contact him on time at 8 p.m. the next day. ?However, the call did not end immediately. The customer service staff at Huaxia also realized that the situation was serious, so they asked their colleagues to call Song Jingming. The latter asked customer service to continue to stabilize the other party, and then used this time to find relevant personnel from the technical department. Then, there was the following conversation "Sir, in order to prove that what you just said is true, we would like to ask you a few questions. Don''t worry, money and other resources are not a problem for us. As long as we can prove that your information is valuable, the rest will be Easy to say. You ask. ??The person on the other end of the phone answered very simply, and Chang Haonan even heard a bit of venting pleasure in it. Do you know who those LNG ships at Geoje Shipyard are built for? Of course I know, its Norways Hordaland Offshore Oil and Gas Equipment Company. Then the cargo tank technology of these ships is... "The cargo tank uses the Technigaz technology of the French GTT company. Compared with the Gas-Transport solution selected by the Hudong Shipyard... Strictly speaking, it was the Gas-Transport solution that we gave up that reduced the use of a layer of invar steel plates, so the volume of the cargo tank , weight and cost have great advantages. "Originally, we thought that we should be able to unify the LNG ship market for at least the next 10 years. However, your Torch Group came out and built a BOG re-liquefaction system that can recover almost 100% of the leaked natural gas. In terms of usage costs, it has suddenly reached a new level. Back to the advantage Speaking of technology, the other partys answer was fluent, and he also mentioned many details about the competition between Samsung and Hudong. ?Listening to this explosive recording, Chang Haonan immediately took a tactic back. Obviously, someone who knows so many things cannot be some boring kid who only plays pranks. At least the identity of the other person is definitely no problem, he is definitely an insider of Samsung Offshore Engineering. but Old Song, you said... ?Chang Haonan raised his hand to stop the recorder, and then motioned for the other party to sit opposite: Isnt this a bit too coincidental? One cannot blame Chang Haonan for being suspicious and seriously ill. They had just filed a lawsuit that they had no intention of winning, and evidence that could play a big role was sent to them without any warning. ?This is too smooth sailing. Actually...I felt suspicious at first. Song Jingming took a chair from the side and sat down, then said: But I thought for a long time on the way here. Even if this is a hole dug by Samsung Offshore Engineering for us, what are they planning? "If this lawsuit continues, there is a high probability that it will continue to be disputed and finally settled. The possibility of us winning is very slim. It can''t be for money, right?" ?With news like this, the maximum transaction price will not exceed US$1 million. ?This is of course a huge sum of money for an individual, but no one, whether Samsung Offshore or Torch Group, takes $1 million seriously. And, more importantly. If the other party really just wants money, then you can withdraw the amount today. Thenwhat do you mean? ?Chang Haonan looked at Song Jingming opposite. Soldiers will block it, water will cover it, and soil will cover it. Such a good opportunity cannot be let go in vain. The latter looked eager to try: Since the other party asked us to contact him tomorrow night, lets see what kind of medicine he sells in the gourd! Its just Mr. Chang, since we have to negotiate terms, and 80% of the terms are not just money, then you have to draw a range first. We cant just agree to whatever he says ? Chang Haonan took a deep breath, then played with the ballpoint pen in his hand and pondered for a moment: In this case, you still make the call. He reached out and knocked on the table for emphasis: But Ill go to your place tomorrow to hear what this guy has to say! ?Originally, Chang Haonan thought that this would be an extreme game of wits and courage against professional spies. To this end, he even entrusted Fu Youquan to help. He hired a psychologist and an interrogation expert from the Second Department of the General Staff Department to provide some basic training to Song Jingming, and stayed by the phone the whole time to advise the latter. In the end, everyone decided not to let the child go without trapping the wolf, and first produced a more detailed technical information to exaggerate the seriousness of the situation. Since this part is completely true, if the identity of the "shipyard technician" is true, his mentality should be somewhat shaken. ?Even if this person is really a bait set by Samsung Offshore Engineering, he can at least scare the other person. No loss whatsoever. After that, listen to the specific conditions the other party wants and how they want to conduct the transaction. ?If possible, try to trick the other party into sending over some of the evidence on hand to verify the authenticity. Finally, decide whether to trade with the other party and what kind of chips to pay. In short, it takes a few rounds. ?According to the experience of the two comrades from the Second Department of the General Staff, if the other party is really a technician who becomes a spy for the first time, his mentality will be very fragile. Whether it is too procrastinating or agreeing too quickly and decisively, it may cause the other party to be rebellious or suspicious, causing the transaction to fall through. So, after this round of process, about 7-10 days is most suitable. All in all, everything was ready within 24 hours. At 8 pm the next day, several people, plus a lot of monitoring equipment, crowded the already narrow telephone room. ?Song Jingming took a deep breath, then picked up the receiver and dialed the other party''s number. Hello, hello, I am the head of the business department of Torch Group... Song Jingming didn''t speak directly to the other party yesterday, so it was a new voice, and he could pretend to be any identity. So, everything went well. ?After exchanging a few words with the other party, Song Jingming began to strengthen the other party according to the technical documents prepared by Chang Haonan. However, the situation soon went beyond Chang Haonan''s...or rather, beyond everyone''s expectations. ??Before Song Jingming finished the first step, the opponent''s mentality had already collapsed. Actually, this is not difficult to understand. ??Yin Zhongxian''s previous entanglements, hesitations, and hesitations were all because he still had a sense of luck. It means that the risks that Chinese people call may not really exist. But today, the technical document that Song Jingming read out dispelled all his illusions ?Just like if you get a question wrong in the exam room, you will suddenly wake up when you get the answer when you get home. Yin Zhongxian finally realized what his problem was. ?Technigaz cargo tanks have limited pressure regulation capabilities. This is not a problem during normal transportation. However, after the BOG reliquefaction system is installed, the cargo tank is equivalent to being indirectly connected to the ship''s power system. Since the LNG flow direction cannot be controlled through rapid pressure change, the heat distribution of the entire ship will be slowly changed. ?Short-distance transportation is okay, but for long-distance transportation, it is difficult to guarantee what will happen... ?So, he revealed his identity almost with tears in his eyes, and said that he was now at the end of his rope, and that as long as it could help him escape from this disaster, he would do anything. ??The situation''s rapid decline stunned everyone present. Song Jingming tentatively asked Yin Zhongxian to send some of the evidence in his hand to prove that what the latter said was true. As a result, the speed of light in the latter agrees Not even until the next day. That evening, a strange email address sent several photos to the Torch Groups corporate email. ? is the first ten pages of the other partys LNG ship design document. Its just that its the unabridged version. The one with parameters and the whole design process. Is this thing... considered legal evidence? ?Chang Haonan looked at Hou Shunda next to him and asked. In his impression, if it is a criminal or civil lawsuit, evidence obtained through illegal means cannot be used. If we take it out, we may still have to argue. ?Hou Shunda replied: But if this Yin Zhongxian is allowed to appear in court as a witness, and then he submits this thing to the court, then there will definitely be no problem. With this kind of evidence, if we can still lose the lawsuit, Ill raise my head to see you! Well, Mr. Chang, why dont we just agree Song Jingming was obviously moved: Although we didnt really have any intention of winning at first, if we win At this point, his words stopped abruptly. "etc" It seems that even if we win, there will be no benefit to us? The Norwegians originally came here for liquidated damages. Now that you win the case, it is equivalent to ruining the order. ??Didnt it help Samsung Offshore Engineering in turn? ?Furthermore, if Party A goes back to the Hudong Factory, will you accept the order or not? So, I have a new idea. Chang Haonan said: We dont actually need to win this lawsuit. After hearing this, everyone else was shocked and acted like they were all ears: First of all, Manager Yin Zhongxian is scared now because he feels that Party A really wants to buy the ship, so he is worried that an accident may happen after the ship is delivered and he will be implicated. "But we know the tricks of those Norwegians. They will breach the contract before the ship is built, and then use it to trick the shipyard. Therefore, it is impossible for these ships to be launched in a short time, let alone Used. "yes" ?Song Jingming slapped his thigh: So this Yin Zhongxian actually doesnt have anything to worry about! But he doesnt know this yet, we can take advantage of this time difference. Chang Haonans speaking speed increased unconsciously: First stabilize Yin Zhongxian and tell him that we can prepare a new identity for him and a large sum of money so that he can take his wife and children to the Xian ethnic area of ??our country to start a new life after the Dongchuang incident. "But what he has in his hands is of no use to us now, so we need to exchange it for other information of sufficient weight before something happens, whether it is related to the Samsung Group, Korean shipbuilding, the Korean Navy, or even the stationed Anything related to South Korea and the US military is fine! Of course, we will not take advantage of him in vain, and will provide corresponding cash rewards based on the value of the intelligence. ? ? Geoje Shipyard is the largest shipyard in South Korea, and most of the combat ships of the South Korean Navy are built here. Some US military ships will also undergo small-scale repairs or maintenance here. As the manager of Geoje Shipyard, Yoon Jong-hyuns intelligence value is absolutely full. ??Even if possible, you can help him continue to climb higher and become a nail into the middle and upper classes in Korea. Butthose LNG ships will be completed sooner or later. Song Jingming asked: No matter who it is delivered to, isnt it still a huge safety hazard? Hey...we dont need to worry about this. ?Chang Haonan waved his hands nonchalantly: As long as those ships enter a long-term layoff, without the constraints of Party A, as the head of the shipyard, Yin Zhongxian, as long as he is not stupid, will definitely be able to turn those ships into scrap metal that is not suitable for continued construction. After the demolition is completed, it will be settled once and for all. Besides, to put it another way, even if it is really delivered, it will have to be many years later. We will get Yin Zhongxian out by then..." ??He has heard this routine a lot from Lao Wu. ?Scrap things that are obviously still usable, buy them at scrap prices, and then resell them as second-hand equipment, earning a huge price difference. Its just that Yin Zhongxian is just trying to protect himself. Also, after the Norwegians take action, wont we have no leverage against Yin Zhongxian? Someone asked in a low voice. So let him exchange it for other information! Chang Haonan replied: "As long as he trades with us once, it is equivalent to receiving a certificate of investment. The future matters are not up to him..." (End of this chapter) Chapter 939 Did I get the performance of Aegis? Chapter 939 Did I master the performance of Aegis? In short, Chang Haonan is definitely not a good person. Faced with such a favorable situation, we must try to squeeze the maximum value out of Yoon Jong-hyun. ?However, at least he is still a human being. So, as long as Yin Zhongxian shows his value, Chang Haonan will not throw him away after draining him. The promised escape route, that is, money and status, should be prepared as much as possible. ??Moreover, if Yin Zhongxian can pass the LNG ship level and lurk for a long time, then Chang Haonan can also provide some cooperation to help the other party climb to a higher position... Yin Zhongxian stood under a streetlight, and the conditions proposed by the other party were coming from the mobile phone receiver next to his ear. Actually, as he estimated yesterday. ? Once this thing starts, there is no turning back. ??The other party already has the phone recordings and email messages from the past two days. So, there is no option to refuse at all. ? And China has also made a clear commitment that as soon as the first batch of four LNG ships are delivered, he and his family will be given a new identity immediately. Dont be afraid even if something happens later. ??However, in less than three days, his identity changed from a shipyard manager to a spy for another country... Still left Yin Zhongxian a little at a loss. For Chang Haonan, this is also a quite novel experience. ?Spy. He has always heard about it. As a result, today, I actually have one in my hand. And the level is ridiculously high. Manager of Geoje Shipyard. Laughing to death. Who dares to believe it? You must know that Yin Zhongxian''s position alone can easily solve many problems. For example, the most basic, contact information. ? ? If he is an ordinary shipyard worker, even if he uses an anonymous phone card and a non-real-name email, he can easily arouse suspicion from others. But as the boss of the shipyard, Yin Zhongxian has a much higher degree of freedom. ?Let alone the phone and the Internet, even if he saves a radio station, as long as he doesn''t be too arrogant, few people will notice anything abnormal. There are also remunerations. An ordinary worker can easily recognize a windfall from heaven. ?Yin Zhongxian''s own economic conditions are acceptable, which is a very good cover. Considering that Koreans generally have the habit of excessive consumption, even if he buys some luxury cars and luxury goods, with this layer of identity protection, it will not appear too out of the ordinary. In short, the Holy Body of Innate Spies. ?Of course, Yin Zhongxians position is not just a commercial spy, so this matter still needs to be reported to Fu Youquan. ?However, he also specifically emphasized that the scope of knowledge must be as small as possible so as not to affect the security of this intelligence line. To this end, the Second Department, under the personal auspices of Luo Yudong, established a four-member "K Team" to cooperate with Chang Haonan to complete the liaison task with Yin Zhongxian. The reason why it is called Group K... Its because Yin Zhongxians code name is: Mr. K. It should be said that the effects of intelligence work are relatively immediate. Especially if your spy is already in a high position. Although Yun Zhongxian is definitely not as good as the Cambridge Five, regardless of his position or qualifications, he can be said to be a few words in Samsung Offshore Engineering and the entire Korean shipbuilding industry - There is no right to decide, but there is always the right to know. ?Hence, not even a week passed before the Chinese side received the first piece of information. Actually, Chang Haonans decision to develop Yin Zhongxian as an informant was actually a decision that was not very purposeful. In other words, there is no specific task that needs to be completed by the other party. So, when K team leader Zhong Hongyu reported the situation to Chang Haonan for the first time, the latter actually did not have high expectations. In his opinion, the most important function of this article is to vote for a certificate. It does not need to have any substantial benefits. However, Zhong Hongyus first sentence surprised Chang Haonan: Mr. Chang, Mr. K sent a destroyer bidding and procurement plan issued by the South Korean Navy. ?) ?Chang Haonan''s hand holding the tea cup remained still in mid-air. He didn''t expect that the greeting gift given by the other side was actually a piece of military intelligence. ?However, if this information is useful... ?That''s really of no use. At this time in 2001, South Koreas destroyer project. should be KDX3. This is the later King Sejong-class destroyer. ?Chang Haonan certainly knows this. ?Arleigh Burke on Zoom 1. Looking at this meeting in 2001, it was indeed quite advanced. But there are not many bright spots in the design. Let me take a look. ?Chang Haonan opened the lid of the cup and took a sip of water. Boom! With a muffled sound, a document about ten centimeters thick appeared on the desk. ?Chang Haonan almost spit out a mouthful of tea. Wait a minute Isnt it a bidding plan? ??He put the tea cup aside as he spoke, and then quickly began to check the contents of the intelligence. Unfortunately, they are all in Korean. Cant quite understand it. But logically speaking, the bidding documents are not specific design information, so there should not be so many. Speaking of it... we didnt quite believe it at first. Zhong Hongyu explained: The Korean destroyer project decided to use the US militarys combat system before the overall design to facilitate joint wartime command with the United States and Japan. Soin the bidding documents, a considerable part of it is about the Aegis systems hardware adaptation requirements, as well asspecific performance. For a moment, Chang Haonan felt a little dizzy. This cannot be called a surprise. It is simply justice from heaven Which version of Aegis? ?Chang Haonan''s tone was trembling. ?Zhong Hongyu didnt answer, he just pulled out part of the information. Although he does not understand Korean, he can still understand the characters of baseline7.1. Baseline 7.1 Its enough...its enough... ?Chang Haonan leaned back on the chair and murmured to himself. ?This version of the Aegis system was not installed on the U.S. Navy''s own destroyers for the first time until 2003. This time in 2001, that is, not long after the development was completed. ? And its technical documents, although incomplete, have already appeared on his desk. ?With the information at hand, it may not be possible to develop targeted electronic countermeasures technology. But at least it is enough to understand the upper and lower performance limits of this system, as well as the characteristics of the working mode. This is basically equivalent to pointing out a broad road for the development of China''s new generation of anti-ship weapons. And, it provides a strong reference for the development of future Chinese destroyer combat systems. You must know that the baseline7.1 that Koreans get is a complete version that has not been castrated. Having the ability to control land-attack cruise missiles. By the way, Chang Haonan also understood why, more than 20 years later, the US military was so distrustful of its allies ? Even if this had not happened in the previous life, Americans must have suffered big losses elsewhere... Thats outrageous He shook his head helplessly, but with a slight smile on his lips: Send it to Mr. Fu. Ill keep this thing for pricking my hands (End of this chapter) Chapter 940 No, he was stabbed in the back? Chapter 940: Wasnt it, stabbed in the back? This saucy operation of Samsung Offshore Engineering actually disrupted Chang Haonans originally planned schedule to a certain extent. ?Like this kind of potential public opinion risk, if the risk cannot be nipped in the cradle in advance, it will be difficult to solve it once it ferments. Hence, he spent the whole of late October running around on this matter. As a result, after finally settling this matter, another even more outrageous job was involved. In short, although Chang Haonan has left the follow-up processing of the Aegis baseline7.1 intelligence directly to Fu Youquan, just properly arranging the handover and liaison with Yin Zhongxian took up a lot of his time. ??However, there are two ends of the story. The impact of this emergency is not entirely negative. At least, Torch Groups popularity has increased by more than one level compared to the past. ? Taking advantage of this opportunity, Chang Haonan also asked the publicity department to concentrate their efforts to create a wave of momentum for the upcoming 2.0 version of TORCH Multiphysics. Especially in the field of computational fluid dynamics, which is currently the most stressful area Also due to the delay of Samsung Offshore Engineering, when competitor COMSOL released version 2.5 with huge performance improvements, Chang Haonan did not participate in the comprehensive testing of the software at the first time, and the technical department led by Wei Yongming is now working for Torch Group He was so busy with his own update plan that it was obviously impossible to spare too many manpower. ? In the end, I could only focus on the numerical calculation business department that Liu Hongbo was responsible for, and tried to do several projects with the new version of COMSOL Multiphysics, which was a simple way to understand the current development level of our friends. This resulted in the entire computational fluid dynamics circle being filled with COMSOL promotions and advertisements in the last few days of late September. ?Although Torch Groups current business volume and the number of reservations for TORC Multiphysics 2.0 have not been significantly affected by this, as a leader in the industry, it certainly cannot remain indifferent to this. ??When Liu Hongbo and Song Jingming found Chang Haonan together, the latter was in the computer room of the Torch Laboratory, optimizing the image segmentation and target tracking algorithms of the Ocean-1 satellite. In fact, "processing remote sensing data on the satellite side" is a technical issue that needs to be overcome urgently in the third decade of the 21st century. At the current level of aerospace-grade hardware in the early 21st century, it is impossible to complete a very complex calculation process. ??Although according to the wishes of the National Space Administration, this time we just need to make some sense and verify the technical feasibility. We can wait a few years for truly functional satellites. But Chang Haonan feels that there is not completely no room for maneuver. Because, Haiyang-1 is not an ordinary remote sensing satellite. The core payload on it is a marine surveillance system. Since it is ocean "surveillance", it is naturally impossible to watch everything. Instead, stare at something important. Therefore, in an image or a series of images taken by Ocean-1, there are only a few specific target areas that people are really interested in. So, a more realistic way of thinking is actually Complete the separation of images on the satellite side, extract the areas where targets may exist, and then transmit them to the ground for image recognition, positioning, and even understanding. ? In this way, spaceborne equipment does not need to bear too high computing intensity, but it can greatly reduce the amount of data transmitted from space to ground, as well as the workload of subsequent ground data processing. Kill two birds with one stone. It can not only complete technical verification tasks, but also allow Ocean One to perform some functions. Originally, this work was expected to start in the second half of October, but it was delayed for a while, so the progress was delayed by half a month. Fortunately, Chang Haonan''s schedule is already sufficiently advanced, so it will not affect the launch window of Haiyang-1. ?Liu Hongbo and Song Jingming saw that their boss was busy and did not dare to interrupt immediately. Instead, they waited until Chang Haonan looked up from behind the monitor. Mr. Chang. ?Song Jingming took two steps forward: We are here this time for the sake of COMSOL He was only halfway through his words when Chang Haonan raised his hand to stop him: Its not convenient to talk about this in the computer room, lets go up there and talk. After finishing speaking, he waited for a few seconds, and after confirming that the test data had been completely imported, he hit the Enter key. Then he took off his lab coat and returned to the office in the main building with his two subordinates. As usual, Chang Haonan still listens to technical issues first. "For this trial, a total of 9 people from our Numerical Computing Business Department were assigned to participate. However, one of them was assigned to an important calculation business midway through the trial, so it was not completed. Including myself, the evaluations of the other 8 people have been Sent to your email." Liu Hongbo has now fully adapted to the feeling of being a subordinate to Chang Haonan, and his title has become Mr. Chang as smoothly as silk. Dont ask, just ask and it smells really good. Chang Haonan also opened the office computer at this time, entered the mailbox skillfully, and immediately saw the email sent by Liu Hongbo. Located in the second position of your inbox. Attachment is a PDF file. The size is not large. Even at the Internet speed of 2001, it was downloaded very quickly. Chang Haonan quickly looked at the computing environment and project introductions mentioned in the eight people''s reports, and frowned slightly: These tests...are very mild..." ?What he has always wanted to know most is how the other party will solve the problem of high calculation weight in the calculation process of viscoelastic constitutive equations. Unfortunately, it was not included in these tests. Liu Hongbo also looked troubled at this time: Mr. Chang, our numerical calculation business department is not specialized in testing. We can only use it in the process of doing projects. First of all, most of the projects we have at hand are entrusted by companies and schools with insufficient level, so the difficulty is not high. Furthermore, the final calculation result is still responsible to Party A, so even if we encounter a more complex or difficult problem, we dont dare to try it with unfamiliar software..." Alas...thats the reason. ?Chang Haonan nodded slightly, and then looked at the more detailed evaluation content behind. It must be admitted that for these relatively common CFD processes, the computational efficiency and accuracy of COMSOL Multiphysics2.5 are very high. ?Especially when computer hardware performance is limited, it can even surpass TORCH Multiphysics in some projects. This is the first time this has happened in the past few years. Our opponents are also exerting their strength... Chang Haonan said with emotion. Old developed countries, if you push them hard, they can still come up with something. ? Seeing that Liu Hongbo had no intention of continuing the topic, Song Jingming took out a printed "Publicity Plan" from his briefcase: "Mr. Chang, the idea of ??the publicity department is that it is difficult to objectively reflect the efficiency of computing software through one or several data, and if we engage in Chunqiu calligraphy, it will be suspected of false propaganda, and in the long run it will damage our own brand. " Therefore, the next promotion in the CFD field should focus on other aspects. For example, compared with competitors whose main users are universities and research institutions, our software is more proven in the commercial field. We can focus on the participation of TORC Multiphysics. And products or projects with great influence. "For example, we have negotiated terms with Ferrari...not the Ferrari that makes machine tools, but the Ferrari that cooperates with us to develop racing cars. We will hold an end-of-season open day in December, and then we will design a car that contains elements of our company. Special racing livery to celebrate their fourth consecutive team championship. ?In this timeline, Ferrari won the constructors'' championship as early as 1998 and has never given up this honor to anyone since. The LOGO of Torch Group has been occupying the second most dazzling position on the side of its racing car in the past four years. Furthermore, Torch Group has also participated to a considerable extent in the research and development of racing cars in the past three years through the Jinling Research Center. In short, it is indeed an excellent promotional material. Chang Haonan is relatively relieved about the work handled by Song Jingming. ?Since he was transferred to the Aerospace Power Group, all non-technical daily work of Torch Group Technology has been presided over by the former. For more than two years, there has never been any major trouble. So, Chang Haonan felt a lot more relaxed after seeing this plan. Brand effect is generally a weapon used by European and American companies to suppress Chinese companies. But when it comes to numerical calculations, the situation is exactly the opposite. ??Torch Group is definitely a golden brand. ?Chang Haonan rubbed his swollen eyebrows with one hand and prepared to close the browser page with the other hand. ?However, at this moment, he suddenly remembered the email that was ranked above Liu Yongbo just now. According to the rules, that email should have been received a short time ago. ?So, he stopped and clicked into his inbox again. ?After taking a closer look, I discovered that the email actually came from Dassault. ??There are actually a lot of contacts between the two companies, but not many can openly use the email channel. In fact, there is only the Falcon Z business jet project... ? After clicking on it, as expected, it was a report on the design optimization of the Falcon Z business jet. It is not an important content. In fact, it is something that is sent in bulk to all responsible persons for backup. No need to even reply. ?Hence, Chang Haonan just pulled the email page to the bottom and had no intention of downloading the attachment. ?However, one file in the attachment list piqued his interest. Strictly speaking, it is the extension of this file. . ??cmph Chang Haonans eyelids twitched Since the .mph extension has been occupied by TORCHMultiphysics, the extension of COMSOLs similar products has to be set to .cmph in other words. He seems... Being stabbed in the back (End of this chapter) Chapter 941 Fighting with the air Chapter 941: Fighting with the air ?Of course, the idea of ??backstabbing is just Chang Haonan''s inner complaint. If you really want to say it out loud, it would be a bit of a fuss. ?Although Dassault has cooperated with Torch Group, it is also one of the important users of TORCH Multiphysics software, and even purchased a supercomputer specially launched by Sugon Group. But when it comes to numerical calculations, its just a relationship between manufacturers and customers. ?The two parties have not formed any form of business alliance, and the Falcon Z cooperative research and development agreement does not stipulate the form in which engineering documents must be submitted. Its just that this scenario of partners abandoning themselves and choosing similar products from friends is really too NTR. Therefore, Chang Haonan downloaded the project file. In fact, after a certain minor version, TORCMultiphysics is even compatible with opening and editing cmph files. At most, some exclusive functions of COMSOL Multiphysics will not be available. Soon, a wing that had been divided into grids appeared on Chang Haonan''s computer screen. Moreover, the details have already been included. ?If you zoom in, you can even see the flaperon model, as well as the winglets. Strictly speaking, it is a wingtip sail. ? It should be based on some designs of the Airbus A320. Of course this is normal. About aircraft design, especially civil aircraft design. Happy elements will soon spread from one place to another. Let me see what you are calculating... ?Chang Haonan began to further check some data contained in the project documents In 1997, when the first trial version of TORC Multiphysics was released, the only common and convenient storage media was a 3.5-inch floppy disk. ?In order to avoid the situation where the project file is so large that it needs to be divided into several disks for storage, Chang Haonan separated the editing and running log files from the project file. Later, this became a common practice in almost all numerical calculation software. As a result, the boomerang has now hit him in the head. ?In the absence of information, it took Chang Haonan about half an hour to figure out what Dassault engineers were studying. Simply put, they should be preparing to design a wing with extremely low drag in the transonic range. Since the low-thrust turbofan modified from the M88 core aircraft is full of power, as long as the resistance of the fuselage, especially the wings, reaches the standard, the aircraft can achieve economical performance at "quasi-sonic speed" of Mach 0.9 or even Mach 0.95. And quiet sailing. This means that compared with competitors currently on the market whose speeds are generally Mach 0.7-0.8, Falcon Z can save about 15% of flight time. ? It is obviously very attractive to the customer groups targeted by business jets. ??And its also a very good publicity stunt. ?However, it is impossible to make the wings of Falcon Z into delta wings or swept wings. To achieve excellent near-sonic performance on a generally straight wing, there is no future by optimizing the airfoil alone. Attention should also be paid to the details of the wing surface. This engineering document is to calculate the air flow near the airfoil. It sounds similar to the work that Chang Haonan did when he optimized the J-8C airfoil. ?But the level of finesse is much higher. After all, within the allowable range of the structure, fighter jets do not need to consider the noise and jitter caused by airflow. In fact, even considering the structure alone, a straight wing with a large aspect ratio is much more complicated than a delta wing. Therefore, judging from the content presented in this engineering document, Dassault engineers seem to be still in the relatively early stages of research. Switching to COMSOL Multiphysics is most likely based on the high computational efficiency advertised by it. Otherwise, there is a high probability that this airfoil will not be able to keep up with the Falcon Zs timetable. ?Of course, a passenger aircraft has a relatively simple structure. Many models (such as the MA60 of that year) even provide wings of different designs to customers as options. But it would definitely be better if it could be made standard as a starter. but Looking at the wing modeling on the screen, Chang Haonan gently placed a hand on his chin. There seems to be some problems with this calculation result? ?Before this incident happened at Samsung Offshore Engineering, Chang Haonan had been studying the solution to the problem of high calculation weight when solving the viscoelastic constitutive equation using the finite volume method out of interest. In fact, he has found a constitutive equation that does not involve diffusion terms, but he has not yet found a specific solution method. ?In that process, Chang Haonan used a large number of existing calculation examples to provide "learning materials" for the high-order data dimensionality reduction process. Therefore, although he himself cannot give numerical calculation results that are accurate to a certain number of digits like a computer, he still has some intuition about the characteristics, or trends, of the results. ??But the several sets of results calculated by Dassault were not in line with his intuition. Professor Liu. ?Chang Haonan raised his head and looked at Liu Hongbo, who was sitting on the sofa and had drank an unknown number of cups of tea. "Um?" The latter was bored at this time and was wondering whether to take the initiative to leave, when he heard the voice of his boss: Mr. Chang, you said. You have version 2.5 of COMSOL Multiphysics, right? Chang Haonan asked. "some." Liu Hongbo answered with some confusion. "That''s good." Chang Haonan said and returned his eyes to the screen, and then forwarded the email from Dassault to Liu Hongbo''s mailbox: I sent you an email containing a COMSOL Multiphysics project file. When you go back, open it with the latest version of their software. Dont change anything and just start the calculation from scratch. Although Liu Hongbo still didnt know what Chang Haonan wanted to do, he still nodded: Okay, Ill send you the results as soon as possible. However, Chang Haonan shook his head directly: Noit turns out I dont need it. You will extract the log of this calculation process when the time comes and send it to my email. Liu Hongbos movements are quite fast. ? Less than two days later, Chang Haonan received the log file he sent. Txt format. COMSOLM Multiphysics was released independently several years earlier than in history, so many software-level details are not good. For example, typically, logs are stored directly in txt format. ?Of course, for **** people like Chang Haonan who check logs with naked eyes, it is indeed a lot more convenient. And the results of the inspection also confirmed his guess two days ago. Its really fucked ?Chang Haonan leaned back in his chair and laughed and cursed to himself - ? Nearly two months ago, he began to think about how COMSOL would solve the problem of high calculation weight of the viscoelastic constitutive equation. And the result is Its not solved at all As can be seen from the log, the calculation process is to directly follow the general method and use the grid-centered FVM discretization method to numerically solve the N-S equation. Its just that the situations with these characteristics are indeed extreme and are actually not common. In particular, COMSOLs past regular customers were generally schools and small and medium-sized enterprises with limited strength and financial resources. even less common. Most of the new customers who started trying to use COMSOL Multiphysics after version 2.5 have not yet fully adapted to it. ?Just like Dassault, they have already begun to use it to do projects, but they are still in a state of exploration. I dont even know if there is a problem with the result. So, so far, the Swedes should not have received relevant feedback. In other words, they probably didnt know about the problem from beginning to end, or didnt think about it... And Chang Haonan has been battling with the air. Thinking of this, he shook his head with a wry smile, then opened a Word document and prepared to write a memo to inform Dassault of the situation. After all, Falcon Z is a joint development project. ??If something goes wrong in a big job like the wing, it will inevitably affect the progress of the entire project. By the way, we can justifiably let them use the computing tools of the past. ? ? Thanks to the fact that the finite volume method is not bound, TORCMultiphysics does not need to face the problem of high calculation weight when calculating the viscoelastic constitutive equation. The cost is that it consumes more computing resources. But no matter what, it is better than figuring out the problem in the end. As for the competitor COMSOL ?Chang Haonan already had a rather "evil" idea. (End of this chapter) Chapter 942 Crush your opponents in what they do best Chapter 942: Crush your opponents in the areas they are best at ?Chang Haonans idea did not come up just now. While preparing for the first issue of JCAS, Chang Haonan planned to wait for the release of TORCH Multiphysics 2.0 and start a numerical algorithm and computational science conference for the whole world while the iron is hot. The plan at that time was to put these two things together at the end of the year. But later the development plan for the new version of the software changed - simply put, the release date will be early next year, so the preparations for this conference have not yet begun. ?However, it was a blessing in disguise. ?This on the contrary means that the content of the meeting may be significantly modified. ?Thinking of this, Chang Haonan quickly called Song Jingming: Old Song, do you still remember the Numerical Algorithm and Computational Science Conference I mentioned before? After being connected, Chang Haonan got straight to the point and asked Song Jingming directly. Of course I remember. ?Song Jingming on the other end of the phone was busy communicating with Wei Yongming about the details of the new version of the software promotion. He immediately stopped what he was doing when he heard this question. When his boss suddenly asked about work, he naturally subconsciously thought that he was dissatisfied with the progress, so he quickly explained: "However, this meeting is scheduled to be held in March next year, so formal preparations have not started yet. I just asked two comrades in the office to pay attention to how other meetings of similar nature are held as a reference, and plan to start again at the end of the year. Make a formal planning plan. ?However, Chang Haonan obviously did not mean this: Its a good thing not to have started. He replied: "I am considering whether our company can sponsor a numerical computing competition for universities around the world before each conference on numerical algorithms and computing science. This competition is limited to students, and we can consider including undergraduates and graduate students. Separately, the winners can be given some bonuses, and then an award ceremony will be held at the conference later. "Given the current influence of our company, there should be quite a few experts and well-known large companies attending this conference, so for students, this is a good opportunity to show their faces, whether they are preparing for work or continuing their studies in the future. , it should be very attractive. You mean...something like the International Olympics? Song Jingming is not a technical person, and he did not participate in these competitive activities when he was a student, so he directly benchmarked against the most famous one. Its notuhit could be ??This thing that has not even been written in horoscopes was directly brought up to compete with the International Olympiad, and it was directly treated by Chang Haonan, which made Chang Haonan feel a little unsure: It can be similar in form, but dont make this kind of analogy casually, especially in public... Random comparisons are only harmful to publicity. For companies, the purpose of holding competitions and holding academic conferences is similar. Exchanging academic knowledge is only secondary, the focus is still on promoting oneself. It''s just that the two target different objects. Although there are also students attending the academic conference, the leading role must still be played by the big guys. Thats why Chang Haonan just said that participants in the computing competition will be limited to students. Even the instructor cannot take care of them. "All right" ?Song Jingming did not continue to struggle with his lack of concepts: In this case, in addition to increasing the visibility of our company, maybe we can also directly identify TORCH Multiphysics as the official designated software of the competition, so that participants can intuitively feel the performance advantages of our software? "No." Chang Haonan decisively rejected Song Jingmings proposal: Since the competition is already named and sponsored by our company, if we still have to specify the competition tools, it will only make others think that we are excluding dissidents, and I am afraid that the results have already been predetermined. "Furthermore, numerical calculation tools cannot be learned in three or two days. If a certain school or a certain research group is already accustomed to using other software, and we limit the competition tools, then they may not learn it from the beginning. I wont sign up to participate, which makes it more difficult to promote the competition. "So, why not let go of this aspect completely, let the demons dance, and let the results speak for themselves in the end. If there is a really powerful person, he will just write the calculation program from scratch without using any tools, and finally win everyone else. Then we will be even happier! Hearing this, Wei Yongming, who had been sitting opposite Song Jingming, couldn''t help but roll his eyes - Write a program from scratch, and then use the tools we developed over several years. Who are you looking down on? If this really happens, I''m afraid I''ll have to ask Mr. Chang to participate in the competition yourself... ?However, Song Jingming, who answered the phone, immediately understood what Chang Haonan meant and asked immediately: "Mr. Chang, as for the topic of the competition...for the sake of safety, for this first competition, would you consider setting an area that is more beneficial to us?" People teach others, but a hundred words are useless; things teach people, but once they come to their hearts. In competitive sports, food is the original sin. No matter what the competing products are promoted, if they cant compare, they cant. Of course, this is also a kind of pressure for Torch Group. ??If you are blown up in your own game, you will be embarrassed and sent to your grandma''s house. "certainly." Chang Haonan nodded: Numerical calculation problems will consume a lot of time in the computer running process, so the competition should not include too many questions. "In my opinion, the competition can have only one question, or a choice of two. We can first determine the focus area of ??this competition a few months before the start of the competition each year, and the questions must come from this area. " A few months in advance Song Jingming subconsciously glanced at the calendar on the table: Then if the competition is held next year, we will have to start preparing for publicity immediately. Thats easy to say. Chang Haonan replied: For the first competition, I will come up with the questions myself. As for the nature of the topic ?He stretched out **** and tapped the table lightly: Its better than computational fluid dynamics! The first part is quite reasonable. But the last sentence was completely beyond the expectations of Song Jingming and Wei Yongming. "Um?" Song Jingming, who was picking up a ballpoint pen and lowering his head to take notes, was immediately stunned: Computational Fluid Dynamics Didnt I say that COMSOLs new version has obvious improvements in this aspect and may have more advantages than our software... Should we consider avoiding its edge? On the contrary. ?Chang Haonan had a smile on his face: Whether they are participating in competitions or conferences, they are all industry insiders and can understand what the topics are about. COMSOL is now launching a full-scale public opinion offensive against us in the CFD field. If we choose to avoid its edge at this juncture, it will be equivalent to admitting their advantages and becoming an advertisement for the other party. So, we have to do the opposite, take the CFD problem as a competition question, and kill our opponents in the areas they are best at! At this time, Wei Yongming, who had been listening opposite Song Jingming, could not sit still. He leaned slightly closer to the microphone and said: "Mr. Chang, this is Wei Yongming from the Technology Department. I have been tested by Professor Liu from the Numerical Computing Business Department before. This new version of COMSOL does have something to offer. If we were to go head-to-head in the CFD field, the final result... would probably be very random. big." Chang Haonan was not too surprised when the third person''s voice appeared on the phone - after all, Song Jingming was in charge of the daily work of the group, and everyone would go there often. ? And this call does not involve any secrets, so there is no need to ask the person out before answering it. Dont worry, Old Wei. He opened his mouth to comfort and said: I have seen the test results from the Numerical Computing Business Department, and they are not very complete. Just in time, I came across a project in the past two days, so I tested it myself. ??Chan Haonan was only halfway through speaking when Wei Yongming on the other end of the phone almost stared out of his eyes. Software testing is a job with a workload no less than that of software development. Chang Haonan said that he tested it "in the past two days" "easily", which is a bit exaggerated. And whats even more exaggerated is, listen to what that means It seems that there is really a problem with the test? Sure enough, Chang Haonan continued the next moment: In short, I found that their new version of the software would have problems with calculation divergence and even software crashes when dealing with a certain class of specific problems. At that time, as long as the topic is selected in this major category, COMSOL can have problems under the spotlight..." Chang Haonan has no doubt that when the news of his competition is announced, COMSOL, which is rushing to seize the CDF user market, will definitely take the initiative to sponsor several school teams and let them participate in the competition to create a spectacle. However, when they actually come, they will find out... Someone''s place was indeed damaged. But its definitely not from Torch Group (End of this chapter) Chapter 943 You cant just leave everything to the Chinese, right? (4K) Chapter 943 You cant just leave everything to the Chinese, right? (4K) At the same time, Chang Haonan was digging holes for his competitors. France, Paris. His partners are also getting into trouble at this time. ?In a conference room of the Dassault Group, several engineers were reporting to Serge Dassault and Charles Edelsteiner on the development progress of various components of the Falcon Z business jet as usual - Although the project is considered a joint development between four companies, after all, Dassault is responsible for the overall planning and design of the aircraft, so in terms of specific work, they do occupy a position similar to a domestic "original engine factory". The first person to speak was a technician responsible for liaison with Snecma Group: "Currently, Snecma and China Aerospace Power Group have officially determined the research and development schedule. The new engine series will be named SeA. According to different thrusts, there are currently three basic models: SeA350, SeA500 and SeA650. In the future On this basis, the thrust can be further subdivided. Are the three models... developed in parallel? ? Ed Steiner expressed concern. ?In his plan, Falcon Z should be a short and fast project that will make its first flight within two years, so it should not spread too much. Fortunately, the other party shook his head: No, priority is given to the SeA650 with the highest thrust, which is the model with a thrust of 6.5 tons. It is used to adapt to the Z9 solution, which is the largest in our Falcon Z project. ?Ed Steiner finally felt relieved. The Z9 solution is the largest model in the entire series of products, and it is also the model he plans to launch first. The maximum takeoff weight of the 40-ton class is even close to that of Chinas C808 regional passenger aircraft. As a business jet, it is an absolute giant. Correspondingly, its range has reached more than 12,000 kilometers, meeting all requirements for transoceanic flights. You can even take off from Paris and reach the West Coast of the United States directly without refueling. ?Of course, in actual operation, few people actually need to carry out such an exaggerated flight. But in order to compete with its dominant competitors, mainly Bombardier and Gulfstream, Dassault must create a benchmark product. Just like the reason why Airbus must develop the A380. I dont have to sell it, but I cant live without it. But use the core engine of the M88 to remove the afterburner and build a 6.5-ton civilian engine Dassault, who was sitting at the head of the conference table, held the half-smoked cigar in his hand and asked: Can this development progress really match ours? Cant blame Dassault for having such concerns. As the saying goes, once bitten by a snake, you will be afraid of well ropes for ten years. The lesson of the M88 engine that almost killed the Rafale is still vivid in our minds, and it is really hard not to think in a bad direction. ??The technician who just reported did not answer immediately, but pondered for a moment. ?The main problem with Dassault... Its hard to answer. ??He is only responsible for liaison, and is not an engine designer. Naturally, he cannot guarantee other people''s work. But as a worker, you must consider the concerns of your boss... So, after pondering for a moment, he chose to explain from the side: I heard that in order to ensure the progress of the research and development, the team leader of China rejected Snecmas request to participate in the research and development of the hot end, and only let them participate in the design of the fan and casing... The meaning is obvious. ?You cant trust Snecma who tricked Rafale, but you can trust the one who rescued Rafale, right? However, this person also has only a partial understanding of the situation. Because the person who vetoed Snecmas request was actually not Liu Yongquan. Its Chang Haonan Although he had not directly cooperated with the French in his previous life, he had read a lot of relevant information. To sum up, the French are not good at hot-end R&D. The SAM146 engine jointly developed by France and Russia has a hot-end design defect that results in the actual overhaul interval being only half or even one-third of the expected index, and there are also hidden dangers in reliability. Having experienced this kind of before and after, Chang Haonan was naturally worried about letting Snecma get involved too deeply. Fortunately, some minor errors and omissions will not affect the persuasiveness of this explanation. ? Dassault did not continue to ask, just nodded, and then picked up the cigar again. Seeing that the topic about engines came to an end, Ed Steiner took over the conversation again and gestured towards the other side of the conference table: Braudy, tell me about the avionics system. ??The engineer known as Brody pushed up his glasses, then sat up straight and replied: Thales Group has been one of the major hardware suppliers of passenger aircraft avionics and flight control systems in the past, so there are no obstacles in this regard, and most of the hardware has even been readily available on the shelves. "So, all their energy is currently focused on the development of the underlying software program. Our company has a technical team of about 50 people who are cooperating with Thales. Although there is no actual progress yet, it has been used An old Falcon 900 flight simulator has been used as a test platform, and the first version is planned to be tested by March next year. ? ?After listening to a full round of reports, Ed Steiner took a long breath and leaned back in his chair relaxedly: It seems that our partners can keep up with our preset timetable and achieve the first flight of Falcon Z before 2004. Then, we will follow the original plan... Just when Ed Steiner was completely relieved and ready to roll up his sleeves and go to work, a slightly rich voice suddenly interrupted his talk: "Wait a moment" ?Ed Steiner had to stop. ?Looking towards the source of the sound, he noticed that the person who had just spoken was Didier Casore. Head of Dassault Aerodynamics Department. Dr. Casore, do you have a question? "Yes." ?Kasore nodded and opened the notebook in front of him helplessly: The wingthe new high-speed wing planned for use on the Falcon Z There were someprobably serious problems with the development process. In just one sentence, a little sweat started to flow on Kasore''s forehead. Because before he could finish speaking, the atmosphere in the conference room became anxious. ?Especially Ed Steiner, who looked confident just now. He has been worried before that whether several important subsystems of the aircraft will delay the development process of the entire aircraft. So, after listening to the reports from other groups of liaison personnel just now, I feel a sense of relief. ?However, before he could be happy for too long, he discovered... The command was as fierce as a tiger, but in the end, it was myself who had the problem... This is rather embarrassing. ??Everyone in the conference room either lowered their head or raised their head, always looking away from Ed Steiner, whose face turned red and white. On the other hand, Dassault next to him behaved quite normally. After all, it wasnt him who was embarrassed. As for the question itself ?Dassault doesnt think that a project that has only been officially started for more than two months can cause any huge chaos. If its great, just reset it to zero and start over. ?So, instead of Ed Steiner, he asked: Dont worry, lets talk about the specific situation and are there any possible solutions? ??Casore was taking out a handkerchief to wipe his sweat at this time. When he heard the boss''s question, he quickly replied: A few days ago, as usual, we sent the engineering documents related to the new wing design to the responsible personnel of each partner for backup. "Originally, this was just a normal operation that was carried out every week. But about two days later, someone suddenly responded to us with an urgent email, saying that there were errors in the modeling and design calculations we completed using the new method. Detailed verification methods are also provided. "Then" "Then we tested it according to what he said and found...there was indeed a problem..." There was a violent oscillation during the calculation process. Although there was no divergence in the end, the reliability and accuracy of the results may not be guaranteed..." After listening to this description, Ed Steiner suddenly felt dizzy. The design of the aircraft must be carried out in a wind tunnel before it is actually implemented. ??The basis of his plan to race against time is to use a high degree of completion of the initial design to compress the time for trial and error in the wind tunnel. But if the calculation accuracy of the design process cannot be guaranteed... Let alone compression, it may directly lead to the design direction being deviated. On the contrary, it is better to just rely on experience and try slowly. Is there a solution? He asked quickly. The development cycle we submitted before was estimated based on the premise that the new algorithm is feasible...but now there is a problem with the entire numerical calculation tool, so it may be difficult for us alone...to solve it in a short time. ?Kasore felt like he was going numb. Who would dare to think that COMSOL would directly release software that lacks some functions without any reminder before calculation? He forced himself to take a deep breath, barely managed to stabilize his mind, and then continued: At present, the safest way is to switch back to the old airfoil of traditional design, but the cruising speed will be reduced to a level similar to competitors...about 900km/h, and the range will also be reduced by about 3%. Of course we can also change the calculation tools and methods and start from scratch to design a new wing, but the schedule... will be affected by at least 4-6 months. ?Ed Steiner had no choice for a while. Applying the more radical new COMSOL software to the wing design was approved by him. Now that there is a problem with the radical movement, at least we cannot put all the blame on our own subordinates. He is not British. Cant it be faster? ?Ed Steiner still held on to the last glimmer of hope. High speed is an important publicity stunt in his plan, especially now that the Concorde is about to retire. A business jet that is close to the speed of sound, but has the same fuel economy and noise as other aircraft. It will definitely capture the attention of target customers. It would be a pity if it were gone. Its difficult. Casore shook his head: Actually, one thing I have always wanted to complain about is that the adaptation between our own CATIA and Torch Groups TORCH Multiphysics is not done well, so we have to spend a lot of time on model correction and reconstruction every time. I switched to COMSOL for the first time because they are directly compatible with our project files..." "In short, if the task must be completed according to the original timetable, then I am afraid that the entire airfoil calculation work must be handed over to Torch Group itself. Their numerical calculation business department should have engineers with the most experience in calculations at present, and use it with our brand-new Supercomputer hardware will increase efficiency a lot..." ?Hearing this suggestion, Ed Steiner couldnt help but hesitate: But this is one of the most important tasks in aircraft design... If you find someone else to do it, relying on suppliers will definitely not work..." If we add a partner, we have to get the consent of three other companies, and Torch Group is just a software developer, so it doesnt know anything about wing design Actually it might not be that troublesome. Casore suddenly spoke again: Although Torch Group is a software and computing services company on the surface, I checked its background before and found that it is actually our partner, a wholly-owned subsidiary of China Aerospace Power Group In 2001, the ownership structure of unlisted companies was not actually that easy to check. Furthermore, Torch Group was only transferred to the Aviation Power Group later. ?Hence, Kasore obviously did a lot of homework to find this kind of news. Is there such a thing? ?Ed Steiner was also a little shocked. However, Casores next words are even more striking: And I also found out that the general manager of the Torch Group and the person in charge of our Falcon Z project at the Aerospace Power Group they They are...the same person. For a time, the entire conference room fell silent. That is to say After a long time, Brody, who had just reported, broke the silence: The email you sent for backup was actually sent to the developer of TORC Multiphysics himself? It should be like this Kasore nodded: In other words, luckily it was given to him. If we had not discovered this calculation problem in advance, but had waited until we started blowing the wind tunnel to realize that something was wrong, it would not have been as simple as delaying the progress for several months..." And Brody also followed up and said: If it were him, maybe he could really complete the design plan within the original time. Everyones eyes turned to Ed Steiner. As the overall person in charge of the Falcon Z project, his opinion is crucial at this time. And Ed Steiner is also having a war between heaven and man in his heart ?On the one hand, he feels that Falcon Z is ultimately a French project, and we cannot leave everything to the Chinese. But on the other hand, if you want to maintain the original development progress, there seems to be no other option. If other subsystems have been developed by then, let''s stop and wait for Dassault''s overall design... Seems even more shameful. Anyway. In the end, it was Dassault who helped Ed Steiner out: As Dr. Casore said just now, if we plan to improve the compatibility between CATIA and TORCH Multiphysics in the future, we will have to cooperate with each other sooner or later. So this time... lets treat it as a way to get closer in advance! (End of this chapter) Chapter 944 The last strategic bomber (counting yesterday) Chapter 944 The Last Strategic Bomber (Counting Yesterday) At about the same time these two things happened. Ermao, Kiev Oblast, Priluki Air Base. A Tu 154M passenger plane with the five-star red flag painted on the vertical tail is decelerating and taxiing with the thrust reverser turned on. Due to age and disrepair, the runway is slightly uneven, and some fragile places have even cracked. Fortunately, for a passenger aircraft that was originally designed with tactical use in mind, all this is not a problem. As the speed of the aircraft continues to slow down, the two pilots can gradually devote some energy to observing both sides of the runway to find the location of the taxiway Normally, this should be what the tower tells them. ??However, the tower commander at Preluki Air Force Base obviously had little experience, and coupled with his gross English accent, there were a lot of troubles just in the process of directing the plane to land. Fortunately, the airspace near here is extremely clean and there are no other aircraft. So there wont be any safety issues. It''s just a pity for the passengers who are almost packed into cans of meat in the cargo (passenger) cabin. Im telling you, Lao Zheng, why does the air traffic control at Ermao base seem completely unreliable? On the seat in the front section of the cabin, Qin Han, the special representative for cooperation with Eastern European countries accompanying this visit, rubbed his head that was a little dizzy due to the violent shaking, and asked an officer in an air force uniform next to him. "no way." Zheng Xiashen, who was in charge of the entire airport pick-up task, picked up the big-brimmed hat that had just fallen to the ground, shook his head helplessly, and pointed to the outside of the porthole with his hand: Look at the environment around the runway. I conservatively estimate that this airport has not seen frequent takeoffs and landings for five or six years. Priluki Air Base is located in a somewhat remote place near Kiev. During the Cold War, this was the home of the 184th Heavy Bomber Aviation Regiment, which existed as the most important force to deter NATO. But now, with the 184th Regiment itself facing disbandment, naturally not many planes will visit here anymore. The equipment of the 184th Regiment itself only takes off every very long time. The purpose of taking off is not for training or mission execution, but to ensure the basic operation of these aircraft as a bargaining chip with other countries. So, the person sitting in the tower now may not have directed 10 aircraft takeoffs and landings in his entire career. Naturally, I dont have any experience. While the two were talking, Figure 154M had entered the taxiway to the right and was slowly driving towards the apron not far away. Tsk tsk tsk ??Qin Han poked his head slightly and looked at the two dozen strategic bombers lined up on the tarmac. The closest ones are the ones with four propellers, Figure 95. A little further away, the ultimate purpose of their coming this time stood Fig. 160. Even though he was not a soldier, he had some relevant knowledge before participating in this mission and was able to recognize these famous models at that time. Its really hard for such a good airplane to be left here to rust For a moment, Qin Han didn''t even know how to describe his feeling at this time. Finally, he still choked out a few words: What a pity "yes" Zheng Xiashen sighed softly: Who would have thought that a country that could build 70,000 nuclear bombs and have been at tit-for-tat with the Americans for nearly half a century would suddenly fall apart..." As a soldier, although he gave an affirmative answer, his tone was more filled with emotion. When faced with an enemy from within, no matter how powerful the army is, it will be difficult to play any role. Qin Han realized that it was not easy to continue this topic, so he changed the topic and swallowed what he had just said: However, its not entirely a pity. "After all, it is precisely because of this that we have the opportunity to stand here today..." Actually... Representative Qin doesnt know something. ?Zheng Xiashen smiled slightly: "It should be...about six years ago. I also led a team here, but it was not as desolate as it is now. You can still see a few planes taking off and landing occasionally." Hearing this, Qin Han''s eyes widened slightly: Have you been here before? Yes, and I am also sitting on this plane 154 Is it also for those planes? ??Qin Han stretched out his hand and gestured out the window. At this time, the plane happened to be parked at the designated location on the apron. The cabin announcement sounded the message to prepare to leave the plane. Yes, but it got messed up halfway through. ?Zheng Xiashen stood up and tidied up his military appearance: At that time, I thought that the Chinese Air Force would never miss these precious guys. I didnt expect that I would have a second chance now! Due to excitement, his voice trembled a little when he spoke. We were lucky enough to catch up. Qin Han also followed Zheng Xiashen to the aisle, preparing to get off the plane. ?The two of them are the leaders of this Chinese delegation, but one is simply responsible for picking up the people at the airport, and the other is also responsible for many subsequent written procedures. After all, the delivery of these Tu-160s was completed as part of the Ermao denuclearization process. This is something that must never be taken carelessly. ?It wasnt until a few minutes after the plane came to a stop that a ramp truck hurried over and docked at the cabin door. Soon, the hatch opened. ?A group of dozens of people, headed by Zheng Xiashen and Qin Han, filed down the gangway. Not far from the plane, there were already several soldiers wearing various military uniforms, obviously from different countries, waiting for them. ?Although ten years have passed since the disintegration of the Soviet Union, the military uniforms of Da Mao and Er Mao are still relatively similar in shape. Sometimes it is easier to distinguish by accessories and color. As for those wearing uniforms of a completely different style, it is not difficult to tell from the U.S. symbols on their collars that they are mid- to senior-level officers from the U.S. Army. Thats right, although the transaction subjects involved are aircraft belonging to Ermao. However, the main trading countries do not include Ermao itself. The other two countries naturally brought a delegation each, but their planes landed a few hours earlier than China, so the rest of the people had already gone to live in Kiev. Only a few key people are left waiting here. Hello, friends from China. The leader, a burly soldier with a tricolor flag embroidered on his left arm, walked up to Zheng Xiashen. Both parties salute at the same time: I am Anatoly Alexeevich Noevich, responsible for the arms transfer and destruction. Mark Linton. Another American soldier also came forward: Assistant to the U.S. Strategic Command, responsible for overseeing the arms transfer and destruction. ??Although he is said to be an "assistant", he actually carries three stars on his shoulders, and he is on the same level as Nogovitch and Zheng Xiashen. In response, Zheng Xiashen and Qin Han also introduced their identities respectively. Okay, guys, lets relax. Jack Linton spoke first, trying to liven up the atmosphere: According to the previous agreement we reached, the formal documents cannot be signed until next week, so during this period, we will mainly finalize the details of this mission. "Er Mao has prepared a fleet of vehicles. We can go back to the city to rest for a while..." ??He has been waiting in the biting autumn wind for several hours. It is obvious that he cannot stay any longer and wants to return to the warmth of the hotel room. Still not. ?Zheng Xiashen raised his hand slightly, indicating that he had other plans: We still hope to learn about the status of these pending weapons as soon as possible, especially the four Tu-160 bombers planned to be delivered to our country in the name of debt repayment, so we will not go there with you for the time being. Although the Chinese side sent a small team here about half a month ago to confirm and maintain the status of several aircraft, they also protected them from possible damage. ??However, the matter was serious, and it was still difficult for Zheng Xiashen to feel relieved until he personally confirmed that the plane was intact. "Oh well." ?The other two people didnt have any opinions on this either: Anyway, I wish you and we wish you all the best. ??After being polite with the heads of delegations from the other two countries, Zheng Xiashen used the fastest speed to find Lieutenant Colonel Hang Lijun who was posted here in advance Strictly speaking, it was the latter who found him. ?In fact, the other party had been notified long ago to come to pick up the plane, but there were senior foreign military leaders there just now, so it was inconvenient to rush over here. Welcome Deputy Commander Zheng ?Hang Lijun stood at attention and saluted. He was originally going to say a few formulaic words, but as soon as he said a title, he was interrupted by Zheng Xiashen: Okay, well deal with the red tape later. Whats going on with those planes? ?Just now it was too obvious that he didn''t want to show off in front of the foreign army, but in fact, he has been coveting it for a long time. ?Even before this trip, he seemed to have submitted an application to his superiors, asking if he could personally fly one of the Tu-160s back to China. As a result, I was severely criticized. You can only live with your eyesight. Following the guidance of the ground crew here and several Tupolev technicians, we conducted a round of screening of the aircraft. ?Hang Lijun didnt talk nonsense and immediately took Zheng Xiashen to the other side of the tarmac while reporting the report: Three of them are currently flying normally, and the core system of the other one has no problem, but there is some malfunction in the action part of the variable sweep wing, and the sweep angle of the left wing can only be maintained at the fully extended 20 state. This aircraft can be repaired here by disassembling other aircraft parts before flying back, but it may take about a month. You can also fly back like this first and figure out a solution later. And Zheng Xiashen almost did not hesitate: The night is long and the dream is many, 20 is 20. Anyway, we are just transitioning, and we are not engaging in supersonic penetration, So, of course, fly back first! (End of this chapter) Chapter 945 Take out the secret weapon and use it Chapter 945: Take out the secret weapon and use it ?Just two days later, a cooperation invitation letter signed by Serge Dassault was sent to Torch Group. The content...is naturally about the design method of the high-speed airfoil part in the Falcon Z design plan. ??And not even as a supplier. Rather, it simply and crudely increased the Torch Group, which is actually the Aerodynamic Groups share of the entire project. In other words, every time an aircraft is sold in the future, more money can be shared from the profits. And, correspondingly, they will have more say. Basically its all a benefit with no harm at all. ?However, the Aviation Power Group is a central enterprise after all. According to the usual practice, this kind of matter still needs to be decided after collective discussion. Of course, it is said to be a discussion, but there is almost no suspense about the outcome. Its nothing more than a voting process and finally getting General Manager Zhu Linyu to sign. So there was no special meeting at the group level for this matter, but it was placed directly after a regular organizational meeting on Friday afternoon. Comrade Haonan, I dont have any opinion on the decision-making of this matter, I just have a question that I am just curious about ?After taking less than two minutes to complete the vote, he may have felt that it was unreasonable to end the meeting so quickly. In short, Zhu Linyu did not immediately announce the adjournment of the meeting. ?So, Deng Shiyou, one of the deputy general managers, took this opportunity to ask: This wing design should be part of the aerodynamic design, but almost all of our Aerodynamics Groups current business revolves around aero engines, and none of its affiliated factories have experience in overall aircraft design "Of course, I know that during the head office period, Comrade Haonan, you participated in the research and development of several aircraft models, but after all, the Falcon Z is a large-scale project that also involves communication and cooperation with foreign parties. You cannot rely solely on You can do it alone..." Deng Shiyou is mainly in charge of corporate logistics and the management of subordinate non-business organizations. However, he was also a draftsman in his early years, so he does not have a bad eye for aviation technology. ?Hence, the question asked is not outrageous. ?It is indeed impossible for Chang Haonan to complete such a complicated work by himself, so he must find some helpers. But where the help will come from, that is the question. ?However, before Chang Haonan could explain, Lin Zuoming, who was sitting closest to Zhu Linyu, replied in a half-joking tone: In fact, when it comes to communication... there may not be many things that need to be communicated. While speaking, he also picked up the cooperation invitation letter on the table and waved it in the air a few times: "According to what is said here, as long as we optimize the airfoil part according to the requirements and then hand it over to Dassault, the subsequent work, including structural design and integration with the overall aircraft, are not things we need to consider. " After he finished speaking, there was a burst of laughter in the conference room ?Although the wording used by Dassault is "cooperation", anyone can understand what it means by suddenly making such a move at this juncture. Simply put it is. We chose the wrong calculation tool rashly before, and we got screwed. Now we want to correct our mistakes, but we feel its too late. Can you help us wipe our ass? Its just that everyone is a person who cares about face, and they always have to live up to their reputation. It is impossible to really kneel down and kowtow. So everyone just needs to understand what''s going on. Mr. Lin is right. Seeing this scene, Chang Haonan continued what Lin Zuoming said: Passenger aircraft are different from fighter jets, because there is no need to consider the issue of wing-body fusion, and the Falcon X uses a tail-mounted engine layout, so the wing is a relatively isolated element in terms of aerodynamics. As for Mr. Dengs question just now There was a bit of a smile on his face: Although our group does not have a unit specifically responsible for the overall design of aircraft, when our Torch Group was still under the Academy of Sciences, we accumulated many designers with such experience through some projects. For example, we have a numerical calculation business department. The director of this department is my senior brother, Liu Hongbo. He has previously been responsible for the design optimization of the wings and rotors of the MA-60 and Z-12 aircraft..." ?As soon as this explanation came out, not only Deng Shiyou, but also several other people in the conference room were shocked. Only Chang Haonan himself, as well as Zhu Linyu and Lin Zuoming, who knew the situation better, behaved as always. Actually, this cannot be blamed on the fact that the other leaders were not familiar with the situation. ? ? Torch Group is different from the secondary units directly assigned to the Aerospace Power Group from the head office. It is an independent branch that "brings capital into the group". In addition, the general manager is Chang Haonan, ?Hence a high degree of autonomy in day-to-day operations ??This time''s participation in the Falcon Z project is an exception. The reason why it needs to be passed through a vote is because the French directly sent the cooperation documents to the Aerodynamics Group, so an additional procedure was required. Under normal circumstances, it is basically only necessary to report major personnel appointments and dismissals, as well as financial income and expenditures to the group. It is actually difficult to determine what business a company is engaged in by just looking at the two pieces of content. ?Especially like Deng Shiyou, it is even more unclear if the supervisors work has nothing to do with business. ? Just from a few words in some reports, we can roughly understand that Torch Group is an enterprise related to software development and mechanical design. Who would have thought that there is actually a crouching tiger, hidden dragon inside. So Deng Shiyou gave a thumbs up: "Mr. Chang, what a plan!" "Um?" ?Although Chang Haonan has long been accustomed to all kinds of praise and exclamation, this wave still left him a little confused: What have I planned? Mr. Chang, please stop being modest... Deng Shiyou had an expression of "I have seen through everything": "When we separated from the aviation industry, we split the subordinate organizations horizontally according to different businesses. But now it seems that Mr. Chang gave us outside the entire Science and Technology Commission system long before the head office was split. Keep a backup plan. In this way, when we have sufficient resources on hand in the future, we can completely consider expanding our business scope to aircraft design... Its so far-sighted ?Looking at Deng Shiyou, whose thinking had completely changed, Chang Haonan almost spread his hands and lost his breath. No, Mr. Deng, please wait a moment. ?He quickly raised his hand to stop the other party from continuing to think: I really didnt think so much about it at the beginning. It was just to expand the business and make more money to revitalize the company... When encountering this kind of thing in the past, Chang Haonan would usually respond with an attitude of neither admitting nor denying. Because when his personal reputation was not enough, urban legends like this really helped to increase his influence. But now, the situation is obviously different. ?Especially after the last attack, Fu Youquan actually suspected that the incident was related to Chang Haonan''s actions. I have to say it is very humorous. And its also a little scary. So, its better to explain it clearly... ?After obtaining approval at the group level, Chang Haonan quickly approached Liu Hongbo with relevant documents and information. I remember that you sent me an engineering document a few days ago, which should be the aerodynamic design plan for this wing. Liu Hongbo looked at the contents of the cooperation invitation, shook his head and said in a slightly sinister voice: When Dassault changed the COMSOL calculation tool before, wasnt it very resolute? How come it suddenly realized its mistake and changed it... Chang Haonan really wanted to say that they didnt know they were wrong, but they knew that the Falcon Z project was about to be outplayed by themselves. ?But as soon as the words came to his lips, he swallowed them in the end. So this is not a return to the lost track... He reorganized the language slightly, and then changed the subject: Lets not talk about that for now. Find a few comrades from your department who have participated in the simulation of the external flow field of the aircraft. The time given this time is relatively tight and we need to start work immediately. Hearing what Chang Haonan said, Liu Hongbo quickly put away the smile on his face. ??If Chang Haonan said that time is tight, then he must be really nervous. Hence, he specially opened the design documentation and took a look. "I" ??The second word he was about to blurt out was stuck in his throat. Six months? Liu Hongbos eyes almost bulged out: Why dont they go to heaven? Even if we want to complete these computing tasks in half a year, its almost impossible, right? ??The Torch Groups mission does not include wind tunnel testing This part of the work will be completed by the French themselves. ??But even if we only perform flow field simulation, the research object is after all a high-aspect-ratio straight wing operating in the transonic range. No one had experience designing this type of airfoil in the past. Always need to do it several times, or even more trial and error. Therefore, in Liu Hongbos view, this time cannot be said to be tight. Its simply not enough. Dont worry, its not a big problem. ?Chang Haonan was sitting on the sofa in Liu Hongbo''s office at this time, sipping the tea in the cup leisurely: Originally, in order to improve the competitiveness of our companys products in the CFD field, I specially prepared a secret trick for next years 2.0 version of TORCH Multiphysics. "But now...since COMSOL has taken a step back, it doesn''t hurt to take this tool out for you to use in advance..." (End of this chapter) Chapter 946 Changs turbulence Chapter 946 Changs Turbulence ??The numerical calculation business department headed by Liu Hongbo and the technical department headed by Wei Yongming are two parallel departments that are not subordinate to each other. In fact, Chang Haonan first decided to let Torch Group take over part of the numerical calculation business. The original intention was to provide after-sales service to TORC Multiphysics users who had needs for numerical calculations but did not have sufficient capabilities. From this perspective, he once considered setting up the Numerical Computing Business Department as a second-level department under the Technology Department. But before he could finalize the matter, the business itself, which was originally just a foil, became a new hot spot. ? Many small companies, or ordinary universities, saw that Torch Group provided this kind of service, and simply gave up their plans to start simulations from scratch and directly outsourced all related business. ?At first, Chang Haonan felt that this was a bit of a delay, so he set a rule to give priority to those users who purchased TORCH Multiphysics. However, the business volume has not decreased at all. In the end, we had no choice but to continuously expand the scale of the numerical calculation business department, and then officially listed it as one of the company''s main businesses. Later, they were even able to overtake the profits of the software division from time to time. Therefore, although there is cooperation between the two, most of the time they are still responsible for their respective acres of land. As for the "secret trump card", since it was prepared for the 2.0 version of TORCH Multiphysics, and Liu Hongbo has not used it yet, he naturally knows nothing about it. Logically speaking, for this type of high-impact project, for the sake of safety, you should choose the most proficient computing tool possible, that is, an old version with stable performance. But right now, Dassault is pressing too hard. ?In addition, according to what Chang Haonan said, this trump card was developed by him himself. ?So, Liu Hongbo is also willing to give it a try... Soon, about a dozen business backbones were pulled into an office on the top floor of Torch Group. Chang Haonan was already sitting at the head of the conference table, waiting for everyone. In fact, after serving as the chief planner of the Aviation Power Group and a professor at Beijing Hang University, he rarely returned to the Torch Group to work. Hence, some new employees may not even have met Chang Haonan himself. Fortunately, the people who just walked in looked familiar, and they should be from the earliest members of the Torch Group. Liu Hongbo arranged the seats for the rest of the people, and then he sat on the left hand side closest to Chang Haonan: "Mr. Chang, according to your request, these comrades have either participated in the Ice Flying Group''s helicopter project with me, or they have switched jobs from the Aviation Industry Corporation of China, and they all have aircraft-related design experience. When the Numerical Computing Business Department was expanded a few years ago, there were still relatively few people who were proficient in this skill throughout China. ??Moreover, a considerable number of them are the "disciples" brought out by Chang Haonan in the aviation industry system. For example, Lin Shikuan and others from Institute 601. ?At that time, Torch Group happened to be named and praised by superiors as a model of "high-tech enterprise". Therefore, in order to show support for Chang Haonan and to solve the work problems of some non-staff personnel after the reduction of state-owned enterprise staff, the two parties hit it off and transferred the working relationship of some of them to Torch Group. At that time, the latter was still an enterprise under the Academy of Sciences system, and both parties were happy. Who would have thought that within two years, Torch Group would become a wholly-owned subsidiary of Aviation Power Group... Now it becomes "enemies". ?However, it was precisely because of these people that Chang Haonan had the confidence to take over the wing design task alone two days ago. Otherwise it would just depend on him and Liu Hongbo... Im exhausted and cant keep up with the deadline. Comrades, I now have a calculation application submitted by the French Dassault Group, which is the airfoil design of a high-speed business jet... ... ????After everyone sat down, Chang Haonan first introduced the general situation of this project in a few words as quickly as possible. Immediately afterwards, the topic shifted to todays focus: This task has a tight deadline and heavy tasks. The fault tolerance rate based on the current old version of TORC Multiphysics algorithm is quite low, and there are no opportunities for trial and error at all, so some new computing tools are needed to improve efficiency. Originally, the new software version 2.0 has been optimized for this kind of calculation task of external flow field simulation, but the software itself has not been tested and packaged, so it cannot be used directly. Fortunately, one of the optimizations related to CFD has been completed and can be applied in the current 1.32 version of the software in the form of a custom function module TORCHMultiphysics is welcomed by many top research institutions. In addition to its excellent performance, this highly free custom module is also a major reason. It allows advanced users to edit models or algorithms by themselves and integrate them into the software. ?Although there are still some limitations, for the software industry in 1997, it was almost equivalent to unlimited imagination. Almost all the people sitting in this conference room have worked in the same R&D team as Chang Haonan in the past. So, when he heard that there was a new optimization, everyone took out their notebooks as if they were conditioned reflexes too familiar. It seems like we are back to the days when we worked on projects together in the past. Chang Haonan, who saw this scene, also smiled knowingly. Then he put down the tea cup, just like before, got up and walked to a mobile blackboard: Simply put, turbulence problems are still the main factor restricting engineering fluid simulation at present, and after taking into account efficiency and accuracy requirements, the currently widely used method is still dominated by the Reynolds average equation. But for complex engineering fluid motions, such as flow separation and transition prediction, a turbulence model that takes into account different flow states is needed, which will inevitably greatly improve the efficiency and accuracy of engineering fluid simulations. Therefore, I made some improvements to the two-equation model commonly used in the past. Only the turbulent kinetic energy is transported, and other turbulent variables are solved algebraically using high-order dimensionality reduction methods..." At this time, someone from below suddenly interjected in a low voice: The new turbulence model... why not just call it Changs turbulence? ??The half-joking tone triggered a burst of good-natured laughter, which was just the right amount to relieve the somewhat tense atmosphere in the conference room. Amid the laughter and laughter, more than one person actually wrote "Chang''s Turbulence" as a name in his notebook... While talking and laughing, Chang Haonan had already written the N-S equation on the blackboard that everyone is familiar with. Of course, for the speed range of the Falcon Z project, there is no need to consider body forces and additional heating terms. ? Q/t+(F-Fv)/x+(G-Gv)/y+(H-Hv)/z=0. "The Cartesian coordinate system directly coincides with the physical position of the computational domain, but requires additional processing methods for the density changes of the grid, which is not suitable for direct programming calculations. Therefore, the physical space (x, y, z, t ) into the computational space (, , , )..." "From the closedness problems of turbulence simulation that we have often solved in the past, we can find that the solution and determination of the mixing length need to be linked to the turbulence field boundary conditions and flow conditions. There is no universal equation. In order to solve this problem, I will use the method of seeking the mixing length distribution of spatial turbulent structures to establish a universal connection between Reynolds stress and time-averaged flow field..." ?The content introduced by Chang Haonan has made a qualitative leap in difficulty compared to the original. Especially at the level of mathematical theory. Fortunately, others have not been idle over the years. The accumulation of a large amount of computing experience has somewhat enhanced their understanding of computing models and algorithms. Therefore, although we cannot fully understand all the theoretical knowledge used by Chang Haonan, at least everyone can still keep up with the ideas. Compared to the situation in the past when I would be interrupted and asked questions every time I spoke, it has improved a lot. This is the most precious wealth that Chang Haonan has left since his rebirth... (End of this chapter) Chapter 947 Ready to pick up! Chapter 947 Get ready to pick up the plane! After several days of preparation and study, the design work of the high-speed straight airfoil required for the Falcon Z project has begun in full swing. The nominal design leader is naturally Chang Haonan. ?However, Liu Hongbo is still responsible for the actual daily work. At present, Chang Haonans main work is to develop new image separation and target tracking algorithms for Ocean One. ?Hence, unless he discovers something wrong with the new turbulence model, he should only do some data verification and algorithm checking. Just like that, a week passed quickly. ??Chang Haonan has made little progress on these two projects. After all, they are still in their infancy. ??On the contrary, the ultra-short laser processing equipment previously developed for Liming Factory has entered the factory trial production stage of the prototype. That is to say, a piece of equipment that is designed for mass production in all aspects is placed in a factory instead of being used for experimental small batch production in a laboratory environment. Mainly used to test the environmental adaptability of equipment. ?Of course, the "small batch" here is just a way of saying it. The production capacity of many equipment at this stage is even more than after it is officially delivered and entered into mass production. If nothing else happens, by the second half of next year at the latest, Liming Factory will be able to process turbine disks and turbine blades for M88-3 and SeA series engines in addition to the production capacity of Turbofan 10. This is also a very important time point for the finalization of the production of turbofan 10. Its just that compared to another thing, its a little less interesting ?One day, when Chang Haonan was about to get off work from the Torch Laboratory. The red landline on his desk suddenly rang. The caller ID showed a number I had never seen before. ?However, those who can get through this dedicated line must be people within the organization. Therefore, although Chang Haonan was confused, he still picked up: Hello, Im Chang Haonan. Comrade Haonan. ??A slightly unfamiliar voice sounded on the other end of the phone. At least, Chang Haonan failed to determine the identity of the caller in less than a second while the other party spoke. Fortunately, the other party did not show off and directly reported his family name: I am Qiao Chenqing. Mr. Qiao? ?Chang Haonan was stunned for a moment, then turned to look at the perpetual calendar hanging on the wall. November 14th. At this time, I am a bit out of the blue. ?The head of the Air Force suddenly contacted me. After thinking about it, it seemed that the only possibility was that... "Is it...that the negotiations with Ermao have come to a conclusion?" Chang Haonan immediately guessed. ?Although the relevant strategy was originally proposed by him, nuclear-related negotiations are, after all, a highly professional and sensitive topic. Therefore, Chang Haonan has not been directly involved in anything related to this since he left the Jingxi Hotel that time. Only occasionally I hear some progress from Ding Gaoheng or Fu Youquan. Last time was about a week ago. A high-level delegation has gone to Ermao to carry out the final inspection, transfer and destruction of weapons and equipment. ?The so-called "transfer" here naturally refers to those long-coveted Tu-160 bombers. ?Calculating the time now, if everything goes well, the result should be almost there. ?Sure enough, Qiao Chenqing on the other end of the phone gave an affirmative answer: Yes, we have signed relevant agreements with three other countries, and four Tu-160 bombers will be able to return to China from there tomorrow afternoon! ! ! Hearing the news, Chang Haonans right hand holding the microphone shook suddenly. Immediately afterwards, the body shook slightly twice. With the sound of "ˡ". His whole body almost hit him on the office chair. ? It was indeed his idea to bypass the arms sales treaty and bring a few still-flyable Tu-160s back to China from Ermao in the name of paying off debts. The planning for this matter began even several years ago. But from beginning to end. Even after the attacks in September this year. Even after the Americans have agreed to the conditions proposed by us. ?Chang Haonan still cannot guarantee that this matter will succeed. It can be said that this is the most uncertain thing he has done since he was reborn ?That is, after all, a strategic weapon with no room for maneuver. Taking off from airports in the Northeast, combined with the range of air-launched cruise missiles, it can even cover almost all important cities in North America... ??Moreover, the closer to success, the deeper the anxiety in Chang Haonan''s heart. It''s just that during this period, he has been using busy work as an excuse to cover up this restless mood. But covering it up does not mean that it is gone. On the contrary, it will become more intense because of the inability to vent. Therefore, when Chang Haonan first heard this news that symbolized the settling of the dust, Chang Haonan''s first reaction was not even excitement. But a sense of relief. Mr. Qiao After being silent for several seconds, Chang Haonan''s breathing finally calmed down again and said: Tomorrow, can I... Before he could finish the question, Qiao Chenqing gave the answer first: "certainly." The purpose of making this call is to ask you to come with me! After hanging up the phone, Chang Haonan immediately canceled all his trips for the next three days. Then, the next day, I and the Air Force delegation, including Qiao Chenqing, boarded a plane to an airport in Haojing. "to be honest." In the cabin, Qiao Chenqing specially chose the seat next to Chang Haonan: I still cant believe that the Americans would actually agree to this deal. Chang Hao Nanxin said that I actually didnt dare to believe it. ?But this suggestion came from him first, and it seemed a bit too pretentious to say that he was not sure at this time. ?So, he had to reorganize the language: The Aiwuhan thing is really important to the United States now. This White Houses total number of votes in the general election was even less than that of its competitors. It relied on a slight advantage of 1 electoral vote to finally win. Therefore, most people thought it was just a transition. As a result, because of this attack, The support rate has been soaring, and at its highest point it was almost approaching Roosevelt..." So, for the benefit of this aspect, let alone a few Tu-160s, if the Russians are willing to sell them, I estimate that even if they buy a few 941 nuclear submarines, they will turn a blind eye. This cannot be considered an afterthought by Chang Haonan. ?The reason why he first decided to start with those Tu 160s was actually with this idea in mind. Because Chang Haonan had read some peoples interviews or memoirs before he was reborn. ? Many of them specifically mentioned that after the 2001 attacks, Mr. Bush was in an extremely emotional state. Basically, "As long as you can help me kill Ai Wuhan, I will really treat you as a brother." This state should not appear in a leader. But in the special context of that time, it doesnt seem to be unreasonable. In short, he relied on advance planning, poor information and some luck, and finally won the bet. Therefore, although Qiao Chenqing intuitively believed that Chang Haonan should have a deeper analytical logic, he did not struggle with this issue in the end. Anyway, you are right, then you are awesome... Xiao Chang. ??Qiao Chenqing changed to a more affectionate title: For our country, the return of these four planes is not the end, but the beginning. The pick-up team reported to me before that these Tu-160s were left over from the Russian army. The condition of the aircraft is not optimistic. Although it can still fly, many subsystems are in an unusable state. If you want to maintain them for a long time, you must build a relevant logistics maintenance and system, especially the airframe structure and power system that are related to the basic safety of flight... He said it very euphemistically, but the meaning was very obvious An aircraft like the one shown in Figure 160 cannot be serviced by the Air Force ground crew alone. Especially the four NK32 afterburning turbofan engines, which are something the Chinese Air Force has never been exposed to before. Mr. Qiao, I cant guarantee you anything now. Chang Haonan thought carefully for a while and finally said: "But it was a coincidence. A few years ago, by chance, I exchanged a large-scale vacuum electron beam welding production line from Lao Maozi, and also had a lot of related technical information, which was specially used for the production or maintenance of large-scale vacuum electron beam welding. Metal structural parts of aircraft Lets not talk about the large-sized spar and wing boxes. Its still no problem to make some minor repairs. "As for the NK32 engine... we are really at a loss now. It may be difficult to produce new ones in a short time. However, limited life extension and maintenance of existing models... If we can be given some time to study, it should not be difficult to do. arrive" "In addition, the NK32, in fact, the Russians themselves cannot make new ones now, so they are actually on the same level as us, and they have more Tu-160s on hand, so they are definitely more anxious than us, so it is not impossible. Cooperate on this matter..." ??As Chang Haonan took stock of each item, the worry on Qiao Chenqing''s face gradually turned into shock. Whether these problems themselves can be solved in a short period of time is actually secondary to him. Because the superiors did not even set a clear timetable. There is no pressure on KPIs. But Chang Haonans ability to list a list of matters to be solved in such a short period of time is very exaggerated. You must know that from September 11 to now, it has only been two months. ??He was not idle all the time during this period, but he still had a lot of other work to do. Not to mention, the vacuum electron beam welding production line just mentioned was brought back a few years ago... This is not like preparations started just two months ago. Its more like having a plan in advance. ?Of course, Qiao Chenqing did not think that the attack was related to Chang Haonan like Fu Youquan did. But at least He can be sure. Chang Haonan has actually been eyeing those planes for a long time! (End of this chapter) Chapter 948 What to do with domestic bombers? Chapter 948: What to do with domestically produced bombers? ?About two hours later, the plane finally arrived at Lintong Yaocun Airport in Haojing City, Qin Province. ??Although Chang Haonan first raised the idea of ??acquiring Tu-160 after the attack in September, the Air Force showed the utmost importance to the matter. Less than a month later, the 108th Regiment of the 36th Air Force Division received an order to reorganize and reorganize. It handed over the original equipment reorganization system to the other two brother units, and entered a state of reorganization and training, preparing to receive the Chinese Air Force''s third Two types of strategic bombers In fact, the reason why Air Force leaders chose this unit is also based on historical considerations. The 36th Air Force Division, formerly the Fourth Independent Regiment of the Air Force, is the only unit of the Chinese Air Force that has ever been equipped with strategic bombers (Figure 4), and the only unit that has had formal nuclear-related positions. ?Although these nuclear-related positions have been eliminated long ago, in 2001, many older generation commanders and fighters who had previously engaged in related work were still working hard at their jobs. It is not completely dated after all. When you recover, you wont have a black eye. ?Of course, the restoration mentioned here only refers to the restoration of nuclear-related positions and nuclear-related establishments. As for restoring space-based nuclear capabilities There is no timetable yet. On the one hand, China has just joined the WTO, and Americans attention has finally been attracted to the Middle East. It is at the most critical stage of keeping a low profile and is not suitable for large-scale nuclear expansion. on the other hand. ? is also more important. ??The few nuclear warheads currently in China''s hands are developed according to the requirements of ballistic missile delivery and are not suitable for air delivery. ??Not even an air-launched nuclear vehicle... So, there is indeed a long way to go. As the plane slowly descended, Chang Haonan gradually saw clearly the situation at the airport on the ground through the porthole. The runway and taxiway have obviously just been renovated and reinforced, and there are even some engineering vehicles painted in military green parked not far away. They must have not had time to evacuate. Even the marking lines above have been repainted, and the colors look much brighter than those at other airports. On one side of the runway, two rows facing each other, with a total of 4 metal roofs, have been built. Even if you look down from an airplane, you can see that its span is extremely huge. At least sixty or seventy meters. Based on the quantity judgment, it is obviously specially prepared for those 160 pictures. On the other side, there is a conventional apron. ?Two rows of H-6 bombers are parked above. The total number is about a dozen. Mr. Qiao. ?Chang Haonan pointed out the window and asked Qiao Chenqing next to him: These H-6s are the current equipment of the 108th Regiment? The latter knew the situation here very well and shook his head without even looking outside: Strictly speaking, it is the equipment before the 108th Regiment. Looking at Chang Haonans curious eyes, he paused for a moment and then continued to explain: On paper, these aircraft have been handed over to two other regiments of the 36th Division. "However, in order to enhance the confidentiality of Yaocun Airport, the 106th and 107th regiments transferred to Wugong last month. Because the 108th regiment''s modification task was too urgent and they had not had time to complete the handover process, they still stopped here. " As he spoke, the plane had landed at the end of the runway and began to slow down. ?This also made Chang Haonan notice the white radomes under the noses of several of the aircraft, as well as the very smooth belly due to the removal of a turret Hong 6H. The latest model of the H-6 family. After the plane entered a smooth taxiing state, Qiao Chenqing also noticed Chang Haonans gaze: There are several H-6Hs here that were delivered in small batches last year. But He showed a slightly helpless smile: Its a bit behind the times...so the current position is a bit embarrassing... Chang Haonan was a little nervous when he heard this, but in the end he suppressed his laughter. After all, this incident was ultimately caused by him. According to the original plan, this "new" bomber, which was established in 1995, should enter service at the beginning of the 21st century and serve as the main missile carrier aircraft of the Chinese Air Force for a long period of time, combined with the TV-guided KD63 missile. Most of the ground precision strike missions. From the perspective of the time, there was actually nothing wrong with this idea. In the mid-1990s, there was no need to mention the J-10 and J-11, which seemed to have nothing to lose. Even the JH-7 cannot guarantee the localization rate. As a result, production of the imported Spey MK202 was quickly stopped after the imported spare parts were exhausted. Therefore, the H-6 is my countrys only air-based and ground-based weapon platform that can maintain quality and quantity and serve. In order to ensure sufficient range and power, the KD63 design prototype chose the earlier YJ-6 anti-ship missile, so it can still reach a range of nearly 70 kilometers while carrying a 500 kilogram warhead. The price is that the bomb weighs an astonishing two tons. Only the H-6 can carry it.?????Running in both directions belongs to. Originally, this was supposed to be a beautiful story of machine-gun cooperation and mutual achievement. However Times have changed. ??When both H-6H and KD63 completed testing and finally entered small batch trial production, the time had already reached 2000... Although this speed is much faster than the original timeline. Unfortunately its not fast enough. ?At almost the same time, the fully domestically produced and multi-purpose J-11B was to be equipped in small batches. After major changes, the J-10A with full multi-purpose potential has also entered the end of testing. As for the JH-7, which could not be built in large numbers at that time and was requested by the navy and air force... Now she has become Mrs. Niu. The emergence of a large number of cutting-edge tactical aircraft has also prompted the Aerospace Science and Industry Missile Research Institute to pick up the previously abandoned medium-sized air-to-surface missile project, KD88. ?The Eighth Academy of Aerospace Science and Technology has already established a new supersonic air-to-air/air-to-ground universal missile project. This is the Pili 13/KD13 that Chang Haonan previously recommended. Both models have entered the final stages of target testing. Not to mention other models that are still in the development process. In short... Nearly squeezing out the H-6Hs living space. ??However, in order to protect the business of Haofei Group and the R&D capabilities of China''s domestic bombers, low-speed production is still maintained and used as an emergency transition model. It can only be said that the future of a piece of equipment depends not only on the efforts of R&D personnel, but also on the development of the historical environment. Some equipment that was originally planned as a transitional piece of equipment ended up being the main force. And some equipment that was supposed to work according to the main force ended up being reduced to transitional status... It will take some time from the time the plane lands to the time it stops and you get off the plane. In addition, we just happened to be chatting about the H-6. ?Therefore, Qiao Chenqing asked casually "Xiao Chang, do you think...this H-6 has the potential to be further improved?" ?This seemingly simple question made Chang Haonan a little confused for a while. I think there should still be some About half a minute later, he spoke with a slight hesitation: Although the performance of the Figure 16 platform has lagged somewhat behind, in some special cases, a platform that can carry large-sized weapons may still be needed. "At present, our country''s stealth technology is not yet mature, and if we develop a new, non-stealth medium bomber from scratch, there will be no qualitative difference from continuing to improve on the H-6... So, why not choose a A more cost-effective solution. Anyway when it comes to space-based strategic deterrence, we theoretically have it Chang Haonan said as he glanced at the distant skyline. According to the plan, the four Tu-160s should have taken off long ago and will probably arrive here before the sun sets. Thats true ??Qiao Chenqing also collected his thoughts at this time. ? Reason told him that at least during his tenure, the vast majority of China''s bomber forces would still have to accompany the H-6... ?However, Chang Haonan next to him did not completely stop thinking. ? ? In the previous version of the H-6K, in addition to the airborne equipment, the core improvement was to change the turbojet 8 to D30KP2/turbofan 18, thus greatly extending the range. Even Guam can be directly included in the combat radius. ?However, in this world, it seems that after the production of Turbofan 10 is finalized next year, the Turbofan 20 project will be approved in advance. Even the IL-76s that China has on hand, most of them already use the MF model of PS90A-76. In this case, if we go back and imitate D30KP2...it seems a bit abstract. However, the special structure of the H-6 engine located at the root of the wing cannot accommodate a large bypass ratio turbofan engine... Its a **** to be alive. Chang Haonan complained in his heart: D30KP2, a seriously outdated product, has actually found a carrot hill that cannot be replaced by others..." (End of this chapter) Chapter 949 The "white swan" returning eastward Chapter 949 The "White Swan" Returning East Until everyone got off the plane, Chang Haonan could not think of a more reasonable solution than in his previous life. Mainly the combination of D30KP2+H-6 is indeed too cheap. Whether it is to independently develop a new airframe or a new medium-bypass ratio turbofan engine, it is a serious extravagance and waste in comparison... Finally, he decided not to pursue his duties in his position. ?Leave the problem to the aviation industry group next door ??If they feel that the engine is a consumable and it is safer to build it themselves, then it does not mean that they cannot make the D30KP2 domestically. By the way, I will give practice to the following research institutes with weak technology. ??If they feel that it is not worthwhile to set up a special project for hundreds of engines, then Chang Haonan is happy to focus resources on more important models. The right is to support northern neighbors to resist military pressure from NATO... Just as he was thinking this, two air force officers with 24 military ranks on their shoulders had already arrived in front of everyone. ?The two are Yan Kun, the person in charge of Lintong Station, and Shou Guofu, the political commissar of the 108th Air Corps. At the beginning of the 21st century, the Air Force had not yet undergone reforms, and aviation units and ground support units were separated in organization. Under normal circumstances, aviation regiments and stations are regiment-level units. But due to well-known reasons, they are all assigned as assistant divisions here. As for the leader of the 108th Regiment Naturally, he was still flying back from the plane. After a brief situation report, everyone, led by Yan Kun and Shou Guofu, arrived near the area covered with a hangar. Although he had roughly estimated the scale of these four things when he was on the plane just now. But now that he actually stood on the ground to observe, he still felt a bit oppressive. Actually, if we look at the volume alone, the sizes of these hangars are not particularly outrageous. After all, even the main building of the Torch Laboratory has a lateral span of about 60 meters. It''s just that the hangar is open to all directions, so the visual effect is much more exaggerated. ?Furthermore, Chang Haonan discovered that two of them had not actually been completed yet. It can be seen that the relevant preparation work is indeed carried out in a hurry. We originally planned to build a reinforced hangar for each of these four aircraft, just like the B52 at Tyndall Air Force Base. ?? Qiao Chenqing sat on the viewing platform and said to Chang Haonan next to him: But...it turned out that time was really tight and it was simply impossible to build four hangars in two months. He smiled helplessly: "Furthermore, the construction of super-large reinforced hangars is also very difficult. Our country currently has no experience in this area. In addition, the Tu-160 itself does not have a stealth layer and is relatively sturdy, so we temporarily built four hangars. At least take precautions against wind and rain..." ?Chang Haonan was a little difficult to evaluate for a while. In fact, even the wealthy US military, in most cases, leaves non-stealth bombers like the B1B and B52 out in the open. After all, strategic bombers usually park in the rear areas. If such a place is bombed, there is a high probability that it will go to the nuclear warhead. Whether or not there is a hangar does not really matter. ??Moreover, the exterior parts of the aircraft are actually designed to withstand rain and snow, so they are not as delicate as outsiders imagine. As for stealth aircraft, the stealth paint is too delicate and must be kept in a place with constant temperature and humidity, so it has no choice but to have a closed environment. ?However, Qiao Chenqing, as the head of the Air Force, should naturally be familiar with these things. So, this behavior can only be explained as... Similar to the kind of care a child would receive after getting a new toy. Fortunately, its just a few tin sheds and doesnt cost a lot of money. Even if we put aside the plane matter, we can at least make the working environment of the ground crew members more comfortable. ?Following Chang Haonan''s random thoughts, the sun also moved all the way to the west, and finally hung not far above the horizon. Actually, if you flew directly back to China from Ermao, you should have arrived a few hours earlier. ??But the Tu-160 is a strategic bomber after all, and many countries are unwilling to allow such a four-plane formation to pass through their airspace. From Chinas perspective, if you choose to fly direct, many areas in the middle are not really safe. ??The disintegration of the Soviet Union left behind a large number of medium and long-range field air defense systems. No one knows which ravine has a missile launcher hidden in it. Hence, the pick-up crew still chose to take a relatively safe route. Just when everyone was getting a little sleepy from waiting, a refreshing voice finally came from the intercom that had been placed on the table: Attention all units, direction 310, distance 330km, four large targets, diamond formation, altitude 9000, speed 950 ?Those Tu-160s still maintain the technical status of the Soviet Air Force period intact. Naturally, it is impossible to have the identification friend or foe system on the Chinese side Even if it were available, IFF would not be effective at this distance. ?Hence, radar can only distinguish the approximate attributes of the target. ?Of course, at this juncture, a rough attribute is enough. ??Everybody knows what it will be. ?However, for such a big event, of course not only people from the Air Force were sitting on the viewing stand. Four goals? A leader in casual clothes was a little confused and approached Qiao Chenqing: Didnt I just say that after entering our countrys airspace, there will be fighter jets accompanying and escorting us throughout the entire journey? Oh...because the early warning radars that can see such a distance are UHF band early warning radars, and their accuracy is relatively poor. The latter replied: "So, either the RCS of the tactical aircraft is too small and has not been detected, or the echoes from the small targets are simply mixed into the large targets." "How can it still be like this?" The questioner just now had a shocked look on his face and was obviously a complete layman in terms of technology. "sure." Another officer next to him replied: In fact, a typical tactic of the air force of Western countries is to hide tactical aircraft performing reconnaissance or bombing missions near normal flying passenger planes, so as to allow the defenders to take advantage of them. There are many accidental attacks on passenger planes that happen like this, but its hard to find evidence. For a few aircraft flying close to the speed of sound, a distance of more than 300 kilometers does not take too long. Therefore, Chang Haonan quickly saw several streaks of brown smoke extending from the northwest through the telescope The NK32 engine uses nitrogen-containing T-8B aviation fuel. When the aircraft flies at low or ultra-low altitudes, a trace amount of nitric oxide will be ejected from the tail nozzle due to fuel-rich combustion, and then it will be quickly oxidized into nitrogen dioxide. It is also reflected as a yellow smoke. Just a few seconds later, a large white plane with an exaggerated wingspan appeared in his field of vision through the thin clouds. Next, there will be the second and third planes... !! At this moment, Chang Haonan''s breathing almost stopped. Although these aircraft were not designed and built by him. But it was through his hands that he came to China. In fact, this is the first time in Chang Haonans two lifetimes that he has seen this model with his own eyes. It was only then that he finally intuitively understood why the designer called it the "white swan". Four planes, like swans spreading their wings, floated lightly from the distant sky towards the airport. It is completely impossible to see how bulky this 400-ton body should be. ?Only elegance. It must be admitted that in terms of aviation aesthetics, the Soviets, like the British, have reached certain limits. Its just that the directions of the two limits are opposite. From an aviation design perspective, the Tu-160 has almost identical design features with its old rival B1B. But when the two planes are placed together, their appearance gives people completely different feelings. Coming, coming! At this time, excited shouts finally broke out from the viewing platform. ?Chang Haonan''s five senses became much sharper than ordinary people after his rebirth, so others would see it later than him. ?A few dozen seconds later, a total of 8 J-11 fighter jets located on both sides of the four Tu-160s also appeared in front of everyone. Obviously, the distance is already very close. ?However, the fleet did not intend to land directly. Rather, directly above the airport, a 12-plane formation made a low-speed pass. Of course, in order to ensure safety, the height is not very low. Just so that the people on the ground can vaguely see the belly of the aircraft with the naked eye. Even so, Chang Haonan seemed to feel a top-down airflow, causing him to subconsciously tighten his hat. There are not a few people who have made similar actions to him. Obviously, this is not an illusion. As for those without hats More than one person exposed the secret of being a "Mediterranean" because his hair was blown up... It can be said that this is a feeling that no one has ever experienced... A few minutes later, the four Tu-160s returned to the airport along the landing route. The J-11s responsible for the **** mission have already left. ?Yaocun Airport has only one runway, and the four bombers must be arranged to land in order. If we keep up with the other 8 planes, it will be a bit of a mess... ?Under the command of the tower, the first plane lowered its landing gear and slowly fell from outside the airport wall. With a "squeak" sound, the main landing gear hit the specially reinforced cement runway surface, and a cloud of cyan smoke generated by rubber friction rose up. Immediately afterwards, three speed parachutes arranged in a "pin" shape popped out from the cone-shaped part of the tail. The sound caused by the friction between the umbrella surface and the air can be heard even on the tarmac. ??But the sound was immediately covered up by the thunderous cheers from the viewing platform... The publicity officer captured the moment when the plane slid on the runway and passed directly in front of the viewing platform, and quickly pressed the shutter. The camera recorded the time at this moment November 15, 2001, 16:07. ? ?The first Tu-160, numbered "Red 24", landed at Lintong Yaocun Airport in China, becoming the first supersonic strategic bomber equipped by the Chinese Air Force. (End of this chapter) Chapter 950 Buy one get one free cruise missile? Chapter 950: Buy one, get one free...cruise missile? Since they had never been exposed to such a large parachute in the past, and they had to release three at a time, the ground crew was somewhat in a hurry. As a result, the interval between the landings of each plane also appears to be slightly long. Fortunately, the range of these Tu-160s is quite sufficient, and there is no risk of fuel shortage at all. It was not until most of the sun disappeared below the horizon that the last plane numbered "Red 14" finally landed smoothly on the ground. Soon, the four planes were facing each other and parked in two rows at the entrance of the hangar that had been prepared. Of course, it can also be said to be two columns. ?At this time, the crowd on the viewing platform was already getting ready to move. Just now, everyone has seen this kind of aircraft in the sky through telescopes. ?Now, naturally, I cant help but want to take a closer look. ?However, in an area like an airport, the sky is vast and the tower is the largest. Therefore, after the four planes shut down their engines, set their gear blocks, and finally determined that it was completely safe, a few minibuses slowly drove over and took these dozens of people to the parking area a few hundred meters away. . At this time, pilots wearing two different flight uniforms also climbed out of the door behind the nose landing gear one after another - ?This airport pick-up mission took less than 10 days to complete. It is tantamount to wishful thinking to fully learn to control such a complex behemoth in such a short period of time. Hence, during the return flight, the captain and navigator-operator of each aircraft were Ermao pilots hired from the original unit. Only the first officer and navigator (actually the bombing system controller) are from the Chinese Air Force. These eight Ermao pilots will also stay here as instructors for a long time together with the ground crew who arrive later. "Report!" A pilot trotted up to Qiao Chenqing. ?Although there was no military rank on the flight suit, and he didnt even have time to take off his flight helmet, no one could really identify this person. ??But judging from this set of smooth movements, 80% of them are the commander of the entire flight mission. As expected, the other party raised his hand and saluted Qiao Chenqing: Li Dewen, commander of the 108th Regiment of the 36th Aviation Division, has successfully completed the mission of picking up the plane and returning home. He is reporting to you. Please give your instructions! ?In the cold wind of early winter in the northwest region, Qiao Chenqing also stood at attention and returned the same standard military salute: Congratulations on your successful completion of the mission. This will be a day recorded in the history of the Chinese Air Force. Come back to the team and have a good rest! Under normal circumstances, at this time, Captain Li Dewen should answer yes and then do what he should do. After all, I have been flying for almost ten hours straight and I really need to rest. ?However, he did not do this. Instead, he took a step forward, approached Qiao Chenqing, and said in a voice that only a few people nearby could hear: Mr. Qiao, when we were at Ermaos side, we had a relationship with their person in charge... um... so... Looking at Li Dewen who was hesitant to speak, Qiao Chenqing frowned slightly: Made a mistake? ?The former quickly shook his head like a rattle: Thats not true Hey...you didnt make a mistake, why are you hesitating... Qiao Chenqings heart that had been hanging just now finally dropped: If you have something to say, tell me directly, its all my own. Obviously, this is what Li Dewen was waiting for: "So when we returned, Ermao secretly brought us some more gifts..." Bring something? Qiao Chenqing turned slightly and looked at the dozen pilots who climbed out of the cabin: What? ?Obviously, his understanding was slightly biased, thinking that the "gifts" Li Dewen mentioned were small gadgets such as souvenirs. However, Chang Haonan, who was at a later position, saw some clues. Mr. Qiao, look over there ??He said and pointed at the "Red 24" parked farthest away from everyone. That is the plane that Li Dewen personally brought. "how" Just when Qiao Chenqing was about to ask what was wrong, he noticed that the belly magazine of the red 24 was actually open. Considering that the IL-76 transport fleet transporting relevant auxiliary equipment would not arrive until the next day, it is obviously impossible for the ground staff from China to do it. It can only be opened by the crew member from inside the cockpit before disembarking. ?Hence, Qiao Chenqing also had some vague guesses. ?However, seeing is believing. He gestured in that direction: Lets go and have a look. ?Several people followed Li Dewen''s footsteps and quickly arrived in front of the No. 1 hangar. ?Standing at the foot of this Tu 160, Chang Haonan suddenly had a sense of a dream that intertwined time and space Red24. In the original timeline, this was the first Tu-160 bomber to be completely dismantled. Until then, I had only flown about 470 hours in total. But in this life, in a slightly magical way, it was reborn in a great eastern country thousands of miles away. Including another red 14 with the largest crowd gathered around it. It was the second one to be demolished that year. Flight time is shorter, only 110 hours Chang Haonan raised his head almost uncontrollably and looked at the nose of the aircraft that seemed to be several stories high. I didnt feel it when I was far away before, but now when I stand in front of you, I feel like its just the same thing. big. In fact, Chang Haonan has also seen the Boeing 747 with a larger take-off weight. But the two aircraft give people completely different feelings. If I have to say something else, as a strategic bomber, the Tu-160, even though its appearance is slender and elegant enough, can still reveal an indescribable aggressiveness. Even for a moment, Chang Haonan felt that it was a little difficult to breathe. Several leaders, follow me. ?Li Dewen turned around and waved his hand, motioning for Chang Haonan and others to follow. Immediately afterwards, he walked through the huge magazine door and came directly under the belly magazine. "Oh My God-" "This is" ??The moment the magazine came into view, several people exclaimed in different styles Due to the nuclear weapons limitation agreement signed before the collapse of the Soviet Union, all Tu-160s and B1Bs had their free-fall bomb racks removed from the outside of the fuselage. Hence, these two built-in magazines distributed longitudinally have become the only places where ammunition can be hung. ? And, unlike most of its bomber counterparts, the Tu-160 did not even consider carrying traditional bombs in the magazine. ??There are only two cruise missile rotary launchers with a structure similar to a revolver. ? And one of them is now directly above everyone''s heads. ?Of course, if that''s all it is, there''s nothing shocking about it. What really made everyone exclaim together was the "gift" Li Dewen mentioned just now. ??This rotating launcher located at the front of the red No. 24 machine actually has three cruise missiles hanging neatly on it! This is...kh55? The first person to react was Chang Haonan. In fact, China had obtained the technical information of the kh55 from some channels in the previous life, and finally vigorously promoted the research and development of the Changjian 10 cruise missile. However, live ammunition of kh55 has never been obtained. "right." Li Dewen nodded: And...can be launched. Wait a minute Following closely behind is Qiao Chenqing. ?However, he immediately realized a very serious problem: Shouldnt these things be destroyed? You got three rounds back...are you sure you wont be wrong about the account? This...actually we didnt know until we went there. Li Dewen quickly explained: In the Soviet weapon naming system, the kh55 with nuclear warheads and the kh55 with conventional warheads are assigned two different equipment serial numbers. Qiao Chenqing immediately understood the meaning of this sentence: So...these missiles are no longer on the destruction list from the beginning? Thats right. Li Dewen replied: Otherwise, we would definitely not dare to bring it back For a while, no one answered. There were only the sounds of breathing from a few people around. It was as if the air was about to freeze. Let Yan Kun find some reliable comrades to take care of the plane. I dont know how long it took, but Qiao Chenqing finally said: Also, guide the visitors and dont let them get too close to the two planes on the inside! (End of this chapter) Chapter 951 Remote acupuncture Chapter 951 Remote Acupuncture Bringing back a batch of cruise missiles is actually a big or small matter. ?Taken down to a small level, even strategic bombers have been obtained, so these kh55s, which are of the same technical level as the Tomahawk, seem to be just additions at best. But speaking more broadly... There is no small matter involving nuclear weapons. After all, Figure 160 is written in black and white on the denuclearization agreement, and no one can find anything wrong with it. The missile is, after all, an extraneous matter. Even if you say that the kh55 equipped with nuclear warheads and the kh55 equipped with conventional warheads are two different types of equipment, they cannot be distinguished at all from the appearance and the inscriptions on the missile body. As for the incredibly complex serial numbering system of the Soviet Union... At this moment, I am afraid that even the few Maozi themselves cannot understand clearly what happened after the separation of the family. In the end, the fewer people know about it, the better. ?Thinking of this, Qiao Chenqing waved to Li Dewen, who was about to leave: Commander Li, wait a moment. "arrive!" The latter immediately stopped and turned to face Qiao Chenqing. This magazine Qiao Chenqing pointed to the top of his head as he spoke: Can it be closed without starting the plane? The huge magazine door can actually block all views from the side. In addition, the entire rotating launcher is buried deep inside the aircraft body, so unless someone comes to their position directly under the aircraft, they cannot see what is going on inside. But he still felt that it would be safest to close it quietly. This ?Li Dewen hesitated for a moment: The range and speed of the several IL-76s transporting ground equipment are not enough. In order to ensure flight safety, they will rest in Russia tonight and are not expected to be delivered until tomorrow afternoon..." Then Just when Qiao Chenqing was about to say forget it, Li Dewen''s eyes suddenly lit up again: However, there is a crank handle in the cockpit for emergency use. You can manually close the magazine. Hearing this sentence, several people around him almost all looked at the two hatches that were quite exaggerated in size. ? ? The energy saving is ultimately based on the principle of leverage. The energy saved has to be recovered from the number of turns. If you want to close these two things, I''m afraid it will take some effort... Lets get a few more comrades to come over. Its safer to close the door. ??Qiao Chenqing slightly lifted the cotton hat on his head and said to Li Dewen: "If you work harder these days, I will contact the comrades of the Aerospace Science and Industry Corporation as soon as possible and come over to pick up these rounds. They should be interested." Li Dewen immediately saluted and took the order to leave. ?Looking at his retreating back, Qiao Chenqing, who was in a good mood, turned around and wanted to pat the open magazine door in excitement. As a result, I had already stretched out my hand, and then I realized that I couldnt reach it... Had no choice but to punch the front wheel of the plane. ?This set of actions is a bit funny, but with Qiao Chenqings identity, its really hard for everyone to laugh. The situation was a bit awkward for a time. Ahem ?? Qiao Chenqing also felt that he had lost his dignity just now, so he coughed twice and quickly changed the topic: Speak of it, Comrade Haonan. I just saw that there are a total of three rounds in the magazine. The Third Aerospace Institute should only need one or two rounds at most. Take a look at your aviation industry system. Is there any demand for them? Although the aviation power and aviation industry have completed group restructuring for several years, the older generation like Qiao Chenqing are still accustomed to the past names, and it is difficult to change them for a while. ? And in fact, since the two parties do not directly compete at the business level, and even mainly cooperate, the relationship is indeed much closer than other pairs of old enemies. The value of these kh55 rounds is mainly reflected in the overall structure and ballistic control system. As for the aerodynamics and structure... they can only be regarded as quite satisfactory. For our aviation department... there is nothing worthy of reference." Chang Haonan replied as he followed Qiao Chenqing towards the No. 3 and No. 4 sheds: Only the small turbofan engine is a bright spot, but our current problem is not that we dont have this technology, but that we are short of funds and manpower, so even if we dismantle one or two samples, it wont have much effect. "but" ?Originally, he wanted to tell the other party something he had been thinking about for a long time but never had the chance to do. ??As soon as he said a transitional conjunction, he was interrupted by Qiao Chenqing who suddenly stopped: Small turbofando you have a ready-made model on hand? Chang Haonan quickly shook his head: Having technology and having models are two different things. Currently, the turbofan 10 is in the critical stage of production and finalization. The results of the previous training through this project are still settling. It is not suitable to spread the stall too widely in a short period of time. Therefore, in recent years, the group still plans to focus on key models and train the teams capabilities. Hearing this answer, Qiao Chenqing''s face showed a little regret: Thats a pity. ?Chang Haonan didn''t say anything, but looked at the other party curiously. Qiao Chenqing paused for a moment, then started walking again: At the end of last month, we held a seminar on precision-guided weapons involving the entire military based on the use of weapons and ammunition by the US military in Aiwuhan. "At that time, comrades from the Third Academy of Aerospace Science and Industry told us that in order to ensure the Donghai 10 long-range cruise missile was put into service on schedule, they planned to install the same turbojet engine as the KD63 on it, but the range would be shortened from the original plan of 2,500 kilometers to 1,500 kilometers. "Of course, this should actually be a major concern for the Navy and the Second Artillery. I just heard you mention the small turbofan on the kh55 and suddenly thought of it..." ?Chang Haonan had a look of understanding on his face. The so-called Donghai 10 is actually the later Changjian 10. Its just that China does not yet have the technology to allow cruise missiles to accurately strike ground targets, so it plans to use the same missile body to roll out a long-range anti-ship missile to deter the aircraft carrier battle group outside the combat radius of the carrier-based aircraft. However, it was quickly discovered that the target of anti-ship missiles is moving warships, and it takes almost an hour for subsonic missiles to fly more than 1,000 kilometers. The problems involving target search and relay guidance cannot be solved either. . So it was settled. Mr. Qiao, in fact, the small turbofan or turbojet engine used in cruise missiles is one-time use, so the technical difficulty is not really high. The Aerospace Science and Industry Company should also have a certain technical foundation. Chang Haonan thought for a moment and said: If there is really a need for this, then let them take the lead and we will assist. It wont take long to modify a turbofan based on the old turbojet. "But to be honest, based on our country''s actual needs, there may not be a qualitative difference between a 1,500-kilometer range and a 2,500-kilometer range. The key technology for cruise missiles, especially land-attack cruise missiles, is mid-course route planning and terminal target screening. and identification. "oh?" Listening to what Chang Haonan said so clearly, Qiao Chenqing also became interested: Does your aviation power group also conduct research on these? Wellstrictly speaking, its not our group that conducts research. Chang Haonan raised his hand and gently touched his chin: Its me doing some research. The surrounding air seemed to be quiet for a moment. Seeing no one responded, Chang Haonan had no choice but to continue explaining: When I was doing theoretical derivation before, I accidentally developed a series of algorithms that can be used for classifying and processing image data. I am currently trying to use this as a basis and combine it with some other technologies to complete image segmentation and contour tracking. If the technology is tested and there are no problems, it should be able to be used as an effective terminal guidance method, which is equivalent to allowing missiles to automatically identify and track targets through images like human eyes. Combining terrain matching tracking and satellite guidance can improve the final accuracy of the weapon...well...by an order of magnitude." ?This time, its not just Qiao Chenqing. Other people around him also pricked up their ears. ? It is now the beginning of the 21st century, and a full 10 years have passed since Operation Desert Storm. The myth of precision-guided weapons has been disenchanted, at least within the military. ?Due to the inherent shortcomings of satellites in altitude measurement, the accuracy of missiles guided solely by GPS or similar means can only be considered unsatisfactory. At present, it can probably reach 20-30 meters. The worse ones may be up to 50 meters. And its also susceptible to interference Especially this point, due to someone''s reasons, has now taken root in almost everyone''s mind. In short, if you want to achieve more refined operations, you need laser guidance or TV guidance. But the former requires something to continuously illuminate the target, and is very significantly affected by weather. The latter is subject to the full human loop, and the limit distance of effective control is only two to three hundred kilometers. So "remote acupuncture" is actually not as magical as imagined or promoted by Americans. Its very difficult. However, Chang Haonans words just now attracted everyones attention again What if missiles could identify targets on their own like humans? ??Isnt that equivalent to lifting the control distance limit of TV guidance? Improve the accuracy by one order of magnitude, that is 2-3 meters. In other words, if you are one thousand kilometers away, two thousand kilometers away or even further away, you dont need to risk any laser irradiation. As long as you have a rough coordinate data and the outline of the target, you can send the missile to the target. It may be a bit exaggerated to say that it is accurate to a window. But accurate to a floor, or a car... It doesn''t seem entirely impossible. Is there still such technology? Among the crowd, I dont know who asked first. HmmTheoretically, it certainly is possible. Chang Haonan replied firmly: However, a binary computer cannot completely imitate the operation of the human brain... Of course, in fact, we do not fully understand the operation logic of the human brain..." In short, the current research focus is still on processing static images, that is, photos. It may take a long time to recognize dynamic images, especially dynamic images with complex angles... I dont know if it was an illusion, but when Chang Haonan said this, he seemed to hear someone letting out a sigh of relief... (End of this chapter) Chapter 952 aviation culture Chapter 952 Aviation Culture Immediately afterwards, Chang Haonan described to them the related concepts of computer vision, manifold recognition, and level set methods in the simplest language possible. At first, Qiao Chenqing tried to understand. ??However, he really specializes in the art. After a few words, there was only confusion in his eyes. So, in order to save his ears and brain, he quickly interrupted Chang Haonan, who was already in a state of mind, and changed the topic slightly stiffly: Comrade Haonan, I remember you just had something to say, right? Chang Haonan was stunned at first, thinking that I still had a lot of things to say... Fortunately, he quickly came to his senses and realized that he was not giving a technical seminar. ?What Qiao Chenqing said should be from the very beginning, when the other party asked if he needed a kh55 to go back and study. ?Thinking of this, Chang Haonan scratched his head in embarrassment: "Oh, what I wanted to say at the time was that you can ask the Electronic Technology Group and the aviation industry if they are not interested in this round. If they feel that it is not urgently needed, I would like to keep one with us. The groups side. "Um?" Qiao Chenqing was stunned: Didnt you say before that it wouldnt have much effect Obviously, he was confused by Chang Haonan''s somewhat inconsistent words. The latter smiled lightly and explained: Its true that technically it wont be of much help, but when external conditions permit in the future, I plan to build a museum and put these things in it, which can be regarded as a testimony to this period of history In the previous life, China''s military industry was in a relatively chaotic state from the late 1980s to the early 21st century. Due to the extremely drastic changes in the organizational structure, the memories and records of outsiders, not to mention practitioners, and even those who have experienced it may not be completely accurate. Many commemorative objects have even been damaged or lost. In this context, there are still many intellectual errors in various museums and exhibition halls... In short, it is very uncomfortable. Therefore, ever since Lao Wu got a piece of the wreckage of a B2 bomber from the Balkans, Chang Haonan has been thinking about how to preserve or even promote this piece of history in the future. After hearing Chang Haonans answer, Qiao Chenqing fell into silence for a while ??Although he took the initiative to switch the topic, the jump in Chang Haonan''s answers in these two paragraphs was really a bit too big. ?It''s like someone was talking to you about mathematics one second, and suddenly started talking about the evolution of species the next second, and then talked about God''s creation of Adam and Eve at the speed of light... Finally I had to say: As expected, he is a chief planner and thinks about the long term... Just at this time, everyone had returned to the crowds near hangars 3 and 4. Therefore, it was not suitable to continue talking about the topic of kh55. In the end, everyone really continued to talk along the promotional topic started by Chang Haonan... Comrade Haonan. A voice suddenly came from another direction. ?Chang Haonan turned around and saw a fat man with a kind face and a pair of brown-rimmed glasses. ??Although the rank cannot be clearly seen in the cotton coat, he seems to be about the same age as Qiao Chenqing, and he is obviously a leader of the Air Force. My name is Jing Yanlong, and I am in charge of publicity in the Political Department of the Air Force. Respect the director? ?Chang Haonan said almost subconsciously. ?This slightly rhetorical tone made Jing Yanlong stunned: Have you heard of me? ?His level is certainly not low, but his position is honestly not very impressive. ?In particular, Chang Haonan is not even a soldier, and he had nothing to do with the Air Forces publicity business in the past. You shouldnt even have heard of his name. "Well" Chang Haonan''s face froze, and his brain quickly organized some words: I have heard other leaders mention that you are very good at organizing promotional activities and promotional materials... To be honest, this is not a compliment. The reason why Chang Haonan knew the name Jing Yanlong was because the other party had... or would organize the creation of a nationally famous sitcom. "The Story of the Cooking Class". Of course, this drama was released in 2002, so at the moment, Chang Haonans praise still makes Jing Yanlong a little embarrassed: Its a prize, its a prize I want to ask, there is an aviation museum in charge of the Air Force in the CP area on the outskirts of Beijing. Have you been to it? Chang Haonan nodded: When I was in school, I went there on the weekend, but I didnt go in, so I walked around outside. When I started working later, I had no time. "Yeah... the easiest time is when I was in school." Hearing him mention things from his school days, Jing Yanlong couldn''t help but smile. ?However, after just a short moment, he brought the conversation back to the original topic: But its no shame that you didnt go in. To be honest, theres really nothing to see in there Although Jing Yanlong himself is in charge of publicity, he does not protect his shortcomings at all. Or rather, it is precisely because he is in charge of publicity that he knows what the current situation of this part of the work is. This is inevitable. Others chose to lower their stance when they came up. Chang Haonan could not say anything more. Instead, he had to help the other person make amends: After all, the history of our countrys air force is still short, and the pressure to change equipment is great. There are very few things that can be put into museums. Your propaganda department is also a clever woman who cannot make a meal without rice. In fact, this is also true. China''s own aviation industry has only been developing for 50 years at fullest. There are at least 30 years of technology transfer and imitation. The new equipment is not even enough for the troops, so how can it be thrown into a museum for retirement? In the previous aviation expo, a J-11 that had been retired at the end of its service life was displayed, but it was not on display for long before it was taken away to use its remaining heat... Jing Yanlong climbed up the pole directly: "So what I just wanted to say is that if you have ideas in this regard, you might as well consider cooperating with our Air Force. Although the aviation museum is a little remote, the internal space is definitely large enough, and the theme is relatively close to the Qin Group. Why bother? Do it again and again...right?" Chang Haonan glanced at the other partys smiling expression and said to himself, use our exhibits to build your own exhibition hall. This is a wonderful trick of yours... However, complaints are complaints. Jing Yanlongs idea is indeed correct. There are only so many things that China can exhibit, and now they are scattered among military expos and several military museums. It would be a waste of resources if each military industrial group develops its own exhibitions. Its just that he cant take all the good things. At least for a long time in the future, my main focus will still be on research and development. Chang Haonan changed the subject: "So...I just said it casually, I just have this idea. The problem of the exhibits cannot be solved in a short time. It is too early to think about this..." If you really want to say it, I have another suggestion... Jing Yanlong is almost 40 years older than Chang Haonan, so he definitely cant wait for the latter to take a back seat. But just when I was feeling a little regretful, I suddenly heard Chang Haonan say that he had new suggestions. Hence, he immediately looked at the other party with questioning eyes. I still remember the time in 1996 when I first participated in a real military aircraft project, which was the J-8C. The organization secured an opportunity to participate in the Xiangzhou Air Show, and I was fortunate to participate. Chang Haonan replied slowly: I felt at that time that there were actually not many people in our country who were interested in aviation, but the relevant resources were too few and there was no well-guided aviation culture, which led to a somewhat barbaric growth. I have been thinking over the years that if the propaganda department can use... or even promote the initiative and enthusiasm of this group of civil forces, the effect should be much stronger than if we just work hard by ourselves..." (End of this chapter) Chapter 953 New air film hole on M883 Chapter 953 New air film hole on M88-3 At almost the same time that Chang Haonan and others took back the four Tu-160 strategic bombers. Shengjing, the 606th Research Institute of the Aerospace Power Group. Liu Yongquan, who has now been promoted to the chief designer and deputy director of the institute, is currently looking at the computer to review the summary of phased issues that have just been submitted by several design and development teams under him. This is a habit he borrowed from Chang Haonan when he participated in the Turbofan 10 project. When presiding over a project, the latter will occasionally ask its subordinate design teams to submit problems that were newly discovered in the previous stage or that existed in the past but are still not fully understood, and then solve and handle them respectively. It does not mean to come up with a conclusion right away, but to give guidance on the direction of the next stage of work. In fact, this is exactly how the system guided Chang Haonan when he carried out projects through the system. Hence, the improvement of participants abilities is almost immediate. As Chang Haonans deputy, Liu Yongquan was the one who benefited the most from it. So after I started to take charge of the technical research and development work in the institute, I also adopted similar methods. However, he soon discovered that although this approach, which was close to hands-on teaching, was effective, it required high standards and work intensity for the project leaders themselves. As a result, a lot of rest time, which was not sufficient in the first place, was taken up. Ive finished this one too Liu Yongquan muttered to himself, moved the mouse, clicked the save button on the screen, and then closed the document: Then...there are only the last two copies left. He glanced at the time in the lower right corner of the computer and began to think about whether he should take a break. ?At this moment, there was a sudden knock on the door outside the office. "Enter!" Liu Yongquan felt a little lucky. Because you dont have to worry about it anymore. ?The door opened, and a technician in blue overalls walked in hurriedly. Judging from the other partys irresistible expression, its not difficult to tell that there should be good news. Xiao Wan, have you finished the test? The visitors name is Wan Zhonghui, a young man who Chang Haonan had previously tapped from the grassroots level of the Turbofan 10 project team. Considering that Liu Yongquan is currently responsible for the improvement and development of the M88 and SeA series engines, he was given the responsibility to train him. It can also be regarded as a way to see the world. Of course, its young people. Actually, he is already in his early thirties. She is older than Chang Haonan. Just relatively young on the normal development path of an engineer. Thats right. ?Wan Zhonghui nodded and put the folder he had been holding under his arm on his desk: You can take a look at the test results of the new film cooling design of the M88-3 engine. ?According to the pie drawn for Snecma before, the M88-3 engine should basically reach the performance of the earliest M88-1 model while maintaining the same lifespan and reliability. The top priority is naturally to increase the thrust by 10.5% to a level of about 8.4 tons. The simplest and most direct way to increase thrust is to increase the temperature in front of the turbine. ?Of course, in addition to this, there are also a series of upgrades such as reducing the weight of the receiver, increasing the boost ratio, and reducing fuel consumption. However, considering that the M88-3 will share the same core engine with the SeA series engine used by the Falcon Z, especially the shared hot-end components, in order to improve research and development efficiency, the improvement of the combustion chamber and turbine must be given the highest priority. The test report in front of them is a preliminary test of the results of their work over the past few months. I think you can guess it like this, and the result must be in line with expectations. As Liu Yongquan spoke, he pulled the folder in front of him and opened it. The convection heat transfer coefficient along the main stream is similar to that on the turbofan 10..." The voltage drop level is about 10% higher than the previous test... This is determined by the boost characteristics of M88, and this can only be done..." Kinematic viscosity Reynolds number ? He ??held a ballpoint pen with the cap unopened and quickly scanned the contents of the test report line by line. ?According to Chang Haonan''s requirements, the cooling film hole design of the M88-3 turbine part almost completely copied the turbofan 10. Although the heat dissipation principle will hardly change due to different engine structures, after all, there has not been targeted optimization design, so many performances have still declined. Of course, these are all expected. So Liu Yongquan did not make a fuss. Until you see the last item. The Nusselt number along the main stream ??The movements of his hands paused involuntarily, and then he made a slightly curious sound. "Um?" ?This reaction immediately made Wan Zhonghui, who was looking happy, nervous: Mr. Liu, whats wrong? Well. Liu Yongquan raised his hand and touched his chin: This Nusselt coefficient seems to be a bit high... ? Nusselt coefficient is the ratio of convective heat to conductive heat. This number is on the high side, but the convection heat dissipation coefficient does not change significantly, indicating that the conductive heat dissipation is on the low side. ?Of course, in the context of aerospace engineering, the Nusselt coefficient is generally at the two- or even three-digit level. So there is almost no difference between high and low conductive heat dissipation. Even in most cases, designers do not pay special attention to conductive heat dissipation The ratio is really too low. ?However, after thinking for a while, Liu Yongquan still pulled off a piece of paper and wrote down this matter.?????"What if it''s always useful..." ?He thought this while writing a few words quickly. Wan Zhonghui, who was opposite him, didnt know what Liu Yongquan was thinking. He only saw that the latter had specially written a note, so he became even more nervous: Thendo you need to re-? Liu Yongquan quickly waved his hand: No, the higher temperature is within the allowable range. Specific to the project at hand, it will not have any qualitative impact on the heat dissipation effect. As a technician with an engineering background, Liu Yongquan still has a relatively clear understanding of his abilities. It is better to leave things like exploring theoretical principles to people who have expertise in this field. Then our next step Wan Zhonghui''s tense expression relaxed, and his expression turned to joy. During the Turbofan 10 project, he could only be considered a participant at best. This time, he was at least responsible for a small part of the work. Although it is not the core content. But at least its a good start. The natural next step was to hand over the new turbine design to Snecma. Liu Yongquan replied with a smile: After all, we only did component-level testing. As for the effect after installation, that is the task of the French themselves. Furthermore, even if we complete the entire testing process, they will definitely have to do it all over again after they return to China. ??The French are not Indians after all, they always have dreams. ??This time I came to Hua Xia out of necessity, but it was impossible to just lie down and become the shopkeeper. As he spoke, Liu Yongquan leaned his head, ready to take a look at the calendar placed beside the table. ?However, Wan Zhonghui reacted faster and said immediately: Today is Thursday, November 15th. "Um" Liu Yongquan leaned back in his chair and pondered for a moment: In this case, you go back and rest first. He said to Wan Zhonghui: When will I meet with Snecmas technical representative specifically? I will let you know then. "good." Wan Zhonghui didn''t doubt his presence, just nodded, turned around and walked out of the office. He also closed the door conveniently. For this test, he had been running continuously for nearly 20 hours. After relaxing for a while, he was indeed a little sleepy. And the other side. ?After confirming that Wan Zhonghui had left, Liu Yongquan immediately grabbed the microphone on the table and made a call to Chang Haonan''s office. ?It is very similar to the scene when your mentor is asking the master for help The cooling design of Turbofan 10 is the only part that Liu Yongquan was not fully involved in. From theory to engineering, Chang Haonan was directly responsible for almost everything. Although the latter left behind quite complete technical information, Liu Yongquan still inevitably felt a little guilty. Hence, he hoped that Chang Haonan could communicate with the technical staff at Snecma. At least sit on the spot. To avoid the dilemma of the other party asking a question and being unable to answer it. However, after the call was connected, the voice that sounded over there was not very Haonan''s voice. ?According to the line settings, when the group leader does not answer the call, it will automatically be transferred to the corresponding office manager, that is, Zhang Liangping. Sorry, Mr. Chang is on a business trip and its not convenient to answer the phone right now. You can tell me the matter first and I will convey it to you, or you can try calling another day... Im sorry, Comrade Liu, I dont have the right to reveal Mr. Changs specific itinerary... After hanging up the phone, Liu Yongquan sighed helplessly. ??He originally wanted to try to see if he could call Chang Haonan''s cell phone, but he hesitated for a moment after picking up the receiver, and finally put it down. If the other party is on a business trip, even if you contact them, it doesn''t mean much. "well" Liu Yongquan sighed and took out a black leather notebook from the bottom drawer of his desk. You still have to rely on yourself He muttered something quietly. At the same time, the notebook was opened to a page in the middle. The above is densely packed, and almost all of the records are formulas and schematic diagrams. Obviously, this is a research note. Judging from the bookmarks and notes that are almost everywhere around him, Liu Yongquan spent a lot of time on this. In fact, this is exactly what he concluded from a technical document on cooling design. ?Of course, I also received help from Chang Haonan in the process... Looking at the contents of the notebook, Liu Yongquan''s somewhat anxious heart finally calmed down a lot. On the one hand, what Chang Haonan left behind is very comprehensive, and it is indeed of great help to him. On the other hand...the other party is a partner after all, not a superior. If it doesn''t work, just use technical secrets as an excuse to have no comment. After thinking about this, Liu Yongquan calmed down, took out a red ballpoint pen from the side, and marked the word "meeting" on the calendar page for next Monday, November 19th... (End of this chapter) Chapter 954 The speed of learning cannot keep up with the speed of new knowledge generation Chapter 954 The speed of learning cannot keep up with the speed of new knowledge generation the next day. France, Paris. ??Snecma''s technical director Ian Vista is working with his assistant Arthur Mondock to process some administrative documents related to the company''s operations. It was already Friday afternoon, and the two of them inevitably felt a little tired ?Before today, Vesta had led his entire team to work for three full weeks in order to understand and thoroughly understand the technical information of the M88-2 engine from China. ?The miscellaneous things they have on hand now are also accumulated because of this. You must know that it is not an easy task to make old Europe work overtime. Whats more, three weeks in a row. Not to mention his subordinates, even Vesta himself felt a little unable to hold on. Fortunately, the process is tortuous, but the result is okay. The technical materials of the Huaxia people''s brain have finally been mastered by them. Especially many faults or defects that had no clue before, now have relatively complete ideas - From the phenomenon during the test, to the causes, to the solutions. Only some of the toughest bones are left, but it seems to be just a matter of time. Dr. Vesta. ?Perhaps in order to resist tiredness, Mondoc broke the silence first: After we finish researching the materials on the M88-2, I hope to bring a team of backbones to China in person to participate in the next upgrade plan of the M88-3. Hearing the assistant''s request, Vesta raised his head, with some approval in his eyes, but he did not respond immediately. Rather, he asked: Tell me what you think? ?Mondoc was not impulsive, so he gave the reason almost without thinking: "Currently, our manpower stationed in China is lacking in both quantity and level. There is no way to effectively participate in the engine improvement project. Essentially, they are only responsible for sending the technical data provided by the Chinese people to our data clerks. " If we continue to maintain this state of affairs, it will be difficult for us to keep up with the Chinese people. Now, we have basically fully understood the key design ideas of the M88-2 engine, and I speculate that on the Chinese side, the upgrade progress of the M88-3 engine should still be at a relatively early stage. So, if the efficiency is high enough, I think we should be able to keep up with their progress! Obviously, the work of the past few weeks has made Mondoc feel that he is ready. After listening to his explanation, Vesta, who was sitting opposite, smiled: Actually...thats exactly what I meant. You are right what you just said, we cannot just be content with following the Chinese. ?He said taking off his glasses and gently rubbing the sides of the bridge of his nose: "My plan is to strive to fully keep up with the progress of the Chinese people in the M88-3 project. When the next step is M88-4, even if it is not completed entirely by ourselves, we should put forward a complete solution before the Chinese people. Upgrade technical solutions! ?Obviously, Vesta also feels that he has done it. The two people who reached a consensus on this matter looked at each other and smiled. It seems that France has already thought about the day when France will regain its prominence in the field of jet aviation. ?However, I want to think about it. ?Vestal himself is an old man and feels a little unable to hold on at this time. ?So, he stood up and stretched his muscles, and then looked at the time. ?However, there are still about three hours until get off work. How about...getting off work early? ??Vista looked at Mondoc who lowered his head and was busy again, and his mind had already flown to his small manor in the south of France. Due to work, he has not been there for almost a month. Arthur, we... He wanted to say that we should get off work directly and do the rest of the work next week. As soon as the words were spoken, the phone on the table rang. To be honest, Vesta hated those calls on Friday afternoons. Especially at this time. He was already extremely exhausted. ? And a new phone call will most likely mean a new job... ?But no matter what, its still working time now. ?Vesta had no choice but to answer the phone and put the receiver to his ear: Hello, Ian Vista, Snecma. Dr. Vesta, this is Bernard Shore. After the person on the other end of the phone announced his home address, Vesta, who was originally looking lazy, finally became a little more serious: Long time no see, Bernard. ??He said as he sat back on his office chair, then leaned his upper body back on the backrest: "I think...it''s almost late at night over there in China. Is there anything urgent?" ? Bernard Shore, Snecmas Liaison Officer in China. ??This is the boss of the "documentaries" that Mondoc just mentioned. "That''s right, Dr. Vesta." ?The voice on the other end of the phone was quite serious: "Liu Yongquan, the project leader on the Chinese side, told me today that they have fully upgraded the film cooling system at the hot end of the M88-3 engine, and have successfully completed component-level performance testing, so I hope to hand it over to you as soon as possible. Work, start installation and testing of new components..." Bang! ??In the middle of Shore''s words, Vesta, who had just leaned back on the office chair, jumped up directly. His movements were so agile that it was impossible to tell that he was an old man in his sixties. The hot... hot end has... been upgraded? At this moment, he felt that his whole mind was filled with question marks. On the one hand, Vesta was very sure that he had not heard anything wrong just now. ?But on the other hand, he couldnt quite believe what he heard The overall plan for upgrading the M88-3 engine was only proposed in early September. ?Its only been less than three months? The hot end component...shouldn''t it be the most critical and core part of an engine? For a time, Vesta was somewhat shaken by his decades of experience in the industry. "Well...that''s what China informed me." ?Shore replied: Furthermore, I watched their entire testing process and checked the test results, which indeed fully met the design requirements. ?Vesta opened his mouth, but really didnt know what to say. ?As a result, both ends of the phone fell into a somewhat awkward silence. After a long ten seconds, Shore was the first to lose his composure and shouted tentatively: Dr. Vesta? ?This finally woke Vesta up from the blank state of his mind. Uhwhen will the handover be? He asked almost instinctively. The best time is next Monday. The other party said that the hot end upgrade time is tight, and we hope to complete the actual machine test as soon as possible. Next Monday ?Vesta glanced at the calendar next to him: Okay, I will go there on time "well-" ?After a long sigh, Vesta put the receiver back on the phone with a somewhat stiff movement. ?? And because Mondoc didnt hear what was said on the other side of the phone, and because Vestas lost look was indeed a bit confusing, he still hadnt turned the corner: "Doctor, is this... from China?" "right." ?Vesta nodded, but it was obvious that he was in a depressed mood: Im afraid that keeping up with the progress of the Chinese people will have to be postponed "ah?" ?Mundok couldn''t help being stunned after hearing this. He couldn''t even understand the meaning of the other person''s words at the first time. But soon, a possibility appeared in his mind: You mean...they... ?Mondoc had actually guessed what actually happened, but due to the extreme shock, he couldn''t even formulate words quickly, so he had to use hand gestures instead. Fortunately, Vesta was not prepared to understand what the other party meant, but explained directly: They have completed the design improvement of the hot-end components of the M88-3 engine and want us to prepare for real-machine testing immediately to see if it meets the requirements! ?Mondoc almost blacked out when his guess was confirmed: "But" At this moment, he only felt a little numb. I originally thought that after understanding the situation of M88-2, I could rely on the existing foundation to quickly understand the new technology applied by China on M88-3, and eventually achieve the same progress or even surpass it. But now it seems Your learning speed... seems to be a bit behind the pace of new knowledge generation? This is undoubtedly a huge blow to Mondoc, who has always been smooth sailing. ?After a while, he recovered slightly: "Dr. Vista...I...should I go to China..." According to the previous plan, he went to China to track in real time and even participate in the research and development of the M88-3 engine. The result is now data learning again... Go! Of course you go! ?Vestal took a deep breath: And, this time we both go together! He said categorically: I want to see how those Chinese people designed a new air film cooling system in three months... (End of this chapter) Chapter 955 So whats the cost? Chapter 955 So...what''s the price? The weekend passes quickly. November 19th. Shengjing. In a conference room in Institute 606. ? Ian Vista, who had just gotten off the plane, was sitting at the conference table, looking solemnly waiting for the meeting to begin. Even though he was deliberately hiding it, he could still see obvious tiredness between his brows. For a person of Vesta''s age, the two days of rest before departure is not enough to make up for the fatigue caused by the continuous rotation for more than half a month. ?Besides, with such a big thing on your mind, even if you call it a rest, its actually not a good rest at all. Coupled with the relatively closed environment in the conference room, he even felt like yawning. ?However, Vesta knew very well that he could never engage in the upcoming talks in this state Although it is just a routine work handover, if you feel dizzy, something will definitely go wrong. He bit the tip of his tongue gently, using the pain to wake himself up a little. ?However, this alone is obviously not enough. ?Vesta turned around and looked around at several technicians who were also from Snecma. Including, of course, his deputy Arthur Mundock. ??The latter was currently chatting with Bernard Shore, the technician who called Vista a few days ago, and was obviously trying to understand the recent situation. After hesitating for a moment, he decided to join in the conversation to distract himself. Bernard. ??As Vesta''s voice sounded, the whispers around him suddenly fell silent: I remember you said on the phone before that you were fully involved in their testing process? "Um" Hearing this question, Shore scratched his head in embarrassment: Its not actually participation The cooperation between those Chinese scientific researchers is quite skillful. We dont have many opportunities to intervene. At most, we help to debug the equipment. Most of the time... we can only watch the whole process..." ?Snecmas original intention of sending them to China was to follow them through the research and development process and learn something on the way back. In fact, at the beginning, several people, including Shore, felt good about themselves. You should know that they are all senior in the company. There were even people who participated in the round of technical cooperation with China in the late 1980s. Now that I have to be a student of my former students, my mentality is naturally still different. ?According to the thinking of Shore and others at the time, China should have mastered some tricks specific to CFM56 through some kind of coincidence. As long as they learned it, they would be done. result Its only been two days since the beginning. Strictly speaking, after attending the technical meeting on the first night, Shore was shocked to find that he could not keep up with the other party''s ideas. He even asked a translator to translate the meeting minutes into English. But it still doesnt work. Soon, he realized that what the Chinese had mastered was not some miraculous skill. Rather, it is a set of almost completely new aero-engine design concepts. Learn, child! ?Of course its impossible to learn it so quickly. So, this is the situation now. They only had time to translate the design materials provided by the Chinese and send them back to China. As for participating in the design work throughout the entire process No one has mentioned it for a long time. Fortunately, Vesta is also aware of this actual situation, so it doesnt make it difficult for Shore: Its okay to just stare at the whole process. You should have seen the components they used for testing, right? Of course. ?Shaur finally breathed a sigh of relief. After all, it would be a bit embarrassing if you dont know everything you ask: The parts they have completed so far include the turbine discs and turbine blades of all high- and low-pressure turbines. Of course, only 4 blades of the same number have been produced. After all, it is only a component-level test..." He was interrupted by Vesta when he was halfway through his words: Chinese people have borrowed a considerable part of their aviation industry standards from us. Of course I know this process... ??And the voice of this sentence actually became smaller and smaller as he said it. Because at the beginning, Vesta almost instinctively felt that this matter was quite shameful. But halfway through the words, something felt wrong. Others have borrowed a bunch of industry standards from you, only to overtake you later... It doesnt seem like something to be proud of Ahem ?Vesta had no choice but to cough twice to cover up his embarrassment, and then continued as if nothing happened: I want to ask, have you ever paid attention to the specific design of the cooling system? ?These contents can actually be seen after getting the design plan later. ?But on the one hand, Vesta is feeling sleepy, and on the other hand, it is impossible for them to believe whatever others say. There must be some other information channels as evidence, right? Attention. ?Shore replied: "From a technical perspective, it is still traditional air film cooling, and does not use new technologies such as impact cooling or double-layer walls. However, the internal characteristics of the air film holes are very complex, with non-standard variable cross-sections, and there are Three-dimensional structure "As for the design process, I..." Vesta waved his hand towards Shore: Its enough for you guys to get this information. If you havent kept up with the design stage, you havent kept up... He led a team by himself and spent more than 20 days thoroughly understanding the technical information of the M88-2 engine. Naturally, he could not place any higher demands on his subordinates. However, Shore shook his head: Its not that we havent kept up, its that... At this point, he paused: Yeswe didnt notice that they had a design process "What?" ?Vesta, who was still holding back his tiredness, suddenly stopped feeling sleepy: No design process? "Yes." ??Shore explained: The special-shaped air film holes they used should have been designed a long time ago. On the M88-3, the arrangement of the hole positions was just slightly adjusted..." He obviously wanted to say something more. But at this time, the door of the conference room was pushed open. A group of Chinese representatives headed by Liu Yongquan came in one after another from outside. Im sorry to keep you waiting. Liu Yongquan took the initiative to step forward and shook hands with Vesta: On behalf of China Aerospace Power Group, I welcome our partners! ?After some non-nutritious and polite greetings, the two parties, each with their own thoughts but the same goal, sat down at both ends of the conference table. ?Everyone has a technical document in two languages ??laid out in front of them This is of course only a brief overview. Detailed technical documents, even if stored on a hard disk, can fill a password box the size of a schoolbag. Dr. Vesta. While speaking, Liu Yongquan turned on the projector on the table: Now, let me give you a brief introduction to the main design content included in this handover. ?The representatives from Snecma across the way immediately cheered up and looked at the curtain on the wall on one side of the conference room. When no one was paying attention, Liu Yongquan took out the black notebook that he had prepared long ago, and under the cover of the projector main unit, he spread it out in front of him: According to the upgrade plan we have agreed upon before, the main improvement of the M88-3 engine is the thrust envelope at altitudes below 10,000 meters and speeds below Mach 0.9 He first briefly introduced the expected effects of the upgrade and the current upgrade progress, and then got to the point: "In order to optimize thrust without increasing fuel consumption or affecting the cycle life and reliability of the aircraft engine, we redesigned the entire hot end of the M88-3 engine, especially the fuel atomization system and the film cooling system. , to obtain a higher temperature in front of the turbine..." ??While Liu Yongquan was turning the pages of the PPT, Vesta finally asked the question he wanted to ask the most: Dr. Liu, less than three months have passed since we first finalized the upgrade route for the M88-3 engine. Can you make such drastic adjustments to the hot end? Liu Yongquan smiled slightly after hearing this. He was actually prepared for this problem: First of all, during this period, we have concentrated all our technical strength on upgrading hot-end components, so the progress is relatively fast. After all, the SeA series engines in the Falcon Z project have to share the hot end with the M88-3. The time is tight and the tasks are heavy, so there is no room for any delay. "In addition, I should have mentioned before that in fact, this cooling system, especially the dustpan-shaped three-dimensional air film hole shown on the PPT, is a mature technology that we have been researching for a long time. As long as it is slightly targeted at M88-3 The engine can be adapted to meet the technical needs..." Actually, Liu Yongquan did not tell the truth entirely The cooling system design of the M88-3 is almost completely copied from the turbofan 10. In fact, there is no specific adaptation... ?Of course, if you say this, it will be difficult for everyones friends. ?Hearing Liu Yongquans explanation, Vista also turned his attention to the curtain again. Then, his eyes widened in an instant. "this" As Shore said just now. ?This air film hole design includes gradient cross-section, gradient aperture, three-dimensional structure, internal microstructure of the hole channel and multi-layer rows, which can be said to have all five poisons. ??Although the test data marked below is indeed very eye-catching, Vesta is a bit afraid to think about how this thing will be mass-produced by then... But at this time, Liu Yongquan started to introduce the advantages and cooling principle of this three-dimensional special-shaped hole again, and Vesta was not easy to interrupt. ?It wasnt until almost forty minutes later that the entire introduction came to an end that he finally got a second chance to speak: Liu ?Vesta quickly stopped Liu Yongquan from opening a new PPT: I would like to ask...According to your design, there are almost 50 groups of air film holes on a single turbine blade, and the internal structure of each air film hole is so...complex. Have you ever considered the issue of production hours? Liu Yongquan raised his head and stared at the frowning Vesta for a while to explain. Then, he let out a vague sigh. "well" "Dr. Vesta, we use the most mature air film cooling technology with the smallest air flow loss. Just by optimizing the air film design, the temperature in front of the turbine is increased by about 110K. This is already the limit of the current technical level. " If you switch to impingement cooling, you can certainly reduce the structural complexity, but it will lead to increased gas loss, affecting about 3-5% of the full envelope thrust, and reliability will also be affected. In comparison, it only consumes more working hours now, so it shouldnt be an unacceptable price, right? (End of this chapter) Chapter 956 Samples are provided by us Chapter 956 Samples are provided by us ?Faced with Liu Yongquans explanation, Ian Vista fell silent for a moment. After all, what the former said makes sense. It is necessary to improve performance without reducing reliability, and without increasing costs and working hours... How can I let you take advantage of all the good things? And compared to the first two, it seems that the third point is indeed a relatively less important thing. After all, the French navy and air force are limited in scale, and they dont actually need many Rafales. This leads to the fact that among the quotations for the first few batches of products, the shared R&D expenses actually account for the majority, while the production costs are only a small part. Hence, the increased cost of engine manufacturing is not obviously reflected in the price of the whole machine. Not to mention, the bare metal price of Rafale is only about 60% of that of its competitor Typhoon. ? Even if the price rises slightly, as long as the performance can keep up, the overall advantage will still be great... However. Money, after all, is only one aspect. The world is material. It does not mean that if you have money, engines can grow out of thin air on the production line. The problem is still working hours. ??As a veteran who has been immersed in the field of aviation development for most of his life, Vesta naturally does not only talk on paper. On the contrary, he actually came from a factory and has a fairly clear understanding of the production process. ??As for the design currently released on the PPT, compared with the simple fan-shaped air film hole used on the M88-2, the processing difficulty is not at the same level. It takes at least 3-4 times as long to process each leaf. Equivalent to a direct increase in production capacity to about 30% of what it was in the past. ?This still does not take into account the problem of reduced yield caused by complex processing. In actual operation, it is not an exaggeration to directly reduce it by an order of magnitude. ?Of course, if this is only the case with the M88-3 engine, it is not unacceptable. In any case, the installation target is Guofeng, the slower it is, the slower it will be. But as Liu Yongquan said just now. In the future, the SeA series engines will also use this hot end design. ?That is the driving force for Dassaults business jets and even the regional passenger aircraft product line that may appear in the future. This demand is still slightly larger. Furthermore, the civil aircraft market is an open, or at least semi-open, competitive field. If there is a real delay in delivery, it is not something that military planes can just punish themselves with three drinks and get over. ?Liquidated damages must at least take a big wave... For a while, Vesta was caught in a dilemma. but ?He soon realized that he seemed to have nothing to worry about Because the design process is now controlled by others. Snecma is said to be a partner, but in fact it doesnt have much say at all. Furthermore, when the M88-3 indicator requirements were mentioned before, working hours were not mentioned. ?At Dassault, there are quite a few Rafale Cs that have already built their airframes and are waiting for their engines to be installed and delivered. ?Whether it was from the perspective of the contract or the actual situation, he had no possibility of rejecting this design plan. There is no choice. If it really doesnt work, we can only consider expanding the scale of the factory. Mr. Vesta. ?At this moment, the voice from the opposite side finally woke Vesta out of her thoughts. The person who spoke was naturally Liu Yongquan: "Now, we have introduced the main performance of the high and low pressure turbines after the upgrade. Next, in order not to delay the development schedule of these two engines, we hope that you can complete all installations by the end of this year...and by February next year at the latest. Testing so that we can start the next phase of design work..." ?) ?Hearing this request, Vesta, who had just managed to calm himself down, was shocked: Waitwait. He quickly stopped Liu Yongquan: Today is already...November 19th. ?Vesta pointed to the watch on his wrist and said with a ghostly expression: After we go back, we still have to sort out the information, verify the process, and organize production... We can only conduct the test after the quality has stabilized. And there is a Christmas in the middle. How can we get the test results out in such a short time? "Hmm..."???In fact, this film cooling solution was proposed by Chang Haonan after all, and it has been tested at the component level, so Liu Yongquan is quite confident. The next step of the design does not really have to wait until the test is completed before it can start. . The reason why I said that just now is just to increase the strength of Snecma. ?Its just that Liu Yongquan did forget about Christmas and thought that the end of January was just before the Spring Festival. A little embarrassed. ?However, at this critical moment, you must not swallow what you say, and you can only continue to act according to the script: Then...according to your estimation, when will this round of testing be completed? In fact, from a technical perspective, component installation and testing can also be done directly in China. ? It''s just that Snecma is the de facto "Party A" after all, and it has to check it, so it specifically stipulates the ownership of each test in the contract. ?Vesta did not respond immediately, but lowered his head and pondered for a moment. Probably...we can try to complete the entire project by June next year. This answer directly made Liu Yongquan laugh: Dr. Vesta, lets not talk about M88-3 for now. "According to Dassault''s plan, the first prototype of Falcon Z will fly for the first time in 2003. If the test of a hot-end component is delayed until June next year, how are you going to ensure that it will be delivered to Dassault before the end of 2003? Provide the SeA650 engine for the first flight? "this" ?Vesta was a little speechless. When the SeA series engine development plan was finalized, the development of the hot end was completely handed over to China, so he did not expect that the other party would come up with such a complex design. Now facing the construction deadline issue, I am really sweating. And Liu Yongquan is naturally pressing forward step by step: In addition, if a breach of contract is caused as a result, will the liquidated damages be borne solely by Snecma? The atmosphere that was harmonious a few minutes ago suddenly became a little anxious because of this sentence. For a while, the conference room was quiet and only the sound of Vesta''s slightly heavy breathing could be heard ??The old man had not had much rest to begin with, and he had just managed to cheer himself up before the meeting started. Now that he was so aroused, he actually felt a little dizzy. Liu Yongquan, who was sitting across from him, also noticed that Vesta''s body was shaking slightly, and his heart sank suddenly. He thought that maybe I had fired too hard just now and made the old gentleman faint... Fortunately, the latter quickly opened his eyes again: From the implementation of drawings to products, the time required for this process is determined by the specific design. The plan you came up with is so complex, so we naturally need to spend longer time preparing for testing. This is normal..." Liu Yongquan finally breathed a sigh of relief when he saw that everything seemed to be normal in Vista. ?However, he didnt dare to use too much force. ??If the other party is angry to death in China, it will undoubtedly not be a good thing for both parties. ?So, Liu Yongquan temporarily decided to delete the remaining parts of the script and fast-forward directly to the part where the picture is unclear: So be it, Dr. Vesta. ?He deliberately acted like "I really can''t do anything to you": We at Huaxia Aviation Industry Group can provide a complete set of finished turbine parts required for installation and testing. You can directly start the testing process after you take them back, and then give us feedback on the results. Of course, in accordance with the provisions of the agreement, we will still provide the production-related process and technical data. If you later want to reorganize production and testing yourself, we will not interfere. ?Vesta frowned slightly. ?This solution sounds like the best of both worlds. The test itself actually does not take long. If the samples are readily available, it will not be difficult to get the results before the end of the year. The development of SeA series engines will not be affected. As for Snecma''s production, it can proceed normally according to the plan, and there is no need to hurry up or slow down in order to match the efficiency of China. But somewhere, he just felt like something was wrong. Sodo you have a ready-made sample in hand? ?Vestal decided to confirm some more details. "No." Liu Yongquan shook his head: We have used all the previously produced samples during our own testing. ??Vesta thought to himself, "I''m afraid you''re kidding me. If there''s no ready-made product, wouldn''t we have to re-produce it, which saves the time of process verification?" ?However, before he could think of what to say, Liu Yongquan had something else to say: However, we can guarantee to produce a complete set of new samples within ten days, which will give you at least a month. Considering that the content of this round of testing does not involve the issue of the full life cycle,... one month should be enough. (End of this chapter) Chapter 957 The new tricks of the Chinese people Chapter 957 The new tricks of the Chinese people Ten...ten days? After Liu Yongquans suggestion was made, not only Ian Vista, but also several other French representatives sitting next to him were shocked. ?Although they do not have as much experience as the former, they can judge the approximate construction period based on the design drawings alone. But the basic concepts are still there. ? Turbine blades are all produced in batches. Although the time required for a batch of 200 pieces and a batch of 20 pieces cannot be said to be exactly the same, it is certainly not 10 times the same. So, even if you only produce a few dozen pieces that need to be tested, plus the turbine disk, the time spent should be calculated on a monthly basis. Considering that this is a brand new product, it is still in the production capacity ramping stage, and it is not unusual to use it for two or three months. ?This statement is 10 days, which is really outrageous. Thats right. Liu Yongquan nodded with a confident expression: Before the end of November, we will definitely deliver the test samples to you with high quality and quantity! ?At this point, the French are completely speechless ? Others are even responsible for preparing the samples. You only need to go back and go through the process to test it and then sign it, and you can start the next phase of research and development work smoothly. This is not about putting food in your mouth. Instead, put it directly into the mouth. Only the "chewing" action remains for them to complete. ?If this still goes wrong, Snecma wont have to worry about M88-3 and SeA650. Go straight back to clean up, find a French stick and beat yourself to death. From now on, we will sit at the same table as Indians in the international arms market. So, although there was still a question mark in Liu Yongquan''s mind about the "ten-day" cycle, Vesta really couldn''t dwell on it anymore. ?So, after another non-nutritious ramble, the meeting finally came to an end. ?Kevista came here in person because he wanted to clear up some doubts. At the end of the meeting, the previous doubts were indeed resolved. But there are more new doubts... And he is obviously not the only one who has the same idea... In the car returning to his residence, Arthur Mondoc specially sat next to Vesta: Doctor, is the 10 days they gave you really okay? "Um" The latter was leaning on the back of the seat at this time. He was obviously exhausted to a certain extent, but he still thought for a while and replied: I cant say. ?Vestal shook his head: It cannot be ruled out that the other party prepared a second set of samples in advance, and then specifically said it would take 10 days to prepare a new one, which caused us to misjudge their production efficiency. You know, the production of hot-end components is the most profitable part of the entire aerospace industry chain. It is very likely that the Chinese people want to use this method to get these orders. It should be said that Vesta''s guess is relatively accurate. This is indeed Chang Haonans ultimate goal. ?However, in the face of a conspiracy, there is no point in just guessing the other party''s purpose. "Dr. Vesta, Dr. Mondoc." At this time, Bernard Sean, who was sitting behind the two of them, also came up: "With all due respect, based on what I have observed, I think... what they say is very likely to be true." ?Hearing someone raising different opinions, Mondoc immediately turned his head: Have you seen their production process? The R&D agreement signed by both parties does not involve specific production. Therefore, even if Sean cannot participate, he can still rely on the design and testing process, and the Chinese people cant say anything. But the other party can openly refuse to let Sean have contact with the production process. Thats not true. As expected, Sean shook his head: "But I have come across relevant documents about the first batch of samples they used for testing." With one sentence, Vesta, who was already drowsy, suddenly opened her eyes. After a short pause, Sean continued: It wasnt until the 15th of last month that the design team on the Chinese side issued the formal production requirements for the first time, and it has only been a month since it was fully completed. "Considering that there is about half a month spent on component testing, their first production will only take half a month at most. If we exclude the time for equipment debugging and process parameter testing, 10 days...I think there may still be some room left." This clear answer made the atmosphere a little cold for a while. ?Mondoc originally believed that China had used some small tricks, but after listening to Seans analysis, his mind finally calmed down As the latter says. It is always impossible for the first batch of samples used for testing to be fake. No matter how you calculate it, it only takes two and a half months from signing the upgrade agreement to coming up with a mature heat dissipation design. ?Of course, the Chinese certainly did not start preparing for the upgrade after reaching an agreement. ?But even so, time is still tight. It is impossible to give the Chinese people a month or even a few months to slowly organize production. That is to say ?Mondoc''s face gradually became solemn: Chinese people really have some kind of processing technology that we havent mastered yet? In just over a year...or even in the span of more than two years since China first publicly displayed that mysterious third-generation engine in 1999, their entire worldview has almost been reshaped by the Chinese people. At first, everyone just thought that the Chinese people had mastered some technical information of the AL31F or F110 through some means, and combined with their previous technical accumulation on the second-generation engine, they came up with a usable third-generation engine. In fact, the reason why Snecma came to Huaxia in the first place was because of the mentality of treating a dead horse as a living horse doctor and believed this statement. ?However, they soon discovered that the Chinese people had their own set of things in the entire aviation design level, and they did not just take other people''s plans and simply modify them. This led to the cooperation between the M88-3 and SeA series engines. ?However, the abilities of these Chinese people seem to go beyond that... You can always come up with new tricks for me.jpg I have a feeling. ?Vesta looked through the car window at the sunset gradually setting on the horizon, with a little loneliness in his eyes: The Chinese people may soon completely surpass us in the field of aviation development... ??Mundok next to him frowned slightly, as if he was unwilling to hear such a judgment: Thats not necessarily the case. At least they are working on large bypass ratio turbofans, as well as turboprops and turboshafts that output shaft power... But before he could finish speaking, he was interrupted by Vesta waving his hand: It doesnt make any sense to say this. "The Chinese aircraft engine model is indeed still very imperfect, but this is because they are developing too fast, so fast that they have already developed without having time to accumulate enough experience, manpower, funds, market, etc. Developed sufficiently advanced technology. But having said that, the aviation manufacturing industry is an industry that relies on technology after all. As long as they have the technology, the first few things will only happen sooner or later..." As an old man who has experienced the golden age of the French aviation industry, Vesta can see very clearly at this critical moment: Now, we, and perhaps the Russians as well, have by chance been the first to realize the terrifying development speed of the Chinese, so we have gained some advantages in cooperation. But it is impossible for other people to remain blind like this forever, so I judge that the Chinese people may soon set off a new wave in the world..." ?Although it may sound harsh, everyone in the car understands that Vesta''s judgment should be correct. But if the Chinese people continue to develop at this rate, will they be suppressed by the Americans like we were back then? Sean behind the two of them suddenly intervened and asked: After all, Boeings share of Chinas and even the worlds aviation market is rapidly shrinking, and if the Chinese people also jump in and prepare to take a share of the pie, their lives will probably be even more difficult. In the long run, it will definitely happen. ?Vestal replied almost without thinking: Actually, in the first few months of this year, the United States had very obviously made moves against China, but before they had time to start, the plan was disrupted by the attack. Chinese people are not stupid, they know what to do when, so they were very flexible this time. "In the next few years, when more people in the United States make money from the Chinese market, if they want to target China, I''m afraid they will have to wait until the day when China truly threatens them..." Such a judgment caused several people around him to fall into silence for a while. Then lets After a while, Mondoc asked hesitantly. As long as the European Union is here, there is nothing to worry about. ?Vesta closed her eyes again, preparing to rest for a while before returning to her residence: At least in the foreseeable future, the Chinese people will have far less negative impact on us than on the United States, so the faster they develop, the more they can help us share the attention of the United States. On the other hand, if the EU is gone, there is no need to worry... (End of this chapter) Chapter 958 How to identify an aircraft carrier? Chapter 958 How to identify an aircraft carrier? It is naturally impossible for the delegation from Snecma to wait in Shengjing for ten days. As for the idea of ??further cooperation, although there is one, it is impossible to decide on the spot. Therefore, after agreeing on some details the next day, Ian Vista and other core members of the technical team returned to France. ?Only a few people were left, and together with Bernard Sean and the others, they were waiting for China to officially deliver the batch of samples for testing. Liu Yongquan, on the other hand, reported the meeting status and of course the new production needs to the group level as quickly as possible The technical team of Haojing Institute of Optics and Mechanics has successfully assembled the first ultra-short laser processing equipment for mass production at Liming Factory. However, it is still in the process of debugging and testing and will not have the ability to actually put into production before the end of the year. . Therefore, at least for now, this batch of M88-3 parts still have to be handed over to the machine in the Torch Laboratory for hole making operations. ?However, since the technology development stage has been basically completed, including even the parts of the M88-3, which are not produced for the first time, Chang Haonan only needs to handle it. The specific work at the software and hardware level can be completed by Li Yabo and Academician Hou. ?Of course, this is not because Chang Haonan deliberately wanted to be a hands-off shopkeeper. ??Although he is no longer interested in the M88-3 project, the SeA series engine, as the first mid-to-high bypass ratio engine launched by the Aviation Industry Group, is still very worthy of attention. In fact, Chang Haonan even planned to use the development of SeA650 as a training and production before the official establishment of the WS20 project, so he specially invited many members from the Haofa Group to participate. The reason why he had no time to pay attention to the situation at the Aerospace Engineering Group was because after returning from watching Tu 160 in Haojing last Friday, he only had time to rest for a day before he received a call from the Aerospace Science and Technology Group. Invite him to a project development meeting. As for the content of the meeting, it was naturally about the onboard software of the Haiyang-1 satellite. By coincidence, Chang Haonan had some new ideas on target contour recognition while developing new algorithms for the TORC Multiphysics software in the past few months. Hence, he carefully prepared for this matter in the following period. At almost the same time that Vesta and others boarded the plane to return to France. ?Chang Haonan is in his laboratory, giving a speech to a group of technicians from the Institute of Space Technology, the Fifth Academy of Aerospace Science... Lecture. Thats right. Similar to most of the projects he has participated in in the past. During the project development meeting, Chang Haonan introduced his contour target extraction model in the shortest possible length. But in an environment like a conference room, it was obviously not effective enough for him to speak alone. Besides, there were also rocket technology experts who were in the pure hardware field and had nothing to do with satellites participating in that conference. It was not easy for him to bring everyone together to listen to his long speech. Therefore, after Chang Haonan realized the problem, he immediately chose to leave it as soon as possible. Then find some people related to software development and software and hardware adaptation, and hold a small meeting. Mr. Chang, the parametric active contour model (snake model) you mentioned yesterday has been systematically demonstrated by our institute in the past two years. The speaker was a young technician named Lin Shenming sitting at the head of the left side of the conference table: "But in the end, it was found that although the snake model can provide smooth and closed edge contours that meet pixel requirements, it cannot adaptively control changes in the curve topology, and it is difficult to clearly segment the concave areas of the target object, which is very difficult for ships... uh It is a big problem for ocean feature target recognition. ?Although he is only in his thirties, Lin Shenming is actually the deputy chief designer of the Haiyang-1 satellite ground application system. ??If it werent for Chang Haonan who was standing at the front at this time, he would obviously be one of the most dazzling young talents in the entire Ocean One project. ?Of course, his current problem does not involve any personal emotions. I just have some concerns about the technical route of the active contour model. Although Ocean 1 has solved the hardware problem and can even be said to have acquired the world''s first-class optical system, it is still active in low-Earth orbit at an altitude of 400 kilometers, and the photos taken are still blurry after being enlarged. Hence, it is extremely important to accurately identify specific contours from a bunch of vague chaotic targets. The prerequisite for identifying the outline is to segment the outline shape from a blue or black background. ??If Haiyang-1 is just a conventional ocean resource satellite as the name suggests, then it would not be a big deal if it cannot divide the concave area, that is, the area with an internal angle greater than 180. But as a de facto ocean surveillance verification satellite, this problem is completely unacceptable. It is true that aircraft carriers are very big. However, in the ranks of civilian ships, there is no shortage of giants that are close to or even exceed the size of aircraft carriers. From the perspective of satellite observation, the biggest feature of an aircraft carrierthe all-access deckis similar to the vast front deck of some civilian transport ships. Even a container ship filled with containers can easily be misjudged. In this way, there are only two features that can be easily exploited. First, move the ship island to one side. ??Except for warships such as aircraft carriers and amphibious assault ships that require aircraft carriers, no other ships will use this bizarre design. ? ?Commercial ships will set the driver''s cab as close to the front or rear end of the hull as possible. But the problem is that the ship island is indeed a bit too small. Especially for nuclear-powered aircraft carriers, since they do not need flues, they can make the ship island very small and very far back. ??And it also highly coincides with the deck part. Whether it is radar, visible light or infrared light, it is difficult to identify it if the resolution is insufficient. ? Comparatively, another feature, namely the irregular hull contour formed by the angled deck and the take-off deck, is more friendly. For civilian ships, it is impossible to design such a zhilengbaqiao shape due to floor area ratio considerations. Even small and medium-sized aircraft carriers without angled decks and amphibious assault ships can be excluded to a certain extent. ??And more importantly, a 300-meter-long and 40-meter-wide outline is still barely segmentable with current satellite resolution. So, it is necessary to solve the problem of the recognition rate of sunken areas. Otherwise, if we just divide the angled deck into rounded arcs, it would be almost like an oil tanker, with no features left at all. Mr. Lin is right. ?Chang Haonan strolled to the blackboard: Several traditional active contour models are difficult to be directly applied to our Ocean One image recognition algorithm. But when I was writing a paper before, I accidentally saw an idea, which is to use the variational level set method to improve the active contour model. So far, the main product of this idea is the geometric active contour model, and further, the geodetic active contour model developed by segmenting the variational level set method using the Mumford-Shah functional. Of course, since the level set method has had non-conservation problems in the past, the adaptability of these two methods in the face of curve topology changes is still limited. "However, if you have read my previous article published in the first issue of JCAS, you will know that I have solved this problem from a theoretical level..." After finishing speaking, Chang Haonan wrote the first equation on the blackboard: ?p(F)=e^(-E|F|)/Z. At this moment, another person raised his hand: "Mr. Chang, I have read most of the texts in the first issue of JCAS, but if I remember correctly, the article you published seems to be used for multiphase flow simulation?" "Yes." Chang Haonan happened to have finished writing the equation at this time, so he turned around and replied: But things at the level of mathematical principles remain the same. The difficulty of multiphase flow simulation is also that the topology of the phase interface is highly uncertain, so the moving interface needs to be described as a level set that changes with time. Therefore, this method can be applied to the curve evolution of partial differential equations with almost no modifications After finishing speaking, he pointed to the blackboard again: This is the Bayesian form corresponding to Gibbs formula in statistical mechanics, and the variational method I just mentioned happens to be exactly consistent with it in form The image processing method based on partial differential equations is essentially based on the continuous mathematical model of the image. It is assumed that the image changes following a specified partial differential equation, and the solution of PDE is the desired processing result. As for how to determine the form of this formulated partial differential equation Chang Haonan said as he drew an arrow between image change and partial differential equation: "Generally speaking, it is to compare the desired image change with some mathematical physical process, such as analogizing the smoothing of the image to the diffusion process of impurities. Of course, most processing methods will not be so simple, which is why Issues we need to study at this stage. As far as my current research progress is concerned, as long as I can get to this point. He circled the words "partial differential equations" again: The subsequent numerical solution process is almost not a problem! (End of this chapter) Chapter 959 Target contour recognition Chapter 959 Target Contour Recognition ??Nowadays, in terms of solving partial differential equations, if Chang Haonan says that there is no problem, then at least in China, it is unlikely that anyone will easily jump out to question this conclusion. Hence, everyone has basically agreed that their next step is to find the correspondence between image processing methods and specific partial differential equations. ?However, for a real ocean surveillance system...or for the entire image recognition and processing technology, this is still only the first step. Even the first action in the first step ? Even as far as the "image segmentation" link is concerned, there are still other needs that need to be solved. Of course, the idea given by Chang Haonan is indeed novel enough. ?So soon some people began to draw inferences: Mr. Chang, if a single level set function can divide the image into the background area and the target area, that is, a two-phase segmentation, then if we use multiple level set functions at the same time, can we complete the multi-phase image segmentation? segmentation?" Theoretically, of course. Chang Haonan replied: When an image contains a lot of information and cannot be simply divided into two parts: the target and the background, the multi-phase variational level set problem needs to be considered. However, the complexity of multiphase problems is even higher. After finishing speaking, he turned back and drew a square on the blackboard. We can simply think that each level set equation delimits an area in the image, which is this square. When there is only one square, the image will be, and will only be, divided into two parts: inner and outer. There is no second division. "but." ?Chang Haonan drew a second square on the blackboard and marked 1 and 2 respectively on the two figures: When the second square appears, there is not one more variable, but two more variables, that is, the second square itself, and the positional relationship between the two squares. If the two squares do not overlap, then the entire image will be divided into three areas, namely inside No. 1, inside No. 2, and outside No. 1 and No. 2. If two squares overlap, the entire image will be divided into four areas, No. 1 inside and No. 2 outside, No. 1 outside No. 2 inside, No. 1 inside No. 2 and No. 1 outside No. 2 outside Actually, when we set multiple level set functions to divide an image, the image can be divided into 2^N areas at most, and N areas at least, so the difficulty of classification is not the same. Its not a straight rise, its an exponential rise ?This part of the content is actually quite complicated if described in mathematical language, but Chang Haonan explained it completely in vernacular, which makes it easy to understand. "so" ??The person who just asked the question also understood: We still need to specify a level set design plan before we can specifically complete the regional division of the polyphase diagram? Thats right, but its not complete either. ?Chang Haonan threw the last piece of chalk into the chalk box next to him: It seems like there is just one more degree of freedom in the software design logic, but in fact, in addition to the extreme case of dividing it into N or 2^N areas, additional constraints must be added, and the amount of calculation is always relatively large. Scary. "Even the simplest polyphase image segmentation, which is the use of two level set functions to divide four regions just mentioned, will also have four local grayscale fitting functions, and then use the variational level set method to minimize the total energy spread Function, this process requires solving 8 Euler-Lagrange equations, you can figure out more complex situations by yourself..." "In addition, the probability of capturing two high-value specific targets in one photo is very low. Even if this happens by chance, as long as any one of them can be identified and the image is correctly classified as a key point and sent back to On the ground, the effect is the same. After all, we still have ground analysts and military commanders who dont just rely on the information provided by satellites to fight the war. ?While Chang Haonan was speaking, he briefly wrote on the blackboard the solution results of the fitting function and the average gray value in the classic case. Obviously, unless the situation is very coincidental, such a process must not be suitable to be completed on a spaceborne computer, at least within the next few years. So, this aspect will not be the focus of our research for the time being? ?Lin Senming put down the pen in his hand and moved his wrist slightly and asked. Not necessarily. ?Chang Haonan wiped his hands and sat back at the head of the conference table: If the stability of the equation is relatively good, then the semi-implicit difference scheme can actually be used for numerical solution. There is actually no other obstacle except that it takes a long time..." In short, I have ready-made theoretical ideas and calculation tools. If you, Mr. Lin, have enough funds, computing power and manpower, I can ask Teacher Yao Mengna from our laboratory to be responsible for connecting with you in detail. Although the satellite cannot do this, there is still some value in post-processing the returned images on the ground. "In addition, the field of view can be broadened. This type of technology does not necessarily have to be used on satellites. Aircraft, ships and even vehicle platforms can support much more computing power than satellites. They can be used in the future. Benefiting from it, this is not counting the potential in the civilian field..." ?Although Lin Senming was one of Chang Haonan''s deputies in the Haiyang 1 satellite project, the former is a member of the Aerospace Science and Technology Group after all, and there is actually no organizational relationship between the two parties. Therefore, Chang Haonan could only use the method of drawing cakes to induce a wave of temptation. Mainly because his own energy and resources at hand are always limited. It is better to take advantage of this opportunity to give full play to the ability of the non-staff deputy director of the Science and Technology Commission and mobilize the subjective initiative of the units at the same level. In this way, when building a strategic reconnaissance aircraft or other similar needs arise in the future, you will have a ready-to-use shelf product. It can greatly shorten the research and development cycle. This I will report it to my superiors when I get back. Since it is not directly related to Ocean One, it is naturally impossible for Lin Senming to admit it immediately. But it was not difficult to guess from the almost gleaming look in his eyes that he was actually quite interested in it. As for the expression "reporting to superiors". Its just a classic way of delaying the attack. Comrades, if there are no other questions. Chang Haonan said as he opened his laptop and connected it to the projector on the side: "Then next, I will introduce the mathematical principles of the variational level set model in detail from a theoretical level..." ?There are basically no contestants who can sit in this conference room who have no idea about the field of image recognition and processing. Hence, Chang Haonan can skip the introduction of several common image segmentation models to a certain extent. ?However, he was still unable to finish all the content he had planned in advance on the same day. Mainly the two parts of the curve evolution theory and the variational level set method are indeed somewhat difficult to understand. Especially for some technicians with engineering backgrounds, it is even more abstract to the extreme. Fortunately, the most important person, Lin Senming, majored in applied mathematics, but he followed Chang Haonan''s ideas throughout the process. Even so, this meeting... or a series of meetings lasted for four full days and did not finally end until Friday. Just this week, another thing closely related to Chang Haonan is happening simultaneously without him knowing it at all... (End of this chapter) Chapter 960 Do you have to rush to be nominated for academician? Chapter 960: Do you have to rush to be nominated for academician? ?During the time when Chang Haonan was concentrating on the variational level set method, a major event happened in the Chinese scientific research circle. The list of new academicians for 2001 has been officially released. This is the first time that China has synchronized the academician selection process of the two academies in a systematic and standardized manner. Of course, considering that the Chinese Academy of Engineering was only established in 1993, it has not been ten years old yet. Therefore, in order to fill up the quota, the number of additional candidates every year must be slightly higher than next door. For example, this year, there are 56 people in the Academy of Sciences and 81 people in the Academy of Engineering. 137 new academicians may seem like a lot, but after being spread among universities and scientific research institutions across the country... ?That is indeed pitiful. You should know that even after this co-optation, the total number of academicians of the two academies is still only 653 and 616 respectively. ?There are many people here who have long withdrawn from the front line of scientific research and only exist as benchmarks and monuments. ?Therefore, if any school or unit can produce an academician, it will not only add glory to one''s appearance, but also actually change one''s destiny. Correspondingly, if there are no academicians, or new academicians cannot be elected for a long time, or even if the succession of academicians fails, and the number of academicians decreases instead of increasing, it will inevitably be a dwarf in front of peers. The Aviation Power Group is currently in such a situation. ???????????????????????????????????????????????????????????????? There is not even a single academician in the official archives of such a large central enterprise. In fact, it stands to reason that Liu Zhenxiang, as the former director of Institute 624, should be considered a member of the Aviation Power Group. However, after the completion of the SB101 high-altitude platform, due to a certain person''s relationship, he transferred his organizational relationship back to Beijing Hang University and became a professor. At that time, it was still the period of the Aviation Industry Corporation. Although the 624th Institute was definitely not willing to do so, for the senior leaders, considering Liu Zhenxiangs own wishes and the fact that there was no shortage of academicians in the entire aviation industry system, they finally gave him the opportunity. Let go. ? In the end, it didnt matter if the two parties separated. A few years later, the Aerospace Power Group was dumbfounded. In the past, all the academicians of the head office were from the aviation industry, and I didnt get involved in any of them. At this time, Liu Zhenxiang has almost brought out the first batch of doctors, and he wants to transfer their files back to Institute 624... How about playing? It is simply unrealistic. Of course, at the beginning of the century, it was not uncommon to have dual or even multiple academician appointments (that is, one academician held formal positions in several units at the same time). But the Aviation Power Group cannot afford to lose this person. Would rather not have it. In fact, from this perspective, Chang Haonan himself dug a hole for his new owner. But no matter what, the problem always has to be solved. ?Then the only way left is to co-opt. The result... Needless to say, that time in 1999 was not long after the establishment of the head office and the organizational situation had just stabilized, and no nomination was even mentioned. This year, although Yan Zhongcheng and Jiang Hefu were shortlisted, they still failed to make it to the end. The reasons for this are of course more complicated. On the one hand, it is impossible for any circle to be without human feelings and sophistication. Objectively speaking, it is true that a big academician gives birth to a small academician. Institutions that do not have academicians originally will be at a disadvantage. On the other hand, the situation of the Aerospace Power Group is indeed a bit embarrassing. The establishment time is too short. Huaxia''s aviation development level has indeed made great progress in recent years, but after all, the previous achievements were accumulated during the head office period. After the establishment of the new group, there is indeed no model that has been completely settled and influential enough. You cant use the Turbojet 6D to make the selection, right? As for Chang Haonans proof of Poincars conjecture Sorry, that result was published by Beijing Hang University. The reason why the other party did not nominate Chang Haonan this time is obviously to wait until next year''s International Congress of Mathematicians has awarded all the prizes that should be awarded, and then nominate again in 2003. By then Chang Haonan has the qualifications, the honor is strong enough, and the age is not too young. The success of the attack can be 100% guaranteed. Originally, this was almost a clear sign, and everyone was waiting for it tacitly. However, for the Aerospace Power Group, the situation is more embarrassing. ??If their first academician is actually nominated by someone else... ?Well, lets not say its embarrassing, at least its a little short of glorious. It is also easy to chill the people below. So, we have to do something no matter what. ? Lin Zuoming, for this reason, approached General Manager Zhu Linyu. Mr. Zhu, if we continue step by step, Im afraid our group wont be able to successfully nominate an academician within 6-8 years. ?There were no outsiders in the office, so the former didnt say anything formal, but went straight to the point: So I think that the next time, that is, the co-election in 2003, we need to recommend Comrade Haonan as a candidate. Facing this request, Zhu Linyus first reaction was confusion: "Let''s talk behind closed doors. Xiao Chang''s academician quota in 2003...isn''t said to be a certainty, it''s almost certain, right?" Even if we recommend, it will only be ranked behind Beijing Hang University, and there will still be no actual effect? Joint recommendation is of course feasible, but only the first recommending unit/recommender will be given special attention. In fact, Zhu Linyu thought about recommending Chang Haonan this year, but the chief engineer of the turbojet 14 and QC130 is Yan Zhongcheng after all. Although the turbofan 10 is the top priority, it has not yet completed the final production and finalization process. . So I finally chose the latter. As for Jiang Hefu... he just ran with him. Unless Liu Zhenxiang passed away and left no direct disciples in Jinghang, it was destined not to be his turn. In fact, when the group was first established, Zhu Linyu was not too anxious. Logically speaking, as long as the research and development of the Turbofan 10 project is completed, it would be logical to recommend Chang Haonan. Who would have thought that he quietly worked out a ruthless job that shocked the world of mathematics, so much so that he even covered up his achievements in the field of aviation development. However, since Lin Zuoming made this special trip, he had naturally considered these issues. After hearing Zhu Linyus rhetorical question, he couldnt help but smile: If I am recommended to the Academy of Sciences, the priority will definitely be lower than that of Beijing Hang University. At this point, he leaned forward slightly with his upper body, stretched out **** and tapped the table: But Mr. Zhu, what if...we recommend him to the Academy of Engineering? Zhu Linyu''s eyes instantly narrowed, with a surprised expression on his face. But it is fleeting. Although he did not give a specific response, it is obvious that this is a very attractive proposal. ?Seeing the leader''s interested attitude, Lin Zuoming felt relieved and quickly struck while the iron was hot: "According to the current progress, no matter how much excess is left, the turbofan 10 will definitely be produced in the first half of next year. This matter is not only in the aviation field, but also in the entire Chinese manufacturing industry. It is a milestone level event. By then Dont say you cant be elected, even if the voting result is not unanimous, there is a shady secret..." ?Zhu Linyu quickly raised his hand to interrupt: Of course what you said is correct, but... For a moment, he didn''t know what to say. In fact, what Lin Zuoming said was exactly what Zhu Linyu thought at the time. But now anyone who knows something about the inside story has almost regarded Chang Haonan as a half-step academician of the Department of Mathematics and Physics of the Chinese Academy of Sciences. If we continue to push people to the Engineering Academy, it seems that there will be no results. In fact, Lin Zuoming did not need him to explain too clearly: Mr. Zhu, are you worried about the Department of Mathematical Physics? Dont you know that ?Zhu Linyu nodded helplessly. Even though the two academies are tied, even from the perspective of disciplinary contempt, the status of the Academy of Sciences is still slightly higher than that of the Academy of Engineering. It is hard to believe that a person who is almost certain to become an academician of the Academy of Sciences would take the initiative to choose the Academy of Engineering. However, Lin Zuoming almost completely let himself go: That doesnt matter, cant we just ask them to co-opt Comrade Haonan at the same time? With one sentence, Zhu Linyus brain was completely shut down. After a few minutes, I finally came back to my senses from the confusion in my mind: Its not you who will wait... He frowned slightly: It is true that there are 40 double academicians in our country, but that was when the Academy of Engineering was established. In order to increase the influence and persuasiveness of this new institution, senior academic seniors were specially found to join the Academy of Engineering. "In other words, it is not that they need the title of the Academy of Engineering to prove their contribution, but that the Academy of Engineering needs to prove that it is not a grassroots team by granting them the title... And in principle, except for the 94-95 batch, those who have been elected as academicians of the Academy of Sciences or the Academy of Engineering , then he will no longer participate in the election of another house..." Unexpectedly, Lin Zuoming clapped his hands excitedly: "Yes!" "You see, although Comrade Haonan''s qualifications are not sufficient, but only looking at his contributions, which are both theoretical and applied, and are at the forefront of the country and even the world, this is not the same as those of the old predecessors. The nature is the same. If the Academy of Engineering doesnt give him a title, how can he convince the public? " "In addition, you also said that ''those who have been elected as academicians of the Academy of Sciences or the Academy of Engineering'' cannot participate in the selection of the other academy. However, as long as Comrade Haonan participated in the co-election of both parties in 2003 and was elected at the same time, he would not trigger the This is a matter of principle..." Obviously, Lin Zuomings proposal is taking advantage of a loophole. But objectively speaking, it is true that Chang Haonan''s situation is so unfavorable that he is able to take advantage of this loophole. ??Zhu Linyu put his arms on the table, crossed his hands to cover the side of his face, and lowered his head slightly so that people could not see his expression clearly. On the surface, it seems to be judging the success rate of this plan. But only he knew in his heart that he had actually been convinced. Just hope that I can agree with you and be more reserved. After all, as the leader of the unit, it may not be a good phenomenon to just listen to what others say. If thats the case. After a while, Zhu Linyu finally spoke again: Then we will start from next year to help Xiao Chang prepare for this. For examplewell Speaking of this, he thought for a moment: Its a pity that the application for this years National Science and Technology Award has already passed. Next year, next year you can apply for him for the newly established highest science and technology award, in the name of Turbofan 10! (End of this chapter) Chapter 961 "Pre-production" J-10A Chapter 961 "Pre-production" J-10A ?After the week-long technical meeting was finalized, the research and development of Ocean Ones onboard software gradually got on track. Including Lin Senmings actions, they were completely consistent with Chang Haonans prediction ?In just a few days, he pulled up a small team from the Fifth Aerospace Academy that was independent of the Ocean One project team and was responsible for cooperating with the Torch Laboratory to develop multi-phase diagram segmentation technology. Or strictly speaking, pre-research. ??Although China is already a lot more generous in terms of scientific research funding in this timeline, it is 2001 after all, not 2021. Unless a topic is of great importance, the resources that can be allocated are always relatively limited. Therefore, for technologies such as polyphase image segmentation that are obviously going to compete in the future, the usual practice is to set up a project first and promote it in the name of pre-research. When a big project related to it appears, we will wait for the right opportunity to get involved and formally establish the project. . ?Although it seems to be just a roundabout way, it can often obtain several times or even an order of magnitude more funding. ??And because it involves key projects, the impact of completing the same research content will be completely different. As for the Torch Laboratory, as Chang Haonan promised before, Yao Mengna was sent for docking. In the past two years or so, Yao Mengna started from topology and gradually completed her goal of deepening theoretical foundation. Although there is still a certain gap between cheating players like Chang Haonan and those majoring in theoretical mathematics or theoretical physics. But as an essentially applied technician, her level is sufficient to handle most of her job. If nothing else, at least now Chang Haonan can no longer judge the readability of a paper by "even the senior sister can understand it" as he did back then. The polyphase diagram segmentation technology in front of us is right at the interface between mathematical theory and computer applications. ?Its just the right time for Yao Mengna to take the opportunity to practice... Just like that, autumn passes and winter comes. Time has quickly entered December. According to usual practice, the Aerospace Power Group will conduct a year-end work summary at this time of each year and plan the work for the next year. The former is mainly completed by Lin Zuoming and Zhu Linyu. But the second thing is obviously the task of Chang Haonan, the chief planner. Fortunately, the overall development route of the Aerospace Power Group has been decided before the split of the head office in 1998, and until now, the preset time nodes have only been advanced, not delayed. So just take out the cake that was painted that year and refine it a little bit. ?Chang Haonan has already completed this task in his spare time from scientific research. ?Of course, the specific writing and polishing tasks must have been completed by Zhang Liangping. The content is not complicated either. The first step is to complete the production and finalization of the turbofan 10 in the first quarter, and start developing the ship-specific model turbofan 10H based on it. The second step is to complete the overall design of the SeA650 engine and implement installation testing. Third, on the basis of achieving the second item, the research and development work of Turbofan 20 and QC/QD300 series aeroderivative gas turbines will be officially launched before the end of the year. Considering that the core engines of these two models are derived from the turbofan 10, there should be no very difficult obstacles to overcome at least technically. All that''s left are bits and pieces. For example, we started pre-research on the fourth-generation turbofan engine. In fact, logically speaking, developing a new generation of products should be considered a major event. At least it should not be classified into miscellaneous items. But the situation of Turbofan 10 is too special. When the overall design was carried out that year, it was actually planned according to the fourth-generation engine with a thrust ratio of 10. Just because Huaxia was too weak in materials and technology, it had to "shrink" into a model with performance approximately equal to that of a third-and-a-half-generation aircraft engine. ?Hence, the gold content of this fourth-generation pre-research is really low, and it hardly involves any actual technical work. Mainly tracks the current level of basic disciplines in China. Provide some resources to promote it if necessary. When the conditions are met, once the sealed turbofan 10 is released, a fourth-generation engine should be available soon. Since the workload of this process is so small, Chang Haonan often struggles with whether to give the fourth-generation engine a new model. Lets just call the turbofan 10G and be done with it. In fact, what he really needs to work on is the next generation of variable cycle technology. ? Its just that that is still a bit far away, at least it is not an issue that needs to be considered in 2002... However, everything was ready on Chang Haonan''s side, just waiting for the annual meeting to be held. A slightly sudden, but not unexpected invitation was sent to his desk J-10A will undergo a pre-production trial installation ceremony on December 15, 2001. ?Although Chang Haonan was not directly involved in the research and development of Project 10, he made the greatest contribution to the development of the J-10A sub-model. It is normal to be invited to attend. The only problem is that this day also happens to be the day when the Aerospace Power Group was originally scheduled to hold a full-year summary meeting. Even the notice has been sent out, so it is not easy to delay it just because Chang Haonan is alone. So, I had to let others do it for me. Of course, this kind of delivery ceremony is no longer unfamiliar to Chang Haonan. ??Its just that this is the first time to participate in Rongcheng. December in Sichuan Province, although it was not as cold as in Shengjing outside the Guanhai Pass, the cold and humid climate also made him uncomfortable as a northerner. So, before getting off the plane, Chang Haonan specially put on a military coat. Fortunately, compared with the first time he came to Chengdu, his special plane can now fly directly to Huangtianba Airport in Factory 132, saving him the trouble of taking a car on the ground. ?Of course, from another level, Rongfei Group has made a lot of money by selling the J-7F over the years, and it will not continue to use those no-name off-road vehicles that were eager to fall apart at any time on the mountain road. After getting off the plane, Chang Haonan immediately saw the "Three Musketeers" responsible for the development of the J-10 not far below the gangway - Xue Chishou, Song Wenchong and Yang Wei. Compared to the last time we met, the first two have obviously become much older. Especially Song Wenchong. When he was recalled to take charge of Project No. 10, he was actually quite old. By this time in 2001, he was already 71 years old. In fact, in the second half of the J-10A development, Song Wencong had already begun to gradually transfer the command of the project to Yang Wei, who was the deputy chief engineer. As for the two-seat J-10AS that is still undergoing test flights, the latter is directly named as the chief designer. The three of them stepped forward and shook hands with Chang Haonan, or greeted Chang Haonan with a hug. Lets go over there and have a look. After a brief exchange of greetings, Song Wencong raised his hand to indicate the direction of the assembly workshop not far away ?At the entrance of the workshop, the four pre-production J-10As that are about to be delivered are parked. While walking on the road, Song Wencong had already begun to introduce the general situation of this delivery to Chang Haonan. Actually, Chang Haonan knew about it even if he didn''t introduce it. The situation of this batch of aircraft is slightly different from the "small batch production" of the J-11B. The latter is a "small quantity and multiple times" production carried out after the design is finalized in order to speed up the production finalization process and allow the factory to adapt to the production process of the new model. Mainly to quickly improve the process flow and prepare for formal mass production later. It is regarded as a kind of behavior of Party A. For users, there is generally no difference between the technical status and subsequent batches. However, the "pre-production model" of the J-10A is at a stage further ahead of schedule. ?It has completed all the tests required for design finalization, but has not yet officially issued the finalization document. It is equivalent to letting users use it again to see if there are any problems that have not been discovered during the test flight. If there is, then there is one last chance to check for deficiencies before the design is finalized. ?For example, in the original timeline, the first delivery of the pre-production J-10 did not have the ability to use active mid-range bombs, and the landing gear door was also two-piece. It is different from the actual mass-produced model later. So it was later reworked and upgraded to the technical state after it was finalized. ?Of course, the four J-10As in front of us do not have these problems. The -12 has been tested by the J-8C and J-11B respectively last month, and has been finalized with a score of 12 out of 12. The first batch of mass-produced bombs has even arrived at the 1st Regiment of the 1st Air Division. Although the J-10A has not yet had time to conduct live-fire target shooting, there is no doubt that the fire control system has been compatible in advance. As for why "pre-production" is still necessary under this situation, it is obviously just out of caution. After all, it is the first third-generation machine that is 100% self-developed and domestically produced. You can never go wrong if you walk on the safe side. As he was talking, several people had already arrived at the door of the factory. To be honest, although the upgrade plan of the J-10 was almost single-handedly promoted by Chang Haonan, the slim version of the J-10 in his previous life left a really deep impression on him. So much so that when standing in front of this plump version of the J-10, Chang Haonan felt a little unreal. None of these four aircraft had five-digit aircraft numbers, but the tactical numbers 01-04 were spray-painted in low-visibility gray on the sides of the aircraft. As for the mounts, they are two auxiliary fuel tanks that are standard for transition flights - Due to the huge increase in internal fuel volume and the installation of a total of three nearly parallel weapon racks on the belly of the aircraft, one in front and two in the rear, Rongfei directly canceled the ability to accommodate the third auxiliary fuel tank in this position. ??Anyway, the original auxiliary fuel tank in the belly of the aircraft was only a small 800L auxiliary fuel tank, which did not have much impact on the range. These aircraft are to be delivered to Chang Haonan turned his head and asked. Without the machine number, it is impossible to directly determine the equipped unit. ?Yang Wei pointed to Unit 04, the outermost unit. ?Four pilots wearing flight jackets are currently surrounding an Air Force officer with the rank of colonel, and they should be listening to the mission deployment. The 131st Regiment of the 44th Air Division is the unit that is used to painting the big red eagle on its aircraft. (End of this chapter) Chapter 962 The most exciting episode Chapter 962 The most exciting episode It seems that, unlike the situation with the J-11B, the first unit equipped with the J-10 has not been affected by the change in the timeline. Still the "Big Red Eagle Regiment". On the one hand, Mengzi County, HH Prefecture, Yunnan Province, where it is based, is relatively close to Chengdu and has a relatively mild climate. On the other hand, the 131st Regiment of the 44th Division was also one of the only seven night flying regiments in the army in the early years. ?Properly elite Let alone back then, even now in 2001, not all aviation units in the army can take off and perform missions at night. On the one hand, a large number of daytime J-6 and J-7 aircraft are not equipped with radar and cannot operate at night or in low-visibility conditions. On the other hand, troop training levels can easily fail to keep up with improvements in equipment levels. Especially in the current rapid change stage. It does not mean that units that did not have all-weather combat capabilities before were suddenly able to do everything after replacing them with more advanced aircraft. It still takes time to learn and practice. Furthermore, compared with the east, southeast and southwest directions, the air defense pressure faced by southern my country mainly comes from chaotic air situation information rather than a specific powerful enemy. This means that the aircraft does not need to have a large range and bomb load, but has higher requirements for sortie frequency and response speed. It is very suitable as the location for the first deployment of J-10. Chang Haonan and four others circled the first delivery aircraft numbered 01 twice. Speaking of which, how is the adaptation work of the Shenyang 1 pod and the aircraft completed? ?Chang Haonan looked down at the somewhat bare air intake and suddenly asked. The control system of the pod complies with the data bus specification, and there is no problem in cooperating with the aircraft. ?Yang Wei replied: "Currently, the prototype of the J-10AS is still undergoing adaptation tests between the pod and different types of ammunition. Also, the 613 Institute said that uncooled infrared components need to be imported for the time being, and the price of day and night targeting pods cannot be lowered, so the troops We may first purchase a small number of daytime pods without infrared capabilities for trial use..." Chang Haonan naturally knows this. In fact, he gave priority to the development of day-type pods, and he even personally gave the instructions to Lu Guangshun, the chief engineer of the Condor 1. ?However, for these designers of Rongfei Group, it is still a bit uncomfortable. ?Especially in order to improve the multi-purpose capability of the J-10, they almost completely overturned the design plan and started over again. As a result, users dont seem to care much about it. There is quite a feeling of frustration that I have prepared so many functions for you to explore, but you just dont use them. Our air force has always been focused on defensive air control in the past. In recent years, the level of hardware has improved so fast that it is normal for our thinking to be unable to change for a while. Chang Haonan is very open-minded: This kind of thing has to wait for an opportunity and teach people once, so that everyone can realize the importance of the aircrafts multi-purpose capabilities in a short period of time. Speaking of importance, I dont know if you have heard of it, Mr. Chang. ??Yang Wei, who had a serious face, suddenly showed an unflappable smile: "When we first conducted the test of the J-10AS flying the Shenying 1 pod, there were a few guys who were secretly filming around Yanliang Airport. They were hiding well on a hillside, but when the plane took off, the back seat The pilot was bored and looked around using the thermal imaging channel of the pod, and he picked them out right away..." Ive heard of it, Ive heard of it. Chang Haonan was immediately happy: It seems that there is really a spy inside who has received money from foreign intelligence agencies, and as a result, the remaining unlucky ones also followed suit..." For a time, the tarmac was filled with happy air. ?Maybe its because of the pre-production type, or maybe its simply because at the end of the year, many people are busy doing year-end summaries and other things. In short, the scene in Chengdu today is not too big. As usual, the Science and Technology Commission sent Zhang Hongbiao to support the occasion. But there are far fewer other guests. Even Qiao Chenqing didn''t show up. ?Chang Haonan actually saw Jing Yanlong. Considering that he is in charge of publicity, it makes perfect sense to appear here. Director, are you here to collect materials? Before the ceremony started, Chang Haonan came to Jing Yanlong and said hello to him. "yes." Jing Yanlong closed the notebook in his hand and put the pen back into his pocket: First, it needs to be used for propaganda within the military. In addition, it is not easy for local media to come here for interviews. We can only provide propaganda materials. This pre-production model has just been delivered, do we need to report on it? Chang Haonan was a little surprised by this. China has always adopted a relatively conservative strategy in the promotion of weapons and equipment in the past. In fact, this approach has nothing to do with confidentiality, it can only be called low-key. Especially when it comes to public reporting. ? ? Two models of aircraft, including the J-10 and J-11, participated in the 50th anniversary military parade that year. They also used the term "domestic third-generation fighter jets." Although you know it and I know it, everyone knows it, but in theory there is still no "public" equipment name. As for the previous models being put into service, they were even more silent. But judging from Jing Yanlongs reaction, it seems that the superiors have decided to make more noise on the J-10. Hmmlets do some publicity on the side. Jing Yanlong replied: It will certainly not involve specific equipment units and models, but the news should include video footage of the delivery ceremony and the aircrafts transfer and takeoff. "Firstly, the delivery is to Yunnan Province, and the location is not so sensitive. There is no need to worry about irritating any country. Secondly, it is also used to promote the J-10E of the same model and sequence. After all, Thailand may soon make a final decision. The purchase decision was made ?Chang Haonan wanted to say that it might not irritate others, but he hesitated and finally did not speak. ?While the two were chatting, the delivery ceremony also kicked off with a burst of music. Chang Haonan has participated in similar scenes so many times that he has almost become desensitized. Of course, as the protagonists, both parties A and B, that is, representatives of the Rongfei Group and the 131st Air Group, were very excited. Especially the four pilots, their mouths were grinning to the sky, and their exposed white teeth could be seen clearly from dozens of meters away. ?However, unlike last time when he was in a hurry to catch two shows in one day, this time Chang Haonan had plenty of time. Hence, he did not return to Beijing immediately after the ceremony. Instead, he stayed and was prepared to watch these new machines bid farewell to Factory 132. ?At around 3 p.m. that day, four planes formed two twin formations and took off from the runway of Huangtianba Airport, trailing long blue-purple tail flames. Although the J-10A is much "fatter" compared to the original design, the adverse impact of this change on the aircraft''s performance will mainly be felt at supersonic speeds, at least in the transonic speed range. ? In terms of basic flight performance such as takeoff, landing, and climbing, thanks to the maximum thrust of the turbofan 10B of up to 14 tons, the effective thrust-to-weight ratio of the J-10A has increased instead of decreasing, making it more efficient than the J-10E. In August this year, I specially searched for video data and watched the flight performances of Typhoon and Rafale. It was not until the four planes were completely out of sight that Song Wencong, who was standing next to Chang Haonan, looked back with some reluctance, and said to Chang Haonan with a hint of emotion: To be honest, the maneuverability of the J-10Es we sent over at low altitudes and low speeds was still somewhat behind them. If it were a J-10A, the performance would definitely look better. Speak. ??Yang Wei also walked back from a position slightly closer to the runway at this time: Our J-10 made its first flight several years later than the European Shuangfeng, and ended up entering service earlier. Do you think...will they receive some stimulation? Europeans are not surprised. As the person in charge or the initiator of a number of cooperation projects with Europe, Chang Haonan can now say with great confidence that no one understands the European military industry better than me: But I dont think it will be a problem if I am stimulated. ?Song Wenchong and Yang Wei both looked at Chang Haonan with curious eyes at this time, obviously waiting for him to continue talking. The first is the Rafale. Although the Type C used by the Air Force has not yet entered service, two carrier-based Rafale M aircraft have been delivered to the French Navy for trial use. The progress is basically the same as that of the J-10. Lets talk about Typhoon. Although the progress is indeed a bit slow, and the first batch is not scheduled to be officially delivered until next year, but it is a multi-national cooperation project, so every country will feel that the problem lies with the other three companies, and it is impossible to be stimulated..." Several people around heard this and laughed almost at the same time. After a brief pause, Chang Haonan continued: Actually, if we really want to say it is stimulated...there is indeed a country that will be stimulated, but its just not in Europe Not in Europe? ?Song Wencong frowned, thought for a moment and then raised his head again: "USA?" Isnt that so? ?Chang Haonan quickly waved his hand: Its just a third-generation aircraft, and its certainly not that big of a deal for the Americans... Besides, theyre staring closely at the Aiwuhan right now, and Im afraid they dont have that much energy to pay attention to us. Thats ?Song Wencong was a little confused. I think what Mr. Chang may be talking about is Yang Wei next to him heard some clues: "India?" (End of this chapter) Chapter 963 Is Guanghui also going to develop an improved model? Chapter 963: Guanghui also needs to be improved? Its not that bad For older generation technicians like Song Wencong, this answer does seem a bit counterintuitive. ?Although the Indian Air Force once caused considerable trouble to our country and is still trying to continue to cause us trouble so far, its main weapons and equipment are basically imported from various countries. ??Nowadays, China''s aviation industry has basically sat on the same table as the Europeans. Your Stan Airlines can even have problems assembling large parts of the Su-30MKI. Can he compare? You cant compare, right? ?However, slightly younger people, such as Yang Wei, quickly understood what Chang Haonan meant: What Mr. Chang said does make sense. "I remember...the Tejas fighter they developed is the LCA. It seems that it just made its first flight at the beginning of this year, right?" Thats right, January 14th. Someone next to me quickly replied: And the TD1 that first flew is strictly a technology demonstrator, not a prototype. I remember that at that time, there were a lot of reports there, consciously or unconsciously comparing the LCA with our J-10 Hearing this, everyone burst into laughter. ? ? If we say before 1997, it would barely make sense to compare these two aircraft together. After all, although the aircraft are different in size, at least on paper they are all serious standard third-generation aircraft. No one can laugh at anyone until they really fly. Even the TD1 verification aircraft was assembled much earlier than the No. 1001 J-10. But its already 2001, and it would be a bit arrogant to do this. ?The TD1 demonstrator was completed and rolled off the production line in 1995, and it took a full 6 years of debugging before it made its first flight. The second TD2 was manufactured in 1998. It seems that it is already 2002 and has not yet undergone its first flight test... In fact, this exchange between a few people fell completely into the category of casual chat. After all, no one really regards their Indian counterparts as their equal opponents. Including Chang Haonans guess, it was actually just a casual comment There are many countries that are currently developing or trying to independently develop fighter jets. ?Including the F2 fighter jet, which was announced for service in 2000, it has not actually been fully tested and can only be regarded as a semi-finished product. ? And this ambitious Mitsubishi company also has a "F2 super modification" plan. Being beaten by the J-10 is a big stimulus to these countries. India does not appear to be that special among them. However. His casual guess. I guessed it right... In the news broadcast the next night, a two-minute long video appeared, reporting on an unprecedented scale the news that "a new generation of fighter jets designed and manufactured by our country" had been put into service in the army. ?Although the specific model is still not mentioned as usual, the video information provided in the news is too clear. ??Anyone who pays a little attention to the relevant news will know that it is the J-10. ??Moreover, compared with the version that was previously shown at the air show, it has obviously undergone major changes. ? It should be the rumored multi-purpose model In the circle of military and aviation enthusiasts, since they have not been exposed to specific model naming, many people refer to the two J-10s, which have similar basic designs but obvious differences, as "air superiority type" and "air superiority type" respectively. Multipurpose". ??And believed that he would join the Chinese Air Force and serve at the same time. ?Although the latter idea is very problematic, if you just look at these two names, you can really get the meaning. For a time, the whole of China, and even the networks around China, were filled with discussions about this news. It has long been spread that the J-10 has two versions, one fat and one thin. However, it is indeed somewhat unexpected that the new version can be delivered before the end of 2001. You must know that the standard of "commissioned troops" in China''s caliber is quite high. At least it means that the design finalization test has been completed. Like many countries, it is not a good idea to "serve" in advance before the finalization is completed. ?Of course, most people are just discussing it. On the one hand, Chinas progress in the field of aviation technology in recent years is obvious to all, and it has gradually raised everyones threshold of shock. Furthermore, the J-10 has been publicly unveiled twice before. ?Especially at the Paris Air Show, a large number of extremely high-definition photos were leaked. ?Although the ones that appeared were all "thin versions", compared with the original timeline, this generation of J-10 has less of a "come out of the blue" meaning. On the other hand, although there is no report in the news which unit is the first lucky person to be equipped with the J-10. But soon some netizens in Yunnan Province claimed that they saw a similar-looking plane landing on December 15, and there were more than one person. ?From this it is not difficult to identify the 44th Division. It cannot be accurate to a certain group at most. The aviation troops stationed in Yunnan Province are indeed what Chang Haonan thought before. Not particularly sensitive. Or, at least not particularly sensitive on the Internet. After all, several countries adjacent to Dian Province have not yet fully recovered from the financial crisis in 1998. Network construction and so on... It might be a bit excessive to say it doesnt exist, but its basically the same. ?However, in a relatively harmonious atmosphere, one country is an exception. That is the India that Chang Haonan accidentally mentioned before. Logically speaking, they should have no direct relationship with Yunnan. There is not even a border line. But if you take a look at the map, you will find that the terrain in Dian Province is indeed a bit too good. Of course, good here refers to relative to the plateau environment. Therefore, the Indian army has always been worried. ??That is, will China start from Yunnan Province, cross the northern part of Shan State, and penetrate directly into the rear of its fragile seven northeastern states? ?With this way of thinking, they are naturally very wary of the troops deployed in Yunnan Province, especially the aviation troops. The resulting comparison mentality in the aviation industry is almost natural. South Asian subcontinent. ? Bangalore. ? Dr. Kota Naraya is taking several senior military officers to visit the TD2 demonstrator aircraft that is about to make its first flight in the final assembly factory. Compared with the TD1, which had difficulty even starting the engine after rolling off the assembly line and took 4 years to conduct ground testing in 1999, the assembly quality of the TD2 in front of us has been significantly improved. At least there werent too many problems on the ground. The reason why it has not made its first flight until now is mostly out of caution. The TD3, which is undergoing final assembly not far behind the group of people, can even be regarded as a prototype with a relatively stable technical status. According to the plan, it will make its first flight within one year of being offline. ? And LCAs first full-state prototype, PV1, has also begun large-part production. ?Although this kind of performance is not worth mentioning in the world, it is definitely a real progress for India, which is trying to be self-reliant for the first time. Looking at the bustling factory in front of him, Dr. Naraya could not help but smile. However, the expressions of the officers standing next to him were not very good. ?Especially Air Force Chief of Staff Anil Tipnis, who wears the rank of general. In the command sequence of the Indian Army, he is the top leader of the Air Force. "PhD." Dipnis turned to look at Naraya: I think you should already know. Know what? A trace of confusion flashed across the latter''s face. He knows a lot of things, but he really doesnt know what riddle the other person is playing. Just the day before yesterday, the Chinese Air Force commissioned their first batch of J-10 fighter jets. Dipnis replied seriously: Moreover, it is somewhat different from the models that have been released in the past. So thats what youre talking about ?Naraya breathed a sigh of relief, apparently not realizing the seriousness of the situation: My analysis is that the version they equipped themselves has increased the range and bomb load at the expense of a certain degree of mobility, and the overall development direction is closer to a multi-purpose fighter. Of course, in beyond-visual-range air combat, a relatively large bomb load means that more rounds of air-to-air missiles can be fired, which is also an advantage in itself. ?Tipnis nodded impatiently: Doctor, of course I know what you are talking about. What I want to say is, if they are currently deploying this new type of aircraft in Yunnan Province, will they completely suppress our LCA that is about to enter service? ?According to the plan, LCA will enter service around 2006. By Indian standards, it is not a big problem to say it is "soon". Facing this somewhat unreasonable question, Naraya''s eyes were full of doubts. ??He is not a soldier, so he does not know the air force''s concerns about the Chinese raiding the seven northeastern states. ?However, after thinking for a while, he still replied: "Although the LCA is technically equivalent to the J-10, the Chinese J-10 was originally a medium-sized fighter close to the F16. Now it has been improved and its take-off weight is probably at the level of the Rafale or even the Typhoon... And ours The LCA''s empty weight is only five and a half tons, and its take-off weight is less than 9 tons after it is normally loaded with fuel and bombs..." "If it''s just an air combat, then I believe these two models should be equally matched, especially the agility of the LCA will far exceed that of the opponent, and it may have an advantage within visual range, but in terms of overall performance, our aircraft is limited by its size. , Im afraid it doesnt have enough multi-purpose potential It should be said that this evaluation is relatively objective. ? Naraya does not know the specific situation of Turbofan 10, and can only regard it as a model similar to F110 or AL31F. It is obviously not enough for such an engine to propel an aircraft with an empty weight of more than 9 tons, and possibly even 10 tons. As for beyond-visual-range air combat and multi-purpose capabilities, unless the technical level is very different, these are the inherent disadvantages of small aircraft. ?However, to Tipnis'' ears, these words were a bit off-putting. Dr. Naraya. ?The general walked up to the front of the TD2 verification aircraft, stretched out his hand and patted the leading edge of the wing: I think our Air Force also needs an improved LCA model with more advanced technology and stronger combat effectiveness. Hearing this, Naraya was naturally happy and quickly took two steps forward: We do have a plan to improve LCA, currently named LCAMK1A. "Basically, the current F404 engine is replaced by the F414 with greater thrust, and then the internal fuel capacity is increased and new airborne equipment is replaced, including phased array radar and active mid-range missiles. By the way, some ground attack capabilities can also be obtained. " Actually, Naraya himself is relatively rational. ?Although this improved version does exist, it can only be regarded as an idea at present. According to his plan, the upgrade should be started after LCAMK1 is equipped with troops. ??Talking to Tipnis now is just to show his face in front of the Air Force Chief of Staff and give him an impression. To put it bluntly, its like painting a cake. However, what the doctor never expected was. ?This painting has completely drawn me into a pit ?Tipnis actually got off the donkey directly along the slope: Doctor, can we directly start the upgrade plan you just mentioned based on the current verification machines? Until this moment, Naraya finally felt something bad: Its difficult. ?He hurriedly went back to make up for it: The prototype of MK1 has not yet been fully assembled. If we rush to improve it now, the foundation will be unstable and other related problems will easily occur. I suggest that we wait until the base model LCA is delivered before considering the next step of upgrading. ?The doctors words caused Tipnis to fall into silence: "Um" In fact, the Air Force is planning to reduce the purchase of basic LCAs from the original planned 76 to 24 or 18. Hearing this sentence, Naraya almost gasped: "how" You know, according to the plan, LCA will not join the Air Force until around 2006. By that time, the performance of the basic model should have lagged behind, and it is impossible for us to purchase a large number of a model whose combat effectiveness is not as good as that of our main opponents. Tipnis shrugged and replied: However, doctor, dont worry too much. The reduced quantities will not be canceled directly, but will be transferred to purchase the upgraded models you just mentioned. (End of this chapter) Chapter 964 Indian designer who doubts life Chapter 964: The Indian designer who doubts life ??If he could go back in time, he would definitely go back ten minutes ago and stop himself from making a fool of himself. What MK1A? What is the upgrade plan? Does not exist. As for this thing, do you want it or not? Mainly, Dr. Kota Naraya never expected it. How can people be so shameless - Transfer the canceled orders to the improved model. Sounds like theres nothing wrong with it. But thats only ok if this improved model already exists. At present, the basic MK1 has not even been built yet, so the order has been cut by three-quarters, which is like a bolt from the blue for the development of the project. It is true that Stan Airlines is a state-owned enterprise. If the Air Force now wants a more advanced MK1A upgrade, it will definitely need to allocate additional funds, and it will not require them to raise funds themselves. However, many problems in the equipment research and development process cannot be solved immediately with money. LCAs overall design borrowed from the Mirage 2000 to a considerable extent, and even a considerable part of the work was done by the French. Therefore, in this nominally "self-research" project, the problem faced by the technicians is not only to accumulate experience, but also to make repairs while repairing the French in the Grand Triangle. Some details on the wing design need to be thoroughly understood. Only after all these processes have been completed through the development and production of the MK1, will it be possible to improve the new machine. Otherwise, if something goes wrong in the middle of the process, it will be difficult to even investigate the cause, let alone solve the problem. ?This is just a technical issue. Whats even more troublesome is that LCA is a project that dragged on for nearly 20 years before completing its first flight. Although the intensity of self-research is not enough, it is still the hard work of tens of thousands of people in the Indian aviation industry. ? And judging from the test results of the demonstrator, even the MK1 model can achieve the original design goal of "mainly focusing on air control tasks and replacing the MiG-21 and MiG-23MF". But at this time when success was only a step away, the orders promised by the Ministry of National Defense not only did not expand, but also shrunk. This has an extremely serious impact on the morale of the R&D team. ? It''s like you tried your best to finally complete the KPI of your superior, but not only did you not see the bonus, but you were scolded by your stupid boss, and a higher KPI was set next month. No one can survive it. ?Thinking of this, Naraya calmed down and decided to try to persuade the other party. General Tipnis, I wonder what combat objectives the Air Force hopes the new model of MK1A can achieve? ?At this time, there must be no conflict with Party As eldest father. Hence, the doctor chose a relatively roundabout strategy. Our new aircraft cannot be used only as a defensive model, but should have sufficient offensive capabilities, such as launching active mid-range bombs and the ability to use precision-guided weapons... ? Tipnis danced in front of the TD2 verification machine and said: Of course, there is also a longer range and a larger bomb load, which can support the aircraft to fight in the air for a longer time, instead of landing half an hour after taking off..." ?At this time, Naraya understood a little bit ??Isnt this just the J-10A that wants to compete with its northern neighbor... ?While he was secretly cursing the other party''s completely unreasonable comparison, he began to organize words quickly in his mind. But Your Excellency General, the initial development goal of LCA is just to replace old aircraft like the MiG-21. ?Naraya argued hard: As far as I know, the main mission of these fighter jets in the past was only to fight for air supremacy, or to cover attack aircraft for low-altitude and short-range raids, which are the parts that LCA is good at. If we are talking about carrying rockets and ordinary bombs for emergency response, then the LCA in the MK1 technical state can also do it, and because of the bomb delivery computer, the accuracy is higher than the old model. Moreover, even if multi-purpose capabilities and sufficient range are required, we are already equipped with Mirage 2000C and Su-30MKI, leaving little room for LCA to carry out such ground strike missions..." Hearing Naraya''s answer, Tipnis''s face changed slightly. Doctor, what I just said are the opinions of His Excellency Vajpayee. If LCA cannot meet these requirements through upgrading, then we can only consider spending funds on purchasing foreign aircraft in the future, such as the newer model MiG-29, or the JAS39 using the same power system as LCA ?Naraya''s heart couldn''t help but sink. This is also a problem that has been bothering him. ?Due to the extensive use of foreign parts and the inefficiency of the entire aviation industry, LCA, as a domestically produced aircraft, has no cost advantage. ??If you just calculate the economic calculation, the MiG 29UPG is actually a more cost-effective choice. Looking at Naraya who lowered his head and remained silent, Tipnis continued: Moreover, since China can modify the design of the J-10 and turn it into a multi-purpose fighter, cant we do the same? The original intention of his words was probably to use a provocative method. ?However, it was better not to say it. Once he said it, it made Naraya even more angry - Do you want to see how big the difference is between the actual situations in our two countries? ?Before LCA, Stan Aerospaces only experience in the field of design and development was the unsuccessful HF-24 "Aeolian". ?Not only is the equipment quantity small, but the aircraft design also fluctuates back and forth amidst constantly changing requirements. Just like LCA now. Before the Chinese developed the J-10, they had successfully made in-depth improvements to the MiG-19 and MiG-21, so much so that even the MiG Design Bureau would not recognize them when they came. They also independently developed a larger aircraft. second-generation interceptor aircraft. Taken together, the total production volume of these models has reached four figures. Other than the fact that they both bear the title of a Third World Power, the two sides have nothing in common. ?Of course, these things are just something to talk about in your heart, saying that it is impossible to say them out. Of course it can be done. ?Naraya drew the cake himself, so he had no choice but to nod his head: Just modifying the plan will inevitably take several more years, and upgrading the aircraft is not only the work of our design team, but the engineers and workers on the production line also need a certain amount of work to maintain proficiency "so." Before the doctor could finish speaking, Tipnis answered first: Dont we still have orders for 18-24 aircraft? But the quantity is too small and the production line cannot last for a few years But the early version of the Chinese J-10 first flew in 1997, and it has only been 4 years since the upgraded model has already been put into service. ? Tipnis has no longer concealed his true thoughts of hoping to compete with China: If we maintain low-speed production, about 20 aircraft should be enough for 5-6 years of production, right? ?) ??Naraya felt that her blood pressure was about to explode. He could even clearly feel that the blood vessels on his forehead were beating loudly. It must be admitted that there is definitely a reason why this kind of rhetoric of "other people''s children are like that" can be passed down from generation to generation. If nothing else, its definitely useful for gagging. At this time, Naraya was in such a state of unspeakable suffering... In the end, Dr. Naraya failed to convince Tipnis to change his mind. ?Of course, perhaps, as the latter said, this is actually the opinion of Prime Minister Vajpayee. If this is the case, then the Chief of Staff of the Air Force is indeed helpless. Boss, what should we do next? ?Standing at the gate of the factory, Naraya''s assistant, Sara Gupte asked him. There was a bit of confusion in his eyes. We will keep the original plan unchanged and continue to prepare for the first flight of TD2 and the final assembly of TD3. ?Naraya forced herself to calm down: If we stop testing the MK1 now and start the upgrade project directly, we will face very big difficulties. Gupte sighed helplessly, and then nodded. For a moment, the two looked at each other without saying anything. After a moment of silence, Gupt spoke again: But speaking of it, why is it that the Chinese side... ?His question just started when he was interrupted by Naraya with a wave of his hand: We dont need to worry about the situation in China. It is of no benefit to ourselves to keep an eye on others... ?Having said that. But in fact, Naraya has really been wondering in recent years what kind of miracle medicine the Chinese people have taken, and they have taken out all kinds of strange and advanced technologies from their pockets like magic tricks. In the past, although there was a gap between the two parties, they could still sit at the same table and eat. ??But in just five or six years, others are already on an equal footing with those established aviation powers. ?Especially before, he tried to use Snecma''s M88 engine as a bargaining chip to put pressure on General Electric and wanted to lower the purchase price of the F404. ??As a result, the response given by the former shocked Naraya. Stated that due to relevant regulations on cooperative research and development, it is unable to sell M88 engines or related technologies to Stan Aeronautics. Originally, many people still had a half-believing and half-disbelieving attitude towards the statement that "France and China jointly developed the M88". Especially as to the extent of Chinas participation, it is generally believed that it is not too deep. ?However, this is obviously not the case... ?Naraya shook his head, forcing himself not to continue thinking, but to focus on the trouble in front of him. The only solution he can think of now is to let his local technical staff continue to be responsible for improving and thoroughly understanding the design of LCAMK1, and at the same time go to Dassault to let the French develop the model on the existing basis. A major modification to meet the Air Force''s new requirements for this model. Although the participation of foreign designers is bound to mean higher costs, at least the risks are technically smaller. LCA has already reached the edge of the cliff. If there is an accident such as a machine crash and fatalities at this juncture, it will most likely be completely destroyed. ?Furthermore, after all, it was Party A who took the initiative to modify the product requirements, so the funds will naturally have to be passed on to them... (End of this chapter) Chapter 965 Id better seek the opinions of the Chinese people on this matter. Chapter 965: Lets seek the opinions of the Chinese people on this matter All said and done, although the "cooperative relationship" between Stan Aerospace and Dassault has been around for a long time, the last interaction between the two parties was already a waste of money and goods, and now they want to find another partner to join the MK1A upgrade. Then you will definitely have to go through the process again. As we all know, in India, the efficiency of the process is still a little low. Even though everyone knows that hiring foreign aid is the only feasible way in front of them, let alone the final decision, just deciding to send a letter of inquiry to Dassault to confirm the intention to cooperate took almost half a month of wrangling. time. ??When this inquiry letter was actually sent out, 2001 had already passed. ? And this time coincides with Christmas, and the French are naturally enjoying the 14-day Christmas-New Year''s Day holiday. It is impossible to go to work. Therefore, it was not until the end of the first week of 2002, on January 7, that the Professional Client Division of Dassault Group finally reported this inquiry letter to the headquarters. In fact, generally speaking, this kind of thing is a written process, which is roughly equivalent to "call and ask before visiting an old friend''s house." It is almost impossible to get a no reply. ?Especially like LCA, it is said to be joint research and development, but in fact it is entirely Indians who pay for it and Dassault comes up with the solution. The execution is no different from a normal supplier contract. ??And due to Indias special national conditions, they are often a very weak party. Therefore, while waiting for confirmation from the group''s senior management, Cornell Bass, the head of the professional customer division, had already ordered his subordinates to dig out the technical data of the LCAMK1 type from the pile of old papers and regroup those who had participated in the past. The manpower for this project is You should know that they just completed the design work on the upgraded model of Mirage 2000-9 before the Christmas holidays. It is also a tailless delta wing, a single-engine light aircraft, an air superiority model that has been greatly modified to be multi-purpose, and it also involves structural changes... ??It is difficult for Stan Aviation to draw inferences from three cases, but it is not difficult for Dassault to draw inferences from one case. ??Its time to apply the same experience to LCA while your hands are still hot, and then cheat...and make a big sum of money back. ?However, no matter how hard they try, there is still no reply from the headquarters. You know, Bass has already decided on the team leadership positions that are going to be sent to India. This is equivalent to promising a benefit. Now that even the most basic confirmation of intention is being delayed, he feels a lot of pressure. ?Hence, a few days later, Bass, who was impatient to wait, began to wonder whether the last email failed to be delivered due to some technical reason. So, the second inquiry letter was forwarded repeatedly. ?However, it still remains unanswered. ?After receiving no response for two consecutive times, he finally realized that something was wrong with the direction of the wind as his mind was still immersed in the vacation and had not fully recovered. In this case, it is impossible that the above did not receive it. Rather its more like preparing for cold treatment Actually, what Cornell Bass thinks is a bit complicated. The headquarters has no idea of ????cold treatment. Its just that we havent made a decision yet. In fact, the secretarys office reported the news to Ed Steiner as usual on the day it received the first email. Under normal circumstances, for this level of business, it is enough as long as he gives an approval opinion. ?But this time, Ed Steiner specifically found Serge Dassault and briefly introduced the situation to the latter. LCA ?Dassault frowned slightly and flipped through a document in front of him. ??The last time the two companies cooperated, his main focus was almost entirely on the municipal elections in Corbeil-Essonne, and he did not particularly understand the ins and outs of it. Therefore, when he saw that the first demonstrator of this model rolled off the assembly line in 1995, but did not make its first flight until 2001, the nearly 80-year-old man shook his hands and almost dropped the document on the table. We were really involved in the design of this aircraft? ?Dassault confirmed a little nervously. Thats not entirely true ? Ed Steiner considered the words: We have provided certain technical support in the aerodynamic and structural design of the tailless delta wing. The three-stage leading edge slat is actually a modification of the plan designed for the Chinese people about ten years ago..." As for the aircraft itself, uh... overall... probably... it should be considered that it was designed by the Indians themselves..." Hearing this explanation, Dassault was slightly relieved. Since their second prototype has not yet flown for the first time, why are they so anxious to come to us for upgrades? He closed the document, put it aside, and took a sip of coffee to calm down: "I didn''t even understand the basic model..." Dassault originally wanted to criticize a few more sentences, but then he remembered that his Rafale seemed to have skipped the F1 stage and was preparing to mass-produce F2 directly, so he suppressed the second half of the sentence. . Our Rafale F1, although few are built, the technology is still very mature... He recited it several times in his mind and warned himself never to make analogies with Indians. The official statement given in the application letter is that the old model cannot meet the current tactical needs. ?Ed Steiner shrugged playfully: But I estimate that the actual reason is I was stimulated by the improved J-10 that the Chinese suddenly put into service a month ago. You know, many people...especially the media are very willing to compare the two countries together. They are both third world countries, both have a population of about one billion, they are both Asian countries, and they are neighbors..." "Forget it...they are not countries on the same level." ? Dassault almost choked on the coffee in his mouth: We and the Chinese people...that is technical cooperation in the true sense... After a short pause, he even emphasized it again: Peer-to-peer cooperation. ??At present, one of the two core models of Dassault Group is being jointly developed with others, and the key technology of the engine of the other is in the hands of others. To say the least, it''s quite embarrassing. The only way to save face is to tout the technical strength of Chinas partners. It can be said that Dassault now hopes that China can catch up with the Premier League and the United States more quickly than Chang Haonan. So, thats what Im worried about too. ? Ed Steiner took advantage of the situation to express his intention The Indian is a fat sheep. This has been verified by the Russians. ?According to information gathered from multiple parties, the unit price of the Su-30MKI sold by Sukhoi to the Indian Army is much more expensive than the Su-27SM/UBM sold to Algeria, even if it cannot use the new generation enhanced version of the airframe. The price difference here is nominally the "technical guidance fee". Because Indians require that part of the final assembly work be completed in their own country. ?However, judging from Stan Air''s past performance, there is still a question mark as to whether it can guide one, two, and three. So based on this inference, the LCA upgrade project must be relatively profitable. But Dassault is currently tied a bit deeply to China, and we still have to think clearly about which is more important. Dassault on the opposite side can naturally understand the implication: Are you worried that if the Chinese and Indians dont deal with each other, if we provide technical support to the latter on LCA, it may affect the cooperative relationship between us and China? Ed Steiner nodded, then shook his head: Its not just that I am also worried that if we are really deeply involved in this upgrade project, our own brand will be damaged..." The second half of this sentence is obviously mostly a joke. ?However, it is very important. ?Whether its a person or a company, they always have face. ??If the projects obtained are rejected simply because of "Chinese objections", wouldn''t it appear that the Dassault Group is undervalued? ??And explaining it internally also hurts morale. So, at this time, you need a decent reason to deceive yourself... Sure enough, after hearing Ed Steiners second concern, Dassaults originally frowning eyebrows relaxed a lot. So be it. He put the coffee cup back on the table: Dont go through official channels, let people confirm Chinas attitude on this matter privately. As partners, you still have to respect them. "in addition" When Ed Steiner was about to get up and leave, Dassault suddenly stopped him: After you go back, do an evaluation of the expectations of this project to see if it is likely to damage our companys reputation. If the risk is really too great...then we should consider it carefully. (End of this chapter) Chapter 966 Let Americans not sleep well Chapter 966: Let Americans sleep poorly No matter what the Indians think, the Chinese side actually doesnt care much about their rhythm. Especially in the aviation industry. It is really realized on a practical level that it is better to build than to buy, and to buy is worse than to rent ??If the Indian army really uses the money invested in the LCA project to buy ready-made aircraft, the threat it can pose may be even greater. In short, after the first batch of pre-production J-10A entered service, Chang Haonan quickly forgot what he said at the time. During this period, his main job was to improve the image processing system of the Haiyang-1 satellite. ?Not only the satellite side, but also the part that needs to be processed on the ground after the data is returned. And has it been fruitful? ??Already have some ideas. January 14th. The first snow in 2002 seemed to come no later than in previous years. ??Despite the mobilization of a large number of municipal workers and people, the heavy snowfall that lasted all night caused a lot of trouble to road traffic early in the morning due to insufficient equipment. So when Chang Haonan got out of the car, he almost missed his step. But there is no other way. He has determined the date of this results report meeting himself, and he really cannot rely on others. In fact, the heavy snow even triggered temporary power outages in many areas. The original venue for the meeting suffered as a result. Fortunately, the Fifth Institute of Aerospace Science and Technology is a key target of ensuring power supply, so it can continue to operate in another place The results report meeting is not a technical seminar, and most of the participants are leaders related to the Haiyang-1 satellite project. ?As a result, the location of the Torch Laboratory seems a bit remote. And the Fifth Aerospace Academy is just right. Whats a bit bizarre is that the former has been working on this project for several months, but this is his first time here. ??Coupled with the heavy snowfall that covered everything with snow, he was a little confused about his direction for a while. Fortunately at this time, a familiar voice sounded from not far away: Mr. Chang, welcome. Chang Haonan turned around and saw Lin Senming striding over to greet him: Mr. Lin? He stepped forward and shook hands with the other party: What a coincidence, you just arrived too? "Hey... I saw you driving in and found that the comrade responsible for guiding the guests hadn''t arrived yet, so I came down from the office specifically." ?Lin Senming replied: It snowed last night. I was worried that I wouldnt be able to catch up today, so I didnt go home and spent the whole night in the office..." Obviously, this person is also a master who works so hard that he forgets to eat and sleep. ?Ever since, within two sentences, the topic between the two people returned to todays report meeting: Mr. Chang, I summarized the part I was responsible for last night, and I feel...its hard to come up with a sufficiently intuitive display. Although there are a lot of data and charts, those things need to be understood by an expert. Today He did not continue at this point, but the meaning was already very obvious. Most of the people who came today are leaders. Although there are also people with technical backgrounds, after all, there are so many lines of work, not to mention that image recognition is still an extremely abstract and novel field. ?However, Chang Haonan looked relaxed and even patted Lin Senming on the shoulder: "It doesn''t matter. I''m prepared. Just organize the report meeting as planned." The latter are still a little doubtful. ?But after all, Chang Haonan, who made the final decision, said so, and there was someone tall enough to support him even if the sky fell, so he nodded in the end. Perhaps due to the weather, the leaders who came to attend the meeting generally arrived a little late. Fortunately, it did not affect the normal start of the report meeting. For Chang Haonan, reporting in such a relatively closed environment is already a familiar task. ?However, Lin Senming was still a little nervous. After a brief introduction, the general background of the satellite is introduced first, as well as an overview of software programming. Logically speaking, these two parts are relatively plain content. But as he listened, Chang Haonan felt something was wrong. Its too scripted. Especially the software design part. ?Even leaders with professional backgrounds, most do not know much about the computer field. However, Lin Senming started with an energy functional of the C-V model and the LBF model, followed by a curve evolution theory and variational level set method model, and finally ended with an active contour model improved by local binary fitting... ??If it is a technical meeting within the project team, this does not matter, but the report meeting... still needs to be concise and easy to understand. ??Taking advantage of the gap between the two paragraphs, Chang Haonan looked around and found that many people on both sides of the conference table were either frowning or drowsy. ?Although Haiyang One is a nominal project of the ministry, even if it fails today, it is unlikely to have any serious consequences. However, the degree of tilt in funding will inevitably cause problems. ??More importantly, Chang Haonan also pointed out that he would use the funds from this project to continue to develop multi-phase image segmentation and tracking technology. So, after finally getting through the first two parts, Chang Haonan chose to start from the middle part of the PPT as soon as he took the stage. Dear leaders and colleagues, Comrade Lin Senming has just introduced to you the theoretical basis for our target contour segmentation. Next, let me show you our research results over the past month. Actually, I cant entirely blame Lin Senming for being boring. If you want to show the effect of satellite image processing, first of all, you must have enough satellite images in your hand. However, Haiyang-1 is Chinas first ocean remote sensing satellite Hence, when testing before, the project team used relatively abstract calculation methods to conduct testing.?????But it is obviously less intuitive. ?However, Chang Haonan thought of a remedy in time before the report meeting. Everyone, please look at these pictures. He directly controlled the PPT to turn to the next page. There are no formulas or numbers, just four pictures. Slightly monotonous picture. Gray background with a dark image composed of a regular pentagon and an ellipse. The color of the picture is painted on for visual effects. During the actual processing, the background pixels will be simplified to a certain extent to reduce the pressure of information transmission ? ?Attendees who have just been fed too much mathematical symbols need this kind of intuitive and simple image to relieve themselves at this time. ?Chang Haonan can clearly feel that many people have regained their spirits. Next I will show the relationship between the evolution curve C and the target contour C* under the piecewise constant value. While speaking, Chang Haonan clicked the mouse, and a white round frame appeared on the first picture: "In picture (a), when the evolution curve C surrounds the real target contour C*, the energy functional inside the curve C is greater than zero, while the external energy is close to zero; and in (b), when the real target contour C* surrounds When curve C is reached, the energy functional inside curve C is close to zero, and the external energy is greater than zero..." That is to say, for any part of the evolution curve, we only need to calculate its internal and external energy functional values ??separately to determine its positional relationship with the real target contour. When the calculation results of its internal and external energy are close to 0, it can be judged whether it coincides with the target contour..." ?Suddenly, the originally lifeless conference room suddenly became lively Except for some busy international waterways, there are actually not that many ships in most areas of the ocean. In other words, most of the photos taken by ocean surveillance satellites only have a sea background. Therefore, even if you just separate the target area and the background area, and exclude data that only has background but no target, you can greatly reduce the communication pressure on the space-to-ground link and shorten the response time of the entire space-based reconnaissance system. ?This does not include the efficiency of secondary identification after the ground receives the data. Find an aircraft carrier from 10,000 photos, and find an aircraft carrier from 100 photos. The difficulty is obviously not on the same level. Comrade Haonan. The speaker was Wang Shuguang, the head of the State Oceanic Administration. He certainly has no direct relationship with the navy. ?However, in principle, Haiyang-1 is a satellite belonging to the State Oceanic Administration. He was naturally invited to attend today''s meeting. I noticed that the four pictures you used all have uniform grayscale backgrounds, but the actual ocean background may not be so ideal. Even in the deep sea, there is a high probability of grayscale heterogeneity. Can your algorithm distinguish the grayscale differences between the backgrounds in different areas, as well as between the target to be observed and the overall background? This question is indeed a professional one. Its not easy even for people in the navy to imagine. "sure." ?Chang Haonan showed a smile: Actually, as long as the fitting function corresponding to the evolution curve is used to replace the gray mean value in the model in the local energy term. "In most cases, the picture captured in a photo does not involve too many complicated grayscale heterogeneous conditions. Combined with the weak performance of the spaceborne computer, we can basically handle it by selecting two fitting functions. Most of the time." As he spoke, Chang Haonan continued to turn the pages. ?This time, an overhead picture of a port appeared on the PPT. ??More importantly, although the clarity is very poor, it can still be seen that there is a full-deck ship parked at the lower left of the picture. "This is" ?Wang Shuguang frowned and realized that things seemed not simple. The environment feels a little familiar... Wait a minute, isnt this Jinmen Nanjiang Wharf? Soon someone recognized the location: So this ship is the Kiev? Thats right. Chang Haonan replied: This is a photo taken by a 244-channel CCD optical reconnaissance camera. I applied to the Air Force and got it just a few days ago. Besides the Kiev, there are several other large ships whose outlines can barely be seen clearly. After our processing. He clicked the mouse again. In an instant, except for the ground, dock buildings and a few ships, all parts involving the water surface turned into a light gray background with uniform grayscale. Even in shallow sea areas with complex hydrological conditions, the identification of large water surface targets can still be completed! After finishing speaking, Chang Haonan turned around again. In the conference room, silence fell again. But anyone could see that this time, it wasn''t due to listlessness. But he was shocked to the point of being speechless for a moment. Until a crisp sound broke the silence. ?It was a naval leader who was holding a tea cup. He accidentally knocked the bottom of the cup on the edge of the table. Obviously, this technology doesnt even have to be put into practical use. ?As long as a little leakage is leaked, it will be enough for Americans to have trouble sleeping... (End of this chapter) Chapter 967 Ocean One project, upgrade! Chapter 967 Ocean One project, upgrade! ?This photo of Chang Haonan directly derailed the entire meeting and even the direction of the entire Ocean One project. ??? Before he could finish the rest of his speech, Space Administration Director Luan Wenjie immediately stopped the report meeting. Originally, Ocean One was just a practical project involving the military and civilians and aimed at verifying basic technologies. No one even expected it to perform any specific functions. The real highlight lies in the launch of the second batch of ocean series satellites after these verification technologies have been implemented respectively. Therefore, although the topic of Haiyang-1 has been discussed many times at the level of the Science and Technology Commission, the two national bureaus at the deputy ministerial level, the State Oceanic Administration and the China National Space Administration, have been the real long-term leaders of the project. But it is enough to see from this point that this project is of focus but the specific level is not high. The key is its potential. ?However, no one expected that the potential that was originally planned to be redeemed in the next ten years was suddenly advanced today. In other words, based on the algorithm designed by Chang Haonan, if China currently has enough human, material and financial resources to directly build a network of more than 20 ocean remote sensing satellites, it will be able to immediately lock US aircraft carriers on a global scale. Location target too. But heres the problem. Its a bit early. Whether in terms of intentions or capabilities, China has no immediate plans to break up with the Americans. ??With no suitable strike means at hand, what if we can locate the location of the US aircraft carrier? Furthermore, after a huge black swan incident, the other partys attention was finally drawn to the Middle East. In the next period of time, the main focus will be on stealing development. There is no need to impose too much unnecessary stimulation on Americans. Hence, the content of todays meeting, and the entire situation of Ocean One, must be kept confidential Refers to a higher degree of confidentiality. In fact, Americans have always been wary of Chinas attempts to establish a space-based ocean remote sensing system. ?The difficulties that Ocean One encountered in terms of hardware before were caused by the obstacles posed by the other party. Otherwise, it should have been launched more than half a year earlier. But there is still a difference between vigilance and vigilance. Let''s make an analogy. In the past, when I found out that China wanted to acquire the Haiyang-1 satellite, I felt that it was just like "someone was hiding weapons and armor." Belongs to big or small things. Especially China is not a soft persimmon, and it is impossible to break up over this kind of thing. However, if the other side discovers this set of image segmentation and positioning technology, it will be equivalent to hearing that someone ate a note from the belly of a fish, or that someone dug out a stone man with one eye from the river. I also heard that someone wrote a poem: "Suddenly a madman sharpens his knife at night, and the emperor''s star flutters in the sky"... In short, the nature is definitely completely different. Of course, since Chang Haonan chose to speak out today, he also recognized that the occasion was not large and the participants were of high level. Most of them are internal personnel of the spaceport. There are only two other navy leaders. As for the State Oceanic Administration, the only person in charge is Wang Shuguang himself. So, the main change lies in the changes in follow-up work. Director Shuguang. After Luan Wenjie hesitated for a moment, he looked at Wang Shuguang, who was presiding over the meeting with him: In this current situation... I think, should we tighten the scope of specific information about Ocean One... including subsequent models of the entire Ocean series of satellites? ??On paper, the ownership of Haiyang One belongs to the State Oceanic Administration, so any policy changes must be decided by the two of them together. ?Wang Shuguang was not originally from a military unit, so he was completely involved this time. ?Now that I was suddenly asked such a serious question, there was no way I could have any negative opinions. Naturally, I nodded at the speed of light: I agree with Director Wenjies opinion. In addition to being the head of the National Space Administration, Luan Wenjie is also one of the deputy directors of the Science and Technology Commission. Although the two positions have the same level, it is obviously better to say the latter. Ocean One involves the specific situation of ocean remote sensing, and I am the only one in the Ocean Bureau who fully understands it. After a slight pause, Wang Shuguang continued: "In addition, I think that based on the current situation, the military value of Haiyang-1 has far exceeded the value of marine scientific research. Is it possible to consider transferring the ownership of the satellite to the Navy...or the Remote Sensing Center? As long as our Oceanic Administration can Just share some of the non-sensitive data..." As a department leader, this is the first time in his career that he has actively pushed the resources in his hands outwards. ?Because the Haiyang-1 satellite has changed from a sweet potato to a hot potato for Wang Shuguang and even the entire Ocean Administration Its so scary. How is it that one minute you were identifying a few small squares that were harmless to humans and animals, and the next minute you were targeting an aircraft carrier? Isn''t this what we promised before? Isnt it okay if I dont serve you anymore? The result... ???It really doesn''t work. Luan Wenjie shook his head decisively: Director Shuguang, do you think that at this juncture before the launch of the satellite, a major event like a sudden change of ownership suddenly occurs? Wouldnt it mean that we dont have three hundred taels of silver to tell others that there is a big problem with this satellite? Moreover, not only this one, but also the subsequent ocean series satellites were launched in the name of the Ocean Administration. After all, at least on the surface, our country is opposed to the militarization of space resources..." The more he spoke, the paler Wang Shuguang''s face turned. The latter also knew that today he was on a pirate ship. If you think about it further, Im afraid it might be a bit difficult. Have no choice but to sigh and nod somewhat dejectedly. But...dont be too nervous. Looking at Wang Shuguang, who was a little unsure, Luan Wenjie half comforted and half jokingly said: The specific operation of the satellite must be the responsibility of the remote sensing center. You only need to sign when necessary and do not disclose the relevant information to others..." Of course, of course. ?Wang Shuguang wiped the non-existent sweat on his forehead: Cooperate with the work of brother departments, you should... Comrade Haonan. After barely calming Wang Shuguangs mood, Luan Wenjie finally turned to Chang Haonan who had just returned to his seat from the podium: After I return, I will write a specific report to my superiors. By then, the level of direct responsibility for the Ocean One project is likely to be further improved. According to the original plan, your Torch Group should only be responsible for cooperating with the Fifth Academy to complete the design of the onboard software program, subsequent software injection, and ground program design and maintenance work. Other departments will be responsible for completing it. But now the situation has changed. The space agency hopes to carry out long-term cooperation with Torch Group in the ocean series satellite project. What do you think, Comrade Haonan? Although I am asking for Chang Haonan''s opinion, in fact, the answer is well known to both of them. ?Chang Haonan originally wanted to obtain more research resources through Ocean One. ?Even if these resources are not directly given to him, they will have many benefits for future plans. For example, the simplest one Since the ocean surveillance system has been established, wouldnt it be logical to develop a weapon and equipment that can accurately strike enemy large water targets thousands of kilometers away? This does not include the role that contour segmentation and image recognition technology may play in other fields. ?Hence, there is absolutely no reason to refuse. "no problem." Chang Haonan replied almost without thinking: The algorithm and software parts can be left to our group and the comrades from the Fifth Aerospace Academy. "but." ?Before Luan Wenjie responded, Chang Haonan changed the topic again: I have a small request, I hope Director Luan can agree to it. The former had an "I knew you still had a hand" look on his face and motioned for him to continue. Chang Haonan was not polite and immediately said: I have just mentioned that the current contour segmentation algorithm is still in its infancy and can only simply identify the background area and at most one target area. When it comes to multiple targets and targets with less distinctive features, the effect will be compromised. So, we have previously established a pre-research group for segmentation and recognition of multi-phase, that is, multi-target images, and have achieved some theoretical results so far. Do you think...can we take advantage of this opportunity to upgrade the project level of Ocean One and turn our pre-research project into a positive one? Hearing this request, Luan Wenjie did not answer immediately, but stared at Chang Haonan for a while. Comrade Haonan, I have to tell you in advance. ??He had already heard about Chang Haonan''s "many tricks" from Ding Gaoheng, and he did not dare to take it lightly: "Even if the level of responsibility for Ocean One is raised, the funding is unlikely to increase sharply in a short period of time, so you can''t arrange for a gold-eating beast to come in for me... Then you won''t be able to support me even if you sell my old bones. rise" Director Luan, you know me. ?Chang Haonan made a candid appearance: In terms of fund utilization, if I say its second, no one would dare to say its first. As for this new project teamactually you dont need to allocate too much money. You just need to give priority to providing supercomputing resources and tilting the satellite payload slightly (End of this chapter) Chapter 968 Let them waste some resources Chapter 968 Let them waste some resources. ? Judging from Luan Wenjies understanding of Chang Haonan, the slightly tilted mentioned by the latter may not be that slight. However, these can always be discussed. What''s more, in addition to the practical series of satellites specially used for scientific exploration and technological experiments, China also has the Shenzhou spacecraft orbital module that can be used as a small satellite. In terms of mission load, it is already much more generous than in previous years. ?So, the matter was finalized in this way. ?Of course, raising the project level in the middle of the project still requires a process. Fortunately, the hardware development phase of the Haiyang-1 satellite has ended, so it is not expected to affect the final launch window. ?This report meeting was expected to last only about two hours, but ended up taking most of a day. ??It was already sunset when Chang Haonan and Lin Senming sent away several leaders attending the meeting. In January in Beijing, it gets dark early. Mr. Chang. ?Standing in the parking lot, Lin Senming held Chang Haonan''s hand tightly with excitement on his face. ?His lips moved slightly, obviously wanting to express his mood at this moment. But in the end, I was still limited by my slightly lacking language skills. ?Thousands of words turned into one sentence: "Thank you so much" Everything is unspeakable and belongs to - ?Although Lin Senming is only the deputy chief designer of Ocean One, he also cooperates with Chang Haonan in software design. But the latter is not from the aerospace system after all. ?At the level of the Fifth Academy, and even at the level of aerospace science and technology, Lin Senming is the most important young backbone in the Haiyang-1 satellite project. Hence, the development prospects of Ocean One, or the Ocean series satellites, will directly affect his own future and destiny. While there seems to be only half a level difference between projects led by national bureaus and projects led by ministries and commissions, the resources and priorities they receive are completely different. As for the next level ?Then it would be necessary to set up a separate department to take charge, just like manned spaceflight. ?Lin Senming couldnt even think about it. ?However, for Chang Haonan, these are already commonplace. It is better to say that he is responsible, even including several projects that he has participated in, and there is no one with a lower level. Its just a return to normalcy now. Mr. Lin, your comrades from the Fifth Academy are responsible for the research and development of Ocean Ones hardware, so the subsequent work on software and hardware adaptation still requires our cooperation. Chang Haonan looked at Lin Senming who was so excited that he was speechless, but decided to break the awkward silence first. The main reason is that the other party is holding on to you and won''t let go, so being frozen like this is not an option. We must cooperate, we must cooperate. ?Lin Senming then remembered to put down his hand, and then quickly replied: I really didnt expect that a report meeting could have such a good effect... Chang Haonan quickly put his arms behind his back to prevent being controlled by the opponent again: "At the results report meeting, most of the audience below were unprofessional. They were either from other fields or simply engaged in administration. To put it bluntly, what they wanted to see was how great our results were, not why we were so good. sharp." "So, the starting point is to show the achievements we have made so far in the most intuitive way. If there are really no achievements now, then try to paint a bright future... Of course, you have to have a way to make people believe that the prospect you are talking about is exist. "Actually, today is nothing. After all, Ocean One is a mature project that has already been established and even has a future development plan. At most, it is just the icing on the cake... If you really want to say it, it is still the No. 10 project of the year... uh... that year Before the establishment of the project, there were also the two report meetings before the establishment of the 921 Project, which can be called the real change of destiny..." In fact, what Chang Haonan originally wanted to say was that the aviation engine industry conference that year directly reversed the layout of the entire aviation industry in China, and even the birth of the Aviation Power Group can be regarded as one of its aftermath. ?But then I thought about it and realized that although these were all true, what I said would inevitably sound like bragging. So the name was temporarily changed to Project 921 and Project 10... Fortunately, Lin Senming still hasn''t calmed down completely at this time, and he doesn''t care about the specific example Chang Haonan gave: Mr. Chang, its not too early to look at the time. How about take a rest and have a meal in our agency canteen? He knew very well that if he asked the other party to go outside, he would definitely be rejected. But even if the canteens of such large units do not have special reception areas like the Torch Group, they always have small stoves or similar configurations. In fact, Chang Haonan does not reject this kind of emotional contact within a reasonable range. ?In particular, his past connections were mainly in the aviation and machinery fields. As the grassroots backbone of the aerospace system, Lin Senming would definitely not hurt in having a good relationship with each other. But today Chang Haonan raised his hand and looked at his watch: "It seems a bit too early, it''s just after four o''clock..." He was a little hesitant, wondering whether he should go back to the office. Not from the Torch Laboratory, but from the Aerospace Power Group. In the past half month, because I have been busy with the contour segmentation algorithm, I have paid little attention to the situation in the group. ?Lin Senming looked at Chang Haonan''s embarrassed look and immediately stopped insisting: If Mr. Chang still has something to do, then we can wait for another day. Anyway, there will be many opportunities in the future... Also good. Chang Haonan nodded: After the Ocean One project is successful, Ill invite you to experience it in the canteen of Torch Group ?This sudden decision made Chang Haonan receive a phone call from Shengjing by chance. It was Liu Yongquan who called. Whats a little strange is that after the call was connected, the other party was stunned for a moment: Mr. Chang? It seems that Chang Haonan was not expected to be in the office at all. ?But it seems reasonable. In recent times, almost all matters that others contact me through the group level are communicated through Zhang Liangping. So to most people, he has indeed been "missing" for some time. Its me. Chang Haonan said as he took off his cotton hat and put it on the desk: "Today''s call, I guess... the test at Snecma has been completed?" Chang Haonan glanced at the date and thought that it had been almost a month since the other party got the test sample, even if there was a Christmas holiday in between. , it seems that there should be results. However, it turns out that he still overestimated the French''s work efficiency under normal circumstances... Thats not true. When I contacted Dr. Vesta a few days ago, he told me that work there has just resumed and it may not be completed until around the 25th. Liu Yongquan explained: Actually, it was Dassault. They contacted me through Snecmas employees stationed in Shengjing. Dassault Chang Haonan was unbuttoning his coat with one hand at this time. He couldn''t help but stop after hearing this answer: How did they find you directly? ??Although the two companies are cooperating on the Falcon Z project, this project is directly connected to Dassault by the Aerodynamics Headquarters. It does not have to go through the Shengfa Group one more time like the M88 project. So logically speaking, even if something happens, you should not go directly to Liu Yongquan beyond his level. Hmm I feel like its just a casual chat, and theres no intention of making a formal document, so its not convenient to contact you or other group leaders directly Liu Yongquan first made some speculations, and then continued: Those people went around in circles with me for several times, but they never made it clear. However, they went around and around to test our views on the Indian LCA fighter jet. LCA ?Chang Haonan finally took off his coat and leaned back on the chair. The sudden mention of this unpopular model made him a little confused. At this time, Liu Yongan added: In addition, they also accidentally mentioned that the Indians seemed to want Dassault to help them develop an upgraded model of the aircraft..." Ouch? Chang Haonan immediately sat up straight: Is there such a thing? Wellits just a few words mentioned by one of them, and it may not be true Liu Yongquan quickly explained. No, this was definitely not mentioned accidentally. Chang Haonan on the other side of the phone almost laughed out loud: I guess Dassault is worried that if they help the Indians develop new fighter jets, it may affect cooperation with us, so through you, I want to judge our countrys attitude towards the LCA model. After his analysis, Liu Yongquan quickly reacted: If this is the case...it does make sense... ?The two projects that Dassault Aviation Department is now ordered to look at are both tied to the Aerodynamics Group. ?In this case, no matter how high the price offered by the Indians, the former will still have to weigh it. ThenI dont know what you mean? Liu Yongquan asked. "Is this kind of thing...I am definitely not the one who can make the decision." ?Chang Haonan did not give an answer immediately. ?This matter involves three countries, and if it is taken seriously, it may affect foreign relations. Therefore, it is impossible for Chang Haonan to make a decision directly by overstepping his authority. That is simply seeking death. After a short pause, he changed the subject again: "However, I will make suggestions to my superiors on this matter. Just wait for my notification." Since Chang Haonan has said this, Liu Yongquan has nothing to worry about and immediately replied: "yes!" Attention, you should try not to talk about this matter with the French people before I give you a clear answer. Before hanging up the phone, Chang Haonan specifically asked: If they take the initiative to talk to you, then... Just go around in circles with them, I understand! Liu Yongquan came directly to answer the questions. Its good to know. Chang Haonan smiled and shook his head, hung up the phone at the same time, and then took out a piece of manuscript paper from the drawer of his desk, ready to start writing a report. ??If this happened to other countries, then Chang Haonan would probably really consider stopping the French. After all, military technology transfer is more sensitive than pure arms sales. The impact is also more far-reaching. But India ?Especially LCA Its really hard to say. Chang Haonan thinks that instead of cutting off all hope of the opponent, it is better to let the opponent continue to waste resources on this model - The LCA in the previous life did not really form combat effectiveness until he was reborn, and the subsequent improved MK1A type is also far away. As for the deeply modified MK2 type ? It only exists in legends. ?Furthermore, even if the Indians on this timeline are a little more cautious and have tinkered with LCA in advance... It doesnt matter. A large number of parts and raw materials for this model are imported from the West, causing the price of a "domestic" light aircraft to be comparable to that of an imported heavy aircraft. In other words, for every additional LCA the Indians have, there will be one less Su-30MKI. ?Chang Haonan can still settle this account. Hence his advice is very straightforward Ignore those Indians and let them do whatever they want. (End of this chapter) Chapter 969 Shocked French Chicken all year long! Chapter 969 shocked French Chicken for a whole year! at the same time. France, Paris. Snecma Group. ?Assistant Arthur Mondock placed a test report on Ian Vistas desk: Doctor, this is the test report of the sample, please take a look. ??Although Vista and Liu Yongquan have said before, the test will not be completely completed until the end of this month. But in fact, he still left himself some room for maneuver. In fact, starting a few days ago, the testing work has entered the last step, which is the operating temperature test. According to Vesta''s schedule, if everything goes well, the results will probably be available within the next two days. ?As long as it is completed, the report can be signed and handed over to the Chinese people so that they can start the next stage of research and development. Finally the results are out He looked at the folder on the table and couldn''t help but breathed a sigh of relief. Immediately afterwards, I am ready to briefly check the results and then sign. ?However, when Vesta was actually about to open the report, he suddenly realized that his mentality at this time seemed a bit complicated. On the one hand, the core engine of the M88-3 can be said to be the flagship product of the Snecma Group in the field of turbofan engines for at least the next 10-15 years. It is best if everything goes smoothly. ?Especially if the SeA series engines can break the monopoly of Rolls-Royce and Honeywell in the field of business jets, Vesta himself, as the project leader, may also take a further step within the company. But on the other hand, he had a little expectation in his heart. Looking forward to the Chinese design making mistakes in some less important places Since this report can be sent to him, it means that there must be no problem in the important places. The main reason is that the other partys design efficiency is really beyond the norm. During the previous time in China, Vesta even felt that the professional experience he had accumulated over the past few decades was challenged. In this case, it seems more reasonable to have questions... With this awkward mood, he took a deep breath and suddenly opened the folder in front of him. On the cover, there is only one title. M88-3 Turbine Disk and Turbine Blade Sample Test Report Vesta already knew the overall condition of the engine by heart, so he skipped the previous nonsense such as the model introduction and turned directly to the test results. Dimensional specifications, by Mass distribution, by Tensile strength in the cooled state, by As expected, several pages of content all meet the requirements. The results of some of the installed equipment tests are somewhat different from those when Huaxia tested the blades alone, but this is a normal difference caused by different working environments, and it does not exceed the specified performance range. It can be said that even if you want to find fault with the eggs, there is not much room for maneuver. It turns out to be...really... ?Vesta sighed helplessly while turning the pages. He already doesnt know how to organize words. The entire model, from design to production, completely exceeded his expectations. The same goes for performance. "Um?" Just when he was about to restructure his mentality, he suddenly found a corner mark in the upper right corner of the "Operating Temperature" entry on the next page. Generally speaking, this means that there is an issue that requires additional explanation in a comment. ?Vesta frowned, feeling somewhat conflicted. ?However, the movement of his hand was not slow at all, and he turned directly to the last page Generally speaking, the annotation content will be marked here. He quickly found what he was looking for: "Note 1: 1840K is not the maximum working temperature of the sample, but it already meets the testing requirements. Further testing requires replacing the combustion equipment before proceeding." Not the maximum operating temperature? ?Vista hesitated for a moment, raised his head and prepared to ask Mondoc about the specific situation. ?However, the latter had been paying attention to Vesta''s situation for a long time, and before he could ask the question, he answered directly: Currently, our test equipment can only obtain a stable combustion temperature of 1840K. If it is set to above 1850K, the data will be very unstable. "Engineers conducted a round of testing using a setting of 1880K. The actual temperature has been fluctuating between 1820K and 1870K. The results showed that the submitted samples could withstand temperatures within this range under working conditions. However, the conditions did not meet the test standards. , so I didnt write it in the report..." ?After hearing this, Vesta was dumbfounded. ?) Does this mean our test conditions are too conservative? When setting the technical specifications of M88-3 before, both parties decided to increase the operating temperature by 100K. Vesta already felt that this was quite an exaggeration. After all, without replacing the turbine base material, it is very difficult to achieve a vortex front temperature increase of more than 100K by means of heat insulation and heat dissipation alone. Basically, there must be cooling technology that is more than one generation different. ??If the Chinese come up with a radical impact cooling, or use a double-wall design, that would be relatively normal. But for both air film cooling, there can be such a big performance gap... At least in past theories, it was almost impossible. Now, the iron-clad experimental results are in front of him. ?That can only mean one thing. It is the past film cooling calculation method, which has problems. No wonder they designed it so fast ?Vestal felt that he seemed to be close to the truth The Chinese people should have developed a film cooling theoretical system that is different from the current mainstream, thus surpassing other countries at the most basic research level. Otherwise, if we rely solely on engineering experience, it would be impossible to overtake the established aviation powers in such a short period of time. ?Mundok, who was standing opposite, naturally didn''t know about Vesta''s brainstorming, and just answered the questions the former had just asked step by step: Yes, but did the person in the test workshop tell me that if you want to obtain a higher stable combustion temperature, you must either replace the fuel nozzle with a better atomization effect, or replace the fuel with a higher combustion temperature... ?Vesta waved his hand: There is no rush to measure higher temperatures for now. The turbine front temperature settings of M88-3 and SeA650 are between 1830-1850K. The measured temperature of 1840K is in line with the design standards. Now it is enough to know that the film cooling technology developed by the Chinese people has the potential to be further improved..." He said slowly while touching his chin. ?At present, due to the significant reduction in the expected M88-2 order quantity, coupled with the addition of an unexpected SeA project, Snecma is already relatively tight in terms of funds. Therefore, for Vesta, as long as it can complete the task at hand, there is no need to create extraneous matters. For further work, it will not be too late to wait until we see money back from these two models. "Doctor, since there is no problem with the test results, should we simultaneously report the situation to China Aerospace Power Group...and of course Dassault?" ?Mondoc saw that Vesta was slow to give further instructions, so he had to take the initiative to ask. Dassault can notify them immediately so that they can prepare to test the Rafale in the technical state of the F2. After the hot-end modification is completed, I estimate that it will be installed soon..." As Vesta answered, she tapped her fingers lightly on the table: The Chinese side will wait a few more days. What I told them before was that it would end around the 25th... Its not good to go too early... "clear." ?Mondoc nodded, then turned around to leave. But he was stopped by Vesta from behind: "etc." "PhD?" ?Mondoc stopped in his tracks. I remember that in addition to Rafale, Dassault is also selling the Mirage 2000-9, a deeply improved version of the Mirage 2000, to several countries. By the way, could you please ask them if there is any need to continue to increase the thrust of the M53 engine? As he spoke, Vista pulled out a few pieces of paper from the small bookshelf next to him. On them were printed numerical calculation results, with a lot of handwritten content next to them: I did some calculations during this period. If we use the experience we gained from studying the M88-2 engine to improve the M53 engine, we can probably increase the thrust by about 5% without affecting stability and life. (End of this chapter) Chapter 970 Now one is going down and the other is going up. Chapter 970 Now one thing is going down and the other is going up. ?Mondock took the calculation results in his hand and took a brief look at them. He found that they were about the performance calculation results of the M53 engine after replacing the high-pressure compressor and turbine blades. Obviously, Vesta, as a veteran Snecma engineer, has insufficient experience in the development of dual-rotor engines, but he is still quite good at using the technology he has learned to go back and optimize his old works. ?Of course, as a single-rotor model, the M53 cannot reproduce all the design elements of the M88-2. So, the performance improvement is not very big. Fortunately, the cost control is very good. Compared with the currently mainly produced M53-P2, there is basically only a normal cost increase caused by inflation. It is quite attractive for users who want to modify Mirage 2000-9. Doctor, do you need to mobilize some engineers from CFM International? ??Mondoc asked again while folding a few pieces of paper twice and putting them into the inner pocket of his coat: After China has completed the core machine design work, we have to put fan research and development on the agenda as soon as possible, otherwise the new engine may not be able to catch up with the Falcon Zs first flight. ?The vast majority of CFM engineers are not employed by GE or Snecma at the same time, and there is no such thing as "callback." ?However, some of the important management and technical leaders are still sent by the two parent companies. As for the development of civilian turbofan engines, CFM International does have more experience. Just on CFM56, French work is mainly focused on the research and development of the cold end including fans. It almost completely overlaps with SeA650. ??If we can get a wave of feedback, the work progress will indeed be accelerated a lot. ?However, Vesta did not nod immediately. ?Although there have been some discords between Snecma and General Electric in the past few years, the CFM series engines, as a cash cow for both, have basically not been directly affected. After all, it is not a listed company, so it does not involve the issue of investor confidence affecting the stock price. However, in the long run, there is always a question mark as to whether the two parties can continue to maintain this close cooperation on the next generation of CFM56 products. ?Mundoks suggestion to adjust human behavior back from CFMI will undoubtedly further aggravate the distrust between the two parties. If problems arise in the otherwise stable CFM International, it would be equivalent to a loss of blood at most for General Electric, which has a large business. But for Snecma, whose capital chain is extremely tight, it would be an amputation at least. . You can try it, but dont make it too obvious... In the end, after weighing the pros and cons, Vista chose a compromise plan. Contact Dr. Patty Grant and ask him to arrange for an absolutely reliable technical team to come back. The scale does not need to be large, even 3-4 people will do. Is this... a little too little? ?Mondoc was a little confused. ?An aerospace design team, even just at the cold end, usually requires three-digit technical personnel, not counting the non-core participants who are indirectly involved. 3-4 people, it does seem a bit stretched. Enough. ?Vesta stood up with support on the table and stretched his muscles a little: "As a small engine for business jets, the overall design of the SeA series engine is not even a medium bypass ratio. In fact, it is a small bypass ratio model. Moreover, the M88-3 is not the M88-2. The core engine level is already similar to the CFM56 There is a certain difference. "In short, what we need most now is not any specific technology, let alone making minor repairs based on other people''s designs, but referring to CFM''s R&D experience and management model, so there are a few people who have participated in project planning. It is enough to participate with the management people, so that you can also take turns to provide some support for reasons such as vacation. If there are more people, it will be troublesome..." ?As Vesta deployed its tasks one by one, two projects, Rafale F2 and Falcon Z, which had been dormant for several months, also became active. Especially the former. Almost at the same time as it confirmed the basic requirements for the hot-end performance of the M88-3 engine, Dassault released a specific timetable for delivering the upgraded Rafale C fighter jet to the French Air Force, and re-released the basic performance indicators of the Rafale in accordance with the F2 technical status. . ??Although it is impossible to shake out the specific performance such as flight envelope, due to the huge upgrade, even if you only watch a promotional video, you can feel that it is completely different from the previous F1. Without mentioning anything else, the improvement in the three indicators of thrust-to-weight ratio, climb rate and bomb load is enough to make many users who have not yet made a final decision reconsider their model selection. In fact, at the special request of Chang Haonan, Liu Yongquan also verified the built-in permanent magnet fault-tolerant power generation technology on M88-3. The principle of this technology is to cancel the contact rolling bearings, lubrication system and mechanical actuation system on the engine support shaft, and replace them with non-contact magnetic bearings and a built-in integrated starter generator installed on the crankshaft. This way, additional power generation can be provided without affecting thrust. Secondly, the bearing structure with the highest failure rate in the aerospace engine system can be eliminated, greatly simplifying production and maintenance operations and extending the mean time to failure. Of course, it is only a technical verification on the M88-3, so the mechanical structure is still retained for backup. Hitchh, however, this system can provide an additional 3.5kW of generating power for each M88-3 and SeA650 engine. Faced with such a surprise, Dassault even considered replacing the Rafale with a radar with better performance. But in the end, it was given up due to the too narrow size of the machine head in the original design. As a result, F2 still maintains exactly the same conditions as F1 in terms of avionics system, becoming a complete mechanical upgrade. But even so, its definitely not good news for its main competitors A few days later. UK, Cranfield University. Professor Roger Elinor was meeting in a small conference room with two other senior technical staff from Rolls-Royce and BAE Systems. Professor, we have indirectly confirmed the authenticity of the news through some special channels. The speaker was Tony Alder, a project manager in the aviation department of BAE Systems, who is mainly responsible for the development of the EF2000 fighter jet with several other partners. In other words, the information they released a few days ago was not just a propaganda strategy? Professor Elinor confirmed while playing with a pen. Im afraid so. ?Alder nodded: If the risk of deformation of EJ200 under large overload conditions cannot be completely solved, I am afraid that EF2000 will not have a significant performance advantage compared to the upgraded Rafale As one of the core leaders of the project, he is certainly aware of the hidden flaws in his own products. At present, Typhoon mainly limits maneuverability within a specific envelope through settings at the flight control level. But once mass production is delivered, the problem cannot remain hidden. ?Hearing this sentence, Elinor just fell into deep thought and remained silent. ? As a player who took over halfway, he has actually greatly improved the structural problems of EJ200. But such a thing as having a poor foundation has nothing to do with him. ?Seeing that Elinor didn''t answer a word, Alder also knew that this problem might not be solved in a short time, so he continued: In addition, we have also confirmed that the Falcon Z project currently being developed by Dassault will use dedicated power developed based on the M88 engine core machine, rather than using off-the-shelf products on the market. Of course, this news was shared with us by Honeywell Group, and its reliability needs to be further verified ?At this time, Luke Norris, who had not spoken just now, suddenly interrupted him: "This matter... we have actually expected it for a long time, but we don''t need any verification. After all, Falcon Z''s public partners include Snecma and China Aerospace Power Group, and they are obviously preparing to solve the power problem themselves." I am more concerned about whether their model will pose a threat to our business in Germany. At this moment, Rolls-Royce has also seen the trend of larger and longer-range business jets, so it is jointly developing the upgraded BR710C and the BR725 small bypass ratio turbofan with greater thrust with the BMW Group. engine. ? Expected launch users will include Bombardier and Gulfstream, the two kings in the field of business jets. ?At the same time, potential users of this series also include the U.S. Air Force They have always hoped to replace the B52 bomber with a brand new power source to replace the TF33 series engines that have been patched for half a century. Although the number of B52 fleets is small, after all, each aircraft has 8 engines, so the total number is quite considerable. Originally, there were no competitors in this segment. But now that a Frenchman appears halfway, it would be more uncomfortable if the market is robbed... (End of this chapter) Chapter 971 Guessed it, but not completely Chapter 971 I guessed it right, but not completely. In fact, while the British felt threatened, Snecma on the other side of the English Channel was not as joyful as the former imagined - ??For Dassault and Aerodynamics Group, as soon as Vesta signs the contract, the testing of the turbine components of the M88-3 engine can be considered over, and the next step is to enter the next phase of work step by step. However, for Snecma himself, it was far from the case. Dont forget, in order not to delay the critical time node, the samples used in this round of testing were all directly provided by China. So now the most we can confirm is that "there are no problems with the turbine components designed and produced by China." ??But what did the French make themselves... Dont know yet. ?So, after sending the test report to the two upstream and downstream partners, Vesta almost had no time to rest and immediately turned its attention to the trial production workshop. The materials, coatings and production processes used in the M88-3 turbine itself have not changed at all compared to the M88-2, with only slight differences in the outer contour parameters. But it is not difficult for the old industrial countries to solve the problem. In fact, from the beginning to the end, the semi-finished blanks used by China were provided by Snecma. Hence, the only technical difficulty that needs to be overcome is the final manufacturing of the air film hole. Since the end of November last year, when Vesta brought relevant technical data back to France, Snecma''s production department began to verify the process parameters of drilling according to the production requirements provided by China. However, we encountered huge resistance at the beginning, resulting in almost zero progress in the first few weeks. Let alone good products, we didnt even produce complete scraps. ?Following on, as the samples provided by the Chinese arrived, Vesta focused on the most urgent testing tasks. It is only now that all other work has come to an end that we have started to focus on production-level issues again. Doctor, these are the blade samples we made using different processing methods and processing techniques in the past month. Gene Duflo, the person in charge of trial production, led Vesta to a workbench, pointed to the dozens of turbine blade samples densely spread out on the table and introduced: We have checked the design documents and found that although the specific hole shapes involved in different parts are different, the basic characteristics and properties are the same, so in order to speed up efficiency, we all used blades with smaller area and thickness for trial production. " ?Vesta did not reply immediately, but just nodded, indicating that he recognized the other party''s choice. ?As long as the holes on the blades are clear, the holes on the combustion chamber and the turbine disk are basically the same. Is this all? After looking down for a while, he raised his head again and asked Duflo. Thats not the case. The latter shook his head: There are also some samples that couldnt even be successfully punched, so theyre not here. In general, if we dont consider production efficiency, we can produce products that meet the requirements. Of course, we can only say that they meet the requirements in terms of specifications. After all, they have not been systematically tested. While speaking, Duflo took out one of the leaves from a pile of leaves and handed it to Vesta. With the naked eye alone, it is of course impossible to tell whether the inner wall of the air film hole meets the requirements, so Vesta did not do any unnecessary things and just took a rough look at the outer surface. He noticed that at the root of the blade, the words "EHB-29" were written. EHB ??The movements of Vesta''s hands were slightly stagnant: You changed the process? In the past, Snecmas common process for processing air film holes was tube electrode electrolytic machining, and the sample abbreviation was generally TEE-xx. ??And more importantly, he could not see the annular etching marks left after the tube electrode processing around the air film hole ? Such traces only remain on the surface of the thermal insulation coating and will not affect the base material. The area around the air film holes is already a relatively low temperature location, and the requirements for thermal insulation are relatively low. Therefore, unless there are special requirements, an additional coating will not be applied after processing. Thats right. Duflo nodded helplessly: We have tested many times using tube electrode electrolysis, but the internal shape of their channel is too complex and the hole depth is relatively large. There is no way to avoid secondary corrosion caused by the gap surface on the opposite side of the electrode. "Furthermore, during the electrolysis process, the sodium nitrate solution will precipitate insoluble salts. In the past, we processed fan-shaped through holes, and even if there were salt crystals precipitated, they could be easily removed. However, this is also because the internal structure of this hole is too complex, and there may be some problems during the processing. There is a probability of more than 90% that the processing channel will be blocked. If the blockage is not processed in time, it will cause discharge breakdown. Not only will the workpiece be scrapped, but even the electrodes may have to be replaced..." "So later, we simply switched to the electro-hydraulic beam machining method. Because during the machining process, the electro-hydraulic flow will rush towards the workpiece at high speed, so no matter how complicated the inside of the hole is, there will be no clogging problem. This debugged about half of the parameters, we have obtained the first sample that fully meets the standards. He said and pointed to the EHB29 in Vesta''s hand. You just said...if you dont consider production efficiency... Vista looked at the blade in his hand and slowly said: "You mean the electro-hydraulic beam processing process is very cumbersome?" "yes" ?Duflo sighed, and then replied: "Theoretically speaking, electro-hydraulic beam machining is good at processing tiny holes with special angles. The diameter of the air film holes is calculated in millimeters, which requires repeated hole expansion in multiple stages. There are many air film holes on each blade, so processing The time has increased exponentially. The sample you have in hand, not including the process preparation stage, the production alone took almost a day and a half... Calculating this, it will take us about 45 days to complete the processing of all the components required for an engine..." Hearing this answer, Vesta couldn''t help but curled his lips. Although the demand for military engines is not high, building 9 units a year is too abstract. Even if the proficiency issue is taken into account, the mass production speed will be doubled. Eighteen units a year is still not enough. Not to mention the civilian models that will be derived later. You know, when they first came to China, they originally just wanted someone to help solve the reliability problem of the M88-2. As a result, it became a slippery **** to help with performance upgrades throughout the life cycle. Further on, when it came to the SeA series of products, even half of the development leadership was taken away by the other party. If mass production occurs in the future, we will have to rely on others to complete key processes... ?Vesta couldn''t help but take a breath of air. He had never had time to think about it carefully before. The result is now that I think about it. It seems...not completely unacceptable? ?Thinking of this, Vesta quickly shook his head, trying to drive away the random thoughts in his mind. At the same time, he warned himself that this must be affected by the sausage-slicing tactics. In order to divert attention, he quickly asked a new question: Have you studied the samples provided by China? Can you refer to their hole-making methods? In the past, Vesta would never have said such a thing. But now, even he himself has begun to use Chinese technology to upgrade the M53-P2, so it doesn''t matter. Of course, after hearing the test results came out a few days ago, we asked for a few brand new blades for backup. ?While speaking, Duflo turned around and walked to a computer and opened a Word document placed on the desktop. ?Vesta also moved closer to the screen. Judging from the conditions of the inner holes, we can indeed find some significant processing features, but when combined... it is difficult to determine what kind of process it is. Duflo said in a troubled tone as he scrolled down the page. "Through a high-performance microscope, the remelted layer can be vaguely distinguished from the inner wall of the air film hole. Although the thickness is very small and will not have any impact on performance, it is definitely a trace left by thermal processing. In addition, Huaxia''s technology The staff has previously published an influential paper in Nature, and the content is indeed related to laser processing. " However, the entire blade has neither thermal stress nor micro-cracks, even those that only exist on the surface of the coating, and it does not look like the product of pure laser processing..." I have read the paper you mentioned. ?Vesta suddenly interrupted: Not only China, but also the British are actually studying related technologies of using high-energy laser to process turbine components, but as far as I know... the situation is not optimistic. Rolls-Royces Trent900 engine is stuck in processing efficiency. It is said that the yield rate is too low, resulting in high costs. This is also the biggest advantage of its rival GP7200..." In the field of civil aviation development, except for the core technical level, everyone is generally relatively open. ?Hence, although Snecma cannot participate in the competition for this ultra-large thrust level aircraft, you can still get relevant news in a timely manner if you are willing. ?However, Duflo is only a mid-level technician and is not very interested in things that he cannot participate in, so he continues the original topic: So...the direction we are currently considering is whether the Chinese use composite processing technology, such as electrolyte jet-assisted laser processing, which can at least explain why they can control thermal stress and remelted layers. Of course, this is a relatively new technology for us, and we may need some additional funds to purchase new equipment and test consumables. Tu Qiong dagger sees it and it belongs to it. It is naturally impossible to develop new technologies without money. ??Vista certainly understands this, but the groups funds are indeed somewhat tight right now. How feasible do you think it is? After hesitating for a moment, he finally spoke and confirmed. Even if the pure electro-hydraulic beam process can be successful, the efficiency of the composite processing will not be lower at least. ?Duflos first sentence was very straightforward, but then he changed the subject: As for whether we can achieve the level of Chinese people...I cant make a conclusion yet... (End of this chapter) Chapter 972 Production finalization and identification, as well as future plans Chapter 972: Production finalization and identification, and future plans It must be admitted that Duflo''s guess is very close to the truth. ?In the process developed by Chang Haonan, it is indeed necessary to immerse the parts to be processed in a neutral salt solution. In fact, for this step alone, if the workpiece can be washed with an electro-hydraulic beam coaxial with the laser instead of simply soaking it, like the former, the effect will be better. It''s just that China is really lagging behind in terms of micro valve pumps, so in the end they used such a powerful method to achieve miracles. However, the article Chang Haonan used to deceive his competitors was indeed too effective, and coupled with some fixed thinking, Duflo missed the most important part of the entire process Pulsed laser. ?Of course, that paper cannot be valid forever. ?Sooner or later, everyone will find that the thermal effect is a dead end. ??Moreover, as China gradually begins to apply ultra-short laser processing technology on a large scale, relevant news cannot always be suppressed. But even if that day comes early, the impact will not be great. Laser non-thermal processing is completely different in principle from the common thermal processing in the past. Changing the continuous laser in the process to a pulse laser is not just a matter of changing the laser alone. It also involves the updating and development of a series of interaction models and numerical algorithms. This work, with systematic assistance, took Chang Haonan on and off for more than a year to barely complete it. Let alone others. Furthermore, when everyones research reaches the final stage, Chang Haonan can rush to register several key patents before others. Unless someone is unlucky and tries out the correct result directly from countless permutations and combinations of process parameters. ?Then Chang Haonan will start to consider whether a second person is also cheating... ?However, at this moment, Chang Haonan can''t pay attention to the trends of his friends and businessmen. Because, a very important node for him is right in front of him. Mr. Chang, this is the situation explanation letter sent by the Services and Arms Equipment Bureau ten minutes ago. Zhang Liangping said as he put an envelope with a note on it in front of Chang Haonan. Hearing this unit, the latter quickly looked away from the computer screen and took it apart as quickly as possible. The Services and Arms Equipment Bureau is a second-level unit under the General Armament Department. ?Although the rank is not very high, he is responsible for the finalization and appraisal of naval, air, and second artillery equipment. ??If it is a non-key model, the second-level committee will be formed directly by them. Even if it is a key piece of equipment that requires a first-level commission, a lot of manpower needs to be transferred from it. In short, it is one of the most critical departments among Party As boss. Therefore, although what was sent was an official letter rather than an instruction, it still had to be treated with emphasis. Inside the envelope is a red-headed document. [Our bureau has received feedback from various combat forces and flight research institutes on the turbofan 10 engine. A total of 36 prototypes and mass-produced aircraft of the two sub-types have accumulated installed operating hours of more than 10,000 flight hours. The data records are good. The trial evaluation was excellent. The military representatives stationed at the factory had a clear understanding of the production process and determined that the process met the standards...] [Based on the above situation, our bureau believes that the WS10 engine has passed the military trial and production finalization test, and is qualified for subsequent assessment. Please sort out and submit relevant documents as soon as possible...] Originally, Chang Haonan was a little worried about whether there were any problems that he needed to solve urgently. The result is great news. Okay, okay, okay! Looking at the two thin pages of paper in his hand, Chang Haonan said three good words in a row, and then looked up at Zhang Liangping: Lao Zhang, please immediately draft a notice to Institute 606, explain the situation, and tell them to prepare for the craft assessment in early February. If everything goes well, its best to finish it before the Spring Festival! To sum up the contents of this document, Party A has basically recognized the performance and stability of the turbofan 10, and stated that it can organize production and finalization appraisal Compared with design finalization, the current national military standards do not provide detailed provisions on the specific process of production finalization. It only states that production finalization should include four parts: organizational process and production condition assessment, troop trial, production finalization test, and organizational production finalization review and approval. Generally speaking, during the process of small batch trial production and delivery, the second and third items can be completed incidentally. As mentioned in the document just now. The relevant documents required by the Equipment Bureau to be submitted by the Aerospace Power Group involve the remaining two items. ?This process does not include a large number of high-risk extreme tests like design finalization, but mainly some production site and written review work. It may even seem a bit boring. But for Chang Haonan and the entire project team, it is the most important milestone. Meaning that the technical status of the two turbofan 10A/B models has been frozen, small batch trial production can be ended, and the mass production stage has officially entered. Dont underestimate the difference between these words. A lot of equipment, used until retired, may still be labeled as "small batch". More importantly, after this, Chang Haonan can truly be freed from the Turbofan 10 project itself and devote his main energy to new challenges. Three weeks passed quickly. The production of Turbofan 10 is finalized and everything goes smoothly. It even went so smoothly that it was beyond Chang Haonan''s expectations. The date for the production finalization appraisal and production line acceptance meeting was finally set on February 10th, the eve of the Spring Festival. Actually, it is similar to the graduation defense situation. ?When it is decided to hold an appraisal meeting, it means that the project has been stabilized - Because the project in question simply cannot reach this step. ?Of course, even so, Chang Haonan was fully prepared. Especially when it comes to ultra-short laser processing. Mainly I am worried that if I explain it briefly, others will think it is not detailed enough, and if I explain it deeply, others will not understand. ?However, it turned out that he still thought too much. With the support of a large amount of testing and usage data, there is simply no room for improvement. So much so that the speed at which each link announces the approval of the certification is much faster than the speed at which the corresponding person in charge signs and seals it. ??The meeting that was originally planned to run from morning to night actually lasted less than three hours and there was no content... ?As a result, the entire venue fell into a somewhat embarrassing silence. Only the rustling sound produced by the pen tip crossing the page... Finally, it was Lu Zengwu, who was responsible for the entire finalization appraisal, who took the lead in breaking the silence: "Mr. Chang, I saw the process description document you submitted. It says that the maximum annual output is expected to be nearly 200 units?" For China, the last time it could produce so many engines annually was when it even built a turbojet 6 for the J-6... "Um" Chang Haonan nodded slowly: Lets estimate it conservatively...After all, we are required to submit a lower limit for the production type test, and there may actually be more. But have you ever considered that most of this capacity is likely to be idle? After Lu Zengwu finished speaking, he may have felt that this question was a little offensive, so he quickly added: This...problem related to production and finalization is completely over. Now its just my personal curiosity..." Chang Haonan waved his hand to indicate his understanding: Right now, there may indeed be no need for so much aerospace production capacity, but as an enterprise we must not just look at the present, but must make plans for the future in advance. "Among other things, the SeA series engines we are currently involved in research and development may account for 20-30 units of production capacity per year in two to three years. As my country''s economic development continues to accelerate, the frequency of aviation equipment upgrades will also gradually increase. Increase, and including the backup parts required for overhaul and maintenance, it is not an exaggeration to have a production capacity of 100 units per year..." In addition, we expect to launch a turbofan 10 aerospace modification project after the year. The Navys demand for this model is not small. Calculating this, as long as we add one or two additional businesses, we can fill this 200 million yuan per year. Taiwans production capacity may not be enough After saying this, not only Lu Zengwu, but also many people who were bowing their heads to sign raised their heads. Can weneed100 engines per year? ?Lu Zengwus eyes widened and he couldnt even speak very fluently. Chang Haonanxin said: If I tell you that China can produce a total of more than 80 third- and fourth-generation aircraft of various types in the future, I am afraid I will scare you out of your wits... ?Of course, this is just a rant in my heart, and I definitely cant say it out loud. ?So, he had no choice but to change his approach: Everything is possible in the future. Director Lu, if you think about it, it doesnt take too long. When the Turbofan 10 project was first established, who could have predicted what would happen five years later... (End of this chapter) Chapter 973 Invite him to a meeting! Chapter 973 Invite him to a meeting! ?After the production of Turbofan 10 has been successfully finalized, the project establishment work of Turbofan 20 and QC300 gas turbines... Of course we wont start right away. ?Chang Haonan is not a devil. The buffer period must still be left for comrades. Otherwise, he doesnt have to stress about completing the appraisal meeting before the Spring Festival. ??The day after Chang Haonan returned to the capital from Shengjing, it was already the 29th day of the twelfth lunar month. By the way, he also asked his parents to be brought to the capital. At the moment, the management of holidays is not so strict, so the holiday starts from the first day of the first lunar month. However, in fact, many less important positions no longer work on New Year''s Eve. Basically, the twenty-nine is the last serious working day. Since the lunar year and the natural year do not coincide, Chang Haonan does not have much to do such as year-end summary. ? It is customary on this day to send written New Year greetings to leaders, subordinates or acquaintances in four capacities: myself, a professor at Beihang University, the general manager of Torch Group, and the chief planner of Aviation Power Group. It is similar to the New Year greetings messages many years later. Although most cases can be dealt with with unified copy and paste, there are still some people who need to pay attention individually. Handwritten signatures are a good way to do this. And deploy some businesses that cannot be suspended even during the Spring Festival holiday. For example, external liaison and so on. Other partners dont celebrate the Spring Festival. For such a large group, it is impossible to completely shut down. ??When Chang Haonan finished processing the last congratulatory letter, he felt that his wrists were already a little sore. So, he called Zhang Liangping and asked him to come over and take the letters and seal them separately. The subsequent letter delivery work will naturally be completed by a dedicated person, and Chang Haonan does not need to do it himself. Next, just wait for Zhang Liangping to come over and simply arrange the work for the next few days to him, and today''s task will be considered over. As New Years Eve approaches, even Chang Haonan is ready to catch a fish and go home early I worked overtime crazily when the Turbofan 10 was not finalized. Now that the Turbofan 10 is finalized, if I still work overtime crazily, wouldnt the Turbofan 10 be finalized in vain? However. ?When the office door was knocked and then pushed open, Chang Haonan''s heart, which had been released, suddenly sank. Because, besides Zhang Liangping, there was also Song Jingming who was wearing a cotton coat and his shoulders covered with snowflakes... At this time, the latter ran over to find him despite the heavy snow, obviously it was impossible just to pay New Year greetings. ?Zhang Liangping quickly collected all the letters on the table. Chang Haonan motioned to him to go back first and talk about work later. So, only Chang Haonan and Song Jingming were left in the office. Mr. Chang, I wish you a Happy New Year in advance! ?Song Jingming came up and paid his respects to Chang Haonan. Okay, happy New Year to you too. The latter waved his hand and motioned for the other party to sit wherever he wanted: Lets talk about something... When Song Jingming saw this, he got to the point directly: Thats right, we have basically completed the preparations for the Numerical Algorithm and Computational Science Conference you arranged previously, and the plan is to hold it at the end of March. The entire process is basically in line with the highest-level academic conferences in other industries. There is nothing special about it. There are just two things that you need to confirm in person. He said as he took out a notebook from his pocket and opened it: "The first is the numerical calculation competition before the conference. Since we promoted it at the end of last year, so far, the number of registered universities and research institutions has exceeded three digits, and many schools have multiple teams registered. The total number of participants It must be more than a thousand." Considering that the competition will be held offline, should we consider setting up a preliminary round or group stage in several locations, and finally select only the top one-fifth or one-quarter of the teams to participate in the finals? After all... if there are too many people, it will also be stressful for our review team and field management team. As the chief planner and directly responsible person, Song Jingming still felt a little guilty about arranging foreigners of this scale. Have never had any relevant experience in the past. Theres no need to make it so complicated Fortunately, Chang Haonan has already considered these things relatively maturely: The preliminary competition can be held online, with several relatively low-level questions set up, and each participating group submitting corresponding engineering documents, and we will evaluate the calculation results. Besideswhats there to worry about when there are so many people? Chang Haonan smiled: We dont need to pay for the contestants travel expenses, food and accommodation. They come in large numbers and they always have to spend money in the surrounding areas. Wouldnt it actually promote the economy... ??Torch Group still has 100 million points of influence in the numerical computing business. ?Be it competitions or conferences, except for a few big players, there is no need to attract foreigners to participate by issuing subsidies. As long as you set up an honor with enough influence and a bonus, it is enough. ?However, after Song Jingming heard this, he frowned with concern: But Mr. Chang, our competition rules prohibit instructors from participating. If we use an online method, how can we prevent contestants from cheating? Its easy, dont avoid it Chang Haonan gave the answer almost without thinking: Our preliminary round is not based on the overall proportion, but based on the school or institution. That is, each school can only send one undergraduate group and one graduate group to participate in the finals. "In this way, no matter what form they use to pass the preliminary round, they will have to show their true results offline in the finals. If they find the instructor to cheat in the preliminary round, it will only make their school more embarrassed in the final..." This idea actually puts the pressure of preliminary selection on the school''s head. ??If the school does not want to be embarrassed in front of its peers, it must ensure that the team it sends is strong enough and naturally has incentives to fight against cheating. ?Of course, it is impossible to completely guarantee fairness in online competitions. But first of all, the fairness aspect is guaranteed by the finals, so it wont be particularly ugly. Secondly ?The core purpose of this competition is not to sort participating schools into thirds, sixths, or ninths, but to dig a hole for COMSOL to jump into ? Even if all foreign teams choose to use TORCH Multiphysics software to compete, Chang Haonan himself will specially arrange for a few less prominent domestic schools to use rival products. Combined with specially designed tricky questions... In short, after the final results come out, everyone will notice the serious loopholes in COMSOL Multiphysics'' CFD calculations. As for who is the champion There is a high probability that no one is paying attention to it. Thentheres another thing. After writing down Chang Haonans instructions, Song Jingming took out a folder from his briefcase and placed it in front of Chang Haonan: This is the list of special guests for this conference. Is there anything you want to add or delete? Special guests, as the name suggests. Compared to ordinary participants who submit their own applications and receive approval, the people on this list are actively invited by Torch Group to attend the conference. ?Of course, there are definitely differences in treatment. At least it is impossible for these people to pay for food and accommodation at their own expense like other participants. ?Chang Haonan opened the folder and found that there was a list of three pages in total, front and back. In addition to the name and work unit, there are also main academic achievements, contact information, personal willingness to participate in the conference, and a headshot. Approximately twelve or three people have been confirmed to be able to come. ?Basically all the big names in the field of numerical computing who are still active in the academic frontline ?This field is too close to engineering and relies more on experience than theory in most cases. Therefore, it is not as easy to produce many famous names as in subjects such as mathematics or physics. ?Except for a few outliers such as Anthony Jameson and of course Chang Haonan himself, few people can single-handedly make any huge achievements that promote the development of the entire research field. ?Hence, even Chang Haonan can hardly think of any missing candidates. He closed the folder and prepared to end the conversation: Thats it ?However, at this moment, a name suddenly flashed in his mind. Harold Huang. It is the professor who contributed to the first issue of JCAS journal. ?The other party used a method called "high-order flux reconstruction (FR to unify several compact and high-precision formats that have appeared in recent years. ?This result did not cause much trouble at the time, and the number of subsequent citations could only be considered moderate, but Chang Haonan was very optimistic about its development prospects. It just needs to further promote its application scope. Originally, his plan was to invest some resources in this direction after the 2.0 version update of TORCMultiphysics was completed. But after that time, Chang Haonan seemed to have never seen papers published in the name of the other party. Old Song Dynasty. He reopened the folder, took out a pen, wrote "Harrod. Huynh" at the end of the list, and handed it to the other party: "There is a professor named Harold Huang at Ohio State University. I will send you his email address and research group URL later. You can contact him to see if he is willing to attend the meeting. If so, Together as special guests. Harold Huang ?Song Jingming took the folder: Are you of Chinese descent? It doesnt look like it. Chang Haonan shook his head: It should just be a coincidence of the transliteration of the surname. When I looked up information before, I seemed to have never heard of this name... ?Song Jingming frowned slightly, worried that there might have been some oversight in his work. Youre right if you havent heard of it. Chang Haonan leaned back on his chair, turned around and looked at the snowy scene outside the window: This guy is not very well-known in academia, and I wouldnt have known his name if he hadnt happened to contribute a paper. "But this kind of person is the one we should focus on..." After confirming that it was not his fault, Song Jingming breathed a sigh of relief: Then, the reason for the special invitation in the meeting communiqu Just write what I invited. ?Chang Haonan replied simply and neatly. (End of this chapter) Chapter 974 Do you want to celebrate the New Year together? Chapter 974 Do you want to celebrate the New Year together? As the general manager of Torch Group, Chang Haonan is not only the sponsor of this conference and competition, but also his reputation is at the top level in numerical calculation and even the entire field of mathematics. Hence, his decision to invite a particular person can indeed be directly used as a reason. Furthermore, the meeting communiqu. A summary will be issued after all agendas have been completed. ?At the level of Professor Harold Huang, even if he just reorganizes the paper published in JCAS last year and reports it, it will be enough to trigger a big enough response at the conference. Besides, although the other party has been keeping quiet for nearly a year, it is impossible for him to really stand still. Even Chang Haonan is looking forward to whether the other party will have any new results that have not been published yet. As far as he knows, Professor Huang''s research direction does not seem to be very popular in the United States. ??This meeting is also a way to keep in touch with each other. When the conditions are mature later, we will consider digging it out. ?These days, there are many foreigners who come to China with unknown reputations to show off and deceive, but there are too few who have real talents and learn from them. ??Torch Group can definitely set an example in this regard. On the other side, Song Jingming also quickly wrote down Chang Haonans request in his notebook, and then stuffed everything in his hand back into his briefcase: Mr. Chang, Ill be fine today. Just dont forget to set the questions. If there is one more round of preliminary rounds, you should need to add another round of question banks... Dont worry about the questions. Chang Haonan replied: I have prepared the questions for the finals a long time ago. As for the preliminary round... I think we can let the special guests of this conference, including myself of course, each come up with a question, and then we will randomly draw from them. Thats good too Song Jingming, as the main person in charge of the entire conference including the competition, naturally knew that Chang Haonan was going to dig holes for COMSOL in the finals. But he doesnt understand technology and doesnt know how Chang Haonan operates, so he can only make one move on issues related to the topic. ?After handling the affairs of the Aviation Power Group, Chang Haonan still got what he wanted and escaped in advance. ?On the way, he asked Zhu Yadan to take a side trip to the Torch Laboratory Actually, there was no such arrangement, but when Song Jingming was leaving just now, he suddenly mentioned the competition test questions to Chang Haonan. After the latter finished answering the questions, he conveniently placed the floppy disk in the laboratory. After much thought, he decided to go and get it. After all, according to the schedule, when the annual vacation is over, it will be time to enter the preparation stage for the preliminary competition. So the question really has to be done during the holidays. Fortunately, for Chang Haonan, who has experienced many battles now, it doesn''t take much effort. The problem with the finals is troublesome because the subject areas related to the questions must be specially designed, and even some specific numerical values ??must be specially designed, so that the calculation process involves high calculation weight issues, which can trigger the BUG of the finite volume method. There is no need to consider these in the preliminary round. Just pick up two relatively simple projects from Liu Hongbo, and then abstract the problem a little bit. About an hour later, two cars drove into the gate of the Torch Laboratory one after the other. ? It is already early 2002, and the laboratorys new location outside the Fifth Ring Road has been completely completed and put into use. Since the testing center of the laboratory is a national-level basic scientific research platform, in addition to the teachers and students of Chang Haonan''s research group, there are also many technical personnel from other units such as the Ministry of Science and Technology, the Beijing City Science and Technology Commission, and the Chinese Academy of Sciences. This works. Therefore, even though it is already the 29th of the twelfth lunar month and Beijing Hang University has already had its winter vacation, there are still many people coming and going in the laboratory compound. Professor Chang, happy New Year... Mr. Chang, Happy New Year! Teacher Chang From the moment he got off the car, Chang Haonan received New Year greetings from almost everyone he met. Even though he barely recognized any of them, they were so enthusiastic that he had to at least nod. ?As he walked all the way into the main building, he even felt a little sweaty. ??The Torch Laboratory implements a separate access system for different areas. Among them, the above-ground part of the main building has the highest authority. Almost only people from his research group and a few people from the Torch Group and the Academy of Sciences can enter directly. Everyone else must apply in advance. Therefore, unlike the situation outside, it seems deserted here. Ive covered myself up so tightly, how come everyone can still recognize it... ?Chang Haonan took off his hat and scarf and complained helplessly. ??Zhu Yadan, who had been following silently behind him just now, showed an expression that he couldn''t bear to look at: I think it would be strange if they didnt recognize you, Chief And since the beginning of winter this year...no, including previous winters, you have always dressed up in the same way. Even if you are someone you dont know well, you should be able to remember it after seeing each other a few times..." "Uh..." Chang Haonan stopped suddenly and looked down at the hat and scarf in his hands. Although I dont want to admit it, it seems to be the case. ??If Zhu Yadan hadn''t mentioned it specifically, he wouldn''t have even noticed it. Actually, I have many sets of the same clothes that I change between, and I dont wear this one all the time Of course I know. Zhu Yadan replied: But I cant control what other people think This answer made Chang Haonan feel a little worried In the eyes of others, I wont be the kind of sloppy person who doesnt change my clothes for a month... ?But soon, he suddenly thought of another more important thing: Speaking of which, if I wear the same thing every day, will it affect your security work? For example, someone can recognize you from a long distance away. ?Actually, Chang Haonan didn''t understand this. He just watched some assassination-related movies in his previous life, and similar things seemed to be mentioned in them. Thats not true. If it really had any impact, I should have warned you long ago. Zhu Yadan immediately shook his head: "After all, you are in a generally safe big city rather than on the front line, so the focus of security is still on the schedule and itinerary. As for after you get off the car...even if you change one piece of clothing every day, as long as others look at your standing position, it will actually be very different. Its easy to find key targets among the crowd. Or in other words, if someone really pulls out a weapon within a dangerous distance, then the security work has been considered a failure..." Chang Haonan breathed a sigh of relief after the explanation. Thinking about it carefully, you are right. When you are speaking on stage or attending some event, your name tag is written out and placed in front of you. There is no need to rely on clothes to identify your identity. ?Besides, is there really any security guard who can set up a sniper within 200 meters? No way? ?While chatting with Zhu Yadan, the two of them had already arrived at Chang Haonan''s office and found the floppy disk box buried deep in the drawer. In fact, at this moment, early forms of U disks have begun to appear on the market, but their application scope is relatively small and their stability is relatively poor, so they have not yet been fully promoted. In the case of low storage pressure, floppy disks still occupy a relatively mainstream market. In fact, when Chang Haonan was just reborn, he thought about whether he should open a company in advance to register the USB flash drive and make a fortune from it. ?However, before he had time to start doing this, he had already taken off within the Committee of Science and Industry system. Within the next two years, he even reached the position of chief planner of the Aerospace Power Group. Considering that the USB interface flash disk patent is ultimately owned by a Chinese company, it would be a bit ugly if it were to compete with its own people again. ??Moreover, there is a suspicion of bullying others. So, in the end, it was settled. Professor Chang? ?Just as Chang Haonan was recalling the past in front of a box of floppy disks, a familiar crisp voice suddenly came from the door. Chang Haonan, who was awakened, raised his head and found that it was Yao Mengna standing outside. Teacher Yao? Chang Haonan looked at Yao Mengna, who was wearing a beige windbreaker and slim jeans, and was a little confused: Isnt it already a holiday? You didnt go home this year? Well...the previous project on polyphase diagram segmentation algorithm is about to be approved, so I have been busy in the laboratory for a few more days..." ?Yao Mengna explained: I originally bought a ticket for today to go home, but... there was a sudden snowstorm over there, all flights were canceled, and train tickets were temporarily unavailable..." At the end, there was a little grievance in the ending. ?Zhu Yadan, who was standing next to Chang Haonan, could tell that this tone was at least 60% fake without raising her head. ?Even the fact that you can''t go home may not necessarily be a real emergency. After all, people who really want to go home should check the weather forecast in advance. How could they find out that they cant go back until the event is about to happen? ??If we further speculate from this, even if Chang Haonan does not come to the Torch Laboratory today, I am afraid that he will receive a call from the other party complaining about it tomorrow at the latest... ?But after thinking about it, she chose to shut up. Judging from past experience, whatever happens next will have nothing to do with security work... And Chang Haonan Certainly not as sharp as Zhu Yadan. ?Looking at the senior sister at the door, he almost said something mysteriously: How about go to my house tomorrow to celebrate the New Year? (End of this chapter) Chapter 975 Excellent hunters often appear as prey Chapter 975 Excellent hunters often appear as prey... As soon as these words were spoken, Zhu Yadan next to him immediately put his hand on his forehead and looked helpless. ?There is really no resistance at all. Fortunately, he had already known about Yao Mengna''s situation and background through his superiors, and knew that the latter was definitely not up to no good. Otherwise, Gao Liao will have to remind Chang Haonan to pay attention to the risks. As for Yao Mengna at the door, she was even more overjoyed. As Zhu Yadan had guessed before, she deliberately stayed alone in the capital during the Chinese New Year this year. As expected, she will contact Chang Haonan later today and cry out about her "tragic experience" of being unable to return home due to the snowstorm The heavy snowstorm is real, and the grounding of planes is also real. Given the speed of trains in this year and age, even if Chang Haonan could help solve the ticket problem, it would be impossible for her to get home before the first day of the Lunar New Year. ?Yao Mengna has even thought of a series of follow-up words to induce Chang Haonan to take the initiative to take her home for the New Year. In her speculation, the other party should be the only one in Chang Haonan''s home. Add yourself. Its New Years Eve again. It will definitely not happen if something happens. ?But the warmth is definitely quite high. The actual situation was even smoother than Yao Mengna expected. She didnt even have to make a phone call intentionally. When I was getting ready to get off work, I discovered that Chang Haonan appeared in the office... It seems that everything is an arrangement of fate! ?Of course, if you are happy in your heart, you still have to be reserved on the surface. Its impossible for you to ask me to go and Ill go right away. ?Thats too casual. Thisis not very convenient Yao Mengna deliberately showed some hesitation. She has it all planned out. ?As long as Chang Haonan insisted a little more casually, she would agree to it. However Chang Haonan actually nodded directly: "Well...if you find it inconvenient...that''s true." "Otherwise, if you haven''t prepared any New Year''s goods, I''ll ask Yadan to give you some tomorrow..." ? ? ? For a moment, both Yao Mengna and Zhu Yadan were stunned when his name was called. ??This plot direction...why doesn''t it feel right? Especially the former. ??The lines I had already thought of were stuck in my throat. I opened my mouth several times, but my mind was completely confused and I couldn''t think of anything to say to save the situation... Actually, Chang Haonan cannot be blamed for his emotional intelligence problems this time. The main reason is that the information on both sides is not equal. From his point of view, although he and his senior sister are interested in each other, there are parents and a younger sister at home during the Chinese New Year, and the latter is not the kind of extroverted player who is particularly familiar with each other, so it is reasonable to feel a little awkward. There is absolutely no need to force others to pass. ?However, Yao Mengna had no idea that there were other people in Chang Haonans family... After going back and forth, the direction of thinking about the problem will naturally be different. At this time, Chang Haonan had turned back to look at Zhu Yadan: Yadan, tomorrow you will bring the Spring Festival couplets, lanterns and food that the group distributed before..." ?Seeing that the opportunity she had finally created was about to slip away from her fingers, Yao Mengna no longer cared about being reserved at this moment, and quickly interrupted Chang Haonan''s forward wave of casting: "No...I''m not saying it''s inconvenient for me...I''m worried that it''s inconvenient for you..." "oh" ?Chang Haonan looked back again: Then theres nothing inconvenient for me...at home... He originally wanted to say that my home is big and has many rooms, and it can accommodate a few more people. But when the words came to my mouth, something felt wrong, so I swallowed them back. Thenthen I ?Although everything was planned by her, it was still a bit embarrassing for Yao Mengna to say it directly. But this time she didnt dare to go around in circles: Should I go to your place tomorrow afternoon? Dont spend the afternoon either. ?Chang Haonan stood up and pushed the office chair back under the table: Ask Yadan to pick you up before lunch, otherwise it will be very troublesome for me to come in by myself. Okayokay. ?In order to avoid long nights and many dreams, Yao Mengna quickly agreed. ??Then he turned his head slightly to hide the unnatural blush on his face... ??Seeing that Yao Mengna, who was still holding her head slightly, had turned into such a look in less than three minutes, Zhu Yadan, who had just been complaining about Chang Haonan''s lack of enlightenment, couldn''t help but take a breath of air-- She suddenly thought of a new possibility. Excellent hunters often appear as prey... ????Could it be... Is all this part of Chang Haonans plan? After parting ways with Yao Mengna and returning to the car, Zhu Yadan did not light the fire immediately as usual. Instead, he turned around and asked in a somewhat uncertain tone: "Mr. Chang, Teacher Yao... doesn''t she know there is someone else at home..." ?As for people, no matter what their identity or status, it is impossible to completely eliminate the gossip mentality. The same goes for Zhu Yadan. The reason she asked this was because she wanted to know whether what happened today was planned in advance by Chang Haonan. Being reminded like this, Chang Haonan also reacted: "Indeed...she shouldn''t know..." But it shouldnt delay anything, right? Its Chinese New Year, its lively when there are many people ?Zhu Yadan glanced at Chang Haonan''s expression through the rearview mirror. Everything is business as usual, no clues can be seen at all. This made her have some doubts about her guess just now. ?But it doesnt seem difficult for someone like Chang Haonan, who is in a high position, to hide his true thoughts... Fortunately, gossip is gossip, and Zhu Yadan did not forget his job. After some exploration to no avail, he returned his attention to the road in front of him... Since the whole journey is on the outer ring road, there is almost no time wasted on the road. Chang Haonan had already arrived home before dinner. Dad, Mom, I have a friend tomorrow who wants to... As soon as he entered the house, Chang Haonan originally wanted to tell his parents that Yao Mengna would come to celebrate the New Year at home tomorrow and ask them to prepare an extra lunch and New Year''s Eve dinner for one person. As soon as he opened his mouth, he noticed a figure wearing a blue shirt sitting on the sofa. Jia Yao? ?Chang Haonan was a little surprised: Dont you have to be on duty this year? Chang Jiayao has already signed up with the doorman, so she can get in by brushing her face. ?However, in her first year in the army, she was able to take time off during the Chinese New Year, which was indeed a bit unexpected. Chang Jiayao stuck her head out and looked at her brother standing at the door: Our unit...the crews are over-provisioned, and as you know the problem in Figure 154, the frequency of missions is not high, so it is easier to apply for leave than other units. ?Chang Haonan thought about it carefully, and it was indeed true. As a passenger aircraft, the Figure 154 is notorious for its ease of maintenance from a 21st century perspective. Especially after being converted into a reconnaissance aircraft, the situation is even worse. ??Although the Air Force ground staff can ensure flight safety through maintenance methods regardless of man-hours or costs, the dispatch rate... There is really nothing we can do. Fortunately, for a strategic reconnaissance aircraft, it is a bit excessive to say that it will last for three years after opening, but it will definitely be fine for three months. The low take-off frequency is not unacceptable. Where are your parents? ?Chang Haonan had already changed into slippers and came to the living room. I went out for a walk and said I was feeling a little suffocated at home. Chang Jiayao was reading a magazine at this time and answered without raising her head. "oh" ?Chang Haonan just asked casually, and then prepared to go upstairs. Suddenly, Chang Jiayao''s turning of pages paused slightly. "etc" She stopped Chang Haonan: Brother, when you first walked in, it seemed like you had a friend tomorrow The latter also stopped: I have a friend who cannot return home because of the snowstorm, so he will come to our house tomorrow to celebrate the New Year. ?There is absolutely no need to hide this kind of thing from Chang Jiayao. I can''t hide it anymore. "friend" Chang Jiayaos eyes suddenly lit up: Male or female? ?Last time, Chang Haonan caught her and questioned her about the matter with a certain male classmate. This time, she found an opportunity. Female. Chang Haonan replied very simply: My senior sister, of course she is now a colleague. "Well" ?Chang Jiayao lost the interest to continue teasing ?This kind of thing is fun just to see the other person look embarrassed. ?Now that Chang Haonan is so frank, its boring... Is thatmy future sister-in-law? Her attention returned to the magazine. This I can only say its possible. Whether its a project or a relationship, Chang Haonan doesnt have the habit of popping champagne halfway. Chang Jiayao wanted to ask something else, but at this time, the sound of the doorbell ringing came from outside. Obviously, Chang Yuanchao and Zhou Li are back. In an instant, the expression on Chang Jiayao''s face became excited again. (End of this chapter) Chapter 976 Meeting parents unexpectedly Chapter 976: Unexpected meeting with parents As soon as Chang Yuanchao and Zhou Li entered the door, they didn''t even have time to change their shoes, when they heard Chang Jiayao shouting at the top of her lungs: Dad, Mom, my brother said he would bring a girlfriend home for the New Year tomorrow! For a moment, the whole house and even the whole world seemed to be quiet. Chang Haonan showed an expression that he couldn''t bear to look at. He took three steps at a time and came to Chang Jiayao''s side. He reached out and pushed his sister back to the sofa. As for the old couple who just entered the house... For a moment, I even forgot to close the door, letting the cold wind keep pouring in from outside. After a while, Chang Yuanchao recovered from the initial shock: What did you say? This is asking Chang Jiayao. Comrade Lao Chang has just retired from the front line two years ago, and he is still sharp and healthy. It is obviously impossible that he really didn''t hear. Its just that I dont quite believe it. ?However, before Chang Jiayao could speak again, Zhou Li next to her looked at Chang Haonan more directly: Xiaonan, your...girlfriend? Ahem ?Chang Haonan is a little helpless about his sisters Spring and Autumn style of writing: Not a girlfriend yet, but a woman, a friend. ?This answer Although it is negative on the surface. The inner meaning is also negative. But for the questioner, the effect is almost the same as affirmation. ?Hence, Zhou Li, who had been shocked just now, instantly smiled and said: It doesnt matter, it doesnt matter, as long as its a woman. Im not my girlfriend now, maybe I will be in the future While talking, the two of them had already changed their clothes and shoes as quickly as possible. Chang Yuanchao didnt seem as excited as Zhou Li on the surface, but he was quite curious: Tell me, where does this girl live from? What is her job now? How did you two meet? Is it because of work that you come to our house to celebrate the New Year, or because its snowing so much that you cant go back? ?Even though Chang Haonan was used to big scenes, he was bombarded with a series of questions and was a little confused. I am a colleague, and before that, I was my senior sister... Because its snowing and flights cant take off, Im thinking of calling her over to celebrate the New Year together Zhou Li, who arrived shortly afterwards, did not give him a chance to buffer: Then do you know what she likes to eat? "have no idea." ?Chang Haonan shook his head. For southerners, do the New Year customs differ from ours? For people from the Northeast, everything south of Shanhaiguan is "South". Uh I dont know either Continue to shake your head. Alas...Why dont you, a child, know nothing about everything and dont ask in advance... ?Zhou Li sighed with a look of hatred on her face: "You should have told us earlier so that we could prepare earlier... It''s already 29th afternoon, and it''s too late to prepare anything..." Not to mention Chang Haonan who was in the middle of the two, even Chang Jiayao who was watching the excitement broke into a cold sweat. As for the former, I am even more confused: Mom I just cant get home in time. Im here to celebrate New Years Eve, and I dont really want to come Besides, I havent seen any difference in what she eats. Besides, she has been in the capital for more than ten years, so she should be considered a native of the capital. Just prepare as you normally would during the Chinese New Year. Just prepare more dumpling fillings and noodles... Hearing what he said, Zhou Li raised her eyebrows: How about that? This is the first time for a girl to come here, so she cant let others think that we dont want to see her Speaking, he turned to Chang Yuanchao: Hey, old man. Do you have any red envelope? "No...she is two years older than me, and she is already working..." ?Chang Haonan weakly put forward his opinion. Its not that I feel bad about the money. But this form looks a bit strange... Its always like giving new years money to a child. Thats different ?Zhou Li waved her hand without thinking: "Anyway, just listen to me. Mom has experience in this kind of thing..." In the end, even Chang Jiayao came over to join in the fun: Brother, is my sister-in-law pretty? Chang Haonan, who was almost numb, glanced at Chang Jiayao with a resentful expression, and replied angrily: Wont you find out when I see you tomorrow? However, as soon as he finished speaking, the latter seemed to have heard something terrible, and he patted the pillow in his arms with joy: Just tell me, my brother has no objection to the title sister-in-law ??? Chang Haonan finally couldn''t bear it anymore and reached out to knock Chang Jiayao on the head... ??Had she not omitted that crucial word, perhaps the situation would not have developed to this extent. Obviously, although Zhou Li has never met Yao Mengna, she is already considering her treatment as a prospective daughter-in-law. ?Of course, Chang Haonan himself does have this idea... ?However, I still feel that the progress is a bit too fast... In short, time came to the next day very quickly. Early in the morning, Chang Haonan was picked up from the bed by his two elders. Then, while preparing various New Year utensils, I was asked questions like "When will your friend arrive" every half hour. In the end, Chang Haonan, who took the trouble, chose to compromise and asked a driver to pick up Yao Mengna in advance. Even at the beginning of this century, the housing prices in Beijing were so sad that those who heard about them were saddened and those who heard about them shed tears. ?Yao Mengna, who has just graduated and has only worked for two years, naturally lives in a single dormitory provided by Torch Laboratory. ?So the situation is similar to yesterday, all the way to the outer ring, unobstructed. Even when Zhou Li started preparing lunch, she heard the doorbell ringing outside. Hurry, you have to open the door. ?Chang Yuanchao pointed to the entrance and gave his son a gentle push on the back. In fact, since Chang Haonan took the initiative to invite Yao Mengna to his home, he was not nervous at all. In the end, I was stunned because I was tormented by the old couple, and I felt a little unsure. ?However, everyone else has arrived at the door now, and it is too late to say anything. So, he took a deep breath, then turned around and walked resolutely to the door. At the same time, Yao Mengna was standing outside the door with several large boxes of gifts in her hands, and she was beating a drum in her heart. As a party that seems passive but is actually active, she now knows it very well. ??If you continue to count on Chang Haonan to make the first move, then it is estimated that the two of them will have to live alone together. So, you must muster up the courage to do something first. And today, this occasion with only two people, is a good time to get closer... While she was on the road just now, she had already started to build herself up mentally. ?I thought there was no problem, but now that things are coming, I am panicking again "When he comes to open the door later, should I be more enthusiastic..." But will it scare people if you are too enthusiastic... "How should I call him? Professor Chang seems a bit too unfamiliar..." Call me by name directly? It seems like the span is a bit too big Are you calling me junior brother like before... Also, what should I say in the first sentence I asked my best friend yesterday and she seemed to say that even men cant stand up to girls acting coquettishly, but what should I do if Im not very good at this In the cold wind, Yao Mengna was so anxious that she was almost sweating. At this moment, I only heard a "pop" sound. The door is open. Sister, please come in quickly. In non-work situations, Chang Haonan is still accustomed to using this more casual address. And this also helped Yao Mengna solve a big problem. Junior brother, happy New Year! ?After entering Chang Haonan''s house, it''s hard to say whether it was because of nervousness or shyness. In short, Yao Mengna''s mind was already a little hard to turn around. At the moment before opening the door, she was thinking about the advice she received from several little sisters last night Learn to act coquettishly. Don''t be too dominant. Find ways to stimulate the other person''s desire for protection. Logically speaking, none of these three items can be wrong. ?But under the chaos, Yao Mengna subconsciously mixed all the above contents. And the external performance is... When Chang Haonan closed the door and was about to get her slippers. I said this in an extremely arrogant tone: Junior brother...its so cold outside... As soon as he said this sentence, not to mention Chang Haonan who almost fell to the ground, even Yao Mengna closed her eyes. Oh my god...how could I make such a strange sound...its so shameful... However. The more shameful thing is yet to come. Brother, is this the colleague you said was coming to your home for the New Year? Just as Yao Mengna was about to open her eyes, a crisp female voice suddenly sounded in her ears. ?) Before she could figure out what was going on, a second, more mature female voice came from a little further away: Xiaonan, let the guests in quickly, Im holding your hand here ?) ?Yao Mengna began to realize that something seemed to have gone wrong. Following that, there was a rich male voice It is not Chang Haonans: Dont be too restrained, just treat yourself as your own home... ?) Finally, it was Chang Haonans voice: Senior sister, you can just come over here, what else can you take...its too foreign... ?For a moment, Yao Mengna would rather her eyes could be closed forever Obviously, she got the situation wrong. Chang Haonan is not alone in his family. On the contrary, families spend the Spring Festival together. I met my parents out of nowhere today... And whats even more terrible is. ??The words she just felt ashamed to hear must have been heard by everyone in the room... (End of this chapter) Chapter 977 You two are quite good at playing. Chapter 977 You two are quite good at playing... ?At the moment when she finally decided to open her eyes and face reality, Yao Mengna had only two words in her mind: The pills are spicy! ??If other parents and elders hear your behavior just now, will they be regarded as an improper person? ??Moreover, the expected world of two people suddenly turned into a three-chamber trial, but I was not prepared at all... How to explain the relationship with Chang Haonan? Ordinary friends? How can ordinary friends go to other peoples homes to celebrate the New Year? ?? boyfriend and girlfriend? But it seems that the relationship has not been confirmed yet For a time, countless thoughts poured into Yao Mengna''s consciousness, confusing her already chaotic brain like a ball of paste... ?However, when she really opened her eyes, what she faced was not the embarrassing scene she had imagined. In fact, although Yao Mengna felt as if a century had passed, only about ten seconds had passed since she entered the door. ??Moreover, because she said that sentence in a very low voice and very fast. Therefore, except for Chang Haonan, the other three people actually didn''t hear it at all. When Chang Haonan heard these words, he just thought that the other party really felt cold. After all, Yao Mengna only wore a turtleneck sweater and a long thin windbreaker in order to look good today. The heating in the entrance area was not turned on. Once we entered the house, it quickly became warm. As Chang Haonan spoke, he helped the senior sister take off the outermost windbreaker and hang it aside: There is cold air on the coat, and it will become even colder after entering the house. At this time, Zhou Li also finished washing her hands and walked over from the kitchen door. ??Although he is dressed at home, he still has a sense of calmness and self-respect because he has been a teacher all year round. Yao Mengna, who was already as frightened as a frightened deer, felt nervous again. I want to say hello, but I cant even speak clearly when I open my mouth. ?Even almost bit my tongue. Fortunately, Chang Haonan quickly came to the rescue: This is the senior sister I mentioned to you before, Yao Mengna, who is now my colleague. Then, he looked at Yao Mengna who was still a little shivering next to him, stretched out his hand and said: This is my mother and my father. Thats my sister on the sofa. You should have heard me say her name is Chang Jiayao. ?Until this moment, Yao Mengna finally felt a little more at ease: Happy New Year to uncle and aunt "Jia Yao...it doesn''t matter if I call you that...Happy New Year." This time, Chang Yuanchao responded quickly and was the first to reply: No trouble, no trouble, stop standing now and sit down. As he spoke, he looked at Chang Jiayao on the sofa: Jia Yao, please sit down on the small sofa quickly and make room for me. Facing this excessive enthusiasm, Yao Mengna felt that she could not cope with it: Im sorry to bother you during the Chinese New Year Look at what you are saying...its Chinese New Year. Its more lively when there are more people. Its just a pain for you, kid, because you cant see your family... Zhou Li stepped forward with enthusiasm, and at the same time took out the red envelope she had prepared long ago from the front pocket of her apron ?Even yesterday I found someone to buy it temporarily: Xiao Nan just told us yesterday that you were coming, and Auntie didnt have time to prepare. Since its the Chinese New Year, Ill give you a red envelope. Hearing this, Yao Mengna, who had just sat on the sofa, stood up quickly and waved her hands quickly: No, no, no, I... Before she could say any more words of rejection, the red envelope was directly stuffed into Zhou Li''s hand. Chang Haonan next to him also took advantage of the situation to help: Just take it. The paper used to wrap this red envelope was specially found by my mother when she heard that you were coming over. If you dont accept it, my mother will have to criticize me later After being bombarded with such words, Yao Mengna accepted the red envelope in a daze, half voluntarily and half forced: Thenthank you, uncle and aunt After saying this, he probably felt that it was not good for him to sit all the time because others were so enthusiastic, so he asked tentatively: "Auntie, how about...I...let me help you?" Speaking, he rolled up his sleeves and prepared to follow Zhou Li into the kitchen. ??As a result, Zhou Li naturally stretched out her spoon and blocked the outside: Its enough to have Xiaonans father here to help me. The kitchen will become chaotic if there are too many people. Youd better go and chat with Xiao Nan and Jia Yao. You are both young people and have many topics in common... After finishing speaking, he stuck his head out from the kitchen door and shouted at Chang Yuanchao, who was still in the living room: Come and help! ??The latter shrunk his shoulders, quickly turned around and walked quickly to the kitchen, leaving the living room to the three young people. My dad and my mom have this kind of personality, they are more hospitable ??Chang Haonan couldn''t just say that my parents have considered you as their prospective daughter-in-law, so he had to explain what just happened by being hospitable. ?However, although it was difficult for him to say it directly, it was the turn of Chang Jiayao next to him to play a role: Sister Meng Na, how long have you and my brother known each other? ?Although it is unreliable to behave weirdly in normal times, that is just in front of your family. ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? At this critical moment, she is still very useful. ??If you call someone sister-in-law as soon as you come up, it will be a bit too quick. You have to lay the groundwork no matter what. In fact, until now, Yao Mengna was still a little dizzy. Sit down on the sofa with Chang Haonan, and then start thinking about what happened in the past less than ten minutes... First of all, I want to spend the Spring Festival with my junior brother. When I came in, I found that other peoples families were there. ?Then he accepted the red envelope inexplicably and sat next to his junior brother naturally. The most terrible thing is that he didn''t feel anything wrong in the middle... etc Before entering the door, I had thought that I was the one who took the initiative, but now that I think about it, it seems completely... However, just when Yao Mengna was about to straighten out the relationship, she heard Chang Jiayao''s curious question. "Hmm...probably, it should be almost six years..." The former replied. At the same time, I had to stop my thoughts. Six yearsnow its 2002 Chang Jiayao thought briefly: That was 1996 "ah?" ?Her eyes widened, pretending to be shocked: You have known each other since my brother was a junior in college? ?Although Yao Mengna had long since accepted the fact that Chang Haonan was younger than herself, seeing Chang Jiayao like this, she felt a sense of guilt for no reason as "the immeasurable senior who deceived the innocent junior." Actually, strictly speaking, it was my senior year in college. Seeing that Yao Mengna couldn''t cope with her younger sister, Chang Haonan quickly took over the conversation and at the same time gave the former a pillow so that she could have a place to bury her head: I had just joined Teacher Dus research group at that time, and my senior sister was in her second year of Ph.D. "Wow" ?Chang Jiayao nodded slightly exaggeratedly. In fact, originally, she wanted to express her admiration for this matter. But Yao Mengna next to her sounded completely different. One is a senior and the other is a sophomore. To most people, it sounds like the difference is five or six years old... How can this be done? She is already a little concerned about being three years older than Chang Haonan. ??If you are misunderstood by others as an old woman in her thirties who wants to eat young grass like an old cow... Clarification, must be clarified! So, she quickly raised her head from the pillow: I...I didnt get a masters degree. My teacher...just like your brother, I directly studied for a doctorate... In fact, the subtext of her words is that she is not that old. ?But Chang Jiayao didn''t think about age just now, and she can''t understand the meaning now. It just means that you are too awesome. Yao Mengna was so anxious that she almost burst into tears. Just at this time, Chang Haonan talked about some things from that year, and she suddenly recalled that when she first got to know each other, she said in the research group that she had met a senior brother... ??As a result, he was exposed on the spot by Fang Zhen, the eldest brother in the research team at the time... His face turned redder instantly. Although Chang Jiayao didn''t know why Yao Mengna suddenly became like this, she also knew that she seemed unsuitable to stay as a light bulb, so she quickly found a reason to call her colleagues to wish her New Year''s greetings, and quickly ran back upstairs. For a time, Chang Haonan and Yao Mengna were the only two people left in the huge living room. ??The former turned his head and looked at the usually cool and cold senior sister who was now blushing to the point of dripping with tears. Suddenly an adjective that had never been used on the other party flashed through his mind Why do you think its a little cute Senior sister? He called out tentatively: Jia Yao has gone upstairs. Hearing these words, Yao Mengna raised her head a little. It was discovered that Chang Jiayao was indeed missing. This is a little bit of relief. After the surroundings became quiet, her brain gradually resumed operation. Then, he began to try to continue to review everything that had just happened. ?So she quickly recalled her various behaviors since entering the door... ?Yao Mengna even wanted to knock herself out with a stick. ?Its so embarrassing Its all your fault...Why didnt you tell me in advance that there were other people at home? With shame and anger, she picked up the pillow in her arms and patted Chang Haonan''s back gently. You didnt ask either? The latter replied naturally. Immediately afterwards, before Yao Mengna could react, he suddenly changed the subject: Wait a minuteIll hear what you mean Chang Haonan showed an expression of sudden realization: Senior sister, you didnt think you agreed to come celebrate the New Year with me because you thought I was the only one at home, right? "I" ?Yao Mengna was speechless for a moment. ?She wanted to say what if it wasn''t the case? But its a bit hard to say. I had no choice but to pick up the pillow again and repeat the action just now. ?The strength was almost like flirting. Chang Haonan didn''t feel anything at all, so he naturally didn''t bother to hide, letting Yao Mengna vent her little emotions. However, what no one expected was. At this juncture. The kitchen door suddenly opened... (End of this chapter) Chapter 978 Professor Harold being targeted Chapter 978 Professor Harold was targeted Time goes back to about ten minutes ago. After returning to the kitchen, Zhou Li has been busy cooking, so naturally she doesn''t know what is going on outside. ?Originally, according to her expectation, it had only been about ten minutes, and the three young people should have just become familiar with each other. On the other hand, Chang Yuanchao couldn''t help much because he couldn''t cook, so he wandered back and forth in the kitchen, almost scratching his head and ears: Im talking about the childs mother, how far do you think Xiaonan and this girl... have developed? While speaking, he also moved close to the door, as if he was ready to use his professional skills to open the crack in the door. As a result, before he could touch the door handle, his arm was hit hard with a chopstick: What are you doing? If you have nothing to do, just pour me a pot of oil and heat it up for frying the meatballs later Chang Yuanchao, who was scolded, quickly retracted his hand angrily: I also want to see the situation Even though he said this, he still walked to the stove honestly, unscrewed the lid of the big bucket of peanut oil, and got ready to pour it into the pot. How much further can it develop? Zhou Li said as she opened the gauze covering the bamboo drawer and put the cold meatballs that had been steamed last night into a basin, ready to be fried in a pan later: Look at the way that girl looked when she first walked in, she must be interested in our Xiaonan, but I guess... neither of them must have made it clear. Oh...take your time, no matter what you say now, there is always something you want to think about... Is that so ?Chang Yuanchao turned on the gas stove with a bang, and it was clear from his tone that he did not agree with Zhou Li''s judgment: I think that although the two of them seem to have nothing to do with each other on the surface, they actually have a very good understanding. Maybe it was nothing before, but as long as the window paper is broken, the progress should be very fast..." Hearing this judgment, Zhou Li curled her lips: "Come on, your son is just like you back then... If I hadn''t taken the initiative to go to the hospital when you were injured and couldn''t get up from bed, I don''t know when I would be able to get married..." Ahem ? Seeing that his wife was going to dig out the old sesame seeds and rotten millet things again, Chang Yuanchao hurriedly coughed twice: Actually... I just sprained my foot, so I lay in bed for two days..." "Um?" Zhou Li stopped moving her hands: "But your instructor told me..." Thats why I asked him to scare you... Chang Yuanchao used a chopstick to test the oil temperature: Who knew he wouldnt even make up a lie? He just said that I might not be able to get out of bed for the rest of my life But the effect was really good. He came to our place the next day and said he would spend the rest of his life..." ?Before she finished speaking, she was kicked hard by Zhou Li: How old are you? Still remember those things back then Ive already seen that theres something wrong with you guys, everyone is holding back their bad intentions... ?Although she said this, Zhou Li''s thoughts were obviously a little shaken. After thinking about it again and again, she saw that the oil temperature had not yet come up, so she temporarily put down the things in her hands and walked out the door. Hey, didnt you just let me out? Chang Yuanchao was obviously dissatisfied with this behavior of only allowing state officials to set fires but not allowing people to light lamps. Im going out to get some seasoning ?Zhou Li directly gave a high-sounding reason. After saying that, he quietly opened the door a crack. Then I saw Yao Mengna and Chang Haonan sitting next to each other on the sofa. Chang Jiayao was not seen. ?Yao Mengna was holding a pillow and patting Chang Haonan with the same force as tickling. Almost subconsciously, Zhou Li didn''t care about the seasoning and quickly closed the door. Old man...you may be right... As for the two people in the living room ?From Chang Haonan''s perspective, he couldn''t actually see the situation in the kitchen. But Yao Mengna saw it clearly ?Just now, the kitchen door opened for a moment. And there seemed to be a figure flashing inside... That is to say. All were seen "What''s wrong?" ?Although Chang Haonan didn''t know what happened yet, he could feel the change in Yao Mengna''s mood next to him, so he turned his head and asked curiously. "It''s over, it''s over... we''ve all been seen..." The latter had a lifeless expression on his face. He changed his behavior from just now and sat upright on the sofa like a primary school student. What is seen We just just now Yao Mengna didnt know how to describe it, so she could only point to the pillow in her hand: When I was here, I saw my aunt come out of the kitchen for a moment, and then go back right away... O Looking at the panicked senior sister, Chang Haonan couldn''t help laughing. Youre still laughing Nolets make it clear first. ?Chang Haonan reluctantly suppressed his smile and pretended to be serious: It was your unilateral action just now, I didnt do anything Its strange to say that I havent felt it in the past few years, but today I suddenly discovered that it seems quite interesting to tease this senior who is usually very cold and strong... "you" ?Yao Mengna is popular again. But having learned from the past, she did not dare to make any big moves again. Logically speaking, if she went upstairs to find Chang Jiayao, who is of the same sex, she might feel better. But the two of them just met for the first time today. They can only say that they know each other''s names, but in fact they are not familiar with each other at all... ??But if she continues to sit here, Chang Haonan''s half-smiling eyes make Yao Mengna clearly feel that the temperature on her face is rising... Forget it, Ill go see if theres anything aunt can do to help Finally, she was defeated and ran to the kitchen... In the following time, due to being frightened several times in a short period of time, Yao Mengna behaved well and did not dare to do anything out of the ordinary until the New Year''s Eve dinner. Only when I was making dumplings with Chang Haonan at night, I secretly kicked Chang Haonan under the coffee table. Chang Haonans family also tacitly agreed not to mention what happened during the day. ? No matter what, the relationship between the two people has been invisibly brought closer during this day. ?And this New Years Eve passed in such a quiet and peaceful atmosphere. However, for the two parties involved, especially Yao Mengna, who was celebrating the New Year at someone elses house for the first time, this night was destined to be tossing and turning and difficult to sleep... At the same time, across the ocean. In 2002, Chinese culture did not have a particularly strong influence abroad. Basically, except for Chinese-inhabited areas such as Chinatown, not many people pay attention to this festival. ?However, even though it is not the Spring Festival, Professor Harold Huang has not been able to sleep well for several days in a row. As for the reason Things that can keep a scholar awake are most likely to be nothing other than papers. Its just that this time its not because of the rejection In the field of numerical computing, even theoretical research has extremely high requirements on computing resources. Harold is currently in a relatively marginalized state, so since he published the paper in JCAS last year, the data for the next article has not yet been collected. In fact, the source of his upset was last years paper. The United States at the beginning of the 21st century is similar to China 20 years later, and the paper volume is booming. Although Harold is already a full professor, he has just joined Ohio State University a few years ago. Many things still have to be achieved through performance evaluation rather than mixed qualifications. However, just after he submitted his thesis last year to the school as a result, he was quickly called back. Faced with this situation, Harold was naturally confused. Before submitting, he also checked it specifically. Even though it has only been published for less than a year, JCAS has been included in the SCI database, and the impact factor has reached 4.71. ?Of course, this number accounts to a large extent for the cost of several biomolecular papers. ??But in any case, in this era where the impact factor has not yet been inflated, it is definitely very dazzling for a new journal to achieve such results. At least it should not be excluded from effective results. ?So, he directly took the relevant information and went to investigate. The answer was - The school believes that JCAS was included in SCI and had an impact factor in early February 2002, so papers published there before that cannot be counted as effective results... Harold almost laughed in anger. ??He has spent half his life in academia, and although he has spent most of his time in companies, he has never heard of such an outrageous calculation method. Obviously, it can only be explained as being targeted... (End of this chapter) Chapter 979 A timely invitation Chapter 979: A timely invitation ?Although I figured out the ins and outs of the matter, it had no direct effect on improving Harold''s current situation. Unless he changes his research direction. ?However, on the one hand, Harold was never willing to compromise due to academic strife. On the other hand, he has spent too many sunk costs on the research of compact high-precision formats in the past few years, and has already made some plans. ??If you change your research direction at this time, it will indeed be a loss. But if it continues like this, that''s not an option. ?Originally, Harold had already contacted a material manufacturing company and was preparing to make several display boards so that he could attend an industry report meeting in the energy and power field. As a result, we were stuck on the most basic qualifications to participate in the conference. ?Of course, you can also spend some money to buy a ticket to attend this kind of meeting. But if you take this route to attend the meeting, you wont even be able to enter the infield. You can only try your luck in the outermost hall. ??He himself can choose to be a salted fish and it doesn''t matter, but several students in the research group still need the opportunity to show their faces. ?This is also what Harold is most worried about now. ??If the first batch of students he teaches cannot succeed, then his future reputation in the education world may not be guaranteed. Dong dong dong Dong dong dong Matthew Sane knocked on the door several times in succession, but did not see Harold raise his head from behind the computer, so he had to walk into the office on his own: ProfessorProfessor? After being called twice in a row, Harold finally recovered from his loss and anger. OhMatthew He gently rubbed the corners of his eyes that were a little sore due to lack of sleep in recent days: Whats the matter? Although Matthew is Harolds first disciple, he is only a graduate student after all and does not know what has happened recently. Just think its because my tutor has been busy doing scientific research recently and hasnt had a good rest. Professor, according to your request, I have summarized the main conclusions and core derivation process of our previous paper. Now even if they are all put on the same display board, it will not be too crowded..." ??He said, placing the laptop tucked under his arm in front of Harold, and then opened the lid. A long vertical bar design is displayed on the screen. ?Although there is a lot of content, it does not seem cluttered. ??Even put in a few pictures here and there. It obviously took a lot of effort. ?Seeing this scene, Harold''s first reaction was even stunned. Immediately afterwards, a wave of guilt swept through his heart. "well" Harold sighed deeply and wanted to tell the truth about the current situation, but for a moment he didn''t know how to speak. Could it be said directly, "Our meeting schedule may have to be cancelled, and all your preparations during this period will be in vain"? ?That''s a little too straightforward. But if you dont say it, this is not something that can be kept hidden forever... In fact, Harold''s research was able to be established as a project and received a start-up fund, which shows that at least someone is paying attention to this direction. But the problem is that now he does not have a platform to publicize the results - JCAS is, after all, just a very young journal from China. And its still a hodgepodge. Anyone with a discerning eye can see that it is purely for academia. The business community rarely reads this type of journal. Industry-related conferences are different. ?Like the energy and power conference he wanted to attend, in addition to universities, the organizers were also well-known companies such as General Electric, Westinghouse, and Honeywell. If you show your results on it, you will have a high probability of being listed among these companies. This is a good opportunity for him and the entire research team. But the greater the hope, the greater the disappointment. Harold even considered whether he should spend his own money to buy an admission opportunity and take the students to see the world. ?Furthermore, the outfield is also a serious meeting venue after all. Maybe some financial owner has taken a liking to it... Matthew, who was standing opposite, saw Harold staring directly at the computer without speaking, and he couldn''t help but feel a little worried: Professor, this version of the plan...do you think there is anything that needs to be modified? The latter was so confused that he couldn''t calm down and read the content carefully. In addition, his energy was a little lost, so he nodded almost mechanically: Thats enough. The format of the exhibition board is to take into account that a large number of viewers are just passing by, so it must be able to use simple elements such as pictures or keywords to attract attention. As long as you can get people to stop here, thats half the battle Obviously, whether intentionally or unintentionally, Harold has begun to try to lower Matthew''s psychological expectations. lest the gap be too big when the time comes. And the effect of these words was immediate. Matthews eyes that had just brightened up suddenly dimmed a lot: Doesnt that mean the effect will be very poor? Harold hesitated for a moment, then gave a noncommittal answer: For a meeting like this, the most effective thing is to go directly to the stage to give a report... But the number of places for this kind of opportunity is limited, and you basically have to be invited... In fact, as early as the beginning of last year, the American Institute of Aeronautics and Astronautics asked him through private channels whether he would be interested in giving a report at the annual meeting in December. But at the last moment before the formal invitations were sent out, the theme of the entire annual meeting changed. And the report naturally came to nothing... Harold realized that he seemed to be thinking of a distant place again. He told himself in his heart that for the current plan, recalling the past was of no use. ?So he adjusted his mood and continued: However, as long as your research results are effective enough, even if you set up an exhibition board in a crowded outdoor venue, there is always a chance of being noticed... ? Harold said as he moved his office chair back behind his monitor and habitually opened the browser to read today''s email. Seeing this, Matthew also put on the computer, regained his energy, turned around and prepared to leave the office. but. At this time. Harold, who had just opened his mailbox, suddenly found an email from the official mailbox of Torch Group at the top of his inbox list. As a researcher in the field of numerical computing, it is impossible for him not to have heard of this Chinese company. ?In terms of comprehensive performance, the calculation tool TORCH Multiphysics developed by it is still far ahead. Only a few competing products such as COMSOL can challenge in some subdivisions such as CFD. In fact, Harold was already a loyal user of TORCH Multiphysics before joining Ohio State University. ?Hence, he clicked on the email almost without thinking. Perhaps its a recommended advertisement for the new version? ?While the page was loading, Harold thought like this - ? He ??knew that just next month, Torch Group will release a new version 2.0 of the TORCH Multiphysics software. ?The other party is even planning to use this as an excuse to hold a conference on numerical algorithms and computing science. You should know that before this, although numerical calculation had been put into practical application in many engineering fields, it was rarely regarded as an independent discipline in itself. Hence, a conference with such a theme, especially if the main organizer is an industry leader like Torch Group, naturally attracts a lot of attention. ? Its just that the meeting time will overlap with the energy and power report, and China is too far away from Ohio, so Harold is just going to pay attention to the other partys communiqu and related conference papers afterwards. ?However, the email loaded much faster than Harold expected. In less than half a second, the content is already displayed on the screen. This is not an advertisement. It is a short invitation letter. Ask him if he is interested in going to China as a special guest on March 30th and 31st to participate in the Numerical Algorithm and Computational Science Conference hosted by Torch Group. If you are interested, you need to prepare an academic report of about 25-30 minutes in advance... ?Harolds bloodshot eyes flashed with confusion. At a certain moment, he even wondered if he had not had a good rest for too long and was hallucinating. But the English letters on the computer screen are extremely clear, not like an illusory scene in a dream... Special guest Academic report 25-30 minutes ?A few keywords made Harold dizzy. Matthew! ?He supported the table, closed his eyes and took several deep breaths in succession, while shouting to the door at the top of his lungs. ?At this time, Matthew had just left the office a few steps when he heard his name again, and there was a roar that almost scared the laptop away. ?He quickly returned to Harold''s office in three steps and two steps at a time: "professor?" Its an exhibition board...is there anything wrong with it? ??The latter waved his hand, and then motioned Matthew to sit on another chair next to him: Forget Fxxkings display board. Harold opened his eyes again, and the pain and confusion in his eyes had completely disappeared. What remains is only a firm gaze: Our chance has come. "Um?" Matthew still doesnt understand the situation. Lets work together to expand the content on the display board into an academic report. The content should be substantial enough (End of this chapter) Chapter 980 Be a company with dreams Chapter 980: Be a company with dreams ?Looking at Professor Harold who seemed to be suddenly excited, Matthew was still a little confused about the situation for a while. Actually, the latter has been vaguely aware that his boss''s mentality is a bit off these days. As a student, its not easy to directly ask what happened. ?Including a few minutes ago, when I first entered the office, the other person still looked distracted. As a result, less than 30 seconds after he turned around and left the office, Harold completely cleared away the gloom on his face. But professor Matthew said with a troubled expression: "This exhibition board... was something you asked me to compile from an academic report before?" Harold raised his head and recalled it quickly. I found out that this seems to be the case. After the report meeting failed at the end of last year, he approached Matthew and asked him to condense the report he had written into a display board in preparation for participating in the subsequent energy and power industry conference. I just didnt expect that due to the obstruction at the school level, even the latter matter was blown away... The teacher and student stared at each other for half a second, and the scene was a little awkward for a while. Ahem Harold coughed twice to cover up his embarrassment, and then assumed the posture of "everything is under my calculation": After all, that report was written half a year ago, and the content is already a bit out of date. Previously, I considered that the space for making an exhibition board was limited, so it was not easy to add anything to it, but this time the report time is 25-30 minutes, so we can definitely include some of the new discoveries we have made recently. ?At this time, Matthew also understood a little bit: So there is a higher-level academic conference that invited our research group? He also became energetic instantly After all, just now, Harold specifically emphasized that reporting on stage is the most effective. Facing this question, Harold was stunned for a moment. At this time, he was not aware of the source of this "special invitation" and its corresponding value. So I am a little worried that I will not be able to take my students with me. So, he turned his head and glanced at the computer screen. Because it was not a formal invitation letter, it was just asking about his wishes, so it did not specify any details. Fortunately, the official website address of the Numerical Algorithms and Computational Science Conference is attached. Harold quickly clicked in. Wellit doesnt clearly say whether I can take other people with me ? He ??touched his slightly bald head and looked at the meeting rules listed on the web page: Ill ask the organizer when I reply, if possible Harold had originally wanted to take you with him if I could. But mid-sentence, he suddenly saw another part of the content below Numerical calculation competition. Obviously, this meeting is actually more than just a meeting. ?There is even foreplay. ?At this time, Harold vaguely remembered that he had seen news related to it a few months ago. But there were only three people with master''s degrees and doctoral degrees under him, and one of them was a rookie in his first year of graduate school. In addition, the competition time conflicted with the conference he planned to attend, so he didn''t take it seriously. ?Looking back now, I almost picked up the sesame seeds and lost the watermelon. Matthew. Harold waved to the side, motioning for the other party to come closer: I think... you can sign up for this competition. Matthew moved closer to the monitor and took a closer look: But it says a group requires three people? Have all our research groups passed by? About this, Harold actually had an idea for a long time: It just says that the contestants must represent the same school. You can bring Garcia and find another friend. ? Lucas Garcia, Matthews junior student, is currently struggling with whether he should continue to study for a Ph.D. or work directly after graduating from a masters degree. From Harold''s perspective, he naturally hopes that the other party can stay and continue his studies. But as a mentor, he has to let the other person see some of his remaining thoughts. ?Now Harold''s limited resources are piled on Matthew''s head, so that the latter can barely finish the project without delay. And new projects are far away. ?In this case, people in the future may not dare to study for a Ph.D., at least they will not dare to study for a Ph.D. here. ?It is precisely for this reason that Harold is eager to fight for a turnaround. But it says that each institution can only have one representative team to participate in the finals...which means we need to compete with other opponents in the school first..." The many setbacks in the past two years since starting his Ph.D. program have made Matthew feel somewhat habitually unconfident. ?However, Harold saw this very clearly: Dont worry, Matthew. He put on a confident look: The website says that the broad scope of this years competition is computational fluid dynamics. In this regard, I dare not speak about the situation of other schools, but in our school, no one is better than our research group..." ?This is definitely not Harold''s nonsense. Unlike most professors who came from the lecturer line, he spent the first twenty years of his career in a semi-commercial research institute. It can even be said that if it were not for the exclusion due to differences in research directions, he would not have chosen to enter the university at all. This background led to Harold''s lack of strong connections in the academic circle, and it became one of the main shackles that restricted his further development over the years. But it also allowed him to accumulate a lot of specific project experience. As Harolds first disciple, Matthew naturally benefited a lot from it. Its just that due to the lack of a control group and the fact that the research group has had too few projects in recent years, the latter themselves dont know about it. ?However, if you dont know, you dont know. But looking at the determined expression on his mentor''s face, Matthew hesitated for a few seconds and nodded. Then contact people first and form a team. Harold clapped his thigh excitedly: I have compiled some typical CFD projects that I have done in the past, especially the CFD projects that were done with TORC Multiphysics after 1998. You can study more during this time..." Although it says that participating teams do not have instructors, it does not say that reference materials cannot be provided... ??Professor Harold was naturally not the only one to notice this numerical calculation competition. ?Even, many people move much faster than him. In fact, if Harold had not been so troubled by his school and colleagues who were not good at it, he would not have ignored the relevant news ?? Torch Group started promoting the Numerical Algorithms and Computational Science Conference as early as the end of 2001. As an "appetizer", although this competition cannot be said to be the top priority, it still occupies a quite important share. ?The first, second, and third place prizes plus various individual winning awards total a total of US$500,000, and the opportunity to get up close and personal with big names in the field of numerical computing. ? Even industry giants such as Dassault, Airbus, Pratt & Whitney, Siemens, and General Electric will send high-level representatives to attend the conference. ? ?If any contestant performs well in the competition, or is lucky enough to be directly spotted by a large company, it is basically equivalent to saving 10 years of detours. For the professors and researchers who participated in the conference, these companies are also the first-class super funders. As for the travel expenses, food and accommodation expenses that need to be borne by yourself, they are nothing to mention in comparison. What some participants are worried about is the venue itself. After all, in many propagandas, China is a chaotic, backward place comparable to black Africa. ?Of course, most people are relatively sensible. Even though they have no way of knowing the real situation in China, they are inevitably affected by some tendentious propaganda. But logically speaking, in a place where a high-tech enterprise like Torch Group can be born, poverty is put aside, at least it is unlikely to be chaotic. Therefore, all of a sudden, air tickets to China at the end of March suddenly became very popular... At the same time. In addition to schools and research institutions, there is another group of people who are also paying close attention to this conference. San Francisco, Stanford University. In the private reception room of Professor Anthony Jameson. These days, I have carefully studied the competition sponsored by Torch Group. Jameson was sitting next to a window sill holding a cup of strong coffee: In the competition requirements, there is no mention of restrictions on computing tools and methods. Perhaps... we can consider using this opportunity to expand the influence of COMSOL to the business world. On the sofa not far away from him, Klaus Hertz sat. He is the head of COMSOL USA Division. It is said to be the American branch, but it is actually responsible for liaising with Professor Jamesons research group. You mean, find a few teams that have a higher chance of winning prizes, sponsor them... or use other methods, and let them use our calculation tools to compete? ?Heltz was naturally not stupid to be able to sit in this position. He understood what Jameson meant almost instantly. Thats right. ?Jameson nodded: Although my personal relationships have allowed some companies to include COMSOL in their software supplier lists over the years, as far as I know, even after the latest software version 2.5 is released, the actual usage rate of our software is not very optimistic. " Many commercial users have the mentality of hedging their bets and buy the right to use all decent software on the market. However, in actual operation, they still rely on Torch Groups software, even in the CFD field where we actually have an advantage. Same thing..." "From the perspective of users, they will definitely be inclined to seek stability and will not randomly use projects to try and make mistakes. Therefore, it is meaningless for us to just stop at word-of-mouth promotion. We need an opportunity to prove to them that there are better products on the market than TORCH Multiphysics. Better choice! In fact, this is a fairly common phenomenon in the software field Facing opponents that have already occupied the mainstream market share, it will be difficult for latecomers to overcome the long-term usage habits, regardless of performance. Even if you rely on off-site means to occupy a part of the market, users often do one thing on the surface and another behind the scenes. ?For example, China also encountered the same problem in the process of promoting domestic operating systems. At the beginning, I installed dual systems on the computer. Later, when it was no longer allowed, I simply used my own computer to work. Later, the external interface of the office hardware was disabled, and it was barely managed. Its just that things have changed, and now its Europeans turn to have a headache. After hearing this, Herz nodded in agreement, but the expression on his face was still a little hesitant: But that is someone elses home field after all Jameson shrugged helplessly: "There is no way. Given the current situation of the entire industry, except for Torch Group, it is difficult for others...including us to have enough appeal." However, you dont have to worry too much. At this point, he paused briefly and drank all the coffee in the cup: I am a special guest of this conference and have the right to supervise the entire competition process. Although playing at home will definitely give you a certain advantage, after all, you are in front of your colleagues from all over the world, so they dont dare to overdo it..." (End of this chapter) Chapter 981 This is the technology we started with Chapter 981 This is the technology we started with Since Professor Jameson has said this, Hertz no longer dwells on the issue of fairness and starts thinking about specific solutions: I have seen the process of that competition before. Each school can only send one team to participate in the finals, so we must first consider how to pass the preliminary round... The former looked very relaxed and waved his hand to indicate that it was no problem: Although our software is not widely used in the business world, it has been rapidly promoted in schools and scientific research institutions in recent years. It is not difficult to find people who can use it skillfully. CFD is our area of ??strength. As long as we conduct some targeted training before the competition, we should be able to pass it easily. As he spoke, he slowly returned to the conference table: In addition, having preliminary competition restrictions is actually a good thing for us. The preliminary competition is held online, and there is no strict time limit, which means that participating teams have the opportunity to compare a variety of different calculation tools, and it is easy to discover the advantages of our COMSOL in CFD problems. I have also specifically confirmed that the 2.0 version of TORCMultiphysics will be officially released on the evening of the first day of the conference. Therefore, during the entire competition stage, only the existing version should be used, and it is impossible to surpass us in efficiency. ?This explanation is clear and logical, and it is indeed very convincing. And, judging from the feedback received so far and the testing situation, At least Hertz was completely convinced: In this case... our company can promise to bear all the entry fees for all contestants who use COMSOL software and participate in the finals. If they win, we will provide an equal amount of rewards in addition to the bonuses provided by the competition. ??As the person in charge of the North American region, Hertz has quite a lot of resources at his disposal. Sponsoring more than a dozen teams is not a problem for them at all. As for the subsequent bonus ??If COMSOL can win an award in a competition sponsored by a competitor, the publicity value of this event itself cannot be calculated in terms of money... I will contact a few old friends who work in the university and ask them to take the lead in forming a participating team. Jamesons fingers tapped lightly on the table, obviously in a good mood: In addition, considering that most graduate students may have less project experience, I also have some actual cases of using the finite volume method to solve CFD problems in the past, which can help them adapt in advance... In short, with various intentional and unintentional promotions, the influence of this Numerical Algorithms and Computational Science Conference has become increasingly high. So much so that after the New Year holiday, on the first day he returned to work, Song Jingming, who was in charge of the matter, hurriedly reported the situation to Chang Haonan. The expected number of participants has increased by 50% compared to the previous year? Chang Haonan looked at the statistical report in his hand and was a little confused about the situation for a while: Lao Song, our conference... still has some participation thresholds, and the review cannot be too relaxed..." Although his original purpose was to further enhance Torch Groups leadership position in the field of numerical computing, it is definitely not that the more participants, the better. On the premise of ensuring scale, it must also maintain sufficient competitiveness. At least the big guys attending the meeting must not feel embarrassed. Mr. Chang, the review threshold has never changed. ?Song Jingming quickly explained: Except for a few special guests, participants must have valid scientific research results related to their field, or a letter of recommendation issued by the company. The reason why so many people suddenly came out was mainly because the topic of the competition was determined to be computational fluid dynamics, which led to many companies and research institutions in the chemical industry becoming interested. They called us or wrote us to ask if they still wanted to participate. There is a need for nominal sponsorship. Although the list of sponsors cannot be updated, we cannot stop others from sending corporate representatives... After the news spread, many scholars and students in related majors submitted applications to participate in the conference or participate in the competition..." Chang Haonan suddenly understood. This is an expansion of the circle. The problem now is that although we dont have to pay for the food and accommodation of these participants, we still have to find a place to house them. The rooms in the several hotels we contacted before are already quite tight..." Song Jingming was halfway through speaking, and there was even a little sweat on his forehead Not bearing the cost of food and accommodation means not reimbursing money, but not really ignoring it at all. Food is not bad. In such a big capital, no one will go hungry. But Su is different. In China, you cant just find a hotel to receive foreigners. You must have foreign-related qualifications. ?This thing will basically be something you can apply for in 20 years, but it is still relatively rare now. Even in the capital. Especially when there are so many people. ?As a conference organizer, if you let participants sleep on the street, it would be huge news no matter where you put it. "Well, let me first contact the hotels affiliated with several brother units within the Science and Technology Commission system. If it is not enough, I will consider looking for support from the capital." Faced with this situation, Chang Haonans first thought was naturally internal digestion. Firstly, communication and coordination are convenient, and secondly, the good news does not flow to outsiders. After all, at the beginning of the 21st century, the average spending power of foreigners was still significantly higher than that of the general domestic population. Hearing Chang Haonan''s answer, Song Jingming finally breathed a sigh of relief: Okay, with your support, we feel confident. By the way, theres one more thing. ?Before the latter left, Chang Haonan suddenly stopped him: After you go back, ask Professor Liu to find two people from their business department who are familiar with the operation of COMSOL Multiphysics to report to me as soon as possible. Facing this request, Song Jingming''s eyes flashed with confusion. Fortunately, Chang Haonan quickly gave a further explanation: I was worried that all foreign teams would use our software to compete, so there would be no way to compare, so I found two other schools and asked them to use COMSOLs computing tools in the finals. "The problem is that our domestic numerical calculation-related courses basically use the textbook I compiled back then... I asked almost no one who has had in-depth contact with COMSOLM Multiphysics... Although the operating logic of this type of software is quite different, it is best to Give it special training, otherwise if you use it too unfamiliarly, it will be easy to reveal your secrets..." Due to the Spring Festival holiday in the middle, the whole of February seems to be divided into two halves. In short, I havent had any concrete feelings yet and its already the end of the month. For most Chinese people, it is generally not until after the Lantern Festival that they can gradually return to normal working conditions. But there are still some people who dont have such a long rest time. For example, Liu Hongbo. Just two days after the Spring Festival holiday, he took the wing design optimized by his team and flew to France with two assistants - After all, Falcon Z is a project that Dassault took the lead and was responsible for the overall design. The Aerodynamics Group only assumed part of the tasks. However, the proportion of this part seems to be a bit too high... Due to the time difference, Liu Hongbo and the other three boarded the plane early in the morning, and when they got off the plane, it was noon local time. After much thought, he decided to hand over the work as soon as possible. Manager, why dont we go back to the hotel to clean up first? ?After sitting in the car arranged by Dassault, an assistant looked at Liu Hongbo''s messy hair and haggard face, and asked worriedly. Long nights and many dreams. Liu Hongbo shook his head, and then patted the locked metal password box next to his hand: You may not know this when you go abroad for the first time, but thieves are particularly rampant in Paris. One more day your things stay in our hands means one more day of trouble..." Just one sentence gave the other two people in the car a completely new concept of this place... Fortunately, the journey to Dassault Group was relatively calm. After a simple reception meal, the three of them met Dr. Charles Edelsteiner, who was in charge of the Falcon Z project. According to convention, data is stored on hard drives, not paper copies. Hence, the handover process was placed directly in the computer room of the design department. To be honest, I didnt expect that, apart from the maturely designed fuselage, the earliest plan for the entire aircraft was this ultra-high-speed wing ?While waiting for the data to be imported, Ed Stanner said to Liu Hongbo with some emotion. ?Originally, his lowest expectation was to get the wing plan before the end of the third quarter, which would barely make it in time for the Falcon Z''s first flight in 2003. Whoever thought it would be six months ahead of schedule. This wave has almost directly dispelled all concerns about project delays Even in the worst case scenario, the SeA650 engine cannot be installed as planned, and other models can be temporarily used for the first flight without affecting the progress of the entire project. Liu Hongbo on the side laughed out loud when he heard this. ??Of course I''m not making fun of you. But he remembered what happened many years ago when he first met Chang Haonan. After the latter entered the research group of Academician Du Yishan and was successfully promoted from a student to his junior disciple, the first project he took on was to calculate the flutter critical speed of the MA60 wing. Doctor, you may not know much about the history of our group. Liu Hongbo shook his head and temporarily put the memories behind him: Actually, the first time we entered the field of civil aircraft design was based on first-hand airfoil optimization technology. This is a matter of housekeeping... (End of this chapter) Chapter 982 So it turns out that Mr. Chang is so happy every day? Chapter 982: So Mr. Chang is so happy every day? ?Other than Liu Hongbo and Ed Steiner, other people in the computer room naturally took advantage of this time to communicate quietly. In French, of course. I remember that the wing design was entrusted to the Chinese people at the end of October last year, and it has only been about four months in total... ??A relatively young technician looked at the slowly moving progress bar on the computer screen and said to several colleagues around him: At that time, the starting point for the optimization of our critical speed was around Mach number 0.8. In such a short period of time... could it really be optimized to the 0.95 level required by the design? ?The few people were standing in a relatively remote place, and they also saw that the Chinese man seemed not to understand French, so they were not worried about being overheard. If we only talk about critical speed, I wouldnt be too surprised The next person to speak was another middle-aged female engineer sitting on a chair: In fact, there are many mature technical means that can increase the critical speed to a level close to Mach 1.0, but that is only the most superficial problem in wing design... In fact, since the concept of supercritical wings was first proposed in the late 1960s, the lift coefficient of straight wings at medium and high speeds has not been a problem. This technology can greatly delay the point where the drag divergence occurs on the upper and lower surfaces of the wing, and increase the relative thickness of the wing by 30% to 50% at the same drag divergence Mach number, allowing aircraft designers to design designs without changing the total weight. A wing with a larger aspect ratio. That is, thinner. As early as the early 1970s, Airbus had already adopted a supercritical airfoil when designing the A300. By the beginning of the 21st century, in the field of pure aerodynamic lift design, it was indeed no longer a new technology. ?Hence, everyone nodded. "but" The female engineer changed the subject: My main concern is that these Chinese people only have experience in numerical calculations, but lack the accumulation of wind tunnel or test flight data. On the surface, everything looks normal, but once they actually enter the testing stage, troubles will come one after another... Obviously, not everyone initially agreed with leaving the wing design task to China. If you are referring to the wing flutter problem, then I dont think so..." ??A bald old man who had just been staring at the computer screen also turned around at this time: Probably... uh... it should be about 6 years ago. At that time, the Chinese people and Finmeccanica Group designed a regional passenger aircraft. Of course, it was a joint design, but there was basically no Italian participation in the hardware part. In my impression, the airfoil design of that aircraft is quite good, and it is very competitive among aircraft of the same level. You have always worked at the headquarters, so you may not have much impression, but I have flown it once before when I went to Egypt on a business trip. For a propeller aircraft, the noise and vibration levels are first-class..." It is not difficult to tell from what he said that he has a high opinion of the MA60. I do know that model, it seems to be called MA60? The female engineer just replied: I heard that it has indeed had a big impact on the market of ATR72 and Dash8. However, even at the maximum speed of a turboprop passenger aircraft, it is impossible to exceed Mach 0.5. The flutter problem in that speed range is completely different from that in the transonic speed range..." "this" ??A well-founded refutation left the other party speechless: Thats true ?While everyone was chatting separately, the data in the first batch of hard drives had been transferred. While changing to the second batch, the technicians also opened the transferred project documents at Ed Steiner''s request. For a moment, everyone, whether they were doubtful or determined, focused their attention on the computer screen located in the center of the computer room. After a slightly long loading time, the PDF document was loaded. ? Ed Steiner quickly skipped the previous meaningless content such as project background, and prepared to scroll directly to the key part ?Liu Hongbo may not understand French, but he can understand it. ??Although he had been chatting with the former just now, Ed Steiner did not ignore the whispers of the people in the corner. As the project leader who made the final decision to hand over the wing design to Huaxia Design, he was quite confident. I feel a little guilty now. ??If, as the female engineer said, there was a big problem with the wing during the test, it would be an absolutely devastating blow to the project progress. And it was pretty much the same for himself. Fortunately at this time, Liu Hongbo next to him looked at Ed Steiner, whose anxiety was almost written on his face, and extended a helping hand in time: You can turn directly to page 377. "What?" ?Ed Steiner subconsciously stopped the movement of his hands. Page 377 and beyond are the design description and design conclusion, and the previous parts are the design principles and calculation processes, which need to be read in conjunction with the engineering documents...and it cannot be understood in a day or two. Liu Hongbo explained. "oh" ?Ed Steiner felt that this sentence sounded a bit strange, but at this time he was in extreme anxiety and had no time to think about it. Just follow the other partys suggestion and jump to page 377. Sure enough, the most critical part is directly what catches the eye. A graph showing the calculation results of Mach number and equivalent airspeed. Oh~ ??When the content on the monitor was enlarged, a short but neat exclamation suddenly sounded throughout the computer room. At this time, Liu Hongbo also spoke appropriately: I know that some friends are worried that our lack of design experience will lead to problems with the final design plan. ?This first sentence immediately stunned everyone. Because Liu Hongbo used French... "etc" Ed Steiner was so shocked that his eyes almost popped out: Do you speak French? As for the engineers who had just gathered together, their faces turned red and white. There is quite a sense of embarrassment in saying bad things behind someone''s back, only to be discovered in person. I learned a little bit when I worked with Eurocopter before. Liu Hongbo smiled and replied: Of course, Im not very proficient in speaking, so my subsequent introduction will still be mainly in English Really not very skilled. It can even be said to be blunt. But enough is enough. ?Even those who just looked at the fun or had a skeptical attitude have now corrected their attitude Obviously, since the other party can point out the problem directly, it means that at least he will not be unprepared. Looking at the room of French people in front of him who were still in shock, Liu Hongbo felt relieved in his heart. At this time, there was only one thought in his mind; Holy shit...so is Mr. Chang always so happy when he talks about design plans on stage? ?Of course, just thinking about it, I still have to pretend to be serious on the surface: "In short, please rest assured that Dr. Ed Steiner and all colleagues present here, although our research in the field of jet airliners has just started, we can already calculate the ''transonic speed'' of the aircraft flutter boundary curve in the wind tunnel test. Transonicdip phenomenon As soon as these words came out, everyone in the audience was shocked. ??As the Mach number increases, the flutter speed of most aircraft will gradually decrease in the subsonic region, reaching a minimum near Mach number 1, and then the flutter speed will gradually or suddenly increase. ?This is also the main reason why the maneuverability of many aircraft is worst in the transonic speed range, but gradually recovers when entering the supersonic speed range above Mach 1.4. In fact, as early as the early 1960s, NASA had discovered this law through a large number of wind tunnel tests, and also provided a standard calculation example using the AGARD445.6 airfoil. However, no one has ever been able to reproduce this problem during the design calculation process before. Butthis ??The female engineer who had just expressed her doubts clearly could not even speak coherently at this time: The nonlinear aerodynamic performance of different airfoils in the transonic stage is completely different. If it can be calculated...could it be that you have solved the N-S equation theoretically? Uhthats not the case. Liu Hongbo was also speechless at this overly jumpy speculation: If the smoothness and solvability of the N-S equation were proven, I think you would have seen the relevant news long ago... just like when the Poincar conjecture was proven two years ago. Actually, we have discovered a new turbulence model that combines efficiency and accuracy in the transonic range. You can call it Changs turbulence The specific engineering calculation process involves our commercial secrets, so I am sorry not to reveal it, but the turbulence model itself can be found and used in the TORCH Multiphysics software version 2.0 released next month... (End of this chapter) Chapter 983 Mach number 0985 Chapter 983 Mach number 0.985 Although the most critical turbulence model in the entire process was not developed by Liu Hongbo himself. But this did not affect his feeling of pleasure at this time. Feels refreshed. Is anyone dissatisfied? ?Then you can also find a way to find an awesome junior brother! For a time, a room of French people looked at each other in silence, while Liu Hongbo was still under the effect of the "Mr. Chang Experience Card". ??The entire computer room became inexplicably quiet. ?The only sound left is the hum of the air conditioner and fans running. ?Of course, an experience card is an experience card after all. Actually, what makes Liu Hongbo feel proud is different from what shocks the French. For Europeans, naming a phenomenon or equation after a person''s surname is a common thing. What''s more, this is not a formula or theorem that is universally applicable. Even if it is very useful, it can only make some reputation in the aviation industry... and at most the chemical industry. Its really not worth making any fuss about. What really surprised them was the picture itself. More precisely, its the dimple part. This flutter boundary curve...is actually discontinuous? ?Ed Steiner moved his eyes closer, as if he wanted to get into the screen: And the shape of the depression is also a little... strange... ?At first glance, I didnt feel it, but after zooming in and taking a closer look, I can see that the entire curve is actually divided into three non-connected segments. Furthermore, the degree of denting was much higher than they had estimated beforehand. Nearly 20% of the equivalent airspeed. If the situation is as shown in the image, then the predetermined goal, which is to achieve the maximum usable speed of the wing to Mach 0.95, seems to be theoretically unachievable. This is not good news. Compared to those large passenger aircraft that weigh several hundred tons, business jets have greater restrictions in terms of structure and volume. They are often forced to adopt more radical airfoil designs to pursue range, so they are more likely to be restricted in terms of speed. ?For example, the current signature Falcon 900 series of Dassault Aviations civil division has a cruising speed of only about Mach 0.8. Not even as good as the Boeing 747. ?Ed Steiner hopes to solve this pain point on Falcon Z. In fact, rich peoples time may not be very valuable. But they are often more willing to spend money to save time. So this is a pretty good gimmick. Even the early publicity that has been launched has focused on high speed. Although no specific numerical value is mentioned. But if you operate like a tiger at once and only come up with a product with a cruising speed similar to that of an ordinary passenger plane, it is obviously impossible to meet the needs of potential customers. ?However, this cannot be blamed on Ed Steiner for not knowing. The study of unsteady aerodynamic forces is itself a very complex multidisciplinary problem. Normally, not to mention calculations, even ground simulations cannot fully restore the actual situation. ??However, if a problem like supersonic pitting is really required to be tested, it is impossible to really let the pilot reach the flutter boundary. It will be settled once the situation is about the same. Hence, the results of all current empirical models are conservative. Thats right. Liu Hongbo also entered working mode again and immediately replied: Although supercritical airfoils can achieve a higher lift-to-drag ratio, the flow conditions in the speed range near the speed of sound are much more complicated than conventional airfoils, and the final manifestation in the flutter characteristics is a more severe flutter velocity sag. " Doesnt that mean ?? Ed Steiner wanted to say something, but Liu Hongbo reached out to stop him, indicating that he still had something to say: In addition, flutter velocity sag is not the only abnormal problem that occurs with supercritical airfoils in the transonic speed range. "We conducted wind tunnel tests on several wings with typical characteristics and found that the flutter phenomenon that occurs in the transonic region, especially near the bottom of the dimple, is more complex, such as at certain Mach numbers and specific angles of attack. , a series of phenomena such as beat response, limit cycle oscillation, stall flutter, single degree of freedom flutter, and burst response appeared successively or simultaneously..." ?This sentence made some people feel a little embarrassed - ??The Chinese are obviously not only good at numerical calculations, but they are not far behind in wind tunnel testing...it can even be said to be ahead of others. Fortunately, Liu Hongbo had already forgotten the little incident and quickly continued: Our model can relatively accurately restore the test results of limit cycle oscillation, which is the discontinuous section of the curve you just mentioned, but it is equally powerless for other phenomena with less regularity. And Doctor, you should also know that even wind tunnel testing can only simulate the real response in this speed range qualitatively, not quantitatively... Listening to Liu Hongbos explanation, Ed Steiner felt a little numb. ? He ??even began to feel a little lucky that he had made the decision himself and got rid of the whole task of wing design. In fact, France was the first country in the world to use a two-degree-of-freedom rudder model for ground flutter simulation. Or strictly speaking, Dassault. But precisely because of this, it was easier for Ed Steiner to imagine what kind of **** the other party was describing. Considering that todays time is precious, he decided to temporarily abandon the middle part and go straight to the topic: Sosince the design requirement of Mach number 0.95 cannot be achieved, what are the specific results of your design? Of course Ed Steiner has never read The Analects of Confucius, but he also knows the truth behind it. Therefore, although the target proposed on the surface is 0.95, there is actually a slightly lower psychological expectation. Its just that Ive never mentioned it to anyone else before. ??If the Chinese people can achieve this minimum threshold, then he is willing to accept this design plan in order not to delay the project schedule. However, Liu Hongbos reaction was completely beyond Ed Steiners expectations: "etc" The former frowned: I just introduced some problems encountered during the design process...but I didnt say that I couldnt meet the design requirements? Ah? Ed Steiner had already done some psychological preparation, but he heard this answer. The great sorrow and joy in just half an afternoon made the old man''s heart feel a little overwhelmed. ??He subconsciously knocked on his somewhat stuffy chest and pointed at the screen in front of him: But this picture "This picture is the result of our simulation using the original airfoil provided by you. It is used to verify the accuracy of the calculation method. It is not a design result..." Liu Hongbo raised his forehead and shook his head helplessly. Suddenly, he felt as helpless as when he returned to the classroom to teach students: If you continue to scroll down, you will see several design solutions optimized in different directions... It was only then that everyone remembered that this was just the first picture they saw. It just took a long time because the amount of information in it was too large... ?As the document scrolls down, design plans of different shapes and corresponding calculation results are presented to everyone one after another. "At the beginning, our idea was to try to use limit cycle oscillation, that is, to control the oscillation within a linear range, so that it can be offset by the active suppression system. In theory, the critical speed of flutter can be infinitely close to Mach 1 , about...0.998." A group of people sat in front of the screen, while Liu Hongbo stood behind them and introduced the design process in a leisurely manner: "However, we later realized that the above requirements can only be met when the curve of the limit cycle oscillation amplitude changing with the airflow velocity is perpendicular to the velocity axis. On this basis, as long as there is a slight deviation, it will enter the subcritical fraction. bifurcation, thereby inducing explosive limit cycle oscillations, which is too risky for aircraft..." "So, we finally decided not to solve the problem of transonic dents for the time being, but to squeeze the location of the dents backward so that the aircraft can be relatively safely on the supercritical bifurcation curve, so that harmonic balance can be used The flow control equation can be solved by this method, and then combined with the structural motion equation, the nonlinear flutter can be solved. Considering that the flutter velocity sag is caused by the impact of air compressibility, it is only necessary to optimize the compression effect of the airfoil on the forward flow After excluding some core secrets that cannot be disclosed, Liu Hongbo spent about 40 minutes giving a general introduction to the entire optimization process. At this time, the design file has also been flipped to the bottom position. Despite our great efforts, the results still cannot reach the data of linear limit cycle oscillation. After all, this is determined by theoretical limitations and cannot be broken through simple engineering means..." Liu Hongbo said in a very regretful tone. ??As for everyone else who was listening, their hearts naturally sank following his tone. ?However, before sinking to the bottom, Ed Steiner turned to the final design result. At the same time, Liu Hongbo also changed the subject: Unfortunately, the ultimate speed of our final optimized design only reached Mach number 0.985 ??A dozen pairs of eyes that were originally staring at the computer screen turned to look at Liu Hongbo almost at the same time. ??? Do you hear what you are saying is human? Only reached 0.985? Although due to power limitations, economy and safety considerations, the aircraft cannot really fly at the limit speed that the wings can withstand. But a supercritical wing with such a high ultimate speed basically means that a maximum cruising speed of Mach 0.9-0.95 can be achieved... Compared with the previous generation of business jets, this is already an improvement of almost 15%. ?Ed Steiner took a deep breath and decided not to care about the Chinese man''s seemingly weird tone: Thats enough0.985thats enough (End of this chapter) Chapter 984 In the preliminary round, we have a huge advantage Chapter 984: In the preliminary round, we have a huge advantage According to the plan, Liu Hongbo needs to stay in France for about a week ?Dassault is a mature company after all. Even if Ed Steiner agrees with China''s design in his heart, he cannot make a decision to adopt it at once. Before final signing, the necessary tests still need to be done. As a representative of China, Liu Hongbo does not need to follow the entire process, but at least he must be responsible for providing technical support and running through the basic testing process. The Falcon Z project has a very tight schedule. Fortunately, as a relatively simple commercial project, there is nothing too costly for the four partners to incur internal friction. During this period, Chang Haonan, who finally returned to his normal work rhythm, also became busy again. On the one hand, the Haiyang-1 satellite is approaching the launch window. Although most of the software and hardware adaptation work is actually done by Lin Senming, Chang Haonan still needs to step forward to check and final check important nodes. On the other hand, it is also relatively more energy-consuming. Instead, it is preparing for the preliminary round of the numerical calculation competition. When the organizers of the competition issued the suggestion of asking the special guests to write a question each to enrich the question bank, they received unusually enthusiastic feedback. Most of those who can be included in the special invitation list already have a relatively high status in the industry. As a discipline closer to engineering, in most cases, status is linked to experience. So, this suggestion directly awakened the memories of many big guys. Everyone refined and abstracted the classic or interesting problems they encountered from more than ten years ago to recently and threw them up. There is quite an attitude of wanting to deprive the contestants of their smiles forever. Song Jingming even received a lot of emails, saying that he was inspired to write questions, and that one question could not cover the rich experience he had accumulated over decades. He strongly recommended that he increase the number of questions that each person could submit... In short, it is very uncomfortable. Finally, in order to prevent the many contestants from being overwhelmed in the preliminary stage, Chang Haonan had no choice but to set limits on the difficulty and calculation time of the questions. ?This made one of the professors working at CERN (European Research Center for Nuclear Research) put away the bold idea of ??throwing the nuclear fusion theory research project "Plasma Fluid CFD" into the question bank... As a compromise, each special guest is allowed to provide up to two questions. . Fortunately, although the process is a bit tortuous, the final result is not bad. ?Before the preliminary round at the end of February, the organizers of the conference selected three questions under the witness of several special guests. According to the competition regulations, all participating teams need to submit engineering documents and design documentation within 120 hours from the release of the topic. The final score will be calculated based on the sum of the two highest scores among the three questions. It can be regarded as a relatively regular rule in this era. Therefore, almost all teams that have signed up and are interested in truly reaching the finals focus on the three questions themselves. The question release time is set at 9 a.m. on February 23rd, Beijing time. Not very friendly to European contestants. They need to get up in the middle of the night to read the questions and then start answering them immediately. ??But for Stanford University in Palo Alto, California, it happened to be the night before. In the office of Professor Anthony Jameson. Richard Heltz, and two groups of participating students. ?In addition to the group from Stanford, the other three are from Santa Clara University not far away. ??Although this school has an engineering school, it does not specialize in the field of engineering, so Professor Jameson easily found several contestants who wanted to participate through his personal connections ??Although the competition regulations do not have a reference teacher, it does not say that pre-competition training cannot be done. The six people in front of him are the two "seed players" he found. ?Of course, for such a big matter, it is impossible to just set up double insurance and everything will be fine. In fact, COMSOL has signed a total of about 30 participating teams. About two-thirds of them are relatively competitive. ??However, these teams are scattered across the United States, and there are even two teams from Europe. It is impossible to travel all the way to the San Francisco Bay Area for a preliminary round. ??Moreover, its just a matter of providing guidance in the name of pre-match training and doing it secretly. If it makes too much noise, it will not look good on everyones face. There are less than 5 minutes left before the question time Haltz glanced down at his watch and broke the silence first. In fact, there is an electronic clock hanging on the wall of the office, and there is no need to tell time this time. He simply felt that the atmosphere here was a bit depressing, so he just found a random topic. ?Sure enough, after he started, the students who had been reluctant to speak just now were a little unable to hold back. Professor, what do you think is the possibility that this topic will be beneficial to us? ??A girl named Hermia Moreno asked. I cant see all the questions in the question bank. Jameson had been like a statue, remaining in the same posture on the chair for almost an hour. It was not until he heard this question that he finally moved a little: In general, the scope of the question is mainly in the field of CFD, but it does not necessarily include only CFD. It can also be appropriately combined with other methods. "If it is a classic type of problem such as continuous fluid turbulence, that is the most obvious advantage for us, but on the other hand, if the problem involves granular fluid, or a very large-scale calculation interval, it is not suitable to use finite volume at all. The situation with the law is relatively unfavorable..." In fact, Jameson did not know the details in this regard until he participated in the topic. Hence, while waiting for the question, he was not completely stress-free. Professor Jameson. If there is one person here who values ??the results of the competition the most, it is naturally Heltz, who is the middle manager of COMSOL: You said before that there is unlikely to be open cheating on the part of the organizer such as leaking the questions, but will they do anything in the process of extracting the questions? ?This issue is a little more sensitive. Even Jameson hesitated for a while. I cant say. He shook his head: "Logically speaking, they invited all the question makers to witness the question selection process. Although most people are unlikely to make a special trip for this matter, in the end they will choose who accepts the invitation. The organizer There is no way to control the edges, so if you want to manipulate the process, there are too many uncontrollable factors. But having said that, if they want to regain their advantage in the CFD field, then manipulating the problem range is indeed a cost-effective way..." Once people communicate with each other, the feeling of suffering that lasts for seconds will be much lessened. ?So, before you know it, the last five minutes have passed... Beep, beep The timer that has been set sounds a beep, which is particularly harsh in the office building at night. Jameson sat up straight at the speed of light, silenced the sound with one hand, and clicked refresh on the web page with the other hand. ??The Torch Group is very willing to spend money on servers, so the question-writing website will not crash directly after being clicked by tens of thousands of people like the course selection websites of some schools in later generations. About a minute later, a PDF document was downloaded to the computer desktop. Jamesons hands were shaking a little, and he didnt even open the file until he double-clicked it for the second time. The mechanism of soil particle migration by groundwater seepage involves the microscopic particle-fluid coupling process, that is, particle-scale soil movement, fluid flow and particle-fluid interaction Looking at the title displayed on the first page, several people couldn''t help but feel nervous. Whatever you are afraid of will come. ?This kind of particle-fluid problem, and also an infinite boundary problem such as groundwater seepage, is almost difficult to solve with a simple finite volume method. It is the "worst case scenario" that Jameson just mentioned. No way Haltz''s tone was a little annoyed. ?Jameson frowned even though he said nothing. ?However, he still patiently turned to the second page. For a subsonic aircraft with a cockpit, there is an object surface streamline diagram as shown in the figure. The figure shows the inverted cone leeward flow separation area, and the leeward flow separation point is a saddle point..." ?? Jameson and several students brows gradually widened. ?This problem is so simple that it is almost impossible to fully reflect the advantages of COMSOL Multiphysics. For some experienced people, it can even be solved by building their own wheels. ?However, for their purposes, it was enough. This question is just like...an example question from a textbook. ?Hermia said in a half-smiling tone. Dont underestimate the enemy too much. Although Jameson was obviously in a good mood, he still warned: Im afraid the vast majority of teams will choose this question among the three choices. In fact, it is more of a test of basic skills As he spoke, he continued to turn the pages and came to the last question. Assume that the cross-sectional profile of the bottom of the river bed in a shallow water area conforms to the equations shown in (3-1) below, and water can be regarded as an incompressible fluid... Please establish a mathematical format to simulate two-dimensional shallow water flow..." "etc" Another student next to him immediately widened his eyes: This question I seem to have seen something similar during training before? He turned his head in disbelief and looked at his companions. Then I saw the same answer from other peoples eyes We have a great advantage! ??If we say that after seeing the second question just now, Jameson''s mentality was just happy. ?So now, what he feels is... Ecstasy. In fact, the submitter of this question was Professor Jameson himself. He and Hertz had conceived many possibilities in advance, but they never imagined that it would be possible to go so smoothly... For a moment, Jameson even felt a little guilty for his initial thoughts Obviously, the Chinese did not do anything. These three questions are indeed randomly selected. Otherwise, it would be impossible to be so beneficial to them... (End of this chapter) Chapter 985 Boy, do you want to study for a PhD? Chapter 985 Boy, do you want to study for a PhD? ??Professor Jamesons great sorrow and joy are not mentioned for the moment. For most ordinary contestants, they are more concerned about the question itself. ?Needless to say, the last two questions are purely a test of basic skills. The first question seems very abstract, but it is actually a standard test knowledge point. ??If the contestant is proficient in the discrete element method, the difficulty will be the least, and it can be completed in one day at most. If you have never been exposed to discrete elements, there is no need to think about it. The infinite element method is even less popular, and the related theory is not yet complete. ??If any contestant can use this thing to achieve the same effect as discrete elements, they must first improve a series of algorithms by themselves, and then write a executable calculation program. ??If anyone has this ability, there is no need to compete below. You can send an invitation letter on the spot and serve as a special guest. Please sit directly on the rostrum.jpg As for the traditional troika: finite difference method, finite element method, and finite volume method, even from their names, you can tell that they are not suitable for solving such infinite area problems. If the solution is forced, neither the calculation efficiency nor the accuracy will be ideal. Actually, with the level of most contestants, there is a high probability that a divergent result will be obtained directly... So, it is better to go directly to the next two questions. In any case, the two highest scores are taken in the end, which is allowed by the design of the competition system. It can even be said to encourage players to make trade-offs. Teacher, these questions seem to be the types that COMSOL is better at? In the computer room of Torch Laboratory, Li Yabo sat in front of the screen, looking at the topic description document in front of him and asked: Is your question... really chosen at random? ??When it was decided to hold a numerical calculation competition at the end of last year, Li Yabo specifically asked Chang Haonan if he needed to participate. Later, on the one hand, it was out of consideration to avoid suspicion. On the other hand, Li Yabo now has a Nature and a major national defense report in hand, so he really doesnt need these false names. In short, I didnt sign up. However, if you dont participate, you wont participate. Li Yabo has been paying attention to the competition situation. Furthermore, as a member of Torch Lab, he also has a good understanding of his own products and major competitors. It can even be said that among the Torch Group, apart from Chang Haonan himself, the one who is most proficient in using COMSOL Multiphysics is Li Yabo. Hence, he made the same judgment as Jameson on the other side of the ocean almost as soon as he saw the title. Even the emotion is the same ?Li Yabo also believes that Chang Haonan must take advantage of the organizer to use some tricks to gain a relatively advantageous position for himself. Ahemof course. Chang Haonan cleared his throat and showed a clear conscience: The most important thing in academic research is to seek truth from facts. I hold competitions with only three purposes: fairness! Fairness! And fairness! Just because we are the organizers, we cant do everything for ourselves, right? Thats too outrageous! As long as you focus on yourself in the most critical place... ?Of course, he said the last sentence in his heart. Otherwise it will affect Wei Guangzhengs image as a mentor. Even so, Li Yabo still looked at Chang Haonan with suspicious eyes. Looking at that, its obvious that he doesnt quite believe it. Its true that academics must be pragmatic, but I think this competition is more like business Li Yabo started by looking at the essence through phenomena. ?Chang Haonan glanced at the other party with a teachable look: Its just a preliminary round, it wont affect the overall situation. Besides, since the theme of this competition has been determined to be computational fluid dynamics, no matter how hard the questions are, they will not be able to escape this circle. Li Yabo did not refute this time. But I still feel that something is not quite right. The situation in the preliminary round will indeed not affect the overall situation, because most participating teams will choose the more skilled TORCH Multiphysics to participate even out of caution. However, the topics of the preliminary round, as well as the project documents that will eventually enter the semi-finals, must be displayed on the official website of the competition (public execution). If everyone discovers that one or a few of the top-ranked groups actually use competing products to participate in the competition, it will not be a shameful thing for the Torch Group at least. Considering that there is still nearly a month between the preliminary rounds and the finals, it is not even ruled out that some teams will choose to join the COMSOL camp. ?Of course, the advantages accumulated by the Torch Group cannot be loosened just because of one game. But based on Li Yabos understanding of Chang Haonan in the past two years, he did not think that the latter would let this happen. Is it possible that there are other tricks in these questions? He thought this while returning his attention to the computer screen in front of him. Looking at Li Yabo who was already entangled, Chang Haonan decided to divert his attention: Thats right, Yabo. Remember to sort out your results recently and be careful to delete sensitive content. The former turned around, a trace of doubt flashing in his eyes. According to the plan at the end of last year, the school will pilot a round of concentrated masters to doctoral programs this summer. Our college has a total of 3 places. Chang Haonan explained: After you pass, you will be in the undergraduate program and go directly to the Ph.D. This year you will finish the second year of the masters degree, and next year you will be in the third year of the Ph.D. Under normal circumstances, you can get the Ph.D. in the fifth year. In addition, if your results are sufficient...I can also consider applying for early graduation for you. Hearing the news, Li Yabo''s eyes lit up. He must have finished his Ph.D. Its just that these days, there is no policy for undergraduates to study directly for doctoral degrees. Unless there are special circumstances, you have to study for a master''s degree first. Li Yabo was indeed excellent as an undergraduate, but he was obviously still 100 million points behind Chang Haonan back then, so he naturally did not receive special care. The academic length of a PhD starting from a master''s degree is theoretically 3.5 years, but in most cases it is actually 4 years. ??If you successfully transfer from a master''s degree to a Ph.D., you can save two years at least. Teacher, is the assessment format for transferring from masters degree to Ph.D. similar to graduation defense, or does it require an interview? The two things may seem similar, but the key points that need to be prepared are completely different. "Um" Actually, Chang Haonan is really not sure. In fact, considering Li Yabo''s situation and Chang Haonan''s identity, it would be enough for him to just go through the motions. But it is enough to know this kind of thing in your heart, and it is definitely impossible to say it openly: You are ready according to the format of graduation defense. He thought for a moment and replied: Graduate students...in the final analysis, it is scientific research that speaks for itself. As long as your research results are sufficient, it doesnt matter what form it is Li Yabo obviously wanted to ask something more, but at this moment, Chang Haonan''s cell phone rang. is the administrative assistant of the laboratory, Liu Chenchen. Teacher Liu? He pressed the answer button and put it to his ear. Professor Chang, Engineer Yan Zhongcheng just came to see you and is waiting in the reception room. Look... ?This name made Chang Haonan stunned. The chief designer of the turbojet 14 and later the QC130 project. Can also be regarded as Chang Haonans old leader. ?However, since the establishment of the Turbofan 10 project, Yan Zhongchengs main focus has been on aeroderivative gas turbines, so the two have not had working contact for several years. "You can take him to my office. I''m in the computer room. I''ll be there right away." It is naturally impossible to talk about important things on a mobile phone. Therefore, after Chang Haonan hung up the phone, he gave Li Yabo a few brief instructions, then turned around and left the computer room and went upstairs. (End of this chapter) Chapter 986 Marine gas turbine Chapter 986 Ship Gas Turbine ?Liu Chenchen has the key to Chang Haonan''s office, but he certainly can''t let anyone in casually. Therefore, when the latter returned upstairs, Yan Zhongcheng was waiting in the corridor, holding a cotton hat in his hand and using the ear protection to fan himself. Looking like an ordinary old man from the Northeast. Mr. Yan, why didnt you contact me in advance when you came here? I want to be prepared. Chang Haonan said as he took out the key and opened the door. In fact, his main feeling about Yan Zhongcheng''s arrival was that of surprise. ?Especially when the other party went directly to the Torch Laboratory. But no matter what, the two have been in a relationship for so many years, so they are definitely welcome. "I am also in Beijing for a meeting, and I thought I would stop by to see Mr. Chang..." Meeting? Chang Haonan stopped opening the tea box: Isnt it a little early? At the end of winter and early spring, when it came to going to Beijing for a meeting, Chang Haonan naturally thought it was a national conference. But that should only start in mid-March. Its not the one who will Yan Zhongcheng quickly denied: It was a symposium held by the Naval Equipment Department, and we went to several institutes including our 606 Institute and the 703 Institute of Shipbuilding Industry. ?Although the theme of the conference was not directly mentioned, there is basically only one possibility to put Institute 606 and Institute 703 together: New ship gas turbine? Chang Haonan frowned: But...the group level has not received any news about the start of model selection? The gas turbine models being selected at the moment are definitely for new destroyers, and there is a high probability that they will be the main model in the next twenty years or even longer. In fact, the reason why he planned to develop a 30-MW turbofan 10 aeroderivative engine early that year was to target this demand. ?Now that the production of the turbofan 10 has been completed, the establishment of the QC300 project should indeed be put on the agenda. But in any case, it is absolutely impossible for such a big matter to be settled between the Naval Equipment Department and several secondary research institutes. Must involve the General Armament Department and the group level. But he didn''t hear anything about it. Ohits not yet time to officially start the selection process. Yan Zhongcheng explained: "Haizhuang didn''t say it clearly, but I guess... this time we should just check it out in advance so that the higher-up leaders can have an idea." Chang Haonan held two cups and sat on another sofa next to Yan Zhongcheng, and gave the cup with tea leaves to the latter: Other institutes have nothing to say, and they probably dont have any competitive products on hand. There are only 703 institutions...should they be working on localized UGT25000 now? Yan Zhongcheng took the tea cup, his expression and movements seemed a bit reluctant - For him, the situation was a bit embarrassing after Chang Haonan took office as the chief planner of the Aerospace Power Group. It is equivalent to his former subordinates now becoming superiors. Normally speaking, this situation is actually not particularly rare. ??Moreover, when the August 3rd Project was launched, Yan Zhongcheng had guessed that this day would come sooner or later. The problem is that Chang Haonan''s reversal was too early... There is no time to adapt. ?Of course, this is human nature. ?Chang Haonan can also understand. But precisely because he could understand it, he roughly guessed from just now that the other party came specifically to visit him today, and it was definitely not just a drop-in. ?Now it seems that is indeed the case. "right." Yan Zhongcheng nodded: There have been rumors that this symposium will affect not only the selection of ship gas turbine models, but also the subsequent development route of the entire domestic destroyer. 052C? Chang Haonan asked almost subconsciously, but in an instant he realized that the time was not right: Nothe first two ships of 052C are about to be launched That is the new and improved model in the future... The model demonstration of 052B/C has been completed as early as 1993, and now, eight units are used on the four ships 168-171, plus two units as backup, a total of ten UGT25000 units have been used. All were shipped to China. In any case, the design plans of these two models are unlikely to change. Hence, the influence route mentioned by Yan Zhongcheng can only be a newer type of 052D. However, due to some influence from Chang Haonan, the current design of 052C in this timeline actually has a lot of shadows of the previous 052D, such as the more versatile common frame vertical hair, and skipping air cooling directly. Water-cooled 346 radar. Of course, there are also hangars and helicopter decks that have become longer to accommodate the Z-12 helicopter. So it is difficult to speculate what 052D will look like in this life. Although the 052C has not yet been launched, the combat system has been fully verified on the Bisheng. The 052B using the same power and hull design is also undergoing trial trials. The navy is generally very satisfied with the performance of this combination..." At this point, Yan Zhongcheng took a sip of water before continuing: So, whether the 052C will directly start mass construction, or just build two ships like the previous models, as a verification of the regional air defense system, and then develop a newer and more combat-effective model, there is no conclusion yet. The hull of 052B/C, especially the compartment distribution, is designed to use UGT25000. If 052C is mass-produced, UGT25000 must be fully domestically produced. Now the 703 Institute has actually pushed the localization rate to almost 75%. Basically, most wearing parts no longer need to be imported. It is a low-risk, low-cost, short-term and fast option. "However, some people believe that the UGT25000 was not originally designed as a power gas turbine. Although the power is sufficient, it cannot be compared with similar models in terms of fuel consumption, vibration, failure rate, or size, and is not suitable for long-term use as the main model in my country... " I came here today just to ask Mr. Chang your opinion on this matter Hearing this, Chang Haonan finally understood. ? Shipbuilding industry systems and aviation industry systems currently both have gas turbine research and development capabilities, but the logistics needs of the military determine that it is impossible to be equal in selection. It can be regarded as another version of the sea-air gas turbine dispute. In the original timeline, Turbofan 10 itself did not mature until after 2010, so this competition ended almost before it started As the only option available, the domestically produced GT25000 from Institute 703 won without any doubt. But now, the fate of Turbofan 10 is completely different. ??Although compared to GT25000, QC300 has not yet been formally approved as a project, and even specific technical indicators have not been released yet. ??But seeing that the little brother in the Air Force next door is now full of oil, the Navy, as the second brother, has to consider a more attractive option. ?That is to be greedy again. In any case, the military struggle situation has eased to a certain extent in recent years. It seems that it is possible to achieve more advanced gas turbines in one step. ?This can also achieve common models with larger capital ships that may exist in the future, as well as other gas turbine-powered auxiliary ships. Yan Zhongcheng is undoubtedly here to ask for advice. Mr. Yan, you should have seen the detailed technical specifications of the turbofan 10 core machine, right? ?Chang Haonan did not directly give a countermeasure, but asked a seemingly irrelevant question. Of course. Yan Zhongcheng replied without hesitation: After the QC130 was finalized, I was actually considering aeroderivative combustion based on the Turbofan 10, but at that time, whether it was the group or the 606 Institute, the resources were concentrated on the Turbofan 10 itself..." Thats fine, as long as you have a clear understanding of the situation of the turbofan 10. ?Chang Haonan waved his hand and interrupted the other party: Compared with the 703 institute, our plan has an absolute advantage in terms of technical indicators. "Even according to the most conservative estimate, the QC300 can fully compete with the LM2500+ just installed by the US military, which is a rated power of 30 megawatts, a fuel consumption of 0.21kg/(kWh), and a simple cycle efficiency of between 38-40 , and a total weight of 5.5 tons or less. Especially the last item, even if the hull design itself does not undergo major changes, a lighter and smaller gas turbine can leave more internal space, and the burden on the turbine department will be lower. In addition, due to the smaller size of the QC300, even if an intercooling and heat recovery system is added, it will not put too much pressure on the cabin. The so-called intercooling recuperation is to add an intercooler between the low and high pressure compressors and add a recuperator at the exhaust port. ?The intercooler reduces the temperature of the air entering the high-pressure compressor, thereby reducing the compression power consumption of the high-pressure compressor. The regenerator allows the compressed air to absorb the heat in the exhaust gas, thus reducing the amount of heat that needs to be added to the combustion chamber. ?At the same time, the intercooler can also correspondingly reduce the outlet temperature of the high-pressure compressor, thereby increasing the temperature difference between the fluids on both sides of the regenerator and further improving the heat exchange efficiency of the regenerator itself. Thus significantly improving thermal efficiency. For the QC300, which can achieve a thermal efficiency of 39% in a simple cycle, if it is changed to an intercooling and heat recovery cycle, it is not an exaggeration to increase the efficiency to about 45% under ideal working conditions. Yan Zhongcheng also smiled after hearing this: If you say that, Mr. Chang, then Ill feel relieved... Our QC300 doesnt even have drawings now. If I talk about it in vain, the Navy will inevitably have concerns... But if I say this is the news revealed by you, Mr. Chang, the persuasiveness will be different..." ?Chang Haonan almost couldnt hold his nerve Compared to asking questions, this wave seems to be closer to seeking endorsements. Fortunately, the results are almost the same. Ahem He cleared his throat: Dont be too aggressive when the time comes. After all, the overall design of the ship is still completed by the shipbuilding industry. In any case, cooperation is inevitable in the future. It is not good if the relationship becomes tense..." In addition, in the process of developing QC300, we can consider cooperating with the 703 Institute. First of all, we cant take all the benefits...Secondly, the ships power system does not only include gas turbines. After all, the other party is a research institute of the shipbuilding industry and has much more experience in ship-fuel coordination than we do... (End of this chapter) Chapter 987 Multi-stage adjustable stator blade matching technology Chapter 987 Multi-level adjustable vane matching technology ?In Chang Haonan''s view, after the precedent of QC130, it should not be particularly difficult for the navy and shipbuilding industry to accept the QC300, which is also designed by 606 and uses aeroderivative fuel. Yan Zhongchengs trip is most likely just for stability. Speak up, Mr. Yan. After talking about the serious matter of gas turbine selection, Chang Haonan couldn''t see off the guests right away, so he took this opportunity to chat with him about the establishment of the aeroderivative gas turbine project: "My idea for the specific research and development work of QC300 is...if you have no physical problems, you will continue to take the lead." ?Hearing this suggestion, Yan Zhongcheng''s whole body was shaken, and a flash of light flashed in his eyes. Due to relatively complex historical factors, his efforts to gain academicianship failed last year. Originally, he actually no longer thought much about this matter. ??But the QC300 is purely a project developed by the Aerospace Power Group. If I could serve as the chief designer It is definitely a big help to break through the realm of academician. But in an instant, he had some concerns: "this" Yan Zhongcheng glanced at Chang Haonan: I asked the organization to take care of me. In the two years since QC130 ended, I didnt have a lot of burden, but I did a lot of recuperation. There must be no physical problems. Its just...you know better about the turbofan 10 after all, and the entire core machine was developed by you..." In other units, leaders pick peaches halfway. In the end, when he got here, he actually picked the leader''s peach. ??Although it is true that Chang Haonan has more than 100 million peaches in his hand. But its still weird. At least guilty. ?However, before Yan Zhongcheng finished speaking, Chang Haonan waved his hand: The core engine of Turbofan 10 will be used in a wide range of applications in the future. I have many things to do, and it is impossible to handle every project personally. Then I will have no time to do other things. "So... my main focus next should be on the high-bypass ratio turbofan, and then wait until the technology of high-temperature alloys is developed to unleash the potential of the turbofan 10 as a fourth-generation core machine. come out." "Moreover, although aviation power and ship power are both gas turbines in essence, when it comes to engineering, the difference is still quite big. In this regard, only Mr. Yan in our group has the successful experience of QC130, and you will definitely play an important role. of" Yan Zhongcheng didnt really want to do it, but he was just a little psychologically burdened. In addition, he had not directly participated in the research and development of the turbofan 10, which made him feel unsure. ?Now that Chang Haonan has said this, it is impossible for him to continue to refuse. ?So after hesitating for a moment, he nodded. Dont have too much psychological pressure. Chang Haonan laughed when he saw this: "I don''t want to be a completely hands-off shopkeeper. I still have to be responsible for the work of the boss..." What this basically means is that he will still serve as chief engineer. Although in most cases, the chief engineer will not interfere with the technical details of the project, this is mainly due to the different division of labor. As the top decision-maker and person in charge of the project, if the chief engineer is willing and capable, he can of course intervene in the design work when necessary. ?If a person like Chang Haonan were to be the chief engineer, he would basically play the role of a stabilizing figure and a technical backbone. Mr. Chang, please stop scaring me... Hearing this, Yan Zhongcheng finally breathed a sigh of relief: "To be honest, other parts of the turbofan 10''s aeroderivative combustion are fine. Either I can understand it, or like the combustion chamber, I can just use the test results as known items. Only the design of the high-pressure compressor, I After seeing the design plan, Im still confused Although the aeroderivative combustion engine is developed on the basis of the core aircraft engine, because the working conditions are so different, only the combustion chamber and turbine are often the only ones that change less. Although the high-pressure compressor is also part of the "core engine", it often requires extensive modifications. ?Especially after the introduction of intercooling heat recovery technology, the thermal management situation will become more complicated. It is far from a problem that can be solved by putting a shell on the aviation engine and changing the calibration. Dont be impatient about this. ?Chang Haonan pretended to be relaxed and leaned on the sofa: The foundation of QC300 is pretty good, so it is not difficult for the model life to last for decades. There is no need to build it overnight and use all the technologies at hand. The first step is to build a simple cycle gas turbine to solve the most pressing problems of users, and then gradually add other cash technologies to gradually upgrade it. In addition, as far as the compressor part you just mentioned..." ?At this point, Yan Zhongcheng had gradually relaxed, but when he heard Chang Haonan suddenly talk about technical issues, his nerves suddenly became tense again: Mr. Chang, wait a moment... ?He stretched out his hand to signal the latter to wait, and at the same time quickly took out the notebook and pen he carried with him from his bag: You continue. Looking at the opponent''s silky little combo, Chang Haonan showed a dumbfounded expression: Actually, Im just providing an idea, not any specific technical guidance Having said that, Yan Zhongchengs things have already been placed on the coffee table, and it is impossible for anyone to put them away. ?So, he just explained it casually, and then returned to the topic: "You seem confused, just because you don''t know where to start. I can actually tell you specifically how the high-pressure compressor part of the turbofan 10 is designed, including for the fourth-generation engine that will be upgraded to a thrust ratio of 10 in the future. With the margin left, these parts are actually not very difficult..." But if we talk about it before the overall design of QC300 is finalized, Im worried that it will interfere with your thinking. "I suggest Mr. Yan to change the angle, put aside everything except the combustion chamber and turbine, and design a set of axial flow compressors from scratch based entirely on the characteristics of naval gas engines. This will only make you more constrained. Less, and the training effect for the technical team is stronger. Yan Zhongcheng stopped writing thoughtfully, touching his chin while thinking about Chang Haonan''s words. For example, compared with aircraft engines, marine gas engines are relatively less sensitive to weight, but they may need to work under lower operating conditions for a long time, especially if full-combustion power is used in the future. Therefore, we can try to adopt an adjustable vane control strategy at the design level of the 7-stage high-pressure compressor. By changing the vane angle, we can provide an ideal angle of attack for the rotor of the subsequent stage, and establish a control strategy suitable for the load of each working condition. The inter-stage matching condition allows the engine control system to automatically select the most appropriate vane angle for different operating conditions, improving surge boundaries and work efficiency. "In addition, marine gas turbines do not need to consider performance optimization under supersonic operating conditions, so there is no need to take into account the problems caused by too high a boost ratio. The total pressure ratio after removing the fan can be increased to 24, or even above 26 , to improve output power and fuel economy..." "In general, before officially establishing the project, you can first consider doing some preliminary work with relatively low investment, such as using a relatively simple one-dimensional average streamline method to establish an aerodynamic parameter calculation model, and then see if you can cooperate with the Navy and other places Cooperate with units that use other types of gas turbines to compile a model library for performance prediction. In this way, when you need to build a gas turbine model with variable dimensions later, at least you dont have to build the wheel from scratch... Also, from a cycle perspective, simply placing an intercooler between the high- and low-pressure compressors will have a relatively small impact on the cycle process itself, but it can significantly reduce the compression power consumption of the high-pressure compressor. In this case, you can consider taking the lower inlet air temperature into consideration when designing the high-pressure compressor..." ?Although Chang Haonan said before that this is not specific technical guidance, for older generation technicians like Yan Zhongcheng, things in the research and development direction are more important. Therefore, the latter still picked up his pen and wrote down almost word for word what Chang Haonan said... (End of this chapter) Chapter 988 Meet your opponent in chess Chapter 988 Meeting an opponent in chess Actually, Chang Haonan is also somewhat interested in this symposium. ??It''s not that he was worried about the outcome of Yan Zhongcheng''s battle with the opponent, so he had to play in person. Mainly just want to satisfy curiosity. Previously, he had only learned about the current general situation of 052C from a few words from Lin Qing and Wang Xiaomo. It is not clear what this key model, which is the link between previous generations, looks like today. Since the Navy and the Navy have put forward the idea of ??"continuing to improve the 052C", the updated 052D should at least have an overall plan. Considering that the power of two QC300s is 20% more than that of two GT25000s, this model is likely to choose a more radical design solution. ?Of course, with Chang Haonan''s current position, if he specially sent a letter to ask, he would definitely get a response. But if we work hard just for such a thing, it seems a bit unworthy... ?However, if you are interested, you are still interested. Since the Naval Equipment Department specially held such a meeting before the official selection, and only invited technical personnel at the institute level to participate, it was obviously intended to reduce the impact of the selection results on the selection results by the top brass of the two major military industry systems to a certain extent. non-technical impact. ?Chang Haonan, as the chief designer of Turbofan 10, is in a special situation. Of course, he can also be interpreted as a technical staff. ??But this is breaking the rules of the game ?The Aviation Power Group has sent a leader, so for the sake of reciprocity, does the Shipbuilding Industry Group of another company also have to send a leader? Once the two of you sit there, the Naval Equipment Department will be a little overwhelmed. Do the general assembly and navy chiefs also need to be present? ?Then what kind of symposium will be held? Just make the selection in advance... Therefore, Chang Haonan finally suppressed his eagerness to try. The symposium is scheduled for February 26, three days later. The situation is similar to Chang Haonans previous estimate. The leading roles are the Aviation Power Institute 606 and the Shipbuilding Industry Institute 703. Its just that the other research institutes invited are not entirely a foil. Because the theme of this symposium is strictly speaking "Development of Ship Power System". In addition to the gas turbine as the core, gearboxes, propulsion systems, cruise diesel engines, power generation auxiliary engines, etc. are also included in the discussion. ?Of course, not every one of them involves selection issues. ?At present, China''s scientific research resources are still relatively limited, and it is impossible to afford free competition among multiple parties in all fields. As for private enterprises Private enterprises at the beginning of the 21st century had no hope at all. In fact, according to the original plan, even the gas turbine should have only one option for this project. You should know that Huaxia has been exposed to UGT25000 from Ermao in the early 1990s, and a few years later decided to use it as the power system of 052B/C and localize it. By this time in 2002, this project had been progressing step by step for about five or six years. ?Its just that a competitor appeared halfway through that no one expected ?Chang Haonan said at the founding meeting of the Aviation Power Group that he would build a 30-megawatt aeroderivative gas turbine. This is something everyone knows. But the problem is, for aviation to be converted to fuel, you must first have navigation. ?The common estimate in the industry at that time was that the Turbofan 10 would be completely finalized around 2005. After stabilizing for a period of time, the project will be initiated to develop aeroderivative gas turbines, and then after the gas turbines are finalized, it will be after 2010. In other words, everyone feels that the high-power gas turbine of the Aerospace Power Group should be prepared for the next generation of brand-new surface ships. As a result, even Chang Haonan did not expect that the production of turbofan 10 could be finalized so smoothly that he could start considering the design of QC300 in early 2002... This disrupted the Navy''s previous equipment update plan. For the 703 Research Institute, which has already studied GT25000 extensively, this matter is even more outrageous. ??While eating hot pot and singing songs, the project I got was suddenly blocked. How can you bear this? Therefore, when the symposium came to the topic of gas turbines, Wen Xueyou, the chief engineer of the 703 Institute in charge of GT25000, directly brought out the results of these years of visiting... "I believe that comrades in the Navy are already very familiar with the performance of the UGT25000 prototype. I will only give a brief introduction here. It has currently been tested on the 052B Type 168 ship, and its performance is fully in line with expectations. The 052C type that has entered the equipment outfitting stage also uses this model..." Compared with QC300, the main advantage of GT25000 is that the situation is known and can be taken almost immediately. ? ? Thanks to the rapid progress of the overall level of China''s machinery industry on this timeline, the latter''s localization process has been almost smooth sailing since the turn of the millennium. After a brief background introduction, Jacky Wen quickly entered the topic of today: What I want to focus on next is that while we are domesticating the GT25000, we are also improving and upgrading it. First of all, as early as the late 1990s, our institute constructed a zero-dimensional full-machine model and a two-dimensional component-level model of the GT25000, and based on this, we conducted theoretical research on the feasibility of adding an intercooling heat recovery system. Later, we also carried out intercooling heat recovery modification on a 401A gas turbine based on the research results, and completed the preliminary program demonstration as a technology demonstrator. According to the test results, its thermal efficiency has increased by about 3.8% compared with before the transformation, and its output power has increased by about 5% The development direction of marine gas turbines is tangible, so it is expected that the 703 Institute will also consider the intercooled heat recovery system as a future upgrade route. ??As for taking advantage of my own experience in marine power to develop a prototype as early as possible, it is even more logical. Therefore, after Jacky Wen finished introducing this part, when he glanced at Yan Zhongcheng sitting below from the corner of his eye, he found that the latter did not seem to show any emotional fluctuations. ?This made him a little worried. ?However, Jacky Wen quickly adjusted his mentality. Because, there is another "freezing trump card" later. He turned the PPT to the next page. The above is the title of the second part: Adaptive processing of the receiver. On the other hand, compared with aero engines, marine gas turbines, while pursuing higher efficiency under design conditions, also require better stability at non-design speeds. Therefore, it is necessary to ensure that marine gas engines have high performance at high speeds. While improving efficiency, special consideration should be given to its actual operating stability under lower working conditions. After a short pause, Jacky Wen continued to introduce: "For this reason, we designed an adaptive processing casing while trying to keep the core components as common as possible. It has openings at the leading edge and trailing edge of the moving blade, and is connected through a bridge structure in the middle. Using the front and rear The pressure difference between the two openings causes the airflow near the rear opening to open forward, thereby changing the core of the tip clearance vortex and effectively weakening the generation of secondary flow from tip leakage..." This design can take into account compressor efficiency and stability margin, and is suitable for blocking stalls and tip overload stalls in cusp stalls, as well as modal stalls. According to simulation tests, when the compressor is in modal stall, the new adaptive casing can expand stability by up to 2%, and when the compressor stall type changes to cusp stall, the stability expansion effect can reach 6%. Overall, It can increase the average thermal efficiency of the steam turbine by 3.5% under operating conditions below 50% speed, while the efficiency at the design point is only reduced by 0.23%, with almost no adverse effects..." Yan Zhongcheng was quietly listening to Jacky Wens introduction below, his expression gradually becoming playful ?The other party just mentioned the difference between marine gas turbines and aviation engines, obviously to emphasize their lack of experience in the field of marine power. ?Of course, we must admit that this adaptive receiver technology is indeed quite clever. With a relatively small cost, it is possible to achieve both high and low speed performance of the gas turbine. It can be regarded as solving a huge pain point of gas turbine power. ??If I had come to the meeting earlier, I might not have been able to come up with any good solutions. But now, things are different Three days ago, the multi-level adjustable stator blade matching technology proposed by Mr. Chang seemed to have the same goal but a tit-for-tat meaning... (End of this chapter) Chapter 989 So scary jpg Chapter 989 So terrifying.jpg ??After Jacky Wen finished speaking on his last page of PPT, he turned around, stood on the podium and looked around. The following people from the navy and other technical personnel from other fields either lowered their heads in thought, nodded, or wrote furiously... In short, they all showed a very serious attitude. Obviously, his introduction this time has worked well. ?Seeing this scene, Jacky Wen couldn''t help but breathe a sigh of relief. ?He put his hands behind his back, giving a feeling of looking down at the world. Although the foundation of GT25000 is indeed not as good as QC300, this is mainly reflected in its design as an industrial gas turbine. Whether it is power generation or pipeline power, there is no need to pursue extreme compactness. After switching to marine power, this aspect became a shortcoming that was difficult to optimize. ?However, Jacky Wen feels that, regardless of future matters, if he eats the power system of the 052 series follow-up ship today, the problem should not be big. On the one hand, the index performance of GT25000 is not bad, and it also has considerable upgrade potential, which is completely sufficient for the 052 series. On the other hand, it is also more important. He has seen the gas turbine designed by 606 for the Type 054 frigate based on the turbojet 14. From a technical point of view, it is indeed close to impeccable. But it can be seen that the other party is still designing gas turbines with the same ideas as designing aviation engines. For example, in order to improve fuel economy under normal conditions, a relatively low design point speed has to be selected, resulting in a certain impact on the maximum power and corresponding efficiency of the speed. It is precisely for this reason that today he specifically mentioned the adaptive processing technology of the receiver that can broaden the working range. After all, even in a diesel-fuel alternating power system, the gas turbine cannot always operate at high speed. Cruising diesel engines generally can only provide a speed of just over 10 knots. If you want to go faster, whether it is 20 knots or 30 knots, you have to start the gas turbine. With this thought in mind, Jacky Wen slowly walked off the podium amidst a burst of warm applause. ?Even in the process of returning to his seat, he even made a short detour and passed by Yan Zhongcheng. ? It turned out that although the other party was also lowering his head to remember something just now, the content was different from what he imagined - ??Although it was just a quick walk, Jacky Wen still caught sight of a piece of content with his excellent dynamic vision. The casing treatment has little impact on the core part of the whole machine, and the effect is poor compared to xxxx technology Is it possible to consider combining receiver adaption and xxxx technology? Jacky Wen held his breath almost subconsciously. Yan Zhongchengs handwriting is very fast, and the time is short, so many of the handwriting can only be half recognized and half guessed. But everyone is engaged in gas engines, so most of the content is not difficult to guess. Only the xxxx technology, I dont know what it is at all. Jacky Wen spent a few seconds picking up all the proper nouns in his mind and comparing them, but he couldn''t find any matching ones. ?At this moment, he who was so confident just now finally realized that something was wrong. ? Regardless of what xxxx is specifically, it seems that the purpose of the other person taking notes is not, or at least not just to learn ideas as I thought before. rather like in Prepare countermeasures. This countermeasure was not even improvised. It is prepared in advance. Yan Zhongcheng wouldnt just make up a technical term to deceive everyone, right? Just like that, when Jacky Wen sat back down in his seat, a thin layer of sweat even appeared on his forehead. I didnt even hear an engineer from the Shanghai 711 Institute next to me ask technical questions. It wasnt until the other party called him again that he reacted. Institute?711 is responsible for the research and development of marine diesel engines. ??It''s just that it''s not the main engine for cruising, but the auxiliary engine for power generation. Mr. Wen. ?The other party looked over: Is it possible that the technology you developed can be used in the intake rectification of internal combustion engines? Wen Xueyou had no choice but to temporarily turn his attention away from Yan Zhongcheng: Of course there is no problem in theory, but I remember that internal combustion engines do not rely on airflow characteristics like gas turbines. As long as sufficient air intake is ensured..." Of course this is generally the case, but if it is a diesel engine equipped with a sequential supercharging system, in some special cases it is still necessary to make some adjustments to the air flow, but it does not need to be as precise as your steam turbine..." ?Just as the two people were discussing the issue, Yan Zhongcheng was already standing on the podium. The conference room that had just been a little noisy became quiet again. I just listened to Jacky Wens introduction, and it was a great benefit to me After a brief opening remarks, Yan Zhongcheng directly praised Jacky Wen. ?However, from the latter''s perspective, this compliment seems to have a bit of a sinister and even gloating meaning. This made him frown. The uneasiness in my heart became more and more intense. "Compared to the GT25000, which is already very mature and has even been installed and tested on ships, our QC300 should be considered a new face to our colleagues in charge of power system research and development." Yan Zhongcheng said with a slight smile in his tone at the beginning. But at this point, the conversation immediately changed: However, judging from the performance indicators alone, comrades in the Navy may feel a bit familiar..." He said turning the PPT to the second page. The above is a quite detailed performance data table. The content is naturally what Chang Haonan said before. QC300 has not officially entered the research and development stage at this time, so it is naturally impossible to have such details as the power-speed curve. ?However, as far as the current situation is concerned, it is enough. Almost as soon as the form was released, there were several bursts of exclamations in the venue. Its not because of basic numbers like power and efficiency Although these data are equally dazzling, Chang Haonan had already drawn the pie when the Aerospace Power Group was established. It belongs to the part that everyone has been mentally prepared for. The key is the characteristics of this model. Size, weight, box-packed design, and some modular ideas. Even a layman can tell at a glance that the QC300 and core machine are structurally very different from the TF39 and have no technical connection. But for installation, use and maintenance, the shadow of LM2500 can indeed be seen. This is also the advice Chang Haonan gave a few days ago For the Chinese Navy, the LM2500 is the undisputed white moonlight as a ship power. ??If the acquisition channels were not locked, there is a high probability that there would be no GT25000 at all. Although the QC300 is not the LM2500, it can benchmark in all aspects and even surpass the newly installed LM2500+ in key indicators. Even from an emotional point of view, it has enough lethality. ?After deliberately pausing for a while, Yan Zhongcheng continued to enlarge his moves: "Every comrade should be aware that the turbofan 10 designed by the general manager of our office has been installed on the J-10A and J-11B models and has officially passed the production finalization at the beginning of the year. Calculated from the establishment of the project, it only cost a lot of money. to five years, so in fact, there is no need to worry too much about the development cycle of QC300..." At present, the first two Type 052C destroyers are close to being launched, but as far as I know, there is no clear plan for the construction of follow-up ships. Judging from the timetable, QC300 can fully catch up with the progress of follow-up ships and even follow-up models For the navy, this passage is absolutely lethal The speed at which China''s aviation equipment has been introduced over the years has been noticed by everyone. It can even be said that the reason why the Navy has the idea of ??continuing to improve the 052C is largely influenced by this... Or rather stimulated by this. ?Now that Yan Zhongcheng has spoken out directly, he has naturally gained a lot of recognition. As for some of the Spring and Autumn style of writing in this paragraph, such as "Turbofan 10 is responsible for the capture of 606" and other details, no one cares about it. Jacky Wen sat in the audience and adjusted his posture awkwardly. He knew that if he only judged from the current situation, then the opponent could only have some advantages on the scene at most. ?Just by mobilizing emotions and playing emotional cards, you can win for a while but not for the rest of your life. After all, when making the final selection, everyone has to come up with detailed technical solutions. ??But the words Yan Zhongcheng just wrote in his notebook made him unable to let go. ?Thinking of this, Jacky Wen moved his eyes away from the curtain in front and turned to the seat where Yan Zhongcheng had just been seated. ?The notebook was quietly placed on the small table next to it. At the same time, Yan Zhongchengs introduction also happened to come to this part. Actually, after our QC130 was finalized, we also learned a lot of lessons from it... ??He certainly couldn''t say that he had just asked Chang Haonan for temporary help two days ago, so he had to push the source of the idea of ????this technology to the reflection on QC130. ?However, this explanation is almost seamless, and it is impossible for people who do not know the inside story to find anything wrong. Including what Mr. Wen just mentioned, naval gas turbines need to work at a speed far lower than the design point for a long time, so special attention needs to be paid to the actual performance under low operating conditions... Hearing this, Jacky Wen''s heart tightened suddenly. He knew the point was coming. In order to fundamentally solve this problem, we plan to use multi-stage adjustable stator vane matching technology on the high-pressure compressor of the QC300 to ensure its stability and high performance under all operating conditions. The basic principle is to adjust the speed according to different speeds. Different stator blade attack angles and blade tip clearances are selected for the intake flow characteristics of the lower compressor..." With a "click-" sound. The pen in Xueyou Wens hand fell. ? He ??has now thought that the "xxxx" that he couldn''t understand before is actually the four words "adjustable static leaf". Obviously, I still greatly overestimated the negative impact of lack of experience on the other party. In other words, the other partys ability to self-correct is greatly underestimated. ?As for the imperfections of QC130, others have already begun to make adjustments before the trial of 054 has begun. It can almost be said that the celebration banquet and the reflection and summary meeting were held together. Such efficiency, and such execution... A sense of crisis suddenly came to my mind. What a formidable opponent He bent down to pick up the pen, thinking silently at the same time. (End of this chapter) Chapter 990 Adults have a choice Chapter 990 The adults choice is to have it all After all, it is not a formal selection, and there are not many experts in the field of gas turbines sitting below. Yan Zhongcheng cannot spend several hours explaining the technical points of aeroderivatives. ?Furthermore, he has not really started to take over the design work of QC300. Even if he wants to talk about it, he can''t say much at the moment. Even today, when the Turbofan 10 has been produced and finalized, Chang Haonan is still the only one who can truly understand the key points of the design of this model from the inside out. In short, it took Yan Zhongcheng about twenty minutes to introduce all the content he had prepared. As for the comparison results of the two models No results. The core purpose of todays symposium is still exchanges. ??The navy must first determine its next shipbuilding plan. As for the selection, that is a matter for later. ?Of course, everyone still has a balance in their hearts. Originally, after Jacky Wen finished speaking, most people thought that "the old model will still be reliable in a short period of time." As a result, quite a few of them have now become the new models seem to be quite stable Lets not say that the latter has the upper hand, at least the balance has begun to swing from side to side Intermittent cooling and reheating technology was mentioned on both sides. Even the content is similar, and the plagiarism check rate is suspected to be unable to pass the preliminary examination of the graduation thesis. And they are all painted cakes. The special design for stable operation under low working conditions was originally thought to be the trump card of 703. When I looked back, I saw a...shuriken was also pulled out from next door? In short, the styles are different, but the functions are similar. ?The conference room fell silent for a while. Everyone is thinking. For Jacky Wen, the only weakness that opponents can point to at present is the uncertainty of the research and development process. After all, the adjustable stator vane matching technology involves modifying the high-pressure compressor, and the risk is much higher than the 703 Institute''s solution of only adjusting the casing. But first of all, everyone is a decent person, and it is not good to be too aggressive in this situation. Secondly, someone else just came up with the example of turbofan 10. Its not quite the same thing, but its certainly very convincing. For the Navy and the participants responsible for the overall plan design, there are even more things to consider... Mr. Zhu, do you have a mature plan for the subsequent improvement of 052C...or at least an idea? ?Li Jiang, the head of the Naval Equipment Department sitting in the first place, looked at Zhu Fuying next to him and asked first. The latter is the chief designer of the two models 052B/C. Of course, he has now been transferred to the deputy director and chief engineer of the 701 Institute. Belongs to the successor of the old senior Academician Pan Jingfu. Originally there was ?Zhu Fuying exhaled a breath of helplessness, and then straightened her somewhat scattered gray hair: However, the design of 052C... is actually mainly ship-based equipment. It has undergone a major adjustment in the middle, which has taken up many projects planned to be deployed in the next upgrade. Even for the experienced Zhu Fuying, this situation is really rare - In terms of improvement, there are actually a lot of improvements that need to be made on the first two 052Cs. First of all, the new general-purpose vertical hair has a diameter of up to 850mm. Although the rows are more densely packed, it occupies a larger area than the previous special vertical hair that was specially used for Haihongqi 9. Secondly, the Z-12 planned to be put on the ship has a larger footprint (mainly wider) than the Z-9 and Ka-28. In order to ensure the speed, the 052 series has a relatively narrow hull width, so even if the single hangar is Setting it up on the left side still doesn''t leave much room on the other side. ?? And this "universal" vertical launcher is mainly for future war considerations. Currently, there is no second type of ammunition other than Haihongqi 9 that can be installed, and the Chinese Navy is in urgent need of means to attack the sea. Therefore, the two inclined quadruple anti-ship missile launchers in the middle and rear of the hull are still retained... In the end, we had to squeeze in two 8-unit vertical launchers between the anti-ship missile and the hangar, and they were not even placed on the whole ship. On the central axis, a 32+16 configuration was created. It is not very good in terms of firepower sustainability, and it is also very unfriendly to obsessive-compulsive disorder. Therefore, in the future, we must develop an anti-ship missile that is compatible with vertical launches, and remove the eight eye-catching YJ-62 missiles and replace them with vertical launchers. He even reserved space on the ship''s hull. ?However, this improvement is so small that it is hard to say whether it can be singled out as 052C(M). It is impossible to have a separate 052D model. ??But having said that, if you want to fundamentally solve the problem of insufficient space in the ship body, the amount of work will be huge... After organizing the language a little, Zhu Fuying continued to explain: "If the Navy believes that the current technical status of the 052C is suitable for batch construction as a main ship, then our next step is to fine-tune and optimize the surface equipment of this type of ship in batches to ensure that it can be built in the shortest possible time. Form combat effectiveness and mass production capabilities. "But if we can obtain more powerful power, we can also consider further modifications based on the current hull, reducing the aspect ratio from the current 8.6 to about 8.2, and correspondingly increasing the displacement to the 8,000-ton level. In this way It can completely solve the problem of tight space on the ship body, and even reset the double hangar..." Obviously, as a purely technical person, he did not want to show too obvious tendencies, so he introduced the two current ideas. Would the technical difficulty of the second option be too great, I mean... if the hull is adjusted? As the person in charge of the equipment outlet, Li Jiang is naturally interested in more advanced options, but at the same time he also has to consider risks. The technical difficulty is actually not bad. Zhu Fuying replied: Although 052 is a series, from the earliest Type 052 to the current Type 052B/C, a large-scale change has been made to the hull in the middle, so should we change it again... We also have experience. "But considering that this change is not simply amplification, but also involves internal structural adjustments, the workload will indeed increase a lot, and the research and development cycle may be longer. At least it cannot be made and modified at the same time. I am afraid that there will be a stop in the middle... Uh... about three or four years..." In fact, he originally wanted to refer to the development cycle of 052B and say it would be six to eight years. ?But after thinking about it later, I realized that the conditions now are completely different from those ten years ago. ??If the gas turbine itself can be developed in time, then a single hull will not take so long anyway, so I changed my mind midway. And this seemingly casual change of words had a huge impact on Li Jiang''s heart. It is perfectly acceptable for the Navy to wait three to four years. ?According to the plan, even if the 052C continues to be built, it will have to wait until the GT25000 is fully domestically produced before starting to increase production. It will probably take about two years. ?Now as long as you wait a year or two more, you can get a completely new and upgraded model. Let''s make good money with blood. Just like this, the choice of introducing and localizing the GT25000 back then seems a bit clownish... To undertake this task, we even built an upgraded 703 institute based on it... ??If Chang Haonan saw this situation, he would definitely exclaim NTR in his heart. ??Although Li Jiang does not have this concept, he also feels that it does not seem appropriate. ?He turned his head slightly and glanced at Jacky Wen, who had a somewhat unpleasant look on his face. ?At this time, another officer next to him suddenly interjected and asked Yan Zhongcheng and Wen Xueyou on the other side: Mr. Yan, Mr. Wen, after I just listened to your introduction, I have an immature idea. For a time, everyone''s attention was attracted to him. The plan proposed by Mr. Yan is to modify the design of the stator blades of the high-pressure compressor, while Mr. Wens plan is to open the casing at the leading and trailing edges of the moving blades, but the ultimate goal is to achieve a very Design point performance optimization. Thenis there a possibility that you two can combine technologies and jointly develop a model with better performance After listening to his suggestion, the two principals did not immediately express their opinions, but just lowered their heads in thought and remained silent. But Li Jiang''s eyes lit up instantly. (End of this chapter) Chapter 991 QC300, project approval in April! Chapter 991 QC300, project approval in April! In fact, from the very beginning, there were no regulations saying that naval gas turbines must go through a bidding process, then model selection, and finally the winner will be decided among the two models. Just by chance, we now have two suitable gas turbine models on hand. QC300 obviously has stronger performance and development potential. However, the localization of GT25000 has been promoted for almost ten years and has consumed a lot of manpower and material resources, so it is impossible to just throw it away casually. If we put it in developed countries, this is actually not a problem. But China does not have a large enough market to accommodate two competing products at the same time Civilian ships do not need to be quiet and fast to start, and expensive gas turbines are rarely chosen as power. Until sufficiently reliable and low-cost sources of oil and natural gas are available, it will be impossible to use gas turbines to replace coal-fired boilers for power generation on a large scale. As for being used as an energy source to drive compressors or pumps in the industrial field... The prospects are very good, but currently it can only be considered a niche use. So, everyone unanimously took aim at the destroyer''s power system. But choosing one now almost means giving up the other. Its not just as simple as giving up a model. ??It will also cause a huge blow to the technological development route behind the model. If these two technical lines can be retained through cooperation, it will obviously be a win-win choice. ?GT25000 is just not suitable as a ship power, it is not really very backward. With the development of the national economy, if the demand for industrial gas turbines increases in the future, it can still be used to its advantage due to its relatively low cost and the fact that Soviet products are generally not very picky about fuel. ? And even from the perspective of the navy, retaining the gas turbine research and development capabilities of ship systems will leave more paths for the future. Only when the number of Party B is greater than or equal to two, Party A can enjoy the pleasure of being a father. ?However, Li Jiang did not reveal his intention immediately, but made a roundabout way first: As for specific technical issues... I think its better to leave it to professionals to make their own decisions. ??As he spoke, he glanced in the direction of Yan Zhongcheng and Wen Xueyou, paused briefly, and then continued: Of course, if the combination of the two technologies can really improve the final performance of the product, then we as users will definitely be happy to see the results. In addition, I remember that Mr. Wen just said that the 703 Institute has completed a principle prototype of intercooling and heat recovery, and Mr. Yan is preparing to build a two-dimensional component-level model including the intercooling cycle. I wonder if there are parts that can complement each other in this aspect? In fact, since the idea was first proposed, both Yan Zhongcheng and Wen Xueyou were a little tempted. For the former, cooperation with colleagues in the shipbuilding industry is itself one of the options that Chang Haonan has considered. After all, Institute 606 currently has three ongoing projects, namely Turbofan 10H, M88-3 and SeA650, plus a fourth-generation engine, which is the pre-research of Turbofan 10G. ?Although the plan for the subsequent Turbofan 20 is led by Hao Jing, 606, as the big brother in the aviation development field, certainly cannot not contribute at all. The resources and manpower that can be allocated to QC300 are already quite tight. For Jacky Wen, if he insists on carrying out model selection, the result can only be total victory or total defeat. But 703 Institute is not as big as the other company, and GT25000 is a project that they must ensure to be foolproof. If orders from the navy are completely lost, development will be very difficult in the next few years or even longer. ?In this case, a safe option that although it will not win, but will certainly not lose, is undoubtedly more tempting than direct stud. Besides, looking at the current posture, if this shuttle really goes down... The winning rate may not be optimistic. ?However, it is one thing for them to be tempted, and another thing to actually agree. Although cooperation does not mean that two models are merged into one, in any case, this is a cross-group behavior, and it also involves a rather complicated issue of interest distribution. It is by no means a matter of blending between the two chief divisions. Therefore, it is impossible for either of them to express their stance. Director Li. ??It is definitely not an option to remain deadlocked like this, so in the end, Yan Zhongcheng broke the silence: Im afraid a final decision on this matter needs to be made at the group level, but after I return, I will report the thoughts of my naval comrades as soon as possible. From a personal perspective, I think cooperation is feasible. Jacky Wen, who was next to him, immediately made the same statement: I personally think that cooperation is feasible. After I go back this time, I will report the situation and my personal opinions to the group for reference... After the two-day seminar, Yan Zhongcheng immediately found Chang Haonan and briefly described the meeting to the latter. This naturally includes the two improvement plans proposed by Zhu Fuying for 052C This is what Chang Haonan specifically told Yan Zhongcheng to remember before. It seems that the navy and comrades in the shipbuilding industry still have full trust in us..." Chang Haonan was in a good mood with his curiosity satisfied: Since Mr. Zhu can propose the second major modification plan, it shows that they have already considered the possibility that the QC300 gas turbine can be installed on ships and put into use in a short time. This is a major benefit to us. ? Zhu Fuyings two plans, the first is basically a replica of the 052D from the previous life. Even the power is the same two GT25000 plus two license-produced MTU956. There is nothing to say. But the second one is really in line with Chang Haonans wishes. The displacement of 8,000 tons means that the cost will not skyrocket. However, after improving the aspect ratio, the space and seaworthiness of the ship have been greatly improved. As for motivation ?At a certain moment just now, Chang Haonan even thought of the relatively radical alternating combustion-burning drive form. That is, two high-power QC300 models are used as propulsion gas turbines at high speeds, and two low-power models are used as cruise gas turbines at low speeds. Unfortunately, cruise gas turbines only require a total of 8-10 MW of power, so even a single 13 MW QC130 is still too big. ? So there is a high probability that we will still have to go back to the alternating diesel-fuel system of two QC300s and two MTU956s. "Actually... they mainly trust you, Mr. Chang." Yan Zhongchengs words are absolutely sincere: The QC300 itself has not even been approved yet, but the results of the Turbofan 10 are real and can be seen by everyone. Dont put the credit on my head either. Chang Haonan waved his hand: On the other hand, if there were no QC130 Zhuyu in the lead, which has successfully passed the test and been installed on the 054, others may not be optimistic about the technical route of aeroderivative gas turbines. After all, before that, the performance of several aeroderivatives produced by our aviation industry system was generally not mentioned, and the research and development process was... quite tortuous. The "more tortuous" models in his words are mainly the turbojet 6G, which was intended to be used as a ship power source but failed, and the Spey Aircraft Diesel, which was stillborn. It can be said that if the Turbojet 14 had not entered Lin Qing''s sight at the very right time, thus giving birth to the QC130, the 606 Institute might not even be able to get tickets for naval equipment selection. After some mutual compliments, Yan Zhongcheng returned to the topic: "Mr. Chang, please take a look...the cooperation proposal put forward by the Navy..." As long as the model is mainly QC300, then I have no objection. Chang Haonan immediately replied: Of course, a formal decision may require a meeting of the leadership team to make, but the result should not be in any suspense... It mainly depends on whether the other party is willing to join our R&D team. Besides, since we have to cooperate with others, we cant continue to be anonymous. We must have a formal project anyway. Mr. Yan, please prepare relevant materials when you go back. After I am busy in March, I will try to complete the QC300 project approval work before the end of April! (End of this chapter) Chapter 992 We went up with A! Chapter 992 Lets go up! For Chang Haonan, this symposium held by the Naval Equipment Department was actually an unexpected episode. Fortunately, according to the 2002 work plan proposed at the end of last year, the QC300 project was supposed to be launched this year, so it would not disrupt too many arrangements. ?Yan Zhongcheng may not be the best in ability, but he is experienced and reliable. It is generally reassuring to entrust him with the project preparation work. As for what he told the other party that he would be "busy in March", it was naturally the Numerical Algorithms and Computational Science Conference. In fact, before this, Chang Haonan never thought about how much influence this matter would have. ? He ??first came up with the idea of ??holding an academic conference, which was similar to the idea of ??Yuan Yaxiang and others who wanted to establish JCAS, which was to hold an academic conference focusing on China. Taken more broadly, it can be regarded as breaking the Wests monopoly on academic evaluation rights. But a more practical idea is not to steam the steamed buns to get a good reputation. By the way, we will use the conference format to see if we can discover, or to put it bluntly, win over some researchers like Professor Harold Huang who have real talents but have been buried. However, he still underestimated himself a little, or underestimated the influence of the entire numerical computing industry in recent years. ?After the conference was publicized, the academic and business circles responded so intensively that the relevant departments did not need to make special statistics. They just intuitively discovered that the number of people applying for Chinese visas had increased abnormally. ?Large-scale foreign-related activities require registration and application, so as long as you compare the date of visa application and the registration status, it is not difficult to find out... It turns out it''s you who is causing trouble! ?So, the day after Yan Zhongcheng was sent back to Shengjing, a slightly surprising person came to his door. ?Of course, I didnt find the Torch Laboratory directly this time. Rather, we met at the headquarters of the Aerospace Power Group as usual. Hello, Mr. Chang, I am the person in charge of Beijings external liaison department, Zeng Jinsong, just call me Lao Zeng... ?As soon as the other person entered the door, he introduced himself quite familiarly, and even used a title to invisibly shorten the distance between the two. As expected of the external communication system. UhDirector Zeng, why are you here this time? ?Although Chang Haonan has seen a lot of big scenes, he still can''t stand facing this kind of enthusiasm. ?The two of them had just met for the first time, and they were not familiar with each other at all. What''s more, it''s better to call your job when you''re working. Thats right, Mr. Chang. Zeng Jinsong, who seemed to have a hot face but a cold butt, showed no embarrassment at all, and followed Chang Haonan''s rhythm and almost seamlessly switched to work topics: "I received a notice from my superiors a few days ago that your organization will organize a numerical algorithm and computational science conference involving a large number of foreign guests at the end of March, so I came here to ask if you need help from our external relations department in organizing and preparing? " Hearing this answer, Chang Haonans mind was a little confused for a moment He had actually thought about asking the relevant departments in Beijing to come forward to help coordinate some issues at the organizational level of the conference. Mainly providing food and accommodation for a large number of contestants and participants. However, it was later properly resolved through the help of brother units within the Science and Technology Commission system, so it was settled. In the end, I didnt take the initiative to mention it, but now the other party is rushing to help. Is this the treatment of key regional enterprises? Love it, love it. ?However, its normal to have second thoughts. The external relations system is not a diplomatic system. It is a unit with somewhat awkward functions. It doesn''t matter if the staff below are free, but being thrown into this position is basically equivalent to sitting on the bench. Now it is very easy to catch up and be able to play a role, of course you have to be more proactive. ?This paragraph of thinking is quite long, but it only takes a second or two to go through it in your mind. ?However, the hesitation for a second or two looked to Zeng Jinsong opposite, as if Chang Haonan had concerns about it. Therefore, before the latter could respond, he quickly added: Mr. Chang, please rest assured that we will only send out grassroots management and service personnel. I will personally be responsible and direct all the communication with the organizer, and I guarantee that I will never interfere with your specific work. Looking at this attitude, the words "don''t talk, just work" are written on his face. Chang Haonan suddenly felt guilty as if a landlord hired long-term workers. But the feeling of guilt only lasted a moment. No matter how idle the external relations department is, it still has more experience in dealing with foreigners than Torch Group. Chang Haonan didn''t take the initiative to contact Beijing for help before because he thought it was unnecessary and troublesome. But now that the other party has taken the initiative, and it''s still for nothing, there is no reason to refuse. Now that Director Zeng has said this, it would be a bit unreasonable for me to refuse ?His answer almost stunned Zeng Jinsong who was opposite him ?We took the initiative to provide help, but it feels like you have suffered a big loss... ?Of course, this is just a rant in my heart. Letting the External Liaison Office assist Torch Group in preparing for this conference was a decision made by the superiors in Beijing. ??If he can''t help with this today, I''m afraid he will be criticized when he goes back... at the same time. Across the ocean, California. In a computer room at Stanford University. The question-answering process of the three participating students has come to an end. In fact, they had completed testing the engineering documents about 20 hours ago, and now they were just checking and filling in the calculation instructions based on the calculation process. "Lemmy, do you think... we need to show these results to Professor Jameson again?" ?Hermia Moreno rubbed her temples, which were swollen from staying up all night, and asked the captain Lyles Connor who was typing on the keyboard quickly next to her. "Need not." The latter replied almost without thinking: "There are two questions in total, one of which we have almost done the original question before, and the other one is almost entirely a test of the basic level of CFD. The software we use also has algorithmic advantages..." If so many favorable factors are added together, and we still need to ask Professor Jameson to help check the results to ensure that we pass the preliminary round, then I dont think it is very interesting to participate in this final. He stopped what he was doing, shrugged, and turned to look at Hermia beside him: Im done. Ive also checked it and found no problems with the previous part. ??The third member, George Forger, who had been silent just now, also raised his head from the computer screen. The three of them looked at each other a few times. They all saw the exhaustion that could not be concealed on each other''s faces. Although the questions are not difficult for them, the workload is still substantial. The code that needs to be written and the text that needs to be edited will not automatically appear on the screen just because the question is simple. After a moment of silence, Captain Lyles finally made the decision: "Organize the project files and documentation, then package and upload them." The competition only stipulates the latest submission deadline, but does not impose restrictions on "early submission". In fact, in the case of the same score, the ranking will be based on the order of submission. Hence, when you are sure there is no problem, uploading the results as soon as possible is the right choice. Arent you going to check again? ?Hermia actually knows the truth, but the more people reach this "last tremor", the more they worry about gains and losses. No need. ??Liles shook his head and began to sort out the contents of the folder: It is almost impossible to eliminate all errors in a large document in a short time, especially since the three of us are authors, many places are easy to overlook. And the core of this competition is that algorithms are not literature. As long as there are no problems, even if there are some spelling or formatting errors, it will not affect the final result. When it breaks, it breaks, which is why he can become the captain. And Hermia didnt really want to submit, so she didnt continue to refute. As for George, who didn''t talk much to begin with, he was already slumped in his chair, looking like he was about to fall asleep. ?About half an hour later, Lyles finally entered the official website of the competition, then selected the compressed package and clicked submit. The moment he clicked the mouse, the three people in the computer room breathed a sigh of relief almost at the same time. There is quite a feeling of "the exam is over, no matter what the score is, but I am finally relieved". ?Of course, they cant go to rest right away Despite being compressed, the file size is still quite large. So the upload speed is not very fast, and it is easy to fail in the middle. Must be sure to upload successfully. ?However, after the breath they had been holding back was relieved, the three of them almost immediately felt sleepy sweeping over them. In order to cheer up, Lyles took the initiative and said: I dont know whats going on with the group next door He was referring to three people from Santa Clara University who also received pre-game guidance from Professor Jameson. I met someone from their group when I was buying a sandwich yesterday. ?Hermia braced herself: At that time, their progress was about 12 hours slower than ours, and they were still dealing with the last part of the water flow model problem, but I estimate that they should be finished by now and start writing calculation instructions... The efficiency is quite good... After all, their school was not good at this in the past. It was equivalent to just receiving a short-term intensive training class and achieving this level. ??Liles gave a very high evaluation. I think not only them, but all groups using COMSOL software this time will probably take advantage. ?At this time, George, who was sitting on the chair next to him, also joined the conversation: "Even if you don''t fully understand many aspects, there are presets in the software. You can just fill in the data and do it. Although the effect is definitely not the best, at least it will not calculate divergence and can guarantee a result. This is Its already better than many groups. After all, COMSOL intends to use this opportunity to promote its software, otherwise it would not have come to us specifically, and said that if it can participate in the finals, it will bear all the expenses... Dont tell me, I havent noticed before that their software is so easy to use. I can definitely give it a try when doing research in the future But we must also consider that Torch is about to release a new version 2.0, so its hard to say what it will look like by then. Thats right As the three people chatted, the file upload progress bar slowly came to an end. A dialog box pops up on the screen: There are only two sentences in it: Upload successful. Upload order: 77 Seeing this result, Lyles''s spirit was refreshed: Yes! He originally wanted to jump up to celebrate, but his legs were really weak, so he had to shake his fist from his seat. ?In this kind of competition, many contestants will choose to submit their papers in advance. So those who can produce complete results like them and still rank in the top 100 are actually extremely efficient. Lets go find the professor and have a good rest for a few days ??Liles stood up holding on to the armrests of his chair, then led two teammates and strode past Professor Jameson''s office... (End of this chapter) Chapter 993 The situation is not a small good, but a great one Chapter 993 The situation is not a small good, but a great one Facts have proven that, after excluding some special outliers, the overall level of the best students in the world is actually about the same. That is to say, after Lyles Connor and three other people uploaded their answers, the backstage of the Numerical Computing Competition began to receive a large number of packaged files submitted from all over the world. ?According to the competition settings, these project documents will be checked by the referee team, and after confirming that the project documents are complete, they will be submitted to a supercomputer for parallel processing. The final score is comprehensively judged by two indicators: calculation time and calculation accuracy. There is no tie in the competition. If the scores are the same, the team that submitted the answer earlier will be ranked higher. Special guests, as supervisors, have the right to randomly select answers that have been scored for review. ?Of course, since the conference is hosted in China, the worlds largest and highest-level numerical computing business team is also in China. So the vast majority of the members of the referee team are actually from the Numerical Computing Business Department of Torch Group. ?So, on the deadline for uploading answers, Chang Haonan also came to the computer room specially. Since Liu Hongbo was still in France at this time, the person responsible for managing the entire referee team was Meng Weizheng, the deputy manager of the Numerical Computing Business Department. Mr. Chang, so far, we have received a total of more than 700 answers from 100 schools and research institutions, and a total of 358 answers from 67 institutions have been judged valid and entered the scoring process, ??Even without Chang Haonan asking questions, Meng Weizheng, who saw his boss appearing, quickly stood up from the computer and reported the current status of answer submissions. A pass rate of just over half Chang Haonan nodded with satisfaction: This ratio is not bad. In fact, even though he has extracted three relatively simple questions from the question bank, he is still worried that the difficulty is too high or the evaluation criteria are too strict, resulting in too few answers that can pass the completeness check. ?But now it seems that he still underestimated these juniors who are still in school. ?Of course, the "secret efforts" of their teachers are certainly indispensable. ??But no matter what, if there is a live final later, it will not be cheating. Mr. Chang, it should not reach 50% in the end. ?Meng Weizheng suddenly explained at this time: "There are still nearly 10 hours before the deadline, so some answers will be submitted later. Although the number will not be large, most of the project files uploaded at these stuck points cannot even pass the preliminary screening, so it will be pulled A certain lower pass rate ?This is reasonable. Since the final score is obtained by adding the two highest scores, most of the participating groups directly gave up on one of the questionsmostly the first or third question. In this way, the two questions basically require 2-3 days of work. Coupled with inspections and documentation, it should be over in 4 days at most. Unless there are any special circumstances, if you wait until the last day to submit your application, there is a high probability that there will be problems. Either there was a mistake in the direction, or it was simply not completed. It doesnt matter...it doesnt affect the overall situation. Chang Haonan waved his hand: There can be 70 groups and 210 people participating in the final, which is large enough..." ??After all, even the Beijing Foreign Liaison Office has taken the initiative to ask for help. If in the end it is found that there are only three or two big cats and kittens, the scene may not be very pretty. What about the rating results? After a little preparation, Chang Haonan finally asked what he was most concerned about. The three questions in this simulation are not very computationally demanding. Even for supercomputers in the early 21st century, it is impossible to run them to full capacity. Therefore, after the project documents are reviewed, the scores will be determined almost within an hour. Being beaten out. So although the submission deadline has not yet ended, the results of most participating groups have actually come out. It will just be announced together in the end. "this" ?Hearing this question, Meng Weizheng''s face froze slightly: "Mr. Chang, currently the team from Stanford University ranks first in overall score. Although the accuracy of the final result is slightly lower than the second place, the calculation efficiency is much higher. The final score according to the standardized scoring rules is 107.8 points , which is nearly 4 points higher than the second place team from Beijing Hang University in my country. The advantage is quite obvious..." Because it is an engineering competition, the weights of the two indicators of accuracy and efficiency are not linear. Simply put, after the accuracy reaches the basic requirements, further improvement in accuracy will bring little improvement to the score. To some extent, this is also part of the content of the competition. Stanford University In fact, who won the first place in the preliminary round, or even who won the first place in the final, was not the issue that Chang Haonan wanted to pay attention to. He just vaguely remembered that Professor Anthony Jameson, who was employed by COMSOL, seemed to be from Stanford. ??If this is the case, then the first-place team most likely used COMSOL products. And this is exactly what he expected. As the saying goes, if you want to restrain, you must first advance. ?He has already dug the pit for the finals. The higher the opponent flies in the preliminary round, the harder they will fall when the time comes. ?However, in Meng Weizheng''s eyes, this scene was different. "Mr. Chang, when we announce the results of the preliminary round, can we consider not publishing the scores...at least not according to the overall ranking, but instead publishing the scores according to different schools?" ?He quickly suggested. In terms of scoring, there is definitely no room for maneuver. But there are thousands of participating teams. As long as the competition does not directly release the overall ranking, it is actually difficult to know who has the highest score. ?In this way, the results of the Stanford group at least do not seem so eye-catching. Huh? Chang Haonan was stunned for a moment after hearing this, and then he realized ?The other party may have misunderstood and thought they were annoyed by watching a foreign team take first place in the preliminary rounds. ?So he quickly waved his hand: Its not necessary, just make it public as you want. Moreover, not only the scores must be made public, but also the scoring sheets, project documents, documentation, and the names, nationalities, and schools of the contestants must be made public. Since we are holding a competition, we cant do that secretive thing. The result will be whatever it is, let the whole world watch it together! These words were so righteous that Meng Weizheng was stunned for several seconds. Then, he realized a more serious problem: Also, Mr. Chang, the results submitted by this group...were not our software, but COMSOL Multiphysics. If the project files were also made public..." Finally determined the information he wanted, Chang Haonan, who succeeded in his plan, almost laughed: It doesnt matter, just do as I say With Chang Haonan''s "protection", the results of the competition were naturally released on schedule without any glitches. Except for those groups that have given up on the finals, all the contestants who are still thinking about it are eagerly looking forward to this moment. Even more enthusiastic than when I first read the question. ?So much so that even the server specially rented by the Torch Group experienced a momentary lag. ?It is precisely because of this that Lyles Connor and the others, who moved a little slower, became the first batch of lucky people to successfully enter the web page. Look for a school that starts with S ?Hermia Moreno said eagerly from behind. According to common sense, since it is the preliminary round of selection by school, the results will definitely be announced according to the school. Sure enough, hundreds of densely packed school names were loaded on the page according to their initial letters. A few people quickly found the word Stanford. After clicking in, the names of the three of them were listed first. Even though they had expected this, the three of them couldn''t hold back their excitement when they actually saw the results. ?Hermia subconsciously covered her mouth to prevent herself from screaming, while the other two people were already hugging each other tightly. Even Professor Jameson, who was sitting a little further away and had always had a calm temperament, showed a satisfied smile: Not bad, I did a good job in the preliminary round ?And soon, they discovered that there was more information on this page. ?In addition to the common things such as player names, scores, and scoring tables, there is also TotalRanking at the end of the table. Overall ranking. The ranking and TotalRanking of their group are all 1. Furthermore, the color of TotalRankings words is different from others. Obviously a link. The kind that can be clicked in. "etc" George Folger was the first to discover this detail: Overall ranking 1will not be He looked at the other people next to him in disbelief. These two words combined with a number seem to have only the meaning they imagined. George reached out his trembling hand to the mouse. After trying several times, he finally clicked on the link. Soon, the browser jumped to another page. Sure enough, it is the total ranking page. The first one is still the three of them. "oh-" The entire office was instantly filled with almost boiling cheers. Even Klaus Hertz, who had been silent just now, could not hide his excitement. He pinched his jaws hard to control himself from laughing out loud Because he observed that not only the first place. Among the top ten alone, the project files uploaded by the third, fourth and ninth projects are marked with a .cmph extension. That is to say, COMSOL Multiphysics was used as a calculation tool in the competition. Win! Winning money! (End of this chapter) Chapter 994 Preparation for the finals (new January, please vote for me) Chapter 994 Finals Preparation (New January, please vote for me~) ?In Heltzs original vision, although the competition title was very beneficial to his own side, after all, from the referee to the organizer, to the co-organizer and the witness, all the units are members of the Torch Group. What can you do to compete with others? Especially in a game like this where the scoring method is extremely complex. Just a little modification in any detail is enough to change the entire result. ?Its not like they havent done this kind of thing before. The experience is so rich. Hence, Hertzs best expectation at the beginning was that there would be about a dozen teams using COMSOL software to represent their own schools or research institutions in the finals As long as you can show your own banner in the competition held by the opponent, you will be considered a victory. ??However, the final result was a huge blow to him. There are two teams of our own people in the first three. Four teams among the top ten are from our own team. As for whats next Sorry, the overall ranking is presented in ten groups on one page. In other words, most people will only pay attention to the first page and the page with their own team. This is no longer a banner. This is to plant the flag in the opponent''s base camp. ??Although it can be seen that the vast majority of contestants choose to use TORCH Multiphysics, COMSOL has achieved a balance in the high-end rounds with a relatively small sample size. To a certain extent, it can even be said to be an advantage. On the contrary, it further illustrates its excellent performance in the CFD field. ??Including the group from Santa Clara University next door, although the results were slightly lower and to a considerable extent improvised, the overall ranking still reached 31st. ??Also without any suspense, he represented the school and entered the finals. And, not only that. The rules of the competition do not place many restrictions on the calculation methods and calculation tools of the participating teams. ?There are still almost three weeks until the finals. This means that some teams may temporarily decide to change the calculation software after seeing the preliminary results. Or at least be more prepared. So by the time of the finals, the number of teams in the COMSOL camp is likely to further increase... Even...occupied the mainstream! ?Thinking of this, Hertz seems to have already seen the day when he will step on ANSYS with a fist and a torch, get a promotion and a salary increase, and reach the pinnacle of his life. I think its okay to celebrate. Even though he was trying hard to restrain himself, his voice still trembled a little. Even Professor Harold, who has always been serious, did not refuse this time for the first time. On the contrary, it was the three students who showed amazing calmness. I think the focus right now is still preparing for the finals. ?Lyles Connor clenched his fists. It was obvious that he had not gotten over the excitement just now, but he still tried his best to appear calm: A high ranking in the preliminary rounds will actually bring greater pressure to the finals. "Moreover, this result still takes advantage of the questions to a large extent. We cannot expect that we will have such good luck in the finals, so we still need to increase training on special types of questions during this period, such as the first question in the preliminary round If you encounter such a particle flow problem in the finals, you won''t have the opportunity to choose two out of three..." There is also the issue of combining computational fluid dynamics and computational structural mechanics, which was also a shortcoming in our previous training. Although it is impossible to deal with it due to the difficulty of the preliminary round, it is completely uncertain in the final..." ? Connor''s rationality also obviously affected his teammates. Hermia and George also expressed their stance and refused to open champagne at halftime. ?Of course, Hertz cannot be blamed for this. As a representative of COMSOL, his interests are not exactly the same as those of the contestants For Heltz, having so many teams reach the finals with such a high ranking is already a win. ?Even if the results of these teams in the finals are not ideal, that is still an issue that the participating teams and schools must consider. ?Even if I exhaust my lifelong imagination, I cant imagine how I could lose. So in his opinion, celebrating now is not a half-time champagne at all. Of course, Herz is not a person without eyesight. Since someone had already expressed his refusal, he did not insist anymore. Hence, I started thinking about how to use this time to build momentum. After all, being able to gain an advantage on someone else''s territory is definitely a once-in-a-lifetime opportunity, and you must seize it... at the same time. Compared to the jubilation at Stanford, the atmosphere here in China seems a bit subtle. Although the influence of this competition has not yet extended to the melon-eating masses, there is no good media to report such as "This humiliating defeat has become a hot topic in the numerical computing community recently...". But pairs of eyes in the industry are watching. You must know that in order to avoid possible intellectual property issues, many companies will buy all the mainstream numerical calculation software on the market. ??As long as COMSOL can really show outstanding performance in the CFD field, there will definitely be many users willing to try it. Although Torch Group has usage habits and compatibility barriers accumulated over the years, it will not lose much of the market immediately. However, for high-tech products such as computer software tools, performance is ultimately fundamental. Mr. Chang, should we consider making some special changes in response to the situation at COMSOL during the final question setting process? ??Although Song Jingming knew that his boss had planned this for a long time, as a non-technical person, he could not understand the turning point of this plan and how exciting it could be, so he was very panicked at this time: Im worried that if we cant give the other party a strong enough counterattack, it will affect users confidence in our products Before Chang Haonan could speak, Meng Weizheng, who was in charge of the referee team, also expressed his agreement: "Yes, Mr. Chang, because the tiebreaker rules are clearly written and a lot of content is disclosed after the game, what we referees can do is limited. For example, the group ranked first in the preliminary round has an advantage of more than 3 points. It is difficult not to Pull it back without letting people notice it. In comparison, COMSOLs software has poor processing capabilities for problems other than CFD. Is it possible to consider setting up some multi-method linkage problems in the finals to offset their advantages in CFD? Hearing this, Chang Haonan frowned, fearing that the other party would be too clever to make things worse for him, so he quickly warned in a serious tone: I stress again, your referee team doesnt need to do anything, just follow the scoring rules and ensure fair and just scoring! As he spoke, he knocked on the table for emphasis. Seeing this, Meng Weizheng had no choice but to nod, promising that nothing would happen. As for the topic of the final Chang Haonan paused for a moment: "The theme of our conference is CFD, and in the finals, every move we make will be magnified exponentially. If, as you said, in order to offset COMSOL''s advantages in CFD, we will focus on other fields. , cant other experts participating in the conference see it? "But" Meng Weizheng obviously wanted to say something more, but was interrupted by Chang Haonan waving his hand: "Although the specific topic of the final cannot be made public yet, I have communicated with several special guests who came to China in advance about the direction of the topic. It is about the calculation of two-phase flow of polymer melt, a 100% CFD problem, so There is no need to say more about this matter. In fact, Chang Haonans initial plan was to simplify the Falcon Zs wing optimization design problem and then apply it. After all, it was through the engineering documents inadvertently sent by Dassault that he discovered that COMSOL had fatal flaws in the calculation of the viscoelastic constitutive equation. ?But after thinking about it carefully, I felt that the Falcon Z project involved too many commercial secrets, and even if it was simplified, it might not be safe, so I changed my mind and "customized" a new question for my opponent. The reason why two-phase flow is chosen is that the finite volume method is not good at dealing with systems with drastic changes in interface topology. Two-phase flow is a typical representative. However, for general gas and liquid two-phase flows, highly complex viscoelastic constitutive equations are rarely used. Hence, he specially selected two relatively rare polymer melts as calculation objects. A system that is not good at and superimposed algorithm defects. It can be said that it was targeted deliberately. From the outside, this is a standard CFD problem. But in fact, it can directly hit the Achilles heel of COMSOL. Even a Achilles heel that they themselves dont even know about Chang Haonan has tried COMSOL several times himself, and the result is 100% divergent, and it is absolutely impossible to obtain a valid numerical solution. Its not just that. If you are unlucky, even the software may crash. In short, I kept enough camera footage and just waited for the other party to perform on stage... (End of this chapter) Chapter 995 Small wins, medium wins and big wins Chapter 995 Small Win, Medium Win and Big Win Due to the annual conference, the main nodes of major projects are rarely set in mid-to-early March. After all, many responsible persons and technical backbones are representatives attending the conference, and it would not be good to leave them behind. ?Hence, most of March passed quietly in the midst of relatively dull daily work. Until the end of the month ?According to previous arrangements, the Numerical Algorithms and Computational Science Conference will be held on the last weekend of March, that is, on the 30th and 31st. Hence, the finals, which serve as a warm-up for the conference, naturally have to start two days in advance. Considering that it is impossible for players to compete as soon as they get off the plane, they have to get rid of jet lag and adapt to the venue equipment, so the entire conference will enter the process about a week before the official opening. Logically speaking, whether it is a competition or a conference, the influence is mainly concentrated on the industry. Even if it is earth-shattering in the industry, it is rarely noticed by the outside world. But this time the situation is different. On the one hand, this is the first time that a Chinese company has taken the lead as an industry leader. Whats more, its not a traditional industry that tells stories and sells concepts, but a serious high-tech industry. ?On the other hand... It is Chang Haonan himself. This is the first time he has participated in an event that is completely open to the media since he solved the Poincar Conjecture. Therefore, even though many media outlets did not even know what the term "numerical algorithm" meant, they still flocked to the capital with the idea of ????making a three-pointer. In short, when Chang Haonan appeared at the conference venue for the first time on March 24 to inspect the preparations as a special guest and sponsor leader, the situation at the scene was a little out of control... In fact, originally, there was no special interview session arranged for this day, but according to regulations, during the preparations for the meeting, media who have passed the security inspection and qualification review can enter the venue to report on the preparations for the meeting, and conduct interviews with consent. staff. ?So, while listening to Song Jingmings report, he walked around a corner and entered the central conference hall. He unexpectedly met a group of people wearing media badges. Among the crowd opposite, several people clearly recognized Chang Haonan''s face immediately, so they subconsciously stopped. Others were affected by this and quickly noticed this. Is that...Mr. Chang of Torch Group? ?Faced with the news that suddenly hit their faces, some people were not sure. But no one answered his question. Because everyone has already rushed forward... Even though everyone who appeared here had passed the security check, this posture still frightened Zhu Yadan and the other two security guards. Fortunately, Song Jingming stepped forward in time and stopped the charging crowd two steps away. Mr. Chang, what are your expectations and wishes for the finals of the Mathematical Calculation Competition that are about to begin? The first reporter even misremembered the name of the competition, but at any rate he asked questions related to the topic. And Chang Haonan naturally responded in a formulaic way: As the first competition for students in the field of numerical computing, I hope that the contestants can perform well and even break through their original levels. After all, for any industry, young people represent the future Hearing this answer, Song Jingming couldn''t hold it back and quickly lowered his head, so that his smile was not noticed by the reporters opposite. As the organizer of the competition, he can see the personal information filled in by the contestants. ??Although as an international event, there is no effective way to determine the age information of the players, most people will not fill it in blindly. According to statistics, more than one-third of the finalists are actually older than Chang Haonan... So its hard to say who represents the future. After someone started, the questions that followed became more and more free. Mr. Chang, it is said that Torch Groups competitor COMSOL performed very well in the preliminary round. Do you have any measures in the final? This obviously requires a lot of work. Ahemthere is nothing to target, and there is no need to target. Chang Haonans answer highlights a great point: Numerical computing is a large and open market. We welcome all competitors. It is precisely because of their existence that this field has developed rapidly in recent years... Professor Chang, there are many rumors from the outside world that you and Professor Perelman may be awarded the Fields Medal together at the International Congress of Mathematicians at the end of the year. What do you think of this? I havent paid special attention to this matter, so I dont have any opinion... And if you ask this before the final result is out, it will give people a feeling of being appointed, and the impact will be very bad..." "The prize from the Nacre Institute of Mathematics will definitely be awarded at the Mathematicians Conference. Do you have any plans for the money..." The reporter just now was reluctant. Uhno plans. ?Chang Haonan shook his head directly. "ah?" ?The other party was immediately confused by this unreasonable answer. For me, this is a normal bonus income, and I dont need to make any special plans... "oh" The reporters hand holding the microphone shook, and he suddenly felt a little heartbroken... At the same time that Chang Haonan was chatting with the Confucian scholars. Beijing International Airport. A United Airlines Boeing 777 slowly stopped taxiing and docked precisely next to the bridge. ? Most of the passengers on the plane were exhausted from the long-distance flight of more than 13 hours. After hearing the departure channel opening, they all stood up like zombies to get their luggage. ?However, Lyles Connor and several others who came to China to compete still maintained a relatively energetic state by virtue of their youth, coupled with the jet lag of night owls from staying up late for a long time, and of course their sense of freshness. I must say, this place is different from what I imagined before I came here. ?Hermia, who was sitting by the window, said as she gathered her hair, then took out her hat from her bag and put it on: I thought the capital city should be about the same as Mexico City, but before landing, I took a special look below and found that at least the overall planning of the city is much neater than that of Mexico, and it is impossible to distinguish the rich areas from the slums at a glance As you can tell from her surname, Hermia is a Hispanic student. ??Although she was born in the United States, she still has many relatives in Mexico. Hence, before today, his only concept of a third world country was Mexico. ?For this reason, I was once worried about the safety of my group of people. Although I have never left the United States before, after all, China successfully applied for the Olympic Games last year... ?George Folger, who was sitting outside, had already moved the luggage of several people down and was just waiting for the people in front to give up their seats one after another: I thinksince the International Olympic Committee is willing to hold the Olympics here, it at least shows that the level of urban construction will not be much worse than Barcelona, ??Atlanta and Sydney ?At the beginning of the 21st century, no country had yet implemented those abstract activities when hosting the Olympic Games, so not only Chinese people, but people all over the world still had some positive filters for the Olympics. In fact, this was also the main reason why China mobilized the whole nation to bid for the Olympics As a window to show yourself to the world. ?Who would have thought that he would reach the top by accident? . At this time, Professor Jameson, who was sitting in the front row, also turned around. I know a few Chinese professors working in the capital. If you want, you can ask him to take you around in the days before the competition. ??Jameson said: You have been very well prepared for this month. The last few days are mainly about adjusting your state. Just be careful not to go too far, and also make sure you get enough rest..." What about you...and Mr. Hertz? ?Hermia looked up at Jameson and Haltz in front of her. Well...the old man cant compare to you young people. Jameson shook his head: Itll be nice if I can catch my breath after flying down this time before the meeting As for Hertz Before Jameson could finish speaking, Hertz quickly joined the conversation: In the period after the preliminary competition, many companies have begun to realize the value of COMSOL. When he said this, the slight fatigue on his face was swept away, and instead he revealed a feeling of satisfaction: So before I came to China, I had already found several companies to discuss cooperation. I cant act with you these days... (End of this chapter) Chapter 996 Finals, begin! Chapter 996 The finals begin! The next few days passed by as fast as a fly. Almost in the blink of an eye, March 27th arrived. According to the competition schedule, the final questions will be announced on time at three o''clock in the afternoon, and the question answering time will begin immediately. 48 hours in total. Submit project documents and documentation before 3 pm on the 29th. The scoring rules are basically the same as those in the preliminary round, and the scores will be judged based on calculation speed, result accuracy and submission time. ?But there is no two-out-of-three choices, only one must-answer question. Because there were nearly 70 groups and more than 200 people participating in the finals, the venue was divided into three parts. All located in the same conference center building. Considering that the calculation amount of the finals will be much higher than that of the preliminary round, if you use a personal computer to participate, a lot of time will be spent waiting for calculation results and trial and error, and it is likely that you will not be able to come up with the final answer within 48 hours, so Chang Hao Nan even found a Sugon 3000 supercomputer and allocated part of its computing power for the competition. ?As long as players log in to a temporary account and submit the calculation task, they can get the results in 1-2 orders of magnitude shorter than an ordinary PC. ?Of course, as a final, some necessary sense of ceremony still has to be present. ?? Definitely not the entire website like the preliminary round. When the time comes, refresh the website and download a PDF to calculate the question. Rather, all contestants must be arranged in a conference hall first. After Chang Haonan personally announces the topic, they will then go to their respective computer rooms to answer the questions - It doesnt matter if you didnt hear it clearly or didnt remember it, because there will be a pre-installed question in the computer. At the same time, since the competition lasts for more than one day, there are no restrictions on the players movements. ? Even if you are not used to the computer provided by the competition, you can use your own device. Just need to pass the test and register in advance. Only registered electronic equipment can be brought into the computer room. Furthermore, they cannot be taken out before the answer is submitted. It can also be regarded as preventing cheating to a certain extent. After all, numerical calculation is not college entrance examination mathematics, and it is impossible to write the answers on a piece of paper or keep them in your mind. As long as the storage medium is controlled, most methods will be ineffective... It is said to be three o''clock in the afternoon, but many foreigners do not have the habit of taking a nap. ?Hence, just after dinner time, people started to appear in the venue one after another. ??This also includes the Stanford trio, Hertz and Jameson Although the leading teacher cannot get involved in the competition itself, the stage of announcing the title itself is included in the opening ceremony of the competition, and it is impossible to exclude others. ? Its just that as a special guest of the conference, Jameson has an exclusive place on the rostrum, so he definitely cant sit down and listen. Tell the truth, Haltz. Jameson looked at Hertz who was following him and said: Before today, I even thought you might not be able to enter the venue... This is of course not a mockery of the latter, but as a representative of COMSOL, Herz has been almost continuous in the past three days, signing agreements of intent with nearly 10 industry giants involved in CFD, including software training, database sharing and new Version priority, etc. ??Although this cannot be said to have successfully poached the corner of the Torch Group, at least the intention of wielding a **** at the host has been clearly revealed, and the appearance is actually a bit ugly. ?In this case, even if you are directly expelled as a troublemaker, others will not be able to say anything. But in the end, Heltzs application to participate in the conference was approved directly, which indeed surprised several others. To be honest, even I didnt expect it to go so smoothly. Haltz found a seat in the third row and put his briefcase aside: Moreover, this actually makes me wonder whether the Chinese peoples purpose is to set a trap on the types of questions in the finals, and then watch us make fools of ourselves in public... Jameson shook his head decisively: Probably not. "Now almost the entire industry''s media and users are staring at them. If the final topic is too far from the pre-set CFD topic, then I can raise questions as a special guest, and no one will lose face by then. nice" Lyles Connor sat down in a seat next to him, and then spoke: And in the past month, we have been practicing on our previous weaknesses. Even if we encounter particle flow or infinite boundary problems again in the finals, we will have ways to solve them. Taking a step back, its still okay At this point, he suddenly hesitated. After making sure that there were no outsiders around, he continued in a low voice: You can use TORCMultiphysics software to solve boundary problems during the calculation process, and finally use COMSOL to calculate the results, and then submit the project file in .cmph format. Even if COMSOL is not good at dealing with this kind of problem, it is just a calculation. How can it not calculate a converged result? After such rounds of persuasion, Hertz, who was still a little unsure, calmed down again. Indeed, my preparations are almost foolproof, and I have even prepared many emergency plans in advance. This includes the kind of subterfuge that Lyles just mentioned. There should be no problems at all. Thinking of this, Herz breathed a sigh of relief and prepared to lean back on the chair to recharge his batteries and take a short rest. Tonight, he has another meeting with Toyota... The latter returned to the F1 race in 2002, but as a relatively new team, it was difficult to keep pace with its opponents in terms of hardware facilities such as wind tunnels in a short period of time. Therefore, they are ready to learn from Ferraris advanced experience and quickly improve the design efficiency and design level of aerodynamic components through cooperation with COMSOL Soon, the kick-off ceremony before the finals officially began. There is no long and complicated process as imagined. After Song Jingming spent about 10 minutes reviewing numerical calculations and, of course, the development history of Torch Group (thanks to the short time since Torch Group was established, there really is no history to talk about), it was Chang Haonan who came on stage as a special guest. Guest representatives spoke and read out the final topics. It caught many people off guard who had been prepared to be bored for a while. "Today, I am very happy to see that all the contestants have won the fierce competition from their respective schools, which shows that you are already the best among your peers in this industry..." No matter what the result of todays competition is, I hope you can make further progress in the field of numerical computing in the future... Chang Haonan stood in front of the stage, neither holding his speech script nor looking at the teleprompter. He just held a microphone in one hand and put his other hand in his pocket, pacing slowly. After a few words of encouragement, he suddenly turned around and returned to the back of the podium, and at the same time motioned to the staff below to prepare to turn the pages of the PPT: Then next, I will officially announce the title of the finals! The entire venue instantly became silent. Everyone is waiting for new characters to appear on PPT. Here, we can disclose it in advance, it is a two-phase flow problem. ?Chang Haonan once again failed. The audience who thought he would say the title directly let out a burst of "ugh~" sounds. ?It also made the atmosphere in the originally dull conference hall much more relaxed. Just before everyones final words had finished, Chang Haonan made a surprise attack: 5, 4, 3 ?The sound of counting made everyone nervous again. Fortunately, this time it is not a pass, but it actually counts to 1. As Chang Haonan''s voice fell, the PPT was turned to the next page. In the production process of plastic products, microporous injection molding technology can reduce material consumption, reduce the weight of injection molded parts, improve injection molding thermodynamics, and shorten the cycle of the molding process. Therefore, it has received great attention since its advent in the 1980s..." "According to the principle of microcellular foam injection molding, the first step of the process is to prepare a uniform mixture before the melt is mixed and accumulated in the screw head. This is a necessary condition before microcellular foam injection. This requires that the screw mixing section must be There are corresponding mixing elements that can change the position of the bubbles from top to bottom, accelerating the diffusion and dissolution of bubbles in the polymer..." We are now assuming two polymer melts A and B. The specific properties are shown in Appendix 1 and Appendix 2 respectively. Please design a torsion element installed at the front end of the screw to mix the two substances AB..." Looking at the title on the PPT, Professor Jameson, who was sitting on the rostrum, showed a hint of surprise at first, and then turned to joy. ?Although the background of the topic seems a bit unpopular, its essence is nothing more than a two-phase flow mixing problem. ??Although the traditional finite volume method is not suitable for solving this kind of problem, the latest version of COMSOL happens to make use of the Lagrangian method of unstructured mesh, which solves this problem to a certain extent. As long as the boundary problem is solved, the solution can be solved step by step according to the normal CFD problem. ??It will definitely not be a problem for Lyles and others who have been specially trained by him. ?Thinking of this, Jameson even glanced at Chang Haonan behind the podium with a somewhat gloating look. In his opinion, this should be a small trick used by the other party to set the question. Use the boundaries of drastic changes in topology to limit the performance of COMSOL. But his cleverness led him to be misled by his cleverness. At the same time, Chang Haonan on the stage was also paying attention to Professor Jameson''s reaction from the corner of his eye. After seeing the latter''s expression and eyes, he knew that he was stable this time. ?The other party didnt realize the hidden pitfalls in this question at all. By the time the contestants realize something is wrong, it should be the morning of the third day, approaching the submission deadline. ? Even if I wanted to go back and use TORCHMultiphysics to remedy the situation, it would be too late... In fact, Hertzs previous guesses almost hit the truth accurately. It''s just that Chang Haonan''s method is much smarter than everyone expected. Coupled with excellent confidentiality measures. Finally, such an unsolvable conspiracy was brought to the forefront. (End of this chapter) Chapter 997 Have a blast! Chapter 997 Lets have a big fight! Like Professor Jameson on the stage, most of the people in the audience only experienced a brief moment of confusion after seeing the question, and then quickly realized the essence of the problem. Should it be a two-phase flow problem of non-Newtonian fluid? George asked his two companions in a low voice. "yes." ??Liles nodded, then showed a playful expression: And there are still pitfalls in the conditions of this question The other two were stunned when they heard this, and looked at the conditions on the big screen again. It was Hermia who reacted first: Gas-liquid two-phase flow? According to the process conditions given in the question, approximately two-thirds of the process of substance B will be in the gaseous state rather than the liquid state. oh George next to him also smiled knowingly: It seems that the tournament wants to use these details to cause us trouble... Although it is an inconspicuous place, I am afraid that many people will be deceived. Lyles crossed his legs: "The person who asked the question is very bad..." In his opinion, this should be a small trick used by the Torch Group against them. As long as the Chinese participating teams are given a little reminder, they can be completely avoided. If other teams dont pay attention, it will affect their results. To some extent, it can be regarded as a reasonable use of the host''s advantages. In fact, in numerical calculation software, there is a database for most common fluids. ??If the calculation conditions you enter are too outrageous, such as 1 bar, liquid water at 1000C, there will definitely be a prompt. But today these two polymer melts are obviously not among the common. ?Although problems will still be discovered in the end, the 48-hour competition time is not very generous in the first place. If it is delayed like this, it is very likely that the problem will not be completely solved. If you take into account the mentality affected by this incident, the potential losses will be even greater. This kind of digging holes in questions is relatively common in general examinations. ?However, competitions, especially high-level competitions, are actually rarely encountered - Because it is generally not the focus of investigation. ?At this time, Hertz, who was next to him, also came over: "Two-phase flow problems should be the most classic CFD application field. Although COMSOL''s advantage in this area is not as great as that of homogeneous turbulence problems, according to our previous tests, the calculation efficiency is also significantly better than that of Torch Group and ANSYS. Taste." What happens next depends entirely on you... Although nearly 10 teams that have reached an agreement with COMSOL have entered the finals, there is no doubt that these three players from Stanford University, who have been personally coached by Professor Jameson, are their seed teams. ??It is also the team that received the most attention before the finals. After the preliminary round, Hertz''s ambitions have expanded a lot. He has even begun to consider whether it is possible for the three Lyles players to continue their form in the finals and take first place again. When the time comes to win the first place in the preliminary round and finals, it will be an excellent promotional material. Dont worry. ??Lyles replied: They set up several tricks on the topic, but its not hard to see. If he was still a little unsure before seeing the question, now his mentality has basically stabilized. People are like this sometimes. If the whole process is completely smooth sailing, you will become suspicious. But if there are a few small obstacles that don''t even play a role, then you will feel much more at ease. ?However, this part cannot actually be regarded as Chang Haonans calculation. In fact, whether the substance is in a gaseous or liquid state has no effect on his plan. ? Its just that polymer melts are not very common, and even fewer can be used for injection molding. So when you pick and choose, there are only a few options left that can be used to solve problems. While other groups are even more abstract. As for the fact that the opponent''s vigilance was lowered due to a combination of circumstances... it can only be said to be an unintentional move. After the examination questions were read out, the more than 200 contestants naturally left the conference hall immediately and went to their own examination rooms to start answering questions. Judging from their expressions, they are basically eager to give it a try. After all, the team that can pass the test and reach the finals will definitely not be a casual mess. Everyone can basically see that the difficulty of this question is basically at the boundary of their ability. You can reach it with a little jump. ? And if you can have an epiphany during the process of answering the questions, it may even be possible to further improve your ability... The rest of the people in the conference hall started chatting with a relatively relaxed attitude - Nearly everyone, at this point in time, feels that they have taken a big advantage. It goes without saying to scholars and professors that competitions and conferences will have great benefits for the visibility of the entire industry. In the future, whether it is applying for projects or business cooperation, the difficulty will be greatly reduced. Sponsors, especially those in the chemical industry, were overjoyed after seeing a topic so close to actual production. This means that numerical computing techniques at least have the potential to reduce their costs in the design and production processes. As for the three companies that mainly provide numerical calculation services and tools... COMSOL feels that it has a huge advantage to win. ANSYS has originally specialized in this type of process production issues, and even provides preset models for a variety of chemical equipment in the software. Although the performance is slightly worse, it is lightweight enough and can be used to drink soup. Not to mention Torch Group, Chang Haonan is ready to enjoy the scene when the results come out... Dear guests, please stay. ?Chang Haonan simply packed up his things, then stood up from his seat and said half-jokingly: Dont be anxious, we dont have to take the exam like the contestants One sentence caused a burst of good-natured laughter from below. After briefly livening up the atmosphere, he continued: The organizing committee of the conference has arranged a welcome banquet tonight, please be sure to attend..." ??If these people were put back now, they would definitely study the issue simultaneously with the players. ?Although Chang Haonan is confident that his hole is very hidden, the people sitting here are also well-known figures in the field of numerical computing. ??If you see some clues and find an opportunity to remind the venue, it will be troublesome. So, at least they have to be locked up in the banquet hall tonight. As for tomorrow It will be too late to do anything tomorrow... At the same time, the participating students have already taken their seats in front of the computers and began to study the question carefully. ?The trio from Stanford University even almost skipped this step ?Liles'' ability is indeed extraordinary. When he was just in the corridor, he had almost finished the draft. ?Now sitting in front of the computer, after a little review, he started to give instructions directly: In the first stage, Hermila was responsible for establishing the physical property models of two substances, A and B, in different states, and I handled the geometric model and meshing. "In the second stage, I dealt with the simulation calculation conditions and the setting of fluid physical parameters and boundary conditions. Hermi was responsible for the modeling of the forming screw and barrel, and at the same time prepared several typical torsion elements...actually the model of the stirring paddle. So that we can test it later. The third stage, based on the test results of the impeller model with different characteristics, select the best one and optimize it based on it..." Under his command, Hermia quickly clarified her thoughts and began to handle the first task in an orderly manner. "etc" George next to him was stunned for a moment: I...what about me? ??Liles glanced at him: There is no part of this problem that you are good at. You are responsible for handling the paperwork while we move forward. When the final results are released, I want to see your calculation documentation simultaneously with the project files! After saying this in one breath, Lyles returned his attention to the screen in front of him and took a deep breath. Next, he is going to have a big fight! (End of this chapter) Chapter 998 Something seems wrong Chapter 998 Something seems to be wrong ?Chang Haonan''s face still has some effect. Therefore, in addition to Heltz and others who had made appointments in advance, most of the on-site guests also attended the dinner organized by him. ? And due to the rich variety of food and drink, as well as the frequent speeches and toasts given by representatives of different organizers, everyone was more or less drunk at the end. Professor Anthony Jameson is no exception. As a special guest, he was given more champagne than others. It wasnt until midnight that day that the dinner finally came to an end. On the way back to the room, Jameson happened to meet Chang Haonan who was also about to leave. OhProfessor Chang! ??If the two of them met in normal times, they would probably just say hello in batches and then go their separate ways. ?But today, with the excitement of thinking he had succeeded in making a comeback and the drunkenness, he walked up directly and shook hands with the opponent very enthusiastically. It was also at this time that Jameson suddenly noticed that there was another person standing next to Chang Haonan. And judging from his appearance, he is not a staff member. I dont know who this is... He looked at the other person up and down and confirmed that he didn''t recognize him. I didnt see this person at the dinner just now. "oh" ?Chang Haonan smiled and introduced Jameson: This is Professor Harold Huang from Ohio State University and a special guest of this conference. He missed the introduction session at the beginning of the dinner due to transportation reasons. Jameson hadnt even heard of the other partys name, but when he heard that the other party was also a special guest, he nodded to him for Chang Haonans sake. ?However, he completely ignored the other persons extended hand, and did not notice Harolds embarrassed expression due to being ignored. Instead, he looked at Chang Haonan again In fact, Jameson''s heart was somewhat provocative at this time. It means something like "thirty years to the east of the river, thirty years to the west of the river, don''t bully the old and the poor". It feels like being suppressed by the Torch Group for so many years and finally turning around. ?Of course, he is a decent person after all. The more you drink, the more you drink, and you wont get so drunk that you lose consciousness. Basic sanity can still be maintained. ??It''s impossible to do something as tasteless as making fun of someone. Just suddenly mentioned the conference itself two days later: "By the way, I forgot to ask at the dinner... I wonder what theme report you are going to give at the meeting?" ?This question is actually a bit silly. ?Most of the special guest reports have been planned internally. However, including Chang Haonan, there are still several people whose subjects have not yet been made public. So its normal to be asked. But no matter what answer Chang Haonan gives, Jameson can always mention his own topic, then mention the new algorithm he developed, and then mention the results of COMSOL... Thus pretending to be invisible. ?However, Chang Haonan is experienced in many battles in this regard. It is naturally impossible to leave a chance for Jameson. Oh, it is to use the constitutive equation that does not involve diffusion terms to solve the problem of high computational weight involved in numerically solving the viscoelastic constitutive equation of the lattice-centered finite volume method..." After finishing this somewhat awkward and lengthy title, he showed a meaningful smile: I wonder what Professor Jameson thinks of...this subject? ?This answer made Jameson freeze on the spot for several seconds, as if he was ready to perform a set of combos, but was suddenly silenced. Because the lattice-centered finite volume method... was the subject of his own report. Uhnot bad, not bad Professor Jameson subconsciously felt that something was wrong, but at this time he was already a little dizzy, and his brain could not keep up with the speed at all. ?So I had to say a few casual words of support, and then said goodbye to Chang Haonan, preparing to go back to the room to have a good rest. Time soon arrived at noon on the second day of the finals. ?In addition to the Stanford trio, other teams have also completed their analysis of the problem one after another and began to enter the problem-solving state. ? It has to be said that Lyles is extremely outstanding in both personal ability and leadership. Under his command, by ten o''clock that night, Hermia had completed the modeling of several types of typical torsion elements Strictly speaking, the torsion element should be a set, not a stirring paddle, and it also includes a flow channel to accommodate two fluids, which is one of the most difficult points in this simulation. ??However, in the update to version 2.5, COMSOL has just enhanced its compatibility with the Solidwork modeling software, and has also solved to a certain extent the pain point of the Lagrangian method being difficult to apply to non-structural adaptive meshes. Hence, it is almost a smooth journey. ??And Lyles himself has a more arduous task, so he is still burning the midnight oil in front of the computer. Relatively speaking, George, who was only responsible for writing work, became the most leisurely among the three people, so he took on the logistics work of the whole team very consciously. I was just on my way to buy lunch when I overheard a few people from other teams chatting. George put a large plastic bag containing cartons of milk and sandwiches on the table, and said to Lyles while tearing open the package: As you guessed, a team has already encountered the physical state problem of substance B. Heh...I knew it ??Liles swallowed the sandwich in his mouth and let out a sneer: If you fail to notice the change in the state of matter at the beginning, it will take 12 to 15 hours at the fastest to complete the steps of discovering the problem. After troubleshooting, you will finally find the problem and then redo it..." He turned his head and looked at the clock on the wall next to him: Its definitely not enough time. Looking at the captain who showed a smile, George also nodded: Indeed, the mentality of the team I met has basically collapsed. They seem to be ready to submit answers directly after completing the project documents without going back and redoing them..." This is only the first level ??Liles threw the empty milk carton into the trash can: "When designing the mixing device later, although the foaming screw was already provided in the question, the competition only provided a screw itself. An additional micro heat exchanger needs to be added between the metering section and the dispersing section to calculate the correct result. Even I was almost fooled by this this morning. Counting the time, there should be a second batch of participating teams that will soon be persuaded to withdraw by this heat exchanger... Obviously, on the other side of his calmness, he also has the extreme confidence of a top student from a prestigious school. Not only can you plan the work progress of your own team, but you can also roughly estimate the situation of other participating teams. ??As for whether this kind of estimation has practical use, or is it just a means of showing off skills, or a manifestation of obsessive-compulsive disorder... ??I''m afraid Lyles himself hasn''t thought about it seriously. In any case, the situation of other groups is just a chore. So after a brief chat during the dinner break, the two returned to work. At this moment, Hermia, who had been motionless next to her, suddenly yawned: Ah~ He stretched out his legs at the same time and slid the computer chair in front of the bag: "Liles, I have started to test the results of the mixed element watershed here. There are a total of 8 preset elements. The number of grids corresponding to each element is about 500,000 to 600,000. The MRF type model is used calculate." ??As she spoke, she took out the milk and sandwiches from the bag, but she did not immediately tear open the packaging like George and Lyles did, but stood up from the chair: It will probably be finished at six oclock in the evening. Ive been... uh... not feeling very well these days. Ill go up and have a rest first, and then Ill come back down..." As a special guest of the conference, Professor Anthony Jameson was naturally accommodated in a suite upstairs at the conference venue. As the three Lyles students were students of each other, and Stanford was not short of money, they also chose to live here out of convenience. The good thing is that you can just take the elevator upstairs and go back to your room to sleep. ??It''s definitely better than lying down and resting in the computer room cubicle. "no problem." ?Liles said without looking back. Although the competition time is set to last for 48 consecutive hours, it is impossible for normal people to maintain continuous high-intensity work for such a long period of time, let alone coffee or even drugs. Hence, the three participating team members must take turns to rest between work breaks. Hence, how to arrange rest time reasonably has become one of the abilities tested in the finals. Dont worry about whether its reasonable or not, just say whether its close to reality or not, right? ?Hong Haonans principle is basically that if you participate in my competition, you can still get a ranking. Basically, after graduation, you can seamlessly join a large factory to lead projects. A few hours later, Hermia awoke from her sleep. Looking at the time, it was already around 5:30 pm. There is about half an hour left before her calculation results are calculated. ?So she simply washed her face, and without bothering to do too much, she prepared to go to the computer room to complete the last part of the entire design Export the calculation results, and then optimize again based on the results. If nothing unexpected happens, then this round of optimization is over and you can submit the answer directly. In the elevator, she coincidentally met Jameson who was also about to go downstairs. Professor, afternoon ?Hermia was about to say hello when she noticed that the other person''s face was a little haggard: Did you just wake up? Jameson rubbed his still swollen temples and shook his head: Thats not true, its just that I drank a little too much yesterday and rested late, so I have a bit of a headache ?Hermia naturally didnt know what happened yesterday, and thought it was Jameson who was addicted to work: Have a late rest...Are you also staying up late studying that topic? Ah...no. Jameson shook his head in embarrassment, but he was also embarrassed to admit that he drank a little too much at the dinner, so he avoided the important and ignored the important: Yesterday, I talked with the organizer, Professor Chang Haonan, about his conference report, about... about... He spent a few seconds and finally remembered the content of his latest chat with Chang Haonan: It is about high computational efficiency in numerically solving viscoelastic constitutive equations At this point, Jameson''s voice stopped abruptly. The movements of his hands also stopped. Calculate what ?Hermia only heard half of the words and then stopped talking. She turned around subconsciously. ??But he saw Jameson''s face was pale, with an extremely horrified expression on his face. Moreover, the whole body was trembling. "professor?" She shouted with concern. But the other party seemed not to hear. In just a few seconds, Jamesons forehead was already covered with fine sweat Last night, my brain was not in a good state and I couldnt react. But now looking back at Chang Haonans theme, he suddenly realized something. To solve a problem, you must first have a problem. He certainly knows the lattice-centred finite volume method. Or rather, the core of the entire COMSOL 2.5 update is this technology. but ??Problems with high computational weight in numerically solving viscoelastic constitutive equations ?But its a little strange. in other words. When he designed the algorithm, he probably overlooked some very important details! And then, an even worse possibility emerged from Jameson''s mind... Hermia. Professor Jameson took several deep breaths in succession before he managed to stabilize his mentality: During the competition, have you ever encountered the solution process related to the viscoelastic constitutive equation? Her voice trembled when she spoke. Of course I have. ?Hermia nodded almost without thinking: Actually...the step we are calculating right now is this. O ?Hermia''s answer was like a thunderbolt, exploding directly in Jameson''s ears. Immediately afterwards, the latter felt that his vision went dark and he lost his balance... Fortunately, the elevator space was small, so Jameson did not fall directly to the ground, but leaned on the side handrail. "professor?" ?Hermia, realizing something was wrong, quickly stepped forward to help. ?At this time, the elevator has also reached the first floor. ?With a "ding-" sound, the elevator door opened. Leave me alone...Im fine... Jameson refused Hermias support and motioned for her to leave quickly: Go quickly... and take a look at your calculation results! "quick!" (End of this chapter) Chapter 999 You win, win, win, but in the end you lose everything Chapter 999: You win, win, win, but in the end you lose everything. ?Jameson had a terrible suspicion in his mind at this time. That is, the algorithm he designed, and of course the COMSOL 2.5 version software developed based on it, has bugs when numerically solving certain types of viscoelastic constitutive equations. ?This bug should be so obscure that even he himself doesnt know about it. But Chang Haonan knew. ??Moreover, Ive known it for a long time. If this is the case, then The whole competition is just a round. A situation that has been set up. In the preliminary round, two questions were selected that were most advantageous to COMSOL and did not involve viscoelastic constitutive equations, allowing the participating teams using COMSOL software to achieve results far beyond expectations. It is equivalent to lowering their vigilance and luring the enemy deeper. The final is the real killer move. Two-phase flow calculation, pure CFD problem. It seems that COMSOL still takes advantage. But as long as that BUG can be triggered, the results of all teams using COMSOL can collapse. Even impossible to achieve results at all! ?Of course, if we want to explain this chain of thinking clearly, it will take at least ten minutes to talk about it. Thats why Jameson asked Hermia to see the calculation results without saying anything. If everything is normal, it proves that his worries are unfounded. As for BUGs, even if they exist, they can be fixed slowly. ??And if the result cannot be calculated, or there is something obviously wrong with the result... ?Then there is no need to worry about BUG for the time being. Lets directly prepare for public opinion and public relations... Professor Jameson didnt even know how he got out of the elevator. When he came back to his senses, he found himself sitting on the sofa at the front desk of the hotel. He didn''t think too much and quickly touched his pocket, only to find that he didn''t have his cell phone with him. ?So he rushed to the front desk in a hurry, borrowed a landline phone and dialed Heltzs phone number... At the same time, Hermia also hurriedly returned to the computer room, ?Although she was still confused, Jameson''s abnormal behavior just now made her understand that the situation should be very serious. Sure enough, when she pushed open the compartment door, she found the other two people sitting in front of Unit 3 with livid faces, as motionless as two statues... Lemmy? Joe? She barked twice tentatively. ?Hearing Hermia''s voice, Lyles''s body swayed slightly, and then he turned his head stiffly like a robot: Hermie, I think we... are in trouble. ?Hermia, who had already had an ominous premonition, twitched the corner of her mouth and her heart sank: What exactly happened? Speaking, he walked back to his own Unit 3. On the screen is the calculation she started before going to rest. Now, the results have come out as she expected. But not completely. because Compute divergence? ?Hermia also showed a ghostly expression: How is it possible? The computer room was eerily quiet for a while. ?Only the faint squeaking sound of the hard drive occasionally sounds. Actually...this is our second calculation. George replied in a hoarse voice: At three oclock in the afternoon, the calculation you made before you left has already gone wrong. Later, we adjusted the boundary conditions and starting point and tried again, but the result... was still divergent. A problem may occur due to accidental factors or simple input errors. But if the same problem occurs twice in a row, there are only two possibilities. Either there is something wrong with the method. Either there is something wrong with the tool. but ?This is actually not important anymore. Because it is already the evening of the second day. There are only 15 hours left to submit your answer. ?Compared to those teams that discovered problems early and reworked early, they didnt even have the chance to start over and submit a semi-finished product in the end. Lyless face was terrifyingly ugly ?Just a few hours ago, he was condescendingly judging other teams in trouble, as if he were staying out of it. ?However, when the same situation happened to him, he found no warning. Let alone think of a solution. Hermie. A few minutes later, Lyles finally came back to his senses and looked at Hermia behind him: Go to Professor Jameson quickly and see if he has a solution... ?Hermia thought about Jameson''s performance just now and felt that the possibility was probably very small. The professor must have just realized something was wrong. It is impossible to think of a solution instantly. Besides, even if you think of it, you may not have time to change it. ?And George next to him was a little hesitant: It can be according to the regulations of the competition... Never mind that! ?Lyles growled lowly: Before we solve the problem, we must at least submit a valid result! Besides, Im just asking the professor for ideas. If I dont bring any storage equipment, the competition wont be able to find it..." He tended to abide by the rules before because he felt that he had great advantages and could get good results even if he abided by the rules. But now that we are at a disadvantage, we have naturally forgotten those things long ago. ?Hermia hesitated for a moment, then turned around and ran out again... However, the result was pretty much what she had expected. Jameson was silent for a long time when he heard Hermia say that their calculation results were divergent and could not converge no matter how they adjusted the input settings. In the end, he just sighed. As for Heltz next to him, he collapsed directly on the sofa. In fact, it stands to reason that if a bug occurs in something like software, or it is an unpopular bug that no one has reported for half a year, it should not be a big deal at all. But the problem is that in the month between the preliminary rounds and the finals, he created a lot of momentum. ?Even the awesomeness has been blown out now. The top three guaranteed funds have also received loans. Everyone is waiting to see your dazzling performance. The result was a failure. ?Thats a pure clown. All previous publicity, all intentional or unintentional disparagement of Torch Group, and even all intended orders. They will all turn into boomerangs, piercing themselves in the head one by one. Everyone who has been in the rice circle knows this truth. The most terrifying backlash is called turning from pink to black... ? No matter how you explain it, it can''t change the fact that COMSOL Multiphysics is embarrassed in public and has been thrown out of the horizon. Every user will think about what happened in this competition before using it. And this is not even the most embarrassing thing ?Two days later, the entire industry will know that the bug that COMSOL did not even discover has been solved by Torch Group... ?This kind of negative effect cannot be completely eliminated in just a few years. Considering the development speed of Torch Group and the entire numerical computing industry, in a few years... ?Honestly laughing, who still remembers who you are at COMSOL? Professor, is there really nothing you can do? ?Hermia, who was still a little unwilling to give up, asked. Jameson closed his eyes in pain and shook his head. After a while, he finally opened his mouth to explain: "At present, we can only determine that the problem should be in the process of solving the viscoelastic constitutive equation. After the stability representing elasticity increases to a certain critical value, the numerical solution will produce non-physical oscillations in the area of ??rapid stress change, causing the algorithm to fail. Stable, computing crashes." "But why this happened...it will take about two days to know." Why can we find out in two days? Because Chang Haonan has to give a report in two days... You will know it naturally after listening to it. ?Of course, Jameson did not say this. For Hermia, however, the outcome was clear Even the cause cannot be found, and the solution is even more fanciful. She didnt even stand upright, and sat directly on the bed: "Then...then our final result is not..." No one answered. Finally, it was Jameson who added this sentence: "Don''t worry...I will help you bear the cost of this trip to China..." ?This sentence is almost a disguised admission. Nothing can be done. Just wait to die. ?Hermia, who was sitting on the bed, opened her mouth. She wanted to say that the three of them were not traveling to China, so what was the use of paying the travel expenses... ?But in the end, looking at Jameson and Haltz who were also lost, she swallowed these words back... "knew" ?Hermia leaned on the edge of the bed and stood up again unsteadily: Ill go and talk to them about the situation (End of this chapter) Chapter 1000 Torch Group, the eternal **** (10,000 per day, please give me a monthly ticket) Chapter 1000: Torch Group, Eternal God (10,000 per day, please give me a monthly vote) March 29, 8 pm. Because it was already the day before the official opening of the conference, all special guests, even those not directly related to the competition, had already arrived in China. At this time, a group of people were backstage, checking the final scores with Chang Haonan According to the rules of the competition, the final scores of the finals need to be witnessed by a group of specially invited guests and subject to random inspection. After confirmation, the awards will be announced and awarded at the conference the next day. Different from the preliminary rounds, which have relatively ample time, for most teams, the finals can only be completed about 6-8 hours in advance if there are no problems throughout the process. ??As long as the shell is stuck somewhere in the middle, time will appear to be tight. If you want to go back to work somewhere, you basically have to consider how to focus on the big and let go of the small. Therefore, among the more than 60 participating teams, more than 50 submitted their answers in the last half hour before the deadline. As for that number of early submissions... After inspection, it was found that it was basically due to a breakdown in mentality. Fortunately, the total number of teams participating in the finals is not large, so even if they submit in a group, five hours is still enough to complete most of the scoring work. Professor Chang, good evening. ? Harold took the initiative to step forward and said hello to Chang Haonan. After some pleasantries, the former suddenly looked around and asked: Speaking of which...why didnt you see Professor Jameson today? As a relatively unknown scholar, among all the special guests, he almost only knew the two people he met yesterday, so it was not surprising to ask about Jameson. "Uh...he said he didn''t feel well, so he wanted to go to bed early, so he didn''t come to participate in the evening activities." ?Chang Haonan barely suppressed his smile and replied with a regretful tone. ?Of course, he didn''t lie. Because thats exactly what Professor Jameson said. Its just that, as the initiator of everything, Chang Haonan knew a little bit about the inside story ?The other person is not feeling well, and most likely he is feeling anxious and angry... Welltomorrows conference is indeed more important. ?Of course, Harold had no idea what was going on and just took it as what it was. ??I was still thinking that it was no wonder that when I saw Professor Jameson the night before yesterday, he seemed abnormal. ?While the guests were communicating with each other, Meng Weizheng, the head of the referee team on the other side, also stood up from the computer and strode to Chang Haonan: Report, all scoring work has been completed! As the translator conveyed this sentence, the originally noisy computer room suddenly became quiet. Professor Chang, its getting late. I think... dont whet our appetites and announce the results as soon as possible. ?Professor Suhas Patankar from the University of Minnesota said. As a master of numerical calculations an era earlier than Anthony Jameson, Patankar can be said to be one of the original pioneers of the entire field. Even now in 2002, his book "Numerical Calculation of Heat Transfer and Fluid Flow" is still one of the top textbooks in the field of mass transfer dynamics. It is natural that he should speak on behalf of the special guest. ?Chang Haonan had no intention of betraying him at this time. What''s more, what''s going to happen next is a masterstroke. Lao Meng. He gestured to Meng Weizheng. But a trace of hesitation flashed across the latter''s face, and he whispered to Chang Haonan in Chinese: "Mr. Chang, the results of several groups are obviously abnormal. I''m worried...that someone is deliberately causing trouble..." I have to say that Meng Wei is really full of vigilance. Its just that I dont know how to judge the occasion. ?Data anomalies? Abnormal is normal, right? If everything was normal, it would be abnormal... Do as I say! Chang Haonan said in a deep voice. In this small area of ????the Torch Group, his prestige is still very effective. Even though Meng Weizheng was still a little worried, he still followed Chang Haonan''s instructions and asked the staff to project the results of the game. For a moment, everyone turned their heads and looked at the curtain on the side of the room. The most eye-catching thing is naturally the first place. JingHangUniversity103.7 points! It must be said that the English names of some schools are purely for setting. Just like Beijing Hang University. Foreigners who dont understand Chinese will have no idea what JingHang means. If you understand... Then there is no need for an English name. Fortunately, because of Chang Haonan, JUAAs name is somewhat well-known in the academic world, so it wont really be discredited. ?So someone quickly recognized him. I have read the papers published by Professor Chang. This should be the school where he works. Then ranking first is reasonable Indeed, if you are still a student of Professor Chang, then Probably not. I remember Professor Chang specifically said before that in order to avoid suspicion, his research group did not sign up for this competition. In the midst of the discussion, the list on the curtain slowly slid downwards, and the subsequent rankings gradually appeared. Second place, National Institute of Aeronautics and Astronautics. Third place, MIT. The scores of the two schools are exactly the same, both 100.2 points. It''s just that the order of submission differs by less than 10 minutes. The difference is basically just luck. ISAE...is it the one in France? Someone asked. Of course. The answerer is a French professor, with a smile in his tone. Universities in continental Europe are generally not known for their comprehensive rankings, but this does not mean that they lack strength. Fourth place, Samara State Aerospace University, 99.8 points. Fifth place, Cranfield University, 99.4 points. Sixth place, Bingcheng University of Technology, 98.9 points. The top ones, except for a few Chinese names that occasionally flashed by, are basically schools that have already enjoyed a great reputation in the world. ?Hence, everyone is not surprised. ?Only occasionally does the crowd burst into applause when the school where a particular person teaches appears. Twelfth place, Ohio State University, 85.4 points "oh" ?Suddenly seeing Professor Harold from his school, he subconsciously covered his mouth, but still let out a exclamation. ?Not many people present knew him, but when they saw this scene, they naturally understood that this was his school, so they gave him a polite round of applause. ?The atmosphere seemed very harmonious for a time. until. "etc!" When the list scrolled down to the 20th place, a voice suddenly sounded: So far, I havent seen Stanford University, which ranked first in the preliminary round, and Minnesota Twin Cities, which ranked third? One sentence is almost earth-shattering. ? Meng Wei, who was not far away, also trembled when he heard these words - That''s what he just said about the abnormal results. I dont think I saw it either "really" "But this is already behind the 20th place, with only 74.2 points... The two schools ranked in the top three in the preliminary round cannot perform abnormally together in the finals, right?" The originally joyful atmosphere suddenly became a little subtle. Since MIT ranks third and there are two other universities from the United States in the top ten, it is absolutely impossible that the organizers are targeting the United States. ? And so many schools have experienced significant decline in performance, and it is obviously unlikely to be due to cheating in the preliminary examination. ?However, it didnt take long for someone to figure out who could be the special guest: It seems...none of the schools that used COMSOL to submit engineering documents in the preliminary rounds were seen? Now, the mystery is undoubtedly solved. More than a dozen sharp eyes suddenly looked at Chang Haonan. Even Professor Harold was a little hesitant at this time. Professor Chang. Finally, the highly respected Patanka stood up: I think there are obvious abnormalities in the results of the final. ????The meaning is obvious You are a business owner, so you can take advantage of the host country, play a little side game, and promote your own products. Everyone can understand this and won''t say anything. ??But it would be a bit ugly to target competitors without even showing off. As for Chang Haonan, it is natural to accompany them to continue the performance: I agree with Professor Patankar. He turned away his hands and glanced at the crowd without timidity: So, it is recommended to conduct a strict investigation! ?This reaction with a dignified face and awe-inspiring righteousness was obviously beyond the expectations of others. Even Patanka was a little confused. After being stunned for a while, he said: "Then... when all the rankings are released, let''s check the result documents submitted by those schools. You should have no objections, right?" ?Chang Hao Nanxin said that I have no objection, I am just waiting for your words. check! Check it quickly! I cant let you out until the results are found... ?Of course, on the surface he still nodded with a serious look and replied in a decisive tone: Of course I have no objection. We must figure out why there is such a big difference in results between the preliminary rounds and the finals! ?After such a small disturbance, 40 people finally came to the back of the curtain. From the 43rd place onwards, the results column is not marked with numbers. but N/A. There are no valid results. The two schools just discussed appear in this list. No results? This result was completely beyond the expectations of everyone except Chang Haonan. ? What they originally thought was that the organizers would give a super low score to the participating groups using COMSOL. But it would be a bit outrageous to have no results. Either it was not submitted at all, or there were fatal problems in some crucial steps. Otherwise, there will be points for high and low. ?At this time, everyone was a little hesitant about the judgment just made. ?Even if Chang Haonan really wants to cause trouble, he is not a fool. How is it possible to use this method that can identify the problem at a glance? For a time, the entire computer room fell into silence. In the end, Chang Haonan, who really couldn''t hold himself back, took the initiative to speak: Everyone, time is tight, lets start checking! After finishing speaking, without waiting for anyone else to react, he turned back to look at Meng Weizheng: Select the answer results submitted by all teams after the 43rd place! "yes!" The latter saw that Chang Haonan could still issue instructions in an orderly manner at this time, and finally realized that his boss might have had a plan. ?So this time without any hesitation, I opened the first project document directly as instructed. ??However, in this case, its really not COMSOL. It is the software of Torch Group. It only took less than 3 minutes for a group of big guys to see the problem I got the state of matter wrong at the beginning, and then made a lot of stupid mistakes during the correction process. In the end, I probably had an explosive mentality and submitted an incomplete result one day ahead of schedule. Because I submitted it early, I ranked first among N/A. Following this, is the second copy. It is still the software of Torch Group... This is a bit embarrassing. ?The situation is similar to the first one. It was only half done and then handed over as a semi-finished product. It wasnt until the fourth one that I finally had a file with a .cmph extension. After opening it, even the painting style is different from the previous ones. ?The file content is very complete at first glance, and even tests several different modeling... How could this be... Some people blurted out subconsciously, wondering how it was possible that there was no achievement. But halfway through the words, I got stuck in my throat. Because everyone noticed. Although the idea of ????dealing with the problem is very reasonable, the programming and calculation method selection are not too problematic. But the most important thing is missing result. Its not just that there is no end result. There are not even results from intermediate tests of the modeling. ??The numerical calculation competition is not a college entrance examination, and there are no steps. So there is no result and the grade is N/A, which is very reasonable. But why Harolds brain is already a little burned: Why dont they figure out the results? ?He has no doubt that with the quality of this answer, as long as he gets relatively accurate results, even if not all of them, he should be able to get a good ranking. Look at the back first. ?Patanka waved his hand to stop Harold from continuing. At this time, his eyes had gradually turned from suspicion to curiosity. ?The last one is Stanford University, which everyone is most concerned about. Program loading Everyone held their breath almost subconsciously. After a minute that lasted as long as a year, the project file was opened. The situation is almost the same as the previous group. Their ideas are clearer and the content is more complete. But again, no result. The third, fourth, fifth Gradually, some people began to realize that something was wrong. It is impossible for the submitted answers to be dropped. Hence, if one or two calculations using COMSOL fail to produce results, they can still be regarded as accidental. But all the answers submitted using COMSOL have no results, while others in Torch Group and ANSYS are doing fine... ?The problem obviously lies in the computing tools. Professor Patankar, as a big boss who started studying mass transfer dynamics, did not talk nonsense and directly asked the staff to cut to the running log. Even special guests, few people can directly analyze log files with naked eyes like Chang Haonan. But Patankar is indeed one of them. He saw the essence directly through the phenomenon: "That is to say...COMSOLMultiphysics software, in the process of calculating the viscoelastic constitutive equation...at least the specific viscoelastic constitutive equation...there will be abnormal numerical oscillations, which will eventually lead to divergence of the results!" He turned back and looked at Chang Haonan. Only this time, it was in a questioning and confirming tone. ??If this is the case, then the applicability of COMSOL in two-phase flow, and even in the entire chemical and energy fields, will be a big question mark. At this time, Chang Haonan could no longer control his expression. He pinched his thigh a few times before barely holding back his laughter, and put on a shocked face: It looks like... it should be like this. Butthisif this is a bug, it should have been discovered during the internal testing stage, right? To be fair, his acting skills are not very good. ?But at this moment, everyone is still in the initial shock, so there hasnt been any loopholes yet. "and" ?Chang Haonan adjusted his mentality and continued to perform: And this kind of problem...cant it be solved with a constitutive equation that does not involve diffusion terms? "Is it possible that COMSOL...hasn''t done any research in this area?" ?) ?) ?Everyone felt like something was wrong ?This is the technical roadmap of COMSOL. Why do you, the Torch Group, act like you know more about it than the real owner? (End of this chapter) Chapter 1001 Promote hardware development with software advantages Chapter 1001 Promoting hardware development with software advantages Because the facts were too clear, the little hiccup during the results soon subsided. Its just that the aftertaste of this episode will reverberate for a long time... The next day is the official opening of the conference. Since the number of participants for this conference far exceeded everyones expectations, the double-layer conference hall that was booked from the beginning could not fully accommodate it. ?So much so that some "less important" people need to be moved to other rooms in the same building and then watch the meeting through a closed-circuit television system - Be present, but not quite there. Later, after the Beijing Foreign Liaison Office joined the planning work, it even offered to help coordinate a gymnasium as the main venue. ?However, due to the strong protests from Zhu Yadan and other security comrades, this plan still came to nothing. As the initiator, main sponsor and special guest of the entire event, Chang Haonan needs to sit in the first three separate rows with more than 20 other important people. Or strictly speaking, the middle of the first row. As an academic conference, you cannot set up a three-step, one-post, five-step and one-post peripheral inspection. So the more people there are in the central venue, the greater the pressure for them. At present, these hundreds of numbers are still within control. ??If there are really thousands or even thousands of people at the same venue, then you will have to apply for additional measures from the above... In short, the entire plan was maintained as it was in the end. ?However, this also brought an unexpected benefit. It means that the distance between people is physically shortened... Professor Jameson, good morning! ?Chang Haonan found Anthony Jameson among the crowd with little effort. The latter was wearing a peaked cap with the brim lowered deliberately. He was not sitting in his seat, but was standing against the wall. It seems that he doesnt want to be noticed too early. ??But with Chang Haonans specially raised voice, the eyes of everyone around him were still attracted... UhProfessor Chang, good morning. ??Jameson saw this and knew he couldn''t hide anymore, so he had to step forward and shook hands with Chang Haonan. ?Compared with his high-spirited appearance a few days ago, his face now looks a little haggard, and even his hair seems to be getting grayer... Is your body recovering well? ?Chang Haonans expression of concern showed no sign of hypocrisy, and his tone was also full of sincerity It was specially rehearsed last night. ?If this scene is seen by an uninformed person, one would sigh with emotion like "the inheritance of two eras". But Jamesons inner pain is only known to him... Its okayits okay ??Jameson''s body doesn''t really have much to recover from. But the mental trauma is hard to say. The opening ceremony is about to begin, lets go to the special guest seats. ?Chang Haonan enthusiastically dragged Jameson towards the center of the venue. As he walked, he said: "I specially asked the conference team to arrange a seat in the middle of the first row for you..." In fact, after Hertz learned that the final result was going to collapse, he immediately bought a ticket and flew back to the United States to prepare for the funeral arrangements... Wellthe aftermath. Even Jameson himself briefly thought of running away from the meeting due to illness. ?This is also why he chose not to participate in the event last night after claiming to be ill. ?However, after a night of fighting between heaven and man, I finally gave up this idea. Its too low. The participants are all top practitioners, and they all live in concentrated places. One spreads it to ten, and ten spreads it to a hundred. By the end of the meeting at the latest, everyone will know exactly what happened. In this case, dont call it illness. Even if you are really sick and unable to attend, others will see it as a complete evasion of responsibility. From now on, I no longer need to hang out in academic circles. On the contrary, if we face the reality, this matter is nothing more than a research flaw. At best, its just a marketing failure, which is very embarrassing. But who among those engaged in research has not lost face? As for commercializing imperfect technology ?That was a wrong decision made by COMSOL, and it had nothing to do with Jameson himself. ?Its amazing that he returned the funds given by the other party... ?However, psychological construction belongs to psychological construction. When you are actually sitting in the meeting hall, it is a completely different matter. ??Jameson can feel something strange in the eyes of anyone next to him. ??And any two people discussing in a low voice together will make him guess whether they are making up a discussion about themselves... In short, I was literally on pins and needles. So much so that when the opening ceremony finally got to the point where the competition results were announced, Jameson even felt a little relaxed... Anyway, extending one''s head is the same as retracting one''s head. ?Then why not make this knife come faster... ??As the athletes march played, the curtain in front of the conference hall began to reveal the detailed information of the winning teams one by one according to their ranking. According to general practice, the top three will receive trophies, certificates and medals, while the fourth to eighth will only receive one certificate. Considering that everyone is a decent person, we did not release the results and rankings of all the teams on site like last night. ?Of course, its just not available on site. Similar to the situation in the preliminary round, all competition results can be seen on the website, including the engineering documents submitted by each participating team. ??For a small and small circle like numerical computing, the speed at which information is disseminated through the Internet is not even as fast as word of mouth... ??Although only a dozen special guests witnessed the release of results and the subsequent spot check of the results last night. But in just one night, this matter was no longer a secret... ?Of course, there are always people who are not very well informed. Speaking of which, Stanford University, which ranked first in the preliminary round, didnt even make it into the top eight in the finals? A participant dressed as a student asked in a low voice to his companion next to him. "you do not know?" The latter showed a somewhat surprised expression: Not only did it not make the top 8, Stanford had no results at all in the end "ah?" The questioner looked shocked: Howhow could this happen? ? ?Stanford has always been at the top of the national rankings in the field of numerical computing. Coupled with the dazzling preliminary results, many people regard it as the favorite for the top three. Then Im not surebut numerical calculations require luck and experience, and anything can happen The person being asked was obviously not a well-rounded person and did not know the whole story. Fortunately, at this time, another person next to me also intervened: "I heard when I was having dinner this morning that not only Stanford, but also all the groups that used COMSOL to do calculations failed to achieve results in this final... It seems that the two-phase flow calculation will trigger a certain BUG in their software, causing the calculation to fail at all. No results "Who are you" Oh, Im just a little person, you probably havent heard of it "oh" The other two people didnt seem to take it seriously. As a result, the other party changed the subject: But the big boss of our laboratory is Suhas Patankar "oh?" With such a relationship, the credibility of the statement just now is suddenly different. "Two-phase flow is a very important part of CFD calculations. If there are serious bugs in this aspect, then the actual stability of COMSOL... I''m afraid it''s not very optimistic..." But the preliminary round The questions in the preliminary round were simple, and they were lucky enough to pick the part they were best at, but in the final the problem was exposed Similar conversations are taking place in multiple places at the same time inside and outside the venue. ? Even the awards ceremony going on on the stage seemed a bit bleak in comparison Its just an award, not for yourself. What''s more important than eating melon? Furthermore, after an unknown number of rounds of transmission, the content of the message has become obviously out of shape. In fact, the calculation vulnerability of COMSOL is only likely to be triggered under certain circumstances with high calculation weight. Otherwise, Chang Haonan wouldn''t have to go to great lengths to set up such a game, and even "customized" a question for them. But just one night later, the version everyone heard has become "COMSOL cannot do two-phase flow calculations." This is something that even Chang Haonan, the initiator, did not expect... No matter what. At least in the foreseeable future, COMSOL has completely lost its qualifications to be on the table... ?Most people didnt even notice when the award ceremony ended. ?It wasnt until Chang Haonan began to announce Torch Groups new plan for the next five years that everyones attention was drawn back to the stage. After COMSOL was actually eliminated, considering that ANSYS did not intend to challenge the Torch Group in a large field, but chose to focus on the chemical application, then for a long time in the future, The entire numerical calculation will return to the state of one company between 1997 and 2000. For users, this may not be a good thing. Therefore, everyone is also paying attention to what actions the Torch Group will make later. First of all, TORCMultiphysics will launch a new version 2.0, and convert the past 1.0 professional version into an educational version, permanently providing unlimited free trials to student groups around the world. As soon as Chang Haonan came up, he threw out a king bomb. Of course there was an educational version of TORCH Multiphysics in the past, but it was based on the public beta version of that year. The functions were very imperfect and the interface UI was basically at the level of 1998, and the user experience was extremely poor. ? It is precisely this problem that allows COMSOL to retain a considerable part of the market among research institutions and universities. Now that the 1.0 professional version has been converted into an educational version, it is equivalent to directly blocking the way for latecomers to learn COMSOL. ?Of course, the educational version is literally for educational purposes only. If you want to use software to publish research results, you still have to buy or rent a genuine version. On the other hand, this also means that the improvements in version 2.0 must be obvious enough. Otherwise, users who have spent money to use version 1.0 for several years may not agree. And this is exactly what Chang Haonan is going to say next: The upgrade of version 2.0 focuses on the introduction of a new conservation level set method for interfaces with drastic changes in topology, including multi-phase interface simulation and topology optimization problems, as well as the introduction of a new conservation level set method for increasingly refined aerodynamic design requirements. A new, more accurate turbulence model that can more stably describe the movement of fluid microclusters under high flow rates..." I will elaborate on these two specific technical issues in my report later... The release of version TORCH Multiphysics 2.0 was something that was announced long before the conference. At that time, COMSOL Multiphysics version 2.5 was in the limelight, and everyone generally believed that this would be a frontal expansion caused by a comet hitting the earth. Unexpectedly, it ended up being a unilateral sweep of the battlefield by the Torch Group. Didnt you see that someone specifically mentioned the upgrade for the two-phase flow problem... It''s completely a whipping corpse. On the stage, Chang Haonans speech was still not over. "In the past few years, we have also received a lot of feedback from users, and the issues focus on the compatibility of 3D models and meshing. To this end, Torch Group has reached an agreement with Dassault Systmes and Kompas. Jointly promote seamless connectivity between the fields of CAD modeling and numerical computing..." In addition, three years ago, Torch Group teamed up with Sugon Group to launch the Sugon 1000T supercomputer and server cluster that are more suitable for TORCH Multiphysics software at the hardware level, and achieved a pretty good response. However, since the computing power of Sugon Computer itself was relatively average at that time, the advantage of this combination mainly lies in cost-effectiveness rather than performance. "But with the development of the performance of Sugon series supercomputer, we will also continue this business model of hardware adaptation software. We plan to launch the specially optimized Sugon 3000T within this year. The computing efficiency will be one-third higher than that of Sugon 3000, and The Dawn Edition of TORCH Multiphysics comes with richer functions than the professional version..." When his speech ended, the entire audience burst into thunderous applause. As the final winner of this round of competition, Chang Haonan did not mention anything that worried everyone the most, such as price increases or new payment models. And almost entirely discusses the further development of numerical simulation technology. Many users have already taken out their notebooks and written down the name Shuguang Group, preparing to investigate the specific situation when they return. As for the representatives of Shuguang Group who were sitting at the special sponsors seat, and the representatives of the Ministry of Science and Technology who were sitting at the special guests seat, they couldnt hold back their smiles On the surface, this is just a collaboration between two companies. But in fact, as the revenue of supercomputing and server business continues to increase, Sugon Group can continue to feed back to almost the entire upstream after solving its own development problems. Especially the semiconductor manufacturing industry, which has been almost nipped in the bud since the 1980s. Although we are still in the process of purchasing foreign equipment and raw materials for simple OEM, in any case, we have rebuilt the entire chain from R&D to commercialization. This is almost a breakthrough from 0 to 1! (End of this chapter) Chapter 1002 Photographed an aircraft carrier? Chapter 1002 An aircraft carrier was photographed? With Chang Haonans announcement on the stage, the entire Numerical Algorithm and Computational Science Conference reached its climax. As for the reporting session that lasted for a day and a half... On the contrary, the attention is not that high. Nothing else, too professional. About half of the actual participants of this conference are from the enterprise side, and one-third of them are not professional and technical personnel. Since Chang Haonan intends to build the conference in the direction of discipline forward-looking, the report content is mostly theoretical. For those who can understand it, it is certainly a rewarding experience. But let alone the media and enterprises, even researchers in the field of numerical computing, if they are not specialized in the direction of the report topic, are likely to be confused. ?The only thing that was quite topical was probably that Chang Haonan, who was the first to give a report, had to fill in the gaps for Professor Jameson, who was the second to give a report. From a theoretical perspective, the former demonstrated the reasons why the finite volume method results in oscillation or even calculation divergence when faced with high calculation weight problems, and proposed a feasible solution. The only problem is that this solution requires solving the corresponding constitutive equation first. There is no universal format for this equation, and it can only be analyzed on a case-by-case basis. ??As for this process of "finding equations", excluding the unfavorable method of making your own wheels and brute force cracking, the most suitable calculation tool is... Version 2.0 of TORCH Multiphysics. It is already a murderous and heart-wrenching level. Professor Jameson, who came on stage later, almost finished the whole lecture without hesitation. ? He ??originally planned to take advantage of COMSOL''s victory in the competition and promote the FVM computing system he has studied throughout his life to the entire industry and all fields. result Promote, probably it can still be promoted. It''s just that he may not be the one to promote it... ??As for Professor Harold Huang, although his report on the application of compact high-precision formats did not cause as big a stir as the first two, the setbacks of COMSOL made the business community re-examine the rationality of its past technical routes. ?Hence, he finally felt proud. Although in the academic circle, it is still difficult to turn around after offending people. But at least it has re-entered the vision of many funders. For Harold, who had almost reached a dead end before, this was enough. ? And the entire conference came to an end with the vast majority of people enjoying themselves... For Chang Haonan, the previous conference was an interlude, and what happened after the conference was the main story. One week later. Beijing, Tanzhou Measurement and Control Station. Including Chang Haonan, Lin Senming, Luan Wenjie and others, almost all management and technical personnel related to Ocean One gathered here. In fact, this satellite, which has gone through many hardships and finally achieved success, had been launched as early as the end of March when Chang Haonan was still busy in the numerical calculation competition. ?According to the plan at the beginning of the project many years ago, Haiyang-1 will be carried on the same rocket as the Fengyun-1D weather satellite, and will finally enter working status after about half a month of orbit adjustment. However, due to many changes in the research and development direction during the process, especially after the addition of optical/radar sea surveillance test missions, the size of the entire satellite increased dramatically. So much so that the originally planned satellite platform cannot bear the full load. Fortunately, the Dongfanghong 4 (5-ton class) launched on this timeline was launched earlier, and the research and development speed was also faster. It was rushed and slowed down all the way. At least it provided a full-state engineering star for the Ocean 1 project. By the way, it is also considered as a platform test. ?At this time, a bunch of valuable precious equipment must be loaded in one piece. But the satellite problem was solved, and another trouble followed. ?Ocean One needs to work in a sun-synchronous (SSO) orbit. In the past, China usually launched satellites in SSO orbits using the Long March 4 rocket at the Jinyang Satellite Launch Center. But the SSO carrying capacity of the Long March 4B is only a meager 2.5 tons. Not enough. Therefore, we had to temporarily change the plan to use Long March 3B for launch in Yuecheng. The theoretical SSO transport capacity of more than 7 tons is definitely more than enough. ?But theory is theory. Changsanyi has not carried out a solar orbit launch mission before, so it is also a first time. In short, pulling one hair can affect the whole body. Almost everything that can catch up has caught up. After a series of adjustments, the launch time was limited to a narrow window in the last few days of March. As a result, Chang Haonan himself will definitely not be able to witness the launch process with his own eyes. Fortunately, there is still a period in between from launch to return and then to work. Chang Haonan is not a satellite designer, he is only responsible for two sets of software systems: satellite and ground. So, as long as he can be there when the satellite comes into operation for the first time. That is now. Director Luan, according to plan, the satellite has officially entered working status at 3:45 this morning, and the first batch of remote sensing photos will be sent back soon. The speaker was Zhang Weiyong, the chief designer of the entire Haiyang-1 satellite project. Will the first batch of photos definitely pass the screening? Luan Wenjie asked, turning his gaze to Chang Haonan. Since the content captured by Haiyang-1 is highly sensitive, it cannot send the imaging results to nearby receiving stations around the world like ordinary remote sensing satellites, and then the receiving stations transmit them to the Beijing control center through ground transmission means. Therefore, the communication window is much shorter. . According to the satellite-borne screening algorithm, if the photo does not capture the content of interest on the ground, it will not occupy the precious space-to-ground link to send it back. This still depends on luck. Chang Haonan explained: "Aircraft carriers are no better than merchant ships. They rarely follow fixed routes except for ports and straits. A single Haiyang-1 satellite can revisit the same location in the shortest period of 3-5 days. If you are unlucky, it will take half a day in a row. Its normal to not be able to find the target for a month or more. However, before each photo is transmitted back, the satellite will first send out an inquiry signal. The ground can choose to only accept the information that has been preliminarily screened by the satellite, or choose not to screen and accept all information. The reason why it is designed in this way is, on the one hand, to get the bottom of things - ??In case there is a problem with the identification algorithm, at least this satellite can be used as an ordinary ocean remote sensing satellite and will not become scrap metal. On the other hand, it is also considered that this satellite still has to undertake part of the scientific research mission. Luan Wenjie naturally understood the meaning of these words: So... what we are going to test right away is the state of receiving everything without filtering? Thats right. Chang Haonan gave an affirmative answer: After all, the satellite has just entered working mode. The focus is still on testing the basic functions of the equipment on it. As for whether the algorithm level is effective... this may need to wait for a while to try our luck. Cant we go and take pictures of ports, such as Yokosuka or Norfolk? A naval leader next to him asked: These are places where aircraft carriers are almost permanently stationed. And I remember, Comrade Haonan, you also demonstrated in the previous meeting that the algorithm can identify the special outline of the aircraft carrier under relatively complex background conditions. Photographing the port...of course you can ?Chang Haonan hesitated for a moment, then nodded: But its best to be similar to our expected use situation, which is to catch a target on the high seas. If we take pictures of ports, we will lose the meaning of our ocean surveillance system... Thats right ?The other party obviously agreed with this explanation. While a few people were chatting back and forth, time finally came to the planned first communication window. Report satellite data! ?Zhang Weiyong walked to the podium and gave instructions in a deep voice. Soon, a voice came from the hall of the measurement and control center: The self-test of spaceborne equipment and programs is normal, and the data is ready to be returned! Then, there was a few seconds of silence. As Chang Haonan said, this is the first time the satellite reports data. It takes about 10 seconds. ?But this time, the silence seemed to last a little longer. "Report!" The voice of the on-site staff showed a rare hesitation: Satellite reports indicate thatthere are currently 77,920 kilobytes of data streamed. At this point, he even swallowed his saliva before continuing: There are 16,540 kilobytes of data streamvalid. ??? "efficient?" Chang Haonan, who had just been inoculating Luan Wenjie, said that he might not be able to take pictures of effective targets for half a month, was a little nervous. Judging from the result, it seems that I was slapped in the face. But it seems that he was not beaten. The people around him were also in a daze because of this unprepared situation: Effective means that ? Luan Wenjie walked to the podium and looked at the display screen in the distance showing the words 16540 kilobytes/77920 kilobytes: "You mean...we really photographed an aircraft carrier?" (End of this chapter) Chapter 1003 Kitty Hawks whereabouts Chapter 1003 The whereabouts of the Kitty Hawk This situation was completely unexpected for everyone here. Several leaders from the Navy and the General Armament Department looked at each other, and then almost all looked at the people responsible for the research and development of Ocean One. The expression contained shock, confusion, questions and a little bit of doubt. The interpretation is probably - ??Isn''t this really what you arranged in advance? Ahem In the end, Chang Haonan was the first to react, cleared his throat, and explained: Technically speaking, it can only be said that there is an information flow in the remote sensing results that triggers the programs judgment mechanism. In order to ensure that there are no false alarms, we specifically lowered the threshold of the program before launch, so... it may also be a false alarm. After all, satellites are just a means of obtaining information. Ultimately, it is up to people to truly screen information and make judgments. Hence, for the satellite terminal, it is definitely better to have excess than shortage. Only content that is 100% sure to have no important information will be excluded, and as long as there is a 1% possibility of suspicion, it will be retained. This is what Chang Haonan just said. ?Of course, having said that, the main reason why I say this is to be on the safe side. ?The algorithm developed by him, even if the threshold is lowered, the accuracy is unlikely to be so low. So, not to mention the other people, even Chang Haonan himself was somewhat looking forward to it. But while looking forward to it, there are also some worries. Worry about the loss that will follow if your expectations are not fulfilled. But no matter what. The results are always worth looking at. ?So, the group of people who could no longer sit still stood up and quickly came to the big screen in the measurement and control center. Although the test plan is to have the satellite return complete data, since we caught up today, how about testing the algorithm developed by Comrade Haonan in advance? ? Luan Wenjie glanced at Chang Haonan and Lin Senming next to him. Strictly speaking, today is to test the basic functions of the satellite. In fact, it doesnt matter what is sent back, as long as the process is completed. So, the answer is naturally yes. ?Chang Haonan nodded and signaled to a staff member next to him to choose to send back only that part of the filtered information. 16540 kilobytes, which is actually a little over 16MB. Ocean 1s onboard storage capacity is limited to 80MB, which means that approximately one-fifth of the useful data has been captured. For a computer on the ground, 16MB is certainly a small amount of data worth mentioning. ?However, it will take a long time for the sky-to-ground link to transmit this data. And if all the content of nearly 80MB just was transmitted back, even one transmission window would not be enough. ?This is why a round of data screening needs to be done in advance on the satellite side. As a program that is not designed for the open market, it is naturally impossible for designers to put too much effort into those fancy UIs. Therefore, there is no transfer progress bar like Windows to visually show how much time is left. The atmosphere in the lobby of the Measurement and Control Center was a little depressing for a while. So much so that the air seemed to freeze. "Report!" ?Just when everyone almost lost the concept of time, a technician behind the console suddenly stood up and said loudly: Data transfer completed, visualization processing is in progress! With just one word, everyones restlessness disappeared in an instant. Several officers from the navy even stood up subconsciously. Data processing is much faster in comparison. After all, its only 16MB. It takes a few minutes. Quick, put the image on the big screen! Even Chang Haonan, who has always been calm, his voice was slightly distorted at this time. After some operations, a pair of... or strictly speaking, a set of photos appeared on the big screen of the measurement and control center. When a remote sensing satellite needs to take pictures of a wide area, of course it cannot be turned on all the time like a video recorder. Instead, it performs multiple imaging in divided areas, transmits the data back to the ground, and then stitches it together. The final effect may not be as good as once done, but the purpose of satellite remote sensing is not to take artistic photos, so in most cases it is enough. In an instant, everyone in the hall, except those who had work at hand and couldn''t put it down, focused their attention on this satellite image. However, even after one round of screening, the amount of information contained in the 16MB grayscale photo is still considerable. What everyone can see is still only a gray sea. There is almost no place for the eyes to focus. It seems that... you dont see anything? Someone asked in a less confident voice. Zoom in a little bit. ?Chang Haonan took a deep breath and ordered in a deep voice. Although the screen size of the measurement and control center is large, its resolution is actually average. ?? Tiny information on a large-size image can easily appear as several discontinuous pixels. Sure enough, after zooming in, as the focus position of the image continued to change, Chang Haonan soon discovered a long light-colored trace at a joint where the two images were spliced. "stop!" ?He quickly raised his hand and pointed to a location on the big screen: Look here! It seems like... its a track? One naval leader quickly speculated. ??The wake generated by the high-speed navigation of large ships may be pulled out thousands of meters or even tens of kilometers away. It is an excellent detection method for both satellites and submarines. After all, as long as you follow the wake, you will find the rightful owner sooner or later. Keep zooming in! ?Chang Haonan suppressed his excitement and tried to keep the tone of instructions calm. Sure enough, within a few minutes this time, everyone saw a blurry bright white shadow. Its a ship Someone wanted to evaluate the target model based on the visual effects, but as soon as he started talking, the voice stopped abruptly: "Boat?" This area is at the seam of the two frames. The angle is awkward. Moreover, it has been spliced ??in the post-production process. The imaging effect is mediocre. In addition, the resolution of the large screen is very low, which makes the outline of the shadow look...a bit abstract. . Even if it is said to be a ship, it is not entirely identifiable by its appearance. According to common sense, a thing sailing at high speed on the sea can only be a ship. As for what kind of ship it is... ?Thats really not easy to analyze. Comrade Haonan. ?After getting closer to the big screen and watching without success for a long time, the navy leader put on his glasses again and came to Chang Haonans side: "What do you think...is the probability that this thing will be the target of our interest?" Chang Haonan frowned slightly: Theoretically, the spaceborne screening program can judge the target attributes through some features that are difficult for the human eye to identify. In other words, the outline that we think is abstract may not necessarily be abstract in its view. But what the probability isI cant say "Um" ?The other person lowered his head, pacing back and forth while thinking. Not long after, he stopped again: Where is the location of this sea area? Soon, a technician reported the coordinates. As a naval admiral, he could interpret the approximate location of the coordinates almost instantly: East of the Philippines, north of the Palau Islands Then, he turned to look at another naval officer behind him: Staff Zhu, go check and see if there is any public information about which aircraft carrier is operating near this sea area. When not performing combat missions, the action routes and schedules of aircraft carriers, at least US military aircraft carriers, are not completely confidential and can even be easily checked from public websites. ?Of course, the specific coordinates at a certain moment can only be known through reconnaissance means such as ocean surveillance satellites or long-range reconnaissance aircraft. The officer known as Staff Officer Zhu acted quickly. In less than half an hour, we returned to the measurement and control hall from the outside. Reporting to the Chief, during the time when the satellite was photographed, the USS Kitty Hawk aircraft carrier had just left Manila and was on its way back to China for inspection and maintenance. Based on the navigation route and direction, its very likely that what we photographed was it! (End of this chapter) Chapter 1004 satellite gaze reconnaissance Chapter 1004 Satellite Staring Reconnaissance Kitty Hawk? Hearing this conclusion, the eyes of several naval officers in front of the big screen lit up almost at the same time. The expressions on his face are even more wonderful. In fact, just now, everyone has speculated on the nature of this goal. Just because they were worried about rejoicing in vain, no one dared to jump to conclusions. But now, with the news that happened to be released by the United States as circumstantial evidence, it is basically stable. ?This sea area was not a busy international waterway to begin with, but suddenly something with a size of about 300 meters * 40 meters appeared, and the course and time period were consistent. It is almost impossible to think otherwise. Finally ??The one with the highest rank among the people let out a long sigh, then walked to the big screen, put his hands behind his back, and stared up at the small, slightly distorted light-colored shadow. I dont know if its due to psychological factors. After hearing the news just now, when I look at it with the naked eye, it seems that the deck of an aircraft carrier has some angular appearance... I finally caught you He murmured to himself in a low voice. As the flagship of the Seventh Fleet for a long time, the Kitty Hawk has been active in various hotspots around China for most of its service life. ? ? Thanks to the fact that conventionally powered aircraft carriers do not need to undergo ultra-long maintenance and replacement of nuclear fuel, their effective operational time is much longer than that of their later nuclear-powered descendants. Especially since the 1990s, he has been acting as a vanguard. Although the Kitty Hawk did not appear in the most well-known incident in 1996, it had a confrontation with the Chinese navy and air force, which was fashionable and weak at the time, two years earlier in 1994. After entering the 21st century, due to the long service time and the fact that it went to the North Arabian Sea to participate in a round of Operation Enduring Freedom in 2001, it has slightly faded out of sight in the past two years. But no matter what, the Kitty Hawk is definitely an old acquaintance to the Chinese Navy. And its the kind thats not easy to deal with ?In terms of dispatch rate alone, aircraft carriers certainly cannot compete with land airports. With multiple models of second-and-a-half-generation and third-generation aircraft in service, the quality of the Chinese Air Force''s small-scale top combat capabilities is not inferior to those of the F14 or F18. But the problem is. As a mobile airport on the sea, aircraft carriers have unparalleled initiative. As a defender lacking countermeasures, China often needs to infer the whereabouts of the opponent''s fleet through public information as just now. Unless it docks at a certain port, this speculation is inaccurate ?Moreover, if others really want to do something, they will often hide it or even deliberately provide false fleet navigation information. In this case, only when the target is very close to the coastline, the opposite position can be tracked through sea detection radar or reconnaissance aircraft. However, the over-the-horizon radar is subject to principles, and its accuracy is generally very poor. It is difficult for reconnaissance aircraft to break through the air defense circle, intercept and rush to the opposite side. ?This is why, even when the navy was about to undergo a high-speed replacement, it still squeezed out part of the funds to support the technology verification project of Ocean One. However, todays experience can be described as ups and downs, with twists and turns. First of all, the first time Haiyang-1 was powered on, it actually captured a valid target. ?Before I could feel happy, a basin of cold water was poured down my head Few people thought that under certain circumstances, the imaging effect of ocean remote sensing would be so abstract. The imagined scenario where a large number of remote sensing images are sent back by satellites, and then are analyzed and judged by the staff unit, and finally a strike chain is formed. Obviously, it is not that easy to get around. On the other hand, however, the final results seemed to prove that the spaceborne program''s ability to identify target features was stronger than expected. The staff unit is under a lot of pressure, but the staff unit is not under that much pressure The effect of this satellite is almost as good as all the reconnaissance methods we used in the past..." Chen Da from the General Armament Department came up behind Chang Haonan: "Comrade Weiyong, and Xiao Chang, in your opinion, if we want to achieve uninterrupted continuous surveillance in the Pacific Ocean...at least the waters surrounding our country in the western Pacific, how many satellites like Haiyang-1 need to be launched?" Chen Dazhi served as deputy director of the Commission of Science, Technology and Industry for National Defense for a period of time before taking up the post of deputy director of the General Armament Department. Although he was transferred before Chang Haonan became successful, he was still among the first group of people to have contact with Chang Haonan. The title has thus been habitually retained. ?This somewhat sudden question made it difficult for Zhang Weiyong and Chang Haonan to answer for a while. Obviously, the equipment department is very encouraged by what happened today. So that I have some new ideas. According to the original plan, after the successful technical verification of Haiyang-1, the real ocean surveillance satellite will be developed and launched in 5-6 years. But looking at what it means now, users dont seem to want to wait anymore The two looked at each other, and it was Zhang Weiyong, a satellite expert, who gave his opinion first: Director Chen, if we want to achieve truly effective military reconnaissance and surveillance, we may not be able to achieve it by relying solely on satellites like Haiyang-1. "The sun-synchronous orbit satellite has an approximately circular orbit. The advantage is that a satellite can scan almost the entire earth''s surface in one day, and it scans the same point at the same time every day. As for Haiyang-1, it will scan at 9 a.m. every day. By passing through my countrys Kashgar Measurement and Control Station. "But the height of the sun-synchronous orbit is not high, and due to the performance of the current satellite equipment, it cannot provide a particularly wide viewing angle, so the range of each shooting is actually very limited... Such a satellite is more suitable for global coverage Monitoring, rather than revisiting a certain point frequently..." In short, achieving 24-hour uninterrupted reconnaissance and surveillance around our country is as difficult as conducting 24-hour uninterrupted reconnaissance and surveillance at any point in the world..." What about geosynchronous orbit? ? Chen Dazhi still refused to give up. He studied missile technology in school. Although he was not completely familiar with it, he was not blind. "Geosynchronous orbit can indeed ensure continuous monitoring of a relatively large range, but the orbital height is too high and requires very advanced imaging equipment... There is almost no demand for this type of equipment except for military use, and the core components are monopolized by the Americans. , even if we have good relations with Europe now, it will be difficult to get finished products. "In addition, even if the equipment problem is really solved, it will still require a very large satellite to carry it, and it will also require a large energy supply, and the weight will increase accordingly... The current Dongfanghong 4 is not enough in any case. In addition, to launch a behemoth of more than ten or twenty tons into geosynchronous orbit requires a heavy-duty rocket much larger than the Changsanyi..." Obviously, although China has developed quite rapidly in recent years, facing this kind of systemic backwardness, it is still not something that can be easily recovered. Looking at Chen Dazhi with an expression of "Master, please stop reading", Luan Wenjie, who is in charge of the development of the entire aerospace industry, shook his head helplessly and said comfortingly: "It''s not that there is no good news. Now the 10-ton Dongfanghong-5 satellite platform and several new launch vehicles with take-off weights in the 500-1,000-ton range have begun to be demonstrated. It is estimated that the project will be approved soon. The 20-ton I dare not say, but it shouldnt be a big problem to put a 15-ton object into geosynchronous orbit in the future..." Chen Da said frankly that you are coaxing children here. From the beginning of demonstration to the completion of research and development, it is normal to have a gap of more than ten years... ?But when he finished speaking, he looked at Chang Haonan, who was standing beside him with his head bowed in silence, and finally held it back. Actually...its not necessarily impossible. At this moment, Chang Haonan suddenly spoke: The current Haiyang-1 is a technology verification satellite, so the shooting angle of the on-board equipment is fixed and is limited to just below the satellite. If you want to adjust the shooting angle, you need to spend fuel to adjust the attitude of the satellite itself. But if we remove other functions from a specialized ocean reconnaissance satellite, and use the extra space and power supply to install a set of gazing equipment... it will be similar to a human neck... uh... or an owl''s neck." Chang Haonan felt that language alone might not be intuitive, so he asked a staff member next to him for a piece of paper and drew a schematic diagram with a few strokes: The shooting angle can be adjusted without the satellite itself moving, so that the effective reconnaissance time provided by one satellite will be greatly improved, and the number of satellites required can also be reduced to...probably single digits. (End of this chapter) Chapter 1005 network coding technology Chapter 1005 Network Coding Technology The idea put forward by Chang Haonan is not difficult to understand. Even now, some countries have actually begun to demonstrate the feasibility of this type of satellite gazing technology internally. ?Of course, it is not a simple matter for the device to continuously adjust the angle while maintaining the image quality. But compared with large-load satellites, heavy-lift rockets carry these things that require strong comprehensive national strength to support them. A single movable equipment platform is not enough for most countries with limited size but certain high-precision technologies on hand. Something you can achieve if you work hard. To put it bluntly, the basic principles of this thing and the multi-degree-of-freedom gimbal on the aiming pod are the same, and there are relatively few related front-end technologies. For China, whose current external environment is relatively good, it can also take the path of introduction-digestion and absorption. There are no completely insurmountable technical barriers. In this case...it can indeed extend the effective monitoring time of each satellite on key areas. Without the need for Chang Haonan to explain too much, Luan Wenjie quickly figured out the joints: "But the key point of military reconnaissance is timeliness. If a warship sails at full speed, it can travel about 100 kilometers away in an hour and a half, so it is definitely not enough to take effective pictures. It must also ensure that the things taken can be transmitted back in real time. OK..." "If the satellite is photographing the western Pacific Ocean over our country, that''s okay, but if the satellite itself is in the eastern Pacific Ocean, or even south of the equator... Even if the reconnaissance data can be obtained, it will have to wait for almost ten hours before the data can be re-entered. Transfer window Everybody who had just become excited suddenly calmed down again. ?However, Chang Haonan''s mentality was very stable, and he just sighed slightly: There is no way. Satellite surveillance is something that only superpowers can do well. Even if some efficiency can be improved through some tricks, core technologies such as inter-satellite links cannot be circumvented..." In any case, it was an unexpected surprise to be able to capture the location of Kitty Hawk today. As for the 24-hour surveillance of the sea areas surrounding China, it was entirely due to Chen Dazhis temporary expansion of mentality. So, after some ups and downs in mentality, everyone finally entered the celebration that was prepared before but was postponed to the present due to the interlude. ?Only Zhang Weiyong followed quietly at the back of the crowd, lowering his head as if thinking about something. Mr. Zhang? After chatting with Chen DaZhi and other acquaintances, Chang Haonan quickly noticed the slightly lonely figure behind him. It took three calls before the other party finally responded: OhMr. Chang Zhang Weiyong showed a somewhat embarrassed smile: Im sorry, I was thinking about something just now, so I lost my voice and didnt hear you. Still considering the issue of ocean surveillance system? ?Chang Haonan himself has actually been thinking about this matter, but he has become accustomed to multitasking, so outwardly everything appears to be business as usual. Ah...thats right. Zhang Weiyong nodded: Or strictly speaking, Im thinking about what you mentioned last about satellite relay communications. "Based on our current launch capabilities, it is indeed difficult to launch a large-scale reconnaissance satellite like a keyhole into geosynchronous orbit, but if it is just a communication relay satellite, only 3-4 satellites are needed. , it can meet the communication requirements between low-orbit satellites and between low-orbit satellites and the ground. "If such a relay constellation can be built, then in many aspects we can no longer pursue a single all-powerful satellite, but split different functions into a large number of low-cost small satellites, which is more in line with our current carrying capacity. level" After hearing the other partys explanation, Chang Haonan couldnt help but admire in his heart This idea of ??exchanging quantity for quality is considered a quite advanced concept even after more than ten years. ?Although the most famous thing under this guiding ideology in the future may be Starlink, in fact, China had already introduced the same idea in the field of remote sensing satellites long before the 2014 SpaceX. The product to be released is the "Jilin-1" optical remote sensing satellite constellation. It is ultimately planned to deploy more than 300 satellites to achieve the goal of revisiting any point in the world with a revisit period of less than 30 minutes. Almost close to real-time reconnaissance. Zhang Weiyongs ideas are even wilder. We must not only pursue efficiency at the information acquisition level, but also pursue efficiency at the information transmission level. For example, a satellite acquires a valid image information on the other side of the earth. ? Then there is no need to store it and wait for the communication window that can be as short as 90 minutes or as long as a few hours. Instead, the information can be immediately transmitted back to the control center on the ground through 2-3 relay communications. Completely reduce the timeliness of satellite reconnaissance to near the theoretical limit (that is, the revisit cycle). Communication relay star Chang Haonan lowered his head and thought for a moment: I remember that in the 921 Project, in order to solve the problem of insufficient coverage of measurement and control stations and measurement ships in our country, there seems to be a research and development plan for data relay satellites? Hearing this question, Zhang Weiyong looked at Chang Haonan with a slightly shocked look: I didnt expect you even knew this, Mr. Chang? "Well" ?Chang Haonan touched his chin awkwardly. Of course he couldnt say that he knew this twenty years later, so he could only explain it casually: You know, I have a good relationship with the Science and Technology Commission. When I applied for the Shenzhou-2 payload space for a project, I read some information from Director Luan... There is not a single punctuation mark in this sentence that is false, so Zhang Weiyong did not study it further: Yes, there is indeed one. He replied: And the project was only established at the beginning of this year. The internal plan is called Tianlian No. 1. I was just wondering if I could use these satellites of the 921 project to verify my idea in detail. ??For Chinese astronauts who started from scratch and have been frugal in the past few decades, it has almost become an instinct to make full use of existing resources and improve the cost-effectiveness of projects. But on the other hand, a high cost-effectiveness ratio means in most cases that the effect itself is actually mediocre Because the effect of reducing the denominator is much more obvious than increasing the numerator. Chang Haonan frowned after hearing this: Tianlian-1 is just to solve the problem of the space observation and control window period. The data bandwidth is quite average. Im afraid it is not very good at meeting the image and voice information flow needs between low-orbit satellite groups... There is no way...Actually, I am also struggling with this matter now. Zhang Weiyong sighed softly: The geostationary orbit is too far from the low earth orbit, which physically limits the bandwidth and delay Chang Haonan opened his mind directly: Have you considered allowing relay satellites to also operate in low orbit? "ah?" ?This method is indeed a bit unconventional for Zhang Weiyong: Not to mention how many satellites are needed... Even if the number is sufficient, there will be many data relay nodes in the communication network, and each node will cause signal attenuation and data transmission errors..." "It''s easy to say on the ground. Generally, the problem can be solved by repeatedly forwarding data. But if it is a satellite... it will bring a more serious burden to the network throughput and transmission efficiency... The final transmission effect may not have a small amount of synchronous orbit. Good luck with the satellite. As he spoke, Zhang Weiyong looked at Chang Haonan with slightly doubtful eyes. At the end of the sentence, my voice became a little unconfident. In his opinion, the latter, as a big man who has made great achievements in many fields such as control and mathematics, seems not to make such a low-level mistake. Is there anything else that can be done here? The other partys reaction was just as Zhang Weiyong expected: "If it is a general communication relay method, then there are indeed the problems you mentioned..." ?The group of people had actually entered the small canteen where the celebration was held. Chang Haonan did not forget to pick up a bottle of low-alcohol red wine from the side while he was talking, and poured a little for each of them. ?Zhang Weiyong took the wine glass, but before he could drink it, he heard the second half of Chang Haonan''s words: But Mr. Zhang may have heard of a new technology that was only proposed last year, called network coding? A little impression. He put aside the wine glass that had been brought to his lips: But I remember it seems to be used on routing equipment? Yes, but essentially valid for any information transmission node. Chang Haonan pulled Zhang Weiyong to sit next to him, and then took out the half-used piece of paper from his jacket pocket: Simply put, it is to introduce generalized coding technology of different information at communication relay nodes, changing the original meaning of the transmission of special data in the network into the transmission of network data streams, which can greatly reduce the impact on network bandwidth when information is transmitted. The occupation can also increase the cost of deciphering information. " Sounds... closer to a concept. ?Zhang Weiyong was obviously interested in this, but he did not show any particular excitement right away: Although I havent done any in-depth research, I think... the entire communication effect is probably highly related to the introduced generalized coding, right? Of course. Chang Haonan picked up the cup and took a sip: However, this happens to be the part Im better at (End of this chapter) Chapter 1006 maximum rank distance code Chapter 1006 Maximum Rank Distance Code In fact, Zhang Weiyongs earliest professional background was in communications technology. However, after he started serving as satellite chief engineer in the mid-to-late 1990s, his main focus was on the overall engineering aspect. ?Of course, even if he is still specialized in the original major, he may not have noticed the paper that proposed network coding in advance At the beginning of the 21st century, we are catching up with the explosion of network communication technology. Not to mention every day, at least every month, new concepts and new technologies are proposed, and almost every proposer claims that their research can change the world. Even a research team with abundant resources cannot pay enough attention to every result. Not to mention that Chinas aerospace research has always been focused on stability and is relatively conservative in the application of new technologies. But if it is a technology that has been proven in other industries...that is another matter. Therefore, after hearing Chang Haonans answer just now, Zhang Weiyong immediately sat up straight: Mr. Chang still has research on information theory? Data transmission and data compression are both categories of information theory. Chang Haonan has not had any research results in this area before. ?But after thinking about it, it seems that Chang Haonan has expanded into a new research field, which is not very surprising... Although network coding does belong to information theory, I came into contact with this field purely from a mathematical perspective... Chang Haonan smiled and explained: You know, I have done some research on topology and topological structures... Cough cough cough ?At this moment, Zhang Weiyong just picked up the cup again and took a sip of wine, but was choked by Chang Haonan''s words. A person who solved the Poincar conjecture and created a manifold learning algorithm. Say that you have some research on topology? ?That is really well researched. ?After a while, Zhang Weiyong finally calmed down and waved his hand to express that he was fine, and motioned for Chang Haonan to continue performing... uh... keep talking. "In short...some time ago, someone came to me to review a paper on nonlinear coding algorithms. I found that there were several very basic theoretical issues in his paper. It was definitely impossible to pass the paper, but the ideas proposed were indeed Its very novel, so I stopped by to learn about the research background. ?Chang Haonan drank a small glass of red wine and did not continue. Instead, he got a thermos from somewhere and drank water instead. While talking, he also poured a glass for Zhang Weiyong. So youre going to study it in depth? Research is out of the question. Chang Haonan shook his head: Things in the field of information theory are okay at the theoretical level. If you really want to study engineering applications, you will need enough time and funds. At most, I have a little understanding..." At this moment, Zhang Weiyong finally understood. ?The other party went around in such a big circle because he originally wanted to apply for the project with me, and then take advantage of the resources at the Aerospace Port. After all, not to mention that Chang Haonan is only a half-step academician now. Even if he is really a big brother in the Dzogchen realm of academicians, it is impossible for the country to build a batch of satellites or build an entire dedicated network just by talking about it. Carry out technical verification. Must rely on some names. Of course, Zhang Weiyong would not believe even a single punctuation mark in such nonsense as "I just learned about it and haven''t studied it in depth yet." Can you tell me more? He asked calmly: I mean, about that specific general code. "certainly." ?Chang Haonan turned the piece of paper to the back: "We first simplify a multicast directed acyclic network with single source and dual sinks. All point-to-point links in the network have unit capacity. S is the source, T1 and T2 are sinks, and the rest are intermediate nodes... " As he spoke, he drew two schematic diagrams on the paper. "According to the ''maximum flow minimum cut'' theorem, in any directed graph, the maximum flow of information from the input node to the output node is equal to the capacity of the minimum cut set that separates the input node from the output node. Then the multicast network in the figure below The maximum theoretical transmission capacity is 2 bits/unit time..." "If we follow the traditional model in the picture on the left, since link CD is the bottleneck of the network transmission, it can only transmit 1 bit of information. As a result, node C must use the traditional queuing storage method to realize information transmission, resulting in the throughput of each sink node. The amount is only 1.5 bits/unit time..." "In the picture on the right, node C encodes the received message a and message b... For simplicity, we choose the simplest XOR logic. In short, the sink node can use the received message a or b, and the relationship between a and b. The encoded result simultaneously decodes another unreceived message bit, thus reducing the transmission of one information stream and increasing the throughput of each sink node to the theoretical upper limit of 2 bits/unit time..." "Of course, due to the existence of the Shannon limit, it is impossible for any technology to compress data infinitely, but this is just the simplest case. You and I both know that the more complex the information transmission network is, the difference between the actual throughput and the theoretical transmission capacity will be. The wider the gap, the more obvious the potential of this type of algorithm..." "Wait a moment" Just when Chang Haonan was coming to the end of his speech and the paper was finally almost full, Zhang Weiyong suddenly stretched out his hand: "Mr. Chang, what you just said is based on the premise that the transmission process is error-free... If any of the nodes on the right has a coding error or transmission error, then the subsequent nodes will be infected, causing errors like a computer Like a virus, it eventually spreads to the entire communication node..." Not to mention that such errors are very common in normal communications. Military satellites also need to consider the opponents electronic interference..." The latters concerns are naturally justified. The traditional information relay method repeatedly sends data. Although it will cause lags and delays, the correct information can still be sent. ??But for this new trick that Chang Haonan is planning to do, if something goes wrong in the intermediate encoding and decoding process, the relevant data may be wrong. ??Moreover, because errors propagate so quickly, its difficult to figure out which step caused the problem. In the end, you still have to send the data repeatedly, which will only make it more laggy. ?However, when faced with this problem, Chang Haonan acted as if it were a matter of course: Thats why I said that in-depth research and technical verification are still needed... If I can come up with ready-made technology now, then there is no need to go to you, I can just go to Director Luan directly..." ?Zhang Weiyong scratched his head and felt that it made sense... "In short, Mr. Zhang, you just mentioned that the focus of this technology now is to develop encoding algorithms with stronger compression capabilities. The second is to find ways to find an error correction mechanism for the information transmission process, so that even if the data is being transmitted If an error occurs, it can be corrected at the next node, ensuring that the error will not spread between different nodes. ??Chang Haonan said, reaching out and tapping the paper lightly for emphasis. At this point, we enter a field that Zhang Weiyong is relatively familiar with: For examplemaximum rank distance code? MRD code is indeed possible. ?Chang Haonan was a little surprised that the other party could directly give him the answer he wanted, but there was no change in his expression: However, the current research on MRD is mainly focused on using it for data encryption, and the error correction function is only incidental...So if you want to achieve strong error correction capabilities, you must develop new MRD code technology. "I can use the resources of the Torch Group to conduct some research and testing in the field of small-scale local area networks and aviation relay communications. However, these environments are still too mild compared to satellite communications. I definitely need a... or even It is a group of specialized satellites to conduct inter-satellite link testing to finally determine the feasibility of use in the aerospace field..." (End of this chapter) Chapter 1007 air force data link Chapter 1007 Air Force Data Link ??Zhang Weiyong understood the meaning of Chang Haonan''s words almost immediately: You mean, we need a practice series satellite... uh... preferably a satellite group? Thats right. ?Chang Haonan finally fully unfolded the map of Yan State and revealed the "dagger" in it. Immediately afterwards, he also emphasized one sentence: And, I need to be in the drivers seat. Hearing this unabashed idea, Zhang Weiyong almost subconsciously held his breath and opened his eyes slightly. You must know that the "practical" scientific exploration and technology test satellites are a specialized series. Specially launched for a certain item or type of technical testing. ?For example, Shijian-1 demonstrates satellite long-term in-orbit technology. The Practice-2 Group verified the satellite''s independent power supply and temperature control technology, telemetry tracking capabilities, and ionospheric environmental composition. ?Shijian-4 verifies the space radiation environment... Obviously, they are all basic research closely related to the application of aerospace technology. However, from the launch of Shijian-1 as a backup satellite for Dongfanghong-1 in 1971 to 2002, China has only launched a total of 5 batches of 7 Shijian series satellites in 31 years. Hence, trivial projects will definitely not get this kind of treatment. At most Ill give you a lift Not only are you not involved in the R&D and operation management of the satellite itself, but even the control of the satellite equipment you install is in the hands of others. Just sharing the data with you. This is obviously completely unacceptable for most projects. ?Hence, even such ruthless work as the ocean surveillance system first took advantage of the launch of Haiyang-1 to have the opportunity to go to space for technical verification. ?Later on, the supporting role became the protagonist, and the Ocean Bureau was pushed to the sidelines. That was another story... In any case, Zhang Weiyong, as the satellite chief engineer of the aerospace system, has never dared to have the idea of ??"testing the water with a practical satellite for a certain project." And Chang Haonan, an "outsider" to the aviation system, actually opened his mouth to such a big job... Its actually a bit ?Zhang Weiyong originally thought that newborn calves are not afraid of tigers. But after careful consideration, I found that the manager Chang in front of me was only young, but he had a lot of work experience. ??He is a hard-core person who is 26 years old but has 6 years of work experience. Thinking about it again, I found that although the other partys idea seemed wild, it was not unworkable. Compared to a relatively narrow application field such as ocean surveillance, communication technology can be said to be one of the cornerstones of modern human civilization. And relay communications are as important as air, water and bread in today''s global network era. For a moment, Zhang Weiyong also had some ideas. As a human being, there is no difference between having no dreams and being a salted fish. ?However, if he said such a thing, it would definitely not count. ?Even Luan Wenjie couldn''t do anything. Mr. Chang, this matter still needs to be considered in the long term... Zhang Weiyong immediately became serious and suggested based on his understanding of this system over the years: To become a practical verification star, the technology application must first be broad enough, and the other is operability... Application is not a problem Chang Haonan said almost without thinking: Network coding technology solves the shortcomings of insufficient bandwidth and long delay in traditional communications...At present, almost all communication methods are troubled by these two problems. Not only inter-satellite links, but also terrestrial wired networks, radio equipment, data links, industrial sensors, underwater acoustic communications...anyway, they can all be used. "Of course, network coding technology requires relay nodes to have encoding and decoding functions in addition to forwarding, so the size and cost of the equipment must be much higher than now. For civilian networks where bandwidth restrictions are not serious and stability is not a concern, Generally speaking, the cost-efficiency ratio may be relatively low..." ? Packet loss while playing games, lagging while watching movies... Although it is also very annoying, if the cost of solving the problem is to spend ten times the price to buy a router and pay the Internet fee, it may not be very popular with users. So, the entire technology is basically for commercial and military use Zhang Weiyong had already taken out a notebook from somewhere, and while recording it, he concluded: But its enough. Although the civilian network is large in scale, the market is actually limited..." ?Chang Haonan wanted to correct the other party''s thinking, but after thinking about it, it was only 2002, and it would not affect the things at hand, so he gave up in the end. "Then it''s feasible...it needs to be tested on the ground before going to the star..." Halfway through his words, he was interrupted by Chang Haonan waving his hand: Mr. Zhang, as I said just now, you dont need to worry about these previous issues. "Our group still has a very tight task at hand, which is to approve a new model project in April. After this busy period is over, I will first verify the MRD code combined with network coding on a new model of the Air Force. The engineering feasibility of the technology ?The "new model of the Air Force" mentioned by Chang Haonan actually refers to the large-scale early warning aircraft that has been transferred to research and development. Like the previous life, it was named Air Police 2000. ? Its just that the carrier aircraft was changed from the IL-76 to the C909 that has been modified for long range, that is, the luggage compartment space is replaced by a fuel tank. ?For the sake of stability and the formation of combat effectiveness as quickly as possible, this model still chooses a relatively traditional active phased array configuration, and the array is designed as a back-to-back C-band/L-band double-sided array. As for the more radical optically controlled phased array, it will be verified by a small balanced beam antenna that is being carried out simultaneously but mainly for foreign trade. Wait until the performance is completely stable before considering exporting to domestic sales. ??Although it is an electronically scanned radar, the disc-shaped radome of the Air Police 2000 can still rotate at the fastest speed of 6 revolutions per minute. It is not for scanning, but for adjusting the angle to make up for the blind spot in the field of view caused by the double-sided array. In addition to the performance improvements that will naturally come from platform upgrades, Chang Haonan is also preparing to introduce the Air Force data link system to Air Police 2000 for the first time. Of course, since there are currently not enough communication satellites, aircraft can only use direct transmission in most cases, or rely on ground relay stations to exchange data, and the effective range is relatively short. Only about a few hundred kilometers. ??But for the Chinese Air Force, whose main combat areas are concentrated around the country and whose mission is mainly active defense, this is still a huge improvement ??Due to the short development time and relatively hasty service, the previous Air Police 200 can provide reconnaissance and early warning functions, but it can only share data and command through radio voice communication. In other words, the target discovered by the Air Police 200 is just information of "azimuth xx, distance xx, quantity xx" to the fighter pilot. Although AESA can update the target situation hundreds of times per second, the commander''s speaking speed is always limited. Hence the information is still not real-time and accurate enough. ??As for the targets discovered by the Air Police 2000, even if the fighter jet does not turn on the radar due to concealment considerations, or the target is far outside the detection range of the fighter radar, it can still be displayed directly on the multi-function display through the data link. ?In terms of paper data, there may not be much difference whether there is a data link or not. However, the timeliness and intuitiveness of information have been greatly improved. Absolute combat power multiplier. This Air Force data link is almost an excellent opportunity to verify network coding technology. ?Zhang Weiyong, as a professional in satellite development, is not aware of the twists and turns in the early warning aircraft project. But seeing Chang Haonan''s resolute attitude and obviously having a plan in mind, he decided to follow the other party''s arrangement after hesitating for a moment: Then what I should do next "Mr. Zhang, your next task is to carry out some pre-research work from the aspects of space launch and satellite design. In particular, you must prepare all relevant information. After I get the engineering verification data, you can complete the project as soon as possible and transfer it to Officially developed! Hearing this request, Zhang Weiyong could not help but frown. Its not that he finds the job difficult. On the contrary, its actually too simple Mr. Chang, I will definitely do this kind of thing even if you dont have to tell me. I just want to ask, is there any more... important work? ?Seeing him look so calm and relaxed, Chang Haonan smiled. Obviously, the other party doesnt know what he means by as soon as possible. If there is no force majeure interference, I hope to put the satellite into space within two years O ?Zhang Weiyong almost spit out the water before he could swallow it. He originally thought that the other party wanted to officially launch the project within two years. result ? ? ? (End of this chapter) Chapter 1008 Is this the beginning of an integrated power system? Chapter 1008 Are you starting to build an integrated power system now? ?Zhang Weiyong put down the cup with a "numb" expression on his face, and at the same time punched his chest hard twice to calm down the breath he had just been having. "You wait a minute, you wait a minute..." After he recovered, he quickly stopped Chang Haonan from continuing: Mr. Chang, with all due respect... "For a satellite constellation consisting of three satellites, let alone preparations for project approval and proof of principle, etc., even if we skip these steps and establish the project today, from the beginning of research and development to the smooth launch into orbit, it will be a long time. It takes about two to three years..." Thats why I set a two-year goal... ?Chang Haonan''s answer was obvious, but it seemed that Zhang Weiyong was a bit unusual and strange. Notbut The latter didn''t know how to respond for a moment, and he hesitated for a long time without uttering a word. In the pre-research stage, we can also do some things... Looking at Comrade Zhang who was a little nervous, Chang Haonan gave some guidance: "The low-orbit communication relay satellite does not need to be very large. 24 transponders are enough. Dongfanghong-3 should be a very mature platform now. I can first provide you with some hardware requirements for network coding technology. It is best to The overall satellite design can be solved on paper before the project is approved. After the project is officially approved next year, only equipment debugging and software and hardware adaptation will be required. It is not an exaggeration to complete it in two years..." Zhang Weiyong said nothing. Just looked at Chang Haonan dumbfounded. Good guys, other peoples pre-research is to study the feasibility, and at most add some demonstrations of key technical nodes. Essentially, it is a process that is more management than technology. As far as the results are concerned, the pre-research is to complete half of the project, right? Chang Haonan also saw Zhang Weiyongs uncertainty, so he cited his past successful experience: Dont worry, I did the same thing when I led the team to develop the turbofan 10 and the heavy-duty die forging press. The initial funding is definitely insufficient, but by combining past development experience and technology to reduce some unnecessary experiments, progress can still be pushed forward normally Next, Chang Haonan spent about ten minutes sharing some of his experiences with the other party. Its hard to say whether it had any actual effect, but in the end Zhang Weiyong agreed to his proposal. The first formal test of Ocean One ended with such an "unexpected gain". Throughout the following April, Chang Haonan prepared for the project establishment of the QC300 gas turbine as he had planned. ?As the chief engineer of the project, he is responsible for relatively few specific technical tasks, but most of the coordination and management tasks fall on his head. ?Especially matters related to cooperation with Shipbuilding Industry 703 After the previous seminar, the top leaders of both groups quickly approved the proposal to cooperate in the research and development of a new 30-megawatt power gas turbine. Considering that both the Navy and the 701 Institute responsible for the overall design preferred the second option at that time, which was to continue to make in-depth improvements based on the 052C and enlarge the hull to an 8,000-ton class, the baseline research and development for cooperation was finally determined. for QC300. In other words, Shipbuilding Industry 703 will participate in the research and development of QC300 in the form of technical investment. Mainly involved in the design work of the casing and the intercooler. But the model dominance is still in the hands of Aerodynamics 606. In fact, it is equivalent to completing the selection. Its just that the 703 Institute that failed in model selection can also obtain part of the funds and profits to support its continued localization and upgrade of GT25000. It can be considered a happy ending. In this case, it is equivalent to directly completing the project proposal and feasibility study. As for the preliminary design The QC300 is a turbofan 10 aeroderivative. The latters current performance in the Air Force is the best preliminary design illustration. Hence, the project approval was naturally passed smoothly. It did not even alarm the Science and Technology Commission or even higher-level leaders like the Turbofan 10 did. The project was finalized by only four direct participants: the General Armament Department, the Navy, the Aviation Power Group and the Shipbuilding Industry Group. After the project review meeting, the deputy chief engineer sent by the 703 Institute slowed down and found Chang Haonan: Mr. Chang, please stay. The latter was packing his things and getting ready to leave. When he heard someone calling him, he followed the sound and looked over: Ohits Mr. Changshan ?He stopped what he was doing and turned to face the person: If you have something to say, please tell me. It is a coincidence that this deputy chief engineer also has a surname of Chang, and his name is Chang Shan. In fact, it is not uncommon for the first and second leaders to have the same surname. Just call Mr. Chang and Mr. Xiao Chang respectively and thats it. At the beginning, thats what everyone called it. ?Until one day, when Chang Haonan and Chang Shan were standing together, someone called Mr. Chang. Then they both raised their heads at the same time... The chief engineer is much younger than the deputy chief engineer, which is sometimes a problem... So later, everyones name for Chang Shan was directly changed to General Chang Shan. The situation in Changshan is very special. The 703 Institute sent him here not to compete with Chang Haonan for project leadership, nor to cooperate with Chang Haonan''s work. Instead, it is related to another project Changshans area of ??expertise is not gas turbines, but transmissions. The alternating diesel-fuel system on 052B/C was developed by him. The transmission efficiency is very high, and more importantly, the mean interval between failures far exceeds the design requirements, and the evaluation is quite good. Hence, he naturally became the chief designer of the transmission system of 052D. In the new model, the "chai" in the alternation of diesel and combustion has not changed. Hence Changshans main job is to adapt his transmission system to the QC300. ?Just then he ran over and asked for his name. To put it bluntly, he, the deputy chief engineer, did not participate in the actual work of the project, just to fully understand the situation of QC300. Therefore, being specifically stopped by Chang Shan today was somewhat beyond Chang Haonan''s expectations. Thats right. ?Chang Shan sat opposite Chang Haonan. ?Perhaps because the two of them are not familiar with each other, their movements are a little stiff: I heard from Chief Engineer Lin Qinglin of the 701 Institute that, Mr. Chang, you have designed a fault fusion diagnosis system for the Type 054 frigate before? Chang Haonan actually felt a little strange when the other party suddenly mentioned this matter. ?However, after thinking for a while, he still replied: Strictly speaking, it was actually designed for the LNG ship at the Hudong Plant, and 054 just took advantage of it. After all, if there is a problem with the LNG ship...especially if there is a problem with the cargo tank or the overall structure, it will be a big deal, so we considered the safety of the entire ship and designed such a system. "So, although it is called a fault fusion diagnosis system, it actually focuses on several aspects of structural safety, and its functions are still slightly limited when used on warships... For example, the combat system cannot be included in the diagnosis, including the power system, and Only the approximate location can be diagnosed, and engineers still need to conduct detailed inspections. If you are engaged in transmission, you should know...the power part of a ship is generally relatively independent, and the ships electricity is another set of things. Hearing this, Chang Shan couldnt help but nod: Yes, I know that. Actually, I came to you specifically today to ask, can this fault fusion diagnosis system be made more complete? ?Chang Haonan did not reply, but looked slightly confused. That is to say, in addition to fault location technology, is it possible to add functions such as fault control management, fault prediction and risk assessment, and even fault self-healing? Chang Shan further explained. ?Chang Haonan slowly sat up straight. ?The idea proposed by the other party is very close to his ultimate goal when developing this system. But since it is said to be the ultimate goal, it means that it is indeed more difficult to do it now. It can actually be realized at the algorithm level ?He touched his chin and considered his words as he answered: "However, each system of the entire ship must be highly synthetic, so that the system can obtain the overall situation of the ship in an all-round way. In addition, one to two orders of magnitude more sensors are needed than at present, and the computing performance is no less than that of a supercomputer. The main control computer, these things...it is difficult to provide enough energy with just two diesel generators. "In addition, automatic fault repair cannot be done by repairing the hardware. We can only delay the outbreak of the fault as much as possible by adjusting the equipment working parameters after discovering the hidden fault. However, this requires the ship to achieve fully automated control... " In short, it is not difficult in principle, but in terms of engineering, there is no ship that can meet so many requirements at the same time... so there is no place to install it. Chang Haonan finally concluded. Thats Mr. Chang. At this time, Chang Shan showed a somewhat mysterious smile: What if I say...it will be available soon? "Um?" Chang Haonan was immediately surprised when he was suddenly asked a riddle. Chang Shan, who had something to ask for, did not continue to sell out: Our 703rd Institute, Shanghai 704th Institute, Bingcheng Engineering University and Naval Engineering University are preparing to build a technology verification ship together, integrating power and ship electricity into one, and integrating them into one system for management. "In this way, the ship is equivalent to being driven by electricity, and the gas turbine or diesel engine is decoupled from the propeller. It can always work in the highest efficiency range and obtain faster response speed and stability; and because the high-power power machine directly generates electricity, Therefore, the power supply is no longer a problem, which is equivalent to directly solving all the problems you just mentioned..." ?At this time, it was Chang Haonan''s turn to be stunned by others. So much so that he didn''t fully hear the last few words Chang Shan said. ?The thoughts in my mind almost blurted out: Noits only 2002, and youre already considering building an integrated power system? (End of this chapter) Chapter 1009 Real sea and air are linked Chapter 1009: True sea and air coordination Faced with Chang Haonan''s shock, Chang Shan''s reaction was... More shocked The former was shocked that someone was preparing to launch an all-electric verification ship so early. The latter was shocked at how Chang Haonan seemed to know this stuff very well... After the two of them stared at each other for a few seconds, Chang Shan said while thinking: Integrated power system is a good name and very general. Chang Haonan then realized that at this moment, domestic research on integrated power systems should still be in a relatively early stage. So much so that there is a high probability that there is no definite noun to define it. My unintentional remark may have led to the birth of this concept. ?Of course, in the final analysis, its just a name, so its not that important. ?What Chang Haonan is really concerned about is what he, or his research group, can do It has only been three years since Torch Lab was established, and the first batch of students have not yet graduated. Therefore, there is only revenue but no revenue, and the overall scale is also growing year by year. ??As for the LNG ship at the Hudong Plant, it has now passed the initial problem-prone period and entered a relatively stable stage. In most cases, it is enough for several graduate students to take turns to keep an eye on the situation and report it in a timely manner. It is equivalent to liberating Liu Fangping and Lei Zhixing. Originally, Chang Haonans next arrangement was for the two of them to gradually transition to non-contact magnetic bearings and research on permanent magnet fault-tolerant power generation systems ?These two people are both from the mechanical industry. It is perfect that they are responsible for sending traditional rotor bearings (and their fellow students in the same major) to the grave. The only problem is that Torch Laboratorys technology accumulation in this area isrelatively limited. Chang Haonan has indeed tried to apply a permanent magnet fault-tolerant power generation system on the SeA650 engine, but on the one hand he only verified its feasibility, and actually retained a complete set of mechanical rotor bearings. On the other hand, in addition to the design itself, it was designed by himself and Except for the 606 Institute, most of the core components have been selected from foreign suppliers. Even so, as its core power generation equipment, the relatively simple, mature and reliable switched reluctance motor was still chosen. To realize the high power density performance of this kind of motor in a wide speed range, it is necessary to establish a large gap to adapt to material thermal expansion and mechanical spacing specification requirements. Therefore, the output performance is poor and the volume is difficult to further compress. A more ideal choice is a permanent magnet motor. However, let alone Torch Laboratory, even if we look around the world, there are no particularly mature technologies and products. ??Germany, the United States, Britain, Russia, and Switzerland each have related models, but they are all experimental equipment, and the reliability and volumetric power density are generally not ideal. In addition, as SeA650 is an international cooperation civil aviation engine, the scope of supplier selection can naturally be broadened. ?However, most of the projects of the Aerospace Power Group still involve, even specifically for military use. The large amount of bearing support parts requires a stable supply, and it is impossible to count on imports for everything. So, no matter from which perspective, you have to find a way to get the permanent magnet motor yourself. ? And this opportunity to participate in the research and development of integrated power systems is just like giving me a pillow when Im drowsy Although there are still hundreds of millions of differences between warship power and aircraft power, when it comes to integrated power systems, one of the key technologies is the permanent magnet propulsion motor. Of course, it is impossible for products to be directly moved to Hangfa, but the technologies are always the same. Therefore, Chang Haonan simply asked bluntly: I dont know if its convenient for General Manager Changshan to disclose it, but what specific step have you taken so far? If we are very pressed for time...our laboratory can first send a technician with relevant engineering experience to assist..." Chang Shan looked at Chang Haonan, who was suddenly more proactive than himself, and felt a little nervous: Its not enough to keep up with the progress... He waved his hand: At present, this project is mainly led by Academician Ma. It is the first project he led after being elected as an academician, so it is very stable. Hearing this name, Chang Haonan thought to himself that it was true. ??Academician Ma Weiming''s name is definitely well-known even though he had little interaction with the navy in his previous life. At the beginning of the century, Academician Mas name had not yet become a household name, but he was actually a leading figure in the field of ship power supply systems. Being elected as an academician of the Academy of Engineering in 2001 was largely due to the ship power supply system he developed, which won the first prize of the National Science and Technology Progress Award the previous year. ?Of course, in the current timeline, Chang Haonan and Ma Weiming have not had direct intersection, and they certainly cannot show that they understand each other too well. ?Hence Chang Shan on the opposite side did not notice any clues and just continued calmly: We just completed the feasibility study at the beginning of this year and are still discussing whether to choose a medium-voltage AC solution or a medium-voltage DC solution, so the next step is to conduct a round of ground experiments in Jiangcheng. "After the technical route is determined, you can just send people over... Anyway, these early tasks have little to do with the specific technology research and development, or... Instead, we need to eliminate external influences and see which solution has greater advantages... " ?Concerning the choice between DC and AC, Chang Haonan knew from the perspective of hindsight that the correct answer should be the former. Furthermore, even based on his own needs, he would definitely choose the former AC technology can continue to use land-based power system equipment. Engineering development only needs to solve problems such as equipment shipping adaptability improvement and full system integration. The engineering implementation is easy, but it requires high speed regulation performance of the prime mover and an increase in system power density and power supply frequency. Limitations make it difficult to compress the volume and weight, and the parallel connection conditions of alternating current generator sets are harsh. It is only suitable for objects that do not have high power density requirements and are powered by the same type of power supply. ??If the shipbuilding industry says your thing is too big, it must be really big. Americans have chosen communication technology that seems to be a shortcut out of their confidence in their own technological research and development capabilities. Then it creates a bunch of problems. Of course, DC systems also have technical difficulties such as high system integration, strong nonlinearity, and tight coupling of electromagnetic characteristics. But these parts are concentrated at the power control system level, which happens to be the part that China is good at, and the solution is at least not as difficult as the AC system. For a moment, Chang Haonan had the urge to speak out this set of analysis conclusions directly. Fortunately, I got it under control in the end. Not necessary. On the one hand, even if Chang Haonan is now famous, it is impossible for other naval engineering systems to directly change the project plan just because of his words from an outsider. On the other hand, Chinas technology research and development in the field of integrated power systems has basically never encountered particularly catastrophic setbacks, and there is a giant like Ma Weiming at the helm. In this case, allowing them to go through the entire R&D process normally is a necessary condition for accumulation. So when the words came to his lips, he changed it to a question: So what Changshan means is that we need Torch Group to complete the fault fusion diagnosis system and install it on the verification ship? Thats right. Chang Shan nodded: Although integrated power systems are good, all technologies have two sides. "Centralized management and centralized distribution of energy throughout the ship means that system risks affect the whole body. Once the power system fails, it is not only the ship''s electrical system that is affected. In the most serious cases, it may even cause the entire ship to be damaged. The ship is paralyzed!" So, in addition to reducing the failure rate as much as possible on the hardware and setting up enough system redundancy to ensure that there is still a backup after a failure, we also hope to estimate the risk of failure of the entire ship before a failure occurs. , solve the problem in the bud. From this incident, we can see that projects led by big bosses are indeed different. The problems are clearly sorted out, the solutions are clear, and there are multiple backups. ?Reduce project risks to a minimum. ?It is no wonder that China in the previous life was able to catch up from behind in the field of ship electrical systems. Fault fusion diagnosis first requires a sufficient understanding of the electrical design of the entire ship, so I cant guarantee anything until I see the specific plan. Chang Haonan did not take over everything, but answered very cautiously: "So... after you select a specific plan, I hope to send a technical team, or at least a technical representative, to join your project and track the development of this technology verification ship throughout the entire process, instead of just being a provider. Party B of the subsystem. This is equivalent to the exchange conditions proposed by Chang Haonan. Chang Shan also understood instantly and pointed at himself: Like when I was in the QC300 project team? Almost. Chang Haonan replied: "I don''t insist on occupying the position of deputy chief engineer...but the people I send there must join your project decision-making level." After Chang Shan heard this, he hesitated for a moment: Your request is indeed reasonable, but I am not the project leader, so I cannot agree on behalf of the entire team. But I will report the situation to Academician Ma. He personally asked me to talk to you about this matter, so I shouldnt refuse..." Since everything has been said to this extent, it is basically equivalent to agreement. Its just that there are some administrative procedures to go through later. "Now, we can be regarded as literally having me among you, and you among me." ?Chang Haonan joked half-jokingly. Chang Shan was stunned when he heard this statement, and then he laughed too 703 institutes have now participated in the QC300 project led by the Aerospace Power Group. The Torch Group will later send people to join the research and development of integrated power systems hosted by Shipbuilding Industry. It belongs to the linkage between sea and air. After some joking, Chang Haonan stood up and stretched out his hand towards the other party: Then...wish us happy cooperation in advance? Its a pleasure to work with. (End of this chapter) Chapter 1010 Three-dimensional reconstruction of the Air Police 2000 platform Chapter 1010 Three-dimensional reconstruction of the Air Police 2000 platform ?While Chang Haonan himself was busy with the establishment of the QC300 project for a month, Torch Group was also dealing with the aftermath of the Numerical Algorithms and Computational Science Conference. First of all, it is natural to officially release three different versions of the TORC Multiphysics 2.0 software ?In addition to the previously existing professional version and professional enhanced version, Torch Group has also launched the "pre-sale" of the Dawning version of the software in advance at the strong request of many users. That is the version bundled with Sugon 3000T. In fact, when Chang Haonan announced the Dawn Edition at the opening ceremony of the conference, he didnt think that many people would actually buy it. After all, although Sugon 3000T is a streamlined supercomputer, it is still a behemoth with 10 sets of cabinets and a weight of 5 tons. For most small and medium-sized users, as well as foreign users, it is not convenient to purchase such a set of things. In addition, as the first supercomputer in China that has truly reached the international mainstream level, it has very strict performance requirements for components. At the same time, Sugon Group, as the current leader in the domestic semiconductor industry, needs to increase the localization rate of its products as much as possible. High performance means difficult production. For the nascent domestic semiconductor industry, even if it uses the same imported equipment and raw materials as others, the yield rate is still not very optimistic. After the localization rate increased, the cost not only did not decrease, but actually increased. Of course, this problem is still secondary. After all, Torch Groups products have never focused on cost-effectiveness, and the core user base doesnt care much about price. The key is lead time. ??During the Dawn 1000 era, Beijing Hang University inadvertently set off a wave of universities buying supercomputers and servers. ?However, at that time, the mainstream was still importing foreign products, and Shuguang Group only got some soup. Even so, it still helped Shuguang Group, which had suffered huge losses for many years, turn losses into profits. Avoiding being sold to the Dream Group is second to none. More importantly, for the first time, it has opened up a complete cycle of product research and development - market launch - revenue generation - continued investment in product research and development. By the dawn of the 2000s, due to the influence of the Qinghai-Tibet Railway and the West-East Gas Transmission Project, this craze was inherited by many central enterprises in monopolized industries. Shuguang Group has also accumulated a considerable number of users in this process. As a result, before the Sugon 3000 series supercomputer passed the project acceptance, more than 30 users, including Torch Group and Aerospace Power Group, had placed orders for more than 50 units. It has not been delivered yet. Hence, the delivery time for the Dawn 2000T ordered now will not be until the end of the year at the earliest. For many users, this cycle seems a bit too long. ?Taking these factors into consideration, Chang Haonan initially planned to release only two versions of Pro and Proplus. As for the Shuguang version, we will wait until the end of the year when it can be delivered. ?However, the situation was far beyond his expectation. In fact, as exchanges between China and Western countries have become closer in recent years, even the Proplus version, which was only available to some domestic units in the past, has gradually opened up its rights to foreign partners with sufficient specifications, such as Kompas and Tupolev. , Snecma and Dassault used. ? But even so, there are still many users who are unable to obtain Proplus rights, or are dissuaded by its outrageous price, who have shown great interest in the Sugon Edition Even though the Sugon version is sold in a bundle, the Sugon 3000T itself is a supercomputer with performance among the top 100 in the world, and the software is equivalent to a gift, so it is not a loss at all. Even more cost-effective than buying a Sugon 3000 alone. ?Before the end of the two-day Algorithm and Computational Science Conference, the number of users who came to inquire about this version and clearly expressed their intention to order was close to three figures... In the end, Chang Haonan, who couldn''t stand his over-enthusiasm, had no choice but to open the pre-order channel in advance and promised to deliver products in the scheduled order starting from the end of the year. ?Compared with the colleagues who sold cars at press conferences before the rebirth, the only difference is the policy of "50,000 deposit equal to 100,000 advance payment". ?However, the situation faced by Chang Haonan is that there are too many orders and he is worried that the orders will not be delivered, so there is no motivation in this regard. In short, when the conference was over and Chang Haonan saw Academician Li of Shuguang Group one day in early April, he had no doubt that if the age difference between the two was not so far apart, the latter could perform a "Jie Piao Ling" for him on the spot. For half of my life, I just regret that I have never met my master..." In addition to releasing a new version of the software, another thing is the numerical computing-graphical modeling alliance jointly established by Torch Group, Dassault Systmes, and Kompas. In the past, TORCMultiphysics also supported the direct import of models from modeling software in various mainstream formats. ?However, anyone who has experienced the barbaric period of the software industry at the beginning of the 21st century knows this. Compatible does not mean easy to use. ?Especially after Torch Group upgraded their mesh generation technology many times, some old 3D models gradually became seriously "acclimated". So much so that before automatically generating meshes, the model building nodes need to be specially adjusted. but. ?After the formation of this software alliance, the three companies will completely open interfaces to each other to achieve maximum data compatibility. Actually, this has been implemented in the new version of TORCMultiphysics. For users, there is no change in the performance of the software itself. But it has brought exponential improvements to the user experience and work efficiency. The first project to benefit from this software alliance is exactly what Chang Haonan has been thinking about Air Police 2000 At almost the same time as the QC300 project review meeting was held. Jinling. A conference room in the 14th Institute of Electrical Engineering. A technical discussion on the design of the Air Police 2000 is currently being held. It was said to be a technical seminar, but not many people participated. There were less than 10 people sitting on both sides of the long conference table. On one side is Academician Wang Xiaomo, the chief scientist of the National Early Warning Detection Project and the general manager of the Air Police 2000 project, and two other leaders from the General Armament Department and the Air Force Equipment Department. Opposite the three people, there are Guo Lin, who has been promoted to deputy director of the 14th Institute and director of the Antenna and Microwave Department, and chief designer of the radar system, five other heads of key subsystems, and an empty seat. ?This seat originally belonged to Liang Shaoxiu, who was seconded to Haofei Group as the chief engineer of the platform. He stood behind the desk from the beginning of the meeting, and then he never had time to sit down and rest... The reason for all this has to go back to Liang Shaoxius first sentence: Dear leaders, our platform design team has successfully completed the three-dimensional reconstruction of the C909 carrier aircraft itself and the disc-type radome, and has separately calculated the carrier aircraft and the plan after the radome is installed on the carrier aircraft..." Originally, this was just a monthly routine technical meeting. But as soon as this sentence comes out, the nature is completely different. Comrade Shaoxiu, I remember... during the meeting last month, you said that this work would take about 4-6 months to complete? ?Wang Xiaomo and Guo Lin have seen this kind of sudden rapid progress in the past. ?But after all, the person standing on the stage today is Liang Shaoxiu and not Chang Haonan... So its really a huge surprise. Thats exactly what happened last month... ??The reason why Liang Shaoxiu chose to reveal this news during the meeting was because of the influence of Chang Haonan. At this time, he finally experienced the pleasure of "shocking his colleagues for a whole year": Because the modeling and calculation workload of the radome is not large, the focus is still on the aircraft. "Actually, we have received aircraft design data transferred to us from Hufei Group before. However, these data all came from Tupolev. Although the annotations have been translated into Chinese, the file format is not fully compatible with the CATIA we used in the past. , so it was expected to take several months to correct the format. And importing the CATIA model into the numerical calculation program requires about the same amount of proofreading and modification work...Compared with these two processes, CFD and CSD calculations take up less time. But after we actually started working, we found that solving the compatibility problem was not as difficult as we expected, so we released the results ahead of schedule..." This explanation made the people sitting below not sure how to evaluate it. After a while, Wang Xiaomo waved his hand and signaled Liang Shaoxiu to continue. The latter didn''t talk nonsense and continued to refer to Chang Haonan''s habits. Lets make a big conclusion at the beginning: Judging from the results, after the C909 passenger aircraft platform has raised the vertical tail and installed two tail fins, it is still difficult to carry the ellipsoidal radome with a diameter of 10.5 meters and a thickness of 1.9 meters in the planned plan 3. "When the radome is set 2.8 meters away from the fuselage, the degree of downwash airflow generated by the wing will increase, resulting in a reduction in the angle of attack of the horizontal tail relative to the actual airflow, and a reduction in the lift generated by the horizontal tail. The maximum effective lift coefficient of the aircraft will be reduced to 1.107..." When he said this, the air in the entire conference room almost froze. ??Electronic Science and Technology Department No. 14 has preset three radar plans for the Air Police 2000, with diameters of 10.5 meters, 9 meters and 8 meters respectively. Even though the array area that can be accommodated by the same radome has increased by about 30% after changing from a three-sided array to a double-sided array, no one will find the antenna size too large, especially when the packaging technology is relatively backward. Hence, the project team still regarded the 10.5-meter radome as a priority solution. ??And if the calculation results prove that it is not feasible, then there is a high probability that the next best option will be made. ?However, Liang Shaoxiu did not worry everyone for too long. After a brief pause, he changed the topic directly: However, we tried to adjust the shape of the radome so that it could generate some lift while keeping the cross-sectional area unchanged, and then conducted a new test ??As he spoke, he clicked the mouse, and the cross-section of the radome on the curtain immediately changed into an ellipsoid with a slightly flatter bottom: After lift compensation, the influence of the radome on the maximum lift coefficient of the entire aircraft is reduced, only from 1.193 in the clean configuration to 1.178, which fully meets the design requirements! (End of this chapter) Chapter 1011 New requirements from Mr. Chang Chapter 1011 New requirements from Mr. Chang ??For this kind of immoral behavior of speaking loudly and focusing on the words after the big breath, the rest of the people in the conference room immediately violently criticized in their hearts. That is to say, the elders sitting here are relatively strong. ??If you are looking for someone with a bad heart, after listening to the first half just now, you will probably need Suxiao Jiuxin Pills. ?However, considering that Liang Shaoxiu advanced the project schedule by half a year at a time, everyone is not really dissatisfied. Suppression first and then expansion, joy is definitely still the main thing. Especially Guo Lin, who is another chief designer. As a replacement product that has absorbed many experiences and lessons learned during the development of the Air Police 200, the development process of the radar system of the Air Police 2000 can be considered straightforward. Ground testing began even more than a year ago. ? Even the rotatable radome encountered more technical difficulties than the radar itself. However, no matter how realistic the ground simulation is, it is impossible to completely restore the situation in the sky. Otherwise, Air Police No. 1 would not have been hastily dismounted. It can be said that the entire Air Police 2000 project is mainly waiting for the platform. The platform problem is solved and the finalization is not far away. ?However, Guo Lin is a pure electronic engineer after all. Even if he has collaborated with Chang Haonan several times before, his research objects are mainly equipment such as airborne pods, not the aircraft itself. In contrast, Wang Xiaomo, who has been exposed to some aircraft designs through Air Police 200, needs to consider issues more comprehensively. Comrade Shaoxiu, you just mentioned that the downwash airflow generated by the wings increases, resulting in a decrease in the lift generated by the horizontal tail..." Although modifying the design of the radome can make up for the total lift, the position of the radome and tail is different after all, and it is impossible to adjust the deflection angle. Will it affect the trim and pitch control of the aircraft? Compared to the T-shaped radome of the Air Police 200, which almost only needs to consider the impact of crosswinds and structural strength, the large disk not only expands the radar detection angle of view, but also brings a lot of aerodynamic troubles. In particular, the C909 is smaller in size than the Boeing 707 and IL-76, but the 10.5-meter radome is larger than the E3 and A50U. "As for the trimming issue, while the radome provides lift, it is also one of the main loads of the aircraft. It can affect the lift center and center of gravity of the aircraft at the same time. We have specifically tested the balance of the flight platform under different flight attitudes to confirm the current The design will not adversely affect aircraft trim. "As for the pitch controllability... because the impact of the downwash airflow causes the relative angle of attack of the horizontal tail to decrease, and the pitching moment provided by the horizontal tail is generally negatively related to the angle of attack, so unless it is in a very negative angle of attack attitude , otherwise the pitch controllability is almost similar to that of the C909 platform with a clean configuration, but it is even better at a positive angle of attack above 6..." Liang Shaoxiu said and released a highly restored model of the Air Police 2000 early warning aircraft: After calculation, after combining the radome, the net stability margin of the entire aircraft is still 10.7%. Although it is slightly lower than the data of the clean configuration, it will basically not affect the flight quality. At this point, maybe he felt that it was not too rigorous, so he added another sentence: At least it will not have a greater impact than the deterioration of heading stability... ?In addition to the body itself, the core of the aircraft''s directional stability is the vertical tail. However, after carrying an oversized plate, the stability effect will definitely be affected. Even though Liang Shaoxiu specifically lowered the height of the radome by 15 centimeters, raised the vertical tail, and added a pair of tail fins, he still could not fully restore the driving feel of the C909 itself. However, this is an unavoidable problem for all traditional configuration early warning aircraft. Fortunately, the aircraft''s directional stability has a large redundancy, and as a strategic support platform, the Air Police 2000 will rarely have a flight attitude with extremely large inclination angles and sideslip angles, so it is not unacceptable. Mr. Liang, when can the flight test start? After Liang Shaoxiu finished answering Wang Xiaomo''s question, Guo Lin, who was sitting opposite, could no longer restrain his eagerness to give it a try. Although he has served as the person in charge or chief designer of many projects before, these were mostly small projects. Even the air-drying 200 pod back then was not at the same level as today''s early warning aircraft in terms of the level of attention it received from its superiors. It can be said that as long as the Air Police 2000 can be delivered on time, Guo Lin can firmly occupy the position of "successor of Academician Wang Xiaomo". Now that the overall design plan has been basically determined, the next step is to do wind tunnel testing Liang Shaoxiu replied: But we have a set of methods developed by... uh... Mr. Chang, so the time for blowing the wind tunnel will not be particularly long. If nothing else happens, it will probably be completed before the end of the year..." ??Although Chang Haonan''s identity has now become the leader of a friend next door, his experience and standards in the aviation industry system still play a role. By locating the performance boundary as soon as possible, the wind tunnel test plus flight test cycle can be roughly shortened to about half of the original time while ensuring the reliability of the test results. Hearing this answer, Guo Lin finally breathed a sigh of relief. Fortunately, it was within his expectations. But Liang Shaoxius next words made his heart hang in the air again: "The biggest problem at the moment is the platform itself. The first C909 aircraft that Hufei Group is responsible for final assembly has just rolled off the assembly line and started test flights. According to the initial plan, they will deliver a mass-produced aircraft to us as a modified aircraft before the end of next year. platform, so it is very likely that it will not be able to keep up with our accelerated progress..." ?This time, not only Guo Lin, but also Wang Xiaomo frowned slightly. It would be a pity indeed if everyones efforts to meet the schedule are wasted because of waiting for the delivery of the aircraft. After thinking again and again, he turned to look at the leader of the General Armament Department next to him: Can you consider coordinating with the relevant units to first deliver us a Tu-214K that will be assembled by Tupolev, so that at least the prototype can fly? Figure 214K, where K stands for ڧѧ. It is also the Figure 214 designed and manufactured in accordance with China Aviation Industry Standards. Used to distinguish it from the earlier Figure 204/214S produced with the Russian standard. ?There is almost no difference between the two models at the aerodynamic and structural levels, except that the former has been equipped with a two-person cockpit and a new avionics system. So in order to improve production efficiency and worker training efficiency, Tupolev finally stopped the production line of the old model. Instead, Tiangangdi began to deliver aircraft produced according to the Tu-214K standard to Aeroflot. ? As a result, Aeroflot, which had already adapted to Airbus and Boeing models, quickly expressed that it was really good, and even had a tendency to force the Russian standard to move closer to the Chinese standard... According to the original supply contract, before the domestic version is delivered to China, several airlines such as United Airlines that plan to purchase C909 will also receive a small amount of Tu-214K first to adapt to pilots and ground staff. train. It shouldnt be difficult to take one out and give it to the Haofei Group. ?Sure enough, although the leader of the General Armament Department did not immediately give a clear response, he also said that he would make an application to his superiors after returning. Even if we cannot deliver ready goods, we can at least ensure that one of the next batch of aircraft delivered within the year will be used as a transformation platform... The discussion on aircraft design finally comes to an end here. As for the radar part that Guo Lin is responsible for, there is actually no need to make any progress since last month. ??There are only routine startup test records. Reports can be submitted regularly, and there is generally no need to report them specifically at a seminar. ?But today, after Liang Shaoxius report, Wang Xiaomo did not immediately announce the end of the seminar. Xiao Guo, please wait a moment. He said as he took out a file bag from his briefcase and handed it to Guo Lin, who had already started packing his things: A brother unit has submitted a new test request to us for the Air Police 2000 airborne equipment. Take a look. ?The other partys description made the latters eyes flash with a hint of surprise: Testing request from brother unit? Generally speaking, when it comes to major core projects, we will try to avoid unnecessary complications in the middle. At present, the airborne equipment of the Air Police 2000 has almost completed ground testing. It is definitely not something ordinary people can do to incorporate new functions or technologies at this juncture. With such doubts, Guo Lin took the file bag and opened it. Inside is a document that is not too thick. The first thing that catches the eye on the cover is a line of large characters Feasibility Test of Application of Network Coding Technology in Airborne Data Link Communication System Want to develop an airborne data link? ? Guo Lin had an expression on his face like "Why didn''t I know about this?". Just when he was about to raise his head to ask Wang Xiaomo about the specific situation, he accidentally glanced at the sponsoring organization at the bottom of the cover - China Aerospace Power Group. All the confusion just now was gone in an instant. Thats not surprising ?Guo Lin thought in his heart. ? He ??quickly opened the document, which briefly introduced the installation of an additional data transmission antenna on the Air Police 2000 to realize real-time information interaction between the early warning aircraft and the forward fighter. Of course, currently it can only be done through direct transmission or ground relay transmission, so the effective range is limited. ?However, this test is to prepare for the future launch of high-throughput communication relay satellites, so satellite transceiver antennas will be reserved at the hardware level. As for fighter jets ? New batches of J-10A and J-11B will also be equipped with the same antenna, while older batches or older models can temporarily solve the problem through a pod. So... our 14th institute needs to integrate the search information of the early warning aircraft radar into this airborne data link communication system? ?Guo Lin raised his head and asked tentatively. Thats right. ?Wang Xiaomo nodded: "Although I also think that relying on ground stations for data relay... there may be too many intermediate links, but Comrade Haonan said that he has a way to solve the problems of high transmission delay and low transmission rate caused by multiple relay nodes. Let''s Don''t worry." In addition, the current system only requires one-way, that is, transmitting the information from the early warning aircraft to the fighter jets for reception. It should not be difficult for your 14th institute, but the complete form in the future will definitely require two-way. "Based on what I know about Comrade Haonan, I suggest you make a plan in advance. It''s best to get it right in one step... at least leave space for upgrading the two-way data link. Otherwise, I''m afraid that if you wait a few more months, his plan will be over. Its ahead of schedule again (End of this chapter) Chapter 1012 Communication relay platform Chapter 1012 Communication Relay Platform Although Chang Haonan wrote in the document that he relied on "ground stations" for communication relay, this was just a general term used to make it easier for superiors and comrades in fraternal units to understand. In fact, the node responsible for communication relay does not need to stick to the formality. After all, under the premise that low-orbit relay communication constellations will be planned in the near future, it would be a waste of resources to really spend a lot of money to build expensive fixed communication sites in border and coastal areas. To put it another way, even if this is not considered, the fixed relay station itself is a relatively fragile target in wartime and can easily be taken care of by imaginary enemies. Hence, after the project was officially approved, Chang Haonan actually invested in research and development, mainly on two platforms. The first is the stratospheric airship, which was developed under the leadership of Zhejiang University and has performed brilliantly during the embankment building operation. ?This is already a fairly mature technology, and Zhejiang University has not stopped upgrading and improving the equipment in recent years. ?In addition, its original design purpose was to serve as a communication relay platform, which can be said to fully meet Chang Haonan''s needs. ? Even the overall architecture does not need to be significantly modified, as long as the encoding-decoding function is added on the basis of the original simple reception-storage-forwarding function. Since its floating height is more than 20,000 meters, which is much higher than the general flying height of early warning aircraft, it can be used as a simulated satellite unit during testing to test the antenna performance of the upper hemisphere of the aircraft. ?Of course, because the distance is closer, the signal strength and signal-to-noise ratio are definitely still much stronger than real space-based communications. ??Moreover, the relay station itself is relatively stationary and cannot completely restore the scene of space-based communication. This is why Chang Haonan had to ask Zhang Weiyong to build the satellite. Another platform is a vehicle-mounted ground communication relay station. ?Compared to the stratospheric airship, its function is weaker and it is subject to stronger clutter interference, but it can achieve "communication while moving", that is, communicating while moving. It is used to test the antenna performance of the lower hemisphere, while simulating the constant motion of the satellite platform and the weak signal characteristics. The vehicle chassis does not require additional research and development. It can be modified directly with the SX2190 truck, which has a huge number of copies. If necessary, it can also be directly moved to other models. As for the research and development of the entire vehicle-mounted relay station, Chang Haonan neither chose the 14th Institute of Electrical Engineering, which is responsible for the research and development of Air Police 2000, nor the Space Technology Research Institute, which is responsible for satellite research and development. Instead, he found the 54th Institute of Electrical Engineering in Shimen. Or strictly speaking, it was the leaders of the Electronic Technology Group who took the initiative to recommend them to Chang Haonan. Because the 54th Institute is currently developing a series of satellite communication/scatter communication vehicles for military communication units and emergency rescue units. Although it is not completely consistent with Chang Haonan''s needs, the similarity is at least 90%. And the technologies are interlinked. Chang Haonan had no objection to this. ??The technical difficulty of the hardware level of this communication relay vehicle is not high, and the core algorithm of the software is still developed by him, so it does not require the partner to have strong capabilities. As long as the execution ability is strong enough and the ability to learn is sufficient. ?Besides, as a network communications research institute, the 54th Institute is not an idle bunch. So, about a month after the QC300 project was completed, one day at the end of May, Wu Wei, the head of the general department of the 54th Institute of Electrical Engineering, took a core team of four people to the capital to find Chang Haonan in person. . The latter did not beat around the bush and stated his demands straightforwardly. ??In Chang Haonan''s office, Wu Wei looked at the densely marked technical information in his hand and showed a somewhat embarrassed expression: Mr. Chang, using ground vehicles as communication relays for aircraftstechnically it is not difficult to achieve, but ?He said while carefully considering his words: But considering the size and power limitations of the vehicle platform, the range may not be particularly optimistic... Communications have always been about transmitting information from high altitudes to far distances, so most of the ideas are to use aircraft in the sky as relays on the ground. This was the first time in Wu Wei''s life that he had heard of the reverse request. It doesnt matter, this is the effect I want. Chang Haonans answer is even more shocking: If the transmission range is too wide, it will be inconvenient to test the theoretical throughput performance of a multi-hop network. Looking at Wu Wei, whose eyes almost popped out, he had no choice but to continue explaining: "This kind of test, whether for confidentiality reasons or to reduce the impact on normal production and life, must be far away from the city, so the test area will most likely be placed in the northwest, with a maximum range of two to three hundred kilometers. I There must be at least three jumps in the middle, so the working range of the vehicle system basically meets the requirements...the airship has to specifically reduce the power. ??The amount of information in this paragraph took Wu Wei a few minutes to digest before he fully understood Chang Haonan''s ultimate goal: Sothe network coding technology you just mentioned is prepared for multi-hop communication? Thats right. ?Chang Haonan nodded, then raised his finger and pointed at the information in Wu Wei''s hand: "If you turn two pages further, there will be relevant technical instructions." The latter quickly lowered his head and turned to the position he mentioned. Of course, there is nothing much to say about network coding technology itself. You are an expert in this field. You must have studied it...at least you have understood it. At this time, Chang Haonan continued: The real core of our test is to use maximum rank distance codes to provide sufficient error correction capabilities for the network coding transmission process to ensure that information can still be transmitted accurately even under strong interference caused by opponents...or the natural environment. " Whats the MRD code? ?Wu Wei put the information in his hand on the table and made a thoughtful gesture: "When the scatter communication vehicle project was first established two years ago, I also studied this technology. It can detect and correct errors in the matrix data structure. The error correction efficiency can be improved by five orders of magnitude compared with the traditional low-density parity check code (LDPC). Compared to Zhang Weiyong, who specializes in satellite systems, he obviously has a deeper understanding of this aspect. As long as you have done some research. ?Chang Haonan put down the pen he was holding: Not only is it error correction capability, but technically speaking, MRD code is also an encryption technology that is almost impossible to crack, which can greatly improve communication stability and security. The reason why he emphasized that technically speaking is because no encryption method can stop physical theft. In a system, the most reliable and weakest link is always people. But Mr. Chang, our research at that time was all completed on the supercomputing end ?Wu Weis frowned brows still didnt relax: "The encoding and decoding process of MRD codes relies on check matrices and generator matrices. It is very complex and its efficiency depends heavily on computing power. Even for supercomputers, the cycle to complete an encoding-decoding cycle sometimes has to be calculated in hours. , if you want to apply it to real-time communication, will the computing power requirements for the relay equipment be too high..." Chang Haonan was not surprised by this result. In fact, the reason why the maximum rank distance code, an artifact with incredible effects, was proposed as early as 1985 but has never been put into use is mainly because the encoding and decoding process is too complicated. The technological breakthrough he achieved was precisely in this part. I think... what you were testing was Gabydulin code? "Yes." ?Wu Wei nodded: After all, it is the most classic maximum rank distance code. However, we have also tested several variants of Gaby Dulin code. Generally speaking, the efficiency is improved compared to the original version, but it is not very obvious..." But the maximum rank distance code I want to test is not entirely based on the concept proposed by Gaby Dulin..." ?Chang Haonan picked up the pen he had just put down again: The technical details about this part... are too long and cannot be explained in one or two hours. I will give you a special technical document later... "But to put it simply, it is to introduce a new concept called the self-duality of the maximum rank distance code... uh... similar to the orthogonal concept of the matrix, that is, when an MRD code C and its dual code C are equal, We believe that it has self-duality. Under the premise of meeting certain conditions, an MRD code must be equivalent to a self-dual MRD code..." "Combining this concept, we can design a fast decoding algorithm for Gaby Dulin code... Of course, it can also be a fast decoding algorithm for other MRD codes, that is, for the adjoint formula S and i=t, t-1, t-2... Calculate the matrix Mi and the determinant det(Mi) until the first occurrence of i=m such that det(Mi)0, where m is the rank of the error vector e..." "Furthermore, we can let legitimate user A choose matrices S, Secret Matrix, so security can be greatly improved..." Although it was "in simple terms", Chang Haonan still spoke for almost half an hour. This is based on the premise that Wu Wei has sufficient encryption algorithm foundation. In other words, we use traditional encryption methods to transmit the asymmetrically encrypted message itself, and then use asymmetric encryption to transmit the key required for decryption. This can reduce the amount of data that requires error correction by the relay station and ensure transmission efficiency? ?Wu Wei tentatively confirmed. ?Chang Haonan nodded happily and leaned his upper body back on the chair. ?Now, the latter at least understands the technical route part. As for the specific algorithm level... This cant be rushed. Even he himself, with the help of the system, spent almost a month on this. I have tested this MRD code combined with network coding technology in a small-scale wired network. Chang Haonan said lightly: The result is that in a four-route multi-hop network, the actual transmission capacity can be increased by about 15-20 times, but the processing delay is a little higher and has to be calculated in seconds. However, for satellite communications or space-to-ground communications, because the bandwidth is too low, transmission delay will replace processing delay as the dominant factor, and the actual displayed delay... will be reduced instead! (End of this chapter) Chapter 1013 Five times is not enough! Chapter 1013 Five times...not enough! Now that the technical principles and specific research and development routes have been clarified, the 54th Institute of Electrical Engineering has moved quite quickly. ?This is also due to the fact that the other party has been working in the field of terrestrial mobile communications for many years. As the two most important projects at present, the vehicle chassis communication equipment has actually entered the testing stage long ago. It''s just one of the satellite communication vehicles. Since China''s own communication satellites are poor in number and performance, their performance has been limited. After receiving Chang Haonan''s project request, the 54th Institute only took about three weeks to complete the hardware transformation of four prototype vehicles, making them equipped with complete reception-decoding-storage-encoding- forwarding function, becoming a true network coding data node. ?Just for the convenience of testing, the decoding and encoding modules are designed to be completely physically shut down to minimize the performance impact of additional hardware on the control group. As for the procedures for encrypting and decrypting information Thats not even a problem. ?Chang Haonan has conducted tests on wired networks before, and the program at that time can be slightly modified. In contrast, although Zhejiang University''s actions are not slow, they do not have any extra stratospheric airships on hand. Whether it is to build new ones or to lower the ones already floating in the sky to collect weather data, it will take time. The progress has lagged behind. ?However, Chang Haonan is not prepared to change his plan because of this. Principle verification does not matter whether it is in heaven or on earth. . Therefore, after the acceptance of the four modified relay communication vehicles, Chang Haonan sent them to the predetermined test area in western Mongolia Province. As for why it is Meng Province Because Torch Group has a huge test field here. Since Comrade Zhuang Bingchang has not yet successfully developed alfalfa and soybeans that meet the requirements, and Chang Haonan himself has not yet found a polymer material that can provide sufficient shear resistance for the sand, this land has not really started to play a role yet. But after all, the right to use it belongs to Torch Group, and there are no large towns hundreds of kilometers around, so it is easy to get approval for radio transmission testing. The only problem is that in 2002, there was no highway network that later spread across the country, especially in the relatively remote areas of the central and western regions. So the four vehicles were first transported by rail from the capital to Qingcheng City, the capital of Mongolia Province, and then traveled hundreds of kilometers on their own. It took nearly a week to get there. ?Of course, during the whole process, dedicated personnel from the Torch Group and the 54th Institute of Electrical Engineering were responsible for escorting the vehicle, and Chang Haonan did not need to follow him personally The latter''s work schedule does not allow him to waste so much time on the road. ? As the general person in charge of the project, Chang Haonan only flew to TMTZQ Biqi Airport the day before the test. Then on the morning of the next day, he transferred to a Z-12 helicopter belonging to the Air Force Search and Rescue Brigade of the Beijing Military Region and arrived at a general aviation airport near the test site. When the helicopter landed, Wu Wei and others, who had already arrived here in advance, were naturally waiting near the apron. General aviation airport mainly serves various types of helicopters, as well as small gadgets such as transport 5. ?The site conditions are naturally much worse than those of common civil aviation airports. Even the runways and aprons are unpaved surfaces that have only been hardened. Chang Haonan did not have much experience in helicopter rides before. So, he jumped out of the cabin as soon as he confirmed that the helicopter had stopped. Immediately afterwards, I was blinded by the dust that had not completely fallen back to the ground... Fortunately, the people who were picking up the plane were far away, so they were walking over slowly and hurriedly, and did not notice Chang Haonan''s little embarrassment. Report to Mr. Chang. ?Wu Wei came to Chang Haonan: According to the previously determined process arrangement, the four prototype vehicles have completed all inspections and are just waiting for you to officially issue the test order! Not far behind him, four SX2190 chassis communication vehicles were parked in groups of two under two sheds made of camouflage cloth. Looking at the somewhat gray-faced people in front of him, Chang Haonan took a deep breath, took two steps forward with emotion, and shook hands with Wu Wei: Thank you for your hard work. Following the formers eyes, Wu Wei lowered his head and looked at his earth-colored clothes: ifier=Where is this going?a??a? We wish we were out on business trips for ten months a year. Weve never seen anything like this... weve long been used to it. Speaking, he reached out and brushed off the dust on his clothes. But the effect is obviously not very good. So I had to change the topic: "Mr. Chang, the logistics comrades at the airport here have left lunch for you. Look..." ?Chang Haonan didn''t eat much in the morning. It was already past noon, and he did feel a little hungry. ??But after looking at the four test vehicles in the distance with even the disk antennas deployed, I still felt that there was no time to waste: Pack up the whole lunch box for me, and find an empty space to take a sip during the test... Four communication relay vehicles, according to the test plan from easy to difficult, will start from being 5 kilometers apart from each other, and gradually extend the distance in steps of 5 kilometers, until the distance is 30 kilometers apart. ?Subject to the influence of the height of the antenna and the curvature of the earth, the maximum distance for direct communication of this type of communication vehicle is 30 kilometers. Any further away, you have to use scattering communication means. On the contrary, it is not conducive to the conduct of today''s test. ?As Chang Haonan officially ordered the test to begin, cars No. 2, 3, and 4 left the parking lot in sequence and drove west along a dirt road. Vehicle No. 1 does not need to move as a signal transmission source. At this time, several technicians have begun to erect antennas and raise the mast. The initial communication test with an interval of 5 kilometers did not require this thing. But the latter is essential. A few minutes later, Chang Haonan also entered the compartment of Car No. 1 with Wu Wei. In fact, a conference room was specially set aside at the airport tower as the test command center. ?However, in order to see the results as soon as possible, Chang Haonan chose to get on the bus in person. ??Although the road conditions on unpaved roads are very poor, one hundred kilometers is not a very long distance for a vehicle after all. About half an hour later, the farthest car No. 4 also reported that it had arrived at the predetermined location 15 kilometers away. So. The first round of testing has officially begun. First of all, it is naturally the control group. In other words, according to the traditional relay model, the relay station only receives and forwards data but does not process the data. All cars are in place! From the radio, the voice of the on-site test commander Fu Mingyi came: Car No. 1, start sending data! For a time, in the originally noisy carriage, only the hum of the air conditioner and communication equipment was working, and the breathing sounds of a total of four people, including Chang Haonan. The data content used for the test was set by Chang Haonan in advance, so the operator did not need to input anything on site. Just select the content on the operation interface and then send it. ?However, after all, the program took less than a month to compile quickly, so there was no need to consider issues such as UI interaction. Let alone others, even Chang Haonan himself was a little nervous looking at the slightly crude interface. Fortunately, the basic functions are quite complete. ?It didnt take long for the data transmission to come to an end. ?There is no doubt that even without looking at the specific results, you can tell just by feeling that the results are not optimistic - Network throughput is not the "average network speed" as commonly understood. The test method is not to transmit a certain amount of data files and then divide it by the final time. Instead, it sends a certain number of frames at a certain rate and calculates the transmission speed of the device under test. frame. If the two are equal, then increase the sending rate and retest until the number of frames received is less than the number of frames sent, and the corresponding rate is the network throughput. Hence, it can basically be considered that the shorter the test time, the worse the results. ?In addition, it is not difficult to see that although the result obtained by this test method is a bandwidth unit of one byte/second, it is by no means only related to the transmission bandwidth. The more important thing is actually stability. 1.4 kilobytes/second ? almost as soon as the numbers appeared on the screen, Wu Wei subconsciously figured it out. Even at the beginning of the 21st century, the results were shockingly slow. As he estimated before, using communication vehicles for multi-hop transmission on the ground with poor transmission conditions will not end well. In fact, the measured throughput on the No. 2 bus is as high as more than 170 kilobytes/second. At the No. 3 car, there are still about 30 kilobytes/second left... Car No. 4 only has 1.4 kilobytes/second left. It is enough to see the devastating impact of adding relay nodes on transmission speed. ?Of course, such exaggerated results are indeed a special case caused by large local natural disturbances. But the trend is always correct. Turn on the encoding and decoding functions of each car number and test again! ?Chang Haonan recorded the experimental data and then gave an order to the radio. For him, the worse the results of the control group, the closer they are to success. ?However, the premise of everything is. The experimental group can really measure better data. As the cooling fan of the cabinet started whirring again, the second test officially began. Theoretically, after the encoding and decoding functions are enabled, the network throughput will approach the Shannon limit. Although there will still be many impacts in actual operation, no matter what, the results should be better than before. The testing process did not live up to expectations. The duration is several times longer than the first time. Even though the outcome is only positively correlated with the length of time rather than directly proportional, this is at least a good sign. It was not until more than ten minutes later that a number representing the throughput of car No. 4 popped up on the screen as before. 6.8 kilobytes/second! This result made Wu Wei''s eyes light up. You should know that these numbers themselves do not represent the true level of his communication vehicle. But the magnitude of the improvement is real. Nearly 5 times! ?He has no doubt that if his own products use this technology, their performance will not be completely outdated even after 5 or even 10 years... Mr. Chang, this He looked at Chang Haonan excitedly, ready to express congratulations. But when he said the words, he realized that the other person''s face... didn''t seem very good-looking. Thats not right ?Chang Haonan frowned slightly, stared at the results on the screen and murmured. ??The slightly weird reaction directly confused Wu Wei: Thats not rightwhats wrong? He was greeted by a moment of silence. After a while, Chang Haonan said softly in a tone that was unclear whether he was talking to himself or answering a question: I tested it on a wired network before, and the result was never 15 times lower...Why is the effect this time reduced by two-thirds? Hearing these words, Wu Wei almost choked on his own saliva ?Good guy, does this mean that the five-fold improvement is not big enough? (End of this chapter) Chapter 1014 The neglected broadcast effect Chapter 1014 The ignored broadcast effect Mr. Chang, I think you shouldnt be too anxious Wu Wei, who was a little unable to hold himself tight, opened his mouth to comfort him: The transmission rate and transmission stability of wireless systems cannot be compared with wired systems, so the results are slightly worse... This should be normal, right? Thats not right! However, Chang Haonan''s response was to shake his head decisively: The transmission rate of the wireless system is indeed not as good as the wired system, but our test has controlled the transmission method. The experimental group and the control group are both wireless transmission, so there should be no difference in the improvement rate. As for stability ?He paused for a moment, raised his head and looked at Wu Wei with serious eyes: If we analyze it from this perspective, then for less stable transmission methods, the improvement brought by network coding technology should be more obvious. In short, there is only an improvement of less than 5 timesthere must be something wrong ??Wu Wei wanted to express some objections to this description of "only five times", but seeing that Chang Haonan''s face was serious and did not look like he was joking at all, he swallowed the words that came to his lips. For a while, the progress of the test stopped. Western in June. Sunny day. Its afternoon again. Even if the air conditioner is installed, the cabin will still be stuffy. ??Everyone was focused on the test just now, so they didnt feel it, but this meeting made people a little upset. Even Chang Haonan was inevitably affected by it. In short, I couldnt figure out what the problem was right away. Mainly for wireless communications, there are too many influencing factors. ?Similar to aircraft design, humans only apply it based on engineering experience. In fact, there are still many principles that are not fully understood. So sometimes we really can only consider the possibility that the machine soul is displeased... Reset the device and try again. Since his thinking was fruitless, Chang Haonan had no choice but to use his electronic product repair skills - Restart. ?It was an accident just now that the guarantee was not complete. ?His instructions were quickly conveyed to each test vehicle via radio. Technicians are already familiar with this kind of thing. So, after a lot of trouble, the new control group and experimental group data were quickly measured. The results are a bit fluctuating compared to just now. But not much has changed. ? are 1.6 and 7.4 kilobytes/second respectively. Still less than five times the result. After careful calculation, its actually a bit worse than the first time Looking at the numbers on the screen in front of him, Chang Haonan felt the veins on his forehead throbbing. He only used the system in the process of algorithm development, and this process ended long ago. It is already in the engineering testing stage, and the system naturally does not include after-sales service. ??And he has no idea what the current problem is, nor does he meet the basic requirements for system startup... "Mr. Chang, our next step..." ??Wu Wei mainly engages in ground single-hop communications, so in his heart he actually feels that this result is quite good, and there is absolutely no need to make things difficult for himself. ?But he definitely couldn''t say this directly, so he just asked Chang Haonan what he should do next with a little hesitation. The latter looked at the time and knew that the test progress could not be stuck here forever. The results are the same twice, indicating that the problem is reproducible. It is not caused by unexpected interference factors. On the other hand, since it can be improved by 5 times, it means that in principle, it is feasible to apply the combination of MRD and network coding to multi-hop communication. As for why it is only five times, you can study it slowly after you go back. Let each car move its position and continue the test with a distance of 10 kilometers... ?While giving the order, he jotted down the problem and several possible possibilities in the notebook next to him. ?Wu Wei next to him was relieved when he heard this instruction, and quickly directed the other three vehicles to enter the next test position. Chang Haonan, on the other hand, sat beside him and continued to lose himself in deep thought. The next step is a long wait... He didnt know how much time passed before he suddenly heard Wu Weis voice next to him again: Car No. 1, adjust the antenna angle and deflect it to the right by 530\'' Obviously, at this time, each communication vehicle has arrived at the scheduled second round position and is ready for final debugging before testing. Antenna angle For a moment, a light flashed in Chang Haonan''s mind, as if he had grasped something important. Logically speaking, due to the relatively poor directivity of wireless communications, it is almost impossible to adjust the antenna by a few degrees to have a huge impact on the communication effect. The reason for adjustment is just to control variables and ensure the rigor of the test. To a certain extent, it is the professional instinct of engineers. ?But now that I think about it carefully, it provides Chang Haonan with a new idea. Mr. Chang? ??Wu Wei suddenly heard Chang Haonan repeat the words "antenna angle" just now. He thought there was something wrong with his operation steps, and quickly looked at the latter with questioning eyes. Its okay, keep testing! ?Chang Haonan immediately cheered up again. ?His idea needs to be verified by the results of several subsequent tests. Since this is already the third operation, the testing team is familiar with the entire process. The efficiency is much faster than the previous two times. At an interval of 10 kilometers, the speed of the control group was still the same. 1.5 kilobytes/second. However, the situation of the experimental group has changed dramatically 10.3 kilobytes/second. When the result came out, Wu Wei''s eyes widened and he froze on the spot. The quintessence of Chinese culture almost reached his lips, but he still forcefully took it back: Seven...seven times? Comparing with the test results at a distance of five kilometers, this time it seems that there is not much change, but it clearly shows one thing - Chang Haonan was right just now. Five times is indeed not the limit. However, the more confusing thing is that the effect becomes better when the distance is farther... You must know that the main distance for direct communication of the division communication vehicles developed by the 54th Institute is between 5 and 15 kilometers. So he is and is most concerned about results within this range. Mr. Chang, do you need to repeat it again? ?After a while, Wu Wei recovered from the shock. ?Chang Haonan raised his wrist and looked at his watch, and then calculated the time in his mind: Repeat it, move quickly, and then immediately switch to the 15km test... The following test results, from a qualitative perspective, are completely consistent with Chang Haonans expectations As the communication distance increases, the network throughput of the control group begins to decline significantly. However, the experimental group has been rising against the trend. By the time the four vehicles were 30 kilometers apart, the measured throughput data of vehicle No. 4 had reached 17.3 kilobytes/second. In terms of absolute speed, of course it is still not fast. It can even be said to be very slow. However, compared with the control group, the improvement factor is basically close to the level when Chang Haonan conducted previous tests on the wired network. 19.7 times. ??Furthermore, after adopting the new technology, the network throughput measured after three rounds of relays (car 1 itself is also counted as one relay) is only about 15% lower than that of one round of relays. The relay loss has been almost minimized! ? Chang Haonan finally breathed a sigh of relief after his suspicion was completely confirmed. As with most scientific work, the most grueling part is figuring out the problem from a jumble of clues. Once this step is completed, the subsequent part of solving the problem is relatively easy. At least on a psychological level. After a slight pause, Chang Haonan gave new instructions over the radio: Attention all cars, todays test is here first, prepare to close the team... These finishing tasks naturally have a dedicated person in charge, and there is no need for him or Wu Wei to handle them personally. Therefore, the latter took advantage of this free moment to ask Chang Haonan the doubts he had just had: Mr. Chang, why is the transmission effect using network coding technology better after the communication distance is lengthened? Because of the broadcast effect Chang Haonan opened the door and left the car as he spoke, and then found a position upwind, preparing to blow in the refreshing evening breeze after the sun set. ?Although it smells a little like sand, it is much stronger than the stuffy heat inside the operating cabin. This is good for inland areas at mid- and high latitudes. No matter how hot it is at noon, the temperature will drop immediately as long as the sun is out. Broadcast effect? ?Wu Wei thought for a while, but could not find this keyword in his brain. "Ah...yes, I just came up with this term. It''s normal that you haven''t heard of it..." Chang Haonan nodded and replied: "That is to say, all the information in the physical layer of the wireless network is transmitted in the wireless medium through electromagnetic waves, so that multiple receiving nodes can simultaneously monitor the electromagnetic wave signal transmitted by one sending node. On the contrary, the information sent by multiple sending nodes can also Received simultaneously by a receiving end." "This results in the packet data of adjacent hops causing "self-interference" to the data of this hop in the same business flow. Most wireless communication systems only allow one source to transmit information at the same time, or other sources transmit information. The superimposed signals are treated as interference and suppressed, which results in the actual throughput of the wireless multi-hop network being significantly lower than that of the wired network..." As the distance between several vehicles increases, the self-interference caused by the broadcast effect weakens, so the throughput increases. But this explanation did not completely eliminate Wu Weis confusion: But the control group should also have the same effect? Of course. ?Chang Haonan put his hands behind his back, like a boss: However, the main factor affecting the network throughput of the control group is the transmission delay caused by repeated packet sending, and self-interference has little impact on it. After applying network coding technology, the proportion of transmission delay gives way to processing delay, so the broadcast effect becomes more obvious..." (End of this chapter) Chapter 1015 The key to two-way data links! Chapter 1015 The key to the two-way data link! After all, Wu Wei is an old engineer who has been immersed in the field of communication technology for many years. Although he was initially confused by the new term coined by Chang Haonan, there is no obstacle to understanding the concept mentioned by the latter. Logically speaking, the next step is to find ways to mitigate or even eliminate the self-interference effect caused by broadcast characteristics. It''s just...this problem is indeed quite special. Because in most cases, self-interference will only appear in wireless multi-hop networks. Just like the previous rounds of testing. ??However, in practical applications, since you have set up one or more relay stations between point A and point B, it means that the signal sent from A cannot be transmitted to B stably. There will be no strong self-interference phenomenon. In other words, the last set of tests just now are closer to reality. So, Wu Wei immediately told Chang Haonan his thoughts. The latter did not answer immediately, but just lowered his head and thought while pacing around Car No. 1. In fact, although Wu Wei knew that Chang Haonan wanted to develop network coding technology, he did not know what he ultimately wanted to do. After all, this matter is more serious and involves the anti-aircraft carrier system, a big killer. Even though the confidentiality level of the other party is not low, the fewer people who know about it, the better. From the perspective of Wu Wei as a ground relay, what he said is indeed correct. But satellites, especially low-orbit satellites, are different. ?It is not like a car or an airplane that can move wherever it wants, but can only move according to a specific orbit and cycle. ?This means that it is inevitable that multiple satellites will come together, or the two satellites that are directly transmitting data are constantly getting farther apart, and a relay satellite needs to be connected in advance for backup. So, for Chang Haonan, the problem of self-interference must be solved. Thats it, Comrade Wu Wei. After circling the car for an unknown number of times, Chang Haonan finally stopped in front of Wu Wei: What you just said does make sense, so the research and development of this satellite/scatter communication vehicle will be carried out according to the original plan. The current network coding algorithm will be integrated first, so that at least the informatization pilot units can have something to use. "But in the long run, the application scope of this technology will not be limited to military encrypted communications, but will sooner or later be expanded to industry and even civilian fields. Therefore, while continuing to advance the project progress, we must also allocate some resources To avoid the impact of self-interference on data transmission. Such a compromise plan is naturally not difficult for Wu Wei to accept. He immediately nodded in agreement, and then asked Chang Haonan about his ideas for solving the problem: Are Chang always ready to continue developing new algorithms? ?The essence of self-interference is that the receiving station cannot identify the same content signal sources sent by different sending stations. Therefore, as long as they can be distinguished at the data level, this trouble can be fundamentally avoided. ?Hence, in Wu Weis view, algorithm giants like Chang Haonan are likely to have already thought of specific technical solutions. However, Chang Haonan gave a negative answer: This problem may be difficult to solve using algorithms alone The basic function of a relay station, even a relay station with encoding and decoding functions, is to ensure that the information content does not change during the transmission process. Therefore, the software-level solution may only focus on the transmission sequence..." "But the throughput of relay communications is already tight. After adding network coding technology, the relay units are required to have higher computing power... If the transmission sequence is rashly adjusted during the signal transmission process, I am afraid that the performance will be improved with great difficulty. Its time to descend again Wu Wei was speechless for a moment. After a moment of silence, his eyes suddenly lit up: "Can we start with the hardware and make a special design for the receiver, such as a multi-hop network from A to B to C to D? At the physical level, we let D block the signals from A and B and only accept signals from C. If you send it, wont the problem be solved? ?These words made Chang Haonan''s eyes reveal a hint of surprise...and appreciation. ? Being able to come up with a completely feasible project plan in such a short period of time without any prior preparation shows that Wu Wei, as the backbone of the 54th Division, really has something. He nodded slightly and said: This is indeed the most intuitive and effective method. Suddenly receiving such a high evaluation, Wu Wei was a little unresponsive: Then what you mean is...according to this idea... He even felt a sense of unreality when he thought that the solution he inadvertently proposed might be adopted. Then, Chang Haonan brought a basin of cold water: But this method is not flexible enough, and it will also increase the complexity of the system, so...for now I am going to use it as a fallback solution. "Well" ??Wu Weis expression of excitement just turned solid on his face. ?Chang Haonan was also a little amused by the other party''s reaction and explained: "You think, originally my four stations ABCD can transmit and receive relays in any order, but after changing it as you said, it can only transmit in one direction in the order of A-B-C-D... These are only four nodes. situation, if there are more intermediate nodes involved in the whole process, the hardware waste caused will be more serious..." ifies Listening to Chang Haonan''s description, Wu Wei couldn''t help but take a breath of air. Fortunately, the evening in the desert area is already cool, so the former did not feel that the surrounding temperature dropped due to this. "Mr. Chang, are you... planning to establish a two-way data link for sea, land and air?" In almost a few breaths, Wu Wei keenly guessed one of Chang Haonan''s purposes. Although it is only superficial. In the long run, yes. Chang Haonan has sent cooperation invitation letters to many units regarding the data link, so there is no need to hide it. However, except for Academician Wang Xiaomo, who had foreseen it for a long time, and Wu Wei, who had just been informed, everyone else subconsciously thought that he was just planning to establish an air force, or at most a tri-service integrated command system. Since it is a command, it is only a one-way communication between superiors and subordinates. But Chang Haonan likes what Mr. Ma Weiming said very much Since we are going to do it, we must surpass the United States! So, even if the current conditions are not met, he is still prepared to leave room for upgrades to the asymmetric two-way data link in the future. Then since the software level cannot solve it, the hardware level will bring other problems... Do you have a third route? After recovering from the shock, Wu Wei quickly brought the topic back to the self-interference issue discussed before. The third route is of course impossible. Chang Haonan shook his head and said in a helpless tone: But I never said it cant be solved from the hardware level..." Huh? Then you just... What I just said is that there is a problem with the method you proposed. Dont expand the problem to the entire hardware level. ?Chang Haonan glanced at Wu Wei and said in a joking tone. Ahem Wu Wei suddenly felt that there was a crack in his fragile heart that was difficult to heal... ?Chang Haonan finally stopped selling things: My idea is that instead of racking your brains to avoid signals sent by other transmitters, it is better to treat them as useful information, thereby further improving the throughput of the entire multi-hop communication system based on network coding technology. quantity!" (End of this chapter) Chapter 1016 SeA650 engine, final assembly completed! Chapter 1016 SeA650 engine, final assembly completed! After hearing this statement, Wu Wei''s eyes showed a clear look of confusion. ?However, after today''s mental journey of ups and downs, his mentality at this moment has been tempered to be as solid as a rock. Therefore, even though he didn''t understand it at all, he still didn''t show it and just waited for Chang Haonan''s further explanation. After all, the latter has just mentioned that changes at the hardware level will be involved, and in the end it will have to be implemented by their 54th office. Sure enough, after a brief thought, Chang Haonan spoke again: "Theoretically, as long as the mapping relationship between the superimposed waveform and the information can be established, the superimposed waveform can be directly demodulated without the need to demodulate each user''s information individually... It only needs to perform a one-step XOR operation to eliminate The self-interference caused by the broadcast effect will not add too much additional computing power and power consumption burden to the system. In addition, to complete a typical single-hop two-way relay communication in this way, only two time slots will appear in the middle instead of three in the traditional transmission strategy, which is equivalent to increasing the theoretical throughput by about one-third..." ??The jump in this derivation is indeed a bit big, but it actually made Wu Wei''s eyes clearer. Looking at the other party''s look, Chang Haonan knew that he probably couldn''t explain the two paragraphs just now, so he had to return to the No. 1 car and take out his notebook - While waiting for the results of those rounds of experiments, he had already written down some ideas on it. "Under the constraints of half-duplex conditions, the system needs to perform two phases, uplink and downlink respectively, to complete a two-way relay communication. In the uplink phase, node 1 and node 2 simultaneously send their respective data frames S1 and S2 to node R, and in the downlink The stage is for node R to perform demodulation and network coding mapping based on the received superimposed electromagnetic wave signal, form a network coding data frame SR and broadcast it to node 1 and node 2. " As Chang Haonan spoke, he found a page with relevant content from his notebook and handed it to Wu Wei: "Because there is a mapping relationship between the superimposed waveform and information, the node only needs to use the encoded data frame SR and a data frame it originally owns to recover another data frame. At this time, the entire two-way communication process has been completed, and there is no need Here comes the third time slot. Of course, the focus of this process lies in the specific scheme of processing the received superimposed electromagnetic wave signal by the relay node R. I havent fully thought about how to design this..." ??Wu Wei listened to Chang Haonan''s explanation while his eyes quickly scanned the contents of the notebook. Although the illustrations are a bit abstract and the handwriting is more fluent, he is not a newbie with zero basic knowledge. Moreover, there are notes next to the teacher teaching on the spot, so he can quickly understand the above content. after ?He couldn''t help it and read it again. ?Although the above does not involve the engineering implementation methods, even if it is just from the perspective of ideas, it is enough to impress people. ?It''s a pity that the two of them are standing on the Gobi Desert and there is no table. ?So Wu Wei had no choice but to do the next best thing and slapped his palm on the hood next to him: Mr. Chang, isnt this another implementation of network coding at the physical level? ?This summary is indeed insightful, and can even be said to penetrate the phenomenon to the essence. Even Chang Haonan couldn''t help but look at him differently. This is really the case from a principle level He nodded: In my opinion, this technology is called physical layer network coding technology... ?At the same time, Chang Haonan was busy developing a two-way communication relay system. Another key project in the hands of the Aerospace Power Group has also achieved important phased results. ?After about a two-year research and development cycle, the first SeA650 prototype in complete technical condition was finally assembled and rolled off the assembly line at Snecma Groups factory in Villaroche. Moreover, a few days ago, Snecma''s wholly-owned subsidiary Herrell-DuBois Group had also produced two sets of engines for the first prototype according to the design provided by China. nacelle. ?This also means that the power system of the entire Falcon Z project has officially entered the actual machine testing stage. Of course, since the entire SeA series of engines uses the core engine of M88-3, which has previously conducted a total of thousands of hours of single experiments in China and France, the whole process will not be as long as a brand-new engine. ?If all goes well, we will definitely be able to catch up with the first flight of the model early next year. With new aircraft equipped with new engines, risks will definitely still exist. Especially when both sides use a lot of new technologies. ?However, thanks to their good aviation technology and excellent basic industrial level, Europeans do not have much psychological burden on this kind of thing. At the moment, there are no other alternatives available on the market. Only the BR700 series jointly developed by Rolls-Royce and BMW is considered to be at the same level. ??However, Dassault business jets have never used Rolls-Royce products in the past, and the Falcon Z has integrated flight and thrust control. If you want to replace the engine control system, you will even have to modify a special version of the flight control. In short, no matter from the market or technical level, it is better to go directly to SeA650. Anyway, judging from the situation of M88, there shouldnt be any major mistakes. As the main designer of SeA650, Aerodynamics Group naturally sent a team to France to participate in the delivery ceremony under the leadership of Liu Yongquan. ?When an important partner comes to visit, unless there are special needs such as confidentiality, the reception methods are the same whether at home or abroad. First have a round of eating and drinking, and then introduce a history of the company''s development (if the company history is too short, skip it, or change it to the boss''s family history), then arrange a visit to different areas of the factory or R&D center according to the specifications, and finally have another round of eating and drinking . The formal ceremony will not be held until the next day. Liu Yongquan and others are basically facing this set of procedures. ?It must be said that as a veteran aviation company, Snecmas final assembly plant is indeed worth a visit. Although Huaxia has made rapid progress in recent years and has approached or even achieved international leading levels in many individual technologies, there is indeed still considerable progress in the overall organization and management of the factory, as well as basic skills such as mechanical processing and manufacturing. space. Not to mention anything else, Liu Yongquan found many details worthy of learning from Liming Factory just as he walked through the workshop working environment and worker safety protection. ?Of course, he is here to visit today, not to study. ?So the group of people walked around and quickly came to the engine that would not be officially delivered until tomorrow, but had actually been tested on the bench for several rounds. As a small engine with a medium bypass ratio, the SeA650 is not large in size. Even because of the elimination of the afterburner, it is shorter than the M88. So that if a group of about thirty people wanted to watch, they would be divided into two levels: inner and outer. ?However, as Liu Yongquan, of course he can have direct and close contact with him. ?He leaned down slightly, put his head in front of the tail nozzle, and looked at the internal turbine structure. From the light coming from behind, it is easy to see that the prototype is still using turbine blades produced and exported by Liming Factory. As for the turbine disk Although the view is blocked, the result is obvious. ?Snecma has been trying to mass-produce SeA650 turbine parts at its parts manufacturing plant in Gennevilliers since March this year. However, Paris is a trial production workshop, which can be regarded as a pilot environment, and there are still many differences from the actual factory. It took more than two months and still did not produce a complete batch of qualified products. With no choice but to place a new order with China before final assembly, it was used for the production of a total of four prototypes. ? Even to this day, Snecma has not publicly admitted that it will use parts provided by Liming Factory in mass-produced products. But everyone already understands it tacitly The yield rate produced in two months is 0, which shows that there is a big problem in the process technology and even the process route, which cannot be solved by simply adjusting parameters. Whether it is a complete upgrade of an existing process or the development of a new process from scratch, the cycle is basically calculated in years. ?Your Falcon Z will make its first flight early next year as planned, and the product will be delivered the year after next at the latest. How can you have so much time to slowly research new technologies? It can only be topped up with imported parts first, and we can make long-term plans in the future. ?Just like when China introduced the Arriel 1C engine from France. It''s just that the offense and defense have changed now. But then again. In this way, the next move is almost obvious. As an important partner, Aerospace Power Group cannot wait for Snecma to complete technical research before kicking itself out of the supplier list. Hence, you must sign a minimum supply quantity and minimum delivery time guarantee contract. In other words, no matter whether Snecma solves the process problem or not, it needs to order no less than a certain quantity of products every year for at least x years. Or simply, within the entire life cycle of the entire series of engines, no less than xx% of turbine parts must be supplied by China. In fact, Liu Yongquan led the team on this trip. In addition to participating in the delivery ceremony, another important task was to communicate with Snecma and reach such an agreement. (End of this chapter) Chapter 1017 The shock took Ying for a whole year Chapter 1017: Shock brought Ying for a whole year As the first model of the SeA series engine and the core power of the entire Falcon Z project, the delivery ceremony of the SeA650 can be described as full. ?In addition to the four major project participants, as well as Paris Air Services Administration and China Silver Deer Airlines, which are currently confirmed as the first users of Falcon Z, even French officials sent representatives to attend. Jean-Pierre Raffarin. ??The conservative senator from Vienne was appointed as the new head of government by Jacques Chirac last month. ?The reason why such a big boss came in person is that his constituency contains a number of aviation manufacturing suppliers, involving a total of about 20,000 voters, so he has always been a die-hard supporter of the French aviation industry. And he owns a Falcon 900 private jet. ?But in fact, at least another equally important reason is that Raffarin has always been known as a so-called "pro-China" figure in the political arena. ?This of course does not mean that he really likes China. Its because behind the Peoples Movement Alliance to which he belongs, there are a large number of funders who have reaped the dividends of cooperation with China in the past few years. ?Some people simply started their business because of this. Alliances formed out of common interests are often stronger than those formed out of emotions. So, the first thing Raffarin did when he arrived at the scene was to take Liu Yongquan and several other company representatives and take a photo with the SeA650 as the background. The craftsmanship of French journalists is indeed commendable. The choice of angle is very good. ??The receiver with its diamond-shaped grid shines brightly in the sunlight. On the engine bracket below, there are two national flags of China and France. ?In front of the engine, a dozen people crossed their arms and held hands, looking happy and happy. The publicity effect is full. ??Although in the development of this model, Snecma and Dassault were "forced" to make a lot of profits to China. But as far as the entire Falcon Z project is concerned, the French still make a lot of money As estimated by the Dassault Civilian Department in the past few years, China''s business aviation industry has developed extremely rapidly after 2000. The top group of wealthy people have begun to purchase their own private jets one after another, while those at a lower level have also driven the development of the business aviation industry through leasing. ?This part of the business almost exclusively belonged to Bombardier and Gulfstream in the past, but with the emergence of the Falcon Z project with Chinese origins, North American companies'' monopoly on fixed-wing business jets is gradually being broken. ? Coupling this with the demand for special-purpose aircraft platforms such as aviation medical and telemetry surveillance... In short, it is a market that, although not as good as civil aviation, definitely has more potential than pure arms sales. ?Of course, its not easy for Raffarin to come over, and he definitely cant just take a look at the engine. So after the entire ceremony, I also asked about the Falcon Z project status. The original schedule is all on track, with the first flight scheduled for early next year, mass production and delivery by the end of next year, and at the latest the first half of the next year. ??Talk about the progress of Falcon Z, Ed Steiner also showed a look of relief. Although many obstacles were encountered during the research and development process, and even many tasks that were originally planned to be completed by themselves were forced to be handed over to China, in any case, the leadership was still in the hands of Dassault. Based on this, the entire project was neither over budget nor overdue. It may even be earlier. In the context of declining engineering efficiency in recent years, it is simply the pride of France. "very good." Sure enough, after hearing this answer, Raffarin nodded with satisfaction: The current government official planes are a few Airbus A319CJs. They are too old and the range is too short. They cant even fly directly to Washington or the capital. Moreover, many times we dont have that many accompanying personnel..." ?Although the words may sound a little off-topic at first glance, considering the context of the conversation, it is obviously a clear hint. The business jet fleet may need to be updated. ?Although the bulk of them definitely belongs to Airbus, it is most likely the Airbus A340, which has a long enough range. But as long as you can spend money to lobby, it shouldn''t be difficult to get some of the pie. ?Ed Steiner quickly caught the baggage: The largest model in the Falcon Z series can accommodate 14 passengers and can fly up to 12,000 kilometers ? There are many ways to convey benefits privately, and it is impossible to discuss the black-box transaction part in such a public way. So, Ed Steiner just quietly reported the range and passenger capacity of the Falcon 8Z, indicating that it has the ability and willingness to serve as a new supplier ?Of course what he is interested in is not the few single-digit orders, but the advertising effect in the business jet industry. Raffarin is also a thousand-year-old fox and immediately praised: Compared to those business jets in the past, the performance is indeed very good. Then the conversation changed again: I wonder when you are going to release the specific performance data of this model? Todays delivery ceremony is actually a semi-public event. After all, many media and industry peers have been invited. But as a product, it definitely needs a more suitable promotion platform. Soon, Your Excellency, it should be in a few days. Ed Steiner replied, showing a smile at the same time: How many days later? In fact, Raffarin was thinking about the Farnborough Air Show to be held next month. The answer turned out to be even earlier than that. Well, next week, the European Business Aviation Show will be held in Geneva, Switzerland. ? Ed Steiner explains: The content of the Farnborough Airshow is too complex. Regardless of the professional day or the public day, most peoples attention will be on military aircraft and large passenger aircraft from Boeing and Airbus. On the contrary, this small but sophisticated At the exhibition, there are fewer people joining in the fun, and the visitors are very purposeful, which is more suitable for the promotion of Falcon Z. " We have specially prepared a cross-sectional model of the Falcon 8Z and a full-size model of the SeA650 engine. Now it has been packed and ready to be sent to Geneva for the exhibition... ? ? Air shows are actually mainly for users. After all, business jet customer groups are very busy and do not have much time to pay attention to scattered aviation industry news. Even a business airline that specializes in business jets cannot look at so many suppliers around the world every day. So a special occasion is needed to provide them with news. But for those who are truly in the industry, the content revealed at this delivery ceremony is enough to judge a lot of things... the next day. ?Birmingham, UK. Rolls-Royce Headquarters. ? Luke Norris hurriedly found Professor Roger Elinor who had just assigned the next stage of tasks to the technical team. ? The latter, as a professor at Cranfield University, has not actually joined Rolls-Royce, but he comes to Birmingham in person every 3-4 weeks to confirm the development progress. Hello, Professor Elinor. After stopping the other party, he first pretended to be relaxed and said hello. But Elinor did not accept this trick at all, and just waved his hand slightly impatiently: If you have anything, just tell me directly... ?When he took over the EJ200 project a few years ago, he originally thought it was just an ordinary little job filling holes for young engineers who were becoming increasingly unreliable. Only when we actually started working did we realize that although there was only one pit on the surface, there were a bunch of invisible traps around it. I couldnt tell which foot was missing and I fell straight into it. In four to five years time, the EJ200 will be adjusted to a usable state, but there is indeed still a considerable gap between the paper performance that was promoted back then. For this reason, Elinor even had to postpone his retirement plan. ?Hence, some irritability is inevitable. Professor, here is a promotional material given by Snecma. The content is quite detailed, so I would like to ask you to analyze it... While speaking, Norris took out a document from the briefcase under his arm... Strictly speaking, it was a book of information. ?Seeing the other partys sincere attitude, the latter really couldnt refuse, so he had to accept it: Snecmais it the M88 engine again? ?But as soon as he finished speaking, before Norris could answer, he had already noticed the content on the cover. SeA650 engine. Strictly speaking, this is not exactly a promotional material. It is also somewhat of a technical manual. ?Of course, its impossible to get into any specific technical details The French themselves dont fully understand it yet. But it is similar to users, mainly maintenance personnel. ?Since this kind of thing needs to be distributed in large quantities, it is impossible to keep it secret. ? Almost all technical manuals for civilian engines can be found on the second-hand market. ?So, Snecma directly modified it based on it, and prepared to see if it could be marketed to other users besides Dassault. It was natural that the British got it. Elinor flipped through it briefly and felt that the thickness was a bit shocking, so he frowned: I am just a technical consultant for EJ200, this is considered extra work... We can add more money. Six words directly answered all the professor''s dissatisfaction. In fact, the main reason why he has not given up his job despite high blood pressure is that Luo Luo does not care about how he is not a good person in other places, but the money is indeed adequate. Lets go and sit in the office for a while... Elinor walked to his office and flipped through the information in his hand: To be honest, although it is indeed much more detailed than ordinary promotional materials, I dont think this thing is too big... At this point, his voice stopped abruptly. Even the steps stopped. Norris, who was walking next to him, was unprepared. He almost tripped to the ground when he made a sudden stop. He turned to look at Elinor. Only to find that the latter was staring at a certain page in the booklet. Even the blue irises vibrated slightly. "professor?" ?Norris tried to shout. After a while, he heard the response. Its just a question: "I remember you said before that the core engine of this model...is shared with the M88 engine?" Thats right. ? Norris nodded. Eleanor''s expression became serious: But the combustion chamber outlet temperature given here is nearly 100C higher than the previous M88-2 data? (End of this chapter) Chapter 1018 Black technology for the A380? Chapter 1018. Black technology prepared for A380? Shared core engine means that the high-pressure compressor, combustion chamber and turbine are basically the same. Of course, if the same core machine is in different working environments or has been upgraded, it is normal for the operating temperature to be somewhat different. But the problem is that the difference between M88-2 and SeA650 is less than a year. As for the temperature before the turbine, 100C is almost half a generation away. Although it cannot be said that the higher the temperature in front of the turbine, the better the engine performance will be, but the correlation is indeed relatively strong. So there must be something wrong here. ?However, by this time, Norris had not fully realized the seriousness of the matter, and just guessed casually: Perhaps they have developed some new insulation coating? ?However, Professor Elinor just blew his beard and glared: Thats ridiculous! ?He reached out and flicked the document hard, making a crisp snapping sound: Have you ever seen any coating that can increase heat resistance by 100C in one go? If there is such a thing, why should we study alloy materials and active cooling technology? Facing the furious old professor, Norris also realized that his idea just now was a bit outrageous: Then...it may also be that there are some hidden problems that have not been solved before M88-2, so in order to ensure reliability, the temperature in front of the turbine has been specially reduced. The problem was solved on the SeA650...or because the working environment of the passenger aircraft engine is relatively mild, the problem no longer exists, and the original design was restored..." ?This explanation is obviously much more reasonable than the one just now. Even Elinor lowered his head and thought, seeming to be convinced. But after about half a minute, he still shook his head: "The M88 did reduce its working performance to ensure stability, but this was mainly a problem with the compressor. I knew some of the parameters of its prototype back then. The combustion chamber outlet temperature...followed by the two models M88-1 and M88-2. The difference is not big. ?At this time, the situation is a bit stagnant. Forget it, go back to the office first, I have to take a good look at this thing After thinking to no avail, Professor Elinor took another step. Completely forgetting that I almost said "I don''t think this thing is of much use" less than five minutes ago... All in all, it smells really good Soon, the two came to the office on the top floor of the headquarters. ?Eleanor took off his suit jacket, and without even having time to make a cup of coffee, he hurriedly sat back behind the desk and reopened the information in his hand to study. but No clues were found. It is just a technical manual after all. ? Liu Yongquan handed over almost all the technical information to Snecma, but he only had to teach it step by step. The latter has not yet fully grasped the design theory of the M88-3 engine. ??Rolls-Royce''s level is certainly higher than Dassault''s, but it''s impossible to see through everything based on just an ambiguous piece of information. Furthermore, there are only a few ways to increase the temperature in front of the vortex. ?Most of them are unlikely to bring about 100C room for improvement. Although the effect of replacing the turbine base material is obvious, the base material affects the whole body, affecting not only the high temperature resistance, but also other mechanical properties. It is almost necessary to recalculate the combustion chamber and turbine parts. It is impossible to It can be dealt with in a few months. Then there is new active cooling technology. ?For example, when film cooling was first applied, it raised the temperature in front of the turbine to a whole new level. If the new impact cooling technology is put into use, it can probably achieve similar results. It will not affect the basic design of the engine itself, so the workload is relatively limited and it is not an exaggeration to complete it within one year. The problem is that neither France nor China seems to have conducted in-depth research in this area. In addition, impingement cooling requires 10% or even a larger proportion of the air provided by the compressor to be used for cooling rather than propulsion, which in principle will lead to huge thrust losses. It may even be possible to completely offset the increase in thrust caused by the increase in temperature in front of the turbine... ??However, the thrust performance of SeA650 is quite normal, and it does not seem like it has lost a lot of power gas... In short, its stuck. Instead, Norris, who had been sitting on the sofa thinking, suddenly had a flash of inspiration: "Professor, I suddenly remembered that Dr. Lapworth mentioned a research result before. By modifying the internal channel design of the air film hole, the temperature resistance performance can be improved by about 80-100..." ???Liya Lapworth, director of computational science at Rolls-Royce and head of the Computational Science Laboratory. ?In addition to being responsible for connecting with various ongoing project teams and completing their computing needs, this laboratory is also responsible for certain cutting-edge technology research and development tasks. Is there such a thing? Elinor sat up straight at that moment: But...Ive never heard of it before? ?As an extremely mature technology, it is normal for the effect of air film cooling to improve as the research becomes more in-depth. But to improve so much at once...it''s a bit mind-boggling. ??And if such results really come out, the impact should be considerable. Norris shrugged: Because the technology is on hold. ?Hearing this answer, Elinor was very surprised: "Why?" ?Although the basic principles of air film cooling and impingement cooling are similar, the former uses cooling air relatively normally and basically does not have particularly fatal flaws. Norris sighed softly: "Originally, it was planned to be used on the Trent 900 engine, which could reduce fuel consumption by about 5.5%, thus defeating the GP7200... But after the technology was actually implemented, it was discovered that the complexity of both design and manufacturing was too high... " ? ? Trent 900 and GP7200 are both used to prepare the power for the superjumbo Airbus A380 that is under development. According to convention, both models will be included in the A380 supplier list as options to avoid putting eggs in one basket. ?Having said that, if any model has significantly better performance than the other, then users are not stupid and will definitely prefer the option with better performance. In order to simplify logistics, many airlines will try to unify the engine brands in their fleets as much as possible. Therefore, if we can win the competition with GP7200, the benefits will be more than just one or two thousand engines for hundreds of A380s... So Professor Elinor was silent for a while, and then slowly said: If SeA650 can guarantee the delivery time and quantity, it means that the French... uh... or the Chinese people are very likely to have mastered the technology you mentioned... or similar technology?" ?This question made Norris unable to react for a while. After being stunned for a moment, he realized that the other party had already accepted his conjecture. ?This time it made him feel less confident. "No...Professor, I''m just speculating. I''m not saying they must..." But before he finished speaking, he was interrupted by Elinor: But at least for now, there is no other possibility, right? Norris was speechless. Obviously, Elinors logic is sound. When all other possibilities are eliminated, the last remaining one can only be regarded as the correct answer for the time being. ?Eleanor closed the brochure in his hand and turned it to the back cover. I see what is written here...SeA650 will be displayed as a 1:1 restored full-size model at the European Business Aviation Show in Geneva next week. He glanced at it and then raised his head and looked at Norris: Hurry up and book your tickets, lets go to Switzerland next week Ah? The latter''s face showed a moment of confusion. At first he just wanted to find Professor Elinor to analyze this booklet, but why did he suddenly have to go on a business trip? Dont be stunned, go and book a ticket! Looking at Norris who had no reaction, Elinor stretched out his hand and knocked on the table for emphasis: Theres probably something weuhand of course you need over there! (End of this chapter) Chapter 1019 Are there any experts? Chapter 1019 Are there any masters? After sending Norris away, Professor Elinor picked up the book on the table again. ?However, before he could open it, there was a beeping sound in his trouser pocket. ??The alarm clock on your cell phone rang. ?Until this moment, Elinor remembered that he had a conference call to hold this afternoon. It is about a sponsorship from the Ministry of Defence. Its about a three-hour drive from Derbyshire to Bedfordshire, where the school is located. If you want to go back to attend the meeting, you have to leave now anyway. ?Eleanor sighed softly, put down the things in his hands again, stood up and prepared to put on his coat. But after taking two steps out, a tangled look appeared on his face. The pace also slowed down... Elinor''s hesitation did not last long. ?About two seconds later, he took a deep breath, walked back to the desk in three steps, picked up the phone, and dialed the number of his laboratory. Jane, please help me tell the college that I cant attend the afternoon conference call in person... Lets just say Im here at Rolls-Royce uh, solving the problem with the EJ200 engine. Content of the meeting... Just record the key points for me... After hanging up the phone, the professor couldn''t help but let out a long sigh of relief. Then he took out a notebook from the drawer next to him and quickly wrote down: The engine with a thrust level of 1.6500kgF has a generating power of up to 25kW, which is unnecessary and the value is high. 2. The total pressure ratio of the engine is different from that of M88-2, and it is suspected that the compressor parameters have been adjusted. 3. In fact, after reading the information just now, Professor Elinor''s doubts about the model SeA650 not only did not decrease, but actually increased. ??If it were an ordinary promotional material, then he would most likely think that the content inside was made up by propaganda personnel who were completely ignorant of technology. ?This situation is not uncommon at air shows. But the content of that thing is completely in the style and format of a technical manual, and it is definitely not something that a layman can write. The possibility of false advertising is also very small. ? ? There is a high probability that Snecma really used some special new technology on it, causing some of the engine''s performance to be very strange from a traditional perspective. ?This is why he rushed Norris to book the tickets and put off the conference call this afternoon Excluding the time on the road, there are only two days left before the opening of the European Business Aviation Show. ??He needs to quickly organize his thoughts so that he can quickly obtain useful information through indirect speculation after arriving at the air show. It must be said that Norris works very efficiently. Not only did he arrange the entire trip to Geneva in just one afternoon, he even expanded the originally planned duo into a delegation. Including Dr. Leah Lapworth, who was mentioned before, and Tim Purdy, deputy project director of the Trent series engine design team, there are more than 20 people in total. This scale is a bit outrageous to say the least. You should know that Rolls-Royces UK headquarters does not even have business aircraft related business. Professor Elinor quickly realized that something was wrong and immediately refused to enter the exhibition site with the rest of the people. Sure enough, it was just as he feared. ?When such a group of people arrived at the Geneva Air Show as visitors, the first thought of most people was ??Is there something unexpected happening to Rolls-Royce Germany, which was originally responsible for the business jet business? But looking at the BR series engine booth over there where everything is normal, it doesnt look like theres something wrong ?However, the purpose of Luoluo''s trip is quite clear. They didnt even glance at the situation of their German branch, but rushed straight into Dassaults exhibition area. Snecma''s business in the field of business aircraft has just started. Apart from the SeA650 this time, only its Arriel series turboshaft engines will be installed on some business helicopters. Naturally, they will not be able to do so. A specially designated area was created. ??Furthermore, even after joining forces with Dassault 21, the entire area is still a little empty compared to several other nearby companies. The main products to be promoted are only a real Falcon 900EX and the large-scale Falcon 8Z model. Fortunately, thanks to Dassault''s promotion in the past half year, Falcon 8Z has gained quite a reputation, and there are also some interested visitors gathered around it, so it will not be completely ignored. ?But this is not a bad thing for the Luoluo team. With almost no effort, they squeezed through the crowd and came to the goal of their trip, which was the full-scale model of the SeA650 engine. With more than 20 people, they are already very eye-catching in this exhibition area. ?Hence, two Snecma staff members soon came over to take a look. The original intention was just to see if there were any business opportunities and distribute some promotional materials. It doesnt matter what the outcome looks like Business aviation shows are not open to the public. So everyone will wear a badge after entering the door. Indicate the work unit, nature of the personnel, photos and names. ??But the information on the badges of the group in front of me clearly shows... They are from England? Or Rolls-Royce? ??Isn''t this a weasel giving New Year greetings to a chicken? Shopping malls are like battlefields. Who said that destroying the opponent''s engine model is not a business war? Dont worry about business or not, just say war or not, right? ?As a result, the air at the scene instantly became anxious. ?One of them quickly asked his companions to go back to find the on-site supervisor, while he stayed behind to deal with the "enemy". There was even a hint of farewell in Yishuihan''s voice. ??At this time, everyone on Luoluo''s side had not yet realized how menacingly they looked like they were here to cause trouble. Therefore, after seeing a person who looked like a staff member coming this way, the leader, Tim Bodi, immediately said hello in what he thought was a friendly manner, and then prepared to shake hands with the person. Hello, sir, I am... ??As a result, before he even announced his name, he found that the Frenchman on the opposite side had already put on a defensive posture. Had no choice but to put down my hand in embarrassment. For a moment, the world seemed to become quiet... In short, although the misunderstanding was finally resolved, Bodi and his party failed to learn any very useful information. Instead, Professor Elinor came to the Dassault exhibition area in a low-key manner later. And happened to meet Liu Yongquan and Ian Vista who had calmed down the situation and were about to go backstage to blow on the air conditioner. Hello, my name is Roger Elinor, a professor at Cranfield University and a technical consultant at BAE Systems Eleanor said as he took out the promotional materials and of course the notebook from his backpack. Liu Yongquan and Vista looked at each other. The name Roger Eleanor is relatively well-known in Europe and even in the aviation industry around the world. At least Liu Yongquan has read the papers published by the other party. ?However, the wonderful thing about Elinor''s self-introduction is that both identities are true and full of hints. BAE Systems'' commercial aircraft division''s main product is the famous Hawker Beechcraft series of business jets. Although it has been sold to Raytheon due to operating difficulties in the past few years, there is no guarantee that it will not make a comeback. Moreover, even if this layer is not considered, BAE, as a well-known defense equipment supplier in the NATO system, also sells a large number of special aircraft modification solutions for business jet platforms. ??Anyway, he looks like a serious visitor In fact, the issues Vesta wanted to know did not involve any trade secrets, let alone technical details. ??The reason why Luo Luo''s group failed just now was because the atmosphere was too tense. ?Now he has a Cranfield University badge and is throwing out bait as a potential client. ?Then what happens next will be a matter of course. ?After some simple greetings, Elinor no longer concealed his purpose: Dr. Vesta, Dr. Liu, I accidentally saw the SeA650 engine promotional materials you put out before, and I am very interested in the performance of this model... He said, shaking the thick booklet in his hand. The two people opposite also showed a posture of asking casually. I noticed that you have calibrated the power generation power of the SeA650 engine at 25kW. Obviously this is a very large number for a model with a thrust of 6.5 tons. Elinor started by asking a question that he thought was relatively plain: So I want to know, did your company specifically consider other uses when you first formulated the plan? After all, generally speaking, business jets do not use two units with a total of 50kW of electricity..." Liu Yongquan understands English, but after all, he rarely uses it, so he was overtaken by Vesta who was the first to react: Thats not true. The latter replied with a smile: During the design process, we discovered that the available effective power of the core engine exceeded the original estimate, and this part of the effective power can be converted into additional thrust or additional power. Later we considered that the 6.5-ton thrust fully meets the design calibration, and there is no need to go higher. Although the power generation may not be used at the moment, with the deepening of electrification, there is still much potential in the future... Furthermore, if there are additional needs such as special aircraft modification, a platform using the SeA650 engine will no longer need to install additional power supply equipment, saving modification costs... so the latter was chosen. This last sentence is obviously aimed at his identity as a consultant to BAE Systems. In fact, logically speaking, this problem ends here. Professor Elinor has even made a mental evaluation that "the performance improvement of the core machine has led to deviations in performance calibration." ?However, at this moment, Liu Yongquan next to him suddenly said: As for the source of this part of the available effective power, we have applied the latest non-contact magnetic bearing technology, which has reduced the waste power generated by the friction of the original rotor bearing, and also greatly extended the maintenance cycle of the compressor rotor No. 1 support point. ??? The pen in Elinor''s hand stopped: Magnetic bearings? (End of this chapter) Chapter 1020 I was obviously the one who came first Chapter 1020 It was obviously me who came first ?Liu Yongquans addition made both Vista and Elinor stunned at the same time. ??The former was trying to show off but failed to show off, and was simply a little embarrassed about being slapped in the face Replacing the rotor bearing with a non-contact magnetic bearing can indeed increase the effective power, but this part of the effective power cannot be directly converted into thrust. Generating electricity is almost the only option. ?Of course, if I have to say it, with this part of power, the power calibration of the genuine motor can be reduced, which can indeed squeeze out more potential for increased thrust. But its not like what he just explained. Fortunately, at the moment, no one pays attention to this little detail. Because the latter had no idea that the question he asked casually as a foreshadowing would lead to such a big and cruel thing. ? Magnetic bearings are nothing new to Elinor, who is a British man. ?This thing was first researched by Newcastle University. The product that is actually available is also the first to be put on the market by S2M, a subsidiary of the British Edwards Group. Even the technical route of combining magnetic bearings and permanent magnet fault-tolerant motors to build a permanent magnet fault-tolerant power generation system based on H-bridge was first promoted by Lockheed Martin in the JSF project, but the concept itself It was proposed by British Aerospace Corporation, one of the predecessors of BAE Systems. But what happened? Why did the French suddenly use it? Be it the product or the concept, I obviously came first, right? You must know that the biggest difficulty with this technology is not the hardware, but that magnetic bearings are a brand-new product and no one knows how to calibrate them Although this thing can basically be considered to have no friction, if you want to use it to generate electricity, the act of cutting the magnetic induction coil itself will generate resistance. In fact, in the earliest design concepts, this resistance was even a tool used to efficiently adjust the engine speed. It truly kills several birds with one stone. ?However, the problem is that once there is a problem with the electromagnetic control, it will affect the whole body. Specifically, fluctuations in power consumption may lead to fluctuations in power generation, which may further lead to resistance fluctuations, which may further lead to speed fluctuations, which may then lead to rotational stalls, and the final development is surge... In short, the permanent magnet fault-tolerant power generation system requires an optimal current control method to achieve fault-tolerant control. But it becomes a huge problem to make the control strategy effective in a quite wide working range. The installation and application of the entire set of technologies happens to be stuck here. Even according to the most optimistic expectations of Lockheed Martin and Pratt & Whitney, JSF will not be able to solve the reliability problem of the permanent magnet fault-tolerant power generation system and install it until 2008. Few people who actually know the inside story believe this timetable. result. In Geneva. ?At this business aviation show, which is quite ordinary and seems to have no bright spots, someone actually came up with a solution? Professor Elinor, the brochure in your hand was modified based on the maintenance manual we previously modified, and the content is actually not very comprehensive... As if sensing the other party''s hesitation, Liu Yongquan took out another slightly thinner booklet with a different cover from somewhere: "This is the second version that has just been revised. It has deleted some operational details that are of little significance to non-maintenance personnel, and added descriptions of several key new technologies on our products... Although it is not very detailed, I Thinking is enough. ?Eleanor''s thinking was still not fully recovered at this time, so he took it in his hand somewhat numbly, and then opened it. About page 10 is the part about magnetic bearings and permanent magnet fault-tolerant power generation systems Liu Yongquan reminded thoughtfully. Sure enough, a few pictures and schematics were used to explain the performance of this set of things and its advantages over traditional solutions in just a few words. It is also specifically noted that in order to ensure reliability, SeA650 is equipped with a mechanical backup at the No. 1 support point. ? Once the magnetic bearing fails, the rotor bearing, which was originally in a non-contact state, will enter work. Of course, this is definitely not a normal state. But the emergency mode can also ensure that the aircraft engine runs at a lower speed for at least two hours. In short, from a performance perspective, there are no flaws at all. but As for the promotional materials, the content is just like this. It is impossible for people to write down the specific design and calibration for you. ?So Elinor read it over and over several times, but still felt a little unsatisfied. But it was impossible for him to ask directly. The expression on his face was twisted. ?During this awkward process, Elinor suddenly realized that he seemed to have a fixed mindset just now. As for content related to magnetic bearings, the Chinese people in front of me have always been communicating with me. Dr. Vesta on Snecma''s side remained invisible throughout the entire process... ?This seems to indicate that at least the magnetic bearing technology should have a greater relationship with Chinese partners. Even, it may even be developed by the Chinese.??? at the same time. ?Looking at Elinor''s performance, Liu Yongquan couldn''t help but smile as if his plan had succeeded - In fact, after he failed to answer the first question just now, he quickly observed a detail about Elinor. ??Although the personal information written on the latter''s badge was flawless, the ballpoint pen in his hand was the same style as the one inserted in the pockets of the Rolls-Royce group just now. So Liu Yongquan reasonably inferred that this Roger Elinor actually came here on behalf of Rolls-Royce. Its just a different strategy. Perhaps it is a red face among red and black faces. ?However, Liu Yongquan did not reveal the identity of the other party. Not necessary. First of all, the question the other party asked was not a particularly sensitive question. After Falcon Z is delivered to users, it will be obvious at a glance which technologies you used in which parts. It is neither possible nor necessary to keep the information confidential. Secondly... The French have a bad relationship with the British. What does it have to do with him as a Chinese? Aerodynamics and Snecma are partners, thats right. ??But so is the opposite Rolls-Royce! Siro Group is still leaving it there. Thats why he chose to take the initiative and directly point out the technology used. And he gave Elinor a copy of the brochure that had just been finalized and he had only brought a few copies so that he could read it clearly. As for you want to know the specific design method... Its not impossible. It means you have to add money. You have to add items. Of course, Rolls-Royce has an absolute dominant position in the design and manufacturing of aerospace engines, especially large-bypass-ratio aerospace engines. It may not be that easy to get them to agree to joint research and development. ?The next best thing is to be a solution or subsystem supplier. Not only can we use Rolls-Royce''s brand name to make China''s aviation products famous. You can also gain some experience in the research and development of large-bypass-ratio aerospace engines. More importantly, it can further deepen the close ties between China and Europe in the field of aviation technology. It is also one of the most effective means of countering embargoes and sanctions. ??Moreover, the highlights in that booklet are far more than that... Sure enough, after being convinced that he could not find any new useful information, Professor Elinor continued to read the following contents half reluctantly and half curiously. Soon, his core doubt, where the strange 100C temperature rise came from, was answered. The SeA650 engine uses mature and reliable film cooling technology, combined with a newly developed three-dimensional pore structure and variable interface aperture, to increase the temperature in front of the turbine by 93.7C without affecting its lifespan..." Note that since the internal structure of the three-dimensional hole is more complex than the traditional air film hole, mid-term maintenance must be carried out by a designated supplier..." As usual, below the concise description are several photos and diagrams, as well as a series of test results. ?There are not many details, but it can be seen that the cross-section of the air film hole is basket-shaped, rather than the traditional round, oval or fan-shaped. ?This is exactly in line with the characteristics described by Dr. Norris and Dr. Lapworth before. Of course, the specific design parameters must be different. But the technical solution Im afraid its really the same. ? Professor Elinor considers himself to be well-educated, but at this time it is inevitable that he would like to use words beginning with a certain F or a certain S to exhale fragrance in his mouth Come again? ??Although he is not sure who was the first to study the air film hole, it is no different in essence from the magnetic bearing just now. ?Our own side blew the whistle on the PPT. The result was finally realized quietly... ?This matter is still a bit embarrassing after all... (End of this chapter) Chapter 1021 Let China participate in the Trent 900 project? Chapter 1021 Let China participate in the Trent 900 project? Before leaving, Elinor specifically asked if he could take the brochure with him. In fact, because time is too tight and the printing quantity is insufficient, Dassault and Snecma have said before that in principle they will not distribute promotional materials to exhibitors on site. Otherwise, you may lose everything in your hands in the end. If you really need it, you can leave your contact information and the publicity department will send an electronic version. Or you can mail the hard copy from Paris later. ?However, it is well known. In principle, its not possible, which means its actually possible. Therefore, Liu Yongquan nodded. ? He ??doesnt think that a new model engine like the SeA650, which has not yet been installed for its first flight, can win many customers at this air show. However, Rollo''s interest in several specific technologies is real. Even if the other party cooperates with Huaxia through Xiluo Company, it will definitely choose Haofa Group, which is close to the water, as the cooperation partner, and it will not directly benefit Shengjing. However, Liu Yongquans standing has improved a lot as he has been working on projects with Chang Haonan over the years Why Shengjing Haojing, arent they all brother units of the same group? Furthermore, Liu Yongquan is very familiar with the contents of the manual, and he will not lose anything even if he gives it out... ?It wasnt until after watching Elinor leave and the two of them returned to the air-conditioned room backstage that Vesta said with some hindsight: Liu...I think theres something wrong with that Roger Elinor just now. Liu Yongquan rolled his eyes slightly and thought to himself, why haven''t you come to your senses yet... ?However, on the surface, he still agreed with the other partys statement: As a British person...its normal for you to feel that something is wrong with him. There is generally nothing wrong with criticizing the British in front of the French. Sure enough, Vesta nodded immediately, and then continued his analysis: "You are right...but what I just meant is that I feel that he may not only have the two identities on the surface." But Liu Yongquan is not prepared to continue to dwell on this topic. After all, strictly speaking, he was colluding and cooperating with the British under the eyes of the French. It would not be a good idea if Vesta had to figure this out. Its not important He shook his head: "No matter who he is, since he appears at the air show, he may be our potential customer..." "Besides, to take a step back, even if he had any additional purpose, in the end he just took away a piece of propaganda from us that will be released to the world in the near future. The only loss is nothing more than the two of us. It took a lot of talking..." And to be honest, compared to the SeA650 which has not yet made its first flight, I think you should consider how to cooperate with Dassault to fully utilize the performance of the M88-3... After a long discussion, Vistas attention was finally diverted to other places. ?On the other side, Professor Elinor went around in circles for several days and finally got the information he wanted. Although it did not directly help solve the structural strength problem of EJ200 as he expected, there are still some gains. Therefore, after leaving the exhibition site, he returned to the hotel where the delegation stayed as quickly as possible. ?At this time, the rest of Luoluo''s people were gathering in a suite, feeling resentful about the failure just now. But I cant think of any way to save it. ?Then, suddenly the doorbell rang. After opening the door, he saw Eleanor walking in, dressed casually. Luke Norris, as the person who had dealt with the other party the most, was the first to react to what happened. Professor, have you got any results there? "certainly." Elinor was radiant. He went straight to an empty sofa and sat down. Then he crossed his legs and started pointing: "Actually, I could handle this kind of thing myself, but you had to bring in so many people, especially wearing the same suits, for fear that others wouldn''t know that these 20 or so people are together..." "Originally, we didn''t want to We are engaging in espionage activities. We just want to know some propaganda content in advance. If you do this, the situation will become more complicated..." As a major contributor to this operation, Eleanor spent about five minutes fully criticizing this behavior of creating difficulties without difficulty. ?Although the rest of the people are not completely convinced, after all, someone else has wiped their butts this time, so they have no choice but to do it... Fortunately, after the professor vented his anger, he returned to the topic: The first thing we are all concerned about is the combustion chamber outlet temperature... He said, opening the notebook in his hand. When other people heard the keyword, they cheered up again. According to the latest information provided by Snecma, their active cooling design is indeed close to the new air film holes previously developed by Dr. Lapworth for the Trent 900 engine. However, to be on the safe side, it is up to the doctor to make his or her own judgment. " ?Eleanor turned the brochure to the pages related to the turbine part, then handed it to Norris next to him, motioning for everyone to take turns to read it. Soon, the book came into Lapworth''s hands. ?She narrowed her eyes slightly and moved closer to take a closer look. After a moment, Lapworth nodded: Indeedalthough the specific parameters may be different, the design ideas are exactly the same. Without changing the fundamental heat transfer method, we use a multi-layer, three-dimensional air film pore design, and simultaneously utilize convection and conduction effects to form a more effective heat insulation film on the blade surface..." "But the biggest problem is that although it can be prepared in the laboratory, after entering the factory environment, the yield rate of this kind of air film holes is frighteningly low... And there are dozens of holes punched in a turbine blade, and if there is a problem with one of them, it will Turned into waste Tim Bodie, who had not yet had his turn to read the contents of the brochure, frowned slightly: In other words, the French have solved the manufacturing process of this air film hole and can achieve industrial mass production? There was a little surprise in his tone. ?However, his expression is quite calm. After all, France can be regarded as an "old industrial power" in the traditional sense. Although its level in the field of overall aerospace design is a bit hard to describe, it is actually not weak when it comes to processing and production alone. Even, Bodis mind has been opened up. Without waiting for Elinor to reply, he immediately suggested: If this is the case, then we can completely restore the original design of the Trent 900 and increase the temperature in front of the turbine, so that the GP7200 will not take advantage of the fuel consumption..." At worst, we can just leave the turbine production to the French. Airbus is also dominated by them anyway ?GP7200, a model built by Engine Alliance Company with special skills. This company itself may not be particularly famous. ??But its two parent companies are General Electric and Pratt & Whitney. The second of the three major aero-engine suppliers. In other words, the engine selection of the Airbus A380 is actually based on the North American engine versus the European engine. Originally, the GP7200s trump card is quietness, while the Trent 900s advantage is fuel economy. Logically speaking, airlines definitely prefer the latter. However, after realizing that the turbine part originally designed was difficult to put into mass production, Rolls-Royce had no choice but to return to the traditional film cooling solution and reduce the temperature in front of the turbine accordingly. This is very embarrassing... What is before us is obviously an excellent opportunity for a comeback. I dont have any objection to this idea... Of course, the model Trent 900 doesnt belong to me either. Speaking of this, Elinor showed a half-smiling expression: However...the production of this air film hole may not have been completed by the French..." "Um?" As soon as he finished speaking, more than twenty eyes looked at him almost at the same time. If my guess is correct, then the turbine of the SeA650 engine...at least the processing of the turbine air film hole, I am afraid it was completed by the Chinese side..." (End of this chapter) Chapter 1022 Doesn’t this highlight the role of Ciro Company? Chapter 1022: Doesnt this highlight the role of Siro Company? The news that Eleanor suddenly broke out completely exceeded everyone''s psychological expectations. ?There was a commotion in the room almost immediately. The connection between Rolls-Royce and China in aviation technology actually started a long time ago. ?Even the years when the Spey project stalled were not interrupted. This also includes film cooling. In fact, Rolls-Royce even provided several projects for the first research group at Hokyong University of Technology to study active cooling technology for aerospace engines. ?Although they are only marginal research, for China, which was still in its infancy and faced with tight funding, it was definitely a timely help. Later, the after-sales business of products exported to China was directly placed locally. And it all pays off Relatively low after-sales costs and stable parts supply channels make China Airlines more likely to choose products from the United Kingdom rather than the United States or Canada under the same circumstances. Especially in the past five years, the market share has skyrocketed. ?Its a pity that they failed to get a share of the pie at the 737 and A320 levels, which affected their future growth potential. ?But no matter what, at least my mouth is full of food now. ??Royces mentality has always been: No one understands the Chinese aviation market better than me. Of course, Chinas progress in the field of aviation technology in recent years can be seen by those in the industry as long as they are not blind. However, whether judging from the information currently available or the external performance of the other party, this progress is mainly reflected in the fields of project management and engineering design. In terms of manufacturing, considering that China still imports a lot of aviation base materials, components and processing equipment every year, it is generally believed that the speed of progress should be relatively slow. This is also in line with the general logic of industrial development. The result is now They find that they dont seem to understand that much either. "Professor, regarding this... was it directly stated by Snecma?" Tim Bodies mouth that had been raised just now drooped, and his expression became serious. On the one hand, he felt it was a bit unreasonable. On the other hand, as the deputy director of the entire Trent series of engines, he must also consider everything. ??If Huaxia components are really used on the Trent 900, it will be smooth sailing. But if something unexpected happens, even if the accident is not caused by production quality problems, it will definitely face a huge impact from public opinion. "no." Eleanor decisively gave a negative answer: Actually, I didnt ask just now. "That" ??Podi did not expect that the other party would deny it so simply. But Elinor did not give him a chance to question, but immediately explained: Look carefully, in that booklet, on the last page about the turbine, there is a line of small words marked below. Coincidentally, the brochure also reached Bodi at this time. ?He followed Elinor''s instructions and soon discovered the line of words: Due to the complex internal structure of the air film hole,... it will be handed over to a designated supplier for mid-term maintenance? After hearing this statement, the voices of discussion and questioning gradually subsided. We are all insiders and can hear the hidden meaning The SeA650 itself is a jointly developed model, but considering the convenience of promotion, in the early stage of publicity, both the banner and the promotional channels used were Snecma. Including future guarantee services for European users, they will definitely be contacted directly by the French. ?In order to prevent certain litigants from using the accusation of false publicity to engage in legal blackmail, this disclaimer was added. Indicates that another company actually provides after-sales service to this part, and we at Snecma only transfer it on your behalf. There will definitely be relevant clauses in the contract in the future. ?Since Snecma can''t even handle maintenance and guarantees, let alone production and processing... Only the Chinese may be responsible. For a time, everyone either lowered their heads in thought, stared blankly, or paced back and forth... In short, they all fell silent. ?Especially Purdy and Lapworth. ?For a major model like the Trent 900, the final decision must be made by the management team as a whole and then submitted to the board of directors for signature and approval. ?However, as project executives and core technical personnel, the two of them undoubtedly have a high say in this. Of course, it also means taking reciprocal responsibilities. "professor." After struggling to no avail, Bodi turned to look at Elinor who was watching the excitement on the sofa: SeA650 engine, to what extent is it progressing now? I mean... when will it be available to users? The latter raised his head slightly and recalled the conversation at the exhibition just now: If you mean it will be delivered to the airlines together with the Falcon 8Z, it will have to wait until early 2004... Of course, this is just their statement. "Let me estimate...probably before 2005." Professor Elinor followed the "common sense" in Europe and made some allowances based on the delivery time given by Liu Yongquan. Then, perhaps in order to increase the credibility of his statement, he added another sentence: After all, their aircraft engine has a lot of new technologies. In addition to the three-dimensional special-shaped air film hole, there is also a permanent magnet fault-tolerant power generation system that replaces the traditional rotor bearing... Lapworth on the other side is not engaged in the overall design of aviation engines, and did not give much response to this permanent magnet fault-tolerant power generation system. ?But Bodie stopped abruptly, with an expression on his face that was almost exactly the same as Elinor''s before. ?However, the use of magnetic bearings was not considered in the Trent 900 from the beginning, and in any case it is impossible to make major changes to the overall design at this juncture. ? So he just opened his mouth, but in the end he did not change the topic, but began to silently calculate the development cycles of the Trent 900 and A380 No matter what, lets solve the most important thing at hand first. However, the calculation results are not very optimistic: I originally thought about waiting for the SeA650 to be delivered to users and then observing it for a year or two to make sure there are no fatal reliability issues before making a decision. At this point, he sighed with regret: But the A380 plan is to start test flights in 2005. If we want to catch up with the prototype competition stage, there is not enough time anyway..." Can you consider using the current engine for test flights first, and then replace it when the mass production model is delivered..." Someone has come up with a new idea. Its difficult. Bodi immediately shook his head: In fact, there is no technical problem, but the temporary upgrade will definitely affect the psychology of customers, and considering that testing is required in the middle, it will also delay the delivery time of the whole machine. In the end, it will only make more people choose GP7200. If there is an obvious loss in the first batch of orders for a model, based on past experience, it will be difficult to turn around unless we wait for a new generation of products. Seeing that the discussion could not produce a result in a short period of time, Lapworth, who had not expressed his position just now, decided to do the next best thing: Now, the Trent 900 at least has the possibility to outperform its competitors, so anyway, I think we should contact China first, purchase a batch of sample parts, and at least bring them back for testing first. Among all the people, as the developer of new film cooling technology, he undoubtedly has the most positive attitude: If the component-level test can be passed and the installation test is carried out later, the resistance from the board of directors will be reduced. Its not entirely a question of purchasing volume Bodi said helplessly: "Since you are looking for someone else to produce it, you must at least provide some parameters related to the turbine design and the base material. So even if it is a sample piece, you have to prove that it is necessary before the superiors agree to use the data. Give it out..." Actually, although he didnt say it explicitly, this is a matter of prejudice Even for professional and technical personnel like them, China''s development speed in the aviation field is somewhat difficult to understand and accept. Not to mention the people above who make the decisions. So, even if we are looking for someone to do the work for us, it is more likely to be accepted by "finding someone from France to do the work for us" than "finding someone from China for the work." ?The reason why he wanted to observe the situation of SeA650 in two years just now was based on this consideration. By then, it can be said that the reliability of Huaxia products has been verified on other models. Now there is no second option before us. If we dont choose, we have to choose this. Its a pity that time waits for no one. If you want me to say Suddenly, a weak voice came from the corner of the room, which immediately attracted everyone''s attention. Its Luke Norris. Ordinarily, he actually belongs to the middle level of Luo Luo Group, but among this group of people, he does seem to have no status... ?Hence, being stared at by so many eyes almost made him forget how to breathe. Uh...I want to say that if there is only a small amount of samples, maybe we can use Ciro Company to make this matter less sensitive... Ciro Company Lapworth showed a trace of confusion in his eyes: Arent they only responsible for maintenance, training and liaison? It was indeed like this in the beginning. Norris replied: But I just remembered that they submitted a report two years ago, which mentioned the relationship between the Airbus A380 engine selection issue and the Chinese market..." Ah? ?Purdy and Lapworth looked at each other. Logically speaking, if this kind of report is really important, then they both should have read it. Norris continued to explain: "I have read that report. It has nothing to do with technology or the Trent 900 engine itself. In fact, it is a roundabout way to expand the business scope of Ciro Company, especially to increase the R&D and production functions, so it was reported directly to the administrative management. there" Lapworth immediately rolled his eyes: Are you kidding me, they can develop... The words stopped abruptly in the middle of the sentence. Siro Company may indeed not be able to develop anything. But the Chinese can. ?As Norris said just now, as long as the Ciro Company is involved in the process, and the executives on the board of directors do not understand technology, who can tell what is going on? So...what was your response then? ??Bodi had obviously figured this out and quickly asked. We didnt think they could research anything at the time. Norris shrugged: But the Chinese market is too important, and it is not good to refuse it completely, so we have symbolically arranged a few R&D positions, as well as tens of thousands of pounds of funding per year, so that they can engage in technical cooperation in name only..." (End of this chapter) Chapter 1023 People are sitting at home, life comes from heaven Chapter 1023: People sit at home, life comes from heaven Tens of thousands of pounds per year, this investment is significant for aerospace research... Its not even a drop in the bucket. At most it is equivalent to a sneeze. Even if Mr. Chang was brought here from China, he would have to say that I cant do the job. So in fact, no one expects Ciro Company to actually use the money to conduct scientific research. The actual use is closer to public relations funds ? Find a few influential people in China to cooperate with, do some feasibility reports or market research, send out the money, and treat it as a relationship... At the beginning of the 21st century, the exchange rate of the pound was still relatively strong. Converting it into RMB, although it is not much, it is absolutely clean white money after all, which is still somewhat attractive. So, Norriss answer is a mixed blessing for everyone. Whats worrying is that the situation is a bit embarrassing now Yes, the groups senior management does not understand aviation development. But they understand financial statements. ??You want to say that this technology was jointly developed by Xiro Company and Huaxia, then when others look at it, they will find that tens of thousands of pounds per year can produce such a big job. ?When it comes to applying for project funding in the future, figures in the tens of millions or hundreds of millions will be hard to come by. Who can understand the urinary nature of capitalists better than the British? If you exceed the target today, it will directly become a KPI tomorrow. As for joy After all, some room for maneuver was retained and the road was not completely blocked. Who is the person in charge of Xiro Company? Tim Purdy asked. George Brin, and Adam Whittle. This kind of thing is more familiar to Norris, who is also a middle-level administrator: Among them, Brin once served as the representative of the office in Brazil. As for Whittle, he seems to be an engineer... I have an impression of this person. Lapworth suddenly interjected: When the RB211-535E4 was upgraded, he seemed to be responsible for the fuel and oil system. Later, something happened to this part during the test, and the aircraft almost crashed and everyone was killed..." Obviously, it was not something honorable that made Whittle''s impression on him. "Well" Norris found the right moment and quickly interrupted this behavior that seemed to be rehashing old scores: In short...he was first sent to China because China introduced our Spey MK202 engine that year..." ?At this moment, everyone suddenly showed expressions of realization was sent there. ?But in the blink of an eye, I couldn''t help but feel a little emotional. ?Less than ten years ago, the so-called "technical exchange" between China and the United Kingdom consisted of buying completely outdated and even second-hand equipment and technology from the latter. Now, the situation has reversed. A group of Britain''s top aerospace engineers are considering how to quietly cooperate with the Chinese to defeat their opponents from North America. With all the mixed feelings, the situation turned out to be a bit cold. "well-" In the end, thousands of words converged into a sigh from Lapworth: Anyway, lets contact Ciro Company first If Sibeis technology transfer and improvement project had not been completed, we might be able to find some financial loopholes..." ?As the discussion came to an end, everyone left the suite that belonged to Bodi one after another. Professor, please stay. ??Pody called from behind Professor Elinor who was packing his things and about to get up. ??The latter stopped what he was doing and raised his head, with some questions in his eyes. I remember you mentioned just now that the SeA650 is equipped with a permanent magnet fault-tolerant power generation system... Bodi said and sat on another sofa next to him: Are you sure its the technology we know about Judging from their description, it should be. Eleanor nodded. ?Then without waiting for the other party to speak again, he said bluntly: But if you want to acquire this technology through pure cooperation or introduction, I can only be pessimistic. Bodi was not embarrassed when his thoughts were seen through. He just asked: "Why?" Elinor smiled, obviously very confident in his judgment: "The Chinese should have no obstacles to technology transfer, or at least cooperation...but are you sure the Americans are willing to use Chinese subsystems in their air force equipment?" ?However, Bodi''s reaction was a sneer: "Heh... just like before, can''t we just not let the Americans know?" ?Although Elinor did not explicitly state the source of this technology at the beginning, he had actually already guessed it. So I didnt feel particularly shocked by this meeting. Instead, I directly drew inferences from one case to another: Just say we developed it and then outsourced it... Anyway, Lockheed Martin and Pratt & Whitney are already so busy with the F35 and F135 that they dont care about these details..." In one sentence, Professor Eleanor of the classical school was immediately put in a position of incapacity. ??He was speechless for a long time, not thinking about what he should say at this time. Finally, I had to scratch my head: "If that''s the case...you can really give it a try..." I just have to remind you that the rotor support system is very important in aviation development. If you want to entrust others to develop it, you have to hand over part of the F135 data..." ??Although Bodi showed no fear just now, he couldn''t help but hesitate a little after hearing these words. Its easy to talk about both business and technical issues. But this may involve security aspects... ?The Americans long-arm jurisdiction is quite scary. ?Especially since he is still in England. Its even more scary. Id better think about it again The other side. ??When the air show ended and Liu Yongquan finished the entire trip and returned to China, it was already three days later. The harvest from this business trip can be said to be fruitful. ?Hence, he didnt even bother taking a break or getting jet-lagged. After getting off the plane, he went straight to the headquarters of the Aviation Power Group. Actually, if he came back two days early, he wouldnt even be able to see Chang Haonan The latter had just returned to the capital from the testing site in western Mongolia Province the previous afternoon, which also happened to be the first day of rework... Lao Liu? ?Chang Haonan came back from lunch and unexpectedly saw Liu Yongquan, who was dusty at the door of the office: Didnt you just come back from France? You dont need to be so anxious about your business trip report. Anyway, SeA650 wont make any big mistakes..." He said as he took out the key and opened the door. Uh...I havent started to sort out the business trip report yet. Liu Yongquan took a deep breath, cheered up and followed Chang Haonan in: "It''s another matter. I think it''s more important, so I''ll tell you in advance." Chang Haonan, who was entering the password, immediately became interested: Elaborate. He can still trust Liu Yongquan''s judgment ability. This time when we took a full-scale model of the SeA650 to the European Business Aviation Show, we met a group of engineers from Rolls-Royce. Although the person didnt clearly state his purpose of coming, he just pretended to be a normal customer attending the meeting and asked us some questions about engine performance, but I judged that the other person might be interested in some of our technologies... Actually, this is purely a mistake. Professor Elinors personal interest in SeA650 is purely out of curiosity as a scientific researcher. As for the plan to cooperate with China, that was an idea that came later, and it has nothing to do with Elinor... Our technology ?Chang Haonan came to the conclusion only after a short period of thinking: At the level of Rolls-Royce, Im afraid the overall design of the SeA650 is not worth it Then only permanent magnet fault-tolerant power generation systems and air film cooling technology are left? Thats right. Liu Yongquans tired face revealed unconcealable excitement: That person stayed in these two parts for a particularly long time and asked a lot of questions. "And I think they should be very anxious, I''m afraid they will get in touch with us soon." You didnt show it on purpose, did you? ?Chang Haonan was a little suspicious. ?Mainly because he thought about it and couldn''t remember which project of Luo Luo was in trouble right now He knew that the EJ200 had hidden flaws, but that was the fault of the earliest structural design. The rest of the models seemed to have been completed step by step in the previous life. "Won''t." Liu Yongquans attitude is very positive: They actually behaved very normally at the scene, but the questions they asked were all basic design information that the normal civil aviation association has gradually released. If you are not in a hurry with these things, you just need to continue to pay attention to the publicity from Snecma and Dassault. There is no need to make a special trip to Switzerland..." This explanation is well-founded and convincing. ?Chang Haonan dragged his chin with one hand and tapped lightly on the table with the other hand: If this is the case, then the British will most likely test us through the Silo Company soon. However, Comrade Yongquan He paused for a moment, looked at Liu Yongquan opposite, and at the same time changed into a rather formal tone: No matter what form or name it takes in the end, if the cooperation is reached, then considering the actual situation of Xiro Company, there is a high probability that the actual responsibility will be handed over to Haofa Group. You must be mentally prepared for this. "Hey...Mr. Chang, I still have this overall perspective." ?Liu Yongquan behaved quite indifferently: The various units under our group are like a rope...cough coughit means that one prosperes and the other suffers losses. No matter who it is handed over to, the whole will benefit. Besides, even if the project is handed over to Haofa Group, the people who are familiar with these two technologies are still with us..." Chang Haonan is still very satisfied with this statement. The road is widened. ?Of course, he just nodded on the surface: After you go back, you really have to select some good seedlings who have participated in the SeA650 project and send them to fly for a while. One or two may even stay there directly. "However, I don''t just ask you to contribute... Luoluo has a very strong family background and has a lot of research projects in hand. Whether it is a turbofan or a turboprop, they are all the most advanced models in their respective categories, so we cooperate with them. It is also an opportunity for us to learn and communicate..." (End of this chapter) Chapter 1024 High temperature resistant titanium aluminum alloy Chapter 1024 High Temperature Resistant Titanium Aluminum Alloy Facts quickly verified Chang Haonans conjecture. ?Just three days later, Ren Bingda, deputy general manager of Haofa Group, went to Beijing in person to report to the groups leadership. Indicates that Xiro Company has officially sent a letter asking if it can process the complex structural air film hole on an aero-engine turbine component. ??And also brought the original copy of the inquiry letter, as well as the minutes of the meeting with the British representatives George Breen and Adam Whittle. ??While Zhu Linyu and Lin Zuoming were asking about the situation, he read it from beginning to end probabilistically. There is no information of particular concern. Its not a surprise. ?Meeting minutes are something that each party keeps a copy of. Of course it doesnt matter to China, but the British side may not be willing to put some important content on paper. After the other two people asked a few non-technical questions, Chang Haonan finally got the chance and asked: Manager Ren, has the other party mentioned some specific technical characteristics of this kind of aero-engine turbine assembly? While speaking, he also slightly adjusted the position of his seat to avoid making the scene too close to the three-chamber trial. Not during the talks. Ren Bingda shook his head without any hesitation: But after the conversation, Whittle mentioned to me that he didnt have to worry about not being familiar with the turbine structure because it was very close to a model we were producing This somewhat riddle-like description made the three people opposite look at each other in confusion. ??To talk about the models being produced by Haofa Group that are related to Rolls-Royce, the first thing that comes to mind is of course the Turbofan 9. ??However, the British have long given up on the entire Spey series at the aviation development level, and it is impossible to produce a new product that requires cooperation with China. The only ones left are the Turbojet 8, M250, and D436. The first two are outrageous no matter how you think about them, so... Three rotors ?Chang Haonan quickly captured the key words. ?In Rolls-Royce''s current product line, the two leading turboprop engines are actually the products of Allison acquired in the early years. They use a single rotor + free turbine. Of course, it can also be said to be some kind of dual-rotor design. As for the original British three-rotor, there is only... Trent series. ?When this answer popped up in his mind, even Chang Haonan, who had experienced strong winds and waves, couldn''t help but stop breathing for a moment. This is not a small game like M88 or SeA650. ? Among the entire Trent series of engines, the smallest one is the Trent 600 with a thrust of "only" 28.5 tons. However, because the McDonnell Douglas MD-11, Boeing 747-400X and Boeing 767-400ER failed successively, it became one of the rare Rolls-Royce models that had its aerospace project canceled due to lack of installation targets. The limited-time experience card of China Aviation Industry belongs to yes. Among the other models still under development, the smallest Trent 700 sub-model also has a thrust of 31 tons... 31 tons! In the previous life until Chang Haonan was reborn, although China had already built the fourth-generation engine turbofan 15, it still did not have a model that reached this level of thrust. It can be said that the Trent series engines are one of the cornerstones of the European and even the worlds air transport industry. Now, an opportunity to participate is right in front of you. "I think it''s better not to make a decision so quickly..." Lin Zuoming happened to say at this time: "The other party has only given ambiguous conditions and refused to give detailed technical parameters and specific processing requirements for the parts to be processed. I am worried that it is a trap deliberately set for us... What if it is like the situation encountered by the shipbuilding industry before? Its like Zall Group. Do you want to take our liquidated damages? As a leader who has worked on the aviation front for decades and has had many dealings with the West, he is indeed very vigilant. Zhu Linyu was obviously somewhat moved: Thats trueso Comrade Zuo Ming, what you mean is that we wont Mr. Zhu, its okay. At the critical moment, Chang Haonan couldn''t care much anymore and quickly interrupted the other party. Zhu Linyu and Lin Zuoming looked at him at the same time. "you mean" The risks Mr. Lin mentioned do exist, so its best for us to have more in-depth contact with Siro...In fact, its best to have direct contact with Rolls-Royce Group. Chang Haonan made a smooth transition at first, but then changed the subject: My opinion is that even if there are risks, as long as they are within control, we will continue this cooperation! "The British came to us for air film hole processing because they saw the technology applied to SeA650 and it has already been mass-produced. Although the process parameters of ultra-short laser processing for different base materials may be completely different, this time... I will personally take the lead in taking charge of the project! Hearing this statement, Ren Bingda almost jumped out of his chair ?The last aviation development project that Mr. Chang personally took the lead in was the Turbofan 10. The significance of this model itself goes without saying. ? Even if it was just some scraps from the process of developing the turbofan 10, it helped their Haofei Group solve the long-standing problem of localization of the SPEI MK202. Not only did he solve the problem, but he also improvised an upgraded model with better performance. To this day, Turbofan 9A is still the most important job of Haofa Group. ??Now that Mr. Chang takes action again, he can''t even imagine how much benefit it will bring. And Zhu Linyu was also stunned: Comrade Haonan, I dont mean to question your ability, but after all, one person is limited in his ability. You already have a lot of projects on hand. If you personally take care of another one who is far away in Haojing..." Dont worry, Mr. Zhu, I can arrange it. Chang Haonan replied: If it doesnt work, you can consider postponing other work for one stage and give priority to this cooperation project! "this" Even Ren Bingda was greatly surprised at this time. As for the other two, let alone mention them. If we successfully cooperate with Rolls-Royce, it will indeed improve our status and visibility in the international aerospace industry to a certain extent, but the other party will certainly not publicize the work we have participated in, and will not allow us to fully participate in it. Throughout the development of aero-engines..." ?Lin Zuoming said doubtfully: Mr. Chang, is it really such a high priority? Chang Haonan waved his hand: Participating in overall research and development is really a bit too whimsical... at least not yet possible. "However, a new type of high-temperature-resistant titanium-aluminum alloy is used on part of the turbines of the Trent series engines. This is a gap in my country''s current aviation materials research... And since the other party wants us to process products, even if it is a pure OEM, they must provide relevant information. Turbine substrates, and coating information." At this point, he clenched his fists and knocked on the table: Even if this information may not be complete, it is still very critical technical intelligence for us! (End of this chapter) Chapter 1025 This time it’s really subcontracting. Chapter 1025 This time it is really subcontracted... The Trent series engines have entered China with the Airbus A330/340 and Boeing 777 series aircraft, and their basic structure is not a secret. ?It''s just that Zhu Linyu and Lin Zuoming have no longer been responsible for front-line work in recent years, and the strings in their minds were too tight, so they couldn''t react immediately. But after Chang Haonan pointed it out directly, the two quickly realized the value of this project. Mr. Chang must be thoughtful... ?Lin Zuoming also hurriedly borrowed the donkey to get off the slope: Ive been sitting in the office for too long, and Ive only been thinking about contract risks In addition, even from a publicity perspective, there is still room for maneuver. Chang Haonan further added: Since Rolls-Royce contacted Haofa Group directly through Ciro, it really shows that they are unable, or at least unwilling, to bring us out to speak openly and openly. Of course, this is understandable. Although Chinas reputation in the aviation development field has improved a lot in recent years, it has no negative impact at best. There is still a gap between it and a golden brand like Rolls-Royce. But we can change our thinking and let Airbus promote that we are a second-tier supplier of core subsystems for passenger aircraft..." Originally, the second-tier supplier is not particularly sensitive. Considering the Chinese market and our cooperative relationship, Airbus should not refuse..." In fact, this paragraph can be regarded as supplementing the publicity value mentioned by Lin Zuoming earlier. Ren Bingda, who was opposite him, could no longer sit still. He took advantage of a moment when no one was speaking and asked quickly: Those... leaders, our next step should be..." This time, the three of them looked at each other, and finally gave the opportunity to speak directly to Chang Haonan. The latter knew that this was not the time to shirk, so he immediately spoke: "You can continue to talk to Ciro in name, but the person you meet with specifically must be directly the management of Rolls-Royce with certain authority. Of course, we will also give you equal decision-making power at the group level. " Otherwise, the high-level officials on both sides would relay the remote dialogue in three rounds like today, which would be inherently inefficient and may involve a conflict of interest between Ciro Company and their headquarters. The result may not be reached until next year. ??When Ren Bingda heard Chang Haonan say that he would delegate power to him for negotiation, he straightened his back almost involuntarily: "yes!" "besides." ?Chang Haonan reached out and pressed down, indicating that the other party did not need to be so serious, and then continued: If the British side has been avoiding the more important aspects during the negotiation process, then you can go around in circles with them, but the premise is that you must at least find out from the other party what type and parts we need to process..." In fact, if possible, Chang Haonan would even like to go to the negotiating table in person as he did back then. The conditions given by the British were too ambiguous. Turbine parts. Sounds like quite accurate. ??However, the turbine of the British three-rotor engine is divided into three parts: low, medium and high pressure. The working environment, design and material differences between them are very obvious. ?For example, the operating temperature of low-pressure turbines is far less exaggerated than that of high-pressure turbines, and some are even below 1000K, so the requirements for materials and heat dissipation are correspondingly lower. Therefore, which process the other party wants to hand over to China will have a great impact on the preliminary preparations. ?However, after all, he is now a top-notch leader of the Aerospace Power Group. Even if he wants to come forward, it cannot be during such early contacts. So we can only entrust it to Ren Bingda. Originally, Chang Haonan did not have any expectations for the efficiency of British companies. Thats why Ren Bingda was asked to obtain some key information through indirections, but he was not in a hurry to talk about the results. In fact, he was even mentally prepared for a tough tug-of-war. But the actual situation is... ?After Ren Bingda returned to Haofei Group and responded to Xiro Company in accordance with Chang Haonan''s request. It took only two days for them to receive a response. ??Although it was still transmitted through Brin and Whittle, it was obvious from the content that this was the attitude from Rolls-Royce headquarters. The other party stated that it understood the Chinese sides request for face-to-face negotiations, but due to some business restrictions, currently only one project manager can be sent to China with his entourage to conduct talks as the British representative of Ciro Company... This efficiency directly surprised Chang Haonan. So un-British. Even Ren Bingda, who had previously been thinking about Haofei''s possible success, began to wonder if the British had dug a hole somewhere waiting for him to jump into. However, after carefully reading the content of the reply letter, the former felt relieved. Luo Luo obviously doesnt have much time to waste. Hurry. Furthermore, not sending a formal delegation also shows that they need a white glove. For Chang Haonan, this is too familiar. It was a similar situation when Bingfei Group participated in the NH90 project. Finally, I picked up a straight 12-inch design at almost zero cost. Its just that Luo Luos requirements are more stringent now. Even for suppliers, it may not be convenient for the China Aerospace Power Groups LOGO to appear directly. Thats why we rely on the Xiro Company, a joint venture between the two countries, for all services. This cannot be a trap. After all, if you are going to dig a hole, the more formal it is on the surface, the better. Just like what happened with Xizhuoer Company back then. ?The financial and legal teams alone have dozens of people. It greatly shocked the Hudong Factory, which had not seen much of the world at that time. Hence, Chang Haonan immediately gave instructions. Can negotiate with the British. The process of contact between the two parties was no different from Chang Haonan''s speculation. The representative sent by Rollo was called Luke Norris. The level is not high, but the position is still key, and he can be equal to Ren Bingda. ?The other party got straight to the point in the first round of negotiations, saying that the contract needed to be signed by both Rolls-Royce UK and Ciro, and then Ciro would outsource the production tasks to Haofei Group in a relatively hidden form. In addition, they have strict requirements on the quality and construction period of the finished parts, so they hope that Huaxia can provide a batch of samples for inspection before formally signing the contract. This is one of the situations that Chang Haonan had already preset. Therefore, Ren Bingda immediately expressed his agreement in principle Siro Company is a joint venture established with a 50:50 share ratio. ?Although it may sound a bit strange for a subsidiary to outsource its business to the parent company, there is no procedural problem. ??And in addition to the two British representatives, Xiro Company actually also has a management team sent by China. Even Ren Bingda himself is one of them. Just not very involved in daily management. With this layer of insurance, at least there won''t be any big mistakes. ?Of course, he also put forward Chinese conditions. The British side shall fully cooperate during the execution of the contract and shall not set up additional obstacles in the handover process of semi-finished raw materials, technical information, products and finance. In particular, the characteristic information of the substrate to be processed must be provided in accordance with China''s requirements... After going back and forth, by the time the negotiations reached the third round, both parties had reached a consensus on the content of the sample trial production contract Within three months, Ciro Company will process air films for a total of 5 sets of high-pressure and medium-pressure turbine disk/turbine blade assemblies of Rolls-Royce''s RB211-524B4 aeroengines in accordance with the parameters and requirements noted in the attachment. hole. ?If the acceptance is passed, Rolls-Royce will guarantee to provide a processing contract for no less than 100 sets of parts of the same or equivalent level within the next three years. Immediately afterwards, a contract with almost identical contents, except that Party A and Party B were replaced by Xiluo Company and Haofa Group respectively, was also signed on the spot... that''s all. ?With Airbus and even Rolls-Royce executives being kept in the dark. China Aviation Power Group has quietly become a secondary contractor for the A380... (End of this chapter) Chapter 1026 Production efficiency that Luo Luo cannot understand Chapter 1026 The production efficiency that Luo Luo cant understand... ?When Chang Haonan saw this sample trial production contract in the conference room of Haofa Group, he immediately laughed out loud... Uh...Mr. Chang? ?Ren Bingda is still a little unclear. "nothing." Chang Haonan was wearing a blue overalls that he had not worn for a while. He shook his head with a hint of ridicule: RB211-524B4The British are really careful ??As he spoke, he flicked a piece of information on the table and explained to the other party: This model is a Boeing 747-200, and it has the same power as the L1011-200. Its almost 20 years old and will be phased out soon... How could there be any special-shaped air film holes that we need to process? To put it bluntly, we still dont trust our level, and we are worried that useful technical information will be taken away by empty-handed white wolves... so we first throw out a less advanced old guy to explore the way. After clarifying the words, Ren Bingda naturally understood it instantly, and quickly came over and asked: Then lets To remain unchanged in response to all changes. Chang Haonan didnt wait for him to finish the question before he answered directly: "No matter what, the British are Party A...actually they are Party A''s Party A, and it is also the first time they have such in-depth cooperation with us. It is normal to be a little suspicious..." In addition, the RB211 engine is relatively conservative in the use of materials. According to the information provided by Rolls-Royce, although it is different from our specific brand, the turbine part is still mainly made of nickel-based alloy, so..." While the two of them were talking, slightly chaotic footsteps came from the corridor outside. Soon, a group of about fifteen or sixteen people appeared at the door of the conference room. "Report!" A technician wearing the same work clothes as Chang Haonan said loudly. Come in. Chang Haonan had no choice but to temporarily suspend the topic, motioned for everyone to take their seats in order, and then opened the technical information in front of him, preparing to introduce the key technical aspects of this sample production. ?However, when he raised his head again, he accidentally caught a glimpse of a somewhat familiar face among the crowd. Chang Haonan searched in his mind and quickly found a matching name: Are you...Comrade Zhang Zhenhua? ?Zhang Zhenhua, the director of the technical department before 430 Factory was completely restructured into Haofei Group. ?? He was also one of the representatives sent by Factory 430 to Shengjing to learn from the experience when Chang Haonan launched the precision engineering plan based on the turbojet 14 project. He later also participated in the Turbofan 10 project and played an important role in the verification of some technologies. However, as the Turbofan 9A, which was the Turbofan 10 technology verification model, began testing, Zhang Zhenhua had to leave the project team and return to his original unit to take charge of the work. Since then, the two have not seen each other again. Its been almost four years since we were separated. ?Zhang Zhenhua, who was still in his prime at that time, had already turned gray at the temples. Considering the age of the other party, the simple passage of time may not be enough to bring about such a huge change. Apparently, he is also worried about the Haofa Group... Mr. Chang. Zhang Zhenhua, who was directly called by his name by Chang Haonan, stood up and shook hands with the former with some evasive eyes: Im really ashamed ?The expression on his face was a little gloomy: After so many years, now we have an opportunity in front of our Haofa Group, but we still have to trouble Mr. Chang to take charge of the project personally... ?After so many years, Zhang Zhenhuas title is still the director of the technical department of Haofa Group. The pace of progress has indeed failed to keep up. Of course, this is also related to the actual situation of Haofa Group. Whipfan 9 is a digestion and absorption technology, D436 is directly introduced into the final assembly, and NK32 is not easy to understand in a short time. The self-developed turbofan 20 is still in the project preparation stage... In short, compared to the big brother next door, the results are indeed not very impressive. Whats this Chang Haonan smiled immediately after hearing this and said with relief: Ultra-short laser processing is, after all, a technology developed under my leadership. It is your first time to come into contact with it, and it is normal for you to be unfamiliar and uncomfortable with it. In Shengjing, it was only after I took them through the process that some people gradually began to be able to take the lead..." "And from another perspective, the idea of ??using ultra-short lasers to replace continuous lasers can be concealed for a while. If the technology itself is really that simple and can be completely familiar to you in a year or two, then how can other countries Cant we catch up soon? ?This angle is indeed relatively fresh and refined, so that Zhang Zhenhua, who was a little depressed just now, was stunned for a while after listening to it. ?Then I think it does make some sense... Okay, lets get to the point. We are all adults, and we can only rely on ourselves to adjust our mentality. Therefore, Chang Haonan did not say any more, but stood up directly and came to the back of the small podium: I think comrades should already know the general situation, so I wont go into details. In short, the turbine part of RB211-524B4 is still mainly made of nickel-based alloy, so the database we built before can be directly used. ?He said that he turned on the computer, and a PPT page appeared on the screen: Of course, the specific parameters of the British base materials are quite different from ours, so we still need to use the blanks provided by them to conduct several rounds of experiments..." For Chang Haonan, this process is basically familiar. ?Although the workload is not low, there are sufficient manpower after all, and there are also several experienced veterans from the 606 Institute. The only problem is the equipment. Haojing Institute of Optical Mechanics has currently produced a total of four sets of ultra-short laser processing equipment including prototypes. ?Two sets of mass-produced models are both in Shengjing, and the other two sets of prototypes are in the Institute of Optics and Mechanics and Chang Haonan''s laboratory. So Haofa Group does not have a production line on hand. The current samples can be temporarily processed by borrowing several other sets of equipment, but future mass production will definitely not be possible. Hence, after the contract was signed, Haojing Optics and Mechanics Institute was busier than Chang Haonan and others, working three shifts a day to produce the third set of mass production equipment for Haofa Group, striving to install it before the official contract was signed. Even under such conditions, Chang Haonan still led the team to complete the production of two batches of five sets of parts in less than half the time stipulated in the contract... 2002, August 3. England, Derbyshire. Tim Purdy, who had just finished a technical meeting, returned to his office with a stack of documents, and then rubbed the corners of his sore eyes. About a month and a half ago, the Trent project team unanimously agreed to find China Aerospace Power Group through Xiluo Company, and the latter would manufacture turbine discs and turbine blades using new film cooling technology. ?Although it is still in the "investigation period", the development of Trent 900 has actually started walking on two legs since then. That is to say, while restoring the earliest design and restarting the testing process, preparing to use more fuel-efficient products to compete with the GP7200, it also continues to advance the subsequent plans to prevent China from falling behind. It is of course good to be prepared with multiple hands. However, the price is that almost everyones workload is doubled. "director" ?Purdys secretary Kelly Toulson walked in from outside: Recently, many people have asked me privately when the current situation will end. The entire project team now works an average of more than 60 hours per week. If this continues...the union may also come to us for trouble. For British people, this way of working overtime is indeed a bit fatal. ?The time period is okay, but this has been going on for almost 40 days, and the sky is really boiling down. ?Hearing the other party mention the union, Bodi hesitated a little. But in the end he shook his head; Theres really no way now the two technical routes must be advanced simultaneously, and neither one can be given up. When we signed the contract, we gave the Chinese people three months, and now... ?He sighed softly, and then glanced at the date on the computer screen: Its only been 38 days now... Even if they can deliver the goods on time, they will have to wait for almost seven more weeks. ?Hearing this terrifying number, even Kelly, who had a relatively easy job, felt a little nervous and resisted the urge to roll his eyes. Well, you can find an opportunity to tell everyone, and after this period of time is over... ??Poody originally wanted to invite everyone to take a vacation during the summer public holidays, but that day was the last Monday in August. According to the three-month period, not only would it be impossible to take a vacation, but he might even have to work overtime... During the Christmas holiday, the project team paid for everyone to take turns vacationing in the Mediterranean He had no choice but to wait until Christmas. As expected, Kelly put his hand on his forehead and shook his head. ?This pie was too far away, and it was difficult for her to tell her colleagues... But it seems that there is really no other way. At this moment, accompanied by the sound of hurried footsteps, a figure appeared at the door of the office in a hurry. Even forgot to knock on the door. Director, Director Bodie! ?Although Kelly blocked his view, it was not difficult to tell from the voice that the person coming was Luke Norris, who had just been under his command some time ago. Norris? ??Podi frowned. ?The other party''s character is usually quite stable, but today''s appearance is really unseemly. Director, I just received news from Siro Company. Norris ignored the explanation and placed a document in his hand in front of Bodi while panting heavily: That batch of samples... has been completed and will be sent to us within a week... for testing! For a time, the only sound left in the huge office was Bodi''s heavy breathing. Are you talking about the batch of samples that were handed over to the Chinese for production? ? Bodi slowly reached out his hand and opened the folder on the desktop. ?There was only a piece of paper inside, and the content written on it was exactly the same as Norris''s return just now. Thats right, thats the batch. Norris had already taken a breath now, stood up straight and replied: Actually, Mr. Whittle had already gone to the Huaxia factory yesterday to inspect this batch of goods. It was just because of the time difference that we were notified now. ??Pody feels that this world seems a little unreal. He glanced at the date on the computer again. Because he was worried, he looked at the calendar next to him again. No problem, August 3rd. ??? In fact, the three-month period was specially shortened by Bodite. ??The bottom line set internally by Rolls-Royce is that as long as the Chinese people can produce qualified products before December. After all, after taking over a new material, process development will take some time. but ?No one has ever thought that this thing can be delivered ahead of schedule? (End of this chapter) Chapter 1027 Sometimes, too fast may not be a good th Chapter 1027 Sometimes, too fast may not be a good thing If anyone is happiest right now, its Kelly Toulson. In fact, her first thought was to ask if the vacation promised by Bodie just now was still considered. After all, the latter is about waiting for this period of time to pass. Even though he didnt know much about technology, Kelly could tell that this period of dark overtime work was probably about to end. ?However, after feeling the atmosphere in the office for a while, she felt that now might not be a good time to ask this question. ??It would be better to release the news directly according to Bodi''s request. By then the deal will be done and he will have no choice but to disagree. Thinking of this, Kelly quickly said that as an administrative secretary, he should not be too involved in technical work, and then quickly turned around and left... But in fact, Bodie didnt pay attention to Kelly at all. He didnt even notice that the latter had left. Mainly because of the news just now, the sequelae are indeed a bit serious. One week ?He knocked on the table a little irritably, raised his head and looked at Norris again: Cant it be faster? In fact, Bodi had been prepared to wait for 3-4 months. ?However, preparation was all about preparation. When he heard that the product had been offline, but it would take another week to be delivered to the UK, all his previous mental construction collapsed in an instant. I wish I could receive the sample the next day, see the test results on the third day, and then completely switch to the previous technical route and beat the GP7200 with lower fuel consumption... Jijiji, I am the king of Jiji.jpg "Um" Norris looked troubled: Director, you also know that after all, import and export still need to go through customs declaration procedures, and the total size of those samples is not small, so it is impossible to check in luggage on a passenger plane. There are not many cargo planes between China and the UK. If we go in advance, Im afraid..." Obviously, as far as cross-border transportation is concerned in the early 21st century, 7 days is indeed not too slow in normal terms. In fact, this is because the Aerospace Power Group has exerted some influence through the Commission of Science, Technology and Industry for National Defense, otherwise the customs declaration process alone would have taken longer. ?Of course, Luo Luo still doesnt know about this for the time being. And Bodi is naturally still a little unwilling to give up: Maybe we can send a cargo plane to bring those things back... As one of the world''s leading aviation manufacturing giants, Rolls-Royce naturally has its own fleet of transport aircraft, operating multiple models of aircraft including L1011, Boeing 757, and 777. For a big job like Trent 900, its not a bad trip. But supervisor, if you specifically adjust the aircraft, the destination and cargo category must be recorded. This is difficult to fake. ?While Bodie was getting a little impatient, Norris still maintained a considerable degree of sanity: By the time of the year-end review, it is possible that the above... This sentence instantly reminded the former: ??Podi woke up instantly. ??The Chinese people deliver goods in advance, which is not always a good thing for them... According to the previous plan, in order to hide the truth from the board of directors, especially to prevent them from thinking that such advanced technology can be developed with only tens of thousands of pounds per year, the Trent 900 project will inject large sums of money into Ciro in the next few months. R&D funds and spread this investment throughout the year through a series of financial means. In this way, it can be said that Ciro Company gained some new inspiration in the process of helping China master the Spey MK202 technology, and before that they had been using China''s resources to conduct theoretical research. But because this technology is so important to the Trent 900, we have invested a lot of money starting this year to advance it to the engineering stage and then solve the problems that have troubled us for many years. Although the price/performance ratio is still a bit too high, because there are "Chinese resources" as a black box in the middle, it is barely justified. But this requires that the entire project must remain low-key until the end of the year. ??Sending a special plane to pick her up will definitely eliminate the need to think twice. ?Even if everything goes well later, there will be problems even with the formal contract provided to China Its too early. ?The money hasnt been fully paid yet, but your production contract has already been signed? It always seems a little strange. But if we really wait until the end of the year according to the original plan... ?Podi really doesnt have that patience anymore. "Forget it, let''s talk about it then...at worst, we''ll make a fuss about the contract time..." ??Podi shook his head helplessly and thought to himself. After all, the signing date is pushed back rather than brought forward, which actually does no harm to China. Immediately afterwards, he stood up again, ready to tell Dr. Lapworth the good news. As the developer of new film cooling technology, the latter is undoubtedly the one who is most looking forward to the success of the Chinese people among everyone... ?While everyone at Luoluo headquarters was waiting impatiently, 7 days passed as long as 7 years. Finally, they received a cargo box from China on August 10th. Inside are 5 sets of turbine parts that have been processed. Although it is already an outdated model, it is definitely the most precious thing for the current Trent 900 R&D team. In the test workshop, Lapworth removed a high-pressure turbine blade from the bracket and placed it on the integrated elastic displacement sensor next to it. In fact, until now, there is still no particularly perfect technology that can accurately measure the detailed data of such ultra-small special-shaped inner holes. Only use specially modified probes, combined with elastic displacement sensors, to obtain as accurate results as possible. Fortunately, the air film hole is indeed precise, but some details do not need to be stuck too tightly. After all, in engineering design, everyone will leave a margin... Looking at Lapworth, who was immersed in the test bench, the air in the workshop was inevitably a bit depressing. Everyone is waiting for the final result. Supervisor, wait a minute... Do you need to go to the simulation test bench to test it? ?At this time, people were so nervous that they didnt know who was who. Anyway, there was a person, perhaps to relieve the tense atmosphere, who suddenly asked Bodi in a low voice. No need. ??Podi didn''t even move his eyes, he just moved his lips: These sets of samples are just to move the air film hole design of the Trent 900 to the RB211 to initially witness the processing capabilities of the other party... There is no design at all, so there is no test standard. As long as the physical dimensions are okay and no damage is found, it shouldnt be a big problem. Because the entire plan to find a Chinese OEM was made within a few days, it is inevitable that there will be some omissions. But as long as there are no mistakes on the big picture, it will be fine. After all, after the real product is in place, the entire process will definitely be tested. ? With a century-old foundation, Rolls-Royce never dares to be careless in terms of reputation. ?Especially...this is the first time that core components have to be outsourced. But among the parts we really need to process... there are two sets of low-pressure turbine discs made of titanium alloy. The processing properties of these are completely different from those of nickel-based alloys. Could it be..." Another voice also asked. Well...it just depends on the situation. ??Podi sighed softly: If this is not possible, the low-pressure turbine can also use traditional materials... Anyway, the original choice of titanium alloy was just for technical verification. It is just two sets of turbines. In fact, there is not much difference in weight. Supervisor, have you ever thought about it, if the quality of the Chinese products is not up to standard, then during this period of time we... The third question is obviously a little inappropriate. ?Not only Bodi, but also the faces of several people next to him suddenly dropped Everyone has actually thought about this matter to some extent. The worst result is to continue to use the design that reduces the combustion chamber outlet temperature. In fact, there is not much loss. But psychologically, its completely different Fortunately. At this time, Dr. Lapworth finally raised his head. ? She habitually stretched out her hands to comb her hair, and then breathed a sigh of relief: Size, up to standard! (End of this chapter) Chapter 1028 A really big contract, things are changing! Chapter 1028 A really big contract, things are changing! ?While its impossible to make a final decision from just one test on one sample, a good start is certainly exciting news for everyone here. At least the worries about completely substandard products can be put aside for the time being. ?Even if some minor flaws are discovered later, there may not be no chance of remedying them. After all, less than 40 days have passed since the originally scheduled three months, with a minimum guarantee of four months. According to this efficiency, it is enough to produce four batches of samples... Besides the size, are the processing defects serious? ??Podi took two steps forward, leaned over and looked at the screen twice: I remember reading several papers from China before. Their technical route should be laser thermal processing, and the surface morphology of the air film holes..." ?The Nature article written by Chang Haonan back then had a huge influence. As the saying goes, if you want to deceive others, you must first deceive yourself. ?After his paper was published, technical personnel in China studying material processing, especially thermal processing of metal materials, flocked to this direction. In just a few years, many articles with a certain level of quality were published. ?Of course, this cannot be called a waste of resources. In scientific research, sometimes we cannot pursue cost-effectiveness. In most cases, those truly valuable results are sifted from a large amount of academic garbage. Like the studies above. Although we were unable to produce another usable engineering equipment until the end, we still explored the characteristics of various types of metal materials and at least accumulated a lot of meaningful data resources. And objectively, it does play a very good role in confusing Although some cutting-edge scholars have begun to re-examine the feasibility of continuous laser thermal processing and even question its application potential in principle, the current mainstream research direction has not changed anyway. ?So much so that even senior engineers like Bodi are not exempt from this practice. The complete morphology needs to be done at the electron microscope for destructive testing before we can know it. It will take about three or four days to wait. Dr. Lapworth shook his head and replied: "However, from the test results I can basically infer, there should not be a particularly obvious remelted layer, otherwise the compliance rate of the channel shape would not be as high as it is now... In addition, due to the same reason, the crystal phase situation should not be as high as it is now... There will be significant changes. As for cracksits hard to say. Whether its direct observation or relative density detection, its probably too late today Hearing this judgment, Bodi frowned in confusion: There is no remelting layer He picked up a turbine disk from a bracket not far away, raised it in the direction of the fluorescent lamp and stared at it for a moment. It was naturally impossible to tell any clues with the naked eye, so he quickly shook his head mockingly and put it back: Actually, I had been thinking about how the Chinese people were going to solve the problems of hot melt effect and alloy structure defects two years ago... "Later, I talked about the Chinese paper with Professor Martin Bock of the Appleton Laboratory. He also felt that although the theoretical part in it was very sophisticated, with China''s current industrial level, it would be difficult to actually manufacture equipment that meets the requirements. For Bodie, the Trent 900 is important, but in the final analysis it is just one of a series of models. In contrast, he is more concerned about the Chinese people''s craftsmanship in processing such air film holes. Thats not my concern anymore Lapworth shrugged: Those of us who engage in numerical calculations have been using calculation tools developed by the Chinese for several years The implication is that I have become accustomed to it. But after a short pause, she changed the subject: But I heard that China has been importing high-precision control motors and drive motors in recent years. If you are particularly interested, you can ask people in the related industry. "Um" In response to this proposal, Bodi gave a noncommittal hum and did not make a clear response. In fact, for a moment, he wanted to ask Lapworth if he could consider reverse engineering China''s technology. The reason why I didnt say anything in the end was because I only had the finished parts after processing on hand, and I had never even seen other peoples equipment, so the conditions were really not enough. The second thing is... ??Reverse engineering, to put it bluntly, is imitation... and to put it more clearly, it is copying. ?This is completely different from the nature of borrowing ideas. Its not that Bodies moral level is very high. Instead of imitating a Chinese technology... Its true that I cant overcome this psychological barrier I am here with you, the birthplace of the industrial revolution. I am Luo Luo, one of the top three aviation giants in the world. China can understand this technology, so why cant I do it? With this mentality, he finally decided to go to the process department first to see if he could think of a solution from a positive perspective. At least, it is now certain that mass production can be achieved through laser processing. After all, there are 5 sets of turbines right in front of you. Although the original electrochemical processing method can also produce qualified products, it has almost been sentenced to death in terms of efficiency. Its time to switch the focus of research. Spurred on by extra holidays and free holidays, a group of British people showed a very un-British efficiency. ?Before the end of August, they not only completed all testing projects, but also completed a series of administrative procedures and sent more detailed processing requirements to Ciro Company. Of course, it is equivalent to sending it to Haofei Group. Finally Chang Haonan sat at the head of the conference table, looking at the stacks of paper materials being moved out of the cart, showing a pleased expression: These British guys are finally willing to let go... ?At this time, Ren Bingda just walked in from outside in a hurry. Although I cant hide the exhaustion on my face after running around these days, I am still very energetic: Mr. Chang, we have completed the handover and preliminary arrangement of all materials. He took off his work hat and sat in the first seat on the left side of Chang Haonan: The formal order given to us by Rolls-Royce is for the high-pressure and low-pressure turbine parts of the Trent 900. The processing requirements for the air film holes are basically the same as those of the previous RB211-524B4, but there are certain differences in the arrangement and distribution of the holes. After finishing speaking, he picked up the paper cup next to him and took a few sips of tea. Sure enough, its this modelthe power of the Airbus A380! ?Chang Haonan slapped the table excitedly. In fact, when he first speculated that the processing target was Trent series products, he thought about whether it would be Trent 900. ? It''s just that becoming a second-tier supplier of Airbus A380 in one step is almost equivalent to entering the core system of the world''s aviation supply chain - The industrial park in Luzhou mainly undertakes some peripheral businesses, and all products will only be installed on aircraft sold to China. Equivalent to self-produced and sold. But this time is different. As long as the A380 purchased around the world is equipped with a Rolls-Royce engine, it must be equipped with parts produced by China. It is still an irreplaceable core component. ?That''s the A380... Its completely different from small things like Rafale or Falcon business jets. Its almost too good to be true Therefore, Chang Haonan never spoke out because he was worried that everyone would expect to break the defense without permission. But now, its almost time to open the champagne. This is a great opportunity. After thinking for a moment, he said to Ren Bingda: If you, Haofei, can do this business well, you probably wont have to worry about order issues for at least the next 20 years "Isn''t this Mr. Chang..." ?Ren Bingda quickly switched to flattering mode: Ill definitely do it well! Chang Haonan waved his hand seriously: I can only take you this part, I cant do it myself all the time. When it comes to processing and manufacturing, even if the process is familiar, the final implementation still depends on the level of production organization, so we cant relax no matter what While the two of them were chatting back and forth, the transfer of relevant information and texts was also completed one after another. A table full of people was piled up. I remember... the low-pressure turbine of the Trent 900 should have used a new high-temperature resistant titanium alloy. Chang Haonan took a deep breath and quickly returned to the topic: Comrade Bingda, go and gather the key comrades of the project team. Our next main task is to overcome the processing technology problem of titanium alloy materials... (End of this chapter) Chapter 1029 Does the Trent 900 have a design flaw? Chapter 1029 Does the Trent 900 have design flaws? That evening, the R&D team, which had been officially named the Trent 900 Turbine Production Project Team, held its first project seminar attended by all major members. Comrades, I think there is no need to emphasize the importance of this task to Haofei and the entire group. ?Chang Haonan opened the game and went directly to the topic: "The production contract given to us by Rolls-Royce includes two parts. One is the relatively traditional high-pressure turbine. I briefly looked at the information on this part in the afternoon. It is an upgraded model of the aviation materials used in the RB211-524B4. It can be found at Build on previous experience. He pulled out a piece of paper from the folder in front of him: Moreover, after preliminary testing by the technical department, the turbine blades given to us by the British are semi-finished blanks. The blade shroud has not yet been processed, and the surface has not been coated with a heat-insulating coating..." Obviously, as an established company, Rolls-Royce is still on guard against some particularly sensitive parts. ??Although hiring someone to process it will inevitably reveal some confidential information, by removing the two key details of the turbine structure, the detailed design parameters of the blade tip and the material used for the heat-insulating coating, it can at least prevent China from replicating a Trent 900. By 2002, very few Western companies dared to say, I cant even make technology if I leave it to them. Of course, everyone just takes what they need in business, and its normal to keep one hand. Chang Haonan is very open-minded about this: Moreover, such semi-finished blanks are easier to handle. Firstly, there is no need to consider coating issues, and secondly, the clamps can be directly fixed on the blade ends and blade roots, without even redesigning..." In general, this part of the work is to find suitable processing parameters based on the properties of the new nickel alloy material. There may be some workload, but it is basically step-by-step. When they first heard this, everyone, especially Zhang Zhenhua, couldn''t help but heave a sigh of relief. As a result, Chang Haonans next sentence made them stop laughing: So, now that I have accumulated previous experience, I am ready to leave it to you to do the high-pressure turbine... After finishing speaking, the former held his chin with both hands and glanced flatly at the many faces in front of him. And stayed in several locations for a period of time. ? Its like thinking about who to pick as the lucky listener In an instant, the temperature in the conference room seemed to have dropped a lot. ??Although Chang Haonan''s expression is still warm, in the eyes of others, he is like the head teacher who appeared outside the back door window of the classroom when he was at school... ChangMr. ??Chang. ?Zhang Zhenhua subconsciously looked around and felt that there was a high probability that this matter would fall on him, and he inevitably felt a little guilty: I think...should it settle down a little more? ?This cant be blamed for his slow understanding. When the turbofan 10 production was finalized, Chang Haonan himself started researching it from scratch. Although the 606 Institute may not have been able to keep up with the pace at the time, it at least went through the whole process. Its amazing that you can slowly understand it after you go back. But when it came time to trial-produce the RB211 turbine blade sample, not only Chang Haonan himself was already very proficient, but even the senior staff who came to support from the 606 Institute had already experienced the two models of turbofan 10 and M88-3. So the progress is actually very fast. You know, Luoluo felt that almost 40 days had passed, but in fact, for Haofei, after receiving data, matching requirements, and several rounds of trial production, it only took a month. In addition, Zhang Zhenhua was born in Factory 430, so his foundation is already weak. Its normal to feel unsure. ?But Chang Haonan knows very well that if you dont push some people, they will never reach their limits. ?Moreover, he happens to be in Haojing right now, so even if something goes wrong, he can easily find out. ??If you wait until the end of this project before letting Zhang Zhenhua start taking the lead, the cost of error correction will be high... Old Zhang Chang Haonan said in a half-joking tone: We have two production tasks at hand. The other one is a low-pressure turbine using high-temperature resistant titanium alloy. This type of material is almost completely blank for us. Originally, I planned to be responsible for the latter part myself, but if you really dont want to, then we can change it... It can only be said that the roof-lifting theory is indeed useful sometimes. ?Zhang Zhenhua, who was numb, suddenly shook his head: No, no, nothen Id better take charge of the high-pressure turbine part The meeting room was suddenly filled with cheerful air. ?However, at this time, you cannot just squeeze it. Definitely still need to give some support. So, after the laughter gradually subsided, Chang Haonan continued: In addition, I will ask Comrade Chen Zhongsheng and Comrade Zhong Yi to join you as technical consultants. They are already relatively experienced in the process development of nickel-based alloy materials. I believe that with the cooperation of the three of you, we will be able to properly solve the production problem of high-pressure turbines... The two names he called were from the 606 Institute and Liming Factory respectively. They were all technicians selected by Liu Yongquan to support the work of his brother units. ?Furthermore, if nothing else happens, Zhong Yi will still stay in Haojings leadership position even after the project ends. Then thank you, Mr. Chang Zhang Zhenhua''s originally pale face turned a little red. ?Chang Haonan waved his hand and then switched directly to the next topic: Next is the part about the low-pressure turbine At this point, he also adjusted his posture slightly and sat up straighter. ?This means something like "I''m going to get real.jpg". Following Chang Haonans actions, dozens of people in the room became serious. In fact, under normal circumstances, the operating temperature of low-pressure turbines is relatively low, and the demand for heat dissipation is not stringent... However, the situation of the low-pressure turbine Trent 900 is quite special. ?This time, he no longer gestured directly in the air, but turned on the laptop and projector next to him. A design drawing marked with many data was quickly displayed on the screen. But it is not the blade part that is the top priority. Rather than a turbine disk. Or strictly speaking, it is the part where the turbine disc and turbine shaft are connected. In the case of the low-pressure turbine, the difficulty is on the one hand the material issue I just mentioned. We have never done it before and are not familiar with it. On the other hand, the design of this turbine is rather... strange. ?Chang Haonan thought about the words for a long time, and finally found a more euphemistic way of saying it. "It may be because the three-rotor structure itself has made the rotating shaft part very complicated, or it may be for other reasons. In short, Rolls-Royce did not provide an anti-overrotation design for the Trent 900 in the low-pressure turbine part... and although there is not enough information, But I doubt they even have one on the medium-pressure turbine side..." "Normally, this will not have any impact, but once a fault occurs and the turbine shaft breaks, the medium-pressure and low-pressure turbines that have lost their load will rise sharply in speed driven by the airflow, until the blades cannot withstand the huge centrifugal force. Being thrown out of the engine..." ?Chang Haonan, as an aviation designer, inevitably has some occupational diseases. In short, it looks awkward no matter how you look at it. ?The key is that he does not have complete technical information on the Trent 900 and does not know how Rolls-Royce plans to solve this hidden danger. Or are they really confident that their engines will not have shaft breakage problems? Speaking of this, Mr. Chang. ?Ren Bingda suddenly interrupted: When I was in contact with Ciro Company before, I heard Mr. George Breen mention it accidentally. He said that the companies responsible for the production of Trent 900 engine turbine shafts and turbine accessories are Ishikawajima Harima Heavy Industries and Kawasaki Heavy Industries Ahem ?Chang Haonan almost lost his temper. I want to laugh, but I dont think its appropriate. As a result, I choked on my saliva... In fact, IHI and Kawasaki themselves were not involved in the quality crisis among Japanese companies that year. ?However, after experiencing such an incident, Rolls-Royce still dared to choose them as a supplier. I can only say... Courage is commendable. "Forget it, let''s do our own thing first..." ?Chang Haonan stopped his smile and waved his hand towards Ren Bingda: "In short, what is relevant to us is that the density of air film holes in the part where the turbine disc and turbine shaft are connected is larger than that of ordinary models, and the requirements for stress control and defect control during the processing are also higher... " Chang Haonan spent about three hours briefly introducing his R&D plan and the specific directions that each group is responsible for. I have to say that this is a challenge even for him. Its mainly a matter of construction period On the surface, Luo Luo is not in a hurry this time. They even specifically requested that the contract signing date be written to December 2002. The sample delivery must not be earlier than signing the contract, so it was pushed to before April 2003. This works out to nearly 8 months. The schedule seems to be very generous. But Chang Haonan knew that an unexpected incident was likely to occur in early 2003, which would affect the work progress throughout the first half of next year. If you exclude this part, there are only four months left. Excluding the fact that Perelman could not be contacted for a while, the International Congress of Mathematicians was postponed to the end of the year... Only three and a half months left... You still have to race against time. After assigning tasks, the seminar came to an end. ?Everyone goes back to rest for a night, and then officially starts work the next day. Chang Haonan, however, stopped Ren Bingda alone who was about to leave: Old Ren, wait a minute. The latter had just raised his **** halfway and sat back on the chair: Mr. Chang, you said. Chang Haonan reached out and tapped on the high-temperature titanium alloy material in front of him, and said in a deep voice: You are a local, so you should be familiar with the situation at Hao Jiaotong University and Hao University of Technology. "After I go back, think about it and see if there are any scholars who are relatively reliable and have decent level of skills in metal materials research. When the time comes, we will bring them. Of course, I will also find some comrades who meet the requirements from the 621 Institute and bring them to us. Come to the project team. ?Ren Bingda did not reply, just showed an "I understand" smile, and then nodded. ?According to the contract signed between Xiluo Company and Haofa Group, Party B shall not hand over technical information about Trent 900 to any third party agency or unit without Party A. ?Of course, this is just a sentence that must be added to the contract template. The actual situation is that Luo Luo knows that Haofa Group will definitely use the information for reference. ??Haofa Group also knows that Luo Luo knows that he will use the information for reference... ?But this kind of thing is something that everyone knows very well. Still cant make it too ugly. So Chang Haonan is not prepared to blatantly violate the regulations It is okay not to hand over the information to a third party. But I invite people from a third party to join our project team, and you have no control over this... (End of this chapter) Chapter 1030 Im torn Chapter 1030 I am torn apart At this time in August 2002, the Turbofan 10 had been finalized, and the Turbofan 20 project had not yet been officially approved. It happened to be in the gap between the two major models. For the current aviation power group, the task at hand of Chang Haonan is the first priority. Even among the entire Science and Technology Committee sequence, its importance is at the forefront. So his request naturally received a quick response from his superiors and fraternal units. Especially 621. Even though the 621 Research Institute was retained under the jurisdiction of the Aviation Industry Corporation of China during the split that year, a research and development team was organized to rush to Haojing in the shortest possible time. Even arrived earlier than professors from two local universities... Chang Haonan did not make too much fuss, and directly received a group of technical staff from the other party in the archives dedicated to the project team. Sure enough, the effect is outstanding. When the leader saw a filing cabinet full of information in front of him, he was so shocked that he even dropped the briefcase in his hand. I stared at the door for a long time before I noticed Chang Haonan sitting not far away. For a while, the atmosphere around me was a little awkward What should I do if the leader is ignored on the first day of reporting? Waiting online, very urgent.jpg In the end, Chang Haonan stood up and half-jokingly took two steps forward: I heard before that researcher Hang Zhibin could forget his wife when he fell in love with research materials. When we met today, he really lived up to his reputation..." ??The people following Hang Zhibin also let out a burst of good-natured laughter in cooperation, finally making the scene lively again. Hello, Mr. Chang. ?Hang Zhibin quickly shook hands with Chang Haonan, and then said: "Originally, after hearing about your situation two days ago, my mentor Cao Xiaochun, Academician Cao, was planning to come over in person. However, because he suddenly felt unwell, he had to temporarily let me lead the team. I hope Mr. Chang can give me more advice... " ? Cao Xiaochun, a leader specializing in titanium alloy materials at the 621 Institute, has presided over the research and development of a series of titanium-aluminum alloy materials and processing techniques, including TC2, TC4, and TC11. Due to this outstanding contribution, he was elected as an academician of the Chinese Academy of Sciences in 1997. To a certain extent, the reason why Chang Haonan was able to quickly apply his knowledge to the field of aviation design after his rebirth in 1996 without encountering particularly great resistance in materials was because he had received a lot of scientific research from Academician Cao Xiaochun. dividend. Hypertemperature-resistant titanium alloys that can withstand working temperatures of 550C or even higher are its current focus. ?Of course, although it is said that it is tackling key problems, it is actually just entering the exploratory stage. Huaxia has indeed developed several titanium alloy materials used in aerospace engines in the past. But those are used for fans and compressors, that is, cold-end components. ??It is completely different from Rolls-Royce, who directly went to the turbine. ?Now Chang Haonan suddenly got thousands of pieces of information, and the information was also certified by Luo Luo. Of course, the 621 institute hopes to see it as soon as possible. Any advice... we cant talk about it yet. ?Chang Haonan motioned to the people at the door to sit down around a small table: "I came to you this time mainly because I need your support in the research and development of titanium alloy materials. After all, Haofa... In fact, including myself, I have never systematically studied titanium alloy materials in the past. I only relied on the British These things given to me are sometimes not enough..." After all, China did not directly introduce a full set of technologies, so it is naturally impossible for Rolls-Royce to really provide complete information It is still difficult to process semi-finished products, let alone reverse-engineer high-temperature titanium alloys with the same or equivalent technology. At least its not just a matter of following the information. Where Our research team has been paying attention to the direction of computational materials science proposed by Mr. Chang before. There are still many details that we would like to take this opportunity to confirm with you Actually, titanium alloy materials should be divided into two directions. Some people are responsible for developing the laser processing process, while others are responsible for researching the materials themselves. However, in the early stages of research, what needs to be done on both sides is exactly the same. To represent. Although the information provided by the British side already includes the microscopic morphology and metallographic structure, this process is still indispensable after it is in China''s own hands. Because the representation object is not just the semi-finished product itself to be processed. There are also materials that have been processed by different processes, especially laser processing with different wavelengths and pulse widths. From a performance perspective, they can only be regarded as waste products produced during process development. But for materials science, especially the computational materials science that Chang Haonan is studying, the waste itself is also valuable. ?Of course, the test does not require Chang Haonan to do it himself. However, the construction of material type spectra and related databases, as well as the interaction between titanium-aluminum-chromium-niobium-oxygen and other particles, still require his decision-making to build them. The composition of British titanium alloys is not too complicated. ?Ti-47Al-2Cr-2Nb. Abbreviated as 4722. For Chang Haonan, it is considered a classic product of a generation. So much so that when he saw the results for the first time, he was not surprised at all. Because even in the previous life, its improved version 4822 was the first high-temperature resistant titanium alloy put into practical application in the world. It is just used by General Electric on GEnx, which is the 787 engine. As for the material itself, it was developed earlier. It now seems that the main reason why it has not been applied in advance is that it encountered great difficulties in processing. After all, without him, the Trent 900 would most likely have to replace the low-pressure turbine with a nickel-based alloy. Therefore, after the initial preparation stage, Chang Haonan was already ready to overcome the difficulties. But even so, what happened next was somewhat beyond his expectations ?At the earliest, Chang Haonans plan was to use other brands of titanium-aluminum alloys to test algorithms and processes, form a database like nickel-based alloys, and then try to process 4722 materials. After all, the number of semi-finished blades given by the British was limited. Although it is stipulated in the contract, normal use during the trial production process is not included in the processing loss, and Rolls-Royce can also provide new samples later. Not only is international mail delayed, but more importantly, the terms also state that all processing waste must not be disposed of randomly and must be returned to the British side. On the surface, this is not surprising. But it means that if the entire process development process is tested using materials provided by Rolls-Royce, then the other party may be able to infer some useful information from these waste products. ?However, after all, the initiative in this kind of matter still lies with China. Therefore, Chang Haonan thought about using other brands of titanium alloys that can be produced independently for preliminary experiments. It is equivalent to giving the other party only one answer in the end, and the process is a big "omission". ?This kind of lethality should be understood by anyone who has gone to school. However, according to the process parameters fitted through this process, cracks appeared during the first sample test. ???It''s not even the kind of microcracks that require a microscope to see clearly. But macro cracks Mr. Chang, according to the test results, the internal shape of the hole basically meets the standard, but the appearance of the hole wall is very unoptimistic. Lu Qingsong, who was also sent from Institute 606, came to Chang Haonans temporary office with a test report and a sample in his hand: After the probe goes in, you can see very obvious warpage and defects such as burrs. Some of the cracks that spread out from these defects can even penetrate the gap between two adjacent air film holes. part" Let it go first The latter was having trouble holding a photo of the sample in his hand at the moment. When he saw him coming in, he sighed with a headache, and then pointed to the only place on the desk that was not filled with information: Also, let the trial production team pause for a moment. There are obviously some things that we havent noticed and were ignored during the calculation process. "good." ?Lu Qingsong nodded, but did not turn around and leave immediately. As an engineer who has participated in the entire development of ultra-short laser processing technology, he has some ideas of his own: Mr. Chang, our next step is to adjust the calculation process and fitting parameters first? But Chang Haonan shook his head: The deviation in the processing results this time is a bit large. It may be difficult to adjust the process parameters alone. The process flow must be adjusted. At this point, he leaned back in his chair, looking a little hesitant, obviously struggling with something. After a while, he suddenly continued: We need to adjust our strategy... Lets work with Researcher Hang to understand the material forming mechanism and process first! (End of this chapter) Chapter 1031 Laser selective melting molding Chapter 1031 Laser Selective Melting Molding Concentrate your efforts on conquering the material itself first? After hearing Chang Haonans thoughts, Lu Qingsongs first reaction was disbelief: From a research perspective, this is indeed more reasonable, but Mr. Chang, is it too late in terms of time... Performing processing on the basis of already obtained materials is always much less work than developing a new material from scratch... Including the reverse engineering of 4722 alloy according to the original plan, it is also a relatively long-term task. Sudden adjustments to the plan now will have a considerable impact on the entire project. But now, Chang Haonan really has no choice. "no way." He replied somewhat helplessly: "It is true that we are pressed for time, but since the attempt to use other titanium alloy substrates for testing and then push out the results has been proven to be unworkable, if we want to obtain the process parameters in a short time, we can only directly obtain enough 4722 alloy, establish a separate database and fitting formula for this series of materials, and the results will definitely be accurate. " "Now the easiest way to get enough 4722 alloy is to ask Rolls-Royce according to the contract, but I don''t want to return all the processing waste to them, because too much will leak out... so , we can only make two preparations. "On the one hand, we should focus most of our efforts on researching the 4722 alloy material itself. Although we may not be able to make blades exactly the same as Rolls-Royce in a short time, it is best to come up with base materials that meet the requirements, so that our computational modeling can The process can be completed using your own materials, and there is no risk of leakage..." "Of course, on the other hand, the turbine processing task of the Trent 900 itself is definitely still the most important, so we cannot bet all our money on it. If the alloy forming process still does not improve by the end of this year, then we can only choose to ignore the British I want the second batch of follow-up samples..." Hearing this explanation, Lu Qingsong nodded solemnly. The principle of technical blockade is the same. The main purpose is to increase the cost and time for others to catch up. As long as the latecomers technology iteration is not as fast as mine, the entire market will still be in a monopoly state. So, if possible, everyone wants to prolong this process as much as possible. After a slight hesitation, he continued: Then if Siro Company wants to know the progress...you know, its Party A over there, so we cant not disclose even a little bit of information..." Chang Haonans answer was almost without thinking: Lets just say that the process parameters are being adjusted... In addition, the several sets of scrap products processed in this round of testing can also be dismantled and delivered to them in several batches. It should be enough to cope with two or three months..." Just when the two of them were ready to deal with the worst case scenario. A figure appeared at the door of the office at just the right moment... is Hang Zhibin. Mr. Chang, and Gong Lu. Hand holding a folder that was almost the same as the one in front of Chang Haonan, he walked in slowly: We trial-produced a batch of Ti-47Al-2Cr-2Nb based on the process deduced from the data. ?This sentence really shocked Chang Haonan and Lu Qingsong, who were discussing this matter just now. Especially the former. Nearly jumped out of the chair: Has trial production been completed? Bar or profile? Its really not to blame that Chang Haonan was startled. Mainly because less than 20 days have passed since the start of the research. In such a short period of time, even developing a complete process based on existing experience is a bit difficult. Let alone the output material itself. Even with the help of the system, it would not be possible so quickly... Looking at the two people with shocked faces, Hang Zhibin also showed a blank expression for a moment. Immediately realized that the other party might have misunderstood. Hurryly shook his head: How is it possible to have profiles and rods... We just used the aerosolization process we developed in the past to make a batch of metal powder... Hearing his explanation, Chang Haonan breathed a sigh of relief. While he was glad that the scientific principles still existed, he also felt a little regretful. ?Of course, even for powder, 20 days is a very good progress. Hence, he certainly cannot show his regret: "It doesn''t matter. I have read the information provided by Rolls-Royce. The blade blanks are produced using laser selective melting and molding technology." "With metal powder, at least there is a basis for further research on the molding process... In addition, I Helu Gongzhi is also considering adjusting the R&D plan and concentrating our efforts with you to tackle base material production technology. " ?This laser selective melting molding process is a type of 3D printing. It is not really a new technology. It has been used in a small amount since the late 1990s. Its just that at the beginning of the 21st century, it was not possible to directly produce finished products from powder as was done later. At first, a rough blank is almost produced, and then the subsequent precision processing is carried out through traditional processing methods. ?Although Hang Zhibin still doesnt know what happened specifically, for him, it will definitely not be a bad thing to have such two big guys joining. ?So he nodded happily. Then, he also reported another progress quite excitedly: Actually, after the powder was produced, we also conducted two rounds of powder spreading and molding tests...but the results were not very good, so they were not included in this report. But since Mr. Chang, you are going to take charge of this personally Hearing this, Chang Haonan''s eyes lit up again. He didnt even wait for the other party to finish speaking, and said hurriedly: Tell me more specifically! "Well...it''s trial production, so what we make are 10mm cubic samples, but only the upper and lower surfaces of the samples are relatively flat. Obvious warping, burrs and unfused defects can be observed on the side walls, especially the side edges. Then From these shortcomings..." Since he didnt bring the sample test report, Hang Zhibin could only organize the words and describe them at the same time, so it was inevitable that he was a little stuck. ?However, what he said was quite familiar to Chang Haonan. So much so that he interrupted the other party in the middle: You want to say that the defects at these side edges are the source points, resulting in many macroscopic cracks that can be clearly observed by the naked eye? ?Hang Zhibin nodded immediately: "right" What I realized immediately was: Wait a minute...Mr. Chang, how do you know? "well" Chang Haonan sighed: Because I also encountered almost the same problem here. Speaking, he handed the test report that Lu Qingsong just brought to Hang Zhibin on the table: Take a look, there are pictures on it, does it follow you... ?Chang Haonan''s voice stopped abruptly halfway through. Because at this moment, an idea flashed through his mind quickly, triggering a series of sparks of inspiration. ?Laser selective melting and molding properly utilizes the thermal effect of laser. The ultra-short laser processing on his side is to reduce the thermal effect as much as possible. But now the same problem has arisen on both sides... As we all know, the direct cause of cracks is basically that the residual stress is greater than the tensile strength of the material itself. ??And the current picosecond laser is actually not enough to avoid all thermal effects. To solve this problem, when Chang Haonan originally developed ultra-short laser processing equipment, he immersed the workpiece to be processed in liquid. If you have to say where the two processes of molding and processing are similar, it would probably be this process. Its not that the cooling methods are the same It is of course impossible to fill liquid during the powder molding process. But the higher temperature difference makes its heat transfer efficiency close to that of liquid cooling. That is, the cooling rate is close to In other words, the stress itself is likely to be generated as the material cools. Furthermore, the boundary between the unmelted powder and the molten powder will form a gap, which increases the surface degree of freedom. Therefore, cracks are more likely to occur on the side of the sample. In contrast, since the upper surface is composed of the last molten pool, the surface quality is better and is less likely to become a source of cracks. This can explain why the upper surface of Hang Zhibins cubic sample is relatively smooth, while the side edges are in the worst condition. Researcher Hang After a long time, Chang Haonan slowly said: I seem to have thought of a solution. (End of this chapter) Chapter 1032 Luoluos clever plan to calm the world Chapter 1032 A clever plan to calm the world... ??If the cause is really a cooling rate problem, then for Chang Haonan''s processing tasks, he only needs to increase the liquid preheating temperature and lower the cooling rate. ?Of course, this is just a principle level. In the specific implementation, considering that the thermal conductivity of the originally used neutral salt solution is not small, and if the preheating temperature is high, there will be evaporation or even boiling problems, there are still some areas that need to be overcome. Applying another set of pressurizing equipment for this purpose will further increase the complexity of the system. But if I change the type of liquid, I cant seem to think of one that particularly meets the requirements. As for material forming, it is more complicated. For traditional metallurgical processes, a special stress relief annealing process can be set up. But laser selective melting, as a powder molding process, is actually cooled while processing. In other words, even for a 10mm cubic specimen, the cracks that should be formed have already formed before the entire molding process is completed. So, it is definitely too late to anneal afterwards. Only real-time post-processing can be considered. That is to say, annealing while processing. Fortunately, annealing is essentially a process of slow heating and then slow cooling. Theoretically, another annealing laser can be set up to follow the processing laser to complete this operation. If we want to think of other solutions, it is a matter of metallography. According to the previous material characterization and the calculation results of Chang Haonan, the eutectoid reaction + is very sensitive to the cooling rate. Therefore, more 2 phases with a close-packed hexagonal lattice structure will be formed inside the matrix, and this structure will slip. There is less 2 phase and it is a typical brittle phase. Therefore, the tensile strength of the area containing more 2 phase is lower. When the residual stress is large, it is more likely to become the initiation and expansion area of ??cracks. In other words, reducing the proportion of 2 brittle phase can inhibit the occurrence of cracks. ?However, the process of melting and molding itself will affect the phase composition of the final product, so it will not be much simpler than the idea of ??annealing while processing... In short, there is no way to solve the problem by just doing it. But at least, the research direction can be determined. ?After sorting out his thoughts in his mind, Chang Haonan quickly tidied up the table, and then briefly described his thoughts to the other two. Then there was a long silence... In the end, it was Lu Qingsong who spoke first: "Although there is no evidence...but at least the speculation is reasonable." ?Hang Zhibin also said immediately: "We can specially produce a batch of samples with molding progress ranging from 20% to 90%, and then use them for scanning electron microscopy inspection and X-ray diffraction analysis, so that we can quickly judge the two intermediate speculations of Mr. Chang. That is to say, cracks are generated at the same time during the molding process, and the content of the 2 brittle phase will affect whether the difficulty of crack generation is correct. " If these two contents are correct, then although it is not particularly rigorous, it can be basically considered that the crack generation mechanism mentioned by Mr. Chang before is no problem. There is no problem with the mechanism, then there will be no problem with the subsequent solution. Therefore, the three people quickly reached an agreement on the matter. The next step Just when Chang Haonan was about to formally arrange the follow-up work, Hang Zhibin suddenly changed the topic: Wait, theres something else ?Chang Haonan and Lu Qingsong turned to him at the same time. This process requires multiple comparisons with the samples provided by the British side, and we originally had to conduct comparative tests on the machining properties of the materials later ?Hang Zhibin explained: "So, we need more samples, I mean... the semi-finished products samples provided by the British side." ?Hearing this request, Lu Qingsong was a little hesitant. But now the quantity is not enough However, Chang Haonan agreed readily: "It doesn''t matter, just ask Luo Luo for the second batch of samples." "ah?" ?Lu Qingsong looked at Chang Haonan with a confused expression. The latter replied nonchalantly: The contract does not stipulate the specific use of these samples, it just requires us to return them after testing. We dont want to use it because we are worried about leaking secrets, but researcher Hangs test is to reverse engineer them, and there are no secrets to leak... ??The confusion on Lu Qingsongs face suddenly turned into realization Still imprisoned by the fixed mindset... Soon, Rolls-Royce received a request for a second batch of processing samples. ?Furthermore, according to the contract, the first batch of consumed samples was also returned to Ciro Company at the same time. The latter brought it to the UK as a human express delivery as quickly as possible The low-pressure turbine assembly is smaller and the number of samples itself is also limited, so there is no need to bring a cargo box like last time. The person responsible for this human flesh delivery was Adam Whittle, one of the two British representatives of Ciro Company. As soon as he got off the plane, he was taken directly to the Rolls-Royce headquarters in Derbyshire. ?Including Lapworth, Bodie, and the head of the process team, Nate McGill, almost one-third of the supervisory leaders of the Trent 900 project team are already waiting here. ?This attitude directly surprised and delighted Whittle, who had been away from Luo Luo''s inner circle for many years. Is this the waste product produced by the Chinese people during process testing? Lapworth carefully pulled out a leaf parison from the sample bag, frowned, and asked. ??Though she was speaking to Whittle, the latter was clearly not high on the priority list for answering the question. McGill, who was sitting next to him, leaned over to take a look, and then gave a direct answer in the affirmative: Thats right, we put special markings on the blade root and blade tip before shipping. This has obviously not been dropped. "no" Lapworth raised his forehead helplessly: I meanthe nickel-based alloy blades they came out with last time were perfect, but what about this one ??As she spoke, she turned the direction of the blade and showed it to several other people around her. ?Then, there was a sound of inhaling in the conference room The entire upper surface is almost covered with fine cracks visible to the naked eye. Even without any testing equipment, you will know that it is absolutely a waste product. It is almost the same as the samples in the previous trial production process. If you ask me, this is normal. ?McGill is responsible for process research and development and has a fairly clear understanding of the difficulty of this process: The processing characteristics of titanium alloys and nickel alloys are inherently different. They obviously have no experience in this area in the past, so they can only explore from scratch..." Having said this, he took the leaf in his hand, looked at it for a while and then showed a smile: And, only in this way can we fully understand the research and development process of the Chinese people, and thus deduce the specific process routes they use, and even... process parameters. Bodi, who had been silent just now, frowned: Dont rely too much on these, McGill. You know, the results obtained by such backward deduction may not be completely correct sometimes... and may even interfere with the normal research and development process. In fact, he was not very supportive of reverse engineering at the beginning, but McGill convinced the director of the Trent 900 project, who was also the direct superior of all of them, to turn his suggestion into a decision. After hearing this, the latter returned the leaf in his hand to Lapworth, wiped the unknown liquid on his hand and said: "So...I divided my staff into two groups. One group is responsible for cooperating with Oxford Optical Instruments and continuing forward development, and the other group is working with me to try to see if they can find anything useful from the Chinese test samples. thing." "Judging from the current situation, the Chinese people...are not aware of our methods..." (End of this chapter) Chapter 1033 The power of computational materials science Chapter 1033 The power of computational materials science ?Just when everyone at Rolls-Royce was wondering how to reversely deduce the technology used by China based on trial production samples. Haofa Group has also produced results on the characterization analysis of the crack morphology and formation causes of titanium-aluminum alloy cubic specimens... Mr. Chang, these are the XRD patterns and EBSD phase diagrams of samples with different degrees of completion from 20% to 90%. ?Hang Zhibin hurriedly rushed into Chang Haonan''s office and put several pages of test reports that were still steaming on the paper directly into the latter''s hands. Before Chang Haonan could take action, he turned directly to one of the pages: "You see, on the section where the fracture has occurred, that is, point 1 and point 2, the atomic percentage of titanium and aluminum is close to 2:1, and the presence of chromium and niobium is small, indicating that the phase, B2 Both phase and 2 phase are present, and the proportions are relatively balanced. "In the part of the matrix that is far away from the crack, that is, at points 3 and 4, the ratio of titanium and aluminum atoms decreases to 1:1. In addition, the content of chromium and niobium also increases accordingly, indicating that at this time The proportion of 2 phase and B2 components increased significantly, while the phase decreased accordingly..." ? ? If we were to leave it alone, if we were "surprised" like this and then immediately instilled a lot of representational results, we would have to wait for a while before we could hear it. Fortunately, Chang Haonan was already thinking about this matter in his mind at the moment, and his own ability to read pictures was first-rate, so he was able to keep up with the other party''s thinking. After Hang Zhibin finished a long paragraph, he directly went to the final conclusion: So it can be proved that during the process of crack formation, the eutectoid reaction of + occurs simultaneously at the cracking position! Thats right! ?Hang Zhibin nodded quickly: It is completely consistent with your previous speculation. As long as the proportion of 2 brittle phase in the alloy can be reduced, the tensile strength within the material can be increased and the stress generation can be reduced at the same time. Our current plan is to preheat the substrate during the molding process. On the one hand, it suppresses the peritectic reaction and reduces the generation of 2 phase. On the other hand, it can also control the cooling rate to a certain extent. Compared with his excitement, Chang Haonan''s reaction was quite dull. A few days ago, he had actually improved the formation of cracks by increasing the temperature of the immersion liquid during the drilling process. So, this result can be regarded as adding a layer of theoretical insurance at most, and it will not surprise him. Substrate preheating is only one aspect. In addition to cracks caused by cooling too fast, 4722 has another problem during processing. Chang Haonan stood up as he spoke, picked up the thermos from the small table next to him, poured two glasses of water into each, and then handed one of them to Hang Zhibin in front of him: "You have just conducted EBSD and micromorphology observations, and you should be able to find that during the titanium-aluminum alloy forming process, because the local temperature of the molten pool will be higher than the evaporation point of aluminum, part of the gas containing aluminum will evaporate and be lost, and Those gases that dont have time to evaporate will form small holes when they solidify. "Large residual stresses will accumulate near these holes. Although the distribution is not as extensive as the stress caused by cooling, it will also induce cracks around it, and since this kind of hot crack does not produce secondary cracks during the expansion process, the main crack will The development will be more obvious. Am I right? Ah...ah? ?Hang Zhibin had just raised his hand in the air, but when he heard Chang Haonan''s analysis, his whole body froze in place as if he had been hit by a thunderbolt. Because this is exactly what he wants to tell Chang Haonan next. This is also the most important finding in the report just now. result ?The other party knew it in advance without even looking at it? About half a minute later, Hang Zhibin reacted and quickly took the cup into his hand: This...is this also what you speculated on? Be aware that this problem is unique to the thermoforming process. ?The cold working process cannot reach the melting point of titanium alloy at all, and it is impossible to even observe the phenomenon. How is it possible ?Chang Haonan smiled and waved his hand. "oh" Hearing that Chang Haonan''s explanation was the same as what he had just thought, Hang Zhibin finally breathed a sigh of relief and waited for further explanation. ??But before he could take his next breath, Chang Haonan continued: This is what I calculated. ????? ?Hang Zhibin held the cup and didn''t know how to respond for a while. I wanted to lower my head and drink water as a strategy to delay, but I forgot that the water was just poured from the thermos bottle... Fortunately, Chang Haonan was standing in front of the window with his back to him at the moment. He didn''t notice that the other party almost burned his tongue. He just continued to introduce his conclusion: "Through molecular dynamics research results, at higher temperatures, the expansion rate of aluminum oxide is much slower than that of titanium oxide with similar thermodynamic stability. As a result, titanium alloys containing aluminum cannot rely on oxidation like aluminum alloys containing titanium. The aluminum film is used to protect itself, and the chromium and niobium in the 4722 alloy are added as antioxidant elements. " But these two elements exist in the form of solid solution in the matrix alloy, thus affecting the formation mode of alumina, which determines that during the process of heating-oxidation-melting, aluminum will be more easily lost in the form of gas..." When he heard this, Hang Zhibin had already put the cup aside, took out a pen and paper and started recording When he first met Chang Haonan, he once said that he had studied some computational materials science. This was not a compliment. ?Although I didnt actually study it very well at the time, one thing is very certain. Traditional materials science is based on analyzing the causes of phenomena and then working backwards to summarize the rules and then generate theories. The research process of computational materials science is the opposite of this. First come up with the theory, then deduce the laws, and finally get the phenomena. In other words, although the scope of application of this subject is currently relatively narrow, as long as the application is successful, it means that the problem has been discovered and a solution to the problem has been found. Just like it is now. We will further adjust the forming parameters of selective laser melting to minimize local temperature spikes, which may cause aluminum to evaporate. ?Hang Zhibin wrote the last few words in his notebook while responding. Then, retract the pen tip with a click. Adjusting parameters is only a temporary measure. ?Chang Haonan sat back on his chair and said: "In the long run, as I just said, chromium and niobium are added to improve the oxidation resistance of titanium alloys, but even if the temperature is controlled perfectly during the molding process, it will cause aluminum to concentrate on the upper surface of the final molding, and The content of other parts is reduced, which in turn has an adverse effect on antioxidant properties. I dont care what kind of coating the British are going to use to solve this problem, but on the one hand we are completely missing this part of the information. On the other hand, even if there is a coating, it is not a bad thing to increase the antioxidant capacity of the substrate itself. ?Hang Zhibin thought for a while: So, you want to improve on the British material? ??If there were anyone else sitting in front of him except Chang Haonan...and Academician Cao Xiaochun, he would probably have dropped his pen on the table - Material science is not just about changing the element composition or the ratio. At present, they are not even sure about the process parameters of 4722, and they even need to complete the remaining parts through a lot of experiments. In this case, just thinking about improving materials is almost equivalent to trying to run a marathon without even learning to crawl. Its completely whimsical. Not only does it fail to achieve the purpose of improving performance, but it may even fail to achieve the performance that others had before improvements due to insufficient understanding of the original material. There is a high probability that what you get is pure waste. ?However, considering Chang Haonan''s actual situation, Hang Zhibin clicked again and pressed the pen tip out. Exactly. Chang Haonan knocked on the table with excitement: "I randomly tried using several rare earth elements, and accidentally discovered that replacing a certain amount of chromium and niobium with trace amounts of ytterbium and cerium can refine the grains, purify the matrix, and improve the adhesion of the oxide film. " In addition, due to different solid solution conditions, these two elements, especially ytterbium, can also promote the selective oxidation of Al, thereby reducing the difficulty of local temperature control in industrial production. As he spoke, he took out the calculation results that had just been sent a few hours ago from the file box and handed them to Hang Zhibin: Of course, Im just providing an idea. You still have to do the specific experimental things, so this is the next research direction. As for now...in order to restore the British 4722, you really still have to dig into the process parameters of laser selective melting. I am in a hurry..." (End of this chapter) Chapter 1034 The British four-stage problem-solving strategy Chapter 1034 The Britishs four-stage strategy for solving problems After determining the specific direction to solve the problem, Hang Zhibin and others quickly got back to work. About a month later, they finally succeeded in producing a bulk 4722 titanium aluminum alloy substrate that met the requirements. Although there is still a big gap between the upper limit of volume, product density and molding accuracy compared with the same material from the British, Chang Haonan did not really want to directly use these domestic substrates to produce blades. If it is just used as a basic consumable in the process development process, the requirements are actually not that high. Therefore, when the second batch of blades supplied by Rolls-Royce arrived, he had almost completed the development of the basic database and process parameter calculation method for 4722 alloy. The next task is basically the same as when dealing with nickel-based alloys. ?Of course, in order to meet higher production standards, the requirements for the precision of the processing parameters of the low-pressure turbine disk will also be higher. It will inevitably take longer to determine. But no matter what, the most difficult level is over. As for the high-pressure turbine part that was assigned to Zhang Zhenhua from the beginning, the development process was even more uneventful. There were some minor twists and turns during the process, which were basically due to the lack of experience of a few key members. It wasn''t even Chang Haonan''s turn to intervene directly, but it was solved directly in several technical seminars. In the end, it brought about a happy trouble - Due to the requirements of Rolls-Royce headquarters, the subcontract signed between Haofa Group and Ciro Company was dated at the end of the year. However, it is not yet November, and the former has already produced a product that has been fully qualified after testing... So that it cannot be delivered at all. ?On the other hand, the ultra-short laser processing equipment provided to Haofa Group is still in the process of debugging. Even if mass production is really going to happen, it will still take a few months. According to general principles, if Party A does not sign and mass production does not start, then the project team must be maintained and cannot be disbanded. Chang Haonan does have other things to be responsible for. For example, the Air Police 2000 has already started to be modified at Haofei, not far away. He needs to install his own Air Force data link system for future testing. But other people in the R&D team must not be able to run around casually. Especially Hang Zhibin and his party who came from 621. Out of concern about the situation early next year, Chang Haonan doesnt want them to return to Beijing at this juncture. So, it is always necessary to find other related things to do. So, at the last seminar in October, which was most likely the last seminar before samples were delivered, everyone began to brainstorm on this matter. In fact, considering the time at the end of 2002, and the fact that the Trent 900 is the world''s top high-bypass ratio turbofan engine, the first thing that almost everyone thinks of is the Turbofan 20. According to the plan, Haofa officially started mass production of Rolls-Royce orders, and after the successful first flight of SeA650, it was time to start the Turbofan 20 project based on the experience accumulated from these two projects. ??The approach is still to concentrate on attacking fortified areas, with Haofa as the main force, supplemented by several brother units such as Shengjing, Rongcheng and Zhucheng. It just wont be as big as the Turbofan 10 back then. Therefore, Hang Zhibin and others immediately stated that the improved titanium-aluminum alloy they were developing could be used as a pre-research project for the Turbofan 20, and they would consider using the rear 2-3 low-pressure turbines of the Turbofan 20 as well as the first two-stage high-pressure compressors. Material replaced with titanium alloy. Referring to the situation of Trent 900, it can probably bring about a weight loss of about 160-200 kilograms. You must know that an engine with a thrust volume of 13-15 tons, such as the Turbofan 20, has a dead weight of only about 3 tons. It is equivalent to a one-time reduction of about 1.5%. As long as the overall engine design is not changed, it is already a very impressive number. Even Chang Haonan is inevitably a little tempted. ?However, he eventually gave up on this slightly radical proposal. After all, the low-pressure turbine and high-pressure compressor are both components of the core machine. Once they change, it will be a big move. The core machine of the Turbofan 20, which relies on the Turbofan 10, is supposed to have a short R&D cycle and focus on training the R&D team. And a model that doesnt carry too much risk. Even the Y-9 transport aircraft that is expected to be equipped with turbofan 20 has entered the structural strength verification stage and will soon start wind tunnel testing. There is really not much room for trial and error. The new titanium alloy is still at the stage where it has just been dipped in ink. It may take some time to truly complete the research and development and improve the molding process to a level sufficient to produce turbine blades. This does not include the fact that due to the different surface properties of different materials, the heat-resistant and anti-oxidation coatings originally used for nickel-based alloys have poor adhesion on titanium alloys. Therefore, new coating systems need to be developed, as well as domestic heat-resistant coatings for titanium alloys. Traditional processing methods such as pressure rolling, casting, and forging are also not researched enough... In short, if you want to open a new branch line in the manufacturing industry, it cannot be solved by a few units in three or two years. Including several other ideas related to Turbofan 20, they were all rejected for similar reasons. In the end, Chang Haonan even thought about how to directly carry out the preliminary research and development of the Turbofan 20 in the name of the current "Trent 900 Turbine Production Project Team". Anyway, he has done similar things before. The only problem is that this project team uses British funds after all, and it may not be easy to do the accounting later... Fortunately at this time, Ren Bingda, who had been silent just now, suddenly spoke: Mr. Chang, I remember when we first received the technical information from the British, you seemed to have said that the Trent 900 had certain design flaws? ?This sudden change of topic made Chang Haonan a little stunned: Not entirely, right... After hesitating for a moment, he gave an uncertain answer: It does not have an anti-overrotation design on the turbine structure, but I havent seen the complete design of the Trent 900, so Im not sure if there are other alternatives "Then... do we need to tell Luoluo about this and then make an improvement plan based on this?" ?Ren Bingda asked: On the one hand, it is to train for the Turbofan 20, and on the other hand... it is also to prevent the Trent 900 from having an accident in the future and putting the blame on the turbine blades we produce. ?Chang Haonan immediately made a tactical retreat. When he first heard the first half of the other person''s question, he was almost ready to refuse without thinking. ??Rolls-Royce is not a brother unit under the same group. It is just a business cooperation. The main theme is to give up helping others and respect the fate of others. Just do what is stipulated in the contract and thats it. But Ren Bingdas explanation later made Chang Haonan have to think carefully. ?Given the British and Japanese people''s urinary habits, if something really happens, at least until the investigation results come out, there will be a lot of back-and-forth. And the investigation of aviation accidents... takes a long time. ??As a new player that has just entered the aviation manufacturing industry, China has to guard against... ?But then again, if Luo Luo solves the problem like this, on the one hand it will be a bit of a loss, and on the other hand it may not be a good outcome. As the saying goes, a good doctor does not have a brilliant name. Some defects will not be taken seriously until they actually cause problems. Speak up in advance, others may think you are looking for trouble. "you''re right." Chang Haonan nodded: However, the improvement plan has to be done, and after it is completed, it should be left in our own hands. As for design defects... we dont need to mention them specifically. We can wait until the samples are delivered later and attach a risk warning statement to the production documentation. "It would be great if the British paid enough attention to this matter. Whether they come to us for a solution or they handle it themselves, we play an important role in it. Even if this matter is used for publicity in the future, no one will pick it. Nothing wrong. "If they didn''t pay attention, they would have left it in writing anyway. If something happens in the future, just turn over the documents signed by both parties and leave the rest of the matter to the Japanese and British to argue..." As soon as he finished speaking, Ren Bingda immediately heard the underlying meaning: Do you think the British might not pay attention to this issue? ?This guess was completely beyond the expectations of most people. Its not that bad The muscles on Zhang Zhenhuas face twitched a few times, obviously very surprised: Rolls-Royce is, after all, an old aviation company... There should be some bottom line when it comes to safety. ?Several people around him also expressed similar attitudes: Its okay to say it was an oversight, but if we have pointed it out, it should be corrected anyway Yes, I think so too But Ren Bingda, who had dealt with the British the most, shook his head and insisted on his opinion: No, you dont understand the British Finally, everyone turned their attention to Chang Haonan again. ?Faced with this question, the latter was a little hard to answer for the moment Actually, there was another reason why he made the above decision. ??That is, if the Trent 900 really has problems because of this defect, it will be a good thing for China... Due to the existence of that risk warning statement, the whole world will soon know that a Haofa Group from China has issued a warning long ago. Comparing the two, it is simply free advertising. You must know that for an industry giant like Rolls-Royce, the opportunity to make mistakes is not always available... But this kind of thing is definitely not suitable to be said in public. So, he organized his language and decided to end the topic with a classic joke: The British generally divide this into four steps to deal with this problem. The first stage, claiming that nothing happened; The second stage, saying something might happen, but no action should be taken; Stage 3 means maybe its time to take action, but theres nothing we can do; Stage 4: Acknowledging that maybe something could have been done, but now it was too late (End of this chapter) Chapter 1035 Yes, we have already studied it Chapter 1035 Yes, we have already studied it The next month or so was uneventful. ??The project team originally responsible for researching the production of the Trent 900 turbine air film hole was finally pulled to learn the design experience of large bypass ratio engines in advance to prepare for the upcoming turbofan 20 project. Chang Haonan himself, because he had to take care of the installation and debugging of ultra-short laser processing equipment, did not return directly to the capital. Instead, he went to Haofei Group to start preparing the relevant hardware of the data link system for Air Police 2000. Haojing is a good place. That is, you can find almost all industries related to aviation manufacturing locally. ?From component production to flight testing, everything - Thanks to this, although the Air Police 2000 has just started to be renovated and cannot fly into the sky, Chang Haonan still used his influence to find a J-11BS and a J-10AS prototype that were undergoing test flights, and used advection to The airship completed basic air relay communication testing. As for Rolls-Royce Although it is Party A, it is still separated from the Haofa Group by one layer after all. In addition, it has to be kept hidden from the higher ups, and it is not easy to travel to China every now and then. The only way to know the progress of the project is based on the occasional written reports from the Xiro Group. . However, as we all know, the accuracy and timeliness of written reports... Not very optimistic. In short, from the British perspective, China should still be in the midst of an arduous process of process development. After all, the latter never mentioned the third batch after taking away the second batch of semi-finished raw materials. So it is reasonable to speculate that we may have encountered some technical difficulties and are currently working on them... ?Just like that, time came to the end of 2002 in a flash. December 1st is the day when Haofa Group and Xiro Company officially signed an agreement. Of course, it refers to the date written on the agreement. After this day, it means that Haofa Group can deliver goods in a legitimate manner. Considering that the production of turbine blades is still a bit difficult after all, it is impossible to place an order and deliver it on the same day, so Chang Haonan "kindly" waited an extra week... December 9th. Monday. ?Brin and Whittle had just returned to work after enjoying the weekend vacation. Before they even had time to enter their respective offices, they noticed several figures following them. The leader among them is none other than Ren Bingda. Theoretically, this Silo company has a total of four leaders of the same rank. In addition to the two British, there are also two Chinese. ?Ren Bingda is one of them. He even has a separate office. Its just that it has only been used a few times since the establishment of the company. After all, the nature of Xiluo Company has always been foreign trade...or to put it more bluntly, it mainly imports aircraft engines and parts, so there was no daily business related to China in the past. Therefore, after seeing Ren Bingda, Brin and Whittle almost immediately realized that the other party must be looking for them. "appoint!" "Good morning!" ?Brin took the initiative to take two steps forward and called out to Ren Bingda who had just stepped onto the last step. It was only then that he noticed that the latter was holding a document bag under his arm. Its bulging, obviously it contains a lot of content. Is this...the project progress report from last week? ??Whittle also walked over from a short distance away, stared at the document bag and asked. ??The previous reports they received were all delivered in similar bags. Just the thickness is not as exaggerated as it is today. Progress report ??Ren Bingda held the document bag in his hand, glanced down, and then smiled: In a sense, it is. At this time, Brin was leading a group of people towards his office while still teaching Ren Bingda how to fish: Actually, its enough to submit this thing once a month, and no one at the headquarters will read it In the past few months, although Haofa Group''s reports have been irregular, they have generally been between 1 and 2 weeks. This frequency really amazed the two British people. Its different this time. ?Ren Bingda tilted his head slightly and looked at the three attendants following him. Each of them was carrying a black suitcase of the same style. ??It just looks too much like an ordinary briefcase, so it wasnt noticed just now. This is...a progress report on the entire project. He looked at Brin who was opening the door and added further. The entire project The latters face was originally filled with a relaxed smile. But at this moment, it solidified. "you mean" ?Brin turned around suddenly and looked at Ren Bingda in shock. Even forgot to turn the door handle Yes, our samples are ready for delivery. ?Ren Bingda nodded and replied calmly. Its like saying that you ate egg fried dough sticks and soy milk this morning. For a moment, it seemed as if even the light coming in from the window had stopped. ?Brin looked at Ren Bingda, and then at Whittle, who had the same dull expression next to him. At this time, he finally saw the hard box in the hands of the people behind him, which was obviously one size larger than the briefcase: Have you brought the samples? How is it possible ??Ren Bingda shook his head speechlessly, and directly turned against the guest, helping Brin, who had not yet fully recovered, push open the office door: These are just handover documents. The samples are in our warehouse and you can check them at any time. Of course, all the semi-finished raw materials that were lost during the process of process development are also saved, no less. ?Two British people with numb scalp walked into the office stiffly. If Ren Bingda hadn''t stopped him, Brin even subconsciously wanted to sit on the sofa prepared for visitors. But...its only December 8th? Whittle fared slightly better than his peers, at least remembering the day: Furthermore, in the report two weeks ago, you also said that you were studying the processing parameters of titanium-aluminum alloy at that time, and it is estimated that the entire project will take another 3-4 months to complete? You should know that the two of them have compiled this year''s work report, which does not involve any content about the delivery of samples of turbine parts. To do this, almost the whole thing has to be rewritten. You also said that it was two weeks ago. ??Ren Bingda was minding his own business and sat on the chair opposite his desk: After that report was written, oftenwellwe happened to make some technological breakthroughs. "In short, the research has been completed now. As for production...when the technical parameters have been determined, it is not a problem." Speaking, he turned the file bag around and placed it in front of Brin on the other side. ??Even comes with a pen: Boy, please confirm the content of the report as soon as possible. If there is no problem, please sign it, and then we will prepare the relevant matters for shipping to the UK. We are approaching the end of the year and Christmas, and the transportation capacity is already relatively tight. It is best not to delay it for a moment, otherwise we will have to charge storage fees next year. He said in a slightly joking tone. ?At the same time as the words fell, several people behind him also opened the suitcase, and then arranged the stacks of project description documents inside in order. A table full of people was laid out. Until this time, Brin and Whittle finally woke up from their dreams. They did not bother to think about what the Chinese people had done in the past half month. Instead, they found the secretary as quickly as possible, and then divided the documents into technical and administrative categories. Two copies, read them separately... (End of this chapter) Chapter 1036 Warning from China Chapter 1036 Warning from China In the information age, news always travels faster than logistics. George Brin and Adam Whittle are just two ruthless rubber stamp tool people. After determining that the documents provided by China had no obvious legal and technical risks, they took the first step to electronically copy them, and the current slightly shocking The project progress was submitted to the UK headquarters. As for sample identification, technical testing, compliance review... Stop making trouble, Ciro Company is just an empty shell with no three-digit employees in total, and most of them are scattered in various airports and warehouses... It is impossible to do this. Therefore, the British side, which is 8 hours different from China time, also received hundreds of materials from Ciro Company on the day of work on December 8. In response to this, Rolls-Royces reaction Quite quickly. The news was received at noon. ?That evening, before all the documents had even been printed out, prominent figures in the Trent 900 R&D team had already flown back from the UK and even various parts of Europe for meetings. The person who was most irritated was obviously the person in charge of the process team, the brilliant man who first proposed using the semi-finished products waste from Chinas research and development process to deduce the specific process of the other party, Nate McGill. Because although he hasnt seen what the finished product looks like yet, his plan has obviously collapsed Last time, about three months ago, the first batch of scrap products sent back by the Chinese were almost covered with various processing defects, such as cracks and remelted layers, which were only the most superficial ones. After further testing, it was found that The metallographic condition of the alloy also changed significantly. It can basically be said that there is no progress at all. ? Even if he took it back and analyzed it for a long time, he could only tell that it was processed with high-energy laser. As for other features, and even specific parameters... Dont even think about it. But at the beginning, McGill even thought this was a good thing. Because his idea is that the Chinese will need the third and fourth batches of raw materials for trial processing. In this way, even if the other party deliberately destroys the goods mechanically before returning them, they can gradually see the process of process improvement. At least you can get some useful information. As a result, once the second batch of raw materials passed, there was no news for three months In fact, it is not quite accurate to say this. After all, China will still submit a progress report with standard format and beautiful writing every one or two weeks. Its a pity that these reports are very British. In other words, it is a huge article but with almost no substantive content. ?Of course, everyone has come all the way from a master''s degree to a Ph.D., and they also know the hidden rules of filling in periodic reports. So gradually, no one took a closer look. Just based on common sense, since the other party has not asked for the third batch of raw materials, it means that the progress may not be very optimistic. However, just when everyone is relaxing and ready to enjoy the Christmas holiday. ??The Chinese just blew up a big one... Until half an hour after the meeting started, McGill was still holding a page from the pile of reports, sitting at the conference table like a wooden man and looking at it On that page, there are multi-angle pictures of production samples printed. ?The edges of the air film holes are smooth and the material surface is bright. Even a little reflection can be seen. There is no trace of the battle-damaged style before. ??If the last time the Chinese delivered the RB211-524B4 sample, the results were directly delivered without a process, then this time at best they wrote an extra solution to show respect for the person who made the question... So for a moment, McGill even wanted to slam the table and angrily scolded the Chinese for deliberately scrapping the first batch of raw materials just to make fun of him. ?But then he recalled that he had vowed before that the other party could not see through this strategy, so he finally held it back... Compared to McGill, whose pale face had turned purple from suppressing his emotions, the others had a calm mind. ? Lapworths biggest hope is that the technology he developed can be used on the Trent 900. At this time, he is only one step away from realizing his dream. It doesnt matter who is specifically responsible for producing these turbine parts. ??Pody felt that this reverse engineering method was unreliable and a bit cheap from the beginning. Although the original intention was not particularly noble, looking at McGill''s embarrassed look now, he could only feel happy. ?As for others, including project director Panos Watson, they originally had the attitude of trying to make the best of things. ??Anyway, if you entrust the production of core components to others, the profits that should be lost and the secrets that should be leaked will be lost, so it is better to support McNair''s plan. What if it succeeds? If you have no expectations, you will naturally not break your defense. but Doing business with Huaxia, especially companies related to Chang Haonan. If the defense is not broken here, it will always be broken elsewhere. Just like now... Director Watson ?Poody suddenly raised his head, and his expression became serious: There is something very important here. ??He said, turning over some pages in his hand so that more people could see them. ??However, the conference table is still a bit wide, and it is really difficult for people on the opposite side to see the dense English letters clearly. ??You can only see the word "warning" written in bold black font at the beginning. ??Having no choice but to ask the secretary to find the electronic version of the manuscript. Actually, at this point, no one thought much about it. I think it is nothing more than some routine annotations made by Party B. ?For example, pay attention to the operating essentials during clamping, installation and disassembly, and how to contact for repair or replacement of new parts in case of damage. However, when the contents of that material were finally projected onto the screen, the contents surprised everyone. ? "Warning about the possible lack of anti-overrotation design of the low-pressure turbine disk". Obviously, this is not the kind of legal or rights clause that is added as a template, but an out-and-out technical document. The content is also very simple. Indicates that during the production process of turbine parts, we found that the Trent 900 engine lacks measures to prevent turbine overload and over-rotation in extreme circumstances. Once the turbine shaft breaks due to an accident or other reasons, more serious consequences may occur, and It is reasonable to speculate that your company may also lack the same type of design in the structure of the medium-pressure turbine. However, considering that we have not obtained the complete design plan of this model, we have no way of knowing whether your company has achieved the same function with other technical means. Therefore, we are just here to make a kind reminder and hope that you will change it if it is, and if not, Jiamian and so on. Even from an English perspective, the content seems a bit pointy. As the person in charge of the entire model, Watson, not surprisingly, became red-hot because of this He has worked at Rolls-Royce for more than 30 years and has designed more three-rotors with his own hands than the Chinese have ever seen on drawings. One of your foundries may indeed have some special technical skills, but it is also honest. Now that I have completed my production orders, how can I guide myself on how to design an aero engine? However, as a British gentleman, Watson would not directly start with an F word. He took several deep breaths in succession, managed to calm down, and then said to Bodie: "You write them a reply and say thank you for the reminder from our partners, but the Trent 900 is different from old aviation engines. Its turbine shaft has been precisely calculated during design and is responsible for the top craftsmanship and quality assurance teams. Production, there will be no breakage problem within the service life and non-external damage factors. "Furthermore, the Airbus A380 that the Trent 900 is installed on is a four-engine aircraft. Even if there is a very small probability that the engine is damaged due to external reasons, as long as one of the four engines can maintain operation, the emergency mode can be activated to maintain The plane will continue flying for at least half an hour..." ?This reply can be considered a tit-for-tat response. Generally speaking, the Trent 900 is different from the low-end gadgets you have come across in the past. Dont think that you will understand our Rolls-Royce design philosophy just because you have learned Spey. The concentric axis of the Trent series itself has a redundant design, so it wont An outrageous failure like a broken axis occurred inexplicably. If it was caused by external factors, then even adding an anti-overrotation design would be useless. Moreover, we also have a powerful mode that can ensure flight safety in the most extreme circumstances. You guys? It''s okay if you don''t know anything, but don''t point fingers at us... ?However, Watson did not write the whole truth. In fact, from a pure risk control perspective, no matter how flawless the design of the shaft itself is, there is no drawback to adding an additional safety redundancy. What really made them get rid of this design was the relatively complex structure of the three-rotor itself. Its not that it cant be designed, but the cost control requirements given above are relatively high. In order to compete with GP7200, performance must be compared with every dollar. The only way is to make some discounts on the redundant design. After all, with the development of aviation technology, this has always been a major trend. Just like in the past, only four-engine aircraft were allowed to fly across the ocean, and later three-engine and twin-engine aircraft were gradually liberalized. Besides, they did not cheat in their calculations and tests. Unless there are external factors, it is indeed impossible for the shaft to break. In short, before the samples were sent to the UK, the two sides had already completed a secret war of words. At this point in time, almost everyone thinks this is just part of the bickering between the leaders of the two sides. However, these two exchanges of documents, many years later, have become a kind of lingering influence that affects the entire world... (End of this chapter) Chapter 1037 Im not interested in money Chapter 1037 Im not interested in money ?After packaging the two sets of high-pressure and low-pressure turbine samples and sending them to the UK, Chang Haonan finally returned to the capital where he had been away for a long time. In fact, the Air Police 2000 project is at the most critical juncture. Liang Shaoxiu has just completed the design of the overall plan, and the modification work of the Tu-214K has also progressed to the critical stage - ?Half of the luggage compartment was converted into a fuel tank, a tail fin and a heightened tail fin were installed. A piece of skin on the back of the aircraft was cut to prepare a bracket for fixing the disc-shaped radome... ?Although Chang Haonan did not directly participate in this project, because the internal equipment installation process also involved data link hardware, he should have stayed in Haojing. But there is no way. The time has come to mid-December. The International Congress of Mathematicians is about to open. According to general rules, this meeting is usually held in the summer, that is, from July to August. However, on this timeline, the 2002 meeting was repeatedly postponed due to various reasons. The most important one is ?The "scheduling" issues of many mathematicians, including Perelman and Chang Haonan. Ordinarily, as the largest and most prestigious conference in the international mathematics community, it should not be postponed due to the absence of individual individuals. But this time there are some exceptions. The main thing is that the work they did two years ago had such a huge impact. It has a great influence not only in the public opinion circle, but also in the mathematics community. It would be fine if Perelman could not be contacted directly like in his previous life, but before the meeting was about to be held on August 20, the staff of the International Mathematical Union (IMU) actually received a reply from him, saying that he could Attend the meeting but will need an additional period of time to prepare the report. Considering his importance, IMU finally passed the decision by one vote to postpone the meeting until the autumn. But for things like a slippery slope, it may be difficult to overcome the psychological barrier for the first time. But after the first time, it became much easier... In autumn, Chang Haonan was in Haojing and couldn''t leave. For the same reason, it was postponed to winter. Finally, boiling frogs in warm water, its like this all the way to the end of the year. IMU and the Chinese Mathematical Society are really in trouble. If you wait any longer, it will be 2003. You should know that, except for the two world wars, the tradition of holding the International Congress of Mathematicians every four years has never been interrupted. Pushing it from summer to winter is still within the acceptable range, but during the New Year... Absolutely not. We at IMU also have dignity. You two are indeed very important, but it cant be more important than the two world wars, right? In short, despite some stumblings, the 24th International Congress of Mathematicians opened in Beijing on December 16. ? This is not only the first mathematician conference since the millennium and the new century, but also the first mathematician conference held in a developing country in history. ?In addition, the Clay Mathematics Institute has long announced that it will award the Millennium Prize of US$1 million to two scholars, Perelman and Chang Haonan, at this conference. ?The combination of these factors has caused this conference to attract attention from far beyond the mathematical community from the very beginning... In fact, for Chang Haonan, participating in such a meeting with thousands of people is no longer a big deal. But this is indeed the first time that I have participated in such a large-scale international conference. ??The Numerical Algorithm and Computational Science Conference he organized before, in terms of scale, level and influence, is indeed still far behind the International Congress of Mathematicians. ?However, speaking of nervousness... ?That''s not the case. Chang Haonan was not originally from a professional mathematics field. Although he had heard the names of the big guys who came to attend the conference, he basically only heard their names and had a general understanding of the extent of their achievements. It is impossible to have a fan filter. On the contrary, it was Zhu Yadan and others'' turn to worry about this situation again. ??Although well-known mathematics experts generally have checkable backgrounds and are older, they do not seem to pose much of a threat. But in this case, it is also impossible to adopt too strict security measures. In 2002, some forces with ulterior motives were trying to discredit China. This is the International Congress of Mathematicians again, ??If there are three steps, one post, five steps and one sentry, China''s international image will not be needed. You can only consider other methods. ?So, on the opening day, Chang Haonan was forced to get up early and enter the venue before the peak of the crowd when most people arrived. Unsurprisingly, there were almost no people inside the International Conference Center at this time. Even the specially prepared first three rows of seats have not even been arranged. ?Chang Haonan had no choice but to find a relatively deserted and remote location to sit down for the time being. The organizational process of the entire conference is strictly confidential. Even though he is the confirmed winner of the Millennium Prize and the most popular candidate for the Fields Medal, he does not know the specific arrangements. ?Therefore, Chang Haonan was ready to seize the opportunity to catch up on some sleep, lest he be unable to hold on until the meeting was halfway through. But just after closing his eyes, he heard a voice not far away from him. Professor Chang. ??Also has a bit of a Shanghai accent. When someone called him, he had no choice but to open his eyes and follow the sound. Found out to be an old man with a kind face and silver hair. ?Chang Haonan did a simple search in his memory and quickly found the name. The visitor is none other than the chairman of this conference, Academician Wu Wenjun. He was also one of the two winners of the first National Top Science and Technology Award in 2000. The other person with him is Academician Yuan Lao who studies hybrid rice. It is enough to show his great contribution to the Chinese mathematics community and even the entire scientific community. ??Somewhat coincidentally, Academician Wus main academic achievements are also concentrated in the field of topology. ??Although as a scholar active from the 1950s to the 1970s, his specific research direction is very different from Chang Haonan''s topology, it does not delay the recognition of the importance of the latter''s results... So, after seeing Chang Haonan arriving at the venue early, he took the time to come and say hello. Hello, Academician Wu. ?Chang Haonan stood up to greet him and shook hands: Im really sorry. I saw that I came early, so I was thinking of taking a little more rest... In both public and private matters, he should actually take the initiative to go on stage to visit the other party, but he really didn''t notice it just now. Fortunately, Academician Wu didnt care about these minutiae and asked with a smile: You were too excited last night and didnt get a good rest? Chang Haonan shook his head: Im not too excited, mainly because I just came back from a business trip and Im not used to the bed at home. When he first heard his explanation, Academician Wu was even stunned for a moment, and then he realized: "Yes...blame me, forget that you are not only engaged in mathematical theory research...but also hold other important positions..." ?Wu Wenjun could not be said to have a thorough understanding of Chang Haonan, but given his position, he still knew something about the actual situation of the latter. ??Anyway, it is the kind of treasure that the highest-level leader has personally taken care of and cannot be let go abroad casually. As for what he has done specifically other than mathematics...he did not ask casually. I cant talk about important positions, Im just giving some heat to the country... Chang Haonan had already seen people who looked like other scholars entering the venue one after another. He knew in his heart that he might not be able to rest, so he simply followed Academician Wu and walked all the way to the center of the venue. "The conference has specially arranged seats for you and Mr. Perelman, right here... Of course, you can sit on the other side if you want." Academician Wu pointed to a seat in the third row in the middle and said. Generally speaking, because those who attend the International Congress of Mathematicians are all decent people, it is unlikely that they will fight for seats. Therefore, except for those who work at IMO or are responsible for conference organization like Academician Wu, most people do not The location will be arranged directly, and it will only be roughly divided into a few areas. ?Situations like this are really rare. Looking at this arrangement that was obviously made for the convenience of entry and exit, Chang Haonan was a little bit dumbfounded: Does this have a somewhat imperial meaning Talking nonsense...whats the purpose? Academician Wu glanced at him helplessly: Its not that you both refused to go to France, and the Clay Mathematics Institute couldnt even send out any money, so it couldnt come to this conference to give you awards... It was then that Chang Haonan remembered that the awards to be awarded at this conference were far more than just those traditional awards... I almost forgot about this He scratched his head in embarrassment. Forgot? Even Academician Wu is a little nervous about this explanation: Thats half a million dollars. Did you just forget about it? Chang Haonan almost without thinking, directly gave an answer that has become a classic answer in the previous life: Im not interested in money (End of this chapter) Chapter 1038 international congress of mathematicians Chapter 1038 International Congress of Mathematicians It was only then that Chang Haonan realized that he had accidentally made a mistake. Fortunately, it is only 2002, and a certain four-character company has just emerged from the quagmire of the Internet bubble and has barely gained a foothold. However, this sentence has not yet become a famous Internet meme along with the emoticon of a certain CCTV host. ??With his current status, it would not be very offensive to others. ?However, perhaps because the tone of his answer was too natural and there was no trace of deliberateness at all, the academician Wu opposite him took it seriously and for a while he couldn''t think of what to say next He originally felt that Chang Haonan had obtained such status and honor at such a young age, and was worried that the latter might not be able to grasp it. And I came here just now with the idea of ??giving a little reminder before awarding the award. It turned out that it was completely different from what I expected... So much so that his worries immediately jumped 180 to another level: "Uh... Professor Chang, times have changed... There is no need to overemphasize being indifferent to fame and fortune... Personal value and social value are not in conflict with each other..." Chang Haonan was just casually talking about the world-famous paintings before his rebirth. Now he is praised by Academician Wu as "indifferent to fame and wealth", but he is still quite scared. ?However, before he could reply, several other people came over from a short distance away and cut off the topic in a timely manner. Wen Jun. ??Although Chang Haonan''s line of sight was blocked, when he heard that the other party could address Academician Wu in this way, it was obvious that he must be a high-ranking figure in the world of mathematics. Must be at the level of an old-timer. At the same time, Wu Wenjun also turned sideways and looked at the people walking behind him. By the way, he also gave up the position in front of Chang Haonan. ??And just as the latter had just speculated, the person who came was thin, slightly rickety, and even much older than Wu Wenjun. Looks like he must be at least ninety years old. When you take the stage later ??The leader seemed to want to give some instructions, but only halfway through his words, he noticed Chang Haonan standing next to him. ?Then the sound stopped suddenly. But the slightly cloudy eyes revealed more curiosity, indicating that he did not recognize the person in front of him. ?Of course, this is normal. ??The reason why Chang Haonan collaborated with Perelman to publish that paper was mainly because he accidentally discovered a new key to solving the Poincar conjecture during the study of manifold learning algorithms. It was not intentional. Therefore, after that wave of earth-shattering events, he quickly returned to the direction of applied research. Except for a few limited-scale lectures, I have not appeared in the mathematics community for a long time and with high intensity. For the same reason, Chang Haonan was somewhat confused at this time. He did recognize the photos of many famous mathematicians before coming here. But as we all know, the appearance of elderly people is not very recognizable in many cases. And the degree of aging may reach a new level every year. If you are not very familiar with it, it is normal to not recognize it... Fortunately, Wu Wenjun quickly stepped forward, bent down and held the other person''s hand, and then gestured in the direction of Chang Haonan: Teacher, this is Professor Chang Haonan. This sentence is obviously introducing Chang Haonan. But in fact, it is also hinting at the identity of the old man. So, Chang Haonan quickly greeted the other party slightly: Senior Chen, its an honor to see you here. Just considering that the other persons arms were being supported, I didnt go forward to shake hands. Chen Shengshen, mentor of Wu Wenjun and Qiu Chengtong, has a pioneering historical position in the field of differential geometry. ??He is also one of the absolute giants in the Chinese mathematics community. In fact, the reason why China is determined to actively strive for the right to host the International Congress of Mathematicians is largely due to the suggestions of teachers and students Chen and Qiu. The event was finally successfully held in 2002, and it was indispensable for this seniors strong support. However, Chen Shengshen was already 91 years old at this time and his physical condition was not good. Hence, Chang Haonan thought that the other party would not come in person. ??Chen Shengshen did not answer immediately, but stared at Chang Haonan''s face for a long time. Then he slowly spoke: This conference was able to be held in the capital, thanks to Professor Changs achievements at that time..." Chang Haonan quickly shook his head: This is really ridiculous "You and Mr. Qiu have been working on this matter for many years, and the entire Chinese mathematics community has seen it. Just because I was lucky enough to produce some results before the final results were announced, it cannot be attributed to me." As he spoke, Chen Shengshen also took a seat next to him with the help of everyone: Xiaoqiu and I have indeed made some contributions...but the value of this conference to Chinese mathematics research is mostly demonstrated by you. To put it more directly, after Mr. Chen and Su, it was you who brought the Chinese mathematics community back closer to you for the first time... and even reached the top position. ?This sentence made everyone around him stunned for a moment. Then he focused his attention on Chang Haonan. The Chen Su mentioned by Chen Shengshen naturally does not include himself, but refers to Chen Jiangong and Su Buqing, two mathematicians who were active in the 1930s and 1940s. After that, although there were many Chinese names shining in the world of mathematics, including himself, they were all Chinese after all, and the achievements they achieved were not considered to belong to China. Actually, right after you proved the Poincar conjecture, Cheng Tong mentioned to me that he wanted to invite you to teach at Princeton University. After a slight pause, Chen Shengshen continued: But I had already returned to China and knew a little bit about your situation, so I still stopped him I really have no plans to teach abroad ?Chang Haonan made no secret of this. In fact, although he has many projects on hand in recent years, he is not really busy. ??The reason why he became invisible at the speed of light after proving the Poincar conjecture was largely because he wanted to reduce his presence in the mathematical world ?Theoretical research is different from engineering research. Sometimes you need to be alone. The discussion within the small circle did not last long. ?As the time came closer to the opening, Wu Wenjun, as the chairman of the conference, needed to prepare his speech on stage and left the auditorium first. Soon after, a group of foreign mathematics masters who came from their residences also entered the venue one after another. ?Although not many people can immediately recognize Chang Haonan, Chen Shengshen and Qiu Chengtong are quite well-known after all. ?As long as you get close, it is not difficult to deduce the identity of the former. So in the next short period of time, Chang Haonan got to know many people casually... To be precise, many great gods Gerd Faltings, Pierre Deligne, Charles Feifman They are all pioneering senior figures in their respective fields. Maxim Kontsevich, Andrew Wiles, Richard Hamilton, Edward Witten These were first discovered on arXiv, or were later called over to review the paper. ?And Laurent Laforge, Vladimir Vvotsky, Wendelin Werner and, of course, Perelman ? and Chang Haonan are both popular candidates for this years Philippine Awards Although the specific candidates for the Philippine Prize and the nominees are strictly confidential before the awards are awarded, it is not difficult for the already small top mathematics circle to guess a rough range. Its just a matter of who the final winners are and how many. Basically, everyone agrees that Chang Haonan and Perelman will definitely win the award. But not in this session, there is actually some controversy. After all, when awarding Philippine Awards, in addition to achievements, the age of the recipient will also be considered from a human level. In principle, the age of the winner cannot exceed 40 years old. So the selection committee sometimes prefers to award mathematicians aged 36-39. Therefore, many people still have expectations for themselves, thinking that this time, they will follow the usual practice and give priority to those nominees who "if they miss it, it will be too late." ?Of course, Perelman happens to be 36 years old this year. But since it is said to be in principle, it means that the principle can be broken. For example, Andrew Wiles in 1998. Not only did he win the award at the age of 45, he even squeezed out an extra spot that year. ?The Poincar Conjecture was clearly worthy of the committee breaking its principles again. ? Then it would be normal for Perelman to win the award in the next edition in 2006. As for Chang Haonan Calculated in terms of one year of age, he is only 26 years old. Fortunately, top mathematicians are pretty respectable in appearance, regardless of how they are in private. Even if its the Philippine Prize, there wont be any public fighting over it. So the atmosphere is quite harmonious. Among this revolving crowd of people, there is one person who is more special. Steven Strogatz. Compared to the previous big guys, he is indeed far behind in terms of popularity. In fact, Chang Haonan didnt even have any impression of this name at all. But the other partys explanation quickly eliminated his confusion: "I am a professor from Cornell University. I am very grateful to you and Professor Perelman for their contributions to the arXiv open source community..." To this end, our school is going to give you two a special achievement award. I wonder if you are interested in receiving it? (End of this chapter) Chapter 1039 Even more than the Fields Medal? Chapter 1039 Isnt it even more than the Fields Medal? ?At nine o''clock in the morning, as the music sounded, the host came on stage, and the nine-day 24th International Congress of Mathematicians kicked off. There is actually no difference in the procedures between international conferences and domestic conferences. The first step after the opening was that Wu Wenjun, Chairman of the Organizing Committee of the Conference, and Jacob Paris, Chairman of the International Mathematical Union, took the stage to deliver speeches respectively. Furthermore, this section takes a lot longer than before You must know that the reason why as many as 4,000 people attended the conference this time was not just because the host China sent a large delegation. ?Third-world countries with certain mathematical research capabilities, such as India, Brazil, and Turkey, have also sent more scholars than before. ?Especially because Jacob Paris himself is from Brazil, and he wrote a lot about the special nature of this conference. After all, although Rio de Janeiro failed to win this competition and did not even make it to the final round of voting, as long as there is a start, sooner or later the International Congress of Mathematicians will be held south of the equator. Since his rebirth, Chang Haonan has interacted with foreigners a lot, so his English proficiency has improved by leaps and bounds compared to before. But despite this, it is still a bit sleepy to listen to large sections of content that has nothing to do with technology. He forcibly suppressed the desire to yawn and looked to the left and right. I found that other people seemed to be similar. Perelman, who was sitting on the other side, had already taken out a notebook and lowered his head not knowing what he was writing. "often." Charles Feiffman, who was sitting next to Chang Haonan, suddenly came over. "Um?" ?Chang Haonan was a little surprised. After all, the two of them are not familiar with each other. But he still turned his head slightly to look at the other party. Did you know that at this conference, the odds of winning the Fields Medal are both 1:1.01 between you and Professor Perelman? 1:1.01, which is already the lowest value among normal odds. Its basically equivalent to the bookmaker thinking this is a sure thing. But Chang Haonan really had no interest in the gambling industry. After hesitating for a moment, he touched his chin: "I have no idea." Three words, Feifman, who originally wanted to bring up other topics, was completely silenced. A few seconds later, he finally recovered: Dont you want to know who is on the nomination list? I have a friend Only halfway through speaking, Chang Haonan shook his head: "In no mood." ?This time, only one word was used. ?Seeing this scene, Pierre Deligne, who was sitting a little further away, immediately covered his mouth and his shoulders kept shaking. Obviously, Fefferman has used similar topics to seduce these potential Philippine Award winners and then carry out pranks not once or twice. ??But this time when he met Chang Haonan, who was in need of food and salt, he was exhausted before he even had time to sing. Fortunately, at this time, Professor Paris on the stage entered the closing stage in time, which relieved the embarrassment here. And the atmosphere of the entire venue was pushed to its climax Because after the opening speech, there is an exciting awards ceremony. According to convention, the first award should be the Newanglinna Award. ?However, this time, due to the intervention of the Clay Mathematics Institute, the one at the top became the Millennium Mathematics Award. In fact, it stands to reason that awards that are not selected by the International Mathematical Union (IMU) should not be awarded at such an important time as the opening ceremony. But there is no way, the influence of the Millennium Mathematics Prize is too great. ?If it is placed later, even in the closing ceremony, it will give people the feeling that it is the finale. It is better to put it at the front generously to show that its status is not as good as the following ones. Anyway, this is not a permanent award, this time it is a special event. Its impossible to award the award four years later, right? In short, Chang Haonan and Perelman became the first people to take the stage to receive the award. USD 500,000 per person. For people who are engaged in mathematics, it is definitely a huge sum of money. ?However, because the winner of this award was determined more than a year ago, there is no surprise. The most excited person in the audience was Langton Clay as the presenter and sponsor. After all, although it feels a bit too licking to give out money and beg others to accept it, it is precisely because of Chang Haonan''s willfulness that the award he established can be tied with the Philippine Award. It is precisely because of this that at the end of his speech, Clay made a joke and expressed his hope that he could stand on the ICM podium for the second time in his lifetime. Aroused a burst of good-natured laughter in the entire venue There are seven Millennium Mathematical Puzzles in total. There are only six left now. ??Its not Chinese cabbage. Its normal for no one to receive the second one in 30 to 40 years... After the Millennium Mathematics Prize, it is finally the turn of IMUs official awards. Following closely behind is the Newanglinna Award. ?The conditions for winning the award are the same as those for the Philippines Award, and the applicant must not be older than 40 years old. ??Its just that the scope of the award is limited to mathematical fields related to computer science. In the end, Madhu Sultan, an Indian mathematician from MIT, won this year''s Naiwan Award due to his contributions in probabilistic verifiable proofs, inapproximability of optimal problems, and optimal error-correcting codes. Linner Award. After Sultan received the award, the applause did not last long. Its not that the Newanglina Prize is unimportant. Its not because everyone has any opinions about the winner himself. Instead The main event is coming. Because in 2002, there were no other major awards such as the Chen Shengshen Award and the Lilawati Award, so the Fields Medal was directly after the Newanglina Award The list will be read out personally by Jacob Paris and presented by important figures from the host country. Although, there are many awards that claim to be the "Nobel Prize in mathematics". But if you must choose the one with the highest recognition and popularity. ?That must be the Philippine Prize. ? ? Scholars who can win this honor have all played a huge role in promoting the development of mathematics and can even become a mainstay in the mathematics world. ? also means the recognition of his contribution by the entire mathematical community. Therefore, the moment Jacob Paris took the stage, the main conference hall, which could accommodate thousands of people, was as quiet as death. Many people, especially the popular candidates for the Philippine Awards, could not help but hold their breath. ?Perhaps in response to the enthusiasm of the audience, Paris raised his head and showed a kind smile. But for some reason, Chang Haonan saw something subtle in that smile... Naughty? As if a prank had succeeded. It is normal for people who engage in mathematics to be old and naughty. But in this case, you can''t go too far. So Chang Haonan couldn''t think of any other possibilities for a while, so he could only wait and see what happened. "Everyone, after discussions and deliberations with the International Mathematical Union and the board members of the German Mathematicians Union, we finally decided to set up and award the Gauss Prize starting from this conference to commemorate the outstanding role in promoting the field of mathematics. Carl Friedrich Gauss! For a time, the whole house was in an uproar. In fact, at the 23rd International Congress of Mathematicians held in Berlin four years ago, the decision to establish the Gauss Prize had been adopted. However, it was established, and the specific year from which the selection and awarding would begin was not finalized at that time. Before this conference, there was not much news about this matter. ?So everyone basically believes that the selection of this award will not start until 2006. As a result, no one expected that Paris would directly launch a surprise attack. It wasnt until a few minutes later that the heated discussion finally subsided, and everyones attention returned to the podium at the front. ?Everyone wants to know who will be lucky enough to be the first winner of the Gauss Prize. ?Paris also raised the envelope in his hand to his chest at this time. Based on the nominations and voting by the Awards Committee, the winner of the 2002 Gauss Prize is Having said this, he paused deliberately, and then, under the gaze of thousands of eyes, he pulled out a piece of paper from the envelope: Chang Haonan from Beijing University of Aeronautics and Astronautics, and Gregory Perelman from Steklov Institute of Mathematics! (End of this chapter) Chapter 1040 Is it possible to win three awards at once? Chapter 1040: Can I still win three awards at once? This result exceeded almost everyones expectations, including Chang Haonan. According to 1998, the Gauss Prize will be awarded to scholars who have made great contributions in the field of applied mathematics. ?Although Chang Haonan has made many achievements in the field of applied mathematics, he has almost never published his results in the form of papers, and the Poincar conjecture does not seem to be easily related to applied mathematics. ?However, Paris seemed to have no idea of ??further explanation. He just put down the envelope and paper in his hand and motioned for the winner to come to the stage to receive the award. ?There is nothing unusual about this. The distinction between mathematics and applied mathematics itself is not so clear-cut. ?Especially since technology has developed to this day, it is really not easy to find the so-called pure mathematics that is completely "simple and useless". Including those unpopular number theory directions that were considered to be of only interesting value a century ago, after the advent of the information age, they have also found their own fields of application. So, I have to say that Chang Haonan and Perelman have contributed to the application field... ?No one can refute that. ?Of course, there will definitely be some scholars in the field of real applied mathematics who have some opinions on this, but at most they are just grumbling in their hearts. ? Even if you want to question it, you can only wait until the next session to see the situation - ??If it is still awarded to a theoretical scholar, and the other party does not have hard-core results such as Poincar''s theorem, then it is not too late to settle the matter together. ??And in fact, after hearing that Chang Haonan and Perelman won the Gauss Prize, there were still a group of people who were very happy. That is, several other scholars who are also candidates for the Philippine Prize. ?This is easy to understand. A total of four awards were awarded today. ?The Newanglina Prize is completely irrelevant to most peoples research directions. ?There are three more. You two have already received two of them together. ?Then due to emotions and reasons, its someone elses turn to be the last one, right? The competition scope of the Philippine Prize is very narrow, and the number of possible winners in each session is no more than two. The denominator is missing two at a time, which is great news for other people. After all, we are all competitors, so it would be very honorable not to step on each other and stab each other. ?It can only be called human nature to rejoice in the misfortune of two people who have a high probability of being eliminated. There is nothing to criticize. In short, amidst the thunderous applause and the attention of the audience, Chang Haonan and Perelman, who were still a little dazed, had to leave their seats, each greeted the surroundings, and then walked to the stage. The Gauss Medal is also a round golden medal, but its shape is much simpler. It only has Gauss''s portrait, full name, awarding organization, and three lines of letters "For Applied Mathematics" printed on it. Let alone a strange person like Perelman who refused to accept the Philippine Award in another timeline, even Chang Haonan did not have any psychological fluctuations about this. In fact, even he began to feel that he might not be eligible for this Fields Medal. Therefore, when giving his acceptance speech, he slightly changed the content he prepared for the Philippine Award and said it: "I am very grateful to the International Mathematical Union and the German Mathematicians Union for their recognition of my research results. Poincar''s conjecture, that is, "a simply connected closed three-dimensional manifold is a three-dimensional sphere." This concept itself is pure and abstract, and does not seem to be It has no practical value, and even because its description is too simple and intuitive, it often gives people who are not majoring in mathematics an illusion. When he said this, everyone in the audience, including Paris and Perelman who had already spoken next to him, all showed knowing smiles The abstract nature of Poincar''s conjecture and the simplicity of its description form an extreme contrast. So that in the absence of sufficient professional training, it is impossible to understand the conjecture itself simply by relying on the textual meaning of the conjecture. It also makes it rare for civil sciences to touch on this research direction. ??This is in sharp contrast to the field of number theory, which receives 10,000 spam submissions every day. After a slight pause, Chang Haonan continued: "However, Thurston''s geometry program presented the landscape of three-dimensional manifolds to the world, and Hamilton''s Ricci flow provided a powerful tool for curvature to construct the Riemannian metric. In the process of proving the Poincar conjecture, following the computer With the development of technology, the development cycle from pure theory to applied algorithms is getting shorter and shorter. Also thanks to the development of computer technology, the boundaries between pure mathematics and applied mathematics are gradually beginning to be broken..." "In practice, the application of Ricci flow on two-dimensional surfaces has gradually begun, and our research has proven that the application of Ricci flow on three-dimensional manifolds is more profound and powerful. Although the topology of three-dimensional manifolds and geometric knowledge are far from universal, but as a faithful portrayal of natural truths, we believe that this mathematical tool will become a powerful weapon in rewriting the course of history in the future..." ?Although he looked calm on the surface, after actually returning to his seat with the medal, Chang Haonan discovered that his shirt was almost soaked with sweat. Obviously, in this situation, it would be a lie to say that I am not nervous at all. ?At this time, Charles Feiffman, who just wanted to play a prank, came over again. Chang, dont worry, you are too young. I believe you will win the award in 4 years ?Chang Haonan lowered his head and looked at the Gauss medal in his hand for a while, then closed the box and raised his head to look directly into Fefferman''s eyes. After watching for a while, he was sure that the other party was indeed here to comfort him. Its just that the method of comfort is a bit unfair... Well, thank you for your blessing. ?Chang Haonan sighed. Deligne also interjected at this time: "Actually, Fefferman is very optimistic about you, he just... is not very good at organizing language." He was very familiar with Feiffman''s mouth. If you dont explain it later, it might cause some misunderstanding. Its not like it hasnt happened in the past. Yes, I also bet $1,000 on you to win the prize...Im afraid its all in vain now... ?Feiffman continued, but because of the half-joking tone, Chang Haonan couldn''t guess whether it was true or false. But the other party has no ill intentions, thats for sure. ?While the three of them were chatting back and forth, Paris once again came on stage holding an envelope of the same style. ?This time, it has to be the Fields Medal anyway. ?However, perhaps it is because we have experienced a round of crying wolf just now. Perhaps after removing the two competitors, there are only four candidates with clear prospects left. ?Although the venue became quiet again, the atmosphere was no longer as depressing and anxious as last time. Everyone is waiting for the final announcement of the results with a more relaxed attitude. Ahem ?Paris coughed twice deliberately and gave it a try. But he also knew that todays participants have been dragged away for too long. ?Hence, he soon returned to his original solemn and steady voice: From the moment he was born out of the sky to the groundbreaking moment, what he pursued was to realize the magnificence of geometric structures and the depth of natural truths In his studies of differential geometry and topology, he provided completely new tools for understanding the shape of the world and the universe At first, people were quite interested. But the further it went on, the more everyone felt that something was not right. This description...why does it feel a bit familiar? I dont know when, the first gaze looked in the direction of Chang Haonan and Perelman again. Immediately afterwards, everyone realized one thing one after another. How do you feel its still the two of them? ??Until Paris pointed out the Poincar conjecture at the end, the answer was already very clear. Dont talk about other people, even Chang Haonan himself was numb No, buddy? ??Did I just say all the acceptance speech I prepared? ? Could you let me make up another one? (End of this chapter) Chapter 1040 Mathematics is just a hobby (this Chapter 1040 Mathematics, just interest (this chapter is free) Compared with the ups and downs at the conference site, outside the broadcast camera, it was a completely different scene ??Yes, since Chang Haonan is one of the most popular candidates for this year''s Philippine Awards, Station C devoted an entire morning to covering the opening ceremony for the first time. Taking into account the acceptance level of most audiences, a translator was also assigned. ?Many colleges and universities, especially college mathematics departments, even adjust classes for half a day for this purpose. As for Beijing Hang University That goes without saying. ??Although the scale and level of the Department of Mathematics of Jinghang University have not caught up with the international forefront, Chang Haonan is after all a student of the school who has gone abroad and a professor of the school, so even other majors have basically organized centralized viewing. The moment Chang Haonan''s name was read out for the third time, the entire campus was almost drowned in warm cheers and applause. That is to say, there is no online live broadcast of this meeting, otherwise the entire screen may be filled with barrages. No, can you really win three prizes at an international conference of mathematicians? Even Tang Lintian, who was sitting in a certain classroom "having fun with the people", felt a little superior and asked a more knowledgeable mathematics professor next to him. Wellstrictly speaking, its actually two. ??The latter pushed up his glasses and even had to raise his voice to answer: The Millennium Mathematics Prize is not an award issued by IMU. It was only granted access to the ICM venue because of Professor Changs request. Having said that, winning two out of three awards is already an exaggeration. Tang Lintian wanted to take a sip of water to calm down his shock, but he found that the hand holding the cup couldn''t help but tremble, and he couldn''t bring the mouth of the cup to his mouth accurately. Had no choice but to give up. "If I remember correctly, this should be the first Chinese to win the Philippine Award?" As for Chinese nationality, that is indeed the case ??Tang Lintian raised his head again and looked at the curtain at the front of the classroom. At exactly this moment, the broadcast screen captured the Fields Medal lying next to it. Principal Tang, is Professor Chang not yet 30 years old this year? Just as Tang Lintian was sighing, a student''s voice came from not far behind him. He turned around and found that almost everyone in the lecture theater behind him had stood up excitedly. Im definitely not under 30 years old Tang Lintian is very familiar with Chang Haonans experience: I remember he should be in his twenties this year ?This unintentional number further stimulated the students reaction: Twenty-six-seven...should he be the youngest winner of the Philippine Prize in history? Someone immediately thought of this. At the beginning of the 21st century, China is gradually beginning to accelerate its development and needs the most efforts to build national self-confidence. ?At this juncture, in mathematics, a subject that is the crown jewel of science, there is a Chinese national who is the youngest Fields Medal winner... ??Although it may not be directly related to everyone, most people will feel honored... The previous youngest winner was Pierre Serre of France, who won the award at the age of 27. If Professor Chang is 26, he must be the youngest. If he is 27, it depends on his birthday..." Obviously, someone has done some homework in advance. Looking at his birthday...this award is postponed to the end of the year, which is very detrimental to Professor Chang..." Listening to the discussion from behind, Tang Lintian felt for the first time that the chaotic voices of the students were also so pleasant. ?He quickly took out his cell phone and was about to ask his secretary to check the specific birthday on Chang Haonans file When Chang Haonan was born in the late 1970s, because the household registration system was not perfect, it was normal for a person''s actual birthday to differ by several months or even years from the recorded birthday, so he was not sure. Is that answer correct? ?However, before he could finish editing the text message, while Paris was reading out the deeds of other winners, the host of Station C had already mentioned this matter. One thing that needs special mention is that Professor Chang Haonan is only 26 years old this year, one year younger than the French mathematician Jean-Pierre Serre who won the Fields Medal in 1954, so he is the youngest person so far. Fields Medal winner "oh-" The students once cheered when their suspicions were confirmed. To be honest, IMU is really bold this time, awarding the award to such a young Professor Chang. I heard that the Philippine Award cannot be awarded after the age of 40, so sometimes it is inclined to award the older ones first..." After calming down a little, someone commented again. Maybe its because of Perelmans age, he looks to be in his thirties Its not necessarily that Slavs age faster, maybe they just lose more hair I think IMU also has the idea of ????occupying a niche first... Otherwise, in four years, God knows which one will be more famous, Professor Chang or Fields? Also...it would be a bit embarrassing if the Cray Institute of Mathematics was like this time and rushed to give out prizes to others..." At the same time, inside the venue. ? Paris finally announced the list of all the winners. In addition to Chang Haonan and Perelman, the other two laureates are Laurent Laforge, who established a new connection between number theory and algebraic geometry, and Vladimir Putin, who developed a new cohomology theory of algebraic varieties. Mir Vvotsky. Compared to the first two, their research results are less well known by others, but they have also made extremely revolutionary contributions to their respective fields. Of course, France and Russia are both long-standing big players in the Philippines Awards, so their awards are unlikely to attract the attention of tens or even hundreds of millions of people like Chang Haonan. ?Chang Haonan stood on the stage with three others and received the glittering medal from the special guest of honor, the big leader. When it was his turn, the two shook hands for an extra long time. Little comrade, we meet again. Even though his English was good, the other party still spoke in Chinese with a Jianghuai accent: Congratulations, you have become the youngest Fields Medal winner. Thank you, and also thank the organization for supporting me. ?Chang Haonan This is definitely not a cliche. ?Since his rebirth, he has been making exceptions and doing special things all the way to where he is today. Almost every step is based on the policy''s operational limits. ?Without the special care given by above, even if he can still achieve these achievements in the end, at least it will not be as fast as now. Thank you also for your great contribution to China After the award presentation, the four winners sat down in a special area on the stage, and Paris also returned to the stage, preparing to give his acceptance speech in the form of a simple interview. The reason for using this method is also considering that both Chang Haonan and Perelman have come to power for the third time. Theres really nothing more to say. The research results of the two of them are a blockbuster for the mathematics community. Paris was the first to speak: I dont know the next step. Are you going to continue to conduct research together, or do you each have different plans and goals? This is actually a fairly straightforward question. ?However, it is of interest to many people in the audience. Mainly, you can avoid pitfalls For most scholars who are not so willing to challenge themselves, if these two people are interested in a certain issue together, the best way is to stay away. Otherwise, you may be halfway through the research and find that the problem is gone... ?However, Perelmans answer was quite explosive: I have fulfilled my original dream of devoting myself to mathematics research, and then...maybe I will quit mathematics. ??Except Chang Haonan, who already knew the plot, everyone was confused. Paris'' hand shook and the microphone almost dropped to the ground. What are you doing? ?Although it is said that the golden age of mathematicians is before the age of 40, does it mean that they are useless after 40? ??How can anyone win the Philippine Prize on the front foot and then retire from the world? But looking at the other person''s expression, it doesn''t look like a joke at all... For a while, there was even a moment of silence on the stage. In the audience, many people felt a little lucky. After all, half the risk is reduced. After a while, Paris turned to Chang Haonan: Professor Chang, you dont have the same idea, do you? There was almost a pleading in his eyes. For those who only care about the mathematics community, Chang Haonan and Perelman have been almost invisible in recent years. Since the latter is going to withdraw from the world of mathematics, the former is obviously also a possibility. But if two people in a row played like this, Paris might not be able to get off the stage at all today. However, for everyone in the audience, it would be best if both of you monsters quit the world of mathematics. Please, leave some chance for future generations! Dont worry, it wont. ?Chang Haonans answer made Paris finally breathe a sigh of relief: Then the conversation changed again: But I am not a mathematics major. The reason why I study mathematics is purely out of coincidence and a little interest...so I am not sure about the direction of subsequent research. Let fate decide... (End of this chapter) Chapter 1041 My situation is not universal Chapter 1041 My situation is not universal... ?Chang Haonan''s remarks are simply a ticking time bomb for the audience who want to avoid his sharpness. Considering his age, it is almost equivalent to randomly selecting lucky peers from one direction within ten years for burial. Of course, this is mainly for ordinary scholars who make up the vast majority. As for the real big guys, their mentality is completely different. They may be more inclined to see it as a challenge or motivation. Do you think he meant what he said, or was it just a cliche? Feifman held his face with one hand and tapped the armrest of the seat with his other hand. He suddenly asked Deligne beside him. The latter raised his head and thought very seriously for a while. But in the end, I still couldnt give a definite answer: I cant say. He is only 26 years old this year, which is too young even for the Fields Medal. He has enough time to develop a new research direction..." ??Although the Fields Medal has an age limit of under 40 and is an award for young mathematicians, most of the winners are still concentrated around the age of 35. ?At this age, although it is not yet the end of his career, he has basically started to decline in terms of creativity and pioneering. Most people will gradually turn to mathematics education, or enter research directions that are more empirical. But a mathematician in his twenties... There are still endless possibilities. For example, Perelman only became interested in the Poincar Conjecture when he was around 30 years old... ? Fefferman nodded and did not continue to reply. Instead, he turned his attention to the people on the stage again. However, just when he thought the conversation was over, Deligne suddenly said: "I suddenly felt that Chang''s research method...or the entry point of research is somewhat close to that of Lions." ??The name was obviously beyond Feffermans expectation: Lions? He subconsciously turned around and looked at a figure on the edge of the row behind him. ?There is sitting the 1994 Fields Medal winner, French mathematician Pierre Lyons. Not this Lions. Deligne quickly corrected: It was his father, Jacob Lions. That was a mathematician from two eras ago Yes, but old Lions often starts from a specific application. If he finds that the theory is not complete, he starts to study the theory himself, or even builds a set of mathematical tools..." Speaking of this, Deligne paused for a moment, and then suddenly smiled: The research directions of these two people are very close. They do partial differential equations, inserted space, finite element analysis... almost everything. So, which field Chang will focus on next will most likely depend on the specific problems he encounters ?While the two were talking, the interview on stage also entered the second half. Fortunately, compared to Perelman and Chang Haonan, who acted out of common sense, the other two winners behaved much more normally. Perhaps because this is my first time on stage today, I havent said the speech I prepared before. In short, Paris, who was at a disadvantage to his opponent, saved Bo Zun... As the award ceremony ended, the entire opening ceremony also came to an end. This International Congress of Mathematicians lasts for 9 days, leaving enough time for academic reports. There is no need to squeeze in the half hour between the opening ceremony and the luncheon. Attendees can take advantage of this time to rest, have free activities or communicate. ?Although there are some small programs arranged by the organizer, they are mainly used as a background to avoid a dull moment and activate the atmosphere. After all, few people come to the conference just to enjoy the artistic performances... Chang Haonan walked off the stage and was surrounded by reporters before he even had time to return to his seat. In fact, after so many years, he has sufficient experience and preparation to deal with the media. In most cases, he only needs to come up with a fixed format of rhetoric. But in the current situation, when facing an interview from station C, it is not easy to deal with the errand like this. Especially, he had racked his brains just now and said everything he could say. ??If the other party asks him again how he feels at this time as usual, he will really be unable to hold it back. Fortunately, the reporter in front of me is pretty good. At least you should have understood what was just exchanged on the stage. So these repeated contents are not mentioned again. Rather, after the congratulations at the beginning, he went directly to the next step: "Professor Chang, we noticed that you are not a mathematics major and have not participated in any mathematics competitions in the past, but you have still achieved world-renowned achievements... Do you think this means that our current mathematics education and selection system still has some limitations? What needs improvement? ?Hearing this question, Chang Haonan, who had been quite comfortable on stage just now, immediately started to sweat a little. The backwardness of China''s theoretical mathematics community is mainly due to poor foundation and insufficient investment. Compared with other subjects, mathematics has a longer cycle of achievement transformation and a higher level. The current development situation in China determines that the vast majority of mathematics majors will eventually enter more applied fields. ?Such as finance, engineering, computer... This situation will gradually be resolved with the development of the national economy and comprehensive national strength. But not now. As for mathematics education ? Even if there is a real problem, it is still too far to use him as an example. Hence, Chang Haonan quickly organized the language in his brain: "Education and selection methods do need to keep pace with the times, but I think that for the vast majority of people, going along the existing education and competition system is still the option with the least risk and the highest return." "As for me..." ?He paused for a moment, then changed into a somewhat helpless tone: Even among the international mathematics community, my situation is not universal, so it does not have much reference value ?This answer made the reporter opposite me speechless for a moment. ?Although it sounds like self-effacement at first, if you look closely... Why do I always feel that something is not quite right... Since it is a live broadcast, this content is presented on the TV screen as it is after a short delay. And quickly aroused enthusiastic responses among the students who watched the live broadcast. Hey guys, this answer is so exciting... The international mathematics community is full of geniuses. Isnt this equivalent of Professor Chang saying that even among a group of geniuses, he is the most special one? But hes not wrong... Is there anyone else who won the Fields Medal at the age of 26? Its true what you said "Alas... We mortals should just do what Professor Chang said and just take classes and participate in competitions honestly..." By the time Chang Haonan had finished the interview, many people had already left the main venue and headed to the restaurant. ?However, Wu Wenjun and a group of Chinese scholars stayed where they were, waiting for him. Only Mr. Chen Shengshen bid farewell to the meeting early due to health reasons. Seeing Chang Haonan return to his seat, everyone quickly gathered around him. Amidst the continuous shouts of congratulations, almost all eyes involuntarily glanced at the small box in his hand. Chang Haonan quickly noticed this and simply opened the lid generously and placed the medal on the small table of a seat next to him. In fact, in terms of design alone, the medals of the Philippines Awards are mediocre. ??On the front is a relief portrait of Archimedes, plus a string of Greek letters for Archimedes'' name. Its just that the meaning contained in it is enough to shine with the most brilliant brilliance... Professor Chang. After enjoying the close-up view, it was Wu Wenjun who returned to the topic first: Just now we were discussing whether to establish a new mathematics research institution in your name in the country? In this way, good resources and excellent students can be gathered together, and it can also promote cutting-edge research in the field of theoretical mathematics in my country. In fact, as early as about half a year ago, someone from the Chinese Mathematical Society had already put forward similar suggestions. ?Just to avoid giving the impression of popping the champagne midway, the matter was not discussed publicly until after the dust settled on the Philippine Awards. Yes, it can be called Chang Haonan Institute of Mathematics, or Changs Institute of Mathematics. Yuan Xiangya stood slightly outside and said: As for resources...I think all major domestic universities will not be stingy on this kind of thing... For a time, voices of approval arose one after another from all around. But Chang Haonan felt a little headache about this. As Chinas first Philippine Prize winner, it is obviously unrealistic for him to completely withdraw from the world of mathematics. But Im not willing to just dive in ?The reason why Chang Haonan is able to maneuver in the Science and Technology Commission system, in addition to his incredible project efficiency, is largely because he has been familiar with the various entanglements in it in his previous life. But as for theoretical mathematics... Sorry, Im not familiar with it. ?Even if he himself is able to run rampant and fearless based on the reputation of the Philippine Prize, it may not be a good thing for the entire Chinese mathematics community to rashly get involved and encourage others. Academician Wu, Director Yuan. ?After thinking for a long time, Chang Haonan raised his head and looked at Wu Wenjun and Yuan Xiangya, who were the first to propose. ?His voice was not loud, but it instantly silenced the noisy surroundings. I feel that given the current domestic development situation, it is not suitable for such an operation. Theoretical research is different from engineering projects. Compared with experience and brainstorming, many times it requires more personal study. Under such circumstances, if we drain the potential of colleges and universities across the country and pool them together, even if we can produce some good results in a short period of time, in the long run, it may not be beneficial to the development of the academic community. Now, the words spoken from Chang Haonan''s mouth carry more than a thousand weight. ?The people who were in high spirits just now also calmed down. Thats not as good as this. ?Wu Wenjun gave the next best idea: A nationwide scholarship can be established in your name, Professor Chang, to reward young people who have shown outstanding talents in the field of mathematics during their student days. "This funding is not a one-time grant, but will be issued from the time the student wins the award until the end of his studies. As long as he passes the annual basic assessment, this assessment can be carried out by Professor Chang himself or by a group of experts specially designated by Professor Chang. Proceed without others interfering..." "in addition" "besides" At first, Chang Haonan was just listening normally. But the more I listened, the more I felt something was wrong. ?The other party''s idea is clear and logical, and it doesn''t look like something that was thought up on the fly. At this moment, he suddenly realized. ??It seems that I was tricked by the strategy of lifting the roof off and then opening the windows... (End of this chapter) Chapter 1042 Air Police 2000 data link antenna Chapter 1042 Air Police 2000 Data Link Antenna Under Wu Wenjuns urging, Chang Haonan finally nodded. He originally thought about whether he should donate part of the prize money as a sponsor in his own name, but he was rejected by the former. ?According to Academician Wu, the fact that Chang Haonan can agree to give his name is much more important than money. As for the money issue The Chinese mathematics community is a bit poorer, but it cannot afford to sponsor a scholarship that is expected to have no more than 10 winners each year. Thus, the Permanent Prize, which would become famous in the Chinese theoretical research community in the future, was determined in a seemingly random manner at the opening ceremony of the 24th International Congress of Mathematicians. A scholarship is naturally a small matter compared to the previous hard work of establishing a mathematics research center. Chang Haonan doesnt even need to do anything himself. As long as some final shortlisted candidates are interviewed every year. If you really cant spare the time, you can entrust others to do it, or you can do it online in a few years. This is indeed relatively friendly to him. Therefore, after giving a one-hour report on the morning of the second day of the opening ceremony, Chang Haonan went missing again and did not participate in other subsequent activities of this conference. Fortunately, the mathematics community is used to this kind of situation, and after all, there are still two "normal people" among the four Philippine Prize winners, so this incident did not cause too big a stir... In fact, Chang Haonan had already received a large number of invitations in the afternoon after receiving the award. Just like when the Poincar conjecture was proved two years ago. After all, people at home and abroad are quite enthusiastic about giving hats to celebrities in academic circles to gain popularity. ?Various honorary degrees, honorary professorships, awards you may or may not have heard of... ?Dizzying. It is difficult to say how much Chang Haonan is repelled by this kind of behavior. What''s more, many of them said that the award can be made remotely according to Professor Chang''s personal wishes, or can be directly expedited and the award procedure can be carried out at the International Congress of Mathematicians. ??If he could really get a degree or even a teaching position from a top university like MIT, Princeton or Stanford, he would still be willing to accept it. However, after the report was completed, he received news from Hao Jing. The installation phase of the in-cabin equipment of Air Police 2000 has come to an end In addition to the large antenna on the back of the aircraft, the early warning aircraft also needs to install a radar backend in the cabin, as well as a complete data processing and command and control system. Gadgets are okay, but many of them are bulky and not easily removable, making it difficult to get them straight through the cabin door. For the transport aircraft platform, it can still be sent in through here before the tail hatch is sealed. But as a passenger aircraft, the Tu-214K obviously does not have such conditions, and it is a passenger aircraft that has changed the luggage compartment into a fuel tank. It can only be put in through the skin opening on the back of the fuselage before the disk-type radome is installed. For the Air Police 2000 prototype, which has entered the high-speed stage of modification and changes almost every day, this time window is obviously not very long. ?Furthermore, Haofei knew that Chang Haonan was participating in the International Mathematics Conference. ?In this case, if you contact me midway, there is a high probability that there are some problems that need to be solved by him, but it is just not convenient to talk about it on the phone. Therefore, after careful consideration, Chang Haonan returned to Haojing before the conclusion of the International Congress of Mathematicians. December 18th. In the cold wind of winter, Chang Haonan, surrounded by several entourage members, walked into the final assembly workshop of Haofei Group. It is not the one that was previously modified to JHD-7. It was used to assemble the H-6 in the past. After all, although the 110-ton platform is not very large when placed in a passenger aircraft, it will definitely become a giant if it is thrown into a tactical aircraft. In fact, even this workshop has undergone some equipment modifications. Otherwise, there is no way to install a huge radome with a diameter of 10 meters on an aircraft. Today is also the first time that Chang Haonan has seen the appearance of the equipment in the Air Police 2000 cabin relatively completely. Mr. Chang. Wearing work clothes, Liang Shaoxiu came forward and shook hands with Chang Haonan warmly: The morning before yesterday I happened to catch up with the project seminar, and I specially asked someone to record the part where you accepted the award... He looked obviously thinner than the last time we met. It was obvious that he was under a lot of work pressure during this period. In fact, the Air Police 2000 is the only major model in which Chang Haonan was not involved in aerodynamic and structural design at all in recent years. Furthermore, Liang Shaoxiu, as a technical staff member from Nanzheng, is now in charge of a project on the border of Haojing. Even if the two parties have always had a close relationship, it is difficult for him to act as freely as if he were in his own home. Not so much as not Chang Haonan put on the work clothes handed over to him and waved his hand: Just some thoughts, nothing special worth remembering... If you really want to read it, you might as well read the report I gave yesterday morning. Liang Shaoxiu showed a free and easy smile: The part about the opening ceremony can make my children happy, but how can I understand the report... Chang Haonans report involves the most cutting-edge abstract topics in the field of differential geometry. Even mathematicians may not be able to understand it. As an aerospace engineer, Liang Shaoxiu is indeed a bit difficult to understand. Lets go and have a look at the plane. As Chang Haonan changed into work clothes, the two of them also ended their chat and returned to the topic. ?Led by Liang Shaoxiu, a group of people immediately came to the Air Police 2000, which had entered the most critical stage of modification. ??The huge disc-shaped radome is placed here, waiting for final installation. Mr. Chang, we have tested three data link antenna installation solutions. Liang Shaoxiu introduced: "Judging from the communication effect alone, if it is mainly for satellite communications, then installing an additional antenna directly on the top of the radome is the option with the least impact on the design of the entire machine. However, because there has not been time to conduct electromagnetic compatibility testing, this solution Not very cyclically feasible. We have reserved an extra mushroom-shaped space at the top of the radome. When the mass-produced Air Police 2000 enters service, this solution should be directly available. But on the prototype ?He stepped forward and came to the plane with a large piece missing from the back: "Considering the need for direct communication, we plan to set the antennas at the top of the vertical tail and under the nose to cover the communication needs of the upper and lower hemispheres respectively. At the same time, we keep the data link antenna as far away from the radar antenna as possible to reduce the trouble caused by electromagnetic compatibility. Liang Shaoxiu is a technician who has grown up following Chang Haonan''s projects throughout the entire process, so he can carry out instructions without compromise. After hearing this, the latter nodded with satisfaction. "but" At this moment, Liang Shaoxius tone suddenly dropped: Mr. Chang, during the testing process, we accidentally discovered some new problems... The reason why Im so anxious to call you back this time is because of this matter. Chang Haonan''s footsteps stopped. It was indeed the same as he guessed yesterday. Dont be afraid if there are problems. ??As he spoke, he turned back and looked at Liang Shaoxiu behind him: Ground testing is meant to find problems Thats right. Liang Shaoxiu breathed a sigh of relief: "Previously, the communication system of Air Police 2000 included 2 high-frequency and 3 ultra-high frequency radio stations. Since only voice communication is needed, the selection of communication protocol is relatively simple. It only needs to be determined according to different transmission distances. " But now, because of the need for command through data links, the types of communication systems have more than doubled than in the past, and they also involve wide and narrowband over-the-horizon voice, data communication links, external tactical databases, etc. There are many different types of information, as well as different anti-interference technologies such as shortwave adaptive frequency selection, spread frequency hopping anti-interference, digital confidentiality, digital information exchange, etc..." "Although there is no problem with the performance of each communication system itself, before data transmission, different communication methods need to be selected according to the type of data to be transmitted and the transmission target. In this way, the previous manual communication management system is a bit Its overloaded. "For example, during the ground test, when the early warning aircraft is connected to the data link for command, if it wants to communicate with the ground tower via radio at the same time, the communications officer needs to conduct six groups of operations separately. Not only is the efficiency very low, but in actual combat situations there are still Misoperation may occur..." Well ?Chang Haonan put his hands behind his back, raised his head and fell into thinking. The situation mentioned by Liang Shaoxiu can be simply compared to difficulty in choosing. Because there are so many forms of communication, if all decisions are left to people, even well-trained professionals will inevitably make mistakes while busy. So, he quickly concluded: "So, we need to design a sub-system protocol to include all internal and external communication, so as to automatically select the appropriate communication form and technology for different data types...but it cannot be the traditional TCP protocol, or in other words, At least it needs to be improved so that it can adapt to non-homogeneous transmission paths..." ??As he gradually analyzed, the eyes of several technicians from the Electronic Technology Group next to him gradually glowed... (End of this chapter) Chapter 1043 Information air combat Chapter 1043 Informationized Air Combat As a transmission control protocol spawned by traditional network forms, TCP itself does not care about the specific medium in which IP runs. However, in practice, this matter must be taken into consideration, because most TCP protocols are implemented in the process of program implementation. We have all experienced optimization based on some assumptions, many of which are correct on wired networks but not on wireless networks. Take the simplest transmission timeout as an example. Once it is determined that packet loss has occurred based on the retransmission timer expiration or repeated ACK signaling, the current TCP protocol considers that network congestion has occurred, and then enables network congestion policies to reduce the transmission rate, such as slow start and adjust the congestion window is 1 TCP segment. However, the actual situation may be that the data transmission at this time is based on the wireless network. When the ACK signaling cannot be received, it is most likely because the mobile node is switching or the signal of the wireless network is not good. Therefore, correct Instead, the strategy is for the sending node to maintain or speed up the rate. As for military equipment, including early warning aircraft, the network media situation is more complex. From the radar to the command platform inside the aircraft, this process is probably a wired transmission distance of about 1-2km. To send the information to the outside world from the aircraft, it needs to go through a wireless network of 100-200km, or if it is satellite communication, it may be thousands of kilometers. In this case, if you want to make the right decision, you need to first consider which paragraph the problem is... As Chang Haonan walked and analyzed, everyone soon came to a small room next to the assembly workshop. This place was actually a workers'' lounge at first, but currently Haofei Group''s final assembly business is almost all concentrated on the J-H-7A next door. This workshop for large aircraft does not have many workers who need to take turns to rest, especially the Air Police 2000 Since entering the site, engineers and technicians have been here almost all day long. So in the end, it was simply changed into a small conference room. ?Of course, the conditions are certainly not as good as those outside. There is not even a projector that can be connected to a computer. But for Chang Haonan, having a blackboard is enough for most problems. ?He took the familiar route to the middle of the house and took a piece of chalk from the table at the door. While others sat down on chairs in a circle around them. Actually, the data that early warning aircraft need to process seems very complex, but it can generally be divided into two categories. Chang Haonan turned around as he spoke and drew a brace on the blackboard: The first is data that has extremely high timeliness requirements but is insensitive to lost data packets. A typical example is the air condition data detected by the radar of early warning aircraft. "At the target speed of air combat, a piece of information or a piece of information will be useless after a few seconds at most, and for modern phased array radars, the target will not be lost due to the lack of individual points, so communication analysis What the system has to do is to deliver it to the destination in the shortest possible time. Once the transmission fails or times out, it will directly abandon such data..." "The other type requires extremely high transmission reliability, but some compromises can be made in terms of timeliness, such as combat intentions from superior units or conveying action instructions to terminal combat aircraft. This type of data must be 100% complete. successfully communicated, but in most cases, this type of information is valid for a long time and will not lose its usefulness just because it is delayed for a few seconds..." Chang Haonan''s writing was as fast as flying, and he quickly wrote several keywords corresponding to these two types of information on the blackboard. At this time, a voice came from a corner of the room: "Mr. Chang, the combat instructions you just mentioned should generally be transmitted directly through encrypted radios. As long as the second type of command information is excluded from the functions of the communication subsystem, the remaining parts will be easier to design. " Chang Haonan happened to have finished writing the last word on the blackboard at this moment and stood up again: If we only look at the present, then this is indeed the best choice. But in the long run, in future information operations, command orders may not necessarily be issued through voice commands. ?This sentence made the surrounding audience stunned: "ah?" In fact, at this point in time at the beginning of the 21st century, the Chinese military and technical personnel have already begun research and exploration of new combat theories, and have achieved some results. However, due to limitations in hardware and cost, these explorations still exist more on paper and in a few experimental units. ?Most of the people sitting in the conference room are ordinary front-line engineers, and it is normal for them to not know enough about these things. ?For people of this era, it is relatively easy to understand the matter of "using information flow instead of voice to convey empty information." But using information flow to transmit command orders does seem a bit abstract. After all, if it is text, the information density is not as good as speech. Only Guo Lin, who was sitting at the front, lowered his head in thought and seemed to understand what Chang Haonan meant. Our past command orders were issued step by step. When Chang Haonan saw this, he explained directly: "For example, the command headquarters issues large campaign targets to the early warning aircraft, and the early warning aircraft then issues air situation information and campaign arrangements to each fleet. Finally, the frontline commander at the regiment or group level arranges specific orders for each combat unit, so that each The level instructions themselves are relatively simple and can naturally be transmitted by voice. However, even if the information itself can be transmitted within a few seconds, it takes a process for the human brain to understand and process the information, especially for grassroots commanders who are themselves in the middle of a battle. "So, a better way is to let the early warning aircraft or even higher-level headquarters take on part of the low-level decision-making and information processing, and then directly convey the command information to the combat units. In this way, not only the burden on the front-line commanders is greatly reduced, but also the burden on the airborne commanders is greatly reduced. Units can also get rid of the organizational constraints of aviation regiments or aviation groups and conduct operations in smaller and more flexible waves. But this also means that the instructions that need to be conveyed at each level will become extremely complex. At this point, he rotated the blackboard next to him 180 and drew two circles on it: "For example, if one of our regiments fights against one of the opponent''s regiments, under the original command method, this is equivalent to one unit fighting against one unit. As long as the order to expel, intercept or fire is given through voice commands, as for how to implement it specifically, Thats what the flight commander is worried about. Then, many small triangle symbols were drawn in the circle: But now, we need to directly command 24 aircraft to fight against the enemys 24 aircraft, then ?Chang Haonan looked again at the people sitting around the conference room. The complexity of the instructions will become hundreds of times higher! ??Guo Lin picked up the words just right: So the command information and air situation information need to be sent to each combat aircraft in the form of a data link. Thats right. Chang Haonan put down the chalk and patted the dust on his hands: Micro-management has two sides. If its done well, the weak will defeat the strong. If its not done well... He did not continue. ?However, a burst of laughter still broke out in the small room ?The Transportation Captains micro-manipulation meme has been widely circulated even in this era, so everyone knows who he is targeting. Information warfare, to a certain extent, is to reduce the difficulty of micro-operation for commanders and reduce the intermediate levels of command to achieve maximum efficiency in transmitting information. After the little joke, Chang Haonan concluded: And air combat, due to its ever-changing nature, is the occasion where the effect can be most intuitively reflected! ?Although Chang Haonan has never successfully joined the army in his two lifetimes, he was an experienced veteran with many project experiences in his previous life, and he still understands these basic concepts quite well. ??If you go to a military academy to give a lecture, you may still have to show your timidity. Surely enough for the occasion at hand. Facts have proved that this explanation works well. Everyone quickly accepted the concept he proposed before and began to think about how to achieve the goal technically. (End of this chapter) Chapter 1044 A whole new form of networking? Chapter 1044 A new network form? For technicians who can participate in the Air Police 2000 project, they may feel numb when faced with a lot of information at first, but now, Chang Haonan has divided the types of data that need to be processed into two major categories. Naturally, someone soon figured out the joint: "Mr. Chang, for the first category you mentioned, which requires time-sensitive data, it may be possible to use the UDP protocol in the Ethernet transport layer of the communication subsystem to achieve as much and as fast information transmission as possible. As for the second category, I think Just make certain improvements on the basis of the TCP protocol to make it adaptable to a mixed network medium of wired and wireless. ?This proposal quickly received some positive feedback: "I remember that a few years ago, some scholars proposed to set up a small relay station between wired and wireless transmission. The function is to simply copy the packets in both directions between connections. In this way, the first connection from the sender to the relay station appears. A transmission timeout causes the sender to slow down data transmission, and if a transmission timeout occurs on the second connection from the relay station to the receiver, retransmission is accelerated." ?However, some people have raised objections: But the UDP protocol is not reliable enough in principle. Is it really suitable for transmitting military information? But apart from that, there seems to be no better choice... For a time, the entire conference room fell into a heated debate, and no one could convince the other group of people in a short time. However, Chang Haonan did not join in immediately. Instead, he returned to his seat and took a leisurely sip of water ?With his current position, although he is not the person in charge of the Air Police 2000 project, as long as he makes a statement, there is a high probability that it will become the final decision. After all, the two chief engineers, Guo Lin and Liang Shaoxiu, have a close relationship with him. So, he is now gradually inclined to give some guidance, but does not express opinions immediately. At least give others space to fully communicate. ?However, before Chang Haonan could speak again, Guo Lin, who had been acting like a transparent person just now, stood up: "I think UDP is not a problem, because whether it is an early warning aircraft or a fighter jet, the transmission layer and control layer of their combat systems are separated. It is completely possible to use UDP protocol at the transport layer and then use it at the application layer. Return verification method to ensure the reliability of data. In any case, Guo Lin is literally the chief designer responsible for the Air Police 2000 airborne equipment. Hence, the surrounding area also became quiet. ??Guo Lin looked in the direction of Chang Haonan, and after confirming that the latter had no intention of adding anything, he continued: The problem still lies in TCP, how to optimize the performance of TCP for different network forms such as HF/VHF/UHF communication links and satellite communication links. A comrade did mention an idea just now. Im sorry I didnt notice who it was, but I guess this person is not from our Electronic Technology Group... Speaking of this, there was a slight smile in his tone; Because the communication method you mentioned does not actually conform to the semantics of TCP, it will be very complicated to implement at the engineering level..." On the other side of the conference room, someone showed a slightly embarrassed expression. ??He is indeed an engineer from the Haofei Group, and is not from the communications field. He only chose to express his position when he suddenly remembered a paper he had seen in the past. It turned out to be a bit of a joke. Fortunately, this is something outside the professional field, and no one cares too much about it. Since Guo Lins words had brought an end to the discussion, Chang Haonan no longer remained silent, but stood up again and returned to the front of the conference room: Actually... everyone has overestimated the difficulty of optimizing the TCP protocol. He tapped the blackboard lightly and said: "The relay platform we use, of course, does not refer to the relay between wired and wireless as the comrade just said, but the relay in the wireless communication process. In the future, it will be satellites, but in the current test, it is the stratosphere. Airship, this platform has passed the performance test. "Because of the use of brand-new network coding technology, extremely low bit error rates and delays can be guaranteed even in complex electromagnetic environments. Although I can''t say it is at the same level as wired networks, it is at least better than in the past...or existing ones. Wireless transmission technology is much more reliable. ?These words confused many people present - ??Isnt your old self the first person to say that the TCP protocol should be improved? Why are you now saying that we overestimated the difficulty of this matter? Facing a dozen confused faces, Chang Haonan did not show any concern. Instead, he erased the small triangles and circles he had just drawn on one side of the blackboard and filled in a new diagram. ? explained while drawing: Actually, the idea of ??setting up a relay point between wired and wireless transmission cannot be considered a problem. "Um?" ??Guo Lin was a little unable to hold himself tight immediately. ?He just swore to criticize others. If he found out that he was wrong in the end, all the boomerangs would hit his head. ?Chang Haonan deliberately paused for a while, and then turned around and added: Of course, Mr. Guos subsequent criticism is also correct. ? ??Guo Lin finally breathed a sigh of relief, and his blood pressure, which almost exploded, also dropped. We can add a probing agent to detect and cache TCP data segments sent to removable hosts, and the acknowledgment information returned. Chang Haonan drew a reverse dotted arrow on the part representing the wired data segment: "When the probing agent finds that a TCP data segment is stopped before the timer expires, but no acknowledgment is received from there, or a duplicate acknowledgment is received, it means that there is a problem with the wired part and the original data segment needs to be discarded Resend..."???"And if the response confirms that everything is normal, but there is still a transmission failure in the entire transmission, it means that the problem lies in the wireless part..." "The specific implementation strategy still needs some testing, but because the bit error rate is not high, the path MTU minus the header size of TCP and IP can generally obtain the best performance..." The improvement plan proposed by Chang Haonan is not complicated. It will only take a few weeks or at most one to two months to complete. It is basically software or some small-scale hardware-level measures that can be easily operated in the cabin. , will not even affect the final assembly progress of the Air Police 2000 prototype. As for the audience below, they looked at each other in confusion. Although no one said it directly, the expressions on their faces clearly showed the same meaning Thats it? ?When Guo Lin first discovered this problem, including when Chang Haonan led them into the lounge just now, the solemn atmosphere made people think that the entire Air Police 2000 project would be delayed because of this. Thats the result? And Chang Haonan naturally saw the psychology of everyone. So far, we have only solved the optimization of the TCP protocol for several traditional communication links, so it is indeed relatively simple. He took a step forward and said unhurriedly: But dont forget, the information command system I just mentioned... ?At this time, the doubts on everyone''s faces not only did not decrease, but actually increased. ?After a while, someone tentatively asked: But... doesnt the command system also rely on these types of communication links to issue orders? Not quite. Chang Haonan waved his hand: All the scenarios we are currently imagining have preset a center for the entire communication system, which is the early warning aircraft. Of course, it may also be a higher-level command headquarters, which is the same reason. "But in reality, for example, when troops are rapidly deploying and advancing on the battlefield, the communication center cannot move forward simultaneously with the front-line units due to safety or tactical considerations. In this case, the mobile network with a center cannot meet the needs. , but we need a new communication link that can quickly, temporarily, and automatically form a network..." Distributed communication? Soon, someone threw out keywords. "Yes." Chang Haonan affirmed: Thanks to our newly developed relay technology, wireless communications can also perform multi-hop forwarding with low loss and low delay. Therefore, we can use this advantage to design a new form of communication network. When he said "brand new", there were already several obvious inhaling sounds coming from below. ?No one thought that Mr. Chang was actually planning to play such a big game So far, the cornerstones of modern human communication technology, such as network structures and communication protocols, are still built by developed countries. ?For the sake of standardization and globalization, China has also chosen to adopt most of its contents. After all, it is a process of making wheels. It will probably take a few more years to challenge the first-mover countries in this regard. But obviously, Chang Haonan no longer wants to wait. Hence, he is ready to first test the waters in the military field that does not pursue global integration. ?Chang Haonan gave everyone a few seconds to recover from the shock. Then, lets get to the real meat and potatoes: In addition to multi-hop forwarding, this network should also have the following characteristics. First, there is no center. All nodes have equal status in the system. It is a peer-to-peer network. Any node can join and leave the network at any time, and even a failure will not affect the operation of the entire network. "The second is self-organization. The layout or expansion of the network does not need to rely on any preset network facilities. The nodes coordinate their own behaviors through layered protocols and distributed algorithms. After the nodes are powered on, they can quickly and automatically form an independent network. network." The third is dynamic topology. Due to application background considerations, network nodes may move anywhere at any time, and may be powered on and off at any time. These will cause changes in the topology of the network, but the network itself must ensure smooth operation. Therefore, such a communication network is not only significantly different from ordinary cellular mobile communication networks and fixed communication networks in terms of architecture and network organization, but also requires corresponding adaptation of communication protocols. ?He returned to his seat, took a deep breath, and looked around: This is the most important and most difficult task in the next TCP optimization! (End of this chapter) Chapter 1045 The worlds most powerful early warning aircraft! Chapter 1045 The worlds most powerful early warning aircraft! 2003 is indeed a special year. What happened in the previous life was repeated exactly on this timeline. Fortunately, today''s Chang Haonan is not a student who can''t help himself. In order to avoid possible risks, he simply stayed in Haojing after going back to do an annual work report in early January. ?Of course, there must be another explanation for this on the surface - The first is to follow up on the research and development of the Air Police 2000 airborne data system, and the second is to some extent... Avoid suspicion. This is what Zhu Linyu reminded him. After winning the Philippine Prize at the end of 2002, Chang Haonan, who holds one international award and three major national science and technology awards at the same time, was enough to ignore the age issue and was included in the 2003 academician selection. ?It is said that he is included in the selection, but in fact anyone with a discerning eye can see that the results in his hands and the relationship behind them are too hard, and there is almost no possibility of losing the selection. ?On the nomination and recommendation letter alone, more than a dozen big names including but not limited to Du Yishan, Ding Gaoheng, Song Jian, Liu Zhenxiang, Li Jie, Wu Wenjun and even Qian Lao signed at the end. In fact, many people included Chang Haonan as a nominee in the 2002 National Top Science and Technology Award selection. Even ranked second in the entire list. ?Only in the final decision-making process, the superiors only approved academician Jin Yilian, who pioneered the Chinese supercomputer industry. Mainly considering that the nature of this award when it was established was closer to the Lifetime Achievement Award. Giving a lifetime achievement award to a person who is less than twenty-seven years old... Other peoples careers have just begun. How can you sum up their lifelong achievements in this way? It will inevitably give people a bad sense of dj vu It is more reasonable to wait until you leave the front-line research position. In short, unlike most people who need to move around frequently during the critical stage of selection, what Chang Haonan needs to do is to stay away from the capital as much as possible at this time. Lest anyone engage in performance art. ??For example, jumping out and exclaiming that Xue valve is invincible. ?Perhaps this label is a bit strange to put on the head of a person of this age. ?But its not surprising that strange things happened to Chang Haonan. After all, being an academician under the age of 30 is an extremely unconventional thing. ??Although this kind of clown is unlikely to affect the final selection result, as the first in the entire aerospace power group, at least the first academician, Zhu Linyu still hopes to minimize such troubles at the level of public opinion. ? And this just suited Chang Haonans wishes, so he followed the trend and plunged into the workshop of Haofei Group... In fact, by the end of 2002, most of the subsystems of Air Police 2000 were already ready, and the only ones that really needed to be tackled were the data link and air command system. ?Now, half Haofei, half Electrical Engineering 14, and Chang Haonan himself are all focused on Air Police 2000. Project progress is naturally not a problem. What''s more, Chang Haonan also adopted a hardware-first development strategy to minimize the impact on the final assembly schedule. Finally, with the hard work of multiple units and thousands of people. On February 15, 2003, Air Police 2000 left the apron for the first time completely relying on its own power and drove slowly along the taxiway to the waiting area... ?This is certainly not the first time it has been in this position Prior to this, the prototype aircraft numbered 2000-01 had completed four taxiing experiments. Even in the last test two days ago, it had reached a speed of 120 knots and achieved a smooth wheelie. Prove that the aerodynamic design, especially the center of gravity and directional stability, has no major flaws. But today is especially special. Because Air Police 2000 will truly fly into the sky for the first time. ?In the flight control room of the tower, dozens of eyes were fixed on the aircraft in the distance. Even for a "veteran" like Chang Haonan, although he has already gone through the entire development process of multiple models and has confirmed all the test results before Air Police 2000, he still has to face the first flight of such a key model. , it is unrealistic to say that there is no psychological pressure at all. Not to mention Liang Shaoxiu, who is fully responsible for the first time as the model manager. After all, as long as it is a project, there will be hidden dangers. And Gods project will maximize the consequences of hidden dangers As time passed by, the No. 2000-01 aircraft continued to get smaller and smaller in everyone''s field of vision, and finally stopped at the end of the takeoff runway. Compared with the model of the same name that was modified from the IL-76 in the previous Ring Project program, the aircraft is almost one-third smaller, and the size of the radome is also smaller. At first glance, it appears that It does lack the visual impact from a large platform. However, thanks to the back-to-back straight antenna design, the array size and the number of T/R elements have not been reduced. Coupled with China''s own progress in the field of electronic technology over the years, the effective detection range of this radar far exceeds that of all competitors around the world during the same period. Among them, naturally, it also includes the Falcon system that China once couldn''t get. Unit 01 report! ??The calm voice of test pilot Lin Hai came over the radio. ?It has been almost 7 years since Chang Haonan first participated in the project. The group of test pilots active in the mid-to-late 1990s have basically retired beyond their age. Lin Hai is the leader among the new generation. ?Compared to everyone in the tower, he did not show much nervousness when facing the risk: We have arrived at the take-off area, all flight-related subsystems are running well, the engine speed and rudder feedback have been detected and confirmed to be correct, request to take off! The verification subjects for the first flight only cover basic flight performance and do not include the function of the mission payload. In fact, the command system designed by Chang Haonan is still in the process of software debugging, and it will take some time to be installed on the aircraft. Permitted to take off, and I wish you all the best on the first flight! Even the flight controllers voice fluctuated slightly. Since the flight test institute is located here, Yan Liangs tower has witnessed too many test flights and finalizations. But there are actually not many models that actually made their first flight. ?Hence, if you only listen to the voices on both sides, you might think that Lin Hai is the one who stayed on the ground... Copy that! Get ready to take off! ? Lin Hai''s reply came immediately over the radio, and the No. 01 aircraft slowly began to accelerate on the runway. Compared to a tactical aircraft of more than ten tons, the Air Police 2000''s taxiing time before takeoff is very long. And this is one of the most worrying processes in the entire test flight It is impossible to completely eliminate the downwash effect of the radome on the horizontal tail, and whether it is numerical calculation or wind tunnel testing, the simulation of this complex effect can only be limited to flight under certain conditions. But when taking off and landing, the biggest risk is uncertainty. ?Hence, every angle change of the horizontal tail hits everyones heart like a heavy hammer. So much so that in the end, everyones heartbeats were somewhat affected by the rhythm of the flat tail. When approaching the middle of the 3,600-meter runway, aircraft No. 01 finally raised its front wheels. The aircraft had actually already exceeded the minimum take-off speed, so the rear wheels also overcame gravity and left the ground lightly. Only the scorching heat waves emitted by the two engines were left, washing over the early morning runway... ? For the first flight, as long as it can take off smoothly, saying 80% may be a bit excessive, but saying less is half the battle. The remaining half is basically focused on landing. Fortunately, the whole process was smooth sailing without any surprises. ?According to feedback from pilots, after optimizing the cross-sectional shape, the negative impact of the radome on flight quality is mainly concentrated on directional stability and reduced flexibility in pitch control. This is not an unacceptable problem for a large aircraft that spends most of its time flying smoothly behind the battle lines. Not bad, very good. Chang Haonan put down the telescope and shifted his gaze from Unit 01, which had landed smoothly, to Liang Shaoxiu next to him: At least at a qualitative level, it is very consistent with the simulation results before your design. As for the difference in control rates, it depends on the analysis after recovering the data As an "old-timer" who led the latter on projects many years ago, this evaluation is basically equivalent to - Its time to leave. Liang Shaoxiu also breathed a sigh of relief and raised his hand to wipe the sweat from his forehead. Looks like he wants to say something. But I couldnt say it in the end. Just held Chang Haonan''s hand tightly. And a little further away. Project chief engineer Wang Xiaomo came to Qiao Chenqing, the head of the Air Force, and said what he had wanted to say for a long time but had been holding back until now because he did not want to open the champagne in advance: Commander Qiao, I can now confidently assure you that this is the most comprehensive early warning aircraft in the world, bar none! (End of this chapter) Chapter 1046 Anti-stealth capability Chapter 1046 Anti-stealth ability Originally, as the plane landed safely, a burst of cheers naturally erupted from the tower. Except for some command posts who must stay at their posts, most people are ready to go downstairs to welcome the test flight team in triumph. ??But with Wang Xiaomos resounding words, the originally noisy hall fell silent almost instantly The strongest in the world, bar none! It can be summed up in just eight words, but it is enough for everyone to remember for a long time... Even after half a lifetime. In recent years, China has indeed made significant improvements in many fields. But after all, the starting point is too low, and it will take a relatively long process to implement the technology into the project. Therefore, although some achievements have reached the world-leading level, when it comes to products, even the top models such as the Turbofan 10 or the J-10 and J-11 can only be regarded as "reaching the world-leading level." It means to be on par with others. It is true that for China, which only finalized the mass production of the J-7E ten years ago, it is already a huge leap to share the title of "world leader" with others. But after all, it is still not as simple and straightforward as it is today. ?The saying Its pointless to compare with others, if you want to surpass the United States, surpass the United States! The words are still ringing in my ears, and now they have been realized in advance in the aviation system. Not only that, the data link and air command system developed by Chang Haonan have also completely made up for the shortcomings of the Air Police 2000 model... ??If there is anything that is a pity, it would be that due to time constraints, we were unable to use the optically controlled phased array system that is currently being tested in full swing... For this, we can only wait for the next generation of early warning aircraft. Opposite Wang Xiaomo, Qiao Chenqing, who came to inspect the first flight, was also shocked for a moment by the former''s determination: The early warning aircraft with the strongest comprehensive performance ? He ??muttered it softly, then turned his head again and looked at aircraft No. 2000-01, which had completed deceleration and was slowly driving towards the taxiway entrance on the runway. It can be said that soldiers of Qiao Chenqings generation have spent most of their lives thinking about how to defeat the weak with the strong. In the middle years when conditions were the most difficult, what was even considered was how to use the J-6 with only cannons to fight against third-generation aircraft. ?Once upon a time, even "missileization" seemed like a distant dream. ?Now I suddenly got a piece of equipment that is stronger than all the imaginary enemies... For a while, it even made people feel a little at a loss. I remember when the project was established, the effective detection range was 450km? ?Given Qiao Chenqing''s position, it is not suitable for him to act too pretentious at this time. So I had to shift the topic to the technical level. That numberis actually not that important. ?Wang Xiaomo explained as he walked out the door: "You know, in actual combat, the target''s relative height, orientation, RCS, movement trend... these will affect the detection effect of the radar, and our Air Police 2000 uses a phased array system, plus dual-sided C-band and L-band The formation can basically deal with all different kinds of targets to the maximum extent. Even for stealth aircraft, because the focus of optimization is the X-band, it will be easier to detect when faced with relatively low-frequency radars such as the L-band. This point can be said to have hit the key point that Qiao Chenqing is most concerned about. At this time in 2003, the test flight of YF22 has entered the final stage. As a model that was developed at the end of the Cold War, the ATF has not been stained with many of the bad habits of procrastination in U.S. military projects since the 1990s. Anyone with a discerning eye can see that F22 will be officially mass-produced in two to three years at most. By then, the Chinese Air Force, which has just acquired the third-generation fighter jets for a few years, will once again be caught in a generation gap with its opponents. Although the purchase volume of F22 has been cut again and again, it has been reduced from the initial four-digit estimate to about 200 today. But stealth aircraft, after all, still have a qualitative difference. The B2 shot down in the Balkans a few years ago may have symbolized the end of stealth aircraft in the eyes of outsiders. But those who know the inside story will know how many extreme coincidences and new technologies are behind that result. On the contrary, it proves the value of stealth aircraft. So, when he heard Wang Xiaomo talk about anti-stealth, Qiao Chenqing almost couldn''t walk immediately: That means that even if the American F22 officially enters service, we will still have a way to deal with it? ?This question is not easy to answer. So much so that the former hesitated: "Hmm... If we only rely on a single method, there will still be hidden dangers when facing stealth aircraft. At least the L-band detection accuracy is not enough, and due to the limitation of the physical size of the antenna, it is difficult to install it on a fighter jet. It is best to implement multi-platform, Composite reconnaissance with multiple detection sources is exactly the area where data links can play a role..." At this time, Chang Haonan, who was walking beside but never spoke, also added: "And to take a step back, even if we can detect stealth aircraft with existing technology, stealth is only one of the many advantages of fourth-generation fighters... You should have seen that when third-generation fighters face second-generation fighters, The same principle applies to all-round advantages. Anti-stealth technology can only narrow the advantage, but if we want to truly fight against fourth-generation fighters, we can only equip ourselves with fourth-generation fighters. We are also equipped with fourth-generation aircraft ?? Qiao Chenqing put his hands behind his back and looked deeply to the horizon with his eyes, as if he was imagining that a fourth-generation fighter jet with the August 1st military emblem was flying there. ?As a political worker, he was able to act as commander of the Air Force largely due to the sudden deterioration of his predecessor Liu Yaoshun''s physical condition. Taking into account the age factor, it is likely that he will be relegated to the second line in a few years. Therefore, Qiao Chenqing felt that there was a high probability that he would not be able to see the day when China''s fourth-generation aircraft entered service while in office... The successful first flight is just the beginning of a long testing phase. As the saying goes, the first flight is difficult, and finalization is even more difficult. Since the gap between the Air Police 2000 and the Air Police 200 in aerodynamic structure and airborne equipment is too large, it is difficult to refer to the relevant experience in the development process of the latter. Many things need to be started over. The most special one is naturally the command system that Chang Haonan is responsible for developing. This is also the most essential difference between Air Police 200 and Air Police 2000 The former only moves a radar to the sky. Specific combat command and decision-making still need to be completed by ground command posts or front-line fighter jets. ?The latter is a true air force operations center that integrates multiple functions such as reconnaissance, command, control, and communications. There is also a huge difference in levels between the two. ?In actual combat, the Air Police 200 only needs one officer at the level of major or lieutenant colonel to be responsible for uploading and distributing information. However, Air Police 2000 may require a division-level commander to ensure that he has the highest authority in the entire airspace. Therefore, while the Haofei Group was conducting high-density test flights of the aircraft itself, the team led by Chang Haonan also completed the software design of the airborne command system as quickly as possible. In terms of steps, there is not much difference between software projects and hardware projects. It should also be divided into principle verification, technical verification, engineering verification... and other processes. ??The only difference may be that due to the reproducible nature of the code, there is no need for an additional production finalization. The current command system is in the process of transitioning from principle verification to technical verification. In order to realize this process as quickly as possible, Chang Haonan reduced the number of available nodes in the system from the maximum 200 in the finished software plan to 20 without changing the underlying logic of the software to speed up the development progress Anyway, this round is just a technical verification and does not require a complete restoration of the actual situation. 20 goals are not enough. ? Thanks to this simplification, just twenty days after the first flight, the Air Police 2000 command system was installed on the prototype in the form of an Alpha test version. This also means that this model is truly functionally complete. ?Then the next step is naturally to conduct tests at the airborne equipment level with combat aircraft... (End of this chapter) Chapter 1047 A new form of air combat! Chapter 1047 A new form of air combat! 2003, March 6. Hao Jing, Yan Liang. The weather is fine. For an airport like Yanliang, which mainly caters to aircraft manufacturers and flight test institutes, it is rare to see such a "spectacular" scene. After all, even if multiple models are tested here, considering the command department''s ability to bear it, there will almost never be multiple aircraft taking off at the same time. But today, the situation is completely different. On the tarmac, dozens of support vehicles and hundreds of ground crews are busy conducting various inspections and preparations for takeoff for more than a dozen aircraft of different models. ? In addition to the most conspicuous Air Police 2000, there are also 4 J-11B/BS, 4 J-10A/AS and 3 J-7A. ?At the current production rate of China''s military aircraft, this is almost all the new aircraft delivered in the past half year from August last year to now. Without exception, all are equipped with data link receiving antennas during production, so they can be incorporated into the command system of the early warning aircraft. As for those produced earlier... ?There is no other way, we can only wait for the mid-term return to the factory and install it again. As for those older models earlier than the J-8C, they are limited by the basic hardware level and there is no possibility of carrying out this transformation. Obviously, these eleven aircraft will serve as "friendly forces" in today''s test flight to test the communication, control and command capabilities of Air Police 2000. ?At 10 o''clock in the morning, following the flight commander''s order, the first Air Police 2000 aircraft slowly slid out from the apron and came to the waiting area to prepare for takeoff. Since the climb rate and speed of large aircraft are low, and the wake turbulence during takeoff may affect subsequent aircraft, for efficiency reasons, the other 11 fighter jets will take off 15 minutes later. On the other side, Chang Haonan and others did not wait at the control center of the tower to watch the test flight as usual. Instead, it appeared next to a communications vehicle on an SX2190 chassis. Since there are already data links and relay communication airships, adding a ground terminal to the 11 aircraft to check the situation is also a matter of help. ?As a result, Chang Haonan, Wang Xiaomo and others became the first lucky ones in China to directly witness the information-based air combat... Half an hour later, 12 aircraft completed their assembly in four scheduled airspaces In order to test the effective range of data link relay communications to the maximum extent, three types of combat aircraft were arranged in three airspaces about 80-100 kilometers apart. ? Among them, the J-10 and J-11 each flew in the same direction at an altitude of 8,000 meters, roughly forming a straight wall in the air to simulate the interception of air targets in an entire area. The JH-7 cuts in from another direction below 1,500 meters, simulating ground attack aircraft operating at low altitudes and interfering with ground targets on the battlefield. As for the command post, Air Police 2000 is hovering alone about 120 kilometers away from the first three. Considering that the AIM120B that our army mainly faces only has a range of about 70 kilometers and the no-escape zone is even shorter, this position can basically ensure the safety of the early warning aircraft itself. ?Of course, in actual combat, early warning aircraft, as high-value targets, will also have their own dedicated **** fleet. ?? But this is a test after all, not an exercise, and the Chinese Air Force currently has only 11 fighters equipped with data links, so it is not wasted on simulated escorts... The targets that the early warning aircraft will detect are a group of J-7B fighter jets taking off from an airport in the northwest ?Although its own performance has fallen behind, thanks to its clean and simple appearance, the RCS of the MiG-21/J-7 is not too large when mounted without wings. Comparing to a drone whose target features are too small, the corner reflector is too obvious, and cannot fly too high or too fast, sometimes it is a better test object. ?Chang Haonan even thought about whether to refer to the American QF4 and QF16 target drones in the future and convert a batch of retired J-7s into professional unmanned target drones. ?This can even be used for live-fire testing... In short, for a mechanical scanning radar with the technical level of the 1473/1493 in the 1990s, it may have to be 150 kilometers away from the target, or even closer, to stably detect the two J-7 twin formations attacking from the opposite direction. ?This distance is naturally enough for firing medium-range projectiles, but it is too short if you want to control the overall situation in advance. Furthermore, the scanning range of the nose radar is also very limited, and is only effective within a cone-shaped area of ??approximately 40-60 directly ahead of the heading. ?For example now, the two four-machine formations at the front are facing exactly this situation. Because before taking off, they did not receive the specific direction information of the target''s incoming target, and they are currently only searching generally towards the west. ?In the cockpit of one of the J-10s, the lead pilot Xu Wenzhao was scanning the left and right sides of the aircraft. Even though he knew that those MiG-21s could not penetrate within his visual range, as a Chinese pilot, he was used to fighting alone or with several aircraft of the same type. In this case, detection blind spots are simply impossible to avoid. Hence, always paying attention to the situation around him has become a habit engraved in his bones. ??If the flight plan does not allow it, he will even roll every once in a while to observe the blind spots below and behind the aircraft. As for the big guy following behind, of course he knew he was very powerful in theory, but he didnt have any particularly practical feeling. Qinling Squadron, report their respective situations! ?Xu Wenzhao said habitually into the radio. ?During this test, the HF radio station used for long-distance calls was strictly required to only receive and not transmit, so it was unable to communicate with the early warning aircraft or the other two fighter groups. However, in order to ensure basic flight safety, UHF radio stations used for short distances are still fully usable. Soon, the deputy squadron leader and two wingmen responded respectively, but no target was found. This result was not what Xu Wenzhao expected. After all, if four planes line up and point in the same direction, the radar search ranges are actually not much different. ?This made him feel a little awkward. I even wanted to direct my four aircraft to fan out to cover a range of about 180 in the northwest direction. ?Of course, this is expressly not allowed in the flight plan. Squadron leader, we have been in the mission airspace for more than ten minutes, and we havent even detected the shadow of the target... ??The voice of wingman weapons control officer Duan Su Hao came from the radio: Is it possible that the early warning aircraft has detected the target, but because the high-frequency radio is turned off, it cannot notify us? As the useless backseat ballast on this flight, he had reason to be bored. ?Xu Wenzhao lowered his head and glanced at the multi-function display. ?There is no target appearing on it. Before takeoff, the technical staff said that the targets detected by the early warning aircraft will be directly shared with our aircraft..." He did not give a direct answer, but went around in a circle. ?However, Duan Suhao still felt something was wrong: But if this is the case, even if the target has not entered the detection range, at least the 11 aircraft on our side should be able to display it... But there is nothing now? ?This question made the four pilots feel their hearts sinking. Because they have to constantly pay attention to the flight situation, they dont have much time to think about these things. ??However, after being reminded by Duan Suhao, they all felt that what he said seemed to make sense. ??If the data link is really that magical, it should at least let us know where the friendly forces are, right? ?But now there is nothing on the multi-function display... Actually, what they dont know is that this is part of the test itself In order to obtain data from the experimental group and the control group at the same time during a test flight, the data link and command system will be turned off by default and will not be remotely activated until a specific time during the flight. Just right. This "specific time" is now. Just when Xu Wenzhao raised his head and was about to say something again, Duan Suhao''s excited voice suddenly came: Report to the squadron leader, the monitor is responding! ?The former lowered his head subconsciously and found that a dozen symbols of different shapes appeared slightly abruptly on the multi-function display that was empty just now. Almost instantly, he judged the meanings of those symbols. A hollow diamond shape, undoubtedly representing an early warning aircraft. Four solid dots and four triangles represent two different types of friendly fighters. ?Three hollow inverted triangles, the height displayed after selection is only 2300, indicating that they are the three JH-7A. ?Then, the remaining four T-shaped marks flying at high speed on the side of their formation are undoubtedly... My formation is in the direction of 270, 200km, two batches, four targets! He shouted over the radio almost instinctively. Then prepare to assign interception missions to the four aircraft of this squadron. ?However, even before he could say his next sentence, the information on the multi-function display increased again Eight dotted lines appear between eight friendly fighters and four "enemy planes". If you look carefully, you will find that there are exactly two lines corresponding to each enemy aircraft. ??Moreover, they are all the closest. Xu Wenzhaos order was stuck in his throat ?He suddenly realized that even the first sentence he just shouted could only serve as an emphasis, not a command. Because the information on the display is far more accurate than what he conveys by voice. As for the more complex command commands, there is no chance to even shout them out... Although his whole body was wrapped in a thick flight suit, Xu Wenzhao still felt a chill down his spine at this moment It is completely a dimensionality reduction attack! Dont mention that there are four J-7s on the opposite side. Even if the same model and number of fighter jets and early warning aircraft are used, the efficiency and accuracy of the traditional command method will still be overwhelmed by this new combat form... (End of this chapter) Chapter 1048 Do you want A to shoot and B to guide? Chapter 1048 Do you want A to shoot and B to guide? ?At almost the same time the fighter group received early warning and command information. Yanliang Airport. Chang Haonan and others who were waiting for the test situation near the relay communication vehicle also saw an almost identical picture on the screen of their laptop. The reason why I say almost is because the color gamut of the multi-function displays of fighter jets in this era is very narrow, so for things such as radar information charts that are simple and easy to understand, they will simply be made in monochrome. But the conditions of the early warning aircraft and the ground terminal are much better, and at least normal LCD monitors can be guaranteed. So some colorful parts will be added. For example, friends and foes can be distinguished by color, not just the shape of the target mark. Coupled with the larger screen size, the viewing experience is excellent. Even if you dont have any experience in air combat, you can understand the basic situation of the entire mission airspace in a short period of time. As for the four "enemy planes" that were waiting for opportunities to carry out sneak attacks by relying on the blind spots of the fighter jets'' radars, they seemed to be thieves trying to get close to the fire to steal something in the dark. His intentions were immediately exposed to everyones view. Hungry thief ?Behind Chang Haonan, someone was even so shocked that he uttered a phrase in Qin Province dialect expressing surprise. Although the former had roughly explained the functions and operating logic of this system during the test task meeting a few hours ago, if you have not fully participated in the entire development process, it is actually difficult to form an intuitive understanding just by listening. ?Hence, the shocking scene on the screen hit everyone like a heavy hammer almost without any preparation. It is no exaggeration to say that my mind is buzzing. Qiao Chenqing, who came here for the second time in a month, bent over and looked around, wishing he could get into the computer. ?After a while, he stood up straight again: The Art of War says, if you know yourself and your enemy, you will never lose a hundred battles. In ancient times... let alone ancient times, even in modern times, knowing yourself and your enemy is something that only the top military strategists can do..." ?He put his hands behind his back and said with some emotion: "But now...any commander who has undergone standardized military training seems to have such an ability..." ??A slightly younger school-level officer next to him used a more concrete description: Isnt this... almost the same as a video game? You can directly see the deployment of your own and the opponents troops on the computer, then issue command orders through the computer, and finally receive feedback on the battle situation..." It can be said that everyone realized the great value of this command system in an instant. ?This even completely exceeded Chang Haonans prior expectations ?The reason why he organized such a "live broadcast" activity was mainly because he was worried that the test effect would not be reflected and that the Air Force leaders might not be able to realize the importance of this information system. But judging from the results in front of us... It works very well. Even, a little too good. So much so that Chang Haonan felt that he needed to cool everyone down... It is true that informatization is a good thing, but it is not a panacea in the face of rapidly changing and highly uncertain actual situations. In a complex system, the weakest and most reliable part are people. Let leaders take the lead now, but it is likely to have the opposite effect when they face reality later. So, taking advantage of a gap where no one was talking, he quickly reminded: Everyone, what we are currently simulating is just a relatively simple air situation. The number of enemies and ourselves is relatively small, and the opponents target is an aerial target that is easily detected, so the effect is so intuitive..." "But in actual situations, there may be countless air and ground targets in a battlefield area, and it is difficult to obtain them all through a single reconnaissance method. Moreover, the opponent cannot sit still and will always use some technical or tactical means. To interfere with our battlefield intelligence acquisition process..." Chang Haonans original intention is actually to let everyone view new technologies rationally and not to have expectations that exceed reality. ?However, Qiao Chenqing is obviously wrong... He immediately interrupted the former: Comrade Haonan, I understand what you mean. "Early warning aircraft alone are not enough. We also need more other reconnaissance platforms, such as... battlefield surveillance aircraft like the E8, which are mainly used for ground surveillance, and reconnaissance aircraft like the RC135. In the future, we can also consider using the army and navy , and other reconnaissance platforms in space are also included..." "But you also know that the country is still in a critical stage of economic construction, and the military is also in difficulty. The annual equipment construction costs are really limited, and it is impossible to launch so many projects at the same time... But I promise you that I will do my best to support R&D and production of new equipment After making the promise, Chang Haonan was a little confused about how to answer the question. After all, he really didnt think that his two casual words could have such an effect... ?However, at least the original goal was achieved. And supporting the research, development and production of new equipment is not a bad thing. So, Chang Haonan finally thought about it and did not continue to get entangled in these minutiae. While the two were talking, the situation in the air had also changed dramatically. ??The eight aircraft that were originally searching due west followed the interception mission assigned by the early warning aircraft and accurately turned to a position slightly ahead of the target route As long as the headings of both parties remain unchanged, this can achieve a higher approach rate than flying directly at the target. In order to delay the time when the target radar warning system is triggered, the radars of the eight fighter jets are always maintained in a search mode with a lower scanning frequency. In fact, for a fighter jet of the J-7B level, its RWR is simply unable to respond to the locking of modern radars. But its a simulation test. Just as the Army next door uses the 59 to simulate the M1A2, the J-7B is not necessarily the J-7B. Can be regarded as F16. What a pityour fighter jets are still using mechanical scanning radars, and the warm-up and start-up time is too long ?Chang Haonan looked at the screen and sighed softly: If it is a phased array radar, you can even turn off the radar directly at this stage and turn it on temporarily before locking, so that the concealment can be improved to a higher level. ?His aggressive thinking made many people around him feel a little nervous. Although China has put into service AESA shipborne radars and early warning aircraft radars, due to cost, process and volume constraints, airborne AESAs suitable for fighter jets are still under development. And the Air Force is now quite satisfied with the performance of the 147X series radars... If the other party also has an early warning aircraft, in fact, this concealment may not be very important. Soon someone said with relief: If you really want me to say it, its a pity that the missiles range is not enough Look just now, when the fighter jet was more than 200 kilometers away from the target, it had already obtained the target position through the data link, but in the end it was safer to fly about 50 kilometers to launch the attack..." Its not entirely about missiles. Another person followed up: "The Thunderbolt 13, which was trial-installed in small batches last year, can theoretically hit about 160-180 kilometers in anti-air mode. But even if the missile can hit 200 kilometers, the fighter radar cannot lock on to the J-7 at such a long distance. No matter how big or small the target is, you still have to wait until it flies within 100 kilometers..." So I think what Mr. Chang just said makes sense. If the problem of fire control radar is not solved, the benefits of just extending the missile range will be very low..." As the test situation gradually became clearer, the topics discussed became more divergent... Soon, someone came up with a great idea: "Speaking of which...since the AWACS can already send the detected target information to the fighter jets and us, can we go one step further?" "That is to let the fighter jets hide in the distance to launch missiles. After the attack, they are handed over to the early warning aircraft for guidance. They approach the target about 10 kilometers and then switch to the missile''s own active radar to lock the target. This can completely increase the theoretical allowable range of the air-to-air missile. At the level of 400-500 kilometers, it can also circumvent the requirements for the performance of fighter fire control radars..." O Cough cough cough ?Chang Haonan was drinking water next to him, but after hearing this, he squirted out. ?He is very familiar with this idea. A shoots and B guides. The idea of ??still being stuck on PPT twenty years later. Only conducted a few incomplete tests... It belongs to let yourself go. The people nearby did not care to continue the discussion at this time, and quickly helped Chang Haonan, who was choking on water, to sit next to him. Then what Chang Haonan, who finally recovered, put the water bottle aside and replied helplessly: I think we should consider using AESA for fighter jets. This is much simpler than guiding air-to-air missiles by an early warning aircraft... (End of this chapter) Chapter 1049 New tactics pilot unit Chapter 1049 New Tactics Pilot Unit ?Chang Haonan''s reaction immediately aroused some confusion. After all, A-to-B guidance is not a new concept. In fact, the use of airborne radar to relay and guide anti-ship missiles launched by warships or submarines has become one of the very mature tactics of the Red Navy in the late 1970s. ?Although that was indeed the peak stage of the other country, in terms of communication technology alone, there is no reason that China in the early 21st century should be inferior to the Soviet Union more than 20 years ago. ?So it took Chang Haonan about twenty minutes to finally explain why this "A-shooter and B-guide" was very difficult to implement. The main reason is that the nature of the goals is too different. Surface ships are generally 200-300 meters long, have a maximum speed of no more than 30 knots, and can only move on a two-dimensional plane. Planes generally have a wingspan and length of about 20 meters, can reach speeds of 600 knots or faster, and can move around in three-dimensional space. The latters requirements for target refresh rate and communication delay are far more than 20 times that of the former. Similarly, the two processes of searching and locking have very different requirements for the target refresh rate. Hence, providing guidance for an air-to-air missile may occupy a bandwidth that is two orders of magnitude larger than guiding an anti-ship missile, or sharing target information with friendly aircraft. With the communication technology at the beginning of the 21st century, it is far from having the luxury to allocate precious data link bandwidth to such usage needs. ?In addition, in terms of hardware, each missile first needs to be equipped with an airborne two-way data link of the same level as the aircraft. The resulting cost issues can be imagined. Even if you exclude the factor of money, the size of a complete antenna and processing system at the beginning of the 21st century is quite large. For an airplane, of course, it can be inserted wherever you want. But on an air-to-air missile where every inch of space is extremely valuable, it is actually not easy to leave a large enough space. To take a step back, the C-band radar of the early warning aircraft was not designed for fire control. Its accuracy is limited and it is not enough to guide the air-to-air bombs to a close enough position. Let alone the L-band on the other side. In short, if you only test it once or twice under ideal conditions, it may not be impossible to succeed. But if you want to use it in real combat... It can only be said that the future is promising. This result can only be said to be not unexpected. After all, less than an hour ago, China achieved data link communication between an early warning aircraft and a combat aircraft for the first time. Even centerless data sharing between two combat aircraft has not yet been tested. Its indeed a bit too early to want to do other fun things right now. ?However, the truth is the truth. Some feeling of pity is inevitable. Looking at the scene in front of him, Chang Haonan suddenly had an idea. After about half a minute of brainstorming, he roughly determined the feasibility of this new idea: Although under current conditions, it is still somewhat difficult to use early warning aircraft to guide air-to-air missiles, we may be able to change our thinking. Originally, everyone else had already looked at the computer screen again. As a result, his words drew everyone''s attention back. How to say? A senior staff officer asked curiously. If you use fighter jet radar to guide surface-to-air missiles... it will be much easier. ?Chang Haonan expressed his thoughts: "Because surface-to-air missiles, especially long-range surface-to-air missiles, are large enough, they can be relatively easily stuffed with some additional hardware equipment. You can even design a communication system specifically to be responsible for the communication between the aircraft and the missile without relying on a universal data link. information transmission, and the missile-borne guidance radar is also large enough to complete autonomous locking at a distance from the target, so there is not such a high demand for guidance accuracy and transmission delay..." "Of course, this is only from a technical perspective. The actual implementation of the project will not be that simple, and the most important thing is... the cost may be difficult to reduce." He said this, his original intention was just to comfort the people who just suffered. It''s just the Air Force leaders who are attacking, and they don''t really want to come up with any specific product. Because there is another issue that he did not mention. It is the range. At the beginning of the 21st century, the maximum range of surface-to-air missiles was only about 150km, and ground-to-air missiles were generally deployed far away from the contact line. After calculation, it was actually not much different from fighter jets launching their own missiles. When there are surface-to-air bombs with a range of 300km in the future, it will not be too late to consider this matter. ?However, Chang Haonan still clearly underestimated the desire of today''s PLA commanders and fighters to pursue new technologies and new tactics. And the level of trust in him. Sounds like quite useful? After a period of silence, the first comment was given to Chang Haonan. Unexpectedly, there are still people responding: "really" In this way, at least when facing a large number of low-altitude targets, the ground-guided troops can respond in advance, instead of just watching and functioning at the end..." Hearing this, Chang Haonan suddenly realized something - Due to the rapid development of China''s various technologies in recent years, my understanding of this era has been much slower than when I was first reborn. In any case, its only 2002. ? ?The new three attacks and three defenses are still a key issue that the Peoples Liberation Army needs to consider. Especially anti-cruise missiles. Compared with previous years, the pressure has not decreased, but has increased. ??Because after huge mistakes occurred in the Allied operations, the U.S. military also made urgent efforts to remedy the situation and quickly upgraded its military GPS terminals to the third generation in the following years. At least in a short period of time, the effect of electromagnetic interference will be reduced. ?In this context, the technology that allows surface-to-air missiles to overcome the curvature of the earth and attack low-altitude targets hundreds of kilometers away is obviously very attractive. After all, although Chinas air-to-air ammunition equipment has increased rapidly in recent years, it is still reserved according to the standards of normal air combat. ??If used to intercept a huge number of cruise missiles, it really seems a bit stretched... Comrade Haonan, do you have any research and development plans for this type of technology now? ?? Qiao Chenqing obviously felt that what came out of Chang Haonan''s mouth was probably being advanced quietly. It should be said that this situation did happen many times. But not this time. The latter quickly shook his head: It was just my idea, there is no research plan yet Then what if ?This time, Chang Haonan could guess what it meant without the other party finishing his sentence: "If there is a real need, we can develop it based on the existing data link technology and conduct a few test launches to see the situation. This matter is not difficult. Let the comrades of the Aerospace Science and Industry and the Electronic Science and Technology Group cooperate and it should be completed. " Its just that if we want to test it, it will involve aviation, ground guidance, radar and other units. Im afraid it will require special coordination from the Air Force..." Now almost half of the Air Force leadership stands next to Chang Haonan. Coordination, of course, is not a problem. But Qiao Chenqing obviously had other ideas. After lowering his head and thinking for a while, he turned to the staff officer beside him: Can we go one step further, use the current Dingxin training base as the backbone, and then include other arms besides aviation to build a long-term future-oriented pilot unit specifically for new technologies and new tactics? (End of this chapter) Chapter 1050 The whereabouts of seven aircraft carriers Chapter 1050 The whereabouts of seven aircraft carriers ?Although Dingxin Base has been called "Chinese version of Area 51" by outsiders, those who know the situation know that there are still many differences between the two. ??But if Qiao Chenqing''s idea comes true, then the name of China''s Area 51 may really be placed on the Dingxin Base. Including Chang Haonan, after a short period of thinking, he also realized that this matter could play a significant role in promoting the technological development of the Air Force and even China as a whole. If nothing else, it is obviously unrealistic to roll out the data link to the entire army in a short period of time for the data link that has just been tested. On the one hand, the cost of the Air Police 2000 itself is extremely high, and it may be difficult for the Air Force to purchase it in large quantities in the short term. On the other hand, it is also more important. This test was successfully achieved through data relay by several stratospheric airships. You know, Chang Haonan has been planning this matter since last summer. ?It took almost half a year to deploy several airships in place ?Although the airship is very stable when floating in the stratosphere, the process of floating up from the ground places high environmental requirements. It is not so easy to seize the time window. For a military operation that requires timing, half a year is still too long to prepare. ??But when it comes to high-throughput relay communication satellites operating in low orbits... Obviously it is not something that can be tinkered with in a year or two. ?However, as the saying goes, it is better to let people wait for equipment than to let equipment wait for people. A more realistic approach is to first use this pilot unit to study various new technologies and tactics under informationized conditions in the northwest Gobi, and then gradually promote them to the entire army. Once the communication constellation is completed, combat effectiveness can be immediately formed. And similar to this, there are actually many technologies that are feasible in principle, but are temporarily inconvenient to be promoted due to external conditions... For a moment, Chang Haonan wanted to stand up and express his support for Qiao Chenqing''s idea. But in the end, he still didnt speak. ?After all, this matter involves the sensitive issue of changes in the military establishment. As an outsider, it is really not easy for him to interfere casually. Fortunately, although there were some arguments among the people at the scene, they finally reached an agreement and were ready to choose a suitable opportunity to report to their superiors... At this time, the simulation test hundreds of kilometers away was finally completed. All four incoming targets were "shot down", and the entire process was under the control of the command system. It proves that the entire system designed by Chang Haonan fully technically meets the needs of refined and flat command in air combat. As for the next step, it is natural to expand the number of nodes allowed in the system to reach the 300 originally planned, and at the same time further optimize the newly developed centerless communication network so that the entire military, not just air nodes, can be included in the system in the future. within the entire chain of command. ?Of course, this is a long-term goal that spans more than ten years... ??At the same time that the data link and command system tests hosted by Chang Haonan were successfully carried out in the Northwest. Jingcheng, Tanzhou. National Remote Sensing Center. Dong dong dong Li Nianheng, the general manager of the remote sensing mission, was concentrating on his work when he heard a rapid knock on the door. He frowned when his train of thought was interrupted and raised his head irritably: "Come in!" ?As the office door was pushed open, a staff member with a National Oceanic Administration badge hurriedly walked in from the outside. After recognizing the person, Li Nianheng suppressed his depression in his heart. He Mingkun, a remote sensing engineer who was sold to the Space Administration by the State Oceanic Administration. The reason why I say "sell" is because considering the particularity and sensitivity of Haiyang 1, Wang Shuguang originally wanted to choose to be the hands-off manager and hand over the ownership of the entire satellite directly to the navy. But the proposal was rejected by Luan Wenjie. ?The reason is that the ownership transfer operation is too expensive. It is equivalent to directly stating that Haiyang-1 is a military satellite. Therefore, in order to avoid getting access to confidential information as much as possible, Wang Shuguang directly placed He Mingkun in the space agency on a "long-term secondment" and was responsible for all matters related to Ocean One as his natal family member. The meaning is obvious Ill leave the confidential matters to you. Dont spill the blood on others... For He Mingkun himself, this is actually not a good job. Mainly because after becoming addicted, everything you do will be affected, which is really inconvenient. But its not without its benefits.? ? ?His files are in the Oceanographic Bureau. ?Salaries are also paid by the Oceanographic Administration. But what we come into contact with every day are aerospace systems. ??This kind of person with a "clean background" is actually very popular with leaders... "What''s up?" ?Li Lianheng put down the pen in his hand and asked. Mr. Li, in this recent cycle, the frequency of Haiyang Ones return of valid data has increased significantly. He Mingkun put an information box on the table: Especially since yesterday, the satellite has even determined that more than 90% of the information is valid. In the end, it occupied three data transmission windows, and it was not until an hour ago that the complete content was transmitted back. This is the relevant report, please take a look. ?Hearing this situation, the remaining unhappiness in Li Lianheng''s heart dissipated instantly. He quickly pushed the half-approved documents on the table to the side and opened the information box. Since the Kitty Hawk''s track was accidentally photographed during the first test last year, Ocean One''s status has skyrocketed. ?Not only the National Space Administration and the Navy, but also higher-level leaders specifically inquired about the relevant situation when they came to inspect. After that, it often photographed some suspected targets. The recognition accuracy is about 70%. ?However, as a solar-orbiting satellite, Haiyang-1 will scan the entire earth''s surface in every complete cycle, so most of the information returned is of little practical significance to China. It only needs to be routinely recorded and compared with subsequent public reports to identify the subject. ?However, despite multiple reports in a short period of time, this situation has never occurred. After all, when the automatic screening program was designed, several typical aircraft carrier ports such as Norfolk and San Diego were specifically excluded from the information warning. In other words, even if the aircraft carrier is photographed in these places, it will not be judged as valid information... In the information box, there are more than a dozen reports that have been bound separately. Judging from the imaging time, they should have been captured within a dense window of about 20 hours. By the way, please contact Mr. Chang Haonan and inform him of the situation. ?Li Lianheng raised his head again and said to He Mingkun: As for the report He hesitated for a moment: "According to regulations, this cannot be copied. If Mr. Chang has time, you can ask him to take a look." He Mingkun replied: "Mr. Chang...should not be in the capital right now." "Um?" Li Lianheng was stunned: It seems that the Science and Technology Commission is about to be reorganized, and he is not in the capital The sentence ends abruptly at this point. Oh...I see. ?? Li Lianheng nodded with emotion and turned his attention to the document in his hand again, thinking that Mr. Changs academician hat should be a sure thing... ?However, before he had time to think about it, the contents of the report made his pupils tremble. After being stunned for more than ten seconds, he quickly opened the second report. Followed by the third and fourth copies... ?As usual, each report corresponds to an imaging range that captured a suspected aircraft carrier target. But something special. In several of the imaging ranges, there is more than one suspected target... Even, in the most picture, three appeared at the same time. Of course, since it is multiple imaging, some of them are obviously repeated. But even if these are excluded, the whereabouts of at least 7 aircraft carriers can be found Three of them are located in the Eastern Mediterranean. Two ships are located in the North Arabian Sea. One is located in the Persian Gulf. ?There is another ship in the western Indian Ocean. Judging from the direction of the wake, it is also on its way to the Gulf area... Obviously, the Americans are planning to do something in this area... (End of this chapter) Chapter 1051 To deal with aircraft carriers, mere discovery is not enough Chapter 1051: To deal with aircraft carriers, mere discovery is not enough As a technician in the aerospace field, Li Lianheng does not have a deep understanding of the navy. At best, I have heard some general information. For example, the U.S. Navy has a total of 12 aircraft carriers. a lot of. In terms of quantity, it occupies more than half of the world''s total. Not to mention the tonnage. But to be honest, just a number does not bring a strong intuitive feeling. ?But now. Seven of them were concentrated in two sea areas. ?Especially the three ships in the Eastern Mediterranean, which were photographed simultaneously by Ocean One during the formation. As for the surrounding "small boats" such as cruisers and destroyers, although they cannot be seen clearly due to the resolution, the wakes left after sailing are still vaguely discernible. He simply counted. ?Taken together, there are at least 20 ships. Even just looking at it from a satellite perspective made Li Lianheng feel a little numb. After calming down a little, the first thought that popped out of his mind was Are the Americans trying to cause trouble in the Balkans again? ?Li Lianheng subconsciously exclaimed. This judgment is quite logical for non-professionals. After all, it was only three years ago that the US military suffered its first major loss in the post-Cold War era in the Balkans. Not only did the Allied operations fail to achieve their goals, the stealth aircraft they relied on for deterrence were also defeated twice in a row. The second time, even the pilot was arrested. By comparison, Black Hawk Down in Mogadishu was nothing. ?Now, it seems reasonable to speculate that the US military, which has regained its confidence through the Aiwuhan War, wants to regain its position. ?However, He Mingkun obviously does not agree with this judgment: But there are four more ships in the Indian Ocean? Li Lianheng hesitated for a moment: "The positions of the four ships are actually very far apart...one is in the north, two are in the east, and one has just entered the Indian Ocean from the Atlantic Ocean..." Although he gave an explanation, his tone was obviously not as firm as before. He Mingkun felt a little persuaded... In short, the two of them remained speechless, each lost in thought. Fortunately, within a few minutes, an officer in navy uniform strode in. Even forgot to knock on the door. Mr. Li, Director He. ?He took off his military cap and put it under his arm, and said hello to the two of them: I just received a report that Haiyang 1 captured multiple targets that appeared to be aircraft carriers at the same time? The visitor''s name is Meng Dongchao, who is the liaison representative of the Naval Staff stationed at the National Remote Sensing Center. After all, Haiyang One still wears a civilian guise, and the focus is still on data accumulation and technical testing. Therefore, the Navy finally decided not to be responsible for the operation personally, and only sent a liaison office to be stationed here to be responsible for regularly summarizing and reporting the remote sensing situation. . Yes, this is a satellite picture, please take a look at it, Staff Officer Meng. Li Lianheng raised his head and handed several reports to the other party: After excluding repeated signals, based on different positions and headings, there should be 7 ships that can be identified, 3 in the Mediterranean and 4 in the Indian Ocean. As for the rest lets leave it to your professionals to judge! ?Originally, Li Lianheng felt that today''s affairs should almost be over here. As usual, the report is submitted to the Naval Staff, analyzed, and finally fed back. This process takes about one day After all, it is mainly about research, and there is no need to pursue timeliness. ? And in fact, most of the photos in the report were taken 18-24 hours ago. ?In this case, whether the reaction speed on the ground is faster or slower, it will not have much impact. There is no way, just a single satellite. There is no way to ask for more. As a result, as soon as Li Lianheng finished speaking, Meng Dongchao''s eyes suddenly flashed with light. 7 ships? ?The latter quickly took the report and read through it one by one quickly. Then, it seemed to become more exciting Seven ships...we were really left to find them! ??As he spoke, he raised his hand and flicked the report, making a crisp "pop-" sound. ?The other party''s reaction surprised Li Lianheng and Meng Dongchao. Compared with shock, its more like The speculations that had been made before have finally been verified. Staff Meng, did you know that the Americans had dispatched these aircraft carriers? ?Li Lianheng asked in a somewhat uncertain tone. ?Meng Dongchao put down the materials in his hands, but he could not suppress the raised corners of his mouth: Its not that early. He explained: "At the end of last month, superior units reported here that US military combat ships were gathering in the Mediterranean and Indian Ocean areas. Let us pay attention to the recent remote sensing results of Haiyang-1... But I am worried about the comrades at the space port. It brought unnecessary pressure, so I never said anything. Unexpectedly, less than a week later, the results have already come out... ?At this time, Li Lianheng''s curiosity was also aroused. He thought for a while and felt that since the matter had nothing to do with our military, it was probably not particularly sensitive: ?Hence, he expressed what he had just speculated: The Americans dont want to cause trouble in the Balkans again, do they? Unexpectedly, Meng Dongchao was immediately stunned: Balkans? Then he suddenly realized it and replied with a smile: Although the Eastern Mediterranean is indeed very lively, it has nothing to do with the Balkans. The Americans target this time is still the Middle East As he spoke, he looked around, then stood up and strode to the map hanging on the wall: "You see, attacks are launched from the sea in two directions: west and south. Although the northeast is inland, the US military has two air force bases in Kyrgyzstan and Uzbekistan. This will form a three-sided attack, plus the ground troops on standby. The situation is even clearer than before Desert Storm..." When Meng Dongchao mentioned "Desert Storm", even those who were slow to react should know what he meant. But... wasnt it already fought again in 1991? Li Lianhengs tone was full of confusion: Why do you have to fight again? ?He just thought about the Balkans, and he did have a certain mindset: Moreover, the United Nations has not approved it At this point, Li Lianheng''s voice stopped abruptly. ?The fact that the United Nations did not approve it does not seem to be a big deal to Americans. Or rather, there are very few cases where approval is obtained like Aiwuhan''s... "What about this...don''t tell me, even my superiors haven''t figured it out." ?Meng Dongchao shook his head helplessly: Even several NATO countries, including France, clearly expressed their opposition last month, but the Americans still have not slowed down their preparations for war. "In the images taken by Ocean 1, the three ships in the Mediterranean are the Roosevelt, Washington and Truman, the three ships in the northern Indian Ocean are the Kitty Hawk, the Constellation and the Lincoln, and the last one that just entered the Indian Ocean should be Its the Nimitz ??With such a familiar look, Li Lianheng suddenly felt a little frustrated: So... even if there was no Haiyang One, you would have known the movements of these seven aircraft carriers? ?And Meng Dongchao quickly heard the disappointment in his tone. As a conspicuous thing as an aircraft carrier, even if the mission itself can be kept secret, there are often thousands of people on board, and they always gather around the port before going to sea, so the general movements cannot be concealed from anyone. "But once they leave the port, if satellites don''t provide timely information, we may have to wait another half a month...or even longer to know exactly where they are and in which sea area they are operating." Imagine, if their target this time is not the northern Indian Ocean, but the western Pacific, then the time bought for us will be very precious..." After some consolation, Meng Dongchao, who was still excited, looked over the satellite images in his hand twice, and then stood up to leave As a liaison representative, he certainly did not just hand these things over to his superiors as they were. A complete report containing situation analysis and forecasts will also be produced. As a result, he was stopped by Li Lianheng Wait a minutethere are some more here. The latter gestured to the information box on the table: Although these are judged to be duplicates, we may be able to analyze some useful things, so you can take them back with you... ?Li Lianheng watched Meng Dongchao''s hurriedly leaving figure in ecstasy, and fell into deep thought for a long time. Until I was awakened by He Mingkun''s voice. Mr. Li, do you think there are still problems with the satellite remote sensing report just now? Oh, thats not the case. ?Li Lianheng waved his hand: I was just thinking about the last words that Staff Officer Meng just said. "If the target of these seven aircraft carriers is us, even if we discover the other party''s intentions in advance, what kind of response can we make..." He Mingkun obviously didn''t expect the answer to be like this, but he had to deal with the topic he caused, so he could only guess at random: This Im afraid we can only deploy defense in key directions in advance, just like in previous years? Thats still too passive after all Li Lianheng had some vague ideas in his mind, but he was an amateur after all, and in the end he failed to grasp the key point, so he sighed and decided not to dwell on it any more: "Forget it... let the people who specialize in weapons deal with the headache..." (End of this chapter) Chapter 1052 Now it’s a real battle test Chapter 1052 This is the real battle test The other side. Chang Haonan naturally didnt know that Haiyang 1 had already captured some incredible things. After all, although he is the person in charge of the satellite software part, he has no direct relationship with the operation and use of the satellite. Including subsequent satellite-related equipment tests, they are still being carried out on the ground - In fact, the reason why he joined the Air Police 2000 project was because he wanted to test the principles and technologies of the low-orbit communication satellite network. Its just the same as many projects he has participated in in the past. As you continue doing it, the side tasks become the main line. ?In addition, according to regulations, sensitive images captured by Haiyang-1 cannot be copied and disseminated at will. So generally, the space agency regularly sends a copy of the sorted and refined situation to the aerospace power group. Since Chang Haonan himself was not in the capital, he naturally couldn''t see it. ?However, this is not very important. Because he had already expected the US military to launch a "shock and awe" operation in 2003. On the one hand, it is the innate foresight of a reborn person. On the other hand, it is also more important. As early as 2001, Lao Wu made it clear that the Americans were probably preparing to do big things in the Kurdish region. That was even before the attacks in September. With the two-phase confirmation, the conclusion is self-evident. As for Chang Haonans attitude He was not prepared to do anything. Compared to Aiwuhan, which was closer to an accident and even had to borrow roads from China and Russia before the war, the Americans'' layout in the Mesopotamia is much more complete. ?Furthermore, the huge potential benefits in the areas around the Persian Gulf are not comparable to those in the poor mountain valleys of Central Asia where food cannot even be grown. ?There, the U.S. military will experience for the first time the joy of being a warlord with soldiers, food, and money, and will be out of control on the unbearable road in Phila. So, it is definitely a great good thing for China. Of course, this is also for image considerations ?Chang Haonan has always felt that superior leaders, especially military leaders, have misunderstood him too deeply. ?????????????????????????????????????????????????????????????????? ?At that time, Chang Haonan felt that it was too troublesome to explain, and it involved too many technical details that were difficult to understand, so he did not explain it. ?Unexpectedly, in 2001, someone picked up this matter again, and based on this, they suspected that he was also behind the shocking attack in September. ?This hat is a bit scary. So that time, Chang Haonan spent a lot of time saying that these two things had nothing to do with him. They are all accidents. It''s a coincidence. But the consequences of not refuting the rumors at the first time were quickly apparent. The effect of explanation can only be said to be better than nothing. Everyone thinks he is a bit humble. ? And if the upcoming deterrence operation in 2003 can still be related to Chang Haonan... ?Then he wouldnt be able to escape even if he jumped into the Yellow River. And this is quite regular. Once every two years, the performance is quite stable? So, in the recent period, Chang Haonan has been following the plan, working with technicians from the 14th Institute of Electrical Engineering and Haofei Group to continue testing various airborne equipment of the Air Police 2000. ?If nothing unexpected happens, he will spend the entire March and even the entire first half of 2003 in a low-key manner. However It backfired. ?Sometimes, even if a person avoids something, the thing will find him... March 15th. ?Prototype No. 2000-01, which had just completed system upgrade, took off from Yanliang Airport as usual and headed to the predetermined airspace in the northwest to perform a test mission At present, every fighter plane capable of firing missiles is a valuable asset of the aviation force. Naturally, it is impossible for those dozen planes to stay in Haojing to accompany the prince to study. Most of them transition at the speed of light after the test is successful. ?Only one J-10AS and one J-11BS that were originally in Yanliang are left. But these two aircraft themselves also have other subjects that need to be tested, and they are not specifically designed to serve Air Police 2000. ?However, a living person cannot be choked to death by urinating. Chang Haonan set up some ground stations with the simplest signal response function in a relatively remote place in the northwest. Used to simulate other nodes in the system. The effect is definitely far inferior to that of a real airplane. But it is still enough for some non-critical subjects. Just like today In this upgrade, the maximum number of nodes included in the command system has just been increased from 20 to 50. Hence, todays test is mainly to determine whether the system can handle so many response signals at the same time. As for the carrier aircraft itself, it also happened to take advantage of the opportunity to fly to the target airspace in Xinjiang Province to test its long-distance flight capabilities. Technically speaking, its not a complicated subject Check status, start engine, taxi, take off, climb... Everything is unfolding step by step as usual. If there is any difference, it is that the waiting time is particularly long. After all, after converting most of the luggage compartment into fuel tanks, the available range of the Air Police 2000 even exceeded the 8,000 mark. Long-distance flight test is difficult to complete without seven or eight hours. About three hours later, Captain Lin Hais voice finally came over the radio: Plane No. 01 reports that it has entered the scheduled airspace, the flight is in good condition, and the airborne equipment has been checked correctly. Request to start testing! Compared to before, there is a little more noise. But considering that the number of relays is almost twice as high as before, it seems normal. ?Chang Haonan looked at the time and then replied: The test can begin, please note that the target aircraft will take off in 10 minutes. In 2003, the average annual flying time of Air Force pilots was only fifty or sixty hours. This is still driven up by key areas in the east and southeast. Specifically speaking, in the inland areas of the central and western regions, it is even lower. Therefore, it is not always possible to coordinate a real aircraft as a test target. ?After receiving the news from Chang Haonan, Lin Hai immediately switched the radio to the in-camera channel: Prepare to turn on the radar and command system, and adjust the C-band array to the 110 direction. ??As his order was issued, the huge disk-shaped radome on the back of the aircraft slowly rotated. ??The other test pilot in the co-pilot position used a camera installed on the back of the aircraft to observe the entire process on the multi-function display - The camera was installed during the first flight to observe the vibration of the radome. Later, I found that the effect was very good and did not affect the flight, so it was never removed. Although its not the first time Ive seen it...it still feels spectacular. The first officer said with emotion: If it could be seen from the outside, Im afraid the effect would be better. I heard that when the command system was tested for the first time, the weapons control officer of a two-seater aircraft took photos. I dont know if this is true. ??The flight engineer sitting slightly back said immediately. This part of the test has little to do with the person in charge of flying them, so the atmosphere in the cockpit is relatively relaxed. ?At this time, the intercom rang again: Report, the radar was successfully activated and has not been found yet ?The target is not expected to take off until 10 minutes, and there are usually not many civil aviation aircraft in the northwest airspace, so it is normal for the radar to not see anything. ?However, this time, the radar operators report came to an abrupt end. About half a second later, just when Lin Hai was about to ask if something had happened, the other party''s voice sounded again: Report, a large number of low-altitude targets were discovered in the 300 direction and 550 kilometers away! ?This sentence almost made everyone on the plane a little unresponsive. The first officer subconsciously raised his head and looked to the left. ?At present, the C-band array of the early warning aircraft is pointed at the 110 direction in the southeast, so the 300 direction is... What is the detection range of L-band radar? As he spoke, he had already switched the screen on the multi-function display from the external camera to the shared radar image. As expected, a large area of ??densely packed echo signals appeared almost at the edge of L-band radar detection. Although it is a bit vague so that the specific amount cannot be discerned. But definitely a lot. 550 kilometers...this is already outside the country. The flight engineer also followed suit and judged: Probably in... Kyrgyz territory. Kyrgyzstan ?Lin Hai realized the seriousness of the problem in an instant. Kyrgyzstan does not have a large-scale air force. There are not many civil aviation aircraft that take off and land in such a small country with a backward economy and a sparse population. So, lets talk about large numbers and low-altitude goals. ?Then there is only one possibility. United States Air Force at Manas Base. The atmosphere in the cockpit, which was peaceful and peaceful just a few seconds ago, suddenly became tense. ?Lin Hai switched the radio to the HF band as quickly as possible in his life. Report, our aircraft found a large number of people in Kyrgyzstan in the 300 direction and 550 kilometers away But before he could finish his report, he was interrupted by Chang Haonan on the other side: We saw it. At this time, Lin Hai remembered that he had just ordered to open the data link and command system. In other words, the ground can see the radar detection results of the early warning aircraft in almost real time. ?This made him feel a little relieved In this case, the situation must have been reported. And listening to Mr. Changs tone, he didnt seem very surprised. Sure enough, after a short period of silence, Chang Haonan''s voice came again: "Don''t be too nervous. The situation has been reported to the Jincheng Military Region and they have received it." And...the problem wont be too big. Just treat it as a training with a relatively high degree of actual combat..." On the other side of the radio, Chang Haonan was staring helplessly at the laptop in front of him. At this moment, there was only one sentence echoing in his mind: Its over, its completely gone. ?The Americans want to cause trouble in the Mesopotamia. This is something everyone understands. But when exactly it will start, few people can guess. After all, it is March 15th. The ultimatum has not been given yet. Everything still looks like there is room for redemption. But Chang Haonan knew that if no major changes occurred, the shock and deterrence operation would officially begin on March 20. As for me, I once again "predicted" everything less than a week before the incident happened. ?Chang Wei, you still said you dont know martial arts? .jpg ?However, Liang Shaoxiu next to him was still a little worried: Mr. Chang, could it be that the Americans are taking risks and want to make a sneak attack... ?This conjecture is a bit unrealistic, but it is indeed something that many people were widely worried about from the beginning of the 21st century until around 2010. "Won''t" ?Chang Haonan waved his hand helplessly. Uhwhy? Liang Shaoxiu''s in-depth questioning made him roll his eyes and said to himself, I can''t tell you that in two days the US military will launch a large-scale military operation, and the Central Command responsible for West and Central Asia will temporarily move to Kyrgyzstan. , so a large number of planes are taking off and landing, right? ?So, Chang Haonan had to organize his language and then replied: Even L-band radar is unlikely to see a target the size of a fighter jet at a low altitude of 550 kilometers away. So these things must be transport planes or passenger planes, transporting logistical supplies to the US military in Kyrgyzstan... The explanation was reasonable and well-founded. Liang Shaoxiu thought about it for a while and did not continue to dwell on the issue just now. Just touched his chin, looked at the screen and muttered softly: "But...if it''s a transport plane, this would be a bit too much, right?" This time. ?Chang Haonan did not answer... (End of this chapter) Chapter 1053 New AWACS platform? Chapter 1053 New early warning aircraft platform? ?The thing that Chang Haonan was most worried about did not happen after all. After all, this time, the American''s cast forward swing was too long. ?After the flight test institute reported the emergency air situation discovered inadvertently, the final feedback was that Air Police 2000 was required to continue testing without disrupting the plan due to the activities of overseas air targets. Obviously, although there is currently no dedicated "hotline" across the Pacific, there is still some basic mechanism to prevent miscalculation between major powers. In other words, when the US military conducts large-scale operations in the hinterland of Central Asia, the top leaders of major surrounding countries should have been notified in advance. ?However, the superiors did not expect that the Air Police 2000 could capture the low-altitude activities of large targets 500 kilometers away, so they did not notify the flight test institute of the relevant information. It was only at this time that Chang Haonan learned that Haiyang 1 had captured the approximate location of the US fleet more than a dozen times in the past half month. The number of aircraft carriers involved is as many as seven. Although due to the insufficient number of networks, the timeliness of each positioning is basically at the 1-2 day level, which obviously cannot be used for the mid-stage guidance he envisioned. However, for the Chinese military, which in the past could only rely on unreliable means such as public reports and AIS information monitoring, it is enough to be ecstatic to be able to locate the approximate coordinates of the opponent completely by independent and controllable means. After all, even if the fleet is allowed to run freely, it will only cover about 1,000 kilometers a day. The current reconnaissance timeliness of 1-2 days can at least completely eliminate the possibility of the enemy using fake AIS signals to make noises from east to west. In short, with the advancement of technological means and the improvement of China''s international status, there are fewer and fewer cases where it is necessary to rely on a single source of information to judge the direction of the situation. As for what happens next, it is almost the same as the previous timeline... March 17th. Although it failed to obtain permission from the Security Council due to two objections and one abstention among the five permanent members, the United States still issued an ultimatum in the name of "checking the abuse of chemical weapons." By this time, even ordinary people can see it. War is unavoidable. Sure enough, three days later. March 20. Operation "shock and awe" has officially begun. In terms of scale, this is undoubtedly the largest military operation since the end of the Cold War. But since the defenders gave up most of their resistance almost from the beginning, the whole process was more like a march than an attack. Still marching along the highway. Militarily, it is completely lackluster. Even so, there is still a serious disconnect between the northern and southern coalition forces, which is surprising... ?However, military belongs to military, and technology belongs to technology. Compared to Operation Desert Storm 12 years ago, as well as the relatively small-scale Operation Allied Forces and Operation Enduring Freedom, the U.S. military in this war has indeed demonstrated commendable joint command capabilities. ?If nothing else, during Operation Shock and Awe, the proportion of precision-guided munitions used by the coalition air force was ten times greater than that of Desert Storm, but the reaction time was shortened to one-tenth. ?Furthermore, the frequency of accidentally hitting friendly forces is also greatly reduced. ?All this is largely due to the presence of as many as 50 early warning and command aircraft of various types, with nearly a hundred flights per day, ensuring the smooth flow of intelligence acquisition and command links across the entire battlefield. Therefore, it has also become an area of ??focus for Chang Haonan and others... "Mr. Chang, it seems that the 200 nodes we have reserved in the command system...not to mention meeting the needs of the three armed forces in the future, even just meeting the needs of the Air Force, may not be enough..." ?One day during his lunch break, Guo Lin sighed while flipping through the report in his hand. In terms of information warfare, we do still have a lot of room for improvement, but dont be scared by American propaganda. ?Chang Haonan put down the cup in his hand, raised his head and replied: Firstly, with the improvement of communication hardware level, the scale of the command network can be further expanded in the future. Secondly... ?He stood up and walked to the blackboard, and casually drew several connected circles: Dont forget, every node in our self-organizing network is a centerless node with equal status. In addition to the reception and response functions of ordinary terminals, it also has complete message forwarding capabilities. "Such a node setting is mainly aimed at a more flexible, smaller and more sophisticated combat style in the future. It is believed that even combat units have certain reconnaissance, surveillance and intelligence collection capabilities. In other words, they themselves are advanced in a centralized communication network. node." Having said this, he then drew more solid dots: "If we really need to command hundreds, thousands, or even more units to fight at the same time, then we can completely let a node in the self-organizing network command more ordinary nodes through the traditional communication network, even if it is just according to 1: The ratio calculation of 20 can also be expanded to more than 4,000..." ??When Chang Haonan mentioned a number like 4,000, Guo Lins hand holding the report trembled slightly: 4000If it were placed on the ground in a regiment-level battlefield, wouldnt every ordinary soldier be included in the command node? ??As a technician at Dianke Group, he usually faces a variety of clients, so his thinking is broader than that of his colleagues in the aviation industry who stare at airplanes every day. When Chang Haonan heard this, he suddenly couldn''t help laughing. Mainly because he remembered a joke he heard during the PLA military reform in his previous life - Synthesize the spirit to synthesize the soul, synthesize the squad leader to synthesize the human being... If the informatization level is decentralized to the end, wouldnt it mean that we can only use individual informatization soldiers???????Ahemthats indeed the long-term goal. Looking at the confused Guo Lin, Chang Haonan coughed twice and quickly returned to the topic: "Furthermore, the application of information technology does not have to be limited to the battlefield. Just like the 4,000 nodes mentioned just now, even for a factory, as long as it is not a particularly complex type, it is enough to control each operating node in a refined manner. " Such a factorydoesnt it mean that there is no need for people at all? ??Guo Lin''s eyes widened slightly. Theoretically this is the case ?Chang Haonan nodded. At the time before he was reborn, the black light factory was actually not a particularly rare thing. But for people at the beginning of the 21st century, it sounds somewhat dreamy. ??And if you imagine an empty factory building but busy maintaining production... ?Looks like he''s still a little scared. Therefore, Chang Haonan decided to return to reality first: Of course, these are things at the level of communication principles. Even if the construction is completed, if you really want to implement it, you still have to provide hardware-level guarantees. No matter how advanced the theory is, if we dont even have aircraft equipped with data links or communication satellites with sufficient bandwidth, we will only be blind ?However, Guo Lin seemed to be still immersed in his imagination about the unmanned factory and did not react immediately. It wasnt until a few seconds later that he took a deep breath and nodded: Indeed... just like the Americans this time, they actually dispatched more than 40 early warning aircraft to achieve such a command effect..." ?As he spoke, he turned to look at the Air Police 2000 prototype that was undergoing routine maintenance in the assembly workshop. Although the mass-produced aircraft carrier platform will be made domestically, the cost is still a bit too high for the People''s Liberation Army, which has all the services and arms eagerly waiting for replacement. Many times, quantity itself is also a kind of quality. Not all Americans use E3, half of them are relatively small E2C ?Chang Haonan sat back on the chair: "Everyone''s thinking is actually similar, both high and low. However, the scale of the U.S. carrier aviation force is large enough, so all the ''low'' parts can be handed over to the Navy''s E2C, while the Air Force only needs to operate the strategic-level E3. It looks much simpler, and we cannot have such a large-scale carrier-based aircraft in a short time, so the Air Force needs to equip both high and low models at the same time..." ?These words were somewhat comforting to Guo Lin. Because even the relatively low-level Air Police 200 has a relatively small amount of equipment in China ?Up to now, including the prototype that was later converted into a mass-produced aircraft, there are only one each for the Naval Aviation and Air Force Aviation. Furthermore, after the initial period of surprise, the subsequent procurement desire shown by the two military services was not very strong. This is not just a matter of cost. In fact, neither Party A, who is the user, nor Chang Haonan, who made the overall design of the aircraft, are very satisfied with the Air Police 200. The main reason is that the carrier aircraft is not satisfied. ?Although the safety of the Y8 III platform has been greatly improved, apart from the localization rate, there are really no other advantages. For users, the speed is slow, the range is short, and the comfort is poor ?Furthermore, as a planned "light" early warning aircraft, the 60-ton class is actually not very light. ?Even the size of the ground support units required to serve it is larger than that of the Air Police 2000 using a passenger aircraft platform. There is also one more crew member. There is really nothing to reason about. ?At that time, the issue of whether or not it was necessary was solved, and the ring project was put forward to give China a sigh of relief, so it became popular for a time. As the Air Police 2000 project progressed, the essence of Mrs. Niu was quickly restored in contrast. For Chang Haonan, as the 14 institutes verification of the principle of optically controlled phased array radar becomes more and more in-depth, he becomes more and more eager to find users in the international market to serve as guinea pigs. ?Especially after this deterrence operation, I am afraid that countries understanding and demand for early warning aircraft will rise to a higher level. It is definitely a market with considerable potential. ??Although I considered learning from David''s Falcon system and flexibly matched carrier aircraft by selling only airborne equipment, this was obviously a no-brainer. Earning more money from the platform is the next best thing. The main reason is that the structure and aerodynamic characteristics of different carrier aircraft are hugely different. If each order is customized, the production cost and delivery cycle will be greatly increased, which is also not conducive to competition in the international market... Chang Haonan rubbed his forehead in distress, preparing to put this problem aside and take a lunch break first. However, it is at this moment. A bold idea suddenly appeared in Chang Haonan''s mind... (End of this chapter) Chapter 1054 An epoch-making product Chapter 1054: An epoch-making product In fact, what has always troubled Chang Haonan is that the pedigree of domestic aircraft is too incomplete. Excluding C909 and Y8, the only ones that can barely be used as aerial platforms are MA60 and C808. ??At first glance, the former seems to be similar to the E2C platform, but in fact it is larger than the E2C and cannot be put on the ship at all. As a purely land-based platform ? ? It has a range of only about 2,000 kilometers, and with a big antenna on its back, there is no oversized luggage compartment that can be converted into a fuel tank like a serious passenger aircraft... ?That performance is really too abstract The latter, like the Y8, is essentially more suitable as a one-size-fits-all medium-sized platform, rather than a low-end combination of high and low. ?For example, the C808 was selected from the beginning for the anti-submarine patrol aircraft and electronic reconnaissance/electronic jammer aircraft currently under development. ?However, just now, he found that he seemed to have entered a misunderstanding. Because the early warning aircraft platform was first planned in 1998, it was natural that at that time only these models that had been or were about to be produced in China were considered. ?Although Chang Haonan had several contacts with the early warning aircraft project later on, he either thought of new radar technology or simply tested software or algorithms. In short, it has nothing to do with the aircraft itself. Hence, this matter has not been systematically reconsidered. But today, Chang Haonan took advantage of the topic raised by Guo Lin and thought about it carefully, and suddenly realized that the situation had changed dramatically compared to 5 years ago. ?This change is not only reflected in technology, but also in the external environment - In the past, we lacked core technology, so we were afraid of being unilaterally cut off. But now Think about the NH90 helicopter Think about the M88-3 engine. Think again about the Trent 900 Let me say it again, who is afraid of someone cutting off the supply? ? Huaxias competitiveness in the worlds industrial chain is no longer, at least not just about its huge market potential and low supply costs. Rather, it actually has core technologies that cannot be replaced. In this case, regardless of personal use models, at least for foreign trade products, you can think more broadly... Dont say anything else. ??Dont the French want their own early warning aircraft? ??The Navy has no choice but to purchase E2C because it has to consider carrier-based equipment. But when the Air Force chose E3F, there was still a lot of controversy. ?Except for replacing the aircraft platform with a better-performing engine, this model is not fundamentally different from the E3A 20 years ago. The quotation was solidly close to US$500 million. After entering the new century, the French Air Force, which felt that the performance of the E3F was somewhat outdated, began to seek technological upgrades. As a result, he will be blackmailed a lot again. ?In addition, in terms of demand, with the scale and mission of the French Air Force, there is no need for a model of the size of the E3A. Not only Chang Haonan thinks so, but even the French themselves think so. There has been constant talk about replacing the E3F with the Erieye. And they did exactly that before Chang Haonan was reborn. Since you can even buy Swedish products, if the Falcon Z is used as a carrier aircraft, it will be at least the same as the NH90, and it can be nominally regarded as Frances own production... As for the command system and data link, they were originally optional parts. Just go back and use your own. ??Anyway, even the E3F is operated independently by the French Air Force and is not connected to NATO''s common command system... Not only that, you can also get some advantages when selling to third countries. At least it will not suffer because there are fewer users of Chinese fighter jets. ?Thinking of this, Chang Haonan, who was a little drowsy just now, stopped feeling sleepy in an instant. At the moment, Liu Yongquan is in France tracking the testing of the SeA650 engine. It just allows him to test the other party''s attitude. After all, the overall design of Falcon Z still belongs to Dassault. And if you want to modify a special aircraft based on it, it is obviously a big trouble without the original design plan... A few days later, France. The cloud of war hanging over the Middle East has had almost no impact on Europe. At least not yet. ?Even more, because no troops were sent to participate in the deterrence operation, the French people generally just watched the fun. Normal production and life have not been affected. ?Of course, its old Europe. The so-called normal production and life may not actually be normal ?For example, the Falcon Z prototype was originally scheduled to fly for the first time in January 2003. Although everything seemed to be normal, it was still delayed for nearly a month without realizing it. Fortunately, preparations on the ground were relatively sufficient, and the SeA650 itself is a relatively mature design, and the French are experienced in passenger aircraft test flights, so after entering the test flight stage, there were no other problems. By late March, all basic subjects will have been completed and the gradual transition to the next stage will begin. That is, the performance related to Falcon Zs commercial selling point. It mainly consists of three parts. Speed, range, and cabin quietness. Besides safety, these are also the most important properties of a business jet. Quietness can be tested throughout the flight test and does not need to be conducted as a separate subject. For the sake of ensuring test efficiency, the voyage must be arranged at a relatively later stage. After all, it is more than 12,000km, which is enough to fly directly from London to Beijing. ??It could even be included in the trial run as part of a publicity stunt. ?Just like the aviation industry in the 1920s and 1930s, they were keen on crossing the Atlantic in various ways. Hence, the core subject at the current stage is still the maximum flight speed. ?Especially for the new wing designed by China, in previous ground flutter tests, the maximum allowable speed reached an astonishing Mach 0.990. It is higher than the design indicators presented at the beginning. Of course, this number is already the maximum that the aircraft structure can withstand, which means that it will break immediately no matter how fast it is. It does not mean that the aircraft can really fly levelly at Mach 0.99. This speed will not be touched even during test flights. ?Dassault is not Boeing, so it cannot really use its test pilots as consumables. But as a model that uses high speed as its selling point, it will not hurt to leave some more safety redundancy... Charles, we checked the flight parameter recording equipment and determined that during this test flight, the aircraft reached and maintained an airspeed of Mach 0.92 in level flight. In a hangar at Merignac Airport, flight test director Rob Boudin emerged from the cabin of the Falcon 8Z and reported loudly to Charles Edelsteiner who was checking the cabin noise record data not far away. . As he spoke, he strode to the test workbench, put the recording device in his hand on the table, wiped the sweat from his forehead and continued: "I have to say that the most wonderful design of this aircraft is neither the speed nor the noise, but the cross-sectional area of ??the cabin... I can finally stand up straight in a business jet, without having to bend over and walk like a dog hole... " Thanks to Snecmawellin short, thanks to the two new engines with sufficient thrust, the Falcon Zs cabin cross-sectional height is 8 cm larger than the average for its class. This number may not be very impressive, but for passengers of average height, it is just the critical point of being able to stand up straight... As Ed Steiner spoke, he raised his head and looked at the recorder in Robbs hand with complicated eyes Mach 0.92 is actually the pie drawn by Falcon Z during the early publicity process. Because it is a pie, it was not marked at the beginning whether it was air speed or ground speed. ?His original idea was to find a tailwind and let the aircraft''s GPS speed (that is, ground speed) exceed Mach 0.93 at the altitude at that time. If that doesnt work, you can still do a shallow dive. In short, Chunqiu Bifa Laman, as long as it can avoid accusations of false publicity, it will be fine. This is also an open secret in the industry. Rich people usually think that their time is valuable, so they like this kind of publicity. But in reality, no one really cares about those 10 or 15 minutes. However. ?Who thinks so? His intentions were bad, but he carried them out well. After switching to a lower-drag wing, the aircraft actually reached an airspeed of Mach 0.92 in level flight... This is great. Falcon 8Z has a total of three main selling points. High speed. Relying on low-drag wings designed by others. Large voyage. Relying on a low fuel consumption engine designed by others. Quietness. ? Relying on soundproof nacelles and active noise reduction systems designed by others. Although the overall design of the aircraft was still led by Dassault. ??But it didnt feel right to Ed Steiner. ? Falcon 8Z is an epoch-making product in the field of business jets. But if you take a closer look, you will find that the times are marked by others? (End of this chapter) Chapter 1055 Business jets for military use? Chapter 1055 Are business jets used for military purposes? ?However, Robb Boudin apparently did not notice Ed Steiners emo. ??For him, who is only responsible for test flight missions, his lifelong interest is focused on exploring the performance limits of a model, and he is not very willing to care about the entanglements of interests in the research and development process. Therefore, after a brief pause, he continued: In fact, as far as my personal feeling is concerned, this aircraft is far from reaching its limit. If a shallow dive is carried out during the test flight according to the original plan, it should be able to break through to a higher speed..." Robb said as he stretched out his hand and made a downward diving motion in mid-air. ??This somewhat crazy proposal made Ed Steiner tremble with fright, and he said in his heart that you guys who are doing test flights are really not afraid of death He did initially think about making a shallow dive as a disadvantage, but that was because according to estimates at the time, the Falcon 8Z was too large and had a thick fuselage. The maximum airspeed and Mach number in level flight were 0.9 cant even be reached. ?In this case, if you take advantage of the tailwind and engage in shallow dive acceleration, the risk is still within control. But now, the actual flight result is almost 40km/h faster than the original calculation. ? Dont look at it, this number is not too high in proportion, not even a 5% deviation. ??But this is the transonic range. It is no exaggeration to say that every 1km/h speed change will have unpredictable effects on airflow and structure. At least for Ed Steiner, it was unpredictable. As long as you keep flying level, that''s all. After all, there is no longitudinal overload. Even if the speed is found to enter the danger zone, you can achieve gentle deceleration just by slowly closing the accelerator. At least there wont be any big problems like machine destruction or human death. But if it enters a dive state, it will be difficult to tell when it needs to level out. ?In case of rudder lock or even wing breakage... ?Ed Steiner felt a chill running down his spine just after thinking about it for a moment. ?Unsurprisingly, Falcon Z will be the last important project he is responsible for in his career. Since the pie that was drawn back then has now come full circle, the remaining task is to ensure that the model can be launched smoothly and achieve commercial success. The old man is too old to do risky things. Its still not necessary. ?Ed Steiner decisively refused: The maximum speed and minimum speed tests are both up to standard. Now that the design indicator of 0.92 has been exceeded, the focus of subsequent tests should turn to the allowable envelope range at this speed, rather than blindly continuing to accelerate. Furthermore, according to our flight control program settings, no matter if the aircrafts airspeed exceeds Mach 0.9 under any circumstances, it will sound an alarm and automatically enter the deceleration program. While speaking, he connected the data recorder that Robb had just brought to the special reading device, preparing to confirm the test flight data himself, and then cut out a more eye-catching section from it to use as promotional materials. "Um?" Robb couldnt help but be stunned: Is there such a restriction? Wellit was specially added after learning lessons from some typical air crashes that occurred in the past. ?Ed Steiners answer was somewhat ambiguous, and he obviously didnt want to dwell on this topic any further: "Of course it was not installed during the test flight. You test pilots definitely don''t need these... But it''s hard to say for commercial airline pilots... Including the dive you just mentioned, in the future, large-angle climbs and dives may also be restricted from the flight control level. action." Robb next to him suddenly showed a look of enlightenment. We are all in the same circle. At this point, its hard to guess what the reason is. Anyway, please remember to make arrangements as soon as possible... Just when Ed Steiner was about to end the conversation, another voice came from behind: Actually, Charles, based on our analysis of the engine operating data during this test flight, the SeA650 has the potential to further increase thrust... The two of them turned around and saw Ian Vista coming out of a small cubicle next to them. Of course I know that. ? Ed Steiner had a matter-of-fact expression: But the Falcon 8Z is already the largest model in the entire series. Even if an aircraft engine with greater thrust is redesigned, I am afraid it can only be reserved for regional passenger aircraft..." Obviously, he was mistaken. I thought the other party was saying that based on the same core machine, products with a higher thrust level could be designed. This is indeed a reasonable thing. After all, the SeA650 can essentially be regarded as a non-afterburning model with a small bypass ratio. ?Even if nothing else is done, just replacing it with a larger fan can increase the thrust to 9-10 tons. Its just that there is no suitable installation target. But Vesta shook his head: Its not a redesign...I mean, judging from the performance, the SeA650 itself can also squeeze out some extra thrust, but it is currently limited by the engine control program. Of course, what I see here can only be regarded as some superficial symptoms. For specific situations, I still need to seek the opinions of Chinas partners... ?Ed Steiner couldn''t help but curl his lips, subconsciously wanting to complain about whether it was a bit inaccurate for the other party to call China a "partner". But as he spoke, he thought of the Falcon 8Z situation, and felt that he had no position to speak out against others. Finally, I swallowed it. Next to him, Robb immediately began to look forward to the opportunity to further achieve a higher level flight airspeed, but he remembered that Ed Steiner had made it clear that there was no need for this, and he didn''t know what to say for a moment... The atmosphere between the three people actually fell silent... Fortunately, just when Vesta felt a little embarrassed because of the cold scene, another figure appeared at the door of the hangar and walked in hastily. Cao Cao has arrived. It was Liu Yongquan who came to inspect the test flight on behalf of China. ?Vestal breathed a sigh of relief and rushed forward to ask about the feasibility of further increasing the thrust of the SeA650 engine. Liu, take a look at this data. He thrust several charts into Liu Yongquans hands: Even at the very edge of the flight envelope, the peak vibration data measured by the sensor is still only about three-quarters of the maximum allowable amount. In this case, why cant a higher speed limit be opened at the control program level? ?The latter came here this time because he received news from Chang Haonan and was going to discuss the feasibility of expanding the Falcon Z market with Ed Steiner. ?As a result, as soon as I entered the door, I was asked a technical question in front of me. So much so that I was a little confused at first. It wasnt until I took the chart and looked at it for a while that I finally came back to my senses. Immediately afterwards, he showed a slightly embarrassed expression Because this speed limit was specially added by Chang Haonan. Under normal operating conditions of the SeA650, because the rotor bearing at the No. 1 fulcrum is replaced with a non-contact magnetic bearing, the vibration situation has indeed improved. As Vesta said, the engine speed can be increased by another 5 %about. Considering that this is the first time that magnetic bearings have been put into practical application, in order to ensure foolproofness, backup rotor bearings and corresponding mechanical actuation systems are installed. ??And if the speed is further increased, the magnetic bearing does not matter, but this set of mechanical backup is likely to be unable to withstand it. But the fundamental reason for such a slightly awkward design is that Chang Haonan regarded SeA650 as a guinea pig for technical verification. How can he explain this to the other party? Ahem Liu Yongquan looked away with a guilty conscience. At the same time, his brain was spinning rapidly and he began to formulate words: "The design indicators of the SeA series engines are set based on the needs of Party A...that is, Dassault. When the performance is sufficient, the main purpose is to retain a larger safety margin. There is no need to pursue more extreme paper data... " Speaking, he looked at Ed Steiner not far away: Is that so, Doctor? ??The latter was a little surprised to be cueed suddenly, but Liu Yongquans answer was exactly in line with his request of not wanting to get into trouble, so he nodded immediately; Thats right. In the just-completed test flight, the Falcon 8Z has already reached an airspeed of Mach 0.92. Further increasing the thrust will reduce the cost performance and have a negative impact on safety..." ?The two struggled for a while, and finally managed to deal with Vesta and Robb, who were obsessed with pursuing the ultimate. ? Ed Steiner sighed and shook his head helplessly: How come these people who are engaged in aviation development have no concept of risk control in their minds... After finishing speaking, I realized that the situation seemed not quite right, so I quickly added: OhSorry, Im not talking about you "It doesn''t matter" Liu Yongquan didnt care about these minutiae. After confirming that there was no one else nearby, he quickly switched to the main topic of his trip: Doctor, I came here specifically because I received a request from my superiors to ask if your company has any plans to enter the Falcon 8Z into the military market? According to his opinion, his hint was already very obvious. When business jets enter the military field, apart from changing them into special aircraft platforms, is there another way? It should be said that if Ed Steiner were from another company, there is a high probability that he would indeed understand what Liu Yongquan meant. However. He is from Dassault. Dassault, business aircraft, military. ??These three keywords were put together and instantly led the other comrade in his sixties astray. Military market? ?Ed Steiner had an expression on his face that said, Im afraid youre not kidding me: Falcon 8Z can indeed be equipped with an all-weather optoelectronic system, but that is... At this point, he subconsciously glanced in both directions, and then lowered his voice a bit: Thats to transfer the technology of the Damocles pod to you... No normal users will choose to install it... And in the 21st century, there will no longer be madmen who install two missiles on business jets for low-altitude penetration..." (End of this chapter) Chapter 1056 Dassault’s thoughts Chapter 1056 Dassaults little thoughts It was only then that Liu Yongquan realized that the brain waves of the two people were not on the same channel at all. What Ed Steiner was talking about happened during the Iran-Iraq War in the 1980s. ?At that time, the two sides were engaged in a missile ship attack war, and both hoped to gain a war advantage by strangling the other party''s oil exports. But anyone who takes a look at the map will understand that in this struggle situation, the Persian state, which occupies almost the entire east coast of the Persian Gulf, has a huge advantage. They only need to deploy land-based anti-ship missiles or even shore artillery on the coast, which is enough to block the choke point of the Strait of Hormuz. The other side located in the deepest part of the bay needs to dispatch its air force to conduct a long-distance attack to achieve the same attack effect. Even though they have the support of the entire Western world, war resources, especially anti-ship missile carrier aircraft, are still stretched thin. ??And the main model used for ship attacks at that time was the Mirage F1. Each dispatch could only mount one Exocet missile on the belly of the aircraft. It often required a two-plane or even four-plane formation to completely sink an oil tanker. ? And such a large-scale attack is easy to be detected, which in turn invites interception by the opponent... In short, in order to improve strike efficiency and concealment, they experimentally converted a Falcon 50 business jet into an anti-ship missile carrier aircraft. Not only is the bomb load doubled compared to the Mirage F1, but the radar signal characteristics are also almost the same as a normal small passenger plane. Even if the other party is suspicious, they may not dare to fire on a suspected "civilian target". All in all, the plan seemed seamless. As for the results It has indeed achieved brilliant results. The problem is, its too brilliant. ??The first time the aircraft was dispatched, it launched two Exocet missiles at the USS Stark frigate that was escorting the Persian Gulf at the time, and both hit the target... It can only be said that American warships are more reliable than British warships after all. In addition, the krypton gold damage control during World War II has not yet expired. After taking two Exocet shots, it persisted in sinking, but in the end, 37 people died. The Stark Also suffered heavy losses. ?The whole process is full of all kinds of mistakes, and it is indeed very effective. ?Liu Yongquan bit his tongue one last time to control himself from laughing. ReallyI think of happy things. ?However, looking at Liu Yongquan who was hiding his face and suppressing a smile, Ed Steiner felt a little unable to hold himself tight and looked a little annoyed: Whats so funny about this? There are differing opinions as to whether the attack was intentional. ??But there is no doubt that this incident gave the Falcon series business jets, which were still in their early stages of development, a considerable reputation. Its just that its not necessarily a good reputation The entire modification process was carried out by Dassault. ??The use of civilian aviation identities to cover military missions is itself a quite sensitive topic. ?That was still the 1980s, when everyone was generally wild. Its the 21st century now. If you continue to play this way, you will probably be drowned in spittle. There is no need to worry about the reputation of Falcon 8Z. For Ed Steiner, this is naturally an absolutely unacceptable result. Uh...no, you got it wrong. Liu Yongquan gently pinched the side of his face to restore the stiff facial muscles to their original state: My superiors intention is to use the Falcon 8Z as a platform to develop a series of special aircraft, such as... early warning aircraft. After a short pause, he continued to explain: You know, although this deterrence operation met with little resistance, it did cause some deterrence to many countries...especially those in the Gulf region. The coalition forces dispatched nearly 50 early warning aircraft to direct 2,000-3,000 combat sorties every day, shortening the detection-strike chain construction time from one and a half hours during Desert Storm to less than 20 minutes, and also significantly reduced the probability of accidental strikes. " So after this war, the international community, especially some relatively wealthy small and medium-sized countries, is likely to start a wave of purchasing early warning aircraft. If we can seize this opportunity, it is a market with great potential..." Ed Steiner now realized that he had made a big mistake, and scratched his head in embarrassment. Fortunately, the other party''s proposal was quite attractive and his attention was quickly attracted. Early warning aircraft He looked at the Falcon 8Z parked less than ten meters away and subconsciously blurted out: Is it a little too small? Falcon 8Z is actually the Z9 plan in the original Falcon project. It was only renamed 8Z considering that the number 9 is unlucky in some cultures. ?Although it is already the largest model in the model spectrum, it is still a business jet in the final analysis, not even a regional passenger jet. The maximum takeoff weight of less than 40 tons seems a bit unsatisfactory among today''s early warning aircraft. But as soon as he said the words, Ed Steiner himself realized that something was wrong. The Swedish Saab 340 has a take-off weight of only 15 tons, but it can still be transformed into an ASC-890 early warning aircraft. Although the range is close to three digits and it only has air radar function, command and control need to go down to the ground station for operation. But at least it shows that it is feasible. ??And considering that the Falcon 8Z is twice the size of the other one, it is even possible to retain complete functions. At this time, Liu Yongquan also gave a high-five: Only those who are small have a market! As long as there is a decent country, who would want to... ? He ??originally wanted to say, among all decent countries, who is willing to make external purchases? Everyone should also try to develop their own early warning aircraft. ?Even next door, Dai Ying, has two generations of Gannet AEW3 and Shalkton AEW2 products that have reached a new level of ugliness. But on second thought, this may be a bit too insulting to the law. After all, the French really dont even think about it. So I finally changed my words: In short, the biggest advantage of business jets is that while they are small in size, low in cost, and easy to service, they can also maintain a longer range and airtime than most large passenger jets, and even only need two aircraft to rotate. Being able to maintain 24-hour uninterrupted patrols is very attractive to many countries..." ?And Ed Steiner happened to have this in mind. For most countries, a detection range of four to five hundred kilometers and the processing capacity of hundreds or thousands of targets are not required. As long as they can deter neighboring countries with conflicts of interest, it is enough. So strategic early warning aircraft that can easily weigh 100 tons or even 200 tons are a serious waste of performance for these users. On the contrary, the economical type will be more popular. ?Furthermore, the upgraded Rafale F2 will soon enter the delivery cycle, and many potential users have begun to include this model in their option lists again. If this happens, Dassault can launch an early warning aircraft with adequate performance in all aspects... So it can obviously achieve the effect of 1+1>2. ?In particular, the Mirage 2000 is already in active service in many countries in the Middle East, and it can bring many advantages. ?Furthermore, the French Air Force itself no longer needs to worry about whether to spend huge sums of money to upgrade the E3F. ??The money that the Yankee Lion opened his eyes to is enough to buy several new airplanes. "I" ?Ed Steiner blurted out ready to agree. But at this moment, he suddenly had a different idea ? As a technical staff member of Dassault, Ed Steiner first came to Huaxia, just thinking of using a dead horse as a living horse doctor and asking the other party to help Snecma solve the reliability problem of the M88. But this search does not matter, it is like opening Pandora''s box, involving a lot of subsequent events. In the end, the M88 and SeA650 almost became other peoples aviation engines. Even the Falcon Z project inexplicably made the Chinese become the second largest participant. Nearly lost the dominance. And the core technologies are still in the hands of the other party. This situation is obviously not good for Dassault. ?And now, the Chinese have taken the initiative to propose an early warning aircraft based on the Falcon Z? Im afraid you dont have any good intentions? You must know that France has no experience in developing early warning aircraft. The airborne equipment must depend on others. ?So calculated, in the entire early warning aircraft project, China''s contribution accounts for 100% of the mission load and 30% of the platform... ? Doesnt the plane belong to someone else? Furthermore, the Chineses own early warning aircraft has only been in service for less than two years, and no one knows its performance. In comparison, Sweden, which I just remembered, seems to be a better partner. At least equally share the project leadership. Furthermore, Ericsson''s products have been deployed for many years, and at least I haven''t heard of any fatal flaws. ?Thinking of this, Ed Steiner immediately changed his words: Im afraid I personally cant give an immediate answer on this matter. I need to report the situation to the group headquarters, and the board of directors will make a decision after discussion... ??As a veteran who has been around the world for decades, he didn''t say anything to death. After all, Dassault has never had in-depth cooperation with Ericsson in the past, and it does not even know whether the other party has any intention to cooperate. ?In case something goes wrong, leave some room for maneuver now so that you can have a way out then... ?However, Ed Steiner changed his mind temporarily after all, and this wave of acting is really a bit stiff. ?Although Liu Yongquan on the opposite side did not completely guess what he was thinking, it was not difficult to see that the so-called board discussion was just a way to delay time. ?Of course, everyone is a decent person, and they dont say anything when they see through something. He just kept the situation in mind secretly, and was going to go back and ask Mr. Chang if he had any countermeasures... (End of this chapter) Chapter 1057 Its okay, theyll be back Chapter 1057 It doesnt matter, they will come back In this era, the means of transnational communication are still relatively poor. ?Especially, China lacks its own satellite communication system, resulting in classified information still highly relying on traditional encrypted radio transmission, and the communication efficiency is very low. If you want to transmit something other than text, it will be even more troublesome. Fortunately, Liu Yongquans European trip is already coming to an end, and the early warning aircraft project is not in a hurry. So, he simply used his last few days in France to have a frank, open and constructive communication with Dassault. And along with a lot of information obtained during this trip, he submitted it to Chang Haonan Although the latter had made plans to stay in Haojing until the second half of the year, an unexpected incident disrupted the plan. The Commission of Science, Technology and Industry for National Defense is about to be reorganized. In fact, since the establishment of the Equipment Industry Department a few years ago, the functions and positioning of the Commission of Science, Technology and Industry for National Defense have begun to change. From being solely responsible for the defense science and technology industry, it has gradually evolved into coordinating the development of the overall industry and cutting-edge technology. The superiors have also been deliberately downplaying the military-related nature of the Science and Technology Commission. For example, the three deputy directors who were transferred in the past two years no longer have military positions. However, most people, including Chang Haonan, still believe that the Commission of Science, Technology and Industry for National Defense itself can continue to exist for some time. However, after the 2003 conference, rumors quickly spread that the Science and Technology Committee would be included in the new round of institutional reorganization. It is said to be a rumor, but it is basically what the above said. So the accuracy is close to 10%. ?However, no one is sure yet what the specific reorganization plan is. There is talk that the Science, Technology and Industry Commission, like the previous Ministry of Machinery Industry, may be split into other different systems. There is also talk of merging it with several other agencies with similar functions. ? It is also said that the change will not be big, it may just be a brand change like the Science and Technology Committee became the Ministry of Science and Technology... In short, its basically just guessing. ?Including Ding Gaoheng, he was very tight-lipped this time and did not reveal any relevant information. It just means that the superiors are studying it and guarantee that there will be a solution that satisfies the majority of people. ?This kind of ambiguous rhetoric makes people even more worried. In various enterprises and units under the Science and Technology Commission system, it is inevitable that some people are panicked. ?As the main leader of the Aviation Power Group, Chang Haonan would not be able to stay in Haojing for a long time at this time. Had no choice but to return to the capital temporarily to stabilize people''s hearts. Mr. Chang, in the days before returning to China, we have been in talks with Dassault, especially Dr. Ed Steiners team. ?In Chang Haonan''s office, Liu Yongquan reported and put an opened meeting minutes in front of Chang Haonan: According to my observation, the French may have other ideas about modifying an early warning aircraft based on the Falcon Z. ?Chang Haonan did not express his position immediately. He just lowered his head and looked at the talks between the two parties, and at the same time motioned for Liu Yongquan to continue. ? Many people will make preconceived judgments based on the opinions of others, but Chang Haonan may be used to multi-threaded work, so he has good resistance to this kind of problem. Furthermore, from his operation of directly transferring people from Institute 606 to Haojing to serve as technical backbones, it is not difficult to see that Liu Yongquan is actually one of the next generation successors that the group is focusing on. He also needs to exercise his ability to judge independently. After a brief pause, Liu Yongquan added: "Although Dassault was very positive on the surface, and even the first two talks were initiated by them, every time I tentatively raised some practical issues, such as the aerodynamic and structural design of Falcon 8Z after installing the antenna, , or if the early warning aircraft project is formed and the rights of both parties in the product are proportioned, they will start to dodge the important and take the light, or in turn test what technical route we are going to take. " "It seems that Dassault is definitely interested in using the Falcon 8Z as a platform to modify special aircraft, but this interest... does not seem to be joint research and development with us... it may be that it wants to complete it independently with Thales. , or looking for other cooperation partners..." So I feel like, if they do that, could they consider putting some obstacles in the way of the Falcon Z project... to give them a slap on the wrist? In fact, before asking Liu Yongquan to test Dassaults willingness, he roughly guessed that this would be the situation After all, the beginning of the 21st century is exactly when the French people are at their highest. You must know that the euro in this timeline did not suffer the same head-on blow as in the previous life. After reaching the lowest point of 1:1.02 against the U.S. dollar in May 1999, the exchange rate has bucked the trend and has been rising. Now it has been stable around 1:1.4 for a long time. ?This has even helped Europe to get out of the shadow of the economic crisis ahead of schedule to a certain extent. Several economies with close ties with the EU, such as China, the CIS, ASEAN, and the GCC, have also successively increased the proportion of the euro in trade. ?Most of Africa still uses various francs, and its financial lifeline is tied to the Bank of France. ?In this context, it is normal for Dassault, as an independent company with certain strength and reputation and one of the business cards of the French aviation industry, not to tie its three key models to the same partner. ?Of course, ideas are ideas. To truly implement it, you still need to have the ability. And Liu Yongquans analysis just now is actually very close to the actual situation. ?Its just that the solution I finally thought of was too simple and crude. But its also understandable. His generation was basically under the technological blockade of the West in the first half of their careers. ?Now that I finally have the opportunity to make a comeback, I inevitably want the other party to try the same thing. Dont talk about him. Even Chang Haonan thinks about it. But its not the time yet. Old Liu, think about it for a moment. ?Chang Haonan raised his head, leaned back on the chair, and replied leisurely: The reason why we were able to open up a new situation in technical cooperation with Europe in the first place was because the FAA and the JAA were competing against each other, and in the end we, the fishermen, benefited. Now, we are like the Europeans, one among us, and one among us. If we follow the Americans tricks at this time, wouldnt we give up our greatest advantage and push away the cooperation partners we have already obtained? Technical blockade is like a nuclear weapon. It is most useful when it is on the launcher. If it is used, it will lose its deterrent effect..." ?Of course, he only said half of what he said. As someone who has experienced the 2020s, Chang Haonan knows it very well. The ultimate means is not unusable. It can only be used once. So we must wait for the critical moment to deliver a fatal blow. It is impossible to waste it on such trivial things. Whats more, the two sides are still on the same boat... "Mr. Chang, if we don''t respond, will this early warning aircraft project... continue to be followed up?" ?On the other side, Liu Yongquan, who calmed down, also realized that Chang Haonan was right. But considering Ed Steiner''s attitude, he felt that if he didn''t do something, it might be difficult to save the situation. Of course you have to follow up. Chang Haonan closed the meeting minutes on the table: "But just remember this, don''t expend too much energy on it... I estimate that as long as we wait for a while, the French will most likely come back to us. By then, the project should be managed by the Electrical Engineering Technology Co., Ltd. The group takes over, and we are just a middleman..." Getting such a reply made Liu Yongquan a little confused for a while. ?Although based on experience, Mr. Changs judgment is undoubtedly worthy of trust, but he really didnt understand the situation this time. Looking at Liu Yongquan who was full of doubts, Chang Haonan smiled and continued to explain: The French themselves have never conducted research and development of early warning aircraft, so if they dont want to find us, the only potential cooperation partners left are the Kingdom of David and Sweden. "But the former technical route is not suitable for extreme miniaturization. If you want to fly on a business jet, you can only build a conformal array, which means covering the entire side of the aircraft with antennas. This improvement method will destroy the aerodynamics of the aircraft and change the wing root. As for the load-bearing structure, it is not easy for Dassault to understand our wing design and we dare not act rashly in this regard. "As for Sweden... the size of Erieye''s antenna is indeed appropriate, but it is achieved at the cost of reduced performance and complete abandonment of air command functions. Although the Falcon 8Z is twice as large as the Saab 340, it still needs To accommodate complete early warning and command functions, the antenna must be slimmed down. The French have no experience now, so they dont realize the complexity, but after they come into contact with the Swedes, they will have no other illusions... Ultimately, Chang Haonan dared to use the 35-ton Falcon 8Z as an early warning aircraft platform because the optically controlled phased array antenna is light in weight and small in size, and is inherently suitable for application on small platforms. ?If AESA, which has a traditional technology route, wants to fly on a business jet, it will need some extravagant skills... ?Half of the design of the Falcon Z project comes from China, and Dassault does not have the ability to independently develop innovative technologies. So, I can only look back honestly... (End of this chapter) Chapter 1058 Rolls-Royce tastes sweetness Chapter 1058: Rolls-Royce tastes the sweetness ?Later in the day. Toulouse, France. Compared to the little things discussed by Chang Haonan and Liu Yongquan such as business jets and early warning aircraft, what is about to happen here will have a more profound impact on the global aviation manufacturing industry ? Airbus A380 has completed the basic design and will soon begin production of the first prototype. ?But before that, there is one important thing that needs to be determined. ? So what type of aviation engine will be used for this prototype numbered MSN001, or all five prototypes MSN001-MSN005? Trent 900 or GP7200? Although, for large passenger aircraft using a wing-mounted engine layout, the engine model will not have a big impact on the aircraft design. But when it comes to specific production, because there are still differences in details such as the engine nacelle, wing mounting lugs, and FADEC systems, the power plan of each aircraft must be decided before the order is confirmed. To ensure continuity of production, the power of the five prototypes and the first batch of production machines will be the same. In other words, for Airbus, this choice will not only affect the subsequent test flight progress of the entire A380 project, but also determine the order of aircraft delivery and the evaluation of the first users. Hence, it must not be taken lightly. ?Of course, such a major matter cannot be discussed by the three parties sitting together in a meeting. In other words, letting the two competitors Rolls-Royce and Engine Alliance sit together is a very abstract idea in itself. After all, neither the Trent 900 nor the GP7200 has started official testing yet. ?Even if the two sides dont fight, it will definitely turn into a drawing contest in the end. ?That would be meaningless. Therefore, Party A can only send representatives to learn about the situation from the two suppliers before making a final decision. Even so, it is still necessary to consider how credible the commitment given by Party B is. After all, the A380 has already achieved the goal of first flight in 2005 and operation in 2007. ??If the power aspect lags behind, even the gods will not be able to save it. The terrible thing is, judging from the previous situation, the probability of this risk becoming a reality is getting higher and higher GP7200 is a new model that was launched in 2001. ?Although the Engine Alliance has repeatedly promised that the first flight can be achieved before the end of 2004, the credibility is still doubtful. Although the Trent 900 is two years earlier, and the overall design is derived from the mature Trent 800, it seems to be a safer choice. However, in order to compete with the GP7200, which sells quietness, a series of new technologies have been adopted in the turbine structure quite radically. Hope to win more orders with low fuel consumption. ?However, contrary to expectations, the radical design brought higher technical risks. Last year, there were also rumors that the combustion chamber design may be revised to reduce the temperature in front of the turbine. Not only will the construction period be affected, but performance will inevitably be reduced. This is quite critical for the evaluation of the first users. For this reason, Charles Champion, chief operating officer of the A380 project, has been worried for a long time. The two engine suppliers have made him a key breakthrough target. ?For example today, he needs to receive a group of visitors from Rolls-Royce. Nominally, he hopes to visit the assembly workshop in Toulouse, but in fact, Champine knows everything with his toes. This must be a routine public relations operation... Of course, the other party is one of the core suppliers of Airbus after all. As the chief operating officer, he still has to go and receive him even if he bites the bullet. ?However, when Champion, who was full of anger, saw the person coming, he couldn''t help but be stunned for a moment. He knows the person leading the team. And I have been in contact with it many times in the past. Tim Purdy. Deputy director of the Trent 900 technical team. ?However, Champion, who had stayed up for several nights, was still a little confused. After seeing an old acquaintance, his first reaction was Why was he transferred to the public relations department? ?Of course, Bodie''s future and destiny have nothing to do with him. ??However, a sudden change in a core position such as deputy project director is likely to mean huge problems for the entire project. This is completely unacceptable for the A380. So, after Bodi came forward and greeted Champine warmly, he heard the other party leaning into his ear and whispering in a furtive tone: Timmy, has something happened? Why are you not in the Trent 900 R&D team? ?The second round of high-quality rounds directly stunned Bodi who was in high spirits. He even forgot to take back the hand he was holding. After being stunned for a while, he asked in confusion: When was I no longer part of the R&D team? But they... Champien winked and gestured behind the other party. A group of people dressed clearly like a public relations team. Furthermore, technicians who are serious about aviation development will be sick from spending all day in the workshop, and they will not make such insignificant requests as "visiting the final assembly workshop". Fortunately, Bodi had already guessed at this time that the other party probably just misunderstood his purpose. So he immediately explained: I dont want to make too much noise. Most of them are from our R&D team. You know...its a critical stage and needs to be kept secret. Champine, who realized that he had made a big mistake, was a little embarrassed and had no choice but to pat his bright forehead: Okay I havent had much rest these past two days, so Im a little confused ??Then he changed the topic very smoothly: You just said that the majority is your people, that means... And of course the commercial and legal teams. Speaking of this, Bodi couldn''t help but straighten his back: "Actually, this is the main reason why I came to visit today." "Huh?" At this time, Champines remaining sleepiness was finally thrown out of the sky, and he suddenly became energetic: Is it related to the progress of Trent 900? Since Luo Luo has brought a full team of people here, it means that they believe that there is a high probability of achieving a breakthrough at the contract level. Regardless of whether it is really possible or not, since the other party has such confidence, there must have been some major progress. ? Bodi showed a confident smile: Thats right, well talk about it in detail later. Champine made a prompt decision: The conference room on the top floor is still vacant, absolutely reliable... ?However, before he could finish speaking, he was interrupted by Bodi raising his hand: No need. Just follow the normal procedures for receiving a public relations team and take us around the workshop. Obviously, the explanation about low-key just now is not just lip service... ?The group of people soon arrived at the ready assembly workshop. Because the production of the first prototype has just begun and is far from the final assembly stage, the workstations reserved for the A380 here are still somewhat empty. Only some background boards and promotional materials such as banners are left. It should be used for the celebration ceremony until the official final assembly. Mr. Champine ?However, Bodis voice stopped abruptly as soon as he started speaking. ??He noticed one of the boards out of the corner of his eye. ?There are about a dozen national flags painted on it. Of course, this is not surprising for a multi-national project like the A380. The meaning is also easy to understand. It is the country that participated in the core tasks in the development and production process of this model. But the problem is. ?There was a dazzling red color on it... ?? There was a thunder in Bodi''s head, which almost made him lose his balance and fall to the ground. Mr. Purdy? Champine, who had not heard the following for a long time, turned around with some doubts and saw Bodi staring in a certain direction with his eyes, not knowing what he was thinking. Why is there a Chinese national flag? Bodi asked with some difficulty. For a moment, he even thought that the fact that Trent 900 was looking for China as a second-tier supplier had been leaked. Champine didnt know the twists and turns here, so he just felt a little confused. He frowned and explained: "Since 1998, Airbus''s extreme environment simulation laboratory has been set up in Chengdu, China. They have participated in the anti-icing and lightning protection design of the A380... Of course, this part of the work does not account for much. The Chinese flag is placed here mainly to take care of the market over there...Whats wrong? Nonothing. Bodi shook his head and breathed a long sigh of relief: Back to business. "We at Rolls-Royce have officially confirmed that the first prototype of the Trent 900 will be delivered for test flight before March 2004. We hope that you can cooperate with our production schedule and prepare the air test platform in advance. " In fact, Airbus has an A340-300 with the left wing inboard engine removed, which is specially used for testing new aviation engines and does not require so-called "preparation in advance." The reason why Bodi said this is to target competitors. After all, there is only one test platform, which is used for the Trent 900. Then the GP7200 will either have to wait, or it will have to ask Boeing for help. Its always one step at a time, one step at a time. At that time, it will be impossible for Airbus to show favoritism even if it wants to. Second coming... It is also for the program effect. You know, in the past two years, in order to ensure the first flight schedule, Airbus has revealed its devilish nature. ??Both Rolls-Royce and the Engine Alliance have suffered a lot because of the progress. I feel very proud today. ?Furthermore, in order to avoid the suspicion of being too pretentious, Bodi added a special sentence at the end: Actually, the production of parts for this test machine has started at the end of last year and is now about to enter the final assembly stage. However, in order to keep it confidential, the progress has not been disclosed. Sure enough, as soon as he finished speaking, Champine''s whole body shook. 2004March? The latters eyes widened slightly. ?Old companies like Rolls-Royce are very good at boasting about PPT, but it is still impossible to fool around with prototypes. Hence, entering the final assembly, this is a clear time point. ??It is completely different from the previous empty talk. ?However, to be on the safe side, Champine still asked: Why is the progress suddenly so fast? Because we...uh...have obtained a new technology, we dont need to modify the plan anymore and can directly put it into production according to the earliest design. ?Poodys back straightened up even more. ??Although he once thought that it would be a bit embarrassing for the majestic Rolls-Royce to find China to OEM its core products. I was also worried about whether there would be quality hazards in the parts produced by Huaxia. I have also struggled with whether choosing a supplier outside the West will affect the reputation of users... But this moment. It doesnt matter anymore. ??It smells so good! (End of this chapter) Chapter 1059 What does extreme joy bring about sorrow? Chapter 1059: What does extreme joy bring about sorrow? Tim Purdy''s current behavior is a bit self-satisfied at best, but a little self-satisfied at worst. ?However, Charles Champion could no longer care about such details. ?As the chief operating officer of the A380 project, he was even more excited than Bodi after hearing that the Trent 900 could be delivered on time. After all, the pressures faced by both sides are completely different. As a "new century air cruise" with a take-off weight exceeding the Boeing 747, and even exceeding the An-225 in terms of volume, the A380 not only pins Airbus''s expectations to completely suppress its old rival Boeing in the field of passenger aircraft, but also attracts the attention of public opinion around the world at all times. . In most cases, especially at the beginning of a project, this focus is undoubtedly beneficial. This model once received funding and resource investment beyond commercial rationality. But the cost of investing beyond commercial rationality is that expectations also exceed commercial rationality. According to convention, the technical team will give itself some room for maneuver when disclosing the development schedule to the outside world. Because of such a large-scale project, even if the gods come, there is no guarantee that there will be no trouble at all. Just like the Trent 900. ??Although Bodi said it would be delivered before March 2004, Champine is almost certain that the other party''s internal timetable is at least a quarter earlier than this, or even more. However, on the A380, publicity needs have overshadowed technical needs. The PR department bypassed the R&D team and directly disclosed the internal plan schedule. ? And if the media just joins in the fun, it will not cause any serious consequences. The real trouble is that the overwhelming public opinion will eventually affect users who are ready to place orders There are rumors outside that the A380 will be put into operation in 2007. Now you tell me that it will be delivered before 2008. Are you looking down on me? Hence, the supply contract for the initial users was also signed before the end of 2007. In the end, Champien felt like there was a whip behind him lashing his **** almost all the time. As long as he made the slightest mistake, he would have to bear the double pressure from Party As boss and external public opinion. In this current situation, if the Trent 900 can really be delivered on time or ahead of schedule. Let him call Bodie his adopted father. Of course, Airbus and Rolls-Royce are both well-known companies in the industry, and aero engines are off-the-shelf products with special properties. They cannot be traded like black market transactions, where the managers of both parties make a deal at once. Later, the past intention agreement must be upgraded to a formal supply agreement. Especially details such as the delivery deadline and the technical state that the product must reach when delivered cannot be ignored. Otherwise, if something goes wrong in the future, youll have to wait and see. Fortunately, Bodi has a legal team with him, and they are obviously here to achieve results as soon as possible... Charlie, in order to improve efficiency, I suggest that you also organize a technical team as soon as possible to go to the Rainsway factory to understand the situation while the negotiations are ongoing. At the end of the meeting, Bodie suddenly suggested: In this way, even if there are any problems or differences during the meeting, they can be resolved through communication in the shortest possible time ?The British can come up with such a "deviant" method, which shows that Rolls-Royce is quite well prepared and is bound to win the power of the A380''s first flight. ?However, in the face of Party B who was suddenly so proactive that he began to push for updates in the opposite direction, Champine felt a little uncomfortable: "Uh...Timmy, you came too suddenly this time. Today...or in the next few days, we definitely won''t be able to start negotiations. We also need time to assess the situation and organize manpower..." ?He replied with some embarrassment: "In short...I will hand over the information and reports you brought to the group level as soon as possible, and by the end of next week at the latest, negotiations can certainly begin..." ?Pody had already anticipated the efficiency of the French before coming to Airbus, so this answer was not surprising. In fact, even the hotel room was booked directly for two weeks. ?However, he still deliberately put on an expression of "This is very difficult for me". After hesitating for a long time, he reluctantly nodded: Okay, but it has to be quick... The ground testing of the Trent 900 is in the final stages and we dont want to delay the air testing... The performance in front of Champine put Bodie in a good mood. After leaving Airbus, he quickly organized his staff and began to prepare for negotiations to begin next week. It is said to be preparation, but actually there is nothing special that needs to be done. ? In his view, and even in the view of the entire Rolls-Royce company, the Trent 900 has now made up for the last shortcoming in performance. Compared with its competitors, it only has high speed, that is, the noise control during takeoff and climb is slightly worse. But this disadvantage is not worth mentioning in the face of the huge lead in fuel economy. In addition, the basic design of the GP7200 is derived from the two engines of GE90 and PW4090. At best, this hybrid design can combine the advantages of both models, but on the other hand, it will also bring many technical problems. risk. In short, its about performance, reputation and risk. ??The advantage is huge, I dont even know how to lose! ?However, what happened next made Bodie quickly understand what it means to be extremely happy and beget sorrow... ??On the first weekend after the Rollo-Royce team arrived in France, Bodi, who had nothing to do, took a few of his men out for a round of fun as usual. When he returned to his residence, it was already approaching midnight. But the few team members who stayed behind did not fall asleep, but gathered at the door of Bodi''s room. Apparently waiting for his return. "director." ?The team assistant came forward: Two hours ago, news came from the headquarters, saying that you should return to China as soon as possible, but we couldnt contact you just now, so we had to wait here. ?This sentence directly made Bodi, who was already seven points drunk, tremble and wake up instantly: Shall I...or shall we? He shook his head, which was still a little dizzy, and immediately confirmed. Director Panos Watson specifically emphasized that you will return to China alone, and our remaining members will continue to negotiate with Airbus in France, but... ?The other party paused for a moment, then further lowered his voice: Ask us to delay as much time as possible and not to reach a clear agreement with Airbus for the time being. ??If Bodi just woke up just now, now he is breaking out in a cold sweat. As the deputy project director, it was actually nothing unusual for the headquarters to ask him to go back alone. After all, many major decisions could not be made without his presence. But at the same time, the negotiating team is asked to delay... ?Then Im afraid theres only one possibility left Trent 900, something went wrong. ??Moreover, its not a small problem. Because as Champine just guessed, the delivery time in March 2004 actually left a three-month margin. ?The sudden change in negotiation strategy shows that three months is not enough... ?Poody felt a little headache. Think about it, I just boasted so much in front of Champine two days ago, only to have my hips stretch out. This wave is obviously bound to make a fool of itself. But compared to the progress of the Trent 900, and even the future and destiny of this model, personal dignity seems to be insignificant. He took a deep breath and forced himself to calm down: When is the nearest flight ticket? I checked, it will be 7 oclock tomorrow morning. The assistant replied: However, given the weather in London, it might be faster to take the Eurostar. ?European Star is a cross-sea railway train between London and Paris, with about 6-9 departures every day. In short-distance travel like Britain and France, it is often more convenient than flying. This is especially true in harsh climate conditions. Its just that the environment is a bit worse. "Then take the train... I hope they can be more punctual than the British and German railways..." ?Pody made a prompt decision: Were going to Paris now. ? Airbus factory is located in Toulouse, southwest France, about 700 kilometers away from Paris. After saying that, he opened the door and started to pack his things while resisting the slight headache caused by the alcohol. Director Bodi, if you havent come back after the negotiations start next week and Airbus asks again The assistant also walked in. ??He didn''t know exactly what happened at the headquarters, but after Bodi left, the entire team lost the person who could make decisions, and it was definitely impossible to negotiate normally. ??If something really goes wrong, I, as an assistant, will probably be thrown out and take the blame in the end. ?However, at this moment, Bodi himself was so confused that he could not care about appeasing others, so he immediately said what he was thinking: Just say that I am suddenly unwell and unable to lead the negotiations... The headquarters may send another person to take charge, but if not, you will be responsible for a period of time..." (End of this chapter) Chapter 1060 Trent 900, something big happened Chapter 1060: Trent 900, something big happened ?Pody hurriedly hurriedly and slowly arrived at the No. 58 test bench in Derbyshire on the afternoon of the next day. The fourth and final ground demonstrator of the Trent 900 is undergoing the last few simulation tests here. When he first walked into the testing center, he didn''t even notice anything unusual at first glance. Unit No. 04 is fixed on the hanger of the high-altitude platform as usual. The huge titanium alloy fan faces the door and is rotating at an extremely slow speed. It seems that he has just finished a test and has not completely stopped. ??If he hadn''t found that almost all the leaders of the technical team were around the test bench, Bodi would have even thought that this was an ordinary afternoon in the test center. ?For a moment, Bodie even wondered if he was worrying too much because he was drunk last night. Perhaps... maybe it''s just a normal technical meeting? He still held some luck in his heart. ?However, after walking a few steps to the side, the scene in front of him shocked Bodi and stopped him instantly - Compared to the front which looked intact, the rear part of Unit 04 was almost completely destroyed. ??The entire engine pod was torn apart by huge external forces. The space between the fan and the medium-pressure compressor was filled with carbides left after high-temperature combustion, and the structure was almost indistinguishable. ??The combustion chamber and turbine parts seem to be complete, but if you look closely, you will find that there is a huge gap in the upper part of the casing corresponding to the medium-pressure turbine and low-pressure turbine structures. The internal structure is probably a mess... Not only the engine itself, but also the test bench suffered huge damage. Fortunately, the hanger structure was strong enough to prevent the engine from falling directly to the ground from a height of nearly ten meters, causing secondary damage. Otherwise, the problem may become even more unmanageable... Timmywere in big trouble. ? Panos Watson, the R&D director, was standing not far from the test bench wearing a safety helmet, with a terrifyingly gloomy face. ?At the same time, test engineer Georgia Wilson also came to Bodie with a record sheet and began to report the situation in a heavy tone: Yesterday afternoon, Unit 04 was undergoing a low-temperature working test of -50C. Just when the whole process was about to end, the engine oil temperature sensor suddenly alarmed. "The staff immediately prepared to perform shutdown operations in accordance with the operating regulations, but the oil temperature and engine speed were not controlled as expected, but continued to rise... Less than two seconds later, the turbine part exploded, and the medium-pressure and low-pressure turbine blades It broke and penetrated the casing and engine nacelle under the action of extremely high centrifugal force. "One of the pieces hit the command transmission equipment of the test bench by coincidence, causing the subsequent control and sensor signals to completely fail... Fortunately, the valve in the fuel pipeline has an emergency cut-off design, which automatically cuts off the fuel supply after losing the control signal. It did not cause the entire engine to be completely burned and damaged..." ??Although Bodi had made various psychological preparations on the way back, the situation before him was still much more serious than he imagined. ?Especially when Wilson said the last part, Bodie was so frightened that he almost lost his balance and fell to the ground In order to prevent the accident from getting completely out of control, the test workshop installed a high-expansion foam fire extinguishing system similar to many hangars. ??If the fire expands enough to activate this set of equipment, many traces of the accident will never be restored. ?Of course, the current situation is only slightly better than the worst. If the problem cannot be identified in a short time, the development schedule of the Trent 900 may have to be postponed indefinitely. And even if we find out... It may also take a lot of time to solve the problem. For a time, there was silence in the huge testing workshop. Sothe problem is with the intermediate pressure turbine and the low pressure turbine? ?Pody took over the report from Wilson, but because of the loss of data in the second half, it was difficult to quickly analyze any particularly valuable information from it. ?However, he immediately suspected the low-pressure turbine part produced by Huaxia OEM. ??Of course there is some kind of stereotype at play here, but to say it is completely prejudice... Not really The application of titanium alloys in the hot end of aeroengines is the first time. Even the low-pressure turbine with the lowest operating temperature has a much harsher environment than fans and casings where titanium alloys are widely used. In this case, new thermal barrier coating technology and film cooling technology are also applied to the turbine part. In fact, when it was decided to hand over the production of high-pressure and low-pressure turbines to China a year ago, someone in the technical team suggested that for the sake of safety, the base material of the low-pressure turbine should also be changed to a traditional nickel-based alloy. But in the end, after voting, the titanium alloy plan was retained with a slight advantage. The concentration of various risks together is indeed the place where problems are most likely to occur. However, after Wilson thought for a moment, he still shook his head: ???"It''s hard to say." What ultimately caused huge damage to the engine was indeed the mid- and low-pressure turbine blades that shattered and flew out, but if we delve into the source of the accident... we still cant draw a conclusion. "Our test engineers have found more than 4,000 pieces of debris around the test bench, nearly 100 of which are embedded in the roof of the test center. They have not been collected yet. I am afraid we will have to wait until the engine debris and the analysis of these debris Only when it is over can the true cause of the accident be given. Bodi subconsciously raised his head and noticed that there were several ladders set up around the test platform. Several staff are collecting the debris left by the accident at a height of more than ten meters... ? He took a long breath and rubbed his eyes that were swollen from fatigue and stress: Isnt there a more efficient way? The accident during the test is not an air crash, and the procedures are generally not very strict, as long as the problem can be found. But correspondingly, the number of manpower responsible for investigation will be much smaller. I cant guarantee that. ?Wilson shrugged: "If you''re lucky, the first part you pick up may be the problem, but if you''re not lucky...even if you read them all, you may not be able to draw an intuitive conclusion." The atmosphere was once again as quiet as death. Until a female voice came from somewhere: "I suddenly remembered that when the Chinese people sent those samples over a few months ago, they specifically mentioned that the medium-pressure and low-pressure turbines lacked locking structures. After the turbine shaft breaks, it will easily cause the turbine rotor to over-rotate... If we are in Can such an accident be avoided by adding this design to the turbine shaft? The speaker was Lea Lapworth. As the director of computing science, although she was also involved in the design of the Trent 900, she was not a member of the R&D team. Even in terms of level, she is on the same level as Panos Watson. So, and care about the other person''s face like other people. As soon as he finished speaking, several sounds of inhalation came to mind one after another. Immediately afterwards, almost everyone turned their attention to Director Watson. The latter also looked embarrassed. At that time, it was he who made the decision without thinking and vetoed the opinions put forward by the Chinese people. And we also vowed that our Trent 900 is advanced in design and well-made, and there will be no problem of turbine shaft breakage. result The almost-wrecked engine next to it was a silent slap in the face. Ahem ???? Realizing that something was wrong with the atmosphere, Bodi quickly smoothed things over: Dr. Lapworths statement is not appropriate either The function of the anti-overrotation design is to prevent further losses after an accident occurs. The prerequisite for it to work is that the turbine shaft is broken... Even if the Trent 900 is installed, the accident itself cannot be avoided. As Dr. Wilson just said, the starting point of the accident may not be the turbine part, so in the final analysis, we still have to find the source of the safety hazard..." Actually, everyone knows that Bodies words are a bit arrogant. After all, if the turbine blades did not fly out and penetrate the casing and nacelle, then the entire engine would have remained largely intact, and there would be no possibility of thousands of fragments, and the sensor signal would be even less likely to be cut off midway. Accident investigation will obviously become much easier. ?Of course, at this point, it is already too late to say these things in hindsight. ?Anti-overrotation design will definitely be added to the Trent 900 in the future, but the premise is that the entire project can continue to operate... So, Lapworth just curled his lips and did not continue to delve deeper. "one way or another" ?Taking this opportunity, Watson quickly changed the topic: Contact China first, and then order a batch of samples of low-pressure turbine blades. We may need to perform an accident restoration... (End of this chapter) Chapter 1061 The British must be allowed to tell the truth! Chapter 1061 The British must be allowed to tell the truth! ?Engine testing is still a purely corporate activity, and the explosion of the Trent 900 has not turned into a public disaster. Therefore, Rolls-Royce had no obligation to announce the accident itself or the investigation results. Instead, it blocked the news from the outside world as soon as possible and interpreted the loud noise made during the explosion as the pulse detonation engine was being tested. Only the core personnel involved in model development and testing can understand the specific situation. It should be said that the British are quite efficient in this kind of thing. ? Even Bodi didnt know what happened before returning to China. But after all, there is no airtight wall in the world. ?Furthermore, the act of blocking news itself will reveal a lot of information. ? Within a few days, good news media had already appeared around Derby County, hoping to glean some useful news. ??Some tabloids that are not afraid of big things have begun to publish articles suggesting that some projects of Rolls-Royce have encountered "major setbacks." Fortunately, the No. 58 test bench is not a separate device, but is located in the same park as the earlier No. 57 test bench. The two sides combined can accommodate up to 10 engines, and four of them can be tested at the same time. The pulse detonation engine previously claimed by Rolls-Royce is indeed true. Therefore, the outside world has not yet found clear evidence and can only stay at the stage of speculation and suspicion. ?Only Airbus does feel something is wrong - From the beginning of the second week of negotiations, the leader Bodi disappeared and was replaced by a so-called "powerful negotiator" whom he had never seen before. However, as long as the topic between the two parties involves key points related to the contract details, the other party will either ignore the other party, or make some excessive demands that are obviously looking for trouble. So that several days passed without any progress. Some people have begun to speculate whether something happened to the Trent 900 as the outside world said. But first of all, they have placed too many expectations on Luo Luo, and subjectively they are not willing to accept such speculation. Secondly, this negotiation was started at Luo Luo''s initiative, or even at his urging. Indicates that the other party should have sufficient confidence. ? Could it be that there was no warning at all, that an accident suddenly happened in the past few days? No way? ? In comparison, it is obviously a more reasonable analysis for competitors to manipulate the media to maliciously slander. ?This made Airbus a little undecided for a while. In short, in the first two or three days after the explosion, everything seemed calm. But all those familiar with the matter knew that this calm was only temporary. If they can find and solve the problem in a short time, everyone will be happy. ?Even if this matter is revealed in the future, it can be made a good story. But if it takes too long... ?The momentum created in front of him turned into a boomerang and pierced his head. Therefore, Panos Watson ordered a new batch of turbine blades as soon as the accident occurred. It is said to be an order, but in fact there is no need to go through the negotiation process again. Since Rolls-Royce''s order volume has been quite stable in the past few months, the two parties have also modified their cooperation model in order to improve efficiency. Rolls-Royce can increase the order quantity at any time according to its own needs, while China Aerospace Power Group will provide products based on the previously signed contract, and the two parties will settle the payment every six months or one year. Hence, simply contact the other party and submit a new order. According to past experiences, it is usually available within 7-10 days. When the time comes to catch up quickly, the cycle can even be shortened to five days. In Watson''s view, this is an efficiency that can only be achieved by sending spot goods. It is very likely that the other party has prepared a large quantity of goods in advance, and as long as he places an order, they will be shipped immediately. This time should be no exception. In fact, his guess was quite accurate. ?After the completion of Haofa Groups laser processing production line, the output of turbine blades has exceeded Rolls-Royces order quantity. So, unless there is a large one-time order, it can be shipped directly from the warehouse. ?However, the situation this time is different... On the other side, China. ?Shortly after Tim Purdy contacted China through the Ciro Group. Chang Haonan, who was busy sorting out data in the Torch Laboratory, received a call. ?He frowned and prepared to transfer the call to Liu Chenchen Since returning to the capital, he has begun to live a solitary life. On the one hand, Turbofan 20 has basically met the conditions for project approval, and the research and development of QC300 has also entered a critical stage, which requires him to maintain attention at the technical level. On the other hand, we are also waiting for the final plan for the reorganization of the Commission of Science, Technology and Industry for National Defense. There are rumors that Chang Haonan may directly assume important positions in the new department after the reorganization. But at Chang Haonan''s current age, even from the perspective of handling special cases, it is unlikely to go further. After all, state-owned enterprises and government agencies are both within the system. But if you really want to compare it, the difference is quite big. It is not difficult to guess that a lot of eyes are focused on him. It is better to keep a low profile. Hence, most calls, unless they are absolutely necessary, are handled by three secretaries. ?However, just when Chang Haonan was about to press the transfer button, he caught a glimpse of the extension number on the caller ID. From Haojing. The calls from there are basically purely technical or project issues. So, after hesitating for a moment, he directly picked up the receiver. ?A familiar voice soon came from the other side: Mr. Chang, I am Zhang Zhenhua. Of course Chang Haonan also heard the other partys identity: I know, whats the matter? Generally speaking, people in the Aerospace Power Group do not contact the laboratory directly, and they all relay information through Zhang Liangping. Zhang Zhenhua also got straight to the point: We just received an order request from Ciro Group not long ago, but this time the order interval has been shortened by half compared with before, and... At this point, he paused slightly, but quickly continued: And Ciro Group requested that the delivery be delivered to them this time, rather than directly to the UK. We are discussing whether to agree to this request from Ciro ?Chang Haonan also immediately heard something was wrong. Siro Group actually only plays a white glove role in the cooperation between the two parties. In other words, the turbine blades produced in China are washed and turned into "self-produced" by Rolls-Royce. So, except for the first few trials, the delivery process does not require this middleman at all. The aviation power group directly interfaces with Huaxia Customs. Due to the special status of the former, this method can also shorten the customs declaration process as much as possible. The magical delivery cycle of 7-10 days is partly due to this. ?Now that the Ciro side suddenly requested to stop the goods, although it is not illegal, it is obviously not normal either. Whats their order quantity? ?Chang Haonan did not give an answer immediately, but asked instead. There was a brief silence on the other end of the phone, and then there was the sound of turning pages of paper. Soon, Zhang Zhenhua reported a very small number. Not even enough for an engine. ?Chang Haonan quickly made a judgment. At the same time, a reasonable guess was also formed: The order quantity is small, and it has to be handed over directly to Ciro Group. Maybe it means that they are not going to go through the customs declaration process, but are going to send it back by carrying it with them? For small quantities of items that cannot be smuggled, this is definitely faster than all logistics methods. If you get spot goods, even two days is enough. ?Zhang Zhenhua also suddenly realized: So, does it mean that the British side is so urgent this time that they dont even want to wait for a week? Thats right Chang Haonan certainly didnt know about the twists and turns between Airbus and Rolls-Royce at this time, but as a reborn person, he knew about the design of the Trent 900 from the beginning...or the quality defects. ??In the previous Qantas QF32, the turbine blades penetrated the casing and then destroyed the aircraft itself. It has almost become a typical example of engine non-containment accidents. Hence, it is reasonable to speculate that in this timeline, they may have encountered a similar situation during the testing process. The urgent purchase of a small batch of blades is probably for the purpose of restoring the accident situation. Lao Zhang. ?Thinking of this, Chang Haonan felt sleepy instantly: After all, Ciro Group is Party A on paper. As long as it does not conflict with the content of the contract, we have no reason to reject them. "But" ?Zhang Zhenhua obviously wanted to refute something, but was directly interrupted by Chang Haonan: Listen to me. The latters voice was obviously excited: "They are playing with the contract, so we can also play with the contract. Just tell the two British people from the Ciro Group that there happens to be no ready goods to ship this time. We need to wait for the new batch of products to come off the assembly line and wait as long as the contract allows. Maximum delivery time! Hmm...ah? ?Zhang Zhenhua called me just to seek safety. The result was an unexpected instruction. The things here are more complicated... Its not easy to explain at the moment. Anyway, Luo Luo is very anxious this time, and its obvious that something big is being hidden from us. We have to find a way to get the British to tell the truth! (End of this chapter) Chapter 1062 Request to participate in the accident investigation! Chapter 1062 requires participation in the accident investigation! ?Chang Haonan''s operation itself is actually unintentional. But the effect is outstanding. ?Zhang Zhenhuas feedback about no stock was quickly sent back to the UK through Ciro Company. ?The moment he heard the report, Panos Watson''s blood pressure immediately spiked. ??If he hadnt quickly held onto the table next to him, I might have performed a show with his hands spread out on the spot and lost his breath. After a while, Watson regained his vision before slowly sitting back on the chair next to him: Out of stock? Tim Purdy, who was standing opposite, could not help but breathed a sigh of relief when he saw that his supervisor could still speak normally: Thats right. He nodded and continued: "Huaxia said that their process has minimum production quantity requirements for each batch, so the previous orders were actually based on the batch of products that went offline in January this year, and they were all used up after the last shipment. " "As for the new batch of products... the production cycle is arranged according to our past ordering rhythm. Since this time the order is in advance, there is no preparation at all... However, the other party also assured us that the delivery will be completed within the period stipulated in the contract. Absolutely There will be no breach of contract Watson was so angry that he couldn''t say anything. He trembled for a long time before he punched the table angrily: The period specified in the contract? The delivery period stipulated in the contract is two months! If we wait until two months later, the Trent 900 will be completely destroyed! However, anger is anger. Besides venting, there really seems to be nothing that can be done. The Chinese peoples explanation is reasonable from both a technical and commercial perspective, and its not even a situation where you know the other party is doing something wrong but you are helpless due to procedural issues. But there is not even a point of refutation to be found. But now there is really no way to wait another two months ? It will certainly take a long time to find out the root cause of the accident, but at least it must be 100% sure that it has nothing to do with the most critical core part of the aircraft before negotiations with Airbus can continue. Otherwise, even if the French were brave, Watson himself would not dare to install the Trent 900 casually. With no other choice, he had no choice but to try a trick: If we add extra money, can China meet the construction deadline and deliver it ahead of schedule? As a result, Bodi directly gave a negative answer: "We asked, and the other party said that the production line is currently operating at full capacity, producing other products that were ordered earlier. Unless there is a sufficient and reasonable reason, they will not accept additional money or modify the production arrangement, which will affect them. business reputation. ? Seeing that the other party had shown their spirit of contract and business reputation, Watson could not say anything else. You cant just say that as long as you pay sufficient liquidated damages, the spirit of the contract is nonsense, right? For a while, there was a bit of silence in the office. After a while, Bodie, who was sure that Watson was completely lost, tentatively spoke: I think the best way now is to inform the Chinese side of the accident involving the Trent 900 ?Unsurprisingly, Watson interrupted him halfway through his words: No, absolutely not! If this kind of news spreads, it will have a devastating impact on the confidence of partners and the companys stock price! But if it continues like this, the whole world will know about it, right? ??Pody became calmer at this time and analyzed to Watson: Actually, the Chinese people are now responsible for the production of the core components of the Trent 900, and the profits are quite generous. On the contrary, among the various forces, the interests are the most consistent with ours. "If the Trent 900 continues to be delayed...or even canceled because the accident investigation results are not available, the Chinese people will not only lose orders, but also due to rumors from the outside world, someone will definitely attribute the cause of the accident to the turbine blades they produced. It has a greater impact on their reputation. So, there is no reason why they would take the initiative to leak this news, and they would even be more concerned about keeping it secret than we are The latter''s eyes gradually changed from determination to hesitation, and he had obviously begun to think about the feasibility of this proposal. In fact, from a rational perspective, Watson also knows that he really has no second option. ??It''s just that he sternly rejected the Chinese people''s reminder before. Now if he reports the accident situation to the other party, it will inevitably be regarded as amusement. ?But then again, it is better to be treated as amusement by partners than to be treated as amusement by competitors in the future. Bodi, who is proficient in observing words and expressions, also continued at this time: By the way, supervisor, last time you asked me to reply to the letter from Huaxia, I actually forgot to send it out Actually, Bodie felt that the letter was too violent, so he took it upon himself to stop it. ?However, in front of the leader, you must not directly admit that you deliberately failed to implement it. So it must be forgotten. And his words undoubtedly became the last stone that broke the camel''s back...the last big stone. Watson''s complexion suddenly turned from gloomy to clear. ?Of course, for the sake of reserve, I still pretended to hesitate for a while before finally nodding: Forget itjust do as you say. "Go to Huaxia in person and briefly inform the other party of the situation. You must emphasize that the new turbine blades are the core of our accident recovery and clarifying the truth. They must be delivered as quickly as possible, otherwise once the incident escalates, for It will be a huge loss for both of us..." The future of the Trent 900 is related to his own future and destiny, so Bodi naturally moves very quickly. ??Furthermore, he had already held a position at Xiro Company before, so the Chinese visa had a very long term and he did not need to reapply. So the next day, he arrived in Haojing and explained the accident of Trent 900 to Zhang Zhenhua. Just a little bit of beautification. ?For example, they have previously approved the proposal put forward by China, and this time they want to test the possible consequences of turbine overspeed. The consequences turned out to be more serious than imagined, which led to the accident. These contents were quickly fed back to the capital in their entirety. You must know that the Trent 900 turbine blades are a supply chain product that is of great concern at the group level. Now that an accident has occurred, even if there is no evidence that the cause of the accident is related to Huaxia products, it is a major event that cannot be ignored. At least Chang Haonan cannot make the decision alone. So that night, at his suggestion, the Aerospace Power Group held a meeting overnight to discuss strategies to deal with the matter. Of course, it is said to be a discussion, but everyone can guess that Chang Haonan probably already has a draft, but it just needs to be decided at the group level. Therefore, after a brief opening remarks, Zhu Linyu directly pointed to Chang Haonan: "Comrade Haonan, I specifically asked Haofa Group, and they said that there are actually enough remaining samples in the warehouse, so... it should be that you specifically asked them to delay the delivery time?" "Yes." Chang Haonans answer was concise and concise: I think this is an excellent opportunity. If done properly, we will have the opportunity to participate more deeply in international aviation industry cooperation! ?Originally, this late-night meeting even seemed a bit boring. ?Especially for several non-technical leaders, they are here just to make up for the vote, which can even make them a little sleepy. But as soon as his words came to light, everyone suddenly woke up. In-depth participation in the international aviation industry. It can be said that the most important node on Chang Haonans career was the series of aviation industry cooperation agreements signed with the European Union in 1997. So, no one will think this is an exaggeration. ?They all adopted the attitude of "Speak quickly, I''m listening". I would like to propose to Rolls-Royce that we participate in the investigation of this Trent 900 accident! ?Chang Haonan said firmly. On the one hand, the Turbofan 20 project is about to be established. Although it is impossible for Luoluo to let outsiders have access to the core secrets, an investigation team can gain some experience by going there. "On the other hand, and more importantly, the British cannot hide this accident forever. At least they must disclose the true situation after all the dust has settled. By then, the whole world will realize that we, China, are in Trent The huge role played by 900 can also further improve our image in the international aviation industry! ?This operation was completely beyond everyone''s expectations, and it also caused a period of confusion. As a core supplier, the requirement to participate in the accident investigation is quite reasonable. The results described by Chang Haonan are indeed great. ??If Trent 900 now publicly advertises that its core components are manufactured by China, then many interested users will probably choose the other company. If you wait until the Trent 900 is recognized by users and then tell them that it uses core components produced by Huaxia, the effect will be completely different. But the problem is But Comrade Haonan, what you just said is based on the premise that the cause of the accident will be found out in a very short time, right? ?Lin Zuoming said doubtfully: If this matter drags on and there is no result until it is disclosed by the media, wont our image as a core supplier of turbine parts become even worse? This is true. Unexpectedly, Chang Haonan nodded without thinking: It is impossible to quickly improve our countrys industrial status without taking risks...and even if we do not participate in it, the consequences that Mr. Lin said will not be alleviated much. "also" ?He took a deep breath and sat up slightly: I have seen some of the design plans for the Trent 900, and I am at least 80% sure that the root cause of the accident can be found! (End of this chapter) Chapter 1063 It will be ready in seven days Chapter 1063: It will be ready in seven days In fact, when Chang Haonan finished the first half of the sentence, everyone present was basically convinced. After all, those who were able to achieve the leadership position of the Aerospace Power Group in the early 21st century must have experienced various cooperation projects in the so-called "honeymoon period" in the 1980s, except for a few special circumstances. So we all know a little bit about the nature of Western countries. ??If the cause of the accident cannot be found out as soon as possible, even if Rolls-Royce does not take the initiative to add fuel to the fire, public opinion will eventually put the blame on China. And the reason is not easy to refute As a model derived from a mature product, the Trent 900 has been uneventful for more than three years since the project was launched in 1999. As a result, less than half a year after Huaxia participated, it suddenly exploded without warning. Taiwan, and the explosion happened to be the turbine part you were responsible for producing. You say it has nothing to do with you, who would believe it? Whats more, as a British company, there is no guarantee that Luoluo will not become a troublemaker and abdicate its own responsibilities. So, the only way to prove one''s innocence is to join the investigation as Chang Haonan said. This way you can at least take some initiative. But before everyone could express their stance, the second half of his sentence was blocked by everyone... Especially Zhu Linyu. He adjusted his sitting posture almost subconsciously, leaning his upper body slightly forward in the direction of Chang Haonan: 80% sure? In fact, in most cases, the expression "X is sure" is a casual reference. As long as it is not 100%, it cannot be taken as true. ?However, Chang Haonan had a glorious history of identifying M88 problems through the air before, so he really let Zhu Linyu ignore all the above problems: Can you elaborate on it? "Um" In fact, Chang Haonan himself was quite convinced, and it was only out of humility that he did not say anything. But the basis of his judgment is, after all, based on the experience of his previous life. ?Now I suddenly have to explain it, and I really have to organize some language. After thinking for a few seconds, Chang Haonan continued: "Actually, it''s nothing special. Mr. Lin, who is in charge of business, should know that as early as the end of last year, I asked Haofa Group to remind Rolls-Royce that the Trent 900''s turbine has design flaws. After the turbine shaft breaks, it is prone to sudden loss. overload." He said and tapped the meeting report on the table: Although Rolls-Royces description of this accident is somewhat ambiguous, considering that the other party required us to provide low-pressure turbine blades as soon as possible for accident recovery, it can be determined that this is the problem. "But as I just said, the prerequisite for causing over-rotation and causing the turbine blades to be thrown out is the fracture of the turbine shaft, and such an outrageous problem of broken shaft is most likely caused by external forces on a relatively mature model like the Trent 900. Combined with the abnormal temperature signal finally returned by the sensor, the inspection scope can be directly reduced to the accessory system outside the receiver, or to be more precise, the oil pipeline..." Actually, Chang Haonan can be more precise. The root cause of the QF32 accident in the previous life was that a short lubricating oil pipe installed on the medium and high pressure turbine bearing casing was not processed properly. Under harsh external conditions and frequent driving and parking, this short pipe eventually broke, and the leaking oil caused a fire, which eventually caused the turbine shaft to lose strength and break. Afterwards, Rolls-Royce inspected another 53 Trent 900 engines and found that the short oil pipes of 11 of them did not meet the requirements like the one that caused the accident. The processing and inspection records of the other 42 engines could not be found. In other words, this problem is not an isolated case, it was just caught up by the unlucky Qantas. At present, in this timeline, except that the supplier of high and low pressure turbines has been changed to China, other parts have not changed. It is also normal to be induced in advance during the test. To a certain extent, it can even be said to be a good thing - It is better to explode on the test bench than to explode in the sky. ?Of course, he can only recall these contents in his mind. Delineating a scope of investigation can be regarded as reasoning. But directly pointing out which part number the problem lies in, it would be a bit of a leap of faith. Even now, the effect is already quite obvious. ? Lin Zuoming, who had been hesitant just now, made a 180 turn and immediately expressed his agreement. ?Even, he was asked to personally serve as the leader of the investigation team. But in the end, Zhu Linyu rejected it. First of all, we are currently in the critical stage of the reorganization of the Science and Technology Committee. As the de facto second-in-command of the Aerospace Power Group and the most likely successor to the first-in-command, it is really not suitable for him to go abroad casually. Second coming... ?Although Lin Zuoming is in charge of technical work, he only knows a little more than several other deputy general managers who are completely non-technical. Essentially, I havent been responsible for specific research and development work in more than ten or twenty years. If you really want to lead an investigation team, it will still be a layman commanding an expert. Of course, this second reason is put more euphemistically. But it still filled the conference room with a happy atmosphere... Finally, it was Chang Haonan who brought the matter to an end: Mr. Lin, in fact, only one person can be the leader of this investigation team. Who? ???Lin Zuoming was obviously still regretting the lost opportunity to show off. Ren Bingda, the deputy general manager of Haofa Group, is also the person in charge of the Chinese side of Xiro Group. Chang Haonan replied: "The high and low pressure turbines of the Trent 900 are officially produced by the Silo Group. Haofa only accepts subcontracting and is responsible for the OEM. So in any case, Rolls-Royce will not agree to the fact that we people are responsible for the production." Participate in the investigation. Only Comrade Ren Bingda, by virtue of his position in the Ciro Group, is not so sensitive to the British, so he will have a certain amount of room for maneuver..." After a whole night of discussion and planning, the group headquarters finally sent a rough action plan and requirements to Haofa Group before going to work the next day. ?Zhang Zhenhua and Ren Bingda also conveyed Chang Haonan''s request to Tim Purdy in its entirety. The latters initial reaction was probably almost the same as Chang Haonanhes. This is impossible! Bodi showed an expression as if he had eaten a fly: At the contractual level, there is no direct relationship between your group and Rolls-Royce. If a Chinese face appears in the accident investigation team, we will not be able to explain it to the board of directors. ??Although it was he who suggested to Panos Watson that he could disclose the general circumstances of the accident to China in order to urge the latter to deliver the next batch of turbine blades as soon as possible. However, the proposal definitely does not include involving the other party in the investigation. But Mr. Purdy. ??Ren Bingda had a brilliant idea in his hand, so he was naturally unfazed by it. He just smiled and pointed out the loopholes in the opponent''s logic: As you said yesterday, if the investigation does not produce results for a long time, then our participation in the production of Trent 900 as an OEM will be made public sooner or later, right? Although this may indeed cause our reputation to be damaged, if we really want to say it, Im afraid its your group...or Mr. Bodi, your personal losses will be more serious, right? ??Podi immediately froze on the spot. The previous sentence was exactly the reason he gave yesterday when he persuaded Zhang Zhenhua to jump in line to arrange production. As a result, after one night, it turned into a boomerang stuck in my back. ?Furthermore, what Ren Bingda said was exactly what he was most worried about. Involving subcontracting in the production process can be a big or small matter. If everything goes well, of course everyone is happy. ??But if it really comes down to the top, he, the deputy director, is undoubtedly the most likely position to be pulled out of the job. But then again. ??If a Chinese person participates in the investigation, even if the results are found, he is still likely to take the blame... ??Just as heaven and man were fighting in Bodi''s mind, Ren Bingda calmly turned the notebook in front of him to the next page: "Actually, Mr. Bodi, the size of our delegation does not need to be very large. It only needs three to five people. Moreover, the members are headed by me, and they are all staff of the Ciro Group..." The meaning of this sentence is obvious. ??It means that there will definitely be no procedural loopholes, eliminating Bodis worries about being settled. ?However, the latters suspicions are still not so easily cleared away: Three to five people? As far as an accident investigation team is concerned, even with limited participation, this scale is really too small. Uh...thats right. In fact, Ren Bingda was also a little confused about this number, but Mr. Chang emphasized repeatedly in the morning that scale is not important. Success is considered successful if someone passes it, so he quickly nodded firmly and explained: "In fact, we also considered that the accident involved a product we produced. We must personally rule out the possibility of defects in the turbine blades before we can be considered responsible for the product for life. That''s why our superiors asked us to be a witness, so it doesn''t take too long. On a large scale, it will not interfere with your normal investigation work..." And only in this way do we have sufficient reason to suspend the current production tasks..." Verbally, you can naturally say a lot. ??Anyway, as long as we can successfully intervene in the investigation, Luo Luo will not have the final say on what happens next. What''s more, Ren Bingda''s promise was only not to "interfere" with the investigation. I didnt say it wouldnt affect ?I will give you the investigation results directly, so it wont be considered an interference, right? In short, after some verbal attacks, Bodi, who had already relaxed his attitude, finally completely declined and promised to report China''s requirements and wait for the final decision of the project manager, but there is no guarantee that it will be approved. That''s what I say, but everyone knows that the so-called "waiting for a decision from superiors" is just an excuse for buffering. ?However, for the sake of safety, Zhang Zhenhua, who had been silent before, still added that one hit will kill: Mr. Purdy, I hope you can give feedback to your superiors. Our investigation team will personally bring the turbine blades you ordered to the UK. The fastest... it will be in place in about seven days. (End of this chapter) Chapter 1064 What kind of waves can three people make? Chapter 1064: What kind of waves can three people make? Now that the matter is over, there is no suspense about the outcome. There are only zero and countless times of compromise. From the perspective of Panos Watson, who is about to get imminent, Chinas so-called investigation team is not large in scale, and it all bears the name of Ciro Company. They also say that they can complete and deliver the goods within 7 days in advance. Its not that its unacceptable. ??Anyway, we already have a lot of troubles in front of us, so we dont care if we have a little more. What''s more, Bodi''s words also have a very obvious tendency to induce. In short, after a short discussion, the two decided unanimously to agree to China''s request. ?Of course, I dont agree casually. There are additional requirements. First, the scale cannot exceed four people, and after arriving at Rolls-Royce headquarters, all investigation activities must first obtain permission. Second, the blades must be delivered before returning to England. Since the Bodi people are in China, they can be handed over to him directly. ?Three, you cannot enter the test area where test benches No. 57 and 58 are located. After all, in addition to the Trent 900 that has been transferred, there are many other top-secret models that are still in the concept stage. ?For example, the detonation engine that was previously blamed for the blame, and the zero-emission aviation engine that uses hydrogen energy as fuel, etc. Let alone Chinese people, Americans cannot show them casually when they come (probably). To put it bluntly, I still have a bit of the past mindset and feel that the Chinese people definitely want to take this opportunity to steal technology. But in fact, although Chang Haonan''s purpose was to accumulate experience for the Haofa Group, he already had a rough draft of the basic plan for the Turbofan 20. There was really no need to go back and reverse engineer the design of Luo Luo. . So for him, these two requests made by the British were basically equivalent to nothing, and he immediately asked Ren Bingda and the others to agree. So, seven days later, a three-person Chinese delegation headed by Ren Bingda took twenty low-pressure turbine blades and boarded a flight to the UK together with Bodi. Along with the leaves, there are three tips given by Chang Haonan before leaving... ?Of course, its just a way of saying it. Its not really for Ren Bing to break it up after arriving in the UK... ??When a few people landed in London and then arrived at Rolls-Royce headquarters in Derbyshire via transit, it was already the early morning of another day. The continuous travel from France to England to China for many days made Bodi a little unbearable, so his original plan was to rest for a night and hand over the blades and people to Watson the next morning. But the Chinese trio, who had been recuperating for a long time and were just waiting to perform in front of the British, would naturally not agree. ?And Bodi didn''t dare to let them run around alone. In the end, I had no choice but to endure my fatigue and go to find Georgia Wilson overnight. The latter was originally the engineer of test bed No. 58 and was responsible for all ground tests of the Trent 900. Since something happened on the test bench, the entire investigation was naturally handed over to him. Director Bodie...you are finally back. ??Although Wilson said Bodi''s name, his eyes were fixed on the large lockbox in the latter''s hand. Obviously, he is still more concerned about the recovery of the subsequent accident than Bodi. In recent days, more and more media have appeared around us, and even Airbus has begun to contact us directly, obviously out of suspicion... ??While taking the lockbox, he complained about the current situation. But just as he stood up, he was interrupted by a cough from Bodi: Qiao, I have a few more people I want to introduce to you. It was only then that Wilson raised his head and carefully observed the other three people following Bodie. It is early morning in the UK in April, and the temperature is still a bit cold. Therefore, the three of them, Ren Bingda and others, all dress up in British standards. If you dont pay attention to the skin color, it looks like the most ordinary old British Union Jack. "Is it...the delegation from China?" In fact, Watson had already told Wilson about this a week ago. ??It''s just that the latter didn''t expect that the other party would come over at this **** time. Strictly speaking, we are now the Trent 900 accident investigation team sent by Ciro. Ren Bingda took the initiative to take two steps forward and introduced himself in English that was not particularly proficient: My name is Ren Bingda, and I am the leader of the investigation team. If you need any cooperation or help, you can communicate with me. Welcome. After hesitating for about half a second, Wilson raised his arm and shook hands with Ren Bingda. Then, he raised the password box he was carrying in his other hand and gestured: But I think... being able to deliver these blades in the shortest possible time is already the greatest help to us. Obviously, he did not think that just three Chinese people could play a decisive role in restoring the truth of the accident. In fact, Wilson himself has basically determined that there is no quality problem in the turbine structure itself, but it is external damage that causes the speed to exceed the limit, and eventually the blades are thrown off and penetrate the casing. ??Its just that the source of this external damage cannot be determined in a short time, so additional experiments are needed to prove ones point of view. "But we don''t think so..." Looking at Wilson, who seemed to be unsophisticated and looked like a standard engineer, Ren Bingda stopped talking in circles: At the very least, we need to witness the entire investigation. ?Wilson raised his head and looked at Bodie with pleading eyes. ??The latter was already sleepy-eyed at this time, and just wanted to get rid of the trouble at hand, so he shrugged helplessly: No way, the agreement is indeed like this. Their individual activities require our permission, but they must also participate in the entire investigation process. He paused for a few seconds and then gave a special instruction: The final investigation conclusion also needs their signature to be complete The meaning is very clear, that is, at least not to offend too severely in terms of face. Wilson, who had no room for maneuver, rolled his eyes and nodded: Okay Then you come with me, but you cant touch the engine parts without my permission, even the wreckage. You cant read relevant documents at will, you cant enter and leave the investigation site at will, and you cant take pictures ?? He mentioned more than ten items in a row, completely treating the three of them as visitors who could only cause trouble. ?Ren Bingda even wanted to choke back. But after thinking about Chang Haonan''s special instructions before the trip, he still took a deep breath and managed to calm down. You will know who is useless in a few days He thought angrily in his heart. Soon, the three of them followed Wilson to a workshop specially set aside for accident investigation. Almost as soon as they entered the door, they were shocked by the scene and almost stopped in their tracks - An engine with its rear half almost broken, is placed on a bracket. And around it, there are densely packed, at least thousands of pieces of various fragments... Or, wreckage. Breaking, twisting, melting There are many ways of damage. A considerable part of them cannot even see their original functions and appearance. This is also the most troublesome part of the accident investigation. It is difficult to determine which is the cause of the accident and which is the secondary damage caused by it. ?Approximately two dozen investigators are checking their production and manufacturing conditions, as well as the working data in the last test. Considering that it is already late at night, I am afraid there will be more people working here during the day. In comparison, the three of them do seem a bit weak. ?For a moment, even Ren Bingda had some doubts about the scope of investigation drawn by Chang Haonan. Its not that I doubt the other partys judgment, but that I doubt whether enough evidence can be found to convince the British. For example, a broken oil line. ?More than half of the fuel and oil pipelines on the entire machine are broken. Why do you say that a certain section is the source of the accident? As for the other two people, their reactions were almost the same. Mr. Ren. ?One of them lowered his voice and whispered: Just the three of us... are we going to find a substandard part from this pile? Fortunately, Ren Bingda has cooperated with Chang Haonan after all, and knows that in this situation, it is most taboo to act on his own: Follow Mr. Changs instructions before leaving the country. If you cant find any problems... well talk about it later. The conversation between them was entirely in Chinese. In this era, it was still encrypted, at least Wilson couldn''t understand it at all. ??But it is not difficult to guess the content of the conversation from the tone. The latter turned around with a little sarcasm on his face: How about it, where do you want to start participating in the investigation? In fact, if Wilson puts the Chinese trio aside and lets them watch, Ren Bingda will really feel a little numb. After all, even with a clear direction of investigation, it is difficult to find the problem just by observing from a distance. But he may have felt that the three of them would have no idea what to do when faced with this situation, so he asked more questions. But this sentence undoubtedly gives an opportunity. Ren Bingda decisively ignored his tone and responded immediately: We are responsible for the production of the high-pressure and low-pressure turbine parts, so lets start with these two parts and the corresponding external casing accessories! ?Such a decisive answer confused Wilson. ?His original expectation was to give him a blow first, wait until he was confused, and then send the other person to do something casually. ?However, now that others have clearly expressed their wishes, and coupled with what Bodi said just now, it is a bit difficult to step down. ?However, until this moment, Wilson still didn''t feel that the three people made any waves based on their naked eyes. Finally decided to agree: Okay, but dont forget the requirements just now. If you need to compare the parts with the design plan, you can ask me or other staff to do it for you... "good." ? Ren Bingda, who was suffocating in his heart, nodded, and then called the two people behind him to step forward together... (End of this chapter) Chapter 1065 Mr. Chang has figured everything out. Chapter 1065 Mr. Chang has figured out everything ?After receiving the turbine blades delivered by China, Wilson began to organize manpower to prepare for accident simulation restoration. ?Of course, it is impossible to go to the test bed and blow up another Trent 900. Even though Rolls-Royce has a big business, it is impossible for Rolls-Royce to survive this kind of play. Instead, it is carried out in specialized laboratories. The scope of the simulation is also limited to the timing, trajectory and destructive force of the blades being thrown out after the turbine over-rotates. ? It is certainly impossible to directly find out the cause of the accident by this method, but it can at least prove whether the core machine of the Trent 900 itself has a fatal flaw. In fact, this is exactly the core purpose of Wilson, or in other words, project director Panos Watson For Rolls-Royce, the top priority is to buy enough time for the Trent 900 and calm public opinion. ?As long as it proves that the core aircraft is fine, Watson dares to let Bodi and Airbus restart negotiations. At that time, all rumors will naturally subside. As for the accident itself There are still more than two years between now and the planned first flight of the A380. ? Even before air testing using the A340 platform, there is still a year. ?As long as the problem does not involve the core machine, other problems can be corrected no matter what...right? In short, even if it is not corrected, the problem can be delayed for one to two years. Its all worth it. It is precisely because of this that from the day of the next day, Ren Bingda keenly discovered that the number of people working with them in the assembly workshop had actually decreased compared with that in the early morning. More importantly, Wilson himself, who had previously vowed to "come to me if you have anything to do", was nowhere to be found. ?Although this is objectively more conducive to the next operation of the three people, he still cannot accept the feeling of being kept in the dark despite his multi-tasking skills. ?The fundamental purpose of the group sending them here was not to solve the problem with Luo Luo''s voluntary labor. But take this opportunity to improve Chinas status in the international aviation industry. Fortunately, for Ren Bingdas generation of Chinese technicians, being left aside by foreigners is a perfectly normal experience. ?So he skillfully took advantage of the opportunity of asking someone to help compare the production documents, and made some insinuations to several British engineers around him. At this time, I was shocked to learn that the accident simulation restoration had begun. One of the young people who came with him immediately became furious when he heard about this incident and said that he must seek an explanation from Wilson. However, he was stopped by Ren Bingda. Mr. Ren His eyes were full of confusion. The King of Hell is easy to meet, but the devil is difficult to deal with. This Wilson is intentional. He makes us frequently stop what we are doing to look for him, and we are unable to devote ourselves to our work. ??Ren Bingda explained as he turned around and returned to the pile of broken parts. Then we cant just wait and see, right? ?The other party followed behind and asked: And I think this accident simulation will be very helpful for us to understand Rolls-Royces engine design and testing process. At this time, another person who was calmer had already realized the new problem: "But Mr. Ren, there are only three of us... Considering taking turns to take breaks, there are only two working at the same time most of the time. If one more person is assigned to participate in the accident simulation, wouldn''t it mean that only one person is left here to complete the daily tasks? The mission assigned by the general manager? For a time, the situation seemed to be at an impasse. ?Faced with this situation, Ren Bingda showed a confident smile: Of course its impossible to just wait... "We have a general understanding of the situation here. Bodi will be here in a while. We have another meeting with Panos Watson, the general manager of the Trent 900 project, before noon. Then we will meet directly with Panos Watson. Just let him talk and explain these things clearly..." It was only then that the other two people reacted. ?Wilson is not the easy-going King of Hell as Ren Bingda said. But a difficult little devil. Ren Bingda took out a notebook from his pocket and slowly began to record the damage of the parts corresponding to each number. He continued writing while writing: As for the manpower issue... we dont need to participate in their entire reduction test. As long as we can participate in the technical meeting after the test, it can take up to about two hours a day. If you free up a little time, you can participate. Of course, when we meet with Watson later, we still have to ask for full participation, so that it will be easier to negotiate later... Sure enough, everything was just as he expected. As project directors, Watson and Purdy were unable to renege on their promises regardless of their image like Wilson. After all, the previously reached agreement clearly stated that the Chinese delegation was allowed to participate in the investigation throughout the entire process. ??If the latter is excluded from a key link such as accident simulation and restoration, then in the end even the investigation report will not be signed. ?However, Wilson, who was temporarily called to the conference room, was obviously well prepared and also brought out the contents of the agreement. Indicates that the accident restoration workflow involves the core parameters of the Trent 900 and the technical secrets of their test team, which is a part of the agreement that can be exempted. After a stalemate, both sides had no choice but to take a step back. Huaxia no longer insists on participating in the entire accident restoration process, but the final results report of the restoration and regularly held technical meetings must be conducted with the presence of at least one person from China Xia. ?In addition, Ren Bingda and the others also obtained permission to directly access the external accessories of the turbine and its production materials. Anyway, for Rolls-Royce, since the core turbine part is produced in China, there seems to be no need to cover up the things outside the casing. However, for the targeted Chinese investigation team, this seemingly subtle change can have a qualitative impact on work efficiency. In the half day before this, every time they found a suspicious part, they had to find the British engineer nearby to compare it with the production documents. But others also have their own tasks and are not specifically responsible for this. I can only help in my free time. Now that you can check it by yourself, it is equivalent to directly skipping the most time-consuming process in the middle. Therefore, after taking turns to rest that afternoon, the progress of the remaining two people was an order of magnitude higher than before. So much so that even Ren Bingda himself didnt expect it. ?They found what they were looking for before Wilson completed the first stage of accident restoration... On the morning of the third day, Ren Bingda, who was inspecting the turbine attachment group as usual, suddenly heard an excited but obviously deliberately suppressed voice: Mr. Ren, I seem to have found it! "Um?" Ren Bingda stopped what he was doing and raised his head. ?However, he was not as excited as the other party First, this work is really boring and monotonous. After working for three consecutive days except for eating and sleeping, even Ren Bingda felt a little numb. Secondly, he himself had discovered highly suspicious parts several times before. After comparing them excitedly, he found that either they were originally designed in this way, or they were obviously damaged by secondary damage. They have nothing to do with the cause of the accident. Hence, at the beginning, he actually didnt have much expectations. Just as a routine, I came to the subordinate with my notebook and prepared to find the corresponding technical information according to the number for comparison. This time, however, he didn''t even wait to write down the part number. Just look in the direction the other person is pointing. He suddenly opened his eyes. ?That is a short length of pipe. Should be used to transport lubricating oil or fuel. Due to the combustion and subsequent explosion, it has been somewhat deformed in the middle. ?At a quick glance, it seems to be no different from hundreds or thousands of other similar wrecks. However, if you look closely at the cross-section of this pipe, you will find it. ?The thickness of its tube wall is inconsistent. In other words, it is an eccentric tube. Basically, such a design will only be made in some extremely special circumstances, or in situations where self-respect is required. Turbine accessories for aircraft engines are obviously not included in this list. In other words, this is almost impossible to be a design requirement. There is a high probability that there is a problem during production! In an instant, Ren Bingda felt ten years younger. My legs no longer hurt, and my waist is no longer sore. ?Standed up with a groan, resisting the dizziness caused by insufficient blood supply to the brain, and found the list of external accessories of the receiver and the production technical documents from the side. After comparing them one by one, we quickly found the location of this short pipe High and medium pressure turbine bearing casings, oil delivery pipelines. Unsurprisingly, in the design document, here is a uniform short pipe with a wall thickness of 0.91mm. At the moment, although the two of them do not have precise measuring tools at hand, they can still see with the naked eye that the thinnest part is not even half a millimeter. What a coward Looking at the production technical documents in front of him, the young man next to him felt emotional and even spoke in dialect: Mr. Ren... to be honest, I still cant believe it... ? Such quality problems that are so outrageous that they can be seen with the naked eye are simply unimaginable for someone like him who only started working in the mid-1990s. However, it passed two inspections by the first-tier supplier and Rolls-Royce itself, and was installed on the Trent 900 for testing. Ren Bingda next to him looked calm on the surface, but his slightly trembling hands clearly revealed his inner shock: Its really an oil pipe Before this trip, Chang Haonan specifically asked to focus on turbine accessories, especially the fuel oil supply system. ?Although he did as he was told, he was still a little bit murmuring in his heart. After all, there are thousands of possibilities for externally causing shaft breakage, and it is difficult to smoothly deduce the real cause. But now that the ironclad reality is before him, he cannot help but not believe it. At this time, Ren Bingda suddenly remembered that he seemed to have talked about the turbine attachment with Chang Haonan half a year ago. Check again which supplier produces this part of the turbine accessories. There was a clicking sound of the mouse wheel next to him. Its...Kawasaki Heavy Industries. (End of this chapter) Chapter 1066 The role of China must be reflected! Chapter 1066 must reflect the role of China! Hearing this answer, Ren Bingda instantly understood. At least I think Ive realized it Six months ago, when he just took over the turbine blade manufacturing task from Rolls-Royce, he once told Chang Haonan at a meeting that the people responsible for producing the Trent 900 engine turbine shaft and turbine accessories were Ishikawashima Harima. Heavy Industries, and Kawasaki Heavy Industries. ?Ren Bingda clearly remembered that Chang Haonans expression after hearing this was very intriguing. ??But he didnt think much about it at the time. He just thought that the other party was considering how to replace the share of Japanese companies in this link in the future. But looking back now, I am afraid that I had anticipated that something would go wrong at the time! Following this line of thought, everything is already connected. After all, Chang Haonan was the first to discover the word-of-mouth crisis among Japanese companies that year, and it was caused by an accident during the testing of NH90. And the plot of Trent 900 before us... Isnt it exactly the same? Considering that Chang Haonan had the foresight to emphasize to Rolls-Royce in writing last year the risk of over-rotation after a broken axle, the circumstances of this accident were completely consistent with it... Reasonable. Its too reasonable. "Then if Mr. Chang faces this situation, the next operation should be..." ?Ren Bingda began to try to put himself in another person''s shoes, trying to simulate what he should do next in Chang Haonan''s "plan". It wasnt until the subordinate next to him shouted twice that he woke up from his brainstorm. Mr. Ren, this is absolutely irrefutable evidence. As long as we take it out, we can almost directly determine the cause of the accident. Can we... Obviously, after feeling frustrated for several days, the former could not wait to feel proud. ?But Ren Bingda, who almost jumped up just now, calmed down now. Theres no rush. He raised his hand to stop the other party: As the saying goes, if you see one cockroach in your house, there are probably a thousand more hiding in the shadows that you havent noticed. Its just such a short piece of pipe now. Although it can indeed explain a lot of problems, it cannot fully reflect the role we play, and it is unlikely that such an outrageous quality problem will only appear in this small section of a few centimeters. "You and Xiao Jin will be more busy in the next two days. Find out other parts of this short pipe and the lubricating oil part of the entire medium and high pressure turbine shaft and analyze them one by one to see how many obvious substandard problems there are. " "yes!" ?The other party nodded immediately, but then turned curious: Then you, Mr. Ren Im going to put out a report before the first technical meeting the day after tomorrow, and completely block the mouths of the British... ??Ren Bingda stood up again, adjusted his work clothes and said... Time came very quickly two days later. According to the schedule, the first technical meeting after the start of simulation restoration will be held in the afternoon. Nearly everyone came to the conference room early, waiting for Wilson to appear It has been more than half a month since the accident occurred. Public opinion''s reaction was secondary, but Airbus, which had been being dragged along, was already a little unable to sit still. ? Even the French cannot accept negotiations initiated by the other party, but with no progress in two weeks. ?Furthermore, rival Engine Alliance has also smelled something amiss and is stepping up public relations against Airbus. It is hard to say what will happen if the delay continues. It can be said that the outcome of this accident restoration will be directly related to the future and destiny of the entire Trent 900 model. The atmosphere in the conference room was so depressing that it made people feel breathless. ?Panos Watson raised his hand and looked at his watch. There are still twenty minutes left before the meeting officially starts. Have you been contacted by Wilson? ?He suppressed his irritability and tilted his head to ask Tim Purdy next to him. I contacted you and the testing center reported... Halfway through the latters answer, he heard the sound of the conference room door being pushed open. Everyone turned their heads in unison. ?Wilson was standing at the door. He didnt even have time to put his laptop into his bag, but held it in his hand with the lid open. From the tired expression on his face, it was impossible to tell whether the outcome was good or bad. Since Joe has arrived, lets start early... ??Pody was also very anxious at this time. He quickly motioned for Wilson to sit on the left side of Watson, and then subconsciously looked around, preparing to announce the official start of the meeting. But before the last word was uttered, he realized that someone seemed to be missing in the venue. The sudden stop of the sound naturally attracted the attention of others.?????"Pordie?" Watson looked at him doubtfully. Supervisor, the Chinese representatives havent arrived yet. According to our previous regulations, the meeting cannot officially start yet. Where are they? When I contacted you before, I said I had already set off from the workshop, but now... I should still be on the way. As a very large enterprise with a century-old history, Rolls-Royce''s headquarters is close to a small and medium-sized town, and it often takes a long time to get from one area to another. ? Watson had no choice but to take a deep breath and continue to wait patiently. Anyway, those three people have no practical use, why dont we start first? Someone soon suggested. ?But Watson still maintained his sanity after all. It is obviously not worth spending these 20 minutes to lay a foundation for the subsequent accident investigation. Finally, five minutes before the meeting started, Ren Bingda strode into the conference room and found a place to sit slightly behind the conference table. At almost the same time, Bodi finally announced the start of the meeting. We have now completed the first phase of the accident simulation. ?Wilson didnt even glance at Ren Bingdas direction before opening the PPT and going straight to the point to introduce the current work progress: Thanks to the cooperation of Dr. Leah Lapworth, we used part of the last data returned by the test sensor to restore the working conditions inside the entire turbine from the temperature abnormality to the blade being thrown out. "It is completely certain that the root cause of the accident has nothing to do with the turbine. The medium-pressure and low-pressure turbine shafts were broken by external force about 2.5 seconds after the temperature abnormality occurred, which in turn led to the loss of fan load and the rotation speed in the next 1 second. Rising to twice the maximum allowable limit, the poor-strength titanium alloy low-pressure turbine disc was the first to be unable to withstand the centrifugal force and exploded. The broken piece then penetrated the casing and was thrown out of the engine, causing more serious secondary damage..." I have to say that the British are really good at making PPT. ??With Wilson''s introduction, the 3D scene reproduction projected on the screen keeps changing. Even a non-professional melon-eater sitting here will most likely be able to understand everything. So... the blade part wasnt even the first thing to break? ??Pody was a little surprised by this result. After all, according to intuition, when the speed gradually increases, it seems that the thin and fragile blade root part should be the first to cause problems. At least...thats the case for restoration. ?Wilson replied while controlling the computer to enlarge one of the pictures: Unlike high-pressure and medium-pressure turbines, the most vulnerable part of the low-pressure turbine structure is the turbine disk. Even the first thing to cause damage to the casing is a broken block formed after the turbine disk is broken. ?At this point, someone finally noticed Ren Bingda, who had been sitting in an inconspicuous place and had never spoken. After all, these two parts are produced in China. But the latter was lowering his head and writing down something in his notebook, and seemed to have no intention of interrupting. ?And Wilson quickly moved on to the next part. Our next plan is. ?As he spoke, he turned and looked at the colleagues in front of him: At least three more sets of experiments will be conducted to determine where this so-called external force impact comes from, whether it is outside the casing, or from the high-pressure compressor and combustion chamber. The atmosphere that had just relaxed a little became tense again in an instant ?Just because there is no problem with the turbine, it does not mean that there is no problem with the core machine. ?Then there are two other parts after all. ?The problem Bodi has in mind is more long-term: Three sets of experiments...are the materials enough? Thats the problem. ?Wilson replied: Currently, there is only enough to make one set, and the remaining parts need to wait for a new batch of turbine parts to be delivered. ??Bodi''s hand holding the pen shook violently. The entire conference room became quiet again. Even if the delivery cycle is not considered, the three sets of experiments will have to wait at least another half month to be completed. There is no time in any case. So, the order is crucial. At this time, Ren Bingda finally spoke: The next batch of blades has been declared for customs and will be delivered in about a week. It will not affect the progress of the investigation. A sudden sentence suddenly attracted all the attention. Including Wilson. In addition, it may not actually be necessary to conduct three more experiments. As he spoke, Ren Bingda took out a document that was about fifty or sixty pages thick from the briefcase he carried with him: Our investigation team has found some very interesting evidence through comparisons in the past few days, so... it is recommended to start from outside the casing, strictly speaking, from outside the casing of the high and low pressure turbine shaft parts..." (End of this chapter) Chapter 1067 Deep cooperation Chapter 1067 Deep Cooperation ??Ren Bingda''s words did not trigger the shock he imagined. The conference room was filled with more... At a loss. On the one hand, according to other peoples expectations, the so-called investigation team sent by China should be just a soy sauce. Even if it does work, it should be related to turbine blades. And the sudden sentence just now was completely unexpected. ?On the other hand, I really dont understand it. ??People of Ren Bingdas generation cant help but speak Chinese with a dialect accent, let alone speak a foreign language. As a result, the conference room, which had been a little agitated by Wilson''s presentation just now, actually showed some signs of silence. Fortunately, Tim Purdy responded quickly: Uh...Sorry, but could you please say it again? Upon seeing this, Ren Bingda stopped worrying. Instead, he picked up the information in his hand and knocked it lightly on the table: We have found some interesting results, please get me a projector. At the beginning of the 21st century, conference rooms have not yet been completely occupied by multimedia equipment, especially some old-school technicians who still prefer traditional methods. ?Hence, his little request was quickly fulfilled. Did not wait for an invitation from anyone, nor asked anyone. Ren Bingda briefly recalled Chang Haonan''s appearance when he held a meeting with them before, and then walked to the back of the small podium amidst dozens of looks that were either doubtful, doubtful, or expectant. Then, place a page of the information on the projector''s shelf. ?Looking at his confident look, even Wilson, who had been a little dismissive just now, subconsciously corrected his expression at this time. Quick, close the curtains! ??Podi turned around and whispered to the few people behind him who were closest to the window. As a few clattering sounds were heard, the things on the curtain gradually became clear. ?? is a hand-drawn schematic diagram of a short hollow tube, as well as a series of detailed design and manufacturing parameters. There is also a photo attached at the bottom. Its a pity that its a bit vague. Wait a minute, didnt I say that before ?Wilson''s expression changed slightly. But this time, he was stopped by Watson sitting in front with a wave of his hand. Mr. Ren, please continue. Obviously, the so-called "cannot take pictures" should be just a restriction casually stated by the former himself. ?? is not an official requirement from Rolls-Royce. ?However, Ren Bingda still explained it very "intimately": "Mr. Wilson, I think it is necessary to explain that this photo was not taken by us, but was extracted from a panoramic photo taken by you and enlarged." At this moment, Wilson was speechless. Accident investigations usually involve tens of thousands of various evidence collection and archival materials. Recently, all his energy has been focused on simulation restoration. It is normal for him not to be impressed by part of one of the photos. ??But its still a bit embarrassing to be pointed out in public. Fortunately, Ren Bingda was too lazy to argue with him at this time, so he turned around and continued his performance: "During our investigation, we found a short lubricating oil pipe numbered 33-1472, installed on the medium and high-pressure turbine bearing casing. According to the design, the wall thickness of the pipe is 0.91mm. However, after actual measurement, we found that it was not processed during processing. When the inner hole is concentric with the outer wall, the thickest part of the final products tube wall is 1.42mm, while the thinnest part is only... 0.35mm. ?Even, in order to prevent the people below from being unable to hear clearly, when I said this, I even slowed down my speaking speed. finally. Unsurprisingly. When the number 0.35 is spoken. ?The scene was in an uproar. How is this possible? Some people immediately raised doubts. With this reaction speed, Ren Bingda had reason to suspect that the other party didn''t even have time to think, and was just too shocked to trigger a subconscious reaction. ?However, this question was exactly what he wanted, so he answered patiently: Indeed, when we first discovered this situation, we couldnt believe it either. After all, Rolls-Royce is a company that has strict requirements on products, so it would be a bit unbelievable that such a problem would occur. "Actually, we had discovered the anomaly in this short pipe two days ago, but in order to avoid misjudgment we did not announce it in advance. We spent another two days compiling a detailed report before finally determining that it was a manufacturing problem. Correct ?Ren Bingda paused for emphasis before talking about "strict requirements" and "unbelievable" - Although the entire sentence seems to express praise. But combined with the actual situation at hand, the actual meaning is obviously exactly the opposite. For a time, Watson and Bodie''s faces were like changing faces in a Sichuan opera, turning red and white. As for Wilson When Ren Bingda first came to power, he still had a bit of anger on his face. Obviously, he has made a plan. No matter what the former says, he will have to fight with him. After all, accident investigation is a very rigorous matter, and it is not something you can just make casual assumptions about. ?However, the dissatisfaction soon turned into an accident. Then came the shock. In the end, it turned into a helpless smile. ?This question is too intuitive and there is really no way to solve it... As for others, some are still immersed in disbelief, while others have already begun to consider the issue of responsibility (blame). ?However, as an outsider, Ren Bingda naturally does not need to care about this. He still didn''t stop. Instead, he replaced it with another piece of paper, then raised his hand and pressed it down in mid-air to indicate that he was not finished yet. Then, he continued to add: "According to the relevant parameters previously provided by your company to us, the operating temperature outside the high-pressure turbine bearing casing is about 370-400C, which is much higher than the ignition point of the lubricating oil. Therefore, after the short tube ruptures, the lubricating oil exposed to the high-temperature air will The oil quickly began to burn, and the fire spread to the entire outside of the bearing casing in a very short time..." "Although the fire point starts from the corresponding position of the high-pressure turbine, the temperature of the oil combustion is not high enough to threaten the interior of the high-pressure turbine with the highest heat resistance, including the medium-pressure turbine. Due to the use of nickel-based alloys, it can also continue to work for a period of time. , In the end, the low-pressure turbine shaft, which uses titanium alloy and has an operating temperature below 500C, lost strength and broke first. The low-pressure turbine was decoupled from the fan and lost its load. " Ren Bingda suddenly paused here, and his eyes slowly swept across the entire conference room in front of him: I think you all already know whats going to happen next After he finished speaking, he also imitated the British manner and bowed slightly in a very graceful manner. The more modest he is, the more embarrassed Luo Luo will be. This is the entire process of the accident that we investigated and subsequently deduced. Of course, its just a rough estimate. I hope it can bring you some help ??Ren Bingda thought that the performance, which lasted less than ten minutes, was quite exciting. At least he already has six points of Mr. Changs skills. ?However, the expressions of the people below are even more exciting Nearly 300 people worked hard for more than half a month. The result is not as good as three peoples five days. ?Of course, having said that, the accident investigation was also a matter of luck. Perhaps someone just saw a problematic one among tens of thousands of fragments. But the problem found in the end was so low-level that there was no way to clean it up. The short tube is processed eccentrically, and the deviation is large enough to be visible to the naked eye. Surprised that no one noticed it, it was even installed on the engine. ?This cannot be called negligence, it is simply a crime! Especially Watson. At first he felt a little embarrassed, but after he calmed down a little, he was sweating profusely. Thanks to this being a test machine. ??If this kind of problem is found in test flight aircraft or even in mass-produced aircraft delivered to customers... It''s hard to say what will happen to the company, but as the project director, I''m afraid he won''t get any good results. ?Thinking of this, Watson couldn''t help but stretch a few veins on his forehead. ??If it werent for the fact that Ren Bingda was still on stage, he would have jumped up and started trolling people. ?After taking several deep breaths, he finally managed to suppress his anger: Body, remember to check the supplier of this hose and who is responsible for the quality inspection... Hearing this, Ren Bingda, who was already preparing to step down, suddenly stopped sorting out information: The supplier, we have also checked. Its Kawasaki Heavy Industries. ?For a moment, Bodie felt that he seemed a bit redundant. Why do you let others do everything? This is the complete report we compiled, Mr. Watson, please take a look. ?Ren Bingda stepped down from the small podium and kindly put a stack of documents in his hand in front of the other party. The content has been specially written in Chinese and English, which is obviously well prepared. ? Watson sighed, and without even turning over the report in front of him, he said directly to Ren Bingda: He knew that since the other party came with a printed paper version, it meant that he must have kept a backup. From the time China asked to participate in the accident investigation to today, this set of smooth operations is obviously not just to show off to Luoluo. The matter has come to this, so why not everyone be more open-minded. Mr. Ren, regarding the contents of this report And Ren Bingda obviously also has the idea of ????showing off: The contents of the report can be added directly to your accident investigation results, but... there are two requirements. The first is to deepen the cooperative relationship in the Trent 900 project. At least the external accessories of the receiver should be produced by us. Second, it must be intuitive to reflect our role in the investigation of this accident, as well as the development and production of the Trent 900! (End of this chapter) Chapter 1068 The model is confidential, but the param Chapter 1068 The model is confidential, but the parameters are not. In the conference room, in public, it is naturally not a good place for exchange of interests. ??Moreover, there are many things to come. For example, although everyone now basically agrees with the results of Ren Bingdas investigation, officially, as long as the final report is not released, it can only be speculation no matter how reasonable it is. So this matter must be brought to an end as soon as possible. ??And Airbus have almost reached the end of their patience. Now that it is confirmed that the problem is not with the core aircraft, they have been delaying the unsigned contract and naturally have to sign it quickly. As the saying goes, it is not a blessing to make a fortune but lose a horse. Although the production quality problem is embarrassing, it is not difficult for industry leaders like Rolls-Royce to solve it. Therefore, both Ren Bingda and Panos Watson just laid out the initial conditions and showed that they have a negotiating attitude. Then, the latter politely invited the former out of the meeting room. Of course there is no malicious intent. But what happened next is not suitable for showing to outsiders. Sure enough. ??Before Ren Bingda had time to go downstairs, he vaguely heard an angry roar coming from behind him... The matter of dividing the pot is completely an internal issue of Luo Luo, and outsiders cannot interfere. Therefore, after submitting the situation and the investigation report they wrote to the country, the three members of the Huaxia Investigation Team entered a short leisure time. ?Perhaps due to the shocking performance in the conference room, after that day, although the hard restrictions previously listed in the agreement were still there, almost everyone, including Wilson, became much better towards them. Some of the previously unreasonable requirements, such as not being able to take photos in non-confidential locations, are no longer mentioned. Even taking the initiative to find three people to communicate with. It actually made Ren Bingda learn a lot from the intentional and unintentional thing. Manufacturing, thats it. ? Many details are not considered core secrets. For experienced people, they are like eating and drinking. But if inexperienced people encounter it, they may be stuck unable to solve it for months or even years. ? Such days continued for nearly a week, and then Ren Bingda finally saw Watson again. Only this time, it was in the other party''s office. ?Compared to the previous one, the fatigue on the latter''s face could not be concealed at all, and he was holding a cup of black coffee in his hand that was extremely bitter just from the smell. ?Based on Ren Bingdas experience of staying up late, he probably hasnt had much rest for many days. But the spirit is much more relaxed than the last time we met. On the sofa on one side of the office, Tim Purdy, the deputy director, and a scholar-looking person he didn''t recognize were sitting. It seems that the main leaders of the Trent 900 team are safe. ??Ren Bingda actually wanted to know who they found to take the blame in the end. But he also knew that now was not the time to discuss this kind of issue, so he had to suppress his curiosity and shook hands with the other three people present. ?The man he did not recognize introduced himself as Roger Elinor, a professor at Cranfield University. Then, no further explanation was given. ??While Ren Bingda was analyzing the identity of the other party, Watson behind the desk also got to the point. "Mr. Ren, we have basically determined the investigation results of this accident. Kawasaki provided high-standard samples during the bidding process, but privately lowered production standards when it came to supply, and colluded with third-party testing departments to forge fake products. The quality inspection report resulted in the short pipe with inconsistent wall thickness being installed on the No. 4 prototype of the Trent 900. " Bodi next to him also followed up and said: Due to the complex shape of the oil pipe, it is difficult to detect the wall thickness of the middle part in a non-destructive manner, but after this accident, we will increase the proportion of product sampling... ?Ren Bingda understood it instantly. As the number one and number two figures in the Trent 900 project team, naturally according to regulations, they do not need to report the investigation results to an outsider like themselves. ? Even if the previous agreement has included a stipulation that his signature is required for the investigation results, you only need to send him a final copy and that''s it. The reason why such a scene is happening now is entirely because these two people are ready to throw all the blame to the supplier and take out the entire project team. In this way, he, an outsider, can demonstrate the value of united front. ?Of course, Ren Bingda has no reason to object to something that can bring misfortune to Kawasaki. So he directly repeated the request he had made at the meeting before. The meaning is also very clear. As long as you give me enough benefits, I can pretend I dont know anything. ? Bodis expression showed a bit of hesitation: "Mr. Ren, regarding your requirements... The first point is that as long as the product can pass the quality appraisal like the turbine blades, there will be no problem. We need to find new suppliers anyway, but the second point... comprehensive consideration After analyzing and summarizing the current actual situation of 900 and the recognition of the international aviation market, it may be considered that the supplier list of the current model that has been published will be difficult to withstand large-scale adjustments..." A long standard British sentence made Ren Bingda feel a little dizzy. But he probably understood the meaning. ? It is that China''s reputation in the aviation industry is not high enough, and the Trent 900 is at a critical stage of contract confirmation. The accident that just occurred has not yet subsided, and the engine alliance is eyeing it. So the second point is not feasible at least for now. Of course, this is to be expected. ??He brought up the second point, originally just to make a gesture of lifting the roof, waiting for the other party to take the initiative to ask to open the window. Mr. Purdy. Ren Bingda smiled and responded: "If it was half a year ago, the reasons you mentioned might be valid, but now, I think we have proven our ability and responsibility, right?" ??Podi nodded quickly: "Of course, we have recognized this, otherwise we would not commit to giving more production shares... But you know, market-level feedback is always lagging behind. Maybe it will take a few years until the Trent 900 runs smoothly commercially. After that, it will be more secure and beneficial to both of us to gradually disclose the role you play." In fact, this was exactly what Chang Haonan had in mind at the beginning. But it is obviously impossible for Ren Bingda to give in in vain: "If this is the case, the public opinion risks borne by you and me may not be equal..." ?At this time, Watson, who had not spoken much just now, stood up and started to sing: Perhaps some compensation can be made in other ways, such as more extensive cooperation on other projects? For example? In fact, by this time, both sides are already playing their cards right. Watson knows very well what China is interested in In addition to money, what is more important is the opportunity to deeply participate in the international market. Just like what they have done in the past in the fields of numerical computing and aircraft design. At first it seems unremarkable. But when the outside world realizes it, they will find that the entire industry is already full of Chinese peoples footprints. ?But in this current situation, he can''t care too much. No matter what the future of the industry is like, Ill get over it first and then talk about it. ?Ren Bingda also grasped this point precisely It is true that China will seize market share, but those who cooperate with us first will not suffer any loss. As a result, the two sides entered the showdown stage smoothly. Professor Elinor, its up to you to speak. ? Watson breathed a sigh of relief and motioned to Elinor who was not far away. The latter calmly pushed up his glasses: We have noticed that the Dassault Falcon 8Z business jet, which just made its first flight not long ago, uses the SeA650 engine based on the M88 core machine, and this engine is equipped with non-contact magnetic bearings provided by you. In fact, SeA650 does not belong to the business of Haofa Group. But it is obviously impossible to show timidity at this time. Thats right. ?He only hesitated for a moment, then nodded decisively: "But as far as I know, it should be part of a complete permanent magnet power generation system." Thats right, thats it. Professor Elinors eyes brightened significantly: We hope to be able to use this system on another model. Ren Bingda''s eyes showed some confusion. But this system is not standardized and needs to be specially designed and customized according to the specific situation...You need to at least tell me the model details? "Well" ?The other party raised his hand to smooth his hair to cover up the slight embarrassment on his face: Sorry, as required, the specific model is confidential and cannot be disclosed to you. ?However, before he could express "Are you kidding me?", Elinor quickly added: But we carefully studied the relevant terms and found that the relevant parameters can be provided to you as long as they are not tied to the model..." (End of this chapter) Chapter 1069 Military product line? Chapter 1069 Military product line? The model cannot be said, but the parameters can be provided. This outrageous situation immediately put Ren Bingda out of control. In fact, as an engineer of Haofa Group, he does not know much about the situation of SeA650, and it is impossible for him to make decisions for others on this key decision. ??But considering that he was still in someone else''s office at the moment, Luo Luo, he couldn''t be too puzzling, so he had to put on a posture of "everything is under control": "Technically speaking, as long as the relevant parameters can be provided, we can provide customized permanent magnet power generation systems, and because the reliability of the entire technology has been proven on the SeA650,...if you are willing, you can even consider not Mechanical backup was installed to further reduce weight and parts count. Hearing this answer, the three Luo Luo people across from them looked happy almost at the same time. ? Among them, Panos Watson directly took a document that had been prepared on the table: Then this accident investigation report But the casting movement was quickly interrupted by Ren Bingda: "But without specific model information, it is difficult for us to estimate the future potential of this cooperation..." The meaning is very clear, that is, we are worried that you British people will dig out a gadget from the pile of old papers that not many people will use, and just build a few or a dozen units to get rid of us. For a century-old factory like Rolls-Royce, this kind of worry is very necessary. After all, you have no idea how many ancient or medieval aircraft around the world still need after-sales service from them. Watson was stunned for a moment when he heard this, and then looked at Roger Elinor who was not far away, and quickly guessed Ren Bingda''s worries: "In this regard, we can guarantee that the initial order quantity of this model will not be less than 500 units, and the lifetime production will not be less than 1,500 units. In addition, in addition to the hardware part of each unit, we will also provide you with premium products based on the production volume. The party pays for the program itself. This condition is quite good. Even so good that Ren Bingda couldnt believe it. After all, the core of permanent magnet power generation equipment, namely the non-contact magnetic bearings, is actually produced in the UK. ? Judging from the mysterious appearance of the other party, it is probably a more sensitive model than the Trent 900, and it is unlikely that the entire system will be manufactured in China and then exported. There must be a change of hands in the middle. Or simply produce it in the UK, with China only providing some parts. In short, there will inevitably be some discounts on profits at the hardware level. The main benefit is probably still in the cost of developing the plan. ?Now the other party has taken the initiative to propose not to engage in a one-time deal on the design, but to charge based on shipment volume. With the expected output of 500-1500 units, this is undoubtedly a favorable plan for China. Generally, this requires suppliers, especially solution suppliers, to negotiate. Of course, no matter how good the conditions were, Ren Bingda could not make a decision on the spot, so he had to say a set of nice words to express that the matter was not within his scope of authority and needed to be handed over to his superiors in the country for decision-making. This is not the first time Luo Luo has cooperated with China. Looking at the tone of Ren Bingda''s statement, he knew that this was not a delaying measure, so he did not insist more. He just repeatedly asked Ren Bingda to improve efficiency. The two sides are now in the same boat. , if the entire plan of Trent 900 is affected, it will be a lose-lose outcome. However, Ren Bingda is not just staying in Luoluo these days. ?This level of PUA has no effect on him: I heard... that negotiations between you and Airbus have been restarted, so this report shouldnt be so urgent? One sentence directly hits the point. Watson and Purdy looked embarrassed at the same time. After hesitating for a moment, the former had no choice but to forcefully make up for it: Although the immediate risk has been resolved, if the accident investigation remains pending for a long time, there will still be problems when entering the mass production stage. "Especially before the A380 is installed for its first flight, Airbus and we need to review relevant documents from each other... Although because of the tight schedule, most of the time they just look at the document list, but if they find that an accident investigation has continued A few months, or even more than half a year, will definitely require some in-depth investigation..." Hearing this, Ren Bingda couldn''t help laughing: According to the timetable, there are still nearly two years before the first flight of the A380. We in China are not British... nor are they French. We are just communicating with our superiors. It will not take so long. ??The unsigned investigation results are one of the biggest bargaining chips in his hand, so naturally he cannot let go of them so easily. After that, I even didnt forget to do a reverse PUA wave: In addition, if you want my superiors to make a decision in a shorter time, maybe you can consider providing some data in advance so that we can evaluate the cooperation... Originally, this sentence was just said casually. Even Ren Bingda himself did not expect to receive any positive response. Rollo is not a Muggle. Even though the previous cooperation with China seemed to have given the latter a lot of advantages, from an overall perspective, they themselves did not suffer. ??????????????????????????????????????????????????????????However, this time, he was really wrong. ?Eleanor said directly before Watson or Bodie could react: Actually, thats what we are planning to do. Then ?Ren Bingda subconsciously prepared to say some concluding remarks before leaving. When the words came to my lips, I realized that the other persons response was completely different from what I expected. "Um?" He forcefully pushed his half-raised **** back down. Eleanor continued as if nothing was wrong: As partners, I think both of us should have some basic trust, and I also hope that this cooperation can be settled as soon as possible. Of course, the relevant documents are still being sorted out, and it will take a few more days to be available ??Ren Bingda said in his heart that I believe you. When we were working for Trent 900, we were as guarded against thieves as we were guarding against thieves. Now that we suddenly behave so generously, there must be something fishy in it. Moreover, he suddenly realized another problem. This is Professor Elinor. Although he looks inconspicuous, he seems to be the number one person on the same level as Watson, or at least has no affiliation with each other. You must know that the latter is not only the Trent 900, but also the supervisor of the entire Trent series of engines. ?Then what exactly does Elinor mean by cooperation is very intriguing. ??Although Rolls-Royce''s product line is complex, most of them have some historical evolution, and are even old models obtained from Allison Company. It is impossible to carry out such a labor-intensive upgrade as permanent magnet power generation. As for the new products, except for the trump card of the Trent series, there is still a production potential of thousands of units... Then only the military product line is left. ?Thinking of this, he finally understood why the other party said before that the model could not be announced. ??I''m afraid this is not Rolls-Royce''s own business needs, but Party A''s requirements in the contract... ?After sending Ren Bingda away, Watson''s expression changed instantly. The atmosphere in the entire office also cooled down. ??Podi quickly raised his hand and quickly closed the door to the room. Professor Elinor, are you really sure...that you want to give out some data in advance? What does it matter? Elinor shrugged his shoulders, pretending to be completely indifferent: Anyway, the models we jointly developed with GE have become backups, and the value of those data to us is very limited. ?His answer made the other two people stunned: And GE ??Podi''s face showed confusion: Wait a minuteare we not talking about EJ200 Of course not. Elinor showed an expression that he couldnt bear to look at: Its difficult to finish the EJ200 properly now. How can I possibly use this radical new technology again? Watson finally turned a corner now: So...from the very beginning, the model you planned to cooperate with the Chinese people was the F136? ?Eleanor leaned on the back of the sofa, making a relaxed posture: Actually, its not me who is looking for him, but Director Tom Hartman. And strictly speaking, it is not the F136, but the vertical take-off and landing version of the lift fan of the JSF project. Their original plan was to completely use permanent magnet power generation equipment and magnetic bearings to replace the traditional fulcrum, but later found that this was too radical and could not guarantee the development cycle, so in the end it became only the fans using new technologies to reduce system complexity and weight" (End of this chapter) Chapter 1070 Industrial Construction and Development Chapter 1070 Industrial Construction and Development Committee Professor Elinor''s revelation really made Watson and Bodie digest it for a while. The F136 engine is a power specially developed for the JSF project in cooperation between General Electric and Rolls-Royce. ?Although it lags behind its competitor Pratt & Whitneys F135 in terms of progress and has lost the right of priority, the project itself has not been canceled directly, but is still progressing steadily. ?This is mainly due to the U.S. militarys dual-producer procurement strategy After experiencing the reliability disaster of the F100-PW-100 in the early years, the US military referred to the supplier AB''s ideas and provided two optional models for fighter jets, especially single-engine fighter jets, to avoid the situation of the entire military being overwhelmed again. . For example, in the batch number of F16, block40/50 uses General Electrics F110 series, while block42/52 uses Pratt & Whitneys F100 series. This point has also been continued in the JSF project. At least temporarily sustained. ? Among them, the F136-GE-600, which is planned to be used for the F35B, will be equipped with an additional lift fan in order to achieve the vertical take-off and landing function. It is worth mentioning that the lift fan of Pratt & Whitneys F135-PW-600 was also developed by Rolls-Royce. Always be on the winning side.jpg Thats why Elinor just emphasized that the cooperation with China is limited to this lift fan and does not include other parts of the engine. "But" ??Pody still finds it a bit hard to accept: In other words, you are planning to install core components provided by China on fighter jets produced in the United States? ??At that time, after Snecma broke up with General Electric, it was a joke in the industry when it went to China to cooperate in research and development with the mentality of giving it a try. GE, in particular, was once waiting to see the French laugh. Although the improvement of the M88 itself later proved to be quite successful, it still inevitably lost face. As a result, just over three years later, it was GEs turn to cooperate with China? ?Although its not proactive... But to a certain extent, it can be regarded as being pierced by a boomerang. Facing such accusations, Elinor shook his head very seriously: I have to correct your misconceptions. "First of all, the core of the permanent magnet power generation system is the magnetic bearing. I have previously investigated the equipment supplier of SeA650 and found that the bearing itself is produced by a British company, so Huaxia only provided the design plan and did not Provide core components. "Secondly, although some equipment in the system does need to be provided by China, for the non-core components of the JSF project, many Chinese companies were originally selected as second-tier suppliers due to cost considerations. This was done first by Lockheed Martin. , and everyone knows it well..." After explaining it, the other two people were dumbfounded. Finally I had to change the topic: What about EJ200? I mean the deformation problem... Professor Elinor''s smile froze on his face when he was suddenly mentioned about something sad. After a long time, he sighed and then shook his head: There is no good solution. I have tried my best structurally, and the situation has improved by about 70% compared to before. However, the lack of support in front of the fan still cannot be completely solved. Now we either admit that there are problems with the design of the EJ200 and then re-strengthen the fan case at the expense of reducing the thrust-to-weight ratio on paper, or we restrict large overload maneuvers at supersonic speeds at the flight control level Since 1998, he has been wiping the **** of EJ200 for five years. But it really cant be wiped clean. ?Its useless to add money this time. ?This time, the British surprisingly did not argue. A few days later, some basic parameters of the model were handed over to Ren Bingda. ?Of course, it is an aviation engine design after all, and the basic parameters cannot be explained clearly in a few words. Therefore, the latter quickly sent two of his subordinates back to the country to hand over the conditions offered by Luo Luo and all kinds of information obtained during the trip to the group level. I also brought back a report, which fully described some of my thoughts during my time at Rolls-Royce, as well as my guesses about the nature of this cooperation model, for reference. Ren Bingda estimated based on past experience that for a key cooperation project like this, Mr. Chang would usually give him new instructions within three days. However At almost the same time that the other two members of the investigation team returned to China. ?Chang Haonan suddenly received a call from Ding Gaoheng. Facing this sudden invitation, Chang Haonan could not help but feel a little nervous. You must know that in the past year or so, he and Ding Gaoheng have met either near home or during meetings. At this critical period when the Science and Technology Committee is about to be reorganized, the other party suddenly wants to have a special conversation with me, which makes people think a little more - ?Many of the projects he is currently working on are highly dependent on resource support from the Commission of Science, Technology and Industry for National Defense. ? Any major changes in organizational structure or functional scope may have unpredictable impacts. Of course, from a rational level, Chang Haonan also knows it very well. With the development and changes of the times, it is only a matter of time before the Commission of Science, Technology and Industry for National Defense withdraws from the stage of history. ?If you take action earlier, you may be able to take more initiative... Even though it had been a while since he had been here, Chang Haonan brushed his face and came to the office of the director of the Science and Technology Commission. Director Ding. He knocked on the half-open door. Just like so many times in the past. Ding Gaoheng was leaning on his office chair at this time, holding a document with only a few pages in his hand. The other hand is not holding a pen, so it is obviously not correcting. Just looking at it. Xiao Chang...come in! Hearing the voice coming from outside the door, he didnt even raise his head, but directly identified the persons identity from the voice: Sit wherever you want. I dont know if it was an illusion, but Chang Haonan rarely heard a hint of... from the other partys tone... Tired. It is not the kind of physical fatigue after working for days. But spiritually. Subsequently, there was another silence for several minutes in the office. ?Chang Haonan could see that Ding Gaoheng wanted to speak several times, but in the end he held back. At this time, it is definitely necessary for him to start. Director Ding, I dont know why you called me here this time Sure enough, after hearing Chang Haonans question, Ding Gaoheng finally sat up straight: You should be able to guess it...its about the reorganization of the Science and Technology Commission. As he spoke, he put the document in his hand on the table. The former had naturally expected it, but now that he heard Ding Gaoheng''s personal confirmation, his whole expression suddenly became serious, and he stood up at the same time: I resolutely obey the organizations arrangements! ?This slightly violent reaction made Ding Gaoheng very happy. He quickly raised his hand and pressed down, gesturing for the latter to sit down: "Don''t be so serious...it''s just that the nature of the unit has changed, it''s not that the department has been abolished." Hearing Ding Gaoheng''s words, Chang Haonan finally breathed a sigh of relief. At least, what he was most worried about did not happen The Science and Industry Committee of the previous generation was actually equivalent to being completely cancelled. Because the Ministry of Industry and Information Technology was built on the basis of the former Ministry of Information Industry, it only incorporated some of the functions of the Science and Technology Commission. Dont underestimate this difference. There will be a huge gap in resource allocation for specific projects. From your tone just now, I thought you were going to... ?He sneered twice and quickly sat back on the sofa. I just... Ding Gaoheng seemed to want to explain, but he had so many words to say that he didnt know where to start. After all, I have been the director of the Science and Technology Commission for 20 years. Even if I dont think about it from the perspective of power and position, I still have feelings for this system. ?Now that I suddenly have to take a back seat, I am inevitably a little bit reluctant to give up. However, due to the impact, it is impossible to say such words clearly even to Chang Haonan. In the end, it turned into a sigh: "well-" ?However, he quickly adjusted his mentality and said seriously: "The current plan determined by superiors is to reorganize the National Defense Science, Technology and Industry Commission into an Industrial Construction and Development Commission. Its functions are to propose new industrialization development strategies and policies, coordinate and solve major problems in the new industrialization process, formulate and organize the implementation of industrial development Plan and promote strategic adjustment, optimization and upgrading of industrial structure..." The Industrial and Construction Commission consists of the General Office, the Industrial Policy and Regulations Department, and the Finance Department ?As Ding Gaoheng showed the reorganization plan bit by bit, Chang Haonan''s mood also turned to surprise. The entire plan can be said to have exceeded his expectations. ??The military industry functions of the Commission of Science, Technology and Industry for National Defense were unified into the National Defense Industry Bureau as a secondary bureau. System Engineering Department I and System Engineering Department II were delisted, and their internal and external names were unified into the National Space Administration and the National Atomic Energy Agency. Correspondingly, the Equipment Industry Department, which he single-handedly established, was greatly expanded and divided into four parts: the Materials Industry Department, the Consumer Goods Industry Department, the Equipment Industry Department 1, and the Equipment Industry Department 2. Not only did it fully encompass all the functions of the former Ministry of Machinery Industry and the Ministry of Metallurgical Industry, which were abolished in 1998, it also listed major equipment manufacturing industries such as civil aircraft and civil ships separately, and established a national key project construction office. ??More importantly, although the direct jurisdiction of state-owned enterprises at all levels has been unified into a newly established department, military industrial enterprises, including aviation power groups, still accept the guidance of the Industrial Construction Commission in their business... In general, its Its a lot of money. At the expense of losing some peripheral powers, the function of planning and guiding overall industrial development was gained. Especially the Equipment Industry Department, in the past few years, it has almost always existed as a sideline. ?It is also often criticized at home and abroad for being not market enough. Now, there is not only the opportunity to become a regular employee. Also achieved tremendous development. It is equivalent to receiving direct affirmation from superiors. This is a great encouragement to the entire equipment industry system and even all related industries. After a short pause, Ding Gaoheng put down the document in his hand, raised his head and continued: "The first leader of the Industrial Construction Committee is currently planned to be Comrade Li Zhongyi. Originally, the superiors also considered promoting Comrade Lan Xinzhi to the new deputy director, but considering that he was too young, it was not approved in the end. It was tentatively decided to be Director of the Second Department of Equipment Industry and concurrently director of the National Key Project Construction Office..." These words are superficially talking about Lan Xinzhi. But actually it also has another meaning. Just to make Chang Haonan mentally prepared. He is too young, and there are still rigid rules in the public service system. There is no way to get further appointment. ?However, for Chang Haonan, as long as the entire industrial system still exists, he has already won a lot. As for the specific position It''s not that important. ?Sometimes, if you dont serve in the Industrial and Construction Committee, your status can be more detached. ?However, just when he thought that the following content should have nothing to do with him. Ding Gaoheng still came up with a surprise: "In addition, considering that the adjustment of department functions is too large this time, in order to ensure as smooth a transition of the military industry system as possible, I suggested to my superiors to establish a defense industry expert group. There will be no establishment, but it can directly report to the Industrial and Construction Committee, or even more Superior leaders provide advice and suggestions. Considering the decisive role you play in major projects and scientific research, Xiaochang, I would like to invite you as one of the advisory members of the expert group... At this moment, Chang Haonan''s mood was probably similar to Jim Hacker''s feeling at the end of "Yes, Minister" when he learned that he had become Prime Minister ?Although you want to agree immediately, you must be more reserved and not be too rude. ?One of his major concerns over the years is that as the leader of the Aerospace Power Group, it is not convenient for him to intervene in the specific business of his brother units. Otherwise, it will inevitably seem like pointing fingers. ?Some particularly important ones, such as Air Police 2000 and ocean surveillance satellites, can only be carried out in the name of cooperative research and development. ??But after all, it depends on whether the other party is willing to actively cooperate. And it is not within the scope of the function, so it is not easy to use it frequently. This so-called unestablished consultant status perfectly solves this problem. It is equivalent to giving Chang Haonan a strong claim on all military-related projects. Its almost like Im dozing off and Ill give you a pillow. Although it is said to be a suggestion. But that is a suggestion to the leadership. There is no need to say much about the gold content. Ding Gaoheng, obviously taking this into consideration, created such a unique position before retiring to the second line. For others, it may only be regarded as an honorary hat. But for Chang Haonan Its really useful. Xiao Chang, before we determine the final list, we need to ask for your personal opinion... He looked at Chang Haonan with a smile. The latter tried hard to control the twitching of the muscles on his face, trying not to smile too brightly. I think... it should be fine. (End of this chapter) Chapter 1071 Military and civilian dual-use turbofan Chapter 1071 Dual-use Turbofan 20 Thanks to the establishment of the Equipment Industry Department of the Commission of Science, Technology and Industry for National Defense a few years ago, which actually took over part of the functions of the former Ministry of Machinery Industry, as well as more importantly, personnel and files, this round of reorganization, although structurally speaking, can be called It has been completely transformed, but when it comes to business, there will be no particularly obvious gaps. ?Of course, after all, it is an organization ranked among the top six that is making adjustments. Even if it is just taking off the old brand and putting up a new one, it cannot be done in three days or two. ?Especially as Ding Gaoheng himself was promoted half a grade to take up a casual position in preparation for retirement, what followed was another major change of leaders in various departments. ?This is even more impactful than the institutional adjustment itself. Therefore, Chang Haonan did not leave the Science and Technology Commission immediately after bidding farewell to Ding Gaoheng. Instead, he stopped by to visit Li Zhongyi. Of course, there is also Lan Xinzhi. It should be said that it is not an accident that the former became Ding Gaoheng''s successor. Since the Industrial and Construction Commission regards civilian industry as its future functional focus, Li Zhongyi, who has worked in the non-military industry system for a long time in the past and was responsible for military-civilian integration business at the Science and Technology Commission, has great advantages. Of course, considering that the appointment of director has not yet been officially announced, Chang Haonan cannot be too naked and open champagne to others at half time. Just briefly discuss the direction of future efforts and indirectly express support for the other party''s work. ?However, things are different over Lan Xinzhi. He is retained during the organizational adjustment process. There are four equipment industry departments, but currently only the leadership team of the second department has been determined by superiors. Hence, its time to start discussing business issues. Director Lan, long time no see. At Lan Xinzhi, Chang Haonan''s behavior was much more natural. After all, the other party was able to complete the leap from secretary to department head thanks to the establishment of a department like the Equipment Industry Department. Mr. Chang...thats not right, we should call him Consultant Chang Lan Xinzhi was facing a headache due to the documents on the table. When he saw Chang Haonan walking in, he simply put his pen aside and sat on the sofa next to him. When the latter was at the door just now, he had already noticed the spectacular scene on the desk: I still have to congratulate Director Lan. It seems that the business in hand is much richer than before..." ?There is absolutely no yin and yang in this sentence. ?Although Lan Xinzhi seems to have not made any progress on the surface, some of his functions have even been divided. But the real situation is exactly the opposite. As a new department that started from picking up others and was established in the cracks, the original Equipment Industry Department was not very high in ranking within the Committee of Science and Industry, nor in the actual resources available at hand. If Chang Haonan hadn''t quickly set up the Torch-C.B. Ferrari Machine Tool Factory and built two representative victories in building a heavy-duty die forging press, and concentrated his efforts on entering China''s bearing and gear industry into the European market, it could even be said that It is an existence with a small level of transparency. Even after establishing a stable foothold, if the Equipment Industry Department wants to have an impact on industry, especially manufacturing, it can only do so by providing tilted means at the project and R&D levels. As for directly issuing industrial policies, let the visible big hands take action... Sorry, thats too unmarketable. no. The current Second Equipment Industry Department has been clearly given the authority to propose new industrialization development strategies and policies. ??Furthermore, after the reorganization, Lan Xinzhi, as the first clearly appointed head of the department, directly became the "big brother" from the "little brother" in the same hierarchy. So, even though they are all directors, their qualities are completely different. Dont mention it now. After hearing the congratulations to himself, Lan Xinzhi smiled bitterly: In the past four years or so, our department has been dealing with some specific piecemeal affairs. Now that we have begun to coordinate matters at the policy level, we are still a little uncomfortable..." After all, it is such a big change, and it is normal to need adjustments. Chang Haonan only thought that the other party was being humble, so he comforted him half-jokingly: Whenever you clear up this big table of documents, your work will be straightened out... As a result, Lan Xinzhi was stunned by this casual remark, and then his expression changed from a slightly self-deprecating wry smile to a serious one. Obviously, compared with the so-called incompatibility, the next thing to talk about is the problem that really gives him a headache. Actually, these documents have little to do with the Second Equipment Industry Department ?Lan Xinzhi stood up, returned to the desk, organized the spread documents into a pile, and handed them to Chang Haonan. ??The latter now has the title of consultant, which is justified by looking at these documents. ?Chang Haonan took it in his hand and turned it over briefly. Discovery is a series of approval forms. The format and seal are still the same as those of the Equipment Industry Department of the past, and are obviously not new ones. ??But Lan Xinzhi is carefully selecting from the projects at hand. You should have heard from Director Ding that in addition to the Second Equipment Industry Department, I also have a National Key Project Construction Office, which is responsible for coordinating the construction of major equipment and projects. But Consultant Chang, you also know that really major projects are not decided by units at our level, so it is really not easy to control the scope of business under our jurisdiction..." He stopped abruptly at this point. ?But of course Chang Haonan can still understand the meaning. At this time in 2003, China happened to be at a relatively delicate point in time where "it already had a little money, but it was not very rich". The external manifestation is that you want to let go and do something big, but you are not too willing to let go. ?Huge projects such as the West-East Gas Pipeline, the Qinghai-Tibet Railway, and manned spaceflight are all under the direct control of the Industrial Construction Commission and even higher levels. If implemented into specific businesses, the functions of the four equipment industry departments can be completely summarized. The office headed by Lan Xinzhi is sandwiched in the middle, but close to the original position of the Equipment Industry Department. Place it in the future Industrial Construction Committee system, it seems to be a bit useless. ??But your superiors have handed over a separate new department to you. If you don''t make some moves, or even directly eliminate the sense of existence, it will not be good after all. From Lan Xinzhis point of view, it is indeed worth the headache. ?Chang Haonan randomly picked out a few copies of the information in his hand and read the contents in detail. Then, he frowned slightly. Then I read a few more copies. As a result, my brows furrowed even deeper... Director Lan. ?He showed a somewhat unbearable expression: Whyare they all hosted by university research groups? It is not that Chang Haonan has any prejudice or dissatisfaction with universities. In fact, even in the few tables he pulled out at random, he has already seen the permanent magnet synchronous traction system of high-speed trains, injection excavation and molding technology, underwater compacted sand pile technology, heavy-duty sliding hydraulic system, etc. Many forward-looking research contents. But the problem is that it is too forward-looking. ? Even on the current timeline, it will be difficult for these things to be implemented within ten or eight years. Its not that it cannot be supported, but it is difficult for it to be the head project of the Key Project Construction Office. Just like the underwater packed sand pile. It is one of the core technologies used in reclamation and island building. You want to ask if its okay, of course thats great. However, even if it takes two years to produce theoretical results, three years to verify, and another three years to complete the project. ?According to this devilish efficiency, it would take eight years to build the first island... So Im also worried right now... Lan Xinzhi leaned on his chair helplessly: Now that the big projects that have been clearly approved have been allocated, I can only use a long-term perspective and bet on the future... Hearing what the other party said, Chang Haonan suddenly had an idea: In order to be included in the support scope of your office...are there any hard conditions? ?Although he does not lack resources at the moment, there is no harm in having one more department to support him. What Lan Xinzhi said was originally just a chat between friends, and he did not think of asking Chang Haonan to help. But since the words came to this point, he responded accordingly: First of all, it cannot be military-related projects on the surface. Those will be managed by the National Defense Industry Bureau in the future..." Secondly, it must be independent and cannot rely on foreign countries for the overall project. Of course, it doesnt matter when it comes to parts and components... Then it must have a relatively far-reaching impact on the national economy...but it cannot have too big an impact, otherwise the higher-level departments should take over... After drawing down a bunch of boxes, Chang Haonan finally understood why the other party didn''t look for him in the first place. ?The first and third items alone rule out most of the projects he has at hand. ?However, it is not impossible. What do you think of... Turbofan 20? ?After Chang Haonan thought for a moment, he suddenly suggested: The overall plan is almost ready now. If nothing else happens, the project approval process will begin in the middle of the year. It should not be too late to submit an application now. Lan Xinzhi''s eyes lit up when he heard Chang Haonan took the initiative to rescue him. But then he hesitated for a moment: But thats a military model, right? "I have the impression that Haofei''s twin-engine Y-9 has been under development for some time... In addition, the second equipment target previously estimated seems to be a strategic transport aircraft similar to the size of the IL-76?" Chang Haonan shook his head and organized his words a little: Actually, judging from the experience of developed countries, such as the United Kingdom and the United States, it is difficult to simply define turbofan engines with large bypass ratios, and even large and medium-sized mainline airliners themselves, as civilian or military. For example, the A330, according to our definition, is of course a purely civilian passenger aircraft, but with a little improvement, it can become an A330MRTT aerial tanker. You cant say it is still a civilian aircraft. In turn, the F117 engine used by the C17 transport aircraft is essentially a PW2000, but this cannot be said to be a military model. After all, the same model is also used in the Boeing 757..." "Speaking of the Turbofan 20, although its initial user is indeed the Y-9, the thrust of the 12-14 tons is scheduled to be fully usable on future mainline airliners such as the Boeing 737 and Airbus A320. In addition, if you I really feel that the name Turbofan 20 has too strong a military flavor. Then we can learn from the Americans and have two sets of naming methods for military and civilian use. The one on military transport aircraft is called Turbofan 20, and the one on passenger aircraft is...any other name. " Chang Haonan originally wanted to directly copy the name of Yangtze River 1000, but felt that there was no need to decide on it so early. ?However, Lan Xinzhi became interested instead: Referring to the naming method of foreign aviation engines, the abbreviation of your aviation power group is AECC, so why not call the civilian model...AE1500? (End of this chapter) Chapter 1072 Weird fan design Chapter 1072 Strange fan design When he was reborn many years ago, Chang Haonan would deliberately name some projects the same as in his previous life. But as his influence on the timeline becomes more and more obvious, many models with similar positioning have completely taken a new path in technology. In this case, inconsistent naming will become more and more common. Therefore, Chang Haonan has no objection to the name AE1500, which is easy to understand and consistent with international practice. Since Lan Xinzhi even came up with the name on his own initiative, he has obviously approved the plan. After all, he actually had no other choice. Is there any additional process required? ?Chang Haonan asked bluntly. Well...the detailed steps are actually quite troublesome. ?Lan Xinzhi scratched his head in confusion. Such projects cannot be included in the support list casually because they involve financial support. But by inserting the turbofan 20, Chang Haonan was not taking advantage, but actually helping, just like when the Equipment Industry Department was established a few years ago. ??If you still let people run the process in person, it would be a bit too impersonal. How about this? When the project is approved, a representative from our office can participate, and you can leave all matters related to the construction of key projects to him? He had no choice but to suggest tentatively. Thats not necessary. Chang Haonan waved his hand: After all, the Aerospace Power Group is still under the business guidance of the Bureau of Science and Industry. It is not convenient for outsiders to be assigned to the project, and we are not short of one or two administrative personnel. ?Lan Xinzhi was right. Rather than making up these vain ideas, it would be better to come up with more practical ideas... Consultant Chang, what else does the entire project require? After finishing speaking, he quickly added: "Of course, I mean that in addition to the regular funding level, such as land use approval, or other aspects that require cooperation from other industries, as long as it is within the scope of capabilities, full cooperation will be given... It is best to see that within five years, Some achievements with clear stage significance..." Five years. The meaning of this timetable is already very clear. Chinas institutional adjustments will not be limited to the 2003 wave. Lan Xinzhi obviously hopes to produce some convincing results before the next time. ??But it is impossible to directly put pressure on Chang Haonan. So I had to express my position in a roundabout way. ?However, after all, he has been in charge of the Equipment Industry Department for too long, and his knowledge of the military industry has been refreshed a bit slowly. ?Especially after the Turbofan 10 was finalized, although China has not launched the development of a new aircraft engine model, it has accumulated a lot of experience through two international cooperation projects, the M88/SeA650 and the Trent 900. With these accumulations, even civil aviation products are far more complex in testing and certification than military products. But five years is still relatively loose. After all, Rolls-Royces Trent 900, despite several revisions to the design, took five years from project proposal to planned first flight. The rival engine alliances GP7200 plans to make its first flight in three and a half years. No matter what, the technical difficulty of Turbofan 20 is much lower than that of these two models. This model is ready for everything, all it needs is the east wind. Chang Haonan smiled and replied: As long as the planned funds are available, there will definitely be no problem with the research and development cycle. As for your additional support... Ill just make a note of it for now and save it for when I need it in the future... ?Chang Haonan returned to the capital originally to wait for news about the reorganization of the Science and Technology Commission. Now that the boots have landed, even though what he was worried about has not happened, such a big move still kept the entire aerospace power group busy for a while. ?Therefore, it was not until a week later that the specific division plan of the various departments of the Industrial and Construction Commission came out that Chang Haonan was finally able to return to Haojing. ??Also saw two men sent back by Ren Bingda. The model cannot be disclosed directly, but can you provide us with the necessary design parameters? At the briefing meeting, even Chang Haonan was a little nervous after hearing this statement. Thats right. ?Jin Xu, who was introducing the situation on the stage, quickly explained: So Mr. Rens speculation is that this is most likely a military model, and the reason why the design parameters can be provided is that the other party took advantage of certain loopholes in their contract. ?Chang Haonan was originally prepared to accept Luo Luos cooperation proposal, but now he is even more interested: For military models, do you need to introduce a permanent magnet power generation system? There are not many military aircraft engine models under development in the world, and some that obviously do not meet the requirements are screened out... The answer is readily apparent. "Then what''s there to guess...isn''t it F136...or F135?" ?Chang Haonan immediately sat up straight. . Hmm...we also speculated this way at first, but after getting the data, we are not sure..." ?Jin Xu clicked the mouse as he spoke. The PPT then switches to the next page: They gave some data related to the fan, but to be honest...it doesnt look like a typical military aircraft engine... On the curtain, a design drawing is displayed. . It is said to be related to the fan, but in fact, only the parameters of the blade part are relatively complete. ?Of course, if you just use a new non-contact magnetic bearing on the first pivot point like SeA650, then you dont actually need more parameters. Soon, Chang Haonan understood why the other party said it didn''t look like a military aircraft engine... "This size...if converted, wouldn''t the diameter be about one meter and three meters?" An engineer raised his head after doing some simple calculations on paper, showing a rather shocked expression: What on earth do they want to create? You should know that most military aviation engines do not use particularly exaggerated bypass ratios in order to ensure high-speed performance. Under normal circumstances, the diameter of a high-thrust aircraft engine used in fighter jets is only about 1.1 meters, while the diameter of a medium-thrust engine is reduced to about 0.9 meters. What is the concept of this 1.3-meter diameter on an aircraft engine of normal proportions? The NK32 on the bomber in Figure 160 is only about 1.45 meters. ?This size is generally designed for supersonic strategic bombers with a thrust of 20 tons or more. But this is the 21st century, how can anyone still choose this technical route? ?However, for Chang Haonan, this is not a problem. F135/136 did choose a larger fan size in order to meet the thrust requirements of the F35 "single-engine heavy-duty aircraft" and also perform vertical take-off and landing. If he remembered correctly, it should be 1.27 meters. Including the structure surrounding the receiver, it is indeed around 1.3 meters. On the contrary, it further verified the guess just now. What really concerned him was the shape of the blade. Chang Haonan certainly had no contact with the detailed design parameters of the F135 or F136 in his previous life, but when the F35B takes off vertically, you can directly see the lift fan. Even with the naked eye, he could tell that the blade in front of him was completely different from what he had seen in his previous life. At the same time, Zhang Zhenhua, who was sitting next to him, also noticed something was wrong. But not the shape. Mr. Chang, are the British blades... a little too light? He leaned into Chang Haonan''s ear and asked in a low voice: Although I am just estimating, according to its size, unless it is completely hollowed out and the wall thickness is designed to be very thin, even if it is made of titanium alloy, it is impossible to achieve this weight, right? For a time, the entire conference room fell into silence. Perhaps the British gave us false data to begin with? Soon, someone gave a non-technical guess: According to my experience, they were not so easy to talk to in the past. They dared to come up with design parameters before seeing any benefits. This view has gained a lot of recognition. Haofei Group has had a cooperative relationship with Rolls-Royce as early as the late 1980s. It can be said that they are the group of people in the country who best understand the virtues of the British. As long as something happens, it is most likely correct to think of the worst. ?However, there are also different opinions: At Luoluos level, even if it is fake data, it cannot have such obvious loopholes, right? And they dont have to. Zhang Zhenhua added: "If you want us to agree with the conclusion of the investigation report, you must sign the contract. They will provide the real data sooner or later. If you think it is risky to take it out in advance, you can wait until the contract is signed. There is no need to do this. A low-level fake plan came out..." Everyone was coming and going, and their guesses were getting more and more outrageous. In the end, naturally, there was no one, two, or three. Having no choice but to turn his attention back to Chang Haonan, who was sitting in the first place. But the latter was a little undecided at this time, so he had to give a compromise plan: No matter what, lets simulate the performance of this blade first (End of this chapter) Chapter 1073 British crazy ideas Chapter 1073 The Britishs Crazy Ideas Facing Chang Haonans request, everyone in the venue showed some hesitation. Although Haofa Group''s experience in aviation engine design is still a little lacking, there are still some people who have been tempered by the Turbofan 10 project. They are just numerical simulations of a fan, and they do it mainly out of curiosity. There is no need to pursue it too much. The accuracy is not enough to stump them. On the other hand, after all, this is a matter of being a supplier to others, or even a second-tier supplier. Although at this time point, any opportunity to participate in major international aviation projects is extremely valuable to China, as a supplier, as long as there are no loopholes in the contract level, and then make things according to the requirements provided by Party A. It''s done. As for whether Party As design is reasonable or not, and the resulting progress of the entire project, it is actually not their turn to worry about it. What''s more, considering that the design team of SeA650, especially the permanent magnet power generation system, mainly comes from 606 Research Institute, there is a high probability that this project has no direct relationship with Haofa Group. However, the more important reason is still. ??The computing power resources here in Haojing are indeed tight ??Although the timeline has changed dramatically, it is still only 2003. ? In 2003, in the previous life, China''s first model that fully adopted computer-aided design in the development process, the JH-7A, had not even entered service. ?One of the biggest obstacles that needed to be overcome during the design process of the JH-7A was that the supercomputing performance at the time did not support high-precision meshing operations on the entire machine or even on large components. This hardware condition even almost sent the JH-7A back to the drawing board. In fact, when Chang Haonan first arrived at the 601 Institute in 1996, the operation of converting the quadrilateral grid into a "pseudo-triangular" grid and then performing calculations was first developed to solve this problem. Of course, with the support of a large number of industrial and scientific research needs, the performance of the Sugon 3000 series has now reached the forefront of the world and is no longer comparable to the same. However, for aerospace design with higher simulation precision, there is still not enough money to be squandered as it was ten or twenty years later. Finally, Zhang Zhenhua, who was relatively familiar with Chang Haonan, asked cautiously: Mr. Chang, now the entire group is concentrating resources to prepare for the turbofan 20 project. Do you think... can this matter be put off until later, at least until after the project is established? But Chang Haonan waved his hand: Dont think about it that way. From a broader perspective, this can be regarded as part of the preparations for the Turbofan 20 project... Not only Zhang Zhenhua, but also several other people around him looked puzzled. After all, although the design of this fan is indeed a bit strange, and the size is larger than the general small duct and military engine, but in any case, it is obviously not the same thing as the turbofan 20. Facing the puzzled looks, Chang Haonan had no choice but to further explain: Essentially, the Turbofan 20 uses the mature core machine of the Turbofan 15, and the biggest design difficulty lies in the fan. So, although the properties of the engines are not exactly the same, and we are not planning to make any imitations on the Turbofan 20, it will not hurt to learn more about other peoples experiences, just like exam questions. After finishing speaking, he remembered that someone had just raised the possibility of the British providing a fake design. So he added half-jokingly: Even wrong experiences will still have value. Originally, this sentence was just said casually. Because Chang Haonan also felt that, on the one hand, the British would not fool people with such an obvious fake. ?We all know that it is difficult to develop an aviation engine, but most of this difficulty lies in the combination of design and production. It is just a simple design parameter, not even complete, and not worthy of so much thought. On the other hand, according to Jin Xus feedback, the other party handed over the information to Ren Bingda in only two days after the two parties finalized their intentions. This time is basically the time to delete the most sensitive information and check it again. There was no time to make a fake one. ?However, no one expected it. ?His unintentional words actually turned into a prophecy... ?After Chang Haonan simply assigned the task, Haofa Group divided into three teams, responsible for analyzing and simulating this fan...or strictly speaking, this blade shape. The reason why it is divided into three is because the British did hide a lot of information that may seem inconspicuous but is very important in operation. For example, the number of blades in a fan. As a result, Chang Haonan could only deploy three more likely solutions based on his own experience and the blade design provided by the other party. If its not right, adjust it slowly. As for Ren Bingda... ?According to his initial estimation, the performance test of the fan was not a particularly complicated task. It will take about a few days to get a rough preliminary result. It is not too late to sign the contract after verification. Therefore, Chang Haonan still held two positions in Haojing for a period of time, and was responsible for both the turbofan 20 and the communication relay system. The specific simulation tasks were handed over to Zhang Zhenhua. Then The preliminary results were indeed obtained on the fifth day. But the result itself was quite different from Chang Haonans previous estimate. ? No matter which blade number and layout scheme is corresponding, the blade design provided by the British cannot be said to be exquisite in every aspect, or at least it can be said to be useless. Even Zhang Zhenhua couldnt help but complain: "Mr. Chang... If you really want to design a fan... or a low-pressure compressor with such a low pressure ratio and air intake efficiency, very difficult to process, and a small surge margin, to be honest... it''s quite... Difficult. Looking at the calculation results, Chang Haonan also had some doubts about the software and algorithms he developed for the first time... ?However, Zhang Zhenhua quickly saw what Chang Haonan was thinking, and quickly added: Mr. Chang, I supervised the entire work. The three calculation groups completed the calculation tasks independently, and there was no communication between them. In addition, we actually got the calculation results yesterday afternoon, but because it was so... incredible, I asked them to verify the calculation method using the Rotor67 standard blade shape, and no obvious problems were found..." The meaning of these words is obvious. It is unlikely to be a human calculation error. It is also unlikely that there is a problem with the algorithm or program. Its just that the design provided by the British is not right. But the problem is Forget about Rolls-Royce. Even a few years ago, China could not design a fan of this level. Is it possible that the data is really fake? ?Zhang Zhenhua originally didnt quite agree with this guess. But now there seems to be no other more reasonable possibility. Chang Haonan did not answer immediately. He just turned over the short report and read it twice. ??My brain is also a little hard to wrap my head around: But wide chords, swept bends, and air structuresthis is indeed the current mainstream development direction. "And you see, Ye Shan still has some design space left for the boundary layer active control technology... It shows that the British have actually started to pay attention to our research results a few years ago. If they want to provide false data, it is completely These details can be deleted Boundary layer active control is a technology used by Chang Haonan in the design of turbofan 10. Of course, the turbofan 10 itself has no export record, but it was also used in the development process of M88 and SeA650. It is also normal for the British to discover and follow the application. ??The two people who were puzzled fell into entanglement again. After a period of silence, Zhang Zhenhua broke the silence again: Actually, there are more problems with this blade than just that "oh?" ?Chang Haonan also became interested at this time. He really wanted to know what new tricks an engine fan could create. All three groups reported to me that in the process of preparing for fluid-structure coupling calculations, they found that the rigidity of these blades is very low, and elastic deformation will inevitably occur when the properties of any common material are substituted... So in the end there was no The solution is to give up the structural problem first and produce pure CFD results..." For Zhang Zhenhua, he just complained about his experiences at work. But Chang Haonan was suddenly awakened by his words: Elastic deformation? ?He quickly picked up the report that had been placed on the table: What if we consider aerodynamic loads under operating conditions? "Um?" ?Zhang Zhenhua also raised his head, but he still didn''t realize the meaning of Chang Haonan''s question. The latter had no choice but to explain further. At the same time, he took out a pen and paper from the side and drew a simple diagram: You see, the shape of these blades in the resting state, that is, in the cold state, is indeed very strange, but in the working state, that is, in the hot state, the leaf shape will change accordingly... This deformation, in turn, changes the aerodynamic force, leading to further elastic deformation This constitutes an interaction between structural deformation and aerodynamics ?Zhang Zhenhua is also an old engineer after all. He just didn''t keep up with the leaps in thinking just now. ?Now that it has been sorted out like this, how can you still not understand the meaning: Like the wings in an airplane design? Although his major is aviation design, aviation technology is not divided into two branches. Moreover, Haofa Group has been involved in multiple businesses in the past, so he will not turn a blind eye to the issue of outflow. Thats right! Chang Haonan nodded: "I suspect that the British idea is to completely abandon the blade stiffness in order to reduce the weight of the fan as much as possible. Instead, use structural analysis to determine the optimal aerodynamic geometry of the blade under design conditions, that is, the original thermal blade profile. Carry out inverse calculation to obtain the cold processing airfoil, which is the pre-deformed airfoil. And the data we got is this cold-processed airfoil. If we directly use this airfoil to analyze the aerodynamic performance, we will naturally only get a very bad result! (End of this chapter) Chapter 1074 Aircrafts structural pre-deformation design? Chapter 1074: Structural pre-deformation design of aviation engine? ?Chang Haonan''s bold speculation made Zhang Zhenhua stunned. At a certain moment, the latter even felt that "the British provided false data" which was more realistic. But if you think about it carefully, it seems that it is not impossible. After a long time, he reluctantly spoke again: Then our next step should be ?Zhang Zhenhua quickly recovered his senses, but the mental shock caused just now was obviously not easy to completely subside, so he quickly asked about the next task. Naturally the first step is to verify this conjecture ?Chang Haonan replied decisively. But you just said... Two-way fluid-structure coupling is indeed difficult, but we verified that we only need to do forward analysis. Chang Haonan said and turned the draft paper on the table that was already covered with drawings to the other side: Didnt you say that all three groups have discovered that the blades elastically deform under working conditions? This is actually half the battle. "During the working process, there are two main types of loads acting on the fan blades. One is the centrifugal load, and the other is the aerodynamic load generated when the airflow flows through the blades. Among them, the centrifugal load is relatively easy to study. Basically it is only related to the fan speed, but the aerodynamic load requires us to comprehensively consider the internal flow conditions, as well as the engine...that is, the external overload of the aircraft itself..." Chang Haonan did not choose to gather all the staff for a meeting, but directly analyzed the problem for Zhang Zhenhua himself in the office. On the one hand, this allows the other party to go through a digestion and output process after receiving knowledge input. On the other hand, Chang Haonan himself has no further specific thoughts on this issue. ?Of course, structural pre-deformation design is naturally among his long-term goals. ?However, according to the plan, this should at least be considered after new theoretical breakthroughs are obtained in the N-S equation. The reason why I keep following them is largely because I just want to see what the British have come up with... With the previous experience and Chang Haonans personal guidance, the preliminary calculation results after considering the blade load were presented to the latter in just three days. As usual, Zhang Zhenhua reported with the calculation results: Mr. Chang, after adding the workload to the calculation conditions according to your requirements, the performance of the entire fan, especially the stage pressure ratio and working stability, has undergone fundamental changes. But... after all, we only speculated on a workload and blade material, so the specific index data calculated is still not ideal. Chang Haonan opened the calculation results and glanced at them briefly: The problem is not big, at least in terms of trends, it has proven that my previous speculation was correct. The British are pre-deforming the fan blades, which is enough. Unexpectedly... Comrade Bingda really gave me a surprise when he went to England this time. For him, the focus is on the performance improvement after deformation caused by the application of working loads itself. As for the specific improvement, it is not that important when a lot of information can only be speculated or even blindly guessed. Just tracking the research progress of foreign colleagues. Its not really about design. After a brief pause, Chang Haonan continued: I estimate that the reason why the British handed over part of the data so confidently is because they are sure that we will most likely not be able to see the secret. If some parameters are copied rashly, it will have the opposite effect. And to say the least, even if this data is leaked, it will not be of direct significance Having said this, he smiled and shook his head. With the British character, he should have thought of this a long time ago. ?However, Zhang Zhenhuas expression was quite serious. In other words, he has been in a low mood since he reported the calculation results just now. So this is... the antithesis of the fluid-structure interaction problem? He asked with a rather nervous expression. ?This peculiar way of expression made Chang Haonan think for a moment, but finally nodded: If I have to say it, its true. "Because the numerical solution process is half a black box, it is a bit like the account number and password in a network database. When the algorithm is unknown, even if we have encryption in hand, that is, the data after pre-deformation design, No valuable information can be recovered. "However, this is not what Zhang Zhenhua is concerned about. After receiving Chang Haonans affirmative reply, he almost stood up in excitement: But...how could they do it? The internal flow design of an aircraft engine is much more complicated than that of an aircraft wing. Whether it is CFD or CSM, in fact, humans have not fully studied the theory... or even to exaggerate, at the theoretical level, it is just an entry-level problem. In a field like this, not to mention the inverse proposition, even fluid-structure interaction itself was proposed as early as 1933. As a result, it was not until 1991 that someone used semi-implicit and semi-explicit methods to solve the problem. A system of fluid-structure coupling equations. As for using the space finite element method to discrete fluid-solid coupling model equations with time discontinuous stabilization to solve the flow problem of viscous fluid around a two-dimensional structure, it was after Chang Haonan was reborn that he combined the experience of two generations of predecessors and systematic With help, it finally came true. The systematic use of fluid-structure coupling ideas to solve buckling and large deformation problems of three-dimensional structures is a new function that has only been available since version TORCH Multiphysics 2.0. Of course, the earlier NUMECA can also perform calculations under some special circumstances. As a result, only a year ago, the British began to reverse the operation and use the working blade shape to reversely process the blade shape? This situation really hit Zhang Zhenhua hard. ?There is a kind of thing that took a lot of effort, and finally changed from being unreachable to being far behind, and it seems that it is possible to keep pace with it. As a result, the opponent suddenly accelerated and no one could be seen again. ?This kind of blow is indeed serious. ?However, Chang Haonan is still relatively calm: Actually they may not have done it. ?As he answered, he tapped his pen on the table unconsciously, apparently thinking: I can only say that this may be the British idea, but the idea may not be realized. "Um?" The shock in Zhang Zhenhuas eyes gradually turned into confusion. You know, aviation engines do not only have a few typical working conditions, and the biggest difficulty in structural pre-deformation design is that it needs to provide at least an acceptable degree of deformation for each working condition... ?Chang Haonan worked hard to organize the language and try to make his description as simple as possible: In other words, if we really want to achieve a thorough and successful structural pre-deformation design, we will not just select a few working points to optimize them, but we must interact with the flow field change information in the fluid domain and the structural deformation information in the solid domain. Exchange transfer, calculate the structural dynamics equation under the action of generalized force, and obtain the deformation caused by unsteady aerodynamic force through the nonlinear transient response analysis of the structure through modal superposition, thereby predicting the anti-torsion blade shape..." "Even if you only consider centrifugal force, this process is quite complicated in theory, not to mention aerodynamics and temperature. Frankly speaking, almost all existing engineering methods were developed by me, so I can make a bold judgment. It would be almost impossible to accomplish without completely new theoretical tools So I estimate that Rolls-Royce will eventually return to the traditional rigid blade design. ?Chang Haonan, as a professional engineer, naturally has to dare to make judgments. Besides, whether it was the F135 or F136 of the previous generation, they finally switched back to the traditional rigid design. It shows that at least at this point in time, Luo Luo does not have the ability to solve the problem. ?After listening to Chang Haonans analysis, Zhang Zhenhua recovered a lot from the shock he had just received. But I still have some doubts: But Mr. Chang, if this is really a fan developed for F135 or F136, then according to the plan, the JSF project will first fly in 2005 and enter service in 2008. How can the British have time to go back and forth like this? Hearing this question, Chang Haonan almost laughed out loud. He knows very well that there are countless abstract activities in the entire JSF project. Until his rebirth, the latest news from Lockheed Martin is that they have abandoned the complete technical state, which is the block 4 batch of F35. In other words - There are some problems that we cannot change no matter what, so you can make do with it... Dont worry, I can make a bet with you. ?Chang Haonan held back his smile and said to Zhang Zhenhua: Let alone 2008, the JSF project will not be able to form complete mission capabilities in another ten years by 2018. As for this structural pre-deformation design He thought for a moment, then continued: On the British side, Im afraid they will only be able to stay on PPT for a long time (End of this chapter) Chapter 1075 Go abroad and go to the world Chapter 1075 Going abroad and going to the world ? Zhang Zhenhua did not directly respond to Chang Haonans statement. ??However, judging from his expression, it is obvious that he is still a little doubtful. What, you dont believe it? Chang Haonan asked half-jokingly. Actually, he also knows. It is normal not to believe it. ??Although the United States in this life has been experiencing ebb and flow, it does not seem that powerful and invincible. But no matter what, he still deserves to be called a powerful enemy. At this point in 2003, the general view was that Americas world leadership would continue to be significantly challenged until at least the middle of the 21st century. Who would have thought that 20 years later it would be on the verge of collapse. After hearing Chang Haonans question, Zhang Zhenhua simply expressed his thoughts: "Normally speaking, the previous ATF plans (that is, YF22 and YF23) were more difficult to develop and were older. Although the F22 has not completed all tests yet, it seems that the timetable for entering service in 2005 should still be achievable. "The positioning of the JSF project itself is to focus on multi-purpose ground strikes. The requirements in all aspects, especially in terms of stealth and mobility, are not as demanding as those of ATF. Many specific subsystems can even benefit from latecomer dividends. For example, Pratt & Whitney''s F135 engine actually directly uses the core engine of the F119. From any point of view, the development difficulty should be smaller, right? " "Even if the lift fans from the British side are a bit too radical, in order to do structural pre-deformation design, the optimal shape must be found in advance. The worst-case scenario is to regress the technology to a certain process in the middle. This may affect the progress of the vertical takeoff and landing model, but the F35B''s schedule is originally later than the other two models..." In fact, logically speaking, this analysis should be correct. Even taking into account the additional troubles caused by the three-type universal, the overall development difficulty of the F35 is significantly lower than that of the F22. But there are some things that it doesnt make sense to you. For example, the amount of program code for the F35 was too large, and the most critical period of development coincided with the bursting of the Internet bubble. As a result, the United States could not find an independent contractor to complete the huge code base of this model. In desperation, most of the code had to be written by The original planned Ada language was converted to C language, and then split and outsourced to multiple different companies for development. ? Anyone who has ever done a project can guess how much trouble this kind of operation will bring in the later stage. It was also during this period that Indian engineers and executives began to enter Silicon Valley in large numbers, and companies run by Indians followed closely behind, occupying the vast majority of the code subcontracting market at extremely low prices. ?So, its logical. A considerable part of the core code of F35 was actually written by Indians. By the time Lockheed Martin discovered that there were problems between these codes and wanted to go back and make repairs, the companies that had taken the order had long since disappeared and had to find another contractor to make repairs... To sum it up, its Thats great, Hayek. ?Of course, these details have either not happened yet or have not been made public, and Chang Haonan certainly cannot say them directly. ??Had no choice but to choose a more roundabout way: The JSF project is not just a technical or military issue. "In addition to meeting the U.S. military''s needs for fourth-generation multi-purpose fighter jets, it is also very important to bring Europeans in for joint research and development, completely killing the possibility of European countries independently developing a new generation of fighter jets... This plan is successful. Thats good, but once there are too many stakeholders involved in a project, technology is often no longer the main factor... You should have experienced this, Lao Zhang, and trouble will inevitably occur in the end. "If nothing else, today the British dare to secretly ask us to help complete core subsystems such as lift fans, but tomorrow they will dare to ask the Russians to buy titanium alloy substrates, or even ask Indians to help write flight control programs. ? ?This speculation is inevitably a slippery slope. After all, "looking for Indians to help develop flight control" is obviously not suitable to be juxtaposed with the previous two. ?However, this meeting between the two was just a small talk. Zhang Zhenhua thought for a moment and did not continue to refute. Instead, after pondering for a while, he suddenly returned to the topic: Speaking of which, Mr. Chang, since you are sure that the British cannot proceed with this technical route, then the contract they offered...should we agree to it? Agree, of course I agree! ?Chang Haonan even tapped the table: Its just that a clause must be clearly added to the terms, that is, if the design of the fan changes in the future due to reasons that are not our responsibility, then the contract must be extended by default, and the new plan will need to be paid again. This is definitely a reasonable request. ?Furthermore, the British themselves are also Party B of the JSF project. Even if there are losses, they will not bear the bulk of the losses in the end. Then Ill contact Comrade Bingda right away Zhang Zhenhua immediately prepared to stand up. But he was stopped by Chang Haonan from behind: "etc" The former had half raised his buttocks and sat back down. Remember to talk to Comrade Bingda and say that we can consider acquiring a company within the EU specifically to complete this transaction. This somewhat sudden addition made Zhang Zhenhua confused for a moment: Buy a company? Continue to follow the Trent 900 plan and go through the Ciro Group Chang Haonan waved his hand, lowered his voice slightly and explained: "On the one hand, although half of the Ciro Group is owned by Rolls-Royce, it is still registered in our country after all. It is basically enough for an enterprise of this nature to deceive the media and Party A users on civilian models, but If we want to get involved in a core NATO project led by the United States like JSF, Im afraid its still not ready. Its better for us to hold a controlling stake in a small European company in a more hidden way... ? ? ? On the other hand, after these years of development, our relationship with the European market has improved. We are getting closer and closer, and it is time to consider taking the initiative to go out. Sometimes, it will indeed be easier to operate with a layer of EU clothes..." Hearing this, Zhang Zhenhuas eyes suddenly lit up: I heard that the Italian company AvioAero seems to be seeking new investment recently. Is it possible to consider... Since 1997, Huaxia has established very deep cooperative relationships with many Italian companies, especially Finmeccanica. To this day, after experiencing cooperation on multiple models such as MA60, AC139, and NH90, both parties have formed some path dependencies - To a certain extent, this is not a derogatory term. When the external environment is stable, having a path to rely on is not necessarily a bad thing. After all, Italy is a founding member of the European Union and the Euro, as well as one of the Schengen countries. No matter how unsatisfactory it is economically, it still has a higher status than those Central and Eastern European countries that later joined the EU. Or rather, it is precisely because it is not very successful economically that it is easier for China to become a springboard for China to enter the EU market. ?However, when it comes to the specific company AvioAero, it really doesnt meet the requirements. So after a moment of hesitation, Chang Haonan still gave a negative answer: "Although AvioAero occupies a small share in the aviation industry, it is well-known as a gas turbine giant and is not suitable for our first overseas venture. Moreover, there are rumors that General Electric is seeking to acquire AvioAero''s aviation department. At this juncture, It seems inappropriate to compete with them..." The F136 engine is a model jointly developed by Rolls-Royce and General Electric. When GE took a look, it discovered that a company it had failed to acquire had become a supplier of core subsystems. ?That is not a problem that can be solved by turning a blind eye... Soon, Ren Bingda, who had been waiting in the UK for more than half a month and was feeling numb, finally received feedback from the country. ?Of course, because there was a lot of content, his two subordinates took it there personally. To sum up, it can be agreed, but a few more conditions need to be attached. He took a brief look and found that these conditions were not excessive. Its more of a disclaimer than a requirement. ?Hence, he quickly added new content based on the previous protocol version, and then found Panos Watson again. ?This time, Watson and Professor Elinor were the only two people in Watson''s office. Tim Purdy, who had been in contact with China until now, was nowhere to be seen. Seemingly noticing Ren Bingdas confused eyes, Watson took the initiative to explain: Thanks to our... close cooperation, Director Bodi has returned to France to start negotiations with Airbus for the air test of the Trent 900 project, and the final results should be announced soon... The test accident of the Trent 900 is an internal problem of Rolls-Royce. Therefore, although the investigation report has not yet been finalized, at least it will not affect the normal development of subsequent work until it is actually installed and tested. "I see" ?Ren Bingda nodded: Then I hope the next work goes well... ? He ??didn''t care about the other party''s spring and autumn style of describing the accident investigation as "cooperation". Huaxia has already gained a lot of benefits in this wave, and it is acceptable to give in in terms of face. Immediately afterwards, Ren Bingda turned around and signaled to Jin Xu, handing the revised agreement to Watson: "My superiors agreed in principle to the new cooperation project. Of course, they also approved the accident investigation results we submitted. If there are no problems, then we can choose a time to sign the cooperation agreement and the final Investigation report ?Of course, Luo Luo is not a grassroots team. ?It is impossible for two people to make a decision on the spot as soon as they put it together. Therefore, Ren Bingda did not stay too long. After confirming that he had left, Elinor quickly made a phone call. ?Less than a minute later, another middle-aged man who was slightly older came in hurriedly. Director Hartman, these are the conditions given by China. Please take a look. ? Watson gestured towards the agreement on his desk. Of course Im relieved that you two can agree on the result Hartmann said this, but he still opened the agreement in his hands smoothly. Soon, his expression became visibly relaxed, and he obviously had no objection to the content. ?Even, there was a bit of joking in the tone: Even the white gloves are ready... It seems that they... or you, are very skilled in this operation..." Watson waved his hands modestly: Businesseach other. For a time, a happy air filled the office... (End of this chapter) Chapter 1076 F136 Critical Design Review Chapter 1076 Critical Design Review of F136 In fact, even in the eyes of Watson and Elinor, Hartmann''s introduction of Chinese technology into the core subsystem of the F136 project should be quite a tightrope operation. Hence, it should be done in a very cautious manner. But the actual situation completely exceeded their expectations... Just three days later. The other side of the Atlantic Ocean. Maryland, Montgomery County, Bethesda. ??In a conference room at the Lockheed Martin headquarters, a small-scale meeting with a slightly tense atmosphere was taking place. ?Sitting gloomily at the head of the conference table is John Schwartz, the technical director of the Joint Strike Fighter project. A few days ago, Pratt & Whitneys F135-PW-100 engine has passed the key design review. It is expected to complete the assembly of the first production engine in September this year and start testing before the end of the year. ?Schwartz finished reading the report in front of him leisurely, then raised his head and looked at several executive-level R&D personnel from General Electric and Rolls-Royce in front of him: Everyone, as far as the entire project is concerned, the JSF is progressing very smoothly, but the F136 as a backup power option has been unable to pass the third phase of critical design review... He did not continue. But the meaning is very clear. Just very dissatisfied with the current progress of F136. But... Mr. Schwartz, wasnt the F136 system development and demonstration phase (SDD, the fourth phase in the American development process) contract originally expected to be signed before the end of 2005? ?Daniel McCormick, who is responsible for the JSF power project at General Electric, only feels a little numb. This is completely different from what we said before. F136 originally had a series of black technologies including variable circulation, pre-deformation design, and permanent magnet power generation system. If you can complete the project according to the original plan, you can already burn high incense. ??Now he suddenly wants to advance the time node by two years, which is simply killing him. Furthermore, it is not in compliance with the previous contract. But Schwarz shook his head: I also hope that a promising project like the F136 can be continued, but the Department of Defense and the Congressional Accountability Office want to continue. They believe that the F136 program is too cost-effective and therefore request that further funding for replacement engines be stopped. Unless we can clearly achieve the new project node before October this year, it may be difficult to obtain project funding for the next 2005-2007 years. ?McMcMick frowned immediately after hearing the name of the Congressional Accountability Office. On the one hand, this department is indeed powerful. And they have the power base to cut off their source of funding. on the other hand ??Also saw the contradiction in Schwarzs words. The Accountability Bureau is not a department that has nothing to do every day, and it simply does not have that much energy to focus on secondary projects. ?Their audit object will only be JSF itself, and will not single out the F136 or F135 engines alone. In other words, if the JSF project was progressing very smoothly as Schwartz said, the Accountability Office would not pay attention to it at all. In comparison, it is more likely that JSF itself has already had big problems at the audit level. ??The kind that even makes Loma lose face. Of course, it is impossible for anyone to be responsible. But you have to do something, at least to make it look good. The F136, which was originally used as a backup and had a high probability of becoming a gold-eating beast, became an "acceptable" victim for both parties. ??Anyway, everything seems to be going well with F135 now, so it doesnt hurt to not need F136 as a backup. ?It can also save a lot of money on paper, so that the JSF project will no longer be in danger of overspending in a short period of time. As for reaching a clear project node before October... Its just a nice way to say it Its already May now. In terms of the efficiency of the JSF project, the review itself will take two to three months. In other words, they have to complete all preparations for the third phase of critical design review by August at the latest... Why dont you go to heaven? But the problem is that the YF120 produced by General Electric in the ATF project has failed. You should know that civil aviation power does not require variable cycle technology that takes into account both supersonic and subsonic operating conditions. Europe has no plans to develop a new generation of fighter jets in the foreseeable future. Therefore, if the F136 collapses again, all the research and development efforts they have invested in the field of natural variable circulation will basically be in vain. ?Perhaps General Electric, a big company with a big business, can bear this loss. But McCann, as the project director, absolutely cannot. F136 is gone, and even if he is not unemployed, there is a high probability that he will no longer have any future. For a time, the air in the entire conference room almost solidified. ?However, just as McCann was preparing to argue in accordance with the agreement, Neil Brown, the JSF project manager from partner Rolls-Royce, signaled to him to calm down for the time being. ?This made the former hesitate for a while ?Brown is a project manager at JSF. Not the project manager for the F136 engine. There is not much difference between the two positions at GE. But it is completely different in Luoluo. Because the lift fan of the F135 is also designed by Rolls-Royce. In other words, for Brown himself, no matter what the result of JSF''s power selection is, he can be on the winning side in the end. Its nothing more than a big win or a small win. So the interests of the two people are actually not completely consistent. However, in the end, considering that it was not a good idea to confront Party A head-on, McCormick chose to accept Brown''s suggestion for the time being, saying that he would recommend to the company to speed up the development process of the F136 and strive to complete the key design review before October. After leaving Lockheed Martin and boarding the business jet back to Evendale, McCormick still couldn''t hold back and spoke highly of Schwartz with fierce words from a distance. ?But an explosion is an explosion, and in the end it can only be done out of anger. It does not really help solve the problem. ?At this moment, Neil Brown took the initiative to come opposite him: Dan, we have to do something before October. He said straight to the point. ?At this time, McCann''s mentality was about to collapse, and he stopped being secretive: Dont think I dont know, Neil, even if the F136 project is cancelled, you can still make a lot of money in JSF, right? ?The other party did not deny it: Indeed. ?Brown replied: But we have also invested 40% of our research and development resources on the F136. It is impossible to watch this model suddenly die suddenly. "Can" ?McMcMick''s words stopped abruptly. ? He ??suddenly realized that the reason why the other party showed such a calm look was probably not, at least not just because he was stepping on two boats at the same time: Do you have any idea? Schwarz made it very clear. Brown turned his head and looked through the porthole at the increasingly smaller airport buildings below: As long as we pass the critical design review by October, there is no chance of losing funding before 2007. A few days ago, Tom Hartman, the director responsible for the design of the F136, reported to me that he had found a way to use permanent magnet power generation technology on the F136. ?McMcMick was delighted at first, and then felt something was not right. ??If the problem could be solved so quickly, there would be no need for Luoluo to delay it for so long before. So, he almost subconsciously asked: What can be done? Dont worry about it. ?Browns tight-lipped tone is more likely because he doesnt fully understand: In short, it is expected that a specific design plan will be available soon... As for the natural variable cycle and pre-deformed blades, it is not difficult to implement at least on paper. The so-called critical design review is somewhat similar to the design plan demonstration. There is no need to build a real thing. The first principle prototype will not be produced until the system development and demonstration stage. As for the prototype, it will be even later. McCann, who is also a veteran, felt that something must be wrong, but he couldn''t pay attention to too many details in this situation, so he could only focus on the main contradiction: But didnt you hear what Schwartz meant just now? He asked somewhat eagerly: The time point is obviously just an excuse. The point is probably that the Ministry of National Defense doesnt want the backup model F136 at all. Even if we survive this time, sooner or later we will find other reasons to kill it! Of course I heard it Brown shrugged indifferently: So, our next goal is not to actually design the F136. Ah? The people of McCannmick were stunned. ?Brown patted the old mans shoulder lightly: Delay time, get as many rounds of funds as possible, and then find a way to stop the loss... (End of this chapter) Chapter 1077 The goal is global airworthiness Chapter 1077 The goal is global airworthiness Almost at the same time, Brown and McCann were worrying about the F136 engine and even the entire natural cycle technology route. Huaxia, Haojing. Although it is almost nightfall, the headquarters building of Haofa Group is still brightly lit. ?After successively finalizing several large cooperation orders with Europe, Haofa, or the entire aerospace power group, has finally completed all preparations before the establishment of the Turbofan 20 project. Today is the day when project approval officially begins Complete project establishment work requires the examination of a large number of technical and feasibility study documents. It is actually a quite boring task and cannot be completed in three or two days. Therefore, what is going on now is just a launching ceremony, with Chang Haonan briefly introducing the project situation and the overall technical plan. Of course, the Turbofan 20 is the model that Chang Haonan personally took charge of after two years. ?Hence, it is not difficult to predict that the specifications will definitely be full. At least it will be much higher than the QC300 a year ago. ?But foresight is foresight. Chang Haonan was still a little surprised when he actually saw the list of experts and leaders attending today. Researchers related to aerodynamics, engineering control and materials science are not to mention. At the Industrial and Construction Committee level, Li Zhongyi, who had just officially taken office, attended in person. And, higher-level leaders in charge of the development of high-tech industries were also present. ?Although the other party said that he would only listen and not express any opinions, he asked Chang Haonan and others not to put too much pressure on them. But coming here to show up at this juncture itself represents the attention from the top. Or support. Correspondingly, the General Armament Department, which had more dealings with Chang Haonan in the past, only sent a delegation of average level and size this time. ? It is not difficult to see that the military attributes of the turbofan 20 are deliberately weakened. But this is also a real hardship for the comrades in charge of arranging conference affairs. ?When Chang Haonan checked the final plan the day before, he found that even several academicians were not assigned a seat next to the conference table... In the list, Chang Haonan also saw a name that was completely unexpected. His mentor, Du Yishan. Although academicians, especially senior academicians, mostly retire unless they have physical reasons. But maybe its because he did bring out a more up-to-date close disciple. In short, Du Yishan did live in seclusion after leaving the front line. Rarely participate in such official level activities anymore. Even people like Chang Haonan and Liu Hongbo often had their requests to visit unless it was a holiday. ??Now that he appears in Haojing, he may have been specially invited by his superiors. "teacher." ?After greeting the senior leaders, Chang Haonan looked around at the door for a long time before waiting for Du Yishan, who was surrounded by several staff members. ?Then he quickly stepped forward to help the other person sit down. But the latter raised his hand and refused: "Okay, okay, I''m not too old to walk..." As he spoke, he even sped up his pace. Actually, what Du Yishan said was a bit modest After retiring, he looks much younger than before. I can only say that even at the level of an academician, the work is indeed quite torturous... ?After some pleasantries with acquaintances present, Du Yishan finally sat in the seat assigned to him. Chang Haonan was also able to use the excuse of "accompanying the teacher" to take a break and relax for a while. Teacher, to be honest, I didnt even expect you to come out in person. ?While placing the cup with tea in front of Du Yishan, he said with some emotion: Although its only been four years since I graduated, I feel like I havent seen you in a venue like this for a long time. Its not really a debut... You should have seen the list. I am actually not in the project review team. I am only present as an invited expert. In fact, I dont deserve to sit in such a high position..." ?Du Yishan took a sip of water slowly, and then said in a half-joking tone: I guess the higher-ups cant think of anyone else who can review your project... When the Turbofan 10 project was approved, you made it a live lecture. Before setting off from the capital this time, Lao Ding also told me that he wanted to know what other tricks the turbofan 20 could do... Chang Haonan was a little uncomfortable hearing Ding Gaoheng''s name suddenly in this context. ?But after thinking about it, it makes sense. ?After handing over the director position to Li Zhongyi, Ding Gaoheng took up a casual position and waited for his retirement in two years. ??Although as an academician-level expert, you can still find reasons to come if you really want to participate. ?But this is after all a critical and sensitive stage of organizational reorganization, and Turbofan 20 is the first key project handled by the new unit of the Industrial Construction Commission after it was established. If he, the "old leader" who had just stepped down, appeared at the same time as Li Zhongyi, there is no guarantee that people would not think too much of him. ?However, Chang Haonan still gave it a try: You should know later At seven o''clock that night, the launching ceremony officially began. With Chang Haonan''s current status in the world, there is no need to be overly polite. Therefore, he just gave a brief welcome speech, and then quickly got to the point: "Everyone, the turbofan 10 has been put into mass production for more than a year since it completed the production and finalization evaluation at the beginning of last year. Including the previous small batch trial production, a total of 127 units have been put into use, with a safe flight time of more than 100,000 hours, without causing any The third-class or above flight accident has received unanimous praise from Party A and customers..." "At the same time, our group has also cooperated with foreign companies in the past two years to successfully develop the SeA650 turbofan engine with a medium bypass ratio. It has been equipped on the Falcon 8Z business jet for test flights, and has undertaken the Rolls-Royce Part of the production business of Royce''s Trent 900 engine turbine components and accessories, it has accumulated certain experience in civil engines..." In addition, it is worth mentioning that not long ago, we also helped to identify the cause of an accident related to the prospects of the Trent 900 project. Not only were we exposed to many cutting-edge design ideas in the process, but we also further improved our countrys international reputation. The right to speak in the aviation manufacturing industry. These words are not only a background introduction, but also a summary of the work of the Aerospace Power Group since its establishment. ?Although everyone here is aware of and even participated in everything. But when these results were summarized by Chang Haonan and listed together on the PPT, it still brought an immeasurable shock ?Unconsciously, China has become equal to international aviation giants like Rolls-Royce in some fields. So much so that when he finished speaking a long paragraph and paused to take a sip of water, the gasps of everyone could be heard quietly in the huge conference room. ?It wasnt until Chang Haonan opened the lid of the cup and there was a clicking sound that the first person reacted and started applauding. Suddenly, it was like a switch was turned on. Thunderous applause resounded throughout the entire venue in an instant. In the end, Chang Haonan had to raise his hand and press it down to cool down the atmosphere in the entire venue again: "In this context, we believe that we are fully qualified to rely on the relatively mature core engine of the Turbofan 10 to develop a large bypass ratio turbofan engine with a thrust between 12-14 tons and mainly used for passenger aircraft and transport aircraft. The Group The layer is temporarily named AE1500..." Here, he specifically used the name he had discussed with Lan Xinzhi before. Mainly for rigor. In fact, names such as turbofan XX and turboshaft XX should be given to the equipment by the users, that is, the troops. ?However, because for a long time, China''s aviation manufacturing industry has been specialized in aviation, so these names have gradually been accepted by manufacturers. Later on, the names of models such as the Turbofan 10 and the Turbojet 14 were already decided for the users even at the beginning of the project. Both sides dont think there is any problem. But with the development of the industry, it has become clear that China Aviation Developments users are no longer only the military. Then when establishing a project, there should also be a commercial model name assigned by the manufacturer. As for Turbofan 20, it should be formally determined after the aviation force passes the acceptance test. ?Of course, in todays meeting, these parts can only be regarded as details. Because when Chang Haonan announced the name of AE1500, the goal he set for this model was also projected on the curtain in front. Suddenly there was a burst of exclamation in the scene. At the top of the list is naturally thrust. The sea level thrust of the basic model is 13500kgf, which can be adjusted from 11500kgf to 14500kgf according to different sub-models. For the target installation target, it is considered to be at a satisfactory level. ?However, the focus of large bypass ratio turbofans is not originally here. What really exceeded the expectations of the big guys was another table further down. Considering the difficulty of research and development, testing, mass production, and gaining market acceptance, AE1500 should be benchmarked against similar products of the 2010s in advance to ensure that it does not fall behind in future competition. Therefore, compared with the current benchmark model CFM56-7B engine, the AE1500 plans to reduce fuel consumption during cruising by 10%, reduce noise by 6dB, and reduce carbon dioxide and nitrogen oxide emissions by 25% and 40% respectively Compared to the data themselves, what is more surprising is the focus of this model. As if seeing everyones confusion, Chang Haonan explained: As a model for the commercial market, in addition to the hard indicators we traditionally focus on, factors at the international aviation policy level must also be taken into consideration. Since the end of the last century, Europe and the United States have gradually tightened regulations in the field of aircraft emissions. This is of course for environmental protection, but on the other hand, it is also setting up additional obstacles for latecomers like us..." When he said this, Du Yishan in the audience suddenly guessed his disciples goal this time Obtain global airworthiness certification! (End of this chapter) Chapter 1078 We can also play the environmental protection card Chapter 1078: We can also play the environmental protection card Sure enough, just as Du Yishan guessed. Chang Haonan almost immediately announced his long-term goal of obtaining EASA and FAA airworthiness certification for the AE1500. If we say that at the beginning of the meeting, he caused silence in the audience because of his achievements. ?Now, ambition has caused an uproar. China did achieve mutual recognition of airworthiness with the EU and the United States in 1997 and 1998 respectively. This is also the main reason why SeA650 and Falcon 8Z can enter the international market without any obstacles. Including the MA60, it also occupies a considerable market share in the short-haul aviation field due to its quietness and low cost. Not only third world countries, but also entered the aviation market of several Central and Eastern European countries. Even the Tu 334 has sold dozens of aircraft by relying on the C808 reskin. Objectively, it helped Tupolev, who was on the verge of bankruptcy. However, C909/Figure 214 failed to obtain European and American airworthiness certification. At present, there are still only two producing countries and a few users sanctioned by the West. After all, the above are all subject to strict restrictions. The take-off weight is not more than 50 tons, and the maximum passenger capacity is not more than 100 seats. That is, regional aircraft and business jets, as well as corresponding supporting subsystems. This part of the market is not mainstream in the entire aviation industry. ?In this regard, it was Chang Haonan who grasped a key point in the competition between Europe and the United States, and managed to win it with great difficulty. But the AE1500 is a different story entirely. Thrust range of 11.5-14.5 tons. ?Everyone knows that this is designed for mainline airliners. ??Moreover, it is a mainline passenger aircraft of the Boeing 737/Airbus A320 level ?Although it is not as dazzling in size as giants such as Boeing 747 or Airbus A380. However, judging from the proportion of output, it belongs to the absolute backbone of the air transportation industry. It is also the most important source of profits for the two major aviation companies, Boeing and Airbus. Although China has not yet announced its research and development plan for this level of passenger aircraft. But now that you are applying for airworthiness certification for the AE1500, you are obviously preparing to steal the cake from your peers. Grab the biggest piece as soon as it comes up. How could EASA and FAA relent so easily? But then again. ?If this goal can really be achieved, even if it is not the mutual recognition of airworthiness as before, the benefits it will bring will be almost incalculable. On the one hand, the AE1500 itself is very competitive. If it can be put into large-scale commercial use around 2010, it will occupy a significant position within a time window of several years, in other words, before the next generation products of competitors are put into service. Performance advantages. ??If there are no airworthiness issues, then Airbus and Boeing may really dare to install it on aircraft. After all, if the capitalists are anxious, they can even sell their own hoisting ropes and install them as Chinese engines, so thats not a big problem. On the other hand, it is also more important. This will be a leap from zero to one. Once the AE1500 passes airworthiness certification, it will be much easier for China to build a passenger aircraft equipped with an AE1500 engine and pass the certification. ?That will truly be the spring of Chinas aviation manufacturing industry. Therefore, even the leader who stated "not to express any opinions" before the meeting could not help but start a few discussions with a few people around him. Later, he probably remembered his previous promise and quickly shut up. ?Chang Haonan also deliberately did not continue immediately, but listened specifically. Generally speaking, there are people with different attitudes on the scene. But most people, including Li Zhongyi, still feel that the prospects are not optimistic. ?However, even though he said this, the sharp-eyed Chang Haonan still noticed that the words "global airworthiness" were circled in a big circle on the other party''s notebook. Obviously I have some thoughts in mind. ??Its just that as the newly succeeded head of the Industrial and Construction Committee, its not easy to draw too radical a pie right away... Of course, it was a meeting after all, and it was impossible for everyone to completely leave Chang Haonan aside. So after a few minutes, the noisy conference room gradually became quiet. Comrade Haonan. This time, the question is from Liu Zhenxiang: Are there factors that are too uncontrollable about this goal? In fact, Liu Zhenxiang himself is quite optimistic about Chang Haonan''s goal. The reason why I ask this is because there is really no other way ?Among the people sitting at the scene, he was the only one qualified to raise such a question to Chang Haonan in the field of aviation development. And of course the latter also knows that this is part of the normal process. After all, when setting up a project and starting work, you have to ask questions. It cannot end peacefully and happily. Hence, he was already prepared for this: First of all, regarding uncontrollable factors...it is indeed foreseeable that neither EASA nor FAA can easily pass airworthiness certification, so I set it as a medium- and long-term goal. As I said at the beginning of the meeting, our country is gradually and deeply participating in international aviation industry cooperation and gradually occupying an upstream position. Although it will be difficult to shake the core voice of Europe and the United States in a short period of time, have been able to exert some limited influence. In addition, it is foreseeable that in the next few years, Western countries will become more and more inclined to exert their efforts in the field of environmental protection, and we can follow this trend and not only not stop it, but actively push it to the extreme, so as to Operationally, it is to introduce or announce stricter emission policies than those in Europe and the United States, which in turn will restrict their products from entering the Chinese market and ultimately force them to compromise. " "Of course, if you want to enter the European and American certification market, you can''t be alone. The good news is that we have reached a relatively good cooperative relationship with Rolls-Royce, and they have also lost 12- We are worried about the huge market of 14-ton class. If the British side agrees to provide support, then it does not rule out the possibility of introducing international cooperation in civilian models..." As for the initial period after finalization...I believe that the military and domestic civilian markets are enough to form a positive cycle of user data and business costs..." In fact, Chang Haonans idea is somewhat similar to the new energy vehicles in the previous timeline You play the environmental card, we can play it too. First, Europe took the lead in issuing policies, saying that it would restrict or even completely ban the sale of fuel vehicles. ?Although anyone with a discerning eye knows that this is impossible, there are still some people who really believe it. As a result, European car companies, which were slow to respond, lagged behind in this field and were overtaken by their Chinese counterparts. Even reversely promoted the development of China''s fuel vehicle technology. ? Even if they later come to their senses and start using non-market means to protect their markets. But on the one hand, at least the Chinese market has completely changed, ending the good days when foreign companies could make money just lying around. On the other hand, closing the market is tantamount to giving up the right to speak. From the perspective of industry development, it is tantamount to drinking poison to quench thirst. The specific situation in the aviation field is of course much more complicated. For example, users are mainly large airlines rather than private individuals, and the market is far more controlled and closed than the automotive industry. But the principle is actually the same. ??Moreover, Chang Haonan''s goal is relatively conservative, and he does not say that he will rely on the AE1500 to overturn the British and American models. Just want to participate in sharing the cake. ??Even planned to give Luo Luo a piece of it. The operability is still there. ?Of course, all this has a prerequisite. That is the aviation engine produced by China. Regardless of other performance, it must at least be more environmentally friendly than similar products in Europe and the United States. Otherwise, the last operation will be self-defeating and harm yourself. Therefore, Liu Zhenxiang quickly said: "So, at the technical level, although the CFM56-7B is already a model several years ago, as Comrade Haonan just said, it is still the performance benchmark for aviation engines of the same level. So... in basic disciplines such as materials science, in How can we achieve the indicators in the table just now when no significant breakthrough can be achieved in a short period of time? This question is actually a bit like giving a message to Chang Haonan. This is exactly what I want to introduce next... ??The latter smiled, and while answering, he came back to the back of the small podium and turned the PPT to the next page. The above is a 3D schematic diagram of a large bypass ratio aeroengine. We are going to learn from the ideas in the field of gas turbines and move the intercooling and heat recovery technology to aeroengines... Of course, strictly speaking, the intercooling system is first, and then the complete intercooling and heat recovery system! (End of this chapter) Chapter 1057 Its okay, theyll be back Chapter 1057 It doesnt matter, they will come back In this era, the means of transnational communication are still relatively poor. ?Especially, China lacks its own satellite communication system, resulting in classified information still highly relying on traditional encrypted radio transmission, and the communication efficiency is very low. If you want to transmit something other than text, it will be even more troublesome. Fortunately, Liu Yongquans European trip is already coming to an end, and the early warning aircraft project is not in a hurry. So, he simply used his last few days in France to have a frank, open and constructive communication with Dassault. And along with a lot of information obtained during this trip, he submitted it to Chang Haonan Although the latter had made plans to stay in Haojing until the second half of the year, an unexpected incident disrupted the plan. The Commission of Science, Technology and Industry for National Defense is about to be reorganized. In fact, since the establishment of the Equipment Industry Department a few years ago, the functions and positioning of the Commission of Science, Technology and Industry for National Defense have begun to change. From being solely responsible for the defense science and technology industry, it has gradually evolved into coordinating the development of the overall industry and cutting-edge technology. The superiors have also been deliberately downplaying the military-related nature of the Science and Technology Commission. For example, the three deputy directors who were transferred in the past two years no longer have military positions. However, most people, including Chang Haonan, still believe that the Commission of Science, Technology and Industry for National Defense itself can continue to exist for some time. However, after the 2003 conference, rumors quickly spread that the Science and Technology Committee would be included in the new round of institutional reorganization. It is said to be a rumor, but it is basically what the above said. So the accuracy is close to 10%. ?However, no one is sure yet what the specific reorganization plan is. There is talk that the Science, Technology and Industry Commission, like the previous Ministry of Machinery Industry, may be split into other different systems. There is also talk of merging it with several other agencies with similar functions. ? It is also said that the change will not be big, it may just be a brand change like the Science and Technology Committee became the Ministry of Science and Technology... In short, its basically just guessing. Including Ding Gaoheng, he was very tight-lipped this time and did not reveal any relevant information. It just means that the superiors are studying it and guarantee that there will be a solution that satisfies the majority of people. ?This kind of ambiguous rhetoric makes people even more worried. In various enterprises and units under the Science and Technology Commission system, it is inevitable that some people are panicked. ?As the main leader of the Aviation Power Group, Chang Haonan would not be able to stay in Haojing for a long time at this time. Had no choice but to return to the capital temporarily to stabilize people''s hearts. Mr. Chang, in the days before returning to China, we have been in talks with Dassault, especially Dr. Ed Steiners team. ?In Chang Haonan''s office, Liu Yongquan reported and put an opened meeting minutes in front of Chang Haonan: According to my observation, the French may have other ideas about modifying an early warning aircraft based on the Falcon Z. ?Chang Haonan did not express his position immediately. He just lowered his head and looked at the talks between the two parties, and at the same time motioned for Liu Yongquan to continue. ? Many people will make preconceived judgments based on the opinions of others, but Chang Haonan may be used to multi-threaded work, so he has good resistance to this kind of problem. Furthermore, from his operation of directly transferring people from Institute 606 to Haojing to serve as technical backbones, it is not difficult to see that Liu Yongquan is actually one of the next generation successors that the group is focusing on. He also needs to exercise his ability to judge independently. After a brief pause, Liu Yongquan also added: "Although Dassault was very positive on the surface, and even the first two talks were initiated by them, every time I tentatively raised some practical issues, such as the aerodynamic and structural design of Falcon 8Z after installing the antenna, , or if the early warning aircraft project is formed and the rights of both parties in the product are proportioned, they will start to dodge the important and take the light, or in turn test what technical route we are going to take. " "It seems that Dassault is definitely interested in using the Falcon 8Z as a platform to modify special aircraft, but this interest... does not seem to be joint research and development with us... it may be that it wants to complete it independently with Thales. , or looking for other cooperation partners..." So I think if they do that, maybe they could consider putting some obstacles in the way of the Falcon Z project... to give them a slap on the wrist? In fact, before asking Liu Yongquan to test Dassaults willingness, he roughly guessed that this would be the situation After all, the beginning of the 21st century is exactly when the French people are at their highest. You must know that the euro in this timeline did not suffer the same head-on blow as in the previous life. After reaching the lowest point of 1:1.02 against the U.S. dollar in May 1999, the exchange rate has bucked the trend and has been rising. Now it has been stable around 1:1.4 for a long time. ?This has even helped Europe to get out of the shadow of the economic crisis ahead of schedule to a certain extent. Several economies with close ties with the EU, such as China, the CIS, ASEAN, and the GCC, have also successively increased the proportion of the euro in trade. ?Most of Africa still uses various francs, and its financial lifeline is tied to the Bank of France. ?In this context, it is normal for Dassault, as an independent company with certain strength and reputation and one of the business cards of the French aviation industry, not to tie its three key models to the same partner. ?Of course, ideas are ideas. To truly implement it, you still need to have the ability. The analysis Liu Yongquan just made is actually very close to the actual situation. ?Its just that the solution I finally thought of was too simple and crude. But its also understandable. His generation was basically under the technological blockade of the West in the first half of their careers. ?Now that I finally have the opportunity to make a comeback, I inevitably want the other party to try the same thing. Dont talk about him. Even Chang Haonan thinks about it. But its not the time yet. Old Liu, think about it for a moment. ?Chang Haonan raised his head, leaned back on the chair, and replied leisurely: The reason why we were able to open up a new situation in technical cooperation with Europe in the first place was because the FAA and the JAA were competing against each other, and in the end we, the fishermen, benefited. Now, we are like the Europeans, one among us, and one among us. If we follow the Americans tricks at this time, wouldnt we give up our greatest advantage and push away the cooperation partners we have already obtained? Technical blockade is like a nuclear weapon. It is most useful when it is on the launcher. If it is used, it will lose its deterrence..." ?Of course, he only said half of what he said. As someone who has experienced the 2020s, Chang Haonan knows it very well. The ultimate means is not unusable. It can only be used once. So we must wait for the critical moment to deliver a fatal blow. It is impossible to waste it on such trivial things. What''s more, the two sides are still in the same boat... "Mr. Chang, if we don''t respond, will this early warning aircraft project... continue to be followed up?" ?On the other side, Liu Yongquan, who calmed down, also realized that Chang Haonan was right. But considering Ed Steiner''s attitude, he felt that if he didn''t do something, it might be difficult to save the situation. Of course you have to follow up. Chang Haonan closed the meeting minutes on the table: "But just remember this, don''t expend too much energy on it... I estimate that as long as we wait for a while, the French will most likely come back to us. By then, the project should be managed by the Electrical Engineering Technology Co., Ltd. The group takes over, and we are just a middleman..." Getting such a reply made Liu Yongquan a little confused for a while. ?Although based on experience, Mr. Changs judgment is undoubtedly worthy of trust, but he really didnt understand the situation this time. Looking at Liu Yongquan who was full of doubts, Chang Haonan smiled and continued to explain: The French themselves have never conducted research and development of early warning aircraft, so if they dont want to find us, the only potential cooperation partners left are the Kingdom of David and Sweden. "But the former technical route is not suitable for extreme miniaturization. If you want to fly on a business jet, you can only build a conformal array, which means covering the entire side of the aircraft with antennas. This improvement method will destroy the aerodynamics of the aircraft and change the wing root. As for the load-bearing structure, it is not easy for Dassault to understand our wing design and we dare not act rashly in this regard. "As for Sweden... the size of Erieye''s antenna is indeed appropriate, but it is achieved at the cost of reduced performance and complete abandonment of air command functions. Although the Falcon 8Z is twice as large as the Saab 340, it still needs To accommodate the complete early warning and command function, the antenna still needs to be slimmed down. The French have no experience now, so they dont realize the complexity, but after they come into contact with the Swedes, they will have no other illusions... In the end, Chang Haonan dared to use the 35-ton Falcon 8Z as an early warning aircraft platform because the optically controlled phased array antenna is light in weight and small in size, and is inherently suitable for application on small platforms. ?If AESA, which has a traditional technology route, wants to fly on a business jet, it will need some extravagant skills... ?Half of the design of the Falcon Z project comes from China, and Dassault does not have the ability to independently develop innovative technologies. So, I can only look back honestly... (End of this chapter) Chapter 1058 Rolls-Royce tastes sweetness Chapter 1058: Rolls-Royce tastes the sweetness ?Later in the day. Toulouse, France. Compared to the little things discussed by Chang Haonan and Liu Yongquan such as business jets and early warning aircraft, what is about to happen here will have a more profound impact on the global aviation manufacturing industry ? Airbus A380 has completed the basic design and will soon begin production of the first prototype. ?But before that, there is one important thing that needs to be determined. ? So what type of aviation engine will be used for this prototype numbered MSN001, or in other words, all five prototypes MSN001-MSN005? Trent 900 or GP7200? Although, for large passenger aircraft using a wing-mounted engine layout, the engine model will not have a big impact on the aircraft design. But when it comes to specific production, because there are still differences in details such as the engine nacelle, wing mounting lugs, and FADEC systems, the power plan of each aircraft must be decided before the order is confirmed. To ensure continuity of production, the power of the five prototypes and the first batch of production machines will be the same. In other words, for Airbus, this choice will not only affect the subsequent test flight progress of the entire A380 project, but also determine the order of aircraft delivery and the evaluation of the first users. Hence, it must not be taken lightly. ?Of course, such a major matter cannot be discussed by the three parties sitting together in a meeting. In other words, letting the two competitors Rolls-Royce and Engine Alliance sit together is a very abstract idea in itself. After all, neither the Trent 900 nor the GP7200 has started official testing yet. ?Even if the two sides don''t fight, it will definitely turn into a drawing contest in the end. ?That would be meaningless. Therefore, Party A can only send representatives to learn about the situation from the two suppliers before making a final decision. Even so, it is still necessary to consider how credible the commitment given by Party B is. After all, the A380 has already achieved the goal of first flight in 2005 and operation in 2007. ??If the power aspect lags behind, even the gods will not be able to save it. The terrible thing is, judging from the previous situation, the probability of this risk becoming a reality is getting higher and higher GP7200 is a new model that was launched in 2001. ?Although the Engine Alliance has repeatedly promised that the first flight can be achieved before the end of 2004, the credibility is still doubtful. Although the Trent 900 is two years earlier, and the overall design is derived from the mature Trent 800, it seems to be a safer choice. However, in order to compete with the GP7200, which sells quietness, a series of new technologies have been adopted in the turbine structure quite radically. Hope to win more orders with low fuel consumption. ?However, contrary to expectations, the radical design brought higher technical risks. Last year, there were also rumors that the combustion chamber design may be revised to reduce the temperature in front of the turbine. Not only will the construction period be affected, but performance will inevitably be reduced. This is quite critical for the evaluation of the first users. For this reason, Charles Champion, chief operating officer of the A380 project, has been worried for a long time. The two engine suppliers have made him a key breakthrough target. ?For example today, he needs to receive a group of visitors from Rolls-Royce. Nominally, he hopes to visit the assembly workshop in Toulouse, but in fact, Champine knows everything with his toes. This must be a routine public relations operation... Of course, the other party is one of the core suppliers of Airbus after all. As the chief operating officer, he still has to go and receive him even if he bites the bullet. ?However, when Champion, who was full of anger, saw the person coming, he couldn''t help but be stunned for a moment. He knows the person leading the team. And I have been in contact with it many times in the past. Tim Purdy. Deputy director of the Trent 900 technical team. ?However, Champion, who had stayed up for several nights, was still a little confused. After seeing an old acquaintance, his first reaction was Why was he transferred to the public relations department? ?Of course, Bodie''s future and destiny have nothing to do with him. ??However, a sudden change in a core position such as deputy project director is likely to mean huge problems for the entire project. This is completely unacceptable for the A380. So, after Bodi came forward and greeted Champine warmly, he heard the other party leaning into his ear and whispering in a furtive tone: Timmy, has something happened? Why are you not in the Trent 900 R&D team? ?The second round of high-quality rounds directly stunned Bodi who was in high spirits. He even forgot to take back the hand he was holding. After being stunned for a while, he asked in confusion: When was I no longer part of the R&D team? But they... Champien winked and gestured behind the other party. A group of people dressed clearly like a public relations team. Furthermore, technicians who are serious about aviation development will be sick from spending all day in the workshop, and they will not make such insignificant requests as "visiting the final assembly workshop". Fortunately, Bodi had already guessed at this time that the other party probably just misunderstood his purpose. So he immediately explained: I dont want to make too much noise. Most of them are from our R&D team. You know...its a critical stage and needs to be kept secret. Champine, who realized that he had made a big mistake, was a little embarrassed and had no choice but to pat his bright forehead: Okay I havent had much rest these past two days, so Im a little confused ??Then he changed the topic very smoothly: You just said that the majority is your people, that means... And of course the commercial and legal teams. Speaking of this, Bodi couldn''t help but straighten his back: "Actually, this is the main reason why I came to visit today." "Huh?" At this time, Champines remaining sleepiness was finally thrown out of the sky, and he suddenly became energetic: Is it related to the progress of Trent 900? Since Luo Luo has brought a full team of people here, it means that they believe that there is a high probability of achieving a breakthrough at the contract level. Regardless of whether it is really possible or not, since the other party has such confidence, there must have been some major progress. ? Bodi showed a confident smile: Thats right, well talk about it in detail later. Champine made a prompt decision: The conference room on the top floor is still vacant, absolutely reliable... ?However, before he could finish speaking, he was interrupted by Bodi raising his hand: No need. Just follow the normal procedures for receiving a public relations team and take us around the workshop. Obviously, the explanation about low-key just now is not just lip service... ?The group of people soon arrived at the ready assembly workshop. Because the production of the first prototype has just begun and is far from the final assembly stage, the workstations reserved for the A380 here are still somewhat empty. Only some background boards and promotional materials such as banners are left. It should be used for the celebration ceremony until the official final assembly. Mr. Champine ?However, Bodis voice stopped abruptly as soon as he started speaking. ??He noticed one of the boards out of the corner of his eye. ?There are about a dozen national flags painted on it. Of course, this is not surprising for a multi-national project like the A380. The meaning is also easy to understand. It is the country that participated in the core tasks in the development and production process of this model. But the problem is. ?There was a dazzling red color on it... ?? There was a thunder in Bodi''s mind, which almost made him lose his balance and fall to the ground. Mr. Purdy? Champine, who had not heard the following for a long time, turned around with some doubts and saw Bodi staring in a certain direction with his eyes, not knowing what he was thinking. Why is there a Chinese national flag? Bodi asked with some difficulty. For a moment, he even thought that the fact that Trent 900 was looking for China as a second-tier supplier had been leaked. Champine didnt know the twists and turns here, so he just felt a little confused. He frowned and explained: "Since 1998, Airbus''s extreme environment simulation laboratory has been set up in Chengdu, China. They have participated in the anti-icing and lightning protection design of the A380... Of course, this part of the work does not account for much. The Chinese flag is placed here mainly to take care of the market over there...Whats wrong? Nonothing. Bodi shook his head and breathed a long sigh of relief: Back to business. "We at Rolls-Royce have officially confirmed that the first prototype of the Trent 900 will be delivered for test flight before March 2004. We hope that you can cooperate with our production schedule and prepare the air test platform in advance. " In fact, Airbus has an A340-300 with the left wing inboard engine removed, which is specially used for testing new aviation engines and does not require so-called "advance preparation." The reason why Bodi said this is to target competitors. After all, there is only one test platform, which is used for the Trent 900. Then the GP7200 will either have to wait, or it will have to ask Boeing for help. Its always one step at a time, one step at a time. At that time, it will be impossible for Airbus to show favoritism even if it wants to. Second coming... It is also for the program effect. You know, in the past two years, in order to ensure the first flight schedule, Airbus has revealed its devilish nature. ??Both Rolls-Royce and the Engine Alliance have suffered a lot because of the progress. I feel very proud today. ?Furthermore, in order to avoid the suspicion of being too pretentious, Bodi added a special sentence at the end: Actually, the production of parts for this test machine has started at the end of last year and is now about to enter the final assembly stage. However, in order to keep it confidential, the progress has not been disclosed. Sure enough, as soon as he finished speaking, Champine''s whole body shook. 2004March? The latters eyes widened slightly. ?Old companies like Rolls-Royce are very good at boasting about PPT, but it is still impossible to fool around with prototypes. Hence, entering the final assembly, this is a clear time point. ??It is completely different from the previous empty talk. ?However, to be on the safe side, Champine still asked: Why is the progress suddenly so fast? Because we...uh...have obtained a new technology, we dont need to modify the plan anymore and can directly put it into production according to the earliest design. ?Poodys back straightened up even more. ??Although he once thought that it would be a bit embarrassing for the majestic Rolls-Royce to find China OEM for its core products. I was also worried about whether there would be quality hazards in the parts produced by Huaxia. I have also struggled with whether choosing a supplier outside the West will affect the reputation of users... But this moment. It doesnt matter anymore. ??It smells so good! (End of this chapter) Chapter 1059 What does extreme joy bring about sorrow Chapter 1059: What does extreme joy bring about sorrow? Tim Purdy''s current behavior is a bit self-satisfied at best, but a little self-satisfied at worst. ?However, Charles Champion could no longer care about such details. ?As the chief operating officer of the A380 project, he was even more excited than Bodie after hearing that the Trent 900 could be delivered on schedule. After all, the pressures faced by both sides are completely different. As a "new century air cruise" with a take-off weight exceeding the Boeing 747, and even exceeding the An-225 in terms of volume, the A380 not only pins Airbus''s expectations to completely suppress its old rival Boeing in the field of passenger aircraft, but also attracts the attention of public opinion around the world at all times. . In most cases, especially at the beginning of a project, this focus is undoubtedly beneficial. This model once received funding and resource investment beyond commercial rationality. But the cost of investing beyond commercial rationality is that expectations also exceed commercial rationality. According to convention, the technical team will give themselves some room for maneuver when disclosing the development schedule to the outside world. Because of such a large-scale project, even if the gods come, there is no guarantee that there will be no trouble at all. Just like the Trent 900. ??Although Bodi said it would be delivered before March 2004, Champine is almost certain that the other party''s internal timetable is at least a quarter earlier than this, or even more. However, on the A380, publicity needs have overshadowed technical needs. The public relations department bypassed the R&D team and directly disclosed the internal plan schedule. ? And if the media just joins in the fun, it will not cause any serious consequences. The real trouble is that the overwhelming public opinion will eventually affect users who are ready to place orders There are rumors outside that the A380 will be put into operation in 2007. Now you tell me that it will be delivered before 2008. Are you looking down on me? Hence, the supply contract for the initial users was also signed before the end of 2007. In the end, Champien felt like there was a whip behind him lashing his **** almost all the time. As long as he made the slightest mistake, he would have to bear the double pressure from Party As boss and external public opinion. In this current situation, if the Trent 900 can really be delivered on time or ahead of schedule. Let him call Bodie his adopted father. Of course, Airbus and Rolls-Royce are both well-known companies in the industry, and aero engines are off-the-shelf products with special properties. They cannot be traded like black market transactions, where the managers of both parties make a deal at once. Later, the past intention agreement must be upgraded to a formal supply agreement. Especially details such as the delivery deadline and the technical state that the product must reach when delivered cannot be ignored. Otherwise, if something goes wrong in the future, just wait for the dispute. Fortunately, Bodi has a legal team with him, and they are obviously here to achieve results as soon as possible... Charlie, in order to improve efficiency, I suggest that you also organize a technical team as soon as possible to go to the Rainsway factory to understand the situation while the negotiations are ongoing. At the end of the meeting, Bodie suddenly suggested: In this way, even if there are any problems or differences during the meeting, they can be resolved through communication in the shortest possible time ?The British can come up with such a "deviant" method, which shows that Rolls-Royce is quite well prepared and is bound to win the power of the A380''s first flight. ?However, in the face of Party B who was suddenly so proactive that he began to push for updates in the opposite direction, Champine felt a little uncomfortable: "Uh...Timmy, you came too suddenly this time. Today...or in the next few days, we definitely won''t be able to start negotiations. We also need time to assess the situation and organize manpower..." ?He replied with some embarrassment: "In short...I will hand over the information and reports you brought to the group level as soon as possible, and by the end of next week at the latest, negotiations can definitely begin..." ?Pody had already anticipated the efficiency of the French before coming to Airbus, so this answer was not surprising. In fact, even the hotel room was booked directly for two weeks. ?However, he still deliberately put on an expression of "This is very difficult for me". After hesitating for a long time, he reluctantly nodded: Okay, but it has to be quick... The ground testing of the Trent 900 is in the final stages and we dont want to delay the air testing... Performing in front of Champine put Bodie in a good mood. After leaving Airbus, he quickly organized his people and started preparing for negotiations to start next week. It is said to be preparation, but actually there is nothing special that needs to be done. ? In his view, and even in the view of the entire Rolls-Royce company, the Trent 900 has now made up for the last shortcoming in performance. Compared with its competitors, it only has high speed, that is, the noise control during takeoff and climb is slightly worse. But this disadvantage is not worth mentioning in the face of the huge lead in fuel economy. In addition, the basic design of the GP7200 is derived from the two engines of GE90 and PW4090. At best, this hybrid design can combine the advantages of both models, but on the other hand, it will also bring many technical problems. risk. In short, its about performance, fame and risk. ??The advantage is huge, I dont even know how to lose! ?However, what happened next made Bodie quickly understand what it means to have extreme joy and sorrow... ??On the first weekend after the Rollo-Royce team arrived in France, Bodi, who had nothing to do, took a few of his men out for a round of fun as usual. When he returned to his residence, it was almost midnight. But the few team members who stayed behind did not fall asleep, but gathered at the door of Bodi''s room. Apparently waiting for his return. "director." ?The team assistant came forward: Two hours ago, news came from the headquarters, saying that you should return to China as soon as possible, but we couldnt contact you just now, so we had to wait here. ?This sentence directly made Bodie, who was already seven points drunk, tremble and wake up instantly: Shall I...or shall we? He shook his head, which was still a little dizzy, and immediately confirmed. Director Panos Watson specifically emphasized that you will return to China alone, and our remaining members will continue to negotiate with Airbus in France, but... ?The other party paused for a moment, then further lowered his voice: Ask us to delay as much time as possible and not to reach a clear agreement with Airbus for the time being. ??If Bodi just woke up just now, now he is breaking out in a cold sweat. As the deputy project director, it was actually nothing unusual for the headquarters to ask him to go back alone. After all, many major decisions could not be made without his presence. But at the same time, the negotiating team is asked to delay... ?Then Im afraid theres only one possibility left Trent 900, something went wrong. ??Moreover, its not a small problem. Because as Champine just guessed, the delivery time in March 2004 actually left a three-month margin. ?The sudden change in negotiation strategy shows that three months is not enough... ?Poody felt a little headache. Think about it, I just boasted so much in front of Champine two days ago, only to have my hips stretch out. This wave is obviously bound to make a fool of itself. But compared to the progress of the Trent 900 and even the future and destiny of this model, personal dignity seems to be insignificant. He took a deep breath and forced himself to calm down: When is the nearest flight ticket? I checked, its 7 oclock tomorrow morning. The assistant replied: However, given the weather in London, it might be faster to take the Eurostar. ? Eurostar is a cross-sea railway train between London and Paris, with about 6-9 departures every day. In short-distance travel like Britain and France, it is often more convenient than flying. This is especially true in harsh climate conditions. Its just that the environment is a bit worse. "Then take the train... I hope they can be more punctual than the British and German railways..." ?Pody made a prompt decision: Were going to Paris now. ? Airbuss factory is located in Toulouse, southwest France, about 700 kilometers away from Paris. After saying that, he opened the door and started to pack his things while resisting the slight headache caused by the alcohol. Director Bodi, if you havent come back after the negotiations start next week and Airbus asks again The assistant also walked in. ??He didn''t know exactly what happened at the headquarters, but after Bodi left, the entire team lost the person who could make decisions, and it was definitely impossible to negotiate normally. ??If something really goes wrong, I, as an assistant, will probably be thrown out and take the blame in the end. ?However, at this moment, Bodi himself was so confused that he could not care about appeasing others, so he immediately said what he was thinking: Just say that I am suddenly unwell and unable to lead the negotiations... The headquarters may send another person to take charge, but if not, you will be responsible for a period of time..." (End of this chapter) Chapter 1060 Trent 900, something big happened Chapter 1060: Trent 900, something big happened ?Pody hurriedly hurriedly and slowly arrived at the No. 58 test bench in Derbyshire on the afternoon of the next day. The fourth and final ground demonstrator of the Trent 900 is undergoing the last few simulation tests here. When he first walked into the testing center, he didn''t even notice anything unusual at first glance. Unit No. 04 is fixed on the hanger of the high-altitude platform as usual. The huge titanium alloy fan faces the door and is rotating at an extremely slow speed. It seems that he has just finished a test and has not completely stopped. ??If he hadn''t found that almost all the leaders of the technical team were around the test bench, Bodi would have even thought that this was an ordinary afternoon in the test center. ?For a moment, Bodie even wondered if he was worrying too much because he was drunk last night. Perhaps... maybe it''s just a normal technical meeting? He still held some luck in his heart. ?However, after walking a few steps to the side, the scene in front of him shocked Bodi and stopped him instantly - Compared to the front which looked intact, the rear part of Unit 04 was almost completely destroyed. ??The entire engine pod was torn apart by huge external forces. The space between the fan and the medium-pressure compressor was filled with carbides left after high-temperature combustion, and the structure was almost indistinguishable. ??The combustion chamber and turbine parts seem to be complete, but if you look closely, you will find that there is a huge gap in the upper part of the casing corresponding to the medium-pressure turbine and low-pressure turbine structures. The internal structure is probably a mess... Not only the engine itself, but also the test bench suffered huge damage. Fortunately, the hanger structure was strong enough to prevent the engine from falling directly to the ground from a height of nearly ten meters, causing secondary damage. Otherwise, the problem may become even more unmanageable... Timmywere in big trouble. ? Panos Watson, the R&D director, was standing not far from the test bench wearing a safety helmet, with a terrifyingly gloomy face. ?At the same time, test engineer Georgia Wilson also came to Bodie with a record sheet and began to report the situation in a heavy tone: Yesterday afternoon, Unit 04 was undergoing a low-temperature working test of -50C. Just when the whole process was about to end, the engine oil temperature sensor suddenly alarmed. "The staff immediately prepared to perform shutdown operations in accordance with the operating regulations, but the oil temperature and engine speed were not controlled as expected, but continued to rise... Less than two seconds later, the turbine part exploded, and the medium-pressure and low-pressure turbine blades It broke and penetrated the casing and engine nacelle under the action of extremely high centrifugal force. "One of the pieces hit the command transmission equipment of the test bench by coincidence, causing the subsequent control and sensor signals to completely fail... Fortunately, the valve in the fuel pipeline has an emergency cut-off design, which automatically cuts off the fuel supply after losing the control signal. It did not cause complete combustion and damage to the entire engine..." ??Although Bodi had made various psychological preparations on the way back, the situation in front of him was still much more serious than he imagined. ?Especially when Wilson said the last part, Bodie was so frightened that he almost lost his balance and fell to the ground In order to prevent the accident from getting completely out of control, the test workshop installed a high-expansion foam fire extinguishing system similar to many hangars. ??If the fire expands enough to activate this device, many traces of the accident will never be restored. ?Of course, the current situation is only slightly better than the worst. If the problem cannot be identified in a short time, the development schedule of the Trent 900 may have to be postponed indefinitely. And even if we find out... It may also take a lot of time to solve the problem. For a time, there was silence in the huge testing workshop. Sothe problem is with the intermediate pressure turbine and the low pressure turbine? ?Pody took over the report from Wilson, but because of the loss of data in the second half, it was difficult to quickly analyze any particularly valuable information from it. ?However, he immediately suspected the low-pressure turbine part produced by Huaxia OEM. ??Of course there is some kind of stereotype at play here, but to say it is completely prejudice... Not really The application of titanium alloys in the hot end of aeroengines is the first time. Even the low-pressure turbine with the lowest operating temperature has a much harsher environment than fans and casings where titanium alloys are widely used. In this case, new thermal barrier coating technology and film cooling technology are also applied to the turbine part. In fact, when it was decided to hand over the production of high-pressure and low-pressure turbines to China a year ago, someone in the technical team suggested that for the sake of safety, the base material of the low-pressure turbine should also be changed to a traditional nickel-based alloy. But in the end, after voting, the titanium alloy plan was retained with a slight advantage. The concentration of various risks together is indeed the place where problems are most likely to occur. However, after Wilson thought for a moment, he still shook his head: ???"It''s hard to say." What ultimately caused huge damage to the engine was indeed the mid- and low-pressure turbine blades that shattered and flew out, but if we delve into the source of the accident... we still cant draw a conclusion. "Our test engineers have found more than 4,000 pieces of debris around the test bench, nearly 100 of which are embedded in the roof of the test center. They have not been collected yet. I am afraid we will have to wait until the engine debris and the analysis of these debris Only when it is over can the true cause of the accident be given. Bodi subconsciously raised his head and noticed that there were several ladders set up around the test platform. Several staff are collecting the debris left by the accident at a height of more than ten meters... ifier He took a long breath and rubbed his eyes that were swollen from fatigue and stress: Isnt there a more efficient way? The accident during the test is not a plane crash, and the procedures are generally not very strict, as long as the problem can be found. But correspondingly, the number of manpower responsible for investigation will be much smaller. I cant guarantee that. ?Wilson shrugged: "If you''re lucky, the first part you pick up may be the problem, but if you''re not lucky...even if you read them all, you may not be able to draw an intuitive conclusion." The atmosphere was once again as quiet as death. Until a female voice came from somewhere: "I suddenly remembered that when the Chinese people sent those samples over a few months ago, they specifically mentioned that the medium-pressure and low-pressure turbines lacked locking structures. After the turbine shaft breaks, it will easily cause the turbine rotor to over-rotate... If we are in Can such an accident be avoided by adding this design to the turbine shaft? The speaker was Lea Lapworth. As the director of computing science, although she was also involved in the design of the Trent 900, she was not a member of the R&D team. Even in terms of level, she is on the same level as Panos Watson. So, and care about the other person''s face like other people. As soon as he finished speaking, several sounds of inhalation came to mind one after another. Immediately afterwards, almost everyone turned their attention to Director Watson. The latter also looked embarrassed. At that time, it was he who made the decision without thinking and vetoed the opinions put forward by the Chinese people. ? And we also vowed that our Trent 900 is advanced in design and well-made, and there will be no problem of turbine shaft breakage. result The almost-wrecked engine next to it was a silent slap in the face. Ahem ????? Realizing that something was wrong with the atmosphere, Bodi quickly smoothed things over: Dr. Lapworths statement is not appropriate either The function of the anti-overrotation design is to prevent further losses after an accident occurs. The prerequisite for it to work is that the turbine shaft is broken... Even if the Trent 900 is installed, the accident itself cannot be avoided. As Dr. Wilson just said, the starting point of the accident may not be the turbine part, so in the final analysis, we still have to find the source of the safety hazard..." Actually, everyone knows that Bodies words are a bit unreasonable. After all, if the turbine blades did not fly out and penetrate the casing and nacelle, then the entire engine would have remained largely intact, and there would be no possibility of thousands of fragments, and the sensor signal would be even less likely to be cut off midway. Accident investigation will obviously become much easier. ?Of course, at this point, it is already too late to say these things in hindsight. ?Anti-overrotation design will definitely be added to the Trent 900 in the future, but the premise is that the entire project can continue to operate... So, Lapworth just curled his lips and did not continue to delve deeper. "one way or another" ?Taking this opportunity, Watson quickly changed the topic: Contact China first, and then order a batch of samples of low-pressure turbine blades. We may need to perform an accident restoration... (End of this chapter) Chapter 1061 The British must be allowed to tell the truth! Chapter 1061 The British must be allowed to tell the truth! ?Engine testing is still a purely corporate activity, and the explosion of the Trent 900 has not turned into a public disaster. Therefore, Rolls-Royce had no obligation to announce the accident itself or the investigation results. Instead, it blocked the news from the outside world as soon as possible and interpreted the loud noise made during the explosion as the pulse detonation engine was being tested. Only the core personnel involved in model development and testing can understand the specific situation. It should be said that the British are quite efficient in this kind of thing. ? Even Bodi didnt know what happened before returning to China. But after all, there is no airtight wall in the world. ?Furthermore, the act of blocking news itself will reveal a lot of information. ? Within a few days, good news media had already appeared around Derby County, hoping to glean some useful news. ??Some tabloids that are not afraid of big things have begun to publish articles suggesting that some projects of Rolls-Royce have encountered "major setbacks." Fortunately, the No. 58 test bench is not a separate device, but is located in the same park as the earlier No. 57 test bench. The two sides combined can accommodate up to 10 engines, and four of them can be tested at the same time. The pulse detonation engine previously claimed by Rolls-Royce is indeed true. Therefore, the outside world has not yet found clear evidence and can only stay at the stage of speculation and suspicion. ?Only Airbus does feel something is wrong - From the beginning of the second week of negotiations, the leader Bodi disappeared and was replaced by a so-called "powerful negotiator" whom he had never seen before. However, as long as the topic between the two parties involves key points related to the contract details, the other party will either ignore the other party, or make some excessive demands that are obviously looking for trouble. So that several days passed without any progress. Some people have begun to speculate whether something happened to the Trent 900 as the outside world said. But first of all, they have placed too many expectations on Luo Luo, and subjectively they are not willing to accept such speculation. Secondly, this negotiation was started at Luo Luo''s initiative, or even at his urging. Indicates that the other party should have sufficient confidence. ? Could it be that there was no warning at all, that an accident suddenly happened in the past few days? No way? ? In comparison, it is obviously a more reasonable analysis for competitors to manipulate the media to maliciously slander. ?This made Airbus a little undecided for a while. In short, in the first two or three days after the explosion, everything seemed calm. But all those familiar with the matter knew that this calm was only temporary. If they can find and solve the problem in a short time, everyone will be happy. ?Even if this matter is revealed in the future, it can be made a good story. But if it takes too long... ?The momentum created in the front turned into a boomerang and pierced his head. Therefore, Panos Watson ordered a new batch of turbine blades as soon as the accident occurred. It is said to be an order, but in fact there is no need to go through the negotiation process again. Since Rolls-Royce''s order volume has been quite stable in the past few months, the two parties have also modified their cooperation model in order to improve efficiency. Rolls-Royce can increase the order quantity at any time according to its own needs, while China Aerospace Power Group will provide products based on the previously signed contract, and the two parties will settle the payment every six months or one year. Hence, simply contact the other party and submit a new order. According to past experiences, it is usually available within 7-10 days. When the time comes to catch up quickly, the cycle can even be shortened to five days. In Watsons view, this is an efficiency that can only be achieved by sending spot goods. It is very likely that the other party has prepared a large quantity of goods in advance, and as long as they place an order, they will be shipped immediately. This time should be no exception. In fact, his guess was quite accurate. ?After the completion of Haofa Groups laser processing production line, the output of turbine blades has exceeded Rolls-Royces order quantity. So, unless there is a large order coming in at once, it can be shipped directly from the warehouse. ?However, the situation this time is different... On the other side, China. ?Shortly after Tim Purdy contacted China through the Ciro Group. Chang Haonan, who was busy sorting out data in the Torch Laboratory, received a call. He frowned and prepared to transfer the call to Liu Chenchen Since returning to the capital, he has begun to live a solitary life. On the one hand, Turbofan 20 has basically met the conditions for project approval, and the research and development of QC300 has also entered a critical stage, which requires him to maintain attention at the technical level. On the other hand, we are also waiting for the final plan for the reorganization of the Commission of Science, Technology and Industry for National Defense. There are rumors that Chang Haonan may directly assume important positions in the new department after the reorganization. But at Chang Haonan''s current age, even from the perspective of handling special cases, it is unlikely to go further. After all, state-owned enterprises and government agencies are both within the system. But if you really want to compare it, the difference is quite big. It is not difficult to guess that a lot of eyes are focused on him. It is better to keep a low profile. Hence, most calls, unless they are absolutely necessary, are handled by three secretaries. ?However, just when Chang Haonan was about to press the transfer button, he caught a glimpse of the extension number on the caller ID. From Haojing. The calls from there are basically purely technical or project issues. So, after hesitating for a moment, he directly picked up the receiver. ?A familiar voice soon came from the other side: Mr. Chang, I am Zhang Zhenhua. Of course Chang Haonan also heard the other partys identity: I know, whats the matter? Generally speaking, people in the Aerospace Power Group do not contact the laboratory directly, and they all relay information through Zhang Liangping. Zhang Zhenhua also got straight to the point: We just received an order request from Ciro Group not long ago, but this time the order interval has been shortened by half compared with before, and... At this point, he paused for a moment, but quickly continued: And Ciro Group requested that the delivery be delivered to them this time, rather than directly to the UK. We are discussing whether to agree to this request from Ciro ?Chang Haonan also immediately heard something was wrong. Siro Group actually only plays a white glove role in the cooperation between the two parties. In other words, the turbine blades produced in China are washed and turned into "self-produced" by Rolls-Royce. So, except for the first few trials, the delivery process does not require this middleman at all. The aviation power group directly interfaces with Huaxia Customs. Due to the special status of the former, this method can also shorten the customs declaration process as much as possible. The magical delivery cycle of 7-10 days is partly due to this. ?Now that the Ciro side suddenly requested to stop the goods, although it is not illegal, it is obviously not normal either. Whats their order quantity? ?Chang Haonan did not give an answer immediately, but asked instead. There was a brief silence on the other end of the phone, and then there was the sound of turning pages of paper. Soon, Zhang Zhenhua reported a very small number. Not even enough for an engine. ?Chang Haonan quickly made a judgment. At the same time, a reasonable guess was also formed: The order quantity is small, and it has to be handed over directly to Ciro Group. Maybe it means that they are not going to go through the customs declaration process, but are going to send it back by carrying it with them? For small quantities of items that cannot be smuggled, this is definitely faster than all logistics methods. If you get spot goods, even two days is enough. Zhang Zhenhua also suddenly realized: So, does it mean that the British side is so urgent this time that they dont even want to wait a week? Thats right Chang Haonan certainly didnt know about the twists and turns between Airbus and Rolls-Royce at this time, but as a reborn person, he knew about the design of the Trent 900 from the beginning...or the quality defects. ??In the previous Qantas QF32, the turbine blades penetrated the casing and then destroyed the aircraft itself. It has almost become a typical example of engine non-containment accidents. Hence, it is reasonable to speculate that in this timeline, they may have encountered a similar situation during the testing process. The urgent purchase of a small batch of blades is probably for the purpose of restoring the accident situation. Lao Zhang. ?Thinking of this, Chang Haonan felt sleepy instantly: After all, Ciro Group is Party A on paper. As long as it does not conflict with the content of the contract, we have no reason to reject them. "But" ?Zhang Zhenhua obviously wanted to refute something, but was directly interrupted by Chang Haonan: Listen to me. The latters voice was obviously excited: "They are playing with the contract, so we can also play with the contract. Just tell the two British people from the Ciro Group that there happens to be no ready goods to ship this time. We need to wait for the new batch of products to come off the assembly line and wait as long as possible until the contract allows. Maximum delivery time! Hmm...ah? ?Zhang Zhenhua called me just to seek safety. The result was an unexpected instruction. The things here are more complicated... Its not easy to explain at the moment. Anyway, Luo Luo is very anxious this time, and its obvious that something big is being hidden from us. We have to find a way to get the British to tell the truth! (End of this chapter) Chapter 1062 Request to participate in the accident i Chapter 1062 requires participation in the accident investigation! ?Chang Haonan''s operation itself is actually unintentional. But the effect is outstanding. ?Zhang Zhenhuas feedback about no stock was quickly sent back to the UK through Ciro Company. ?The moment he heard the report, Panos Watson''s blood pressure immediately spiked. ??If he hadnt quickly held onto the table next to him, I might have performed a show with his hands spread out on the spot and lost his breath. After a while, Watson regained his vision before slowly sitting back on the chair next to him: Out of stock? Tim Purdy, who was standing opposite, could not help but breathed a sigh of relief when he saw that his supervisor could still speak normally: Thats right. He nodded and continued: "Huaxia said that their process has minimum production quantity requirements for each batch, so the previous orders were actually based on the batch of products that went offline in January this year, and they were all used up after the last shipment. " "As for the new batch of products... the production cycle is arranged according to our past ordering rhythm. Since this time the order is in advance, there is no preparation at all... However, the other party also assured us that the delivery will be completed within the period stipulated in the contract. Absolutely There will be no breach of contract Watson was so angry that he couldn''t say anything. He trembled for a long time before he punched the table angrily: The period specified in the contract? The delivery period stipulated in the contract is two months! If we wait until two months later, the Trent 900 will be completely destroyed! However, anger is anger. Besides venting, there really seems to be nothing that can be done. The Chinese peoples explanation is reasonable from both a technical and commercial perspective, and its not even a situation where you know the other party is doing something wrong but you are helpless due to procedural issues. But there is not even a point of refutation to be found. But now there is really no way to wait another two months ? It will certainly take a long time to find out the root cause of the accident, but at least it must be 100% sure that it has nothing to do with the most critical core part of the aircraft before negotiations with Airbus can continue. Otherwise, even if the French were brave, Watson himself would not dare to install the Trent 900 casually. With no other choice, he had no choice but to try a trick: If we add extra money, can China meet the construction deadline and deliver it ahead of schedule? As a result, Bodi directly gave a negative answer: "We asked, and the other party said that the production line is currently operating at full capacity, producing other products that were ordered earlier. Unless there is a sufficient and reasonable reason, they will not accept additional money or modify the production arrangement, which will affect them. business reputation. ? Seeing that the other party had shown their spirit of contract and business reputation, Watson could not say anything else. You cant just say that as long as you pay sufficient liquidated damages, the spirit of the contract is nonsense, right? For a while, there was a bit of silence in the office. After a while, Bodie, who was sure that Watson was completely lost, tentatively spoke: I think the best way now is to inform the Chinese side of the accident involving the Trent 900 ?Unsurprisingly, Watson interrupted him halfway through his words: No, absolutely not! If this kind of news spreads, it will have a devastating impact on the confidence of partners and the companys stock price! But if it continues like this, the whole world will know about it, right? ??Pody became calmer at this time and analyzed to Watson: Actually, the Chinese people are now responsible for the production of the core components of the Trent 900, and the profits are quite generous. On the contrary, among the various forces, the interests are the most consistent with ours. "If the Trent 900 continues to be delayed...or even canceled because the accident investigation results are not available, the Chinese people will not only lose orders, but also due to rumors from the outside world, someone will definitely attribute the cause of the accident to the turbine blades they produced. It has a greater impact on their reputation. So, there is no reason why they would take the initiative to leak this news, and they would even be more concerned about keeping it secret than we are The latter''s eyes gradually changed from determination to hesitation, and he had obviously begun to think about the feasibility of this proposal. In fact, from a rational perspective, Watson also knows that he really has no second option. ??It''s just that he sternly rejected the Chinese people''s reminder before. Now if he reports the accident situation to the other party, it will inevitably be regarded as amusement. ?But then again, it is better to be treated as amusement by partners than to be treated as amusement by competitors in the future. Bodi, who is proficient in observing words and expressions, also continued at this time: By the way, supervisor, last time you asked me to reply to the letter from Huaxia, I actually forgot to send it out Actually, Bodie felt that the letter was too violent, so he took it upon himself to stop it. ?However, in front of the leader, you must not directly admit that you deliberately failed to implement it. So it must be forgotten. And his words undoubtedly became the last stone that broke the camel''s back...the last big stone. Watson''s complexion suddenly turned from gloomy to clear. ?Of course, for the sake of reserve, I still pretended to hesitate for a while before finally nodding: Forget itjust do as you say. "Go to Huaxia in person and briefly inform the other party of the situation. You must emphasize that the new turbine blades are the core of our accident recovery and clarifying the truth. They must be delivered as quickly as possible, otherwise once the incident escalates, for It will be a huge loss for both of us..." The future of the Trent 900 is related to his own future and destiny, so Bodi naturally moves very quickly. ??Furthermore, he had already held a position at Xiro Company before, so the Chinese visa had a very long term and he did not need to reapply. So the next day, he arrived in Haojing and explained the accident of Trent 900 to Zhang Zhenhua. Just a little bit of beautification. ?For example, they have previously approved the proposal put forward by China, and this time they want to test the possible consequences of turbine overspeed. The consequences turned out to be more serious than imagined, which led to the accident. These contents were quickly fed back to the capital in their entirety. You must know that the Trent 900 turbine blades are a supply chain product that is of great concern at the group level. Now that an accident has occurred, even if there is no evidence that the cause of the accident is related to Huaxia products, it is a major event that cannot be ignored. At least Chang Haonan cannot make the decision alone. So that night, at his suggestion, the Aerospace Power Group held a meeting overnight to discuss strategies to deal with the matter. Of course, it is said to be a discussion, but everyone can guess that Chang Haonan probably already has a draft, but it just needs to be decided at the group level. Therefore, after a brief opening remarks, Zhu Linyu directly pointed to Chang Haonan: "Comrade Haonan, I specifically asked Haofa Group, and they said that there are actually enough remaining samples in the warehouse, so... it should be that you specifically asked them to delay the delivery time?" "Yes." Chang Haonans answer was straightforward: I think this is an excellent opportunity. If done properly, we will have the opportunity to participate more deeply in international aviation industry cooperation! ?Originally, this late-night meeting even seemed a bit boring. ?Especially for several non-technical leaders, they are here just to make up for the vote, which can even make them a little sleepy. But as soon as his words came to light, everyone suddenly woke up. In-depth participation in the international aviation industry. It can be said that the most important node on Chang Haonans career was the series of aviation industry cooperation agreements signed with the European Union in 1997. So, no one will think this is an exaggeration. ?They all adopted the attitude of "Speak quickly, I''m listening". I would like to propose to Rolls-Royce that we participate in the investigation of this Trent 900 accident! ?Chang Haonan said firmly. On the one hand, the Turbofan 20 project is about to be established. Although it is impossible for Luoluo to let outsiders have access to the core secrets, an investigation team can gain some experience by going there. "On the other hand, and more importantly, the British cannot hide this accident forever. At least they must disclose the true situation after all the dust has settled. By then, the whole world will realize that we, China, are in Trent The huge role played by 900 can also further improve our image in the international aviation industry! ?This operation was completely beyond everyone''s expectations, and it also caused a period of confusion. As a core supplier, the requirement to participate in the accident investigation is quite reasonable. The results described by Chang Haonan are indeed great. ??If Trent 900 now publicly advertises that its core components are manufactured by China, then many interested users will probably choose the other company. If you wait until the Trent 900 is recognized by users and then tell them that it uses core components produced by Huaxia, the effect will be completely different. But the problem is But Comrade Haonan, what you just said is based on the premise that the cause of the accident will be found out in a very short time, right? ?Lin Zuoming said doubtfully: If this matter drags on and there is no result until it is disclosed by the media, wont our image as a core supplier of turbine parts become even worse? This is true. Unexpectedly, Chang Haonan nodded without thinking: It is impossible to quickly improve our countrys industrial status without taking risks...and even if we do not participate in it, the consequences that Mr. Lin said will not be alleviated much. "also" ?He took a deep breath and sat up slightly: I have seen some of the design plans of the Trent 900, and I am at least 80% sure that the root cause of the accident can be found! (End of this chapter) Chapter 1063 It will be ready in seven days Chapter 1063: It will be ready in seven days In fact, when Chang Haonan finished the first half of the sentence, everyone present was basically convinced. After all, those who were able to achieve the leadership position of the Aerospace Power Group in the early 21st century must have experienced various cooperation projects in the so-called "honeymoon period" in the 1980s, except for a few special circumstances. So we all know a little bit about the nature of Western countries. ??If the cause of the accident cannot be found out as soon as possible, even if Rolls-Royce does not take the initiative to add fuel to the fire, public opinion will eventually put the blame on China. And the reason is not easy to refute As a model derived from a mature product, the Trent 900 has been uneventful for more than three years since the project was launched in 1999. As a result, less than half a year after Huaxia participated, it suddenly exploded without warning. Taiwan, and the explosion happened to be the turbine part you were responsible for producing. You say it has nothing to do with you, who would believe it? Whats more, as a British company, there is no guarantee that Luoluo will not become a troublemaker and abdicate its own responsibilities. So, the only way to prove one''s innocence is to join the investigation as Chang Haonan said. This way you can at least take some initiative. But before everyone could express their stance, the second half of his sentence was blocked by everyone... Especially Zhu Linyu. He adjusted his sitting posture almost subconsciously, leaning his upper body slightly forward in the direction of Chang Haonan: 80% sure? In fact, in most cases, the expression "X is sure" is a casual reference. As long as it is not 100%, it cannot be taken as true. ?However, Chang Haonan had a glorious history of identifying M88 problems through the air before, so he really let Zhu Linyu ignore all the above problems: Can you elaborate on it? "Um" In fact, Chang Haonan himself was quite convinced, and it was only out of humility that he did not say anything. But the basis of his judgment is, after all, based on experience from previous lives. ?Now I suddenly have to explain it, and I really have to organize some language. After thinking for a few seconds, Chang Haonan continued: "Actually, it''s nothing special. Mr. Lin, who is in charge of business, should know that as early as the end of last year, I asked Haofa Group to remind Rolls-Royce that the Trent 900''s turbine has design flaws. After the turbine shaft breaks, it is prone to sudden loss. overload." He said and tapped the meeting report on the table: "Although Rolls-Royce''s description of this accident is somewhat ambiguous, considering that the other party requested us to provide low-pressure turbine blades as soon as possible for accident recovery, it can be determined that this is the problem." "But as I just said, the prerequisite for causing over-rotation and causing the turbine blades to be thrown out is the fracture of the turbine shaft, and such an outrageous problem of broken shaft is most likely caused by external forces on a relatively mature model like the Trent 900. Combined with the abnormal temperature signal finally returned by the sensor, the inspection scope can be directly reduced to the accessory system outside the receiver, or to be more precise, the oil pipeline..." Actually, Chang Haonan can be more precise. The root cause of the QF32 accident in the previous life was that a short lubricating oil pipe installed on the medium and high pressure turbine bearing casing was not processed properly. Under harsh external conditions and frequent driving and parking, this short pipe eventually broke, and the leaking oil caused a fire, which eventually caused the turbine shaft to lose strength and break. Afterwards, Rolls-Royce inspected another 53 Trent 900 engines and found that the short oil pipes of 11 of them did not meet the requirements like the one that caused the accident. The processing and inspection records of the other 42 engines could not be found. In other words, this problem is not an isolated case, it was just caught up by the unlucky Qantas. At present, in this timeline, except that the supplier of high and low pressure turbines has been changed to Huaxia, other parts have not changed. It is also normal to be induced in advance during the test. To a certain extent, it can even be said to be a good thing - It is better to explode on the test bench than to explode in the sky. ?Of course, he can only recall these contents in his mind. Delineating a scope of investigation can be regarded as reasoning. But directly pointing out which part number the problem lies in, it would be a bit of a fool''s errand. Even now, the effect is already quite obvious. ? Lin Zuoming, who had been a little hesitant just now, made a 180 turn and immediately expressed his agreement. ?Even, he was asked to personally serve as the leader of the investigation team. But in the end, Zhu Linyu rejected it. First of all, we are currently in the critical stage of the reorganization of the Science and Technology Committee. As the de facto second-in-command of the Aerospace Power Group and the most likely successor to the first-in-command, it is really not suitable for him to go abroad casually. Second coming... ?Although Lin Zuoming is in charge of technical work, he only knows a little more than several other deputy general managers who are completely non-technical. Essentially, I have not been responsible for specific research and development work in more than ten or twenty years. If you really want to lead an investigation team, it will still be a layman commanding an expert. Of course, this second reason is put more euphemistically. But it still filled the conference room with a happy atmosphere... Finally, it was Chang Haonan who brought the matter to an end: Mr. Lin, in fact, only one person can be the leader of this investigation team. Who? ???Lin Zuoming was obviously still regretting that he had lost an opportunity to show off. Ren Bingda, the deputy general manager of Haofa Group, is also the person in charge of the Chinese side of Xiro Group. Chang Haonan replied: "The high and low pressure turbines of the Trent 900 are officially produced by the Silo Group. Haofa only accepts subcontracting and is responsible for the OEM. So in any case, Rolls-Royce will not agree to the fact that we people are responsible for the production." Participate in the investigation. Only Comrade Ren Bingda, by virtue of his position in the Ciro Group, is not so sensitive to the British, so he will have a certain amount of room for maneuver..." After a whole night of discussion and planning, the group headquarters finally sent a rough action plan and requirements to Haofa Group before going to work the next day. ?Zhang Zhenhua and Ren Bingda also conveyed Chang Haonan''s request to Tim Purdy in its entirety. The latters initial reaction was probably almost the same as Chang Haonanhes. This is impossible! Bodi showed an expression as if he had eaten a fly: At the contractual level, there is no direct relationship between your group and Rolls-Royce. If a Chinese face appears in the accident investigation team, we will not be able to explain it to the board of directors. ??Although it was he who suggested to Panos Watson that he could disclose the general circumstances of the accident to China in order to urge the latter to deliver the next batch of turbine blades as soon as possible. However, the proposal definitely does not include involving the other party in the investigation. But Mr. Purdy. ??Ren Bingda had a brilliant idea in his hand, so he was naturally unfazed by it. He just smiled and pointed out the loopholes in the opponent''s logic: As you said yesterday, if the investigation does not produce results for a long time, then our participation in the production of Trent 900 as an OEM will be made public sooner or later, right? Although this may indeed cause our reputation to be damaged, if we really want to say it, Im afraid its your group...or Mr. Bodi, your personal losses will be more serious, right? ??Podi immediately froze on the spot. The previous sentence was exactly the reason he gave yesterday when he persuaded Zhang Zhenhua to jump in line to arrange production. As a result, after one night, it turned into a boomerang stuck in my back. ?Furthermore, what Ren Bingda said was exactly what he was most worried about. Involving subcontracting at various levels in the production process can be a big or small matter. If everything goes well, of course everyone is happy. ??But if it really comes down to the top, he, the deputy director, is undoubtedly the most likely position to be pulled out of the job. But then again. ??If a Chinese person participates in the investigation, even if the results are found, he is still likely to take the blame... ??Just as heaven and man were fighting in Bodi''s mind, Ren Bingda calmly turned the notebook in front of him to the next page: "Actually, Mr. Bodi, the size of our delegation does not need to be very large. It only needs three to five people. Moreover, the members are headed by me, and they are all staff of the Ciro Group..." The meaning of this sentence is obvious. ??It means that there will definitely be no procedural loopholes, eliminating Bodis worries about being settled. ?However, the latters suspicions are still not so easily cleared away: Three to five people? As far as an accident investigation team is concerned, even with limited participation, this scale is really too small. Uh...thats right. In fact, Ren Bingda was also a little confused about this number, but Mr. Chang emphasized repeatedly in the morning that scale is not important. Success is considered successful if someone passes it, so he quickly nodded firmly and explained: "In fact, we also considered that the accident involved a product we produced. We must personally rule out the possibility of defects in the turbine blades before we can be considered responsible for the product for life. That''s why our superiors asked us to be a witness, so it doesn''t take too long. On a large scale, it will not interfere with your normal investigation work..." And only in this way do we have sufficient reason to suspend the current production tasks..." Verbally, you can naturally say a lot. ??Anyway, as long as we can successfully intervene in the investigation, Luo Luo will not have the final say on what happens next. What''s more, Ren Bingda''s promise was only not to "interfere" with the investigation. I didnt say it wouldnt affect ?I will give you the investigation results directly, so it wont be considered an interference, right? In short, after some verbal attacks, Bodi, who had already relaxed his attitude, finally completely declined and promised to report China''s requirements and wait for the final decision of the project manager, but there is no guarantee that it will be approved. That''s what I say, but everyone knows that the so-called "waiting for a decision from superiors" is just an excuse for buffering. ?However, for the sake of safety, Zhang Zhenhua, who had been silent before, still added that one hit will kill: Mr. Purdy, I hope you can give feedback to your superiors. Our investigation team will personally bring the turbine blades you ordered to the UK. The fastest... it will be in place in about seven days. (End of this chapter) Chapter 1064 What kind of waves can three people make Chapter 1064: What kind of waves can three people make? Now that the matter is over, there is no suspense about the outcome. There are only zero and countless times of compromise. From the perspective of Panos Watson, who is about to get imminent, Chinas so-called investigation team is not large in scale, and it all bears the name of Ciro Company. They also say that they can complete and deliver the goods within 7 days in advance. Its not that its unacceptable. ??Anyway, we already have a lot of troubles in front of us, so we dont care if we have a little more. What''s more, Bodi''s words also have a very obvious tendency to induce. In short, after a short discussion, the two decided unanimously to agree to China''s request. ?Of course, I dont agree casually. There are additional requirements. First, the scale cannot exceed four people, and after arriving at Rolls-Royce headquarters, all investigation activities must first obtain permission. Second, the blades must be delivered before returning to England. Since the Bodi people are in China, they can be handed over to him directly. ?Three, you cannot enter the test area where test benches No. 57 and 58 are located. After all, in addition to the Trent 900 that has been transferred, there are many other top-secret models that are still in the concept stage. ?For example, the detonation engine that was previously blamed for the blame, and the zero-emission aviation engine that uses hydrogen energy as fuel, etc. Let alone Chinese people, Americans cannot show them casually when they come (probably). To put it bluntly, I still have a bit of the past mindset and feel that the Chinese will definitely want to take this opportunity to steal technology. But in fact, although Chang Haonan''s purpose was to accumulate experience for the Haofa Group, he already had a rough draft of the basic plan for the Turbofan 20. There was really no need to go back and reverse engineer the design of Luo Luo. . So for him, these two requests made by the British were basically equivalent to nothing, and he immediately asked Ren Bingda and the others to agree. So, seven days later, a three-person Chinese delegation headed by Ren Bingda took twenty low-pressure turbine blades and boarded a flight to the UK together with Bodi. Along with the leaves, there are three tips given by Chang Haonan before leaving... Of course, its just a way of saying it. Its not really for Ren Bing to break it up after arriving in the UK... ??When a few people landed in London and arrived at Rolls-Royce headquarters in Derbyshire via transit, it was already the early morning of another day. The continuous travel from France to England to China for many days made Bodi a little unbearable, so his original plan was to rest for a night and hand over the blades and people to Watson the next morning. But the Chinese trio, who had been recuperating for a long time and were just waiting to perform in front of the British, would naturally not agree. ?And Bodi didn''t dare let them run around alone. In the end, I had no choice but to endure my fatigue and go to find Georgia Wilson overnight. The latter was originally the engineer of test bed No. 58 and was responsible for all ground tests of the Trent 900. Since something happened on the test bench, the entire investigation was naturally handed over to him. Director Bodie...you are finally back. ??Although Wilson said Bodi''s name, his eyes were fixed on the large lockbox in the latter''s hand. Obviously, he is still more concerned about the recovery of the subsequent accident than Bodi. In recent days, more and more media have appeared around us, and even Airbus has begun to contact us directly, obviously out of suspicion... ??While taking the lockbox, he complained about the current situation. But just as he stood up, he was interrupted by a cough from Bodi: Qiao, I have a few more people I want to introduce to you. It was only then that Wilson raised his head and carefully observed the other three people following Bodie. It is early morning in the UK in April, and the temperature is still a bit cold. Therefore, the three of them, Ren Bingda and others, all dress up in British standards. If you dont pay attention to the skin color, it looks like the most ordinary old British Union Jack. "Is it...the delegation from China?" In fact, Watson had already told Wilson about this a week ago. ??It''s just that the latter didn''t expect that the other party would come over at this **** time. Strictly speaking, we are now the Trent 900 accident investigation team sent by Ciro. ?Ren Bingda took the initiative to take two steps forward and introduced himself in English that was not particularly proficient: My name is Ren Bingda, and I am the leader of the investigation team. If you need any cooperation or help, you can communicate with me. Welcome. After hesitating for about half a second, Wilson raised his arm and shook hands with Ren Bingda. Then, he raised the password box he was carrying in his other hand and gestured: "But I think... being able to deliver these blades in the shortest possible time is already the greatest help to us." Obviously, he did not think that just three Chinese people could play a decisive role in restoring the truth of the accident. In fact, Wilson himself has basically determined that there is no quality problem in the turbine structure itself, but it is external damage that causes the speed to exceed the limit, and eventually the blades are thrown off and penetrate the casing. ??Its just that the source of this external damage cannot be determined in a short time, so additional experiments are needed to prove ones point of view. "But we don''t think so..." Looking at Wilson, who seemed to be unsophisticated and looked like a standard engineer, Ren Bingda stopped talking in circles: At the very least, we need to witness the entire investigation. ?Wilson raised his head and looked at Bodie with pleading eyes. ??The latter was already sleepy-eyed at this time, and just wanted to get rid of the trouble at hand, so he shrugged helplessly: No way, the agreement is indeed like this. Their individual activities require our permission, but they must also participate in the entire investigation process. He paused for a few seconds and then gave a special instruction: The final investigation conclusion also needs their signature to be complete The meaning is very clear, that is, at least not to offend too severely in terms of face. Wilson, who had no room for maneuver, rolled his eyes and nodded: Okay Then you come with me, but you cant touch the engine parts without my permission, even the wreckage. You cant read relevant documents at will, you cant enter and leave the investigation site at will, and you cant take pictures ?? He mentioned more than ten items in a row, completely treating the three of them as visitors who could only cause trouble. ?Ren Bingda even wanted to choke back. But after thinking about Chang Haonan''s special instructions before the trip, he still took a deep breath and managed to calm down. You will know who is useless in a few days He thought angrily in his heart. Soon, the three of them followed Wilson to a workshop specially set aside for accident investigation. Almost as soon as they entered the door, they were shocked by the scene and almost stopped in their tracks - An engine with its rear half almost broken, is placed on a bracket. And around it, there are densely packed, at least thousands of pieces of various fragments... Or, wreckage. Breaking, twisting, melting There are many ways of damage. A considerable part of them cannot even see their original functions and appearance. This is also the most troublesome part of the accident investigation. It is difficult to determine which is the cause of the accident and which is the secondary damage caused by it. ?Approximately two dozen investigators are checking their production and manufacturing conditions, as well as the working data in the last test. Considering that it is already late at night, I am afraid there will be more people working here during the day. In comparison, the three of them do seem a bit weak. ?For a moment, even Ren Bingda had some doubts about the scope of investigation drawn by Chang Haonan. Its not that I doubt the other partys judgment, but that I doubt whether enough evidence can be found to convince the British. For example, a broken oil line. ?More than half of the fuel and oil pipelines on the entire machine are broken. Why do you say that a certain section is the source of the accident? As for the other two people, their reactions were almost the same. Mr. Ren. ?One of them lowered his voice and whispered: Just the three of us... are we going to find a substandard part from this pile? Fortunately, Ren Bingda has cooperated with Chang Haonan after all, and knows that in this situation, it is most taboo to act on his own: Follow Mr. Changs instructions before leaving the country. If you cant find any problems... well talk about it later. The conversation between them was entirely in Chinese. In this era, it was still encrypted, at least Wilson couldn''t understand it at all. ??But it is not difficult to guess the content of the conversation from the tone. The latter turned around with a little sarcasm on his face: So, where do you want to start participating in the investigation? In fact, if Wilson puts the Chinese trio aside and lets them watch, Ren Bingda will really feel a little numb. After all, even with a clear direction of investigation, it is difficult to find the problem just by observing from a distance. But he may have felt that the three of them would have no idea what to do when faced with this situation, so he asked more questions. But this sentence undoubtedly gives an opportunity. ??Ren Bingda decisively ignored his tone and responded immediately: We are responsible for the production of the high-pressure and low-pressure turbine parts, so lets start with these two parts and the corresponding external casing accessories! ?Such a decisive answer confused Wilson. ?His original expectation was to give him a blow first, wait until he was confused, and then send the other person to do something casually. ?However, now that others have clearly expressed their wishes, and coupled with what Bodi said just now, it is a bit difficult to step down. ?However, until this moment, Wilson still didn''t feel that the three people made any waves based on their naked eyes. Finally decided to agree: Okay, but dont forget the requirements just now. If you need to compare the parts with the design plan, you can ask me or other staff to do it for you... "good." ? Ren Bingda, who was suffocating in his heart, nodded, and then called the two people behind him to step forward together... (End of this chapter) Chapter 1065 Mr. Chang has figured everything out. Chapter 1065 Mr. Chang has figured out everything ?After receiving the turbine blades delivered by China, Wilson began to organize manpower to prepare for accident simulation restoration. ?Of course, it is impossible to go to the test bed and blow up another Trent 900. Even though Rolls-Royce has a big business, it is impossible for Rolls-Royce to survive this kind of play. Instead, it is carried out in specialized laboratories. The scope of the simulation is also limited to the timing, trajectory and destructive force of the blades being thrown out after the turbine over-rotates. ? It is certainly impossible to directly find out the cause of the accident by this method, but it can at least prove whether the core machine of the Trent 900 itself has a fatal flaw. In fact, this is exactly the core purpose of Wilson, or in other words, project director Panos Watson For Rolls-Royce, the top priority is to buy enough time for the Trent 900 and calm public opinion. ?As long as it proves that the core aircraft is fine, Watson dares to let Bodi and Airbus restart negotiations. At that time, all rumors will naturally subside. As for the accident itself There are still more than two years from now until the planned first flight of the A380. ? Even before air testing using the A340 platform, there is still a year. ?As long as the problem does not involve the core machine, other problems can be corrected no matter what...right? In short, even if it is not corrected, the problem can be delayed for one to two years. Its all worth it. It is precisely because of this that from the day of the next day, Ren Bingda keenly discovered that the number of people working with them in the assembly workshop had actually decreased compared with that in the early morning. More importantly, Wilson himself, who had previously vowed to "come to me if you have anything to do", was nowhere to be found. ?Although this is objectively more conducive to the next operation of the three people, he still cannot accept the feeling of being kept in the dark despite his multi-tasking skills. ?The fundamental purpose of the group sending them here was not to solve the problem with Luo Luo''s voluntary labor. But take this opportunity to improve Chinas status in the international aviation industry. Fortunately, for Ren Bingdas generation of Chinese technicians, being left aside by foreigners is a perfectly normal experience. ?So he skillfully took advantage of the opportunity of asking someone to help compare the production documents, and made some insinuations to several British engineers around him. At this time, I was shocked to learn that the accident simulation restoration had begun. One of the young people who came with him immediately became furious when he heard about this incident and said that he must seek an explanation from Wilson. However, he was stopped by Ren Bingda. Mr. Ren His eyes were full of confusion. The King of Hell is easy to meet, but the devil is difficult to deal with. This Wilson is intentional. He makes us frequently stop what we are doing to look for him, and we are unable to devote ourselves to our work. ??Ren Bingda explained as he turned around and returned to the pile of broken parts. Then we cant just wait and see, right? ?The other party followed behind and asked: And I think this accident simulation will be very helpful for us to understand Rolls-Royces engine design and testing process. At this time, another person who was relatively calm had already realized the new problem: "But Mr. Ren, there are only three of us... Considering taking turns to take breaks, there are only two working at the same time most of the time. If one more person is assigned to participate in the accident simulation, wouldn''t it mean that only one person is left here to complete the daily tasks? The mission assigned by the general manager? For a time, the situation seemed to be at an impasse. ?Faced with this situation, Ren Bingda showed a confident smile: Of course its impossible to just wait... "We have a general understanding of the situation here. Bodi will be here in a while. We have another meeting with Panos Watson, the general manager of the Trent 900 project, before noon. Then we will meet directly with Panos Watson. Just let him talk and explain these things clearly..." It was only then that the other two people reacted. ?Wilson is not the easy-going King of Hell as Ren Bingda said. But a difficult little devil. Ren Bingda took out a notebook from his pocket and slowly began to record the damage of the parts corresponding to each number. He continued writing while writing: As for the manpower issue... we dont need to participate in their entire reduction test. As long as we can participate in the technical meeting after the test, it can take up to about two hours a day. If you free up a little time, you can participate. Of course, when we meet with Watson later, we still have to ask for full participation, so that it will be easier to negotiate later... Sure enough, everything was just as he expected. As project directors, Watson and Purdy were unable to renege on their promises regardless of their image like Wilson. After all, the previously reached agreement clearly stated that the Chinese delegation was allowed to participate in the investigation throughout the entire process. ??If the latter is excluded from a key link such as accident simulation and restoration, then in the end we wont even be able to sign the investigation report. ?However, Wilson, who was temporarily called to the conference room, was obviously well prepared and also brought out the contents of the agreement. Indicates that the accident restoration workflow involves the core parameters of the Trent 900 and the technical secrets of their test team, which is a part of the agreement that can be exempted. After a stalemate, both sides had no choice but to take a step back. Huaxia no longer insists on participating in the entire accident restoration process, but the final results report of the restoration and regularly held technical meetings must be conducted with the presence of at least one person from China Xia. In addition, Ren Bingda and the others also obtained permission to directly access the external accessories of the turbine and its production materials. Anyway, for Rolls-Royce, since the core turbine part is produced in China, there seems to be no need to cover up the things outside the casing. However, for the targeted Chinese investigation team, this seemingly subtle change can have a qualitative impact on work efficiency. In the half day before this, every time they found a suspicious part, they had to find the British engineer nearby to compare it with the production documents. But others also have their own tasks and are not specifically responsible for this. I can only help in my free time. Now that you can check it by yourself, it is equivalent to skipping the most time-consuming process. Therefore, after taking turns to rest that afternoon, the progress of the remaining two people was an order of magnitude higher than before. So much so that even Ren Bingda himself didnt expect it. ?They found what they were looking for before Wilson completed the first stage of accident restoration... On the morning of the third day, Ren Bingda, who was inspecting the turbine attachment group as usual, suddenly heard an excited but obviously deliberately suppressed voice: Mr. Ren, I seem to have found it! "Um?" Ren Bingda stopped what he was doing and raised his head. ?However, he was not as excited as the other party First, this work is really boring and monotonous. After working for three consecutive days except for eating and sleeping, even Ren Bingda felt a little numb. Secondly, he himself had discovered highly suspicious parts several times before. After comparing them excitedly, he found that either they were originally designed in this way, or they were obviously damaged by secondary damage. They have nothing to do with the cause of the accident. Hence, at the beginning, he actually didnt have much expectations. Just as a routine, I came to the subordinate with my notebook and prepared to find the corresponding technical information according to the number for comparison. This time, however, he didn''t even wait to write down the part number. Just look in the direction the other person is pointing. He opened his eyes suddenly. ?That is a short length of pipe. Should be used to transport lubricating oil or fuel. Due to the combustion and subsequent explosion, it has been somewhat deformed in the middle. ?At a quick glance, it seems to be no different from hundreds or thousands of other similar wrecks. However, if you look closely at the cross-section of this pipe, you will find it. The thickness of its tube wall is inconsistent. In other words, it is an eccentric tube. Basically, such a design will only be made in some extremely special circumstances, or where self-respect is required. Turbine accessories for aircraft engines are obviously not included in this list. In other words, this is almost impossible to be a design requirement. There is a high probability that there is a problem during production! In an instant, Ren Bingda felt ten years younger. My legs no longer hurt, and my waist is no longer sore. He stood up with a groan, resisting the dizziness caused by insufficient blood supply to the brain, and found the list of external accessories of the receiver and the production technical documents from the side. After comparing them one by one, we quickly found the location of this short pipe High and medium pressure turbine bearing casings, oil delivery pipelines. Unsurprisingly, in the design document, here is a uniform short pipe with a wall thickness of 0.91mm. At the moment, although the two of them do not have precise measuring tools at hand, they can still see with the naked eye that the thinnest part is not even half a millimeter. What a coward Looking at the production technical documents in front of him, the young man next to him felt emotional and even spoke in dialect: Mr. Ren... to be honest, I still cant believe it... ? Such quality problems that are so outrageous that they can be seen with the naked eye are simply unimaginable for someone like him who only started working in the mid-1990s. However, it passed two inspections by the first-tier supplier and Rolls-Royce itself, and was installed on the Trent 900 for testing. Ren Bingda next to him looked calm on the surface, but his slightly trembling hands clearly revealed his inner shock: Its really an oil pipe ?Before this trip, Chang Haonan specifically asked to focus on turbine accessories, especially the fuel oil supply system. ?Although he did as he was told, he was still a little bit murmuring in his heart. After all, there are thousands of possibilities for externally causing shaft breakage, and it is difficult to smoothly deduce the real cause. But now that the ironclad reality is before him, he cannot help but not believe it. At this time, Ren Bingda suddenly remembered that he seemed to have talked to Chang Haonan about the turbine attachment half a year ago. Check again which supplier produces this part of the turbine accessories. There was a clicking sound of the mouse wheel next to him. Its...Kawasaki Heavy Industries. (End of this chapter) Chapter 1066 The role of China must be reflected! Chapter 1066 must reflect the role of China! Hearing this answer, Ren Bingda instantly understood. At least I think Ive realized it Six months ago, when he just took over the turbine blade manufacturing task from Rolls-Royce, he once told Chang Haonan at a meeting that the people responsible for producing the Trent 900 engine turbine shaft and turbine accessories were Ishikawashima Harima. Heavy Industries, and Kawasaki Heavy Industries. ?Ren Bingda clearly remembered that Chang Haonan''s expression after hearing this was very intriguing. ? But he didnt think much about it at the time. He just thought that the other party was considering how to replace the share of Japanese companies in this link in the future. But looking back now, I am afraid that I had anticipated that something would go wrong at the time! Following this line of thought, everything is already connected. After all, Chang Haonan was the first to discover the word-of-mouth crisis among Japanese companies that year, and it was caused by an accident during the testing of NH90. And the plot of Trent 900 before us... Isnt it exactly the same? Considering that Chang Haonan had the foresight to emphasize to Rolls-Royce in writing last year the risk of over-rotation after a broken axle, the circumstances of this accident were completely consistent with it... Reasonable. Its too reasonable. "Then if Mr. Chang faces this situation, the next operation should be..." ?Ren Bingda began to try to put himself in another person''s shoes, trying to simulate what he should do next in Chang Haonan''s "plan". It wasnt until the subordinate next to him shouted twice that he woke up from his brainstorm. Mr. Ren, this is absolutely irrefutable evidence. As long as we take it out, we can almost directly determine the cause of the accident. Can we... Obviously, after feeling frustrated for several days, the former could not wait to feel proud. But Ren Bingda, who almost jumped up just now, calmed down now. Theres no rush. He raised his hand to stop the other party: As the saying goes, if you see one cockroach in your house, there are probably a thousand more hiding in the shadows that you havent noticed. Its just such a short piece of pipe now. Although it can indeed explain a lot of problems, it cannot fully reflect the role we play, and it is unlikely that such an outrageous quality problem will only appear in this small section of a few centimeters. "You and Xiao Jin will be more busy in the next two days. Find out other parts of this short pipe and the lubricating oil part of the entire medium and high pressure turbine shaft and analyze them one by one to see how many obvious substandard problems there are. " "yes!" ?The other party nodded immediately, but then turned curious: Then you, Mr. Ren I am going to produce a report before the first technical meeting the day after tomorrow, and completely block the mouths of the British... ??Ren Bingda stood up again, adjusted his work clothes and said... Time came very quickly two days later. According to the schedule, the first technical meeting after the start of the simulation restoration will be held this afternoon. Nearly everyone came to the conference room early, waiting for Wilson to appear It has been more than half a month since the accident occurred. Public opinion''s reaction was secondary, but Airbus, which had been dragged along, was already a little unable to sit still. ? Even the French cannot accept negotiations initiated by the other party, but with no progress in two weeks. ?Furthermore, rival Engine Alliance has also smelled something amiss and is stepping up public relations against Airbus. It is hard to say what will happen if the delay continues. It can be said that the outcome of this accident restoration will be directly related to the future and destiny of the entire Trent 900 model. The atmosphere in the conference room was so depressing that it made people feel breathless. ?Panos Watson raised his hand and looked at his watch. There are still twenty minutes left before the meeting officially starts. Have you been contacted by Wilson? ?He suppressed his irritability and tilted his head to ask Tim Purdy next to him. I contacted you and the testing center reported... Halfway through the latters answer, he heard the sound of the conference room door being pushed open. Everyone turned their heads in unison. ?Wilson was standing at the door. He didnt even have time to put his laptop into his bag, but held it in his hand with the lid open. From the tired expression on his face, it was impossible to tell whether the outcome was good or bad. Since Joe has arrived, lets start early... ??Pody was also very anxious at this time. He quickly motioned for Wilson to sit on the left side of Watson, and then subconsciously looked around, preparing to announce the official start of the meeting. But before the last word was uttered, he realized that there seemed to be someone missing in the venue. The sudden stop of the sound naturally attracted the attention of others.?????"Pordie?" Watson looked at him doubtfully. Supervisor, the Chinese representatives havent arrived yet. According to our previous regulations, the meeting cannot officially start yet. Where are they? When I contacted you before, I said I had already set off from the workshop, but now... I should still be on the way. As a very large enterprise with a century-old history, Rolls-Royce''s headquarters is close to a small and medium-sized town, and it often takes a long time to get from one area to another. ? Watson had no choice but to take a deep breath and continue to wait patiently. Anyway, those three people have no practical use, why dont we start first? Soon someone suggested. ?But Watson still maintained his sanity after all. It is obviously not worth spending these 20 minutes to lay a foundation for the subsequent accident investigation. Finally, five minutes before the meeting started, Ren Bingda strode into the conference room and found a place to sit slightly behind the conference table. At almost the same time, Bodi finally announced the start of the meeting. We have now completed the first phase of the accident simulation. ?Wilson didnt even glance at Ren Bingdas direction before opening the PPT and going straight to the point to introduce the current work progress: Thanks to the cooperation of Dr. Leah Lapworth, we used part of the last data returned by the test sensor to restore the working conditions inside the entire turbine from the temperature abnormality to the blade being thrown out. "It is completely certain that the root cause of the accident has nothing to do with the turbine. The medium-pressure and low-pressure turbine shafts were broken by external force about 2.5 seconds after the temperature abnormality occurred, which in turn led to the loss of fan load and the rotation speed in the next 1 second. Rising to twice the maximum allowable limit, the poor-strength titanium alloy low-pressure turbine disc was the first to be unable to withstand the centrifugal force and exploded. The broken piece then penetrated the casing and was thrown out of the engine, causing more serious secondary damage..." I have to say that the British are really good at making PPT. ??With Wilson''s introduction, the 3D scene reproduction projected on the screen keeps changing. Even a non-professional melon-eater sitting here will most likely be able to understand everything. So... the blade part wasnt even the first thing to break? ??Pody was a little surprised by this result. After all, according to intuition, when the speed gradually increases, it seems that the thin and fragile blade root part should be the first to cause problems. At least...thats the case for restoration. ?Wilson replied while controlling the computer to enlarge one of the pictures: Unlike high-pressure and medium-pressure turbines, the most vulnerable part of the low-pressure turbine structure is the turbine disk. Even the first thing to cause damage to the casing is a broken block formed after the turbine disk is broken. ?At this point, someone finally noticed Ren Bingda, who had been sitting in an inconspicuous place and had never spoken. After all, these two parts are produced in China. But the latter was lowering his head and writing down something in his notebook, and seemed to have no intention of interrupting. ?And Wilson quickly moved on to the next part. Our next plan is. ?As he spoke, he turned and looked at the colleagues in front of him: At least three more sets of experiments will be conducted to determine where this so-called external force impact comes from, whether it is outside the casing, or from the high-pressure compressor and combustion chamber. The atmosphere that had just relaxed a little became tense again in an instant ?Just because there is no problem with the turbine, it does not mean that there is no problem with the core engine. ?Then there are two other parts after all. ?The problem Bodi has in mind is more long-term: Three sets of experiments...are the materials enough? Thats the problem. ?Wilson replied: Currently, there is only enough to make one set, and the remaining parts still need to wait for a new batch of turbine parts to be delivered. ??Bodi''s hand holding the pen shook violently. The entire conference room became quiet again. Even if the delivery cycle is not considered, the three sets of experiments will have to wait at least another half month to be completed. There is no time in any case. So, the order is crucial. At this time, Ren Bingda finally spoke: The next batch of blades has been declared for customs and will be delivered in about a week. It will not affect the progress of the investigation. A sudden sentence suddenly attracted all the attention. Including Wilson. In addition, it may not actually be necessary to conduct three more experiments. As he spoke, Ren Bingda took out a document that was about fifty or sixty pages thick from the briefcase he carried with him: Our investigation team has found some very interesting evidence through comparisons in the past few days, so... it is recommended to start from outside the casing, strictly speaking, from outside the casing of the high and low pressure turbine shaft parts..." (End of this chapter) Chapter 1067 Deep cooperation Chapter 1067 Deep Cooperation ??Ren Bingda''s words did not trigger the shock he imagined. The conference room was filled with more... At a loss. On the one hand, according to other people''s expectations, the so-called investigation team sent by China should be just a soy sauce. Even if it does work, it should be related to turbine blades. And the sudden sentence just now was completely unexpected. ?On the other hand, I really dont understand it. ??People of Ren Bingdas generation cant help but speak Chinese with a dialect accent, let alone speak a foreign language. As a result, the conference room, which had been a little agitated by Wilson''s presentation just now, actually showed some signs of silence. Fortunately, Tim Purdy responded quickly: Uh...Sorry, but could you please say it again? Upon seeing this, Ren Bingda stopped worrying. Instead, he picked up the information in his hand and knocked it lightly on the table: We have found some interesting results, please get me a projector. At the beginning of the 21st century, conference rooms have not yet been completely occupied by multimedia equipment, especially some old-school technicians who still prefer traditional methods. ?Hence, his little request was quickly fulfilled. Did not wait for an invitation from anyone, nor asked anyone. Ren Bingda briefly recalled Chang Haonan''s appearance when he held a meeting with them before, and then walked to the back of the small podium amidst dozens of looks that were either doubtful, doubtful, or expectant. Then, place a page of the information on the projector''s shelf. ?Looking at his confident look, even Wilson, who had been a little dismissive just now, subconsciously corrected his expression at this time. Quick, close the curtains! ??Podi turned around and whispered to the few people behind him who were closest to the window. As a few clattering sounds were heard, the things on the curtain gradually became clear. ?? is a hand-drawn schematic diagram of a short hollow tube, as well as a series of detailed design and manufacturing parameters. There is also a photo attached at the bottom. It''s a pity that it''s a little vague. Wait a minute, didnt I say that before ?Wilson''s expression changed slightly. But this time, he was stopped by Watson sitting in front with a wave of his hand. Mr. Ren, please continue. Obviously, the so-called "cannot take pictures" should be just a restriction casually stated by the former himself. ?? is not an official requirement from Rolls-Royce. ?However, Ren Bingda still explained it very "intimately": "Mr. Wilson, I think it is necessary to explain that this photo was not taken by us, but was extracted from a panoramic photo taken by you and enlarged." At this moment, Wilson was speechless. Accident investigations usually involve tens of thousands of various evidence collection and archival materials. Recently, all his energy has been focused on simulation restoration. It is normal for him not to be impressed by part of one of the photos. ??But its still a bit embarrassing to be pointed out in public. Fortunately, Ren Bingda was too lazy to argue with him at this time, so he turned around and continued his performance: "During our investigation, we found a short lubricating oil pipe numbered 33-1472, installed on the medium and high-pressure turbine bearing casing. According to the design, the wall thickness of the pipe is 0.91mm. However, after actual measurement, we found that it was not processed during processing. When the inner hole is concentric with the outer wall, the thickest part of the final products tube wall is 1.42mm, while the thinnest part is only... 0.35mm. ?Even, in order to prevent the people below from being unable to hear clearly, when I said this, I even slowed down my speaking speed. finally. Unsurprisingly. When the number 0.35 is spoken. ?The scene was in an uproar. How is this possible? Some people immediately raised doubts. With this reaction speed, Ren Bingda had reason to suspect that the other party didn''t even have time to think, and was just too shocked to trigger a subconscious reaction. ?However, this question was exactly what he wanted, so he answered patiently: Indeed, when we first discovered this situation, we couldnt believe it either. After all, Rolls-Royce is a company that has strict requirements on products, so it would be a bit unbelievable that such a problem would occur. "Actually, we had discovered the anomaly in this short pipe two days ago, but in order to avoid misjudgment we did not announce it in advance. We spent another two days compiling a detailed report before finally determining that it was a manufacturing problem. Correct ?Ren Bingda paused for emphasis before talking about "strict requirements" and "unbelievable" - Although the entire sentence seems to express praise. But combined with the actual situation at hand, the actual meaning is obviously exactly the opposite. For a time, Watson and Bodie''s faces were like changing faces in a Sichuan opera, turning red and white. As for Wilson When Ren Bingda first came to power, he still had a bit of anger on his face. Obviously, he has made a plan. No matter what the former says, he will have to fight with him. After all, accident investigation is a very rigorous matter, and it is not something you can just make casual assumptions about. ?However, the dissatisfaction soon turned into an accident. Then came the shock. In the end, it turned into a helpless smile. ?This question is too intuitive and there is really no way to solve it... As for others, some are still immersed in disbelief, while others have already begun to consider the issue of responsibility (blame). ?However, as an outsider, Ren Bingda naturally does not need to care about this. He still didn''t stop. Instead, he replaced it with another piece of paper, then raised his hand and pressed it down in mid-air to indicate that he was not finished yet. Then, he continued to add: "According to the relevant parameters previously provided by your company to us, the operating temperature outside the high-pressure turbine bearing casing is about 370-400C, which is much higher than the ignition point of the lubricating oil. Therefore, after the short tube ruptures, the lubricating oil exposed to the high-temperature air will The oil quickly began to burn, and the fire spread to the entire outside of the bearing casing in a very short time..." "Although the fire point starts from the corresponding position of the high-pressure turbine, the temperature of the oil combustion is not high enough to threaten the interior of the high-pressure turbine with the highest heat resistance, including the medium-pressure turbine. Due to the use of nickel-based alloys, it can also continue to work for a period of time. , In the end, the low-pressure turbine shaft, which uses titanium alloy and has an operating temperature below 500C, lost strength and broke first. The low-pressure turbine was decoupled from the fan and lost its load. " Ren Bingda suddenly paused here, and his eyes slowly swept across the entire conference room in front of him: I think you all already know whats going to happen next After he finished speaking, he also imitated the British manner and bowed slightly in a very graceful manner. The more modest he is, the more embarrassed Luo Luo will be. This is the entire process of the accident that we investigated and subsequently deduced. Of course, its just a rough estimate. I hope it can bring you some help ??Ren Bingda thought that the performance, which lasted less than ten minutes, was quite exciting. At least he has six points of skills from Mr. Chang. ?However, the expressions of the people below are even more exciting Nearly 300 people worked hard for more than half a month. The result is not as good as three peoples five days. ?Of course, having said that, the accident investigation was also a matter of luck. Perhaps someone just saw a problematic one among tens of thousands of fragments. But the problem found in the end was so low-level that there was no way to clean it up. The short tube is processed eccentrically, and the deviation is large enough to be visible to the naked eye. Surprised that no one noticed it, it was even installed on the engine. ?This cannot be called negligence, it is simply a crime! Especially Watson. At first he felt a little embarrassed, but after he calmed down a little, he was sweating profusely. Thanks to this being a test machine. ??If this kind of problem is found in test flight aircraft or even in mass-produced aircraft delivered to customers... It''s hard to say what will happen to the company, but as the project director, I''m afraid he won''t get any good results. ?Thinking of this, Watson couldn''t help but stretch a few veins on his forehead. ??If it werent for the fact that Ren Bingda was still on stage, he would have jumped up and started trolling people. ?After taking several deep breaths, he finally managed to suppress his anger: Body, remember to check the supplier of this hose and who is responsible for the quality inspection... Hearing this, Ren Bingda, who was already preparing to step down, suddenly stopped sorting out information: The supplier, we have also checked. Its Kawasaki Heavy Industries. ?For a moment, Bodie felt that he seemed a bit redundant. Why do you let others do everything? This is the complete report we compiled, Mr. Watson, please take a look. ?Ren Bingda stepped down from the small podium and kindly put a stack of documents in his hand in front of the other party. The content has been specially written in Chinese and English, which is obviously well prepared. ? Watson sighed, and without even turning over the report in front of him, he said directly to Ren Bingda: He knew that since the other party came with a printed paper version, it meant that he must have kept a backup. From the time China asked to participate in the accident investigation to today, this set of smooth operations is obviously not just for Luoluo to show off. The matter has come to this, so why not everyone be more open-minded. Mr. Ren, regarding the contents of this report And Ren Bingda obviously also has the idea of ????showing off: The contents of the report can be added directly to your accident investigation results, but... there are two requirements. The first is to deepen the cooperative relationship in the Trent 900 project. At least the external accessories of the receiver should be produced by us. Second, it must be intuitive to reflect our role in the investigation of this accident, as well as the development and production of the Trent 900! (End of this chapter) Chapter 1068 The model is confidential, but the param Chapter 1068 The model is confidential, but the parameters are not. In the conference room, in public, it is naturally not a good place for exchange of interests. ??Moreover, there are many things to come. For example, although everyone now basically agrees with the results of Ren Bingdas investigation, officially, as long as the final report is not released, it can only be speculation no matter how reasonable it is. So this matter must be brought to an end as soon as possible. ??And Airbus have almost reached the end of their patience. Now that it is confirmed that the problem is not with the core aircraft, they have been delaying the unsigned contract and naturally have to sign it quickly. As the saying goes, it is not a blessing to make a fortune but lose a horse. Although the production quality problem is embarrassing, it is not difficult for an industry leader like Rolls-Royce to solve it. Therefore, both Ren Bingda and Panos Watson just laid out the initial conditions and showed that they have a negotiating attitude. Then, the latter politely invited the former out of the meeting room. Of course there is no malicious intent. But what happened next is not suitable for showing to outsiders. Sure enough. ??Before Ren Bingda had time to go downstairs, he vaguely heard an angry roar coming from behind him... The division of pots is entirely Luoluo''s internal issue and outsiders cannot interfere. Therefore, after submitting the situation and the investigation report they wrote to the country, the three members of the Huaxia Investigation Team entered a short leisure time. ?Perhaps due to the shocking performance in the conference room, after that day, although the hard restrictions previously listed in the agreement were still there, almost everyone, including Wilson, became much better towards them. Some of the previously unreasonable requirements, such as not being able to take photos in non-confidential locations, are no longer mentioned. Even taking the initiative to find three people to communicate with. It actually made Ren Bingda learn a lot from the intentional and unintentional thing. Manufacturing, thats it. ? Many details are not core secrets. For experienced people, they are like eating and drinking. But if inexperienced people encounter it, they may be stuck and unable to solve it for months or even years. ? Such days continued for nearly a week, and Ren Bingda finally saw Watson again. Only this time, it was in the other party''s office. ?Compared to the previous one, the fatigue on the latter''s face could not be concealed at all, and he was holding a cup of black coffee in his hand that was extremely bitter just from the smell. ?Based on Ren Bingdas experience of staying up late, he probably hasnt had much rest for many days. But the spirit is much more relaxed than the last time we met. On the sofa on one side of the office, Tim Purdy, the deputy director, and a scholar-looking person he didn''t recognize were sitting. It seems that the main leaders of the Trent 900 team are safe. ??Ren Bingda actually wanted to know who they found to take the blame in the end. But he also knew that now was not the time to discuss this kind of issue, so he had to suppress his curiosity and shook hands with the other three people present. ?The man he did not recognize introduced himself as Roger Elinor, a professor at Cranfield University. Then, no further explanation was given. ??While Ren Bingda was analyzing the identity of the other party, Watson behind the desk also got to the point. "Mr. Ren, we have basically determined the investigation results of this accident. Kawasaki provided high-standard samples during the bidding process, but privately lowered production standards when it came to supply, and colluded with third-party testing departments to forge fake products. The quality inspection report resulted in the short pipe with inconsistent wall thickness being installed on the No. 4 prototype of the Trent 900. " Bodi next to him also followed up and said: Due to the complex shape of the oil pipe, it is difficult to detect the wall thickness of the middle part in a non-destructive manner, but after this accident, we will increase the proportion of product sampling... Ren Bingda understood it instantly. As the number one and number two figures in the Trent 900 project team, naturally according to regulations, they do not need to report the investigation results to an outsider like themselves. ? Even if the previous agreement has included a stipulation that his signature is required for the investigation results, you only need to send him a final copy and that''s it. The reason why such a scene is happening now is entirely because these two people are ready to throw all the blame to the supplier and take out the entire project team. In this way, he, an outsider, can demonstrate the value of united front. ?Of course, Ren Bingda has no reason to object to something that can bring bad luck to Kawasaki. So he directly repeated the request he had made at the meeting before. The meaning is also very clear. As long as you give me enough benefits, I can pretend I dont know anything. ? Bodis expression showed a bit of hesitation: "Mr. Ren, regarding your requirements... The first point is that as long as the product can pass the quality appraisal like the turbine blades, there will be no problem. We need to find new suppliers anyway, but the second point... comprehensive consideration After analyzing and summarizing the current actual situation of 900 and the recognition of the international aviation market, it may be considered that the supplier list of the current model that has been published will be difficult to withstand large-scale adjustments..." A long standard British sentence made Ren Bingda feel a little dizzy. But he probably understood the meaning. ? It is that China''s reputation in the aviation industry is not high enough, and the Trent 900 is at a critical stage of contract confirmation. The accident that just occurred has not yet subsided, and the engine alliance is eyeing it. So the second point is not feasible at least for now. Of course, this is to be expected. ??He brought up the second point, originally just to make a gesture of lifting the roof and waiting for the other party to ask to open the window. Mr. Purdy. Ren Bingda smiled and responded: "If it was half a year ago, the reasons you mentioned might be valid, but now, I think we have proven our ability and responsibility, right?" ??Podi nodded quickly: "Of course, we have recognized this, otherwise we would not commit to giving more production shares... But you know, market-level feedback is always lagging behind. Maybe it will take a few years for Trent 900 to run smoothly commercially. After that, it will be more secure and beneficial to both of us to gradually disclose the role you play." In fact, this was exactly what Chang Haonan had in mind at the beginning. But it is obviously impossible for Ren Bingda to give in in vain: "If this is the case, the public opinion risks borne by you and me may not be equal..." ?At this time, Watson, who had not spoken much just now, stood up and started to sing: Perhaps some compensation can be made in other ways, such as more extensive cooperation on other projects? For example? In fact, by this time, both sides are already playing their cards right. Watson knows very well what China is interested in In addition to money, what is more important is the opportunity to deeply participate in the international market. Just like what they have done in the past in the fields of numerical computing and aircraft design. At first it seems unremarkable. But when the outside world realizes it, they will find that the entire industry is already full of Chinese peoples footprints. ?But in this current situation, he can''t care too much. No matter what the future of the industry is like, Ill get over it first and then talk about it. ?Ren Bingda also grasped this point precisely It is true that China will seize market share, but those who cooperate with us first will not suffer any loss. As a result, the two sides entered the showdown stage smoothly. Professor Elinor, its up to you to speak. ? Watson breathed a sigh of relief and motioned to Elinor who was not far away. The latter calmly pushed up his glasses: We have noticed that the Dassault Falcon 8Z business jet, which just made its first flight not long ago, uses the SeA650 engine based on the M88 core machine, and this engine is equipped with non-contact magnetic bearings provided by you. In fact, SeA650 does not belong to the business of Haofa Group. But it is obviously impossible to show timidity at this time. Thats right. ?He only hesitated for a moment, then nodded decisively: "But as far as I know, it should be part of a complete permanent magnet power generation system." Thats right, thats it. Professor Elinors eyes brightened significantly: We hope to be able to use this system on another model. Ren Bingda''s eyes showed some confusion. But this system is not standardized and needs to be specially designed and customized according to the specific situation...You need to at least tell me the model details? "Well" ?The other party raised his hand to smooth his hair to cover up the slight embarrassment on his face: Sorry, as required, the specific model is confidential and cannot be disclosed to you. ?However, before he could express "Are you kidding me?", Elinor quickly added: But we carefully studied the relevant terms and found that the relevant parameters can be provided to you as long as they are not tied to the model..." (End of this chapter) Chapter 1069 Military product line? Chapter 1069 Military product line? The model cannot be said, but the parameters can be provided. This outrageous situation immediately put Ren Bingda out of control. In fact, as an engineer of Haofa Group, he does not know much about the situation of SeA650, and it is impossible for him to make decisions for others on this key decision. ??But considering that he was still in someone else''s office at the moment, Luo Luo, he couldn''t be too puzzling, so he had to put on a posture of "everything is under control": "Technically speaking, as long as the relevant parameters can be provided, we can provide customized permanent magnet power generation systems, and because the reliability of the entire technology has been proven on the SeA650,...if you are willing, you can even consider not Mechanical backup was installed to further reduce weight and parts count. Hearing this answer, the three Luo Luo people across from them looked happy almost at the same time. ?Among them, Panos Watson directly took a document that had been prepared on the table: Then this accident investigation report But the casting movement was quickly interrupted by Ren Bingda: "But without specific model information, it is difficult for us to estimate the future potential of this cooperation..." The meaning is very clear, that is, we are worried that you British people will dig out a gadget from the pile of old papers that not many people will use, and just build a few or a dozen units to get rid of us. For a century-old factory like Rolls-Royce, this kind of worry is very necessary. After all, you have no idea how many ancient or medieval aircraft around the world still need after-sales service from them. Watson was stunned for a moment when he heard this, and then looked at Roger Elinor who was not far away, and quickly guessed Ren Bingda''s worries: "In this regard, we can guarantee that the initial order quantity of this model will not be less than 500 units, and the lifetime production will not be less than 1,500 units. In addition, in addition to the hardware part of each unit, we will also provide you with premium products based on the production volume. The party pays for the program itself. This condition is quite good. Even so good that Ren Bingda couldnt believe it. After all, the core of permanent magnet power generation equipment, namely the non-contact magnetic bearings, is actually produced in the UK. ? Judging from the mysterious appearance of the other party, it is probably a more sensitive model than the Trent 900, and it is unlikely that the entire system will be manufactured in China and then exported. There must be a change of hands in the middle. Or simply produce it in the UK, with China only providing some parts. In short, there will inevitably be some discounts on profits at the hardware level. The main benefit is probably still in the cost of developing the plan. ?Now the other party has taken the initiative to propose not to engage in a one-time deal on the design, but to charge based on shipment volume. With the expected output of 500-1500 units, this is undoubtedly a favorable plan for China. Generally, this requires suppliers, especially solution suppliers, to negotiate. Of course, no matter how good the conditions were, Ren Bingda could not make a decision on the spot, so he had to say a set of nice words to express that the matter was not within his scope of authority and needed to be handed over to his superiors in the country for decision-making. This is not the first time Luo Luo has cooperated with China. Looking at the tone of Ren Bingda''s statement, he knew that this was not a delaying measure, so he did not insist more. He just repeatedly asked Ren Bingda to improve efficiency. The two sides are now in the same boat. , if the entire plan of Trent 900 is affected, it will be a lose-lose outcome. However, Ren Bingda is not just staying in Luoluo these days. ?This level of PUA has no effect on him: I heard... that negotiations between you and Airbus have been restarted, so this report shouldnt be so urgent? One sentence directly hits the point. Watson and Purdy looked embarrassed at the same time. After hesitating for a moment, the former had no choice but to forcefully make up for it: Although the immediate risk has been resolved, if the accident investigation remains pending for a long time, there will still be problems when entering the mass production stage. "Especially before the A380 is installed for its first flight, Airbus and we need to review relevant documents from each other... Although because of the tight schedule, most of the time they just look at the document list, but if they find that an accident investigation has continued A few months, or even more than half a year, will definitely require some in-depth investigation..." Hearing this, Ren Bingda couldn''t help laughing: According to the timetable, there are still nearly two years before the first flight of the A380. We in China are not British... nor are they French. We are just communicating with our superiors. It will not take so long. ??The unsigned investigation results are one of the biggest bargaining chips in his hand, so naturally he cannot let go of them so easily. After that, I even didnt forget to do a reverse PUA wave: In addition, if you want my superiors to make a decision in a shorter time, maybe you can consider providing some data in advance so that we can evaluate the cooperation... Originally, this sentence was just said casually. Even Ren Bingda himself did not expect to receive any positive response. ??Rolo is not a Muggle. Even though the previous cooperation with China seemed to have given the latter a lot of advantages, from an overall perspective, they themselves did not suffer. ?????????????????????????????????????????????????????However, this time, he was really wrong. ?Eleanor said directly before Watson or Bodie could react: Actually, thats what we are planning to do. Then ?Ren Bingda subconsciously prepared to say some concluding remarks before leaving. When the words came to my lips, I realized that the other persons response was completely different from what I expected. "Um?" He forcefully pushed his half-raised **** back down. Eleanor continued as if nothing was wrong: As partners, I think both of us should have some basic trust, and I also hope that this cooperation can be settled as soon as possible. Of course, the relevant documents are still being sorted out, and it will take a few more days to be available ??Ren Bingda said in his heart that I believe you. When we were working for Trent 900, we were as guarded against thieves as we were guarding against thieves. Now that we suddenly behave so generously, there must be something fishy in it. Moreover, he suddenly realized another problem. This is Professor Elinor. Although he looks inconspicuous, he seems to be the number one person on the same level as Watson, or at least has no affiliation with each other. You must know that the latter is not only the Trent 900, but also the supervisor of the entire Trent series of engines. ?Then what exactly does Elinor mean by cooperation is very intriguing. ??Although Rolls-Royce''s product line is complex, most of them have some historical evolution, and are even old models obtained from Allison Company. It is impossible to carry out such a labor-intensive upgrade as permanent magnet power generation. As for the new products, except for the trump card of the Trent series, there is still a production potential of thousands of units... Then only the military product line is left. ?Thinking of this, he finally understood why the other party said before that the model could not be announced. ??I''m afraid this is not Rolls-Royce''s own business needs, but Party A''s requirements in the contract... ?After sending Ren Bingda away, Watson''s expression changed instantly. The atmosphere in the entire office also cooled down. ??Podi quickly raised his hand and quickly closed the door to the room. Professor Elinor, are you really sure...that you want to give out some data in advance? What does it matter? Elinor shrugged his shoulders, pretending to be completely indifferent: Anyway, the models we jointly developed with GE have become backups, and the value of those data to us is very limited. ?His answer made the other two people stunned: And GE ??Podi''s face showed confusion: Wait a minuteare we not talking about EJ200 Of course not. Elinor showed an expression that he couldnt bear to look at: Its difficult to finish the EJ200 properly now. How can I possibly use this radical new technology again? Watson finally turned a corner now: So...from the very beginning, the model you planned to cooperate with the Chinese people was the F136? ?Eleanor leaned on the back of the sofa, making a relaxed posture: Actually, its not me who is looking for him, but Director Tom Hartman. And strictly speaking, it is not the F136, but the vertical take-off and landing version of the lift fan of the JSF project. Their original plan was to completely use permanent magnet power generation equipment and magnetic bearings to replace the traditional fulcrum, but later found that this was too radical and could not guarantee the development cycle, so in the end it became only the fans using new technologies to reduce system complexity and weight" (End of this chapter) Chapter 1070 Industrial Construction and Development Chapter 1070 Industrial Construction and Development Committee Professor Elinor''s revelation really made Watson and Bodie digest it for a while. The F136 engine is a power specially developed for the JSF project in cooperation between General Electric and Rolls-Royce. ?Although it lags behind its competitor Pratt & Whitneys F135 in terms of progress and has lost the right of priority, the project itself has not been canceled directly, but is still progressing steadily. ?This is mainly due to the U.S. militarys dual-producer procurement strategy After experiencing the reliability disaster of the F100-PW-100 in the early years, the US military referred to the supplier AB''s ideas and provided two optional models for fighter jets, especially single-engine fighter jets, to avoid the situation of the entire military being overwhelmed again. . For example, in the batch number of F16, block40/50 uses General Electrics F110 series, while block42/52 uses Pratt & Whitneys F100 series. This point has also been continued in the JSF project. At least temporarily sustained. ? Among them, the F136-GE-600, which is planned to be used for the F35B, will be equipped with an additional lift fan in order to achieve the vertical take-off and landing function. It is worth mentioning that the lift fan of Pratt & Whitneys F135-PW-600 was also developed by Rolls-Royce. Always be on the winning side.jpg Thats why Elinor just emphasized that the cooperation with China is limited to this lift fan and does not include other parts of the engine. "But" ??Pody still finds it a bit hard to accept: In other words, you are planning to install core components provided by China on fighter jets produced in the United States? ??At that time, after Snecma broke up with General Electric, it was a joke in the industry when it went to China to cooperate in research and development with the mentality of giving it a try. GE, in particular, was once waiting to see the French laugh. Although the improvement of the M88 itself later proved to be quite successful, it still inevitably lost face. As a result, just over three years later, it was GEs turn to cooperate with China? ?Although its not proactive... But to a certain extent, it can be regarded as being pierced by a boomerang. Facing such accusations, Elinor shook his head very seriously: I have to correct your misconceptions. "First of all, the core of the permanent magnet power generation system is the magnetic bearing. I have previously investigated the equipment supplier of SeA650 and found that the bearing itself is produced by a British company, so Huaxia only provided the design plan and did not Provide core components. "Secondly, although some equipment in the system does need to be provided by China, for the non-core components of the JSF project, many Chinese companies were originally selected as second-tier suppliers due to cost considerations. This was done first by Lockheed Martin. , and everyone knows it well..." After explaining it, the other two people were dumbfounded. Finally I had to change the topic: What about EJ200? I mean the deformation problem... Professor Elinor''s smile froze on his face when he was suddenly mentioned about something sad. After a long time, he sighed and then shook his head: There is no good solution. I have tried my best structurally, and the situation has improved by about 70% compared to before. However, the lack of support in front of the fan still cannot be completely solved. Now we either admit that there are problems with the design of the EJ200 and then re-strengthen the fan case at the expense of reducing the thrust-to-weight ratio on paper, or we restrict large overload maneuvers at supersonic speeds at the flight control level Since 1998, he has been wiping the **** of EJ200 for five years. But it really cant be wiped clean. ?Its useless to add money this time. ?This time, the British surprisingly did not argue. A few days later, some basic parameters of the model were handed over to Ren Bingda. ?Of course, it is an aviation engine design after all, and the basic parameters cannot be explained clearly in a few words. Therefore, the latter quickly sent two of his subordinates back to the country to hand over the conditions offered by Luo Luo and all kinds of information obtained during the trip to the group level. I also brought back a report, which fully described some of my thoughts during my time at Rolls-Royce, as well as my guesses about the nature of this cooperation model, for reference. Ren Bingda estimated based on past experience that for key cooperation projects like this, Mr. Chang would usually give him new instructions within three days. However At almost the same time that the other two members of the investigation team returned home. ?Chang Haonan suddenly received a call from Ding Gaoheng. Facing this sudden invitation, Chang Haonan could not help but feel a little nervous. You must know that in the past year or so, he and Ding Gaoheng have met either near home or during meetings. At this critical period when the Science and Technology Committee is about to be reorganized, the other party suddenly wants to have a special conversation with me, which makes people think a little more - ?Many of the projects he is currently working on are highly dependent on resource support from the Commission of Science, Technology and Industry for National Defense. ? Any major changes in organizational structure or functional scope may have unpredictable impacts. Of course, from a rational level, Chang Haonan also knows it very well. With the development and changes of the times, it is only a matter of time before the Commission of Science, Technology and Industry for National Defense withdraws from the stage of history. ?If you take action earlier, you may be able to take more initiative... Even though it had been a while since he had been here, Chang Haonan brushed his face and came to the office of the director of the Science and Technology Commission. Director Ding. He knocked on the half-open door. Like it has happened so many times in the past. Ding Gaoheng was leaning on his office chair at this time, holding a document with only a few pages in his hand. The other hand is not holding a pen, so it is obviously not correcting. Just looking at it. Xiao Chang...come in! Hearing the voice coming from outside the door, he didnt even raise his head, but directly identified the persons identity from the voice: Sit wherever you want. I dont know if it was an illusion, but Chang Haonan rarely heard a hint of... from the other partys tone... Tired. It is not the kind of physical fatigue after working for days. But spiritually. Subsequently, there was another silence for several minutes in the office. ?Chang Haonan could see that Ding Gaoheng wanted to speak several times, but in the end he held back. At this time, it is definitely necessary for him to start. Director Ding, I dont know why you called me here this time Sure enough, after hearing Chang Haonans question, Ding Gaoheng finally sat up straight: You should be able to guess it...its about the reorganization of the Science and Technology Commission. As he spoke, he put the document in his hand on the table. The former had naturally expected it, but now that he heard Ding Gaoheng''s personal confirmation, his whole expression suddenly became serious, and he stood up at the same time: I resolutely obey the organizations arrangements! ?This slightly violent reaction made Ding Gaoheng very happy. He quickly raised his hand and pressed down, indicating to the latter to sit down: "Don''t be so serious...it''s just that the nature of the unit has changed, it''s not that the department has been abolished." Hearing Ding Gaoheng''s words, Chang Haonan finally breathed a sigh of relief. At least, what he was most worried about did not happen The Science and Industry Committee of the previous generation was actually equivalent to being completely cancelled. Because the Ministry of Industry and Information Technology was built on the basis of the former Ministry of Information Industry, it only incorporated some of the functions of the Science and Technology Commission. Dont underestimate this difference. There will be a huge gap in resource allocation for specific projects. From your tone just now, I thought you were going to... ?He sneered twice and quickly sat back on the sofa. I just... Ding Gaoheng seemed to want to explain, but he had so many words to say that he didnt know where to start. After all, I have been the director of the Science and Technology Commission for 20 years. Even if I dont think about it from the perspective of power and position, I still have feelings for this system. ?Now that I suddenly have to take a back seat, I am inevitably a little bit reluctant to give up. However, due to the impact, it is impossible to say such words clearly even to Chang Haonan. In the end, it turned into a sigh: "well-" ?However, he quickly adjusted his mentality and said seriously: "The current plan determined by superiors is to reorganize the National Defense Science, Technology and Industry Commission into an Industrial Construction and Development Commission. Its functions are to propose new industrialization development strategies and policies, coordinate and solve major problems in the new industrialization process, formulate and organize the implementation of industrial development Plan and promote strategic adjustment, optimization and upgrading of industrial structure..." The Industrial and Construction Commission consists of the General Office, the Industrial Policy and Regulations Department, and the Finance Department ?As Ding Gaoheng showed the reorganization plan bit by bit, Chang Haonan''s mood also turned to surprise. The entire plan can be said to have exceeded his expectations. ??The military industry functions of the Commission of Science, Technology and Industry for National Defense were unified into the National Defense Industry Bureau as a secondary bureau. System Engineering Department I and System Engineering Department II were delisted, and their internal and external names were unified into the National Space Administration and the National Atomic Energy Agency. Correspondingly, the Equipment Industry Department, which he single-handedly established, was greatly expanded and divided into four parts: the Materials Industry Department, the Consumer Goods Industry Department, the Equipment Industry Department 1, and the Equipment Industry Department 2. Not only did it fully encompass all the functions of the former Ministry of Machinery Industry and the Ministry of Metallurgical Industry, which were abolished in 1998, it also listed major equipment manufacturing industries such as civil aircraft and civil ships separately, and established a national key project construction office. ??More importantly, although the direct jurisdiction of state-owned enterprises at all levels has been unified into a newly established department, military industrial enterprises, including aviation power groups, still accept the guidance of the Industrial Construction Commission in their business... In general, its Its a lot of money. At the expense of losing some peripheral powers, the function of planning and guiding overall industrial development was gained. Especially the Equipment Industry Department, in the past few years, it has almost always existed as a sideline. ?It is also often criticized at home and abroad for being not market enough. Now, there is not only the opportunity to become a regular employee. Also achieved tremendous development. It is equivalent to receiving direct affirmation from superiors. This is a great encouragement for the entire equipment industry system and even all related industries. After a short pause, Ding Gaoheng put down the document in his hand, raised his head and continued: "The first leader of the Industrial Construction Committee is currently planned to be Comrade Li Zhongyi. Originally, the superiors also considered promoting Comrade Lan Xinzhi to the new deputy director, but considering that he was too young, it was not approved in the end. It was tentatively decided to be Director of the Second Department of Equipment Industry and concurrently director of the National Key Project Construction Office..." These words are superficially talking about Lan Xinzhi. But actually it also has another meaning. Just to make Chang Haonan mentally prepared. He is too young, and there are still rigid rules in the public service system. There is no way to get further appointment. ?However, for Chang Haonan, as long as the entire industrial system still exists, he has already won a lot. As for the specific position It''s not that important. ?Sometimes, if you dont serve in the Industrial and Construction Committee, your status can be more detached. ?However, just when he thought that the following content should have nothing to do with him. Ding Gaoheng still came up with a surprise: "In addition, considering that the adjustment of department functions is too large this time, in order to ensure as smooth a transition of the military industry system as possible, I suggested to my superiors to establish a defense industry expert group. There will be no establishment, but it can directly report to the Industrial and Construction Committee, or even more Superior leaders provide advice and suggestions. Considering the decisive role you play in major projects and scientific research, Xiaochang, I would like to invite you as one of the advisory members of the expert group... At this moment, Chang Haonan''s mood was probably similar to Jim Hacker''s feeling at the end of "Yes, Minister" when he learned that he had become Prime Minister ?Although you want to agree immediately, you must be more reserved and not be too rude. ?One of his major concerns over the years is that as the leader of the Aerospace Power Group, it is not convenient for him to intervene in the specific business of his brother units. Otherwise, it will inevitably seem like pointing fingers. ?Some particularly important ones, such as Air Police 2000 and ocean surveillance satellites, can only be carried out in the name of cooperative research and development. ??But after all, it depends on whether the other party is willing to actively cooperate. And it is not within the scope of the function, so it is not easy to use it frequently. This so-called unestablished consultant status perfectly solves this problem. It is equivalent to giving Chang Haonan a strong claim on all military-related projects. Its almost like Im dozing off and Ill give you a pillow. Although it is said to be a suggestion. But that is a suggestion to the leadership. There is no need to say much about the gold content. Ding Gaoheng, obviously taking this into consideration, created such a unique position before retiring to the second line. To others, it may only be regarded as an honorary hat. But for Chang Haonan Its really useful. Xiao Chang, before we determine the final list, we need to ask for your personal opinion... He looked at Chang Haonan with a smile. The latter tried hard to control the twitching of the muscles on his face, trying not to smile too brightly. I think it should be fine. (End of this chapter) Chapter 1071 Military and civilian dual-use turbofan 20 Chapter 1071 Dual-use Turbofan 20 Thanks to the establishment of the Equipment Industry Department of the Commission of Science, Technology and Industry for National Defense a few years ago, which actually took over part of the functions of the former Ministry of Machinery Industry, as well as more importantly, personnel and files, this round of reorganization, although structurally speaking, can be called It has been completely transformed, but when it comes to business, there will be no particularly obvious gaps. ?Of course, after all, it is an organization ranked among the top six that is making adjustments. Even if it is just taking off the old brand and putting up a new one, it cannot be done in three days or two. ?Especially as Ding Gaoheng himself was promoted half a grade to take up a casual position in preparation for retirement, what followed was another major change of leaders in various departments. ?This is even more impactful than the institutional adjustment itself. Therefore, Chang Haonan did not leave the Science and Technology Commission immediately after bidding farewell to Ding Gaoheng. Instead, he stopped by to visit Li Zhongyi. Of course, there is also Lan Xinzhi. It should be said that it is not an accident that the former became Ding Gaoheng''s successor. Since the Industrial and Construction Commission regards civilian industry as its future functional focus, Li Zhongyi, who has worked in the non-military industry system for a long time in the past and was responsible for military-civilian integration business at the Science and Technology Commission, has great advantages. Of course, considering that the appointment of director has not yet been officially announced, Chang Haonan cannot be too naked and open champagne to others at half time. Just briefly discuss the direction of future efforts and indirectly express support for the other party''s work. ?However, things are different over Lan Xinzhi. He is retained during the organizational adjustment process. There are four equipment industry departments, but currently only the leadership team of the second department has been determined by superiors. Hence, its time to start discussing business issues. Director Lan, long time no see. At Lan Xinzhi, Chang Haonan''s behavior was much more natural. After all, the other party was able to complete the leap from secretary to department head thanks to the establishment of a department like the Equipment Industry Department. Mr. Chang...thats not right, we should call him Consultant Chang Lan Xinzhi was facing a headache due to the documents on the table. When he saw Chang Haonan walking in, he simply put his pen aside and sat on the sofa next to him. When the latter was at the door just now, he had already noticed the spectacular scene on the desk: I still have to congratulate Director Lan. It seems that the business in hand is much richer than before..." ?There is absolutely no yin and yang in this sentence. ?Although Lan Xinzhi seems to have not made any progress on the surface, some of his functions have even been divided. But the real situation is exactly the opposite. As a new department that started from picking up others and was established in the cracks, the original Equipment Industry Department was not very high in ranking within the Committee of Science and Industry, nor in the actual resources available at hand. If Chang Haonan hadn''t quickly set up the Torch-C.B. Ferrari Machine Tool Factory and built two representative victories in building a heavy-duty die forging press, and concentrated his efforts on entering China''s bearing and gear industry into the European market, it could even be said that It is an existence with a small level of transparency. Even after establishing a stable foothold, if the Equipment Industry Department wants to have an impact on industry, especially manufacturing, it can only do so by providing tilted means at the project and R&D levels. As for directly issuing industrial policies, let the visible big hands take action... Sorry, thats too unmarketable. no. The current Second Equipment Industry Department has been clearly given the authority to propose new industrialization development strategies and policies. ??Furthermore, after the reorganization, Lan Xinzhi, as the first clearly appointed head of the department, directly became the "big brother" from the "little brother" in the same hierarchy. So, even though they are all directors, their qualities are completely different. Dont mention it now. After hearing the congratulations to himself, Lan Xinzhi smiled bitterly: In the past four years or so, our department has been dealing with some specific piecemeal affairs. Now that we have begun to coordinate matters at the policy level, we are still a little uncomfortable..." After all, it is such a big change, and it is normal to need adjustments. Chang Haonan only thought that the other party was being humble, so he comforted him half-jokingly: Whenever you clear up this big table of documents, your work will be straightened out... As a result, Lan Xinzhi was stunned by this casual remark, and then his expression changed from a slightly self-deprecating wry smile to a serious one. Obviously, compared with the so-called incompatibility, the next thing to talk about is the problem that really gives him a headache. Actually, these documents have little to do with the Second Equipment Industry Department ?Lan Xinzhi stood up, returned to the desk, organized the spread documents into a pile, and handed them to Chang Haonan. ??The latter now has the title of consultant, which is justified by looking at these documents. ?Chang Haonan took it in his hand and turned it over briefly. Discovery is a series of approval forms. The format and seal are still the same as those of the Equipment Industry Department of the past, and are obviously not new ones. ??But Lan Xinzhi is carefully selecting from the projects at hand. You should have heard from Director Ding that in addition to the Second Equipment Industry Department, I also have a National Key Project Construction Office, which is responsible for coordinating the construction of major equipment and projects. But Consultant Chang, you also know that really major projects are not decided by units at our level, so it is really not easy to control the scope of business under our jurisdiction..." He stopped abruptly at this point. ?But of course Chang Haonan can still understand the meaning. At this time in 2003, China happened to be at a relatively delicate point in time where "it already had a little money, but it was not very rich". The external manifestation is that you want to let go and do something big, but you are not too willing to let go. ?Huge projects such as the West-East Gas Pipeline, the Qinghai-Tibet Railway, and manned spaceflight are all under the direct control of the Industrial Construction Commission and even higher levels. If implemented into specific businesses, the functions of the four equipment industry departments can be completely summarized. The office headed by Lan Xinzhi is sandwiched in the middle, but close to the original position of the Equipment Industry Department. Place it in the future Industrial Construction Committee system, it seems to be a bit useless. ??But your superiors have handed over a separate new department to you. If you don''t make some moves, or even directly eliminate the sense of existence, it will not be good after all. From Lan Xinzhis point of view, it is indeed worth the headache. ?Chang Haonan randomly picked out a few copies of the information in his hand and read the contents in detail. Then, he frowned slightly. Then I read a few more copies. As a result, my brows furrowed even deeper... Director Lan. ?He showed a somewhat unbearable expression: Whyare they all hosted by university research groups? It is not that Chang Haonan has any prejudice or dissatisfaction with universities. In fact, even in the few tables he pulled out at random, he has already seen the permanent magnet synchronous traction system of high-speed trains, injection excavation and molding technology, underwater compacted sand pile technology, heavy-duty sliding hydraulic system, etc. Many forward-looking research contents. But the problem is that it is too forward-looking. ? Even on the current timeline, it will be difficult for these things to be implemented within ten or eight years. Its not that it cannot be supported, but it is difficult for it to be the head project of the Key Project Construction Office. Just like the underwater packed sand pile. It is one of the core technologies used in reclamation and island building. You want to ask if its okay, of course thats great. However, even if it takes two years to produce theoretical results, three years to verify, and another three years to complete the project. ?According to this devilish efficiency, it would take eight years to build the first island... So Im also worried right now... Lan Xinzhi leaned on his chair helplessly: Now that the big projects that have been clearly approved have been allocated, I can only use a long-term perspective and bet on the future... Hearing what the other party said, Chang Haonan suddenly had an idea: In order to be included in the support scope of your office...are there any hard conditions? ?Although he does not lack resources at the moment, there is no harm in having one more department to support him. What Lan Xinzhi said was originally just a chat between friends, and he did not think of asking Chang Haonan to help. But since the words came to this point, he responded accordingly: First of all, it cannot be military-related projects on the surface. Those will be managed by the National Defense Industry Bureau in the future..." Secondly, it must be independent and cannot rely on foreign countries for the overall project. Of course, it doesnt matter when it comes to parts and components... Then it must have a relatively far-reaching impact on the national economy...but it cannot have too big an impact, otherwise the higher-level departments should take over... After drawing down a bunch of boxes, Chang Haonan finally understood why the other party didn''t look for him in the first place. ?The first and third items alone rule out most of the projects he has at hand. ?However, it is not impossible. What do you think of... Turbofan 20? ?After Chang Haonan thought for a moment, he suddenly suggested: The overall plan is almost ready now. If nothing else happens, the project approval process will begin in the middle of the year. It should not be too late to submit an application now. Lan Xinzhi''s eyes lit up when he heard Chang Haonan took the initiative to rescue him. But then he hesitated for a moment: But thats a military model, right? "I have the impression that Haofei''s twin-engine Y-9 has been under development for some time... In addition, the second equipment target previously estimated seems to be a strategic transport aircraft similar to the size of the IL-76?" Chang Haonan shook his head and organized his words a little: Actually, judging from the experience of developed countries, such as the United Kingdom and the United States, it is difficult to simply define turbofan engines with large bypass ratios, and even large and medium-sized mainline airliners themselves, as civilian or military. For example, the A330, according to our definition, is of course a purely civilian passenger aircraft, but with a little improvement, it can become an A330MRTT aerial tanker. You cant say it is still a civilian aircraft. In turn, the F117 engine used by the C17 transport aircraft is essentially a PW2000, but this cannot be said to be a military model. After all, the same model is also used in the Boeing 757..." "Speaking of the Turbofan 20, although its initial user is indeed the Y-9, the thrust of the 12-14 tons is scheduled to be fully usable on future mainline airliners such as the Boeing 737 and Airbus A320. In addition, if you I really feel that the name Turbofan 20 has too strong a military flavor. Then we can learn from the Americans and have two sets of naming methods for military and civilian use. The one on military transport aircraft is called Turbofan 20, and the one on passenger aircraft is...any other name. Chang Haonan originally wanted to directly copy the name of Yangtze River 1000, but felt that there was no need to decide on it so early. ?However, Lan Xinzhi became interested instead: Referring to the naming method of foreign aviation engines, the abbreviation of your aviation power group is AECC, so why not call the civilian model...AE1500? (End of this chapter) Chapter 1072 Weird fan design Chapter 1072 Strange fan design When he was reborn many years ago, Chang Haonan would deliberately name some projects the same as in his previous life. But as his influence on the timeline becomes more and more obvious, many models with similar positioning have completely taken a new path in technology. In this case, inconsistent naming will become more and more common. Therefore, Chang Haonan has no objection to the name AE1500, which is easy to understand and consistent with international practice. Since Lan Xinzhi even came up with the name on his own initiative, he has obviously approved the plan. After all, he actually had no other choice. Is there any additional process required? ?Chang Haonan asked bluntly. Well...the detailed steps are actually quite troublesome. ?Lan Xinzhi scratched his head in confusion. Such projects cannot be included in the support list casually because they involve financial support. But by inserting the turbofan 20, Chang Haonan was not taking advantage, but actually helping, just like when the Equipment Industry Department was established a few years ago. ??If you still let people run the process in person, it would be a bit too impersonal. How about this? When the project is approved, a representative from our office can participate, and you can leave all matters related to the construction of key projects to him? He had no choice but to suggest tentatively. Thats not necessary. Chang Haonan waved his hand: After all, the Aerospace Power Group is still under the business guidance of the Bureau of Science and Industry. It is not convenient for outsiders to be assigned to the project, and we are not short of one or two administrative personnel. ?Lan Xinzhi was right. Rather than making up these vain ideas, it would be better to come up with more practical ideas... Consultant Chang, what else does the entire project require? After finishing speaking, he quickly added: "Of course, I mean that in addition to the regular funding level, such as land use approval, or other aspects that require cooperation from other industries, as long as it is within the scope of capabilities, full cooperation will be given... It is best to see that within five years, Some achievements with clear stage significance..." Five years. The meaning of this timetable is already very clear. Chinas institutional adjustments will not be limited to the 2003 wave. Lan Xinzhi obviously hopes to produce some convincing results before the next time. ??But it is impossible to directly put pressure on Chang Haonan. So I had to express my position in a roundabout way. ?However, after all, he has been in charge of the Equipment Industry Department for too long, and his knowledge of the military industry has been refreshed a bit slowly. ?Especially after the Turbofan 10 was finalized, although China has not launched the development of a new aircraft engine model, it has accumulated a lot of experience through two international cooperation projects, the M88/SeA650 and the Trent 900. With these accumulations, even civil aviation products are far more complex in testing and certification than military products. But five years is still relatively loose. After all, Rolls-Royces Trent 900, despite several revisions to the design, took five years from project proposal to planned first flight. The rival engine alliances GP7200 plans to make its first flight in three and a half years. No matter what, the technical difficulty of Turbofan 20 is much lower than that of these two models. This model is ready for everything, all it needs is the east wind. Chang Haonan smiled and replied: As long as the planned funds are available, there will definitely be no problem with the research and development cycle. As for your additional support... Ill just make a note of it for now and save it for when I need it in the future... ?Chang Haonan returned to the capital originally to wait for news about the reorganization of the Science and Technology Commission. Now that the boots have landed, even though what he was worried about has not happened, such a big move still kept the entire aerospace power group busy for a while. ?Therefore, it was not until a week later that the specific division plan of the various departments of the Industrial and Construction Commission came out that Chang Haonan was finally able to return to Haojing. ??Also saw two men sent back by Ren Bingda. The model cannot be disclosed directly, but can you provide us with the necessary design parameters? At the briefing meeting, even Chang Haonan was a little nervous after hearing this statement. Thats right. ?Jin Xu, who was introducing the situation on the stage, quickly explained: So Mr. Rens speculation is that this is most likely a military model, and the reason why the design parameters can be provided is that the other party took advantage of certain loopholes in their contract. ?Chang Haonan was originally prepared to accept Luo Luos cooperation proposal, but now he is even more interested: For military models, do you need to introduce a permanent magnet power generation system? There are not many military aircraft engine models under development in the world, and some that obviously do not meet the requirements are screened out... The answer is readily apparent. "Then what''s there to guess...isn''t it F136...or F135?" ?Chang Haonan immediately sat up straight. . Hmm...we also speculated this way at first, but after getting the data, we are not sure..." ?Jin Xu clicked the mouse as he spoke. The PPT then switches to the next page: They gave some data related to the fan, but to be honest...it doesnt look like a typical military aircraft engine... On the curtain, a design drawing is displayed. . It is said to be related to the fan, but in fact, only the parameters of the blade part are relatively complete. ?Of course, if you just use a new non-contact magnetic bearing on the first pivot point like SeA650, then you dont actually need more parameters. Soon, Chang Haonan understood why the other party said it didn''t look like a military aircraft engine... "This size...if converted, wouldn''t the diameter be about one meter and three meters?" An engineer raised his head after doing some simple calculations on paper, showing a rather shocked expression: What on earth do they want to create? You should know that most military aviation engines do not use particularly exaggerated bypass ratios in order to ensure high-speed performance. Under normal circumstances, the diameter of a high-thrust aircraft engine used in fighter jets is only about 1.1 meters, while the diameter of a medium-thrust engine is reduced to about 0.9 meters. What is the concept of this 1.3-meter diameter on an aircraft engine of normal proportions? The NK32 on the bomber in Figure 160 is only about 1.45 meters. ?This size is generally designed for supersonic strategic bombers with a thrust of 20 tons or more. But this is the 21st century, how can anyone still choose this technical route? ?However, for Chang Haonan, this is not a problem. F135/136 did choose a larger fan size in order to meet the thrust requirements of the F35 "single-engine heavy-duty aircraft" and also perform vertical take-off and landing. If he remembered correctly, it should be 1.27 meters. Including the structure surrounding the receiver, it is indeed around 1.3 meters. On the contrary, it further verified the guess just now. What really concerned him was the shape of the blade. Chang Haonan certainly had no contact with the detailed design parameters of the F135 or F136 in his previous life, but when the F35B takes off vertically, you can directly see the lift fan. Even with the naked eye, he could tell that the blade in front of him was completely different from what he had seen in his previous life. At the same time, Zhang Zhenhua, who was sitting next to him, also noticed something was wrong. But not the shape. Mr. Chang, are the British blades... a little too light? He leaned into Chang Haonan''s ear and asked in a low voice: Although I am just estimating, according to its size, unless it is completely hollowed out and the wall thickness is designed to be very thin, even if it is made of titanium alloy, it is impossible to achieve this weight, right? For a time, the entire conference room fell into silence. Perhaps the British gave us false data to begin with? Soon, someone gave a non-technical guess: According to my experience, they were not so easy to talk to in the past. They dared to come up with design parameters before seeing any benefits. This view has gained a lot of recognition. Haofei Group has had a cooperative relationship with Rolls-Royce as early as the late 1980s. It can be said that they are the group of people in the country who best understand the virtues of the British. As long as something happens, it is most likely correct to think of the worst. ?However, there are also different opinions: At Luoluos level, even if it is fake data, it cannot have such obvious loopholes, right? And they dont have to. Zhang Zhenhua added: "If you want us to agree with the conclusion of the investigation report, you must sign the contract. They will provide the real data sooner or later. If you think it is risky to take it out in advance, you can wait until the contract is signed. There is no need to do this. A low-level fake plan came out..." Everyone was coming and going, and their guesses were getting more and more outrageous. In the end, naturally, there was no one, two, or three. Having no choice but to turn his attention back to Chang Haonan, who was sitting in the first place. But the latter was a little undecided at this time, so he had to give a compromise plan: No matter what, lets simulate the performance of this blade first (End of this chapter) Chapter 1073 British crazy ideas Chapter 1073 The Britishs Crazy Ideas Facing Chang Haonans request, everyone in the venue showed some hesitation. Although Haofa Group''s experience in aviation engine design is still a little lacking, there are still some people who have been tempered by the Turbofan 10 project. They are just numerical simulations of a fan, and they do it mainly out of curiosity. There is no need to pursue it too much. The accuracy is not enough to stump them. On the other hand, after all, this is a matter of being a supplier to others, or even a second-tier supplier. Although at this time point, any opportunity to participate in major international aviation projects is extremely valuable to China, as a supplier, as long as there are no loopholes in the contract level, and then make things according to the requirements provided by Party A. It''s done. As for whether Party As design is reasonable or not, and the resulting progress of the entire project, it is actually not their turn to worry about it. What''s more, considering that the design team of SeA650, especially the permanent magnet power generation system, mainly comes from 606 Research Institute, there is a high probability that this project has no direct relationship with Haofa Group. However, the more important reason is still. ??The computing power resources here in Haojing are indeed tight ??Although the timeline has changed dramatically, it is still only 2003. ? In 2003, in the previous life, China''s first model that fully adopted computer-aided design in the development process, the JH-7A, had not even entered service. ?One of the biggest obstacles that needed to be overcome during the design process of the JH-7A was that the supercomputing performance at the time did not support high-precision meshing operations on the entire machine or even on large components. This hardware condition even almost sent the JH-7A back to the drawing board. In fact, when Chang Haonan first arrived at the 601 Institute in 1996, the operation of converting the quadrilateral grid into a "pseudo-triangular" grid and then performing calculations was first developed to solve this problem. Of course, with the support of a large number of industrial and scientific research needs, the performance of the Sugon 3000 series has now reached the forefront of the world and is no longer comparable to the same. However, for aerospace design with higher simulation precision, there is still not enough money to be squandered as it was ten or twenty years later. Finally, Zhang Zhenhua, who was relatively familiar with Chang Haonan, asked cautiously: Mr. Chang, now the entire group is concentrating resources to prepare for the turbofan 20 project. Do you think... can this matter be put off until later, at least until after the project is established? But Chang Haonan waved his hand: Dont think about it that way. From a broader perspective, this can be regarded as part of the preparations for the Turbofan 20 project... Not only Zhang Zhenhua, but also several other people around him looked puzzled. After all, although the design of this fan is indeed a bit strange, and the size is larger than the general small duct and military engine, but in any case, it is obviously not the same thing as the turbofan 20. Facing the puzzled looks, Chang Haonan had no choice but to further explain: Essentially, the Turbofan 20 uses the mature core machine of the Turbofan 15, and the biggest design difficulty lies in the fan. So, although the properties of the engines are not exactly the same, and we are not planning to make any imitations on the Turbofan 20, it will not hurt to learn more about other peoples experiences, just like exam questions. After finishing speaking, he remembered that someone had just raised the possibility of the British providing a fake design. So he added half-jokingly: Even wrong experiences will still have value. Originally, this sentence was just said casually. Because Chang Haonan also felt that, on the one hand, the British would not fool people with such an obvious fake. ?We all know that it is difficult to develop an aviation engine, but most of this difficulty lies in the combination of design and production. It is just a simple design parameter, not even complete, and not worthy of so much thought. On the other hand, according to Jin Xus feedback, the other party handed over the information to Ren Bingda in only two days after the two parties finalized their intentions. This time is basically the time to delete the most sensitive information and check it again. There was no time to make a fake one. ?However, no one expected it. ?His unintentional words actually turned into a prophecy... ?After Chang Haonan simply assigned the task, Haofa Group divided into three teams, responsible for analyzing and simulating this fan...or strictly speaking, this blade shape. The reason why it is divided into three is because the British did hide a lot of information that may seem inconspicuous but is very important in operation. For example, the number of blades in a fan. As a result, Chang Haonan could only deploy three more likely solutions based on his own experience and the blade design provided by the other party. If its not right, adjust it slowly. As for Ren Bingda... ?According to his initial estimation, the performance test of the fan was not a particularly complicated task. It will take about a few days to get a rough preliminary result. It is not too late to sign the contract after verification. Therefore, Chang Haonan still held two positions in Haojing for a period of time, and was responsible for both the turbofan 20 and the communication relay system. The specific simulation tasks were handed over to Zhang Zhenhua. Then The preliminary results were indeed obtained on the fifth day. But the result itself was quite different from Chang Haonans previous estimate. ? No matter which blade number and layout scheme is corresponding, the blade design provided by the British cannot be said to be exquisite in every aspect, or at least it can be said to be useless. Even Zhang Zhenhua couldnt help but complain: "Mr. Chang... If you really want to design a fan... or a low-pressure compressor with such a low pressure ratio and air intake efficiency, very difficult to process, and a small surge margin, to be honest... it''s quite... Difficult. Looking at the calculation results, Chang Haonan also had some doubts about the software and algorithms he developed for the first time... ?However, Zhang Zhenhua quickly saw what Chang Haonan was thinking, and quickly added: Mr. Chang, I supervised the entire work. The three calculation groups completed the calculation tasks independently, and there was no communication between them. In addition, we actually got the calculation results yesterday afternoon, but because it was so... incredible, I asked them to verify the calculation method using the Rotor67 standard blade shape, and no obvious problems were found..." The meaning of these words is obvious. It is unlikely to be a human calculation error. It is also unlikely that there is a problem with the algorithm or program. Its just that the design provided by the British is not right. But the problem is Forget about Rolls-Royce. Even a few years ago, China could not design a fan of this level. Is it possible that the data is really fake? ?Zhang Zhenhua originally didnt quite agree with this guess. But now there seems to be no other more reasonable possibility. Chang Haonan did not answer immediately. He just turned over the short report and read it twice. ??My brain is also a little hard to wrap my head around: But wide chords, swept bends, and air structuresthis is indeed the current mainstream development direction. "And you see, Ye Shan still has some design space left for the boundary layer active control technology... It shows that the British have actually started to pay attention to our research results a few years ago. If they want to provide false data, it is completely These details can be deleted Boundary layer active control is a technology used by Chang Haonan in the design of turbofan 10. Of course, the turbofan 10 itself has no export record, but it was also used in the development process of M88 and SeA650. It is also normal for the British to discover and follow the application. ??The two people who were puzzled fell into entanglement again. After a period of silence, Zhang Zhenhua broke the silence again: Actually, there are more problems with this blade than just that "oh?" ?Chang Haonan also became interested at this time. He really wanted to know what new tricks an engine fan could create. All three groups reported to me that in the process of preparing for fluid-structure coupling calculations, they found that the rigidity of these blades is very low, and elastic deformation will inevitably occur when the properties of any common material are substituted... So in the end there was no The solution is to give up the structural problem first and produce pure CFD results..." For Zhang Zhenhua, he just complained about his experiences at work. But Chang Haonan was suddenly awakened by his words: Elastic deformation? ?He quickly picked up the report that had been placed on the table: What if we consider aerodynamic loads under operating conditions? "Um?" ?Zhang Zhenhua also raised his head, but he still didn''t realize the meaning of Chang Haonan''s question. The latter had no choice but to explain further. At the same time, he took out a pen and paper from the side and drew a simple diagram: You see, the shape of these blades in the resting state, that is, in the cold state, is indeed very strange, but in the working state, that is, in the hot state, the leaf shape will change accordingly... This deformation, in turn, changes the aerodynamic force, leading to further elastic deformation This constitutes an interaction between structural deformation and aerodynamics ?Zhang Zhenhua is also an old engineer after all. He just didn''t keep up with the leaps in thinking just now. ?Now that it has been sorted out like this, how can you still not understand the meaning: Like the wings in an airplane design? Although his major is aviation design, aviation technology is not divided into two branches. Moreover, Haofa Group has been involved in multiple businesses in the past, so he will not turn a blind eye to the issue of outflow. Thats right! Chang Haonan nodded: "I suspect that the British idea is to completely abandon the blade stiffness in order to reduce the weight of the fan as much as possible. Instead, use structural analysis to determine the optimal aerodynamic geometry of the blade under design conditions, that is, the original thermal blade profile. Carry out inverse calculation to obtain the cold processing airfoil, which is the pre-deformed airfoil. And the data we got is this cold-processed airfoil. If we directly use this airfoil to analyze the aerodynamic performance, we will naturally only get a very bad result! (End of this chapter) Chapter 1074 Aircrafts structural pre-deformation de Chapter 1074: Structural pre-deformation design of aviation engine? ?Chang Haonan''s bold speculation made Zhang Zhenhua stunned. At a certain moment, the latter even felt that "the British provided false data" which was more realistic. But if you think about it carefully, it seems that it is not impossible. After a long time, he reluctantly spoke again: Then our next step should be ?Zhang Zhenhua quickly recovered his senses, but the mental shock caused just now was obviously not easy to completely subside, so he quickly asked about the next task. Naturally the first step is to verify this conjecture ?Chang Haonan replied decisively. But you just said... Two-way fluid-structure coupling is indeed difficult, but we verified that we only need to do forward analysis. Chang Haonan said and turned the draft paper on the table that was already covered with drawings to the other side: Didnt you say that all three groups have discovered that the blades elastically deform under working conditions? This is actually half the battle. "During the working process, there are two main types of loads acting on the fan blades. One is the centrifugal load, and the other is the aerodynamic load generated when the airflow flows through the blades. Among them, the centrifugal load is relatively easy to study. Basically it is only related to the fan speed, but the aerodynamic load requires us to comprehensively consider the internal flow conditions, as well as the engine...that is, the external overload of the aircraft itself..." Chang Haonan did not choose to gather all the staff for a meeting, but directly analyzed the problem for Zhang Zhenhua himself in the office. On the one hand, this allows the other party to go through a digestion and output process after receiving knowledge input. On the other hand, Chang Haonan himself has no further specific thoughts on this issue. ?Of course, structural pre-deformation design is naturally among his long-term goals. ?However, according to the plan, this should at least be considered after new theoretical breakthroughs are obtained in the N-S equation. The reason why I keep following them is largely because I just want to see what the British have come up with... With the previous experience and Chang Haonans personal guidance, the preliminary calculation results after considering the blade load were presented to the latter in just three days. As usual, Zhang Zhenhua reported with the calculation results: Mr. Chang, after adding the workload to the calculation conditions according to your requirements, the performance of the entire fan, especially the stage pressure ratio and working stability, has undergone fundamental changes. But... after all, we only speculated on a workload and blade material, so the specific index data calculated is still not ideal. Chang Haonan opened the calculation results and glanced at them briefly: The problem is not big, at least in terms of trends, it has proven that my previous speculation was correct. The British are pre-deforming the fan blades, which is enough. Unexpectedly... Comrade Bingda really gave me a surprise when he went to England this time. For him, the focus is on the performance improvement after deformation caused by the application of working loads itself. As for the specific improvement, it is not that important when a lot of information can only be speculated or even blindly guessed. Just tracking the research progress of foreign colleagues. Its not really about design. After a brief pause, Chang Haonan continued: I estimate that the reason why the British handed over part of the data so confidently is because they are sure that we will most likely not be able to see the secret. If some parameters are copied rashly, it will have the opposite effect. And to say the least, even if this data is leaked, it will not be of direct significance Having said this, he smiled and shook his head. With the British character, he should have thought of this a long time ago. ?However, Zhang Zhenhuas expression was quite serious. In other words, he has been in a low mood since he reported the calculation results just now. So this is... the antithesis of the fluid-structure interaction problem? He asked with a rather nervous expression. ?This peculiar way of expression made Chang Haonan think for a moment, but finally nodded: If I have to say it, its true. "Because the numerical solution process is half a black box, it is a bit like the account number and password in a network database. When the algorithm is unknown, even if we have encryption in hand, that is, the data after pre-deformation design, No valuable information can be recovered. "However, this is not what Zhang Zhenhua is concerned about. After receiving Chang Haonans affirmative reply, he almost stood up in excitement: But...how could they do it? The internal flow design of an aircraft engine is much more complicated than that of an aircraft wing. Whether it is CFD or CSM, in fact, humans have not fully studied the theory... or even to exaggerate, at the theoretical level, it is just an entry-level problem. In a field like this, not to mention the inverse proposition, even fluid-structure interaction itself was proposed as early as 1933. As a result, it was not until 1991 that someone used semi-implicit and semi-explicit methods to solve the problem. A system of fluid-structure coupling equations. As for using the space finite element method to discrete fluid-solid coupling model equations with time discontinuous stabilization to solve the flow problem of viscous fluid around a two-dimensional structure, it was after Chang Haonan was reborn that he combined the experience of two generations of predecessors and systematic With help, it finally came true. The systematic use of fluid-structure coupling ideas to solve buckling and large deformation problems of three-dimensional structures is a new function that has only been available since version TORCH Multiphysics 2.0. Of course, the earlier NUMECA can also perform calculations under some special circumstances. As a result, only a year ago, the British began to reverse the operation and use the working blade shape to reversely process the blade shape? This situation really hit Zhang Zhenhua hard. ?There is a kind of thing that took a lot of effort, and finally changed from being unreachable to being far behind, and it seems that it is possible to keep pace with it. As a result, the opponent suddenly accelerated and no one could be seen again. ?This kind of blow is indeed serious. ?However, Chang Haonan is still relatively calm: Actually they may not have done it. ?As he answered, he tapped his pen on the table unconsciously, apparently thinking: I can only say that this may be the British idea, but the idea may not be realized. "Um?" The shock in Zhang Zhenhuas eyes gradually turned into confusion. You know, aviation engines do not only have a few typical working conditions, and the biggest difficulty in structural pre-deformation design is that it needs to provide at least an acceptable degree of deformation for each working condition... ?Chang Haonan worked hard to organize the language and try to make his description as simple as possible: In other words, if we really want to achieve a thorough and successful structural pre-deformation design, we will not just select a few working points to optimize them, but we must interact with the flow field change information in the fluid domain and the structural deformation information in the solid domain. Exchange transfer, calculate the structural dynamics equation under the action of generalized force, and obtain the deformation caused by unsteady aerodynamic force through the nonlinear transient response analysis of the structure through modal superposition, thereby predicting the anti-torsion blade shape..." "Even if you only consider centrifugal force, this process is quite complicated in theory, not to mention aerodynamics and temperature. Frankly speaking, almost all existing engineering methods were developed by me, so I can make a bold judgment. It would be almost impossible to accomplish without completely new theoretical tools So I estimate that Rolls-Royce will eventually return to the traditional rigid blade design. ?Chang Haonan, as a professional engineer, naturally has to dare to make judgments. Besides, whether it was the F135 or F136 of the previous generation, they finally switched back to the traditional rigid design. It shows that at least at this point in time, Luo Luo does not have the ability to solve the problem. ?After listening to Chang Haonans analysis, Zhang Zhenhua recovered a lot from the shock he had just received. But I still have some doubts: But Mr. Chang, if this is really a fan developed for F135 or F136, then according to the plan, the JSF project will first fly in 2005 and enter service in 2008. How can the British have time to go back and forth like this? Hearing this question, Chang Haonan almost laughed out loud. He knows very well that there are countless abstract activities in the entire JSF project. Until his rebirth, the latest news from Lockheed Martin is that they have abandoned the complete technical state, which is the block 4 batch of F35. In other words - There are some problems that we cannot change no matter what, so you can make do with it... Dont worry, I can make a bet with you. ?Chang Haonan held back his smile and said to Zhang Zhenhua: Let alone 2008, the JSF project will not be able to form complete mission capabilities in another ten years by 2018. As for this structural pre-deformation design He thought for a moment, then continued: On the British side, Im afraid they will only be able to stay on PPT for a long time (End of this chapter) Chapter 1075 Go abroad and go to the world Chapter 1075 Going abroad and going to the world ? Zhang Zhenhua did not directly respond to Chang Haonans statement. ??However, judging from his expression, it is obvious that he is still a little doubtful. What, you dont believe it? Chang Haonan asked half-jokingly. Actually, he also knows. It is normal not to believe it. ??Although the United States in this life has been experiencing ebb and flow, it does not seem that powerful and invincible. But no matter what, he still deserves to be called a powerful enemy. At this point in 2003, the general view was that Americas world leadership would continue to be significantly challenged until at least the middle of the 21st century. Who would have thought that 20 years later it would be on the verge of collapse. After hearing Chang Haonans question, Zhang Zhenhua simply expressed his thoughts: "Normally speaking, the previous ATF plans (that is, YF22 and YF23) were more difficult to develop and were older. Although the F22 has not completed all tests yet, it seems that the timetable for entering service in 2005 should still be achievable. "The positioning of the JSF project itself is to focus on multi-purpose ground strikes. The requirements in all aspects, especially in terms of stealth and mobility, are not as demanding as those of ATF. Many specific subsystems can even benefit from latecomer dividends. For example, Pratt & Whitney''s F135 engine actually directly uses the core engine of the F119. From any point of view, the development difficulty should be smaller, right? " "Even if the lift fans from the British side are a bit too radical, in order to do structural pre-deformation design, the optimal shape must be found in advance. The worst-case scenario is to regress the technology to a certain process in the middle. This may affect the progress of the vertical takeoff and landing model, but the F35B''s schedule is originally later than the other two models..." In fact, logically speaking, this analysis should be correct. Even taking into account the additional troubles caused by the three-type universal, the overall development difficulty of the F35 is significantly lower than that of the F22. But there are some things that it doesnt make sense to you. For example, the amount of program code for the F35 was too large, and the most critical period of development coincided with the bursting of the Internet bubble. As a result, the United States could not find an independent contractor to complete the huge code base of this model. In desperation, most of the code had to be written by The original planned Ada language was converted to C language, and then split and outsourced to multiple different companies for development. ? Anyone who has ever done a project can guess how much trouble this kind of operation will bring in the later stage. It was also during this period that Indian engineers and executives began to enter Silicon Valley in large numbers, and companies run by Indians followed closely behind, occupying the vast majority of the code subcontracting market at extremely low prices. ?So, its logical. A considerable part of the core code of F35 was actually written by Indians. By the time Lockheed Martin discovered that there were problems between these codes and wanted to go back and make repairs, the companies that had taken the order had long since disappeared and had to find another contractor to make repairs... To sum it up, its Thats great, Hayek. ?Of course, these details have either not happened yet or have not been made public, and Chang Haonan certainly cannot say them directly. ??Had no choice but to choose a more roundabout way: The JSF project is not just a technical or military issue. "In addition to meeting the U.S. military''s needs for fourth-generation multi-purpose fighter jets, it is also very important to bring Europeans in for joint research and development, completely killing the possibility of European countries independently developing a new generation of fighter jets... This plan is successful. Thats good, but once there are too many stakeholders involved in a project, technology is often no longer the main factor... You should have experienced this, Lao Zhang, and trouble will inevitably occur in the end. "If nothing else, today the British dare to secretly ask us to help complete core subsystems such as lift fans, but tomorrow they will dare to ask the Russians to buy titanium alloy substrates, or even ask Indians to help write flight control programs. ? ?This speculation is inevitably a slippery slope. After all, "looking for Indians to help develop flight control" is obviously not suitable to be juxtaposed with the previous two. ?However, this meeting between the two was just a small talk. Zhang Zhenhua thought for a moment and did not continue to refute. Instead, after pondering for a while, he suddenly returned to the topic: Speaking of which, Mr. Chang, since you are sure that the British cannot proceed with this technical route, then the contract they offered...should we agree to it? Agree, of course I agree! ?Chang Haonan even tapped the table: Its just that a clause must be clearly added to the terms, that is, if the design of the fan changes in the future due to reasons that are not our responsibility, then the contract must be extended by default, and the new plan will need to be paid again. This is definitely a reasonable request. ?Furthermore, the British themselves are also Party B of the JSF project. Even if there are losses, they will not bear the bulk of the losses in the end. Then Ill contact Comrade Bingda right away Zhang Zhenhua immediately prepared to stand up. But he was stopped by Chang Haonan from behind: "etc" The former had half raised his buttocks and sat back down. Remember to talk to Comrade Bingda and say that we can consider acquiring a company within the EU specifically to complete this transaction. This somewhat sudden addition made Zhang Zhenhua confused for a moment: Buy a company? Continue to follow the Trent 900 plan and go through the Ciro Group Chang Haonan waved his hand, lowered his voice slightly and explained: "On the one hand, although half of the Ciro Group is owned by Rolls-Royce, it is still registered in our country after all. It is basically enough for an enterprise of this nature to deceive the media and Party A users on civilian models, but If we want to get involved in a core NATO project led by the United States like JSF, Im afraid its still not ready. Its better for us to hold a controlling stake in a small European company in a more hidden way... ? ? ? On the other hand, after these years of development, our relationship with the European market has improved. We are getting closer and closer, and it is time to consider taking the initiative to go out. Sometimes, it will indeed be easier to operate with a layer of EU clothes..." Hearing this, Zhang Zhenhuas eyes suddenly lit up: I heard that the Italian company AvioAero seems to be seeking new investment recently. Is it possible to consider... Since 1997, Huaxia has established very deep cooperative relationships with many Italian companies, especially Finmeccanica. To this day, after experiencing cooperation on multiple models such as MA60, AC139, and NH90, both parties have formed some path dependencies - To a certain extent, this is not a derogatory term. When the external environment is stable, having a path to rely on is not necessarily a bad thing. After all, Italy is a founding member of the European Union and the Euro, as well as one of the Schengen countries. No matter how unsatisfactory it is economically, it still has a higher status than those Central and Eastern European countries that later joined the EU. Or rather, it is precisely because it is not very successful economically that it is easier for China to become a springboard for China to enter the EU market. ?However, when it comes to the specific company AvioAero, it really doesnt meet the requirements. So after a moment of hesitation, Chang Haonan still gave a negative answer: "Although AvioAero occupies a small share in the aviation industry, it is well-known as a gas turbine giant and is not suitable for our first overseas venture. Moreover, there are rumors that General Electric is seeking to acquire AvioAero''s aviation department. At this juncture, It seems inappropriate to compete with them..." The F136 engine is a model jointly developed by Rolls-Royce and General Electric. When GE took a look, it discovered that a company it had failed to acquire had become a supplier of core subsystems. ?That is not a problem that can be solved by turning a blind eye... Soon, Ren Bingda, who had been waiting in the UK for more than half a month and was feeling numb, finally received feedback from the country. ?Of course, because there was a lot of content, his two subordinates took it there personally. To sum up, it can be agreed, but a few more conditions need to be attached. He took a brief look and found that these conditions were not excessive. Its more of a disclaimer than a requirement. ?Hence, he quickly added new content based on the previous protocol version, and then found Panos Watson again. ?This time, Watson and Professor Elinor were the only two people in Watson''s office. Tim Purdy, who had been in contact with China until now, was nowhere to be seen. Seemingly noticing Ren Bingdas confused eyes, Watson took the initiative to explain: Thanks to our... close cooperation, Director Bodi has returned to France to start negotiations with Airbus for the air test of the Trent 900 project, and the final results should be announced soon... The test accident of the Trent 900 is an internal problem of Rolls-Royce. Therefore, although the investigation report has not yet been finalized, at least it will not affect the normal development of subsequent work until it is actually installed and tested. "I see" ?Ren Bingda nodded: Then I hope the next work goes well... ? He ??didn''t care about the other party''s spring and autumn style of describing the accident investigation as "cooperation". Huaxia has already gained a lot of benefits in this wave, and it is acceptable to give in in terms of face. Immediately afterwards, Ren Bingda turned around and signaled to Jin Xu, handing the revised agreement to Watson: "My superiors agreed in principle to the new cooperation project. Of course, they also approved the accident investigation results we submitted. If there are no problems, then we can choose a time to sign the cooperation agreement and the final Investigation report ?Of course, Luo Luo is not a grassroots team. ?It is impossible for two people to make a decision on the spot as soon as they put it together. Therefore, Ren Bingda did not stay too long. After confirming that he had left, Elinor quickly made a phone call. ?Less than a minute later, another middle-aged man who was slightly older came in hurriedly. Director Hartman, these are the conditions given by China. Please take a look. ? Watson gestured towards the agreement on his desk. Of course Im relieved that you two can agree on the result Hartmann said this, but he still opened the agreement in his hands smoothly. Soon, his expression became visibly relaxed, and he obviously had no objection to the content. ?Even, there was a bit of joking in the tone: Even the white gloves are ready... It seems that they... or you, are very skilled in this operation..." Watson waved his hands modestly: Businesseach other. For a time, a happy air filled the office... (End of this chapter) Chapter 1076 F136 Critical Design Review Chapter 1076 Critical Design Review of F136 In fact, even in the eyes of Watson and Elinor, Hartmann''s introduction of Chinese technology into the core subsystem of the F136 project should be quite a tightrope operation. Hence, it should be done in a very cautious manner. But the actual situation completely exceeded their expectations... Just three days later. The other side of the Atlantic Ocean. Maryland, Montgomery County, Bethesda. ??In a conference room at the Lockheed Martin headquarters, a small-scale meeting with a slightly tense atmosphere was taking place. ?Sitting gloomily at the head of the conference table is John Schwartz, the technical director of the Joint Strike Fighter project. A few days ago, Pratt & Whitneys F135-PW-100 engine has passed the key design review. It is expected to complete the assembly of the first production engine in September this year and start testing before the end of the year. ?Schwartz finished reading the report in front of him leisurely, then raised his head and looked at several executive-level R&D personnel from General Electric and Rolls-Royce in front of him: Everyone, as far as the entire project is concerned, the JSF is progressing very smoothly, but the F136 as a backup power option has been unable to pass the third phase of critical design review... He did not continue. But the meaning is very clear. Just very dissatisfied with the current progress of F136. But... Mr. Schwartz, wasnt the F136 system development and demonstration phase (SDD, the fourth phase in the American development process) contract originally expected to be signed before the end of 2005? ?Daniel McCormick, who is responsible for the JSF power project at General Electric, only feels a little numb. This is completely different from what we said before. F136 originally had a series of black technologies including variable circulation, pre-deformation design, and permanent magnet power generation system. If you can complete the project according to the original plan, you can already burn high incense. ??Now he suddenly wants to advance the time node by two years, which is simply killing him. Furthermore, it is not in compliance with the previous contract. But Schwarz shook his head: I also hope that a promising project like the F136 can be continued, but the Department of Defense and the Congressional Accountability Office want to continue. They believe that the F136 program is too cost-effective and therefore request that further funding for replacement engines be stopped. Unless we can clearly achieve the new project node before October this year, it may be difficult to obtain project funding for the next 2005-2007 years. ?McMcMick frowned immediately after hearing the name of the Congressional Accountability Office. On the one hand, this department is indeed powerful. And they have the power base to cut off their source of funding. on the other hand ??Also saw the contradiction in Schwarzs words. The Accountability Bureau is not a department that has nothing to do every day, and it simply does not have that much energy to focus on secondary projects. ?Their audit object will only be JSF itself, and will not single out the F136 or F135 engines alone. In other words, if the JSF project was progressing very smoothly as Schwartz said, the Accountability Office would not pay attention to it at all. In comparison, it is more likely that JSF itself has already had big problems at the audit level. ??The kind that even makes Loma lose face. Of course, it is impossible for anyone to be responsible. But you have to do something, at least to make it look good. The F136, which was originally used as a backup and had a high probability of becoming a gold-eating beast, became an "acceptable" victim for both parties. ??Anyway, everything seems to be going well with F135 now, so it doesnt hurt to not need F136 as a backup. ?It can also save a lot of money on paper, so that the JSF project will no longer be in danger of overspending in a short period of time. As for reaching a clear project node before October... Its just a nice way to say it Its already May now. In terms of the efficiency of the JSF project, the review itself will take two to three months. In other words, they have to complete all preparations for the third phase of critical design review by August at the latest... Why dont you go to heaven? But the problem is that the YF120 produced by General Electric in the ATF project has failed. You should know that civil aviation power does not require variable cycle technology that takes into account both supersonic and subsonic operating conditions. Europe has no plans to develop a new generation of fighter jets in the foreseeable future. Therefore, if the F136 collapses again, all the research and development efforts they have invested in the field of natural variable circulation will basically be in vain. ?Perhaps General Electric, a big company with a big business, can bear this loss. But McCann, as the project director, absolutely cannot. F136 is gone, and even if he is not unemployed, there is a high probability that he will no longer have any future. For a time, the air in the entire conference room almost solidified. ?However, just as McCann was preparing to argue in accordance with the agreement, Neil Brown, the JSF project manager from partner Rolls-Royce, signaled to him to calm down for the time being. ?This made the former hesitate for a while ?Brown is a project manager at JSF. Not the project manager for the F136 engine. There is not much difference between the two positions at GE. But it is completely different in Luoluo. Because the lift fan of the F135 is also designed by Rolls-Royce. In other words, for Brown himself, no matter what the result of JSF''s power selection is, he can be on the winning side in the end. Its nothing more than a big win or a small win. So the interests of the two people are actually not completely consistent. However, in the end, considering that it was not a good idea to confront Party A head-on, McCormick chose to accept Brown''s suggestion for the time being, saying that he would recommend to the company to speed up the development process of the F136 and strive to complete the key design review before October. After leaving Lockheed Martin and boarding the business jet back to Evendale, McCormick still couldn''t hold back and spoke highly of Schwartz with fierce words from a distance. ?But an explosion is an explosion, and in the end it can only be done out of anger. It does not really help solve the problem. ?At this moment, Neil Brown took the initiative to come opposite him: Dan, we have to do something before October. He said straight to the point. ?At this time, McCann''s mentality was about to collapse, and he stopped being secretive: Dont think I dont know, Neil, even if the F136 project is cancelled, you can still make a lot of money in JSF, right? ?The other party did not deny it: Indeed. ?Brown replied: But we have also invested 40% of our research and development resources on the F136. It is impossible to watch this model suddenly die suddenly. "Can" ?McMcMick''s words stopped abruptly. ? He ??suddenly realized that the reason why the other party showed such a calm look was probably not, at least not just because he was stepping on two boats at the same time: Do you have any idea? Schwarz made it very clear. Brown turned his head and looked through the porthole at the increasingly smaller airport buildings below: As long as we pass the critical design review by October, there is no chance of losing funding before 2007. A few days ago, Tom Hartman, the director responsible for the design of the F136, reported to me that he had found a way to use permanent magnet power generation technology on the F136. ?McMcMick was delighted at first, and then felt something was not right. ??If the problem could be solved so quickly, there would be no need for Luoluo to delay it for so long before. So, he almost subconsciously asked: What can be done? Dont worry about it. ?Browns tight-lipped tone is more likely because he doesnt fully understand: In short, it is expected that a specific design plan will be available soon... As for the natural variable cycle and pre-deformed blades, it is not difficult to implement at least on paper. The so-called critical design review is somewhat similar to the design plan demonstration. There is no need to build a real thing. The first principle prototype will not be produced until the system development and demonstration stage. As for the prototype, it will be even later. McCann, who is also a veteran, felt that something must be wrong, but he couldn''t pay attention to too many details in this situation, so he could only focus on the main contradiction: But didnt you hear what Schwartz meant just now? He asked somewhat eagerly: The time point is obviously just an excuse. The point is probably that the Ministry of National Defense doesnt want the backup model F136 at all. Even if we survive this time, sooner or later we will find other reasons to kill it! Of course I heard it Brown shrugged indifferently: So, our next goal is not to actually design the F136. Ah? The people of McCannmick were stunned. ?Brown patted the old mans shoulder lightly: Delay time, get as many rounds of funds as possible, and then find a way to stop the loss... (End of this chapter) Chapter 1077 The goal is global airworthiness Chapter 1077 The goal is global airworthiness Almost at the same time, Brown and McCann were worrying about the F136 engine and even the entire natural cycle technology route. Huaxia, Haojing. Although it is almost nightfall, the headquarters building of Haofa Group is still brightly lit. ?After successively finalizing several large cooperation orders with Europe, Haofa, or the entire aerospace power group, has finally completed all preparations before the establishment of the Turbofan 20 project. Today is the day when project approval officially begins Complete project establishment work requires the examination of a large number of technical and feasibility study documents. It is actually a quite boring task and cannot be completed in three or two days. Therefore, what is going on now is just a launching ceremony, with Chang Haonan briefly introducing the project situation and the overall technical plan. Of course, the Turbofan 20 is the model that Chang Haonan personally took charge of after two years. ?Hence, it is not difficult to predict that the specifications will definitely be full. At least it will be much higher than the QC300 a year ago. ?But foresight is foresight. Chang Haonan was still a little surprised when he actually saw the list of experts and leaders attending today. Researchers related to aerodynamics, engineering control and materials science are not to mention. At the Industrial and Construction Committee level, Li Zhongyi, who had just officially taken office, attended in person. And, higher-level leaders in charge of the development of high-tech industries were also present. ?Although the other party said that he would only listen and not express any opinions, he asked Chang Haonan and others not to put too much pressure on them. But coming here to show up at this juncture itself represents the attention from the top. Or support. Correspondingly, the General Armament Department, which had more dealings with Chang Haonan in the past, only sent a delegation of average level and size this time. ? It is not difficult to see that the military attributes of the turbofan 20 are deliberately weakened. But this is also a real hardship for the comrades in charge of arranging conference affairs. ?When Chang Haonan checked the final plan the day before, he found that even several academicians were not assigned a seat next to the conference table... In the list, Chang Haonan also saw a name that was completely unexpected. His mentor, Du Yishan. Although academicians, especially senior academicians, mostly retire unless they have physical reasons. But maybe its because he did bring out a more up-to-date close disciple. In short, Du Yishan did live in seclusion after leaving the front line. Rarely participate in such official level activities anymore. Even people like Chang Haonan and Liu Hongbo often had their requests to visit unless it was a holiday. ??Now that he appears in Haojing, he may have been specially invited by his superiors. "teacher." ?After greeting the senior leaders, Chang Haonan looked around at the door for a long time before waiting for Du Yishan, who was surrounded by several staff members. ?Then he quickly stepped forward to help the other person sit down. But the latter raised his hand and refused: "Okay, okay, I''m not too old to walk..." As he spoke, he even sped up his pace. Actually, what Du Yishan said was a bit modest After retiring, he looks much younger than before. I can only say that even at the level of an academician, the work is indeed quite torturous... ?After some pleasantries with acquaintances present, Du Yishan finally sat in the seat assigned to him. Chang Haonan was also able to use the excuse of "accompanying the teacher" to take a break and relax for a while. Teacher, to be honest, I didnt even expect you to come out in person. ?While placing the cup with tea in front of Du Yishan, he said with some emotion: Although its only been four years since I graduated, I feel like I havent seen you in a venue like this for a long time. Its not really a debut... You should have seen the list. I am actually not in the project review team. I am only present as an invited expert. In fact, I dont deserve to sit in such a high position..." ?Du Yishan took a sip of water slowly, and then said in a half-joking tone: I guess the higher-ups cant think of anyone else who can review your project... When the Turbofan 10 project was approved, you made it a live lecture. Before setting off from the capital this time, Lao Ding also told me that he wanted to know what other tricks the turbofan 20 could do... Chang Haonan was a little uncomfortable hearing Ding Gaoheng''s name suddenly in this context. ?But after thinking about it, it makes sense. ?After handing over the director position to Li Zhongyi, Ding Gaoheng took up a casual position and waited for his retirement in two years. ??Although as an academician-level expert, you can still find reasons to come if you really want to participate. ?But this is after all a critical and sensitive stage of organizational reorganization, and Turbofan 20 is the first key project handled by the new unit of the Industrial Construction Commission after it was established. If he, the "old leader" who had just stepped down, appeared at the same time as Li Zhongyi, there is no guarantee that people would not think too much of him. ?However, Chang Haonan still gave it a try: You should know later At seven o''clock that night, the launching ceremony officially began. With Chang Haonan''s current status in the world, there is no need to be overly polite. Therefore, he just gave a brief welcome speech, and then quickly got to the point: "Everyone, the turbofan 10 has been put into mass production for more than a year since it completed the production and finalization evaluation at the beginning of last year. Including the previous small batch trial production, a total of 127 units have been put into use, with a safe flight time of more than 100,000 hours, without causing any The third-class or above flight accident has received unanimous praise from Party A and customers..." "At the same time, our group has also cooperated with foreign companies in the past two years to successfully develop the SeA650 turbofan engine with a medium bypass ratio. It has been equipped on the Falcon 8Z business jet for test flights, and has undertaken the Rolls-Royce Part of the production business of Royce''s Trent 900 engine turbine components and accessories, it has accumulated certain experience in civil engines..." In addition, it is worth mentioning that not long ago, we also helped to identify the cause of an accident related to the prospects of the Trent 900 project. Not only were we exposed to many cutting-edge design ideas in the process, but we also further improved our countrys international reputation. The right to speak in the aviation manufacturing industry. These words are not only a background introduction, but also a summary of the work of the Aerospace Power Group since its establishment. ?Although everyone here is aware of and even participated in everything. But when these results were summarized by Chang Haonan and listed together on the PPT, it still brought an immeasurable shock ?Unconsciously, China has become equal to international aviation giants like Rolls-Royce in some fields. So much so that when he finished speaking a long paragraph and paused to take a sip of water, the gasps of everyone could be heard quietly in the huge conference room. ?It wasnt until Chang Haonan opened the lid of the cup and there was a clicking sound that the first person reacted and started applauding. Suddenly, it was like a switch was turned on. Thunderous applause resounded throughout the entire venue in an instant. In the end, Chang Haonan had to raise his hand and press it down to cool down the atmosphere in the entire venue again: "In this context, we believe that we are fully qualified to rely on the relatively mature core engine of the Turbofan 10 to develop a large bypass ratio turbofan engine with a thrust between 12-14 tons and mainly used for passenger aircraft and transport aircraft. The Group The layer is temporarily named AE1500..." Here, he specifically used the name he had discussed with Lan Xinzhi before. Mainly for rigor. In fact, names such as turbofan XX and turboshaft XX should be given to the equipment by the users, that is, the troops. ?However, because for a long time, China''s aviation manufacturing industry has been specialized in aviation, so these names have gradually been accepted by manufacturers. Later on, the names of models such as the Turbofan 10 and the Turbojet 14 were already decided for the users even at the beginning of the project. Both sides dont think there is any problem. But with the development of the industry, it has become clear that China Aviation Developments users are no longer only the military. Then when establishing a project, there should also be a commercial model name assigned by the manufacturer. As for Turbofan 20, it should be formally determined after the aviation force passes the acceptance test. ?Of course, in todays meeting, these parts can only be regarded as details. Because when Chang Haonan announced the name of AE1500, the goal he set for this model was also projected on the curtain in front. Suddenly there was a burst of exclamation in the scene. At the top of the list is naturally thrust. The sea level thrust of the basic model is 13500kgf, which can be adjusted from 11500kgf to 14500kgf according to different sub-models. For the target installation target, it is considered to be at a satisfactory level. ?However, the focus of large bypass ratio turbofans is not originally here. What really exceeded the expectations of the big guys was another table further down. Considering the difficulty of research and development, testing, mass production, and gaining market acceptance, AE1500 should be benchmarked against similar products of the 2010s in advance to ensure that it does not fall behind in future competition. Therefore, compared with the current benchmark model CFM56-7B engine, the AE1500 plans to reduce fuel consumption during cruising by 10%, reduce noise by 6dB, and reduce carbon dioxide and nitrogen oxide emissions by 25% and 40% respectively Compared to the data themselves, what is more surprising is the focus of this model. As if seeing everyones confusion, Chang Haonan explained: As a model for the commercial market, in addition to the hard indicators we traditionally focus on, factors at the international aviation policy level must also be taken into consideration. Since the end of the last century, Europe and the United States have gradually tightened regulations in the field of aircraft emissions. This is of course for environmental protection, but on the other hand, it is also setting up additional obstacles for latecomers like us..." When he said this, Du Yishan in the audience suddenly guessed his disciples goal this time Obtain global airworthiness certification! (End of this chapter) Chapter 1078 We can also play the environmental prote Chapter 1078: We can also play the environmental protection card Sure enough, just as Du Yishan guessed. Chang Haonan almost immediately announced his long-term goal of obtaining EASA and FAA airworthiness certification for the AE1500. If we say that at the beginning of the meeting, he caused silence in the audience because of his achievements. ?Now, ambition has caused an uproar. China did achieve mutual recognition of airworthiness with the EU and the United States in 1997 and 1998 respectively. This is also the main reason why SeA650 and Falcon 8Z can enter the international market without any obstacles. Including the MA60, it also occupies a considerable market share in the short-haul aviation field due to its quietness and low cost. Not only third world countries, but also entered the aviation market of several Central and Eastern European countries. Even the Tu 334 has sold dozens of aircraft by relying on the C808 reskin. Objectively, it helped Tupolev, who was on the verge of bankruptcy. However, C909/Figure 214 failed to obtain European and American airworthiness certification. At present, there are still only two producing countries and a few users sanctioned by the West. After all, the above are all subject to strict restrictions. The take-off weight is not more than 50 tons, and the maximum passenger capacity is not more than 100 seats. That is, regional aircraft and business jets, as well as corresponding supporting subsystems. This part of the market is not mainstream in the entire aviation industry. ?In this regard, it was Chang Haonan who grasped a key point in the competition between Europe and the United States, and managed to win it with great difficulty. But the AE1500 is a different story entirely. Thrust range of 11.5-14.5 tons. ?Everyone knows that this is designed for mainline airliners. ??Moreover, it is a mainline passenger aircraft of the Boeing 737/Airbus A320 level ?Although it is not as dazzling in size as giants such as Boeing 747 or Airbus A380. However, judging from the proportion of output, it belongs to the absolute backbone of the air transportation industry. It is also the most important source of profits for the two major aviation companies, Boeing and Airbus. Although China has not yet announced its research and development plan for this level of passenger aircraft. But now that you are applying for airworthiness certification for the AE1500, you are obviously preparing to steal the cake from your peers. Grab the biggest piece as soon as it comes up. How could EASA and FAA relent so easily? But then again. ?If this goal can really be achieved, even if it is not the mutual recognition of airworthiness as before, the benefits it will bring will be almost incalculable. On the one hand, the AE1500 itself is very competitive. If it can be put into large-scale commercial use around 2010, it will occupy a significant position within a time window of several years, in other words, before the next generation products of competitors are put into service. Performance advantages. ??If there are no airworthiness issues, then Airbus and Boeing may really dare to install it on aircraft. After all, if the capitalists are anxious, they can even sell their own hoisting ropes and install them as Chinese engines, so thats not a big problem. On the other hand, it is also more important. This will be a leap from zero to one. Once the AE1500 passes airworthiness certification, it will be much easier for China to build a passenger aircraft equipped with an AE1500 engine and pass the certification. ?That will truly be the spring of Chinas aviation manufacturing industry. Therefore, even the leader who stated "not to express any opinions" before the meeting could not help but start a few discussions with a few people around him. Later, he probably remembered his previous promise and quickly shut up. ?Chang Haonan also deliberately did not continue immediately, but listened specifically. Generally speaking, there are people with different attitudes on the scene. But most people, including Li Zhongyi, still feel that the prospects are not optimistic. ?However, even though he said this, the sharp-eyed Chang Haonan still noticed that the words "global airworthiness" were circled in a big circle on the other party''s notebook. Obviously I have some thoughts in mind. ??Its just that as the newly succeeded head of the Industrial and Construction Committee, its not easy to draw too radical a pie right away... Of course, it was a meeting after all, and it was impossible for everyone to completely leave Chang Haonan aside. So after a few minutes, the noisy conference room gradually became quiet. Comrade Haonan. This time, the question is from Liu Zhenxiang: Are there factors that are too uncontrollable about this goal? In fact, Liu Zhenxiang himself is quite optimistic about Chang Haonan''s goal. The reason why I ask this is because there is really no other way ?Among the people sitting at the scene, he was the only one qualified to raise such a question to Chang Haonan in the field of aviation development. And of course the latter also knows that this is part of the normal process. After all, when setting up a project and starting work, you have to ask questions. It cannot end peacefully and happily. Hence, he was already prepared for this: First of all, regarding uncontrollable factors...it is indeed foreseeable that neither EASA nor FAA can easily pass airworthiness certification, so I set it as a medium- and long-term goal. As I said at the beginning of the meeting, our country is gradually and deeply participating in international aviation industry cooperation and gradually occupying an upstream position. Although it will be difficult to shake the core voice of Europe and the United States in a short period of time, have been able to exert some limited influence. In addition, it is foreseeable that in the next few years, Western countries will become more and more inclined to exert their efforts in the field of environmental protection, and we can follow this trend and not only not stop it, but actively push it to the extreme, so as to Operationally, it is to introduce or announce stricter emission policies than those in Europe and the United States, which in turn will restrict their products from entering the Chinese market and ultimately force them to compromise. " "Of course, if you want to enter the European and American certification market, you can''t be alone. The good news is that we have reached a relatively good cooperative relationship with Rolls-Royce, and they have also lost 12- We are worried about the huge market of 14-ton class. If the British side agrees to provide support, then it does not rule out the possibility of introducing international cooperation in civilian models..." As for the initial period after finalization...I believe that the military and domestic civilian markets are enough to form a positive cycle of user data and business costs..." In fact, Chang Haonans idea is somewhat similar to the new energy vehicles in the previous timeline You play the environmental card, we can play it too. First, Europe took the lead in issuing policies, saying that it would restrict or even completely ban the sale of fuel vehicles. ?Although anyone with a discerning eye knows that this is impossible, there are still some people who really believe it. As a result, European car companies, which were slow to respond, lagged behind in this field and were overtaken by their Chinese counterparts. Even reversely promoted the development of China''s fuel vehicle technology. ? Even if they later come to their senses and start using non-market means to protect their markets. But on the one hand, at least the Chinese market has completely changed, ending the good days when foreign companies could make money just lying around. On the other hand, closing the market is tantamount to giving up the right to speak. From the perspective of industry development, it is tantamount to drinking poison to quench thirst. The specific situation in the aviation field is of course much more complicated. For example, users are mainly large airlines rather than private individuals, and the market is far more controlled and closed than the automotive industry. But the principle is actually the same. ??Moreover, Chang Haonan''s goal is relatively conservative, and he does not say that he will rely on the AE1500 to overturn the British and American models. Just want to participate in sharing the cake. ??Even planned to give Luo Luo a piece of it. The operability is still there. ?Of course, all this has a prerequisite. That is the aviation engine produced by China. Regardless of other performance, it must at least be more environmentally friendly than similar products in Europe and the United States. Otherwise, the last operation will be self-defeating and harm yourself. Therefore, Liu Zhenxiang quickly said: "So, at the technical level, although the CFM56-7B is already a model several years ago, as Comrade Haonan just said, it is still the performance benchmark for aviation engines of the same level. So... in basic disciplines such as materials science, in How can we achieve the indicators in the table just now when no significant breakthrough can be achieved in a short period of time? This question is actually a bit like giving a message to Chang Haonan. This is exactly what I want to introduce next... ??The latter smiled, and while answering, he came back to the back of the small podium and turned the PPT to the next page. The above is a 3D schematic diagram of a large bypass ratio aeroengine. We are going to learn from the ideas in the field of gas turbines and move the intercooling and heat recovery technology to aeroengines... Of course, strictly speaking, the intercooling system is first, and then the complete intercooling and heat recovery system! (End of this chapter) Chapter 1079 Ive figured it all out Chapter 1079 Ive figured it all out ?This picture Chang Haonan threw out made the scene quiet again. However, it did not last long. After all, a 3D diagram is just a diagram after all. Essentially, it is to illustrate the principle. Even many structural details have been simplified. You will understand it quickly. Compared with conventional turbofan engines, the most important change is the addition of an intercooling duct between the inner and outer ducts. As for the recuperator, because the purpose is to utilize the exhaust gas waste heat, the design location is much simpler. It can be installed directly behind the exhaust cone. Of course, although Chang Haonan drew this part separately in the picture, anyone with a discerning eye can see that the engineering must be combined with the inner wall of the tail nozzle. Otherwise, as a jet engine, designing an additional resistance structure in the tail nozzle would be too abstract. And in fact, although there is no mass production model yet, and it is not a turbofan engine, countries such as the United Kingdom and the United States have also designed designs to add recuperators to turboshaft/turboprop engines. ??This is not to say that Chang Haonan will definitely refer to foreign experience directly. Its just that everyone has a basic concept. The main problem is the intercooler. In the picture, it is only represented as a module of "intercooler unit". But almost everyone wants to know what plan Chang Haonan is going to use to implement it... When the topic transitioned from the overall plan to specific technical issues, the enthusiasm of the audience for speaking also gradually increased. ?For example, the first person to ask questions this time was an expert sitting slightly at the back of the conference room. ??Fan Jianren, a professor from Zhejiang University. In fact, his main research direction is not aviation development, but engineering thermophysics. The reason why I was invited here in the first place was largely because Academician Cen, a leading figure in the field of basic combustion, happened to be conducting research abroad, and there were really not many representatives in the fields of gas-solid multiphase flow and basic combustion. I thought it was just a formality, but I didnt expect that halfway through, I suddenly entered his professional field... Professor Chang. Even when Fan Jianren was asking questions, the movements recorded on his hand did not stop: "New generation gas turbines like the WR21, and of course my country''s QC300, all place the recuperator outside the main structure, and the main structure of the intercooler is divided into two parts, the inner and outer parts, and an ethylene glycol aqueous solution is used as the intermediate medium Realize the transfer of heat from the onboard intercooler to the external intercooler. But aero engines, even though large bypass ratio turbofan engines may be less sensitive to their own weight, the use environment still determines that they cannot install overly complex accessories outside the main structure, and if they are completely designed inside the engine... Speaking of this, he hesitated for a moment I am not a professional in aerospace design, so the next question seems to be like a layman questioning an expert. ??Moreover, I still question Chang Haonan, an expert with legendary experience. But having said this, it is impossible to stop halfway. The intercooling duct you left in the picture seems to only provide space for the cooling medium to flow, but does not leave room for the intercooler structure itself? As soon as Fan Jianren finished speaking, while Chang Haonan was still trying to organize his words, someone else immediately expressed his opinion: "Actually, given the characteristics of passenger aircraft and transport aircraft, it is not impossible to install part of the intercooler outside the aircraft engine... What I mean is that these types of aircraft have relatively ample space and do not have very strict aerodynamic shapes. Require." After finishing speaking, he perhaps felt that he was not convincing enough, so he specially added: And this can also improve the thrust-to-weight ratio of the turbofan 20 to a certain extent..." After all, this is just the launching ceremony for project approval, so the scene still has the meaning of a technical discussion. And this last point really touches the hearts of many people. No matter how exquisitely designed the intercooler and regenerator are, they are still extra dead weight. And Chinas push-to-weight ratio standards are basically close to the most honest legal standards, so all this weight will be added to the denominator. This is obviously not good news for on-paper performance. ?However, there were many people present, and their expressions changed immediately. Mainly comrades from the Haofei Group next door who are listening. ?Especially Liang Shaoxiu, his face turned pale The Y9 design has been going on for two years. Now the aerodynamic design has been basically completed, and the structural design has also entered the optimization stage, which is basically the end. ?Just wait to plug the PS90 or Turbofan 20 into the port that has been reserved for a long time, and you''re done. Now tell them that they need to set up another cooling and heat recovery equipment outside the aviation engine? What''s going on? But according to regulations, they can only be regarded as customer representatives, and their speech priority in the venue is not high. ?It is not a good idea to interrupt hastily. Therefore, for a while, the expressions on Liang Shaoxiu''s face flashed like a revolving lantern, which was very exciting. Fortunately, Chang Haonan on the stage did not think for too long. In fact, he understood the thinking of the person who expressed his stance very well. The commercialization of aviation development, and even the entire aviation industry, is a brand new topic for China. Although the aerospace power and aviation industries have been separated for four years, for most of the older generation, this has only improved the status of aerospace development projects. The idea of ????dedicated hair is still rooted in my mind. This is one of the current situations that Chang Haonan hopes to change through the AE1500 project. Professor Fan is right. ?The words of affirmation calmed down Fan Jianren, who was already a little nervous. Following that, he glanced in the direction of Liang Shaoxiu again: Placing some of the intercooling equipment outside the main structure can indeed minimize the difficulty of aircraft engine design, but this will greatly reduce the suitability of the engine, which will not only bring additional trouble to the aircraft design field, but is also detrimental to the aircraft design field. expand the market in the future. Also, we dont need to play with words to express the performance of the product In fact, Chang Haonan has been implementing such a principle since he first participated in Turbojet 14. Whether its publicity or air show. The aircraft engine performance he demonstrated was completely realistic and even deliberately restrained. ?This answer undoubtedly eliminates the worries about flying pickaxes. ?But on the other hand, Fan Jianrens problem just now still has the second half... After a brief pause, Chang Haonan continued to explain: In order to reduce the impact of installing an intercooler on the structure and flow path of the turbofan engine, we plan to structurally integrate the intercooler and the turbofan engine and transform the structure of the turbofan engine itself. At the same time, the PPT was turned to the next page. ?The above is a slightly abstract structure diagram: Considering that the intercooler must be installed after the fan and before the combustion chamber, the only thing in this part that has a relatively simple structure and can be significantly improved is the stator of the compressor... Therefore, my final plan is to divide the intercooler into multiple units and install them in the stator structure, add necessary accessory pipelines to connect the intercooler unit to the turbofan engine components, and install them outside the engine. A separate duct is designed in the channel to install the intercooler unit, and a partition-type heat exchanger is used to directly exchange heat between the cold and hot end airflow. " !! When he said this, almost all the audience members in the venue sat upright involuntarily ?The people who can sit in this meeting today, even the leaders in charge with non-professional backgrounds, cannot be pure laymen. ?Everyone knows that in order to meet the requirements of high boost ratio and wide surge margin, the blade structure and shape design of the compressor have almost reached their current limits. ?Furthermore, large bypass ratio turbofan engines do not need to consider supersonic operating conditions, so the boost ratio is almost literally the higher the better. This is not exactly the same as the design direction of the turbofan 10-core machine. ??Although Chang Haonan has added a fan to the AE1500 that is much larger than products of the same level, the design space left for the compressor is still not optimistic. ? And on this basis, he is actually planning to take further action on the stator? You should know that although the stator does not need to rotate at high speed or bear huge centrifugal force, the impact of airflow is not small, and the structure cannot be treated casually. Even though Chang Haonan has rich experience and strong strength in this area, he cannot violate the laws of physics. Although he has said before that he does not rule out cooperation with Rolls-Royce in order to obtain foreign markets. But the intercooling and heat recovery design is the core competitiveness of AE1500, even more core than the Trent 900 turbine. With Chang Haonan''s style, it is impossible to delegate this part to outsiders. Soon, some people raised concerns in this regard: Comrade Haonan, with our current material level, the design of the turbofan 10 is already quite extreme, and on this basis, to simultaneously optimize the structure and aerodynamics of the stator blades...is the risk too great? Liu Zhenxiang, who is sitting in the front row, has not yet spoken, but judging from his expression, he obviously has the same concerns. ?Of course, some people are confident and feel that Mr. Chang has already created enough miracles, and it is entirely possible to add one more. However, his next answer exceeded both parties expectations: Actuallythere is no need to specifically optimize aerodynamics "Um?" "ah?" Chang Haonan did not continue immediately, but took a sip of water slowly before explaining: I dont know if you remember, but I said when the Turbofan 10 project was established that the overall structure was originally designed in accordance with the standards of the fourth-generation engine, leaving room for adding a first-stage low-pressure compressor... and the first version The boost ratio of the solution is too high. In order to take into account high-speed performance, the boost ratio was specially lowered..." Including Liu Zhenxiang, the expressions on the faces of several senior experts in the front row gradually changed from confusion to shock, and then from shock to enlightenment. The matter of specifically lowering the boost ratio was indeed mentioned back then. However, in the case of Turbofan 10, this could only be regarded as an episode. ?Chang Haonan himself just said it casually. Therefore, most people really didnt think of it just now. But now that they have been reminded like this, everyone has finally come to terms with it ?So it turns out that your kid will be fine by then? (End of this chapter) Chapter 1080 Or we can only go back to the Chinese pe Chapter 1080 We still have no choice but to go back to find the Chinese people ??For those who have not participated in the turbofan 10 project establishment process that year, what Chang Haonan told can be said to be a horror story Co-authored the turbofan 10, which has reached the upper limit of mass-produced military aviation engines, or was it just someone else who stopped tinkering with it? Several big guys in the materials field are even more ashamed. ??Although Chang Haonan didn''t say it, everyone knew it was clear in their hearts. The reason why we had to make compromises on the basis of advanced structures and even carry out reverse optimization was largely due to the limitations of aviation materials. Although the field of materials, especially the field of composite materials, has made certain progress in recent years, it is obvious that compared with the needs of the application side, it is still somewhat behind... Jiang Fuhe, who was sitting in the second row, could only smile bitterly in response. It was Chang Haonan who almost suddenly came up with the design of the Turbofan 10, and even left enough room for the development of a fourth-generation engine in the future, which forced him and the Gas Turbine Research Institute to give up the high-promotion preliminary research at hand. project, turning to research on vertical take-off and landing technology. Although it can be regarded as a way out, everyone knows that China must use large aircraft carriers as the core of ocean warfare in the future. There is no all-out nuclear war during the Cold War, and there is no operational scenario that foresees the destruction of all airports. There is no single The Marine Corps as a branch of the military. The pure vertical take-off and landing model... can only be said to have an uncertain future. Of course, Institute 624 has not been sitting still in recent years, and has also conducted a lot of research on thrust vector nozzles and related control logic. But compared with the complete aircraft engine model, these are all details after all. Install the intercooler on the compressor stator Liu Zhenxiang, who was in the front row, whispered again: If I had heard this idea two hours ago, I would have called it whimsical But now, Im not so sure As he spoke, he smiled half bitterly and shook his head in relief. Just now, for a moment, he suddenly realized that it might be time for his generation to show off its remaining energy... ?But now is definitely not the time for emo. Hence, he quickly got over the initial shock. After all, it is a project preparation meeting, not a simple preliminary research. In addition to technical routes, there are also more specific issues that need to be discussed: Comrade Haonan, you just said that using a dividing wall heat exchanger for direct heat exchange of hot and cold end airflow, will this affect the heat recovery or even the efficiency of the film cooling system? This time, Chang Haonan nodded very simply: To a certain extent... it does. "Actually, my original plan was to use supercritical carbon dioxide as a heat exchange intermediate medium to transfer heat in the system... However, in principle, our research on the properties of supercritical fluids is not mature enough, so we rashly added There may be immeasurable risks in the system. "On the other hand, in engineering, driving the circulating flow of the intermediate medium requires external power input, and although carbon dioxide can easily reach a supercritical state, it also requires more than 75 atmospheric pressures, even much higher than the normal working pressure inside the turbine, and even more Needless to say, the compressor part has a relatively mild environment, so in order to ensure the structural integrity of the heat exchanger, additional metal tube walls of sufficient strength need to be installed..." "Although large-bypass-ratio aviation engines do not particularly pursue thrust-to-weight ratio, for the AE1500, a model with a thrust of less than 15 tons, it is still a bit difficult to fully accommodate such a set of things... In fact, in order to offset the current set of intercoolers " "That''s why I said before that at this stage, I plan to focus on the intercooler. As for the complete intercooler heat exchange equipment, it is more suitable for use in models with greater thrust. For example, 30 tons like the Trent 900 On top of the aircraft engine Its hard to say whether it was intentional or unintentional, but Chang Haonan revealed his greater ambitions at this time. AE1500 is definitely not the end... The project preparation meeting can only be regarded as the starting point of a huge project. In the following days, the expert group reviewed various documents and preparations prepared by Haofei Group in stages. Finally, on May 31, 2003, the Aerodynamic Groups AE1500 large bypass ratio turbofan engine project request was officially approved. ?Moreover, it is extremely rare that Comrade Chang Haonan serves as the chief engineer and chief designer at the same time, single-handedly taking charge of this model with high hopes. ?This seems to be seen as some kind of signal released after the establishment of the Industrial Construction Committee... In these days when Chang Haonan is gradually getting involved in new projects. Some of his previous arrangements are also being gradually tightened... France, Paris. Dassault Aviation Headquarters. Charles Edelsteiner was in his office, listening to his assistant report on the test flight of the Falcon 8Z prototype in the past month, as well as the test and publicity plans for the second half of the year. Overall, it went very smoothly. Except for a few test subjects that require meteorological conditions, the rest are basically completed once. Even the most optimistic timetable before, no one dared to think of this kind of scenario. So much so that this model may be put into commercial operation in late 2003 to early 2004. To this end, the project team even plans to conduct ultra-long-range tests for publicity purposes in advance. Of course, as part of the test flight project, it is certainly impossible to directly touch the ultimate range in one step. Therefore, the plan is to start with the 9,000-kilometer Paris-Los Angeles route and gradually increase the number to the final 12,000-kilometer Beijing-New York route. "etc" Hearing this, Ed Steiner suddenly interrupted: Cant Paris be used as the center of the flight test? Just take off from Paris and go to different destinations... ? He ??has always felt that the Chinese color in the Falcon Z project is a bit too strong. ?However, things have come to this point, and it is definitely impossible to get rid of China''s influence in technology. However, the French color of Falcon 8Z at the commercial level can be improved as much as possible. At least let the market realize that this is an aircraft belonging to Dassault. ?However, the assistant shook his head: "The mainstream routes of business jets are to a few regional central cities in the world. Paris is too close to these places...it is less than 9,000 kilometers to the west coast of the United States, and even to Asia and South Africa is less than 10,000 kilometers. For example, Sydney is too far away, more than 16,000 kilometers away..." ? Modern business activities, even after the United States replaced Britain as the new world hegemon, were still Eurocentric for a long time. ?This unique location feature is usually treated as an advantage, but today, it was a little joke on Ed Steiner. Just when he was about to say something more, a figure suddenly appeared at the door of the office. ? Ed Steiner raised his head and noticed that the person coming was Didier Casore, the head of Dassaults aerodynamics department and the person in charge of the overall design of the Falcon Z project. In the past half month or so, the other party has been in contact with the Ericsson team in Sweden according to his arrangements to verify the possibility of installing a complete "Ericeye" early warning system using the Falcon 8Z as a carrier aircraft. Now that he suddenly appears here, there is a high probability that there will be results. Considering that Falcon Z itself was almost certain, Ed Steiner thought for a moment and temporarily stopped communicating with his assistant. Then he quickly stood up and invited Casore outside the door. Didier, over there with the Swedes Ed Steiner asked anxiously before he even had time to sit back in his chair. But before he finished speaking, he stopped abruptly. Because, judging from the other partys expression, the result may not be optimistic. ?Sure enough, Casore opened his briefcase, took out a thick report, and placed it in front of Ed Steiner: From the perspective of payload weight alone, even the complete version of the Erieye system does not exceed 4.5 tons, and even the smaller Falcon 7Z can carry it. "But the antenna design proposed by Sweden is not optimistic. The balance beam antenna designed with an active phased array is quite large in size and weight. It is not a big problem for the lower-speed Saab 340 and 2000, but it needs to be To install it on our Falcon 8Z, I''m afraid it will require a major overhaul of the wing stabilizer design and most of the body structure..." However, considering that the main wing shape of the aircraft was optimized by China, if we can get their support, I think it wont take too long... ?Ed Steiner''s expression gradually became stiff. Especially when hearing the last sentence ?As Casore said, if it can get support from China, this improvement may not take too long. But the problem is, from the beginning, I wanted to find the Swedes to cooperate because I didnt want to be controlled by the Chinese? (End of this chapter) Chapter 1081 Almost ready-made solution Chapter 1081 Almost ready-made plan Although Ed Steiner wanted to avoid being overly controlled by China, he had never mentioned the real reason to anyone else. After all, for most ordinary workers, the first thing they pursue is the stability and low risk of the project. Therefore, faced with Kasore''s proposal, which was very reasonable on the surface, he certainly could not refuse it directly. ??Had no choice but to change the topic without leaving any trace: But...Ericsson launched a light early warning aircraft in 1997 based on the Brazilian ERJ145 passenger aircraft as a platform. Although the flight speed of the ERJ145 is not as good as our Falcon 8Z, it is at least within the category of a jet aircraft, right? In fact, Ed Steiners confidence in cooperating with Sweden comes largely from this new product that was put into service just last year. But the results obtained now are completely different from expectations. Casore shook his head helplessly: The system version used by the E99A is PS890, which is the model on the Saab 340. It has limited detection capabilities and can only achieve the most basic air detection. It needs to cooperate with the ground command post to achieve complete early warning and command capabilities..." ?The French Air Force needs to frequently perform missions in Central Europe, the Mediterranean, and even the Sahel region, but it is not integrated into the NATO command system and cannot rely too much on ground command. And after entering the 21st century, such models with incomplete functions have gradually lost their competitiveness in the international market. Even though the armies of many small countries seem to have little chance of fighting, it is precisely because of this that they pay more attention to keeping up with the latest trends in equipment construction - Dont worry about whether its appropriate or not, just say dont go forward first, right? Even the Swedes themselves are working on upgrading the PS890 system and matching it with the larger Saab 2000 platform. For a time, Ed Steiner''s train of thought seemed to have reached a dead end. Looking at the old superior who frowned and fell into silence, Kasore hesitated for a long time and finally raised his doubts: Doctor, the Swedes are not the only ones who can provide the same type of early warning system. In fact, Ericssons products have not been updated for a long time, so they are not very advanced today... Can we find other partners? ?Such a direct question made Ed Steiner a little nervous. He hesitated for a long time before finally answering: I originally considered that Ericsson has rich experience in designing and developing small early warning aircraft, and we also have to consider non-technical factors... Sweden and we are both non-NATO members that have close defense cooperation with NATO, so there are obstacles to cooperation. Its also smaller. Kasore remained silent and did not reply immediately. But judging from his expression, it was obvious that he was not convinced. If it had been put five years ago, these two reasons would have been quite convincing. But this was 2003. The NH90, which China participated in the design of half of, is equipped with four NATO countries. ?Our Dassault Rafales engine is not only imported, but at least half of it is someone elses. ?There are some things that you dont need to care too much about... Of course, the leaders have spoken, and Kasore cannot openly disobey the spirit of his superiors instructions, so he has to choose a roundabout strategy: "Doctor, David is currently cooperating with Gulfstream to install the conformal array Falcon system on the G550, and it is a version with the same functions as the Boeing 707 platform. Should you consider contacting Elta Electronic Industries? " ?Perhaps he was worried about Ed Steiners poor memory, so he made a special addition at the end: Although Elta had a serious breach of contract a few years ago, its subsequent supply to India has been relatively smooth, and there should be no commercial risks..." Obviously, the real focus of this sentence lies in the first half. ??This is also the part where Casore really wants to remind Ed Steiner. ?Sure enough, upon hearing this suggestion, the latters brows furrowed even deeper. ?However, for Ed Steiner, the business reputation of the Kingdom of David was secondary. ?Mainly one of the two opponents that the Falcon 8Z is mainly targeting is the Gulfstream G550, which first flew in 2001. The other one is the Bombardier Global 5000, which also made its first flight earlier this year. No way, the positioning, size, range...even the time to enter the market are all close. It must be a **** blow. Hence, the publicity plan he finalized can be said to be full of aggression. For example, the ultra-long range test was suddenly advanced largely because it wanted to get ahead of the G550, which also has a range of nearly 12,000 kilometers, and become the first iconic model to fly directly from New York to Tokyo or Beijing. ?Now we suddenly have to compete with each other for the same radar system carrier aircraft platform... Lets put aside whether its embarrassing or not. Others, Gulfstream is not a soft persimmon, how could it be possible to let it go casually? ??And the conformal array antenna looks good, but compared with the traditional piggy-back antenna, it has a greater impact on the overall structure of the aircraft. Still need to go back to the problem of finding people to optimize the overall structure... Finally, Ed Steiner decided to compromise with himself. "never mind" He let out a long sigh, then waved his hand: Let me think about it again Immediately afterwards, after confirming that Casore had left and gone far away, Ed Steiner returned to the desk at the speed of light, picked up the phone, and dialed the number of his secretarys office: Send me an email to China and ask them if they can provide a design plan for the radar antenna of the early warning aircraft... Of course its not detailed datajust have an overall plan, and it needs to be fast! ?The moment he put down the phone, he was a little lucky that he didn''t reply to the other party outright, but postponed it until today. Always leaves some room for maneuver.??? ?Ed Steiners request was quickly presented on Liu Yongquans desk. ?But this time, the former received feedback much slower than before. First of all, Chang Haonan, who first proposed this project, is currently concentrating on sorting out the large amount of work after the new model project was approved, so Liu Yongquan can only be responsible for coordinating this matter himself. Secondly, the cooperative research and development of early warning aircraft cannot be completed by the aviation power group itself. It also requires the cooperation of electronic technology and aviation industry. Or to be honest, the other two families are the main force. For cooperation like this that spans multiple enterprises, there are many approval procedures at the group level alone. Even though Chang Haonans signature gave almost the entire process the green light, it was still a bit of a headache for Liu Yongquan, who was not very familiar with this aspect of the business. ?It wasnt until half a month later that he finally went to Haojing again and contacted Liang Shaoxiu, who was in charge of testing the Air Police 2000. In fact, the two had met several times before. Not to mention, they attended the project launch meeting at the end of May at the same time. ?Its just that Liang Shaoxiu didnt have a chance to speak in the gallery at that time, and Liu Yongquan was the party undergoing the review, so he didnt have in-depth contact. Fortunately, they are all soldiers brought up by Chang Haonan on different tracks. Although he has no title, he still has some sense of being a brother. So, after just a brief exchange of greetings, the two of them became familiar with each other... ?Unsurprisingly, when Liu Yongquan walked into the Haofei assembly workshop for the first time, he was shocked by the early warning aircraft. So much so that for a long time, I couldnt take my eyes away from it In terms of size, the C909, a 110-ton platform, has limited physical volume. ??But carrying a big plate on your back and being "covered with thorns" creates an inexplicable sense of science fiction. ?Liang Shaoxiu was already used to this. Almost everyone who came here for the first time had the same reaction as Liu Yongquan. The second model launched by Mr. Chang and Academician Wang has entered the testing stage and is expected to be delivered to the troops for trial next year... ?After a brief introduction as usual, he was ready to get into the main topic of the day. ??But before he could say anything, he heard Liu Yongquan next to him whispering to himself in an emotional tone: No wonder Mr. Chang was so confident before When he first talked to Ed Steiner about the proposal to cooperate in developing an early warning aircraft, the latter did not give a clear answer. Instead, he looked around and looked like he was ready to find another partner for cooperation. ?Chang Haonan said at that time that there was no need to worry, as the other party would definitely look back in the end. ?There was no news for several months, and Liu Yongquan was still a little worried. As a result, when I looked here today, I found that Mr. Chang had probably started preparing for it a long time ago... Liang Shaoxiu was stunned for a moment, and he also understood the purpose of Liu Yongquan''s visit from this sentence: So...the cooperation project that Mr. Liu came to talk about this time is related to Air Police 2000? ?He just received a notice from his superiors the day before yesterday that comrades from Shengjing Institute 606 were coming to discuss model cooperation, so he didn''t know too many details. Strictly speaking, it is related to the early warning aircraft. Liu Yongquan also calmed down his expression and put on a serious tone: We have a business jet platform with a maximum takeoff weight of about 35 tons that was jointly developed with Dassault. Now the French side has made a request to us, hoping to jointly develop a light early warning aircraft based on it. He said, patting the briefcase in his hand: I have brought the basic information of the platform, but I need you to come up with an overall design of the radar system as soon as possible, otherwise I am worried that the French will not be able to wait... "etc" Liang Shaoxiu was stunned immediately: Is the platform ready? "yes." Liu Yongquan nodded, a little confused as to why the other party had such a reaction. ?Liang Shaoxiu strives to keep his mentality stable: In this case...we have an almost ready-made plan on hand..." ?At this time, it was Liu Yongquans turn to look confused: "ah?" As a young backbone who was promoted to a technical leadership position after the company was separated, Liu Yongquan does not know much about the situation outside the aviation development system. He originally thought that it would take several months for the brother units to come up with the overall plan that Dassault wanted. After all, its not just a matter of scaling down a large platform. ?For this reason, he even thought about how to stabilize the French people''s mentality. As a result, when I arrived in Haojing today, I found that...the other party was already ready? (End of this chapter) Chapter 1082 straight antenna Chapter 1082 Straight Antenna In fact, in Chang Haonans original vision, the platform and equipment were originally complementary. Its just that he didnt expect that the French would be stuck at a time when he was so busy that he hit the back of his head, so he didnt have time to organize the three companies himself. Only Liu Yongquan can connect with Liang Shaoxiu alone. So the situation becomes, the former is surprised "Why is there suddenly a ready-made adaptation solution?" The latter was shocked: "How come the early warning aircraft program was sold so quietly?" As for the Electronic Technology Group... ? Guo Lin happened to be in Jinling for basic testing, so he didn''t get there in time. But its not a big problem. The two parties have not even signed an agreement yet. The so-called overall design plan is originally impossible to give out all the detailed technical details directly. ?Early warning and command systems are inherently highly customized products. Even if the platforms are similar or even the same, the specific designs are likely to vary widely. ?The focus of this stage is still the aircraft structural layout and the basic performance of core subsystems. The main purpose is to give feedback that is acceptable to Dassault in terms of performance and schedule. As for the specific research and development work, at least we have to wait until Dassault shares the complete design data of the Falcon 8Z. Therefore, after briefly reviewing the known situation, Liang Shaoxiu separated several people from the project team and began to assist Liu Yongquan in sorting out relevant documents... This period of time is certainly fulfilling for them. But for Ed Steiner, who had been waiting for news in France, it was different. ? Considering that the Falcon 8Z itself is not yet in commercial operation, he is not in a hurry to see the plan. But the inquiry letter has been sent, there must be a feedback email indicating whether it is possible or not, right? In the past, Chinas response speed to business issues was generally within a week. Some important things can even be calculated by the hour. But this time, there was no news for nearly a month ?Communications between the two parties during the Falcon 8Z test flight continued as usual, but as long as he mentioned content related to the early warning aircraft in meetings or emails, the Chinese side would always respond with the phrase "actively discussing and researching". ??He also tried to contact Liu Yongquan directly to inquire about the situation, but the reply he received was that Mr. Liu was on a business trip and could not get through the phone... ?From Ed Steiner''s point of view, it is obvious that the other party is deliberately avoiding him. But now that the matter has come to this, he has no other option but to settle down and wait. Until one day in early July ?The assistant opened the door eagerly. ??There are still a few pages of official paper in his hand. ?It looks like it was just printed out and hasnt even had time to be put into the folder. Doctor, the reply letter from China has arrived! Speaking, he strode forward and put the documents on the desk. ??Although the other party did not directly explain the specific reply letter, looking at this anxious look, it was not difficult for Ed Steiner to judge that it was the matter that he was most concerned about. He sat up straight almost instantly, and the movement was so violent that the chair under his **** made a sharp sound. ?But the next second, perhaps considering his leadership image, Ed Steiner took a deep breath to calm himself down, and at the same time forcibly slowed down his movements. "knew." He nodded pretending to be relaxed: You go back first, I will come back to you later if I have something to do. Then he took out the pen from the pen holder and calmly looked at the first page of the document on the table. However ?After subconsciously skipping the previous few lines of routine polite words, the first sentence he saw was ?At your request, we have completed the overall structural design of the early warning aircraft antenna... ??? ?Ed Steiners right hand holding the pen shook violently, almost throwing off the pen cap that was fastened behind it. He closed his eyes and pinched his temples gently. Then open your eyes again. ?This is when I was sure that I had read it correctly. ?The other party did not just respond with an intention to "cooperate". Rather, in this month, the overall plan was worked out... ?Ed Steiner raised his hand to wipe the sweat from his forehead, feeling a little at a loss for a moment. ?But then I thought about it, the plan to jointly develop an early warning aircraft was originally proposed by the Chinese. ?It seems reasonable that the other party has been prepared for a long time... Although he found a seemingly reasonable explanation, he had to calm down at first. After this experience, he really couldn''t pretend anymore, so he quickly looked down. The meaning of Huaxia is very clear, that is, the basic plan is already available, but because a formal cooperative research and development agreement has not been signed, according to regulations, it cannot be sent out directly. You need to send a delegation. ? And the current design is only a rough outline. If you want to go into further details, you need to obtain detailed design data of the Falcon 8Z platform. At the end of the reply, I added a special paragraph, saying that the last two to three years may be a critical period for the explosion of the light early warning aircraft market. There are not many competitors at present. I hope that both parties can unite and not be separated because of some small differences. This leads to a lose-lose outcome. It is not difficult to see that there is something in what the other party said. ??At least we already know that Ed Steiner wanted to find a third party to cooperate some time ago, but was forced to turn back when he had no other choice. Its just that we are all decent people, and some words cannot be said clearly. ?Of course, we are also urging Dassault to make a decision as soon as possible. ?Even with a bit of PUA suspicion. ?However, if you see it, you can see it. ??But this passage really captures Ed Steiners psychology. ?So, the assistant, who had just returned to his office and didnt even have time to drink, was called back by another phone call... ?Just a week later, a delegation led by Didier Casore set off from France to China. ??Although Casore had not had much contact with the Aerospace Power Group before, and it was his first meeting with Liu Yongquan, he originally supported cooperation with China on the early warning aircraft project, which was considered to be completely in the same direction. Hence, the talks between the two parties went very smoothly, and soon ended the retreat stage and began to confirm the preliminary design plan. In fact, logically speaking, there are only four or five types of antenna layouts for early warning aircraft. ?In Kasore''s view, since the Chinese have already equipped a medium-sized early warning aircraft with a T-shaped cross-section antenna, what they come up with this time is probably a scaled-down plan. ?The key is how to integrate a fully functional system into a platform as small as the Falcon 8Z without having a fatal impact on the flight quality and body structure. ?However, when Liu Yongquan turned on the projector and presented the plan on the screen, he suddenly realized that he might still be too young. What appeared in front of the Dassault delegation was a straight-shaped antenna. Happily speaking, this should be considered a classic design of a balanced beam structure. But it is not installed on the back of the machine with a few thick supports like Ericsson''s solution. Rather, it is fixed by a slender structure similar to a hanger. It''s just that this "hanger" is upside down. It''s equivalent to having an extra ventral fin on the back of the aircraft... Thanks to this design, the distance between the antenna and the body is very close, which greatly reduces the impact of the entire structure on the efficiency of the vertical tail. Since the horizontal tail is completely higher than the front, there is no problem at all. ? And because there are no pylons that disrupt the airflow, there is no need to worry about stability during high-speed flight... In short, it seems that all hidden dangers are completely avoided aerodynamically. The only problem is. In order to ensure the number of T/R elements, the size of this straight antenna... Too long. ?Occupying almost 60% of the back of the machine. Furthermore, the weight of the entire antenna is concentrated on that narrow line. A civil aircraft does not leave any particularly exaggerated margins in its structure. ?This installation method has no effect on the lifting surface and control surface. ??But Casore is almost certain that the body itself cannot withstand such a high-intensity load... (End of this chapter) Chapter 1083 Im big but light Chapter 1083 I am big but light Although Didier Casore was aware of possible problems at the first opportunity. But almost at the same time, he had already started to make amends in his heart - The requirements for flight quality of early warning aircraft are not as high as those of business jets. As for military products, concessions can be made in many areas. Slower speed? It''s not a big problem. Anyway, the early warning aircraft hovers on the edge of the battlefield most of the time. Only the process of rushing to the mission area requires speed. Moreover, the Falcon 8Z is an aircraft with a cruising speed close to Mach 0.9. Combined with this straight-shaped antenna, which has very small resistance at first glance, it is faster than a propeller or a platform such as the ERJ145, and it can go far enough. The aerodynamic noise is louder...it''s not a big problem. War is not a vacation, it just passes through patience. If it doesn''t work, the operator can just hand out noise-canceling headphones. The maneuverability and serviceability are not very good... Its okay, military aircraft pilots and ground crew can both practice! As for operating costs and the like, that''s not a problem. The reason for this kind of thinking is not entirely because he himself advocated cooperation with China from the beginning, and now he would lose face if he failed to achieve success. Technically speaking, the design and production of the Falcon 8Z''s airframe structure are completely completed by Dassault, which is a part that can be 100% controlled. Compared with the rieye balance beam or Falcon conformal array solutions that bring huge additional risks in terms of aerodynamics and operation, although the design proposed by Liu Yongquan also has risks, if you really want to solve it simply and crudely, you can also solve it in a simple and crude way. At the expense of a slight loss of flight quality, we only start from the level of structural reinforcement. Calculating everything inside and out, the part that Dassault can control in its own hands can actually increase a lot. Although Casore himself is the head of the aerodynamics department, he is also the senior leader in charge of the Falcon 8Z project. Therefore, he has already begun to figure out how to provide adequate supplements to the body at the lowest possible cost. Too strong. Of course, for this kind of engineering matter, qualitative thinking alone is definitely not enough. To reinforce, you must at least have a specific reinforcement goal. Therefore, after Liu Yongquan briefly introduced the system called "highlight", Casore took advantage of an opportunity and asked directly: "Dr. Liu, what is the approximate weight range of the entire antenna group system you provided?" The specific mass distribution of the equipment can definitely be calculated after the detailed design is completed. But a simple total system weight indicator is not an important data. Kasore asked this, just to make a preliminary judgment on the difficulty of the follow-up work. Thats why Im talking about scope. However, the completion of this radar system called "Gaoming" far exceeds Kasore''s imagination. Therefore, Liu Yongquan immediately gave a specific number: "About 1.2 tons. Of course, it needs to be adjusted according to the characteristics of the aircraft platform, but the fluctuation will not exceed 5%." Faced with this answer, Casore''s first reaction was... Bewildered for a moment. In fact, for early warning aircraft, the radar antenna itself only accounts for a small part of the external load. For example, the entire antenna group of the E2C early warning aircraft weighs two tons, but the Yagi antenna of the AN/ASP145 radar is only about 770 kilograms. The rest are the radome, radar support frame, rotating mechanism, and of course the data transmission system. Generally speaking, active phased array radar has a large number of T/R components, so the antenna itself weighs more than traditional mechanical scanning radar. For example, the antenna weight of Erieye System''s PS890 radar reaches 900 kilograms. Although there is no complex rotating system, the cooling system and signal and power supply cables that are more complex than mechanical scanning antennas in turn add a lot of weight. As a result, the external load of the entire machine still reached about 1.3 tons. The straight-shaped antenna in front of him, although it further reduces the weight of the support system, is almost one-third larger than the PS890 in size. Calculating this, the antenna itself must weigh about 1.2 tons. The whole system is more in line with normal results when it is around 1.8 tons. Therefore, Kasore thought that he did not ask clearly at first. So he added another sentence: "I''m not referring to the weight of a single antenna, but the entire external radar group, including the radome and other servo mechanisms..." Unexpectedly, Liu Yongquan nodded directly: "What I''m talking about is the weight of the entire external load, which is around 1.2 tons, and will not exceed 1.3 tons at most." "In addition, the size shown in the picture is the one with the best performance among our series of solutions. If the user does not have a particularly high pursuit of detection distance, then the external load can be further reduced to around 900kg. Of course, the antenna The size will be reduced accordingly to about 8 meters. This result, which was so good that it was almost unreal, made the venue suddenly quiet. All that was left was the breathing of a dozen people and the whine of the projection equipment dissipating heat. As for Kasore himself, his mind was in a mess, and he even didn''t know what to think. The maximum payload of the Falcon 8Z when designed is 1850kg. If all external equipment adds up to only 1.2 tons, then as long as the number of operators and in-plane equipment is slightly controlled, the entire mission load can be limited to the commercial load. Within the load capacity. There is no need to bother with structural reinforcements at all. As for 900 kilograms...that can almost be installed directly on a Falcon 6Z that is two sizes smaller. Not only that, it can even allow AWACS and business jets to achieve most of their production on the same line. It only requires a few more steps in the final assembly process, and there is no need to go through the process again after leaving the factory. Although these details are inconspicuous, they do not seem to have any impact on performance, but they can greatly reduce costs and shorten delivery cycles. For users who are in urgent need of spot goods, the appeal is undoubtedly extremely high. Moreover, there is another non-technical advantage - In a short period of time, the only one that can compete with the Falcon 8Z platform early warning aircraft is the Gulfstream G550+ Falcon, jointly developed by Elta Electronic Industries and General Dynamics. Find David Guo to buy an early warning aircraft. And I still buy futures... If there were no competitors, that might be it. After all, the situation of the Ring Project is quite special, and it is inevitable that everyone will take some chances. But if there is a competing product that is obviously French, has similar or even better performance, and is almost ready-made. Then most users may have to weigh it. The only problem is How is this done? It can''t be that this pole is just an external antenna, and even the radome and cooling system are omitted, right? Fortunately, Kasore still had the most basic sense of reason at this time, so he didn''t ask such a outrageous question. But in a daze, he still blurted out: "Is the radar solution you provided... really an active phased array?" Compared with active phased array radar (AESA), which requires a separate T/R component for each radiator, passive phased array radar (PESA) has only one central transmitter and one receiver, so a single In terms of the weight of the antenna itself, it is generally much smaller than an AESA of the same size...strictly speaking, of the same area. In previous communications between the two parties, the term used has always been the somewhat ambiguous "electronic scanning radar." Therefore, it cannot be said that it is completely unreasonable for Kasore to have this idea. But it made Liu Yongquan on the opposite side laugh. However, he was not an expert in the field of electronic technology, and Guo Lin was still in Jinling at this time, so he left the right of interpretation to Fan Jimin, a project deputy from the Electronic Technology Group next to him. The latter was a little nervous at this moment, but after all, it was a serious question raised by a foreign partner, so he still answered solemnly: "On this point, our radar system is indeed an active phased array, and this will be reflected in our cooperation agreement." At this point, perhaps because he was worried that he was not convincing enough, he paused and added: "Actually, we have not systematically developed passive phased array radar. Please rest assured, Mr. Casore..." Although AESA is undoubtedly more advanced than PESA, in the technology tree, the two are actually in a parallel relationship with the same prerequisite technology, rather than a sequential relationship. Having said this, Casore could only think that the Chinese had some special skills in the AESA field. After lowering his head and writing down a few key points in his notebook, he thought he had calmed down and signaled to Liu Yongquan that he could proceed to the next stage of the meeting. However, Kasore would soon find out. Lightness is just the most insignificant advantage of this radar... (End of chapter) Chapter 1084 The prototype will be produced in China Chapter 1084 Prototype machine to be produced in China After introducing the design features of the "Gaoming" early warning system at the structural and aerodynamic levels, the next content is naturally the real core of the early warning aircraft, which is the performance of the mission load. Liu Yongquan admitted that he was not a professional in this part, so he completely left it to Fan Jimin, who had just answered the question. Although there are no radar system experts on Dassault''s side, Casore himself has had several rounds of negotiations with Ericsson in Sweden. He has never eaten pork and has seen pigs run away. Therefore, he did not care too much about the maximum detection distance, number of detection targets and other data in the introduction - Thats not to say these metrics arent important. But because it is too important. When the agreement is actually signed, there are hundreds of pages of attachments to confirm in detail. There is no way to describe it with such a simple one or two numbers. Now it''s just a formality. What''s more, the numbers given by Fan Jimin themselves are not very shocking. It has the ability to detect large air targets at a distance of 350 kilometers and fighter jets at a distance of 250 kilometers. It can also detect ordinary medium-sized surface ships at roughly the same distance as a maritime surveillance aircraft, and can detect low-flying cruise ships at a distance of 80-100 kilometers. missile The data is a bit more advanced than the PS890 system from nearly ten years ago, but it is almost the same as the improved PS890M that the Swedes gave him a thumbs up for. It looks like a standard early 21st century light early warning aircraft. The most obvious advantage is that the airborne system is a fully functional version that does not need to rely on ground stations for command. It can search for up to 300 targets at the same time and track 100 of them, and it has open access capabilities to data links and information command systems on the hardware. . But when it comes to the software level, users need to find their own solutions. China, at least in name, does not offer a complete solution. However, for Kasore who listened to the plan, this was actually a good thing Although France is not connected to NATO''s common command system, this is entirely a policy issue and there is no technical obstacle. Even many French military equipment are equipped with link16 data link hardware. Therefore, if China does not intervene in this aspect, it will be more conducive to the performance of its products in the international market. If nothing else, its appeal will soar at least in the Middle East. For a while, Casore had already begun to think about how to promote and price the product in front of him. It is definitely more expensive than the Saab 340 and similar products. However, in terms of paper performance alone, it seems that there is no particularly obvious advantage compared to the G550AE&W. The performance section specifically states that the cruise missile was discovered, perhaps taking into account the demonstration effect of the deterrence operation at the beginning of the year. But when the overall performance of the radar is close, others can also conduct a wave of tests and then write... It wasn''t until about twenty minutes later that Fan Jimin turned another page of the PPT on the screen. This time, the above is no longer a dazzling amount of data in the table. Instead, an overhead view model of an early warning aircraft appeared. A circle is marked with angles around it. Fan Jimin''s voice sounded almost at the same time: "The effective detection range of our radar system reaches 330. Compared with similar products, the blind area is almost eliminated..." Casore took a brief glance as usual, and then lowered his head again, preparing to continue recording his current thoughts on product development, as well as some matters that need to be paid attention to during negotiations with the Chinese people. 330 is indeed amazing at first glance. Compared with the early warning aircraft with disc-shaped radome, it is almost the same. But Kasore has seen this kind of data too many times. When in previous contact with the Swedes, Ericsson even added a front- and rear-viewing radar to the belly of the aircraft, and then brazenly claimed that its product had a 360 omnidirectional field of view. Regardless of the 60 front and rear, the effective detection distance is comparable to the visual distance under clear weather. And because it is blocked by the fuselage, it has no detection capability for the upper hemisphere. "Everyone is a seasoned veteran, why are you doing this with me..." He couldn''t help but cursed. However, before he could write again, the remaining images in Kasore''s mind made him realize that something was wrong. It seems... different from the few pictures I have seen before. He raised his head again like a spring. I soon discovered that the data in front of me not only included the available detection angles, but also the detection distance at each angle. In other words, it is like a data graph in a polar coordinate system. The part that covers the largest area, symbolizing the 350-kilometer detection range, occupies almost the entire side of the aircraft. Although there are weak areas or blind areas at the nose and tail of the aircraft, even with the naked eye, the angle is much smaller than all similar solutions he has seen in the past. It''s only about 30. In other words, the range in which Zhenger Ba Jing can exert its early warning and detection function is 150 on the left and right sides. That''s one quarter more than the competition. If considered from the perspective of actual air combat, the extra 60 may not be of any practical use. Especially for major users, that is, small and medium-sized countries, most of the threats they face come from a single direction. But the arms sales market is also a market, and demand can be created. That''s a surefire kill. Of course, the premise of all this is that it can expand the detection range while ensuring other levels of performance. Thinking of this, Kasore stopped the pen in his hand: "For phased array radars without mechanical action structures, the instantaneous bandwidth is generally limited by the array aperture, sub-array size and scanning angle... In the design plan you gave, the array aperture and sub-array size are not found in similar products compared to similar products. Order of magnitude improvement, will setting a scanning angle as large as plus or minus 75 affect the spatial resolution and dynamic range? " This question was somewhat beyond Fan Jimin''s expectations. An aerospace engineer can blurt out these knowledge in the field of signal processing, obviously he has done a lot of homework before. It is not something that can be dealt with in just a few words. Therefore, he did not answer immediately, but looked down at the notebook in front of him - As the main technician, Fan Jimin naturally knows the answer to the question. But he first needs to confirm what can be said about the radar design principles now. About half a minute later, Fan Jimin pushed up his glasses and said slowly: "In the Gaoming radar system, we use real time delay technology at the sub-array level to replace the phase shifter in conventional phased array radar, which in principle avoids the impact of spatial and temporal dispersion on instantaneous bandwidth." In fact, the reason why our radar is far lighter than similar foreign products and can use a simplified version of the antenna bracket is also for the same reason... The delay line not only reduces the weight of the antenna array itself, but also reduces the Thermal and energy supply loads "If Dr. Casore is interested, I can explain to you the mathematical model of the time-delay phased array in principle..." "No, no, no... I probably understand..." Seeing Fan Jimin talking more and more enthusiastically, and even preparing to go directly to mathematical principles, Casore immediately expressed his gratitude: After all, what the other party can speak openly and openly at this stage is probably the basic theory that can be found in textbooks. Now it is enough to know that the Chinese used a new technology to replace the phase shifter. The key point is whether the application of new technologies will bring additional risks to the entire project. And he asked the question directly. Fan Jimin showed a confident look: "Before proposing this design plan, we have conducted sufficient principle and technical verification, so the risks and the development cycle are absolutely within control." After hearing the first half of the sentence, Kasore breathed a sigh of relief. But what follows seems a little bit wrong: "Of course, when it comes to projects, different carrier aircraft platforms will have an impact on link noise, pattern characteristics, delay errors, and pulse compression of linear frequency modulation signals. If you want to obtain optimal radar performance, you need to Make fine adjustments to the specific aircraft-radar combination..." "So what you mean is..." Kasore''s face turned serious. After hearing the opponent''s direct question, Fan Jimin closed the notebook in front of him, stopped talking in circles, and said his own...or rather the request from Chang Haonan: "The first prototype needs to be produced in China and undergo complete flight and equipment testing!" (End of chapter) Chapter 1085 The east wind overwhelms the west wind Chapter 1085 The east wind overwhelms the west wind Fan Jimin''s request was not excessive. After all, the core airborne equipment, especially the radar system, is provided by China. Including the current cooperation between Elta Electronic Industries and General Dynamics, Gulfstream also delivered four G550 platforms and provided necessary technical support, but the entire modification process was completely completed by the former in the Kingdom of David. Coupled with the previous foreshadowing, Kasore could not think of any reason to refuse. But if we just give in like this, the situation will really not look good. Therefore, he in turn made his own demands. After the prototype testing phase is completed, the mass production phase must be carried out on Dassault''s final assembly line. And this happens to be one of the conditions that China has determined in advance and is acceptable. In fact, Chang Haonan first thought of cooperating with the French. In addition to being familiar with the Falcon 8Z platform, another important consideration was that the two parties had different core pursuits in this project. China already has its main model, the Air Police 2000, which meets the requirements in terms of cost and performance and is basically fully autonomous and controllable. Some of the remaining gaps can be filled with the Air Police 200. There is no real urgent need to equip a model with a long range. But it is a light early warning aircraft with limited performance. Therefore, the current main goal is to verify the entire optically controlled phased array technology route. As long as the testing process is completed in China and all the data is available, it will be fine. The rest are secondary purposes. Dassault is exactly the opposite. They are really planning to use this thing to bid for the French Air Force''s new generation early warning aircraft project, and then use this name to enter the international market. Although the apparent size is far inferior to that of the E3F, the cost is almost as high as that of the E3F. Moreover, relying on the advantage of being a latecomer, there is no generational difference in performance. Moreover, the combat pressure faced by the French army is relatively small. If the range is sufficient, it may not really need a difficult-to-serve strategic early warning aircraft. And since the Air Force is the target user, there will naturally be plenty of time to obtain data later, and there is no rush at this moment. The most important thing is to keep the entire project running smoothly. After all, E3F is considered existing equipment. Although the price of upgrading based on it is high, there is basically no risk. The time window left for you to get a new model is not long. If there were one or two major delays during the pilot phase, it was basically missed. Secondly, it is necessary to ensure that the final assembly and most of the production work are completed within the country. This is a very important bargaining chip at the equipment level. As a result, the two parties hit it off immediately. Of course, this is only at the level of intention. No one present had the authority to make a decision on the spot. If you want to formally sign the contract, you have to wait until everyone returns and reports the situation to the decision-making level. Moreover, the "Gaoming" project is said to be a cooperation between two parties, but the two parties refer to two countries. To be specific, there are three major players on the Chinese side alone, while on the French side, in addition to Dassault, Thales Group also needs the participation to complete the integration of the data link and command system. Fortunately, Chang Haonan had made arrangements for this project before. Liu Yongquan and Liang Shaoxiu completed most of the procedures on their side within a few days. However, at the Electronic Technology Group, the progress is slightly slower. Because Fan Jimin''s appearance at the previous meeting was just a temporary replacement. And Guo Lin, who is actually the person in charge, is currently dealing with a more urgent project... Beijing, China National Space Administration. The large-scale reorganization from the Science and Industry Committee to the Industry and Construction Committee a few months ago did not seem to have much impact here. Compared with the beginning of the year, the only visible change was the removal of the already infrequently used brand "System Engineering Division 1", and the rest remained as usual. Even the main leaders have been retained. Therefore, when Guo Lin walked in here, for a moment he even felt like he had gone back to half a year ago... "Lao Guo!" However, a voice soon woke him up from his thoughts. Guo Lin looked around and saw Zhang Weiyong, dressed in casual clothes, running down the stairs not far away. Lin Senming was followed behind. So he quickly stepped forward to greet him. In fact, there was no direct overlap between the three people''s businesses, but Chang Haonan put part of the test of the relay communication system on the Air Police 2000 last year, and later became the sales manager, and he was stunned by Guo Lin and the 14th Institute of Electrical Engineering. Also involved. Of course, the latter just enjoys it himself. "You guys look like...nothing has changed?" As Guo Lin went upstairs, he randomly found a topic. Not just for pleasantries. It is also necessary to divert attention to relieve some inner tension... "Hey... Our unit has been a non-military organization since its establishment. We don''t have to go through the same trouble as other brother departments." Zhang Weiyong explained: "Furthermore, now is the most critical juncture of the 921 Project. Business stability is the absolute first priority. It is impossible to make large-scale organizational structure adjustments for our supervisory units..." I originally wanted to talk about other topics to relax, but ended up going back to the manned space project. On the contrary, it made Guo Lin even more anxious. Naturally, such obvious changes in emotions could not escape Zhang Weiyong''s eyes. "I''m talking about Lao Guo." He deliberately added a hint of joking in his tone: "You should have a lot of projects passing through your hands. This is a normal battle today, so the reaction shouldn''t be so big, right?" "That''s different..." Guo Lin said as he rubbed his swollen forehead, but for a moment he didn''t know how to describe his inner feeling. After all, manned spaceflight is not an ordinary project. It cannot be judged based on the general level. Seeing this, Lin Senming, who had never spoken next to him, suddenly interrupted: "Lao Guo spent half his life thinking about how to send people to heaven. Now he suddenly wants to send people to heaven safely... I guess he has a burden on his heart..." One sentence almost made Zhang Weiyong unable to hold back. Of course, this is just a casual comment. In fact, the part of Project 921 that involves sending people to heaven was completed as early as early 2001. From Shenzhou 2 to Shenzhou 4, they are all full-state verification spacecraft with full manned capabilities. The reason why the test was repeated three times was just to ensure that it was as foolproof as possible. As for the part they are responsible for, it has nothing to do with sending people to heaven. Rather, it is just a matter of borrowing from each other with Project 921 to maximize the use of resources. However, this sudden cold joke made Guo Lin feel a lot better. At this time, the three people came outside the director''s office. The door was open, obviously waiting for them. It wasn''t until he walked in that Guo Lin noticed that besides Luan Wenjie himself behind the desk, there was another person sitting on the sofa next to him. He quickly recognized that the other person was Shen Junrong, the deputy commander-in-chief of the manned space project and the person in charge of the measurement and control communication system. "Sit down." Luan Wenjie put down the document in his hand and gestured towards the single-row sofa on the other side: "I heard Comrade Zhang Weiyong report that you plan to launch a satellite group consisting of four small satellites to solve the problem of real-time communication between the spacecraft and the ground?" Zhang Weiyong and Lin Senming were originally employees of the space agency, so this question was obviously aimed mainly at Guo Lin. "There is no way to talk about a solution..." The latter took a deep breath and replied: "However, using four satellites with communication relay functions and operating in MEO orbit to form a non-central communication network can indeed effectively expand the time window for high-throughput data transmission between the spacecraft and the ground." "For example, for a target spacecraft operating in a typical low-Earth orbit, it can be guaranteed to maintain a round-trip delay of less than 350ms with the ground for up to 50% of the operating time, and a communication capability with an available capacity of no less than 15Mbps..." In fact, this relay satellite group was originally designed to serve reconnaissance satellites like Ocean 1 that operate in sun-synchronous orbits. However, the span of going directly to the practical series in one step is indeed a bit too large, and the development cycle and investment cost are also relatively high. Therefore, Chang Haonan and Zhang Weiyong finally decided to do the next best thing and launch four small satellites weighing 100 kilograms to verify the feasibility at the technical level. In this way, the test window coincided with Shenzhou 5... On the other side, after hearing Guo Lin''s targeted examples, Shen Junrong''s originally calm face couldn''t help but have some waves. The manned space project itself already has a measurement and control communication system including domestic and overseas ground stations and ocean survey ships, which is used to ensure that the operating status of the spacecraft in key stages is under ground control. However, due to the limitations of the hardware conditions during development, this system only guaranteed the most basic functions, focusing on transmitting control signals and feedback signals. Secondly, the coverage of ground measurement and control stations is really limited and very irregular. If you want to achieve continuous communication for a long period of time, you can only wait for the period of time when the spacecraft passes over the mainland. Specifically for Shenzhou 5, it was probably just over 10% of the time in orbit. Calculated based on the one and a half hour operation period of the spacecraft orbit, it is about 10 minutes. After excluding some necessary work communications that cannot be fully disclosed, there is very little space left. We can only arrange a few typical sessions such as displaying the national flag and talking to family members. In other words, it just doesnt make much of a film. Of course, as China''s first manned space mission, even a few symbolic images have an immeasurable influence. But if, as Guo Lin said, this number can be increased to 50%. Even if it''s only 50% of one lap. It also means that for 40 consecutive minutes in one and a half hours, the cabin of the spacecraft can be directly observed. Both in terms of technical verification and publicity, it is a qualitative leap. Especially at this time point in 2003. A successful manned space promotion has a very special significance for China and even the whole world... (End of chapter) Chapter 1086 Medium and low orbit communications Chapter 1086 Medium and low orbit communications The issue of necessity was overcome almost the moment Guo Lin stated his expectations for the project. However, feasibility still needs to be determined before the plan can actually be implemented. Although Zhang Weiyong and others seem to have made some preparations, and there are ready-made platforms for small satellites under 100 kilograms, which do not require a long production cycle. But now its July, with only three and a half months left before the planned launch window for the first manned spacecraft. As the number one project in the world right now, Shenzhou 5 cannot be delayed due to non-technical reasons. Therefore, this relay communication constellation cannot be affected by any accidents. Otherwise, you will miss the time window. Luan Wenjie''s first thought after hearing the report was to postpone the project appropriately. But this matter is special after all. Even if he is the leader of the space agency, he cannot make the decision alone. So, he looked at Shen Junrong sitting on the other side of the office, ready to ask for his opinion - Due to the huge scale of the manned space project, in order to facilitate the integration of resources from various systems, the overall commander is always assumed by senior leaders. Therefore, although the latter is only the deputy commander in name, he has a very high say in operations. What''s more, the other party was also responsible for building the entire measurement and control communication system. "Mr. Shen, do you think this test...is it more appropriate to wait until mission No. 6 is carried out?" Luan Wenjie asked tentatively. This suggestion is not given casually. In fact, China''s technical personnel have been very clear about the disadvantages of relying solely on ground measurement and control networks from the beginning. To this end, the "Skylink" series of synchronous orbit relay communication satellites are also specially planned in the plan. It is planned to launch the first one before the Shenzhou-7 mission, that is, around 2007-2008. The reason why Luan Wenjie is interested in this low-to-medium orbit relay communication constellation is largely to provide a front-line for the Tianlian system. But for him, there is almost no technical difference between testing now and testing two years later. On the contrary, it can save a lot of unnecessary trouble. It should be said that Luan Wenjie''s thinking is indeed more stable. But after Shen Junrong''s analysis just now, he has realized the publicity value of this matter. The Columbia accident is certainly a tragedy for the entire human space industry. But objectively speaking, from the perspective of competition for voice, it is not entirely a bad thing. Especially since 1994, China has applied many times in the hope of participating in the International Space Station project, but has been rejected by NASA for various outrageous reasons. To say that I wasnt holding my breath was definitely a lie. Now the opportunity is in front of me. After passing this village, there is no such store. But on the other hand, Luan Wenjie''s concerns are indeed justified. Although this relay communication test can only be regarded as an external accessory of the Shenzhou 5 project, no matter what happens, it will not affect the launch mission itself. But if the plan is made but cannot be executed, or something goes wrong in the middle of the execution, then The effect is counterproductive. After all, its not like no one has tried using mid- and low-orbit satellites for relay communications. However, the eventual bankruptcy of the famous Iridium satellite project still cast a haze on this technical route. Therefore, after some careful thinking, he did not choose to answer immediately, but turned to the other side: "The United States and the Soviet Union, as well as the relay communication system we are currently planning to build, all work in geosynchronous orbit. Although the medium and low orbits obviously have large capacity, small delay, and flexible networking, there are also several problems that require you to Answer carefully." The atmosphere in the entire office suddenly became serious, and even the temperature seemed to have suddenly dropped several degrees. Chang Haonan must have been used to this kind of three-court trial. But for Zhang Weiyong and the others, the sense of oppression is still quite enough. The three of them immediately sat up straight. "First of all, the relative angular velocities of satellites in low and medium orbits between the satellite and the earth and between the satellite and the satellite are much larger than those in GEO orbits, which also brings stronger Puller frequency deviation and Doppler change rate. Have you considered any solutions? " When faced with the boss''s question, even Zhang Weiyong, who had acted calmly outside before, quickly answered in a clear-eyed manner: "In the past, communication satellites achieved wide beams due to their narrow frequency domain range. They generally needed to rely on OFDM technology to improve system band utilization and meet business needs and the increase in the number of users. OFDM signals are composed of multiple orthogonal subcarriers. , when there is a frequency deviation between the carrier frequency at the transmitting end and the local oscillator frequency at the receiving end, the orthogonality between the sub-carriers will be seriously affected, thus showing extremely high sensitivity to frequency deviation. " "However, the satellites used in this test are only oriented to individual targets and receiving stations. Moreover, they also chose to implement Ka-band signals with narrow beams. There is not much pressure on band utilization, so filter multi-carrier technology can be used As a candidate to enhance the systems anti-frequency offset performance As a communications expert, Shen Junrong naturally understands these principles very well. However, complex systems often affect the whole system, and problems cannot be solved simply by introducing a new technology. Otherwise, Iridium would not have gone bankrupt so easily. Therefore, almost as soon as Zhang Weiyong finished speaking, he continued to ask: But in addition to the severe losses suffered by the Ka-band during free space propagation, hydrometeors and atmospheric turbulence in the atmosphere will have a serious impact on signal stability, and the medium and low orbit also means that the signal needs to pass through more than 100 kilometers during the transmission process. Once relayed, this multi-hop network will further reduce the reliability of the data flow. How to ensure the low latency and high capacity you aim for? " However, in the face of seemingly increasingly aggressive questions, Guo Lin, who was a little reserved at first, suddenly became more relaxed I may not know much about things in the satellite field. But if you want to ask about multi-hop networks, he wont be sleepy: "Mr. Shen, regarding the problems of high transmission delay and low transmission rate caused by multiple relay nodes, our Electronic Technology System has cooperated with the Aerospace Power Group for more than a year and basically developed a network coding system. It is a complete solution with technology as the core and has been tested on three platforms: ground vehicles, stratospheric airships and early warning aircraft. The result is an order of magnitude increase in throughput compared to traditional networks. " "Although there is certainly no way to completely restore the working environment of orbital space in the atmosphere, at least in principle, it can fully meet the application needs of a centerless communication network within four hops..." After hearing this answer, Shen Junrong''s expression changed slightly. He also served as deputy director of the Commission of Science, Technology and Industry for National Defense in the past. Although he has resigned long ago, he still has some understanding of the systems under the former Commission of Science, Technology and Industry for National Defense. Aviation systems are not known for their expertise in communications. To say that he could do something big in this area that even he didn''t know about... Shen Junrong quickly thought of an answer. "Aviation Power Group..." He gently tapped the armrest of the sofa with his right hand: "Is it Comrade Chang Haonan and the others?" Obviously, this name still carries a certain weight. "That''s right." Guo Lin nodded quickly: "In fact, relying on Mr. Chang''s technology, we have successfully developed a theater-level communication command system, so we will further consider testing it on a space-based platform." Although it is not a project within the system, Shen Junrong has heard about the new data link. At this time, Guo Lin added: "Actually, the main part of this project was previously handled by Mr. Chang himself, but now he is busy with the establishment of new model projects, so he entrusted the follow-up testing tasks to us..." Many factors came together, and finally the balance in Shen Junrong''s heart gradually began to tilt. Of course, this is a big deal. The process that needs to be followed is still indispensable: "You should integrate the relevant technical solutions into a report as soon as possible. This matter... needs to be discussed by the Manned Space Engineering Command before it can be decided." (End of chapter) Chapter 1087 Titanium alloy hollow fan blades Chapter 1087 Titanium Alloy Hollow Fan Blades Although the results were not given directly, as long as it was handed over to superiors for discussion, it basically meant that the problem was not serious. Especially if the technology itself has been proven on the ground and in the air. The subsequent conversation among several people quickly turned to a more specific level. After all, a satellite, especially a small 100-kilogram satellite with limited frequency band resources and energy supply levels, has many issues that need to be considered in addition to the core functional modules. For example, cross-layer adaptive transmission, Doppler change rate estimation algorithm, Ka-band satellite channel model, and tilt estimation algorithm, etc. Not to mention at the beginning of the 21st century, even in another twenty years, a large number of microsatellites will be launched with a probability of failure calculated before entering orbit, and then launched with redundancy. But there are only four constellations in total that Chang Haonan and his team are testing this time, so they definitely cannot withstand any accidents. Fortunately, Lin Senming and Zhang Weiyong were originally from satellite design backgrounds, so they had already considered everything in these aspects. And Guo Lin was happy to reduce his presence. Unless the question is related to one''s own business, it is just a matter of silence. Therefore, this meeting came to an end very quickly. However, just after leaving Luan Wenjie''s office, he was stopped by Shen Junrong who followed him out of the office. "Comrade Guo Lin, please wait a moment!" After all, Guo Lin is considered a member of his brother''s unit, so Shen Junrong''s attitude towards him is relatively polite. The three of them stopped at the same time and turned to look at the latter who was holding a briefcase and coat in his hands. Seeing them looking like they were facing a formidable enemy, Shen Junrong smiled and waved his hand, signaling them to relax: "Don''t be nervous... We''ve just finished talking about the main business. I just want to ask a few more things that I''m personally interested in." Thats what he said, but Guo Lin couldnt really take it as a casual chat: "You said." As an expert in the field of aerospace measurement and control, Shen Junrong is naturally most interested in his old profession: "I remember you just said that because this constellation only corresponds to individual spacecraft and ground terminals, there is not much pressure on the frequency domain and beam pointing?" "That''s right." Guo Lin nodded: "Due to satellite size considerations, we only set up two downlink channels and four uplink channels on each satellite, but combined with the new attitude determination algorithm, it is expected that the communication needs of this test can still be achieved." In fact, Guo Lin did not tell Chang Haonan''s entire plan. This four-star constellation is expected to operate effectively for more than a year. After completing the relay communication task for Shenzhou 5, it will return to the original design purpose. That is to provide a wider image return window for the Haiyang-1 satellite Or only serve individual objects. It is expected that the time for data transmission can be increased to 6-8 hours per day. Of course, because the communication rate of Ocean One itself is very slow, it is impossible to reach the theoretical performance upper limit of the relay constellation. But it is enough to avoid the situation at the beginning of the year where a lot of useful information was captured but required multiple cycles to be transmitted, which affected the timeliness of reconnaissance information. However, this answer obviously did not solve Shen Junrong''s doubts: He motioned for several people to move forward together and continued: "When I was at the Science and Industry Committee, I had some contact with Advisor Chang. He doesn''t seem like the kind of person who only looks at what''s in front of him..." "You have put so much effort into verifying relay communications from airships to airplanes to satellites. So the ultimate goal in the future is probably not to just serve a few individual spacecraft or satellites, right?" Then when the number of users increases, wont we have to solve the problems of frequency domain range and pointing flexibility? I can only say that people who have led large projects do have a different perspective. The long-term goals planned by Chang Haonan can be seen through at a glance. In fact, the other three people didn''t know about this issue either. Zhang Weiyong knew that Chang Haonan''s original purpose of planning the relay communication constellation was to form a global space-based remote sensing system with a revisit cycle of days or sub-days at the lowest possible cost. And it takes into account multiple levels of tactics and strategy, military and civilian use. Considering the diversity of usage environments and the multiple classifications of remote sensing satellites themselves, as Shen Junrong said, it must be a quite complex network. But Chang Haonan has never revealed how to achieve it technically. However, Guo Lin on the side gave an answer after pondering for a while: "We did not apply for the commonly used but crowded L/S/C bands, but chose the Ka band, which is currently relatively sparsely used. We have considered this aspect, and the other thing is..." At this point, he hesitated for a moment, as if deciding whether he should continue. But finally he continued: "Although Mr. Chang didn''t mention it explicitly, I personally guess... it may also be related to the new wide-bandwidth angle phased array technology we are currently testing." Ground testing of the optically controlled phased array radar has been carried out for almost two years. It has many advantages, such as light weight, low heat generation, high beam pointing accuracy, and wide frequency domain range... which are very suitable for use on satellites. It is logical for Guo Lin to make this conjecture. When Shen Junrong heard the description of "new phased array technology", he knew that the other party should be referring to the optically controlled phased array. He had overheard it from the leader of the Electronic Technology Group during an industry meeting. However, Shen Junrong did not delve deeper. Although it is a national chess game, after all, we are not in the same system. It is impossible to tell you every detail just because there is a cooperative relationship. Continuing to ask questions without taking it seriously will only lead to embarrassment for both parties. Coincidentally, the four of them also arrived at the door of the building. He took advantage of the situation to say goodbye to the three of them, and once again asked him to report the plan as soon as possible... While several comrades from brother units were busy taking off because of his advance layout, Chang Haonan himself had also completed a series of preparatory work after the project was established. Generally speaking, development work does not officially begin until this stage. But the projects managed by Chang Haonan still conformed to his past habits - In the pre-research stage, tasks have been assigned to each unit, and research on some key technologies has even begun. Therefore, less than a month after the AE1500/turbofan 20 project was established, Chang Haonan convened his two departments responsible for production and testing to conduct the first sample production seminar. Of course, this does not refer to the complete machine sample. Not even part-level samples. Even if there are system cheats, it is still too outrageous to come up with complete design parameters in one month. In fact, it can only be regarded as a prerequisite task for fan testing. However, although it is a preliminary task. But the difficulty is not low at all... In the conference room, Chang Haonan was sitting at the head of the conference table, looking sideways at the blade design displayed on the curtain behind him. In the design, we tried to increase the relative chord width by more than 40%, greatly improving the aerodynamic efficiency of the fan blades, and enhancing the blade rigidity while also weakening the vibration intensity under high-speed rotation, thereby removing the blade body from the design. The boss in the middle reduces the difficulty of manufacturing the outer contour of the blade..." However, on both sides of him, a dozen other technicians looked troubled Compared with the fan designs they have been exposed to before, whether it is Turbofan 9, D436 or PS90A, the solution in front of them is hugely different. The wide chord design does reduce the difficulty of manufacturing the outer contour. However, the large back-curved and swept blade shape made of titanium alloy material itself means that the basic difficulty is extremely high. And the nearly 40% internal hollowness, isnt it a bit outrageous? Due to the excessive void ratio and the fact that Chang Haonan did not radically adopt the blade pre-deformation design, a large number of triangular trusses were designed inside the fan blades to ensure strength. Its even more of a nightmare during CNC machining After the introduction, Chang Haonan turned around and saw the embarrassed expressions of the comrades in front of him. However, he showed a smile instead: "Don''t be so grimacing... I know that this blade is a form that you have never been exposed to before, and it will use many new technologies and concepts... But I have basically planned the production route of the sample." Hearing Chang Haonan say this, the atmosphere at the scene finally relaxed a little... (End of chapter) Chapter 1088 Adaptive CNC machining Chapter 1088 Adaptive CNC Machining However, the relaxed atmosphere did not last long. A good designer will indeed consider the difficulties of the production process during the design stage. But the processing plan planned by Chang Haonan is not much more anthropomorphic than the blade itself he designed... He just clicked the mouse, turned the PPT to the next page, and said at the same time: "First, a milling process is used to process a three-layer titanium alloy sheet with a certain shape, and the soldering inhibitor is applied to the titanium plate in a selected area according to the forming requirements of the triangular truss structure..." "Then the diffusion joining process is used to weld the three layers of titanium plates into one piece, and the welded blade blanks together with the clamps are placed in a vacuum furnace and heated to the superplastic state of the titanium alloy, forming a swept blade shape under the action of torque..." Then inert gas is blown between the titanium plates to completely fit the blade blank and the clamp, forming a triangular truss hollow structure and aerodynamic shape. Finally, CNC machining methods are used to process the tenons, blade body, front and rear edges, and blade tips. The tenons are usually processed by grinding or milling to form the tenon tooth surface, and the blade body is grinded with abrasive belts to improve the surface processing quality, and the front and rear edges are Use multi-axis milling to process edges..." At first, no one realized the seriousness of the situation. But soon, Zhang Zhenhua, who was in charge of process production, began to look wrong. As a designer, it is naturally impossible for Chang Haonan to prepare the process parameters, otherwise the production engineers like them would have no value in existence. If this production route is used on small and medium-sized fans such as Turbofan 10 or SeA650 with a blade chord length of about 50-60 cm, there will be no big problem. However, the diameter of the AE1500 fan is nearly two meters, which is almost 30% larger than the CFM56-7 of the same level. The bypass ratio reaches an astonishing 9.03, and the blade chord length also exceeds 90 cm. In terms of size alone, it is completely cross-band. product. With the same processing technology, after the product is doubled, the difficulty will not be doubled. "Mr. Chang..." After thinking for a moment, Zhang Zhenhua truthfully reported his judgment: "If we are just producing samples for testing, then our equipment has been upgraded and should be available soon... before the end of the year at the latest. But if we want to put this kind of process into mass production..." Having said this, he rubbed his hands together nervously: "I dare not give a definite timetable." Then he took a deep breath and continued as if he had made up his mind: "The inner shape of the hollow triangular truss structure is formed in one step during the superplastic forming/diffusion joining process. A small amount of polishing of 0.1~0.15mm is left in the blade body of the shape, while the highest margins in the blade tip and root parts can Reaching 1.2mm, the structural characteristics of each processing part require the use of diversified CNC processing methods, which in turn makes it difficult to smoothly transfer adjacent areas of each processing part. "In addition, the blade tips, blade roots and front and rear edges are solid structures, which are more rigid than the hollow parts of the blade body. Coupled with the triangular hollow truss structure that alternates between virtual and solid, the entire blade has alternating stiffness characteristics, resulting in fan blades The deformation rules during CNC machining are very complex, and it is difficult to control the amount of machining deformation by existing means alone. "Also, during the forming process, the titanium alloy sheet has to go through multiple high-temperature and high-pressure cycles. Since it is impossible to control the cooling parameters and wall adhesion rate 100% accurately, the stress levels in different parts of the blade are affected by stress. The resulting strain is also difficult to control. If these problems are taken out individually, they are actually not difficult to solve, but when combined together and put into mass production, it is likely that even the blade blanks of the same batch will have poor consistency, requiring several separate processes. , to check the semi-finished products in the production process..." Zhang Zhenhua did not continue. But this is indeed a serious problem. Industrial production is actually not afraid of simplicity and complexity. As long as the equipment and money are in place, and you are willing to spend time, the process parameters, no matter how complex, can be gradually determined. Once it enters the mass production process, it will no longer involve cost investment at the R&D level. As product output gradually increases, production efficiency and costs can always reach a relatively stable state. But if the results of a certain processing process cannot be determined, it means that the subsequent process parameters may have to be determined individually for each individual product. Although it is much simpler than developing it from scratch, it will definitely limit production and cost. If it is building rockets or industrial aircraft, then the annual output is not much anyway, so this semi-industrial and semi-handicraft approach is still acceptable. But after all, aircraft engine blades are in huge demand, and it is impossible to produce them with carving skills. For a time, almost all eyes in the entire conference room were focused on Chang Haonan, who was sitting in front. "Regarding this issue...you should do it according to the sample method first. It doesn''t matter if the output is small, as long as it can enter the testing process normally." He had anticipated the obstacles in the production process when he first conceived the overall design. Otherwise, it would be impossible to allow such a long execution time for the entire project on the premise that the core machine is already available. "The specific process..." Zhang Zhenhua said and glanced at the flow chart on the PPT. "I''d better do what I just said!" Chang Haonan gave a decisive answer, and then continued: "I plan to cooperate with the machine tool department to solve the problem of adaptive machining before the mass production of AE1500. This can be regarded as solving some technical difficulties for our brother units in advance..." In fact, in the original timeline, it was not the aviation industry that was first troubled by this problem, but aerospace and shipbuilding. In the mid-to-late 2010s, China Aerospace had a dark moment when its launch success rate was even lower than that of India next door. It was going through the painful period of transition from handicraft industry to industry. In the end it took many years to resolve. Now Chang Haonan has laid a trap for them. "Machine tool department?" Zhang Zhenhua was immediately stunned Never heard that your own group has a unit specifically responsible for equipment manufacturing? "It''s a joint venture established by Torch Group and C.B. Ferrari." Chang Haonan explained: "The problem of poor processing consistency cannot be solved by calculations and predictions before production alone. We can only find solutions in the process of process execution... Comrade Zhenhua also said just now that the most direct solution is to After the step is completed, the processing results are measured, and the next process parameters are determined based on the measurement results. If this process is carried out alone, it will definitely interrupt the production process. However, if on-machine measurement can be achieved, that is, in the next step, the measurement and processing operations can be completed with one clamping to avoid repeated disassembly and clamping. The impact of measurement and machining accuracy, combined with the adaptive CNC technology of overall adaptive deformation of template knife points and local smooth transition deformation, can maintain the continuity of the entire production process..." In fact, Zhang Zhenhua originally asked casually about the equipment. This is not his area of ??expertise. However, the idea given by Chang Haonan was really outrageous. To put it simply, it does not solve the consistency problem in the production process, but directly ensures the consistency of the final product by using different parameters for different semi-finished products. It is equivalent to automating the manual work of the old master. But regardless of whether the adaptive CNC programming technology can truly "teach students in accordance with their aptitude", the previous on-machine measurement is also very difficult to implement. He asked almost subconsciously: "But Mr. Chang, due to the limitations of the clamping method and the excessive bending and twisting of the blades during the measurement process, some positioning points on the trailing edge must be calibrated manually... If this part is abandoned, the final accuracy may be comparable to manual intervention. There will be a certain gap..." This is true. With the development of human industry to this day, the most sophisticated work is actually still done by human hands. Therefore, in traditional processing ideas, accuracy and production efficiency are almost an irreconcilable contradiction. But sometimes, you can actually change your mind - From overcoming errors to accepting errors. However, before Chang Haonan could give feedback, Ren Bingda, who had been silent before, raised his head first: "Actually, when I inspected Rolls-Royce before, I found that their requirements for the outer edge of the fan or turbine blades are not that precise." Often, the front and rear edge angles are processed to adapt to the size of the blank, and then the processed blades of the same batch are measured and weighed together, and blades with similar shape, quality and center of mass position are selected and installed on the same vortex. On the fan engine, it is not 100% guaranteed that all blades will be processed exactly the same. "So, according to Mr. Chang''s thinking, the accuracy of on-machine detection...may be acceptable." (End of chapter) ~ It turns out that Americans did it too It turns out that Americans did it too I admit, I still underestimated them (End of chapter) Chapter 1089 Dongfeng Aerospace City Chapter 1089 Dongfeng Aerospace City Summer passes and autumn comes. In the midst of busy work, time quickly came to September 2003. Chang Haonan was finally able to get some relief from the busy work just after the new model project was approved. However, the free time left for him did not last long. On September 17, the astronauts on the first flight of Shenzhou 5 entered the site, completed joint inspections of people, ships, rockets, and ground, and conducted a complete launch negative eight-hour procedure drill, which also marked the final stage of China''s first manned space mission. countdown stage. According to the plan, the rocket will be transported vertically to the launch area on October 8 and launched on October 15. As far as Shenzhou 5 itself is concerned, as long as no accidents occur, the plan has been finalized and there cannot be any major changes. But there is still a lot of room for change in some other tasks related to launch. For example, data transfer tasks... With the advancement of Zhang Weiyong, Guo Lin and others, the small satellite group named "Qingluan" was launched half a month ago on a Long March 4 rocket and was confirmed to be in normal working condition. But that doesn''t mean all is well. There are only four satellites operating in the MEO orbit, which means that providing stable relay guidance services to the spacecraft must not be stable enough. Therefore, Guo Lin''s previous statement was also that the coverage rate was "the highest", that is, it could reach 50% in a certain circle during the operation of the spacecraft. But the Shenzhou 5 mission only lasted less than one day. It can only circle the earth 13-14 times at most. Although the first manned flight is mainly for verification, the specific tasks of each lap will also be arranged before launch. Specific plans require more detailed planning. Therefore, after a few days of rest in Haojing, he rushed to the satellite launch center in person... Although the launch base upgraded by China for Project 921 is called Suzhou Satellite Launch Center, part of it is located in the EJNQ area of ??Mongolia Province. In fact, it has a special name. Dongfeng Aerospace City. At this moment, Taolai Airport doesn''t even have a plan. The nearest airport that can land fixed-wing special planes is Dingxin Base. But there is still some distance. Therefore, the launch site arranged for Chang Haonan to transfer in Dingxin and take a helicopter to the final destination. He was relatively resistant to this plan at first. Since helicopters fly in the lower troposphere most of the time, even the most advanced models have far greater noise and vibration in the cabin than fixed-wing aircraft. In comparison, taking a car may be a more comfortable option. However, when Chang Haonan actually arrived at Dingxin Airport, he still performed a really sweet show on the spot - Parked not far away was a helicopter that clearly belonged to the search, rescue and recovery air unit. But it is not the Mi 17 that was common in TVs in the previous life. It was a Z-12 painted in camouflage. That is the Chinese version of NH90. This is not the first time Chang Haonan has ridden on a model he participated in designing. I had already experienced this once when I was conducting ground testing of the relay communication system last year. But it was somewhat beyond his expectation that this model, which had been in service for less than three years, was selected to carry out search, rescue and recovery missions so quickly. While Chang Haonan was standing at the door of the cabin, stunned, two people in fur coats also jogged all the way to the gangway. The leader is naturally Guo Lin. "Mr. Chang." Guo Lin took two steps forward, took the initiative to say hello to Chang Haonan, then turned sideways and motioned to the other person next to him: "This is Comrade Song Lei, the head of the 22nd Institute of Electrical Engineering." Hearing the other party''s workplace, Chang Haonan suddenly understood. The 22nd Institute of Electrical Engineering is the technical unit responsible for aerospace search, rescue and recovery. It should be the staff who came to accompany you. After a brief exchange of greetings, the three of them walked towards the helipad. On the way, Guo Lin began to report the current situation: "Mr. Chang, the Qingluan constellation has conducted two rounds of communication tests with the target spacecraft in sun-synchronous orbit. The results fully meet the design requirements. Next, only one attitude adjustment is needed after the plan is finalized to fully adapt to the Shenzhou V "It''s just that the meteorological department reported that the weather over Beijing has been cloudy and cloudy in mid-October, and it may rain at any time. For the sake of safety, would you consider moving the ground measurement and control center?" Turn to Shule Measurement and Control Station? Since the relay communication system was originally designed to adapt to the space-based remote sensing system, the initial ground terminal was naturally located in Danju, the capital city. Measurement and control tasks in Beijing generally use C/S/L bands and are almost not affected by weather. But for the Qingluan constellation that chose the Ka band, it still brings some risks. Of course, it wont cause the connection to be disconnected directly, but its not a good idea if the entire screen freezes halfway through the transmission. Shule Station, located in Xinjiang Province, wishes it had 360 sunny days every year, so it has no worries about this at all. Chang Haonan slowed down after hearing this and thought for a moment. Finally, he shook his head and said: "To carry out relay communication tasks, a large amount of equipment needs to be installed in advance. The location of Shule Station is too sensitive. After all, our constellation does not fully serve manned spaceflight, so it is better to avoid it..." In addition to the well-known internal problems, due to the strong penetration of the United States into Central Asia and the deployment of a large number of military bases and intelligence centers in Aiwuhan, the western region also became one of the regions most severely penetrated by the outside world for a period of time in the early 21st century. one. Flying over for aerial testing is fine, but transporting sensitive equipment over land is still a bit risky. "Then the backup plan..." Guo Lin also looked embarrassed. "The high-altitude airship we used for relay communication testing should not be returned yet. If the weather in Beijing is really bad enough that the Ka-band signal cannot penetrate the rainy area, the airship can be used to relay the signal again and transmit the signal to Haojing''s 26 Experimental training base While they were talking, several people had already arrived next to the helicopter that had already been warmed up and prepared. I have to admit that the three-color camouflage paint on the helicopter does look rather... earthy. Even if it is the same helicopter, if it is replaced with a later desert color or light gray paint, the appearance can be improved several levels out of thin air. Song Lei, who had been silent just now, took two steps forward and took the initiative to open the hatch. Chang Haonan held on to the brim of his hat and ducked in. He looked around in the cabin and finally determined that the aircraft''s comfort configuration should be fully loaded according to European standards. A proper VIP plane. Obviously not the level of ordinary Lao Lu. This shows that this is a specially purchased aircraft, rather than a temporary model seized from some unlucky unit of the Army Aviation Corps. "You change clothes very quickly." "Special support from superiors..." Song Lei, who came up later, answered while fastening his seat belt: "It is said that the specific landing location of the astronauts is uncertain, and they may need the services of a medical surveillance and medical insurance helicopter. Although the Mi-17 is powerful enough, its comfort is really... average, and search and rescue helicopters will appear in the news frequently. In all aspects, it is more suitable to use domestic models..." Not long after, the helicopter flew over Dongfeng Aerospace City. In fact, this is Chang Haonan''s first time here. Looking from afar, an isolated city located in the desert, In particular, there are two giant buildings, the tall vertical assembly plant and the launch tower, as well as the transfer track connected between the two. Watching it on TV, you may not feel anything. But to be here in person is to be in a condescending position, and the shock it brings is real. At Song Lei''s special request, the helicopter did not land immediately. Instead, it flew around the launch center for half a week before landing smoothly on the apron. Although he was very curious about the situation in the launch site area, after all, he was on a mission, so Chang Haonan quickly got in the car and walked through the center of the base to the general technical department. Under the leadership of Song Lei, several people quickly arrived at Shen Junrong''s office. The latter has obviously been waiting here for a long time. Even before Chang Haonan knocked on the door, he quickly stood up and welcomed him in. "Comrade Haonan, I have waited for you..." Shen Junrong motioned for Chang Haonan to sit on the sofa, took the kettle from the side and poured him a cup of tea himself: "Now that the broadcast plan has been basically finalized, I''m just waiting for your confirmation on the specific time frame within which continuous communication can be guaranteed..." As soon as he finished speaking, Chang Haonan put the briefcase in his hand in front of him: "I''ve prepared a detailed plan." "Based on the actual conditions on the day of launch, it can be guaranteed that at least two of the eighth to tenth orbits around the earth will provide high-throughput data transmission for no less than 30 minutes!" (End of chapter) Chapter 1090 20 minutes of "quasi-live broadcast" Chapter 1090: 20 minutes of "quasi live broadcast" Shen Junrong''s hand holding the teacup suddenly stopped in mid-air. It wasn''t until he was burned by the transmitted temperature that he hurriedly retracted his hand and placed the cup in front of Chang Haonan: "So fast?" He asked with a look of astonishment: "But, the launch plan..." You know, it''s only mid-September. The launch on October 15th can only be regarded as a tentative date. After all, no one dares to guarantee that the weather conditions will be suitable for launch a month in advance. If there are any temporary adjustments, all the relay plans will be drastically changed. It would be fine if it were just a paper modification, but due to the limited effective coverage of the small micro, it would also involve issues such as antenna pointing and even satellite attitude correction. "Of course it is calculated based on the existing launch time." Chang Haonan smiled and picked up the cup: "However, according to our plan, the Qingluan satellite group will wait until 8 hours before launch before starting attitude adjustment... So even if the plan changes, it doesn''t matter, it will not affect the operation of the satellite itself." This answer immediately stunned Shen Junrong, and then he quickly opened the briefcase on the coffee table without even caring about his burned fingers, took out the easily visible folder from it, and started flipping through it quickly. The entire plan is of course very long. But the core content is actually less than five pages. Therefore, in just ten minutes, Shen Junrong saw the end. As the pages turned, the expression on his face changed from shock to solemnity, and then to a bit of confusion. After thinking for a while, he went back and read these pages again. However, the confusion on his face did not lighten at all. Naturally, this revolving lantern of expression changes did not escape Chang Haonan''s eyes, so he put down his teacup and asked with concern: "Mr. Shen, is there anything wrong with my plan...?" Shen Junrong raised his head: "No...no, there is..." After some rather confusing expressions, he finally organized his words: "It''s not that you have a problem, it''s that I have a question to ask you..." Chang Haonan almost burst out laughing when he first heard this sentence pattern. It took a lot of effort to finally hold it back and switch back to a serious expression: "You said." Shen Junrong immediately turned to one of the pages of the plan: "The satellite attitude adjustment part... Is it a little difficult to determine the new attitude of all four stars in such a short time?" As an experienced engineering expert, his questions get to the point: "Of course I''m not questioning your calculations. If this is the Dongfanghong-4 platform, there is indeed no problem, but yours is a small satellite. The attitude sensor of the lightweight platform is limited by size and function, and its performance is difficult to match that of traditional Compared with aerospace-grade components, it generally requires multiple rounds of calibration to ensure sufficient pointing accuracy..." Obviously, although the Qingluan satellite group itself is not subordinate to the manned space project, Shen Junrong has been paying attention to the former during this period. At least, even the parameters of the sensors used on the satellite are understood. However, using a lightweight and low-cost attitude sensor configuration of magnetometer + sun sensor + gyroscope to efficiently determine the satellite attitude was originally one of the key projects of Qingluan system testing - Aerospace-grade components are accurate and reliable, but the way they are manufactured in precious metal packages makes them expensive. It is simply impossible to reduce it to a level that can be applied on a large scale. Moreover, the output cannot keep up. Therefore, Chang Haonan immediately explained: "If the attitude is determined directly based on the measurement values ??of the attitude sensor through a deterministic algorithm, it is indeed difficult to overcome the impact of measurement errors on the accuracy of attitude determination." "However, you can first use the Gauss-Newton algorithm for preliminary solution..." As he spoke, he suddenly looked around, as if he was looking for something. Shen Junrong quickly gestured to Zhang Weiyong who was waiting next to him. The latter quickly handed over pen and paper. "Like this...convert the 6-dimensional observations of the magnetometer and solar sensor into optimal quaternions, thereby reducing the observational degree of freedom from 9 dimensions to 7 dimensions, and then use the optimal quaternions to combine gyro data as observations By using the attitude quaternion and the angular velocity in the inertial frame as the state quantity for UKF filtering, the impact of measurement errors can be reduced to the greatest extent and the attitude solution accuracy can be improved..." While describing, Chang Haonan roughly listed the calculation methods of the filtering state equation and Kalman gain matrix. Of course, the specific results cannot be calculated by the human brain. Zhang Weiyong has been conducting state simulations on Shuguang-3 since the second half of last year, and it was not until shortly before the launch of the satellite that all parameters were finally determined. After finishing writing, Chang Haonan put the pen aside calmly: "Although the accuracy is still impossible to match that of large platforms, medium-orbit satellites are not particularly sensitive to attitude, and even if four sets of backups are included, the cost of the entire attitude positioning system is less than 10% of the traditional solution. , enough to be put into large-scale application in the future..." "Four sets of backups?" Shen Junrong has never seen the complete design plan of Qingluan satellite. Chang Haonan smiled and nodded: "There is no way. Due to cost and construction period considerations, the satellite-borne computer does not use aerospace-grade products. If we don''t prepare a few backup sets, how can we achieve the reliability required by the satellite?" His ultimate goal obviously cannot be just four satellites Given China''s infrastructure level, the value of constellations like OneWeb or Starlink that are directly oriented to civilian ground terminals is indeed questionable. But even as a communication bridge between other satellite networks, the number of terminals connected to medium and low orbit communication satellites cannot be underestimated. Shen Junrong had already guessed this, but after hearing this, he realized that he seemed to have greatly underestimated the ambition of the young man in front of him. He stared blankly at the paper filled with formulas in his hand for a while, then sighed softly: "When you proposed to the Science and Technology Commission to establish the Equipment Industry Department, I felt that you had a long-term vision and would not stop at trivial matters..." "The result now seems to be a bit underestimated..." Shen Junrong''s last year as deputy director of the Science and Technology Commission coincided with the time when Chang Haonan first entered Ding Gaoheng''s field of vision. The first and only time the two met before was at an enlarged team meeting to discuss whether the Equipment Industry Department should be established. At that time, the latter could only be regarded as a young technician who had a certain influence on decision-making. But in just a few years, it has grown into a towering tree... After the short emo, Shen Junrong quickly returned to the topic: "Now that the technical feasibility has been determined, the next step is the specific plan." Having said this, he was suddenly silent for a while when he should have relaxed. Then he stood up and walked to the office window with his hands behind his back: "The News Center has prepared the script and a full broadcast plan, but it has not yet been finalized whether the entire mission will be included in the live broadcast plan." "The current hesitation of superiors is that since the launch of the ChinaSat 7 communication satellite failed, due to safety considerations, the space launch mission will no longer be broadcast live in principle... But the nature of the mission this time is different after all, plus there are It is an excellent content to maintain the in-cabin picture for a long time. If all the broadcast pictures are used, the publicity effect will be greatly reduced..." Hearing this, Chang Haonan suddenly became energetic: "The live broadcast does not necessarily need to be at the launch site. It can also be carried out at the receiving terminal of the Qingluan constellation. Anyway, the focus is on the continuous images in the cabin... In addition, the relay communication maintenance time is about 30-40 minutes, but it still needs to be pinched. Remove some sensitive content that is inconvenient to display, so the best way is to delay the quasi-live broadcast for 8-10 minutes, so as to leave an estimated 20 minutes of content. "I have seen the indicators of the image and voice system in the cabin of the Shenzhou 5 spacecraft. With the performance of the Qingluan constellation, the data transmission flow can be guaranteed to be smooth throughout the entire process. In addition, Comrade Guo Lin also mentioned the weather problem in Beijing to me, so we A preliminary plan will be kept in Haojing, but two teams need to be dispatched accordingly just in case..." (End of chapter) Chapter 1091 satellite attitude maneuver Chapter 1091 Satellite Attitude Maneuvering October 15, 2003. Early in the morning, 0:30. Dongfeng Aerospace City. It''s late at night in the northwest in mid-October, and the temperature is already a bit chilly. Chang Haonan was wearing a coat and standing in the slightly deserted command and control center hall. At this time, it had been less than nine hours since the launch of Shenzhou 5. Many staff were still inspecting the equipment over and over again and did not appear here. And 1,500 meters away, the lake-blue launch tower stands tall, pointing straight into the sky. Three sets of rotating platforms are like powerful arms, hugging the nearly 60-meter-high Long March 2F Yao-5 launch vehicle. Of course, for safety reasons, the control center does not have direct access to the outside window. Chang Haonan could only see the situation at the launch site through one of the six large screens in front. However, the ship and arrow combination was not the focus of his observation. In fact, he originally planned to return to the capital after the last full-scale training two days ago and go to the Tanzhou Measurement and Control Station to personally command the Qingluan Constellation to perform attitude maneuvers. After all, in the space city, it really can''t play any direct role. In the end, the superiors made the decision, saying that Comrade Chang Haonan, as the senior commander and basic R&D personnel of the project, could not play a direct role even in Tanzhou when the satellite was already in the sky. It was better to follow the usual practice and follow the other projects. The system director stayed at the launch center together. Of course Chang Haonan knew that this was the organization''s intention to allow him to witness this iconic moment for all of China. But having said that, there is actually nothing wrong with what the superior said. He is not a professional orbit controller. No matter how capable he is on the ground, there is nothing he can do about the spacecraft that has already entered orbit. So, I just stayed like that. Moreover, when the times developed to 2003, the communication network in the atmosphere had already developed relatively well. Even if he was at the command and control center in Suzhou, he could still see the working conditions of the four Qingluan satellites At this time, it was displayed on another of the six large screens. Also presented were instructions from Danju Station. To a certain extent, it is equivalent to "live broadcast" using a luxury dedicated line. If necessary, he could even contact the other party to issue instructions. "Is the attitude maneuver of the relay constellation about to begin?" At some point, Shen Junrong had arrived behind Chang Haonan. As the general person in charge of the manned space engineering measurement and control system, he actually faced the same situation as Chang Haonan in the last period before launch. Intellectually, I felt that I had to do something. However, front-line tasks and personnel allocation are very fragile. If an old man like him is involved, it may not be helpful. So I just came to Chang Haonan, ready to talk to someone to relieve the anxiety in my heart. Chang Haonan nodded, but his eyes did not leave the big screen in front: "In half an hour, Star 02 will enter the attitude maneuver range." As a relay communication satellite, the Qingluan constellation itself can also forward control signals, so it is less restricted by measurement and control resources. However, the determination of the attitude and position of small satellites is highly dependent on magnetometers. For the sake of orbit accuracy, it is still necessary to avoid performing operations in high latitudes as much as possible. Therefore, the time window set aside for each satellite is not too large. In a few corners a little away from the two, dozens of media staff were fiddling with the equipment in their hands. Although the live broadcast plan was officially abandoned during the last joint training process, Chang Haonan''s suggestion was still adopted. After confirming the success of the launch mission, Station C will broadcast a special program in the evening of that day to review the entire launch process in a fully recorded and broadcast manner. And, that''s not all. The broadcast time of the program will coincide with the spacecraft entering the 8th and 9th laps. This is the stage in the plan that is most suitable for relay communication testing. Therefore, after reviewing the launch-orbit process, the program will seamlessly connect to a quasi-live broadcast delayed by 8-10 minutes, showing the situation inside the spacecraft directly to people around the world. In this regard, Shenzhou 5 has a good one. That is, the astronauts will not enter the orbital module throughout the entire process, but will always stay in the less sensitive return module. Therefore, the content that needs to be cut out is mainly limited to part of the voice during the world call, rather than the picture. This saves you the trouble of coding in the middle. It can be said that the only question next is whether Chang Haonan and his "Qingluan" constellation can stably maintain sufficient relay communication time... At one o''clock in the morning, Qingluan 02 took the lead in entering the pre-planned maneuvering range. "Attention all units, based on the Haojing orbit monitoring calculation, the attitude adjustment path of the target aircraft will be confirmed below..." Zhang Weiyong''s voice came from the headphones. Controlling a satellite is not about driving a car, and it is definitely not about letting technicians directly control it with a steering wheel or joystick. Instead, commands are input into the control program and then executed by the satellite. And now, it is the last confirmation before the order is issued. At this time, Shen Junrong next to him also picked up another earphone and put it to his ear. Originally he was just listening casually, but not long after, he showed a slightly surprised expression. "Your posture maneuver is taking a sinusoidal path?" As he spoke, he turned to look at Chang Haonan, who was looking at one of the six screens intently. This maneuver of the Qingluan system does not involve orbit changes, so the "path" here does not refer to changes at the orbital level, but the relationship between angular velocity and time during the attitude adjustment process. "yes." This sudden question suddenly relieved Chang Haonan''s pressure a lot. He took off his headphones and explained to Shen Junrong:: "Although the trapezoidal path has the highest utilization rate of time and actuator performance, there are sudden changes in angular acceleration, which may affect the satellite''s workload, such as solar panels or liquid fuel in the tank. The sinusoidal path will have a negative impact in this regard. Its easier to control. As an expert in this field, the latter certainly understands the differences between different path plans, so Chang Haonan''s answer did not resolve his doubts: "But I have seen some of the design parameters of your satellite. It is not the kind of large flexible structure satellite that is easy to cause divergent vibration. The size and capacity of the fuel tank are very small... and it should be almost full at the moment, so there is no need to Consider the liquid sloshing problem? The trapezoidal path, as the name suggests, simply and crudely provides three constant acceleration values ??during the attitude change process, allowing the spacecraft''s angular velocity to undergo three processes: uniform increase, uniform motion, and uniform deceleration. It is the simplest control principle that can be understood after studying high school physics. It is also the least likely to cause problems. Therefore, although there are many shortcomings, when the conditions are met, the ladder path will basically be chosen. The integral of the sine function is a cosine function, which means that the change of angular acceleration is more complicated, especially for small MSIs with limited performance of actuators and control mechanisms. The choice of Qingluan constellation seems to be a bit trouble-free. But this time, Chang Haonan did not answer immediately, but just smiled mysteriously: "Mr. Shen, you will find out later..." Shen Junrong was stunned when he heard this, and then he also smiled. Then he stopped talking and put an earphone to his ear again, waiting for Chang Haonan''s performance. While the two were discussing the problem, Qingluan 02 Star had already begun its attitude adjustment maneuver. In space, it is naturally impossible to have a camera staring at a satellite. The small satellite project itself has little promotional value, and we will not make a 3D schematic diagram just for the sake of intuition. Therefore, what is displayed on the screen at this time is only the attitude angular velocity curve returned by the sensor and the modal coordinate curve. As for the satellites movements Then you can only rely on your imagination. As Zhang Weiyong issued the attitude adjustment command, the ordinate of the angular velocity curve gradually began to grow upward from 0, drawing a sinusoidal function curve on the coordinate system. Later, the modal coordinates began to be given. However, compared with the angular velocity curve, which has a nearly perfect fit, if you look closely at the modal coordinate data, you will find that it contains a lot of irregular fluctuations that look like noise. This is the flexural vibration that Shen Junrong mentioned before. However, perhaps because of the sinusoidal path, the amplitude in front of you will not have any impact on the satellite itself. He could even see that after the satellite''s angular velocity reached the maximum value, that is, after the angular acceleration returned to zero, the vibration had entered a convergence state. Shen Junrong looked at Chang Haonan next to him, not knowing what was special about this. He even knew what was coming next In the second half of the posture adjustment, the angular acceleration reappears (negative acceleration), and the vibration will be strengthened again. Until the entire adjustment process is completed, the vibration will slowly return to zero in the next 8-10 minutes or even longer. But Chang Haonan did not look away. He just pointed at the screen and signaled Shen Junrong to continue reading. But when the latter returned his attention to the curve on the screen, he stood frozen on the spot. When the angular velocity starts to decrease again, the vibration level shown on the modal coordinate curve does not increase again. Instead, it continues to weaken. After another 120 seconds, Qingluan 02 finally positioned itself in a new posture. The vibration of the space-borne accessories completely disappeared almost at the same time... There was no subsequent gradual weakening process as he expected. Don''t underestimate this difference. In addition to affecting the working status of the equipment and the star itself, flexural vibration may also be coupled with orbital translation, thereby affecting the satellite orbit. If the impact is large, after the attitude adjustment is completed, an orbit adjustment may even be needed to get the satellite into a suitable working condition. And like the Qingluan 02 star in front of us, the vibration ends almost simultaneously with the attitude maneuver, so this situation can almost be completely avoided. only Even with the size of a 100kg small satellite and the sinusoidal path, this action characteristic is a bit outrageous. Fortunately, at this time, Chang Haonan gave a further explanation just right: "The advantage of the sinusoidal path is not only to weaken the vibration caused by angular acceleration, but more importantly, there is no instantaneous mutation from the positive maximum value to 0. In other words, the induced vibration is more regular... So, we are On the Qingluan series of satellites, active vibration suppression technology from the aviation field has been tentatively applied. "And now it seems that the effect is pretty good..." (End of chapter) Chapter 1092 Feitian Chapter 1092 Flying to the sky The explanation on Chang Haonan''s lips was an understatement. But even if Shen Junrong is not an expert in the field of satellite structural design, he can still imagine how complicated calculations and exquisite designs are hidden behind this simple rhetoric. Although there are only a few small satellites weighing hundreds of kilograms, some of the technologies included are no less than those of large satellites weighing several tons. However, he did not ask for more specific technical details. First of all, it is not my professional scope. Secondly... The command and control hall of the launch site sounds very grand, but it is actually a semi-public place. Although it is impossible to come in and out casually, the media and even some organized visiting groups can come in. This is not the place to discuss issues in depth. "So...this is also preparing for the future relay communication network?" Shen Junrong asked a less sensitive question while looking at the time displayed on another screen next to him. One hour and twenty minutes. As far as attitude adjustment is concerned, this is already very efficient. "That''s not true." Chang Haonan shook his head: "Even if it is a complete relay communication network covering the world, the main force will be hundreds of kilograms, and the maximum cannot exceed one ton of small and medium-sized satellites. In fact, it will not face the problem of excessive flexural vibration that affects the working condition of the equipment. "That" Shen Junrong looked curious. "Be prepared for any trouble..." Chang Haonan put down his headphones as he spoke, stood up and prepared to stretch his muscles. The technical indicators of the four satellites of the Qingluan constellation are exactly the same. The successful completion of attitude adjustment No. 02 has verified the feasibility of the entire technology. The risks and pressures of the next three satellites will be much smaller. At the moment, the mainstream structure of satellites is still in the form of a central rigid body and a flexible attachment. However, as the functions of spacecraft continue to diversify, the structure will develop to be fully flexible sooner or later. For example, Japan plans to launch ETS-VIII in 2005-2006. The engineering test satellite has a deployable antenna with a size of about 20 meters on one side, which is almost completely inconsistent with the traditional configuration. " "In the future, larger satellites may adopt a truss structure like the International Space Station. The current solution is to use viscoelastic damping rods to achieve passive vibration suppression, but the satellite is limited by its own size and cannot There may be a central rigid body of large enough size, and it is difficult to meet the stability requirements of the system by passive dampers alone..." In a word - It will definitely be useful in the future, so lets test it now as a technical verification. This idea was actually very familiar to Chang Haonan when he was working on the turbofan 10. The entire model of Turbofan 9A was almost tinkered with in advance like this. Luan Wenjie had been the deputy director of the Science and Technology Commission, so he was used to this, so the Qingluan Constellation project was passed as usual. But for Shen Junrong, who has less exposure to the aviation business, it still seems a bit radical. The old man stared at the two pictures on the screen that had returned to stability for a long time before finally accepting Chang Haonan''s statement. "Okay...if our space station also uses a truss structure in the future, we may also need this technology to emit heat..." He thought so. Then when he was about to say something, his whole body suddenly trembled and he coughed violently. At this time, Chang Haonan suddenly remembered that after the success of the Shenzhou-5 mission in his previous life, Shen Junrong seemed to be hospitalized due to long-term and high-intensity work... At the same time, in the media preparation area located in the corner of the hall, several staff members have also debugged the equipment and are testing the viewing effect against the interior of the command hall while waiting for the next important time node. Although there were still about three hours to work in between, no one was willing to close their eyes and rest for a while Soon, the first Chinese will leave the earth and enter space. China will also become the third country in the world to independently master manned space technology. At this juncture, let alone rest, even blinking would feel like a waste. Soon, a reporter from station C noticed Chang Haonan and Shen Junrong who were communicating. "That person over there... seems to be Chang Haonan, Professor Chang?" "who?" The companion next to him obviously didn''t react. "The chief planner of the Aerospace Power Group, the one who won the Fields Medal before... is said to be one of the most popular candidates for this year''s academician election..." The first person replied intently: "If I can be selected, I should be the youngest academician..." The latter also thought of the name at this time, but was still a little confused: "But...he is also related to Shenzhou 5?" "Who knows... It''s not surprising for those of them who are engaged in mathematics to participate in any project." The reporter said as he took out the interview plan from his coat pocket: "After the launch mission is over, I am going to find an opportunity to interview him..." Two hours later, it is three o''clock Beijing time. With the completion of the attitude adjustment of the last Qingluan 01 star, the entire relay communication constellation has finally completed its preparation for manned space missions. Oddly enough, before Chang Haonan was focused on the satellite, he didnt have any obvious feelings, but now that the constellation was ready, and after taking some time off, he looked back at the rockets on the big screen that were getting ready to go, and his mind became more turbulent for no reason. Some tension. At this moment, he finally understood why Shen Junrong wanted to come to his side to chat for a while. However, as a technician who is outside the 921 project, Chang Haonan can only endure and wait for the launch moment to arrive... At 5:20, the astronaut departure ceremony was held in the Wentian Pavilion of the astronaut apartment, and the three astronauts of the first flight echelon made a public appearance. "Comrade Commander-in-Chief, I have been ordered to carry out the first manned spacecraft mission. The preparations are complete and ready to go!" The astronaut''s powerful words rang out. But the crowd around them was silent. Only occasionally there was a crisp shutter sound. Everyone standing here knows it. Although the reliability of the entire system has been optimized during design This is despite four successful unmanned tests. Although the state of the ship and arrow assembly has been adjusted to the best. although There may be ten thousand reasons to ensure the safety of this mission. But no matter what, manned spaceflight must be accompanied by huge risks. Especially at this time. We are all engaged in science, so naturally we are not superstitious. But it is indeed impossible to say that the Columbia accident at the beginning of the year had no impact on everyone''s psychology. Even Chang Haonan, who was located in the command center, was inevitably affected by the atmosphere at this time, and his palms became sweaty. On the contrary, the astronaut himself looked normal. After a brief greeting and interview. At 6:15, with the assistance of the staff, the astronauts entered the return capsule of the spacecraft and began various in-cabin inspections and preparations before launch. Over the next two hours, about 100 more operations need to be performed. A screen in the command center showed that his physiological parameters were all normal. Even the heartbeat remained at the usual 60 beats per minute. Faced with this number, Chang Haonan had nothing else to say except "admiration"... 8:30. "Attention, everyone, I am number zero, I will be ready in 30 minutes..." Commander Zero''s voice sounded. From this point on, all major systems such as astronauts, spacecrafts, rockets, launch site systems, and navigation area measurement and control communication systems must obey his orders. Leaders who were watching the launch mission entered the hall one after another. The air in the entire scene gradually solidified. At this time, the three groups of rotating towers that were originally tightly closed have all been opened, revealing the slender and graceful figure of the Shenzhou 5 ship and arrow assembly. 20 minutes before launch. Twelve measurement and control points, including four maritime survey ships, and two remote sensing centers in Danju and Hokyong respectively conducted the last situation report before the launch. Everything works fine. 15 minutes before launch. The refueling system stopped working, the rocket was unlocked, and the last workers on the tower were evacuated. Five minutes before launch, the commander-in-chief finally confirmed that all systems and equipment were in good condition, and finally confirmed the flight parameters. 1.5 minutes before launch, the rocket''s power supply is transferred from the ground to the arrow. This is also the last step before launch. Next, there is a short but long wait... 90 seconds is like 90 hours. Even as a bystander, Chang Haonan felt a little dazed. His eyes were fixed on the scene in the return capsule, but his mind was already wandering. "5, 4, 3, 2, 1..." It wasn''t until Commander Zero performed the final countdown that he was brought back from his thoughts. When the final command to "launch" was given, Chang Haonan noticed that Shen Junrong''s hands not far away were suddenly clenched into fists... As the screen of the return capsule trembled slightly, on another screen, the rocket soared into the sky amidst the earth-shaking roar, dragging orange-red flames and flying rapidly into space. This is not the first time Chang Haonan has seen a similar scene. But only this time, he even forgot to breathe for a moment. A few seconds later, the exact time of this launch came back to my ears. "Launch time, 09 hours, 00 minutes, 03 seconds, 497 milliseconds..." (End of chapter) Chapter 1093 Network connected Chapter 1093 Network connection The successful ignition is just the first step in the long journey of the Shenzhou-5 mission. Therefore, the atmosphere in the command and control hall did not relax at all as the rocket took off. In the guest seats at the back, several people had raised their hands, obviously ready to applaud, but after noticing the serious atmosphere around them, they stopped. "Dongfeng, program turn!" A few seconds after launch, the first control command sounded. The rocket then changed from rising vertically to climbing at a 45 tilt to the east. At the same time, due to the change in the angle of view of the rocket relative to the camera, a clear cloud of white smoke suddenly appeared behind the tail nozzle and quickly grew longer. In just a few seconds, the entire arrow body was almost completely covered. For those who are watching a rocket launch for the first time, this is definitely a very nerve-wracking moment. Chang Haonan even vaguely heard a few short exclamations coming from behind him. However, the worrying situation did not last long. "Suzhou, optical tracking is normal, Dongfeng, flight is normal!" "Qingshan, USB radar tracking is normal..." Clear passwords were still being issued as usual. Although most of the audience at the scene were laymen, the word "normal" was not difficult to understand. The atmosphere also returned to calm. However, the attempt to manned space flight is destined to not go without incident. Many details cannot be completely verified by unmanned spacecraft... 120.17 seconds after the rocket was launched, the escape tower separated from the rocket body. I don''t know if it was affected by this action, but the picture returned by the camera in the cabin suddenly began to shake violently. Judging from the amplitude alone, the extent does not seem serious. At least it won''t have any impact on rockets or spacecraft. But the astronaut lying motionless on his seat made people a little worried. At this time, the spacecraft is still in the fairing, and only relies on the lights in the return capsule to provide illumination. The reflection caused by the spacesuit mask, coupled with the camera''s resolution is not particularly ideal, making it difficult for ground staff to clearly see the astronauts'' facial details. In fact, objectively speaking, the total time from the launch of the spacecraft to its final entry into orbit is less than ten minutes. During this process, the astronauts wore heavy space suits, were fixed to their seats, and had to endure the continuous high G forces and vibrations caused by acceleration. It''s normal to be motionless. But people on the ground obviously couldn''t take it so lightly. In particular, some comrades at the launch position have basically completed their work and have free time to look at the pictures on the screen in front of them. As a result, I became even more nervous... Actually, don''t talk about anyone else. As a person who has read the memoirs of astronauts, Chang Haonan cannot be completely normal when faced with this situation. It can only be said that there is no problem with the decision not to broadcast the launch process live... And next, there is a series of continuous actions. 140 seconds, throw the booster. 161 seconds, primary and secondary separation. At this time, the low-frequency vibration in the cockpit screen had ended, but the astronauts still maintained their previous actions. Fortunately, the team responsible for biological information monitoring did not make any report, indicating that there was no major problem. Chang Haonan glanced over there with a little curiosity. Relying on his extraordinary eyesight, he discovered that even at this time, the astronaut''s heartbeat was still at a level of less than 70 beats. "Throw the fairing!" At 9:03:20, 200 seconds after takeoff, the launch vehicle completely left the atmosphere. The fairing originally used to protect the spacecraft lost its function, split into two halves longitudinally along the rocket body, and was thrown away. Unlike most bits and pieces that are bound to burn to ashes in the atmosphere, fairings can fall to the ground in most cases. Due to its high enough strength, it is possible to maintain structural integrity. It has even happened that the fairing remains were picked up by the masses and then turned into a rainproof shelter at the speed of light before being found by the relevant departments. In the end, I had to let it go. Of course, these are all things for later. Now, Shenzhou 5 is directly exposed to the space environment for the first time. The sun also shined through the portholes and onto the astronaut''s face. The image of the inside of the helmet''s visor soon became clear. At one point, almost everyone saw it. The astronaut blinked slightly. I dont know who it was, but suddenly shouted excitedly: "Look! He blinked!" Although it was only the sound of one person, it seemed to vent the emotions of everyone present - the cold data provided by the sensors was one thing, but seeing the astronauts'' movements with one''s own eyes was another. Now, everyone''s hearts hanging in the air have finally fallen to the ground. Soon after, the Daocheng Measurement and Control Station sent a report. "It was detected that the spacecraft entered the predetermined orbit, and the ship and arrows separated!" Being able to successfully enter orbit basically means that there will be no major mistakes in the launch process. So this time, there was finally a brief burst of applause in the command and control hall. Of course, this is still not the time to celebrate. Next, the spacecraft will briefly leave the signal transmission range. If it can be accurately captured by the next measurement and control point, it will be completely certain that the spacecraft is operating correctly. Soon, the picture from inside the cabin was cut off, leaving only the radar data from several other measurement and control stations that were still changing. Chang Haonan noticed that Shen Junrong beside him had almost held his breath. Whether the measurement and control network he has presided over and built for more than ten years can truly work will be proven in the next twenty minutes. However, new changes have appeared on the display console in front of Chang Haonan. The picture from the Tanzhou Remote Sensing Center showed that the number of accessible terminals displayed in the Qingluan constellation suddenly changed. The first few that have been connected are undoubtedly the four Qingluan satellites themselves, the Haiyang-1 satellite, the Tanzhou ground station, and the Haojing ground station that was transferred through the stratospheric airship. The new batch of terminals that have just been searched and have not yet entered the communication network are undoubtedly from Shenzhou 5, which has not yet flown out of the relay working area. Of course, there are too many things to complete in the first two laps after entering orbit. Therefore, the first relay communication test will not officially begin until the third circle around the earth. Subsequently, according to the continuous changes in the satellite group''s position relative to the spacecraft''s orbit, the access time reaches its maximum on the 8th and 9th laps. However, no access is still no access. If there is a signal, it means that everything matches the previous calculations. This is certainly not as convincing as having the final word captured by the measurement and control points directly. But at least it''s circumstantial evidence. Therefore, Chang Haonan gently patted Shen Junrong and showed him the content displayed in front of him. The latter was stunned for a moment, but soon saw the clues and couldn''t help but nodded slightly. The body that had been sitting upright finally relaxed a little. It was not until about 9:31 that the "Yuanwang" 2 survey ship located in the South Pacific sent a report and successfully captured the spacecraft information. After a few seconds, the voice and images in the cabin reappeared on the big screen. According to the plan, at this time, the astronauts should communicate with the ground for the first time to determine the status of themselves and the cabin. Perhaps he sensed the mood of the people on the ground, so he added a special sentence after connecting: "I feel good!" The ground medical supervision team also confirmed that the astronaut''s physical condition was normal. Immediately afterwards, the commander-in-chief of the manned aerospace project left his seat, walked slowly to the command podium, and slowly swept his eyes across the entire control hall. At this moment, all experts, leaders, engineers, media personnel... Except for a few people who still had work on their hands, all eyes were focused on him, waiting for the long-awaited result. "I declare that the launch mission of the Shenzhou 5 manned spacecraft is a complete success!" The commander-in-chief''s tone was calm and solemn. In an instant, the emotions that had been suppressed for more than half an hour completely burst out. Huge waves of cheers and applause suddenly echoed throughout the hall. China''s manned spaceflight dream has lasted for 11 years even from the time when Project 921 was established. And if the earlier 714 project is included, it will take more than 30 years... Among the jubilant crowd, there was a colonel in military uniform, who stood out among the generals around him. He didn''t cheer or even get up. He just looked at the big screen in front of him with some emotion. Li Qinglong. The first batch of astronauts selected to go to Russia for training that year. He is also one of the first two people in China to obtain an international astronaut certificate. However, since the requirement of Project 921 is to "allow China''s own trained astronauts to ride on China''s self-developed spacecraft to realize the thousand-year dream of flying into space," as a "returnee from overseas", it can be said that he is destined to miss this first space mission. And in the future, as the age gradually increases, the probability of being selected will gradually decrease. As an astronaut coach, it would be a lie to say that I have no regrets at all. But now, looking at the students who have successfully flown into the sky in front of him, he still feels almost the same glory... Apart from him, Chang Haonan did not get up to celebrate. For many technicians, the launch of the spacecraft into orbit marks the end of a phase of work. But for him, his mission has just begun. (End of chapter) Chapter 1094 Non-stop live broadcast in the cabin! Chapter 1094 Non-stop live broadcast in the cabin! After confirming that the spacecraft successfully entered orbit, Dongfeng Space City''s external public communications were restored. Nearly a hundred media outlets, which were already ready to go, broadcast the rebroadcast content in text or images in the shortest possible time. At 12 noon, Station C''s News 30 took the lead in broadcasting the news about "Shenzhou 5 was successfully launched and my country embarked on its first manned space journey." However, this was just a routine midday news item. As a result, the whole thing is quite restrained, lasting only about three minutes. The only scenes involved are rocket ignition, booster separation and the commander-in-chief announcing the successful launch... It was reported, but not fully reported. Especially for many people who have been waiting for it for a long time, it is even more exciting. Like some unscrupulous author. I have already told you what plot will be written later, and I have used various means to build up the anticipation. As a result, the update is very slow, which is very uncomfortable. Fortunately, C is quite conscientious in this regard. Although the noon report was not long, it also made it clear that after the news broadcast, there would be a special report on manned spaceflight that lasted about an hour. It can be regarded as satisfying the requirements of domestic and foreign enthusiasts, as well as some people in the industry... Of course, it is also a test for the work of Chang Haonan and others... According to the plan, everything went on without any surprises. 11:46 p.m. Chang Haonan, who had already completed preparations, picked up the intercom and ordered the Qingluan satellite group to formally access and forward the S-band communication signal sent by Shenzhou-5. In just a few minutes, the image content after two relays was simultaneously transmitted back to the Tanzhou ground station in Beijing and the airship working in the stratosphere at an altitude of 35km. The latter then sent the signal through the third relay to Haojing Ground Station and Dongfeng Space City. The actual latency of the entire process is about 270 milliseconds. Soon, the situation inside the spacecraft was once again displayed on the large screen in the launch command and control center. The picture quality is clear and consistent. According to the schedule, this will happen to be the astronauts'' meal time. In a state of weightlessness, inconspicuous food residue can cause serious trouble. Therefore, it is impossible to place food on a plate or similar open container as on the ground. Only refer to the design of toddler food to ensure maximum safety. Or just make it all into chunks so you can eat it in one bite. Therefore, the first picture displayed on the screen was that of the astronaut comrade squeezing a packaging bag that looked like sucking jelly. However, it should be filled with pre-made fish-flavored shredded pork or kung pao chicken. For him, this has been the content of countless trainings. But this was the first time for many of the comrades on the ground to meet. Therefore, this "macho man sucking jelly" action caused a burst of laughter, which unexpectedly made the atmosphere in the measurement and control hall relaxed a lot... At this time, Shen Junrong turned his head and glanced at Chang Haonan next to him. The latter was standing with his hands behind his back, looking at the screen with interest. In the original timeline, because this period was still in a communication blind spot, the widely circulated scene of the astronauts eating only had a brief clip of swallowing lumpy food. Obviously it is not as effective as the **** mukbang in front of you. "Comrade Haonan, Comrade Haonan!" After calling twice in a row, Chang Haonan turned his head. "Mr. Shen?" Shen Junrong pointed to the time displayed next to him: "Why did you connect in advance?" You know, there are still about 20 minutes before the spacecraft enters its third cycle around the earth. The duration of each Shenzhou 5 lap is about 90 minutes. In fact, the range that ground measurement and control stations/measurement and control ships can cover is quite limited. Take Kashgar Station and Karachi Station with similar longitudes as examples. Although it is already the westernmost point of China''s territory, it is not actually too long earlier than the Dongfeng Measurement and Control Station. The spacecraft target was not captured until 10:31 on the first lap, 9 minutes before the end. As a result, the second lap was almost 20 minutes ahead of schedule. This is equivalent to extending the effective communication time to twice that of the past. This does not include the part that will continue to be effective after leaving the island city measurement and control station. Obviously there are some differences from the previous plan. "The plan must be written more conservatively, leaving ourselves some room for maneuver..." Chang Haonans answer highlighted a straightforward one: "It may be because there are too few service objects connected to the network, so the effective acceptance angle of each antenna is larger than originally estimated, so it is equivalent to increasing the estimated coverage area." "If calculated according to the current situation, by the 8th and 9th Earth orbiting cycle, the effective connection time will be about 50 minutes..." Faced with this answer, Shen Junrong could only respond with a helpless smile... In the next few consecutive cycles, there are no special tasks, and the data transmission process is also quite smooth. Only at 3:54 p.m., when Shenzhou 5, which had entered its fifth lap, made its first maneuverable orbit change to simulate avoiding space debris or docking a spacecraft, the signal fluctuated for a moment. However, it did not reach the level of interruption, but the delay instantly increased to more than 500ms. In this way, the time quickly came to 7:30 in the evening. That is the time when the special program is broadcast. Considering that the recovery of the spacecraft has not been completed after all, it is impossible to open the champagne in advance for the program content. It is still in the form of reports and interviews. However, compared to the noon newsletter, it provides more sufficient content. There are also two guests to answer some questions raised by the host. However, at this time, the image data that can be provided is actually relatively limited. It''s nothing more than some additional scenes in the command and control hall, as well as pictures of the astronauts working in the previous few laps of flight. In order to fill the entire Q&A session, the screen behind the host must play these contents multiple times. For those who are interested, the focus of this meeting is originally on the interview content, and those scenes will not be boring even if you watch them several times. And in a private house in Lianhai City. An old man in his sixties wearing a lieutenant colonel uniform was sitting like an old monk, staring straight at the screen in front of him. Until the voice of the little grandson next to me reached my ears: "Grandpa, why do you always play those few paragraphs later?" "because" It was only then that he realized that his vision had been blurred by tears... The old man''s name was Meng Linsen. On the surface, he was just an ordinary veteran cadre who transferred from an Air Force pilot to the Lianhai Materials Bureau and then retired. But in fact, he was one of the 19 astronauts selected for Project 714 30 years ago. It can be said that they are the earliest batch of "preparatory astronauts" in China. However, at that time, conditions were indeed insufficient for manned spaceflight. Therefore, in 1975, the project was completely discontinued. Meng Linsen and a dozen of his colleagues were also ordered to return to their original troops, destined to miss the universe in this life. But today, nearly thirty years after the dream was shattered, I have the opportunity to see Chinese astronauts successfully enter space... Meng Linsen took a deep breath and adjusted his emotions: "Because the spacecraft is rotating outside the earth, it can only communicate with the ground when it passes above us..." He gestured with his hands while explaining the basic principles of the spacecraft to his confused grandson. However, before he could finish his words, he heard the host''s voice coming from the TV: "Next, we will witness with you how astronauts work and live in space..." (End of chapter) Chapter 1095 The Chinese people’s plan is weird Chapter 1095 The Chinese peoples plan is weird almost at the same time Across the ocean. Washington, DC, 2 Independence Square. NASA Administrator Sean O''Keefe is reclining in his office chair, holding an analysis document relayed from the Office of Foreign Relations. The content is naturally an analysis of China''s first manned space launch mission about ten hours ago. As a veteran aerospace executive and space research institution, NASA should be familiar with the task of completing such a report. After all, according to relevant treaties, before a space mission is launched, the country or institution to which it belongs needs to apply or report details such as launch time and orbit conditions in advance to avoid a "space crash". Basically, the only thing that can be kept secret is the purpose. As for Shenzhou 5, a manned spacecraft that has been promoted by China for a long time, there is nothing worth covering up in this regard. Although China''s first manned space flight is more mature and longer than the missions carried out by Yuri Gagarin or John Green, it is still unlikely to carry out any complex scientific research missions. It basically verifies the role of humans in space. activities and accumulate experience in the management of large-scale aerospace programs. Therefore, Director O''Keefe did not pay special attention to the report itself, or to Shenzhou 5 itself. In contrast, it was the impact of this mission that made him care more - 2003 was not a good year for the entire aerospace industry. Needless to say, the Columbia disintegrated and crashed at the beginning of the year. Although more than nine months have passed, the investigation into the cause of the accident is still ongoing. The current preliminary conclusion is that holes appeared in the outer shell of the space shuttle, which caused ultra-high temperature gas to enter the space shuttle during re-entry into the atmosphere, eventually leading to tragedy. However, the origin of the hole itself is still controversial. Although O''Keefe has let some media suggest that a similar hidden danger had been discovered on the Columbia as early as 1999, but it was not taken seriously at the time in order to try to shift the blame to his predecessor, Daniel Golding. But for him, such a major disaster while in office is obviously a scandal that cannot be covered up at all. This is not over yet. Due to the Columbia accident, the remaining three space shuttles were also grounded. The three astronauts who were scheduled to return to Earth from the International Space Station in March had to extend their working hours. It wasn''t until May that they finally waited for the Soyuz TM-10 spacecraft to take them home. As a result, something went wrong again during this mission. Although there was no serious consequence of the ship crash or loss of life, the final landing point of the spacecraft deviated 400 kilometers from the planned area and was not discovered until two hours after landing. Fortunately, the spacecraft''s requirements for the site were not as strict as those of the space shuttle, and it still maintained a normal landing attitude. When the search and rescue unit arrived, the three astronauts even climbed out of the return capsule themselves... But in any case, the continuous incidents between the United States and Russia have made people somewhat worried about manned spaceflight. In this context, if China''s Shenzhou-5 mission is a great success, it will undoubtedly form a sharp contrast. Especially for NASA, it will be more embarrassing. You must know that the reason given by NASA when it rejected China''s application to join the International Space Station project in 1994 was that the latter did not have the relevant technical capabilities, and astronauts from the United States and Russia could use each other''s spacecraft as backup, making safety issues foolproof. , there is no need for a third type of transportation to travel between heaven and earth. This didn''t seem to have much of a problem at the time. But today, nine years later, it turned into a boomerang and pierced Director O''Keefe''s back... Therefore, he was unwilling to mention more about Shenzhou 5. It''s best to pretend nothing happened. But the problem is that human exploration of the universe is one of the top political correctnesses at the moment. No matter what he thinks in his heart, he still has to come out to congratulate his Chinese colleagues. And congratulations... you will inevitably be asked questions by reporters who don''t take it too seriously. O''Keefe could even guess the problems he would face. For example, "What do you think of the decision to reject China''s participation in the space station project?" Thinking of this, Mr. Director only feels a headache How can I see it? Its not like I want to refuse! "well" He threw the report aside, closed his eyes, and pinched his forehead helplessly. At this time, there was a sudden knock on the door outside. When the director sat up again, he saw Daniel Marville, NASA''s former chief engineer and now his technical advisor, hurried in from outside. Before he could speak, the latter hurriedly put a few pieces of paper in his hand on the desk: "Xiao, I think you need to take a look at this." "Well" O''Keefe''s forward swing was interrupted, and he had to look down. It''s still materials related to Shenzhou 5. "Daniel, the secretary gave these to me just now..." As he spoke, he pointed at the first report that he had just put down, and motioned to the other party: "Technically, it''s quite satisfactory. There''s nothing worth paying special attention to. What I''m worried about now is public opinion..." "No, this time is different..." He was interrupted by Marville when he was halfway through his words: "The Chinese have prepared a...probably a live broadcast to show the astronauts working in the spacecraft..." "What kind of work can there be in the spaceship..." Almost subconsciously, O''Keefe sneered with disdain. As the head of NASA, he has also seen Russia''s Soyuz series spacecraft. Of course, Huaxia''s models are different products, but there is no difference in terms of size alone. It can only accommodate three people, and it''s very cramped. It is completely a means of transportation for traveling between heaven and earth. Even during the Soviet era, real space research was carried out in larger space stations. This is also the main reason why the United States abandoned the Mercury series of spacecraft and turned to the development of space shuttles - Larger volume and stronger carrying capacity. It can even perform some military tasks. However, halfway through, he realized that he had just missed the point. "live streaming?" Pick up the material in front of you and read it again. Judging from the temperature on the paper and the fact that it has not yet been bound, it must have been printed just now. And his expression gradually became weird. Although the work carried out by the Chinese is not worthy of attention in itself. But if it is a live broadcast...or even a quasi-live broadcast after a little processing of the picture and audio, considering that the picture resources are extremely precious, in order to ensure the continuity of the content, it is very likely that some "useful" parts will be included. For example, some details of habits shown in the communication process between heaven and earth are valuable analytical resources for professionals. "Let''s go and have a look." O''Keefe, who didn''t care much at first, had a 180 change in attitude. He immediately stood up and picked up both reports on the table at the same time. A few minutes later, the two appeared in a conference room downstairs. At this time, several other people happened to rush over. On the TV in front of the conference room, footage from China News Channel was playing Although the special program itself is not broadcast in foreign language programs, it is not difficult to get a station C channel signal for NASA. It''s just that it''s slightly delayed compared to China. This moment the cabin footage has just started to be played. As a result, everyone sat down and stared at the situation on the screen. At this time, it was just in time for the eighth lap of flight to begin. The astronauts in the cabin were obviously talking to the ground. That''s what interests O''Keefe the most. However, because there is no translation, I cannot understand it directly. "What are they talking about?" He quickly asked Hannah Geringer, the only expert around him who knew Chinese. "Uh...nothing important." Hannah shrugged: "Conversing with family on the ground." "That should be over soon... If they mention any technical points, remember to translate them to me right away." O''Keefe quickly ordered. This kind of operation is nothing new for NASA veterans like him. In the process of propaganda, Americans also like to engage in this form. However, the signal resources are limited, so we definitely cant really make phone calls for you. So it''s basically just a formality and it''ll be over in a few minutes. "Judging from the cabin environment, it doesn''t seem to be much different from the Alliance spacecraft?" Another technician next to him suddenly spoke. Marville, who was sitting behind him, shook his head: "This is their return capsule. There is no mission load originally. It is normal that there is no obvious difference... It still depends on what they call the orbital module... or the space station further down the line." China announced a three-step strategy at the beginning of Project 921, which included a long-term manned space station. So it''s not really a secret. For a time, everyone began to express their opinions on the progress of the Chinese people. A few minutes later, Director O''Keefe looked back at the TV screen. But I found that the picture seemed to be the same as before. "Is this... a repeat of the clip just now?" Since the amount of footage that can be made public is limited, reusing footage is a common practice. "no" But Hannah gave a negative answer: "They just displayed the flags of China and the United Nations, and also used special space pens to write, as well as space food... In addition, I have to admit that the Chinese people prepare a wide variety of space food..." "etc" Halfway through Hannah''s speech, she was interrupted by O''Keefe: "Are you sure these processes are coherent?" "certainly." Hannah nodded inexplicably. But in an instant, she also realized that something was wrong It has been more than ten minutes since the show started playing. NASA built a geosynchronous orbit relay satellite network covering more than 80% of the orbit as early as 20 years ago. It is not a problem to carry out high-throughput signal transmission for ten minutes or even dozens of minutes. So no one felt anything unusual just now. But this is the first time the Chinese have carried out a truly manned space mission. Judging from the deployment of the other party''s ground measurement and control station, it seems that it shouldn''t be able to sustain continuous communication for such a long time, right? "There''s something weird about their mission..." O''Keefe immediately made his judgment, then turned to look at Marvell: "Dan, summarize all China''s space launch missions from last year...no, in the past three years, and report them to me as soon as possible!" (End of chapter) Chapter 1096 Conduct aerial reconnaissance against China? Chapter 1096: Conducting aerial reconnaissance against China? After receiving the order, Marville quickly got up and left. O''Keefe also quickly returned his attention to the TV screen. However, this time, he was more concerned about the duration of the show than the content. He even took off his watch and put it aside. One minute. Two minutes In the end, this mediocre live broadcast lasted for about 18 minutes and 30 seconds before the screen was finally cut off. In the studio, it also returned to the format of a general talk show. Almost immediately after, Hannah Griinger, who had just been asked, also raised her head: "I just checked and found that during the duration of the program, the target spacecraft should be operating in the corresponding orbit from the eastern coast of China to the central Pacific region." "This result can basically correspond to the lighting situation presented in the picture." To put it bluntly, it is a real live broadcast. It is not made by splicing and editing of images. However, this somewhat peculiar location confuses many people. After all, most of the positions in this section don''t even correspond to the sky over China. No matter what kind of black technology, it is impossible to support signal broadcast for such a long time Even if there are relay satellites in synchronous orbit, it is unlikely to be positioned on the vast ocean. "I remember... China should also have a measurement and control station in the Pacific?" After a period of silence, someone suddenly asked. Signals from geostationary satellites are not easy for the ground to capture. Therefore, even for the United States, which has a TDRS relay satellite system, space-to-ground communications still need to revolve around ground measurement and control stations. However, someone soon explained: "Thanks to our... uh... efforts, they will soon withdraw from that measurement and control station. Now there is only one maritime survey ship." China''s Pacific Measurement and Control Station was built in 1996. In the following years, it ensured the completion of multiple space launch missions, including the first four Shenzhou spacecraft and Beidou-1. However, due to its sensitive location, the United States has always been worried that this monitoring and control station will become a tool to monitor its missile tests. Therefore, in 2003, the situation here is turbulent. Although the outcome has not yet been finalized, it is already difficult for the measurement and control station to function normally. Seeing that the topic was getting more and more sidetracked, O''Keefe quickly coughed twice. After all, operating behind closed doors on someone elses territory is not an aboveboard thing to do: "Although these pictures claim to be live broadcasts, there is likely to be a delay of more than ten minutes... The actual location of the incident should be directly above the territory of China. There is nothing surprising." This explanation is reasonable. After a brief pause, O''Keefe continued: "But... even so, nearly twenty minutes of continuous communication is completely inconsistent with the distribution pattern of their measurement and control stations... It shows that they must have some actions that we don''t know about in terms of aerospace infrastructure construction..." Aerospace infrastructure After hearing this word, the atmosphere suddenly became tense. Everyone immediately understood why O''Keefe was so serious. In fact, for NASA, or for the United States, simply launching a Shenzhou 5 spacecraft is not very good-looking at best. It wont pose any real threat Although it is said to be "the third country to independently achieve manned spaceflight". But the gap between the gold content of this third place and the first and second place is still a bit obvious. Mainly reflected in basic abilities. China currently has neither rockets with sufficient carrying capacity nor satellite networks sufficient to support a complete space operation system. It even lacks experience in large-scale aerospace projects. It is still impossible for most countries to choose to cooperate with them on a large scale. And there has always been nothing wrong with this idea. Whether it was the International Space Station or the cooperation between China and Europe on satellite positioning systems, they were all disrupted without any doubt. In the field of aerospace, China still can only play its own game. And it is precisely because of this "no threat" premise that Americans are willing to show some face-saving generosity. But now, everyone at NASA suddenly realizes that they do not seem to be able to control the overall situation as they imagined... If the other party is allowed to build aerospace infrastructure. Even if it is just a version with backward functions. It is also equivalent to giving other people another choice. As for the consequences of doing so... Colleagues in the aviation manufacturing industry have already demonstrated it to them once. Perhaps China itself will not pose a huge threat in a short period of time. But the other party can rely on its huge market and some magical technologies that they dont know where to come from to help other opponents who are also at the poker table... All in all, the problem is huge. It must be admitted that Marville moved very quickly. Of course, China in this era has only a few launch missions a year, and some of them are purely commercial launches of foreign payloads, so it is not difficult to make statistics. So even before the TV interview was finished, a summary sheet was placed in front of O''Keefe. But facing this form, everyone was in trouble for a while. Among the list, which is not long, there are only a few geostationary satellites that meet the requirements. And the vast majority of them have very clear functions and obviously do not meet the requirements. The only one left that is barely capable of undertaking the relay communication task is ChinaSat 22, which was launched in 2000. In fact, its more accurate name would be "FH-1". However, NASA was not sure what this abbreviation specifically referred to for a while. On the surface, ChinaSat 22 should be a civilian satellite responsible for radio and television signal transmission and basic communication services. But people in the industry basically tacitly agree that this satellite must be for military use. Marvell also saw everyone''s thoughts, but obviously had objections: "Judging from the signal characteristics detected in the past, ChinaSat 22 does not have the ability to relay communications to spacecraft. It is just an ordinary communication satellite..." "But...who knows if there are any new functions on it that have never been enabled before?" Hannah frowned immediately: "Besides, there are no other suspicious objects, right?" The former obviously wanted to say something more, but the second half of her sentence was well founded and could not be refuted. However, someone else expressed different opinions: "More than two months ago, they also carried out a launch to the MEO orbit with one arrow and four satellites. Judging from the time window, it seems even more questionable..." What this person is talking about is naturally the Qingluan satellite group. On the public type spectrum list, they are called HTS-1 to HTS-4 respectively. However, these four satellites really have no characteristics of relay satellites. Therefore, even Marvell felt that this guess was a bit outrageous: "The feasibility of using mid- and low-orbit satellites for relay communications has been proven by Iridium to be unfeasible..." Including Hannah, who had different opinions from him just now, also joined in the support: "Moreover, the rocket carrying capacity for launching them is less than two tons...which means that these four satellites only weigh less than 500 kilograms..." For a time, everyone''s opinions were divided. Fortunately, O''Keefe is still in control of the overall situation at this time: "Never mind which satellite they used..." Following his statement, the conference room suddenly became quiet. "Since it is a high-throughput space-to-ground communication...the ground station cannot escape after all." O''Keefe didn''t look up, just looked at the table and analyzed: "According to the communication window just now, the measurement and control station located in the westernmost part of their territory should be the most critical link... and it happens to be very close to Central Asia." "So I will apply to the above to conduct a reconnaissance flight over this area before their spacecraft returns!" (End of chapter) Chapter 1097 ready to return Chapter 1097 Prepare to return When O''Keefe revealed his plan, everyone else had basically the same idea - Crazy? The aerospace authorities of various countries, no matter how "civilian" they appear and are organized, are actually inextricably linked to their own military. After all, launch vehicles and ballistic missiles are often separated only by a layer of window paper. NASA is certainly no exception. In fact, the U.S. aerospace measurement and control network is jointly constructed by NASA and the Department of Defense. Therefore, it is not difficult for O''Keefe to mobilize a reconnaissance plane. Even the reconnaissance request he issued may have priority before the military units at the theater level. But the problem is... The object of reconnaissance is really too wild. The predecessor of Dongfeng Aerospace City was the former 20th Base of the General Armament Department and the first missile test base in China. Only later, with the continuous improvement of technological levels, a fixed place was no longer needed to test missile performance. Thats why it was changed into a place dedicated to serving manned aerospace projects. And sending a reconnaissance plane to scout a place like this always seems to feel like entering a nostalgic server If the history of USAF aerial reconnaissance were to be written into a book, it would probably be thicker than the history of the United States itself. There are naturally many brilliant parts among them. But the reconnaissance of China is definitely the most difficult chapter. From P2V "Neptune" to U2 "Dragon Lady", to BQM-34 "Firebee"... All kinds of new equipment, in short, a lot of them were given away. Although most of the missions are not carried out by Americans themselves, it is definitely not a shameful thing. Moreover, this is the 21st century. At least on the surface, peace and development have become the themes of the times. It is impossible for the higher authorities to agree to the request to enter the interior of China to cause trouble. Looking at the strange looks cast around him, O''Keefe also realized that his statement just now was somewhat ambiguous. "There is no need to reconnoiter their entire western region...just include the monitoring and control station in Shule within the surveillance range." The atmosphere in the conference room relaxed slightly. After all, the Shule region is only about three hundred kilometers away from Kyrgyzstan. Such reconnaissance can be conducted entirely outside the country. Still, the problem hasn''t completely gone away. As subordinates, it may not be easy for other people to object directly at this time. However, Marvilles qualifications at NASA are extremely high, and as a consultant, he is OKeefes old friend and personal consultant. Instead, he needs to pull back at this time: "Xiao, even if you don''t enter the opponent''s airspace, the reconnaissance behavior itself is a very strong provocative signal... The relationship between us and China is relatively relaxed at the moment, you see..." In this timeline, the two sides did not have a very direct conflict after 1996, especially the few years at the turn of the century, which were considered a smooth transition. Therefore, Marville''s "easing" is not an exaggeration. Moreover, this sentence has a deeper meaning. Even when we massively raised troops to advance into Central Asia, we still received support from China and used other airports to transport materials and personnel. Now, it''s not impossible to use this place as a base to attack others, but at least it should be done more cleanly... When O''Keefe heard this, he lowered his head and thought for a while. But in the end, I still chose to stick to my opinion: "In any case, the relay communication must eventually be fed back to the ground station, and no matter how high the orientation accuracy of this type of signal is, it will appear in a radius of hundreds of kilometers on the ground." "We sent a reconnaissance plane over, kept silent the whole time, and used passive reconnaissance methods to only receive but not transmit. After capturing their signals, we withdrew. Even if we couldn''t decode and decipher the specific content of their communications, we could at least pass on the signal characteristics. , to identify which satellite is ultimately transmitting signals to the ground. That''s right. In the eyes of Americans, engaging in passive reconnaissance rather than active reconnaissance is already showing the greatest sincerity. Of course, objectively speaking, this is indeed a perfect edge ball. Even if the whole world knew what a reconnaissance aircraft hovering near the border was planning to do, the airspace in Aiukhan and Kyrgyzstan was completely open to the US Air Force, and there was no problem. On the contrary, it is inconvenient for China to interfere. There is even no way to use accompanying flight interference to drive them away like in the southeast direction. Therefore, Marville said nothing more. In this way, O''Keefe''s request was quickly conveyed through special channels to the Central Command responsible for affairs in the Central and Far East. But the latter was unprepared for this Shenzhou 5 was launched at 9 a.m. Beijing time on the 15th, and the mission lasted only 21 hours in total. In other words, it will land around 5:40 a.m. on the 16th. And now it is the evening of the 15th Beijing time. The operating time left for them was less than 8 hours. However, it must be admitted that at the beginning of the 21st century, the efficiency of the US military was quite acceptable. After receiving the mission request, Central Command Commander John Abizaid quickly extracted himself from the already chaotic military affairs and allocated resources that met O''Keefe''s requirements... Later in the day. Dongfeng Aerospace City. The leaders who watched the launch mission here in the morning had already left by now, so Chang Haonan also had the opportunity to sit in the guest seats and enjoy the best view in the entire command and control hall. About an hour ago, he and dozens of other comrades here watched the entire 48-minute call between heaven and earth It''s about ten minutes longer than what TV viewers see. It can be said that the effect far exceeded expectations. In addition, the spacecraft has entered the second half of its eighth orbit around the earth and is about to begin its ninth cycle. It happens to be the time when the operation is at its most stable. Therefore, the atmosphere in the entire hall was much more relaxed than in the past dozen hours. Especially for Chang Haonan. Although the communication verification task is not over yet, the longest lasting connection has been completed, and there are just some routine finishing work behind it. Of course, it is impossible to sleep until the excitement of directly participating in the manned spaceflight project has passed. At this time, Shen Junrong, wearing a light blue overalls, also walked quickly from a short distance away. There is no trace of a 60-year-old comrade who has stayed up for almost 24 hours. "Comrade Haonan, you''re done!" The corner of his grinning mouth couldn''t be suppressed at all. Before he could stop moving his feet, he had already placed a few pages of the report in front of Chang Haonan: "The maximum communication delay is 327ms, the average communication capacity is 6.2Mbps, and the maximum communication capacity is 12.7Mbps... It is indeed much better than the performance of geostationary satellites..." The latter had received the results from Tanzhou as early as the end of the previous communication, so he did not read the specific content of the report in front of him. He just adjusted his posture slightly and leaned on the backrest: "You can''t say that...after all, the communication coverage is relatively limited, and the satellite attitude is specially adjusted for a single target..." "If you want to achieve this effect for any spacecraft, I''m afraid you will need at least 40-60 satellites, and the number of channels and antenna coverage of each satellite will have to be doubled... There is a long way to go!" Although his words were very modest, judging from his tone and expression, he was obviously satisfied with the result. Of course Shen Junrong could see this, so he happily sat next to him: "Don''t be fooled. This test is not only technically perfect, but also very influential from a publicity level... Although the scale of 40-60 satellites is definitely a dream, today''s announcement , it will definitely not be a problem to arrange a group of scientific exploration and technology test satellites for you..." "I guess this was your initial goal, Comrade Haonan, right?" All I can say is that he is indeed an experienced expert. That''s a good guess. The Qingluan satellite group is an attempt to serve as a front station for the practice series of satellites. However, Chang Haonan was no longer a newbie now. He was not embarrassed at all when his idea was dispelled. Instead, he calmly changed the subject: "This program has only been aired for less than an hour, and Mr. Shen already knows the influence?" "Of course!" Unexpectedly, when faced with this half-joking topic, Shen Junrong became very serious: "Do you know how many foreign cooperation projects our country''s aerospace industry has been disrupted by Americans either directly threatening it or secretly stumbling upon it?" "It''s not because after the Cold War, the world can only rely heavily on the United States for aerospace infrastructure. Others are worried that cooperation with us will cut off the support they receive... The live broadcast you just proposed is likely to push the entire industry to break through the blockade. ! Regarding aerospace matters, Chang Haonan probably knew some well-known events, but after all, he was not in his field, and his knowledge was not as detailed as aviation. But according to Shen Junrong, its also because the West has been closed off for a long time. Although there have been much fewer restrictions on specific technologies in recent years, at the project level, the situation has obviously not improved much. So, he followed what he had just said and asked the other party to continue talking about what happened before. And in such a peaceful and peaceful atmosphere, time soon came to the second half of the night. According to the plan, Shenzhou 5 was about to enter the preparation stage for return, so everyone in the control hall began to get busy. But at this moment, someone suddenly reported a breaking news About 400 kilometers west of Shule Measurement and Control Station, an unidentified aircraft operating at an altitude of 17,000 meters was discovered! (End of chapter) Chapter 1098 global hawk Chapter 1098 Global Hawk "UFO?" This news immediately made the entire command and control hall tense again. In particular, the commander-in-chief of the manned space project immediately changed his expression. The location mentioned in the report is really no joke. The spacecraft recovery is the same as the rocket launch. In order to avoid danger, a range needs to be determined in advance as an air control area. And because the landing trajectory is much steeper than the launch trajectory, this range will be much smaller than what was drawn during yesterday''s launch. Basically, it is a few hundred kilometers west of the landing area in central Mongolia Province. After all, further west is foreign airspace, which is really not suitable to be included in the scope of aviation control. Of course, under normal circumstances, it should be enough. But considering that the 400km world shift occurred during the landing of the Alliance TM10 spacecraft just five months ago, if everyone says they are not worried, it must be false - As the first manned space mission, it is best to eliminate any risk factors. "What about the nature of the target?" Shen Junrong, who had the second highest position at the scene, quickly asked. Thanks to the remaining large sums of money left by the Air Force in the field of aviation in recent years, China has installed several batches of S300PMU1/2 air defense missiles in advance and transformed several anti-aircraft artillery regiments in key directions into surface-to-air missile brigades. This unit under the Jincheng Military Region had just replaced its guns with cannons at the beginning of the year. Unexpectedly, it would come in handy. "According to the report of the Earth Navigation Force, it is speculated that it is a high-altitude reconnaissance aircraft belonging to the US military. It is slightly smaller than U2 or equivalent. However, the radar characteristics do not match any included models, and the target does not emit any electromagnetic signals. They are closely tracking the movement. Upon hearing this judgment, the commander-in-chief breathed a sigh of relief. Americans are indeed in trouble. But known trouble is better than unknown threats. While everyone was thinking about countermeasures, another correspondent hurried over: "Report, Jincheng Military Region Air Traffic Control Department sent to ask, can the aviation force take off now to monitor or intercept the target?" In normal times, China''s airspace use is fully managed by the Air Force. Basically, only others give way to military aircraft, there is no such thing as military aircraft giving way to others. But the priority of Shenzhou 5 is too high, and the target is not far from the control area. Taking off from several nearby airports, you basically have to pass through the control zone to reach the border. Therefore, even the aviation force has to have some concerns... Time passed by minute by minute. At this time, there are only about three hours left before the spacecraft is recovered. And the more times like this, the more calm you have to be. "If it is really a reconnaissance plane, then the other party''s purpose is probably to monitor our process of recovering the spacecraft..." After a brief silence, Shen Junrong took the lead in guessing. However, this statement is obviously not very tenable. So someone quickly expressed different opinions: "But the trajectory of the spacecraft''s return is all public, and there is nothing worthy of special reconnaissance..." "Besides, if they are really interested in this matter, then we should have discovered similar behavior during the previous missions, right?" Clear and well-founded. But this person couldn''t bring up any more valuable points. As a result, the speculations gradually began to become outrageous: "Perhaps... our air defense equipment in the western direction was relatively backward and we didn''t find the target?" Regarding the space mission itself, Chang Haonan really had no chance to intervene. But when it comes to this, he is no longer sleepy: "impossible" Chang Haonan shook his head decisively: "The Earth Guidance Force reported that the target is slightly smaller than U2, which means it is a big guy without stealth capabilities. If it has appeared around us before, then it is an old-fashioned equipment. At best, it cannot be accurately positioned, or it may be interfered with and unable to track stably. Its impossible not to find even a trace Regarding aircraft within the atmosphere, his judgment is still somewhat convincing. Therefore, everyone''s attention gathered. The comrade commander-in-chief even motioned for him to continue. Chang Haonan originally just said it casually, but at this time he was already riding a tiger and had no choice but to continue his analysis: "Looking at the other party''s trajectory...including the current time period, it doesn''t look like it is conducting pure optical reconnaissance. And the Air Force said that the target did not emit any electromagnetic signals, which means that the synthetic aperture radar has not been activated..." Suddenly he had a flash of inspiration: "Looking at it this way... the Americans may have seen the program we just broadcast, so they want to monitor our communication signals?" Shen Junrong looked like "You''re not kidding me": "One of the two receiving stations you set up is in Beijing and the other is in Haojing. Even if the Americans have more advanced technology, it is impossible for them to be targeted in Central Asia. Satellite signal two thousand kilometers away?" He has also seen the effective coverage of the Qingluan constellation. In the process of maintaining communications, the westernmost point will not cross the central Tianshan Mountains. "In fact, it really can''t be..." Chang Haonan replied: "But the decision-making cycle of our entire plan is very short. As for the Americans, they may only have a few hours of analysis time, so the other party may think that the Shule Measurement and Control Station is playing a role, so this behavior now is very reasonable... " The commander-in-chief was obviously hesitant at this time. The main reason is that the opponent''s route is completely outside the country, and the aviation force cannot really intercept it even if it takes off. "So...the other party''s reconnaissance will not yield anything?" "If the target is the communication situation of the Qingluan constellation, then I can guarantee it." Chang Haonan gave a firm answer. After hearing this, the commander-in-chief lowered his head and walked around a few times: "Let the ground guidance troops continue to monitor, and the aviation troops... are on standby for the time being!" at the same time. The west coast of the Persian Gulf. Al Dhafra Air Base. Colonel Ted Lynch flipped through the flight log with one hand and held the control stick tightly with the other hand, carefully controlling the plane''s course to gradually shift eastward. It seems that his job is no different from other pilots. However, he was not wearing any flying gear. Not even sitting in a cramped and cramped cockpit. Instead, he faced a keyboard, six screens, and a table large enough to hold a coffee cup. Apparently, this is a drone ground control station. As a veteran pilot who retired from the RC135, Lynch did not transfer to a purely administrative position or teach in a flight school after his retirement like most of his peers because of his rich reconnaissance flight experience. Instead, he became a drone ground operator through selection. Although I no longer have the thrill of being in the sky, I can still remain in the ranks of pilots in another form. The model he is responsible for is an RQ4A "Global Hawk" that was put into service just two years ago. It is also one of the first nine aircraft in the block 10 batch. Strictly speaking, it can only be regarded as a prototype, and each one is even different. It was only because I was anxious to make a difference that I was forced to serve Compared with the RC135, which is huge but has a range of only about 9,000km, the Global Hawk has an exaggerated range of 26,000km and a maximum airtime of more than 40 hours. Moreover, thanks to the complete satellite communication network, it can also fly to locations thousands of kilometers away from the control station. In addition to being limited by the take-off weight and resulting in a less comprehensive load, it can almost take over most of the tasks of traditional reconnaissance aircraft. It''s just that at the beginning, these aircraft didn''t even have perfect automatic flight systems. Fortunately, Lynch, a veteran pilot, is not one of those newbies who only know how to drive automatic equipment. Instead, he prefers the feeling of being able to control it with his own hands. Even after the system upgrade, he still retained the habit of doing it as manually as possible. Just like now. According to the original plan, they only needed to circle 50-60 kilometers away from the border to receive the target''s satellite signal. However, the equipment operator next to him said that except for a few known signals with obvious distinguishable characteristics, the aircraft did not make any valuable discoveries. Therefore, he had no choice but to continue to shift his course eastward. There is a working S-band signal source on the ground, which should be a 64N6 series radar, but as long as their aircraft does not cross the line, there is no threat. Of course, the control accuracy of drones is slightly poor, so this behavior must take some risks. And his actions seemed to be paying off. Just as the Global Hawk entered its 14th reconnaissance cycle, an S-band signal that had never been seen before suddenly appeared on the screen of the equipment operator next to it. Comply with the frequency of general heaven and earth communications. "Caught!" The operator braced himself and quickly operated the keyboard in front of him: "Maintain course...at least five minutes!" (End of chapter) Chapter 1099 Confrontation in the air Chapter 1099 Confrontation in the air S-band is an extremely common signal source. From radio communications, to search radar, to measurement and control networks, S-band may be used in everything. Of course, passive reconnaissance must be based on the nature of the signal. Otherwise, you will find that there are radiation sources in all directions, and there will be no point in "reconnaissance". As the latest strategic reconnaissance drone of the US military, the Global Hawk''s equipment can directly display the location and characteristics of the received signal on the equipment operator''s screen. For example, the signal from the eastern lower hemisphere 100 kilometers away is also in the S-band. The pulse width is as high as hundreds of Mhz, and the power is enough to burn through ordinary jammers. It is obviously a search radar at work. But the new signal just detected comes from almost directly above the aircraft. The pulse width is only single digits Mhz and the power is quite weak, which is consistent with all the characteristics of a radio communication system. Considering that the drone was flying at an altitude of 17,000 meters at this time, it seems unlikely that there happened to be an aircraft at a higher position. Therefore, there is nothing wrong with the operator''s judgment that this is a signal from a communications satellite. Ted Lynch also quickly adjusted the heading from 110 to 40, which was basically flying northeast along the border. As a veteran reconnaissance aircraft pilot, even if he is no longer in the cockpit, he still maintains due caution. Especially in Central Asia, a place with complicated situations. After flying for five minutes as promised, Lynch turned to look at his partner next to him: "How''s it going? Is it over?" Although there is almost no concept of control radius for drones with satellite antennas, after all, they are flying in someone else''s Kyrgyz airspace, and he still hopes not to deviate too much from the route notified in advance. Moreover, superiors also set a time limit for task execution in advance. The mission area must be evacuated before 1 a.m. local time (5 a.m. Beijing time). However, the other party hesitated for a moment: "It''s better to turn around and fly again." "Ah?" Lin Qi''s hand almost shook. "This signal...is a bit strange." The operator frowned, picked up the cup and took a sip of coffee: "Although the characteristics satisfy satellite communications... the analysis results are too simple, and it doesn''t look like it is transmitting any useful information." Another advantage of Global Hawk is that it has achieved real-time intelligence analysis to a considerable extent by relying on high-throughput data links and supercomputers on the ground. Even if the specific communication content cannot be deciphered, the communication capacity can be used to determine whether the analysis target is a false signal. This function was actually prepared for electronic reconnaissance during wartime, but it just happened to be used in the current environment. Considering that there is almost no possibility of falsification of satellite signals, and that turning a 180 turn on such a large straight-wing aircraft is actually a very time-consuming task, Lynch was somewhat reluctant: "But it only requires us to capture strange satellite signals in this area, and it doesn''t provide any information about the signal characteristics?" For a moment, the operation cabin fell into silence. In fact, this mission seemed very weird from the beginning. Most of the time, as pilots of strategic reconnaissance aircraft such as the Global Hawk, they have the authority to understand more specific situations and even make appropriate adjustments during the mission. But today, they almost only got a simple request of "where to go and what to find." Therefore, when faced with unexpected situations, it is easy for crew members to have disagreements - Due to the particularity of unmanned reconnaissance aircraft, the captain in charge of the flight does not have the authority to say anything. In many cases, the needs of the reconnaissance mission will prevail. In the end, Lynch chose to compromise. "All right" As he spoke, he began to carefully adjust his flight attitude, preparing to repeat the flight path just now... However, just as he completed the turn and was about to return to the previous route, the operator next to him suddenly sat upright. I almost spilled the coffee in my hand. Lin Qi looked at the other party with somewhat doubtful eyes. But the latter stared straight at the screen in front of him: "The signal...disappeared suddenly?" Almost at the same time. Somewhere in western Xinjiang Province. In a 54K6E2 air defense command vehicle, Zhu Xuejun, wearing a cotton coat, was sitting in front of the operating console, staring intently at a target track on the screen in front of him. About 50 meters away, a 64N6E radar is working in a low-key manner. This is a large-scale battlefield management radar that is only assigned to the brigade/regiment level headquarters. It can greatly reduce the work pressure of the 64N6E search radar. As for the launch positions, they are deployed further away. The reason for this arrangement is mainly to prevent all combat capabilities from being wiped out at once by anti-radiation means. Zhu Xuejun, who was only a brigade commander four years ago, now has a star on his shoulders due to his many participation in major tactical verification and training missions. And his old unit, the original 4th Combined Air Defense Brigade of the Jincheng Military Region, has now been upgraded to the 4th Surface-to-Air Missile Brigade. However, because he was still in the adaptation period after receiving new equipment, Zhu Xuejun, who had already joined the Jincheng Military Region Air Force, returned to his old army and was responsible for the research and training of new tactics. This was originally just a normal workflow, but now it has brought an unexpected benefit - Zhu Xuejun has the authority to make many decisions that cannot be made by the brigade-level commander. It is equivalent to reducing an intermediate command link. "Chief of Staff, orders from superiors." The correspondent held a contact draft in his hand and hurriedly came to the door of the command vehicle: "Maintain surveillance and tracking of the target. If the target is still lingering nearby at 5 o''clock Beijing time, issue a warning to it." "good." Zhu Xuejun nodded calmly. Under the current situation, it should be inconvenient for the aviation force to dispatch. Then we can only rely on their ground-guided troops as the last shield. But Fan Rongjian, the new brigade commander sitting next to him, was not so calm: "Chief of Staff, we are using missiles...how to issue a warning..." Aviation troops can fly with them, interfere with them, use infrared decoys, and even use cannons for warning shots. But if the anti-aircraft missile is fired, it will really be impossible to get it back. Besides, if someone else is flying overseas for the whole journey, let alone calling them out, even if they are just locked, it is totally unreasonable. Zhu Xuejun hesitated for a moment and did not give an answer immediately, but then asked: "Electronic reconnaissance battalion, still haven''t detected the signal from the target?" "No, the target remained silent throughout." Fan Rongjian shook his head and then gestured towards the radar screen: "Currently we can only speculate based on the trajectory detected by the radar that the other party may be the latest RQ4A Global Hawk drone in service." "call-" Upon hearing this speculation, Zhu Xuejun took a long breath and his expression became serious. There was no active signal, and the time was late at night, indicating that there was a high probability of conducting passive electronic reconnaissance. In this case, if you react aggressively, you will fulfill the other party''s wish. But he couldn''t do nothing. In the end, I had to choose a compromise: "Let the 30N6E radar be ready, and then you can conduct a power-on test, but it must be short and not allow the other party to capture too many signal characteristics..." One disadvantage of imported equipment is that the frequency of minor upgrades cannot keep up. Therefore, you need to pay more attention to confidentiality. "yes!" Fan Rongjian saluted, then turned around and began to communicate with the first anti-aircraft missile battalion deployed on the westernmost side. At this time, the target displayed on the radar had also completed a slow 180 turn, and seemed to be preparing to repeat the original route. "TMD..." Looking at the American who seemed to be a little unfinished, Zhu Xuejun couldn''t help but cursed in a low voice. Although the frequency of equipment updates of the Chinese military, especially the air force, has not been slow in recent years, there is still some gap compared with powerful enemies. For example, the Global Hawk flying in the sky has no model to benchmark against. What''s even more troublesome is that others have too great a geographical advantage. You may not feel it when you look at it on the map. But if you put it on a globe, you will find that China is almost surrounded by US military bases. In a situation like today, the other party is clearly here to conduct reconnaissance and provocation, but there is no problem at all in terms of international law. No matter how you deal with it, you will only suffer a dull loss. Thinking of this, Zhu Xuejun''s thoughts couldn''t help but fly back to a few years ago - Although he still doesnt know the full story of the incident, the technology he tested suddenly appeared abroad and achieved world-shocking results. At the same time, the opponents precision-guided weapons exploded bizarrely... Its hard not to relate these things. As a soldier, he understood the requirements of confidentiality regulations and never told anyone about his speculations. But faced with this situation, Zhu Xuejun inevitably started to think. Interception by surface-to-air missiles or fighter jets has almost no room for maneuver in peacetime. Moreover, anti-aircraft defense is the best defense against air defense. No matter how advanced the air defense system is, if it only responds passively, vulnerabilities will appear sooner or later. And if you can think of a way to interfere with or even mislead the other party''s route... Seems to be a more feasible way to fight... (End of chapter) Chapter 1100 Ideas for countering drones Chapter 1100 Ideas for countering drones In just a few minutes when Zhu Xuejun was lost in thought, the target track on the display had changed significantly. "Report!" The operator noticed that neither leader was looking in the direction of the console, so he loudly reported: "The target suddenly turned west and is moving away from the border airspace!" Fan Rongjian and Zhu Xuejun both looked happy when they heard this and quickly sat back in front of the command podium. Then it was discovered that, as expected, the high-altitude target that was difficult to handle actually actively turned and lowered its flying altitude, apparently preparing to quickly leave the detection range. "Are you...scared away by us?" The former wiped the sweat from his forehead and showed a somewhat surprised expression. "A battlefield surveillance radar alone cannot exert such a great deterrent effect..." Zhu Xuejun didnt really want to understand the situation at this moment, but he still waved his hand and replied: "The sudden departure of the other party indicates that either the reconnaissance target has been achieved, or the reconnaissance target has been out of range..." Fan Rongjian was obviously much more relaxed: "That means...we are not reconnaissance targets?" So far, they have only turned on one 64N6E radar, and the signal value of the long-range warning radar is not high, at least it is not worth going to war and taking off a strategic reconnaissance aircraft for detection. "I guess so" In fact, by this time, Zhu Xuejun already had some speculations in his mind, that is, the Americans'' somewhat nonsensical flight might be related to the manned space mission. And the reason for this rush to evacuate is also to avoid the return path of the spacecraft After all, everyone has conflicts, but everyone is still okay in terms of face. Even Americans are unwilling to take risks on security issues. But since his superiors didn''t explain it clearly, he had no choice but to keep his conjecture in his mind and ordered to Fan Rongjian: "No matter what, please report the situation quickly..." And the other side. Dongfeng Aerospace City also received a situation report from the Jincheng Military Region about twenty minutes later After all, everyone is not in the same system, and the People''s Liberation Army''s own chain of command is not smooth, so it does not have such a fast reaction speed. "Report to the commander-in-chief that the target, which is suspected to be a large reconnaissance drone, has left the dangerous airspace to the west." Although Chang Haonan had said before that the other party should not be able to detect any important information, at this time, everyone still breathed a sigh of relief. "It seems that the Americans have failed this time..." The commander-in-chief slowly sat back on the command seat, with a hint of relief in his tone. "That''s not entirely true..." Shen Junrong denied it on the surface, but the raised corners of his mouth showed that he was just joking: "The spacecraft had to change orbit in the last lap to prepare for return. They should still be able to capture the control and feedback signals between Shule Station and the spacecraft..." After he finished speaking, several people next to him laughed. After all, measurement and control signals are almost completely open to the public. It''s equivalent to Americans spending a lot of effort, only to get information that can be obtained by making a phone call. No matter how you look at it, its not a loss. In fact, according to the original plan, the Shule Measurement and Control Station does need to shoulder a large part of the communication tasks in addition to the measurement and control signals. However, thanks to the work of the Qingluan satellite cluster, this part of the function can be temporarily transferred to Haojing. And that place is naturally outside the detection range. However, the relaxing time is always short-lived. For most people here, its still far from the time when they can truly feel relieved It is already 4:15 Beijing time, and there is only more than an hour left before the landing time of Shenzhou 5. Therefore, after confirming that the emergency situation would not pose a threat to the spacecraft''s re-entry into the atmosphere, everyone returned to work one after another. After a while, Shen Junrong suddenly came to Chang Haonan again: "Comrade Haonan, do you think that in the face of this situation, can we interfere with the satellite positioning system to mislead the target route, so as to achieve countermeasures against this type of reconnaissance method?" "Ah?" Chang Haonan was immediately excited after hearing this. This idea can easily be linked to his operations in the Balkans four years ago. However, Shen Junrong had already left the Science and Industry Committee at that time, and logically he should not know the details of that matter. However, the latter just thought that Chang Haonan had not turned around and immediately explained: "The Jincheng Military Region later added a more detailed description of the situation, and mentioned this idea at the end of the report." It wasn''t until this moment that Chang Haonan noticed that Shen Junrong was holding a thicker report than before. Then he breathed a sigh of relief: "In principle it''s possible...but it''s very difficult." "First of all, the GPS positioning system is currently being updated to the third generation. The encryption level of the military code is several levels higher than that of the previous generation... If it is just purely suppressive interference, it may still be possible to achieve it relying on the power advantage of ground equipment, but You said misleading..." He shook his head: "Either we can directly obtain the relevant parameters in some way, or we can make a huge breakthrough at the deciphering level...including both the algorithm and the computing equipment, otherwise it will be difficult to achieve." The fact that he was able to direct that shocking accidental bombing four years ago was really an extremely unlikely event achieved through many coincidences. It is impossible to hope for a repeat. Moreover, even back then, it was thanks to the interference targets being a few aerial bombs. As a low-cost disposable product, JDAM saves money wherever possible. Even if the opponent switches to a Tomahawk cruise missile, it is impossible to achieve such perfect results. And drones are still drones with a unit price of hundreds of millions of dollars... There cannot be only one path planning mode. According to the experience of later generations, a drone like the Global Hawk, even if it is suppressed and interfered by a completely irresistible interference, can still return on its original path through the built-in inertial navigator, or at least fly out of the interfered area. Furthermore, drones are also controlled by humans. If there is a serious deviation in the navigation signal, the pilot can still be the last line of safety. Shen Junrong continued while flipping through the report in his hand: "The concern of the frontline troops is that passive reconnaissance like today is fine. At worst, they can counterattack by entering a silent state. But if the opponent lingers outside the border, they will use synthetic aperture radar or other means to conduct active reconnaissance of our sensitive areas. , then we dont seem to have a suitable response. After all, the other party has not crossed the line, so it is impossible to really open fire, right? For a moment, Chang Haonan didn''t know how to answer. In fact, the most direct way is to build a similar drone yourself and run around the opposite side. If you disgust me, don''t blame me for disgusting you. But lets not talk about the problem of the aircraft itself. To allow drones to fly remotely requires a complete communication satellite system. Otherwise, you can only wander within a few hundred kilometers of the control station. China obviously does not have this system yet. Otherwise, there would be no need for him to bother with the Qingluan constellation. "Although countering drones is a bit difficult, synthetic aperture radar... can actually be dealt with." After some thought, Chang Haonan replied: "In principle, most SAR imaging uses linear frequency modulation signals, so using digital radio frequency storage technology similar to our air-dry series pods, we can achieve frequency-shift modulation interference or micro-motion modulation interference." "Although the success rate of this type of interference is not 100%, it can be targeted at precise ranges and precise targets, and will not affect other own or third-party equipment in the interference area like large-scale noise interference." "Of course, at the technical level, it still takes time to develop..." This method is actually still a passive response. Just like air defense. The effect is definitely there, but if you only defend but not attack, it will only be a matter of time before the power is broken. Therefore, Chang Haonan was still thinking about another possibility in his mind - Instead of forging navigation signals, it directly forges satellite control signals. It is equivalent to directly taking over the other party''s control. In this way, the drone will not trigger the automatic return mode and will not be interfered by the opponent''s ground operator. If it can really be realized, then misleading the route will be trivial. It''s even possible... to capture the target directly! (End of chapter) Chapter 1101 Overcome the black barrier? Chapter 1101 Overcome the black barrier? While Chang Haonan was brainstorming, the Shenzhou-5 spacecraft at an orbital altitude of 340 kilometers had also entered the final stage before returning. Typically, a reentry spacecraft will begin lowering its orbit and adjusting its attitude about one-third of a cycle in advance. In order to ensure that the most critical control instructions are foolproof, this process will not be completed through relay communications, but will be directly handled by overseas measurement and control stations or offshore measurement and control ships - In fact, the two measurement and control points located near Africa were set up for this orbit adjustment. Of course, in order to preserve the stable transmission of images in the cabin, the Qingluan constellation is still on standby. It needs to wait until the spacecraft lands safely before it can readjust its attitude and return to the original working mode of serving the sun-synchronous orbit. At this time, other irrelevant information was no longer displayed on the screen in front of the command and control hall. Only a track map is left, as well as the spacecraft status obtained during the last measurement and control connection. Compared to twenty hours ago, this place is much emptier now. Some leaders and guests watching the launch mission have already left. The comrades in charge of the recovery mission had already set off to the vicinity of the landing site. However, the tension in the atmosphere was no less intense than that of the launch. Spacecraft return technology is inherently a huge technical difficulty. Some early manned space missions even abandoned the spacecraft directly and ejected the astronauts alone and landed with parachutes. In addition, the Columbia spacecraft at the beginning of the year and the Soyuz TM10 spacecraft in the middle of the year also had problems during their return. Therefore, before entering the orbit change procedure, the staff need to make sure again and again that there are no mistakes. At 5:33 a.m., the command and control center finally received a new message: "Yangtze River 3 reports, target found!" Yangtze-3 is the Yuanwang-3 survey ship on standby in the southern Indian Ocean. Just a few seconds after the words were spoken, half of the area was divided on the large screen to display images of the Shenzhou 5 cabin. The astronaut was holding the movable instrument panel with both hands and checking the operating information of the spacecraft attentively. Like the orbit change, the return of the spacecraft does not actually require the astronauts to personally control it. The previous four unmanned spacecraft also completed the entire process directly controlled by the ground. However, some investigation results show that the landing point of the Soyuz spacecraft shifted in May because the control instructions issued by the ground were inconsistent with the information received by the spacecraft. Therefore, on Shenzhou 5, an additional step was added. "Shenzhou 5 reports that the spacecraft is operating normally!" Soon, the astronaut''s angry voice sounded. Compared with before the launch, more than 20 hours of space travel did not seem to have much impact on him. It shows that the entire life support system of the spacecraft should be very consistent with the requirements. Two minutes after capturing the target, Yuanwang-3 issued the first data command to return to the program. The spacecraft then began to adjust its attitude. At 5:36, the return module separated from the orbital module, and lightly completed a 180 turn, aligning the heat-insulating outsole of the tail forward in the direction of flight, and then the brake rocket engine ignited to complete the deorbiting procedure... Due to the limitation of the measurement and control range, this series of actions must be completed in just a few minutes, otherwise the spacecraft will leave the measurement and control range of Yuanwang-3. So even though everything seemed to be in order, the spacecraft''s orbit had to be lowered very quickly. In almost a few breaths, the distance has been reduced from the original 340km to about 250km. Correspondingly, the picture on the big screen also shook violently, almost similar to the situation during yesterday''s rocket launch. Soon, Shenzhou 5 left the measurement and control range and entered the last measurement and control blind spot before returning. Fortunately, the images inside the cabin have not been cut off, allowing everyone on the ground to directly observe the basic conditions of the astronauts. It was not until 5:59 that the propulsion module separated and the return module began to enter the inertial flight stage, and the whole scene finally returned to calm. Shen Junrong, who hadn''t even taken a breath just now, leaned back on the back of his seat, took off his blue work hat, and smoothed his half-grey and half-white hair: "It seems... the maneuvers during the return process were a bit too violent..." "The time is so stuck...there''s nothing we can do about it." Not to mention Shen Junrong, who was watching this for the first time, even Chang Haonan, who had watched the documentary in his previous life, was really sweating just now, but he was just pretending to be calm now: "When relay communication technology matures in the future, we should be able to enter the attitude adjustment process earlier..." There are some problems in manned spaceflight that cannot be simulated no matter how many times unmanned spacecraft are tested. Therefore, no matter which country they are in, astronauts who undertake their first mission have extremely special treatment. The time to relax didn''t last long. In the next five minutes, the trajectory of Shenzhou 5 continued across the northern Indian Ocean and over South Asia, and finally entered China, where it was captured by the radars of several measurement and control stations. And its altitude was basically close to the atmosphere... At 6:04, the trajectory information displayed on the screen and extending forward suddenly disappeared. It means that the spacecraft has entered the black zone At an altitude of 35 to 80 kilometers above the ground, due to severe friction between the reentry body and the air, high temperatures will cause the air around the spacecraft to ionize to form plasma, shielding all electromagnetic waves. Although some optical systems can still make observations, the failure of radar and communication signals is still equivalent to cutting off the connection between the ground and the target, especially the inability to obtain sensor data on the spacecraft. Therefore, this is also the riskiest part of the entire return process. In fact, the entire black barrier stage only lasts about 3-4 minutes. But for everyone present, it can be said that every second seems like a year. It was not until 6:08 that the command hall finally reacquired target data. At this time, the return capsule had arrived over the Bayan Obo area in Mongolia Province. After passing the black barrier, the gate of **** is actually over. Although there are risks in the following steps, they are completely different. Sure enough, good news came one after another. The command and control hall had just confirmed the status of the spacecraft when it received a report from the search, rescue and recovery unit ahead: "I am Helicopter No. 743, the return capsule has been discovered!" After the report ended, footage from a helicopter quickly appeared on the big screen. On the prairie with the first light of dawn, the semi-oval return capsule of Shenzhou 5 has thrown away its insulated bottom and is slowly descending in mid-air, dragging a huge parachute. Because the altitude at this time is already too low, most measurement and control methods have failed. The staff in the command and control hall were relatively idle. Therefore, when this scene appeared, many people started to applaud. Even the commander-in-chief sitting on the podium did not interfere. Now that we''ve reached this point, a little celebration is nothing like opening the champagne in advance. However, Shen Junrong is not among them. "Although this is already the fifth time, every time I see the spaceship pass through the black barrier, my heart still can''t stop beating..." While gently beating his heart, he said to Chang Haonan. When people relax after a long period of tension, they often show a stronger desire to express themselves. Old experts are no exception to this. "I suddenly had an idea." Shen Junrong just picked a random topic to relieve stress, but Chang Haonan''s answer was serious: "If the flight angle and aerodynamic shape of the reentry body are controlled at the same time, so that the reentry process changes from omnidirectional ablation to directional ablation, then the plasma existence area can be limited to part of the surface. Can it be used in black Has normal communication been achieved in the barrier area? "ah?" The former was just a casual comment, but now his attention was completely on the slowly falling spaceship. As a result, I suddenly heard Chang Haonan say "normal communication in the black barrier area." The whole person was immediately shocked. But I didn''t hear the first half of it clearly, so I froze in place. Chang Haonan also saw the other party''s embarrassment and immediately repeated what he just said. This time, Shen Junrong must have heard clearly. But for a moment I didn''t know how to answer. Communication within a black barrier is actually a topic that has been studied for a long time. It''s just that I haven''t been able to find a solution with high operability in engineering. Seeing this, Chang Haonan further explained: "The so-called black barrier is essentially due to the chemical equilibrium in the stagnation area, the non-equilibrium ionization process caused by the diffusion of fluid to the conical front end of the aircraft, chemical freezing, chemical reaction surface enhancement, aircraft surface ablation, additional particles and free The introduction of electrons, together with the deposition of net surface charge, the interaction of free electrons and ions in the gas, results in the formation of a plasma sheath around the vehicle." As he spoke, he wrote down a series of formulas in his notebook: "When electromagnetic waves propagate in plasma, the imaginary part of the wave number determines the absorption of waves by the plasma. Then we can reduce the electron density somewhere in this sheath to improve the transmittance of electromagnetic waves at this location, such as Changing the blunt structure to a pointed cone structure can very effectively reduce the thickness of the sheath itself, which is equivalent to reducing the electron density..." The expression on Shen Junrong''s face changed from shock to curiosity, and then to contemplation. It wasn''t until more than ten minutes later that the spacecraft landed smoothly and there was a roaring and tsunami-like applause from all around that he woke up from his thoughts again... (End of chapter) Chapter 1102 space-based digital image transmission system Chapter 1102 Space-based digital image transmission system October 16, 2003, 6:23 pm. The Shenzhou-5 return capsule successfully landed in the scheduled return area in central Mongolia Province. It is only 4.8 kilometers from the intended landing center. This number is quite satisfactory within the reservation plan. Its not even the best result in previous recycling. But with the two previous accidents in the United States and Russia, everything on the Shenzhou 5 was not so normal... Helicopter No. 736, which was responsible for the search and rescue mission, was the helicopter that Chang Haonan flew in before. He quickly landed near the return capsule. The medical team and search and rescue team quickly arrived to help the astronauts open the hatch cover and perform the first operations inside the capsule. medical examination. 27 minutes later, China''s first astronaut completed the exit independently and confirmed that all physical indicators were normal... At this time, the atmosphere in the command and control hall was much calmer than before. For many people who have been fighting for this for several years, or even more than ten years, the emotions burst out at this moment cannot be expressed by cheers and celebrations. According to the plan, the commander-in-chief of the manned space program should officially announce at this time that the Shenzhou-5 mission was a complete success. But he stood behind the small podium and opened his mouth several times in a row, but he was unable to complete a sentence that he was already familiar with. Some of the older comrades even had red eyes, but they restrained themselves from showing it because of the cameras surrounding them. Originally, there was a high probability that Shen Junrong should be included. But he was diverted by Chang Haonan in advance. After confirming that the Shenzhou 5 return capsule and astronauts were fine, he switched back to the previous topic at the speed of light. "Comrade Haonan?" Obviously, as an expert in the field of measurement and control communications, Shen Junrong can no longer get rid of this idea in his mind. Chang Haonan was also clapping along at this moment. He was called twice by Shen Junrong before he heard someone calling his name, so he quickly turned around. "You just mentioned changing the shape of the reentry body to a pointed cone shape...but the effective space inside this shape is too low, and more importantly...the high temperature and ablation caused by aerodynamic heating will be more serious. In addition, There are also problems with the structural strength of the thin-shell cone... About ten years ago, one of our rockets was successfully launched but the payload was damaged because this structure was used inside the fairing..." Contrary to many people''s intuition, in fluid dynamics, the shape with the lowest resistance is a rounded blunt nose, which is the bulbous bow of an ocean-going ship, or the shape of the return capsule of a manned spacecraft. A pointed cone will actually increase resistance. "this" In fact, what Chang Haonan just proposed was just an idea at best. Not even an idea. Taking the pointed cone as an example, it is just because this shape is easier to calculate, and the result will definitely reduce the thickness of the plasma sheath. Therefore, I really haven''t seriously considered the questions raised by Shen Junrong. After some thought, he spoke again: "High-temperature ablation can be overcome to some extent by increasing the thickness of the heat-resistant coating or using technologies such as active cooling." "As for space utilization..." After answering this, Chang Haonan was still stuck. In fact, the reason why he thought about the communication problem in the black barrier area had nothing to do with the spacecraft - After so many years of manned spaceflight, the problem of being disconnected for a few minutes in a black barrier area is actually not a big problem. On the contrary, it is very fatal for ballistic missiles. As for ballistic missile warheads, they don''t actually care much about space utilization. The altitude range of 35-80km is exactly the most critical stage of terminal attitude adjustment. Above 80km, the adjustment accuracy is insufficient. And the friction during reentry itself will lead to a certain degree of orbital deviation. And below 35km... Ballistic missiles do not slow down and land. The tail speed can reach up to 15-20 times the speed of sound, which is 5-7km per second. After breaking through the black barrier, it took a few seconds to hit the target. There was no time to adjust. However, due to the existence of the black barrier, the warhead can neither passively receive satellite signals nor actively use radar guidance. Therefore, the hit accuracy almost only relies on the gyroscope for orbit calculation. Except for short- and medium-range missiles that do not leave the atmosphere during the entire journey, if the circular probability error is 50 meters, it is already a hero among heroes. And if the warhead can be guided using synthetic aperture radar...then the hit accuracy of 50 meters is basically the lower limit. What''s more, it can also be used to attack targets in action. Such as large ships, or important convoys. But it was obviously not convenient to share these ideas with Shen Junrong. Fortunately, this is not the only way he thinks about reducing or eliminating the impact of the black barrier. So quickly change the topic: "The pointed cone is just an example. In reality, more complex shapes can be used..." "In addition, injecting substances into the plasma flow field...such as sulfur hexafluoride, rhenium hexafluoride, or carbon tetrachloride can also effectively reduce the electron density in the plasma sheath. Of course, these need to be re-entered in the reentry body. The head and side openings, as well as the design of the channel structure, are also a big test for the overall structure..." After Chang Haonan finished speaking, it took a while before Shen Junrong spoke again. He turned around curiously, only to find that the other party was holding a notebook in his hand and writing rapidly. Of course, at this time when so much attention is being paid to them, the "non-business" communication between the two did not last long. The media who had been waiting for two days to finally get an interview opportunity swarmed in, and soon someone noticed Chang Haonan and Shen Junrong not far away. In the blink of an eye, several microphones with different media logos were handed around... A few hours later. NASA Headquarters. Marville strode into the commissioner''s office and stood in front of Sean O''Keefe. There is also a piece of information in his hand: "Director, the reconnaissance results from Central Command have been sent back. This is the analysis result." As he spoke, he opened the document and put it on his desk: "but" Before he could finish speaking, O''Keefe took over: "But no abnormalities were found. There was only one S-band signal source, but the communication capacity was extremely low?" He didn''t even glance down at the report. "Uh...that''s true, but how do you..." After the Global Hawk returned, the information was uploaded to China almost as quickly as possible, and was then technically processed by NASA analysts. There is no additional process in between. "well" O''Keefe shook his head helplessly, took out a few pieces of paper from the side of the computer, and handed them to Marvell opposite: "Take a look." The latter received it and found it was a translated news briefing. Of course, the originals are also attached. Chinese. The content of the top line is - "my country''s first manned space mission was successfully completed, and the space-based digital image transmission system made contributions" Although the translation was rather blunt, the title still made Marvell''s heart skip a beat. The text is not long, but the content is very important. Yun Yun said that we have introduced a set of new technologies that allow the spacecraft to directly transmit data to the Beijing Aerospace Command Center about one-third of the time during orbit, which greatly improves the effectiveness of the spacecraft while in orbit. They send signals directly to the capital, while you perform passive reconnaissance missions in Central Asia. Being able to get useful information is called having a ghost. "They... just reported it directly?" Marville is also a veteran of NASA and has some understanding of China''s style. Generally speaking, after a new technology is put into use, it will not be said so straightforwardly. At least not this soon. O''Keefe put his arms on the table and stared directly at the unopened report in front of him. He was silent for a while before continuing: "This news is not for their own people, but for us...or, in other words, for other countries that are interested in cooperation..." (End of chapter) Chapter 1103 The issue of academician quotas Chapter 1103: The issue of academician quotas The successful completion of the Shenzhou-5 mission almost immediately became the hottest topic at the end of 2003. In particular, the large video clip of astronauts working in the return capsule was reprinted by major media within one day of broadcast. As O''Keefe guessed, even many foreign media are also very interested in this content - Mainly fresh. After all, although humans have been conducting manned spaceflight activities for more than half a century, in fact, until the 21st century, what the outside world could directly see was relatively limited. Basically just certain clips that have been edited. It was only after the International Space Station was initially put into use in 2001 that there were some stable sources of images. Therefore, for the public, space missions still have a lot of mystery. As for the 20-minute cabin footage of Shenzhou 5, although the astronauts did not move much throughout the entire process, and the space inside the spacecraft''s return capsule was also quite cramped, fortunately, the level of interaction was full, and the 480P video quality was considered in the 21st century. At first this would be called high definition. Still continuous and real-time. In fact, as early as the 1980s, the Americans considered using the high-coverage relay communication network that had just been built at that time to conduct long-term continuous live broadcasts of space activities in order to further overwhelm the Soviet and Eastern camps at the propaganda level. For this purpose, a teacher, Christa McAuliffe, was specially selected as an astronaut and planned to provide space lessons to primary and secondary school students across the country. But the one she flew on happened to be the unlucky Challenger space shuttle... Afterwards, NASA announced that it would no longer allow ordinary people to participate in space shuttle missions, and the "Teachers in Space" project had to be shelved. Later, with the end of the Cold War, the United States no longer had this need. As a result, China took the lead. In response, at a press conference held on the evening of October 16th, Eastern Time, after NASA expressed its apparently sincere congratulations to its Chinese counterparts, it also stated that it would consider carrying relevant equipment on the next expedition mission to demonstrate the Destiny experiment to the ground. Some daily situations inside the module or Unity node module. There are even plans to open a separate channel on NASA''s official website to specifically display this type of image content. It should be said that in terms of technology in the aerospace field, the United States is undoubtedly dominant. What started out as an almost long-term project. But it is not difficult for a discerning person to see that this is completely a passive behavior after being stimulated by China. On the contrary, it seems to have no structure. Of course, considering the current absolute dominance of the United States in the field of space exploration, it is impossible for everyone to immediately defect to China for such a thing. But to say that I have no idea at all... That is definitely false too. As for China, the focus of propaganda is still on the astronauts and the spacecraft itself. In fact, some reporters paid attention to the technology behind that scene, but at Chang Haonan''s request, they ended up making ambiguous and even misleading reports in the name of "space-based digital image transmission system." The main reason is to avoid mentioning specific communication methods throughout the process, and try to make the outside world think that a traditional geosynchronous orbit relay satellite is playing a role. The original intention of the Qingluan constellation was to serve military remote sensing satellites. Although it does not directly undertake military tasks, there is always no harm in keeping a low profile. For this reason, Chang Haonan, who appeared in Dongfeng Aerospace City, declined all interviews in the next few days and planned to return to the capital after handing over all the information The Qingluan constellation is essentially preparation for a group of practice series satellites with stronger performance and more complete functions. Now that the feasibility of the technical route of mid- and low-orbit relay communication has been proven, it is natural to strike while the iron is hot to start the next step. Although Zhang Weiyong can be responsible for the specific work of obtaining project approval, the technical route of the key payload is always proposed by Chang Haonan and organizes the entire test. Therefore, he cannot be a hands-off shopkeeper in any case. On the other hand, it is also related to the progress of academician selection. To be honest, with Chang Haonan''s current qualifications, honors, and even connections, it is a natural thing to be elected as an academician of any academy, and no one can find any reason. However, Zhu Linyu and Lin Zuoming still said that the interests involved behind this title are too great. Even if there is no problem in being selected, there is no guarantee that someone will not jump out to cause trouble out of jealousy. Therefore, the two of them proposed that he leave the capital to "avoid suspicion." But now, we are about to enter late October. Logically speaking, the results of the first round of selection of academicians in 2003 should have been finalized, but they have not had time to be finally announced. As long as the list comes out, Chang Haonan will have no worries at all and can show up in the capital openly. In fact, even he himself was a little curious as to whether the final candidate would be the Academy of Sciences or the Academy of Engineering... In fact, the list of candidates for the second round of academician co-optation should be announced in early October as usual. The reason why this year has been delayed for nearly half a month and there is still no movement... It is precisely because of Chang Haonan himself. October 20th, Beijing. In an office of the Chinese Academy of Engineering, Vice President Du Wanxiang, who is in charge of this year''s review work, is sitting at the table, facing the two lists in front of him, with a frown on his face. At this moment, a figure suddenly appeared outside the door. After knocking on the door twice and finding no response, he simply walked in. Du Wanxiang didn''t react suddenly until the man came in front of him. Then quickly get ready to get up: "Dean Xu?" The visitor was none other than Academician Xu Dikuang, the dean of the Academy of Engineering. Academician Xu waved his hand to indicate that it was okay, and then sat down opposite Du Wanxiang: "Old Du, it''s almost the end of October... Why haven''t the results of this year''s first round of selection reviews been reported to the hospital yet?" When the other party asked about this, Du Wanxiang shook his head helplessly: "Still coordinating with the Academy of Sciences on the quota issue..." This answer immediately confused the dean opposite: "In principle, the academicians of the Academy of Engineering and the Academy of Sciences are parallel to each other and do not interfere with each other... Are there any quotas that need to be coordinated with them?" Du Wanxiang rubbed his swollen head: "Isn''t it true that a talented player emerged this year..." He said, turning the two lists over and pushing them in front of Xu Dikuang. The latter saw the highlighted name almost at first glance. Moreover, I saw it on both lists at the same time... "Professor Chang?" Xu Dikuang took a deep breath and sat up slightly, his face full of tangles: "Yeah...how could I forget about him..." Upon seeing this, Academician Du moved forward slightly and introduced in a low voice: "What the Department of Mathematics and Physics of the Academy of Sciences means is that Professor Chang won the first Fields Medal in Chinese history last year. It is impossible not to give him an academician title..." "But on our side, Professor Chang has also been jointly nominated by the Liao Provincial Association for Science and Technology, the Beijing Association for Science and Technology, the Aviation Power Group, and six senior academicians. In addition, he also holds three national awards in his hand, and is very interested in Our countrys aviation technology industry has made immeasurable and huge contributions, and there is absolutely no reason not to pass..." After saying this, Xu Dikuang''s expression became even more twisted. You know, the Chinese Academy of Engineering has only been established less than 10 years ago, and it is now in the stage of urgent need to obtain recognition. Even without considering the background of these nominators and the nominating units, based solely on Chang Haonan''s own abilities and contributions, as the dean, he also hopes to award the title of academician of the Academy of Engineering to the other party. It can only be said that some people need an academician title to prove themselves. But there are still some people who must be given the title of academician to prove the authority of this selection system. But having said that, Xu Dikuang knew very well. If you have to choose between the two houses, then most people will probably choose the Academy of Sciences, which has a deeper historical background... "Unexpectedly..." After thinking to no avail, he had no choice but to smile bitterly and shake his head: "I don''t know how to issue this academician title one day..." (End of chapter) Chapter 1104 Can academicians still obey the adjustment? Chapter 1104 Can academicians still obey the adjustment? Of course, Xu Dikuang just laughed at himself casually. The Academy of Engineering has only 70 additional places for selection in 2003, and 170 candidates have initially passed the first round of review. It is definitely impossible to send it out. However, sending it to a specific person may indeed require some operations. "Dean Xu, you said..." After a period of somewhat depressing silence, it was Du Wanxiang who spoke first. But there was obvious hesitation in his tone: "Is it possible to coordinate with the Academy of Sciences so that Professor Chang doesn''t have to choose one?" "Um?!" This idea is indeed a bit whimsical. Xu Dikuang, who was leaning on the back of the chair, sat up straight in an instant, staring straight at Du Wanxiang: "How could..." However, before he could finish his subconscious answer, his voice stopped abruptly. Then, he changed his words to: "Let me think..." Xu Dikuang resumed his previous posture, staring at the ceiling in concentration, one hand still tapping rhythmically on the armrest of the chair. Although he didn''t give an immediate answer, his attitude had obviously relaxed. Du Wanxiang, who also saw this, immediately struck while the iron was hot: "Actually, I checked specifically and found out that the regulations from my superiors are that those who already have the title of academician of one of the two academies will in principle no longer participate in the selection of the other institution. However, Professor Chang ran for election at the same time in the same year and was not subject to this provision. Within limits This was actually Zhu Linyus initial thought Taking advantage of a loophole in the regulations, Chang Haonan was sent to the Academy of Engineering in the name of the group. The two of them seemed to coincide with each other. However, Xu Dikuang raised his hand and interrupted the other party: "Lao Du, the original intention of the superiors'' regulations is to allow us to show sufficient distinction between the two sides... Of course I know the situation you mentioned, but it is obviously a loophole in the regulations..." As the dean, his ideas are much more thorough than those of Du Wanxiang and Zhu Linyu Superiors are not stupid. Playing the word game stuck bug, even if it succeeds this time, it will not be a good thing in the long run. But the suggestion just now did inspire Xu Dikuang. Therefore, after a brief pause, he changed the topic again: "That''s not to say that loopholes cannot be exploited, but they can only be used as icing on the cake. We at least need some more convincing reasons as a basis to give a reasonable explanation to the superior unit." "That''s easy to say." Du Wanxiang replied almost without thinking: "Professor Chang and I... have some indirect working contacts. I have a good idea of ??his abilities and contributions in the engineering field. I can mobilize comrades in the institute to write a joint letter of recommendation and explain the situation to my superiors... " In fact, the two people have never met. However, as an expert in the field of laser engineering, Du Wanxiang knows a lot about the ultra-short laser processing technology that Chang Haonan has studied in the past two years, and has even provided some resource support through the Institute of Engineering Physics and the 863 Project. Naturally understand the latter''s working ability. However, he still misunderstood what Xu Dikuang meant. "It''s not about the joint letter..." The latter quickly waved his hand: "There are many researchers who have made achievements in the fields of theory and engineering... Of course, Professor Chang''s ability is definitely among the best among these people, but if you only look at it from his personal point of view, there is actually no difference between one hat and two hats. It is enough to reflect his contribution to our country''s scientific and technological community, so the focus is actually on us," "us?" Du Wanxiang didn''t understand for a while. "Yes, we need him to hold both titles, not, or at least not just himself." In order to express his emphasis, Xu Dikuang specially knocked on the table when he said this: "Only by explaining this matter clearly to your superiors can you make this exception for Professor Chang." Hearing this, Du Wanxiang blurted out: "Isn''t that the same situation as when the Academy of Engineering was first established?" As an academician who was elected to the Academy of Engineering shortly after its establishment, he naturally has a good understanding of the situation in the early years - The original intention of establishing a separate Chinese Academy of Engineering was, at least in part, to join the Council of International Academies of Engineering and Technology Sciences (CAETS) and promote exchanges between domestic and foreign engineering circles. In fact, as early as the 1970s, the Department of Technology and Science of the Chinese Academy of Sciences made many applications. But because it is not an independent unit, it has never been accepted. Finally, in the early 1990s, in accordance with international practice, China independently established the China Academy of Engineering for the engineering and technology community. However, unlike the Academy of Social Sciences, which was established by directly splitting off the Department of Social Sciences of the Academy of Sciences, the Academy of Engineering is not the foundation of the former Department of Technology and Science, but a completely new one. In order for such a brand-new institution to gain international recognition in a short period of time, the superiors asked some academicians of the Academy of Sciences with high international reputation to join the Academy of Engineering at the same time. It is equivalent to giving an "original stock". Thanks to this, the Academy of Engineering finally joined CAETS in 1997. In fact, Du Wanxiang didn''t mean anything when he mentioned this. After all, it is a special situation in a special historical period. More than ten years have passed and it is impossible to happen again. But his words reminded Xu Dikuang, who was sitting opposite. The latter''s eyes lit up instantly: "Lao Du, Professor Chang''s recommendation and nomination, which department was it finally assigned to?" This somewhat sudden question left Du Wanxiang confused for a while. But he still replied: "Of course it is the Department of Mechanical and Vehicle Engineering. Candidates with engineering backgrounds such as shipbuilding, aviation, aerospace, and machinery... these engineering backgrounds will basically be assigned here... Is there anything wrong with that?" This division method is of course no problem according to common sense. But Xu Dikuang slapped his thigh suddenly: "Inappropriate, very inappropriate!" The fierce reaction made Du Wanxiang even more puzzled. Fortunately, the former quickly continued: "Professor Chang''s contribution to the field of engineering is probably not just in the fields of mechanical and vehicle engineering." "As far as I know, he has also made great contributions in the fields of information and electronic engineering, as well as chemical engineering, metallurgy and materials engineering...especially in the computer field. Who dares to say that the software developed by Torch Group Havent used it yourself? Du Wanxiang obviously couldn''t answer this question. I had to ask: "Then Dean, what do you mean..." Xu Dikuang hesitated to speak, but in the end he did not immediately give an explanation: "We still need to ask Professor Chang himself about this matter... You don''t have to worry about it, I''ll handle it myself!" So, before Chang Haonan could leave Dongfeng Aerospace City, he saw Lin Zuoming who suddenly rushed over and said he wanted to interview him. This is not a common form of contact. Especially when he is expected to return to the capital in two days. Therefore, when they first met, Chang Haonan even felt a little worried whether there was a big problem with any project. As soon as the two sat down, Lin Zuoming said with a smile. "Comrade Haonan, I am here this time with a major organizational task..." At this moment, Chang Haonan breathed a sigh of relief. The other party''s tone indicated that there was no particularly serious problem. So next, all that''s left is curiosity: "What important task has to be rushed in these two days...Does Mr. Lin have to go there personally?" Lin Zuoming smiled mysteriously: "Dean Xu of the Academy of Engineering contacted us yesterday and asked if the department you are applying for can be changed to the Department of Engineering Management..." "puff-" Chang Haonan, who had just taken a sip of water, almost couldn''t hold back his smile. It took a lot of effort to swallow it: "Not later..." "Why are you already being evaluated as an academician, and why is there such a thing as professional compliance adjustment?" His statement also amused Lin Zuoming opposite. After a while, he regained his composure and explained: "Dean Xu didn''t explain the specific reason, but I can probably guess it..." "The Department of Engineering Management is a new department established in 2000. It has only gone through two rounds of selection this year. On the one hand, it is small and has many vacancies. On the other hand..." He hesitated for a moment, then lowered his voice slightly: "On the other hand, the Department of Engineering Management actually caused some controversy when it was first established... Mainly because there is an extra clause in its selection rules, which states that candidates must make important contributions in the field of engineering management. This statement led to Many people are worried that it will be easier for some leading comrades who are only responsible in name to be elected..." Chang Haonan understood instantly: "So, are you planning to let me add some persuasiveness to this school?" "That''s right!" Lin Zuoming nodded heavily: "Just like when the Academy of Engineering was first established, more than thirty senior academicians from the Academy of Sciences were invited to take charge... It makes sense." Chang Haonan didn''t know that he had been taken into consideration by both parties at the same time. He just thought that the Engineering Academy acted faster and took the lead. In fact, he didn''t really care about which academic department he was assigned to. However, there is another problem: "But Mr. Lin, in my case... isn''t it considered that I have been elected as a leader?" Although the chief planner ranks lower, he is still a member of the team. Proper group leadership. If he is really selected, wouldn''t it confirm the worries of outsiders? "That''s different." Lin Zuoming decisively denied: "Your achievements, even in terms of the public part, are recognized by everyone. Participating in the evaluation with your current title will be more convincing..." Even if the words come to this, Chang Haonan cannot refuse: "Since the organization needs it, I personally have no objection." "good!" Hearing Chang Haonan''s answer, Lin Zuoming slammed the table excitedly: "Then I will convey your opinion to Dean Xu immediately..." (End of chapter) Chapter 1105 One shot, two shots Chapter 1105: Double shot After Chang Haonan nodded in agreement, everything that happened next moved very quickly. Just three days later, the Academy of Sciences and the Academy of Engineering announced the candidates for the second round of the 2003 academician election. In this era, although both houses have established their own official websites, out of habit, they will first disclose their information to the public through print media, such as science news. Therefore, it was not until Chang Haonan returned to Beijing and returned to the Aviation Power Group that he saw his name in the two documents sent by Zhu Linyu personally - twice. "Mr. Zhu, this..." He pointed at the two forms in front of him with a look of astonishment, and for a moment he didn''t even know how to speak. It would be a lie to say that Chang Haonan has never thought about the double academicianship. However, considering the specific situation of the previous batch of double academicians and his current age, he has always thought that the possibility is not high. The result was a complete surprise. "There''s no other way... You only have one person, and everyone wants to take advantage of it, so isn''t this the only way left..." Zhu Linyu, who was sitting opposite, sounded a little helpless in his tone, but there was a trace of undetectable cunning in his eyes. Chang Haonan noticed this, lowered his head and took a closer look, and found a clue - The work units displayed on the two tables are different. One is Beijing University of Aeronautics and Astronautics. The other one is the Aviation Power Group. Chang Haonan realized it instantly. How can "everyone" want to take advantage of this? Obviously the other party wants to take advantage of it. However, the Aviation Power Group belongs to the original family after all, so he would not expose it in public. After some joking, Zhu Linyu took the lead in calming down his expression and got down to business: "Comrade Haonan, it is best for you to stay in the capital for a while during the next period of time." Although Chang Haonan had this intention, he was still a little surprised when he heard the other party specifically made this request: "How to say?" "Because there were many problems with selection based on written materials in the past, starting from this year, some departments of the two colleges may conduct a pilot program to invite candidates to conduct on-site work reports and defenses." Zhu Linyu explained: "Although the materials reported to you are already very convincing, after all... it is a special situation, so there is no guarantee that we will not find you, so it is best to be prepared." "Don''t worry." Chang Haonan nodded: "The work in Haojing has been basically straightened out. In the next few months, I should prepare several new projects in the capital." Zhu Linyu''s eyes suddenly widened: "Any new projects?" For him, Chang Haonan''s answer just now was a mixed blessing Chang Haonan''s academician title is already guaranteed. It is naturally a good thing to have new ideas at this juncture, which will help to strike while the iron is hot and leverage more resources. But on the other hand, the Aerospace Power Group has only been established for a few years, and its research and development capabilities are still limited. No matter how many resources there are, if there are not enough people to carry out research, it will only be in vain. At present, supporting the research and development of two new models (AE1500, QC300) and the improvement of several other existing models at the same time is basically the end. If we really have another big job, I''m afraid we will have to face the dilemma of having more than enough energy but not enough energy. "Don''t worry...it''s not about making a new model." Seeing Zhu Linyu''s twisted expression, Chang Haonan roughly guessed what the other person was thinking, so he smiled and comforted: "In terms of the production of AE1500, we still need some new technologies that have been less studied in the past, or even completely blank... I am going to use the experience of Torch-C.B. Ferrari to solve it in advance." "The other thing is some longer-term considerations. With the current conditions, we can only do some preliminary research..." Zhu Linyu also relaxed after hearing this and quickly expressed his stance: "In short, if there is any need for support, the group level will definitely do its best to meet your requirements!" Counting Chang Haonan, three people from the Aviation Power Group entered the second round of academician selection this year. The other two are naturally Yan Zhongcheng and Jiang Fuhe who returned home in 2001. But objectively speaking, it is not too stable. And given their age, even if they are successfully awarded, they are unlikely to be on the front line of research and development again. Therefore, the level of emphasis at the group level is naturally different. But Chang Haonan is very normal about this: "It''s not necessary...for adaptive processing, Torch Group itself has a certain research and development foundation, and it can also get support from the Seiko Project." "As for the preliminary research... at least for now, just leave it to the Torch Laboratory." The first two students brought out by Chang Haonan have now graduated. Wang Jie naturally stayed at the school to teach, and although Li Yabo was still in the postdoctoral stage, he only had one year left before leaving the university. The three lecturers that year also became associate professors one after another and obtained doctoral supervisor qualifications. The scale and research capabilities of the entire research group have naturally become much larger, and they can conduct some independent research without Chang Haonan. The second-round candidate information announced by both houses of Congress has predictably triggered some controversy. No one dared to question Chang Haonan''s own qualifications for election. But entering both lists at the same time still surprised many people. After all, the quota for selection is limited each year, and if you take up two of them, it will inevitably affect the chances of other candidates. Until the end of October, a station C evening news took about 3 minutes to conduct a special report on the 2003 academician selection. It was specifically mentioned that in order to ensure the authority of the Department of Engineering Management, some academicians or academician candidates of the Academy of Sciences who have made widely recognized achievements in engineering project practice will be allowed to join the department. Such a statement naturally represents the official attitude. As a result, the apparent controversy quickly subsided. However, the pressure on the Engineering Academy will not completely disappear... However, the rumors from the outside world did not affect Chang Haonan''s work plan. After the National Day holiday, he submitted a project called "Thin-walled Complex Workpiece Processing Modeling and Online Compensation Research" to his superiors. The main funders were the Seiko Planning Fund Committee, the Aerospace Power Group, and the Aerospace Technology Group. The ones actually responsible for the research and development tasks are Torch Laboratory and C.B. Ferrari. As part of the project preparation phase, Chang Haonan also returned to the capital at the end of October and quickly approached Yang Weihua, the head of R&D of Torch-C.B. Ferrari in China, as well as Yang Weihua, who has been responsible for the development and maintenance of digital industrial control systems. Wei Yongming. The two of them are also the highest-level technicians in the field of mechanical processing within the entire Torch Group system... "To be honest, I thought you, Mr. Chang, would be busy preparing for the second round of reviews right now..." Wei Yongming and Chang Haonan have known each other for a long time, so they don''t seem so nervous in front of the latter. "Actually, you''re right to say that." Chang Haonan smiled and said while sorting out the things he just took out of his briefcase: "I''m really preparing for the second round of reviews recently." "ah?" Wei Yongming originally just wanted to make a joke and find an angle to compliment him. But I never expected to get such an answer: "Then today..." Chang Haonan lightly tapped the information on the table: "For me, doing the project well is the best preparation for the second round of review." Facing his boss who was pretending to be invisible, Wei Yongming froze in his seat for a while, and finally had to give him an expression of admiration. And Yang Weihua, who had been silent just now, was also relaxed a lot by the exchange in front of him. As a result, the three people quickly entered the main topic of today''s discussion. "As for the research background and implementation requirements of this new project, I think you two should have already read it." Chang Haonan didn''t even lower his head, flipping through the information in front of him to a page marked "Cutting Error Modeling", and then continued: "In general, as my country''s industrial production capacity continues to develop towards high-end, it is necessary to eliminate...or at least reduce the reliance on manual steps in the processing of complex parts..." Chang Haonan spent about ten minutes briefly introducing the problems faced during the processing of AE1500 fan blades and the basic ideas of adaptive processing. The other two were also experts and knew a lot about the problems in semi-automated processing, so they quickly understood what the former meant. However, they don''t seem very optimistic about the project itself. After pondering for a moment, Yang Weihua spoke first: "In recent years, we have also cooperated with the Italian side to conduct technical research on intelligent processing, but it is still difficult to completely determine the amount of deformation between the semi-finished product and the original design during the processing without manual participation... This One thing, Director Wei should know more carefully." Wei Yongming, who was suddenly cueed, also nodded: "Mr. Chang, you just mentioned in-situ detection... The current mainstream technical route is to use the key feature points of the workpiece''s surface as the positioning reference, and then use a three-dimensional coordinate detector for measurement. It is indeed feasible for products with relatively regular shapes, but if If the geometric outline of the surface of the processing object is not clear enough, then the accuracy of simple digital measurement is not optimistic..." "In addition, I have also tried to improve on the image comparison algorithm you developed before, using multi-dimensional views to judge the similarity between products and designs... However, this requires unimaginable computing power support, at least for now. The level of computer hardware is not yet possible..." Although the feedback he received was all about the obstacles he is currently facing, Chang Haonan is generally quite pleased Torch-C.B. Ferrari is not satisfied with its absolute dominant position in the domestic market, but insists on conducting cutting-edge research in the field of mechanical processing. When Wei Yongming and Yang Weihua faced this new project, although they failed to come up with a solution, they were able to raise very specific technical issues. Everyone who often engages in scientific research must know that being able to refine the problem basically means that half of the success is achieved... "Contact measurement is a universal issue in adaptive processing, and we can leave it to be discussed later." Chang Haonan already had an idea of ??the current research progress, so he immediately said: "But specifically when it comes to adaptive cutting, there is actually a more opportunistic approach..." "It is indeed difficult to obtain the deformation of the workpiece directly, but the error of the workpiece comes from the tool, and the runout and deformation of the tool during the machining process are relatively easy to measure." As Chang Haonan spoke, he took out two other documents from his briefcase and handed them to the two of them respectively: "In this case, we can establish a thin-wall comprehensive dimensional error model, and then perform iterative calculations on the comprehensive dimensional error to directly obtain the required compensation amount, thereby achieving effective compensation of thin-wall dimensional errors..." This imaginative idea made the other two people slightly confused. At first glance, it seems really simple. Integrating the tool error over time will naturally be the error fed back into the machining result. But that''s in one dimension. In actual cutting processing, the tool itself has at least three degrees of freedom. Also consider the fixture, eccentricity, deformation, radial runout... Not to mention starting to analyze, just thinking about it makes people''s scalp numb... (End of chapter) Chapter 1106 Floating clamping method Chapter 1106 Floating Clamping Method When doing research, the most taboo thing is half-understanding. Therefore, although he believed in his heart that Chang Haonan must have a solution, Yang Weihua still expressed his concerns. In short, its just one sentence. Is it a little too complicated? "It''s really complicated." Chang Haonan did not deny the existence of the problem, but just nodded: "So, we have to do it bit by bit... First of all, for workpieces that are not particularly large in size, milling force is the most direct factor causing elastic deformation of thin walls, so as a first step, we can start with micro milling force modeling... " The reason for choosing this research path is not entirely due to the consideration of going from easy to difficult. Part of the reason is that the fan blades of the AE1500 just meet this requirement of "not being particularly large in size". Therefore, after achieving results, you can immediately put them into verification. Wei Yongming also continued at this time: "If we only study the shear effect, there are ready-made mathematical models that can establish the mathematical relationship between the resultant current and the shear force under the second-order damping system... Even in the case of multi-axis simultaneous machining, it can It is only necessary to add a coupling between multi-directional feed axes to eliminate the impact of the motor on the measurement structure when providing speed-changing torque..." "The basic idea is indeed correct, but... it''s not that simple." Chang Haonan turned around, picked up the oil-based pen, and drew a cylinder on the whiteboard behind him After so many years of practice, his painting skills have improved dramatically compared to his early years. At least, everyone can see that this is a cylinder... In micro-milling, the cutting force generated by the tool during the cutting process cannot simply be equated to shearing force. In fact, it should also include plowing force..." Chang Haonan said as he drew a force analysis on the place representing the tool path: "So, the basic expression of the milling force model in any direction should be..." dFj=[Ktshj()+Ktp]dz "Where Kts and Ktp represent the shear force and plow shear force coefficients in the corresponding directions respectively..." Although it is the first step, just considering the milling force itself and the tool eccentricity caused by the milling force and installation error has made the entire system very complicated. In addition, Chang Haonan almost talks with a pen. Yang Weihua, who has an engineering background, can no longer keep up with the rhythm. However, this is not because Chang Haonan used any profound theory at the beginning. It''s just that the derivation process is indeed too complicated. Write it down and go back and read it a few more times, and you can still follow the train of thought. Fortunately, Wei Yongming, who has good theoretical foundation, quickly picked up the idea: "All the sensors needed to measure milling forces are available on the MS series machining center... If it is based on the MS45T three-axis CNC machining center, then only the machine tool system needs to be modified to control cutting through digital adaptive cutting parameters. force, thereby compensating for the interference produced by the tool end during the cutting process, preventing excessive wear, and maintaining a high chip removal rate..." "But when it comes to the specific machining process...if you want to directly determine the processing volume error through the tool position deviation, you must ensure that the impact of the clamping process on the workpiece is so small that it can be ignored..." This time, before Chang Haonan could speak, Yang Weihua, who had been writing furiously with his head down, suddenly raised his head: "I have a relatively mature solution to this problem..." Chang Haonan''s original plan was to isolate the deformation caused by clamping and control it using a deformation prediction method based on the stress field, considering that the clamping deformation basically occurs within a short period of time after the clamp is released. But when he suddenly heard someone say this, he immediately became interested. "Tell me more carefully?" As a technician with a certain reputation in the industry, the process of almost being confused just now was definitely not a good experience for Yang Weihua. And now, it was finally time to get to the part he was good at. Simply put, it is to embed a pressure sensor in the clamping device to monitor in real time the change in force between the workpiece and the clamping device due to changes in residual stress. When the clamping force reaches a certain threshold, the clamping is released and the workpiece is released. Transformation "For example, for workpieces such as blades, three fixed clamping units can be set up in the middle to completely position the workpiece to ensure the processing benchmark, while the surrounding floating clamping units and auxiliary support units can ensure deformation release and re-clamping... In this way On the one hand, it can reduce the amount of deformation as much as possible, and on the other hand, it can also predict the degree of deformation to a certain extent. While talking, he tore out a page from his notebook and drew a diagram of his idea. "This clamping method came to my mind during the development of the MS75T five-axis machine tool. However, no customers had such stringent requirements at that time, and the improvement of a single fixture would not help control deformation in machining if it is not combined with other technologies. , so in the end it was transferred to technical reserves..." Although the introduction was very complete, it did not completely convince Wei Yongming: "You said that floating clamping processing can fully release deformation while ensuring the processing benchmark, but the current "N-2-1" positioning method requires that the position and shape of the part remain unchanged during the entire processing process. Between the two There is clearly a conflict." In addition, traditional positioning methods will set the distance between positioning points as far as possible in order to maintain the stability of the workpiece. For floating clamping processing, too far between the positioning points will limit the release of deformation, and the distance between the positioning points will be limited. Too close will cause the parts to become unstable. How are you going to do this?" Since Yang Weihua dares to speak out, he has obviously already considered this issue: Just divide the workpiece into a fixed clamping area and a floating clamping area. "The fixed clamping area uses three fixed clamping units to limit the 6 degrees of freedom of the workpiece to ensure the processing benchmark. The remaining areas are floating clamping areas. Multiple floating clamping units are used to assist positioning. The float is adjusted after the workpiece is released and deformed. The clamping unit adapts to the deformed posture of the workpiece and assists in positioning the workpiece again in the deformed state..." "As for the calculation of the fixed clamping area, the intermediate state center of mass of the workpiece can be calculated based on the machining dynamic feature information model to ensure that the fixed clamping area can envelope the center of mass during the release of deformation." The so-called machining dynamic feature information model is a database type service provided by Torch-C.B. Ferrari for users based on the digital simulation technology first provided by Chang Haonan. Complex intermediate state geometries can be transformed into the superposition of multiple simple layers. Combining the full linear motor driver and honeycomb structure patents at the hardware level, it is extremely attractive to users who have relatively standard product specifications (with clear grooves, ribs, holes and contours) but have higher precision requirements. Mainly reflected in the fact that the processing efficiency is almost double that of competitors. Of course, as Yang Weihua said, it can play a role in the field of floating clamping. "What if the processing object is atypical and the distribution of the center of mass is not concentrated enough?" As the actual person in charge of the industrial control system, Wei Yongming naturally had to consider it in advance, especially when he knew what his boss wanted to process: "For example, for turbine fan blades, the center of mass changes greatly during the machining process. It is probably impossible to manually determine the fixed clamping area, right?" This question really targeted Yang Weihua''s weakest part. The latter couldn''t answer for a while. Therefore, the atmosphere that was very anxious just now suddenly cooled down. "This problem... is not difficult to solve." It wasn''t until they heard this sentence that Wei Yongming and Yang Weihua remembered that Chang Haonan hadn''t made a sound for a while since just now. I originally thought I was listening to the two of them arguing. But now it seems... that doesn''t seem to be the case. "Comrade Wei Hua also said just now that three fixed clamping units can limit the six degrees of freedom of the workpiece. Then the optimization of the fixed clamping area is equivalent to enveloping as much as possible in the smallest possible area. The dynamic center of mass... rather than just calculating an intermediate state, especially for special-shaped parts with large changes in the center of mass. Chang Haonan slowly said: So, for complex parts that cannot be analyzed manually, you can consider using some optimization algorithms to achieve it, such as discretizing the boundary of the part into multiple points according to the arc length, and then setting the span of the fixed clamping area in the main deformation direction of the workpiece. value as a penalty item..." "Of course, the existing basic algorithms may not be very suitable for this kind of specific problems, but in short, we can continue to optimize based on genetic algorithms or differential evolution algorithms..." Before Wei Yongming could react, Yang Weihua, who was originally encouraged, was dumbfounded - Why do the ideas that I came up with first always seem more familiar to me than myself? (End of chapter) Chapter 1107 I have three methods, three! Chapter 1107 I have three methods, three! It is of course impossible to say that Chang Haonan can completely understand this technology in just a few dozen minutes. It''s just that he is better at refining the essence of the problem. With this sentence just now, the subsequent research direction has been basically determined. That is to say, error modeling is combined with adaptive compensation in the cutting part, while floating clamping is used in the clamping part to minimize the post-processing deformation caused by the fixed area. Of course, even so, the precision of picking is still not as good as the handwork of a master. But its a necessary step to move the aerospace industry toward true scale. In fact, Yang Weihua also raised concerns in this regard. Chang Haonan''s answer was the same as in the previous meeting at Haofa Group - You can carefully select from a batch of products, distinguish several batches with higher consistency, and install them on the same engine respectively. This seemingly wild idea is almost subversive for Yang Weihua, who has a background in mechanical processing. He stopped packing his things and stayed there for a long time: "When I entered the industry, the first thing my master taught me was standardized processing... Now it seems that I am a little behind the times..." The tone was full of emotion. Given Yang Weihua''s age, he should have entered the industry in the early 1980s, which happened to be the second round of large-scale upgrades in China''s machinery industry. It''s been about twenty years now. You know, in the early years when our country''s processing accuracy was not good enough, this method of selecting qualified products from a batch of products was implemented. It is through the efforts of their generation that a relatively complete standardized processing system has been established. Now we have to go back. The Classic server is now open. "Standardization, of course, is correct." Chang Haonan also felt the other party''s emo, and replied with a smile: "However, for truly high-demand production, no matter how precise the production method is, there will always be errors, so in terms of processing results, there is no standardization in a strict sense." "In this case, we might as well change our thinking and implement standardization in the production process field, and use production efficiency to make up for the lack of product consistency to a certain extent..." In this era, most peoples understanding of high-level production is relatively simple. High precision and good replaceability. It''s still the same thing as in the 1980s. But in fact, let alone mechanical manufacturing, even in the field of semiconductor processing, there are random errors. Theres no shame in being special. The key is to be able to figure it out... After some enlightenment, Yang Weihua left the conference room thoughtfully. But Wei Yongming seemed to have no intention of leaving. Even the laptop on the table was confiscated. "Yongming, is there anything else?" Chang Haonan stopped moving when he saw this and sat back on the chair again. He and Wei Yongming are similar in age, and they are old friends who have known each other for a long time, so they call each other more casually in private. And Wei Yongming didnt waste any time and went straight to the point: "I just carefully analyzed the clamping method proposed by Lao Yang. If it is refined into a multi-objective optimization problem, there are only three decision variables, but the objective function can be completely more...especially for workpieces with a relatively large degree of bending and torsion. "There must be at least four or more." Chang Haonan didn''t speak, but just nodded to indicate that he was right. This natural look almost made Wei Yongming lose his confidence. However, after regaining his composure, he continued to speak: "But... multi-objective optimization using genetic algorithms is generally based on Pareto dominance. As the number of targets increases, the number of non-dominated solutions in the population will increase exponentially, leading to a rapid deterioration of the algorithm''s search capabilities..." "I have previously tested the non-inferior sorting genetic algorithm''s solution to a four-dimensional objective optimization problem...even after many rounds of adjustments, it ended up diverging...or a solution with poor accuracy, and the calculation time was exaggerated. For our group Maybe it doesnt matter, but when it comes to implementation, the production side may not have such a high level of computing power to support it Wei Yongming said, opening a PDF file from his computer, then turning the screen towards Chang Haonan. After a brief look at the latter, I found that it was a fairly typical grid search problem. It seemed like some kind of random test. "That''s true." Chang Haonan pushed the computer back: From an intuitive geometric perspective, an optimization problem with an M-dimensional objective is equivalent to dividing each dimension of the objective space into r grids. Assuming that the non-dominated solutions to the problem are uniformly distributed, then the boundary of the Pareto front of the grid , constitutes the upper bound of the number of particles. He said and drew a three-dimensional diagram on the paper. "Obviously, for an optimization problem with M objectives, M*r^(M-1) solutions are needed to form the Pareto front. For an optimization problem with 5 objectives, even if we set r to a relatively low 25. It still requires nearly a million solutions to characterize the basic Pareto front... It is normal for some unexpected calculations to cause divergence, or for several months to be unable to provide results. " Wei Yongming breathed a sigh of relief. Obviously, it''s not that his question is too simple, it''s just that Chang Haonan seems to be mentally prepared: "Then the next research direction is..." Unexpectedly, Chang Haonan shook his head directly. "Not sure yet." Wei Yongming was immediately shocked. However, before he could organize his words, Chang Haonan continued: "I have initially thought of three technical routes, but I don''t know which direction is more suitable yet..." The former wiped the sweat that had just appeared on his forehead and swallowed back the words that had reached his lips: "Just tell me, if it doesn''t work, we can all try..." This time, Chang Haonan did not write anything more, but took out a notebook that he had prepared long ago: First of all... you can enlarge or reduce the objective function value of an individual according to a certain proportion, and then compare it with other individuals, that is, relax the Pareto dominance relationship, so that you can compare the advantages and disadvantages of some non-dominated individuals and enhance the search of the algorithm. ability." Wei Yongming''s thinking also moved quickly: "Using this idea can improve the differential evolution algorithm...but it seems that it can easily lead to individuals falling into cyclic dominance?" "So it still needs improvement, and the differential evolution algorithm is actually not particularly suitable for this kind of problem... Anyway, we will study it in detail later." Chang Haonan waved his hand, then turned the notebook to the next page: "Performance evaluation indicators can also be used as the objective function to replace the Pareto dominance relationship to guide the search process... However, this type of algorithm can only obtain one solution each time it is run. It requires multiple calculations to obtain the optimal solution set, and it is easy to fall into the interval minimum. excellent." "The last thing is not to consider the goals that have little impact on the search process or the final optimization results, that is, reducing the dimensionality of the objective function. I am personally optimistic about the prospects of this technical route, but there are many problems that need to be overcome mathematically..." Hearing this, Wei Yongming couldn''t help but complain in a low voice: "This is actually a good thing..." However, Chang Haonan, who has sharp ears, caught it: "You can''t say that." "After all, we still have to consider the user''s feelings... If it is too complex at the algorithm level, we will inevitably encounter obstacles in future promotion..." (End of chapter) Chapter 1108 Unintentionally promoted history Chapter 1108 Unintentionally promoted history While Chang Haonan was thinking about how to overcome the problem of processing large-size wide-chord blades. France, Paris. Jean-Jacques Dordan was frowning as he looked at the two reports in front of him that had similar content but completely different conclusions. It''s all about China''s aerospace engineering. In fact, China''s successful first manned space flight has become the biggest topic of the European Space Agency (ESA) in the past half month. But on this topic, ESA is divided into two completely different factions. One group advocates that there are never too many escape routes, and that when its own resources are insufficient, it should try to open cooperation with any other country and organization with space capabilities. After all, just a few months ago, they even signed an agreement with Roscosmos, with the latter specifically developing a Soyuz series rocket suitable for the Guyana Space Center to alleviate the problem of tight European space transportation capacity. From this point of view, having a few more partners is not a problem at all. The other group believes that although China''s aerospace level is in a promising situation, its foundation is not solid and the ground is shaking. Its own areas of expertise are highly overlapped with those of the EU. The introduction of cooperation is completely intensifying competition, and it also needs to take into account the United States. human risk. As an organization established with the support of the European Union and multiple countries, even though Dordan is the director, he does not have the unequivocal influence within ESA like his counterparts in other countries. More often than not, he seems to work more like a coordinator. Not only must the interests of various member states, especially the initial member states, be balanced, but the impact of the external environment must also be taken into consideration. For example, NASA is keen on long-arm jurisdiction... In short, the oil and water are rich, but the money earned is definitely useless money... At this moment, a sudden knock on the door interrupted Director Dordan''s sigh. After looking up at the person who came, he performed a face-changing art at the speed of light and quickly stood up to invite the person in: "Bernard, long time no see..." As he spoke, he picked up two cups and placed them in front of the two of them: "Want something to drink?" Bernard Kandel is an ESA policy development advisor and an honorary professor at the Institut Universitaire de France. "No." Kandel waved his hand, obviously not accepting this trick. He is considered a veteran within ESA, but his current title is only nominal. He has neither real power nor much control. If I hadnt had a good personal relationship with Dordan, I probably wouldnt have made the trip: "You made a special trip to call me here, I guess it''s not just to reminisce about old times..." Dordan, whose purpose was directly revealed, only showed a moment of embarrassment: "The Chinese side...has posed a problem for me this time." This sentence made Kandel immediately stunned: "You mean... they sent their first astronaut into space?" "Otherwise..." Dordan sighed: "What else could it be?" Kandel almost laughed out loud when he heard this: "But we...no, it''s you. Haven''t you given up on independently completing the manned spaceflight project a long time ago?" There was a strong sense of schadenfreude in his tone. But Dordan just shrank his head and glanced at the other party - In the mid-1980s, ESA had a manned space program that was expected to cost more than 100 billion West German Marks. Kandel himself is an enthusiastic supporter and promoter of this plan. However, if Europeans are asked to implement such a complex project, the results will not be surprising - ESA ultimately proposed a stifling three-stage development route. The first is to develop a spacecraft similar to the Soyuz, and develop an improved version based on the Ariane 3 rocket to send the spacecraft and astronauts into space. The second one is the Space Shuttle Emissary, which is slightly smaller than the U.S. Space Shuttle. It is expected to be launched by the Ariane 5 rocket that was still in the plan at the time. The third is to develop the "Columbus" space capsule, which is actually a small space station that allows astronauts to stay in orbit uninterrupted. Anyone with a discerning eye can see that the problem is already huge - Spaceship - space shuttle - small space station. The relationship between the three is not so much a succession relationship, but a parallel relationship. Especially the first two items. Indeed, even though the Soviets already had spacecraft, they still began to develop the new Buran space shuttle in the 1980s. But after all, the Soyuz has been used for almost 30 years, and iterating new products is a smooth process. What about your ESA? Resources are not enough to begin with, and two delivery vehicles have to be built at the same time. It''s unreasonable no matter how you look at it. In short, despite the mutual refusal, we finally came up with such a plan full of compromises. The whole plan had to come to nothing. Only the name "Columbus" has been used on a module of the International Space Station. Kandel was also stimulated by this incident and left ESA''s business line. Now looking at the Chinese people coming from behind, it is inevitable to have the thought "you really deserve this". Dordan, who had also experienced the whole process that year, could not easily refute, had to change the topic: "It''s not entirely related to manned spaceflight..." He said and took the two reports on the table: "Anyway, take a look at this first." Although Kandel was still holding his breath in his heart, after all, he had a good personal relationship with Dordan and it was impossible to directly offend him. After all, its here. Therefore, I finally took it into my hands and quickly turned it over to the end at the speed of one glance and ten lines. After a period of silence, he slowly said: "I think... in the field of aerospace, international cooperation is the general trend after all. Even the Americans and Russians can come together to build a space station. It is not unreasonable for some people to hope that we will be open-minded on this matter..." Dordan''s eyes moved slightly. It seems that the other party supports the first opinion. But before he could speak, he heard Kandel change the subject: "But we must also consider that our aerospace projects are deeply tied to NASA, and the risks mentioned in this second report do exist..." "Currently, it seems that what the Chinese are good at is developing functional space payloads, such as satellites and spacecrafts, but their shortcoming is the lack of large rockets with strong carrying capacity. This is completely consistent with our ecological niche in international aerospace...it cannot be simply used Judging from the situation in the EASA aviation industry..." These words are of a very high level. It''s like saying something. Humphrey possessed belongs to yes. Dordan also showed an expression that he couldn''t bear to look at: "I invited you here today, not to help me carry water..." Kandel shrugged and put down the two reports in his hands: "I don''t even need to look at the name of the person who submitted the report to know that this is an internal struggle between the ELDO faction and the ESRO faction... You, the director, can''t do anything to them. What can I, a professor who left ESA long ago, do?" ELDO, European Launch Vehicle Development Organization. ESRO, European Space Research Organization. These are two organizations established simultaneously in 1962 on the basis of the European Community in the early days of space exploration. Although the two merged to form today''s European Space Agency in 1975, the entanglement of interests between them does not disappear so easily. On the contrary, it is intensified due to resource sharing. The previous extremely abstract manned space program is also related to the infighting between these two factions. The positions of the two parties have differed at different times, but in general, the former prefers open cooperation, while the latter prefers to bind NASA. As for why the previous cooperation with the Russians was able to pass... That''s also because NASA took the lead. Now that the partner has been changed to China, the ESRO faction is naturally not so easy to talk to. Before Dordan could speak again, Kandel asked: "Speaking of which... I remember at the beginning of this year, weren''t we going to cooperate with China on the Galileo satellite navigation system? Why didn''t we let it go?" "Don''t mention it..." The former loosened the tie around his neck: "We have just begun to discuss the feasibility of cooperation internally. We have not even decided on the candidates for the inspection team sent to China, and the news leaked out... The Americans put very strong pressure, and many people who were initially inclined to cooperate quickly changed. I lost my attitude and finally had to put it aside for the time being..." Kandel spread his hands and showed an "I knew it" expression: "So you see, even the cooperation on a global satellite navigation system will be leaked so quickly. If you want to cooperate with China in the more sensitive field of manned spaceflight or even deep space exploration, what is the difference between that and dreaming?" Dordan was speechless. After a long while, he said sadly: "The bond between us and NASA... is indeed a bit too deep..." Unexpectedly, this somewhat self-defeating speech made Kandel change his mind: "Actually...it''s not impossible." "Ah?" Dordan became energetic instantly. "Your ESA has been penetrated almost like a sieve... there is definitely no hope." Kandel put it very bluntly. "Well" Dordan scratched his head in embarrassment. Kandel ignored him completely: "If you really want to break the situation, you can only consider opening up private capital to enter the aerospace industry, and then find a white glove to complete the matter..." (End of chapter) Chapter 1109 March towards intelligent production! Chapter 1109 March towards intelligent production! Release private capital? Although Dordan has been acting like an ordinary bad old man who is obsessed with stalking, since he can get to the top of the European Space Agency with complicated interests, he must not really be a fool. Almost as soon as Kandel finished speaking, his whole aura instantly became sharper. A pair of fox-like eyes narrowed slightly and swept over the former''s body several times. However, just a few seconds later, Dordan once again restored his amiable image. It was as if the changes at that moment had never existed. "When you said that, I remembered... It seems that in 2000, a company of similar nature was established in the United States. It should be called Blue Origin?" He did not respond directly to Kandel''s suggestion, but instead brought up a topic that seemed related, but not particularly relevant. The latter was stunned when he heard this. It seemed that he did not expect that the other party would suddenly mention things in the United States, but he quickly nodded: "Yes, it was founded by an Internet business owner named Jeff Bezos." In 2003, the world had not yet completely recovered from the previous Internet bubble, and Bezos was not yet the world-famous richest man in the world. For outsiders, it is normal for them to have never heard of it or find it unfamiliar. "But I heard that that company is still only doing some research on suborbital spacecraft?" Obviously, Dordan was not unaware of this. Kandel, who realized that he had entered the opponent''s rhythm, also reacted quickly: "It''s not important... Anyway, you don''t expect this company to really research anything. It just needs a clean and safe medium to facilitate hedging bets." He shrugged: "Of course, ESA, as a space agency, must have corresponding supervisory powers... But as long as the market can be opened, no matter what is done, it will be purely commercial. Since it is commercial, there are a hundred ways to do it. Bypass supervision..." Dordan quickly captured the opponent''s key points. It is not the private capital mentioned above. It''s business behavior. Do you want the aerospace industry to be commercialized? He changed the way he talked in circles just now and directly hit the essence. Such a rapid change caught Kandel off guard. "It''s not that I want it...but that you need it." He still hopes to deal with it in a painless way: "As long as it is a project that ESA is deeply involved in, NASA will definitely get the information faster than you, the director... Instead of doing this, it is better to let ESA just be the party A, so that NASA and you can be confused." However, Dordan is not so easily fooled: "Bernard..." He showed a somewhat weird smile: "I know that after you left ESA, apart from being a nominal consultant and an honorary professor, your main business has been an independent analyst..." At first, Dordan invited Kandel here just to ask for advice. But from the moment the latter talked about commercial aerospace, he had already realized that the other party actually wanted the same thing from him. Kandel''s smile froze on his face after being directly pointed out. But it only lasted a short time: "All right" Having said this, if you insist on refusing to admit it, it will affect the friendship: "I do have many customers who hope that NASA or ESA can start the commercialization process of the space industry, such as launching a commercial orbital transportation service... You know, after the Internet bubble, a lot of hot money has no good place to go. If it keeps idling, time will The risk is very high..." "But there will be no loss for you and the entire ESA. The ELDO faction can get rid of NASA''s control to a certain extent and obtain the multi-party cooperation they want. After commercialization, a considerable part of the orders will definitely be handed over to American companies and the ESRO faction will not have any objections. They are all satisfied, and you, the director, will naturally be able to sit more securely..." "And you, the middleman, can also get a huge commission from it." Dordan spoke directly, interrupting the other party''s painting. "really." Kandel did not deny this: "So, it''s not a bad thing for all of us." In fact, the so-called commercial aerospace is very simple to put it bluntly. That''s outsourcing. At first glance, it doesnt sound like a good word. However, for organizations like NASA or ESA that have become bloated and inefficient due to various reasons, outsourcing can reduce a lot of troubles. Therefore, Dordan did not refuse immediately, but just thought about it alone for a while: "Commercialization... I''m afraid it''s not as easy as you think." This response seems to be negative. But it actually leaves enough room. "So...it''s not about getting it right in one step." Kandel smiled and said: "First of all, you can start with some simple projects, and by the way, you can also try the depth of Chinese people..." Dordan still didn''t nod. But there was already some looseness in his eyes... Commercial aerospace is naturally not something that a few people can promote with a few words. Chang Haonan naturally had no way of knowing that several of his seemingly unrelated actions would even affect the pattern of the aerospace industry. In the next nearly month, he spent almost all of his time at Torch Group, testing several typical multi-objective optimization algorithms. With Chang Haonan''s current theoretical foundation and a little help from the system, there is no difficulty in this task. Its just that the workload is really staggering. The multi-objective evolutionary algorithms proposed by academic circles in the past thirty years, even if only those with application value are considered, are no less than two hands. Combined with the three improvement ideas proposed by Chang Haonan... Even if some of them can be directly eliminated through theory, the remaining ones are by no means a small number. Fortunately, for the entire adaptive machining technology, this set of algorithms is a relatively isolated part. It is only used to determine the clamping methods of different types of workpieces and will not affect the development of machine tool hardware and industrial control programs. Until one night in early December. Chang Haonan ended his short break and walked into the computer room as usual. But this time, what appeared in front of him was not the busy scene of a group of researchers. Instead, more than a dozen people, including Wei Yongming, sat around a computer and whispered. For a moment, no one even noticed Chang Haonan coming in from outside. Finally, he came over and asked: "Is there any progress?" The sudden sound coming from behind scared several of them. Wei Yongming also quickly stood up: "Mr. Chang, the comparison results are out." Although when he saw this posture, Chang Haonan guessed that there must be a breakthrough. But reaching the end point directly is quite unexpected: "All out?" "That''s right." Wei Yongming directly put the report that had just been printed next to Chang Haonan into Chang Haonan''s hand: "Sample No. 14, a particle swarm algorithm that replaces the particle speed update formula with Gaussian sampling of the global best position and the best individual particle position, and sample No. 22, which is a genetic algorithm optimized for dimensionality reduction. These two The results of the group test are obviously better than those of other groups, and are actually better than our initial estimates, but it is still unclear which one is better between them..." The optimized particle swarm algorithm itself was something Chang Haonan was optimistic about in advance. Of course, the result did not disappoint him. As for the other one "No need to conclude." Chang Haonan quickly looked at the final result: "Get the production end and test it in practice!" In fact, he doesnt have to compete with others With only two options left, and the performance is still comparable, the final result is definitely "I want them all." Let the customer decide which algorithm to use based on the actual situation. And the reason why I proposed to do production testing is just in time... "Has the hardware adaptation on Lao Yang''s side been completed?" Wei Yongming''s movement of sorting out the information in his hands stalled. Although he and Chang Haonan are responsible for the industrial control system and the clamping and positioning algorithm, at the software level, as long as the theoretical foundation is solid and the ideas are streamlined, the results can be produced relatively stably. On the contrary, it is the hardware aspect. The machine tool is not a home computer and is far less compatible than the latter. After the industrial control system is updated, it often takes a lot of effort to adapt. In particular, most of the entire action system comes from Italy, so we have to connect with them in the middle. And the efficiency of the Italians All I can say is that everyone who understands understands. "It''s a coincidence that the acceptance test just passed yesterday..." Chang Haonan showed a satisfied smile. Due to the principle of software adapting to hardware, production testing naturally had to be arranged in the workshop of Torch-C.B. Ferrari. As Yang Weihua said before, the adaptive processing prototype machine is improved on the basis of an MS45T three-axis CNC machining center. Therefore, from the appearance point of view, it seems to be no different from the same product next to it. But after the machine tool is started, the production data that needs to be imported is much more complicated than that of the old model. Three-axis machining centers cannot produce overly complex curved surfaces. For example, when milling the flow channel of an impeller, the milling cutter needs to extend into the flow channel. If there is no swing head on the spindle or a turntable on the workbench, the processing cannot be completed. Therefore, Chang Haonan just provided a typical aluminum alloy aircraft structural part as a test object. The clamping and positioning algorithm itself is very complex and it is impossible to complete the calculation through the machine tool itself. But MS45T allows external devices, which makes up for this shortcoming to a large extent. "The test begins!" Following Chang Haonan''s order, a group of technicians began preparations. Soon, the algorithm control parameters and workpiece processing plan were input into the computer. "The axial cutting depth is set to 6mm, and a non-uniform machining sequence is used. A total of 168 intermediate state centroids are generated, of which 159 (94.64%) centroids are enveloped by the optimized fixed clamping area. After 18 rounds of iterations, the objective function Converging to 0.7789 "The coordinates of the three anchor points are A (394.73, -219.87), B (367.00, 0), C (292.07, -218.40)..." Wei Yongming had just finished reporting the calculation results, and Yang Weihua had already completed the three-point fixation of the thin plate blank to be processed. The next step is to import the processing program into the industrial control system. Since the code had been written in advance, the entire process lasted less than 10 minutes. After the safety officer finally determined that the equipment was in good condition, the protective cover was closed. Immediately afterwards, everyone heard the sound of cutting fluid impacting the milling cutter and the sound of the milling cutter cutting raw materials. The protective cover shell has a transparent window that allows the operator to see clearly the working conditions inside. But with this kind of precision processing, you can''t actually see it with the naked eye. Fortunately, after the MS45T has been upgraded, it can directly display the measurement value of cutting force. Therefore, just by looking at the screen, you can get a general idea of ??the current operating status of the machine tool. In fact, the general processing process is not much different from the traditional method. Just because the cutting edge needs to be changed to calculate the compensation amount, the speed of the tool feed is obviously slower, and the interval between each two rounds of action is also extended a lot. But it saves the process of manual stress release. It also reduces errors caused by repeated clamping. Even, secondary compensation will be carried out for some areas that fail to meet the requirements... In short, it is to highlight a worry-free experience. Yang Weihua looked at the knife moves that kept popping up on the screen in front of him, and suddenly felt a little dazed: "Mr. Chang, if all products can be processed in this way in the future, wouldn''t it only require the input of a few parameters... or even the need for personnel to be on site to operate it?" Chang Haonan gently touched his chin: "It''s not possible to achieve this level in a short time, and it''s just a relatively simple process like cutting." "However, this can indeed be regarded as the first step in intelligent production..." (End of chapter) Chapter 1110 Now Im promoted to academician level Chapter 1110: Now promoted to academician level For a set of industrial equipment, production testing is only the first step before it is put into use. Moreover, it only tested the production of one type of material and one type of workpiece. If compared to the aviation field, it is basically equivalent to a model that has just completed its first flight. Next, this modified MS45T prototype still needs to undergo multiple production capacity appraisals in accordance with factory standards. In fact, because this is China''s first machine tool with complete adaptive processing capabilities, even the factory standards need to be revised. It seems like I have returned to the winter of 1996, when I was testing the turbojet 14 and revising the national standards... Of course, things are different these days. Chang Haonan''s personal influence and status have already grown by leaps and bounds. In addition, this was originally a complete blank, and there were no vested interest groups affected by it. There won''t be any resistance. As for the product itself, even if the adaptive processing machine tools are mainly aimed at high-end users, we still cannot expect that the production line operators have the theoretical foundation of Chang Haonan and Wei Yongming, and can manually create a program based on the processing characteristics. Therefore, it is necessary to package the technology developed during this period into software that normal people can understand and learn. Fortunately, Wei Yongming and the entire Torch Group are already familiar with this aspect, so Chang Haonan does not need to worry too much. Thanks to this, he stayed in seclusion for almost another week, basically sorting out the follow-up work, and was able to be temporarily freed from the complicated and specific work at hand. After all, its the end of the year. This is the first year after the Science and Industry Committee was restructured into the Industry and Construction Committee. As one of the main leaders of the Aerospace Power Group, he has to come up and summarize the work throughout the year, and then make a statement on behalf of all technical staff. Chang Haonan personally is not keen on this kind of process. But it can''t be called annoying. After all, if you enjoy the extra resources brought by this position, you will always have to do some corresponding work. So early the next morning, he came to the headquarters of the Aerospace Power Group, which he had been away from for a long time. As luck would have it, as soon as I got off the car and walked to the door of the building, I saw the leader, Zhu Linyu, wearing a leather hat, standing at the door and personally directing several people in the hall to work. It looked like they were preparing to hang some banner. Generally speaking, for this kind of small work, just let the publicity department assign someone to take charge of it. It is obviously not an ordinary matter for a big leader to go down personally. But Chang Haonan thought about it for a while, and he really didn''t think of anything major happening recently. The group''s annual meeting is about to start, but it seems that it can''t bear such weight... "Mr. Zhu!" Chang Haonan greeted the other party: "What activities are you preparing for?" Hearing the voice behind him, Zhu Linyu turned around suddenly and stared directly at Chang Haonan. There seems to be some... Inexplicably eager? Seeing that the latter subconsciously wanted to take two steps back. However, before he could take a step forward, the 70-year-old comrade in front of him took two steps forward with a smile on his face. His movements were even more agile than Zhu Yadan, a professional security guard: "Congratulations, Academician Chang!" As Zhu Linyu spoke, he held Chang Haonan''s hand tightly and shook it twice. If it weren''t for my youth and strength, I might be at risk of dislocation. However, the latter could no longer care about this. "???" The name he just called was like a thunderbolt. "Not later..." Chang Haonan quickly raised his hand to stop the other party from singing: "Isn''t this bad..." Although even he himself felt that this selection was a sure win, but calling him out directly seemed to be a bit of an official decision... At almost the same time, the staff standing on the ladder next to them had already hung up part of the red banner. Although half of it was still hanging on the ground, the sharp-eyed Chang Haonan still noticed the first few words - "Warm congratulations to Chang Haonan and Yan Zhongcheng of our group..." have to. There is no need to read the following content. You can guess it directly. As for Chang Haonan himself, no one can guarantee that Yan Zhongcheng will be elected as an academician in 2003. Therefore, it should not be decided in advance. But... "hiss" Chang Haonan suddenly realized that what happened during his period of seclusion may be more than imagined... "Mr. Zhu, this means...the results have come out?" "My Academician Chang...it''s already December 10th." Zhu Linyu put his hand on his forehead and showed a completely unbearable expression: "In previous years, the two houses made public announcements in mid-November and finalized the results at the end of the month. This year, it was delayed for less than half a month because of your affairs, and it was only postponed to December." No matter how indifferent they appear to be when others evaluate academicians, in fact they will definitely confirm the results as soon as they are announced. But Chang Haonan''s review is not good. The publicity period is over, and he doesn''t know it yet... Even the various documents that need to be submitted are handled at the group level. Chang Haonan couldn''t help but feel a little embarrassed when he heard this: "Did you say that this year''s second round of selection might have on-site reporting and defense sessions... I''ve been preparing for it for a while?" Of course this is just his excuse. Actually Laughing like crazy, I''ve been busy with adaptive processing and didn''t even have time to prepare. He had even made plans to use the processes used to prove Poincar''s conjecture to make a fool of himself if he was really drawn. Anyway, so far, the academic community has not been able to fully utilize the theoretical tools they developed back then. "Indeed there is." Zhu Linyu nodded: "Not to mention others, Academician Yan went there before. It is said that the formation was very big, and it was like a three-chamber trial..." "It''s just that I estimate that the academicians also felt that asking you to defend on site would make everyone more embarrassed, so no one called your name." "Okay..." Chang Haonan is naturally happy to save trouble: "Then should I participate in some activities later?" "You''re quite aware of it...even if you didn''t come today, I would have to go find you specifically." Zhu Linyu looked at Chang Haonan, who had no consciousness of being an academician, and shook his head helplessly: "Next Monday, December 15, there will be a symposium for newly elected academicians of the two academies. The above means that you can make a speech as a representative of the new academicians." For Chang Haonan, this request was not surprising. He almost has the content ready-made. But before that, there''s one more thing that needs to be determined. "That...does it represent the new academician of the Academy of Sciences or the Academy of Engineering?" This issue is indeed a bit unanswerable. Even Zhu Linyu, who had been enthusiastic just now, couldn''t hold it in anymore: "Thanks to you, Academician Chang, this year the Academy of Engineering and the Academy of Sciences will hold the ceremony together, and the invited representatives will not distinguish between them, so you can talk about any aspect..." Chang Haonan also began to feel at this moment that the question he just asked seemed a bit too outrageous even though it was his own business. "Sigh... I''m really sorry. It''s my first time to be elected as an academician. I have no experience..." Zhu Linyu waved his hand feebly: "It''s okay. This is my zeroth review. Everyone has little experience..." The current result is a matter of course for Chang Haonan. In fact, from several years ago, everyone basically agreed that it was only a matter of time before he was promoted to the academician level. So in the past month, he really didn''t take the second round selection too seriously. But when its all said and done, its all about doing. Academician. No matter which country it is in, this is an honorary title regarded as a lifetime achievement. If you really dont have any feelings at all, it can only be said that you are out of the human category. Chang Haonan is far from reaching this state. When I was really hit by the good news that the dust had just settled, I actually couldn''t get over it, so I still joked with Zhu Linyu as usual. It wasn''t until I said goodbye to the latter that I gradually felt a little dizzy. Even when someone said hello on the way upstairs, he couldn''t quite remember how he responded. Anyway... Very cool! (End of chapter) Chapter 1111 New Academician Symposium (counting yesterday’s event) Chapter 1111 New Academician Symposium (counting yesterday) In 2003, on the one hand, society as a whole was still in the wild atmosphere of the past, and on the other hand, there was a lack of various self-media that could watch the excitement and not take it too seriously to hype it up. In short, the public was actually very interested in academic affairs. Not that big yet. What''s more, the news that Chang Haonan is a dual academician had already passed when the results of the first round of selection were announced. Therefore, the news of the results of the election of academicians of the two houses of Congress did not cause much disturbance to the outside world. But for people in academic circles, this is definitely a biennial event that is enough to cause local earthquakes. Even if an academician has left front-line scientific research work, the resources he can leverage behind him range from tens of millions to countless. And for some young academicians who are still in their prime and still have the ability to shine, their prospects are even more immeasurable. At the same time, the limited number of academicians also determines that in each round of academician selection, there will be winners and losers. The entanglement of interests involved is enough to make many people put down their posture... No, as soon as Chang Haonan arrived at the office, before his **** was even warmed up, the phone on the table rang. It was Tang Lintian who called. "Principal Tang." Comrade Lao Tang is now close to sixty years old. Starting from the past two years, he has handed over the research team to his chief disciple, saying goodbye to scientific research and switching to administration. Therefore, he definitely looked at Chang Haonan as a golden pimple: "Academician Chang, the two of us are old acquaintances. Saying too many words of congratulations would seem to be foreign." Tang Lintian got straight to the point: "After the certificate is officially awarded in a few days, remember to go back to school... If you really don''t have time, you can ask someone to come over. In short, your treatment standards will be raised according to the standards of a first-level professor..." In fact, for Chang Haonan now, the difference between a second-level professor and a first-level professor no longer matters. But after all, others proposed it enthusiastically and proactively, and the two of them had been in a relationship for many years, so it was impossible for him to give others a cold shoulder: Moreover, Chang Haonan was certain that the other party had hidden demands behind him. Now it''s just a foreshadowing. Of course, Beijing Hang University is his alma mater after all. Some requirements must still be met. "Then I''ll trouble you, Principal Tang. After we finish there next Monday, I''ll ask Teacher Liu to go over there..." Chang Haonan replied. Although the scale of Torch Laboratory has increased a lot, the administrative secretary within the group is still Liu Chenchen. And it was just as he had guessed just now. After this topic came to an end, Tang Lintian changed the topic at the speed of light: "One more thing, Academician Chang..." "When the new year comes around, let''s see if we can use our school as the basis to carry out some..." Halfway through the words, Chang Haonan felt his scalp numb. To be honest, he himself has a bit of a good-natured personality, but he is actually not very good at playing dumb. Especially when facing someone like Tang Lintian who had a friendship with him in the past. But at this time, there is really no way. It''s one thing to help schools where possible. But it is another matter to openly engage in small groups to cause trouble. Chang Haonan knew very well that if he couldn''t withstand the wave that just came up, there would be no end to this kind of thing. Therefore, he took a deep breath and interrupted Tang Lintian very decisively: "Principal Tang, regarding the project, I will definitely consider the young teachers in our school, but directly use Beijing Airlines as the base..." Fortunately, during the entire selection process, Chang Haonan rose to the position entirely through hard power and did not require Beijing Airlines or the Aviation Power Group to expend too many resources. So it seems reasonable to refuse now. What''s more, he didn''t completely refuse. However, Chang Haonan actually regretted it the moment he said the words. Because he realized that with Tang Lintian''s cautious character, the original purpose could not have been what he just mentioned. I''m afraid I fell into the other party''s trick of lifting the roof and opening the window. Sure enough, after hearing Chang Haonan''s answer, Tang Lintian didn''t even hesitate for half a second, let alone bargaining. Instead, he answered at the speed of light as if he was afraid that the former would regret it: "Then it''s settled..." Chang Haonan is actually very familiar with this routine. But at this moment, he was still in the post-ecstasy stage, and his mind couldn''t turn around for a while... Of course, this result is completely acceptable to him. After all, it''s just a relatively ambiguous promise. Tang Lintian was followed by almost constant phone calls one after another. In the end, Chang Haonan had no choice but to hide away, and then transferred all incoming calls on the outside landline to the office, and Zhang Liangping transferred them on his behalf. And he himself began to prepare for the next symposium of new academicians... The two academies jointly "welcome the new year", and the specifications are naturally extraordinary. Although there are not many academicians each year, there are more than 100 academicians in total. Therefore, the ceremony was arranged directly in the Great Hall. Although it is not the main conference hall, it is still full of cards. Not surprisingly, Chang Haonan saw many acquaintances at the scene. Needless to say, Yan Zhongcheng, who is also from the Aviation Power Group and was selected for the two projects of Turbojet 14 and QC300, including Song Wencong, who missed the opportunity because the J-10 was too late to become an army in the previous generation, is now in batch service with the J-10A and has formed combat effectiveness. , and the J-10E was successfully exported to Siam, and they did their part to catch up with the last bus - In fact, in the original timeline, the latter also successfully entered the second round of selection in 2003. However, due to well-known reasons, the number of academicians in the Department of Mechanical and Vehicle Engineering that year was almost taken up by the Shipbuilding and Aerospace Departments, and all candidates from the entire aviation industry system were wiped out... Now, it can be regarded as making up for the regrets of the past. In addition, there are Gao Wen from the Institute of Computing Technology of the Academy of Sciences, who studies intelligent computers in the information field and has communicated with Chang Haonan in the fields of video coding technology and machine vision, and Shen Junrong, who just broke up with Chang Haonan... As usual, the ceremony should begin with the deans of the Academy of Sciences and the Academy of Engineering reporting on this year''s selection status. But now that both sides are working together, the situation is said to be more delicate. Fortunately, the current president of the Academy of Sciences, Lu Yongxiang, was one of the first batch of double academicians when the Academy of Engineering was established. So let him do it all for you. At ten o''clock in the morning. Amid the sonorous march music and the waves of continuous applause, Academician Lu walked onto the podium on time with a big red folder in his hand. It wasn''t until he reached down to indicate for the second time that the whole hall gradually returned to calm. "Dear academicians and comrades, in the winter season, the mountains are cold and the water is cold, but this hall is warm and cozy... Today, we gather together to welcome this year''s newly elected academicians!" The first paragraph is naturally a routine phrase. But Academician Lu has a technical background after all, so he quickly got to the point. "After two rounds of selections that lasted for nearly four months, a total of 59 scientific and technological workers were elected as academicians of the Chinese Academy of Sciences, and 63 workers were elected as academicians of the Chinese Academy of Engineering. Today, there are also academicians'' units and institutions who came to the scene today. Team and family representatives "After this additional election, the total number of academicians of the Chinese Academy of Sciences is 688, with an average age of 72.1 years old (67.5 years old excluding senior academicians). The Academy of Engineering..." "The average age of the academicians of the Academy of Sciences co-opted this time is only 57.86 years old, a decrease of 2.06 years compared to 2001. The average age of academicians of the Academy of Engineering is 61 years old, a decrease of 1.55 years compared with 2001. This reflects the improvement of our country''s scientific research team. Major achievements in the construction of youth..." After finishing a long paragraph, Academician Lu also realized that it was not yet the certificate awarding ceremony, and he seemed to be a little too solemn. So, he temporarily put down the manuscript in his hand and made a little joke: "Of course, the average age can be reduced so significantly thanks to the fact that several particularly young comrades entered the ranks of academicians this year..." The originally tense venue suddenly relaxed a lot. A few areas even erupted in chuckles. Chang Haonan was sitting in the front row and lowered the age of both houses at the same time, so he naturally received the most attention. However, the young comrade just mentioned is actually not the only one. There is also a 37-year-old academician Zhang Yaping at the Academy of Sciences, who can also be called a hero among people. It also received a lot of applause. After livening up the atmosphere a little, Lu Yongxiang opened the folder again with a smile: "Then next, I would like to invite one of the young comrades I just mentioned, Comrade Chang Haonan, who is also a representative of the academicians of the two academies, to give a speech!" (End of chapter) Chapter 1112 I brought a gift to both Houses Chapter 1112 I brought a gift to both houses Following Academician Lu''s words just now, Chang Haonan stood up amidst the applause and gave slight greetings in two directions behind him. Then, he picked up a red velvet folder of the same style from the side and walked slowly to the podium. The venue is not too big. Chang Haonan sat in the front row again. The total distance is less than ten meters. But every step taken seemed extremely long. The figure burning the midnight oil in the computer room of Jinghang University. Prototype No. 04 flying into the sky at Beiling Airport. The J-7 has a narrow and cramped front cockpit. The turbojet 14 engine measured amazing data on the SB101 high-altitude platform. The first aviation development industry conference that almost drained the country''s research resources. The J-11WS verification aircraft equipped with domestically produced power made its first flight... Scenes from the nearly eight years since his rebirth appeared in his mind like a revolving lantern. When Chang Haonan came to his senses again, he was already standing on the stage somehow. In front of me is the open lecture notes. At this time, he finally understood why the conference team had repeatedly reminded them to enlarge the font size and widen the line spacing during typesetting Because under the mixed emotions of excitement and nervousness, the ability to recognize text will really decrease... "Dear seniors and dear colleagues, hello everyone!" In fact, it can be said that he is used to seeing people in big scenes. However, for the first time, when I was about to speak my first sentence, I felt that my throat was dry and my voice was slightly broken. Considering that he drank water before coming up, this was obviously a psychological effect caused by nervousness. Fortunately, the on-site microphone and sound effects are average, and you can''t really hear it after amplification. Taking advantage of the second round of applause, Chang Haonan quickly adjusted his attitude and continued: "First of all, I would like to thank the academic community for their recognition and support of my past work, which gave me the opportunity to be elected gloriously. This is the ultimate motivation and encouragement for me..." Although he was not prepared to turn this speech into an empty and boring routine from the beginning. But a symposium is always a semi-formal occasion. The necessary process of making a statement must still go through. "Today, I am honored to join the group of academicians, to be among the stars, and to shoulder the important task of continuing to write new glorious histories for the two academies..." "I will cherish this honor as much as I care for my eyes. I will actively devote myself to scientific and technological innovation with the mentality of starting from scratch, the courage to innovate, and the determination to reach new heights... and always maintain a humble heart..." Looking at Chang Haonan standing on the stage, his expression became more and more natural and his tone became smoother and smoother. Dean Xu Dikuang of the Academy of Engineering, who was sitting in the middle of the front row, leaned slightly and asked in a low voice: "I said Lao Lu, is this... specially arranged by you?" Academician Lu next to him didn''t react at first, and asked with a confused look on his face: "What are the arrangements?" "The speech." Academician Xu raised his chin slightly toward the stage: "I asked someone before if he needed our help with the process, but he said no, so it seems you should move faster..." Only then did the former understand, but immediately shook his head: "It''s not us...and he was the management of the Aerospace Power Group several years ago. There should be a dedicated office responsible for it..." While the two big guys were whispering, Chang Haonan on the stage had already finished setting up his character and started outputting content: "It just so happened that just before the co-option results were officially announced, a research I led made a breakthrough...Although I am not talented, I think I can be helpful to some projects in the engineering field." "So today, I will bring this achievement to my seniors and colleagues in the two chambers, just as a meeting gift..." The sudden change in painting style made all the big guys below show some weird expressions. "???" What scene haven''t I seen before? (cross out) I have never seen this scene before.jpg Even Academician Lu was stunned for a moment, then smiled and shook his head: "It seems...I''m afraid he didn''t ask someone to write for him, but it was his own idea..." Academician Xu also nodded slightly, and then looked at Chang Haonan on the stage with a playful look: "Our academician Chang, for his age, is really too skilled..." "If you are not skilled, how can you be elected as an academician at this age?" The two looked at each other, but neither of them continued to speak. Compared with most outsiders who can only know the final result, the two of them know all the details of the entire selection process. How many dangers there are there are even more difficult for outsiders to understand. Of course Chang Haonan''s conditions are fine, but the big problem is his age. Especially this year, after the establishment of the Academy of Engineering, the situation of concurrent academicians once again appeared. In this case, it only caused some controversy, and no one really jumped out to object during the review process, which is quite telling. On the one hand, the relationship and strength are strong enough, allowing Station C to come out to support this matter immediately, so that people who want to make small moves have to think twice. On the other hand, it also shows that he can indeed make the cake bigger. Not just individual departments or units, but the entire industry chain of many industries can benefit from it. Such people, even if they share more benefits, will encounter much less resistance... At this time, Chang Haonan had already released a schematic diagram on the curtain: "We have improved an engineering prototype based on the MS45T machining center. Centered on the PLC module of the PMAC card, it simultaneously receives operating information from the I/O port, as well as the processing load, feed rate and alarm obtained by the PLC. Waiting for processing information..." In the adaptive processing mode, the equipment will automatically shield the effect of the mechanical rotary switch, calculate the feed rate at the next moment in real time, automatically modify the register variable that stores the feed rate, and achieve stress relief and control in one clamping. Full-process production including processing compensation After all, a symposium is not an academic seminar. Therefore, Chang Haonan did not really bring a complete report, but only briefly introduced the adaptive processing technology and its current application fields. But even so, the "gift" from Chang Hao''s south end still meets the needs of many people. In particular, the market share of domestic machine tools has increased rapidly in recent years. A large part of the products themselves use the control system developed by Torch Group, and there is a lot of room for follow-up and upgrade. "MS45T...should be a three-axis machining center?" Qu Liangsheng, who is also a newly promoted academician, asked. As an expert in the field of shaft system dynamic balancing, he has presided over the development of online monitoring and fault diagnosis systems for multiple generations of large centrifugal compressors and key equipment gearboxes. Naturally, he is very interested in the new technology mentioned by Chang Haonan. "That''s right." Chang Haonan nodded: In principle, this technology can be adapted to more complex five-axis or even seven-axis five-linkage equipment, but on the one hand, the complex surfaces that need to be processed by these equipments themselves require more complex processing models. On the other hand, each additional line The greater the complexity of the sensor and adaptive algorithm, the more serious the self-interference suffered by the signal acquisition process..." "Of course, we are constantly upgrading our technology to overcome these problems, but considering the time and occasion, we will not go into more specific details here to avoid going off topic..." The scene suddenly erupted into a burst of good-natured laughter. Chang Haonan also took advantage of this opportunity to quickly end his topic. Lu Yongxiang, who also serves as the host, also returned to the stage: "First of all, I would like to thank Comrade Chang Haonan for bringing us this gift. My personal research is mainly on fluid transmission and control theory, and I still feel a little unfinished after listening to it..." This sentence can be regarded as setting the tone for Chang Haonan''s speech just now. After a short pause, he continued: Actually, the orientation symposium didnt have a theme. Its just that over the past many years, it has formed a usual format... I also said at the beginning that this years co-optation is the average since the establishment of the academician system. The age has dropped the most. Since we welcome our younger colleagues, we will also welcome the changes they bring..." "Then, please take a moment to rest. The certificate awarding ceremony will begin soon..." (End of chapter) Chapter 1113 Practice No. 7, determine the track independently Chapter 1113: Practice No. 7 and set the track independently Although it was said to be a short break, for these more than a hundred new academicians, the scene in front of them was no different from the ancient gold list. How could they really sit still. Therefore, after Academician Lu and several other big guys left to prepare for the subsequent certification process, the scene essentially entered a free discussion stage. Those who have known each other in the past should take this opportunity to catch up with each other. Those who don''t know each other will be considered colleagues after all in the future, and they should always get to know each other. After all, even if you only look at the second round, there are three to four hundred people who have the chance to be selected in each session. Unless there are some particularly famous ones, or those who happen to be in the same research direction, it is impossible to be familiar with each other. Many of the names are even unfamiliar. Especially those like Chang Haonan, who is obviously inferior in seniority. Logically speaking, we should take the initiative. After all, even in terms of physical strength, young people should be strolling around more. But most of the time, others know him, but he doesn''t know the other person... As a result, in just ten minutes, dozens of new names appeared in Chang Haonan''s mind. In other words, the memory after rebirth is much better than before. Otherwise, this way of recognizing people is basically like picking off the corn, remembering the new and forgetting the old. It wasn''t until a few old acquaintances appeared that he finally had some free time and could return to his seat to rest for a while. "Academician Song, congratulations!" Chang Haonan stood up as he spoke, and helped Song Wencong, who was walking over, to sit in the vacant seat next to him. After the latter sat down, he waved his hands and said in a low voice: "I understand my situation... This year has been so smooth, thanks to you and Xiao Yang..." In fact, Song Wencong had already started participating in the selection of academicians of the Academy of Sciences as early as when the J-7III was finalized more than ten years ago. However, this model cannot be called a success, and the evaluation of the troops is average, and the follow-up has no follow-up. Naturally, those few selections had little hope. Later, when he was in charge of the research and development of the J-10, he was already relatively old. Especially in the middle and late stages, it is difficult to keep up with physical conditions, and a lot of the work is actually undertaken by deputy chief engineer Yang Wei. As for Chang Haonan... In addition to promoting the J-10 itself, another assistance he provided was actually the establishment of an aviation power group. Since the "outsiders" after the separation have flourished in all directions and even started to get involved in the research and development of complete aircraft, the threat is too great. The aviation industry system showed amazing unity in the two selections in 2001 and 2003. It was also an important reason for Song Wenchong''s successful election. Of course, these are internal family matters and cannot be discussed publicly. So Song Wencong just mentioned it in a vague way, as long as everyone understood it. As for Chang Haonan... He has been downplaying the disputes within the system through various means from the beginning, and it is even more impossible to dwell on this topic at this time: "I don''t know...in what direction will Academician Song continue to develop?" Song Wenchong in his previous life basically entered retirement after the basic version of the J-10 entered service. Even the J-10S was developed under the leadership of Yang Wei. But now that I have put my hat on, I must continue to use my remaining energy. Otherwise, wouldnt all the resources invested in you be wasted? "I am already 73 years old, so why should I talk about development..." Song Wenchong and Chang Haonan are two generations apart in age, and even if they knew each other before, the former doesn''t care much about the scene in private: "It should be a title within a group... As for the specific work, it must be the young people of Xiao Yang''s generation who take the lead..." The two then chatted about some past events. However, the environment at the symposium obviously did not allow Song Wenchong to "occupy" a celebrity like Chang Haonan for a long time. Soon, someone else walked up to the two of them: "Academician Chang, congratulations!" The person had thick short gray hair, very high cheekbones, and distinctive eyebrows that were not high on either side. He seems to be about the same age as Song Wencong, but seems to have more energy. Chang Haonan always felt that he should have seen this person somewhere. But I really couldnt remember it for a while. Fortunately, the other party immediately reported his name: "Meng Zhizhong used to be from the Eighth Aerospace Academy. We had a meeting together at the Aerospace Science and Technology Group before, but we never talked..." "But you should be very familiar with Comrade Guo Liqiang from our unit...I heard him mention you several years ago." In just two or three sentences, the relationship between the two of them was brought closer at the speed of light. Chang Haonan also had some impression at this time. Meng Zhizhong should be the chief engineer of the Fengyun series of meteorological satellites, and an old comrade who has been involved in satellite design since Dongfanghong-1. However, he only thought that the other party came to chat with him, so he still answered in a simple way: "Yes...Mr. Guo and I have cooperated on both the No. 11 and No. 13 bomb projects. We are old acquaintances." Guo Liqiang was the deputy chief engineer who was actually responsible for the research and development tasks of 11. Later, when Chang Haonan developed passive positioning technology, he worked with him to modify a large anti-air/ground-type projectile based on the huge R33 projectile. It has now entered the trial installation stage, and together with the Thunderbolt 11/12, it has become one of the main airborne weapons of the J-10 and J-11. This saves the Chinese Air Force''s pitifully rich air-to-ground weapons arsenal, and allows fighter pilots to finally have a second ground-to-ground subject to practice in addition to their ancestral rockets... Logically speaking, the two of them are considered acquaintances. However, the other party had no intention of leaving at all. Instead, the conversation changed: "I remember... Mr. Chang, after the Qingluan 1 constellation, the next step should be to prepare for communication technology verification on a larger satellite platform?" Upon hearing this question, Chang Haonan was immediately stunned. Then I realized that Academician Meng was probably not just here to chat with me. But there is really something to talk about. Song Wencong next to him also found a reason at this time, got up and left. Although what can be discussed on this occasion will definitely not be anything highly confidential, but after all, he is an irrelevant person, so it is better to avoid it. "really." After bidding farewell to Academician Song, Chang Haonan nodded: "The general situation has been submitted for approval, and the specific allocation should be the Practice 7 satellite group." This matter is not a secret within the Aerospace Technology Group, and the other party''s question is just as a foreshadowing. So there is no need to hide it. "That''s it, Academician Chang... We have a new technology here, and the ground testing is almost complete now, so we want to find a satellite platform to carry it..." Chang Haonan was a little strange when he heard this: "It''s not that I don''t want to... but the Shijian No. 7 series is expected to use the Dongfanghong III platform, which is not particularly large in size. We plan to carry a large number of channels on it, and the mission load is already very tight..." "And Academician Meng, logically speaking, the project you are leading should not require a ride for verification, right?" After entering the 21st century, although China''s rocket launch frequency is still not as good as those of traditional aerospace powers, it is also much richer than in the past. In addition, the model he has on hand appears to be a weather satellite, but in fact it is similar to Ocean One, and it is responsible for part of the testing tasks of military remote sensing technology. Logically speaking, even if the four stars of Fengyun-1 have been launched, he should have the ability to build a separate technology verification star. "Actually, it can''t be counted as the project at hand...and this task, how should I put it..." Meng Zhizhong sighed helplessly: "The payload is very small, and it is still far away from current practical applications, so no matter who comes, they have to find a chance to hitch a ride... But the structure of the satellite still needs to be modified, and there is no way to put it on a functional satellite..." It''s a bit awkward indeed. But Chang Haonan became interested instead: "Tell me more specifically?" "Academician Chang should know Beidou, right?" This question was obviously nonsense, so Meng Zhizhong continued directly without waiting for Chang Haonan to answer: "Chief Engineer Fan Benyaofan hopes that when the complete Beidou system is completed in the future, he will be able to realize it, and at the same time, it will also give other networked satellites the ability to independently determine orbits and calibrate. On the one hand, it will improve their survivability in extremely special times, and on the other hand, it will improve their survivability in extremely special times. On the one hand, it can also relieve the pressure on ground measurement and control stations..." "The Shijian-6 that is about to be launched has only two satellites in each group and cannot form a network by itself, so only the Shijian-7 that you have on your side, Academician Chang, meets the requirements..." Chang Haonan understood now. The so-called "extremely special period" is wartime. Although the technology to physically destroy satellites is not yet mature, there are many ways to interfere with satellite orbits. Being able to determine the trajectory independently can also be regarded as improving the level of countermeasures. It will also be of great benefit to the medium and low orbit communication network he hopes to build. If I want to say support, then I definitely support it. But Practice No. 7 had to satisfy his own requirements first, so he did not answer immediately, but further confirmed: "Our satellite group itself needs to change orbits multiple times, so the fuel of the unified dual-component propulsion system is relatively tight, leaving you with a margin for orbit determination tests... I''m afraid there won''t be much." Seeing that Chang Haonan was not convinced, Meng Zhizhong immediately expressed his stance: "Don''t worry, since we are free riders, we will definitely position ourselves correctly and prioritize our core tasks!" (End of chapter) Chapter 1114 The problem of going to the stars with ion propulsion Chapter 1114 The problem of ion propulsion to reach the star Meng Zhizhong''s attitude was indeed very upright. But having a good attitude does not fundamentally solve the problem. The so-called dual-component propulsion system is essentially a chemical propulsion system that uses liquid methylhydrazine and dinitrogen tetroxide as fuel and oxidant respectively. Speaking more broadly, a rocket engine is essentially a two-component propulsion system. As you can imagine, its characteristics are very obvious The advantage is that the thrust is large enough. Especially for a satellite, orbit change and attitude adjustment can be completed in a very short time. As for the disadvantages The rest are almost all shortcomings. First of all, fuel is limited. In fact, satellite life span depends largely on how long the fuel carried can be used. Secondly, it is conceivable that the stability of chemical combustion is actually difficult to guarantee, even if it becomes a fuel cell, so it is difficult to perform particularly refined control. Moreover, the weight of the fuel itself is not low relative to the size of the satellite, which is almost a complete waste in terms of function. In addition, as fuel is consumed, the center of gravity of the satellite will also change, adding a lot of load to the onboard control system out of thin air. Not to mention that the liquid in the half-full fuel tank will inevitably slosh when the satellite moves later, further affecting the accuracy of the movement... Although people have made many improvements for this, such as the new attitude adjustment algorithm tested by Chang Haonan on Qingluan 2, these drawbacks still cannot be eradicated. Shijian-7, as a communication verification satellite, does not require particularly stringent communication accuracy and orbit change frequency, but this is not consistent with the requirements of independent orbit determination testing... In short, under the premise of ensuring that the mission of Practice No. 7 is carried out normally, there are actually very few opportunities left for Meng Zhizhong and the others to test. The effect is hardly satisfactory. Moreover, the limited number of times must be distributed over the entire life cycle of the satellite, that is, within the next 3-5 years. Although Beidou II has not yet started construction, and there is no rush to put this technology into use, people who often do research will know that this piecemeal testing method is actually not conducive to the normal advancement of the project. After hearing Chang Haonan''s concerns, Meng Zhizhong also expressed his helplessness: "Of course I know this... But let alone right now, even in the past five years, there is no other better option. Other satellites are either clear functional stars that cannot be tested, or they cannot be tested individually or in dual-satellite systems..." "You can''t launch a batch of satellites separately just to test autonomous orbit determination, and it''s just a proof of principle, right?" In fact, in the future commercial aerospace era, not to mention satellites, even rockets can be used for testing. But that''s largely because there''s no psychological pressure to spend investor money, and there''s a higher tolerance for failure and mishaps. The current resources and situation of China Aerospace certainly do not allow this. Therefore, Meng Zhizhong''s caution is not wrong. "Actually, Mr. Chang, you don''t have to worry so much. All operating rights of the satellite, including the equipment, are 100% handed over to you. Mr. Fan and the others only need to obtain some orbit change operation data when conditions are sufficient." In fact, Chang Haonan was already planning to nod at this moment After all, his current main focus still has to be on the large bypass ratio turbofan engine and relay communication links. Other projects can provide some support at most, but it is impossible to take the lead. "That" But, the moment he spoke. He suddenly remembered something he heard when he first came into contact with the Ocean One project two years ago. "Academician Meng, I remember that the Academy of Sciences seemed to be developing an electric propulsion device in the past two years..." Electric propulsion, because it relies less on working fluids and has a relatively simple structure, has almost no disadvantages caused by chemical propulsion, and can produce surprisingly high (four-digit) specific impulses. The only problem is that the thrust is really small. But for satellites, the resistance of the space environment is almost negligible anyway, and a smaller thrust is just a longer working time. Generally speaking, the working life of electric propulsion equipment is generally 10,000 hours, which is definitely much stronger than traditional solutions. If it is an ordinary satellite, the long orbit change time may also bring unnecessary pressure to the ground measurement and control system. However, what the other party wanted to test happened to be autonomous orbit determination technology... It''s a perfect match. In the previous life, China''s electric thrusters did not actually go to the stars until the 2010s, but judging from the actual situation, ground testing actually started very early. If some additional resources can be provided, it should not be a problem to advance the time node a few years. However, Meng Zhizhong seems to understand this better than Chang Haonan: "I know that the LIPS-200 of the Jincheng Institute of Physics, an electron bombardment ion propulsion system, 40mN thrust, 3000s specific impulse, and a lifespan of 12,000 hours, is currently undergoing long-life ground assessment and verification, and it is expected to take about a year... " "Isn''t that just in time?" Chang Haonan patted the armrest of the seat: "Electric propulsion technology, the core technology of future spacecraft, works well with autonomous orbit changes. It can be combined together to launch a group of satellites for testing together." "Although it will take a year or two to wait on the ground, the testing work can be carried out intensively. It is better than taking a ride on Practice 7 and only releasing a set of data every few months or even a year, right?" Meng Zhizhong heard this. He scratched his head and showed a somewhat troubled expression: "LIPS-200 actually has no plans to go to space in the short term..." "ah?" Chang Haonan was also stunned. "The electronic bombardment technology is good compared to other technical routes. The lifespan is a bit low compared to electric propulsion, but it is enough if you don''t engage in deep space exploration... but it consumes too much power." Meng Zhizhong explained: "Not to mention the small satellite platform... The Dongfanghong 3 satellite has a stable power supply capacity of only 1.7kW in low-Earth orbit. Once the LIPS-200 is turned on, the single propulsion power will use about 1.5kW... The remaining 200W, let alone the mission The payload, even the on-board control system cannot be maintained stably..." Chang Haonan knows this data: "What about the maximum power supply?" Chang Haonan now has at most some research on satellite payloads. As for the entire star system, although it is impossible to have a blind eye, he only has a partial understanding. At least certainly not as good as the expert Meng Zhizhong. The latter answered almost without thinking: "2.3kW...but this data is meaningless?" The output of the spaceborne solar power supply has strong nonlinear characteristics. It can be regarded as a constant current source at low voltage, and a constant voltage source at high voltage. Therefore, in addition to being affected by external factors such as light intensity and temperature, the output power It is also closely related to the load output voltage. Only at a certain voltage can the output power reach its maximum. That is 2.3kW. But obviously, in order to achieve this indicator, the conditions are very demanding. The working conditions of onboard equipment are complex and cannot always be so stable. That''s why Meng Zhizhong evaluated it as meaningless. 1.7kW is a range that engineers have calibrated based on the characteristics of the satellite''s electrical load and is "probably achievable". In fact, the space-borne equipment of this era generally has poor performance and is also very large and heavy. Correspondingly, energy consumption is also relatively low - If you really want to pack so much equipment, the size of Dongfanghong 3 will not be able to fit in. Therefore, 1.7kW is enough for general loads, such as Shijian No. 7. It''s just that ion propulsion is indeed a large power consumer on the satellite level, so there is a gap. but It''s not impossible. "Ahem" Chang Haonan cleared his throat: "We have a maximum power point tracking technology in the aviation field, which can adjust the output voltage of the solar power supply in real time according to the load condition, so that it can be maintained relatively stably near the maximum power point." "In fact, it is to modify the main error amplification circuit of the direct energy transmission power supply system and add a D/A converter and corresponding control unit to realize the change of the reference voltage... The price is that the ultimate life of the power supply will be reduced, but in fact, ordinary satellites It is also difficult to work until the power supply is damaged, so the impact may not be that big..." For Meng Zhizhong, this was a complete surprise. It''s like you just had two change in your pocket and wanted to find a place to spend it, so you bought a bottle of beer. As a result, I opened the bottle cap and found that I had won two hundred thousand dollars. For a moment, he didn''t even have time to feel the joy. What came first was curiosity: "To digress...why do you guys need this kind of technology when building airplanes? Doesn''t it have an APU, and the engine itself can provide stable power supply?" Chang Haonan was a little confused by the other party''s thinking. In fact, this was one of the fundamental technologies used in solar-powered long-endurance vehicles twenty years later. But its really not easy to explain right now. So, he had no choice but to say haha: "Isn''t this just because it''s useless for airplanes, so I just remembered it..." Meng Zhizhong''s doubts obviously did not disappear completely. But at this moment, the surprise that I didn''t feel just now has already taken over the dominant mood somewhat unconsciously: "If I really follow what you said, it doesn''t have to be particularly precise. As long as the power can be increased to more than 2.0kW, it will be enough to install the LIPS-200!" Chang Haonan nodded: "Then I can verify the maximum power point tracking technology on Practice No. 7..." (End of chapter) Chapter 1115 Nuclear issues? Chapter 1115: Nuclear issues? For Chang Haonan, compared to directly using the Practical No. 7 satellite constellation and the immature Beidou generation to make do with testing autonomous orbit determination technology, just verifying a maximum power point tracking is obviously just a casual thing, and it is not It requires too much extra effort on his part. Zhang Weiyong and others can still complete it alone. More importantly, the risk is very small and will not affect the mission load of the constellation itself. Meng Zhizhong originally wanted to give a chance to his colleagues who failed to be elected academicians this time. Although it seems that it will take a few years to get promoted, based on the actual situation, the final test efficiency will be higher. Naturally, both parties are happy. It happened to be at this time that Lu Yongxiang, Xu Dikuang and others who had just left also returned to the conference hall. "Comrades." Considering that it was the dean of the Academy of Sciences who was speaking above, it was now the turn of the Academy of Engineering to show their face. As Academician Xu took the stage, the conference hall, which was a little noisy just now, quickly calmed down again. "Preparations for the certificate awarding ceremony have been completed. Comrades, please follow the guidance of the staff and move to the auditorium..." Chang Haonan, who was sitting in the front row, could feel the air behind him almost solidifying at this moment without even looking back. After all, in principle, only after obtaining the certificate can one be considered an academician officially recognized by the organization. Although in practice few people would bother with such details, people still need a sense of ritual. Perhaps because of this, everyone showed quite high enthusiasm. In just a few seconds, a large number of people had already stood up in the entire conference hall. In fact, Chang Haonan also wanted to go out quickly, but he had no choice but to sit in the first row. As a side hall, there was no side door, so he just took a look at the dark situation behind and put his buttocks back down. However, in the eyes of outsiders, this behavior seems to be a sign of a stable mentality. Especially Academician Lu, who had admired Chang Haonan before, even praised him slightly in his heart. "Academician Chang." After thinking for a moment, he went straight to Chang Haonan and sat down again: "After the certificate awarding ceremony is over, don''t leave in a hurry..." "???" In fact, it was not difficult to hear Lu Yongxiang when he was on stage just now. He had a Zhejiang accent when he spoke, so he usually slowed down his speech when communicating with others. But even if he knew this was the case, Chang Haonan almost couldn''t hold his nerves because of the phrase "don''t leave after school", and it took a lot of effort to suppress his smile. "Academician Qu and I would like to discuss some business matters with you. Of course, we would also like to deepen our understanding of each other..." This surname is not very common. Chang Haonan briefly recalled it and only remembered Academician Qu Liangsheng who had asked him a question before. It''s just that these two people have never had any contact with him before. Moreover, one is a dean in the field of mechanical fault diagnosis, and the other is an expert in fluid transmission and control. They seem to have no direct connection with the projects at hand... However, after all, it was the dean of the Academy of Sciences who had spoken, and Chang Haonan still agreed. As a result, when he participated in the certificate awarding ceremony later, he was a little absent-minded out of curiosity. Fortunately, with more than a hundred people, even if they came on stage in batches, the schedule was very tight, so no one noticed this. Compared with the previous symposium, the certificate awarding ceremony was much longer because of the high-level leaders. By the time the ceremony ended and lunch was over, it was already two o''clock in the afternoon. Because Academician Lu didn''t say anything more specific at that time, Chang Haonan had to wait at the door of the Great Hall. But soon, he discovered that the place he chose didn''t seem to be a good one... After saying hello to countless colleagues who were also about to leave, Chang Haonan, who was thirsty and thirsty, finally heard a familiar voice coming from behind: "Academician Chang!" He turned around and saw Qu Liangsheng coming down the stairs not far away. Beside him, there was a staff member supporting his arm The other party is 72 years old, has been working on the front line for many years, and has never been in good health. After walking closer, Qu Liangsheng continued: "Dean Lu was just called away by his superiors. It seemed that he wanted to discuss some policy issues... He said that we should go inside the hospital and wait for a while. He should be there soon." The Academy of Sciences is not only a spontaneous association of high-level scholars, but also the country''s highest-level advisory body in the field of science and technology. As the dean, it is normal for Lu Yongxiang to participate in discussions and even decision-making during some policy formulation processes. "good." Chang Haonan was about to nod, but stopped: "Academy of Science or Academy of Engineering?" This question stunned Qu Liangsheng, who had just stopped. He immediately realized that although Lu Yongxiang was the president of the Academy of Sciences, the three of them together had a total of five academician titles. If we really want to talk about a common identity, it would be in the Academy of Engineering... "I forgot that you are also an academician on both sides..." Qu Liangsheng shook his head helplessly, and then said in a half-joking tone: "Now, I have become the laggard..." Chang Haonan stepped forward and prepared to lift up the other side of Qu Liangsheng''s body: "It''s just that the division of labor is different. There''s no way to say that you can''t hold back..." But the latter broke free together with the staff next to him: "Okay, okay, Xiao Liu, just go and drive first. I''m not old enough to walk on the road... Being held up like this by the two of you makes people think that the old man made some mistake and was taken away..." After finishing speaking, he adjusted the tie around his neck and continued: "Dean Lu didn''t say anything just now, but there will be a car leading the way, so we just need to follow..." From the City Hall to No. 52 Sanlihe Road, you dont even have to turn. Go west along Chang''an Street and Fuxingmennei Street and you''ll arrive. The total distance is only about two kilometers. Therefore, not long after, Chang Haonan and Qu Liangsheng were already sitting in a conference room of the Academy of Sciences. And as he said, Lu Yongxiang didn''t let them wait too long, and quickly rushed back after a long journey. "I''m really sorry...I took the initiative to meet, but ended up leaving you two here..." He apologized to the two of them while taking off his coat. Of course, no one could really blame him for this little thing. So the three of them quickly got to the point. "Academician Chang, during the academician selection stage, I have seen the materials you submitted...one of them said that you have already applied electromagnetic bearing technology in actual projects?" Lu Yongxiang got straight to the point. At this moment, Chang Haonan understood a little bit. Electromagnetic bearings are necessary supporting components in ultra-high-speed rotating machinery in the future, and the fluid transmission field that the other party focuses on needs this type of equipment. "Yes, we have applied research in this area." He replied: "However, in terms of specific projects, it is currently only used on a jointly developed foreign engine, and there is still a mechanical backup, mainly used to collect user data, so it has not been used on our own models." "So that''s it..." Although Lu Yongxiang''s tone was calm, judging from his expression, Chang Haonan''s answer surprised him a bit: "I wonder if it would be convenient for Academician Chang to reveal how you solve the rotor life problem caused by excessive load during ultra-high-speed rotation?" The research on electromagnetic bearings itself is actually relatively mature. But this is still an accessory. Bearings can support tens of thousands or even hundreds of thousands of rotational speeds per minute, but it does not mean that equipment with bearing loads can also support it. In particular, electromagnetic bearings have no rigid contact, so fundamentally there must be more serious gyroscopic effects and vibration interference. Moreover, at ultra-high speeds, the rotor needs to pass through multiple critical zones within the operating speed range, and the control logic is more complicated than traditional bearings. complex. No wonder Academician Lu is so eager. However, Chang Haonan smiled bitterly and shook his head: "It''s not an inconvenience because we haven''t solved it at all..." "Um?" "ah?" The two academicians opposite were shocked at the same time: "Then how did you pass the life and reliability tests..." Upon seeing this, Chang Haonan quickly explained: "We chose electromagnetic bearings just to provide part of the power and reduce the number of parts..." "So, SeA650 actually only has the No. 1 fulcrum, which is the outermost fan that uses electromagnetic bearings... Academician Lu should know something about this. The speed of the fan is much lower than that of the compressor and turbine, generally only a few thousand revolutions per minute. , it may be even lower during cruising, so there is no radial load pressure..." Upon hearing this answer, Lu Yongxiang and Qu Liangsheng''s eyes dimmed for a moment. However, it soon returned to its original state. After all, they are all academician-level bosses, and it is impossible to just rely on others to feed them. "This is the case." This time, it was Qu Liangsheng who spoke: "Dean Lu and I are currently studying the electromagnetic bearing-flexible rotor system that is used for ultra-high-speed rotating equipment. However, the software and hardware foundation in Jincheng is relatively poor... If we build it from scratch, it will consume immeasurable money. Funds and time, so I was wondering if I could cooperate with you, Academician Chang, and by the way, I could also make use of your groups existing experience and testing platform..." Chang Haonan was very familiar with this kind of operation. However, it was usually initiated from his side before. "Ultra-high-speed rotors... If we plan to fully use electromagnetic bearings on the new generation of aircraft engines in the future, there will indeed be a demand..." After thinking for a moment, he slowly said: "But I want to know, in what areas was this research that you two were originally intended to be applied to?" Lu Yongxiang and Qu Liangsheng looked at each other. "Ultra-fast centrifuge...or to put it more directly, it extracts high-concentration nuclear fuel!" (End of chapter) Chapter 1116 Big black fish? Chapter 1116 Big... **** fish? Chang Haonan never imagined that one day he would be so shocked by others that he could not even hold a cup steady. Fortunately, I had already drank more than half of the tea inside, so I didn''t get wet from it Chang Haonan had heard in his previous life that China did rely on imported equipment for a period of time in its fifth and sixth generation centrifuges. Therefore, I am not too surprised about the research on advanced uranium enrichment equipment. However, with the development of nuclear energy technology in the 21st century, the concentration requirements for nuclear fuel have actually become very relaxed. Due to cost, safety and environmental protection considerations, the average abundance of fuel rods used in nuclear power plants is generally between 2% and 5%. Even if it is higher, it will basically not exceed 10%. It definitely has nothing to do with "high concentration". Generally, only weapons-grade enriched uranium can reach 90%, or even more than 95%. But as we all know, after China conducted its last nuclear test on July 29, 1996, the development and construction of its nuclear forces entered a relatively stable stage for a long time. To put it bluntly, the size of the nuclear arsenal has not increased much. On the one hand, the construction and maintenance costs of this thing are indeed too high. Limited military expenditures also require the development of conventional forces with more general uses. On the other hand, China will only have a few dozen Dongfeng 5A missiles that can hit the main areas of the powerful enemy''s homeland. Not to mention the single warhead, the accuracy is also very poor. As for the rest The basic Dongfeng 31 is strictly a long-range projectile and can only hit a few targets. Julang 1 is essentially close to Dongfeng 21, with a range of less than 3,000 kilometers, and the performance of the 09II nuclear submarine is not enough to break through the island chain and enter the launch position, so it can only be regarded as solving the problem... The several Tu-160s that were brought back before have a far enough range, but the Air Force''s nuclear-related positions have just begun training and construction, and they have not had time to form combat effectiveness. Moreover, the survivability of non-stealth aircraft... In short, the nuclear delivery capability is extremely limited. And the next real expansion! nuclear! That was all before Chang Haonan was reborn. Furthermore, people generally dont call the raw materials used in nuclear bombs nuclear fuel. Therefore, he even confirmed it again: "Nuclear fuel?" "Still a high concentration?" Facing Chang Haonan''s reaction, the two people opposite were not surprised. Obviously, he was not the first person to show such surprise. "That''s right." Qu Liangsheng nodded: "Of course, the entire plan is still in a very early stage...it''s not even pre-research. The new centrifuge we developed is just a pilot part of it." At this moment, Chang Haonan seemed to have turned a corner. "So it''s..." He did not continue speaking, but simply stretched out his hand and made a slowly downward gesture. There is almost only one situation where a nuclear reactor will use weapons-grade fuel. It''s a nuclear submarine. Compared with nuclear-powered surface ships that can easily weigh tens of thousands of tons, the design of nuclear submarines is obviously much more compact, and it is impossible to reserve enough space for refueling operations. Therefore, if the low-concentration reactor used by early nuclear submarines such as the Ohio or Delta needs to be refueled, it must undergo a large-scale "disembowelment" Not only is the cost high and time-consuming, but the key point is that it will inevitably strain the muscles and bones, which is detrimental to the safety of the operators and the submarine itself. Therefore, some new models of nuclear submarines simply consider having the reactor and the boat have the same lifespan when designing them, so that they do not need to do it twice during their entire service life. The trade-off is the use of more abundant uranium fuel. It stands to reason that this is a technology that will only be widely deployed on fourth-generation nuclear submarines such as Virginia/Borey. In 2003, China''s 09I and 09II are actually between the first and second generations of technology. But we started laying out the most cutting-edge technology so early. But then I thought about it, if I compare it with the aviation industry system, it seems very reasonable - China''s pre-research on fourth-generation fighter jets is actually being prepared before the third-generation fighter jets enter service. Of course, there is a factor in the rapid progress because the starting point is very low, and one can cross the river by feeling for stones, but there is no doubt about the foresight and determination shown by the superiors. "Ahem" Qu Liangsheng cleared his throat: "It should be said...including but not limited to..." At this time, Academician Lu, who had not spoken for a while, continued to explain: "Academician Chang, you don''t need to pay too much attention to this. The new generation of centrifuges is indeed mainly developed for this purpose...but there are already too many twists and turns in the process. It is not directly related to the three of us, nor is it It will affect your job due to confidentiality." Although everyone''s business is somewhat confidential after reaching the level of academician, nuclear-related business is still at a completely different level in the final analysis. That''s really secluded from the world. So Lu Yongxiang should think that Chang Haonan is worried about this: "As far as the electromagnetic bearing-flexible rotor system itself is concerned, it is still an open project. It has many uses and is not limited to the military field... For example, in 1992, the rotor of No. 6 unit of Shaoguan Power Plant appeared The discovery of a large number of cracks..." However, Chang Haonan was just curious and surprised. In fact, it was not as complicated as he thought, so he just waved his hand to express his understanding. "So... where is this research now?" In fact, he was basically ready to agree. But before that, we have to understand the situation again. "There are several key points that are currently being researched. One is the design of the electromagnetic bearing controller... Of course, Academician Chang, you may have already achieved some results. The second is the mathematical model and dynamic characteristics analysis of the cracked rotor system. The third is the multiple critical aspects of the flexible rotor. Co-frequency vibration suppression in the speed range. Qu Liangsheng replied: "However...except for the first item, the next two parts only require some equipment support and will not have an impact on the projects you are currently working on..." He obviously followed the general idea of ??"asking people to cooperate". First of all, he said that he would not delay the other party''s normal work, but only provided as much help as he could. But Chang Haonan doesnt think so: "No!" He just slapped his thigh, and his fierce reaction shocked the other two people: "We definitely hope to get more involved in such a significant project, so that it can be applied to a new generation of aviation engines and gas turbines in the future... Besides, there are some parts that I am good at..." "For example, what Academician Qu just said about co-frequency vibration suppression, I think we can build a dynamic model of the electromagnetic bearing-flexible rotor system, analyze the linear active disturbance rejection controller and the phase offset least mean square algorithm, and then think about it. Find a way to solve the problem by finding a disturbance tracking compensation method based on the minimum mean square of phase offset..." If it were left to ordinary technicians, this might not be able to keep up with Chang Haonan''s ideas. But after all, the two people opposite are also experienced bosses, so they can naturally judge that what he said is indeed feasible. In fact, this is one of the solutions they are trying. Therefore, Lu Yongxiang, who had a solemn expression just now, waiting for Chang Haonan''s response, finally smiled: "Look, Academician Chang, when will we hold a more formal technical seminar for the project team?" Chang Haonan glanced at the perpetual calendar hanging next to him: "Without further ado...I will return to Haojing in two days. It just so happens that the main research resources of the Aerodynamics Group are currently concentrated in Haojing and Shengjing, so if you two have time, how about next Monday? ? (End of chapter) Chapter 1117 Gathering of big guys! Chapter 1117 Big bosses gathered together! Although I had long heard about Chang Haonan''s vigorous and resolute work habits, now that I have experienced it personally, it still surprised the two elders opposite. Especially Lu Yongxiang, who was stunned for a moment before replying: "It doesn''t matter from my side... The work at the end of the year is basically over, so I can walk away." "But Academician Chang, are you sure you don''t need to stay in the capital for a while?" As someone who has been there, he knows very well that after the results of the co-optation of academicians are finalized, many things will begin. The unit, the local area, and even the academicians place of origin As long as there is some connection, Gao Luo will have to go through a formality. Academicians are also human beings. And human beings are the sum total of all social relations. Its impossible to turn down all these invitations. Old people like Song Wenchong and Qu Liangsheng still have a way to escape from illness, but Chang Haonan is a man who looks young and powerful at a glance, and he doesn''t even have such an excuse. Therefore, at least for the first month, it will be difficult to return to a normal work rhythm. In particular, Chang Haonan''s registered workplaces at the two institutes, namely Aerospace Power Group and Beijing Hangzhou University, are still in the capital. Generally speaking, there should be more trouble. Chang Haonan waved his hand directly: "Need not" "What needs to be said has been said in the past two years... The last batch of graduate students who have listened to my lectures have not graduated yet... Furthermore, I left Haojing in early October and arrived at Its been two months now, and I can only learn about the project status through reports, which makes me a little bit uneasy. Lu Yongxiang was also happy when he heard this: "That''s true... when you first won the Philippines Award two years ago, the popularity was much higher than it is now." "At that time, the Department of Mathematical Physics reported to me that they were going to ask you to come and give a report to the academicians... But later I heard that there were too many people inviting you, so we co-organized one with Yanda and Qinghua University. field." Although the honors on both sides are not in the same evaluation system, there are still about a hundred more academician titles in each selection, and the average number of Philippine Award winners is only one per year. After all, the latter is rarer. Moreover, he is the first native Chinese scholar. After briefly deviating from the topic, the two turned their attention to Qu Liangsheng opposite. In fact, Chang Haonan had an impression that the latter originally held the title of professor at Haojing Jiaotong University. However, the actual work location may not be directly related to this. Just like Lu Yongxiang is still a professor at Zhejiang University, but he has basically stayed in the capital these years. "It''s even better on my side." Qu Liangsheng took off his reading glasses, wiped them gently and said with a smile: "Although I have often traveled to Jincheng and Haiyan over the years, my base has remained in Haojing and I have never moved..." "Speaking of which, when we get there, I should actually be the real host... then I have to be given the opportunity to fulfill my duties as a landlord." Since all three people had no objections, Lu Yongxiang finally set the tone: "Then it''s settled, next Monday, at Haofa Group!" Although he said that he didn''t need to stay in the capital, the school and the headquarters did still have some things to deal with. Just like over there at the Torch Laboratory If the leader evaluates the academician, then there must be some benefit to the people who follow him, right? So Chang Haonan gave everyone a few extra days of leave before New Year''s Day and gave them an extra subsidy, which he regarded as a bonus. Although the group level cannot directly distribute money for this reason, after all, two (three new) academicians have been added within a year, and some real benefits must be provided to increase the morale of the employees below. In the field of aviation development, we often have to work hard day and night to solve key problems. We can''t just make the pie bigger and let comrades work hard, right? In short, by the time he actually returned to Haojing, it was already Saturday afternoon five days later. In order to express their attention, the Qin Provincial Reception Office even specifically contacted the Aviation Power Group and said that it could directly send people and vehicles to the airport to greet them. Considering that academicians are directly benchmarked against deputy ministerial leaders in terms of remuneration, this is not an unusual process. But... Due to his special status, Chang Haonan was always sent directly to Yanliang Airport by a special plane. There was no way to get in at the local reception office. So in the end I had to let it go. Of course, not surprisingly. At the entrance of Haofa Group, Chang Haonan could still see the banners held in the distance and the crowd lined up to greet them. Fortunately, it''s not too big. I guess there are about thirty or forty people there. It should be the leaders of various offices in the agency. The two leaders were Ren Bingda and Zhang Zhenhua. Chang Haonan doesn''t like ostentation, but he also knows that this kind of process cannot be avoided at all. If you really reject it completely, it will seem a bit unhuman. So after getting off the bus, I celebrated lively with everyone, and then took a group photo before sending everyone back. Only then did Zhang Zhenhua find Chang Haonan alone. While following the latter to the design room, he reported the situation in detail: "Mr. Chang, after our comrades worked overtime to make progress, we have now completed the trial production of the first batch of fan blade samples. After testing, three of them were confirmed to be qualified... Do you think we will start testing the balance characteristics and fatigue characteristics immediately?" The aerodynamic characteristics of fans can be tested in wind tunnels in the early stages using scale models or wooden models. But the performance in terms of structure and lifespan must be as good as the original. After all, the truss-type hollow structure is already considered the latest second-generation product even among hollow blades. Compared with the honeycomb hollow structure, there is less known data and the design risk is higher. And in the current situation where it takes only two months to produce 2-3 qualified samples, the latter two items naturally have to be given priority. "Can" Chang Haonan was about to agree, but suddenly he had a better idea: "In this way... let the comrades of the project team rest first, then recharge their batteries, and then officially start the test the day after tomorrow." Such instructions are rarely heard from Chang Haonan''s mouth. So much so that Zhang Zhenhua staggered with his left foot and almost fell to the ground: "ah?" Although the test cannot begin until Chang Haonan signs off, he actually had someone go to debug the equipment and install the blades to be tested last night. As a result...it seems that I couldn''t guess what the leader meant. Chang Haonan only thought that the other party was simply surprised, so he explained: "That''s right. This time in Beijing, I contacted two groups of technical personnel to participate in our project development work. They will send representatives to visit here next Monday... If the test is started in advance, it will be suspended by then. On the contrary Its inconvenient, its better to wait one more day before starting. Zhang Zhenhua breathed a sigh of relief. At this moment, Ren Bingda, who had been silent just now, suddenly spoke: "Then Mr. Chang, do you want to prepare for the reception?" He is responsible for all these tasks. "This is definitely needed." Chang Haonan nodded: "The ostentation should not be too big, but the specifications must still be guaranteed. After all, the team is led by Academician Lu Yongxiang and Academician Qu Liangsheng..." "ah?" Ren Bingda and Zhang Zhenhua looked at each other and saw obvious surprise in each other''s eyes. On the one hand, the requirement of "requiring specifications but not ostentation" is indeed a bit divisive. on the other hand Why does the project team''s formation suddenly seem to be different from before? Three academicians gathered together to work on a project. How could this blessing be so small? There is really nothing to say about Ren Bingda''s work ability. It only took one day to meet Chang Haonan''s request to compete with the "colorful black", and completed the reception task in a low-key and graceful manner. Although it is a seminar, it is an engineering project after all, and it is impossible for a group of people to just sit in a conference room and talk about it on paper. Therefore, as usual, Chang Haonan first arranged a round of visits. The most important thing is naturally the dynamic characteristics testing equipment. Horizontal high-speed rotation tester. When everyone came to the test workshop, the three qualified blades that had passed the test had been installed on it, and the staff were busy making final calibrations. Although the other two academicians are not professionals in aviation, they are by no means outsiders and are no strangers to impeller equipment. However, the three samples in front of me seemed a little different. "Wide chord, swept back, no shoulder structure..." Academician Lu pushed up his glasses: "I remember seeing a similar design in a British technical document before. I didn''t expect our country to follow it so quickly?" Although the focus of Chang Haonan''s presentation is not the blade itself, he must still be happy when he hears others praise him so: "This type of wide-chord fan blade was indeed the first to be put into use by Rolls-Royce...Of course, frankly speaking, we did draw on some experience from the British, but overall, this is still completely organized and developed by our own technical strength. Produced. Qu Liangsheng was more concerned about the test equipment itself. As soon as he entered the door, he ran to the nameplate and stared at it for a long time: "This equipment has plenty of spare capacity for the speed increaser and motor..." "Oh! This vibration analyzer is made by Schenck..." "Then as long as the acceleration sensor and eddy current displacement sensor can be upgraded, it will meet the requirements..." It was clear that he was completely immersed in it. And Lu Yongxiang, who was a little off topic just now, also took two steps forward: "There is indeed no problem with the test equipment, but the speed of more than 100,000 rpm is a test for the design and manufacturing level of our rotors... If the unbalanced vibration problem is really not controlled, the associated losses will be huge..." The so-called unbalanced vibration is the vibration of the rotor caused by eccentric centrifugal force. As for the power... If a laboratory centrifuge with a speed of 10,000 rpm and a centrifuge tube weighing tens of grams is not fully balanced, it is enough to make an unlucky graduate student see too much milk. One hundred thousand revolutions, still with a kilogram-level rotor. Not to mention dry-crushing the entire workshop, destroying the entire equipment is not a big problem anyway. This sentence actually pulled Qu Liangsheng out of his own world: "On this point, I will do my best to ensure the balance of the rotor..." The person with the best mentality is Chang Haonan: "You two don''t have to be under such great psychological pressure... Although we have not actually tested it above 100,000 rpm, in the aviation engine industry, turbine tests of tens of thousands of rpm are still very common." "As you know, for this type of mass-produced product, it is impossible to guarantee 100% balance. So I specially added an unbalance compensation module to the electromagnetic bearing control system, which is based on the position of the unbalanced mass, or the unbalanced mass. The direction of the balancing force is calculated to compensate for the current, and then applied to the electromagnetic bearing, which can offset part of the unbalanced vibration..." Listening to his description, Lu Yongxiang and Qu Liangsheng gradually showed expressions of surprise and joy... (End of chapter) Chapter 1118 Give me a week! Chapter 1118 Give me a week! Technology is indeed good technology. But its not like you can just sit back and relax. The greatest significance of this thing is to serve as a guarantee to prevent serious consequences of going out of control after the experiment fails. Considering the non-rigid connection characteristics of electromagnetic bearings, once this function is triggered, it is equivalent to invalidating the entire experimental data. Therefore, it does not actually prevent the experiment from failing. More importantly, the vibration characteristics of the flexible rotor are essentially different from those of the rigid rotor, so it is impossible to put them on directly. At least the entire control system needs to be overhauled. Soon, a young graduate student accompanying the team spoke to Chang Haonan: "Academician Chang, I just took a closer look and it seems that I didn''t see the imbalance compensation module you mentioned on this set of equipment?" Upon hearing this question, the happy expression on Qu Liangsheng''s face suddenly became a little stiff. This student is very observant, but it would be great if his brain could be as easy to use as eyes... Because of Chang Haonan''s age, even if he deliberately dresses up to be mature, he looks like a normal old blogger at first glance. Therefore, it is easy to give people the illusion that "we seem to be almost the same". But he is a serious boss after all, so you should think carefully before you ask! Fortunately, Chang Haonan himself didn''t care much about this and just explained to the other party: "The principle of unbalance compensation is to calculate the compensation current based on the direction of the unbalanced force, so the control principle needs to be adjusted according to the specific operating conditions. There is a cost... and the test we are about to conduct is to confirm The balance of the fan blades and the speed are not high, of course there is no need to..." "But if you really want to drive this equipment to 100,000 rpm... it would be better to make some preparations in advance." In order to prevent his students from asking any weird questions again, Qu Liangsheng quickly picked up the topic: "Academician Chang, this time I just brought over the analysis results of the unbalanced dynamic response of the flexible rotor by the research team in the past two years. It should be able to provide some help in further improving this equipment." Since he can be elected as an academician, he naturally has some abilities. He cannot wait for others to solve everything. Especially in some basic level theoretical research and underlying data accumulation, Qu Liangsheng is confident that no one can surpass him in this aspect at least in China. While talking, several technicians nearby had completed all preparations before the test, began to close the protective cover, and reminded irrelevant personnel to retreat outside the safety line. Next, with a whine of high-speed rotation, the test officially began. Through the thick and narrow glass observation window on the protective cover, everyone can even see the fan blades rotating at high speed. Soon, the rotation speed reached 10% of the preset value, and the vibration amplitude-speed percentage image on the monitor next to it also began to record dense data points. "We are still conducting rigid tests, so the vibration situation is relatively simple. There is only one obvious resonance peak, and correspondingly there is only one speed critical point..." Chang Haonan got closer to Qu Liangsheng and Lu Yongxiang and raised his voice at the same time. However, compared to the data itself on the screen, the two seemed to be more interested in the testing method. They stared at the rapidly jumping log file in the lower right corner for a long time. "How did you extract the vibration components of the same frequency?" Academician Lu turned around and asked. This question cannot be explained clearly in one or two sentences. Especially since the venue was too noisy, it was not a good place for discussion. Moreover, Chang Haonan originally thought that the visit should be almost done, but now he just took advantage of the situation and suggested: "The conference room is next door, why don''t we go there now?" Twenty minutes later. The group of people sat on both sides of the conference table, listening to a researcher behind the podium introducing the research results Academician Qu is 70 years old, so it is naturally impossible for him to stand there in person for half an hour. "After considering the deformation of the shaft, the flexible rotor will become a complex system with infinite degrees of freedom. Its dynamic model should be described by a system of partial differential equations. The complexity increases significantly, and in most cases it is impossible to find an analytical solution. Therefore, we will only discuss the more typical example for the time being, that is, the disc-type flexible rotor..." "..." The so-called flexible rotor does not mean to make the rotor soft intentionally, but a physical model that is closer to the real situation. Similar to the relationship between Newton''s traditional mechanics and the theory of relativity in describing motion - For most rotating bodies, their operating speed is much lower than their first-order critical speed, and the deflection deformation caused by the unbalanced force is very small. They can be regarded as a rigid body during the research process, and the design and manufacturing are relatively difficult. Small, only the force balance method or the influence coefficient method is needed to achieve dynamic balance compensation. However, if the spanwise size of the propaganda body is large and the rotation speed is very fast, then it will undergo deflection deformation that cannot be ignored during the rotation process. Correspondingly, factors such as moment of inertia, gyroscopic effect, and internal damping can no longer be considered. has been ignored, so the issues that need to be considered during design are also much more complex. If all the above effects are included in the calculation, the coefficient matrix in the motion equation will be so large that it is difficult to estimate, and it will be difficult to perform numerical calculations even in the limited future. Qu Liangsheng''s research is to use some rules to reasonably simplify this process and reduce the computational difficulty as much as possible while ensuring the necessary accuracy. In fact, he has achieved pretty good results. At least the numerical simulation model of the steady-state and transient unbalance response of the rotor system has been successfully established. After the introduction of the young researcher on the stage came to an end, Qu Liangsheng took up the topic and continued: "Currently our progress is mainly stuck on data extraction technology." "Comrade Xiao Han has just said that there is a linear relationship between the unbalanced amount and the same-frequency vibration component of the rotor. This should be very simple, but due to the influence of the bearings, structure, and external environment supporting the rotor, the unbalanced rotor In addition to the same-frequency vibration components, a large part of the actual shaft vibration signal generated by rotation is noise. "What''s even more troublesome is that if the imbalance of the rotor is too large, the equipment will not be able to bear it. But if the imbalance is too small, the signal-to-noise ratio will be very low, and almost all detected signals will be interference signals...and the speed of the rotor will It is not completely constant, causing the frequency of the vibration signal of the rotating shaft caused by unbalanced centrifugal force to change with the change of rotation speed, further affecting the accuracy..." "In short, this process requires a lot of testing to complete. Due to hardware constraints, I have never been able to find a particularly appropriate balance between the two... If the conditions here allow for Academician Chang, I still hope to restart the testing quickly. At least determine the research methods..." This is also a common problem faced by many Chinese scientific researchers in this era, especially engineering researchers. I clearly know what to do next, but I just cant do it. When Chang Haonan was reborn, he often faced the same situation. Therefore, he has some unique insights: "The sharpening of the sword will not waste the time of chopping wood. I would suggest... that you can wait for a while." Chang Haonan raised his head and turned his computer 180 towards the opposite side: "When we were testing the SeA650 engine before, we cooperated with the French to develop a simulated narrow-band tracking filter technology... The basic principle is also very simple, which is to use the equivalent resistance of the switch and the capacitor, and then obtain the filter transfer function. Frequency response function "For example, in the case in my picture, the specific result is..." As he spoke, he rolled the mouse wheel again, and then an expression that filled the entire page appeared on the screen: "In short, when the filter capacitance value is constant, its quality factor, gain and frequency ratio are also fixed. By adjusting the switching pulse frequency, the center frequency of the bandpass filter can be easily changed." Although Chang Haonan''s explanation is relatively simple, it is obvious that the calculation process hidden behind it is still a bit complicated. More importantly, it requires fairly high-quality semiconductor components and very rich design experience. I''m afraid it won''t be solved in the short term. "Why don''t we do both?" As a researcher with a theoretical background, Academician Lu also feels that Chang Haonan''s method is more elegant and can save about two-thirds of the unnecessary testing process. This is a huge benefit for the project cycle and cost. The only problem is suitability. "Let''s do this..." Chang Haonan briefly estimated the difficulty: "Give me a week to try it. If it doesn''t work, it''s not too late to try both ways. How about it?" (End of chapter) Chapter 1119 Tenders from big dog owners (counting yesterday’s) Chapter 1119 Tender from a big dog (counting yesterday) Just when Chang Haonan was focused on the development of the AE1500 engine and flexible rotors. Also in Ho Kyung. Yanliang Airport. Including Liang Shaoxiu, about twenty or thirty people lined up on the tarmac and looked towards the eastern sky. Obviously waiting for something. Soon, a small, small plane appeared on the skyline and slowly descended against the setting sun. A few minutes later, the aircraft''s rear wheels touched the ground lightly, accompanied by a short and sharp friction sound, leaving a black rubber mark on the surface of the newly repaired runway. It was only then that most people finally saw clearly the appearance of the plane in front of them. From the layout point of view, it is somewhat similar to the Challenger 601 that Mr. Chang often rides on. But the slender posture is obviously much more graceful than the latter. Of course, the size is also much larger. Even at first glance, it looks not much different from the C808 regional passenger aircraft that Haofei Group participated in manufacturing. While the plane was still taxiing on the runway, someone whispered into the ear of Liang Shaoxiu in the front row: "Mr. Liang, is this the aircraft we want to modify?" "right." The latter nodded: "Mr. Chang...well, the model that Academician Chang and the others jointly built with Dassault Group, I think the data is that it can fly levelly to Mach 0.92 under certain circumstances, and has a range of 12,000 kilometers..." As a civilian aircraft that has been put into limited commercial operations, the Falcon 8Z''s data has been publicized all over the world. However, these large and unreasonable parameters are of little significance for platform transformation work. As for the real core airframe and wing core-related parameters, not to mention the Haofei Group, even the Aerospace Power Group that participated in the research and development has never obtained a complete version before. But now, considering the progress of the research and development of early warning aircraft, the French are obviously no longer able to sit still - Dont underestimate this business jet with a take-off weight of less than 40 tons. This is an area that China has never touched before. Although the take-off weight of the Falcon 8Z is not much greater than that of a fully fueled and fully loaded J-11B or J-H-7A, the overall design and manufacturing requirements of passenger aircraft and fighter jets are very different. For example, in the original timeline, many foreign companies and institutions participated in the design process of ARJ21. Now, although with the help of C808 and C909, Huaxia has mastered the manufacturing of basic trunk line and large regional aircraft in advance, after all, it still uses other people''s ready-made designs, and Hufei''s research and development capabilities are not enough. I only know how to make it, but I dont know why it is made this way. Therefore, the information provided by the French is still of considerable significance. Just as everyone was whispering, the plane painted with the livery of China International Airlines had followed the guidance and stopped at the aircraft seat not far from them. The tractor that had been prepared quickly drove over, and several staff members jumped down from it and connected the tow bar to the nose landing gear. After the people on board get off, they need to transfer the aircraft to the prearranged assembly workshop as quickly as possible. Right next to the Air Police 2000 that is still under testing. Soon, the plane door opened downwards. But the first person to come out of it turned out to be a Chinese face. Immediately afterwards, there was the joint delegation of Dassault and Thales led by Didier Casore. As a jointly developed product, the latter two will also participate in the improvement of the prototype throughout the entire process of Haofei Group. It was Liang Shaoxiu who recognized the Chinese man first: "General Master Liu?" He stepped forward and shook hands with the other person. The French took the opportunity to hand over the responsibility to the comrades in the reception department. "Why did you go there in person?" Liu Yongquan smiled helplessly: "Hey...this plane has a special origin. I have to come over in person to hand it over to you. There are also several ceremonies that require me to participate as a representative..." Hearing this, Liang Shaoxiu noticed the painting on the plane again: "Speaking of which, why does this plane look like it belongs to Air China?" The former waved his hand, came closer and lowered his voice: "Actually, it has nothing to do with Air China... There is an idea to update a batch of small and medium-sized business jets for the special aircraft unit. This one was delivered to us by Dassault for preliminary trial operation. It just has a CA registration number. But because of you guys I was in a hurry, so I had no choice but to pull it over temporarily..." Since China has not had its own passenger aircraft for a long time, the construction of China''s special aircraft unit has also gone through twists and turns. Until a few years ago, the two special aircraft groups of the 34th Division relied on the old Boeing 737-200, Tu154M and Challenger 601. As for the travel of high-level leaders, Boeing 747s are directly temporarily transferred from Air China for modification. It''s not that I haven''t thought about having a dedicated Air Force One. It''s really hard to do anything. It was not until this year that some of the Tu 154M equipment of the 34th Division began to be replaced by C909. As for the 737-200, which has relatively high reliability, it will continue to use its remaining heat. It is estimated that the domestic model will not be completely replaced until its attendance rate is verified. Now that there is finally a jointly developed business jet, it is obviously time to replace those Challenger 601s that are more than 20 years old. But now it seems that the demand in this area is obviously not as urgent as that of early warning aircraft. So I can only give way temporarily. Just as the two of them were talking to each other, Kasore came up from a short distance away. There was even a sentence in Chinese: "Mud trenches!" This sound almost caused Liang Shaoxiu to freeze up, and it took almost a second for him to react: "Hello, Mr. Casore, welcome to China again." Considering that the other party''s Chinese proficiency was obviously improvised, he still chose to communicate in English. Casore went directly to the topic very bluntly: "We have brought the prototype this time, as well as all the information you need. In addition, a group of Thales Group technicians are preparing to leave. They will arrive in China in early January... I don''t know when we can start the platform. Modification work? "ah?" Liang Shaoxiu never expected that one day, the French would be more motivated to work than himself. And its early January but its still the Christmas holiday. French people traveling for business during the Christmas holidays? Those who dont know may think which country has invaded Paris again "Mr. Casore, I know you are in a hurry, but please don''t be in a hurry..." "We need to first understand the entire design of this aircraft, and then coordinate with the comrades at the Electronic Technology Group before we can arrange a specific modification plan..." But before he finished speaking, he was interrupted by Casore: "Don''t worry, we will fully assist you!" Having said this, he lowered his voice again and added mysteriously: "Liang, we have received accurate information that the UAE may open a tender to the world for a lightweight tactical early warning aircraft next year..." At this moment, Liang Shaoxiu suddenly realized. It seems that something is coming, and I know I am anxious. But he still has the Air Police 2000 test mission on hand, so he doesnt seem to be able to spare much energy... Especially if you are going to bid next year, there is a high probability that you will have to go there with paper information. Seeing Liang Shaoxiu''s hesitant expression, Kasolei continued: "At present, in addition to us, there are also two teams composed of Ericsson and Bombardier, as well as Elta and Gulfstream..." (End of chapter) Chapter 1120 Revenge for the Ring Project Chapter 1120 Revenge for the Ring Project Originally, Liang Shaoxiuquan just listened to Casore''s words as a background story. After all, the export model can never be more important than the self-use model. Even if the other party tells the truth, he will definitely have to focus on Air Police 2000. However, after listening to the other party''s words, he immediately completely threw his previous thoughts behind - Liang Shaoxiu didn''t care too much about what happened to Ericsson. After all, the relationship between China and Sweden is purely commercial competition. Just like last time in Siam, and later in South America. Even if there is a victory or defeat, it is still a matter of business. But Elta Or bidding for early warning aircraft? Sorry, this involves personal grudges. Although the hole dug in the ring project did not really reach Huaxia because of Chang Haonan. But it won''t go away so easily. Regardless of which company the Middle Eastern oil guys will choose in the end, as long as someone competes with David, our Haofei Group will definitely help! Of course, thinking to himself, on the surface, Liang Shaoxiu still had to be steady and couldn''t act too eager. So he pretended to be calm and asked: "Are we the only three participating?" However, the reason why Kasore said what he just said was because he saw that the Chinese side could not swallow the aggressive tactics they played in that tone back then. If the person standing opposite him is an old fox like Zhu Linyu or Lin Zuoming, he might be able to fight. But as a technician, Liang Shaoxiu is still a little behind in his acting skills. In fact, before he even spoke, the changes in his eyes and expressions had already betrayed his inner thoughts. But Kasore is not going to point it out. After all, everyone has the same goal. So I still pretended that I didnt hear it and answered directly: "If I have to say, there was another E2C that also participated in the bidding, but it was rejected after verification on paper... Of course, Northrop Grumman probably didn''t take this order seriously, so in the end, it was the one who actually participated. Just the three of us." As a carrier-based early warning aircraft that compromises everything for catapult takeoff, the performance of the E2 series is indeed relatively average. I''m sorry not to mention the range and speed, but the key point is that it also carries a two-coordinate radar. The only advantage is that it can detect in all directions, but it is offset by the cheating mechanical scanning... There is really no way to compare with the other three heroes. What''s more, the entire E2 series is equipped with more than one hundred aircraft, which is indeed not bad. After a little preparation, Liang Shaoxiu asked the part he was most curious about: "Do you have any information about the other two products?" In 2003, although China had closer contacts with the West, especially Europe, it was still not considered "one of its own" militarily. Therefore, a lot of information that is considered public to European and American colleagues cannot be transmitted smoothly here. Information gaps still exist. "Ericsson is mainly promoting products after replacement. It is still in the early stages of development, and there is no accurate information... The carrier aircraft should be the Global 5000 that made its first flight at the beginning of the year. It is similar in size to the Falcon 8Z, but its range and speed are inferior. Some, its a shortcoming. Casore did not forget to emphasize the performance advantages of his own platform - Although a large part of it comes from China''s contributions, at least the overall design is still the work of him and Ed Steiner: "As for the Kingdom of David...the main promotion this time is the EL/W-2085 radar, which is similar to the one they are preparing to deliver to India, except that it has changed from a disc-shaped antenna to a conformal array...you should be better than me in terms of performance. Its just familiarity. After saying that, he glanced at Liang Shaoxiu with a meaningful look. Arch fire. Full of fire. But I must admit, the effect is very good. Although Liang Shaoxiu has not lost his mind yet, he is already a little red-tempered: "The comrades in charge of radar R&D and testing are still unable to leave, but if the information is complete, then we may be able to start to understand the load conditions and structure of the platform first..." While the two were talking, the ground crew had already dragged the aircraft into the nearby assembly workshop. At the same time, Liu Yongquan also came to Liang Shaoxiu to sign a pile of documents. "Mr. Liu, I see that the academician selection results came out last week, so Academician Chang should be still in the capital now?" He took out a pen and scribbled down his name, and asked casually to Liu Yongquan next to him. Whether it is Falcon 8Z or optically controlled phased array radar, Chang Haonan plays an important role in them. Although the latter did not continue to directly participate in the Air Police 2000 project after completing the communication technology verification, it is reasonable to send someone to report such a big matter. However, Liu Yongquan looked shocked: "you do not know?" Liang Shaoxiu stopped writing and looked up at the other party: "Know what?" "Academician Chang is in Haojing. He should have just arrived yesterday..." Although the relationship between Liang Shaoxiu and Chang Haonan is very close, they are not in the same company after all, there is only one layer between them. It is normal for information to be less timely. "Then I have to go find him myself..." Liang Shaoxiu is relatively efficient in doing things. After making arrangements for Kasore and his party, Liang Shaoxiu found a time to go to Haofa Group in a private capacity. Of course, it''s a private identity, but it''s only been four or five years since the two parties separated, and they still have work contacts, so they don''t really disown him as a person. So I met Chang Haonan smoothly. As soon as he came up, it was natural to congratulate him as usual. But Chang Haonan immediately saw that the other party had other purposes for his trip, so he quickly found an opportunity to change the topic: "Old Liu reported to me two days ago, saying that the handover of the Falcon 8Z has been completed... So Comrade Shaoxiu, your visit this time must be related to the early warning aircraft, right?" Over the past few days, Liang Shaoxiu also knew that his acting was really unlikeable, so he simply told the whole situation. To be honest, although Chang Haonan originally positioned the "Gaoming" system for export, and it was mainly for export to big dogs, he did not expect to find a second buyer besides France so quickly. All I can say is that luck does work. And when the other party mentioned that one of the competitors was David''s Felcon System, he became excited instantly. Its just that due to the baggage of my current status, its not easy to use foul language: "But just wait for me..." Chang Haonan tapped the table a few times with one hand: "It''s time to take revenge on the Ring Project!" Seeing that Mr. Chang''s reaction was similar to his own, Liang Shaoxiu, who was still a little nervous at first, also gained confidence: "I have already understood the specific situation with Mr. Didier Casore from Dassault. As far as the technical level of the product is concerned, we should have an absolute advantage..." "I am quite confident about this." Chang Haonan smiled and waved his hand. After all, he came up with the idea of ??optically controlled phased array radar, and its advantages of wide bandwidth and angle scanning are absolutely unique in this era. Therefore, he changed the topic again: "But since we know this, the other party must also know..." "So, in order to ensure that we can win the bid in the end...or at least ensure that the Kingdom of David is not selected, we need to make some additional preparations." (End of chapter) Chapter 1121 It is essential to be on guard against others Chapter 1121: Being on guard against others is essential "Extra preparation?" Liang Shaoxiu frowned slightly: "But according to the experience of colleagues in our sister units, customers in the Middle East generally... don''t care much about money." Chang Haonan thought that what the other party wanted to express was that big business owners did not care about cost-effectiveness when buying equipment. This can be regarded as a stereotype of domestic and foreign trade exports for a long time. "How is it possible..." He said and waved his hand: "Oil guys are just rich, not stupid... We see other people buying things without paying attention to the cost, because they are essentially spending money on more important things." Liang Shaoxiu was stunned for a moment, and then realized that they were not on the same channel. So he quickly explained: "No, what I mean is that the people they are responsible for purchasing generally don''t care much about money...at least they don''t care about the money we can afford." At this time, Chang Haonan also reacted and helplessly held his forehead: "What I mean by preparation is not to bribe the key personnel on the other side... but to prevent other competitors from causing harm during the bidding process." An international arms purchase project like this must be carried out in several rounds. Considering that none of the three companies that were actually selected currently have finished products, it will definitely be a battle between paper performance and the political power behind each at the beginning. But for such a large list, actual testing is inevitable in the end. And in this process, there are too many tricks that can be played. For example, when Persia went to the United States to purchase fighter jets, Grumman asked its F14A to turn on the engine first to consume part of the fuel. The actual thrust-to-weight ratio of the aircraft is not that ugly. Of course Liang Shaoxiu has heard this story, but in the final analysis he is still an honest man and lacks a deep understanding of the dangers of the international arms sales industry: "But if an early warning aircraft doesn''t care about maneuverability and bomb load...how can it cause trouble?" "You can''t secretly release interference during the test, right?" Chang Haonan couldn''t help but curled his lips: "It''s hard to say..." "Back then, the Greeks held a tender for new tanks. As a result, when the Challenger and Abrams were undergoing field tests, the French secretly sent agents to the test site to place jammers, causing the two models to not even follow the correct test routes. Liang Shaoxiu''s facial muscles twitched slightly, obviously he wanted to laugh but held it back: "So... the French Leclerc tank won in the end?" "That''s not true..." Chang Haonan shook his head: "Because the performance of these three products is very poor, the German Leopard 2A4 is cheaper." Liang Shaoxiu finally didn''t hold back. Chang Haonan also couldn''t help laughing... After a while, the two of them stopped smiling and returned to the topic: "In any case, although it is relatively difficult to use these small means in the test of aerial equipment, we must have a sense of defense... On the one hand, we don''t have much dealings with the Swedes, but the Kingdom of David... we can''t expect them to have too much You know the bottom line." "On the other hand, you don''t need to bribe any decision-makers to cause sabotage in the test. You just need to open up some low-level joints. In this regard, the David Kingdom has been dealing with them for decades and is much better than us." Liang Shaoxiu lowered his head and thought for a moment, then analyzed: "As far as the aircraft itself is concerned, as long as there are no problems with the French personnel involved in the selection on site, there will be no hidden dangers. Besides, no matter how courageous David is, he is unlikely to tamper with the French aircraft, so the risk should be Just focus on the airborne radar part..." Having said this, he hesitated for a moment Although he has continuously participated in or presided over the research and development of the three types of early warning aircraft, he is not an expert in the radar field after all. It would be safer to find comrades from the Electronic Technology Group: "Mr. Guo is still in the capital now. Comrade Fan Jimin is temporarily in charge of the equipment testing of the early warning aircraft. Do you need me to call him over?" Hao Jing, thats whats good about it. The local area has a well-established military industry, especially the military aviation industry. Problems that would have to be solved by flying elsewhere can be solved here by riding a bicycle. "Can." Chang Haonan looked at the time: "Just in time, I''ll also tell you about the early warning aircraft and some key points of the entire bidding..." The order from the big dog owner was too sudden. And at this juncture, it was impossible for him to abandon the half-finished project. The responsibility can only be entrusted to more reliable comrades. After receiving Liang Shaoxiu''s call, it took Fan Jimin less than an hour to stand next to the former. "Academician Chang, I have admired you for a long time..." As a rising star promoted by Guo Lin, today was the first time for him to see Chang Haonan in person. Because of the excitement, there was obviously a bit of vibrato in his voice. Chang Haonan did not answer the question, and just handed the panting opponent a bottle of water: "The conditions here are average. We haven''t prepared any tea, so let''s use mineral water..." Within a few words, Fan Jimin calmed down again. Immediately afterwards, Chang Haonan repeated his worries to him, and then analyzed: "''Gaoming'' is a wide-bandwidth-angle radar with pulse compression processing capabilities. It is indeed less susceptible to interference in general. Of course, everything has two sides. If the other party is prepared in advance to target it, it is not without its weaknesses." "If you think about it from the perspective of the interferer, the most effective way is probably to take advantage of the fact that the working wavelength of broadband radar is much smaller than the size of the target, and use inter-pulse coherence accumulation technology to carry out intermittent sampling and forwarding interference..." The range resolution unit of broadband radar is much smaller than the target size. Therefore, a complex target illuminated by a signal can be regarded as a collection of scattering centers. The echo signal is no longer a simple copy and delay of the transmitted signal, but contains local subtleties. Characteristic composite signal of multiple scattering centers. In other words, the resolution is higher. This characteristic makes it difficult to effectively accumulate the echo signal energy of the broadband radar within a repetition period, and it is almost impossible to interfere with the method used by Chang Haonan on the Konggan 100 pod. But as a price, once the coherent interference obtains sufficient processing gain and even performs characteristic fine modulation of the interference signal, the damage caused to the echo signal of the broadband radar system will be more serious. It can be understood as "Precision things are not prone to problems, but once problems occur, it is difficult to solve them." Fan Jimin''s reaction was also very quick: "Then the best response strategy should be to develop more effective low-interception technology so that the other party cannot perceive the radar search signal at all?" It should be said that anyone who can be favored by Guo Lin must have no problem with his abilities. But the experience is still lacking. "Low interception technology does cure both the symptoms and the root cause, but it requires major changes to the radar from beginning to end." Chang Haonan replied: "According to what Comrade Shaoxiu learned, Party A''s initial plan comparison phase should start soon. The entire bidding is expected to be completed within 18 months. We hope to receive the first aircraft in 2005... I''m afraid we don''t have that many time." "That" Fan Jimin looked troubled. Electronic warfare actually has very strong turn-based characteristics. Everyone learns the same set of things. Basically, you make a move and I take the move. The upgrade path is very clear and there are not too many tricks. And generally speaking, the difficulty of interference is much lower than that of anti-interference. Especially in the context of this kind of bidding. Because the other party doesn''t have to completely disable your equipment, it just needs to slightly affect the work efficiency. Even if a radar is one generation ahead of its time, if it is deliberately targeted, the latency will inevitably increase or the resolution will deteriorate. In actual combat, this will have no impact. But when compared with Party As eldest father, the gap is very obvious. After a brief silence, Chang Haonan was the first to break the deadlock: "Actually, the pulse-to-pulse coherence accumulation technology itself is not very mature yet. In addition, the David Kingdom will not really fly an electronic jammer to cause trouble. It is more likely to target a specific radar waveform..." "So we can preset commonly used waveforms such as truncated M sequence signals, OFDM signals, and LFM signals, and switch directly if there is a problem..." Fan Jimin''s eyes widened slightly. The so-called low interception technology is generally also called flexible beam control. It can be understood that the beam characteristics and parameters are adjusted through algorithms to avoid being analyzed by the other party. Chang Haonan''s idea is equivalent to starting a horse in a local way. Flexible, but not completely flexible. But its just as he said just now. It is enough to deal with the small tricks that the opponent may use. "Then after I go back, I will ask the institute to make some adjustments to the radar control system..." Chang Haonan nodded, and then gave a special instruction: "Don''t disclose this matter to the French side for the time being. At least we have to wait until the first phase of the bidding is over..." (End of chapter) Chapter 1122 We cannot expand nuclear power, but we can expand nuclear power Chapter 1122: We cant expand nuclear power, but we can expand nuclear power Time soon came to the end of 2003. The tracking filtering technology mentioned by Chang Haonan before has begun to take shape. Of course, it is purely a dream to come up with a hardware prototype in just one week. Even if you hit the screwdriver with sparks, it''s too late. Therefore, what he actually produced was actually a program that simulated the filtering function. It cannot play a practical role. But the principle of argument is enough. At the second seminar of the project team, Chang Haonan retrieved a data curve from the computer on the spot and input it into the program as an analog signal source. "Is this the test data of the fan blade from a few days ago?" Qu Liangsheng sat next to Chang Haonan, leaned over and looked at the first vibration amplitude curve, and asked curiously. "That''s right." The latter did not move his eyes away from the screen, while quickly inputting parameters, he replied: "The dynamic balance of the blades is better than I expected, but some parameters of the truss-type sandwich structure need to be further optimized to strive for a cyclic fatigue life of more than 10^9 cycles..." These parameters are all content that needs to be publicly publicized after future commercialization, so Chang Haonan doesn''t mind revealing them in advance. What''s more, the other party is one of our own. "A billion times?" Qu Liangsheng specializes in ground and offshore equipment, so there is little need to consider the weight of the equipment. But even so, this cycle fatigue life really made him feel exaggerated. "There is no way...the crack growth life of titanium alloy is too short and there is almost no fault tolerance, so we can only raise the standard." Chang Haonan hit the Enter key, then breathed a long sigh of relief, leaned back in his chair and waited for the calculation process to end: "Of course, on the other hand, the maximum operating temperature of the fan blades will not exceed 400C, and the rotational speed is only four digits. The conditions are still relatively mild...The main difficulty lies in the balance between static strength and high cycle fatigue performance." Seeing that the work at hand was over, Qu Liangsheng suddenly changed the subject: "Speaking of which, I analyzed the imbalance compensation technology that you mentioned last week, Academician Chang, after I went back..." He took out a notebook from his pocket and opened it. A simple geometric model is drawn on it. "Of course, the electromagnetic bearing-flexible rotor combination is still too far away from being implemented, so I wanted to use it in the improvement of existing products, including the next generation, so I prioritized the research on the contact bearing-rigid rotor combination, and then through the A balance block is installed on the rotor for balancing..." "The balance of a rigid rotor requires two correction planes, which is equivalent to four balance weight angles that need to be adjusted. The monotonic relationship between the optimization objective function and these four angles is very unclear, so it can only be converted into four one-dimensional Variable loop optimization problem." "Assuming that the rotor correction surface and the measurement surface are the same and both are on the rotor end surface, the centrifugal force generated by the unbalanced mass of the rotor is mu, the maximum centrifugal force generated by the two balance head correction mass blocks is m, and the coordinate system and the rotor rotate synchronously, then... " At first, several graduate students nearby took the initiative to come over, wanting to hear what the two big guys were discussing. But soon someone sat back down again... In fact, if the entire question was turned into a detailed paper, many people might be able to understand it. However, the discussion between Qu Liangsheng and Chang Haonan was too jumpy and it was really difficult to follow the train of thought. It wasn''t until about fifteen minutes later, when the simulated filtering results came out on the screen, that the former explained the entire derivation process. Of the dozen or so people who had gathered around just now, only three were still behind Qu Liangsheng. Judging from their intelligent eyes, I''m afraid they didn''t really understand. Just wanted to see what happens next... While the old academician was drinking water after finishing his lecture, Chang Haonan reviewed the other party''s derivation process again. I found that it is generally a coordinate rotation method. It can ensure that the stable point of the objective function is searched, and it must be the global optimal solution to the optimization problem. Then the purpose of the other party coming to find you is already obvious... Therefore, Chang Haonan took the initiative to ask without the need for Qu Liangsheng to speak again: "I think...Academician Qu should have already tested this algorithm?" Qu Liangsheng, who had just put down the water glass, visibly hesitated, then nodded: "Yeah, but it''s just like yours, it''s just a simulation test." He pointed at the computer screen in front of Chang Haonan The results after filtering are shown above. Even if there is no detailed analysis, it can be seen that the noise signal other than the vibration component of the same frequency as the rotation speed is much weaker than before processing. At least it won''t dominate the show. And this result was already expected by Chang Haonan. Therefore, he didn''t even bother to look, but continued to discuss the issue at hand with Qu Liangsheng: "I think the test results should be very good. Except for a few tentative steps, every other operation will reduce the amount of vibration, and the system vibration will not change suddenly. It just takes a long time and cannot adapt to the need for rapid balance. , right? Hearing this, several graduate students who had worked with Academician Qu in the past two days couldn''t help but stop recording or communicating, and all looked in the direction of Chang Haonan. Obviously, the latter guess is not wrong. Even Qu Liangsheng didn''t expect Chang Haonan to predict the result so accurately. He opened his mouth several times and then asked with a little regret: "So Academician Chang, you also think that this technology cannot be used on rigid combinations?" Although the calculation model of the contact bearing-rigid rotor is simple, the adjustment range of only two degrees of freedom through the slider is limited after all. Compared with the various control methods of electromagnetic bearings, the potential is indeed not very good. "Um" Chang Haonan looked at the notebook in front of him, organized his language a little, and then borrowed a pen from a graduate student next to him: "Not entirely. Of course, the adjustment range and effect are definitely not as good as electromagnetic bearings..." If we use the influence coefficient method instead, we can identify the initial information of the balance head by rotating the balance head twice, and then directly solve the algebraic equations to determine the rotation angle of the balance mass, thereby quickly finding the optimal balance point... The specific strategy is probably..." Chang Haonan quickly listed a matrix calculation formula on the paper. "As long as the first round of balancing can be achieved, the parameter values ??can be saved, and then the remaining vibration amplitude after balancing can be re-measured, and the subsequent recursive process can be entered..." Facing Qu Liangsheng, Chang Haonan did not need to explain the entire process like he was in class. As long as you explain a few key points, the other party will understand. As for more specific engineering practice, it definitely requires joint research by both parties based on the actual situation. So it didn''t take long for him to put down his pen again: "Of course, this balancing strategy may cause a sudden increase in unbalance when identifying the initial information of the balancing head. It can only be used for rotors with a small balance correction amount. Specifically for centrifuges, the separation factor of a single separation stage cannot be too large... " The graduate student next to him had quick eyes and quick hands, and he put the pen back at the speed of light. Its not that he is stingy, in fact, in the past week, he has been prostituted by others for almost a box of ballpoint pens... Fortunately, Qu Liangsheng and Chang Haonan were paying attention and did not notice this small movement. "It''s enough...not too big but enough." The former brought the notebook to his eyes and read it carefully again: "Although it is not weapons-grade, it can just solve the most urgent needs of the nuclear power industry..." In 2003, although China already had nuclear power technology and industry, they were not very developed. There are only three nuclear power plants in operation, Qinshan, Daya Bay, and Ling''ao, which together account for 2% of the country''s power generation. Among them, only Qinshan''s reactor was independently designed and built. But according to the plan, nuclear power plants will build reactors very quickly in the next few years. For example, Tianwan Nuclear Power Plant is already building its first two VVER units. This places higher demands on the supply quantity and quality of nuclear fuel. Qu Liangsheng closed his notebook and looked at Chang Haonan solemnly: "Academician Chang, I wonder if you are willing to go to Jincheng to make a name for yourself?" (End of chapter) Chapter 1123 "Clairsight" from China Chapter 1123 "Clairsight" from China "Going to Jincheng?" Chang Haonan quickly realized that the person he was referring to was definitely not Jincheng University. But Jincheng Uranium Enrichment Co., Ltd. Although on the surface this company is an ordinary second-level unit affiliated with the Nuclear Energy Industry Group, its products are so unusual that its status is relatively aloof. Qu Liangsheng, perhaps worried that Chang Haonan would misunderstand, quickly explained: "Don''t worry, I''m not taking a position in the Gold and Uranium Company. I''m just taking a name in the research team there. Otherwise, I won''t be able to reflect the role you play in it, Academician Chang..." In fact, this kind of theoretical inspiration is not strictly speaking a real participation in the project. After all, Chang Haonan just came up with a balancing strategy, and it was further optimized based on the influence coefficient method. How to apply the strategy to actual production still needs Qu Liangshengs team to complete. According to academic research standards, the most that can be done in this case is to add a citation to the article. But after all, everyone is a person of status. Inviting Chang Haonan to "join the team" not only shows respect for his contribution, but also gives platform to the new project to a certain extent. After all, the use of nuclear energy, no matter which way it is used, is always risky. There is also some resistance to expanding the scale of nuclear power. Especially at the grassroots level At the beginning of the 21st century, it is the stage when the broad masses of the people have some idea of ??science, but not much yet. Even the construction of a local chemical factory will cause huge problems. Now you say you want to build a nuclear power plant. Then everyone must be reluctant. However, due to special geographical disadvantages, China''s energy security situation is not optimistic, and it is necessary to ensure the diversified development of energy supply forms. In this case, what the superior needs mainly is determination. Judging from the situation in the past few years, Chang Haonan''s name, even if it is just a false title, has a very good effect in this regard... "We have to agree in advance. I can''t guarantee that I can provide help at the project execution level..." Chang Haonan gave the other party a vaccination first. In the next few years, his plans are already fully lined up, and he really can''t afford too many extraneous things. When Qu Liangsheng heard this answer, his face immediately lit up with joy: "I know that unless a non-academician takes the initiative to speak, I will definitely not cause you any trouble..." In just a few minutes, the name has changed... Chang Haonan waved his hand coolly, then pulled the laptop in front of him: "Let''s take a look at the results of tracking filtering..." "Actually, I noticed it just now." Qu Liangsheng put the notebook on the table back into his pocket: "It''s unimaginable that one of the three problems before us has been overcome just like this..." After the hardware equipment and software algorithms all meet the requirements, although there is still a lot of work left, in terms of difficulty, it can be solved by just a few PhD students. Therefore, to say that the problem has been solved now is not to open the champagne in advance. "Actually, we have been conducting research on ultra-high-speed rotors for a long time. If we had known that you had such needs, we might not have waited until today." There was a little regret in Chang Haonan''s tone. The years of delay in centrifuges were second to none. He mainly feels that it is a pity that if he had known that someone in China was researching flexible rotor technology two or three years earlier, he would not have been so conservative when designing the SeA650, and the technical level of the AE1500 should have been improved to a higher level now. "I can''t help it... I have only heard of Academician Chang''s name before, but I only know a rough idea of ??your project. If it weren''t for this academician selection, the Industrial Construction Committee promoted SeA650 internally as a model of technical cooperation. I''m afraid we would have I have to keep it in the dark for a while..." Qu Liangsheng shook his head: "Although the names of our systems have changed to XX Group, in terms of marketization and industrialization level, your Aerospace Power Group is still the only one... at most, plus the Aviation Industry Group, it is the best." "In the final analysis, our overall strength is not high enough." Chang Haonan thought clearly: "You are like hunting... Like SeA650, not to mention 80%, at least 60%, including the most critical core parts, are all developed by us. However, the market in this area does not recognize us enough, so we can only use Snecma as our Through the main propaganda, although we made some money in the end, we still took the initiative to integrate into other peoples industrial chains. "If our domestic aviation manufacturing industry reaches the same level as Europe and the United States, and our achievements can be used in our own aviation engines and aircraft as soon as possible, the industrialization efficiency will naturally increase..." Chang Haonan originally planned to use the Falcon 8Z as an example, but considering that this model is currently in conflict with the domestic military industry system, it would be safer to use the engine alone. In fact, where he didn''t see it, news about the combination of Falcon 8Z and "smart" radar was spreading like wildfire... As for the source, it is naturally the United Arab Emirates, which is looking for early warning aircraft all over the world. Because the bidding and selection of military equipment involves confidentiality issues, in most cases it is impossible for everyone to sit together and come up with plans to openly compare and bid like civil servants. Even if the seller has no objection, the buyer himself may not be willing. Therefore, a selection/tendering committee is generally established to test each model participating in the selection. Since the entire process is highly closed, there are too many twists and turns. Especially in a country like India where there is a relatively wide range of choices, the wealth of the person in charge of the bidding is simply immeasurable. Many times, the reason why arms sales are delayed for many years is not because of Party B''s lack of effort, but because Party A''s internal interests are difficult to reconcile. However, there are exceptions to everything. For Party A like the oil man in the Middle East, whoever is responsible for the docking and selection is not rich and powerful. There is really no shortage of the two you gave me. Therefore, the efficiency shown is unusually high. After the demand for purchasing early warning aircraft was raised in the fourth quarter of 2003, it only took almost three months to complete the selection of paper plans for each participating model. Basically consistent with the information obtained by Kasore, a humor grafting plan that the US E2C and Russia came up with out of nowhere was abandoned at the initial stage. In the end, only three designs with fairly similar general ideas entered the formal bidding process. One day in early February 2004. Abu Dhabi. Abu Sabah, wearing a suit and tie but also wearing a signature plaid headscarf, was standing half-bent at the table, introducing the three candidates lined up on the table to Mohammed bin Zayed, Crown Prince of Abu Dhabi. plan. As for why the crown prince, rather than the Air Force Chief of Staff, should be responsible for military aircraft procurement... First of all, dont ask. If you ask, I am of royal blood, and I wont tell you so much truth. And you cant say this is a layman guiding an expert. Although Prince Mohammed graduated from the Sandhurst Army Military Academy, he is a genuine fixed-wing and helicopter pilot. Secondly, and more importantly. For a long time, the chief of staff of the UAE Air Force was a Pakistani... Therefore, it can be said that no one in the UAE knows the air force better than Prince Mohammed. "Your Excellency, this is the overall design submitted by Ericsson. It is the most mature and lowest risk among the three plans." Because the Global 5000 has not yet been delivered, the renderings that Sabah has now produced are actually an EMB-145 early warning aircraft of the Brazilian Air Force: "In fact, they just moved their balance beam antenna to the Global 5000 business jet. There will be almost no major errors, but the performance of the radar itself is average, and the other support Sweden itself can bring to our country is limited..." "Fortunately, they share defense with NATO, so like the other two models, they can also upgrade the data link and incorporate our F16s, and even the F15s and F16s of the Saudi and Qatar Air Forces, into the command system..." In fact, as a country that rarely fights wars, the reason why the UAE is so eager to upgrade its air force equipment is largely because it wants to improve its status in the GCC. Therefore, it does not matter whether you can command your own air force. The important thing is that you must be able to command the air forces of other countries... The crown prince not only listened to Sabah''s judgment, but also looked through the design plans in front of him. But there didn''t seem to be any obvious interest. "Elta''s radar is almost an upgraded version of the existing model. It just changes the flight platform from a Boeing 707 to a G550 business jet that is more suitable for us. It is currently the fastest progressing among the three options. The first The G550 has already begun to be modified... However, the conformal array design has no reference to precedents from other countries, and the actual effect is difficult to verify. I am afraid that we will have to wait until the actual machine is tested before we can judge..." To be honest, the biggest shortcoming of the aircraft in front of me is actually its ugliness. But in order to ensure his professionalism, he still swallowed the words that came to his lips. "The last thing is Dassault..." When Sabah said this, he hesitated for a few seconds before speaking again: "Judging from the paper performance alone, this solution has obviously the best performance...Although the detection distance on paper is similar to that of Falcon, the latter is achieved in the L-band, while the former is in the S-band, and the detection accuracy is higher. High, and the main radar array coverage angle on both sides reaches 300, which is a quarter larger than the other two models..." "Wait a moment." The crown prince, who had been silent just now, interrupted him: Why was this proposal submitted by Dassault? "I mean, the bidders for the first two proposals are all integrators of radars and command systems, not manufacturers of flying platforms. Why is it only the French who are different?" Sabah curled his lips slightly: "According to Dassault officials, it was because they formed a joint research and development group and finally selected the most prestigious group to participate in the bidding as a representative." "But many people secretly know that the radar part of this aircraft was developed by the Chinese... However, the command and control system still comes from Thales, so there is no compatibility issue." Muhammad raised his hand and gently stroked his beard: "Chinese radar... no wonder it has such a strange name?" Compared with simple and straightforward code names like "Globaleyes" or "Seaeagle", Dassault''s "highlight" is indeed a bit confusing. "It is said that this is a **** in Chinese mythology who can see anything 500 kilometers away. Later, he was demoted to a mortal because he broke up the adultery of a higher god..." Sabah seems to have heard some allusions about "clairvoyance", but perhaps something went wrong in the process of being translated into several languages, and the content has obviously been distorted... (End of chapter) Chapter 1124 The Chinese cannot be allowed to succeed! (Begging for a monthly ticket for October) Chapter 1124 The Chinese cannot be allowed to succeed! (I beg for a monthly ticket for October...) If we look at combat effectiveness alone, it can be said that the UAE military has no value in existence. But from the perspective of influence, no one dares to underestimate a GCC country. Therefore, although the amount of the UAE''s arms purchase is not large, it is very important to the three finalists. France, needless to say. Countries in the Middle East are its traditional arms export targets. Considering that the GCC countries often have high equipment interoperability, once the early warning aircraft is successfully sold to the UAE, it is likely to open up sales for Rafale in the future, thus further maintaining its influence in this region. The Kingdom of David is even more of an insider. It can be said that the results of previous Middle East wars depended to a large extent on the actual tendencies of the GCC countries. If there is no effort but work, David will be able to win with relative ease. But if it were serious, the price would be hard to say. Therefore, although the GCC countries have essentially become allies of David in the past decade or so, it is obviously a safer choice if the relationship between the two sides can be further brought closer through a representative arms sale. On the contrary, the Swedes'' considerations are relatively simple. Just make money. Compared with Brazil, which has little international presence and is cash-strapped, the Middle Eastern oil man is obviously a better father to Party A. If they can accomplish this, it will be enough to make their equipment an instant hit. Therefore, everyones eyes are also staring closely at the first round of selection... Kingdom of David. Yair Kentz, general manager of business development at IAI, received a report from Shaul Mavita, head of the military aircraft department, at almost the same time. The content is naturally about the preliminary results announced by the UAE. "As you might expect, both the United States and Russia are just going through the motions. In the end, it will be a competition between our three models..." Mavita flattered him a little at first. But Kenz seemed a little irritable at this moment Just a year ago, this early warning aircraft design scheme of phased array radar + ultra-long-range business jet seemed to be an exclusive product of IAI, which was almost a surefire success for small and medium-sized countries. As a result, without paying attention, two similar models appeared out of nowhere. "Now that I think about it...when Dassault Group approached us for cooperation last year, we shouldn''t have rejected it so quickly..." Kenz took off his glasses and rubbed his slightly sore forehead with some regret. "At that time...there was nothing we could do." Mavita quickly replied: "First of all, what we signed is an exclusive supply agreement. The French Falcon 8Z is the best-performing model among this generation of large business jets. It is obviously impossible for Gulfstream to be willing to let competitors come to share its pie..." "And from a cost perspective, it''s impossible for us to develop conformal array antenna kits for two different platforms at the same time." If a leader proactively expresses self-blame in front of his subordinates, he is most likely asking the latter to find a reason to excuse him, which will make him feel better. Rather than actually letting you join in condemning him. Kentz is no exception. After hearing the reason Mavita found, his expression of regret just now disappeared without a trace: "So...do you know the current tendency of the other party''s decision-makers, or their evaluation of these three models?" It''s still early days in the selection process, so no matter what happens, there''s still plenty of room to deal with it. If you wait until the actual testing begins in a few months, many things will no longer be able to change. However, Mavita failed to give the answer he wanted: "In this matter, the person in charge of the other party is very high-level, and the intelligence department is unwilling to take special action for us, so it is difficult to obtain useful information..." "You know, with the systems of those kingdoms, they don''t need to explain anything to the parliament or the people. They just need to let a person in charge with a high enough status make the decision." Hearing this, Kenz shook his head helplessly and gave a sharp comment: "What an evil **** system..." Although he said so, Mavita clearly noticed that his leader''s expression just now was clearly one of envy. Of course, he did not point out this matter, but changed the subject and continued: "However, Mr. Kents, we have obtained some information about our competitors through some low-level staff..." This pull and step directly highlighted his working ability. If it had been normal times, Kentz might have noticed this clever remark. But now, his focus is obviously not here. After a brief description that was almost the same as the actual situation, Mavita concluded: In general, the paper performance of the solution proposed by Dassault has certain advantages. Of course, we have not been able to obtain all the parameters, but what is certain is that their aircraft platform is faster, has a longer range, and has radar At least it doesnt lose to us in terms of detection distance. "In addition, the UAE has been accustomed to using legal equipment in the past, and the replacement process will be smoother. Therefore, many members of the delegation hope to eventually choose French products..." "Is that so..." Kenz looked thoughtful. If it were other problems, he might still be able to work on it. But usage habits... That can only be said that there is really no way. You can''t just change the IDF''s preferred design to the French one just for the sake of ordering these aircraft, right? Besides, its not that easy to change In fact, for a moment, Kentz had decided to resign himself to his fate. IAI is not a company that relies on export orders to survive. Although this business is very important, it does not mean that the country will be destroyed if it fails. "Ericsson''s plan...isn''t there any explanation?" To be cautious, he confirmed again. Although they are both NATO allies in a broad sense, the relationship between David and Sweden is not good... Or it can be said to be very poor. So he doesn''t want to see the Swedes win the bid. "No." Mavita replied without hesitation: "There is little even discussion about the performance of the Swedish model..." Obviously, this is worse than a bad review. Kenz breathed a sigh of relief: "Although I don''t know how the French took out this early warning aircraft, but..." He was interrupted by Mavita when he was halfway through his words: "As for the technical source of the early warning system...the intelligence agency has given an explanation." "Based on the current news, it should be a product jointly developed by France and China..." For a moment, the entire office was as quiet as death. Kenz slapped the armrest of the seat: "Why didn''t you inform me about this earlier?" Mavita was shocked by this sudden change: "Europe and China have jointly developed no less than ten types of equipment over the years...and you didn''t ask specifically..." Kentz also knew that it was unreasonable for him to get angry with the other party, so he reluctantly calmed down: "No, I have to find a way..." We must not let Dassaults plan win the bid! The reason for the 180 change in attitude was not that he personally had any objections to China. In fact, no matter from a geopolitical or economic perspective, there is no need for any confrontation between the Davidic Kingdom and China. The main reason is that IAI cannot afford to lose this person. At that time, China spent money and David provided technology for the ring project, which made a lot of noise. But no matter what the reason was, it ended up being very unpleasant. In the end, China failed to obtain the technology of Falcon System. I originally thought that this would prevent the opponent from developing early warning aircraft. However, in 1999, someone actually took out an early warning aircraft with a very unique appearance during the military parade. As a result, IAI directly became a clown. Those who know the inside story will say that this is a slap in the face of Americans. Those who didn''t know it felt that this was a slap in the face of David. Thats all. Anyway, no one knows what the performance of China''s early warning aircraft is. Is it possible that he is just trying to show off his appearance? Although Kentz himself knew it was impossible, the publicity could at least say so. But it has only been less than five years. If the Faircon system directly loses to the same type of products using Chinese technology in the bidding... But it''s different. Even if you can give 10,000 reasons. But from the outside world... Then it can only be food... (End of chapter) Chapter 1125 The King of Ideas in the Middle East (New January, please vote for me) Chapter 1125 The King of Ideas in the Middle East (New January, please vote for me) When the ring project ended, Shaul Mavita was still in charge of market relations coordination in Europe, so he didn''t know much about the details. At least not as much as Yael Kentz, who experienced it. However, seeing the latter''s reaction just now, he could probably guess the reason. In fact, from Mavita''s own point of view, this matter is not worth making a fuss about at all. He has been in charge of the European work since 1995, and was transferred back to the headquarters last year. He almost watched with his own eyes as the reputation of Huaxia products went from being unheard of in Europe, to being infamous, to mostly negative reviews, to mixed reviews. , and finally divided up the European affordable market with Korean products. Many European companies talk about their disdain, but if you take a closer look at the supply chain, you will find that the body is very honest. There is no shortage of places where Huaxia products should be used. Even the NH90 helicopters commonly used by many NATO countries have chosen Chinese suppliers with a high proportion. There are even more outrageous rumors that the NH90 was jointly developed and designed by China and Eurocopter. Of course, Mavita still doesn''t believe this statement. In short, it is an indisputable fact that the bond between China and Europe is getting deeper and deeper. In this case, it is a normal idea for both sides to work together to create an early warning aircraft. There is no reason to go to war over this matter. Since others are bidding in the name of Dassault, it shows that the Chinese people do not want to use this matter to make a big fuss in public opinion. Even if he wins, the most he can feel is that he feels good. But I want to think about it. Since Kenz now wants to fight to the death, he is not prepared to disobey the leader. "Then... why not let Washington come forward to put pressure?" Like most Davidians, Mavita''s first reaction after encountering trouble was to ask the United States for help: "Even if China doesn''t take threats, the UAE and France will always consider the Americans'' ideas, right?" On the surface, this proposal does seem good. But politically it seems too naive. Kenz shook his head almost without thinking: "Washington might pay any price for us ... but not in something like this." "Europe has gained momentum in the past two years. Not only does it want to replace the United States economically, but it also has a tendency to seek independent defense militarily. The attitude of the United States should be to adopt an appeasement policy first, and then look for opportunities to break through from within Europe... In short, under the current circumstances, we cannot simply consider the issue based on Cold War thinking. There was actually another thing Kenz didn''t say. That is, as the euro becomes stronger, the United States needs to do everything possible to avoid the euro being anchored to any key commodity. Moreover, at the end of 2003, the US military was still dreaming that it would be able to withdraw its troops from the Mesopotamia in the first half of 2004 and leave regional defense to its GCC allies. It is even more impossible to offend both buyers and sellers at the same time for this little thing, and add a country that is rapidly erupting and the trade volume is rising. Mavita frowned slightly: "But the person in charge of this arms purchase is Crown Prince Mohamed Zayed. If we don''t use pressure, are we going to buy a future king?" This is obviously unrealistic. The entire UAE belongs to others. But for Mavita, who has been running rampant in Europe for more than ten years, he really can''t think of any other way besides intimidation and bribery. But Kenzs mind still needs to be a little more flexible: "Has the other party informed you of the specific format of the second round of real machine bidding?" The brain circuits of big dog owners cannot be treated by normal methods. For example, when Saudi Arabia purchased large-caliber howitzers, it actually brought together the models participating in the bidding from various countries and conducted an on-site target shooting test. Of course, army equipment is not worth much, so it is not too outrageous to do so. But it is more bizarre that the humorous American representative broke into the bombing zone and was almost killed because he did not believe in the range of Chinese products. At least it shows that management is not strict. If the UAE also engages in this kind of gameplay, there will still be a lot of room for maneuver. "It just means that the bidding process will be completed before June 2005 at the latest. The specific testing process and time will be discussed by each of the three parties and the selection committee." Mavita replied: "In addition, the condition for effective participation in the test is to produce at least a prototype that is close to full condition, and the aircraft needs to be brought to the United Arab Emirates for testing." It seems that His Excellency the Crown Prince''s thinking is relatively normal. In this kind of arms sales where Party A is obviously strong and has many options, it must be as controllable as possible. However, this is also equivalent to exposing a flaw. Kenz thought for a moment and then smiled: "Although we can''t bribe the crown prince himself, we can still bribe a few technicians and let them slightly influence the test results... right?" Although the Mossad agents are not as magical as in the legend, as long as you are a professional, it is not a big problem to do such a small job. "Ah?" Poor Mavita has been active in Europe in the past, and has no contact with the cruel terminal market. Most of the people he deals with are decent people. How could he have thought of such a dirty trick? I was shocked on the spot. "how." Kenz raised his eyebrows slightly: "Do you have a better idea?" Of course Mavita didn''t. But his moral bottom line is quite flexible, so he quickly convinced himself and began to think specifically about the problems at the implementation level: "But we don''t know the specific circumstances of the test yet, nor do we know the specific parameters of the other party''s model..." Before he could finish speaking, Kenz interrupted: "These should be the work of the intelligence department and we don''t need to worry about it... Now this matter has risen to the level of national dignity. I will explain the situation to my superiors and ask for more support." Mavita''s face remained calm, but she couldn''t help but curse in her heart: "What kind of national dignity is this? It''s not like you were messing around before and then lost it. In the end, you had to find others to help wipe your butt..." However, on the surface, he still looked worried about his leader: "But if we don''t provide technical support, I''m afraid those rough guys from Mossad will just plant bombs... If it really makes a big fuss, it will still be detrimental to us..." Although IAI is called David Aircraft Industries, its specific business covers almost all fields of land, sea, air and space. For example, its subsidiary Elta, in addition to developing large-scale products such as the Falcon system and LAVI fighter jets, also specializes in One of the important suppliers of equipment and electronic warfare equipment. Any powerful intelligence agency or special forces cannot function without strong technical support behind it. "Um" After Mavita said this, Kentz also felt it was reasonable. After all, others are two of the five permanent members. He just wants to regain his face, not to seek death. Fortunately, the latter''s smart mind came into play quickly, and a new idea quickly jumped out: "Unit No. 01 is currently undergoing final modifications and equipment debugging in the assembly workshop. It will make its first flight in about two months, so during the test phase, that aircraft can be used to temporarily carry it on top..." "Even if our three sets of tests are not exactly the same, the processes should be similar..." The idea seems to be getting clearer: "In this way, you go and communicate with Abu Dhabi and say that we plan to conduct testing in May or June!" The sudden change in plans made Mavita, who was solely responsible for the bidding affairs, a little confused: "Is it too hasty to conduct testing less than three months after the first flight?" "Won''t." Kenz is very confident in technology: "The radar and aircraft are both mature designs. In addition, the Falcon 8X business jet model has just begun to be delivered for commercial trial operation. I am afraid it will have to wait for a while before the modification of the early warning aircraft can begin, and Bombardier will even be three years later. Months, the delivery cycle is one of our strengths, and we can take this opportunity to show it..." At this time, Mavita had already taken out the notebook he carried with him and started writing furiously. The former continued: "After we complete the test first, the French and Swedes will definitely be anxious and will submit the complete design plan to the UAE earlier. This will also give the intelligence agency more time to obtain relevant information about the other party and do some work. Make targeted preparations. "In addition, inform Elta Company that it is planning to modify a small forwarding jamming device based on the existing product. It is best to be carried on an aircraft the size of a drone..." After finishing the request, Kenz waved his hand towards Mavita, indicating that the latter would do as he said. Then he breathed a long sigh of relief, leaned back on the chair in a relaxed manner, and said to himself: "Chinese Radar...I really don''t believe it anymore..." (End of chapter) Chapter 1126 Pre-connection process Chapter 1126 Pre-connection process If Yael Kentz''s idea could be foreseen by the Chinese side, then Liang Shaoxiu would have to laugh three times and then arrange a name like "Little Zhuge" for Chang Haonan. It''s a pity that we can''t. At the beginning of the 21st century, China has almost no sense of presence in the Middle East. Lao Wu''s activities are mainly in the Kurdish mountains and the South Caucasus, and he cannot reach the level of the GCC. Even the bidding work was done by Dassault personnel in order to avoid suspicion. The Aerospace Power Group and the Electronic Technology Group only sent a few engineers in the name of accompanying personnel to be responsible for the technical details. Otherwise, if Party A asks someone about something outrageous and cannot answer the question, it will be very embarrassing... However, this piecemeal approach is really inconvenient to understand the situation of competitors. Therefore, both Liang Shaoxiu and Kasolei are still working with the mentality of facing a formidable enemy. The good news is that as early as two years ago, Torch Group reached a strategic cooperation agreement with Dassault Software, allowing the new version of TORC Multiphysics to be compatible with front-end design software such as CATIA, thus eliminating a lot of problems such as mesh misalignment or model adjustment. kind of trouble. In addition, Dassault''s active cooperation this time provided complete design parameters for the fuselage, which saved a lot of effort in the early design process. However, even so, time is still not entirely on China''s side. Due to the special fixing method of the "Gaoming" radar, Haofei Group needs to modify the entire tail, more than 70% of the back and about 30% of the belly of the Falcon 8Z aircraft. This workload is not only much greater than the global eye of the Swedes using the balance beam solution, but is even comparable to the G550 Sea Eagle of the conformal array solution. If the construction period of Air Police 200 and Air Police 2000 is estimated, then the entire process will last 6-8 months at the earliest. Including flight tests and basic functional tests, I am afraid that it will not be possible to go to the United Arab Emirates for actual machine testing until the end of the year, or even early 2005. Although it has not exceeded the 18-month deadline given by Party A, if it is much slower than the other two competitors, it will inevitably be suspected of rushing the work with insufficient completion. The bigger trouble is that when the research and development of early warning aircraft has essentially ended, the longer you delay at the factory stage, the more information will be leaked Considering that there are so many people in the workshop, this is a situation that is impossible to completely avoid. Both parties have a clear understanding of this point. Therefore, after the David Kingdom informed the UAE of its test schedule at the speed of light, Kasore found Liang Shaoxiu almost immediately: "Liang, David''s movements are faster than we imagined." He sat opposite him with a solemn expression: "Currently, the UAE has received news that IAI is preparing to conduct real-machine testing between May and June this year..." In just a few years, Kasore''s hair turned from black to gray. Liang Shaoxiu subconsciously glanced at the calendar on the corner of the table: "That means there are still four months..." After speaking, he frowned slightly: "But I remember...two months ago you said that the modification work on the G550 was expected to continue until this summer?" The test in May-June shows that the aircraft will be able to make its first flight in April at the latest. And now it''s early February. It is equivalent to entering the final stage of modification... What''s going on? Liang Shaoxiu complained in his heart that no wonder you French are not good at fighting. If left on the battlefield, this level of lying about military information would have been punishable by death... And Casore also looked embarrassed: "The information we have received before is that the David Congress will reserve the No. 01 machine for self-testing, and the slightly slower No. 02 machine will be provided to the United Arab Emirates for testing. If the bidding is successful, it can also be delivered as the first mass-produced machine... But Now it seems that the Kingdom of David took Unit 01 directly..." "Is it taken so seriously?" Liang Shaoxiu couldn''t help but be a little surprised. In fact, both Dassault and Ericsson sent the first prototype directly for testing. But that''s because both France and Sweden are in a very stable external environment and are not in a hurry to use these two early warning aircraft. But the situation in David''s kingdom was obviously different. It''s really urgent. You must know that modern early warning aircraft can not only command air combat, but also conduct large-scale battlefield surveillance, or organize air units to conduct ground attacks. This can squeeze out a plane, which can be said to be a high level of attention. After hearing Liang Shaoxiu''s words, the expression on Kasore''s face turned playful: "Perhaps... it''s because the other party also knows the role you play in this model?" After staying in China for the past two months, he has become well versed in the art of Gonghuo. Although the former''s expression showed no change, his slightly narrowed eyes still revealed his inner uneasiness A cooperation of this level like the Falcon 8Z is simply impossible to hide from real industry insiders. Just as the Chinese side was like a chicken after learning that David Guo was participating in the bidding, the other side would naturally give a super-standard response in order not to be embarrassed. After a few seconds of silence, Liang Shaoxiu seemed to have made up his mind: "Mr. Casore, we can try to shorten the entire aircraft modification cycle to about 3 months..." One sentence directly caused the heart and lungs of Kasore on the opposite side to pause. He even forgot to blink for a moment and just stared at Liang Shaoxiu dumbfounded. "However, this requires your full cooperation..." Kasore nodded subconsciously, and then it took two seconds to react: "Wait a minute...aren''t we already fully cooperating?" "What else needs to be done?" Liang Shaoxiu waved his hand: "This time it''s not just the design level, but your factory needs to be involved." Casore was already a little confused: "But the planes have already been sent to China...our factory can''t do anything except provide spare parts?" This time, Liang Shaoxiu just smiled mysteriously and did not give a reply immediately. Instead, he did some operations on the computer in front of him. Soon, with a creaking sound, the printer next to me spit out several sheets of A4 paper. Kasore leaned over and took a look. Printed on it is the structural diagram of the middle part of the aircraft, which is also the most critical part of the entire modification. "In fact, the hardware of the radar system, including the radome, has basically been completed." As he spoke, Liang Shaoxiu picked up a pen and drew circles on several beams on the picture: "In the entire modification work, the longest time-consuming part is actually these sidings composed of skin and long trusses." Especially the part that connects the back part of the fuselage and the radome. Due to the complex geometric deformation and pre-connection force, it is impossible to ensure qualified components only by the processing accuracy of the shape and size of the part itself during the assembly process. Therefore, in the wall panel During the assembly process, a large number of frames with positioning and clamping functions are required to ensure the precise geometry and assembly quality during the assembly of parts to components..." Casore is also an experienced veteran, so these details are naturally clear: "That''s right... Because the skin and girders are large in size, weak in stiffness, and easily deformed under stress, it is difficult to use pre-connection technology like other parts..." Seeing that the other party was already on the road, Liang Shaoxiu changed the subject: But we have a new technology that can calculate in advance the initial gap between the skin and the girders, as well as the amount of deformation accumulated during the positioning and clamping stages, so that we dont have to transport all the parts to the assembly line and install them separately, Instead, it can be pre-connected in advance after the production of large parts... If the craftsmanship level is high enough, it can save about 40% to 50% of the modification time..." Kasore''s breath hitched. But on the surface, he still maintained his previous posture without moving. He just glanced at Liang Shaoxiu. "Sounds a bit radical..." His eyes were full of suspicion: "And... why didn''t you use this technology in the first place?" Liang Shaoxiu rolled his eyes slightly: "Of course it''s because the technology is too new, so it needs to be tested on your side..." In fact, the basis of this process is the flexible and adjustable production line developed by Yao Mengna in the early years. But it was not until Chang Haonan solved the calculation problem of large-size plate and frame deformation late last year that it was truly usable in engineering. As a result, he didn''t notice for a moment, and actually said this sentence to himself, which was originally a complaint in his heart. "Sorry I didn''t hear clearly...what did you just say?" Fortunately, it was in Chinese, so Kasore didn''t understand it. Liang Shaoxiu quickly cleared his throat and pretended: "I said, because the new process requires very high levels of workers and equipment, your factory in France needs to be involved to ensure that it can run at full power..." (End of chapter) Chapter 1127 Trent 900 takes flight for the first time! Chapter 1127 Trent 900 makes its first flight! Everyone is willing to listen to compliments. Casore is naturally no exception. Although he guessed based on intuition and the length difference between the two sentences, the other party probably did not mean this at first. But in the end I decided to accept the latter statement. After all, according to common sense, there shouldn''t be much difference. And at this juncture, its not the time to dwell on these minutiae: "I can go back to France, but..." Casore looked at the design drawings in front of him and hesitated a little: "Although the pre-joining process is not unfamiliar to our workers, it has never been tried on workpieces of this size and characteristics before, and there is not too much time for trial and error this time, so your process needs to be very Just be safe..." "Don''t worry, we will provide the parameters directly, you just need to follow them..." Liang Shaoxiu replied, but soon seemed to remember something again, and emphasized again: The only thing that needs to be noted is that in addition to the process issues within the unit, we must also consider the process-related issues caused by the gap flow between units, which did not exist in the previous pre-connection process..." "For example, between the two units, for unit 1, the left side of the wall plate is the positioning datum, and all the degrees of freedom on the left side of the skin and girders containing manufacturing errors are constrained, while all the degrees of freedom on the right side except the Z direction are also constrained. is constrained, but due to the influence of many factors such as part manufacturing errors and positioning errors, applying pre-connection to reduce the gap of unit 1 will cause the gap to flow to unit 2 and increase the initial gap of unit 2..." Kasore suddenly felt that he seemed a little confused. In fact, this is normal. Because many related proper nouns were coined by Chang Haonan by referring to his previous life experiences, or even completely casually. It''s barely understandable in a Chinese context, but after Liang Shaoxiu''s simple and crude literal translation into English, it does seem more abstract. Fortunately, he only briefly introduced the concept, and it was impossible for a foreigner like Casore to talk casually about the specific design methods. Otherwise there will be more linguistic barriers... In short, a week later, Casore took the first set of technological solutions provided by Liang Shaoxiu and boarded a chartered flight back to France. As for other subsequent plans Because time is so tight, we can only design while producing. The painter was ecstatic and it belonged to him. Although the Dassault Group is headquartered in Paris, in order to specialize in the production of the new generation of Falcon series business jets and Rafale fighter jets, they still placed their new factory in Toulouse, the holy land of the French aviation industry. That''s right, together with Airbus, Socata, ATR, Snecma, ONERA and many other heroes, they formed the Toulouse Aviation Industrial Zone. Therefore, Casore did not even return to Paris at all, but flew directly to Franchar Airport with a group of entourage. Compared to the famous Blagnac International Airport, it used to be the home of the French First Airborne Training Regiment, so it is much smaller. There is only one runway. Fortunately, after being extended, it can barely take off A330/340 aircraft. However, due to the advantage that it is not open to the public, it is a very important place for these aviation companies in Toulouse, especially the complete aircraft companies. Needless to say, manufacturers of small aircraft such as ATR and Socata almost all use this place as a base. Even Airbus often conducts test flights or ships parts here. After the establishment of Dassault''s new factory, considering that it was difficult to conduct some military aircraft testing at a civilian airport, it also obtained partial use rights here. However, before Kasore''s chartered plane landed, he noticed in mid-air that a large four-engine passenger plane was parked on the tarmac next to him. It looks like an Airbus A340. But not quite. As an internationally renowned 5APU, the four engines of the A340 are quite compact compared to the overall size. But now, even from a distance of several thousand meters, it is not difficult to find that a behemoth with a diameter almost twice that of the other three is installed on the inside of the left wing of that aircraft... Meanwhile, the airport ground. Charles Champine and Tim Purdy were standing side by side not far from the plane, watching a group of technicians conducting final inspections before takeoff. Although there were a lot of twists and turns in the process, fortunately the problem was solved quickly and did not have a too bad impact on the ground testing of the Trent 900. Finally, the installation was completed in early February 2004, and two rounds of successful ground taxiing start tests were conducted three days ago. And today is the day this model goes to heaven for the first time. "In fact, at the beginning, many users felt that your aircraft engine design was a bit too radical, and they hoped to use Engine Alliance''s models in the first batch of delivered products." Champine suddenly said. As a European company, Airbus cannot be too biased due to commercial considerations, but at least for himself, he is still happy to see Rolls-Royce models becoming mainstream. Bodi sneered disdainfully: If the technology wasnt radical, how could we have such leading performance now? That''s what he said, but even though everything had passed, Bodi was still sweating a lot on his back - In fact, the design of the Trent 900 is too radical. As a result, there were large-scale process callbacks and a testing accident that almost shattered the entire model. Of course, the latter is strictly not directly related to design. The company that produced the unqualified oil pipe has been permanently blacklisted by Rolls-Royce and has been replaced by three other unnamed suppliers. In short, if it were not for the good luck in finding foreign aid, the competitor GP7200 might have caught up... "That''s true..." Champine nodded: "To be honest, the fuel economy and quietness of the Trent 900 are indeed the best I have ever experienced in my career..." "Of course." Bodi straightened his waist involuntarily: "Not only that, in terms of pollutant emissions, although the Trent 900 is expected to be put into production before the end of 2005, it still complies with the CAEP6 emission regulations... This is something that many models currently under development have not achieved." According to ICAO regulations, engines put into production after 2004 use CAEP4 emission standards, and the more stringent CAEP6 will be launched after 2008. In fact, the "many models" he mentioned are not many. It''s just for GP7200... While the two were talking, the Dassault charter plane that had been preparing to approach the airport had landed smoothly on the runway. Since there are no annoying commercial flights here, all the rest of the day belongs to Airbus and Rolls-Royce. Soon, as the real APU made a crisp blasting sound, the A340 numbered 341 successfully started all four engines. A low roar then reached everyone''s ears. As an aerial test platform, the aircraft''s No. 2 engine can be controlled independently by testers in the cabin, so it remains at idle. The other three units carefully controlled the thrust and allowed the aircraft to smoothly slide out of the parking position. In order to ensure safe take-off, large aircraft taking off from Franchar Airport need to move backward to the end of the runway before they can start to accelerate. For Platform 341, there is an additional step. Just wait for the speed of the No. 2 engine to slowly reach the standard. As a prototype for testing, it certainly cannot be operated as roughly as the production model. Moreover, there are still some subjects that need to be completed in this process. At the same time, inside the cabin. Jin Xu was sitting in a somewhat out-of-the-way position, observing the situation inside the entire aircraft. According to the previous agreement between Rolls-Royce and Aerodynamics Group, he will participate in the entire Trent 900 platform flight test in the name of technical consultant. He became the only Asian-faced staff member on the entire plane. Of course, according to industry practice, he could only watch but not interfere. But that''s enough. The reason why Chang Haonan sent him here was to fully understand EASA''s standard process for civil aviation engine testing and prepare for the subsequent design and production of the AE1500. Therefore, Jin Xu didn''t even want to blink at this time, for fear of missing some detail. About ten minutes later, several tests before takeoff were completed, and the speed curve of the No. 2 engine reached about 60% - After all, it is a model with greater thrust. If it uses all its strength, the No. 1 engine on the same side will need to be reduced in thrust and trimmed. After confirming that the speed was stable, an engineer next to him picked up the radio: "Engine No. 2 is ready for takeoff!" (End of chapter) Chapter 1128 Airbus, aiming for the future (xdm asks for a monthly ticket) Chapter 1128 Airbus, aiming for the future (xdm asking for monthly votes) The two test pilots in the cockpit have been waiting for a long time with the car warmed up. After receiving the takeoff command, the captain immediately released the brake lever. Jin Xu in the cabin only felt a slight vibration, and then the plane began to accelerate. The A340 has long been criticized in terms of takeoff distance and climb speed due to its relatively low thrust-to-weight ratio. Fortunately, this aircraft is just a test platform, and its dead weight is dozens of tons lighter than that of passenger transport, so the experience is similar to that of the 737 and A320 that we often fly on. In fact, if the runway length limit is not taken into consideration, only one Trent 900 (equivalent to 2.5 CFM56-5C) is required to be fully turned on to propel this 200-ton aircraft to accelerate and take off. Therefore, the main functions of the other three engines are actually safety and trimming. After all, there is also a project to simulate a mid-air parking and then let the engine complete self-starting during the test. But we certainly cant really make the aircraft powerless. Throughout the takeoff process, Jin Xu was staring at a screen not far away. What is shown above is the speed and load of the rotors of the No. 2 engine at all stages, including the fan. Until the climb reaches 8,500 meters and levels off, the entire curve appears to be quite smooth. There were only two significant fluctuations. The moment the plane raised its head, and when it climbed to about 2,500 meters and encountered a burst of violent irregular airflow - Considering the severity of the air intake distortion, the working stability of the Trent 900 is obviously relatively optimistic. As for more detailed data, we have to wait until it is implemented before analyzing it. "Slowly rise to 10,500 meters, adjust the rotation speed to 40%, and prepare to connect the RS325 and HC402 probes..." The test leader sitting not far away ordered methodically. Upon hearing this, Jin Xu quickly turned his attention to the other party, and at the same time took out a notebook from his pocket After helping Rolls-Royce find out the cause of the accident, Aerodynamics Group''s position in the entire project also increased. Otherwise, how could a mere second-tier supplier have the opportunity to follow us for aerial testing? Originally, he even wanted to bring a camera and tape recorder. But this is indeed a bit too outrageous. In the end, the two parties reached a compromise plan that allowed him to move freely without affecting normal test work and flight safety, and use paper and pen to record. The RS325 and HC402 are carbon oxide and nitrogen oxide detection devices installed under the wings respectively, used to test the pollutant emissions of the engine at different speeds. It is also the most important thing that Jin Xu needs to understand during this trip. Chang Haonan plans to focus on ultra-low fuel consumption and ultra-low emissions to enter the international market for the AE1500. However, China did not actually have a particularly complete aviation emission test standard before. And since this model is preparing to obtain EASA certification in the future, it is obviously a good choice to take this opportunity to refer to the process of Trent 900... At this time, the aircraft had climbed to an altitude of nearly 10,000 meters. It was impossible to directly see the flight conditions from the ground, so Champine and Bodi found a place with a bright sun and waited for the first flight test to be completed. . Not long after he relaxed, the former saw a somewhat familiar face walking quickly in his direction. "Hello, Director Champine!" The visitor took the initiative to come forward and said hello to him. Only then did Champine remember that a Falcon 2000 business jet seemed to have landed before the 341 test platform took off. But at that time, his focus was all on the engine, and he didn''t care about the plane. Now that I think about it, it should be a charter flight from Dassault Group. "Dr. Casore, long time no see." Champine also shook hands with the other person warmly. The aviation industry group in Toulouse may seem quite large, but in fact most places are airports. The area really used for office and scientific research is not very big. The two of them are both senior executives of France''s core aviation companies, and it can be said that they see each other without looking up. We have known each other many years ago. As the management of Rolls-Royce, Bodi actually has little dealings with Dassault, which mainly deals in fighter jets and business jets. For Kasore, at most I have heard the name, but certainly not as acquaintance. So he originally wanted to find a reason to avoid it, and he could also take advantage of this time to take a nap. However, just as he turned around to leave, he heard Champine continue: "The last time I saw you was before Christmas last year... I heard that you went on a business trip to China?" For Casore, the cooperation between Dassault and China was no secret at all, so he answered almost without thinking: "Yes, there is a cooperation project there, so I have been staying here until now... I came back because of an urgent mission." But the speaker has no intention, and the listener has the intention. Bodi, who was still a little tired, stopped feeling sleepy in an instant and stopped immediately. He is now very curious about all companies that cooperate with China. Of course, we are not the same company...or even from the same country, so Bodi will not ask others for details of cooperation. I just took advantage of an opportunity to introduce myself: "Hello, I''m Tim Purdy, Deputy Director of Projects at Rolls-Royce. Nice to meet you." It was a normal topic, so Kasore didn''t take it too seriously and just continued chatting with the two about harmless topics. But Bodi came with a purpose in mind, so naturally he couldn''t stay here doing oral gymnastics with him all the time. So after some pleasantries, he had no choice but to choose a slightly more radical approach: "Dr. Casore, I thought I heard just now that you just came back from China?" The latter has a background in military aircraft, so he is so sensitive. I instantly realized that the other persons change of topic was a bit abrupt and there must be a pitfall behind it. Dassault has a cooperative relationship with China, which is almost a public matter. But the specific details of cooperation cannot be disclosed casually. So, he nodded: "Yeah, go over there and purchase some secondary aviation materials... You know, these things are not very demanding, and there is a cost advantage over there." Hearing that the other party was also looking for Chinese people as secondary suppliers, Bodi was slightly relieved: "really" He nodded and continued: "To be honest, they have developed rapidly in recent years, but it is a pity that there is no market suitable for our Rolls-Royce..." As the deputy director of research and development of the Trent 900, when Bodi said there was no market, he naturally meant that there was no aircraft in China using Rolls-Royce engines. In fact, this was completely unintentional and just ended the topic about China. But Champine next to him obviously got the wrong idea. After hearing these words, he lowered his head, looking thoughtful. Until Bodi left, he was still a little bit distracted. "Tim." After a period of silence, Champion suddenly raised his head and looked at Bodi: "I wonder if you have any plans to develop a new engine with a thrust of about 12-14 tons, suitable for short- and medium-range passenger aircraft?" This sudden question made the latter a little confused. After thinking about it for a while, he asked: "You mean...for passenger aircraft like A320 and 737?" "right." Bodi''s expression became even more confused: "But...we already have the V2500 series?" Strictly speaking, the V2500 engine is a model developed and produced by International Aero Engines (IAE). Similar to the Engine Alliance Company that developed the GP7200, it is also for this dish of vinegar-wrapped dumplings. The company is a joint venture between Pratt & Whitney, Rolls-Royce, MTU, Fiat and Japan Aerospace Engineering Corporation. Its only product is the V2500. Although this means that there will be many companies to take a share of the pie, but judging from Rolls-Royce''s business distribution, it is obviously impossible to independently develop a product with duplicate positioning. But Champine shook his head mysteriously, came closer and lowered his voice: "We are planning a new generation of A320 passenger aircraft for 2010 and beyond. The core goal is to reduce fuel consumption by 15% and carbon and nitrogen oxide emissions by more than 20%... The V2500 is based on thirty years ago and cannot meet the requirements in any case. requirements, so a new motivation must be needed..." Bodie''s eyes shot open. This is incredible news. The 80-ton mainline passenger aircraft is conservatively estimated to be a trillion-dollar market. Any piece of cake here can affect the pattern of the world aviation industry. When the V2500 was determined to be eliminated early, Rolls-Royce had no experience in developing engines of the same level. If you dont get the news today, you will definitely fall behind the two main competitors in the future: "I''m afraid I have to report this to the board of directors after I go back..." Champin nodded slightly, and then ordered: "Since I can tell you this, it means that the demonstration stage is almost over, so you must act quickly... If it doesn''t work, you can also find other companies to cooperate in research and development." But Bodi opposite was a little worried: GE has the most experience in this level of engines, and coupled with the unhappiness caused during the previous cooperation with Snecma, there is a high probability that it will not accept any joint research and development plans... and Pratt & Whitney is also in the development of V2500. The profits are huge, and I have long had the idea of ????going it alone..." "It depends on how you decide..." After all, Champine is not from Luoluo. For this reason, he has done his best to be kind and righteous: "In short, if you miss this time, you may not have the opportunity to re-enter this level of market in the next 20 years..." (End of chapter) Chapter 1129 Do as I say first Chapter 1129: Do as I say first Champine''s words are definitely not alarmist. Currently, the main mainline aircraft models currently being operated by major airlines are basically Boeing 737NG and Airbus A320ceo. They are not two specific models, but two generations of a series of aircraft. And they are all facing the problem of falling behind the times. Although the Boeing 737NG is called the "next generation", it is essentially a limited improvement of the second-generation 737. Moreover, it is not an active improvement. It was in the early 1990s that it was hit by the A320 and had no choice but to undergo a wave of repairs. According to Boeing''s plan, after 2010 at the latest, the Y1 model in the Yellowstone plan, which has the same technical level as the 787 (Y2) and is newly designed, will be put on the market. The 737NG is essentially a temporary transitional model. As for the A320ceo CEO is originally the abbreviation of Traditional Engine (CurrentEngineOption), and it has not been seriously replaced in 20 years. Originally, if it were just two strong powers competing, it would really be possible to achieve a balance of power in this situation. That is to say, everyone just makes do with it and sees who can''t stand it any longer first. However, around 2000, Canada''s Bombardier Aerospace Company suddenly jumped out and said that it would develop a brand new C-series passenger aircraft to form an "ABC" competition with Boeing and Airbus. Although it is nominally a regional aircraft, the first model of this C-series series is 120-130 seats, which covers the business scope of Airbus A319 to a considerable extent. In fact, in the original timeline, due to limited investment and lack of determination, the research and development of this C series was intermittently, and it was not until 2008 that a relatively complete plan was developed. But now, perhaps driven by the idea that "if China can do it, I can do it," Canadians are very ambitious and move quickly. By early 2004, the C series had been put into a basic framework. And because Bombardier has long been involved in various passenger aircraft research and development projects and is a Western company, its experience and external conditions are much stronger than those of China. The performance of its newly designed aircraft is far better than that of two old guys who are patching things together. I actually got orders for dozens of them. Some of them even come from airlines that used to only use Airbus. Now, the Europeans can''t sit still. You know, it was Boeing''s attitude of ignoring the development of Airbus that allowed the latter to become bigger, and now it is even looking to replace it. How could they make the same mistake again? Therefore, it is imperative to completely upgrade the A320. Once an aircraft of this level is replaced, it is likely to last another twenty or thirty years. For an aviation engine supplier to remain invisible in the most mainstream market for such a long time, it will definitely bring extremely high risks. Therefore, Bodi''s expression immediately became serious: "I will try my best to convince the leadership to allocate resources in this direction as soon as possible..." From a technical point of view, it is indeed much easier to build a smaller engine after having built a larger engine. But specifically at the business level, if you dont have enough time or funds, it will be difficult to compete with friends who have more experience. Suddenly, the roar of the aircraft engine came from far away, interrupting Bodi''s thoughts. The A340 had completed all the test tasks planned for this flight and appeared in mid-air toward the end of the runway. "Speak of it, Charles." Bodi changed the subject: "What''s the current progress of the first A380 prototype?" "The body parts will be assembled soon. Our plan is to make it public to the world next month, roll off the factory before the end of the year, and make the first flight early next year..." at the same time. At the Dassault Toulouse factory, a little further from the airport. After bidding farewell to the two of them just now, Didier Casore didn''t bother to take a break, and almost non-stop found the head of the production department, Shamussen Bain. The latter was currently busy improving the production capacity of two new models of Rafale F2 and Falcon 8Z. It was not until Casore tapped him on the shoulder a few times that he noticed the other party''s arrival. "director?" The confusion on Bain''s face has not yet disappeared. Casore was a little helpless: "I informed the headquarters last week that I was going back to China...didn''t anyone notify you?" Hearing this question, Bain was stunned for a moment, then raised his head and glanced at the calendar next to him: "Uh... I have been solving a process problem on the Rafale F2 production line these days, and I may have made a mistake in the date." As he explained, he rolled up the drawings on the table and pushed them aside: "I remember you said that there are new production tasks to be handed over to us?" Seeing him looking like a workaholic, Casore didn''t have much to say. He just took a computer bag from the entourage behind him: "Yes, it is also related to Falcon 8Z..." As he spoke, he quickly took out his laptop and turned it on: "The brand-new process cannot be solved by the assembly level of China, so we need temporary help." Obviously, he completely believed the reasons that Liang Shaoxiu had spouted before. However, Manager Bain on the opposite side frowned slightly and seemed a little unhappy: "The new factory has put into production two new models at the same time, and the production line operation situation is already very tight... If the production plan is temporarily changed, I am afraid it will affect the entire production plan..." Casore had just finished entering the power-on password, raised his head and explained: "This matter has a high priority, and the number of components is very small, so the impact will not be great." "But supervisor, any new process requires a lot of testing to determine the parameters before it is put into production. This has nothing to do with the output... Rather, a small output will be more wasteful." There was a hint of confusion on Bain''s face. In his opinion, although Casore has worked in the design department for many years, he should not ignore such low-level problems. "Most of the parameters have been determined...we just need to debug the equipment according to the actual situation." Having said this, Kasore turned the computer screen and pushed it in front of Bain. The above is a complete assembly process description. "The skin radius is 2723mm, the arc length is 300mm, and the total length is 630mm. Positioning surface 1 constrains the degrees of freedom in the X, Y and Z directions, and positioning surface 2 constrains the two degrees of freedom in the X and Y directions. It is divided into 25845 units in total. Type is shell element "The specifications of the long truss are 42.3mm*30.0mm*630mm, and the positioning point 1 constrains the two degrees of freedom X and Z..." In addition to the somewhat blunt text description, it also thoughtfully comes with assembly model diagrams and a summary table of operating parameters. In short, even if you only look at the first two pages, it doesn''t look like a "new craft" at all. Instead, it seems that it has been studied for a while and was just used for trial production... Bain glanced at Kasore with some suspicion: "With such a large-sized pre-connection process...the yield rate may not be guaranteed." "Don''t worry, then look down." The latter replied: "Besides, if it wasn''t difficult, they wouldn''t come to you." Production line management capabilities and worker technical levels have always been the two strengths that Bain is most proud of. Now that he was suddenly put on a high hat, it was a little inconvenient for him to refute, so he had to lower his head and return his gaze to the computer screen. "The pre-connection sequence between units: 11-12-13-14-15-21-22... The pre-connection path distance is 10567mm, the pre-connection points of unit 1 are set to 13, 6, and 20, and the pre-connection forces are 39N, 44N and 43N, three-dimensional coordinate value (90, 23, 160); unit 2..." Bain''s expression gradually became serious. As an experienced engineer who has worked on the production line for more than 30 years, he quickly realized that this assembly process was not like the past, which only provided broad-based guidance and required production personnel to adjust specific operating methods according to the actual situation. The number, location and order of connection points are determined from the beginning. But the problem is that even different individuals of the same model will have deviations and deformations during the production and assembly process. So in the past, this was determined based on experience by skilled workers. This is also the fundamental reason why the aircraft production process has not been fully automated for a long time. The current model seems to reduce the burden on the production line, but it is equivalent to piling all risks into the final assembly process. "Supervisor, are you sure..." Bain just started, but Kasore didn''t let him continue. The latter actually has no idea, but right now there is really no better way: "Do as I say first. As for the final situation... we will wait until the product is off the production line!" Although the two parties have the same administrative level, when it comes to business relationships, Casore, as the deputy model manager, has the authority to guide the production side of the work. Therefore, when he finally made his decision, Bain did not continue to bargain: "Then I''ll convene a meeting with the production line engineers right away." "But it''s best for you to explain the specific situation to everyone..." (End of chapter) Chapter 1130 Assembly, something went wrong? Chapter 1130 Assembly, something went wrong? Bain''s request, in addition to the objective factors that he himself is not very clear about the situation, is also a subjective consideration to avoid being pulled out to take the blame if something goes wrong. Although he considers himself to be a relatively simple engineer, since he managed to get into the position of production department manager, he must be wise in protecting himself. Otherwise, they would have been pushed out long ago. "no problem." Of course, Casore knew what the other party was thinking, but he still nodded: "Just gather everyone together." Now, there is no time to talk nonsense. And no matter what, the modification work of the early warning aircraft will still have to be carried out in China. Even if there is a problem with this process, the worst result is just to return to the original schedule and waste some man-hours. He can still carry it. Soon, a dozen production line engineers were quickly gathered in the conference room. At almost the same time, the secretarys office had also prepared the required paper materials Even in the 21st century, pen and paper are still better to use than screens and projectors in many cases. Due to the tight time schedule, the drawings brought back by Casore did not have time to be completely revised according to French customs. They only forcibly translated some necessary annotations based on the Chinese version. Fortunately, China''s own aviation manufacturing standards are highly compatible with Europe, so there will be no hardware troubles during the manufacturing process. If this was done in cooperation with Boeing, just the conversion between metric and imperial units would make people peel off a layer of skin. "There is an urgent order now, which requires the factory to temporarily adjust, jump in line to produce a batch of skins and trusses, and then pre-assemble..." As one of the main designers of the Falcon Z project, Casore is no stranger to these school leaders who are equivalent to foremen. So he even skipped the process of self-introduction and went directly to the drawing board with the drawings hanging on it to get to the point: "Time is tight, let me talk about the subsequent production and assembly process..." Just the explanation of the first step of the production process took more than two hours. It''s not that Casore is unwilling to speed up, it''s that the plan given by Liang Shaoxiu is too detailed. It is no exaggeration to say that if the assembly process is not so delicate and cumbersome that current industrial robots cannot perform certain basic actions, then a considerable number of these tasks can even be completely performed without manual labor. Such demanding and meticulous requirements were not so easy for the production engineers present to accept These people all rely on first-hand experience. Now that you have fixed all the areas that require free play, aren''t you using them as apprentices? Of course, we are all workers, and we cannot openly refute the leadership''s instructions just because of this. Especially "foreign" leaders like Kasore. But if you don''t say it openly, it doesn''t mean you don''t have thoughts in your heart. After the meeting, everyone returned to the production line, preparing to adjust production work according to the tasks just assigned. As their direct leader, Bain was still quite responsible for work matters even though he had just taken away all the responsibilities. Soon he and Kasore came to the workshop. One is to supervise work as usual. Secondly, I really want to see if this set of heaven-defying craftsmanship that Kasore pulled out from nowhere can work? However, before the two of them took a few steps, an engineer came over with production instructions: "Manager, supervisor." "Based on my experience, if the above process and parameters are followed, then during assembly, the unit 17X far away from the positioning datum is likely to be pre-connected before the unit 16X close to the positioning datum. In this way The gap between the two units prevents flow out of the interior of the unit, causing the siding to buckle "Can you please explain in detail the reasons for this arrangement?" The other party''s tone was very polite, and what he said was very specific, and there was no fault at all. But no matter how you look at it, it seems like you are taking the opportunity to make trouble. Casore took the instruction manual from the engineer''s hand. On the surface, he looked as calm as an old dog, but inside he was panicking. Because he doesn''t know either. After all, Dassault and the Aerospace Power Group are only cooperating, not merging. It would be good if someone else can fully demonstrate the new process flow. Can he still directly ask the other party what your design and process optimization methods are? He would have to be kicked out as a commercial spy. But now he has attracted a lot of attention from around him, which is equivalent to being roasted on the fire. If he doesn''t say anything, or uses force, then it may not be easy to carry out the production. Therefore, Kasolei had no choice but to bite the bullet, recalling some of the few words Liang Shaoxiu had revealed before he left on this trip, combined with some of his own speculations, and started to make nonsense: "Compared with the original model that used a higher proportion of carbon fiber, the back skin of the AWACS version is entirely made of lightweight alloy, and the material properties are easier to predict, so the initial gap between the pre-connection of each unit and the adjacent units can be calculated before assembly The influence produced, thereby constructing the pre-connection sequence model between units and the calculation model of gap flow..." "As for the wrinkle problem you just mentioned... On the premise of meeting the allowed pre-connection gap, a margin has been left in advance by optimizing the number, location and sequence of pre-connection points, which can maintain a relatively loose relationship between the units. status What he said was not entirely false. It''s just that some of them are too big. It''s equivalent to "putting an elephant in the refrigerator is a three-step process: open the refrigerator door, put the elephant in, and close the refrigerator door." Correct, but of little practical value. In fact, the core of the entire pre-connection solution is the establishment and solution of the pre-connection process expression. Casore, however, avoids both parts entirely. Fortunately, the theoretical foundation of the front-line engineers was limited after all, so they were still stunned by the large paragraph above that was similar to Guankou. Although I instinctively felt that something was wrong, I couldn''t find any well-founded objection. He just frowned slightly and returned to his work. Kasore, who finally breathed a sigh of relief, was afraid that someone would see his guilty conscience. After wandering around for a few minutes, and after making sure that all the production teams were in working order, he made an excuse at the speed of light and left the production workshop. It must be admitted that under Bain''s leadership, the production efficiency of the Toulouse factory is indeed considerable. It only took three days to produce all the components that needed to be pre-connected. The remaining task is to assemble according to the requirements of the process instructions. If nothing else happens, the first completed large component will be sent to China in about two days. However, just when Kasore thought he could breathe a sigh of relief... On the afternoon of the first day of assembly, Bain rushed into the temporary office prepared for the former like a gust of wind. There was no time to even knock on the door. "Supervisor, something went wrong on the assembly line!" One sentence almost made Kasore jump out of his chair. After a brief period of mental blankness, the first thing that came to mind was the question that the engineer asked him before: Isnt it true that the siding is wrinkled? The biggest problem with pre-connection is that it affects the whole body. Once the wall panel buckles occur, it will directly affect the mechanical balance within the skin and girders, causing all or most of the assembled parts to be scrapped. "That''s not true." Bain shook his head: "Anyway... you''d better go and see for yourself." Casore moved quickly, and within two minutes he followed Bain to the No. 1 station in the assembly workshop. Then, I saw a heart-stopping scene. As he said before, the units maintained a relatively loose relationship. But the problem is, it''s too loose - The two sets of skins that were supposed to be spliced ??together turned out to have a gap about **** wide in the middle! In other words, they are not connected at all... (End of chapter) Chapter 1131 Shake someone to help! Chapter 1131: Ask for help! In the huge workshop, no one spoke. Kasore didn''t even need to look back, he could feel a dozen scorching eyes from behind staring at him. The first is to wait for him to make a decision. Second time... It is inevitable that there will be the intention to watch the fun. After all, it was you who vowed to make all the big parts first and then concentrate on pre-connecting them, and there would be absolutely no problems. And now, this three-centimeter-wide gap is right in front of you, how do you explain it? No face left.jpg Therefore, in just a few breaths, Kasolei felt like he was breaking out in a cold sweat. In fact, before he returned to France, the two sides also discussed whether to send a team of Chinese engineers to accompany him. However, from China''s perspective, the entire process flow was designed by Liang Shaoxiu himself, and he even received some help from Chang Haonan during the process. It is impossible for these two people to move away under any circumstances. If you send other idle engineers, it will not solve any practical problems. From Casore''s point of view, he doesn''t want to behave too much in front of his partners, so he hopes to return to China alone to complete the production tasks. Therefore, this matter finally came to an end. But now, Casore has never felt more regretful. The result of insisting on saving face is that you will lose even more face in the end... Fortunately, he has experienced many battles and has seen a lot. Although he was extremely remorseful in his heart, he still acted like "everything is under control" on the surface. While he came closer and pretended to check the situation, his brain was running rapidly, thinking about whether there was any remedy. After a few minutes, Kasore finally calmed down. Although I hate to admit it, the fact is that in the past few years of cooperation with the Chinese, whether it was Rafale fighter jets or Falcon 8Z business jets, the other party had never made any particularly serious mistakes. Therefore, the first thing he thought of was whether there was something wrong with the factory. "Ciel, show me the production log." Kasore turned around and ordered as calmly as possible. Of course, a serious factory cannot mess around like a small workshop. Every step of operation must be recorded accordingly. "Here." Bain took out the materials he had already prepared. In fact, he had already checked the contents of the log. After confirming that it was correct, I went to find Kasore. Sure enough, the latter read it from beginning to end twice and found no problems. And if nothing goes wrong at the operational level... "Supervisor, can you determine where the problem lies?" Someone in the crowd behind asked appropriately. It''s hard to tell whether the heckling was intentional. Cold sweat flowed down. But just when Kasore could hardly get off the stage, another voice suddenly came: "Supervisor, the width of this gap from top to bottom is almost exactly the same. In fact...it doesn''t seem to be caused by deformation of parts or flow of gaps." This sentence instantly awakened him. For parts with different specifications and locations, the allowance calculated before pre-connection is also different. If there is a problem at the design level, it should be an uneven situation. Unless a constant is omitted during the calculation And this is obviously a bit outrageous. Kasore turned back gratefully. But he discovered that the engineer who had just rescued him was the engineer who first asked him questions a few days ago... For a moment, Kasore''s heart was full of mixed emotions, and he didn''t even know what to say. It wasn''t until about half a minute later that he spoke again: "I''m going to report the situation to the design team. After all, it''s the first time to apply a new process, so it''s normal to have some problems... It shouldn''t be difficult to solve." In the evening French time, the corresponding capital time is exactly noon. Therefore, the explanation of Kasolei''s situation was almost immediately placed on Liang Shaoxiu''s desk. Looking at the photo in front of him, the latter only felt that his eyes were a little dark. The reason why he gave this job to the French was to use this opportunity to conduct a technical verification and dig out the hidden dangers in the entire technology. But the hidden dangers that Liang Shaoxiu had thought about were that the tolerances were found to be relatively large during assembly, or that the strength did not meet the expected standards during testing. At most, it can be solved by manual rework. But I never thought that the problem could be so big. When Casore took the photo, he was afraid that there would be no reference object, so he specially inserted a vernier caliper. Although I cant see it clearly due to pixel issues, it must be about 2.8 centimeters anyway. This is definitely not a problem that can be solved by hitting a hammer or changing the position of a few pre-connection points. There must be something wrong with every preset unit, and finally it was concentrated and reflected on this crack. What''s more troublesome is that because he was not at the scene, he could not conduct a more detailed analysis. As for the ideas Casore proposed... He first said that he had checked the logs and it was unlikely that there was a problem in the production and processing process. I also think that the gaps are too smooth and neat, and it doesnt seem like a problem in the design process... It was as if it had been said. Looking at Liang Shaoxiu with a gloomy expression, Ma Lin, the deputy chief designer sitting opposite him, tentatively suggested: "Mr. Liang, based on my front-line management experience in the workshop, the production log cannot be fully trusted... If you want to fully understand the problem, I''m afraid you need to have the assembled parts disassembled and check each parameter and design one by one. Are the requirements consistent..." This generation of aircraft designers in China are very experienced in solving production problems. After all, all the way up to Project No. 10, we had suffered big losses in this regard. It was the accident that almost destroyed an AL31FN that made the aviation industry system determined to vigorously rectify non-compliant operations in the production process. Its only been more than five years now. As for Liang Shaoxiu, who was born in a small factory, he knew all these things clearly. But if you really follow what Marin said, the inspection alone will take almost half a month. It was a major blow to the entire "Gaoming" project. It would be fine if it were left to normal. Anyway, the backup plan is always kept, so it is not a waste of money. But now is a critical juncture to compete with the Kingdom of David and prepare to steam buns or not. If his crotch is pulled, Liang Shaoxiu will not be able to get through it even if his superiors don''t say anything. After thinking for a long time, he leaned forward and picked up the receiver of the red phone from the corner of the table, and then dialed a three-digit extension number. "Hey, Xiao Liu, help me make arrangements..." At this point, Liang Shaoxiu''s voice suddenly stopped. On the other end of the phone, a confused and anxious voice came: "Mr. Liang?" When the second call came, Liang Shaoxiu came back to his senses: "No need for now, just get busy." After saying that, he pressed the off-hook button at the speed of light and dialed a longer number. About ten seconds later, the call was connected. "Hello?" The person on the other side of the phone was naturally Chang Haonan from Haofa Group. Coincidentally, he had just returned to the office from a round of testing, and before he even had time to drink, he heard the intercom phone ringing. "Hello, Mr. Chang, it''s me, Liang Shaoxiu." Although there was a phone line between them, Chang Haonan still heard that the other party''s tone was not right: "What''s wrong?" Liang Shaoxiu''s answer met his suspicion: "Something went wrong in the pre-connection process of the back panel unit..." "The production at Dassault was really fast, but during the assembly process, it was discovered that the numbers between the units did not match, and there was a gap slightly less than 3 centimeters..." "The safest way now is to dismantle them all and recheck the production status of each component, but I would like to ask you... if there is any better way. I have sent the situation report to you..." Obviously, this is coming. However, even Chang Haonan cannot analyze the cause and solution of the problem just by listening with his ears. So as he spoke, he quickly opened his internal mailbox. "Don''t worry. I''ll take a look at the specific situation. Tomorrow at the latest..." Chang Haonan originally wanted to say that he needed a day and would give an answer tomorrow. But at this moment, he happened to see the picture attached to the report. "OK" Liang Shaoxiu was already ready to hang up the phone. "Wait a minute, don''t hang up yet!" Chang Haonan quickly shouted to the other party to stop the call. "Tell Dassault to change the positioning method from N-2-1 to N-1-2, and then try changing the bandage clamping direction from horizontal to vertical." (End of chapter) Chapter 1132 Engineering no longer exists Chapter 1132: Engineering no longer exists Chang Haonan''s sentence is really a bit too short. So that before Liang Shaoxiu put the receiver to his ear, he had already finished half of his words. He didn''t hear clearly at first, and he couldn''t react in his thinking, which caused the latter to freeze in place for a while. After being silent for a while, he asked in confusion: "This...is it over?" The so-called N-2-1 and N-1-2 refer to the fact that the skin unit needs to rely on three discrete positioning points for auxiliary positioning before clamping during the pre-connection process. The first number represents the inner surface of the wall panel (the number of different skins varies greatly, so it is N), the second number represents the arc direction of the wall panel, and the third number represents the heading of the wall panel. After the skin unit is positioned, the long truss can use one end of the skin''s heading positioning point as a reference, and the remaining degrees of freedom can be constrained through the fixture. But for the entire processing process, this is really an inconspicuous detail. Basically a default mitigation. And it is generally believed that the specific method of three-point discrete positioning will only affect the operation process and will not affect the specific positioning effect. Therefore, it is not even part of the industrial standard, but is determined by each manufacturer based on their own habits. The relevant content was not noted in the hastily translated production document. But Chang Haonan almost... saw it in just a few seconds? "In traditional processes, the arrangement of anchor points does not have an impact on the assembly process." Chang Haonan answered while looking at the follow-up content of the situation statement on the screen: But because we leave both the deformation allowance and the gap release margin during the processing, and there is basically no gap flow between the arc units of the wall panels, we need to allocate higher priority in the direction of the direction. Anchor point "When I was designing, I conveniently set it to N-1-2 according to our habits. If the French habit is to use N-2-1, it will lead to errors in the course positioning." Liang Shaoxiu was also staring at the picture in front of him at this time. But even if he tried his best, he really couldn''t establish the same brain circuit as Chang Haonan: "No...is there no other possibility?" Although the latter analysis is very reasonable, it is well known that induction and deduction are not substitutes for each other. More importantly, this made Liang Shaoxiu feel a little stupid. However, when I think that the other party is the founder of this set of technology, and I am just more proficient in applying it, it seems not so unbalanced... "I can''t say there''s none at all." Chang Haonan smiled and replied: "But if it is due to other reasons, whether it is a calculation error or a production problem, the problem should be in both the heading and the arc direction." "But if you look at the photos they sent, there is a gap as neat as laser cutting in the course, but the arc is very complete and fits perfectly...so it is most likely the reason I said." Liang Shaoxiu was speechless. After adjusting the positioning point layout, the bandage clamping direction will definitely change accordingly, so there is no need to ask again. "All right" He took out a pen and quickly wrote down what Chang Haonan had just analyzed on the side of the report. Fortunately, the A4 paper is large enough, so there is no problem like Fermat''s. After hanging up the phone, Marin, who had been sitting opposite, finally couldn''t restrain his curiosity and hurriedly came over: "Mr. Liang, does this mean...it has been resolved?" He could only hear Liang Shaoxiu''s voice just now, but the latter was shocked by Chang Haonan as soon as he came up, and he couldn''t even finish a few sentences. I really can''t hear the final result. "yes" Liang Shaoxiu flicked the report in his hand: "It''s Academician Chang after all... I just took a look at it and initially judged the problem, and also gave me a solution." Although he already felt that Chang Haonan''s method was sure of success, it was still not easy to open the champagne for the opponent at half-time in front of outsiders. So there is still some room left. While talking, Liang Shaoxiu took out a piece of manuscript paper, scrawled two lines of words on it, and then handed it to Ma Lin: "Go quickly and send this content to Dassault!" Meanwhile, Toulouse. After Casore said he was going to report the situation to the design team, all the engineers on site temporarily put aside their work and packed up to get off work. In fact, even Kasore himself, after sending the message, was ready to take this opportunity to relax and adjust his tense mood for many days. "Char, I remember you said a few days ago that there is a good restaurant near here?" After returning to the office, he put on his coat and asked Bain behind him. "Yeah... I just have time today, we can go there together..." It was actually about half an hour before he got off work, but he had worked overtime in the past few days and was now unable to work, so he didn''t mind leaving early. However, just when the two of them were ready to run away and catch fish, the liaison officer who had just been responsible for sending the message hurriedly came to the door. "Supervisor, manager, we just received a reply from China." Kasore was stunned for a moment, then noticed that the other party only held a piece of paper in his hand, and then he realized: Just one page. Moreover, less than an hour had passed. It was obviously a polite reply. For example, if the situation is known, a reply will be made within x working days. "You can just put it on my table." He gestured to the liaison officer. At the same time, the movements of his hands did not stop, and he had already begun to put on his scarf. The latter was just a regular worker and didn''t think much about it. He put the official paper on his desk as required. Almost subconsciously, Casore glanced over there out of the corner of his eye before putting on his hat. Then... "Huh?" His hand holding the hat stopped in mid-air. There was indeed only a short sentence written on that piece of paper. But it wasn''t the routine reply he expected. But with content... [Please change the positioning method from N-2-1 to N-1-2, and change the bandage clamping direction to longitudinal] Kasore shuddered violently. "What''s wrong?" Not far away, Bain was ready, just waiting to set off with Kasore. But the latter did not answer immediately. Just hung my hat back. Then came scarves, windbreakers "Quick, gather the engineers." After returning to his work attire, Casore picked up the piece of paper and walked outside in a hurry while giving instructions: "The solution has been sent." Bain: "???" It''s not just Bane. When more than a dozen field engineers heard Casore read out the contents on the paper, their first reaction was also - Are you just having fun? After looking at each other for a while, the same engineer from before stood up as a representative: "Just... these?" In fact, Casore was a little unsure, but he knew that at this time, he must not show any hesitation: "right." This is the smallest change of several options that might work... We dont even have to re-produce any parts, just adjust the pre-connected frame and the anchor points on each skin unit, so its worth trying it out first. " The following content was naturally made up by him on the fly. But at first glance, it really sounds like that. Although the technicians felt that it was a bit out of tune, as Casore said, the adjustment range of this plan was very small, and even if it failed, it would only be a waste of a few hours. Even more, because the pre-connection process itself can be automated, there are even fewer parts that actually need to be done. As a result, the entire workshop quickly became busy again. Engineers are already familiar with this set of operations. Just twenty minutes later, the skin paving machine restarted and started creaking on the pre-connected frame... "Do you really think this is feasible?" After an unknown length of silence, Bain came to the side and asked Kasore in a low voice. He had just seen what was written on the piece of paper and knew that there was no big paragraph at the end. "I''m... not sure." The latter sighed softly. Both of them are middle and high-level managers and do not need to hide much. "If such a big gap can be closed by just adjusting the positioning method, then I can only say..." Kasore''s expression was quite complicated. From a project perspective alone, he certainly hopes to succeed this time. But from the perspective of the world view, it seems reasonable to fail... "say what?" Beside him, Bain inquired further. "If it could really work, engineering would cease to exist..." "hiss-" Before Kasore''s words could finish, the crowd slightly ahead suddenly let out a collective gasp. The two of them followed the sound and found that there was already a wave of waves surrounding the pre-connected frame. Perhaps he noticed the gaze from the leader behind him. More than a dozen people spontaneously split into two, giving them a piece of vision. For a moment, Kasore''s eyes widened slightly According to the assembly sequence, the first row of skin units of the heading has been assembled in place at this time. But the three centimeter-wide crack just now has disappeared. The entire wall panel attached to the long truss fits perfectly! Looking at the scene in front of me. Kasore''s lips moved slightly, but no sound seemed to come out. Only Bain, who was closest to him, vaguely heard a few syllables: "Engineering... really doesn''t exist anymore..." (End of chapter) Chapter 1133 It’s for the Kingdom of David! Chapter 1133 is aimed at the Kingdom of David! Of course, Kasore''s words were just blurted out in extreme shock. And with a little bit of self-deprecation After all, the words he said before were still ringing in his ears, but he was severely slapped in the face by the reality in front of him. Fortunately, at this juncture, no one can bother to think about these details. Regardless, having the siding pre-assembled correctly is a good thing for everyone. According to this efficiency, the production speed of the back structural parts of the early warning aircraft can be more than doubled, thereby saving several months and avoiding falling too far behind the progress of the David Kingdom. Soon, amid waves of exclamations and cheers, the paving machine completed all the planned paths and accurately "embedded" all the skin units on several long longitudinal girders. Although the bandages used for clamping will need to be removed later and the overall strength will be further strengthened, the shape of some of the aircraft bulkheads can already be seen in this way. Specifically, this section is finished with pre-attached siding that has a notch in the lower right corner. That is the space reserved for installing phased array radar. This is also the most obvious difference in body structure between this aircraft and general business jets. Several engineers gathered around the pre-connected frame again and controlled the crane to slowly lower the formed product. As for Bain, who was standing next to Kasore, his eyes were already shining: "Director, I want to learn this." "Ah?" The former was still in a state of mental relaxation after a mixture of shock and ecstasy. He turned his head in confusion after hearing the sound. Bain thought that the former did not understand what he meant, so he quickly explained: "I mean, this pre-connection process is very good... If it can be used in the production of Rafale F2, then the production capacity problem we are facing now will be alleviated a lot." After the M88-3 engine test was completed, the French Navy and Air Force quickly launched their respective replacement plans, preparing to unify all old models such as F8F, Mirage 2000, and Mirage F1 into Rafale B/C and Rafale M. Coupled with purchase orders from Egypt and Brazil, the total production volume will be no less than 300 aircraft. It is definitely a big challenge for the new Toulouse factory that has just been completed and put into production. In fact, before Kasore came here this time, Bain had been losing his hair because of this matter. But facing the eager eyes of his old colleagues, Kasore couldn''t help but look embarrassed. In order to save some face for himself, he has always said that he needs to communicate with the "design team". But I didn''t say that the design team is all Chinese. so Shut up, I want to learn too.jpg However, Bain didn''t know this situation and just continued to say: "In addition, the demand for fighter jets and business jets is not huge after all, but I asked specifically before that the backlog of orders from Airbus next door is thousands... If we can use this pre-connection process on passenger aircraft, then It may even be possible to eat the cake of the mainline passenger aircraft market..." Compared with the huge scale of the civil aviation industry, the business of Dassault Aviation is indeed child''s play. In fact, Toulouse is said to be an aviation industry cluster, but when several other clusters are tied together, they are not even half as big as Airbus. It is impossible not to be jealous. Casore sighed leisurely and said: "Due to the process model, this technology can currently only be used on pure metal materials. Rafale M and Airbus aircraft have a large proportion of carbon fiber, so the accuracy of the calculation results cannot be guaranteed... If it is forcibly applied, the results may be Its really the same as before He said this, but he began to silently calculate in his heart whether he should steal lessons from Huaxia or directly introduce Huaxia into cooperation. The problem with the former is that even though Dassault''s design department had sufficient information, it still took about a year and a half to barely understand the wing structure designed by the Chinese for the Falcon 8Z. This pre-connection process is not within the scope of exchanges between the two parties. It will be difficult to achieve results within four or five years just by stealing it. But if you choose the latter, there are also risks. Airbus provides design and production, and China is responsible for providing key processes. What about Dassault? He can only play the role of matchmaker. As long as the other two parties are not as individuals, they can leave Dassault alone and do it themselves. But if they do nothing, the Chinese people will realize the value of this technology sooner or later. With the speed they are entering the European market, it will only be a matter of time before they get involved with Airbus... This dilemma gave Kasore a headache. In the end, he had no choice but to put aside his distant worries and deal with the things in front of him first: "Everyone, we will process this part of the prefabricated siding as soon as possible. The customer is still waiting for urgent use..." After some twists and turns, Kasore realized that he had not informed the Chinese side of the good news. So I quickly found the correspondent who was forced to work overtime, and re-sent the situation after changing the steps to Liang Shaoxiu, together with a photo of the semi-finished product that was only short of final processing. At this time, Chinese time has also arrived in the evening. But Liang Shaoxiu had no intention of leaving the office. By now, no matter how much he regretted not sending a liaison officer back to France with Casore, it was already too late. I had to sit still and wait for news from France. He is very clear about the efficiency of the fully automatic skin laying machine. Regardless of success or failure, he should be able to see the clues within a few hours. "Even a Frenchman wouldn''t just leave work and leave under such circumstances, would he?" After getting up and pacing for an unknown number of times, Liang Shaoxiu began to curse with resentment in his heart. Fortunately, at this time, a familiar rhythm of footsteps came from the direction of the corridor... "Mr. Liang!" Before anyone arrives, the sound has already arrived: "It''s solved, everything is solved!" A few seconds later, Marin appeared at the door of the office with every button of his shirt unbuttoned. Although Liang Shaoxiu had confidence in Chang Haonan''s level before, when the result was finally settled, he couldn''t help but feel a burst of joy in his heart. He tried his best to suppress his overly exaggerated expressions and movements. Only the obvious curve of the corners of his mouth revealed the turmoil in his heart... "Let me see!" Ma Lin thrust a folder into Liang Shaoxiu''s hands: "The report from Mr. Casore is that they have completed the preliminary pre-connection of the B7 wall panel, and the entire production process will be completed the day after tomorrow at the latest!" The latter quickly opened it. As usual, the first page is just a few words explaining the situation, and then there is an attached photo. It is not difficult to see that it is still the pre-connected frame just now. The same skins and girders as before. But this time, the connections between the units were airtight. If the first report hadn''t still been on his desk, Liang Shaoxiu would have even thought that the huge gap **** wide was a figment of his imagination... Especially after putting the photos in the two reports together, the visual differences are even more obvious. "It has to be Mr. Chang..." Liang Shaoxiu couldn''t help but sigh: "Any time you make a move, you will reach a height that is difficult for others to reach..." After being responsible for the research and development of multiple early warning aircraft models, he once believed that although his overall level was definitely far inferior to Chang Haonan, when it came to aircraft design and manufacturing, relying on the experience accumulated over the years , maybe there shouldnt be much difference. But the current facts show that although Chang Haonan has left the field of complete machines for many years, his skills have not retreated at all... Fortunately, Liang Shaoxiu had a good attitude and quickly regained his balance: "Marin, after you go back, check the production and assembly data of the next B8 wall panel. After making sure there is no problem, send it to Dassault." "good!" Marin nodded, and then added: "In addition, Mr. Liang, what Mr. Casore means is that if we rent the Beluga transport aircraft from Airbus, we can transport all the prefabricated sidings to us at once, but that aircraft is too eye-catching, so he Prepare to ship the products in batches on A340 cargo planes..." After listening to this, Liang Shaoxiu briefly calculated the project schedule: "In this way, you can ask Dassault to inform customers in the United Arab Emirates that we plan to go there between June and July to complete actual machine testing!" This sudden instruction completely surprised Marin: "June to July?" After a while, he realized: "Isn''t it easy to coincide with the test time of the Kingdom of David?" Casore has said before that IAI''s G550 "Sea Eagle" early warning aircraft is planned to be tested in May-June. It is impossible for both sides to compete on the same stage, so it will be a bit troublesome if the schedules overlap. "The Kingdom of David?" Liang Shaoxiu sneered: "I am targeting the Kingdom of David!" (End of chapter) Chapter 1134 It’s not that enemies don’t get together Chapter 1134: Enemies never get together The peaceful and anxious four months passed quickly. The sun, which is getting closer to the Tropic of Cancer, brings warm sunshine in early summer to the entire Eurasian continent. UAE, Abu Dhabi. Albatin Palace Airport. A twin-engine small plane with a slightly weird appearance, as if there were two tumors growing on the side of the fuselage, landed on the 3,200-meter-long asphalt runway. Although the approach was not very graceful due to strong crosswinds, a group of people on the tarmac in the distance still cheered and clapped. The one with the brightest smile is undoubtedly Shaul Mavita, who stands in one of the two middle positions. He is also the person in charge of the IAI bidding for this project. After two and a half months of high-intensity final assembly, followed by one and a half months of intensive test flights, the G550 "Sea Eagle" prototype finally lived up to expectations and successfully completed all test projects arranged by the UAE. "Your Excellency the Crown Prince," Mavita turned to look at Crown Prince Mohammed beside him, and said with full confidence: "These days, I think you should have a fairly good understanding of the performance of our early warning aircraft, but I still want to add some additional technical details that were not covered in your test..." "In addition to detecting air targets, the ''Sea Eagle'' can also monitor ground targets within a certain angle range. If you are willing to purchase a special upgrade, you can even use synthetic aperture radar to perform certain strategic reconnaissance missions, which is important for maintaining Peace and stability in the Gulf region are of extremely important significance..." It should be said that Mavita''s confidence is not without reason. According to the test results of these three days, the Sea Eagle early warning aircraft is not weaker than the 707 platform "Felcon" previously equipped by the Great Patriotic Air Force in terms of detection range, multi-target capability, command level, airborne time, etc. In terms of volume of less than 40 tons, it is undoubtedly a hero among early warning aircraft. The biggest shortcoming is that the radar field of view is limited, and the main detection range is only 120 left and right. However, this is a problem that small and medium-sized early warning aircraft cannot avoid, and the same is true for the other two competitors. Furthermore, the detection accuracy of L-band radar is not ideal. However, as a part of the remote early warning system, accuracy itself is not the core indicator of the early warning aircraft. The L-band brings a longer detection range, which can be actually shown on paper. In short, no matter how you look at it, its a big win. Even Crown Prince Mohammed, who had been very picky in the early and mid-term, just nodded with satisfaction after hearing Mavita''s explanation: "As for performance, I have read the report given by the flight engineer and there is really no other doubt." "But I still want to confirm that if you win the bid, then the delivery problem..." Hearing this, Mavita couldn''t help but feel a little thump in her heart. Fortunately, the crown prince stopped just in time and did not mention such an embarrassing topic as the ring project, which saved some face for both parties. But from the look in the other person''s eyes, it was not difficult for Mavita to see that this was what others were worried about. While mentally scolding the superior who caused this mess several times, he quickly explained: "This No. 01 prototype will be transferred into active service in our army after completing all tests. However, if your country finally finalizes the purchase of the Sea Eagle early warning aircraft, then considering that the date for making the decision should be at the end of the year or next year, then the 02 is currently being assembled. The machine can be delivered directly as ready stock..." In order to defeat the two enemies in this air-to-air contest, IAI has spent a lot of money. Since you know that you have a bad reputation in the past, just deliver the goods directly. There is no need to worry about this, right? However, the Crown Prince''s expression seemed unchanged from before. I dont know whether its because there is really no fluctuation in my heart, or because I have become accustomed to this expression during the training process as an heir. Just as the two of them were talking, the plane that had just landed had completed its deceleration and slowly drove onto the taxiway following the command. Crown Prince Mohammed also changed the subject: "Mr. Mavita, as usual, we have arranged a dinner in the VIP reception hall. Please come and join us with other members of the delegation..." Before 1982, it was an international airport fully open to the outside world. However, after the larger and more advanced Abu Dhabi International Airport was put into use, it was transformed into an airport dedicated to business jets that is quite rare in the world. Specializing in serving the official fleet of the United Arab Emirates, as well as various wealthy and respectable bosses. Therefore, it is naturally impossible for relevant supporting facilities to be left behind. As for why we chose such a place as a testing base... Firstly, there are no foreign troops stationed here and it is not a civil airport, so it is relatively quiet. Secondly, it is more important. Al Batin Palace Airport is not directly managed by the UAE Air Force, but by the royal family. This matter is rather complicated. Although the United Arab Emirates covers an area of ??only 83,000 square kilometers, less than one-fifth the size of Tongliao, as a "United Emirates", its country has long been in a de facto feudal state. Not only do each emirate have great financial and administrative freedom, they can even form their own armies. For example, the UAE Air Force has long been composed of two completely independent armed forces, the Dubai Air Force and the Abu Dhabi Air Force. This abstract organizational structure has huge problems in daily operations, let alone fighting. So by the end of the 1990s, the two were finally merged under unified command. However, due to the merger, the differences between the two parties will naturally not be resolved in such a short period of time. Including the UAE''s abnormal large-scale purchase of new combat equipment in recent years, there is also a lack of considerations to balance the balance of power between the two sides. As for a big job like the selection of early warning aircraft, no matter which base in the sphere of influence is arranged, the other side will obviously not be satisfied. In the end, the royal family had to intervene directly. The three types of early warning aircraft that happened to participate in the bidding were all based on business jets as modification platforms, so Albatin Palace Airport naturally stood out from the few options. Professional counterpart belongs to yes. Soon, a group of dozens of people arrived at the splendid VIP reception hall under the leadership of the staff. In fact, Mavita always believed that since she had been living in Europe for more than ten years, she could be considered a member of the upper class no matter what. But after coming to the UAE... he felt that he still lacked some insights. After briefly admiring the luxurious decorations around him, Mavita quickly got into the mood. A dinner party on this occasion is not all about eating and drinking. It also carries commercial, even diplomatic and intelligence functions. And just for that moment of confusion, when Maweita looked back at the crowd again, she suddenly couldn''t find Prince Mohammed. Logically speaking, the other party was wearing a burqa and a turban, so he should be very conspicuous among a group of people in suits and ties. However, he didn''t make too much fuss. On the contrary, I was a little happy. After all, according to the principle of reciprocity of status, the person who contacted him should have been Abu Sabah, the head of the UAE delegation. Crown Prince Mohammed was an additional attendee. Moreover, Mavita is going to do some unfriendly things in the future. If the crown prince himself is present, it will cause a lot of trouble. So he turned around and looked behind him, and soon found his deputy, Elan Copus, among the crowd. Of course, the latter actually has another identity. They are the staff sent by the Great Patriotic Intelligence Agency to help Mavita collect intelligence. But just when he opened his mouth to call Ellan, another voice came from behind. "Mr. Mavita." Mavita, who was about to do something bad, was so frightened that he suddenly realized that the person coming was none other than Abu Sabah, who was his target. Fortunately, the latter didn''t notice anything unusual about him, and just came over and clinked the glasses: I look forward to a successful cooperation with you! According to the teachings, neither of them can actually drink alcohol. But fermented grape juice Everyone was tacitly aware of it. After some useless oral gymnastics, Mavita finally found a reason to get away from Sabah, and then immediately found Copus who was also hiding in a corner. "Elan, how is the situation?" Cops'' apparent identity is that of a technical engineer, so he has been conducting random tests in the past few days. "Much easier than I thought..." He shrugged and replied in a low voice: "The UAE''s testing method is very...traditional. It simply takes off several unmanned target drones as targets, and requires us to conduct search tests at different directions, altitudes and distances..." "What''s more beneficial to us is that the preparation of the target drone is also handled by the technical staff of Albatin Palace Airport. They are not soldiers, and the difficulty of bribery is very low..." Having said this, Copus took another sip of the drink in the cup, and then his tone became slightly more serious: "The only problem is that I found out through some insinuation that the earliest paper plan given by the French emphasized the anti-jamming ability of the early warning aircraft, but we don''t know how the other party achieved it at the technical level..." In this regard, Mavita seemed quite relaxed and immediately waved his hand: "The anti-interference of modern radar is nothing more than using pulse compression processing technology to invalidate incoherent interference and compress the effective response time of coherent interference... Elta Company has come up with several plans, but if the opponent uses unmanned targets If its a machine...it may need some modifications. "But this shouldn''t matter. According to the estimates of our technical department, the French plan will not be tested until October this year at the earliest, and the Swedish plan will not be tested until early next year, so there is still plenty of time..." Copus also breathed a sigh of relief: "Then..." He had just begun to speak, but it was as if a mouthful of phlegm was stuck in his throat, and he could not continue to make any sound. Mavita only saw the other person''s mouth slowly opening, and then slowly closing. "Elan?" He shouted worriedly. But Copus just raised his arm and pointed behind Mavita: "Is your estimate... not very accurate?" The latter was still a little confused at this time: "How is it possible..." As he spoke, he turned around and looked out the window through the huge floor-to-ceiling window. A setting sun hung on the horizon, emitting blood-colored light that made it difficult to open one''s eyes. Even so, he noticed On the runway not far away, there was a business jet taxiing with all speed brakes opened. Apparently it had just landed. Of course, business jets are not a rare thing at Albatin Palace Airport. But there was an extremely eye-catching long bulge on the back of the plane on the runway. Mavita had seen this highly recognizable silhouette in the information. It is the French Falcon 8Z "Brilliant" early warning aircraft. It is also their most important competitor. For a moment, the air around the two of them seemed to freeze. It wasn''t until the plane disappeared from the view of the window that Mavita finally recovered: "this" He took a swig of wine and didn''t even notice that his tie was wet because of it: "How is this possible?" (End of chapter) Chapter 1135 tit for tat Chapter 1135 Tit for tat Even though Mavita had said the same thing just a minute before. But the meanings of these two "how is it possible" are completely opposite. The former is the confidence that everything is under control. And the latter is the disbelief caused by the shock in the heart... All the layouts previously formulated by IAI, from gathering intelligence, to buying off personnel, to interfering with testing... were all based on the prediction that the two competitors would "not progress quickly". Therefore, the main target is a few months later. According to the plan, the performance really begins after the test of the G550 "Sea Eagle" is over. But now, the sudden appearance of this early warning aircraft in front of them has disrupted all their arrangements... For a moment, Mavita''s mind was like a mess, and she couldn''t figure out any clue. Until the voice of Elan Copus woke him up from his daze: "So...what''s going on now?" In fact, the former is also in a state of complete confusion at the moment. But the bidding for early warning aircraft is not Mossad''s own business in the final analysis. It is just wiping the IAI''s **** at the request of the leadership. So its hard to say that I dont have the mentality to see jokes. Sure enough, after hearing Copus''s sinister question, Mavita''s expression suddenly changed. However, the latter also knows that now is not the time to vent his anger on his own people. He just replied with a gun and a stick: The basis of all our speculations is that in December last year, Dassault delivered the first Falcon 8Z to China for commercial trial operation, but this aircraft did not appear at several major airports in China... " Hearing this, the expression on Copus''s face changed slightly, and his whole attitude softened significantly. Because the above information was provided by Mossad to IAI. But now it seems that there is obviously a problem with accuracy. The two stared at each other for a few seconds, and then almost simultaneously chose to look away. Internal conflicts can be discussed later. Now they are still grasshoppers on a string. "So... Dassault should have delivered a flight platform for modification to China in advance during the test flight stage..." Mavita spoke first and took the initiative to hand the other person a step down. The latter also followed suit and got off the donkey: "Yeah...it''s impossible for them to modify an early warning aircraft in six months. They must have used some method to avoid our detection..." In fact, if we look deeper into this matter, there are still many problems. For example, early warning aircraft always undergo test flights after they are produced, but there are no eyewitness reports, and no satellites have photographed the aircraft parked on the apron. Even the UAE did not disclose any relevant information in advance. Not that a short test flight couldn''t be kept secret. But as a model jointly developed by two countries and oriented to foreign trade, normal operation should be to publicize every major time node to ensure user confidence. Anyway, after you sell, others will know the information that needs to be known. There is no reason to go to such great lengths to hide it. unless After calming down, Mavita suddenly thought of a possibility - Unless the other party predicts in advance that someone wants to cheat during the test, and then specially launches a surprise attack. "Elan, what do you think..." He originally wanted to discuss this possibility with the other party, but gave up when the words came to his lips. On the one hand, only a very few people, including myself, were involved in this matter, so it was impossible to leak it, and there was absolutely no way the other party knew about it in advance. On the other hand, the arrow is already on the string and has to be fired. Thinking too much can lead to bad things. "Uh...what did you say?" Copus thought he didn''t hear clearly. "I mean, maybe things can turn around." Mavita replied: "Based on our process during this period, after the aircraft arrives in the UAE, it will take 7-10 days to verify the design information before it can enter the testing process." "Didn''t you just say that the personnel at Albatin Palace Airport are easy to deal with... Then take advantage of this period to take action as soon as possible. It is best to bribe secondary personnel in core positions such as ground staff or drone operators..." Copus frowned slightly: "There is no problem with this. In fact, I have selected several targets in the past few days...but what about after the bribery?" "I mean...didn''t you just say that the jamming equipment still needs some modifications?" Mavita sighed softly and replied: "It''s definitely too late to make changes according to the original plan. Now we can only simply and roughly reduce the power... Fortunately, the power required for forwarding coherent interference is not large, and we don''t need to completely disable the opponent''s radar. That would be too much. Fake, as long as they find that the target''s reaction speed is significantly slower..." "At that time, even if the UAE Air Force intends to continue the tradition of using French equipment, it will not be able to accept a product with obvious technical flaws." After completing the mission, Mavita returned to the celebrating crowd in order to avoid attracting unnecessary attention. But his thoughts have already flown thousands of miles away. He reorganized the schedule of the Falcon 8Z business jet project in his mind. But no matter what, there is no way to deal with the situation in front of me... "Why so fast?" He said to himself helplessly. "We have improved the original aircraft production process and more than doubled the efficiency." On another tarmac at Al-Batin Palace Airport, Kasore and Marin were communicating with Crown Prince Mohammed who came to greet him about the situation of the early warning aircraft not far behind him: "So, if your country can choose our model, then we can guarantee that we will deliver the first aircraft within six months after receiving the deposit, and send a group of technical personnel to provide on-site guidance!" When Kasore was in mid-air just now, he had already seen the G550 early warning aircraft parked on the ground. He knows very well that the biggest advantage of the Davidic Kingdom is that the delivery cycle is short and combat effectiveness can be quickly formed. Therefore, the issue of delivery cycle was directly emphasized from the beginning. Sure enough, after the Crown Prince heard "six months", although the expression on his face did not change much, the frequency of his steps slowed down slightly. Although David Kingdom has previously said that spot goods can be delivered, the premise is that a decision will be made at the end of this year or early next year. Its not much different from the time promised by the Frenchman in front of me. Moreover, if the delivery cycle of all four aircraft is considered, the Falcon Z will be faster. Although the UAE is not in a hurry to fight anyone, it is eager to use new equipment to increase its voice in the GCC and bridge the relationship between the Abu Dhabi faction and the Dubai faction. Seeing that the previously agreed words were working, Marin also took advantage of the situation and struck while the iron was hot: "In addition, Your Excellency the Crown Prince, in addition to the basic early warning and command functions, the ''Gaoming'' early warning system has also specially enhanced the capabilities of wide-bandwidth angle detection and anti-electromagnetic interference... The former allows the early warning aircraft to fly on a freer route, and as for the latter... I believe As a fighter pilot, you should have intuitive experience of the power of electronic warfare..." "So, we hope to add relevant items to this actual machine test to more intuitively demonstrate product performance..." This move is called taking advantage of the situation. According to the trends in the Wei Kingdom, Liang Shaoxiu and Chang Haonan have basically determined that the other party will cause some obstacles for them during the test. Rather than reacting completely passively, it is better to take the initiative. Don''t you want to interfere? Then I will directly ask Party A to add an anti-interference ability test. Not only can it promote product performance. If done well, it is possible for the UAE to "accidentally" discover David''s small moves, thus creating some rifts between the two sides. Faced with this request, even Crown Prince Mohammed inevitably showed some surprise - As a big dog owner in the Middle East, he has dealt with buying equipment too many times. From tanks and infantry fighting vehicles, to fighter jets and helicopters, to patrol boats and frigates That is to say, it is really impossible to buy medium-range ballistic missiles these days, otherwise we will have to match the Saudis with dozens of them. But even though he is experienced in many battles, this is the first time that he has seen Party B take the initiative to put more burdens on him during the test. "If subjects are added temporarily, it may take a little extra time to arrange." The Crown Prince replied with interest. "Of course it''s no problem..." Marin was already prepared for this: "It''s just that we have a small request." "Speaking." "Before the test is officially launched, do not prematurely reveal the specific subjects to the outside world, including airport staff..." (End of chapter) Chapter 1136 Just wait and see! Chapter 1136 Just wait and see! Marin''s request seemed very normal to the crown prince. After all, David''s competitors are staying on another tarmac not far away, and they definitely need to be kept secret even for business reasons. And before that, China used the same reason to ask the crown prince to control the scope of the Falcon 8Z test schedule. That''s why the Kingdom of David didn''t hear any relevant news. Before the official test, the UAE also arranged a week-long verification of design information. It sounds very lofty, but in fact it is just to see if the **** you boasted in the early stage can be contained to avoid the situation of incorrect goods. The entire process is naturally the responsibility of the UAE Air Force, and the staff at Al Batin Palace Airport cannot have direct access to the aircraft. But judging from the excellent matching mechanism in the Middle East, if intelligence agencies like Mossad really want to corrupt a certain military position in a country like the GCC, it is basically a matter of time. This is also one of the main reasons why Chang Haonan and Liang Shaoxiu hope to complete the actual machine test as soon as possible - If only some airport staff are bribed, they can still make a comeback with superb performance. But if the other party is allowed to operate for the first half of the year, then all the referees, referees, witnesses, organizers, and co-organizers will be from the Kingdom of David. How can I play with him? So its better to finish things early and get things done quickly... As the general person in charge of selection, Crown Prince Mohammed needs to maintain a close but not too close relationship with each bidder. Therefore, after the welcome ceremony, only one other deputy was left to take charge of the reception, while he left quickly to prepare for the arrangements. China and France specifically requested several new tests. Before arriving at the departure hall, Marin suddenly paused, then turned around and told Casore that manpower must be on duty 24 hours a day in the past few days to ensure that he never leaves. On the other side of the airport, Shaul Mavita found an angle and quietly stared at the early warning aircraft in the distance that was completely beyond his expectation. He secretly decided not to return to the Kingdom of David for the time being after the test, but instead Stay in the UAE to keep track of your opponents. Elan Copus has quietly left the airport, preparing to use some old hidden stakes to take down one of the easily controlled targets in the shortest possible time - Although the United Arab Emirates is known as a big country, its per capita GDP is actually about the same as that of normal developed countries such as Germany, France, and Canada, and a far cry from truly rich countries such as Liechtenstein or Monaco. In this way, it still takes advantage of Dubai as the financial center of the Middle East. Under such a basic situation, the more the upper-class princes and nobles show exaggerated luxury, it shows that the life of the lower-class civilians cannot reach the level corresponding to the per capita GDP. Therefore, as long as you find an old man who is living in hardship due to bad habits or family reasons, it is not difficult to bribe him directly through a silver bullet offensive. After all, it''s just a jammer, not a bomb, nor is it anything risky. And those hidden stakes will not even interact with the people who actually do it, and there is no risk of being involved by following the clues. Unless you are caught, you will definitely die without any evidence afterwards... In short, almost all the forces related to this were spinning around the Falcon 8Z early warning aircraft not far away. Except for the Swedes. When Ericsson participated in the bidding this time, it originally had the idea of ????hitting three poles. However, it was completely kept in the dark, thinking that Dassault would be like itself and wait until early 2005 to participate in the test. Of course, even if they knew, there was nothing they could do. The Global 5000 business jet itself has not yet been put into commercial operation, and unlike Aerospace Power Group, they are deeply involved in the research and development of the Falcon 8Z, so they can obtain key data during the trial operation and even the prototype stage. Bombardier cannot take a huge reputational risk by delivering an immature flight platform to customers. In fact, when the bidding products of Dassault and IAI appeared at Albatin Palace Airport at the same time, the probability of the Global Eye program winning the bid was infinitely close to 0... The following days were an undercurrent. Under the urging of France and China, the two five permanent bosses, the oil guys still showed extraordinary work efficiency. Its just money anyway. flower! Therefore, in just seven days, except for the forwarding jamming pod required for the anti-jamming test, all other related hardware was concentrated at Albatin Palace Airport. The reason why the jamming pod did not appear was firstly because of Marins confidentiality requirements, and secondly because it was restricted by the US agreement The UAE itself does not have the ability to develop electronic warfare systems, so it can only be carried out by F16s carrying AN/ALQ-131 and AN/ALQ-184 electronic jamming pods. This model is prohibited from contact with third countries. In fact, even participating in this test is considered a side ball. Fortunately, the people participating in the bidding were French, so there wouldn''t be too much of a problem. Of course, Kasore and Marin''s trip was not originally to investigate intelligence, so they did not care about these details. Only after all ground preparations are completed, the flight test is required to start as soon as possible. June 15, 2004. Sunny, breeze level 2-3. The early warning aircraft numbered 8-001 had started its engine and was parked at the end of the runway in idle mode, just waiting for the takeoff command from the tower. The aircraft in the test phase still belongs to Party B, so the two test pilots from Dassault are still sitting in the cockpit. But in the command module at the back, there were test and technical personnel from France, China and the United Arab Emirates. Fortunately, the cross-sectional area of ??the Falcon 8Z''s cabin is slightly larger than that of the G550, so it is not particularly crowded. In fact, originally, the UAE wanted to send a few more people to board the plane. But Chang Haonan learned the lesson from the air crash in his previous life and repeatedly emphasized that he should not overload or act recklessly. Therefore, the last representatives of Party A to board the plane were only Abu Sabah and another early warning engineer from the Air Force who had received training on Saudi E3 early warning aircraft. At the same time, on the tarmac far away from the airport, two large unmanned target drones were also prepared on the launch tower, waiting for the early warning aircraft to take off before launching into the test airspace. They will, as usual, be used as targets for testing radar performance in "smart" systems. Everything seems to be no different from the time half a month ago. However. Just when almost everyone''s attention was focused on the plane at the end of the runway that began to accelerate slowly. An inconspicuous-looking staff member wearing a ground service uniform carried a toolbox and came to a visual blind spot that was not easily noticed. He made a gesture to check the launch system, took out a screwdriver from the tool box, bent down and got under the launch tower of one of the drones. After confirming again that no one was around, he pointed the tool tip at the mission load module. On an inconspicuous screw somewhere, turn it 1/4 turn. Then he took out a small device from his pocket and put it on it. After confirming that all three sets of green lights on the device were on, he left with satisfaction. Then, at the speed of light, he arrived at the terminal and found a public phone. Insert card and dial. Wait for the ringback speaker to ring three times before hanging up. Then, as if all his strength had been drained away, he leaned slumped against the wall and slowly sat on the ground... In the VIP reception room less than 100 meters away, Mavita was holding a mobile phone in his hand that stopped ringing three times, with a relaxed expression on his face that he had not seen for many days. As a senior representative of Party B, it is really easy to find a reason to stay. Although they are prohibited from entering the infield area, it is still okay to stand here and watch from a distance. Mavita raised his head again, just in time to see the Falcon Z early warning aircraft roaring across the runway in front of him. A few seconds later, the aircraft raised its nose as lightly as a swan and flew towards the test airspace. "Just wait and see..." He muttered something to himself. (End of chapter) Chapter 1137 Take off Davids underwear Chapter 1137: Taking off Davids underpants As a small country, the United Arab Emirates spans only about 400 kilometers from east to west. Taking into account the security issues of the two major metropolitan areas of Abu Dhabi and Dubai, it is simply not enough for the early warning aircraft radar to fully exert its performance. Therefore, the test location was actually chosen over the Rub al-Khali Desert, which straddles Saudi Arabia and the United Arab Emirates. There is no human habitation here, and there is no need to worry about the impact of ground clutter on the fairness of the test results. About 40 minutes after takeoff, a report from the pilot was received in the command module. The aircraft has arrived over the predetermined area and can start testing at any time. Sabah, the representative of Party A who took off randomly, checked the time, then picked up the radio and began to issue instructions to the ground according to the form: "UAV No. 1 is ready for launch, set at an altitude of 19,000 meters, starting point 21,30, KM17 area, heading 355, departing in the northeast..." The combat effectiveness of the UAE military is certainly poor, but as an ally of the US military, the training standards it receives are indeed top-notch. This paragraph actually refers to the nine-line briefing used for close air support, and skips the part involving target attributes. It shows that the UAE Air Force has actually mastered quite advanced air-ground coordination tactics. Even to a certain extent, it is far ahead of the Chinese Air Force, which is still stumbling to adapt to precision-guided munitions. Fan Jimin, the representative of Electronic Technology Group sitting next to him, secretly noted this detail. The Nine Lines Briefing itself is public information and of course anyone can use it. High-throughput data links, which have been absent in the past, have gradually begun to be rolled out in some pilot units. But how to turn technology into tactics requires long-term learning and adaptation. It is impossible for Americans to be kind enough to teach the Chinese army directly. Direct military exchanges with European countries are also a bit too sensitive. But it doesnt necessarily mean that you cant learn from other places in a roundabout way. Of course, the first priority right now is to ensure the successful completion of this test. The flying speed of the unmanned target drone is similar to that of the early warning aircraft in cruising state, but because it can fly less distance, it only took about half an hour for the early warning aircraft to receive the report that the high-altitude target test project had officially started. However, the radar display on the display console did not yet show the echo signal from the target aircraft. "Next...just wait until the target enters the search range?" Sabah turned to Fan Jimin and asked. "The height of 19,000 meters is somewhat beyond the search range in normal mode, so it needs to be switched to wide-angle scanning state..." While talking, Fan Jimin personally sat behind the radar console and flipped the two switches in front of him. The search range displayed on the screen instantly expanded from 120 on both sides to 150 on both sides. Correspondingly, the radar marking range is slightly shortened. But the impact is small. Seeing this scene, Sabah''s eyes widened slightly, obviously he had never seen this kind of gameplay before. However, apart from surprise, the most important thing is doubt: "But what does this range have to do with height..." Party As eldest father spoke, and Fan Jimin immediately explained: "The wide-angle scanning state will not only affect the plane search range, but also expand the vertical scanning angle by about 20%..." In order to emphasize the performance of the "smart" radar, the early warning aircraft was flying at an altitude of about 3,500 meters at this time, so that the turbulence in the cockpit was somewhat obvious. This is not the typical cruising altitude of early warning aircraft, but the unmanned target drone can only fly up to 20,000 meters. In order to maintain a sufficient altitude difference, this choice can only be made. As if to confirm Fan Jimin''s statement. After adjusting the search mode, only a few seconds passed before a rather conspicuous echo signal appeared on the edge of the radar screen. The altitude calibrated in the information box is 19,300 meters and the speed is 730km/h. Obviously, as a target drone, the target height setting system is not particularly accurate. Fortunately, it did not exceed the detection range of the early warning aircraft. At this time, Kasore, who had been silent just now, opened his mouth and said: "The airborne integrated display and control system was developed by Thales. As you can see, the interface style and operating habits are very similar to the Mirage 2000-9 aircraft that has just entered service in your country and our newly developed Rafale fighter jets. " "Of course, considering that your country''s early warning aircraft operators are trained on Saudi Arabia''s E3A, we also provide another more...traditional default solution." Tradition, to put it less euphemistically, means backwardness. It can be regarded as a secret effort to suppress their American counterparts. Of course, the French are unique in the field of cockpit ergonomics, and they do have the confidence to do so. However, in order to avoid unnecessary digressions, Fan Jimin took over the conversation in time: "Now, the projection distance between our early warning aircraft and the target is only 25km, and the altitude difference has reached 16km, which is equivalent to simultaneously detecting targets on the ground and above 30,000 meters at a normal flight altitude..." At this time, Sabah still didn''t understand why this Chinese man suddenly talked about this. But Fan Jimin''s next words directly hit his heart. "This means that we can gain about two to three minutes of warning time during the ascending phase of short- and medium-range ballistic missiles..." "!!" The only military threat the UAE may face in the foreseeable future is probably short-range ballistic missiles from Persia. Although the technical level is not advanced, the advantage lies in large quantities and sufficient management. For countries like the GCC that rely heavily on oil exports, it is basically the Sword of Damocles hanging over their heads. Even if we don''t launch a large-scale salvo, just stealing your oil refinery today and blowing up your oil pipeline tomorrow will be enough to cause catastrophic consequences. Therefore, when Fan Jimin talked about anti-missile missiles, Sabah became energetic almost instantly. In 2003, even in the United States, mid-course anti-missile interception technology was still based on PPT. Countries'' response strategies to ballistic missiles rely on normal mid- and long-range air defense systems. And this relies heavily on early warning and reaction time. Especially for Patriots who need to deploy their positions in advance and launch at an angle. If you wait until ground radar detects the target in the descent stage of the ballistic trajectory, you will basically have only 4-8 launch opportunities. But if we can give early warning during the rising stage... Then the ability to resist saturation strikes can be doubled. In fact, as someone who has been there, Chang Haonan knows very well that, let alone 2003, even in 2023, intercepting the intermediate missile will be a matter of pure luck. But people in this era are different. With decades of propaganda from Raytheon, they really dare to believe in Patriots interception efficiency against ballistic missiles. Therefore, this targeted statement almost instantly tilted the balance in Sabah''s heart - Although he was not the final decision-maker, he had direct access to Crown Prince Mohammed. The right to make suggestions is also very important. Sure enough, after Sabah thought for a moment, he assured Marin and Kasore: "I will report this situation specifically to His Excellency the Crown Prince..." After a small interlude, the originally business-like atmosphere in the cabin seemed to become more harmonious. Soon, the first unmanned target drone began to lower its altitude according to the predetermined route, and then circled back and forth in the test airspace several times, obtaining about 20 sets of valid data before entering the return route. Almost at the same time, the second unmanned target drone at Albatin Airport took off, preparing to conduct a detection range test in a complex electromagnetic environment with the assistance of another F16. The overall steps are almost the same as before. Only this time, the target aircraft will choose several routes that are about 250-450km away from the early warning aircraft to fly separately. In the second half of each round of flight, the F16 will start the jammer to test how long it takes the high-definition radar to reposition the target, and how different the accuracy of the second positioning is from the first time. Logically speaking, this is the most basic radar function test. The electromagnetic interference was also specially requested by China. So it should be very sure. Even Sabah gradually relaxed and began to chat with the other two about non-confidential gossip. About twenty minutes later again. "The target has entered the test airspace!" Sabah put down the radio in his hand, sat upright in his position again, and stared at the radar display in front of him. However, he still had a rather relaxed expression on his face, and he even hummed an off-key tune that only he could hear clearly. Everything is as expected. Within a few minutes, two targets located 250km away appeared on the screen. Data shows that the two are 35km apart, but they are getting closer. Apparently, one of them was the F16 responsible for causing electromagnetic interference during the second half of the test. It is a very risky job for a manned aircraft to accompany a drone for a long time, so when there is no need to activate interference, the F16 will stay a little further away. However, just when Sabah thought everything would be over, the echo signal representing the drone suddenly stopped on the radar screen. It''s like network packet loss. Although the location is still updating, it is very slow and occasionally jumps. "Um?" Seeing this scene, Sabah''s face instantly became serious. Although detection distance is not the only factor that determines the performance of an AWACS, if an AWACS cannot even perform this most basic function well, it will definitely not be able to meet combat requirements. Kasore, who was sitting two seats away, had received a reminder from China earlier. Although he was mentally prepared for this meeting, he could not help but feel nervous and looked at Fan Jimin between the two with a little guilt. Fortunately, the latter is as stable as a rock at this time, and there is no trace of panic. Of course Fan Jimin knew the tricks involved, but he still had to act when it was time to act. Then he tried his best to pretend to be surprised: "Mr. Sabah, did you carry the electromagnetic interference pod directly on the drone?" "How is that possible?" Sabah was confused when asked: "The power of AN/ALQ-131 and AN/ALQ-184 is several kilowatts, and the energy supply system of the unmanned target drone cannot power it at all." "No" Fan Jimin shook his head and continued to pretend not to know: "I''ll tell you all about AN/ALQ-131 and AN/ALQ-184. We have rich experience in fighting... Although the interference characteristics are similar to this one, the intensity is definitely stronger than this one." "Anyway, this level of interference can be quickly eliminated by temporarily adjusting the preset waveform." As he spoke, he moved the trackball on the table and quickly modified two scan settings on the screen. Just like the words are spoken. As expected, the target trajectory on the screen became clear again, and the lag quickly weakened and gradually disappeared. "Look." Fan Jimin spread his hands and made a "I''ll just say it" expression: "This is a typical intermittent sampling and forwarding coherent interference... If our early warning aircraft were not specially optimized, the detection accuracy and target refresh rate would be affected..." A performance at the level of an Oscar statuette, even Sabah was stunned. As the actual person in charge of the selection and testing work, he has never arranged such a link. But looking at Fan Jimin''s unfazed reaction just now, it really doesn''t seem like there''s something wrong with the early warning aircraft itself... The air in the cabin became a little anxious. Just at this time, a report of "preparing to start electromagnetic interference" sounded on the radio. The distance between the F16 and the unmanned target drone is also close to less than 500 meters. It has entered the cover area of ??the electronic warfare pod. Sabah pointed at the radio, and his meaning was obvious: "Look, I just said there was no electromagnetic interference, right?" But before he lowered his arm, almost the same situation as before appeared on the radar display again. Stuttering, jumping. And there''s still blur. It was as if it was covered by a thick cloud of chaff. Two targets that were very close to each other directly merged together. Fan Jimin shrugged: "I would say, this is the characteristic of AN/ALQ-131 and AN/ALQ-184..." After saying that, he adjusted the preset waveform again with ease and turned on the lever switch marked "anti-interference" on the panel next to him. Still the same as before. The adverse effects caused by the interference gradually disappeared, and the two targets appeared clearly on the radar screen again. Sabah''s jaw was slightly open, staring blankly at the scene in front of him. This is much more convincing than those few sentences just now. Obviously, everything is exactly what Jimin said. In the first half of this round of testing, the drone really released electromagnetic interference to the early warning aircraft. It was just overcome by anti-jamming measures. "but" Sabah''s mind was a bit lost. Next, the unmanned target drone conducted a second round of testing at a further distance of 50 kilometers. The entire process is almost identical to the first round. This left Sabah speechless. "You two, I swear to God, there is absolutely no..." Fan Jimin was so anxious that he wanted to curse when he saw that the other party was not on the right track and was tending to involve the situation in the theological field. But considering that the other party was a foreigner, I had no choice but to silently recite materialism in my heart while raising my hand to stop Sabah from swearing: "Mr. Sabah, of course we believe you." "but" He and Kasore looked at each other: "I suggest that after the second target drone lands, personnel from your country''s air force should immediately take control of it and check whether there is really any jamming equipment you don''t know about installed on the aircraft!" (End of chapter) Chapter 1138 Catching a turtle in an urn Chapter 1138: Catching a Turtle in a Jar In fact, if you take it seriously, what Fan Jimin just said is a bit over the line. You, a foreigner, directly suggest that other people''s troops take action. This is definitely not something that can be overcome by adding the words "suggestion" to the other. However, Sabah no longer cares about these details at this time - After hearing Fan Jimin''s suggestion, he didn''t react too well at first. After all, I was just talking about God, so its not easy to change my mind. But he soon realized that something was wrong, and then he lowered his head and fell into deep thought. He also went out of his way to look as stable as a rock. However, through the not-so-bright light in the cabin, Fan Jimin noticed that Sabah''s right hand resting on his lap was clenched into a fist and trembling. Obviously, the latter''s heart is not as peaceful as it appears... If Fan Jimin''s speculation just now is true, it means that someone is deliberately manipulating the results of this early warning aircraft selection. A payment of several hundred million dollars is not a big deal. Even the performance of the early warning aircraft is not that important. My family knows my own business. Sabah never counted on the combat effectiveness of the UAE army. The inside was penetrated into a sieve, and he probably knew it in his mind. However, this time the crown prince himself was involved. The nature is completely different... In this moment, the drone entered the route for the third time and flew 350 kilometers away from the test machine. For a 40-ton small early warning aircraft, even if the target aircraft carries a corner reflector to increase RCS, this number is already close to the upper limit of the detection range. Coupled with the influence of electromagnetic interference, the target signal on the radar display is unstable. Even if the preset waveform is adjusted as before, the echo intensity is still too weak, making it difficult to maintain tracking. However, Sabah didn''t even look at the screen. He directly picked up the radio from the side and ordered in a deep voice: "Something happened here, the test is suspended, repeat, the test is suspended!" The person on the other end of the radio is also a staff member of the Albatin Palace Airport. Before the internal investigation has been carried out, if he explains the ins and outs in advance, it will almost certainly alert the enemy. I can only find some excuse to deal with it first. Sure enough, the people over there thought there was something wrong with the early warning aircraft, and their tone suddenly became tense. Even asked if an alternate airport was needed. "No need, it''s... a problem with the on-board equipment. Party B''s engineer said that he can simply replace the spare parts after returning." As Sabah answered, he cast an apologetic look at Kasore and Fan Jimin next to him. Although he acted in a hurry, he always said bad things about others out of thin air. The latter two naturally don''t care. Sabah continues to show off his acting skills: "But it''s best to arrange for us to land before the drone to avoid any other troubles..." After the radio call ended, the entire cabin fell into silence. Casore and Fan Jimin really didn''t know what to say. Sabah didn''t want to say anything. As a result, only the low roar of the engine and the hum of the cabinet fans and air conditioners echoed in everyone''s ears... Because there is no need to consider the angle of entry into the airspace, the return trip time is much shorter than the original trip. In less than half an hour, prototype No. 8-001 returned to the sky above Albatin Palace Airport and prepared to land. At this time, on the ground, because what Sabah just reported was an equipment failure, the airport fire department parked several fire trucks and ambulances beside the runway as a precaution. Anyone who takes one look at such a scene will know that the situation is abnormal. For example, Shaul Mavita has been waiting for the test results in the VIP lounge. Based on the experience of the G550 Sea Eagle some time ago, the first morning test will last about 4 hours. However, if problems arise during the process, Party A may be required to stop the test in advance. Therefore, when he saw the early warning aircraft appearing on the horizon in advance and preparing to land, he was almost certain that his jamming plan was successful. The other party was obviously affected by interference and could not stably capture the target. For an early warning aircraft, even the most basic detection capabilities cannot be guaranteed, so there is no need to continue testing other subjects. Just return directly. Reasonable. Very reasonable. However, before Mavita had time to breathe a sigh of relief, the fire trucks and ambulances that followed him were shaken a little. After all, it seems that a simple radar failure does not require the use of these things. "Isn''t it a radar problem... but a mechanical failure?" Mavita stood in front of the French window, frowning and thinking to herself. But at least from the outside, there was nothing unusual about the plane that was aiming for the runway and descending. It was just performing a normal landing action. The actual situation also verified his idea. The AWACS landed smoothly, decelerated near the middle of the runway, and then left the nearest taxi exit toward the apron. After some fruitless thinking, Mavita decided to give up temporarily. "Forget it...if it''s a mechanical failure, then they will be even more embarrassed..." With this thought in mind, he had already begun to think about what would happen next Now Dassault''s plan has basically been sentenced to death, while the Swedish product is still on the drawing board, far away from actual machine testing, and there are no bright spots in terms of performance. Apart from sea eagles, Emiratis simply have no other choice. The only trouble is that the delivery time given by Party A is very strict, so after returning this time, you need to convince your superiors to add a production line and corresponding manpower. As long as you can complete this order, it will be the most important bargaining chip for your next promotion to the group''s management... Mavita couldn''t help but start fantasizing about the days when she would get a promotion and a raise, and reach the pinnacle of her life. However, it was somewhere he couldn''t see. On another tarmac, Sabah hurriedly stepped off the plane and went straight to Major General Saeed Anbar, the head of safety of the selection team. "Mr. Sabah, you..." As soon as the latter''s question came out, Sabah raised his hand and interrupted: "Send people to secretly control the exits of the airport." The sudden instruction caused Anbar to sway and almost lose his balance: "Exit control?" This kind of operation makes it difficult for him not to think in wrong places. But the major general''s concerns were quickly dispelled. Sabah nodded and further explained: "Control, but keep a low profile for the time being. Before receiving my next order, if anyone, especially a staff member, leaves, don''t stop them. Just register their names and identities." Obviously, this is not a basic operation for a coup. Although he still didn''t pay attention to Sabah''s purpose, Anbar still obeyed the order, quickly turned around, and deployed defense through the radio... Later, the second slower drone also returned to the airport and landed on the runway smoothly. Everything seems normal. Several ground crew members quickly gathered around to prepare for necessary maintenance and refueling work Sabah just said that the morning test was suspended, but did not say that the entire test ended early. So we should still have to take off in the afternoon. And for one of them, there is a more important task to complete. That is to take advantage of others'' unpreparedness and remove the jamming system installed in the belly equipment compartment to avoid any accidents during this period. Wait until before flying in the afternoon before reinstalling. This was not difficult for the ground crew responsible for the final inspection. However, before a few of them took a few steps, they were stopped by another group of people. One of the leading officers saluted: "We have been ordered to inspect this drone. Please wait a moment." The foreman on the ground staff didn''t have any reaction, but he just felt like everyone was being mysterious today. But he didn''t notice that someone behind him suddenly turned pale and his whole body was shaking like chaff... "Leader, can I go to the toilet?" "Okay, come back soon..." The structure of the drone is not too complicated. Therefore, the inspection only lasted about five minutes in total. As Fan Jimin expected, the accompanying technicians from the Air Force dismantled a long strip-shaped object weighing about ten kilograms from the equipment compartment of the second drone. There are no markings on it. "This is" The technician looked at the airport ground team leader with a blank look on his face. The latter also shook his head and said that he knew nothing about it. Only Sabah has a clear mind. At this moment, the only thing he felt was anger. The reason why Albatin Palace Airport was originally chosen as the testing base was to balance the interests of all parties and ensure a relatively independent testing process. As a result, some people are still causing trouble. Is it an internal fight between the two factions of the Air Force? Or is there internal and external collusion with one of the other two bidders? Or maybe someone wants to use this to target the royal family? This is not a slap on Sabahs butt, but a slap on Crown Prince Mohammeds face! Thinking of this, Sabah took a deep breath and looked at Anbar who was waiting not far away: "General, immediately block all entrances and exits of the airport. No one is allowed to leave until new instructions are issued!" (End of chapter) Chapter 1139 Riding each others faces? Chapter 1139: Riding each others faces? The efficiency of the Gulf kingdoms is quite low, and their ability to control the grassroots and even the middle levels is not strong. This is generally true. But there are not exceptions. If an incident is considered to be related to the royal family, especially if it involves a negative impact on the royal family. Then they can also show you what true efficiency is. Because at this time, many procedural matters can be saved... Just like right now. Although Saeed Anbar holds the rank of Army Major General, he does not belong to the combat order of the UAE Army. Rather, they are the military police or special police belonging to the royal family. After briefly listening to Sabah''s explanation, his face immediately turned cold: "Do we need to bring in more people?" It was completely different from his unwillingness just now. The former thought for a moment, a trace of hesitation flashed in his eyes, but finally shook his head: "That''s not necessary." "Judging from the size of this device, there are only 2-3 people on the other side at most. As long as you can block the entrance and exit, it should be easy to identify. In addition..." When Sabah said this, he leaned his upper body slightly forward and lowered his voice more and more: "The large-scale mobilization of personnel to the Albatin Palace Airport will itself lead to the leakage of information..." Obviously, although this old man who looks like an administrative civil servant is not quick in thinking, he is quite experienced in doing things. After some instructions, Sabah turned around again and looked at the group of people who had just gotten off the early warning aircraft not far behind him. But he didn''t speak immediately. To be honest, facing these people, he really had a headache. Logically speaking, Dassault is considered the victim of this incident, and at the most critical moment, it was someone who gave the key reminder that gave Sabah the opportunity to make a time difference and control the situation. Therefore, it is impossible to treat him as a suspect in any case. But the key to the problem now is not whether the interference equipment on the drone will affect the selection results. But whether someone wants to use this to target the crown prince. In order to control public opinion, at least until the mole is found out, people cannot be released... Fortunately, Fan Jimin and Casore had the same mentality as Ming Jing, and they originally wanted to continue eating here, so they didn''t embarrass each other. "Mr. Sabah." Kasore took the initiative to take two steps forward and said to the other party: "Considering the current situation, I have reason to suspect that someone is premeditated to target the products we participated in the bidding during the actual aircraft test, so until the situation subsides, we have to stay at the airport to prevent problems with the aircraft itself..." This statement, of course, cannot withstand scrutiny. In fact, it just provides a step for the three parties at the same time. Otherwise, you can''t rush to say that we can stay and cooperate with the investigation, right? Wouldn''t that mean that he actively put himself in the position of a suspect? Even if they personally have no objection, the country behind him cannot afford to throw this person away. No matter what you say about France, it is still a member of the Wuchang In the closed-door meeting of the Security Council, you called me a disgrace to the WPC, but I didnt pick on you. Now that I''m out of this door, what should you call me? Therefore, even if you really want to cooperate with the other party, you can only express it by making requests. Fortunately, Sabah was also very wise and immediately understood what Kasore meant: "No problem. Until we figure out the whole situation, we will receive all members of your delegation as VIPs. Please move to the lounge for the time being..." Kasore and Fan Jimin then each assigned a reliable member to guard the plane, and then led others to follow Sabah. Before going to the lounge, they naturally had to meet up with the other delegation members who had just stayed on the ground. "Old horse!" Fan Jimin saw the 1.9-meter-tall Marin from a long way away, and he came to him in three steps and two steps at a time: "There was a small accident during the test. Now the Albatin Palace Airport is under full martial law. We may have to wait here for a while..." Speak in Chinese. But even people who don''t understand can feel the anxiety and urgency in his words. However, due to the angle, no one noticed that Fan Jimin winked quickly when he spoke. "What''s going on now?" Marin''s speech was not fast, but it could be heard that he was suppressing his emotions and pretending to be calm. It is very consistent with the current actual situation. But this wave of his was really not staged. As one of the senior members of the delegation sent by China, Marin certainly knew that he had already prepared for possible small means. But China, unlike the Davidic Kingdom or France, does not have enough influence and layout in the Middle East. If you develop overly complicated strategies, it will be easy for you to get involved in them. Therefore, in the advance plan, there was no link for the UAE to block the scene. Now the situation seems to be out of their control. As a technician who has no experience in external liaison before, it must be a lie to say that he is not nervous at all. "dont worry." Fan Jimin was actually half a man, but he had been on the plane just now. Not only did he know all the ins and outs, he was even a pusher to a certain extent, so his mentality was naturally much more stable, so he lowered his voice and explained: "The process was much smoother than expected... With the electromagnetic interference actively imposed by the UAE Air Force as a comparison, we were only halfway through the test when we clearly found that the target drone had been tampered with." "I took the opportunity to suggest that the UAE check the drone after the test. My intention was just to allow the other party to fix the evidence in time to avoid being destroyed by interested parties... But for some reason, the leader of the Sabah team reacted extremely strongly and suddenly announced that it was due to equipment failure. If the test is to be terminated, then I can only continue to act with him..." "But in any case, the rest of the matter has nothing to do with us. Now that the jammer in the unmanned target drone has been discovered, regardless of whether we can find out who did it, the other two...especially the tests with our front and rear feet Even the Davidic Kingdom cannot escape suspicion..." Hearing this, the burden that had been weighing on Marin''s heart suddenly disappeared, replaced by a burst of ecstasy of success. This was different from the joy that he had been accustomed to before, the joy of finally solving a problem after working hard for a long time. But it has a little bit of the excitement of a gambler who wins. Intoxicating. "That" As soon as Marin said the first word, the expression on his face almost became unbearable. Fortunately, he instantly realized that this scene was not suitable for smiling too brightly, so he quickly bit his tongue and forcibly suppressed his smile. Performed a "Double Life of Comrade Marin". "That means... we are pretty sure about this selection?" Speaking of this, although Fan Jimin still controlled the expression on his face very well, his tone inevitably fluctuated: "Although it''s a bit early to draw conclusions...but if nothing goes wrong, we should have no opponents." The original intention of all their previous domestic layouts was not to affect the performance of the aircraft during the test process. To put it bluntly, you still have to rely on strength to impress Party A. But after today''s round of erroneous operations, even if no direct evidence can be found, the David Kingdom cannot escape the suspicion of meddling in the UAE and interfering with the direction of the selection work. This is a dimensionality reduction blow. As both allies of the United States, the UAE usually behaves as if it is close to your country. But when it comes to this kind of time, it is impossible not to show any performance at all. So there is no need to consider performance at all. The G550 must have been passed directly. As for Ericsson To be honest, from the beginning, neither China nor Dassault regarded them as their main opponents. The Global 5000 is a good airplane. The upgraded Global Eye is also a good radar. Unfortunately, the progress is too slow and it is difficult to meet the stringent delivery cycle requirements of the United Arab Emirates. As soon as you said something to me, the group of people followed Sabah to the door of the VIP reception room. There is no need to go inside, just standing outside and looking at the decoration of the door and corridor, it is not difficult to guess how luxurious the conditions inside are. "Please rest inside first. If the state of emergency has not been lifted by tonight, the airport can arrange a hotel for you to stay in for free..." Listening to this inhumane speech, Fan Jimin couldn''t help but smack his lips. This big oil man certainly lives up to his reputation. Sabah personally opened the door, and then ordered several security personnel not to restrict the activities of the people behind him within the airport. Then, he turned around and left. As soon as they entered the room, to everyone''s surprise, there were actually several people sitting inside. You should know that in the recent period, Albatin Palace Airport has not been opened to external business routes, and except for a few government charter flights, no other aircraft has arrived. Then the identities of these people... While Marin and Fan Jimin were guessing, Kasore had already recognized one of them. "Mr. Mavita." The expression on his face froze, and then he pulled out a somewhat exaggerated smile and walked up to the other party: "Nice to see you here." In fact, Kasore couldn''t control himself for a while because he knew that his side had almost guaranteed victory. But this set of micro-expression changes became a symbol of guilty conscience in the eyes of Mavita opposite. The latter had been in this lounge just now and didn''t know what happened. Just thinking that Dassault''s early warning aircraft had a big problem during the test, Kasore would be in a state of incompetence and rage. He didn''t originally have any intention of making a fuss about it, but now that the other party came to visit him, there was really no reason not to be a little bit weird. "Me too, Mr. Casore." He stood up and shook hands with Casore: "Hope your tests this morning went well." The two of them are not on the same channel at all. They both feel that they have a great advantage and can take advantage of each other. So Kasore is not false at all: "As you wish." "This past morning, we were indeed... very productive." After all, the matter has not yet settled, so he chose a slightly euphemistic way of saying it. At this time, Marin and Fan Jimin, who came in later, also thought of Mavita''s identity through the conversation just now. In fact, the two of them had read the information of the core members of the Davidian delegation before setting off. But as we all know, there are some differences between real people and photos. So I couldn''t recognize the other party in the first place just now. However, now that I recognize it. That''s when enemies meet on a narrow road. Especially for Fan Jimin. Before he was promoted to deputy by Guo Lin, he happened to be an engineer involved in the transfer of technical data for the ring project. Although he did not directly deal with the Kingdom of David, the whole process was very clear. At that time, they relied on their technical advantages to pursue and intercept the budding Chinese early warning aircraft, and even took the initiative to breach the contract, forcing the project to be delayed for more than two years. If Wang Xiaomo and Chang Haonan hadn''t had the foresight to save 200 air marshals in advance with the scraps of resources at hand, then the big event would have been delayed. And now, China''s early warning aircraft has caught up from behind in technology, and you are actually trying to take advantage of the situation again? To be honest, Fan Jimin was very annoyed. But it was only the last half step away from a complete victory, and it was impossible to make trouble for such a trivial matter. Therefore, he was not going to pay attention to those Davidians for the time being. This VIP reception room covers an area of ??several hundred square meters, so you can stay away from it. It wont be too late to wait until the final results come out. But what I didn''t expect was. He didn''t want to cause trouble, but he had to take the initiative to come to him. The two Chinese faces stood out among a group of Europeans. So Mavita quickly noticed the two people next to him. "Hello, two friends from China." He greeted in a slightly exaggerated tone. Although he said he was a friend, the next sentence that followed was not friendly. Even, it makes people feel a little red: "I hope you really learned enough from the Ring Project..." (End of chapter) Chapter 1140 situation reversed Chapter 1140 The situation is reversed To be fair, although the ring project ended hastily in an anticlimactic manner, it still progressed normally for a few years at the beginning. To say that there are no results at all, thats not the case. For example, the processing methods of the Air Police 200, including the large-size rectangular antenna array of the 346A radar, largely referred to the technical routes proposed by IAI in the Ring Project. But in the final analysis, this is only a trivial matter for an early warning aircraft. Moreover, there are many countries that have mastered similar technologies. If you had just taken a fancy to these small and small companies, you would not have spent a lot of money to cooperate with your country. Compared with the resources China has poured into the ring project and the nearly ten years of effort it has put in, the benefits gained from it are simply negligible. Huaxia, as Party A, is fully aware of this, and IAI, as Party B, cannot be unaware of this. So Fan Jimin quickly guessed that the reason Mavita deliberately did this was probably because he didn''t understand the specific situation at this time and thought he was already sure... When people suddenly relax after a long period of high tension, they will need a channel to pour out their emotions. Mavita''s choice was to ridicule the "defeated men" in front of him to make up for the fear he had felt during this period. After figuring this out, Fan Jimin not only didn''t really feel red, but he suddenly woke up - Ridicule must be based on facts. First make it impossible for others to refute, and then you can make the opponent break their defense. Just like if you said Newton was good at mathematics, he might just smile. But if you dare to ridicule him for stock trading, Lord Niu will make you perform a performance of a head and an apple falling to the ground at the same time. Fan Jimin now falls into the former situation. After all, the "smart" early warning system, let alone the Ring Project, is completely different from China''s own Air Police 200/2000. Optically controlled phased array radar. Although many countries have some technical reserves in this field, even small prototypes. However, the feasibility of replacing electricity with light is still widely discussed. As for implementing it into the project, it is only this one, and there is no semicolon. "We definitely learned a lot...in a sense." He smiled abruptly. He even took a step forward and shook Mavita''s hand. This is not a lie. Although there is nothing technically gained. But I learned a lesson on the ground. The research and development of core equipment can never rely on foreigners. Moreover, if the ring project is really completed successfully, then China is probably still digesting and absorbing those four aircraft. There are simply no extra resources to promote independent research and development projects. As a technician from the 14th Institute of Electrical Engineering, Fan Jimin is really grateful to David for not being a good person... On the opposite side, Mavita was a little frightened by this somewhat abnormal reaction. Originally, according to his estimation, the group of people in front of him should either have frowning faces and expressions ashen as death, or they should be fighting tit-for-tat with each other. No matter which reaction it was, he had a way to fight back further. But this kind of painless response made him very uncomfortable. There is a feeling of charging up a punch, but the result is empty. The originally tit-for-tat atmosphere between the two groups also cooled down a bit. After all, we are all decent people, and it is impossible for a head-on conflict to break out in a place like this. So they each sat down separately, emphasizing the importance of being out of sight and out of mind. "Lao Fan, how long do you think...their airport will have to be closed?" Marin asked Fan Jimin in a low voice while pouring a glass of water for each of them. "It''s hard to say..." The latter took the water glass and drank it in one gulp, then shook his head: "Albatin Palace Airport has a lot of staff, and there are hundreds of ground staff alone. And I have observed in the past few days that their management level and organizational discipline are very poor, and those who have access to those unmanned target drones are far away. Its not just the ground crew in a specific range...if we screen them one by one, Im afraid it wont take ten days and a half to complete..." "So long?" Compared to Fan Jimin, Marin is still young after all: "Do we need to contact the country?" Because they were in the Dassault delegation, the status assigned to them before they came out was considered as overseas personnel, rather than simply going abroad for business. The restrictions are much smaller. But even so, if contact is lost for a long time, problems will arise. "Let''s see what''s going on first." Fan Jimin was not too anxious: "With such a large investigation scope, they don''t seem to want to make a big fuss. Let alone looking for evidence. As long as the person who did it doesn''t take the initiative to blow himself up, it''s impossible to even find the suspect..." "I guess they might still want to make a show of it so that they can explain things internally..." Not far away, after Mavita calmed down, his clever IQ gradually regained the high ground. The more he thought about it, the more he felt something was wrong. Even if the leading people on the other side have extraordinary psychological qualities, they can remain calm in the face of a sudden test failure. But the same cannot be said for everyone else in the delegation. However, after the two parties separated, he observed the atmosphere on the other side of the reception room and still couldn''t see anything unusual at all. After thinking about it again and again, Mavita felt that she could no longer sit here and wait for the result. For this selection task, IAI established a small-scale office in Abu Dhabi. He was going to go back there and meet up with Elan Copus to analyze the situation in front of him. By the way, I would like to contact my superiors who are waiting for news in Tel Aviv. Thinking of this, Mavita decisively took out her mobile phone and called the driver waiting outside the airport. Then he stood up and prepared to leave. Almost subconsciously, before taking steps, he glanced in the direction of the Dassault delegation in the distance. But I don''t know if it was a coincidence, but the two Chinese people just raised their heads and looked in his direction. There was no hint of concession in his eyes. As a result, the eyes of the three people intersected in mid-air for a moment. In contrast, Mavita, who was peeking out of the corner of his eye, was inferior. This once again stimulated his extremely sensitive nerves from just now. So, Mavita decided to say goodbye to the other party as a winner before going out. After all, if nothing else happens, there should be no chance for everyone to meet again in the future. Before Mavita could take a step forward, the phone in her pocket suddenly rang. The sound echoed in the quiet and empty reception room, making it extremely harsh. He had to take out his phone. Before pressing the answer button, he did not forget to look over there provocatively. However "Manager, the airport is blocked." The first words that came out from inside made Mavita feel like he was struck by lightning. "Blocked by...blocked?" He quickly lowered his voice, but still couldn''t hide the trembling in it: "When did it happen?" "Right now." The driver on the other side also sounded a little nervous: "I drove in and found that the gate guards had been replaced by soldiers wearing camouflage uniforms. They told me that there was a sudden security threat at the airport, so I could go in, but I couldn''t leave until the blockade was lifted..." Mavita couldn''t hear the rest of it clearly. "boom-" He only felt his blood surge and his mind went blank. Even the vision becomes blurry... Fortunately, he didn''t have time to take a step forward, so he just slammed his whole body back onto the sofa with a bang. For a while, Mavita felt as if his soul was out of body and didn''t know what happened. In short, when he regained consciousness, he found that the call had been hung up on him at some point. "What to do now?" Mavita forced herself to calm down and began to review the situation in front of her. Security threats, he wouldn''t believe a single letter of this nonsense. If there is really a security threat, the first thing to do should be to evacuate people in the airport. Is there any reason to only let people in but not leave? In this case, it seems that there is only one possibility left - The Emiratis discovered the anomaly in the unmanned target drone in advance and are sealing off the site to search for the mole... At this moment, there were only four words left in Mavita''s mind. "We''re in big trouble!" But...how is this possible? On the one hand, he didn''t want to believe it. On the other hand, I really cant figure it out. In terms of dealing with the GCC countries, if Mossad considers itself second, no one will dare to be first. There should be no loopholes in the plan. This is not the first time they have done something similar. They are already familiar with it. And everything that happened before was in perfect line with the plan. There is nothing wrong with the execution level. After ruling out the first two possibilities, only the last explanation is left. "Did something go wrong during the test?" No matter how powerful the Kingdom of David is, they can''t let anyone infiltrate that plane. Therefore, he actually does not know what is happening in the sky. But it''s just as unreasonable. Unless targeted preparations are made for low-power forwarding interference, there is almost no obvious difference from self-interference/background interference based on the situation presented by the radar. Even if he is discovered, it should be some time later. From beginning to end, Mavita never considered that someone had already predicted all his predictions... I just feel like my brain is getting more and more dizzy. So, he decided to skip the question for now. Whatever the reason, the attempt to dig a hole into competitors during the testing phase has failed. The next more important thing is that the other party cannot find out the ins and outs of the matter. He looked back at the door of the reception room, but did not find any heavy guarding or anything like that. Explain that your activities within the airport are still unrestricted. This reassured Mavita a little. "Things may turn around..." "The other party may have just discovered some abnormalities, and may not have actually obtained the jamming device..." "Even if we get it, there is no evidence that we planted it..." He kept telling himself in his mind. Unless the UAE can obtain evidence, even if the worst case scenario occurs, that is, the jammer is discovered directly on the unmanned target drone, it will have to be left alone. This is the confidence that the Kingdom of David gave him. According to what the driver just said, the other party obviously didn''t want to make a big fuss and chose a relatively low-key approach. Because of its special status, Albatin Palace Airport cannot be blocked for a long time. So, as long as the bribed informant can stand still and drag him to the airport and have to reopen it, nothing will happen... Once again, Mavita subconsciously looked in the direction of the Dassault delegation. The same two Chinese people. Like a statue. There was no change in her posture from before, and her eyes were still pointed in his direction. But this time, those two lines of sight were so dazzling. As a result, Mavita was like a balloon stuck by a needle, all its momentum was instantly released... (End of chapter) Chapter 1141 Thirty years in Hedong, thirty years in Hexi, don’t bully Chapter 1141 Thirty years in Hedong, thirty years in Hexi, dont bully... In the reception room, two groups of people who had no contact with each other made almost identical judgments. In fact, let alone them, even Sabah himself, who ordered the airport to be blocked and investigated, never thought that the problem could be solved in a short time... "Minister Sabah." Adjutant Hassan Dawasari pushed open the door and walked into the flight control department, which was temporarily converted into a control room: "I have informed the Royal Executive Committee of the situation. His Excellency the Crown Prince requires us to give the provocateurs a strong response in the shortest possible time. However, unless conclusive evidence can be found, we must still pay attention to the international impact..." At this time in 2003, the UAE''s international status was just a bit shaky. Backed by the two major organizations, the GCC and OPEC, it certainly still has influence. But if these two identities are thrown away, then as a separate country, it really has no sense of existence. To this end, two generations of kings and crown princes have been committed to building Abu Dhabi into a "Little London in the Middle East." It is the financial center of the Middle East and Near East. If this plan succeeds, the UAE will gain its own status externally. Internally, it also has the qualifications to be on an equal footing with Saudi Arabia. But the results of this plan have only just begun to show, and Abu Dhabi''s position is not yet stable. Competitors such as Doha and Riyadh are half a step behind but are still eyeing the competition. At this juncture, it is certainly not appropriate to casually offend a regional tyrant like David. Not to mention the other two Wuchang dads. But if you really give in and give in, it will also have the opposite effect. As a dignified member of the Al Nahyan royal family, if you dont even react when others take advantage of you, how can you make people feel comfortable putting their money and business on your territory? "knew." Sabah nodded slightly, but there was an undetectable mask of pain between his brows and eyes. This job can''t be offended by the three heads, it''s really not easy to do. But as a close confidant of the crown prince, he couldn''t just push it away. After reporting the situation, Davasari did not leave immediately. Instead, he took two steps forward and came to Sabah''s side: "Minister, according to the current efficiency, it will take about ten days at least to investigate all the people who may have come into contact with the drone. We can''t really keep those people locked up in the airport, right?" In fact, this is something that Davasari never thought about from the beginning. Logically speaking, if you have locked up foreigners, then there is no such thing as low-key screening. Just make a big fanfare and convince people to come over and make a quick decision and that''s it. If you really want to keep a low profile, then everything should be business as usual, and only a few capable personnel should be sent to conduct secret investigations. "Don''t worry, it won''t really be blocked for that long..." Although Sabah found it difficult, he was able to cope with it for the time being: "Albatin Palace Airport is a core node for high-level personnel''s foreign travel. If it is really to be blocked for a week or ten days, there will be no need for foreign protests. The domestic pressure will simply not be able to withstand..." "It will last until tomorrow night at most, so..." Originally, he wanted to say that it was a gesture to the outside world, otherwise others would think that our Abu Dhabi royal family was a fabrication, and then turn the investigation underground. But just as he started talking, he heard a rush of footsteps coming from the corridor outside the door. Immediately afterwards, Major General Said Anbar, dressed in military uniform, rushed in with great strides: "Mr. Sabah, we have caught him!" For a moment, the atmosphere in the whole room was somewhat tense. Sabah: Davasari: The former has never thought about catching people from the beginning, which makes him feel a bit at a loss. The latter only heard half of what he said just now, and thought that what his minister wanted to say was that he could catch people until tomorrow night at most. At this moment, he looked at Sabah with burning eyes. Although he didn''t speak, his eyes showed something like "Awesome, Minister". Anbar, who was full of joy just now, looked at the two people in front of him, and the smile gradually solidified on his face. "Don''t tell me I arrested the wrong person?" There was also some drumming in his heart. "Ahem" After a long silence, Sabah, who had the highest status, spoke first: "How did you catch it?" The real owner was found out so easily that he had to suspect that this person might just be thrown out as a hidden stake. Just let them think that the situation has calmed down, and then hastily end the investigation. Anbar shrugged and explained: "It''s a coincidence that after you ordered the airport to be sealed off, Minister, a ground team quickly reported to us that someone had left and not returned. Almost at the same time, our people intercepted a person who wanted to leave at the E4 vehicle exit. Compare Later I found out that it was the ground staff who ran away..." Obviously, this is a time difference. As soon as the drone was controlled, the other party should have realized that something was wrong and found a reason to run away. Naturally, he didn''t know that all entrances and exits had been blocked. But because the Albatin Palace Airport is so big, before he actually left the airport, Anbar''s men were already in place, just in time to stop the unsuspecting man who was preparing to leave as usual... "All right" Sabah sighed. I don''t know if it''s relief or just helplessness. "Don''t withdraw people yet. Let''s check that guy first and see who contacted him. The sooner the better..." Now that things have reached this point, there are no obstacles behind it. The UAE is an absolute monarchy. The constitution clearly stipulates that the status of the royal family and civilians are different. I am suspected of premeditating a case against the Crown Prince. Can you provide me with evidence? Laughing to death. After the suspect is identified, do you want to know about the great memory recovery technique? Those who can be bribed with money are unlikely to be die-hards. They didn''t even last half an hour, and they were told to do all the things that needed to be done. An hour later, the interrogation record with signatures and fingerprints was placed in front of Sabah. "A cafe worker secretly contacted this person and gave him a deposit and the device to install into the payload bay of the drone before taking off..." "The other party and the prisoner promised that it was just a positioning and tracking device and would not threaten anyone''s safety. After the incident is completed, they will receive another reward..." "We have sent people to check that cafe, but we probably won''t find anything..." Anbar leaned on the chair in a rather relaxed posture, pouring water into his mouth while reporting the report. Opposite him, Sabah''s expression also relaxed significantly: "So, this should be the work of David, simply to gain an advantage in the competition with Dassault, and has nothing to do with His Excellency the Crown Prince?" Although in the battle in the intelligence field, the GCC was basically suppressed unilaterally. But as the saying goes, a long illness makes a good doctor. The more times you suffer losses, the more you will naturally gain experience. Even if you still can''t resist, you can at least recognize who did the job afterwards. Just like this time, the other party acted in a strong Mossad style. "That''s probably it...we''ve made things complicated." Anbar nodded, but in an instant he showed a little regret: "It''s a pity... At present, we have no other evidence except confessions. It''s probably not easy to arrest people from the Kingdom of Wei." For foreigners, you must not use the Great Memory Restoration Technique casually. Then we have no choice but to catch thieves and see the stolen goods, and catch traitors and see the couple. However, the members of the IAI delegation have not had direct contact with the arrested prisoner. Even if he has 10,000 reasons to suspect, there is no way to detain him. We can only suffer this hidden loss. "You don''t have to catch people..." Apparently, Sabahs opinion is somewhat different: "This confession alone is enough to prove that David''s unfriendly behavior violated our country''s rights and interests during the bidding process... According to general custom, the problem can be solved through diplomatic means." As he spoke, he took out a piece of official paper and wrote a few names on it with a pen: "Let''s go find His Excellency the Crown Prince together..." That evening, Sabah reappeared at the door of the VIP reception room with a smile on his face. As a comparison, behind him is Major General Said Anbar with a serious face. This surprised both groups in the reception room. They originally thought that the entire investigation would last at least a few days. Even if it ends early, it should only be after pressure or protest. But within just a few hours, things seemed to have turned around... It wasn''t until Sabah and Anbar entered the door that everyone noticed that they each held a folder of the same style in their hands. Only the color is different. The former walked straight towards the direction of the Dassault delegation without stopping and sat on one of the sofas. "First of all, I would like to express my personal apologies for bringing you some unpleasant experiences due to our work issues." Sabah first made a procedural apology, then opened the document in his hand and placed it on a coffee table surrounded by several people: "Thanks to your early discovery of the anomaly of the unmanned target drone, the selection work has not been affected and can still proceed as usual. However, His Excellency the Crown Prince hopes to discuss more specific transaction conditions with you in detail..." He didn''t lower his voice when speaking, so the whole reception room could hear it. Although Mavita was mentally prepared for the failure of the selection, when he heard the words "the selection work has not been affected", the fire of hope was inevitably rekindled in his heart. He couldn''t help but look towards Anbar who was walking towards him - Since two people are holding folders of the same style, the contents should be similar. "Mr. Mavita." Anbar had arrived in front of Mavita, but did not sit down. The latter couldn''t help but stand up and looked at the folder in front of him expectantly. until "Mr. Shaul Mavita." Anbar said, taking out a piece of paper from it, showing it in front of Mavita, and said in a cold tone: "We have obtained sufficient evidence to prove that you engaged in unfriendly behavior during the bidding process." "So, I regret to bring you a notice that you have been classified as an undesirable person in our country. Please take the initiative to leave our country within 48 hours, otherwise you will be forcibly deported..." He also didn''t lower his voice when he said this. It was also heard clearly by the entire reception room. The hope that Mavita had just ignited was instantly extinguished by a basin of cold water in his pocket. As for the Dassault delegation on the other side... Although they didn''t really laugh out loud out of dignity, they all lowered their heads and covered their mouths, unable to help laughing. For a moment, the two sides of the reception room were like heaven and hell, showing a strong and ironic contrast... Sabah naturally could not let this situation continue for a long time, so he quickly stood up and said: "Please follow me to the VIP exit. The motorcade is ready and will take you directly to the National Palace..." Before leaving the VIP reception room, Fan Jimin suddenly stopped, turned around and came to the ashen-faced Mavita, shook hands with him in a pretense of friendship, and whispered: "Mr. Mavita, I hope you have learned enough from the Ring Project..." After saying that, he patted the other party''s shoulder gently, and then strode out of the door... (End of chapter) Chapter 1143 We cant let the Chinese people be so arrogant (two-in-one) Chapter 1143 We cant let the Chinese people be so arrogant (two-in-one) In the end, the investment plan for the United Arab Emirates was not discussed. But fortunately, it didnt stop there In the international environment of 2004, it is a very valuable opportunity to have such a market that is friendly to China and has a relatively benign environment proactively extend an invitation. It is basically equivalent to a novice village, allowing Chinese companies that are willing to "go global" to avoid facing hellish difficulties from the get-go. Therefore, Chang Haonan and Li Zhongyi finally reached the conclusion that they would not make any large-scale publicity about the matter for the time being, and first, in the name of the four equipment industry departments, require related enterprises and research institutions to analyze the achievements made in recent years and the short-term We will summarize the results that may lead to breakthroughs within a certain period of time to see if we can screen out projects with potential for investment in the Middle East. At the same time, Li Zhongyi will use his past connections in the petroleum system to strive for overseas investment in incremental oil and gas projects. Such a two-pronged approach will give priority to showing sincerity and stabilizing the mentality of the UAE. When the time is ripe in the future, domestic companies will be encouraged to go overseas on a large scale. However, Li Zhongyi was still a little unwilling to do so. Before Chang Haonan was about to leave, he asked again: "Counsellor Chang, is it really impossible to achieve foreign investment or cooperation in the aviation industry through this early warning aircraft project as we have done several times before?" Chang Haonan sighed lightly: "If possible, I would also like to use this familiar method." "But if I remember correctly, the UAE has a population of less than 4.5 million, and except for two urban areas where land is at a premium, it is almost all desert... Under these conditions, it is impossible for people to develop industries other than petrochemicals. Not to mention aerospace manufacturing, which has very high requirements for land and worker quality..." In fact, Li Zhongyi knew it very well in his heart, but there were some things that he had to tell others before he would give up. For a leader of a department at the Industrial and Construction Commission level, it is almost impossible to find another example where Ding Gaoheng has been in charge of the same system for more than 20 years. Therefore, he still hopes to produce at least a phased result during his tenure. Otherwise, it would be all about making wedding clothes for others, which would still be a bit uncomfortable. "All right" Li Zhongyi showed a slightly regretful expression, but still got up and saw off the guests in person... Compared with the cheerful posture here in China, the atmosphere in a white house on the other side of the world is a little not right. In the splendid Oval Office, Mr. Bush was holding his forehead with one hand, leaning on the office chair with his head half-slouched, as if his body had been hollowed out. Logically speaking, as a politician, 58 years old should be in his prime. But the current situation is not optimistic for him or the entire Xiang Party. The first is that the war situation, which seemed to be a good one a few months ago, suddenly took a turn for the worse after entering 2004. Because Paul Bremer, who was directly appointed by the White House, was completely inactive, which led to uprisings across the Mesopotamia and the Mesopotamia, completely dispelling all previous illusions about allowing the U.S. military to go home for Christmas in 2003. The first Battle of Fallujah two months ago was an even mess, which almost destroyed the confidence of the Marine Corps, but still only 800 out of 400 militants were annihilated. Not only has it failed to improve security in Anbar Province, it has instead led to increasing chaos in the region. As the public becomes increasingly desensitized to the attack three years ago, opposition to the use of foreign troops has grown. Naturally, the media controlled by the Donkey Party cannot let go of this opportunity. They edited together footage of the president''s speech announcing victory in the war a year ago on the USS Lincoln aircraft carrier with footage of the tragic battle in Fallujah, and scrolled them through various media to highlight a slap in the face. Secondly, the differences of opinion within the Elephant Party are almost exposed. Powell and Cheney are almost out of control. Although the identity of security adviser Condoleezza Rice is useful, her ability is really lacking. The entire The leadership team is in a state where there are no generals in Shu, and Liao Hua is the vanguard... The only good news is probably that the economic situation is slowly emerging from the shadow of the Internet bubble and the Asian financial crisis, and has entered a phase of relative prosperity. But this is only compared with previous years. If we compare it horizontally with other major economies, the growth rate of 3%-4% for six consecutive quarters is not satisfactory. Although statistical magic has been used to push the paper employment rate to a new high since the Cold War, this kind of thing can deceive outsiders, but it is obviously of little use to the people who really hold the votes. Especially against the backdrop of the European Union and China next door, Mr. Bush looks even more like a wimp who only knows how to be militaristic... In short, the current election situation is not optimistic. Almost all forecasting agencies believe that the Donkey Party will regain the White House. This is really unbearable for him who comes from a powerful family and whose career has always been smooth sailing... Just when Xiao Bushu was emoing alone, a phone on the table suddenly rang. It wasn''t until a few seconds later that he reluctantly moved his body and picked up the receiver. It''s like a computer that has been pressed on but is unresponsive. "Your Excellency, I have an important document here." Undersecretary of State John Robert''s voice rang on the other end of the line. "Come in." In any case, he still had the basic awareness of being a political figure, so he took a deep breath and quickly readjusted himself. Its just that the fatigue caused by long-term lack of rest is difficult to completely cover up... Soon, Bolton strode into the Oval Office and placed a document on the desk in front of the bush: "Your Excellency, Abu Dhabi and Tel Aviv have signed a memorandum of understanding. We don''t have to worry about problems between them for the time being..." "Okay...I get it." The latter said as he opened the file and quickly glanced at the contents: "Finally, a big trouble has been solved...it''s gratifying." Although he said this, his expression did not relax at all. Even when I saw the details on the second page, I frowned slightly That was the part about the Kingdom of Davids commitment to the UAE. Thanks to his many years of experience in "serving" Bush and his son, Bolton guessed his leader''s thoughts almost instantly. The United States now has a trend of "cannot win and cannot withdraw" in the Middle East. Considering domestic public sentiment, its future strategy will definitely rely more on the role of the GCC. At this juncture, it is obviously not a good thing for allies to engage in internal fighting. So, he quickly added: "After the meeting, I have clearly warned Silvan Shalom of the David Kingdom to keep a low profile at least until the end of this year''s election, otherwise if the Donkey Party comes to power, many things may get out of control..." The face of the little bush opposite changed slightly, but the worry in his eyes did not fade away. In fact, what he was worried about wasn''t what was in front of him. But the situation is more long-term, ten or twenty years from now. Since the 1960s, the Davidic State has been Washington''s main lever to control the situation in the Middle East, and it is also one of the most important strategic assets in the region. However, with the end of the Cold War and the euro beginning to threaten the international status of the US dollar, the priority of the GCC countries in the diplomatic sequence has been rapidly increasing in recent years. Under such circumstances, the Davidic Kingdom, which has a strong willingness to cause trouble, is transforming from the most important strategic asset to the most troublesome strategic burden. From a rational point of view, it should be cut off as it should be. However, the huge investment in the Kingdom of David in the past has formed an extremely strong interest relationship in North America. The food and clothing of millions of water workers cannot be changed by anyone''s personal will. It even gave the former the ability and ambition to turn against customers. If this continues, the United States may be dragged into the quagmire by the other party... Looking at the leader who had a gloomy face and said nothing, Bolton finally became impatient after waiting for a few minutes and called out softly: "Your Excellency, President?" Awaken the little bush from brainstorming. The latter knew that at this critical moment of the general election, the Davidic issue was a high-risk slide that could not be touched, so he quickly changed the subject: "Oh...I''m not thinking about the Kingdom of David." "That" Bolton is also well-intentioned and wants to share the worries. But for the little bush, he had to make up a reason. As usual, every time this happens, one country needs to take the blame: "I''m worried about the Chinese side." "In the final analysis, the trouble this time was caused by someone stepping in from the middle...Including during the Allied Forces Operation in 1999, they were also the ones who took action just when we were about to defeat the euro and forced the euro to collapse. The exchange rate should always remain above 1, otherwise there would be so many troubles..." The little bush was just saying it casually, but as soon as he opened his mouth, it was like a landslide, unable to stop the car at all: "Further back, when Boeing and McDonnell Douglas merged, they colluded with Europe and almost ruined the entire merger..." "Throughout the 1990s, if the Chinese had not disrupted blood transfusions, it would have been impossible for the Russians to recover so quickly..." "besides" In short, after taking stock of the "glorious deeds", they were directly added to the heinous pile. Of course, the little bush is not smart enough, but he still has basic common sense. After China entered the international trade system, he was definitely one of the biggest beneficiaries. Especially in the past few years since taking office, without the large amount of cheap industrial products exported by China, it would be difficult to guarantee an economic growth rate of 3-4%. Therefore, after a good spray on his mouth, the refreshed little bush was not really ready to do anything. Just put away the documents and prepare to go back to rest. But after Bolton heard this, his eyes lit up. As a pure-bred hawk who once said, "The relationship between the United States and the world is that of hammer and nails, and we will hit whoever we like to hit," he has been unhappy with China for a long time. Its just that for a long time, leaders have not taken the initiative to take the lead, and subordinates have not been able to really do anything. However, today, he got a chance. I saw Bolton patting the armrest of the seat: "You''re right, we can''t let the Chinese people be so arrogant!" It almost startled the little bush. However, looking at his prepared look, the latter thought about it and sat back on the chair again: "Tell me what you think?" "We should strike hard in all fields to punish Chinese companies, organizations and individuals who oppose us!" Bolton''s words were so shocking that he almost choked to death on his first sentence. The little bush quickly waved his hand: "Our economy is deeply tied to China, and this will cause us to be affected too..." Bolton continued almost without thinking: "Then we''ll target the areas where they are weak but deadly enough. Take it as a warning..." Obviously, his initial proposal was not serious. It''s just a common practice to lift the roof first to make it easier to open the windows later. And even if you know about this top-level conspiracy, there is nothing you can do about it. Sure enough, Little Bush also became interested: "So...you already have a plan." This is not a question. Bolton nodded: Last year, we won a lawsuit at the WTO, so that Chinese soybean growers will no longer be able to use the varieties they previously planted starting this year, and it will take time to submit appeals or re-breed... It is expected to be until 2007 , Chinas soybean production will be at a relatively low level. "To this end, they have been in frequent contact with ADM, Bunge and Cargill in the past six months, hoping to purchase at least 14-15 million tons of soybeans in the next few years, and just as it happens, according to our weather department forecasts, Illinois, Iowa China, Missouri and Indiana will all face relatively dry weather in the next two years..." The Bush family is a farmer from the central part of the country and is extremely sensitive to these things: "Are you saying that you can make a fuss about the dry weather and raise the futures market price by hyping up the risk of soybean production reduction, inducing Chinese people to buy at a high price, and then release a large amount of goods during next year''s production season?" "That''s right." Bolton was so excited that he raised his hand and snapped his fingers: "Conservative estimates suggest that if this round of operations succeeds, 85-90% of domestic soybean companies will go bankrupt next year or the year after that. By then we will be able to control the entire industry at extremely low prices..." Obviously, compared to the previous crazy idea, this plan is very feasible. Moreover, when China joined the WTO, it made huge concessions in non-staple agricultural products. In other words, the soybean market is almost completely free in China. This also gives them plenty of room to maneuver. However, the little bush is still a little hesitant: "But they still have reserves after all, and Louis Dreyfus is a French company after all..." Since Bolton could propose this ruthless and precise plan, he had naturally studied these details in depth: "I have calculated based on their production and purchases over the years. The existing reserves cannot support the national consumption for a whole year. More importantly, the amount of cultivated land of the Chinese people is there, and most of it is used to maintain staple food. If they are self-sufficient, it is simply impossible to have enough area to grow cash crops. Unless they can create arable land out of thin air, reserves alone cannot support market confidence..." As for Louis Dreyfus He hesitated for a moment, but quickly became firm again: "On the one hand, the French are not philanthropic. Once they realize that the soybean market is profitable, they will definitely stand in the same camp as us... On the other hand, Louis Dreyfus does have full say in the wheat market, but soybeans Its definitely up to us! With the agricultural output in the United States, Bolton can indeed have this confidence. For a moment, Xiao Bushu''s expression was uncertain. Rationally speaking, it seems that we should not create extraneous problems at this critical moment in an election year. But the cycle of agriculture is measured in years, or at least in quarters. If we don''t take action now, it will most likely be too late. Therefore, after thinking again and again, he finally narrowed his eyes: "Contact the Minister of Commerce and ask him to come to my place tomorrow..." (End of chapter) Chapter 1144 I suddenly had an inspiration Chapter 1144 I suddenly had an inspiration Although the Industrial and Construction Committee has completely separated itself from the color of a military organization, it is still reorganized from the old team of the National Defense Science, Technology and Industry Commission. The middle- and grass-roots cadres are only partially adjusted within the ministry, and the original operating structure is basically maintained. Therefore, when the document requiring centralized reporting of research results was distributed, the response of the subordinate units was quite rapid. In just half a month, hundreds of projects that relatively met the requirements were applied. Even if we exclude some fake projects that are obviously designed to defraud subsidies, there are still nearly 200 projects with real development prospects. However, when Chang Haonan was once again invited to the Industrial and Construction Committee meeting room by Li Zhongyi to review the declaration contents one by one, he still felt a slight headache - Anyone who has actually done research knows that in most cases, a topic is "promising" and "can be implemented" are two different things. From the time a technology is proposed to when it is finally ready for users, the research topics involved range from hundreds to thousands to countless. Among them, there may only be a few or a dozen that can really play a driving role and can be called core. As for the rest, it''s like the change you took out when buying a house. You certainly can''t say they are useless. But it can only be regarded as the icing on the cake. When the foundation is established, it can indeed exert some auxiliary effects. But relying on these things alone is impossible. Professor Chen Zuyu, another consultant to the Industrial and Construction Commission, was the first to break the silence: "Let me see, the most useful technologies for Arab countries are those related to seawater desalination..." "I checked the information before coming here today. Not only the United Arab Emirates, but also countries in West Asia and North Africa such as Saudi Arabia, Oman, and Libya, there is no permanent natural river in the country, and the conditions are relatively wealthy. It can be said that there is a demand for seawater desalination technology. Its the highest in the world Hearing these words, several other people in the conference room showed surprise. Its not that theres anything wrong with the content. But the person who said it was wrong. Water shortage is not just a problem in the Middle East. China also exists. However, it is manifested in the form of uneven distribution of water resources. Therefore, for a long time in the past, ideas for solving the water shortage problem in northern China have been divided into two schools: South-to-North Water Diversion and seawater desalination. The former is a long-term project that has been tried and demonstrated since the early days of the founding of the People''s Republic of China. If it were to be carried out on a large scale, the amount of work would be unimaginable, and it would inevitably cause large-scale immigration. The latter is a technology that was developed later, with high capital investment and technical risks, but it is a research hotspot. In the 1960s and 1970s, there was also a seawater desalination battle, and it has already been implemented in several coastal areas such as Tianjin. The city has launched some pilot projects. As an expert in water conservancy, hydropower and civil engineering who was just one step away from being elected as an academician last year, Chen Zuyu has always been a strong promoter of the South-to-North Water Diversion Project. To hear words of support for desalination projects from his mouth is really because the sun is rising in the west. Chen Zuyu probably saw what everyone was thinking, so he showed an enigmatic smile: "I, Old Chen, am not a pedantic person... The reason why I struggled with seawater desalination in the past was mainly to really solve the problem of water shortage in the north. I was not really biased against the technology itself... Now since there are large families in the Middle East who want to use it, , that can be regarded as allowing past research to find an opportunity to use its remaining heat, haha..." After finishing speaking, he glanced in Chang Haonan''s direction with some deep meaning. This somewhat abrupt look made the latter stunned before he could speak. He thought to himself that he and Professor Chen should have never had any disputes. He thought that the other party wanted to hint to him, so he followed his gaze and looked Went back. Then he noticed Academician Gao Congjie sitting next to him. It suddenly dawned on me. As the saying goes, enemies never get together. Academician Gao Congjie happens to be an expert in the comprehensive utilization of seawater and membrane separation. He was one of the big guys who previously promoted the seawater desalination route. In fact, with the review and adoption of the South-to-North Water Diversion Project Master Plan a year and a half ago, the dispute between the two sides ended with the South-to-North Water Diversion overall victory. As for Chen Zuyu, who has already confirmed victory, he certainly doesn''t mind releasing some goodwill on this occasion. It can also eliminate some resistance for yourself in the next academician selection. Otherwise, if the tit-for-tat confrontation between the two sides continues, he may have to wait until the first phase of the South-to-North Water Diversion Project is completed before he can make enough hard contributions. But the cycle of such a large project often counts in ten years... The agony of waiting is still there. The key is that there is still a chance that we wont be able to wait until that day "Come on, Old Chen, my family knows their own affairs..." Gao Congjie smiled and waved his hand: "When we proposed seawater desalination, we planned to rely on the large number of coal-fired power stations in my country''s coastal areas, as well as the planned nuclear power stations, to use waste heat to supply energy. It is impossible to burn coal in the Middle East, and our country is not good at fuel and gas. Boiler related technologies "Unless you can convince those oil-producing countries to build nuclear power plants in large quantities, even they will not be able to provide the energy for desalination..." Although he said ungrateful words, Chang Haonan, who was sitting nearby, could see that his expression had softened a lot compared to before. It seems that these two people really have no personal hatred. "Academician Gao, is it possible to transform the other party''s existing power facilities..." The opinion just put forward by the former has obviously been recognized by many people. For example, Li Zhongyi, who was sitting in the first place, quickly asked. "It''s hard." This time, Gao Congjie responded very decisively: The co-production of desalinated seawater by power plants needs to be considered from the early stages of design, and the boilers also need to be adapted accordingly... The amount of work required to renovate an old power plant is almost the same as building a new one, and we cannot expect Siemens or General Electric to cooperate with us in this regard. But Li Zhongyi is still a little unwilling to give up: "In recent years, Academician Chang and his colleagues have come up with some great ideas in the field of gas turbines for power generation. Is it possible for you two to cooperate..." Chang Haonan, who was suddenly cueed, quickly dismissed the other party''s bold idea: "On the one hand, the models we currently put into production are all light-duty power generation gas turbines used in oil fields or natural gas fields, which cannot meet the needs of large and medium-sized power plants... On the other hand, there is a big difference between gas turbines and boilers in terms of energy recovery and utilization, which is impossible. Directly transfer the technology of Academician Gao and use it..." "Compared with this, it is better to hope that the international environment will change or our country''s nuclear energy utilization technology will make a breakthrough. When the time comes, the nuclear power plants will be built in the Middle East countries, and the seawater desalination technology will be convenient. Its something The gas power station itself will be equipped with a waste heat boiler-steam turbine as a supplement, and even wealthy people cannot rely entirely on gas turbines to supply urban electricity. In the end, Gao Congjie took the initiative to change the topic to prevent Li Zhongyi from continuing to think in this less interesting direction: "If you ask me, Director Li, your old profession is more suitable..." Such a sentence really took away the latter''s attention instantly. Seeing this, Gao Congjie simply continued: "For so many years, Gulf countries have always exported crude oil, with very little refined oil products, let alone more complex petroleum industry products." "But even if they guard the oil fields that cannot be fully exploited for a century, they cannot continue like this... I saw that the report also talked about the demand for deep processing of oil..." The report he mentioned was naturally the one Chang Haonan saw half a month ago. It does mention investment in chemical industry at great length. The only problem is that Big Chemical looks simple, but the inherent technical difficulty is not low at all. Even China''s own petrochemical industry relies heavily on foreign countries for technology, equipment and funds, and there are not many areas in which it can carry out export projects. Of course, one good thing about the chemical industry is that its product categories are extremely rich. Therefore, everyone did not pour cold water on them immediately. Instead, they each found several related research directions from the list and began to compare and analyze the feasibility. Atmospheric and vacuum pressure, light hydrocarbon recovery, high propylene catalytic cracking, carbon dioxide recovery, full density polyethylene, ethylene oxide/ethylene glycol... Because he studies computational materials science, Chang Haonan is somewhat familiar with the molecular properties of these basic organic compounds, but in the end he is not an expert in the chemical industry. So he didn''t want to get into anything too in-depth, he just took a quick look at it. It mainly includes the basis for selecting the topic, current research status, and technical route. Just read the story. But even Chang Haonan himself didn''t expect that he would really be able to tell something about it at such a glance. "Carboxyl groups can form strong chemical bonds with inorganic salt ions on the surface of the base layer..." "The double bond structure of the vinyl group in the molecule makes the molecule more polar, making it easier to form hydrogen bonds with water molecules, showing hydrophilic characteristics. At the same time, the fatty acid group on the other end shows strong hydrophobicity. This paragraph is mentioned casually in the application as a research background. The real focus is on the subsequent process part, which is claimed to reduce energy consumption by 45% compared to existing technology. It''s the kind of project that doesn''t look very reliable at first glance. But the previous words gave Chang Haonan a flash of inspiration Since the end of 2000, he has gathered several related research groups and started research on desert modification in western Mongolia Province. Now that four years have passed, it cannot be said that there has been no progress, but it is indeed still quite far away from practicality. The greatest value may be that it allowed Professor Zhuang Bingchang to stay in Ji Province and not die accidentally at the hands of two gangsters like in his previous life. But when it comes to other results, they are indeed somewhat lackluster. Mainly from the very beginning of the theory, it was clear that a curing agent with sufficiently special properties was needed to introduce an initial "universal binding constraint" to the discrete sand particles, and then transform them into ones that could recover autonomously through the action of plant roots. Consolidation constraints. But anything related to agriculture will inevitably be affected by the weather. In the latitude of Mongolia, planting can only be carried out in two rounds a year at most, and there will not be many sets of comparative experiments in four years. Therefore, the efficiency of screening curing agents is very slow, just like finding a needle in a haystack. But if you open your mind and actively design a polymer molecule so that it can have a long chain or cyclic hydrophobic structure as the main chain, and at the same time have more hydrophilic groups and active groups at the end of the branch chain, It can wrap and cross-link with the surface of soil particles to strengthen the soil... As for this technology, lets not talk about other things. For those countries that are almost entirely in the desert, it is obviously attractive. And there is obviously no shortage of investment in technologies that interest oilmen... Thinking of this, Chang Haonan immediately put down the application form in his hand: "Director Li, I don''t think the feasibility of these applied projects is very high...but I personally have an idea." In an instant, more than a dozen eyes focused on him. "Perhaps some comrades have heard that I have a research project on desert soilization in Mongolia Province?" This time, it was Luan Wenjie, the deputy director, who reacted first: "I have the impression..." "When the Shenzhou 2 and Shenzhou 4 missions were launched, it seems that three batches of seeds were specially brought to space for you?" At first, Zhuang Bingchang was forced to do space breeding, so Chang Haonan approached Luan Wenjie for help. It was also at that time that he took over the task of designing the screening algorithm for Ocean One, thus beginning to indirectly get involved in the aerospace field. It can be considered an old thing. When Luan Wenjie mentioned this, Li Zhongyi also nodded: "But I remember that there was never much investment in that project. In theory, it seems that it is still in the feasibility study stage..." But Luan Wenjie''s eyes lit up. He knew very well that it was not unusual for Chang Haonan to do everything right before officially establishing a project. At least that was the algorithm of Ocean One back then. "So...you''ve made some progress there?" "Not yet." Chang Haonan quickly waved his hand: "It''s just that I suddenly had an inspiration, so I wanted to take a short break to verify it..." (End of chapter) Chapter 1145 The final piece of the desert transformation puzzle Chapter 1145 The last piece of the desert transformation puzzle Take a break in the middle to verify the sudden inspiration. Listen, does this sound like what people say? The last person who used this sentence pattern and was widely circulated was probably Guan Erye when the eighteen princes challenged Dong. "Pour down the wine. I''ll come as soon as I leave." Fortunately, this kind of internal closed-door meeting actually has no adjournment. Everyone is leaving today, just meet up another day. Considering that the person who said this was Chang Haonan after all, everyone finally accepted his request. After leaving the Industrial and Construction Committee, Chang Haonan contacted Zhuang Bingchang almost immediately. Fortunately, the latter was not cultivating the latest batch of sand-fixing crops at the Jilin Provincial Academy of Agricultural Sciences instead of testing fields in the deserted Mongolia Province. Therefore, I was able to fly to the capital overnight with the research results so far... When Zhuang Bingchang arrived at the Torch Laboratory, Chang Haonan had just finished working all night and returned to the office Although the degree of polymerization and group ratio of the polymer have not been completely determined, after one night of calculations, he has at least determined the feasibility of the idea of ??hydrophobic main chain + hydrophilic groups. We even got some unexpected surprises in the process... As soon as the two met, Zhuang Bingchang took two steps forward enthusiastically: "Academician Chang, I finally have the opportunity to congratulate you in person on your successful election..." Chang Haonan has basically been active in Beijing and Haojing in recent years, while Zhuang Bingchang''s workplace is in Mongolia and Jilin provinces. The two of them usually communicate through emails and phone calls, and they only see each other once every year when reporting. But because at the end of 2003, Chang Haonan was in a hurry to go to Haojing to deal with the project, so we actually didn''t see each other for two years. During the chat, Zhuang Bingchang also inadvertently revealed that his hometown had hoped to introduce him back to Changyang Agricultural College as a talent a few years ago, but considering that many half-finished research projects are still in Jilin Province, and with Chang Haonan The cooperation was also in the name of the Jilin Provincial Academy of Agricultural Sciences. It was too troublesome to change places in the middle, so I finally refused. Chang Haonan dealt with it cheerfully, but he said in his heart that it was a good thing you didn''t go back, otherwise if something unexpected happened, all my hard work over the years would have been in vain... After some pleasantries, the two finally got down to business: "Professor Zhuang, to what extent is your crop breeding...probably?" Zhuang Bingchang is well-known in the industry as a soybean breeding expert, but in fact, his team no longer only focuses on a single crop. In particular, the resources provided by Chang Haonan, no matter how few, are still richer than when he was at the Academy of Agricultural Sciences, so he actually led several teams from different institutions to select multiple types of soil-fixing and plants at the same time. Zhuang Bingchang also quickly got into the mood when talking about business. "It went much smoother than expected..." As he spoke, he took out a notebook with obvious signs of use and a USB flash drive from his briefcase After entering the 21st century, things like floppy disks finally gradually withdrew from the stage of history. Chang Haonan plugged the USB flash drive into the computer, which contained dozens of test record files. We have optimized several crop varieties with outstanding root strength, including Elymus elegans, naked oats, and Artemisia vulgaris... The roots of this type of plant can produce friction reinforcement and grid wrapping effects on the soil, providing additional cohesion while reducing the lateral shear force on the soil. Zhuang Bingchang easily opened the notebook to the page he wanted, and pointed out the data recorded on it to Chang Haonan: "In addition, the hydraulic effect of the plant itself can also regulate the transport and exchange of soil moisture between the atmosphere, plants and soil, and change the shear strength of the soil... In other words, it can directly enhance the tensile strength you mentioned before. Toward binding binding force After two to three rounds of improving soil conditions, we can use the drought-tolerant, salt-alkali-tolerant alfalfa and soybean varieties we are cultivating to start restoring land fertility Upon hearing this, Chang Haonan immediately interrupted the other party: "You mean, the previous three rounds of space breeding...are considered to have yielded results?" The effectiveness of space breeding basically depends on luck. Although with a large enough base, it is always possible to find a few mutant traits that are beneficial to human agriculture, but if two requirements are specifically selected, the probability of success is actually not big. Therefore, before this, the breeding work of these two types of leguminous plants was also another long-standing difficult problem in addition to the screening of curing agents. "That''s right..." Zhuang Bingchang nodded hesitantly: "We were lucky. Among the second batch of seeds that came back, we found several typical traits that we had been looking for before. We also happened to find wild soybeans that met the requirements during that time. What''s even better is that they did not contain Monsanto''s application. Patented marker gene..." "It''s just that the varieties currently cultivated have strong survivability, but they have almost no yield..." Obviously, as a crop breeding expert, he still hopes to find products that have both economic and ecological benefits. But for Chang Haonan, who is in urgent need of results, this is already an unexpected surprise. "That''s enough...that''s enough." Chang Haonan raised his hand slightly to indicate that this was not a problem. Then he continued to ask: "Have you ever conducted a full process test of the entire improvement plan?" "Did." Zhuang Bingchang replied: Since the year before last, we have conducted modification tests in 14 areas in western Mongolia Province, and it has now reached the third round... The main problem discovered is that this process can only be used to save the desert that has not completely degraded. existing cultivated land or grassland, but nothing can be done about the completely degraded sandy land. We have tried to use several typical materials such as polyacrylate, vinyl acetate, and polyacrylamide for chemical sand fixation, but the first two materials will lose quickly after absorbing enough water, resulting in a reversible sand fixation effect...Polyacrylamide and polyacrylamide Although lactic acid can be used after absorbing water, it can only provide a binding moment once. Once it loses water during the curing process, all previous efforts will be wasted..." Normally, as the person in charge of the project that he directly leads, it is impossible for him to show too much pressure in front of his colleagues. Even if something went wrong during the experiment, he would have to take the initiative to relieve everyone''s stress. But in front of Chang Haonan, there was no such concern at all. Therefore, this complaint can be said to be very happy. Listening to the difficulties mentioned by Zhuang Bingchang, Chang Haonan remained expressionless at first. But at some point later, he didn''t hold back and smiled directly. This scene frightened Zhuang Bingchang who was finishing the report: "Academician Chang, you..." "nothing" Chang Haonan waved his hand: "It''s just that I can help you put together the last piece of the puzzle that you were missing before..." "Um?" The worry in Zhuang Bingchang''s eyes instantly turned into surprise. You know, he was already mentally prepared to stay in Mongolia for more than ten years. "Come and see this." Chang Haonan said and opened another file on the computer. That was exactly the result of his hard work in the computer room last night: "According to my calculations, sodium carboxymethyl cellulose and polyacrylamide are used as the main materials, and after being configured according to a certain proportion, they can be cross-linked with other water-soluble polymers through physical cross-linking in the water system to provide a relatively High bonding strength and good hydrophilicity, thereby strengthening the universal binding force between loose sand particles. " "At the same time, because the long-chain structures of the two main materials are composed of hydrophobic groups, they can also ensure a certain degree of aging resistance and will not become a one-time sand-fixing agent like polyacrylamide." (End of chapter) Chapter 1146 The first phase of the project covers an area of ??40 million acres! Chapter 1146 The first phase of the project covers an area of ??40 million acres! What was originally thought to be a huge obstacle has now been solved with just one sentence. For Zhuang Bingchang, there are definitely surprises. But I still have more doubts in my heart. It''s not that I don''t believe in Chang Haonan''s level. It is true that the results given by the other party are a bit too accurate. Both base materials, especially sodium carboxymethylcellulose, are not a common curing agent used in such studies. It''s not even a common chemical product. Although "modified cellulose" belongs to a relatively popular category of biomass products, for now it can only be regarded as a promising future. To be able to specify a particular category so accurately must go through quite rigorous arguments. However, as the front-line person in charge of the experimental fields in Mongolia Province, Zhuang Bingchang knew very well that Chang Haonan had not conducted similar soil modification experiments Not to mention local. From 2000 to now, the latter has only asked him for soil samples twice. It''s not just for experiments, but for soil mechanics modeling and improving the geological surface database. So where did this argumentation process come from? Zhuang Bingchang, who was a little confused, hesitated for a moment and asked cautiously: "Academician Chang, it would be inconvenient for me to reveal why these two main ingredients are used?" In practice, of course it is inconvenient. Inspiration is inspiration, but being able to transform inspiration into concrete results in just a dozen hours is thanks to the help of the system. He directly skipped many unnecessary trial and error steps, analyzed and calculated the interaction between different hydrophilic/hydrophobic groups and the surface of soil particles at the molecular level, and finally screened out the best solution in terms of both cost and performance. A relatively balanced result in all aspects. Even for Chang Haonan himself, this process takes a while to fully digest. For outsiders, it is extremely tearing, and it is impossible for anyone to understand it. Fortunately, Chang Haonan had already thought of another explanation while waiting for the results. "A few years ago, didn''t we establish a soil database for various regions in Mongolia... A while ago, when I was routinely reviewing the literature, I found that foreign scholars used polyvinyl alcohol cured materials to conduct research on a soil with similar characteristics. Although the transformation failed, the failure cannot be explained by the direct polarity combination theory used in the past..." As he spoke, he opened a paper on his computer and the log file of the last round of calculations a few hours ago: "I used the soil database we established to conduct several theoretical reductions on his experimental results, and finally determined that there are four main mechanisms of action of water-soluble or semi-water-soluble polymers on sandy soil micelles." "First, by replacing cations on the surface of the micelles, the thickness of the electric double layer is thinned, increasing the attraction energy between particles, and promoting aggregation between particles; second, the carboxyl groups on the molecular chain and the hydroxyl groups on the soil surface form hydrogen bonds to strengthen the soil''s stability. Structural stability The third is that the hydrophilic groups of the polymer are adsorbed on the surface of the soil particles, and the hydrophobic groups repel the infiltration of water, thereby enhancing the water stability of the soil; the fourth is that the soil particles overlap each other through polymer chains to form a network structure, which further plays a role in Reinforcement effect. "After the main mechanism is determined, all that''s left is to perform calculations at the molecular level. This is a more time-consuming process, but fortunately the principle is not complicated... Just repeatedly sample the configuration space of the system particles, calculate the total energy, and then find Obtain the most probable conformation and thermodynamic equilibrium properties of the system..." This set of rhetoric highlights nine truths and one falsehood. If you come to an expert in computational chemistry or computational materials science at the same level as Chang Haonan, you may be able to hear some problems. For example, the last calculation process is a task that is simply impossible for today''s computers to complete within a limited time. Unfortunately, in this day and age, it may not be easy to find such a number one person. As for Zhuang Bingchang, who was born in agriculture, he gave up completely when he heard the middle part. He even felt a little regretful for the first time If I had known this, I should have studied mathematics in depth when I was young... But the feeling is almost fleeting. After all, if you cant do mathematics, you just cant do it. "All right" He decided not to delve into the issue further: "Then our next step is to go back to the experimental field and conduct sand modification tests in blocks?" In most cases, even if the main ingredients have been confirmed theoretically, the suspension system after the cross-linking reaction is still too complex, so the specific ratio and preparation method still need to be carried out through experiments. Of course, with theoretical guidance, the efficiency will definitely be much higher than aimless sifting. However, Chang Haonan gave a refusal almost without thinking: "No, don''t rush this yet." Zhuang Bingchang was about to get water when he suddenly froze: "Have you calculated the detailed ratio?" "That''s not true...I''m not that powerful yet." Chang Haonan smiled helplessly and quickly waved his hand: "It''s just that before you return to Mongolia, there is one more thing that needs to be done." Zhuang Bingchang curled his lips secretly, thinking not necessarily, what you suddenly brought out was not enough... But on the surface, he still acted like he was listening carefully. "With these current results, we can no longer stay in the small experimental field." Chang Haonan turned his attention back to the screen: "I am going to submit a report to my superiors to apply for increased investment in research and development of supporting technologies related to sand conversion, so I need your help to complete a report..." If Chang Haonan''s dual academician title has brought him any substantial benefits. So the most obvious one must be that he has the right to bypass the intermediate levels and submit suggestions or applications directly upwards. Of course, high-level leaders have a lot to deal with every day, so if you just use any trivial matter to cause trouble for others, don''t blame the secretarial department for blocking your materials. Most of the time, you still have to go through the normal step-by-step declaration process - But this time the project is related to the jobs of 1.3 billion Chinese people. It is simply not something that the Industrial Construction Committee can decide. Even on the attendance list for the project demonstration meeting determined half a month later, Li Zhongyi''s name could not even enter the first row of the list... Chang Haonan is already used to this. But Zhuang Bingchang is different. Although he was a relatively well-known professor at the Academy of Agricultural Sciences in the past, this was the first time he had experienced such a big scene... In the side hall temporarily used for rest, Zhuang Bingchang, who was about to take the stage, held a manuscript in his hand and kept pacing back and forth. "Academician Chang, if the leader later asks about the solidification principle..." Chang Haonan, who was sitting on the sofa, interrupted him with a wry smile: "Professor Zhuang, this is the third time you have asked me the same question in the past half hour..." "In short, you should remember that first of all, the leader is a layman in the fields of chemistry and agronomy, and it is unlikely that he will ask such a specific technical question. Secondly, even if he does ask, unless it is related to breeding, I will answer it... You just need to summarize and report the work of the past few years according to the rehearsals of the past few days. " Zhuang Bingchang nodded slightly awkwardly, then took out his handkerchief and began to wipe his sweat: "To be honest, Academician Chang, there was no transition at all. It was like this from the beginning. I was really nervous..." If this continues, Chang Haonan has no doubt that the other party will ask the same or similar questions for the fourth time. Fortunately, a staff member came in a few minutes later and informed the two that they could play. This kind of high-level meeting is not open to the public, but there is not much red tape. In particular, Chang Haonan is still a famous figure. After just a brief self-introduction, we got to the point: As we all know, in recent years, due to human engineering activities and changes in the natural environment, various ecological and environmental problems have arisen in the originally fragile ecological functional protection areas. Among them, desertification is caused by soil loss and degradation after the destruction of **** vegetation. More prominent. "In particular, the five regions of Xinjiang, Tibet, Gansu, Qinghai and Mongolia account for 95.64% of the total desertified land area in the country, which has seriously restricted the economic and social development of these areas and is not conducive to the promotion and implementation of the Western Development Strategy..." "Since 2000, the project team led by me and Professor Zhuang Bingchang of the Jilin Academy of Agricultural Sciences has been conducting a four-year pilot project on desert soil transformation in western Mongolia Province. So far, it has achieved theoretical and mu-level small-scale testing remarkable results In front of the leaders, Chang Haonan naturally cannot use too much space to explain such advanced contents as shear rheology constitutive model, enthalpy control strategy, chemical bond formation mechanism or colloidal particle self-assembly process. Together with Zhuang Bingchang, I briefly introduced the entire research and calculation process, and then switched to the core topic before the first person dozed off: I believe that there are sufficient conditions now. Based on our transformation plan and the actual situation, the Horqin Sandy Land, Hunshandake Sandy Land, and Hulunbuir Sandy Land, which are located in eastern Mongolia Province and have been significantly degraded in the past decade, Three agricultural production areas are undergoing demonstration transformation...but the specific scale of the pilot still needs to be determined by the leaders..." When he said this, not to mention the leaders below, even Zhuang Bingchang couldn''t help showing a look of astonishment. He had indeed heard Chang Haonan say that he needed to find his superiors to increase investment. But I never expected it to be an increase in this sense. By analogy, it is equivalent to jumping directly from the past small trial stage to industrial trial production... The leaders in the front row who could participate in the final decision also looked at each other, and then discussed in low voices for a long time. After a while, one of the representatives asked: "Before the meeting, I saw the information about your experimental field in western Mongolia Province. Although it is only less than 100 acres planned at this stage, the surrounding area is very empty... Why not choose to continue to expand at the original location, but to move to the eastern part of Mongolia Province? ? Regarding this issue, Chang Haonan has already prepared a draft: "After all, agricultural production is different from technological experiments that pursue the ultimate limit. Even with qualified soil conditions, it still requires suitable light and precipitation... The eastern part of Mongolia Province belongs to the northeastern region, and the precipitation is almost twice that of the west, making it more suitable for real Large-scale planting, and the potential for increasing production is also greater, which has the potential to alleviate the shortage of cultivated land in our country..." "Relieving the tension on farmland..." The leader who asked the question just now shrank his pupils and almost lost his dignity. After a few breaths, he sat up straight and his tone became serious: "Comrade Chang Haonan, do you know...the weight behind this sentence?" Among 100 topics that study the environment and agriculture-related fields, I am afraid that 101 will mention similar statements. But it''s one thing to brag in a project proposal, but it''s another thing to say it in front of so many high-level leaders. Job issue. It cannot be valued enough. Chang Haonan nodded firmly. "certainly." It wasn''t until this moment that everyone finally realized. The "large scale" mentioned by Chang Haonan may be much more exaggerated than their previous estimates. "Comrade Chang Haonan, I hope you will consider the following question carefully before answering." The leader''s upper body leaned forward slightly and cast his sharp gaze on Chang Haonan opposite: "If you don''t take into account the investment and other costs, how much area do you think the demonstration transformation you just mentioned has the potential to cover?" In fact, Chang Haonan has really let this matter go in the past few days. The final result even felt a bit exaggerated to him. So, it wasnt just counted once. But since the leader asked you to think carefully, it is definitely not appropriate to blurt out. Therefore, Chang Haonan deliberately lowered his head and meditated for three minutes: "If all three sandy lands are included, a conservative estimate would be... about 40 million acres!" (End of chapter) Chapter 1147 Overturn the consensus of the world! Chapter 1147 overturns the consensus of the world! For Chang Haonan, this number is indeed conservative. According to a comparison of remote sensing and statistical results from Mongolia Province, the area of ??sandy and semi-sandy land with potential for transformation in Wumeng City in the east alone should be around 60-80 million acres - Because the huge amount of degraded land area is not a long-standing thing in statistical lists, local governments have no incentive to make false reports on this kind of data. The results are basically credible. Moreover, although Chang Haonan had never been exposed to any agricultural projects in his previous life, he also knew that Mongolia Province had actually been developed into a top agricultural production area. Thanks to the relatively flat terrain, it is still the kind of production area that does not require intensive farming. The reason why I fold it in half as soon as I open my mouth is mainly because of the psychological endurance of the leaders. Otherwise, when you came up and said you wanted to build nearly 100 million acres of new farmland, it was a bit exaggerated. But... It can only be said that Chang Haonan''s considerations are indeed a bit humane. But not much. What is the concept of 40 million acres? According to statistics in 1996, the total cultivated land area in China was only a little over 1.9 billion acres. In 2003, the meeting did not propose a red line for cultivated land. Considering the large amount of occupation over the years, the actual optimistic estimate is only about 1.8 billion acres. This is equivalent to conjuring up 2.2% of the existing cultivated land area out of thin air. If you put it in the general field, increasing production capacity by only 2% is really not worth mentioning. But this is agriculture. A lifeline industry in the physical sense. If necessary agricultural products are short of 2%, then the market price will definitely not only increase by 2% without considering policy deployment. Instead, it will rise until 2% of people starve to death. Therefore, after hearing this number, he still heard a few faint inhaling sounds coming from around him. Li Zhongyi, who had been sitting on the edge just now and muttered about making a fortune, suddenly raised his head and made a tactical tilt at the same time. Looking at Chang Haonan, one sentence could clearly be read: "Little ancestor, what kind of cruel work are you going to do?" Seeing that the atmosphere was a bit cold, Chang Haonan finally realized that perhaps transforming 40 million acres of cultivated land was still a bit beyond imagination for China at the moment. But he was also very wronged. It was obviously the leader who insisted on asking "without considering the capital investment and other costs" just now. Then you should expect to get a very exaggerated number... In fact, Chang Haonan himself had some preconceptions about this. At the beginning of the 21st century, both internationally and domestically, there was overwhelming publicity that global warming would lead to land degradation and reduced agricultural production, etc., which led to everyone generally having pessimistic expectations about the future. Leaders are also human beings and will be affected by this kind of public opinion. But in fact, after more than ten years, everyone discovered that this matter also depends on the situation. For Western Europe and the United States, the above conclusion is indeed correct. But for Central Asia, East Asia and North Asia, the northward shift of precipitation and isotherms is beneficial to agricultural production. Therefore, there is indeed a huge difference in concepts between Chang Haonan, who has experienced these things, and people who were "born" in this era. Fortunately, he also left a hook before, so he can continue to make up for it now: "Of course, this is without considering other external constraints... If such a large-area soil improvement project can be implemented, in addition to the visible economic and social benefits, it will even have an impact on the ecological environment of the entire Northeast Asia region. The impact is no less than that of a century project like the South-to-North Water Diversion Project, which mobilizes the entire country. "Therefore, even if it is only the first phase of the project, it needs to be further implemented in stages. Considering that this is still a new technology, especially the effect under long wheelbase and large area conditions is lacking data, so first of all, we are preparing to use 3- In 5 years, we will conduct a medium-scale experiment covering an area of ??500,000 to 1 million acres, and then..." However, before Chang Haonan could finish explaining the entire three-step plan, another leader raised his hand and interrupted him: "We will talk about these processes in detail later... If you really think that eastern Mongolia alone has tens of millions of acres of land transformation potential, then no matter how small the scale of the first step is, you should always consider it when planning. It must be carried out according to the standards of the century project. "So, there are several issues that you need to consider carefully." Although he was indeed shocked by Chang Haonan''s answer at first, he was a senior leader who was used to the world and quickly regained his rationality. "Even the eastern part, which you just mentioned, has relatively good climate conditions, is still a semi-arid area. The surface water systems that Mongolia''s agriculture can rely on are mainly the Hetao Basin of the Yellow River and the Xiliao River, but these two water systems are also It is impossible for all the industrial and mining industries in the four cities of Hohhot, Baotou, Echi and Chi to be used for agricultural production. Although there was no map in the entire conference room, he still stretched out his hand as he spoke and pointed at several locations in the air in front of him. Almost exactly corresponds to the places just mentioned. Apparently very knowledgeable about the actual situation: "If agricultural production relies on groundwater for a long time, it will undoubtedly lead to overexploitation, which is not a long-term solution." "In this case, if the decision-makers really pass the mid- to long-term plan for 40 million acres, or even a larger scale, how are you going to solve the water conflict?" This question can be said to hit the nail on the head. It is also the link that seems to have the biggest loopholes in the entire plan. Although Wumeng City in the east is part of Northeast China at the zoning level, geographically, only part of the land east of the Greater Khingan Mountains is actually an extension of the Songnen Plain. Of course, it has already become a major agricultural production area. The three sandy lands that Chang Haonan mentioned before do not actually reap the environmental dividends of the Northeast region. The beginning of the 21st century is also the most serious stage of soil erosion. The water balance in Mongolia, and indeed the entire north, is already at a precarious level. The Yellow River even has an outrageous record of zero runoff for several consecutive years. In this case, let alone 40 million acres, even 4 million acres may be the straw that breaks the camel''s back. Sitting next to him, Zhuang Bingchang, who had not spoken since introducing his work situation, changed his face slightly. He has worked in the Northeast and Northwest regions for a long time and knows very well that all the situations mentioned by the other party actually exist. In fact, Chang Haonan had never disclosed this figure of 40 million acres to him before... However, the former showed a slightly happy expression - Asking such a specific question shows that the other person is already interested. If others keep discussing some floating topics, it will be really troublesome. Therefore, he immediately replied: "From a temporary perspective, a number of water conservancy facilities can be built in this area." "As you just said, the Xiliao River can support the irrigation of the Horqin Sandy Land and the eastern part of the Hunshandake Sandy Land, but it suffers from insufficient flow. Therefore, we can consider learning from the successful experience of the South-to-North Water Diversion Project and diverting water from the Chuoer River To the West Liaohe River, it will provide water supply to cities and industrial parks along the route, and provide comprehensive utilization such as irrigation and power generation. When Chang Haonan said this, he only heard a burst of laughter from around him. "nothing." Someone soon explained: "Thank you Academician Chang for your best wishes for the South-to-North Water Diversion Project..." Joking is joking. Although the first phase of the South-to-North Water Diversion Project has just started, there are still 300-400 kilometers of water conservancy projects even in the inspection stage before the project is approved. Compared with the earth-shattering pie before, this proposal of "introducing Chuo to Ji Liao" seems not too out of the ordinary. "You just said that this is a temporary solution..." The leader who asked the first question took the lead in calming down the somewhat loose atmosphere: "Then listen to this...Academician Chang, do you still have a way to cure the root cause?" This time, Chang Haonan shook his head very simply: "With today''s human technological level, it is still too difficult to completely overcome the laws of nature..." Some of the looks revealed a bit of regret. If the climate can be fundamentally improved, it will definitely be a sure win in long-term international competition. However, Chang Haonan''s words were not finished yet: So, its not me who can cure the problem, but the environment itself. In just one sentence, many people experienced ups and downs in their mentality. "The environment itself?" A leader from the land and resources system suddenly became interested: "Academician Chang, don''t you also support the plan to dig a hole in the Yanshan Mountains to allow the warm and humid air from the Bohai Sea to blow into Inner Mongolia?" Chang Haonan: "..." Zhuang Bingchang: Other leaders: Chang Haonan himself didn''t even know that anyone else had proposed such an idea. It sounds similar to digging up the Himalayas and letting the Indian Ocean air flow into Xinjiang Province... He quickly shook his head: "No need to bother..." "In fact, as long as the current trend continues, in a dozen years, with global warming, the hydrothermal conditions and environmental carrying capacity of central and western my country will naturally increase..." "!!" Almost all the dozens of people in the conference room focused their attention on Chang Haonan again The 40 million acres of cultivated land mentioned just now is only an exaggeration in terms of quantity. After all, China has never stopped researching soil consolidation and sand control technology since the founding of the People''s Republic of China. It''s just that I never thought it could have such a good effect in the past. However as mentioned before. This conclusion was placed in 2004, but its direction is completely different from the current commonly defined "common sense"! "Can you tell me the reason?" Someone soon asked: "Is it calculation, or..." "The evolution of the Earth''s climate is too complex, and there are almost no 100% reliable theories... Calculations alone will definitely not work." Chang Haonan replied: "My judgment is based on two reasons. One is the analysis of the laws of soil stratigraphy and historical climatology. Increasing the earth''s temperature is not simply a bad thing for a continental country like my country..." "Second, our country has systematically implemented the largest surface greening project in human history, which lasted for more than 40 years. Although manpower alone is not enough to reverse nature, it has the foundation to undertake the improvement of climate conditions. This is Advantages that no other country possesses also mean that we cannot copy the research results of foreign researchers in the field of ecological environment..." "Academician Chang, please wait first..." The leader who just asked the question took a deep breath and did not let Chang Haonan continue. I must admit that what the latter just said sounded really good. Especially the second point is almost aimed at the preferences of his generation. But his reason told him that the more pleasant the words were, the more attention should be paid to judging their accuracy. Moreover, Chang Haonan is not a geophysics expert. Compared with the rich experimental data and calculation process he presented when introducing soil stabilization and sand control technology, the explanation in these few sentences is a bit too thin. As a scholar, Chang Haonan can make speculations that are consistent with logic and existing theories based on his own judgment. But as a decision-maker, he has to ensure that he listens and understands. At least it needs to be verified by professionals. "The stakes are high, and we may have to confirm the correctness of this conclusion." "So I propose to adjourn the meeting temporarily and continue discussing this issue at an appropriate time..." (End of chapter) Chapter 1148 Unlucky Koreans Chapter 1148 The unlucky Korean After the meeting. Chang Haonan said goodbye to all the leaders, then packed up his things and took Zhuang Bingchang downstairs. Although no clear results were obtained today, this kind of ruthless work of indirectly transforming the landscape and ecology of half a province and hundreds of thousands of square kilometers cannot be finalized casually. Being able to leave a reliable and deep impression on the decision-makers is already a good start. "Academician Chang, you really shocked me today..." The posture just now was so great that Zhuang Bingchang still feels a little sweaty even now. "Didn''t I say it before? We can''t continue to make small fights." Chang Haonan smiled and replied: "But it doesn''t matter...you will get used to it gradually." In 2004, China''s money bag was just getting richer, and various projects that had been planned in the last century were gradually implemented. But it is far from the infrastructure maniac that everyone will be familiar with in the future. There are some things that, unless you see them with your own eyes, you have no idea about. "after" Zhuang Bingchang didn''t seem to fully understand what Chang Haonan meant. But he was not prepared to continue to be entangled. He just followed Chang Haonan''s footsteps and at the same time lowered his head and began to plan his next work plan in his mind. At this moment, a voice suddenly came from behind the two of them: "Academician Chang!" Chang Haonan turned around and found that it was Li Zhongyi who had left the conference room about ten minutes earlier. "Director Li?" He stopped and motioned to Zhuang Bingchang to go downstairs first. The latter is not a member of the Science and Technology Commission system, so even some content that is defined as non-confidential is not easy to talk about in front of the other party. "After the symposium, the superior leaders organized another small-scale discussion." Li Zhongyi slowly came to Chang Haonan''s side and explained the reason why he only appeared here now. But then the conversation changed: "The technology that turned sand into farmland just now was the inspiration you told us during the previous meeting?" If two years ago, Chang Haonan had reported directly to the Science and Technology Commission, it would have been completely disrespectful. But now, the situation is different. The title of academician is not relevant for the moment. The position of advisor to the Shanggong Construction Committee was created to provide advice and suggestions to superiors. Or rather, a national strategic project like this is not originally under the jurisdiction of the Industrial and Construction Commission. Even so, Chang Haonan could still hear something in Li Zhongyi''s tone... Wronged. "That''s not..." The former quickly shook his head: "I was planning to talk to you alone about exporting technology to Middle Eastern countries." After hearing the word "alone", Li Zhongyi''s expression finally relaxed. There is quite a sense of reassurance that "it seems that the relationship between us is still strong". Then, he put on a posture of being ready to listen. "The details of desert soilization technology have a lot to do with the composition and structural properties of the sand itself. The experience of Mongolia Province cannot even be directly transferred to Xinjiang Province, let alone the Gulf Area..." Chang Haonan explained: "So, what I was planning to bring out at that time was actually a sand solidification technology based on pure mechanics." Li Zhongyi did not answer, but there was some confusion in his eyes. As a layman, he didn''t seem to hear any obvious difference. "To put it simply, the recoverability of the universal binding constraints is not considered, but only the rheological properties are enhanced. By adjusting the composition and ratio of the curing agent, the sand body can be adjusted from a completely discrete state to a state similar to soft soil. to the extent that the foundation can be further strengthened by general hardeners such as cement. At this moment, Li Zhongyi reacted immediately: "Can it be used as a foundation?" "That''s right." Chang Haonan gave an affirmative answer: "For our country, the cost of this technology is too high, and its significance is not very great. At most, it can improve the settlement of some roads and railways. But more than 90% of the UAE''s land area is in the desert, so there is no choice at all...Besides, They are not short of money and can use it just right. In fact, he still has reservations about what he said - For China, this technology can only be said to be of little significance at the moment. But it can be used as one of the prerequisite technologies for large-scale reclamation and island building. In as short as a few years or as long as more than ten years, it will play an unimaginable role. However, it is too early to say this now. Not only is it unsupportable in terms of technology and cost. It is not yet time for the external environment. However, just the effect of solidifying the foundation has already made Li Zhongyi''s eyes gleam. "Then it seems it''s time to convene relevant units to discuss..." He calmed down a little and said. You know, the open fields listed by the UAE for China are quite broad, but they just lack a starting point to enter the game. This technology is almost equivalent to giving you a pillow when you feel sleepy. On the other hand, in principle, apart from the original several major military industrial groups, the Industrial Construction Commission does not directly govern any other state-owned enterprises. Business guidance can only be provided through the relevant policies of the four equipment industry departments. It''s guidance, not guidance. Administrative coercion cannot be used. Therefore, if you want to gain enough influence, you need to provide corresponding benefits. And an early access card for the GCC country market is obviously a very attractive bargaining chip... How the Industrial Construction Commission specifically expands its influence is something Li Zhongyi and his leadership team need to consider. As a technician, Chang Haonan has accomplished his mission if he can provide a first-hand bomb. Therefore, after leaving the venue, he returned to the Torch Laboratory with Zhuang Bingchang. Originally, the two were planning to discuss the follow-up test plan. As a result, as soon as he sat down and before he could start chatting, he saw Song Jingming hurriedly appearing at the door of the office. The other party is Chang Haonan''s office director at Torch Group, and he doesn''t often appear in the laboratory. Therefore, there must be something important. Sure enough, as soon as Song Jingming entered the door, he took out a piece of information from his briefcase. "Mr. Chang..." At this time, he discovered that there was another person sitting opposite Chang Haonan. For a while, the atmosphere in the office was a little awkward. Especially when Song Jingming and Zhuang Bingchang looked at each other, they were both stunned. After a while, the latter suddenly realized that he seemed to be the redundant person... "Then Academician Chang, shall I wait for you in the lounge below?" Zhuang Bingchang was very discerning and found a reason to run away. Before leaving, I didnt forget to close the door behind me... Until then, Song Jingming breathed a sigh of relief, then quickly stepped forward in three steps and put the folder on the desk: "Mr. Chang, Team Leader Zhong Hongyu just contacted us, saying that the Norwegian company that ordered LNG ships from Samsung Offshore Geoje Shipyard suddenly declared bankruptcy and was unable to pay more than 70% of the remaining balance..." This news came somewhat suddenly. But it is not a surprise in itself to Chang Haonan. The Norwegian company originally belonged to the notorious Sezhuoer Petrochemicals, and it even initially targeted Chinese shipyards. Fortunately, the Koreans took the initiative to grab orders for these ships, so Chang Haonan simply used the trick and handed this hot potato to Samsung Offshore Engineering. He also used technical problems to trick the opponent. "For Geoje Shipyard, this is not entirely a bad thing..." He shook his head with a strange look on his face: "The cargo tanks and re-liquefaction systems of those ships are not suitable to begin with, and there are serious safety risks... If something happens after delivery, Geoje Shipyard is afraid that it will go bankrupt..." Although he was the instigator of the Korean people''s misfortune, he did not feel any guilt at all. On the contrary, I want to laugh a little bit The order was taken by you on your own initiative. The reliquefaction technology was also stolen by you on your own initiative. We even had the kindness to give you a heads up. It was your failure to listen that caused today''s consequences. All I can say is that its hard to persuade a **** ghost with good words. After listening to Chang Haonan''s critical comments, Song Jingming also showed an expression of laughter: "Actually, Mr. Chang, Geoje Shipyard may really want to file for bankruptcy..." The latter was stunned for a moment, but then he was relieved. Shipbuilding is an asset-heavy industry, and it is completely normal to have problems with capital turnover if the balance of more than one billion U.S. dollars cannot be recovered. In the last generation, China''s large ship and offshore engineering industry was also manipulated by Xizhuoer Company in this way. If the superiors did not decisively come to the rescue, they would basically end up in bankruptcy. Although Samsung Offshore is a big company and a big business, no matter how big it is, it cannot be bigger than the State-owned Assets Supervision and Administration Commission. It is completely understandable to choose bankruptcy and reorganization if you cannot bear the pressure. But schadenfreude is schadenfreude. Chang Haonan quickly thought of another question. Mr. K, also known as Yoon Jong-hyun, is the manager of Geoje Shipyard. Might be a former manager now. After discovering the safety hazards of those ships, because they could not withstand the blame from their superiors, they were forced to choose to join the Communist Party, and the world changed in an instant. The original intention of the other party was to exchange for a plan that could completely eliminate the safety hazards of several LNG ships. But Chang Haonan was not prepared to give it to him from the beginning. As for now Party A and Party B of the contract are finished together. Even if someone takes over and something goes wrong in the future, it will be impossible to find the relevant person responsible. But Manager Yin has already handed in the certificate of surrender and boarded the pirate ship, and it is impossible to get off. So, he quickly asked with concern: "Our Mr. K...what''s going on now?" The demise of Geoje Shipyard, or even Samsung Offshore Engineering, has nothing to do with Chang Haonan. But if such a useful insider like Yin Zhongxian loses value because of this, the loss is still a bit big. "Team leader Zhong said that because of his outstanding work ability, he was poached by his counterpart Hyundai Heavy Industries as soon as the rumors of the bankruptcy and reorganization of Geoje Shipyard emerged, and he is currently serving as the deputy general manager of Ulsan Shipyard. Song Jingming replied: "In addition, considering that the current general manager of the latter is old, it is expected that he may take over as the top leader of Ulsan Shipyard within 1-2 years..." (End of chapter) Chapter 1149 Science has no mainstream! Chapter 1149 Science has no mainstream! If he hadn''t been concerned about his image in front of his subordinates, Chang Haonan would have laughed so hard at this moment that he couldn''t stand up straight. From the perspective of the shipbuilding industry, there may not be much difference between the manager of Geoje Shipyard and the manager of Ulsan Shipyard. But in terms of intelligence value, it is one underground and one in the sky - Ulsan Shipyard is one of the most important military shipyards in South Korea. From the destroyer King Sejong the Great, to the submarine Son Won-1, to the amphibious assault ship Dokdo... Almost all the main combat ships of the South Korean Navy are produced here. Of course, the ships themselves don''t have much value. Although the Chinese Navy has not yet fully grown in scale, the new generation of main battle equipment is about to enter a blowout period, and it is no time to ponder what the Koreans have. What is truly priceless is the equipment carried on the ship. Almost a complete set of NATO standard formats. And unlike the Maritime Self-Defense Force, which has been castrated everywhere, what the South Korean Navy has received is basically a full-blooded version with complete functions. Even in some special cases, due to the construction cycle, it will be equipped earlier than the US military itself. A few years ago, Geoje Shipyard was only included in the bidding scope of the KDX-3 destroyer, which allowed China to obtain many important parameters of the baseline 7.1 version of the Aegis system through Yin Jong-hyun. Although at that time, the Star of the Sea system had already begun development, and because it adopted different solutions, it was impossible to directly learn from the former''s specific technology. However, considerable inspiration has been obtained in terms of indicator determination and testing standards. As for the new generation of anti-ship weapons, they directly target the opponent''s weak areas in terms of ballistic selection and penetration strategy. It can be said that it directly establishes the dominant position in sea-based armored bomb confrontation in the next 20 years. The only pity is that because one of the two models, Standard 3 and Standard 2ERBLOCK4A, was delayed and the other was cancelled, we were unable to obtain relevant information about the US military''s sea-based mid/terminal anti-missile system at the same time. Now, Ulsan Shipyard is directly responsible for the construction of the KDX-3 first ship and all subsequent upgrades... Chang Haonan simply didn''t dare to think about what treasures could be found from the blind box. Because if Manager Yin had always promised to keep a low profile and not be exposed, then according to the original timeline, KDX-3 would even be the first batch of Aegis ships to receive the Baseline 9 upgrade in the future... What a win. "Contact Team Leader Zhong and ask him to reduce the frequency of contact with the other party as much as possible. Except for the most critical military and technical information, do not overuse the other party''s role." Chang Haonan whispered to Song Jingming: "In addition, be sure to ensure direct single-line contact with Mr. K. Even if the connection is temporarily disconnected, do not use any channel other than the second bureau..." He thought he didn''t understand intelligence work, but he vaguely remembered that in his previous life, during this period, a big thunderstorm exploded in the direction of the peninsula. So you can never be too cautious. In fact, logically speaking, intelligence work should have nothing to do with a company. But Yin Zhongxian''s line almost entirely came from the matchmaking of Torch Group, so it was a shared condominium from the beginning. It''s just that I rarely got involved in specific business before... That evening. Chinese Academy of Sciences, Institute of Geology and Geophysics. Li Guangshan, the office secretary, was sitting at his desk, looking seriously at the red-headed document that had just been issued to him. Although the Chinese Academy of Sciences is the highest advisory body for science and technology, it is extremely rare for an order to be given directly from the decision-making level to the research institute-level unit. The few incidents that occurred in the past were all due to personal reasons of some senior academicians. For example, in 1992, Mr. Qian once proposed that in the field of passenger cars, we can skip the gasoline and diesel stage and directly develop electric energy vehicles. The response given by superiors was to directly instruct relevant departments of the Academy of Sciences to conduct feasibility studies. However, the Institute of Geology and Geophysics is currently in a period of crisis. The director and secretary are not even academicians, so their status is quite embarrassing. Although there are senior veterans like Academician Liu Dongsheng, their research focuses on Shaanxi, Gansu, Qinghai, and Tibet, and the content mentioned in the document cannot be completely consistent... "Who is this big boss who can command this level to directly issue documents..." Just as Li Guangshan was analyzing the list on the computer screen one by one, with a burst of crisp footsteps, a middle-aged man who looked to be in his forties appeared outside the office. He stopped turning the pen in his hand and looked up from the screen. "Old Ding?" Li Guangshan looked happy: "I thought you were off work." The person outside the door was none other than the director of the institute, Ding Zhongli, who was not yet an academician. and his deputy, Researcher Wu Yuanfu. "I''m getting ready to get off work..." Ding Zhongli looked at the expression of the old man behind the desk and seemed to have guessed something: "Are you doing something wrong with me?" "That''s right...I was planning to contact you after work tomorrow." Li Guangshan quickly called the two people outside to come in: "Look at this." Then he handed the documents on the table in front of him to Ding Zhongli. The latter put the briefcase aside curiously and then took it in his hand: "Assessing the impact of climate change on the ecological carrying capacity of central and western my country in the next 20-50 years..." The document is not long, just two pages. But just these few hundred words made his mood go through several roller coasters in a matter of seconds. For Ding Zhongli, this task is not technically difficult. Even the research institute level has made similar reports in the past. But many times, disputes in the field of ecological environment do not arise from technology. But in terms of position. Environmental protection has been one of the most politically correct practices since the second half of the 20th century. Today, in the 21st century, it can be said that it is a business everywhere. This is one of the reasons why Ding Zhongli, as a disciple of a senior academician, has not been able to become an academician even though he has the honor. Wu Yuanfu next to him was obviously more direct: "Secretary Li, your superiors suddenly asked for a climate assessment at such an inappropriate time... Are you preparing to adjust the carbon emission policy?" Hearing this question, Ding Zhongli, who had a dull face, frowned slightly for an instant - This is what he is worried about. Since China joined the WTO four years ago, the international community has begun to exert pressure on China from the two fields of environmental protection and energy conservation and emission reduction. Just mention these two things, they are definitely good things that benefit the country and the people. But it is not inevitable given the conditions of the times. In his opinion, China is now in a stage of rapid development of economic construction, especially industrial construction. Putting aside environmental protection, carbon emission rights must be guaranteed. Furthermore, the emission reduction strategy developed mainly by developed countries is extremely unfair. Even for the sake of national dignity, we must not agree to this unequal treaty in the new era. Li Guangshan shook his head helplessly: "I don''t know either... The superiors are very tight-lipped about this matter. I have inquired through many channels, but nothing has leaked out..." After a period of silence, he turned his eyes to Ding Zhongli: "I said Lao Ding, you are an expert in this field and the director of our research institute. You must take the lead in this assessment." "Can you consider a roundabout strategy and first express some opinions that are closer to the mainstream academic circles? At least resolve the academician title, so that your words will have more weight in the future..." Li Guangshan is not a technical person. Fortunately, he has a very clear self-positioning. Even as a secretary, he rarely makes business-level suggestions. This time, I really couldn''t hold it in any longer. It wasn''t that he was dissatisfied with his partner''s stance. It''s just that considering that the other party, as the head of the Academy of Sciences, has repeatedly been unable to be elected as an academician due to various obstacles, it is really not a shameful thing. How about we pay attention to the methods of struggle? You have to give in first. When you become an academician, what opinions do you want to express? Its not up to you to decide? But at this time, Ding Zhongli had already made a decision in his heart. "Secretary Li, I know you are thinking about me and the development of the institute." "I''ve thought about it." Li Guangshan and Wu Yuanfu looked at him at the same time. "Science is about sticking to what you think is right." Ding Zhongli put the document back in front of the other party: "Science has no mainstream." (End of chapter) Chapter 1150 Assists from the United States Chapter 1150 Assist from the United States Ding Zhongli was originally preparing to get off work, but after seeing the document just now, he immediately lost the thought of going home. He immediately picked up his briefcase again and prepared to return to the office to continue working. Li Guangshan also quickly got up, but it was difficult to stop him because there was a table across the way - During regular meetings at the institute, including private exchanges, he had heard some "shocking" remarks made by his partner. Of course it''s okay to chat in private, but if some of the content is written into the report... He felt a little sweaty just thinking about it. So he quickly winked at Wu Yuanfu, who had not yet reacted, and motioned for the latter to follow him. Even if Ding Zhongli couldn''t be made to change his attitude, he would at least be able to make his words a little gentler. Wu Yuanfu looked at his secretary on the left, whose face was ashen, and on his right at his director, who was obviously preparing for a big fight... Weak, pitiful, and helpless.jpg But in the end he gritted his teeth and turned around to follow. As an expert in Quaternary geology and soil stratigraphy, Ding Zhongli naturally could not have just improvised after receiving the task. In fact, since the mid-1990s, he has been paying attention to the issue of carbon emission reduction, which was not taken seriously internationally at that time. During this process, I have made many suggestions to others, but basically I have not received effective feedback. It can be said that Ding Zhongli has been waiting for this day for too long. Of course he knew that Li Guangshan''s suggestion just now was for his own good. But the superior suddenly issued a request directly, which obviously involved some important decision. If, at this juncture, we give results that blindly cater to the so-called "mainstream academic circles" for the sake of our own selfish interests, it will definitely be a disgrace to the country and ourselves. Moreover, even from the perspective of personal gains and losses, he and those who push China to reduce carbon emissions have long been in two trenches. It won''t change just because his attitude softens one time. It''s better to stick to your own opinions. If Heaven really listens to them, then the academician will just pick something up... Therefore, after returning to the office, he neither called anyone immediately nor turned on the computer again. Instead, he skillfully took out almost a dozen information boxes from the bookshelf behind him. This is information related to climate and emissions issues that he has accumulated in his research over the past decade. Then, he turned around and looked at Wu Yuanfu who had just entered: "Old Wu, come and do me a favor." After saying this, the latter, who had just mustered up the courage to speak again to persuade, suddenly shrank his head without Li Guangshan by his side: "Okay, Director, just tell me what to do..." For Ding Zhongli, it was essentially a task of writing a review, and it didn''t take long at all. In about ten days, a detailed and standard evaluation report was placed in front of Li Guangshan. Of course, it was Wu Yuanfu who sent it. After completing this report, Ding Zhongli himself organized a scientific expedition team to conduct a round of actual scientific expeditions in the areas of Mongolia Province designated by his superiors to prepare ammunition for possible subsequent conflicts. Looking at the contents of this report, Li Guangshan almost performed cardiopulmonary arrest. "From a long-term perspective of millions of years, the earth''s activities themselves will also cause changes in the greenhouse gas content in the atmosphere, and the magnitude is no less dramatic than after the industrial revolution..." "Carbon dioxide is not the only greenhouse gas. In fact, there is no research that can strictly prove the causal relationship between carbon dioxide concentration and global warming..." "The relationship between global temperature rise and species diversity only comes from a research project in a British laboratory, and is not a true academic consensus..." "From our country''s perspective alone, climate warming is generally beneficial before the Greenland ice sheet melts completely..." "Based on stratigraphic research, if the global average temperature can increase by 1.5-2, then the ecological carrying capacity of the central and northwest regions will have a greater probability of fluctuating for the better rather than for the worse..." Since he did not know the ultimate purpose of this report from his superiors, Ding Zhongli wrote down the conclusions at various levels in almost every detail in his conclusion. Most of them are different from what is widely publicized internationally, and the wording is quite simple and direct. Li Guangshan put down the report, covered his heart and quickly drank some water to calm down his shock. Then, he looked at Wu Yuanfu opposite: "Didn''t I ask you to persuade Director Ding that day...Why did it come out like this in the end?" The latter raised his head and wiped the non-existent sweat on his forehead: "Secretary, to tell you the truth, this has already been done after persuasion..." "The original version was even more exaggerated. I still have the manuscript. Why don''t I bring it over to you for a look?" In fact, although Ding Zhongli has a straight attitude, he is not purely reckless. This is the first version of the manuscript. It''s just that in the past few days, some things that can be called "rebellious" have been mentioned. The reason why Wu Yuanfu said this was because he believed that the other party would never really want to see it. Sure enough, Li Guangshan raised his hand to his forehead and sighed heavily: "Forget it, I''m afraid my heart can''t bear it..." Although he was quite dissatisfied, at this point, he quickly opened the pen and signed his name on the cover of the report: "That''s it. If you are sure that the content is okay, I will submit it." The institute is a whole, and it is okay to have any differences behind closed doors, but we must remain unconditionally consistent externally. Anyway, we are reaching retirement age soon, so there is nothing to be afraid of... Before the report was actually submitted, Li Guangshan had already made quite sufficient mental preparations. However, everything was like a stone sinking into the sea. After a wave of ripples, it quickly returned to calm. In fact, this report is naturally intended by the decision-makers to verify the idea put forward by Chang Haonan at that symposium, that is, in the next 10-15 years, the 400mm precipitation line will continue to move north and west, thus In order to ensure that the west of the Daxinganling-Yinshan-Helan Mountain dividing line could carry the tens of millions of acres of fertile farmland he planned, he commissioned the Institute of Geology and Geophysics to compile it. It was precisely for this reason that the superiors did not reveal much background information at the beginning, so that even Li Guangshan felt confused. But there is no airtight wall in the world. As time went by, relevant rumors gradually began to spread within small circles. Of course, no one is sure of the exact scale involved. In other words, even if someone actually heard about the area of ??40 million acres, they would subconsciously regard it as an outrageous number that was spread out through rumors and could not take it seriously. Everyone generally agrees that only for the purpose of the western development strategy, the country must conduct a thorough investigation of the natural potential of the central and western regions. The promoter of the whole thing should be Professor Chang Haonan, who was elected as an academician of both academies last year and was unparalleled in the limelight for a while. As for the rest, there are basically different opinions. The superiors seemed to have adopted a cold approach. No clarification was given, nor were the spread of these rumors restricted. Even until two months later, when Ding Zhongli returned to the capital from Mongolia, nothing was done. For Chang Haonan, he is very aware of how grand the plan he proposed is, and many of the plans are about shooting without looking back. Therefore, the relevant decisions are extremely cautious and cautious, and it is normal for them to take a long time. But other people still have drumming in their hearts. Therefore, within a few days, Ding Zhongli took advantage of the meeting of the Academy of Sciences and prepared to talk to Chang Haonan. Since it''s a probing style, you definitely can''t get into the topic right away. Instead, you have to make insinuations: "Academician Chang, I went to Mongolia Province for inspection some time ago, and happened to see the sand soil improvement experimental field you set up in cooperation with the Jilin Provincial Academy of Agricultural Sciences. I was very inspired..." In fact, this was purely an opening remark used by Ding Zhongli to make pleasantries He had never interacted with Chang Haonan before, so he could only use what he saw in Mongolia last month to quickly close the relationship between the two. But as luck would have it, this casual sentence almost hit the truth. So much so that in Chang Haonan''s view, this was simply a straight shot. So he immediately replied: "Director Ding wants to ask about the recent rumors about the development planning of the central and western regions?" However, Ding Zhongli was not prepared to get to the point in the second sentence. He thought that the other party was so knowledgeable that he would know what he was going to say next just by casually chatting with him, so he was stunned for a moment before nodding: "Yes, to be honest with you, I just submitted a report related to climate change in the central and western regions some time ago, but there has been no response. I also heard that Academician Chang had a lot of weight in it..." Chang Haonan still respects this big man from the bottom of his heart who dared to resist the climate agreement despite pressure from many parties at home and abroad in his previous life. But under the current circumstances, it was impossible for him to reveal the entire plan in advance. So only some less important parts can be selected: "Climate-related matters have a wide impact and the observation period is too long. I guess you are not the only one who is asked to produce a report. It should still be in the multi-party evaluation stage..." "In any case, at least so far, climate warming will lead to widespread global disasters. This is still the center of international public opinion. Even if superior leaders accept other views from an academic perspective, they must take into account the influence of the outside world... " These words may sound a bit unanswered at first. But Ding Zhongli instantly caught the implication: "Academician Chang, do you also think that there is a problem with the basis for current discussion of climate issues around the world?" Chang Haonan already knew the other party''s position and immediately smiled: "I''m not a climate expert, so I can''t say whether there is a problem or not. I can only say that there is a lack of strong evidence to support it... Moreover, judging from historical experience, the threshold for a ''universal global disaster'' should be very high, and it should not be caused by a temperature change of just a few degrees Celsius. can lead to Hearing his clear-cut attitude, Ding Zhongli suddenly became happy - Whether from his academic standpoint or from his personal perspective, Chang Haonan can be regarded as an extremely important help. However, before he could say anything, the broadcast sound coming from the loudspeaker next to him attracted the latter''s attention: [The U.S. Department of Agriculture issued a statement saying that due to the impact of extreme weather, crop production in North America will decline significantly this year and next, especially soybeans and corn. The price of grain futures on the Chicago Mercantile Exchange was affected by this. Rising to $367 and $153] (End of chapter) Chapter 1151 Conspiracy versus conspiracy Chapter 1151 Conspiracy versus conspiracy In fact, after listening to the news just now, Chang Haonan''s mood could almost be expressed in one sentence. Thanks to the American veteran for the assist! ! Even if agriculture develops into the 21st century, it cannot completely get rid of its dependence on nature. Therefore, it is normal for the international grain market to experience price fluctuations due to climate and disaster impacts. However, this "natural disaster" only accurately covered the main soybean and corn producing areas, and did not even affect wheat. It was really too obedient. Soybeans and corn happen to be the two crops that China imports the most and is most dependent on foreign countries. It is not difficult to guess that this should be the starting move of a combo. The purpose is to use a sophisticated futures trading to fully grasp the non-staple agricultural products market that China promised to open when it joined the WTO. Although it is not possible to grasp the lifeblood of China, it is definitely a seven-inch hit. Quite a vicious strategy. But it must also be admitted that it is very effective. It is a steady and steady conspiracy. Due to the triple debuff of insufficient production + insufficient reserves + open market, even if the Americans reveal every step in advance, it will be difficult for China to resist. But from another perspective, the other party''s actions will also completely expose the fundamental problem of China''s lack of arable land. This will undoubtedly prompt the swinging balance in the minds of decision-makers to tilt violently in the direction of Chang Haonan. When he thought of this, Chang Haonan couldn''t hold back the curve of his mouth... Ding Zhongli, who was next to him, was also keenly aware of the change in Chang Haonan''s expression. "Academician Chang?" He called out tentatively. "Oh, nothing." Chang Haonan quickly suppressed his smile, but the uncontrollable joy could still be heard in his tone: "Let''s continue... Where were we talking about?" In fact, Ding Zhongli had already made some guesses at that moment. Of course, he had not read the script in advance and was not a financial practitioner, so he could not guess the subsequent actions of the Americans in the futures market. But judging from the trend, it is a certainty that China will transform into a net food importer in 2004. The price increase of international agricultural product futures stuck at the current node is obviously not good for China. In this case, Chang Haonan''s first reaction after hearing the news was to be happy... Combined with the experimental field in western Mongolia... It undoubtedly shows that the other party has once again made the right bet on the research direction. Thinking of this, he smacked his lips with emotion and said in his heart: "No wonder people are making rapid progress..." However, seeing that Chang Haonan didn''t seem to want to dwell too much on this matter, he also changed the topic and used this excuse to talk about his old profession: "I just mentioned climate change... Actually, Mr. Chang, the extreme climate mentioned in the news just now most likely does not exist at all." Although Chang Haonan thinks so too, he still wants to hear real expert opinions. Then he asked with a little curiosity: "How to say?" However, the other party did not give any meteorological or geological explanation, but directly changed the subject: "The Americans are probably trying to use this incident to put pressure on us to force our country to make concessions in the next phase of climate agreement negotiations." It has to be said that because his own interests are related to farmland, Chang Haonan did not consider the problem from other angles. Now that Ding Zhongli suddenly said this, I think it makes sense - Even if it is not the main purpose, it can be used as a side note. But hasnt the Kyoto Protocol been signed long ago? Chang Haonan has a rough idea of ??the disputes between countries on emissions issues, but it is obviously impossible to compare with professionals like Ding Zhongli. "The Kyoto Protocol is essentially closer to a supplement to the Framework Convention on Climate Change. Most of the provisions in it are not mandatory and the content is relatively rough." The latter explained: "In particular, when the treaty was signed in 1997, because we were classified as a developing country, we were not required to make any commitment to reduce emissions..." "However, my country''s rapid development in recent years has made some developed countries feel threatened. Therefore, on the one hand, they are increasing their efforts to exaggerate the serious consequences of climate change. On the other hand, they are also promoting internationally that we have entered the so-called ''quasi-developed country''. The country''s ranks should shoulder the responsibility of emission reduction together with them..." Even though Chang Haonan had been mentally prepared for a long time, when he heard this, he still couldn''t help but blurt out: "That''s bullshit!" China''s development speed in this timeline is indeed faster than that of the previous generation, but in 2003, the per capita GDP was only 16,000 yuan, equivalent to a level of just over 2,000 US dollars. For comparison, even next door South Korea, which is generally considered to be the lower limit of developed countries, has a per capita GDP of nearly US$15,000. To classify China as "quasi-developed" at this point in time is to tell lies with open eyes and no shame at all. Of course, it''s exciting. Chang Haonan is not going to lose his mind because of this trivial matter. After calming down a little, he turned to ask: "But the Kyoto Protocol is, after all, an old document that was signed seven years ago. No matter how many revisions are made, the content cannot change..." Seeing Chang Haonan''s reaction, Ding Zhongli secretly breathed a sigh of relief, then nodded: "In fact, using the contents of the Kyoto Protocol as an argument should be just a means to divert our attention." "I personally speculate that their real purpose is to put pressure on the fourth assessment of the Intergovernmental Panel on Climate Change (IPCC), which will be launched at the end of this year, so as to push for restrictions on our country in the next climate agreement... or even restrict all development in one go. Chinas greenhouse gas emissions After saying this, perhaps because he was worried that Chang Haonan would not realize the seriousness of the matter, he just paused for a moment and continued: "To tell you the truth, my background is in geological research, and I am very aware of the various catastrophic extreme climates that the earth has experienced in the past hundreds of millions of years... Therefore, I am not opposed to reducing greenhouse gas emissions, but in the visible In the future, modern human civilization can only be based on fossil energy. To put it more bluntly, the right to emission is the right to development, so the prerequisite for emission reduction is to ensure fairness. "As a country with a population of 1.2 billion, even if our total emissions are the same as those of the United States, it is equivalent to only a quarter of their per capita emissions rights. This does not include the stocks that developed countries have emitted without restraint in the past 150 years. Ding Zhongli turned around and looked directly at Chang Haonan, who was half a head taller than himself: "Academician Chang... If their conspiracy succeeds, it will be equivalent to locking the upper limit of our development..." "So, what Director Ding means is that you want me to express my support for you on this matter?" Chang Haonan asked straightly. Ding Zhongli was slightly stunned when his purpose was revealed, but then he regained his original calmness: "That''s right." "You and I are both technical people. We cannot function alone in international political situations like the IPCC. Therefore, we must make decision-makers aware of the seriousness of the situation so that we can show the toughness we should have at critical moments." Attitude, it''s just that... our Institute of Geology and Geophysics still lacks influence, and if you, Academician Chang, can join, you may be able to change the views of the superiors. " It should be said that there is nothing wrong with Ding Zhongli''s entire idea. This is why he insisted on adding the content that "global warming trends are beneficial to our country to a certain extent" in the assessment report. Because this is the confidence to flip the table during the negotiation process. And as long as we are not afraid of overturning the table, even if true fairness in emission rights cannot be achieved, we can at least achieve relatively favorable conditions. However, after Chang Haonan lowered his head and thought deeply, he did not immediately give a positive answer, but asked: "Why can''t we be more direct?" "Um?" Ding Zhongli obviously did not expect that the other party would give such a reply. "I mean, of course we have to dare to flip the table, but we can''t use flipping the table as the only means." Chang Haonan continued: "It is like nuclear weapons. It is indeed the strongest trump card. However, it is impossible to directly face nuclear threats in any situation. At most, it can only ensure that the country is not destroyed and the species is exterminated... We also need to build conventional military forces such as imaginary hostility and so on. Although Ding Zhongli did not come from a military background, this explanation is easy to understand and is not difficult to understand: "You mean, take the initiative in the IPCC''s fourth assessment?" Chang Haonan nodded: "Frankly speaking, I don''t believe that developed countries...especially the United States, will really reduce carbon emissions as promised." "As you just said, the IPCC''s assessment work is absolutely dominated by developed countries... Doesn''t that mean that they are both athletes and referees, and whoever ranks the most will rank as many as they want?" It can be said that he has seen too many similar things. "Then what you said is indeed correct..." Hearing this, Ding Zhongli sighed helplessly: "Although we have room to argue with arguments, the most we can do is use domestic ground monitoring data to refute. As for the situation abroad...it is true that they can say whatever they want." But Chang Haonan became excited instead: "So, if we can find evidence to expose this during the fourth evaluation process, wouldn''t it be equivalent to providing our superiors with a conventional weapon that can flip the table?" (End of chapter) Chapter 1152 Use the other persons way to return the other persons body Chapter 1152: Give him back his own way Chang Haonan''s thinking is basically the same as in the past - Its good to have support from higher-ups. But if you can support your superiors in turn and push the other party in the direction you want, that would be obviously better. In fact, many people understand this truth. But understanding is one thing, implementing it is another. If you really want to do this, on the one hand it is very difficult. Not only must you have excellent skills, but you must also have sufficient insight. Otherwise, if you spend a lot of effort and finally find that your efforts are in the wrong direction, all your efforts will be in vain. On the other hand, the risks are also high. If something goes wrong, it is likely to be self-defeating and lead to loss of trust from superiors. Therefore, after hearing Chang Haonan''s thoughts, Ding Zhongli frowned slightly: "Although it is true to think so, but in operation... I am afraid it will be difficult to implement." Then he further explained: At present, the most accurate and common means of detecting the content of greenhouse gases in the atmosphere is definitely on-site or aerial measurement. However, due to various non-technical factors, it is difficult to carry out in many locations, so the spatial coverage is limited and can only be applied. Observe locally. "If you really want to conduct sustained and stable high-precision observations over a large area, or even on a global scale, you can only consider satellite remote sensing... For example, during the third assessment of the IPCC three years ago, the United States and Japan jointly issued A piece of data on carbon dioxide emissions from a coal mine in Shanxi Province, my country, and it is alleged that the emissions per unit output of this coal mine exceed the world average by seven times. Speaking of this, Ding Zhongli also had a somewhat indignant expression: "Because the other party was measuring space remote sensing, we couldn''t deal with it with sovereignty issues. Although we urgently organized an international joint inspection to clarify, we were still very passive for a time..." This completely involves Chang Haonans knowledge blind spot: "Is there still this matter?" "Too many..." Ding Zhongli shook his head helplessly "It is a pity that our country does not have enough technology accumulation in this area, and space launch resources are very tight. It is impossible to launch a satellite specifically to detect carbon dioxide concentration..." As a researcher majoring in geology and geophysics, he is used to living a hard life. Although this industry is said to be a science, the demand for resource investment is actually no lower than that of large-scale projects. If you really want to conduct high-level research, you will need to equip yourself with supercomputers, remote sensing satellite clusters, ground observation networks, and even strategic reconnaissance aircraft. Given China''s conditions at the beginning of the 21st century, it is indeed impossible to be so extravagant in a field that neither produces direct benefits nor involves national defense and security. In fact, considering that it is already August 2004, and the IPCC fourth assessment plan is due to end in 2006, even if the money is in place, China will most likely not have time to launch a satellite. Therefore, Chang Haonan initially considered another path. Use foreign data to slap themselves in the face. "We definitely can''t launch satellites ourselves." After thinking for a moment, he waved his hand and replied: "Let''s not talk about the issues of time and money... Even if it is really called up, others can turn around and say that our data is false... By then, although we will not be passive, we will just go back to talking about it. Status, it doesnt mean much "But logically speaking, greenhouse gas research should be shared by the whole world. The remote sensing results of foreign atmospheric carbon dioxide satellites should be made public to the outside world?" Faced with this seemingly incompetent question, Ding Zhongli was confused for a while. , I cant figure out why Chang Haonan, who was very sharp just now, suddenly got confused now. But he still replied: "It''s open to the public... but foreigners are not stupid. If they really want to falsify some key positions, they will definitely adjust the infrared spectrum released in advance to make the measurement data and calculation results match." "As for the first-hand raw data of the satellite...then we are even less likely to have access to it." After Chang Haonan heard this, he immediately asked: What ifits not just carbon dioxide? Ding Zhongli has been engaged in climate research for more than ten years, and he immediately realized what he meant: "You mean methane...or nitrogen oxides?" The so-called greenhouse gases are actually a large category, the most typical and famous of which is carbon dioxide. But there are actually many other categories of gases. If we look at the intensity of the greenhouse effect alone, carbon dioxide is not even a very strong one. It''s just that its absolute concentration is the highest, and it is a component that must be contained in normal atmosphere, so it is often taken out and beaten. "It''s methane." Chang Haonan nodded: Although the content of methane in the air is much less than that of carbon dioxide, it must also be considered that the formers ability to cause a greenhouse effect is more than 30 times that of the latter. Especially for those lay media and busy people, they cannot be expected to do anything. Knowing the difference between global warming potential and global warming impact is a good gimmick to use. Although he does not understand meteorology and geophysics, he happened to have studied several typical greenhouse gases from a chemical level for the AE1500 that is in the process of development. The main sources of methane are actually the ruminant activity of mammals, artiodactyls, oil extraction and crop cultivation. Except for the third item, none of these are China''s strengths. Ding Zhongli thought for a while: "But there is currently no particularly mature technical means to determine methane content through space remote sensing..." "What I mean is that although infrared hyperspectral satellites will detect carbon dioxide content and also provide data including methane, water vapor, and VOCs, in general, in order to accurately obtain the concentration of CH4, it is still necessary to The three methods of short-wave infrared, thermal infrared and active lidar cooperate... It may be difficult to obtain accurate data by relying only on single spectral data, especially second-hand data provided by others. " However, Chang Haonan showed a strange expression at this time: Why get accurate data? "???" Ding Zhongli had "Are you kidding me?" written all over his face. "Carbon dioxide and methane share a common absorption feature at 1.6 microns in the infrared spectrum." Chang Haonan''s next sentence was a bit nonsensical. But soon he continued: "In other words, you can choose the carbon dioxide concentration at the measurement point as a reference, and use the iterative update algorithm of the forward radiation transfer model and the inversion process to perform concentration inversion on the common absorption band with methane." "Technically speaking, if they deliberately reduced the concentration of carbon dioxide in the data, and did not correct other parameters related to methane because they were unprepared, then the retrieved methane concentration would be abnormally high... and considering the carbon dioxide The actual concentration in the air is generally dozens or hundreds of times that of methane, so the abnormally high level is very, very exaggerated. "In other words, they either admitted that they had falsified the public data, or they admitted that they had secretly emitted enough methane gas to destroy the earth..." (End of chapter) Chapter 1153 A gift from heaven Chapter 1153 A gift from heaven After listening to Chang Haonan''s set of interlocking schemes, the expression on Ding Zhongli''s face was very exciting for a while. If we sum it up in the way of later Internet era, it would be... 6. Not only borrowing a knife to kill someone, but also borrowing someone else''s own knife. The key is to cleverly exploit the psychological blind spots of most people. Before the final and most fatal output is played, it is almost impossible for anyone to prepare in advance. However, it is not completely without problems. Because the premise of all this is that a convincing enough algorithm can be produced so that the whole world, at least the academic community, can accept the methane concentration results derived from spectral results. Otherwise, you will end up shooting yourself in the foot. Yet academias ethics on climate and environmental issues It can only be said that it is better than the public opinion circle. But not much. In fact, even the two most famous comprehensive academic journals in the world, Science and Nature, have clear positions on many issues. If the submitted research results are inconsistent with the position behind the publication, then unless it is a god-level paper that is irrefutable, it will most likely be rejected. Therefore, Ding Zhongli still seemed a little worried: "Academician Chang, of course I believe in your theoretical abilities... But climate research is not the same as engineering projects. The cycle of observing the evolution of the earth is generally based on 10 years, and it is difficult to come up with a convincing enough experiment through experimental means. The result of strength..." "What I''m worried about is that the other party will directly encourage the academic community to come out to oppose the inversion algorithm itself, and the media and the public are obviously incapable of judging whether the algorithm is correct or not. In the end, it will become the case that whoever makes a louder voice will be justified. You know, we generally dont have any advantage in this regard His statement is still too conservative. China does not have an advantage in terms of public opinion. He was simply killed and his armor was thrown off. However, Chang Haonan did not expect to rely on domestic media from the beginning: "If a new atmospheric composition inversion method is directly proposed, the purpose is indeed too obvious... Even if the other party cannot directly object, they will be vigilant in advance, so that we lose the suddenness of the attack." "So I plan to start with a theoretical level that is not directly related to climate issues. After all, I am old in my field, and I have some influence in this area... until the mathematics and engineering circles basically recognize the theory that constitutes the inversion algorithm. After laying the foundation stone, we will launch more targeted and specific algorithms suitable for the field of atmospheric remote sensing. Seeing the other party''s confident look, Ding Zhongli immediately understood. This should have been drafted a long time ago. He originally wanted to ask what the specific theory was, but after careful consideration, he felt that this was not his area of ??expertise. It would be a bit embarrassing if the other party explained a lot of results and he didn''t understand them all. So I simply skipped the middle part: "Then after I go back this time, I will sort out the research results accumulated in the past in advance and prepare to assist you, Academician Chang?" "You can''t say that..." Chang Haonan quickly waved his hand: "Director Ding has been working **** the climate issue and arguing for more than ten years. If he becomes a auxiliary just because I intervened once, wouldn''t it appear that I am taking the lead?" In this matter, he was not prepared to take a direct stand. First, it is true that the division of labor between the two parties is different, and the IPCC meetings are basically held in Europe, and it is impossible for Chang Haonan to go abroad casually. More importantly, the AE1500 in a few years will still need to take low emissions as one of its core selling points. So he has to be a good guy now so that he can talk about environmental issues later. Otherwise, when others investigate, they find that it was you who was the one who interfered with the IPCC''s assessment report and climate agreement in the past few years, and then the boomerang will hit their own head... All in all, both of them were very satisfied with the meeting. After some more mutual compliments, they left separately... After returning to the laboratory, Chang Haonan immediately turned on the computer and wrote a series of titles on the first page of the document "An optimized Levenberg-Marquardt iterative algorithm for optimizing initial guesses and global convergence of damping coefficients. This was the first step in his plan. It is also the most important step. For satellite remote sensing, forward modeling is equivalent to describing the physical process between atmospheric parameters and observed values, that is, using the physical process of radiation transfer to simulate the radiance of the sensor. Correspondingly, the inversion process is to establish a cost function under the optimization theory and gradually approach the true value in an iterative form. Specific to the problem of atmospheric composition detection, in addition to the parameters that can be directly obtained by the sensor, the cost function also includes the error covariance matrix representing the observed radiation, the initial value of the unknown target vector, and the covariance matrix that can accurately describe the prior value of the background field. . Because the second term can use the "known" carbon dioxide concentration as a reference, it does not completely require empirical guessing. Therefore, the essence of the inversion problem becomes to seek the minimum value of the cost function. The most effective method that Chang Haonan could think of in a short period of time, but which would not arouse special vigilance, was to improve the Levenberg-Marquardt iterative algorithm at a theoretical level. After all, this algorithm can play a role in many iteratively solved optimization problems. This also includes machining and fluid dynamics calculations. As a mathematician with a background in computing science, it is normal for him to study this kind of subject. In fact, if he had more preparation time, Chang Haonan would be willing to consider some fast algorithms based on neural networks. Unfortunately, neural networks have relatively high requirements for spectral resolution and require a large amount of statistical data for model training. Considering that the IPCCs fourth assessment will begin at the end of the year at the latest, we still chose to seek stability. In fact, under normal circumstances, the normal order of writing a paper is the main body first, then the conclusion, then the abstract, and finally the title. However, Chang Haonan already had a rough idea of ??the entire content of the article, so after deciding on the title, he wrote the summary directly in order. But after writing only a few sentences, he stopped typing on the keyboard If he were the only author of this article, even with the title of Philippine Prize winner, it would seem a bit weak. Moreover, when Ding Zhongli uses it as a theoretical basis, others can also argue that "this is all a Chinese conspiracy" and so on. But if we can bring some foreign institutions into the water... Thinking of this, he immediately picked up the phone receiver at the corner of the table and called Liang Shaoxiu who was in Haojing... "So... you are saying that the thermal deformation error of the system point (ERS) during the aircraft assembly process can be optimized?" A few days later, Didier Casore looked at a research report written in two languages ??in front of him with a somewhat surprised look in his eyes. He has already experienced China''s theoretical foundation in aircraft pre-assembly. But even in the production plan at that time, the ERS point, as an enhanced reference system point for calibration, still needed to be manually calibrated by workers. It has only been more than half a year, and it seems a bit outrageous that even this step can be done without manual labor. However, his surprise did not last long. "Of course not yet." Liang Shaoxiu shook his head: "But on a theoretical level, it is indeed possible..." As expected, Casore took the bait, showing a somewhat struggling expression After the successful pre-production at the beginning of the year, people in the company asked every day whether similar technology could be used on Falcon 8Z or Rafale. Even the Airbus Group next door has people coming to make insinuations. This feeling of enjoying the stars and the moon is still very good. Unfortunately, he could only give a negative answer every time, and eventually let the other party leave with disappointed eyes. But now, there is an opportunity to follow up the research from the beginning... Belonging is the joy that comes from heaven. It''s hard not to be moved. However, Kasore still had some self-awareness after all, so he did not respond directly, but put on a distressed expression: "But I''m an engineer, not a mathematician..." "Me neither!" Liang Shaoxiu interrupted the other party pretending to be excited: "So I suggest that in the name of our two companies, we jointly sponsor a team composed of Chinese and French researchers to let them solve theoretical problems... In this way, we can focus on the later production and testing parts, and save money. Spend a lot of resources and time..." (End of chapter) Chapter 1154 market explosion Chapter 1154 Market Explosion Facing this pie-in-the-sky situation, Kasore was not completely without struggle and vigilance. He also considered whether the other party might want to take a long-term approach to catch a big fish and get something out of him or Dassault. But there is no way. Others give too much Before Kasore could raise his concerns, Liang Shaoxiu had already come up with a very low-risk and complete funding plan. To put it simply, the entire project is divided into three phases to be completed, and the risks of each step are kept to a minimum. For example, the first stage is just a purely theoretical study of the optimization iteration problem and does not involve any engineering part. The words "pure theory" represent low investment in most cases. This time is no exception. Two years, 100,000 euros. Or both parties invest together. The family only contributed 50,000 euros. This offer made Kasore not sure what to worry about. Not to mention the Dassault Group. Even he himself, as a company manager, would spend 50,000 euros without blinking an eye. Even if everything turns out to be in vain, there is almost no risk. And as long as you can achieve a little bit of results, it will be a real profit. As for the second phase, the investment is indeed much larger, but it will not be started until the results of the first phase are seen and mutually recognized by both parties. There seems to be no risk of being cheated. It can be said that it is full of sincerity. In short, even if Kasore wanted to refuse, he didn''t know how to say it. It was only out of the obsession that "even as a Frenchman, I cannot surrender so quickly" that I reluctantly asked the last question: "So...have you selected the researchers responsible for this work?" In his opinion, those who would take on such a task for a mere 100,000 euros would most likely be young scholars who suffer from insufficient funds. Due to the principle of reciprocity, I also had to find the corresponding type of technical personnel from French universities. However, these people are generally lacking in experience, and their ability is close to blind box opening. If possible, Casore would even offer to invest more in order to expand his options. "That''s right." Liang Shaoxiu showed a playful smile on his face: "Professor Chang Haonan of Beijing University of Aeronautics and Astronautics has said that if you can find an equal partner, he is very willing to take up this research..." Throughout the entire process from M88-2 to SeA650, to Falcon 8Z and the "Gaoming" project, Chang Haonan has almost never appeared directly. Liu Yongquan, Liang Shaoxiu and others have always been responsible for the docking, while he was behind the scenes and controlled the situation. So for Casore, this is not someone he knows. But this name sounds a bit familiar. "often" He even froze for a moment. But he quickly responded: "etc" Kasore suddenly raised his head: "You can''t be talking about that...Fields Medal from the year before last..." "Yes, that''s him." Liang Shaoxiu nodded and at the same time made a tactical retreat: "Don''t worry, although Professor Chang holds a position in the company, he has nothing to do with our group, so there is no suspicion of transferring benefits to him..." This statement highlights a half-truth. Chang Haonan does not have a name within the current Aviation Industry Group. But to say "it doesn''t matter" is indeed a bit far-fetched. But looking at Liang Shaoxiu with a leisurely expression in front of him, Kasolei only wanted to curse in his heart Yes, no benefits were transferred to Professor Chang. 100,000 euros to hire a Philippine award boss to stand on the stage. This is obviously someone delivering benefits to you! Of course, all regulations related to funding only involve upper limits, and there is no saying that scientific researchers cannot ask for ultra-low funding. So that''s not the point. The point is...now that you have invited a Philippine Award winner, you feel happy. But where can I find a Philippine award-level boss who is willing to accept a project with a funding of 100,000? Fortunately, Liang Shaoxiu took the initiative to resolve the situation: "Professor Chang said that he doesn''t look at titles but only abilities...so it doesn''t have to be other Philippine Award winners. As long as he has a certain reputation and reputation in the industry, he is willing to cooperate." Kasore finally breathed a sigh of relief. If that''s the case, then it doesn''t matter whether it''s money or not. Chang Haonan''s name alone is attractive enough to many people. Even as he spoke, several names appeared in his mind. Anyway, there is really no shortage of potential mathematicians in France... In fact, Chang Haonan''s main purpose of this wave was to borrow a name. As for the most critical improvement of the Levenberg-Marquardt method itself, he did not even use the system and completed it quickly by himself. If you don''t want to use the work of your collaborators to expand the main content of the paper, you can even publish it directly. While he was immersed in theoretical research, the outside world had already caused an uproar because of the statement from the United States Department of Agriculture. In fact, the production reduction in the agricultural states of the Midwestern United States is not news. Since the land in many South American countries has long been bought up by American companies, international soybean prices are not particularly dependent on the output of those states. Therefore, it is initially reflected in the futures market, which is price fluctuations within the normal range. What''s really terrible is that after the news of expected production cuts, several major agricultural companies quickly responded, saying that this round of climate disasters will not only affect the United States, but may lead to a reduction in agricultural production throughout the Americas. At the same time, due to the expected reduction in production, they will accordingly reduce the inventory size in the next 3-5 years to the lowest point in half a century - From a geographical point of view, since the American continent lacks tall mountains running east-west, the predictions and concerns of grain merchants are not unreasonable. At least no one dares to deny this possibility. And this finally triggered a violent reaction in the global market. You know, under normal circumstances, soybeans in the central United States are on the market in September every year. For the first seven months of this year, everything seemed normal. Therefore, when the news of production cuts suddenly came out in August, it was too late and impossible for the downstream industry to find other alternative suppliers. As a result, prices in the futures market finally broke through the rational range and began to skyrocket. Coupled with the fact that the financial giants on Wall Street took advantage of the news and added fuel to the fire by building crazy positions and speculation, in just about 20 days, the price of soybean futures rose from the original US$367/ton to an astonishing US$650/ton, and it did not slow down at all. room for gains. Under such circumstances, in order to ensure that there are sufficient raw materials to maintain operations, domestic downstream companies have made preparations to go overseas to purchase soybeans. Of course, there are also discerning people who have seen the anomaly behind this round of price surge. Logically speaking, international grain merchants have been operating in the grain market for many years and do not lack the experience and ability to deal with natural disasters. Even if it wasn''t intentional this time, it definitely had the purpose of fueling the flames. If domestic companies are really allowed to go overseas and buy a large number of futures at high prices, they are likely to suffer big losses at some point in the future. However, under the general panic in the entire industry, the voice of rationality seems so weak and unable to save the situation... "Team Leader Zhao, we have issued recommendations and warnings five times in a row, but the feedback below... is not optimistic." In an office of the Chinese Academy of Agricultural Sciences, a staff member reacted helplessly to Zhao Guangsheng, the leader of the expert advisory group of the Ministry of Agriculture: "Except for a few companies with state-owned assets background that agreed to postpone, only about 40 or 50 companies gave a positive response, and the rest have not stopped preparing for procurement. Several of the leading companies are even preparing to go abroad in groups and want to Taking advantage of scale, we purchased more than 10 million tons of futures at one time to obtain priority supply rights from ADM and Cargill..." As a senior consultant to the agricultural industry, Zhao Guangsheng has long been mentally prepared for this. So at first, he didn''t actually have much reaction. However, when Zhao Guangsheng heard the last two sentences, he still slapped the table in annoyance: "That''s ridiculous!" The assistant opposite was so frightened that he trembled. "It''s okay to purchase at high prices, but instead of trying to use the market size to lower prices, we instead unite with foreign grain merchants to engage in internal strife..." Zhao Guangsheng''s roar almost echoed through the entire corridor. However, its just impotence and rage Compared with staple foods that are firmly in the hands of the state, cash crops such as soybeans are indeed in a situation of almost complete freedom of development. Even the Ministry of Agriculture can only issue reminders and recommendations, but cannot actually force these companies to do or not do anything. After venting his anger, Zhao Guangsheng sat back on his chair helplessly and took a deep breath: "Help me draft a proposal to ask Sinograin to immediately release part of its reserves for market hedging. This will at least temporarily stabilize these companies. We cannot let them just go out to sea to buy goods..." (End of chapter) Chapter 1155 Construction of Saibei Granary Chapter 1155 Construction of Saibei Granary After receiving the order, the assistant quickly turned around and left the office as if running for his life, fearing that the leader''s anger would affect Chi Yu. However, before he could return to his office and start writing, Zhao Guangsheng received a call from Bi Liang, director of the Development Planning Department of the Ministry of Agriculture. The other party didn''t say any nonsense and asked straight to the point: "Old Zhao, the ministry is planning to let China Grain Reserves release 800,000 tons of soybean reserves. What do you think?" Obviously, the leaders have not been idle either. But he was thinking about the same thing as him. However, Zhao Guangsheng''s expression did not relax at all. After thinking for a moment, he replied: "In the short term, it should be possible to slightly hedge futures prices, but in the medium to long term, it cannot affect the general trend of price increases..." There was only silence on the other end of the phone... Finally, Zhao Guangsheng, who still couldn''t stand the depressing atmosphere, continued: "According to our calculations, if we only supply a basic limit of domestic consumption, combined with part of this year''s production, we can roughly maintain it until early summer next year... But if we take into account the panic among companies and people, as well as the speculators who are rushing to buy goods in the financial market, They..." In fact, he was anything but a defeatist strategist. But the current situation does not allow him to give an optimistic answer - Although the national special grain reserve system was established 14 years ago in 1990, its original intention was not to carry out strategic reserves in response to food shortages. It was just because successive bumper grain harvests caused serious oversupply in some areas, and the state stepped in to solve the problem of grain sales. . It was not until 2000 that the special grain reserve was officially transformed into a central grain reserve vertical management system, and the China Grain Reserve Corporation was established in the same year. As for clarifying its task of macro-control of the grain market, it will have to wait until 2003. It''s only been a year, and there''s no time to save much inventory. Although it can relieve the temporary difficulties, it is still clearly unable to hedge against the four major... at least three major grain merchants and Wall Street''s financial giants with abundant financial resources. As a product of the modern financial industry, when the futures market developed into the 21st century, it had already broken away from the scope of physical delivery to some extent. Sometimes it can even in turn dominate the supply and demand relationship in the physical market. Under such circumstances, if you want to suppress prices by simply releasing goods, you will never be able to do it with just a "sufficient" quantity. Referring to the "Two White and One Black" war in Shanghai in the early days of the founding of the People''s Republic of China, excessive material reserves had to be provided, so that speculators would either suffer from a broken capital chain, or lose confidence and dare not continue to stock up, in order to be able to survive . The current reserves of Sinograin are still too far away from this requirement. After a few seconds...or perhaps more than ten seconds, the other party spoke again: "What if we could get LDC''s support...or at least neutral status?" This question surprised Zhao Guangsheng. After all, I had never heard of any special relationship between Nongkou and Louis Dreyfus before. But judging from Bi Liang''s tone, he seemed very confident about it. But the problem is that among the four major grain merchants, they just managed to get the only one that is useless right now... "It doesn''t make much sense..." Zhao Guangsheng helplessly gave the same pessimistic answer as before: "If it is a staple food...including corn, then Louis Dreyfus does have a certain influence, but the soybean market is almost completely controlled by North America, and the French cannot play a decisive role..." For a moment, the scene seemed to be at a deadlock... The situation in the following days was almost exactly consistent with Zhao Guangsheng''s prediction. The 800,000 tons of inventory released by Sinograin did alleviate the overheating situation in the domestic market to a certain extent, but it was quickly swept away by the already eye-catching downstream companies. The second round of shipments that followed finally managed to suppress the plans of these companies to go overseas to buy goods at high prices. However, if the anxiety at the entire market level cannot be alleviated, then the only thing left to do is to stop the boiling water. Therefore, some positive signals must be released. If we leave it to the past, there is actually no good solution other than continuing to release reserves. After all, neither the financial market nor the public opinion position is in one''s hands. I can only speak for myself with the real thing. But now, there is really a positive signal that is at hand... So, one day in early September, Chang Haonan suddenly received a call, asking him and Zhuang Bingchang to go to the Academy of Sciences for a meeting in three days. Although Professor Zhuang had just returned to Mongolia Province not long ago, after all, the matter was serious and his superiors directly named him, so he still had to make a trip. Compared with a month ago, the number of attendees at this meeting was smaller, with less than twenty names on the full list, and the format was closer to a traditional symposium. But the specifications are even worse. Moreover, it is also closer to a staffing that can directly make decisions. "There''s a show!" As soon as Chang Haonan walked into this room, he immediately raised his psychological threshold. Zhuang Bingchang, who followed him through the door, also performed much more skillfully after experiencing the last big scene. I greeted everyone present in turn, then sat down in my seat, opened the document in front of me marked "Internal Information", and read about a hundred or ten pages. After another ten minutes, the remaining empty seats were gradually filled. The meeting officially began as the elder sitting at the head opened the microphone. "I think all comrades have already understood the developments in the international market in the past half month." When the big leader presides over the meeting, he does not need so much preparation, but goes straight to the topic: "Sinograin has planned to release the third batch of 800,000 tons of soybean reserves, which is expected to stabilize market sentiment until the end of October. However, continuing like this is not an option. The inventory in our hands is limited and must be supplemented by other means to boost the entire industry. Confidence in the raw material market. "At the beginning of last month, Comrade Chang Haonan once proposed that sand modification technology could be used to transform three desertified sandlands in eastern Mongolia Province into farmland with farming conditions. Therefore, we plan to launch the project during the critical stage of this year''s autumn harvest. A new high-standard farmland construction project Compared with 2007, when the second soybean war occurred in the previous life, the current time has a huge advantage. Even though thousands of related domestic companies are still in their own hands, they have not been bought out by international grain merchants. They may hoard raw materials beyond normal reserves out of panic, but as downstream members of the industrial chain, they have no motivation or strength to actively hoard goods and drive up prices. It is also much easier to calm down the situation. After the general leader''s outlining speech, it was the turn of the relevant departments to express their positions. The first is of course Li Zhongyi from the Industrial and Construction Committee: "During this period, we have conducted a situational analysis of the two main raw materials mentioned by Academician Chang last time. Among them, polyacrylamide is a very common water-soluble polymer product. The expected domestic production capacity is 250,000 tons per year. There is also an import volume of about 30,000 to 50,000 tons, which can basically fully meet the needs of the pilot project. "But the other way..." Having said this, he paused for a moment and glanced in the direction of Chang Haonan: "Sodium carboxymethyl cellulose has previously only been used on a relatively large scale in the food industry and oil mining industry. The total output in the world is only about 300,000-400,000 tons per year, and the domestic production capacity is only about 100,000 tons. However, we have contacted state-owned enterprises in relevant industries and are doing our best to ensure the priority supply of strategic projects..." Next is the State-owned Assets Supervision and Administration Commission: We plan to stop the restructuring plan planned by Huaxia Aquatic Products Group Corporation and Huaxia Animal Husbandry and Industry and Commerce Group Corporation next month, and instruct the latter to fully cooperate with Huaxia Agricultural Reclamation Group Corporation to ensure sufficient quantities of related forest and grass products, fertilizers and pesticides Supply, and communicate with local pastoral areas in a timely manner to avoid land use disputes..." The leaders of the Ministry of Agriculture also followed suit: "Among the three areas proposed by Academician Chang last time, winter is about to begin in the Hulunbuir Sandy Land, and the temperature is approaching subzero, making it difficult to further carry out sand transformation work. However, there are roughly three areas left in the Horqin Sandy Land and Hunshandake Sandy Land. Within a month''s time window, according to the data reported by the Mongolian Provincial Farm Reclamation, they can allocate more than 23,000 employees and no less than 1,000 vehicles (sets) from 118 state-owned farms and ranches without affecting the progress of the autumn harvest. equipment" "In addition, if the demand still cannot be met, further support can be obtained from the agricultural reclamation agencies in the three northeastern provinces..." Although it was not a military project, the industrial and agricultural systems still demonstrated to Chang Haonan the efficiency of mobilizing the power of the entire country. These resources will definitely be a drop in the bucket to support the 40 million acres plan in the first phase of the project, but if they are pooled together, there is still a chance to complete the million-acre transformation task. The only problem is time. In agriculture, progress cannot be caught up by just working overtime. Of course Chang Haonan understood that the superior''s intention was not to use the output of his million acres of land to help the market, but to use this plan to provide confidence to the domestic market. International capital is not a deus ex machina villain NPC. They also need to borrow money from banks to open positions and speculate in stocks, and they also have to bear the corresponding cash flow pressure. In the same way, the four major grain merchants also need to rent land and granaries to hoard soybeans, and they also have to bear the losses of long-term storage. Therefore, as long as we can withstand this wave of attacks, when the expected severe natural disaster does not occur at the turn of next spring and summer, the opponent will be unable to hold on. But knowing it all, Chang Haonan still suppressed the excitement and emotion in his heart and gave everyone a vaccination in advance: "Using soil fixatives to transform sandy land is only the first stage of the entire plan. Later, it will need to be reinforced through the roots of herbaceous plants, and then modified soybeans will be used to restore soil fertility. The entire cycle will take about 2-3 years. , Regarding the bean shortage problem, I am afraid that water from a distance cannot quench the thirst for nearness. " "In addition, the soybean varieties we use for modification focus on drought and salt-alkali tolerance, and are not outstanding in terms of yield..." Sure enough, the leader in front waved his hand, indicating that he didn''t need to say more: "Rest assured, we will not make demands that are divorced from the actual situation." "As long as by next summer, the planned farmland can turn green and grow soybean crops that everyone can see and touch, this ''Saibei Granary'' plan will be considered a success!" (End of chapter) Chapter 1156 Reaction from across the ocean Chapter 1156 Reaction from the other side of the ocean After the overall plan is finalized, all that remains are the technical details. For example, the ratio of the two raw materials polyacrylamide and carboxymethyl cellulose sodium, the selection of auxiliary salt solution, and the detailed steps of the entire soil fixation process. In fact, under normal circumstances, such high-level meetings will not discuss overly specific operational issues. After all, if everything is too micromanaged, the value of the hierarchical leadership system will be lost. But this time, after all, the incident happened suddenly, and many resources were allocated directly by the ministries or the general bureau level. Therefore, it was inevitable for Chang Haonan and Zhuang Bingchang to lead a round of inspection and correction to ensure that the preparations before the start of construction were flawless. However, the two of them had already reported everything about the situation during their last meeting, and those who hold high positions are all thoughtful people. But no mistakes were found. The only pity is that there are currently no high-yielding crops suitable for planting in modified sandy soil. It can only take a few years to cultivate the soil conditions before planting the same varieties as those in the black soil of Northeast China. This is also within the acceptable range of everyone. After all, being able to turn unusable and increasingly degraded sandy land into farmland is an unexpected blessing. How could there be a more excessive request? However, just after Zhuang Bingchang finished talking about this, a leader from the Academy of Agricultural Sciences suddenly spoke: "Academician Chang, Professor Zhuang, regarding crop breeding, I can help contact the founder of domestic plant molecular biology, Academician Xin Zhiwen." "In 1998, Academician Xin took the initiative to coordinate the cooperation between Yenching University and the Chinese University of Hong Kong to build a joint laboratory for plant genetic engineering, which included functional genome research on rice and soybeans. Later, he and Yuan, who we are all more familiar with, In cooperation with academicians, we have conducted research on lodging-resistant and disease-resistant rice, and the results are quite good..." After finishing speaking, maybe he was worried about being misunderstood, so he added a special sentence: "In the research of Academicians Xin and Yuan, molecular genetic technology is only an auxiliary means, and it is not the same technology as the transgene we usually hear about..." Chang Haonan knew almost nothing about the field of biotechnology, so he did not express any opinions and just told Zhuang Bingchang to make his own decision. And this proposal is equivalent to directly raising the latter''s status by several orders of magnitude. He readily agreed. "So" After confirming that no one had any other questions, the elder sitting at the head closed the notebook in front of him, and his eyes calmly and enthusiastically swept over every face in front of him: "For the entire high-standard farmland construction project, the state will set up a special working group, and I will be personally responsible for the pilot phase... If you have any difficulties or needs at work, you can skip the intermediate level and contact me directly to solve it." "Next, let me assign tasks..." Under the direct intervention of the highest decision-making level, the entire state machine began to operate efficiently and precisely. Soybeans are sensitive to cold and have a long growth cycle, so it will definitely be too late to plant them this year. However, September and October happen to be a good time to sow grass seeds. In particular, the selected varieties such as Elymus elegans, naked oats, and Tibetan sandgrass are native to the plateau and are cold- and drought-tolerant. If you act quickly enough, you can enter the growth stage or even the maturity stage before the cold winter comes. These weeds were not originally planted to harvest, but simply to use their roots to strengthen the soil, so it didn''t matter even if it snowed early. For a time, the entire area south of the Greater Khingan Mountains in central Mongolia was filled with lively and busy scenes. Trains and trucks collect bags of raw materials from all over the country to the newly built mixing area, and then mix them with ferrous chloride and water according to the mass ratio of 0.25:0.045:0.03:25 to form a milky suspension, and then mix it with the sand. Solidified sand is formed. The tractor pulls the rotary tillage and ridging machine to treat the already bare dry sand according to farmland standards, then fills the deep pits and shallow trenches with solidified sand and additional solidifying liquid, and finally sows grass seeds... In short, if it weren''t for the fact that the land under their feet was yellow instead of black, it would have looked like they were plowing in the autumn after harvesting crops... On a ridge in a field, two agricultural technicians wearing coarse cotton clothes were holding their arms together and staring at the curing agent being mixed with the sand in front of them. Perhaps because this job was too monotonous, the two of them still had a lot of free time to chat and joke around. Naturally, they soon came to the strange-sounding task at hand: "I said, Lao Li, let''s just fill in this... stuff, and we can grow crops in this yellow sandy land during the New Year?" One of them wrinkled his nose and asked with some hesitation in his tone. As an old technician from the reclamation area in western Mongolia Province, he has been fighting desertification for almost half his life, and he considers himself to be half a veteran of desertification control. However, the commonly used method in the past was to first use grass squares and sand-fixing nets to form wind-proof walls to prevent sand accumulation. After the sand in the middle of the squares was effectively crusted, a small number of shrubs and grass species were gradually planted. It is indeed useful, but it generally takes 5-7 years to form soil with average fertility, and the efficiency is relatively average. Such operations directly on the sand itself were absolutely unheard of before. Although the man standing opposite him was called "Old Li", he was actually a bit younger in appearance. He moved the water collecting funnel to the next pit and smacked his lips: "I guess... since there is such a big battle up there, it must be reasonable..." The two of them kept talking back and forth, but the movements of their hands did not stop at all. After finishing the whole ditch, he straightened up with support on his sore back and planned to rest for a while. "But this is really different from our past methods. If we had left it a few decades earlier..." The technician who spoke first took out a pack of cigarettes and prepared to talk about his early experiences. But at this moment, a voice suddenly came from behind them: "From the accents of the two of them, I think they are from the western region, which is an arid area with desertification. Engineering measures such as grass grids must be used to retain water and increase fertilizer. But the eastern area is semi-arid and semi-humid desertification, so chemical measures and chemical measures can be used directly. Biological measures for sand fixation. "The two raw materials you just filled in have both long-chain hydrophobic main chains and surface-active hydrophilic branches, so they can wrap and cross-link with the surface of soil particles, thus strengthening the soil..." The two turned around and found a young junior who was estimated to be in his thirties. He was wearing a brown jacket. Although it was stained with mud, judging from his white hands, he didn''t look like someone who had been doing rough work for a long time. Behind him was another man who looked quite strong. After a few more seconds, the two of them realized that the sentence they had just spoken was answering the question they had accidentally talked about. Obviously, the other party has been following for a while. There is no doubt that this person is Chang Haonan who came to inspect the project. According to the previously determined division of labor, he only needs to provide technical support and does not undertake any front-line tasks. But after all, he is the project leader who has received funding, so it is impossible for him not to show his face at the beginning of construction. By the way, its also a holiday for myself who has been busy for more than half a year. However, according to Chang Haonan''s character, he definitely can''t take any time off. So I walked around the area to see if there were any problems that I hadn''t noticed before. When I explained the principle of chemical sand fixation to those two people before, I didn''t really want them to understand. I just used it as an opportunity to catch up on the conversation and get closer. But before he could ask what happened next, Zhuang Bingchang came running over from a distance. "often-" I was about to call out the title, but suddenly I saw some people waiting nearby, so I quickly stopped and walked closer before lowering my voice: "Academician Chang, Director Luan of the National Space Administration brought an inspection team over and said it would be arriving soon. Look..." Luan Wenjie''s appearance here was indeed beyond Chang Haonan''s expectations. After all, the business in charge of the other party has nothing to do with the loess in front of you. But after all, they are colleagues in the same system. Now that they have met, they must be received. "Let''s go, take me there to see..." The two technicians looked at each other''s back as they suddenly left, but they were still in a state of confusion. It wasn''t until the burning cigarette burned one of the people''s fingers that he suddenly retracted his arm and his brain started working again: "This person looks young, but he always feels like he has a lot of background..." "really." Another person also threw away the cigarette **** with only one **** left: "I''d say the least I can say is a farm director!" This wave of land reclamation in eastern Mongolia Province is huge. Tens of thousands of people and thousands of sets of equipment are directly involved. It is impossible to hide from the eyes of other countries. In other words, I was not prepared to hide it. Instead, there was a fairly high-profile campaign from the beginning. "Don''t be afraid of the wilderness and hope to spread, and create another Great Northern Wilderness." From the very beginning, Huaxia made it clear that it would build a new reclamation area across Mongolia Province with an output that would match the Beidahuang Group, and planned all the area in the first phase of the pilot to be a soybean planting area. The purpose is very clear, which is to counter the current rising price trend of futures in the international market. For the United States, which hopes to control the Chinese market, this is obviously not good news. Later in the day. 201 SW 14th Street, Washington, DC. Agriculture Minister Ann Veneman looked at a newspaper from China in front of her with a gloomy expression. Of course, as an American, she must not be able to understand Chinese. Therefore, Assistant Minister Sergei Edmund, sitting opposite, was holding a report to introduce the situation: "According to public reports from China, they plan to build at least 7 million acres of high-standard farmland within 10 years. The preliminary pilot projects have now begun. Judging from the results of satellite reconnaissance, the area involved is no less than 400,000 acres..." "Strange... hasn''t China been implementing the policy of restoring cultivated land into forests, grasslands and lakes in recent years?" Minister Veneman looked like he had seen a ghost: Where did they get all that land? At the beginning of the 21st century, the total amount of soybeans imported by China each year was about just over 10 million tons. Among them, about 60% are from North and South America. Under such a base, if the annual output of one million tons is suddenly increased in its own country, it will indeed have a significant impact on the market balance. You know, the futures market is all about emotions. If the other party is allowed to calm down the panic, then it is really possible to get through this crisis safely. At that time, the speculators who took advantage of the opportunity to go long will not only lose all their money, but at least lose their pants. "The report didn''t make it clear." Edmund replied: "But judging from their promotional slogans, it seems that they have reclaimed the originally degraded grassland..." Hearing this, Veneman frowned slightly: "This matter must be investigated clearly..." "Even if we can''t interfere with their reclamation operations themselves, we still have to find a way to make the market believe that these farmlands will not be able to effectively produce any crops for at least a few years!" (End of chapter) Chapter 1157 The proper meaning of science Chapter 1157 The proper meaning of science Upon hearing his minister''s request, Sergei Edmund felt his eyes darken. The trade of agricultural products is subject to the difficult-to-shorten production cycle and the relatively short storage characteristics of the products. Even physical transactions basically require orders to be placed a year or more in advance. In other words, the orders for the crops that will be harvested soon from September to October this year were actually signed last year. If there is a problem with this part of the delivery, the grain dealer will need to pay a huge penalty to Party A who has already paid. So what they are currently hyping is actually the market in the next two years. The most perfect way to unfold the plan should be that China''s downstream companies are worried about futures prices rising further, and before next summer, preferably in early spring, they enter the market at a precise high level to grab a large amount of supply. Then they can announce "just in time" after spring sowing that the impact of the disaster is not as great as expected, will not affect soybean production, and may even lead to a bumper harvest. As a result, the price of the futures market will be hit again. You must know that the prices of final feeds and oils fluctuate with the futures prices of raw materials. As a result, those Chinese downstream companies can either use high-priced raw materials to produce low-priced finished products, and the more they produce, the more they will lose, or they can only bite the bullet and return the goods and pay huge liquidated damages. Except for a few companies with big businesses or strong support behind them, the results of these two choices are basically the same. It''s nothing more than the difference between jumping from the 30th floor or the 20th floor. At that time, it will be the time for grain merchants to enter the market and hunt for low prices. This method is not a new one. It has been used in many emerging markets and has proved to be successful. Almost all agriculture in South America has been captured by American companies using the same method. The only problem is that the time nodes must be controlled very accurately. This time, it was obvious that he had encountered a more difficult opponent. Maybe he really saw through the key at a glance, or maybe it was just good luck. In short, the ruthless work of "directly reclaiming millions of acres of land" really hits the crux of the whole matter. After all, you can tell at a glance whether you will be able to grow anything next spring with the shelves on your ground, and there has already been such a big campaign, with all-round publicity on TV, newspapers and radio, it is definitely not something you can just find a media outlet to say. It can be fooled in just two sentences. With this million-ton production base, even if those downstream companies will still go out to sea to sweep goods, they will definitely be more cautious in terms of contract quantities. And if the above set of combos just makes the opponent bleed but can''t kill him directly, it''s basically a waste of time. Just working for a banker at the top of the food chain. Thinking of this, Edmund couldn''t help but curse in his heart: "Fxxk, what a bunch of worms who only know how to **** blood..." Of course, I would not dare to offend the bank boss with my words, so I could only follow what Minister Veneman said just now: "Your Excellency, Minister, if we want them to reclaim the land, then we may be too late to do anything. We must take advantage of this period of time and respond in advance..." To be honest, Edmund doesn''t have any good ideas now. However, Veneman does have something to offer as the first female Secretary of Agriculture in U.S. history. After a while, the draft was already drawn up: "I remember that China has been having a lot of trouble over environmental protection issues in the past two years, especially the sand and dust weather faced by large cities in North China is getting more and more serious... It just so happens that the IPCC is about to start the fourth round of assessment, and an inspection team can Go over there and put some pressure on them..." "Also, you can find a few domestic media in China that have received sponsorship from our foundation, and let them put some pressure on the country at the same time..." Edmund quickly wrote down all these contents. But after checking it over again, I felt it was a little thin. So he tentatively asked: "Relying on environmental issues alone...even with pressure from international organizations, isn''t it a bit unreliable?" In the face of doubts from his staff, Veneman seemed quite comfortable. As the most typical beneficiary of the revolving door mechanism, she had been an executive at Monsanto for many years before serving as Secretary of Agriculture. We are familiar with how to bring down agricultural production in a region, and it can even be said to be path dependent: "This is just the first step...the real killer move comes later." She shrugged, then picked out two pages from the report in front of her and put them back in front of Edmund: Since around 2000, China has been systematically restoring cultivated land and pastures to grasslands in some areas. One of the focuses is eastern Mongolia Province, and now they are suddenly reclaiming land for farming in this area... We can take advantage of the potential agricultural and animal husbandry behind this Industrial conflicts, or even ethnic issues...Compared with environmental protection, this is a real trouble for China. "In addition, find a way to find someone to investigate on the spot...This matter is not urgent now. We will wait until next spring, and finally." I hope I can get some of their bean seeds back and see what the situation is like..." It is early in the morning in the Eastern Time of the United States, and it has already entered the evening in China Time. Chang Haonan also saw Luan Wenjie and his team who came to investigate. They were standing on a high ground with them, and the on-site person in charge of this area introduced the situation. It has only been ten years since the construction started. Although the degraded sandy land that was once full of loess has not turned into fertile black soil in one step, it has already had some fresh greenery. It is truly full of vitality, and the scene of all things competing is still before our eyes. "It seems that Academician Chang is not only passionate about the military industry, but also makes great contributions to people''s livelihood..." Nine-and-a-half out of 10 people of Luan Wenjie''s generation are from farmers. Even if their research direction and jurisdiction have nothing to do with agriculture, they always have a special affection for the land. Therefore, this sentence is not entirely polite. Chang Haonan was originally going to respond in a normal way, but something suddenly popped out of his mind. So he spoke almost subconsciously: "I don''t like weapons, I love peace... Just for peace, we need weapons." This sentence is certainly not original to him. But no one will bother with this. At least Luan Wenjie didn''t expect that the original casual greeting would develop in a philosophical direction, and he was immediately stunned. After a few seconds, he spoke stiffly: "Yes...Science, in the final analysis, should be used to benefit mankind..." As the topic began to veer off course, Chang Haonan finally took the initiative to return to the topic: "Come to think of it, Director Luan... why are you suddenly interested in agriculture?" Luan Wenjie didn''t go around too much and waved his hand immediately: "I''m not interested in agriculture, but in your methods and theoretical basis for studying geotechnical dynamics and composition..." As he spoke, he squatted down, grabbed a handful of modified sand from the ground next to him, and placed it in his hand for a closer look. Although the barrenness can still be seen at a glance, at least it is no longer the discrete state that was almost impossible to grasp in the past, but has formed a rheological state with viscosity and agglomeration. That is, close to the state of soil. After a few seconds, he threw the sand in his hand back to the ground, and then slapped his palms back and forth a few times: "If sand can be turned into soil, then does the regolith after weathered rocks also have the potential to be modified?" Chang Haonan thought for a moment and then replied: "Theoretically, this depends on the specific conditions of the regolith... After all, the prerequisite for sand to turn into soil is that they have similar chemical properties." "But considering that some soils on the earth are themselves the product of rock weathering, I personally guess it shouldn''t be a big problem... as long as it doesn''t contain any outrageous organic or heavy metal components..." In fact, this is quite an optimistic answer. It was just out of caution that I didn''t say anything solid. However, Luan Wenjie''s next question still made Chang Haonan feel lucky for his caution just now: "What if...the regolith is not on Earth?" "???" Chang Haonan turned his head almost subconsciously and glanced at the other party. He vaguely remembered that when this project was first launched, he and Ding Gaoheng had accidentally chatted about similar topics. But because it was too far away, I just mentioned it casually. But Luan Wenjie looked serious now, not joking. "Moon?" "No...it''s Mars." (End of chapter) Chapter 1158 Unexpected efficacy Chapter 1158 Unexpected Curative Effect "Are you all already preparing to land on Mars?" Chang Haonan asked half seriously and half jokingly. Although on this timeline, the time nodes of several major projects of China Aerospace Engineering have not been significantly advanced, but when it comes to basic research, the progress is actually not much slower than the aviation field, which is constantly changing. But because the new generation launch vehicle is still under development, many plans can only remain on paper. Luan Wenjie did not directly deny it, but just smiled and waved his hand: "Landing on Mars is still a bit far away..." "But we have now proven that we can maintain the normal life and work of astronauts in extraterrestrial space. The next step is to start pre-research on extraterrestrial planet detection technology... such as core topics such as in-situ material modification and application , as long as it is theoretically feasible, it should be included in the pre-research project. One generation of equipment, one generation of design, and one generation of pre-research. Not only the military industry, but also most R&D projects in China adopt similar working methods. However, after all, not all equipment has the same clear generational classification as fighter jets, so there must be some differences in specific expressions. After confirming that the other party was serious, Chang Haonan also suppressed the smile on his face: "Our current exploration of the surface of Mars is still in a relatively preliminary state, so it is difficult to directly draw conclusions about what components are contained in the surface regolith. And if we really want to plant on Mars...or any space, soilless cultivation will be difficult. The technology should be very mature, right? In fact, there has been a proposal to grow vegetables directly on the International Space Station from the very beginning. However, in 2004, several experimental cabins had not yet been built, so it had not really started. Judging from the situation in the previous life alone, the results are quite optimistic. The most troublesome thing is the weightless environment itself. But if it is on an extraterrestrial planet, then there is no need to worry about it. "I didn''t mean plants..." Luan Wenjie replied directly: "As far as what is known so far, the nitrogen content in the atmosphere of Mars is very low, and it may be difficult to support the growth of common plants on Earth. If we want to use microorganisms or algae to change the environment of the entire planet... it will definitely not be of our generation. Something people can think about. Having said this, he changed the topic again: "Effectively, we are thinking about doing the necessary production and construction work with in-situ materials from Mars..." At this time, Chang Haonan finally understood. If we only start from the perspective of maintaining survival, then human beings'' demand for food is actually quite limited, and the recycling of water and air is already a fairly mature technology even for the current aerospace industry. So even if these things are transported from the earth, it is completely acceptable. But if other consumables and raw materials are also launched to Mars using rockets, the cost will be too outrageous... He lowered his head and thought for a moment: "In principle, the material particles formed by space weathering will be sharper than the common sand particles on the earth. Therefore, it is easier to form solid materials with good interlocking properties. In addition, weathering products like basalt or similar rocks are also Can be used to make fibers "But what is still lacking at present is that one must first know the chemical composition of the regolith, and then it is possible to judge the feasibility of modification, or further provide a specific modification plan. The other is that the environment on the surface of Mars is different from that of the Earth. Many materials that we think are usable and useful on earth may have some unknown problems there, and these need to be verified in advance..." Anyway, it was just an exchange between the two of them, so Chang Haonan didn''t speak too tightly, and just went through all the questions that could be thought of in his mind. This process alone took almost twenty minutes. It wasn''t until Chang felt that his mouth was dry and he turned around to get a bottle of water that he realized that the other party was not just listening, but had already taken a notebook and written down everything just now. After noticing Chang Haonan''s shocked eyes, Luan Wenjie also showed a mysterious smile, and then put the pen aside: "Let me summarize it and see if there are any omissions." After finishing speaking, without waiting for the former to nod, he continued: "First, we need to obtain the morphology and composition data of the regolith on the surface of Mars. It is best to sample and return it for detailed analysis." "Then we need to use the regolith as raw material, conduct modification tests on the surface of the earth, and find out the technology feasible modification options. "The third is to deploy modified Mars in-situ materials or earth materials with similar properties on the surface of Mars for testing to verify their ability to withstand exposure to the Martian atmosphere and radiation environment." "Then, the modified raw materials are transported to the surface of Mars and the regolith is tested for in-situ modification..." Luan Wenjie didn''t just record what Chang Haonan just said. Instead, he directly listed a rough list of plans. Although this is still far from a rigorous project plan, it doesn''t look like that kind of trivial pre-research... Chang Haonan put down the mineral water bottle in his hand and sat opposite Luan Wenjie: "Are you serious about this?" A trace of hesitation flashed across the latter''s face, but in the end he answered frankly: "Actually, I can''t say whether this is true or not..." As he spoke, he rubbed his temples with some distress: "We, the Russian Space Agency, and a European space exploration agency are ready to sign a cooperation project in the field of Mars exploration..." "In terms of purpose, this project is more about expressing a win-win attitude of cooperation, but after all, we still have to actually launch a set of detectors, so we thought, since we have already done it anyway, why not do something practical and useful? Scientific research The sudden amount of information was a bit too much, and even Chang Haonan took a while to savor it. In the previous life, China did sign a similar cooperation agreement with the Russian Space Agency in 2007. The final product was the Yinghuo-1 orbiter and the Forbes-Soil sample returner. But the object of the latter study is not Mars itself, but Phobos. And it failed in the end. Of course, this timeline has changed beyond recognition now, and it might as well be a little more off. As for the failure to change orbit after launch... In fact, as of 2011, humans have launched a total of 40 probes to Mars, of which only 15 eventually reached their destination. There is a lot of uncertainty in itself. And detecting Mars is much easier than detecting Phobos. Nor should we simply hold a pessimistic attitude because of the circumstances of our previous life. What''s more, the situation in China and Russia today is much better than in the previous life, plus Europe... etc Thinking of this, Chang Haonan suddenly realized that something was not right. "Europe?" He asked in a somewhat uncertain tone: "ESA took the initiative to come over and cooperate with us? Or is it on this kind of interstellar exploration project?" You must know that at the beginning of last year, ESA rejected China''s invitation to cooperate in the field of global satellite positioning systems. Although the subsequent live broadcast of Shenzhou 5 in space was indeed very successful, and it had the purpose of attracting partners from the beginning. But is the effect a bit too good? Luan Wenjie shook his head: "Strictly speaking, it is not ESA, but a commercial space company established in Spain... But this company is a white glove company, and the person who even came to negotiate with us was Bernard Kandel, ESA''s policy development adviser, and Director Dordan also confirmed the authenticity of this matter with us in private. "Although the other party did not reveal any more information, but..." He raised his head and glanced meaningfully at Chang Haonan opposite: "It is probably affected by last year''s Shenzhou-5 mission..." (End of chapter) Chapter 1159 Give up the self-verification complex and enjoy a happy life Chapter 1159: Give up the self-verification complex and enjoy a happy life In fact, many times, it is not just ordinary people whose opinions need a symbolic event to change. The same goes for many seemingly big people and even high-profile organizations. The problem of quality fraud in Japanese products has actually been evident since the early 1990s. But it wasn''t until it was designed by Chang Haonan a few years ago that it finally affected the entire European and American market. Another example is the Olympic Games. To a certain extent, it was through the Beijing Olympics that China in the previous life truly achieved its goal of "going global." Of course, Tokyo and Paris later are another story... In short, it is precisely because of this that various countries generally attach great importance to some benchmark projects or projects. Just like last year''s Shenzhou 5. It can be said that even if Shenzhou 6, 7, and 8 are launched later... Taken together, they will not be more influential than the ground-breaking Shenzhou 5 mission. This is why the superiors agreed to Chang Haonan''s crazy-sounding plan in the first place. Because once successful, the impact will be exponential. Just like now. If ESA comes forward directly and engages in such big work as extraterrestrial planet detection, it will inevitably cause an uproar and a violent backlash from vested interests. But by using commercial aerospace to cover it up, everyone can get by in terms of face... However, it can only be said that Europe at the beginning of the 21st century is not considered brain-dead, and it can open up the commercial aerospace market circuit in less than a year. I wouldn''t dare think about it 20 years later. "So...are they planning to hedge their bets?" In 2003, ESA participated in the MER Mars exploration project led by NASA in an official capacity. Now it has stepped in here again, obviously with the idea of ????walking with two crutches. "Don''t say it so harshly..." Luan Wenjie replied righteously: "Space activities are a noble cause that benefits all mankind. How can we analyze the problem with a narrow perspective of taking sides?" Chang Haonan almost laughed out loud: "Yes, yes, you are right..." After some joking, the two quickly returned to the topic. This time, Chang Haonan got straight to the point: "So, you can provide so much useful data and draw such a big pie for me...Tell me, what do you need me to do?" A trace of embarrassment flashed across Luan Wenjie''s face when his intentions were revealed, but he was an experienced veteran after all, so he quickly returned to normal: "Actually, I don''t need you to do anything personally, Academician Chang... I just think that when we develop the ground-to-fire communication relay system in the future, we may need you to provide some successful experiences in the past..." Compared with extraterrestrial orbit and the moon, Mars and the Earth are two celestial bodies that can be generally considered unrelated to each other, so the conditions for direct communication are often more severe. Calculated according to the approximately 26-month period of the Hohmann transfer orbit between Earth and Fire, one-third of the continuous period is unable to communicate normally due to solar interference. And the rest of the time, the communication window is not coherent either. This is undoubtedly making matters worse for the communication process where the amount of data can only be calculated in Mb/day. The functions of early Mars probes were extremely limited, the amount of data generated was very small, and their lifespan was relatively short. In many cases, they could not persist for a complete cycle, and intermittent data transmission was acceptable. But if it is a more advanced model in the 21st century, then data accumulation is likely to occur. Just like the situation faced by Ocean One. In this case, it becomes a natural idea to establish a ground-fire relay communication network. I think this is also one of the key technologies to impress Europeans. "Of course there is no problem in principle." After roughly judging the situation in front of him, Chang Haonan made the decision and nodded: "But I have to go back and discuss the specific participation methods and levels with my brother units..." Chang Haonan himself went to Mongolia Province only to inspect the project situation, so after making sure that all work was carried out normally according to the previous deployment, he returned to the capital directly with Luan Wenjie. In fact, in the past few days, the project report has been completed by Zhang Liangping, who was accompanying him. He only needed to sign and submit it, and then he could temporarily put down his work here and go to Haojing After nearly one and a half years of research and development, the AE1500/turbofan 20 has basically completed the verification of several key technologies. Among them, the military model turbofan 20 needs to ensure 100% localization rate, so it will use relatively conservative materials and processes on the hot end, and the progress will be accelerated. The next step will be to enter subsystem level production and testing. In addition, the engine pod adapted to the Yun 9 is about to complete the wind tunnel testing stage. As the project leader, he definitely needs to be present to preside over the work. However, when Chang Haonan arrived at the Academy of Sciences early the next morning with the report, the situation suddenly changed. "Academician Chang, look at this." Ding Zhongli held a newspaper and a folder in his hands and stopped Chang Haonan at the door of the office. Although the latter couldn''t spare his hands for a while, he still saw the huge bold title on the newspaper page at a glance: "Climate Risk Warning: China''s huge setbacks in environmental protection may lead to extreme dust and pollution weather throughout East Asia" And the folder was quickly opened by Ding Zhongli himself. It is the basis cited in this column. A "definitive report" issued by the U.S. Environmental Protection Agency. As for the content You don''t even have to actually look at it, you can guess pretty much everything. It is nothing more than the belief that reclamation in eastern Mongolia will lead to a series of ecological disasters. Chang Haonan had seen similar routines in his previous life. Around 2014. Combining internal and external pressures, Chinas air quality problems are used to make a big fuss. Although the method was quite crude, it did have a considerable impact on China''s development plan. At this time, Ding Zhongli continued to add: "This time the Americans not only analyzed the situation within our territory, but also brought in two countries in the region, South Korea and Japan, saying that our actions of destroying the balance of water and soil can even affect the climate of neighboring countries...Japan and South Korea also Concerns were raised with us..." Hearing this, Chang Haonan wanted to laugh more than being angry: "It seems that I may have to fill in some more content in this report..." The report written by Zhang Liangping devoted a whole chapter to analyzing the impact that the entire sand transformation work may have on the international situation. But who would have thought that before handing it over, the other party would come up with something new. So at least that part definitely had to be reworked. Ding Zhongli also shook his head half annoyed and half helpless: "It is probably because the scale of our current operations is not large enough, and they are all on the edge of the original grassland and sandy land, so the Americans don''t know that what we are transforming is originally a sandy land..." "Even if they knew, they would still make a fuss..." Chang Haonan is very familiar with the other party''s virtues. At this time, Ding Zhongli took out another document from his briefcase: "I have already written a report to refute them. The content is about the three sandy lands we have designated. If they can all be transformed into normal farmland, it will reduce the production of tens of millions of tons of sand and dust every year... " Chang Haonan had no doubts about the opponent''s level. But just as he was about to nod, a new idea came to his mind. "I think...this report can be kept in hand for a while." He pointed at the report in the other person''s hand and said. "How to say?" "Now the opponent is asking questions, and we are passively explaining. If this continues, no matter how good we are, the opponent will continue to attack from different angles, and we will only be tired of parrying." Chang Haonan paused for a moment: "Why don''t you think differently, give up the unnecessary self-evidence complex, wait until the IPCC meeting, and attack the other party in turn?" (End of chapter) Chapter 1160 Optimization algorithms are also pure mathematics! Chapter 1160 The optimization algorithm is also pure mathematics! Although Chang Haonan did not explain more, Ding Zhongli, who has always advocated toughening the West on climate issues, is also experienced in fighting and immediately understood the former''s meaning. The so-called giving up on self-evidence does not mean that we do not explain the rumors at all and focus on throwing dirty water on each other. That way you will only be brought down to the same level as your opponent, and then be defeated by others with rich experience. It''s a state of mind. A mentality of jumping out of logical traps and not following other peoples routines When Americans accuse you of destroying the environment, they don''t really care whether you are environmentally friendly. But I want you to die. Therefore, you must show the ability and determination to "no matter what you are going to do, I will do the same." The only problem is time. Ding Zhongli frowned slightly and thought for a while: "The other side''s offensive is still focused on public opinion, so we are not particularly eager to respond...but there are less than three months left before the launch of the IPCC''s fourth round of assessments. If it is delayed until then, we may have some problems. passive." "Three months..." Chang Haonan estimated the timetable in his mind, and then his tone became firm: "Three months is enough!" In the other party''s slightly shocked eyes, he further explained: "I have contacted Professor Abella Lisser of the Lagrangian Center for Mathematics and Computation, a very authoritative scholar in the field of multi-objective optimization and neural networks. A paper we jointly completed should be published soon. "At that time, as long as we follow the steps we have planned before and conduct an inversion of the infrared satellite spectra in North America, many truths will be revealed..." Ding Zhongli is actually not too worried about the inversion process itself that Chang Haonan focused on. There''s almost certainly something wrong with Americans'' emissions data. It''s just that I can''t find direct evidence. What he paid more attention to was the first half of the sentence. "Is such a short time... really enough to appear in the magazine?" Ding Zhongli''s tone was somewhat worried. Although the popularity of online submission has effectively shortened the paper review cycle, for the same reason, almost every editorial department has experienced an exponential increase in the number of submissions. This has led to increasingly outrageous queue times for publishing papers. Even if the original bimonthly or quarterly magazine is changed to a single monthly publication, it will only slightly alleviate the situation of too much food and too little food. Some popular journals even have to wait six months after the acceptance is confirmed. However, Chang Haonan''s demeanor was quite relaxed: "Generally, it''s not enough." He answered very frankly: "But the two of us... we should be able to let the editor jump in, so it''s not a big problem." Ding Zhongli, who had been fighting internal and external enemies for more than ten years without breaking his defense, suddenly felt a little unstable. "I don''t need to ask about what I just said..." Chang Haonan''s confidence is not unreasonable. Professor Lieser''s research results greatly expanded the richness of the content of his paper. As an expert in the field of neural networks, he successfully applied the improved Levenberg-Marquardt algorithm to non-convex problems. Although subject to the limitations of the iterative method, its accuracy performance is not particularly ideal. But considering that neural networks have just started and are still in a promising future, any breakthrough is likely to be landmark. The only problem is that since this is the first time that Chang Haonan and Lieser have collaborated, and the time is quite tight, the structural arrangement of this paper has not been particularly carefully considered... Therefore, when the editorial department of Advances in Mathematics in Germany received the manuscript, I almost thought that some reckless person had filled in the wrong email link before sending it. "This paper is like a first draft written by a graduate student...it combines two parts of research that are barely related to each other..." Marcel Schmidt was holding a cup of freshly brewed coffee, dragging the mouse with his other hand to quickly flip down the page, and at the same time complained to his colleagues: "If my supervisor when I was studying at the University of Munich saw a paper in this format, he would definitely ask him to submit it to the magazine Current Affairs..." The editor sitting opposite him is a Spaniard, and it is obvious that he did not fully understand what the other person just said: "current events?" After thinking for a while, I still couldn''t find any mathematics journal with the same or similar name from my memory. This is an unusual situation for an editor of a professional mathematics journal. However, just when he felt ashamed because of his professional level, he heard Schmidt explain: "It''s a tabloid we have here. It usually publishes celebrity scandals and the like, and its sales are quite good..." Obviously, as a German, the latter has a sense of humor that is far beyond the reach of most of his compatriots. "puff-" Colleagues at several workstations around him laughed out loud. "Perhaps, as you said, a graduate student accidentally sent us the thesis that was supposed to be sent to his supervisor..." The Spanish colleague shrugged, and his tense expression relaxed. Schmidt had already finished the coffee in his cup, and was about to send a standard rejection email as usual, and then start the next stage of work: "The content is not in line with the requirements of our journal. About half of the space is about artificial neural networks..." As one of the "four major journals" in the field of mathematics, "Progress in Mathematics" has always been famous for its focus on pure mathematics. Although this principle has been loosened as the boundaries between theory and application have gradually blurred in recent years, it is still impossible for something from the symbolism school of neural networks to pass the editing test. While Schmidt was thinking this, he habitually pulled the editing page directly to the bottom. Then, he saw the signatures of the two authors of the paper. For a moment, Schmidt wished he could travel back to two minutes ago with his sewing box and sew up his big mouth The first author, Chang Haonan, Beijing University of Aeronautics and Astronautics Co-first author, Lagrange Center for Mathematics and Computation, Abella Lisser "hiss-" The joke in his mouth stopped abruptly, and his whole body adjusted to a state of sitting upright. Then, press Ctrl+home on the keyboard at the speed of light. Back to the top of the page! Others just thought he finished his coffee and started the next stage of work, and didn''t pay too much attention. Until the Spanish colleague just walked around and took a look behind Schmidt during a break in work. "Why are you still reading the article just now?" The latter''s face flashed with embarrassment for a moment. But submissions from such big bosses are usually distributed directly to the editor-in-chief. Perhaps it is because the number of recorded papers by Professor Chang in the past was so small that it accidentally fell into the hands of an ordinary editor like him. Absolutely amazing performance. Awkward? Embarrassment counts as a hammer! "Ahem" Schmidt cleared his throat and said with a very serious expression: "I think the optimization algorithm for nonlinear functions should also be considered pure mathematics..." This statement was like a landslide and immediately knocked the other party out of control: "What about... neural networks?" Schmidt blushed, veins popped out on his forehead, and argued: Why is the application of pure mathematics not pure mathematics? Looking at the troubled expressions of his colleagues around him, he also knew that his statement was a bit unreasonable. So I simply stopped talking and clicked submit on the webpage at the speed of light, then picked up a paper manuscript that I had just printed and rushed out of the office... In short, this article was sent to the journal editor-in-chief Jean Bosta Benaud. When Professor Benoy saw the title of the paper, a trace of doubt flashed in his eyes when he looked at Schmidt. But after all, the editor-in-chief has experienced many battles and is not as hasty as the latter. Instead, I turned to the end first and took a look at the author''s detailed information. Then, he couldn''t help but take a deep breath. "You''re right." He turned around and sat back in front of the computer, opening the editor''s backend page: "Although our journal mainly targets submissions in the field of pure mathematics, times are constantly changing after all, and the industry''s definition of pure mathematics is also constantly changing..." How could I say he is a leader? This level of language art is much more elegant than Schmidts stiff defense just now. "As for the review of this paper, you see..." The main reason why Schmidt came to see the editor-in-chief was because the reviewers he was familiar with were indeed not qualified enough to evaluate such a paper. And if you follow the normal editorial department submission process, it may waste a lot of time. "Don''t worry, I will contact Professor Jeffrey Hinton and Professor Stephen Boyd... One of them is the founder of modern neural networks, and the other is the most authoritative expert in the field of convex optimization..." Beno naturally knew what the other party was worried about: "I will also add your name..." Schmidt suddenly beamed. For an editor, being able to handle a high-impact article from a big boss is definitely an important highlight in his career. However, before he could express his gratitude, Beno continued: "Also, check the number of manuscripts received in the last two issues of our journal. If there are not too many, add a queue to this article and publish it as soon as possible after it passes the review..." (End of chapter) Chapter 1161 He changed the science of surveying Chapter 1161 He changed the science of surveying Marcel Schmidt would never have imagined that many years later, when artificial intelligence research even began to occupy the Nobel Prize and Fields Medal seats, he would blurt out "Neural networks are also mathematics" just to make excuses. He became popular and was regarded as Guigao by researchers in the field. Even Schmidt himself became one of the objects of worship in some rituals to appease the server machine soul. But these are all things for later. In any case, at this point in time in late 2004, "Progress in Mathematics" chose to publish a paper related to global optimization and data models, which was big news that could cause a slight earthquake in the industry. Fortunately, one of the authors of the paper is the winner of the last Fields Medal, and this is his first well-documented collaborative paper. Therefore, the focus of the industry quickly transitioned from the content of the article itself to the research direction that Chang Haonan is concerned about When a big boss publishes an article in a top journal, he or she can set the trend. Chasing hot topics, whether at home or abroad, is a feature that most researchers have to taste... Delft University of Technology, Netherlands. Professor Joseph Blatt was standing in front of a white light interferometer, looking through a series of test results displayed on the computer screen with a complicated expression. Not far away, his student Qin Shaofeng was immersed in checking a test report that had just been spit out by the device in front of him. "Professor, the results have been compared..." A few minutes later, Qin Shaofeng took off his glasses and put them aside, and spoke with a somewhat disappointed tone. However, before he could say what was to follow, Brat interrupted him in advance: "It shouldn''t match the first two tests?" Qin Shaofeng, who was directly guessed the result, was stunned for a moment, then nodded: "The same sample being tested, the same three-dimensional measuring instrument, but the difference between the peak and valley values ??in the three tests was more than 1 m, and the root mean square was about 0.3 m, which completely failed to meet Party A''s requirements..." As an institution of higher learning located in a small low-lying country and in a city that is not well-known, Delft University of Technology is not only far less famous than behemoths such as Harvard, Massachusetts, and Oxford, but is far less famous than the University of Amsterdam next door. Far worse. However, it has considerable strength in optics and optical engineering. And Joseph Blatt is one of the most outstanding scholars in this field. He worked for Philips and ASML in the 1970s and 1980s, and moved to academia in 1988. He then continued to make a series of outstanding contributions in the fields of optical imaging and optical storage technology. and is one of the founders and current president of the European Optical Society. The project he is currently following up on is to develop a new non-contact three-coordinate measuring technology commissioned by Taylor Hobson to inspect the production of aspherical lenses with a peak-to-valley (PV) value better than 0.1m. . This accuracy is not exaggerated for contact measurement technology based on atomic force analysis, but because the probe needs to be in contact with the surface of the workpiece, it is not suitable for some particularly fragile optical components. In contrast, non-contact measurement using interference methods and geometric ray methods is obviously much friendlier. Of course, it is much more difficult to achieve the same accuracy as contact measurement. Facing this failure that he couldn''t remember for the past few months, Qin Shaofeng had realized that there was no point in continuing repeated experiments. What we need now is to change our thinking: "Should we consider recalibrating the public observation points of the equipment, so that the position offset error may be reduced?" He suggested first. The errors in the surface detection process mainly come from three aspects: motion axis error, probe error and position offset error. There is not much difference between the first two methods between the contact method and the non-contact method. Therefore, the accuracy problem of the non-contact method mainly occurs in the position offset error - Since there is no probe that can directly contact the surface and directly determine the reference origin of measurement, the error data captured by the non-contact device is essentially equivalent to the superposition of surface error and position offset error. Only by separating the latter through algorithms can relatively accurate results be obtained. So Qin Shaofeng''s idea is actually correct. But the method of recalibrating the observation point... It''s basically equivalent to "try restarting" after a computer failure. It was an attempt with a bit of metaphysics after I really couldn''t find the specific reason. Although sometimes it does work wonders, for researchers majoring in optical engineering, it is a bit unsightly. Therefore, Blatter rejected it almost immediately: "It doesn''t mean much." He waved his hand, and then directly began to analyze the reasons for the error for Qin Shaofeng: "The current calibration logic of this equipment is based on the two-dimensional aspheric model. Although some corrections have been made using the Gauss-Newton method, in essence, the measured center of the aspheric surface is still not the center of the actual surface, and the two-dimensional The model curve obtained after transformation is not an aspheric meridian, so just resetting the observation points will not be effective..." Being able to give such a specific explanation before seeing the experimental report made the latter couldn''t help but sigh, after all, **** is still hotter. But this emotion lasted less than two seconds. I heard Brat pause for a moment, and then continued: "And more importantly, I tried it last night and it didn''t work..." The filter instantly shattered. Of course, work still has to go on. After some thinking, Qin Shaofeng thought of a new way: "Then if we upgrade this equipment to a control computer with better performance, can we skip the two-dimensional model calculation step and directly use the three-dimensional correction algorithm to obtain the coordinates of the circle center and aspheric surface in the space?" This time, it was not directly rejected. "The problem with the three-dimensional correction algorithm is that it is prone to local convergence... resulting in outliers with particularly outrageous errors, which is very difficult to accept in industrial production..." Blatter has obviously been thinking about this for a long time: "Actually, if we can overcome the local convergence problem, we only need to generate three-dimensional aspheric data with position errors and surface shape errors through simulation, and then compare the generated coordinate points with the standard aspheric equations to obtain each The error of the coordinate point, and finally using the principle of minimum root mean square error, the corresponding position error can be iteratively optimized..." In fact, aspheric surfaces do not mean that they are irregular. Its standard equation is generally a quadratic surface superimposed with higher-order term coefficients. In three-dimensional space, only rotation and translation exist, and there is no need to consider rotation along the z-axis, that is, there are only 6 The change of degrees of freedom, as for the position parameters, can be expressed by two third-order matrices containing second-order partial derivatives and three error terms. Therefore, the final problem can be summarized as: using a reasonable global optimization algorithm to optimize the objective function to minimize the error function value. And Qin Shaofeng''s foundation is indeed solid. After listening to his mentor''s ideas, he quickly captured some new ideas. However, it is still vague: "So it was said before that the two-dimensional model still fails to achieve results after optimization, because the Gauss-Newton method is not positive definite in the process of solving the optimal solution?" "Not quite." Bratt shrugged helplessly: "In fact, someone in Japan has already used the Levenberg-Marquardt method, which is positive definite in solving the Hessian matrix, for three-dimensional measurement, but the effect still does not meet the expected value." Levenberg-Marquardt method This term finally allowed Qin Shaofeng to completely grasp the flash of inspiration, and his whole body became energetic instantly: "I heard it from a classmate majoring in mathematics two days ago. It seems that a very well-known scholar has just published a paper related to this algorithm, which is to improve the local false optimal problem... and because the content is similar to pure mathematics It was a bit out of touch, so it caused some controversy on their side..." Bratt himself actually has some mathematical skills, but he is indeed not comparable to serious mathematicians. But it was enough for him to realize the value of this paper in the field of optics. "If you have more detailed information, I would like to take a look at this paper." he asked almost glaringly. "I have a link to the paper''s web page..." Qin Shaofeng said, taking off his gloves and turning around to go to the office to get his computer. However, Brat couldn''t wait any longer and immediately pointed to his computer next to him: "Maybe you can just use this..." A few minutes later, a paper with a thickness of about twenty pages was handed into Blatt''s hands. "For a mathematics paper, it is indeed a bit too long." He took it half-jokingly. Qin Shaofeng''s answer was quite serious: "My classmate said that if you are only interested in the Levenberg-Marquardt method itself, you only need to read the first half..." "knew" Brat didn''t even raise his head, but just waved his hand towards Qin Shaofeng, indicating that the latter could go to rest first. However, Qin Shaofeng, who breathed a sigh of relief, had just returned to his seat in the office when the phone next to him suddenly rang. "Qin, go and contact Taylor Hobson Company for me." "I just said that I have a new technical solution...but some specific details have not been figured out yet. I may need to have a meeting with them to discuss it..." (End of chapter) Chapter 1162 Americans consume too much beef, which is a major contributor to climate change Chapter 1162 Americans consume too much beef, which is an important cause of climate change... Chang Haonan was not aware of the far-reaching impact of his paper at this time. Because in the field of engineering, even the simplest and most straightforward uses require testing and verification, ranging from weeks to years. And it is difficult for influence to spread beyond this field. Therefore, if you want to make enough noise before the IPCC meeting, the focus should be on the second half of this paper. That is the part related to artificial neural networks. As we all know, if research in the computer field really wants speed, the development cycle and publication cycle can be extremely short. The reason why websites that pre-publish papers like arXiv can survive and continue to grow is largely because the research iteration speed of these people is even faster than the review speed of regular paper journals. If you follow the traditional process, it is likely that there will be a lot of disputes about originality. The article by Chang Haonan and Lissel just provided a huge space for water papers to the majority of computer scientists who were engaged in emo during the Internet bubble. Therefore, all major universities rushed to follow up. Higher-level scholars began to think about how to use similar ideas to expand new fields, while average-level researchers began to fill in the gaps. In short, regardless of the specific contribution to the development of the industry, at least in terms of the number and popularity of papers, it is not weaker than some established research fields. It is impossible for anyone to deny the correctness of this improved Levenberg-Marquardt method itself. And this has already achieved Chang Haonan''s original goal... In December 2004, the fourth IPCC assessment was officially launched. In fact, in principle, the IPCC is closer to an academic conference between countries. It does not conduct any scientific research itself. Like an academic journal, it is not responsible for any adopted data itself, and only focuses on scientific evaluation methods, and in Analysis and suggestions are given under the premise of "assuming the data is true". This is of course due to technical feasibility considerations. After all, the United Nations is not a real authority, and it is impossible to go to other people''s countries and conduct random investigations. But it also shows that the conclusions given by the IPCC are not necessarily reliable. But because it is backed by two platforms, the World Meteorological Organization and the United Nations Environment Program, and everyone still has to eat from the same horse spoon, they still tend to agree with its authority. But when it comes to the evaluation process, the scene is actually not much different from a quarrel in the vegetable market. And this year, due to a well-known reason, there was more of a smell of gunpowder from the beginning. Since the number of countries participating in the IPCC assessment is not large, they can only learn from but cannot copy the order of speeches at the UN General Assembly. Therefore, in the past, just the matter of who came first and who came last was enough to discuss for a period of time. But this time, when the U.S. representative proposed alphabetical ordering by country, no one raised any objection. Even the Russian representative did not make any statement such as "The initials of your United States is clearly U." Because under this arrangement, the United States will be next to China. And everyone wants to see what kind of colorful sparks the two sides will ignite... As a rule, Brazil is the first to speak, regardless of the order. As representatives of South American countries, their core focus is naturally on the changes in tropical rainforests. "In the past five years, due to extreme climate, deforestation, and natural disasters, the area of ??the Amazon rainforest has shrunk by approximately 13,000 square kilometers... I would like to remind everyone that the Amazon rainforest occupies half of the world''s rainforest area. , and one-fifth of the world''s total forest area, with irreplaceable ecological and climate value..." "Previously, according to meteorological research, in 2005 and 2006, the American continent will suffer from a severe drought that has not been seen in a century. The entire region is already on the edge of desertification. Once the critical point is exceeded, the rainforest will irreversibly begin to die, and then the It will have a catastrophic impact on the global climate and even destroy the entire world..." The Brazilian representative started off with an obviously alarmist content. Its okay to deceive the brainless so-called climate activists with these arguments, but whoever is here who is not a thousand-year-old fox cannot be deceived by these rhetorics that have long been used to hearing them. The Amazon rainforest is indeed very important, but few people have mentioned that while the forest area is decreasing, it will also expand spontaneously. The annual net area reduction cannot reach the equilibrium critical point at all. As few people have mentioned, while "one species is destroyed on average every hour", new species are also appearing at about the same rate. What everyone really cares about is whether there is any hidden purpose behind this passage... "Let me tell you, Lao Ding, their statement clearly relied on the disaster data released by the US Environmental Protection Agency some time ago... Could it be that they want to cooperate with Lao Ding and target us?" Zheng Guogang, deputy director of the China Meteorological Administration who was accompanying him, approached Ding Zhongli''s ear and asked in a low voice. The latter lowered his head and thought for a moment, but still shook his head: "Judging from past experience, most third world countries are on the same front as us in the IPCC, but South America is greatly influenced by the United States after all, and the representatives speaking on the stage may not really represent Brazil. People themselves, so I really cant say However, just when people here were already a little worried, the Brazilian guy on the stage suddenly changed the subject: "The Amazon rainforest is a precious asset to all mankind, and rainforest protection is by no means a task for South American countries alone, but should be a joint responsibility of the international community..." At this moment, everyone in the Chinese delegation breathed a sigh of relief The other party obviously did not have any political purpose, but simply used this as an excuse to ask for money. Sure enough, the Brazilian representative quickly came up with the idea, hoping that the World Bank and developed countries could provide the country with corresponding quotas of environmental protection funds based on the proportion of tropical rainforest area... Although this routine seems a bit crude, in the context of environmental protection, it is really impossible to be completely rejected. After all, asking for money is already quite simple in the IPCC. And some countries hope to use the banner of environmental protection to achieve even more unspeakable goals... Just like the American representative who came to power later. Just as everyone expected from the beginning. After reviewing the global climate change data of the past five years as usual, he directly pointed the finger at China based on the speech made by the Brazilian representative: "In the past five years, behind China''s rapid economic development are rapidly deteriorating environmental problems. Calculated in terms of total pollutant emissions, China has become the world''s largest polluter..." "We have noticed that in order to further improve its economic growth data on paper, China has begun to develop the grassland area in the northeastern part of its territory. This will likely lead to severe soil erosion and desertification, and will have a huge impact on the global climate balance. In addition to the damage caused to the Amazon rainforest, here are satellite photos taken last year and this year. It can be clearly seen that the total area of ??vegetation has been significantly reduced..." "China is the worst in terms of the bad results caused by its destruction of the environment. Countries around the world should work together to stop such destructive behavior..." The U.S. representative clearly had a premeditated plan. Not only did he present quite detailed survey data, but he also spent almost one-third of his speech criticizing China''s development behavior in eastern Mongolia. His intentions were obvious. In the past, the Chinese delegation''s strategy was basically to defend and refute the accusations made by the other party point by point. Although it is organized, no matter how reasonable your explanation is, you will always be at a disadvantage in terms of momentum. But this time, Zheng Guogang, who was about to speak, showed no psychological fluctuations. I even wanted to laugh a little bit. After the American representative left, he strode onto the stage almost impatiently. Of course, as a decent person, it is impossible to start with a scolding attitude. Instead, like the previous two, I first reported on the basic environment and climate conditions of the country and Northeast Asia. After completing all the routine content, he slowly turned around and faced the US delegation who still didn''t know what was about to happen. Here, I would like to remind everyone that our countrys development in eastern Mongolia Province is itself part of a large environmental protection plan. These are aerial photos of the same place and location before and after development, which are much more detailed than satellite images. , it is enough to see that these lands were already in a state of desertification, but it is our development behavior that has improved the overall vegetation level..." The previous part seems to be no different from the previous explanation. But immediately after, Zheng Guogang suddenly changed his tone: "On the contrary, we have sufficient evidence to prove that a large part of the causes of climate change and natural disasters just mentioned by the Brazilian representative are that Americans consume too much beef..." (End of chapter) Chapter 1163 A turn of attack! Chapter 1163 A turn of attack! Although the IPCC is not a very serious occasion, Zheng Guogang''s sudden statement does sound a bit violent. So much so that the first reaction of most of the audience, even the American delegation, was to laugh out loud. It''s not a mockery. I just subconsciously felt that this Chinese person wanted to liven up the atmosphere and cool down the room that was already filled with the smell of gunpowder. However, some more astute people have already noticed that the expression and tone of the Chinese representative are serious and do not look like they are joking at all. I''m afraid he''s holding back some big moves. In such a strange atmosphere, Zheng Guogang showed no panic at all. It wasn''t until the laughter gradually subsided that he continued to speak. "As we all know, carbon dioxide is not the only culprit responsible for the greenhouse effect and climate change. It is only because its emissions are high compared to other greenhouse gases that it has received the most attention." "However, according to our detailed calculations and reviews in recent years, the United States has emitted a staggering more than 500 million tons of methane in the past five years!" At this point, Zheng Guogang deliberately paused for a moment in order to impress the audience below. But he didn''t stop for too long. Before most people could understand the concept of 1 billion tons of methane, he explained: "Although this amount is only about a quarter of the carbon dioxide emissions of the United States, considering that the GWP value of methane is more than twenty times that of the latter, the contribution of these 500 million tons of methane to the greenhouse effect is almost as much as that of carbon dioxide Five times that, or to put it another way, its equivalent to the total carbon dioxide emitted by the world in one year! Gradually. The American delegation couldnt laugh anymore. This is no way to enliven the atmosphere. This is to dig out our roots! But Zheng Guogang''s attack did not stop, but became more fierce: At this point, he didn''t care about the reactions of the audience, and just took out two forms from the folder in front of him. One of them is a line chart. Because the distance is too far, even through the picture captured by the camera, it is difficult to see clearly what is on it. But the second picture can be seen at a glance. It is a schematic diagram of the emission concentration of the entire North American continent: "Moreover, compared with carbon dioxide that can be absorbed and converted by biological means, methane stays in the atmosphere for a longer period of time. If calculated on a 100-year cycle, its average GWP value will be more than 80 times that of carbon dioxide, which is very important for the earth''s ecology. The damage to balance and the future development of mankind is even more incalculable! After calculating the emission sources, we found that areas with excessive methane concentration emissions in the United States are highly coincident with areas where the breeding industry is concentrated, because cattle and sheep and other artiodactyl animals that are kept in captivity rather than free-range will suffer from nutritional deficiencies. Metabolic imbalance produces large amounts of methane gas during digestion..." In addition to damaging the climate, excessive methane emissions will also form accumulated methane clouds over nearby areas. The extremely severe natural disasters and extreme weather in the American continent in recent years are also related to this. The United States must take action for this. Take responsibility "As for the specific analysis process, we have released a complete report, you can check it yourself..." Zheng Guogang was so happy with his speech - Although he has just assumed the post of deputy director of the Meteorological Bureau, this is not the first time that the IPCC and the United Nations have held meetings on environment and climate. In the past, we could only defend ourselves unilaterally and passively, and we were faced with baseless rumors and slander. It was impossible not to feel aggrieved. Now that I finally have the opportunity to point fingers at others from the moral high ground, I naturally want to clear away the long-standing depression in my heart. Just point your nose and scold Americans as the cancer cells of the earth. Faced with this through-ball attack, the U.S. delegation''s first reaction was quite confusing. Most people didn''t even react until Zheng Guogang finished speaking. Obviously, they didn''t even think that they would be criticized by others one day. As for rebuttal...it''s impossible to talk about it. It''s like going on stage for your graduation defense without any preparation in advance. Naturally, you can only obey the judges'' questions. However, you can just answer without defending, as long as you land safely. If the Americans don''t say something this time, they will make a big joke. The Brazilian representative who was the first to take the stage was dumbfounded I just came here to ask for money as usual, why did I suddenly become the center of the storm? The Amazon rainforest is dying. I''m just saying it casually, but I can''t take it seriously! Stay away, don''t spill blood on me.jpg In short, after Zheng Guogang finished speaking, for about half a minute, no one in the entire conference hall publicly expressed their opinions, only some unintelligible whispers... Fortunately, after the initial chaos, the American delegation quickly organized a counterattack: "We object! This is an unfounded accusation!" The American representative who had just taken the stage roared angrily. In fact, logically speaking, there will be a concentrated question and discussion session after the speech session. But as mentioned before, there is really not much difference between a meeting of an organization like the IPCC and a wet market. Especially now everyone wants to see how the United States and China will fight, so the host just stopped it a little out of responsibility. , and after seeing that it didnt work, he followed suit. Zheng Guogang could actually continue speaking regardless of the objections from below, but the methane emission issue itself was digging a hole for the Americans, so he simply stopped and motioned for the other party to speak first. "One billion tons of methane is simply unrealistic!" The voice of the American representative continued to echo in the conference room: "Let''s not talk about the terrible greenhouse effect that methane of this magnitude can cause... If it is true as the Chinese representative pointed out, then as long as a match is struck in the air, it may cause a fire over the United States..." "In addition, as far as we know, China has not launched any satellite with methane detection function so far, nor has it opened its airspace to any country for meteorological detection research. So, please ask the representatives of China, how did you obtain the report? How can we prove its reliability? It should be said that this angle of entry is reasonable and well-founded - Although the principle of fermentation to generate methane during the digestion process of artiodactyls is correct. But 1 billion tons, and its still a point emission? If you really put pen to paper and do the math, you will know that the numbers are indeed just talking in your sleep. This is almost equivalent to having natural gas wells all over the United States, spewing natural gas into the air anytime and anywhere. If there really are that many, wouldn''t it be good to collect them and sell them for money? Even if it can''t be collected, it should be burned through an air bleed pipe like in the oil field. Therefore, after this rhetorical question, the momentum at the scene seemed to shift toward the United States again. However, Zheng Guogang still looked as normal, and he even didn''t forget to drink some water to moisten his throat. Apparently he came prepared: "It would be weird if that was the case..." He deliberately used an exaggerated tone, and at the same time picked up two other pages of paper in front of him: "It is true that our country has not launched a methane detection satellite, but all the analyzes we conducted in the report are based on data released by the U.S. Environmental Protection Agency. For example, the methane concentration over North America is based on carbon dioxide with a known concentration. The reference object is obtained by inverting the concentration of the common absorption band between it and methane in the infrared spectrum. "In addition to North America, we also used the same method to invert methane concentrations in East Asia, West Asia, Western Europe and North Africa. The results were within 15% of the measured values ??or estimated values ??in these regions themselves, which is enough to prove this algorithm. Effectiveness in itself "Of course, these documents are also made public on the websites of relevant departments of our country, and you can check them by yourself..." Having said this, Zheng Guogang raised his head again and stared sharply in the direction of the American delegation: "If this calculation method shows such a huge deviation only in North America, it can only mean that... there are serious problems with the original pollutant emission data released by the United States!" ! ! In an instant, the whole place was in an uproar. Even some national representatives who had no interest in this type of oral gymnastics became energetic now. Although everyone has more or less suspected that the data released by the United States is inaccurate, this is the first time that the Chinese people have brought the matter to the table. More importantly, evidence was produced. The attention of all the audience turned to the representatives'' seats again, ready to hear what kind of rhetoric the United States would come up with to refute... (End of chapter) Chapter 1164 Not only do you have to do the questions, but you also have to ask the questions Chapter 1164 Not only do you have to do the questions, but you also have to ask questions Faced with such a sudden turn of events, the American representative, who had been very confident just now, was shocked on the spot. In fact, about ten minutes ago, he had doubted whether the Chinese people still had any backup plans. After all, the statement that one billion tons of methane is emitted is too outrageous. Even if it is nonsense, it should be a relatively realistic number. But after all, there was no preparation in advance, and they could only launch a counterattack against the only obvious loophole left by the Chinese. In the end, I never expected that this seemingly loophole turned out to be a dead end. Now he will either admit that there is a problem with the point he just refuted for the first time, or admit that there is a problem with the carbon dioxide emission data he released... The dilemma is yes. "Cunning Chinese!" His anger was burning in his heart, but he still had to maintain a polite attitude on the surface - The most basic logic of things like fighting is that whoever breaks the defense first loses. Looking at the U.S. representative with a gloomy expression in front of him, Zheng Guogang felt as if he was at ease! The enemy must be surrounded by enemies. This is the wisdom left by our ancestors. Learn, child! He picked up the cup, took a leisurely sip of water, and then lowered his head to sort out the speech in his hand. There is about 30% more content in the back, half of which are plans to deal with various situations, but there is no rush to continue firing. Today''s meeting only represents the official launch of the fourth evaluation. There will be no results in the first place, so even if it is a big quarrel, it is just oral gymnastics. What really matters is the last 15%. That is China''s brand-new initiative to deal with climate issues. Finally, after Zheng Guogang deliberately delayed for about a minute, the United States finally came up with a new rhetoric: "The algorithm used by China to invert methane concentration using the signal strength of infrared spectrum and carbon dioxide as a reference has not been fully verified, let alone a methane concentration measurement method recognized by the IPCC and my country Environmental Protection Agency. Therefore, We cannot agree on the reliability of any data and conclusions related to it..." Before these words were finished, the whole conference hall was already filled with happy air. This time, it was ruthless ridicule Although the vast majority of people have not read the report published by China in detail, it is even less likely that they know what this "improved Levenberg-Marquardt method" is. But since the Chinese people dare to openly disclose the entire calculation and analysis process, it shows that there is a high probability that there is no fatal error. Otherwise, why wouldnt the United States dare to show everyone the raw satellite data related to carbon dioxide remote sensing? As for the disagreement with the reliability of the data and conclusions among the American population In the opinion of the veterans at the venue, unless you can give a reason for disagreeing, this statement is closer to wallowing than an argument. The nature is similar to the "rebound" or "I''ll tell the teacher" after a primary school student failed in an argument. Incompetence and rage belong to yes. Of course, the American delegation also knew that such a counterattack was feeble, but for a while they couldn''t think of any better way, so they could only try to save face and pretend that nothing happened. Anyway, counting the time, its almost time for China. Besides, they have already taken the no-fight card, so the other party can''t possibly talk about stand-up comedy, right? Don''t tell me, it''s really possible. Zheng Guogang is not happy enough at the moment, but he doesn''t care about you. Keep firing: "In fact, as the US representative said, the annual emission of 1 billion tons of methane is indeed beyond common sense. Therefore, we tried to reverse the entire inversion process, that is, using the methane content in the atmosphere announced by the US as a reference , to calculate the total amount of carbon dioxide emitted, then we will get a number that is more realistic. In order to express emphasis, when he said this, he deliberately slowed down his speaking speed: "According to our calculations, the United States emitted a total of approximately 9.5 billion tons of carbon dioxide in 2003, instead of the 6.94 billion tons they announced, accounting for more than 35% of the world''s total emissions last year..." At this moment, the American delegation was not the only one who couldn''t laugh. The figure of 1 billion tons of methane just now, any reasonable person will know that it is false as long as they do a little analysis. But these 9.5 billion tons of carbon dioxide dont sound outrageous at all. On the other hand, in fact, everyone originally expected Americans to conceal their numbers. But no one thought that these bosses could hide so much... You know, although everyone has their own pet peeves when it comes to reducing emissions, for most countries, especially those in Europe and the Americas, the consequences of climate warming are still real. This extra 3 billion tons per year, according to the Framework Convention on Climate Change, must be calculated into the carbon debt of all mankind. At that time, it will undoubtedly further increase the burden on the already arduous task of reducing emissions. In this case, Zheng Guogang then added fuel to the fire: "This number is equivalent to the average emission of 30.8 tons of carbon dioxide per American, even more than Saudi Arabia, which currently ranks first in the public list, and 6.3 times the world average..." "In fact, this summer alone, the Taylor Forest Fire in Alaska released a total of about 50 million tons of carbon dioxide from one emission source, which is equivalent to the total net absorption of carbon dioxide by this forest in the past half century..." Looking at the American and European representatives whose faces were getting darker and darker, Zheng Guogang knew that the heat was almost there. In the final analysis, whether in Europe or the United States, at least for now, everyone still cooperates more than fights. It''s impossible to really kill the situation completely. Therefore, he changed the topic appropriately and his tone softened: "The reason why we say this is not to really accuse anyone, but to refute the groundless accusations made by the United States." "The reason why our country is sitting at the IPCC meeting is to solve the climate problem, not to cause trouble..." After several consecutive rounds of full-scale output that knocked out the opponent, Zheng Guogang used two sentences to seize the moral high ground, and then continued: "So I''m here to make an initiative." The impact of human activities on earths climate change has only become apparent after the Industrial Revolution. Therefore, when we discuss the emission reduction responsibilities of various countries, we should not only consider the current situation or the situation in the past ten or twenty years, but should Counting from the mid-eighteenth century. Some countries have enjoyed sufficient development dividends in advance and have caused damage to the environment. For the sake of fairness, these countries themselves should bear this part of the responsibility. Only after detailed calculation of these historical issues, the remaining emission reduction responsibilities will be determined. It should be distributed by countries around the world. "At the same time, out of humanitarian principles and the most basic human rights considerations, people in all countries should have equal emission rights regardless of race, color, or gender. That is, the carbon emission caps that each country should receive should be determined based on population size... On this basis, China, as a responsible big country, voluntarily reduces emissions by an additional 10% on this basis to set an example to other countries around the world..." This series of suggestions is the core strategy of the Chinese delegation this time. In the past, others have always set the questions and we have done the questions. And now, its our turn to set the questions for others to do... (End of chapter) Chapter 1165 Turn passivity into initiative Chapter 1165 Turning passivity into initiative In fact, these suggestions made by Zheng Guogang are not the first time that China has made them. As early as the signing of the Kyoto Protocol, similar statements had appeared many times. But this is the first time that a complete emission reduction plan has been systematically put on the table for discussion by China. And this is not in line with China''s low-key style in the past ten years. Therefore, many members of delegations from other countries did not even react immediately. Most of them are still immersed in the passionate battle between China and the United States. But that didn''t last long. Soon, someone figured out something was wrong Determine emission limits based on population? Or was it proposed by China? Not only that, but also the historical emissions data accumulated since the Industrial Revolution must be removed first? Well, you have 1.3 billion people, and industrialization has happened in the last 50 years, so of course you are happy. An additional 10% reduction in emissions sounds better in words than in words, but in real terms it still stands out by a long way. Do other countries still have to live together? After all, the United States has a population of more than 300 million, but the problem is still second. Countries in Europe that industrialized early and now have small populations, such as the three Low Countries and the Nordic countries, wouldn''t their emission limits become negative based on this method? You should know that although the emission reduction part of the Kyoto Protocol is not mandatory, it sets out a very key content, which is the carbon emissions trading system. The next stage of the plan for various countries, of course mainly developed countries, is to combine carbon emission limits with the carbon trading market. In this way, we only need to transfer low-end industries with relatively large emissions to developing countries, and then earn back the money spent through carbon emissions trading, which can permanently lock the development ceiling of these third world countries. But now that China is so involved... How to have fun? Let alone selling carbon emission rights to others, I am afraid that the whole world will have to look to India and Bangladesh and other countries with huge population bases but not very high industrial output to buy carbon emission rights. But if you want to refute the Chinese... On the one hand, other people''s statements are well-founded, and they have proactively made a promise to give in 10%. In addition, with the power of the American representative who just defeated him, no one is willing to be the first to get into trouble. On the other hand, although everyone is a dirty bunch in private, at the beginning of the 21st century, at least on the surface they still maintain a decent personality. Protecting developing countries is almost as politically correct as protecting the environment. In the past, developed countries usually bribed representatives from a few small countries to do this kind of work of tearing apart X, and they only acted as the controller behind the scenes. Until the result is almost decided, he will end up as a controversial terminator. They say, "Let me say a few words of justice," but in fact they are not fair at all. But this time, most countries only guessed that China would confront the United States, but no one expected that the former would take this opportunity to put forward such a constructive opinion... Naturally, I was not prepared. As a result, the scene froze in place for a while. The representatives looked at me, and I looked at you, and finally almost unanimously turned their attention to the French and German representatives present - There is no doubt that according to the calculation method proposed by Cai Xia just now, the most disadvantaged countries must be a number of small developed European countries. In the discussion of climate issues after entering the 21st century, the EU as a whole is taken into consideration. But as we all know, the typical EU official combines Italian organization, German flexibility, French humility, Belgian imagination, Dutch generosity and Irish intelligence. In other words, nothing can be accomplished. Therefore, in 2004, some European countries will still send separate representatives to participate in the conference. For example, Germany and France are the engines of Europe. And considering that China has become very close to Europe in recent years, letting them put forward opinions will not make the atmosphere too tense. However, the German and French delegations directly carried forward the ostrich spirit and pretended that nothing happened. Because they dont actually want to refute. As just mentioned, the EU acts as a whole when calculating carbon emission rights and conducting carbon trading internationally. But if we break it down, we still need to set an internal limit for each country. Therefore, Germany and France can instead use the plan proposed by China as a bargaining chip to strengthen their voice within the EU framework. As for the issue of carbon emissions First of all, no one thinks that Chinas plan can be passed as it is. Even though China seems to have the upper hand now, formal negotiations for a truly mandatory emissions treaty will not begin until around 2007. Finally there is the voting process. No matter how bad it looks, it will be impossible for the countries with vested interests to approve such a document with outrageous contents. There will always be compromises. Secondly, even if it is passed, the EU can expand its population by absorbing a number of Central and Eastern European countries, and then transfer the carbon emission credits of these countries to Western Europe through the EU accession agreement. I''m really not in a hurry. Just when the host couldn''t stand it anymore and was about to forcefully end China''s long speech, the Russian Federation delegation, which had not been noticed until now, spoke unexpectedly. "We believe that although the suggestions put forward by the Chinese representatives are very constructive, there are still several serious loopholes." The host who just touched the microphone sat back down instantly. No one expected that it was the Russians, who seemed to be on the same side with China, who were the first to question it. But soon, they realized something was wrong... First of all, the cost of basic survival for some countries located in the cold zone is higher than that of tropical and subtropical countries. Therefore, this should be taken into account. According to the territorial area of ??each country in high latitudes or the average annual temperature, the cost of maintaining basic survival is higher. The state will compensate. Secondly, when a country produces carbon dioxide, its domestic resources such as forests and grasslands will also absorb and store carbon dioxide. However, the current method of calculating carbon emissions based on satellite remote sensing cannot involve this part. Therefore, it should be calculated in the net This additional part is subtracted from the emissions..." Obviously, this series of proposals is not so much questioning as it is checking for deficiencies. And it''s even more outrageous. You Russians have 8.2 million square kilometers of forest and 3 million square kilometers of northern boreal land, which together are larger than the total land area of ??Canada. Do you want some more face? Fortunately, after the first initiative, other countries have also expressed their attitudes. For example, the representative of the United States who had been pretending to be dead just now stood up and said that compared with land, the ocean itself and aquatic plants have a more obvious effect on absorbing carbon dioxide, so the area of ??territorial waters and exclusive economic zones should also be taken into consideration. Representatives of the GCC countries believe that considering that fossil fuels are still the basis for the survival and development of all mankind, it should be considered that countries that produce fossil fuels, especially oil and natural gas, are shouldering the responsibility for carbon emissions for all mankind and need to There are exemptions based on fossil fuel production or export volumes when calculating emissions limits. There are also some countries that really want to reach a consensus and believe that neither the head count nor the area is reasonable. Instead, the total amount generated per unit of GDP should be calculated... In short, this time, the entire conference hall has almost become a vegetable market. Even when the Chinese representative stepped down from the stage, not many people noticed. Zheng Guogang, who returned to his seat, shook hands with Ding Zhongli excitedly... After a successful counterattack, we proposed our country''s motion on climate issues while the iron was hot. This part was not part of the original plan. It was proposed by the latter before departure. In this timeline, because many things have not happened, China is not very weak in terms of momentum. Therefore, the superior leaders finally approved this somewhat tit-for-tat suggestion. This was the sudden attack just now. Like all other representatives, Ding Zhongli and Zheng Guogang did not expect the proposal itself to be passed from the beginning. However, being able to speak out not only on behalf of oneself but also on behalf of the majority of third world countries despite being suppressed in the past is a great attempt in itself. Not to mention, China also successfully guided the direction of the entire discussion, completely turning passivity into initiative, and made a pretty good comeback. "It really was a success..." Ding Zhong tried his best to lower his voice. But he couldn''t suppress the excitement in his voice... (End of chapter) Chapter 1166 To reply, only to reply but not to defend Chapter 1166: Reply, only answer but no defense At the same time that Zheng Guogang was quarreling with the Confucian scholars. The other side of the world. The conference hall located in the No. 1 Teaching Building on the Yuquan Campus of Zhejiang University is a busy scene just like before the war. Zhou Shuwan, in a suit and tie, sat at the head of the long conference table, looking with emotion at a dozen colleagues and students gathered around one person, confirming various details about papers and PPTs. Just like returning to the scene where he defended his PhD two years ago - In fact, during his master''s degree, Zhou Shuwan and his mentor have continuously participated in the imitation and improvement of the HTY8 ejection seat and the research and development of the HTY5 ejection seat. After successfully blogging in 2000, he was very lucky to ride on the rapid development of China''s aviation industry. In just three years, the two main fighter jets, the J-11B and J-10A, completed high-intensity test flights that lasted as long as the past ten years combined, and were successfully finalized and fielded. This process also provides a large amount of real data for the study of ejection seats and pilot ergonomics. In the end, both seat models were finalized one step ahead of the aircraft before the end of 2002. As a result, Zhou Shuwan was able to obtain a doctorate in only two years and enter the 610 Institute of China Aviation Industry Group, which is the Aviation Lifesaving Research Institute. In actual work, he spends most of his time at the Haofei Group, responsible for seat adaptation work for a new generation of medium bombers currently under development. As for why he appeared at Zhejiang University... it was largely a coincidence. Shortly after Zhou Shuwan officially started working, in response to the countrys call to cultivate world-class high-level engineers, Zhejiang University first piloted the excellent engineer training program into postgraduate training. That is to say, graduate tutors and front-line engineers from enterprises serve as tutors to cultivate talents who can solve practical production problems immediately after graduation. At that time, Zhejiang University happened to be cooperating with Haofei Group to conduct research and development of digital measurement and orbital movement technology. In short, Zhou Shuwan entered Professor Li Xiongjiangs research group as an engineer. And today happens to be the graduation day for the first student he contacted. Zhou Shuwan also made full use of his contacts and directly invited Chang Hao to participate in the defense. This is certainly a commendable thing for the entire research team. Professor Li Xiongjiang posted the defense poster in the most eye-catching location outside the teaching building half a month in advance. But for graduate students who are just one step away from graduation, the appearance of such a big shot on the defense committee is really not good news. After all, under normal circumstances, considering the instructor''s personal dignity, as long as the thesis itself has been reviewed, the subsequent defense process is almost a formality. Even if you really only answer and not defend, it is not difficult to successfully obtain a degree. However, in recent years, there have been a few cases where the defense failed to graduate, and almost all of them were because they aroused doubts from the bosses... Of course, on the other hand, if you can perform well in the defense process, it is entirely possible to win the favor of the boss, thereby upgrading the diploma in your hand from a stepping stone to a battering ram... Therefore, it is not surprising that there would be such a tense and anxious scene... "Don''t all gather around Yang Liang." Finally, Zhou Shuwan, who couldn''t stand it anymore, tapped the table gently, attracting everyone else''s attention, and then said: "People have difficulty breathing when they are stressed, and if you all gather around them, it will only make his mind more confused." Perhaps in order to improve his persuasiveness, he added an additional sentence at the end: "This is what Academician Chang told me before." Sure enough, this sentence is both persuasive and attractive at the same time. Not only the others, but even Yang Liang himself, who was about to reply, raised his head curiously, with the burning fire of gossip in his eyes. "Teacher Zhou, I heard that you and Academician Chang... were classmates?" A junior girl next to her suddenly asked. In fact, everyone has been curious about these things since Zhou Shuwan joined the research team. Its just that I have been suffering from no chance. "I" Faced with the question of which pot should not be opened and which pot should be picked up, Zhou Shuwan''s expression froze. However, in the end, he nodded calmly: "Indeed, we are undergraduate classmates." After finishing speaking, he continued without waiting for others to speak: "Actually, he was already working as a professor before I even finished my master''s degree... and he was also present when I defended my master''s degree, so to be honest, if I were you, I wouldn''t be nervous at all..." In fact, this is to forcefully change the topic. Chang Haonan was indeed present when Zhou Shuwans masters degree was defended. But the problem is that the two people participated in not the same defense at all. Although it was impossible for Yang Liang opposite to know these details, he couldn''t help but rolled his eyes and complained in his heart: Nonsense, you and he are classmates, of course there is no need to be nervous, but he and I are not... For a moment, the entire conference room fell into an awkward silence. Fortunately, after such an interruption, the atmosphere, which had been tense to the point of breaking, finally relaxed a lot. Especially Yang Liang''s mental state seems to have improved a lot... Soon, as other review teachers including Li Xiongjiang arrived one after another, it was finally time for the defense to begin. A laptop is placed on the desk to share what''s going on in the conference room in real time Chang Haonan was currently in Haojing following up on the research and development of a large bypass ratio turbofan engine, so he could only attend via video. Fortunately, at the end of 2004, the Internet speed of individual users basically entered the era of Mbps as the unit. The bandwidth limit for commercial users has also reached double digits with the support of VDSL and other technologies. It can already support some video conferencing that does not require high image quality. A few seconds later, Chang Haonan''s face appeared on the laptop screen. It seems that it is also in a certain conference room. "Academician Chang, we are ready. Do you think we will start immediately?" Professor Li Xiongjiang asked politely. Chang Haonan initially agreed to attend, indeed largely because of Zhou Shuwan''s face. But after reading Yang Liang''s graduation thesis in detail, I was really interested. So he nodded and extended his hand in the direction outside the screen: "Please start the defense, classmate Yang Liang!" When Chang Haonan called his name directly, Yang Liang, who was already standing behind the small podium, even though he had prepared his mind well, his whole posture suddenly stiffened. Then he took a deep breath and gently turned the phone back to himself: "Dear teachers and classmates, I am the respondent Yang Liang. The title of my doctoral thesis is "Application of Digital Measurement and Spatial Positioning Technology in the Automatic Assembly Process of Aircraft". It was written by Professor Li Xiongjiang and Zhou Shuwan Completed under the joint guidance of engineers..." "First of all, the background of the paper''s topic selection. As a strategic industry that promotes the rapid growth of the national economy, the aircraft manufacturing industry directly affects the country''s international competitiveness and military deterrence. Aircraft assembly, as an important stage in the entire production process, involves There are a large number of complex components and auxiliary process equipment, and the coordination of each link is complicated..." Although it is impossible not to be nervous when faced with this kind of posture, after all, he has done genuine research for four years. Therefore, after actually starting to introduce the content of the defense, Yang Liang gradually got into the state: "Our school has cooperated with the Aviation Industry Group Haojing Aircraft Company to develop the country''s first automated spatial positioning and assembly production line. However, during the aircraft assembly process, measurements are often impossible due to objects covering them..." "My research content is based on the synergy between multiple laser trackers, using public observation points to transfer laser trackers, so that aircraft assembly can be carried out under a unified assembly coordinate system..." To be honest, even Chang Haonan didn''t expect that the Aviation Industry Group next door could advance automated assembly technology so fast after he and Yao Mengna gave it an initial speed. At the turn of the century, on the eve of the split of the head office, the Haofei Group''s method of producing JH-7A was still traditional manual assembly. It was only replaced by mathematical optimization methods in the management process of parts production, work hours and work station allocation. purely empirical method. In just four years, it has begun to consider introducing automation technology into the spatial positioning and assembly process at the large component level. If it can be combined with the large-part pre-connection process he has previously tested on the Falcon 8Z early warning aircraft, then the man-hours occupied in the final assembly process of an aircraft may be reduced to one-fifth or even one-tenth of the current level. Assembly accuracy can actually be improved. Of course, the current research can only be regarded as the beginning... Doctoral dissertations are generally long in length, and Yang Liang received guidance from both theory and engineering at the same time, and the amount of content involved was quite exaggerated. After a full 40 minutes passed, the PPT was finally turned to the last page. "My defense is over, thank you everyone..." Looking at the words "Please criticize and correct" on the computer screen in front of him, Yang Liang finally breathed a sigh of relief and stretched out a hand to support the podium to resist the slight dizziness. However, I dare not take it too lightly. After finishing the PPT, I just completed the first step of the defense. The real storm is still waiting behind... After entering the question and answer session, the four defense judges on the scene looked at Chang Haonan on the screen almost simultaneously. Although the latter is not the chairman of the review committee, from all perspectives, he should definitely be the first to speak. Facing this scene, Yang Liang also held his breath again... However, Chang Haonan just waved his hand calmly: "You should come first, I will ask questions later..." He didn''t even raise his head, but was writing and drawing something on the edge of the paper in front of him - First of all, with his current status, as long as he speaks, it basically sets the tone for the entire defense, and the people behind him will most likely not have any different opinions. Secondly, the content of Yang Liang''s report just now did give him a lot of inspiration... Seeing that Chang Haonan was not prepared to express his position, another professor quickly sat up straight: "You mentioned in your paper that for collaborative measurements between multiple laser trackers, the coordinates of the trackers need to be frequently converted, and you also gave a mathematical model of the station transfer error, but this model is based on It is calculated using public observation points. How do you plan to solve the problem of distribution and error of the observation points themselves? " Yang Liang forced himself to calm down and think for a few seconds. Fortunately, this is a tricky angle, but not a difficult one. "Public observation points are divided into three categories, namely optical tool ball point (OTP), benchmark tool ball point (TBP) and enhanced system reference point (ERS). Among them, OTP and TBP are respectively arranged on the tooling and stable ground. They can As a reference for target ball calibration..." However, the questions didnt end there "When the temperature changes at the aircraft assembly site, the thermal expansion characteristics of the tooling and frames in the main dimensions are different due to different materials, shapes and structures. Even the same component may have different expansion characteristics in different directions in space. , and your transfer method involves an expansion of freedom, is it somewhat unreasonable? Yang Liang: "This is limited by the current error modeling theory. Too high a degree of freedom will lead to divergence or false convergence of calculation results. And according to simulation tests, the current accuracy can already meet the requirements of existing models. Of course, we The next step of research will focus on solving the problem you raised..." "You just mentioned the ERS point, but in equation 6-41 on page 97 of your paper, only scaling relative to the center is introduced, that is, only the translation parameter is corrected, although modern aircraft are in most cases The arrangement of ERS points is also symmetrical in theory, but it is obviously impossible to be absolutely accurate in practice, so how are you going to deal with changes in the rotation parameters? " Yang Liang: "..." "Classmate Yang Liang, your method uses measured data to optimize calculations, so it will inevitably introduce noise data. How do you plan to remove this interference?" Yang Liang: "..." "besides" Sweat flowed down. Not even just Yang Liang. Even Zhou Shuwan turned his head slightly and looked at the figure on the screen not far away with a slightly pleading look... (End of chapter) Chapter 1167 Producing airplanes like sausages? Chapter 1167 Producing airplanes like sausages? "Ahem" Just when Yang Liang was ready to perform a live performance of "Facing doubts and apologizing like crazy", a cough suddenly came from the laptop that had been almost ignored by everyone. The meeting room, which was originally bustling with people coming and going, suddenly became quiet. However, the warm atmosphere was not interrupted. As for Yang Liang who was on the stage, when he heard that Chang Haonan seemed to be preparing to ask questions, his limbs became weak, his hands and feet were cold, and he looked like he was about to faint... The successive attacks from the four people in front of him were already too much for him to deal with. If this boss strikes another fatal blow... At a certain moment, two big characters seemed to flash before his eyes. Delayed. Although Professor Li Xiongjiang felt a little sorry for his students on the stage, at this point, it was impossible to forcibly interrupt other judges to ask questions. So I had to force a smile: "Academician Chang, please ask." However, Chang Haonan in the picture just tapped the paper on the table with the cap of his pen, and then said something that was beyond everyone''s expectations: "Well...I didn''t actually ask a question." As he spoke, he pulled two pieces of paper filled with formulas from outside the screen: "I want to say that I happen to have some ready-made research results here, which seem to be able to solve the problems raised by several other reviewers just now..." "???" The sudden change in the situation at this moment directly confused everyone. Several professors at the scene were stunned for a moment, and then looked happy The reason why they kept asking questions was not because they really didn''t want Yang Liang to graduate. Rather, I am really interested in the subject of the latter''s research. Just asking questions made the other person hang on the stage and couldn''t get up or down... Now someone has suggested that it can solve the problem. Naturally, curiosity is mixed with excitement. The same research group, as well as some of the postgraduate students who came here to observe, simply had never seen such a scene before, and were ready to watch the show. As for Yang Liang, who was about to cry just now... When these words reached his ears, they sounded like the sounds of nature During my defense, the academician not only did not ask any questions, but even took the initiative to answer my questions. If you tell me this, you will be able to brag about it for half your life... In short, although the conference room is still as quiet as before, the atmosphere has changed 180... In fact, for Chang Haonan on the other side of the computer, the calibration and compensation of ERS points is not a very complicated problem. It just requires some theoretical knowledge. But because of this, it seems difficult to explain this issue clearly in just a few words... After organizing his words for a while, he spoke: "As Yang Liang said at the beginning, ERS points are usually deployed on the assembly auxiliary frame to establish the assembly coordinate system. In this case, its displacement and deformation relative to OBP and TBP are linear. , so it is possible to construct an optimization model of the minimum weighted distance error function between multiple sets of compensated ERS theoretical values ??and actual measured values..." "For example, for g sets of data measured at m stations and k temperatures, the matching relationship between the measured values ??and the corrected theoretical values ??is (i=1,n)(RnP^k+Tn- Pa^k) Thanks to the advancement of network technology, Chang Haonan can write this daunting calculation directly on a piece of paper, and then display it close to the screen to everyone on the other side of the network cable. At the beginning, Yang Liang quickly returned to his seat and took a notebook, ready to write down some useful things. But before I wrote a few steps, I scratched my head gently, then silently put down the pen, looked forward with eyes full of wisdom, and sometimes paused slightly, sometimes frowned as if thinking... With this kind of behavior, a truly knowledgeable person can tell at a glance that they want to pretend to understand. Fortunately, the others either didn''t pay attention to the front or were in the same state as him, so nothing happened. After a slight pause for a few seconds, Chang Haonan put down the paper in his hand and continued to introduce himself: "This is a typical unconstrained multi-objective nonlinear optimization problem... I wonder if you have read the paper that Professor Abella Lieser and I published last month, which proposed an improved The subsequent LevenbergCMarquardt algorithm can be used to solve this problem with just a few adjustments. "The only pity is that this achievement is too new, so there is no ready-made preset software available at the moment. If you have program and algorithm design capabilities, you can design your own program for calculation. If not... MathWorks Company a few days ago I have been in contact with Professor Lieser, and MATLAB should provide a calculation toolkit soon..." "..." Listening to Chang Haonan''s explanation, Professor Li Xiongjiang sighed with a hint of regret - This is called research... Once an article was submitted, before anything could be done, large companies on the application side came to the door. But then again, others have a large application-side company in their own hands. Can''t compare, can''t compare... While he was emo-ing, several people who had just enthusiastically asked questions also became motivated again. Although everyone has not read it yet, or may not even know that Chang Haonan has published a new paper, it is obviously impossible for anyone to question the authenticity of what he just said. At least it''s impossible to question it on the spot. And if the accuracy problem of large-scale three-dimensional coordinate measurement can be overcome. So many problems seem to be solved... "Academician Chang." The professor who originally asked the question once again took the lead: Yang Liangs research is based on single-machine assembly. So if we zoom in and apply the same technology to the entire production line or even the workshop scale, combined with indoor GPS positioning, is it possible to get rid of the need for special frames during the assembly process? restrictions? The traditional aircraft assembly process adopts a non-automated mode, and each operation is highly dependent on manual labor. Therefore, for aircraft of different models and design features, a series of assembly frames need to be specially designed for the production process. For example, the frame used to install engines on C808 aircraft cannot be used on C909 aircraft. Even after some design changes of the same model, the auxiliary tooling must be replaced accordingly. This undoubtedly greatly reduces production speed and flexibility. Chang Haonan also responded positively: "Based on the actual accuracy of current three-dimensional coordinate measuring equipment, it is still very difficult to completely get rid of the formwork... But most of the special tooling can be replaced with general equipment. On the one hand, it can greatly reduce costs, and on the other hand, it can also improve Production flexibility, even allowing different models to be produced on the same line..." Speaking of this, he suddenly thought of a classic metaphor from more than half a century ago: Produce airplanes like sausages! There was a burst of laughter. Next, several defense reviewers, including Chang Haonan, began intense exchanges and discussions, and for a while they forgot about the main speaker on the podium. Although Yang Liang felt a little embarrassed, after all, his degree was important right now, so he was happy to see this kind of scene. However, it is a thesis defense after all. It is impossible to really treat the respondent as a transparent person. In the end, it was Chang Haonan who caused the crooked story in the first place and returned to the topic: "Classmate Yang Liang." Yang Liang, who was almost in a daze, almost jumped up from the sound, and quickly stood up straight with his chest raised and his abdomen straightened: "Academician Chang, please criticize and correct me!" This somewhat surprised reaction made Chang Haonan laugh a little. "Don''t be nervous. Overall, your defense was very good. However, some questions are obviously beyond the scope of this doctoral thesis, but this cannot be regarded as a shortcoming on your part..." After hearing this comment that had a certain tone, Yang Liang''s anxious heart finally calmed down. Professor Li Xiongjiang saw the right opportunity and resorted to a sudden and sudden drop of the hammer: "So...judges, do you have any other questions?" Chang Haonan had already said what he had just said, so it was naturally impossible for others to cause any more trouble. They all shook their heads or waved their hands, indicating that enough was enough. Zhou Shuwan, who had barely spoken during the entire process, now showed a relieved smile. His tense upper body slowly relaxed and he leaned on the backrest behind him. Only then did he realize that the back of his shirt was almost soaked After all, it had only been two years since I graduated with my Ph.D., so the memory of my defense was easily brought back... "Academician Chang is still awesome..." Looking at the conference room in front of me that had returned to its happy state, I couldn''t help but sigh in my heart: "Thanks for inviting me here..." (End of chapter) Chapter 1168 Turbofan 20 engine nacelle Chapter 1168 Engine Nacelle of Turbofan 20 Unsurprisingly, the doctoral thesis defense, which started to deviate from the middle, completely deviated from the preset timetable and lasted until noon before ending with everyone still unfinished. In fact, if Chang Haonan hadn''t forcibly returned to the topic in the middle, the discussion might have continued until the sun went down. However, this morning was not wasted. Of course, Yang Liang''s own research is still at a very preliminary stage, but the inspiration he brought to Chang Haonan is quite valuable. If he hadn''t learned through Zhou Shuwan that the other party had already found a good teaching position at Jincheng University of Aeronautics and Astronautics, he even thought of poaching him for a time - Although three-dimensional coordinate measuring technology was born out of the needs of the aircraft assembly industry, it can actually play a decisive role in the production and manufacturing of all complex mechanical products. Just like an aircraft engine. And because the physical size and weight of the aircraft engine are relatively small, the requirements for hardware equipment such as industrial robots, laser trackers, and digital photographic measurement systems are correspondingly less stringent. In line with the general principle of starting from easy to difficult and step by step... Well, those are all excuses. In fact, the expected aviation engine production capacity in the future is a bit high, and there is likely to be mixed production of multiple sub-models, so he wants to expand production as soon as possible... After the video conference ended, Chang Haonan was not idle. Instead, he quickly took out a notebook and prepared to sort out what he had just recorded casually. However, just as he started writing, he heard hurried footsteps coming from the corridor outside the office. A few seconds later, Zhang Zhenhua''s figure appeared outside the office door. Chang Haonan raised his eyelids slightly and glanced in the direction of the door. But he didnt stop writing with his hands: "Lao Zhang, why are you in such a hurry?" As the second-in-command of the Haofa Group and one of the deputy chief designers of the AE1500/Turbofan 20 project, Zhang Zhenhua naturally has the authority to interview Chang Haonan. But everyone is very busy at work, and communication is usually based on phone calls. It''s rare to come directly to your door like this. Zhang Zhenhua outside the door calmed his breathing slightly: "Mr. Chang, Nanzheng has transferred the engine pod suitable for the Y-9 transport aircraft to our side!" The sudden news finally stopped Chang Haonan''s movements. He put down his pen and looked up at the other party: "Has it been delivered?" Zhang Zhenhua nodded: "Following your previous instructions, the logistics and transportation team were sent directly to the No. 2 test workshop. The technical team is conducting acceptance inspection. Of course, your signature is required at the end..." At this moment, Chang Haonan could no longer sit still. Although Turbofan 20 nominally uses the core engine of Turbofan 10, because a set of intercooling devices are designed on the stator blades before entering the combustion chamber to improve thermal efficiency, the design of the entire high-pressure compressor is actually the same as that of Turbofan 10 There is a considerable degree of difference. Not to mention that such large-sized titanium alloy hollow fan blades are also used for the first time on an aircraft engine designed and produced by China. In the past month, the four parts of the fan, compressor, combustion chamber and turbine that have completed component-level assembly have undergone their own start-up and basic performance tests. Two of the hot-end components are not much different from those on the turbofan 10, so they have now entered the reliability and life verification stage. But for the fan and compressor, it is necessary to combine the two and install them in the engine nacelle to further verify the efficiency and stability of the entire boost assembly under close to actual conditions. Therefore, he hesitated for less than half a second: "Let''s go to the workshop and have a look..." The aviation engine is one of the core components of an aircraft, so the delivery of the engine nacelle is naturally carried out personally by Liang Shaoxiu, the chief designer of the Yun-9 In fact, he had been staying in Haojing for a long time in the past. Although the Qinfei Group located in Nanzheng has taken advantage of the east wind in recent years and made some achievements in the fields of special aircraft and transport aircraft, this does not seem to have improved its position in the aviation industry. On the contrary, the superiors made up their minds to reunite Qin Fei and Hao Fei earlier. Liang Shaoxiu, who holds positions on both sides, seems to have naturally become the direct promoter of this matter. "Old Liang." As soon as Chang Haonan entered the door, he saw Liang Shaoxiu who was directing technicians to transfer the flatbed near the flatbed. But almost in the next moment, his eyes were attracted by the light yellow engine nacelle in mid-air. Although the AE1500/turbofan 20 is just an "ordinary" high-bypass-ratio engine with a thrust of 14 tons, it is a product developed by Chang Haonan aiming at the future market after 2010, and it is quite forward-looking in design. To put it simply, it is an extra-large fan with a diameter of two meters. This also makes the engine nacelle of the Y-9 the largest product of its type ever produced in the history of the Chinese aviation industry. Moreover, compared with the C808 and C909 that adopt the traditional upper and lower symmetrical design, another innovation of the Yun-9 is that the leading edge plane of the nacelle lip is not perpendicular to the axis of the inlet, but forms a staggered intersection. This design allows the upper lip of the nacelle to extend forward, which can reduce the actual angle of attack of the oncoming airflow to the lower lip to a certain extent, delay the occurrence of separation within the lower lip, and improve the performance of the nacelle air inlet during large attacks. corner performance. However, as a price, the staggered angle will also cause separation areas in parts of the nacelle surface, which complicates the flow state of the entire air inlet area and puts forward higher requirements for the design level of the entire compressor part. After some routine greetings, Chang Haonan quickly began to direct the acceptance work. "The whole production process went smoothly, right?" While checking the items on the form one by one, he asked Liang Shaoxiu. Originally, this could only be regarded as a way to get to the topic. But the latter hesitated for a moment, then shook his head: "To be honest, it didn''t go well." Such an answer does not appear very frequently in Chang Haonan. So much so that he was even a little curious: "What specifically?" Liang Shaoxiu replied: "Other parts are actually fine, mainly the lips." He said and pointed to the nacelle that had been fixed on the auxiliary pylon with the antenna of the walkie-talkie in his hand: "This is an asymmetrical large-sized deep cavity structure. When we used to produce the engine pod for the C909, we used a process of split drop hammer forming and then tailor welding." "But Yun 9 has greater restrictions on the structural weight, and the wall thickness of the lip part is correspondingly thinner. On the one hand, the old process has too much springback after molding, and on the other hand, during the subsequent solution-quenching-aging heat treatment process It is also difficult to avoid deformation..." Hearing this, Chang Haonan''s heart moved: "So you first perform solution treatment on the blank, and then perform integrated integral molding?" "Exactly!" Liang Shaoxiu nodded, but the expression on his face couldn''t tell whether he was excited or worried: Its just that this technology requires very high precision for the pre-stretching of the blank and the mold itself, so the yield rate at this stage is not high, and it is almost unable to cope with the production needs of larger workpieces, especially those with a size of more than 3 meters. "3 meters?" Chang Haonan was immediately shocked, thinking that you are more daring to think than me, so he began to think about the GE90 engine in advance. But the other party continued to explain: "This size is not what we want to use...it was asked by the First Institute of Aerospace Science and Technology when they came to Haojing for exchanges. They said that they were preparing to develop a new generation of medium-sized launch vehicles using low-temperature propellants, so they had to carry out inspections on the 211 Factory. An overall process upgrade..." "The new rocket is still 3 meters in diameter?" Chang Haonan became somewhat interested. He had heard from comrades at the National Space Administration before that the development of a new generation of launch vehicles had been put on the agenda. But after all, it was a matter of another system, so I didnt ask about it in detail later. Unexpectedly, more than a year later, the demonstration stage has been completed and implementation has begun. "To be precise, it''s 3.35 meters." Seeing Chang Haonan being so curious, and considering that he was idle anyway, Liang Shaoxiu just knew everything and said: "The name of the pre-research over there was called Long March 2F/H, so I guess the size and use have some overlap with the current Long March 2F..." The former actually wanted to ask something more, but at this time the engine pod had been hoisted and fixed, and he was just waiting for the next task. Therefore, he had to put aside his curiosity, picked up the walkie-talkie and took two steps forward: "Compressor and fan, prepare to connect!" (End of chapter) Chapter 1169 Next step, hypersonics or variable circulation? Chapter 1169 Next step, hypersonic or variable circulation? Integrating the entire engine into the nacelle is actually a relatively complicated task. However, the turbofan 20 is still undergoing major component testing, so the only things that will be installed soon are the fan and the high-pressure compressor. Even so, it took the two teams of Qin Fei and Haofa several hours to complete the assembly work before the sun set that day. In fact, for a brand new engine-pod assembly, this efficiency cannot be considered low. But after all, Chang Haonan was still thinking about fully automatic assembly in the morning, so his vision and requirements are naturally different now. However, the meal must be eaten one bite at a time. The top priority is to verify the integration level of the nacelle and engine booster structure. Generally speaking, large aircraft such as transport aircraft and passenger aircraft have four typical flight states, namely the first take-off stage, the second take-off stage, the climbing stage and the high-altitude cruising stage. Naturally, it is impossible to have anything as tall as a large wind tunnel or a high-altitude simulation test bed in the assembly workshop, so the engine performance under the latter two conditions can only be determined when the complete machine is tested on the ground in the future. Fortunately, for today''s purpose, only two stages are enough... "Come on, let''s go to the control room." Chang Haonan looked back at the ready engine and said to Liang Shaoxiu next to him. According to regulations, when the engine is undergoing any form of test run, except for necessary personnel under special circumstances, others must be protected. When the two arrived at the control room on the third floor, several operators were already ready. Zhang Zhenhua stepped forward quickly, then stood at attention: "Mr. Chang, please give me the order!" Although the occasion was quite serious, this somewhat subjective sentence structure still made Chang Haonan almost stop. Fortunately, I still forced myself to hold it back. "Every number is in place!" After calming down, he took the microphone and reported the first test condition in a solemn tone: "The first stage of takeoff: altitude 0km, Mach number 0.23, angle of attack 8, far-field incoming flow turbulence intensity ratio and turbulence viscosity ratio 1%..." As instructions were input into the control computer one after another, the pylon hoisting the aviation engine assembly quickly adjusted its attitude from completely horizontal to slightly upward. The first stage simulates the stage where the aircraft has accelerated to take-off speed on the runway, but in order to prevent the tail from touching the ground, it can still only climb at a small elevation angle. This process lasts very briefly during takeoff, but because the aircraft has speed but no altitude at this time, it is a very fatal accident-prone area. "First test, ready to start!" Immediately after Chang Haonan''s voice fell, the test engineer slowly pushed the simulated throttle valve at hand to the end. From the perspective of the control room, it can be seen that the blades inside the nacelle slowly begin to rotate, and the white spiral on the cone in the middle of the fan is also drawn into a pattern similar to an eagle eye - According to many accounts, this design can reduce the probability of bird collision, or remind ground personnel that "the engine is working." But in fact, these are the functions of the piston engine era. For turbofan engines, it purely belongs to the corporate culture of airlines or aviation manufacturers. Therefore, Chang Haonan specially found someone to design such a style that was very different from others, as a product feature of the Aviation Power Group. The huge fan with a diameter of two meters may not feel like anything when you are at the airport, but when you actually put it in the workshop, you can still see it up close. After it is started, it still has some momentum. While the sensors were collecting data, Liang Shaoxiu, who had been silent just now, stepped forward: "Mr. Chang, if it is four turbofan 20s, it should be able to drive a large transport aircraft like the IL-76, right?" Chang Haonan didn''t answer, just tilted his head and glanced at the other party. As an aircraft designer and a professional large-scale aircraft designer, this question is obviously asking knowingly. So the focus must be on the back. Sure enough, seeing Chang Haonan not answering, Liang Shaoxiu paused for a moment and continued: "When the Yun-9 business is finished, can you please suggest to your superiors that it''s time to start the development plan of a domestic strategic transport aircraft..." Well, it turns out I was just waiting here. But this is not difficult to understand. The Y-9 prototype temporarily equipped with PS90A has entered the final stage of final assembly and is expected to complete its first flight before the Spring Festival of 2005. Based on the experience of the past few years, this relatively stable model can be designed and finalized in about two years. As for production and finalization That''s not entirely the burden on Liang Shaoxiu''s shoulders. "I guess...the Air Force should already be demonstrating." Chang Haonan did not agree directly, but still gave a quite optimistic response. Even in the previous life, China''s domestically produced large transport aircraft was officially launched in 2007. In this timeline, although the larger number of IL-76MFs have provided China with quite sufficient strategic airlift power, after all, the objective conditions are quite sufficient, so there is no reason to be slower than in the previous life. The only problem is that because the demonstration speed is too fast, Liang Shaoxiu cannot keep up with his own time, causing the project to fall into the hands of others. In fact, considering that the aviation industry has accumulated considerable experience in hundreds of tons of products, and the turbofan 20 should have been completely mature by that time, it is even possible that the 200-ton model does not require him at all. worry From this point of view, China''s aviation industry is gradually getting on the right track and is really getting better. Chang Haonan suddenly felt emotional when he thought of this. It has been nearly nine years since he was reborn. China Aviation Industry has also developed step by step from manufacturing second- and a half-generation fighter jets to being able to mass-produce third-generation fighter jets at a rate of about 30 per year, as well as mainline and large regional passenger aircraft. At the same time, multiple new models are being developed simultaneously. It is no exaggeration to say that it has basically reached the research and development capabilities of its previous life around 2014. So next step If nothing else, the debate on fourth-generation fighter jets will soon begin. But this process should not require too much interference from Chang Haonan. Moreover, as long as limited improvements are made on the basis of Turbofan 10, it can be upgraded to a standard fourth-generation turbofan engine. At that time, it was considered that China''s materials and process levels did not support such high performance, so a relatively conservative plan was chosen. Now that so many years have passed, it should not be difficult to simultaneously provide a new generation of fighter jets with an engine that benchmarks against world-class standards. At least not enough to serve as the core work of the next phase. "Is it hypersonic speed, or is it cyclic?" Chang Haonan suddenly felt a little confused He himself could certainly support both projects moving forward together. However, the resources that China can currently provide do not support... Fortunately, the troubles of happiness did not last long. The engine quickly entered a stable working state, and each data point appeared on the computer screen in the control room. "Report to Mr. Chang!" An engineer''s voice interrupted Chang Haonan''s thoughts: "The fan and high-pressure compressor are working stably, and no obvious temperature or dynamic abnormalities are found. The total pressure at the inlet of the outer duct is 145.3Kpa, the total pressure at the inlet of the inner duct is 124.7Kpa, and the total pressure boost ratio is 41.7, which is affected by the intercooling equipment on the back of the stator blades. Very small "Due to the influence of the incoming flow angle of attack, airflow stagnation points appear outside the upper and lower lips of the nacelle. The airflow speed inside the lower lip is Mach number 0.861 at the fastest point. The total pressure recovery coefficient of the nacelle itself is 99.62%, distortion index 1.13% Without the combustion chamber and turbine installed, much of the performance cannot be accurately measured. But even so, the current test results undoubtedly show that Chang Haonan''s choice of integrating the intercooler and compressor design was a great success. Moreover, the engine pod equipped with the turbofan 20 also shows excellent adaptability. Although the engine itself of this model is not very complete, at least there is no need to worry about the fundamental risk of technical route errors. And this is enough for the current Chang Haonan. "Get ready to adjust the test conditions!" He ordered in a calm tone: "Takeoff second stage: altitude 0.03km, Mach number 0.28, angle of attack 15..." The second stage is the normal climbing process. Compared with the first stage, the flight conditions are more demanding, but the risks are not that high. And in essence, the characteristics of the two stages are quite close, so since the data in the first stage is normal, there should be no big problems in the second stage... Sure enough, after the angle of attack and speed were increased at the same time, the only obvious change was that the peak Mach number of the lower wall increased by 0.161, thus exceeding the speed of sound. Although the rest of the total pressure recovery coefficient, boost ratio, and distortion index all deteriorated, But it will hardly affect the normal working condition of the engine. The fact that the total pressure data at the entrance of the inner and outer culverts has almost no change proves... "Old Zhang." Chang Haonan glanced at his watch, and then waved to Zhang Zhenhua who was not far away: "You ask the publicity department to publish a report on today''s test. Don''t mention specific performance indicators or models. Just focus on our requirements for the next generation of high-bypass-ratio turbofan engines in terms of exhaust emissions and fuel consumption. "By the way, combined with the IPCC fourth round of environmental assessment that has just started recently, we must stand on the moral high ground, so as to release enough signals and pressure to the outside world..." (End of chapter) Chapter 1170 Are the Chinese going to take the blame? Chapter 1170 Are the Chinese going to throw the blame? The Aerospace Power Group''s publicity campaign was quick. Just two days later, an article signed "Chang Gong" was published in the Friday issue of China Aviation News - "The West is not bright but the East is bright - my country''s first large bypass ratio turbofan engine has completed the first phase of testing" On the surface, this appears to be just an ordinary promotional report of an achievement. Not only was the specific model not mentioned. Moreover, terms such as "first phase testing" are also very vague, and there is no unified standard at all. We can only guess the meaning between the lines. Therefore, under normal circumstances, except for internal colleagues and some enthusiasts who are interested in this field, almost no one will pay special attention to this kind of report. However, this time the situation is different. For example, create cross-century leading equipment, carry out in-depth research on cutting-edge science and technology, boldly innovate design theoretical systems, and comprehensively conquer key core technologies and achieve a series of major breakthroughs, achieve fundamental changes in research and development methods, and achieve intergenerational leaps in product levels Such regular content is of course essential. But in the second half of the report, the author changed his tone and dedicated nearly one-third of the space to discussing what characteristics the next generation of aviation power should have. First of all, it was mentioned that at the IPCC assessment kick-off meeting, the emission data released by the United States was questioned, which triggered the increasingly urgent pressure on mankind to reduce emissions - "As a member of the human race, we certainly hope that this is just a good misunderstanding, but considering that the United States has still not given a reasonable explanation for this matter so far, it has also deleted the past posts on its official website of the Environmental Protection Agency. The infrared spectrum of the atmosphere forces us to consider the possibility that this allegation is true. If we assume that since 1992, when countries signed the United Nations Framework Convention on Climate Change, the United States has concealed 30% of its domestic carbon emissions levels from the public every year, that means that by now, there have been about 40 billion tons of additional carbon dioxide Entering the atmosphere, which will undoubtedly further increase the difficulty of curbing global climate change. Although the responsibility for excessive emissions undoubtedly lies with the United States, the urgency of mitigating climate change must be faced by all mankind. According to calculations by the International Civil Aviation Organization, the average annual carbon emissions of aviation/maritime transportation and related industries around the world The volume is at the level of 2 billion tons, and will gradually increase with the increase of global trade volume. Obviously, the CAEP4 emission standards formulated by the Aviation Environmental Protection Committee are no longer able to adapt to the current emission reduction pressure. Therefore, we are considering revising the new civil aviation technical standards and formulating more stringent emission limits in the next stage, such as requiring aircraft engines and gas turbines. Cruise fuel consumption is reduced by 10%, carbon dioxide and nitrogen oxide emissions are reduced by 16% and 30%, and new detection requirements for carbon monoxide and unburned hydrocarbons are added... In short, it is a eloquent four to five thousand words. It first establishes the position of the victims of climate change, then extremely "magnanimously" states that the hole dug by the Americans needs to be filled by everyone''s concerted agreement, and finally states that the shipping industry controls carbon emissions. necessity. Anyone who comes must first praise the layout. After it was published, Chang Haonan felt that there was not enough news, so he continued to report to the higher ups, and finally inserted a text message of about 20 seconds into the 7 p.m. news. As a result, it soon attracted a higher level of attention than ever before In fact, at the beginning, most people focused on the first two-thirds of the content. After all, it has been more than two years since the Yun-9 project was established, and many news indicate that the No. 01 prototype using imported engines may make its first flight in the near future. Some wall-crawlers in the Nanzheng area even photographed a yellow-skinned twin-engine transport plane parked inside a factory. By 2005, the Internet had become quite popular in China, and chat rooms that only a handful of people could enter in the early years had gradually developed into larger forums with more concentrated traffic. Therefore, the speed at which relevant news spreads is already extraordinary. [I have an uncle who works in the Qin Fei Group and told me that this aircraft should be planned to replace the Y-8. The twin-engine turbofan has a longer range, a larger load capacity, and is quieter than the four-engine turboprop. /Applause//Applause/] [This yellow leather aircraft looks like it should be equipped with two PS90A. Its take-off weight should be about 70-80 tons, which is slightly larger than the Yun-8, but it can also be regarded as the same level. And look at the report a few days ago. I mean, after replacing the domestic engine, the performance is expected to be further improved, and it can match the situation mentioned by the original poster / salute /] [Just asking if you dont understand, will replacing four engines with two have any impact on reliability? As a tactical transport aircraft, the Y-8 should also have the ability to take off and land at field airports, right? [You cant just look at the number of engines. After all, both the foundation of the An-12 and the turboprop 6 itself are too backward, so even if it is replaced with two new turbofans, the reliability will be significantly improved. As for taking off and landing at field airports Its not even a problem. Even the IL-76 and C17 can actually do it. The key is the landing gear design rather than the engine...] [I think this new medium-sized transport aircraft is about to fly for the first time. For reference, the American C17 first flew in 1991 and entered service in 1993. It is possible that like the J-11 modification, the first batch or the first two batches will use PS90A. Subsequent batches will be replaced with domestically produced power/make fists//make fists/] [According to general experience, it is true, but I feel that the research and development progress of domestic aviation engines has been quite fast in recent years, so it is hard to say, maybe we can catch up with the first batch of service...] [When you mentioned this, I suddenly remembered that the author of the report in the Aviation News was named Chang Gong. Could it be that he was the vest of Academician Chang of the Aviation Power Group? [I think what you said makes sense...] Posts like this soon appeared in almost all domestic military and aviation enthusiast forums. In this timeline, when China has fully entered the Internet era, both the Turbojet 14 and the Turbofan 10 are already quite mature models. Moreover, it is no secret that China participates in the design and manufacturing of the M88 and SeA650 engines. As for the "shortcomings" of domestic aviation engines, these are things that only the previous generation of military fans can clearly remember. Therefore, everyone is generally quite optimistic about the progress of the new engine. Many people also gave Chang Haonan a thumbs up. However, optimism is optimism. But most people completely miss the point. Chang Haonan was somewhat dumbfounded. Fortunately, there are still some people in the industry who are keenly paying attention to the key points of this report... Birmingham, UK. Tim Purdy entered Panos Watson''s office with a brief in hand. At the end of 2004, the Airbus A380 No. 1 prototype equipped with the Trent 900 was publicly unveiled and officially confirmed to make its first flight in March 2005. The latter, who was originally solely responsible for this model, was naturally promoted and became He became the deputy director of Rolls-Royce Group''s entire civilian product line. Officially became a member of the core power level of the group. As the tide rises, other members of the same project team will naturally receive corresponding promotions. For example, Bodie, while retaining the deputy director of the Trent 900 project, began to preside over the New Generation Medium Thrust Turbofan Engine (NGME) project, which is what Champine mentioned before and is adapted to the new generation Airbus A320. Aircraft aerodynamics. The project team has temporarily named it Trent 300. Of course, I just borrowed the name of this world-famous series. If nothing else happens, the design should still start from scratch, using a relatively simpler dual-rotor structure. There are still some differences on whether to learn from the V2500 experience. Recently, Bodi has come to talk to Watson frequently, just to obtain more abundant resources to implement the work into the specific demonstration stage as soon as possible. But at the moment, the decision-makers, including Watson, apparently still think Champine''s warning is a bit alarmist. With a cash cow like the V2500 on hand, the Trent 900 and the Trent 1000 engines adapted for the Boeing 787 have higher priority. But after all, Purdy is the most important confidant of Watson, the new executive, and he also knows some ulterior secrets in the Trent 900 project. Therefore, it is not easy for the latter to refuse the other party''s request very forcefully. Therefore, Watson felt a bit of a headache as soon as he saw Bodie appearing at the door. Fortunately, this time, Bodie really wasn''t looking for trouble. "Panos, I''m not here to ask you for money this time. Don''t look sad when you see me..." Without any hesitation, he pulled a chair from the side and sat across from Watson. At the same time, he placed the briefing in his hand in front of the other party: "Come and see this." Although Watson was a little doubtful after hearing this, he still relaxed a little: "Thank God, you finally have something else to talk about with me..." Then put on your glasses and pick up your briefing paper. Above is about half a page of a newspaper. It seems to be from China. Of course Watson doesnt understand Chinese, but fortunately the second page of the briefing provides a complete translation and analysis. "New high bypass ratio turbofan engine..." Like everyone who had just seen this report, he first paid attention to the aircraft engine model mentioned in it. "I know this model... According to speculation, it should use the core machine of their turbofan 10, and it is intended to be used on military transport aircraft instead of the Russian-made PS90A." As a professional technician, Watson has been tracking the development of his peers. Only after my recent promotion, the frequency of attention has dropped slightly. But Bodi shook his head directly: "The first part is not important, look at the second half..." Watson was stunned for a moment, and then he turned to the third page of the briefing. "The second half..." As a result, before even looking twice, I couldnt help but burst out laughing: "It seems that Americans are in a very awkward situation with China on the climate issue..." People in his position naturally know that the core of these climate and environmental protection issues are business and have nothing to do with saving the earth and saving mankind. But dont delay watching American jokes. However, Watson''s smile soon solidified on his face: "Hope that the new standard''s cruising fuel consumption will be reduced by 8%? Carbon dioxide and nitrogen oxide emissions will be reduced by 16% and 30%?" Perhaps because his throat was dry, his voice was quite strange at this time. However, Watson no longer cared to pay attention to this. These numbers almost made his eyesight go black: "The Chinese people can''t get a piece of the cake, so they want to smash the table?" (End of chapter) Chapter 1171 Hypersonic wind tunnel Chapter 1171 Hypersonic Wind Tunnel Even some aviation enthusiasts have heard about Chinas establishment of the Turbofan 20 project. Naturally, there is no way to hide this from these well-informed colleagues. However, the industry''s performance expectations for this model are basically the same as the PS90A, and it will serve as a domestic replacement for the latter. However, this is not entirely because they underestimated China''s aviation development level. But the Turbofan 10 itself is too confusing Although the self-use J-10A and J-11B have not officially appeared in public at air shows or other occasions, these two models, especially the latter, have encountered many old opponents around China. Judging from feedback from pilots and information collected from various channels, the performance of the turbofan 10 should be slightly stronger than the original AL31F and early F110GE100, roughly reaching the level of the third and a half generations. And considering China''s relatively weak material and process level, it may be that the service life has been exchanged for a certain performance. It should be said that this series of speculations are not wrong. It can even be said to be very accurate. But the problem lies behind. Due to the above analysis, it is natural for everyone to regard this model alongside the 117S or F110GE129 as the ultimate overhaul of the third-generation turbofan engine. It should be a state where the potential has been almost drained. However, in fact, the Turbofan 10 is a youth version of the fourth-generation turbofan engine. We are at a stage where we have not yet begun to exploit our potential. Over and over again, the performance estimation of the turbofan 20/AE1500 naturally went wrong. The performance is comparable to that of PS90A, which was barely enough in the 1990s. But now in 2005, it is already at a level that is unlikely to make it to the table. Basically, it can only be sold in China and Russia like C909/Tu214, or sold to some users who are unable to purchase the latest Airbus or Boeing aircraft due to Western sanctions. What''s more, the airworthiness mutual recognition agreement China reached with Europe a few years ago does not include mainline aircraft. Even if their new turbofan can reach the average level of V2500 or CFM56-7, it will be difficult to easily surpass it. Therefore, in the view of Panos Watson at this moment, China has simply borrowed their British talent for stirring up trouble and is preparing to add chaos to the CAEP8 emission standards that are about to be formulated. However, Tim Purdy has a different view. "Mr. Supervisor." After all, they were discussing work matters, so he also changed his title: Do you think its possible that China wants to take advantage of the opportunity of setting new emission standards to increase its voice in the entire aviation industry? "I mean, they first proposed a goal that is impossible for anyone to achieve, but we can''t openly question the rightness of lowering emissions..." Although the CAEP standards are formulated by the Aviation Environmental Protection Committee, like most other international organizations, actual operations are controlled by a few countries. When the CAEP2/4 standard was formulated, both China''s aviation technology and shipping market were still at a level where it was difficult to put it on the table, so there was naturally no opportunity to speak out. But in the second half of the 1990s, especially after entering the 21st century, China''s technological progress and technical cooperation in the field of regional airliners and helicopters, as well as the terrifying market size that has begun to realize its potential, have gradually given them a chance to compete for the right to speak. Base. Not to mention others, it is difficult for Finmeccanica, Eurocopter, Airbus, Dassault... and even Rolls-Royce themselves to completely ignore the opinions put forward by China. Not to mention that judging from this report, people still firmly occupy the moral high ground on the climate issue. "But at most this will make the entire negotiation deadlock... and it won''t be of any benefit to them?" Although he said so, there were some subtle changes in Watson''s eyes. It was obvious that he had come up with some new ideas. For example, cooperating with the Chinese to create some extra chaos for the other two competitors. I''m just not ready to say it myself. And Bodi is very suitable as the person who takes the initiative to give opinions (and takes the blame if something goes wrong): "Maybe you''re right, but what I mean is...why let the situation reach a stalemate?" Watson smiled like an old fox: "Go on." "Since we have guessed this in advance, and have already had de facto cooperation with the Chinese..." Hearing this, Watson''s smile became even brighter. However, the meaning of the second half of Bodi''s sentence completely deviated from Watson''s estimate: "Then why not talk to the Chinese people and use it as a bargaining chip to strengthen their voice within ICAO and get some additional investment from there?" The sudden change made Watson unable to react for a moment: "What?" Bodie shrugged: "Let''s have a nominal joint research and development... Maybe we can hand over some parts to them for OEM production like the Trent 900, or refer to Airbus and put the products sold to the Chinese market, or even the entire Greater China market, on Huaxia domestic assembly..." Each company, or even the same company, has different positioning for "Greater China" at different times. For example, on the Luoluo side, it refers to the entire China including both sides of the Taiwan Strait, Hong Kong and Macao, plus Malaysia, Vietnam and Singapore. Watson''s expression was a bit unbearable: "But you just said that you didn''t come to me to ask for money this time?" Bodi, on the other hand, took it for granted: "I''m not asking you for money, I''m just asking for your permission to make money abroad..." As time passed, the report gradually caused ripples in the industry. However, most people only regarded it as cooperating with Zheng Guogang''s attack on the United States at the IPCC meeting, and did not really treat it as a particularly serious matter in the aviation field. As for Chang Haonan himself, he has no time and is temporarily unable to pay attention to these small reactions that occur within other companies. Instead, I have focused my main energy these days on a report After the component-level testing of the Turbofan 20 entered the second stage, he quickly determined the focus of his next work. Considering that the future turbofan 10G can basically meet the basic needs of fourth-generation fighters, it seems that the variable-cycle engine will not have a suitable installation target in a short period of time. On the other hand, as the new generation combat platforms of the People''s Liberation Army (except the Army) are gradually finalized and installed, the main shortcoming that restricts the improvement of the army''s combat effectiveness has become the lack of sufficiently advanced weapons and ammunition. The hypersonic project can solve this urgent need. Not only does the final hypersonic weapon have powerful deterrence capabilities, but the results obtained during the research process can also benefit other types of weapons and equipment, and even other fields. But compared with Chang Haonan''s past research, hypersonics is an almost completely different field. It is difficult to rely on existing design and calculation theory and apply it mechanically. So before any real research project, he first needed an assistive device. Hypersonic wind tunnel! And this can be said to be the field that Chang Haonan is most familiar with. Not one of them! You know, before his rebirth, he was a relevant technical staff member of the JF22 wind tunnel. Although he was just an ordinary engineer who was not involved in the core design at that time. But I am very familiar with the overall situation and technical difficulties of hypersonic wind tunnels... A thermochemical reaction in the air occurs around the hypersonic vehicle, showing non-linear, multi-physics and multi-scale characteristics When the temperature is around 2000K, the relaxation time of oxygen molecules is about one thousandth of a second, and at 6000K, it is about 0.1 microseconds. Calculated according to the flight speed of 6000m/s, then the equilibrium length of the first relaxation time is reached is 6 meters, which means that for a 6m long aircraft, the head shock wave has different shock wave temperatures, and the gas around the aircraft always has a certain area of ??gas in a non-equilibrium state..." In order to express his importance, he did not use a computer or printer, but wrote quickly on a page: "Reliable hypersonic ground tests must meet three key requirements. One is to reproduce the total airflow temperature under given hypersonic flight conditions. For example, under flight conditions at an altitude of 30km and a Mach number of 7, the total temperature of the wind tunnel test gas The temperature should be 2700K. At this time, the oxygen in the stagnation area of ??the aircraft model has begun to dissociate. For a flight with a Mach number of 10, the total airflow temperature exceeds 4500K, and nitrogen molecules have begun to dissociate... Therefore, any existing wind tunnel is not sufficient to support hypersonic research with a Mach number of 6 or above. Consideration should be given to building a new wind tunnel using detonation drive technology at the Fucheng base to support the development of hypersonic aircraft in my country''s atmosphere. Work! " (End of chapter) Chapter 1172 five configurations Chapter 1172 Five Configurations Chang Haonan''s report seemed a bit abrupt, but it actually stuck at a very delicate point in time. In fact, Chinas research on hypersonics started very early. In the mid-1950s, before China had even successfully launched its first missile, two seniors, Qian Xuesen and Guo Yonghuai, formed a "shock wind tunnel" research team at the Institute of Mechanical Engineering, Chinese Academy of Sciences, and began to plan hypersonic speeds from a strategic level. technology research. You must know that at that time, even the United States and the Soviet Union had not yet determined from an engineering level what technical means would be used to achieve hypersonic flight. However, relevant departments and leaders still realized the significance of this research, and squeezed out some resources under very difficult conditions to support the construction of the JF4 straight-through type and JF4A reflection-type shock wind tunnel. Finally, in 1969, it became a blockbuster with the creation of the JF8 cold hypersonic wind tunnel, which represented the world''s top level at that time. Operating range is up to Mach 15. However, traditional aerodynamic research generally uses "flow state simulation" as the criterion, that is, based on a reduced aircraft model, the experimental airflow is required to meet some mobile phase parameters, such as Mach number and Reynolds number. Hypersonic research pays more attention to the "reproduction of flight conditions", which requires the main parameters of the experimental airflow, such as speed, static temperature, static pressure, medium composition, and characteristic scale, to be the same as the actual flight conditions. For example, under flight conditions of Mach number 7, even if a traditional wind tunnel can simulate airflow at this speed, the total gas temperature under experimental conditions is only 648K, which is far less than the 2500-3000K under actual flight conditions, and cannot be reproduced at all. Discover the core physical phenomena of hypersonic flow. Therefore, wind tunnels like JF8 still have great limitations. In order to truly carry out practical hypersonic research, it is necessary to further increase the total working temperature of the wind tunnel while ensuring the airflow speed. For this purpose, Europe, Japan and the United States have independently developed two technical routes: free piston drive and heated light gas drive. However, these two solutions have gone to the other extreme, that is, one-sided emphasis on the total working temperature, but if you want to expand the experimental flow field and extend the experimental time, you need to pay a huge cost. It was completely unacceptable to China in the last century. Fortunately, domestic scholars have found the seemingly low-feasibility solution of detonation drive, and with the support of the 863 Project, they successfully conducted a preliminary technical demonstration through the JF10 wind tunnel built in 1998. This meeting in 2005 happens to be the next key node in the selection of ultra-high-speed wind tunnel routes. Therefore, although he did not receive immediate feedback after submitting the report, Chang Haonan was not in a hurry. Instead, he quickly focused on the theoretical level of solving the high-dimensional Chapman-Jouguet combustion equation... Sure enough, about a week later, Chang Haonan received a call from Li Zhongyi. "Hello, Director Li." It can be said that he knew the purpose of the other party''s call, so even his tone was confident. But it turns out that Chang Haonan still underestimated the influence of his own handwritten report... Li Zhongyi on the other end of the phone didn''t even have time to say hello: "Academician Chang, your superiors want to invite you to the Jingxi Hotel to give a report next Monday. Let me ask if your arrangement is convenient?" In one sentence, Chang Haonan almost suffered a power outage Words such as invitations and inquiries are obviously polite. Li Zhongyi''s superior, what a joke. Can it be said that it is inconvenient? So the key is not here, but... "Report?" "In Jingxi Hotel?" Chang Haonan had a hard time combining these two terms. In actual operation, the Jingxi Hotel is affiliated to the General Staff Management and Security Department. Its level is almost the same as that of the Great Hall, and its secrecy is even worse. Even he was only lucky enough to attend a one-day meeting after the 2001 attack. The problem is, that place is generally used for decision-making, not academic discussion... "Yes, Jingxi Hotel." Li Zhongyi added emphasis and reconfirmed: "The report you submitted can be said to be very timely. The General Armament Department happens to have some questions about the hypersonic test plan proposed by the Institute of Mechanics and the Aerospace Science and Industry Corporation...including some internal disputes within themselves, so I would like to hear from you comprehensively. view. Chang Haonan knew that he was stuck in time. But I didn''t expect it to be so accurate. The Institute of Mechanics is the R&D institution for all the above-mentioned JF series wind tunnels. As for the Science and Industry Group, after the Aerospace Corporation was split into two, it became the unit responsible for sending people to the west. At the turn of the century a few years ago, they obtained part of the "cold" program information based on the development of the 5V28 missile from the Baranov Central Aviation Engine Research Institute. However, at least in the original timeline, there is no evidence that this information has a direct technical connection with the hypersonic weapons that China finally put into service. "So will their two departments also send people to go together?" he asked, thinking quickly. "Yes, but not together." Li Zhongyi replied: "The superior hopes to listen to the opinions of each side separately to prevent your opinions from affecting each other..." This reply made Chang Haonan feel nervous. Obviously, this is not a simple discussion. Rather, it is a rather high-level decision-making reference. "Then I''ll prepare." Chang Haonan said and looked at the computer screen. Inside the folder, there were more than a dozen related information that had been sorted out quietly. Li Zhongyi on the other end of the phone hesitated for a moment, but finally said: "Academician Chang, although there are some professionals in this report, they are mainly leaders, so we try to reduce the length of the theory...especially the theoretical mathematics part. I''m worried that everyone will not be able to accept it..." Chang Haonan''s head is full of black lines: "Don''t worry, I know it..." Hang up. That''s what he said, but the content he originally prepared cannot be uploaded as it is. The decision-making layer does not care or need to care about how the detonation equation gives a global solution, and how the high-precision hybrid format is applied in gas-phase detonation calculations. So the focus should be on - Chang Haonan reopened a Word document and typed a title line on the first page: "On the Necessity and Characteristics of Hypersonic Vehicle Design and Layout Optimization". The information is still the same, it just needs to be reorganized. As required, Chang Haonan came to the conference building of Jingxi Hotel early on the day of the report. What was somewhat beyond his expectation was that after being guided by the staff, he arrived at a small conference room. Even including the seats that were obviously added temporarily, there were only about twenty. As for the number of participants who arrived one after another, it was even better than the last time the high-standard farmland construction project was finalized. They also include Qiao Chenqing, Chen Bingde and other military decision-making leaders. Even the two of them cannot sit in the two middle seats... Seeing Chang Haonan preparing on the podium, Qiao Chenqing, who was familiar with him, originally wanted to go up and say hello. But before he could get up, he heard the sound of a report being prepared to start coming from the loudspeaker. Almost at the same time, two old men wearing unranked military coats appeared outside the door... "Dear heads, I am very honored to be here today to report on the development of my country''s hypersonic aircraft and some of the latest research progress..." Even Chang Haonan felt nervous for the first time when faced with the situation in front of him. Even the speed of speaking has become much faster. "Our country''s basic research on hypersonic theory started very early. Especially since the late 1980s, through numerical simulations and small-scale experiments, the flow field shape of hydrogen fuel combustion, the basic concept of scramjets, and the design of hypersonic aircraft have been studied Exploratory research has been conducted in areas such as guidance and control rate, and the gap with first-mover countries mainly lies in aerodynamic layout design and flight testing..." "Although my personal knowledge of numerical simulation is still limited, judging from some research conducted in the past, hypersonic aircraft are different from conventional sub-, trans-, and hyposonic aircraft. There are three characteristics in its design optimization...or difficulties. The first is the integration of airframe propulsion caused by the special aerodynamic layout. Since hypersonic aircraft generally use scramjet or combined propulsion engines, they have very high requirements on working conditions and the power generated is not abundant. Therefore, the design process must revolve around the requirements of the engine. And the expansion makes the hypersonic aircraft fuselage and scramjet engine appear highly integrated..." "Second, multi-objective optimization design is complicated..." "The third one is derived from the second one, a global optimization algorithm adapted to large-scale complex multi-objective problems... Fortunately, thanks to the support and help provided by superiors, my research group has achieved certain results in this aspect. But data support from a large number of high-reduction experiments is still needed..." As the content came to areas that he was becoming more and more familiar with, Chang Haonan also gradually entered the state. When he said this, he also specially observed the state of the audience below. Fortunately, no one showed any negative feedback. It just seems a bit bland relatively speaking. However, Chang Haonan has prepared a major explosive point below. "Based on current research, the aerodynamic layout of hypersonic aircraft can be roughly divided into five categories, corresponding to two different power forms and three different applicable environments." He said with a slight click of the mouse. Immediately afterwards, a three-dimensional diagram appeared on the curtain. Although there was still only Chang Haonan''s voice in the venue, at the moment when the PPT page was turned, more than a dozen leaders adjusted their sitting postures almost simultaneously. The look he cast towards Chang Haonan also brought some curiosity - Didnt you just talk about a lot of difficulties? Why are there suddenly five layouts? (End of chapter) Chapter 1173 Call all over the world in one hour Chapter 1173: Across the world in one hour Chang Haonan paused for about a second to let the leaders have an idea of ??the appearance on the PPT. Then he moved closer to the microphone again: "The first type is the traditional waverider, which is also a theoretically optimized conceptual shape reversely designed from the perspective of aerodynamic performance. It has the best lift-drag characteristics among all solutions. Thanks to the foresight of academician Qian and other seniors, our country Considerable research results have been accumulated on this configuration. "However, the volume of the waverider is very small, and due to its special shape, the internal space utilization efficiency is also low. When considering the mission load, almost only the use of external rockets or ballistic missiles can be considered as the propulsion system. "Give it a high trajectory height and initial velocity before gliding, but there are insurmountable shortcomings in using air as the oxidizer." In terms of weapon applications, this type of configuration is bound to be large in size and can almost only be carried by launch vehicles, launch silos or ballistic missile nuclear submarines. It is difficult to hide the target characteristics during launch, and there is a large range close range. Therefore, it is more suitable to carry out medium and long-range strategic strikes..." Everyone here is his own people, so Chang Haonan doesn''t need to deal with the fictitious things and directly use them for strategic deterrence. However, this part of the content is still relatively routine. As he himself said just now, the domestic research on traditional waveriders is relatively mature, so the relevant content was naturally mentioned in the previous reports of the Institute of Mechanics and the Aerospace Science and Industry Corporation. It''s just not necessarily that naked. However, Chang Haonan''s last words before turning the page still touched everyone''s hearts: "For example, if the Dongfeng 31 missile is equipped with a gliding warhead with a traditional waverider shape, it can become a complete intercontinental ballistic missile and cover most key locations in North America..." Several leaders even had their eyes dazzled. As an important weapon of the country that was only tested before the 1999 military parade, the status of Dongfeng 31 is indeed somewhat embarrassing. In terms of range, it barely touches the standard edge of intercontinental missiles, which results in limited actual combat value. It also directly misses the point for others, causing the deterrence value to be greatly reduced. Although the Dongfeng 31A with the extended range is nearing the end of development, it is difficult to say that it will be able to make up for it. This made the Second Artillery 8xx Brigade equipped with the basic Dongfeng 31 model quite embarrassing. The Aerospace Science and Industry Corporation has even considered learning from the experience of the Russians next door and using Dongfeng 31 as a launch vehicle. Although it is indeed a solution, it is a pity no matter how you say it. And its shameful. But if it can be "resurrected" by replacing the warhead, that is another matter entirely. Instead, it showed the imaginary enemy our ultra-high fault tolerance rate. Looking at the reaction of the audience below, Chang Haonan knew that his purpose of writing that report was probably more than half successful. But now was not the time to be happy, so he calmed down and continued: "The second category is the traditional wing-body combination model." "The combined aerodynamic layout has a fuselage in the traditional sense, so the internal space is used very efficiently. The aerodynamic design technology has the basis and experience of traditional design ideas, but its design must be completely carried out in a three-dimensional sense, and its shock wave system is very It is complex, and the cost of R&D and manufacturing is very high. It was precisely for this reason that Academician Qian vetoed my country''s space shuttle program..." "The third category is the aerodynamic layout of the lifting body. Its characteristics are similar to the wing-body assembly, but the shape is completely incompatible with the use of air as the oxidizer. It must be launched using a launch vehicle..." After more advanced thermal response and thermal protection technologies are obtained in the future, the above two configurations can be considered for use in aviation/spacecraft for space-to-ground transportation such as aerospace planes, or weapon launch platforms. However, due to the high cost, Not suitable for use as disposable ammunition per se..." Chang Haonan originally planned to quickly get over these two parts that were not the focus of today. But one of the two chiefs in the middle is clearly interested. He even raised his hand while recording in his notebook. Laughing to death, the leader raised his hand, of course it cannot really be taken as a request. So Chang Haonan was really flattered and quickly stopped turning the page. "Comrade Haonan, you just mentioned the issue of thermal response and thermal protection. It happened that the previous report on the manned aerospace project mentioned that the thermal protection of the spacecraft return capsule, including the thermal protection of the US space shuttle, is one-time. It can only take effect within a short time of re-entry. The other party raised his head and said in a kind tone: "If the hypersonic aircraft you are talking about needs to fly within the atmosphere for a long time, is there a relatively mature, or at least confirmed, effective technology to protect the aircraft itself?" Chang Haonan''s original plan actually had some relevant content, even involving the analysis method of structural temperature field and stress field, but it was later deleted because of the audience''s acceptance. Now that someone asked about it, he summed it up: "In terms of appearance, the waverider does have sharp edges and the aerodynamic heat peak is more serious than the edge of the blunt body, but the nozzle can be set at the symmetrical center position of the front end of the flying body, and the total pressure ratio between the jet and the mainstream reaches When 0.35 or higher, it can interfere with or even isolate the mainstream flow field to achieve better thermal protection effect. "Of course, more specific research needs to be verified by relying on large-scale hypersonic wind tunnels and actual test flights..." The leader lowered his head and wrote a few words in the notebook. At the same time, he stretched out his hand slightly and said: "Okay, please continue." Chang Haonan: "OK." Well behaved.jpg Then continue turning the pages. "The next fourth type of configuration is relatively simple. It is similar to a traditional slender aircraft fuselage. If a rocket engine is used, it is an axisymmetric cone or a double cone. If an air-breathing engine is used, it can be like a head. The air-intake fighter uses the Mach cone to reduce wave resistance and provide inlet air conditions for the engine. "This design is not difficult, the control system is simple, and the manufacturing cost is low. Although the internal space utilization is limited, it is still better than the traditional waverider. The disadvantage is that the lift and resistance are relatively low, so the speed potential is limited and it is difficult to Reaching more than 7 times the speed of sound, it can be considered for use in early models of hypersonic weapons, carried by ballistic missiles or high-altitude and high-speed aircraft, to shorten the transfer time of enemy targets. " Chang Haonan simply did not discuss the interception. Judging from the experience of the previous life, China''s imaginary enemies in the foreseeable future basically do not have the ability to intercept hypersonic weapons in the atmosphere. Hearing this, Qiao Chenqing paused slightly, seemingly interested. After all, Chang Haonan mentioned "carrying by ultra-high-speed aircraft". Therefore, from the perspective of the former, this is obviously the most effective weapon that the Air Force can obtain when it is temporarily unable to involve nuclear weapons. However, he looked at the situation around him and finally did not speak. At this time, Chang Haonan paused for a moment, then took a deep breath and entered the most important part of his entire report. "This is the last one, and it is also the configuration that my research group is focusing on." As he clicked the mouse again, an imposing three-dimensional rendering resembling a shark''s mouth appeared on the screen. "A two-dimensional hypersonic aircraft based on the concept of waverider layout, referred to as a waverider-like aircraft." This somewhat unpronounceable name took a while for the big guys to digest. Fortunately, the phrase structure is clear and not difficult to understand. "This type of aircraft retains the advantages of the waverider. Its shape has the same sharp leading edge as the waverider, so it has smaller wave resistance and higher lift-to-drag ratio. It also has a wing-body assembly layout volume ratio. The big advantage is that it can accommodate both autonomous power and mission payloads with relative ease. "More importantly, the two-dimensional characteristics of this kind of aerodynamic shape can easily construct the precursor shock wave system, which fully meets the air intake conditions of the scramjet propulsion system, and only needs to use a rocket booster with a limited volume to provide With an initial speed of about five times the speed of sound, it can fly normally in the atmosphere like an ordinary cruise missile, and if a dual-mode scramjet engine is used, this initial speed can be reduced to about three times the speed of sound..." "At the same time, thanks to the powerful precursor shock wave and lift-to-drag ratio, the maximum speed potential of this configuration can reach 12-15 times the speed of sound, which is approximately equivalent to 4-5km/s, which is approximately 16,200km/h..." Chang Haonan marked several numbers on the PPT in bold black fonts. But even so, for most people, this speed is still too terrifying to establish an intuitive concept. However, he also has a good idea - The next PPT page is a complete world map. However, with the capital as the center, a circle with a radius of 16,200km was drawn... Except for Brazil, Chile and parts of Antarctica, almost the entire earth''s land is included. Chang Haonan swore that the moment this picture appeared, he heard more than one breath. But he still used the greatest willpower to resist the temptation to "look back". Instead, he came directly to the curtain and pointed to the edge of the circle on the map: "As an intra-atmospheric vehicle, this weapon does not need to consider the ascending stage of the ballistic trajectory." "That is to say, it can hit almost any location on the earth within one hour after launch!" (End of chapter) Chapter 1174 financial support Chapter 1174 Financial Support Across the world in one hour. Strictly speaking, this is not a new concept. In the 1990s, the United States proposed the hypersonic cruise missile "Quick Eagle" to replace Tomahawk. The goal was to be able to attack any target within the territory of the main imaginary enemy within one hour. However, this plan coincided with the abolition of a large number of projects after the end of the Cold War, and ended in an anticlimactic manner after a few failed experiments. In the last life, what really made this slogan ring around the world was the X51A "Waverider" technology verification aircraft, which was only released in 2007. It was planned to end the ground experiment in 2008 and conduct four test launches starting in 2009, and then officially Consider introducing weaponization. Of course, the final result is well known - We''re setting up a national hypersonics club, and guess who didn''t get the invite? In short, in 2005, Chang Haonan shouted this slogan in advance, which is undoubtedly very eye-catching. Especially compared with the previous solutions that often use launch vehicles for delivery, the final product of the waverider-like configuration is a cruise missile with a relatively low sensitivity, but no weak deterrence. The threshold for use is relatively low. Of course, even if you just look at Chang Haonan''s PPT introduction, you can imagine that product design with this configuration is probably the most difficult of all. Seeing that all the five configurations mentioned at the beginning had been introduced, Qiao Chenqing, who had been eager to try it out, finally couldn''t restrain his desire to ask questions and raised his hand almost impatiently - The big boss had already given him a sample just now, so of course it was not easy for him to speak directly. "Excuse me." Chang Haonan has basically finished talking about the most important content. Of course, there is still a lot of space to follow, but due to time constraints, it is impossible to talk about everything in detail. Therefore, Qiao Chenqing''s question just helped him. "Comrade Haonan, you just introduced a total of three hypersonic flight body configurations with military potential. Of course, the fourth one, whether using rocket power or air-breathing power, is relatively conventional, but the first and The fifth type requires non-ballistic movement within the atmosphere for a long time, which is very different from the traditional ballistic missiles and cruise missiles we are familiar with in the past, so how should it be controlled? " As the head of the Air Force, he naturally began to consider the issue of weapons combat efficiency. Hearing this question that was right in his mind, Chang Haonan smiled, and then turned the PPT directly to more than 20 pages later. "For traditional gliding waveriders, during the process of re-entering the atmosphere, they generally choose one of the two ballistic trajectories as shown in the figure. Among them, the Sanger trajectory will perform multiple jumps at the edge of the atmosphere, while the Qian Xuesen trajectory will Only one reentry maneuver, followed by an unpowered glide at the edge of the atmosphere..." "But no matter which one, the re-entry and return stage can be divided into the initial re-entry stage, the energy management stage and the final impact stage. Considering the limitations of dynamic pressure, overload and thermal management, it is difficult for a hypersonic flight body to resemble Large-sized airfoils are arranged like conventional aircraft, so it is necessary to control the flight height by changing the angle of attack, and control the flight direction by changing the roll angle..." "Technically speaking, the simplest way is to use reference trajectory guidance, that is, select a relatively narrow reentry range before the mission is executed, generate a set of standard trajectories in advance as a reference, and finally design a trajectory tracking law to control the reference trajectory Carry out tracking control so that it coincides with the standard trajectory line..." For today''s report, Chang Haonan specially simplified many proper nouns and calculation parts, so Qiao Chenqing quickly understood the contents of the PPT and nodded thoughtfully. This reference trajectory guidance is essentially similar to the guidance method of ballistic missiles. They all determine a trajectory in advance and then fly along the preset path. Essentially, the flying body does not need to know where it is, it only needs to know when to make what action. If combined with some measurement and control capabilities, the flight trajectory can also be calibrated to improve reentry accuracy. But...the shortcomings are also obvious. "Comrade Haonan, you just said that we need to track and control the actual trajectory and reference trajectory of the flying object, but if we want to hit an enemy target, it is impossible to complete this process on the ground...I am afraid the enemy will not cooperate with us. ? Qiao Chenqing continued to ask in a half-joking tone. "Yes, so this method can only be used in the technical verification stage to improve our understanding and knowledge of the waverider gliding trajectory." Chang Haonan nodded, and then added: "Of course, reference trajectory guidance can also be used in the aerospace field. For those spacecraft that exceed the speed of the second universe, it is difficult to solve the overload and heat caused by direct re-entry into the atmosphere, so multi-stage deceleration can be carried out through the Senger ballistics..." "Exceeding the speed of the second universe?" The other chief who had been silent just now raised his head. "That''s right...for example, this technology may be used when returning from the moon or Mars orbit in the future." Chang Haonan originally just said it casually, but since someone is really interested in this detail, he is happy to expand on it. It just so happens that we can impress our superiors about deep space exploration. If possible, it would be great to do a few re-entry tests with the help of aerospace projects. However, the other party just nodded and did not pursue the question further. Instead, he motioned for Chang Haonan to continue the topic. The latter then turned to a page of PPT: "In short, for a truly practical weapon, it is necessary to adopt a prediction-correction guidance method that does not rely on a specific reference trajectory. Simply put, it means to compare the deviation between the predicted impact point and the theoretical impact point in real time during each guidance cycle. , and then correct the angle of attack and roll in real time based on the settlement results. "However, this method will produce a large number of partial differential equations during the solution process, which not only requires high performance of the missile-borne computer, but may also lead to failure of convergence and guidance failure... My research team and I are working on this There is a certain amount of technical accumulation and research results in this field, but more test data is still needed to ensure the accuracy and reliability of the solution..." "As for the last one just mentioned, because the waverider-like configuration always flies at a relatively low altitude in the atmosphere, the control strategy is close to that of existing supersonic cruise missiles, except for the control of rudder surfaces, motors, etc. The performance requirements of the hardware are quite demanding, requiring us to make major improvements in basic capabilities..." At this time in 2005, China already had a certain research foundation for bicones and traditional waveriders. The most that Chang Haonan could do was to provide some additional research resources and basic theoretical help. Therefore, he naturally focused his attention on the waverider configuration. It is inevitable to say a few good words. "What about guidance?" Qiao Chenqing quickly wrote down what Chang Haonan had introduced before, and then continued to ask: "Gliding ballistics can also be autonomously guided by a combination of inertial navigation and starlight navigation. However, cruise missiles always need to rely on external signals, whether it is satellite positioning systems or radar echoes, to find their targets. Will high-speed flight in the atmosphere cause problems? Produce a black barrier similar to that produced by a spacecraft during re-entry into the atmosphere? Asking such specific questions often represents real interest. Chang Haonan was overjoyed, but on the surface he still controlled his expression: "For hypersonic cruise missiles with relatively low speeds, that is, within the range of 6-8 times the speed of sound, as long as the aerodynamic shape is properly designed, plasma ionization will hardly be stimulated. As long as the mid-course satellite guidance is used like ordinary cruise missiles, It can be combined with terminal active radar/optical imaging guidance. "If the speed is further increased, as you said, the shielding of electromagnetic signals by the plasma sheath needs to be considered..." Because this part of the content involves a lot of specific calculations, it is not left in the PPT. So Chang Haonan paused slightly when he said this, and then looked at a security guard not far away: "Please bring me something I can write on..." The latter quickly brought a whiteboard to Chang Haonan: "Sorry, Academician Chang, there is no blackboard prepared here at Jingxi Hotel..." Chang Haonan shook his head slightly to express that it didn''t matter, and then returned to the stage. "I''ll try to explain it in a simpler way..." He showed an apologetic smile, and then drew an electromagnetic wave transmission vector diagram on the whiteboard. "What we usually call a black barrier is a very broad concept. In fact, the plasma sheath excited by high heat does not absorb all electromagnetic waves indiscriminately, but is non-uniformly dynamic and non-magnetized..." "A sharp-nosed aircraft is different from a blunt-nosed aircraft. Its sheath is a layer of structure attached to the side wall of the aircraft. The thickness is only about 2-4 centimeters. In the vertical direction of the side wall, the electron density and collision frequency produce similar effects. The situation of discontinuous surfaces, so for millimeter waves with shorter wavelengths and longer decimeter waves, under certain conditions, it can be penetrated through the plasma layer by applying a magnetic field, etc., to achieve satellite or radar guidance..." When Chang Haonan reached the end of the story, there were only a few people who were still lowering their heads to record. Most of the audience just watched him write and draw on the whiteboard. Fortunately, although the process is a bit complicated, the conclusion is indeed very simple. It''s that he has a way to make electromagnetic waves overcome the black barrier. Most of those who can sit in this room have been exposed to or understood the manned space project, and know what the black barrier is about. Therefore, Chang Haonan''s statement is almost a statement that overthrows the world view. But with the previous content and his achievements in the past ten years as a foreshadowing, it doesn''t seem that difficult to accept. Not long after, a group of leaders started discussing in front of Chang Haonan. Now that the theoretical foundation, overall configuration, and research direction are all in place, it is obvious that there is only one last element left before the project is launched Make money. (End of chapter) Chapter 1175 forward detonation drive Chapter 1175 Forward Detonation Drive Later in the day. In a conference room of the Institute of Mechanics of the Chinese Academy of Sciences, an internal meeting of the State Key Laboratory of High Temperature Gas Dynamics was taking place. Compared with its specifications, the layout of the venue can be said to be simple to a bit crude. Not only was there no decoration, even the theme of the meeting was directly projected on a curtain with a PPT with black characters on a white background "Ultra-high speed reappearance wind tunnel and shock wave reflection forward detonation drive technology system". It is not difficult to see that this meeting was more like an impromptu meeting. Generally speaking, academic meetings of this level require preparations like Chang Haonan''s for a period of time in advance. Otherwise, even people in the industry would find it difficult to memorize all relevant knowledge entirely by relying on their brains. However, this time, although everyone in the venue also remained silent, the atmosphere was not at all cold. Instead, he was a little anxious. After looking around the people around the conference table, Academician Yu Hongru, who was sitting at the head, slowly took a deep breath, and then finally broke the silence: "A few days ago, my superiors asked me to make a report. The topic was about the current research status of ultra-high-speed wind tunnels and hypersonic aircraft." "Although the chief did not disclose much information, judging from the recent situation, I think it is very likely that he is preparing to increase investment in our research direction... It has happened that almost six years have passed since the JF10 wind tunnel passed the acceptance test in 1998. Over the past year and a half, we have accumulated a certain amount of experience and lessons, so I am going to let you discuss the key research directions for the new generation of ultra-high-speed wind tunnels. In the past two or three years, as the country''s economic situation has gradually improved, rumors about the preparation of new wind tunnel projects have appeared almost every two or three months. Many people have already become desensitized. However, Academician Yu Hongru is, after all, a direct disciple of Mr. Guo Yonghuai, and the person in charge of the design of the third generation four-type high-speed wind tunnel of JF4, JF4A, JF8 and JF10. Although now he has been relegated to the second line due to his age, as long as he comes out and takes charge, his authority is still full. Therefore, everyone couldn''t help but cheer up when they heard the news coming from his own mouth. Almost as soon as Yu Hongru finished speaking, Chen Hong, who was sitting in the first place on the right, spoke first: "The success of the JF10 wind tunnel has proven that the technical route proposed by the academician, using Taylor''s self-similar solution of static high-pressure gas as the driving gas source, and using the vacuum detonation section to eliminate the high pressure reflected by the detonation wave is completely feasible, but from a practical point of view , the test time of the JF10 wind tunnel is still too short to conduct practical hypersonic research such as aspiration power or flame/plume interaction. "Therefore, I believe that the top priority is to further improve the experimental time and reproduction accuracy based on the reverse detonation drive method, so that the new generation of wind tunnel can effectively serve the research and development of hypersonic aircraft, which can also be regarded as a step for superiors. " After a slight pause, he added: "In fact, I specifically checked the research route of Academician Chang from the Aerospace Power Group, and found that he attaches great importance to producing tangible results at every stage of long-term research. This increases the confidence of superior leaders and allocates money. Only by forming a positive cycle can he graduate from undergraduate to academician in 10 years..." Chen Hong''s attitude quickly won the support of many people present. Starting from the mid-1950s, the entire ultra-high-speed wind tunnel project can be said to have cost a lot of money and achieved many meaningful results. But compared to other research carried out at the same time, the products that can actually be touched and seen are quite limited - There is no need to mention two bombs and one star. Even the low-speed and medium-speed wind tunnels next door are also shining in the aerospace field, serving the design and development of many major models. Although the superiors have never expressed dissatisfaction with this, this is real pressure for everyone here. In particular, he gave a quite convincing example. However, Jiang Zonglin, who was sitting on the other side, quickly expressed his opposition: "The current detonation pressure is limited by the structure and materials of the drive section. The safe initial pressure that can be applied is only 20~50atm, and the reproducible flight Mach number limit will not exceed the level of 15, without considering the total temperature. "If calculated according to the reproduction of flight conditions, then JF10 can only give a total airflow temperature of 1500-2000K, which is far from enough for research with slightly higher requirements... In this case, only the experiment is solved The issues of time and reproduction accuracy may not help the specific projects of Aerospace Science and Industry. Jiang Zonglin is to some extent the successor of Academician Yu Hongru, and was actually responsible for many specific tasks during the development of the JF10 wind tunnel. Therefore, even though most people present were moved by Chen Hong''s proposal, he still put forward his own plan: "So I think the focus should continue to be on increasing the total airflow temperature." "Research on detonation theory shows that under the same initial pressure conditions of combustible gas, forward detonation has a driving capacity five times higher than reverse detonation, and NASA''s HYPULSE wind tunnel has proven this, but The Americans failed to successfully reconstruct the Taylor rarefaction wave into the required smooth incident shock wave in the driven section, which resulted in serious attenuation of the incident shock wave and prevented them from continuing in this direction. " Having said this, he picked up a schematic diagram that had been printed in front of him, turned it over and showed it to everyone present, and his whole aura suddenly became sharper: "But my research group has proposed a forward detonation driver that applies the principle of shock wave reflection as early as two years ago. As long as a shock wave reflection cavity is added to the detonation end of the forward detonation driver, it can Produce annular reflection and generate an upward shock wave of appropriate intensity to compensate for the pressure reduction of the driving airflow caused by the rarefaction wave, thereby improving the stability of the driving airflow. " "Judging from current engineering calculations, this technology can achieve a Mach number acceleration ratio of up to 3.6. If it is still not enough, then a hydrogen/oxygen mixed auxiliary detonation section can be added behind the shock wave reflection cavity. By changing Taylor The zero-velocity boundary condition of the self-similar solution further reduces the attenuation of sparse waves. Obviously, in Jiang Zonglin''s view, the failure of the Americans does not mean anything. He has already found a way to surpass the Americans in this field - In fact, NASA has even begun to try to replace part of the wind tunnel tests with numerical calculations due to the long-term problem of shock wave attenuation for forward detonations. After finishing his statement, perhaps in response to Chen Hong''s example just now, he also continued somewhat tit-for-tat: Academician Chang is indeed good at impressing superior leaders with tangible project results at every stage of long-term research, but it should also be noted that almost all the products he has produced have directly or indirectly promoted the leapfrog development of my countrys aviation industry. Progress, rather than tinkering with the old foundation. "Let''s not dwell on how he did it, but it is obvious that if our new wind tunnel only increases the terminal speed of the missile from three times the speed of sound to four times the speed of sound, it will probably be difficult to achieve the same results as usual. The same effect as an academician..." This speech was well-founded, and the key was that it raised questions while also providing solutions, so the situation quickly reversed. Of course, Chen Hong couldn''t just give up: "Lao Jiang, the shock wave reflection scheme you proposed is indeed feasible in principle, but both the Mach number acceleration ratio of 3.6 and the calculation parameters obtained so far are obtained through computational simulation, but hypersonic speeds, including hydrogen-oxygen explosion The calculation model of the bombardment process itself is not mature enough, so it is too radical to just start a large-scale project like this! Gradually, the debate entered a heated stage. However, just when the smell of gunpowder began to fill the air, there was a sudden knock on the door outside the conference room. A staff member walked in quickly and whispered something next to Academician Yu Hongru. The latter''s face changed slightly, and he paused for a while before looking at the crowd again: "You were all making fun of Academician Chang Haonan just now..." There was a hint of joking in his tone: "Academician Chang...is coming soon." (End of chapter) Chapter 1176 I want them all Chapter 1176 I want it all "Academician Chang?" After a silence that lasted for several seconds, Jiang Zonglin asked in a confused tone: "He doesn''t seem to have any direct relationship with our field, right?" He did know something about Chang Haonan, otherwise he wouldn''t have been able to explain those analyzes just now. But this is mainly due to the fact that the latter has been at the top of the domestic academic circle in the past two years, and it is inevitable that he will be mentioned in daily chats and gossips. In fact, it is just normal attention to the big guys in the same industry. Therefore, Jiang Zonglin quickly looked at Chen Hong with questioning eyes. After all, the other party just claimed to have specifically investigated Chang Haonan''s research route. However, Chen Hong just shook his head in confusion, saying that he was not aware that Chang Haonan had previously been involved in the field of hypersonics or shock wave wind tunnels. Although the others didn''t say anything, judging from their expressions, they probably had similar thoughts. Of course, it''s a little embarrassing. Although the incident just now could not be considered as speaking ill of people behind their backs, it could still be considered as using them as a weapon. Now that the main character is approaching at the speed of light, there is always a sense of deja vu as if someone was talking behind someone''s back only to be exposed in person. Fortunately, at this time, Academician Yu stood up slowly: "Anyway, I have to go pick up Academician Chang first, lest he can''t find the door..." The half-joking tone finally broke the slightly weird atmosphere of the scene. As he spoke, he picked up his coat from the back of the chair and put it on with the help of the staff next to him. In fact, he only knew at this moment that his superiors had assigned several companies and research institutions, including the Institute of Mechanics, Aerospace Science and Industry Group, and Aerospace Power Group, to jointly organize project demonstration and preliminary development of practical hypersonic vehicles. Pre-research. As for the more specific situation, we have to wait for the official documents to be issued. Or wait and see what other news there is from Chang Haonan. But in any case, as an essential infrastructure for hypersonic research, ultra-high-speed wind tunnels must be the top priority at this stage. In terms of resources, it will probably not be as tight as in the past few years... Upon seeing this, the rest of the people also stood up and prepared to go out to greet him. After all, the visitor is an academician, so he must be given enough respect. But Yu Hongru raised his hand to stop him: "Just wait here." "We don''t know the specific confidentiality level of this matter yet, but I''m afraid the pomp outside is not suitable for making it too big..." Everyone who can sit in this conference room is involved in highly sensitive projects. Some of them are older and even came from the two-bomb and one-satellite projects. So after listening to Yu Hongru''s explanation, they all sat back silently. It was not until Yu Hongru and the staff member left that some whispers resounded in the conference room. As for the topic, of course it still revolves around Chang Haonan who suddenly appeared. But soon, a voice came from an inconspicuous position at the end of the conference table: "I suddenly remembered that Academician Chang did seem to have published a paper related to hypersonics before..." Everyone''s eyes converged almost instantly. Among them, Chen Hongs face was filled with disbelief: "paper?" He paused for a moment: "Academician Chang''s papers are not very numerous in total. I should have read them all..." The person who just spoke was Li **, another proud disciple of Academician Yu Hongru and Jiang Zonglin''s junior brother. Because I just joined the Mechanics Institute a few years ago, I am a little transparent character most of the time. Now that he suddenly became the focus of the entire conference room, he was not used to it. "It was a paper written many years ago, and I only saw it accidentally..." Although paper retrieval software like CNKI had appeared in China as early as the late 1990s, in 2005, its database was still quite imperfect. Many papers, especially those from the last century, cannot be retrieved. As Li ** spoke, he operated on the laptop in front of him. Then turn it 180: "This is this article, published in 1996, "Research on the Integrated Layout of Dual-Modular Mandibular Inward-Turn Inlet/Conical Front Body"..." The computer screen was not big, and the distance between Chen Hong and Li ** was so far that it was difficult to see the specific content clearly. But even if he only heard the title, he was sure that he had never seen it. 1996 Chen Hong narrowed his eyes slightly: "Academician Chang was born in 1976. He was only 20 years old at that time. If you do the math, he should still be in...his junior year of college?" As soon as these words came out, the atmosphere in the entire conference room suddenly became a little tense. First, it is too old. Except for a few fields, papers written ten years ago are actually difficult to provide any useful guidance for cutting-edge research. Secondly... Junior year is really a bit too young. Engineering requires experience. Everyone knows that Chang Haonan''s first serious participation in a project was from the end of 1996 to the beginning of 1997. Therefore, few people paid special attention to the articles published before this. It''s no wonder that Chen Hong didn''t know about this at all. Even Li **, after going over the summary and conclusion again, said with some helplessness: "Well, this paper focuses on the transonic speed range... I just mentioned it at the end, saying that the same design method can be extended to a faster speed range, but after it exceeds five times the speed of sound, it is difficult to Replicating actual flight conditions, accuracy cannot be further guaranteed..." However, this unintentional sentence made Jiang Zonglin and Chen Hong, who were sitting in front, shine at the same time. Although the two of them had a fierce argument just now, their relationship is actually okay on weekdays. The moment their eyes met, it was obvious that the other person was thinking of the same thing as him. In the end, it was Jiang Zonglin who spoke first: "The idea of ??reproducing flight conditions was mentioned in 1996. It seems that Academician Chang has really been studying hypersonic issues since then..." Others who were still in the dark suddenly woke up. In fact, Chang Haonan had just been reborn that year, and most of his knowledge in his mind was related to the JF22 wind tunnel project in his previous life. Therefore, when writing that paper, I almost instinctively wrote some proper terms that were not widely circulated at that time. Strictly speaking, it should be considered a mistake. However, looking back nearly ten years later, it turned out to be evidence that he was fully forward-looking. There is a great Confucian who can argue the scriptures for me. Just as the discussion among everyone became heated again, a burst of chaotic footsteps came from the corridor outside. It was also mixed with the loud laughter of Academician Yu Hongru. Obviously, the rightful owner they had been discussing just now is already in place. Sure enough, just a few seconds later, the two doors were opened by two staff members at the same time, and a group of people headed by Academician Yu appeared outside. The obviously young person next to him was obviously Chang Haonan. "Academician Chang, please go first." "Please..." After some polite greetings, the two entered the conference room one after another. A dozen people around the table also stood up to show their welcome. Fortunately, the conference table was wide enough, so Chang Haonan directly added a chair and sat next to Yu Hongru. A layout of two first positions is formed. As for the rest of the people traveling with him, they were all Chang Haonan''s security and entourage personnel and did not participate in this meeting. After everyone sat down, Yu Hongru quickly returned to the topic: "Academician Chang is here just in time. Two of our institute''s most capable people were just discussing the next key development direction of ultra-high-speed wind tunnels..." While introducing the situation, he motioned to Jiang Zonglin and Chen Hong on both sides of the conference table: "Now, since the superiors want to develop a practical hypersonic aircraft, why not let you, the ''judge'', guide our subsequent work?" Although the superiors did not clarify in the verbal notification which unit the entire project will be based on, from the perspective of work development, the wind tunnel must be allowed to cooperate with the research and development of the aircraft, not the other way around. Moreover, on the way just now, Yu Hongru had heard that his superiors made the above decision only after hearing Chang Haonan''s report. So for the sake of safety, he chose to show his weakness by joking first. For Chang Haonan, sitting in the conference room of the Institute of Mechanics is like going home - He had basically worked with the dozen or so people around this table in his previous life, and he knew the level of the entire team very well. In fact, no specific business-level guidance is needed. Just give a certain direction and theoretical basis. I dont deserve the job of guidance He waved his hand and said humbly: "On the way here, including some time ago, I have read many reports on the JF series of ultra-high-speed wind tunnels, as well as the papers of Researcher Jiang and Researcher Chen. I am still a novice in wind tunnel engineering. I need to learn a lot from you..." However, after finishing the sentence, his tone suddenly became serious again: As for the hypersonic aircraft, my idea is to advance it in stages... First, we will come up with an entry-level hypersonic weapon with a speed of around Mach 5 and an axially symmetrical cone or bicone. At the same time, we will use relevant research to feed back the aerospace field and make real progress. We need to prove to our superiors the significance of our project... "So, the performance requirements for ultra-high-speed wind tunnels at this stage are that the airflow speed is 3-4km/s and the total temperature is not less than 4500-5000K... I know that your company has a shock wave reflection technology that can solve the problem of forward explosion. The problem of serious attenuation of the incident shock wave makes the wind tunnel achieve this performance index..." Hearing this, Jiang Zonglin''s eyes gradually brightened. This is exactly what he just advocated. But almost immediately after, Chang Haonan changed the topic again: "But in addition, to truly guide aircraft design, it is necessary to ensure a long enough experimental time, at least at the double-digit millisecond level. This can be achieved with the help of starting shock wave reflection control technology and shock wave/ Boundary layer pollution suppression technology to achieve..." "In addition, the wind tunnel needs to be able to reproduce the test data with relatively high accuracy. This requires the multi-fundamental interference wave system adaptation algorithm proposed by Researcher Chen. As for the hardware level... I can solve the problem of new high-sensitivity thermocouples through special channels. Of course, in the long run, it is more reliable to realize localization of supply..." The corners of Chen Hong''s mouth also curved... However, Yu Hongru gradually felt something was wrong - From what the other party meant, it was obvious that he wanted them all. Of course, there is nothing wrong with this since there will be resources in the future. The key question is Why does Academician Chang seem to know more about the research status of the Institute of Mechanics than we do? (End of chapter) Chapter 1177 Im here to solve the problem Chapter 1177 Im here to solve the problem Compared with the experienced Yu Hongru, Jiang Zonglin and Chen Hong''s mentality is obviously much simpler. It wasn''t until Chang Haonan''s speech ended that the two realized that the former was not prepared to choose between these two directions at all. At the beginning, I was naturally surprised. As long as there are enough resources, who doesnt want to get it right in one step? But the joyful mood did not last long. After Yu Hongru retreated to the second line, they were the ones actually responsible for implementing the wind tunnel research and development after all. And many problems cannot be solved simply by having money. "Academician Chang." After Chang Haonan''s speech ended, Chen Hong took over the conversation first: "I don''t mean to target anyone... but the experience we accumulated in the JF8 and JF10 wind tunnels in the past is based on reverse detonation detonation technology, while forward detonation combined with the shock wave reflection principle affects the overall structure of the wind tunnel. The core technical route, if we want to achieve high total airflow temperature and long experimental time in the same wind tunnel, then the construction period..." Everyone knows the speed of Chang Haonan''s work. If it takes four or five years to build a wind tunnel alone, it may be difficult to meet his requirements. Therefore, even Jiang Zonglin, who was targeted without naming him, did not immediately refute. After all, the problems Chen Hong mentioned do exist objectively. But now that the project is right in front of him, he can''t let go of this opportunity no matter what. So, Jiang Zonglin gritted his teeth and stated firmly: "The design method of the shock wave reflection cavity and the auxiliary detonation section is indeed still at the stage of theoretical analysis and numerical simulation. To be implemented in the wind tunnel, more sufficient test data support is needed, but we have basically solved the problem of one-dimensional Application issues of combustion model under detonation wave conditions..." "Academician Chang, you are an expert in the field of numerical calculation. You should know that in actual work, you can generalize the one-dimensional model to obtain the fundamental wave of the high-dimensional solution, so the efficiency should be much faster than expected... My team and I I guarantee that it will not delay the entire project! Chen Hong on the opposite side didn''t really want to suppress Jiang Zonglin, so he didn''t add insult to injury further. Just waiting quietly for feedback from Yu Hongru or Chang Haonan. "The JF10 wind tunnel has been in use for six years and is about to undergo routine maintenance and upgrades..." Yu Hongru said and looked at Chen Hong: "Xiao Chen, if you act quickly enough, you can put the two technologies of starting shock wave reflection control and shock wave/boundary layer pollution suppression into the JF10 wind tunnel for several rounds of testing first... wait until the other parts After the research progresses, we will put them together to comprehensively consider the specific design plan of the new wind tunnel. "As for Xiao Jiang..." Speaking of which, he was a little stuck. On the one hand, Jiang Zonglin, as his direct disciple, really couldn''t show too much bias. On the other hand, Yu Hongru has spent his entire career studying reverse detonation coupling detonation technology. He can only say that he has some understanding of the theory proposed by Jiang Zonglin, but he is really not sure of the specific progress. Seeing the other party''s embarrassed look, Chang Haonan quickly came to the rescue: "Actually, Researcher Jiang doesn''t have to worry too much about the progress." As he spoke, he bent down and took out his laptop from his bag and put it on the table: "The reason why I came here this time is actually to solve the theoretical problem of detonation calculation..." Jiang Zonglin was stunned at first, and then quickly turned into surprise. But he quickly controlled the expression on his face, as if he couldn''t believe such a coincidence: "Calculation...you mean the Chapman-Jouguet combustion equation?" As we all know, combustion is essentially a redox reaction that produces heat and light. Since the reaction itself generates heat, and the three elements of combustion include the ignition point, combustion can usually spread spontaneously when there are sufficient combustibles and combustion accelerants. Traditionally, people refer to the low-speed combustion process as deflagration, and the high-speed and violent combustion process as detonation. Therefore, problems such as the propagation and reflection of detonation waves are essentially a combustion problem. If the Chapman-Jouguet combustion equation under high-dimensional conditions can be overcome, even partially, then many problems that originally required experiments can be solved on paper. Chang Haonan smiled and nodded: "That''s right, some time ago, I specifically studied the self-similarity problem of the two-dimensional simplified C-J model with the help of high-dimensional conservation laws..." While he was speaking, Jiang Zonglin had already taken the initiative to connect Chang Haonan''s computer to the projector. . The original line of titles on the curtain suddenly disappeared and was replaced by a new page of PPT. The above is an equation that is quite familiar to everyone here. "Researcher Jiang just said that you have already studied the one-dimensional CJ ??combustion model, so I will start directly from here..." Chang Haonan turned around and gestured briefly, then continued: "For the global solution of a type of n-dimensional combustion model, the initial boundary is an n-1-dimensional smooth manifold, which can be a curved bounded complex surface, or any other form that meets the requirements. In short, as long as it passes through the appropriate coordinates After transformation, the solution to the original equation can be reconstructed. "Considering the working characteristics of the wind tunnel, we will not consider higher-dimensional issues for the time being, and only limit this equation to two dimensions..." "In the actual combustion process, the boundaries of combustibles are basically curves or surfaces... We construct a non-self-similar solution of the combustion model and analyze its complex geometric structure, and compare the high-dimensional non-self-similar solution with the one-dimensional self-similar solution. Different, it is easy to discover the new spatial structure characteristics of the detonation wave..." Soon, a staged conclusion appeared on the PPT: "If for any xR, there is [-\''(x)f(u+)+g(u+)]-[-\''(x)f(u-)+g(u-)]> 0 is established, then when q0